From 6f231dda68080759f1aed3769896e94c73099f0f Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Sat, 2 Jul 2011 22:56:22 -0700 Subject: isci: Intel(R) C600 Series Chipset Storage Control Unit Driver Support for the up to 2x4-port 6Gb/s SAS controllers embedded in the chipset. This is a snapshot of the first publicly available version of the driver, commit 4c1db2d0 in the 'historical' branch. git://git.kernel.org/pub/scm/linux/kernel/git/djbw/isci.git historical Signed-off-by: Maciej Trela Signed-off-by: Dave Jiang Signed-off-by: Edmund Nadolski Signed-off-by: Dan Williams --- drivers/scsi/isci/port.h | 153 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 153 insertions(+) create mode 100644 drivers/scsi/isci/port.h (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h new file mode 100644 index 00000000000..b01b0c63e53 --- /dev/null +++ b/drivers/scsi/isci/port.h @@ -0,0 +1,153 @@ +/* + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * BSD LICENSE + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * This file contains the isci_port object definition. + * + * port.h + */ + +#if !defined(_ISCI_PORT_H_) +#define _ISCI_PORT_H_ + +struct isci_phy; +struct isci_host; + + +enum isci_status { + isci_freed = 0x00, + isci_starting = 0x01, + isci_ready = 0x02, + isci_ready_for_io = 0x03, + isci_stopping = 0x04, + isci_stopped = 0x05, + isci_host_quiesce = 0x06 +}; + +/** + * struct isci_port - This class represents the port object used to internally + * represent libsas port objects. It also keeps a list of remote device + * objects. + * + * + */ +struct isci_port { + + struct scic_sds_port *sci_port_handle; + + enum isci_status status; + struct isci_host *isci_host; + struct asd_sas_port sas_port; + struct list_head remote_dev_list; + spinlock_t remote_device_lock; + spinlock_t state_lock; + struct list_head domain_dev_list; + struct completion start_complete; + struct completion hard_reset_complete; + enum sci_status hard_reset_status; +}; + +#define to_isci_port(p) \ + container_of(p, struct isci_port, sas_port); + +enum isci_status isci_port_get_state( + struct isci_port *isci_port); + + + +void isci_port_formed( + struct asd_sas_phy *); + +void isci_port_deformed( + struct asd_sas_phy *); + +void isci_port_bc_change_received( + struct isci_host *isci_host, + struct scic_sds_port *port, + struct scic_sds_phy *phy); + +void isci_port_link_up( + struct isci_host *isci_host, + struct scic_sds_port *port, + struct scic_sds_phy *phy); + +void isci_port_link_down( + struct isci_host *isci_host, + struct isci_phy *isci_phy, + struct isci_port *port); + +void isci_port_ready( + struct isci_host *isci_host, + struct isci_port *isci_port); + +void isci_port_not_ready( + struct isci_host *isci_host, + struct isci_port *port); + +void isci_port_init( + struct isci_port *port, + struct isci_host *host, + int index); + +void isci_port_hard_reset_complete( + struct isci_port *isci_port, + enum sci_status completion_status); + +int isci_port_perform_hard_reset( + struct isci_port *isci_port_ptr, + struct isci_phy *isci_phy_ptr); + +#endif /* !defined(_ISCI_PORT_H_) */ + -- cgit v1.2.3-70-g09d2 From 8acaec1593526f922ff46812d99abf9aab5c8b43 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Mon, 7 Mar 2011 14:47:35 -0800 Subject: isci: kill "host quiesce" mechanism The midlayer is already throttling i/o in the places where host_quiesce was trying to prevent further i/o to the device. It's also problematic in that it holds a lock over GFP_KERNEL allocations. Signed-off-by: Dan Williams --- drivers/scsi/isci/port.h | 1 - drivers/scsi/isci/remote_device.c | 27 ++------------------- drivers/scsi/isci/remote_device.h | 22 ------------------ drivers/scsi/isci/task.c | 49 +++++---------------------------------- 4 files changed, 8 insertions(+), 91 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index b01b0c63e53..b864d70363e 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -73,7 +73,6 @@ enum isci_status { isci_ready_for_io = 0x03, isci_stopping = 0x04, isci_stopped = 0x05, - isci_host_quiesce = 0x06 }; /** diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index 0eb5c7330fa..fc1f2444917 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -267,36 +267,13 @@ isci_remote_device_alloc(struct isci_host *isci_host, struct isci_port *port) INIT_LIST_HEAD(&isci_device->reqs_in_process); INIT_LIST_HEAD(&isci_device->node); - isci_device->host_quiesce = false; spin_lock_init(&isci_device->state_lock); - spin_lock_init(&isci_device->host_quiesce_lock); isci_remote_device_change_state(isci_device, isci_freed); return isci_device; } -/** - * isci_device_set_host_quiesce_lock_state() - This function sets the host I/O - * quiesce lock state for the remote_device object. - * @isci_device,: This parameter points to the isci_remote_device object - * @isci_device: This parameter specifies the new quiesce state. - * - */ -void isci_device_set_host_quiesce_lock_state( - struct isci_remote_device *isci_device, - bool lock_state) -{ - unsigned long flags; - - dev_dbg(&isci_device->isci_port->isci_host->pdev->dev, - "%s: isci_device=%p, lock_state=%d\n", - __func__, isci_device, lock_state); - - spin_lock_irqsave(&isci_device->host_quiesce_lock, flags); - isci_device->host_quiesce = lock_state; - spin_unlock_irqrestore(&isci_device->host_quiesce_lock, flags); -} /** * isci_remote_device_ready() - This function is called by the scic when the @@ -314,8 +291,8 @@ void isci_remote_device_ready(struct isci_remote_device *isci_device) "%s: isci_device = %p\n", __func__, isci_device); /* device ready is actually a "ready for io" state. */ - if ((isci_starting == isci_remote_device_get_state(isci_device)) || - (isci_ready == isci_remote_device_get_state(isci_device))) { + if (isci_device->status == isci_starting || + isci_device->status == isci_ready) { spin_lock_irqsave(&isci_device->isci_port->remote_device_lock, flags); isci_remote_device_change_state(isci_device, isci_ready_for_io); diff --git a/drivers/scsi/isci/remote_device.h b/drivers/scsi/isci/remote_device.h index cd43c15f009..af03039c12f 100644 --- a/drivers/scsi/isci/remote_device.h +++ b/drivers/scsi/isci/remote_device.h @@ -68,8 +68,6 @@ struct isci_remote_device { struct list_head reqs_in_process; struct work_struct stop_work; spinlock_t state_lock; - spinlock_t host_quiesce_lock; - bool host_quiesce; }; static inline struct scic_sds_remote_device *to_sci_dev(struct isci_remote_device *idev) @@ -84,22 +82,6 @@ static inline struct scic_sds_remote_device *to_sci_dev(struct isci_remote_devic #define ISCI_REMOTE_DEVICE_START_TIMEOUT 5000 -/** - * This function gets the status of the remote_device object. - * @isci_device: This parameter points to the isci_remote_device object - * - * status of the object as a isci_status enum. - */ -static inline -enum isci_status isci_remote_device_get_state( - struct isci_remote_device *isci_device) -{ - return (isci_device->host_quiesce) - ? isci_host_quiesce - : isci_device->status; -} - - /** * isci_dev_from_domain_dev() - This accessor retrieves the remote_device * object reference from the Linux domain_device reference. @@ -146,10 +128,6 @@ bool isci_device_is_reset_pending( void isci_device_clear_reset_pending( struct isci_remote_device *isci_device); -void isci_device_set_host_quiesce_lock_state( - struct isci_remote_device *isci_device, - bool lock_state); - void isci_remote_device_change_state( struct isci_remote_device *isci_device, enum isci_status status); diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index c637bbc215c..98204b03164 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -81,7 +81,6 @@ int isci_task_execute_task(struct sas_task *task, int num, gfp_t gfp_flags) struct isci_request *request = NULL; struct isci_remote_device *device; unsigned long flags; - unsigned long quiesce_flags = 0; int ret; enum sci_status status; @@ -151,21 +150,7 @@ int isci_task_execute_task(struct sas_task *task, int num, gfp_t gfp_flags) isci_host = isci_host_from_sas_ha(task->dev->port->ha); - /* check if the controller hasn't started or if the device - * is ready but not accepting IO. - */ - if (device) { - - spin_lock_irqsave(&device->host_quiesce_lock, - quiesce_flags); - } - /* From this point onward, any process that needs to guarantee - * that there is no kernel I/O being started will have to wait - * for the quiesce spinlock. - */ - - if ((device && ((isci_remote_device_get_state(device) == isci_ready) || - (isci_remote_device_get_state(device) == isci_host_quiesce)))) { + if (device && device->status == isci_ready) { /* Forces a retry from scsi mid layer. */ dev_warn(task->dev->port->ha->dev, @@ -179,8 +164,7 @@ int isci_task_execute_task(struct sas_task *task, int num, gfp_t gfp_flags) if (device) dev_dbg(task->dev->port->ha->dev, "%s: device->status = 0x%x\n", - __func__, - isci_remote_device_get_state(device)); + __func__, device->status); /* Indicate QUEUE_FULL so that the scsi midlayer * retries. @@ -194,7 +178,7 @@ int isci_task_execute_task(struct sas_task *task, int num, gfp_t gfp_flags) isci_host_can_dequeue(isci_host, 1); } /* the device is going down... */ - else if (!device || (isci_ready_for_io != isci_remote_device_get_state(device))) { + else if (!device || device->status != isci_ready_for_io) { dev_dbg(task->dev->port->ha->dev, "%s: task %p: isci_host->status = %d, " @@ -207,8 +191,7 @@ int isci_task_execute_task(struct sas_task *task, int num, gfp_t gfp_flags) if (device) dev_dbg(task->dev->port->ha->dev, "%s: device->status = 0x%x\n", - __func__, - isci_remote_device_get_state(device)); + __func__, device->status); /* Indicate SAS_TASK_UNDELIVERED, so that the scsi * midlayer removes the target. @@ -247,11 +230,6 @@ int isci_task_execute_task(struct sas_task *task, int num, gfp_t gfp_flags) isci_host_can_dequeue(isci_host, 1); } } - if (device) { - spin_unlock_irqrestore(&device->host_quiesce_lock, - quiesce_flags - ); - } task = list_entry(task->list.next, struct sas_task, list); } while (--num > 0); return 0; @@ -442,14 +420,11 @@ int isci_task_execute_tmf( /* sanity check, return TMF_RESP_FUNC_FAILED * if the device is not there and ready. */ - if (!isci_device || - ((isci_ready_for_io != isci_remote_device_get_state(isci_device)) && - (isci_host_quiesce != isci_remote_device_get_state(isci_device)))) { + if (!isci_device || isci_device->status != isci_ready_for_io) { dev_dbg(&isci_host->pdev->dev, "%s: isci_device = %p not ready (%d)\n", __func__, - isci_device, - isci_remote_device_get_state(isci_device)); + isci_device, isci_device->status); return TMF_RESP_FUNC_FAILED; } else dev_dbg(&isci_host->pdev->dev, @@ -986,9 +961,6 @@ int isci_task_lu_reset( return TMF_RESP_FUNC_FAILED; } - /* Stop I/O to the remote device. */ - isci_device_set_host_quiesce_lock_state(isci_device, true); - /* Send the task management part of the reset. */ if (sas_protocol_ata(domain_device->tproto)) { ret = isci_task_send_lu_reset_sata( @@ -1004,9 +976,6 @@ int isci_task_lu_reset( isci_device, terminating); - /* Resume I/O to the remote device. */ - isci_device_set_host_quiesce_lock_state(isci_device, false); - return ret; } @@ -1627,9 +1596,6 @@ int isci_bus_reset_handler(struct scsi_cmnd *cmd) if (isci_host != NULL) spin_unlock_irqrestore(&isci_host->scic_lock, flags); - /* Stop I/O to the remote device. */ - isci_device_set_host_quiesce_lock_state(isci_dev, true); - /* Make sure all pending requests are able to be fully terminated. */ isci_device_clear_reset_pending(isci_dev); @@ -1671,8 +1637,5 @@ int isci_bus_reset_handler(struct scsi_cmnd *cmd) "%s: cmd %p, isci_dev %p complete.\n", __func__, cmd, isci_dev); - /* Resume I/O to the remote device. */ - isci_device_set_host_quiesce_lock_state(isci_dev, false); - return TMF_RESP_FUNC_COMPLETE; } -- cgit v1.2.3-70-g09d2 From 1a38045ba88ed3bee6c57444670fb639c8b61be7 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 3 Mar 2011 18:01:43 -0800 Subject: isci: replace remote_device_lock with scic_lock The remote_device_lock is currently used to protect a controller global resource (RNCs), but the remote_device_lock is per-port. Signed-off-by: Dan Williams --- drivers/scsi/isci/port.c | 1 - drivers/scsi/isci/port.h | 1 - drivers/scsi/isci/remote_device.c | 14 +++++--------- 3 files changed, 5 insertions(+), 11 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 30da3ec703e..a5b2565ac5a 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -94,7 +94,6 @@ void isci_port_init( INIT_LIST_HEAD(&isci_port->remote_dev_list); INIT_LIST_HEAD(&isci_port->domain_dev_list); - spin_lock_init(&isci_port->remote_device_lock); spin_lock_init(&isci_port->state_lock); init_completion(&isci_port->start_complete); isci_port->isci_host = isci_host; diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index b864d70363e..b7a7dd7dca6 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -90,7 +90,6 @@ struct isci_port { struct isci_host *isci_host; struct asd_sas_port sas_port; struct list_head remote_dev_list; - spinlock_t remote_device_lock; spinlock_t state_lock; struct list_head domain_dev_list; struct completion start_complete; diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index 48556e47bb9..1dae2184b9e 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -287,16 +287,13 @@ isci_remote_device_alloc(struct isci_host *ihost, struct isci_port *iport) void isci_remote_device_ready(struct isci_remote_device *idev) { struct isci_host *ihost = idev->isci_port->isci_host; - unsigned long flags; dev_dbg(&ihost->pdev->dev, - "%s: isci_device = %p\n", __func__, idev); + "%s: idev = %p\n", __func__, idev); - spin_lock_irqsave(&idev->isci_port->remote_device_lock, flags); isci_remote_device_change_state(idev, isci_ready_for_io); if (test_and_clear_bit(IDEV_START_PENDING, &idev->flags)) wake_up(&ihost->eventq); - spin_unlock_irqrestore(&idev->isci_port->remote_device_lock, flags); } /** @@ -432,7 +429,6 @@ void isci_remote_device_gone(struct domain_device *dev) */ int isci_remote_device_found(struct domain_device *domain_dev) { - unsigned long flags; struct isci_host *isci_host; struct isci_port *isci_port; struct isci_phy *isci_phy; @@ -474,12 +470,12 @@ int isci_remote_device_found(struct domain_device *domain_dev) isci_remote_device_change_state(isci_device, isci_starting); - spin_lock_irqsave(&isci_port->remote_device_lock, flags); + spin_lock_irq(&isci_host->scic_lock); list_add_tail(&isci_device->node, &isci_port->remote_dev_list); set_bit(IDEV_START_PENDING, &isci_device->flags); status = isci_remote_device_construct(isci_port, isci_device); - spin_unlock_irqrestore(&isci_port->remote_device_lock, flags); + spin_unlock_irq(&isci_host->scic_lock); dev_dbg(&isci_host->pdev->dev, "%s: isci_device = %p\n", @@ -487,12 +483,12 @@ int isci_remote_device_found(struct domain_device *domain_dev) if (status != SCI_SUCCESS) { - spin_lock_irqsave(&isci_port->remote_device_lock, flags); + spin_lock_irq(&isci_host->scic_lock); isci_remote_device_deconstruct( isci_host, isci_device ); - spin_unlock_irqrestore(&isci_port->remote_device_lock, flags); + spin_unlock_irq(&isci_host->scic_lock); return -ENODEV; } -- cgit v1.2.3-70-g09d2 From 09d7da135b34bc74a7996b5db373521557ddf3d4 Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Sat, 26 Mar 2011 16:11:51 -0700 Subject: isci: Remove event_* calls as they are just wrappers Removed isci_event_* calls and call those functions directly. Reported-by: Christoph Hellwig Signed-off-by: Dave Jiang Signed-off-by: Dan Williams --- drivers/scsi/isci/Makefile | 2 +- drivers/scsi/isci/core/scic_sds_controller.c | 400 +++++++------- drivers/scsi/isci/core/scic_sds_controller.h | 3 +- drivers/scsi/isci/core/scic_sds_phy.c | 201 ++++--- drivers/scsi/isci/core/scic_sds_port.c | 444 ++++++++------- .../isci/core/scic_sds_port_configuration_agent.c | 97 ++-- drivers/scsi/isci/core/scic_sds_remote_device.c | 142 +++-- drivers/scsi/isci/core/scic_sds_request.c | 36 +- .../scsi/isci/core/scic_sds_smp_remote_device.c | 42 +- .../scsi/isci/core/scic_sds_stp_remote_device.c | 74 ++- drivers/scsi/isci/events.c | 609 --------------------- drivers/scsi/isci/events.h | 373 ------------- drivers/scsi/isci/isci.h | 1 - drivers/scsi/isci/port.c | 51 +- drivers/scsi/isci/port.h | 10 + 15 files changed, 734 insertions(+), 1751 deletions(-) delete mode 100644 drivers/scsi/isci/events.c delete mode 100644 drivers/scsi/isci/events.h (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/Makefile b/drivers/scsi/isci/Makefile index 1252d768c42..a65c0ae9d2c 100644 --- a/drivers/scsi/isci/Makefile +++ b/drivers/scsi/isci/Makefile @@ -9,7 +9,7 @@ EXTRA_CFLAGS += -Idrivers/scsi/isci/core/ -Idrivers/scsi/isci/ obj-$(CONFIG_SCSI_ISCI) += isci.o isci-objs := init.o phy.o request.o sata.o \ remote_device.o port.o timers.o \ - host.o task.o events.o probe_roms.o \ + host.o task.o probe_roms.o \ core/scic_sds_controller.o \ core/scic_sds_remote_device.o \ core/scic_sds_request.o \ diff --git a/drivers/scsi/isci/core/scic_sds_controller.c b/drivers/scsi/isci/core/scic_sds_controller.c index cd31cba28f8..eaaa4cc89a8 100644 --- a/drivers/scsi/isci/core/scic_sds_controller.c +++ b/drivers/scsi/isci/core/scic_sds_controller.c @@ -253,19 +253,19 @@ static void scic_sds_controller_phy_startup_timeout_handler( * This method initializes the phy startup operations for controller start. */ enum sci_status scic_sds_controller_initialize_phy_startup( - struct scic_sds_controller *this_controller) + struct scic_sds_controller *scic) { - this_controller->phy_startup_timer = isci_event_timer_create( - this_controller, - scic_sds_controller_phy_startup_timeout_handler, - this_controller - ); + struct isci_host *ihost = sci_object_get_association(scic); - if (this_controller->phy_startup_timer == NULL) { + scic->phy_startup_timer = isci_timer_create(ihost, + scic, + scic_sds_controller_phy_startup_timeout_handler); + + if (scic->phy_startup_timer == NULL) return SCI_FAILURE_INSUFFICIENT_RESOURCES; - } else { - this_controller->next_phy_to_start = 0; - this_controller->phy_startup_timer_pending = false; + else { + scic->next_phy_to_start = 0; + scic->phy_startup_timer_pending = false; } return SCI_SUCCESS; @@ -278,22 +278,20 @@ enum sci_status scic_sds_controller_initialize_phy_startup( * object. */ void scic_sds_controller_initialize_power_control( - struct scic_sds_controller *this_controller) + struct scic_sds_controller *scic) { - this_controller->power_control.timer = isci_event_timer_create( - this_controller, - scic_sds_controller_power_control_timer_handler, - this_controller - ); + struct isci_host *ihost = sci_object_get_association(scic); + scic->power_control.timer = isci_timer_create( + ihost, + scic, + scic_sds_controller_power_control_timer_handler); - memset( - this_controller->power_control.requesters, - 0, - sizeof(this_controller->power_control.requesters) - ); + memset(scic->power_control.requesters, + 0, + sizeof(scic->power_control.requesters)); - this_controller->power_control.phys_waiting = 0; - this_controller->power_control.phys_granted_power = 0; + scic->power_control.phys_waiting = 0; + scic->power_control.phys_granted_power = 0; } /* --------------------------------------------------------------------------- */ @@ -730,30 +728,29 @@ void scic_sds_controller_afe_initialization(struct scic_sds_controller *scic) * none. */ static void scic_sds_controller_transition_to_ready( - struct scic_sds_controller *this_controller, + struct scic_sds_controller *scic, enum sci_status status) { - if (this_controller->parent.state_machine.current_state_id - == SCI_BASE_CONTROLLER_STATE_STARTING) { + struct isci_host *ihost = sci_object_get_association(scic); + + if (scic->parent.state_machine.current_state_id == + SCI_BASE_CONTROLLER_STATE_STARTING) { /* * We move into the ready state, because some of the phys/ports - * may be up and operational. */ + * may be up and operational. + */ sci_base_state_machine_change_state( - scic_sds_controller_get_base_state_machine(this_controller), - SCI_BASE_CONTROLLER_STATE_READY - ); + scic_sds_controller_get_base_state_machine(scic), + SCI_BASE_CONTROLLER_STATE_READY); - isci_event_controller_start_complete(this_controller, status); + isci_host_start_complete(ihost, status); } } -/** - * This method is the general timeout handler for the controller. It will take - * the correct timetout action based on the current controller state - */ -void scic_sds_controller_timeout_handler( - struct scic_sds_controller *scic) +void scic_sds_controller_timeout_handler(void *_scic) { + struct scic_sds_controller *scic = _scic; + struct isci_host *ihost = sci_object_get_association(scic); enum sci_base_controller_states current_state; current_state = sci_base_state_machine_get_state( @@ -766,7 +763,7 @@ void scic_sds_controller_timeout_handler( sci_base_state_machine_change_state( scic_sds_controller_get_base_state_machine(scic), SCI_BASE_CONTROLLER_STATE_FAILED); - isci_event_controller_stop_complete(scic, SCI_FAILURE_TIMEOUT); + isci_host_stop_complete(ihost, SCI_FAILURE_TIMEOUT); } else /* / @todo Now what do we want to do in this case? */ dev_err(scic_to_dev(scic), "%s: Controller timer fired when controller was not " @@ -803,37 +800,21 @@ enum sci_status scic_sds_controller_stop_ports(struct scic_sds_controller *scic) return status; } -/** - * - * - * - */ -static void scic_sds_controller_phy_timer_start( - struct scic_sds_controller *this_controller) +static inline void scic_sds_controller_phy_timer_start( + struct scic_sds_controller *scic) { - isci_event_timer_start( - this_controller, - this_controller->phy_startup_timer, - SCIC_SDS_CONTROLLER_PHY_START_TIMEOUT - ); + isci_timer_start(scic->phy_startup_timer, + SCIC_SDS_CONTROLLER_PHY_START_TIMEOUT); - this_controller->phy_startup_timer_pending = true; + scic->phy_startup_timer_pending = true; } -/** - * - * - * - */ -void scic_sds_controller_phy_timer_stop( - struct scic_sds_controller *this_controller) +inline void scic_sds_controller_phy_timer_stop( + struct scic_sds_controller *scic) { - isci_event_timer_stop( - this_controller, - this_controller->phy_startup_timer - ); + isci_timer_stop(scic->phy_startup_timer); - this_controller->phy_startup_timer_pending = false; + scic->phy_startup_timer_pending = false; } /** @@ -1009,19 +990,17 @@ enum sci_status scic_sds_controller_stop_devices( * ****************************************************************************- */ /** + * This function starts the power control timer for this controller object. * - * - * This method starts the power control timer for this controller object. + * @param scic */ -static void scic_sds_controller_power_control_timer_start( - struct scic_sds_controller *this_controller) +static inline void scic_sds_controller_power_control_timer_start( + struct scic_sds_controller *scic) { - isci_event_timer_start( - this_controller, this_controller->power_control.timer, - SCIC_SDS_CONTROLLER_POWER_CONTROL_INTERVAL - ); + isci_timer_start(scic->power_control.timer, + SCIC_SDS_CONTROLLER_POWER_CONTROL_INTERVAL); - this_controller->power_control.timer_started = true; + scic->power_control.timer_started = true; } /** @@ -1029,20 +1008,22 @@ static void scic_sds_controller_power_control_timer_start( * * @param scic */ -void scic_sds_controller_power_control_timer_stop(struct scic_sds_controller *scic) +static inline void scic_sds_controller_power_control_timer_stop( + struct scic_sds_controller *scic) { if (scic->power_control.timer_started) { - isci_event_timer_stop(scic, scic->power_control.timer); + isci_timer_stop(scic->power_control.timer); scic->power_control.timer_started = false; } } /** - * This method stops and starts the power control timer for this controller object. + * This method stops and starts the power control timer for this controller + * object. * * @param scic */ -void scic_sds_controller_power_control_timer_restart( +static inline void scic_sds_controller_power_control_timer_restart( struct scic_sds_controller *scic) { scic_sds_controller_power_control_timer_stop(scic); @@ -2893,51 +2874,41 @@ static enum sci_status scic_sds_controller_general_reset_handler( * * RESET STATE HANDLERS * ***************************************************************************** */ -/** - * - * @controller: This is the struct sci_base_controller object which is cast into a - * struct scic_sds_controller object. - * - * This method is the struct scic_sds_controller initialize handler for the reset - * state. - Currently this function does nothing enum sci_status SCI_FAILURE This - * function is not yet implemented and is a valid request from the reset state. - */ -static enum sci_status scic_sds_controller_reset_state_initialize_handler( - struct sci_base_controller *controller) +static enum sci_status scic_sds_controller_reset_state_initialize_handler(struct sci_base_controller *base_scic) { - u32 index; enum sci_status result = SCI_SUCCESS; - struct scic_sds_controller *this_controller; + struct scic_sds_controller *scic; + struct isci_host *ihost; + u32 index; - this_controller = (struct scic_sds_controller *)controller; + scic = container_of(base_scic, typeof(*scic), parent); + ihost = sci_object_get_association(scic); sci_base_state_machine_change_state( - scic_sds_controller_get_base_state_machine(this_controller), - SCI_BASE_CONTROLLER_STATE_INITIALIZING - ); + scic_sds_controller_get_base_state_machine(scic), + SCI_BASE_CONTROLLER_STATE_INITIALIZING); - this_controller->timeout_timer = isci_event_timer_create( - this_controller, - (void (*)(void *))scic_sds_controller_timeout_handler, - (void (*)(void *))controller); + scic->timeout_timer = isci_timer_create(ihost, + scic, + scic_sds_controller_timeout_handler); - scic_sds_controller_initialize_phy_startup(this_controller); + scic_sds_controller_initialize_phy_startup(scic); - scic_sds_controller_initialize_power_control(this_controller); + scic_sds_controller_initialize_power_control(scic); /* * There is nothing to do here for B0 since we do not have to * program the AFE registers. * / @todo The AFE settings are supposed to be correct for the B0 but * / presently they seem to be wrong. */ - scic_sds_controller_afe_initialization(this_controller); + scic_sds_controller_afe_initialization(scic); - if (SCI_SUCCESS == result) { + if (result == SCI_SUCCESS) { u32 status; u32 terminate_loop; /* Take the hardware out of reset */ - SMU_SMUSRCR_WRITE(this_controller, 0x00000000); + SMU_SMUSRCR_WRITE(scic, 0x00000000); /* * / @todo Provide meaningfull error code for hardware failure @@ -2948,11 +2919,11 @@ static enum sci_status scic_sds_controller_reset_state_initialize_handler( while (terminate_loop-- && (result != SCI_SUCCESS)) { /* Loop until the hardware reports success */ udelay(SCU_CONTEXT_RAM_INIT_STALL_TIME); - status = SMU_SMUCSR_READ(this_controller); + status = SMU_SMUCSR_READ(scic); - if ((status & SCU_RAM_INIT_COMPLETED) == SCU_RAM_INIT_COMPLETED) { + if ((status & SCU_RAM_INIT_COMPLETED) == + SCU_RAM_INIT_COMPLETED) result = SCI_SUCCESS; - } } } @@ -2965,39 +2936,42 @@ static enum sci_status scic_sds_controller_reset_state_initialize_handler( /* * Determine what are the actaul device capacities that the * hardware will support */ - device_context_capacity = SMU_DCC_READ(this_controller); + device_context_capacity = SMU_DCC_READ(scic); - max_supported_ports = - smu_dcc_get_max_ports(device_context_capacity); - max_supported_devices = - smu_dcc_get_max_remote_node_context(device_context_capacity); - max_supported_io_requests = - smu_dcc_get_max_task_context(device_context_capacity); + max_supported_ports = smu_dcc_get_max_ports(device_context_capacity); + max_supported_devices = smu_dcc_get_max_remote_node_context(device_context_capacity); + max_supported_io_requests = smu_dcc_get_max_task_context(device_context_capacity); - /* Make all PEs that are unassigned match up with the logical ports */ + /* + * Make all PEs that are unassigned match up with the + * logical ports + */ for (index = 0; index < max_supported_ports; index++) { - scu_register_write( - this_controller, - this_controller->scu_registers->peg0.ptsg.protocol_engine[index], - index - ); + struct scu_port_task_scheduler_group_registers *ptsg = + &scic->scu_registers->peg0.ptsg; + + scu_register_write(scic, + ptsg->protocol_engine[index], + index); } /* Record the smaller of the two capacity values */ - this_controller->logical_port_entries = - min(max_supported_ports, this_controller->logical_port_entries); + scic->logical_port_entries = + min(max_supported_ports, scic->logical_port_entries); - this_controller->task_context_entries = - min(max_supported_io_requests, this_controller->task_context_entries); + scic->task_context_entries = + min(max_supported_io_requests, + scic->task_context_entries); - this_controller->remote_node_entries = - min(max_supported_devices, this_controller->remote_node_entries); + scic->remote_node_entries = + min(max_supported_devices, scic->remote_node_entries); /* * Now that we have the correct hardware reported minimum values * build the MDL for the controller. Default to a performance - * configuration. */ - scic_controller_set_mode(this_controller, SCI_MODE_SPEED); + * configuration. + */ + scic_controller_set_mode(scic, SCI_MODE_SPEED); } /* Initialize hardware PCI Relaxed ordering in DMA engines */ @@ -3005,66 +2979,62 @@ static enum sci_status scic_sds_controller_reset_state_initialize_handler( u32 dma_configuration; /* Configure the payload DMA */ - dma_configuration = SCU_PDMACR_READ(this_controller); - dma_configuration |= SCU_PDMACR_GEN_BIT(PCI_RELAXED_ORDERING_ENABLE); - SCU_PDMACR_WRITE(this_controller, dma_configuration); + dma_configuration = SCU_PDMACR_READ(scic); + dma_configuration |= + SCU_PDMACR_GEN_BIT(PCI_RELAXED_ORDERING_ENABLE); + SCU_PDMACR_WRITE(scic, dma_configuration); /* Configure the control DMA */ - dma_configuration = SCU_CDMACR_READ(this_controller); - dma_configuration |= SCU_CDMACR_GEN_BIT(PCI_RELAXED_ORDERING_ENABLE); - SCU_CDMACR_WRITE(this_controller, dma_configuration); + dma_configuration = SCU_CDMACR_READ(scic); + dma_configuration |= + SCU_CDMACR_GEN_BIT(PCI_RELAXED_ORDERING_ENABLE); + SCU_CDMACR_WRITE(scic, dma_configuration); } /* * Initialize the PHYs before the PORTs because the PHY registers - * are accessed during the port initialization. */ + * are accessed during the port initialization. + */ if (result == SCI_SUCCESS) { /* Initialize the phys */ for (index = 0; (result == SCI_SUCCESS) && (index < SCI_MAX_PHYS); index++) { result = scic_sds_phy_initialize( - &this_controller->phy_table[index], - &this_controller->scu_registers->peg0.pe[index].tl, - &this_controller->scu_registers->peg0.pe[index].ll - ); + &scic->phy_table[index], + &scic->scu_registers->peg0.pe[index].tl, + &scic->scu_registers->peg0.pe[index].ll); } } if (result == SCI_SUCCESS) { /* Initialize the logical ports */ for (index = 0; - (index < this_controller->logical_port_entries) - && (result == SCI_SUCCESS); + (index < scic->logical_port_entries) && + (result == SCI_SUCCESS); index++) { result = scic_sds_port_initialize( - &this_controller->port_table[index], - &this_controller->scu_registers->peg0.ptsg.port[index], - &this_controller->scu_registers->peg0.ptsg.protocol_engine, - &this_controller->scu_registers->peg0.viit[index] - ); + &scic->port_table[index], + &scic->scu_registers->peg0.ptsg.port[index], + &scic->scu_registers->peg0.ptsg.protocol_engine, + &scic->scu_registers->peg0.viit[index]); } } - if (SCI_SUCCESS == result) { + if (result == SCI_SUCCESS) result = scic_sds_port_configuration_agent_initialize( - this_controller, - &this_controller->port_agent - ); - } + scic, + &scic->port_agent); /* Advance the controller state machine */ - if (result == SCI_SUCCESS) { + if (result == SCI_SUCCESS) sci_base_state_machine_change_state( - scic_sds_controller_get_base_state_machine(this_controller), - SCI_BASE_CONTROLLER_STATE_INITIALIZED - ); - } else { + scic_sds_controller_get_base_state_machine(scic), + SCI_BASE_CONTROLLER_STATE_INITIALIZED); + else sci_base_state_machine_change_state( - scic_sds_controller_get_base_state_machine(this_controller), - SCI_BASE_CONTROLLER_STATE_FAILED - ); - } + scic_sds_controller_get_base_state_machine(scic), + SCI_BASE_CONTROLLER_STATE_FAILED); return result; } @@ -3076,13 +3046,14 @@ static enum sci_status scic_sds_controller_reset_state_initialize_handler( /** * - * @controller: This is the struct sci_base_controller object which is cast into a - * struct scic_sds_controller object. + * @controller: This is the struct sci_base_controller object which is cast + * into a struct scic_sds_controller object. * @timeout: This is the allowed time for the controller object to reach the * started state. * - * This method is the struct scic_sds_controller start handler for the initialized - * state. - Validate we have a good memory descriptor table - Initialze the + * This function is the struct scic_sds_controller start handler for the + * initialized state. + * - Validate we have a good memory descriptor table - Initialze the * physical memory before programming the hardware - Program the SCU hardware * with the physical memory addresses passed in the memory descriptor table. - * Initialzie the TCi pool - Initialize the RNi pool - Initialize the @@ -3099,70 +3070,74 @@ static enum sci_status scic_sds_controller_initialized_state_start_handler( { u16 index; enum sci_status result; - struct scic_sds_controller *this_controller; + struct scic_sds_controller *scic; - this_controller = (struct scic_sds_controller *)controller; + scic = (struct scic_sds_controller *)controller; - /* Make sure that the SCI User filled in the memory descriptor table correctly */ - result = scic_sds_controller_validate_memory_descriptor_table(this_controller); + /* + * Make sure that the SCI User filled in the memory descriptor + * table correctly + */ + result = scic_sds_controller_validate_memory_descriptor_table(scic); if (result == SCI_SUCCESS) { - /* The memory descriptor list looks good so program the hardware */ - scic_sds_controller_ram_initialization(this_controller); + /* + * The memory descriptor list looks good so program the + * hardware + */ + scic_sds_controller_ram_initialization(scic); } if (result == SCI_SUCCESS) { /* Build the TCi free pool */ - sci_pool_initialize(this_controller->tci_pool); - for (index = 0; index < this_controller->task_context_entries; index++) { - sci_pool_put(this_controller->tci_pool, index); - } + sci_pool_initialize(scic->tci_pool); + for (index = 0; index < scic->task_context_entries; index++) + sci_pool_put(scic->tci_pool, index); /* Build the RNi free pool */ scic_sds_remote_node_table_initialize( - &this_controller->available_remote_nodes, - this_controller->remote_node_entries - ); + &scic->available_remote_nodes, + scic->remote_node_entries); } if (result == SCI_SUCCESS) { /* - * Before anything else lets make sure we will not be interrupted - * by the hardware. */ - scic_controller_disable_interrupts(this_controller); + * Before anything else lets make sure we will not be + * interrupted by the hardware. + */ + scic_controller_disable_interrupts(scic); /* Enable the port task scheduler */ - scic_sds_controller_enable_port_task_scheduler(this_controller); + scic_sds_controller_enable_port_task_scheduler(scic); - /* Assign all the task entries to this controller physical function */ - scic_sds_controller_assign_task_entries(this_controller); + /* Assign all the task entries to scic physical function */ + scic_sds_controller_assign_task_entries(scic); /* Now initialze the completion queue */ - scic_sds_controller_initialize_completion_queue(this_controller); + scic_sds_controller_initialize_completion_queue(scic); /* Initialize the unsolicited frame queue for use */ - scic_sds_controller_initialize_unsolicited_frame_queue(this_controller); + scic_sds_controller_initialize_unsolicited_frame_queue(scic); } /* Start all of the ports on this controller */ - for (index = 0; index < this_controller->logical_port_entries && - result == SCI_SUCCESS; index++) { - struct scic_sds_port *sci_port = &this_controller->port_table[index]; + for (index = 0; + (index < scic->logical_port_entries) && (result == SCI_SUCCESS); + index++) { + struct scic_sds_port *sci_port = &scic->port_table[index]; - result = sci_port->state_handlers->parent.start_handler(&sci_port->parent); + result = sci_port->state_handlers->parent.start_handler( + &sci_port->parent); } if (result == SCI_SUCCESS) { - scic_sds_controller_start_next_phy(this_controller); + scic_sds_controller_start_next_phy(scic); - isci_event_timer_start(this_controller, - this_controller->timeout_timer, - timeout); + isci_timer_start(scic->timeout_timer, timeout); sci_base_state_machine_change_state( - scic_sds_controller_get_base_state_machine(this_controller), - SCI_BASE_CONTROLLER_STATE_STARTING - ); + scic_sds_controller_get_base_state_machine(scic), + SCI_BASE_CONTROLLER_STATE_STARTING); } return result; @@ -3241,18 +3216,14 @@ static enum sci_status scic_sds_controller_ready_state_stop_handler( struct sci_base_controller *controller, u32 timeout) { - struct scic_sds_controller *this_controller; - - this_controller = (struct scic_sds_controller *)controller; + struct scic_sds_controller *scic = + (struct scic_sds_controller *)controller; - isci_event_timer_start(this_controller, - this_controller->timeout_timer, - timeout); + isci_timer_start(scic->timeout_timer, timeout); sci_base_state_machine_change_state( - scic_sds_controller_get_base_state_machine(this_controller), - SCI_BASE_CONTROLLER_STATE_STOPPING - ); + scic_sds_controller_get_base_state_machine(scic), + SCI_BASE_CONTROLLER_STATE_STOPPING); return SCI_SUCCESS; } @@ -3689,12 +3660,12 @@ static void scic_sds_controller_initial_state_enter( * from the SCI_BASE_CONTROLLER_STATE_STARTING. - This function stops the * controller starting timeout timer. none */ -static void scic_sds_controller_starting_state_exit( +static inline void scic_sds_controller_starting_state_exit( struct sci_base_object *object) { struct scic_sds_controller *scic = (struct scic_sds_controller *)object; - isci_event_timer_stop(scic, scic->timeout_timer); + isci_timer_stop(scic->timeout_timer); } /** @@ -3762,21 +3733,20 @@ static void scic_sds_controller_stopping_state_enter( /** * - * @object: This is the struct sci_base_object which is cast to a struct scic_sds_controller - * object. + * @object: This is the struct sci_base_object which is cast to a struct + * scic_sds_controller object. * - * This method implements the actions taken by the struct scic_sds_controller on exit - * from the SCI_BASE_CONTROLLER_STATE_STOPPING. - This function stops the - * controller stopping timeout timer. none + * This funciton implements the actions taken by the struct scic_sds_controller + * on exit from the SCI_BASE_CONTROLLER_STATE_STOPPING. - + * This function stops the controller stopping timeout timer. */ -static void scic_sds_controller_stopping_state_exit( +static inline void scic_sds_controller_stopping_state_exit( struct sci_base_object *object) { - struct scic_sds_controller *this_controller; - - this_controller = (struct scic_sds_controller *)object; + struct scic_sds_controller *scic = + (struct scic_sds_controller *)object; - isci_event_timer_stop(this_controller, this_controller->timeout_timer); + isci_timer_stop(scic->timeout_timer); } /** diff --git a/drivers/scsi/isci/core/scic_sds_controller.h b/drivers/scsi/isci/core/scic_sds_controller.h index 6386a64896c..f426324bf3a 100644 --- a/drivers/scsi/isci/core/scic_sds_controller.h +++ b/drivers/scsi/isci/core/scic_sds_controller.h @@ -681,8 +681,7 @@ void scic_sds_controller_copy_task_context( struct scic_sds_controller *this_controller, struct scic_sds_request *this_request); -void scic_sds_controller_timeout_handler( - struct scic_sds_controller *controller); +void scic_sds_controller_timeout_handler(void *controller); void scic_sds_controller_initialize_power_control( struct scic_sds_controller *this_controller); diff --git a/drivers/scsi/isci/core/scic_sds_phy.c b/drivers/scsi/isci/core/scic_sds_phy.c index 27174589a86..225e67a9e7b 100644 --- a/drivers/scsi/isci/core/scic_sds_phy.c +++ b/drivers/scsi/isci/core/scic_sds_phy.c @@ -366,18 +366,23 @@ void scic_sds_phy_set_port( */ enum sci_status scic_sds_phy_initialize( struct scic_sds_phy *sci_phy, - struct scu_transport_layer_registers __iomem *transport_layer_registers, - struct scu_link_layer_registers __iomem *link_layer_registers) + struct scu_transport_layer_registers __iomem *transport_layer_registers, + struct scu_link_layer_registers __iomem *link_layer_registers) { + struct scic_sds_controller *scic = scic_sds_phy_get_controller(sci_phy); + struct isci_host *ihost = sci_object_get_association(scic); + /* Create the SIGNATURE FIS Timeout timer for this phy */ - sci_phy->sata_timeout_timer = isci_event_timer_create( - scic_sds_phy_get_controller(sci_phy), - scic_sds_phy_sata_timeout, - sci_phy - ); + sci_phy->sata_timeout_timer = + isci_timer_create( + ihost, + sci_phy, + scic_sds_phy_sata_timeout); /* Perfrom the initialization of the TL hardware */ - scic_sds_phy_transport_layer_initialization(sci_phy, transport_layer_registers); + scic_sds_phy_transport_layer_initialization( + sci_phy, + transport_layer_registers); /* Perofrm the initialization of the PE hardware */ scic_sds_phy_link_layer_initialization(sci_phy, link_layer_registers); @@ -387,8 +392,7 @@ enum sci_status scic_sds_phy_initialize( * transition to the stopped state. */ sci_base_state_machine_change_state( scic_sds_phy_get_base_state_machine(sci_phy), - SCI_BASE_PHY_STATE_STOPPED - ); + SCI_BASE_PHY_STATE_STOPPED); return SCI_SUCCESS; } @@ -1742,49 +1746,42 @@ static void scic_sds_phy_starting_await_sata_power_substate_exit( /** * - * @object: This is the struct sci_base_object which is cast to a struct scic_sds_phy object. + * @object: This is the struct sci_base_object which is cast to a + * struct scic_sds_phy object. * - * This method will perform the actions required by the struct scic_sds_phy on + * This function will perform the actions required by the struct scic_sds_phy on * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN. - Set the * struct scic_sds_phy object state handlers for this state. none */ static void scic_sds_phy_starting_await_sata_phy_substate_enter( struct sci_base_object *object) { - struct scic_sds_phy *this_phy; - - this_phy = (struct scic_sds_phy *)object; + struct scic_sds_phy *sci_phy = (struct scic_sds_phy *)object; scic_sds_phy_set_starting_substate_handlers( - this_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN - ); + sci_phy, + SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN); - isci_event_timer_start( - scic_sds_phy_get_controller(this_phy), - this_phy->sata_timeout_timer, - SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT - ); + isci_timer_start(sci_phy->sata_timeout_timer, + SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT); } /** * - * @object: This is the struct sci_base_object which is cast to a struct scic_sds_phy object. + * @object: This is the struct sci_base_object which is cast to a + * struct scic_sds_phy object. * - * This method will perform the actions required by the struct scic_sds_phy on exiting + * This method will perform the actions required by the struct scic_sds_phy + * on exiting * the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN. - stop the timer * that was started on entry to await sata phy event notification none */ -static void scic_sds_phy_starting_await_sata_phy_substate_exit( +static inline void scic_sds_phy_starting_await_sata_phy_substate_exit( struct sci_base_object *object) { - struct scic_sds_phy *this_phy; + struct scic_sds_phy *sci_phy = (struct scic_sds_phy *)object; - this_phy = (struct scic_sds_phy *)object; - - isci_event_timer_stop( - scic_sds_phy_get_controller(this_phy), - this_phy->sata_timeout_timer - ); + isci_timer_stop(sci_phy->sata_timeout_timer); } /** @@ -1798,104 +1795,92 @@ static void scic_sds_phy_starting_await_sata_phy_substate_exit( static void scic_sds_phy_starting_await_sata_speed_substate_enter( struct sci_base_object *object) { - struct scic_sds_phy *this_phy; - - this_phy = (struct scic_sds_phy *)object; + struct scic_sds_phy *sci_phy = (struct scic_sds_phy *)object; scic_sds_phy_set_starting_substate_handlers( - this_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN - ); + sci_phy, + SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN); - isci_event_timer_start( - scic_sds_phy_get_controller(this_phy), - this_phy->sata_timeout_timer, - SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT - ); + isci_timer_start(sci_phy->sata_timeout_timer, + SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT); } /** * - * @object: This is the struct sci_base_object which is cast to a struct scic_sds_phy object. + * @object: This is the struct sci_base_object which is cast to a + * struct scic_sds_phy object. * - * This method will perform the actions required by the struct scic_sds_phy on exiting + * This function will perform the actions required by the + * struct scic_sds_phy on exiting * the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN. - stop the timer * that was started on entry to await sata phy event notification none */ -static void scic_sds_phy_starting_await_sata_speed_substate_exit( +static inline void scic_sds_phy_starting_await_sata_speed_substate_exit( struct sci_base_object *object) { - struct scic_sds_phy *this_phy; + struct scic_sds_phy *sci_phy = (struct scic_sds_phy *)object; - this_phy = (struct scic_sds_phy *)object; - - isci_event_timer_stop( - scic_sds_phy_get_controller(this_phy), - this_phy->sata_timeout_timer - ); + isci_timer_stop(sci_phy->sata_timeout_timer); } /** * - * @object: This is the struct sci_base_object which is cast to a struct scic_sds_phy object. + * @object: This is the struct sci_base_object which is cast to a + * struct scic_sds_phy object. * - * This method will perform the actions required by the struct scic_sds_phy on + * This function will perform the actions required by the struct scic_sds_phy on * entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF. - Set the - * struct scic_sds_phy object state handlers for this state. - Start the SIGNATURE FIS + * struct scic_sds_phy object state handlers for this state. + * - Start the SIGNATURE FIS * timeout timer none */ static void scic_sds_phy_starting_await_sig_fis_uf_substate_enter( struct sci_base_object *object) { bool continue_to_ready_state; - struct scic_sds_phy *this_phy; - - this_phy = (struct scic_sds_phy *)object; + struct scic_sds_phy *sci_phy = (struct scic_sds_phy *)object; scic_sds_phy_set_starting_substate_handlers( - this_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF - ); + sci_phy, + SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF); continue_to_ready_state = scic_sds_port_link_detected( - this_phy->owning_port, - this_phy - ); + sci_phy->owning_port, + sci_phy); if (continue_to_ready_state) { /* - * Clear the PE suspend condition so we can actually receive SIG FIS - * The hardware will not respond to the XRDY until the PE suspend - * condition is cleared. */ - scic_sds_phy_resume(this_phy); + * Clear the PE suspend condition so we can actually + * receive SIG FIS + * The hardware will not respond to the XRDY until the PE + * suspend condition is cleared. + */ + scic_sds_phy_resume(sci_phy); - isci_event_timer_start( - scic_sds_phy_get_controller(this_phy), - this_phy->sata_timeout_timer, - SCIC_SDS_SIGNATURE_FIS_TIMEOUT - ); - } else { - this_phy->is_in_link_training = false; - } + isci_timer_start(sci_phy->sata_timeout_timer, + SCIC_SDS_SIGNATURE_FIS_TIMEOUT); + } else + sci_phy->is_in_link_training = false; } /** * - * @object: This is the struct sci_base_object which is cast to a struct scic_sds_phy object. + * @object: This is the struct sci_base_object which is cast to a + * struct scic_sds_phy object. * - * This method will perform the actions required by the struct scic_sds_phy on exiting + * This function will perform the actions required by the + * struct scic_sds_phy on exiting * the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF. - Stop the SIGNATURE * FIS timeout timer. none */ -static void scic_sds_phy_starting_await_sig_fis_uf_substate_exit( +static inline void scic_sds_phy_starting_await_sig_fis_uf_substate_exit( struct sci_base_object *object) { - struct scic_sds_phy *this_phy; + struct scic_sds_phy *sci_phy; - this_phy = (struct scic_sds_phy *)object; + sci_phy = (struct scic_sds_phy *)object; - isci_event_timer_stop( - scic_sds_phy_get_controller(this_phy), - this_phy->sata_timeout_timer - ); + isci_timer_stop(sci_phy->sata_timeout_timer); } /** @@ -2158,27 +2143,30 @@ enum sci_status scic_sds_phy_default_consume_power_handler( /** * - * @phy: This is the struct sci_base_phy object which is cast into a struct scic_sds_phy - * object. + * @phy: This is the struct sci_base_phy object which is cast into a + * struct scic_sds_phy object. * - * This method takes the struct scic_sds_phy from a stopped state and attempts to - * start it. - The phy state machine is transitioned to the + * This method takes the struct scic_sds_phy from a stopped state and + * attempts to start it. - The phy state machine is transitioned to the * SCI_BASE_PHY_STATE_STARTING. enum sci_status SCI_SUCCESS */ -static enum sci_status scic_sds_phy_stopped_state_start_handler(struct sci_base_phy *phy) +static enum sci_status scic_sds_phy_stopped_state_start_handler( + struct sci_base_phy *phy) { - struct scic_sds_phy *this_phy; - - this_phy = (struct scic_sds_phy *)phy; + struct scic_sds_phy *sci_phy = (struct scic_sds_phy *)phy; + struct scic_sds_controller *scic = scic_sds_phy_get_controller(sci_phy); + struct isci_host *ihost = sci_object_get_association(scic); /* Create the SIGNATURE FIS Timeout timer for this phy */ - this_phy->sata_timeout_timer = isci_event_timer_create( - scic_sds_phy_get_controller(this_phy), - scic_sds_phy_sata_timeout, this_phy); + sci_phy->sata_timeout_timer = + isci_timer_create( + ihost, + sci_phy, + scic_sds_phy_sata_timeout); - if (this_phy->sata_timeout_timer != NULL) { + if (sci_phy->sata_timeout_timer != NULL) { sci_base_state_machine_change_state( - scic_sds_phy_get_base_state_machine(this_phy), + scic_sds_phy_get_base_state_machine(sci_phy), SCI_BASE_PHY_STATE_STARTING); } @@ -2525,14 +2513,16 @@ static void scic_sds_phy_initial_state_enter( * @object: This is the struct sci_base_object which is cast to a * struct scic_sds_phy object. * - * This method will perform the actions required by the struct scic_sds_phy on + * This function will perform the actions required by the struct scic_sds_phy on * entering the SCI_BASE_PHY_STATE_INITIAL. - This function sets the state * handlers for the phy object base state machine initial state. - The SCU * hardware is requested to stop the protocol engine. none */ static void scic_sds_phy_stopped_state_enter(struct sci_base_object *object) { - struct scic_sds_phy *sci_phy; + struct scic_sds_phy *sci_phy = (struct scic_sds_phy *)object; + struct scic_sds_controller *scic = scic_sds_phy_get_controller(sci_phy); + struct isci_host *ihost = sci_object_get_association(scic); sci_phy = (struct scic_sds_phy *)object; @@ -2541,11 +2531,11 @@ static void scic_sds_phy_stopped_state_enter(struct sci_base_object *object) * reset state */ - scic_sds_phy_set_base_state_handlers(sci_phy, SCI_BASE_PHY_STATE_STOPPED); + scic_sds_phy_set_base_state_handlers(sci_phy, + SCI_BASE_PHY_STATE_STOPPED); if (sci_phy->sata_timeout_timer != NULL) { - isci_event_timer_destroy(scic_sds_phy_get_controller(sci_phy), - sci_phy->sata_timeout_timer); + isci_del_timer(ihost, sci_phy->sata_timeout_timer); sci_phy->sata_timeout_timer = NULL; } @@ -2554,9 +2544,10 @@ static void scic_sds_phy_stopped_state_enter(struct sci_base_object *object) if (sci_phy->parent.state_machine.previous_state_id != SCI_BASE_PHY_STATE_INITIAL) - scic_sds_controller_link_down(scic_sds_phy_get_controller(sci_phy), - scic_sds_phy_get_port(sci_phy), - sci_phy); + scic_sds_controller_link_down( + scic_sds_phy_get_controller(sci_phy), + scic_sds_phy_get_port(sci_phy), + sci_phy); } /** diff --git a/drivers/scsi/isci/core/scic_sds_port.c b/drivers/scsi/isci/core/scic_sds_port.c index a41fe426ac2..3ae0f0d80f1 100644 --- a/drivers/scsi/isci/core/scic_sds_port.c +++ b/drivers/scsi/isci/core/scic_sds_port.c @@ -738,34 +738,32 @@ void scic_sds_port_setup_transports( * @do_notify_user: This parameter specifies whether to inform the user (via * scic_cb_port_link_up()) as to the fact that a new phy as become ready. * - * This method will activate the phy in the port. Activation includes: - adding + * This function will activate the phy in the port. + * Activation includes: - adding * the phy to the port - enabling the Protocol Engine in the silicon. - * notifying the user that the link is up. none */ -void scic_sds_port_activate_phy( - struct scic_sds_port *this_port, - struct scic_sds_phy *the_phy, - bool do_notify_user) +void scic_sds_port_activate_phy(struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy, + bool do_notify_user) { - struct scic_sds_controller *controller; + struct scic_sds_controller *scic = + scic_sds_port_get_controller(sci_port); struct sci_sas_identify_address_frame_protocols protocols; + struct isci_host *ihost = sci_object_get_association(scic); - controller = scic_sds_port_get_controller(this_port); - scic_sds_phy_get_attached_phy_protocols(the_phy, &protocols); + scic_sds_phy_get_attached_phy_protocols(sci_phy, &protocols); /* If this is sata port then the phy has already been resumed */ - if (!protocols.u.bits.stp_target) { - scic_sds_phy_resume(the_phy); - } + if (!protocols.u.bits.stp_target) + scic_sds_phy_resume(sci_phy); - this_port->active_phy_mask |= 1 << the_phy->phy_index; + sci_port->active_phy_mask |= 1 << sci_phy->phy_index; - scic_sds_controller_clear_invalid_phy(controller, the_phy); + scic_sds_controller_clear_invalid_phy(scic, sci_phy); if (do_notify_user == true) - isci_event_port_link_up(this_port->owning_controller, - this_port, - the_phy); + isci_port_link_up(ihost, sci_port, sci_phy); } /** @@ -773,27 +771,30 @@ void scic_sds_port_activate_phy( * @this_port: This is the port on which the phy should be deactivated. * @the_phy: This is the specific phy that is no longer active in the port. * @do_notify_user: This parameter specifies whether to inform the user (via - * isci_event_port_link_down()) as to the fact that a new phy as become + * isci_port_link_down()) as to the fact that a new phy as become * ready. * - * This method will deactivate the supplied phy in the port. none + * This function will deactivate the supplied phy in the port. none */ -void scic_sds_port_deactivate_phy( - struct scic_sds_port *this_port, - struct scic_sds_phy *the_phy, - bool do_notify_user) +void scic_sds_port_deactivate_phy(struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy, + bool do_notify_user) { - this_port->active_phy_mask &= ~(1 << the_phy->phy_index); + struct scic_sds_controller *scic = + scic_sds_port_get_controller(sci_port); + struct isci_port *iport = sci_object_get_association(sci_port); + struct isci_host *ihost = sci_object_get_association(scic); + struct isci_phy *iphy = sci_object_get_association(sci_phy); + + sci_port->active_phy_mask &= ~(1 << sci_phy->phy_index); - the_phy->max_negotiated_speed = SCI_SAS_NO_LINK_RATE; + sci_phy->max_negotiated_speed = SCI_SAS_NO_LINK_RATE; /* Re-assign the phy back to the LP as if it were a narrow port */ - SCU_PCSPExCR_WRITE(this_port, the_phy->phy_index, the_phy->phy_index); + SCU_PCSPExCR_WRITE(sci_port, sci_phy->phy_index, sci_phy->phy_index); if (do_notify_user == true) - isci_event_port_link_down(this_port->owning_controller, - this_port, - the_phy); + isci_port_link_down(ihost, iphy, iport); } /** @@ -801,22 +802,24 @@ void scic_sds_port_deactivate_phy( * @this_port: This is the port on which the phy should be disabled. * @the_phy: This is the specific phy which to disabled. * - * This method will disable the phy and report that the phy is not valid for + * This function will disable the phy and report that the phy is not valid for * this port object. None */ static void scic_sds_port_invalid_link_up( - struct scic_sds_port *this_port, - struct scic_sds_phy *the_phy) + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) { - struct scic_sds_controller *controller = scic_sds_port_get_controller(this_port); + struct scic_sds_controller *scic = + scic_sds_port_get_controller(sci_port); /* - * Check to see if we have alreay reported this link as bad and if not go - * ahead and tell the SCI_USER that we have discovered an invalid link. */ - if ((controller->invalid_phy_mask & (1 << the_phy->phy_index)) == 0) { - scic_sds_controller_set_invalid_phy(controller, the_phy); - - isci_event_port_invalid_link_up(controller, this_port, the_phy); + * Check to see if we have alreay reported this link as bad and if + * not go ahead and tell the SCI_USER that we have discovered an + * invalid link. + */ + if ((scic->invalid_phy_mask & (1 << sci_phy->phy_index)) == 0) { + scic_sds_controller_set_invalid_phy(scic, sci_phy); + isci_port_invalid_link_up(scic, sci_port, sci_phy); } } @@ -950,44 +953,48 @@ enum sci_status scic_sds_port_complete_io( */ static void scic_sds_port_timeout_handler(void *port) { - struct scic_sds_port *this_port = port; + struct scic_sds_port *sci_port = port; u32 current_state; current_state = sci_base_state_machine_get_state( - &this_port->parent.state_machine); + &sci_port->parent.state_machine); if (current_state == SCI_BASE_PORT_STATE_RESETTING) { /* - * if the port is still in the resetting state then the timeout fired - * before the reset completed. */ + * if the port is still in the resetting state then the + * timeout fired before the reset completed. + */ sci_base_state_machine_change_state( - &this_port->parent.state_machine, - SCI_BASE_PORT_STATE_FAILED - ); + &sci_port->parent.state_machine, + SCI_BASE_PORT_STATE_FAILED); } else if (current_state == SCI_BASE_PORT_STATE_STOPPED) { /* * if the port is stopped then the start request failed - * In this case stay in the stopped state. */ - dev_err(sciport_to_dev(this_port), + * In this case stay in the stopped state. + */ + dev_err(sciport_to_dev(sci_port), "%s: SCIC Port 0x%p failed to stop before tiemout.\n", __func__, - this_port); + sci_port); } else if (current_state == SCI_BASE_PORT_STATE_STOPPING) { - /* if the port is still stopping then the stop has not completed */ - isci_event_port_stop_complete( - scic_sds_port_get_controller(this_port), - port, - SCI_FAILURE_TIMEOUT - ); + /* + * if the port is still stopping then the stop has not + * completed + */ + isci_port_stop_complete( + scic_sds_port_get_controller(sci_port), + sci_port, + SCI_FAILURE_TIMEOUT); } else { /* - * The port is in the ready state and we have a timer reporting a timeout - * this should not happen. */ - dev_err(sciport_to_dev(this_port), + * The port is in the ready state and we have a timer + * reporting a timeout this should not happen. + */ + dev_err(sciport_to_dev(sci_port), "%s: SCIC Port 0x%p is processing a timeout operation " "in state %d.\n", __func__, - this_port, + sci_port, current_state); } } @@ -1067,13 +1074,14 @@ enum sci_sas_link_rate scic_sds_port_get_max_allowed_speed( * */ void scic_sds_port_broadcast_change_received( - struct scic_sds_port *this_port, - struct scic_sds_phy *this_phy) + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) { + struct scic_sds_controller *scic = sci_port->owning_controller; + struct isci_host *ihost = sci_object_get_association(scic); + /* notify the user. */ - isci_event_port_bc_change_primitive_received( - this_port->owning_controller, this_port, this_phy - ); + isci_port_bc_change_received(ihost, sci_port, sci_phy); } @@ -1267,30 +1275,29 @@ static enum sci_status scic_sds_port_ready_waiting_substate_start_io_handler( * * This method will casue the port to reset. enum sci_status SCI_SUCCESS */ -static enum sci_status scic_sds_port_ready_operational_substate_reset_handler( - struct sci_base_port *port, - u32 timeout) +static enum +sci_status scic_sds_port_ready_operational_substate_reset_handler( + struct sci_base_port *port, + u32 timeout) { enum sci_status status = SCI_FAILURE_INVALID_PHY; u32 phy_index; - struct scic_sds_port *this_port = (struct scic_sds_port *)port; + struct scic_sds_port *sci_port = (struct scic_sds_port *)port; struct scic_sds_phy *selected_phy = NULL; /* Select a phy on which we can send the hard reset request. */ - for ( - phy_index = 0; - (phy_index < SCI_MAX_PHYS) - && (selected_phy == NULL); - phy_index++ - ) { - selected_phy = this_port->phy_table[phy_index]; - - if ( - (selected_phy != NULL) - && !scic_sds_port_active_phy(this_port, selected_phy) - ) { - /* We found a phy but it is not ready select different phy */ + for (phy_index = 0; + (phy_index < SCI_MAX_PHYS) && (selected_phy == NULL); + phy_index++) { + selected_phy = sci_port->phy_table[phy_index]; + + if ((selected_phy != NULL) && + !scic_sds_port_active_phy(sci_port, selected_phy)) { + /* + * We found a phy but it is not ready select + * different phy + */ selected_phy = NULL; } } @@ -1300,18 +1307,13 @@ static enum sci_status scic_sds_port_ready_operational_substate_reset_handler( status = scic_sds_phy_reset(selected_phy); if (status == SCI_SUCCESS) { - isci_event_timer_start( - scic_sds_port_get_controller(this_port), - this_port->timer_handle, - timeout - ); - - this_port->not_ready_reason = SCIC_PORT_NOT_READY_HARD_RESET_REQUESTED; + isci_timer_start(sci_port->timer_handle, timeout); + sci_port->not_ready_reason = + SCIC_PORT_NOT_READY_HARD_RESET_REQUESTED; sci_base_state_machine_change_state( - &this_port->parent.state_machine, - SCI_BASE_PORT_STATE_RESETTING - ); + &sci_port->parent.state_machine, + SCI_BASE_PORT_STATE_RESETTING); } } @@ -1686,10 +1688,11 @@ static void scic_sds_port_ready_substate_waiting_enter( /** * - * @object: This is the struct sci_base_object which is cast to a struct scic_sds_port object. + * @object: This is the struct sci_base_object which is cast to a + * struct scic_sds_port object. * - * This method will perform the actions required by the struct scic_sds_port on - * entering the SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL. This function sets + * This function will perform the actions required by the struct scic_sds_port + * on entering the SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL. This function sets * the state handlers for the port object, notifies the SCI User that the port * is ready, and resumes port operations. none */ @@ -1697,32 +1700,34 @@ static void scic_sds_port_ready_substate_operational_enter( struct sci_base_object *object) { u32 index; - struct scic_sds_port *this_port = (struct scic_sds_port *)object; + struct scic_sds_port *sci_port = (struct scic_sds_port *)object; + struct scic_sds_controller *scic = + scic_sds_port_get_controller(sci_port); + struct isci_host *ihost = sci_object_get_association(scic); + struct isci_port *iport = sci_object_get_association(sci_port); scic_sds_port_set_ready_state_handlers( - this_port, SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL - ); + sci_port, + SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL); - isci_event_port_ready( - scic_sds_port_get_controller(this_port), this_port - ); + isci_port_ready(ihost, iport); for (index = 0; index < SCI_MAX_PHYS; index++) { - if (this_port->phy_table[index] != NULL) { + if (sci_port->phy_table[index] != NULL) scic_sds_port_write_phy_assignment( - this_port, this_port->phy_table[index] - ); - } + sci_port, + sci_port->phy_table[index]); } - scic_sds_port_update_viit_entry(this_port); + scic_sds_port_update_viit_entry(sci_port); - scic_sds_port_resume_port_task_scheduler(this_port); + scic_sds_port_resume_port_task_scheduler(sci_port); - /* Post the dummy task for the port so the hardware can schedule + /* + * Post the dummy task for the port so the hardware can schedule * io correctly */ - scic_sds_port_post_dummy_request(this_port); + scic_sds_port_post_dummy_request(sci_port); } /** @@ -1736,20 +1741,20 @@ static void scic_sds_port_ready_substate_operational_enter( static void scic_sds_port_ready_substate_operational_exit( struct sci_base_object *object) { - struct scic_sds_port *this_port = (struct scic_sds_port *)object; + struct scic_sds_port *sci_port = (struct scic_sds_port *)object; + struct scic_sds_controller *scic = + scic_sds_port_get_controller(sci_port); + struct isci_host *ihost = sci_object_get_association(scic); + struct isci_port *iport = sci_object_get_association(sci_port); -/* - * Kill the dummy task for this port if it has not yet posted - * the hardware will treat this as a NOP and just return abort - * complete. - */ - scic_sds_port_abort_dummy_request(this_port); + /* + * Kill the dummy task for this port if it has not yet posted + * the hardware will treat this as a NOP and just return abort + * complete. + */ + scic_sds_port_abort_dummy_request(sci_port); - isci_event_port_not_ready( - scic_sds_port_get_controller(this_port), - this_port, - this_port->not_ready_reason - ); + isci_port_not_ready(ihost, iport); } /* @@ -1759,7 +1764,8 @@ static void scic_sds_port_ready_substate_operational_exit( /** * scic_sds_port_ready_substate_configuring_enter() - - * @object: This is the struct sci_base_object which is cast to a struct scic_sds_port object. + * @object: This is the struct sci_base_object which is cast to a + * struct scic_sds_port object. * * This method will perform the actions required by the struct scic_sds_port on * exiting the SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL. This function reports @@ -1768,29 +1774,26 @@ static void scic_sds_port_ready_substate_operational_exit( static void scic_sds_port_ready_substate_configuring_enter( struct sci_base_object *object) { - struct scic_sds_port *this_port = (struct scic_sds_port *)object; + struct scic_sds_port *sci_port = (struct scic_sds_port *)object; + struct scic_sds_controller *scic = + scic_sds_port_get_controller(sci_port); + struct isci_host *ihost = sci_object_get_association(scic); + struct isci_port *iport = sci_object_get_association(sci_port); scic_sds_port_set_ready_state_handlers( - this_port, SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING - ); + sci_port, + SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); - if (this_port->active_phy_mask == 0) { - isci_event_port_not_ready( - scic_sds_port_get_controller(this_port), - this_port, - SCIC_PORT_NOT_READY_NO_ACTIVE_PHYS - ); + if (sci_port->active_phy_mask == 0) { + isci_port_not_ready(ihost, iport); sci_base_state_machine_change_state( - &this_port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_WAITING - ); - } else if (this_port->started_request_count == 0) { + &sci_port->ready_substate_machine, + SCIC_SDS_PORT_READY_SUBSTATE_WAITING); + } else if (sci_port->started_request_count == 0) sci_base_state_machine_change_state( - &this_port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL - ); - } + &sci_port->ready_substate_machine, + SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL); } static void scic_sds_port_ready_substate_configuring_exit( @@ -2165,42 +2168,52 @@ static enum sci_status scic_sds_port_general_complete_io_handler( /** * scic_sds_port_stopped_state_start_handler() - stop a port from "started" * - * @port: This is the struct sci_base_port object which is cast into a struct scic_sds_port - * object. + * @port: This is the struct sci_base_port object which is cast into a + * struct scic_sds_port object. * - * This method takes the struct scic_sds_port from a stopped state and attempts to - * start it. To start a port it must have no assiged devices and it must have - * at least one phy assigned to it. If those conditions are met then the port - * can transition to the ready state. enum sci_status - * SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION This struct scic_sds_port object could - * not be started because the port configuration is not valid. SCI_SUCCESS the - * start request is successful and the struct scic_sds_port object has transitioned to - * the SCI_BASE_PORT_STATE_READY. + * This function takes the struct scic_sds_port from a stopped state and + * attempts to start it. To start a port it must have no assiged devices and + * it must have at least one phy assigned to it. If those conditions are + * met then the port can transition to the ready state. + * enum sci_status + * SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION + * This struct scic_sds_port object could not be started because the port + * configuration is not valid. + * SCI_SUCCESS + * the start request is successful and the struct scic_sds_port object + * has transitioned to the SCI_BASE_PORT_STATE_READY. */ -static enum sci_status scic_sds_port_stopped_state_start_handler(struct sci_base_port *base_port) +static enum sci_status +scic_sds_port_stopped_state_start_handler(struct sci_base_port *base_port) { - struct scic_sds_port *sci_port = container_of(base_port, typeof(*sci_port), parent); + struct scic_sds_port *sci_port = + container_of(base_port, typeof(*sci_port), parent); struct scic_sds_controller *scic = sci_port->owning_controller; + struct isci_host *ihost = sci_object_get_association(scic); enum sci_status status = SCI_SUCCESS; u32 phy_mask; if (sci_port->assigned_device_count > 0) { /* - * / @todo This is a start failure operation because there are still - * / devices assigned to this port. There must be no devices - * / assigned to a port on a start operation. */ + * @todo This is a start failure operation because + * there are still devices assigned to this port. + * There must be no devices assigned to a port on a + * start operation. + */ return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; } - sci_port->timer_handle = isci_event_timer_create(scic, - scic_sds_port_timeout_handler, - sci_port); + sci_port->timer_handle = + isci_timer_create(ihost, + sci_port, + scic_sds_port_timeout_handler); if (!sci_port->timer_handle) return SCI_FAILURE_INSUFFICIENT_RESOURCES; if (sci_port->reserved_rni == SCU_DUMMY_INDEX) { - u16 rni = scic_sds_remote_node_table_allocate_remote_node(&scic->available_remote_nodes, 1); + u16 rni = scic_sds_remote_node_table_allocate_remote_node( + &scic->available_remote_nodes, 1); if (rni != SCU_DUMMY_INDEX) scic_sds_port_construct_dummy_rnc(sci_port, rni); @@ -2715,50 +2728,41 @@ static void scic_sds_port_stopped_state_exit( /** * - * @object: This is the struct sci_base_object which is cast to a struct scic_sds_port object. + * @object: This is the struct sci_base_object which is cast to a + * struct scic_sds_port object. * * This method will perform the actions required by the struct scic_sds_port on * entering the SCI_BASE_PORT_STATE_READY. This function sets the ready state - * handlers for the struct scic_sds_port object, reports the port object as not ready - * and starts the ready substate machine. none + * handlers for the struct scic_sds_port object, reports the port object as + * not ready and starts the ready substate machine. none */ -static void scic_sds_port_ready_state_enter( - struct sci_base_object *object) +static void scic_sds_port_ready_state_enter(struct sci_base_object *object) { - struct scic_sds_port *this_port; + struct scic_sds_port *sci_port = (struct scic_sds_port *)object; + struct isci_port *iport = sci_object_get_association(sci_port); + struct scic_sds_controller *scic = + scic_sds_port_get_controller(sci_port); + struct isci_host *ihost = sci_object_get_association(scic); - this_port = (struct scic_sds_port *)object; + /* + * Put the ready state handlers in place though they will not be + * there long + */ + scic_sds_port_set_base_state_handlers(sci_port, + SCI_BASE_PORT_STATE_READY); - /* Put the ready state handlers in place though they will not be there long */ - scic_sds_port_set_base_state_handlers( - this_port, SCI_BASE_PORT_STATE_READY - ); - - if ( - SCI_BASE_PORT_STATE_RESETTING - == this_port->parent.state_machine.previous_state_id - ) { - isci_event_port_hard_reset_complete( - scic_sds_port_get_controller(this_port), - this_port, - SCI_SUCCESS - ); - } else { - /* Notify the caller that the port is not yet ready */ - isci_event_port_not_ready( - scic_sds_port_get_controller(this_port), - this_port, - SCIC_PORT_NOT_READY_NO_ACTIVE_PHYS - ); - } + if (sci_port->parent.state_machine.previous_state_id == + SCI_BASE_PORT_STATE_RESETTING) + isci_port_hard_reset_complete(iport, SCI_SUCCESS); + else /* Notify the caller that the port is not yet ready */ + isci_port_not_ready(ihost, iport); /* Post and suspend the dummy remote node context for this port. */ - scic_sds_port_post_dummy_remote_node(this_port); + scic_sds_port_post_dummy_remote_node(sci_port); /* Start the ready substate machine */ sci_base_state_machine_start( - scic_sds_port_get_ready_substate_machine(this_port) - ); + scic_sds_port_get_ready_substate_machine(sci_port)); } /** @@ -2802,22 +2806,19 @@ static void scic_sds_port_resetting_state_enter( /** * - * @object: This is the struct sci_base_object which is cast to a struct scic_sds_port object. + * @object: This is the struct sci_base_object which is cast to a + * struct scic_sds_port object. * - * This method will perform the actions required by the struct scic_sds_port on + * This function will perform the actions required by the + * struct scic_sds_port on * exiting the SCI_BASE_STATE_RESETTING. This function does nothing. none */ -static void scic_sds_port_resetting_state_exit( +static inline void scic_sds_port_resetting_state_exit( struct sci_base_object *object) { - struct scic_sds_port *this_port; + struct scic_sds_port *sci_port = (struct scic_sds_port *)object; - this_port = (struct scic_sds_port *)object; - - isci_event_timer_stop( - scic_sds_port_get_controller(this_port), - this_port->timer_handle - ); + isci_timer_stop(sci_port->timer_handle); } /** @@ -2842,51 +2843,42 @@ static void scic_sds_port_stopping_state_enter( /** * - * @object: This is the struct sci_base_object which is cast to a struct scic_sds_port object. + * @object: This is the struct sci_base_object which is cast to a + * struct scic_sds_port object. * - * This method will perform the actions required by the struct scic_sds_port on + * This function will perform the actions required by the + * struct scic_sds_port on * exiting the SCI_BASE_STATE_STOPPING. This function does nothing. none */ -static void scic_sds_port_stopping_state_exit( - struct sci_base_object *object) +static inline void +scic_sds_port_stopping_state_exit(struct sci_base_object *object) { - struct scic_sds_port *this_port; - - this_port = (struct scic_sds_port *)object; + struct scic_sds_port *sci_port = (struct scic_sds_port *)object; - isci_event_timer_stop( - scic_sds_port_get_controller(this_port), - this_port->timer_handle - ); + isci_timer_stop(sci_port->timer_handle); - scic_sds_port_destroy_dummy_resources(this_port); + scic_sds_port_destroy_dummy_resources(sci_port); } /** * - * @object: This is the struct sci_base_object which is cast to a struct scic_sds_port object. + * @object: This is the struct sci_base_object which is cast to a + * struct scic_sds_port object. * - * This method will perform the actions required by the struct scic_sds_port on + * This function will perform the actions required by the + * struct scic_sds_port on * entering the SCI_BASE_PORT_STATE_STOPPING. This function sets the stopping * state handlers for the struct scic_sds_port object. none */ -static void scic_sds_port_failed_state_enter( - struct sci_base_object *object) +static void scic_sds_port_failed_state_enter(struct sci_base_object *object) { - struct scic_sds_port *this_port; - - this_port = (struct scic_sds_port *)object; + struct scic_sds_port *sci_port = (struct scic_sds_port *)object; + struct isci_port *iport = sci_object_get_association(sci_port); - scic_sds_port_set_base_state_handlers( - this_port, - SCI_BASE_PORT_STATE_FAILED - ); + scic_sds_port_set_base_state_handlers(sci_port, + SCI_BASE_PORT_STATE_FAILED); - isci_event_port_hard_reset_complete( - scic_sds_port_get_controller(this_port), - this_port, - SCI_FAILURE_TIMEOUT - ); + isci_port_hard_reset_complete(iport, SCI_FAILURE_TIMEOUT); } /* --------------------------------------------------------------------------- */ diff --git a/drivers/scsi/isci/core/scic_sds_port_configuration_agent.c b/drivers/scsi/isci/core/scic_sds_port_configuration_agent.c index 7c9521049ae..d2d3f5293b2 100644 --- a/drivers/scsi/isci/core/scic_sds_port_configuration_agent.c +++ b/drivers/scsi/isci/core/scic_sds_port_configuration_agent.c @@ -431,46 +431,47 @@ static void scic_sds_mpc_agent_link_up( * assigned port. * @phy: This is the phy object which has gone link down. * - * This method handles the manual port configuration link down notifications. + * This function handles the manual port configuration link down notifications. * Since all ports and phys are associated at initialization time we just turn * around and notifiy the port object of the link down event. If this PHY is * not associated with a port there is no action taken. Is it possible to get a * link down notification from a phy that has no assocoated port? */ static void scic_sds_mpc_agent_link_down( - struct scic_sds_controller *controller, + struct scic_sds_controller *scic, struct scic_sds_port_configuration_agent *port_agent, - struct scic_sds_port *port, - struct scic_sds_phy *phy) + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) { - if (port != NULL) { + if (sci_port != NULL) { /* - * If we can form a new port from the remainder of the phys then we want - * to start the timer to allow the SCI User to cleanup old devices and - * rediscover the port before rebuilding the port with the phys that - * remain in the ready state. */ - port_agent->phy_ready_mask &= ~(1 << scic_sds_phy_get_index(phy)); - port_agent->phy_configured_mask &= ~(1 << scic_sds_phy_get_index(phy)); + * If we can form a new port from the remainder of the phys + * then we want to start the timer to allow the SCI User to + * cleanup old devices and rediscover the port before + * rebuilding the port with the phys that remain in the ready + * state. + */ + port_agent->phy_ready_mask &= + ~(1 << scic_sds_phy_get_index(sci_phy)); + port_agent->phy_configured_mask &= + ~(1 << scic_sds_phy_get_index(sci_phy)); /* - * Check to see if there are more phys waiting to be configured into a port. - * If there are allow the SCI User to tear down this port, if necessary, and - * then reconstruc the port after the timeout. */ - if ( - (port_agent->phy_configured_mask == 0x0000) - && (port_agent->phy_ready_mask != 0x0000) - && !port_agent->timer_pending - ) { + * Check to see if there are more phys waiting to be + * configured into a port. If there are allow the SCI User + * to tear down this port, if necessary, and then reconstruct + * the port after the timeout. + */ + if ((port_agent->phy_configured_mask == 0x0000) && + (port_agent->phy_ready_mask != 0x0000) && + !port_agent->timer_pending) { port_agent->timer_pending = true; - isci_event_timer_start( - controller, - port_agent->timer, - SCIC_SDS_MPC_RECONFIGURATION_TIMEOUT - ); + isci_timer_start(port_agent->timer, + SCIC_SDS_MPC_RECONFIGURATION_TIMEOUT); } - scic_sds_port_link_down(port, phy); + scic_sds_port_link_down(sci_port, sci_phy); } } @@ -535,19 +536,18 @@ static enum sci_status scic_sds_apc_agent_validate_phy_configuration( * the next time period. This could be caused by either a link down event or a * link up event where we can not yet tell to which port a phy belongs. */ -static void scic_sds_apc_agent_start_timer( - struct scic_sds_controller *controller, +static inline void scic_sds_apc_agent_start_timer( + struct scic_sds_controller *scic, struct scic_sds_port_configuration_agent *port_agent, - struct scic_sds_phy *phy, + struct scic_sds_phy *sci_phy, u32 timeout) { - if (port_agent->timer_pending) { - isci_event_timer_stop(controller, port_agent->timer); - } + if (port_agent->timer_pending) + isci_timer_stop(port_agent->timer); port_agent->timer_pending = true; - isci_event_timer_start(controller, port_agent->timer, timeout); + isci_timer_start(port_agent->timer, timeout); } /** @@ -816,45 +816,46 @@ void scic_sds_port_configuration_agent_construct( * This method will construct the port configuration agent for this controller. */ enum sci_status scic_sds_port_configuration_agent_initialize( - struct scic_sds_controller *controller, + struct scic_sds_controller *scic, struct scic_sds_port_configuration_agent *port_agent) { enum sci_status status = SCI_SUCCESS; enum SCIC_PORT_CONFIGURATION_MODE mode; + struct isci_host *ihost = sci_object_get_association(scic); - mode = controller->oem_parameters.sds1.controller.mode_type; + mode = scic->oem_parameters.sds1.controller.mode_type; if (mode == SCIC_PORT_MANUAL_CONFIGURATION_MODE) { - status = scic_sds_mpc_agent_validate_phy_configuration(controller, port_agent); + status = scic_sds_mpc_agent_validate_phy_configuration( + scic, port_agent); port_agent->link_up_handler = scic_sds_mpc_agent_link_up; port_agent->link_down_handler = scic_sds_mpc_agent_link_down; - port_agent->timer = isci_event_timer_create( - controller, - scic_sds_mpc_agent_timeout_handler, - controller - ); + port_agent->timer = isci_timer_create( + ihost, + scic, + scic_sds_mpc_agent_timeout_handler); } else { - status = scic_sds_apc_agent_validate_phy_configuration(controller, port_agent); + status = scic_sds_apc_agent_validate_phy_configuration( + scic, port_agent); port_agent->link_up_handler = scic_sds_apc_agent_link_up; port_agent->link_down_handler = scic_sds_apc_agent_link_down; - port_agent->timer = isci_event_timer_create( - controller, - scic_sds_apc_agent_timeout_handler, - controller - ); + port_agent->timer = isci_timer_create( + ihost, + scic, + scic_sds_apc_agent_timeout_handler); } /* Make sure we have actually gotten a timer */ if ((status == SCI_SUCCESS) && (port_agent->timer == NULL)) { - dev_err(scic_to_dev(controller), + dev_err(scic_to_dev(scic), "%s: Controller 0x%p automatic port configuration " "agent could not get timer.\n", __func__, - controller); + scic); status = SCI_FAILURE; } diff --git a/drivers/scsi/isci/core/scic_sds_remote_device.c b/drivers/scsi/isci/core/scic_sds_remote_device.c index 0ac6ca0f329..f722678eed8 100644 --- a/drivers/scsi/isci/core/scic_sds_remote_device.c +++ b/drivers/scsi/isci/core/scic_sds_remote_device.c @@ -1795,7 +1795,7 @@ static void scic_sds_remote_device_initial_state_enter( * @object: This is the struct sci_base_object that is cast into a * struct scic_sds_remote_device. * - * This is the enter method for the SCI_BASE_REMOTE_DEVICE_STATE_INITIAL it + * This is the enter function for the SCI_BASE_REMOTE_DEVICE_STATE_INITIAL it * sets the stopped state handlers and if this state is entered from the * SCI_BASE_REMOTE_DEVICE_STATE_STOPPING then the SCI User is informed that the * device stop is complete. none @@ -1803,30 +1803,29 @@ static void scic_sds_remote_device_initial_state_enter( static void scic_sds_remote_device_stopped_state_enter( struct sci_base_object *object) { - struct scic_sds_remote_device *this_device = (struct scic_sds_remote_device *)object; + struct scic_sds_remote_device *sci_dev = + (struct scic_sds_remote_device *)object; + struct scic_sds_controller *scic = + scic_sds_remote_device_get_controller(sci_dev); + struct isci_host *ihost = sci_object_get_association(scic); + struct isci_remote_device *idev = + sci_object_get_association(sci_dev); - SET_STATE_HANDLER( - this_device, - scic_sds_remote_device_state_handler_table, - SCI_BASE_REMOTE_DEVICE_STATE_STOPPED - ); + SET_STATE_HANDLER(sci_dev, + scic_sds_remote_device_state_handler_table, + SCI_BASE_REMOTE_DEVICE_STATE_STOPPED); /* * If we are entering from the stopping state let the SCI User know that - * the stop operation has completed. */ - if (this_device->parent.state_machine.previous_state_id - == SCI_BASE_REMOTE_DEVICE_STATE_STOPPING) { - isci_event_remote_device_stop_complete( - scic_sds_remote_device_get_controller(this_device), - this_device, - SCI_SUCCESS - ); - } + * the stop operation has completed. + */ + if (sci_dev->parent.state_machine.previous_state_id == + SCI_BASE_REMOTE_DEVICE_STATE_STOPPING) + isci_remote_device_stop_complete(ihost, idev, SCI_SUCCESS); scic_sds_controller_remote_device_stopped( - scic_sds_remote_device_get_controller(this_device), - this_device - ); + scic_sds_remote_device_get_controller(sci_dev), + sci_dev); } /** @@ -1834,29 +1833,28 @@ static void scic_sds_remote_device_stopped_state_enter( * @object: This is the struct sci_base_object that is cast into a * struct scic_sds_remote_device. * - * This is the enter method for the SCI_BASE_REMOTE_DEVICE_STATE_STARTING it + * This is the enter function for the SCI_BASE_REMOTE_DEVICE_STATE_STARTING it * sets the starting state handlers, sets the device not ready, and posts the * remote node context to the hardware. none */ static void scic_sds_remote_device_starting_state_enter( struct sci_base_object *object) { - struct scic_sds_controller *the_controller; - struct scic_sds_remote_device *this_device = (struct scic_sds_remote_device *)object; + struct scic_sds_controller *scic; + struct scic_sds_remote_device *sci_dev = + (struct scic_sds_remote_device *)object; + struct isci_remote_device *idev = sci_object_get_association(sci_dev); - the_controller = scic_sds_remote_device_get_controller(this_device); + scic = scic_sds_remote_device_get_controller(sci_dev); SET_STATE_HANDLER( - this_device, - scic_sds_remote_device_state_handler_table, - SCI_BASE_REMOTE_DEVICE_STATE_STARTING - ); + sci_dev, + scic_sds_remote_device_state_handler_table, + SCI_BASE_REMOTE_DEVICE_STATE_STARTING); - isci_event_remote_device_not_ready( - the_controller, - this_device, - SCIC_REMOTE_DEVICE_NOT_READY_START_REQUESTED - ); + isci_remote_device_not_ready( + idev, + SCIC_REMOTE_DEVICE_NOT_READY_START_REQUESTED); } /** @@ -1864,27 +1862,29 @@ static void scic_sds_remote_device_starting_state_enter( * @object: This is the struct sci_base_object that is cast into a * struct scic_sds_remote_device. * - * This is the exit method for the SCI_BASE_REMOTE_DEVICE_STATE_STARTING it + * This is the exit function for the SCI_BASE_REMOTE_DEVICE_STATE_STARTING it * reports that the device start is complete. none */ static void scic_sds_remote_device_starting_state_exit( struct sci_base_object *object) { - struct scic_sds_remote_device *this_device = (struct scic_sds_remote_device *)object; + struct scic_sds_remote_device *sci_dev = + (struct scic_sds_remote_device *)object; + struct scic_sds_controller *scic = + scic_sds_remote_device_get_controller(sci_dev); + struct isci_host *ihost = sci_object_get_association(scic); + struct isci_remote_device *idev = sci_object_get_association(sci_dev); + /* - * / @todo Check the device object for the proper return code for this - * / callback */ - isci_event_remote_device_start_complete( - scic_sds_remote_device_get_controller(this_device), - this_device, - SCI_SUCCESS - ); + * @todo Check the device object for the proper return code for this + * callback + */ + isci_remote_device_start_complete(ihost, idev, SCI_SUCCESS); scic_sds_controller_remote_device_started( - scic_sds_remote_device_get_controller(this_device), - this_device - ); + scic_sds_remote_device_get_controller(sci_dev), + sci_dev); } /** @@ -1892,30 +1892,28 @@ static void scic_sds_remote_device_starting_state_exit( * @object: This is the struct sci_base_object that is cast into a * struct scic_sds_remote_device. * - * This is the enter method for the SCI_BASE_REMOTE_DEVICE_STATE_READY it sets + * This is the enter function for the SCI_BASE_REMOTE_DEVICE_STATE_READY it sets * the ready state handlers, and starts the ready substate machine. none */ static void scic_sds_remote_device_ready_state_enter( struct sci_base_object *object) { - struct scic_sds_controller *the_controller; - struct scic_sds_remote_device *this_device = (struct scic_sds_remote_device *)object; - - the_controller = scic_sds_remote_device_get_controller(this_device); + struct scic_sds_remote_device *sci_dev = + (struct scic_sds_remote_device *)object; + struct isci_remote_device *idev = sci_object_get_association(sci_dev); + struct scic_sds_controller *scic + = scic_sds_remote_device_get_controller(sci_dev); - SET_STATE_HANDLER( - this_device, - scic_sds_remote_device_state_handler_table, - SCI_BASE_REMOTE_DEVICE_STATE_READY - ); + SET_STATE_HANDLER(sci_dev, + scic_sds_remote_device_state_handler_table, + SCI_BASE_REMOTE_DEVICE_STATE_READY); - the_controller->remote_device_sequence[this_device->rnc->remote_node_index]++; + scic->remote_device_sequence[sci_dev->rnc->remote_node_index]++; - if (this_device->has_ready_substate_machine) { - sci_base_state_machine_start(&this_device->ready_substate_machine); - } else { - isci_event_remote_device_ready(the_controller, this_device); - } + if (sci_dev->has_ready_substate_machine) + sci_base_state_machine_start(&sci_dev->ready_substate_machine); + else + isci_remote_device_ready(idev); } /** @@ -1923,26 +1921,22 @@ static void scic_sds_remote_device_ready_state_enter( * @object: This is the struct sci_base_object that is cast into a * struct scic_sds_remote_device. * - * This is the exit method for the SCI_BASE_REMOTE_DEVICE_STATE_READY it does + * This is the exit function for the SCI_BASE_REMOTE_DEVICE_STATE_READY it does * nothing. none */ static void scic_sds_remote_device_ready_state_exit( struct sci_base_object *object) { - struct scic_sds_controller *the_controller; - struct scic_sds_remote_device *this_device = (struct scic_sds_remote_device *)object; + struct scic_sds_remote_device *sci_dev = + (struct scic_sds_remote_device *)object; + struct isci_remote_device *idev = sci_object_get_association(sci_dev); - the_controller = scic_sds_remote_device_get_controller(this_device); - - if (this_device->has_ready_substate_machine) { - sci_base_state_machine_stop(&this_device->ready_substate_machine); - } else { - isci_event_remote_device_not_ready( - the_controller, - this_device, - SCIC_REMOTE_DEVICE_NOT_READY_STOP_REQUESTED - ); - } + if (sci_dev->has_ready_substate_machine) + sci_base_state_machine_stop(&sci_dev->ready_substate_machine); + else + isci_remote_device_not_ready( + idev, + SCIC_REMOTE_DEVICE_NOT_READY_STOP_REQUESTED); } /** diff --git a/drivers/scsi/isci/core/scic_sds_request.c b/drivers/scsi/isci/core/scic_sds_request.c index 00bebb9c069..4542f4e75f7 100644 --- a/drivers/scsi/isci/core/scic_sds_request.c +++ b/drivers/scsi/isci/core/scic_sds_request.c @@ -2077,30 +2077,24 @@ static void scic_sds_request_started_state_exit( static void scic_sds_request_completed_state_enter( struct sci_base_object *object) { - struct scic_sds_request *this_request = (struct scic_sds_request *)object; + struct scic_sds_request *sci_req = (struct scic_sds_request *)object; + struct scic_sds_controller *scic = + scic_sds_request_get_controller(sci_req); + struct isci_host *ihost = sci_object_get_association(scic); + struct isci_request *ireq = sci_object_get_association(sci_req); - SET_STATE_HANDLER( - this_request, - scic_sds_request_state_handler_table, - SCI_BASE_REQUEST_STATE_COMPLETED - ); + + SET_STATE_HANDLER(sci_req, + scic_sds_request_state_handler_table, + SCI_BASE_REQUEST_STATE_COMPLETED); /* Tell the SCI_USER that the IO request is complete */ - if (this_request->is_task_management_request == false) { - isci_event_io_request_complete( - scic_sds_request_get_controller(this_request), - scic_sds_request_get_device(this_request), - this_request, - this_request->sci_status - ); - } else { - isci_event_task_request_complete( - scic_sds_request_get_controller(this_request), - scic_sds_request_get_device(this_request), - this_request, - this_request->sci_status - ); - } + if (sci_req->is_task_management_request == false) + isci_request_io_request_complete(ihost, + ireq, + sci_req->sci_status); + else + isci_task_request_complete(ihost, ireq, sci_req->sci_status); } /** diff --git a/drivers/scsi/isci/core/scic_sds_smp_remote_device.c b/drivers/scsi/isci/core/scic_sds_smp_remote_device.c index 93e6ab83b01..fb832ef544e 100644 --- a/drivers/scsi/isci/core/scic_sds_smp_remote_device.c +++ b/drivers/scsi/isci/core/scic_sds_smp_remote_device.c @@ -250,22 +250,23 @@ const struct scic_sds_remote_device_state_handler scic_sds_smp_remote_device_rea * struct scic_sds_remote_device. * * This is the SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE enter method. - * This method sets the ready cmd substate handlers and reports the device as + * This function sets the ready cmd substate handlers and reports the device as * ready. none */ -static void scic_sds_smp_remote_device_ready_idle_substate_enter( +static inline void scic_sds_smp_remote_device_ready_idle_substate_enter( struct sci_base_object *object) { - struct scic_sds_remote_device *this_device = (struct scic_sds_remote_device *)object; + struct scic_sds_remote_device *sci_dev = + (struct scic_sds_remote_device *)object; + struct isci_remote_device *idev = sci_object_get_association(sci_dev); + SET_STATE_HANDLER( - this_device, - scic_sds_smp_remote_device_ready_substate_handler_table, - SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE - ); + sci_dev, + scic_sds_smp_remote_device_ready_substate_handler_table, + SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE); - isci_event_remote_device_ready( - scic_sds_remote_device_get_controller(this_device), this_device); + isci_remote_device_ready(idev); } /** @@ -274,27 +275,26 @@ static void scic_sds_smp_remote_device_ready_idle_substate_enter( * struct scic_sds_remote_device. * * This is the SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD enter method. This - * method sets the remote device objects ready cmd substate handlers, and + * function sets the remote device objects ready cmd substate handlers, and * notify core user that the device is not ready. none */ static void scic_sds_smp_remote_device_ready_cmd_substate_enter( struct sci_base_object *object) { - struct scic_sds_remote_device *this_device = (struct scic_sds_remote_device *)object; + struct scic_sds_remote_device *sci_dev = + (struct scic_sds_remote_device *)object; + struct isci_remote_device *idev = sci_object_get_association(sci_dev); - BUG_ON(this_device->working_request == NULL); + BUG_ON(sci_dev->working_request == NULL); SET_STATE_HANDLER( - this_device, - scic_sds_smp_remote_device_ready_substate_handler_table, - SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD - ); + sci_dev, + scic_sds_smp_remote_device_ready_substate_handler_table, + SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD); - isci_event_remote_device_not_ready( - scic_sds_remote_device_get_controller(this_device), - this_device, - SCIC_REMOTE_DEVICE_NOT_READY_SMP_REQUEST_STARTED - ); + isci_remote_device_not_ready( + idev, + SCIC_REMOTE_DEVICE_NOT_READY_SMP_REQUEST_STARTED); } /** diff --git a/drivers/scsi/isci/core/scic_sds_stp_remote_device.c b/drivers/scsi/isci/core/scic_sds_stp_remote_device.c index 9a615f07cef..cb396d12777 100644 --- a/drivers/scsi/isci/core/scic_sds_stp_remote_device.c +++ b/drivers/scsi/isci/core/scic_sds_stp_remote_device.c @@ -677,23 +677,22 @@ const struct scic_sds_remote_device_state_handler scic_sds_stp_remote_device_rea * * STP REMOTE DEVICE READY SUBSTATE PRIVATE METHODS * ***************************************************************************** */ -static void scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handler( - void *user_cookie) +static inline void +scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handler( + void *user_cookie) { - struct scic_sds_remote_device *this_device; - - this_device = (struct scic_sds_remote_device *)user_cookie; + struct scic_sds_remote_device *sci_dev = + (struct scic_sds_remote_device *)user_cookie; + struct isci_remote_device *idev = sci_object_get_association(sci_dev); /* * For NCQ operation we do not issue a * scic_cb_remote_device_not_ready(). As a result, avoid sending - * the ready notification. */ - if (this_device->ready_substate_machine.previous_state_id - != SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ) { - isci_event_remote_device_ready( - scic_sds_remote_device_get_controller(this_device), this_device - ); - } + * the ready notification. + */ + if (sci_dev->ready_substate_machine.previous_state_id != + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ) + isci_remote_device_ready(idev); } /* @@ -749,26 +748,23 @@ static void scic_sds_stp_remote_device_ready_idle_substate_enter( * struct scic_sds_remote_device object. * */ -static void scic_sds_stp_remote_device_ready_cmd_substate_enter( +static inline void scic_sds_stp_remote_device_ready_cmd_substate_enter( struct sci_base_object *device) { - struct scic_sds_remote_device *this_device; + struct scic_sds_remote_device *sci_dev = + (struct scic_sds_remote_device *)device; + struct isci_remote_device *idev = sci_object_get_association(sci_dev); - this_device = (struct scic_sds_remote_device *)device; - - BUG_ON(this_device->working_request == NULL); + BUG_ON(sci_dev->working_request == NULL); SET_STATE_HANDLER( - this_device, - scic_sds_stp_remote_device_ready_substate_handler_table, - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD - ); + sci_dev, + scic_sds_stp_remote_device_ready_substate_handler_table, + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD); - isci_event_remote_device_not_ready( - scic_sds_remote_device_get_controller(this_device), - this_device, - SCIC_REMOTE_DEVICE_NOT_READY_SATA_REQUEST_STARTED - ); + isci_remote_device_not_ready( + idev, + SCIC_REMOTE_DEVICE_NOT_READY_SATA_REQUEST_STARTED); } /* @@ -807,27 +803,21 @@ static void scic_sds_stp_remote_device_ready_ncq_substate_enter( * struct scic_sds_remote_device object. * */ -static void scic_sds_stp_remote_device_ready_ncq_error_substate_enter( +static inline void scic_sds_stp_remote_device_ready_ncq_error_substate_enter( struct sci_base_object *device) { - struct scic_sds_remote_device *this_device; - - this_device = (struct scic_sds_remote_device *)device; + struct scic_sds_remote_device *sci_dev = + (struct scic_sds_remote_device *)device; + struct isci_remote_device *idev = sci_object_get_association(sci_dev); SET_STATE_HANDLER( - this_device, - scic_sds_stp_remote_device_ready_substate_handler_table, - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR - ); + sci_dev, + scic_sds_stp_remote_device_ready_substate_handler_table, + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR); - if (this_device->not_ready_reason == - SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED) { - isci_event_remote_device_not_ready( - scic_sds_remote_device_get_controller(this_device), - this_device, - this_device->not_ready_reason - ); - } + if (sci_dev->not_ready_reason == + SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED) + isci_remote_device_not_ready(idev, sci_dev->not_ready_reason); } /* diff --git a/drivers/scsi/isci/events.c b/drivers/scsi/isci/events.c deleted file mode 100644 index 9d58e458a37..00000000000 --- a/drivers/scsi/isci/events.c +++ /dev/null @@ -1,609 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - - -/** - * This file contains isci module object implementation. - * - * - */ - -#include "isci.h" -#include "request.h" -#include "sata.h" -#include "task.h" -#include "events.h" - -/** - * isci_event_timer_create() - This callback method asks the user to create a - * timer and provide a handle for this timer for use in further timer - * interactions. The appropriate isci timer object function is called to - * create a timer object. - * @timer_callback: This parameter specifies the callback method to be invoked - * whenever the timer expires. - * @controller: This parameter specifies the controller with which this timer - * is to be associated. - * @cb_param: opaque callback parameter - * - * This method returns a handle to a timer object created by the user. The - * handle will be utilized for all further interactions relating to this timer. - */ -void *isci_event_timer_create(struct scic_sds_controller *scic, - void (*timer_callback)(void *), - void *cb_param) -{ - struct isci_host *ihost = sci_object_get_association(scic); - struct isci_timer *itimer; - - itimer = isci_timer_create(ihost, cb_param, timer_callback); - - dev_dbg(&ihost->pdev->dev, "%s: timer = %p\n", __func__, itimer); - - return itimer; -} - - -/** - * isci_event_timer_start() - This callback method asks the user to start the - * supplied timer. The appropriate isci timer object function is called to - * start the timer. - * @controller: This parameter specifies the controller with which this timer - * is to associated. - * @timer: This parameter specifies the timer to be started. - * @milliseconds: This parameter specifies the number of milliseconds for which - * to stall. The operating system driver is allowed to round this value up - * where necessary. - * - */ -void isci_event_timer_start( - struct scic_sds_controller *controller, - void *timer, - u32 milliseconds) -{ - struct isci_host *isci_host; - - isci_host = - (struct isci_host *)sci_object_get_association(controller); - - dev_dbg(&isci_host->pdev->dev, - "%s: isci_host = %p, timer = %p, milliseconds = %d\n", - __func__, isci_host, timer, milliseconds); - - isci_timer_start((struct isci_timer *)timer, milliseconds); - -} - -/** - * isci_event_timer_stop() - This callback method asks the user to stop the - * supplied timer. The appropriate isci timer object function is called to - * stop the timer. - * @controller: This parameter specifies the controller with which this timer - * is to associated. - * @timer: This parameter specifies the timer to be stopped. - * - */ -void isci_event_timer_stop(struct scic_sds_controller *controller, void *timer) -{ - struct isci_host *isci_host = sci_object_get_association(controller); - - dev_dbg(&isci_host->pdev->dev, - "%s: isci_host = %p, timer = %p\n", - __func__, isci_host, timer); - - isci_timer_stop((struct isci_timer *)timer); -} - -void isci_event_timer_destroy(struct scic_sds_controller *scic, void *timer) -{ - struct isci_host *ihost = sci_object_get_association(scic); - - dev_dbg(&ihost->pdev->dev, "%s: ihost = %p, timer = %p\n", - __func__, ihost, timer); - - isci_del_timer(ihost, timer); -} - -/** - * isci_event_controller_start_complete() - This user callback will inform the - * user that the controller has finished the start process. The associated - * isci host adapter's start_complete function is called. - * @controller: This parameter specifies the controller that was started. - * @completion_status: This parameter specifies the results of the start - * operation. SCI_SUCCESS indicates successful completion. - * - */ -void isci_event_controller_start_complete( - struct scic_sds_controller *controller, - enum sci_status completion_status) -{ - struct isci_host *isci_host = - (struct isci_host *)sci_object_get_association(controller); - - dev_dbg(&isci_host->pdev->dev, - "%s: isci_host = %p\n", __func__, isci_host); - - isci_host_start_complete(isci_host, completion_status); -} - -/** - * isci_event_controller_stop_complete() - This user callback will inform the user - * that the controller has finished the stop process. The associated isci - * host adapter's start_complete function is called. - * @controller: This parameter specifies the controller that was stopped. - * @completion_status: This parameter specifies the results of the stop - * operation. SCI_SUCCESS indicates successful completion. - * - */ -void isci_event_controller_stop_complete( - struct scic_sds_controller *controller, - enum sci_status completion_status) -{ - struct isci_host *isci_host = - (struct isci_host *)sci_object_get_association(controller); - - dev_dbg(&isci_host->pdev->dev, - "%s: status = 0x%x\n", __func__, completion_status); - isci_host_stop_complete(isci_host, completion_status); -} - -/** - * isci_event_io_request_complete() - This user callback will inform the user that - * an IO request has completed. - * @controller: This parameter specifies the controller on which the IO is - * completing. - * @remote_device: This parameter specifies the remote device on which this IO - * request is completing. - * @io_request: This parameter specifies the IO request that has completed. - * @completion_status: This parameter specifies the results of the IO request - * operation. SCI_SUCCESS indicates successful completion. - * - */ -void isci_event_io_request_complete( - struct scic_sds_controller *controller, - struct scic_sds_remote_device *remote_device, - struct scic_sds_request *scic_io_request, - enum sci_io_status completion_status) -{ - struct isci_request *request; - struct isci_host *isci_host; - - isci_host = - (struct isci_host *)sci_object_get_association(controller); - - request = - (struct isci_request *)sci_object_get_association( - scic_io_request - ); - - isci_request_io_request_complete(isci_host, - request, - completion_status); -} - -/** - * isci_event_task_request_complete() - This user callback will inform the user - * that a task management request completed. - * @controller: This parameter specifies the controller on which the task - * management request is completing. - * @remote_device: This parameter specifies the remote device on which this - * task management request is completing. - * @task_request: This parameter specifies the task management request that has - * completed. - * @completion_status: This parameter specifies the results of the IO request - * operation. SCI_SUCCESS indicates successful completion. - * - */ -void isci_event_task_request_complete( - struct scic_sds_controller *controller, - struct scic_sds_remote_device *remote_device, - struct scic_sds_request *scic_task_request, - enum sci_task_status completion_status) -{ - struct isci_request *request; - struct isci_host *isci_host; - - isci_host = - (struct isci_host *)sci_object_get_association(controller); - - request = - (struct isci_request *)sci_object_get_association( - scic_task_request); - - isci_task_request_complete(isci_host, request, completion_status); -} - -/** - * isci_event_port_stop_complete() - This method informs the user when a stop - * operation on the port has completed. - * @controller: This parameter represents the controller which contains the - * port. - * @port: This parameter specifies the SCI port object for which the callback - * is being invoked. - * @completion_status: This parameter specifies the status for the operation - * being completed. - * - */ -void isci_event_port_stop_complete( - struct scic_sds_controller *controller, - struct scic_sds_port *port, - enum sci_status completion_status) -{ - struct isci_host *isci_host; - - isci_host = (struct isci_host *)sci_object_get_association(controller); - - dev_notice(&isci_host->pdev->dev, "Port stop complete\n"); -} - -/** - * isci_event_port_hard_reset_complete() - This method informs the user when a - * hard reset on the port has completed. This hard reset could have been - * initiated by the user or by the remote port. - * @controller: This parameter represents the controller which contains the - * port. - * @port: This parameter specifies the SCI port object for which the callback - * is being invoked. - * @completion_status: This parameter specifies the status for the operation - * being completed. - * - */ -void isci_event_port_hard_reset_complete( - struct scic_sds_controller *controller, - struct scic_sds_port *port, - enum sci_status completion_status) -{ - struct isci_port *isci_port - = (struct isci_port *)sci_object_get_association(port); - - isci_port_hard_reset_complete(isci_port, completion_status); -} - -/** - * isci_event_port_ready() - This method informs the user that the port is now in - * a ready state and can be utilized to issue IOs. - * @controller: This parameter represents the controller which contains the - * port. - * @port: This parameter specifies the SCI port object for which the callback - * is being invoked. - * - */ -void isci_event_port_ready( - struct scic_sds_controller *controller, - struct scic_sds_port *port) -{ - struct isci_port *isci_port; - struct isci_host *isci_host; - - isci_host = - (struct isci_host *)sci_object_get_association(controller); - - isci_port = - (struct isci_port *)sci_object_get_association(port); - - dev_dbg(&isci_host->pdev->dev, - "%s: isci_port = %p\n", __func__, isci_port); - - isci_port_ready(isci_host, isci_port); -} - -/** - * isci_event_port_not_ready() - This method informs the user that the port is now - * not in a ready (i.e. busy) state and can't be utilized to issue IOs. - * @controller: This parameter represents the controller which contains the - * port. - * @port: This parameter specifies the SCI port object for which the callback - * is being invoked. - * - */ -void isci_event_port_not_ready( - struct scic_sds_controller *controller, - struct scic_sds_port *port, - u32 reason_code) -{ - struct isci_port *isci_port; - struct isci_host *isci_host; - - isci_host = - (struct isci_host *)sci_object_get_association(controller); - - isci_port = - (struct isci_port *)sci_object_get_association(port); - - dev_dbg(&isci_host->pdev->dev, - "%s: isci_port = %p\n", __func__, isci_port); - - isci_port_not_ready(isci_host, isci_port); -} - -/** - * isci_event_port_invalid_link_up() - This method informs the SCI Core user that - * a phy/link became ready, but the phy is not allowed in the port. In some - * situations the underlying hardware only allows for certain phy to port - * mappings. If these mappings are violated, then this API is invoked. - * @controller: This parameter represents the controller which contains the - * port. - * @port: This parameter specifies the SCI port object for which the callback - * is being invoked. - * @phy: This parameter specifies the phy that came ready, but the phy can't be - * a valid member of the port. - * - */ -void isci_event_port_invalid_link_up( - struct scic_sds_controller *controller, - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - struct isci_host *isci_host; - - isci_host = (struct isci_host *)sci_object_get_association(controller); - dev_warn(&isci_host->pdev->dev, "Invalid link up!\n"); -} - -/** - * isci_event_port_bc_change_primitive_received() - This callback method informs - * the user that a broadcast change primitive was received. - * @controller: This parameter represents the controller which contains the - * port. - * @port: This parameter specifies the SCI port object for which the callback - * is being invoked. For instances where the phy on which the primitive was - * received is not part of a port, this parameter will be NULL. - * @phy: This parameter specifies the phy on which the primitive was received. - * - */ -void isci_event_port_bc_change_primitive_received( - struct scic_sds_controller *controller, - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - struct isci_host *isci_host; - - isci_host = - (struct isci_host *)sci_object_get_association(controller); - - dev_dbg(&isci_host->pdev->dev, - "%s: port = %p, phy = %p\n", __func__, port, phy); - isci_port_bc_change_received(isci_host, port, phy); -} - - - - -/** - * isci_event_port_link_up() - This callback method informs the user that a phy - * has become operational and is capable of communicating with the remote - * end point. - * @controller: This parameter represents the controller associated with the - * phy. - * @port: This parameter specifies the port object for which the user callback - * is being invoked. There may be conditions where this parameter can be - * NULL - * @phy: This parameter specifies the phy object for which the user callback is - * being invoked. - * - * none. - */ -void isci_event_port_link_up( - struct scic_sds_controller *controller, - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - struct isci_host *isci_host; - - isci_host = - (struct isci_host *)sci_object_get_association(controller); - - dev_dbg(&isci_host->pdev->dev, - "%s: phy = %p\n", __func__, phy); - - isci_port_link_up(isci_host, port, phy); -} - -/** - * isci_event_port_link_down() - This callback method informs the user that a phy - * is no longer operational and is not capable of communicating with the - * remote end point. - * @controller: This parameter represents the controller associated with the - * phy. - * @port: This parameter specifies the port object for which the user callback - * is being invoked. There may be conditions where this parameter can be - * NULL - * @phy: This parameter specifies the phy object for which the user callback is - * being invoked. - * - * none. - */ -void isci_event_port_link_down( - struct scic_sds_controller *controller, - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - struct isci_host *isci_host; - struct isci_phy *isci_phy; - struct isci_port *isci_port; - - isci_host = - (struct isci_host *)sci_object_get_association(controller); - - isci_phy = - (struct isci_phy *)sci_object_get_association(phy); - - isci_port = - (struct isci_port *)sci_object_get_association(port); - - dev_dbg(&isci_host->pdev->dev, - "%s: isci_port = %p\n", __func__, isci_port); - - isci_port_link_down(isci_host, isci_phy, isci_port); -} - -/** - * isci_event_remote_device_start_complete() - This user callback method will - * inform the user that a start operation has completed. - * @controller: This parameter specifies the core controller associated with - * the completion callback. - * @remote_device: This parameter specifies the remote device associated with - * the completion callback. - * @completion_status: This parameter specifies the completion status for the - * operation. - * - */ -void isci_event_remote_device_start_complete( - struct scic_sds_controller *controller, - struct scic_sds_remote_device *remote_device, - enum sci_status completion_status) -{ - struct isci_host *isci_host; - struct isci_remote_device *isci_device; - - isci_host = - (struct isci_host *)sci_object_get_association(controller); - - isci_device = - (struct isci_remote_device *)sci_object_get_association( - remote_device - ); - - dev_dbg(&isci_host->pdev->dev, - "%s: isci_device = %p\n", __func__, isci_device); - - isci_remote_device_start_complete( - isci_host, isci_device, completion_status); - -} - -/** - * isci_event_remote_device_stop_complete() - This user callback method will - * inform the user that a stop operation has completed. - * @scic: This parameter specifies the core controller associated with - * the completion callback. - * @remote_device: This parameter specifies the remote device associated with - * the completion callback. - * @completion_status: This parameter specifies the completion status for the - * operation. - * - */ -void isci_event_remote_device_stop_complete(struct scic_sds_controller *scic, - struct scic_sds_remote_device *sci_dev, - enum sci_status completion_status) -{ - struct isci_host *ihost; - struct isci_remote_device *idev; - - ihost = sci_object_get_association(scic); - idev = sci_object_get_association(sci_dev); - - dev_dbg(&ihost->pdev->dev, - "%s: idev = %p\n", __func__, idev); - - isci_remote_device_stop_complete(ihost, idev, completion_status); -} - -/** - * isci_event_remote_device_ready() - This user callback method will inform the - * user that a remote device is now capable of handling IO requests. - * @controller: This parameter specifies the core controller associated with - * the completion callback. - * @remote_device: This parameter specifies the remote device associated with - * the callback. - * - */ -void isci_event_remote_device_ready( - struct scic_sds_controller *controller, - struct scic_sds_remote_device *remote_device) -{ - struct isci_remote_device *isci_device = - (struct isci_remote_device *) - sci_object_get_association(remote_device); - - dev_dbg(&isci_device->isci_port->isci_host->pdev->dev, - "%s: isci_device = %p\n", __func__, isci_device); - - isci_remote_device_ready(isci_device); -} - -/** - * isci_event_remote_device_not_ready() - This user callback method will inform - * the user that a remote device is no longer capable of handling IO - * requests (until a ready callback is invoked). - * @controller: This parameter specifies the core controller associated with - * the completion callback. - * @remote_device: This parameter specifies the remote device associated with - * the callback. - * @reason_code: This parameter specifies the reason for the remote device - * going to a not ready state. - * - */ -void isci_event_remote_device_not_ready( - struct scic_sds_controller *controller, - struct scic_sds_remote_device *remote_device, - u32 reason_code) -{ - struct isci_remote_device *isci_device = - (struct isci_remote_device *) - sci_object_get_association(remote_device); - - struct isci_host *isci_host; - - isci_host = - (struct isci_host *)sci_object_get_association(controller); - - dev_dbg(&isci_host->pdev->dev, - "%s: isci_device = %p, reason_code = %x\n", - __func__, isci_device, reason_code); - - isci_remote_device_not_ready(isci_device, reason_code); -} - - diff --git a/drivers/scsi/isci/events.h b/drivers/scsi/isci/events.h deleted file mode 100644 index fa2f6aa1093..00000000000 --- a/drivers/scsi/isci/events.h +++ /dev/null @@ -1,373 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef _ISCI_EVENT_H_ -#define _ISCI_EVENT_H_ - -/** - * isci_event_timer_create() - This callback method asks the user to create a - * timer and provide a handle for this timer for use in further timer - * interactions. - * @controller: This parameter specifies the controller with which this timer - * is to be associated. - * @timer_callback: This parameter specifies the callback method to be invoked - * whenever the timer expires. - * @cookie: This parameter specifies a piece of information that the user must - * retain. This cookie is to be supplied by the user anytime a timeout - * occurs for the created timer. - * - * The "timer_callback" method should be executed in a mutually exlusive manner - * from the controller completion handler handler. This method returns a handle - * to a timer object created by the user. The handle will be utilized for all - * further interactions relating to this timer. - */ -void *isci_event_timer_create( - struct scic_sds_controller *controller, - void (*timer_callback)(void *), - void *cookie); - -/** - * isci_event_timer_start() - This callback method asks the user to start the - * supplied timer. - * @controller: This parameter specifies the controller with which this timer - * is to associated. - * @timer: This parameter specifies the timer to be started. - * @milliseconds: This parameter specifies the number of milliseconds for which - * to stall. The operating system driver is allowed to round this value up - * where necessary. - * - * All timers in the system started by the SCI Core are one shot timers. - * Therefore, the SCI user should make sure that it removes the timer from it's - * list when a timer actually fires. Additionally, SCI Core user's should be - * able to handle calls from the SCI Core to stop a timer that may already be - * stopped. none - */ -void isci_event_timer_start( - struct scic_sds_controller *controller, - void *timer, - u32 milliseconds); - -/** - * isci_event_timer_stop() - This callback method asks the user to stop the - * supplied timer. - * @controller: This parameter specifies the controller with which this timer - * is to associated. - * @timer: This parameter specifies the timer to be stopped. - * - */ -void isci_event_timer_stop( - struct scic_sds_controller *controller, - void *timer); - - -void isci_event_timer_destroy(struct scic_sds_controller *scic, void *timer); - -/** - * isci_event_controller_start_complete() - This user callback will inform the - * user that the controller has finished the start process. - * @controller: This parameter specifies the controller that was started. - * @completion_status: This parameter specifies the results of the start - * operation. SCI_SUCCESS indicates successful completion. - * - */ -void isci_event_controller_start_complete( - struct scic_sds_controller *controller, - enum sci_status completion_status); - -/** - * isci_event_controller_stop_complete() - This user callback will inform the - * user that the controller has finished the stop process. - * @controller: This parameter specifies the controller that was stopped. - * @completion_status: This parameter specifies the results of the stop - * operation. SCI_SUCCESS indicates successful completion. - * - */ -void isci_event_controller_stop_complete( - struct scic_sds_controller *controller, - enum sci_status completion_status); - -/** - * isci_event_io_request_complete() - This user callback will inform the user - * that an IO request has completed. - * @controller: This parameter specifies the controller on which the IO is - * completing. - * @remote_device: This parameter specifies the remote device on which this IO - * request is completing. - * @io_request: This parameter specifies the IO request that has completed. - * @completion_status: This parameter specifies the results of the IO request - * operation. SCI_SUCCESS indicates successful completion. - * - */ -void isci_event_io_request_complete( - struct scic_sds_controller *controller, - struct scic_sds_remote_device *remote_device, - struct scic_sds_request *scic_io_request, - enum sci_io_status completion_status); - -/** - * isci_event_task_request_complete() - This user callback will inform the user - * that a task management request completed. - * @controller: This parameter specifies the controller on which the task - * management request is completing. - * @remote_device: This parameter specifies the remote device on which this - * task management request is completing. - * @task_request: This parameter specifies the task management request that has - * completed. - * @completion_status: This parameter specifies the results of the IO request - * operation. SCI_SUCCESS indicates successful completion. - * - */ -void isci_event_task_request_complete( - struct scic_sds_controller *controller, - struct scic_sds_remote_device *remote_device, - struct scic_sds_request *scic_task_request, - enum sci_task_status completion_status); - -/** - * isci_event_port_stop_complete() - This method informs the user when a stop - * operation on the port has completed. - * @controller: This parameter represents the controller which contains the - * port. - * @port: This parameter specifies the SCI port object for which the callback - * is being invoked. - * @completion_status: This parameter specifies the status for the operation - * being completed. - * - */ -void isci_event_port_stop_complete( - struct scic_sds_controller *controller, - struct scic_sds_port *port, - enum sci_status completion_status); - -/** - * isci_event_port_hard_reset_complete() - This method informs the user when a - * hard reset on the port has completed. This hard reset could have been - * initiated by the user or by the remote port. - * @controller: This parameter represents the controller which contains the - * port. - * @port: This parameter specifies the SCI port object for which the callback - * is being invoked. - * @completion_status: This parameter specifies the status for the operation - * being completed. - * - */ -void isci_event_port_hard_reset_complete( - struct scic_sds_controller *controller, - struct scic_sds_port *port, - enum sci_status completion_status); - -/** - * isci_event_port_ready() - This method informs the user that the port is now - * in a ready state and can be utilized to issue IOs. - * @controller: This parameter represents the controller which contains the - * port. - * @port: This parameter specifies the SCI port object for which the callback - * is being invoked. - * - */ -void isci_event_port_ready( - struct scic_sds_controller *controller, - struct scic_sds_port *port); - -/** - * isci_event_port_not_ready() - This method informs the user that the port is - * now not in a ready (i.e. busy) state and can't be utilized to issue IOs. - * @controller: This parameter represents the controller which contains the - * port. - * @port: This parameter specifies the SCI port object for which the callback - * is being invoked. - * @reason_code: This parameter specifies the reason for the port not ready - * callback. - * - */ -void isci_event_port_not_ready( - struct scic_sds_controller *controller, - struct scic_sds_port *port, - u32 reason_code); - -/** - * isci_event_port_invalid_link_up() - This method informs the SCI Core user - * that a phy/link became ready, but the phy is not allowed in the port. In - * some situations the underlying hardware only allows for certain phy to port - * mappings. If these mappings are violated, then this API is invoked. - * @controller: This parameter represents the controller which contains the - * port. - * @port: This parameter specifies the SCI port object for which the callback - * is being invoked. - * @phy: This parameter specifies the phy that came ready, but the phy can't be - * a valid member of the port. - * - */ -void isci_event_port_invalid_link_up( - struct scic_sds_controller *controller, - struct scic_sds_port *port, - struct scic_sds_phy *phy); - -/** - * isci_event_port_bc_change_primitive_received() - This callback method informs - * the user that a broadcast change primitive was received. - * @controller: This parameter represents the controller which contains the - * port. - * @port: This parameter specifies the SCI port object for which the callback - * is being invoked. For instances where the phy on which the primitive was - * received is not part of a port, this parameter will be - * NULL. - * @phy: This parameter specifies the phy on which the primitive was received. - * - */ -void isci_event_port_bc_change_primitive_received( - struct scic_sds_controller *controller, - struct scic_sds_port *port, - struct scic_sds_phy *phy); - -/** - * isci_event_port_link_up() - This callback method informs the user that a phy - * has become operational and is capable of communicating with the remote - * end point. - * @controller: This parameter represents the controller associated with the - * phy. - * @port: This parameter specifies the port object for which the user callback - * is being invoked. There may be conditions where this parameter can be - * NULL - * @phy: This parameter specifies the phy object for which the user callback is - * being invoked. - * - */ -void isci_event_port_link_up( - struct scic_sds_controller *controller, - struct scic_sds_port *port, - struct scic_sds_phy *phy); - -/** - * isci_event_port_link_down() - This callback method informs the user that a - * phy is no longer operational and is not capable of communicating with the - * remote end point. - * @controller: This parameter represents the controller associated with the - * phy. - * @port: This parameter specifies the port object for which the user callback - * is being invoked. There may be conditions where this parameter can be - * NULL - * @phy: This parameter specifies the phy object for which the user callback is - * being invoked. - * - */ -void isci_event_port_link_down( - struct scic_sds_controller *controller, - struct scic_sds_port *port, - struct scic_sds_phy *phy); - -/** - * isci_event_remote_device_start_complete() - This user callback method will - * inform the user that a start operation has completed. - * @controller: This parameter specifies the core controller associated with - * the completion callback. - * @remote_device: This parameter specifies the remote device associated with - * the completion callback. - * @completion_status: This parameter specifies the completion status for the - * operation. - * - */ -void isci_event_remote_device_start_complete( - struct scic_sds_controller *controller, - struct scic_sds_remote_device *remote_device, - enum sci_status completion_status); - -/** - * isci_event_remote_device_stop_complete() - This user callback method will - * inform the user that a stop operation has completed. - * @controller: This parameter specifies the core controller associated with - * the completion callback. - * @remote_device: This parameter specifies the remote device associated with - * the completion callback. - * @completion_status: This parameter specifies the completion status for the - * operation. - * - */ -void isci_event_remote_device_stop_complete( - struct scic_sds_controller *controller, - struct scic_sds_remote_device *remote_device, - enum sci_status completion_status); - -/** - * isci_event_remote_device_ready() - This user callback method will inform the - * user that a remote device is now capable of handling IO requests. - * @controller: This parameter specifies the core controller associated with - * the completion callback. - * @remote_device: This parameter specifies the remote device associated with - * the callback. - * - */ -void isci_event_remote_device_ready( - struct scic_sds_controller *controller, - struct scic_sds_remote_device *remote_device); - -/** - * isci_event_remote_device_not_ready() - This user callback method will inform - * the user that a remote device is no longer capable of handling IO - * requests (until a ready callback is invoked). - * @controller: This parameter specifies the core controller associated with - * the completion callback. - * @remote_device: This parameter specifies the remote device associated with - * the callback. - * @reason_code: This paramete specifies the reason the remote device is not - * ready. - * - */ -void isci_event_remote_device_not_ready( - struct scic_sds_controller *controller, - struct scic_sds_remote_device *remote_device, - u32 reason_code); - -#endif diff --git a/drivers/scsi/isci/isci.h b/drivers/scsi/isci/isci.h index a2df59c9e06..87643857bad 100644 --- a/drivers/scsi/isci/isci.h +++ b/drivers/scsi/isci/isci.h @@ -71,7 +71,6 @@ #include "timers.h" #include "sci_status.h" #include "request.h" -#include "events.h" #include "task.h" #include "sata.h" diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index a5b2565ac5a..666076a2834 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -279,10 +279,8 @@ void isci_port_link_up( * @port: This parameter specifies the isci port with the active link. * */ -void isci_port_link_down( - struct isci_host *isci_host, - struct isci_phy *isci_phy, - struct isci_port *isci_port) +void isci_port_link_down(struct isci_host *isci_host, struct isci_phy *isci_phy, + struct isci_port *isci_port) { struct isci_remote_device *isci_device; @@ -358,9 +356,7 @@ void isci_port_formed( * @port: This parameter specifies the sci port with the active link. * */ -void isci_port_ready( - struct isci_host *isci_host, - struct isci_port *isci_port) +void isci_port_ready(struct isci_host *isci_host, struct isci_port *isci_port) { dev_dbg(&isci_host->pdev->dev, "%s: isci_port = %p\n", __func__, isci_port); @@ -378,9 +374,7 @@ void isci_port_ready( * @port: This parameter specifies the sci port with the active link. * */ -void isci_port_not_ready( - struct isci_host *isci_host, - struct isci_port *isci_port) +void isci_port_not_ready(struct isci_host *isci_host, struct isci_port *isci_port) { dev_dbg(&isci_host->pdev->dev, "%s: isci_port = %p\n", __func__, isci_port); @@ -394,9 +388,8 @@ void isci_port_not_ready( * process. * */ -void isci_port_hard_reset_complete( - struct isci_port *isci_port, - enum sci_status completion_status) +void isci_port_hard_reset_complete(struct isci_port *isci_port, + enum sci_status completion_status) { dev_dbg(&isci_port->isci_host->pdev->dev, "%s: isci_port = %p, completion_status=%x\n", @@ -480,3 +473,35 @@ int isci_port_perform_hard_reset( return ret; } + +/** + * isci_port_invalid_link_up() - This function informs the SCI Core user that + * a phy/link became ready, but the phy is not allowed in the port. In some + * situations the underlying hardware only allows for certain phy to port + * mappings. If these mappings are violated, then this API is invoked. + * @controller: This parameter represents the controller which contains the + * port. + * @port: This parameter specifies the SCI port object for which the callback + * is being invoked. + * @phy: This parameter specifies the phy that came ready, but the phy can't be + * a valid member of the port. + * + */ +void isci_port_invalid_link_up(struct scic_sds_controller *scic, + struct scic_sds_port *sci_port, + struct scic_sds_phy *phy) +{ + struct isci_host *ihost = + (struct isci_host *)sci_object_get_association(scic); + + dev_warn(&ihost->pdev->dev, "Invalid link up!\n"); +} + +void isci_port_stop_complete(struct scic_sds_controller *scic, + struct scic_sds_port *sci_port, + enum sci_status completion_status) +{ + struct isci_host *ihost = sci_object_get_association(scic); + + dev_dbg(&ihost->pdev->dev, "Port stop complete\n"); +} diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index b7a7dd7dca6..dfdd12a0f68 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -147,5 +147,15 @@ int isci_port_perform_hard_reset( struct isci_port *isci_port_ptr, struct isci_phy *isci_phy_ptr); +void isci_port_invalid_link_up( + struct scic_sds_controller *scic, + struct scic_sds_port *sci_port, + struct scic_sds_phy *phy); + +void isci_port_stop_complete( + struct scic_sds_controller *scic, + struct scic_sds_port *sci_port, + enum sci_status completion_status); + #endif /* !defined(_ISCI_PORT_H_) */ -- cgit v1.2.3-70-g09d2 From 4393aa4e6b9517a666f0ef6b774fd421a9dc4c68 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 31 Mar 2011 13:10:44 -0700 Subject: isci: fix fragile/conditional isci_host lookups A domain_device can always reference back to ->lldd_ha unlike local lldd structures. Fix up cases where the driver uses local objects to look up the isci_host. This also changes the calling conventions of some routines to expect a valid isci_host parameter rather than re-lookup the pointer on entry. Incidentally cleans up some macros that are longer to type than the open-coded equivalent: isci_host_from_sas_ha isci_dev_from_domain_dev Signed-off-by: Dan Williams --- drivers/scsi/isci/host.c | 4 +- drivers/scsi/isci/host.h | 13 ++---- drivers/scsi/isci/phy.c | 2 +- drivers/scsi/isci/port.c | 68 +++++++++++------------------- drivers/scsi/isci/port.h | 5 +-- drivers/scsi/isci/remote_device.c | 70 ++++++++----------------------- drivers/scsi/isci/remote_device.h | 62 +++++++--------------------- drivers/scsi/isci/request.c | 2 +- drivers/scsi/isci/task.c | 87 ++++++++++++--------------------------- 9 files changed, 94 insertions(+), 219 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index 79515be5f7c..66449593aa8 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -129,7 +129,7 @@ void isci_host_start_complete(struct isci_host *ihost, enum sci_status completio int isci_host_scan_finished(struct Scsi_Host *shost, unsigned long time) { - struct isci_host *ihost = isci_host_from_sas_ha(SHOST_TO_SAS_HA(shost)); + struct isci_host *ihost = SHOST_TO_SAS_HA(shost)->lldd_ha; if (test_bit(IHOST_START_PENDING, &ihost->flags)) return 0; @@ -149,7 +149,7 @@ int isci_host_scan_finished(struct Scsi_Host *shost, unsigned long time) void isci_host_scan_start(struct Scsi_Host *shost) { - struct isci_host *ihost = isci_host_from_sas_ha(SHOST_TO_SAS_HA(shost)); + struct isci_host *ihost = SHOST_TO_SAS_HA(shost)->lldd_ha; struct scic_sds_controller *scic = ihost->core_controller; unsigned long tmo = scic_controller_get_suggested_start_timeout(scic); diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index d012b69d8d6..8372094ef5a 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -233,15 +233,10 @@ static inline void wait_for_device_stop(struct isci_host *ihost, struct isci_rem wait_event(ihost->eventq, !test_bit(IDEV_STOP_PENDING, &idev->flags)); } -/** - * isci_host_from_sas_ha() - This accessor retrieves the isci_host object - * reference from the Linux sas_ha_struct reference. - * @ha_struct,: This parameter points to the Linux sas_ha_struct object - * - * A reference to the associated isci_host structure. - */ -#define isci_host_from_sas_ha(ha_struct) \ - ((struct isci_host *)(ha_struct)->lldd_ha) +static inline struct isci_host *dev_to_ihost(struct domain_device *dev) +{ + return dev->port->ha->lldd_ha; +} /** * isci_host_scan_finished() - diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c index decc0c05a3d..9e081a4c8a3 100644 --- a/drivers/scsi/isci/phy.c +++ b/drivers/scsi/isci/phy.c @@ -163,7 +163,7 @@ int isci_phy_control(struct asd_sas_phy *sas_phy, return -ENODEV; /* Perform the port reset. */ - ret = isci_port_perform_hard_reset(iport, iphy); + ret = isci_port_perform_hard_reset(ihost, iport, iphy); break; diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 74dc96dc6b1..b675a94f4a7 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -400,55 +400,43 @@ void isci_port_hard_reset_complete(struct isci_port *isci_port, complete_all(&isci_port->hard_reset_complete); } -/** - * isci_port_perform_hard_reset() - This function is one of the SAS Domain - * Template functions. This is a phy management function. - * @isci_port: - * @isci_phy: - * - * status, TMF_RESP_FUNC_COMPLETE indicates success. - */ -int isci_port_perform_hard_reset( - struct isci_port *isci_port, - struct isci_phy *isci_phy) + +int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *iport, + struct isci_phy *iphy) { + unsigned long flags; enum sci_status status; int ret = TMF_RESP_FUNC_COMPLETE; - unsigned long flags; + dev_dbg(&ihost->pdev->dev, "%s: iport = %p\n", + __func__, iport); - dev_dbg(&isci_port->isci_host->pdev->dev, - "%s: isci_port = %p\n", - __func__, isci_port); - - BUG_ON(isci_port == NULL); - - init_completion(&isci_port->hard_reset_complete); + init_completion(&iport->hard_reset_complete); - spin_lock_irqsave(&isci_port->isci_host->scic_lock, flags); + spin_lock_irqsave(&ihost->scic_lock, flags); #define ISCI_PORT_RESET_TIMEOUT SCIC_SDS_SIGNATURE_FIS_TIMEOUT - status = scic_port_hard_reset(isci_port->sci_port_handle, + status = scic_port_hard_reset(iport->sci_port_handle, ISCI_PORT_RESET_TIMEOUT); - spin_unlock_irqrestore(&isci_port->isci_host->scic_lock, flags); + spin_unlock_irqrestore(&ihost->scic_lock, flags); if (status == SCI_SUCCESS) { - wait_for_completion(&isci_port->hard_reset_complete); + wait_for_completion(&iport->hard_reset_complete); - dev_dbg(&isci_port->isci_host->pdev->dev, - "%s: isci_port = %p; hard reset completion\n", - __func__, isci_port); + dev_dbg(&ihost->pdev->dev, + "%s: iport = %p; hard reset completion\n", + __func__, iport); - if (isci_port->hard_reset_status != SCI_SUCCESS) + if (iport->hard_reset_status != SCI_SUCCESS) ret = TMF_RESP_FUNC_FAILED; } else { ret = TMF_RESP_FUNC_FAILED; - dev_err(&isci_port->isci_host->pdev->dev, - "%s: isci_port = %p; scic_port_hard_reset call" + dev_err(&ihost->pdev->dev, + "%s: iport = %p; scic_port_hard_reset call" " failed 0x%x\n", - __func__, isci_port, status); + __func__, iport, status); } @@ -456,19 +444,12 @@ int isci_port_perform_hard_reset( * the same as link failures on all phys in the port. */ if (ret != TMF_RESP_FUNC_COMPLETE) { - BUG_ON(isci_port->isci_host == NULL); - - dev_err(&isci_port->isci_host->pdev->dev, - "%s: isci_port = %p; hard reset failed " + dev_err(&ihost->pdev->dev, + "%s: iport = %p; hard reset failed " "(0x%x) - sending link down to libsas for phy %p\n", - __func__, - isci_port, - isci_port->hard_reset_status, - isci_phy); - - isci_port_link_down(isci_port->isci_host, - isci_phy, - isci_port); + __func__, iport, iport->hard_reset_status, iphy); + + isci_port_link_down(ihost, iphy, iport); } return ret; @@ -491,8 +472,7 @@ void isci_port_invalid_link_up(struct scic_sds_controller *scic, struct scic_sds_port *sci_port, struct scic_sds_phy *phy) { - struct isci_host *ihost = - (struct isci_host *)sci_object_get_association(scic); + struct isci_host *ihost = sci_object_get_association(scic); dev_warn(&ihost->pdev->dev, "Invalid link up!\n"); } diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index dfdd12a0f68..76546fd5b7d 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -143,9 +143,8 @@ void isci_port_hard_reset_complete( struct isci_port *isci_port, enum sci_status completion_status); -int isci_port_perform_hard_reset( - struct isci_port *isci_port_ptr, - struct isci_phy *isci_phy_ptr); +int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *iport, + struct isci_phy *iphy); void isci_port_invalid_link_up( struct scic_sds_controller *scic, diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index 0fdaa6d62c1..ab638ec5881 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -218,33 +218,20 @@ static enum sci_status isci_remote_device_construct( return status; } - -/** - * isci_remote_device_nuke_requests() - This function terminates all requests - * for a given remote device. - * @isci_device: This parameter specifies the remote device - * - */ -void isci_remote_device_nuke_requests( - struct isci_remote_device *isci_device) +void isci_remote_device_nuke_requests(struct isci_host *ihost, struct isci_remote_device *idev) { DECLARE_COMPLETION_ONSTACK(aborted_task_completion); - struct isci_host *isci_host; - isci_host = isci_device->isci_port->isci_host; - - dev_dbg(&isci_host->pdev->dev, - "%s: isci_device = %p\n", __func__, isci_device); + dev_dbg(&ihost->pdev->dev, + "%s: idev = %p\n", __func__, idev); /* Cleanup all requests pending for this device. */ - isci_terminate_pending_requests(isci_host, isci_device, terminating); + isci_terminate_pending_requests(ihost, idev, terminating); - dev_dbg(&isci_host->pdev->dev, - "%s: isci_device = %p, done\n", __func__, isci_device); + dev_dbg(&ihost->pdev->dev, + "%s: idev = %p, done\n", __func__, idev); } - - /** * This function builds the isci_remote_device when a libsas dev_found message * is received. @@ -380,7 +367,7 @@ enum sci_status isci_remote_device_stop(struct isci_host *ihost, struct isci_rem isci_remote_device_change_state(idev, isci_stopping); /* Kill all outstanding requests. */ - isci_remote_device_nuke_requests(idev); + isci_remote_device_nuke_requests(ihost, idev); set_bit(IDEV_STOP_PENDING, &idev->flags); @@ -409,7 +396,7 @@ enum sci_status isci_remote_device_stop(struct isci_host *ihost, struct isci_rem */ void isci_remote_device_gone(struct domain_device *dev) { - struct isci_host *ihost = dev->port->ha->lldd_ha; + struct isci_host *ihost = dev_to_ihost(dev); struct isci_remote_device *idev = dev->lldd_dev; dev_dbg(&ihost->pdev->dev, @@ -431,7 +418,7 @@ void isci_remote_device_gone(struct domain_device *dev) */ int isci_remote_device_found(struct domain_device *domain_dev) { - struct isci_host *isci_host; + struct isci_host *isci_host = dev_to_ihost(domain_dev); struct isci_port *isci_port; struct isci_phy *isci_phy; struct asd_sas_port *sas_port; @@ -439,8 +426,6 @@ int isci_remote_device_found(struct domain_device *domain_dev) struct isci_remote_device *isci_device; enum sci_status status; - isci_host = isci_host_from_sas_ha(domain_dev->port->ha); - dev_dbg(&isci_host->pdev->dev, "%s: domain_device = %p\n", __func__, domain_dev); @@ -556,41 +541,22 @@ bool isci_device_is_reset_pending( * * true if there is a reset pending for the device. */ -void isci_device_clear_reset_pending(struct isci_remote_device *isci_device) +void isci_device_clear_reset_pending(struct isci_host *ihost, struct isci_remote_device *idev) { struct isci_request *isci_request; struct isci_request *tmp_req; - struct isci_host *isci_host = NULL; unsigned long flags = 0; - /* FIXME more port gone confusion, and this time it makes the - * locking "fun" - */ - if (isci_device->isci_port != NULL) - isci_host = isci_device->isci_port->isci_host; - - /* - * FIXME when the isci_host gets sorted out - * use dev_dbg() - */ - pr_debug("%s: isci_device=%p, isci_host=%p\n", - __func__, isci_device, isci_host); + dev_dbg(&ihost->pdev->dev, "%s: idev=%p, ihost=%p\n", + __func__, idev, ihost); - if (isci_host != NULL) - spin_lock_irqsave(&isci_host->scic_lock, flags); - else - pr_err("%s: isci_device %p; isci_host == NULL!\n", - __func__, isci_device); + spin_lock_irqsave(&ihost->scic_lock, flags); /* Clear reset pending on all pending requests. */ list_for_each_entry_safe(isci_request, tmp_req, - &isci_device->reqs_in_process, dev_node) { - /* - * FIXME when the conditional spinlock is gone - * change to dev_dbg() - */ - pr_debug("%s: isci_device = %p request = %p\n", - __func__, isci_device, isci_request); + &idev->reqs_in_process, dev_node) { + dev_dbg(&ihost->pdev->dev, "%s: idev = %p request = %p\n", + __func__, idev, isci_request); if (isci_request->ttype == io_task) { @@ -603,9 +569,7 @@ void isci_device_clear_reset_pending(struct isci_remote_device *isci_device) spin_unlock_irqrestore(&task->task_state_lock, flags2); } } - - if (isci_host != NULL) - spin_unlock_irqrestore(&isci_host->scic_lock, flags); + spin_unlock_irqrestore(&ihost->scic_lock, flags); } /** diff --git a/drivers/scsi/isci/remote_device.h b/drivers/scsi/isci/remote_device.h index cf5302abb8b..9925316ac55 100644 --- a/drivers/scsi/isci/remote_device.h +++ b/drivers/scsi/isci/remote_device.h @@ -78,59 +78,29 @@ static inline struct scic_sds_remote_device *to_sci_dev(struct isci_remote_devic return (struct scic_sds_remote_device *) &idev[1]; } -#define to_isci_remote_device(p) \ - container_of(p, struct isci_remote_device, sci_remote_device); - #define ISCI_REMOTE_DEVICE_START_TIMEOUT 5000 - -/** - * isci_dev_from_domain_dev() - This accessor retrieves the remote_device - * object reference from the Linux domain_device reference. - * @domdev,: This parameter points to the Linux domain_device object . - * - * A reference to the associated isci remote device. - */ -#define isci_dev_from_domain_dev(domdev) \ - ((struct isci_remote_device *)(domdev)->lldd_dev) - -void isci_remote_device_start_complete( - struct isci_host *, - struct isci_remote_device *, - enum sci_status); - -void isci_remote_device_stop_complete( - struct isci_host *, - struct isci_remote_device *, - enum sci_status); - +void isci_remote_device_start_complete(struct isci_host *ihost, + struct isci_remote_device *idev, + enum sci_status); +void isci_remote_device_stop_complete(struct isci_host *ihost, + struct isci_remote_device *idev, + enum sci_status); enum sci_status isci_remote_device_stop(struct isci_host *ihost, struct isci_remote_device *idev); -void isci_remote_device_nuke_requests( - struct isci_remote_device *isci_device); - +void isci_remote_device_nuke_requests(struct isci_host *ihost, + struct isci_remote_device *idev); void isci_remote_device_ready(struct isci_host *ihost, struct isci_remote_device *idev); - void isci_remote_device_not_ready(struct isci_host *ihost, struct isci_remote_device *idev, u32 reason); - -void isci_remote_device_gone( - struct domain_device *domain_dev); - -int isci_remote_device_found( - struct domain_device *domain_dev); - -bool isci_device_is_reset_pending( - struct isci_host *isci_host, - struct isci_remote_device *isci_device); - -void isci_device_clear_reset_pending( - struct isci_remote_device *isci_device); - -void isci_remote_device_change_state( - struct isci_remote_device *isci_device, - enum isci_status status); +void isci_remote_device_gone(struct domain_device *domain_dev); +int isci_remote_device_found(struct domain_device *domain_dev); +bool isci_device_is_reset_pending(struct isci_host *ihost, + struct isci_remote_device *idev); +void isci_device_clear_reset_pending(struct isci_host *ihost, + struct isci_remote_device *idev); +void isci_remote_device_change_state(struct isci_remote_device *idev, + enum isci_status status); #endif /* !defined(_ISCI_REMOTE_DEVICE_H_) */ - diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index b519373597a..37ffedc94ac 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -379,7 +379,7 @@ int isci_request_execute( struct isci_request *request; unsigned long flags; - isci_device = isci_dev_from_domain_dev(task->dev); + isci_device = task->dev->lldd_dev; sci_device = to_sci_dev(isci_device); /* do common allocation and init of request object. */ diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index 5bcea60fd8c..c6c97ad58c9 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -146,7 +146,7 @@ static void isci_task_refuse(struct isci_host *ihost, struct sas_task *task, */ int isci_task_execute_task(struct sas_task *task, int num, gfp_t gfp_flags) { - struct isci_host *ihost = task->dev->port->ha->lldd_ha; + struct isci_host *ihost = dev_to_ihost(task->dev); struct isci_request *request = NULL; struct isci_remote_device *device; unsigned long flags; @@ -169,7 +169,7 @@ int isci_task_execute_task(struct sas_task *task, int num, gfp_t gfp_flags) "task = %p, num = %d; dev = %p; cmd = %p\n", task, num, task->dev, task->uldd_task); - device = isci_dev_from_domain_dev(task->dev); + device = task->dev->lldd_dev; if (device) device_status = device->status; @@ -593,7 +593,6 @@ static void isci_task_build_abort_task_tmf( static struct isci_request *isci_task_get_request_from_task( struct sas_task *task, - struct isci_host **isci_host, struct isci_remote_device **isci_device) { @@ -609,9 +608,6 @@ static struct isci_request *isci_task_get_request_from_task( (task->task_state_flags & SAS_TASK_AT_INITIATOR) && (request != NULL)) { - if (isci_host != NULL) - *isci_host = request->isci_host; - if (isci_device != NULL) *isci_device = request->isci_device; } @@ -1027,26 +1023,17 @@ static int isci_task_send_lu_reset_sas( * * status, zero indicates success. */ -int isci_task_lu_reset( - struct domain_device *domain_device, - u8 *lun) +int isci_task_lu_reset(struct domain_device *domain_device, u8 *lun) { - struct isci_host *isci_host = NULL; + struct isci_host *isci_host = dev_to_ihost(domain_device); struct isci_remote_device *isci_device = NULL; int ret; bool device_stopping = false; - if (domain_device == NULL) { - pr_warn("%s: domain_device == NULL\n", __func__); - return TMF_RESP_FUNC_FAILED; - } - - isci_device = isci_dev_from_domain_dev(domain_device); - - if (domain_device->port != NULL) - isci_host = isci_host_from_sas_ha(domain_device->port->ha); + isci_device = domain_device->lldd_dev; - pr_debug("%s: domain_device=%p, isci_host=%p; isci_device=%p\n", + dev_dbg(&isci_host->pdev->dev, + "%s: domain_device=%p, isci_host=%p; isci_device=%p\n", __func__, domain_device, isci_host, isci_device); if (isci_device != NULL) @@ -1057,24 +1044,18 @@ int isci_task_lu_reset( * device's list, fail this LUN reset request in order to * escalate to the device reset. */ - if ((isci_device == NULL) || - (isci_host == NULL) || - ((isci_host != NULL) && - (isci_device != NULL) && - (device_stopping || - (isci_device_is_reset_pending(isci_host, isci_device))))) { + if (!isci_device || device_stopping || + isci_device_is_reset_pending(isci_host, isci_device)) { dev_warn(&isci_host->pdev->dev, - "%s: No dev (%p), no host (%p), or " + "%s: No dev (%p), or " "RESET PENDING: domain_device=%p\n", - __func__, isci_device, isci_host, domain_device); + __func__, isci_device, domain_device); return TMF_RESP_FUNC_FAILED; } /* Send the task management part of the reset. */ if (sas_protocol_ata(domain_device->tproto)) { - ret = isci_task_send_lu_reset_sata( - isci_host, isci_device, lun - ); + ret = isci_task_send_lu_reset_sata(isci_host, isci_device, lun); } else ret = isci_task_send_lu_reset_sas(isci_host, isci_device, lun); @@ -1173,11 +1154,11 @@ static void isci_abort_task_process_cb( */ int isci_task_abort_task(struct sas_task *task) { + struct isci_host *isci_host = dev_to_ihost(task->dev); DECLARE_COMPLETION_ONSTACK(aborted_io_completion); struct isci_request *old_request = NULL; enum isci_request_status old_state; struct isci_remote_device *isci_device = NULL; - struct isci_host *isci_host = NULL; struct isci_tmf tmf; int ret = TMF_RESP_FUNC_FAILED; unsigned long flags; @@ -1189,8 +1170,7 @@ int isci_task_abort_task(struct sas_task *task) * in the device, because tasks driving resets may land here * after completion in the core. */ - old_request = isci_task_get_request_from_task(task, &isci_host, - &isci_device); + old_request = isci_task_get_request_from_task(task, &isci_device); dev_dbg(&isci_host->pdev->dev, "%s: task = %p\n", __func__, task); @@ -1610,37 +1590,29 @@ u32 isci_task_ssp_request_get_response_data_length( */ int isci_bus_reset_handler(struct scsi_cmnd *cmd) { + struct domain_device *dev = cmd_to_domain_dev(cmd); + struct isci_host *isci_host = dev_to_ihost(dev); unsigned long flags = 0; - struct isci_host *isci_host = NULL; enum sci_status status; int base_status; - struct isci_remote_device *isci_dev - = isci_dev_from_domain_dev( - sdev_to_domain_dev(cmd->device)); + struct isci_remote_device *isci_dev = dev->lldd_dev; - dev_dbg(&cmd->device->sdev_gendev, + dev_dbg(&isci_host->pdev->dev, "%s: cmd %p, isci_dev %p\n", __func__, cmd, isci_dev); if (!isci_dev) { - dev_warn(&cmd->device->sdev_gendev, + dev_warn(&isci_host->pdev->dev, "%s: isci_dev is GONE!\n", __func__); return TMF_RESP_FUNC_COMPLETE; /* Nothing to reset. */ } - if (isci_dev->isci_port != NULL) - isci_host = isci_dev->isci_port->isci_host; - - if (isci_host != NULL) - spin_lock_irqsave(&isci_host->scic_lock, flags); - + spin_lock_irqsave(&isci_host->scic_lock, flags); status = scic_remote_device_reset(to_sci_dev(isci_dev)); if (status != SCI_SUCCESS) { - - if (isci_host != NULL) - spin_unlock_irqrestore(&isci_host->scic_lock, flags); + spin_unlock_irqrestore(&isci_host->scic_lock, flags); scmd_printk(KERN_WARNING, cmd, "%s: scic_remote_device_reset(%p) returned %d!\n", @@ -1648,14 +1620,13 @@ int isci_bus_reset_handler(struct scsi_cmnd *cmd) return TMF_RESP_FUNC_FAILED; } - if (isci_host != NULL) - spin_unlock_irqrestore(&isci_host->scic_lock, flags); + spin_unlock_irqrestore(&isci_host->scic_lock, flags); /* Make sure all pending requests are able to be fully terminated. */ - isci_device_clear_reset_pending(isci_dev); + isci_device_clear_reset_pending(isci_host, isci_dev); /* Terminate in-progress I/O now. */ - isci_remote_device_nuke_requests(isci_dev); + isci_remote_device_nuke_requests(isci_host, isci_dev); /* Call into the libsas default handler (which calls sas_phy_reset). */ base_status = sas_eh_bus_reset_handler(cmd); @@ -1672,13 +1643,9 @@ int isci_bus_reset_handler(struct scsi_cmnd *cmd) } /* WHAT TO DO HERE IF sas_phy_reset FAILS? */ - - if (isci_host != NULL) - spin_lock_irqsave(&isci_host->scic_lock, flags); + spin_lock_irqsave(&isci_host->scic_lock, flags); status = scic_remote_device_reset_complete(to_sci_dev(isci_dev)); - - if (isci_host != NULL) - spin_unlock_irqrestore(&isci_host->scic_lock, flags); + spin_unlock_irqrestore(&isci_host->scic_lock, flags); if (status != SCI_SUCCESS) { scmd_printk(KERN_WARNING, cmd, @@ -1688,7 +1655,7 @@ int isci_bus_reset_handler(struct scsi_cmnd *cmd) } /* WHAT TO DO HERE IF scic_remote_device_reset_complete FAILS? */ - dev_dbg(&cmd->device->sdev_gendev, + dev_dbg(&isci_host->pdev->dev, "%s: cmd %p, isci_dev %p complete.\n", __func__, cmd, isci_dev); -- cgit v1.2.3-70-g09d2 From 88f3b62ac131e2549b6c262cacbd47e8cca42d6e Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 22 Apr 2011 19:18:03 -0700 Subject: isci: move remote_device handling out of the core Now that the core/lldd remote_device data structures are nominally unified merge the corresponding sources into the top-level directory. Also move the remote_node_context infrastructure which has no analog at the lldd level. Signed-off-by: Dan Williams --- drivers/scsi/isci/Makefile | 9 +- drivers/scsi/isci/core/scic_remote_device.h | 282 ---- drivers/scsi/isci/core/scic_sds_controller.c | 3 +- drivers/scsi/isci/core/scic_sds_controller.h | 2 +- drivers/scsi/isci/core/scic_sds_phy.c | 2 +- drivers/scsi/isci/core/scic_sds_port.c | 4 +- drivers/scsi/isci/core/scic_sds_remote_device.c | 1664 -------------------- drivers/scsi/isci/core/scic_sds_remote_device.h | 694 -------- .../scsi/isci/core/scic_sds_remote_node_context.c | 1227 --------------- .../scsi/isci/core/scic_sds_remote_node_context.h | 301 ---- .../scsi/isci/core/scic_sds_remote_node_table.c | 600 ------- .../scsi/isci/core/scic_sds_remote_node_table.h | 195 --- drivers/scsi/isci/core/scic_sds_request.c | 3 +- .../scsi/isci/core/scic_sds_smp_remote_device.c | 315 ---- drivers/scsi/isci/core/scic_sds_smp_request.c | 3 +- .../scsi/isci/core/scic_sds_stp_packet_request.c | 3 +- .../scsi/isci/core/scic_sds_stp_remote_device.c | 818 ---------- drivers/scsi/isci/core/scic_sds_stp_request.c | 3 +- drivers/scsi/isci/core/scu_remote_node_context.h | 229 --- drivers/scsi/isci/host.c | 4 +- drivers/scsi/isci/host.h | 1 - drivers/scsi/isci/init.c | 1 - drivers/scsi/isci/port.c | 1 - drivers/scsi/isci/port.h | 1 + drivers/scsi/isci/probe_roms.c | 1 - drivers/scsi/isci/remote_device.c | 1644 ++++++++++++++++++- drivers/scsi/isci/remote_device.h | 742 ++++++++- drivers/scsi/isci/remote_node_context.c | 1226 ++++++++++++++ drivers/scsi/isci/remote_node_context.h | 301 ++++ drivers/scsi/isci/remote_node_table.c | 600 +++++++ drivers/scsi/isci/remote_node_table.h | 195 +++ drivers/scsi/isci/request.c | 1 - drivers/scsi/isci/sata.c | 3 +- drivers/scsi/isci/scu_remote_node_context.h | 229 +++ drivers/scsi/isci/smp_remote_device.c | 314 ++++ drivers/scsi/isci/stp_remote_device.c | 817 ++++++++++ drivers/scsi/isci/task.c | 5 +- 37 files changed, 6005 insertions(+), 6438 deletions(-) delete mode 100644 drivers/scsi/isci/core/scic_remote_device.h delete mode 100644 drivers/scsi/isci/core/scic_sds_remote_device.c delete mode 100644 drivers/scsi/isci/core/scic_sds_remote_device.h delete mode 100644 drivers/scsi/isci/core/scic_sds_remote_node_context.c delete mode 100644 drivers/scsi/isci/core/scic_sds_remote_node_context.h delete mode 100644 drivers/scsi/isci/core/scic_sds_remote_node_table.c delete mode 100644 drivers/scsi/isci/core/scic_sds_remote_node_table.h delete mode 100644 drivers/scsi/isci/core/scic_sds_smp_remote_device.c delete mode 100644 drivers/scsi/isci/core/scic_sds_stp_remote_device.c delete mode 100644 drivers/scsi/isci/core/scu_remote_node_context.h create mode 100644 drivers/scsi/isci/remote_node_context.c create mode 100644 drivers/scsi/isci/remote_node_context.h create mode 100644 drivers/scsi/isci/remote_node_table.c create mode 100644 drivers/scsi/isci/remote_node_table.h create mode 100644 drivers/scsi/isci/scu_remote_node_context.h create mode 100644 drivers/scsi/isci/smp_remote_device.c create mode 100644 drivers/scsi/isci/stp_remote_device.c (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/Makefile b/drivers/scsi/isci/Makefile index 522e7a7c062..ccc8c53f501 100644 --- a/drivers/scsi/isci/Makefile +++ b/drivers/scsi/isci/Makefile @@ -10,20 +10,19 @@ obj-$(CONFIG_SCSI_ISCI) += isci.o isci-objs := init.o phy.o request.o sata.o \ remote_device.o port.o timers.o \ host.o task.o probe_roms.o \ + stp_remote_device.o \ + smp_remote_device.o \ + remote_node_context.o \ + remote_node_table.o \ core/scic_sds_controller.o \ - core/scic_sds_remote_device.o \ core/scic_sds_request.o \ core/scic_sds_stp_request.o \ core/scic_sds_stp_packet_request.o \ - core/scic_sds_stp_remote_device.o \ core/scic_sds_port.o \ core/scic_sds_port_configuration_agent.o \ core/scic_sds_phy.o \ core/scic_sds_ssp_request.o \ - core/scic_sds_remote_node_context.o \ core/scic_sds_smp_request.o \ - core/scic_sds_smp_remote_device.o \ - core/scic_sds_remote_node_table.o \ core/scic_sds_unsolicited_frame_control.o \ core/sci_base_state_machine.o \ core/sci_util.o diff --git a/drivers/scsi/isci/core/scic_remote_device.h b/drivers/scsi/isci/core/scic_remote_device.h deleted file mode 100644 index 23e90af5a01..00000000000 --- a/drivers/scsi/isci/core/scic_remote_device.h +++ /dev/null @@ -1,282 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef _SCIC_REMOTE_DEVICE_H_ -#define _SCIC_REMOTE_DEVICE_H_ - -/** - * This file contains all of the interface methods that can be called by an - * SCIC user on the device object. - * - * - */ - - -#include "sci_status.h" -#include "intel_sas.h" - -struct scic_sds_port; -struct scic_sds_remote_device; - -/** - * - * - * - */ -enum scic_remote_device_not_ready_reason_code { - SCIC_REMOTE_DEVICE_NOT_READY_START_REQUESTED, - SCIC_REMOTE_DEVICE_NOT_READY_STOP_REQUESTED, - SCIC_REMOTE_DEVICE_NOT_READY_SATA_REQUEST_STARTED, - SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED, - SCIC_REMOTE_DEVICE_NOT_READY_SMP_REQUEST_STARTED, - - SCIC_REMOTE_DEVICE_NOT_READY_REASON_CODE_MAX - -}; - -/** - * scic_remote_device_construct() - This method will perform the construction - * common to all remote device objects. - * @sci_port: SAS/SATA port through which this device is accessed. - * @sci_dev: remote device to construct - * - * It isn't necessary to call scic_remote_device_destruct() for device objects - * that have only called this method for construction. Once subsequent - * construction methods have been invoked (e.g. - * scic_remote_device_da_construct()), then destruction should occur. none - */ -void scic_remote_device_construct(struct scic_sds_port *sci_port, - struct scic_sds_remote_device *sci_dev); - -/** - * scic_remote_device_da_construct() - This method will construct a - * SCIC_REMOTE_DEVICE object for a direct attached (da) device. The - * information (e.g. IAF, Signature FIS, etc.) necessary to build the device - * is known to the SCI Core since it is contained in the scic_phy object. - * @remote_device: This parameter specifies the remote device to be destructed. - * - * The user must have previously called scic_remote_device_construct() Remote - * device objects are a limited resource. As such, they must be protected. - * Thus calls to construct and destruct are mutually exclusive and - * non-reentrant. Indicate if the remote device was successfully constructed. - * SCI_SUCCESS Returned if the device was successfully constructed. - * SCI_FAILURE_DEVICE_EXISTS Returned if the device has already been - * constructed. If it's an additional phy for the target, then call - * scic_remote_device_da_add_phy(). SCI_FAILURE_UNSUPPORTED_PROTOCOL Returned - * if the supplied parameters necessitate creation of a remote device for which - * the protocol is not supported by the underlying controller hardware. - * SCI_FAILURE_INSUFFICIENT_RESOURCES This value is returned if the core - * controller associated with the supplied parameters is unable to support - * additional remote devices. - */ -enum sci_status scic_remote_device_da_construct( - struct scic_sds_remote_device *remote_device); - -/** - * scic_remote_device_ea_construct() - This method will construct an - * SCIC_REMOTE_DEVICE object for an expander attached (ea) device from an - * SMP Discover Response. - * @remote_device: This parameter specifies the remote device to be destructed. - * @discover_response: This parameter specifies the SMP Discovery Response to - * be used in device creation. - * - * The user must have previously called scic_remote_device_construct() Remote - * device objects are a limited resource. As such, they must be protected. - * Thus calls to construct and destruct are mutually exclusive and - * non-reentrant. Indicate if the remote device was successfully constructed. - * SCI_SUCCESS Returned if the device was successfully constructed. - * SCI_FAILURE_DEVICE_EXISTS Returned if the device has already been - * constructed. If it's an additional phy for the target, then call - * scic_ea_remote_device_add_phy(). SCI_FAILURE_UNSUPPORTED_PROTOCOL Returned - * if the supplied parameters necessitate creation of a remote device for which - * the protocol is not supported by the underlying controller hardware. - * SCI_FAILURE_INSUFFICIENT_RESOURCES This value is returned if the core - * controller associated with the supplied parameters is unable to support - * additional remote devices. - */ -enum sci_status scic_remote_device_ea_construct( - struct scic_sds_remote_device *remote_device, - struct smp_response_discover *discover_response); - -/** - * scic_remote_device_destruct() - This method is utilized to free up a core's - * remote device object. - * @remote_device: This parameter specifies the remote device to be destructed. - * - * Remote device objects are a limited resource. As such, they must be - * protected. Thus calls to construct and destruct are mutually exclusive and - * non-reentrant. The return value shall indicate if the device was - * successfully destructed or if some failure occurred. enum sci_status This value - * is returned if the device is successfully destructed. - * SCI_FAILURE_INVALID_REMOTE_DEVICE This value is returned if the supplied - * device isn't valid (e.g. it's already been destoryed, the handle isn't - * valid, etc.). - */ -enum sci_status scic_remote_device_destruct( - struct scic_sds_remote_device *remote_device); - - - - - -/** - * scic_remote_device_start() - This method will start the supplied remote - * device. This method enables normal IO requests to flow through to the - * remote device. - * @remote_device: This parameter specifies the device to be started. - * @timeout: This parameter specifies the number of milliseconds in which the - * start operation should complete. - * - * An indication of whether the device was successfully started. SCI_SUCCESS - * This value is returned if the device was successfully started. - * SCI_FAILURE_INVALID_PHY This value is returned if the user attempts to start - * the device when there have been no phys added to it. - */ -enum sci_status scic_remote_device_start( - struct scic_sds_remote_device *remote_device, - u32 timeout); - -/** - * scic_remote_device_stop() - This method will stop both transmission and - * reception of link activity for the supplied remote device. This method - * disables normal IO requests from flowing through to the remote device. - * @remote_device: This parameter specifies the device to be stopped. - * @timeout: This parameter specifies the number of milliseconds in which the - * stop operation should complete. - * - * An indication of whether the device was successfully stopped. SCI_SUCCESS - * This value is returned if the transmission and reception for the device was - * successfully stopped. - */ -enum sci_status scic_remote_device_stop( - struct scic_sds_remote_device *remote_device, - u32 timeout); - -/** - * scic_remote_device_reset() - This method will reset the device making it - * ready for operation. This method must be called anytime the device is - * reset either through a SMP phy control or a port hard reset request. - * @remote_device: This parameter specifies the device to be reset. - * - * This method does not actually cause the device hardware to be reset. This - * method resets the software object so that it will be operational after a - * device hardware reset completes. An indication of whether the device reset - * was accepted. SCI_SUCCESS This value is returned if the device reset is - * started. - */ -enum sci_status scic_remote_device_reset( - struct scic_sds_remote_device *remote_device); - -/** - * scic_remote_device_reset_complete() - This method informs the device object - * that the reset operation is complete and the device can resume operation - * again. - * @remote_device: This parameter specifies the device which is to be informed - * of the reset complete operation. - * - * An indication that the device is resuming operation. SCI_SUCCESS the device - * is resuming operation. - */ -enum sci_status scic_remote_device_reset_complete( - struct scic_sds_remote_device *remote_device); - - - -/** - * scic_remote_device_get_connection_rate() - This method simply returns the - * link rate at which communications to the remote device occur. - * @remote_device: This parameter specifies the device for which to get the - * connection rate. - * - * Return the link rate at which we transfer for the supplied remote device. - */ -enum sas_linkrate scic_remote_device_get_connection_rate( - struct scic_sds_remote_device *remote_device); - -/** - * scic_remote_device_get_protocols() - This method will indicate which - * protocols are supported by this remote device. - * @remote_device: This parameter specifies the device for which to return the - * protocol. - * @protocols: This parameter specifies the output values, from the remote - * device object, which indicate the protocols supported by the supplied - * remote_device. - * - * The type of protocols supported by this device. The values are returned as - * part of a bit mask in order to allow for multi-protocol support. - */ -void scic_remote_device_get_protocols( - struct scic_sds_remote_device *remote_device, - struct smp_discover_response_protocols *protocols); - - -#if !defined(DISABLE_ATAPI) -/** - * scic_remote_device_is_atapi() - - * @this_device: The device whose type is to be decided. - * - * This method first decide whether a device is a stp target, then decode the - * signature fis of a DA STP device to tell whether it is a standard end disk - * or an ATAPI device. bool Indicate a device is ATAPI device or not. - */ -bool scic_remote_device_is_atapi( - struct scic_sds_remote_device *device_handle); -#else /* !defined(DISABLE_ATAPI) */ -#define scic_remote_device_is_atapi(device_handle) false -#endif /* !defined(DISABLE_ATAPI) */ - - -#endif /* _SCIC_REMOTE_DEVICE_H_ */ - diff --git a/drivers/scsi/isci/core/scic_sds_controller.c b/drivers/scsi/isci/core/scic_sds_controller.c index 63f4cd130d1..c684d9ec8c9 100644 --- a/drivers/scsi/isci/core/scic_sds_controller.c +++ b/drivers/scsi/isci/core/scic_sds_controller.c @@ -57,13 +57,12 @@ #include "scic_controller.h" #include "scic_phy.h" #include "scic_port.h" -#include "scic_remote_device.h" #include "scic_sds_controller.h" #include "scu_registers.h" #include "scic_sds_phy.h" #include "scic_sds_port_configuration_agent.h" #include "scic_sds_port.h" -#include "scic_sds_remote_device.h" +#include "remote_device.h" #include "scic_sds_request.h" #include "sci_environment.h" #include "sci_util.h" diff --git a/drivers/scsi/isci/core/scic_sds_controller.h b/drivers/scsi/isci/core/scic_sds_controller.h index 4bb9a43fbe4..e15c4e2fd76 100644 --- a/drivers/scsi/isci/core/scic_sds_controller.h +++ b/drivers/scsi/isci/core/scic_sds_controller.h @@ -73,7 +73,7 @@ #include "scic_config_parameters.h" #include "scic_sds_port.h" #include "scic_sds_phy.h" -#include "scic_sds_remote_node_table.h" +#include "remote_node_table.h" #include "scu_registers.h" #include "scu_constants.h" #include "scu_remote_node_context.h" diff --git a/drivers/scsi/isci/core/scic_sds_phy.c b/drivers/scsi/isci/core/scic_sds_phy.c index 34bd3b25ccf..09018466f99 100644 --- a/drivers/scsi/isci/core/scic_sds_phy.c +++ b/drivers/scsi/isci/core/scic_sds_phy.c @@ -61,7 +61,7 @@ #include "scic_sds_controller.h" #include "scic_sds_phy.h" #include "scic_sds_port.h" -#include "scic_sds_remote_node_context.h" +#include "remote_node_context.h" #include "sci_environment.h" #include "sci_util.h" #include "scu_event_codes.h" diff --git a/drivers/scsi/isci/core/scic_sds_port.c b/drivers/scsi/isci/core/scic_sds_port.c index a8d7e51bdf7..b07e48e2f18 100644 --- a/drivers/scsi/isci/core/scic_sds_port.c +++ b/drivers/scsi/isci/core/scic_sds_port.c @@ -60,8 +60,8 @@ #include "scic_sds_controller.h" #include "scic_sds_phy.h" #include "scic_sds_port.h" -#include "scic_sds_remote_device.h" -#include "scic_sds_remote_node_context.h" +#include "remote_device.h" +#include "remote_node_context.h" #include "scic_sds_request.h" #include "sci_environment.h" #include "scu_registers.h" diff --git a/drivers/scsi/isci/core/scic_sds_remote_device.c b/drivers/scsi/isci/core/scic_sds_remote_device.c deleted file mode 100644 index d314e2b2088..00000000000 --- a/drivers/scsi/isci/core/scic_sds_remote_device.c +++ /dev/null @@ -1,1664 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "intel_sas.h" -#include "scic_controller.h" -#include "scic_phy.h" -#include "scic_port.h" -#include "scic_remote_device.h" -#include "scic_sds_controller.h" -#include "scic_sds_phy.h" -#include "scic_sds_port.h" -#include "scic_sds_remote_device.h" -#include "scic_sds_remote_node_context.h" -#include "scic_sds_request.h" -#include "sci_environment.h" -#include "sci_util.h" -#include "scu_event_codes.h" - - -#define SCIC_SDS_REMOTE_DEVICE_RESET_TIMEOUT (1000) - -enum sci_status scic_remote_device_da_construct( - struct scic_sds_remote_device *sci_dev) -{ - enum sci_status status; - u16 remote_node_index; - struct sci_sas_identify_address_frame_protocols protocols; - - /* - * This information is request to determine how many remote node context - * entries will be needed to store the remote node. - */ - scic_sds_port_get_attached_protocols(sci_dev->owning_port, &protocols); - sci_dev->target_protocols.u.all = protocols.u.all; - sci_dev->is_direct_attached = true; -#if !defined(DISABLE_ATAPI) - sci_dev->is_atapi = scic_sds_remote_device_is_atapi(sci_dev); -#endif - - status = scic_sds_controller_allocate_remote_node_context( - sci_dev->owning_port->owning_controller, - sci_dev, - &remote_node_index); - - if (status == SCI_SUCCESS) { - sci_dev->rnc.remote_node_index = remote_node_index; - - scic_sds_port_get_attached_sas_address( - sci_dev->owning_port, &sci_dev->device_address); - - if (sci_dev->target_protocols.u.bits.attached_ssp_target) { - sci_dev->has_ready_substate_machine = false; - } else if (sci_dev->target_protocols.u.bits.attached_stp_target) { - sci_dev->has_ready_substate_machine = true; - - sci_base_state_machine_construct( - &sci_dev->ready_substate_machine, - &sci_dev->parent, - scic_sds_stp_remote_device_ready_substate_table, - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE); - } else if (sci_dev->target_protocols.u.bits.attached_smp_target) { - sci_dev->has_ready_substate_machine = true; - - /* add the SMP ready substate machine construction here */ - sci_base_state_machine_construct( - &sci_dev->ready_substate_machine, - &sci_dev->parent, - scic_sds_smp_remote_device_ready_substate_table, - SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE); - } - - sci_dev->connection_rate = scic_sds_port_get_max_allowed_speed( - sci_dev->owning_port); - - /* / @todo Should I assign the port width by reading all of the phys on the port? */ - sci_dev->device_port_width = 1; - } - - return status; -} - - -static void scic_sds_remote_device_get_info_from_smp_discover_response( - struct scic_sds_remote_device *sci_dev, - struct smp_response_discover *discover_response) -{ - /* decode discover_response to set sas_address to sci_dev. */ - sci_dev->device_address.high = - discover_response->attached_sas_address.high; - - sci_dev->device_address.low = - discover_response->attached_sas_address.low; - - sci_dev->target_protocols.u.all = discover_response->protocols.u.all; -} - - -enum sci_status scic_remote_device_ea_construct( - struct scic_sds_remote_device *sci_dev, - struct smp_response_discover *discover_response) -{ - enum sci_status status; - struct scic_sds_controller *scic; - - scic = scic_sds_port_get_controller(sci_dev->owning_port); - - scic_sds_remote_device_get_info_from_smp_discover_response( - sci_dev, discover_response); - - status = scic_sds_controller_allocate_remote_node_context( - scic, sci_dev, &sci_dev->rnc.remote_node_index); - - if (status == SCI_SUCCESS) { - if (sci_dev->target_protocols.u.bits.attached_ssp_target) { - sci_dev->has_ready_substate_machine = false; - } else if (sci_dev->target_protocols.u.bits.attached_smp_target) { - sci_dev->has_ready_substate_machine = true; - - /* add the SMP ready substate machine construction here */ - sci_base_state_machine_construct( - &sci_dev->ready_substate_machine, - &sci_dev->parent, - scic_sds_smp_remote_device_ready_substate_table, - SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE); - } else if (sci_dev->target_protocols.u.bits.attached_stp_target) { - sci_dev->has_ready_substate_machine = true; - - sci_base_state_machine_construct( - &sci_dev->ready_substate_machine, - &sci_dev->parent, - scic_sds_stp_remote_device_ready_substate_table, - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE); - } - - /* - * For SAS-2 the physical link rate is actually a logical link - * rate that incorporates multiplexing. The SCU doesn't - * incorporate multiplexing and for the purposes of the - * connection the logical link rate is that same as the - * physical. Furthermore, the SAS-2 and SAS-1.1 fields overlay - * one another, so this code works for both situations. */ - sci_dev->connection_rate = min_t(u16, - scic_sds_port_get_max_allowed_speed(sci_dev->owning_port), - discover_response->u2.sas1_1.negotiated_physical_link_rate - ); - - /* / @todo Should I assign the port width by reading all of the phys on the port? */ - sci_dev->device_port_width = 1; - } - - return status; -} - -enum sci_status scic_remote_device_destruct( - struct scic_sds_remote_device *sci_dev) -{ - return sci_dev->state_handlers->destruct_handler(sci_dev); -} - - -enum sci_status scic_remote_device_start( - struct scic_sds_remote_device *sci_dev, - u32 timeout) -{ - return sci_dev->state_handlers->start_handler(sci_dev); -} - - -enum sci_status scic_remote_device_stop( - struct scic_sds_remote_device *sci_dev, - u32 timeout) -{ - return sci_dev->state_handlers->stop_handler(sci_dev); -} - - -enum sci_status scic_remote_device_reset( - struct scic_sds_remote_device *sci_dev) -{ - return sci_dev->state_handlers->reset_handler(sci_dev); -} - - -enum sci_status scic_remote_device_reset_complete( - struct scic_sds_remote_device *sci_dev) -{ - return sci_dev->state_handlers->reset_complete_handler(sci_dev); -} - - -enum sas_linkrate scic_remote_device_get_connection_rate( - struct scic_sds_remote_device *sci_dev) -{ - return sci_dev->connection_rate; -} - - -void scic_remote_device_get_protocols( - struct scic_sds_remote_device *sci_dev, - struct smp_discover_response_protocols *pr) -{ - pr->u.all = sci_dev->target_protocols.u.all; -} - -#if !defined(DISABLE_ATAPI) -bool scic_remote_device_is_atapi(struct scic_sds_remote_device *sci_dev) -{ - return sci_dev->is_atapi; -} -#endif - - -/* - * ***************************************************************************** - * * SCU DRIVER STANDARD (SDS) REMOTE DEVICE IMPLEMENTATIONS - * ***************************************************************************** */ - -/** - * - * - * Remote device timer requirements - */ -#define SCIC_SDS_REMOTE_DEVICE_MINIMUM_TIMER_COUNT (0) -#define SCIC_SDS_REMOTE_DEVICE_MAXIMUM_TIMER_COUNT (SCI_MAX_REMOTE_DEVICES) - - -/** - * - * @sci_dev: The remote device for which the suspend is being requested. - * - * This method invokes the remote device suspend state handler. enum sci_status - */ -enum sci_status scic_sds_remote_device_suspend( - struct scic_sds_remote_device *sci_dev, - u32 suspend_type) -{ - return sci_dev->state_handlers->suspend_handler(sci_dev, suspend_type); -} - -/** - * - * @sci_dev: The remote device for which the resume is being requested. - * - * This method invokes the remote device resume state handler. enum sci_status - */ -enum sci_status scic_sds_remote_device_resume( - struct scic_sds_remote_device *sci_dev) -{ - return sci_dev->state_handlers->resume_handler(sci_dev); -} - -/** - * - * @sci_dev: The remote device for which the event handling is being - * requested. - * @frame_index: This is the frame index that is being processed. - * - * This method invokes the frame handler for the remote device state machine - * enum sci_status - */ -enum sci_status scic_sds_remote_device_frame_handler( - struct scic_sds_remote_device *sci_dev, - u32 frame_index) -{ - return sci_dev->state_handlers->frame_handler(sci_dev, frame_index); -} - -/** - * - * @sci_dev: The remote device for which the event handling is being - * requested. - * @event_code: This is the event code that is to be processed. - * - * This method invokes the remote device event handler. enum sci_status - */ -enum sci_status scic_sds_remote_device_event_handler( - struct scic_sds_remote_device *sci_dev, - u32 event_code) -{ - return sci_dev->state_handlers->event_handler(sci_dev, event_code); -} - -/** - * - * @controller: The controller that is starting the io request. - * @sci_dev: The remote device for which the start io handling is being - * requested. - * @io_request: The io request that is being started. - * - * This method invokes the remote device start io handler. enum sci_status - */ -enum sci_status scic_sds_remote_device_start_io( - struct scic_sds_controller *controller, - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *io_request) -{ - return sci_dev->state_handlers->start_io_handler( - sci_dev, io_request); -} - -/** - * - * @controller: The controller that is completing the io request. - * @sci_dev: The remote device for which the complete io handling is being - * requested. - * @io_request: The io request that is being completed. - * - * This method invokes the remote device complete io handler. enum sci_status - */ -enum sci_status scic_sds_remote_device_complete_io( - struct scic_sds_controller *controller, - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *io_request) -{ - return sci_dev->state_handlers->complete_io_handler( - sci_dev, io_request); -} - -/** - * - * @controller: The controller that is starting the task request. - * @sci_dev: The remote device for which the start task handling is being - * requested. - * @io_request: The task request that is being started. - * - * This method invokes the remote device start task handler. enum sci_status - */ -enum sci_status scic_sds_remote_device_start_task( - struct scic_sds_controller *controller, - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *io_request) -{ - return sci_dev->state_handlers->start_task_handler( - sci_dev, io_request); -} - -/** - * - * @controller: The controller that is completing the task request. - * @sci_dev: The remote device for which the complete task handling is - * being requested. - * @io_request: The task request that is being completed. - * - * This method invokes the remote device complete task handler. enum sci_status - */ - -/** - * - * @sci_dev: - * @request: - * - * This method takes the request and bulids an appropriate SCU context for the - * request and then requests the controller to post the request. none - */ -void scic_sds_remote_device_post_request( - struct scic_sds_remote_device *sci_dev, - u32 request) -{ - u32 context; - - context = scic_sds_remote_device_build_command_context(sci_dev, request); - - scic_sds_controller_post_request( - scic_sds_remote_device_get_controller(sci_dev), - context - ); -} - -#if !defined(DISABLE_ATAPI) -/** - * - * @sci_dev: The device to be checked. - * - * This method check the signature fis of a stp device to decide whether a - * device is atapi or not. true if a device is atapi device. False if a device - * is not atapi. - */ -bool scic_sds_remote_device_is_atapi( - struct scic_sds_remote_device *sci_dev) -{ - if (!sci_dev->target_protocols.u.bits.attached_stp_target) - return false; - else if (sci_dev->is_direct_attached) { - struct scic_sds_phy *phy; - struct scic_sata_phy_properties properties; - struct sata_fis_reg_d2h *signature_fis; - phy = scic_sds_port_get_a_connected_phy(sci_dev->owning_port); - scic_sata_phy_get_properties(phy, &properties); - - /* decode the signature fis. */ - signature_fis = &(properties.signature_fis); - - if ((signature_fis->sector_count == 0x01) - && (signature_fis->lba_low == 0x01) - && (signature_fis->lba_mid == 0x14) - && (signature_fis->lba_high == 0xEB) - && ((signature_fis->device & 0x5F) == 0x00) - ) { - /* An ATA device supporting the PACKET command set. */ - return true; - } else - return false; - } else { - /* Expander supported ATAPI device is not currently supported. */ - return false; - } -} -#endif - -/** - * - * @user_parameter: This is cast to a remote device object. - * - * This method is called once the remote node context is ready to be freed. - * The remote device can now report that its stop operation is complete. none - */ -static void scic_sds_cb_remote_device_rnc_destruct_complete( - void *user_parameter) -{ - struct scic_sds_remote_device *sci_dev; - - sci_dev = (struct scic_sds_remote_device *)user_parameter; - - BUG_ON(sci_dev->started_request_count != 0); - - sci_base_state_machine_change_state(&sci_dev->state_machine, - SCI_BASE_REMOTE_DEVICE_STATE_STOPPED); -} - -/** - * - * @user_parameter: This is cast to a remote device object. - * - * This method is called once the remote node context has transisitioned to a - * ready state. This is the indication that the remote device object can also - * transition to ready. none - */ -static void scic_sds_remote_device_resume_complete_handler( - void *user_parameter) -{ - struct scic_sds_remote_device *sci_dev; - - sci_dev = (struct scic_sds_remote_device *)user_parameter; - - if ( - sci_base_state_machine_get_state(&sci_dev->state_machine) - != SCI_BASE_REMOTE_DEVICE_STATE_READY - ) { - sci_base_state_machine_change_state( - &sci_dev->state_machine, - SCI_BASE_REMOTE_DEVICE_STATE_READY - ); - } -} - -/** - * - * @device: This parameter specifies the device for which the request is being - * started. - * @request: This parameter specifies the request being started. - * @status: This parameter specifies the current start operation status. - * - * This method will perform the STP request start processing common to IO - * requests and task requests of all types. none - */ -void scic_sds_remote_device_start_request( - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req, - enum sci_status status) -{ - /* We still have a fault in starting the io complete it on the port */ - if (status == SCI_SUCCESS) - scic_sds_remote_device_increment_request_count(sci_dev); - else{ - sci_dev->owning_port->state_handlers->complete_io_handler( - sci_dev->owning_port, sci_dev, sci_req - ); - } -} - - -/** - * - * @request: This parameter specifies the request being continued. - * - * This method will continue to post tc for a STP request. This method usually - * serves as a callback when RNC gets resumed during a task management - * sequence. none - */ -void scic_sds_remote_device_continue_request(void *dev) -{ - struct scic_sds_remote_device *sci_dev = dev; - - /* we need to check if this request is still valid to continue. */ - if (sci_dev->working_request) - scic_controller_continue_io(sci_dev->working_request); -} - -/** - * - * @user_parameter: This is cast to a remote device object. - * - * This method is called once the remote node context has reached a suspended - * state. The remote device can now report that its suspend operation is - * complete. none - */ - -/** - * This method will terminate all of the IO requests in the controllers IO - * request table that were targeted for this device. - * @sci_dev: This parameter specifies the remote device for which to - * attempt to terminate all requests. - * - * This method returns an indication as to whether all requests were - * successfully terminated. If a single request fails to be terminated, then - * this method will return the failure. - */ -static enum sci_status scic_sds_remote_device_terminate_requests( - struct scic_sds_remote_device *sci_dev) -{ - enum sci_status status = SCI_SUCCESS; - enum sci_status terminate_status = SCI_SUCCESS; - struct scic_sds_request *sci_req; - u32 index; - u32 request_count = sci_dev->started_request_count; - - for (index = 0; - (index < SCI_MAX_IO_REQUESTS) && (request_count > 0); - index++) { - sci_req = sci_dev->owning_port->owning_controller->io_request_table[index]; - - if ((sci_req != NULL) && (sci_req->target_device == sci_dev)) { - terminate_status = scic_controller_terminate_request( - sci_dev->owning_port->owning_controller, - sci_dev, - sci_req - ); - - if (terminate_status != SCI_SUCCESS) - status = terminate_status; - - request_count--; - } - } - - return status; -} - -static enum sci_status -default_device_handler(struct scic_sds_remote_device *sci_dev, - const char *func) -{ - dev_warn(scirdev_to_dev(sci_dev), - "%s: in wrong state: %d\n", func, - sci_base_state_machine_get_state(&sci_dev->state_machine)); - return SCI_FAILURE_INVALID_STATE; -} - -enum sci_status scic_sds_remote_device_default_start_handler( - struct scic_sds_remote_device *sci_dev) -{ - return default_device_handler(sci_dev, __func__); -} - -static enum sci_status scic_sds_remote_device_default_stop_handler( - struct scic_sds_remote_device *sci_dev) -{ - return default_device_handler(sci_dev, __func__); -} - -enum sci_status scic_sds_remote_device_default_fail_handler( - struct scic_sds_remote_device *sci_dev) -{ - return default_device_handler(sci_dev, __func__); -} - -enum sci_status scic_sds_remote_device_default_destruct_handler( - struct scic_sds_remote_device *sci_dev) -{ - return default_device_handler(sci_dev, __func__); -} - -enum sci_status scic_sds_remote_device_default_reset_handler( - struct scic_sds_remote_device *sci_dev) -{ - return default_device_handler(sci_dev, __func__); -} - -enum sci_status scic_sds_remote_device_default_reset_complete_handler( - struct scic_sds_remote_device *sci_dev) -{ - return default_device_handler(sci_dev, __func__); -} - -enum sci_status scic_sds_remote_device_default_suspend_handler( - struct scic_sds_remote_device *sci_dev, u32 suspend_type) -{ - return default_device_handler(sci_dev, __func__); -} - -enum sci_status scic_sds_remote_device_default_resume_handler( - struct scic_sds_remote_device *sci_dev) -{ - return default_device_handler(sci_dev, __func__); -} - -/** - * - * @device: The struct scic_sds_remote_device which is then cast into a - * struct scic_sds_remote_device. - * @event_code: The event code that the struct scic_sds_controller wants the device - * object to process. - * - * This method is the default event handler. It will call the RNC state - * machine handler for any RNC events otherwise it will log a warning and - * returns a failure. enum sci_status SCI_FAILURE_INVALID_STATE - */ -static enum sci_status scic_sds_remote_device_core_event_handler( - struct scic_sds_remote_device *sci_dev, - u32 event_code, - bool is_ready_state) -{ - enum sci_status status; - - switch (scu_get_event_type(event_code)) { - case SCU_EVENT_TYPE_RNC_OPS_MISC: - case SCU_EVENT_TYPE_RNC_SUSPEND_TX: - case SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX: - status = scic_sds_remote_node_context_event_handler(&sci_dev->rnc, event_code); - break; - case SCU_EVENT_TYPE_PTX_SCHEDULE_EVENT: - - if (scu_get_event_code(event_code) == SCU_EVENT_IT_NEXUS_TIMEOUT) { - status = SCI_SUCCESS; - - /* Suspend the associated RNC */ - scic_sds_remote_node_context_suspend(&sci_dev->rnc, - SCI_SOFTWARE_SUSPENSION, - NULL, NULL); - - dev_dbg(scirdev_to_dev(sci_dev), - "%s: device: %p event code: %x: %s\n", - __func__, sci_dev, event_code, - (is_ready_state) - ? "I_T_Nexus_Timeout event" - : "I_T_Nexus_Timeout event in wrong state"); - - break; - } - /* Else, fall through and treat as unhandled... */ - - default: - dev_dbg(scirdev_to_dev(sci_dev), - "%s: device: %p event code: %x: %s\n", - __func__, sci_dev, event_code, - (is_ready_state) - ? "unexpected event" - : "unexpected event in wrong state"); - status = SCI_FAILURE_INVALID_STATE; - break; - } - - return status; -} -/** - * - * @device: The struct scic_sds_remote_device which is then cast into a - * struct scic_sds_remote_device. - * @event_code: The event code that the struct scic_sds_controller wants the device - * object to process. - * - * This method is the default event handler. It will call the RNC state - * machine handler for any RNC events otherwise it will log a warning and - * returns a failure. enum sci_status SCI_FAILURE_INVALID_STATE - */ -static enum sci_status scic_sds_remote_device_default_event_handler( - struct scic_sds_remote_device *sci_dev, - u32 event_code) -{ - return scic_sds_remote_device_core_event_handler(sci_dev, - event_code, - false); -} - -/** - * - * @device: The struct scic_sds_remote_device which is then cast into a - * struct scic_sds_remote_device. - * @frame_index: The frame index for which the struct scic_sds_controller wants this - * device object to process. - * - * This method is the default unsolicited frame handler. It logs a warning, - * releases the frame and returns a failure. enum sci_status - * SCI_FAILURE_INVALID_STATE - */ -enum sci_status scic_sds_remote_device_default_frame_handler( - struct scic_sds_remote_device *sci_dev, - u32 frame_index) -{ - dev_warn(scirdev_to_dev(sci_dev), - "%s: SCIC Remote Device requested to handle frame %x " - "while in wrong state %d\n", - __func__, - frame_index, - sci_base_state_machine_get_state( - &sci_dev->state_machine)); - - /* Return the frame back to the controller */ - scic_sds_controller_release_frame( - scic_sds_remote_device_get_controller(sci_dev), frame_index - ); - - return SCI_FAILURE_INVALID_STATE; -} - -enum sci_status scic_sds_remote_device_default_start_request_handler( - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *request) -{ - return default_device_handler(sci_dev, __func__); -} - -enum sci_status scic_sds_remote_device_default_complete_request_handler( - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *request) -{ - return default_device_handler(sci_dev, __func__); -} - -enum sci_status scic_sds_remote_device_default_continue_request_handler( - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *request) -{ - return default_device_handler(sci_dev, __func__); -} - -/** - * - * @device: The struct scic_sds_remote_device which is then cast into a - * struct scic_sds_remote_device. - * @frame_index: The frame index for which the struct scic_sds_controller wants this - * device object to process. - * - * This method is a general ssp frame handler. In most cases the device object - * needs to route the unsolicited frame processing to the io request object. - * This method decodes the tag for the io request object and routes the - * unsolicited frame to that object. enum sci_status SCI_FAILURE_INVALID_STATE - */ -enum sci_status scic_sds_remote_device_general_frame_handler( - struct scic_sds_remote_device *sci_dev, - u32 frame_index) -{ - enum sci_status result; - struct sci_ssp_frame_header *frame_header; - struct scic_sds_request *io_request; - - result = scic_sds_unsolicited_frame_control_get_header( - &(scic_sds_remote_device_get_controller(sci_dev)->uf_control), - frame_index, - (void **)&frame_header - ); - - if (SCI_SUCCESS == result) { - io_request = scic_sds_controller_get_io_request_from_tag( - scic_sds_remote_device_get_controller(sci_dev), frame_header->tag); - - if ((io_request == NULL) - || (io_request->target_device != sci_dev)) { - /* - * We could not map this tag to a valid IO request - * Just toss the frame and continue */ - scic_sds_controller_release_frame( - scic_sds_remote_device_get_controller(sci_dev), frame_index - ); - } else { - /* The IO request is now in charge of releasing the frame */ - result = io_request->state_handlers->frame_handler( - io_request, frame_index); - } - } - - return result; -} - -/** - * - * @[in]: sci_dev This is the device object that is receiving the event. - * @[in]: event_code The event code to process. - * - * This is a common method for handling events reported to the remote device - * from the controller object. enum sci_status - */ -enum sci_status scic_sds_remote_device_general_event_handler( - struct scic_sds_remote_device *sci_dev, - u32 event_code) -{ - return scic_sds_remote_device_core_event_handler(sci_dev, - event_code, - true); -} - -/* - * ***************************************************************************** - * * STOPPED STATE HANDLERS - * ***************************************************************************** */ - -/** - * - * @device: - * - * This method takes the struct scic_sds_remote_device from a stopped state and - * attempts to start it. The RNC buffer for the device is constructed and the - * device state machine is transitioned to the - * SCIC_BASE_REMOTE_DEVICE_STATE_STARTING. enum sci_status SCI_SUCCESS if there is - * an RNC buffer available to construct the remote device. - * SCI_FAILURE_INSUFFICIENT_RESOURCES if there is no RNC buffer available in - * which to construct the remote device. - */ -static enum sci_status scic_sds_remote_device_stopped_state_start_handler( - struct scic_sds_remote_device *sci_dev) -{ - enum sci_status status; - - status = scic_sds_remote_node_context_resume(&sci_dev->rnc, - scic_sds_remote_device_resume_complete_handler, sci_dev); - - if (status == SCI_SUCCESS) - sci_base_state_machine_change_state(&sci_dev->state_machine, - SCI_BASE_REMOTE_DEVICE_STATE_STARTING); - - return status; -} - -static enum sci_status scic_sds_remote_device_stopped_state_stop_handler( - struct scic_sds_remote_device *sci_dev) -{ - return SCI_SUCCESS; -} - -/** - * - * @sci_dev: The struct scic_sds_remote_device which is cast into a - * struct scic_sds_remote_device. - * - * This method will destruct a struct scic_sds_remote_device that is in a stopped - * state. This is the only state from which a destruct request will succeed. - * The RNi for this struct scic_sds_remote_device is returned to the free pool and the - * device object transitions to the SCI_BASE_REMOTE_DEVICE_STATE_FINAL. - * enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_remote_device_stopped_state_destruct_handler( - struct scic_sds_remote_device *sci_dev) -{ - struct scic_sds_controller *scic; - - scic = scic_sds_remote_device_get_controller(sci_dev); - scic_sds_controller_free_remote_node_context(scic, sci_dev, - sci_dev->rnc.remote_node_index); - sci_dev->rnc.remote_node_index = SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX; - - sci_base_state_machine_change_state(&sci_dev->state_machine, - SCI_BASE_REMOTE_DEVICE_STATE_FINAL); - - return SCI_SUCCESS; -} - -/* - * ***************************************************************************** - * * STARTING STATE HANDLERS - * ***************************************************************************** */ - -static enum sci_status scic_sds_remote_device_starting_state_stop_handler( - struct scic_sds_remote_device *sci_dev) -{ - /* - * This device has not yet started so there had better be no IO requests - */ - BUG_ON(sci_dev->started_request_count != 0); - - /* - * Destroy the remote node context - */ - scic_sds_remote_node_context_destruct(&sci_dev->rnc, - scic_sds_cb_remote_device_rnc_destruct_complete, sci_dev); - - /* - * Transition to the stopping state and wait for the remote node to - * complete being posted and invalidated. - */ - sci_base_state_machine_change_state(&sci_dev->state_machine, - SCI_BASE_REMOTE_DEVICE_STATE_STOPPING); - - return SCI_SUCCESS; -} - -enum sci_status scic_sds_remote_device_ready_state_stop_handler( - struct scic_sds_remote_device *sci_dev) -{ - enum sci_status status = SCI_SUCCESS; - - /* Request the parent state machine to transition to the stopping state */ - sci_base_state_machine_change_state(&sci_dev->state_machine, - SCI_BASE_REMOTE_DEVICE_STATE_STOPPING); - - if (sci_dev->started_request_count == 0) { - scic_sds_remote_node_context_destruct(&sci_dev->rnc, - scic_sds_cb_remote_device_rnc_destruct_complete, - sci_dev); - } else - status = scic_sds_remote_device_terminate_requests(sci_dev); - - return status; -} - -/** - * - * @device: The struct scic_sds_remote_device object which is cast to a - * struct scic_sds_remote_device object. - * - * This is the ready state device reset handler enum sci_status - */ -enum sci_status scic_sds_remote_device_ready_state_reset_handler( - struct scic_sds_remote_device *sci_dev) -{ - /* Request the parent state machine to transition to the stopping state */ - sci_base_state_machine_change_state(&sci_dev->state_machine, - SCI_BASE_REMOTE_DEVICE_STATE_RESETTING); - - return SCI_SUCCESS; -} - -/* - * This method will attempt to start a task request for this device object. The - * remote device object will issue the start request for the task and if - * successful it will start the request for the port object then increment its - * own requet count. enum sci_status SCI_SUCCESS if the task request is started for - * this device object. SCI_FAILURE_INSUFFICIENT_RESOURCES if the io request - * object could not get the resources to start. - */ -static enum sci_status scic_sds_remote_device_ready_state_start_task_handler( - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *request) -{ - enum sci_status result; - - /* See if the port is in a state where we can start the IO request */ - result = scic_sds_port_start_io( - scic_sds_remote_device_get_port(sci_dev), sci_dev, request); - - if (result == SCI_SUCCESS) { - result = scic_sds_remote_node_context_start_task(&sci_dev->rnc, - request); - if (result == SCI_SUCCESS) - result = scic_sds_request_start(request); - - scic_sds_remote_device_start_request(sci_dev, request, result); - } - - return result; -} - -/* - * This method will attempt to start an io request for this device object. The - * remote device object will issue the start request for the io and if - * successful it will start the request for the port object then increment its - * own requet count. enum sci_status SCI_SUCCESS if the io request is started for - * this device object. SCI_FAILURE_INSUFFICIENT_RESOURCES if the io request - * object could not get the resources to start. - */ -static enum sci_status scic_sds_remote_device_ready_state_start_io_handler( - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *request) -{ - enum sci_status result; - - /* See if the port is in a state where we can start the IO request */ - result = scic_sds_port_start_io( - scic_sds_remote_device_get_port(sci_dev), sci_dev, request); - - if (result == SCI_SUCCESS) { - result = scic_sds_remote_node_context_start_io(&sci_dev->rnc, request); - if (result == SCI_SUCCESS) - result = scic_sds_request_start(request); - - scic_sds_remote_device_start_request(sci_dev, request, result); - } - - return result; -} - -/* - * This method will complete the request for the remote device object. The - * method will call the completion handler for the request object and if - * successful it will complete the request on the port object then decrement - * its own started_request_count. enum sci_status - */ -static enum sci_status scic_sds_remote_device_ready_state_complete_request_handler( - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *request) -{ - enum sci_status result; - - result = scic_sds_request_complete(request); - - if (result != SCI_SUCCESS) - return result; - - /* See if the port is in a state - * where we can start the IO request */ - result = scic_sds_port_complete_io( - scic_sds_remote_device_get_port(sci_dev), - sci_dev, request); - - if (result == SCI_SUCCESS) - scic_sds_remote_device_decrement_request_count(sci_dev); - - return result; -} - -/* - * ***************************************************************************** - * * STOPPING STATE HANDLERS - * ***************************************************************************** */ - -/** - * - * @sci_dev: The struct scic_sds_remote_device which is cast into a - * struct scic_sds_remote_device. - * - * This method will stop a struct scic_sds_remote_device that is already in the - * SCI_BASE_REMOTE_DEVICE_STATE_STOPPING state. This is not considered an error - * since we allow a stop request on a device that is alreay stopping or - * stopped. enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_remote_device_stopping_state_stop_handler( - struct scic_sds_remote_device *device) -{ - /* - * All requests should have been terminated, but if there is an - * attempt to stop a device already in the stopping state, then - * try again to terminate. */ - return scic_sds_remote_device_terminate_requests(device); -} - - -/** - * - * @device: The device object for which the request is completing. - * @request: The task request that is being completed. - * - * This method completes requests for this struct scic_sds_remote_device while it is - * in the SCI_BASE_REMOTE_DEVICE_STATE_STOPPING state. This method calls the - * complete method for the request object and if that is successful the port - * object is called to complete the task request. Then the device object itself - * completes the task request. If struct scic_sds_remote_device started_request_count - * goes to 0 and the invalidate RNC request has completed the device object can - * transition to the SCI_BASE_REMOTE_DEVICE_STATE_STOPPED. enum sci_status - */ -static enum sci_status scic_sds_remote_device_stopping_state_complete_request_handler( - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *request) -{ - enum sci_status status = SCI_SUCCESS; - - status = scic_sds_request_complete(request); - - if (status != SCI_SUCCESS) - return status; - - status = scic_sds_port_complete_io(scic_sds_remote_device_get_port(sci_dev), - sci_dev, request); - if (status != SCI_SUCCESS) - return status; - - scic_sds_remote_device_decrement_request_count(sci_dev); - - if (scic_sds_remote_device_get_request_count(sci_dev) == 0) - scic_sds_remote_node_context_destruct(&sci_dev->rnc, - scic_sds_cb_remote_device_rnc_destruct_complete, - sci_dev); - return SCI_SUCCESS; -} - -/** - * - * @device: The struct scic_sds_remote_device which is to be cast into a - * struct scic_sds_remote_device object. - * - * This method will complete the reset operation when the device is in the - * resetting state. enum sci_status - */ -static enum sci_status scic_sds_remote_device_resetting_state_reset_complete_handler( - struct scic_sds_remote_device *sci_dev) -{ - - sci_base_state_machine_change_state( - &sci_dev->state_machine, - SCI_BASE_REMOTE_DEVICE_STATE_READY - ); - - return SCI_SUCCESS; -} - -/** - * - * @device: The struct scic_sds_remote_device which is to be cast into a - * struct scic_sds_remote_device object. - * - * This method will stop the remote device while in the resetting state. - * enum sci_status - */ -static enum sci_status scic_sds_remote_device_resetting_state_stop_handler( - struct scic_sds_remote_device *sci_dev) -{ - sci_base_state_machine_change_state( - &sci_dev->state_machine, - SCI_BASE_REMOTE_DEVICE_STATE_STOPPING - ); - - return SCI_SUCCESS; -} - -/* - * This method completes requests for this struct scic_sds_remote_device while it is - * in the SCI_BASE_REMOTE_DEVICE_STATE_RESETTING state. This method calls the - * complete method for the request object and if that is successful the port - * object is called to complete the task request. Then the device object itself - * completes the task request. enum sci_status - */ -static enum sci_status scic_sds_remote_device_resetting_state_complete_request_handler( - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *request) -{ - enum sci_status status = SCI_SUCCESS; - - status = scic_sds_request_complete(request); - - if (status == SCI_SUCCESS) { - status = scic_sds_port_complete_io( - scic_sds_remote_device_get_port(sci_dev), - sci_dev, request); - - if (status == SCI_SUCCESS) { - scic_sds_remote_device_decrement_request_count(sci_dev); - } - } - - return status; -} - -/* - * ***************************************************************************** - * * FAILED STATE HANDLERS - * ***************************************************************************** */ - -/** - * - * @device: The struct scic_sds_remote_device which is to be cast into a - * struct scic_sds_remote_device object. - * - * This method handles the remove request for a failed struct scic_sds_remote_device - * object. The method will transition the device object to the - * SCIC_BASE_REMOTE_DEVICE_STATE_STOPPING. enum sci_status SCI_SUCCESS - */ - -/* --------------------------------------------------------------------------- */ - -static const struct scic_sds_remote_device_state_handler scic_sds_remote_device_state_handler_table[] = { - [SCI_BASE_REMOTE_DEVICE_STATE_INITIAL] = { - .start_handler = scic_sds_remote_device_default_start_handler, - .stop_handler = scic_sds_remote_device_default_stop_handler, - .fail_handler = scic_sds_remote_device_default_fail_handler, - .destruct_handler = scic_sds_remote_device_default_destruct_handler, - .reset_handler = scic_sds_remote_device_default_reset_handler, - .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, - .start_io_handler = scic_sds_remote_device_default_start_request_handler, - .complete_io_handler = scic_sds_remote_device_default_complete_request_handler, - .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, - .start_task_handler = scic_sds_remote_device_default_start_request_handler, - .complete_task_handler = scic_sds_remote_device_default_complete_request_handler, - .suspend_handler = scic_sds_remote_device_default_suspend_handler, - .resume_handler = scic_sds_remote_device_default_resume_handler, - .event_handler = scic_sds_remote_device_default_event_handler, - .frame_handler = scic_sds_remote_device_default_frame_handler - }, - [SCI_BASE_REMOTE_DEVICE_STATE_STOPPED] = { - .start_handler = scic_sds_remote_device_stopped_state_start_handler, - .stop_handler = scic_sds_remote_device_stopped_state_stop_handler, - .fail_handler = scic_sds_remote_device_default_fail_handler, - .destruct_handler = scic_sds_remote_device_stopped_state_destruct_handler, - .reset_handler = scic_sds_remote_device_default_reset_handler, - .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, - .start_io_handler = scic_sds_remote_device_default_start_request_handler, - .complete_io_handler = scic_sds_remote_device_default_complete_request_handler, - .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, - .start_task_handler = scic_sds_remote_device_default_start_request_handler, - .complete_task_handler = scic_sds_remote_device_default_complete_request_handler, - .suspend_handler = scic_sds_remote_device_default_suspend_handler, - .resume_handler = scic_sds_remote_device_default_resume_handler, - .event_handler = scic_sds_remote_device_default_event_handler, - .frame_handler = scic_sds_remote_device_default_frame_handler - }, - [SCI_BASE_REMOTE_DEVICE_STATE_STARTING] = { - .start_handler = scic_sds_remote_device_default_start_handler, - .stop_handler = scic_sds_remote_device_starting_state_stop_handler, - .fail_handler = scic_sds_remote_device_default_fail_handler, - .destruct_handler = scic_sds_remote_device_default_destruct_handler, - .reset_handler = scic_sds_remote_device_default_reset_handler, - .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, - .start_io_handler = scic_sds_remote_device_default_start_request_handler, - .complete_io_handler = scic_sds_remote_device_default_complete_request_handler, - .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, - .start_task_handler = scic_sds_remote_device_default_start_request_handler, - .complete_task_handler = scic_sds_remote_device_default_complete_request_handler, - .suspend_handler = scic_sds_remote_device_default_suspend_handler, - .resume_handler = scic_sds_remote_device_default_resume_handler, - .event_handler = scic_sds_remote_device_general_event_handler, - .frame_handler = scic_sds_remote_device_default_frame_handler - }, - [SCI_BASE_REMOTE_DEVICE_STATE_READY] = { - .start_handler = scic_sds_remote_device_default_start_handler, - .stop_handler = scic_sds_remote_device_ready_state_stop_handler, - .fail_handler = scic_sds_remote_device_default_fail_handler, - .destruct_handler = scic_sds_remote_device_default_destruct_handler, - .reset_handler = scic_sds_remote_device_ready_state_reset_handler, - .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, - .start_io_handler = scic_sds_remote_device_ready_state_start_io_handler, - .complete_io_handler = scic_sds_remote_device_ready_state_complete_request_handler, - .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, - .start_task_handler = scic_sds_remote_device_ready_state_start_task_handler, - .complete_task_handler = scic_sds_remote_device_ready_state_complete_request_handler, - .suspend_handler = scic_sds_remote_device_default_suspend_handler, - .resume_handler = scic_sds_remote_device_default_resume_handler, - .event_handler = scic_sds_remote_device_general_event_handler, - .frame_handler = scic_sds_remote_device_general_frame_handler, - }, - [SCI_BASE_REMOTE_DEVICE_STATE_STOPPING] = { - .start_handler = scic_sds_remote_device_default_start_handler, - .stop_handler = scic_sds_remote_device_stopping_state_stop_handler, - .fail_handler = scic_sds_remote_device_default_fail_handler, - .destruct_handler = scic_sds_remote_device_default_destruct_handler, - .reset_handler = scic_sds_remote_device_default_reset_handler, - .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, - .start_io_handler = scic_sds_remote_device_default_start_request_handler, - .complete_io_handler = scic_sds_remote_device_stopping_state_complete_request_handler, - .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, - .start_task_handler = scic_sds_remote_device_default_start_request_handler, - .complete_task_handler = scic_sds_remote_device_stopping_state_complete_request_handler, - .suspend_handler = scic_sds_remote_device_default_suspend_handler, - .resume_handler = scic_sds_remote_device_default_resume_handler, - .event_handler = scic_sds_remote_device_general_event_handler, - .frame_handler = scic_sds_remote_device_general_frame_handler - }, - [SCI_BASE_REMOTE_DEVICE_STATE_FAILED] = { - .start_handler = scic_sds_remote_device_default_start_handler, - .stop_handler = scic_sds_remote_device_default_stop_handler, - .fail_handler = scic_sds_remote_device_default_fail_handler, - .destruct_handler = scic_sds_remote_device_default_destruct_handler, - .reset_handler = scic_sds_remote_device_default_reset_handler, - .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, - .start_io_handler = scic_sds_remote_device_default_start_request_handler, - .complete_io_handler = scic_sds_remote_device_default_complete_request_handler, - .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, - .start_task_handler = scic_sds_remote_device_default_start_request_handler, - .complete_task_handler = scic_sds_remote_device_default_complete_request_handler, - .suspend_handler = scic_sds_remote_device_default_suspend_handler, - .resume_handler = scic_sds_remote_device_default_resume_handler, - .event_handler = scic_sds_remote_device_default_event_handler, - .frame_handler = scic_sds_remote_device_general_frame_handler - }, - [SCI_BASE_REMOTE_DEVICE_STATE_RESETTING] = { - .start_handler = scic_sds_remote_device_default_start_handler, - .stop_handler = scic_sds_remote_device_resetting_state_stop_handler, - .fail_handler = scic_sds_remote_device_default_fail_handler, - .destruct_handler = scic_sds_remote_device_default_destruct_handler, - .reset_handler = scic_sds_remote_device_default_reset_handler, - .reset_complete_handler = scic_sds_remote_device_resetting_state_reset_complete_handler, - .start_io_handler = scic_sds_remote_device_default_start_request_handler, - .complete_io_handler = scic_sds_remote_device_resetting_state_complete_request_handler, - .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, - .start_task_handler = scic_sds_remote_device_default_start_request_handler, - .complete_task_handler = scic_sds_remote_device_resetting_state_complete_request_handler, - .suspend_handler = scic_sds_remote_device_default_suspend_handler, - .resume_handler = scic_sds_remote_device_default_resume_handler, - .event_handler = scic_sds_remote_device_default_event_handler, - .frame_handler = scic_sds_remote_device_general_frame_handler - }, - [SCI_BASE_REMOTE_DEVICE_STATE_FINAL] = { - .start_handler = scic_sds_remote_device_default_start_handler, - .stop_handler = scic_sds_remote_device_default_stop_handler, - .fail_handler = scic_sds_remote_device_default_fail_handler, - .destruct_handler = scic_sds_remote_device_default_destruct_handler, - .reset_handler = scic_sds_remote_device_default_reset_handler, - .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, - .start_io_handler = scic_sds_remote_device_default_start_request_handler, - .complete_io_handler = scic_sds_remote_device_default_complete_request_handler, - .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, - .start_task_handler = scic_sds_remote_device_default_start_request_handler, - .complete_task_handler = scic_sds_remote_device_default_complete_request_handler, - .suspend_handler = scic_sds_remote_device_default_suspend_handler, - .resume_handler = scic_sds_remote_device_default_resume_handler, - .event_handler = scic_sds_remote_device_default_event_handler, - .frame_handler = scic_sds_remote_device_default_frame_handler - } -}; - -/** - * - * @object: This is the struct sci_base_object that is cast into a - * struct scic_sds_remote_device. - * - * This is the enter method for the SCI_BASE_REMOTE_DEVICE_STATE_INITIAL it - * immediatly transitions the remote device object to the stopped state. none - */ -static void scic_sds_remote_device_initial_state_enter( - struct sci_base_object *object) -{ - struct scic_sds_remote_device *sci_dev = (struct scic_sds_remote_device *)object; - - sci_dev = container_of(object, typeof(*sci_dev), parent); - SET_STATE_HANDLER(sci_dev, scic_sds_remote_device_state_handler_table, - SCI_BASE_REMOTE_DEVICE_STATE_INITIAL); - - /* Initial state is a transitional state to the stopped state */ - sci_base_state_machine_change_state(&sci_dev->state_machine, - SCI_BASE_REMOTE_DEVICE_STATE_STOPPED); -} - -/** - * - * @object: This is the struct sci_base_object that is cast into a - * struct scic_sds_remote_device. - * - * This is the enter function for the SCI_BASE_REMOTE_DEVICE_STATE_INITIAL it - * sets the stopped state handlers and if this state is entered from the - * SCI_BASE_REMOTE_DEVICE_STATE_STOPPING then the SCI User is informed that the - * device stop is complete. none - */ -static void scic_sds_remote_device_stopped_state_enter( - struct sci_base_object *object) -{ - struct scic_sds_remote_device *sci_dev; - struct scic_sds_controller *scic; - struct isci_remote_device *idev; - struct isci_host *ihost; - u32 prev_state; - - sci_dev = container_of(object, typeof(*sci_dev), parent); - scic = scic_sds_remote_device_get_controller(sci_dev); - ihost = sci_object_get_association(scic); - idev = sci_object_get_association(sci_dev); - - SET_STATE_HANDLER(sci_dev, scic_sds_remote_device_state_handler_table, - SCI_BASE_REMOTE_DEVICE_STATE_STOPPED); - - /* If we are entering from the stopping state let the SCI User know that - * the stop operation has completed. - */ - prev_state = sci_dev->state_machine.previous_state_id; - if (prev_state == SCI_BASE_REMOTE_DEVICE_STATE_STOPPING) - isci_remote_device_stop_complete(ihost, idev, SCI_SUCCESS); - - scic_sds_controller_remote_device_stopped(scic, sci_dev); -} - -/** - * - * @object: This is the struct sci_base_object that is cast into a - * struct scic_sds_remote_device. - * - * This is the enter function for the SCI_BASE_REMOTE_DEVICE_STATE_STARTING it - * sets the starting state handlers, sets the device not ready, and posts the - * remote node context to the hardware. none - */ -static void scic_sds_remote_device_starting_state_enter(struct sci_base_object *object) -{ - struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev), - parent); - struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); - struct isci_host *ihost = sci_object_get_association(scic); - struct isci_remote_device *idev = sci_object_get_association(sci_dev); - - SET_STATE_HANDLER(sci_dev, scic_sds_remote_device_state_handler_table, - SCI_BASE_REMOTE_DEVICE_STATE_STARTING); - - isci_remote_device_not_ready(ihost, idev, - SCIC_REMOTE_DEVICE_NOT_READY_START_REQUESTED); -} - -static void scic_sds_remote_device_starting_state_exit(struct sci_base_object *object) -{ - struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev), - parent); - struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); - struct isci_host *ihost = sci_object_get_association(scic); - struct isci_remote_device *idev = sci_object_get_association(sci_dev); - - /* - * @todo Check the device object for the proper return code for this - * callback - */ - isci_remote_device_start_complete(ihost, idev, SCI_SUCCESS); -} - -/** - * - * @object: This is the struct sci_base_object that is cast into a - * struct scic_sds_remote_device. - * - * This is the enter function for the SCI_BASE_REMOTE_DEVICE_STATE_READY it sets - * the ready state handlers, and starts the ready substate machine. none - */ -static void scic_sds_remote_device_ready_state_enter(struct sci_base_object *object) -{ - struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev), - parent); - struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); - struct isci_host *ihost = sci_object_get_association(scic); - struct isci_remote_device *idev = sci_object_get_association(sci_dev); - - SET_STATE_HANDLER(sci_dev, - scic_sds_remote_device_state_handler_table, - SCI_BASE_REMOTE_DEVICE_STATE_READY); - - scic->remote_device_sequence[sci_dev->rnc.remote_node_index]++; - - if (sci_dev->has_ready_substate_machine) - sci_base_state_machine_start(&sci_dev->ready_substate_machine); - else - isci_remote_device_ready(ihost, idev); -} - -/** - * - * @object: This is the struct sci_base_object that is cast into a - * struct scic_sds_remote_device. - * - * This is the exit function for the SCI_BASE_REMOTE_DEVICE_STATE_READY it does - * nothing. none - */ -static void scic_sds_remote_device_ready_state_exit( - struct sci_base_object *object) -{ - struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev), - parent); - if (sci_dev->has_ready_substate_machine) - sci_base_state_machine_stop(&sci_dev->ready_substate_machine); - else { - struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); - struct isci_host *ihost = sci_object_get_association(scic); - struct isci_remote_device *idev = sci_object_get_association(sci_dev); - - isci_remote_device_not_ready(ihost, idev, - SCIC_REMOTE_DEVICE_NOT_READY_STOP_REQUESTED); - } -} - -/** - * - * @object: This is the struct sci_base_object that is cast into a - * struct scic_sds_remote_device. - * - * This is the enter method for the SCI_BASE_REMOTE_DEVICE_STATE_STOPPING it - * sets the stopping state handlers and posts an RNC invalidate request to the - * SCU hardware. none - */ -static void scic_sds_remote_device_stopping_state_enter( - struct sci_base_object *object) -{ - struct scic_sds_remote_device *sci_dev = (struct scic_sds_remote_device *)object; - - SET_STATE_HANDLER( - sci_dev, - scic_sds_remote_device_state_handler_table, - SCI_BASE_REMOTE_DEVICE_STATE_STOPPING - ); -} - -/** - * - * @object: This is the struct sci_base_object that is cast into a - * struct scic_sds_remote_device. - * - * This is the enter method for the SCI_BASE_REMOTE_DEVICE_STATE_FAILED it sets - * the stopping state handlers. none - */ -static void scic_sds_remote_device_failed_state_enter( - struct sci_base_object *object) -{ - struct scic_sds_remote_device *sci_dev = (struct scic_sds_remote_device *)object; - - SET_STATE_HANDLER( - sci_dev, - scic_sds_remote_device_state_handler_table, - SCI_BASE_REMOTE_DEVICE_STATE_FAILED - ); -} - -/** - * - * @object: This is the struct sci_base_object that is cast into a - * struct scic_sds_remote_device. - * - * This is the enter method for the SCI_BASE_REMOTE_DEVICE_STATE_RESETTING it - * sets the resetting state handlers. none - */ -static void scic_sds_remote_device_resetting_state_enter( - struct sci_base_object *object) -{ - struct scic_sds_remote_device *sci_dev = (struct scic_sds_remote_device *)object; - - SET_STATE_HANDLER( - sci_dev, - scic_sds_remote_device_state_handler_table, - SCI_BASE_REMOTE_DEVICE_STATE_RESETTING - ); - - scic_sds_remote_node_context_suspend( - &sci_dev->rnc, SCI_SOFTWARE_SUSPENSION, NULL, NULL); -} - -/** - * - * @object: This is the struct sci_base_object that is cast into a - * struct scic_sds_remote_device. - * - * This is the exit method for the SCI_BASE_REMOTE_DEVICE_STATE_RESETTING it - * does nothing. none - */ -static void scic_sds_remote_device_resetting_state_exit( - struct sci_base_object *object) -{ - struct scic_sds_remote_device *sci_dev = (struct scic_sds_remote_device *)object; - - scic_sds_remote_node_context_resume(&sci_dev->rnc, NULL, NULL); -} - -/** - * - * @object: This is the struct sci_base_object that is cast into a - * struct scic_sds_remote_device. - * - * This is the enter method for the SCI_BASE_REMOTE_DEVICE_STATE_FINAL it sets - * the final state handlers. none - */ -static void scic_sds_remote_device_final_state_enter( - struct sci_base_object *object) -{ - struct scic_sds_remote_device *sci_dev = (struct scic_sds_remote_device *)object; - - SET_STATE_HANDLER( - sci_dev, - scic_sds_remote_device_state_handler_table, - SCI_BASE_REMOTE_DEVICE_STATE_FINAL - ); -} - -/* --------------------------------------------------------------------------- */ - -static const struct sci_base_state scic_sds_remote_device_state_table[] = { - [SCI_BASE_REMOTE_DEVICE_STATE_INITIAL] = { - .enter_state = scic_sds_remote_device_initial_state_enter, - }, - [SCI_BASE_REMOTE_DEVICE_STATE_STOPPED] = { - .enter_state = scic_sds_remote_device_stopped_state_enter, - }, - [SCI_BASE_REMOTE_DEVICE_STATE_STARTING] = { - .enter_state = scic_sds_remote_device_starting_state_enter, - .exit_state = scic_sds_remote_device_starting_state_exit - }, - [SCI_BASE_REMOTE_DEVICE_STATE_READY] = { - .enter_state = scic_sds_remote_device_ready_state_enter, - .exit_state = scic_sds_remote_device_ready_state_exit - }, - [SCI_BASE_REMOTE_DEVICE_STATE_STOPPING] = { - .enter_state = scic_sds_remote_device_stopping_state_enter, - }, - [SCI_BASE_REMOTE_DEVICE_STATE_FAILED] = { - .enter_state = scic_sds_remote_device_failed_state_enter, - }, - [SCI_BASE_REMOTE_DEVICE_STATE_RESETTING] = { - .enter_state = scic_sds_remote_device_resetting_state_enter, - .exit_state = scic_sds_remote_device_resetting_state_exit - }, - [SCI_BASE_REMOTE_DEVICE_STATE_FINAL] = { - .enter_state = scic_sds_remote_device_final_state_enter, - }, -}; - -void scic_remote_device_construct(struct scic_sds_port *sci_port, - struct scic_sds_remote_device *sci_dev) -{ - sci_dev->owning_port = sci_port; - sci_dev->started_request_count = 0; - sci_dev->parent.private = NULL; - - sci_base_state_machine_construct( - &sci_dev->state_machine, - &sci_dev->parent, - scic_sds_remote_device_state_table, - SCI_BASE_REMOTE_DEVICE_STATE_INITIAL - ); - - sci_base_state_machine_start( - &sci_dev->state_machine - ); - - scic_sds_remote_node_context_construct(&sci_dev->rnc, - SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX); - - sci_object_set_association(&sci_dev->rnc, sci_dev); -} diff --git a/drivers/scsi/isci/core/scic_sds_remote_device.h b/drivers/scsi/isci/core/scic_sds_remote_device.h deleted file mode 100644 index bff44b8b83a..00000000000 --- a/drivers/scsi/isci/core/scic_sds_remote_device.h +++ /dev/null @@ -1,694 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef _SCIC_SDS_REMOTE_DEVICE_H_ -#define _SCIC_SDS_REMOTE_DEVICE_H_ - -#include "intel_sas.h" -#include "scu_remote_node_context.h" -#include "scic_sds_remote_node_context.h" -#include - -/** - * enum scic_sds_remote_device_states - This enumeration depicts all the states - * for the common remote device state machine. - * - * - */ -enum scic_sds_remote_device_states { - /** - * Simply the initial state for the base remote device state machine. - */ - SCI_BASE_REMOTE_DEVICE_STATE_INITIAL, - - /** - * This state indicates that the remote device has successfully been - * stopped. In this state no new IO operations are permitted. - * This state is entered from the INITIAL state. - * This state is entered from the STOPPING state. - */ - SCI_BASE_REMOTE_DEVICE_STATE_STOPPED, - - /** - * This state indicates the the remote device is in the process of - * becoming ready (i.e. starting). In this state no new IO operations - * are permitted. - * This state is entered from the STOPPED state. - */ - SCI_BASE_REMOTE_DEVICE_STATE_STARTING, - - /** - * This state indicates the remote device is now ready. Thus, the user - * is able to perform IO operations on the remote device. - * This state is entered from the STARTING state. - */ - SCI_BASE_REMOTE_DEVICE_STATE_READY, - - /** - * This state indicates that the remote device is in the process of - * stopping. In this state no new IO operations are permitted, but - * existing IO operations are allowed to complete. - * This state is entered from the READY state. - * This state is entered from the FAILED state. - */ - SCI_BASE_REMOTE_DEVICE_STATE_STOPPING, - - /** - * This state indicates that the remote device has failed. - * In this state no new IO operations are permitted. - * This state is entered from the INITIALIZING state. - * This state is entered from the READY state. - */ - SCI_BASE_REMOTE_DEVICE_STATE_FAILED, - - /** - * This state indicates the device is being reset. - * In this state no new IO operations are permitted. - * This state is entered from the READY state. - */ - SCI_BASE_REMOTE_DEVICE_STATE_RESETTING, - - /** - * Simply the final state for the base remote device state machine. - */ - SCI_BASE_REMOTE_DEVICE_STATE_FINAL, -}; - -/** - * enum scic_sds_ssp_remote_device_ready_substates - - * - * This is the enumeration of the ready substates for the - * struct scic_sds_remote_device. - */ -enum scic_sds_ssp_remote_device_ready_substates { - /** - * This is the initial state for the remote device ready substate. - */ - SCIC_SDS_SSP_REMOTE_DEVICE_READY_SUBSTATE_INITIAL, - - /** - * This is the ready operational substate for the remote device. - * This is the normal operational state for a remote device. - */ - SCIC_SDS_SSP_REMOTE_DEVICE_READY_SUBSTATE_OPERATIONAL, - - /** - * This is the suspended state for the remote device. This is the state - * that the device is placed in when a RNC suspend is received by - * the SCU hardware. - */ - SCIC_SDS_SSP_REMOTE_DEVICE_READY_SUBSTATE_SUSPENDED, - - /** - * This is the final state that the device is placed in before a change - * to the base state machine. - */ - SCIC_SDS_SSP_REMOTE_DEVICE_READY_SUBSTATE_FINAL, - - SCIC_SDS_SSP_REMOTE_DEVICE_READY_MAX_SUBSTATES -}; - -/** - * enum scic_sds_stp_remote_device_ready_substates - - * - * This is the enumeration for the struct scic_sds_remote_device ready substates - * for the STP remote device. - */ -enum scic_sds_stp_remote_device_ready_substates { - /** - * This is the idle substate for the stp remote device. When there are no - * active IO for the device it is is in this state. - */ - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE, - - /** - * This is the command state for for the STP remote device. This state is - * entered when the device is processing a non-NCQ command. The device object - * will fail any new start IO requests until this command is complete. - */ - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD, - - /** - * This is the NCQ state for the STP remote device. This state is entered - * when the device is processing an NCQ reuqest. It will remain in this state - * so long as there is one or more NCQ requests being processed. - */ - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ, - - /** - * This is the NCQ error state for the STP remote device. This state is - * entered when an SDB error FIS is received by the device object while in the - * NCQ state. The device object will only accept a READ LOG command while in - * this state. - */ - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR, - -#if !defined(DISABLE_ATAPI) - /** - * This is the ATAPI error state for the STP ATAPI remote device. This state is - * entered when ATAPI device sends error status FIS without data while the device - * object is in CMD state. A suspension event is expected in this state. The device - * object will resume right away. - */ - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_ATAPI_ERROR, -#endif - - /** - * This is the READY substate indicates the device is waiting for the RESET task - * coming to be recovered from certain hardware specific error. - */ - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET, -}; - -/** - * enum scic_sds_smp_remote_device_ready_substates - - * - * This is the enumeration of the ready substates for the SMP REMOTE DEVICE. - */ -enum scic_sds_smp_remote_device_ready_substates { - /** - * This is the ready operational substate for the remote device. This is the - * normal operational state for a remote device. - */ - SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE, - - /** - * This is the suspended state for the remote device. This is the state that - * the device is placed in when a RNC suspend is received by the SCU hardware. - */ - SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD, -}; - -/** - * struct scic_sds_remote_device - This structure contains the data for an SCU - * implementation of the SCU Core device data. - * - * - */ -struct scic_sds_remote_device { - /** - * The field specifies that the parent object for the base remote - * device is the base object itself. - */ - struct sci_base_object parent; - - /** - * This field contains the information for the base remote device state - * machine. - */ - struct sci_base_state_machine state_machine; - - /** - * This field is the programmed device port width. This value is - * written to the RCN data structure to tell the SCU how many open - * connections this device can have. - */ - u32 device_port_width; - - /** - * This field is the programmed connection rate for this remote device. It is - * used to program the TC with the maximum allowed connection rate. - */ - enum sas_linkrate connection_rate; - - /** - * This field contains the allowed target protocols for this remote device. - */ - struct smp_discover_response_protocols target_protocols; - - /** - * This field contains the device SAS address. - */ - struct sci_sas_address device_address; - - /** - * This filed is assinged the value of true if the device is directly - * attached to the port. - */ - bool is_direct_attached; - -#if !defined(DISABLE_ATAPI) - /** - * This filed is assinged the value of true if the device is an ATAPI - * device. - */ - bool is_atapi; -#endif - - /** - * This filed contains a pointer back to the port to which this device - * is assigned. - */ - struct scic_sds_port *owning_port; - - /** - * This field contains the SCU silicon remote node context specific - * information. - */ - struct scic_sds_remote_node_context rnc; - - /** - * This field contains the stated request count for the remote device. The - * device can not reach the SCI_BASE_REMOTE_DEVICE_STATE_STOPPED until all - * requests are complete and the rnc_posted value is false. - */ - u32 started_request_count; - - /** - * This field contains a pointer to the working request object. It is only - * used only for SATA requests since the unsolicited frames we get from the - * hardware have no Tag value to look up the io request object. - */ - struct scic_sds_request *working_request; - - /** - * This field contains the reason for the remote device going not_ready. It is - * assigned in the state handlers and used in the state transition. - */ - u32 not_ready_reason; - - /** - * This field is true if this remote device has an initialzied ready substate - * machine. SSP devices do not have a ready substate machine and STP devices - * have a ready substate machine. - */ - bool has_ready_substate_machine; - - /** - * This field contains the state machine for the ready substate machine for - * this struct scic_sds_remote_device object. - */ - struct sci_base_state_machine ready_substate_machine; - - /** - * This field maintains the set of state handlers for the remote device - * object. These are changed each time the remote device enters a new state. - */ - const struct scic_sds_remote_device_state_handler *state_handlers; -}; - -static inline struct scic_sds_remote_device *rnc_to_dev(struct scic_sds_remote_node_context *rnc) -{ - struct scic_sds_remote_device *sci_dev; - - sci_dev = container_of(rnc, typeof(*sci_dev), rnc); - - return sci_dev; -} - -typedef enum sci_status (*scic_sds_remote_device_request_handler_t)( - struct scic_sds_remote_device *device, - struct scic_sds_request *request); - -typedef enum sci_status (*scic_sds_remote_device_high_priority_request_complete_handler_t)( - struct scic_sds_remote_device *device, - struct scic_sds_request *request, - void *, - enum sci_io_status); - -typedef enum sci_status (*scic_sds_remote_device_handler_t)( - struct scic_sds_remote_device *sci_dev); - -typedef enum sci_status (*scic_sds_remote_device_suspend_handler_t)( - struct scic_sds_remote_device *sci_dev, - u32 suspend_type); - -typedef enum sci_status (*scic_sds_remote_device_resume_handler_t)( - struct scic_sds_remote_device *sci_dev); - -typedef enum sci_status (*scic_sds_remote_device_frame_handler_t)( - struct scic_sds_remote_device *sci_dev, - u32 frame_index); - -typedef enum sci_status (*scic_sds_remote_device_event_handler_t)( - struct scic_sds_remote_device *sci_dev, - u32 event_code); - -typedef void (*scic_sds_remote_device_ready_not_ready_handler_t)( - struct scic_sds_remote_device *sci_dev); - -/** - * struct scic_sds_remote_device_state_handler - This structure conains the - * state handlers that are needed to process requests for the SCU remote - * device objects. - * - * - */ -struct scic_sds_remote_device_state_handler { - /** - * The start_handler specifies the method invoked when a user - * attempts to start a remote device. - */ - scic_sds_remote_device_handler_t start_handler; - - /** - * The stop_handler specifies the method invoked when a user attempts to - * stop a remote device. - */ - scic_sds_remote_device_handler_t stop_handler; - - /** - * The fail_handler specifies the method invoked when a remote device - * failure has occurred. A failure may be due to an inability to - * initialize/configure the device. - */ - scic_sds_remote_device_handler_t fail_handler; - - /** - * The destruct_handler specifies the method invoked when attempting to - * destruct a remote device. - */ - scic_sds_remote_device_handler_t destruct_handler; - - /** - * The reset handler specifies the method invloked when requesting to - * reset a remote device. - */ - scic_sds_remote_device_handler_t reset_handler; - - /** - * The reset complete handler specifies the method invloked when - * reporting that a reset has completed to the remote device. - */ - scic_sds_remote_device_handler_t reset_complete_handler; - - /** - * The start_io_handler specifies the method invoked when a user - * attempts to start an IO request for a remote device. - */ - scic_sds_remote_device_request_handler_t start_io_handler; - - /** - * The complete_io_handler specifies the method invoked when a user - * attempts to complete an IO request for a remote device. - */ - scic_sds_remote_device_request_handler_t complete_io_handler; - - /** - * The continue_io_handler specifies the method invoked when a user - * attempts to continue an IO request for a remote device. - */ - scic_sds_remote_device_request_handler_t continue_io_handler; - - /** - * The start_task_handler specifies the method invoked when a user - * attempts to start a task management request for a remote device. - */ - scic_sds_remote_device_request_handler_t start_task_handler; - - /** - * The complete_task_handler specifies the method invoked when a user - * attempts to complete a task management request for a remote device. - */ - scic_sds_remote_device_request_handler_t complete_task_handler; - - - scic_sds_remote_device_suspend_handler_t suspend_handler; - scic_sds_remote_device_resume_handler_t resume_handler; - scic_sds_remote_device_event_handler_t event_handler; - scic_sds_remote_device_frame_handler_t frame_handler; -}; - -extern const struct sci_base_state scic_sds_ssp_remote_device_ready_substate_table[]; -extern const struct sci_base_state scic_sds_stp_remote_device_ready_substate_table[]; -extern const struct sci_base_state scic_sds_smp_remote_device_ready_substate_table[]; - -/** - * scic_sds_remote_device_increment_request_count() - - * - * This macro incrments the request count for this device - */ -#define scic_sds_remote_device_increment_request_count(sci_dev) \ - ((sci_dev)->started_request_count++) - -/** - * scic_sds_remote_device_decrement_request_count() - - * - * This macro decrements the request count for this device. This count will - * never decrment past 0. - */ -#define scic_sds_remote_device_decrement_request_count(sci_dev) \ - ((sci_dev)->started_request_count > 0 ? \ - (sci_dev)->started_request_count-- : 0) - -/** - * scic_sds_remote_device_get_request_count() - - * - * This is a helper macro to return the current device request count. - */ -#define scic_sds_remote_device_get_request_count(sci_dev) \ - ((sci_dev)->started_request_count) - -/** - * scic_sds_remote_device_get_port() - - * - * This macro returns the owning port of this remote device obejct. - */ -#define scic_sds_remote_device_get_port(sci_dev) \ - ((sci_dev)->owning_port) - -/** - * scic_sds_remote_device_get_controller() - - * - * This macro returns the controller object that contains this device object - */ -#define scic_sds_remote_device_get_controller(sci_dev) \ - scic_sds_port_get_controller(scic_sds_remote_device_get_port(sci_dev)) - -/** - * scic_sds_remote_device_set_state_handlers() - - * - * This macro sets the remote device state handlers pointer and is set on entry - * to each device state. - */ -#define scic_sds_remote_device_set_state_handlers(sci_dev, handlers) \ - ((sci_dev)->state_handlers = (handlers)) - -/** - * scic_sds_remote_device_get_port() - - * - * This macro returns the owning port of this device - */ -#define scic_sds_remote_device_get_port(sci_dev) \ - ((sci_dev)->owning_port) - -/** - * scic_sds_remote_device_get_sequence() - - * - * This macro returns the remote device sequence value - */ -#define scic_sds_remote_device_get_sequence(sci_dev) \ - (\ - scic_sds_remote_device_get_controller(sci_dev)-> \ - remote_device_sequence[(sci_dev)->rnc.remote_node_index] \ - ) - -/** - * scic_sds_remote_device_get_controller_peg() - - * - * This macro returns the controllers protocol engine group - */ -#define scic_sds_remote_device_get_controller_peg(sci_dev) \ - (\ - scic_sds_controller_get_protocol_engine_group(\ - scic_sds_port_get_controller(\ - scic_sds_remote_device_get_port(sci_dev) \ - ) \ - ) \ - ) - -/** - * scic_sds_remote_device_get_port_index() - - * - * This macro returns the port index for the devices owning port - */ -#define scic_sds_remote_device_get_port_index(sci_dev) \ - (scic_sds_port_get_index(scic_sds_remote_device_get_port(sci_dev))) - -/** - * scic_sds_remote_device_get_index() - - * - * This macro returns the remote node index for this device object - */ -#define scic_sds_remote_device_get_index(sci_dev) \ - ((sci_dev)->rnc.remote_node_index) - -/** - * scic_sds_remote_device_build_command_context() - - * - * This macro builds a remote device context for the SCU post request operation - */ -#define scic_sds_remote_device_build_command_context(device, command) \ - ((command) \ - | (scic_sds_remote_device_get_controller_peg((device)) << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) \ - | (scic_sds_remote_device_get_port_index((device)) << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) \ - | (scic_sds_remote_device_get_index((device))) \ - ) - -/** - * scic_sds_remote_device_set_working_request() - - * - * This macro makes the working request assingment for the remote device - * object. To clear the working request use this macro with a NULL request - * object. - */ -#define scic_sds_remote_device_set_working_request(device, request) \ - ((device)->working_request = (request)) - -enum sci_status scic_sds_remote_device_frame_handler( - struct scic_sds_remote_device *sci_dev, - u32 frame_index); - -enum sci_status scic_sds_remote_device_event_handler( - struct scic_sds_remote_device *sci_dev, - u32 event_code); - -enum sci_status scic_sds_remote_device_start_io( - struct scic_sds_controller *controller, - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *io_request); - -enum sci_status scic_sds_remote_device_complete_io( - struct scic_sds_controller *controller, - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *io_request); - -enum sci_status scic_sds_remote_device_resume( - struct scic_sds_remote_device *sci_dev); - -enum sci_status scic_sds_remote_device_suspend( - struct scic_sds_remote_device *sci_dev, - u32 suspend_type); - -enum sci_status scic_sds_remote_device_start_task( - struct scic_sds_controller *controller, - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *io_request); - -void scic_sds_remote_device_post_request( - struct scic_sds_remote_device *sci_dev, - u32 request); - -#if !defined(DISABLE_ATAPI) -bool scic_sds_remote_device_is_atapi( - struct scic_sds_remote_device *sci_dev); -#else /* !defined(DISABLE_ATAPI) */ -#define scic_sds_remote_device_is_atapi(sci_dev) false -#endif /* !defined(DISABLE_ATAPI) */ - -void scic_sds_remote_device_start_request( - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req, - enum sci_status status); - -void scic_sds_remote_device_continue_request(void *sci_dev); - -enum sci_status scic_sds_remote_device_default_start_handler( - struct scic_sds_remote_device *sci_dev); - -enum sci_status scic_sds_remote_device_default_fail_handler( - struct scic_sds_remote_device *sci_dev); - -enum sci_status scic_sds_remote_device_default_destruct_handler( - struct scic_sds_remote_device *sci_dev); - -enum sci_status scic_sds_remote_device_default_reset_handler( - struct scic_sds_remote_device *device); - -enum sci_status scic_sds_remote_device_default_reset_complete_handler( - struct scic_sds_remote_device *device); - -enum sci_status scic_sds_remote_device_default_start_request_handler( - struct scic_sds_remote_device *device, - struct scic_sds_request *request); - -enum sci_status scic_sds_remote_device_default_complete_request_handler( - struct scic_sds_remote_device *device, - struct scic_sds_request *request); - -enum sci_status scic_sds_remote_device_default_continue_request_handler( - struct scic_sds_remote_device *device, - struct scic_sds_request *request); - -enum sci_status scic_sds_remote_device_default_suspend_handler( - struct scic_sds_remote_device *sci_dev, - u32 suspend_type); - -enum sci_status scic_sds_remote_device_default_resume_handler( - struct scic_sds_remote_device *sci_dev); - - -enum sci_status scic_sds_remote_device_default_frame_handler( - struct scic_sds_remote_device *sci_dev, - u32 frame_index); - -enum sci_status scic_sds_remote_device_ready_state_stop_handler( - struct scic_sds_remote_device *device); - -enum sci_status scic_sds_remote_device_ready_state_reset_handler( - struct scic_sds_remote_device *device); - -enum sci_status scic_sds_remote_device_general_frame_handler( - struct scic_sds_remote_device *sci_dev, - u32 frame_index); - -enum sci_status scic_sds_remote_device_general_event_handler( - struct scic_sds_remote_device *sci_dev, - u32 event_code); - -enum sci_status scic_sds_ssp_remote_device_ready_suspended_substate_resume_handler( - struct scic_sds_remote_device *sci_dev); - -#endif /* _SCIC_SDS_REMOTE_DEVICE_H_ */ diff --git a/drivers/scsi/isci/core/scic_sds_remote_node_context.c b/drivers/scsi/isci/core/scic_sds_remote_node_context.c deleted file mode 100644 index e1d58f8854f..00000000000 --- a/drivers/scsi/isci/core/scic_sds_remote_node_context.c +++ /dev/null @@ -1,1227 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "sci_base_state_machine.h" -#include "scic_remote_device.h" -#include "scic_sds_controller.h" -#include "scic_sds_port.h" -#include "scic_sds_remote_device.h" -#include "scic_sds_remote_node_context.h" -#include "sci_environment.h" -#include "sci_util.h" -#include "scu_event_codes.h" -#include "scu_task_context.h" - - -/** - * - * @sci_rnc: The RNC for which the is posted request is being made. - * - * This method will return true if the RNC is not in the initial state. In all - * other states the RNC is considered active and this will return true. The - * destroy request of the state machine drives the RNC back to the initial - * state. If the state machine changes then this routine will also have to be - * changed. bool true if the state machine is not in the initial state false if - * the state machine is in the initial state - */ - -/** - * - * @sci_rnc: The state of the remote node context object to check. - * - * This method will return true if the remote node context is in a READY state - * otherwise it will return false bool true if the remote node context is in - * the ready state. false if the remote node context is not in the ready state. - */ -bool scic_sds_remote_node_context_is_ready( - struct scic_sds_remote_node_context *sci_rnc) -{ - u32 current_state = sci_base_state_machine_get_state(&sci_rnc->state_machine); - - if (current_state == SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE) { - return true; - } - - return false; -} - -/** - * - * @sci_dev: The remote device to use to construct the RNC buffer. - * @rnc: The buffer into which the remote device data will be copied. - * - * This method will construct the RNC buffer for this remote device object. none - */ -static void scic_sds_remote_node_context_construct_buffer( - struct scic_sds_remote_node_context *sci_rnc) -{ - union scu_remote_node_context *rnc; - struct scic_sds_remote_device *sci_dev = rnc_to_dev(sci_rnc); - struct scic_sds_controller *scic; - - scic = scic_sds_remote_device_get_controller(sci_dev); - - rnc = scic_sds_controller_get_remote_node_context_buffer( - scic, sci_rnc->remote_node_index); - - memset(rnc, 0, sizeof(union scu_remote_node_context) - * scic_sds_remote_device_node_count(sci_dev)); - - rnc->ssp.remote_node_index = sci_rnc->remote_node_index; - rnc->ssp.remote_node_port_width = sci_dev->device_port_width; - rnc->ssp.logical_port_index = - scic_sds_remote_device_get_port_index(sci_dev); - - rnc->ssp.remote_sas_address_hi = SCIC_SWAP_DWORD(sci_dev->device_address.high); - rnc->ssp.remote_sas_address_lo = SCIC_SWAP_DWORD(sci_dev->device_address.low); - - rnc->ssp.nexus_loss_timer_enable = true; - rnc->ssp.check_bit = false; - rnc->ssp.is_valid = false; - rnc->ssp.is_remote_node_context = true; - rnc->ssp.function_number = 0; - - rnc->ssp.arbitration_wait_time = 0; - - - if ( - sci_dev->target_protocols.u.bits.attached_sata_device - || sci_dev->target_protocols.u.bits.attached_stp_target - ) { - rnc->ssp.connection_occupancy_timeout = - scic->user_parameters.sds1.stp_max_occupancy_timeout; - rnc->ssp.connection_inactivity_timeout = - scic->user_parameters.sds1.stp_inactivity_timeout; - } else { - rnc->ssp.connection_occupancy_timeout = - scic->user_parameters.sds1.ssp_max_occupancy_timeout; - rnc->ssp.connection_inactivity_timeout = - scic->user_parameters.sds1.ssp_inactivity_timeout; - } - - rnc->ssp.initial_arbitration_wait_time = 0; - - /* Open Address Frame Parameters */ - rnc->ssp.oaf_connection_rate = sci_dev->connection_rate; - rnc->ssp.oaf_features = 0; - rnc->ssp.oaf_source_zone_group = 0; - rnc->ssp.oaf_more_compatibility_features = 0; -} - -/** - * - * @sci_rnc: - * @callback: - * @callback_parameter: - * - * This method will setup the remote node context object so it will transition - * to its ready state. If the remote node context is already setup to - * transition to its final state then this function does nothing. none - */ -static void scic_sds_remote_node_context_setup_to_resume( - struct scic_sds_remote_node_context *sci_rnc, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - if (sci_rnc->destination_state != SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_FINAL) { - sci_rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY; - sci_rnc->user_callback = callback; - sci_rnc->user_cookie = callback_parameter; - } -} - -/** - * - * @sci_rnc: - * @callback: - * @callback_parameter: - * - * This method will setup the remote node context object so it will transistion - * to its final state. none - */ -static void scic_sds_remote_node_context_setup_to_destory( - struct scic_sds_remote_node_context *sci_rnc, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - sci_rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_FINAL; - sci_rnc->user_callback = callback; - sci_rnc->user_cookie = callback_parameter; -} - -/** - * - * @sci_rnc: - * @callback: - * - * This method will continue to resume a remote node context. This is used in - * the states where a resume is requested while a resume is in progress. - */ -static enum sci_status scic_sds_remote_node_context_continue_to_resume_handler( - struct scic_sds_remote_node_context *sci_rnc, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - if (sci_rnc->destination_state == SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY) { - sci_rnc->user_callback = callback; - sci_rnc->user_cookie = callback_parameter; - - return SCI_SUCCESS; - } - - return SCI_FAILURE_INVALID_STATE; -} - -/* --------------------------------------------------------------------------- */ - -static enum sci_status scic_sds_remote_node_context_default_destruct_handler( - struct scic_sds_remote_node_context *sci_rnc, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p requested to stop while " - "in unexpected state %d\n", - __func__, - sci_rnc, - sci_base_state_machine_get_state(&sci_rnc->state_machine)); - - /* - * We have decided that the destruct request on the remote node context can not fail - * since it is either in the initial/destroyed state or is can be destroyed. */ - return SCI_SUCCESS; -} - -static enum sci_status scic_sds_remote_node_context_default_suspend_handler( - struct scic_sds_remote_node_context *sci_rnc, - u32 suspend_type, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p requested to suspend " - "while in wrong state %d\n", - __func__, - sci_rnc, - sci_base_state_machine_get_state(&sci_rnc->state_machine)); - - return SCI_FAILURE_INVALID_STATE; -} - -static enum sci_status scic_sds_remote_node_context_default_resume_handler( - struct scic_sds_remote_node_context *sci_rnc, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p requested to resume " - "while in wrong state %d\n", - __func__, - sci_rnc, - sci_base_state_machine_get_state(&sci_rnc->state_machine)); - - return SCI_FAILURE_INVALID_STATE; -} - -static enum sci_status scic_sds_remote_node_context_default_start_io_handler( - struct scic_sds_remote_node_context *sci_rnc, - struct scic_sds_request *sci_req) -{ - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p requested to start io " - "0x%p while in wrong state %d\n", - __func__, - sci_rnc, - sci_req, - sci_base_state_machine_get_state(&sci_rnc->state_machine)); - - return SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED; -} - -static enum sci_status scic_sds_remote_node_context_default_start_task_handler( - struct scic_sds_remote_node_context *sci_rnc, - struct scic_sds_request *sci_req) -{ - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p requested to start " - "task 0x%p while in wrong state %d\n", - __func__, - sci_rnc, - sci_req, - sci_base_state_machine_get_state(&sci_rnc->state_machine)); - - return SCI_FAILURE; -} - -static enum sci_status scic_sds_remote_node_context_default_event_handler( - struct scic_sds_remote_node_context *sci_rnc, - u32 event_code) -{ - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p requested to process " - "event 0x%x while in wrong state %d\n", - __func__, - sci_rnc, - event_code, - sci_base_state_machine_get_state(&sci_rnc->state_machine)); - - return SCI_FAILURE_INVALID_STATE; -} - -/** - * - * @sci_rnc: The rnc for which the task request is targeted. - * @sci_req: The request which is going to be started. - * - * This method determines if the task request can be started by the SCU - * hardware. When the RNC is in the ready state any task can be started. - * enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_remote_node_context_success_start_task_handler( - struct scic_sds_remote_node_context *sci_rnc, - struct scic_sds_request *sci_req) -{ - return SCI_SUCCESS; -} - -/** - * - * @sci_rnc: - * @callback: - * @callback_parameter: - * - * This method handles destruct calls from the various state handlers. The - * remote node context can be requested to destroy from any state. If there was - * a user callback it is always replaced with the request to destroy user - * callback. enum sci_status - */ -static enum sci_status scic_sds_remote_node_context_general_destruct_handler( - struct scic_sds_remote_node_context *sci_rnc, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - scic_sds_remote_node_context_setup_to_destory( - sci_rnc, callback, callback_parameter - ); - - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE - ); - - return SCI_SUCCESS; -} - -/* --------------------------------------------------------------------------- */ - -static enum sci_status scic_sds_remote_node_context_initial_state_resume_handler( - struct scic_sds_remote_node_context *sci_rnc, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - if (sci_rnc->remote_node_index != SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) { - scic_sds_remote_node_context_setup_to_resume( - sci_rnc, callback, callback_parameter - ); - - scic_sds_remote_node_context_construct_buffer(sci_rnc); - - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE - ); - - return SCI_SUCCESS; - } - - return SCI_FAILURE_INVALID_STATE; -} - -/* --------------------------------------------------------------------------- */ - -static enum sci_status scic_sds_remote_node_context_posting_state_event_handler( - struct scic_sds_remote_node_context *sci_rnc, - u32 event_code) -{ - enum sci_status status; - - switch (scu_get_event_code(event_code)) { - case SCU_EVENT_POST_RNC_COMPLETE: - status = SCI_SUCCESS; - - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE - ); - break; - - default: - status = SCI_FAILURE; - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p requested to " - "process unexpected event 0x%x while in posting " - "state\n", - __func__, - sci_rnc, - event_code); - break; - } - - return status; -} - -/* --------------------------------------------------------------------------- */ - -static enum sci_status scic_sds_remote_node_context_invalidating_state_destruct_handler( - struct scic_sds_remote_node_context *sci_rnc, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - scic_sds_remote_node_context_setup_to_destory( - sci_rnc, callback, callback_parameter - ); - - return SCI_SUCCESS; -} - -static enum sci_status scic_sds_remote_node_context_invalidating_state_event_handler( - struct scic_sds_remote_node_context *sci_rnc, - u32 event_code) -{ - enum sci_status status; - - if (scu_get_event_code(event_code) == SCU_EVENT_POST_RNC_INVALIDATE_COMPLETE) { - status = SCI_SUCCESS; - - if (sci_rnc->destination_state == SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_FINAL) { - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE - ); - } else { - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE - ); - } - } else { - switch (scu_get_event_type(event_code)) { - case SCU_EVENT_TYPE_RNC_SUSPEND_TX: - case SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX: - /* - * We really dont care if the hardware is going to suspend - * the device since it's being invalidated anyway */ - dev_dbg(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p was " - "suspeneded by hardware while being " - "invalidated.\n", - __func__, - sci_rnc); - status = SCI_SUCCESS; - break; - - default: - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p " - "requested to process event 0x%x while " - "in state %d.\n", - __func__, - sci_rnc, - event_code, - sci_base_state_machine_get_state( - &sci_rnc->state_machine)); - status = SCI_FAILURE; - break; - } - } - - return status; -} - -/* --------------------------------------------------------------------------- */ - - -static enum sci_status scic_sds_remote_node_context_resuming_state_event_handler( - struct scic_sds_remote_node_context *sci_rnc, - u32 event_code) -{ - enum sci_status status; - - if (scu_get_event_code(event_code) == SCU_EVENT_POST_RCN_RELEASE) { - status = SCI_SUCCESS; - - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE - ); - } else { - switch (scu_get_event_type(event_code)) { - case SCU_EVENT_TYPE_RNC_SUSPEND_TX: - case SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX: - /* - * We really dont care if the hardware is going to suspend - * the device since it's being resumed anyway */ - dev_dbg(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p was " - "suspeneded by hardware while being resumed.\n", - __func__, - sci_rnc); - status = SCI_SUCCESS; - break; - - default: - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p requested " - "to process event 0x%x while in state %d.\n", - __func__, - sci_rnc, - event_code, - sci_base_state_machine_get_state( - &sci_rnc->state_machine)); - status = SCI_FAILURE; - break; - } - } - - return status; -} - -/* --------------------------------------------------------------------------- */ - -/** - * - * @sci_rnc: The remote node context object being suspended. - * @callback: The callback when the suspension is complete. - * @callback_parameter: The parameter that is to be passed into the callback. - * - * This method will handle the suspend requests from the ready state. - * SCI_SUCCESS - */ -static enum sci_status scic_sds_remote_node_context_ready_state_suspend_handler( - struct scic_sds_remote_node_context *sci_rnc, - u32 suspend_type, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - sci_rnc->user_callback = callback; - sci_rnc->user_cookie = callback_parameter; - sci_rnc->suspension_code = suspend_type; - - if (suspend_type == SCI_SOFTWARE_SUSPENSION) { - scic_sds_remote_device_post_request(rnc_to_dev(sci_rnc), - SCU_CONTEXT_COMMAND_POST_RNC_SUSPEND_TX); - } - - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE - ); - - return SCI_SUCCESS; -} - -/** - * - * @sci_rnc: The rnc for which the io request is targeted. - * @sci_req: The request which is going to be started. - * - * This method determines if the io request can be started by the SCU hardware. - * When the RNC is in the ready state any io request can be started. enum sci_status - * SCI_SUCCESS - */ -static enum sci_status scic_sds_remote_node_context_ready_state_start_io_handler( - struct scic_sds_remote_node_context *sci_rnc, - struct scic_sds_request *sci_req) -{ - return SCI_SUCCESS; -} - - -static enum sci_status scic_sds_remote_node_context_ready_state_event_handler( - struct scic_sds_remote_node_context *sci_rnc, - u32 event_code) -{ - enum sci_status status; - - switch (scu_get_event_type(event_code)) { - case SCU_EVENT_TL_RNC_SUSPEND_TX: - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE - ); - - sci_rnc->suspension_code = scu_get_event_specifier(event_code); - status = SCI_SUCCESS; - break; - - case SCU_EVENT_TL_RNC_SUSPEND_TX_RX: - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE - ); - - sci_rnc->suspension_code = scu_get_event_specifier(event_code); - status = SCI_SUCCESS; - break; - - default: - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p requested to " - "process event 0x%x while in state %d.\n", - __func__, - sci_rnc, - event_code, - sci_base_state_machine_get_state( - &sci_rnc->state_machine)); - - status = SCI_FAILURE; - break; - } - - return status; -} - -/* --------------------------------------------------------------------------- */ - -static enum sci_status scic_sds_remote_node_context_tx_suspended_state_resume_handler( - struct scic_sds_remote_node_context *sci_rnc, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - enum sci_status status; - struct smp_discover_response_protocols protocols; - - scic_sds_remote_node_context_setup_to_resume( - sci_rnc, callback, callback_parameter - ); - - /* TODO: consider adding a resume action of NONE, INVALIDATE, WRITE_TLCR */ - - scic_remote_device_get_protocols(rnc_to_dev(sci_rnc), &protocols); - - if ( - (protocols.u.bits.attached_ssp_target == 1) - || (protocols.u.bits.attached_smp_target == 1) - ) { - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE - ); - - status = SCI_SUCCESS; - } else if (protocols.u.bits.attached_stp_target == 1) { - if (rnc_to_dev(sci_rnc)->is_direct_attached) { - /* @todo Fix this since I am being silly in writing to the STPTLDARNI register. */ - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE - ); - } else { - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE - ); - } - - status = SCI_SUCCESS; - } else { - status = SCI_FAILURE; - } - - return status; -} - -/** - * - * @sci_rnc: The remote node context which is to receive the task request. - * @sci_req: The task request to be transmitted to to the remote target - * device. - * - * This method will report a success or failure attempt to start a new task - * request to the hardware. Since all task requests are sent on the high - * priority queue they can be sent when the RCN is in a TX suspend state. - * enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_remote_node_context_suspended_start_task_handler( - struct scic_sds_remote_node_context *sci_rnc, - struct scic_sds_request *sci_req) -{ - scic_sds_remote_node_context_resume(sci_rnc, NULL, NULL); - - return SCI_SUCCESS; -} - -/* --------------------------------------------------------------------------- */ - -static enum sci_status scic_sds_remote_node_context_tx_rx_suspended_state_resume_handler( - struct scic_sds_remote_node_context *sci_rnc, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - scic_sds_remote_node_context_setup_to_resume( - sci_rnc, callback, callback_parameter - ); - - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE - ); - - return SCI_FAILURE_INVALID_STATE; -} - -/* --------------------------------------------------------------------------- */ - -/** - * - * - * - */ -static enum sci_status scic_sds_remote_node_context_await_suspension_state_resume_handler( - struct scic_sds_remote_node_context *sci_rnc, - scics_sds_remote_node_context_callback callback, - void *callback_parameter) -{ - scic_sds_remote_node_context_setup_to_resume( - sci_rnc, callback, callback_parameter - ); - - return SCI_SUCCESS; -} - -/** - * - * @sci_rnc: The remote node context which is to receive the task request. - * @sci_req: The task request to be transmitted to to the remote target - * device. - * - * This method will report a success or failure attempt to start a new task - * request to the hardware. Since all task requests are sent on the high - * priority queue they can be sent when the RCN is in a TX suspend state. - * enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_remote_node_context_await_suspension_state_start_task_handler( - struct scic_sds_remote_node_context *sci_rnc, - struct scic_sds_request *sci_req) -{ - return SCI_SUCCESS; -} - -static enum sci_status scic_sds_remote_node_context_await_suspension_state_event_handler( - struct scic_sds_remote_node_context *sci_rnc, - u32 event_code) -{ - enum sci_status status; - - switch (scu_get_event_type(event_code)) { - case SCU_EVENT_TL_RNC_SUSPEND_TX: - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE - ); - - sci_rnc->suspension_code = scu_get_event_specifier(event_code); - status = SCI_SUCCESS; - break; - - case SCU_EVENT_TL_RNC_SUSPEND_TX_RX: - sci_base_state_machine_change_state( - &sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE - ); - - sci_rnc->suspension_code = scu_get_event_specifier(event_code); - status = SCI_SUCCESS; - break; - - default: - dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), - "%s: SCIC Remote Node Context 0x%p requested to " - "process event 0x%x while in state %d.\n", - __func__, - sci_rnc, - event_code, - sci_base_state_machine_get_state( - &sci_rnc->state_machine)); - - status = SCI_FAILURE; - break; - } - - return status; -} - -/* --------------------------------------------------------------------------- */ - -static struct scic_sds_remote_node_context_handlers -scic_sds_remote_node_context_state_handler_table[ - SCIC_SDS_REMOTE_NODE_CONTEXT_MAX_STATES] = -{ - /* SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE */ - { - scic_sds_remote_node_context_default_destruct_handler, - scic_sds_remote_node_context_default_suspend_handler, - scic_sds_remote_node_context_initial_state_resume_handler, - scic_sds_remote_node_context_default_start_io_handler, - scic_sds_remote_node_context_default_start_task_handler, - scic_sds_remote_node_context_default_event_handler - }, - /* SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE */ - { - scic_sds_remote_node_context_general_destruct_handler, - scic_sds_remote_node_context_default_suspend_handler, - scic_sds_remote_node_context_continue_to_resume_handler, - scic_sds_remote_node_context_default_start_io_handler, - scic_sds_remote_node_context_default_start_task_handler, - scic_sds_remote_node_context_posting_state_event_handler - }, - /* SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE */ - { - scic_sds_remote_node_context_invalidating_state_destruct_handler, - scic_sds_remote_node_context_default_suspend_handler, - scic_sds_remote_node_context_continue_to_resume_handler, - scic_sds_remote_node_context_default_start_io_handler, - scic_sds_remote_node_context_default_start_task_handler, - scic_sds_remote_node_context_invalidating_state_event_handler - }, - /* SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE */ - { - scic_sds_remote_node_context_general_destruct_handler, - scic_sds_remote_node_context_default_suspend_handler, - scic_sds_remote_node_context_continue_to_resume_handler, - scic_sds_remote_node_context_default_start_io_handler, - scic_sds_remote_node_context_success_start_task_handler, - scic_sds_remote_node_context_resuming_state_event_handler - }, - /* SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE */ - { - scic_sds_remote_node_context_general_destruct_handler, - scic_sds_remote_node_context_ready_state_suspend_handler, - scic_sds_remote_node_context_default_resume_handler, - scic_sds_remote_node_context_ready_state_start_io_handler, - scic_sds_remote_node_context_success_start_task_handler, - scic_sds_remote_node_context_ready_state_event_handler - }, - /* SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE */ - { - scic_sds_remote_node_context_general_destruct_handler, - scic_sds_remote_node_context_default_suspend_handler, - scic_sds_remote_node_context_tx_suspended_state_resume_handler, - scic_sds_remote_node_context_default_start_io_handler, - scic_sds_remote_node_context_suspended_start_task_handler, - scic_sds_remote_node_context_default_event_handler - }, - /* SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE */ - { - scic_sds_remote_node_context_general_destruct_handler, - scic_sds_remote_node_context_default_suspend_handler, - scic_sds_remote_node_context_tx_rx_suspended_state_resume_handler, - scic_sds_remote_node_context_default_start_io_handler, - scic_sds_remote_node_context_suspended_start_task_handler, - scic_sds_remote_node_context_default_event_handler - }, - /* SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE */ - { - scic_sds_remote_node_context_general_destruct_handler, - scic_sds_remote_node_context_default_suspend_handler, - scic_sds_remote_node_context_await_suspension_state_resume_handler, - scic_sds_remote_node_context_default_start_io_handler, - scic_sds_remote_node_context_await_suspension_state_start_task_handler, - scic_sds_remote_node_context_await_suspension_state_event_handler - } -}; - -/* - * ***************************************************************************** - * * REMOTE NODE CONTEXT PRIVATE METHODS - * ***************************************************************************** */ - -/** - * - * - * This method just calls the user callback function and then resets the - * callback. - */ -static void scic_sds_remote_node_context_notify_user( - struct scic_sds_remote_node_context *rnc) -{ - if (rnc->user_callback != NULL) { - (*rnc->user_callback)(rnc->user_cookie); - - rnc->user_callback = NULL; - rnc->user_cookie = NULL; - } -} - -/** - * - * - * This method will continue the remote node context state machine by - * requesting to resume the remote node context state machine from its current - * state. - */ -static void scic_sds_remote_node_context_continue_state_transitions( - struct scic_sds_remote_node_context *rnc) -{ - if (rnc->destination_state == SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY) { - rnc->state_handlers->resume_handler( - rnc, rnc->user_callback, rnc->user_cookie - ); - } -} - -/** - * - * @sci_rnc: The remote node context object that is to be validated. - * - * This method will mark the rnc buffer as being valid and post the request to - * the hardware. none - */ -static void scic_sds_remote_node_context_validate_context_buffer( - struct scic_sds_remote_node_context *sci_rnc) -{ - struct scic_sds_remote_device *sci_dev = rnc_to_dev(sci_rnc); - union scu_remote_node_context *rnc_buffer; - - rnc_buffer = scic_sds_controller_get_remote_node_context_buffer( - scic_sds_remote_device_get_controller(sci_dev), - sci_rnc->remote_node_index - ); - - rnc_buffer->ssp.is_valid = true; - - if (!sci_dev->is_direct_attached && - sci_dev->target_protocols.u.bits.attached_stp_target) { - scic_sds_remote_device_post_request(sci_dev, - SCU_CONTEXT_COMMAND_POST_RNC_96); - } else { - scic_sds_remote_device_post_request(sci_dev, SCU_CONTEXT_COMMAND_POST_RNC_32); - - if (sci_dev->is_direct_attached) { - scic_sds_port_setup_transports(sci_dev->owning_port, - sci_rnc->remote_node_index); - } - } -} - -/** - * - * @sci_rnc: The remote node context object that is to be invalidated. - * - * This method will update the RNC buffer and post the invalidate request. none - */ -static void scic_sds_remote_node_context_invalidate_context_buffer( - struct scic_sds_remote_node_context *sci_rnc) -{ - union scu_remote_node_context *rnc_buffer; - - rnc_buffer = scic_sds_controller_get_remote_node_context_buffer( - scic_sds_remote_device_get_controller(rnc_to_dev(sci_rnc)), - sci_rnc->remote_node_index); - - rnc_buffer->ssp.is_valid = false; - - scic_sds_remote_device_post_request(rnc_to_dev(sci_rnc), - SCU_CONTEXT_COMMAND_POST_RNC_INVALIDATE); -} - -/* - * ***************************************************************************** - * * REMOTE NODE CONTEXT STATE ENTER AND EXIT METHODS - * ***************************************************************************** */ - -/** - * - * - * - */ -static void scic_sds_remote_node_context_initial_state_enter( - struct sci_base_object *object) -{ - struct scic_sds_remote_node_context *rnc; - - rnc = (struct scic_sds_remote_node_context *)object; - - SET_STATE_HANDLER( - rnc, - scic_sds_remote_node_context_state_handler_table, - SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE - ); - - /* - * Check to see if we have gotten back to the initial state because someone - * requested to destroy the remote node context object. */ - if ( - rnc->state_machine.previous_state_id - == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE - ) { - rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; - - scic_sds_remote_node_context_notify_user(rnc); - } -} - -/** - * - * - * - */ -static void scic_sds_remote_node_context_posting_state_enter( - struct sci_base_object *object) -{ - struct scic_sds_remote_node_context *sci_rnc; - - sci_rnc = (struct scic_sds_remote_node_context *)object; - - SET_STATE_HANDLER( - sci_rnc, - scic_sds_remote_node_context_state_handler_table, - SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE - ); - - scic_sds_remote_node_context_validate_context_buffer(sci_rnc); -} - -/** - * - * - * - */ -static void scic_sds_remote_node_context_invalidating_state_enter( - struct sci_base_object *object) -{ - struct scic_sds_remote_node_context *rnc; - - rnc = (struct scic_sds_remote_node_context *)object; - - SET_STATE_HANDLER( - rnc, - scic_sds_remote_node_context_state_handler_table, - SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE - ); - - scic_sds_remote_node_context_invalidate_context_buffer(rnc); -} - -/** - * - * - * - */ -static void scic_sds_remote_node_context_resuming_state_enter( - struct sci_base_object *object) -{ - struct scic_sds_remote_node_context *rnc; - struct smp_discover_response_protocols protocols; - struct scic_sds_remote_device *sci_dev; - - rnc = (struct scic_sds_remote_node_context *)object; - sci_dev = rnc_to_dev(rnc); - - SET_STATE_HANDLER( - rnc, - scic_sds_remote_node_context_state_handler_table, - SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE - ); - - /* - * For direct attached SATA devices we need to clear the TLCR - * NCQ to TCi tag mapping on the phy and in cases where we - * resume because of a target reset we also need to update - * the STPTLDARNI register with the RNi of the device - */ - scic_remote_device_get_protocols(sci_dev, &protocols); - - if (protocols.u.bits.attached_stp_target == 1 && - sci_dev->is_direct_attached) { - scic_sds_port_setup_transports(sci_dev->owning_port, - rnc->remote_node_index); - } - - scic_sds_remote_device_post_request(sci_dev, SCU_CONTEXT_COMMAND_POST_RNC_RESUME); -} - -/** - * - * - * - */ -static void scic_sds_remote_node_context_ready_state_enter( - struct sci_base_object *object) -{ - struct scic_sds_remote_node_context *rnc; - - rnc = (struct scic_sds_remote_node_context *)object; - - SET_STATE_HANDLER( - rnc, - scic_sds_remote_node_context_state_handler_table, - SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE - ); - - rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; - - if (rnc->user_callback != NULL) { - scic_sds_remote_node_context_notify_user(rnc); - } -} - -/** - * - * - * - */ -static void scic_sds_remote_node_context_tx_suspended_state_enter( - struct sci_base_object *object) -{ - struct scic_sds_remote_node_context *rnc; - - rnc = (struct scic_sds_remote_node_context *)object; - - SET_STATE_HANDLER( - rnc, - scic_sds_remote_node_context_state_handler_table, - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE - ); - - scic_sds_remote_node_context_continue_state_transitions(rnc); -} - -/** - * - * - * - */ -static void scic_sds_remote_node_context_tx_rx_suspended_state_enter( - struct sci_base_object *object) -{ - struct scic_sds_remote_node_context *rnc; - - rnc = (struct scic_sds_remote_node_context *)object; - - SET_STATE_HANDLER( - rnc, - scic_sds_remote_node_context_state_handler_table, - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE - ); - - scic_sds_remote_node_context_continue_state_transitions(rnc); -} - -/** - * - * - * - */ -static void scic_sds_remote_node_context_await_suspension_state_enter( - struct sci_base_object *object) -{ - struct scic_sds_remote_node_context *rnc; - - rnc = (struct scic_sds_remote_node_context *)object; - - SET_STATE_HANDLER( - rnc, - scic_sds_remote_node_context_state_handler_table, - SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE - ); -} - -/* --------------------------------------------------------------------------- */ - -static const struct sci_base_state scic_sds_remote_node_context_state_table[] = { - [SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE] = { - .enter_state = scic_sds_remote_node_context_initial_state_enter, - }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE] = { - .enter_state = scic_sds_remote_node_context_posting_state_enter, - }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE] = { - .enter_state = scic_sds_remote_node_context_invalidating_state_enter, - }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE] = { - .enter_state = scic_sds_remote_node_context_resuming_state_enter, - }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE] = { - .enter_state = scic_sds_remote_node_context_ready_state_enter, - }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE] = { - .enter_state = scic_sds_remote_node_context_tx_suspended_state_enter, - }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE] = { - .enter_state = scic_sds_remote_node_context_tx_rx_suspended_state_enter, - }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE] = { - .enter_state = scic_sds_remote_node_context_await_suspension_state_enter, - }, -}; - -void scic_sds_remote_node_context_construct(struct scic_sds_remote_node_context *rnc, - u16 remote_node_index) -{ - memset(rnc, 0, sizeof(struct scic_sds_remote_node_context)); - - rnc->remote_node_index = remote_node_index; - rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; - - sci_base_state_machine_construct( - &rnc->state_machine, - &rnc->parent, - scic_sds_remote_node_context_state_table, - SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE - ); - - sci_base_state_machine_start(&rnc->state_machine); -} diff --git a/drivers/scsi/isci/core/scic_sds_remote_node_context.h b/drivers/scsi/isci/core/scic_sds_remote_node_context.h deleted file mode 100644 index b3f2546090d..00000000000 --- a/drivers/scsi/isci/core/scic_sds_remote_node_context.h +++ /dev/null @@ -1,301 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef _SCIC_SDS_REMOTE_NODE_CONTEXT_H_ -#define _SCIC_SDS_REMOTE_NODE_CONTEXT_H_ - -/** - * This file contains the structures, constants, and prototypes associated with - * the remote node context in the silicon. It exists to model and manage - * the remote node context in the silicon. - * - * - */ - -#include "sci_base_state.h" -#include "sci_base_state_machine.h" - -/** - * - * - * This constant represents an invalid remote device id, it is used to program - * the STPDARNI register so the driver knows when it has received a SIGNATURE - * FIS from the SCU. - */ -#define SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX 0x0FFF - -#define SCU_HARDWARE_SUSPENSION (0) -#define SCI_SOFTWARE_SUSPENSION (1) - -struct scic_sds_request; -struct scic_sds_remote_device; -struct scic_sds_remote_node_context; - -typedef void (*scics_sds_remote_node_context_callback)(void *); - -typedef enum sci_status (*scic_sds_remote_node_context_operation)( - struct scic_sds_remote_node_context *sci_rnc, - scics_sds_remote_node_context_callback callback, - void *callback_parameter - ); - -typedef enum sci_status (*scic_sds_remote_node_context_suspend_operation)( - struct scic_sds_remote_node_context *sci_rnc, - u32 suspension_type, - scics_sds_remote_node_context_callback callback, - void *callback_parameter - ); - -typedef enum sci_status (*scic_sds_remote_node_context_io_request)( - struct scic_sds_remote_node_context *sci_rnc, - struct scic_sds_request *sci_req - ); - -typedef enum sci_status (*scic_sds_remote_node_context_event_handler)( - struct scic_sds_remote_node_context *sci_rnc, - u32 event_code - ); - -struct scic_sds_remote_node_context_handlers { - /** - * This handle is invoked to stop the RNC. The callback is invoked when after - * the hardware notification that the RNC has been invalidated. - */ - scic_sds_remote_node_context_operation destruct_handler; - - /** - * This handler is invoked when there is a request to suspend the RNC. The - * callback is invoked after the hardware notification that the remote node is - * suspended. - */ - scic_sds_remote_node_context_suspend_operation suspend_handler; - - /** - * This handler is invoked when there is a request to resume the RNC. The - * callback is invoked when after the RNC has reached the ready state. - */ - scic_sds_remote_node_context_operation resume_handler; - - /** - * This handler is invoked when there is a request to start an io request - * operation. - */ - scic_sds_remote_node_context_io_request start_io_handler; - - /** - * This handler is invoked when there is a request to start a task request - * operation. - */ - scic_sds_remote_node_context_io_request start_task_handler; - - /** - * This handler is invoked where there is an RNC event that must be processed. - */ - scic_sds_remote_node_context_event_handler event_handler; - -}; - -/** - * This is the enumeration of the remote node context states. - */ -enum scis_sds_remote_node_context_states { - /** - * This state is the initial state for a remote node context. On a resume - * request the remote node context will transition to the posting state. - */ - SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE, - - /** - * This is a transition state that posts the RNi to the hardware. Once the RNC - * is posted the remote node context will be made ready. - */ - SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE, - - /** - * This is a transition state that will post an RNC invalidate to the - * hardware. Once the invalidate is complete the remote node context will - * transition to the posting state. - */ - SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE, - - /** - * This is a transition state that will post an RNC resume to the hardare. - * Once the event notification of resume complete is received the remote node - * context will transition to the ready state. - */ - SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE, - - /** - * This is the state that the remote node context must be in to accept io - * request operations. - */ - SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE, - - /** - * This is the state that the remote node context transitions to when it gets - * a TX suspend notification from the hardware. - */ - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE, - - /** - * This is the state that the remote node context transitions to when it gets - * a TX RX suspend notification from the hardware. - */ - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE, - - /** - * This state is a wait state for the remote node context that waits for a - * suspend notification from the hardware. This state is entered when either - * there is a request to supend the remote node context or when there is a TC - * completion where the remote node will be suspended by the hardware. - */ - SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE, - - SCIC_SDS_REMOTE_NODE_CONTEXT_MAX_STATES - -}; - -/** - * - * - * This enumeration is used to define the end destination state for the remote - * node context. - */ -enum scic_sds_remote_node_context_destination_state { - SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED, - SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY, - SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_FINAL -}; - -/** - * struct scic_sds_remote_node_context - This structure contains the data - * associated with the remote node context object. The remote node context - * (RNC) object models the the remote device information necessary to manage - * the silicon RNC. - */ -struct scic_sds_remote_node_context { - /* - * parent object - */ - struct sci_base_object parent; - - /** - * This field indicates the remote node index (RNI) associated with - * this RNC. - */ - u16 remote_node_index; - - /** - * This field is the recored suspension code or the reason for the remote node - * context suspension. - */ - u32 suspension_code; - - /** - * This field is true if the remote node context is resuming from its current - * state. This can cause an automatic resume on receiving a suspension - * notification. - */ - enum scic_sds_remote_node_context_destination_state destination_state; - - /** - * This field contains the callback function that the user requested to be - * called when the requested state transition is complete. - */ - scics_sds_remote_node_context_callback user_callback; - - /** - * This field contains the parameter that is called when the user requested - * state transition is completed. - */ - void *user_cookie; - - /** - * This field contains the data for the object's state machine. - */ - struct sci_base_state_machine state_machine; - - struct scic_sds_remote_node_context_handlers *state_handlers; -}; - -void scic_sds_remote_node_context_construct(struct scic_sds_remote_node_context *rnc, - u16 remote_node_index); - - -bool scic_sds_remote_node_context_is_ready( - struct scic_sds_remote_node_context *sci_rnc); - -#define scic_sds_remote_node_context_get_remote_node_index(rcn) \ - ((rnc)->remote_node_index) - -#define scic_sds_remote_node_context_event_handler(rnc, event_code) \ - ((rnc)->state_handlers->event_handler(rnc, event_code)) - -#define scic_sds_remote_node_context_resume(rnc, callback, parameter) \ - ((rnc)->state_handlers->resume_handler(rnc, callback, parameter)) - -#define scic_sds_remote_node_context_suspend(rnc, suspend_type, callback, parameter) \ - ((rnc)->state_handlers->suspend_handler(rnc, suspend_type, callback, parameter)) - -#define scic_sds_remote_node_context_destruct(rnc, callback, parameter) \ - ((rnc)->state_handlers->destruct_handler(rnc, callback, parameter)) - -#define scic_sds_remote_node_context_start_io(rnc, request) \ - ((rnc)->state_handlers->start_io_handler(rnc, request)) - -#define scic_sds_remote_node_context_start_task(rnc, task) \ - ((rnc)->state_handlers->start_task_handler(rnc, task)) - -#endif /* _SCIC_SDS_REMOTE_NODE_CONTEXT_H_ */ diff --git a/drivers/scsi/isci/core/scic_sds_remote_node_table.c b/drivers/scsi/isci/core/scic_sds_remote_node_table.c deleted file mode 100644 index 77919a2cf65..00000000000 --- a/drivers/scsi/isci/core/scic_sds_remote_node_table.c +++ /dev/null @@ -1,600 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -/** - * This file contains the implementation of the SCIC_SDS_REMOTE_NODE_TABLE - * public, protected, and private methods. - * - * - */ -#include "sci_util.h" -#include "sci_environment.h" -#include "scic_sds_remote_node_table.h" -#include "scic_sds_remote_node_context.h" - -/** - * - * @remote_node_table: This is the remote node index table from which the - * selection will be made. - * @group_table_index: This is the index to the group table from which to - * search for an available selection. - * - * This routine will find the bit position in absolute bit terms of the next 32 - * + bit position. If there are available bits in the first u32 then it is - * just bit position. u32 This is the absolute bit position for an available - * group. - */ -static u32 scic_sds_remote_node_table_get_group_index( - struct scic_remote_node_table *remote_node_table, - u32 group_table_index) -{ - u32 dword_index; - u32 *group_table; - u32 bit_index; - - group_table = remote_node_table->remote_node_groups[group_table_index]; - - for (dword_index = 0; dword_index < remote_node_table->group_array_size; dword_index++) { - if (group_table[dword_index] != 0) { - for (bit_index = 0; bit_index < 32; bit_index++) { - if ((group_table[dword_index] & (1 << bit_index)) != 0) { - return (dword_index * 32) + bit_index; - } - } - } - } - - return SCIC_SDS_REMOTE_NODE_TABLE_INVALID_INDEX; -} - -/** - * - * @out]: remote_node_table This the remote node table in which to clear the - * selector. - * @set_index: This is the remote node selector in which the change will be - * made. - * @group_index: This is the bit index in the table to be modified. - * - * This method will clear the group index entry in the specified group index - * table. none - */ -static void scic_sds_remote_node_table_clear_group_index( - struct scic_remote_node_table *remote_node_table, - u32 group_table_index, - u32 group_index) -{ - u32 dword_index; - u32 bit_index; - u32 *group_table; - - BUG_ON(group_table_index >= SCU_STP_REMOTE_NODE_COUNT); - BUG_ON(group_index >= (u32)(remote_node_table->group_array_size * 32)); - - dword_index = group_index / 32; - bit_index = group_index % 32; - group_table = remote_node_table->remote_node_groups[group_table_index]; - - group_table[dword_index] = group_table[dword_index] & ~(1 << bit_index); -} - -/** - * - * @out]: remote_node_table This the remote node table in which to set the - * selector. - * @group_table_index: This is the remote node selector in which the change - * will be made. - * @group_index: This is the bit position in the table to be modified. - * - * This method will set the group index bit entry in the specified gropu index - * table. none - */ -static void scic_sds_remote_node_table_set_group_index( - struct scic_remote_node_table *remote_node_table, - u32 group_table_index, - u32 group_index) -{ - u32 dword_index; - u32 bit_index; - u32 *group_table; - - BUG_ON(group_table_index >= SCU_STP_REMOTE_NODE_COUNT); - BUG_ON(group_index >= (u32)(remote_node_table->group_array_size * 32)); - - dword_index = group_index / 32; - bit_index = group_index % 32; - group_table = remote_node_table->remote_node_groups[group_table_index]; - - group_table[dword_index] = group_table[dword_index] | (1 << bit_index); -} - -/** - * - * @out]: remote_node_table This is the remote node table in which to modify - * the remote node availability. - * @remote_node_index: This is the remote node index that is being returned to - * the table. - * - * This method will set the remote to available in the remote node allocation - * table. none - */ -static void scic_sds_remote_node_table_set_node_index( - struct scic_remote_node_table *remote_node_table, - u32 remote_node_index) -{ - u32 dword_location; - u32 dword_remainder; - u32 slot_normalized; - u32 slot_position; - - BUG_ON( - (remote_node_table->available_nodes_array_size * SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD) - <= (remote_node_index / SCU_STP_REMOTE_NODE_COUNT) - ); - - dword_location = remote_node_index / SCIC_SDS_REMOTE_NODES_PER_DWORD; - dword_remainder = remote_node_index % SCIC_SDS_REMOTE_NODES_PER_DWORD; - slot_normalized = (dword_remainder / SCU_STP_REMOTE_NODE_COUNT) * sizeof(u32); - slot_position = remote_node_index % SCU_STP_REMOTE_NODE_COUNT; - - remote_node_table->available_remote_nodes[dword_location] |= - 1 << (slot_normalized + slot_position); -} - -/** - * - * @out]: remote_node_table This is the remote node table from which to clear - * the available remote node bit. - * @remote_node_index: This is the remote node index which is to be cleared - * from the table. - * - * This method clears the remote node index from the table of available remote - * nodes. none - */ -static void scic_sds_remote_node_table_clear_node_index( - struct scic_remote_node_table *remote_node_table, - u32 remote_node_index) -{ - u32 dword_location; - u32 dword_remainder; - u32 slot_position; - u32 slot_normalized; - - BUG_ON( - (remote_node_table->available_nodes_array_size * SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD) - <= (remote_node_index / SCU_STP_REMOTE_NODE_COUNT) - ); - - dword_location = remote_node_index / SCIC_SDS_REMOTE_NODES_PER_DWORD; - dword_remainder = remote_node_index % SCIC_SDS_REMOTE_NODES_PER_DWORD; - slot_normalized = (dword_remainder / SCU_STP_REMOTE_NODE_COUNT) * sizeof(u32); - slot_position = remote_node_index % SCU_STP_REMOTE_NODE_COUNT; - - remote_node_table->available_remote_nodes[dword_location] &= - ~(1 << (slot_normalized + slot_position)); -} - -/** - * - * @out]: remote_node_table The remote node table from which the slot will be - * cleared. - * @group_index: The index for the slot that is to be cleared. - * - * This method clears the entire table slot at the specified slot index. none - */ -static void scic_sds_remote_node_table_clear_group( - struct scic_remote_node_table *remote_node_table, - u32 group_index) -{ - u32 dword_location; - u32 dword_remainder; - u32 dword_value; - - BUG_ON( - (remote_node_table->available_nodes_array_size * SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD) - <= (group_index / SCU_STP_REMOTE_NODE_COUNT) - ); - - dword_location = group_index / SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD; - dword_remainder = group_index % SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD; - - dword_value = remote_node_table->available_remote_nodes[dword_location]; - dword_value &= ~(SCIC_SDS_REMOTE_NODE_TABLE_FULL_SLOT_VALUE << (dword_remainder * 4)); - remote_node_table->available_remote_nodes[dword_location] = dword_value; -} - -/** - * - * @remote_node_table: - * - * THis method sets an entire remote node group in the remote node table. - */ -static void scic_sds_remote_node_table_set_group( - struct scic_remote_node_table *remote_node_table, - u32 group_index) -{ - u32 dword_location; - u32 dword_remainder; - u32 dword_value; - - BUG_ON( - (remote_node_table->available_nodes_array_size * SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD) - <= (group_index / SCU_STP_REMOTE_NODE_COUNT) - ); - - dword_location = group_index / SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD; - dword_remainder = group_index % SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD; - - dword_value = remote_node_table->available_remote_nodes[dword_location]; - dword_value |= (SCIC_SDS_REMOTE_NODE_TABLE_FULL_SLOT_VALUE << (dword_remainder * 4)); - remote_node_table->available_remote_nodes[dword_location] = dword_value; -} - -/** - * - * @remote_node_table: This is the remote node table that for which the group - * value is to be returned. - * @group_index: This is the group index to use to find the group value. - * - * This method will return the group value for the specified group index. The - * bit values at the specified remote node group index. - */ -static u8 scic_sds_remote_node_table_get_group_value( - struct scic_remote_node_table *remote_node_table, - u32 group_index) -{ - u32 dword_location; - u32 dword_remainder; - u32 dword_value; - - dword_location = group_index / SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD; - dword_remainder = group_index % SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD; - - dword_value = remote_node_table->available_remote_nodes[dword_location]; - dword_value &= (SCIC_SDS_REMOTE_NODE_TABLE_FULL_SLOT_VALUE << (dword_remainder * 4)); - dword_value = dword_value >> (dword_remainder * 4); - - return (u8)dword_value; -} - -/** - * - * @out]: remote_node_table The remote that which is to be initialized. - * @remote_node_entries: The number of entries to put in the table. - * - * This method will initialize the remote node table for use. none - */ -void scic_sds_remote_node_table_initialize( - struct scic_remote_node_table *remote_node_table, - u32 remote_node_entries) -{ - u32 index; - - /* - * Initialize the raw data we could improve the speed by only initializing - * those entries that we are actually going to be used */ - memset( - remote_node_table->available_remote_nodes, - 0x00, - sizeof(remote_node_table->available_remote_nodes) - ); - - memset( - remote_node_table->remote_node_groups, - 0x00, - sizeof(remote_node_table->remote_node_groups) - ); - - /* Initialize the available remote node sets */ - remote_node_table->available_nodes_array_size = (u16) - (remote_node_entries / SCIC_SDS_REMOTE_NODES_PER_DWORD) - + ((remote_node_entries % SCIC_SDS_REMOTE_NODES_PER_DWORD) != 0); - - - /* Initialize each full DWORD to a FULL SET of remote nodes */ - for (index = 0; index < remote_node_entries; index++) { - scic_sds_remote_node_table_set_node_index(remote_node_table, index); - } - - remote_node_table->group_array_size = (u16) - (remote_node_entries / (SCU_STP_REMOTE_NODE_COUNT * 32)) - + ((remote_node_entries % (SCU_STP_REMOTE_NODE_COUNT * 32)) != 0); - - for (index = 0; index < (remote_node_entries / SCU_STP_REMOTE_NODE_COUNT); index++) { - /* - * These are all guaranteed to be full slot values so fill them in the - * available sets of 3 remote nodes */ - scic_sds_remote_node_table_set_group_index(remote_node_table, 2, index); - } - - /* Now fill in any remainders that we may find */ - if ((remote_node_entries % SCU_STP_REMOTE_NODE_COUNT) == 2) { - scic_sds_remote_node_table_set_group_index(remote_node_table, 1, index); - } else if ((remote_node_entries % SCU_STP_REMOTE_NODE_COUNT) == 1) { - scic_sds_remote_node_table_set_group_index(remote_node_table, 0, index); - } -} - -/** - * - * @out]: remote_node_table The remote node table from which to allocate a - * remote node. - * @table_index: The group index that is to be used for the search. - * - * This method will allocate a single RNi from the remote node table. The - * table index will determine from which remote node group table to search. - * This search may fail and another group node table can be specified. The - * function is designed to allow a serach of the available single remote node - * group up to the triple remote node group. If an entry is found in the - * specified table the remote node is removed and the remote node groups are - * updated. The RNi value or an invalid remote node context if an RNi can not - * be found. - */ -static u16 scic_sds_remote_node_table_allocate_single_remote_node( - struct scic_remote_node_table *remote_node_table, - u32 group_table_index) -{ - u8 index; - u8 group_value; - u32 group_index; - u16 remote_node_index = SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX; - - group_index = scic_sds_remote_node_table_get_group_index( - remote_node_table, group_table_index); - - /* We could not find an available slot in the table selector 0 */ - if (group_index != SCIC_SDS_REMOTE_NODE_TABLE_INVALID_INDEX) { - group_value = scic_sds_remote_node_table_get_group_value( - remote_node_table, group_index); - - for (index = 0; index < SCU_STP_REMOTE_NODE_COUNT; index++) { - if (((1 << index) & group_value) != 0) { - /* We have selected a bit now clear it */ - remote_node_index = (u16)(group_index * SCU_STP_REMOTE_NODE_COUNT - + index); - - scic_sds_remote_node_table_clear_group_index( - remote_node_table, group_table_index, group_index - ); - - scic_sds_remote_node_table_clear_node_index( - remote_node_table, remote_node_index - ); - - if (group_table_index > 0) { - scic_sds_remote_node_table_set_group_index( - remote_node_table, group_table_index - 1, group_index - ); - } - - break; - } - } - } - - return remote_node_index; -} - -/** - * - * @remote_node_table: This is the remote node table from which to allocate the - * remote node entries. - * @group_table_index: THis is the group table index which must equal two (2) - * for this operation. - * - * This method will allocate three consecutive remote node context entries. If - * there are no remaining triple entries the function will return a failure. - * The remote node index that represents three consecutive remote node entries - * or an invalid remote node context if none can be found. - */ -static u16 scic_sds_remote_node_table_allocate_triple_remote_node( - struct scic_remote_node_table *remote_node_table, - u32 group_table_index) -{ - u32 group_index; - u16 remote_node_index = SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX; - - group_index = scic_sds_remote_node_table_get_group_index( - remote_node_table, group_table_index); - - if (group_index != SCIC_SDS_REMOTE_NODE_TABLE_INVALID_INDEX) { - remote_node_index = (u16)group_index * SCU_STP_REMOTE_NODE_COUNT; - - scic_sds_remote_node_table_clear_group_index( - remote_node_table, group_table_index, group_index - ); - - scic_sds_remote_node_table_clear_group( - remote_node_table, group_index - ); - } - - return remote_node_index; -} - -/** - * - * @remote_node_table: This is the remote node table from which the remote node - * allocation is to take place. - * @remote_node_count: This is ther remote node count which is one of - * SCU_SSP_REMOTE_NODE_COUNT(1) or SCU_STP_REMOTE_NODE_COUNT(3). - * - * This method will allocate a remote node that mataches the remote node count - * specified by the caller. Valid values for remote node count is - * SCU_SSP_REMOTE_NODE_COUNT(1) or SCU_STP_REMOTE_NODE_COUNT(3). u16 This is - * the remote node index that is returned or an invalid remote node context. - */ -u16 scic_sds_remote_node_table_allocate_remote_node( - struct scic_remote_node_table *remote_node_table, - u32 remote_node_count) -{ - u16 remote_node_index = SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX; - - if (remote_node_count == SCU_SSP_REMOTE_NODE_COUNT) { - remote_node_index = - scic_sds_remote_node_table_allocate_single_remote_node( - remote_node_table, 0); - - if (remote_node_index == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) { - remote_node_index = - scic_sds_remote_node_table_allocate_single_remote_node( - remote_node_table, 1); - } - - if (remote_node_index == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) { - remote_node_index = - scic_sds_remote_node_table_allocate_single_remote_node( - remote_node_table, 2); - } - } else if (remote_node_count == SCU_STP_REMOTE_NODE_COUNT) { - remote_node_index = - scic_sds_remote_node_table_allocate_triple_remote_node( - remote_node_table, 2); - } - - return remote_node_index; -} - -/** - * - * @remote_node_table: - * - * This method will free a single remote node index back to the remote node - * table. This routine will update the remote node groups - */ -static void scic_sds_remote_node_table_release_single_remote_node( - struct scic_remote_node_table *remote_node_table, - u16 remote_node_index) -{ - u32 group_index; - u8 group_value; - - group_index = remote_node_index / SCU_STP_REMOTE_NODE_COUNT; - - group_value = scic_sds_remote_node_table_get_group_value(remote_node_table, group_index); - - /* - * Assert that we are not trying to add an entry to a slot that is already - * full. */ - BUG_ON(group_value == SCIC_SDS_REMOTE_NODE_TABLE_FULL_SLOT_VALUE); - - if (group_value == 0x00) { - /* - * There are no entries in this slot so it must be added to the single - * slot table. */ - scic_sds_remote_node_table_set_group_index(remote_node_table, 0, group_index); - } else if ((group_value & (group_value - 1)) == 0) { - /* - * There is only one entry in this slot so it must be moved from the - * single slot table to the dual slot table */ - scic_sds_remote_node_table_clear_group_index(remote_node_table, 0, group_index); - scic_sds_remote_node_table_set_group_index(remote_node_table, 1, group_index); - } else { - /* - * There are two entries in the slot so it must be moved from the dual - * slot table to the tripple slot table. */ - scic_sds_remote_node_table_clear_group_index(remote_node_table, 1, group_index); - scic_sds_remote_node_table_set_group_index(remote_node_table, 2, group_index); - } - - scic_sds_remote_node_table_set_node_index(remote_node_table, remote_node_index); -} - -/** - * - * @remote_node_table: This is the remote node table to which the remote node - * index is to be freed. - * - * This method will release a group of three consecutive remote nodes back to - * the free remote nodes. - */ -static void scic_sds_remote_node_table_release_triple_remote_node( - struct scic_remote_node_table *remote_node_table, - u16 remote_node_index) -{ - u32 group_index; - - group_index = remote_node_index / SCU_STP_REMOTE_NODE_COUNT; - - scic_sds_remote_node_table_set_group_index( - remote_node_table, 2, group_index - ); - - scic_sds_remote_node_table_set_group(remote_node_table, group_index); -} - -/** - * - * @remote_node_table: The remote node table to which the remote node index is - * to be freed. - * @remote_node_count: This is the count of consecutive remote nodes that are - * to be freed. - * - * This method will release the remote node index back into the remote node - * table free pool. - */ -void scic_sds_remote_node_table_release_remote_node_index( - struct scic_remote_node_table *remote_node_table, - u32 remote_node_count, - u16 remote_node_index) -{ - if (remote_node_count == SCU_SSP_REMOTE_NODE_COUNT) { - scic_sds_remote_node_table_release_single_remote_node( - remote_node_table, remote_node_index); - } else if (remote_node_count == SCU_STP_REMOTE_NODE_COUNT) { - scic_sds_remote_node_table_release_triple_remote_node( - remote_node_table, remote_node_index); - } -} - diff --git a/drivers/scsi/isci/core/scic_sds_remote_node_table.h b/drivers/scsi/isci/core/scic_sds_remote_node_table.h deleted file mode 100644 index 9c02a6ccb2f..00000000000 --- a/drivers/scsi/isci/core/scic_sds_remote_node_table.h +++ /dev/null @@ -1,195 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef _SCIC_SDS_REMOTE_NODE_TABLE_H_ -#define _SCIC_SDS_REMOTE_NODE_TABLE_H_ - -/** - * This file contains the structures, constants and prototypes used for the - * remote node table. - * - * - */ - -#include "sci_controller_constants.h" - -/** - * - * - * Remote node sets are sets of remote node index in the remtoe node table The - * SCU hardware requires that STP remote node entries take three consecutive - * remote node index so the table is arranged in sets of three. The bits are - * used as 0111 0111 to make a byte and the bits define the set of three remote - * nodes to use as a sequence. - */ -#define SCIC_SDS_REMOTE_NODE_SETS_PER_BYTE 2 - -/** - * - * - * Since the remote node table is organized as DWORDS take the remote node sets - * in bytes and represent them in DWORDs. The lowest ordered bits are the ones - * used in case full DWORD is not being used. i.e. 0000 0000 0000 0000 0111 - * 0111 0111 0111 // if only a single WORD is in use in the DWORD. - */ -#define SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD \ - (sizeof(u32) * SCIC_SDS_REMOTE_NODE_SETS_PER_BYTE) -/** - * - * - * This is a count of the numeber of remote nodes that can be represented in a - * byte - */ -#define SCIC_SDS_REMOTE_NODES_PER_BYTE \ - (SCU_STP_REMOTE_NODE_COUNT * SCIC_SDS_REMOTE_NODE_SETS_PER_BYTE) - -/** - * - * - * This is a count of the number of remote nodes that can be represented in a - * DWROD - */ -#define SCIC_SDS_REMOTE_NODES_PER_DWORD \ - (sizeof(u32) * SCIC_SDS_REMOTE_NODES_PER_BYTE) - -/** - * - * - * This is the number of bits in a remote node group - */ -#define SCIC_SDS_REMOTE_NODES_BITS_PER_GROUP 4 - -#define SCIC_SDS_REMOTE_NODE_TABLE_INVALID_INDEX (0xFFFFFFFF) -#define SCIC_SDS_REMOTE_NODE_TABLE_FULL_SLOT_VALUE (0x07) -#define SCIC_SDS_REMOTE_NODE_TABLE_EMPTY_SLOT_VALUE (0x00) - -/** - * - * - * Expander attached sata remote node count - */ -#define SCU_STP_REMOTE_NODE_COUNT 3 - -/** - * - * - * Expander or direct attached ssp remote node count - */ -#define SCU_SSP_REMOTE_NODE_COUNT 1 - -/** - * - * - * Direct attached STP remote node count - */ -#define SCU_SATA_REMOTE_NODE_COUNT 1 - -/** - * struct scic_remote_node_table - - * - * - */ -struct scic_remote_node_table { - /** - * This field contains the array size in dwords - */ - u16 available_nodes_array_size; - - /** - * This field contains the array size of the - */ - u16 group_array_size; - - /** - * This field is the array of available remote node entries in bits. - * Because of the way STP remote node data is allocated on the SCU hardware - * the remote nodes must occupy three consecutive remote node context - * entries. For ease of allocation and de-allocation we have broken the - * sets of three into a single nibble. When the STP RNi is allocated all - * of the bits in the nibble are cleared. This math results in a table size - * of MAX_REMOTE_NODES / CONSECUTIVE RNi ENTRIES for STP / 2 entries per byte. - */ - u32 available_remote_nodes[ - (SCI_MAX_REMOTE_DEVICES / SCIC_SDS_REMOTE_NODES_PER_DWORD) - + ((SCI_MAX_REMOTE_DEVICES % SCIC_SDS_REMOTE_NODES_PER_DWORD) != 0)]; - - /** - * This field is the nibble selector for the above table. There are three - * possible selectors each for fast lookup when trying to find one, two or - * three remote node entries. - */ - u32 remote_node_groups[ - SCU_STP_REMOTE_NODE_COUNT][ - (SCI_MAX_REMOTE_DEVICES / (32 * SCU_STP_REMOTE_NODE_COUNT)) - + ((SCI_MAX_REMOTE_DEVICES % (32 * SCU_STP_REMOTE_NODE_COUNT)) != 0)]; - -}; - -/* --------------------------------------------------------------------------- */ - -void scic_sds_remote_node_table_initialize( - struct scic_remote_node_table *remote_node_table, - u32 remote_node_entries); - -u16 scic_sds_remote_node_table_allocate_remote_node( - struct scic_remote_node_table *remote_node_table, - u32 remote_node_count); - -void scic_sds_remote_node_table_release_remote_node_index( - struct scic_remote_node_table *remote_node_table, - u32 remote_node_count, - u16 remote_node_index); - -#endif /* _SCIC_SDS_REMOTE_NODE_TABLE_H_ */ diff --git a/drivers/scsi/isci/core/scic_sds_request.c b/drivers/scsi/isci/core/scic_sds_request.c index 63ebbf39dc9..dfb94121d44 100644 --- a/drivers/scsi/isci/core/scic_sds_request.c +++ b/drivers/scsi/isci/core/scic_sds_request.c @@ -59,11 +59,10 @@ #include "intel_sat.h" #include "scic_controller.h" #include "scic_io_request.h" -#include "scic_remote_device.h" #include "scic_sds_controller.h" #include "scu_registers.h" #include "scic_sds_port.h" -#include "scic_sds_remote_device.h" +#include "remote_device.h" #include "scic_sds_request.h" #include "scic_sds_smp_request.h" #include "scic_sds_stp_request.h" diff --git a/drivers/scsi/isci/core/scic_sds_smp_remote_device.c b/drivers/scsi/isci/core/scic_sds_smp_remote_device.c deleted file mode 100644 index cd55c0a8dae..00000000000 --- a/drivers/scsi/isci/core/scic_sds_smp_remote_device.c +++ /dev/null @@ -1,315 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "scic_remote_device.h" -#include "scic_sds_controller.h" -#include "scic_sds_port.h" -#include "scic_sds_remote_device.h" -#include "scic_sds_request.h" -#include "sci_environment.h" -#include "sci_util.h" -#include "scu_event_codes.h" -#include "scu_task_context.h" - -/* - * ***************************************************************************** - * * SMP REMOTE DEVICE READY IDLE SUBSTATE HANDLERS - * ***************************************************************************** */ - -/** - * - * @[in]: device The device the io is sent to. - * @[in]: request The io to start. - * - * This method will handle the start io operation for a SMP device that is in - * the idle state. enum sci_status - */ -static enum sci_status scic_sds_smp_remote_device_ready_idle_substate_start_io_handler( - struct scic_sds_remote_device *device, - struct scic_sds_request *request) -{ - enum sci_status status; - - /* Will the port allow the io request to start? */ - status = device->owning_port->state_handlers->start_io_handler( - device->owning_port, device, request); - - if (status == SCI_SUCCESS) { - status = scic_sds_remote_node_context_start_io(&device->rnc, request); - - if (status == SCI_SUCCESS) - status = scic_sds_request_start(request); - - if (status == SCI_SUCCESS) { - device->working_request = request; - - sci_base_state_machine_change_state( - &device->ready_substate_machine, - SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD - ); - } - - scic_sds_remote_device_start_request(device, request, status); - } - - return status; -} - - -/* - * ****************************************************************************** - * * SMP REMOTE DEVICE READY SUBSTATE CMD HANDLERS - * ****************************************************************************** */ -/** - * - * @device: This is the device object that is receiving the IO. - * @request: The io to start. - * - * This device is already handling a command it can not accept new commands - * until this one is complete. enum sci_status - */ -static enum sci_status scic_sds_smp_remote_device_ready_cmd_substate_start_io_handler( - struct scic_sds_remote_device *device, - struct scic_sds_request *request) -{ - return SCI_FAILURE_INVALID_STATE; -} - - -/** - * this is the complete_io_handler for smp device at ready cmd substate. - * @device: This is the device object that is receiving the IO. - * @request: The io to start. - * - * enum sci_status - */ -static enum sci_status -scic_sds_smp_remote_device_ready_cmd_substate_complete_io_handler( - struct scic_sds_remote_device *device, - struct scic_sds_request *request) -{ - enum sci_status status; - struct scic_sds_request *sci_req; - - sci_req = (struct scic_sds_request *)request; - - status = scic_sds_io_request_complete(sci_req); - - if (status == SCI_SUCCESS) { - status = scic_sds_port_complete_io( - device->owning_port, device, sci_req); - - if (status == SCI_SUCCESS) { - scic_sds_remote_device_decrement_request_count(device); - sci_base_state_machine_change_state( - &device->ready_substate_machine, - SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE - ); - } else - dev_err(scirdev_to_dev(device), - "%s: SCIC SDS Remote Device 0x%p io request " - "0x%p could not be completd on the port 0x%p " - "failed with status %d.\n", - __func__, - device, - sci_req, - device->owning_port, - status); - } - - return status; -} - -/** - * This is frame handler for smp device ready cmd substate. - * @sci_dev: This is the device object that is receiving the frame. - * @frame_index: The index for the frame received. - * - * enum sci_status - */ -static enum sci_status scic_sds_smp_remote_device_ready_cmd_substate_frame_handler( - struct scic_sds_remote_device *sci_dev, - u32 frame_index) -{ - enum sci_status status; - - /* - * / The device does not process any UF received from the hardware while - * / in this state. All unsolicited frames are forwarded to the io request - * / object. */ - status = scic_sds_io_request_frame_handler( - sci_dev->working_request, - frame_index - ); - - return status; -} - -/* --------------------------------------------------------------------------- */ - -static const struct scic_sds_remote_device_state_handler scic_sds_smp_remote_device_ready_substate_handler_table[] = { - [SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE] = { - .start_handler = scic_sds_remote_device_default_start_handler, - .stop_handler = scic_sds_remote_device_ready_state_stop_handler, - .fail_handler = scic_sds_remote_device_default_fail_handler, - .destruct_handler = scic_sds_remote_device_default_destruct_handler, - .reset_handler = scic_sds_remote_device_default_reset_handler, - .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, - .start_io_handler = scic_sds_smp_remote_device_ready_idle_substate_start_io_handler, - .complete_io_handler = scic_sds_remote_device_default_complete_request_handler, - .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, - .start_task_handler = scic_sds_remote_device_default_start_request_handler, - .complete_task_handler = scic_sds_remote_device_default_complete_request_handler, - .suspend_handler = scic_sds_remote_device_default_suspend_handler, - .resume_handler = scic_sds_remote_device_default_resume_handler, - .event_handler = scic_sds_remote_device_general_event_handler, - .frame_handler = scic_sds_remote_device_default_frame_handler - }, - [SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD] = { - .start_handler = scic_sds_remote_device_default_start_handler, - .stop_handler = scic_sds_remote_device_ready_state_stop_handler, - .fail_handler = scic_sds_remote_device_default_fail_handler, - .destruct_handler = scic_sds_remote_device_default_destruct_handler, - .reset_handler = scic_sds_remote_device_default_reset_handler, - .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, - .start_io_handler = scic_sds_smp_remote_device_ready_cmd_substate_start_io_handler, - .complete_io_handler = scic_sds_smp_remote_device_ready_cmd_substate_complete_io_handler, - .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, - .start_task_handler = scic_sds_remote_device_default_start_request_handler, - .complete_task_handler = scic_sds_remote_device_default_complete_request_handler, - .suspend_handler = scic_sds_remote_device_default_suspend_handler, - .resume_handler = scic_sds_remote_device_default_resume_handler, - .event_handler = scic_sds_remote_device_general_event_handler, - .frame_handler = scic_sds_smp_remote_device_ready_cmd_substate_frame_handler - } -}; - -/** - * - * @object: This is the struct sci_base_object which is cast into a - * struct scic_sds_remote_device. - * - * This is the SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE enter method. - * This function sets the ready cmd substate handlers and reports the device as - * ready. none - */ -static void scic_sds_smp_remote_device_ready_idle_substate_enter(struct sci_base_object *object) -{ - struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev), - parent); - struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); - struct isci_host *ihost = sci_object_get_association(scic); - struct isci_remote_device *idev = sci_object_get_association(sci_dev); - - SET_STATE_HANDLER(sci_dev, - scic_sds_smp_remote_device_ready_substate_handler_table, - SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE); - - isci_remote_device_ready(ihost, idev); -} - -/** - * - * @object: This is the struct sci_base_object which is cast into a - * struct scic_sds_remote_device. - * - * This is the SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD enter method. This - * function sets the remote device objects ready cmd substate handlers, and - * notify core user that the device is not ready. none - */ -static void scic_sds_smp_remote_device_ready_cmd_substate_enter( - struct sci_base_object *object) -{ - struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev), - parent); - struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); - struct isci_host *ihost = sci_object_get_association(scic); - struct isci_remote_device *idev = sci_object_get_association(sci_dev); - - BUG_ON(sci_dev->working_request == NULL); - - SET_STATE_HANDLER(sci_dev, - scic_sds_smp_remote_device_ready_substate_handler_table, - SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD); - - isci_remote_device_not_ready(ihost, idev, - SCIC_REMOTE_DEVICE_NOT_READY_SMP_REQUEST_STARTED); -} - -/** - * - * @object: This is the struct sci_base_object which is cast into a - * struct scic_sds_remote_device. - * - * This is the SCIC_SDS_SSP_REMOTE_DEVICE_READY_SUBSTATE_CMD exit method. none - */ -static void scic_sds_smp_remote_device_ready_cmd_substate_exit(struct sci_base_object *object) -{ - struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev), - parent); - sci_dev->working_request = NULL; -} - -/* --------------------------------------------------------------------------- */ - -const struct sci_base_state scic_sds_smp_remote_device_ready_substate_table[] = { - [SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE] = { - .enter_state = scic_sds_smp_remote_device_ready_idle_substate_enter, - }, - [SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD] = { - .enter_state = scic_sds_smp_remote_device_ready_cmd_substate_enter, - .exit_state = scic_sds_smp_remote_device_ready_cmd_substate_exit, - }, -}; diff --git a/drivers/scsi/isci/core/scic_sds_smp_request.c b/drivers/scsi/isci/core/scic_sds_smp_request.c index 3274d62ac3b..1790f25758d 100644 --- a/drivers/scsi/isci/core/scic_sds_smp_request.c +++ b/drivers/scsi/isci/core/scic_sds_smp_request.c @@ -56,9 +56,8 @@ #include "intel_sas.h" #include "sci_base_state_machine.h" #include "scic_controller.h" -#include "scic_remote_device.h" #include "scic_sds_controller.h" -#include "scic_sds_remote_device.h" +#include "remote_device.h" #include "scic_sds_request.h" #include "scic_sds_smp_request.h" #include "sci_environment.h" diff --git a/drivers/scsi/isci/core/scic_sds_stp_packet_request.c b/drivers/scsi/isci/core/scic_sds_stp_packet_request.c index e4d2bf56f49..1cb77bbb748 100644 --- a/drivers/scsi/isci/core/scic_sds_stp_packet_request.c +++ b/drivers/scsi/isci/core/scic_sds_stp_packet_request.c @@ -61,9 +61,8 @@ #include "sati_translator_sequence.h" #include "sci_base_state.h" #include "scic_controller.h" -#include "scic_remote_device.h" #include "scic_sds_controller.h" -#include "scic_sds_remote_device.h" +#include "remote_device.h" #include "scic_sds_request.h" #include "scic_sds_stp_packet_request.h" #include "scic_user_callback.h" diff --git a/drivers/scsi/isci/core/scic_sds_stp_remote_device.c b/drivers/scsi/isci/core/scic_sds_stp_remote_device.c deleted file mode 100644 index 848cb4711b6..00000000000 --- a/drivers/scsi/isci/core/scic_sds_stp_remote_device.c +++ /dev/null @@ -1,818 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "intel_ata.h" -#include "intel_sata.h" -#include "intel_sat.h" -#include "sci_base_state.h" -#include "scic_remote_device.h" -#include "scic_sds_controller.h" -#include "scic_sds_port.h" -#include "scic_sds_remote_device.h" -#include "scic_sds_request.h" -#include "sci_environment.h" -#include "sci_util.h" -#include "scu_event_codes.h" - -/** - * This method will perform the STP request completion processing common to IO - * requests and task requests of all types - * @device: This parameter specifies the device for which the request is being - * completed. - * @request: This parameter specifies the request being completed. - * - * This method returns an indication as to whether the request processing - * completed successfully. - */ -static enum sci_status scic_sds_stp_remote_device_complete_request( - struct scic_sds_remote_device *device, - struct scic_sds_request *request) -{ - enum sci_status status; - - status = scic_sds_io_request_complete(request); - - if (status == SCI_SUCCESS) { - status = scic_sds_port_complete_io( - device->owning_port, device, request); - - if (status == SCI_SUCCESS) { - scic_sds_remote_device_decrement_request_count(device); - if (request->sci_status == SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED) { - /* - * This request causes hardware error, device needs to be Lun Reset. - * So here we force the state machine to IDLE state so the rest IOs - * can reach RNC state handler, these IOs will be completed by RNC with - * status of "DEVICE_RESET_REQUIRED", instead of "INVALID STATE". */ - sci_base_state_machine_change_state( - &device->ready_substate_machine, - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET - ); - } else if (scic_sds_remote_device_get_request_count(device) == 0) { - sci_base_state_machine_change_state( - &device->ready_substate_machine, - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE - ); - } - } - } - - if (status != SCI_SUCCESS) - dev_err(scirdev_to_dev(device), - "%s: Port:0x%p Device:0x%p Request:0x%p Status:0x%x " - "could not complete\n", - __func__, - device->owning_port, - device, - request, - status); - - return status; -} - -/* - * ***************************************************************************** - * * STP REMOTE DEVICE READY COMMON SUBSTATE HANDLERS - * ***************************************************************************** */ - -/** - * This is the READY NCQ substate handler to start task management request. In - * this routine, we suspend and resume the RNC. - * @device: The target device a task management request towards to. - * @request: The task request. - * - * enum sci_status Always return SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS status to - * let controller_start_task_handler know that the controller can't post TC for - * task request yet, instead, when RNC gets resumed, a controller_continue_task - * callback will be called. - */ -static enum sci_status scic_sds_stp_remote_device_ready_substate_start_request_handler( - struct scic_sds_remote_device *device, - struct scic_sds_request *request) -{ - enum sci_status status; - - /* Will the port allow the io request to start? */ - status = device->owning_port->state_handlers->start_io_handler( - device->owning_port, device, request); - if (status != SCI_SUCCESS) - return status; - - status = scic_sds_remote_node_context_start_task(&device->rnc, request); - if (status != SCI_SUCCESS) - goto out; - - status = request->state_handlers->start_handler(request); - if (status != SCI_SUCCESS) - goto out; - - /* - * Note: If the remote device state is not IDLE this will replace - * the request that probably resulted in the task management request. - */ - device->working_request = request; - sci_base_state_machine_change_state(&device->ready_substate_machine, - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD); - - /* - * The remote node context must cleanup the TCi to NCQ mapping table. - * The only way to do this correctly is to either write to the TLCR - * register or to invalidate and repost the RNC. In either case the - * remote node context state machine will take the correct action when - * the remote node context is suspended and later resumed. - */ - scic_sds_remote_node_context_suspend(&device->rnc, - SCI_SOFTWARE_SUSPENSION, NULL, NULL); - scic_sds_remote_node_context_resume(&device->rnc, - scic_sds_remote_device_continue_request, - device); - -out: - scic_sds_remote_device_start_request(device, request, status); - /* - * We need to let the controller start request handler know that it can't - * post TC yet. We will provide a callback function to post TC when RNC gets - * resumed. - */ - return SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS; -} - -/* - * ***************************************************************************** - * * STP REMOTE DEVICE READY IDLE SUBSTATE HANDLERS - * ***************************************************************************** */ - -/** - * This method will handle the start io operation for a sata device that is in - * the command idle state. - Evalute the type of IO request to be started - - * If its an NCQ request change to NCQ substate - If its any other command - * change to the CMD substate - * @device: - * @request: - * - * If this is a softreset we may want to have a different substate. - * enum sci_status - */ -static enum sci_status scic_sds_stp_remote_device_ready_idle_substate_start_io_handler( - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *request) -{ - enum sci_status status; - struct isci_request *isci_request = - (struct isci_request *)sci_object_get_association(request); - - - /* Will the port allow the io request to start? */ - status = sci_dev->owning_port->state_handlers->start_io_handler( - sci_dev->owning_port, sci_dev, request); - if (status != SCI_SUCCESS) - return status; - - status = scic_sds_remote_node_context_start_io(&sci_dev->rnc, request); - if (status != SCI_SUCCESS) - goto out; - - status = request->state_handlers->start_handler(request); - if (status != SCI_SUCCESS) - goto out; - - if (isci_sata_get_sat_protocol(isci_request) == SAT_PROTOCOL_FPDMA) { - sci_base_state_machine_change_state(&sci_dev->ready_substate_machine, - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ); - } else { - sci_dev->working_request = request; - sci_base_state_machine_change_state(&sci_dev->ready_substate_machine, - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD); - } -out: - scic_sds_remote_device_start_request(sci_dev, request, status); - return status; -} - - -/** - * - * @[in]: device The device received event. - * @[in]: event_code The event code. - * - * This method will handle the event for a sata device that is in the idle - * state. We pick up suspension events to handle specifically to this state. We - * resume the RNC right away. enum sci_status - */ -static enum sci_status scic_sds_stp_remote_device_ready_idle_substate_event_handler( - struct scic_sds_remote_device *sci_dev, - u32 event_code) -{ - enum sci_status status; - - status = scic_sds_remote_device_general_event_handler(sci_dev, event_code); - - if (status == SCI_SUCCESS) { - if (scu_get_event_type(event_code) == SCU_EVENT_TYPE_RNC_SUSPEND_TX - || scu_get_event_type(event_code) == SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX) { - status = scic_sds_remote_node_context_resume( - &sci_dev->rnc, NULL, NULL); - } - } - - return status; -} - - -/* - * ***************************************************************************** - * * STP REMOTE DEVICE READY NCQ SUBSTATE HANDLERS - * ***************************************************************************** */ - -static enum sci_status scic_sds_stp_remote_device_ready_ncq_substate_start_io_handler( - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *request) -{ - enum sci_status status; - struct isci_request *isci_request = - (struct isci_request *)sci_object_get_association(request); - - if (isci_sata_get_sat_protocol(isci_request) == SAT_PROTOCOL_FPDMA) { - status = sci_dev->owning_port->state_handlers->start_io_handler( - sci_dev->owning_port, - sci_dev, - request); - if (status != SCI_SUCCESS) - return status; - - status = scic_sds_remote_node_context_start_io(&sci_dev->rnc, request); - if (status != SCI_SUCCESS) - return status; - - status = request->state_handlers->start_handler(request); - - scic_sds_remote_device_start_request(sci_dev, request, status); - } else - status = SCI_FAILURE_INVALID_STATE; - - return status; -} - - -/** - * This method will handle events received while the STP device is in the ready - * command substate. - * @sci_dev: This is the device object that is receiving the event. - * @event_code: The event code to process. - * - * enum sci_status - */ - -static enum sci_status scic_sds_stp_remote_device_ready_ncq_substate_frame_handler( - struct scic_sds_remote_device *sci_dev, - u32 frame_index) -{ - enum sci_status status; - struct sata_fis_header *frame_header; - - status = scic_sds_unsolicited_frame_control_get_header( - &(scic_sds_remote_device_get_controller(sci_dev)->uf_control), - frame_index, - (void **)&frame_header - ); - - if (status == SCI_SUCCESS) { - if (frame_header->fis_type == SATA_FIS_TYPE_SETDEVBITS && - (frame_header->status & ATA_STATUS_REG_ERROR_BIT)) { - sci_dev->not_ready_reason = - SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED; - - /* - * / @todo Check sactive and complete associated IO - * if any. - */ - - sci_base_state_machine_change_state( - &sci_dev->ready_substate_machine, - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR - ); - } else if (frame_header->fis_type == SATA_FIS_TYPE_REGD2H && - (frame_header->status & ATA_STATUS_REG_ERROR_BIT)) { - - /* - * Some devices return D2H FIS when an NCQ error is detected. - * Treat this like an SDB error FIS ready reason. - */ - sci_dev->not_ready_reason = - SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED; - - sci_base_state_machine_change_state( - &sci_dev->ready_substate_machine, - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR - ); - } else { - status = SCI_FAILURE; - } - - scic_sds_controller_release_frame( - scic_sds_remote_device_get_controller(sci_dev), frame_index - ); - } - - return status; -} - -/* - * ***************************************************************************** - * * STP REMOTE DEVICE READY CMD SUBSTATE HANDLERS - * ***************************************************************************** */ - -/** - * This device is already handling a command it can not accept new commands - * until this one is complete. - * @device: - * @request: - * - * enum sci_status - */ -static enum sci_status scic_sds_stp_remote_device_ready_cmd_substate_start_io_handler( - struct scic_sds_remote_device *device, - struct scic_sds_request *request) -{ - return SCI_FAILURE_INVALID_STATE; -} - -static enum sci_status scic_sds_stp_remote_device_ready_cmd_substate_suspend_handler( - struct scic_sds_remote_device *sci_dev, - u32 suspend_type) -{ - enum sci_status status; - - status = scic_sds_remote_node_context_suspend(&sci_dev->rnc, - suspend_type, NULL, NULL); - - return status; -} - -static enum sci_status scic_sds_stp_remote_device_ready_cmd_substate_frame_handler( - struct scic_sds_remote_device *sci_dev, - u32 frame_index) -{ - enum sci_status status; - - /* - * / The device doe not process any UF received from the hardware while - * / in this state. All unsolicited frames are forwarded to the io request - * / object. */ - status = scic_sds_io_request_frame_handler( - sci_dev->working_request, - frame_index - ); - - return status; -} - - -/* - * ***************************************************************************** - * * STP REMOTE DEVICE READY NCQ SUBSTATE HANDLERS - * ***************************************************************************** */ - -/* - * ***************************************************************************** - * * STP REMOTE DEVICE READY NCQ ERROR SUBSTATE HANDLERS - * ***************************************************************************** */ - -/* - * ***************************************************************************** - * * STP REMOTE DEVICE READY AWAIT RESET SUBSTATE HANDLERS - * ***************************************************************************** */ -static enum sci_status scic_sds_stp_remote_device_ready_await_reset_substate_start_io_handler( - struct scic_sds_remote_device *device, - struct scic_sds_request *request) -{ - return SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED; -} - - - -/** - * This method will perform the STP request (both io or task) completion - * processing for await reset state. - * @device: This parameter specifies the device for which the request is being - * completed. - * @request: This parameter specifies the request being completed. - * - * This method returns an indication as to whether the request processing - * completed successfully. - */ -static enum sci_status scic_sds_stp_remote_device_ready_await_reset_substate_complete_request_handler( - struct scic_sds_remote_device *device, - struct scic_sds_request *request) -{ - struct scic_sds_request *sci_req = (struct scic_sds_request *)request; - enum sci_status status; - - status = scic_sds_io_request_complete(sci_req); - - if (status == SCI_SUCCESS) { - status = scic_sds_port_complete_io( - device->owning_port, device, sci_req - ); - - if (status == SCI_SUCCESS) - scic_sds_remote_device_decrement_request_count(device); - } - - if (status != SCI_SUCCESS) - dev_err(scirdev_to_dev(device), - "%s: Port:0x%p Device:0x%p Request:0x%p Status:0x%x " - "could not complete\n", - __func__, - device->owning_port, - device, - sci_req, - status); - - return status; -} - -#if !defined(DISABLE_ATAPI) -/* - * ***************************************************************************** - * * STP REMOTE DEVICE READY ATAPI ERROR SUBSTATE HANDLERS - * ***************************************************************************** */ - -/** - * - * @[in]: device The device received event. - * @[in]: event_code The event code. - * - * This method will handle the event for a ATAPI device that is in the ATAPI - * ERROR state. We pick up suspension events to handle specifically to this - * state. We resume the RNC right away. We then complete the outstanding IO to - * this device. enum sci_status - */ -enum sci_status scic_sds_stp_remote_device_ready_atapi_error_substate_event_handler( - struct scic_sds_remote_device *sci_dev, - u32 event_code) -{ - enum sci_status status; - - status = scic_sds_remote_device_general_event_handler(sci_dev, event_code); - - if (status == SCI_SUCCESS) { - if (scu_get_event_type(event_code) == SCU_EVENT_TYPE_RNC_SUSPEND_TX - || scu_get_event_type(event_code) == SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX) { - status = scic_sds_remote_node_context_resume( - sci_dev->rnc, - sci_dev->working_request->state_handlers->parent.complete_handler, - (void *)sci_dev->working_request - ); - } - } - - return status; -} -#endif /* !defined(DISABLE_ATAPI) */ - -/* --------------------------------------------------------------------------- */ - -static const struct scic_sds_remote_device_state_handler scic_sds_stp_remote_device_ready_substate_handler_table[] = { - [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE] = { - .start_handler = scic_sds_remote_device_default_start_handler, - .stop_handler = scic_sds_remote_device_ready_state_stop_handler, - .fail_handler = scic_sds_remote_device_default_fail_handler, - .destruct_handler = scic_sds_remote_device_default_destruct_handler, - .reset_handler = scic_sds_remote_device_ready_state_reset_handler, - .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, - .start_io_handler = scic_sds_stp_remote_device_ready_idle_substate_start_io_handler, - .complete_io_handler = scic_sds_remote_device_default_complete_request_handler, - .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, - .start_task_handler = scic_sds_stp_remote_device_ready_substate_start_request_handler, - .complete_task_handler = scic_sds_remote_device_default_complete_request_handler, - .suspend_handler = scic_sds_remote_device_default_suspend_handler, - .resume_handler = scic_sds_remote_device_default_resume_handler, - .event_handler = scic_sds_stp_remote_device_ready_idle_substate_event_handler, - .frame_handler = scic_sds_remote_device_default_frame_handler - }, - [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD] = { - .start_handler = scic_sds_remote_device_default_start_handler, - .stop_handler = scic_sds_remote_device_ready_state_stop_handler, - .fail_handler = scic_sds_remote_device_default_fail_handler, - .destruct_handler = scic_sds_remote_device_default_destruct_handler, - .reset_handler = scic_sds_remote_device_ready_state_reset_handler, - .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, - .start_io_handler = scic_sds_stp_remote_device_ready_cmd_substate_start_io_handler, - .complete_io_handler = scic_sds_stp_remote_device_complete_request, - .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, - .start_task_handler = scic_sds_stp_remote_device_ready_substate_start_request_handler, - .complete_task_handler = scic_sds_stp_remote_device_complete_request, - .suspend_handler = scic_sds_stp_remote_device_ready_cmd_substate_suspend_handler, - .resume_handler = scic_sds_remote_device_default_resume_handler, - .event_handler = scic_sds_remote_device_general_event_handler, - .frame_handler = scic_sds_stp_remote_device_ready_cmd_substate_frame_handler - }, - [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ] = { - .start_handler = scic_sds_remote_device_default_start_handler, - .stop_handler = scic_sds_remote_device_ready_state_stop_handler, - .fail_handler = scic_sds_remote_device_default_fail_handler, - .destruct_handler = scic_sds_remote_device_default_destruct_handler, - .reset_handler = scic_sds_remote_device_ready_state_reset_handler, - .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, - .start_io_handler = scic_sds_stp_remote_device_ready_ncq_substate_start_io_handler, - .complete_io_handler = scic_sds_stp_remote_device_complete_request, - .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, - .start_task_handler = scic_sds_stp_remote_device_ready_substate_start_request_handler, - .complete_task_handler = scic_sds_stp_remote_device_complete_request, - .suspend_handler = scic_sds_remote_device_default_suspend_handler, - .resume_handler = scic_sds_remote_device_default_resume_handler, - .event_handler = scic_sds_remote_device_general_event_handler, - .frame_handler = scic_sds_stp_remote_device_ready_ncq_substate_frame_handler - }, - [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR] = { - .start_handler = scic_sds_remote_device_default_start_handler, - .stop_handler = scic_sds_remote_device_ready_state_stop_handler, - .fail_handler = scic_sds_remote_device_default_fail_handler, - .destruct_handler = scic_sds_remote_device_default_destruct_handler, - .reset_handler = scic_sds_remote_device_ready_state_reset_handler, - .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, - .start_io_handler = scic_sds_remote_device_default_start_request_handler, - .complete_io_handler = scic_sds_stp_remote_device_complete_request, - .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, - .start_task_handler = scic_sds_stp_remote_device_ready_substate_start_request_handler, - .complete_task_handler = scic_sds_stp_remote_device_complete_request, - .suspend_handler = scic_sds_remote_device_default_suspend_handler, - .resume_handler = scic_sds_remote_device_default_resume_handler, - .event_handler = scic_sds_remote_device_general_event_handler, - .frame_handler = scic_sds_remote_device_general_frame_handler - }, -#if !defined(DISABLE_ATAPI) - [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_ATAPI_ERROR] = { - .start_handler = scic_sds_remote_device_default_start_handler, - .stop_handler = scic_sds_remote_device_ready_state_stop_handler, - .fail_handler = scic_sds_remote_device_default_fail_handler, - .destruct_handler = scic_sds_remote_device_default_destruct_handler, - .reset_handler = scic_sds_remote_device_ready_state_reset_handler, - .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, - .start_io_handler = scic_sds_remote_device_default_start_request_handler, - .complete_io_handler = scic_sds_stp_remote_device_complete_request, - .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, - .start_task_handler = scic_sds_stp_remote_device_ready_substate_start_request_handler, - .complete_task_handler = scic_sds_stp_remote_device_complete_request, - .suspend_handler = scic_sds_remote_device_default_suspend_handler, - .resume_handler = scic_sds_remote_device_default_resume_handler, - .event_handler = scic_sds_stp_remote_device_ready_atapi_error_substate_event_handler, - .frame_handler = scic_sds_remote_device_general_frame_handler - }, -#endif - [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET] = { - .start_handler = scic_sds_remote_device_default_start_handler, - .stop_handler = scic_sds_remote_device_ready_state_stop_handler, - .fail_handler = scic_sds_remote_device_default_fail_handler, - .destruct_handler = scic_sds_remote_device_default_destruct_handler, - .reset_handler = scic_sds_remote_device_ready_state_reset_handler, - .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, - .start_io_handler = scic_sds_stp_remote_device_ready_await_reset_substate_start_io_handler, - .complete_io_handler = scic_sds_stp_remote_device_ready_await_reset_substate_complete_request_handler, - .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, - .start_task_handler = scic_sds_stp_remote_device_ready_substate_start_request_handler, - .complete_task_handler = scic_sds_stp_remote_device_complete_request, - .suspend_handler = scic_sds_remote_device_default_suspend_handler, - .resume_handler = scic_sds_remote_device_default_resume_handler, - .event_handler = scic_sds_remote_device_general_event_handler, - .frame_handler = scic_sds_remote_device_general_frame_handler - } -}; - -/* - * ***************************************************************************** - * * STP REMOTE DEVICE READY SUBSTATE PRIVATE METHODS - * ***************************************************************************** */ - -static void -scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handler(void *user_cookie) -{ - struct scic_sds_remote_device *sci_dev = user_cookie; - struct isci_remote_device *idev = sci_object_get_association(sci_dev); - struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); - struct isci_host *ihost = sci_object_get_association(scic); - - /* - * For NCQ operation we do not issue a - * scic_cb_remote_device_not_ready(). As a result, avoid sending - * the ready notification. - */ - if (sci_dev->ready_substate_machine.previous_state_id != - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ) - isci_remote_device_ready(ihost, idev); -} - -/* - * ***************************************************************************** - * * STP REMOTE DEVICE READY IDLE SUBSTATE - * ***************************************************************************** */ - -/** - * - * @device: This is the SCI base object which is cast into a - * struct scic_sds_remote_device object. - * - */ -static void scic_sds_stp_remote_device_ready_idle_substate_enter( - struct sci_base_object *device) -{ - struct scic_sds_remote_device *sci_dev; - - sci_dev = (struct scic_sds_remote_device *)device; - - SET_STATE_HANDLER( - sci_dev, - scic_sds_stp_remote_device_ready_substate_handler_table, - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE - ); - - sci_dev->working_request = NULL; - - if (scic_sds_remote_node_context_is_ready(&sci_dev->rnc)) { - /* - * Since the RNC is ready, it's alright to finish completion - * processing (e.g. signal the remote device is ready). */ - scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handler( - sci_dev - ); - } else { - scic_sds_remote_node_context_resume( - &sci_dev->rnc, - scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handler, - sci_dev); - } -} - -static void scic_sds_stp_remote_device_ready_cmd_substate_enter(struct sci_base_object *object) -{ - struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev), - parent); - struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); - struct isci_host *ihost = sci_object_get_association(scic); - struct isci_remote_device *idev = sci_object_get_association(sci_dev); - - BUG_ON(sci_dev->working_request == NULL); - - SET_STATE_HANDLER(sci_dev, - scic_sds_stp_remote_device_ready_substate_handler_table, - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD); - - isci_remote_device_not_ready(ihost, idev, - SCIC_REMOTE_DEVICE_NOT_READY_SATA_REQUEST_STARTED); -} - -static void scic_sds_stp_remote_device_ready_ncq_substate_enter(struct sci_base_object *object) -{ - struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev), - parent); - SET_STATE_HANDLER(sci_dev, - scic_sds_stp_remote_device_ready_substate_handler_table, - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ); -} - -static void scic_sds_stp_remote_device_ready_ncq_error_substate_enter(struct sci_base_object *object) -{ - struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev), - parent); - struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); - struct isci_host *ihost = sci_object_get_association(scic); - struct isci_remote_device *idev = sci_object_get_association(sci_dev); - - SET_STATE_HANDLER(sci_dev, - scic_sds_stp_remote_device_ready_substate_handler_table, - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR); - - if (sci_dev->not_ready_reason == - SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED) - isci_remote_device_not_ready(ihost, idev, sci_dev->not_ready_reason); -} - -/* - * ***************************************************************************** - * * STP REMOTE DEVICE READY AWAIT RESET SUBSTATE - * ***************************************************************************** */ - -/** - * The enter routine to READY AWAIT RESET substate. - * @device: This is the SCI base object which is cast into a - * struct scic_sds_remote_device object. - * - */ -static void scic_sds_stp_remote_device_ready_await_reset_substate_enter( - struct sci_base_object *device) -{ - struct scic_sds_remote_device *sci_dev; - - sci_dev = (struct scic_sds_remote_device *)device; - - SET_STATE_HANDLER( - sci_dev, - scic_sds_stp_remote_device_ready_substate_handler_table, - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET - ); -} - -#if !defined(DISABLE_ATAPI) -/* - * ***************************************************************************** - * * STP REMOTE DEVICE READY ATAPI ERROR SUBSTATE - * ***************************************************************************** */ - -/** - * The enter routine to READY ATAPI ERROR substate. - * @device: This is the SCI base object which is cast into a - * struct scic_sds_remote_device object. - * - */ -void scic_sds_stp_remote_device_ready_atapi_error_substate_enter( - struct sci_base_object *device) -{ - struct scic_sds_remote_device *sci_dev; - - sci_dev = (struct scic_sds_remote_device *)device; - - SET_STATE_HANDLER( - sci_dev, - scic_sds_stp_remote_device_ready_substate_handler_table, - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_ATAPI_ERROR - ); -} -#endif /* !defined(DISABLE_ATAPI) */ - -/* --------------------------------------------------------------------------- */ - -const struct sci_base_state scic_sds_stp_remote_device_ready_substate_table[] = { - [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE] = { - .enter_state = scic_sds_stp_remote_device_ready_idle_substate_enter, - }, - [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD] = { - .enter_state = scic_sds_stp_remote_device_ready_cmd_substate_enter, - }, - [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ] = { - .enter_state = scic_sds_stp_remote_device_ready_ncq_substate_enter, - }, - [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR] = { - .enter_state = scic_sds_stp_remote_device_ready_ncq_error_substate_enter, - }, -#if !defined(DISABLE_ATAPI) - [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_ATAPI_ERROR] = { - .enter_state = scic_sds_stp_remote_device_ready_atapi_error_substate_enter, - }, -#endif - [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET] = { - .enter_state = scic_sds_stp_remote_device_ready_await_reset_substate_enter, - }, -}; diff --git a/drivers/scsi/isci/core/scic_sds_stp_request.c b/drivers/scsi/isci/core/scic_sds_stp_request.c index ab01f8d5506..59c5f1b8f1f 100644 --- a/drivers/scsi/isci/core/scic_sds_stp_request.c +++ b/drivers/scsi/isci/core/scic_sds_stp_request.c @@ -60,9 +60,8 @@ #include "sci_base_state.h" #include "sci_base_state_machine.h" #include "scic_io_request.h" -#include "scic_remote_device.h" #include "scic_sds_controller.h" -#include "scic_sds_remote_device.h" +#include "remote_device.h" #include "scic_sds_request.h" #include "scic_sds_stp_pio_request.h" #include "scic_sds_stp_request.h" diff --git a/drivers/scsi/isci/core/scu_remote_node_context.h b/drivers/scsi/isci/core/scu_remote_node_context.h deleted file mode 100644 index 33745adc826..00000000000 --- a/drivers/scsi/isci/core/scu_remote_node_context.h +++ /dev/null @@ -1,229 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef __SCU_REMOTE_NODE_CONTEXT_HEADER__ -#define __SCU_REMOTE_NODE_CONTEXT_HEADER__ - -/** - * This file contains the structures and constatns used by the SCU hardware to - * describe a remote node context. - * - * - */ - -/** - * struct ssp_remote_node_context - This structure contains the SCU hardware - * definition for an SSP remote node. - * - * - */ -struct ssp_remote_node_context { - /* WORD 0 */ - - /** - * This field is the remote node index assigned for this remote node. All - * remote nodes must have a unique remote node index. The value of the remote - * node index can not exceed the maximum number of remote nodes reported in - * the SCU device context capacity register. - */ - u32 remote_node_index:12; - u32 reserved0_1:4; - - /** - * This field tells the SCU hardware how many simultaneous connections that - * this remote node will support. - */ - u32 remote_node_port_width:4; - - /** - * This field tells the SCU hardware which logical port to associate with this - * remote node. - */ - u32 logical_port_index:3; - u32 reserved0_2:5; - - /** - * This field will enable the I_T nexus loss timer for this remote node. - */ - u32 nexus_loss_timer_enable:1; - - /** - * This field is the for driver debug only and is not used. - */ - u32 check_bit:1; - - /** - * This field must be set to true when the hardware DMAs the remote node - * context to the hardware SRAM. When the remote node is being invalidated - * this field must be set to false. - */ - u32 is_valid:1; - - /** - * This field must be set to true. - */ - u32 is_remote_node_context:1; - - /* WORD 1 - 2 */ - - /** - * This is the low word of the remote device SAS Address - */ - u32 remote_sas_address_lo; - - /** - * This field is the high word of the remote device SAS Address - */ - u32 remote_sas_address_hi; - - /* WORD 3 */ - /** - * This field reprensets the function number assigned to this remote device. - * This value must match the virtual function number that is being used to - * communicate to the device. - */ - u32 function_number:8; - u32 reserved3_1:8; - - /** - * This field provides the driver a way to cheat on the arbitration wait time - * for this remote node. - */ - u32 arbitration_wait_time:16; - - /* WORD 4 */ - /** - * This field tells the SCU hardware how long this device may occupy the - * connection before it must be closed. - */ - u32 connection_occupancy_timeout:16; - - /** - * This field tells the SCU hardware how long to maintain a connection when - * there are no frames being transmitted on the link. - */ - u32 connection_inactivity_timeout:16; - - /* WORD 5 */ - /** - * This field allows the driver to cheat on the arbitration wait time for this - * remote node. - */ - u32 initial_arbitration_wait_time:16; - - /** - * This field is tells the hardware what to program for the connection rate in - * the open address frame. See the SAS spec for valid values. - */ - u32 oaf_connection_rate:4; - - /** - * This field tells the SCU hardware what to program for the features in the - * open address frame. See the SAS spec for valid values. - */ - u32 oaf_features:4; - - /** - * This field tells the SCU hardware what to use for the source zone group in - * the open address frame. See the SAS spec for more details on zoning. - */ - u32 oaf_source_zone_group:8; - - /* WORD 6 */ - /** - * This field tells the SCU hardware what to use as the more capibilities in - * the open address frame. See the SAS Spec for details. - */ - u32 oaf_more_compatibility_features; - - /* WORD 7 */ - u32 reserved7; - -}; - -/** - * struct stp_remote_node_context - This structure contains the SCU hardware - * definition for a STP remote node. - * - * STP Targets are not yet supported so this definition is a placeholder until - * we do support them. - */ -struct stp_remote_node_context { - /** - * Placeholder data for the STP remote node. - */ - u32 data[8]; - -}; - -/** - * This union combines the SAS and SATA remote node definitions. - * - * union scu_remote_node_context - */ -union scu_remote_node_context { - /** - * SSP Remote Node - */ - struct ssp_remote_node_context ssp; - - /** - * STP Remote Node - */ - struct stp_remote_node_context stp; - -}; - -#endif /* __SCU_REMOTE_NODE_CONTEXT_HEADER__ */ diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index 3aceb9219d7..676bcdbfc31 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -55,14 +55,12 @@ #include "isci.h" #include "scic_io_request.h" -#include "scic_remote_device.h" #include "scic_port.h" - #include "port.h" #include "request.h" #include "host.h" #include "probe_roms.h" -#include "core/scic_sds_controller.h" +#include "scic_sds_controller.h" irqreturn_t isci_msix_isr(int vec, void *data) { diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index 21bd7d88e5d..8dc8d1c4698 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -61,7 +61,6 @@ /*#include "task.h"*/ #include "timers.h" #include "remote_device.h" -#include "scic_remote_device.h" #define DRV_NAME "isci" #define SCI_PCI_BAR_COUNT 2 diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index a23ea2c1c7d..f7ca9e8d914 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -62,7 +62,6 @@ #include "isci.h" #include "task.h" #include "sci_controller_constants.h" -#include "scic_remote_device.h" #include "sci_environment.h" #include "probe_roms.h" diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index cf78cf0a674..430b29ed6c7 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -63,7 +63,6 @@ #include #include "isci.h" #include "scic_io_request.h" -#include "scic_remote_device.h" #include "scic_phy.h" #include "scic_sds_phy.h" #include "scic_port.h" diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index 76546fd5b7d..eeac7bbc943 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -64,6 +64,7 @@ struct isci_phy; struct isci_host; +struct scic_sds_phy; enum isci_status { diff --git a/drivers/scsi/isci/probe_roms.c b/drivers/scsi/isci/probe_roms.c index 2df8d8e5d5e..933d81109ea 100644 --- a/drivers/scsi/isci/probe_roms.c +++ b/drivers/scsi/isci/probe_roms.c @@ -33,7 +33,6 @@ #include "isci.h" #include "task.h" #include "sci_controller_constants.h" -#include "scic_remote_device.h" #include "sci_environment.h" #include "probe_roms.h" diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index 1553221fe4d..6b9ea902284 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -52,18 +52,1169 @@ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ +#include "intel_sas.h" +#include "isci.h" +#include "port.h" +#include "remote_device.h" +#include "request.h" +#include "scic_controller.h" +#include "scic_io_request.h" +#include "scic_phy.h" +#include "scic_port.h" +#include "scic_sds_controller.h" +#include "scic_sds_phy.h" +#include "scic_sds_port.h" +#include "remote_node_context.h" +#include "scic_sds_request.h" +#include "sci_environment.h" +#include "sci_util.h" +#include "scu_event_codes.h" +#include "task.h" + +enum sci_status scic_remote_device_stop( + struct scic_sds_remote_device *sci_dev, + u32 timeout) +{ + return sci_dev->state_handlers->stop_handler(sci_dev); +} + + +enum sci_status scic_remote_device_reset( + struct scic_sds_remote_device *sci_dev) +{ + return sci_dev->state_handlers->reset_handler(sci_dev); +} + + +enum sci_status scic_remote_device_reset_complete( + struct scic_sds_remote_device *sci_dev) +{ + return sci_dev->state_handlers->reset_complete_handler(sci_dev); +} + + +enum sas_linkrate scic_remote_device_get_connection_rate( + struct scic_sds_remote_device *sci_dev) +{ + return sci_dev->connection_rate; +} + + +void scic_remote_device_get_protocols( + struct scic_sds_remote_device *sci_dev, + struct smp_discover_response_protocols *pr) +{ + pr->u.all = sci_dev->target_protocols.u.all; +} + +#if !defined(DISABLE_ATAPI) +bool scic_remote_device_is_atapi(struct scic_sds_remote_device *sci_dev) +{ + return sci_dev->is_atapi; +} +#endif + + +/** + * + * + * Remote device timer requirements + */ +#define SCIC_SDS_REMOTE_DEVICE_MINIMUM_TIMER_COUNT (0) +#define SCIC_SDS_REMOTE_DEVICE_MAXIMUM_TIMER_COUNT (SCI_MAX_REMOTE_DEVICES) + + +/** + * + * @sci_dev: The remote device for which the suspend is being requested. + * + * This method invokes the remote device suspend state handler. enum sci_status + */ +enum sci_status scic_sds_remote_device_suspend( + struct scic_sds_remote_device *sci_dev, + u32 suspend_type) +{ + return sci_dev->state_handlers->suspend_handler(sci_dev, suspend_type); +} + +/** + * + * @sci_dev: The remote device for which the event handling is being + * requested. + * @frame_index: This is the frame index that is being processed. + * + * This method invokes the frame handler for the remote device state machine + * enum sci_status + */ +enum sci_status scic_sds_remote_device_frame_handler( + struct scic_sds_remote_device *sci_dev, + u32 frame_index) +{ + return sci_dev->state_handlers->frame_handler(sci_dev, frame_index); +} + +/** + * + * @sci_dev: The remote device for which the event handling is being + * requested. + * @event_code: This is the event code that is to be processed. + * + * This method invokes the remote device event handler. enum sci_status + */ +enum sci_status scic_sds_remote_device_event_handler( + struct scic_sds_remote_device *sci_dev, + u32 event_code) +{ + return sci_dev->state_handlers->event_handler(sci_dev, event_code); +} + +/** + * + * @controller: The controller that is starting the io request. + * @sci_dev: The remote device for which the start io handling is being + * requested. + * @io_request: The io request that is being started. + * + * This method invokes the remote device start io handler. enum sci_status + */ +enum sci_status scic_sds_remote_device_start_io( + struct scic_sds_controller *controller, + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *io_request) +{ + return sci_dev->state_handlers->start_io_handler( + sci_dev, io_request); +} + +/** + * + * @controller: The controller that is completing the io request. + * @sci_dev: The remote device for which the complete io handling is being + * requested. + * @io_request: The io request that is being completed. + * + * This method invokes the remote device complete io handler. enum sci_status + */ +enum sci_status scic_sds_remote_device_complete_io( + struct scic_sds_controller *controller, + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *io_request) +{ + return sci_dev->state_handlers->complete_io_handler( + sci_dev, io_request); +} + +/** + * + * @controller: The controller that is starting the task request. + * @sci_dev: The remote device for which the start task handling is being + * requested. + * @io_request: The task request that is being started. + * + * This method invokes the remote device start task handler. enum sci_status + */ +enum sci_status scic_sds_remote_device_start_task( + struct scic_sds_controller *controller, + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *io_request) +{ + return sci_dev->state_handlers->start_task_handler( + sci_dev, io_request); +} + +/** + * + * @controller: The controller that is completing the task request. + * @sci_dev: The remote device for which the complete task handling is + * being requested. + * @io_request: The task request that is being completed. + * + * This method invokes the remote device complete task handler. enum sci_status + */ + +/** + * + * @sci_dev: + * @request: + * + * This method takes the request and bulids an appropriate SCU context for the + * request and then requests the controller to post the request. none + */ +void scic_sds_remote_device_post_request( + struct scic_sds_remote_device *sci_dev, + u32 request) +{ + u32 context; + + context = scic_sds_remote_device_build_command_context(sci_dev, request); + + scic_sds_controller_post_request( + scic_sds_remote_device_get_controller(sci_dev), + context + ); +} + +#if !defined(DISABLE_ATAPI) +/** + * + * @sci_dev: The device to be checked. + * + * This method check the signature fis of a stp device to decide whether a + * device is atapi or not. true if a device is atapi device. False if a device + * is not atapi. + */ +bool scic_sds_remote_device_is_atapi( + struct scic_sds_remote_device *sci_dev) +{ + if (!sci_dev->target_protocols.u.bits.attached_stp_target) + return false; + else if (sci_dev->is_direct_attached) { + struct scic_sds_phy *phy; + struct scic_sata_phy_properties properties; + struct sata_fis_reg_d2h *signature_fis; + phy = scic_sds_port_get_a_connected_phy(sci_dev->owning_port); + scic_sata_phy_get_properties(phy, &properties); + + /* decode the signature fis. */ + signature_fis = &(properties.signature_fis); + + if ((signature_fis->sector_count == 0x01) + && (signature_fis->lba_low == 0x01) + && (signature_fis->lba_mid == 0x14) + && (signature_fis->lba_high == 0xEB) + && ((signature_fis->device & 0x5F) == 0x00) + ) { + /* An ATA device supporting the PACKET command set. */ + return true; + } else + return false; + } else { + /* Expander supported ATAPI device is not currently supported. */ + return false; + } +} +#endif + +/** + * + * @user_parameter: This is cast to a remote device object. + * + * This method is called once the remote node context is ready to be freed. + * The remote device can now report that its stop operation is complete. none + */ +static void scic_sds_cb_remote_device_rnc_destruct_complete( + void *user_parameter) +{ + struct scic_sds_remote_device *sci_dev; + + sci_dev = (struct scic_sds_remote_device *)user_parameter; + + BUG_ON(sci_dev->started_request_count != 0); + + sci_base_state_machine_change_state(&sci_dev->state_machine, + SCI_BASE_REMOTE_DEVICE_STATE_STOPPED); +} + +/** + * + * @user_parameter: This is cast to a remote device object. + * + * This method is called once the remote node context has transisitioned to a + * ready state. This is the indication that the remote device object can also + * transition to ready. none + */ +static void scic_sds_remote_device_resume_complete_handler( + void *user_parameter) +{ + struct scic_sds_remote_device *sci_dev; + + sci_dev = (struct scic_sds_remote_device *)user_parameter; + + if ( + sci_base_state_machine_get_state(&sci_dev->state_machine) + != SCI_BASE_REMOTE_DEVICE_STATE_READY + ) { + sci_base_state_machine_change_state( + &sci_dev->state_machine, + SCI_BASE_REMOTE_DEVICE_STATE_READY + ); + } +} + +/** + * + * @device: This parameter specifies the device for which the request is being + * started. + * @request: This parameter specifies the request being started. + * @status: This parameter specifies the current start operation status. + * + * This method will perform the STP request start processing common to IO + * requests and task requests of all types. none + */ +void scic_sds_remote_device_start_request( + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *sci_req, + enum sci_status status) +{ + /* We still have a fault in starting the io complete it on the port */ + if (status == SCI_SUCCESS) + scic_sds_remote_device_increment_request_count(sci_dev); + else{ + sci_dev->owning_port->state_handlers->complete_io_handler( + sci_dev->owning_port, sci_dev, sci_req + ); + } +} + + +/** + * + * @request: This parameter specifies the request being continued. + * + * This method will continue to post tc for a STP request. This method usually + * serves as a callback when RNC gets resumed during a task management + * sequence. none + */ +void scic_sds_remote_device_continue_request(void *dev) +{ + struct scic_sds_remote_device *sci_dev = dev; + + /* we need to check if this request is still valid to continue. */ + if (sci_dev->working_request) + scic_controller_continue_io(sci_dev->working_request); +} + +/** + * This method will terminate all of the IO requests in the controllers IO + * request table that were targeted for this device. + * @sci_dev: This parameter specifies the remote device for which to + * attempt to terminate all requests. + * + * This method returns an indication as to whether all requests were + * successfully terminated. If a single request fails to be terminated, then + * this method will return the failure. + */ +static enum sci_status scic_sds_remote_device_terminate_requests( + struct scic_sds_remote_device *sci_dev) +{ + enum sci_status status = SCI_SUCCESS; + enum sci_status terminate_status = SCI_SUCCESS; + struct scic_sds_request *sci_req; + u32 index; + u32 request_count = sci_dev->started_request_count; + + for (index = 0; + (index < SCI_MAX_IO_REQUESTS) && (request_count > 0); + index++) { + sci_req = sci_dev->owning_port->owning_controller->io_request_table[index]; + + if ((sci_req != NULL) && (sci_req->target_device == sci_dev)) { + terminate_status = scic_controller_terminate_request( + sci_dev->owning_port->owning_controller, + sci_dev, + sci_req + ); + + if (terminate_status != SCI_SUCCESS) + status = terminate_status; + + request_count--; + } + } + + return status; +} + +static enum sci_status +default_device_handler(struct scic_sds_remote_device *sci_dev, + const char *func) +{ + dev_warn(scirdev_to_dev(sci_dev), + "%s: in wrong state: %d\n", func, + sci_base_state_machine_get_state(&sci_dev->state_machine)); + return SCI_FAILURE_INVALID_STATE; +} + +enum sci_status scic_sds_remote_device_default_start_handler( + struct scic_sds_remote_device *sci_dev) +{ + return default_device_handler(sci_dev, __func__); +} + +static enum sci_status scic_sds_remote_device_default_stop_handler( + struct scic_sds_remote_device *sci_dev) +{ + return default_device_handler(sci_dev, __func__); +} + +enum sci_status scic_sds_remote_device_default_fail_handler( + struct scic_sds_remote_device *sci_dev) +{ + return default_device_handler(sci_dev, __func__); +} + +enum sci_status scic_sds_remote_device_default_destruct_handler( + struct scic_sds_remote_device *sci_dev) +{ + return default_device_handler(sci_dev, __func__); +} + +enum sci_status scic_sds_remote_device_default_reset_handler( + struct scic_sds_remote_device *sci_dev) +{ + return default_device_handler(sci_dev, __func__); +} + +enum sci_status scic_sds_remote_device_default_reset_complete_handler( + struct scic_sds_remote_device *sci_dev) +{ + return default_device_handler(sci_dev, __func__); +} + +enum sci_status scic_sds_remote_device_default_suspend_handler( + struct scic_sds_remote_device *sci_dev, u32 suspend_type) +{ + return default_device_handler(sci_dev, __func__); +} + +enum sci_status scic_sds_remote_device_default_resume_handler( + struct scic_sds_remote_device *sci_dev) +{ + return default_device_handler(sci_dev, __func__); +} + +/** + * + * @device: The struct scic_sds_remote_device which is then cast into a + * struct scic_sds_remote_device. + * @event_code: The event code that the struct scic_sds_controller wants the device + * object to process. + * + * This method is the default event handler. It will call the RNC state + * machine handler for any RNC events otherwise it will log a warning and + * returns a failure. enum sci_status SCI_FAILURE_INVALID_STATE + */ +static enum sci_status scic_sds_remote_device_core_event_handler( + struct scic_sds_remote_device *sci_dev, + u32 event_code, + bool is_ready_state) +{ + enum sci_status status; + + switch (scu_get_event_type(event_code)) { + case SCU_EVENT_TYPE_RNC_OPS_MISC: + case SCU_EVENT_TYPE_RNC_SUSPEND_TX: + case SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX: + status = scic_sds_remote_node_context_event_handler(&sci_dev->rnc, event_code); + break; + case SCU_EVENT_TYPE_PTX_SCHEDULE_EVENT: + + if (scu_get_event_code(event_code) == SCU_EVENT_IT_NEXUS_TIMEOUT) { + status = SCI_SUCCESS; + + /* Suspend the associated RNC */ + scic_sds_remote_node_context_suspend(&sci_dev->rnc, + SCI_SOFTWARE_SUSPENSION, + NULL, NULL); + + dev_dbg(scirdev_to_dev(sci_dev), + "%s: device: %p event code: %x: %s\n", + __func__, sci_dev, event_code, + (is_ready_state) + ? "I_T_Nexus_Timeout event" + : "I_T_Nexus_Timeout event in wrong state"); + + break; + } + /* Else, fall through and treat as unhandled... */ + + default: + dev_dbg(scirdev_to_dev(sci_dev), + "%s: device: %p event code: %x: %s\n", + __func__, sci_dev, event_code, + (is_ready_state) + ? "unexpected event" + : "unexpected event in wrong state"); + status = SCI_FAILURE_INVALID_STATE; + break; + } + + return status; +} +/** + * + * @device: The struct scic_sds_remote_device which is then cast into a + * struct scic_sds_remote_device. + * @event_code: The event code that the struct scic_sds_controller wants the device + * object to process. + * + * This method is the default event handler. It will call the RNC state + * machine handler for any RNC events otherwise it will log a warning and + * returns a failure. enum sci_status SCI_FAILURE_INVALID_STATE + */ +static enum sci_status scic_sds_remote_device_default_event_handler( + struct scic_sds_remote_device *sci_dev, + u32 event_code) +{ + return scic_sds_remote_device_core_event_handler(sci_dev, + event_code, + false); +} + +/** + * + * @device: The struct scic_sds_remote_device which is then cast into a + * struct scic_sds_remote_device. + * @frame_index: The frame index for which the struct scic_sds_controller wants this + * device object to process. + * + * This method is the default unsolicited frame handler. It logs a warning, + * releases the frame and returns a failure. enum sci_status + * SCI_FAILURE_INVALID_STATE + */ +enum sci_status scic_sds_remote_device_default_frame_handler( + struct scic_sds_remote_device *sci_dev, + u32 frame_index) +{ + dev_warn(scirdev_to_dev(sci_dev), + "%s: SCIC Remote Device requested to handle frame %x " + "while in wrong state %d\n", + __func__, + frame_index, + sci_base_state_machine_get_state( + &sci_dev->state_machine)); + + /* Return the frame back to the controller */ + scic_sds_controller_release_frame( + scic_sds_remote_device_get_controller(sci_dev), frame_index + ); + + return SCI_FAILURE_INVALID_STATE; +} + +enum sci_status scic_sds_remote_device_default_start_request_handler( + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *request) +{ + return default_device_handler(sci_dev, __func__); +} + +enum sci_status scic_sds_remote_device_default_complete_request_handler( + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *request) +{ + return default_device_handler(sci_dev, __func__); +} + +enum sci_status scic_sds_remote_device_default_continue_request_handler( + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *request) +{ + return default_device_handler(sci_dev, __func__); +} + +/** + * + * @device: The struct scic_sds_remote_device which is then cast into a + * struct scic_sds_remote_device. + * @frame_index: The frame index for which the struct scic_sds_controller wants this + * device object to process. + * + * This method is a general ssp frame handler. In most cases the device object + * needs to route the unsolicited frame processing to the io request object. + * This method decodes the tag for the io request object and routes the + * unsolicited frame to that object. enum sci_status SCI_FAILURE_INVALID_STATE + */ +enum sci_status scic_sds_remote_device_general_frame_handler( + struct scic_sds_remote_device *sci_dev, + u32 frame_index) +{ + enum sci_status result; + struct sci_ssp_frame_header *frame_header; + struct scic_sds_request *io_request; + + result = scic_sds_unsolicited_frame_control_get_header( + &(scic_sds_remote_device_get_controller(sci_dev)->uf_control), + frame_index, + (void **)&frame_header + ); + + if (SCI_SUCCESS == result) { + io_request = scic_sds_controller_get_io_request_from_tag( + scic_sds_remote_device_get_controller(sci_dev), frame_header->tag); + + if ((io_request == NULL) + || (io_request->target_device != sci_dev)) { + /* + * We could not map this tag to a valid IO request + * Just toss the frame and continue */ + scic_sds_controller_release_frame( + scic_sds_remote_device_get_controller(sci_dev), frame_index + ); + } else { + /* The IO request is now in charge of releasing the frame */ + result = io_request->state_handlers->frame_handler( + io_request, frame_index); + } + } + + return result; +} + +/** + * + * @[in]: sci_dev This is the device object that is receiving the event. + * @[in]: event_code The event code to process. + * + * This is a common method for handling events reported to the remote device + * from the controller object. enum sci_status + */ +enum sci_status scic_sds_remote_device_general_event_handler( + struct scic_sds_remote_device *sci_dev, + u32 event_code) +{ + return scic_sds_remote_device_core_event_handler(sci_dev, + event_code, + true); +} + +/* + * ***************************************************************************** + * * STOPPED STATE HANDLERS + * ***************************************************************************** */ + +/** + * + * @device: + * + * This method takes the struct scic_sds_remote_device from a stopped state and + * attempts to start it. The RNC buffer for the device is constructed and the + * device state machine is transitioned to the + * SCIC_BASE_REMOTE_DEVICE_STATE_STARTING. enum sci_status SCI_SUCCESS if there is + * an RNC buffer available to construct the remote device. + * SCI_FAILURE_INSUFFICIENT_RESOURCES if there is no RNC buffer available in + * which to construct the remote device. + */ +static enum sci_status scic_sds_remote_device_stopped_state_start_handler( + struct scic_sds_remote_device *sci_dev) +{ + enum sci_status status; + + status = scic_sds_remote_node_context_resume(&sci_dev->rnc, + scic_sds_remote_device_resume_complete_handler, sci_dev); + + if (status == SCI_SUCCESS) + sci_base_state_machine_change_state(&sci_dev->state_machine, + SCI_BASE_REMOTE_DEVICE_STATE_STARTING); + + return status; +} + +static enum sci_status scic_sds_remote_device_stopped_state_stop_handler( + struct scic_sds_remote_device *sci_dev) +{ + return SCI_SUCCESS; +} + +/** + * + * @sci_dev: The struct scic_sds_remote_device which is cast into a + * struct scic_sds_remote_device. + * + * This method will destruct a struct scic_sds_remote_device that is in a stopped + * state. This is the only state from which a destruct request will succeed. + * The RNi for this struct scic_sds_remote_device is returned to the free pool and the + * device object transitions to the SCI_BASE_REMOTE_DEVICE_STATE_FINAL. + * enum sci_status SCI_SUCCESS + */ +static enum sci_status scic_sds_remote_device_stopped_state_destruct_handler( + struct scic_sds_remote_device *sci_dev) +{ + struct scic_sds_controller *scic; + + scic = scic_sds_remote_device_get_controller(sci_dev); + scic_sds_controller_free_remote_node_context(scic, sci_dev, + sci_dev->rnc.remote_node_index); + sci_dev->rnc.remote_node_index = SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX; + + sci_base_state_machine_change_state(&sci_dev->state_machine, + SCI_BASE_REMOTE_DEVICE_STATE_FINAL); + + return SCI_SUCCESS; +} + +/* + * ***************************************************************************** + * * STARTING STATE HANDLERS + * ***************************************************************************** */ + +static enum sci_status scic_sds_remote_device_starting_state_stop_handler( + struct scic_sds_remote_device *sci_dev) +{ + /* + * This device has not yet started so there had better be no IO requests + */ + BUG_ON(sci_dev->started_request_count != 0); + + /* + * Destroy the remote node context + */ + scic_sds_remote_node_context_destruct(&sci_dev->rnc, + scic_sds_cb_remote_device_rnc_destruct_complete, sci_dev); + + /* + * Transition to the stopping state and wait for the remote node to + * complete being posted and invalidated. + */ + sci_base_state_machine_change_state(&sci_dev->state_machine, + SCI_BASE_REMOTE_DEVICE_STATE_STOPPING); + + return SCI_SUCCESS; +} + +enum sci_status scic_sds_remote_device_ready_state_stop_handler( + struct scic_sds_remote_device *sci_dev) +{ + enum sci_status status = SCI_SUCCESS; + + /* Request the parent state machine to transition to the stopping state */ + sci_base_state_machine_change_state(&sci_dev->state_machine, + SCI_BASE_REMOTE_DEVICE_STATE_STOPPING); + + if (sci_dev->started_request_count == 0) { + scic_sds_remote_node_context_destruct(&sci_dev->rnc, + scic_sds_cb_remote_device_rnc_destruct_complete, + sci_dev); + } else + status = scic_sds_remote_device_terminate_requests(sci_dev); + + return status; +} + +/** + * + * @device: The struct scic_sds_remote_device object which is cast to a + * struct scic_sds_remote_device object. + * + * This is the ready state device reset handler enum sci_status + */ +enum sci_status scic_sds_remote_device_ready_state_reset_handler( + struct scic_sds_remote_device *sci_dev) +{ + /* Request the parent state machine to transition to the stopping state */ + sci_base_state_machine_change_state(&sci_dev->state_machine, + SCI_BASE_REMOTE_DEVICE_STATE_RESETTING); + + return SCI_SUCCESS; +} + +/* + * This method will attempt to start a task request for this device object. The + * remote device object will issue the start request for the task and if + * successful it will start the request for the port object then increment its + * own requet count. enum sci_status SCI_SUCCESS if the task request is started for + * this device object. SCI_FAILURE_INSUFFICIENT_RESOURCES if the io request + * object could not get the resources to start. + */ +static enum sci_status scic_sds_remote_device_ready_state_start_task_handler( + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *request) +{ + enum sci_status result; + + /* See if the port is in a state where we can start the IO request */ + result = scic_sds_port_start_io( + scic_sds_remote_device_get_port(sci_dev), sci_dev, request); + + if (result == SCI_SUCCESS) { + result = scic_sds_remote_node_context_start_task(&sci_dev->rnc, + request); + if (result == SCI_SUCCESS) + result = scic_sds_request_start(request); + + scic_sds_remote_device_start_request(sci_dev, request, result); + } + + return result; +} + +/* + * This method will attempt to start an io request for this device object. The + * remote device object will issue the start request for the io and if + * successful it will start the request for the port object then increment its + * own requet count. enum sci_status SCI_SUCCESS if the io request is started for + * this device object. SCI_FAILURE_INSUFFICIENT_RESOURCES if the io request + * object could not get the resources to start. + */ +static enum sci_status scic_sds_remote_device_ready_state_start_io_handler( + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *request) +{ + enum sci_status result; + + /* See if the port is in a state where we can start the IO request */ + result = scic_sds_port_start_io( + scic_sds_remote_device_get_port(sci_dev), sci_dev, request); + + if (result == SCI_SUCCESS) { + result = scic_sds_remote_node_context_start_io(&sci_dev->rnc, request); + if (result == SCI_SUCCESS) + result = scic_sds_request_start(request); + + scic_sds_remote_device_start_request(sci_dev, request, result); + } + + return result; +} + +/* + * This method will complete the request for the remote device object. The + * method will call the completion handler for the request object and if + * successful it will complete the request on the port object then decrement + * its own started_request_count. enum sci_status + */ +static enum sci_status scic_sds_remote_device_ready_state_complete_request_handler( + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *request) +{ + enum sci_status result; + + result = scic_sds_request_complete(request); + + if (result != SCI_SUCCESS) + return result; + + /* See if the port is in a state + * where we can start the IO request */ + result = scic_sds_port_complete_io( + scic_sds_remote_device_get_port(sci_dev), + sci_dev, request); + + if (result == SCI_SUCCESS) + scic_sds_remote_device_decrement_request_count(sci_dev); + + return result; +} + +/* + * ***************************************************************************** + * * STOPPING STATE HANDLERS + * ***************************************************************************** */ + +/** + * + * @sci_dev: The struct scic_sds_remote_device which is cast into a + * struct scic_sds_remote_device. + * + * This method will stop a struct scic_sds_remote_device that is already in the + * SCI_BASE_REMOTE_DEVICE_STATE_STOPPING state. This is not considered an error + * since we allow a stop request on a device that is alreay stopping or + * stopped. enum sci_status SCI_SUCCESS + */ +static enum sci_status scic_sds_remote_device_stopping_state_stop_handler( + struct scic_sds_remote_device *device) +{ + /* + * All requests should have been terminated, but if there is an + * attempt to stop a device already in the stopping state, then + * try again to terminate. */ + return scic_sds_remote_device_terminate_requests(device); +} -#include "isci.h" -#include "scic_io_request.h" -#include "scic_remote_device.h" -#include "scic_phy.h" -#include "scic_port.h" -#include "port.h" -#include "remote_device.h" -#include "request.h" -#include "task.h" +/** + * + * @device: The device object for which the request is completing. + * @request: The task request that is being completed. + * + * This method completes requests for this struct scic_sds_remote_device while it is + * in the SCI_BASE_REMOTE_DEVICE_STATE_STOPPING state. This method calls the + * complete method for the request object and if that is successful the port + * object is called to complete the task request. Then the device object itself + * completes the task request. If struct scic_sds_remote_device started_request_count + * goes to 0 and the invalidate RNC request has completed the device object can + * transition to the SCI_BASE_REMOTE_DEVICE_STATE_STOPPED. enum sci_status + */ +static enum sci_status scic_sds_remote_device_stopping_state_complete_request_handler( + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *request) +{ + enum sci_status status = SCI_SUCCESS; + + status = scic_sds_request_complete(request); + + if (status != SCI_SUCCESS) + return status; + + status = scic_sds_port_complete_io(scic_sds_remote_device_get_port(sci_dev), + sci_dev, request); + if (status != SCI_SUCCESS) + return status; + + scic_sds_remote_device_decrement_request_count(sci_dev); + + if (scic_sds_remote_device_get_request_count(sci_dev) == 0) + scic_sds_remote_node_context_destruct(&sci_dev->rnc, + scic_sds_cb_remote_device_rnc_destruct_complete, + sci_dev); + return SCI_SUCCESS; +} + +/** + * + * @device: The struct scic_sds_remote_device which is to be cast into a + * struct scic_sds_remote_device object. + * + * This method will complete the reset operation when the device is in the + * resetting state. enum sci_status + */ +static enum sci_status scic_sds_remote_device_resetting_state_reset_complete_handler( + struct scic_sds_remote_device *sci_dev) +{ + + sci_base_state_machine_change_state( + &sci_dev->state_machine, + SCI_BASE_REMOTE_DEVICE_STATE_READY + ); + + return SCI_SUCCESS; +} + +/** + * + * @device: The struct scic_sds_remote_device which is to be cast into a + * struct scic_sds_remote_device object. + * + * This method will stop the remote device while in the resetting state. + * enum sci_status + */ +static enum sci_status scic_sds_remote_device_resetting_state_stop_handler( + struct scic_sds_remote_device *sci_dev) +{ + sci_base_state_machine_change_state( + &sci_dev->state_machine, + SCI_BASE_REMOTE_DEVICE_STATE_STOPPING + ); + + return SCI_SUCCESS; +} + +/* + * This method completes requests for this struct scic_sds_remote_device while it is + * in the SCI_BASE_REMOTE_DEVICE_STATE_RESETTING state. This method calls the + * complete method for the request object and if that is successful the port + * object is called to complete the task request. Then the device object itself + * completes the task request. enum sci_status + */ +static enum sci_status scic_sds_remote_device_resetting_state_complete_request_handler( + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *request) +{ + enum sci_status status = SCI_SUCCESS; + + status = scic_sds_request_complete(request); + + if (status == SCI_SUCCESS) { + status = scic_sds_port_complete_io( + scic_sds_remote_device_get_port(sci_dev), + sci_dev, request); + + if (status == SCI_SUCCESS) { + scic_sds_remote_device_decrement_request_count(sci_dev); + } + } + + return status; +} + +static const struct scic_sds_remote_device_state_handler scic_sds_remote_device_state_handler_table[] = { + [SCI_BASE_REMOTE_DEVICE_STATE_INITIAL] = { + .start_handler = scic_sds_remote_device_default_start_handler, + .stop_handler = scic_sds_remote_device_default_stop_handler, + .fail_handler = scic_sds_remote_device_default_fail_handler, + .destruct_handler = scic_sds_remote_device_default_destruct_handler, + .reset_handler = scic_sds_remote_device_default_reset_handler, + .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, + .start_io_handler = scic_sds_remote_device_default_start_request_handler, + .complete_io_handler = scic_sds_remote_device_default_complete_request_handler, + .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, + .start_task_handler = scic_sds_remote_device_default_start_request_handler, + .complete_task_handler = scic_sds_remote_device_default_complete_request_handler, + .suspend_handler = scic_sds_remote_device_default_suspend_handler, + .resume_handler = scic_sds_remote_device_default_resume_handler, + .event_handler = scic_sds_remote_device_default_event_handler, + .frame_handler = scic_sds_remote_device_default_frame_handler + }, + [SCI_BASE_REMOTE_DEVICE_STATE_STOPPED] = { + .start_handler = scic_sds_remote_device_stopped_state_start_handler, + .stop_handler = scic_sds_remote_device_stopped_state_stop_handler, + .fail_handler = scic_sds_remote_device_default_fail_handler, + .destruct_handler = scic_sds_remote_device_stopped_state_destruct_handler, + .reset_handler = scic_sds_remote_device_default_reset_handler, + .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, + .start_io_handler = scic_sds_remote_device_default_start_request_handler, + .complete_io_handler = scic_sds_remote_device_default_complete_request_handler, + .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, + .start_task_handler = scic_sds_remote_device_default_start_request_handler, + .complete_task_handler = scic_sds_remote_device_default_complete_request_handler, + .suspend_handler = scic_sds_remote_device_default_suspend_handler, + .resume_handler = scic_sds_remote_device_default_resume_handler, + .event_handler = scic_sds_remote_device_default_event_handler, + .frame_handler = scic_sds_remote_device_default_frame_handler + }, + [SCI_BASE_REMOTE_DEVICE_STATE_STARTING] = { + .start_handler = scic_sds_remote_device_default_start_handler, + .stop_handler = scic_sds_remote_device_starting_state_stop_handler, + .fail_handler = scic_sds_remote_device_default_fail_handler, + .destruct_handler = scic_sds_remote_device_default_destruct_handler, + .reset_handler = scic_sds_remote_device_default_reset_handler, + .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, + .start_io_handler = scic_sds_remote_device_default_start_request_handler, + .complete_io_handler = scic_sds_remote_device_default_complete_request_handler, + .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, + .start_task_handler = scic_sds_remote_device_default_start_request_handler, + .complete_task_handler = scic_sds_remote_device_default_complete_request_handler, + .suspend_handler = scic_sds_remote_device_default_suspend_handler, + .resume_handler = scic_sds_remote_device_default_resume_handler, + .event_handler = scic_sds_remote_device_general_event_handler, + .frame_handler = scic_sds_remote_device_default_frame_handler + }, + [SCI_BASE_REMOTE_DEVICE_STATE_READY] = { + .start_handler = scic_sds_remote_device_default_start_handler, + .stop_handler = scic_sds_remote_device_ready_state_stop_handler, + .fail_handler = scic_sds_remote_device_default_fail_handler, + .destruct_handler = scic_sds_remote_device_default_destruct_handler, + .reset_handler = scic_sds_remote_device_ready_state_reset_handler, + .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, + .start_io_handler = scic_sds_remote_device_ready_state_start_io_handler, + .complete_io_handler = scic_sds_remote_device_ready_state_complete_request_handler, + .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, + .start_task_handler = scic_sds_remote_device_ready_state_start_task_handler, + .complete_task_handler = scic_sds_remote_device_ready_state_complete_request_handler, + .suspend_handler = scic_sds_remote_device_default_suspend_handler, + .resume_handler = scic_sds_remote_device_default_resume_handler, + .event_handler = scic_sds_remote_device_general_event_handler, + .frame_handler = scic_sds_remote_device_general_frame_handler, + }, + [SCI_BASE_REMOTE_DEVICE_STATE_STOPPING] = { + .start_handler = scic_sds_remote_device_default_start_handler, + .stop_handler = scic_sds_remote_device_stopping_state_stop_handler, + .fail_handler = scic_sds_remote_device_default_fail_handler, + .destruct_handler = scic_sds_remote_device_default_destruct_handler, + .reset_handler = scic_sds_remote_device_default_reset_handler, + .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, + .start_io_handler = scic_sds_remote_device_default_start_request_handler, + .complete_io_handler = scic_sds_remote_device_stopping_state_complete_request_handler, + .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, + .start_task_handler = scic_sds_remote_device_default_start_request_handler, + .complete_task_handler = scic_sds_remote_device_stopping_state_complete_request_handler, + .suspend_handler = scic_sds_remote_device_default_suspend_handler, + .resume_handler = scic_sds_remote_device_default_resume_handler, + .event_handler = scic_sds_remote_device_general_event_handler, + .frame_handler = scic_sds_remote_device_general_frame_handler + }, + [SCI_BASE_REMOTE_DEVICE_STATE_FAILED] = { + .start_handler = scic_sds_remote_device_default_start_handler, + .stop_handler = scic_sds_remote_device_default_stop_handler, + .fail_handler = scic_sds_remote_device_default_fail_handler, + .destruct_handler = scic_sds_remote_device_default_destruct_handler, + .reset_handler = scic_sds_remote_device_default_reset_handler, + .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, + .start_io_handler = scic_sds_remote_device_default_start_request_handler, + .complete_io_handler = scic_sds_remote_device_default_complete_request_handler, + .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, + .start_task_handler = scic_sds_remote_device_default_start_request_handler, + .complete_task_handler = scic_sds_remote_device_default_complete_request_handler, + .suspend_handler = scic_sds_remote_device_default_suspend_handler, + .resume_handler = scic_sds_remote_device_default_resume_handler, + .event_handler = scic_sds_remote_device_default_event_handler, + .frame_handler = scic_sds_remote_device_general_frame_handler + }, + [SCI_BASE_REMOTE_DEVICE_STATE_RESETTING] = { + .start_handler = scic_sds_remote_device_default_start_handler, + .stop_handler = scic_sds_remote_device_resetting_state_stop_handler, + .fail_handler = scic_sds_remote_device_default_fail_handler, + .destruct_handler = scic_sds_remote_device_default_destruct_handler, + .reset_handler = scic_sds_remote_device_default_reset_handler, + .reset_complete_handler = scic_sds_remote_device_resetting_state_reset_complete_handler, + .start_io_handler = scic_sds_remote_device_default_start_request_handler, + .complete_io_handler = scic_sds_remote_device_resetting_state_complete_request_handler, + .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, + .start_task_handler = scic_sds_remote_device_default_start_request_handler, + .complete_task_handler = scic_sds_remote_device_resetting_state_complete_request_handler, + .suspend_handler = scic_sds_remote_device_default_suspend_handler, + .resume_handler = scic_sds_remote_device_default_resume_handler, + .event_handler = scic_sds_remote_device_default_event_handler, + .frame_handler = scic_sds_remote_device_general_frame_handler + }, + [SCI_BASE_REMOTE_DEVICE_STATE_FINAL] = { + .start_handler = scic_sds_remote_device_default_start_handler, + .stop_handler = scic_sds_remote_device_default_stop_handler, + .fail_handler = scic_sds_remote_device_default_fail_handler, + .destruct_handler = scic_sds_remote_device_default_destruct_handler, + .reset_handler = scic_sds_remote_device_default_reset_handler, + .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, + .start_io_handler = scic_sds_remote_device_default_start_request_handler, + .complete_io_handler = scic_sds_remote_device_default_complete_request_handler, + .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, + .start_task_handler = scic_sds_remote_device_default_start_request_handler, + .complete_task_handler = scic_sds_remote_device_default_complete_request_handler, + .suspend_handler = scic_sds_remote_device_default_suspend_handler, + .resume_handler = scic_sds_remote_device_default_resume_handler, + .event_handler = scic_sds_remote_device_default_event_handler, + .frame_handler = scic_sds_remote_device_default_frame_handler + } +}; + +static void scic_sds_remote_device_initial_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_device *sci_dev = (struct scic_sds_remote_device *)object; + + sci_dev = container_of(object, typeof(*sci_dev), parent); + SET_STATE_HANDLER(sci_dev, scic_sds_remote_device_state_handler_table, + SCI_BASE_REMOTE_DEVICE_STATE_INITIAL); + + /* Initial state is a transitional state to the stopped state */ + sci_base_state_machine_change_state(&sci_dev->state_machine, + SCI_BASE_REMOTE_DEVICE_STATE_STOPPED); +} + +/** + * isci_remote_device_change_state() - This function gets the status of the + * remote_device object. + * @isci_device: This parameter points to the isci_remote_device object + * + * status of the object as a isci_status enum. + */ +void isci_remote_device_change_state( + struct isci_remote_device *isci_device, + enum isci_status status) +{ + unsigned long flags; + + spin_lock_irqsave(&isci_device->state_lock, flags); + isci_device->status = status; + spin_unlock_irqrestore(&isci_device->state_lock, flags); +} +/** + * scic_remote_device_destruct() - free remote node context and destruct + * @remote_device: This parameter specifies the remote device to be destructed. + * + * Remote device objects are a limited resource. As such, they must be + * protected. Thus calls to construct and destruct are mutually exclusive and + * non-reentrant. The return value shall indicate if the device was + * successfully destructed or if some failure occurred. enum sci_status This value + * is returned if the device is successfully destructed. + * SCI_FAILURE_INVALID_REMOTE_DEVICE This value is returned if the supplied + * device isn't valid (e.g. it's already been destoryed, the handle isn't + * valid, etc.). + */ +static enum sci_status scic_remote_device_destruct(struct scic_sds_remote_device *sci_dev) +{ + return sci_dev->state_handlers->destruct_handler(sci_dev); +} /** * isci_remote_device_deconstruct() - This function frees an isci_remote_device. @@ -98,6 +1249,418 @@ static void isci_remote_device_deconstruct(struct isci_host *ihost, struct isci_ wake_up(&ihost->eventq); } +/** + * isci_remote_device_stop_complete() - This function is called by the scic + * when the remote device stop has completed. We mark the isci device as not + * ready and remove the isci remote device. + * @ihost: This parameter specifies the isci host object. + * @idev: This parameter specifies the remote device. + * @status: This parameter specifies status of the completion. + * + */ +static void isci_remote_device_stop_complete(struct isci_host *ihost, + struct isci_remote_device *idev) +{ + dev_dbg(&ihost->pdev->dev, "%s: complete idev = %p\n", __func__, idev); + + isci_remote_device_change_state(idev, isci_stopped); + + /* after stop, we can tear down resources. */ + isci_remote_device_deconstruct(ihost, idev); +} + +static void scic_sds_remote_device_stopped_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_device *sci_dev; + struct scic_sds_controller *scic; + struct isci_remote_device *idev; + struct isci_host *ihost; + u32 prev_state; + + sci_dev = container_of(object, typeof(*sci_dev), parent); + scic = scic_sds_remote_device_get_controller(sci_dev); + ihost = sci_object_get_association(scic); + idev = sci_object_get_association(sci_dev); + + SET_STATE_HANDLER(sci_dev, scic_sds_remote_device_state_handler_table, + SCI_BASE_REMOTE_DEVICE_STATE_STOPPED); + + /* If we are entering from the stopping state let the SCI User know that + * the stop operation has completed. + */ + prev_state = sci_dev->state_machine.previous_state_id; + if (prev_state == SCI_BASE_REMOTE_DEVICE_STATE_STOPPING) + isci_remote_device_stop_complete(ihost, idev); + + scic_sds_controller_remote_device_stopped(scic, sci_dev); +} + +static void scic_sds_remote_device_starting_state_enter(struct sci_base_object *object) +{ + struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev), + parent); + struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); + struct isci_host *ihost = sci_object_get_association(scic); + struct isci_remote_device *idev = sci_object_get_association(sci_dev); + + SET_STATE_HANDLER(sci_dev, scic_sds_remote_device_state_handler_table, + SCI_BASE_REMOTE_DEVICE_STATE_STARTING); + + isci_remote_device_not_ready(ihost, idev, + SCIC_REMOTE_DEVICE_NOT_READY_START_REQUESTED); +} + +static void scic_sds_remote_device_ready_state_enter(struct sci_base_object *object) +{ + struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev), + parent); + struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); + struct isci_host *ihost = sci_object_get_association(scic); + struct isci_remote_device *idev = sci_object_get_association(sci_dev); + + SET_STATE_HANDLER(sci_dev, + scic_sds_remote_device_state_handler_table, + SCI_BASE_REMOTE_DEVICE_STATE_READY); + + scic->remote_device_sequence[sci_dev->rnc.remote_node_index]++; + + if (sci_dev->has_ready_substate_machine) + sci_base_state_machine_start(&sci_dev->ready_substate_machine); + else + isci_remote_device_ready(ihost, idev); +} + +static void scic_sds_remote_device_ready_state_exit( + struct sci_base_object *object) +{ + struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev), + parent); + if (sci_dev->has_ready_substate_machine) + sci_base_state_machine_stop(&sci_dev->ready_substate_machine); + else { + struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); + struct isci_host *ihost = sci_object_get_association(scic); + struct isci_remote_device *idev = sci_object_get_association(sci_dev); + + isci_remote_device_not_ready(ihost, idev, + SCIC_REMOTE_DEVICE_NOT_READY_STOP_REQUESTED); + } +} + +static void scic_sds_remote_device_stopping_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_device *sci_dev = (struct scic_sds_remote_device *)object; + + SET_STATE_HANDLER( + sci_dev, + scic_sds_remote_device_state_handler_table, + SCI_BASE_REMOTE_DEVICE_STATE_STOPPING + ); +} + +static void scic_sds_remote_device_failed_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_device *sci_dev = (struct scic_sds_remote_device *)object; + + SET_STATE_HANDLER( + sci_dev, + scic_sds_remote_device_state_handler_table, + SCI_BASE_REMOTE_DEVICE_STATE_FAILED + ); +} + +static void scic_sds_remote_device_resetting_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_device *sci_dev = (struct scic_sds_remote_device *)object; + + SET_STATE_HANDLER( + sci_dev, + scic_sds_remote_device_state_handler_table, + SCI_BASE_REMOTE_DEVICE_STATE_RESETTING + ); + + scic_sds_remote_node_context_suspend( + &sci_dev->rnc, SCI_SOFTWARE_SUSPENSION, NULL, NULL); +} + +static void scic_sds_remote_device_resetting_state_exit( + struct sci_base_object *object) +{ + struct scic_sds_remote_device *sci_dev = (struct scic_sds_remote_device *)object; + + scic_sds_remote_node_context_resume(&sci_dev->rnc, NULL, NULL); +} + +static void scic_sds_remote_device_final_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_device *sci_dev = (struct scic_sds_remote_device *)object; + + SET_STATE_HANDLER( + sci_dev, + scic_sds_remote_device_state_handler_table, + SCI_BASE_REMOTE_DEVICE_STATE_FINAL + ); +} + + +static const struct sci_base_state scic_sds_remote_device_state_table[] = { + [SCI_BASE_REMOTE_DEVICE_STATE_INITIAL] = { + .enter_state = scic_sds_remote_device_initial_state_enter, + }, + [SCI_BASE_REMOTE_DEVICE_STATE_STOPPED] = { + .enter_state = scic_sds_remote_device_stopped_state_enter, + }, + [SCI_BASE_REMOTE_DEVICE_STATE_STARTING] = { + .enter_state = scic_sds_remote_device_starting_state_enter, + }, + [SCI_BASE_REMOTE_DEVICE_STATE_READY] = { + .enter_state = scic_sds_remote_device_ready_state_enter, + .exit_state = scic_sds_remote_device_ready_state_exit + }, + [SCI_BASE_REMOTE_DEVICE_STATE_STOPPING] = { + .enter_state = scic_sds_remote_device_stopping_state_enter, + }, + [SCI_BASE_REMOTE_DEVICE_STATE_FAILED] = { + .enter_state = scic_sds_remote_device_failed_state_enter, + }, + [SCI_BASE_REMOTE_DEVICE_STATE_RESETTING] = { + .enter_state = scic_sds_remote_device_resetting_state_enter, + .exit_state = scic_sds_remote_device_resetting_state_exit + }, + [SCI_BASE_REMOTE_DEVICE_STATE_FINAL] = { + .enter_state = scic_sds_remote_device_final_state_enter, + }, +}; + +/** + * scic_remote_device_construct() - This method will perform the construction + * common to all remote device objects. + * @sci_port: SAS/SATA port through which this device is accessed. + * @sci_dev: remote device to construct + * + * It isn't necessary to call scic_remote_device_destruct() for device objects + * that have only called this method for construction. Once subsequent + * construction methods have been invoked (e.g. + * scic_remote_device_da_construct()), then destruction should occur. none + */ +static void scic_remote_device_construct(struct scic_sds_port *sci_port, + struct scic_sds_remote_device *sci_dev) +{ + sci_dev->owning_port = sci_port; + sci_dev->started_request_count = 0; + sci_dev->parent.private = NULL; + + sci_base_state_machine_construct( + &sci_dev->state_machine, + &sci_dev->parent, + scic_sds_remote_device_state_table, + SCI_BASE_REMOTE_DEVICE_STATE_INITIAL + ); + + sci_base_state_machine_start( + &sci_dev->state_machine + ); + + scic_sds_remote_node_context_construct(&sci_dev->rnc, + SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX); + + sci_object_set_association(&sci_dev->rnc, sci_dev); +} + +/** + * scic_remote_device_da_construct() - This method will construct a + * SCIC_REMOTE_DEVICE object for a direct attached (da) device. The + * information (e.g. IAF, Signature FIS, etc.) necessary to build the device + * is known to the SCI Core since it is contained in the scic_phy object. + * @remote_device: This parameter specifies the remote device to be destructed. + * + * The user must have previously called scic_remote_device_construct() Remote + * device objects are a limited resource. As such, they must be protected. + * Thus calls to construct and destruct are mutually exclusive and + * non-reentrant. Indicate if the remote device was successfully constructed. + * SCI_SUCCESS Returned if the device was successfully constructed. + * SCI_FAILURE_DEVICE_EXISTS Returned if the device has already been + * constructed. If it's an additional phy for the target, then call + * scic_remote_device_da_add_phy(). SCI_FAILURE_UNSUPPORTED_PROTOCOL Returned + * if the supplied parameters necessitate creation of a remote device for which + * the protocol is not supported by the underlying controller hardware. + * SCI_FAILURE_INSUFFICIENT_RESOURCES This value is returned if the core + * controller associated with the supplied parameters is unable to support + * additional remote devices. + */ +static enum sci_status scic_remote_device_da_construct(struct scic_sds_remote_device *sci_dev) +{ + enum sci_status status; + u16 remote_node_index; + struct sci_sas_identify_address_frame_protocols protocols; + + /* + * This information is request to determine how many remote node context + * entries will be needed to store the remote node. + */ + scic_sds_port_get_attached_protocols(sci_dev->owning_port, &protocols); + sci_dev->target_protocols.u.all = protocols.u.all; + sci_dev->is_direct_attached = true; +#if !defined(DISABLE_ATAPI) + sci_dev->is_atapi = scic_sds_remote_device_is_atapi(sci_dev); +#endif + + status = scic_sds_controller_allocate_remote_node_context( + sci_dev->owning_port->owning_controller, + sci_dev, + &remote_node_index); + + if (status == SCI_SUCCESS) { + sci_dev->rnc.remote_node_index = remote_node_index; + + scic_sds_port_get_attached_sas_address( + sci_dev->owning_port, &sci_dev->device_address); + + if (sci_dev->target_protocols.u.bits.attached_ssp_target) { + sci_dev->has_ready_substate_machine = false; + } else if (sci_dev->target_protocols.u.bits.attached_stp_target) { + sci_dev->has_ready_substate_machine = true; + + sci_base_state_machine_construct( + &sci_dev->ready_substate_machine, + &sci_dev->parent, + scic_sds_stp_remote_device_ready_substate_table, + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE); + } else if (sci_dev->target_protocols.u.bits.attached_smp_target) { + sci_dev->has_ready_substate_machine = true; + + /* add the SMP ready substate machine construction here */ + sci_base_state_machine_construct( + &sci_dev->ready_substate_machine, + &sci_dev->parent, + scic_sds_smp_remote_device_ready_substate_table, + SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE); + } + + sci_dev->connection_rate = scic_sds_port_get_max_allowed_speed( + sci_dev->owning_port); + + /* / @todo Should I assign the port width by reading all of the phys on the port? */ + sci_dev->device_port_width = 1; + } + + return status; +} + +static void scic_sds_remote_device_get_info_from_smp_discover_response( + struct scic_sds_remote_device *sci_dev, + struct smp_response_discover *discover_response) +{ + /* decode discover_response to set sas_address to sci_dev. */ + sci_dev->device_address.high = + discover_response->attached_sas_address.high; + + sci_dev->device_address.low = + discover_response->attached_sas_address.low; + + sci_dev->target_protocols.u.all = discover_response->protocols.u.all; +} + +/** + * scic_remote_device_ea_construct() - This method will construct an + * SCIC_REMOTE_DEVICE object for an expander attached (ea) device from an + * SMP Discover Response. + * @remote_device: This parameter specifies the remote device to be destructed. + * @discover_response: This parameter specifies the SMP Discovery Response to + * be used in device creation. + * + * The user must have previously called scic_remote_device_construct() Remote + * device objects are a limited resource. As such, they must be protected. + * Thus calls to construct and destruct are mutually exclusive and + * non-reentrant. Indicate if the remote device was successfully constructed. + * SCI_SUCCESS Returned if the device was successfully constructed. + * SCI_FAILURE_DEVICE_EXISTS Returned if the device has already been + * constructed. If it's an additional phy for the target, then call + * scic_ea_remote_device_add_phy(). SCI_FAILURE_UNSUPPORTED_PROTOCOL Returned + * if the supplied parameters necessitate creation of a remote device for which + * the protocol is not supported by the underlying controller hardware. + * SCI_FAILURE_INSUFFICIENT_RESOURCES This value is returned if the core + * controller associated with the supplied parameters is unable to support + * additional remote devices. + */ +static enum sci_status scic_remote_device_ea_construct(struct scic_sds_remote_device *sci_dev, + struct smp_response_discover *discover_response) +{ + enum sci_status status; + struct scic_sds_controller *scic; + + scic = scic_sds_port_get_controller(sci_dev->owning_port); + + scic_sds_remote_device_get_info_from_smp_discover_response( + sci_dev, discover_response); + + status = scic_sds_controller_allocate_remote_node_context( + scic, sci_dev, &sci_dev->rnc.remote_node_index); + + if (status == SCI_SUCCESS) { + if (sci_dev->target_protocols.u.bits.attached_ssp_target) { + sci_dev->has_ready_substate_machine = false; + } else if (sci_dev->target_protocols.u.bits.attached_smp_target) { + sci_dev->has_ready_substate_machine = true; + + /* add the SMP ready substate machine construction here */ + sci_base_state_machine_construct( + &sci_dev->ready_substate_machine, + &sci_dev->parent, + scic_sds_smp_remote_device_ready_substate_table, + SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE); + } else if (sci_dev->target_protocols.u.bits.attached_stp_target) { + sci_dev->has_ready_substate_machine = true; + + sci_base_state_machine_construct( + &sci_dev->ready_substate_machine, + &sci_dev->parent, + scic_sds_stp_remote_device_ready_substate_table, + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE); + } + + /* + * For SAS-2 the physical link rate is actually a logical link + * rate that incorporates multiplexing. The SCU doesn't + * incorporate multiplexing and for the purposes of the + * connection the logical link rate is that same as the + * physical. Furthermore, the SAS-2 and SAS-1.1 fields overlay + * one another, so this code works for both situations. */ + sci_dev->connection_rate = min_t(u16, + scic_sds_port_get_max_allowed_speed(sci_dev->owning_port), + discover_response->u2.sas1_1.negotiated_physical_link_rate + ); + + /* / @todo Should I assign the port width by reading all of the phys on the port? */ + sci_dev->device_port_width = 1; + } + + return status; +} + +/** + * scic_remote_device_start() - This method will start the supplied remote + * device. This method enables normal IO requests to flow through to the + * remote device. + * @remote_device: This parameter specifies the device to be started. + * @timeout: This parameter specifies the number of milliseconds in which the + * start operation should complete. + * + * An indication of whether the device was successfully started. SCI_SUCCESS + * This value is returned if the device was successfully started. + * SCI_FAILURE_INVALID_PHY This value is returned if the user attempts to start + * the device when there have been no phys added to it. + */ +static enum sci_status scic_remote_device_start(struct scic_sds_remote_device *sci_dev, + u32 timeout) +{ + return sci_dev->state_handlers->start_handler(sci_dev); +} /** * isci_remote_device_construct() - This function calls the scic remote device @@ -306,51 +1869,6 @@ void isci_remote_device_not_ready(struct isci_host *ihost, isci_remote_device_change_state(idev, isci_ready); } -/** - * isci_remote_device_stop_complete() - This function is called by the scic - * when the remote device stop has completed. We mark the isci device as not - * ready and remove the isci remote device. - * @isci_host: This parameter specifies the isci host object. - * @isci_device: This parameter specifies the remote device. - * @status: This parameter specifies status of the completion. - * - */ -void isci_remote_device_stop_complete( - struct isci_host *isci_host, - struct isci_remote_device *isci_device, - enum sci_status status) -{ - dev_dbg(&isci_host->pdev->dev, - "%s: complete isci_device = %p, status = 0x%x\n", - __func__, - isci_device, - status); - - isci_remote_device_change_state(isci_device, isci_stopped); - - /* after stop, we can tear down resources. */ - isci_remote_device_deconstruct(isci_host, isci_device); - -} - -/** - * isci_remote_device_start_complete() - This function is called by the scic - * when the remote device start has completed - * @isci_host: This parameter specifies the isci host object. - * @isci_device: This parameter specifies the remote device. - * @status: This parameter specifies status of the completion. - * - */ -void isci_remote_device_start_complete( - struct isci_host *isci_host, - struct isci_remote_device *isci_device, - enum sci_status status) -{ - - -} - - /** * isci_remote_device_stop() - This function is called internally to stop the * remote device. @@ -572,21 +2090,3 @@ void isci_device_clear_reset_pending(struct isci_host *ihost, struct isci_remote } spin_unlock_irqrestore(&ihost->scic_lock, flags); } - -/** - * isci_remote_device_change_state() - This function gets the status of the - * remote_device object. - * @isci_device: This parameter points to the isci_remote_device object - * - * status of the object as a isci_status enum. - */ -void isci_remote_device_change_state( - struct isci_remote_device *isci_device, - enum isci_status status) -{ - unsigned long flags; - - spin_lock_irqsave(&isci_device->state_lock, flags); - isci_device->status = status; - spin_unlock_irqrestore(&isci_device->state_lock, flags); -} diff --git a/drivers/scsi/isci/remote_device.h b/drivers/scsi/isci/remote_device.h index aeda39568a1..9d8fcbf72de 100644 --- a/drivers/scsi/isci/remote_device.h +++ b/drivers/scsi/isci/remote_device.h @@ -53,11 +53,127 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -#if !defined(_ISCI_REMOTE_DEVICE_H_) +#ifndef _ISCI_REMOTE_DEVICE_H_ #define _ISCI_REMOTE_DEVICE_H_ -#include "scic_sds_remote_device.h" +#include +#include "sci_status.h" +#include "intel_sas.h" +#include "scu_remote_node_context.h" +#include "remote_node_context.h" +#include "port.h" -struct isci_host; +enum scic_remote_device_not_ready_reason_code { + SCIC_REMOTE_DEVICE_NOT_READY_START_REQUESTED, + SCIC_REMOTE_DEVICE_NOT_READY_STOP_REQUESTED, + SCIC_REMOTE_DEVICE_NOT_READY_SATA_REQUEST_STARTED, + SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED, + SCIC_REMOTE_DEVICE_NOT_READY_SMP_REQUEST_STARTED, + + SCIC_REMOTE_DEVICE_NOT_READY_REASON_CODE_MAX + +}; + +struct scic_sds_remote_device { + /** + * The field specifies that the parent object for the base remote + * device is the base object itself. + */ + struct sci_base_object parent; + + /** + * This field contains the information for the base remote device state + * machine. + */ + struct sci_base_state_machine state_machine; + + /** + * This field is the programmed device port width. This value is + * written to the RCN data structure to tell the SCU how many open + * connections this device can have. + */ + u32 device_port_width; + + /** + * This field is the programmed connection rate for this remote device. It is + * used to program the TC with the maximum allowed connection rate. + */ + enum sas_linkrate connection_rate; + + /** + * This field contains the allowed target protocols for this remote device. + */ + struct smp_discover_response_protocols target_protocols; + + /** + * This field contains the device SAS address. + */ + struct sci_sas_address device_address; + + /** + * This filed is assinged the value of true if the device is directly + * attached to the port. + */ + bool is_direct_attached; + +#if !defined(DISABLE_ATAPI) + /** + * This filed is assinged the value of true if the device is an ATAPI + * device. + */ + bool is_atapi; +#endif + + /** + * This filed contains a pointer back to the port to which this device + * is assigned. + */ + struct scic_sds_port *owning_port; + + /** + * This field contains the SCU silicon remote node context specific + * information. + */ + struct scic_sds_remote_node_context rnc; + + /** + * This field contains the stated request count for the remote device. The + * device can not reach the SCI_BASE_REMOTE_DEVICE_STATE_STOPPED until all + * requests are complete and the rnc_posted value is false. + */ + u32 started_request_count; + + /** + * This field contains a pointer to the working request object. It is only + * used only for SATA requests since the unsolicited frames we get from the + * hardware have no Tag value to look up the io request object. + */ + struct scic_sds_request *working_request; + + /** + * This field contains the reason for the remote device going not_ready. It is + * assigned in the state handlers and used in the state transition. + */ + u32 not_ready_reason; + + /** + * This field is true if this remote device has an initialzied ready substate + * machine. SSP devices do not have a ready substate machine and STP devices + * have a ready substate machine. + */ + bool has_ready_substate_machine; + + /** + * This field contains the state machine for the ready substate machine for + * this struct scic_sds_remote_device object. + */ + struct sci_base_state_machine ready_substate_machine; + + /** + * This field maintains the set of state handlers for the remote device + * object. These are changed each time the remote device enters a new state. + */ + const struct scic_sds_remote_device_state_handler *state_handlers; +}; struct isci_remote_device { enum isci_status status; @@ -75,12 +191,6 @@ struct isci_remote_device { #define ISCI_REMOTE_DEVICE_START_TIMEOUT 5000 -void isci_remote_device_start_complete(struct isci_host *ihost, - struct isci_remote_device *idev, - enum sci_status); -void isci_remote_device_stop_complete(struct isci_host *ihost, - struct isci_remote_device *idev, - enum sci_status); enum sci_status isci_remote_device_stop(struct isci_host *ihost, struct isci_remote_device *idev); void isci_remote_device_nuke_requests(struct isci_host *ihost, @@ -97,5 +207,619 @@ void isci_device_clear_reset_pending(struct isci_host *ihost, struct isci_remote_device *idev); void isci_remote_device_change_state(struct isci_remote_device *idev, enum isci_status status); +/** + * scic_remote_device_stop() - This method will stop both transmission and + * reception of link activity for the supplied remote device. This method + * disables normal IO requests from flowing through to the remote device. + * @remote_device: This parameter specifies the device to be stopped. + * @timeout: This parameter specifies the number of milliseconds in which the + * stop operation should complete. + * + * An indication of whether the device was successfully stopped. SCI_SUCCESS + * This value is returned if the transmission and reception for the device was + * successfully stopped. + */ +enum sci_status scic_remote_device_stop( + struct scic_sds_remote_device *remote_device, + u32 timeout); + +/** + * scic_remote_device_reset() - This method will reset the device making it + * ready for operation. This method must be called anytime the device is + * reset either through a SMP phy control or a port hard reset request. + * @remote_device: This parameter specifies the device to be reset. + * + * This method does not actually cause the device hardware to be reset. This + * method resets the software object so that it will be operational after a + * device hardware reset completes. An indication of whether the device reset + * was accepted. SCI_SUCCESS This value is returned if the device reset is + * started. + */ +enum sci_status scic_remote_device_reset( + struct scic_sds_remote_device *remote_device); + +/** + * scic_remote_device_reset_complete() - This method informs the device object + * that the reset operation is complete and the device can resume operation + * again. + * @remote_device: This parameter specifies the device which is to be informed + * of the reset complete operation. + * + * An indication that the device is resuming operation. SCI_SUCCESS the device + * is resuming operation. + */ +enum sci_status scic_remote_device_reset_complete( + struct scic_sds_remote_device *remote_device); + + + +/** + * scic_remote_device_get_connection_rate() - This method simply returns the + * link rate at which communications to the remote device occur. + * @remote_device: This parameter specifies the device for which to get the + * connection rate. + * + * Return the link rate at which we transfer for the supplied remote device. + */ +enum sas_linkrate scic_remote_device_get_connection_rate( + struct scic_sds_remote_device *remote_device); + +/** + * scic_remote_device_get_protocols() - This method will indicate which + * protocols are supported by this remote device. + * @remote_device: This parameter specifies the device for which to return the + * protocol. + * @protocols: This parameter specifies the output values, from the remote + * device object, which indicate the protocols supported by the supplied + * remote_device. + * + * The type of protocols supported by this device. The values are returned as + * part of a bit mask in order to allow for multi-protocol support. + */ +void scic_remote_device_get_protocols( + struct scic_sds_remote_device *remote_device, + struct smp_discover_response_protocols *protocols); + + +#if !defined(DISABLE_ATAPI) +/** + * scic_remote_device_is_atapi() - + * @this_device: The device whose type is to be decided. + * + * This method first decide whether a device is a stp target, then decode the + * signature fis of a DA STP device to tell whether it is a standard end disk + * or an ATAPI device. bool Indicate a device is ATAPI device or not. + */ +bool scic_remote_device_is_atapi( + struct scic_sds_remote_device *device_handle); +#else /* !defined(DISABLE_ATAPI) */ +#define scic_remote_device_is_atapi(device_handle) false +#endif /* !defined(DISABLE_ATAPI) */ + + + +/** + * enum scic_sds_remote_device_states - This enumeration depicts all the states + * for the common remote device state machine. + * + * + */ +enum scic_sds_remote_device_states { + /** + * Simply the initial state for the base remote device state machine. + */ + SCI_BASE_REMOTE_DEVICE_STATE_INITIAL, + + /** + * This state indicates that the remote device has successfully been + * stopped. In this state no new IO operations are permitted. + * This state is entered from the INITIAL state. + * This state is entered from the STOPPING state. + */ + SCI_BASE_REMOTE_DEVICE_STATE_STOPPED, + + /** + * This state indicates the the remote device is in the process of + * becoming ready (i.e. starting). In this state no new IO operations + * are permitted. + * This state is entered from the STOPPED state. + */ + SCI_BASE_REMOTE_DEVICE_STATE_STARTING, + + /** + * This state indicates the remote device is now ready. Thus, the user + * is able to perform IO operations on the remote device. + * This state is entered from the STARTING state. + */ + SCI_BASE_REMOTE_DEVICE_STATE_READY, + + /** + * This state indicates that the remote device is in the process of + * stopping. In this state no new IO operations are permitted, but + * existing IO operations are allowed to complete. + * This state is entered from the READY state. + * This state is entered from the FAILED state. + */ + SCI_BASE_REMOTE_DEVICE_STATE_STOPPING, + + /** + * This state indicates that the remote device has failed. + * In this state no new IO operations are permitted. + * This state is entered from the INITIALIZING state. + * This state is entered from the READY state. + */ + SCI_BASE_REMOTE_DEVICE_STATE_FAILED, + + /** + * This state indicates the device is being reset. + * In this state no new IO operations are permitted. + * This state is entered from the READY state. + */ + SCI_BASE_REMOTE_DEVICE_STATE_RESETTING, + + /** + * Simply the final state for the base remote device state machine. + */ + SCI_BASE_REMOTE_DEVICE_STATE_FINAL, +}; + +/** + * enum scic_sds_ssp_remote_device_ready_substates - + * + * This is the enumeration of the ready substates for the + * struct scic_sds_remote_device. + */ +enum scic_sds_ssp_remote_device_ready_substates { + /** + * This is the initial state for the remote device ready substate. + */ + SCIC_SDS_SSP_REMOTE_DEVICE_READY_SUBSTATE_INITIAL, + + /** + * This is the ready operational substate for the remote device. + * This is the normal operational state for a remote device. + */ + SCIC_SDS_SSP_REMOTE_DEVICE_READY_SUBSTATE_OPERATIONAL, + + /** + * This is the suspended state for the remote device. This is the state + * that the device is placed in when a RNC suspend is received by + * the SCU hardware. + */ + SCIC_SDS_SSP_REMOTE_DEVICE_READY_SUBSTATE_SUSPENDED, + + /** + * This is the final state that the device is placed in before a change + * to the base state machine. + */ + SCIC_SDS_SSP_REMOTE_DEVICE_READY_SUBSTATE_FINAL, + + SCIC_SDS_SSP_REMOTE_DEVICE_READY_MAX_SUBSTATES +}; + +/** + * enum scic_sds_stp_remote_device_ready_substates - + * + * This is the enumeration for the struct scic_sds_remote_device ready substates + * for the STP remote device. + */ +enum scic_sds_stp_remote_device_ready_substates { + /** + * This is the idle substate for the stp remote device. When there are no + * active IO for the device it is is in this state. + */ + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE, + + /** + * This is the command state for for the STP remote device. This state is + * entered when the device is processing a non-NCQ command. The device object + * will fail any new start IO requests until this command is complete. + */ + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD, + + /** + * This is the NCQ state for the STP remote device. This state is entered + * when the device is processing an NCQ reuqest. It will remain in this state + * so long as there is one or more NCQ requests being processed. + */ + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ, + + /** + * This is the NCQ error state for the STP remote device. This state is + * entered when an SDB error FIS is received by the device object while in the + * NCQ state. The device object will only accept a READ LOG command while in + * this state. + */ + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR, + +#if !defined(DISABLE_ATAPI) + /** + * This is the ATAPI error state for the STP ATAPI remote device. This state is + * entered when ATAPI device sends error status FIS without data while the device + * object is in CMD state. A suspension event is expected in this state. The device + * object will resume right away. + */ + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_ATAPI_ERROR, +#endif + + /** + * This is the READY substate indicates the device is waiting for the RESET task + * coming to be recovered from certain hardware specific error. + */ + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET, +}; + +/** + * enum scic_sds_smp_remote_device_ready_substates - + * + * This is the enumeration of the ready substates for the SMP REMOTE DEVICE. + */ +enum scic_sds_smp_remote_device_ready_substates { + /** + * This is the ready operational substate for the remote device. This is the + * normal operational state for a remote device. + */ + SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE, + + /** + * This is the suspended state for the remote device. This is the state that + * the device is placed in when a RNC suspend is received by the SCU hardware. + */ + SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD, +}; + +static inline struct scic_sds_remote_device *rnc_to_dev(struct scic_sds_remote_node_context *rnc) +{ + struct scic_sds_remote_device *sci_dev; + + sci_dev = container_of(rnc, typeof(*sci_dev), rnc); + + return sci_dev; +} + +typedef enum sci_status (*scic_sds_remote_device_request_handler_t)( + struct scic_sds_remote_device *device, + struct scic_sds_request *request); + +typedef enum sci_status (*scic_sds_remote_device_high_priority_request_complete_handler_t)( + struct scic_sds_remote_device *device, + struct scic_sds_request *request, + void *, + enum sci_io_status); + +typedef enum sci_status (*scic_sds_remote_device_handler_t)( + struct scic_sds_remote_device *sci_dev); + +typedef enum sci_status (*scic_sds_remote_device_suspend_handler_t)( + struct scic_sds_remote_device *sci_dev, + u32 suspend_type); + +typedef enum sci_status (*scic_sds_remote_device_resume_handler_t)( + struct scic_sds_remote_device *sci_dev); + +typedef enum sci_status (*scic_sds_remote_device_frame_handler_t)( + struct scic_sds_remote_device *sci_dev, + u32 frame_index); + +typedef enum sci_status (*scic_sds_remote_device_event_handler_t)( + struct scic_sds_remote_device *sci_dev, + u32 event_code); + +typedef void (*scic_sds_remote_device_ready_not_ready_handler_t)( + struct scic_sds_remote_device *sci_dev); + +/** + * struct scic_sds_remote_device_state_handler - This structure conains the + * state handlers that are needed to process requests for the SCU remote + * device objects. + * + * + */ +struct scic_sds_remote_device_state_handler { + /** + * The start_handler specifies the method invoked when a user + * attempts to start a remote device. + */ + scic_sds_remote_device_handler_t start_handler; + + /** + * The stop_handler specifies the method invoked when a user attempts to + * stop a remote device. + */ + scic_sds_remote_device_handler_t stop_handler; + + /** + * The fail_handler specifies the method invoked when a remote device + * failure has occurred. A failure may be due to an inability to + * initialize/configure the device. + */ + scic_sds_remote_device_handler_t fail_handler; + + /** + * The destruct_handler specifies the method invoked when attempting to + * destruct a remote device. + */ + scic_sds_remote_device_handler_t destruct_handler; + + /** + * The reset handler specifies the method invloked when requesting to + * reset a remote device. + */ + scic_sds_remote_device_handler_t reset_handler; + + /** + * The reset complete handler specifies the method invloked when + * reporting that a reset has completed to the remote device. + */ + scic_sds_remote_device_handler_t reset_complete_handler; + + /** + * The start_io_handler specifies the method invoked when a user + * attempts to start an IO request for a remote device. + */ + scic_sds_remote_device_request_handler_t start_io_handler; + + /** + * The complete_io_handler specifies the method invoked when a user + * attempts to complete an IO request for a remote device. + */ + scic_sds_remote_device_request_handler_t complete_io_handler; + + /** + * The continue_io_handler specifies the method invoked when a user + * attempts to continue an IO request for a remote device. + */ + scic_sds_remote_device_request_handler_t continue_io_handler; + + /** + * The start_task_handler specifies the method invoked when a user + * attempts to start a task management request for a remote device. + */ + scic_sds_remote_device_request_handler_t start_task_handler; + + /** + * The complete_task_handler specifies the method invoked when a user + * attempts to complete a task management request for a remote device. + */ + scic_sds_remote_device_request_handler_t complete_task_handler; + + + scic_sds_remote_device_suspend_handler_t suspend_handler; + scic_sds_remote_device_resume_handler_t resume_handler; + scic_sds_remote_device_event_handler_t event_handler; + scic_sds_remote_device_frame_handler_t frame_handler; +}; + +extern const struct sci_base_state scic_sds_ssp_remote_device_ready_substate_table[]; +extern const struct sci_base_state scic_sds_stp_remote_device_ready_substate_table[]; +extern const struct sci_base_state scic_sds_smp_remote_device_ready_substate_table[]; + +/** + * scic_sds_remote_device_increment_request_count() - + * + * This macro incrments the request count for this device + */ +#define scic_sds_remote_device_increment_request_count(sci_dev) \ + ((sci_dev)->started_request_count++) + +/** + * scic_sds_remote_device_decrement_request_count() - + * + * This macro decrements the request count for this device. This count will + * never decrment past 0. + */ +#define scic_sds_remote_device_decrement_request_count(sci_dev) \ + ((sci_dev)->started_request_count > 0 ? \ + (sci_dev)->started_request_count-- : 0) + +/** + * scic_sds_remote_device_get_request_count() - + * + * This is a helper macro to return the current device request count. + */ +#define scic_sds_remote_device_get_request_count(sci_dev) \ + ((sci_dev)->started_request_count) + +/** + * scic_sds_remote_device_get_port() - + * + * This macro returns the owning port of this remote device obejct. + */ +#define scic_sds_remote_device_get_port(sci_dev) \ + ((sci_dev)->owning_port) + +/** + * scic_sds_remote_device_get_controller() - + * + * This macro returns the controller object that contains this device object + */ +#define scic_sds_remote_device_get_controller(sci_dev) \ + scic_sds_port_get_controller(scic_sds_remote_device_get_port(sci_dev)) + +/** + * scic_sds_remote_device_set_state_handlers() - + * + * This macro sets the remote device state handlers pointer and is set on entry + * to each device state. + */ +#define scic_sds_remote_device_set_state_handlers(sci_dev, handlers) \ + ((sci_dev)->state_handlers = (handlers)) + +/** + * scic_sds_remote_device_get_port() - + * + * This macro returns the owning port of this device + */ +#define scic_sds_remote_device_get_port(sci_dev) \ + ((sci_dev)->owning_port) + +/** + * scic_sds_remote_device_get_sequence() - + * + * This macro returns the remote device sequence value + */ +#define scic_sds_remote_device_get_sequence(sci_dev) \ + (\ + scic_sds_remote_device_get_controller(sci_dev)-> \ + remote_device_sequence[(sci_dev)->rnc.remote_node_index] \ + ) + +/** + * scic_sds_remote_device_get_controller_peg() - + * + * This macro returns the controllers protocol engine group + */ +#define scic_sds_remote_device_get_controller_peg(sci_dev) \ + (\ + scic_sds_controller_get_protocol_engine_group(\ + scic_sds_port_get_controller(\ + scic_sds_remote_device_get_port(sci_dev) \ + ) \ + ) \ + ) + +/** + * scic_sds_remote_device_get_port_index() - + * + * This macro returns the port index for the devices owning port + */ +#define scic_sds_remote_device_get_port_index(sci_dev) \ + (scic_sds_port_get_index(scic_sds_remote_device_get_port(sci_dev))) + +/** + * scic_sds_remote_device_get_index() - + * + * This macro returns the remote node index for this device object + */ +#define scic_sds_remote_device_get_index(sci_dev) \ + ((sci_dev)->rnc.remote_node_index) + +/** + * scic_sds_remote_device_build_command_context() - + * + * This macro builds a remote device context for the SCU post request operation + */ +#define scic_sds_remote_device_build_command_context(device, command) \ + ((command) \ + | (scic_sds_remote_device_get_controller_peg((device)) << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) \ + | (scic_sds_remote_device_get_port_index((device)) << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) \ + | (scic_sds_remote_device_get_index((device))) \ + ) + +/** + * scic_sds_remote_device_set_working_request() - + * + * This macro makes the working request assingment for the remote device + * object. To clear the working request use this macro with a NULL request + * object. + */ +#define scic_sds_remote_device_set_working_request(device, request) \ + ((device)->working_request = (request)) + +enum sci_status scic_sds_remote_device_frame_handler( + struct scic_sds_remote_device *sci_dev, + u32 frame_index); + +enum sci_status scic_sds_remote_device_event_handler( + struct scic_sds_remote_device *sci_dev, + u32 event_code); + +enum sci_status scic_sds_remote_device_start_io( + struct scic_sds_controller *controller, + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *io_request); + +enum sci_status scic_sds_remote_device_complete_io( + struct scic_sds_controller *controller, + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *io_request); + +enum sci_status scic_sds_remote_device_resume( + struct scic_sds_remote_device *sci_dev); + +enum sci_status scic_sds_remote_device_suspend( + struct scic_sds_remote_device *sci_dev, + u32 suspend_type); + +enum sci_status scic_sds_remote_device_start_task( + struct scic_sds_controller *controller, + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *io_request); + +void scic_sds_remote_device_post_request( + struct scic_sds_remote_device *sci_dev, + u32 request); + +#if !defined(DISABLE_ATAPI) +bool scic_sds_remote_device_is_atapi( + struct scic_sds_remote_device *sci_dev); +#else /* !defined(DISABLE_ATAPI) */ +#define scic_sds_remote_device_is_atapi(sci_dev) false +#endif /* !defined(DISABLE_ATAPI) */ + +void scic_sds_remote_device_start_request( + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *sci_req, + enum sci_status status); + +void scic_sds_remote_device_continue_request(void *sci_dev); + +enum sci_status scic_sds_remote_device_default_start_handler( + struct scic_sds_remote_device *sci_dev); + +enum sci_status scic_sds_remote_device_default_fail_handler( + struct scic_sds_remote_device *sci_dev); + +enum sci_status scic_sds_remote_device_default_destruct_handler( + struct scic_sds_remote_device *sci_dev); + +enum sci_status scic_sds_remote_device_default_reset_handler( + struct scic_sds_remote_device *device); + +enum sci_status scic_sds_remote_device_default_reset_complete_handler( + struct scic_sds_remote_device *device); + +enum sci_status scic_sds_remote_device_default_start_request_handler( + struct scic_sds_remote_device *device, + struct scic_sds_request *request); + +enum sci_status scic_sds_remote_device_default_complete_request_handler( + struct scic_sds_remote_device *device, + struct scic_sds_request *request); + +enum sci_status scic_sds_remote_device_default_continue_request_handler( + struct scic_sds_remote_device *device, + struct scic_sds_request *request); + +enum sci_status scic_sds_remote_device_default_suspend_handler( + struct scic_sds_remote_device *sci_dev, + u32 suspend_type); + +enum sci_status scic_sds_remote_device_default_resume_handler( + struct scic_sds_remote_device *sci_dev); + + +enum sci_status scic_sds_remote_device_default_frame_handler( + struct scic_sds_remote_device *sci_dev, + u32 frame_index); + +enum sci_status scic_sds_remote_device_ready_state_stop_handler( + struct scic_sds_remote_device *device); + +enum sci_status scic_sds_remote_device_ready_state_reset_handler( + struct scic_sds_remote_device *device); + +enum sci_status scic_sds_remote_device_general_frame_handler( + struct scic_sds_remote_device *sci_dev, + u32 frame_index); + +enum sci_status scic_sds_remote_device_general_event_handler( + struct scic_sds_remote_device *sci_dev, + u32 event_code); + +enum sci_status scic_sds_ssp_remote_device_ready_suspended_substate_resume_handler( + struct scic_sds_remote_device *sci_dev); + + #endif /* !defined(_ISCI_REMOTE_DEVICE_H_) */ diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c new file mode 100644 index 00000000000..bdf0b5101cf --- /dev/null +++ b/drivers/scsi/isci/remote_node_context.c @@ -0,0 +1,1226 @@ +/* + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * BSD LICENSE + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "sci_base_state_machine.h" +#include "scic_sds_controller.h" +#include "scic_sds_port.h" +#include "remote_device.h" +#include "remote_node_context.h" +#include "sci_environment.h" +#include "sci_util.h" +#include "scu_event_codes.h" +#include "scu_task_context.h" + + +/** + * + * @sci_rnc: The RNC for which the is posted request is being made. + * + * This method will return true if the RNC is not in the initial state. In all + * other states the RNC is considered active and this will return true. The + * destroy request of the state machine drives the RNC back to the initial + * state. If the state machine changes then this routine will also have to be + * changed. bool true if the state machine is not in the initial state false if + * the state machine is in the initial state + */ + +/** + * + * @sci_rnc: The state of the remote node context object to check. + * + * This method will return true if the remote node context is in a READY state + * otherwise it will return false bool true if the remote node context is in + * the ready state. false if the remote node context is not in the ready state. + */ +bool scic_sds_remote_node_context_is_ready( + struct scic_sds_remote_node_context *sci_rnc) +{ + u32 current_state = sci_base_state_machine_get_state(&sci_rnc->state_machine); + + if (current_state == SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE) { + return true; + } + + return false; +} + +/** + * + * @sci_dev: The remote device to use to construct the RNC buffer. + * @rnc: The buffer into which the remote device data will be copied. + * + * This method will construct the RNC buffer for this remote device object. none + */ +static void scic_sds_remote_node_context_construct_buffer( + struct scic_sds_remote_node_context *sci_rnc) +{ + union scu_remote_node_context *rnc; + struct scic_sds_remote_device *sci_dev = rnc_to_dev(sci_rnc); + struct scic_sds_controller *scic; + + scic = scic_sds_remote_device_get_controller(sci_dev); + + rnc = scic_sds_controller_get_remote_node_context_buffer( + scic, sci_rnc->remote_node_index); + + memset(rnc, 0, sizeof(union scu_remote_node_context) + * scic_sds_remote_device_node_count(sci_dev)); + + rnc->ssp.remote_node_index = sci_rnc->remote_node_index; + rnc->ssp.remote_node_port_width = sci_dev->device_port_width; + rnc->ssp.logical_port_index = + scic_sds_remote_device_get_port_index(sci_dev); + + rnc->ssp.remote_sas_address_hi = SCIC_SWAP_DWORD(sci_dev->device_address.high); + rnc->ssp.remote_sas_address_lo = SCIC_SWAP_DWORD(sci_dev->device_address.low); + + rnc->ssp.nexus_loss_timer_enable = true; + rnc->ssp.check_bit = false; + rnc->ssp.is_valid = false; + rnc->ssp.is_remote_node_context = true; + rnc->ssp.function_number = 0; + + rnc->ssp.arbitration_wait_time = 0; + + + if ( + sci_dev->target_protocols.u.bits.attached_sata_device + || sci_dev->target_protocols.u.bits.attached_stp_target + ) { + rnc->ssp.connection_occupancy_timeout = + scic->user_parameters.sds1.stp_max_occupancy_timeout; + rnc->ssp.connection_inactivity_timeout = + scic->user_parameters.sds1.stp_inactivity_timeout; + } else { + rnc->ssp.connection_occupancy_timeout = + scic->user_parameters.sds1.ssp_max_occupancy_timeout; + rnc->ssp.connection_inactivity_timeout = + scic->user_parameters.sds1.ssp_inactivity_timeout; + } + + rnc->ssp.initial_arbitration_wait_time = 0; + + /* Open Address Frame Parameters */ + rnc->ssp.oaf_connection_rate = sci_dev->connection_rate; + rnc->ssp.oaf_features = 0; + rnc->ssp.oaf_source_zone_group = 0; + rnc->ssp.oaf_more_compatibility_features = 0; +} + +/** + * + * @sci_rnc: + * @callback: + * @callback_parameter: + * + * This method will setup the remote node context object so it will transition + * to its ready state. If the remote node context is already setup to + * transition to its final state then this function does nothing. none + */ +static void scic_sds_remote_node_context_setup_to_resume( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + if (sci_rnc->destination_state != SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_FINAL) { + sci_rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY; + sci_rnc->user_callback = callback; + sci_rnc->user_cookie = callback_parameter; + } +} + +/** + * + * @sci_rnc: + * @callback: + * @callback_parameter: + * + * This method will setup the remote node context object so it will transistion + * to its final state. none + */ +static void scic_sds_remote_node_context_setup_to_destory( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + sci_rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_FINAL; + sci_rnc->user_callback = callback; + sci_rnc->user_cookie = callback_parameter; +} + +/** + * + * @sci_rnc: + * @callback: + * + * This method will continue to resume a remote node context. This is used in + * the states where a resume is requested while a resume is in progress. + */ +static enum sci_status scic_sds_remote_node_context_continue_to_resume_handler( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + if (sci_rnc->destination_state == SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY) { + sci_rnc->user_callback = callback; + sci_rnc->user_cookie = callback_parameter; + + return SCI_SUCCESS; + } + + return SCI_FAILURE_INVALID_STATE; +} + +/* --------------------------------------------------------------------------- */ + +static enum sci_status scic_sds_remote_node_context_default_destruct_handler( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p requested to stop while " + "in unexpected state %d\n", + __func__, + sci_rnc, + sci_base_state_machine_get_state(&sci_rnc->state_machine)); + + /* + * We have decided that the destruct request on the remote node context can not fail + * since it is either in the initial/destroyed state or is can be destroyed. */ + return SCI_SUCCESS; +} + +static enum sci_status scic_sds_remote_node_context_default_suspend_handler( + struct scic_sds_remote_node_context *sci_rnc, + u32 suspend_type, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p requested to suspend " + "while in wrong state %d\n", + __func__, + sci_rnc, + sci_base_state_machine_get_state(&sci_rnc->state_machine)); + + return SCI_FAILURE_INVALID_STATE; +} + +static enum sci_status scic_sds_remote_node_context_default_resume_handler( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p requested to resume " + "while in wrong state %d\n", + __func__, + sci_rnc, + sci_base_state_machine_get_state(&sci_rnc->state_machine)); + + return SCI_FAILURE_INVALID_STATE; +} + +static enum sci_status scic_sds_remote_node_context_default_start_io_handler( + struct scic_sds_remote_node_context *sci_rnc, + struct scic_sds_request *sci_req) +{ + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p requested to start io " + "0x%p while in wrong state %d\n", + __func__, + sci_rnc, + sci_req, + sci_base_state_machine_get_state(&sci_rnc->state_machine)); + + return SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED; +} + +static enum sci_status scic_sds_remote_node_context_default_start_task_handler( + struct scic_sds_remote_node_context *sci_rnc, + struct scic_sds_request *sci_req) +{ + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p requested to start " + "task 0x%p while in wrong state %d\n", + __func__, + sci_rnc, + sci_req, + sci_base_state_machine_get_state(&sci_rnc->state_machine)); + + return SCI_FAILURE; +} + +static enum sci_status scic_sds_remote_node_context_default_event_handler( + struct scic_sds_remote_node_context *sci_rnc, + u32 event_code) +{ + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p requested to process " + "event 0x%x while in wrong state %d\n", + __func__, + sci_rnc, + event_code, + sci_base_state_machine_get_state(&sci_rnc->state_machine)); + + return SCI_FAILURE_INVALID_STATE; +} + +/** + * + * @sci_rnc: The rnc for which the task request is targeted. + * @sci_req: The request which is going to be started. + * + * This method determines if the task request can be started by the SCU + * hardware. When the RNC is in the ready state any task can be started. + * enum sci_status SCI_SUCCESS + */ +static enum sci_status scic_sds_remote_node_context_success_start_task_handler( + struct scic_sds_remote_node_context *sci_rnc, + struct scic_sds_request *sci_req) +{ + return SCI_SUCCESS; +} + +/** + * + * @sci_rnc: + * @callback: + * @callback_parameter: + * + * This method handles destruct calls from the various state handlers. The + * remote node context can be requested to destroy from any state. If there was + * a user callback it is always replaced with the request to destroy user + * callback. enum sci_status + */ +static enum sci_status scic_sds_remote_node_context_general_destruct_handler( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + scic_sds_remote_node_context_setup_to_destory( + sci_rnc, callback, callback_parameter + ); + + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE + ); + + return SCI_SUCCESS; +} + +/* --------------------------------------------------------------------------- */ + +static enum sci_status scic_sds_remote_node_context_initial_state_resume_handler( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + if (sci_rnc->remote_node_index != SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) { + scic_sds_remote_node_context_setup_to_resume( + sci_rnc, callback, callback_parameter + ); + + scic_sds_remote_node_context_construct_buffer(sci_rnc); + + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE + ); + + return SCI_SUCCESS; + } + + return SCI_FAILURE_INVALID_STATE; +} + +/* --------------------------------------------------------------------------- */ + +static enum sci_status scic_sds_remote_node_context_posting_state_event_handler( + struct scic_sds_remote_node_context *sci_rnc, + u32 event_code) +{ + enum sci_status status; + + switch (scu_get_event_code(event_code)) { + case SCU_EVENT_POST_RNC_COMPLETE: + status = SCI_SUCCESS; + + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE + ); + break; + + default: + status = SCI_FAILURE; + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p requested to " + "process unexpected event 0x%x while in posting " + "state\n", + __func__, + sci_rnc, + event_code); + break; + } + + return status; +} + +/* --------------------------------------------------------------------------- */ + +static enum sci_status scic_sds_remote_node_context_invalidating_state_destruct_handler( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + scic_sds_remote_node_context_setup_to_destory( + sci_rnc, callback, callback_parameter + ); + + return SCI_SUCCESS; +} + +static enum sci_status scic_sds_remote_node_context_invalidating_state_event_handler( + struct scic_sds_remote_node_context *sci_rnc, + u32 event_code) +{ + enum sci_status status; + + if (scu_get_event_code(event_code) == SCU_EVENT_POST_RNC_INVALIDATE_COMPLETE) { + status = SCI_SUCCESS; + + if (sci_rnc->destination_state == SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_FINAL) { + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE + ); + } else { + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE + ); + } + } else { + switch (scu_get_event_type(event_code)) { + case SCU_EVENT_TYPE_RNC_SUSPEND_TX: + case SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX: + /* + * We really dont care if the hardware is going to suspend + * the device since it's being invalidated anyway */ + dev_dbg(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p was " + "suspeneded by hardware while being " + "invalidated.\n", + __func__, + sci_rnc); + status = SCI_SUCCESS; + break; + + default: + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p " + "requested to process event 0x%x while " + "in state %d.\n", + __func__, + sci_rnc, + event_code, + sci_base_state_machine_get_state( + &sci_rnc->state_machine)); + status = SCI_FAILURE; + break; + } + } + + return status; +} + +/* --------------------------------------------------------------------------- */ + + +static enum sci_status scic_sds_remote_node_context_resuming_state_event_handler( + struct scic_sds_remote_node_context *sci_rnc, + u32 event_code) +{ + enum sci_status status; + + if (scu_get_event_code(event_code) == SCU_EVENT_POST_RCN_RELEASE) { + status = SCI_SUCCESS; + + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE + ); + } else { + switch (scu_get_event_type(event_code)) { + case SCU_EVENT_TYPE_RNC_SUSPEND_TX: + case SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX: + /* + * We really dont care if the hardware is going to suspend + * the device since it's being resumed anyway */ + dev_dbg(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p was " + "suspeneded by hardware while being resumed.\n", + __func__, + sci_rnc); + status = SCI_SUCCESS; + break; + + default: + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p requested " + "to process event 0x%x while in state %d.\n", + __func__, + sci_rnc, + event_code, + sci_base_state_machine_get_state( + &sci_rnc->state_machine)); + status = SCI_FAILURE; + break; + } + } + + return status; +} + +/* --------------------------------------------------------------------------- */ + +/** + * + * @sci_rnc: The remote node context object being suspended. + * @callback: The callback when the suspension is complete. + * @callback_parameter: The parameter that is to be passed into the callback. + * + * This method will handle the suspend requests from the ready state. + * SCI_SUCCESS + */ +static enum sci_status scic_sds_remote_node_context_ready_state_suspend_handler( + struct scic_sds_remote_node_context *sci_rnc, + u32 suspend_type, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + sci_rnc->user_callback = callback; + sci_rnc->user_cookie = callback_parameter; + sci_rnc->suspension_code = suspend_type; + + if (suspend_type == SCI_SOFTWARE_SUSPENSION) { + scic_sds_remote_device_post_request(rnc_to_dev(sci_rnc), + SCU_CONTEXT_COMMAND_POST_RNC_SUSPEND_TX); + } + + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE + ); + + return SCI_SUCCESS; +} + +/** + * + * @sci_rnc: The rnc for which the io request is targeted. + * @sci_req: The request which is going to be started. + * + * This method determines if the io request can be started by the SCU hardware. + * When the RNC is in the ready state any io request can be started. enum sci_status + * SCI_SUCCESS + */ +static enum sci_status scic_sds_remote_node_context_ready_state_start_io_handler( + struct scic_sds_remote_node_context *sci_rnc, + struct scic_sds_request *sci_req) +{ + return SCI_SUCCESS; +} + + +static enum sci_status scic_sds_remote_node_context_ready_state_event_handler( + struct scic_sds_remote_node_context *sci_rnc, + u32 event_code) +{ + enum sci_status status; + + switch (scu_get_event_type(event_code)) { + case SCU_EVENT_TL_RNC_SUSPEND_TX: + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE + ); + + sci_rnc->suspension_code = scu_get_event_specifier(event_code); + status = SCI_SUCCESS; + break; + + case SCU_EVENT_TL_RNC_SUSPEND_TX_RX: + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE + ); + + sci_rnc->suspension_code = scu_get_event_specifier(event_code); + status = SCI_SUCCESS; + break; + + default: + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p requested to " + "process event 0x%x while in state %d.\n", + __func__, + sci_rnc, + event_code, + sci_base_state_machine_get_state( + &sci_rnc->state_machine)); + + status = SCI_FAILURE; + break; + } + + return status; +} + +/* --------------------------------------------------------------------------- */ + +static enum sci_status scic_sds_remote_node_context_tx_suspended_state_resume_handler( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + enum sci_status status; + struct smp_discover_response_protocols protocols; + + scic_sds_remote_node_context_setup_to_resume( + sci_rnc, callback, callback_parameter + ); + + /* TODO: consider adding a resume action of NONE, INVALIDATE, WRITE_TLCR */ + + scic_remote_device_get_protocols(rnc_to_dev(sci_rnc), &protocols); + + if ( + (protocols.u.bits.attached_ssp_target == 1) + || (protocols.u.bits.attached_smp_target == 1) + ) { + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE + ); + + status = SCI_SUCCESS; + } else if (protocols.u.bits.attached_stp_target == 1) { + if (rnc_to_dev(sci_rnc)->is_direct_attached) { + /* @todo Fix this since I am being silly in writing to the STPTLDARNI register. */ + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE + ); + } else { + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE + ); + } + + status = SCI_SUCCESS; + } else { + status = SCI_FAILURE; + } + + return status; +} + +/** + * + * @sci_rnc: The remote node context which is to receive the task request. + * @sci_req: The task request to be transmitted to to the remote target + * device. + * + * This method will report a success or failure attempt to start a new task + * request to the hardware. Since all task requests are sent on the high + * priority queue they can be sent when the RCN is in a TX suspend state. + * enum sci_status SCI_SUCCESS + */ +static enum sci_status scic_sds_remote_node_context_suspended_start_task_handler( + struct scic_sds_remote_node_context *sci_rnc, + struct scic_sds_request *sci_req) +{ + scic_sds_remote_node_context_resume(sci_rnc, NULL, NULL); + + return SCI_SUCCESS; +} + +/* --------------------------------------------------------------------------- */ + +static enum sci_status scic_sds_remote_node_context_tx_rx_suspended_state_resume_handler( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + scic_sds_remote_node_context_setup_to_resume( + sci_rnc, callback, callback_parameter + ); + + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE + ); + + return SCI_FAILURE_INVALID_STATE; +} + +/* --------------------------------------------------------------------------- */ + +/** + * + * + * + */ +static enum sci_status scic_sds_remote_node_context_await_suspension_state_resume_handler( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter) +{ + scic_sds_remote_node_context_setup_to_resume( + sci_rnc, callback, callback_parameter + ); + + return SCI_SUCCESS; +} + +/** + * + * @sci_rnc: The remote node context which is to receive the task request. + * @sci_req: The task request to be transmitted to to the remote target + * device. + * + * This method will report a success or failure attempt to start a new task + * request to the hardware. Since all task requests are sent on the high + * priority queue they can be sent when the RCN is in a TX suspend state. + * enum sci_status SCI_SUCCESS + */ +static enum sci_status scic_sds_remote_node_context_await_suspension_state_start_task_handler( + struct scic_sds_remote_node_context *sci_rnc, + struct scic_sds_request *sci_req) +{ + return SCI_SUCCESS; +} + +static enum sci_status scic_sds_remote_node_context_await_suspension_state_event_handler( + struct scic_sds_remote_node_context *sci_rnc, + u32 event_code) +{ + enum sci_status status; + + switch (scu_get_event_type(event_code)) { + case SCU_EVENT_TL_RNC_SUSPEND_TX: + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE + ); + + sci_rnc->suspension_code = scu_get_event_specifier(event_code); + status = SCI_SUCCESS; + break; + + case SCU_EVENT_TL_RNC_SUSPEND_TX_RX: + sci_base_state_machine_change_state( + &sci_rnc->state_machine, + SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE + ); + + sci_rnc->suspension_code = scu_get_event_specifier(event_code); + status = SCI_SUCCESS; + break; + + default: + dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), + "%s: SCIC Remote Node Context 0x%p requested to " + "process event 0x%x while in state %d.\n", + __func__, + sci_rnc, + event_code, + sci_base_state_machine_get_state( + &sci_rnc->state_machine)); + + status = SCI_FAILURE; + break; + } + + return status; +} + +/* --------------------------------------------------------------------------- */ + +static struct scic_sds_remote_node_context_handlers +scic_sds_remote_node_context_state_handler_table[ + SCIC_SDS_REMOTE_NODE_CONTEXT_MAX_STATES] = +{ + /* SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE */ + { + scic_sds_remote_node_context_default_destruct_handler, + scic_sds_remote_node_context_default_suspend_handler, + scic_sds_remote_node_context_initial_state_resume_handler, + scic_sds_remote_node_context_default_start_io_handler, + scic_sds_remote_node_context_default_start_task_handler, + scic_sds_remote_node_context_default_event_handler + }, + /* SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE */ + { + scic_sds_remote_node_context_general_destruct_handler, + scic_sds_remote_node_context_default_suspend_handler, + scic_sds_remote_node_context_continue_to_resume_handler, + scic_sds_remote_node_context_default_start_io_handler, + scic_sds_remote_node_context_default_start_task_handler, + scic_sds_remote_node_context_posting_state_event_handler + }, + /* SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE */ + { + scic_sds_remote_node_context_invalidating_state_destruct_handler, + scic_sds_remote_node_context_default_suspend_handler, + scic_sds_remote_node_context_continue_to_resume_handler, + scic_sds_remote_node_context_default_start_io_handler, + scic_sds_remote_node_context_default_start_task_handler, + scic_sds_remote_node_context_invalidating_state_event_handler + }, + /* SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE */ + { + scic_sds_remote_node_context_general_destruct_handler, + scic_sds_remote_node_context_default_suspend_handler, + scic_sds_remote_node_context_continue_to_resume_handler, + scic_sds_remote_node_context_default_start_io_handler, + scic_sds_remote_node_context_success_start_task_handler, + scic_sds_remote_node_context_resuming_state_event_handler + }, + /* SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE */ + { + scic_sds_remote_node_context_general_destruct_handler, + scic_sds_remote_node_context_ready_state_suspend_handler, + scic_sds_remote_node_context_default_resume_handler, + scic_sds_remote_node_context_ready_state_start_io_handler, + scic_sds_remote_node_context_success_start_task_handler, + scic_sds_remote_node_context_ready_state_event_handler + }, + /* SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE */ + { + scic_sds_remote_node_context_general_destruct_handler, + scic_sds_remote_node_context_default_suspend_handler, + scic_sds_remote_node_context_tx_suspended_state_resume_handler, + scic_sds_remote_node_context_default_start_io_handler, + scic_sds_remote_node_context_suspended_start_task_handler, + scic_sds_remote_node_context_default_event_handler + }, + /* SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE */ + { + scic_sds_remote_node_context_general_destruct_handler, + scic_sds_remote_node_context_default_suspend_handler, + scic_sds_remote_node_context_tx_rx_suspended_state_resume_handler, + scic_sds_remote_node_context_default_start_io_handler, + scic_sds_remote_node_context_suspended_start_task_handler, + scic_sds_remote_node_context_default_event_handler + }, + /* SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE */ + { + scic_sds_remote_node_context_general_destruct_handler, + scic_sds_remote_node_context_default_suspend_handler, + scic_sds_remote_node_context_await_suspension_state_resume_handler, + scic_sds_remote_node_context_default_start_io_handler, + scic_sds_remote_node_context_await_suspension_state_start_task_handler, + scic_sds_remote_node_context_await_suspension_state_event_handler + } +}; + +/* + * ***************************************************************************** + * * REMOTE NODE CONTEXT PRIVATE METHODS + * ***************************************************************************** */ + +/** + * + * + * This method just calls the user callback function and then resets the + * callback. + */ +static void scic_sds_remote_node_context_notify_user( + struct scic_sds_remote_node_context *rnc) +{ + if (rnc->user_callback != NULL) { + (*rnc->user_callback)(rnc->user_cookie); + + rnc->user_callback = NULL; + rnc->user_cookie = NULL; + } +} + +/** + * + * + * This method will continue the remote node context state machine by + * requesting to resume the remote node context state machine from its current + * state. + */ +static void scic_sds_remote_node_context_continue_state_transitions( + struct scic_sds_remote_node_context *rnc) +{ + if (rnc->destination_state == SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY) { + rnc->state_handlers->resume_handler( + rnc, rnc->user_callback, rnc->user_cookie + ); + } +} + +/** + * + * @sci_rnc: The remote node context object that is to be validated. + * + * This method will mark the rnc buffer as being valid and post the request to + * the hardware. none + */ +static void scic_sds_remote_node_context_validate_context_buffer( + struct scic_sds_remote_node_context *sci_rnc) +{ + struct scic_sds_remote_device *sci_dev = rnc_to_dev(sci_rnc); + union scu_remote_node_context *rnc_buffer; + + rnc_buffer = scic_sds_controller_get_remote_node_context_buffer( + scic_sds_remote_device_get_controller(sci_dev), + sci_rnc->remote_node_index + ); + + rnc_buffer->ssp.is_valid = true; + + if (!sci_dev->is_direct_attached && + sci_dev->target_protocols.u.bits.attached_stp_target) { + scic_sds_remote_device_post_request(sci_dev, + SCU_CONTEXT_COMMAND_POST_RNC_96); + } else { + scic_sds_remote_device_post_request(sci_dev, SCU_CONTEXT_COMMAND_POST_RNC_32); + + if (sci_dev->is_direct_attached) { + scic_sds_port_setup_transports(sci_dev->owning_port, + sci_rnc->remote_node_index); + } + } +} + +/** + * + * @sci_rnc: The remote node context object that is to be invalidated. + * + * This method will update the RNC buffer and post the invalidate request. none + */ +static void scic_sds_remote_node_context_invalidate_context_buffer( + struct scic_sds_remote_node_context *sci_rnc) +{ + union scu_remote_node_context *rnc_buffer; + + rnc_buffer = scic_sds_controller_get_remote_node_context_buffer( + scic_sds_remote_device_get_controller(rnc_to_dev(sci_rnc)), + sci_rnc->remote_node_index); + + rnc_buffer->ssp.is_valid = false; + + scic_sds_remote_device_post_request(rnc_to_dev(sci_rnc), + SCU_CONTEXT_COMMAND_POST_RNC_INVALIDATE); +} + +/* + * ***************************************************************************** + * * REMOTE NODE CONTEXT STATE ENTER AND EXIT METHODS + * ***************************************************************************** */ + +/** + * + * + * + */ +static void scic_sds_remote_node_context_initial_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_node_context *rnc; + + rnc = (struct scic_sds_remote_node_context *)object; + + SET_STATE_HANDLER( + rnc, + scic_sds_remote_node_context_state_handler_table, + SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE + ); + + /* + * Check to see if we have gotten back to the initial state because someone + * requested to destroy the remote node context object. */ + if ( + rnc->state_machine.previous_state_id + == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE + ) { + rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; + + scic_sds_remote_node_context_notify_user(rnc); + } +} + +/** + * + * + * + */ +static void scic_sds_remote_node_context_posting_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_node_context *sci_rnc; + + sci_rnc = (struct scic_sds_remote_node_context *)object; + + SET_STATE_HANDLER( + sci_rnc, + scic_sds_remote_node_context_state_handler_table, + SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE + ); + + scic_sds_remote_node_context_validate_context_buffer(sci_rnc); +} + +/** + * + * + * + */ +static void scic_sds_remote_node_context_invalidating_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_node_context *rnc; + + rnc = (struct scic_sds_remote_node_context *)object; + + SET_STATE_HANDLER( + rnc, + scic_sds_remote_node_context_state_handler_table, + SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE + ); + + scic_sds_remote_node_context_invalidate_context_buffer(rnc); +} + +/** + * + * + * + */ +static void scic_sds_remote_node_context_resuming_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_node_context *rnc; + struct smp_discover_response_protocols protocols; + struct scic_sds_remote_device *sci_dev; + + rnc = (struct scic_sds_remote_node_context *)object; + sci_dev = rnc_to_dev(rnc); + + SET_STATE_HANDLER( + rnc, + scic_sds_remote_node_context_state_handler_table, + SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE + ); + + /* + * For direct attached SATA devices we need to clear the TLCR + * NCQ to TCi tag mapping on the phy and in cases where we + * resume because of a target reset we also need to update + * the STPTLDARNI register with the RNi of the device + */ + scic_remote_device_get_protocols(sci_dev, &protocols); + + if (protocols.u.bits.attached_stp_target == 1 && + sci_dev->is_direct_attached) { + scic_sds_port_setup_transports(sci_dev->owning_port, + rnc->remote_node_index); + } + + scic_sds_remote_device_post_request(sci_dev, SCU_CONTEXT_COMMAND_POST_RNC_RESUME); +} + +/** + * + * + * + */ +static void scic_sds_remote_node_context_ready_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_node_context *rnc; + + rnc = (struct scic_sds_remote_node_context *)object; + + SET_STATE_HANDLER( + rnc, + scic_sds_remote_node_context_state_handler_table, + SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE + ); + + rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; + + if (rnc->user_callback != NULL) { + scic_sds_remote_node_context_notify_user(rnc); + } +} + +/** + * + * + * + */ +static void scic_sds_remote_node_context_tx_suspended_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_node_context *rnc; + + rnc = (struct scic_sds_remote_node_context *)object; + + SET_STATE_HANDLER( + rnc, + scic_sds_remote_node_context_state_handler_table, + SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE + ); + + scic_sds_remote_node_context_continue_state_transitions(rnc); +} + +/** + * + * + * + */ +static void scic_sds_remote_node_context_tx_rx_suspended_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_node_context *rnc; + + rnc = (struct scic_sds_remote_node_context *)object; + + SET_STATE_HANDLER( + rnc, + scic_sds_remote_node_context_state_handler_table, + SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE + ); + + scic_sds_remote_node_context_continue_state_transitions(rnc); +} + +/** + * + * + * + */ +static void scic_sds_remote_node_context_await_suspension_state_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_node_context *rnc; + + rnc = (struct scic_sds_remote_node_context *)object; + + SET_STATE_HANDLER( + rnc, + scic_sds_remote_node_context_state_handler_table, + SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE + ); +} + +/* --------------------------------------------------------------------------- */ + +static const struct sci_base_state scic_sds_remote_node_context_state_table[] = { + [SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE] = { + .enter_state = scic_sds_remote_node_context_initial_state_enter, + }, + [SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE] = { + .enter_state = scic_sds_remote_node_context_posting_state_enter, + }, + [SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE] = { + .enter_state = scic_sds_remote_node_context_invalidating_state_enter, + }, + [SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE] = { + .enter_state = scic_sds_remote_node_context_resuming_state_enter, + }, + [SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE] = { + .enter_state = scic_sds_remote_node_context_ready_state_enter, + }, + [SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE] = { + .enter_state = scic_sds_remote_node_context_tx_suspended_state_enter, + }, + [SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE] = { + .enter_state = scic_sds_remote_node_context_tx_rx_suspended_state_enter, + }, + [SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE] = { + .enter_state = scic_sds_remote_node_context_await_suspension_state_enter, + }, +}; + +void scic_sds_remote_node_context_construct(struct scic_sds_remote_node_context *rnc, + u16 remote_node_index) +{ + memset(rnc, 0, sizeof(struct scic_sds_remote_node_context)); + + rnc->remote_node_index = remote_node_index; + rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; + + sci_base_state_machine_construct( + &rnc->state_machine, + &rnc->parent, + scic_sds_remote_node_context_state_table, + SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE + ); + + sci_base_state_machine_start(&rnc->state_machine); +} diff --git a/drivers/scsi/isci/remote_node_context.h b/drivers/scsi/isci/remote_node_context.h new file mode 100644 index 00000000000..b3f2546090d --- /dev/null +++ b/drivers/scsi/isci/remote_node_context.h @@ -0,0 +1,301 @@ +/* + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * BSD LICENSE + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _SCIC_SDS_REMOTE_NODE_CONTEXT_H_ +#define _SCIC_SDS_REMOTE_NODE_CONTEXT_H_ + +/** + * This file contains the structures, constants, and prototypes associated with + * the remote node context in the silicon. It exists to model and manage + * the remote node context in the silicon. + * + * + */ + +#include "sci_base_state.h" +#include "sci_base_state_machine.h" + +/** + * + * + * This constant represents an invalid remote device id, it is used to program + * the STPDARNI register so the driver knows when it has received a SIGNATURE + * FIS from the SCU. + */ +#define SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX 0x0FFF + +#define SCU_HARDWARE_SUSPENSION (0) +#define SCI_SOFTWARE_SUSPENSION (1) + +struct scic_sds_request; +struct scic_sds_remote_device; +struct scic_sds_remote_node_context; + +typedef void (*scics_sds_remote_node_context_callback)(void *); + +typedef enum sci_status (*scic_sds_remote_node_context_operation)( + struct scic_sds_remote_node_context *sci_rnc, + scics_sds_remote_node_context_callback callback, + void *callback_parameter + ); + +typedef enum sci_status (*scic_sds_remote_node_context_suspend_operation)( + struct scic_sds_remote_node_context *sci_rnc, + u32 suspension_type, + scics_sds_remote_node_context_callback callback, + void *callback_parameter + ); + +typedef enum sci_status (*scic_sds_remote_node_context_io_request)( + struct scic_sds_remote_node_context *sci_rnc, + struct scic_sds_request *sci_req + ); + +typedef enum sci_status (*scic_sds_remote_node_context_event_handler)( + struct scic_sds_remote_node_context *sci_rnc, + u32 event_code + ); + +struct scic_sds_remote_node_context_handlers { + /** + * This handle is invoked to stop the RNC. The callback is invoked when after + * the hardware notification that the RNC has been invalidated. + */ + scic_sds_remote_node_context_operation destruct_handler; + + /** + * This handler is invoked when there is a request to suspend the RNC. The + * callback is invoked after the hardware notification that the remote node is + * suspended. + */ + scic_sds_remote_node_context_suspend_operation suspend_handler; + + /** + * This handler is invoked when there is a request to resume the RNC. The + * callback is invoked when after the RNC has reached the ready state. + */ + scic_sds_remote_node_context_operation resume_handler; + + /** + * This handler is invoked when there is a request to start an io request + * operation. + */ + scic_sds_remote_node_context_io_request start_io_handler; + + /** + * This handler is invoked when there is a request to start a task request + * operation. + */ + scic_sds_remote_node_context_io_request start_task_handler; + + /** + * This handler is invoked where there is an RNC event that must be processed. + */ + scic_sds_remote_node_context_event_handler event_handler; + +}; + +/** + * This is the enumeration of the remote node context states. + */ +enum scis_sds_remote_node_context_states { + /** + * This state is the initial state for a remote node context. On a resume + * request the remote node context will transition to the posting state. + */ + SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE, + + /** + * This is a transition state that posts the RNi to the hardware. Once the RNC + * is posted the remote node context will be made ready. + */ + SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE, + + /** + * This is a transition state that will post an RNC invalidate to the + * hardware. Once the invalidate is complete the remote node context will + * transition to the posting state. + */ + SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE, + + /** + * This is a transition state that will post an RNC resume to the hardare. + * Once the event notification of resume complete is received the remote node + * context will transition to the ready state. + */ + SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE, + + /** + * This is the state that the remote node context must be in to accept io + * request operations. + */ + SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE, + + /** + * This is the state that the remote node context transitions to when it gets + * a TX suspend notification from the hardware. + */ + SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE, + + /** + * This is the state that the remote node context transitions to when it gets + * a TX RX suspend notification from the hardware. + */ + SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE, + + /** + * This state is a wait state for the remote node context that waits for a + * suspend notification from the hardware. This state is entered when either + * there is a request to supend the remote node context or when there is a TC + * completion where the remote node will be suspended by the hardware. + */ + SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE, + + SCIC_SDS_REMOTE_NODE_CONTEXT_MAX_STATES + +}; + +/** + * + * + * This enumeration is used to define the end destination state for the remote + * node context. + */ +enum scic_sds_remote_node_context_destination_state { + SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED, + SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY, + SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_FINAL +}; + +/** + * struct scic_sds_remote_node_context - This structure contains the data + * associated with the remote node context object. The remote node context + * (RNC) object models the the remote device information necessary to manage + * the silicon RNC. + */ +struct scic_sds_remote_node_context { + /* + * parent object + */ + struct sci_base_object parent; + + /** + * This field indicates the remote node index (RNI) associated with + * this RNC. + */ + u16 remote_node_index; + + /** + * This field is the recored suspension code or the reason for the remote node + * context suspension. + */ + u32 suspension_code; + + /** + * This field is true if the remote node context is resuming from its current + * state. This can cause an automatic resume on receiving a suspension + * notification. + */ + enum scic_sds_remote_node_context_destination_state destination_state; + + /** + * This field contains the callback function that the user requested to be + * called when the requested state transition is complete. + */ + scics_sds_remote_node_context_callback user_callback; + + /** + * This field contains the parameter that is called when the user requested + * state transition is completed. + */ + void *user_cookie; + + /** + * This field contains the data for the object's state machine. + */ + struct sci_base_state_machine state_machine; + + struct scic_sds_remote_node_context_handlers *state_handlers; +}; + +void scic_sds_remote_node_context_construct(struct scic_sds_remote_node_context *rnc, + u16 remote_node_index); + + +bool scic_sds_remote_node_context_is_ready( + struct scic_sds_remote_node_context *sci_rnc); + +#define scic_sds_remote_node_context_get_remote_node_index(rcn) \ + ((rnc)->remote_node_index) + +#define scic_sds_remote_node_context_event_handler(rnc, event_code) \ + ((rnc)->state_handlers->event_handler(rnc, event_code)) + +#define scic_sds_remote_node_context_resume(rnc, callback, parameter) \ + ((rnc)->state_handlers->resume_handler(rnc, callback, parameter)) + +#define scic_sds_remote_node_context_suspend(rnc, suspend_type, callback, parameter) \ + ((rnc)->state_handlers->suspend_handler(rnc, suspend_type, callback, parameter)) + +#define scic_sds_remote_node_context_destruct(rnc, callback, parameter) \ + ((rnc)->state_handlers->destruct_handler(rnc, callback, parameter)) + +#define scic_sds_remote_node_context_start_io(rnc, request) \ + ((rnc)->state_handlers->start_io_handler(rnc, request)) + +#define scic_sds_remote_node_context_start_task(rnc, task) \ + ((rnc)->state_handlers->start_task_handler(rnc, task)) + +#endif /* _SCIC_SDS_REMOTE_NODE_CONTEXT_H_ */ diff --git a/drivers/scsi/isci/remote_node_table.c b/drivers/scsi/isci/remote_node_table.c new file mode 100644 index 00000000000..8886146d9db --- /dev/null +++ b/drivers/scsi/isci/remote_node_table.c @@ -0,0 +1,600 @@ +/* + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * BSD LICENSE + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * This file contains the implementation of the SCIC_SDS_REMOTE_NODE_TABLE + * public, protected, and private methods. + * + * + */ +#include "sci_util.h" +#include "sci_environment.h" +#include "remote_node_table.h" +#include "remote_node_context.h" + +/** + * + * @remote_node_table: This is the remote node index table from which the + * selection will be made. + * @group_table_index: This is the index to the group table from which to + * search for an available selection. + * + * This routine will find the bit position in absolute bit terms of the next 32 + * + bit position. If there are available bits in the first u32 then it is + * just bit position. u32 This is the absolute bit position for an available + * group. + */ +static u32 scic_sds_remote_node_table_get_group_index( + struct scic_remote_node_table *remote_node_table, + u32 group_table_index) +{ + u32 dword_index; + u32 *group_table; + u32 bit_index; + + group_table = remote_node_table->remote_node_groups[group_table_index]; + + for (dword_index = 0; dword_index < remote_node_table->group_array_size; dword_index++) { + if (group_table[dword_index] != 0) { + for (bit_index = 0; bit_index < 32; bit_index++) { + if ((group_table[dword_index] & (1 << bit_index)) != 0) { + return (dword_index * 32) + bit_index; + } + } + } + } + + return SCIC_SDS_REMOTE_NODE_TABLE_INVALID_INDEX; +} + +/** + * + * @out]: remote_node_table This the remote node table in which to clear the + * selector. + * @set_index: This is the remote node selector in which the change will be + * made. + * @group_index: This is the bit index in the table to be modified. + * + * This method will clear the group index entry in the specified group index + * table. none + */ +static void scic_sds_remote_node_table_clear_group_index( + struct scic_remote_node_table *remote_node_table, + u32 group_table_index, + u32 group_index) +{ + u32 dword_index; + u32 bit_index; + u32 *group_table; + + BUG_ON(group_table_index >= SCU_STP_REMOTE_NODE_COUNT); + BUG_ON(group_index >= (u32)(remote_node_table->group_array_size * 32)); + + dword_index = group_index / 32; + bit_index = group_index % 32; + group_table = remote_node_table->remote_node_groups[group_table_index]; + + group_table[dword_index] = group_table[dword_index] & ~(1 << bit_index); +} + +/** + * + * @out]: remote_node_table This the remote node table in which to set the + * selector. + * @group_table_index: This is the remote node selector in which the change + * will be made. + * @group_index: This is the bit position in the table to be modified. + * + * This method will set the group index bit entry in the specified gropu index + * table. none + */ +static void scic_sds_remote_node_table_set_group_index( + struct scic_remote_node_table *remote_node_table, + u32 group_table_index, + u32 group_index) +{ + u32 dword_index; + u32 bit_index; + u32 *group_table; + + BUG_ON(group_table_index >= SCU_STP_REMOTE_NODE_COUNT); + BUG_ON(group_index >= (u32)(remote_node_table->group_array_size * 32)); + + dword_index = group_index / 32; + bit_index = group_index % 32; + group_table = remote_node_table->remote_node_groups[group_table_index]; + + group_table[dword_index] = group_table[dword_index] | (1 << bit_index); +} + +/** + * + * @out]: remote_node_table This is the remote node table in which to modify + * the remote node availability. + * @remote_node_index: This is the remote node index that is being returned to + * the table. + * + * This method will set the remote to available in the remote node allocation + * table. none + */ +static void scic_sds_remote_node_table_set_node_index( + struct scic_remote_node_table *remote_node_table, + u32 remote_node_index) +{ + u32 dword_location; + u32 dword_remainder; + u32 slot_normalized; + u32 slot_position; + + BUG_ON( + (remote_node_table->available_nodes_array_size * SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD) + <= (remote_node_index / SCU_STP_REMOTE_NODE_COUNT) + ); + + dword_location = remote_node_index / SCIC_SDS_REMOTE_NODES_PER_DWORD; + dword_remainder = remote_node_index % SCIC_SDS_REMOTE_NODES_PER_DWORD; + slot_normalized = (dword_remainder / SCU_STP_REMOTE_NODE_COUNT) * sizeof(u32); + slot_position = remote_node_index % SCU_STP_REMOTE_NODE_COUNT; + + remote_node_table->available_remote_nodes[dword_location] |= + 1 << (slot_normalized + slot_position); +} + +/** + * + * @out]: remote_node_table This is the remote node table from which to clear + * the available remote node bit. + * @remote_node_index: This is the remote node index which is to be cleared + * from the table. + * + * This method clears the remote node index from the table of available remote + * nodes. none + */ +static void scic_sds_remote_node_table_clear_node_index( + struct scic_remote_node_table *remote_node_table, + u32 remote_node_index) +{ + u32 dword_location; + u32 dword_remainder; + u32 slot_position; + u32 slot_normalized; + + BUG_ON( + (remote_node_table->available_nodes_array_size * SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD) + <= (remote_node_index / SCU_STP_REMOTE_NODE_COUNT) + ); + + dword_location = remote_node_index / SCIC_SDS_REMOTE_NODES_PER_DWORD; + dword_remainder = remote_node_index % SCIC_SDS_REMOTE_NODES_PER_DWORD; + slot_normalized = (dword_remainder / SCU_STP_REMOTE_NODE_COUNT) * sizeof(u32); + slot_position = remote_node_index % SCU_STP_REMOTE_NODE_COUNT; + + remote_node_table->available_remote_nodes[dword_location] &= + ~(1 << (slot_normalized + slot_position)); +} + +/** + * + * @out]: remote_node_table The remote node table from which the slot will be + * cleared. + * @group_index: The index for the slot that is to be cleared. + * + * This method clears the entire table slot at the specified slot index. none + */ +static void scic_sds_remote_node_table_clear_group( + struct scic_remote_node_table *remote_node_table, + u32 group_index) +{ + u32 dword_location; + u32 dword_remainder; + u32 dword_value; + + BUG_ON( + (remote_node_table->available_nodes_array_size * SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD) + <= (group_index / SCU_STP_REMOTE_NODE_COUNT) + ); + + dword_location = group_index / SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD; + dword_remainder = group_index % SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD; + + dword_value = remote_node_table->available_remote_nodes[dword_location]; + dword_value &= ~(SCIC_SDS_REMOTE_NODE_TABLE_FULL_SLOT_VALUE << (dword_remainder * 4)); + remote_node_table->available_remote_nodes[dword_location] = dword_value; +} + +/** + * + * @remote_node_table: + * + * THis method sets an entire remote node group in the remote node table. + */ +static void scic_sds_remote_node_table_set_group( + struct scic_remote_node_table *remote_node_table, + u32 group_index) +{ + u32 dword_location; + u32 dword_remainder; + u32 dword_value; + + BUG_ON( + (remote_node_table->available_nodes_array_size * SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD) + <= (group_index / SCU_STP_REMOTE_NODE_COUNT) + ); + + dword_location = group_index / SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD; + dword_remainder = group_index % SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD; + + dword_value = remote_node_table->available_remote_nodes[dword_location]; + dword_value |= (SCIC_SDS_REMOTE_NODE_TABLE_FULL_SLOT_VALUE << (dword_remainder * 4)); + remote_node_table->available_remote_nodes[dword_location] = dword_value; +} + +/** + * + * @remote_node_table: This is the remote node table that for which the group + * value is to be returned. + * @group_index: This is the group index to use to find the group value. + * + * This method will return the group value for the specified group index. The + * bit values at the specified remote node group index. + */ +static u8 scic_sds_remote_node_table_get_group_value( + struct scic_remote_node_table *remote_node_table, + u32 group_index) +{ + u32 dword_location; + u32 dword_remainder; + u32 dword_value; + + dword_location = group_index / SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD; + dword_remainder = group_index % SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD; + + dword_value = remote_node_table->available_remote_nodes[dword_location]; + dword_value &= (SCIC_SDS_REMOTE_NODE_TABLE_FULL_SLOT_VALUE << (dword_remainder * 4)); + dword_value = dword_value >> (dword_remainder * 4); + + return (u8)dword_value; +} + +/** + * + * @out]: remote_node_table The remote that which is to be initialized. + * @remote_node_entries: The number of entries to put in the table. + * + * This method will initialize the remote node table for use. none + */ +void scic_sds_remote_node_table_initialize( + struct scic_remote_node_table *remote_node_table, + u32 remote_node_entries) +{ + u32 index; + + /* + * Initialize the raw data we could improve the speed by only initializing + * those entries that we are actually going to be used */ + memset( + remote_node_table->available_remote_nodes, + 0x00, + sizeof(remote_node_table->available_remote_nodes) + ); + + memset( + remote_node_table->remote_node_groups, + 0x00, + sizeof(remote_node_table->remote_node_groups) + ); + + /* Initialize the available remote node sets */ + remote_node_table->available_nodes_array_size = (u16) + (remote_node_entries / SCIC_SDS_REMOTE_NODES_PER_DWORD) + + ((remote_node_entries % SCIC_SDS_REMOTE_NODES_PER_DWORD) != 0); + + + /* Initialize each full DWORD to a FULL SET of remote nodes */ + for (index = 0; index < remote_node_entries; index++) { + scic_sds_remote_node_table_set_node_index(remote_node_table, index); + } + + remote_node_table->group_array_size = (u16) + (remote_node_entries / (SCU_STP_REMOTE_NODE_COUNT * 32)) + + ((remote_node_entries % (SCU_STP_REMOTE_NODE_COUNT * 32)) != 0); + + for (index = 0; index < (remote_node_entries / SCU_STP_REMOTE_NODE_COUNT); index++) { + /* + * These are all guaranteed to be full slot values so fill them in the + * available sets of 3 remote nodes */ + scic_sds_remote_node_table_set_group_index(remote_node_table, 2, index); + } + + /* Now fill in any remainders that we may find */ + if ((remote_node_entries % SCU_STP_REMOTE_NODE_COUNT) == 2) { + scic_sds_remote_node_table_set_group_index(remote_node_table, 1, index); + } else if ((remote_node_entries % SCU_STP_REMOTE_NODE_COUNT) == 1) { + scic_sds_remote_node_table_set_group_index(remote_node_table, 0, index); + } +} + +/** + * + * @out]: remote_node_table The remote node table from which to allocate a + * remote node. + * @table_index: The group index that is to be used for the search. + * + * This method will allocate a single RNi from the remote node table. The + * table index will determine from which remote node group table to search. + * This search may fail and another group node table can be specified. The + * function is designed to allow a serach of the available single remote node + * group up to the triple remote node group. If an entry is found in the + * specified table the remote node is removed and the remote node groups are + * updated. The RNi value or an invalid remote node context if an RNi can not + * be found. + */ +static u16 scic_sds_remote_node_table_allocate_single_remote_node( + struct scic_remote_node_table *remote_node_table, + u32 group_table_index) +{ + u8 index; + u8 group_value; + u32 group_index; + u16 remote_node_index = SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX; + + group_index = scic_sds_remote_node_table_get_group_index( + remote_node_table, group_table_index); + + /* We could not find an available slot in the table selector 0 */ + if (group_index != SCIC_SDS_REMOTE_NODE_TABLE_INVALID_INDEX) { + group_value = scic_sds_remote_node_table_get_group_value( + remote_node_table, group_index); + + for (index = 0; index < SCU_STP_REMOTE_NODE_COUNT; index++) { + if (((1 << index) & group_value) != 0) { + /* We have selected a bit now clear it */ + remote_node_index = (u16)(group_index * SCU_STP_REMOTE_NODE_COUNT + + index); + + scic_sds_remote_node_table_clear_group_index( + remote_node_table, group_table_index, group_index + ); + + scic_sds_remote_node_table_clear_node_index( + remote_node_table, remote_node_index + ); + + if (group_table_index > 0) { + scic_sds_remote_node_table_set_group_index( + remote_node_table, group_table_index - 1, group_index + ); + } + + break; + } + } + } + + return remote_node_index; +} + +/** + * + * @remote_node_table: This is the remote node table from which to allocate the + * remote node entries. + * @group_table_index: THis is the group table index which must equal two (2) + * for this operation. + * + * This method will allocate three consecutive remote node context entries. If + * there are no remaining triple entries the function will return a failure. + * The remote node index that represents three consecutive remote node entries + * or an invalid remote node context if none can be found. + */ +static u16 scic_sds_remote_node_table_allocate_triple_remote_node( + struct scic_remote_node_table *remote_node_table, + u32 group_table_index) +{ + u32 group_index; + u16 remote_node_index = SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX; + + group_index = scic_sds_remote_node_table_get_group_index( + remote_node_table, group_table_index); + + if (group_index != SCIC_SDS_REMOTE_NODE_TABLE_INVALID_INDEX) { + remote_node_index = (u16)group_index * SCU_STP_REMOTE_NODE_COUNT; + + scic_sds_remote_node_table_clear_group_index( + remote_node_table, group_table_index, group_index + ); + + scic_sds_remote_node_table_clear_group( + remote_node_table, group_index + ); + } + + return remote_node_index; +} + +/** + * + * @remote_node_table: This is the remote node table from which the remote node + * allocation is to take place. + * @remote_node_count: This is ther remote node count which is one of + * SCU_SSP_REMOTE_NODE_COUNT(1) or SCU_STP_REMOTE_NODE_COUNT(3). + * + * This method will allocate a remote node that mataches the remote node count + * specified by the caller. Valid values for remote node count is + * SCU_SSP_REMOTE_NODE_COUNT(1) or SCU_STP_REMOTE_NODE_COUNT(3). u16 This is + * the remote node index that is returned or an invalid remote node context. + */ +u16 scic_sds_remote_node_table_allocate_remote_node( + struct scic_remote_node_table *remote_node_table, + u32 remote_node_count) +{ + u16 remote_node_index = SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX; + + if (remote_node_count == SCU_SSP_REMOTE_NODE_COUNT) { + remote_node_index = + scic_sds_remote_node_table_allocate_single_remote_node( + remote_node_table, 0); + + if (remote_node_index == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) { + remote_node_index = + scic_sds_remote_node_table_allocate_single_remote_node( + remote_node_table, 1); + } + + if (remote_node_index == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) { + remote_node_index = + scic_sds_remote_node_table_allocate_single_remote_node( + remote_node_table, 2); + } + } else if (remote_node_count == SCU_STP_REMOTE_NODE_COUNT) { + remote_node_index = + scic_sds_remote_node_table_allocate_triple_remote_node( + remote_node_table, 2); + } + + return remote_node_index; +} + +/** + * + * @remote_node_table: + * + * This method will free a single remote node index back to the remote node + * table. This routine will update the remote node groups + */ +static void scic_sds_remote_node_table_release_single_remote_node( + struct scic_remote_node_table *remote_node_table, + u16 remote_node_index) +{ + u32 group_index; + u8 group_value; + + group_index = remote_node_index / SCU_STP_REMOTE_NODE_COUNT; + + group_value = scic_sds_remote_node_table_get_group_value(remote_node_table, group_index); + + /* + * Assert that we are not trying to add an entry to a slot that is already + * full. */ + BUG_ON(group_value == SCIC_SDS_REMOTE_NODE_TABLE_FULL_SLOT_VALUE); + + if (group_value == 0x00) { + /* + * There are no entries in this slot so it must be added to the single + * slot table. */ + scic_sds_remote_node_table_set_group_index(remote_node_table, 0, group_index); + } else if ((group_value & (group_value - 1)) == 0) { + /* + * There is only one entry in this slot so it must be moved from the + * single slot table to the dual slot table */ + scic_sds_remote_node_table_clear_group_index(remote_node_table, 0, group_index); + scic_sds_remote_node_table_set_group_index(remote_node_table, 1, group_index); + } else { + /* + * There are two entries in the slot so it must be moved from the dual + * slot table to the tripple slot table. */ + scic_sds_remote_node_table_clear_group_index(remote_node_table, 1, group_index); + scic_sds_remote_node_table_set_group_index(remote_node_table, 2, group_index); + } + + scic_sds_remote_node_table_set_node_index(remote_node_table, remote_node_index); +} + +/** + * + * @remote_node_table: This is the remote node table to which the remote node + * index is to be freed. + * + * This method will release a group of three consecutive remote nodes back to + * the free remote nodes. + */ +static void scic_sds_remote_node_table_release_triple_remote_node( + struct scic_remote_node_table *remote_node_table, + u16 remote_node_index) +{ + u32 group_index; + + group_index = remote_node_index / SCU_STP_REMOTE_NODE_COUNT; + + scic_sds_remote_node_table_set_group_index( + remote_node_table, 2, group_index + ); + + scic_sds_remote_node_table_set_group(remote_node_table, group_index); +} + +/** + * + * @remote_node_table: The remote node table to which the remote node index is + * to be freed. + * @remote_node_count: This is the count of consecutive remote nodes that are + * to be freed. + * + * This method will release the remote node index back into the remote node + * table free pool. + */ +void scic_sds_remote_node_table_release_remote_node_index( + struct scic_remote_node_table *remote_node_table, + u32 remote_node_count, + u16 remote_node_index) +{ + if (remote_node_count == SCU_SSP_REMOTE_NODE_COUNT) { + scic_sds_remote_node_table_release_single_remote_node( + remote_node_table, remote_node_index); + } else if (remote_node_count == SCU_STP_REMOTE_NODE_COUNT) { + scic_sds_remote_node_table_release_triple_remote_node( + remote_node_table, remote_node_index); + } +} + diff --git a/drivers/scsi/isci/remote_node_table.h b/drivers/scsi/isci/remote_node_table.h new file mode 100644 index 00000000000..9c02a6ccb2f --- /dev/null +++ b/drivers/scsi/isci/remote_node_table.h @@ -0,0 +1,195 @@ +/* + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * BSD LICENSE + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _SCIC_SDS_REMOTE_NODE_TABLE_H_ +#define _SCIC_SDS_REMOTE_NODE_TABLE_H_ + +/** + * This file contains the structures, constants and prototypes used for the + * remote node table. + * + * + */ + +#include "sci_controller_constants.h" + +/** + * + * + * Remote node sets are sets of remote node index in the remtoe node table The + * SCU hardware requires that STP remote node entries take three consecutive + * remote node index so the table is arranged in sets of three. The bits are + * used as 0111 0111 to make a byte and the bits define the set of three remote + * nodes to use as a sequence. + */ +#define SCIC_SDS_REMOTE_NODE_SETS_PER_BYTE 2 + +/** + * + * + * Since the remote node table is organized as DWORDS take the remote node sets + * in bytes and represent them in DWORDs. The lowest ordered bits are the ones + * used in case full DWORD is not being used. i.e. 0000 0000 0000 0000 0111 + * 0111 0111 0111 // if only a single WORD is in use in the DWORD. + */ +#define SCIC_SDS_REMOTE_NODE_SETS_PER_DWORD \ + (sizeof(u32) * SCIC_SDS_REMOTE_NODE_SETS_PER_BYTE) +/** + * + * + * This is a count of the numeber of remote nodes that can be represented in a + * byte + */ +#define SCIC_SDS_REMOTE_NODES_PER_BYTE \ + (SCU_STP_REMOTE_NODE_COUNT * SCIC_SDS_REMOTE_NODE_SETS_PER_BYTE) + +/** + * + * + * This is a count of the number of remote nodes that can be represented in a + * DWROD + */ +#define SCIC_SDS_REMOTE_NODES_PER_DWORD \ + (sizeof(u32) * SCIC_SDS_REMOTE_NODES_PER_BYTE) + +/** + * + * + * This is the number of bits in a remote node group + */ +#define SCIC_SDS_REMOTE_NODES_BITS_PER_GROUP 4 + +#define SCIC_SDS_REMOTE_NODE_TABLE_INVALID_INDEX (0xFFFFFFFF) +#define SCIC_SDS_REMOTE_NODE_TABLE_FULL_SLOT_VALUE (0x07) +#define SCIC_SDS_REMOTE_NODE_TABLE_EMPTY_SLOT_VALUE (0x00) + +/** + * + * + * Expander attached sata remote node count + */ +#define SCU_STP_REMOTE_NODE_COUNT 3 + +/** + * + * + * Expander or direct attached ssp remote node count + */ +#define SCU_SSP_REMOTE_NODE_COUNT 1 + +/** + * + * + * Direct attached STP remote node count + */ +#define SCU_SATA_REMOTE_NODE_COUNT 1 + +/** + * struct scic_remote_node_table - + * + * + */ +struct scic_remote_node_table { + /** + * This field contains the array size in dwords + */ + u16 available_nodes_array_size; + + /** + * This field contains the array size of the + */ + u16 group_array_size; + + /** + * This field is the array of available remote node entries in bits. + * Because of the way STP remote node data is allocated on the SCU hardware + * the remote nodes must occupy three consecutive remote node context + * entries. For ease of allocation and de-allocation we have broken the + * sets of three into a single nibble. When the STP RNi is allocated all + * of the bits in the nibble are cleared. This math results in a table size + * of MAX_REMOTE_NODES / CONSECUTIVE RNi ENTRIES for STP / 2 entries per byte. + */ + u32 available_remote_nodes[ + (SCI_MAX_REMOTE_DEVICES / SCIC_SDS_REMOTE_NODES_PER_DWORD) + + ((SCI_MAX_REMOTE_DEVICES % SCIC_SDS_REMOTE_NODES_PER_DWORD) != 0)]; + + /** + * This field is the nibble selector for the above table. There are three + * possible selectors each for fast lookup when trying to find one, two or + * three remote node entries. + */ + u32 remote_node_groups[ + SCU_STP_REMOTE_NODE_COUNT][ + (SCI_MAX_REMOTE_DEVICES / (32 * SCU_STP_REMOTE_NODE_COUNT)) + + ((SCI_MAX_REMOTE_DEVICES % (32 * SCU_STP_REMOTE_NODE_COUNT)) != 0)]; + +}; + +/* --------------------------------------------------------------------------- */ + +void scic_sds_remote_node_table_initialize( + struct scic_remote_node_table *remote_node_table, + u32 remote_node_entries); + +u16 scic_sds_remote_node_table_allocate_remote_node( + struct scic_remote_node_table *remote_node_table, + u32 remote_node_count); + +void scic_sds_remote_node_table_release_remote_node_index( + struct scic_remote_node_table *remote_node_table, + u32 remote_node_count, + u16 remote_node_index); + +#endif /* _SCIC_SDS_REMOTE_NODE_TABLE_H_ */ diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index 8d2125b520e..ff5c05a1954 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -54,7 +54,6 @@ */ #include "isci.h" -#include "scic_remote_device.h" #include "scic_io_request.h" #include "scic_task_request.h" #include "scic_port.h" diff --git a/drivers/scsi/isci/sata.c b/drivers/scsi/isci/sata.c index c941d9090b8..53ce0c281be 100644 --- a/drivers/scsi/isci/sata.c +++ b/drivers/scsi/isci/sata.c @@ -54,8 +54,7 @@ */ #include "isci.h" -#include "scic_remote_device.h" -#include "scic_sds_remote_device.h" +#include "remote_device.h" #include "scic_io_request.h" #include "scic_task_request.h" #include "task.h" diff --git a/drivers/scsi/isci/scu_remote_node_context.h b/drivers/scsi/isci/scu_remote_node_context.h new file mode 100644 index 00000000000..33745adc826 --- /dev/null +++ b/drivers/scsi/isci/scu_remote_node_context.h @@ -0,0 +1,229 @@ +/* + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * BSD LICENSE + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __SCU_REMOTE_NODE_CONTEXT_HEADER__ +#define __SCU_REMOTE_NODE_CONTEXT_HEADER__ + +/** + * This file contains the structures and constatns used by the SCU hardware to + * describe a remote node context. + * + * + */ + +/** + * struct ssp_remote_node_context - This structure contains the SCU hardware + * definition for an SSP remote node. + * + * + */ +struct ssp_remote_node_context { + /* WORD 0 */ + + /** + * This field is the remote node index assigned for this remote node. All + * remote nodes must have a unique remote node index. The value of the remote + * node index can not exceed the maximum number of remote nodes reported in + * the SCU device context capacity register. + */ + u32 remote_node_index:12; + u32 reserved0_1:4; + + /** + * This field tells the SCU hardware how many simultaneous connections that + * this remote node will support. + */ + u32 remote_node_port_width:4; + + /** + * This field tells the SCU hardware which logical port to associate with this + * remote node. + */ + u32 logical_port_index:3; + u32 reserved0_2:5; + + /** + * This field will enable the I_T nexus loss timer for this remote node. + */ + u32 nexus_loss_timer_enable:1; + + /** + * This field is the for driver debug only and is not used. + */ + u32 check_bit:1; + + /** + * This field must be set to true when the hardware DMAs the remote node + * context to the hardware SRAM. When the remote node is being invalidated + * this field must be set to false. + */ + u32 is_valid:1; + + /** + * This field must be set to true. + */ + u32 is_remote_node_context:1; + + /* WORD 1 - 2 */ + + /** + * This is the low word of the remote device SAS Address + */ + u32 remote_sas_address_lo; + + /** + * This field is the high word of the remote device SAS Address + */ + u32 remote_sas_address_hi; + + /* WORD 3 */ + /** + * This field reprensets the function number assigned to this remote device. + * This value must match the virtual function number that is being used to + * communicate to the device. + */ + u32 function_number:8; + u32 reserved3_1:8; + + /** + * This field provides the driver a way to cheat on the arbitration wait time + * for this remote node. + */ + u32 arbitration_wait_time:16; + + /* WORD 4 */ + /** + * This field tells the SCU hardware how long this device may occupy the + * connection before it must be closed. + */ + u32 connection_occupancy_timeout:16; + + /** + * This field tells the SCU hardware how long to maintain a connection when + * there are no frames being transmitted on the link. + */ + u32 connection_inactivity_timeout:16; + + /* WORD 5 */ + /** + * This field allows the driver to cheat on the arbitration wait time for this + * remote node. + */ + u32 initial_arbitration_wait_time:16; + + /** + * This field is tells the hardware what to program for the connection rate in + * the open address frame. See the SAS spec for valid values. + */ + u32 oaf_connection_rate:4; + + /** + * This field tells the SCU hardware what to program for the features in the + * open address frame. See the SAS spec for valid values. + */ + u32 oaf_features:4; + + /** + * This field tells the SCU hardware what to use for the source zone group in + * the open address frame. See the SAS spec for more details on zoning. + */ + u32 oaf_source_zone_group:8; + + /* WORD 6 */ + /** + * This field tells the SCU hardware what to use as the more capibilities in + * the open address frame. See the SAS Spec for details. + */ + u32 oaf_more_compatibility_features; + + /* WORD 7 */ + u32 reserved7; + +}; + +/** + * struct stp_remote_node_context - This structure contains the SCU hardware + * definition for a STP remote node. + * + * STP Targets are not yet supported so this definition is a placeholder until + * we do support them. + */ +struct stp_remote_node_context { + /** + * Placeholder data for the STP remote node. + */ + u32 data[8]; + +}; + +/** + * This union combines the SAS and SATA remote node definitions. + * + * union scu_remote_node_context + */ +union scu_remote_node_context { + /** + * SSP Remote Node + */ + struct ssp_remote_node_context ssp; + + /** + * STP Remote Node + */ + struct stp_remote_node_context stp; + +}; + +#endif /* __SCU_REMOTE_NODE_CONTEXT_HEADER__ */ diff --git a/drivers/scsi/isci/smp_remote_device.c b/drivers/scsi/isci/smp_remote_device.c new file mode 100644 index 00000000000..718ddaf4934 --- /dev/null +++ b/drivers/scsi/isci/smp_remote_device.c @@ -0,0 +1,314 @@ +/* + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * BSD LICENSE + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "scic_sds_controller.h" +#include "scic_sds_port.h" +#include "remote_device.h" +#include "scic_sds_request.h" +#include "sci_environment.h" +#include "sci_util.h" +#include "scu_event_codes.h" +#include "scu_task_context.h" + +/* + * ***************************************************************************** + * * SMP REMOTE DEVICE READY IDLE SUBSTATE HANDLERS + * ***************************************************************************** */ + +/** + * + * @[in]: device The device the io is sent to. + * @[in]: request The io to start. + * + * This method will handle the start io operation for a SMP device that is in + * the idle state. enum sci_status + */ +static enum sci_status scic_sds_smp_remote_device_ready_idle_substate_start_io_handler( + struct scic_sds_remote_device *device, + struct scic_sds_request *request) +{ + enum sci_status status; + + /* Will the port allow the io request to start? */ + status = device->owning_port->state_handlers->start_io_handler( + device->owning_port, device, request); + + if (status == SCI_SUCCESS) { + status = scic_sds_remote_node_context_start_io(&device->rnc, request); + + if (status == SCI_SUCCESS) + status = scic_sds_request_start(request); + + if (status == SCI_SUCCESS) { + device->working_request = request; + + sci_base_state_machine_change_state( + &device->ready_substate_machine, + SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD + ); + } + + scic_sds_remote_device_start_request(device, request, status); + } + + return status; +} + + +/* + * ****************************************************************************** + * * SMP REMOTE DEVICE READY SUBSTATE CMD HANDLERS + * ****************************************************************************** */ +/** + * + * @device: This is the device object that is receiving the IO. + * @request: The io to start. + * + * This device is already handling a command it can not accept new commands + * until this one is complete. enum sci_status + */ +static enum sci_status scic_sds_smp_remote_device_ready_cmd_substate_start_io_handler( + struct scic_sds_remote_device *device, + struct scic_sds_request *request) +{ + return SCI_FAILURE_INVALID_STATE; +} + + +/** + * this is the complete_io_handler for smp device at ready cmd substate. + * @device: This is the device object that is receiving the IO. + * @request: The io to start. + * + * enum sci_status + */ +static enum sci_status +scic_sds_smp_remote_device_ready_cmd_substate_complete_io_handler( + struct scic_sds_remote_device *device, + struct scic_sds_request *request) +{ + enum sci_status status; + struct scic_sds_request *sci_req; + + sci_req = (struct scic_sds_request *)request; + + status = scic_sds_io_request_complete(sci_req); + + if (status == SCI_SUCCESS) { + status = scic_sds_port_complete_io( + device->owning_port, device, sci_req); + + if (status == SCI_SUCCESS) { + scic_sds_remote_device_decrement_request_count(device); + sci_base_state_machine_change_state( + &device->ready_substate_machine, + SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE + ); + } else + dev_err(scirdev_to_dev(device), + "%s: SCIC SDS Remote Device 0x%p io request " + "0x%p could not be completd on the port 0x%p " + "failed with status %d.\n", + __func__, + device, + sci_req, + device->owning_port, + status); + } + + return status; +} + +/** + * This is frame handler for smp device ready cmd substate. + * @sci_dev: This is the device object that is receiving the frame. + * @frame_index: The index for the frame received. + * + * enum sci_status + */ +static enum sci_status scic_sds_smp_remote_device_ready_cmd_substate_frame_handler( + struct scic_sds_remote_device *sci_dev, + u32 frame_index) +{ + enum sci_status status; + + /* + * / The device does not process any UF received from the hardware while + * / in this state. All unsolicited frames are forwarded to the io request + * / object. */ + status = scic_sds_io_request_frame_handler( + sci_dev->working_request, + frame_index + ); + + return status; +} + +/* --------------------------------------------------------------------------- */ + +static const struct scic_sds_remote_device_state_handler scic_sds_smp_remote_device_ready_substate_handler_table[] = { + [SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE] = { + .start_handler = scic_sds_remote_device_default_start_handler, + .stop_handler = scic_sds_remote_device_ready_state_stop_handler, + .fail_handler = scic_sds_remote_device_default_fail_handler, + .destruct_handler = scic_sds_remote_device_default_destruct_handler, + .reset_handler = scic_sds_remote_device_default_reset_handler, + .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, + .start_io_handler = scic_sds_smp_remote_device_ready_idle_substate_start_io_handler, + .complete_io_handler = scic_sds_remote_device_default_complete_request_handler, + .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, + .start_task_handler = scic_sds_remote_device_default_start_request_handler, + .complete_task_handler = scic_sds_remote_device_default_complete_request_handler, + .suspend_handler = scic_sds_remote_device_default_suspend_handler, + .resume_handler = scic_sds_remote_device_default_resume_handler, + .event_handler = scic_sds_remote_device_general_event_handler, + .frame_handler = scic_sds_remote_device_default_frame_handler + }, + [SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD] = { + .start_handler = scic_sds_remote_device_default_start_handler, + .stop_handler = scic_sds_remote_device_ready_state_stop_handler, + .fail_handler = scic_sds_remote_device_default_fail_handler, + .destruct_handler = scic_sds_remote_device_default_destruct_handler, + .reset_handler = scic_sds_remote_device_default_reset_handler, + .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, + .start_io_handler = scic_sds_smp_remote_device_ready_cmd_substate_start_io_handler, + .complete_io_handler = scic_sds_smp_remote_device_ready_cmd_substate_complete_io_handler, + .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, + .start_task_handler = scic_sds_remote_device_default_start_request_handler, + .complete_task_handler = scic_sds_remote_device_default_complete_request_handler, + .suspend_handler = scic_sds_remote_device_default_suspend_handler, + .resume_handler = scic_sds_remote_device_default_resume_handler, + .event_handler = scic_sds_remote_device_general_event_handler, + .frame_handler = scic_sds_smp_remote_device_ready_cmd_substate_frame_handler + } +}; + +/** + * + * @object: This is the struct sci_base_object which is cast into a + * struct scic_sds_remote_device. + * + * This is the SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE enter method. + * This function sets the ready cmd substate handlers and reports the device as + * ready. none + */ +static void scic_sds_smp_remote_device_ready_idle_substate_enter(struct sci_base_object *object) +{ + struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev), + parent); + struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); + struct isci_host *ihost = sci_object_get_association(scic); + struct isci_remote_device *idev = sci_object_get_association(sci_dev); + + SET_STATE_HANDLER(sci_dev, + scic_sds_smp_remote_device_ready_substate_handler_table, + SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE); + + isci_remote_device_ready(ihost, idev); +} + +/** + * + * @object: This is the struct sci_base_object which is cast into a + * struct scic_sds_remote_device. + * + * This is the SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD enter method. This + * function sets the remote device objects ready cmd substate handlers, and + * notify core user that the device is not ready. none + */ +static void scic_sds_smp_remote_device_ready_cmd_substate_enter( + struct sci_base_object *object) +{ + struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev), + parent); + struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); + struct isci_host *ihost = sci_object_get_association(scic); + struct isci_remote_device *idev = sci_object_get_association(sci_dev); + + BUG_ON(sci_dev->working_request == NULL); + + SET_STATE_HANDLER(sci_dev, + scic_sds_smp_remote_device_ready_substate_handler_table, + SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD); + + isci_remote_device_not_ready(ihost, idev, + SCIC_REMOTE_DEVICE_NOT_READY_SMP_REQUEST_STARTED); +} + +/** + * + * @object: This is the struct sci_base_object which is cast into a + * struct scic_sds_remote_device. + * + * This is the SCIC_SDS_SSP_REMOTE_DEVICE_READY_SUBSTATE_CMD exit method. none + */ +static void scic_sds_smp_remote_device_ready_cmd_substate_exit(struct sci_base_object *object) +{ + struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev), + parent); + sci_dev->working_request = NULL; +} + +/* --------------------------------------------------------------------------- */ + +const struct sci_base_state scic_sds_smp_remote_device_ready_substate_table[] = { + [SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE] = { + .enter_state = scic_sds_smp_remote_device_ready_idle_substate_enter, + }, + [SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD] = { + .enter_state = scic_sds_smp_remote_device_ready_cmd_substate_enter, + .exit_state = scic_sds_smp_remote_device_ready_cmd_substate_exit, + }, +}; diff --git a/drivers/scsi/isci/stp_remote_device.c b/drivers/scsi/isci/stp_remote_device.c new file mode 100644 index 00000000000..b81f21f47d2 --- /dev/null +++ b/drivers/scsi/isci/stp_remote_device.c @@ -0,0 +1,817 @@ +/* + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * BSD LICENSE + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "intel_ata.h" +#include "intel_sata.h" +#include "intel_sat.h" +#include "sci_base_state.h" +#include "scic_sds_controller.h" +#include "scic_sds_port.h" +#include "remote_device.h" +#include "scic_sds_request.h" +#include "sci_environment.h" +#include "sci_util.h" +#include "scu_event_codes.h" + +/** + * This method will perform the STP request completion processing common to IO + * requests and task requests of all types + * @device: This parameter specifies the device for which the request is being + * completed. + * @request: This parameter specifies the request being completed. + * + * This method returns an indication as to whether the request processing + * completed successfully. + */ +static enum sci_status scic_sds_stp_remote_device_complete_request( + struct scic_sds_remote_device *device, + struct scic_sds_request *request) +{ + enum sci_status status; + + status = scic_sds_io_request_complete(request); + + if (status == SCI_SUCCESS) { + status = scic_sds_port_complete_io( + device->owning_port, device, request); + + if (status == SCI_SUCCESS) { + scic_sds_remote_device_decrement_request_count(device); + if (request->sci_status == SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED) { + /* + * This request causes hardware error, device needs to be Lun Reset. + * So here we force the state machine to IDLE state so the rest IOs + * can reach RNC state handler, these IOs will be completed by RNC with + * status of "DEVICE_RESET_REQUIRED", instead of "INVALID STATE". */ + sci_base_state_machine_change_state( + &device->ready_substate_machine, + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET + ); + } else if (scic_sds_remote_device_get_request_count(device) == 0) { + sci_base_state_machine_change_state( + &device->ready_substate_machine, + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE + ); + } + } + } + + if (status != SCI_SUCCESS) + dev_err(scirdev_to_dev(device), + "%s: Port:0x%p Device:0x%p Request:0x%p Status:0x%x " + "could not complete\n", + __func__, + device->owning_port, + device, + request, + status); + + return status; +} + +/* + * ***************************************************************************** + * * STP REMOTE DEVICE READY COMMON SUBSTATE HANDLERS + * ***************************************************************************** */ + +/** + * This is the READY NCQ substate handler to start task management request. In + * this routine, we suspend and resume the RNC. + * @device: The target device a task management request towards to. + * @request: The task request. + * + * enum sci_status Always return SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS status to + * let controller_start_task_handler know that the controller can't post TC for + * task request yet, instead, when RNC gets resumed, a controller_continue_task + * callback will be called. + */ +static enum sci_status scic_sds_stp_remote_device_ready_substate_start_request_handler( + struct scic_sds_remote_device *device, + struct scic_sds_request *request) +{ + enum sci_status status; + + /* Will the port allow the io request to start? */ + status = device->owning_port->state_handlers->start_io_handler( + device->owning_port, device, request); + if (status != SCI_SUCCESS) + return status; + + status = scic_sds_remote_node_context_start_task(&device->rnc, request); + if (status != SCI_SUCCESS) + goto out; + + status = request->state_handlers->start_handler(request); + if (status != SCI_SUCCESS) + goto out; + + /* + * Note: If the remote device state is not IDLE this will replace + * the request that probably resulted in the task management request. + */ + device->working_request = request; + sci_base_state_machine_change_state(&device->ready_substate_machine, + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD); + + /* + * The remote node context must cleanup the TCi to NCQ mapping table. + * The only way to do this correctly is to either write to the TLCR + * register or to invalidate and repost the RNC. In either case the + * remote node context state machine will take the correct action when + * the remote node context is suspended and later resumed. + */ + scic_sds_remote_node_context_suspend(&device->rnc, + SCI_SOFTWARE_SUSPENSION, NULL, NULL); + scic_sds_remote_node_context_resume(&device->rnc, + scic_sds_remote_device_continue_request, + device); + +out: + scic_sds_remote_device_start_request(device, request, status); + /* + * We need to let the controller start request handler know that it can't + * post TC yet. We will provide a callback function to post TC when RNC gets + * resumed. + */ + return SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS; +} + +/* + * ***************************************************************************** + * * STP REMOTE DEVICE READY IDLE SUBSTATE HANDLERS + * ***************************************************************************** */ + +/** + * This method will handle the start io operation for a sata device that is in + * the command idle state. - Evalute the type of IO request to be started - + * If its an NCQ request change to NCQ substate - If its any other command + * change to the CMD substate + * @device: + * @request: + * + * If this is a softreset we may want to have a different substate. + * enum sci_status + */ +static enum sci_status scic_sds_stp_remote_device_ready_idle_substate_start_io_handler( + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *request) +{ + enum sci_status status; + struct isci_request *isci_request = + (struct isci_request *)sci_object_get_association(request); + + + /* Will the port allow the io request to start? */ + status = sci_dev->owning_port->state_handlers->start_io_handler( + sci_dev->owning_port, sci_dev, request); + if (status != SCI_SUCCESS) + return status; + + status = scic_sds_remote_node_context_start_io(&sci_dev->rnc, request); + if (status != SCI_SUCCESS) + goto out; + + status = request->state_handlers->start_handler(request); + if (status != SCI_SUCCESS) + goto out; + + if (isci_sata_get_sat_protocol(isci_request) == SAT_PROTOCOL_FPDMA) { + sci_base_state_machine_change_state(&sci_dev->ready_substate_machine, + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ); + } else { + sci_dev->working_request = request; + sci_base_state_machine_change_state(&sci_dev->ready_substate_machine, + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD); + } +out: + scic_sds_remote_device_start_request(sci_dev, request, status); + return status; +} + + +/** + * + * @[in]: device The device received event. + * @[in]: event_code The event code. + * + * This method will handle the event for a sata device that is in the idle + * state. We pick up suspension events to handle specifically to this state. We + * resume the RNC right away. enum sci_status + */ +static enum sci_status scic_sds_stp_remote_device_ready_idle_substate_event_handler( + struct scic_sds_remote_device *sci_dev, + u32 event_code) +{ + enum sci_status status; + + status = scic_sds_remote_device_general_event_handler(sci_dev, event_code); + + if (status == SCI_SUCCESS) { + if (scu_get_event_type(event_code) == SCU_EVENT_TYPE_RNC_SUSPEND_TX + || scu_get_event_type(event_code) == SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX) { + status = scic_sds_remote_node_context_resume( + &sci_dev->rnc, NULL, NULL); + } + } + + return status; +} + + +/* + * ***************************************************************************** + * * STP REMOTE DEVICE READY NCQ SUBSTATE HANDLERS + * ***************************************************************************** */ + +static enum sci_status scic_sds_stp_remote_device_ready_ncq_substate_start_io_handler( + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *request) +{ + enum sci_status status; + struct isci_request *isci_request = + (struct isci_request *)sci_object_get_association(request); + + if (isci_sata_get_sat_protocol(isci_request) == SAT_PROTOCOL_FPDMA) { + status = sci_dev->owning_port->state_handlers->start_io_handler( + sci_dev->owning_port, + sci_dev, + request); + if (status != SCI_SUCCESS) + return status; + + status = scic_sds_remote_node_context_start_io(&sci_dev->rnc, request); + if (status != SCI_SUCCESS) + return status; + + status = request->state_handlers->start_handler(request); + + scic_sds_remote_device_start_request(sci_dev, request, status); + } else + status = SCI_FAILURE_INVALID_STATE; + + return status; +} + + +/** + * This method will handle events received while the STP device is in the ready + * command substate. + * @sci_dev: This is the device object that is receiving the event. + * @event_code: The event code to process. + * + * enum sci_status + */ + +static enum sci_status scic_sds_stp_remote_device_ready_ncq_substate_frame_handler( + struct scic_sds_remote_device *sci_dev, + u32 frame_index) +{ + enum sci_status status; + struct sata_fis_header *frame_header; + + status = scic_sds_unsolicited_frame_control_get_header( + &(scic_sds_remote_device_get_controller(sci_dev)->uf_control), + frame_index, + (void **)&frame_header + ); + + if (status == SCI_SUCCESS) { + if (frame_header->fis_type == SATA_FIS_TYPE_SETDEVBITS && + (frame_header->status & ATA_STATUS_REG_ERROR_BIT)) { + sci_dev->not_ready_reason = + SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED; + + /* + * / @todo Check sactive and complete associated IO + * if any. + */ + + sci_base_state_machine_change_state( + &sci_dev->ready_substate_machine, + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR + ); + } else if (frame_header->fis_type == SATA_FIS_TYPE_REGD2H && + (frame_header->status & ATA_STATUS_REG_ERROR_BIT)) { + + /* + * Some devices return D2H FIS when an NCQ error is detected. + * Treat this like an SDB error FIS ready reason. + */ + sci_dev->not_ready_reason = + SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED; + + sci_base_state_machine_change_state( + &sci_dev->ready_substate_machine, + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR + ); + } else { + status = SCI_FAILURE; + } + + scic_sds_controller_release_frame( + scic_sds_remote_device_get_controller(sci_dev), frame_index + ); + } + + return status; +} + +/* + * ***************************************************************************** + * * STP REMOTE DEVICE READY CMD SUBSTATE HANDLERS + * ***************************************************************************** */ + +/** + * This device is already handling a command it can not accept new commands + * until this one is complete. + * @device: + * @request: + * + * enum sci_status + */ +static enum sci_status scic_sds_stp_remote_device_ready_cmd_substate_start_io_handler( + struct scic_sds_remote_device *device, + struct scic_sds_request *request) +{ + return SCI_FAILURE_INVALID_STATE; +} + +static enum sci_status scic_sds_stp_remote_device_ready_cmd_substate_suspend_handler( + struct scic_sds_remote_device *sci_dev, + u32 suspend_type) +{ + enum sci_status status; + + status = scic_sds_remote_node_context_suspend(&sci_dev->rnc, + suspend_type, NULL, NULL); + + return status; +} + +static enum sci_status scic_sds_stp_remote_device_ready_cmd_substate_frame_handler( + struct scic_sds_remote_device *sci_dev, + u32 frame_index) +{ + enum sci_status status; + + /* + * / The device doe not process any UF received from the hardware while + * / in this state. All unsolicited frames are forwarded to the io request + * / object. */ + status = scic_sds_io_request_frame_handler( + sci_dev->working_request, + frame_index + ); + + return status; +} + + +/* + * ***************************************************************************** + * * STP REMOTE DEVICE READY NCQ SUBSTATE HANDLERS + * ***************************************************************************** */ + +/* + * ***************************************************************************** + * * STP REMOTE DEVICE READY NCQ ERROR SUBSTATE HANDLERS + * ***************************************************************************** */ + +/* + * ***************************************************************************** + * * STP REMOTE DEVICE READY AWAIT RESET SUBSTATE HANDLERS + * ***************************************************************************** */ +static enum sci_status scic_sds_stp_remote_device_ready_await_reset_substate_start_io_handler( + struct scic_sds_remote_device *device, + struct scic_sds_request *request) +{ + return SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED; +} + + + +/** + * This method will perform the STP request (both io or task) completion + * processing for await reset state. + * @device: This parameter specifies the device for which the request is being + * completed. + * @request: This parameter specifies the request being completed. + * + * This method returns an indication as to whether the request processing + * completed successfully. + */ +static enum sci_status scic_sds_stp_remote_device_ready_await_reset_substate_complete_request_handler( + struct scic_sds_remote_device *device, + struct scic_sds_request *request) +{ + struct scic_sds_request *sci_req = (struct scic_sds_request *)request; + enum sci_status status; + + status = scic_sds_io_request_complete(sci_req); + + if (status == SCI_SUCCESS) { + status = scic_sds_port_complete_io( + device->owning_port, device, sci_req + ); + + if (status == SCI_SUCCESS) + scic_sds_remote_device_decrement_request_count(device); + } + + if (status != SCI_SUCCESS) + dev_err(scirdev_to_dev(device), + "%s: Port:0x%p Device:0x%p Request:0x%p Status:0x%x " + "could not complete\n", + __func__, + device->owning_port, + device, + sci_req, + status); + + return status; +} + +#if !defined(DISABLE_ATAPI) +/* + * ***************************************************************************** + * * STP REMOTE DEVICE READY ATAPI ERROR SUBSTATE HANDLERS + * ***************************************************************************** */ + +/** + * + * @[in]: device The device received event. + * @[in]: event_code The event code. + * + * This method will handle the event for a ATAPI device that is in the ATAPI + * ERROR state. We pick up suspension events to handle specifically to this + * state. We resume the RNC right away. We then complete the outstanding IO to + * this device. enum sci_status + */ +enum sci_status scic_sds_stp_remote_device_ready_atapi_error_substate_event_handler( + struct scic_sds_remote_device *sci_dev, + u32 event_code) +{ + enum sci_status status; + + status = scic_sds_remote_device_general_event_handler(sci_dev, event_code); + + if (status == SCI_SUCCESS) { + if (scu_get_event_type(event_code) == SCU_EVENT_TYPE_RNC_SUSPEND_TX + || scu_get_event_type(event_code) == SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX) { + status = scic_sds_remote_node_context_resume( + sci_dev->rnc, + sci_dev->working_request->state_handlers->parent.complete_handler, + (void *)sci_dev->working_request + ); + } + } + + return status; +} +#endif /* !defined(DISABLE_ATAPI) */ + +/* --------------------------------------------------------------------------- */ + +static const struct scic_sds_remote_device_state_handler scic_sds_stp_remote_device_ready_substate_handler_table[] = { + [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE] = { + .start_handler = scic_sds_remote_device_default_start_handler, + .stop_handler = scic_sds_remote_device_ready_state_stop_handler, + .fail_handler = scic_sds_remote_device_default_fail_handler, + .destruct_handler = scic_sds_remote_device_default_destruct_handler, + .reset_handler = scic_sds_remote_device_ready_state_reset_handler, + .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, + .start_io_handler = scic_sds_stp_remote_device_ready_idle_substate_start_io_handler, + .complete_io_handler = scic_sds_remote_device_default_complete_request_handler, + .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, + .start_task_handler = scic_sds_stp_remote_device_ready_substate_start_request_handler, + .complete_task_handler = scic_sds_remote_device_default_complete_request_handler, + .suspend_handler = scic_sds_remote_device_default_suspend_handler, + .resume_handler = scic_sds_remote_device_default_resume_handler, + .event_handler = scic_sds_stp_remote_device_ready_idle_substate_event_handler, + .frame_handler = scic_sds_remote_device_default_frame_handler + }, + [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD] = { + .start_handler = scic_sds_remote_device_default_start_handler, + .stop_handler = scic_sds_remote_device_ready_state_stop_handler, + .fail_handler = scic_sds_remote_device_default_fail_handler, + .destruct_handler = scic_sds_remote_device_default_destruct_handler, + .reset_handler = scic_sds_remote_device_ready_state_reset_handler, + .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, + .start_io_handler = scic_sds_stp_remote_device_ready_cmd_substate_start_io_handler, + .complete_io_handler = scic_sds_stp_remote_device_complete_request, + .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, + .start_task_handler = scic_sds_stp_remote_device_ready_substate_start_request_handler, + .complete_task_handler = scic_sds_stp_remote_device_complete_request, + .suspend_handler = scic_sds_stp_remote_device_ready_cmd_substate_suspend_handler, + .resume_handler = scic_sds_remote_device_default_resume_handler, + .event_handler = scic_sds_remote_device_general_event_handler, + .frame_handler = scic_sds_stp_remote_device_ready_cmd_substate_frame_handler + }, + [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ] = { + .start_handler = scic_sds_remote_device_default_start_handler, + .stop_handler = scic_sds_remote_device_ready_state_stop_handler, + .fail_handler = scic_sds_remote_device_default_fail_handler, + .destruct_handler = scic_sds_remote_device_default_destruct_handler, + .reset_handler = scic_sds_remote_device_ready_state_reset_handler, + .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, + .start_io_handler = scic_sds_stp_remote_device_ready_ncq_substate_start_io_handler, + .complete_io_handler = scic_sds_stp_remote_device_complete_request, + .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, + .start_task_handler = scic_sds_stp_remote_device_ready_substate_start_request_handler, + .complete_task_handler = scic_sds_stp_remote_device_complete_request, + .suspend_handler = scic_sds_remote_device_default_suspend_handler, + .resume_handler = scic_sds_remote_device_default_resume_handler, + .event_handler = scic_sds_remote_device_general_event_handler, + .frame_handler = scic_sds_stp_remote_device_ready_ncq_substate_frame_handler + }, + [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR] = { + .start_handler = scic_sds_remote_device_default_start_handler, + .stop_handler = scic_sds_remote_device_ready_state_stop_handler, + .fail_handler = scic_sds_remote_device_default_fail_handler, + .destruct_handler = scic_sds_remote_device_default_destruct_handler, + .reset_handler = scic_sds_remote_device_ready_state_reset_handler, + .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, + .start_io_handler = scic_sds_remote_device_default_start_request_handler, + .complete_io_handler = scic_sds_stp_remote_device_complete_request, + .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, + .start_task_handler = scic_sds_stp_remote_device_ready_substate_start_request_handler, + .complete_task_handler = scic_sds_stp_remote_device_complete_request, + .suspend_handler = scic_sds_remote_device_default_suspend_handler, + .resume_handler = scic_sds_remote_device_default_resume_handler, + .event_handler = scic_sds_remote_device_general_event_handler, + .frame_handler = scic_sds_remote_device_general_frame_handler + }, +#if !defined(DISABLE_ATAPI) + [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_ATAPI_ERROR] = { + .start_handler = scic_sds_remote_device_default_start_handler, + .stop_handler = scic_sds_remote_device_ready_state_stop_handler, + .fail_handler = scic_sds_remote_device_default_fail_handler, + .destruct_handler = scic_sds_remote_device_default_destruct_handler, + .reset_handler = scic_sds_remote_device_ready_state_reset_handler, + .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, + .start_io_handler = scic_sds_remote_device_default_start_request_handler, + .complete_io_handler = scic_sds_stp_remote_device_complete_request, + .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, + .start_task_handler = scic_sds_stp_remote_device_ready_substate_start_request_handler, + .complete_task_handler = scic_sds_stp_remote_device_complete_request, + .suspend_handler = scic_sds_remote_device_default_suspend_handler, + .resume_handler = scic_sds_remote_device_default_resume_handler, + .event_handler = scic_sds_stp_remote_device_ready_atapi_error_substate_event_handler, + .frame_handler = scic_sds_remote_device_general_frame_handler + }, +#endif + [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET] = { + .start_handler = scic_sds_remote_device_default_start_handler, + .stop_handler = scic_sds_remote_device_ready_state_stop_handler, + .fail_handler = scic_sds_remote_device_default_fail_handler, + .destruct_handler = scic_sds_remote_device_default_destruct_handler, + .reset_handler = scic_sds_remote_device_ready_state_reset_handler, + .reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler, + .start_io_handler = scic_sds_stp_remote_device_ready_await_reset_substate_start_io_handler, + .complete_io_handler = scic_sds_stp_remote_device_ready_await_reset_substate_complete_request_handler, + .continue_io_handler = scic_sds_remote_device_default_continue_request_handler, + .start_task_handler = scic_sds_stp_remote_device_ready_substate_start_request_handler, + .complete_task_handler = scic_sds_stp_remote_device_complete_request, + .suspend_handler = scic_sds_remote_device_default_suspend_handler, + .resume_handler = scic_sds_remote_device_default_resume_handler, + .event_handler = scic_sds_remote_device_general_event_handler, + .frame_handler = scic_sds_remote_device_general_frame_handler + } +}; + +/* + * ***************************************************************************** + * * STP REMOTE DEVICE READY SUBSTATE PRIVATE METHODS + * ***************************************************************************** */ + +static void +scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handler(void *user_cookie) +{ + struct scic_sds_remote_device *sci_dev = user_cookie; + struct isci_remote_device *idev = sci_object_get_association(sci_dev); + struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); + struct isci_host *ihost = sci_object_get_association(scic); + + /* + * For NCQ operation we do not issue a + * scic_cb_remote_device_not_ready(). As a result, avoid sending + * the ready notification. + */ + if (sci_dev->ready_substate_machine.previous_state_id != + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ) + isci_remote_device_ready(ihost, idev); +} + +/* + * ***************************************************************************** + * * STP REMOTE DEVICE READY IDLE SUBSTATE + * ***************************************************************************** */ + +/** + * + * @device: This is the SCI base object which is cast into a + * struct scic_sds_remote_device object. + * + */ +static void scic_sds_stp_remote_device_ready_idle_substate_enter( + struct sci_base_object *device) +{ + struct scic_sds_remote_device *sci_dev; + + sci_dev = (struct scic_sds_remote_device *)device; + + SET_STATE_HANDLER( + sci_dev, + scic_sds_stp_remote_device_ready_substate_handler_table, + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE + ); + + sci_dev->working_request = NULL; + + if (scic_sds_remote_node_context_is_ready(&sci_dev->rnc)) { + /* + * Since the RNC is ready, it's alright to finish completion + * processing (e.g. signal the remote device is ready). */ + scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handler( + sci_dev + ); + } else { + scic_sds_remote_node_context_resume( + &sci_dev->rnc, + scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handler, + sci_dev); + } +} + +static void scic_sds_stp_remote_device_ready_cmd_substate_enter(struct sci_base_object *object) +{ + struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev), + parent); + struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); + struct isci_host *ihost = sci_object_get_association(scic); + struct isci_remote_device *idev = sci_object_get_association(sci_dev); + + BUG_ON(sci_dev->working_request == NULL); + + SET_STATE_HANDLER(sci_dev, + scic_sds_stp_remote_device_ready_substate_handler_table, + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD); + + isci_remote_device_not_ready(ihost, idev, + SCIC_REMOTE_DEVICE_NOT_READY_SATA_REQUEST_STARTED); +} + +static void scic_sds_stp_remote_device_ready_ncq_substate_enter(struct sci_base_object *object) +{ + struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev), + parent); + SET_STATE_HANDLER(sci_dev, + scic_sds_stp_remote_device_ready_substate_handler_table, + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ); +} + +static void scic_sds_stp_remote_device_ready_ncq_error_substate_enter(struct sci_base_object *object) +{ + struct scic_sds_remote_device *sci_dev = container_of(object, typeof(*sci_dev), + parent); + struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); + struct isci_host *ihost = sci_object_get_association(scic); + struct isci_remote_device *idev = sci_object_get_association(sci_dev); + + SET_STATE_HANDLER(sci_dev, + scic_sds_stp_remote_device_ready_substate_handler_table, + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR); + + if (sci_dev->not_ready_reason == + SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED) + isci_remote_device_not_ready(ihost, idev, sci_dev->not_ready_reason); +} + +/* + * ***************************************************************************** + * * STP REMOTE DEVICE READY AWAIT RESET SUBSTATE + * ***************************************************************************** */ + +/** + * The enter routine to READY AWAIT RESET substate. + * @device: This is the SCI base object which is cast into a + * struct scic_sds_remote_device object. + * + */ +static void scic_sds_stp_remote_device_ready_await_reset_substate_enter( + struct sci_base_object *device) +{ + struct scic_sds_remote_device *sci_dev; + + sci_dev = (struct scic_sds_remote_device *)device; + + SET_STATE_HANDLER( + sci_dev, + scic_sds_stp_remote_device_ready_substate_handler_table, + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET + ); +} + +#if !defined(DISABLE_ATAPI) +/* + * ***************************************************************************** + * * STP REMOTE DEVICE READY ATAPI ERROR SUBSTATE + * ***************************************************************************** */ + +/** + * The enter routine to READY ATAPI ERROR substate. + * @device: This is the SCI base object which is cast into a + * struct scic_sds_remote_device object. + * + */ +void scic_sds_stp_remote_device_ready_atapi_error_substate_enter( + struct sci_base_object *device) +{ + struct scic_sds_remote_device *sci_dev; + + sci_dev = (struct scic_sds_remote_device *)device; + + SET_STATE_HANDLER( + sci_dev, + scic_sds_stp_remote_device_ready_substate_handler_table, + SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_ATAPI_ERROR + ); +} +#endif /* !defined(DISABLE_ATAPI) */ + +/* --------------------------------------------------------------------------- */ + +const struct sci_base_state scic_sds_stp_remote_device_ready_substate_table[] = { + [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE] = { + .enter_state = scic_sds_stp_remote_device_ready_idle_substate_enter, + }, + [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD] = { + .enter_state = scic_sds_stp_remote_device_ready_cmd_substate_enter, + }, + [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ] = { + .enter_state = scic_sds_stp_remote_device_ready_ncq_substate_enter, + }, + [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR] = { + .enter_state = scic_sds_stp_remote_device_ready_ncq_error_substate_enter, + }, +#if !defined(DISABLE_ATAPI) + [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_ATAPI_ERROR] = { + .enter_state = scic_sds_stp_remote_device_ready_atapi_error_substate_enter, + }, +#endif + [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET] = { + .enter_state = scic_sds_stp_remote_device_ready_await_reset_substate_enter, + }, +}; diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index f54f523b8d4..e011d668949 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -56,10 +56,9 @@ #include #include #include "scic_task_request.h" -#include "scic_remote_device.h" #include "scic_io_request.h" -#include "scic_sds_remote_device.h" -#include "scic_sds_remote_node_context.h" +#include "remote_device.h" +#include "remote_node_context.h" #include "isci.h" #include "request.h" #include "sata.h" -- cgit v1.2.3-70-g09d2 From cc3dbd0a9178865d4444f8e28b51715808e9ac85 Mon Sep 17 00:00:00 2001 From: Artur Wojcik Date: Wed, 4 May 2011 07:58:16 +0000 Subject: isci: unify isci_host data structures Make it explicit that isci_host and scic_sds_controller are one in the same object. Signed-off-by: Artur Wojcik [removed ->ihost back pointer] Signed-off-by: Dan Williams --- drivers/scsi/isci/core/scic_sds_controller.c | 22 +++------- drivers/scsi/isci/core/scic_sds_controller.h | 6 --- drivers/scsi/isci/core/scic_sds_phy.c | 6 +-- drivers/scsi/isci/core/scic_sds_port.c | 34 ++++++--------- .../isci/core/scic_sds_port_configuration_agent.c | 9 +--- drivers/scsi/isci/core/scic_sds_request.c | 2 +- drivers/scsi/isci/host.c | 51 ++++++++-------------- drivers/scsi/isci/host.h | 12 ++++- drivers/scsi/isci/init.c | 4 +- drivers/scsi/isci/phy.c | 5 +-- drivers/scsi/isci/phy.h | 2 - drivers/scsi/isci/port.c | 29 +----------- drivers/scsi/isci/port.h | 5 --- drivers/scsi/isci/remote_device.c | 30 ++++++------- drivers/scsi/isci/request.c | 6 +-- drivers/scsi/isci/sci_environment.h | 4 +- drivers/scsi/isci/task.c | 15 +++---- drivers/scsi/isci/task.h | 4 +- 18 files changed, 83 insertions(+), 163 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/core/scic_sds_controller.c b/drivers/scsi/isci/core/scic_sds_controller.c index 3fe73cbc052..ea510411460 100644 --- a/drivers/scsi/isci/core/scic_sds_controller.c +++ b/drivers/scsi/isci/core/scic_sds_controller.c @@ -214,7 +214,7 @@ static void scic_sds_controller_power_control_timer_handler( static void scic_sds_controller_initialize_power_control(struct scic_sds_controller *scic) { - struct isci_host *ihost = scic->ihost; + struct isci_host *ihost = scic_to_ihost(scic); scic->power_control.timer = isci_timer_create(ihost, scic, scic_sds_controller_power_control_timer_handler); @@ -585,7 +585,7 @@ static void scic_sds_controller_transition_to_ready( struct scic_sds_controller *scic, enum sci_status status) { - struct isci_host *ihost = scic->ihost; + struct isci_host *ihost = scic_to_ihost(scic); if (scic->state_machine.current_state_id == SCI_BASE_CONTROLLER_STATE_STARTING) { @@ -603,7 +603,7 @@ static void scic_sds_controller_transition_to_ready( static void scic_sds_controller_timeout_handler(void *_scic) { struct scic_sds_controller *scic = _scic; - struct isci_host *ihost = scic->ihost; + struct isci_host *ihost = scic_to_ihost(scic); struct sci_base_state_machine *sm = &scic->state_machine; if (sm->current_state_id == SCI_BASE_CONTROLLER_STATE_STARTING) @@ -771,7 +771,7 @@ static void scic_sds_controller_phy_startup_timeout_handler(void *_scic) static enum sci_status scic_sds_controller_initialize_phy_startup(struct scic_sds_controller *scic) { - struct isci_host *ihost = scic->ihost; + struct isci_host *ihost = scic_to_ihost(scic); scic->phy_startup_timer = isci_timer_create(ihost, scic, @@ -1775,7 +1775,7 @@ void scic_sds_controller_release_frame( */ static void scic_sds_controller_set_default_config_parameters(struct scic_sds_controller *scic) { - struct isci_host *ihost = scic->ihost; + struct isci_host *ihost = scic_to_ihost(scic); u16 index; /* Default to APC mode. */ @@ -2619,17 +2619,12 @@ static enum sci_status scic_controller_set_interrupt_coalescence( } -struct scic_sds_controller *scic_controller_alloc(struct device *dev) -{ - return devm_kzalloc(dev, sizeof(struct scic_sds_controller), GFP_KERNEL); -} -enum sci_status scic_controller_initialize( - struct scic_sds_controller *scic) +enum sci_status scic_controller_initialize(struct scic_sds_controller *scic) { struct sci_base_state_machine *sm = &scic->state_machine; enum sci_status result = SCI_SUCCESS; - struct isci_host *ihost; + struct isci_host *ihost = scic_to_ihost(scic); u32 index, state; if (scic->state_machine.current_state_id != @@ -2640,9 +2635,6 @@ enum sci_status scic_controller_initialize( return SCI_FAILURE_INVALID_STATE; } - - ihost = scic->ihost; - sci_base_state_machine_change_state(sm, SCI_BASE_CONTROLLER_STATE_INITIALIZING); scic->timeout_timer = isci_timer_create(ihost, diff --git a/drivers/scsi/isci/core/scic_sds_controller.h b/drivers/scsi/isci/core/scic_sds_controller.h index 08aee06c124..0a9bb8b7725 100644 --- a/drivers/scsi/isci/core/scic_sds_controller.h +++ b/drivers/scsi/isci/core/scic_sds_controller.h @@ -125,18 +125,12 @@ struct scic_power_control { }; -struct isci_host; /** * struct scic_sds_controller - * * This structure represents the SCU controller object. */ struct scic_sds_controller { - /** - * The field specifies that the peer object for the controller. - */ - struct isci_host *ihost; - /** * This field contains the information for the base controller state * machine. diff --git a/drivers/scsi/isci/core/scic_sds_phy.c b/drivers/scsi/isci/core/scic_sds_phy.c index 18dc14a8f0b..8f1e3db6bb2 100644 --- a/drivers/scsi/isci/core/scic_sds_phy.c +++ b/drivers/scsi/isci/core/scic_sds_phy.c @@ -339,7 +339,7 @@ enum sci_status scic_sds_phy_initialize( struct scu_link_layer_registers __iomem *link_layer_registers) { struct scic_sds_controller *scic = scic_sds_phy_get_controller(sci_phy); - struct isci_host *ihost = scic->ihost; + struct isci_host *ihost = scic_to_ihost(scic); /* Create the SIGNATURE FIS Timeout timer for this phy */ sci_phy->sata_timeout_timer = @@ -1790,7 +1790,7 @@ scic_sds_phy_stopped_state_start_handler(struct scic_sds_phy *sci_phy) struct scic_sds_controller *scic; scic = scic_sds_phy_get_controller(sci_phy), - ihost = scic->ihost; + ihost = scic_to_ihost(scic); /* Create the SIGNATURE FIS Timeout timer for this phy */ sci_phy->sata_timeout_timer = isci_timer_create(ihost, sci_phy, @@ -2076,7 +2076,7 @@ static void scic_sds_phy_stopped_state_enter(void *object) { struct scic_sds_phy *sci_phy = object; struct scic_sds_controller *scic = scic_sds_phy_get_controller(sci_phy); - struct isci_host *ihost = scic->ihost; + struct isci_host *ihost = scic_to_ihost(scic); /* * @todo We need to get to the controller to place this PE in a diff --git a/drivers/scsi/isci/core/scic_sds_port.c b/drivers/scsi/isci/core/scic_sds_port.c index 0c89fc1c09f..04a56c5a68d 100644 --- a/drivers/scsi/isci/core/scic_sds_port.c +++ b/drivers/scsi/isci/core/scic_sds_port.c @@ -625,7 +625,7 @@ static void scic_sds_port_activate_phy(struct scic_sds_port *sci_port, bool do_notify_user) { struct scic_sds_controller *scic = sci_port->owning_controller; - struct isci_host *ihost = scic->ihost; + struct isci_host *ihost = scic_to_ihost(scic); if (sci_phy->protocol != SCIC_SDS_PHY_PROTOCOL_SATA) scic_sds_phy_resume(sci_phy); @@ -644,7 +644,7 @@ void scic_sds_port_deactivate_phy(struct scic_sds_port *sci_port, { struct scic_sds_controller *scic = scic_sds_port_get_controller(sci_port); struct isci_port *iport = sci_port->iport; - struct isci_host *ihost = scic->ihost; + struct isci_host *ihost = scic_to_ihost(scic); struct isci_phy *iphy = sci_phy->iphy; sci_port->active_phy_mask &= ~(1 << sci_phy->phy_index); @@ -667,12 +667,10 @@ void scic_sds_port_deactivate_phy(struct scic_sds_port *sci_port, * This function will disable the phy and report that the phy is not valid for * this port object. None */ -static void scic_sds_port_invalid_link_up( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) +static void scic_sds_port_invalid_link_up(struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) { - struct scic_sds_controller *scic = - scic_sds_port_get_controller(sci_port); + struct scic_sds_controller *scic = sci_port->owning_controller; /* * Check to see if we have alreay reported this link as bad and if @@ -681,7 +679,7 @@ static void scic_sds_port_invalid_link_up( */ if ((scic->invalid_phy_mask & (1 << sci_phy->phy_index)) == 0) { scic_sds_controller_set_invalid_phy(scic, sci_phy); - isci_port_invalid_link_up(scic, sci_port, sci_phy); + dev_warn(&scic_to_ihost(scic)->pdev->dev, "Invalid link up!\n"); } } @@ -971,7 +969,7 @@ void scic_sds_port_broadcast_change_received( struct scic_sds_phy *sci_phy) { struct scic_sds_controller *scic = sci_port->owning_controller; - struct isci_host *ihost = scic->ihost; + struct isci_host *ihost = scic_to_ihost(scic); /* notify the user. */ isci_port_bc_change_received(ihost, sci_port, sci_phy); @@ -1625,7 +1623,7 @@ static void scic_sds_port_ready_substate_operational_enter(void *object) struct scic_sds_port *sci_port = object; struct scic_sds_controller *scic = scic_sds_port_get_controller(sci_port); - struct isci_host *ihost = scic->ihost; + struct isci_host *ihost = scic_to_ihost(scic); struct isci_port *iport = sci_port->iport; scic_sds_port_set_ready_state_handlers( @@ -1666,7 +1664,7 @@ static void scic_sds_port_ready_substate_operational_exit(void *object) struct scic_sds_port *sci_port = object; struct scic_sds_controller *scic = scic_sds_port_get_controller(sci_port); - struct isci_host *ihost = scic->ihost; + struct isci_host *ihost = scic_to_ihost(scic); struct isci_port *iport = sci_port->iport; /* @@ -1697,7 +1695,7 @@ static void scic_sds_port_ready_substate_configuring_enter(void *object) struct scic_sds_port *sci_port = object; struct scic_sds_controller *scic = scic_sds_port_get_controller(sci_port); - struct isci_host *ihost = scic->ihost; + struct isci_host *ihost = scic_to_ihost(scic); struct isci_port *iport = sci_port->iport; scic_sds_port_set_ready_state_handlers( @@ -1784,7 +1782,7 @@ static enum sci_status scic_sds_port_stopped_state_start_handler(struct scic_sds_port *sci_port) { struct scic_sds_controller *scic = sci_port->owning_controller; - struct isci_host *ihost = scic->ihost; + struct isci_host *ihost = scic_to_ihost(scic); enum sci_status status = SCI_SUCCESS; u32 phy_mask; @@ -2259,16 +2257,12 @@ static void scic_sds_port_stopped_state_exit(void *object) */ static void scic_sds_port_ready_state_enter(void *object) { - struct scic_sds_controller *scic; struct scic_sds_port *sci_port = object; - struct isci_port *iport; - struct isci_host *ihost; + struct scic_sds_controller *scic = sci_port->owning_controller; + struct isci_host *ihost = scic_to_ihost(scic); + struct isci_port *iport = sci_port->iport; u32 prev_state; - scic = scic_sds_port_get_controller(sci_port); - ihost = scic->ihost; - iport = sci_port->iport; - /* Put the ready state handlers in place though they will not be there long */ scic_sds_port_set_base_state_handlers(sci_port, SCI_BASE_PORT_STATE_READY); diff --git a/drivers/scsi/isci/core/scic_sds_port_configuration_agent.c b/drivers/scsi/isci/core/scic_sds_port_configuration_agent.c index df257ffa0f8..6b1f4a0ad99 100644 --- a/drivers/scsi/isci/core/scic_sds_port_configuration_agent.c +++ b/drivers/scsi/isci/core/scic_sds_port_configuration_agent.c @@ -808,20 +808,13 @@ void scic_sds_port_configuration_agent_construct( } } -/** - * - * @controller: This is the controller object for which the port agent is being - * initialized. - * - * This method will construct the port configuration agent for this controller. - */ enum sci_status scic_sds_port_configuration_agent_initialize( struct scic_sds_controller *scic, struct scic_sds_port_configuration_agent *port_agent) { enum sci_status status = SCI_SUCCESS; enum scic_port_configuration_mode mode; - struct isci_host *ihost = scic->ihost; + struct isci_host *ihost = scic_to_ihost(scic); mode = scic->oem_parameters.sds1.controller.mode_type; diff --git a/drivers/scsi/isci/core/scic_sds_request.c b/drivers/scsi/isci/core/scic_sds_request.c index 85e40ce96e9..6286decd62e 100644 --- a/drivers/scsi/isci/core/scic_sds_request.c +++ b/drivers/scsi/isci/core/scic_sds_request.c @@ -1545,7 +1545,7 @@ static void scic_sds_request_completed_state_enter(void *object) struct scic_sds_request *sci_req = object; struct scic_sds_controller *scic = scic_sds_request_get_controller(sci_req); - struct isci_host *ihost = scic->ihost; + struct isci_host *ihost = scic_to_ihost(scic); struct isci_request *ireq = sci_req->ireq; SET_STATE_HANDLER(sci_req, diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index 55bfa3dbfb8..d180ad8a8bc 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -65,9 +65,8 @@ irqreturn_t isci_msix_isr(int vec, void *data) { struct isci_host *ihost = data; - struct scic_sds_controller *scic = ihost->core_controller; - if (scic_sds_controller_isr(scic)) + if (scic_sds_controller_isr(&ihost->sci)) tasklet_schedule(&ihost->completion_tasklet); return IRQ_HANDLED; @@ -77,7 +76,7 @@ irqreturn_t isci_intx_isr(int vec, void *data) { irqreturn_t ret = IRQ_NONE; struct isci_host *ihost = data; - struct scic_sds_controller *scic = ihost->core_controller; + struct scic_sds_controller *scic = &ihost->sci; if (scic_sds_controller_isr(scic)) { writel(SMU_ISR_COMPLETION, &scic->smu_registers->interrupt_status); @@ -96,10 +95,9 @@ irqreturn_t isci_intx_isr(int vec, void *data) irqreturn_t isci_error_isr(int vec, void *data) { struct isci_host *ihost = data; - struct scic_sds_controller *scic = ihost->core_controller; - if (scic_sds_controller_error_isr(scic)) - scic_sds_controller_error_handler(scic); + if (scic_sds_controller_error_isr(&ihost->sci)) + scic_sds_controller_error_handler(&ihost->sci); return IRQ_HANDLED; } @@ -145,21 +143,20 @@ int isci_host_scan_finished(struct Scsi_Host *shost, unsigned long time) void isci_host_scan_start(struct Scsi_Host *shost) { struct isci_host *ihost = SHOST_TO_SAS_HA(shost)->lldd_ha; - struct scic_sds_controller *scic = ihost->core_controller; - unsigned long tmo = scic_controller_get_suggested_start_timeout(scic); + unsigned long tmo = scic_controller_get_suggested_start_timeout(&ihost->sci); set_bit(IHOST_START_PENDING, &ihost->flags); spin_lock_irq(&ihost->scic_lock); - scic_controller_start(scic, tmo); - scic_controller_enable_interrupts(scic); + scic_controller_start(&ihost->sci, tmo); + scic_controller_enable_interrupts(&ihost->sci); spin_unlock_irq(&ihost->scic_lock); } void isci_host_stop_complete(struct isci_host *ihost, enum sci_status completion_status) { isci_host_change_state(ihost, isci_stopped); - scic_controller_disable_interrupts(ihost->core_controller); + scic_controller_disable_interrupts(&ihost->sci); clear_bit(IHOST_STOP_PENDING, &ihost->flags); wake_up(&ihost->eventq); } @@ -188,7 +185,7 @@ static void isci_host_completion_routine(unsigned long data) spin_lock_irq(&isci_host->scic_lock); - scic_sds_controller_completion_handler(isci_host->core_controller); + scic_sds_controller_completion_handler(&isci_host->sci); /* Take the lists of completed I/Os from the host. */ @@ -276,7 +273,6 @@ static void isci_host_completion_routine(unsigned long data) void isci_host_deinit(struct isci_host *ihost) { - struct scic_sds_controller *scic = ihost->core_controller; int i; isci_host_change_state(ihost, isci_stopping); @@ -293,11 +289,11 @@ void isci_host_deinit(struct isci_host *ihost) set_bit(IHOST_STOP_PENDING, &ihost->flags); spin_lock_irq(&ihost->scic_lock); - scic_controller_stop(scic, SCIC_CONTROLLER_STOP_TIMEOUT); + scic_controller_stop(&ihost->sci, SCIC_CONTROLLER_STOP_TIMEOUT); spin_unlock_irq(&ihost->scic_lock); wait_for_stop(ihost); - scic_controller_reset(scic); + scic_controller_reset(&ihost->sci); isci_timer_list_destroy(ihost); } @@ -347,25 +343,12 @@ int isci_host_init(struct isci_host *isci_host) { int err = 0, i; enum sci_status status; - struct scic_sds_controller *controller; union scic_oem_parameters oem; union scic_user_parameters scic_user_params; struct isci_pci_info *pci_info = to_pci_info(isci_host->pdev); isci_timer_list_construct(isci_host); - controller = scic_controller_alloc(&isci_host->pdev->dev); - - if (!controller) { - dev_err(&isci_host->pdev->dev, - "%s: failed (%d)\n", - __func__, - err); - return -ENOMEM; - } - - isci_host->core_controller = controller; - controller->ihost = isci_host; spin_lock_init(&isci_host->state_lock); spin_lock_init(&isci_host->scic_lock); spin_lock_init(&isci_host->queue_lock); @@ -374,7 +357,7 @@ int isci_host_init(struct isci_host *isci_host) isci_host_change_state(isci_host, isci_starting); isci_host->can_queue = ISCI_CAN_QUEUE_VAL; - status = scic_controller_construct(controller, scu_base(isci_host), + status = scic_controller_construct(&isci_host->sci, scu_base(isci_host), smu_base(isci_host)); if (status != SCI_SUCCESS) { @@ -393,7 +376,7 @@ int isci_host_init(struct isci_host *isci_host) * parameters */ isci_user_parameters_get(isci_host, &scic_user_params); - status = scic_user_parameters_set(isci_host->core_controller, + status = scic_user_parameters_set(&isci_host->sci, &scic_user_params); if (status != SCI_SUCCESS) { dev_warn(&isci_host->pdev->dev, @@ -402,7 +385,7 @@ int isci_host_init(struct isci_host *isci_host) return -ENODEV; } - scic_oem_parameters_get(controller, &oem); + scic_oem_parameters_get(&isci_host->sci, &oem); /* grab any OEM parameters specified in orom */ if (pci_info->orom) { @@ -416,7 +399,7 @@ int isci_host_init(struct isci_host *isci_host) } } - status = scic_oem_parameters_set(isci_host->core_controller, &oem); + status = scic_oem_parameters_set(&isci_host->sci, &oem); if (status != SCI_SUCCESS) { dev_warn(&isci_host->pdev->dev, "%s: scic_oem_parameters_set failed\n", @@ -431,7 +414,7 @@ int isci_host_init(struct isci_host *isci_host) INIT_LIST_HEAD(&isci_host->requests_to_errorback); spin_lock_irq(&isci_host->scic_lock); - status = scic_controller_initialize(isci_host->core_controller); + status = scic_controller_initialize(&isci_host->sci); spin_unlock_irq(&isci_host->scic_lock); if (status != SCI_SUCCESS) { dev_warn(&isci_host->pdev->dev, @@ -441,7 +424,7 @@ int isci_host_init(struct isci_host *isci_host) return -ENODEV; } - err = scic_controller_mem_init(isci_host->core_controller); + err = scic_controller_mem_init(&isci_host->sci); if (err) return err; diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index 8dc8d1c4698..00e4854e20d 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -58,7 +58,7 @@ #define _SCI_HOST_H_ #include "phy.h" -/*#include "task.h"*/ +#include "scic_sds_controller.h" #include "timers.h" #include "remote_device.h" @@ -75,7 +75,7 @@ #define SCIC_CONTROLLER_STOP_TIMEOUT 5000 struct isci_host { - struct scic_sds_controller *core_controller; + struct scic_sds_controller sci; union scic_oem_parameters oem_parameters; int id; /* unique within a given pci device */ @@ -219,6 +219,14 @@ static inline struct isci_host *dev_to_ihost(struct domain_device *dev) return dev->port->ha->lldd_ha; } +static inline struct isci_host *scic_to_ihost(struct scic_sds_controller *scic) +{ + /* XXX delete after merging scic_sds_contoller and isci_host */ + struct isci_host *ihost = container_of(scic, typeof(*ihost), sci); + + return ihost; +} + /** * isci_host_scan_finished() - * diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index 6c2d686fe7c..a5d5c0b97d0 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -268,7 +268,7 @@ static void isci_unregister(struct isci_host *isci_host) static int __devinit isci_pci_init(struct pci_dev *pdev) { - int err, bar_num, bar_mask; + int err, bar_num, bar_mask = 0; void __iomem * const *iomap; err = pcim_enable_device(pdev); @@ -556,7 +556,7 @@ static void __devexit isci_pci_remove(struct pci_dev *pdev) for_each_isci_host(i, isci_host, pdev) { isci_unregister(isci_host); isci_host_deinit(isci_host); - scic_controller_disable_interrupts(isci_host->core_controller); + scic_controller_disable_interrupts(&isci_host->sci); } } diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c index a690b6b664f..160790a0de0 100644 --- a/drivers/scsi/isci/phy.c +++ b/drivers/scsi/isci/phy.c @@ -79,7 +79,6 @@ void isci_phy_init( struct isci_host *isci_host, int index) { - struct scic_sds_controller *scic = isci_host->core_controller; struct scic_sds_phy *scic_phy; union scic_oem_parameters oem; enum sci_status status = SCI_SUCCESS; @@ -87,7 +86,7 @@ void isci_phy_init( /*--------------- SCU_Phy Initialization Stuff -----------------------*/ - status = scic_controller_get_phy_handle(scic, index, &scic_phy); + status = scic_controller_get_phy_handle(&isci_host->sci, index, &scic_phy); if (status == SCI_SUCCESS) { phy->sci_phy_handle = scic_phy; scic_phy->iphy = phy; @@ -95,7 +94,7 @@ void isci_phy_init( dev_err(&isci_host->pdev->dev, "failed scic_controller_get_phy_handle\n"); - scic_oem_parameters_get(scic, &oem); + scic_oem_parameters_get(&isci_host->sci, &oem); sas_addr = oem.sds1.phys[index].sas_address.high; sas_addr <<= 32; sas_addr |= oem.sds1.phys[index].sas_address.low; diff --git a/drivers/scsi/isci/phy.h b/drivers/scsi/isci/phy.h index d4c4975546e..21f6050eadb 100644 --- a/drivers/scsi/isci/phy.h +++ b/drivers/scsi/isci/phy.h @@ -85,8 +85,6 @@ struct isci_phy { #define to_isci_phy(p) \ container_of(p, struct isci_phy, sas_phy); -struct isci_host; - void isci_phy_init( struct isci_phy *phy, struct isci_host *isci_host, diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 2decafbeb96..8d96a10341b 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -90,7 +90,6 @@ void isci_port_init( int index) { struct scic_sds_port *scic_port; - struct scic_sds_controller *controller = isci_host->core_controller; INIT_LIST_HEAD(&isci_port->remote_dev_list); INIT_LIST_HEAD(&isci_port->domain_dev_list); @@ -99,7 +98,7 @@ void isci_port_init( isci_port->isci_host = isci_host; isci_port_change_state(isci_port, isci_freed); - (void)scic_controller_get_port_handle(controller, index, &scic_port); + (void)scic_controller_get_port_handle(&isci_host->sci, index, &scic_port); isci_port->sci_port_handle = scic_port; scic_port->iport = isci_port; } @@ -415,33 +414,9 @@ int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *ipor return ret; } -/** - * isci_port_invalid_link_up() - This function informs the SCI Core user that - * a phy/link became ready, but the phy is not allowed in the port. In some - * situations the underlying hardware only allows for certain phy to port - * mappings. If these mappings are violated, then this API is invoked. - * @controller: This parameter represents the controller which contains the - * port. - * @port: This parameter specifies the SCI port object for which the callback - * is being invoked. - * @phy: This parameter specifies the phy that came ready, but the phy can't be - * a valid member of the port. - * - */ -void isci_port_invalid_link_up(struct scic_sds_controller *scic, - struct scic_sds_port *sci_port, - struct scic_sds_phy *phy) -{ - struct isci_host *ihost = scic->ihost; - - dev_warn(&ihost->pdev->dev, "Invalid link up!\n"); -} - void isci_port_stop_complete(struct scic_sds_controller *scic, struct scic_sds_port *sci_port, enum sci_status completion_status) { - struct isci_host *ihost = scic->ihost; - - dev_dbg(&ihost->pdev->dev, "Port stop complete\n"); + dev_dbg(&scic_to_ihost(scic)->pdev->dev, "Port stop complete\n"); } diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index eeac7bbc943..ac1ac86ead6 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -147,11 +147,6 @@ void isci_port_hard_reset_complete( int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *iport, struct isci_phy *iphy); -void isci_port_invalid_link_up( - struct scic_sds_controller *scic, - struct scic_sds_port *sci_port, - struct scic_sds_phy *phy); - void isci_port_stop_complete( struct scic_sds_controller *scic, struct scic_sds_port *sci_port, diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index ee6fe1db8f9..734d028448b 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -815,7 +815,7 @@ static void scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handl * As a result, avoid sending the ready notification. */ if (sci_dev->state_machine.previous_state_id != SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ) - isci_remote_device_ready(scic->ihost, idev); + isci_remote_device_ready(scic_to_ihost(scic), idev); } static void scic_sds_remote_device_initial_state_enter(void *object) @@ -918,21 +918,16 @@ static void isci_remote_device_stop_complete(struct isci_host *ihost, static void scic_sds_remote_device_stopped_state_enter(void *object) { struct scic_sds_remote_device *sci_dev = object; - struct scic_sds_controller *scic; - struct isci_remote_device *idev; - struct isci_host *ihost; + struct scic_sds_controller *scic = sci_dev->owning_port->owning_controller; + struct isci_remote_device *idev = sci_dev_to_idev(sci_dev); u32 prev_state; - scic = scic_sds_remote_device_get_controller(sci_dev); - ihost = scic->ihost; - idev = sci_dev_to_idev(sci_dev); - /* If we are entering from the stopping state let the SCI User know that * the stop operation has completed. */ prev_state = sci_dev->state_machine.previous_state_id; if (prev_state == SCI_BASE_REMOTE_DEVICE_STATE_STOPPING) - isci_remote_device_stop_complete(ihost, idev); + isci_remote_device_stop_complete(scic_to_ihost(scic), idev); scic_sds_controller_remote_device_stopped(scic, sci_dev); } @@ -941,7 +936,7 @@ static void scic_sds_remote_device_starting_state_enter(void *object) { struct scic_sds_remote_device *sci_dev = object; struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); - struct isci_host *ihost = scic->ihost; + struct isci_host *ihost = scic_to_ihost(scic); struct isci_remote_device *idev = sci_dev_to_idev(sci_dev); isci_remote_device_not_ready(ihost, idev, @@ -952,7 +947,8 @@ static void scic_sds_remote_device_ready_state_enter(void *object) { struct scic_sds_remote_device *sci_dev = object; struct scic_sds_controller *scic = sci_dev->owning_port->owning_controller; - struct domain_device *dev = sci_dev_to_domain(sci_dev); + struct isci_remote_device *idev = sci_dev_to_idev(sci_dev); + struct domain_device *dev = idev->domain_dev; scic->remote_device_sequence[sci_dev->rnc.remote_node_index]++; @@ -963,7 +959,7 @@ static void scic_sds_remote_device_ready_state_enter(void *object) sci_base_state_machine_change_state(&sci_dev->state_machine, SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE); } else - isci_remote_device_ready(scic->ihost, sci_dev_to_idev(sci_dev)); + isci_remote_device_ready(scic_to_ihost(scic), idev); } static void scic_sds_remote_device_ready_state_exit(void *object) @@ -975,7 +971,7 @@ static void scic_sds_remote_device_ready_state_exit(void *object) struct scic_sds_controller *scic = sci_dev->owning_port->owning_controller; struct isci_remote_device *idev = sci_dev_to_idev(sci_dev); - isci_remote_device_not_ready(scic->ihost, idev, + isci_remote_device_not_ready(scic_to_ihost(scic), idev, SCIC_REMOTE_DEVICE_NOT_READY_STOP_REQUESTED); } } @@ -1019,7 +1015,7 @@ static void scic_sds_stp_remote_device_ready_cmd_substate_enter(void *object) BUG_ON(sci_dev->working_request == NULL); - isci_remote_device_not_ready(scic->ihost, sci_dev_to_idev(sci_dev), + isci_remote_device_not_ready(scic_to_ihost(scic), sci_dev_to_idev(sci_dev), SCIC_REMOTE_DEVICE_NOT_READY_SATA_REQUEST_STARTED); } @@ -1030,7 +1026,7 @@ static void scic_sds_stp_remote_device_ready_ncq_error_substate_enter(void *obje struct isci_remote_device *idev = sci_dev_to_idev(sci_dev); if (sci_dev->not_ready_reason == SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED) - isci_remote_device_not_ready(scic->ihost, idev, + isci_remote_device_not_ready(scic_to_ihost(scic), idev, sci_dev->not_ready_reason); } @@ -1039,7 +1035,7 @@ static void scic_sds_smp_remote_device_ready_idle_substate_enter(void *object) struct scic_sds_remote_device *sci_dev = object; struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); - isci_remote_device_ready(scic->ihost, sci_dev_to_idev(sci_dev)); + isci_remote_device_ready(scic_to_ihost(scic), sci_dev_to_idev(sci_dev)); } static void scic_sds_smp_remote_device_ready_cmd_substate_enter(void *object) @@ -1049,7 +1045,7 @@ static void scic_sds_smp_remote_device_ready_cmd_substate_enter(void *object) BUG_ON(sci_dev->working_request == NULL); - isci_remote_device_not_ready(scic->ihost, sci_dev_to_idev(sci_dev), + isci_remote_device_not_ready(scic_to_ihost(scic), sci_dev_to_idev(sci_dev), SCIC_REMOTE_DEVICE_NOT_READY_SMP_REQUEST_STARTED); } diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index 36adc1589ef..0521c045d43 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -201,7 +201,7 @@ static enum sci_status isci_io_request_build( * we will let the core allocate the IO tag. */ status = scic_io_request_construct( - isci_host->core_controller, + &isci_host->sci, sci_device, SCI_CONTROLLER_INVALID_IO_TAG, request, @@ -394,7 +394,7 @@ int isci_request_execute( /* send the request, let the core assign the IO TAG. */ status = scic_controller_start_io( - isci_host->core_controller, + &isci_host->sci, sci_device, request->sci_request_handle, SCI_CONTROLLER_INVALID_IO_TAG @@ -1186,7 +1186,7 @@ void isci_request_io_request_complete( ); /* complete the io request to the core. */ - scic_controller_complete_io(isci_host->core_controller, + scic_controller_complete_io(&isci_host->sci, &isci_device->sci, request->sci_request_handle); /* NULL the request handle so it cannot be completed or diff --git a/drivers/scsi/isci/sci_environment.h b/drivers/scsi/isci/sci_environment.h index 41636c34da9..8394f60c5c2 100644 --- a/drivers/scsi/isci/sci_environment.h +++ b/drivers/scsi/isci/sci_environment.h @@ -62,9 +62,7 @@ static inline struct device *scic_to_dev(struct scic_sds_controller *scic) { - struct isci_host *isci_host = scic->ihost; - - return &isci_host->pdev->dev; + return &scic_to_ihost(scic)->pdev->dev; } static inline struct device *sciphy_to_dev(struct scic_sds_phy *sci_phy) diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index 3a3f54677e5..cabad0b03ee 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -299,7 +299,7 @@ static enum sci_status isci_task_request_build( /* let the core do it's construct. */ status = scic_task_request_construct( - isci_host->core_controller, + &isci_host->sci, sci_device, SCI_CONTROLLER_INVALID_IO_TAG, request, @@ -378,7 +378,7 @@ static void isci_tmf_timeout_cb(void *tmf_request_arg) /* Terminate the TMF transmit request. */ status = scic_controller_terminate_request( - request->isci_host->core_controller, + &request->isci_host->sci, &request->isci_device->sci, request->sci_request_handle ); @@ -469,7 +469,7 @@ int isci_task_execute_tmf( /* start the TMF io. */ status = scic_controller_start_task( - isci_host->core_controller, + &isci_host->sci, sci_device, request->sci_request_handle, SCI_CONTROLLER_INVALID_IO_TAG @@ -772,7 +772,7 @@ static void isci_terminate_request_core( was_terminated = true; needs_cleanup_handling = true; status = scic_controller_terminate_request( - isci_host->core_controller, + &isci_host->sci, &isci_device->sci, isci_request->sci_request_handle); } @@ -1466,12 +1466,9 @@ isci_task_request_complete(struct isci_host *ihost, /* PRINT_TMF( ((struct isci_tmf *)request->task)); */ tmf_complete = tmf->complete; - scic_controller_complete_io(ihost->core_controller, - &idev->sci, + scic_controller_complete_io(&ihost->sci, &idev->sci, ireq->sci_request_handle); - - /* - * NULL the request handle to make sure it cannot be terminated + /* NULL the request handle to make sure it cannot be terminated * or completed again. */ ireq->sci_request_handle = NULL; diff --git a/drivers/scsi/isci/task.h b/drivers/scsi/isci/task.h index aa2458658d1..ecc5f139506 100644 --- a/drivers/scsi/isci/task.h +++ b/drivers/scsi/isci/task.h @@ -52,14 +52,12 @@ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - -#if !defined(_ISCI_TASK_H_) +#ifndef _ISCI_TASK_H_ #define _ISCI_TASK_H_ #include struct isci_request; -struct isci_host; /** * enum isci_tmf_cb_state - This enum defines the possible states in which the -- cgit v1.2.3-70-g09d2 From e531381e2f8a68b8737c63c7bb890ad80b2470bd Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Sat, 7 May 2011 10:11:43 -0700 Subject: isci: unify port data structures Make scic_sds_port a member of isci_port and merge their lifetimes which means removing the port table from scic_sds_controller in favor of the one at the isci_host level. Merge ihost->sas_ports into ihost->ports. _ Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/core/scic_sds_controller.c | 19 +++++----- drivers/scsi/isci/core/scic_sds_controller.h | 7 ---- drivers/scsi/isci/core/scic_sds_port.c | 44 +++++++++------------- drivers/scsi/isci/core/scic_sds_port.h | 5 --- .../isci/core/scic_sds_port_configuration_agent.c | 18 +++++---- drivers/scsi/isci/host.c | 6 +-- drivers/scsi/isci/host.h | 7 +--- drivers/scsi/isci/init.c | 4 +- drivers/scsi/isci/port.c | 41 +++++++------------- drivers/scsi/isci/port.h | 25 +++++------- drivers/scsi/isci/remote_device.c | 2 +- drivers/scsi/isci/sci_environment.h | 2 +- 12 files changed, 67 insertions(+), 113 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/core/scic_sds_controller.c b/drivers/scsi/isci/core/scic_sds_controller.c index 4ad31550c8a..4179bdf3eda 100644 --- a/drivers/scsi/isci/core/scic_sds_controller.c +++ b/drivers/scsi/isci/core/scic_sds_controller.c @@ -623,9 +623,10 @@ static enum sci_status scic_sds_controller_stop_ports(struct scic_sds_controller u32 index; enum sci_status port_status; enum sci_status status = SCI_SUCCESS; + struct isci_host *ihost = scic_to_ihost(scic); for (index = 0; index < scic->logical_port_entries; index++) { - struct scic_sds_port *sci_port = &scic->port_table[index]; + struct scic_sds_port *sci_port = &ihost->ports[index].sci; scic_sds_port_handler_t stop; stop = sci_port->state_handlers->stop_handler; @@ -2686,7 +2687,7 @@ enum sci_status scic_controller_initialize(struct scic_sds_controller *scic) (result == SCI_SUCCESS); index++) { result = scic_sds_port_initialize( - &scic->port_table[index], + &ihost->ports[index].sci, &scic->scu_registers->peg0.ptsg.port[index], &scic->scu_registers->peg0.ptsg.protocol_engine, &scic->scu_registers->peg0.viit[index]); @@ -2709,8 +2710,9 @@ enum sci_status scic_controller_initialize(struct scic_sds_controller *scic) } enum sci_status scic_controller_start(struct scic_sds_controller *scic, - u32 timeout) + u32 timeout) { + struct isci_host *ihost = scic_to_ihost(scic); enum sci_status result; u16 index; @@ -2752,10 +2754,9 @@ enum sci_status scic_controller_start(struct scic_sds_controller *scic, /* Start all of the ports on this controller */ for (index = 0; index < scic->logical_port_entries; index++) { - struct scic_sds_port *sci_port = &scic->port_table[index]; + struct scic_sds_port *sci_port = &ihost->ports[index].sci; - result = sci_port->state_handlers->start_handler( - sci_port); + result = sci_port->state_handlers->start_handler(sci_port); if (result) return result; } @@ -2944,14 +2945,14 @@ enum sci_status scic_controller_construct(struct scic_sds_controller *scic, /* Construct the ports for this controller */ for (i = 0; i < SCI_MAX_PORTS; i++) - scic_sds_port_construct(&scic->port_table[i], i, scic); - scic_sds_port_construct(&scic->port_table[i], SCIC_SDS_DUMMY_PORT, scic); + scic_sds_port_construct(&ihost->ports[i].sci, i, scic); + scic_sds_port_construct(&ihost->ports[i].sci, SCIC_SDS_DUMMY_PORT, scic); /* Construct the phys for this controller */ for (i = 0; i < SCI_MAX_PHYS; i++) { /* Add all the PHYs to the dummy port */ scic_sds_phy_construct(&ihost->phys[i].sci, - &scic->port_table[SCI_MAX_PORTS], i); + &ihost->ports[SCI_MAX_PORTS].sci, i); } scic->invalid_phy_mask = 0; diff --git a/drivers/scsi/isci/core/scic_sds_controller.h b/drivers/scsi/isci/core/scic_sds_controller.h index aaaf15ab7cf..0d5047319cb 100644 --- a/drivers/scsi/isci/core/scic_sds_controller.h +++ b/drivers/scsi/isci/core/scic_sds_controller.h @@ -160,13 +160,6 @@ struct scic_sds_controller { */ struct scic_sds_port_configuration_agent port_agent; - /** - * This field is the array of port objects that are controlled by this - * controller object. There is one dummy port object also contained within - * this controller object. - */ - struct scic_sds_port port_table[SCI_MAX_PORTS + 1]; - /** * This field is the array of device objects that are currently constructed * for this controller object. This table is used as a fast lookup of device diff --git a/drivers/scsi/isci/core/scic_sds_port.c b/drivers/scsi/isci/core/scic_sds_port.c index 84b8abb421a..01288dd44fb 100644 --- a/drivers/scsi/isci/core/scic_sds_port.c +++ b/drivers/scsi/isci/core/scic_sds_port.c @@ -283,18 +283,14 @@ static enum sci_status scic_sds_port_clear_phy( struct scic_sds_phy *phy) { /* Make sure that this phy is part of this port */ - if ( - (port->phy_table[phy->phy_index] == phy) - && (scic_sds_phy_get_port(phy) == port) - ) { - /* Yep it is assigned to this port so remove it */ - scic_sds_phy_set_port( - phy, - &scic_sds_port_get_controller(port)->port_table[SCI_MAX_PORTS] - ); + if (port->phy_table[phy->phy_index] == phy && + scic_sds_phy_get_port(phy) == port) { + struct scic_sds_controller *scic = port->owning_controller; + struct isci_host *ihost = scic_to_ihost(scic); + /* Yep it is assigned to this port so remove it */ + scic_sds_phy_set_port(phy, &ihost->ports[SCI_MAX_PORTS].sci); port->phy_table[phy->phy_index] = NULL; - return SCI_SUCCESS; } @@ -643,7 +639,7 @@ void scic_sds_port_deactivate_phy(struct scic_sds_port *sci_port, bool do_notify_user) { struct scic_sds_controller *scic = scic_sds_port_get_controller(sci_port); - struct isci_port *iport = sci_port->iport; + struct isci_port *iport = sci_port_to_iport(sci_port); struct isci_host *ihost = scic_to_ihost(scic); struct isci_phy *iphy = sci_phy_to_iphy(sci_phy); @@ -1620,10 +1616,9 @@ static void scic_sds_port_ready_substate_operational_enter(void *object) { u32 index; struct scic_sds_port *sci_port = object; - struct scic_sds_controller *scic = - scic_sds_port_get_controller(sci_port); + struct scic_sds_controller *scic = sci_port->owning_controller; struct isci_host *ihost = scic_to_ihost(scic); - struct isci_port *iport = sci_port->iport; + struct isci_port *iport = sci_port_to_iport(sci_port); scic_sds_port_set_ready_state_handlers( sci_port, @@ -1661,10 +1656,9 @@ static void scic_sds_port_ready_substate_operational_enter(void *object) static void scic_sds_port_ready_substate_operational_exit(void *object) { struct scic_sds_port *sci_port = object; - struct scic_sds_controller *scic = - scic_sds_port_get_controller(sci_port); + struct scic_sds_controller *scic = sci_port->owning_controller; struct isci_host *ihost = scic_to_ihost(scic); - struct isci_port *iport = sci_port->iport; + struct isci_port *iport = sci_port_to_iport(sci_port); /* * Kill the dummy task for this port if it has not yet posted @@ -1692,10 +1686,9 @@ static void scic_sds_port_ready_substate_operational_exit(void *object) static void scic_sds_port_ready_substate_configuring_enter(void *object) { struct scic_sds_port *sci_port = object; - struct scic_sds_controller *scic = - scic_sds_port_get_controller(sci_port); + struct scic_sds_controller *scic = sci_port->owning_controller; struct isci_host *ihost = scic_to_ihost(scic); - struct isci_port *iport = sci_port->iport; + struct isci_port *iport = sci_port_to_iport(sci_port); scic_sds_port_set_ready_state_handlers( sci_port, @@ -2259,7 +2252,7 @@ static void scic_sds_port_ready_state_enter(void *object) struct scic_sds_port *sci_port = object; struct scic_sds_controller *scic = sci_port->owning_controller; struct isci_host *ihost = scic_to_ihost(scic); - struct isci_port *iport = sci_port->iport; + struct isci_port *iport = sci_port_to_iport(sci_port); u32 prev_state; /* Put the ready state handlers in place though they will not be there long */ @@ -2366,7 +2359,7 @@ scic_sds_port_stopping_state_exit(void *object) static void scic_sds_port_failed_state_enter(void *object) { struct scic_sds_port *sci_port = object; - struct isci_port *iport = sci_port->iport; + struct isci_port *iport = sci_port_to_iport(sci_port); scic_sds_port_set_base_state_handlers(sci_port, SCI_BASE_PORT_STATE_FAILED); @@ -2398,11 +2391,9 @@ static const struct sci_base_state scic_sds_port_state_table[] = { } }; -void scic_sds_port_construct(struct scic_sds_port *sci_port, u8 port_index, +void scic_sds_port_construct(struct scic_sds_port *sci_port, u8 index, struct scic_sds_controller *scic) { - u32 index; - sci_base_state_machine_construct(&sci_port->state_machine, sci_port, scic_sds_port_state_table, @@ -2416,7 +2407,7 @@ void scic_sds_port_construct(struct scic_sds_port *sci_port, u8 port_index, SCIC_SDS_PORT_READY_SUBSTATE_WAITING); sci_port->logical_port_index = SCIC_SDS_DUMMY_PORT; - sci_port->physical_port_index = port_index; + sci_port->physical_port_index = index; sci_port->active_phy_mask = 0; sci_port->owning_controller = scic; @@ -2428,7 +2419,6 @@ void scic_sds_port_construct(struct scic_sds_port *sci_port, u8 port_index, sci_port->reserved_tci = SCU_DUMMY_INDEX; sci_port->timer_handle = NULL; - sci_port->port_task_scheduler_registers = NULL; for (index = 0; index < SCI_MAX_PHYS; index++) diff --git a/drivers/scsi/isci/core/scic_sds_port.h b/drivers/scsi/isci/core/scic_sds_port.h index 213d42330b4..3633561b686 100644 --- a/drivers/scsi/isci/core/scic_sds_port.h +++ b/drivers/scsi/isci/core/scic_sds_port.h @@ -151,17 +151,12 @@ enum scic_sds_port_states { }; -struct isci_port; /** * struct scic_sds_port * * The core port object provides the the abstraction for an SCU port. */ struct scic_sds_port { - /** - * The field specifies the peer object for the port. - */ - struct isci_port *iport; /** * This field contains the information for the base port state machine. diff --git a/drivers/scsi/isci/core/scic_sds_port_configuration_agent.c b/drivers/scsi/isci/core/scic_sds_port_configuration_agent.c index aa7ac95ecbc..2d3d067396d 100644 --- a/drivers/scsi/isci/core/scic_sds_port_configuration_agent.c +++ b/drivers/scsi/isci/core/scic_sds_port_configuration_agent.c @@ -141,14 +141,15 @@ static struct scic_sds_port *scic_sds_port_configuration_agent_find_port( scic_sds_phy_get_attached_sas_address(phy, &phy_attached_device_address); for (i = 0; i < scic->logical_port_entries; i++) { - struct scic_sds_port *port = &scic->port_table[i]; + struct isci_host *ihost = scic_to_ihost(scic); + struct scic_sds_port *sci_port = &ihost->ports[i].sci; - scic_sds_port_get_sas_address(port, &port_sas_address); - scic_sds_port_get_attached_sas_address(port, &port_attached_device_address); + scic_sds_port_get_sas_address(sci_port, &port_sas_address); + scic_sds_port_get_attached_sas_address(sci_port, &port_attached_device_address); - if ((sci_sas_address_compare(port_sas_address, phy_sas_address) == 0) && - (sci_sas_address_compare(port_attached_device_address, phy_attached_device_address) == 0)) - return port; + if (sci_sas_address_compare(port_sas_address, phy_sas_address) == 0 && + sci_sas_address_compare(port_attached_device_address, phy_attached_device_address) == 0) + return sci_port; } return NULL; @@ -324,7 +325,7 @@ static enum sci_status scic_sds_mpc_agent_validate_phy_configuration( port_agent->phy_valid_port_range[phy_index].min_index = port_index; port_agent->phy_valid_port_range[phy_index].max_index = phy_index; - scic_sds_port_add_phy(&controller->port_table[port_index], + scic_sds_port_add_phy(&ihost->ports[port_index].sci, &ihost->phys[phy_index].sci); assigned_phy_mask |= (1 << phy_index); @@ -550,6 +551,7 @@ static void scic_sds_apc_agent_configure_ports( enum sci_status status; struct scic_sds_port *port; enum SCIC_SDS_APC_ACTIVITY apc_activity = SCIC_SDS_APC_SKIP_PHY; + struct isci_host *ihost = scic_to_ihost(controller); port = scic_sds_port_configuration_agent_find_port(controller, phy); @@ -571,7 +573,7 @@ static void scic_sds_apc_agent_configure_ports( port_index++ ) { - port = &controller->port_table[port_index]; + port = &ihost->ports[port_index].sci; /* First we must make sure that this PHY can be added to this Port. */ if (scic_sds_port_is_valid_phy_assignment(port, phy->phy_index)) { diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index d180ad8a8bc..cdd99304c36 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -277,10 +277,10 @@ void isci_host_deinit(struct isci_host *ihost) isci_host_change_state(ihost, isci_stopping); for (i = 0; i < SCI_MAX_PORTS; i++) { - struct isci_port *port = &ihost->isci_ports[i]; + struct isci_port *iport = &ihost->ports[i]; struct isci_remote_device *idev, *d; - list_for_each_entry_safe(idev, d, &port->remote_dev_list, node) { + list_for_each_entry_safe(idev, d, &iport->remote_dev_list, node) { isci_remote_device_change_state(idev, isci_stopping); isci_remote_device_stop(ihost, idev); } @@ -442,7 +442,7 @@ int isci_host_init(struct isci_host *isci_host) return -ENOMEM; for (i = 0; i < SCI_MAX_PORTS; i++) - isci_port_init(&isci_host->isci_ports[i], isci_host, i); + isci_port_init(&isci_host->ports[i], isci_host, i); for (i = 0; i < SCI_MAX_PHYS; i++) isci_phy_init(&isci_host->phys[i], isci_host, i); diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index 00e4854e20d..5a414c31a87 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -84,12 +84,7 @@ struct isci_host { struct dma_pool *dma_pool; unsigned int dma_pool_alloc_size; struct isci_phy phys[SCI_MAX_PHYS]; - - /* isci_ports and sas_ports are implicitly parallel to the - * ports maintained by the core - */ - struct isci_port isci_ports[SCI_MAX_PORTS]; - struct asd_sas_port sas_ports[SCI_MAX_PORTS]; + struct isci_port ports[SCI_MAX_PORTS + 1]; /* includes dummy port */ struct sas_ha_struct sas_ha; int can_queue; diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index a5d5c0b97d0..522d39f9e13 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -221,8 +221,8 @@ static int isci_register_sas_ha(struct isci_host *isci_host) /* set the array of phy and port structs. */ for (i = 0; i < SCI_MAX_PHYS; i++) { - sas_phys[i] = &(isci_host->phys[i].sas_phy); - sas_ports[i] = &(isci_host->sas_ports[i]); + sas_phys[i] = &isci_host->phys[i].sas_phy; + sas_ports[i] = &isci_host->ports[i].sas_port; } sas_ha->sas_phy = sas_phys; diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 5e87fedb567..35e2e517f67 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -70,29 +70,30 @@ #include "request.h" #include "core/scic_sds_controller.h" -static void isci_port_change_state( - struct isci_port *isci_port, - enum isci_status status); +static void isci_port_change_state(struct isci_port *iport, enum isci_status status) +{ + unsigned long flags; + dev_dbg(&iport->isci_host->pdev->dev, + "%s: iport = %p, state = 0x%x\n", + __func__, iport, status); + /* XXX pointless lock */ + spin_lock_irqsave(&iport->state_lock, flags); + iport->status = status; + spin_unlock_irqrestore(&iport->state_lock, flags); +} void isci_port_init(struct isci_port *iport, struct isci_host *ihost, int index) { - struct scic_sds_port *sci_port; - INIT_LIST_HEAD(&iport->remote_dev_list); INIT_LIST_HEAD(&iport->domain_dev_list); spin_lock_init(&iport->state_lock); init_completion(&iport->start_complete); iport->isci_host = ihost; isci_port_change_state(iport, isci_freed); - - sci_port = &ihost->sci.port_table[index]; - iport->sci_port_handle = sci_port; - sci_port->iport = iport; } - /** * isci_port_get_state() - This function gets the status of the port object. * @isci_port: This parameter points to the isci_port object @@ -105,21 +106,6 @@ enum isci_status isci_port_get_state( return isci_port->status; } -static void isci_port_change_state( - struct isci_port *isci_port, - enum isci_status status) -{ - unsigned long flags; - - dev_dbg(&isci_port->isci_host->pdev->dev, - "%s: isci_port = %p, state = 0x%x\n", - __func__, isci_port, status); - - spin_lock_irqsave(&isci_port->state_lock, flags); - isci_port->status = status; - spin_unlock_irqrestore(&isci_port->state_lock, flags); -} - void isci_port_bc_change_received(struct isci_host *ihost, struct scic_sds_port *sci_port, struct scic_sds_phy *sci_phy) @@ -140,7 +126,7 @@ void isci_port_link_up(struct isci_host *isci_host, unsigned long flags; struct scic_port_properties properties; struct isci_phy *isci_phy = sci_phy_to_iphy(phy); - struct isci_port *isci_port = port->iport; + struct isci_port *isci_port = sci_port_to_iport(port); unsigned long success = true; BUG_ON(isci_phy->isci_port != NULL); @@ -346,8 +332,7 @@ int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *ipor spin_lock_irqsave(&ihost->scic_lock, flags); #define ISCI_PORT_RESET_TIMEOUT SCIC_SDS_SIGNATURE_FIS_TIMEOUT - status = scic_port_hard_reset(iport->sci_port_handle, - ISCI_PORT_RESET_TIMEOUT); + status = scic_port_hard_reset(&iport->sci, ISCI_PORT_RESET_TIMEOUT); spin_unlock_irqrestore(&ihost->scic_lock, flags); diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index ac1ac86ead6..355034542e4 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -53,19 +53,12 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -/** - * This file contains the isci_port object definition. - * - * port.h - */ - -#if !defined(_ISCI_PORT_H_) +#ifndef _ISCI_PORT_H_ #define _ISCI_PORT_H_ +#include "scic_sds_port.h" struct isci_phy; struct isci_host; -struct scic_sds_phy; - enum isci_status { isci_freed = 0x00, @@ -84,9 +77,6 @@ enum isci_status { * */ struct isci_port { - - struct scic_sds_port *sci_port_handle; - enum isci_status status; struct isci_host *isci_host; struct asd_sas_port sas_port; @@ -96,16 +86,19 @@ struct isci_port { struct completion start_complete; struct completion hard_reset_complete; enum sci_status hard_reset_status; + struct scic_sds_port sci; }; -#define to_isci_port(p) \ - container_of(p, struct isci_port, sas_port); +static inline struct isci_port *sci_port_to_iport(struct scic_sds_port *sci_port) +{ + struct isci_port *iport = container_of(sci_port, typeof(*iport), sci); + + return iport; +} enum isci_status isci_port_get_state( struct isci_port *isci_port); - - void isci_port_formed( struct asd_sas_phy *); diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index 734d028448b..a441c23b685 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -1264,7 +1264,7 @@ static enum sci_status scic_remote_device_start(struct scic_sds_remote_device *s static enum sci_status isci_remote_device_construct(struct isci_port *iport, struct isci_remote_device *idev) { - struct scic_sds_port *sci_port = iport->sci_port_handle; + struct scic_sds_port *sci_port = &iport->sci; struct isci_host *ihost = iport->isci_host; struct domain_device *dev = idev->domain_dev; enum sci_status status; diff --git a/drivers/scsi/isci/sci_environment.h b/drivers/scsi/isci/sci_environment.h index bb07ed31b51..1806969fc43 100644 --- a/drivers/scsi/isci/sci_environment.h +++ b/drivers/scsi/isci/sci_environment.h @@ -77,7 +77,7 @@ static inline struct device *sciphy_to_dev(struct scic_sds_phy *sci_phy) static inline struct device *sciport_to_dev(struct scic_sds_port *sci_port) { - struct isci_port *iport = sci_port->iport; + struct isci_port *iport = sci_port_to_iport(sci_port); if (!iport || !iport->isci_host) return NULL; -- cgit v1.2.3-70-g09d2 From ce2b3261b6765c3b80fda95426c73e8d3bb1b035 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Sun, 8 May 2011 15:49:15 -0700 Subject: isci: unify constants cross driver constants are spread out over multiple header files, consolidate them into isci.h, and push some includes out to the source files that need them. TODO: remove SCI_MODE_SIZE infrastructure. TODO: task.h is full of inlines that are too large Signed-off-by: Dan Williams --- drivers/scsi/isci/core/sci_controller.h | 69 --- drivers/scsi/isci/core/sci_controller_constants.h | 206 --------- drivers/scsi/isci/core/sci_status.h | 409 ------------------ drivers/scsi/isci/core/sci_util.c | 1 + drivers/scsi/isci/core/scic_config_parameters.h | 11 - drivers/scsi/isci/core/scic_controller.h | 8 - drivers/scsi/isci/core/scic_io_request.h | 8 - drivers/scsi/isci/core/scic_phy.h | 1 - drivers/scsi/isci/core/scic_port.h | 2 +- drivers/scsi/isci/core/scic_sds_controller.c | 2 +- drivers/scsi/isci/core/scic_sds_controller.h | 2 - drivers/scsi/isci/core/scic_sds_phy.c | 1 + drivers/scsi/isci/core/scic_sds_port.c | 1 + drivers/scsi/isci/core/scic_sds_port.h | 10 +- .../isci/core/scic_sds_port_configuration_agent.c | 8 +- drivers/scsi/isci/core/scic_sds_request.c | 3 +- drivers/scsi/isci/core/scic_sds_request.h | 2 +- drivers/scsi/isci/core/scic_sds_stp_request.c | 1 + .../isci/core/scic_sds_unsolicited_frame_control.h | 19 +- drivers/scsi/isci/core/scic_task_request.h | 11 +- drivers/scsi/isci/core/scu_constants.h | 151 ------- drivers/scsi/isci/host.c | 2 + drivers/scsi/isci/host.h | 18 +- drivers/scsi/isci/init.c | 2 +- drivers/scsi/isci/isci.h | 480 ++++++++++++++++++++- drivers/scsi/isci/phy.c | 2 +- drivers/scsi/isci/phy.h | 5 +- drivers/scsi/isci/port.h | 3 + drivers/scsi/isci/probe_roms.c | 1 - drivers/scsi/isci/probe_roms.h | 1 + drivers/scsi/isci/remote_device.h | 1 - drivers/scsi/isci/remote_node_table.h | 9 +- drivers/scsi/isci/request.c | 1 + drivers/scsi/isci/request.h | 1 + drivers/scsi/isci/sci_environment.h | 3 +- drivers/scsi/isci/task.c | 2 + drivers/scsi/isci/task.h | 1 + drivers/scsi/isci/timers.c | 1 + 38 files changed, 497 insertions(+), 962 deletions(-) delete mode 100644 drivers/scsi/isci/core/sci_controller.h delete mode 100644 drivers/scsi/isci/core/sci_controller_constants.h delete mode 100644 drivers/scsi/isci/core/sci_status.h delete mode 100644 drivers/scsi/isci/core/scu_constants.h (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/core/sci_controller.h b/drivers/scsi/isci/core/sci_controller.h deleted file mode 100644 index 01316b1a8f2..00000000000 --- a/drivers/scsi/isci/core/sci_controller.h +++ /dev/null @@ -1,69 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef _SCI_CONTROLLER_H_ -#define _SCI_CONTROLLER_H_ - -/** - * This file contains all of the interface methods that can be called by an SCI - * user on all SCI controller objects. - * - * - */ - -#define SCI_CONTROLLER_INVALID_IO_TAG 0xFFFF - -#endif /* _SCI_CONTROLLER_H_ */ - diff --git a/drivers/scsi/isci/core/sci_controller_constants.h b/drivers/scsi/isci/core/sci_controller_constants.h deleted file mode 100644 index 2525c26d7c0..00000000000 --- a/drivers/scsi/isci/core/sci_controller_constants.h +++ /dev/null @@ -1,206 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef _SCI_CONTROLLER_CONSTANTS_H_ -#define _SCI_CONTROLLER_CONSTANTS_H_ - -/** - * This file contains constant values that change based on the type of core or - * framework being managed. These constants are exported in order to - * provide the user with information as to the bounds (i.e. how many) of - * specific objects. - * - * - */ - -#ifndef SCI_MAX_PHYS -/** - * - * - * This constant defines the maximum number of phy objects that can be - * supported for the SCU Driver Standard (SDS) library. This is tied directly - * to silicon capabilities. - */ -#define SCI_MAX_PHYS (4) -#endif - -#ifndef SCI_MAX_PORTS -/** - * - * - * This constant defines the maximum number of port objects that can be - * supported for the SCU Driver Standard (SDS) library. This is tied directly - * to silicon capabilities. - */ -#define SCI_MAX_PORTS SCI_MAX_PHYS -#endif - -#ifndef SCI_MIN_SMP_PHYS -/** - * - * - * This constant defines the minimum number of SMP phy objects that can be - * supported for a single expander level. This was determined by using 36 - * physical phys and room for 2 virtual phys. - */ -#define SCI_MIN_SMP_PHYS (38) -#endif - -#ifndef SCI_MAX_SMP_PHYS -/** - * - * - * This constant defines the maximum number of SMP phy objects that can be - * supported for the SCU Driver Standard (SDS) library. This number can be - * increased if required. - */ -#define SCI_MAX_SMP_PHYS (384) -#endif - -#ifndef SCI_MAX_REMOTE_DEVICES -/** - * - * - * This constant defines the maximum number of remote device objects that can - * be supported for the SCU Driver Standard (SDS) library. This is tied - * directly to silicon capabilities. - */ -#define SCI_MAX_REMOTE_DEVICES (256) -#endif - -#ifndef SCI_MIN_REMOTE_DEVICES -/** - * - * - * This constant defines the minimum number of remote device objects that can - * be supported for the SCU Driver Standard (SDS) library. This # can be - * configured for minimum memory environments to any value less than - * SCI_MAX_REMOTE_DEVICES - */ -#define SCI_MIN_REMOTE_DEVICES (16) -#endif - -#ifndef SCI_MAX_IO_REQUESTS -/** - * - * - * This constant defines the maximum number of IO request objects that can be - * supported for the SCU Driver Standard (SDS) library. This is tied directly - * to silicon capabilities. - */ -#define SCI_MAX_IO_REQUESTS (256) -#endif - -#ifndef SCI_MIN_IO_REQUESTS -/** - * - * - * This constant defines the minimum number of IO request objects that can be - * supported for the SCU Driver Standard (SDS) library. This # can be - * configured for minimum memory environments to any value less than - * SCI_MAX_IO_REQUESTS. - */ -#define SCI_MIN_IO_REQUESTS (1) -#endif - -#ifndef SCI_MAX_MSIX_MESSAGES -/** - * - * - * This constant defines the maximum number of MSI-X interrupt vectors/messages - * supported for an SCU hardware controller instance. - */ -#define SCI_MAX_MSIX_MESSAGES (2) -#endif - -#ifndef SCI_MAX_SCATTER_GATHER_ELEMENTS -/** - * - * - * This constant defines the maximum number of Scatter-Gather Elements to be - * used by any SCI component. - */ -#define SCI_MAX_SCATTER_GATHER_ELEMENTS 130 -#endif - -#ifndef SCI_MIN_SCATTER_GATHER_ELEMENTS -/** - * - * - * This constant defines the minimum number of Scatter-Gather Elements to be - * used by any SCI component. - */ -#define SCI_MIN_SCATTER_GATHER_ELEMENTS 1 -#endif - -/** - * - * - * This constant defines the maximum number of controllers that can occur in a - * single silicon package. - */ -#define SCI_MAX_CONTROLLERS 2 - -/** - * - * - * The maximum number of supported domain objects is currently tied to the - * maximum number of support port objects. - */ -#define SCI_MAX_DOMAINS SCI_MAX_PORTS - - -#endif /* _SCI_CONTROLLER_CONSTANTS_H_ */ - diff --git a/drivers/scsi/isci/core/sci_status.h b/drivers/scsi/isci/core/sci_status.h deleted file mode 100644 index 8b66619022c..00000000000 --- a/drivers/scsi/isci/core/sci_status.h +++ /dev/null @@ -1,409 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef _SCI_STATUS_H_ -#define _SCI_STATUS_H_ - -/** - * This file contains all of the return status codes utilized across the - * various sub-components in SCI. - * - * - */ - - -/** - * enum sci_status - This is the general return status enumeration for non-IO, - * non-task management related SCI interface methods. - * - * - */ -enum sci_status { - /** - * This member indicates successful completion. - */ - SCI_SUCCESS = 0, - - /** - * This value indicates that the calling method completed successfully, - * but that the IO may have completed before having it's start method - * invoked. This occurs during SAT translation for requests that do - * not require an IO to the target or for any other requests that may - * be completed without having to submit IO. - */ - SCI_SUCCESS_IO_COMPLETE_BEFORE_START, - - /** - * This Value indicates that the SCU hardware returned an early response - * because the io request specified more data than is returned by the - * target device (mode pages, inquiry data, etc.). The completion routine - * will handle this case to get the actual number of bytes transferred. - */ - SCI_SUCCESS_IO_DONE_EARLY, - - /** - * This member indicates that the object for which a state change is - * being requested is already in said state. - */ - SCI_WARNING_ALREADY_IN_STATE, - - /** - * This member indicates interrupt coalescence timer may cause SAS - * specification compliance issues (i.e. SMP target mode response - * frames must be returned within 1.9 milliseconds). - */ - SCI_WARNING_TIMER_CONFLICT, - - /** - * This field indicates a sequence of action is not completed yet. Mostly, - * this status is used when multiple ATA commands are needed in a SATI translation. - */ - SCI_WARNING_SEQUENCE_INCOMPLETE, - - /** - * This member indicates that there was a general failure. - */ - SCI_FAILURE, - - /** - * This member indicates that the SCI implementation is unable to complete - * an operation due to a critical flaw the prevents any further operation - * (i.e. an invalid pointer). - */ - SCI_FATAL_ERROR, - - /** - * This member indicates the calling function failed, because the state - * of the controller is in a state that prevents successful completion. - */ - SCI_FAILURE_INVALID_STATE, - - /** - * This member indicates the calling function failed, because there is - * insufficient resources/memory to complete the request. - */ - SCI_FAILURE_INSUFFICIENT_RESOURCES, - - /** - * This member indicates the calling function failed, because the - * controller object required for the operation can't be located. - */ - SCI_FAILURE_CONTROLLER_NOT_FOUND, - - /** - * This member indicates the calling function failed, because the - * discovered controller type is not supported by the library. - */ - SCI_FAILURE_UNSUPPORTED_CONTROLLER_TYPE, - - /** - * This member indicates the calling function failed, because the - * requested initialization data version isn't supported. - */ - SCI_FAILURE_UNSUPPORTED_INIT_DATA_VERSION, - - /** - * This member indicates the calling function failed, because the - * requested configuration of SAS Phys into SAS Ports is not supported. - */ - SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION, - - /** - * This member indicates the calling function failed, because the - * requested protocol is not supported by the remote device, port, - * or controller. - */ - SCI_FAILURE_UNSUPPORTED_PROTOCOL, - - /** - * This member indicates the calling function failed, because the - * requested information type is not supported by the SCI implementation. - */ - SCI_FAILURE_UNSUPPORTED_INFORMATION_TYPE, - - /** - * This member indicates the calling function failed, because the - * device already exists. - */ - SCI_FAILURE_DEVICE_EXISTS, - - /** - * This member indicates the calling function failed, because adding - * a phy to the object is not possible. - */ - SCI_FAILURE_ADDING_PHY_UNSUPPORTED, - - /** - * This member indicates the calling function failed, because the - * requested information type is not supported by the SCI implementation. - */ - SCI_FAILURE_UNSUPPORTED_INFORMATION_FIELD, - - /** - * This member indicates the calling function failed, because the SCI - * implementation does not support the supplied time limit. - */ - SCI_FAILURE_UNSUPPORTED_TIME_LIMIT, - - /** - * This member indicates the calling method failed, because the SCI - * implementation does not contain the specified Phy. - */ - SCI_FAILURE_INVALID_PHY, - - /** - * This member indicates the calling method failed, because the SCI - * implementation does not contain the specified Port. - */ - SCI_FAILURE_INVALID_PORT, - - /** - * This member indicates the calling method was partly successful - * The port was reset but not all phys in port are operational - */ - SCI_FAILURE_RESET_PORT_PARTIAL_SUCCESS, - - /** - * This member indicates that calling method failed - * The port reset did not complete because none of the phys are operational - */ - SCI_FAILURE_RESET_PORT_FAILURE, - - /** - * This member indicates the calling method failed, because the SCI - * implementation does not contain the specified remote device. - */ - SCI_FAILURE_INVALID_REMOTE_DEVICE, - - /** - * This member indicates the calling method failed, because the remote - * device is in a bad state and requires a reset. - */ - SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED, - - /** - * This member indicates the calling method failed, because the SCI - * implementation does not contain or support the specified IO tag. - */ - SCI_FAILURE_INVALID_IO_TAG, - - /** - * This member indicates that the operation failed and the user should - * check the response data associated with the IO. - */ - SCI_FAILURE_IO_RESPONSE_VALID, - - /** - * This member indicates that the operation failed, the failure is - * controller implementation specific, and the response data associated - * with the request is not valid. You can query for the controller - * specific error information via scic_controller_get_request_status() - */ - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR, - - /** - * This member indicated that the operation failed because the - * user requested this IO to be terminated. - */ - SCI_FAILURE_IO_TERMINATED, - - /** - * This member indicates that the operation failed and the associated - * request requires a SCSI abort task to be sent to the target. - */ - SCI_FAILURE_IO_REQUIRES_SCSI_ABORT, - - /** - * This member indicates that the operation failed because the supplied - * device could not be located. - */ - SCI_FAILURE_DEVICE_NOT_FOUND, - - /** - * This member indicates that the operation failed because the - * objects association is required and is not correctly set. - */ - SCI_FAILURE_INVALID_ASSOCIATION, - - /** - * This member indicates that the operation failed, because a timeout - * occurred. - */ - SCI_FAILURE_TIMEOUT, - - /** - * This member indicates that the operation failed, because the user - * specified a value that is either invalid or not supported. - */ - SCI_FAILURE_INVALID_PARAMETER_VALUE, - - /** - * This value indicates that the operation failed, because the number - * of messages (MSI-X) is not supported. - */ - SCI_FAILURE_UNSUPPORTED_MESSAGE_COUNT, - - /** - * This value indicates that the method failed due to a lack of - * available NCQ tags. - */ - SCI_FAILURE_NO_NCQ_TAG_AVAILABLE, - - /** - * This value indicates that a protocol violation has occurred on the - * link. - */ - SCI_FAILURE_PROTOCOL_VIOLATION, - - /** - * This value indicates a failure condition that retry may help to clear. - */ - SCI_FAILURE_RETRY_REQUIRED, - - /** - * This field indicates the retry limit was reached when a retry is attempted - */ - SCI_FAILURE_RETRY_LIMIT_REACHED, - - /** - * This member indicates the calling method was partly successful. - * Mostly, this status is used when a LUN_RESET issued to an expander attached - * STP device in READY NCQ substate needs to have RNC suspended/resumed - * before posting TC. - */ - SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS, - - /** - * This field indicates an illegal phy connection based on the routing attribute - * of both expander phy attached to each other. - */ - SCI_FAILURE_ILLEGAL_ROUTING_ATTRIBUTE_CONFIGURATION, - - /** - * This field indicates a CONFIG ROUTE INFO command has a response with function result - * INDEX DOES NOT EXIST, usually means exceeding max route index. - */ - SCI_FAILURE_EXCEED_MAX_ROUTE_INDEX, - - /** - * This value indicates that an unsupported PCI device ID has been - * specified. This indicates that attempts to invoke - * scic_library_allocate_controller() will fail. - */ - SCI_FAILURE_UNSUPPORTED_PCI_DEVICE_ID - -}; - -/** - * enum sci_io_status - This enumeration depicts all of the possible IO - * completion status values. Each value in this enumeration maps directly - * to a value in the enum sci_status enumeration. Please refer to that - * enumeration for detailed comments concerning what the status represents. - * - * Add the API to retrieve the SCU status from the core. Check to see that the - * following status are properly handled: - SCI_IO_FAILURE_UNSUPPORTED_PROTOCOL - * - SCI_IO_FAILURE_INVALID_IO_TAG - */ -enum sci_io_status { - SCI_IO_SUCCESS = SCI_SUCCESS, - SCI_IO_FAILURE = SCI_FAILURE, - SCI_IO_SUCCESS_COMPLETE_BEFORE_START = SCI_SUCCESS_IO_COMPLETE_BEFORE_START, - SCI_IO_SUCCESS_IO_DONE_EARLY = SCI_SUCCESS_IO_DONE_EARLY, - SCI_IO_FAILURE_INVALID_STATE = SCI_FAILURE_INVALID_STATE, - SCI_IO_FAILURE_INSUFFICIENT_RESOURCES = SCI_FAILURE_INSUFFICIENT_RESOURCES, - SCI_IO_FAILURE_UNSUPPORTED_PROTOCOL = SCI_FAILURE_UNSUPPORTED_PROTOCOL, - SCI_IO_FAILURE_RESPONSE_VALID = SCI_FAILURE_IO_RESPONSE_VALID, - SCI_IO_FAILURE_CONTROLLER_SPECIFIC_ERR = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR, - SCI_IO_FAILURE_TERMINATED = SCI_FAILURE_IO_TERMINATED, - SCI_IO_FAILURE_REQUIRES_SCSI_ABORT = SCI_FAILURE_IO_REQUIRES_SCSI_ABORT, - SCI_IO_FAILURE_INVALID_PARAMETER_VALUE = SCI_FAILURE_INVALID_PARAMETER_VALUE, - SCI_IO_FAILURE_NO_NCQ_TAG_AVAILABLE = SCI_FAILURE_NO_NCQ_TAG_AVAILABLE, - SCI_IO_FAILURE_PROTOCOL_VIOLATION = SCI_FAILURE_PROTOCOL_VIOLATION, - - SCI_IO_FAILURE_REMOTE_DEVICE_RESET_REQUIRED = SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED, - - SCI_IO_FAILURE_RETRY_REQUIRED = SCI_FAILURE_RETRY_REQUIRED, - SCI_IO_FAILURE_RETRY_LIMIT_REACHED = SCI_FAILURE_RETRY_LIMIT_REACHED, - SCI_IO_FAILURE_INVALID_REMOTE_DEVICE = SCI_FAILURE_INVALID_REMOTE_DEVICE -}; - -/** - * enum sci_task_status - This enumeration depicts all of the possible task - * completion status values. Each value in this enumeration maps directly - * to a value in the enum sci_status enumeration. Please refer to that - * enumeration for detailed comments concerning what the status represents. - * - * Check to see that the following status are properly handled: - */ -enum sci_task_status { - SCI_TASK_SUCCESS = SCI_SUCCESS, - SCI_TASK_FAILURE = SCI_FAILURE, - SCI_TASK_FAILURE_INVALID_STATE = SCI_FAILURE_INVALID_STATE, - SCI_TASK_FAILURE_INSUFFICIENT_RESOURCES = SCI_FAILURE_INSUFFICIENT_RESOURCES, - SCI_TASK_FAILURE_UNSUPPORTED_PROTOCOL = SCI_FAILURE_UNSUPPORTED_PROTOCOL, - SCI_TASK_FAILURE_INVALID_TAG = SCI_FAILURE_INVALID_IO_TAG, - SCI_TASK_FAILURE_RESPONSE_VALID = SCI_FAILURE_IO_RESPONSE_VALID, - SCI_TASK_FAILURE_CONTROLLER_SPECIFIC_ERR = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR, - SCI_TASK_FAILURE_TERMINATED = SCI_FAILURE_IO_TERMINATED, - SCI_TASK_FAILURE_INVALID_PARAMETER_VALUE = SCI_FAILURE_INVALID_PARAMETER_VALUE, - - SCI_TASK_FAILURE_REMOTE_DEVICE_RESET_REQUIRED = SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED, - SCI_TASK_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS = SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS - -}; - - -#endif /* _SCI_STATUS_H_ */ - diff --git a/drivers/scsi/isci/core/sci_util.c b/drivers/scsi/isci/core/sci_util.c index 4e60d55836e..0101fec2386 100644 --- a/drivers/scsi/isci/core/sci_util.c +++ b/drivers/scsi/isci/core/sci_util.c @@ -56,6 +56,7 @@ #include #include "sci_util.h" #include "sci_environment.h" +#include "request.h" void *scic_request_get_virt_addr(struct scic_sds_request *sci_req, dma_addr_t phys_addr) { diff --git a/drivers/scsi/isci/core/scic_config_parameters.h b/drivers/scsi/isci/core/scic_config_parameters.h index ea09d0bd2d1..8b8c9259f52 100644 --- a/drivers/scsi/isci/core/scic_config_parameters.h +++ b/drivers/scsi/isci/core/scic_config_parameters.h @@ -56,17 +56,6 @@ #ifndef _SCIC_SDS_USER_PARAMETERS_H_ #define _SCIC_SDS_USER_PARAMETERS_H_ -/** - * This file contains all of the structure definitions and interface methods - * that can be called by a SCIC user on the SCU Driver Standard - * (struct scic_sds_user_parameters) user parameter block. - * - * - */ - - -#include "sci_status.h" -#include "sci_controller_constants.h" #include "probe_roms.h" struct scic_sds_controller; diff --git a/drivers/scsi/isci/core/scic_controller.h b/drivers/scsi/isci/core/scic_controller.h index 50ba155a6c7..bd08f306ed6 100644 --- a/drivers/scsi/isci/core/scic_controller.h +++ b/drivers/scsi/isci/core/scic_controller.h @@ -56,8 +56,6 @@ #ifndef _SCIC_CONTROLLER_H_ #define _SCIC_CONTROLLER_H_ -#include "sci_status.h" -#include "sci_controller.h" #include "scic_config_parameters.h" struct scic_sds_request; @@ -65,12 +63,6 @@ struct scic_sds_phy; struct scic_sds_port; struct scic_sds_remote_device; - -enum sci_controller_mode { - SCI_MODE_SPEED, /* Optimized for performance */ - SCI_MODE_SIZE /* Optimized for memory use */ -}; - enum sci_status scic_controller_construct(struct scic_sds_controller *c, void __iomem *scu_base, void __iomem *smu_base); diff --git a/drivers/scsi/isci/core/scic_io_request.h b/drivers/scsi/isci/core/scic_io_request.h index f7c6d426f8c..a4664cc3c57 100644 --- a/drivers/scsi/isci/core/scic_io_request.h +++ b/drivers/scsi/isci/core/scic_io_request.h @@ -56,15 +56,7 @@ #ifndef _SCIC_IO_REQUEST_H_ #define _SCIC_IO_REQUEST_H_ -/** - * This file contains the structures and interface methods that can be - * referenced and used by the SCI user for the SCI IO request object. - * - * Determine the failure situations and return values. - */ - #include -#include "sci_status.h" struct scic_sds_request; struct scic_sds_remote_device; diff --git a/drivers/scsi/isci/core/scic_phy.h b/drivers/scsi/isci/core/scic_phy.h index 1fb49f02162..f046b4af4b8 100644 --- a/drivers/scsi/isci/core/scic_phy.h +++ b/drivers/scsi/isci/core/scic_phy.h @@ -66,7 +66,6 @@ #include #include -#include "sci_status.h" struct scic_sds_phy; struct scic_sds_port; diff --git a/drivers/scsi/isci/core/scic_port.h b/drivers/scsi/isci/core/scic_port.h index 44a8ea88715..51e7eede5c8 100644 --- a/drivers/scsi/isci/core/scic_port.h +++ b/drivers/scsi/isci/core/scic_port.h @@ -56,8 +56,8 @@ #ifndef _SCIC_PORT_H_ #define _SCIC_PORT_H_ +#include "isci.h" #include "sas.h" -#include "sci_status.h" #include "scic_phy.h" struct scic_sds_port; diff --git a/drivers/scsi/isci/core/scic_sds_controller.c b/drivers/scsi/isci/core/scic_sds_controller.c index 852b7d52f84..e77265b9b9e 100644 --- a/drivers/scsi/isci/core/scic_sds_controller.c +++ b/drivers/scsi/isci/core/scic_sds_controller.c @@ -68,11 +68,11 @@ #include "sci_environment.h" #include "sci_util.h" #include "scu_completion_codes.h" -#include "scu_constants.h" #include "scu_event_codes.h" #include "scu_remote_node_context.h" #include "scu_task_context.h" #include "scu_unsolicited_frame.h" +#include "timers.h" #define SCU_CONTEXT_RAM_INIT_STALL_TIME 200 diff --git a/drivers/scsi/isci/core/scic_sds_controller.h b/drivers/scsi/isci/core/scic_sds_controller.h index 0d5047319cb..5c00f9688c1 100644 --- a/drivers/scsi/isci/core/scic_sds_controller.h +++ b/drivers/scsi/isci/core/scic_sds_controller.h @@ -67,7 +67,6 @@ */ #include "sci_pool.h" -#include "sci_controller_constants.h" #include "sci_base_state.h" #include "sci_base_state_machine.h" #include "scic_config_parameters.h" @@ -76,7 +75,6 @@ #include "remote_node_table.h" #include "remote_device.h" #include "scu_registers.h" -#include "scu_constants.h" #include "scu_task_context.h" #include "scu_unsolicited_frame.h" #include "scic_sds_unsolicited_frame_control.h" diff --git a/drivers/scsi/isci/core/scic_sds_phy.c b/drivers/scsi/isci/core/scic_sds_phy.c index f0f4c74e461..c6df0e2c842 100644 --- a/drivers/scsi/isci/core/scic_sds_phy.c +++ b/drivers/scsi/isci/core/scic_sds_phy.c @@ -65,6 +65,7 @@ #include "sci_environment.h" #include "sci_util.h" #include "scu_event_codes.h" +#include "timers.h" #define SCIC_SDS_PHY_MIN_TIMER_COUNT (SCI_MAX_PHYS) #define SCIC_SDS_PHY_MAX_TIMER_COUNT (SCI_MAX_PHYS) diff --git a/drivers/scsi/isci/core/scic_sds_port.c b/drivers/scsi/isci/core/scic_sds_port.c index 01288dd44fb..9302e397e4c 100644 --- a/drivers/scsi/isci/core/scic_sds_port.c +++ b/drivers/scsi/isci/core/scic_sds_port.c @@ -64,6 +64,7 @@ #include "scic_sds_request.h" #include "sci_environment.h" #include "scu_registers.h" +#include "timers.h" #define SCIC_SDS_PORT_MIN_TIMER_COUNT (SCI_MAX_PORTS) #define SCIC_SDS_PORT_MAX_TIMER_COUNT (SCI_MAX_PORTS) diff --git a/drivers/scsi/isci/core/scic_sds_port.h b/drivers/scsi/isci/core/scic_sds_port.h index 3633561b686..3696debcce1 100644 --- a/drivers/scsi/isci/core/scic_sds_port.h +++ b/drivers/scsi/isci/core/scic_sds_port.h @@ -58,21 +58,15 @@ #include #include "sas.h" -#include "sci_controller_constants.h" #include "scu_registers.h" - -#define SCIC_SDS_DUMMY_PORT 0xFF +#include "sci_base_state_machine.h" struct scic_sds_controller; struct scic_sds_phy; struct scic_sds_remote_device; struct scic_sds_request; -/** - * This constant defines the value utilized by SCI Components to indicate - * an invalid handle. - */ -#define SCI_INVALID_HANDLE 0x0 +#define SCIC_SDS_DUMMY_PORT 0xFF /** * enum SCIC_SDS_PORT_READY_SUBSTATES - diff --git a/drivers/scsi/isci/core/scic_sds_port_configuration_agent.c b/drivers/scsi/isci/core/scic_sds_port_configuration_agent.c index 2d3d067396d..3fad8c1db6c 100644 --- a/drivers/scsi/isci/core/scic_sds_port_configuration_agent.c +++ b/drivers/scsi/isci/core/scic_sds_port_configuration_agent.c @@ -53,17 +53,11 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -/** - * This file contains the implementation for the public and protected methods - * for the port configuration agent. - * - * - */ - #include "sci_environment.h" #include "scic_controller.h" #include "scic_sds_controller.h" #include "scic_sds_port_configuration_agent.h" +#include "timers.h" #define SCIC_SDS_MPC_RECONFIGURATION_TIMEOUT (10) #define SCIC_SDS_APC_RECONFIGURATION_TIMEOUT (10) diff --git a/drivers/scsi/isci/core/scic_sds_request.c b/drivers/scsi/isci/core/scic_sds_request.c index 50dd19bba3d..de35885eb1f 100644 --- a/drivers/scsi/isci/core/scic_sds_request.c +++ b/drivers/scsi/isci/core/scic_sds_request.c @@ -67,8 +67,9 @@ #include "sci_environment.h" #include "sci_util.h" #include "scu_completion_codes.h" -#include "scu_constants.h" #include "scu_task_context.h" +#include "request.h" +#include "task.h" /* * **************************************************************************** diff --git a/drivers/scsi/isci/core/scic_sds_request.h b/drivers/scsi/isci/core/scic_sds_request.h index 1dd98aabe32..5ce7ff2aed9 100644 --- a/drivers/scsi/isci/core/scic_sds_request.h +++ b/drivers/scsi/isci/core/scic_sds_request.h @@ -56,11 +56,11 @@ #ifndef _SCIC_SDS_IO_REQUEST_H_ #define _SCIC_SDS_IO_REQUEST_H_ +#include "isci.h" #include "scic_io_request.h" #include "sci_base_state_machine.h" #include "scu_task_context.h" #include "scic_sds_stp_request.h" -#include "scu_constants.h" #include "sas.h" struct scic_sds_controller; diff --git a/drivers/scsi/isci/core/scic_sds_stp_request.c b/drivers/scsi/isci/core/scic_sds_stp_request.c index 2677393db6f..c1c316cad52 100644 --- a/drivers/scsi/isci/core/scic_sds_stp_request.c +++ b/drivers/scsi/isci/core/scic_sds_stp_request.c @@ -69,6 +69,7 @@ #include "scu_completion_codes.h" #include "scu_event_codes.h" #include "scu_task_context.h" +#include "request.h" void scic_sds_stp_request_assign_buffers(struct scic_sds_request *sci_req) { diff --git a/drivers/scsi/isci/core/scic_sds_unsolicited_frame_control.h b/drivers/scsi/isci/core/scic_sds_unsolicited_frame_control.h index 4eb244c06cf..0d8ca8c4770 100644 --- a/drivers/scsi/isci/core/scic_sds_unsolicited_frame_control.h +++ b/drivers/scsi/isci/core/scic_sds_unsolicited_frame_control.h @@ -53,19 +53,11 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -/** - * This file contains all of the unsolicited frame related management for the - * address table, the headers, and actual payload buffers. - * - * - */ - #ifndef _SCIC_SDS_UNSOLICITED_FRAME_CONTROL_H_ #define _SCIC_SDS_UNSOLICITED_FRAME_CONTROL_H_ +#include "isci.h" #include "scu_unsolicited_frame.h" -#include "scu_constants.h" -#include "sci_status.h" /** * enum unsolicited_frame_state - @@ -144,15 +136,6 @@ struct scic_sds_uf_header_array { }; -/* - * Determine the size of the unsolicited frame array including - * unused buffers. */ -#if SCU_UNSOLICITED_FRAME_COUNT <= SCU_MIN_UF_TABLE_ENTRIES -#define SCU_UNSOLICITED_FRAME_CONTROL_ARRAY_SIZE SCU_MIN_UF_TABLE_ENTRIES -#else -#define SCU_UNSOLICITED_FRAME_CONTROL_ARRAY_SIZE SCU_MAX_UNSOLICITED_FRAMES -#endif /* SCU_UNSOLICITED_FRAME_COUNT <= SCU_MIN_UF_TABLE_ENTRIES */ - /** * struct scic_sds_uf_buffer_array - * diff --git a/drivers/scsi/isci/core/scic_task_request.h b/drivers/scsi/isci/core/scic_task_request.h index 98cfaa9e6d3..790cee9b4af 100644 --- a/drivers/scsi/isci/core/scic_task_request.h +++ b/drivers/scsi/isci/core/scic_task_request.h @@ -56,16 +56,7 @@ #ifndef _SCIC_TASK_REQUEST_H_ #define _SCIC_TASK_REQUEST_H_ -/** - * This file contains the structures and interface methods that can be - * referenced and used by the SCI user for to utilize task management - * requests. - * - * - */ - - -#include "sci_status.h" +#include "isci.h" struct scic_sds_request; struct scic_sds_remote_device; diff --git a/drivers/scsi/isci/core/scu_constants.h b/drivers/scsi/isci/core/scu_constants.h deleted file mode 100644 index a99d1103ad3..00000000000 --- a/drivers/scsi/isci/core/scu_constants.h +++ /dev/null @@ -1,151 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef _SCU_CONSTANTS_H_ -#define _SCU_CONSTANTS_H_ - -/** - * This file contains the SCU hardware constants. - * - * - */ - -#include "sci_controller_constants.h" - -/** - * - * - * 2 indicates the maximum number of UFs that can occur for a given IO request. - * The hardware handles reception of additional unsolicited frames while all - * UFs are in use, by holding off the transmitting device. This number could - * be theoretically reduced to 1, but 2 provides for more reliable operation. - * During SATA PIO operation, it is possible under some conditions for there to - * be 3 separate FISes received, back to back to back (PIO Setup, Data, D2H - * Register). It is unlikely to have all 3 pending all at once without some of - * them already being processed. - */ -#define SCU_MIN_UNSOLICITED_FRAMES (1) -#define SCU_MIN_CRITICAL_NOTIFICATIONS (24) -#define SCU_MIN_EVENTS (4) -#define SCU_MIN_COMPLETION_QUEUE_SCRATCH (2) -#define SCU_MIN_COMPLETION_QUEUE_ENTRIES (SCU_MIN_CRITICAL_NOTIFICATIONS \ - + SCU_MIN_EVENTS \ - + SCU_MIN_UNSOLICITED_FRAMES \ - + SCI_MIN_IO_REQUESTS \ - + SCU_MIN_COMPLETION_QUEUE_SCRATCH) - -#define SCU_MAX_CRITICAL_NOTIFICATIONS (384) -#define SCU_MAX_EVENTS (128) -#define SCU_MAX_UNSOLICITED_FRAMES (128) -#define SCU_MAX_COMPLETION_QUEUE_SCRATCH (128) -#define SCU_MAX_COMPLETION_QUEUE_ENTRIES (SCU_MAX_CRITICAL_NOTIFICATIONS \ - + SCU_MAX_EVENTS \ - + SCU_MAX_UNSOLICITED_FRAMES \ - + SCI_MAX_IO_REQUESTS \ - + SCU_MAX_COMPLETION_QUEUE_SCRATCH) - -#if !defined(ENABLE_MINIMUM_MEMORY_MODE) -#define SCU_UNSOLICITED_FRAME_COUNT SCU_MAX_UNSOLICITED_FRAMES -#define SCU_CRITICAL_NOTIFICATION_COUNT SCU_MAX_CRITICAL_NOTIFICATIONS -#define SCU_EVENT_COUNT SCU_MAX_EVENTS -#define SCU_COMPLETION_QUEUE_SCRATCH SCU_MAX_COMPLETION_QUEUE_SCRATCH -#define SCU_IO_REQUEST_COUNT SCI_MAX_IO_REQUESTS -#define SCU_IO_REQUEST_SGE_COUNT SCI_MAX_SCATTER_GATHER_ELEMENTS -#define SCU_COMPLETION_QUEUE_COUNT SCU_MAX_COMPLETION_QUEUE_ENTRIES -#else -#define SCU_UNSOLICITED_FRAME_COUNT SCU_MIN_UNSOLICITED_FRAMES -#define SCU_CRITICAL_NOTIFICATION_COUNT SCU_MIN_CRITICAL_NOTIFICATIONS -#define SCU_EVENT_COUNT SCU_MIN_EVENTS -#define SCU_COMPLETION_QUEUE_SCRATCH SCU_MIN_COMPLETION_QUEUE_SCRATCH -#define SCU_IO_REQUEST_COUNT SCI_MIN_IO_REQUESTS -#define SCU_IO_REQUEST_SGE_COUNT SCI_MIN_SCATTER_GATHER_ELEMENTS -#define SCU_COMPLETION_QUEUE_COUNT SCU_MIN_COMPLETION_QUEUE_ENTRIES -#endif /* !defined(ENABLE_MINIMUM_MEMORY_OPERATION) */ - -/** - * - * - * The SCU_COMPLETION_QUEUE_COUNT constant indicates the size of the completion - * queue into which the hardware DMAs 32-bit quantas (completion entries). - */ - -/** - * - * - * This queue must be programmed to a power of 2 size (e.g. 32, 64, 1024, etc.). - */ -#if (SCU_COMPLETION_QUEUE_COUNT != 16) && \ - (SCU_COMPLETION_QUEUE_COUNT != 32) && \ - (SCU_COMPLETION_QUEUE_COUNT != 64) && \ - (SCU_COMPLETION_QUEUE_COUNT != 128) && \ - (SCU_COMPLETION_QUEUE_COUNT != 256) && \ - (SCU_COMPLETION_QUEUE_COUNT != 512) && \ - (SCU_COMPLETION_QUEUE_COUNT != 1024) -#error "SCU_COMPLETION_QUEUE_COUNT must be set to a power of 2." -#endif - -#if SCU_MIN_UNSOLICITED_FRAMES > SCU_MAX_UNSOLICITED_FRAMES -#error "Invalid configuration of unsolicited frame constants" -#endif /* SCU_MIN_UNSOLICITED_FRAMES > SCU_MAX_UNSOLICITED_FRAMES */ - -#define SCU_MIN_UF_TABLE_ENTRIES (8) -#define SCU_ABSOLUTE_MAX_UNSOLICITED_FRAMES (4096) -#define SCU_UNSOLICITED_FRAME_BUFFER_SIZE (1024) -#define SCU_INVALID_FRAME_INDEX (0xFFFF) - -#define SCU_IO_REQUEST_MAX_SGE_SIZE (0x00FFFFFF) -#define SCU_IO_REQUEST_MAX_TRANSFER_LENGTH (0x00FFFFFF) - -#endif /* _SCU_CONSTANTS_H_ */ diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index 271a7e171e7..5847149857a 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -60,7 +60,9 @@ #include "request.h" #include "host.h" #include "probe_roms.h" +#include "scic_controller.h" #include "scic_sds_controller.h" +#include "timers.h" irqreturn_t isci_msix_isr(int vec, void *data) { diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index afa41e83eaa..13c1c99ef29 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -53,26 +53,12 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - -#if !defined(_SCI_HOST_H_) +#ifndef _SCI_HOST_H_ #define _SCI_HOST_H_ -#include "phy.h" #include "scic_sds_controller.h" -#include "timers.h" #include "remote_device.h" - -#define DRV_NAME "isci" -#define SCI_PCI_BAR_COUNT 2 -#define SCI_NUM_MSI_X_INT 2 -#define SCI_SMU_BAR 0 -#define SCI_SMU_BAR_SIZE (16*1024) -#define SCI_SCU_BAR 1 -#define SCI_SCU_BAR_SIZE (4*1024*1024) -#define SCI_IO_SPACE_BAR0 2 -#define SCI_IO_SPACE_BAR1 3 -#define ISCI_CAN_QUEUE_VAL 250 /* < SCI_MAX_IO_REQUESTS ? */ -#define SCIC_CONTROLLER_STOP_TIMEOUT 5000 +#include "phy.h" struct isci_host { struct scic_sds_controller sci; diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index 522d39f9e13..df132c07bad 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -61,9 +61,9 @@ #include #include "isci.h" #include "task.h" -#include "sci_controller_constants.h" #include "sci_environment.h" #include "probe_roms.h" +#include "scic_controller.h" static struct scsi_transport_template *isci_transport_template; diff --git a/drivers/scsi/isci/isci.h b/drivers/scsi/isci/isci.h index 60c84627c13..800f2332ecd 100644 --- a/drivers/scsi/isci/isci.h +++ b/drivers/scsi/isci/isci.h @@ -56,22 +56,470 @@ #ifndef __ISCI_H__ #define __ISCI_H__ -#include -#include -#include -#include #include -#include -#include -#include - -#include "scic_controller.h" -#include "host.h" -#include "timers.h" -#include "sci_status.h" -#include "request.h" -#include "task.h" -#include "sata.h" + +#define DRV_NAME "isci" +#define SCI_PCI_BAR_COUNT 2 +#define SCI_NUM_MSI_X_INT 2 +#define SCI_SMU_BAR 0 +#define SCI_SMU_BAR_SIZE (16*1024) +#define SCI_SCU_BAR 1 +#define SCI_SCU_BAR_SIZE (4*1024*1024) +#define SCI_IO_SPACE_BAR0 2 +#define SCI_IO_SPACE_BAR1 3 +#define ISCI_CAN_QUEUE_VAL 250 /* < SCI_MAX_IO_REQUESTS ? */ +#define SCIC_CONTROLLER_STOP_TIMEOUT 5000 + +#define SCI_CONTROLLER_INVALID_IO_TAG 0xFFFF + +enum sci_controller_mode { + SCI_MODE_SPEED, + SCI_MODE_SIZE /* deprecated */ +}; + +#define SCI_MAX_PHYS (4) +#define SCI_MAX_PORTS SCI_MAX_PHYS +#define SCI_MIN_SMP_PHYS (38) +#define SCI_MAX_SMP_PHYS (384) /* not silicon constrained */ +#define SCI_MAX_REMOTE_DEVICES (256) +#define SCI_MIN_REMOTE_DEVICES (16) +#define SCI_MAX_IO_REQUESTS (256) +#define SCI_MIN_IO_REQUESTS (1) +#define SCI_MAX_MSIX_MESSAGES (2) +#define SCI_MAX_SCATTER_GATHER_ELEMENTS 130 /* not silicon constrained */ +#define SCI_MIN_SCATTER_GATHER_ELEMENTS 1 +#define SCI_MAX_CONTROLLERS 2 +#define SCI_MAX_DOMAINS SCI_MAX_PORTS + +/* 2 indicates the maximum number of UFs that can occur for a given IO request. + * The hardware handles reception of additional unsolicited frames while all + * UFs are in use, by holding off the transmitting device. This number could + * be theoretically reduced to 1, but 2 provides for more reliable operation. + * During SATA PIO operation, it is possible under some conditions for there to + * be 3 separate FISes received, back to back to back (PIO Setup, Data, D2H + * Register). It is unlikely to have all 3 pending all at once without some of + * them already being processed. + */ +#define SCU_MIN_UNSOLICITED_FRAMES (1) +#define SCU_MIN_CRITICAL_NOTIFICATIONS (24) +#define SCU_MIN_EVENTS (4) +#define SCU_MIN_COMPLETION_QUEUE_SCRATCH (2) +#define SCU_MIN_COMPLETION_QUEUE_ENTRIES (SCU_MIN_CRITICAL_NOTIFICATIONS \ + + SCU_MIN_EVENTS \ + + SCU_MIN_UNSOLICITED_FRAMES \ + + SCI_MIN_IO_REQUESTS \ + + SCU_MIN_COMPLETION_QUEUE_SCRATCH) + +#define SCU_MAX_CRITICAL_NOTIFICATIONS (384) +#define SCU_MAX_EVENTS (128) +#define SCU_MAX_UNSOLICITED_FRAMES (128) +#define SCU_MAX_COMPLETION_QUEUE_SCRATCH (128) +#define SCU_MAX_COMPLETION_QUEUE_ENTRIES (SCU_MAX_CRITICAL_NOTIFICATIONS \ + + SCU_MAX_EVENTS \ + + SCU_MAX_UNSOLICITED_FRAMES \ + + SCI_MAX_IO_REQUESTS \ + + SCU_MAX_COMPLETION_QUEUE_SCRATCH) + +#if !defined(ENABLE_MINIMUM_MEMORY_MODE) +#define SCU_UNSOLICITED_FRAME_COUNT SCU_MAX_UNSOLICITED_FRAMES +#define SCU_CRITICAL_NOTIFICATION_COUNT SCU_MAX_CRITICAL_NOTIFICATIONS +#define SCU_EVENT_COUNT SCU_MAX_EVENTS +#define SCU_COMPLETION_QUEUE_SCRATCH SCU_MAX_COMPLETION_QUEUE_SCRATCH +#define SCU_IO_REQUEST_COUNT SCI_MAX_IO_REQUESTS +#define SCU_IO_REQUEST_SGE_COUNT SCI_MAX_SCATTER_GATHER_ELEMENTS +#define SCU_COMPLETION_QUEUE_COUNT SCU_MAX_COMPLETION_QUEUE_ENTRIES +#else +#define SCU_UNSOLICITED_FRAME_COUNT SCU_MIN_UNSOLICITED_FRAMES +#define SCU_CRITICAL_NOTIFICATION_COUNT SCU_MIN_CRITICAL_NOTIFICATIONS +#define SCU_EVENT_COUNT SCU_MIN_EVENTS +#define SCU_COMPLETION_QUEUE_SCRATCH SCU_MIN_COMPLETION_QUEUE_SCRATCH +#define SCU_IO_REQUEST_COUNT SCI_MIN_IO_REQUESTS +#define SCU_IO_REQUEST_SGE_COUNT SCI_MIN_SCATTER_GATHER_ELEMENTS +#define SCU_COMPLETION_QUEUE_COUNT SCU_MIN_COMPLETION_QUEUE_ENTRIES +#endif /* !defined(ENABLE_MINIMUM_MEMORY_OPERATION) */ + +/** + * + * + * The SCU_COMPLETION_QUEUE_COUNT constant indicates the size of the completion + * queue into which the hardware DMAs 32-bit quantas (completion entries). + */ + +/** + * + * + * This queue must be programmed to a power of 2 size (e.g. 32, 64, 1024, etc.). + */ +#if (SCU_COMPLETION_QUEUE_COUNT != 16) && \ + (SCU_COMPLETION_QUEUE_COUNT != 32) && \ + (SCU_COMPLETION_QUEUE_COUNT != 64) && \ + (SCU_COMPLETION_QUEUE_COUNT != 128) && \ + (SCU_COMPLETION_QUEUE_COUNT != 256) && \ + (SCU_COMPLETION_QUEUE_COUNT != 512) && \ + (SCU_COMPLETION_QUEUE_COUNT != 1024) +#error "SCU_COMPLETION_QUEUE_COUNT must be set to a power of 2." +#endif + +#if SCU_MIN_UNSOLICITED_FRAMES > SCU_MAX_UNSOLICITED_FRAMES +#error "Invalid configuration of unsolicited frame constants" +#endif /* SCU_MIN_UNSOLICITED_FRAMES > SCU_MAX_UNSOLICITED_FRAMES */ + +#define SCU_MIN_UF_TABLE_ENTRIES (8) +#define SCU_ABSOLUTE_MAX_UNSOLICITED_FRAMES (4096) +#define SCU_UNSOLICITED_FRAME_BUFFER_SIZE (1024) +#define SCU_INVALID_FRAME_INDEX (0xFFFF) + +#define SCU_IO_REQUEST_MAX_SGE_SIZE (0x00FFFFFF) +#define SCU_IO_REQUEST_MAX_TRANSFER_LENGTH (0x00FFFFFF) + +/* + * Determine the size of the unsolicited frame array including + * unused buffers. */ +#if SCU_UNSOLICITED_FRAME_COUNT <= SCU_MIN_UF_TABLE_ENTRIES +#define SCU_UNSOLICITED_FRAME_CONTROL_ARRAY_SIZE SCU_MIN_UF_TABLE_ENTRIES +#else +#define SCU_UNSOLICITED_FRAME_CONTROL_ARRAY_SIZE SCU_MAX_UNSOLICITED_FRAMES +#endif /* SCU_UNSOLICITED_FRAME_COUNT <= SCU_MIN_UF_TABLE_ENTRIES */ + +/** + * enum sci_status - This is the general return status enumeration for non-IO, + * non-task management related SCI interface methods. + * + * + */ +enum sci_status { + /** + * This member indicates successful completion. + */ + SCI_SUCCESS = 0, + + /** + * This value indicates that the calling method completed successfully, + * but that the IO may have completed before having it's start method + * invoked. This occurs during SAT translation for requests that do + * not require an IO to the target or for any other requests that may + * be completed without having to submit IO. + */ + SCI_SUCCESS_IO_COMPLETE_BEFORE_START, + + /** + * This Value indicates that the SCU hardware returned an early response + * because the io request specified more data than is returned by the + * target device (mode pages, inquiry data, etc.). The completion routine + * will handle this case to get the actual number of bytes transferred. + */ + SCI_SUCCESS_IO_DONE_EARLY, + + /** + * This member indicates that the object for which a state change is + * being requested is already in said state. + */ + SCI_WARNING_ALREADY_IN_STATE, + + /** + * This member indicates interrupt coalescence timer may cause SAS + * specification compliance issues (i.e. SMP target mode response + * frames must be returned within 1.9 milliseconds). + */ + SCI_WARNING_TIMER_CONFLICT, + + /** + * This field indicates a sequence of action is not completed yet. Mostly, + * this status is used when multiple ATA commands are needed in a SATI translation. + */ + SCI_WARNING_SEQUENCE_INCOMPLETE, + + /** + * This member indicates that there was a general failure. + */ + SCI_FAILURE, + + /** + * This member indicates that the SCI implementation is unable to complete + * an operation due to a critical flaw the prevents any further operation + * (i.e. an invalid pointer). + */ + SCI_FATAL_ERROR, + + /** + * This member indicates the calling function failed, because the state + * of the controller is in a state that prevents successful completion. + */ + SCI_FAILURE_INVALID_STATE, + + /** + * This member indicates the calling function failed, because there is + * insufficient resources/memory to complete the request. + */ + SCI_FAILURE_INSUFFICIENT_RESOURCES, + + /** + * This member indicates the calling function failed, because the + * controller object required for the operation can't be located. + */ + SCI_FAILURE_CONTROLLER_NOT_FOUND, + + /** + * This member indicates the calling function failed, because the + * discovered controller type is not supported by the library. + */ + SCI_FAILURE_UNSUPPORTED_CONTROLLER_TYPE, + + /** + * This member indicates the calling function failed, because the + * requested initialization data version isn't supported. + */ + SCI_FAILURE_UNSUPPORTED_INIT_DATA_VERSION, + + /** + * This member indicates the calling function failed, because the + * requested configuration of SAS Phys into SAS Ports is not supported. + */ + SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION, + + /** + * This member indicates the calling function failed, because the + * requested protocol is not supported by the remote device, port, + * or controller. + */ + SCI_FAILURE_UNSUPPORTED_PROTOCOL, + + /** + * This member indicates the calling function failed, because the + * requested information type is not supported by the SCI implementation. + */ + SCI_FAILURE_UNSUPPORTED_INFORMATION_TYPE, + + /** + * This member indicates the calling function failed, because the + * device already exists. + */ + SCI_FAILURE_DEVICE_EXISTS, + + /** + * This member indicates the calling function failed, because adding + * a phy to the object is not possible. + */ + SCI_FAILURE_ADDING_PHY_UNSUPPORTED, + + /** + * This member indicates the calling function failed, because the + * requested information type is not supported by the SCI implementation. + */ + SCI_FAILURE_UNSUPPORTED_INFORMATION_FIELD, + + /** + * This member indicates the calling function failed, because the SCI + * implementation does not support the supplied time limit. + */ + SCI_FAILURE_UNSUPPORTED_TIME_LIMIT, + + /** + * This member indicates the calling method failed, because the SCI + * implementation does not contain the specified Phy. + */ + SCI_FAILURE_INVALID_PHY, + + /** + * This member indicates the calling method failed, because the SCI + * implementation does not contain the specified Port. + */ + SCI_FAILURE_INVALID_PORT, + + /** + * This member indicates the calling method was partly successful + * The port was reset but not all phys in port are operational + */ + SCI_FAILURE_RESET_PORT_PARTIAL_SUCCESS, + + /** + * This member indicates that calling method failed + * The port reset did not complete because none of the phys are operational + */ + SCI_FAILURE_RESET_PORT_FAILURE, + + /** + * This member indicates the calling method failed, because the SCI + * implementation does not contain the specified remote device. + */ + SCI_FAILURE_INVALID_REMOTE_DEVICE, + + /** + * This member indicates the calling method failed, because the remote + * device is in a bad state and requires a reset. + */ + SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED, + + /** + * This member indicates the calling method failed, because the SCI + * implementation does not contain or support the specified IO tag. + */ + SCI_FAILURE_INVALID_IO_TAG, + + /** + * This member indicates that the operation failed and the user should + * check the response data associated with the IO. + */ + SCI_FAILURE_IO_RESPONSE_VALID, + + /** + * This member indicates that the operation failed, the failure is + * controller implementation specific, and the response data associated + * with the request is not valid. You can query for the controller + * specific error information via scic_controller_get_request_status() + */ + SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR, + + /** + * This member indicated that the operation failed because the + * user requested this IO to be terminated. + */ + SCI_FAILURE_IO_TERMINATED, + + /** + * This member indicates that the operation failed and the associated + * request requires a SCSI abort task to be sent to the target. + */ + SCI_FAILURE_IO_REQUIRES_SCSI_ABORT, + + /** + * This member indicates that the operation failed because the supplied + * device could not be located. + */ + SCI_FAILURE_DEVICE_NOT_FOUND, + + /** + * This member indicates that the operation failed because the + * objects association is required and is not correctly set. + */ + SCI_FAILURE_INVALID_ASSOCIATION, + + /** + * This member indicates that the operation failed, because a timeout + * occurred. + */ + SCI_FAILURE_TIMEOUT, + + /** + * This member indicates that the operation failed, because the user + * specified a value that is either invalid or not supported. + */ + SCI_FAILURE_INVALID_PARAMETER_VALUE, + + /** + * This value indicates that the operation failed, because the number + * of messages (MSI-X) is not supported. + */ + SCI_FAILURE_UNSUPPORTED_MESSAGE_COUNT, + + /** + * This value indicates that the method failed due to a lack of + * available NCQ tags. + */ + SCI_FAILURE_NO_NCQ_TAG_AVAILABLE, + + /** + * This value indicates that a protocol violation has occurred on the + * link. + */ + SCI_FAILURE_PROTOCOL_VIOLATION, + + /** + * This value indicates a failure condition that retry may help to clear. + */ + SCI_FAILURE_RETRY_REQUIRED, + + /** + * This field indicates the retry limit was reached when a retry is attempted + */ + SCI_FAILURE_RETRY_LIMIT_REACHED, + + /** + * This member indicates the calling method was partly successful. + * Mostly, this status is used when a LUN_RESET issued to an expander attached + * STP device in READY NCQ substate needs to have RNC suspended/resumed + * before posting TC. + */ + SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS, + + /** + * This field indicates an illegal phy connection based on the routing attribute + * of both expander phy attached to each other. + */ + SCI_FAILURE_ILLEGAL_ROUTING_ATTRIBUTE_CONFIGURATION, + + /** + * This field indicates a CONFIG ROUTE INFO command has a response with function result + * INDEX DOES NOT EXIST, usually means exceeding max route index. + */ + SCI_FAILURE_EXCEED_MAX_ROUTE_INDEX, + + /** + * This value indicates that an unsupported PCI device ID has been + * specified. This indicates that attempts to invoke + * scic_library_allocate_controller() will fail. + */ + SCI_FAILURE_UNSUPPORTED_PCI_DEVICE_ID + +}; + +/** + * enum sci_io_status - This enumeration depicts all of the possible IO + * completion status values. Each value in this enumeration maps directly + * to a value in the enum sci_status enumeration. Please refer to that + * enumeration for detailed comments concerning what the status represents. + * + * Add the API to retrieve the SCU status from the core. Check to see that the + * following status are properly handled: - SCI_IO_FAILURE_UNSUPPORTED_PROTOCOL + * - SCI_IO_FAILURE_INVALID_IO_TAG + */ +enum sci_io_status { + SCI_IO_SUCCESS = SCI_SUCCESS, + SCI_IO_FAILURE = SCI_FAILURE, + SCI_IO_SUCCESS_COMPLETE_BEFORE_START = SCI_SUCCESS_IO_COMPLETE_BEFORE_START, + SCI_IO_SUCCESS_IO_DONE_EARLY = SCI_SUCCESS_IO_DONE_EARLY, + SCI_IO_FAILURE_INVALID_STATE = SCI_FAILURE_INVALID_STATE, + SCI_IO_FAILURE_INSUFFICIENT_RESOURCES = SCI_FAILURE_INSUFFICIENT_RESOURCES, + SCI_IO_FAILURE_UNSUPPORTED_PROTOCOL = SCI_FAILURE_UNSUPPORTED_PROTOCOL, + SCI_IO_FAILURE_RESPONSE_VALID = SCI_FAILURE_IO_RESPONSE_VALID, + SCI_IO_FAILURE_CONTROLLER_SPECIFIC_ERR = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR, + SCI_IO_FAILURE_TERMINATED = SCI_FAILURE_IO_TERMINATED, + SCI_IO_FAILURE_REQUIRES_SCSI_ABORT = SCI_FAILURE_IO_REQUIRES_SCSI_ABORT, + SCI_IO_FAILURE_INVALID_PARAMETER_VALUE = SCI_FAILURE_INVALID_PARAMETER_VALUE, + SCI_IO_FAILURE_NO_NCQ_TAG_AVAILABLE = SCI_FAILURE_NO_NCQ_TAG_AVAILABLE, + SCI_IO_FAILURE_PROTOCOL_VIOLATION = SCI_FAILURE_PROTOCOL_VIOLATION, + + SCI_IO_FAILURE_REMOTE_DEVICE_RESET_REQUIRED = SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED, + + SCI_IO_FAILURE_RETRY_REQUIRED = SCI_FAILURE_RETRY_REQUIRED, + SCI_IO_FAILURE_RETRY_LIMIT_REACHED = SCI_FAILURE_RETRY_LIMIT_REACHED, + SCI_IO_FAILURE_INVALID_REMOTE_DEVICE = SCI_FAILURE_INVALID_REMOTE_DEVICE +}; + +/** + * enum sci_task_status - This enumeration depicts all of the possible task + * completion status values. Each value in this enumeration maps directly + * to a value in the enum sci_status enumeration. Please refer to that + * enumeration for detailed comments concerning what the status represents. + * + * Check to see that the following status are properly handled: + */ +enum sci_task_status { + SCI_TASK_SUCCESS = SCI_SUCCESS, + SCI_TASK_FAILURE = SCI_FAILURE, + SCI_TASK_FAILURE_INVALID_STATE = SCI_FAILURE_INVALID_STATE, + SCI_TASK_FAILURE_INSUFFICIENT_RESOURCES = SCI_FAILURE_INSUFFICIENT_RESOURCES, + SCI_TASK_FAILURE_UNSUPPORTED_PROTOCOL = SCI_FAILURE_UNSUPPORTED_PROTOCOL, + SCI_TASK_FAILURE_INVALID_TAG = SCI_FAILURE_INVALID_IO_TAG, + SCI_TASK_FAILURE_RESPONSE_VALID = SCI_FAILURE_IO_RESPONSE_VALID, + SCI_TASK_FAILURE_CONTROLLER_SPECIFIC_ERR = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR, + SCI_TASK_FAILURE_TERMINATED = SCI_FAILURE_IO_TERMINATED, + SCI_TASK_FAILURE_INVALID_PARAMETER_VALUE = SCI_FAILURE_INVALID_PARAMETER_VALUE, + + SCI_TASK_FAILURE_REMOTE_DEVICE_RESET_REQUIRED = SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED, + SCI_TASK_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS = SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS + +}; extern unsigned char no_outbound_task_to; extern u16 ssp_max_occ_to; @@ -85,9 +533,9 @@ irqreturn_t isci_msix_isr(int vec, void *data); irqreturn_t isci_intx_isr(int vec, void *data); irqreturn_t isci_error_isr(int vec, void *data); +struct scic_sds_controller; bool scic_sds_controller_isr(struct scic_sds_controller *scic); void scic_sds_controller_completion_handler(struct scic_sds_controller *scic); bool scic_sds_controller_error_isr(struct scic_sds_controller *scic); void scic_sds_controller_error_handler(struct scic_sds_controller *scic); - #endif /* __ISCI_H__ */ diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c index 32800491832..1134395c970 100644 --- a/drivers/scsi/isci/phy.c +++ b/drivers/scsi/isci/phy.c @@ -54,10 +54,10 @@ */ #include "isci.h" +#include "host.h" #include "phy.h" #include "scic_port.h" #include "scic_config_parameters.h" -#include "core/scic_sds_phy.h" struct scic_sds_phy; extern enum sci_status scic_sds_phy_start(struct scic_sds_phy *sci_phy); diff --git a/drivers/scsi/isci/phy.h b/drivers/scsi/isci/phy.h index 93ec2d4a9c3..3a95adbb508 100644 --- a/drivers/scsi/isci/phy.h +++ b/drivers/scsi/isci/phy.h @@ -52,16 +52,12 @@ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - - #ifndef _ISCI_PHY_H_ #define _ISCI_PHY_H_ #include #include #include "scic_sds_phy.h" -#include "port.h" -#include "host.h" struct isci_phy { struct scic_sds_phy sci; @@ -89,6 +85,7 @@ static inline struct isci_phy *sci_phy_to_iphy(struct scic_sds_phy *sci_phy) return iphy; } +struct isci_host; void isci_phy_init(struct isci_phy *iphy, struct isci_host *ihost, int index); int isci_phy_control(struct asd_sas_phy *phy, enum phy_func func, void *buf); diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index 355034542e4..59505cbf2bb 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -55,6 +55,9 @@ #ifndef _ISCI_PORT_H_ #define _ISCI_PORT_H_ + +#include +#include "isci.h" #include "scic_sds_port.h" struct isci_phy; diff --git a/drivers/scsi/isci/probe_roms.c b/drivers/scsi/isci/probe_roms.c index 933d81109ea..70551744044 100644 --- a/drivers/scsi/isci/probe_roms.c +++ b/drivers/scsi/isci/probe_roms.c @@ -32,7 +32,6 @@ #include "isci.h" #include "task.h" -#include "sci_controller_constants.h" #include "sci_environment.h" #include "probe_roms.h" diff --git a/drivers/scsi/isci/probe_roms.h b/drivers/scsi/isci/probe_roms.h index 55983363764..f4ef19ac281 100644 --- a/drivers/scsi/isci/probe_roms.h +++ b/drivers/scsi/isci/probe_roms.h @@ -58,6 +58,7 @@ #ifdef __KERNEL__ #include #include +#include "isci.h" struct isci_orom *isci_request_oprom(struct pci_dev *pdev); diff --git a/drivers/scsi/isci/remote_device.h b/drivers/scsi/isci/remote_device.h index 2e433b7f16b..a118f5873f6 100644 --- a/drivers/scsi/isci/remote_device.h +++ b/drivers/scsi/isci/remote_device.h @@ -56,7 +56,6 @@ #ifndef _ISCI_REMOTE_DEVICE_H_ #define _ISCI_REMOTE_DEVICE_H_ #include -#include "sci_status.h" #include "scu_remote_node_context.h" #include "remote_node_context.h" #include "port.h" diff --git a/drivers/scsi/isci/remote_node_table.h b/drivers/scsi/isci/remote_node_table.h index 9c02a6ccb2f..5737d9a30cc 100644 --- a/drivers/scsi/isci/remote_node_table.h +++ b/drivers/scsi/isci/remote_node_table.h @@ -56,14 +56,7 @@ #ifndef _SCIC_SDS_REMOTE_NODE_TABLE_H_ #define _SCIC_SDS_REMOTE_NODE_TABLE_H_ -/** - * This file contains the structures, constants and prototypes used for the - * remote node table. - * - * - */ - -#include "sci_controller_constants.h" +#include "isci.h" /** * diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index 4961ee34709..a58072807a3 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -62,6 +62,7 @@ #include "sata.h" #include "scu_completion_codes.h" #include "scic_sds_request.h" +#include "scic_controller.h" #include "sas.h" static enum sci_status isci_request_ssp_request_construct( diff --git a/drivers/scsi/isci/request.h b/drivers/scsi/isci/request.h index 89d8b0a27df..06786ece9bb 100644 --- a/drivers/scsi/isci/request.h +++ b/drivers/scsi/isci/request.h @@ -57,6 +57,7 @@ #define _ISCI_REQUEST_H_ #include "isci.h" +#include "host.h" #include "scic_sds_request.h" /** diff --git a/drivers/scsi/isci/sci_environment.h b/drivers/scsi/isci/sci_environment.h index 1806969fc43..30addba4d43 100644 --- a/drivers/scsi/isci/sci_environment.h +++ b/drivers/scsi/isci/sci_environment.h @@ -56,8 +56,7 @@ #ifndef _SCI_ENVIRONMENT_H_ #define _SCI_ENVIRONMENT_H_ -#include "isci.h" -#include "core/scic_sds_controller.h" +#include "host.h" static inline struct device *scic_to_dev(struct scic_sds_controller *scic) diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index 7adaf71c19d..597c49020ac 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -65,6 +65,8 @@ #include "sata.h" #include "task.h" #include "scic_sds_request.h" +#include "scic_controller.h" +#include "timers.h" /** * isci_task_refuse() - complete the request to the upper layer driver in diff --git a/drivers/scsi/isci/task.h b/drivers/scsi/isci/task.h index ecc5f139506..c59dc9620cf 100644 --- a/drivers/scsi/isci/task.h +++ b/drivers/scsi/isci/task.h @@ -56,6 +56,7 @@ #define _ISCI_TASK_H_ #include +#include "host.h" struct isci_request; diff --git a/drivers/scsi/isci/timers.c b/drivers/scsi/isci/timers.c index f33eff00dc0..007700e3eb6 100644 --- a/drivers/scsi/isci/timers.c +++ b/drivers/scsi/isci/timers.c @@ -55,6 +55,7 @@ #include "isci.h" #include "timers.h" +#include "host.h" /** * isci_timer_list_construct() - This method contrucst the SCI Timer List -- cgit v1.2.3-70-g09d2 From e2f8db509fdd354bb7a68c86515e9d2d8909ccc9 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 10 May 2011 02:28:46 -0700 Subject: isci: uplevel port infrastructure * Move port configuration agent implementation * Merge core/scic_sds_port.[ch] into port.[ch] Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/Makefile | 4 +- drivers/scsi/isci/core/scic_config_parameters.h | 249 -- drivers/scsi/isci/core/scic_port.h | 97 - drivers/scsi/isci/core/scic_sds_port.c | 2423 ------------------- drivers/scsi/isci/core/scic_sds_port.h | 435 ---- .../isci/core/scic_sds_port_configuration_agent.c | 827 ------- .../isci/core/scic_sds_port_configuration_agent.h | 107 - drivers/scsi/isci/host.c | 1 - drivers/scsi/isci/host.h | 29 +- drivers/scsi/isci/phy.c | 3 +- drivers/scsi/isci/phy.h | 1 + drivers/scsi/isci/port.c | 2519 +++++++++++++++++++- drivers/scsi/isci/port.h | 425 +++- drivers/scsi/isci/port_config.c | 826 +++++++ drivers/scsi/isci/probe_roms.h | 124 +- drivers/scsi/isci/remote_device.c | 2 - drivers/scsi/isci/remote_node_context.c | 1 - drivers/scsi/isci/request.c | 1 - 18 files changed, 3789 insertions(+), 4285 deletions(-) delete mode 100644 drivers/scsi/isci/core/scic_config_parameters.h delete mode 100644 drivers/scsi/isci/core/scic_port.h delete mode 100644 drivers/scsi/isci/core/scic_sds_port.c delete mode 100644 drivers/scsi/isci/core/scic_sds_port.h delete mode 100644 drivers/scsi/isci/core/scic_sds_port_configuration_agent.c delete mode 100644 drivers/scsi/isci/core/scic_sds_port_configuration_agent.h create mode 100644 drivers/scsi/isci/port_config.c (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/Makefile b/drivers/scsi/isci/Makefile index 2830a97a822..48218ca908f 100644 --- a/drivers/scsi/isci/Makefile +++ b/drivers/scsi/isci/Makefile @@ -1,4 +1,3 @@ -EXTRA_CFLAGS += -Idrivers/scsi/isci/core/ -Idrivers/scsi/isci/ obj-$(CONFIG_SCSI_ISCI) += isci.o isci-objs := init.o phy.o request.o sata.o \ remote_device.o port.o timers.o \ @@ -10,5 +9,4 @@ isci-objs := init.o phy.o request.o sata.o \ stp_request.o \ ssp_request.o \ smp_request.o \ - core/scic_sds_port.o \ - core/scic_sds_port_configuration_agent.o \ + port_config.o \ diff --git a/drivers/scsi/isci/core/scic_config_parameters.h b/drivers/scsi/isci/core/scic_config_parameters.h deleted file mode 100644 index 15e7744dbdc..00000000000 --- a/drivers/scsi/isci/core/scic_config_parameters.h +++ /dev/null @@ -1,249 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef _SCIC_SDS_USER_PARAMETERS_H_ -#define _SCIC_SDS_USER_PARAMETERS_H_ - -#include "probe_roms.h" - -struct scic_sds_controller; - -/** - * - * - * SCIC_SDS_PARM_PHY_SPEED These constants define the speeds utilized for a - * phy/port. - */ -#define SCIC_SDS_PARM_NO_SPEED 0 - -/** - * - * - * This value of 1 indicates generation 1 (i.e. 1.5 Gb/s). - */ -#define SCIC_SDS_PARM_GEN1_SPEED 1 - -/** - * - * - * This value of 2 indicates generation 2 (i.e. 3.0 Gb/s). - */ -#define SCIC_SDS_PARM_GEN2_SPEED 2 - -/** - * - * - * This value of 3 indicates generation 3 (i.e. 6.0 Gb/s). - */ -#define SCIC_SDS_PARM_GEN3_SPEED 3 - -/** - * - * - * For range checks, the max speed generation - */ -#define SCIC_SDS_PARM_MAX_SPEED SCIC_SDS_PARM_GEN3_SPEED - -/** - * struct scic_sds_user_parameters - This structure delineates the various user - * parameters that can be changed by the core user. - * - * - */ -struct scic_sds_user_parameters { - struct sci_phy_user_params { - /** - * This field specifies the NOTIFY (ENABLE SPIN UP) primitive - * insertion frequency for this phy index. - */ - u32 notify_enable_spin_up_insertion_frequency; - - /** - * This method specifies the number of transmitted DWORDs within which - * to transmit a single ALIGN primitive. This value applies regardless - * of what type of device is attached or connection state. A value of - * 0 indicates that no ALIGN primitives will be inserted. - */ - u16 align_insertion_frequency; - - /** - * This method specifies the number of transmitted DWORDs within which - * to transmit 2 ALIGN primitives. This applies for SAS connections - * only. A minimum value of 3 is required for this field. - */ - u16 in_connection_align_insertion_frequency; - - /** - * This field indicates the maximum speed generation to be utilized - * by phys in the supplied port. - * - A value of 1 indicates generation 1 (i.e. 1.5 Gb/s). - * - A value of 2 indicates generation 2 (i.e. 3.0 Gb/s). - * - A value of 3 indicates generation 3 (i.e. 6.0 Gb/s). - */ - u8 max_speed_generation; - - } phys[SCI_MAX_PHYS]; - - /** - * This field specifies the maximum number of direct attached devices - * that can have power supplied to them simultaneously. - */ - u8 max_number_concurrent_device_spin_up; - - /** - * This field specifies the number of seconds to allow a phy to consume - * power before yielding to another phy. - * - */ - u8 phy_spin_up_delay_interval; - - /** - * These timer values specifies how long a link will remain open with no - * activity in increments of a microsecond, it can be in increments of - * 100 microseconds if the upper most bit is set. - * - */ - u16 stp_inactivity_timeout; - u16 ssp_inactivity_timeout; - - /** - * These timer values specifies how long a link will remain open in increments - * of 100 microseconds. - * - */ - u16 stp_max_occupancy_timeout; - u16 ssp_max_occupancy_timeout; - - /** - * This timer value specifies how long a link will remain open with no - * outbound traffic in increments of a microsecond. - * - */ - u8 no_outbound_task_timeout; - -}; - -/** - * This structure/union specifies the various different user parameter sets - * available. Each type is specific to a hardware controller version. - * - * union scic_user_parameters - */ -union scic_user_parameters { - /** - * This field specifies the user parameters specific to the - * Storage Controller Unit (SCU) Driver Standard (SDS) version - * 1. - */ - struct scic_sds_user_parameters sds1; - -}; - - -/** - * - * - * SCIC_SDS_OEM_PHY_MASK These constants define the valid values for phy_mask - */ - -/** - * - * - * This is the min value assignable to a port's phy mask - */ -#define SCIC_SDS_PARM_PHY_MASK_MIN 0x0 - -/** - * - * - * This is the max value assignable to a port's phy mask - */ -#define SCIC_SDS_PARM_PHY_MASK_MAX 0xF - -#define MAX_CONCURRENT_DEVICE_SPIN_UP_COUNT 4 - -/** - * This structure/union specifies the various different OEM parameter sets - * available. Each type is specific to a hardware controller version. - * - * union scic_oem_parameters - */ -union scic_oem_parameters { - /** - * This field specifies the OEM parameters specific to the - * Storage Controller Unit (SCU) Driver Standard (SDS) version - * 1. - */ - struct scic_sds_oem_params sds1; -}; - -int scic_oem_parameters_validate(struct scic_sds_oem_params *oem); - -/** - * scic_oem_parameters_get() - This method allows the user to retreive the OEM - * parameters utilized by the controller. - * @controller: This parameter specifies the controller on which to set the - * user parameters. - * @oem_parameters: This parameter specifies the OEM parameters object in which - * to write the core's OEM parameters. - * - */ -void scic_oem_parameters_get( - struct scic_sds_controller *controller, - union scic_oem_parameters *oem_parameters); - - -#endif /* _SCIC_SDS_USER_PARAMETERS_H_ */ - diff --git a/drivers/scsi/isci/core/scic_port.h b/drivers/scsi/isci/core/scic_port.h deleted file mode 100644 index 431dbd2093f..00000000000 --- a/drivers/scsi/isci/core/scic_port.h +++ /dev/null @@ -1,97 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef _SCIC_PORT_H_ -#define _SCIC_PORT_H_ - -#include "isci.h" -#include "sas.h" -#include "phy.h" - -struct scic_sds_port; - -enum scic_port_not_ready_reason_code { - SCIC_PORT_NOT_READY_NO_ACTIVE_PHYS, - SCIC_PORT_NOT_READY_HARD_RESET_REQUESTED, - SCIC_PORT_NOT_READY_INVALID_PORT_CONFIGURATION, - SCIC_PORT_NOT_READY_RECONFIGURING, - - SCIC_PORT_NOT_READY_REASON_CODE_MAX -}; - -struct scic_port_end_point_properties { - struct sci_sas_address sas_address; - struct scic_phy_proto protocols; -}; - -struct scic_port_properties { - u32 index; - struct scic_port_end_point_properties local; - struct scic_port_end_point_properties remote; - u32 phy_mask; -}; - -enum sci_status scic_port_get_properties( - struct scic_sds_port *port, - struct scic_port_properties *properties); - -enum sci_status scic_port_hard_reset( - struct scic_sds_port *port, - u32 reset_timeout); - -void scic_port_enable_broadcast_change_notification( - struct scic_sds_port *port); - -#endif /* _SCIC_PORT_H_ */ diff --git a/drivers/scsi/isci/core/scic_sds_port.c b/drivers/scsi/isci/core/scic_sds_port.c deleted file mode 100644 index 11b516a9a13..00000000000 --- a/drivers/scsi/isci/core/scic_sds_port.c +++ /dev/null @@ -1,2423 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "host.h" -#include "scic_port.h" -#include "scic_sds_port.h" -#include "remote_device.h" -#include "remote_node_context.h" -#include "registers.h" -#include "timers.h" -#include "scu_task_context.h" - -#define SCIC_SDS_PORT_MIN_TIMER_COUNT (SCI_MAX_PORTS) -#define SCIC_SDS_PORT_MAX_TIMER_COUNT (SCI_MAX_PORTS) - -#define SCIC_SDS_PORT_HARD_RESET_TIMEOUT (1000) -#define SCU_DUMMY_INDEX (0xFFFF) - - -/** - * - * @sci_port: This is the port object to which the phy is being assigned. - * @phy_index: This is the phy index that is being assigned to the port. - * - * This method will return a true value if the specified phy can be assigned to - * this port The following is a list of phys for each port that are allowed: - - * Port 0 - 3 2 1 0 - Port 1 - 1 - Port 2 - 3 2 - Port 3 - 3 This method - * doesn't preclude all configurations. It merely ensures that a phy is part - * of the allowable set of phy identifiers for that port. For example, one - * could assign phy 3 to port 0 and no other phys. Please refer to - * scic_sds_port_is_phy_mask_valid() for information regarding whether the - * phy_mask for a port can be supported. bool true if this is a valid phy - * assignment for the port false if this is not a valid phy assignment for the - * port - */ -bool scic_sds_port_is_valid_phy_assignment( - struct scic_sds_port *sci_port, - u32 phy_index) -{ - /* Initialize to invalid value. */ - u32 existing_phy_index = SCI_MAX_PHYS; - u32 index; - - if ((sci_port->physical_port_index == 1) && (phy_index != 1)) { - return false; - } - - if (sci_port->physical_port_index == 3 && phy_index != 3) { - return false; - } - - if ( - (sci_port->physical_port_index == 2) - && ((phy_index == 0) || (phy_index == 1)) - ) { - return false; - } - - for (index = 0; index < SCI_MAX_PHYS; index++) { - if ((sci_port->phy_table[index] != NULL) - && (index != phy_index)) { - existing_phy_index = index; - } - } - - /* - * Ensure that all of the phys in the port are capable of - * operating at the same maximum link rate. */ - if ( - (existing_phy_index < SCI_MAX_PHYS) - && (sci_port->owning_controller->user_parameters.sds1.phys[ - phy_index].max_speed_generation != - sci_port->owning_controller->user_parameters.sds1.phys[ - existing_phy_index].max_speed_generation) - ) - return false; - - return true; -} - -/** - * This method requests a list (mask) of the phys contained in the supplied SAS - * port. - * @sci_port: a handle corresponding to the SAS port for which to return the - * phy mask. - * - * Return a bit mask indicating which phys are a part of this port. Each bit - * corresponds to a phy identifier (e.g. bit 0 = phy id 0). - */ -static u32 scic_sds_port_get_phys(struct scic_sds_port *sci_port) -{ - u32 index; - u32 mask; - - mask = 0; - - for (index = 0; index < SCI_MAX_PHYS; index++) { - if (sci_port->phy_table[index] != NULL) { - mask |= (1 << index); - } - } - - return mask; -} - -/** - * - * @sci_port: This is the port object for which to determine if the phy mask - * can be supported. - * - * This method will return a true value if the port's phy mask can be supported - * by the SCU. The following is a list of valid PHY mask configurations for - * each port: - Port 0 - [[3 2] 1] 0 - Port 1 - [1] - Port 2 - [[3] 2] - * - Port 3 - [3] This method returns a boolean indication specifying if the - * phy mask can be supported. true if this is a valid phy assignment for the - * port false if this is not a valid phy assignment for the port - */ -static bool scic_sds_port_is_phy_mask_valid( - struct scic_sds_port *sci_port, - u32 phy_mask) -{ - if (sci_port->physical_port_index == 0) { - if (((phy_mask & 0x0F) == 0x0F) - || ((phy_mask & 0x03) == 0x03) - || ((phy_mask & 0x01) == 0x01) - || (phy_mask == 0)) - return true; - } else if (sci_port->physical_port_index == 1) { - if (((phy_mask & 0x02) == 0x02) - || (phy_mask == 0)) - return true; - } else if (sci_port->physical_port_index == 2) { - if (((phy_mask & 0x0C) == 0x0C) - || ((phy_mask & 0x04) == 0x04) - || (phy_mask == 0)) - return true; - } else if (sci_port->physical_port_index == 3) { - if (((phy_mask & 0x08) == 0x08) - || (phy_mask == 0)) - return true; - } - - return false; -} - -/** - * - * @sci_port: This parameter specifies the port from which to return a - * connected phy. - * - * This method retrieves a currently active (i.e. connected) phy contained in - * the port. Currently, the lowest order phy that is connected is returned. - * This method returns a pointer to a SCIS_SDS_PHY object. NULL This value is - * returned if there are no currently active (i.e. connected to a remote end - * point) phys contained in the port. All other values specify a struct scic_sds_phy - * object that is active in the port. - */ -static struct scic_sds_phy *scic_sds_port_get_a_connected_phy( - struct scic_sds_port *sci_port - ) { - u32 index; - struct scic_sds_phy *phy; - - for (index = 0; index < SCI_MAX_PHYS; index++) { - /* - * Ensure that the phy is both part of the port and currently - * connected to the remote end-point. */ - phy = sci_port->phy_table[index]; - if ( - (phy != NULL) - && scic_sds_port_active_phy(sci_port, phy) - ) { - return phy; - } - } - - return NULL; -} - -/** - * scic_sds_port_set_phy() - - * @out]: port The port object to which the phy assignement is being made. - * @out]: phy The phy which is being assigned to the port. - * - * This method attempts to make the assignment of the phy to the port. If - * successful the phy is assigned to the ports phy table. bool true if the phy - * assignment can be made. false if the phy assignement can not be made. This - * is a functional test that only fails if the phy is currently assigned to a - * different port. - */ -static enum sci_status scic_sds_port_set_phy( - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - /* - * Check to see if we can add this phy to a port - * that means that the phy is not part of a port and that the port does - * not already have a phy assinged to the phy index. */ - if ( - (port->phy_table[phy->phy_index] == NULL) - && (scic_sds_phy_get_port(phy) == NULL) - && scic_sds_port_is_valid_phy_assignment(port, phy->phy_index) - ) { - /* - * Phy is being added in the stopped state so we are in MPC mode - * make logical port index = physical port index */ - port->logical_port_index = port->physical_port_index; - port->phy_table[phy->phy_index] = phy; - scic_sds_phy_set_port(phy, port); - - return SCI_SUCCESS; - } - - return SCI_FAILURE; -} - -/** - * scic_sds_port_clear_phy() - - * @out]: port The port from which the phy is being cleared. - * @out]: phy The phy being cleared from the port. - * - * This method will clear the phy assigned to this port. This method fails if - * this phy is not currently assinged to this port. bool true if the phy is - * removed from the port. false if this phy is not assined to this port. - */ -static enum sci_status scic_sds_port_clear_phy( - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - /* Make sure that this phy is part of this port */ - if (port->phy_table[phy->phy_index] == phy && - scic_sds_phy_get_port(phy) == port) { - struct scic_sds_controller *scic = port->owning_controller; - struct isci_host *ihost = scic_to_ihost(scic); - - /* Yep it is assigned to this port so remove it */ - scic_sds_phy_set_port(phy, &ihost->ports[SCI_MAX_PORTS].sci); - port->phy_table[phy->phy_index] = NULL; - return SCI_SUCCESS; - } - - return SCI_FAILURE; -} - -/** - * scic_sds_port_add_phy() - - * @sci_port: This parameter specifies the port in which the phy will be added. - * @sci_phy: This parameter is the phy which is to be added to the port. - * - * This method will add a PHY to the selected port. This method returns an - * enum sci_status. SCI_SUCCESS the phy has been added to the port. Any other status - * is failre to add the phy to the port. - */ -enum sci_status scic_sds_port_add_phy( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - return sci_port->state_handlers->add_phy_handler( - sci_port, sci_phy); -} - - -/** - * scic_sds_port_remove_phy() - - * @sci_port: This parameter specifies the port in which the phy will be added. - * @sci_phy: This parameter is the phy which is to be added to the port. - * - * This method will remove the PHY from the selected PORT. This method returns - * an enum sci_status. SCI_SUCCESS the phy has been removed from the port. Any other - * status is failre to add the phy to the port. - */ -enum sci_status scic_sds_port_remove_phy( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - return sci_port->state_handlers->remove_phy_handler( - sci_port, sci_phy); -} - -/** - * This method requests the SAS address for the supplied SAS port from the SCI - * implementation. - * @sci_port: a handle corresponding to the SAS port for which to return the - * SAS address. - * @sas_address: This parameter specifies a pointer to a SAS address structure - * into which the core will copy the SAS address for the port. - * - */ -void scic_sds_port_get_sas_address( - struct scic_sds_port *sci_port, - struct sci_sas_address *sas_address) -{ - u32 index; - - sas_address->high = 0; - sas_address->low = 0; - - for (index = 0; index < SCI_MAX_PHYS; index++) { - if (sci_port->phy_table[index] != NULL) { - scic_sds_phy_get_sas_address(sci_port->phy_table[index], sas_address); - } - } -} - -/* - * This function will indicate which protocols are supported by this port. - * @sci_port: a handle corresponding to the SAS port for which to return the - * supported protocols. - * @protocols: This parameter specifies a pointer to a data structure - * which the core will copy the protocol values for the port from the - * transmit_identification register. - */ -static void -scic_sds_port_get_protocols(struct scic_sds_port *sci_port, - struct scic_phy_proto *protocols) -{ - u8 index; - - protocols->all = 0; - - for (index = 0; index < SCI_MAX_PHYS; index++) { - if (sci_port->phy_table[index] != NULL) { - scic_sds_phy_get_protocols(sci_port->phy_table[index], - protocols); - } - } -} - -/* - * This function requests the SAS address for the device directly attached to - * this SAS port. - * @sci_port: a handle corresponding to the SAS port for which to return the - * SAS address. - * @sas_address: This parameter specifies a pointer to a SAS address structure - * into which the core will copy the SAS address for the device directly - * attached to the port. - * - */ -void scic_sds_port_get_attached_sas_address( - struct scic_sds_port *sci_port, - struct sci_sas_address *sas_address) -{ - struct scic_sds_phy *sci_phy; - - /* - * Ensure that the phy is both part of the port and currently - * connected to the remote end-point. - */ - sci_phy = scic_sds_port_get_a_connected_phy(sci_port); - if (sci_phy) { - if (sci_phy->protocol != SCIC_SDS_PHY_PROTOCOL_SATA) { - scic_sds_phy_get_attached_sas_address(sci_phy, - sas_address); - } else { - scic_sds_phy_get_sas_address(sci_phy, sas_address); - sas_address->low += sci_phy->phy_index; - } - } else { - sas_address->high = 0; - sas_address->low = 0; - } -} - -/** - * scic_sds_port_construct_dummy_rnc() - create dummy rnc for si workaround - * - * @sci_port: logical port on which we need to create the remote node context - * @rni: remote node index for this remote node context. - * - * This routine will construct a dummy remote node context data structure - * This structure will be posted to the hardware to work around a scheduler - * error in the hardware. - */ -static void scic_sds_port_construct_dummy_rnc(struct scic_sds_port *sci_port, u16 rni) -{ - union scu_remote_node_context *rnc; - - rnc = &sci_port->owning_controller->remote_node_context_table[rni]; - - memset(rnc, 0, sizeof(union scu_remote_node_context)); - - rnc->ssp.remote_sas_address_hi = 0; - rnc->ssp.remote_sas_address_lo = 0; - - rnc->ssp.remote_node_index = rni; - rnc->ssp.remote_node_port_width = 1; - rnc->ssp.logical_port_index = sci_port->physical_port_index; - - rnc->ssp.nexus_loss_timer_enable = false; - rnc->ssp.check_bit = false; - rnc->ssp.is_valid = true; - rnc->ssp.is_remote_node_context = true; - rnc->ssp.function_number = 0; - rnc->ssp.arbitration_wait_time = 0; -} - -/** - * scic_sds_port_construct_dummy_task() - create dummy task for si workaround - * @sci_port The logical port on which we need to create the - * remote node context. - * context. - * @tci The remote node index for this remote node context. - * - * This routine will construct a dummy task context data structure. This - * structure will be posted to the hardwre to work around a scheduler error - * in the hardware. - * - */ -static void scic_sds_port_construct_dummy_task(struct scic_sds_port *sci_port, u16 tci) -{ - struct scu_task_context *task_context; - - task_context = scic_sds_controller_get_task_context_buffer(sci_port->owning_controller, tci); - - memset(task_context, 0, sizeof(struct scu_task_context)); - - task_context->abort = 0; - task_context->priority = 0; - task_context->initiator_request = 1; - task_context->connection_rate = 1; - task_context->protocol_engine_index = 0; - task_context->logical_port_index = sci_port->physical_port_index; - task_context->protocol_type = SCU_TASK_CONTEXT_PROTOCOL_SSP; - task_context->task_index = scic_sds_io_tag_get_index(tci); - task_context->valid = SCU_TASK_CONTEXT_VALID; - task_context->context_type = SCU_TASK_CONTEXT_TYPE; - - task_context->remote_node_index = sci_port->reserved_rni; - task_context->command_code = 0; - - task_context->link_layer_control = 0; - task_context->do_not_dma_ssp_good_response = 1; - task_context->strict_ordering = 0; - task_context->control_frame = 0; - task_context->timeout_enable = 0; - task_context->block_guard_enable = 0; - - task_context->address_modifier = 0; - - task_context->task_phase = 0x01; -} - -static void scic_sds_port_destroy_dummy_resources(struct scic_sds_port *sci_port) -{ - struct scic_sds_controller *scic = sci_port->owning_controller; - - if (sci_port->reserved_tci != SCU_DUMMY_INDEX) - scic_controller_free_io_tag(scic, sci_port->reserved_tci); - - if (sci_port->reserved_rni != SCU_DUMMY_INDEX) - scic_sds_remote_node_table_release_remote_node_index(&scic->available_remote_nodes, - 1, sci_port->reserved_rni); - - sci_port->reserved_rni = SCU_DUMMY_INDEX; - sci_port->reserved_tci = SCU_DUMMY_INDEX; -} - -/** - * This method performs initialization of the supplied port. Initialization - * includes: - state machine initialization - member variable initialization - * - configuring the phy_mask - * @sci_port: - * @transport_layer_registers: - * @port_task_scheduler_registers: - * @port_configuration_regsiter: - * - * enum sci_status SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION This value is returned - * if the phy being added to the port - */ -enum sci_status scic_sds_port_initialize( - struct scic_sds_port *sci_port, - void __iomem *port_task_scheduler_registers, - void __iomem *port_configuration_regsiter, - void __iomem *viit_registers) -{ - sci_port->port_task_scheduler_registers = port_task_scheduler_registers; - sci_port->port_pe_configuration_register = port_configuration_regsiter; - sci_port->viit_registers = viit_registers; - - return SCI_SUCCESS; -} - -/** - * scic_port_get_properties() - This method simply returns the properties - * regarding the port, such as: physical index, protocols, sas address, etc. - * @port: this parameter specifies the port for which to retrieve the physical - * index. - * @properties: This parameter specifies the properties structure into which to - * copy the requested information. - * - * Indicate if the user specified a valid port. SCI_SUCCESS This value is - * returned if the specified port was valid. SCI_FAILURE_INVALID_PORT This - * value is returned if the specified port is not valid. When this value is - * returned, no data is copied to the properties output parameter. - */ -enum sci_status scic_port_get_properties( - struct scic_sds_port *port, - struct scic_port_properties *prop) -{ - if ((port == NULL) || - (port->logical_port_index == SCIC_SDS_DUMMY_PORT)) - return SCI_FAILURE_INVALID_PORT; - - prop->index = port->logical_port_index; - prop->phy_mask = scic_sds_port_get_phys(port); - scic_sds_port_get_sas_address(port, &prop->local.sas_address); - scic_sds_port_get_protocols(port, &prop->local.protocols); - scic_sds_port_get_attached_sas_address(port, &prop->remote.sas_address); - - return SCI_SUCCESS; -} - -/** - * scic_port_hard_reset() - perform port hard reset - * @port: a handle corresponding to the SAS port to be hard reset. - * @reset_timeout: This parameter specifies the number of milliseconds in which - * the port reset operation should complete. - * - * The SCI User callback in scic_user_callbacks_t will only be called once for - * each phy in the SAS Port at completion of the hard reset sequence. Return a - * status indicating whether the hard reset started successfully. SCI_SUCCESS - * This value is returned if the hard reset operation started successfully. - */ -enum sci_status scic_port_hard_reset( - struct scic_sds_port *port, - u32 reset_timeout) -{ - return port->state_handlers->reset_handler( - port, reset_timeout); -} - -/** - * This method assigns the direct attached device ID for this port. - * - * @param[in] sci_port The port for which the direct attached device id is to - * be assigned. - * @param[in] device_id The direct attached device ID to assign to the port. - * This will be the RNi for the device - */ -void scic_sds_port_setup_transports( - struct scic_sds_port *sci_port, - u32 device_id) -{ - u8 index; - - for (index = 0; index < SCI_MAX_PHYS; index++) { - if (sci_port->active_phy_mask & (1 << index)) - scic_sds_phy_setup_transport(sci_port->phy_table[index], device_id); - } -} - -/** - * - * @sci_port: This is the port on which the phy should be enabled. - * @sci_phy: This is the specific phy which to enable. - * @do_notify_user: This parameter specifies whether to inform the user (via - * scic_cb_port_link_up()) as to the fact that a new phy as become ready. - * - * This function will activate the phy in the port. - * Activation includes: - adding - * the phy to the port - enabling the Protocol Engine in the silicon. - - * notifying the user that the link is up. none - */ -static void scic_sds_port_activate_phy(struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy, - bool do_notify_user) -{ - struct scic_sds_controller *scic = sci_port->owning_controller; - struct isci_host *ihost = scic_to_ihost(scic); - - if (sci_phy->protocol != SCIC_SDS_PHY_PROTOCOL_SATA) - scic_sds_phy_resume(sci_phy); - - sci_port->active_phy_mask |= 1 << sci_phy->phy_index; - - scic_sds_controller_clear_invalid_phy(scic, sci_phy); - - if (do_notify_user == true) - isci_port_link_up(ihost, sci_port, sci_phy); -} - -void scic_sds_port_deactivate_phy(struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy, - bool do_notify_user) -{ - struct scic_sds_controller *scic = scic_sds_port_get_controller(sci_port); - struct isci_port *iport = sci_port_to_iport(sci_port); - struct isci_host *ihost = scic_to_ihost(scic); - struct isci_phy *iphy = sci_phy_to_iphy(sci_phy); - - sci_port->active_phy_mask &= ~(1 << sci_phy->phy_index); - - sci_phy->max_negotiated_speed = SAS_LINK_RATE_UNKNOWN; - - /* Re-assign the phy back to the LP as if it were a narrow port */ - writel(sci_phy->phy_index, - &sci_port->port_pe_configuration_register[sci_phy->phy_index]); - - if (do_notify_user == true) - isci_port_link_down(ihost, iphy, iport); -} - -/** - * - * @sci_port: This is the port on which the phy should be disabled. - * @sci_phy: This is the specific phy which to disabled. - * - * This function will disable the phy and report that the phy is not valid for - * this port object. None - */ -static void scic_sds_port_invalid_link_up(struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - struct scic_sds_controller *scic = sci_port->owning_controller; - - /* - * Check to see if we have alreay reported this link as bad and if - * not go ahead and tell the SCI_USER that we have discovered an - * invalid link. - */ - if ((scic->invalid_phy_mask & (1 << sci_phy->phy_index)) == 0) { - scic_sds_controller_set_invalid_phy(scic, sci_phy); - dev_warn(&scic_to_ihost(scic)->pdev->dev, "Invalid link up!\n"); - } -} - -/** - * scic_sds_port_general_link_up_handler - phy can be assigned to port? - * @sci_port: scic_sds_port object for which has a phy that has gone link up. - * @sci_phy: This is the struct scic_sds_phy object that has gone link up. - * @do_notify_user: This parameter specifies whether to inform the user (via - * scic_cb_port_link_up()) as to the fact that a new phy as become ready. - * - * Determine if this phy can be assigned to this - * port . If the phy is not a valid PHY for - * this port then the function will notify the user. A PHY can only be - * part of a port if it's attached SAS ADDRESS is the same as all other PHYs in - * the same port. none - */ -static void scic_sds_port_general_link_up_handler(struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy, - bool do_notify_user) -{ - struct sci_sas_address port_sas_address; - struct sci_sas_address phy_sas_address; - - scic_sds_port_get_attached_sas_address(sci_port, &port_sas_address); - scic_sds_phy_get_attached_sas_address(sci_phy, &phy_sas_address); - - /* If the SAS address of the new phy matches the SAS address of - * other phys in the port OR this is the first phy in the port, - * then activate the phy and allow it to be used for operations - * in this port. - */ - if ((phy_sas_address.high == port_sas_address.high && - phy_sas_address.low == port_sas_address.low) || - sci_port->active_phy_mask == 0) { - struct sci_base_state_machine *sm = &sci_port->state_machine; - - scic_sds_port_activate_phy(sci_port, sci_phy, do_notify_user); - if (sm->current_state_id == SCI_BASE_PORT_STATE_RESETTING) - sci_base_state_machine_change_state(sm, SCI_BASE_PORT_STATE_READY); - } else - scic_sds_port_invalid_link_up(sci_port, sci_phy); -} - - - -/** - * This method returns false if the port only has a single phy object assigned. - * If there are no phys or more than one phy then the method will return - * true. - * @sci_port: The port for which the wide port condition is to be checked. - * - * bool true Is returned if this is a wide ported port. false Is returned if - * this is a narrow port. - */ -static bool scic_sds_port_is_wide(struct scic_sds_port *sci_port) -{ - u32 index; - u32 phy_count = 0; - - for (index = 0; index < SCI_MAX_PHYS; index++) { - if (sci_port->phy_table[index] != NULL) { - phy_count++; - } - } - - return phy_count != 1; -} - -/** - * This method is called by the PHY object when the link is detected. if the - * port wants the PHY to continue on to the link up state then the port - * layer must return true. If the port object returns false the phy object - * must halt its attempt to go link up. - * @sci_port: The port associated with the phy object. - * @sci_phy: The phy object that is trying to go link up. - * - * true if the phy object can continue to the link up condition. true Is - * returned if this phy can continue to the ready state. false Is returned if - * can not continue on to the ready state. This notification is in place for - * wide ports and direct attached phys. Since there are no wide ported SATA - * devices this could become an invalid port configuration. - */ -bool scic_sds_port_link_detected( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - if ((sci_port->logical_port_index != SCIC_SDS_DUMMY_PORT) && - (sci_phy->protocol == SCIC_SDS_PHY_PROTOCOL_SATA) && - scic_sds_port_is_wide(sci_port)) { - scic_sds_port_invalid_link_up(sci_port, sci_phy); - - return false; - } - - return true; -} - -/** - * This method is the entry point for the phy to inform the port that it is now - * in a ready state - * @sci_port: - * - * - */ -void scic_sds_port_link_up( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - sci_phy->is_in_link_training = false; - - sci_port->state_handlers->link_up_handler(sci_port, sci_phy); -} - -/** - * This method is the entry point for the phy to inform the port that it is no - * longer in a ready state - * @sci_port: - * - * - */ -void scic_sds_port_link_down( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - sci_port->state_handlers->link_down_handler(sci_port, sci_phy); -} - -/** - * This method is called to start an IO request on this port. - * @sci_port: - * @sci_dev: - * @sci_req: - * - * enum sci_status - */ -enum sci_status scic_sds_port_start_io( - struct scic_sds_port *sci_port, - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req) -{ - return sci_port->state_handlers->start_io_handler( - sci_port, sci_dev, sci_req); -} - -/** - * This method is called to complete an IO request to the port. - * @sci_port: - * @sci_dev: - * @sci_req: - * - * enum sci_status - */ -enum sci_status scic_sds_port_complete_io( - struct scic_sds_port *sci_port, - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req) -{ - return sci_port->state_handlers->complete_io_handler( - sci_port, sci_dev, sci_req); -} - -/** - * This method is provided to timeout requests for port operations. Mostly its - * for the port reset operation. - * - * - */ -static void scic_sds_port_timeout_handler(void *port) -{ - struct scic_sds_port *sci_port = port; - u32 current_state; - - current_state = sci_base_state_machine_get_state( - &sci_port->state_machine); - - if (current_state == SCI_BASE_PORT_STATE_RESETTING) { - /* - * if the port is still in the resetting state then the - * timeout fired before the reset completed. - */ - sci_base_state_machine_change_state( - &sci_port->state_machine, - SCI_BASE_PORT_STATE_FAILED); - } else if (current_state == SCI_BASE_PORT_STATE_STOPPED) { - /* - * if the port is stopped then the start request failed - * In this case stay in the stopped state. - */ - dev_err(sciport_to_dev(sci_port), - "%s: SCIC Port 0x%p failed to stop before tiemout.\n", - __func__, - sci_port); - } else if (current_state == SCI_BASE_PORT_STATE_STOPPING) { - /* - * if the port is still stopping then the stop has not - * completed - */ - isci_port_stop_complete( - scic_sds_port_get_controller(sci_port), - sci_port, - SCI_FAILURE_TIMEOUT); - } else { - /* - * The port is in the ready state and we have a timer - * reporting a timeout this should not happen. - */ - dev_err(sciport_to_dev(sci_port), - "%s: SCIC Port 0x%p is processing a timeout operation " - "in state %d.\n", - __func__, - sci_port, - current_state); - } -} - -/* --------------------------------------------------------------------------- */ - -/** - * This function updates the hardwares VIIT entry for this port. - * - * - */ -static void scic_sds_port_update_viit_entry(struct scic_sds_port *sci_port) -{ - struct sci_sas_address sas_address; - - scic_sds_port_get_sas_address(sci_port, &sas_address); - - writel(sas_address.high, - &sci_port->viit_registers->initiator_sas_address_hi); - writel(sas_address.low, - &sci_port->viit_registers->initiator_sas_address_lo); - - /* This value get cleared just in case its not already cleared */ - writel(0, &sci_port->viit_registers->reserved); - - /* We are required to update the status register last */ - writel(SCU_VIIT_ENTRY_ID_VIIT | - SCU_VIIT_IPPT_INITIATOR | - ((1 << sci_port->physical_port_index) << SCU_VIIT_ENTRY_LPVIE_SHIFT) | - SCU_VIIT_STATUS_ALL_VALID, - &sci_port->viit_registers->status); -} - -/** - * This method returns the maximum allowed speed for data transfers on this - * port. This maximum allowed speed evaluates to the maximum speed of the - * slowest phy in the port. - * @sci_port: This parameter specifies the port for which to retrieve the - * maximum allowed speed. - * - * This method returns the maximum negotiated speed of the slowest phy in the - * port. - */ -enum sas_linkrate scic_sds_port_get_max_allowed_speed( - struct scic_sds_port *sci_port) -{ - u16 index; - enum sas_linkrate max_allowed_speed = SAS_LINK_RATE_6_0_GBPS; - struct scic_sds_phy *phy = NULL; - - /* - * Loop through all of the phys in this port and find the phy with the - * lowest maximum link rate. */ - for (index = 0; index < SCI_MAX_PHYS; index++) { - phy = sci_port->phy_table[index]; - if ( - (phy != NULL) - && (scic_sds_port_active_phy(sci_port, phy) == true) - && (phy->max_negotiated_speed < max_allowed_speed) - ) - max_allowed_speed = phy->max_negotiated_speed; - } - - return max_allowed_speed; -} - - -/** - * This method passes the event to core user. - * @sci_port: The port that a BCN happens. - * @sci_phy: The phy that receives BCN. - * - */ -void scic_sds_port_broadcast_change_received( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - struct scic_sds_controller *scic = sci_port->owning_controller; - struct isci_host *ihost = scic_to_ihost(scic); - - /* notify the user. */ - isci_port_bc_change_received(ihost, sci_port, sci_phy); -} - - -/** - * This API methhod enables the broadcast change notification from underneath - * hardware. - * @sci_port: The port that a BCN had been disabled from. - * - */ -void scic_port_enable_broadcast_change_notification( - struct scic_sds_port *port) -{ - struct scic_sds_phy *phy; - u32 register_value; - u8 index; - - /* Loop through all of the phys to enable BCN. */ - for (index = 0; index < SCI_MAX_PHYS; index++) { - phy = port->phy_table[index]; - if (phy != NULL) { - register_value = - readl(&phy->link_layer_registers->link_layer_control); - - /* clear the bit by writing 1. */ - writel(register_value, - &phy->link_layer_registers->link_layer_control); - } - } -} - -/* - * **************************************************************************** - * * READY SUBSTATE HANDLERS - * **************************************************************************** */ - -/* - * This method is the general ready state stop handler for the struct scic_sds_port - * object. This function will transition the ready substate machine to its - * final state. enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_port_ready_substate_stop_handler( - struct scic_sds_port *port) -{ - sci_base_state_machine_change_state( - &port->state_machine, - SCI_BASE_PORT_STATE_STOPPING - ); - - return SCI_SUCCESS; -} - -/* - * This method is the general ready substate complete io handler for the - * struct scic_sds_port object. This function decrments the outstanding request count - * for this port object. enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_port_ready_substate_complete_io_handler( - struct scic_sds_port *port, - struct scic_sds_remote_device *device, - struct scic_sds_request *io_request) -{ - scic_sds_port_decrement_request_count(port); - - return SCI_SUCCESS; -} - -static enum sci_status scic_sds_port_ready_substate_add_phy_handler( - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - enum sci_status status; - - status = scic_sds_port_set_phy(port, phy); - - if (status == SCI_SUCCESS) { - scic_sds_port_general_link_up_handler(port, phy, true); - - port->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; - - sci_base_state_machine_change_state( - &port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING - ); - } - - return status; -} - - -static enum sci_status scic_sds_port_ready_substate_remove_phy_handler( - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - enum sci_status status; - - status = scic_sds_port_clear_phy(port, phy); - - if (status == SCI_SUCCESS) { - scic_sds_port_deactivate_phy(port, phy, true); - - port->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; - - sci_base_state_machine_change_state( - &port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING - ); - } - - return status; -} - -/* - * **************************************************************************** - * * READY SUBSTATE WAITING HANDLERS - * **************************************************************************** */ - -/** - * - * @sci_port: This is the struct scic_sds_port object that which has a phy that has - * gone link up. - * @sci_phy: This is the struct scic_sds_phy object that has gone link up. - * - * This method is the ready waiting substate link up handler for the - * struct scic_sds_port object. This methos will report the link up condition for - * this port and will transition to the ready operational substate. none - */ -static void scic_sds_port_ready_waiting_substate_link_up_handler( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - /* - * Since this is the first phy going link up for the port we can just enable - * it and continue. */ - scic_sds_port_activate_phy(sci_port, sci_phy, true); - - sci_base_state_machine_change_state( - &sci_port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL - ); -} - -/* - * This method is the ready waiting substate start io handler for the - * struct scic_sds_port object. The port object can not accept new requests so the - * request is failed. enum sci_status SCI_FAILURE_INVALID_STATE - */ -static enum sci_status scic_sds_port_ready_waiting_substate_start_io_handler( - struct scic_sds_port *port, - struct scic_sds_remote_device *device, - struct scic_sds_request *io_request) -{ - return SCI_FAILURE_INVALID_STATE; -} - -/* - * **************************************************************************** - * * READY SUBSTATE OPERATIONAL HANDLERS - * **************************************************************************** */ - -/* - * This method will casue the port to reset. enum sci_status SCI_SUCCESS - */ -static enum -sci_status scic_sds_port_ready_operational_substate_reset_handler( - struct scic_sds_port *port, - u32 timeout) -{ - enum sci_status status = SCI_FAILURE_INVALID_PHY; - u32 phy_index; - struct scic_sds_phy *selected_phy = NULL; - - - /* Select a phy on which we can send the hard reset request. */ - for (phy_index = 0; - (phy_index < SCI_MAX_PHYS) && (selected_phy == NULL); - phy_index++) { - selected_phy = port->phy_table[phy_index]; - - if ((selected_phy != NULL) && - !scic_sds_port_active_phy(port, selected_phy)) { - /* - * We found a phy but it is not ready select - * different phy - */ - selected_phy = NULL; - } - } - - /* If we have a phy then go ahead and start the reset procedure */ - if (selected_phy != NULL) { - status = scic_sds_phy_reset(selected_phy); - - if (status == SCI_SUCCESS) { - isci_timer_start(port->timer_handle, timeout); - port->not_ready_reason = - SCIC_PORT_NOT_READY_HARD_RESET_REQUESTED; - - sci_base_state_machine_change_state( - &port->state_machine, - SCI_BASE_PORT_STATE_RESETTING); - } - } - - return status; -} - -/** - * scic_sds_port_ready_operational_substate_link_up_handler() - - * @sci_port: This is the struct scic_sds_port object that which has a phy that has - * gone link up. - * @sci_phy: This is the struct scic_sds_phy object that has gone link up. - * - * This method is the ready operational substate link up handler for the - * struct scic_sds_port object. This function notifies the SCI User that the phy has - * gone link up. none - */ -static void scic_sds_port_ready_operational_substate_link_up_handler( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - scic_sds_port_general_link_up_handler(sci_port, sci_phy, true); -} - -/** - * scic_sds_port_ready_operational_substate_link_down_handler() - - * @sci_port: This is the struct scic_sds_port object that which has a phy that has - * gone link down. - * @sci_phy: This is the struct scic_sds_phy object that has gone link down. - * - * This method is the ready operational substate link down handler for the - * struct scic_sds_port object. This function notifies the SCI User that the phy has - * gone link down and if this is the last phy in the port the port will change - * state to the ready waiting substate. none - */ -static void scic_sds_port_ready_operational_substate_link_down_handler( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - scic_sds_port_deactivate_phy(sci_port, sci_phy, true); - - /* - * If there are no active phys left in the port, then transition - * the port to the WAITING state until such time as a phy goes - * link up. */ - if (sci_port->active_phy_mask == 0) - sci_base_state_machine_change_state(&sci_port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_WAITING); -} - -/* - * This method is the ready operational substate start io handler for the - * struct scic_sds_port object. This function incremetns the outstanding request - * count for this port object. enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_port_ready_operational_substate_start_io_handler( - struct scic_sds_port *port, - struct scic_sds_remote_device *device, - struct scic_sds_request *io_request) -{ - port->started_request_count++; - return SCI_SUCCESS; -} - -/* - * **************************************************************************** - * * READY SUBSTATE OPERATIONAL HANDLERS - * **************************************************************************** */ - -/* - * This is the default method for a port add phy request. It will report a - * warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE - */ -static enum sci_status scic_sds_port_ready_configuring_substate_add_phy_handler( - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - enum sci_status status; - - status = scic_sds_port_set_phy(port, phy); - - if (status == SCI_SUCCESS) { - scic_sds_port_general_link_up_handler(port, phy, true); - - /* - * Re-enter the configuring state since this may be the last phy in - * the port. */ - sci_base_state_machine_change_state( - &port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING - ); - } - - return status; -} - -/* - * This is the default method for a port remove phy request. It will report a - * warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE - */ -static enum sci_status scic_sds_port_ready_configuring_substate_remove_phy_handler( - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - enum sci_status status; - - status = scic_sds_port_clear_phy(port, phy); - - if (status == SCI_SUCCESS) { - scic_sds_port_deactivate_phy(port, phy, true); - - /* - * Re-enter the configuring state since this may be the last phy in - * the port. */ - sci_base_state_machine_change_state( - &port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING - ); - } - - return status; -} - -/** - * scic_sds_port_ready_configuring_substate_complete_io_handler() - - * @port: This is the port that is being requested to complete the io request. - * @device: This is the device on which the io is completing. - * - * This method will decrement the outstanding request count for this port. If - * the request count goes to 0 then the port can be reprogrammed with its new - * phy data. - */ -static enum sci_status -scic_sds_port_ready_configuring_substate_complete_io_handler( - struct scic_sds_port *port, - struct scic_sds_remote_device *device, - struct scic_sds_request *io_request) -{ - scic_sds_port_decrement_request_count(port); - - if (port->started_request_count == 0) { - sci_base_state_machine_change_state( - &port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL - ); - } - - return SCI_SUCCESS; -} - -static enum sci_status default_port_handler(struct scic_sds_port *sci_port, - const char *func) -{ - dev_warn(sciport_to_dev(sci_port), - "%s: in wrong state: %d\n", func, - sci_base_state_machine_get_state(&sci_port->state_machine)); - return SCI_FAILURE_INVALID_STATE; -} - -static enum sci_status -scic_sds_port_default_start_handler(struct scic_sds_port *sci_port) -{ - return default_port_handler(sci_port, __func__); -} - -static enum sci_status -scic_sds_port_default_stop_handler(struct scic_sds_port *sci_port) -{ - return default_port_handler(sci_port, __func__); -} - -static enum sci_status -scic_sds_port_default_destruct_handler(struct scic_sds_port *sci_port) -{ - return default_port_handler(sci_port, __func__); -} - -static enum sci_status -scic_sds_port_default_reset_handler(struct scic_sds_port *sci_port, - u32 timeout) -{ - return default_port_handler(sci_port, __func__); -} - -static enum sci_status -scic_sds_port_default_add_phy_handler(struct scic_sds_port *sci_port, - struct scic_sds_phy *base_phy) -{ - return default_port_handler(sci_port, __func__); -} - -static enum sci_status -scic_sds_port_default_remove_phy_handler(struct scic_sds_port *sci_port, - struct scic_sds_phy *base_phy) -{ - return default_port_handler(sci_port, __func__); -} - -/* - * This is the default method for a port unsolicited frame request. It will - * report a warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE Is it even - * possible to receive an unsolicited frame directed to a port object? It - * seems possible if we implementing virtual functions but until then? - */ -static enum sci_status -scic_sds_port_default_frame_handler(struct scic_sds_port *sci_port, - u32 frame_index) -{ - struct scic_sds_controller *scic = scic_sds_port_get_controller(sci_port); - - default_port_handler(sci_port, __func__); - scic_sds_controller_release_frame(scic, frame_index); - - return SCI_FAILURE_INVALID_STATE; -} - -static enum sci_status scic_sds_port_default_event_handler(struct scic_sds_port *sci_port, - u32 event_code) -{ - return default_port_handler(sci_port, __func__); -} - -static void scic_sds_port_default_link_up_handler(struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - default_port_handler(sci_port, __func__); -} - -static void scic_sds_port_default_link_down_handler(struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - default_port_handler(sci_port, __func__); -} - -static enum sci_status scic_sds_port_default_start_io_handler(struct scic_sds_port *sci_port, - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req) -{ - return default_port_handler(sci_port, __func__); -} - -static enum sci_status scic_sds_port_default_complete_io_handler(struct scic_sds_port *sci_port, - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req) -{ - return default_port_handler(sci_port, __func__); -} - - - -static struct scic_sds_port_state_handler -scic_sds_port_ready_substate_handler_table[SCIC_SDS_PORT_READY_MAX_SUBSTATES] = { - { - /* SCIC_SDS_PORT_READY_SUBSTATE_WAITING */ - scic_sds_port_default_start_handler, - scic_sds_port_ready_substate_stop_handler, - scic_sds_port_default_destruct_handler, - scic_sds_port_default_reset_handler, - scic_sds_port_ready_substate_add_phy_handler, - scic_sds_port_default_remove_phy_handler, - scic_sds_port_default_frame_handler, - scic_sds_port_default_event_handler, - scic_sds_port_ready_waiting_substate_link_up_handler, - scic_sds_port_default_link_down_handler, - scic_sds_port_ready_waiting_substate_start_io_handler, - scic_sds_port_ready_substate_complete_io_handler, - }, - - { - /* SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL */ - scic_sds_port_default_start_handler, - scic_sds_port_ready_substate_stop_handler, - scic_sds_port_default_destruct_handler, - scic_sds_port_ready_operational_substate_reset_handler, - scic_sds_port_ready_substate_add_phy_handler, - scic_sds_port_ready_substate_remove_phy_handler, - scic_sds_port_default_frame_handler, - scic_sds_port_default_event_handler, - scic_sds_port_ready_operational_substate_link_up_handler, - scic_sds_port_ready_operational_substate_link_down_handler, - scic_sds_port_ready_operational_substate_start_io_handler, - scic_sds_port_ready_substate_complete_io_handler, - }, - - { - /* SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING */ - scic_sds_port_default_start_handler, - scic_sds_port_ready_substate_stop_handler, - scic_sds_port_default_destruct_handler, - scic_sds_port_default_reset_handler, - scic_sds_port_ready_configuring_substate_add_phy_handler, - scic_sds_port_ready_configuring_substate_remove_phy_handler, - scic_sds_port_default_frame_handler, - scic_sds_port_default_event_handler, - scic_sds_port_default_link_up_handler, - scic_sds_port_default_link_down_handler, - scic_sds_port_default_start_io_handler, - scic_sds_port_ready_configuring_substate_complete_io_handler - } -}; - -/** - * scic_sds_port_set_ready_state_handlers() - - * - * This macro sets the port ready substate handlers. - */ -#define scic_sds_port_set_ready_state_handlers(port, state_id) \ - scic_sds_port_set_state_handlers(\ - port, &scic_sds_port_ready_substate_handler_table[(state_id)] \ - ) - -/* - * ****************************************************************************** - * * PORT STATE PRIVATE METHODS - * ****************************************************************************** */ - -/** - * - * @sci_port: This is the struct scic_sds_port object to suspend. - * - * This method will susped the port task scheduler for this port object. none - */ -static void -scic_sds_port_suspend_port_task_scheduler(struct scic_sds_port *port) -{ - u32 pts_control_value; - - pts_control_value = readl(&port->port_task_scheduler_registers->control); - pts_control_value |= SCU_PTSxCR_GEN_BIT(SUSPEND); - writel(pts_control_value, &port->port_task_scheduler_registers->control); -} - -/** - * scic_sds_port_post_dummy_request() - post dummy/workaround request - * @sci_port: port to post task - * - * Prevent the hardware scheduler from posting new requests to the front - * of the scheduler queue causing a starvation problem for currently - * ongoing requests. - * - */ -static void scic_sds_port_post_dummy_request(struct scic_sds_port *sci_port) -{ - u32 command; - struct scu_task_context *task_context; - struct scic_sds_controller *scic = sci_port->owning_controller; - u16 tci = sci_port->reserved_tci; - - task_context = scic_sds_controller_get_task_context_buffer(scic, tci); - - task_context->abort = 0; - - command = SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | - sci_port->physical_port_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | - tci; - - scic_sds_controller_post_request(scic, command); -} - -/** - * This routine will abort the dummy request. This will alow the hardware to - * power down parts of the silicon to save power. - * - * @sci_port: The port on which the task must be aborted. - * - */ -static void scic_sds_port_abort_dummy_request(struct scic_sds_port *sci_port) -{ - struct scic_sds_controller *scic = sci_port->owning_controller; - u16 tci = sci_port->reserved_tci; - struct scu_task_context *tc; - u32 command; - - tc = scic_sds_controller_get_task_context_buffer(scic, tci); - - tc->abort = 1; - - command = SCU_CONTEXT_COMMAND_REQUEST_POST_TC_ABORT | - sci_port->physical_port_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | - tci; - - scic_sds_controller_post_request(scic, command); -} - -/** - * - * @sci_port: This is the struct scic_sds_port object to resume. - * - * This method will resume the port task scheduler for this port object. none - */ -static void -scic_sds_port_resume_port_task_scheduler(struct scic_sds_port *port) -{ - u32 pts_control_value; - - pts_control_value = readl(&port->port_task_scheduler_registers->control); - pts_control_value &= ~SCU_PTSxCR_GEN_BIT(SUSPEND); - writel(pts_control_value, &port->port_task_scheduler_registers->control); -} - -/* - * ****************************************************************************** - * * PORT READY SUBSTATE METHODS - * ****************************************************************************** */ - -/** - * - * @object: This is the object which is cast to a struct scic_sds_port object. - * - * This method will perform the actions required by the struct scic_sds_port on - * entering the SCIC_SDS_PORT_READY_SUBSTATE_WAITING. This function checks the - * port for any ready phys. If there is at least one phy in a ready state then - * the port transitions to the ready operational substate. none - */ -static void scic_sds_port_ready_substate_waiting_enter(void *object) -{ - struct scic_sds_port *sci_port = object; - - scic_sds_port_set_ready_state_handlers( - sci_port, SCIC_SDS_PORT_READY_SUBSTATE_WAITING - ); - - scic_sds_port_suspend_port_task_scheduler(sci_port); - - sci_port->not_ready_reason = SCIC_PORT_NOT_READY_NO_ACTIVE_PHYS; - - if (sci_port->active_phy_mask != 0) { - /* At least one of the phys on the port is ready */ - sci_base_state_machine_change_state( - &sci_port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL - ); - } -} - -/** - * - * @object: This is the object which is cast to a struct scic_sds_port object. - * - * This function will perform the actions required by the struct scic_sds_port - * on entering the SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL. This function sets - * the state handlers for the port object, notifies the SCI User that the port - * is ready, and resumes port operations. none - */ -static void scic_sds_port_ready_substate_operational_enter(void *object) -{ - u32 index; - struct scic_sds_port *sci_port = object; - struct scic_sds_controller *scic = sci_port->owning_controller; - struct isci_host *ihost = scic_to_ihost(scic); - struct isci_port *iport = sci_port_to_iport(sci_port); - - scic_sds_port_set_ready_state_handlers( - sci_port, - SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL); - - isci_port_ready(ihost, iport); - - for (index = 0; index < SCI_MAX_PHYS; index++) { - if (sci_port->phy_table[index]) { - writel(sci_port->physical_port_index, - &sci_port->port_pe_configuration_register[ - sci_port->phy_table[index]->phy_index]); - } - } - - scic_sds_port_update_viit_entry(sci_port); - - scic_sds_port_resume_port_task_scheduler(sci_port); - - /* - * Post the dummy task for the port so the hardware can schedule - * io correctly - */ - scic_sds_port_post_dummy_request(sci_port); -} - -/** - * - * @object: This is the object which is cast to a struct scic_sds_port object. - * - * This method will perform the actions required by the struct scic_sds_port on - * exiting the SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL. This function reports - * the port not ready and suspends the port task scheduler. none - */ -static void scic_sds_port_ready_substate_operational_exit(void *object) -{ - struct scic_sds_port *sci_port = object; - struct scic_sds_controller *scic = sci_port->owning_controller; - struct isci_host *ihost = scic_to_ihost(scic); - struct isci_port *iport = sci_port_to_iport(sci_port); - - /* - * Kill the dummy task for this port if it has not yet posted - * the hardware will treat this as a NOP and just return abort - * complete. - */ - scic_sds_port_abort_dummy_request(sci_port); - - isci_port_not_ready(ihost, iport); -} - -/* - * ****************************************************************************** - * * PORT READY CONFIGURING METHODS - * ****************************************************************************** */ - -/** - * scic_sds_port_ready_substate_configuring_enter() - - * @object: This is the object which is cast to a struct scic_sds_port object. - * - * This method will perform the actions required by the struct scic_sds_port on - * exiting the SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL. This function reports - * the port not ready and suspends the port task scheduler. none - */ -static void scic_sds_port_ready_substate_configuring_enter(void *object) -{ - struct scic_sds_port *sci_port = object; - struct scic_sds_controller *scic = sci_port->owning_controller; - struct isci_host *ihost = scic_to_ihost(scic); - struct isci_port *iport = sci_port_to_iport(sci_port); - - scic_sds_port_set_ready_state_handlers( - sci_port, - SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); - - if (sci_port->active_phy_mask == 0) { - isci_port_not_ready(ihost, iport); - - sci_base_state_machine_change_state( - &sci_port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_WAITING); - } else if (sci_port->started_request_count == 0) - sci_base_state_machine_change_state( - &sci_port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL); -} - -static void scic_sds_port_ready_substate_configuring_exit(void *object) -{ - struct scic_sds_port *sci_port = object; - - scic_sds_port_suspend_port_task_scheduler(sci_port); -} - -/* --------------------------------------------------------------------------- */ - -static const struct sci_base_state scic_sds_port_ready_substate_table[] = { - [SCIC_SDS_PORT_READY_SUBSTATE_WAITING] = { - .enter_state = scic_sds_port_ready_substate_waiting_enter, - }, - [SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL] = { - .enter_state = scic_sds_port_ready_substate_operational_enter, - .exit_state = scic_sds_port_ready_substate_operational_exit - }, - [SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING] = { - .enter_state = scic_sds_port_ready_substate_configuring_enter, - .exit_state = scic_sds_port_ready_substate_configuring_exit - }, -}; - -/** - * - * @port: This is the struct scic_sds_port object on which the io request count will - * be decremented. - * @device: This is the struct scic_sds_remote_device object to which the io request - * is being directed. This parameter is not required to complete this - * operation. - * @io_request: This is the request that is being completed on this port - * object. This parameter is not required to complete this operation. - * - * This is a general complete io request handler for the struct scic_sds_port object. - * enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_port_general_complete_io_handler( - struct scic_sds_port *port, - struct scic_sds_remote_device *device, - struct scic_sds_request *io_request) -{ - scic_sds_port_decrement_request_count(port); - - return SCI_SUCCESS; -} - -/** - * scic_sds_port_stopped_state_start_handler() - stop a port from "started" - * - * @port: This is the struct scic_sds_port object which is cast into a - * struct scic_sds_port object. - * - * This function takes the struct scic_sds_port from a stopped state and - * attempts to start it. To start a port it must have no assiged devices and - * it must have at least one phy assigned to it. If those conditions are - * met then the port can transition to the ready state. - * enum sci_status - * SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION - * This struct scic_sds_port object could not be started because the port - * configuration is not valid. - * SCI_SUCCESS - * the start request is successful and the struct scic_sds_port object - * has transitioned to the SCI_BASE_PORT_STATE_READY. - */ -static enum sci_status -scic_sds_port_stopped_state_start_handler(struct scic_sds_port *sci_port) -{ - struct scic_sds_controller *scic = sci_port->owning_controller; - struct isci_host *ihost = scic_to_ihost(scic); - enum sci_status status = SCI_SUCCESS; - u32 phy_mask; - - if (sci_port->assigned_device_count > 0) { - /* - * @todo This is a start failure operation because - * there are still devices assigned to this port. - * There must be no devices assigned to a port on a - * start operation. - */ - return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; - } - - sci_port->timer_handle = - isci_timer_create(ihost, - sci_port, - scic_sds_port_timeout_handler); - - if (!sci_port->timer_handle) - return SCI_FAILURE_INSUFFICIENT_RESOURCES; - - if (sci_port->reserved_rni == SCU_DUMMY_INDEX) { - u16 rni = scic_sds_remote_node_table_allocate_remote_node( - &scic->available_remote_nodes, 1); - - if (rni != SCU_DUMMY_INDEX) - scic_sds_port_construct_dummy_rnc(sci_port, rni); - else - status = SCI_FAILURE_INSUFFICIENT_RESOURCES; - sci_port->reserved_rni = rni; - } - - if (sci_port->reserved_tci == SCU_DUMMY_INDEX) { - /* Allocate a TCI and remove the sequence nibble */ - u16 tci = scic_controller_allocate_io_tag(scic); - - if (tci != SCU_DUMMY_INDEX) - scic_sds_port_construct_dummy_task(sci_port, tci); - else - status = SCI_FAILURE_INSUFFICIENT_RESOURCES; - sci_port->reserved_tci = tci; - } - - if (status == SCI_SUCCESS) { - phy_mask = scic_sds_port_get_phys(sci_port); - - /* - * There are one or more phys assigned to this port. Make sure - * the port's phy mask is in fact legal and supported by the - * silicon. - */ - if (scic_sds_port_is_phy_mask_valid(sci_port, phy_mask) == true) { - sci_base_state_machine_change_state( - &sci_port->state_machine, - SCI_BASE_PORT_STATE_READY); - - return SCI_SUCCESS; - } else - status = SCI_FAILURE; - } - - if (status != SCI_SUCCESS) - scic_sds_port_destroy_dummy_resources(sci_port); - - return status; -} - -/* - * This method takes the struct scic_sds_port that is in a stopped state and handles a - * stop request. This function takes no action. enum sci_status SCI_SUCCESS the - * stop request is successful as the struct scic_sds_port object is already stopped. - */ -static enum sci_status scic_sds_port_stopped_state_stop_handler( - struct scic_sds_port *port) -{ - /* We are already stopped so there is nothing to do here */ - return SCI_SUCCESS; -} - -/* - * This method takes the struct scic_sds_port that is in a stopped state and handles - * the destruct request. The stopped state is the only state in which the - * struct scic_sds_port can be destroyed. This function causes the port object to - * transition to the SCI_BASE_PORT_STATE_FINAL. enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_port_stopped_state_destruct_handler( - struct scic_sds_port *port) -{ - sci_base_state_machine_stop(&port->state_machine); - - return SCI_SUCCESS; -} - -/* - * This method takes the struct scic_sds_port that is in a stopped state and handles - * the add phy request. In MPC mode the only time a phy can be added to a port - * is in the SCI_BASE_PORT_STATE_STOPPED. enum sci_status - * SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION is returned when the phy can not - * be added to the port. SCI_SUCCESS if the phy is added to the port. - */ -static enum sci_status scic_sds_port_stopped_state_add_phy_handler( - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - struct sci_sas_address port_sas_address; - - /* Read the port assigned SAS Address if there is one */ - scic_sds_port_get_sas_address(port, &port_sas_address); - - if (port_sas_address.high != 0 && port_sas_address.low != 0) { - struct sci_sas_address phy_sas_address; - - /* - * Make sure that the PHY SAS Address matches the SAS Address - * for this port. */ - scic_sds_phy_get_sas_address(phy, &phy_sas_address); - - if ( - (port_sas_address.high != phy_sas_address.high) - || (port_sas_address.low != phy_sas_address.low) - ) { - return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; - } - } - - return scic_sds_port_set_phy(port, phy); -} - -/* - * This method takes the struct scic_sds_port that is in a stopped state and handles - * the remove phy request. In MPC mode the only time a phy can be removed from - * a port is in the SCI_BASE_PORT_STATE_STOPPED. enum sci_status - * SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION is returned when the phy can not - * be added to the port. SCI_SUCCESS if the phy is added to the port. - */ -static enum sci_status scic_sds_port_stopped_state_remove_phy_handler( - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - return scic_sds_port_clear_phy(port, phy); -} - -/* - * **************************************************************************** - * * READY STATE HANDLERS - * **************************************************************************** */ - -/* - * **************************************************************************** - * * RESETTING STATE HANDLERS - * **************************************************************************** */ - -/* - * **************************************************************************** - * * STOPPING STATE HANDLERS - * **************************************************************************** */ - -/* - * This method takes the struct scic_sds_port that is in a stopping state and handles - * the complete io request. Should the request count reach 0 then the port - * object will transition to the stopped state. enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_port_stopping_state_complete_io_handler( - struct scic_sds_port *sci_port, - struct scic_sds_remote_device *device, - struct scic_sds_request *io_request) -{ - scic_sds_port_decrement_request_count(sci_port); - - if (sci_port->started_request_count == 0) { - sci_base_state_machine_change_state(&sci_port->state_machine, - SCI_BASE_PORT_STATE_STOPPED); - } - - return SCI_SUCCESS; -} - -/* - * **************************************************************************** - * * RESETTING STATE HANDLERS - * **************************************************************************** */ - -/** - * - * @port: This is the port object which is being requested to stop. - * - * This method will stop a failed port. This causes a transition to the - * stopping state. enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_port_reset_state_stop_handler( - struct scic_sds_port *port) -{ - sci_base_state_machine_change_state( - &port->state_machine, - SCI_BASE_PORT_STATE_STOPPING - ); - - return SCI_SUCCESS; -} - -/* - * This method will transition a failed port to its ready state. The port - * failed because a hard reset request timed out but at some time later one or - * more phys in the port became ready. enum sci_status SCI_SUCCESS - */ -static void scic_sds_port_reset_state_link_up_handler( - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - /* - * / @todo We should make sure that the phy that has gone link up is the same - * / one on which we sent the reset. It is possible that the phy on - * / which we sent the reset is not the one that has gone link up and we - * / want to make sure that phy being reset comes back. Consider the - * / case where a reset is sent but before the hardware processes the - * / reset it get a link up on the port because of a hot plug event. - * / because of the reset request this phy will go link down almost - * / immediately. */ - - /* - * In the resetting state we don't notify the user regarding - * link up and link down notifications. */ - scic_sds_port_general_link_up_handler(port, phy, false); -} - -/* - * This method process link down notifications that occur during a port reset - * operation. Link downs can occur during the reset operation. enum sci_status - * SCI_SUCCESS - */ -static void scic_sds_port_reset_state_link_down_handler( - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - /* - * In the resetting state we don't notify the user regarding - * link up and link down notifications. */ - scic_sds_port_deactivate_phy(port, phy, false); -} - -static struct scic_sds_port_state_handler -scic_sds_port_state_handler_table[SCI_BASE_PORT_MAX_STATES] = -{ - /* SCI_BASE_PORT_STATE_STOPPED */ - { - scic_sds_port_stopped_state_start_handler, - scic_sds_port_stopped_state_stop_handler, - scic_sds_port_stopped_state_destruct_handler, - scic_sds_port_default_reset_handler, - scic_sds_port_stopped_state_add_phy_handler, - scic_sds_port_stopped_state_remove_phy_handler, - scic_sds_port_default_frame_handler, - scic_sds_port_default_event_handler, - scic_sds_port_default_link_up_handler, - scic_sds_port_default_link_down_handler, - scic_sds_port_default_start_io_handler, - scic_sds_port_default_complete_io_handler - }, - /* SCI_BASE_PORT_STATE_STOPPING */ - { - scic_sds_port_default_start_handler, - scic_sds_port_default_stop_handler, - scic_sds_port_default_destruct_handler, - scic_sds_port_default_reset_handler, - scic_sds_port_default_add_phy_handler, - scic_sds_port_default_remove_phy_handler, - scic_sds_port_default_frame_handler, - scic_sds_port_default_event_handler, - scic_sds_port_default_link_up_handler, - scic_sds_port_default_link_down_handler, - scic_sds_port_default_start_io_handler, - scic_sds_port_stopping_state_complete_io_handler - }, - /* SCI_BASE_PORT_STATE_READY */ - { - scic_sds_port_default_start_handler, - scic_sds_port_default_stop_handler, - scic_sds_port_default_destruct_handler, - scic_sds_port_default_reset_handler, - scic_sds_port_default_add_phy_handler, - scic_sds_port_default_remove_phy_handler, - scic_sds_port_default_frame_handler, - scic_sds_port_default_event_handler, - scic_sds_port_default_link_up_handler, - scic_sds_port_default_link_down_handler, - scic_sds_port_default_start_io_handler, - scic_sds_port_general_complete_io_handler - }, - /* SCI_BASE_PORT_STATE_RESETTING */ - { - scic_sds_port_default_start_handler, - scic_sds_port_reset_state_stop_handler, - scic_sds_port_default_destruct_handler, - scic_sds_port_default_reset_handler, - scic_sds_port_default_add_phy_handler, - scic_sds_port_default_remove_phy_handler, - scic_sds_port_default_frame_handler, - scic_sds_port_default_event_handler, - scic_sds_port_reset_state_link_up_handler, - scic_sds_port_reset_state_link_down_handler, - scic_sds_port_default_start_io_handler, - scic_sds_port_general_complete_io_handler - }, - /* SCI_BASE_PORT_STATE_FAILED */ - { - scic_sds_port_default_start_handler, - scic_sds_port_default_stop_handler, - scic_sds_port_default_destruct_handler, - scic_sds_port_default_reset_handler, - scic_sds_port_default_add_phy_handler, - scic_sds_port_default_remove_phy_handler, - scic_sds_port_default_frame_handler, - scic_sds_port_default_event_handler, - scic_sds_port_default_link_up_handler, - scic_sds_port_default_link_down_handler, - scic_sds_port_default_start_io_handler, - scic_sds_port_general_complete_io_handler - } -}; - -/* - * ****************************************************************************** - * * PORT STATE PRIVATE METHODS - * ****************************************************************************** */ - -/** - * - * @sci_port: This is the port object which to suspend. - * - * This method will enable the SCU Port Task Scheduler for this port object but - * will leave the port task scheduler in a suspended state. none - */ -static void -scic_sds_port_enable_port_task_scheduler(struct scic_sds_port *port) -{ - u32 pts_control_value; - - pts_control_value = readl(&port->port_task_scheduler_registers->control); - pts_control_value |= SCU_PTSxCR_GEN_BIT(ENABLE) | SCU_PTSxCR_GEN_BIT(SUSPEND); - writel(pts_control_value, &port->port_task_scheduler_registers->control); -} - -/** - * - * @sci_port: This is the port object which to resume. - * - * This method will disable the SCU port task scheduler for this port object. - * none - */ -static void -scic_sds_port_disable_port_task_scheduler(struct scic_sds_port *port) -{ - u32 pts_control_value; - - pts_control_value = readl(&port->port_task_scheduler_registers->control); - pts_control_value &= - ~(SCU_PTSxCR_GEN_BIT(ENABLE) | SCU_PTSxCR_GEN_BIT(SUSPEND)); - writel(pts_control_value, &port->port_task_scheduler_registers->control); -} - -static void scic_sds_port_post_dummy_remote_node(struct scic_sds_port *sci_port) -{ - struct scic_sds_controller *scic = sci_port->owning_controller; - u8 phys_index = sci_port->physical_port_index; - union scu_remote_node_context *rnc; - u16 rni = sci_port->reserved_rni; - u32 command; - - rnc = &scic->remote_node_context_table[rni]; - rnc->ssp.is_valid = true; - - command = SCU_CONTEXT_COMMAND_POST_RNC_32 | - phys_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | rni; - - scic_sds_controller_post_request(scic, command); - - /* ensure hardware has seen the post rnc command and give it - * ample time to act before sending the suspend - */ - readl(&scic->smu_registers->interrupt_status); /* flush */ - udelay(10); - - command = SCU_CONTEXT_COMMAND_POST_RNC_SUSPEND_TX_RX | - phys_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | rni; - - scic_sds_controller_post_request(scic, command); -} - -static void scic_sds_port_invalidate_dummy_remote_node(struct scic_sds_port *sci_port) -{ - struct scic_sds_controller *scic = sci_port->owning_controller; - u8 phys_index = sci_port->physical_port_index; - union scu_remote_node_context *rnc; - u16 rni = sci_port->reserved_rni; - u32 command; - - rnc = &scic->remote_node_context_table[rni]; - - rnc->ssp.is_valid = false; - - /* ensure the preceding tc abort request has reached the - * controller and give it ample time to act before posting the rnc - * invalidate - */ - readl(&scic->smu_registers->interrupt_status); /* flush */ - udelay(10); - - command = SCU_CONTEXT_COMMAND_POST_RNC_INVALIDATE | - phys_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | rni; - - scic_sds_controller_post_request(scic, command); -} - -/* - * ****************************************************************************** - * * PORT STATE METHODS - * ****************************************************************************** */ - -/** - * - * @object: This is the object which is cast to a struct scic_sds_port object. - * - * This method will perform the actions required by the struct scic_sds_port on - * entering the SCI_BASE_PORT_STATE_STOPPED. This function sets the stopped - * state handlers for the struct scic_sds_port object and disables the port task - * scheduler in the hardware. none - */ -static void scic_sds_port_stopped_state_enter(void *object) -{ - struct scic_sds_port *sci_port = object; - - scic_sds_port_set_base_state_handlers( - sci_port, SCI_BASE_PORT_STATE_STOPPED - ); - - if ( - SCI_BASE_PORT_STATE_STOPPING - == sci_port->state_machine.previous_state_id - ) { - /* - * If we enter this state becasuse of a request to stop - * the port then we want to disable the hardwares port - * task scheduler. */ - scic_sds_port_disable_port_task_scheduler(sci_port); - } -} - -/** - * - * @object: This is the object which is cast to a struct scic_sds_port object. - * - * This method will perform the actions required by the struct scic_sds_port on - * exiting the SCI_BASE_STATE_STOPPED. This function enables the SCU hardware - * port task scheduler. none - */ -static void scic_sds_port_stopped_state_exit(void *object) -{ - struct scic_sds_port *sci_port = object; - - /* Enable and suspend the port task scheduler */ - scic_sds_port_enable_port_task_scheduler(sci_port); -} - -/** - * scic_sds_port_ready_state_enter - - * @object: This is the object which is cast to a struct scic_sds_port object. - * - * This method will perform the actions required by the struct scic_sds_port on - * entering the SCI_BASE_PORT_STATE_READY. This function sets the ready state - * handlers for the struct scic_sds_port object, reports the port object as - * not ready and starts the ready substate machine. none - */ -static void scic_sds_port_ready_state_enter(void *object) -{ - struct scic_sds_port *sci_port = object; - struct scic_sds_controller *scic = sci_port->owning_controller; - struct isci_host *ihost = scic_to_ihost(scic); - struct isci_port *iport = sci_port_to_iport(sci_port); - u32 prev_state; - - /* Put the ready state handlers in place though they will not be there long */ - scic_sds_port_set_base_state_handlers(sci_port, SCI_BASE_PORT_STATE_READY); - - prev_state = sci_port->state_machine.previous_state_id; - if (prev_state == SCI_BASE_PORT_STATE_RESETTING) - isci_port_hard_reset_complete(iport, SCI_SUCCESS); - else - isci_port_not_ready(ihost, iport); - - /* Post and suspend the dummy remote node context for this port. */ - scic_sds_port_post_dummy_remote_node(sci_port); - - /* Start the ready substate machine */ - sci_base_state_machine_start(&sci_port->ready_substate_machine); -} - -static void scic_sds_port_ready_state_exit(void *object) -{ - struct scic_sds_port *sci_port = object; - - sci_base_state_machine_stop(&sci_port->ready_substate_machine); - scic_sds_port_invalidate_dummy_remote_node(sci_port); -} - -/** - * - * @object: This is the object which is cast to a struct scic_sds_port object. - * - * This method will perform the actions required by the struct scic_sds_port on - * entering the SCI_BASE_PORT_STATE_RESETTING. This function sets the resetting - * state handlers for the struct scic_sds_port object. none - */ -static void scic_sds_port_resetting_state_enter(void *object) -{ - struct scic_sds_port *sci_port = object; - - scic_sds_port_set_base_state_handlers( - sci_port, SCI_BASE_PORT_STATE_RESETTING - ); -} - -/** - * - * @object: This is the object which is cast to a struct scic_sds_port object. - * - * This function will perform the actions required by the - * struct scic_sds_port on - * exiting the SCI_BASE_STATE_RESETTING. This function does nothing. none - */ -static inline void scic_sds_port_resetting_state_exit(void *object) -{ - struct scic_sds_port *sci_port = object; - - isci_timer_stop(sci_port->timer_handle); -} - -/** - * - * @object: This is the void object which is cast to a - * struct scic_sds_port object. - * - * This method will perform the actions required by the struct scic_sds_port on - * entering the SCI_BASE_PORT_STATE_STOPPING. This function sets the stopping - * state handlers for the struct scic_sds_port object. none - */ -static void scic_sds_port_stopping_state_enter(void *object) -{ - struct scic_sds_port *sci_port = object; - - scic_sds_port_set_base_state_handlers( - sci_port, SCI_BASE_PORT_STATE_STOPPING - ); -} - -/** - * - * @object: This is the object which is cast to a struct scic_sds_port object. - * - * This function will perform the actions required by the - * struct scic_sds_port on - * exiting the SCI_BASE_STATE_STOPPING. This function does nothing. none - */ -static inline void -scic_sds_port_stopping_state_exit(void *object) -{ - struct scic_sds_port *sci_port = object; - - isci_timer_stop(sci_port->timer_handle); - - scic_sds_port_destroy_dummy_resources(sci_port); -} - -/** - * - * @object: This is the object which is cast to a struct scic_sds_port object. - * - * This function will perform the actions required by the - * struct scic_sds_port on - * entering the SCI_BASE_PORT_STATE_STOPPING. This function sets the stopping - * state handlers for the struct scic_sds_port object. none - */ -static void scic_sds_port_failed_state_enter(void *object) -{ - struct scic_sds_port *sci_port = object; - struct isci_port *iport = sci_port_to_iport(sci_port); - - scic_sds_port_set_base_state_handlers(sci_port, - SCI_BASE_PORT_STATE_FAILED); - - isci_port_hard_reset_complete(iport, SCI_FAILURE_TIMEOUT); -} - -/* --------------------------------------------------------------------------- */ - -static const struct sci_base_state scic_sds_port_state_table[] = { - [SCI_BASE_PORT_STATE_STOPPED] = { - .enter_state = scic_sds_port_stopped_state_enter, - .exit_state = scic_sds_port_stopped_state_exit - }, - [SCI_BASE_PORT_STATE_STOPPING] = { - .enter_state = scic_sds_port_stopping_state_enter, - .exit_state = scic_sds_port_stopping_state_exit - }, - [SCI_BASE_PORT_STATE_READY] = { - .enter_state = scic_sds_port_ready_state_enter, - .exit_state = scic_sds_port_ready_state_exit - }, - [SCI_BASE_PORT_STATE_RESETTING] = { - .enter_state = scic_sds_port_resetting_state_enter, - .exit_state = scic_sds_port_resetting_state_exit - }, - [SCI_BASE_PORT_STATE_FAILED] = { - .enter_state = scic_sds_port_failed_state_enter, - } -}; - -void scic_sds_port_construct(struct scic_sds_port *sci_port, u8 index, - struct scic_sds_controller *scic) -{ - sci_base_state_machine_construct(&sci_port->state_machine, - sci_port, - scic_sds_port_state_table, - SCI_BASE_PORT_STATE_STOPPED); - - sci_base_state_machine_start(&sci_port->state_machine); - - sci_base_state_machine_construct(&sci_port->ready_substate_machine, - sci_port, - scic_sds_port_ready_substate_table, - SCIC_SDS_PORT_READY_SUBSTATE_WAITING); - - sci_port->logical_port_index = SCIC_SDS_DUMMY_PORT; - sci_port->physical_port_index = index; - sci_port->active_phy_mask = 0; - - sci_port->owning_controller = scic; - - sci_port->started_request_count = 0; - sci_port->assigned_device_count = 0; - - sci_port->reserved_rni = SCU_DUMMY_INDEX; - sci_port->reserved_tci = SCU_DUMMY_INDEX; - - sci_port->timer_handle = NULL; - sci_port->port_task_scheduler_registers = NULL; - - for (index = 0; index < SCI_MAX_PHYS; index++) - sci_port->phy_table[index] = NULL; -} diff --git a/drivers/scsi/isci/core/scic_sds_port.h b/drivers/scsi/isci/core/scic_sds_port.h deleted file mode 100644 index a351525b1c4..00000000000 --- a/drivers/scsi/isci/core/scic_sds_port.h +++ /dev/null @@ -1,435 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef _SCIC_SDS_PORT_H_ -#define _SCIC_SDS_PORT_H_ - -#include -#include "isci.h" -#include "sas.h" -#include "registers.h" -#include "state_machine.h" - -struct scic_sds_controller; -struct scic_sds_phy; -struct scic_sds_remote_device; -struct scic_sds_request; - -#define SCIC_SDS_DUMMY_PORT 0xFF - -/** - * enum SCIC_SDS_PORT_READY_SUBSTATES - - * - * This enumeration depicts all of the states for the core port ready substate - * machine. - */ -enum scic_sds_port_ready_substates { - /** - * The substate where the port is started and ready but has no - * active phys. - */ - SCIC_SDS_PORT_READY_SUBSTATE_WAITING, - - /** - * The substate where the port is started and ready and there is - * at least one phy operational. - */ - SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL, - - /** - * The substate where the port is started and there was an - * add/remove phy event. This state is only used in Automatic - * Port Configuration Mode (APC) - */ - SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING, - - SCIC_SDS_PORT_READY_MAX_SUBSTATES -}; - -/** - * enum scic_sds_port_states - This enumeration depicts all the states for the - * common port state machine. - * - * - */ -enum scic_sds_port_states { - /** - * This state indicates that the port has successfully been stopped. - * In this state no new IO operations are permitted. - * This state is entered from the STOPPING state. - */ - SCI_BASE_PORT_STATE_STOPPED, - - /** - * This state indicates that the port is in the process of stopping. - * In this state no new IO operations are permitted, but existing IO - * operations are allowed to complete. - * This state is entered from the READY state. - */ - SCI_BASE_PORT_STATE_STOPPING, - - /** - * This state indicates the port is now ready. Thus, the user is - * able to perform IO operations on this port. - * This state is entered from the STARTING state. - */ - SCI_BASE_PORT_STATE_READY, - - /** - * This state indicates the port is in the process of performing a hard - * reset. Thus, the user is unable to perform IO operations on this - * port. - * This state is entered from the READY state. - */ - SCI_BASE_PORT_STATE_RESETTING, - - /** - * This state indicates the port has failed a reset request. This state - * is entered when a port reset request times out. - * This state is entered from the RESETTING state. - */ - SCI_BASE_PORT_STATE_FAILED, - - SCI_BASE_PORT_MAX_STATES - -}; - -/** - * struct scic_sds_port - * - * The core port object provides the the abstraction for an SCU port. - */ -struct scic_sds_port { - - /** - * This field contains the information for the base port state machine. - */ - struct sci_base_state_machine state_machine; - - /** - * This field is the port index that is reported to the SCI USER. - * This allows the actual hardware physical port to change without - * the SCI USER getting a different answer for the get port index. - */ - u8 logical_port_index; - - /** - * This field is the port index used to program the SCU hardware. - */ - u8 physical_port_index; - - /** - * This field contains the active phy mask for the port. - * This mask is used in conjunction with the phy state to determine - * which phy to select for some port operations. - */ - u8 active_phy_mask; - - u16 reserved_rni; - u16 reserved_tci; - - /** - * This field contains the count of the io requests started on this port - * object. It is used to control controller shutdown. - */ - u32 started_request_count; - - /** - * This field contains the number of devices assigned to this port. - * It is used to control port start requests. - */ - u32 assigned_device_count; - - /** - * This field contains the reason for the port not going ready. It is - * assigned in the state handlers and used in the state transition. - */ - u32 not_ready_reason; - - /** - * This field is the table of phys assigned to the port. - */ - struct scic_sds_phy *phy_table[SCI_MAX_PHYS]; - - /** - * This field is a pointer back to the controller that owns this - * port object. - */ - struct scic_sds_controller *owning_controller; - - /** - * This field contains the port start/stop timer handle. - */ - void *timer_handle; - - /** - * This field points to the current set of state handlers for this port - * object. These state handlers are assigned at each enter state of - * the state machine. - */ - struct scic_sds_port_state_handler *state_handlers; - - /** - * This field is the ready substate machine for the port. - */ - struct sci_base_state_machine ready_substate_machine; - - /* / Memory mapped hardware register space */ - - /** - * This field is the pointer to the port task scheduler registers - * for the SCU hardware. - */ - struct scu_port_task_scheduler_registers __iomem - *port_task_scheduler_registers; - - /** - * This field is identical for all port objects and points to the port - * task scheduler group PE configuration registers. - * It is used to assign PEs to a port. - */ - u32 __iomem *port_pe_configuration_register; - - /** - * This field is the VIIT register space for ths port object. - */ - struct scu_viit_entry __iomem *viit_registers; - -}; - -typedef enum sci_status (*scic_sds_port_handler_t)(struct scic_sds_port *); - -typedef enum sci_status (*scic_sds_port_phy_handler_t)(struct scic_sds_port *, - struct scic_sds_phy *); - -typedef enum sci_status (*scic_sds_port_reset_handler_t)(struct scic_sds_port *, - u32 timeout); - -typedef enum sci_status (*scic_sds_port_event_handler_t)(struct scic_sds_port *, u32); - -typedef enum sci_status (*scic_sds_port_frame_handler_t)(struct scic_sds_port *, u32); - -typedef void (*scic_sds_port_link_handler_t)(struct scic_sds_port *, struct scic_sds_phy *); - -typedef enum sci_status (*scic_sds_port_io_request_handler_t)(struct scic_sds_port *, - struct scic_sds_remote_device *, - struct scic_sds_request *); - -struct scic_sds_port_state_handler { - /** - * The start_handler specifies the method invoked when a user - * attempts to start a port. - */ - scic_sds_port_handler_t start_handler; - - /** - * The stop_handler specifies the method invoked when a user - * attempts to stop a port. - */ - scic_sds_port_handler_t stop_handler; - - /** - * The destruct_handler specifies the method invoked when attempting to - * destruct a port. - */ - scic_sds_port_handler_t destruct_handler; - - /** - * The reset_handler specifies the method invoked when a user - * attempts to hard reset a port. - */ - scic_sds_port_reset_handler_t reset_handler; - - /** - * The add_phy_handler specifies the method invoked when a user - * attempts to add another phy into the port. - */ - scic_sds_port_phy_handler_t add_phy_handler; - - /** - * The remove_phy_handler specifies the method invoked when a user - * attempts to remove a phy from the port. - */ - scic_sds_port_phy_handler_t remove_phy_handler; - - scic_sds_port_frame_handler_t frame_handler; - scic_sds_port_event_handler_t event_handler; - - scic_sds_port_link_handler_t link_up_handler; - scic_sds_port_link_handler_t link_down_handler; - - scic_sds_port_io_request_handler_t start_io_handler; - scic_sds_port_io_request_handler_t complete_io_handler; - -}; - -/** - * scic_sds_port_get_controller() - - * - * Helper macro to get the owning controller of this port - */ -#define scic_sds_port_get_controller(this_port) \ - ((this_port)->owning_controller) - -/** - * scic_sds_port_set_base_state_handlers() - - * - * This macro will change the state handlers to those of the specified state id - */ -#define scic_sds_port_set_base_state_handlers(this_port, state_id) \ - scic_sds_port_set_state_handlers(\ - (this_port), &scic_sds_port_state_handler_table[(state_id)]) - -/** - * scic_sds_port_set_state_handlers() - - * - * Helper macro to set the port object state handlers - */ -#define scic_sds_port_set_state_handlers(this_port, handlers) \ - ((this_port)->state_handlers = (handlers)) - -/** - * scic_sds_port_get_index() - - * - * This macro returns the physical port index for this port object - */ -#define scic_sds_port_get_index(this_port) \ - ((this_port)->physical_port_index) - - -static inline void scic_sds_port_decrement_request_count(struct scic_sds_port *sci_port) -{ - if (WARN_ONCE(sci_port->started_request_count == 0, - "%s: tried to decrement started_request_count past 0!?", - __func__)) - /* pass */; - else - sci_port->started_request_count--; -} - -#define scic_sds_port_active_phy(port, phy) \ - (((port)->active_phy_mask & (1 << (phy)->phy_index)) != 0) - -void scic_sds_port_construct( - struct scic_sds_port *sci_port, - u8 port_index, - struct scic_sds_controller *scic); - -enum sci_status scic_sds_port_initialize( - struct scic_sds_port *sci_port, - void __iomem *port_task_scheduler_registers, - void __iomem *port_configuration_regsiter, - void __iomem *viit_registers); - -enum sci_status scic_sds_port_add_phy( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy); - -enum sci_status scic_sds_port_remove_phy( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy); - -void scic_sds_port_setup_transports( - struct scic_sds_port *sci_port, - u32 device_id); - - -void scic_sds_port_deactivate_phy( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy, - bool do_notify_user); - -bool scic_sds_port_link_detected( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy); - -void scic_sds_port_link_up( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy); - -void scic_sds_port_link_down( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy); - -enum sci_status scic_sds_port_start_io( - struct scic_sds_port *sci_port, - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req); - -enum sci_status scic_sds_port_complete_io( - struct scic_sds_port *sci_port, - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req); - -enum sas_linkrate scic_sds_port_get_max_allowed_speed( - struct scic_sds_port *sci_port); - -void scic_sds_port_broadcast_change_received( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy); - -bool scic_sds_port_is_valid_phy_assignment( - struct scic_sds_port *sci_port, - u32 phy_index); - -void scic_sds_port_get_sas_address( - struct scic_sds_port *sci_port, - struct sci_sas_address *sas_address); - -void scic_sds_port_get_attached_sas_address( - struct scic_sds_port *sci_port, - struct sci_sas_address *sas_address); - -#endif /* _SCIC_SDS_PORT_H_ */ diff --git a/drivers/scsi/isci/core/scic_sds_port_configuration_agent.c b/drivers/scsi/isci/core/scic_sds_port_configuration_agent.c deleted file mode 100644 index a5871fddc09..00000000000 --- a/drivers/scsi/isci/core/scic_sds_port_configuration_agent.c +++ /dev/null @@ -1,827 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "host.h" -#include "scic_sds_port_configuration_agent.h" -#include "timers.h" - -#define SCIC_SDS_MPC_RECONFIGURATION_TIMEOUT (10) -#define SCIC_SDS_APC_RECONFIGURATION_TIMEOUT (10) -#define SCIC_SDS_APC_WAIT_LINK_UP_NOTIFICATION (100) - -enum SCIC_SDS_APC_ACTIVITY { - SCIC_SDS_APC_SKIP_PHY, - SCIC_SDS_APC_ADD_PHY, - SCIC_SDS_APC_START_TIMER, - - SCIC_SDS_APC_ACTIVITY_MAX -}; - -/* - * ****************************************************************************** - * General port configuration agent routines - * ****************************************************************************** */ - -/** - * - * @address_one: A SAS Address to be compared. - * @address_two: A SAS Address to be compared. - * - * Compare the two SAS Address and if SAS Address One is greater than SAS - * Address Two then return > 0 else if SAS Address One is less than SAS Address - * Two return < 0 Otherwise they are the same return 0 A signed value of x > 0 - * > y where x is returned for Address One > Address Two y is returned for - * Address One < Address Two 0 is returned ofr Address One = Address Two - */ -static s32 sci_sas_address_compare( - struct sci_sas_address address_one, - struct sci_sas_address address_two) -{ - if (address_one.high > address_two.high) { - return 1; - } else if (address_one.high < address_two.high) { - return -1; - } else if (address_one.low > address_two.low) { - return 1; - } else if (address_one.low < address_two.low) { - return -1; - } - - /* The two SAS Address must be identical */ - return 0; -} - -/** - * - * @controller: The controller object used for the port search. - * @phy: The phy object to match. - * - * This routine will find a matching port for the phy. This means that the - * port and phy both have the same broadcast sas address and same received sas - * address. The port address or the NULL if there is no matching - * port. port address if the port can be found to match the phy. - * NULL if there is no matching port for the phy. - */ -static struct scic_sds_port *scic_sds_port_configuration_agent_find_port( - struct scic_sds_controller *scic, - struct scic_sds_phy *phy) -{ - u8 i; - struct sci_sas_address port_sas_address; - struct sci_sas_address port_attached_device_address; - struct sci_sas_address phy_sas_address; - struct sci_sas_address phy_attached_device_address; - - /* - * Since this phy can be a member of a wide port check to see if one or - * more phys match the sent and received SAS address as this phy in which - * case it should participate in the same port. - */ - scic_sds_phy_get_sas_address(phy, &phy_sas_address); - scic_sds_phy_get_attached_sas_address(phy, &phy_attached_device_address); - - for (i = 0; i < scic->logical_port_entries; i++) { - struct isci_host *ihost = scic_to_ihost(scic); - struct scic_sds_port *sci_port = &ihost->ports[i].sci; - - scic_sds_port_get_sas_address(sci_port, &port_sas_address); - scic_sds_port_get_attached_sas_address(sci_port, &port_attached_device_address); - - if (sci_sas_address_compare(port_sas_address, phy_sas_address) == 0 && - sci_sas_address_compare(port_attached_device_address, phy_attached_device_address) == 0) - return sci_port; - } - - return NULL; -} - -/** - * - * @controller: This is the controller object that contains the port agent - * @port_agent: This is the port configruation agent for the controller. - * - * This routine will validate the port configuration is correct for the SCU - * hardware. The SCU hardware allows for port configurations as follows. LP0 - * -> (PE0), (PE0, PE1), (PE0, PE1, PE2, PE3) LP1 -> (PE1) LP2 -> (PE2), (PE2, - * PE3) LP3 -> (PE3) enum sci_status SCI_SUCCESS the port configuration is valid for - * this port configuration agent. SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION - * the port configuration is not valid for this port configuration agent. - */ -static enum sci_status scic_sds_port_configuration_agent_validate_ports( - struct scic_sds_controller *controller, - struct scic_sds_port_configuration_agent *port_agent) -{ - struct isci_host *ihost = scic_to_ihost(controller); - struct sci_sas_address first_address; - struct sci_sas_address second_address; - - /* - * Sanity check the max ranges for all the phys the max index - * is always equal to the port range index */ - if (port_agent->phy_valid_port_range[0].max_index != 0 || - port_agent->phy_valid_port_range[1].max_index != 1 || - port_agent->phy_valid_port_range[2].max_index != 2 || - port_agent->phy_valid_port_range[3].max_index != 3) - return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; - - /* - * This is a request to configure a single x4 port or at least attempt - * to make all the phys into a single port */ - if (port_agent->phy_valid_port_range[0].min_index == 0 && - port_agent->phy_valid_port_range[1].min_index == 0 && - port_agent->phy_valid_port_range[2].min_index == 0 && - port_agent->phy_valid_port_range[3].min_index == 0) - return SCI_SUCCESS; - - /* - * This is a degenerate case where phy 1 and phy 2 are assigned - * to the same port this is explicitly disallowed by the hardware - * unless they are part of the same x4 port and this condition was - * already checked above. */ - if (port_agent->phy_valid_port_range[2].min_index == 1) { - return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; - } - - /* - * PE0 and PE3 can never have the same SAS Address unless they - * are part of the same x4 wide port and we have already checked - * for this condition. */ - scic_sds_phy_get_sas_address(&ihost->phys[0].sci, &first_address); - scic_sds_phy_get_sas_address(&ihost->phys[3].sci, &second_address); - - if (sci_sas_address_compare(first_address, second_address) == 0) { - return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; - } - - /* - * PE0 and PE1 are configured into a 2x1 ports make sure that the - * SAS Address for PE0 and PE2 are different since they can not be - * part of the same port. */ - if (port_agent->phy_valid_port_range[0].min_index == 0 && - port_agent->phy_valid_port_range[1].min_index == 1) { - scic_sds_phy_get_sas_address(&ihost->phys[0].sci, &first_address); - scic_sds_phy_get_sas_address(&ihost->phys[2].sci, &second_address); - - if (sci_sas_address_compare(first_address, second_address) == 0) { - return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; - } - } - - /* - * PE2 and PE3 are configured into a 2x1 ports make sure that the - * SAS Address for PE1 and PE3 are different since they can not be - * part of the same port. */ - if (port_agent->phy_valid_port_range[2].min_index == 2 && - port_agent->phy_valid_port_range[3].min_index == 3) { - scic_sds_phy_get_sas_address(&ihost->phys[1].sci, &first_address); - scic_sds_phy_get_sas_address(&ihost->phys[3].sci, &second_address); - - if (sci_sas_address_compare(first_address, second_address) == 0) { - return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; - } - } - - return SCI_SUCCESS; -} - -/* - * ****************************************************************************** - * Manual port configuration agent routines - * ****************************************************************************** */ - -/** - * - * - * This routine will verify that all of the phys in the same port are using the - * same SAS address. - */ -static enum sci_status scic_sds_mpc_agent_validate_phy_configuration( - struct scic_sds_controller *controller, - struct scic_sds_port_configuration_agent *port_agent) -{ - struct isci_host *ihost = scic_to_ihost(controller); - u32 phy_mask; - u32 assigned_phy_mask; - struct sci_sas_address sas_address; - struct sci_sas_address phy_assigned_address; - u8 port_index; - u8 phy_index; - - assigned_phy_mask = 0; - sas_address.high = 0; - sas_address.low = 0; - - for (port_index = 0; port_index < SCI_MAX_PORTS; port_index++) { - phy_mask = controller->oem_parameters.sds1.ports[port_index].phy_mask; - - if (!phy_mask) - continue; - /* - * Make sure that one or more of the phys were not already assinged to - * a different port. */ - if ((phy_mask & ~assigned_phy_mask) == 0) { - return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; - } - - /* Find the starting phy index for this round through the loop */ - for (phy_index = 0; phy_index < SCI_MAX_PHYS; phy_index++) { - if ((phy_mask & (1 << phy_index)) == 0) - continue; - scic_sds_phy_get_sas_address(&ihost->phys[phy_index].sci, - &sas_address); - - /* - * The phy_index can be used as the starting point for the - * port range since the hardware starts all logical ports - * the same as the PE index. */ - port_agent->phy_valid_port_range[phy_index].min_index = port_index; - port_agent->phy_valid_port_range[phy_index].max_index = phy_index; - - if (phy_index != port_index) { - return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; - } - - break; - } - - /* - * See how many additional phys are being added to this logical port. - * Note: We have not moved the current phy_index so we will actually - * compare the startting phy with itself. - * This is expected and required to add the phy to the port. */ - while (phy_index < SCI_MAX_PHYS) { - if ((phy_mask & (1 << phy_index)) == 0) - continue; - scic_sds_phy_get_sas_address(&ihost->phys[phy_index].sci, - &phy_assigned_address); - - if (sci_sas_address_compare(sas_address, phy_assigned_address) != 0) { - /* - * The phy mask specified that this phy is part of the same port - * as the starting phy and it is not so fail this configuration */ - return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; - } - - port_agent->phy_valid_port_range[phy_index].min_index = port_index; - port_agent->phy_valid_port_range[phy_index].max_index = phy_index; - - scic_sds_port_add_phy(&ihost->ports[port_index].sci, - &ihost->phys[phy_index].sci); - - assigned_phy_mask |= (1 << phy_index); - } - - phy_index++; - } - - return scic_sds_port_configuration_agent_validate_ports(controller, port_agent); -} - -/** - * - * - * This timer routine is used to allow the SCI User to rediscover or change - * device objects before a new series of link up notifications because a link - * down has allowed a better port configuration. - */ -static void scic_sds_mpc_agent_timeout_handler(void *object) -{ - u8 index; - struct scic_sds_controller *scic = object; - struct isci_host *ihost = scic_to_ihost(scic); - struct scic_sds_port_configuration_agent *port_agent = &scic->port_agent; - u16 configure_phy_mask; - - port_agent->timer_pending = false; - - /* Find the mask of phys that are reported read but as yet unconfigured into a port */ - configure_phy_mask = ~port_agent->phy_configured_mask & port_agent->phy_ready_mask; - - for (index = 0; index < SCI_MAX_PHYS; index++) { - struct scic_sds_phy *sci_phy = &ihost->phys[index].sci; - - if (configure_phy_mask & (1 << index)) { - port_agent->link_up_handler(scic, port_agent, - scic_sds_phy_get_port(sci_phy), - sci_phy); - } - } -} - -/** - * - * @controller: This is the controller object that receives the link up - * notification. - * @port: This is the port object associated with the phy. If the is no - * associated port this is an NULL. - * @phy: This is the phy object which has gone ready. - * - * This method handles the manual port configuration link up notifications. - * Since all ports and phys are associate at initialization time we just turn - * around and notifiy the port object that there is a link up. If this PHY is - * not associated with a port there is no action taken. Is it possible to get a - * link up notification from a phy that has no assocoated port? - */ -static void scic_sds_mpc_agent_link_up( - struct scic_sds_controller *controller, - struct scic_sds_port_configuration_agent *port_agent, - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - /* - * If the port has an invalid handle then the phy was not assigned to - * a port. This is because the phy was not given the same SAS Address - * as the other PHYs in the port. */ - if (port != NULL) { - port_agent->phy_ready_mask |= (1 << scic_sds_phy_get_index(phy)); - - scic_sds_port_link_up(port, phy); - - if ((port->active_phy_mask & (1 << scic_sds_phy_get_index(phy))) != 0) { - port_agent->phy_configured_mask |= (1 << scic_sds_phy_get_index(phy)); - } - } -} - -/** - * - * @controller: This is the controller object that receives the link down - * notification. - * @port: This is the port object associated with the phy. If the is no - * associated port this is an NULL. The port is an invalid - * handle only if the phy was never port of this port. This happens when - * the phy is not broadcasting the same SAS address as the other phys in the - * assigned port. - * @phy: This is the phy object which has gone link down. - * - * This function handles the manual port configuration link down notifications. - * Since all ports and phys are associated at initialization time we just turn - * around and notifiy the port object of the link down event. If this PHY is - * not associated with a port there is no action taken. Is it possible to get a - * link down notification from a phy that has no assocoated port? - */ -static void scic_sds_mpc_agent_link_down( - struct scic_sds_controller *scic, - struct scic_sds_port_configuration_agent *port_agent, - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - if (sci_port != NULL) { - /* - * If we can form a new port from the remainder of the phys - * then we want to start the timer to allow the SCI User to - * cleanup old devices and rediscover the port before - * rebuilding the port with the phys that remain in the ready - * state. - */ - port_agent->phy_ready_mask &= - ~(1 << scic_sds_phy_get_index(sci_phy)); - port_agent->phy_configured_mask &= - ~(1 << scic_sds_phy_get_index(sci_phy)); - - /* - * Check to see if there are more phys waiting to be - * configured into a port. If there are allow the SCI User - * to tear down this port, if necessary, and then reconstruct - * the port after the timeout. - */ - if ((port_agent->phy_configured_mask == 0x0000) && - (port_agent->phy_ready_mask != 0x0000) && - !port_agent->timer_pending) { - port_agent->timer_pending = true; - - isci_timer_start(port_agent->timer, - SCIC_SDS_MPC_RECONFIGURATION_TIMEOUT); - } - - scic_sds_port_link_down(sci_port, sci_phy); - } -} - -/* - * ****************************************************************************** - * Automatic port configuration agent routines - * ****************************************************************************** */ - -/** - * - * - * This routine will verify that the phys are assigned a valid SAS address for - * automatic port configuration mode. - */ -static enum sci_status scic_sds_apc_agent_validate_phy_configuration( - struct scic_sds_controller *controller, - struct scic_sds_port_configuration_agent *port_agent) -{ - u8 phy_index; - u8 port_index; - struct sci_sas_address sas_address; - struct sci_sas_address phy_assigned_address; - struct isci_host *ihost = scic_to_ihost(controller); - - phy_index = 0; - - while (phy_index < SCI_MAX_PHYS) { - port_index = phy_index; - - /* Get the assigned SAS Address for the first PHY on the controller. */ - scic_sds_phy_get_sas_address(&ihost->phys[phy_index].sci, - &sas_address); - - while (++phy_index < SCI_MAX_PHYS) { - scic_sds_phy_get_sas_address(&ihost->phys[phy_index].sci, - &phy_assigned_address); - - /* Verify each of the SAS address are all the same for every PHY */ - if (sci_sas_address_compare(sas_address, phy_assigned_address) == 0) { - port_agent->phy_valid_port_range[phy_index].min_index = port_index; - port_agent->phy_valid_port_range[phy_index].max_index = phy_index; - } else { - port_agent->phy_valid_port_range[phy_index].min_index = phy_index; - port_agent->phy_valid_port_range[phy_index].max_index = phy_index; - break; - } - } - } - - return scic_sds_port_configuration_agent_validate_ports(controller, port_agent); -} - -/** - * - * @controller: This is the controller that to which the port agent is assigned. - * @port_agent: This is the port agent that is requesting the timer start - * operation. - * @phy: This is the phy that has caused the timer operation to be scheduled. - * - * This routine will restart the automatic port configuration timeout timer for - * the next time period. This could be caused by either a link down event or a - * link up event where we can not yet tell to which port a phy belongs. - */ -static inline void scic_sds_apc_agent_start_timer( - struct scic_sds_controller *scic, - struct scic_sds_port_configuration_agent *port_agent, - struct scic_sds_phy *sci_phy, - u32 timeout) -{ - if (port_agent->timer_pending) - isci_timer_stop(port_agent->timer); - - port_agent->timer_pending = true; - - isci_timer_start(port_agent->timer, timeout); -} - -/** - * - * @controller: This is the controller object that receives the link up - * notification. - * @phy: This is the phy object which has gone link up. - * - * This method handles the automatic port configuration for link up - * notifications. - */ -static void scic_sds_apc_agent_configure_ports( - struct scic_sds_controller *controller, - struct scic_sds_port_configuration_agent *port_agent, - struct scic_sds_phy *phy, - bool start_timer) -{ - u8 port_index; - enum sci_status status; - struct scic_sds_port *port; - enum SCIC_SDS_APC_ACTIVITY apc_activity = SCIC_SDS_APC_SKIP_PHY; - struct isci_host *ihost = scic_to_ihost(controller); - - port = scic_sds_port_configuration_agent_find_port(controller, phy); - - if (port != NULL) { - if (scic_sds_port_is_valid_phy_assignment(port, phy->phy_index)) - apc_activity = SCIC_SDS_APC_ADD_PHY; - else - apc_activity = SCIC_SDS_APC_SKIP_PHY; - } else { - /* - * There is no matching Port for this PHY so lets search through the - * Ports and see if we can add the PHY to its own port or maybe start - * the timer and wait to see if a wider port can be made. - * - * Note the break when we reach the condition of the port id == phy id */ - for ( - port_index = port_agent->phy_valid_port_range[phy->phy_index].min_index; - port_index <= port_agent->phy_valid_port_range[phy->phy_index].max_index; - port_index++ - ) { - - port = &ihost->ports[port_index].sci; - - /* First we must make sure that this PHY can be added to this Port. */ - if (scic_sds_port_is_valid_phy_assignment(port, phy->phy_index)) { - /* - * Port contains a PHY with a greater PHY ID than the current - * PHY that has gone link up. This phy can not be part of any - * port so skip it and move on. */ - if (port->active_phy_mask > (1 << phy->phy_index)) { - apc_activity = SCIC_SDS_APC_SKIP_PHY; - break; - } - - /* - * We have reached the end of our Port list and have not found - * any reason why we should not either add the PHY to the port - * or wait for more phys to become active. */ - if (port->physical_port_index == phy->phy_index) { - /* - * The Port either has no active PHYs. - * Consider that if the port had any active PHYs we would have - * or active PHYs with - * a lower PHY Id than this PHY. */ - if (apc_activity != SCIC_SDS_APC_START_TIMER) { - apc_activity = SCIC_SDS_APC_ADD_PHY; - } - - break; - } - - /* - * The current Port has no active PHYs and this PHY could be part - * of this Port. Since we dont know as yet setup to start the - * timer and see if there is a better configuration. */ - if (port->active_phy_mask == 0) { - apc_activity = SCIC_SDS_APC_START_TIMER; - } - } else if (port->active_phy_mask != 0) { - /* - * The Port has an active phy and the current Phy can not - * participate in this port so skip the PHY and see if - * there is a better configuration. */ - apc_activity = SCIC_SDS_APC_SKIP_PHY; - } - } - } - - /* - * Check to see if the start timer operations should instead map to an - * add phy operation. This is caused because we have been waiting to - * add a phy to a port but could not becuase the automatic port - * configuration engine had a choice of possible ports for the phy. - * Since we have gone through a timeout we are going to restrict the - * choice to the smallest possible port. */ - if ( - (start_timer == false) - && (apc_activity == SCIC_SDS_APC_START_TIMER) - ) { - apc_activity = SCIC_SDS_APC_ADD_PHY; - } - - switch (apc_activity) { - case SCIC_SDS_APC_ADD_PHY: - status = scic_sds_port_add_phy(port, phy); - - if (status == SCI_SUCCESS) { - port_agent->phy_configured_mask |= (1 << phy->phy_index); - } - break; - - case SCIC_SDS_APC_START_TIMER: - scic_sds_apc_agent_start_timer( - controller, port_agent, phy, SCIC_SDS_APC_WAIT_LINK_UP_NOTIFICATION - ); - break; - - case SCIC_SDS_APC_SKIP_PHY: - default: - /* do nothing the PHY can not be made part of a port at this time. */ - break; - } -} - -/** - * scic_sds_apc_agent_link_up - handle apc link up events - * @scic: This is the controller object that receives the link up - * notification. - * @sci_port: This is the port object associated with the phy. If the is no - * associated port this is an NULL. - * @sci_phy: This is the phy object which has gone link up. - * - * This method handles the automatic port configuration for link up - * notifications. Is it possible to get a link down notification from a phy - * that has no assocoated port? - */ -static void scic_sds_apc_agent_link_up(struct scic_sds_controller *scic, - struct scic_sds_port_configuration_agent *port_agent, - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - u8 phy_index = sci_phy->phy_index; - - if (!sci_port) { - /* the phy is not the part of this port */ - port_agent->phy_ready_mask |= 1 << phy_index; - scic_sds_apc_agent_configure_ports(scic, port_agent, sci_phy, true); - } else { - /* the phy is already the part of the port */ - u32 port_state = sci_port->state_machine.current_state_id; - - /* if the PORT'S state is resetting then the link up is from - * port hard reset in this case, we need to tell the port - * that link up is recieved - */ - BUG_ON(port_state != SCI_BASE_PORT_STATE_RESETTING); - port_agent->phy_ready_mask |= 1 << phy_index; - scic_sds_port_link_up(sci_port, sci_phy); - } -} - -/** - * - * @controller: This is the controller object that receives the link down - * notification. - * @port: This is the port object associated with the phy. If the is no - * associated port this is an NULL. - * @phy: This is the phy object which has gone link down. - * - * This method handles the automatic port configuration link down - * notifications. not associated with a port there is no action taken. Is it - * possible to get a link down notification from a phy that has no assocoated - * port? - */ -static void scic_sds_apc_agent_link_down( - struct scic_sds_controller *controller, - struct scic_sds_port_configuration_agent *port_agent, - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - port_agent->phy_ready_mask &= ~(1 << scic_sds_phy_get_index(phy)); - - if (port != NULL) { - if (port_agent->phy_configured_mask & (1 << phy->phy_index)) { - enum sci_status status; - - status = scic_sds_port_remove_phy(port, phy); - - if (status == SCI_SUCCESS) { - port_agent->phy_configured_mask &= ~(1 << phy->phy_index); - } - } - } -} - -/* configure the phys into ports when the timer fires */ -static void scic_sds_apc_agent_timeout_handler(void *object) -{ - u32 index; - struct scic_sds_port_configuration_agent *port_agent; - struct scic_sds_controller *scic = object; - struct isci_host *ihost = scic_to_ihost(scic); - u16 configure_phy_mask; - - port_agent = scic_sds_controller_get_port_configuration_agent(scic); - - port_agent->timer_pending = false; - - configure_phy_mask = ~port_agent->phy_configured_mask & port_agent->phy_ready_mask; - - if (!configure_phy_mask) - return; - - for (index = 0; index < SCI_MAX_PHYS; index++) { - if ((configure_phy_mask & (1 << index)) == 0) - continue; - - scic_sds_apc_agent_configure_ports(scic, port_agent, - &ihost->phys[index].sci, false); - } -} - -/* - * ****************************************************************************** - * Public port configuration agent routines - * ****************************************************************************** */ - -/** - * - * - * This method will construct the port configuration agent for operation. This - * call is universal for both manual port configuration and automatic port - * configuration modes. - */ -void scic_sds_port_configuration_agent_construct( - struct scic_sds_port_configuration_agent *port_agent) -{ - u32 index; - - port_agent->phy_configured_mask = 0x00; - port_agent->phy_ready_mask = 0x00; - - port_agent->link_up_handler = NULL; - port_agent->link_down_handler = NULL; - - port_agent->timer_pending = false; - port_agent->timer = NULL; - - for (index = 0; index < SCI_MAX_PORTS; index++) { - port_agent->phy_valid_port_range[index].min_index = 0; - port_agent->phy_valid_port_range[index].max_index = 0; - } -} - -enum sci_status scic_sds_port_configuration_agent_initialize( - struct scic_sds_controller *scic, - struct scic_sds_port_configuration_agent *port_agent) -{ - enum sci_status status = SCI_SUCCESS; - enum scic_port_configuration_mode mode; - struct isci_host *ihost = scic_to_ihost(scic); - - mode = scic->oem_parameters.sds1.controller.mode_type; - - if (mode == SCIC_PORT_MANUAL_CONFIGURATION_MODE) { - status = scic_sds_mpc_agent_validate_phy_configuration( - scic, port_agent); - - port_agent->link_up_handler = scic_sds_mpc_agent_link_up; - port_agent->link_down_handler = scic_sds_mpc_agent_link_down; - - port_agent->timer = isci_timer_create( - ihost, - scic, - scic_sds_mpc_agent_timeout_handler); - } else { - status = scic_sds_apc_agent_validate_phy_configuration( - scic, port_agent); - - port_agent->link_up_handler = scic_sds_apc_agent_link_up; - port_agent->link_down_handler = scic_sds_apc_agent_link_down; - - port_agent->timer = isci_timer_create( - ihost, - scic, - scic_sds_apc_agent_timeout_handler); - } - - /* Make sure we have actually gotten a timer */ - if ((status == SCI_SUCCESS) && (port_agent->timer == NULL)) { - dev_err(scic_to_dev(scic), - "%s: Controller 0x%p automatic port configuration " - "agent could not get timer.\n", - __func__, - scic); - - status = SCI_FAILURE; - } - - return status; -} diff --git a/drivers/scsi/isci/core/scic_sds_port_configuration_agent.h b/drivers/scsi/isci/core/scic_sds_port_configuration_agent.h deleted file mode 100644 index 7fd16170047..00000000000 --- a/drivers/scsi/isci/core/scic_sds_port_configuration_agent.h +++ /dev/null @@ -1,107 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * The full GNU General Public License is included in this distribution - * in the file called LICENSE.GPL. - * - * BSD LICENSE - * - * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef _SCIC_SDS_PORT_CONFIGURATION_AGENT_H_ -#define _SCIC_SDS_PORT_CONFIGURATION_AGENT_H_ - -/** - * This file contains the structures, constants and prototypes used for the - * core controller automatic port configuration engine. - * - * - */ - -#include "scic_sds_port.h" - -struct scic_sds_controller; -struct scic_sds_port_configuration_agent; -struct scic_sds_port; -struct scic_sds_phy; - -typedef void (*scic_sds_port_configuration_agent_phy_handler_t)( - struct scic_sds_controller *, - struct scic_sds_port_configuration_agent *, - struct scic_sds_port *, - struct scic_sds_phy * - ); - -struct SCIC_SDS_PORT_RANGE { - u8 min_index; - u8 max_index; -}; - -struct scic_sds_port_configuration_agent { - u16 phy_configured_mask; - u16 phy_ready_mask; - - struct SCIC_SDS_PORT_RANGE phy_valid_port_range[SCI_MAX_PHYS]; - - bool timer_pending; - - scic_sds_port_configuration_agent_phy_handler_t link_up_handler; - scic_sds_port_configuration_agent_phy_handler_t link_down_handler; - - void *timer; - -}; - -void scic_sds_port_configuration_agent_construct( - struct scic_sds_port_configuration_agent *port_agent); - -enum sci_status scic_sds_port_configuration_agent_initialize( - struct scic_sds_controller *controller, - struct scic_sds_port_configuration_agent *port_agent); - -#endif /* _SCIC_SDS_PORT_CONFIGURATION_AGENT_H_ */ diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index e1930da08d4..2bb9f1073e7 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -61,7 +61,6 @@ #include "probe_roms.h" #include "remote_device.h" #include "request.h" -#include "scic_sds_port_configuration_agent.h" #include "scu_completion_codes.h" #include "scu_event_codes.h" #include "registers.h" diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index 9c5d121ce79..784e1355e8e 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -55,7 +55,6 @@ #ifndef _SCI_HOST_H_ #define _SCI_HOST_H_ -#include "scic_config_parameters.h" #include "remote_device.h" #include "phy.h" #include "pool.h" @@ -64,11 +63,12 @@ #include "registers.h" #include "scu_unsolicited_frame.h" #include "unsolicited_frame_control.h" -#include "scic_sds_port_configuration_agent.h" +#include "probe_roms.h" struct scic_sds_request; struct scu_task_context; + /** * struct scic_power_control - * @@ -107,6 +107,24 @@ struct scic_power_control { }; +struct scic_sds_port_configuration_agent; +typedef void (*port_config_fn)(struct scic_sds_controller *, + struct scic_sds_port_configuration_agent *, + struct scic_sds_port *, struct scic_sds_phy *); + +struct scic_sds_port_configuration_agent { + u16 phy_configured_mask; + u16 phy_ready_mask; + struct { + u8 min_index; + u8 max_index; + } phy_valid_port_range[SCI_MAX_PHYS]; + bool timer_pending; + port_config_fn link_up_handler; + port_config_fn link_down_handler; + void *timer; +}; + /** * struct scic_sds_controller - * @@ -800,4 +818,11 @@ u16 scic_controller_allocate_io_tag( enum sci_status scic_controller_free_io_tag( struct scic_sds_controller *scic, u16 io_tag); + +void scic_sds_port_configuration_agent_construct( + struct scic_sds_port_configuration_agent *port_agent); + +enum sci_status scic_sds_port_configuration_agent_initialize( + struct scic_sds_controller *controller, + struct scic_sds_port_configuration_agent *port_agent); #endif diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c index b92d51f2548..0f64605200f 100644 --- a/drivers/scsi/isci/phy.c +++ b/drivers/scsi/isci/phy.c @@ -57,9 +57,8 @@ #include "host.h" #include "phy.h" #include "scu_event_codes.h" -#include "scic_port.h" -#include "scic_config_parameters.h" #include "timers.h" +#include "probe_roms.h" /* Maximum arbitration wait time in micro-seconds */ #define SCIC_SDS_PHY_MAX_ARBITRATION_WAIT_TIME (700) diff --git a/drivers/scsi/isci/phy.h b/drivers/scsi/isci/phy.h index 093fd473366..f1800368eda 100644 --- a/drivers/scsi/isci/phy.h +++ b/drivers/scsi/isci/phy.h @@ -58,6 +58,7 @@ #include #include #include "state_machine.h" +#include "sas.h" /* This is the timeout value for the SATA phy to wait for a SIGNATURE FIS * before restarting the starting state machine. Technically, the old parallel diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 321935d9560..dbff28396dd 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -53,11 +53,13 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -#include #include "isci.h" -#include "scic_port.h" #include "port.h" #include "request.h" +#include "timers.h" + +#define SCIC_SDS_PORT_HARD_RESET_TIMEOUT (1000) +#define SCU_DUMMY_INDEX (0xFFFF) static void isci_port_change_state(struct isci_port *iport, enum isci_status status) { @@ -73,44 +75,87 @@ static void isci_port_change_state(struct isci_port *iport, enum isci_status sta spin_unlock_irqrestore(&iport->state_lock, flags); } -void isci_port_init(struct isci_port *iport, struct isci_host *ihost, int index) +/* + * This function will indicate which protocols are supported by this port. + * @sci_port: a handle corresponding to the SAS port for which to return the + * supported protocols. + * @protocols: This parameter specifies a pointer to a data structure + * which the core will copy the protocol values for the port from the + * transmit_identification register. + */ +static void +scic_sds_port_get_protocols(struct scic_sds_port *sci_port, + struct scic_phy_proto *protocols) { - INIT_LIST_HEAD(&iport->remote_dev_list); - INIT_LIST_HEAD(&iport->domain_dev_list); - spin_lock_init(&iport->state_lock); - init_completion(&iport->start_complete); - iport->isci_host = ihost; - isci_port_change_state(iport, isci_freed); + u8 index; + + protocols->all = 0; + + for (index = 0; index < SCI_MAX_PHYS; index++) { + if (sci_port->phy_table[index] != NULL) { + scic_sds_phy_get_protocols(sci_port->phy_table[index], + protocols); + } + } } /** - * isci_port_get_state() - This function gets the status of the port object. - * @isci_port: This parameter points to the isci_port object + * This method requests a list (mask) of the phys contained in the supplied SAS + * port. + * @sci_port: a handle corresponding to the SAS port for which to return the + * phy mask. * - * status of the object as a isci_status enum. + * Return a bit mask indicating which phys are a part of this port. Each bit + * corresponds to a phy identifier (e.g. bit 0 = phy id 0). */ -enum isci_status isci_port_get_state( - struct isci_port *isci_port) +static u32 scic_sds_port_get_phys(struct scic_sds_port *sci_port) { - return isci_port->status; + u32 index; + u32 mask; + + mask = 0; + + for (index = 0; index < SCI_MAX_PHYS; index++) { + if (sci_port->phy_table[index] != NULL) { + mask |= (1 << index); + } + } + + return mask; } -void isci_port_bc_change_received(struct isci_host *ihost, - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) +/** + * scic_port_get_properties() - This method simply returns the properties + * regarding the port, such as: physical index, protocols, sas address, etc. + * @port: this parameter specifies the port for which to retrieve the physical + * index. + * @properties: This parameter specifies the properties structure into which to + * copy the requested information. + * + * Indicate if the user specified a valid port. SCI_SUCCESS This value is + * returned if the specified port was valid. SCI_FAILURE_INVALID_PORT This + * value is returned if the specified port is not valid. When this value is + * returned, no data is copied to the properties output parameter. + */ +static enum sci_status scic_port_get_properties(struct scic_sds_port *port, + struct scic_port_properties *prop) { - struct isci_phy *iphy = sci_phy_to_iphy(sci_phy); + if ((port == NULL) || + (port->logical_port_index == SCIC_SDS_DUMMY_PORT)) + return SCI_FAILURE_INVALID_PORT; - dev_dbg(&ihost->pdev->dev, "%s: iphy = %p, sas_phy = %p\n", - __func__, iphy, &iphy->sas_phy); + prop->index = port->logical_port_index; + prop->phy_mask = scic_sds_port_get_phys(port); + scic_sds_port_get_sas_address(port, &prop->local.sas_address); + scic_sds_port_get_protocols(port, &prop->local.protocols); + scic_sds_port_get_attached_sas_address(port, &prop->remote.sas_address); - ihost->sas_ha.notify_port_event(&iphy->sas_phy, PORTE_BROADCAST_RCVD); - scic_port_enable_broadcast_change_notification(sci_port); + return SCI_SUCCESS; } -void isci_port_link_up(struct isci_host *isci_host, - struct scic_sds_port *port, - struct scic_sds_phy *phy) +static void isci_port_link_up(struct isci_host *isci_host, + struct scic_sds_port *port, + struct scic_sds_phy *phy) { unsigned long flags; struct scic_port_properties properties; @@ -184,8 +229,9 @@ void isci_port_link_up(struct isci_host *isci_host, * @port: This parameter specifies the isci port with the active link. * */ -void isci_port_link_down(struct isci_host *isci_host, struct isci_phy *isci_phy, - struct isci_port *isci_port) +static void isci_port_link_down(struct isci_host *isci_host, + struct isci_phy *isci_phy, + struct isci_port *isci_port) { struct isci_remote_device *isci_device; @@ -230,30 +276,6 @@ void isci_port_link_down(struct isci_host *isci_host, struct isci_phy *isci_phy, } -/** - * isci_port_deformed() - This function is called by libsas when a port becomes - * inactive. - * @phy: This parameter specifies the libsas phy with the inactive port. - * - */ -void isci_port_deformed( - struct asd_sas_phy *phy) -{ - pr_debug("%s: sas_phy = %p\n", __func__, phy); -} - -/** - * isci_port_formed() - This function is called by libsas when a port becomes - * active. - * @phy: This parameter specifies the libsas phy with the active port. - * - */ -void isci_port_formed( - struct asd_sas_phy *phy) -{ - pr_debug("%s: sas_phy = %p, sas_port = %p\n", __func__, phy, phy->port); -} - /** * isci_port_ready() - This function is called by the sci core when a link * becomes ready. @@ -261,7 +283,7 @@ void isci_port_formed( * @port: This parameter specifies the sci port with the active link. * */ -void isci_port_ready(struct isci_host *isci_host, struct isci_port *isci_port) +static void isci_port_ready(struct isci_host *isci_host, struct isci_port *isci_port) { dev_dbg(&isci_host->pdev->dev, "%s: isci_port = %p\n", __func__, isci_port); @@ -279,12 +301,19 @@ void isci_port_ready(struct isci_host *isci_host, struct isci_port *isci_port) * @port: This parameter specifies the sci port with the active link. * */ -void isci_port_not_ready(struct isci_host *isci_host, struct isci_port *isci_port) +static void isci_port_not_ready(struct isci_host *isci_host, struct isci_port *isci_port) { dev_dbg(&isci_host->pdev->dev, "%s: isci_port = %p\n", __func__, isci_port); } +static void isci_port_stop_complete(struct scic_sds_controller *scic, + struct scic_sds_port *sci_port, + enum sci_status completion_status) +{ + dev_dbg(&scic_to_ihost(scic)->pdev->dev, "Port stop complete\n"); +} + /** * isci_port_hard_reset_complete() - This function is called by the sci core * when the hard reset complete notification has been received. @@ -293,8 +322,8 @@ void isci_port_not_ready(struct isci_host *isci_host, struct isci_port *isci_por * process. * */ -void isci_port_hard_reset_complete(struct isci_port *isci_port, - enum sci_status completion_status) +static void isci_port_hard_reset_complete(struct isci_port *isci_port, + enum sci_status completion_status) { dev_dbg(&isci_port->isci_host->pdev->dev, "%s: isci_port = %p, completion_status=%x\n", @@ -306,62 +335,2364 @@ void isci_port_hard_reset_complete(struct isci_port *isci_port, complete_all(&isci_port->hard_reset_complete); } -int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *iport, - struct isci_phy *iphy) +/* This method will return a true value if the specified phy can be assigned to + * this port The following is a list of phys for each port that are allowed: - + * Port 0 - 3 2 1 0 - Port 1 - 1 - Port 2 - 3 2 - Port 3 - 3 This method + * doesn't preclude all configurations. It merely ensures that a phy is part + * of the allowable set of phy identifiers for that port. For example, one + * could assign phy 3 to port 0 and no other phys. Please refer to + * scic_sds_port_is_phy_mask_valid() for information regarding whether the + * phy_mask for a port can be supported. bool true if this is a valid phy + * assignment for the port false if this is not a valid phy assignment for the + * port + */ +bool scic_sds_port_is_valid_phy_assignment(struct scic_sds_port *sci_port, + u32 phy_index) { - unsigned long flags; - enum sci_status status; - int ret = TMF_RESP_FUNC_COMPLETE; + /* Initialize to invalid value. */ + u32 existing_phy_index = SCI_MAX_PHYS; + u32 index; - dev_dbg(&ihost->pdev->dev, "%s: iport = %p\n", - __func__, iport); + if ((sci_port->physical_port_index == 1) && (phy_index != 1)) { + return false; + } - init_completion(&iport->hard_reset_complete); + if (sci_port->physical_port_index == 3 && phy_index != 3) { + return false; + } - spin_lock_irqsave(&ihost->scic_lock, flags); + if ( + (sci_port->physical_port_index == 2) + && ((phy_index == 0) || (phy_index == 1)) + ) { + return false; + } - #define ISCI_PORT_RESET_TIMEOUT SCIC_SDS_SIGNATURE_FIS_TIMEOUT - status = scic_port_hard_reset(&iport->sci, ISCI_PORT_RESET_TIMEOUT); + for (index = 0; index < SCI_MAX_PHYS; index++) { + if ((sci_port->phy_table[index] != NULL) + && (index != phy_index)) { + existing_phy_index = index; + } + } - spin_unlock_irqrestore(&ihost->scic_lock, flags); + /* + * Ensure that all of the phys in the port are capable of + * operating at the same maximum link rate. */ + if ( + (existing_phy_index < SCI_MAX_PHYS) + && (sci_port->owning_controller->user_parameters.sds1.phys[ + phy_index].max_speed_generation != + sci_port->owning_controller->user_parameters.sds1.phys[ + existing_phy_index].max_speed_generation) + ) + return false; - if (status == SCI_SUCCESS) { - wait_for_completion(&iport->hard_reset_complete); + return true; +} - dev_dbg(&ihost->pdev->dev, - "%s: iport = %p; hard reset completion\n", - __func__, iport); +/** + * + * @sci_port: This is the port object for which to determine if the phy mask + * can be supported. + * + * This method will return a true value if the port's phy mask can be supported + * by the SCU. The following is a list of valid PHY mask configurations for + * each port: - Port 0 - [[3 2] 1] 0 - Port 1 - [1] - Port 2 - [[3] 2] + * - Port 3 - [3] This method returns a boolean indication specifying if the + * phy mask can be supported. true if this is a valid phy assignment for the + * port false if this is not a valid phy assignment for the port + */ +static bool scic_sds_port_is_phy_mask_valid( + struct scic_sds_port *sci_port, + u32 phy_mask) +{ + if (sci_port->physical_port_index == 0) { + if (((phy_mask & 0x0F) == 0x0F) + || ((phy_mask & 0x03) == 0x03) + || ((phy_mask & 0x01) == 0x01) + || (phy_mask == 0)) + return true; + } else if (sci_port->physical_port_index == 1) { + if (((phy_mask & 0x02) == 0x02) + || (phy_mask == 0)) + return true; + } else if (sci_port->physical_port_index == 2) { + if (((phy_mask & 0x0C) == 0x0C) + || ((phy_mask & 0x04) == 0x04) + || (phy_mask == 0)) + return true; + } else if (sci_port->physical_port_index == 3) { + if (((phy_mask & 0x08) == 0x08) + || (phy_mask == 0)) + return true; + } - if (iport->hard_reset_status != SCI_SUCCESS) - ret = TMF_RESP_FUNC_FAILED; - } else { - ret = TMF_RESP_FUNC_FAILED; + return false; +} - dev_err(&ihost->pdev->dev, - "%s: iport = %p; scic_port_hard_reset call" - " failed 0x%x\n", - __func__, iport, status); +/** + * + * @sci_port: This parameter specifies the port from which to return a + * connected phy. + * + * This method retrieves a currently active (i.e. connected) phy contained in + * the port. Currently, the lowest order phy that is connected is returned. + * This method returns a pointer to a SCIS_SDS_PHY object. NULL This value is + * returned if there are no currently active (i.e. connected to a remote end + * point) phys contained in the port. All other values specify a struct scic_sds_phy + * object that is active in the port. + */ +static struct scic_sds_phy *scic_sds_port_get_a_connected_phy( + struct scic_sds_port *sci_port + ) { + u32 index; + struct scic_sds_phy *phy; + for (index = 0; index < SCI_MAX_PHYS; index++) { + /* + * Ensure that the phy is both part of the port and currently + * connected to the remote end-point. */ + phy = sci_port->phy_table[index]; + if ( + (phy != NULL) + && scic_sds_port_active_phy(sci_port, phy) + ) { + return phy; + } } - /* If the hard reset for the port has failed, consider this - * the same as link failures on all phys in the port. + return NULL; +} + +/** + * scic_sds_port_set_phy() - + * @out]: port The port object to which the phy assignement is being made. + * @out]: phy The phy which is being assigned to the port. + * + * This method attempts to make the assignment of the phy to the port. If + * successful the phy is assigned to the ports phy table. bool true if the phy + * assignment can be made. false if the phy assignement can not be made. This + * is a functional test that only fails if the phy is currently assigned to a + * different port. + */ +static enum sci_status scic_sds_port_set_phy( + struct scic_sds_port *port, + struct scic_sds_phy *phy) +{ + /* + * Check to see if we can add this phy to a port + * that means that the phy is not part of a port and that the port does + * not already have a phy assinged to the phy index. */ + if ( + (port->phy_table[phy->phy_index] == NULL) + && (scic_sds_phy_get_port(phy) == NULL) + && scic_sds_port_is_valid_phy_assignment(port, phy->phy_index) + ) { + /* + * Phy is being added in the stopped state so we are in MPC mode + * make logical port index = physical port index */ + port->logical_port_index = port->physical_port_index; + port->phy_table[phy->phy_index] = phy; + scic_sds_phy_set_port(phy, port); + + return SCI_SUCCESS; + } + + return SCI_FAILURE; +} + +/** + * scic_sds_port_clear_phy() - + * @out]: port The port from which the phy is being cleared. + * @out]: phy The phy being cleared from the port. + * + * This method will clear the phy assigned to this port. This method fails if + * this phy is not currently assinged to this port. bool true if the phy is + * removed from the port. false if this phy is not assined to this port. + */ +static enum sci_status scic_sds_port_clear_phy( + struct scic_sds_port *port, + struct scic_sds_phy *phy) +{ + /* Make sure that this phy is part of this port */ + if (port->phy_table[phy->phy_index] == phy && + scic_sds_phy_get_port(phy) == port) { + struct scic_sds_controller *scic = port->owning_controller; + struct isci_host *ihost = scic_to_ihost(scic); + + /* Yep it is assigned to this port so remove it */ + scic_sds_phy_set_port(phy, &ihost->ports[SCI_MAX_PORTS].sci); + port->phy_table[phy->phy_index] = NULL; + return SCI_SUCCESS; + } + + return SCI_FAILURE; +} + +/** + * scic_sds_port_add_phy() - + * @sci_port: This parameter specifies the port in which the phy will be added. + * @sci_phy: This parameter is the phy which is to be added to the port. + * + * This method will add a PHY to the selected port. This method returns an + * enum sci_status. SCI_SUCCESS the phy has been added to the port. Any other status + * is failre to add the phy to the port. + */ +enum sci_status scic_sds_port_add_phy( + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) +{ + return sci_port->state_handlers->add_phy_handler( + sci_port, sci_phy); +} + + +/** + * scic_sds_port_remove_phy() - + * @sci_port: This parameter specifies the port in which the phy will be added. + * @sci_phy: This parameter is the phy which is to be added to the port. + * + * This method will remove the PHY from the selected PORT. This method returns + * an enum sci_status. SCI_SUCCESS the phy has been removed from the port. Any other + * status is failre to add the phy to the port. + */ +enum sci_status scic_sds_port_remove_phy( + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) +{ + return sci_port->state_handlers->remove_phy_handler( + sci_port, sci_phy); +} + +/** + * This method requests the SAS address for the supplied SAS port from the SCI + * implementation. + * @sci_port: a handle corresponding to the SAS port for which to return the + * SAS address. + * @sas_address: This parameter specifies a pointer to a SAS address structure + * into which the core will copy the SAS address for the port. + * + */ +void scic_sds_port_get_sas_address( + struct scic_sds_port *sci_port, + struct sci_sas_address *sas_address) +{ + u32 index; + + sas_address->high = 0; + sas_address->low = 0; + + for (index = 0; index < SCI_MAX_PHYS; index++) { + if (sci_port->phy_table[index] != NULL) { + scic_sds_phy_get_sas_address(sci_port->phy_table[index], sas_address); + } + } +} + +/* + * This function requests the SAS address for the device directly attached to + * this SAS port. + * @sci_port: a handle corresponding to the SAS port for which to return the + * SAS address. + * @sas_address: This parameter specifies a pointer to a SAS address structure + * into which the core will copy the SAS address for the device directly + * attached to the port. + * + */ +void scic_sds_port_get_attached_sas_address( + struct scic_sds_port *sci_port, + struct sci_sas_address *sas_address) +{ + struct scic_sds_phy *sci_phy; + + /* + * Ensure that the phy is both part of the port and currently + * connected to the remote end-point. */ - if (ret != TMF_RESP_FUNC_COMPLETE) { - dev_err(&ihost->pdev->dev, - "%s: iport = %p; hard reset failed " - "(0x%x) - sending link down to libsas for phy %p\n", - __func__, iport, iport->hard_reset_status, iphy); + sci_phy = scic_sds_port_get_a_connected_phy(sci_port); + if (sci_phy) { + if (sci_phy->protocol != SCIC_SDS_PHY_PROTOCOL_SATA) { + scic_sds_phy_get_attached_sas_address(sci_phy, + sas_address); + } else { + scic_sds_phy_get_sas_address(sci_phy, sas_address); + sas_address->low += sci_phy->phy_index; + } + } else { + sas_address->high = 0; + sas_address->low = 0; + } +} - isci_port_link_down(ihost, iphy, iport); +/** + * scic_sds_port_construct_dummy_rnc() - create dummy rnc for si workaround + * + * @sci_port: logical port on which we need to create the remote node context + * @rni: remote node index for this remote node context. + * + * This routine will construct a dummy remote node context data structure + * This structure will be posted to the hardware to work around a scheduler + * error in the hardware. + */ +static void scic_sds_port_construct_dummy_rnc(struct scic_sds_port *sci_port, u16 rni) +{ + union scu_remote_node_context *rnc; + + rnc = &sci_port->owning_controller->remote_node_context_table[rni]; + + memset(rnc, 0, sizeof(union scu_remote_node_context)); + + rnc->ssp.remote_sas_address_hi = 0; + rnc->ssp.remote_sas_address_lo = 0; + + rnc->ssp.remote_node_index = rni; + rnc->ssp.remote_node_port_width = 1; + rnc->ssp.logical_port_index = sci_port->physical_port_index; + + rnc->ssp.nexus_loss_timer_enable = false; + rnc->ssp.check_bit = false; + rnc->ssp.is_valid = true; + rnc->ssp.is_remote_node_context = true; + rnc->ssp.function_number = 0; + rnc->ssp.arbitration_wait_time = 0; +} + +/** + * scic_sds_port_construct_dummy_task() - create dummy task for si workaround + * @sci_port The logical port on which we need to create the + * remote node context. + * context. + * @tci The remote node index for this remote node context. + * + * This routine will construct a dummy task context data structure. This + * structure will be posted to the hardwre to work around a scheduler error + * in the hardware. + * + */ +static void scic_sds_port_construct_dummy_task(struct scic_sds_port *sci_port, u16 tci) +{ + struct scu_task_context *task_context; + + task_context = scic_sds_controller_get_task_context_buffer(sci_port->owning_controller, tci); + + memset(task_context, 0, sizeof(struct scu_task_context)); + + task_context->abort = 0; + task_context->priority = 0; + task_context->initiator_request = 1; + task_context->connection_rate = 1; + task_context->protocol_engine_index = 0; + task_context->logical_port_index = sci_port->physical_port_index; + task_context->protocol_type = SCU_TASK_CONTEXT_PROTOCOL_SSP; + task_context->task_index = scic_sds_io_tag_get_index(tci); + task_context->valid = SCU_TASK_CONTEXT_VALID; + task_context->context_type = SCU_TASK_CONTEXT_TYPE; + + task_context->remote_node_index = sci_port->reserved_rni; + task_context->command_code = 0; + + task_context->link_layer_control = 0; + task_context->do_not_dma_ssp_good_response = 1; + task_context->strict_ordering = 0; + task_context->control_frame = 0; + task_context->timeout_enable = 0; + task_context->block_guard_enable = 0; + + task_context->address_modifier = 0; + + task_context->task_phase = 0x01; +} + +static void scic_sds_port_destroy_dummy_resources(struct scic_sds_port *sci_port) +{ + struct scic_sds_controller *scic = sci_port->owning_controller; + + if (sci_port->reserved_tci != SCU_DUMMY_INDEX) + scic_controller_free_io_tag(scic, sci_port->reserved_tci); + + if (sci_port->reserved_rni != SCU_DUMMY_INDEX) + scic_sds_remote_node_table_release_remote_node_index(&scic->available_remote_nodes, + 1, sci_port->reserved_rni); + + sci_port->reserved_rni = SCU_DUMMY_INDEX; + sci_port->reserved_tci = SCU_DUMMY_INDEX; +} + +/** + * This method performs initialization of the supplied port. Initialization + * includes: - state machine initialization - member variable initialization + * - configuring the phy_mask + * @sci_port: + * @transport_layer_registers: + * @port_task_scheduler_registers: + * @port_configuration_regsiter: + * + * enum sci_status SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION This value is returned + * if the phy being added to the port + */ +enum sci_status scic_sds_port_initialize( + struct scic_sds_port *sci_port, + void __iomem *port_task_scheduler_registers, + void __iomem *port_configuration_regsiter, + void __iomem *viit_registers) +{ + sci_port->port_task_scheduler_registers = port_task_scheduler_registers; + sci_port->port_pe_configuration_register = port_configuration_regsiter; + sci_port->viit_registers = viit_registers; + + return SCI_SUCCESS; +} + +/** + * scic_port_hard_reset() - perform port hard reset + * @port: a handle corresponding to the SAS port to be hard reset. + * @reset_timeout: This parameter specifies the number of milliseconds in which + * the port reset operation should complete. + * + * The SCI User callback in scic_user_callbacks_t will only be called once for + * each phy in the SAS Port at completion of the hard reset sequence. Return a + * status indicating whether the hard reset started successfully. SCI_SUCCESS + * This value is returned if the hard reset operation started successfully. + */ +static enum sci_status scic_port_hard_reset(struct scic_sds_port *port, + u32 reset_timeout) +{ + return port->state_handlers->reset_handler( + port, reset_timeout); +} + +/** + * This method assigns the direct attached device ID for this port. + * + * @param[in] sci_port The port for which the direct attached device id is to + * be assigned. + * @param[in] device_id The direct attached device ID to assign to the port. + * This will be the RNi for the device + */ +void scic_sds_port_setup_transports( + struct scic_sds_port *sci_port, + u32 device_id) +{ + u8 index; + + for (index = 0; index < SCI_MAX_PHYS; index++) { + if (sci_port->active_phy_mask & (1 << index)) + scic_sds_phy_setup_transport(sci_port->phy_table[index], device_id); } +} - return ret; +/** + * + * @sci_port: This is the port on which the phy should be enabled. + * @sci_phy: This is the specific phy which to enable. + * @do_notify_user: This parameter specifies whether to inform the user (via + * scic_cb_port_link_up()) as to the fact that a new phy as become ready. + * + * This function will activate the phy in the port. + * Activation includes: - adding + * the phy to the port - enabling the Protocol Engine in the silicon. - + * notifying the user that the link is up. none + */ +static void scic_sds_port_activate_phy(struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy, + bool do_notify_user) +{ + struct scic_sds_controller *scic = sci_port->owning_controller; + struct isci_host *ihost = scic_to_ihost(scic); + + if (sci_phy->protocol != SCIC_SDS_PHY_PROTOCOL_SATA) + scic_sds_phy_resume(sci_phy); + + sci_port->active_phy_mask |= 1 << sci_phy->phy_index; + + scic_sds_controller_clear_invalid_phy(scic, sci_phy); + + if (do_notify_user == true) + isci_port_link_up(ihost, sci_port, sci_phy); } -void isci_port_stop_complete(struct scic_sds_controller *scic, - struct scic_sds_port *sci_port, - enum sci_status completion_status) +void scic_sds_port_deactivate_phy(struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy, + bool do_notify_user) { - dev_dbg(&scic_to_ihost(scic)->pdev->dev, "Port stop complete\n"); + struct scic_sds_controller *scic = scic_sds_port_get_controller(sci_port); + struct isci_port *iport = sci_port_to_iport(sci_port); + struct isci_host *ihost = scic_to_ihost(scic); + struct isci_phy *iphy = sci_phy_to_iphy(sci_phy); + + sci_port->active_phy_mask &= ~(1 << sci_phy->phy_index); + + sci_phy->max_negotiated_speed = SAS_LINK_RATE_UNKNOWN; + + /* Re-assign the phy back to the LP as if it were a narrow port */ + writel(sci_phy->phy_index, + &sci_port->port_pe_configuration_register[sci_phy->phy_index]); + + if (do_notify_user == true) + isci_port_link_down(ihost, iphy, iport); +} + +/** + * + * @sci_port: This is the port on which the phy should be disabled. + * @sci_phy: This is the specific phy which to disabled. + * + * This function will disable the phy and report that the phy is not valid for + * this port object. None + */ +static void scic_sds_port_invalid_link_up(struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) +{ + struct scic_sds_controller *scic = sci_port->owning_controller; + + /* + * Check to see if we have alreay reported this link as bad and if + * not go ahead and tell the SCI_USER that we have discovered an + * invalid link. + */ + if ((scic->invalid_phy_mask & (1 << sci_phy->phy_index)) == 0) { + scic_sds_controller_set_invalid_phy(scic, sci_phy); + dev_warn(&scic_to_ihost(scic)->pdev->dev, "Invalid link up!\n"); + } +} + +/** + * scic_sds_port_general_link_up_handler - phy can be assigned to port? + * @sci_port: scic_sds_port object for which has a phy that has gone link up. + * @sci_phy: This is the struct scic_sds_phy object that has gone link up. + * @do_notify_user: This parameter specifies whether to inform the user (via + * scic_cb_port_link_up()) as to the fact that a new phy as become ready. + * + * Determine if this phy can be assigned to this + * port . If the phy is not a valid PHY for + * this port then the function will notify the user. A PHY can only be + * part of a port if it's attached SAS ADDRESS is the same as all other PHYs in + * the same port. none + */ +static void scic_sds_port_general_link_up_handler(struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy, + bool do_notify_user) +{ + struct sci_sas_address port_sas_address; + struct sci_sas_address phy_sas_address; + + scic_sds_port_get_attached_sas_address(sci_port, &port_sas_address); + scic_sds_phy_get_attached_sas_address(sci_phy, &phy_sas_address); + + /* If the SAS address of the new phy matches the SAS address of + * other phys in the port OR this is the first phy in the port, + * then activate the phy and allow it to be used for operations + * in this port. + */ + if ((phy_sas_address.high == port_sas_address.high && + phy_sas_address.low == port_sas_address.low) || + sci_port->active_phy_mask == 0) { + struct sci_base_state_machine *sm = &sci_port->state_machine; + + scic_sds_port_activate_phy(sci_port, sci_phy, do_notify_user); + if (sm->current_state_id == SCI_BASE_PORT_STATE_RESETTING) + sci_base_state_machine_change_state(sm, SCI_BASE_PORT_STATE_READY); + } else + scic_sds_port_invalid_link_up(sci_port, sci_phy); +} + + + +/** + * This method returns false if the port only has a single phy object assigned. + * If there are no phys or more than one phy then the method will return + * true. + * @sci_port: The port for which the wide port condition is to be checked. + * + * bool true Is returned if this is a wide ported port. false Is returned if + * this is a narrow port. + */ +static bool scic_sds_port_is_wide(struct scic_sds_port *sci_port) +{ + u32 index; + u32 phy_count = 0; + + for (index = 0; index < SCI_MAX_PHYS; index++) { + if (sci_port->phy_table[index] != NULL) { + phy_count++; + } + } + + return phy_count != 1; +} + +/** + * This method is called by the PHY object when the link is detected. if the + * port wants the PHY to continue on to the link up state then the port + * layer must return true. If the port object returns false the phy object + * must halt its attempt to go link up. + * @sci_port: The port associated with the phy object. + * @sci_phy: The phy object that is trying to go link up. + * + * true if the phy object can continue to the link up condition. true Is + * returned if this phy can continue to the ready state. false Is returned if + * can not continue on to the ready state. This notification is in place for + * wide ports and direct attached phys. Since there are no wide ported SATA + * devices this could become an invalid port configuration. + */ +bool scic_sds_port_link_detected( + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) +{ + if ((sci_port->logical_port_index != SCIC_SDS_DUMMY_PORT) && + (sci_phy->protocol == SCIC_SDS_PHY_PROTOCOL_SATA) && + scic_sds_port_is_wide(sci_port)) { + scic_sds_port_invalid_link_up(sci_port, sci_phy); + + return false; + } + + return true; +} + +/** + * This method is the entry point for the phy to inform the port that it is now + * in a ready state + * @sci_port: + * + * + */ +void scic_sds_port_link_up( + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) +{ + sci_phy->is_in_link_training = false; + + sci_port->state_handlers->link_up_handler(sci_port, sci_phy); +} + +/** + * This method is the entry point for the phy to inform the port that it is no + * longer in a ready state + * @sci_port: + * + * + */ +void scic_sds_port_link_down( + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) +{ + sci_port->state_handlers->link_down_handler(sci_port, sci_phy); +} + +/** + * This method is called to start an IO request on this port. + * @sci_port: + * @sci_dev: + * @sci_req: + * + * enum sci_status + */ +enum sci_status scic_sds_port_start_io( + struct scic_sds_port *sci_port, + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *sci_req) +{ + return sci_port->state_handlers->start_io_handler( + sci_port, sci_dev, sci_req); +} + +/** + * This method is called to complete an IO request to the port. + * @sci_port: + * @sci_dev: + * @sci_req: + * + * enum sci_status + */ +enum sci_status scic_sds_port_complete_io( + struct scic_sds_port *sci_port, + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *sci_req) +{ + return sci_port->state_handlers->complete_io_handler( + sci_port, sci_dev, sci_req); +} + +/** + * This method is provided to timeout requests for port operations. Mostly its + * for the port reset operation. + * + * + */ +static void scic_sds_port_timeout_handler(void *port) +{ + struct scic_sds_port *sci_port = port; + u32 current_state; + + current_state = sci_base_state_machine_get_state( + &sci_port->state_machine); + + if (current_state == SCI_BASE_PORT_STATE_RESETTING) { + /* + * if the port is still in the resetting state then the + * timeout fired before the reset completed. + */ + sci_base_state_machine_change_state( + &sci_port->state_machine, + SCI_BASE_PORT_STATE_FAILED); + } else if (current_state == SCI_BASE_PORT_STATE_STOPPED) { + /* + * if the port is stopped then the start request failed + * In this case stay in the stopped state. + */ + dev_err(sciport_to_dev(sci_port), + "%s: SCIC Port 0x%p failed to stop before tiemout.\n", + __func__, + sci_port); + } else if (current_state == SCI_BASE_PORT_STATE_STOPPING) { + /* + * if the port is still stopping then the stop has not + * completed + */ + isci_port_stop_complete( + scic_sds_port_get_controller(sci_port), + sci_port, + SCI_FAILURE_TIMEOUT); + } else { + /* + * The port is in the ready state and we have a timer + * reporting a timeout this should not happen. + */ + dev_err(sciport_to_dev(sci_port), + "%s: SCIC Port 0x%p is processing a timeout operation " + "in state %d.\n", + __func__, + sci_port, + current_state); + } +} + +/* --------------------------------------------------------------------------- */ + +/** + * This function updates the hardwares VIIT entry for this port. + * + * + */ +static void scic_sds_port_update_viit_entry(struct scic_sds_port *sci_port) +{ + struct sci_sas_address sas_address; + + scic_sds_port_get_sas_address(sci_port, &sas_address); + + writel(sas_address.high, + &sci_port->viit_registers->initiator_sas_address_hi); + writel(sas_address.low, + &sci_port->viit_registers->initiator_sas_address_lo); + + /* This value get cleared just in case its not already cleared */ + writel(0, &sci_port->viit_registers->reserved); + + /* We are required to update the status register last */ + writel(SCU_VIIT_ENTRY_ID_VIIT | + SCU_VIIT_IPPT_INITIATOR | + ((1 << sci_port->physical_port_index) << SCU_VIIT_ENTRY_LPVIE_SHIFT) | + SCU_VIIT_STATUS_ALL_VALID, + &sci_port->viit_registers->status); +} + +/** + * This method returns the maximum allowed speed for data transfers on this + * port. This maximum allowed speed evaluates to the maximum speed of the + * slowest phy in the port. + * @sci_port: This parameter specifies the port for which to retrieve the + * maximum allowed speed. + * + * This method returns the maximum negotiated speed of the slowest phy in the + * port. + */ +enum sas_linkrate scic_sds_port_get_max_allowed_speed( + struct scic_sds_port *sci_port) +{ + u16 index; + enum sas_linkrate max_allowed_speed = SAS_LINK_RATE_6_0_GBPS; + struct scic_sds_phy *phy = NULL; + + /* + * Loop through all of the phys in this port and find the phy with the + * lowest maximum link rate. */ + for (index = 0; index < SCI_MAX_PHYS; index++) { + phy = sci_port->phy_table[index]; + if ( + (phy != NULL) + && (scic_sds_port_active_phy(sci_port, phy) == true) + && (phy->max_negotiated_speed < max_allowed_speed) + ) + max_allowed_speed = phy->max_negotiated_speed; + } + + return max_allowed_speed; +} + +static void scic_port_enable_broadcast_change_notification(struct scic_sds_port *port) +{ + struct scic_sds_phy *phy; + u32 register_value; + u8 index; + + /* Loop through all of the phys to enable BCN. */ + for (index = 0; index < SCI_MAX_PHYS; index++) { + phy = port->phy_table[index]; + if (phy != NULL) { + register_value = + readl(&phy->link_layer_registers->link_layer_control); + + /* clear the bit by writing 1. */ + writel(register_value, + &phy->link_layer_registers->link_layer_control); + } + } +} + +/* + * **************************************************************************** + * * READY SUBSTATE HANDLERS + * **************************************************************************** */ + +/* + * This method is the general ready state stop handler for the struct scic_sds_port + * object. This function will transition the ready substate machine to its + * final state. enum sci_status SCI_SUCCESS + */ +static enum sci_status scic_sds_port_ready_substate_stop_handler( + struct scic_sds_port *port) +{ + sci_base_state_machine_change_state( + &port->state_machine, + SCI_BASE_PORT_STATE_STOPPING + ); + + return SCI_SUCCESS; +} + +/* + * This method is the general ready substate complete io handler for the + * struct scic_sds_port object. This function decrments the outstanding request count + * for this port object. enum sci_status SCI_SUCCESS + */ +static enum sci_status scic_sds_port_ready_substate_complete_io_handler( + struct scic_sds_port *port, + struct scic_sds_remote_device *device, + struct scic_sds_request *io_request) +{ + scic_sds_port_decrement_request_count(port); + + return SCI_SUCCESS; +} + +static enum sci_status scic_sds_port_ready_substate_add_phy_handler( + struct scic_sds_port *port, + struct scic_sds_phy *phy) +{ + enum sci_status status; + + status = scic_sds_port_set_phy(port, phy); + + if (status == SCI_SUCCESS) { + scic_sds_port_general_link_up_handler(port, phy, true); + + port->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; + + sci_base_state_machine_change_state( + &port->ready_substate_machine, + SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING + ); + } + + return status; +} + + +static enum sci_status scic_sds_port_ready_substate_remove_phy_handler( + struct scic_sds_port *port, + struct scic_sds_phy *phy) +{ + enum sci_status status; + + status = scic_sds_port_clear_phy(port, phy); + + if (status == SCI_SUCCESS) { + scic_sds_port_deactivate_phy(port, phy, true); + + port->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; + + sci_base_state_machine_change_state( + &port->ready_substate_machine, + SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING + ); + } + + return status; +} + +/* + * **************************************************************************** + * * READY SUBSTATE WAITING HANDLERS + * **************************************************************************** */ + +/** + * + * @sci_port: This is the struct scic_sds_port object that which has a phy that has + * gone link up. + * @sci_phy: This is the struct scic_sds_phy object that has gone link up. + * + * This method is the ready waiting substate link up handler for the + * struct scic_sds_port object. This methos will report the link up condition for + * this port and will transition to the ready operational substate. none + */ +static void scic_sds_port_ready_waiting_substate_link_up_handler( + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) +{ + /* + * Since this is the first phy going link up for the port we can just enable + * it and continue. */ + scic_sds_port_activate_phy(sci_port, sci_phy, true); + + sci_base_state_machine_change_state( + &sci_port->ready_substate_machine, + SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL + ); +} + +/* + * This method is the ready waiting substate start io handler for the + * struct scic_sds_port object. The port object can not accept new requests so the + * request is failed. enum sci_status SCI_FAILURE_INVALID_STATE + */ +static enum sci_status scic_sds_port_ready_waiting_substate_start_io_handler( + struct scic_sds_port *port, + struct scic_sds_remote_device *device, + struct scic_sds_request *io_request) +{ + return SCI_FAILURE_INVALID_STATE; +} + +/* + * **************************************************************************** + * * READY SUBSTATE OPERATIONAL HANDLERS + * **************************************************************************** */ + +/* + * This method will casue the port to reset. enum sci_status SCI_SUCCESS + */ +static enum +sci_status scic_sds_port_ready_operational_substate_reset_handler( + struct scic_sds_port *port, + u32 timeout) +{ + enum sci_status status = SCI_FAILURE_INVALID_PHY; + u32 phy_index; + struct scic_sds_phy *selected_phy = NULL; + + + /* Select a phy on which we can send the hard reset request. */ + for (phy_index = 0; + (phy_index < SCI_MAX_PHYS) && (selected_phy == NULL); + phy_index++) { + selected_phy = port->phy_table[phy_index]; + + if ((selected_phy != NULL) && + !scic_sds_port_active_phy(port, selected_phy)) { + /* + * We found a phy but it is not ready select + * different phy + */ + selected_phy = NULL; + } + } + + /* If we have a phy then go ahead and start the reset procedure */ + if (selected_phy != NULL) { + status = scic_sds_phy_reset(selected_phy); + + if (status == SCI_SUCCESS) { + isci_timer_start(port->timer_handle, timeout); + port->not_ready_reason = + SCIC_PORT_NOT_READY_HARD_RESET_REQUESTED; + + sci_base_state_machine_change_state( + &port->state_machine, + SCI_BASE_PORT_STATE_RESETTING); + } + } + + return status; +} + +/** + * scic_sds_port_ready_operational_substate_link_up_handler() - + * @sci_port: This is the struct scic_sds_port object that which has a phy that has + * gone link up. + * @sci_phy: This is the struct scic_sds_phy object that has gone link up. + * + * This method is the ready operational substate link up handler for the + * struct scic_sds_port object. This function notifies the SCI User that the phy has + * gone link up. none + */ +static void scic_sds_port_ready_operational_substate_link_up_handler( + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) +{ + scic_sds_port_general_link_up_handler(sci_port, sci_phy, true); +} + +/** + * scic_sds_port_ready_operational_substate_link_down_handler() - + * @sci_port: This is the struct scic_sds_port object that which has a phy that has + * gone link down. + * @sci_phy: This is the struct scic_sds_phy object that has gone link down. + * + * This method is the ready operational substate link down handler for the + * struct scic_sds_port object. This function notifies the SCI User that the phy has + * gone link down and if this is the last phy in the port the port will change + * state to the ready waiting substate. none + */ +static void scic_sds_port_ready_operational_substate_link_down_handler( + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) +{ + scic_sds_port_deactivate_phy(sci_port, sci_phy, true); + + /* + * If there are no active phys left in the port, then transition + * the port to the WAITING state until such time as a phy goes + * link up. */ + if (sci_port->active_phy_mask == 0) + sci_base_state_machine_change_state(&sci_port->ready_substate_machine, + SCIC_SDS_PORT_READY_SUBSTATE_WAITING); +} + +/* + * This method is the ready operational substate start io handler for the + * struct scic_sds_port object. This function incremetns the outstanding request + * count for this port object. enum sci_status SCI_SUCCESS + */ +static enum sci_status scic_sds_port_ready_operational_substate_start_io_handler( + struct scic_sds_port *port, + struct scic_sds_remote_device *device, + struct scic_sds_request *io_request) +{ + port->started_request_count++; + return SCI_SUCCESS; +} + +/* + * **************************************************************************** + * * READY SUBSTATE OPERATIONAL HANDLERS + * **************************************************************************** */ + +/* + * This is the default method for a port add phy request. It will report a + * warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE + */ +static enum sci_status scic_sds_port_ready_configuring_substate_add_phy_handler( + struct scic_sds_port *port, + struct scic_sds_phy *phy) +{ + enum sci_status status; + + status = scic_sds_port_set_phy(port, phy); + + if (status == SCI_SUCCESS) { + scic_sds_port_general_link_up_handler(port, phy, true); + + /* + * Re-enter the configuring state since this may be the last phy in + * the port. */ + sci_base_state_machine_change_state( + &port->ready_substate_machine, + SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING + ); + } + + return status; +} + +/* + * This is the default method for a port remove phy request. It will report a + * warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE + */ +static enum sci_status scic_sds_port_ready_configuring_substate_remove_phy_handler( + struct scic_sds_port *port, + struct scic_sds_phy *phy) +{ + enum sci_status status; + + status = scic_sds_port_clear_phy(port, phy); + + if (status == SCI_SUCCESS) { + scic_sds_port_deactivate_phy(port, phy, true); + + /* + * Re-enter the configuring state since this may be the last phy in + * the port. */ + sci_base_state_machine_change_state( + &port->ready_substate_machine, + SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING + ); + } + + return status; +} + +/** + * scic_sds_port_ready_configuring_substate_complete_io_handler() - + * @port: This is the port that is being requested to complete the io request. + * @device: This is the device on which the io is completing. + * + * This method will decrement the outstanding request count for this port. If + * the request count goes to 0 then the port can be reprogrammed with its new + * phy data. + */ +static enum sci_status +scic_sds_port_ready_configuring_substate_complete_io_handler( + struct scic_sds_port *port, + struct scic_sds_remote_device *device, + struct scic_sds_request *io_request) +{ + scic_sds_port_decrement_request_count(port); + + if (port->started_request_count == 0) { + sci_base_state_machine_change_state( + &port->ready_substate_machine, + SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL + ); + } + + return SCI_SUCCESS; +} + +static enum sci_status default_port_handler(struct scic_sds_port *sci_port, + const char *func) +{ + dev_warn(sciport_to_dev(sci_port), + "%s: in wrong state: %d\n", func, + sci_base_state_machine_get_state(&sci_port->state_machine)); + return SCI_FAILURE_INVALID_STATE; +} + +static enum sci_status +scic_sds_port_default_start_handler(struct scic_sds_port *sci_port) +{ + return default_port_handler(sci_port, __func__); +} + +static enum sci_status +scic_sds_port_default_stop_handler(struct scic_sds_port *sci_port) +{ + return default_port_handler(sci_port, __func__); +} + +static enum sci_status +scic_sds_port_default_destruct_handler(struct scic_sds_port *sci_port) +{ + return default_port_handler(sci_port, __func__); +} + +static enum sci_status +scic_sds_port_default_reset_handler(struct scic_sds_port *sci_port, + u32 timeout) +{ + return default_port_handler(sci_port, __func__); +} + +static enum sci_status +scic_sds_port_default_add_phy_handler(struct scic_sds_port *sci_port, + struct scic_sds_phy *base_phy) +{ + return default_port_handler(sci_port, __func__); +} + +static enum sci_status +scic_sds_port_default_remove_phy_handler(struct scic_sds_port *sci_port, + struct scic_sds_phy *base_phy) +{ + return default_port_handler(sci_port, __func__); +} + +/* + * This is the default method for a port unsolicited frame request. It will + * report a warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE Is it even + * possible to receive an unsolicited frame directed to a port object? It + * seems possible if we implementing virtual functions but until then? + */ +static enum sci_status +scic_sds_port_default_frame_handler(struct scic_sds_port *sci_port, + u32 frame_index) +{ + struct scic_sds_controller *scic = scic_sds_port_get_controller(sci_port); + + default_port_handler(sci_port, __func__); + scic_sds_controller_release_frame(scic, frame_index); + + return SCI_FAILURE_INVALID_STATE; +} + +static enum sci_status scic_sds_port_default_event_handler(struct scic_sds_port *sci_port, + u32 event_code) +{ + return default_port_handler(sci_port, __func__); +} + +static void scic_sds_port_default_link_up_handler(struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) +{ + default_port_handler(sci_port, __func__); +} + +static void scic_sds_port_default_link_down_handler(struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) +{ + default_port_handler(sci_port, __func__); +} + +static enum sci_status scic_sds_port_default_start_io_handler(struct scic_sds_port *sci_port, + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *sci_req) +{ + return default_port_handler(sci_port, __func__); +} + +static enum sci_status scic_sds_port_default_complete_io_handler(struct scic_sds_port *sci_port, + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *sci_req) +{ + return default_port_handler(sci_port, __func__); +} + + + +static struct scic_sds_port_state_handler +scic_sds_port_ready_substate_handler_table[SCIC_SDS_PORT_READY_MAX_SUBSTATES] = { + { + /* SCIC_SDS_PORT_READY_SUBSTATE_WAITING */ + scic_sds_port_default_start_handler, + scic_sds_port_ready_substate_stop_handler, + scic_sds_port_default_destruct_handler, + scic_sds_port_default_reset_handler, + scic_sds_port_ready_substate_add_phy_handler, + scic_sds_port_default_remove_phy_handler, + scic_sds_port_default_frame_handler, + scic_sds_port_default_event_handler, + scic_sds_port_ready_waiting_substate_link_up_handler, + scic_sds_port_default_link_down_handler, + scic_sds_port_ready_waiting_substate_start_io_handler, + scic_sds_port_ready_substate_complete_io_handler, + }, + + { + /* SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL */ + scic_sds_port_default_start_handler, + scic_sds_port_ready_substate_stop_handler, + scic_sds_port_default_destruct_handler, + scic_sds_port_ready_operational_substate_reset_handler, + scic_sds_port_ready_substate_add_phy_handler, + scic_sds_port_ready_substate_remove_phy_handler, + scic_sds_port_default_frame_handler, + scic_sds_port_default_event_handler, + scic_sds_port_ready_operational_substate_link_up_handler, + scic_sds_port_ready_operational_substate_link_down_handler, + scic_sds_port_ready_operational_substate_start_io_handler, + scic_sds_port_ready_substate_complete_io_handler, + }, + + { + /* SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING */ + scic_sds_port_default_start_handler, + scic_sds_port_ready_substate_stop_handler, + scic_sds_port_default_destruct_handler, + scic_sds_port_default_reset_handler, + scic_sds_port_ready_configuring_substate_add_phy_handler, + scic_sds_port_ready_configuring_substate_remove_phy_handler, + scic_sds_port_default_frame_handler, + scic_sds_port_default_event_handler, + scic_sds_port_default_link_up_handler, + scic_sds_port_default_link_down_handler, + scic_sds_port_default_start_io_handler, + scic_sds_port_ready_configuring_substate_complete_io_handler + } +}; + +/** + * scic_sds_port_set_ready_state_handlers() - + * + * This macro sets the port ready substate handlers. + */ +#define scic_sds_port_set_ready_state_handlers(port, state_id) \ + scic_sds_port_set_state_handlers(\ + port, &scic_sds_port_ready_substate_handler_table[(state_id)] \ + ) + +/* + * ****************************************************************************** + * * PORT STATE PRIVATE METHODS + * ****************************************************************************** */ + +/** + * + * @sci_port: This is the struct scic_sds_port object to suspend. + * + * This method will susped the port task scheduler for this port object. none + */ +static void +scic_sds_port_suspend_port_task_scheduler(struct scic_sds_port *port) +{ + u32 pts_control_value; + + pts_control_value = readl(&port->port_task_scheduler_registers->control); + pts_control_value |= SCU_PTSxCR_GEN_BIT(SUSPEND); + writel(pts_control_value, &port->port_task_scheduler_registers->control); +} + +/** + * scic_sds_port_post_dummy_request() - post dummy/workaround request + * @sci_port: port to post task + * + * Prevent the hardware scheduler from posting new requests to the front + * of the scheduler queue causing a starvation problem for currently + * ongoing requests. + * + */ +static void scic_sds_port_post_dummy_request(struct scic_sds_port *sci_port) +{ + u32 command; + struct scu_task_context *task_context; + struct scic_sds_controller *scic = sci_port->owning_controller; + u16 tci = sci_port->reserved_tci; + + task_context = scic_sds_controller_get_task_context_buffer(scic, tci); + + task_context->abort = 0; + + command = SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | + sci_port->physical_port_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | + tci; + + scic_sds_controller_post_request(scic, command); +} + +/** + * This routine will abort the dummy request. This will alow the hardware to + * power down parts of the silicon to save power. + * + * @sci_port: The port on which the task must be aborted. + * + */ +static void scic_sds_port_abort_dummy_request(struct scic_sds_port *sci_port) +{ + struct scic_sds_controller *scic = sci_port->owning_controller; + u16 tci = sci_port->reserved_tci; + struct scu_task_context *tc; + u32 command; + + tc = scic_sds_controller_get_task_context_buffer(scic, tci); + + tc->abort = 1; + + command = SCU_CONTEXT_COMMAND_REQUEST_POST_TC_ABORT | + sci_port->physical_port_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | + tci; + + scic_sds_controller_post_request(scic, command); +} + +/** + * + * @sci_port: This is the struct scic_sds_port object to resume. + * + * This method will resume the port task scheduler for this port object. none + */ +static void +scic_sds_port_resume_port_task_scheduler(struct scic_sds_port *port) +{ + u32 pts_control_value; + + pts_control_value = readl(&port->port_task_scheduler_registers->control); + pts_control_value &= ~SCU_PTSxCR_GEN_BIT(SUSPEND); + writel(pts_control_value, &port->port_task_scheduler_registers->control); +} + +/* + * ****************************************************************************** + * * PORT READY SUBSTATE METHODS + * ****************************************************************************** */ + +/** + * + * @object: This is the object which is cast to a struct scic_sds_port object. + * + * This method will perform the actions required by the struct scic_sds_port on + * entering the SCIC_SDS_PORT_READY_SUBSTATE_WAITING. This function checks the + * port for any ready phys. If there is at least one phy in a ready state then + * the port transitions to the ready operational substate. none + */ +static void scic_sds_port_ready_substate_waiting_enter(void *object) +{ + struct scic_sds_port *sci_port = object; + + scic_sds_port_set_ready_state_handlers( + sci_port, SCIC_SDS_PORT_READY_SUBSTATE_WAITING + ); + + scic_sds_port_suspend_port_task_scheduler(sci_port); + + sci_port->not_ready_reason = SCIC_PORT_NOT_READY_NO_ACTIVE_PHYS; + + if (sci_port->active_phy_mask != 0) { + /* At least one of the phys on the port is ready */ + sci_base_state_machine_change_state( + &sci_port->ready_substate_machine, + SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL + ); + } +} + +/** + * + * @object: This is the object which is cast to a struct scic_sds_port object. + * + * This function will perform the actions required by the struct scic_sds_port + * on entering the SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL. This function sets + * the state handlers for the port object, notifies the SCI User that the port + * is ready, and resumes port operations. none + */ +static void scic_sds_port_ready_substate_operational_enter(void *object) +{ + u32 index; + struct scic_sds_port *sci_port = object; + struct scic_sds_controller *scic = sci_port->owning_controller; + struct isci_host *ihost = scic_to_ihost(scic); + struct isci_port *iport = sci_port_to_iport(sci_port); + + scic_sds_port_set_ready_state_handlers( + sci_port, + SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL); + + isci_port_ready(ihost, iport); + + for (index = 0; index < SCI_MAX_PHYS; index++) { + if (sci_port->phy_table[index]) { + writel(sci_port->physical_port_index, + &sci_port->port_pe_configuration_register[ + sci_port->phy_table[index]->phy_index]); + } + } + + scic_sds_port_update_viit_entry(sci_port); + + scic_sds_port_resume_port_task_scheduler(sci_port); + + /* + * Post the dummy task for the port so the hardware can schedule + * io correctly + */ + scic_sds_port_post_dummy_request(sci_port); +} + +/** + * + * @object: This is the object which is cast to a struct scic_sds_port object. + * + * This method will perform the actions required by the struct scic_sds_port on + * exiting the SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL. This function reports + * the port not ready and suspends the port task scheduler. none + */ +static void scic_sds_port_ready_substate_operational_exit(void *object) +{ + struct scic_sds_port *sci_port = object; + struct scic_sds_controller *scic = sci_port->owning_controller; + struct isci_host *ihost = scic_to_ihost(scic); + struct isci_port *iport = sci_port_to_iport(sci_port); + + /* + * Kill the dummy task for this port if it has not yet posted + * the hardware will treat this as a NOP and just return abort + * complete. + */ + scic_sds_port_abort_dummy_request(sci_port); + + isci_port_not_ready(ihost, iport); +} + +/* + * ****************************************************************************** + * * PORT READY CONFIGURING METHODS + * ****************************************************************************** */ + +/** + * scic_sds_port_ready_substate_configuring_enter() - + * @object: This is the object which is cast to a struct scic_sds_port object. + * + * This method will perform the actions required by the struct scic_sds_port on + * exiting the SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL. This function reports + * the port not ready and suspends the port task scheduler. none + */ +static void scic_sds_port_ready_substate_configuring_enter(void *object) +{ + struct scic_sds_port *sci_port = object; + struct scic_sds_controller *scic = sci_port->owning_controller; + struct isci_host *ihost = scic_to_ihost(scic); + struct isci_port *iport = sci_port_to_iport(sci_port); + + scic_sds_port_set_ready_state_handlers( + sci_port, + SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); + + if (sci_port->active_phy_mask == 0) { + isci_port_not_ready(ihost, iport); + + sci_base_state_machine_change_state( + &sci_port->ready_substate_machine, + SCIC_SDS_PORT_READY_SUBSTATE_WAITING); + } else if (sci_port->started_request_count == 0) + sci_base_state_machine_change_state( + &sci_port->ready_substate_machine, + SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL); +} + +static void scic_sds_port_ready_substate_configuring_exit(void *object) +{ + struct scic_sds_port *sci_port = object; + + scic_sds_port_suspend_port_task_scheduler(sci_port); +} + +/* --------------------------------------------------------------------------- */ + +static const struct sci_base_state scic_sds_port_ready_substate_table[] = { + [SCIC_SDS_PORT_READY_SUBSTATE_WAITING] = { + .enter_state = scic_sds_port_ready_substate_waiting_enter, + }, + [SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL] = { + .enter_state = scic_sds_port_ready_substate_operational_enter, + .exit_state = scic_sds_port_ready_substate_operational_exit + }, + [SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING] = { + .enter_state = scic_sds_port_ready_substate_configuring_enter, + .exit_state = scic_sds_port_ready_substate_configuring_exit + }, +}; + +/** + * + * @port: This is the struct scic_sds_port object on which the io request count will + * be decremented. + * @device: This is the struct scic_sds_remote_device object to which the io request + * is being directed. This parameter is not required to complete this + * operation. + * @io_request: This is the request that is being completed on this port + * object. This parameter is not required to complete this operation. + * + * This is a general complete io request handler for the struct scic_sds_port object. + * enum sci_status SCI_SUCCESS + */ +static enum sci_status scic_sds_port_general_complete_io_handler( + struct scic_sds_port *port, + struct scic_sds_remote_device *device, + struct scic_sds_request *io_request) +{ + scic_sds_port_decrement_request_count(port); + + return SCI_SUCCESS; +} + +/** + * scic_sds_port_stopped_state_start_handler() - stop a port from "started" + * + * @port: This is the struct scic_sds_port object which is cast into a + * struct scic_sds_port object. + * + * This function takes the struct scic_sds_port from a stopped state and + * attempts to start it. To start a port it must have no assiged devices and + * it must have at least one phy assigned to it. If those conditions are + * met then the port can transition to the ready state. + * enum sci_status + * SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION + * This struct scic_sds_port object could not be started because the port + * configuration is not valid. + * SCI_SUCCESS + * the start request is successful and the struct scic_sds_port object + * has transitioned to the SCI_BASE_PORT_STATE_READY. + */ +static enum sci_status +scic_sds_port_stopped_state_start_handler(struct scic_sds_port *sci_port) +{ + struct scic_sds_controller *scic = sci_port->owning_controller; + struct isci_host *ihost = scic_to_ihost(scic); + enum sci_status status = SCI_SUCCESS; + u32 phy_mask; + + if (sci_port->assigned_device_count > 0) { + /* + * @todo This is a start failure operation because + * there are still devices assigned to this port. + * There must be no devices assigned to a port on a + * start operation. + */ + return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; + } + + sci_port->timer_handle = + isci_timer_create(ihost, + sci_port, + scic_sds_port_timeout_handler); + + if (!sci_port->timer_handle) + return SCI_FAILURE_INSUFFICIENT_RESOURCES; + + if (sci_port->reserved_rni == SCU_DUMMY_INDEX) { + u16 rni = scic_sds_remote_node_table_allocate_remote_node( + &scic->available_remote_nodes, 1); + + if (rni != SCU_DUMMY_INDEX) + scic_sds_port_construct_dummy_rnc(sci_port, rni); + else + status = SCI_FAILURE_INSUFFICIENT_RESOURCES; + sci_port->reserved_rni = rni; + } + + if (sci_port->reserved_tci == SCU_DUMMY_INDEX) { + /* Allocate a TCI and remove the sequence nibble */ + u16 tci = scic_controller_allocate_io_tag(scic); + + if (tci != SCU_DUMMY_INDEX) + scic_sds_port_construct_dummy_task(sci_port, tci); + else + status = SCI_FAILURE_INSUFFICIENT_RESOURCES; + sci_port->reserved_tci = tci; + } + + if (status == SCI_SUCCESS) { + phy_mask = scic_sds_port_get_phys(sci_port); + + /* + * There are one or more phys assigned to this port. Make sure + * the port's phy mask is in fact legal and supported by the + * silicon. + */ + if (scic_sds_port_is_phy_mask_valid(sci_port, phy_mask) == true) { + sci_base_state_machine_change_state( + &sci_port->state_machine, + SCI_BASE_PORT_STATE_READY); + + return SCI_SUCCESS; + } else + status = SCI_FAILURE; + } + + if (status != SCI_SUCCESS) + scic_sds_port_destroy_dummy_resources(sci_port); + + return status; +} + +/* + * This method takes the struct scic_sds_port that is in a stopped state and handles a + * stop request. This function takes no action. enum sci_status SCI_SUCCESS the + * stop request is successful as the struct scic_sds_port object is already stopped. + */ +static enum sci_status scic_sds_port_stopped_state_stop_handler( + struct scic_sds_port *port) +{ + /* We are already stopped so there is nothing to do here */ + return SCI_SUCCESS; +} + +/* + * This method takes the struct scic_sds_port that is in a stopped state and handles + * the destruct request. The stopped state is the only state in which the + * struct scic_sds_port can be destroyed. This function causes the port object to + * transition to the SCI_BASE_PORT_STATE_FINAL. enum sci_status SCI_SUCCESS + */ +static enum sci_status scic_sds_port_stopped_state_destruct_handler( + struct scic_sds_port *port) +{ + sci_base_state_machine_stop(&port->state_machine); + + return SCI_SUCCESS; +} + +/* + * This method takes the struct scic_sds_port that is in a stopped state and handles + * the add phy request. In MPC mode the only time a phy can be added to a port + * is in the SCI_BASE_PORT_STATE_STOPPED. enum sci_status + * SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION is returned when the phy can not + * be added to the port. SCI_SUCCESS if the phy is added to the port. + */ +static enum sci_status scic_sds_port_stopped_state_add_phy_handler( + struct scic_sds_port *port, + struct scic_sds_phy *phy) +{ + struct sci_sas_address port_sas_address; + + /* Read the port assigned SAS Address if there is one */ + scic_sds_port_get_sas_address(port, &port_sas_address); + + if (port_sas_address.high != 0 && port_sas_address.low != 0) { + struct sci_sas_address phy_sas_address; + + /* + * Make sure that the PHY SAS Address matches the SAS Address + * for this port. */ + scic_sds_phy_get_sas_address(phy, &phy_sas_address); + + if ( + (port_sas_address.high != phy_sas_address.high) + || (port_sas_address.low != phy_sas_address.low) + ) { + return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; + } + } + + return scic_sds_port_set_phy(port, phy); +} + +/* + * This method takes the struct scic_sds_port that is in a stopped state and handles + * the remove phy request. In MPC mode the only time a phy can be removed from + * a port is in the SCI_BASE_PORT_STATE_STOPPED. enum sci_status + * SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION is returned when the phy can not + * be added to the port. SCI_SUCCESS if the phy is added to the port. + */ +static enum sci_status scic_sds_port_stopped_state_remove_phy_handler( + struct scic_sds_port *port, + struct scic_sds_phy *phy) +{ + return scic_sds_port_clear_phy(port, phy); +} + +/* + * **************************************************************************** + * * READY STATE HANDLERS + * **************************************************************************** */ + +/* + * **************************************************************************** + * * RESETTING STATE HANDLERS + * **************************************************************************** */ + +/* + * **************************************************************************** + * * STOPPING STATE HANDLERS + * **************************************************************************** */ + +/* + * This method takes the struct scic_sds_port that is in a stopping state and handles + * the complete io request. Should the request count reach 0 then the port + * object will transition to the stopped state. enum sci_status SCI_SUCCESS + */ +static enum sci_status scic_sds_port_stopping_state_complete_io_handler( + struct scic_sds_port *sci_port, + struct scic_sds_remote_device *device, + struct scic_sds_request *io_request) +{ + scic_sds_port_decrement_request_count(sci_port); + + if (sci_port->started_request_count == 0) { + sci_base_state_machine_change_state(&sci_port->state_machine, + SCI_BASE_PORT_STATE_STOPPED); + } + + return SCI_SUCCESS; +} + +/* + * **************************************************************************** + * * RESETTING STATE HANDLERS + * **************************************************************************** */ + +/** + * + * @port: This is the port object which is being requested to stop. + * + * This method will stop a failed port. This causes a transition to the + * stopping state. enum sci_status SCI_SUCCESS + */ +static enum sci_status scic_sds_port_reset_state_stop_handler( + struct scic_sds_port *port) +{ + sci_base_state_machine_change_state( + &port->state_machine, + SCI_BASE_PORT_STATE_STOPPING + ); + + return SCI_SUCCESS; +} + +/* + * This method will transition a failed port to its ready state. The port + * failed because a hard reset request timed out but at some time later one or + * more phys in the port became ready. enum sci_status SCI_SUCCESS + */ +static void scic_sds_port_reset_state_link_up_handler( + struct scic_sds_port *port, + struct scic_sds_phy *phy) +{ + /* + * / @todo We should make sure that the phy that has gone link up is the same + * / one on which we sent the reset. It is possible that the phy on + * / which we sent the reset is not the one that has gone link up and we + * / want to make sure that phy being reset comes back. Consider the + * / case where a reset is sent but before the hardware processes the + * / reset it get a link up on the port because of a hot plug event. + * / because of the reset request this phy will go link down almost + * / immediately. */ + + /* + * In the resetting state we don't notify the user regarding + * link up and link down notifications. */ + scic_sds_port_general_link_up_handler(port, phy, false); +} + +/* + * This method process link down notifications that occur during a port reset + * operation. Link downs can occur during the reset operation. enum sci_status + * SCI_SUCCESS + */ +static void scic_sds_port_reset_state_link_down_handler( + struct scic_sds_port *port, + struct scic_sds_phy *phy) +{ + /* + * In the resetting state we don't notify the user regarding + * link up and link down notifications. */ + scic_sds_port_deactivate_phy(port, phy, false); +} + +static struct scic_sds_port_state_handler +scic_sds_port_state_handler_table[SCI_BASE_PORT_MAX_STATES] = +{ + /* SCI_BASE_PORT_STATE_STOPPED */ + { + scic_sds_port_stopped_state_start_handler, + scic_sds_port_stopped_state_stop_handler, + scic_sds_port_stopped_state_destruct_handler, + scic_sds_port_default_reset_handler, + scic_sds_port_stopped_state_add_phy_handler, + scic_sds_port_stopped_state_remove_phy_handler, + scic_sds_port_default_frame_handler, + scic_sds_port_default_event_handler, + scic_sds_port_default_link_up_handler, + scic_sds_port_default_link_down_handler, + scic_sds_port_default_start_io_handler, + scic_sds_port_default_complete_io_handler + }, + /* SCI_BASE_PORT_STATE_STOPPING */ + { + scic_sds_port_default_start_handler, + scic_sds_port_default_stop_handler, + scic_sds_port_default_destruct_handler, + scic_sds_port_default_reset_handler, + scic_sds_port_default_add_phy_handler, + scic_sds_port_default_remove_phy_handler, + scic_sds_port_default_frame_handler, + scic_sds_port_default_event_handler, + scic_sds_port_default_link_up_handler, + scic_sds_port_default_link_down_handler, + scic_sds_port_default_start_io_handler, + scic_sds_port_stopping_state_complete_io_handler + }, + /* SCI_BASE_PORT_STATE_READY */ + { + scic_sds_port_default_start_handler, + scic_sds_port_default_stop_handler, + scic_sds_port_default_destruct_handler, + scic_sds_port_default_reset_handler, + scic_sds_port_default_add_phy_handler, + scic_sds_port_default_remove_phy_handler, + scic_sds_port_default_frame_handler, + scic_sds_port_default_event_handler, + scic_sds_port_default_link_up_handler, + scic_sds_port_default_link_down_handler, + scic_sds_port_default_start_io_handler, + scic_sds_port_general_complete_io_handler + }, + /* SCI_BASE_PORT_STATE_RESETTING */ + { + scic_sds_port_default_start_handler, + scic_sds_port_reset_state_stop_handler, + scic_sds_port_default_destruct_handler, + scic_sds_port_default_reset_handler, + scic_sds_port_default_add_phy_handler, + scic_sds_port_default_remove_phy_handler, + scic_sds_port_default_frame_handler, + scic_sds_port_default_event_handler, + scic_sds_port_reset_state_link_up_handler, + scic_sds_port_reset_state_link_down_handler, + scic_sds_port_default_start_io_handler, + scic_sds_port_general_complete_io_handler + }, + /* SCI_BASE_PORT_STATE_FAILED */ + { + scic_sds_port_default_start_handler, + scic_sds_port_default_stop_handler, + scic_sds_port_default_destruct_handler, + scic_sds_port_default_reset_handler, + scic_sds_port_default_add_phy_handler, + scic_sds_port_default_remove_phy_handler, + scic_sds_port_default_frame_handler, + scic_sds_port_default_event_handler, + scic_sds_port_default_link_up_handler, + scic_sds_port_default_link_down_handler, + scic_sds_port_default_start_io_handler, + scic_sds_port_general_complete_io_handler + } +}; + +/* + * ****************************************************************************** + * * PORT STATE PRIVATE METHODS + * ****************************************************************************** */ + +/** + * + * @sci_port: This is the port object which to suspend. + * + * This method will enable the SCU Port Task Scheduler for this port object but + * will leave the port task scheduler in a suspended state. none + */ +static void +scic_sds_port_enable_port_task_scheduler(struct scic_sds_port *port) +{ + u32 pts_control_value; + + pts_control_value = readl(&port->port_task_scheduler_registers->control); + pts_control_value |= SCU_PTSxCR_GEN_BIT(ENABLE) | SCU_PTSxCR_GEN_BIT(SUSPEND); + writel(pts_control_value, &port->port_task_scheduler_registers->control); +} + +/** + * + * @sci_port: This is the port object which to resume. + * + * This method will disable the SCU port task scheduler for this port object. + * none + */ +static void +scic_sds_port_disable_port_task_scheduler(struct scic_sds_port *port) +{ + u32 pts_control_value; + + pts_control_value = readl(&port->port_task_scheduler_registers->control); + pts_control_value &= + ~(SCU_PTSxCR_GEN_BIT(ENABLE) | SCU_PTSxCR_GEN_BIT(SUSPEND)); + writel(pts_control_value, &port->port_task_scheduler_registers->control); +} + +static void scic_sds_port_post_dummy_remote_node(struct scic_sds_port *sci_port) +{ + struct scic_sds_controller *scic = sci_port->owning_controller; + u8 phys_index = sci_port->physical_port_index; + union scu_remote_node_context *rnc; + u16 rni = sci_port->reserved_rni; + u32 command; + + rnc = &scic->remote_node_context_table[rni]; + rnc->ssp.is_valid = true; + + command = SCU_CONTEXT_COMMAND_POST_RNC_32 | + phys_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | rni; + + scic_sds_controller_post_request(scic, command); + + /* ensure hardware has seen the post rnc command and give it + * ample time to act before sending the suspend + */ + readl(&scic->smu_registers->interrupt_status); /* flush */ + udelay(10); + + command = SCU_CONTEXT_COMMAND_POST_RNC_SUSPEND_TX_RX | + phys_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | rni; + + scic_sds_controller_post_request(scic, command); +} + +static void scic_sds_port_invalidate_dummy_remote_node(struct scic_sds_port *sci_port) +{ + struct scic_sds_controller *scic = sci_port->owning_controller; + u8 phys_index = sci_port->physical_port_index; + union scu_remote_node_context *rnc; + u16 rni = sci_port->reserved_rni; + u32 command; + + rnc = &scic->remote_node_context_table[rni]; + + rnc->ssp.is_valid = false; + + /* ensure the preceding tc abort request has reached the + * controller and give it ample time to act before posting the rnc + * invalidate + */ + readl(&scic->smu_registers->interrupt_status); /* flush */ + udelay(10); + + command = SCU_CONTEXT_COMMAND_POST_RNC_INVALIDATE | + phys_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | rni; + + scic_sds_controller_post_request(scic, command); +} + +/* + * ****************************************************************************** + * * PORT STATE METHODS + * ****************************************************************************** */ + +/** + * + * @object: This is the object which is cast to a struct scic_sds_port object. + * + * This method will perform the actions required by the struct scic_sds_port on + * entering the SCI_BASE_PORT_STATE_STOPPED. This function sets the stopped + * state handlers for the struct scic_sds_port object and disables the port task + * scheduler in the hardware. none + */ +static void scic_sds_port_stopped_state_enter(void *object) +{ + struct scic_sds_port *sci_port = object; + + scic_sds_port_set_base_state_handlers( + sci_port, SCI_BASE_PORT_STATE_STOPPED + ); + + if ( + SCI_BASE_PORT_STATE_STOPPING + == sci_port->state_machine.previous_state_id + ) { + /* + * If we enter this state becasuse of a request to stop + * the port then we want to disable the hardwares port + * task scheduler. */ + scic_sds_port_disable_port_task_scheduler(sci_port); + } +} + +/** + * + * @object: This is the object which is cast to a struct scic_sds_port object. + * + * This method will perform the actions required by the struct scic_sds_port on + * exiting the SCI_BASE_STATE_STOPPED. This function enables the SCU hardware + * port task scheduler. none + */ +static void scic_sds_port_stopped_state_exit(void *object) +{ + struct scic_sds_port *sci_port = object; + + /* Enable and suspend the port task scheduler */ + scic_sds_port_enable_port_task_scheduler(sci_port); +} + +/** + * scic_sds_port_ready_state_enter - + * @object: This is the object which is cast to a struct scic_sds_port object. + * + * This method will perform the actions required by the struct scic_sds_port on + * entering the SCI_BASE_PORT_STATE_READY. This function sets the ready state + * handlers for the struct scic_sds_port object, reports the port object as + * not ready and starts the ready substate machine. none + */ +static void scic_sds_port_ready_state_enter(void *object) +{ + struct scic_sds_port *sci_port = object; + struct scic_sds_controller *scic = sci_port->owning_controller; + struct isci_host *ihost = scic_to_ihost(scic); + struct isci_port *iport = sci_port_to_iport(sci_port); + u32 prev_state; + + /* Put the ready state handlers in place though they will not be there long */ + scic_sds_port_set_base_state_handlers(sci_port, SCI_BASE_PORT_STATE_READY); + + prev_state = sci_port->state_machine.previous_state_id; + if (prev_state == SCI_BASE_PORT_STATE_RESETTING) + isci_port_hard_reset_complete(iport, SCI_SUCCESS); + else + isci_port_not_ready(ihost, iport); + + /* Post and suspend the dummy remote node context for this port. */ + scic_sds_port_post_dummy_remote_node(sci_port); + + /* Start the ready substate machine */ + sci_base_state_machine_start(&sci_port->ready_substate_machine); +} + +static void scic_sds_port_ready_state_exit(void *object) +{ + struct scic_sds_port *sci_port = object; + + sci_base_state_machine_stop(&sci_port->ready_substate_machine); + scic_sds_port_invalidate_dummy_remote_node(sci_port); +} + +/** + * + * @object: This is the object which is cast to a struct scic_sds_port object. + * + * This method will perform the actions required by the struct scic_sds_port on + * entering the SCI_BASE_PORT_STATE_RESETTING. This function sets the resetting + * state handlers for the struct scic_sds_port object. none + */ +static void scic_sds_port_resetting_state_enter(void *object) +{ + struct scic_sds_port *sci_port = object; + + scic_sds_port_set_base_state_handlers( + sci_port, SCI_BASE_PORT_STATE_RESETTING + ); +} + +/** + * + * @object: This is the object which is cast to a struct scic_sds_port object. + * + * This function will perform the actions required by the + * struct scic_sds_port on + * exiting the SCI_BASE_STATE_RESETTING. This function does nothing. none + */ +static inline void scic_sds_port_resetting_state_exit(void *object) +{ + struct scic_sds_port *sci_port = object; + + isci_timer_stop(sci_port->timer_handle); +} + +/** + * + * @object: This is the void object which is cast to a + * struct scic_sds_port object. + * + * This method will perform the actions required by the struct scic_sds_port on + * entering the SCI_BASE_PORT_STATE_STOPPING. This function sets the stopping + * state handlers for the struct scic_sds_port object. none + */ +static void scic_sds_port_stopping_state_enter(void *object) +{ + struct scic_sds_port *sci_port = object; + + scic_sds_port_set_base_state_handlers( + sci_port, SCI_BASE_PORT_STATE_STOPPING + ); +} + +/** + * + * @object: This is the object which is cast to a struct scic_sds_port object. + * + * This function will perform the actions required by the + * struct scic_sds_port on + * exiting the SCI_BASE_STATE_STOPPING. This function does nothing. none + */ +static inline void +scic_sds_port_stopping_state_exit(void *object) +{ + struct scic_sds_port *sci_port = object; + + isci_timer_stop(sci_port->timer_handle); + + scic_sds_port_destroy_dummy_resources(sci_port); +} + +/** + * + * @object: This is the object which is cast to a struct scic_sds_port object. + * + * This function will perform the actions required by the + * struct scic_sds_port on + * entering the SCI_BASE_PORT_STATE_STOPPING. This function sets the stopping + * state handlers for the struct scic_sds_port object. none + */ +static void scic_sds_port_failed_state_enter(void *object) +{ + struct scic_sds_port *sci_port = object; + struct isci_port *iport = sci_port_to_iport(sci_port); + + scic_sds_port_set_base_state_handlers(sci_port, + SCI_BASE_PORT_STATE_FAILED); + + isci_port_hard_reset_complete(iport, SCI_FAILURE_TIMEOUT); +} + +/* --------------------------------------------------------------------------- */ + +static const struct sci_base_state scic_sds_port_state_table[] = { + [SCI_BASE_PORT_STATE_STOPPED] = { + .enter_state = scic_sds_port_stopped_state_enter, + .exit_state = scic_sds_port_stopped_state_exit + }, + [SCI_BASE_PORT_STATE_STOPPING] = { + .enter_state = scic_sds_port_stopping_state_enter, + .exit_state = scic_sds_port_stopping_state_exit + }, + [SCI_BASE_PORT_STATE_READY] = { + .enter_state = scic_sds_port_ready_state_enter, + .exit_state = scic_sds_port_ready_state_exit + }, + [SCI_BASE_PORT_STATE_RESETTING] = { + .enter_state = scic_sds_port_resetting_state_enter, + .exit_state = scic_sds_port_resetting_state_exit + }, + [SCI_BASE_PORT_STATE_FAILED] = { + .enter_state = scic_sds_port_failed_state_enter, + } +}; + +void scic_sds_port_construct(struct scic_sds_port *sci_port, u8 index, + struct scic_sds_controller *scic) +{ + sci_base_state_machine_construct(&sci_port->state_machine, + sci_port, + scic_sds_port_state_table, + SCI_BASE_PORT_STATE_STOPPED); + + sci_base_state_machine_start(&sci_port->state_machine); + + sci_base_state_machine_construct(&sci_port->ready_substate_machine, + sci_port, + scic_sds_port_ready_substate_table, + SCIC_SDS_PORT_READY_SUBSTATE_WAITING); + + sci_port->logical_port_index = SCIC_SDS_DUMMY_PORT; + sci_port->physical_port_index = index; + sci_port->active_phy_mask = 0; + + sci_port->owning_controller = scic; + + sci_port->started_request_count = 0; + sci_port->assigned_device_count = 0; + + sci_port->reserved_rni = SCU_DUMMY_INDEX; + sci_port->reserved_tci = SCU_DUMMY_INDEX; + + sci_port->timer_handle = NULL; + sci_port->port_task_scheduler_registers = NULL; + + for (index = 0; index < SCI_MAX_PHYS; index++) + sci_port->phy_table[index] = NULL; +} + +void isci_port_init(struct isci_port *iport, struct isci_host *ihost, int index) +{ + INIT_LIST_HEAD(&iport->remote_dev_list); + INIT_LIST_HEAD(&iport->domain_dev_list); + spin_lock_init(&iport->state_lock); + init_completion(&iport->start_complete); + iport->isci_host = ihost; + isci_port_change_state(iport, isci_freed); +} + +/** + * isci_port_get_state() - This function gets the status of the port object. + * @isci_port: This parameter points to the isci_port object + * + * status of the object as a isci_status enum. + */ +enum isci_status isci_port_get_state( + struct isci_port *isci_port) +{ + return isci_port->status; +} + +static void isci_port_bc_change_received(struct isci_host *ihost, + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) +{ + struct isci_phy *iphy = sci_phy_to_iphy(sci_phy); + + dev_dbg(&ihost->pdev->dev, "%s: iphy = %p, sas_phy = %p\n", + __func__, iphy, &iphy->sas_phy); + + ihost->sas_ha.notify_port_event(&iphy->sas_phy, PORTE_BROADCAST_RCVD); + scic_port_enable_broadcast_change_notification(sci_port); +} + +void scic_sds_port_broadcast_change_received( + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) +{ + struct scic_sds_controller *scic = sci_port->owning_controller; + struct isci_host *ihost = scic_to_ihost(scic); + + /* notify the user. */ + isci_port_bc_change_received(ihost, sci_port, sci_phy); +} + +int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *iport, + struct isci_phy *iphy) +{ + unsigned long flags; + enum sci_status status; + int ret = TMF_RESP_FUNC_COMPLETE; + + dev_dbg(&ihost->pdev->dev, "%s: iport = %p\n", + __func__, iport); + + init_completion(&iport->hard_reset_complete); + + spin_lock_irqsave(&ihost->scic_lock, flags); + + #define ISCI_PORT_RESET_TIMEOUT SCIC_SDS_SIGNATURE_FIS_TIMEOUT + status = scic_port_hard_reset(&iport->sci, ISCI_PORT_RESET_TIMEOUT); + + spin_unlock_irqrestore(&ihost->scic_lock, flags); + + if (status == SCI_SUCCESS) { + wait_for_completion(&iport->hard_reset_complete); + + dev_dbg(&ihost->pdev->dev, + "%s: iport = %p; hard reset completion\n", + __func__, iport); + + if (iport->hard_reset_status != SCI_SUCCESS) + ret = TMF_RESP_FUNC_FAILED; + } else { + ret = TMF_RESP_FUNC_FAILED; + + dev_err(&ihost->pdev->dev, + "%s: iport = %p; scic_port_hard_reset call" + " failed 0x%x\n", + __func__, iport, status); + + } + + /* If the hard reset for the port has failed, consider this + * the same as link failures on all phys in the port. + */ + if (ret != TMF_RESP_FUNC_COMPLETE) { + dev_err(&ihost->pdev->dev, + "%s: iport = %p; hard reset failed " + "(0x%x) - sending link down to libsas for phy %p\n", + __func__, iport, iport->hard_reset_status, iphy); + + isci_port_link_down(ihost, iphy, iport); + } + + return ret; +} + +/** + * isci_port_deformed() - This function is called by libsas when a port becomes + * inactive. + * @phy: This parameter specifies the libsas phy with the inactive port. + * + */ +void isci_port_deformed(struct asd_sas_phy *phy) +{ + pr_debug("%s: sas_phy = %p\n", __func__, phy); +} + +/** + * isci_port_formed() - This function is called by libsas when a port becomes + * active. + * @phy: This parameter specifies the libsas phy with the active port. + * + */ +void isci_port_formed(struct asd_sas_phy *phy) +{ + pr_debug("%s: sas_phy = %p, sas_port = %p\n", __func__, phy, phy->port); } diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index 59505cbf2bb..ea41dcead3a 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -58,7 +58,10 @@ #include #include "isci.h" -#include "scic_sds_port.h" +#include "sas.h" +#include "phy.h" + +#define SCIC_SDS_DUMMY_PORT 0xFF struct isci_phy; struct isci_host; @@ -72,6 +75,111 @@ enum isci_status { isci_stopped = 0x05, }; +/** + * struct scic_sds_port + * + * The core port object provides the the abstraction for an SCU port. + */ +struct scic_sds_port { + + /** + * This field contains the information for the base port state machine. + */ + struct sci_base_state_machine state_machine; + + /** + * This field is the port index that is reported to the SCI USER. + * This allows the actual hardware physical port to change without + * the SCI USER getting a different answer for the get port index. + */ + u8 logical_port_index; + + /** + * This field is the port index used to program the SCU hardware. + */ + u8 physical_port_index; + + /** + * This field contains the active phy mask for the port. + * This mask is used in conjunction with the phy state to determine + * which phy to select for some port operations. + */ + u8 active_phy_mask; + + u16 reserved_rni; + u16 reserved_tci; + + /** + * This field contains the count of the io requests started on this port + * object. It is used to control controller shutdown. + */ + u32 started_request_count; + + /** + * This field contains the number of devices assigned to this port. + * It is used to control port start requests. + */ + u32 assigned_device_count; + + /** + * This field contains the reason for the port not going ready. It is + * assigned in the state handlers and used in the state transition. + */ + u32 not_ready_reason; + + /** + * This field is the table of phys assigned to the port. + */ + struct scic_sds_phy *phy_table[SCI_MAX_PHYS]; + + /** + * This field is a pointer back to the controller that owns this + * port object. + */ + struct scic_sds_controller *owning_controller; + + /** + * This field contains the port start/stop timer handle. + */ + void *timer_handle; + + /** + * This field points to the current set of state handlers for this port + * object. These state handlers are assigned at each enter state of + * the state machine. + */ + struct scic_sds_port_state_handler *state_handlers; + + /** + * This field is the ready substate machine for the port. + */ + struct sci_base_state_machine ready_substate_machine; + + /* / Memory mapped hardware register space */ + + /** + * This field is the pointer to the port task scheduler registers + * for the SCU hardware. + */ + struct scu_port_task_scheduler_registers __iomem + *port_task_scheduler_registers; + + /** + * This field is identical for all port objects and points to the port + * task scheduler group PE configuration registers. + * It is used to assign PEs to a port. + */ + u32 __iomem *port_pe_configuration_register; + + /** + * This field is the VIIT register space for ths port object. + */ + struct scu_viit_entry __iomem *viit_registers; + +}; + + + /** * struct isci_port - This class represents the port object used to internally * represent libsas port objects. It also keeps a list of remote device @@ -99,54 +207,301 @@ static inline struct isci_port *sci_port_to_iport(struct scic_sds_port *sci_port return iport; } -enum isci_status isci_port_get_state( - struct isci_port *isci_port); +enum scic_port_not_ready_reason_code { + SCIC_PORT_NOT_READY_NO_ACTIVE_PHYS, + SCIC_PORT_NOT_READY_HARD_RESET_REQUESTED, + SCIC_PORT_NOT_READY_INVALID_PORT_CONFIGURATION, + SCIC_PORT_NOT_READY_RECONFIGURING, + + SCIC_PORT_NOT_READY_REASON_CODE_MAX +}; + +struct scic_port_end_point_properties { + struct sci_sas_address sas_address; + struct scic_phy_proto protocols; +}; + +struct scic_port_properties { + u32 index; + struct scic_port_end_point_properties local; + struct scic_port_end_point_properties remote; + u32 phy_mask; +}; + +/** + * enum SCIC_SDS_PORT_READY_SUBSTATES - + * + * This enumeration depicts all of the states for the core port ready substate + * machine. + */ +enum scic_sds_port_ready_substates { + /** + * The substate where the port is started and ready but has no + * active phys. + */ + SCIC_SDS_PORT_READY_SUBSTATE_WAITING, + + /** + * The substate where the port is started and ready and there is + * at least one phy operational. + */ + SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL, + + /** + * The substate where the port is started and there was an + * add/remove phy event. This state is only used in Automatic + * Port Configuration Mode (APC) + */ + SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING, + + SCIC_SDS_PORT_READY_MAX_SUBSTATES +}; + +/** + * enum scic_sds_port_states - This enumeration depicts all the states for the + * common port state machine. + * + * + */ +enum scic_sds_port_states { + /** + * This state indicates that the port has successfully been stopped. + * In this state no new IO operations are permitted. + * This state is entered from the STOPPING state. + */ + SCI_BASE_PORT_STATE_STOPPED, + + /** + * This state indicates that the port is in the process of stopping. + * In this state no new IO operations are permitted, but existing IO + * operations are allowed to complete. + * This state is entered from the READY state. + */ + SCI_BASE_PORT_STATE_STOPPING, + + /** + * This state indicates the port is now ready. Thus, the user is + * able to perform IO operations on this port. + * This state is entered from the STARTING state. + */ + SCI_BASE_PORT_STATE_READY, + + /** + * This state indicates the port is in the process of performing a hard + * reset. Thus, the user is unable to perform IO operations on this + * port. + * This state is entered from the READY state. + */ + SCI_BASE_PORT_STATE_RESETTING, + + /** + * This state indicates the port has failed a reset request. This state + * is entered when a port reset request times out. + * This state is entered from the RESETTING state. + */ + SCI_BASE_PORT_STATE_FAILED, + + SCI_BASE_PORT_MAX_STATES + +}; + +struct scic_sds_remote_device; +struct scic_sds_request; + +typedef enum sci_status (*scic_sds_port_handler_t)(struct scic_sds_port *); -void isci_port_formed( - struct asd_sas_phy *); +typedef enum sci_status (*scic_sds_port_phy_handler_t)(struct scic_sds_port *, + struct scic_sds_phy *); -void isci_port_deformed( - struct asd_sas_phy *); +typedef enum sci_status (*scic_sds_port_reset_handler_t)(struct scic_sds_port *, + u32 timeout); -void isci_port_bc_change_received( - struct isci_host *isci_host, - struct scic_sds_port *port, - struct scic_sds_phy *phy); +typedef enum sci_status (*scic_sds_port_event_handler_t)(struct scic_sds_port *, u32); -void isci_port_link_up( - struct isci_host *isci_host, - struct scic_sds_port *port, - struct scic_sds_phy *phy); +typedef enum sci_status (*scic_sds_port_frame_handler_t)(struct scic_sds_port *, u32); -void isci_port_link_down( - struct isci_host *isci_host, - struct isci_phy *isci_phy, - struct isci_port *port); +typedef void (*scic_sds_port_link_handler_t)(struct scic_sds_port *, struct scic_sds_phy *); -void isci_port_ready( - struct isci_host *isci_host, +typedef enum sci_status (*scic_sds_port_io_request_handler_t)(struct scic_sds_port *, + struct scic_sds_remote_device *, + struct scic_sds_request *); + +struct scic_sds_port_state_handler { + /** + * The start_handler specifies the method invoked when a user + * attempts to start a port. + */ + scic_sds_port_handler_t start_handler; + + /** + * The stop_handler specifies the method invoked when a user + * attempts to stop a port. + */ + scic_sds_port_handler_t stop_handler; + + /** + * The destruct_handler specifies the method invoked when attempting to + * destruct a port. + */ + scic_sds_port_handler_t destruct_handler; + + /** + * The reset_handler specifies the method invoked when a user + * attempts to hard reset a port. + */ + scic_sds_port_reset_handler_t reset_handler; + + /** + * The add_phy_handler specifies the method invoked when a user + * attempts to add another phy into the port. + */ + scic_sds_port_phy_handler_t add_phy_handler; + + /** + * The remove_phy_handler specifies the method invoked when a user + * attempts to remove a phy from the port. + */ + scic_sds_port_phy_handler_t remove_phy_handler; + + scic_sds_port_frame_handler_t frame_handler; + scic_sds_port_event_handler_t event_handler; + + scic_sds_port_link_handler_t link_up_handler; + scic_sds_port_link_handler_t link_down_handler; + + scic_sds_port_io_request_handler_t start_io_handler; + scic_sds_port_io_request_handler_t complete_io_handler; + +}; + +/** + * scic_sds_port_get_controller() - + * + * Helper macro to get the owning controller of this port + */ +#define scic_sds_port_get_controller(this_port) \ + ((this_port)->owning_controller) + +/** + * scic_sds_port_set_base_state_handlers() - + * + * This macro will change the state handlers to those of the specified state id + */ +#define scic_sds_port_set_base_state_handlers(this_port, state_id) \ + scic_sds_port_set_state_handlers(\ + (this_port), &scic_sds_port_state_handler_table[(state_id)]) + +/** + * scic_sds_port_set_state_handlers() - + * + * Helper macro to set the port object state handlers + */ +#define scic_sds_port_set_state_handlers(this_port, handlers) \ + ((this_port)->state_handlers = (handlers)) + +/** + * scic_sds_port_get_index() - + * + * This macro returns the physical port index for this port object + */ +#define scic_sds_port_get_index(this_port) \ + ((this_port)->physical_port_index) + + +static inline void scic_sds_port_decrement_request_count(struct scic_sds_port *sci_port) +{ + if (WARN_ONCE(sci_port->started_request_count == 0, + "%s: tried to decrement started_request_count past 0!?", + __func__)) + /* pass */; + else + sci_port->started_request_count--; +} + +#define scic_sds_port_active_phy(port, phy) \ + (((port)->active_phy_mask & (1 << (phy)->phy_index)) != 0) + +void scic_sds_port_construct( + struct scic_sds_port *sci_port, + u8 port_index, + struct scic_sds_controller *scic); + +enum sci_status scic_sds_port_initialize( + struct scic_sds_port *sci_port, + void __iomem *port_task_scheduler_registers, + void __iomem *port_configuration_regsiter, + void __iomem *viit_registers); + +enum sci_status scic_sds_port_add_phy( + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy); + +enum sci_status scic_sds_port_remove_phy( + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy); + +void scic_sds_port_setup_transports( + struct scic_sds_port *sci_port, + u32 device_id); + + +void scic_sds_port_deactivate_phy( + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy, + bool do_notify_user); + +bool scic_sds_port_link_detected( + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy); + +void scic_sds_port_link_up( + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy); + +void scic_sds_port_link_down( + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy); + +enum sci_status scic_sds_port_start_io( + struct scic_sds_port *sci_port, + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *sci_req); + +enum sci_status scic_sds_port_complete_io( + struct scic_sds_port *sci_port, + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *sci_req); + +enum sas_linkrate scic_sds_port_get_max_allowed_speed( + struct scic_sds_port *sci_port); + +void scic_sds_port_broadcast_change_received( + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy); + +bool scic_sds_port_is_valid_phy_assignment( + struct scic_sds_port *sci_port, + u32 phy_index); + +void scic_sds_port_get_sas_address( + struct scic_sds_port *sci_port, + struct sci_sas_address *sas_address); + +void scic_sds_port_get_attached_sas_address( + struct scic_sds_port *sci_port, + struct sci_sas_address *sas_address); + +enum isci_status isci_port_get_state( struct isci_port *isci_port); -void isci_port_not_ready( - struct isci_host *isci_host, - struct isci_port *port); +void isci_port_formed(struct asd_sas_phy *); +void isci_port_deformed(struct asd_sas_phy *); void isci_port_init( struct isci_port *port, struct isci_host *host, int index); -void isci_port_hard_reset_complete( - struct isci_port *isci_port, - enum sci_status completion_status); - int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *iport, struct isci_phy *iphy); - -void isci_port_stop_complete( - struct scic_sds_controller *scic, - struct scic_sds_port *sci_port, - enum sci_status completion_status); - #endif /* !defined(_ISCI_PORT_H_) */ - diff --git a/drivers/scsi/isci/port_config.c b/drivers/scsi/isci/port_config.c new file mode 100644 index 00000000000..028ffa370c9 --- /dev/null +++ b/drivers/scsi/isci/port_config.c @@ -0,0 +1,826 @@ +/* + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * BSD LICENSE + * + * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "host.h" +#include "timers.h" + +#define SCIC_SDS_MPC_RECONFIGURATION_TIMEOUT (10) +#define SCIC_SDS_APC_RECONFIGURATION_TIMEOUT (10) +#define SCIC_SDS_APC_WAIT_LINK_UP_NOTIFICATION (100) + +enum SCIC_SDS_APC_ACTIVITY { + SCIC_SDS_APC_SKIP_PHY, + SCIC_SDS_APC_ADD_PHY, + SCIC_SDS_APC_START_TIMER, + + SCIC_SDS_APC_ACTIVITY_MAX +}; + +/* + * ****************************************************************************** + * General port configuration agent routines + * ****************************************************************************** */ + +/** + * + * @address_one: A SAS Address to be compared. + * @address_two: A SAS Address to be compared. + * + * Compare the two SAS Address and if SAS Address One is greater than SAS + * Address Two then return > 0 else if SAS Address One is less than SAS Address + * Two return < 0 Otherwise they are the same return 0 A signed value of x > 0 + * > y where x is returned for Address One > Address Two y is returned for + * Address One < Address Two 0 is returned ofr Address One = Address Two + */ +static s32 sci_sas_address_compare( + struct sci_sas_address address_one, + struct sci_sas_address address_two) +{ + if (address_one.high > address_two.high) { + return 1; + } else if (address_one.high < address_two.high) { + return -1; + } else if (address_one.low > address_two.low) { + return 1; + } else if (address_one.low < address_two.low) { + return -1; + } + + /* The two SAS Address must be identical */ + return 0; +} + +/** + * + * @controller: The controller object used for the port search. + * @phy: The phy object to match. + * + * This routine will find a matching port for the phy. This means that the + * port and phy both have the same broadcast sas address and same received sas + * address. The port address or the NULL if there is no matching + * port. port address if the port can be found to match the phy. + * NULL if there is no matching port for the phy. + */ +static struct scic_sds_port *scic_sds_port_configuration_agent_find_port( + struct scic_sds_controller *scic, + struct scic_sds_phy *phy) +{ + u8 i; + struct sci_sas_address port_sas_address; + struct sci_sas_address port_attached_device_address; + struct sci_sas_address phy_sas_address; + struct sci_sas_address phy_attached_device_address; + + /* + * Since this phy can be a member of a wide port check to see if one or + * more phys match the sent and received SAS address as this phy in which + * case it should participate in the same port. + */ + scic_sds_phy_get_sas_address(phy, &phy_sas_address); + scic_sds_phy_get_attached_sas_address(phy, &phy_attached_device_address); + + for (i = 0; i < scic->logical_port_entries; i++) { + struct isci_host *ihost = scic_to_ihost(scic); + struct scic_sds_port *sci_port = &ihost->ports[i].sci; + + scic_sds_port_get_sas_address(sci_port, &port_sas_address); + scic_sds_port_get_attached_sas_address(sci_port, &port_attached_device_address); + + if (sci_sas_address_compare(port_sas_address, phy_sas_address) == 0 && + sci_sas_address_compare(port_attached_device_address, phy_attached_device_address) == 0) + return sci_port; + } + + return NULL; +} + +/** + * + * @controller: This is the controller object that contains the port agent + * @port_agent: This is the port configruation agent for the controller. + * + * This routine will validate the port configuration is correct for the SCU + * hardware. The SCU hardware allows for port configurations as follows. LP0 + * -> (PE0), (PE0, PE1), (PE0, PE1, PE2, PE3) LP1 -> (PE1) LP2 -> (PE2), (PE2, + * PE3) LP3 -> (PE3) enum sci_status SCI_SUCCESS the port configuration is valid for + * this port configuration agent. SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION + * the port configuration is not valid for this port configuration agent. + */ +static enum sci_status scic_sds_port_configuration_agent_validate_ports( + struct scic_sds_controller *controller, + struct scic_sds_port_configuration_agent *port_agent) +{ + struct isci_host *ihost = scic_to_ihost(controller); + struct sci_sas_address first_address; + struct sci_sas_address second_address; + + /* + * Sanity check the max ranges for all the phys the max index + * is always equal to the port range index */ + if (port_agent->phy_valid_port_range[0].max_index != 0 || + port_agent->phy_valid_port_range[1].max_index != 1 || + port_agent->phy_valid_port_range[2].max_index != 2 || + port_agent->phy_valid_port_range[3].max_index != 3) + return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; + + /* + * This is a request to configure a single x4 port or at least attempt + * to make all the phys into a single port */ + if (port_agent->phy_valid_port_range[0].min_index == 0 && + port_agent->phy_valid_port_range[1].min_index == 0 && + port_agent->phy_valid_port_range[2].min_index == 0 && + port_agent->phy_valid_port_range[3].min_index == 0) + return SCI_SUCCESS; + + /* + * This is a degenerate case where phy 1 and phy 2 are assigned + * to the same port this is explicitly disallowed by the hardware + * unless they are part of the same x4 port and this condition was + * already checked above. */ + if (port_agent->phy_valid_port_range[2].min_index == 1) { + return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; + } + + /* + * PE0 and PE3 can never have the same SAS Address unless they + * are part of the same x4 wide port and we have already checked + * for this condition. */ + scic_sds_phy_get_sas_address(&ihost->phys[0].sci, &first_address); + scic_sds_phy_get_sas_address(&ihost->phys[3].sci, &second_address); + + if (sci_sas_address_compare(first_address, second_address) == 0) { + return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; + } + + /* + * PE0 and PE1 are configured into a 2x1 ports make sure that the + * SAS Address for PE0 and PE2 are different since they can not be + * part of the same port. */ + if (port_agent->phy_valid_port_range[0].min_index == 0 && + port_agent->phy_valid_port_range[1].min_index == 1) { + scic_sds_phy_get_sas_address(&ihost->phys[0].sci, &first_address); + scic_sds_phy_get_sas_address(&ihost->phys[2].sci, &second_address); + + if (sci_sas_address_compare(first_address, second_address) == 0) { + return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; + } + } + + /* + * PE2 and PE3 are configured into a 2x1 ports make sure that the + * SAS Address for PE1 and PE3 are different since they can not be + * part of the same port. */ + if (port_agent->phy_valid_port_range[2].min_index == 2 && + port_agent->phy_valid_port_range[3].min_index == 3) { + scic_sds_phy_get_sas_address(&ihost->phys[1].sci, &first_address); + scic_sds_phy_get_sas_address(&ihost->phys[3].sci, &second_address); + + if (sci_sas_address_compare(first_address, second_address) == 0) { + return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; + } + } + + return SCI_SUCCESS; +} + +/* + * ****************************************************************************** + * Manual port configuration agent routines + * ****************************************************************************** */ + +/** + * + * + * This routine will verify that all of the phys in the same port are using the + * same SAS address. + */ +static enum sci_status scic_sds_mpc_agent_validate_phy_configuration( + struct scic_sds_controller *controller, + struct scic_sds_port_configuration_agent *port_agent) +{ + struct isci_host *ihost = scic_to_ihost(controller); + u32 phy_mask; + u32 assigned_phy_mask; + struct sci_sas_address sas_address; + struct sci_sas_address phy_assigned_address; + u8 port_index; + u8 phy_index; + + assigned_phy_mask = 0; + sas_address.high = 0; + sas_address.low = 0; + + for (port_index = 0; port_index < SCI_MAX_PORTS; port_index++) { + phy_mask = controller->oem_parameters.sds1.ports[port_index].phy_mask; + + if (!phy_mask) + continue; + /* + * Make sure that one or more of the phys were not already assinged to + * a different port. */ + if ((phy_mask & ~assigned_phy_mask) == 0) { + return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; + } + + /* Find the starting phy index for this round through the loop */ + for (phy_index = 0; phy_index < SCI_MAX_PHYS; phy_index++) { + if ((phy_mask & (1 << phy_index)) == 0) + continue; + scic_sds_phy_get_sas_address(&ihost->phys[phy_index].sci, + &sas_address); + + /* + * The phy_index can be used as the starting point for the + * port range since the hardware starts all logical ports + * the same as the PE index. */ + port_agent->phy_valid_port_range[phy_index].min_index = port_index; + port_agent->phy_valid_port_range[phy_index].max_index = phy_index; + + if (phy_index != port_index) { + return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; + } + + break; + } + + /* + * See how many additional phys are being added to this logical port. + * Note: We have not moved the current phy_index so we will actually + * compare the startting phy with itself. + * This is expected and required to add the phy to the port. */ + while (phy_index < SCI_MAX_PHYS) { + if ((phy_mask & (1 << phy_index)) == 0) + continue; + scic_sds_phy_get_sas_address(&ihost->phys[phy_index].sci, + &phy_assigned_address); + + if (sci_sas_address_compare(sas_address, phy_assigned_address) != 0) { + /* + * The phy mask specified that this phy is part of the same port + * as the starting phy and it is not so fail this configuration */ + return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; + } + + port_agent->phy_valid_port_range[phy_index].min_index = port_index; + port_agent->phy_valid_port_range[phy_index].max_index = phy_index; + + scic_sds_port_add_phy(&ihost->ports[port_index].sci, + &ihost->phys[phy_index].sci); + + assigned_phy_mask |= (1 << phy_index); + } + + phy_index++; + } + + return scic_sds_port_configuration_agent_validate_ports(controller, port_agent); +} + +/** + * + * + * This timer routine is used to allow the SCI User to rediscover or change + * device objects before a new series of link up notifications because a link + * down has allowed a better port configuration. + */ +static void scic_sds_mpc_agent_timeout_handler(void *object) +{ + u8 index; + struct scic_sds_controller *scic = object; + struct isci_host *ihost = scic_to_ihost(scic); + struct scic_sds_port_configuration_agent *port_agent = &scic->port_agent; + u16 configure_phy_mask; + + port_agent->timer_pending = false; + + /* Find the mask of phys that are reported read but as yet unconfigured into a port */ + configure_phy_mask = ~port_agent->phy_configured_mask & port_agent->phy_ready_mask; + + for (index = 0; index < SCI_MAX_PHYS; index++) { + struct scic_sds_phy *sci_phy = &ihost->phys[index].sci; + + if (configure_phy_mask & (1 << index)) { + port_agent->link_up_handler(scic, port_agent, + scic_sds_phy_get_port(sci_phy), + sci_phy); + } + } +} + +/** + * + * @controller: This is the controller object that receives the link up + * notification. + * @port: This is the port object associated with the phy. If the is no + * associated port this is an NULL. + * @phy: This is the phy object which has gone ready. + * + * This method handles the manual port configuration link up notifications. + * Since all ports and phys are associate at initialization time we just turn + * around and notifiy the port object that there is a link up. If this PHY is + * not associated with a port there is no action taken. Is it possible to get a + * link up notification from a phy that has no assocoated port? + */ +static void scic_sds_mpc_agent_link_up( + struct scic_sds_controller *controller, + struct scic_sds_port_configuration_agent *port_agent, + struct scic_sds_port *port, + struct scic_sds_phy *phy) +{ + /* + * If the port has an invalid handle then the phy was not assigned to + * a port. This is because the phy was not given the same SAS Address + * as the other PHYs in the port. */ + if (port != NULL) { + port_agent->phy_ready_mask |= (1 << scic_sds_phy_get_index(phy)); + + scic_sds_port_link_up(port, phy); + + if ((port->active_phy_mask & (1 << scic_sds_phy_get_index(phy))) != 0) { + port_agent->phy_configured_mask |= (1 << scic_sds_phy_get_index(phy)); + } + } +} + +/** + * + * @controller: This is the controller object that receives the link down + * notification. + * @port: This is the port object associated with the phy. If the is no + * associated port this is an NULL. The port is an invalid + * handle only if the phy was never port of this port. This happens when + * the phy is not broadcasting the same SAS address as the other phys in the + * assigned port. + * @phy: This is the phy object which has gone link down. + * + * This function handles the manual port configuration link down notifications. + * Since all ports and phys are associated at initialization time we just turn + * around and notifiy the port object of the link down event. If this PHY is + * not associated with a port there is no action taken. Is it possible to get a + * link down notification from a phy that has no assocoated port? + */ +static void scic_sds_mpc_agent_link_down( + struct scic_sds_controller *scic, + struct scic_sds_port_configuration_agent *port_agent, + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) +{ + if (sci_port != NULL) { + /* + * If we can form a new port from the remainder of the phys + * then we want to start the timer to allow the SCI User to + * cleanup old devices and rediscover the port before + * rebuilding the port with the phys that remain in the ready + * state. + */ + port_agent->phy_ready_mask &= + ~(1 << scic_sds_phy_get_index(sci_phy)); + port_agent->phy_configured_mask &= + ~(1 << scic_sds_phy_get_index(sci_phy)); + + /* + * Check to see if there are more phys waiting to be + * configured into a port. If there are allow the SCI User + * to tear down this port, if necessary, and then reconstruct + * the port after the timeout. + */ + if ((port_agent->phy_configured_mask == 0x0000) && + (port_agent->phy_ready_mask != 0x0000) && + !port_agent->timer_pending) { + port_agent->timer_pending = true; + + isci_timer_start(port_agent->timer, + SCIC_SDS_MPC_RECONFIGURATION_TIMEOUT); + } + + scic_sds_port_link_down(sci_port, sci_phy); + } +} + +/* + * ****************************************************************************** + * Automatic port configuration agent routines + * ****************************************************************************** */ + +/** + * + * + * This routine will verify that the phys are assigned a valid SAS address for + * automatic port configuration mode. + */ +static enum sci_status scic_sds_apc_agent_validate_phy_configuration( + struct scic_sds_controller *controller, + struct scic_sds_port_configuration_agent *port_agent) +{ + u8 phy_index; + u8 port_index; + struct sci_sas_address sas_address; + struct sci_sas_address phy_assigned_address; + struct isci_host *ihost = scic_to_ihost(controller); + + phy_index = 0; + + while (phy_index < SCI_MAX_PHYS) { + port_index = phy_index; + + /* Get the assigned SAS Address for the first PHY on the controller. */ + scic_sds_phy_get_sas_address(&ihost->phys[phy_index].sci, + &sas_address); + + while (++phy_index < SCI_MAX_PHYS) { + scic_sds_phy_get_sas_address(&ihost->phys[phy_index].sci, + &phy_assigned_address); + + /* Verify each of the SAS address are all the same for every PHY */ + if (sci_sas_address_compare(sas_address, phy_assigned_address) == 0) { + port_agent->phy_valid_port_range[phy_index].min_index = port_index; + port_agent->phy_valid_port_range[phy_index].max_index = phy_index; + } else { + port_agent->phy_valid_port_range[phy_index].min_index = phy_index; + port_agent->phy_valid_port_range[phy_index].max_index = phy_index; + break; + } + } + } + + return scic_sds_port_configuration_agent_validate_ports(controller, port_agent); +} + +/** + * + * @controller: This is the controller that to which the port agent is assigned. + * @port_agent: This is the port agent that is requesting the timer start + * operation. + * @phy: This is the phy that has caused the timer operation to be scheduled. + * + * This routine will restart the automatic port configuration timeout timer for + * the next time period. This could be caused by either a link down event or a + * link up event where we can not yet tell to which port a phy belongs. + */ +static inline void scic_sds_apc_agent_start_timer( + struct scic_sds_controller *scic, + struct scic_sds_port_configuration_agent *port_agent, + struct scic_sds_phy *sci_phy, + u32 timeout) +{ + if (port_agent->timer_pending) + isci_timer_stop(port_agent->timer); + + port_agent->timer_pending = true; + + isci_timer_start(port_agent->timer, timeout); +} + +/** + * + * @controller: This is the controller object that receives the link up + * notification. + * @phy: This is the phy object which has gone link up. + * + * This method handles the automatic port configuration for link up + * notifications. + */ +static void scic_sds_apc_agent_configure_ports( + struct scic_sds_controller *controller, + struct scic_sds_port_configuration_agent *port_agent, + struct scic_sds_phy *phy, + bool start_timer) +{ + u8 port_index; + enum sci_status status; + struct scic_sds_port *port; + enum SCIC_SDS_APC_ACTIVITY apc_activity = SCIC_SDS_APC_SKIP_PHY; + struct isci_host *ihost = scic_to_ihost(controller); + + port = scic_sds_port_configuration_agent_find_port(controller, phy); + + if (port != NULL) { + if (scic_sds_port_is_valid_phy_assignment(port, phy->phy_index)) + apc_activity = SCIC_SDS_APC_ADD_PHY; + else + apc_activity = SCIC_SDS_APC_SKIP_PHY; + } else { + /* + * There is no matching Port for this PHY so lets search through the + * Ports and see if we can add the PHY to its own port or maybe start + * the timer and wait to see if a wider port can be made. + * + * Note the break when we reach the condition of the port id == phy id */ + for ( + port_index = port_agent->phy_valid_port_range[phy->phy_index].min_index; + port_index <= port_agent->phy_valid_port_range[phy->phy_index].max_index; + port_index++ + ) { + + port = &ihost->ports[port_index].sci; + + /* First we must make sure that this PHY can be added to this Port. */ + if (scic_sds_port_is_valid_phy_assignment(port, phy->phy_index)) { + /* + * Port contains a PHY with a greater PHY ID than the current + * PHY that has gone link up. This phy can not be part of any + * port so skip it and move on. */ + if (port->active_phy_mask > (1 << phy->phy_index)) { + apc_activity = SCIC_SDS_APC_SKIP_PHY; + break; + } + + /* + * We have reached the end of our Port list and have not found + * any reason why we should not either add the PHY to the port + * or wait for more phys to become active. */ + if (port->physical_port_index == phy->phy_index) { + /* + * The Port either has no active PHYs. + * Consider that if the port had any active PHYs we would have + * or active PHYs with + * a lower PHY Id than this PHY. */ + if (apc_activity != SCIC_SDS_APC_START_TIMER) { + apc_activity = SCIC_SDS_APC_ADD_PHY; + } + + break; + } + + /* + * The current Port has no active PHYs and this PHY could be part + * of this Port. Since we dont know as yet setup to start the + * timer and see if there is a better configuration. */ + if (port->active_phy_mask == 0) { + apc_activity = SCIC_SDS_APC_START_TIMER; + } + } else if (port->active_phy_mask != 0) { + /* + * The Port has an active phy and the current Phy can not + * participate in this port so skip the PHY and see if + * there is a better configuration. */ + apc_activity = SCIC_SDS_APC_SKIP_PHY; + } + } + } + + /* + * Check to see if the start timer operations should instead map to an + * add phy operation. This is caused because we have been waiting to + * add a phy to a port but could not becuase the automatic port + * configuration engine had a choice of possible ports for the phy. + * Since we have gone through a timeout we are going to restrict the + * choice to the smallest possible port. */ + if ( + (start_timer == false) + && (apc_activity == SCIC_SDS_APC_START_TIMER) + ) { + apc_activity = SCIC_SDS_APC_ADD_PHY; + } + + switch (apc_activity) { + case SCIC_SDS_APC_ADD_PHY: + status = scic_sds_port_add_phy(port, phy); + + if (status == SCI_SUCCESS) { + port_agent->phy_configured_mask |= (1 << phy->phy_index); + } + break; + + case SCIC_SDS_APC_START_TIMER: + scic_sds_apc_agent_start_timer( + controller, port_agent, phy, SCIC_SDS_APC_WAIT_LINK_UP_NOTIFICATION + ); + break; + + case SCIC_SDS_APC_SKIP_PHY: + default: + /* do nothing the PHY can not be made part of a port at this time. */ + break; + } +} + +/** + * scic_sds_apc_agent_link_up - handle apc link up events + * @scic: This is the controller object that receives the link up + * notification. + * @sci_port: This is the port object associated with the phy. If the is no + * associated port this is an NULL. + * @sci_phy: This is the phy object which has gone link up. + * + * This method handles the automatic port configuration for link up + * notifications. Is it possible to get a link down notification from a phy + * that has no assocoated port? + */ +static void scic_sds_apc_agent_link_up(struct scic_sds_controller *scic, + struct scic_sds_port_configuration_agent *port_agent, + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) +{ + u8 phy_index = sci_phy->phy_index; + + if (!sci_port) { + /* the phy is not the part of this port */ + port_agent->phy_ready_mask |= 1 << phy_index; + scic_sds_apc_agent_configure_ports(scic, port_agent, sci_phy, true); + } else { + /* the phy is already the part of the port */ + u32 port_state = sci_port->state_machine.current_state_id; + + /* if the PORT'S state is resetting then the link up is from + * port hard reset in this case, we need to tell the port + * that link up is recieved + */ + BUG_ON(port_state != SCI_BASE_PORT_STATE_RESETTING); + port_agent->phy_ready_mask |= 1 << phy_index; + scic_sds_port_link_up(sci_port, sci_phy); + } +} + +/** + * + * @controller: This is the controller object that receives the link down + * notification. + * @port: This is the port object associated with the phy. If the is no + * associated port this is an NULL. + * @phy: This is the phy object which has gone link down. + * + * This method handles the automatic port configuration link down + * notifications. not associated with a port there is no action taken. Is it + * possible to get a link down notification from a phy that has no assocoated + * port? + */ +static void scic_sds_apc_agent_link_down( + struct scic_sds_controller *controller, + struct scic_sds_port_configuration_agent *port_agent, + struct scic_sds_port *port, + struct scic_sds_phy *phy) +{ + port_agent->phy_ready_mask &= ~(1 << scic_sds_phy_get_index(phy)); + + if (port != NULL) { + if (port_agent->phy_configured_mask & (1 << phy->phy_index)) { + enum sci_status status; + + status = scic_sds_port_remove_phy(port, phy); + + if (status == SCI_SUCCESS) { + port_agent->phy_configured_mask &= ~(1 << phy->phy_index); + } + } + } +} + +/* configure the phys into ports when the timer fires */ +static void scic_sds_apc_agent_timeout_handler(void *object) +{ + u32 index; + struct scic_sds_port_configuration_agent *port_agent; + struct scic_sds_controller *scic = object; + struct isci_host *ihost = scic_to_ihost(scic); + u16 configure_phy_mask; + + port_agent = scic_sds_controller_get_port_configuration_agent(scic); + + port_agent->timer_pending = false; + + configure_phy_mask = ~port_agent->phy_configured_mask & port_agent->phy_ready_mask; + + if (!configure_phy_mask) + return; + + for (index = 0; index < SCI_MAX_PHYS; index++) { + if ((configure_phy_mask & (1 << index)) == 0) + continue; + + scic_sds_apc_agent_configure_ports(scic, port_agent, + &ihost->phys[index].sci, false); + } +} + +/* + * ****************************************************************************** + * Public port configuration agent routines + * ****************************************************************************** */ + +/** + * + * + * This method will construct the port configuration agent for operation. This + * call is universal for both manual port configuration and automatic port + * configuration modes. + */ +void scic_sds_port_configuration_agent_construct( + struct scic_sds_port_configuration_agent *port_agent) +{ + u32 index; + + port_agent->phy_configured_mask = 0x00; + port_agent->phy_ready_mask = 0x00; + + port_agent->link_up_handler = NULL; + port_agent->link_down_handler = NULL; + + port_agent->timer_pending = false; + port_agent->timer = NULL; + + for (index = 0; index < SCI_MAX_PORTS; index++) { + port_agent->phy_valid_port_range[index].min_index = 0; + port_agent->phy_valid_port_range[index].max_index = 0; + } +} + +enum sci_status scic_sds_port_configuration_agent_initialize( + struct scic_sds_controller *scic, + struct scic_sds_port_configuration_agent *port_agent) +{ + enum sci_status status = SCI_SUCCESS; + enum scic_port_configuration_mode mode; + struct isci_host *ihost = scic_to_ihost(scic); + + mode = scic->oem_parameters.sds1.controller.mode_type; + + if (mode == SCIC_PORT_MANUAL_CONFIGURATION_MODE) { + status = scic_sds_mpc_agent_validate_phy_configuration( + scic, port_agent); + + port_agent->link_up_handler = scic_sds_mpc_agent_link_up; + port_agent->link_down_handler = scic_sds_mpc_agent_link_down; + + port_agent->timer = isci_timer_create( + ihost, + scic, + scic_sds_mpc_agent_timeout_handler); + } else { + status = scic_sds_apc_agent_validate_phy_configuration( + scic, port_agent); + + port_agent->link_up_handler = scic_sds_apc_agent_link_up; + port_agent->link_down_handler = scic_sds_apc_agent_link_down; + + port_agent->timer = isci_timer_create( + ihost, + scic, + scic_sds_apc_agent_timeout_handler); + } + + /* Make sure we have actually gotten a timer */ + if ((status == SCI_SUCCESS) && (port_agent->timer == NULL)) { + dev_err(scic_to_dev(scic), + "%s: Controller 0x%p automatic port configuration " + "agent could not get timer.\n", + __func__, + scic); + + status = SCI_FAILURE; + } + + return status; +} diff --git a/drivers/scsi/isci/probe_roms.h b/drivers/scsi/isci/probe_roms.h index f4ef19ac281..7e3e6d7a0a4 100644 --- a/drivers/scsi/isci/probe_roms.h +++ b/drivers/scsi/isci/probe_roms.h @@ -60,15 +60,117 @@ #include #include "isci.h" -struct isci_orom *isci_request_oprom(struct pci_dev *pdev); +#define SCIC_SDS_PARM_NO_SPEED 0 + +/* generation 1 (i.e. 1.5 Gb/s) */ +#define SCIC_SDS_PARM_GEN1_SPEED 1 + +/* generation 2 (i.e. 3.0 Gb/s) */ +#define SCIC_SDS_PARM_GEN2_SPEED 2 + +/* generation 3 (i.e. 6.0 Gb/s) */ +#define SCIC_SDS_PARM_GEN3_SPEED 3 +#define SCIC_SDS_PARM_MAX_SPEED SCIC_SDS_PARM_GEN3_SPEED + +/* parameters that can be set by module parameters */ +struct scic_sds_user_parameters { + struct sci_phy_user_params { + /** + * This field specifies the NOTIFY (ENABLE SPIN UP) primitive + * insertion frequency for this phy index. + */ + u32 notify_enable_spin_up_insertion_frequency; + + /** + * This method specifies the number of transmitted DWORDs within which + * to transmit a single ALIGN primitive. This value applies regardless + * of what type of device is attached or connection state. A value of + * 0 indicates that no ALIGN primitives will be inserted. + */ + u16 align_insertion_frequency; + + /** + * This method specifies the number of transmitted DWORDs within which + * to transmit 2 ALIGN primitives. This applies for SAS connections + * only. A minimum value of 3 is required for this field. + */ + u16 in_connection_align_insertion_frequency; + + /** + * This field indicates the maximum speed generation to be utilized + * by phys in the supplied port. + * - A value of 1 indicates generation 1 (i.e. 1.5 Gb/s). + * - A value of 2 indicates generation 2 (i.e. 3.0 Gb/s). + * - A value of 3 indicates generation 3 (i.e. 6.0 Gb/s). + */ + u8 max_speed_generation; + + } phys[SCI_MAX_PHYS]; + + /** + * This field specifies the maximum number of direct attached devices + * that can have power supplied to them simultaneously. + */ + u8 max_number_concurrent_device_spin_up; + + /** + * This field specifies the number of seconds to allow a phy to consume + * power before yielding to another phy. + * + */ + u8 phy_spin_up_delay_interval; + + /** + * These timer values specifies how long a link will remain open with no + * activity in increments of a microsecond, it can be in increments of + * 100 microseconds if the upper most bit is set. + * + */ + u16 stp_inactivity_timeout; + u16 ssp_inactivity_timeout; + + /** + * These timer values specifies how long a link will remain open in increments + * of 100 microseconds. + * + */ + u16 stp_max_occupancy_timeout; + u16 ssp_max_occupancy_timeout; + + /** + * This timer value specifies how long a link will remain open with no + * outbound traffic in increments of a microsecond. + * + */ + u8 no_outbound_task_timeout; + +}; + +/* XXX kill this union */ +union scic_user_parameters { + /** + * This field specifies the user parameters specific to the + * Storage Controller Unit (SCU) Driver Standard (SDS) version + * 1. + */ + struct scic_sds_user_parameters sds1; +}; + +#define SCIC_SDS_PARM_PHY_MASK_MIN 0x0 +#define SCIC_SDS_PARM_PHY_MASK_MAX 0xF +#define MAX_CONCURRENT_DEVICE_SPIN_UP_COUNT 4 + +struct scic_sds_oem_params; +int scic_oem_parameters_validate(struct scic_sds_oem_params *oem); union scic_oem_parameters; -struct isci_orom; +void scic_oem_parameters_get(struct scic_sds_controller *scic, + union scic_oem_parameters *oem); -enum sci_status isci_parse_oem_parameters( - union scic_oem_parameters *oem_params, - struct isci_orom *orom, - int scu_index); +struct isci_orom; +struct isci_orom *isci_request_oprom(struct pci_dev *pdev); +enum sci_status isci_parse_oem_parameters(union scic_oem_parameters *oem, + struct isci_orom *orom, int scu_index); struct isci_orom *isci_request_firmware(struct pci_dev *pdev, const struct firmware *fw); struct isci_orom *isci_get_efi_var(struct pci_dev *pdev); @@ -153,6 +255,16 @@ struct scic_sds_oem_params { } phys[SCI_MAX_PHYS]; } __attribute__ ((packed)); +/* XXX kill this union */ +union scic_oem_parameters { + /** + * This field specifies the OEM parameters specific to the + * Storage Controller Unit (SCU) Driver Standard (SDS) version + * 1. + */ + struct scic_sds_oem_params sds1; +}; + struct isci_orom { struct sci_bios_oem_param_block_hdr hdr; struct scic_sds_oem_params ctrl[SCI_MAX_CONTROLLERS]; diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index 2baa215cb27..0bb639dfbad 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -57,8 +57,6 @@ #include "port.h" #include "remote_device.h" #include "request.h" -#include "scic_port.h" -#include "scic_sds_port.h" #include "remote_node_context.h" #include "scu_event_codes.h" #include "task.h" diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index 35231e7407b..aef258b959f 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -55,7 +55,6 @@ #include "host.h" #include "state_machine.h" -#include "scic_sds_port.h" #include "remote_device.h" #include "remote_node_context.h" #include "scu_event_codes.h" diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index 857ad067f11..48e2dac7252 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -54,7 +54,6 @@ */ #include "isci.h" -#include "scic_port.h" #include "task.h" #include "request.h" #include "sata.h" -- cgit v1.2.3-70-g09d2 From e91f41ef809a2d1b8cdba52ac380aecd706c93dd Mon Sep 17 00:00:00 2001 From: Piotr Sawicki Date: Wed, 11 May 2011 23:52:21 +0000 Subject: isci: merge port ready substates into primary state machine This conversion was complicated by the fact that the ready state exit routine took unconditional action beyond just stopping the substate machine (like in previous conversions). In order to ensure identical behaviour every state transition needs to be instrumented to catch ready-->!ready transitions and execute scic_sds_port_invalidate_dummy_remote_node() Reported-by: Christoph Hellwig Signed-off-by: Piotr Sawicki [fix ready state exit handling] Signed-off-by: Dan Williams --- drivers/scsi/isci/port.c | 409 ++++++++++++++++++++++------------------------- drivers/scsi/isci/port.h | 57 +++---- 2 files changed, 210 insertions(+), 256 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index e386066825b..2ea3d0fe091 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -61,6 +61,8 @@ #define SCIC_SDS_PORT_HARD_RESET_TIMEOUT (1000) #define SCU_DUMMY_INDEX (0xFFFF) +static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[]; + static void isci_port_change_state(struct isci_port *iport, enum isci_status status) { unsigned long flags; @@ -856,6 +858,40 @@ static void scic_sds_port_invalid_link_up(struct scic_sds_port *sci_port, } } +static bool is_port_ready_state(enum scic_sds_port_states state) +{ + switch (state) { + case SCI_BASE_PORT_STATE_READY: + case SCIC_SDS_PORT_READY_SUBSTATE_WAITING: + case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL: + case SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING: + return true; + default: + return false; + } +} + +/* flag dummy rnc hanling when exiting a ready state */ +static void port_state_machine_change(struct scic_sds_port *sci_port, + enum scic_sds_port_states state) +{ + struct sci_base_state_machine *sm = &sci_port->state_machine; + enum scic_sds_port_states old_state = sm->current_state_id; + + if (is_port_ready_state(old_state) && !is_port_ready_state(state)) + sci_port->ready_exit = true; + + sci_base_state_machine_change_state(sm, state); + sci_port->ready_exit = false; +} + +static void port_state_machine_stop(struct scic_sds_port *sci_port) +{ + sci_port->ready_exit = true; + sci_base_state_machine_stop(&sci_port->state_machine); + sci_port->ready_exit = false; +} + /** * scic_sds_port_general_link_up_handler - phy can be assigned to port? * @sci_port: scic_sds_port object for which has a phy that has gone link up. @@ -891,7 +927,7 @@ static void scic_sds_port_general_link_up_handler(struct scic_sds_port *sci_port scic_sds_port_activate_phy(sci_port, sci_phy, do_notify_user); if (sm->current_state_id == SCI_BASE_PORT_STATE_RESETTING) - sci_base_state_machine_change_state(sm, SCI_BASE_PORT_STATE_READY); + port_state_machine_change(sci_port, SCI_BASE_PORT_STATE_READY); } else scic_sds_port_invalid_link_up(sci_port, sci_phy); } @@ -1025,46 +1061,33 @@ static void scic_sds_port_timeout_handler(void *port) struct scic_sds_port *sci_port = port; u32 current_state; - current_state = sci_base_state_machine_get_state( - &sci_port->state_machine); + current_state = sci_base_state_machine_get_state(&sci_port->state_machine); if (current_state == SCI_BASE_PORT_STATE_RESETTING) { - /* - * if the port is still in the resetting state then the - * timeout fired before the reset completed. + /* if the port is still in the resetting state then the timeout + * fired before the reset completed. */ - sci_base_state_machine_change_state( - &sci_port->state_machine, - SCI_BASE_PORT_STATE_FAILED); + port_state_machine_change(sci_port, SCI_BASE_PORT_STATE_FAILED); } else if (current_state == SCI_BASE_PORT_STATE_STOPPED) { - /* - * if the port is stopped then the start request failed - * In this case stay in the stopped state. + /* if the port is stopped then the start request failed In this + * case stay in the stopped state. */ dev_err(sciport_to_dev(sci_port), "%s: SCIC Port 0x%p failed to stop before tiemout.\n", __func__, sci_port); } else if (current_state == SCI_BASE_PORT_STATE_STOPPING) { - /* - * if the port is still stopping then the stop has not - * completed - */ - isci_port_stop_complete( - scic_sds_port_get_controller(sci_port), - sci_port, - SCI_FAILURE_TIMEOUT); + /* if the port is still stopping then the stop has not completed */ + isci_port_stop_complete(sci_port->owning_controller, + sci_port, + SCI_FAILURE_TIMEOUT); } else { - /* - * The port is in the ready state and we have a timer + /* The port is in the ready state and we have a timer * reporting a timeout this should not happen. */ dev_err(sciport_to_dev(sci_port), "%s: SCIC Port 0x%p is processing a timeout operation " - "in state %d.\n", - __func__, - sci_port, - current_state); + "in state %d.\n", __func__, sci_port, current_state); } } @@ -1160,14 +1183,9 @@ static void scic_port_enable_broadcast_change_notification(struct scic_sds_port * object. This function will transition the ready substate machine to its * final state. enum sci_status SCI_SUCCESS */ -static enum sci_status scic_sds_port_ready_substate_stop_handler( - struct scic_sds_port *port) +static enum sci_status scic_sds_port_ready_substate_stop_handler(struct scic_sds_port *sci_port) { - sci_base_state_machine_change_state( - &port->state_machine, - SCI_BASE_PORT_STATE_STOPPING - ); - + port_state_machine_change(sci_port, SCI_BASE_PORT_STATE_STOPPING); return SCI_SUCCESS; } @@ -1186,48 +1204,40 @@ static enum sci_status scic_sds_port_ready_substate_complete_io_handler( return SCI_SUCCESS; } -static enum sci_status scic_sds_port_ready_substate_add_phy_handler( - struct scic_sds_port *port, - struct scic_sds_phy *phy) +static enum sci_status scic_sds_port_ready_substate_add_phy_handler(struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) { enum sci_status status; - status = scic_sds_port_set_phy(port, phy); + status = scic_sds_port_set_phy(sci_port, sci_phy); - if (status == SCI_SUCCESS) { - scic_sds_port_general_link_up_handler(port, phy, true); - - port->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; + if (status != SCI_SUCCESS) + return status; - sci_base_state_machine_change_state( - &port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING - ); - } + scic_sds_port_general_link_up_handler(sci_port, sci_phy, true); + sci_port->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; + port_state_machine_change(sci_port, SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); return status; } -static enum sci_status scic_sds_port_ready_substate_remove_phy_handler( - struct scic_sds_port *port, - struct scic_sds_phy *phy) +static enum sci_status scic_sds_port_ready_substate_remove_phy_handler(struct scic_sds_port *port, + struct scic_sds_phy *phy) { enum sci_status status; status = scic_sds_port_clear_phy(port, phy); - if (status == SCI_SUCCESS) { - scic_sds_port_deactivate_phy(port, phy, true); + if (status != SCI_SUCCESS) + return status; - port->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; + scic_sds_port_deactivate_phy(port, phy, true); - sci_base_state_machine_change_state( - &port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING - ); - } + port->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; + port_state_machine_change(port, + SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); return status; } @@ -1255,10 +1265,8 @@ static void scic_sds_port_ready_waiting_substate_link_up_handler( * it and continue. */ scic_sds_port_activate_phy(sci_port, sci_phy, true); - sci_base_state_machine_change_state( - &sci_port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL - ); + port_state_machine_change(sci_port, + SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL); } /* @@ -1317,9 +1325,8 @@ sci_status scic_sds_port_ready_operational_substate_reset_handler( port->not_ready_reason = SCIC_PORT_NOT_READY_HARD_RESET_REQUESTED; - sci_base_state_machine_change_state( - &port->state_machine, - SCI_BASE_PORT_STATE_RESETTING); + port_state_machine_change(port, + SCI_BASE_PORT_STATE_RESETTING); } } @@ -1365,8 +1372,8 @@ static void scic_sds_port_ready_operational_substate_link_down_handler( * the port to the WAITING state until such time as a phy goes * link up. */ if (sci_port->active_phy_mask == 0) - sci_base_state_machine_change_state(&sci_port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_WAITING); + port_state_machine_change(sci_port, + SCIC_SDS_PORT_READY_SUBSTATE_WAITING); } /* @@ -1406,10 +1413,8 @@ static enum sci_status scic_sds_port_ready_configuring_substate_add_phy_handler( /* * Re-enter the configuring state since this may be the last phy in * the port. */ - sci_base_state_machine_change_state( - &port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING - ); + port_state_machine_change(port, + SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); } return status; @@ -1427,17 +1432,15 @@ static enum sci_status scic_sds_port_ready_configuring_substate_remove_phy_handl status = scic_sds_port_clear_phy(port, phy); - if (status == SCI_SUCCESS) { - scic_sds_port_deactivate_phy(port, phy, true); + if (status != SCI_SUCCESS) + return status; + scic_sds_port_deactivate_phy(port, phy, true); - /* - * Re-enter the configuring state since this may be the last phy in - * the port. */ - sci_base_state_machine_change_state( - &port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING - ); - } + /* Re-enter the configuring state since this may be the last phy in + * the port + */ + port_state_machine_change(port, + SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); return status; } @@ -1460,10 +1463,8 @@ scic_sds_port_ready_configuring_substate_complete_io_handler( scic_sds_port_decrement_request_count(port); if (port->started_request_count == 0) { - sci_base_state_machine_change_state( - &port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL - ); + port_state_machine_change(port, + SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL); } return SCI_SUCCESS; @@ -1567,61 +1568,6 @@ static enum sci_status scic_sds_port_default_complete_io_handler(struct scic_sds return default_port_handler(sci_port, __func__); } -static struct scic_sds_port_state_handler scic_sds_port_ready_substate_handler_table[] = { - [SCIC_SDS_PORT_READY_SUBSTATE_WAITING] = { - .start_handler = scic_sds_port_default_start_handler, - .stop_handler = scic_sds_port_ready_substate_stop_handler, - .destruct_handler = scic_sds_port_default_destruct_handler, - .reset_handler = scic_sds_port_default_reset_handler, - .add_phy_handler = scic_sds_port_ready_substate_add_phy_handler, - .remove_phy_handler = scic_sds_port_default_remove_phy_handler, - .frame_handler = scic_sds_port_default_frame_handler, - .event_handler = scic_sds_port_default_event_handler, - .link_up_handler = scic_sds_port_ready_waiting_substate_link_up_handler, - .link_down_handler = scic_sds_port_default_link_down_handler, - .start_io_handler = scic_sds_port_ready_waiting_substate_start_io_handler, - .complete_io_handler = scic_sds_port_ready_substate_complete_io_handler, - }, - [SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL] = { - .start_handler = scic_sds_port_default_start_handler, - .stop_handler = scic_sds_port_ready_substate_stop_handler, - .destruct_handler = scic_sds_port_default_destruct_handler, - .reset_handler = scic_sds_port_ready_operational_substate_reset_handler, - .add_phy_handler = scic_sds_port_ready_substate_add_phy_handler, - .remove_phy_handler = scic_sds_port_ready_substate_remove_phy_handler, - .frame_handler = scic_sds_port_default_frame_handler, - .event_handler = scic_sds_port_default_event_handler, - .link_up_handler = scic_sds_port_ready_operational_substate_link_up_handler, - .link_down_handler = scic_sds_port_ready_operational_substate_link_down_handler, - .start_io_handler = scic_sds_port_ready_operational_substate_start_io_handler, - .complete_io_handler = scic_sds_port_ready_substate_complete_io_handler, - }, - [SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING] = { - .start_handler = scic_sds_port_default_start_handler, - .stop_handler = scic_sds_port_ready_substate_stop_handler, - .destruct_handler = scic_sds_port_default_destruct_handler, - .reset_handler = scic_sds_port_default_reset_handler, - .add_phy_handler = scic_sds_port_ready_configuring_substate_add_phy_handler, - .remove_phy_handler = scic_sds_port_ready_configuring_substate_remove_phy_handler, - .frame_handler = scic_sds_port_default_frame_handler, - .event_handler = scic_sds_port_default_event_handler, - .link_up_handler = scic_sds_port_default_link_up_handler, - .link_down_handler = scic_sds_port_default_link_down_handler, - .start_io_handler = scic_sds_port_default_start_io_handler, - .complete_io_handler = scic_sds_port_ready_configuring_substate_complete_io_handler - } -}; - -/** - * scic_sds_port_set_ready_state_handlers() - - * - * This macro sets the port ready substate handlers. - */ -#define scic_sds_port_set_ready_state_handlers(port, state_id) \ - scic_sds_port_set_state_handlers(\ - port, &scic_sds_port_ready_substate_handler_table[(state_id)] \ - ) - /* * ****************************************************************************** * * PORT STATE PRIVATE METHODS @@ -1729,7 +1675,7 @@ static void scic_sds_port_ready_substate_waiting_enter(void *object) { struct scic_sds_port *sci_port = object; - scic_sds_port_set_ready_state_handlers( + scic_sds_port_set_base_state_handlers( sci_port, SCIC_SDS_PORT_READY_SUBSTATE_WAITING ); @@ -1739,10 +1685,8 @@ static void scic_sds_port_ready_substate_waiting_enter(void *object) if (sci_port->active_phy_mask != 0) { /* At least one of the phys on the port is ready */ - sci_base_state_machine_change_state( - &sci_port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL - ); + port_state_machine_change(sci_port, + SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL); } } @@ -1763,7 +1707,7 @@ static void scic_sds_port_ready_substate_operational_enter(void *object) struct isci_host *ihost = scic_to_ihost(scic); struct isci_port *iport = sci_port_to_iport(sci_port); - scic_sds_port_set_ready_state_handlers( + scic_sds_port_set_base_state_handlers( sci_port, SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL); @@ -1788,6 +1732,31 @@ static void scic_sds_port_ready_substate_operational_enter(void *object) scic_sds_port_post_dummy_request(sci_port); } +static void scic_sds_port_invalidate_dummy_remote_node(struct scic_sds_port *sci_port) +{ + struct scic_sds_controller *scic = sci_port->owning_controller; + u8 phys_index = sci_port->physical_port_index; + union scu_remote_node_context *rnc; + u16 rni = sci_port->reserved_rni; + u32 command; + + rnc = &scic->remote_node_context_table[rni]; + + rnc->ssp.is_valid = false; + + /* ensure the preceding tc abort request has reached the + * controller and give it ample time to act before posting the rnc + * invalidate + */ + readl(&scic->smu_registers->interrupt_status); /* flush */ + udelay(10); + + command = SCU_CONTEXT_COMMAND_POST_RNC_INVALIDATE | + phys_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | rni; + + scic_sds_controller_post_request(scic, command); +} + /** * * @object: This is the object which is cast to a struct scic_sds_port object. @@ -1811,6 +1780,9 @@ static void scic_sds_port_ready_substate_operational_exit(void *object) scic_sds_port_abort_dummy_request(sci_port); isci_port_not_ready(ihost, iport); + + if (sci_port->ready_exit) + scic_sds_port_invalidate_dummy_remote_node(sci_port); } /* @@ -1833,20 +1805,18 @@ static void scic_sds_port_ready_substate_configuring_enter(void *object) struct isci_host *ihost = scic_to_ihost(scic); struct isci_port *iport = sci_port_to_iport(sci_port); - scic_sds_port_set_ready_state_handlers( + scic_sds_port_set_base_state_handlers( sci_port, SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); if (sci_port->active_phy_mask == 0) { isci_port_not_ready(ihost, iport); - sci_base_state_machine_change_state( - &sci_port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_WAITING); + port_state_machine_change(sci_port, + SCIC_SDS_PORT_READY_SUBSTATE_WAITING); } else if (sci_port->started_request_count == 0) - sci_base_state_machine_change_state( - &sci_port->ready_substate_machine, - SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL); + port_state_machine_change(sci_port, + SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL); } static void scic_sds_port_ready_substate_configuring_exit(void *object) @@ -1854,24 +1824,12 @@ static void scic_sds_port_ready_substate_configuring_exit(void *object) struct scic_sds_port *sci_port = object; scic_sds_port_suspend_port_task_scheduler(sci_port); + if (sci_port->ready_exit) + scic_sds_port_invalidate_dummy_remote_node(sci_port); } /* --------------------------------------------------------------------------- */ -static const struct sci_base_state scic_sds_port_ready_substate_table[] = { - [SCIC_SDS_PORT_READY_SUBSTATE_WAITING] = { - .enter_state = scic_sds_port_ready_substate_waiting_enter, - }, - [SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL] = { - .enter_state = scic_sds_port_ready_substate_operational_enter, - .exit_state = scic_sds_port_ready_substate_operational_exit - }, - [SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING] = { - .enter_state = scic_sds_port_ready_substate_configuring_enter, - .exit_state = scic_sds_port_ready_substate_configuring_exit - }, -}; - /** * * @port: This is the struct scic_sds_port object on which the io request count will @@ -1970,9 +1928,8 @@ scic_sds_port_stopped_state_start_handler(struct scic_sds_port *sci_port) * silicon. */ if (scic_sds_port_is_phy_mask_valid(sci_port, phy_mask) == true) { - sci_base_state_machine_change_state( - &sci_port->state_machine, - SCI_BASE_PORT_STATE_READY); + port_state_machine_change(sci_port, + SCI_BASE_PORT_STATE_READY); return SCI_SUCCESS; } else @@ -2003,10 +1960,9 @@ static enum sci_status scic_sds_port_stopped_state_stop_handler( * struct scic_sds_port can be destroyed. This function causes the port object to * transition to the SCI_BASE_PORT_STATE_FINAL. enum sci_status SCI_SUCCESS */ -static enum sci_status scic_sds_port_stopped_state_destruct_handler( - struct scic_sds_port *port) +static enum sci_status scic_sds_port_stopped_state_destruct_handler(struct scic_sds_port *port) { - sci_base_state_machine_stop(&port->state_machine); + port_state_machine_stop(port); return SCI_SUCCESS; } @@ -2087,10 +2043,9 @@ static enum sci_status scic_sds_port_stopping_state_complete_io_handler( { scic_sds_port_decrement_request_count(sci_port); - if (sci_port->started_request_count == 0) { - sci_base_state_machine_change_state(&sci_port->state_machine, - SCI_BASE_PORT_STATE_STOPPED); - } + if (sci_port->started_request_count == 0) + port_state_machine_change(sci_port, + SCI_BASE_PORT_STATE_STOPPED); return SCI_SUCCESS; } @@ -2110,10 +2065,8 @@ static enum sci_status scic_sds_port_stopping_state_complete_io_handler( static enum sci_status scic_sds_port_reset_state_stop_handler( struct scic_sds_port *port) { - sci_base_state_machine_change_state( - &port->state_machine, - SCI_BASE_PORT_STATE_STOPPING - ); + port_state_machine_change(port, + SCI_BASE_PORT_STATE_STOPPING); return SCI_SUCCESS; } @@ -2201,6 +2154,48 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .start_io_handler = scic_sds_port_default_start_io_handler, .complete_io_handler = scic_sds_port_general_complete_io_handler }, + [SCIC_SDS_PORT_READY_SUBSTATE_WAITING] = { + .start_handler = scic_sds_port_default_start_handler, + .stop_handler = scic_sds_port_ready_substate_stop_handler, + .destruct_handler = scic_sds_port_default_destruct_handler, + .reset_handler = scic_sds_port_default_reset_handler, + .add_phy_handler = scic_sds_port_ready_substate_add_phy_handler, + .remove_phy_handler = scic_sds_port_default_remove_phy_handler, + .frame_handler = scic_sds_port_default_frame_handler, + .event_handler = scic_sds_port_default_event_handler, + .link_up_handler = scic_sds_port_ready_waiting_substate_link_up_handler, + .link_down_handler = scic_sds_port_default_link_down_handler, + .start_io_handler = scic_sds_port_ready_waiting_substate_start_io_handler, + .complete_io_handler = scic_sds_port_ready_substate_complete_io_handler, + }, + [SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL] = { + .start_handler = scic_sds_port_default_start_handler, + .stop_handler = scic_sds_port_ready_substate_stop_handler, + .destruct_handler = scic_sds_port_default_destruct_handler, + .reset_handler = scic_sds_port_ready_operational_substate_reset_handler, + .add_phy_handler = scic_sds_port_ready_substate_add_phy_handler, + .remove_phy_handler = scic_sds_port_ready_substate_remove_phy_handler, + .frame_handler = scic_sds_port_default_frame_handler, + .event_handler = scic_sds_port_default_event_handler, + .link_up_handler = scic_sds_port_ready_operational_substate_link_up_handler, + .link_down_handler = scic_sds_port_ready_operational_substate_link_down_handler, + .start_io_handler = scic_sds_port_ready_operational_substate_start_io_handler, + .complete_io_handler = scic_sds_port_ready_substate_complete_io_handler, + }, + [SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING] = { + .start_handler = scic_sds_port_default_start_handler, + .stop_handler = scic_sds_port_ready_substate_stop_handler, + .destruct_handler = scic_sds_port_default_destruct_handler, + .reset_handler = scic_sds_port_default_reset_handler, + .add_phy_handler = scic_sds_port_ready_configuring_substate_add_phy_handler, + .remove_phy_handler = scic_sds_port_ready_configuring_substate_remove_phy_handler, + .frame_handler = scic_sds_port_default_frame_handler, + .event_handler = scic_sds_port_default_event_handler, + .link_up_handler = scic_sds_port_default_link_up_handler, + .link_down_handler = scic_sds_port_default_link_down_handler, + .start_io_handler = scic_sds_port_default_start_io_handler, + .complete_io_handler = scic_sds_port_ready_configuring_substate_complete_io_handler + }, [SCI_BASE_PORT_STATE_RESETTING] = { .start_handler = scic_sds_port_default_start_handler, .stop_handler = scic_sds_port_reset_state_stop_handler, @@ -2299,31 +2294,6 @@ static void scic_sds_port_post_dummy_remote_node(struct scic_sds_port *sci_port) scic_sds_controller_post_request(scic, command); } -static void scic_sds_port_invalidate_dummy_remote_node(struct scic_sds_port *sci_port) -{ - struct scic_sds_controller *scic = sci_port->owning_controller; - u8 phys_index = sci_port->physical_port_index; - union scu_remote_node_context *rnc; - u16 rni = sci_port->reserved_rni; - u32 command; - - rnc = &scic->remote_node_context_table[rni]; - - rnc->ssp.is_valid = false; - - /* ensure the preceding tc abort request has reached the - * controller and give it ample time to act before posting the rnc - * invalidate - */ - readl(&scic->smu_registers->interrupt_status); /* flush */ - udelay(10); - - command = SCU_CONTEXT_COMMAND_POST_RNC_INVALIDATE | - phys_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | rni; - - scic_sds_controller_post_request(scic, command); -} - /* * ****************************************************************************** * * PORT STATE METHODS @@ -2404,15 +2374,8 @@ static void scic_sds_port_ready_state_enter(void *object) scic_sds_port_post_dummy_remote_node(sci_port); /* Start the ready substate machine */ - sci_base_state_machine_start(&sci_port->ready_substate_machine); -} - -static void scic_sds_port_ready_state_exit(void *object) -{ - struct scic_sds_port *sci_port = object; - - sci_base_state_machine_stop(&sci_port->ready_substate_machine); - scic_sds_port_invalidate_dummy_remote_node(sci_port); + port_state_machine_change(sci_port, + SCIC_SDS_PORT_READY_SUBSTATE_WAITING); } /** @@ -2516,7 +2479,17 @@ static const struct sci_base_state scic_sds_port_state_table[] = { }, [SCI_BASE_PORT_STATE_READY] = { .enter_state = scic_sds_port_ready_state_enter, - .exit_state = scic_sds_port_ready_state_exit + }, + [SCIC_SDS_PORT_READY_SUBSTATE_WAITING] = { + .enter_state = scic_sds_port_ready_substate_waiting_enter, + }, + [SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL] = { + .enter_state = scic_sds_port_ready_substate_operational_enter, + .exit_state = scic_sds_port_ready_substate_operational_exit + }, + [SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING] = { + .enter_state = scic_sds_port_ready_substate_configuring_enter, + .exit_state = scic_sds_port_ready_substate_configuring_exit }, [SCI_BASE_PORT_STATE_RESETTING] = { .enter_state = scic_sds_port_resetting_state_enter, @@ -2537,14 +2510,10 @@ void scic_sds_port_construct(struct scic_sds_port *sci_port, u8 index, sci_base_state_machine_start(&sci_port->state_machine); - sci_base_state_machine_construct(&sci_port->ready_substate_machine, - sci_port, - scic_sds_port_ready_substate_table, - SCIC_SDS_PORT_READY_SUBSTATE_WAITING); - sci_port->logical_port_index = SCIC_SDS_DUMMY_PORT; sci_port->physical_port_index = index; sci_port->active_phy_mask = 0; + sci_port->ready_exit = false; sci_port->owning_controller = scic; diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index ea41dcead3a..e63c34d02b7 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -81,12 +81,13 @@ enum isci_status { * The core port object provides the the abstraction for an SCU port. */ struct scic_sds_port { - /** * This field contains the information for the base port state machine. */ struct sci_base_state_machine state_machine; + bool ready_exit; + /** * This field is the port index that is reported to the SCI USER. * This allows the actual hardware physical port to change without @@ -150,11 +151,6 @@ struct scic_sds_port { */ struct scic_sds_port_state_handler *state_handlers; - /** - * This field is the ready substate machine for the port. - */ - struct sci_base_state_machine ready_substate_machine; - /* / Memory mapped hardware register space */ /** @@ -175,7 +171,6 @@ struct scic_sds_port { * This field is the VIIT register space for ths port object. */ struct scu_viit_entry __iomem *viit_registers; - }; @@ -228,35 +223,6 @@ struct scic_port_properties { u32 phy_mask; }; -/** - * enum SCIC_SDS_PORT_READY_SUBSTATES - - * - * This enumeration depicts all of the states for the core port ready substate - * machine. - */ -enum scic_sds_port_ready_substates { - /** - * The substate where the port is started and ready but has no - * active phys. - */ - SCIC_SDS_PORT_READY_SUBSTATE_WAITING, - - /** - * The substate where the port is started and ready and there is - * at least one phy operational. - */ - SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL, - - /** - * The substate where the port is started and there was an - * add/remove phy event. This state is only used in Automatic - * Port Configuration Mode (APC) - */ - SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING, - - SCIC_SDS_PORT_READY_MAX_SUBSTATES -}; - /** * enum scic_sds_port_states - This enumeration depicts all the states for the * common port state machine. @@ -286,6 +252,25 @@ enum scic_sds_port_states { */ SCI_BASE_PORT_STATE_READY, + /** + * The substate where the port is started and ready but has no + * active phys. + */ + SCIC_SDS_PORT_READY_SUBSTATE_WAITING, + + /** + * The substate where the port is started and ready and there is + * at least one phy operational. + */ + SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL, + + /** + * The substate where the port is started and there was an + * add/remove phy event. This state is only used in Automatic + * Port Configuration Mode (APC) + */ + SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING, + /** * This state indicates the port is in the process of performing a hard * reset. Thus, the user is unable to perform IO operations on this -- cgit v1.2.3-70-g09d2 From d76f71d988ef48384593ad97ebc762d9257d96a8 Mon Sep 17 00:00:00 2001 From: Piotr Sawicki Date: Wed, 11 May 2011 23:52:26 +0000 Subject: isci: remove port start handler remove the handler from the port state handler table and implement the logic directly in scic_sds_port_start(). Signed-off-by: Piotr Sawicki [remove a level of indirection] Signed-off-by: Dan Williams --- drivers/scsi/isci/host.c | 2 +- drivers/scsi/isci/port.c | 180 ++++++++++++++++++++--------------------------- drivers/scsi/isci/port.h | 8 +-- 3 files changed, 80 insertions(+), 110 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index 2ef1c592a16..7abfb663ca9 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -1108,7 +1108,7 @@ static enum sci_status scic_controller_start(struct scic_sds_controller *scic, for (index = 0; index < scic->logical_port_entries; index++) { struct scic_sds_port *sci_port = &ihost->ports[index].sci; - result = sci_port->state_handlers->start_handler(sci_port); + result = scic_sds_port_start(sci_port); if (result) return result; } diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 2ea3d0fe091..64559e8e568 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -1479,12 +1479,6 @@ static enum sci_status default_port_handler(struct scic_sds_port *sci_port, return SCI_FAILURE_INVALID_STATE; } -static enum sci_status -scic_sds_port_default_start_handler(struct scic_sds_port *sci_port) -{ - return default_port_handler(sci_port, __func__); -} - static enum sci_status scic_sds_port_default_stop_handler(struct scic_sds_port *sci_port) { @@ -1853,95 +1847,6 @@ static enum sci_status scic_sds_port_general_complete_io_handler( return SCI_SUCCESS; } -/** - * scic_sds_port_stopped_state_start_handler() - stop a port from "started" - * - * @port: This is the struct scic_sds_port object which is cast into a - * struct scic_sds_port object. - * - * This function takes the struct scic_sds_port from a stopped state and - * attempts to start it. To start a port it must have no assiged devices and - * it must have at least one phy assigned to it. If those conditions are - * met then the port can transition to the ready state. - * enum sci_status - * SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION - * This struct scic_sds_port object could not be started because the port - * configuration is not valid. - * SCI_SUCCESS - * the start request is successful and the struct scic_sds_port object - * has transitioned to the SCI_BASE_PORT_STATE_READY. - */ -static enum sci_status -scic_sds_port_stopped_state_start_handler(struct scic_sds_port *sci_port) -{ - struct scic_sds_controller *scic = sci_port->owning_controller; - struct isci_host *ihost = scic_to_ihost(scic); - enum sci_status status = SCI_SUCCESS; - u32 phy_mask; - - if (sci_port->assigned_device_count > 0) { - /* - * @todo This is a start failure operation because - * there are still devices assigned to this port. - * There must be no devices assigned to a port on a - * start operation. - */ - return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; - } - - sci_port->timer_handle = - isci_timer_create(ihost, - sci_port, - scic_sds_port_timeout_handler); - - if (!sci_port->timer_handle) - return SCI_FAILURE_INSUFFICIENT_RESOURCES; - - if (sci_port->reserved_rni == SCU_DUMMY_INDEX) { - u16 rni = scic_sds_remote_node_table_allocate_remote_node( - &scic->available_remote_nodes, 1); - - if (rni != SCU_DUMMY_INDEX) - scic_sds_port_construct_dummy_rnc(sci_port, rni); - else - status = SCI_FAILURE_INSUFFICIENT_RESOURCES; - sci_port->reserved_rni = rni; - } - - if (sci_port->reserved_tci == SCU_DUMMY_INDEX) { - /* Allocate a TCI and remove the sequence nibble */ - u16 tci = scic_controller_allocate_io_tag(scic); - - if (tci != SCU_DUMMY_INDEX) - scic_sds_port_construct_dummy_task(sci_port, tci); - else - status = SCI_FAILURE_INSUFFICIENT_RESOURCES; - sci_port->reserved_tci = tci; - } - - if (status == SCI_SUCCESS) { - phy_mask = scic_sds_port_get_phys(sci_port); - - /* - * There are one or more phys assigned to this port. Make sure - * the port's phy mask is in fact legal and supported by the - * silicon. - */ - if (scic_sds_port_is_phy_mask_valid(sci_port, phy_mask) == true) { - port_state_machine_change(sci_port, - SCI_BASE_PORT_STATE_READY); - - return SCI_SUCCESS; - } else - status = SCI_FAILURE; - } - - if (status != SCI_SUCCESS) - scic_sds_port_destroy_dummy_resources(sci_port); - - return status; -} - /* * This method takes the struct scic_sds_port that is in a stopped state and handles a * stop request. This function takes no action. enum sci_status SCI_SUCCESS the @@ -2111,9 +2016,85 @@ static void scic_sds_port_reset_state_link_down_handler( scic_sds_port_deactivate_phy(port, phy, false); } +enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port) +{ + struct scic_sds_controller *scic = sci_port->owning_controller; + struct isci_host *ihost = scic_to_ihost(scic); + enum sci_status status = SCI_SUCCESS; + enum scic_sds_port_states state; + u32 phy_mask; + + state = sci_port->state_machine.current_state_id; + if (state != SCI_BASE_PORT_STATE_STOPPED) { + dev_warn(sciport_to_dev(sci_port), + "%s: in wrong state: %d\n", __func__, state); + return SCI_FAILURE_INVALID_STATE; + } + + if (sci_port->assigned_device_count > 0) { + /* TODO This is a start failure operation because + * there are still devices assigned to this port. + * There must be no devices assigned to a port on a + * start operation. + */ + return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; + } + + sci_port->timer_handle = + isci_timer_create(ihost, + sci_port, + scic_sds_port_timeout_handler); + + if (!sci_port->timer_handle) + return SCI_FAILURE_INSUFFICIENT_RESOURCES; + + if (sci_port->reserved_rni == SCU_DUMMY_INDEX) { + u16 rni = scic_sds_remote_node_table_allocate_remote_node( + &scic->available_remote_nodes, 1); + + if (rni != SCU_DUMMY_INDEX) + scic_sds_port_construct_dummy_rnc(sci_port, rni); + else + status = SCI_FAILURE_INSUFFICIENT_RESOURCES; + sci_port->reserved_rni = rni; + } + + if (sci_port->reserved_tci == SCU_DUMMY_INDEX) { + /* Allocate a TCI and remove the sequence nibble */ + u16 tci = scic_controller_allocate_io_tag(scic); + + if (tci != SCU_DUMMY_INDEX) + scic_sds_port_construct_dummy_task(sci_port, tci); + else + status = SCI_FAILURE_INSUFFICIENT_RESOURCES; + sci_port->reserved_tci = tci; + } + + if (status == SCI_SUCCESS) { + phy_mask = scic_sds_port_get_phys(sci_port); + + /* + * There are one or more phys assigned to this port. Make sure + * the port's phy mask is in fact legal and supported by the + * silicon. + */ + if (scic_sds_port_is_phy_mask_valid(sci_port, phy_mask) == true) { + port_state_machine_change(sci_port, + SCI_BASE_PORT_STATE_READY); + + return SCI_SUCCESS; + } + status = SCI_FAILURE; + } + + if (status != SCI_SUCCESS) + scic_sds_port_destroy_dummy_resources(sci_port); + + return status; +} + static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = { [SCI_BASE_PORT_STATE_STOPPED] = { - .start_handler = scic_sds_port_stopped_state_start_handler, .stop_handler = scic_sds_port_stopped_state_stop_handler, .destruct_handler = scic_sds_port_stopped_state_destruct_handler, .reset_handler = scic_sds_port_default_reset_handler, @@ -2127,7 +2108,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_default_complete_io_handler }, [SCI_BASE_PORT_STATE_STOPPING] = { - .start_handler = scic_sds_port_default_start_handler, .stop_handler = scic_sds_port_default_stop_handler, .destruct_handler = scic_sds_port_default_destruct_handler, .reset_handler = scic_sds_port_default_reset_handler, @@ -2141,7 +2121,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_stopping_state_complete_io_handler }, [SCI_BASE_PORT_STATE_READY] = { - .start_handler = scic_sds_port_default_start_handler, .stop_handler = scic_sds_port_default_stop_handler, .destruct_handler = scic_sds_port_default_destruct_handler, .reset_handler = scic_sds_port_default_reset_handler, @@ -2155,7 +2134,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_general_complete_io_handler }, [SCIC_SDS_PORT_READY_SUBSTATE_WAITING] = { - .start_handler = scic_sds_port_default_start_handler, .stop_handler = scic_sds_port_ready_substate_stop_handler, .destruct_handler = scic_sds_port_default_destruct_handler, .reset_handler = scic_sds_port_default_reset_handler, @@ -2169,7 +2147,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_ready_substate_complete_io_handler, }, [SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL] = { - .start_handler = scic_sds_port_default_start_handler, .stop_handler = scic_sds_port_ready_substate_stop_handler, .destruct_handler = scic_sds_port_default_destruct_handler, .reset_handler = scic_sds_port_ready_operational_substate_reset_handler, @@ -2183,7 +2160,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_ready_substate_complete_io_handler, }, [SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING] = { - .start_handler = scic_sds_port_default_start_handler, .stop_handler = scic_sds_port_ready_substate_stop_handler, .destruct_handler = scic_sds_port_default_destruct_handler, .reset_handler = scic_sds_port_default_reset_handler, @@ -2197,7 +2173,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_ready_configuring_substate_complete_io_handler }, [SCI_BASE_PORT_STATE_RESETTING] = { - .start_handler = scic_sds_port_default_start_handler, .stop_handler = scic_sds_port_reset_state_stop_handler, .destruct_handler = scic_sds_port_default_destruct_handler, .reset_handler = scic_sds_port_default_reset_handler, @@ -2211,7 +2186,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_general_complete_io_handler }, [SCI_BASE_PORT_STATE_FAILED] = { - .start_handler = scic_sds_port_default_start_handler, .stop_handler = scic_sds_port_default_stop_handler, .destruct_handler = scic_sds_port_default_destruct_handler, .reset_handler = scic_sds_port_default_reset_handler, diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index e63c34d02b7..2ad205100f2 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -312,12 +312,6 @@ typedef enum sci_status (*scic_sds_port_io_request_handler_t)(struct scic_sds_po struct scic_sds_request *); struct scic_sds_port_state_handler { - /** - * The start_handler specifies the method invoked when a user - * attempts to start a port. - */ - scic_sds_port_handler_t start_handler; - /** * The stop_handler specifies the method invoked when a user * attempts to stop a port. @@ -417,6 +411,8 @@ enum sci_status scic_sds_port_initialize( void __iomem *port_configuration_regsiter, void __iomem *viit_registers); +enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port); + enum sci_status scic_sds_port_add_phy( struct scic_sds_port *sci_port, struct scic_sds_phy *sci_phy); -- cgit v1.2.3-70-g09d2 From 8bc80d303063d9540493be623df1c9a8dee9ccb8 Mon Sep 17 00:00:00 2001 From: Piotr Sawicki Date: Wed, 11 May 2011 23:52:31 +0000 Subject: isci: unify port stop handlers Implement the stop handlers directly in scic_sds_port_stop() Reported-by: Christoph Hellwig Signed-off-by: Piotr Sawicki Signed-off-by: Dan Williams --- drivers/scsi/isci/host.c | 4 +-- drivers/scsi/isci/port.c | 75 ++++++++++++++---------------------------------- drivers/scsi/isci/port.h | 7 +---- 3 files changed, 24 insertions(+), 62 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index 7abfb663ca9..a942384f279 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -1591,10 +1591,8 @@ static enum sci_status scic_sds_controller_stop_ports(struct scic_sds_controller for (index = 0; index < scic->logical_port_entries; index++) { struct scic_sds_port *sci_port = &ihost->ports[index].sci; - scic_sds_port_handler_t stop; - stop = sci_port->state_handlers->stop_handler; - port_status = stop(sci_port); + port_status = scic_sds_port_stop(sci_port); if ((port_status != SCI_SUCCESS) && (port_status != SCI_FAILURE_INVALID_STATE)) { diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 64559e8e568..62e9785acfb 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -1178,17 +1178,6 @@ static void scic_port_enable_broadcast_change_notification(struct scic_sds_port * * READY SUBSTATE HANDLERS * **************************************************************************** */ -/* - * This method is the general ready state stop handler for the struct scic_sds_port - * object. This function will transition the ready substate machine to its - * final state. enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_port_ready_substate_stop_handler(struct scic_sds_port *sci_port) -{ - port_state_machine_change(sci_port, SCI_BASE_PORT_STATE_STOPPING); - return SCI_SUCCESS; -} - /* * This method is the general ready substate complete io handler for the * struct scic_sds_port object. This function decrments the outstanding request count @@ -1479,12 +1468,6 @@ static enum sci_status default_port_handler(struct scic_sds_port *sci_port, return SCI_FAILURE_INVALID_STATE; } -static enum sci_status -scic_sds_port_default_stop_handler(struct scic_sds_port *sci_port) -{ - return default_port_handler(sci_port, __func__); -} - static enum sci_status scic_sds_port_default_destruct_handler(struct scic_sds_port *sci_port) { @@ -1847,18 +1830,6 @@ static enum sci_status scic_sds_port_general_complete_io_handler( return SCI_SUCCESS; } -/* - * This method takes the struct scic_sds_port that is in a stopped state and handles a - * stop request. This function takes no action. enum sci_status SCI_SUCCESS the - * stop request is successful as the struct scic_sds_port object is already stopped. - */ -static enum sci_status scic_sds_port_stopped_state_stop_handler( - struct scic_sds_port *port) -{ - /* We are already stopped so there is nothing to do here */ - return SCI_SUCCESS; -} - /* * This method takes the struct scic_sds_port that is in a stopped state and handles * the destruct request. The stopped state is the only state in which the @@ -1960,22 +1931,6 @@ static enum sci_status scic_sds_port_stopping_state_complete_io_handler( * * RESETTING STATE HANDLERS * **************************************************************************** */ -/** - * - * @port: This is the port object which is being requested to stop. - * - * This method will stop a failed port. This causes a transition to the - * stopping state. enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_port_reset_state_stop_handler( - struct scic_sds_port *port) -{ - port_state_machine_change(port, - SCI_BASE_PORT_STATE_STOPPING); - - return SCI_SUCCESS; -} - /* * This method will transition a failed port to its ready state. The port * failed because a hard reset request timed out but at some time later one or @@ -2093,9 +2048,30 @@ enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port) return status; } +enum sci_status scic_sds_port_stop(struct scic_sds_port *sci_port) +{ + enum scic_sds_port_states state; + + state = sci_port->state_machine.current_state_id; + switch (state) { + case SCI_BASE_PORT_STATE_STOPPED: + return SCI_SUCCESS; + case SCIC_SDS_PORT_READY_SUBSTATE_WAITING: + case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL: + case SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING: + case SCI_BASE_PORT_STATE_RESETTING: + port_state_machine_change(sci_port, + SCI_BASE_PORT_STATE_STOPPING); + return SCI_SUCCESS; + default: + dev_warn(sciport_to_dev(sci_port), + "%s: in wrong state: %d\n", __func__, state); + return SCI_FAILURE_INVALID_STATE; + } +} + static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = { [SCI_BASE_PORT_STATE_STOPPED] = { - .stop_handler = scic_sds_port_stopped_state_stop_handler, .destruct_handler = scic_sds_port_stopped_state_destruct_handler, .reset_handler = scic_sds_port_default_reset_handler, .add_phy_handler = scic_sds_port_stopped_state_add_phy_handler, @@ -2108,7 +2084,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_default_complete_io_handler }, [SCI_BASE_PORT_STATE_STOPPING] = { - .stop_handler = scic_sds_port_default_stop_handler, .destruct_handler = scic_sds_port_default_destruct_handler, .reset_handler = scic_sds_port_default_reset_handler, .add_phy_handler = scic_sds_port_default_add_phy_handler, @@ -2121,7 +2096,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_stopping_state_complete_io_handler }, [SCI_BASE_PORT_STATE_READY] = { - .stop_handler = scic_sds_port_default_stop_handler, .destruct_handler = scic_sds_port_default_destruct_handler, .reset_handler = scic_sds_port_default_reset_handler, .add_phy_handler = scic_sds_port_default_add_phy_handler, @@ -2134,7 +2108,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_general_complete_io_handler }, [SCIC_SDS_PORT_READY_SUBSTATE_WAITING] = { - .stop_handler = scic_sds_port_ready_substate_stop_handler, .destruct_handler = scic_sds_port_default_destruct_handler, .reset_handler = scic_sds_port_default_reset_handler, .add_phy_handler = scic_sds_port_ready_substate_add_phy_handler, @@ -2147,7 +2120,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_ready_substate_complete_io_handler, }, [SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL] = { - .stop_handler = scic_sds_port_ready_substate_stop_handler, .destruct_handler = scic_sds_port_default_destruct_handler, .reset_handler = scic_sds_port_ready_operational_substate_reset_handler, .add_phy_handler = scic_sds_port_ready_substate_add_phy_handler, @@ -2160,7 +2132,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_ready_substate_complete_io_handler, }, [SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING] = { - .stop_handler = scic_sds_port_ready_substate_stop_handler, .destruct_handler = scic_sds_port_default_destruct_handler, .reset_handler = scic_sds_port_default_reset_handler, .add_phy_handler = scic_sds_port_ready_configuring_substate_add_phy_handler, @@ -2173,7 +2144,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_ready_configuring_substate_complete_io_handler }, [SCI_BASE_PORT_STATE_RESETTING] = { - .stop_handler = scic_sds_port_reset_state_stop_handler, .destruct_handler = scic_sds_port_default_destruct_handler, .reset_handler = scic_sds_port_default_reset_handler, .add_phy_handler = scic_sds_port_default_add_phy_handler, @@ -2186,7 +2156,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_general_complete_io_handler }, [SCI_BASE_PORT_STATE_FAILED] = { - .stop_handler = scic_sds_port_default_stop_handler, .destruct_handler = scic_sds_port_default_destruct_handler, .reset_handler = scic_sds_port_default_reset_handler, .add_phy_handler = scic_sds_port_default_add_phy_handler, diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index 2ad205100f2..843eb62a309 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -312,12 +312,6 @@ typedef enum sci_status (*scic_sds_port_io_request_handler_t)(struct scic_sds_po struct scic_sds_request *); struct scic_sds_port_state_handler { - /** - * The stop_handler specifies the method invoked when a user - * attempts to stop a port. - */ - scic_sds_port_handler_t stop_handler; - /** * The destruct_handler specifies the method invoked when attempting to * destruct a port. @@ -412,6 +406,7 @@ enum sci_status scic_sds_port_initialize( void __iomem *viit_registers); enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port); +enum sci_status scic_sds_port_stop(struct scic_sds_port *sci_port); enum sci_status scic_sds_port_add_phy( struct scic_sds_port *sci_port, -- cgit v1.2.3-70-g09d2 From e6ec5afde9794f50e60788bd10760fcd0d609252 Mon Sep 17 00:00:00 2001 From: Piotr Sawicki Date: Wed, 11 May 2011 23:52:37 +0000 Subject: isci: remove port destruct handler The handler was never used. Signed-off-by: Piotr Sawicki Signed-off-by: Dan Williams --- drivers/scsi/isci/port.c | 34 ---------------------------------- drivers/scsi/isci/port.h | 6 ------ 2 files changed, 40 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 62e9785acfb..1a058a27ebc 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -885,13 +885,6 @@ static void port_state_machine_change(struct scic_sds_port *sci_port, sci_port->ready_exit = false; } -static void port_state_machine_stop(struct scic_sds_port *sci_port) -{ - sci_port->ready_exit = true; - sci_base_state_machine_stop(&sci_port->state_machine); - sci_port->ready_exit = false; -} - /** * scic_sds_port_general_link_up_handler - phy can be assigned to port? * @sci_port: scic_sds_port object for which has a phy that has gone link up. @@ -1468,12 +1461,6 @@ static enum sci_status default_port_handler(struct scic_sds_port *sci_port, return SCI_FAILURE_INVALID_STATE; } -static enum sci_status -scic_sds_port_default_destruct_handler(struct scic_sds_port *sci_port) -{ - return default_port_handler(sci_port, __func__); -} - static enum sci_status scic_sds_port_default_reset_handler(struct scic_sds_port *sci_port, u32 timeout) @@ -1830,19 +1817,6 @@ static enum sci_status scic_sds_port_general_complete_io_handler( return SCI_SUCCESS; } -/* - * This method takes the struct scic_sds_port that is in a stopped state and handles - * the destruct request. The stopped state is the only state in which the - * struct scic_sds_port can be destroyed. This function causes the port object to - * transition to the SCI_BASE_PORT_STATE_FINAL. enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_port_stopped_state_destruct_handler(struct scic_sds_port *port) -{ - port_state_machine_stop(port); - - return SCI_SUCCESS; -} - /* * This method takes the struct scic_sds_port that is in a stopped state and handles * the add phy request. In MPC mode the only time a phy can be added to a port @@ -2072,7 +2046,6 @@ enum sci_status scic_sds_port_stop(struct scic_sds_port *sci_port) static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = { [SCI_BASE_PORT_STATE_STOPPED] = { - .destruct_handler = scic_sds_port_stopped_state_destruct_handler, .reset_handler = scic_sds_port_default_reset_handler, .add_phy_handler = scic_sds_port_stopped_state_add_phy_handler, .remove_phy_handler = scic_sds_port_stopped_state_remove_phy_handler, @@ -2084,7 +2057,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_default_complete_io_handler }, [SCI_BASE_PORT_STATE_STOPPING] = { - .destruct_handler = scic_sds_port_default_destruct_handler, .reset_handler = scic_sds_port_default_reset_handler, .add_phy_handler = scic_sds_port_default_add_phy_handler, .remove_phy_handler = scic_sds_port_default_remove_phy_handler, @@ -2096,7 +2068,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_stopping_state_complete_io_handler }, [SCI_BASE_PORT_STATE_READY] = { - .destruct_handler = scic_sds_port_default_destruct_handler, .reset_handler = scic_sds_port_default_reset_handler, .add_phy_handler = scic_sds_port_default_add_phy_handler, .remove_phy_handler = scic_sds_port_default_remove_phy_handler, @@ -2108,7 +2079,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_general_complete_io_handler }, [SCIC_SDS_PORT_READY_SUBSTATE_WAITING] = { - .destruct_handler = scic_sds_port_default_destruct_handler, .reset_handler = scic_sds_port_default_reset_handler, .add_phy_handler = scic_sds_port_ready_substate_add_phy_handler, .remove_phy_handler = scic_sds_port_default_remove_phy_handler, @@ -2120,7 +2090,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_ready_substate_complete_io_handler, }, [SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL] = { - .destruct_handler = scic_sds_port_default_destruct_handler, .reset_handler = scic_sds_port_ready_operational_substate_reset_handler, .add_phy_handler = scic_sds_port_ready_substate_add_phy_handler, .remove_phy_handler = scic_sds_port_ready_substate_remove_phy_handler, @@ -2132,7 +2101,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_ready_substate_complete_io_handler, }, [SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING] = { - .destruct_handler = scic_sds_port_default_destruct_handler, .reset_handler = scic_sds_port_default_reset_handler, .add_phy_handler = scic_sds_port_ready_configuring_substate_add_phy_handler, .remove_phy_handler = scic_sds_port_ready_configuring_substate_remove_phy_handler, @@ -2144,7 +2112,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_ready_configuring_substate_complete_io_handler }, [SCI_BASE_PORT_STATE_RESETTING] = { - .destruct_handler = scic_sds_port_default_destruct_handler, .reset_handler = scic_sds_port_default_reset_handler, .add_phy_handler = scic_sds_port_default_add_phy_handler, .remove_phy_handler = scic_sds_port_default_remove_phy_handler, @@ -2156,7 +2123,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_general_complete_io_handler }, [SCI_BASE_PORT_STATE_FAILED] = { - .destruct_handler = scic_sds_port_default_destruct_handler, .reset_handler = scic_sds_port_default_reset_handler, .add_phy_handler = scic_sds_port_default_add_phy_handler, .remove_phy_handler = scic_sds_port_default_remove_phy_handler, diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index 843eb62a309..70163710988 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -312,12 +312,6 @@ typedef enum sci_status (*scic_sds_port_io_request_handler_t)(struct scic_sds_po struct scic_sds_request *); struct scic_sds_port_state_handler { - /** - * The destruct_handler specifies the method invoked when attempting to - * destruct a port. - */ - scic_sds_port_handler_t destruct_handler; - /** * The reset_handler specifies the method invoked when a user * attempts to hard reset a port. -- cgit v1.2.3-70-g09d2 From bd6713b416bbfc7d7180114f7cc543b152cc1725 Mon Sep 17 00:00:00 2001 From: Piotr Sawicki Date: Thu, 12 May 2011 19:10:03 +0000 Subject: isci: unify port reset, add_phy, and remove_phy handlers Unify the implementations and remove the state handlers. Reported-by: Christoph Hellwig Signed-off-by: Piotr Sawicki Signed-off-by: Dan Williams --- drivers/scsi/isci/port.c | 471 ++++++++++++++++------------------------------- drivers/scsi/isci/port.h | 19 -- 2 files changed, 163 insertions(+), 327 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 1a058a27ebc..5501e14c8d9 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -531,40 +531,6 @@ static enum sci_status scic_sds_port_clear_phy( return SCI_FAILURE; } -/** - * scic_sds_port_add_phy() - - * @sci_port: This parameter specifies the port in which the phy will be added. - * @sci_phy: This parameter is the phy which is to be added to the port. - * - * This method will add a PHY to the selected port. This method returns an - * enum sci_status. SCI_SUCCESS the phy has been added to the port. Any other status - * is failre to add the phy to the port. - */ -enum sci_status scic_sds_port_add_phy( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - return sci_port->state_handlers->add_phy_handler( - sci_port, sci_phy); -} - - -/** - * scic_sds_port_remove_phy() - - * @sci_port: This parameter specifies the port in which the phy will be added. - * @sci_phy: This parameter is the phy which is to be added to the port. - * - * This method will remove the PHY from the selected PORT. This method returns - * an enum sci_status. SCI_SUCCESS the phy has been removed from the port. Any other - * status is failre to add the phy to the port. - */ -enum sci_status scic_sds_port_remove_phy( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - return sci_port->state_handlers->remove_phy_handler( - sci_port, sci_phy); -} /** * This method requests the SAS address for the supplied SAS port from the SCI @@ -745,23 +711,6 @@ enum sci_status scic_sds_port_initialize( return SCI_SUCCESS; } -/** - * scic_port_hard_reset() - perform port hard reset - * @port: a handle corresponding to the SAS port to be hard reset. - * @reset_timeout: This parameter specifies the number of milliseconds in which - * the port reset operation should complete. - * - * The SCI User callback in scic_user_callbacks_t will only be called once for - * each phy in the SAS Port at completion of the hard reset sequence. Return a - * status indicating whether the hard reset started successfully. SCI_SUCCESS - * This value is returned if the hard reset operation started successfully. - */ -static enum sci_status scic_port_hard_reset(struct scic_sds_port *port, - u32 reset_timeout) -{ - return port->state_handlers->reset_handler( - port, reset_timeout); -} /** * This method assigns the direct attached device ID for this port. @@ -1186,48 +1135,6 @@ static enum sci_status scic_sds_port_ready_substate_complete_io_handler( return SCI_SUCCESS; } -static enum sci_status scic_sds_port_ready_substate_add_phy_handler(struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - enum sci_status status; - - status = scic_sds_port_set_phy(sci_port, sci_phy); - - if (status != SCI_SUCCESS) - return status; - - scic_sds_port_general_link_up_handler(sci_port, sci_phy, true); - sci_port->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; - port_state_machine_change(sci_port, SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); - - return status; -} - - -static enum sci_status scic_sds_port_ready_substate_remove_phy_handler(struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - enum sci_status status; - - status = scic_sds_port_clear_phy(port, phy); - - if (status != SCI_SUCCESS) - return status; - - scic_sds_port_deactivate_phy(port, phy, true); - - port->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; - - port_state_machine_change(port, - SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); - return status; -} - -/* - * **************************************************************************** - * * READY SUBSTATE WAITING HANDLERS - * **************************************************************************** */ - /** * * @sci_port: This is the struct scic_sds_port object that which has a phy that has @@ -1264,57 +1171,6 @@ static enum sci_status scic_sds_port_ready_waiting_substate_start_io_handler( return SCI_FAILURE_INVALID_STATE; } -/* - * **************************************************************************** - * * READY SUBSTATE OPERATIONAL HANDLERS - * **************************************************************************** */ - -/* - * This method will casue the port to reset. enum sci_status SCI_SUCCESS - */ -static enum -sci_status scic_sds_port_ready_operational_substate_reset_handler( - struct scic_sds_port *port, - u32 timeout) -{ - enum sci_status status = SCI_FAILURE_INVALID_PHY; - u32 phy_index; - struct scic_sds_phy *selected_phy = NULL; - - - /* Select a phy on which we can send the hard reset request. */ - for (phy_index = 0; - (phy_index < SCI_MAX_PHYS) && (selected_phy == NULL); - phy_index++) { - selected_phy = port->phy_table[phy_index]; - - if ((selected_phy != NULL) && - !scic_sds_port_active_phy(port, selected_phy)) { - /* - * We found a phy but it is not ready select - * different phy - */ - selected_phy = NULL; - } - } - - /* If we have a phy then go ahead and start the reset procedure */ - if (selected_phy != NULL) { - status = scic_sds_phy_reset(selected_phy); - - if (status == SCI_SUCCESS) { - isci_timer_start(port->timer_handle, timeout); - port->not_ready_reason = - SCIC_PORT_NOT_READY_HARD_RESET_REQUESTED; - - port_state_machine_change(port, - SCI_BASE_PORT_STATE_RESETTING); - } - } - - return status; -} - /** * scic_sds_port_ready_operational_substate_link_up_handler() - * @sci_port: This is the struct scic_sds_port object that which has a phy that has @@ -1372,61 +1228,6 @@ static enum sci_status scic_sds_port_ready_operational_substate_start_io_handler return SCI_SUCCESS; } -/* - * **************************************************************************** - * * READY SUBSTATE OPERATIONAL HANDLERS - * **************************************************************************** */ - -/* - * This is the default method for a port add phy request. It will report a - * warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE - */ -static enum sci_status scic_sds_port_ready_configuring_substate_add_phy_handler( - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - enum sci_status status; - - status = scic_sds_port_set_phy(port, phy); - - if (status == SCI_SUCCESS) { - scic_sds_port_general_link_up_handler(port, phy, true); - - /* - * Re-enter the configuring state since this may be the last phy in - * the port. */ - port_state_machine_change(port, - SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); - } - - return status; -} - -/* - * This is the default method for a port remove phy request. It will report a - * warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE - */ -static enum sci_status scic_sds_port_ready_configuring_substate_remove_phy_handler( - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - enum sci_status status; - - status = scic_sds_port_clear_phy(port, phy); - - if (status != SCI_SUCCESS) - return status; - scic_sds_port_deactivate_phy(port, phy, true); - - /* Re-enter the configuring state since this may be the last phy in - * the port - */ - port_state_machine_change(port, - SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); - - return status; -} - /** * scic_sds_port_ready_configuring_substate_complete_io_handler() - * @port: This is the port that is being requested to complete the io request. @@ -1461,27 +1262,6 @@ static enum sci_status default_port_handler(struct scic_sds_port *sci_port, return SCI_FAILURE_INVALID_STATE; } -static enum sci_status -scic_sds_port_default_reset_handler(struct scic_sds_port *sci_port, - u32 timeout) -{ - return default_port_handler(sci_port, __func__); -} - -static enum sci_status -scic_sds_port_default_add_phy_handler(struct scic_sds_port *sci_port, - struct scic_sds_phy *base_phy) -{ - return default_port_handler(sci_port, __func__); -} - -static enum sci_status -scic_sds_port_default_remove_phy_handler(struct scic_sds_port *sci_port, - struct scic_sds_phy *base_phy) -{ - return default_port_handler(sci_port, __func__); -} - /* * This is the default method for a port unsolicited frame request. It will * report a warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE Is it even @@ -1817,70 +1597,6 @@ static enum sci_status scic_sds_port_general_complete_io_handler( return SCI_SUCCESS; } -/* - * This method takes the struct scic_sds_port that is in a stopped state and handles - * the add phy request. In MPC mode the only time a phy can be added to a port - * is in the SCI_BASE_PORT_STATE_STOPPED. enum sci_status - * SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION is returned when the phy can not - * be added to the port. SCI_SUCCESS if the phy is added to the port. - */ -static enum sci_status scic_sds_port_stopped_state_add_phy_handler( - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - struct sci_sas_address port_sas_address; - - /* Read the port assigned SAS Address if there is one */ - scic_sds_port_get_sas_address(port, &port_sas_address); - - if (port_sas_address.high != 0 && port_sas_address.low != 0) { - struct sci_sas_address phy_sas_address; - - /* - * Make sure that the PHY SAS Address matches the SAS Address - * for this port. */ - scic_sds_phy_get_sas_address(phy, &phy_sas_address); - - if ( - (port_sas_address.high != phy_sas_address.high) - || (port_sas_address.low != phy_sas_address.low) - ) { - return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; - } - } - - return scic_sds_port_set_phy(port, phy); -} - -/* - * This method takes the struct scic_sds_port that is in a stopped state and handles - * the remove phy request. In MPC mode the only time a phy can be removed from - * a port is in the SCI_BASE_PORT_STATE_STOPPED. enum sci_status - * SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION is returned when the phy can not - * be added to the port. SCI_SUCCESS if the phy is added to the port. - */ -static enum sci_status scic_sds_port_stopped_state_remove_phy_handler( - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - return scic_sds_port_clear_phy(port, phy); -} - -/* - * **************************************************************************** - * * READY STATE HANDLERS - * **************************************************************************** */ - -/* - * **************************************************************************** - * * RESETTING STATE HANDLERS - * **************************************************************************** */ - -/* - * **************************************************************************** - * * STOPPING STATE HANDLERS - * **************************************************************************** */ - /* * This method takes the struct scic_sds_port that is in a stopping state and handles * the complete io request. Should the request count reach 0 then the port @@ -2044,11 +1760,171 @@ enum sci_status scic_sds_port_stop(struct scic_sds_port *sci_port) } } +static enum sci_status scic_port_hard_reset(struct scic_sds_port *sci_port, u32 timeout) +{ + enum sci_status status = SCI_FAILURE_INVALID_PHY; + struct scic_sds_phy *selected_phy = NULL; + enum scic_sds_port_states state; + u32 phy_index; + + state = sci_port->state_machine.current_state_id; + if (state != SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL) { + dev_warn(sciport_to_dev(sci_port), + "%s: in wrong state: %d\n", __func__, state); + return SCI_FAILURE_INVALID_STATE; + } + + /* Select a phy on which we can send the hard reset request. */ + for (phy_index = 0; phy_index < SCI_MAX_PHYS && !selected_phy; phy_index++) { + selected_phy = sci_port->phy_table[phy_index]; + if (selected_phy && + !scic_sds_port_active_phy(sci_port, selected_phy)) { + /* + * We found a phy but it is not ready select + * different phy + */ + selected_phy = NULL; + } + } + + /* If we have a phy then go ahead and start the reset procedure */ + if (!selected_phy) + return status; + status = scic_sds_phy_reset(selected_phy); + + if (status != SCI_SUCCESS) + return status; + + isci_timer_start(sci_port->timer_handle, timeout); + sci_port->not_ready_reason = SCIC_PORT_NOT_READY_HARD_RESET_REQUESTED; + + port_state_machine_change(sci_port, + SCI_BASE_PORT_STATE_RESETTING); + return SCI_SUCCESS; +} + +/** + * scic_sds_port_add_phy() - + * @sci_port: This parameter specifies the port in which the phy will be added. + * @sci_phy: This parameter is the phy which is to be added to the port. + * + * This method will add a PHY to the selected port. This method returns an + * enum sci_status. SCI_SUCCESS the phy has been added to the port. Any other + * status is a failure to add the phy to the port. + */ +enum sci_status scic_sds_port_add_phy(struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) +{ + enum sci_status status; + enum scic_sds_port_states state; + + state = sci_port->state_machine.current_state_id; + switch (state) { + case SCI_BASE_PORT_STATE_STOPPED: { + struct sci_sas_address port_sas_address; + + /* Read the port assigned SAS Address if there is one */ + scic_sds_port_get_sas_address(sci_port, &port_sas_address); + + if (port_sas_address.high != 0 && port_sas_address.low != 0) { + struct sci_sas_address phy_sas_address; + + /* Make sure that the PHY SAS Address matches the SAS Address + * for this port + */ + scic_sds_phy_get_sas_address(sci_phy, &phy_sas_address); + + if (port_sas_address.high != phy_sas_address.high || + port_sas_address.low != phy_sas_address.low) + return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; + } + return scic_sds_port_set_phy(sci_port, sci_phy); + } + case SCIC_SDS_PORT_READY_SUBSTATE_WAITING: + case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL: + status = scic_sds_port_set_phy(sci_port, sci_phy); + + if (status != SCI_SUCCESS) + return status; + + scic_sds_port_general_link_up_handler(sci_port, sci_phy, true); + sci_port->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; + port_state_machine_change(sci_port, SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); + + return status; + case SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING: + status = scic_sds_port_set_phy(sci_port, sci_phy); + + if (status != SCI_SUCCESS) + return status; + scic_sds_port_general_link_up_handler(sci_port, sci_phy, true); + + /* Re-enter the configuring state since this may be the last phy in + * the port. + */ + port_state_machine_change(sci_port, + SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); + return SCI_SUCCESS; + default: + dev_warn(sciport_to_dev(sci_port), + "%s: in wrong state: %d\n", __func__, state); + return SCI_FAILURE_INVALID_STATE; + } +} + +/** + * scic_sds_port_remove_phy() - + * @sci_port: This parameter specifies the port in which the phy will be added. + * @sci_phy: This parameter is the phy which is to be added to the port. + * + * This method will remove the PHY from the selected PORT. This method returns + * an enum sci_status. SCI_SUCCESS the phy has been removed from the port. Any + * other status is a failure to add the phy to the port. + */ +enum sci_status scic_sds_port_remove_phy(struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) +{ + enum sci_status status; + enum scic_sds_port_states state; + + state = sci_port->state_machine.current_state_id; + + switch (state) { + case SCI_BASE_PORT_STATE_STOPPED: + return scic_sds_port_clear_phy(sci_port, sci_phy); + case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL: + status = scic_sds_port_clear_phy(sci_port, sci_phy); + if (status != SCI_SUCCESS) + return status; + + scic_sds_port_deactivate_phy(sci_port, sci_phy, true); + sci_port->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; + port_state_machine_change(sci_port, + SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); + return SCI_SUCCESS; + case SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING: + status = scic_sds_port_clear_phy(sci_port, sci_phy); + + if (status != SCI_SUCCESS) + return status; + scic_sds_port_deactivate_phy(sci_port, sci_phy, true); + + /* Re-enter the configuring state since this may be the last phy in + * the port + */ + port_state_machine_change(sci_port, + SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); + + return SCI_SUCCESS; + default: + dev_warn(sciport_to_dev(sci_port), + "%s: in wrong state: %d\n", __func__, state); + return SCI_FAILURE_INVALID_STATE; + } +} + static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = { [SCI_BASE_PORT_STATE_STOPPED] = { - .reset_handler = scic_sds_port_default_reset_handler, - .add_phy_handler = scic_sds_port_stopped_state_add_phy_handler, - .remove_phy_handler = scic_sds_port_stopped_state_remove_phy_handler, .frame_handler = scic_sds_port_default_frame_handler, .event_handler = scic_sds_port_default_event_handler, .link_up_handler = scic_sds_port_default_link_up_handler, @@ -2057,9 +1933,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_default_complete_io_handler }, [SCI_BASE_PORT_STATE_STOPPING] = { - .reset_handler = scic_sds_port_default_reset_handler, - .add_phy_handler = scic_sds_port_default_add_phy_handler, - .remove_phy_handler = scic_sds_port_default_remove_phy_handler, .frame_handler = scic_sds_port_default_frame_handler, .event_handler = scic_sds_port_default_event_handler, .link_up_handler = scic_sds_port_default_link_up_handler, @@ -2068,9 +1941,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_stopping_state_complete_io_handler }, [SCI_BASE_PORT_STATE_READY] = { - .reset_handler = scic_sds_port_default_reset_handler, - .add_phy_handler = scic_sds_port_default_add_phy_handler, - .remove_phy_handler = scic_sds_port_default_remove_phy_handler, .frame_handler = scic_sds_port_default_frame_handler, .event_handler = scic_sds_port_default_event_handler, .link_up_handler = scic_sds_port_default_link_up_handler, @@ -2079,9 +1949,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_general_complete_io_handler }, [SCIC_SDS_PORT_READY_SUBSTATE_WAITING] = { - .reset_handler = scic_sds_port_default_reset_handler, - .add_phy_handler = scic_sds_port_ready_substate_add_phy_handler, - .remove_phy_handler = scic_sds_port_default_remove_phy_handler, .frame_handler = scic_sds_port_default_frame_handler, .event_handler = scic_sds_port_default_event_handler, .link_up_handler = scic_sds_port_ready_waiting_substate_link_up_handler, @@ -2090,9 +1957,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_ready_substate_complete_io_handler, }, [SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL] = { - .reset_handler = scic_sds_port_ready_operational_substate_reset_handler, - .add_phy_handler = scic_sds_port_ready_substate_add_phy_handler, - .remove_phy_handler = scic_sds_port_ready_substate_remove_phy_handler, .frame_handler = scic_sds_port_default_frame_handler, .event_handler = scic_sds_port_default_event_handler, .link_up_handler = scic_sds_port_ready_operational_substate_link_up_handler, @@ -2101,9 +1965,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_ready_substate_complete_io_handler, }, [SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING] = { - .reset_handler = scic_sds_port_default_reset_handler, - .add_phy_handler = scic_sds_port_ready_configuring_substate_add_phy_handler, - .remove_phy_handler = scic_sds_port_ready_configuring_substate_remove_phy_handler, .frame_handler = scic_sds_port_default_frame_handler, .event_handler = scic_sds_port_default_event_handler, .link_up_handler = scic_sds_port_default_link_up_handler, @@ -2112,9 +1973,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_ready_configuring_substate_complete_io_handler }, [SCI_BASE_PORT_STATE_RESETTING] = { - .reset_handler = scic_sds_port_default_reset_handler, - .add_phy_handler = scic_sds_port_default_add_phy_handler, - .remove_phy_handler = scic_sds_port_default_remove_phy_handler, .frame_handler = scic_sds_port_default_frame_handler, .event_handler = scic_sds_port_default_event_handler, .link_up_handler = scic_sds_port_reset_state_link_up_handler, @@ -2123,9 +1981,6 @@ static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = .complete_io_handler = scic_sds_port_general_complete_io_handler }, [SCI_BASE_PORT_STATE_FAILED] = { - .reset_handler = scic_sds_port_default_reset_handler, - .add_phy_handler = scic_sds_port_default_add_phy_handler, - .remove_phy_handler = scic_sds_port_default_remove_phy_handler, .frame_handler = scic_sds_port_default_frame_handler, .event_handler = scic_sds_port_default_event_handler, .link_up_handler = scic_sds_port_default_link_up_handler, diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index 70163710988..326279a194a 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -312,24 +312,6 @@ typedef enum sci_status (*scic_sds_port_io_request_handler_t)(struct scic_sds_po struct scic_sds_request *); struct scic_sds_port_state_handler { - /** - * The reset_handler specifies the method invoked when a user - * attempts to hard reset a port. - */ - scic_sds_port_reset_handler_t reset_handler; - - /** - * The add_phy_handler specifies the method invoked when a user - * attempts to add another phy into the port. - */ - scic_sds_port_phy_handler_t add_phy_handler; - - /** - * The remove_phy_handler specifies the method invoked when a user - * attempts to remove a phy from the port. - */ - scic_sds_port_phy_handler_t remove_phy_handler; - scic_sds_port_frame_handler_t frame_handler; scic_sds_port_event_handler_t event_handler; @@ -338,7 +320,6 @@ struct scic_sds_port_state_handler { scic_sds_port_io_request_handler_t start_io_handler; scic_sds_port_io_request_handler_t complete_io_handler; - }; /** -- cgit v1.2.3-70-g09d2 From 13721e186fd31cd8475e635a89383853871fdbf1 Mon Sep 17 00:00:00 2001 From: Piotr Sawicki Date: Thu, 12 May 2011 19:10:08 +0000 Subject: isci: remove port frame and event handlers Unused infrastructure. Reported-by: Christoph Hellwig Signed-off-by: Piotr Sawicki Signed-off-by: Dan Williams --- drivers/scsi/isci/port.c | 40 ---------------------------------------- drivers/scsi/isci/port.h | 3 --- 2 files changed, 43 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 5501e14c8d9..d58001cb0bc 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -1262,30 +1262,6 @@ static enum sci_status default_port_handler(struct scic_sds_port *sci_port, return SCI_FAILURE_INVALID_STATE; } -/* - * This is the default method for a port unsolicited frame request. It will - * report a warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE Is it even - * possible to receive an unsolicited frame directed to a port object? It - * seems possible if we implementing virtual functions but until then? - */ -static enum sci_status -scic_sds_port_default_frame_handler(struct scic_sds_port *sci_port, - u32 frame_index) -{ - struct scic_sds_controller *scic = scic_sds_port_get_controller(sci_port); - - default_port_handler(sci_port, __func__); - scic_sds_controller_release_frame(scic, frame_index); - - return SCI_FAILURE_INVALID_STATE; -} - -static enum sci_status scic_sds_port_default_event_handler(struct scic_sds_port *sci_port, - u32 event_code) -{ - return default_port_handler(sci_port, __func__); -} - static void scic_sds_port_default_link_up_handler(struct scic_sds_port *sci_port, struct scic_sds_phy *sci_phy) { @@ -1925,64 +1901,48 @@ enum sci_status scic_sds_port_remove_phy(struct scic_sds_port *sci_port, static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = { [SCI_BASE_PORT_STATE_STOPPED] = { - .frame_handler = scic_sds_port_default_frame_handler, - .event_handler = scic_sds_port_default_event_handler, .link_up_handler = scic_sds_port_default_link_up_handler, .link_down_handler = scic_sds_port_default_link_down_handler, .start_io_handler = scic_sds_port_default_start_io_handler, .complete_io_handler = scic_sds_port_default_complete_io_handler }, [SCI_BASE_PORT_STATE_STOPPING] = { - .frame_handler = scic_sds_port_default_frame_handler, - .event_handler = scic_sds_port_default_event_handler, .link_up_handler = scic_sds_port_default_link_up_handler, .link_down_handler = scic_sds_port_default_link_down_handler, .start_io_handler = scic_sds_port_default_start_io_handler, .complete_io_handler = scic_sds_port_stopping_state_complete_io_handler }, [SCI_BASE_PORT_STATE_READY] = { - .frame_handler = scic_sds_port_default_frame_handler, - .event_handler = scic_sds_port_default_event_handler, .link_up_handler = scic_sds_port_default_link_up_handler, .link_down_handler = scic_sds_port_default_link_down_handler, .start_io_handler = scic_sds_port_default_start_io_handler, .complete_io_handler = scic_sds_port_general_complete_io_handler }, [SCIC_SDS_PORT_READY_SUBSTATE_WAITING] = { - .frame_handler = scic_sds_port_default_frame_handler, - .event_handler = scic_sds_port_default_event_handler, .link_up_handler = scic_sds_port_ready_waiting_substate_link_up_handler, .link_down_handler = scic_sds_port_default_link_down_handler, .start_io_handler = scic_sds_port_ready_waiting_substate_start_io_handler, .complete_io_handler = scic_sds_port_ready_substate_complete_io_handler, }, [SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL] = { - .frame_handler = scic_sds_port_default_frame_handler, - .event_handler = scic_sds_port_default_event_handler, .link_up_handler = scic_sds_port_ready_operational_substate_link_up_handler, .link_down_handler = scic_sds_port_ready_operational_substate_link_down_handler, .start_io_handler = scic_sds_port_ready_operational_substate_start_io_handler, .complete_io_handler = scic_sds_port_ready_substate_complete_io_handler, }, [SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING] = { - .frame_handler = scic_sds_port_default_frame_handler, - .event_handler = scic_sds_port_default_event_handler, .link_up_handler = scic_sds_port_default_link_up_handler, .link_down_handler = scic_sds_port_default_link_down_handler, .start_io_handler = scic_sds_port_default_start_io_handler, .complete_io_handler = scic_sds_port_ready_configuring_substate_complete_io_handler }, [SCI_BASE_PORT_STATE_RESETTING] = { - .frame_handler = scic_sds_port_default_frame_handler, - .event_handler = scic_sds_port_default_event_handler, .link_up_handler = scic_sds_port_reset_state_link_up_handler, .link_down_handler = scic_sds_port_reset_state_link_down_handler, .start_io_handler = scic_sds_port_default_start_io_handler, .complete_io_handler = scic_sds_port_general_complete_io_handler }, [SCI_BASE_PORT_STATE_FAILED] = { - .frame_handler = scic_sds_port_default_frame_handler, - .event_handler = scic_sds_port_default_event_handler, .link_up_handler = scic_sds_port_default_link_up_handler, .link_down_handler = scic_sds_port_default_link_down_handler, .start_io_handler = scic_sds_port_default_start_io_handler, diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index 326279a194a..20f99263fa0 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -312,9 +312,6 @@ typedef enum sci_status (*scic_sds_port_io_request_handler_t)(struct scic_sds_po struct scic_sds_request *); struct scic_sds_port_state_handler { - scic_sds_port_frame_handler_t frame_handler; - scic_sds_port_event_handler_t event_handler; - scic_sds_port_link_handler_t link_up_handler; scic_sds_port_link_handler_t link_down_handler; -- cgit v1.2.3-70-g09d2 From 051266caaeb15719553c5316e3d43b533d3cd5a0 Mon Sep 17 00:00:00 2001 From: Piotr Sawicki Date: Thu, 12 May 2011 19:10:14 +0000 Subject: isci: unify port link_up and link_down handlers Unify the handlers and kill the state handler implementations. Reported-by: Christoph Hellwig Signed-off-by: Piotr Sawicki Signed-off-by: Dan Williams --- drivers/scsi/isci/port.c | 241 ++++++++++++++--------------------------------- drivers/scsi/isci/port.h | 14 +-- 2 files changed, 76 insertions(+), 179 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index d58001cb0bc..61ba37da437 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -928,36 +928,6 @@ bool scic_sds_port_link_detected( return true; } -/** - * This method is the entry point for the phy to inform the port that it is now - * in a ready state - * @sci_port: - * - * - */ -void scic_sds_port_link_up( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - sci_phy->is_in_link_training = false; - - sci_port->state_handlers->link_up_handler(sci_port, sci_phy); -} - -/** - * This method is the entry point for the phy to inform the port that it is no - * longer in a ready state - * @sci_port: - * - * - */ -void scic_sds_port_link_down( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - sci_port->state_handlers->link_down_handler(sci_port, sci_phy); -} - /** * This method is called to start an IO request on this port. * @sci_port: @@ -1135,29 +1105,6 @@ static enum sci_status scic_sds_port_ready_substate_complete_io_handler( return SCI_SUCCESS; } -/** - * - * @sci_port: This is the struct scic_sds_port object that which has a phy that has - * gone link up. - * @sci_phy: This is the struct scic_sds_phy object that has gone link up. - * - * This method is the ready waiting substate link up handler for the - * struct scic_sds_port object. This methos will report the link up condition for - * this port and will transition to the ready operational substate. none - */ -static void scic_sds_port_ready_waiting_substate_link_up_handler( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - /* - * Since this is the first phy going link up for the port we can just enable - * it and continue. */ - scic_sds_port_activate_phy(sci_port, sci_phy, true); - - port_state_machine_change(sci_port, - SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL); -} - /* * This method is the ready waiting substate start io handler for the * struct scic_sds_port object. The port object can not accept new requests so the @@ -1171,49 +1118,6 @@ static enum sci_status scic_sds_port_ready_waiting_substate_start_io_handler( return SCI_FAILURE_INVALID_STATE; } -/** - * scic_sds_port_ready_operational_substate_link_up_handler() - - * @sci_port: This is the struct scic_sds_port object that which has a phy that has - * gone link up. - * @sci_phy: This is the struct scic_sds_phy object that has gone link up. - * - * This method is the ready operational substate link up handler for the - * struct scic_sds_port object. This function notifies the SCI User that the phy has - * gone link up. none - */ -static void scic_sds_port_ready_operational_substate_link_up_handler( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - scic_sds_port_general_link_up_handler(sci_port, sci_phy, true); -} - -/** - * scic_sds_port_ready_operational_substate_link_down_handler() - - * @sci_port: This is the struct scic_sds_port object that which has a phy that has - * gone link down. - * @sci_phy: This is the struct scic_sds_phy object that has gone link down. - * - * This method is the ready operational substate link down handler for the - * struct scic_sds_port object. This function notifies the SCI User that the phy has - * gone link down and if this is the last phy in the port the port will change - * state to the ready waiting substate. none - */ -static void scic_sds_port_ready_operational_substate_link_down_handler( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - scic_sds_port_deactivate_phy(sci_port, sci_phy, true); - - /* - * If there are no active phys left in the port, then transition - * the port to the WAITING state until such time as a phy goes - * link up. */ - if (sci_port->active_phy_mask == 0) - port_state_machine_change(sci_port, - SCIC_SDS_PORT_READY_SUBSTATE_WAITING); -} - /* * This method is the ready operational substate start io handler for the * struct scic_sds_port object. This function incremetns the outstanding request @@ -1262,18 +1166,6 @@ static enum sci_status default_port_handler(struct scic_sds_port *sci_port, return SCI_FAILURE_INVALID_STATE; } -static void scic_sds_port_default_link_up_handler(struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - default_port_handler(sci_port, __func__); -} - -static void scic_sds_port_default_link_down_handler(struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - default_port_handler(sci_port, __func__); -} - static enum sci_status scic_sds_port_default_start_io_handler(struct scic_sds_port *sci_port, struct scic_sds_remote_device *sci_dev, struct scic_sds_request *sci_req) @@ -1592,51 +1484,6 @@ static enum sci_status scic_sds_port_stopping_state_complete_io_handler( return SCI_SUCCESS; } -/* - * **************************************************************************** - * * RESETTING STATE HANDLERS - * **************************************************************************** */ - -/* - * This method will transition a failed port to its ready state. The port - * failed because a hard reset request timed out but at some time later one or - * more phys in the port became ready. enum sci_status SCI_SUCCESS - */ -static void scic_sds_port_reset_state_link_up_handler( - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - /* - * / @todo We should make sure that the phy that has gone link up is the same - * / one on which we sent the reset. It is possible that the phy on - * / which we sent the reset is not the one that has gone link up and we - * / want to make sure that phy being reset comes back. Consider the - * / case where a reset is sent but before the hardware processes the - * / reset it get a link up on the port because of a hot plug event. - * / because of the reset request this phy will go link down almost - * / immediately. */ - - /* - * In the resetting state we don't notify the user regarding - * link up and link down notifications. */ - scic_sds_port_general_link_up_handler(port, phy, false); -} - -/* - * This method process link down notifications that occur during a port reset - * operation. Link downs can occur during the reset operation. enum sci_status - * SCI_SUCCESS - */ -static void scic_sds_port_reset_state_link_down_handler( - struct scic_sds_port *port, - struct scic_sds_phy *phy) -{ - /* - * In the resetting state we don't notify the user regarding - * link up and link down notifications. */ - scic_sds_port_deactivate_phy(port, phy, false); -} - enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port) { struct scic_sds_controller *scic = sci_port->owning_controller; @@ -1890,7 +1737,79 @@ enum sci_status scic_sds_port_remove_phy(struct scic_sds_port *sci_port, */ port_state_machine_change(sci_port, SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); + return SCI_SUCCESS; + default: + dev_warn(sciport_to_dev(sci_port), + "%s: in wrong state: %d\n", __func__, state); + return SCI_FAILURE_INVALID_STATE; + } +} +enum sci_status scic_sds_port_link_up(struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) +{ + enum scic_sds_port_states state; + + state = sci_port->state_machine.current_state_id; + switch (state) { + case SCIC_SDS_PORT_READY_SUBSTATE_WAITING: + /* Since this is the first phy going link up for the port we + * can just enable it and continue + */ + scic_sds_port_activate_phy(sci_port, sci_phy, true); + + port_state_machine_change(sci_port, + SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL); + return SCI_SUCCESS; + case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL: + scic_sds_port_general_link_up_handler(sci_port, sci_phy, true); + return SCI_SUCCESS; + case SCI_BASE_PORT_STATE_RESETTING: + /* TODO We should make sure that the phy that has gone + * link up is the same one on which we sent the reset. It is + * possible that the phy on which we sent the reset is not the + * one that has gone link up and we want to make sure that + * phy being reset comes back. Consider the case where a + * reset is sent but before the hardware processes the reset it + * get a link up on the port because of a hot plug event. + * because of the reset request this phy will go link down + * almost immediately. + */ + + /* In the resetting state we don't notify the user regarding + * link up and link down notifications. + */ + scic_sds_port_general_link_up_handler(sci_port, sci_phy, false); + return SCI_SUCCESS; + default: + dev_warn(sciport_to_dev(sci_port), + "%s: in wrong state: %d\n", __func__, state); + return SCI_FAILURE_INVALID_STATE; + } +} + +enum sci_status scic_sds_port_link_down(struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) +{ + enum scic_sds_port_states state; + + state = sci_port->state_machine.current_state_id; + switch (state) { + case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL: + scic_sds_port_deactivate_phy(sci_port, sci_phy, true); + + /* If there are no active phys left in the port, then + * transition the port to the WAITING state until such time + * as a phy goes link up + */ + if (sci_port->active_phy_mask == 0) + port_state_machine_change(sci_port, + SCIC_SDS_PORT_READY_SUBSTATE_WAITING); + return SCI_SUCCESS; + case SCI_BASE_PORT_STATE_RESETTING: + /* In the resetting state we don't notify the user regarding + * link up and link down notifications. */ + scic_sds_port_deactivate_phy(sci_port, sci_phy, false); return SCI_SUCCESS; default: dev_warn(sciport_to_dev(sci_port), @@ -1901,50 +1820,34 @@ enum sci_status scic_sds_port_remove_phy(struct scic_sds_port *sci_port, static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = { [SCI_BASE_PORT_STATE_STOPPED] = { - .link_up_handler = scic_sds_port_default_link_up_handler, - .link_down_handler = scic_sds_port_default_link_down_handler, .start_io_handler = scic_sds_port_default_start_io_handler, .complete_io_handler = scic_sds_port_default_complete_io_handler }, [SCI_BASE_PORT_STATE_STOPPING] = { - .link_up_handler = scic_sds_port_default_link_up_handler, - .link_down_handler = scic_sds_port_default_link_down_handler, .start_io_handler = scic_sds_port_default_start_io_handler, .complete_io_handler = scic_sds_port_stopping_state_complete_io_handler }, [SCI_BASE_PORT_STATE_READY] = { - .link_up_handler = scic_sds_port_default_link_up_handler, - .link_down_handler = scic_sds_port_default_link_down_handler, .start_io_handler = scic_sds_port_default_start_io_handler, .complete_io_handler = scic_sds_port_general_complete_io_handler }, [SCIC_SDS_PORT_READY_SUBSTATE_WAITING] = { - .link_up_handler = scic_sds_port_ready_waiting_substate_link_up_handler, - .link_down_handler = scic_sds_port_default_link_down_handler, .start_io_handler = scic_sds_port_ready_waiting_substate_start_io_handler, .complete_io_handler = scic_sds_port_ready_substate_complete_io_handler, }, [SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL] = { - .link_up_handler = scic_sds_port_ready_operational_substate_link_up_handler, - .link_down_handler = scic_sds_port_ready_operational_substate_link_down_handler, .start_io_handler = scic_sds_port_ready_operational_substate_start_io_handler, .complete_io_handler = scic_sds_port_ready_substate_complete_io_handler, }, [SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING] = { - .link_up_handler = scic_sds_port_default_link_up_handler, - .link_down_handler = scic_sds_port_default_link_down_handler, .start_io_handler = scic_sds_port_default_start_io_handler, .complete_io_handler = scic_sds_port_ready_configuring_substate_complete_io_handler }, [SCI_BASE_PORT_STATE_RESETTING] = { - .link_up_handler = scic_sds_port_reset_state_link_up_handler, - .link_down_handler = scic_sds_port_reset_state_link_down_handler, .start_io_handler = scic_sds_port_default_start_io_handler, .complete_io_handler = scic_sds_port_general_complete_io_handler }, [SCI_BASE_PORT_STATE_FAILED] = { - .link_up_handler = scic_sds_port_default_link_up_handler, - .link_down_handler = scic_sds_port_default_link_down_handler, .start_io_handler = scic_sds_port_default_start_io_handler, .complete_io_handler = scic_sds_port_general_complete_io_handler } diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index 20f99263fa0..bbce0ec583a 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -312,9 +312,6 @@ typedef enum sci_status (*scic_sds_port_io_request_handler_t)(struct scic_sds_po struct scic_sds_request *); struct scic_sds_port_state_handler { - scic_sds_port_link_handler_t link_up_handler; - scic_sds_port_link_handler_t link_down_handler; - scic_sds_port_io_request_handler_t start_io_handler; scic_sds_port_io_request_handler_t complete_io_handler; }; @@ -402,13 +399,10 @@ bool scic_sds_port_link_detected( struct scic_sds_port *sci_port, struct scic_sds_phy *sci_phy); -void scic_sds_port_link_up( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy); - -void scic_sds_port_link_down( - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy); +enum sci_status scic_sds_port_link_up(struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy); +enum sci_status scic_sds_port_link_down(struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy); enum sci_status scic_sds_port_start_io( struct scic_sds_port *sci_port, -- cgit v1.2.3-70-g09d2 From 6813820c7b892e1a5c2306808a5ccc8a27b7946d Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 12 May 2011 07:16:06 -0700 Subject: isci: unify port start_io and complete_io handlers Unify the handlers and kill the state handler infrastructure. Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/port.c | 432 +++++++---------------------------------------- drivers/scsi/isci/port.h | 55 +----- 2 files changed, 59 insertions(+), 428 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 61ba37da437..f43c1f6c966 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -61,8 +61,6 @@ #define SCIC_SDS_PORT_HARD_RESET_TIMEOUT (1000) #define SCU_DUMMY_INDEX (0xFFFF) -static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[]; - static void isci_port_change_state(struct isci_port *iport, enum isci_status status) { unsigned long flags; @@ -928,40 +926,6 @@ bool scic_sds_port_link_detected( return true; } -/** - * This method is called to start an IO request on this port. - * @sci_port: - * @sci_dev: - * @sci_req: - * - * enum sci_status - */ -enum sci_status scic_sds_port_start_io( - struct scic_sds_port *sci_port, - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req) -{ - return sci_port->state_handlers->start_io_handler( - sci_port, sci_dev, sci_req); -} - -/** - * This method is called to complete an IO request to the port. - * @sci_port: - * @sci_dev: - * @sci_req: - * - * enum sci_status - */ -enum sci_status scic_sds_port_complete_io( - struct scic_sds_port *sci_port, - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req) -{ - return sci_port->state_handlers->complete_io_handler( - sci_port, sci_dev, sci_req); -} - /** * This method is provided to timeout requests for port operations. Mostly its * for the port reset operation. @@ -1085,106 +1049,6 @@ static void scic_port_enable_broadcast_change_notification(struct scic_sds_port } } -/* - * **************************************************************************** - * * READY SUBSTATE HANDLERS - * **************************************************************************** */ - -/* - * This method is the general ready substate complete io handler for the - * struct scic_sds_port object. This function decrments the outstanding request count - * for this port object. enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_port_ready_substate_complete_io_handler( - struct scic_sds_port *port, - struct scic_sds_remote_device *device, - struct scic_sds_request *io_request) -{ - scic_sds_port_decrement_request_count(port); - - return SCI_SUCCESS; -} - -/* - * This method is the ready waiting substate start io handler for the - * struct scic_sds_port object. The port object can not accept new requests so the - * request is failed. enum sci_status SCI_FAILURE_INVALID_STATE - */ -static enum sci_status scic_sds_port_ready_waiting_substate_start_io_handler( - struct scic_sds_port *port, - struct scic_sds_remote_device *device, - struct scic_sds_request *io_request) -{ - return SCI_FAILURE_INVALID_STATE; -} - -/* - * This method is the ready operational substate start io handler for the - * struct scic_sds_port object. This function incremetns the outstanding request - * count for this port object. enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_port_ready_operational_substate_start_io_handler( - struct scic_sds_port *port, - struct scic_sds_remote_device *device, - struct scic_sds_request *io_request) -{ - port->started_request_count++; - return SCI_SUCCESS; -} - -/** - * scic_sds_port_ready_configuring_substate_complete_io_handler() - - * @port: This is the port that is being requested to complete the io request. - * @device: This is the device on which the io is completing. - * - * This method will decrement the outstanding request count for this port. If - * the request count goes to 0 then the port can be reprogrammed with its new - * phy data. - */ -static enum sci_status -scic_sds_port_ready_configuring_substate_complete_io_handler( - struct scic_sds_port *port, - struct scic_sds_remote_device *device, - struct scic_sds_request *io_request) -{ - scic_sds_port_decrement_request_count(port); - - if (port->started_request_count == 0) { - port_state_machine_change(port, - SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL); - } - - return SCI_SUCCESS; -} - -static enum sci_status default_port_handler(struct scic_sds_port *sci_port, - const char *func) -{ - dev_warn(sciport_to_dev(sci_port), - "%s: in wrong state: %d\n", func, - sci_base_state_machine_get_state(&sci_port->state_machine)); - return SCI_FAILURE_INVALID_STATE; -} - -static enum sci_status scic_sds_port_default_start_io_handler(struct scic_sds_port *sci_port, - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req) -{ - return default_port_handler(sci_port, __func__); -} - -static enum sci_status scic_sds_port_default_complete_io_handler(struct scic_sds_port *sci_port, - struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req) -{ - return default_port_handler(sci_port, __func__); -} - -/* - * ****************************************************************************** - * * PORT STATE PRIVATE METHODS - * ****************************************************************************** */ - /** * * @sci_port: This is the struct scic_sds_port object to suspend. @@ -1269,28 +1133,10 @@ scic_sds_port_resume_port_task_scheduler(struct scic_sds_port *port) writel(pts_control_value, &port->port_task_scheduler_registers->control); } -/* - * ****************************************************************************** - * * PORT READY SUBSTATE METHODS - * ****************************************************************************** */ - -/** - * - * @object: This is the object which is cast to a struct scic_sds_port object. - * - * This method will perform the actions required by the struct scic_sds_port on - * entering the SCIC_SDS_PORT_READY_SUBSTATE_WAITING. This function checks the - * port for any ready phys. If there is at least one phy in a ready state then - * the port transitions to the ready operational substate. none - */ static void scic_sds_port_ready_substate_waiting_enter(void *object) { struct scic_sds_port *sci_port = object; - scic_sds_port_set_base_state_handlers( - sci_port, SCIC_SDS_PORT_READY_SUBSTATE_WAITING - ); - scic_sds_port_suspend_port_task_scheduler(sci_port); sci_port->not_ready_reason = SCIC_PORT_NOT_READY_NO_ACTIVE_PHYS; @@ -1302,15 +1148,6 @@ static void scic_sds_port_ready_substate_waiting_enter(void *object) } } -/** - * - * @object: This is the object which is cast to a struct scic_sds_port object. - * - * This function will perform the actions required by the struct scic_sds_port - * on entering the SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL. This function sets - * the state handlers for the port object, notifies the SCI User that the port - * is ready, and resumes port operations. none - */ static void scic_sds_port_ready_substate_operational_enter(void *object) { u32 index; @@ -1319,10 +1156,6 @@ static void scic_sds_port_ready_substate_operational_enter(void *object) struct isci_host *ihost = scic_to_ihost(scic); struct isci_port *iport = sci_port_to_iport(sci_port); - scic_sds_port_set_base_state_handlers( - sci_port, - SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL); - isci_port_ready(ihost, iport); for (index = 0; index < SCI_MAX_PHYS; index++) { @@ -1397,19 +1230,6 @@ static void scic_sds_port_ready_substate_operational_exit(void *object) scic_sds_port_invalidate_dummy_remote_node(sci_port); } -/* - * ****************************************************************************** - * * PORT READY CONFIGURING METHODS - * ****************************************************************************** */ - -/** - * scic_sds_port_ready_substate_configuring_enter() - - * @object: This is the object which is cast to a struct scic_sds_port object. - * - * This method will perform the actions required by the struct scic_sds_port on - * exiting the SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL. This function reports - * the port not ready and suspends the port task scheduler. none - */ static void scic_sds_port_ready_substate_configuring_enter(void *object) { struct scic_sds_port *sci_port = object; @@ -1417,10 +1237,6 @@ static void scic_sds_port_ready_substate_configuring_enter(void *object) struct isci_host *ihost = scic_to_ihost(scic); struct isci_port *iport = sci_port_to_iport(sci_port); - scic_sds_port_set_base_state_handlers( - sci_port, - SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); - if (sci_port->active_phy_mask == 0) { isci_port_not_ready(ihost, iport); @@ -1440,50 +1256,6 @@ static void scic_sds_port_ready_substate_configuring_exit(void *object) scic_sds_port_invalidate_dummy_remote_node(sci_port); } -/* --------------------------------------------------------------------------- */ - -/** - * - * @port: This is the struct scic_sds_port object on which the io request count will - * be decremented. - * @device: This is the struct scic_sds_remote_device object to which the io request - * is being directed. This parameter is not required to complete this - * operation. - * @io_request: This is the request that is being completed on this port - * object. This parameter is not required to complete this operation. - * - * This is a general complete io request handler for the struct scic_sds_port object. - * enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_port_general_complete_io_handler( - struct scic_sds_port *port, - struct scic_sds_remote_device *device, - struct scic_sds_request *io_request) -{ - scic_sds_port_decrement_request_count(port); - - return SCI_SUCCESS; -} - -/* - * This method takes the struct scic_sds_port that is in a stopping state and handles - * the complete io request. Should the request count reach 0 then the port - * object will transition to the stopped state. enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_port_stopping_state_complete_io_handler( - struct scic_sds_port *sci_port, - struct scic_sds_remote_device *device, - struct scic_sds_request *io_request) -{ - scic_sds_port_decrement_request_count(sci_port); - - if (sci_port->started_request_count == 0) - port_state_machine_change(sci_port, - SCI_BASE_PORT_STATE_STOPPED); - - return SCI_SUCCESS; -} - enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port) { struct scic_sds_controller *scic = sci_port->owning_controller; @@ -1818,45 +1590,62 @@ enum sci_status scic_sds_port_link_down(struct scic_sds_port *sci_port, } } -static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = { - [SCI_BASE_PORT_STATE_STOPPED] = { - .start_io_handler = scic_sds_port_default_start_io_handler, - .complete_io_handler = scic_sds_port_default_complete_io_handler - }, - [SCI_BASE_PORT_STATE_STOPPING] = { - .start_io_handler = scic_sds_port_default_start_io_handler, - .complete_io_handler = scic_sds_port_stopping_state_complete_io_handler - }, - [SCI_BASE_PORT_STATE_READY] = { - .start_io_handler = scic_sds_port_default_start_io_handler, - .complete_io_handler = scic_sds_port_general_complete_io_handler - }, - [SCIC_SDS_PORT_READY_SUBSTATE_WAITING] = { - .start_io_handler = scic_sds_port_ready_waiting_substate_start_io_handler, - .complete_io_handler = scic_sds_port_ready_substate_complete_io_handler, - }, - [SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL] = { - .start_io_handler = scic_sds_port_ready_operational_substate_start_io_handler, - .complete_io_handler = scic_sds_port_ready_substate_complete_io_handler, - }, - [SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING] = { - .start_io_handler = scic_sds_port_default_start_io_handler, - .complete_io_handler = scic_sds_port_ready_configuring_substate_complete_io_handler - }, - [SCI_BASE_PORT_STATE_RESETTING] = { - .start_io_handler = scic_sds_port_default_start_io_handler, - .complete_io_handler = scic_sds_port_general_complete_io_handler - }, - [SCI_BASE_PORT_STATE_FAILED] = { - .start_io_handler = scic_sds_port_default_start_io_handler, - .complete_io_handler = scic_sds_port_general_complete_io_handler +enum sci_status scic_sds_port_start_io(struct scic_sds_port *sci_port, + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *sci_req) +{ + enum scic_sds_port_states state; + + state = sci_port->state_machine.current_state_id; + switch (state) { + case SCIC_SDS_PORT_READY_SUBSTATE_WAITING: + return SCI_FAILURE_INVALID_STATE; + case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL: + sci_port->started_request_count++; + return SCI_SUCCESS; + default: + dev_warn(sciport_to_dev(sci_port), + "%s: in wrong state: %d\n", __func__, state); + return SCI_FAILURE_INVALID_STATE; } -}; +} -/* - * ****************************************************************************** - * * PORT STATE PRIVATE METHODS - * ****************************************************************************** */ +enum sci_status scic_sds_port_complete_io(struct scic_sds_port *sci_port, + struct scic_sds_remote_device *sci_dev, + struct scic_sds_request *sci_req) +{ + enum scic_sds_port_states state; + + state = sci_port->state_machine.current_state_id; + switch (state) { + case SCI_BASE_PORT_STATE_STOPPED: + dev_warn(sciport_to_dev(sci_port), + "%s: in wrong state: %d\n", __func__, state); + return SCI_FAILURE_INVALID_STATE; + case SCI_BASE_PORT_STATE_STOPPING: + scic_sds_port_decrement_request_count(sci_port); + + if (sci_port->started_request_count == 0) + port_state_machine_change(sci_port, + SCI_BASE_PORT_STATE_STOPPED); + break; + case SCI_BASE_PORT_STATE_READY: + case SCI_BASE_PORT_STATE_RESETTING: + case SCI_BASE_PORT_STATE_FAILED: + case SCIC_SDS_PORT_READY_SUBSTATE_WAITING: + case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL: + scic_sds_port_decrement_request_count(sci_port); + break; + case SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING: + scic_sds_port_decrement_request_count(sci_port); + if (sci_port->started_request_count == 0) { + port_state_machine_change(sci_port, + SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL); + } + break; + } + return SCI_SUCCESS; +} /** * @@ -1921,32 +1710,11 @@ static void scic_sds_port_post_dummy_remote_node(struct scic_sds_port *sci_port) scic_sds_controller_post_request(scic, command); } -/* - * ****************************************************************************** - * * PORT STATE METHODS - * ****************************************************************************** */ - -/** - * - * @object: This is the object which is cast to a struct scic_sds_port object. - * - * This method will perform the actions required by the struct scic_sds_port on - * entering the SCI_BASE_PORT_STATE_STOPPED. This function sets the stopped - * state handlers for the struct scic_sds_port object and disables the port task - * scheduler in the hardware. none - */ static void scic_sds_port_stopped_state_enter(void *object) { struct scic_sds_port *sci_port = object; - scic_sds_port_set_base_state_handlers( - sci_port, SCI_BASE_PORT_STATE_STOPPED - ); - - if ( - SCI_BASE_PORT_STATE_STOPPING - == sci_port->state_machine.previous_state_id - ) { + if (sci_port->state_machine.previous_state_id == SCI_BASE_PORT_STATE_STOPPING) { /* * If we enter this state becasuse of a request to stop * the port then we want to disable the hardwares port @@ -1955,14 +1723,6 @@ static void scic_sds_port_stopped_state_enter(void *object) } } -/** - * - * @object: This is the object which is cast to a struct scic_sds_port object. - * - * This method will perform the actions required by the struct scic_sds_port on - * exiting the SCI_BASE_STATE_STOPPED. This function enables the SCU hardware - * port task scheduler. none - */ static void scic_sds_port_stopped_state_exit(void *object) { struct scic_sds_port *sci_port = object; @@ -1971,15 +1731,6 @@ static void scic_sds_port_stopped_state_exit(void *object) scic_sds_port_enable_port_task_scheduler(sci_port); } -/** - * scic_sds_port_ready_state_enter - - * @object: This is the object which is cast to a struct scic_sds_port object. - * - * This method will perform the actions required by the struct scic_sds_port on - * entering the SCI_BASE_PORT_STATE_READY. This function sets the ready state - * handlers for the struct scic_sds_port object, reports the port object as - * not ready and starts the ready substate machine. none - */ static void scic_sds_port_ready_state_enter(void *object) { struct scic_sds_port *sci_port = object; @@ -1988,9 +1739,6 @@ static void scic_sds_port_ready_state_enter(void *object) struct isci_port *iport = sci_port_to_iport(sci_port); u32 prev_state; - /* Put the ready state handlers in place though they will not be there long */ - scic_sds_port_set_base_state_handlers(sci_port, SCI_BASE_PORT_STATE_READY); - prev_state = sci_port->state_machine.previous_state_id; if (prev_state == SCI_BASE_PORT_STATE_RESETTING) isci_port_hard_reset_complete(iport, SCI_SUCCESS); @@ -2005,66 +1753,14 @@ static void scic_sds_port_ready_state_enter(void *object) SCIC_SDS_PORT_READY_SUBSTATE_WAITING); } -/** - * - * @object: This is the object which is cast to a struct scic_sds_port object. - * - * This method will perform the actions required by the struct scic_sds_port on - * entering the SCI_BASE_PORT_STATE_RESETTING. This function sets the resetting - * state handlers for the struct scic_sds_port object. none - */ -static void scic_sds_port_resetting_state_enter(void *object) -{ - struct scic_sds_port *sci_port = object; - - scic_sds_port_set_base_state_handlers( - sci_port, SCI_BASE_PORT_STATE_RESETTING - ); -} - -/** - * - * @object: This is the object which is cast to a struct scic_sds_port object. - * - * This function will perform the actions required by the - * struct scic_sds_port on - * exiting the SCI_BASE_STATE_RESETTING. This function does nothing. none - */ -static inline void scic_sds_port_resetting_state_exit(void *object) +static void scic_sds_port_resetting_state_exit(void *object) { struct scic_sds_port *sci_port = object; isci_timer_stop(sci_port->timer_handle); } -/** - * - * @object: This is the void object which is cast to a - * struct scic_sds_port object. - * - * This method will perform the actions required by the struct scic_sds_port on - * entering the SCI_BASE_PORT_STATE_STOPPING. This function sets the stopping - * state handlers for the struct scic_sds_port object. none - */ -static void scic_sds_port_stopping_state_enter(void *object) -{ - struct scic_sds_port *sci_port = object; - - scic_sds_port_set_base_state_handlers( - sci_port, SCI_BASE_PORT_STATE_STOPPING - ); -} - -/** - * - * @object: This is the object which is cast to a struct scic_sds_port object. - * - * This function will perform the actions required by the - * struct scic_sds_port on - * exiting the SCI_BASE_STATE_STOPPING. This function does nothing. none - */ -static inline void -scic_sds_port_stopping_state_exit(void *object) +static void scic_sds_port_stopping_state_exit(void *object) { struct scic_sds_port *sci_port = object; @@ -2073,23 +1769,11 @@ scic_sds_port_stopping_state_exit(void *object) scic_sds_port_destroy_dummy_resources(sci_port); } -/** - * - * @object: This is the object which is cast to a struct scic_sds_port object. - * - * This function will perform the actions required by the - * struct scic_sds_port on - * entering the SCI_BASE_PORT_STATE_STOPPING. This function sets the stopping - * state handlers for the struct scic_sds_port object. none - */ static void scic_sds_port_failed_state_enter(void *object) { struct scic_sds_port *sci_port = object; struct isci_port *iport = sci_port_to_iport(sci_port); - scic_sds_port_set_base_state_handlers(sci_port, - SCI_BASE_PORT_STATE_FAILED); - isci_port_hard_reset_complete(iport, SCI_FAILURE_TIMEOUT); } @@ -2101,7 +1785,6 @@ static const struct sci_base_state scic_sds_port_state_table[] = { .exit_state = scic_sds_port_stopped_state_exit }, [SCI_BASE_PORT_STATE_STOPPING] = { - .enter_state = scic_sds_port_stopping_state_enter, .exit_state = scic_sds_port_stopping_state_exit }, [SCI_BASE_PORT_STATE_READY] = { @@ -2119,7 +1802,6 @@ static const struct sci_base_state scic_sds_port_state_table[] = { .exit_state = scic_sds_port_ready_substate_configuring_exit }, [SCI_BASE_PORT_STATE_RESETTING] = { - .enter_state = scic_sds_port_resetting_state_enter, .exit_state = scic_sds_port_resetting_state_exit }, [SCI_BASE_PORT_STATE_FAILED] = { diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index bbce0ec583a..af540e5c03a 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -144,15 +144,6 @@ struct scic_sds_port { */ void *timer_handle; - /** - * This field points to the current set of state handlers for this port - * object. These state handlers are assigned at each enter state of - * the state machine. - */ - struct scic_sds_port_state_handler *state_handlers; - - /* / Memory mapped hardware register space */ - /** * This field is the pointer to the port task scheduler registers * for the SCU hardware. @@ -286,34 +277,7 @@ enum scic_sds_port_states { */ SCI_BASE_PORT_STATE_FAILED, - SCI_BASE_PORT_MAX_STATES - -}; - -struct scic_sds_remote_device; -struct scic_sds_request; - -typedef enum sci_status (*scic_sds_port_handler_t)(struct scic_sds_port *); - -typedef enum sci_status (*scic_sds_port_phy_handler_t)(struct scic_sds_port *, - struct scic_sds_phy *); - -typedef enum sci_status (*scic_sds_port_reset_handler_t)(struct scic_sds_port *, - u32 timeout); - -typedef enum sci_status (*scic_sds_port_event_handler_t)(struct scic_sds_port *, u32); -typedef enum sci_status (*scic_sds_port_frame_handler_t)(struct scic_sds_port *, u32); - -typedef void (*scic_sds_port_link_handler_t)(struct scic_sds_port *, struct scic_sds_phy *); - -typedef enum sci_status (*scic_sds_port_io_request_handler_t)(struct scic_sds_port *, - struct scic_sds_remote_device *, - struct scic_sds_request *); - -struct scic_sds_port_state_handler { - scic_sds_port_io_request_handler_t start_io_handler; - scic_sds_port_io_request_handler_t complete_io_handler; }; /** @@ -324,23 +288,6 @@ struct scic_sds_port_state_handler { #define scic_sds_port_get_controller(this_port) \ ((this_port)->owning_controller) -/** - * scic_sds_port_set_base_state_handlers() - - * - * This macro will change the state handlers to those of the specified state id - */ -#define scic_sds_port_set_base_state_handlers(this_port, state_id) \ - scic_sds_port_set_state_handlers(\ - (this_port), &scic_sds_port_state_handler_table[(state_id)]) - -/** - * scic_sds_port_set_state_handlers() - - * - * Helper macro to set the port object state handlers - */ -#define scic_sds_port_set_state_handlers(this_port, handlers) \ - ((this_port)->state_handlers = (handlers)) - /** * scic_sds_port_get_index() - * @@ -404,6 +351,8 @@ enum sci_status scic_sds_port_link_up(struct scic_sds_port *sci_port, enum sci_status scic_sds_port_link_down(struct scic_sds_port *sci_port, struct scic_sds_phy *sci_phy); +struct scic_sds_request; +struct scic_sds_remote_device; enum sci_status scic_sds_port_start_io( struct scic_sds_port *sci_port, struct scic_sds_remote_device *sci_dev, -- cgit v1.2.3-70-g09d2 From 5553ba2be0f3e3741e1a885a33d2b89921f9fd48 Mon Sep 17 00:00:00 2001 From: Edmund Nadolski Date: Thu, 19 May 2011 11:59:10 +0000 Subject: isci: replace isci_timer list with proper embedded timers Rather than preallocating a list of timers and doling them out at runtime, embed a struct timerlist in each object that needs one. A struct sci_timer interface is introduced to manage the timer cancellation semantics which currently need to guarantee the timer is cancelled while holding spin_lock(ihost->scic_lock). Since the timeout functions also need to acquire the lock it currently prevents the driver from using del_timer_sync() for runtime cancellations. del_timer_sync() is used however before the objects go out of scope. Signed-off-by: Edmund Nadolski Signed-off-by: Dan Williams --- drivers/scsi/isci/host.c | 7 +++++++ drivers/scsi/isci/isci.h | 33 +++++++++++++++++++++++++++++++++ drivers/scsi/isci/port.c | 39 ++++++++++++++++++--------------------- drivers/scsi/isci/port.h | 6 ++---- 4 files changed, 60 insertions(+), 25 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index 6cd7648197e..a3269b6fa22 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -1359,6 +1359,13 @@ void isci_host_deinit(struct isci_host *ihost) wait_for_stop(ihost); scic_controller_reset(&ihost->sci); + + /* Cancel any/all outstanding port timers */ + for (i = 0; i < ihost->sci.logical_port_entries; i++) { + struct scic_sds_port *sci_port = &ihost->ports[i].sci; + del_timer_sync(&sci_port->timer.timer); + } + isci_timer_list_destroy(ihost); } diff --git a/drivers/scsi/isci/isci.h b/drivers/scsi/isci/isci.h index 69826eac97b..2fe5557d859 100644 --- a/drivers/scsi/isci/isci.h +++ b/drivers/scsi/isci/isci.h @@ -551,4 +551,37 @@ extern unsigned char max_concurr_spinup; irqreturn_t isci_msix_isr(int vec, void *data); irqreturn_t isci_intx_isr(int vec, void *data); irqreturn_t isci_error_isr(int vec, void *data); + +/* + * Each timer is associated with a cancellation flag that is set when + * del_timer() is called and checked in the timer callback function. This + * is needed since del_timer_sync() cannot be called with scic_lock held. + * For deinit however, del_timer_sync() is used without holding the lock. + */ +struct sci_timer { + struct timer_list timer; + bool cancel; +}; + +static inline +void sci_init_timer(struct sci_timer *tmr, void (*fn)(unsigned long)) +{ + tmr->timer.function = fn; + tmr->timer.data = (unsigned long) tmr; + tmr->cancel = 0; + init_timer(&tmr->timer); +} + +static inline void sci_mod_timer(struct sci_timer *tmr, unsigned long msec) +{ + tmr->cancel = 0; + mod_timer(&tmr->timer, jiffies + msecs_to_jiffies(msec)); +} + +static inline void sci_del_timer(struct sci_timer *tmr) +{ + tmr->cancel = 1; + del_timer(&tmr->timer); +} + #endif /* __ISCI_H__ */ diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 3050415e228..3da9048b45b 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -926,17 +926,19 @@ bool scic_sds_port_link_detected( return true; } -/** - * This method is provided to timeout requests for port operations. Mostly its - * for the port reset operation. - * - * - */ -static void scic_sds_port_timeout_handler(void *port) +static void port_timeout(unsigned long data) { - struct scic_sds_port *sci_port = port; + struct sci_timer *tmr = (struct sci_timer *)data; + struct scic_sds_port *sci_port = container_of(tmr, typeof(*sci_port), timer); + struct isci_host *ihost = scic_to_ihost(sci_port->owning_controller); + unsigned long flags; u32 current_state; + spin_lock_irqsave(&ihost->scic_lock, flags); + + if (tmr->cancel) + goto done; + current_state = sci_base_state_machine_get_state(&sci_port->state_machine); if (current_state == SCI_BASE_PORT_STATE_RESETTING) { @@ -965,6 +967,9 @@ static void scic_sds_port_timeout_handler(void *port) "%s: SCIC Port 0x%p is processing a timeout operation " "in state %d.\n", __func__, sci_port, current_state); } + +done: + spin_unlock_irqrestore(&ihost->scic_lock, flags); } /* --------------------------------------------------------------------------- */ @@ -1259,7 +1264,6 @@ static void scic_sds_port_ready_substate_configuring_exit(struct sci_base_state_ enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port) { struct scic_sds_controller *scic = sci_port->owning_controller; - struct isci_host *ihost = scic_to_ihost(scic); enum sci_status status = SCI_SUCCESS; enum scic_sds_port_states state; u32 phy_mask; @@ -1280,14 +1284,6 @@ enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port) return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; } - sci_port->timer_handle = - isci_timer_create(ihost, - sci_port, - scic_sds_port_timeout_handler); - - if (!sci_port->timer_handle) - return SCI_FAILURE_INSUFFICIENT_RESOURCES; - if (sci_port->reserved_rni == SCU_DUMMY_INDEX) { u16 rni = scic_sds_remote_node_table_allocate_remote_node( &scic->available_remote_nodes, 1); @@ -1390,7 +1386,7 @@ static enum sci_status scic_port_hard_reset(struct scic_sds_port *sci_port, u32 if (status != SCI_SUCCESS) return status; - isci_timer_start(sci_port->timer_handle, timeout); + sci_mod_timer(&sci_port->timer, timeout); sci_port->not_ready_reason = SCIC_PORT_NOT_READY_HARD_RESET_REQUESTED; port_state_machine_change(sci_port, @@ -1757,14 +1753,14 @@ static void scic_sds_port_resetting_state_exit(struct sci_base_state_machine *sm { struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine); - isci_timer_stop(sci_port->timer_handle); + sci_del_timer(&sci_port->timer); } static void scic_sds_port_stopping_state_exit(struct sci_base_state_machine *sm) { struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine); - isci_timer_stop(sci_port->timer_handle); + sci_del_timer(&sci_port->timer); scic_sds_port_destroy_dummy_resources(sci_port); } @@ -1831,7 +1827,8 @@ void scic_sds_port_construct(struct scic_sds_port *sci_port, u8 index, sci_port->reserved_rni = SCU_DUMMY_INDEX; sci_port->reserved_tci = SCU_DUMMY_INDEX; - sci_port->timer_handle = NULL; + sci_init_timer(&sci_port->timer, port_timeout); + sci_port->port_task_scheduler_registers = NULL; for (index = 0; index < SCI_MAX_PHYS; index++) diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index af540e5c03a..9a6912855fc 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -139,10 +139,8 @@ struct scic_sds_port { */ struct scic_sds_controller *owning_controller; - /** - * This field contains the port start/stop timer handle. - */ - void *timer_handle; + /* timer used for port start/stop operations */ + struct sci_timer timer; /** * This field is the pointer to the port task scheduler registers -- cgit v1.2.3-70-g09d2 From e301370ac553a9a0ac0d1d25e769b86cf60395b3 Mon Sep 17 00:00:00 2001 From: Edmund Nadolski Date: Thu, 2 Jun 2011 00:10:43 +0000 Subject: isci: state machine cleanup This cleans up several areas of the state machine mechanism: o Rename sci_base_state_machine_change_state to sci_change_state o Remove sci_base_state_machine_get_state function o Rename 'state_machine' struct member to 'sm' in client structs o Shorten the name of request states o Shorten state machine state names as follows: SCI_BASE_CONTROLLER_STATE_xxx to SCIC_xxx SCI_BASE_PHY_STATE_xxx to SCI_PHY_xxx SCIC_SDS_PHY_STARTING_SUBSTATE_xxx to SCI_PHY_SUB_xxx SCI_BASE_PORT_STATE_xxx to SCI_PORT_xxx and SCIC_SDS_PORT_READY_SUBSTATE_xxx to SCI_PORT_SUB_xxx SCI_BASE_REMOTE_DEVICE_STATE_xxx to SCI_DEV_xxx SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_xxx to SCI_STP_DEV_xxx SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_xxx to SCI_SMP_DEV_xxx SCIC_SDS_REMOTE_NODE_CONTEXT_xxx_STATE to SCI_RNC_xxx Signed-off-by: Edmund Nadolski Signed-off-by: Dave Jiang Signed-off-by: Dan Williams --- drivers/scsi/isci/host.c | 201 +++++------ drivers/scsi/isci/host.h | 25 +- drivers/scsi/isci/phy.c | 244 ++++++------- drivers/scsi/isci/phy.h | 34 +- drivers/scsi/isci/port.c | 186 +++++----- drivers/scsi/isci/port.h | 18 +- drivers/scsi/isci/port_config.c | 4 +- drivers/scsi/isci/remote_device.c | 349 ++++++++++--------- drivers/scsi/isci/remote_device.h | 34 +- drivers/scsi/isci/remote_node_context.c | 154 ++++----- drivers/scsi/isci/remote_node_context.h | 18 +- drivers/scsi/isci/request.c | 582 +++++++++++++++++--------------- drivers/scsi/isci/request.h | 357 ++++++++++---------- drivers/scsi/isci/state_machine.c | 26 +- drivers/scsi/isci/state_machine.h | 4 +- 15 files changed, 1076 insertions(+), 1160 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index 8801955be21..81ee64c0a4b 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -635,8 +635,7 @@ static void scic_sds_controller_error_handler(struct scic_sds_controller *scic) dev_err(scic_to_dev(scic), "%s: status: %#x\n", __func__, interrupt_status); - sci_base_state_machine_change_state(&scic->state_machine, - SCI_BASE_CONTROLLER_STATE_FAILED); + sci_change_state(&scic->sm, SCIC_FAILED); return; } @@ -895,14 +894,12 @@ static void scic_sds_controller_transition_to_ready( { struct isci_host *ihost = scic_to_ihost(scic); - if (scic->state_machine.current_state_id == - SCI_BASE_CONTROLLER_STATE_STARTING) { + if (scic->sm.current_state_id == SCIC_STARTING) { /* * We move into the ready state, because some of the phys/ports * may be up and operational. */ - sci_base_state_machine_change_state(&scic->state_machine, - SCI_BASE_CONTROLLER_STATE_READY); + sci_change_state(&scic->sm, SCIC_READY); isci_host_start_complete(ihost, status); } @@ -912,18 +909,18 @@ static bool is_phy_starting(struct scic_sds_phy *sci_phy) { enum scic_sds_phy_states state; - state = sci_phy->state_machine.current_state_id; + state = sci_phy->sm.current_state_id; switch (state) { - case SCI_BASE_PHY_STATE_STARTING: - case SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL: - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN: - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF: - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER: - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER: - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN: - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN: - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF: - case SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL: + case SCI_PHY_STARTING: + case SCI_PHY_SUB_INITIAL: + case SCI_PHY_SUB_AWAIT_SAS_SPEED_EN: + case SCI_PHY_SUB_AWAIT_IAF_UF: + case SCI_PHY_SUB_AWAIT_SAS_POWER: + case SCI_PHY_SUB_AWAIT_SATA_POWER: + case SCI_PHY_SUB_AWAIT_SATA_PHY_EN: + case SCI_PHY_SUB_AWAIT_SATA_SPEED_EN: + case SCI_PHY_SUB_AWAIT_SIG_FIS_UF: + case SCI_PHY_SUB_FINAL: return true; default: return false; @@ -957,7 +954,7 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro for (index = 0; index < SCI_MAX_PHYS; index++) { sci_phy = &ihost->phys[index].sci; - state = sci_phy->state_machine.current_state_id; + state = sci_phy->sm.current_state_id; if (!phy_get_non_dummy_port(sci_phy)) continue; @@ -968,12 +965,9 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro * - have an indication of a connected device and it has * finished the link training process. */ - if ((sci_phy->is_in_link_training == false && - state == SCI_BASE_PHY_STATE_INITIAL) || - (sci_phy->is_in_link_training == false && - state == SCI_BASE_PHY_STATE_STOPPED) || - (sci_phy->is_in_link_training == true && - is_phy_starting(sci_phy))) { + if ((sci_phy->is_in_link_training == false && state == SCI_PHY_INITIAL) || + (sci_phy->is_in_link_training == false && state == SCI_PHY_STOPPED) || + (sci_phy->is_in_link_training == true && is_phy_starting(sci_phy))) { is_controller_start_complete = false; break; } @@ -1059,8 +1053,7 @@ static enum sci_status scic_controller_start(struct scic_sds_controller *scic, enum sci_status result; u16 index; - if (scic->state_machine.current_state_id != - SCI_BASE_CONTROLLER_STATE_INITIALIZED) { + if (scic->sm.current_state_id != SCIC_INITIALIZED) { dev_warn(scic_to_dev(scic), "SCIC Controller start operation requested in " "invalid state\n"); @@ -1108,8 +1101,7 @@ static enum sci_status scic_controller_start(struct scic_sds_controller *scic, sci_mod_timer(&scic->timer, timeout); - sci_base_state_machine_change_state(&scic->state_machine, - SCI_BASE_CONTROLLER_STATE_STARTING); + sci_change_state(&scic->sm, SCIC_STARTING); return SCI_SUCCESS; } @@ -1279,8 +1271,7 @@ static void isci_host_completion_routine(unsigned long data) static enum sci_status scic_controller_stop(struct scic_sds_controller *scic, u32 timeout) { - if (scic->state_machine.current_state_id != - SCI_BASE_CONTROLLER_STATE_READY) { + if (scic->sm.current_state_id != SCIC_READY) { dev_warn(scic_to_dev(scic), "SCIC Controller stop operation requested in " "invalid state\n"); @@ -1288,8 +1279,7 @@ static enum sci_status scic_controller_stop(struct scic_sds_controller *scic, } sci_mod_timer(&scic->timer, timeout); - sci_base_state_machine_change_state(&scic->state_machine, - SCI_BASE_CONTROLLER_STATE_STOPPING); + sci_change_state(&scic->sm, SCIC_STOPPING); return SCI_SUCCESS; } @@ -1307,17 +1297,16 @@ static enum sci_status scic_controller_stop(struct scic_sds_controller *scic, */ static enum sci_status scic_controller_reset(struct scic_sds_controller *scic) { - switch (scic->state_machine.current_state_id) { - case SCI_BASE_CONTROLLER_STATE_RESET: - case SCI_BASE_CONTROLLER_STATE_READY: - case SCI_BASE_CONTROLLER_STATE_STOPPED: - case SCI_BASE_CONTROLLER_STATE_FAILED: + switch (scic->sm.current_state_id) { + case SCIC_RESET: + case SCIC_READY: + case SCIC_STOPPED: + case SCIC_FAILED: /* * The reset operation is not a graceful cleanup, just * perform the state transition. */ - sci_base_state_machine_change_state(&scic->state_machine, - SCI_BASE_CONTROLLER_STATE_RESETTING); + sci_change_state(&scic->sm, SCIC_RESETTING); return SCI_SUCCESS; default: dev_warn(scic_to_dev(scic), @@ -1416,15 +1405,14 @@ static void isci_user_parameters_get( static void scic_sds_controller_initial_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_controller *scic = container_of(sm, typeof(*scic), state_machine); + struct scic_sds_controller *scic = container_of(sm, typeof(*scic), sm); - sci_base_state_machine_change_state(&scic->state_machine, - SCI_BASE_CONTROLLER_STATE_RESET); + sci_change_state(&scic->sm, SCIC_RESET); } static inline void scic_sds_controller_starting_state_exit(struct sci_base_state_machine *sm) { - struct scic_sds_controller *scic = container_of(sm, typeof(*scic), state_machine); + struct scic_sds_controller *scic = container_of(sm, typeof(*scic), sm); sci_del_timer(&scic->timer); } @@ -1551,7 +1539,7 @@ static enum sci_status scic_controller_set_interrupt_coalescence( static void scic_sds_controller_ready_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_controller *scic = container_of(sm, typeof(*scic), state_machine); + struct scic_sds_controller *scic = container_of(sm, typeof(*scic), sm); /* set the default interrupt coalescence number and timeout value. */ scic_controller_set_interrupt_coalescence(scic, 0x10, 250); @@ -1559,7 +1547,7 @@ static void scic_sds_controller_ready_state_enter(struct sci_base_state_machine static void scic_sds_controller_ready_state_exit(struct sci_base_state_machine *sm) { - struct scic_sds_controller *scic = container_of(sm, typeof(*scic), state_machine); + struct scic_sds_controller *scic = container_of(sm, typeof(*scic), sm); /* disable interrupt coalescence. */ scic_controller_set_interrupt_coalescence(scic, 0, 0); @@ -1650,7 +1638,7 @@ static enum sci_status scic_sds_controller_stop_devices(struct scic_sds_controll static void scic_sds_controller_stopping_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_controller *scic = container_of(sm, typeof(*scic), state_machine); + struct scic_sds_controller *scic = container_of(sm, typeof(*scic), sm); /* Stop all of the components for this controller */ scic_sds_controller_stop_phys(scic); @@ -1660,7 +1648,7 @@ static void scic_sds_controller_stopping_state_enter(struct sci_base_state_machi static void scic_sds_controller_stopping_state_exit(struct sci_base_state_machine *sm) { - struct scic_sds_controller *scic = container_of(sm, typeof(*scic), state_machine); + struct scic_sds_controller *scic = container_of(sm, typeof(*scic), sm); sci_del_timer(&scic->timer); } @@ -1691,36 +1679,35 @@ static void scic_sds_controller_reset_hardware(struct scic_sds_controller *scic) static void scic_sds_controller_resetting_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_controller *scic = container_of(sm, typeof(*scic), state_machine); + struct scic_sds_controller *scic = container_of(sm, typeof(*scic), sm); scic_sds_controller_reset_hardware(scic); - sci_base_state_machine_change_state(&scic->state_machine, - SCI_BASE_CONTROLLER_STATE_RESET); + sci_change_state(&scic->sm, SCIC_RESET); } static const struct sci_base_state scic_sds_controller_state_table[] = { - [SCI_BASE_CONTROLLER_STATE_INITIAL] = { + [SCIC_INITIAL] = { .enter_state = scic_sds_controller_initial_state_enter, }, - [SCI_BASE_CONTROLLER_STATE_RESET] = {}, - [SCI_BASE_CONTROLLER_STATE_INITIALIZING] = {}, - [SCI_BASE_CONTROLLER_STATE_INITIALIZED] = {}, - [SCI_BASE_CONTROLLER_STATE_STARTING] = { + [SCIC_RESET] = {}, + [SCIC_INITIALIZING] = {}, + [SCIC_INITIALIZED] = {}, + [SCIC_STARTING] = { .exit_state = scic_sds_controller_starting_state_exit, }, - [SCI_BASE_CONTROLLER_STATE_READY] = { + [SCIC_READY] = { .enter_state = scic_sds_controller_ready_state_enter, .exit_state = scic_sds_controller_ready_state_exit, }, - [SCI_BASE_CONTROLLER_STATE_RESETTING] = { + [SCIC_RESETTING] = { .enter_state = scic_sds_controller_resetting_state_enter, }, - [SCI_BASE_CONTROLLER_STATE_STOPPING] = { + [SCIC_STOPPING] = { .enter_state = scic_sds_controller_stopping_state_enter, .exit_state = scic_sds_controller_stopping_state_exit, }, - [SCI_BASE_CONTROLLER_STATE_STOPPED] = {}, - [SCI_BASE_CONTROLLER_STATE_FAILED] = {} + [SCIC_STOPPED] = {}, + [SCIC_FAILED] = {} }; static void scic_sds_controller_set_default_config_parameters(struct scic_sds_controller *scic) @@ -1774,7 +1761,7 @@ static void controller_timeout(unsigned long data) struct sci_timer *tmr = (struct sci_timer *)data; struct scic_sds_controller *scic = container_of(tmr, typeof(*scic), timer); struct isci_host *ihost = scic_to_ihost(scic); - struct sci_base_state_machine *sm = &scic->state_machine; + struct sci_base_state_machine *sm = &scic->sm; unsigned long flags; spin_lock_irqsave(&ihost->scic_lock, flags); @@ -1782,10 +1769,10 @@ static void controller_timeout(unsigned long data) if (tmr->cancel) goto done; - if (sm->current_state_id == SCI_BASE_CONTROLLER_STATE_STARTING) + if (sm->current_state_id == SCIC_STARTING) scic_sds_controller_transition_to_ready(scic, SCI_FAILURE_TIMEOUT); - else if (sm->current_state_id == SCI_BASE_CONTROLLER_STATE_STOPPING) { - sci_base_state_machine_change_state(sm, SCI_BASE_CONTROLLER_STATE_FAILED); + else if (sm->current_state_id == SCIC_STOPPING) { + sci_change_state(sm, SCIC_FAILED); isci_host_stop_complete(ihost, SCI_FAILURE_TIMEOUT); } else /* / @todo Now what do we want to do in this case? */ dev_err(scic_to_dev(scic), @@ -1820,11 +1807,11 @@ static enum sci_status scic_controller_construct(struct scic_sds_controller *sci struct isci_host *ihost = scic_to_ihost(scic); u8 i; - sci_base_state_machine_construct(&scic->state_machine, + sci_base_state_machine_construct(&scic->sm, scic_sds_controller_state_table, - SCI_BASE_CONTROLLER_STATE_INITIAL); + SCIC_INITIAL); - sci_base_state_machine_start(&scic->state_machine); + sci_base_state_machine_start(&scic->sm); scic->scu_registers = scu_base; scic->smu_registers = smu_base; @@ -1899,11 +1886,11 @@ int scic_oem_parameters_validate(struct scic_sds_oem_params *oem) static enum sci_status scic_oem_parameters_set(struct scic_sds_controller *scic, union scic_oem_parameters *scic_parms) { - u32 state = scic->state_machine.current_state_id; + u32 state = scic->sm.current_state_id; - if (state == SCI_BASE_CONTROLLER_STATE_RESET || - state == SCI_BASE_CONTROLLER_STATE_INITIALIZING || - state == SCI_BASE_CONTROLLER_STATE_INITIALIZED) { + if (state == SCIC_RESET || + state == SCIC_INITIALIZING || + state == SCIC_INITIALIZED) { if (scic_oem_parameters_validate(&scic_parms->sds1)) return SCI_FAILURE_INVALID_PARAMETER_VALUE; @@ -2168,10 +2155,8 @@ static enum sci_status scic_controller_set_mode(struct scic_sds_controller *scic { enum sci_status status = SCI_SUCCESS; - if ((scic->state_machine.current_state_id == - SCI_BASE_CONTROLLER_STATE_INITIALIZING) || - (scic->state_machine.current_state_id == - SCI_BASE_CONTROLLER_STATE_INITIALIZED)) { + if ((scic->sm.current_state_id == SCIC_INITIALIZING) || + (scic->sm.current_state_id == SCIC_INITIALIZED)) { switch (operating_mode) { case SCI_MODE_SPEED: scic->remote_node_entries = SCI_MAX_REMOTE_DEVICES; @@ -2216,20 +2201,19 @@ static void scic_sds_controller_initialize_power_control(struct scic_sds_control static enum sci_status scic_controller_initialize(struct scic_sds_controller *scic) { - struct sci_base_state_machine *sm = &scic->state_machine; + struct sci_base_state_machine *sm = &scic->sm; enum sci_status result = SCI_SUCCESS; struct isci_host *ihost = scic_to_ihost(scic); u32 index, state; - if (scic->state_machine.current_state_id != - SCI_BASE_CONTROLLER_STATE_RESET) { + if (scic->sm.current_state_id != SCIC_RESET) { dev_warn(scic_to_dev(scic), "SCIC Controller initialize operation requested " "in invalid state\n"); return SCI_FAILURE_INVALID_STATE; } - sci_base_state_machine_change_state(sm, SCI_BASE_CONTROLLER_STATE_INITIALIZING); + sci_change_state(sm, SCIC_INITIALIZING); sci_init_timer(&scic->phy_timer, phy_startup_timeout); @@ -2374,10 +2358,10 @@ static enum sci_status scic_controller_initialize(struct scic_sds_controller *sc /* Advance the controller state machine */ if (result == SCI_SUCCESS) - state = SCI_BASE_CONTROLLER_STATE_INITIALIZED; + state = SCIC_INITIALIZED; else - state = SCI_BASE_CONTROLLER_STATE_FAILED; - sci_base_state_machine_change_state(sm, state); + state = SCIC_FAILED; + sci_change_state(sm, state); return result; } @@ -2386,11 +2370,11 @@ static enum sci_status scic_user_parameters_set( struct scic_sds_controller *scic, union scic_user_parameters *scic_parms) { - u32 state = scic->state_machine.current_state_id; + u32 state = scic->sm.current_state_id; - if (state == SCI_BASE_CONTROLLER_STATE_RESET || - state == SCI_BASE_CONTROLLER_STATE_INITIALIZING || - state == SCI_BASE_CONTROLLER_STATE_INITIALIZED) { + if (state == SCIC_RESET || + state == SCIC_INITIALIZING || + state == SCIC_INITIALIZED) { u16 index; /* @@ -2612,15 +2596,15 @@ int isci_host_init(struct isci_host *isci_host) void scic_sds_controller_link_up(struct scic_sds_controller *scic, struct scic_sds_port *port, struct scic_sds_phy *phy) { - switch (scic->state_machine.current_state_id) { - case SCI_BASE_CONTROLLER_STATE_STARTING: + switch (scic->sm.current_state_id) { + case SCIC_STARTING: sci_del_timer(&scic->phy_timer); scic->phy_startup_timer_pending = false; scic->port_agent.link_up_handler(scic, &scic->port_agent, port, phy); scic_sds_controller_start_next_phy(scic); break; - case SCI_BASE_CONTROLLER_STATE_READY: + case SCIC_READY: scic->port_agent.link_up_handler(scic, &scic->port_agent, port, phy); break; @@ -2628,16 +2612,16 @@ void scic_sds_controller_link_up(struct scic_sds_controller *scic, dev_dbg(scic_to_dev(scic), "%s: SCIC Controller linkup event from phy %d in " "unexpected state %d\n", __func__, phy->phy_index, - scic->state_machine.current_state_id); + scic->sm.current_state_id); } } void scic_sds_controller_link_down(struct scic_sds_controller *scic, struct scic_sds_port *port, struct scic_sds_phy *phy) { - switch (scic->state_machine.current_state_id) { - case SCI_BASE_CONTROLLER_STATE_STARTING: - case SCI_BASE_CONTROLLER_STATE_READY: + switch (scic->sm.current_state_id) { + case SCIC_STARTING: + case SCIC_READY: scic->port_agent.link_down_handler(scic, &scic->port_agent, port, phy); break; @@ -2647,7 +2631,7 @@ void scic_sds_controller_link_down(struct scic_sds_controller *scic, "unexpected state %d\n", __func__, phy->phy_index, - scic->state_machine.current_state_id); + scic->sm.current_state_id); } } @@ -2663,8 +2647,7 @@ static bool scic_sds_controller_has_remote_devices_stopping( for (index = 0; index < controller->remote_node_entries; index++) { if ((controller->device_table[index] != NULL) && - (controller->device_table[index]->state_machine.current_state_id - == SCI_BASE_REMOTE_DEVICE_STATE_STOPPING)) + (controller->device_table[index]->sm.current_state_id == SCI_DEV_STOPPING)) return true; } @@ -2678,19 +2661,17 @@ static bool scic_sds_controller_has_remote_devices_stopping( void scic_sds_controller_remote_device_stopped(struct scic_sds_controller *scic, struct scic_sds_remote_device *sci_dev) { - if (scic->state_machine.current_state_id != - SCI_BASE_CONTROLLER_STATE_STOPPING) { + if (scic->sm.current_state_id != SCIC_STOPPING) { dev_dbg(scic_to_dev(scic), "SCIC Controller 0x%p remote device stopped event " "from device 0x%p in unexpected state %d\n", scic, sci_dev, - scic->state_machine.current_state_id); + scic->sm.current_state_id); return; } if (!scic_sds_controller_has_remote_devices_stopping(scic)) { - sci_base_state_machine_change_state(&scic->state_machine, - SCI_BASE_CONTROLLER_STATE_STOPPED); + sci_change_state(&scic->sm, SCIC_STOPPED); } } @@ -2948,8 +2929,7 @@ enum sci_status scic_controller_start_io( { enum sci_status status; - if (scic->state_machine.current_state_id != - SCI_BASE_CONTROLLER_STATE_READY) { + if (scic->sm.current_state_id != SCIC_READY) { dev_warn(scic_to_dev(scic), "invalid state to start I/O"); return SCI_FAILURE_INVALID_STATE; } @@ -2986,8 +2966,7 @@ enum sci_status scic_controller_terminate_request( { enum sci_status status; - if (scic->state_machine.current_state_id != - SCI_BASE_CONTROLLER_STATE_READY) { + if (scic->sm.current_state_id != SCIC_READY) { dev_warn(scic_to_dev(scic), "invalid state to terminate request\n"); return SCI_FAILURE_INVALID_STATE; @@ -3037,11 +3016,11 @@ enum sci_status scic_controller_complete_io( enum sci_status status; u16 index; - switch (scic->state_machine.current_state_id) { - case SCI_BASE_CONTROLLER_STATE_STOPPING: + switch (scic->sm.current_state_id) { + case SCIC_STOPPING: /* XXX: Implement this function */ return SCI_FAILURE; - case SCI_BASE_CONTROLLER_STATE_READY: + case SCIC_READY: status = scic_sds_remote_device_complete_io(scic, rdev, request); if (status != SCI_SUCCESS) return status; @@ -3060,8 +3039,7 @@ enum sci_status scic_controller_continue_io(struct scic_sds_request *sci_req) { struct scic_sds_controller *scic = sci_req->owning_controller; - if (scic->state_machine.current_state_id != - SCI_BASE_CONTROLLER_STATE_READY) { + if (scic->sm.current_state_id != SCIC_READY) { dev_warn(scic_to_dev(scic), "invalid state to continue I/O"); return SCI_FAILURE_INVALID_STATE; } @@ -3107,8 +3085,7 @@ enum sci_task_status scic_controller_start_task( { enum sci_status status; - if (scic->state_machine.current_state_id != - SCI_BASE_CONTROLLER_STATE_READY) { + if (scic->sm.current_state_id != SCIC_READY) { dev_warn(scic_to_dev(scic), "%s: SCIC Controller starting task from invalid " "state\n", diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index 4ce39e1803f..be09765ee1d 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -134,7 +134,7 @@ struct scic_sds_controller { * This field contains the information for the base controller state * machine. */ - struct sci_base_state_machine state_machine; + struct sci_base_state_machine sm; /** * Timer for controller start/stop operations. @@ -359,7 +359,7 @@ enum scic_sds_controller_states { /** * Simply the initial state for the base controller state machine. */ - SCI_BASE_CONTROLLER_STATE_INITIAL = 0, + SCIC_INITIAL = 0, /** * This state indicates that the controller is reset. The memory for @@ -368,7 +368,7 @@ enum scic_sds_controller_states { * This state is entered from the INITIAL state. * This state is entered from the RESETTING state. */ - SCI_BASE_CONTROLLER_STATE_RESET, + SCIC_RESET, /** * This state is typically an action state that indicates the controller @@ -376,28 +376,28 @@ enum scic_sds_controller_states { * are permitted. * This state is entered from the RESET state. */ - SCI_BASE_CONTROLLER_STATE_INITIALIZING, + SCIC_INITIALIZING, /** * This state indicates that the controller has been successfully * initialized. In this state no new IO operations are permitted. * This state is entered from the INITIALIZING state. */ - SCI_BASE_CONTROLLER_STATE_INITIALIZED, + SCIC_INITIALIZED, /** * This state indicates the the controller is in the process of becoming * ready (i.e. starting). In this state no new IO operations are permitted. * This state is entered from the INITIALIZED state. */ - SCI_BASE_CONTROLLER_STATE_STARTING, + SCIC_STARTING, /** * This state indicates the controller is now ready. Thus, the user * is able to perform IO operations on the controller. * This state is entered from the STARTING state. */ - SCI_BASE_CONTROLLER_STATE_READY, + SCIC_READY, /** * This state is typically an action state that indicates the controller @@ -408,7 +408,7 @@ enum scic_sds_controller_states { * This state is entered from the FAILED state. * This state is entered from the STOPPED state. */ - SCI_BASE_CONTROLLER_STATE_RESETTING, + SCIC_RESETTING, /** * This state indicates that the controller is in the process of stopping. @@ -416,14 +416,14 @@ enum scic_sds_controller_states { * operations are allowed to complete. * This state is entered from the READY state. */ - SCI_BASE_CONTROLLER_STATE_STOPPING, + SCIC_STOPPING, /** * This state indicates that the controller has successfully been stopped. * In this state no new IO operations are permitted. * This state is entered from the STOPPING state. */ - SCI_BASE_CONTROLLER_STATE_STOPPED, + SCIC_STOPPED, /** * This state indicates that the controller could not successfully be @@ -433,10 +433,7 @@ enum scic_sds_controller_states { * This state is entered from the STOPPING state. * This state is entered from the RESETTING state. */ - SCI_BASE_CONTROLLER_STATE_FAILED, - - SCI_BASE_CONTROLLER_MAX_STATES - + SCIC_FAILED, }; diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c index fc196e389ff..9de21c71935 100644 --- a/drivers/scsi/isci/phy.c +++ b/drivers/scsi/isci/phy.c @@ -249,8 +249,7 @@ scic_sds_phy_link_layer_initialization(struct scic_sds_phy *sci_phy, writel(0x1F4, &sci_phy->link_layer_registers->link_layer_hang_detection_timeout); /* We can exit the initial state to the stopped state */ - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCI_BASE_PHY_STATE_STOPPED); + sci_change_state(&sci_phy->sm, SCI_PHY_STOPPED); return SCI_SUCCESS; } @@ -273,8 +272,7 @@ static void phy_sata_timeout(unsigned long data) __func__, sci_phy); - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCI_BASE_PHY_STATE_STARTING); + sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); done: spin_unlock_irqrestore(&ihost->scic_lock, flags); } @@ -342,8 +340,7 @@ enum sci_status scic_sds_phy_initialize( /* * There is nothing that needs to be done in this state just * transition to the stopped state. */ - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCI_BASE_PHY_STATE_STOPPED); + sci_change_state(&sci_phy->sm, SCI_PHY_STOPPED); return SCI_SUCCESS; } @@ -436,34 +433,33 @@ void scic_sds_phy_get_protocols(struct scic_sds_phy *sci_phy, enum sci_status scic_sds_phy_start(struct scic_sds_phy *sci_phy) { - enum scic_sds_phy_states state = sci_phy->state_machine.current_state_id; + enum scic_sds_phy_states state = sci_phy->sm.current_state_id; - if (state != SCI_BASE_PHY_STATE_STOPPED) { + if (state != SCI_PHY_STOPPED) { dev_dbg(sciphy_to_dev(sci_phy), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCI_BASE_PHY_STATE_STARTING); + sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); return SCI_SUCCESS; } enum sci_status scic_sds_phy_stop(struct scic_sds_phy *sci_phy) { - enum scic_sds_phy_states state = sci_phy->state_machine.current_state_id; + enum scic_sds_phy_states state = sci_phy->sm.current_state_id; switch (state) { - case SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL: - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN: - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN: - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER: - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER: - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN: - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN: - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF: - case SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL: - case SCI_BASE_PHY_STATE_READY: + case SCI_PHY_SUB_INITIAL: + case SCI_PHY_SUB_AWAIT_OSSP_EN: + case SCI_PHY_SUB_AWAIT_SAS_SPEED_EN: + case SCI_PHY_SUB_AWAIT_SAS_POWER: + case SCI_PHY_SUB_AWAIT_SATA_POWER: + case SCI_PHY_SUB_AWAIT_SATA_PHY_EN: + case SCI_PHY_SUB_AWAIT_SATA_SPEED_EN: + case SCI_PHY_SUB_AWAIT_SIG_FIS_UF: + case SCI_PHY_SUB_FINAL: + case SCI_PHY_READY: break; default: dev_dbg(sciphy_to_dev(sci_phy), @@ -471,32 +467,30 @@ enum sci_status scic_sds_phy_stop(struct scic_sds_phy *sci_phy) return SCI_FAILURE_INVALID_STATE; } - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCI_BASE_PHY_STATE_STOPPED); + sci_change_state(&sci_phy->sm, SCI_PHY_STOPPED); return SCI_SUCCESS; } enum sci_status scic_sds_phy_reset(struct scic_sds_phy *sci_phy) { - enum scic_sds_phy_states state = sci_phy->state_machine.current_state_id; + enum scic_sds_phy_states state = sci_phy->sm.current_state_id; - if (state != SCI_BASE_PHY_STATE_READY) { + if (state != SCI_PHY_READY) { dev_dbg(sciphy_to_dev(sci_phy), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCI_BASE_PHY_STATE_RESETTING); + sci_change_state(&sci_phy->sm, SCI_PHY_RESETTING); return SCI_SUCCESS; } enum sci_status scic_sds_phy_consume_power_handler(struct scic_sds_phy *sci_phy) { - enum scic_sds_phy_states state = sci_phy->state_machine.current_state_id; + enum scic_sds_phy_states state = sci_phy->sm.current_state_id; switch (state) { - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER: { + case SCI_PHY_SUB_AWAIT_SAS_POWER: { u32 enable_spinup; enable_spinup = readl(&sci_phy->link_layer_registers->notify_enable_spinup_control); @@ -504,12 +498,11 @@ enum sci_status scic_sds_phy_consume_power_handler(struct scic_sds_phy *sci_phy) writel(enable_spinup, &sci_phy->link_layer_registers->notify_enable_spinup_control); /* Change state to the final state this substate machine has run to completion */ - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL); + sci_change_state(&sci_phy->sm, SCI_PHY_SUB_FINAL); return SCI_SUCCESS; } - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER: { + case SCI_PHY_SUB_AWAIT_SATA_POWER: { u32 scu_sas_pcfg_value; /* Release the spinup hold state and reset the OOB state machine */ @@ -528,8 +521,7 @@ enum sci_status scic_sds_phy_consume_power_handler(struct scic_sds_phy *sci_phy) &sci_phy->link_layer_registers->phy_configuration); /* Change state to the final state this substate machine has run to completion */ - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN); + sci_change_state(&sci_phy->sm, SCI_PHY_SUB_AWAIT_SATA_PHY_EN); return SCI_SUCCESS; } @@ -566,10 +558,7 @@ static void scic_sds_phy_start_sas_link_training( writel(phy_control, &sci_phy->link_layer_registers->phy_configuration); - sci_base_state_machine_change_state( - &sci_phy->state_machine, - SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN - ); + sci_change_state(&sci_phy->sm, SCI_PHY_SUB_AWAIT_SAS_SPEED_EN); sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_SAS; } @@ -585,10 +574,7 @@ static void scic_sds_phy_start_sas_link_training( static void scic_sds_phy_start_sata_link_training( struct scic_sds_phy *sci_phy) { - sci_base_state_machine_change_state( - &sci_phy->state_machine, - SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER - ); + sci_change_state(&sci_phy->sm, SCI_PHY_SUB_AWAIT_SATA_POWER); sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_SATA; } @@ -611,17 +597,16 @@ static void scic_sds_phy_complete_link_training( { sci_phy->max_negotiated_speed = max_link_rate; - sci_base_state_machine_change_state(&sci_phy->state_machine, - next_state); + sci_change_state(&sci_phy->sm, next_state); } enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, u32 event_code) { - enum scic_sds_phy_states state = sci_phy->state_machine.current_state_id; + enum scic_sds_phy_states state = sci_phy->sm.current_state_id; switch (state) { - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN: + case SCI_PHY_SUB_AWAIT_OSSP_EN: switch (scu_get_event_code(event_code)) { case SCU_EVENT_SAS_PHY_DETECTED: scic_sds_phy_start_sas_link_training(sci_phy); @@ -640,7 +625,7 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, return SCI_FAILURE; } return SCI_SUCCESS; - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN: + case SCI_PHY_SUB_AWAIT_SAS_SPEED_EN: switch (scu_get_event_code(event_code)) { case SCU_EVENT_SAS_PHY_DETECTED: /* @@ -652,21 +637,21 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, scic_sds_phy_complete_link_training( sci_phy, SAS_LINK_RATE_1_5_GBPS, - SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF); + SCI_PHY_SUB_AWAIT_IAF_UF); break; case SCU_EVENT_SAS_30: case SCU_EVENT_SAS_30_SSC: scic_sds_phy_complete_link_training( sci_phy, SAS_LINK_RATE_3_0_GBPS, - SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF); + SCI_PHY_SUB_AWAIT_IAF_UF); break; case SCU_EVENT_SAS_60: case SCU_EVENT_SAS_60_SSC: scic_sds_phy_complete_link_training( sci_phy, SAS_LINK_RATE_6_0_GBPS, - SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF); + SCI_PHY_SUB_AWAIT_IAF_UF); break; case SCU_EVENT_SATA_SPINUP_HOLD: /* @@ -676,8 +661,7 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, break; case SCU_EVENT_LINK_FAILURE: /* Link failure change state back to the starting state */ - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCI_BASE_PHY_STATE_STARTING); + sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); break; default: dev_warn(sciphy_to_dev(sci_phy), @@ -689,7 +673,7 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, break; } return SCI_SUCCESS; - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF: + case SCI_PHY_SUB_AWAIT_IAF_UF: switch (scu_get_event_code(event_code)) { case SCU_EVENT_SAS_PHY_DETECTED: /* Backup the state machine */ @@ -706,8 +690,7 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, case SCU_EVENT_LINK_FAILURE: case SCU_EVENT_HARD_RESET_RECEIVED: /* Start the oob/sn state machine over again */ - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCI_BASE_PHY_STATE_STARTING); + sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); break; default: dev_warn(sciphy_to_dev(sci_phy), @@ -717,12 +700,11 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, return SCI_FAILURE; } return SCI_SUCCESS; - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER: + case SCI_PHY_SUB_AWAIT_SAS_POWER: switch (scu_get_event_code(event_code)) { case SCU_EVENT_LINK_FAILURE: /* Link failure change state back to the starting state */ - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCI_BASE_PHY_STATE_STARTING); + sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); break; default: dev_warn(sciphy_to_dev(sci_phy), @@ -733,12 +715,11 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, return SCI_FAILURE; } return SCI_SUCCESS; - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER: + case SCI_PHY_SUB_AWAIT_SATA_POWER: switch (scu_get_event_code(event_code)) { case SCU_EVENT_LINK_FAILURE: /* Link failure change state back to the starting state */ - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCI_BASE_PHY_STATE_STARTING); + sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); break; case SCU_EVENT_SATA_SPINUP_HOLD: /* These events are received every 10ms and are @@ -762,12 +743,11 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, return SCI_FAILURE; } return SCI_SUCCESS; - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN: + case SCI_PHY_SUB_AWAIT_SATA_PHY_EN: switch (scu_get_event_code(event_code)) { case SCU_EVENT_LINK_FAILURE: /* Link failure change state back to the starting state */ - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCI_BASE_PHY_STATE_STARTING); + sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); break; case SCU_EVENT_SATA_SPINUP_HOLD: /* These events might be received since we dont know how many may be in @@ -778,8 +758,7 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_SATA; /* We have received the SATA PHY notification change state */ - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN); + sci_change_state(&sci_phy->sm, SCI_PHY_SUB_AWAIT_SATA_SPEED_EN); break; case SCU_EVENT_SAS_PHY_DETECTED: /* There has been a change in the phy type before OOB/SN for the @@ -797,7 +776,7 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, return SCI_FAILURE;; } return SCI_SUCCESS; - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN: + case SCI_PHY_SUB_AWAIT_SATA_SPEED_EN: switch (scu_get_event_code(event_code)) { case SCU_EVENT_SATA_PHY_DETECTED: /* @@ -809,26 +788,25 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, scic_sds_phy_complete_link_training( sci_phy, SAS_LINK_RATE_1_5_GBPS, - SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF); + SCI_PHY_SUB_AWAIT_SIG_FIS_UF); break; case SCU_EVENT_SATA_30: case SCU_EVENT_SATA_30_SSC: scic_sds_phy_complete_link_training( sci_phy, SAS_LINK_RATE_3_0_GBPS, - SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF); + SCI_PHY_SUB_AWAIT_SIG_FIS_UF); break; case SCU_EVENT_SATA_60: case SCU_EVENT_SATA_60_SSC: scic_sds_phy_complete_link_training( sci_phy, SAS_LINK_RATE_6_0_GBPS, - SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF); + SCI_PHY_SUB_AWAIT_SIG_FIS_UF); break; case SCU_EVENT_LINK_FAILURE: /* Link failure change state back to the starting state */ - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCI_BASE_PHY_STATE_STARTING); + sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); break; case SCU_EVENT_SAS_PHY_DETECTED: /* @@ -846,18 +824,16 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, } return SCI_SUCCESS; - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF: + case SCI_PHY_SUB_AWAIT_SIG_FIS_UF: switch (scu_get_event_code(event_code)) { case SCU_EVENT_SATA_PHY_DETECTED: /* Backup the state machine */ - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN); + sci_change_state(&sci_phy->sm, SCI_PHY_SUB_AWAIT_SATA_SPEED_EN); break; case SCU_EVENT_LINK_FAILURE: /* Link failure change state back to the starting state */ - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCI_BASE_PHY_STATE_STARTING); + sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); break; default: @@ -870,12 +846,11 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, return SCI_FAILURE; } return SCI_SUCCESS; - case SCI_BASE_PHY_STATE_READY: + case SCI_PHY_READY: switch (scu_get_event_code(event_code)) { case SCU_EVENT_LINK_FAILURE: /* Link failure change state back to the starting state */ - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCI_BASE_PHY_STATE_STARTING); + sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); break; case SCU_EVENT_BROADCAST_CHANGE: /* Broadcast change received. Notify the port. */ @@ -892,12 +867,11 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, return SCI_FAILURE_INVALID_STATE; } return SCI_SUCCESS; - case SCI_BASE_PHY_STATE_RESETTING: + case SCI_PHY_RESETTING: switch (scu_get_event_code(event_code)) { case SCU_EVENT_HARD_RESET_TRANSMITTED: /* Link failure change state back to the starting state */ - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCI_BASE_PHY_STATE_STARTING); + sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); break; default: dev_warn(sciphy_to_dev(sci_phy), @@ -919,12 +893,12 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, enum sci_status scic_sds_phy_frame_handler(struct scic_sds_phy *sci_phy, u32 frame_index) { - enum scic_sds_phy_states state = sci_phy->state_machine.current_state_id; + enum scic_sds_phy_states state = sci_phy->sm.current_state_id; struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller; enum sci_status result; switch (state) { - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF: { + case SCI_PHY_SUB_AWAIT_IAF_UF: { u32 *frame_words; struct sas_identify_frame iaf; struct isci_phy *iphy = sci_phy_to_iphy(sci_phy); @@ -946,15 +920,14 @@ enum sci_status scic_sds_phy_frame_handler(struct scic_sds_phy *sci_phy, * state since there are no power requirements for * expander phys. */ - state = SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL; + state = SCI_PHY_SUB_FINAL; } else { /* We got the IAF we can now go to the await spinup * semaphore state */ - state = SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER; + state = SCI_PHY_SUB_AWAIT_SAS_POWER; } - sci_base_state_machine_change_state(&sci_phy->state_machine, - state); + sci_change_state(&sci_phy->sm, state); result = SCI_SUCCESS; } else dev_warn(sciphy_to_dev(sci_phy), @@ -965,7 +938,7 @@ enum sci_status scic_sds_phy_frame_handler(struct scic_sds_phy *sci_phy, scic_sds_controller_release_frame(scic, frame_index); return result; } - case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF: { + case SCI_PHY_SUB_AWAIT_SIG_FIS_UF: { struct dev_to_host_fis *frame_header; u32 *fis_frame_data; struct isci_phy *iphy = sci_phy_to_iphy(sci_phy); @@ -989,8 +962,7 @@ enum sci_status scic_sds_phy_frame_handler(struct scic_sds_phy *sci_phy, fis_frame_data); /* got IAF we can now go to the await spinup semaphore state */ - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL); + sci_change_state(&sci_phy->sm, SCI_PHY_SUB_FINAL); result = SCI_SUCCESS; } else @@ -1014,16 +986,15 @@ enum sci_status scic_sds_phy_frame_handler(struct scic_sds_phy *sci_phy, static void scic_sds_phy_starting_initial_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine); + struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); /* This is just an temporary state go off to the starting state */ - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN); + sci_change_state(&sci_phy->sm, SCI_PHY_SUB_AWAIT_OSSP_EN); } static void scic_sds_phy_starting_await_sas_power_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine); + struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller; scic_sds_controller_power_control_queue_insert(scic, sci_phy); @@ -1031,7 +1002,7 @@ static void scic_sds_phy_starting_await_sas_power_substate_enter(struct sci_base static void scic_sds_phy_starting_await_sas_power_substate_exit(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine); + struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller; scic_sds_controller_power_control_queue_remove(scic, sci_phy); @@ -1039,7 +1010,7 @@ static void scic_sds_phy_starting_await_sas_power_substate_exit(struct sci_base_ static void scic_sds_phy_starting_await_sata_power_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine); + struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller; scic_sds_controller_power_control_queue_insert(scic, sci_phy); @@ -1047,7 +1018,7 @@ static void scic_sds_phy_starting_await_sata_power_substate_enter(struct sci_bas static void scic_sds_phy_starting_await_sata_power_substate_exit(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine); + struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller; scic_sds_controller_power_control_queue_remove(scic, sci_phy); @@ -1055,35 +1026,35 @@ static void scic_sds_phy_starting_await_sata_power_substate_exit(struct sci_base static void scic_sds_phy_starting_await_sata_phy_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine); + struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); sci_mod_timer(&sci_phy->sata_timer, SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT); } static void scic_sds_phy_starting_await_sata_phy_substate_exit(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine); + struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); sci_del_timer(&sci_phy->sata_timer); } static void scic_sds_phy_starting_await_sata_speed_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine); + struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); sci_mod_timer(&sci_phy->sata_timer, SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT); } static void scic_sds_phy_starting_await_sata_speed_substate_exit(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine); + struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); sci_del_timer(&sci_phy->sata_timer); } static void scic_sds_phy_starting_await_sig_fis_uf_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine); + struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); if (scic_sds_port_link_detected(sci_phy->owning_port, sci_phy)) { @@ -1103,20 +1074,19 @@ static void scic_sds_phy_starting_await_sig_fis_uf_substate_enter(struct sci_bas static void scic_sds_phy_starting_await_sig_fis_uf_substate_exit(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine); + struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); sci_del_timer(&sci_phy->sata_timer); } static void scic_sds_phy_starting_final_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine); + struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); /* State machine has run to completion so exit out and change * the base state machine to the ready state */ - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCI_BASE_PHY_STATE_READY); + sci_change_state(&sci_phy->sm, SCI_PHY_READY); } /** @@ -1202,7 +1172,7 @@ static void scu_link_layer_tx_hard_reset( static void scic_sds_phy_stopped_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine); + struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); /* * @todo We need to get to the controller to place this PE in a @@ -1212,7 +1182,7 @@ static void scic_sds_phy_stopped_state_enter(struct sci_base_state_machine *sm) scu_link_layer_stop_protocol_engine(sci_phy); - if (sci_phy->state_machine.previous_state_id != SCI_BASE_PHY_STATE_INITIAL) + if (sci_phy->sm.previous_state_id != SCI_PHY_INITIAL) scic_sds_controller_link_down(scic_sds_phy_get_controller(sci_phy), phy_get_non_dummy_port(sci_phy), sci_phy); @@ -1220,7 +1190,7 @@ static void scic_sds_phy_stopped_state_enter(struct sci_base_state_machine *sm) static void scic_sds_phy_starting_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine); + struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); scu_link_layer_stop_protocol_engine(sci_phy); scu_link_layer_start_oob(sci_phy); @@ -1229,18 +1199,17 @@ static void scic_sds_phy_starting_state_enter(struct sci_base_state_machine *sm) sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_UNKNOWN; sci_phy->bcn_received_while_port_unassigned = false; - if (sci_phy->state_machine.previous_state_id == SCI_BASE_PHY_STATE_READY) + if (sci_phy->sm.previous_state_id == SCI_PHY_READY) scic_sds_controller_link_down(scic_sds_phy_get_controller(sci_phy), phy_get_non_dummy_port(sci_phy), sci_phy); - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL); + sci_change_state(&sci_phy->sm, SCI_PHY_SUB_INITIAL); } static void scic_sds_phy_ready_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine); + struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); scic_sds_controller_link_up(scic_sds_phy_get_controller(sci_phy), phy_get_non_dummy_port(sci_phy), @@ -1250,14 +1219,14 @@ static void scic_sds_phy_ready_state_enter(struct sci_base_state_machine *sm) static void scic_sds_phy_ready_state_exit(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine); + struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); scic_sds_phy_suspend(sci_phy); } static void scic_sds_phy_resetting_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), state_machine); + struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); /* The phy is being reset, therefore deactivate it from the port. In * the resetting state we don't notify the user regarding link up and @@ -1271,66 +1240,65 @@ static void scic_sds_phy_resetting_state_enter(struct sci_base_state_machine *sm /* The SCU does not need to have a discrete reset state so * just go back to the starting state. */ - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCI_BASE_PHY_STATE_STARTING); + sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); } } static const struct sci_base_state scic_sds_phy_state_table[] = { - [SCI_BASE_PHY_STATE_INITIAL] = { }, - [SCI_BASE_PHY_STATE_STOPPED] = { + [SCI_PHY_INITIAL] = { }, + [SCI_PHY_STOPPED] = { .enter_state = scic_sds_phy_stopped_state_enter, }, - [SCI_BASE_PHY_STATE_STARTING] = { + [SCI_PHY_STARTING] = { .enter_state = scic_sds_phy_starting_state_enter, }, - [SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL] = { + [SCI_PHY_SUB_INITIAL] = { .enter_state = scic_sds_phy_starting_initial_substate_enter, }, - [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN] = { }, - [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN] = { }, - [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF] = { }, - [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER] = { + [SCI_PHY_SUB_AWAIT_OSSP_EN] = { }, + [SCI_PHY_SUB_AWAIT_SAS_SPEED_EN] = { }, + [SCI_PHY_SUB_AWAIT_IAF_UF] = { }, + [SCI_PHY_SUB_AWAIT_SAS_POWER] = { .enter_state = scic_sds_phy_starting_await_sas_power_substate_enter, .exit_state = scic_sds_phy_starting_await_sas_power_substate_exit, }, - [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER] = { + [SCI_PHY_SUB_AWAIT_SATA_POWER] = { .enter_state = scic_sds_phy_starting_await_sata_power_substate_enter, .exit_state = scic_sds_phy_starting_await_sata_power_substate_exit }, - [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN] = { + [SCI_PHY_SUB_AWAIT_SATA_PHY_EN] = { .enter_state = scic_sds_phy_starting_await_sata_phy_substate_enter, .exit_state = scic_sds_phy_starting_await_sata_phy_substate_exit }, - [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN] = { + [SCI_PHY_SUB_AWAIT_SATA_SPEED_EN] = { .enter_state = scic_sds_phy_starting_await_sata_speed_substate_enter, .exit_state = scic_sds_phy_starting_await_sata_speed_substate_exit }, - [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF] = { + [SCI_PHY_SUB_AWAIT_SIG_FIS_UF] = { .enter_state = scic_sds_phy_starting_await_sig_fis_uf_substate_enter, .exit_state = scic_sds_phy_starting_await_sig_fis_uf_substate_exit }, - [SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL] = { + [SCI_PHY_SUB_FINAL] = { .enter_state = scic_sds_phy_starting_final_substate_enter, }, - [SCI_BASE_PHY_STATE_READY] = { + [SCI_PHY_READY] = { .enter_state = scic_sds_phy_ready_state_enter, .exit_state = scic_sds_phy_ready_state_exit, }, - [SCI_BASE_PHY_STATE_RESETTING] = { + [SCI_PHY_RESETTING] = { .enter_state = scic_sds_phy_resetting_state_enter, }, - [SCI_BASE_PHY_STATE_FINAL] = { }, + [SCI_PHY_FINAL] = { }, }; void scic_sds_phy_construct(struct scic_sds_phy *sci_phy, struct scic_sds_port *owning_port, u8 phy_index) { - sci_base_state_machine_construct(&sci_phy->state_machine, + sci_base_state_machine_construct(&sci_phy->sm, scic_sds_phy_state_table, - SCI_BASE_PHY_STATE_INITIAL); + SCI_PHY_INITIAL); - sci_base_state_machine_start(&sci_phy->state_machine); + sci_base_state_machine_start(&sci_phy->sm); /* Copy the rest of the input data to our locals */ sci_phy->owning_port = owning_port; diff --git a/drivers/scsi/isci/phy.h b/drivers/scsi/isci/phy.h index da3f0f1d56d..9d21d2754db 100644 --- a/drivers/scsi/isci/phy.h +++ b/drivers/scsi/isci/phy.h @@ -94,7 +94,7 @@ struct scic_sds_phy { /** * This field contains the information for the base phy state machine. */ - struct sci_base_state_machine state_machine; + struct sci_base_state_machine sm; /** * This field specifies the port object that owns/contains this phy. @@ -410,7 +410,7 @@ enum scic_sds_phy_states { /** * Simply the initial state for the base domain state machine. */ - SCI_BASE_PHY_STATE_INITIAL, + SCI_PHY_INITIAL, /** * This state indicates that the phy has successfully been stopped. @@ -420,7 +420,7 @@ enum scic_sds_phy_states { * This state is entered from the READY state. * This state is entered from the RESETTING state. */ - SCI_BASE_PHY_STATE_STOPPED, + SCI_PHY_STOPPED, /** * This state indicates that the phy is in the process of becomming @@ -429,57 +429,57 @@ enum scic_sds_phy_states { * This state is entered from the READY state. * This state is entered from the RESETTING state. */ - SCI_BASE_PHY_STATE_STARTING, + SCI_PHY_STARTING, /** * Initial state */ - SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL, + SCI_PHY_SUB_INITIAL, /** * Wait state for the hardware OSSP event type notification */ - SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN, + SCI_PHY_SUB_AWAIT_OSSP_EN, /** * Wait state for the PHY speed notification */ - SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN, + SCI_PHY_SUB_AWAIT_SAS_SPEED_EN, /** * Wait state for the IAF Unsolicited frame notification */ - SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF, + SCI_PHY_SUB_AWAIT_IAF_UF, /** * Wait state for the request to consume power */ - SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER, + SCI_PHY_SUB_AWAIT_SAS_POWER, /** * Wait state for request to consume power */ - SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER, + SCI_PHY_SUB_AWAIT_SATA_POWER, /** * Wait state for the SATA PHY notification */ - SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN, + SCI_PHY_SUB_AWAIT_SATA_PHY_EN, /** * Wait for the SATA PHY speed notification */ - SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN, + SCI_PHY_SUB_AWAIT_SATA_SPEED_EN, /** * Wait state for the SIGNATURE FIS unsolicited frame notification */ - SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF, + SCI_PHY_SUB_AWAIT_SIG_FIS_UF, /** * Exit state for this state machine */ - SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL, + SCI_PHY_SUB_FINAL, /** * This state indicates the the phy is now ready. Thus, the user @@ -487,19 +487,19 @@ enum scic_sds_phy_states { * is currently part of a valid port. * This state is entered from the STARTING state. */ - SCI_BASE_PHY_STATE_READY, + SCI_PHY_READY, /** * This state indicates that the phy is in the process of being reset. * In this state no new IO operations are permitted on this phy. * This state is entered from the READY state. */ - SCI_BASE_PHY_STATE_RESETTING, + SCI_PHY_RESETTING, /** * Simply the final state for the base phy state machine. */ - SCI_BASE_PHY_STATE_FINAL, + SCI_PHY_FINAL, }; /** diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 8d88ca21a51..6370b93bd6a 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -807,10 +807,10 @@ static void scic_sds_port_invalid_link_up(struct scic_sds_port *sci_port, static bool is_port_ready_state(enum scic_sds_port_states state) { switch (state) { - case SCI_BASE_PORT_STATE_READY: - case SCIC_SDS_PORT_READY_SUBSTATE_WAITING: - case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL: - case SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING: + case SCI_PORT_READY: + case SCI_PORT_SUB_WAITING: + case SCI_PORT_SUB_OPERATIONAL: + case SCI_PORT_SUB_CONFIGURING: return true; default: return false; @@ -821,13 +821,13 @@ static bool is_port_ready_state(enum scic_sds_port_states state) static void port_state_machine_change(struct scic_sds_port *sci_port, enum scic_sds_port_states state) { - struct sci_base_state_machine *sm = &sci_port->state_machine; + struct sci_base_state_machine *sm = &sci_port->sm; enum scic_sds_port_states old_state = sm->current_state_id; if (is_port_ready_state(old_state) && !is_port_ready_state(state)) sci_port->ready_exit = true; - sci_base_state_machine_change_state(sm, state); + sci_change_state(sm, state); sci_port->ready_exit = false; } @@ -862,11 +862,11 @@ static void scic_sds_port_general_link_up_handler(struct scic_sds_port *sci_port if ((phy_sas_address.high == port_sas_address.high && phy_sas_address.low == port_sas_address.low) || sci_port->active_phy_mask == 0) { - struct sci_base_state_machine *sm = &sci_port->state_machine; + struct sci_base_state_machine *sm = &sci_port->sm; scic_sds_port_activate_phy(sci_port, sci_phy, do_notify_user); - if (sm->current_state_id == SCI_BASE_PORT_STATE_RESETTING) - port_state_machine_change(sci_port, SCI_BASE_PORT_STATE_READY); + if (sm->current_state_id == SCI_PORT_RESETTING) + port_state_machine_change(sci_port, SCI_PORT_READY); } else scic_sds_port_invalid_link_up(sci_port, sci_phy); } @@ -938,14 +938,14 @@ static void port_timeout(unsigned long data) if (tmr->cancel) goto done; - current_state = sci_base_state_machine_get_state(&sci_port->state_machine); + current_state = sci_port->sm.current_state_id; - if (current_state == SCI_BASE_PORT_STATE_RESETTING) { + if (current_state == SCI_PORT_RESETTING) { /* if the port is still in the resetting state then the timeout * fired before the reset completed. */ - port_state_machine_change(sci_port, SCI_BASE_PORT_STATE_FAILED); - } else if (current_state == SCI_BASE_PORT_STATE_STOPPED) { + port_state_machine_change(sci_port, SCI_PORT_FAILED); + } else if (current_state == SCI_PORT_STOPPED) { /* if the port is stopped then the start request failed In this * case stay in the stopped state. */ @@ -953,7 +953,7 @@ static void port_timeout(unsigned long data) "%s: SCIC Port 0x%p failed to stop before tiemout.\n", __func__, sci_port); - } else if (current_state == SCI_BASE_PORT_STATE_STOPPING) { + } else if (current_state == SCI_PORT_STOPPING) { /* if the port is still stopping then the stop has not completed */ isci_port_stop_complete(sci_port->owning_controller, sci_port, @@ -1139,7 +1139,7 @@ scic_sds_port_resume_port_task_scheduler(struct scic_sds_port *port) static void scic_sds_port_ready_substate_waiting_enter(struct sci_base_state_machine *sm) { - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine); + struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); scic_sds_port_suspend_port_task_scheduler(sci_port); @@ -1148,14 +1148,14 @@ static void scic_sds_port_ready_substate_waiting_enter(struct sci_base_state_mac if (sci_port->active_phy_mask != 0) { /* At least one of the phys on the port is ready */ port_state_machine_change(sci_port, - SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL); + SCI_PORT_SUB_OPERATIONAL); } } static void scic_sds_port_ready_substate_operational_enter(struct sci_base_state_machine *sm) { u32 index; - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine); + struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); struct scic_sds_controller *scic = sci_port->owning_controller; struct isci_host *ihost = scic_to_ihost(scic); struct isci_port *iport = sci_port_to_iport(sci_port); @@ -1211,12 +1211,12 @@ static void scic_sds_port_invalidate_dummy_remote_node(struct scic_sds_port *sci * @object: This is the object which is cast to a struct scic_sds_port object. * * This method will perform the actions required by the struct scic_sds_port on - * exiting the SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL. This function reports + * exiting the SCI_PORT_SUB_OPERATIONAL. This function reports * the port not ready and suspends the port task scheduler. none */ static void scic_sds_port_ready_substate_operational_exit(struct sci_base_state_machine *sm) { - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine); + struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); struct scic_sds_controller *scic = sci_port->owning_controller; struct isci_host *ihost = scic_to_ihost(scic); struct isci_port *iport = sci_port_to_iport(sci_port); @@ -1236,7 +1236,7 @@ static void scic_sds_port_ready_substate_operational_exit(struct sci_base_state_ static void scic_sds_port_ready_substate_configuring_enter(struct sci_base_state_machine *sm) { - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine); + struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); struct scic_sds_controller *scic = sci_port->owning_controller; struct isci_host *ihost = scic_to_ihost(scic); struct isci_port *iport = sci_port_to_iport(sci_port); @@ -1245,15 +1245,15 @@ static void scic_sds_port_ready_substate_configuring_enter(struct sci_base_state isci_port_not_ready(ihost, iport); port_state_machine_change(sci_port, - SCIC_SDS_PORT_READY_SUBSTATE_WAITING); + SCI_PORT_SUB_WAITING); } else if (sci_port->started_request_count == 0) port_state_machine_change(sci_port, - SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL); + SCI_PORT_SUB_OPERATIONAL); } static void scic_sds_port_ready_substate_configuring_exit(struct sci_base_state_machine *sm) { - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine); + struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); scic_sds_port_suspend_port_task_scheduler(sci_port); if (sci_port->ready_exit) @@ -1267,8 +1267,8 @@ enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port) enum scic_sds_port_states state; u32 phy_mask; - state = sci_port->state_machine.current_state_id; - if (state != SCI_BASE_PORT_STATE_STOPPED) { + state = sci_port->sm.current_state_id; + if (state != SCI_PORT_STOPPED) { dev_warn(sciport_to_dev(sci_port), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; @@ -1315,7 +1315,7 @@ enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port) */ if (scic_sds_port_is_phy_mask_valid(sci_port, phy_mask) == true) { port_state_machine_change(sci_port, - SCI_BASE_PORT_STATE_READY); + SCI_PORT_READY); return SCI_SUCCESS; } @@ -1332,16 +1332,16 @@ enum sci_status scic_sds_port_stop(struct scic_sds_port *sci_port) { enum scic_sds_port_states state; - state = sci_port->state_machine.current_state_id; + state = sci_port->sm.current_state_id; switch (state) { - case SCI_BASE_PORT_STATE_STOPPED: + case SCI_PORT_STOPPED: return SCI_SUCCESS; - case SCIC_SDS_PORT_READY_SUBSTATE_WAITING: - case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL: - case SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING: - case SCI_BASE_PORT_STATE_RESETTING: + case SCI_PORT_SUB_WAITING: + case SCI_PORT_SUB_OPERATIONAL: + case SCI_PORT_SUB_CONFIGURING: + case SCI_PORT_RESETTING: port_state_machine_change(sci_port, - SCI_BASE_PORT_STATE_STOPPING); + SCI_PORT_STOPPING); return SCI_SUCCESS; default: dev_warn(sciport_to_dev(sci_port), @@ -1357,8 +1357,8 @@ static enum sci_status scic_port_hard_reset(struct scic_sds_port *sci_port, u32 enum scic_sds_port_states state; u32 phy_index; - state = sci_port->state_machine.current_state_id; - if (state != SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL) { + state = sci_port->sm.current_state_id; + if (state != SCI_PORT_SUB_OPERATIONAL) { dev_warn(sciport_to_dev(sci_port), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; @@ -1389,7 +1389,7 @@ static enum sci_status scic_port_hard_reset(struct scic_sds_port *sci_port, u32 sci_port->not_ready_reason = SCIC_PORT_NOT_READY_HARD_RESET_REQUESTED; port_state_machine_change(sci_port, - SCI_BASE_PORT_STATE_RESETTING); + SCI_PORT_RESETTING); return SCI_SUCCESS; } @@ -1408,9 +1408,9 @@ enum sci_status scic_sds_port_add_phy(struct scic_sds_port *sci_port, enum sci_status status; enum scic_sds_port_states state; - state = sci_port->state_machine.current_state_id; + state = sci_port->sm.current_state_id; switch (state) { - case SCI_BASE_PORT_STATE_STOPPED: { + case SCI_PORT_STOPPED: { struct sci_sas_address port_sas_address; /* Read the port assigned SAS Address if there is one */ @@ -1430,8 +1430,8 @@ enum sci_status scic_sds_port_add_phy(struct scic_sds_port *sci_port, } return scic_sds_port_set_phy(sci_port, sci_phy); } - case SCIC_SDS_PORT_READY_SUBSTATE_WAITING: - case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL: + case SCI_PORT_SUB_WAITING: + case SCI_PORT_SUB_OPERATIONAL: status = scic_sds_port_set_phy(sci_port, sci_phy); if (status != SCI_SUCCESS) @@ -1439,10 +1439,10 @@ enum sci_status scic_sds_port_add_phy(struct scic_sds_port *sci_port, scic_sds_port_general_link_up_handler(sci_port, sci_phy, true); sci_port->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; - port_state_machine_change(sci_port, SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); + port_state_machine_change(sci_port, SCI_PORT_SUB_CONFIGURING); return status; - case SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING: + case SCI_PORT_SUB_CONFIGURING: status = scic_sds_port_set_phy(sci_port, sci_phy); if (status != SCI_SUCCESS) @@ -1453,7 +1453,7 @@ enum sci_status scic_sds_port_add_phy(struct scic_sds_port *sci_port, * the port. */ port_state_machine_change(sci_port, - SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); + SCI_PORT_SUB_CONFIGURING); return SCI_SUCCESS; default: dev_warn(sciport_to_dev(sci_port), @@ -1477,12 +1477,12 @@ enum sci_status scic_sds_port_remove_phy(struct scic_sds_port *sci_port, enum sci_status status; enum scic_sds_port_states state; - state = sci_port->state_machine.current_state_id; + state = sci_port->sm.current_state_id; switch (state) { - case SCI_BASE_PORT_STATE_STOPPED: + case SCI_PORT_STOPPED: return scic_sds_port_clear_phy(sci_port, sci_phy); - case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL: + case SCI_PORT_SUB_OPERATIONAL: status = scic_sds_port_clear_phy(sci_port, sci_phy); if (status != SCI_SUCCESS) return status; @@ -1490,9 +1490,9 @@ enum sci_status scic_sds_port_remove_phy(struct scic_sds_port *sci_port, scic_sds_port_deactivate_phy(sci_port, sci_phy, true); sci_port->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; port_state_machine_change(sci_port, - SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); + SCI_PORT_SUB_CONFIGURING); return SCI_SUCCESS; - case SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING: + case SCI_PORT_SUB_CONFIGURING: status = scic_sds_port_clear_phy(sci_port, sci_phy); if (status != SCI_SUCCESS) @@ -1503,7 +1503,7 @@ enum sci_status scic_sds_port_remove_phy(struct scic_sds_port *sci_port, * the port */ port_state_machine_change(sci_port, - SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING); + SCI_PORT_SUB_CONFIGURING); return SCI_SUCCESS; default: dev_warn(sciport_to_dev(sci_port), @@ -1517,21 +1517,21 @@ enum sci_status scic_sds_port_link_up(struct scic_sds_port *sci_port, { enum scic_sds_port_states state; - state = sci_port->state_machine.current_state_id; + state = sci_port->sm.current_state_id; switch (state) { - case SCIC_SDS_PORT_READY_SUBSTATE_WAITING: + case SCI_PORT_SUB_WAITING: /* Since this is the first phy going link up for the port we * can just enable it and continue */ scic_sds_port_activate_phy(sci_port, sci_phy, true); port_state_machine_change(sci_port, - SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL); + SCI_PORT_SUB_OPERATIONAL); return SCI_SUCCESS; - case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL: + case SCI_PORT_SUB_OPERATIONAL: scic_sds_port_general_link_up_handler(sci_port, sci_phy, true); return SCI_SUCCESS; - case SCI_BASE_PORT_STATE_RESETTING: + case SCI_PORT_RESETTING: /* TODO We should make sure that the phy that has gone * link up is the same one on which we sent the reset. It is * possible that the phy on which we sent the reset is not the @@ -1560,9 +1560,9 @@ enum sci_status scic_sds_port_link_down(struct scic_sds_port *sci_port, { enum scic_sds_port_states state; - state = sci_port->state_machine.current_state_id; + state = sci_port->sm.current_state_id; switch (state) { - case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL: + case SCI_PORT_SUB_OPERATIONAL: scic_sds_port_deactivate_phy(sci_port, sci_phy, true); /* If there are no active phys left in the port, then @@ -1571,9 +1571,9 @@ enum sci_status scic_sds_port_link_down(struct scic_sds_port *sci_port, */ if (sci_port->active_phy_mask == 0) port_state_machine_change(sci_port, - SCIC_SDS_PORT_READY_SUBSTATE_WAITING); + SCI_PORT_SUB_WAITING); return SCI_SUCCESS; - case SCI_BASE_PORT_STATE_RESETTING: + case SCI_PORT_RESETTING: /* In the resetting state we don't notify the user regarding * link up and link down notifications. */ scic_sds_port_deactivate_phy(sci_port, sci_phy, false); @@ -1591,11 +1591,11 @@ enum sci_status scic_sds_port_start_io(struct scic_sds_port *sci_port, { enum scic_sds_port_states state; - state = sci_port->state_machine.current_state_id; + state = sci_port->sm.current_state_id; switch (state) { - case SCIC_SDS_PORT_READY_SUBSTATE_WAITING: + case SCI_PORT_SUB_WAITING: return SCI_FAILURE_INVALID_STATE; - case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL: + case SCI_PORT_SUB_OPERATIONAL: sci_port->started_request_count++; return SCI_SUCCESS; default: @@ -1611,31 +1611,31 @@ enum sci_status scic_sds_port_complete_io(struct scic_sds_port *sci_port, { enum scic_sds_port_states state; - state = sci_port->state_machine.current_state_id; + state = sci_port->sm.current_state_id; switch (state) { - case SCI_BASE_PORT_STATE_STOPPED: + case SCI_PORT_STOPPED: dev_warn(sciport_to_dev(sci_port), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; - case SCI_BASE_PORT_STATE_STOPPING: + case SCI_PORT_STOPPING: scic_sds_port_decrement_request_count(sci_port); if (sci_port->started_request_count == 0) port_state_machine_change(sci_port, - SCI_BASE_PORT_STATE_STOPPED); + SCI_PORT_STOPPED); break; - case SCI_BASE_PORT_STATE_READY: - case SCI_BASE_PORT_STATE_RESETTING: - case SCI_BASE_PORT_STATE_FAILED: - case SCIC_SDS_PORT_READY_SUBSTATE_WAITING: - case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL: + case SCI_PORT_READY: + case SCI_PORT_RESETTING: + case SCI_PORT_FAILED: + case SCI_PORT_SUB_WAITING: + case SCI_PORT_SUB_OPERATIONAL: scic_sds_port_decrement_request_count(sci_port); break; - case SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING: + case SCI_PORT_SUB_CONFIGURING: scic_sds_port_decrement_request_count(sci_port); if (sci_port->started_request_count == 0) { port_state_machine_change(sci_port, - SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL); + SCI_PORT_SUB_OPERATIONAL); } break; } @@ -1707,9 +1707,9 @@ static void scic_sds_port_post_dummy_remote_node(struct scic_sds_port *sci_port) static void scic_sds_port_stopped_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine); + struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); - if (sci_port->state_machine.previous_state_id == SCI_BASE_PORT_STATE_STOPPING) { + if (sci_port->sm.previous_state_id == SCI_PORT_STOPPING) { /* * If we enter this state becasuse of a request to stop * the port then we want to disable the hardwares port @@ -1720,7 +1720,7 @@ static void scic_sds_port_stopped_state_enter(struct sci_base_state_machine *sm) static void scic_sds_port_stopped_state_exit(struct sci_base_state_machine *sm) { - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine); + struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); /* Enable and suspend the port task scheduler */ scic_sds_port_enable_port_task_scheduler(sci_port); @@ -1728,14 +1728,14 @@ static void scic_sds_port_stopped_state_exit(struct sci_base_state_machine *sm) static void scic_sds_port_ready_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine); + struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); struct scic_sds_controller *scic = sci_port->owning_controller; struct isci_host *ihost = scic_to_ihost(scic); struct isci_port *iport = sci_port_to_iport(sci_port); u32 prev_state; - prev_state = sci_port->state_machine.previous_state_id; - if (prev_state == SCI_BASE_PORT_STATE_RESETTING) + prev_state = sci_port->sm.previous_state_id; + if (prev_state == SCI_PORT_RESETTING) isci_port_hard_reset_complete(iport, SCI_SUCCESS); else isci_port_not_ready(ihost, iport); @@ -1745,19 +1745,19 @@ static void scic_sds_port_ready_state_enter(struct sci_base_state_machine *sm) /* Start the ready substate machine */ port_state_machine_change(sci_port, - SCIC_SDS_PORT_READY_SUBSTATE_WAITING); + SCI_PORT_SUB_WAITING); } static void scic_sds_port_resetting_state_exit(struct sci_base_state_machine *sm) { - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine); + struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); sci_del_timer(&sci_port->timer); } static void scic_sds_port_stopping_state_exit(struct sci_base_state_machine *sm) { - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine); + struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); sci_del_timer(&sci_port->timer); @@ -1766,7 +1766,7 @@ static void scic_sds_port_stopping_state_exit(struct sci_base_state_machine *sm) static void scic_sds_port_failed_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), state_machine); + struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); struct isci_port *iport = sci_port_to_iport(sci_port); isci_port_hard_reset_complete(iport, SCI_FAILURE_TIMEOUT); @@ -1775,31 +1775,31 @@ static void scic_sds_port_failed_state_enter(struct sci_base_state_machine *sm) /* --------------------------------------------------------------------------- */ static const struct sci_base_state scic_sds_port_state_table[] = { - [SCI_BASE_PORT_STATE_STOPPED] = { + [SCI_PORT_STOPPED] = { .enter_state = scic_sds_port_stopped_state_enter, .exit_state = scic_sds_port_stopped_state_exit }, - [SCI_BASE_PORT_STATE_STOPPING] = { + [SCI_PORT_STOPPING] = { .exit_state = scic_sds_port_stopping_state_exit }, - [SCI_BASE_PORT_STATE_READY] = { + [SCI_PORT_READY] = { .enter_state = scic_sds_port_ready_state_enter, }, - [SCIC_SDS_PORT_READY_SUBSTATE_WAITING] = { + [SCI_PORT_SUB_WAITING] = { .enter_state = scic_sds_port_ready_substate_waiting_enter, }, - [SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL] = { + [SCI_PORT_SUB_OPERATIONAL] = { .enter_state = scic_sds_port_ready_substate_operational_enter, .exit_state = scic_sds_port_ready_substate_operational_exit }, - [SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING] = { + [SCI_PORT_SUB_CONFIGURING] = { .enter_state = scic_sds_port_ready_substate_configuring_enter, .exit_state = scic_sds_port_ready_substate_configuring_exit }, - [SCI_BASE_PORT_STATE_RESETTING] = { + [SCI_PORT_RESETTING] = { .exit_state = scic_sds_port_resetting_state_exit }, - [SCI_BASE_PORT_STATE_FAILED] = { + [SCI_PORT_FAILED] = { .enter_state = scic_sds_port_failed_state_enter, } }; @@ -1807,11 +1807,11 @@ static const struct sci_base_state scic_sds_port_state_table[] = { void scic_sds_port_construct(struct scic_sds_port *sci_port, u8 index, struct scic_sds_controller *scic) { - sci_base_state_machine_construct(&sci_port->state_machine, + sci_base_state_machine_construct(&sci_port->sm, scic_sds_port_state_table, - SCI_BASE_PORT_STATE_STOPPED); + SCI_PORT_STOPPED); - sci_base_state_machine_start(&sci_port->state_machine); + sci_base_state_machine_start(&sci_port->sm); sci_port->logical_port_index = SCIC_SDS_DUMMY_PORT; sci_port->physical_port_index = index; diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index 9a6912855fc..fee6d80df76 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -84,7 +84,7 @@ struct scic_sds_port { /** * This field contains the information for the base port state machine. */ - struct sci_base_state_machine state_machine; + struct sci_base_state_machine sm; bool ready_exit; @@ -224,7 +224,7 @@ enum scic_sds_port_states { * In this state no new IO operations are permitted. * This state is entered from the STOPPING state. */ - SCI_BASE_PORT_STATE_STOPPED, + SCI_PORT_STOPPED, /** * This state indicates that the port is in the process of stopping. @@ -232,33 +232,33 @@ enum scic_sds_port_states { * operations are allowed to complete. * This state is entered from the READY state. */ - SCI_BASE_PORT_STATE_STOPPING, + SCI_PORT_STOPPING, /** * This state indicates the port is now ready. Thus, the user is * able to perform IO operations on this port. * This state is entered from the STARTING state. */ - SCI_BASE_PORT_STATE_READY, + SCI_PORT_READY, /** * The substate where the port is started and ready but has no * active phys. */ - SCIC_SDS_PORT_READY_SUBSTATE_WAITING, + SCI_PORT_SUB_WAITING, /** * The substate where the port is started and ready and there is * at least one phy operational. */ - SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL, + SCI_PORT_SUB_OPERATIONAL, /** * The substate where the port is started and there was an * add/remove phy event. This state is only used in Automatic * Port Configuration Mode (APC) */ - SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING, + SCI_PORT_SUB_CONFIGURING, /** * This state indicates the port is in the process of performing a hard @@ -266,14 +266,14 @@ enum scic_sds_port_states { * port. * This state is entered from the READY state. */ - SCI_BASE_PORT_STATE_RESETTING, + SCI_PORT_RESETTING, /** * This state indicates the port has failed a reset request. This state * is entered when a port reset request times out. * This state is entered from the RESETTING state. */ - SCI_BASE_PORT_STATE_FAILED, + SCI_PORT_FAILED, }; diff --git a/drivers/scsi/isci/port_config.c b/drivers/scsi/isci/port_config.c index 38401f644e1..fcb8f030b7a 100644 --- a/drivers/scsi/isci/port_config.c +++ b/drivers/scsi/isci/port_config.c @@ -661,13 +661,13 @@ static void scic_sds_apc_agent_link_up(struct scic_sds_controller *scic, scic_sds_apc_agent_configure_ports(scic, port_agent, sci_phy, true); } else { /* the phy is already the part of the port */ - u32 port_state = sci_port->state_machine.current_state_id; + u32 port_state = sci_port->sm.current_state_id; /* if the PORT'S state is resetting then the link up is from * port hard reset in this case, we need to tell the port * that link up is recieved */ - BUG_ON(port_state != SCI_BASE_PORT_STATE_RESETTING); + BUG_ON(port_state != SCI_PORT_RESETTING); port_agent->phy_ready_mask |= 1 << phy_index; scic_sds_port_link_up(sci_port, sci_phy); } diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index 68b63b04be1..6c93f20f3dd 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -126,8 +126,7 @@ static void rnc_destruct_done(void *_dev) struct scic_sds_remote_device *sci_dev = _dev; BUG_ON(sci_dev->started_request_count != 0); - sci_base_state_machine_change_state(&sci_dev->state_machine, - SCI_BASE_REMOTE_DEVICE_STATE_STOPPED); + sci_change_state(&sci_dev->sm, SCI_DEV_STOPPED); } static enum sci_status scic_sds_remote_device_terminate_requests(struct scic_sds_remote_device *sci_dev) @@ -154,20 +153,20 @@ static enum sci_status scic_sds_remote_device_terminate_requests(struct scic_sds enum sci_status scic_remote_device_stop(struct scic_sds_remote_device *sci_dev, u32 timeout) { - struct sci_base_state_machine *sm = &sci_dev->state_machine; + struct sci_base_state_machine *sm = &sci_dev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; switch (state) { - case SCI_BASE_REMOTE_DEVICE_STATE_INITIAL: - case SCI_BASE_REMOTE_DEVICE_STATE_FAILED: - case SCI_BASE_REMOTE_DEVICE_STATE_FINAL: + case SCI_DEV_INITIAL: + case SCI_DEV_FAILED: + case SCI_DEV_FINAL: default: dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; - case SCI_BASE_REMOTE_DEVICE_STATE_STOPPED: + case SCI_DEV_STOPPED: return SCI_SUCCESS; - case SCI_BASE_REMOTE_DEVICE_STATE_STARTING: + case SCI_DEV_STARTING: /* device not started so there had better be no requests */ BUG_ON(sci_dev->started_request_count != 0); scic_sds_remote_node_context_destruct(&sci_dev->rnc, @@ -175,17 +174,17 @@ enum sci_status scic_remote_device_stop(struct scic_sds_remote_device *sci_dev, /* Transition to the stopping state and wait for the * remote node to complete being posted and invalidated. */ - sci_base_state_machine_change_state(sm, SCI_BASE_REMOTE_DEVICE_STATE_STOPPING); + sci_change_state(sm, SCI_DEV_STOPPING); return SCI_SUCCESS; - case SCI_BASE_REMOTE_DEVICE_STATE_READY: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET: - case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE: - case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD: - sci_base_state_machine_change_state(sm, SCI_BASE_REMOTE_DEVICE_STATE_STOPPING); + case SCI_DEV_READY: + case SCI_STP_DEV_IDLE: + case SCI_STP_DEV_CMD: + case SCI_STP_DEV_NCQ: + case SCI_STP_DEV_NCQ_ERROR: + case SCI_STP_DEV_AWAIT_RESET: + case SCI_SMP_DEV_IDLE: + case SCI_SMP_DEV_CMD: + sci_change_state(sm, SCI_DEV_STOPPING); if (sci_dev->started_request_count == 0) { scic_sds_remote_node_context_destruct(&sci_dev->rnc, rnc_destruct_done, sci_dev); @@ -193,70 +192,70 @@ enum sci_status scic_remote_device_stop(struct scic_sds_remote_device *sci_dev, } else return scic_sds_remote_device_terminate_requests(sci_dev); break; - case SCI_BASE_REMOTE_DEVICE_STATE_STOPPING: + case SCI_DEV_STOPPING: /* All requests should have been terminated, but if there is an * attempt to stop a device already in the stopping state, then * try again to terminate. */ return scic_sds_remote_device_terminate_requests(sci_dev); - case SCI_BASE_REMOTE_DEVICE_STATE_RESETTING: - sci_base_state_machine_change_state(sm, SCI_BASE_REMOTE_DEVICE_STATE_STOPPING); + case SCI_DEV_RESETTING: + sci_change_state(sm, SCI_DEV_STOPPING); return SCI_SUCCESS; } } enum sci_status scic_remote_device_reset(struct scic_sds_remote_device *sci_dev) { - struct sci_base_state_machine *sm = &sci_dev->state_machine; + struct sci_base_state_machine *sm = &sci_dev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; switch (state) { - case SCI_BASE_REMOTE_DEVICE_STATE_INITIAL: - case SCI_BASE_REMOTE_DEVICE_STATE_STOPPED: - case SCI_BASE_REMOTE_DEVICE_STATE_STARTING: - case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE: - case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD: - case SCI_BASE_REMOTE_DEVICE_STATE_STOPPING: - case SCI_BASE_REMOTE_DEVICE_STATE_FAILED: - case SCI_BASE_REMOTE_DEVICE_STATE_RESETTING: - case SCI_BASE_REMOTE_DEVICE_STATE_FINAL: + case SCI_DEV_INITIAL: + case SCI_DEV_STOPPED: + case SCI_DEV_STARTING: + case SCI_SMP_DEV_IDLE: + case SCI_SMP_DEV_CMD: + case SCI_DEV_STOPPING: + case SCI_DEV_FAILED: + case SCI_DEV_RESETTING: + case SCI_DEV_FINAL: default: dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; - case SCI_BASE_REMOTE_DEVICE_STATE_READY: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET: - sci_base_state_machine_change_state(sm, SCI_BASE_REMOTE_DEVICE_STATE_RESETTING); + case SCI_DEV_READY: + case SCI_STP_DEV_IDLE: + case SCI_STP_DEV_CMD: + case SCI_STP_DEV_NCQ: + case SCI_STP_DEV_NCQ_ERROR: + case SCI_STP_DEV_AWAIT_RESET: + sci_change_state(sm, SCI_DEV_RESETTING); return SCI_SUCCESS; } } enum sci_status scic_remote_device_reset_complete(struct scic_sds_remote_device *sci_dev) { - struct sci_base_state_machine *sm = &sci_dev->state_machine; + struct sci_base_state_machine *sm = &sci_dev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; - if (state != SCI_BASE_REMOTE_DEVICE_STATE_RESETTING) { + if (state != SCI_DEV_RESETTING) { dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } - sci_base_state_machine_change_state(sm, SCI_BASE_REMOTE_DEVICE_STATE_READY); + sci_change_state(sm, SCI_DEV_READY); return SCI_SUCCESS; } enum sci_status scic_sds_remote_device_suspend(struct scic_sds_remote_device *sci_dev, u32 suspend_type) { - struct sci_base_state_machine *sm = &sci_dev->state_machine; + struct sci_base_state_machine *sm = &sci_dev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; - if (state != SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD) { + if (state != SCI_STP_DEV_CMD) { dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; @@ -269,30 +268,30 @@ enum sci_status scic_sds_remote_device_suspend(struct scic_sds_remote_device *sc enum sci_status scic_sds_remote_device_frame_handler(struct scic_sds_remote_device *sci_dev, u32 frame_index) { - struct sci_base_state_machine *sm = &sci_dev->state_machine; + struct sci_base_state_machine *sm = &sci_dev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; struct scic_sds_controller *scic = sci_dev->owning_port->owning_controller; enum sci_status status; switch (state) { - case SCI_BASE_REMOTE_DEVICE_STATE_INITIAL: - case SCI_BASE_REMOTE_DEVICE_STATE_STOPPED: - case SCI_BASE_REMOTE_DEVICE_STATE_STARTING: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE: - case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE: - case SCI_BASE_REMOTE_DEVICE_STATE_FINAL: + case SCI_DEV_INITIAL: + case SCI_DEV_STOPPED: + case SCI_DEV_STARTING: + case SCI_STP_DEV_IDLE: + case SCI_SMP_DEV_IDLE: + case SCI_DEV_FINAL: default: dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n", __func__, state); /* Return the frame back to the controller */ scic_sds_controller_release_frame(scic, frame_index); return SCI_FAILURE_INVALID_STATE; - case SCI_BASE_REMOTE_DEVICE_STATE_READY: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET: - case SCI_BASE_REMOTE_DEVICE_STATE_STOPPING: - case SCI_BASE_REMOTE_DEVICE_STATE_FAILED: - case SCI_BASE_REMOTE_DEVICE_STATE_RESETTING: { + case SCI_DEV_READY: + case SCI_STP_DEV_NCQ_ERROR: + case SCI_STP_DEV_AWAIT_RESET: + case SCI_DEV_STOPPING: + case SCI_DEV_FAILED: + case SCI_DEV_RESETTING: { struct scic_sds_request *sci_req; struct ssp_frame_hdr hdr; void *frame_header; @@ -319,7 +318,7 @@ enum sci_status scic_sds_remote_device_frame_handler(struct scic_sds_remote_devi } break; } - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ: { + case SCI_STP_DEV_NCQ: { struct dev_to_host_fis *hdr; status = scic_sds_unsolicited_frame_control_get_header(&scic->uf_control, @@ -333,7 +332,7 @@ enum sci_status scic_sds_remote_device_frame_handler(struct scic_sds_remote_devi sci_dev->not_ready_reason = SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED; /* TODO Check sactive and complete associated IO if any. */ - sci_base_state_machine_change_state(sm, SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR); + sci_change_state(sm, SCI_STP_DEV_NCQ_ERROR); } else if (hdr->fis_type == FIS_REGD2H && (hdr->status & ATA_ERR)) { /* @@ -341,16 +340,15 @@ enum sci_status scic_sds_remote_device_frame_handler(struct scic_sds_remote_devi * Treat this like an SDB error FIS ready reason. */ sci_dev->not_ready_reason = SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED; - sci_base_state_machine_change_state(&sci_dev->state_machine, - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR); + sci_change_state(&sci_dev->sm, SCI_STP_DEV_NCQ_ERROR); } else status = SCI_FAILURE; scic_sds_controller_release_frame(scic, frame_index); break; } - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD: - case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD: + case SCI_STP_DEV_CMD: + case SCI_SMP_DEV_CMD: /* The device does not process any UF received from the hardware while * in this state. All unsolicited frames are forwarded to the io request * object. @@ -365,18 +363,18 @@ enum sci_status scic_sds_remote_device_frame_handler(struct scic_sds_remote_devi static bool is_remote_device_ready(struct scic_sds_remote_device *sci_dev) { - struct sci_base_state_machine *sm = &sci_dev->state_machine; + struct sci_base_state_machine *sm = &sci_dev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; switch (state) { - case SCI_BASE_REMOTE_DEVICE_STATE_READY: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET: - case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE: - case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD: + case SCI_DEV_READY: + case SCI_STP_DEV_IDLE: + case SCI_STP_DEV_CMD: + case SCI_STP_DEV_NCQ: + case SCI_STP_DEV_NCQ_ERROR: + case SCI_STP_DEV_AWAIT_RESET: + case SCI_SMP_DEV_IDLE: + case SCI_SMP_DEV_CMD: return true; default: return false; @@ -386,7 +384,7 @@ static bool is_remote_device_ready(struct scic_sds_remote_device *sci_dev) enum sci_status scic_sds_remote_device_event_handler(struct scic_sds_remote_device *sci_dev, u32 event_code) { - struct sci_base_state_machine *sm = &sci_dev->state_machine; + struct sci_base_state_machine *sm = &sci_dev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; enum sci_status status; @@ -429,7 +427,7 @@ enum sci_status scic_sds_remote_device_event_handler(struct scic_sds_remote_devi if (status != SCI_SUCCESS) return status; - if (state == SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE) { + if (state == SCI_STP_DEV_IDLE) { /* We pick up suspension events to handle specifically to this * state. We resume the RNC right away. @@ -459,26 +457,26 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic struct scic_sds_remote_device *sci_dev, struct scic_sds_request *sci_req) { - struct sci_base_state_machine *sm = &sci_dev->state_machine; + struct sci_base_state_machine *sm = &sci_dev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; struct scic_sds_port *sci_port = sci_dev->owning_port; struct isci_request *ireq = sci_req_to_ireq(sci_req); enum sci_status status; switch (state) { - case SCI_BASE_REMOTE_DEVICE_STATE_INITIAL: - case SCI_BASE_REMOTE_DEVICE_STATE_STOPPED: - case SCI_BASE_REMOTE_DEVICE_STATE_STARTING: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR: - case SCI_BASE_REMOTE_DEVICE_STATE_STOPPING: - case SCI_BASE_REMOTE_DEVICE_STATE_FAILED: - case SCI_BASE_REMOTE_DEVICE_STATE_RESETTING: - case SCI_BASE_REMOTE_DEVICE_STATE_FINAL: + case SCI_DEV_INITIAL: + case SCI_DEV_STOPPED: + case SCI_DEV_STARTING: + case SCI_STP_DEV_NCQ_ERROR: + case SCI_DEV_STOPPING: + case SCI_DEV_FAILED: + case SCI_DEV_RESETTING: + case SCI_DEV_FINAL: default: dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; - case SCI_BASE_REMOTE_DEVICE_STATE_READY: + case SCI_DEV_READY: /* attempt to start an io request for this device object. The remote * device object will issue the start request for the io and if * successful it will start the request for the port object then @@ -494,7 +492,7 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic status = scic_sds_request_start(sci_req); break; - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE: { + case SCI_STP_DEV_IDLE: { /* handle the start io operation for a sata device that is in * the command idle state. - Evalute the type of IO request to * be started - If its an NCQ request change to NCQ substate - @@ -519,15 +517,15 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic break; if (task->ata_task.use_ncq) - new_state = SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ; + new_state = SCI_STP_DEV_NCQ; else { sci_dev->working_request = sci_req; - new_state = SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD; + new_state = SCI_STP_DEV_CMD; } - sci_base_state_machine_change_state(sm, new_state); + sci_change_state(sm, new_state); break; } - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ: { + case SCI_STP_DEV_NCQ: { struct sas_task *task = isci_request_access_task(ireq); if (task->ata_task.use_ncq) { @@ -544,9 +542,9 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic return SCI_FAILURE_INVALID_STATE; break; } - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET: + case SCI_STP_DEV_AWAIT_RESET: return SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED; - case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE: + case SCI_SMP_DEV_IDLE: status = scic_sds_port_start_io(sci_port, sci_dev, sci_req); if (status != SCI_SUCCESS) return status; @@ -560,11 +558,10 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic break; sci_dev->working_request = sci_req; - sci_base_state_machine_change_state(&sci_dev->state_machine, - SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD); + sci_change_state(&sci_dev->sm, SCI_SMP_DEV_CMD); break; - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD: - case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD: + case SCI_STP_DEV_CMD: + case SCI_SMP_DEV_CMD: /* device is already handling a command it can not accept new commands * until this one is complete. */ @@ -597,31 +594,31 @@ enum sci_status scic_sds_remote_device_complete_io(struct scic_sds_controller *s struct scic_sds_remote_device *sci_dev, struct scic_sds_request *sci_req) { - struct sci_base_state_machine *sm = &sci_dev->state_machine; + struct sci_base_state_machine *sm = &sci_dev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; struct scic_sds_port *sci_port = sci_dev->owning_port; enum sci_status status; switch (state) { - case SCI_BASE_REMOTE_DEVICE_STATE_INITIAL: - case SCI_BASE_REMOTE_DEVICE_STATE_STOPPED: - case SCI_BASE_REMOTE_DEVICE_STATE_STARTING: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE: - case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE: - case SCI_BASE_REMOTE_DEVICE_STATE_FAILED: - case SCI_BASE_REMOTE_DEVICE_STATE_FINAL: + case SCI_DEV_INITIAL: + case SCI_DEV_STOPPED: + case SCI_DEV_STARTING: + case SCI_STP_DEV_IDLE: + case SCI_SMP_DEV_IDLE: + case SCI_DEV_FAILED: + case SCI_DEV_FINAL: default: dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; - case SCI_BASE_REMOTE_DEVICE_STATE_READY: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET: - case SCI_BASE_REMOTE_DEVICE_STATE_RESETTING: + case SCI_DEV_READY: + case SCI_STP_DEV_AWAIT_RESET: + case SCI_DEV_RESETTING: status = common_complete_io(sci_port, sci_dev, sci_req); break; - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR: + case SCI_STP_DEV_CMD: + case SCI_STP_DEV_NCQ: + case SCI_STP_DEV_NCQ_ERROR: status = common_complete_io(sci_port, sci_dev, sci_req); if (status != SCI_SUCCESS) break; @@ -632,17 +629,17 @@ enum sci_status scic_sds_remote_device_complete_io(struct scic_sds_controller *s * can reach RNC state handler, these IOs will be completed by RNC with * status of "DEVICE_RESET_REQUIRED", instead of "INVALID STATE". */ - sci_base_state_machine_change_state(sm, SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET); + sci_change_state(sm, SCI_STP_DEV_AWAIT_RESET); } else if (scic_sds_remote_device_get_request_count(sci_dev) == 0) - sci_base_state_machine_change_state(sm, SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE); + sci_change_state(sm, SCI_STP_DEV_IDLE); break; - case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD: + case SCI_SMP_DEV_CMD: status = common_complete_io(sci_port, sci_dev, sci_req); if (status != SCI_SUCCESS) break; - sci_base_state_machine_change_state(sm, SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE); + sci_change_state(sm, SCI_SMP_DEV_IDLE); break; - case SCI_BASE_REMOTE_DEVICE_STATE_STOPPING: + case SCI_DEV_STOPPING: status = common_complete_io(sci_port, sci_dev, sci_req); if (status != SCI_SUCCESS) break; @@ -676,30 +673,30 @@ enum sci_status scic_sds_remote_device_start_task(struct scic_sds_controller *sc struct scic_sds_remote_device *sci_dev, struct scic_sds_request *sci_req) { - struct sci_base_state_machine *sm = &sci_dev->state_machine; + struct sci_base_state_machine *sm = &sci_dev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; struct scic_sds_port *sci_port = sci_dev->owning_port; enum sci_status status; switch (state) { - case SCI_BASE_REMOTE_DEVICE_STATE_INITIAL: - case SCI_BASE_REMOTE_DEVICE_STATE_STOPPED: - case SCI_BASE_REMOTE_DEVICE_STATE_STARTING: - case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE: - case SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD: - case SCI_BASE_REMOTE_DEVICE_STATE_STOPPING: - case SCI_BASE_REMOTE_DEVICE_STATE_FAILED: - case SCI_BASE_REMOTE_DEVICE_STATE_RESETTING: - case SCI_BASE_REMOTE_DEVICE_STATE_FINAL: + case SCI_DEV_INITIAL: + case SCI_DEV_STOPPED: + case SCI_DEV_STARTING: + case SCI_SMP_DEV_IDLE: + case SCI_SMP_DEV_CMD: + case SCI_DEV_STOPPING: + case SCI_DEV_FAILED: + case SCI_DEV_RESETTING: + case SCI_DEV_FINAL: default: dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR: - case SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET: + case SCI_STP_DEV_IDLE: + case SCI_STP_DEV_CMD: + case SCI_STP_DEV_NCQ: + case SCI_STP_DEV_NCQ_ERROR: + case SCI_STP_DEV_AWAIT_RESET: status = scic_sds_port_start_io(sci_port, sci_dev, sci_req); if (status != SCI_SUCCESS) return status; @@ -717,7 +714,7 @@ enum sci_status scic_sds_remote_device_start_task(struct scic_sds_controller *sc * management request. */ sci_dev->working_request = sci_req; - sci_base_state_machine_change_state(sm, SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD); + sci_change_state(sm, SCI_STP_DEV_CMD); /* The remote node context must cleanup the TCi to NCQ mapping * table. The only way to do this correctly is to either write @@ -739,7 +736,7 @@ enum sci_status scic_sds_remote_device_start_task(struct scic_sds_controller *sc * post TC when RNC gets resumed. */ return SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS; - case SCI_BASE_REMOTE_DEVICE_STATE_READY: + case SCI_DEV_READY: status = scic_sds_port_start_io(sci_port, sci_dev, sci_req); if (status != SCI_SUCCESS) return status; @@ -790,8 +787,7 @@ static void remote_device_resume_done(void *_dev) return; /* go 'ready' if we are not already in a ready state */ - sci_base_state_machine_change_state(&sci_dev->state_machine, - SCI_BASE_REMOTE_DEVICE_STATE_READY); + sci_change_state(&sci_dev->sm, SCI_DEV_READY); } static void scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handler(void *_dev) @@ -803,17 +799,16 @@ static void scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handl /* For NCQ operation we do not issue a isci_remote_device_not_ready(). * As a result, avoid sending the ready notification. */ - if (sci_dev->state_machine.previous_state_id != SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ) + if (sci_dev->sm.previous_state_id != SCI_STP_DEV_NCQ) isci_remote_device_ready(scic_to_ihost(scic), idev); } static void scic_sds_remote_device_initial_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine); + struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); /* Initial state is a transitional state to the stopped state */ - sci_base_state_machine_change_state(&sci_dev->state_machine, - SCI_BASE_REMOTE_DEVICE_STATE_STOPPED); + sci_change_state(&sci_dev->sm, SCI_DEV_STOPPED); } /** @@ -831,11 +826,11 @@ static void scic_sds_remote_device_initial_state_enter(struct sci_base_state_mac */ static enum sci_status scic_remote_device_destruct(struct scic_sds_remote_device *sci_dev) { - struct sci_base_state_machine *sm = &sci_dev->state_machine; + struct sci_base_state_machine *sm = &sci_dev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; struct scic_sds_controller *scic; - if (state != SCI_BASE_REMOTE_DEVICE_STATE_STOPPED) { + if (state != SCI_DEV_STOPPED) { dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; @@ -845,7 +840,7 @@ static enum sci_status scic_remote_device_destruct(struct scic_sds_remote_device scic_sds_controller_free_remote_node_context(scic, sci_dev, sci_dev->rnc.remote_node_index); sci_dev->rnc.remote_node_index = SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX; - sci_base_state_machine_change_state(sm, SCI_BASE_REMOTE_DEVICE_STATE_FINAL); + sci_change_state(sm, SCI_DEV_FINAL); return SCI_SUCCESS; } @@ -906,7 +901,7 @@ static void isci_remote_device_stop_complete(struct isci_host *ihost, static void scic_sds_remote_device_stopped_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine); + struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); struct scic_sds_controller *scic = sci_dev->owning_port->owning_controller; struct isci_remote_device *idev = sci_dev_to_idev(sci_dev); u32 prev_state; @@ -914,8 +909,8 @@ static void scic_sds_remote_device_stopped_state_enter(struct sci_base_state_mac /* If we are entering from the stopping state let the SCI User know that * the stop operation has completed. */ - prev_state = sci_dev->state_machine.previous_state_id; - if (prev_state == SCI_BASE_REMOTE_DEVICE_STATE_STOPPING) + prev_state = sci_dev->sm.previous_state_id; + if (prev_state == SCI_DEV_STOPPING) isci_remote_device_stop_complete(scic_to_ihost(scic), idev); scic_sds_controller_remote_device_stopped(scic, sci_dev); @@ -923,7 +918,7 @@ static void scic_sds_remote_device_stopped_state_enter(struct sci_base_state_mac static void scic_sds_remote_device_starting_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine); + struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); struct isci_host *ihost = scic_to_ihost(scic); struct isci_remote_device *idev = sci_dev_to_idev(sci_dev); @@ -934,7 +929,7 @@ static void scic_sds_remote_device_starting_state_enter(struct sci_base_state_ma static void scic_sds_remote_device_ready_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine); + struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); struct scic_sds_controller *scic = sci_dev->owning_port->owning_controller; struct isci_remote_device *idev = sci_dev_to_idev(sci_dev); struct domain_device *dev = idev->domain_dev; @@ -942,18 +937,16 @@ static void scic_sds_remote_device_ready_state_enter(struct sci_base_state_machi scic->remote_device_sequence[sci_dev->rnc.remote_node_index]++; if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_SATA)) { - sci_base_state_machine_change_state(&sci_dev->state_machine, - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE); + sci_change_state(&sci_dev->sm, SCI_STP_DEV_IDLE); } else if (dev_is_expander(dev)) { - sci_base_state_machine_change_state(&sci_dev->state_machine, - SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE); + sci_change_state(&sci_dev->sm, SCI_SMP_DEV_IDLE); } else isci_remote_device_ready(scic_to_ihost(scic), idev); } static void scic_sds_remote_device_ready_state_exit(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine); + struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); struct domain_device *dev = sci_dev_to_domain(sci_dev); if (dev->dev_type == SAS_END_DEV) { @@ -967,7 +960,7 @@ static void scic_sds_remote_device_ready_state_exit(struct sci_base_state_machin static void scic_sds_remote_device_resetting_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine); + struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); scic_sds_remote_node_context_suspend( &sci_dev->rnc, SCI_SOFTWARE_SUSPENSION, NULL, NULL); @@ -975,14 +968,14 @@ static void scic_sds_remote_device_resetting_state_enter(struct sci_base_state_m static void scic_sds_remote_device_resetting_state_exit(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine); + struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); scic_sds_remote_node_context_resume(&sci_dev->rnc, NULL, NULL); } static void scic_sds_stp_remote_device_ready_idle_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine); + struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); sci_dev->working_request = NULL; if (scic_sds_remote_node_context_is_ready(&sci_dev->rnc)) { @@ -999,7 +992,7 @@ static void scic_sds_stp_remote_device_ready_idle_substate_enter(struct sci_base static void scic_sds_stp_remote_device_ready_cmd_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine); + struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); BUG_ON(sci_dev->working_request == NULL); @@ -1010,7 +1003,7 @@ static void scic_sds_stp_remote_device_ready_cmd_substate_enter(struct sci_base_ static void scic_sds_stp_remote_device_ready_ncq_error_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine); + struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); struct isci_remote_device *idev = sci_dev_to_idev(sci_dev); @@ -1021,7 +1014,7 @@ static void scic_sds_stp_remote_device_ready_ncq_error_substate_enter(struct sci static void scic_sds_smp_remote_device_ready_idle_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine); + struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); isci_remote_device_ready(scic_to_ihost(scic), sci_dev_to_idev(sci_dev)); @@ -1029,7 +1022,7 @@ static void scic_sds_smp_remote_device_ready_idle_substate_enter(struct sci_base static void scic_sds_smp_remote_device_ready_cmd_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine); + struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); BUG_ON(sci_dev->working_request == NULL); @@ -1040,50 +1033,50 @@ static void scic_sds_smp_remote_device_ready_cmd_substate_enter(struct sci_base_ static void scic_sds_smp_remote_device_ready_cmd_substate_exit(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), state_machine); + struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); sci_dev->working_request = NULL; } static const struct sci_base_state scic_sds_remote_device_state_table[] = { - [SCI_BASE_REMOTE_DEVICE_STATE_INITIAL] = { + [SCI_DEV_INITIAL] = { .enter_state = scic_sds_remote_device_initial_state_enter, }, - [SCI_BASE_REMOTE_DEVICE_STATE_STOPPED] = { + [SCI_DEV_STOPPED] = { .enter_state = scic_sds_remote_device_stopped_state_enter, }, - [SCI_BASE_REMOTE_DEVICE_STATE_STARTING] = { + [SCI_DEV_STARTING] = { .enter_state = scic_sds_remote_device_starting_state_enter, }, - [SCI_BASE_REMOTE_DEVICE_STATE_READY] = { + [SCI_DEV_READY] = { .enter_state = scic_sds_remote_device_ready_state_enter, .exit_state = scic_sds_remote_device_ready_state_exit }, - [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE] = { + [SCI_STP_DEV_IDLE] = { .enter_state = scic_sds_stp_remote_device_ready_idle_substate_enter, }, - [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD] = { + [SCI_STP_DEV_CMD] = { .enter_state = scic_sds_stp_remote_device_ready_cmd_substate_enter, }, - [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ] = { }, - [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR] = { + [SCI_STP_DEV_NCQ] = { }, + [SCI_STP_DEV_NCQ_ERROR] = { .enter_state = scic_sds_stp_remote_device_ready_ncq_error_substate_enter, }, - [SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET] = { }, - [SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE] = { + [SCI_STP_DEV_AWAIT_RESET] = { }, + [SCI_SMP_DEV_IDLE] = { .enter_state = scic_sds_smp_remote_device_ready_idle_substate_enter, }, - [SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD] = { + [SCI_SMP_DEV_CMD] = { .enter_state = scic_sds_smp_remote_device_ready_cmd_substate_enter, .exit_state = scic_sds_smp_remote_device_ready_cmd_substate_exit, }, - [SCI_BASE_REMOTE_DEVICE_STATE_STOPPING] = { }, - [SCI_BASE_REMOTE_DEVICE_STATE_FAILED] = { }, - [SCI_BASE_REMOTE_DEVICE_STATE_RESETTING] = { + [SCI_DEV_STOPPING] = { }, + [SCI_DEV_FAILED] = { }, + [SCI_DEV_RESETTING] = { .enter_state = scic_sds_remote_device_resetting_state_enter, .exit_state = scic_sds_remote_device_resetting_state_exit }, - [SCI_BASE_REMOTE_DEVICE_STATE_FINAL] = { }, + [SCI_DEV_FINAL] = { }, }; /** @@ -1102,11 +1095,11 @@ static void scic_remote_device_construct(struct scic_sds_port *sci_port, sci_dev->owning_port = sci_port; sci_dev->started_request_count = 0; - sci_base_state_machine_construct(&sci_dev->state_machine, + sci_base_state_machine_construct(&sci_dev->sm, scic_sds_remote_device_state_table, - SCI_BASE_REMOTE_DEVICE_STATE_INITIAL); + SCI_DEV_INITIAL); - sci_base_state_machine_start(&sci_dev->state_machine); + sci_base_state_machine_start(&sci_dev->sm); scic_sds_remote_node_context_construct(&sci_dev->rnc, SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX); @@ -1224,11 +1217,11 @@ static enum sci_status scic_remote_device_ea_construct(struct scic_sds_port *sci static enum sci_status scic_remote_device_start(struct scic_sds_remote_device *sci_dev, u32 timeout) { - struct sci_base_state_machine *sm = &sci_dev->state_machine; + struct sci_base_state_machine *sm = &sci_dev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; enum sci_status status; - if (state != SCI_BASE_REMOTE_DEVICE_STATE_STOPPED) { + if (state != SCI_DEV_STOPPED) { dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; @@ -1240,7 +1233,7 @@ static enum sci_status scic_remote_device_start(struct scic_sds_remote_device *s if (status != SCI_SUCCESS) return status; - sci_base_state_machine_change_state(sm, SCI_BASE_REMOTE_DEVICE_STATE_STARTING); + sci_change_state(sm, SCI_DEV_STARTING); return SCI_SUCCESS; } diff --git a/drivers/scsi/isci/remote_device.h b/drivers/scsi/isci/remote_device.h index a118f5873f6..2b6a5bb7bd6 100644 --- a/drivers/scsi/isci/remote_device.h +++ b/drivers/scsi/isci/remote_device.h @@ -74,7 +74,7 @@ struct scic_sds_remote_device { * This field contains the information for the base remote device state * machine. */ - struct sci_base_state_machine state_machine; + struct sci_base_state_machine sm; /** * This field is the programmed device port width. This value is @@ -109,7 +109,7 @@ struct scic_sds_remote_device { /** * This field contains the stated request count for the remote device. The - * device can not reach the SCI_BASE_REMOTE_DEVICE_STATE_STOPPED until all + * device can not reach the SCI_DEV_STOPPED until all * requests are complete and the rnc_posted value is false. */ u32 started_request_count; @@ -213,7 +213,7 @@ enum scic_sds_remote_device_states { /** * Simply the initial state for the base remote device state machine. */ - SCI_BASE_REMOTE_DEVICE_STATE_INITIAL, + SCI_DEV_INITIAL, /** * This state indicates that the remote device has successfully been @@ -221,7 +221,7 @@ enum scic_sds_remote_device_states { * This state is entered from the INITIAL state. * This state is entered from the STOPPING state. */ - SCI_BASE_REMOTE_DEVICE_STATE_STOPPED, + SCI_DEV_STOPPED, /** * This state indicates the the remote device is in the process of @@ -229,34 +229,34 @@ enum scic_sds_remote_device_states { * are permitted. * This state is entered from the STOPPED state. */ - SCI_BASE_REMOTE_DEVICE_STATE_STARTING, + SCI_DEV_STARTING, /** * This state indicates the remote device is now ready. Thus, the user * is able to perform IO operations on the remote device. * This state is entered from the STARTING state. */ - SCI_BASE_REMOTE_DEVICE_STATE_READY, + SCI_DEV_READY, /** * This is the idle substate for the stp remote device. When there are no * active IO for the device it is is in this state. */ - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE, + SCI_STP_DEV_IDLE, /** * This is the command state for for the STP remote device. This state is * entered when the device is processing a non-NCQ command. The device object * will fail any new start IO requests until this command is complete. */ - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD, + SCI_STP_DEV_CMD, /** * This is the NCQ state for the STP remote device. This state is entered * when the device is processing an NCQ reuqest. It will remain in this state * so long as there is one or more NCQ requests being processed. */ - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ, + SCI_STP_DEV_NCQ, /** * This is the NCQ error state for the STP remote device. This state is @@ -264,25 +264,25 @@ enum scic_sds_remote_device_states { * NCQ state. The device object will only accept a READ LOG command while in * this state. */ - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR, + SCI_STP_DEV_NCQ_ERROR, /** * This is the READY substate indicates the device is waiting for the RESET task * coming to be recovered from certain hardware specific error. */ - SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET, + SCI_STP_DEV_AWAIT_RESET, /** * This is the ready operational substate for the remote device. This is the * normal operational state for a remote device. */ - SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE, + SCI_SMP_DEV_IDLE, /** * This is the suspended state for the remote device. This is the state that * the device is placed in when a RNC suspend is received by the SCU hardware. */ - SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD, + SCI_SMP_DEV_CMD, /** * This state indicates that the remote device is in the process of @@ -291,7 +291,7 @@ enum scic_sds_remote_device_states { * This state is entered from the READY state. * This state is entered from the FAILED state. */ - SCI_BASE_REMOTE_DEVICE_STATE_STOPPING, + SCI_DEV_STOPPING, /** * This state indicates that the remote device has failed. @@ -299,19 +299,19 @@ enum scic_sds_remote_device_states { * This state is entered from the INITIALIZING state. * This state is entered from the READY state. */ - SCI_BASE_REMOTE_DEVICE_STATE_FAILED, + SCI_DEV_FAILED, /** * This state indicates the device is being reset. * In this state no new IO operations are permitted. * This state is entered from the READY state. */ - SCI_BASE_REMOTE_DEVICE_STATE_RESETTING, + SCI_DEV_RESETTING, /** * Simply the final state for the base remote device state machine. */ - SCI_BASE_REMOTE_DEVICE_STATE_FINAL, + SCI_DEV_FINAL, }; static inline struct scic_sds_remote_device *rnc_to_dev(struct scic_sds_remote_node_context *rnc) diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index e7fa5bac7d5..24b1d8acf7b 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -84,9 +84,9 @@ bool scic_sds_remote_node_context_is_ready( struct scic_sds_remote_node_context *sci_rnc) { - u32 current_state = sci_base_state_machine_get_state(&sci_rnc->state_machine); + u32 current_state = sci_rnc->sm.current_state_id; - if (current_state == SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE) { + if (current_state == SCI_RNC_READY) { return true; } @@ -268,12 +268,12 @@ static void scic_sds_remote_node_context_invalidate_context_buffer( static void scic_sds_remote_node_context_initial_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine); + struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); /* Check to see if we have gotten back to the initial state because * someone requested to destroy the remote node context object. */ - if (sm->previous_state_id == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE) { + if (sm->previous_state_id == SCI_RNC_INVALIDATING) { rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; scic_sds_remote_node_context_notify_user(rnc); } @@ -281,21 +281,21 @@ static void scic_sds_remote_node_context_initial_state_enter(struct sci_base_sta static void scic_sds_remote_node_context_posting_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *sci_rnc = container_of(sm, typeof(*sci_rnc), state_machine); + struct scic_sds_remote_node_context *sci_rnc = container_of(sm, typeof(*sci_rnc), sm); scic_sds_remote_node_context_validate_context_buffer(sci_rnc); } static void scic_sds_remote_node_context_invalidating_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine); + struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); scic_sds_remote_node_context_invalidate_context_buffer(rnc); } static void scic_sds_remote_node_context_resuming_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine); + struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); struct scic_sds_remote_device *sci_dev; struct domain_device *dev; @@ -318,7 +318,7 @@ static void scic_sds_remote_node_context_resuming_state_enter(struct sci_base_st static void scic_sds_remote_node_context_ready_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine); + struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; @@ -328,41 +328,41 @@ static void scic_sds_remote_node_context_ready_state_enter(struct sci_base_state static void scic_sds_remote_node_context_tx_suspended_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine); + struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); scic_sds_remote_node_context_continue_state_transitions(rnc); } static void scic_sds_remote_node_context_tx_rx_suspended_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), state_machine); + struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); scic_sds_remote_node_context_continue_state_transitions(rnc); } static const struct sci_base_state scic_sds_remote_node_context_state_table[] = { - [SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE] = { + [SCI_RNC_INITIAL] = { .enter_state = scic_sds_remote_node_context_initial_state_enter, }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE] = { + [SCI_RNC_POSTING] = { .enter_state = scic_sds_remote_node_context_posting_state_enter, }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE] = { + [SCI_RNC_INVALIDATING] = { .enter_state = scic_sds_remote_node_context_invalidating_state_enter, }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE] = { + [SCI_RNC_RESUMING] = { .enter_state = scic_sds_remote_node_context_resuming_state_enter, }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE] = { + [SCI_RNC_READY] = { .enter_state = scic_sds_remote_node_context_ready_state_enter, }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE] = { + [SCI_RNC_TX_SUSPENDED] = { .enter_state = scic_sds_remote_node_context_tx_suspended_state_enter, }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE] = { + [SCI_RNC_TX_RX_SUSPENDED] = { .enter_state = scic_sds_remote_node_context_tx_rx_suspended_state_enter, }, - [SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE] = { }, + [SCI_RNC_AWAIT_SUSPENSION] = { }, }; void scic_sds_remote_node_context_construct(struct scic_sds_remote_node_context *rnc, @@ -373,11 +373,11 @@ void scic_sds_remote_node_context_construct(struct scic_sds_remote_node_context rnc->remote_node_index = remote_node_index; rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; - sci_base_state_machine_construct(&rnc->state_machine, + sci_base_state_machine_construct(&rnc->sm, scic_sds_remote_node_context_state_table, - SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE); + SCI_RNC_INITIAL); - sci_base_state_machine_start(&rnc->state_machine); + sci_base_state_machine_start(&rnc->sm); } enum sci_status scic_sds_remote_node_context_event_handler(struct scic_sds_remote_node_context *sci_rnc, @@ -385,26 +385,24 @@ enum sci_status scic_sds_remote_node_context_event_handler(struct scic_sds_remot { enum scis_sds_remote_node_context_states state; - state = sci_rnc->state_machine.current_state_id; + state = sci_rnc->sm.current_state_id; switch (state) { - case SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE: + case SCI_RNC_POSTING: switch (scu_get_event_code(event_code)) { case SCU_EVENT_POST_RNC_COMPLETE: - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_READY); break; default: goto out; } break; - case SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE: + case SCI_RNC_INVALIDATING: if (scu_get_event_code(event_code) == SCU_EVENT_POST_RNC_INVALIDATE_COMPLETE) { if (sci_rnc->destination_state == SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_FINAL) - state = SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE; + state = SCI_RNC_INITIAL; else - state = SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE; - sci_base_state_machine_change_state(&sci_rnc->state_machine, - state); + state = SCI_RNC_POSTING; + sci_change_state(&sci_rnc->sm, state); } else { switch (scu_get_event_type(event_code)) { case SCU_EVENT_TYPE_RNC_SUSPEND_TX: @@ -421,10 +419,9 @@ enum sci_status scic_sds_remote_node_context_event_handler(struct scic_sds_remot } } break; - case SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE: + case SCI_RNC_RESUMING: if (scu_get_event_code(event_code) == SCU_EVENT_POST_RCN_RELEASE) { - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_READY); } else { switch (scu_get_event_type(event_code)) { case SCU_EVENT_TYPE_RNC_SUSPEND_TX: @@ -441,32 +438,28 @@ enum sci_status scic_sds_remote_node_context_event_handler(struct scic_sds_remot } } break; - case SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE: + case SCI_RNC_READY: switch (scu_get_event_type(event_code)) { case SCU_EVENT_TL_RNC_SUSPEND_TX: - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_TX_SUSPENDED); sci_rnc->suspension_code = scu_get_event_specifier(event_code); break; case SCU_EVENT_TL_RNC_SUSPEND_TX_RX: - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_TX_RX_SUSPENDED); sci_rnc->suspension_code = scu_get_event_specifier(event_code); break; default: goto out; } break; - case SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE: + case SCI_RNC_AWAIT_SUSPENSION: switch (scu_get_event_type(event_code)) { case SCU_EVENT_TL_RNC_SUSPEND_TX: - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_TX_SUSPENDED); sci_rnc->suspension_code = scu_get_event_specifier(event_code); break; case SCU_EVENT_TL_RNC_SUSPEND_TX_RX: - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_TX_RX_SUSPENDED); sci_rnc->suspension_code = scu_get_event_specifier(event_code); break; default: @@ -493,22 +486,21 @@ enum sci_status scic_sds_remote_node_context_destruct(struct scic_sds_remote_nod { enum scis_sds_remote_node_context_states state; - state = sci_rnc->state_machine.current_state_id; + state = sci_rnc->sm.current_state_id; switch (state) { - case SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE: + case SCI_RNC_INVALIDATING: scic_sds_remote_node_context_setup_to_destory(sci_rnc, cb_fn, cb_p); return SCI_SUCCESS; - case SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE: - case SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE: - case SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE: - case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE: - case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE: - case SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE: + case SCI_RNC_POSTING: + case SCI_RNC_RESUMING: + case SCI_RNC_READY: + case SCI_RNC_TX_SUSPENDED: + case SCI_RNC_TX_RX_SUSPENDED: + case SCI_RNC_AWAIT_SUSPENSION: scic_sds_remote_node_context_setup_to_destory(sci_rnc, cb_fn, cb_p); - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_INVALIDATING); return SCI_SUCCESS; - case SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE: + case SCI_RNC_INITIAL: dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), "%s: invalid state %d\n", __func__, state); /* We have decided that the destruct request on the remote node context @@ -530,8 +522,8 @@ enum sci_status scic_sds_remote_node_context_suspend(struct scic_sds_remote_node { enum scis_sds_remote_node_context_states state; - state = sci_rnc->state_machine.current_state_id; - if (state != SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE) { + state = sci_rnc->sm.current_state_id; + if (state != SCI_RNC_READY) { dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), "%s: invalid state %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; @@ -546,8 +538,7 @@ enum sci_status scic_sds_remote_node_context_suspend(struct scic_sds_remote_node SCU_CONTEXT_COMMAND_POST_RNC_SUSPEND_TX); } - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_AWAIT_SUSPENSION); return SCI_SUCCESS; } @@ -557,27 +548,26 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_ { enum scis_sds_remote_node_context_states state; - state = sci_rnc->state_machine.current_state_id; + state = sci_rnc->sm.current_state_id; switch (state) { - case SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE: + case SCI_RNC_INITIAL: if (sci_rnc->remote_node_index == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) return SCI_FAILURE_INVALID_STATE; scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); scic_sds_remote_node_context_construct_buffer(sci_rnc); - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_POSTING); return SCI_SUCCESS; - case SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE: - case SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE: - case SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE: + case SCI_RNC_POSTING: + case SCI_RNC_INVALIDATING: + case SCI_RNC_RESUMING: if (sci_rnc->destination_state != SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY) return SCI_FAILURE_INVALID_STATE; sci_rnc->user_callback = cb_fn; sci_rnc->user_cookie = cb_p; return SCI_SUCCESS; - case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE: { + case SCI_RNC_TX_SUSPENDED: { struct scic_sds_remote_device *sci_dev = rnc_to_dev(sci_rnc); struct domain_device *dev = sci_dev_to_domain(sci_dev); @@ -585,27 +575,23 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_ /* TODO: consider adding a resume action of NONE, INVALIDATE, WRITE_TLCR */ if (dev->dev_type == SAS_END_DEV || dev_is_expander(dev)) - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_RESUMING); else if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) { if (sci_dev->is_direct_attached) { /* @todo Fix this since I am being silly in writing to the STPTLDARNI register. */ - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_RESUMING); } else { - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_INVALIDATING); } } else return SCI_FAILURE; return SCI_SUCCESS; } - case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE: + case SCI_RNC_TX_RX_SUSPENDED: scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); - sci_base_state_machine_change_state(&sci_rnc->state_machine, - SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE); + sci_change_state(&sci_rnc->sm, SCI_RNC_RESUMING); return SCI_FAILURE_INVALID_STATE; - case SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE: + case SCI_RNC_AWAIT_SUSPENSION: scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); return SCI_SUCCESS; default: @@ -620,8 +606,8 @@ enum sci_status scic_sds_remote_node_context_start_io(struct scic_sds_remote_nod { enum scis_sds_remote_node_context_states state; - state = sci_rnc->state_machine.current_state_id; - if (state != SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE) { + state = sci_rnc->sm.current_state_id; + if (state != SCI_RNC_READY) { dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), "%s: invalid state %d\n", __func__, state); return SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED; @@ -634,14 +620,14 @@ enum sci_status scic_sds_remote_node_context_start_task(struct scic_sds_remote_n { enum scis_sds_remote_node_context_states state; - state = sci_rnc->state_machine.current_state_id; + state = sci_rnc->sm.current_state_id; switch (state) { - case SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE: - case SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE: - case SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE: + case SCI_RNC_RESUMING: + case SCI_RNC_READY: + case SCI_RNC_AWAIT_SUSPENSION: return SCI_SUCCESS; - case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE: - case SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE: + case SCI_RNC_TX_SUSPENDED: + case SCI_RNC_TX_RX_SUSPENDED: scic_sds_remote_node_context_resume(sci_rnc, NULL, NULL); return SCI_SUCCESS; default: diff --git a/drivers/scsi/isci/remote_node_context.h b/drivers/scsi/isci/remote_node_context.h index f53329f782c..e6c7248be3f 100644 --- a/drivers/scsi/isci/remote_node_context.h +++ b/drivers/scsi/isci/remote_node_context.h @@ -92,45 +92,45 @@ enum scis_sds_remote_node_context_states { * This state is the initial state for a remote node context. On a resume * request the remote node context will transition to the posting state. */ - SCIC_SDS_REMOTE_NODE_CONTEXT_INITIAL_STATE, + SCI_RNC_INITIAL, /** * This is a transition state that posts the RNi to the hardware. Once the RNC * is posted the remote node context will be made ready. */ - SCIC_SDS_REMOTE_NODE_CONTEXT_POSTING_STATE, + SCI_RNC_POSTING, /** * This is a transition state that will post an RNC invalidate to the * hardware. Once the invalidate is complete the remote node context will * transition to the posting state. */ - SCIC_SDS_REMOTE_NODE_CONTEXT_INVALIDATING_STATE, + SCI_RNC_INVALIDATING, /** * This is a transition state that will post an RNC resume to the hardare. * Once the event notification of resume complete is received the remote node * context will transition to the ready state. */ - SCIC_SDS_REMOTE_NODE_CONTEXT_RESUMING_STATE, + SCI_RNC_RESUMING, /** * This is the state that the remote node context must be in to accept io * request operations. */ - SCIC_SDS_REMOTE_NODE_CONTEXT_READY_STATE, + SCI_RNC_READY, /** * This is the state that the remote node context transitions to when it gets * a TX suspend notification from the hardware. */ - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE, + SCI_RNC_TX_SUSPENDED, /** * This is the state that the remote node context transitions to when it gets * a TX RX suspend notification from the hardware. */ - SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE, + SCI_RNC_TX_RX_SUSPENDED, /** * This state is a wait state for the remote node context that waits for a @@ -138,7 +138,7 @@ enum scis_sds_remote_node_context_states { * there is a request to supend the remote node context or when there is a TC * completion where the remote node will be suspended by the hardware. */ - SCIC_SDS_REMOTE_NODE_CONTEXT_AWAIT_SUSPENSION_STATE + SCI_RNC_AWAIT_SUSPENSION }; /** @@ -194,7 +194,7 @@ struct scic_sds_remote_node_context { /** * This field contains the data for the object's state machine. */ - struct sci_base_state_machine state_machine; + struct sci_base_state_machine sm; }; void scic_sds_remote_node_context_construct(struct scic_sds_remote_node_context *rnc, diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index 31c9b2c3425..89f0ab925c2 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -649,8 +649,7 @@ static enum sci_status scic_io_request_construct_basic_ssp(struct scic_sds_reque scic_sds_io_request_build_ssp_command_iu(sci_req); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_CONSTRUCTED); + sci_change_state(&sci_req->sm, SCI_REQ_CONSTRUCTED); return SCI_SUCCESS; } @@ -664,8 +663,7 @@ enum sci_status scic_task_request_construct_ssp( /* Fill in the SSP Task IU */ scic_sds_task_request_build_ssp_task_iu(sci_req); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_CONSTRUCTED); + sci_change_state(&sci_req->sm, SCI_REQ_CONSTRUCTED); return SCI_SUCCESS; } @@ -687,8 +685,7 @@ static enum sci_status scic_io_request_construct_basic_sata(struct scic_sds_requ copy); if (status == SCI_SUCCESS) - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_CONSTRUCTED); + sci_change_state(&sci_req->sm, SCI_REQ_CONSTRUCTED); return status; } @@ -718,8 +715,7 @@ enum sci_status scic_task_request_construct_sata(struct scic_sds_request *sci_re if (status != SCI_SUCCESS) return status; - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_CONSTRUCTED); + sci_change_state(&sci_req->sm, SCI_REQ_CONSTRUCTED); return status; } @@ -761,8 +757,8 @@ enum sci_status scic_sds_request_start(struct scic_sds_request *sci_req) scic_sds_remote_device_get_sequence(sci_req->target_device)) return SCI_FAILURE; - state = sci_req->state_machine.current_state_id; - if (state != SCI_BASE_REQUEST_STATE_CONSTRUCTED) { + state = sci_req->sm.current_state_id; + if (state != SCI_REQ_CONSTRUCTED) { dev_warn(scic_to_dev(scic), "%s: SCIC IO Request requested to start while in wrong " "state %d\n", __func__, state); @@ -818,8 +814,7 @@ enum sci_status scic_sds_request_start(struct scic_sds_request *sci_req) sci_req->post_context |= scic_sds_io_tag_get_index(sci_req->io_tag); /* Everything is good go ahead and change state */ - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_STARTED); + sci_change_state(&sci_req->sm, SCI_REQ_STARTED); return SCI_SUCCESS; } @@ -832,52 +827,47 @@ scic_sds_io_request_terminate(struct scic_sds_request *sci_req) { enum sci_base_request_states state; - state = sci_req->state_machine.current_state_id; + state = sci_req->sm.current_state_id; switch (state) { - case SCI_BASE_REQUEST_STATE_CONSTRUCTED: + case SCI_REQ_CONSTRUCTED: scic_sds_request_set_status(sci_req, SCU_TASK_DONE_TASK_ABORT, SCI_FAILURE_IO_TERMINATED); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); return SCI_SUCCESS; - case SCI_BASE_REQUEST_STATE_STARTED: - case SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION: - case SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_RESPONSE: - case SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_TC_COMPLETION: - case SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_TC_COMPLETION_SUBSTATE: - case SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_D2H_REG_FIS_SUBSTATE: - case SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_H2D_COMPLETION_SUBSTATE: - case SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_D2H_SUBSTATE: - case SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_H2D_COMPLETION_SUBSTATE: - case SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_FRAME_SUBSTATE: - case SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_IN_AWAIT_DATA_SUBSTATE: - case SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_OUT_TRANSMIT_DATA_SUBSTATE: - case SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_ASSERTED_COMPLETION_SUBSTATE: - case SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_DIAGNOSTIC_COMPLETION_SUBSTATE: - case SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_D2H_RESPONSE_FRAME_SUBSTATE: - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_ABORTING); + case SCI_REQ_STARTED: + case SCI_REQ_TASK_WAIT_TC_COMP: + case SCI_REQ_SMP_WAIT_RESP: + case SCI_REQ_SMP_WAIT_TC_COMP: + case SCI_REQ_STP_UDMA_WAIT_TC_COMP: + case SCI_REQ_STP_UDMA_WAIT_D2H: + case SCI_REQ_STP_NON_DATA_WAIT_H2D: + case SCI_REQ_STP_NON_DATA_WAIT_D2H: + case SCI_REQ_STP_PIO_WAIT_H2D: + case SCI_REQ_STP_PIO_WAIT_FRAME: + case SCI_REQ_STP_PIO_DATA_IN: + case SCI_REQ_STP_PIO_DATA_OUT: + case SCI_REQ_STP_SOFT_RESET_WAIT_H2D_ASSERTED: + case SCI_REQ_STP_SOFT_RESET_WAIT_H2D_DIAG: + case SCI_REQ_STP_SOFT_RESET_WAIT_D2H: + sci_change_state(&sci_req->sm, SCI_REQ_ABORTING); return SCI_SUCCESS; - case SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE: - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_ABORTING); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + case SCI_REQ_TASK_WAIT_TC_RESP: + sci_change_state(&sci_req->sm, SCI_REQ_ABORTING); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); return SCI_SUCCESS; - case SCI_BASE_REQUEST_STATE_ABORTING: - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + case SCI_REQ_ABORTING: + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); return SCI_SUCCESS; - case SCI_BASE_REQUEST_STATE_COMPLETED: + case SCI_REQ_COMPLETED: default: dev_warn(scic_to_dev(sci_req->owning_controller), "%s: SCIC IO Request requested to abort while in wrong " "state %d\n", __func__, - sci_base_state_machine_get_state(&sci_req->state_machine)); + sci_req->sm.current_state_id); break; } @@ -889,8 +879,8 @@ enum sci_status scic_sds_request_complete(struct scic_sds_request *sci_req) enum sci_base_request_states state; struct scic_sds_controller *scic = sci_req->owning_controller; - state = sci_req->state_machine.current_state_id; - if (WARN_ONCE(state != SCI_BASE_REQUEST_STATE_COMPLETED, + state = sci_req->sm.current_state_id; + if (WARN_ONCE(state != SCI_REQ_COMPLETED, "isci: request completion from wrong state (%d)\n", state)) return SCI_FAILURE_INVALID_STATE; @@ -902,8 +892,7 @@ enum sci_status scic_sds_request_complete(struct scic_sds_request *sci_req) sci_req->saved_rx_frame_index); /* XXX can we just stop the machine and remove the 'final' state? */ - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_FINAL); + sci_change_state(&sci_req->sm, SCI_REQ_FINAL); return SCI_SUCCESS; } @@ -913,9 +902,9 @@ enum sci_status scic_sds_io_request_event_handler(struct scic_sds_request *sci_r enum sci_base_request_states state; struct scic_sds_controller *scic = sci_req->owning_controller; - state = sci_req->state_machine.current_state_id; + state = sci_req->sm.current_state_id; - if (state != SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_IN_AWAIT_DATA_SUBSTATE) { + if (state != SCI_REQ_STP_PIO_DATA_IN) { dev_warn(scic_to_dev(scic), "%s: (%x) in wrong state %d\n", __func__, event_code, state); @@ -927,8 +916,7 @@ enum sci_status scic_sds_io_request_event_handler(struct scic_sds_request *sci_r /* We are waiting for data and the SCU has R_ERR the data frame. * Go back to waiting for the D2H Register FIS */ - sci_base_state_machine_change_state(&sci_req->state_machine, - SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_FRAME_SUBSTATE); + sci_change_state(&sci_req->sm, SCI_REQ_STP_PIO_WAIT_FRAME); return SCI_SUCCESS; default: dev_err(scic_to_dev(scic), @@ -967,8 +955,9 @@ static void scic_sds_io_request_copy_response(struct scic_sds_request *sci_req) memcpy(resp_buf, ssp_response->resp_data, len); } -static enum sci_status request_started_state_tc_event(struct scic_sds_request *sci_req, - u32 completion_code) +static enum sci_status +request_started_state_tc_event(struct scic_sds_request *sci_req, + u32 completion_code) { struct ssp_response_iu *resp_iu; u8 datapres; @@ -1110,13 +1099,13 @@ static enum sci_status request_started_state_tc_event(struct scic_sds_request *s */ /* In all cases we will treat this as the completion of the IO req. */ - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); return SCI_SUCCESS; } -static enum sci_status request_aborting_state_tc_event(struct scic_sds_request *sci_req, - u32 completion_code) +static enum sci_status +request_aborting_state_tc_event(struct scic_sds_request *sci_req, + u32 completion_code) { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case (SCU_TASK_DONE_GOOD << SCU_COMPLETION_TL_STATUS_SHIFT): @@ -1124,8 +1113,7 @@ static enum sci_status request_aborting_state_tc_event(struct scic_sds_request * scic_sds_request_set_status(sci_req, SCU_TASK_DONE_TASK_ABORT, SCI_FAILURE_IO_TERMINATED); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); break; default: @@ -1146,8 +1134,7 @@ static enum sci_status ssp_task_request_await_tc_event(struct scic_sds_request * scic_sds_request_set_status(sci_req, SCU_TASK_DONE_GOOD, SCI_SUCCESS); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE); + sci_change_state(&sci_req->sm, SCI_REQ_TASK_WAIT_TC_RESP); break; case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_ACK_NAK_TO): /* Currently, the decision is to simply allow the task request @@ -1160,27 +1147,28 @@ static enum sci_status ssp_task_request_await_tc_event(struct scic_sds_request * "ACK/NAK timeout\n", __func__, sci_req, completion_code); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE); + sci_change_state(&sci_req->sm, SCI_REQ_TASK_WAIT_TC_RESP); break; default: - /* All other completion status cause the IO to be complete. If a NAK - * was received, then it is up to the user to retry the request. + /* + * All other completion status cause the IO to be complete. + * If a NAK was received, then it is up to the user to retry + * the request. */ scic_sds_request_set_status(sci_req, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); break; } return SCI_SUCCESS; } -static enum sci_status smp_request_await_response_tc_event(struct scic_sds_request *sci_req, - u32 completion_code) +static enum sci_status +smp_request_await_response_tc_event(struct scic_sds_request *sci_req, + u32 completion_code) { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): @@ -1191,8 +1179,7 @@ static enum sci_status smp_request_await_response_tc_event(struct scic_sds_reque scic_sds_request_set_status(sci_req, SCU_TASK_DONE_GOOD, SCI_SUCCESS); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); break; case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SMP_RESP_TO_ERR): @@ -1209,8 +1196,7 @@ static enum sci_status smp_request_await_response_tc_event(struct scic_sds_reque scic_sds_request_set_status(sci_req, SCU_TASK_DONE_SMP_RESP_TO_ERR, SCI_FAILURE_RETRY_REQUIRED); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); break; default: @@ -1221,24 +1207,23 @@ static enum sci_status smp_request_await_response_tc_event(struct scic_sds_reque SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); break; } return SCI_SUCCESS; } -static enum sci_status smp_request_await_tc_event(struct scic_sds_request *sci_req, - u32 completion_code) +static enum sci_status +smp_request_await_tc_event(struct scic_sds_request *sci_req, + u32 completion_code) { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): scic_sds_request_set_status(sci_req, SCU_TASK_DONE_GOOD, SCI_SUCCESS); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); break; default: /* All other completion status cause the IO to be @@ -1249,8 +1234,7 @@ static enum sci_status smp_request_await_tc_event(struct scic_sds_request *sci_r SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); break; } @@ -1311,16 +1295,16 @@ static struct scu_sgl_element *scic_sds_stp_request_pio_get_next_sgl(struct scic return current_sgl; } -static enum sci_status stp_request_non_data_await_h2d_tc_event(struct scic_sds_request *sci_req, - u32 completion_code) +static enum sci_status +stp_request_non_data_await_h2d_tc_event(struct scic_sds_request *sci_req, + u32 completion_code) { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): scic_sds_request_set_status(sci_req, SCU_TASK_DONE_GOOD, SCI_SUCCESS); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_D2H_SUBSTATE); + sci_change_state(&sci_req->sm, SCI_REQ_STP_NON_DATA_WAIT_D2H); break; default: @@ -1332,8 +1316,7 @@ static enum sci_status stp_request_non_data_await_h2d_tc_event(struct scic_sds_r SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); break; } @@ -1509,17 +1492,19 @@ static enum sci_status scic_sds_stp_request_pio_data_in_copy_data( return status; } -static enum sci_status stp_request_pio_await_h2d_completion_tc_event(struct scic_sds_request *sci_req, - u32 completion_code) +static enum sci_status +stp_request_pio_await_h2d_completion_tc_event(struct scic_sds_request *sci_req, + u32 completion_code) { enum sci_status status = SCI_SUCCESS; switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - scic_sds_request_set_status(sci_req, SCU_TASK_DONE_GOOD, SCI_SUCCESS); + scic_sds_request_set_status(sci_req, + SCU_TASK_DONE_GOOD, + SCI_SUCCESS); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_FRAME_SUBSTATE); + sci_change_state(&sci_req->sm, SCI_REQ_STP_PIO_WAIT_FRAME); break; default: @@ -1531,16 +1516,16 @@ static enum sci_status stp_request_pio_await_h2d_completion_tc_event(struct scic SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); break; } return status; } -static enum sci_status pio_data_out_tx_done_tc_event(struct scic_sds_request *sci_req, - u32 completion_code) +static enum sci_status +pio_data_out_tx_done_tc_event(struct scic_sds_request *sci_req, + u32 completion_code) { enum sci_status status = SCI_SUCCESS; bool all_frames_transferred = false; @@ -1566,28 +1551,24 @@ static enum sci_status pio_data_out_tx_done_tc_event(struct scic_sds_request *sc /* all data transferred. */ if (all_frames_transferred) { /* - * Change the state to SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_IN_AWAIT_FRAME_SUBSTATE + * Change the state to SCI_REQ_STP_PIO_DATA_IN * and wait for PIO_SETUP fis / or D2H REg fis. */ - sci_base_state_machine_change_state( - &sci_req->state_machine, - SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_FRAME_SUBSTATE - ); + sci_change_state(&sci_req->sm, SCI_REQ_STP_PIO_WAIT_FRAME); } break; + default: /* - * All other completion status cause the IO to be complete. If a NAK - * was received, then it is up to the user to retry the request. */ + * All other completion status cause the IO to be complete. + * If a NAK was received, then it is up to the user to retry + * the request. + */ scic_sds_request_set_status( sci_req, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR - ); + SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_base_state_machine_change_state( - &sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED - ); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); break; } @@ -1600,8 +1581,7 @@ static void scic_sds_stp_request_udma_complete_request( enum sci_status sci_status) { scic_sds_request_set_status(request, scu_status, sci_status); - sci_base_state_machine_change_state(&request->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_change_state(&request->sm, SCI_REQ_COMPLETED); } static enum sci_status scic_sds_stp_request_udma_general_frame_handler(struct scic_sds_request *sci_req, @@ -1632,8 +1612,9 @@ static enum sci_status scic_sds_stp_request_udma_general_frame_handler(struct sc return status; } -enum sci_status scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, - u32 frame_index) +enum sci_status +scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, + u32 frame_index) { struct scic_sds_controller *scic = sci_req->owning_controller; struct scic_sds_stp_request *stp_req = &sci_req->stp.req; @@ -1641,9 +1622,9 @@ enum sci_status scic_sds_io_request_frame_handler(struct scic_sds_request *sci_r enum sci_status status; ssize_t word_cnt; - state = sci_req->state_machine.current_state_id; + state = sci_req->sm.current_state_id; switch (state) { - case SCI_BASE_REQUEST_STATE_STARTED: { + case SCI_REQ_STARTED: { struct ssp_frame_hdr ssp_hdr; void *frame_header; @@ -1684,20 +1665,21 @@ enum sci_status scic_sds_io_request_frame_handler(struct scic_sds_request *sci_r } /* - * In any case we are done with this frame buffer return it to the - * controller + * In any case we are done with this frame buffer return it to + * the controller */ scic_sds_controller_release_frame(scic, frame_index); return SCI_SUCCESS; } - case SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE: + + case SCI_REQ_TASK_WAIT_TC_RESP: scic_sds_io_request_copy_response(sci_req); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); scic_sds_controller_release_frame(scic,frame_index); return SCI_SUCCESS; - case SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_RESPONSE: { + + case SCI_REQ_SMP_WAIT_RESP: { struct smp_resp *rsp_hdr = &sci_req->smp.rsp; void *frame_header; @@ -1725,32 +1707,40 @@ enum sci_status scic_sds_io_request_frame_handler(struct scic_sds_request *sci_r scic_sds_request_set_status(sci_req, SCU_TASK_DONE_GOOD, SCI_SUCCESS); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_TC_COMPLETION); + sci_change_state(&sci_req->sm, SCI_REQ_SMP_WAIT_TC_COMP); } else { - /* This was not a response frame why did it get forwarded? */ + /* + * This was not a response frame why did it get + * forwarded? + */ dev_err(scic_to_dev(scic), - "%s: SCIC SMP Request 0x%p received unexpected frame " - "%d type 0x%02x\n", __func__, sci_req, - frame_index, rsp_hdr->frame_type); + "%s: SCIC SMP Request 0x%p received unexpected " + "frame %d type 0x%02x\n", + __func__, + sci_req, + frame_index, + rsp_hdr->frame_type); scic_sds_request_set_status(sci_req, SCU_TASK_DONE_SMP_FRM_TYPE_ERR, SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); } scic_sds_controller_release_frame(scic, frame_index); return SCI_SUCCESS; } - case SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_TC_COMPLETION_SUBSTATE: - return scic_sds_stp_request_udma_general_frame_handler(sci_req, frame_index); - case SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_D2H_REG_FIS_SUBSTATE: + + case SCI_REQ_STP_UDMA_WAIT_TC_COMP: + return scic_sds_stp_request_udma_general_frame_handler(sci_req, + frame_index); + + case SCI_REQ_STP_UDMA_WAIT_D2H: /* Use the general frame handler to copy the resposne data */ - status = scic_sds_stp_request_udma_general_frame_handler(sci_req, frame_index); + status = scic_sds_stp_request_udma_general_frame_handler(sci_req, + frame_index); if (status != SCI_SUCCESS) return status; @@ -1758,8 +1748,10 @@ enum sci_status scic_sds_io_request_frame_handler(struct scic_sds_request *sci_r scic_sds_stp_request_udma_complete_request(sci_req, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); + return SCI_SUCCESS; - case SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_D2H_SUBSTATE: { + + case SCI_REQ_STP_NON_DATA_WAIT_D2H: { struct dev_to_host_fis *frame_header; u32 *frame_buffer; @@ -1769,9 +1761,12 @@ enum sci_status scic_sds_io_request_frame_handler(struct scic_sds_request *sci_r if (status != SCI_SUCCESS) { dev_err(scic_to_dev(scic), - "%s: SCIC IO Request 0x%p could not get frame header " - "for frame index %d, status %x\n", - __func__, stp_req, frame_index, status); + "%s: SCIC IO Request 0x%p could not get frame " + "header for frame index %d, status %x\n", + __func__, + stp_req, + frame_index, + status); return status; } @@ -1802,15 +1797,15 @@ enum sci_status scic_sds_io_request_frame_handler(struct scic_sds_request *sci_r break; } - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); /* Frame has been decoded return it to the controller */ scic_sds_controller_release_frame(scic, frame_index); return status; } - case SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_FRAME_SUBSTATE: { + + case SCI_REQ_STP_PIO_WAIT_FRAME: { struct isci_request *ireq = sci_req_to_ireq(sci_req); struct sas_task *task = isci_request_access_task(ireq); struct dev_to_host_fis *frame_header; @@ -1822,8 +1817,8 @@ enum sci_status scic_sds_io_request_frame_handler(struct scic_sds_request *sci_r if (status != SCI_SUCCESS) { dev_err(scic_to_dev(scic), - "%s: SCIC IO Request 0x%p could not get frame header " - "for frame index %d, status %x\n", + "%s: SCIC IO Request 0x%p could not get frame " + "header for frame index %d, status %x\n", __func__, stp_req, frame_index, status); return status; } @@ -1835,9 +1830,10 @@ enum sci_status scic_sds_io_request_frame_handler(struct scic_sds_request *sci_r frame_index, (void **)&frame_buffer); - /* Get the data from the PIO Setup The SCU Hardware returns - * first word in the frame_header and the rest of the data is in - * the frame buffer so we need to back up one dword + /* Get the data from the PIO Setup The SCU Hardware + * returns first word in the frame_header and the rest + * of the data is in the frame buffer so we need to + * back up one dword */ /* transfer_count: first 16bits in the 4th dword */ @@ -1856,31 +1852,33 @@ enum sci_status scic_sds_io_request_frame_handler(struct scic_sds_request *sci_r * request was PIO Data-in or Data out */ if (task->data_dir == DMA_FROM_DEVICE) { - sci_base_state_machine_change_state(&sci_req->state_machine, - SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_IN_AWAIT_DATA_SUBSTATE); + sci_change_state(&sci_req->sm, SCI_REQ_STP_PIO_DATA_IN); } else if (task->data_dir == DMA_TO_DEVICE) { /* Transmit data */ status = scic_sds_stp_request_pio_data_out_transmit_data(sci_req); if (status != SCI_SUCCESS) break; - sci_base_state_machine_change_state(&sci_req->state_machine, - SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_OUT_TRANSMIT_DATA_SUBSTATE); + sci_change_state(&sci_req->sm, SCI_REQ_STP_PIO_DATA_OUT); } break; + case FIS_SETDEVBITS: - sci_base_state_machine_change_state(&sci_req->state_machine, - SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_FRAME_SUBSTATE); + sci_change_state(&sci_req->sm, SCI_REQ_STP_PIO_WAIT_FRAME); break; + case FIS_REGD2H: if (frame_header->status & ATA_BUSY) { - /* Now why is the drive sending a D2H Register FIS when - * it is still busy? Do nothing since we are still in - * the right state. + /* + * Now why is the drive sending a D2H Register + * FIS when it is still busy? Do nothing since + * we are still in the right state. */ dev_dbg(scic_to_dev(scic), "%s: SCIC PIO Request 0x%p received " "D2H Register FIS with BSY status " - "0x%x\n", __func__, stp_req, + "0x%x\n", + __func__, + stp_req, frame_header->status); break; } @@ -1897,9 +1895,9 @@ enum sci_status scic_sds_io_request_frame_handler(struct scic_sds_request *sci_r SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); break; + default: /* FIXME: what do we do here? */ break; @@ -1910,7 +1908,8 @@ enum sci_status scic_sds_io_request_frame_handler(struct scic_sds_request *sci_r return status; } - case SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_IN_AWAIT_DATA_SUBSTATE: { + + case SCI_REQ_STP_PIO_DATA_IN: { struct dev_to_host_fis *frame_header; struct sata_fis_data *frame_buffer; @@ -1920,9 +1919,12 @@ enum sci_status scic_sds_io_request_frame_handler(struct scic_sds_request *sci_r if (status != SCI_SUCCESS) { dev_err(scic_to_dev(scic), - "%s: SCIC IO Request 0x%p could not get frame header " - "for frame index %d, status %x\n", - __func__, stp_req, frame_index, status); + "%s: SCIC IO Request 0x%p could not get frame " + "header for frame index %d, status %x\n", + __func__, + stp_req, + frame_index, + status); return status; } @@ -1930,15 +1932,17 @@ enum sci_status scic_sds_io_request_frame_handler(struct scic_sds_request *sci_r dev_err(scic_to_dev(scic), "%s: SCIC PIO Request 0x%p received frame %d " "with fis type 0x%02x when expecting a data " - "fis.\n", __func__, stp_req, frame_index, + "fis.\n", + __func__, + stp_req, + frame_index, frame_header->fis_type); scic_sds_request_set_status(sci_req, SCU_TASK_DONE_GOOD, SCI_FAILURE_IO_REQUIRES_SCSI_ABORT); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); /* Frame is decoded return it to the controller */ scic_sds_controller_release_frame(scic, frame_index); @@ -1972,15 +1976,14 @@ enum sci_status scic_sds_io_request_frame_handler(struct scic_sds_request *sci_r SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); } else { - sci_base_state_machine_change_state(&sci_req->state_machine, - SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_FRAME_SUBSTATE); + sci_change_state(&sci_req->sm, SCI_REQ_STP_PIO_WAIT_FRAME); } return status; } - case SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_D2H_RESPONSE_FRAME_SUBSTATE: { + + case SCI_REQ_STP_SOFT_RESET_WAIT_D2H: { struct dev_to_host_fis *frame_header; u32 *frame_buffer; @@ -1989,9 +1992,12 @@ enum sci_status scic_sds_io_request_frame_handler(struct scic_sds_request *sci_r (void **)&frame_header); if (status != SCI_SUCCESS) { dev_err(scic_to_dev(scic), - "%s: SCIC IO Request 0x%p could not get frame header " - "for frame index %d, status %x\n", - __func__, stp_req, frame_index, status); + "%s: SCIC IO Request 0x%p could not get frame " + "header for frame index %d, status %x\n", + __func__, + stp_req, + frame_index, + status); return status; } @@ -2010,35 +2016,43 @@ enum sci_status scic_sds_io_request_frame_handler(struct scic_sds_request *sci_r SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); break; + default: dev_warn(scic_to_dev(scic), "%s: IO Request:0x%p Frame Id:%d protocol " - "violation occurred\n", __func__, stp_req, + "violation occurred\n", + __func__, + stp_req, frame_index); - scic_sds_request_set_status(sci_req, SCU_TASK_DONE_UNEXP_FIS, + scic_sds_request_set_status(sci_req, + SCU_TASK_DONE_UNEXP_FIS, SCI_FAILURE_PROTOCOL_VIOLATION); break; } - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); /* Frame has been decoded return it to the controller */ scic_sds_controller_release_frame(scic, frame_index); return status; } - case SCI_BASE_REQUEST_STATE_ABORTING: - /* TODO: Is it even possible to get an unsolicited frame in the + case SCI_REQ_ABORTING: + /* + * TODO: Is it even possible to get an unsolicited frame in the * aborting state? */ scic_sds_controller_release_frame(scic, frame_index); return SCI_SUCCESS; + default: dev_warn(scic_to_dev(scic), - "%s: SCIC IO Request given unexpected frame %x while in " - "state %d\n", __func__, frame_index, state); + "%s: SCIC IO Request given unexpected frame %x while " + "in state %d\n", + __func__, + frame_index, + state); scic_sds_controller_release_frame(scic, frame_index); return SCI_FAILURE_INVALID_STATE; @@ -2075,8 +2089,7 @@ static enum sci_status stp_request_udma_await_tc_event(struct scic_sds_request * * the device so we must change state to wait * for it */ - sci_base_state_machine_change_state(&sci_req->state_machine, - SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_D2H_REG_FIS_SUBSTATE); + sci_change_state(&sci_req->sm, SCI_REQ_STP_UDMA_WAIT_D2H); } break; @@ -2105,45 +2118,45 @@ static enum sci_status stp_request_udma_await_tc_event(struct scic_sds_request * return status; } -static enum sci_status stp_request_soft_reset_await_h2d_asserted_tc_event(struct scic_sds_request *sci_req, - u32 completion_code) +static enum sci_status +stp_request_soft_reset_await_h2d_asserted_tc_event(struct scic_sds_request *sci_req, + u32 completion_code) { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): scic_sds_request_set_status(sci_req, SCU_TASK_DONE_GOOD, SCI_SUCCESS); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_DIAGNOSTIC_COMPLETION_SUBSTATE); + sci_change_state(&sci_req->sm, SCI_REQ_STP_SOFT_RESET_WAIT_H2D_DIAG); break; default: /* - * All other completion status cause the IO to be complete. If a NAK - * was received, then it is up to the user to retry the request. */ + * All other completion status cause the IO to be complete. + * If a NAK was received, then it is up to the user to retry + * the request. + */ scic_sds_request_set_status(sci_req, - SCU_NORMALIZE_COMPLETION_STATUS(completion_code), - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); + SCU_NORMALIZE_COMPLETION_STATUS(completion_code), + SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); break; } return SCI_SUCCESS; } -static enum sci_status stp_request_soft_reset_await_h2d_diagnostic_tc_event( - struct scic_sds_request *sci_req, - u32 completion_code) +static enum sci_status +stp_request_soft_reset_await_h2d_diagnostic_tc_event(struct scic_sds_request *sci_req, + u32 completion_code) { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): scic_sds_request_set_status(sci_req, SCU_TASK_DONE_GOOD, SCI_SUCCESS); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_D2H_RESPONSE_FRAME_SUBSTATE); + sci_change_state(&sci_req->sm, SCI_REQ_STP_SOFT_RESET_WAIT_D2H); break; default: @@ -2155,8 +2168,7 @@ static enum sci_status stp_request_soft_reset_await_h2d_diagnostic_tc_event( SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); break; } @@ -2164,42 +2176,64 @@ static enum sci_status stp_request_soft_reset_await_h2d_diagnostic_tc_event( } enum sci_status -scic_sds_io_request_tc_completion(struct scic_sds_request *sci_req, u32 completion_code) +scic_sds_io_request_tc_completion(struct scic_sds_request *sci_req, + u32 completion_code) { enum sci_base_request_states state; struct scic_sds_controller *scic = sci_req->owning_controller; - state = sci_req->state_machine.current_state_id; + state = sci_req->sm.current_state_id; switch (state) { - case SCI_BASE_REQUEST_STATE_STARTED: - return request_started_state_tc_event(sci_req, completion_code); - case SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION: - return ssp_task_request_await_tc_event(sci_req, completion_code); - case SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_RESPONSE: - return smp_request_await_response_tc_event(sci_req, completion_code); - case SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_TC_COMPLETION: - return smp_request_await_tc_event(sci_req, completion_code); - case SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_TC_COMPLETION_SUBSTATE: - return stp_request_udma_await_tc_event(sci_req, completion_code); - case SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_H2D_COMPLETION_SUBSTATE: - return stp_request_non_data_await_h2d_tc_event(sci_req, completion_code); - case SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_H2D_COMPLETION_SUBSTATE: - return stp_request_pio_await_h2d_completion_tc_event(sci_req, completion_code); - case SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_OUT_TRANSMIT_DATA_SUBSTATE: - return pio_data_out_tx_done_tc_event(sci_req, completion_code); - case SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_ASSERTED_COMPLETION_SUBSTATE: - return stp_request_soft_reset_await_h2d_asserted_tc_event(sci_req, completion_code); - case SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_DIAGNOSTIC_COMPLETION_SUBSTATE: - return stp_request_soft_reset_await_h2d_diagnostic_tc_event(sci_req, completion_code); - case SCI_BASE_REQUEST_STATE_ABORTING: - return request_aborting_state_tc_event(sci_req, completion_code); - default: - dev_warn(scic_to_dev(scic), - "%s: SCIC IO Request given task completion notification %x " - "while in wrong state %d\n", __func__, completion_code, - state); - return SCI_FAILURE_INVALID_STATE; + case SCI_REQ_STARTED: + return request_started_state_tc_event(sci_req, completion_code); + + case SCI_REQ_TASK_WAIT_TC_COMP: + return ssp_task_request_await_tc_event(sci_req, + completion_code); + + case SCI_REQ_SMP_WAIT_RESP: + return smp_request_await_response_tc_event(sci_req, + completion_code); + + case SCI_REQ_SMP_WAIT_TC_COMP: + return smp_request_await_tc_event(sci_req, completion_code); + + case SCI_REQ_STP_UDMA_WAIT_TC_COMP: + return stp_request_udma_await_tc_event(sci_req, + completion_code); + + case SCI_REQ_STP_NON_DATA_WAIT_H2D: + return stp_request_non_data_await_h2d_tc_event(sci_req, + completion_code); + + case SCI_REQ_STP_PIO_WAIT_H2D: + return stp_request_pio_await_h2d_completion_tc_event(sci_req, + completion_code); + + case SCI_REQ_STP_PIO_DATA_OUT: + return pio_data_out_tx_done_tc_event(sci_req, completion_code); + + case SCI_REQ_STP_SOFT_RESET_WAIT_H2D_ASSERTED: + return stp_request_soft_reset_await_h2d_asserted_tc_event(sci_req, + completion_code); + + case SCI_REQ_STP_SOFT_RESET_WAIT_H2D_DIAG: + return stp_request_soft_reset_await_h2d_diagnostic_tc_event(sci_req, + completion_code); + + case SCI_REQ_ABORTING: + return request_aborting_state_tc_event(sci_req, + completion_code); + + default: + dev_warn(scic_to_dev(scic), + "%s: SCIC IO Request given task completion " + "notification %x while in wrong state %d\n", + __func__, + completion_code, + state); + return SCI_FAILURE_INVALID_STATE; } } @@ -2896,7 +2930,7 @@ static void isci_request_io_request_complete(struct isci_host *isci_host, static void scic_sds_request_started_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), state_machine); + struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), sm); struct isci_request *ireq = sci_req_to_ireq(sci_req); struct domain_device *dev = sci_dev_to_domain(sci_req->target_device); struct sas_task *task; @@ -2910,34 +2944,31 @@ static void scic_sds_request_started_state_enter(struct sci_base_state_machine * * substates */ if (!task && dev->dev_type == SAS_END_DEV) { - sci_base_state_machine_change_state(sm, - SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION); + sci_change_state(sm, SCI_REQ_TASK_WAIT_TC_COMP); } else if (!task && (isci_request_access_tmf(ireq)->tmf_code == isci_tmf_sata_srst_high || isci_request_access_tmf(ireq)->tmf_code == isci_tmf_sata_srst_low)) { - sci_base_state_machine_change_state(sm, - SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_ASSERTED_COMPLETION_SUBSTATE); + sci_change_state(sm, SCI_REQ_STP_SOFT_RESET_WAIT_H2D_ASSERTED); } else if (task && task->task_proto == SAS_PROTOCOL_SMP) { - sci_base_state_machine_change_state(sm, - SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_RESPONSE); + sci_change_state(sm, SCI_REQ_SMP_WAIT_RESP); } else if (task && sas_protocol_ata(task->task_proto) && !task->ata_task.use_ncq) { u32 state; if (task->data_dir == DMA_NONE) - state = SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_H2D_COMPLETION_SUBSTATE; + state = SCI_REQ_STP_NON_DATA_WAIT_H2D; else if (task->ata_task.dma_xfer) - state = SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_TC_COMPLETION_SUBSTATE; + state = SCI_REQ_STP_UDMA_WAIT_TC_COMP; else /* PIO */ - state = SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_H2D_COMPLETION_SUBSTATE; + state = SCI_REQ_STP_PIO_WAIT_H2D; - sci_base_state_machine_change_state(sm, state); + sci_change_state(sm, state); } } static void scic_sds_request_completed_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), state_machine); + struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), sm); struct scic_sds_controller *scic = sci_req->owning_controller; struct isci_host *ihost = scic_to_ihost(scic); struct isci_request *ireq = sci_req_to_ireq(sci_req); @@ -2952,7 +2983,7 @@ static void scic_sds_request_completed_state_enter(struct sci_base_state_machine static void scic_sds_request_aborting_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), state_machine); + struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), sm); /* Setting the abort bit in the Task Context is required by the silicon. */ sci_req->task_context_buffer->abort = 1; @@ -2960,7 +2991,7 @@ static void scic_sds_request_aborting_state_enter(struct sci_base_state_machine static void scic_sds_stp_request_started_non_data_await_h2d_completion_enter(struct sci_base_state_machine *sm) { - struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), state_machine); + struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), sm); scic_sds_remote_device_set_working_request(sci_req->target_device, sci_req); @@ -2968,7 +2999,7 @@ static void scic_sds_stp_request_started_non_data_await_h2d_completion_enter(str static void scic_sds_stp_request_started_pio_await_h2d_completion_enter(struct sci_base_state_machine *sm) { - struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), state_machine); + struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), sm); scic_sds_remote_device_set_working_request(sci_req->target_device, sci_req); @@ -2976,7 +3007,7 @@ static void scic_sds_stp_request_started_pio_await_h2d_completion_enter(struct s static void scic_sds_stp_request_started_soft_reset_await_h2d_asserted_completion_enter(struct sci_base_state_machine *sm) { - struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), state_machine); + struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), sm); scic_sds_remote_device_set_working_request(sci_req->target_device, sci_req); @@ -2984,7 +3015,7 @@ static void scic_sds_stp_request_started_soft_reset_await_h2d_asserted_completio static void scic_sds_stp_request_started_soft_reset_await_h2d_diagnostic_completion_enter(struct sci_base_state_machine *sm) { - struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), state_machine); + struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), sm); struct scu_task_context *task_context; struct host_to_dev_fis *h2d_fis; enum sci_status status; @@ -3003,51 +3034,53 @@ static void scic_sds_stp_request_started_soft_reset_await_h2d_diagnostic_complet } static const struct sci_base_state scic_sds_request_state_table[] = { - [SCI_BASE_REQUEST_STATE_INITIAL] = { }, - [SCI_BASE_REQUEST_STATE_CONSTRUCTED] = { }, - [SCI_BASE_REQUEST_STATE_STARTED] = { + [SCI_REQ_INIT] = { }, + [SCI_REQ_CONSTRUCTED] = { }, + [SCI_REQ_STARTED] = { .enter_state = scic_sds_request_started_state_enter, }, - [SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_H2D_COMPLETION_SUBSTATE] = { + [SCI_REQ_STP_NON_DATA_WAIT_H2D] = { .enter_state = scic_sds_stp_request_started_non_data_await_h2d_completion_enter, }, - [SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_D2H_SUBSTATE] = { }, - [SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_H2D_COMPLETION_SUBSTATE] = { + [SCI_REQ_STP_NON_DATA_WAIT_D2H] = { }, + [SCI_REQ_STP_PIO_WAIT_H2D] = { .enter_state = scic_sds_stp_request_started_pio_await_h2d_completion_enter, }, - [SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_FRAME_SUBSTATE] = { }, - [SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_IN_AWAIT_DATA_SUBSTATE] = { }, - [SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_OUT_TRANSMIT_DATA_SUBSTATE] = { }, - [SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_TC_COMPLETION_SUBSTATE] = { }, - [SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_D2H_REG_FIS_SUBSTATE] = { }, - [SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_ASSERTED_COMPLETION_SUBSTATE] = { + [SCI_REQ_STP_PIO_WAIT_FRAME] = { }, + [SCI_REQ_STP_PIO_DATA_IN] = { }, + [SCI_REQ_STP_PIO_DATA_OUT] = { }, + [SCI_REQ_STP_UDMA_WAIT_TC_COMP] = { }, + [SCI_REQ_STP_UDMA_WAIT_D2H] = { }, + [SCI_REQ_STP_SOFT_RESET_WAIT_H2D_ASSERTED] = { .enter_state = scic_sds_stp_request_started_soft_reset_await_h2d_asserted_completion_enter, }, - [SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_DIAGNOSTIC_COMPLETION_SUBSTATE] = { + [SCI_REQ_STP_SOFT_RESET_WAIT_H2D_DIAG] = { .enter_state = scic_sds_stp_request_started_soft_reset_await_h2d_diagnostic_completion_enter, }, - [SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_D2H_RESPONSE_FRAME_SUBSTATE] = { }, - [SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION] = { }, - [SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE] = { }, - [SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_RESPONSE] = { }, - [SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_TC_COMPLETION] = { }, - [SCI_BASE_REQUEST_STATE_COMPLETED] = { + [SCI_REQ_STP_SOFT_RESET_WAIT_D2H] = { }, + [SCI_REQ_TASK_WAIT_TC_COMP] = { }, + [SCI_REQ_TASK_WAIT_TC_RESP] = { }, + [SCI_REQ_SMP_WAIT_RESP] = { }, + [SCI_REQ_SMP_WAIT_TC_COMP] = { }, + [SCI_REQ_COMPLETED] = { .enter_state = scic_sds_request_completed_state_enter, }, - [SCI_BASE_REQUEST_STATE_ABORTING] = { + [SCI_REQ_ABORTING] = { .enter_state = scic_sds_request_aborting_state_enter, }, - [SCI_BASE_REQUEST_STATE_FINAL] = { }, + [SCI_REQ_FINAL] = { }, }; -static void scic_sds_general_request_construct(struct scic_sds_controller *scic, - struct scic_sds_remote_device *sci_dev, - u16 io_tag, struct scic_sds_request *sci_req) +static void +scic_sds_general_request_construct(struct scic_sds_controller *scic, + struct scic_sds_remote_device *sci_dev, + u16 io_tag, + struct scic_sds_request *sci_req) { - sci_base_state_machine_construct(&sci_req->state_machine, + sci_base_state_machine_construct(&sci_req->sm, scic_sds_request_state_table, - SCI_BASE_REQUEST_STATE_INITIAL); - sci_base_state_machine_start(&sci_req->state_machine); + SCI_REQ_INIT); + sci_base_state_machine_start(&sci_req->sm); sci_req->io_tag = io_tag; sci_req->owning_controller = scic; @@ -3322,8 +3355,7 @@ scic_io_request_construct_smp(struct scic_sds_request *sci_req) scu_smp_request_construct_task_context(sci_req, smp_req->req_len); - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_CONSTRUCTED); + sci_change_state(&sci_req->sm, SCI_REQ_CONSTRUCTED); return SCI_SUCCESS; } diff --git a/drivers/scsi/isci/request.h b/drivers/scsi/isci/request.h index 31d6d571747..757cd99ae2e 100644 --- a/drivers/scsi/isci/request.h +++ b/drivers/scsi/isci/request.h @@ -96,37 +96,42 @@ struct scic_sds_stp_request { u32 udma; struct scic_sds_stp_pio_request { - /** - * Total transfer for the entire PIO request recorded at request constuction - * time. + /* + * Total transfer for the entire PIO request recorded + * at request constuction time. * - * @todo Should we just decrement this value for each byte of data transitted - * or received to elemenate the current_transfer_bytes field? + * @todo Should we just decrement this value for each + * byte of data transitted or received to elemenate + * the current_transfer_bytes field? */ u32 total_transfer_bytes; - /** - * Total number of bytes received/transmitted in data frames since the start - * of the IO request. At the end of the IO request this should equal the + /* + * Total number of bytes received/transmitted in data + * frames since the start of the IO request. At the + * end of the IO request this should equal the * total_transfer_bytes. */ u32 current_transfer_bytes; - /** - * The number of bytes requested in the in the PIO setup. + /* + * The number of bytes requested in the in the PIO + * setup. */ u32 pio_transfer_bytes; - /** - * PIO Setup ending status value to tell us if we need to wait for another FIS - * or if the transfer is complete. On the receipt of a D2H FIS this will be + /* + * PIO Setup ending status value to tell us if we need + * to wait for another FIS or if the transfer is + * complete. On the receipt of a D2H FIS this will be * the status field of that FIS. */ u8 ending_status; - /** - * On receipt of a D2H FIS this will be the ending error field if the - * ending_status has the SATA_STATUS_ERR bit set. + /* + * On receipt of a D2H FIS this will be the ending + * error field if the ending_status has the + * SATA_STATUS_ERR bit set. */ u8 ending_error; @@ -138,8 +143,9 @@ struct scic_sds_stp_request { } pio; struct { - /** - * The number of bytes requested in the PIO setup before CDB data frame. + /* + * The number of bytes requested in the PIO setup + * before CDB data frame. */ u32 device_preferred_cdb_length; } packet; @@ -147,57 +153,59 @@ struct scic_sds_stp_request { }; struct scic_sds_request { - /** - * This field contains the information for the base request state machine. + /* + * This field contains the information for the base request state + * machine. */ - struct sci_base_state_machine state_machine; + struct sci_base_state_machine sm; - /** + /* * This field simply points to the controller to which this IO request * is associated. */ struct scic_sds_controller *owning_controller; - /** - * This field simply points to the remote device to which this IO request - * is associated. + /* + * This field simply points to the remote device to which this IO + * request is associated. */ struct scic_sds_remote_device *target_device; - /** + /* * This field is utilized to determine if the SCI user is managing * the IO tag for this request or if the core is managing it. */ bool was_tag_assigned_by_user; - /** + /* * This field indicates the IO tag for this request. The IO tag is * comprised of the task_index and a sequence count. The sequence count * is utilized to help identify tasks from one life to another. */ u16 io_tag; - /** + /* * This field specifies the protocol being utilized for this * IO request. */ enum sci_request_protocol protocol; - /** + /* * This field indicates the completion status taken from the SCUs - * completion code. It indicates the completion result for the SCU hardware. + * completion code. It indicates the completion result for the SCU + * hardware. */ u32 scu_status; - /** - * This field indicates the completion status returned to the SCI user. It - * indicates the users view of the io request completion. + /* + * This field indicates the completion status returned to the SCI user. + * It indicates the users view of the io request completion. */ u32 sci_status; - /** - * This field contains the value to be utilized when posting (e.g. Post_TC, - * Post_TC_Abort) this request to the silicon. + /* + * This field contains the value to be utilized when posting + * (e.g. Post_TC, * Post_TC_Abort) this request to the silicon. */ u32 post_context; @@ -208,26 +216,26 @@ struct scic_sds_request { #define SCU_SGL_SIZE ((SCU_IO_REQUEST_SGE_COUNT + 1) / 2) struct scu_sgl_element_pair sg_table[SCU_SGL_SIZE] __attribute__ ((aligned(32))); - /** + /* * This field indicates if this request is a task management request or * normal IO request. */ bool is_task_management_request; - /** - * This field is a pointer to the stored rx frame data. It is used in STP - * internal requests and SMP response frames. If this field is non-NULL the - * saved frame must be released on IO request completion. + /* + * This field is a pointer to the stored rx frame data. It is used in + * STP internal requests and SMP response frames. If this field is + * non-NULL the saved frame must be released on IO request completion. * * @todo In the future do we want to keep a list of RX frame buffers? */ u32 saved_rx_frame_index; - /** - * This field in the recorded device sequence for the io request. This is - * recorded during the build operation and is compared in the start - * operation. If the sequence is different then there was a change of - * devices from the build to start operations. + /* + * This field in the recorded device sequence for the io request. + * This is recorded during the build operation and is compared in the + * start operation. If the sequence is different then there was a + * change of devices from the build to start operations. */ u8 device_sequence; @@ -286,7 +294,7 @@ struct isci_request { dma_addr_t request_daddr; dma_addr_t zero_scatter_daddr; - unsigned int num_sg_entries; /* returned by pci_alloc_sg */ + unsigned int num_sg_entries; /* returned by pci_alloc_sg */ /** Note: "io_request_completion" is completed in two different ways * depending on whether this is a TMF or regular request. @@ -315,104 +323,105 @@ static inline struct isci_request *sci_req_to_ireq(struct scic_sds_request *sci_ * */ enum sci_base_request_states { - /** + /* * Simply the initial state for the base request state machine. */ - SCI_BASE_REQUEST_STATE_INITIAL, + SCI_REQ_INIT, - /** - * This state indicates that the request has been constructed. This state - * is entered from the INITIAL state. + /* + * This state indicates that the request has been constructed. + * This state is entered from the INITIAL state. */ - SCI_BASE_REQUEST_STATE_CONSTRUCTED, + SCI_REQ_CONSTRUCTED, - /** - * This state indicates that the request has been started. This state is - * entered from the CONSTRUCTED state. + /* + * This state indicates that the request has been started. This state + * is entered from the CONSTRUCTED state. */ - SCI_BASE_REQUEST_STATE_STARTED, + SCI_REQ_STARTED, - SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_TC_COMPLETION_SUBSTATE, - SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_D2H_REG_FIS_SUBSTATE, + SCI_REQ_STP_UDMA_WAIT_TC_COMP, + SCI_REQ_STP_UDMA_WAIT_D2H, - SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_H2D_COMPLETION_SUBSTATE, - SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_D2H_SUBSTATE, + SCI_REQ_STP_NON_DATA_WAIT_H2D, + SCI_REQ_STP_NON_DATA_WAIT_D2H, - SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_ASSERTED_COMPLETION_SUBSTATE, - SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_DIAGNOSTIC_COMPLETION_SUBSTATE, - SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_D2H_RESPONSE_FRAME_SUBSTATE, + SCI_REQ_STP_SOFT_RESET_WAIT_H2D_ASSERTED, + SCI_REQ_STP_SOFT_RESET_WAIT_H2D_DIAG, + SCI_REQ_STP_SOFT_RESET_WAIT_D2H, - /** - * While in this state the IO request object is waiting for the TC completion - * notification for the H2D Register FIS + /* + * While in this state the IO request object is waiting for the TC + * completion notification for the H2D Register FIS */ - SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_H2D_COMPLETION_SUBSTATE, + SCI_REQ_STP_PIO_WAIT_H2D, - /** - * While in this state the IO request object is waiting for either a PIO Setup - * FIS or a D2H register FIS. The type of frame received is based on the - * result of the prior frame and line conditions. + /* + * While in this state the IO request object is waiting for either a + * PIO Setup FIS or a D2H register FIS. The type of frame received is + * based on the result of the prior frame and line conditions. */ - SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_FRAME_SUBSTATE, + SCI_REQ_STP_PIO_WAIT_FRAME, - /** - * While in this state the IO request object is waiting for a DATA frame from - * the device. + /* + * While in this state the IO request object is waiting for a DATA + * frame from the device. */ - SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_IN_AWAIT_DATA_SUBSTATE, + SCI_REQ_STP_PIO_DATA_IN, - /** - * While in this state the IO request object is waiting to transmit the next data - * frame to the device. + /* + * While in this state the IO request object is waiting to transmit + * the next data frame to the device. */ - SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_OUT_TRANSMIT_DATA_SUBSTATE, + SCI_REQ_STP_PIO_DATA_OUT, - /** + /* * The AWAIT_TC_COMPLETION sub-state indicates that the started raw * task management request is waiting for the transmission of the * initial frame (i.e. command, task, etc.). */ - SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION, + SCI_REQ_TASK_WAIT_TC_COMP, - /** + /* * This sub-state indicates that the started task management request * is waiting for the reception of an unsolicited frame * (i.e. response IU). */ - SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE, + SCI_REQ_TASK_WAIT_TC_RESP, - /** + /* * This sub-state indicates that the started task management request * is waiting for the reception of an unsolicited frame * (i.e. response IU). */ - SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_RESPONSE, + SCI_REQ_SMP_WAIT_RESP, - /** - * The AWAIT_TC_COMPLETION sub-state indicates that the started SMP request is - * waiting for the transmission of the initial frame (i.e. command, task, etc.). + /* + * The AWAIT_TC_COMPLETION sub-state indicates that the started SMP + * request is waiting for the transmission of the initial frame + * (i.e. command, task, etc.). */ - SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_TC_COMPLETION, + SCI_REQ_SMP_WAIT_TC_COMP, - /** + /* * This state indicates that the request has completed. - * This state is entered from the STARTED state. This state is entered from - * the ABORTING state. + * This state is entered from the STARTED state. This state is entered + * from the ABORTING state. */ - SCI_BASE_REQUEST_STATE_COMPLETED, + SCI_REQ_COMPLETED, - /** + /* * This state indicates that the request is in the process of being * terminated/aborted. * This state is entered from the CONSTRUCTED state. * This state is entered from the STARTED state. */ - SCI_BASE_REQUEST_STATE_ABORTING, + SCI_REQ_ABORTING, - /** + /* * Simply the final state for the base request state machine. */ - SCI_BASE_REQUEST_STATE_FINAL, + SCI_REQ_FINAL, }; /** @@ -498,13 +507,18 @@ enum sci_base_request_states { enum sci_status scic_sds_request_start(struct scic_sds_request *sci_req); enum sci_status scic_sds_io_request_terminate(struct scic_sds_request *sci_req); -enum sci_status scic_sds_io_request_event_handler(struct scic_sds_request *sci_req, - u32 event_code); -enum sci_status scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, - u32 frame_index); -enum sci_status scic_sds_task_request_terminate(struct scic_sds_request *sci_req); -extern enum sci_status scic_sds_request_complete(struct scic_sds_request *sci_req); -extern enum sci_status scic_sds_io_request_tc_completion(struct scic_sds_request *sci_req, u32 code); +enum sci_status +scic_sds_io_request_event_handler(struct scic_sds_request *sci_req, + u32 event_code); +enum sci_status +scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, + u32 frame_index); +enum sci_status +scic_sds_task_request_terminate(struct scic_sds_request *sci_req); +extern enum sci_status +scic_sds_request_complete(struct scic_sds_request *sci_req); +extern enum sci_status +scic_sds_io_request_tc_completion(struct scic_sds_request *sci_req, u32 code); /* XXX open code in caller */ static inline void *scic_request_get_virt_addr(struct scic_sds_request *sci_req, @@ -523,8 +537,8 @@ static inline void *scic_request_get_virt_addr(struct scic_sds_request *sci_req, } /* XXX open code in caller */ -static inline dma_addr_t scic_io_request_get_dma_addr(struct scic_sds_request *sci_req, - void *virt_addr) +static inline dma_addr_t +scic_io_request_get_dma_addr(struct scic_sds_request *sci_req, void *virt_addr) { struct isci_request *ireq = sci_req_to_ireq(sci_req); @@ -543,9 +557,8 @@ static inline dma_addr_t scic_io_request_get_dma_addr(struct scic_sds_request *s * * status of the object as a isci_request_status enum. */ -static inline -enum isci_request_status isci_request_get_state( - struct isci_request *isci_request) +static inline enum isci_request_status +isci_request_get_state(struct isci_request *isci_request) { BUG_ON(isci_request == NULL); @@ -566,9 +579,9 @@ enum isci_request_status isci_request_get_state( * @status: This Parameter is the new status of the object * */ -static inline enum isci_request_status isci_request_change_state( - struct isci_request *isci_request, - enum isci_request_status status) +static inline enum isci_request_status +isci_request_change_state(struct isci_request *isci_request, + enum isci_request_status status) { enum isci_request_status old_state; unsigned long flags; @@ -597,10 +610,10 @@ static inline enum isci_request_status isci_request_change_state( * * state previous to any change. */ -static inline enum isci_request_status isci_request_change_started_to_newstate( - struct isci_request *isci_request, - struct completion *completion_ptr, - enum isci_request_status newstate) +static inline enum isci_request_status +isci_request_change_started_to_newstate(struct isci_request *isci_request, + struct completion *completion_ptr, + enum isci_request_status newstate) { enum isci_request_status old_state; unsigned long flags; @@ -615,6 +628,7 @@ static inline enum isci_request_status isci_request_change_started_to_newstate( isci_request->io_request_completion = completion_ptr; isci_request->status = newstate; } + spin_unlock_irqrestore(&isci_request->state_lock, flags); dev_dbg(&isci_request->isci_host->pdev->dev, @@ -635,13 +649,13 @@ static inline enum isci_request_status isci_request_change_started_to_newstate( * * state previous to any change. */ -static inline enum isci_request_status isci_request_change_started_to_aborted( - struct isci_request *isci_request, - struct completion *completion_ptr) +static inline enum isci_request_status +isci_request_change_started_to_aborted(struct isci_request *isci_request, + struct completion *completion_ptr) { - return isci_request_change_started_to_newstate( - isci_request, completion_ptr, aborted - ); + return isci_request_change_started_to_newstate(isci_request, + completion_ptr, + aborted); } /** * isci_request_free() - This function frees the request object. @@ -649,62 +663,33 @@ static inline enum isci_request_status isci_request_change_started_to_aborted( * @isci_request: This parameter points to the isci_request object * */ -static inline void isci_request_free( - struct isci_host *isci_host, - struct isci_request *isci_request) +static inline void isci_request_free(struct isci_host *isci_host, + struct isci_request *isci_request) { if (!isci_request) return; /* release the dma memory if we fail. */ - dma_pool_free(isci_host->dma_pool, isci_request, + dma_pool_free(isci_host->dma_pool, + isci_request, isci_request->request_daddr); } +#define isci_request_access_task(req) ((req)->ttype_ptr.io_task_ptr) -/* #define ISCI_REQUEST_VALIDATE_ACCESS - */ - -#ifdef ISCI_REQUEST_VALIDATE_ACCESS - -static inline -struct sas_task *isci_request_access_task(struct isci_request *isci_request) -{ - BUG_ON(isci_request->ttype != io_task); - return isci_request->ttype_ptr.io_task_ptr; -} - -static inline -struct isci_tmf *isci_request_access_tmf(struct isci_request *isci_request) -{ - BUG_ON(isci_request->ttype != tmf_task); - return isci_request->ttype_ptr.tmf_task_ptr; -} - -#else /* not ISCI_REQUEST_VALIDATE_ACCESS */ - -#define isci_request_access_task(RequestPtr) \ - ((RequestPtr)->ttype_ptr.io_task_ptr) - -#define isci_request_access_tmf(RequestPtr) \ - ((RequestPtr)->ttype_ptr.tmf_task_ptr) - -#endif /* not ISCI_REQUEST_VALIDATE_ACCESS */ - +#define isci_request_access_tmf(req) ((req)->ttype_ptr.tmf_task_ptr) -int isci_request_alloc_tmf( - struct isci_host *isci_host, - struct isci_tmf *isci_tmf, - struct isci_request **isci_request, - struct isci_remote_device *isci_device, - gfp_t gfp_flags); +int isci_request_alloc_tmf(struct isci_host *isci_host, + struct isci_tmf *isci_tmf, + struct isci_request **isci_request, + struct isci_remote_device *isci_device, + gfp_t gfp_flags); -int isci_request_execute( - struct isci_host *isci_host, - struct sas_task *task, - struct isci_request **request, - gfp_t gfp_flags); +int isci_request_execute(struct isci_host *isci_host, + struct sas_task *task, + struct isci_request **request, + gfp_t gfp_flags); /** * isci_request_unmap_sgl() - This function unmaps the DMA address of a given @@ -713,9 +698,8 @@ int isci_request_execute( * @*pdev: This Parameter is the pci_device struct for the controller * */ -static inline void isci_request_unmap_sgl( - struct isci_request *request, - struct pci_dev *pdev) +static inline void +isci_request_unmap_sgl(struct isci_request *request, struct pci_dev *pdev) { struct sas_task *task = isci_request_access_task(request); @@ -758,9 +742,9 @@ static inline void isci_request_unmap_sgl( * * pointer to the next sge for specified request. */ -static inline void *isci_request_io_request_get_next_sge( - struct isci_request *request, - void *current_sge_address) +static inline void * +isci_request_io_request_get_next_sge(struct isci_request *request, + void *current_sge_address) { struct sas_task *task = isci_request_access_task(request); void *ret = NULL; @@ -791,15 +775,20 @@ static inline void *isci_request_io_request_get_next_sge( return ret; } -void isci_terminate_pending_requests(struct isci_host *isci_host, - struct isci_remote_device *isci_device, - enum isci_request_status new_request_state); -enum sci_status scic_task_request_construct(struct scic_sds_controller *scic, - struct scic_sds_remote_device *sci_dev, - u16 io_tag, - struct scic_sds_request *sci_req); -enum sci_status scic_task_request_construct_ssp(struct scic_sds_request *sci_req); -enum sci_status scic_task_request_construct_sata(struct scic_sds_request *sci_req); -void scic_stp_io_request_set_ncq_tag(struct scic_sds_request *sci_req, u16 ncq_tag); +void +isci_terminate_pending_requests(struct isci_host *isci_host, + struct isci_remote_device *isci_device, + enum isci_request_status new_request_state); +enum sci_status +scic_task_request_construct(struct scic_sds_controller *scic, + struct scic_sds_remote_device *sci_dev, + u16 io_tag, + struct scic_sds_request *sci_req); +enum sci_status +scic_task_request_construct_ssp(struct scic_sds_request *sci_req); +enum sci_status +scic_task_request_construct_sata(struct scic_sds_request *sci_req); +void +scic_stp_io_request_set_ncq_tag(struct scic_sds_request *sci_req, u16 ncq_tag); void scic_sds_smp_request_copy_response(struct scic_sds_request *sci_req); #endif /* !defined(_ISCI_REQUEST_H_) */ diff --git a/drivers/scsi/isci/state_machine.c b/drivers/scsi/isci/state_machine.c index 1bcd925e502..8cfefb959f2 100644 --- a/drivers/scsi/isci/state_machine.c +++ b/drivers/scsi/isci/state_machine.c @@ -127,16 +127,7 @@ void sci_base_state_machine_stop( sci_state_machine_exit_state(sm); } -/** - * This method performs an update to the current state of the state machine. - * @sm: This parameter specifies the state machine for which - * the caller wishes to perform a state change. - * @next_state: This parameter specifies the new state for the state machine. - * - */ -void sci_base_state_machine_change_state( - struct sci_base_state_machine *sm, - u32 next_state) +void sci_change_state(struct sci_base_state_machine *sm, u32 next_state) { sci_state_machine_exit_state(sm); @@ -145,18 +136,3 @@ void sci_base_state_machine_change_state( sci_state_machine_enter_state(sm); } - -/** - * This method simply returns the current state of the state machine to the - * caller. - * @sm: This parameter specifies the state machine for which to - * retrieve the current state. - * - * This method returns a u32 value indicating the current state for the - * supplied state machine. - */ -u32 sci_base_state_machine_get_state(struct sci_base_state_machine *sm) -{ - return sm->current_state_id; -} - diff --git a/drivers/scsi/isci/state_machine.h b/drivers/scsi/isci/state_machine.h index 067ed9126bf..6cb55a0adc5 100644 --- a/drivers/scsi/isci/state_machine.h +++ b/drivers/scsi/isci/state_machine.h @@ -117,8 +117,6 @@ void sci_base_state_machine_construct(struct sci_base_state_machine *sm, u32 initial_state); void sci_base_state_machine_start(struct sci_base_state_machine *sm); void sci_base_state_machine_stop(struct sci_base_state_machine *sm); -void sci_base_state_machine_change_state(struct sci_base_state_machine *sm, - u32 next_state); -u32 sci_base_state_machine_get_state(struct sci_base_state_machine *sm); +void sci_change_state(struct sci_base_state_machine *sm, u32 next_state); #endif /* _SCI_BASE_STATE_MACHINE_H_ */ -- cgit v1.2.3-70-g09d2 From 61aaff49e20fdb700f1300a49962bc76effc77fc Mon Sep 17 00:00:00 2001 From: Jeff Skirvin Date: Tue, 21 Jun 2011 12:16:33 -0700 Subject: isci: filter broadcast change notifications during SMP phy resets When resetting a sata device in the domain we have seen occasions where libsas prematurely marks a device gone in the time it takes for the device to re-establish the link. This plays badly with software raid arrays. Other libsas drivers have non-uniform delays in their reset handlers to try to cover this condition, but not sufficient to close the hole. Given that a sata device can take many seconds to recover we filter bcns and poll for the device reattach state before notifying libsas that the port needs the domain to be rediscovered. Once this has been proven out at the lldd level we can think about uplevelling this feature to a common implementation in libsas. Signed-off-by: Jeff Skirvin [ use kzalloc instead of kmem_cache ] Signed-off-by: Dave Jiang [ use eventq and time macros ] Signed-off-by: Dan Williams --- drivers/scsi/isci/port.c | 115 +++++++++++++-------- drivers/scsi/isci/port.h | 5 + drivers/scsi/isci/task.c | 259 ++++++++++++++++++++++++++++++++++++++++++++++- 3 files changed, 338 insertions(+), 41 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 74f06f3c073..2946eee8e70 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -152,6 +152,71 @@ static enum sci_status scic_port_get_properties(struct scic_sds_port *port, return SCI_SUCCESS; } +static void scic_port_bcn_enable(struct scic_sds_port *sci_port) +{ + struct scic_sds_phy *sci_phy; + u32 val; + int i; + + for (i = 0; i < ARRAY_SIZE(sci_port->phy_table); i++) { + sci_phy = sci_port->phy_table[i]; + if (!sci_phy) + continue; + val = readl(&sci_phy->link_layer_registers->link_layer_control); + /* clear the bit by writing 1. */ + writel(val, &sci_phy->link_layer_registers->link_layer_control); + } +} + +/* called under scic_lock to stabilize phy:port associations */ +void isci_port_bcn_enable(struct isci_host *ihost, struct isci_port *iport) +{ + int i; + + clear_bit(IPORT_BCN_BLOCKED, &iport->flags); + wake_up(&ihost->eventq); + + if (!test_and_clear_bit(IPORT_BCN_PENDING, &iport->flags)) + return; + + for (i = 0; i < ARRAY_SIZE(iport->sci.phy_table); i++) { + struct scic_sds_phy *sci_phy = iport->sci.phy_table[i]; + struct isci_phy *iphy = sci_phy_to_iphy(sci_phy); + + if (!sci_phy) + continue; + + ihost->sas_ha.notify_port_event(&iphy->sas_phy, + PORTE_BROADCAST_RCVD); + break; + } +} + +void isci_port_bc_change_received(struct isci_host *ihost, + struct scic_sds_port *sci_port, + struct scic_sds_phy *sci_phy) +{ + struct isci_phy *iphy = sci_phy_to_iphy(sci_phy); + struct isci_port *iport = iphy->isci_port; + + if (iport && test_bit(IPORT_BCN_BLOCKED, &iport->flags)) { + dev_dbg(&ihost->pdev->dev, + "%s: disabled BCN; isci_phy = %p, sas_phy = %p\n", + __func__, iphy, &iphy->sas_phy); + set_bit(IPORT_BCN_PENDING, &iport->flags); + atomic_inc(&iport->event); + wake_up(&ihost->eventq); + } else { + dev_dbg(&ihost->pdev->dev, + "%s: isci_phy = %p, sas_phy = %p\n", + __func__, iphy, &iphy->sas_phy); + + ihost->sas_ha.notify_port_event(&iphy->sas_phy, + PORTE_BROADCAST_RCVD); + } + scic_port_bcn_enable(sci_port); +} + static void isci_port_link_up(struct isci_host *isci_host, struct scic_sds_port *port, struct scic_sds_phy *phy) @@ -240,13 +305,15 @@ static void isci_port_link_down(struct isci_host *isci_host, if (isci_port) { /* check to see if this is the last phy on this port. */ - if (isci_phy->sas_phy.port - && isci_phy->sas_phy.port->num_phys == 1) { - - /* change the state for all devices on this port. - * The next task sent to this device will be returned - * as SAS_TASK_UNDELIVERED, and the scsi mid layer - * will remove the target + if (isci_phy->sas_phy.port && + isci_phy->sas_phy.port->num_phys == 1) { + atomic_inc(&isci_port->event); + isci_port_bcn_enable(isci_host, isci_port); + + /* change the state for all devices on this port. The + * next task sent to this device will be returned as + * SAS_TASK_UNDELIVERED, and the scsi mid layer will + * remove the target */ list_for_each_entry(isci_device, &isci_port->remote_dev_list, @@ -1033,26 +1100,6 @@ enum sas_linkrate scic_sds_port_get_max_allowed_speed( return max_allowed_speed; } -static void scic_port_enable_broadcast_change_notification(struct scic_sds_port *port) -{ - struct scic_sds_phy *phy; - u32 register_value; - u8 index; - - /* Loop through all of the phys to enable BCN. */ - for (index = 0; index < SCI_MAX_PHYS; index++) { - phy = port->phy_table[index]; - if (phy != NULL) { - register_value = - readl(&phy->link_layer_registers->link_layer_control); - - /* clear the bit by writing 1. */ - writel(register_value, - &phy->link_layer_registers->link_layer_control); - } - } -} - /** * * @sci_port: This is the struct scic_sds_port object to suspend. @@ -1838,6 +1885,7 @@ void isci_port_init(struct isci_port *iport, struct isci_host *ihost, int index) init_completion(&iport->start_complete); iport->isci_host = ihost; isci_port_change_state(iport, isci_freed); + atomic_set(&iport->event, 0); } /** @@ -1852,19 +1900,6 @@ enum isci_status isci_port_get_state( return isci_port->status; } -static void isci_port_bc_change_received(struct isci_host *ihost, - struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) -{ - struct isci_phy *iphy = sci_phy_to_iphy(sci_phy); - - dev_dbg(&ihost->pdev->dev, "%s: iphy = %p, sas_phy = %p\n", - __func__, iphy, &iphy->sas_phy); - - ihost->sas_ha.notify_port_event(&iphy->sas_phy, PORTE_BROADCAST_RCVD); - scic_port_enable_broadcast_change_notification(sci_port); -} - void scic_sds_port_broadcast_change_received( struct scic_sds_port *sci_port, struct scic_sds_phy *sci_phy) diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index fee6d80df76..45c01f80bf8 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -173,6 +173,10 @@ struct scic_sds_port { */ struct isci_port { enum isci_status status; + #define IPORT_BCN_BLOCKED 0 + #define IPORT_BCN_PENDING 1 + unsigned long flags; + atomic_t event; struct isci_host *isci_host; struct asd_sas_port sas_port; struct list_head remote_dev_list; @@ -334,6 +338,7 @@ void scic_sds_port_setup_transports( struct scic_sds_port *sci_port, u32 device_id); +void isci_port_bcn_enable(struct isci_host *, struct isci_port *); void scic_sds_port_deactivate_phy( struct scic_sds_port *sci_port, diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index 69f17b98e4f..709c0817174 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -56,6 +56,7 @@ #include #include #include "sas.h" +#include #include "remote_device.h" #include "remote_node_context.h" #include "isci.h" @@ -1397,11 +1398,250 @@ isci_task_request_complete(struct isci_host *ihost, complete(tmf_complete); } +static void isci_smp_task_timedout(unsigned long _task) +{ + struct sas_task *task = (void *) _task; + unsigned long flags; + + spin_lock_irqsave(&task->task_state_lock, flags); + if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) + task->task_state_flags |= SAS_TASK_STATE_ABORTED; + spin_unlock_irqrestore(&task->task_state_lock, flags); + + complete(&task->completion); +} + +static void isci_smp_task_done(struct sas_task *task) +{ + if (!del_timer(&task->timer)) + return; + complete(&task->completion); +} + +static struct sas_task *isci_alloc_task(void) +{ + struct sas_task *task = kzalloc(sizeof(*task), GFP_KERNEL); + + if (task) { + INIT_LIST_HEAD(&task->list); + spin_lock_init(&task->task_state_lock); + task->task_state_flags = SAS_TASK_STATE_PENDING; + init_timer(&task->timer); + init_completion(&task->completion); + } + + return task; +} + +static void isci_free_task(struct isci_host *ihost, struct sas_task *task) +{ + if (task) { + BUG_ON(!list_empty(&task->list)); + kfree(task); + } +} + +static int isci_smp_execute_task(struct isci_host *ihost, + struct domain_device *dev, void *req, + int req_size, void *resp, int resp_size) +{ + int res, retry; + struct sas_task *task = NULL; + + for (retry = 0; retry < 3; retry++) { + task = isci_alloc_task(); + if (!task) + return -ENOMEM; + + task->dev = dev; + task->task_proto = dev->tproto; + sg_init_one(&task->smp_task.smp_req, req, req_size); + sg_init_one(&task->smp_task.smp_resp, resp, resp_size); + + task->task_done = isci_smp_task_done; + + task->timer.data = (unsigned long) task; + task->timer.function = isci_smp_task_timedout; + task->timer.expires = jiffies + 10*HZ; + add_timer(&task->timer); + + res = isci_task_execute_task(task, 1, GFP_KERNEL); + + if (res) { + del_timer(&task->timer); + dev_err(&ihost->pdev->dev, + "%s: executing SMP task failed:%d\n", + __func__, res); + goto ex_err; + } + + wait_for_completion(&task->completion); + res = -ECOMM; + if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) { + dev_err(&ihost->pdev->dev, + "%s: smp task timed out or aborted\n", + __func__); + isci_task_abort_task(task); + if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { + dev_err(&ihost->pdev->dev, + "%s: SMP task aborted and not done\n", + __func__); + goto ex_err; + } + } + if (task->task_status.resp == SAS_TASK_COMPLETE && + task->task_status.stat == SAM_STAT_GOOD) { + res = 0; + break; + } + if (task->task_status.resp == SAS_TASK_COMPLETE && + task->task_status.stat == SAS_DATA_UNDERRUN) { + /* no error, but return the number of bytes of + * underrun */ + res = task->task_status.residual; + break; + } + if (task->task_status.resp == SAS_TASK_COMPLETE && + task->task_status.stat == SAS_DATA_OVERRUN) { + res = -EMSGSIZE; + break; + } else { + dev_err(&ihost->pdev->dev, + "%s: task to dev %016llx response: 0x%x " + "status 0x%x\n", __func__, + SAS_ADDR(dev->sas_addr), + task->task_status.resp, + task->task_status.stat); + isci_free_task(ihost, task); + task = NULL; + } + } +ex_err: + BUG_ON(retry == 3 && task != NULL); + isci_free_task(ihost, task); + return res; +} + +#define DISCOVER_REQ_SIZE 16 +#define DISCOVER_RESP_SIZE 56 + +int isci_smp_get_phy_attached_dev_type(struct isci_host *ihost, + struct domain_device *dev, + int phy_id, int *adt) +{ + struct smp_resp *disc_resp; + u8 *disc_req; + int res; + + disc_resp = kzalloc(DISCOVER_RESP_SIZE, GFP_KERNEL); + if (!disc_resp) + return -ENOMEM; + + disc_req = kzalloc(DISCOVER_REQ_SIZE, GFP_KERNEL); + if (disc_req) { + disc_req[0] = SMP_REQUEST; + disc_req[1] = SMP_DISCOVER; + disc_req[9] = phy_id; + } else { + kfree(disc_resp); + return -ENOMEM; + } + res = isci_smp_execute_task(ihost, dev, disc_req, DISCOVER_REQ_SIZE, + disc_resp, DISCOVER_RESP_SIZE); + if (!res) { + if (disc_resp->result != SMP_RESP_FUNC_ACC) + res = disc_resp->result; + else + *adt = disc_resp->disc.attached_dev_type; + } + kfree(disc_req); + kfree(disc_resp); + + return res; +} + +static void isci_wait_for_smp_phy_reset(struct isci_remote_device *idev, int phy_num) +{ + struct domain_device *dev = idev->domain_dev; + struct isci_port *iport = idev->isci_port; + struct isci_host *ihost = iport->isci_host; + int res, iteration = 0, attached_device_type; + #define STP_WAIT_MSECS 25000 + unsigned long tmo = msecs_to_jiffies(STP_WAIT_MSECS); + unsigned long deadline = jiffies + tmo; + enum { + SMP_PHYWAIT_PHYDOWN, + SMP_PHYWAIT_PHYUP, + SMP_PHYWAIT_DONE + } phy_state = SMP_PHYWAIT_PHYDOWN; + + /* While there is time, wait for the phy to go away and come back */ + while (time_is_after_jiffies(deadline) && phy_state != SMP_PHYWAIT_DONE) { + int event = atomic_read(&iport->event); + + ++iteration; + + tmo = wait_event_timeout(ihost->eventq, + event != atomic_read(&iport->event) || + !test_bit(IPORT_BCN_BLOCKED, &iport->flags), + tmo); + /* link down, stop polling */ + if (!test_bit(IPORT_BCN_BLOCKED, &iport->flags)) + break; + + dev_dbg(&ihost->pdev->dev, + "%s: iport %p, iteration %d," + " phase %d: time_remaining %lu, bcns = %d\n", + __func__, iport, iteration, phy_state, + tmo, test_bit(IPORT_BCN_PENDING, &iport->flags)); + + res = isci_smp_get_phy_attached_dev_type(ihost, dev, phy_num, + &attached_device_type); + tmo = deadline - jiffies; + + if (res) { + dev_warn(&ihost->pdev->dev, + "%s: iteration %d, phase %d:" + " SMP error=%d, time_remaining=%lu\n", + __func__, iteration, phy_state, res, tmo); + break; + } + dev_dbg(&ihost->pdev->dev, + "%s: iport %p, iteration %d," + " phase %d: time_remaining %lu, bcns = %d, " + "attdevtype = %x\n", + __func__, iport, iteration, phy_state, + tmo, test_bit(IPORT_BCN_PENDING, &iport->flags), + attached_device_type); + + switch (phy_state) { + case SMP_PHYWAIT_PHYDOWN: + /* Has the device gone away? */ + if (!attached_device_type) + phy_state = SMP_PHYWAIT_PHYUP; + + break; + + case SMP_PHYWAIT_PHYUP: + /* Has the device come back? */ + if (attached_device_type) + phy_state = SMP_PHYWAIT_DONE; + break; + + case SMP_PHYWAIT_DONE: + break; + } + + } + dev_dbg(&ihost->pdev->dev, "%s: done\n", __func__); +} + static int isci_reset_device(struct domain_device *dev, int hard_reset) { struct isci_remote_device *idev = dev->lldd_dev; struct sas_phy *phy = sas_find_local_phy(dev); struct isci_host *ihost = dev_to_ihost(dev); + struct isci_port *iport = idev->isci_port; enum sci_status status; unsigned long flags; int rc; @@ -1432,6 +1672,10 @@ static int isci_reset_device(struct domain_device *dev, int hard_reset) /* Make sure all pending requests are able to be fully terminated. */ isci_device_clear_reset_pending(ihost, idev); + /* If this is a device on an expander, disable BCN processing. */ + if (!scsi_is_sas_phy_local(phy)) + set_bit(IPORT_BCN_BLOCKED, &iport->flags); + rc = sas_phy_reset(phy, hard_reset); /* Terminate in-progress I/O now. */ @@ -1442,7 +1686,20 @@ static int isci_reset_device(struct domain_device *dev, int hard_reset) status = scic_remote_device_reset_complete(&idev->sci); spin_unlock_irqrestore(&ihost->scic_lock, flags); - msleep(2000); /* just like mvsas */ + /* If this is a device on an expander, bring the phy back up. */ + if (!scsi_is_sas_phy_local(phy)) { + /* A phy reset will cause the device to go away then reappear. + * Since libsas will take action on incoming BCNs (eg. remove + * a device going through an SMP phy-control driven reset), + * we need to wait until the phy comes back up before letting + * discovery proceed in libsas. + */ + isci_wait_for_smp_phy_reset(idev, phy->number); + + spin_lock_irqsave(&ihost->scic_lock, flags); + isci_port_bcn_enable(ihost, idev->isci_port); + spin_unlock_irqrestore(&ihost->scic_lock, flags); + } if (status != SCI_SUCCESS) { dev_warn(&ihost->pdev->dev, -- cgit v1.2.3-70-g09d2 From 312e0c2455c18716cf640d4336dcb1e9e5053818 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 28 Jun 2011 13:47:09 -0700 Subject: isci: unify can_queue tracking on the tci_pool, uplevel tag assignment The tci_pool tracks our outstanding command slots which are also the 'index' portion of our tags. Grabbing the tag early in ->lldd_execute_task let's us drop the isci_host_can_queue() and ->was_tag_assigned_by_user infrastructure. ->was_tag_assigned_by_user required the task context to be duplicated in request-local buffer. With the tci established early we can build the task_context directly into its final location and skip a memcpy. With the task context buffer at a known address at request construction we have the opportunity/obligation to also fix sgl handling. This rework feels like it belongs in another patch but the sgl handling and task_context are too intertwined. 1/ fix the 'ab' pair embedded in the task context to point to the 'cd' pair in the task context (previously we were prematurely linking to the staging buffer). 2/ fix the broken iteration of pio sgls that assumes all sgls are relative to the request, and does a dangerous looking reverse lookup of physical address to virtual address. Signed-off-by: Dan Williams --- drivers/scsi/isci/host.c | 265 ++++++------------------- drivers/scsi/isci/host.h | 55 +----- drivers/scsi/isci/port.c | 61 +++--- drivers/scsi/isci/port.h | 2 +- drivers/scsi/isci/request.c | 469 +++++++++++++++----------------------------- drivers/scsi/isci/request.h | 58 +----- drivers/scsi/isci/task.c | 80 ++++---- 7 files changed, 303 insertions(+), 687 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index b08455f0d35..c99fab53dd0 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -1018,33 +1018,11 @@ done: spin_unlock_irqrestore(&ihost->scic_lock, flags); } -static void isci_tci_free(struct isci_host *ihost, u16 tci) -{ - u16 tail = ihost->tci_tail & (SCI_MAX_IO_REQUESTS-1); - - ihost->tci_pool[tail] = tci; - ihost->tci_tail = tail + 1; -} - -static u16 isci_tci_alloc(struct isci_host *ihost) -{ - u16 head = ihost->tci_head & (SCI_MAX_IO_REQUESTS-1); - u16 tci = ihost->tci_pool[head]; - - ihost->tci_head = head + 1; - return tci; -} - static u16 isci_tci_active(struct isci_host *ihost) { return CIRC_CNT(ihost->tci_head, ihost->tci_tail, SCI_MAX_IO_REQUESTS); } -static u16 isci_tci_space(struct isci_host *ihost) -{ - return CIRC_SPACE(ihost->tci_head, ihost->tci_tail, SCI_MAX_IO_REQUESTS); -} - static enum sci_status scic_controller_start(struct scic_sds_controller *scic, u32 timeout) { @@ -1205,6 +1183,11 @@ static void isci_host_completion_routine(unsigned long data) task->task_done(task); } } + + spin_lock_irq(&isci_host->scic_lock); + isci_free_tag(isci_host, request->sci.io_tag); + spin_unlock_irq(&isci_host->scic_lock); + /* Free the request object. */ isci_request_free(isci_host, request); } @@ -1242,6 +1225,7 @@ static void isci_host_completion_routine(unsigned long data) * of pending requests. */ list_del_init(&request->dev_node); + isci_free_tag(isci_host, request->sci.io_tag); spin_unlock_irq(&isci_host->scic_lock); /* Free the request object. */ @@ -2375,6 +2359,7 @@ static int scic_controller_mem_init(struct scic_sds_controller *scic) if (!scic->task_context_table) return -ENOMEM; + scic->task_context_dma = dma; writel(lower_32_bits(dma), &scic->smu_registers->host_task_table_lower); writel(upper_32_bits(dma), &scic->smu_registers->host_task_table_upper); @@ -2409,11 +2394,9 @@ int isci_host_init(struct isci_host *isci_host) spin_lock_init(&isci_host->state_lock); spin_lock_init(&isci_host->scic_lock); - spin_lock_init(&isci_host->queue_lock); init_waitqueue_head(&isci_host->eventq); isci_host_change_state(isci_host, isci_starting); - isci_host->can_queue = ISCI_CAN_QUEUE_VAL; status = scic_controller_construct(&isci_host->sci, scu_base(isci_host), smu_base(isci_host)); @@ -2611,51 +2594,6 @@ void scic_sds_controller_post_request( writel(request, &scic->smu_registers->post_context_port); } -/** - * This method will copy the soft copy of the task context into the physical - * memory accessible by the controller. - * @scic: This parameter specifies the controller for which to copy - * the task context. - * @sci_req: This parameter specifies the request for which the task - * context is being copied. - * - * After this call is made the SCIC_SDS_IO_REQUEST object will always point to - * the physical memory version of the task context. Thus, all subsequent - * updates to the task context are performed in the TC table (i.e. DMAable - * memory). none - */ -void scic_sds_controller_copy_task_context( - struct scic_sds_controller *scic, - struct scic_sds_request *sci_req) -{ - struct scu_task_context *task_context_buffer; - - task_context_buffer = scic_sds_controller_get_task_context_buffer( - scic, sci_req->io_tag); - - memcpy(task_context_buffer, - sci_req->task_context_buffer, - offsetof(struct scu_task_context, sgl_snapshot_ac)); - - /* - * Now that the soft copy of the TC has been copied into the TC - * table accessible by the silicon. Thus, any further changes to - * the TC (e.g. TC termination) occur in the appropriate location. */ - sci_req->task_context_buffer = task_context_buffer; -} - -struct scu_task_context *scic_sds_controller_get_task_context_buffer(struct scic_sds_controller *scic, - u16 io_tag) -{ - u16 tci = ISCI_TAG_TCI(io_tag); - - if (tci < scic->task_context_entries) { - return &scic->task_context_table[tci]; - } - - return NULL; -} - struct scic_sds_request *scic_request_by_tag(struct scic_sds_controller *scic, u16 io_tag) { u16 task_index; @@ -2801,6 +2739,60 @@ void scic_sds_controller_release_frame( &scic->scu_registers->sdma.unsolicited_frame_get_pointer); } +void isci_tci_free(struct isci_host *ihost, u16 tci) +{ + u16 tail = ihost->tci_tail & (SCI_MAX_IO_REQUESTS-1); + + ihost->tci_pool[tail] = tci; + ihost->tci_tail = tail + 1; +} + +static u16 isci_tci_alloc(struct isci_host *ihost) +{ + u16 head = ihost->tci_head & (SCI_MAX_IO_REQUESTS-1); + u16 tci = ihost->tci_pool[head]; + + ihost->tci_head = head + 1; + return tci; +} + +static u16 isci_tci_space(struct isci_host *ihost) +{ + return CIRC_SPACE(ihost->tci_head, ihost->tci_tail, SCI_MAX_IO_REQUESTS); +} + +u16 isci_alloc_tag(struct isci_host *ihost) +{ + if (isci_tci_space(ihost)) { + u16 tci = isci_tci_alloc(ihost); + u8 seq = ihost->sci.io_request_sequence[tci]; + + return ISCI_TAG(seq, tci); + } + + return SCI_CONTROLLER_INVALID_IO_TAG; +} + +enum sci_status isci_free_tag(struct isci_host *ihost, u16 io_tag) +{ + struct scic_sds_controller *scic = &ihost->sci; + u16 tci = ISCI_TAG_TCI(io_tag); + u16 seq = ISCI_TAG_SEQ(io_tag); + + /* prevent tail from passing head */ + if (isci_tci_active(ihost) == 0) + return SCI_FAILURE_INVALID_IO_TAG; + + if (seq == scic->io_request_sequence[tci]) { + scic->io_request_sequence[tci] = (seq+1) & (SCI_MAX_SEQ-1); + + isci_tci_free(ihost, tci); + + return SCI_SUCCESS; + } + return SCI_FAILURE_INVALID_IO_TAG; +} + /** * scic_controller_start_io() - This method is called by the SCI user to * send/start an IO request. If the method invocation is successful, then @@ -2811,27 +2803,11 @@ void scic_sds_controller_release_frame( * IO request. * @io_request: the handle to the io request object to start. * @io_tag: This parameter specifies a previously allocated IO tag that the - * user desires to be utilized for this request. This parameter is optional. - * The user is allowed to supply SCI_CONTROLLER_INVALID_IO_TAG as the value - * for this parameter. - * - * - IO tags are a protected resource. It is incumbent upon the SCI Core user - * to ensure that each of the methods that may allocate or free available IO - * tags are handled in a mutually exclusive manner. This method is one of said - * methods requiring proper critical code section protection (e.g. semaphore, - * spin-lock, etc.). - For SATA, the user is required to manage NCQ tags. As a - * result, it is expected the user will have set the NCQ tag field in the host - * to device register FIS prior to calling this method. There is also a - * requirement for the user to call scic_stp_io_set_ncq_tag() prior to invoking - * the scic_controller_start_io() method. scic_controller_allocate_tag() for - * more information on allocating a tag. Indicate if the controller - * successfully started the IO request. SCI_SUCCESS if the IO request was - * successfully started. Determine the failure situations and return values. + * user desires to be utilized for this request. */ enum sci_status scic_controller_start_io(struct scic_sds_controller *scic, struct scic_sds_remote_device *rdev, - struct scic_sds_request *req, - u16 io_tag) + struct scic_sds_request *req) { enum sci_status status; @@ -2902,17 +2878,6 @@ enum sci_status scic_controller_terminate_request( * @remote_device: The handle to the remote device object for which to complete * the IO request. * @io_request: the handle to the io request object to complete. - * - * - IO tags are a protected resource. It is incumbent upon the SCI Core user - * to ensure that each of the methods that may allocate or free available IO - * tags are handled in a mutually exclusive manner. This method is one of said - * methods requiring proper critical code section protection (e.g. semaphore, - * spin-lock, etc.). - If the IO tag for a request was allocated, by the SCI - * Core user, using the scic_controller_allocate_io_tag() method, then it is - * the responsibility of the caller to invoke the scic_controller_free_io_tag() - * method to free the tag (i.e. this method will not free the IO tag). Indicate - * if the controller successfully completed the IO request. SCI_SUCCESS if the - * completion process was successful. */ enum sci_status scic_controller_complete_io( struct scic_sds_controller *scic, @@ -2963,31 +2928,11 @@ enum sci_status scic_controller_continue_io(struct scic_sds_request *sci_req) * @remote_device: the handle to the remote device object for which to start * the task management request. * @task_request: the handle to the task request object to start. - * @io_tag: This parameter specifies a previously allocated IO tag that the - * user desires to be utilized for this request. Note this not the io_tag - * of the request being managed. It is to be utilized for the task request - * itself. This parameter is optional. The user is allowed to supply - * SCI_CONTROLLER_INVALID_IO_TAG as the value for this parameter. - * - * - IO tags are a protected resource. It is incumbent upon the SCI Core user - * to ensure that each of the methods that may allocate or free available IO - * tags are handled in a mutually exclusive manner. This method is one of said - * methods requiring proper critical code section protection (e.g. semaphore, - * spin-lock, etc.). - The user must synchronize this task with completion - * queue processing. If they are not synchronized then it is possible for the - * io requests that are being managed by the task request can complete before - * starting the task request. scic_controller_allocate_tag() for more - * information on allocating a tag. Indicate if the controller successfully - * started the IO request. SCI_TASK_SUCCESS if the task request was - * successfully started. SCI_TASK_FAILURE_REQUIRES_SCSI_ABORT This value is - * returned if there is/are task(s) outstanding that require termination or - * completion before this request can succeed. */ enum sci_task_status scic_controller_start_task( struct scic_sds_controller *scic, struct scic_sds_remote_device *rdev, - struct scic_sds_request *req, - u16 task_tag) + struct scic_sds_request *req) { enum sci_status status; @@ -3022,85 +2967,3 @@ enum sci_task_status scic_controller_start_task( return status; } - -/** - * scic_controller_allocate_io_tag() - This method will allocate a tag from the - * pool of free IO tags. Direct allocation of IO tags by the SCI Core user - * is optional. The scic_controller_start_io() method will allocate an IO - * tag if this method is not utilized and the tag is not supplied to the IO - * construct routine. Direct allocation of IO tags may provide additional - * performance improvements in environments capable of supporting this usage - * model. Additionally, direct allocation of IO tags also provides - * additional flexibility to the SCI Core user. Specifically, the user may - * retain IO tags across the lives of multiple IO requests. - * @controller: the handle to the controller object for which to allocate the - * tag. - * - * IO tags are a protected resource. It is incumbent upon the SCI Core user to - * ensure that each of the methods that may allocate or free available IO tags - * are handled in a mutually exclusive manner. This method is one of said - * methods requiring proper critical code section protection (e.g. semaphore, - * spin-lock, etc.). An unsigned integer representing an available IO tag. - * SCI_CONTROLLER_INVALID_IO_TAG This value is returned if there are no - * currently available tags to be allocated. All return other values indicate a - * legitimate tag. - */ -u16 scic_controller_allocate_io_tag(struct scic_sds_controller *scic) -{ - struct isci_host *ihost = scic_to_ihost(scic); - - if (isci_tci_space(ihost)) { - u16 tci = isci_tci_alloc(ihost); - u8 seq = scic->io_request_sequence[tci]; - - return ISCI_TAG(seq, tci); - } - - return SCI_CONTROLLER_INVALID_IO_TAG; -} - -/** - * scic_controller_free_io_tag() - This method will free an IO tag to the pool - * of free IO tags. This method provides the SCI Core user more flexibility - * with regards to IO tags. The user may desire to keep an IO tag after an - * IO request has completed, because they plan on re-using the tag for a - * subsequent IO request. This method is only legal if the tag was - * allocated via scic_controller_allocate_io_tag(). - * @controller: This parameter specifies the handle to the controller object - * for which to free/return the tag. - * @io_tag: This parameter represents the tag to be freed to the pool of - * available tags. - * - * - IO tags are a protected resource. It is incumbent upon the SCI Core user - * to ensure that each of the methods that may allocate or free available IO - * tags are handled in a mutually exclusive manner. This method is one of said - * methods requiring proper critical code section protection (e.g. semaphore, - * spin-lock, etc.). - If the IO tag for a request was allocated, by the SCI - * Core user, using the scic_controller_allocate_io_tag() method, then it is - * the responsibility of the caller to invoke this method to free the tag. This - * method returns an indication of whether the tag was successfully put back - * (freed) to the pool of available tags. SCI_SUCCESS This return value - * indicates the tag was successfully placed into the pool of available IO - * tags. SCI_FAILURE_INVALID_IO_TAG This value is returned if the supplied tag - * is not a valid IO tag value. - */ -enum sci_status scic_controller_free_io_tag(struct scic_sds_controller *scic, - u16 io_tag) -{ - struct isci_host *ihost = scic_to_ihost(scic); - u16 tci = ISCI_TAG_TCI(io_tag); - u16 seq = ISCI_TAG_SEQ(io_tag); - - /* prevent tail from passing head */ - if (isci_tci_active(ihost) == 0) - return SCI_FAILURE_INVALID_IO_TAG; - - if (seq == scic->io_request_sequence[tci]) { - scic->io_request_sequence[tci] = (seq+1) & (SCI_MAX_SEQ-1); - - isci_tci_free(ihost, ISCI_TAG_TCI(io_tag)); - - return SCI_SUCCESS; - } - return SCI_FAILURE_INVALID_IO_TAG; -} diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index a54397e1bf1..d8164f5d798 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -192,6 +192,7 @@ struct scic_sds_controller { * context table. This data is shared between the hardware and software. */ struct scu_task_context *task_context_table; + dma_addr_t task_context_dma; /** * This field is a pointer to the memory allocated by the driver for the @@ -302,12 +303,8 @@ struct isci_host { struct isci_port ports[SCI_MAX_PORTS + 1]; /* includes dummy port */ struct sas_ha_struct sas_ha; - int can_queue; - spinlock_t queue_lock; spinlock_t state_lock; - struct pci_dev *pdev; - enum isci_status status; #define IHOST_START_PENDING 0 #define IHOST_STOP_PENDING 1 @@ -451,36 +448,6 @@ static inline void isci_host_change_state(struct isci_host *isci_host, } -static inline int isci_host_can_queue(struct isci_host *isci_host, int num) -{ - int ret = 0; - unsigned long flags; - - spin_lock_irqsave(&isci_host->queue_lock, flags); - if ((isci_host->can_queue - num) < 0) { - dev_dbg(&isci_host->pdev->dev, - "%s: isci_host->can_queue = %d\n", - __func__, - isci_host->can_queue); - ret = -SAS_QUEUE_FULL; - - } else - isci_host->can_queue -= num; - - spin_unlock_irqrestore(&isci_host->queue_lock, flags); - - return ret; -} - -static inline void isci_host_can_dequeue(struct isci_host *isci_host, int num) -{ - unsigned long flags; - - spin_lock_irqsave(&isci_host->queue_lock, flags); - isci_host->can_queue += num; - spin_unlock_irqrestore(&isci_host->queue_lock, flags); -} - static inline void wait_for_start(struct isci_host *ihost) { wait_event(ihost->eventq, !test_bit(IHOST_START_PENDING, &ihost->flags)); @@ -646,10 +613,6 @@ union scu_remote_node_context *scic_sds_controller_get_remote_node_context_buffe struct scic_sds_request *scic_request_by_tag(struct scic_sds_controller *scic, u16 io_tag); -struct scu_task_context *scic_sds_controller_get_task_context_buffer( - struct scic_sds_controller *scic, - u16 io_tag); - void scic_sds_controller_power_control_queue_insert( struct scic_sds_controller *scic, struct scic_sds_phy *sci_phy); @@ -681,6 +644,9 @@ void scic_sds_controller_register_setup(struct scic_sds_controller *scic); enum sci_status scic_controller_continue_io(struct scic_sds_request *sci_req); int isci_host_scan_finished(struct Scsi_Host *, unsigned long); void isci_host_scan_start(struct Scsi_Host *); +u16 isci_alloc_tag(struct isci_host *ihost); +enum sci_status isci_free_tag(struct isci_host *ihost, u16 io_tag); +void isci_tci_free(struct isci_host *ihost, u16 tci); int isci_host_init(struct isci_host *); @@ -708,14 +674,12 @@ void scic_controller_disable_interrupts( enum sci_status scic_controller_start_io( struct scic_sds_controller *scic, struct scic_sds_remote_device *remote_device, - struct scic_sds_request *io_request, - u16 io_tag); + struct scic_sds_request *io_request); enum sci_task_status scic_controller_start_task( struct scic_sds_controller *scic, struct scic_sds_remote_device *remote_device, - struct scic_sds_request *task_request, - u16 io_tag); + struct scic_sds_request *task_request); enum sci_status scic_controller_terminate_request( struct scic_sds_controller *scic, @@ -727,13 +691,6 @@ enum sci_status scic_controller_complete_io( struct scic_sds_remote_device *remote_device, struct scic_sds_request *io_request); -u16 scic_controller_allocate_io_tag( - struct scic_sds_controller *scic); - -enum sci_status scic_controller_free_io_tag( - struct scic_sds_controller *scic, - u16 io_tag); - void scic_sds_port_configuration_agent_construct( struct scic_sds_port_configuration_agent *port_agent); diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 5f4a4e3954d..0e84e29335d 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -695,35 +695,21 @@ static void scic_sds_port_construct_dummy_rnc(struct scic_sds_port *sci_port, u1 */ static void scic_sds_port_construct_dummy_task(struct scic_sds_port *sci_port, u16 tag) { + struct scic_sds_controller *scic = sci_port->owning_controller; struct scu_task_context *task_context; - task_context = scic_sds_controller_get_task_context_buffer(sci_port->owning_controller, tag); - + task_context = &scic->task_context_table[ISCI_TAG_TCI(tag)]; memset(task_context, 0, sizeof(struct scu_task_context)); - task_context->abort = 0; - task_context->priority = 0; task_context->initiator_request = 1; task_context->connection_rate = 1; - task_context->protocol_engine_index = 0; task_context->logical_port_index = sci_port->physical_port_index; task_context->protocol_type = SCU_TASK_CONTEXT_PROTOCOL_SSP; task_context->task_index = ISCI_TAG_TCI(tag); task_context->valid = SCU_TASK_CONTEXT_VALID; task_context->context_type = SCU_TASK_CONTEXT_TYPE; - task_context->remote_node_index = sci_port->reserved_rni; - task_context->command_code = 0; - - task_context->link_layer_control = 0; task_context->do_not_dma_ssp_good_response = 1; - task_context->strict_ordering = 0; - task_context->control_frame = 0; - task_context->timeout_enable = 0; - task_context->block_guard_enable = 0; - - task_context->address_modifier = 0; - task_context->task_phase = 0x01; } @@ -731,15 +717,15 @@ static void scic_sds_port_destroy_dummy_resources(struct scic_sds_port *sci_port { struct scic_sds_controller *scic = sci_port->owning_controller; - if (sci_port->reserved_tci != SCU_DUMMY_INDEX) - scic_controller_free_io_tag(scic, sci_port->reserved_tci); + if (sci_port->reserved_tag != SCI_CONTROLLER_INVALID_IO_TAG) + isci_free_tag(scic_to_ihost(scic), sci_port->reserved_tag); if (sci_port->reserved_rni != SCU_DUMMY_INDEX) scic_sds_remote_node_table_release_remote_node_index(&scic->available_remote_nodes, 1, sci_port->reserved_rni); sci_port->reserved_rni = SCU_DUMMY_INDEX; - sci_port->reserved_tci = SCU_DUMMY_INDEX; + sci_port->reserved_tag = SCI_CONTROLLER_INVALID_IO_TAG; } /** @@ -1119,18 +1105,17 @@ scic_sds_port_suspend_port_task_scheduler(struct scic_sds_port *port) */ static void scic_sds_port_post_dummy_request(struct scic_sds_port *sci_port) { - u32 command; - struct scu_task_context *task_context; struct scic_sds_controller *scic = sci_port->owning_controller; - u16 tci = sci_port->reserved_tci; - - task_context = scic_sds_controller_get_task_context_buffer(scic, tci); + u16 tag = sci_port->reserved_tag; + struct scu_task_context *tc; + u32 command; - task_context->abort = 0; + tc = &scic->task_context_table[ISCI_TAG_TCI(tag)]; + tc->abort = 0; command = SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | sci_port->physical_port_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | - tci; + ISCI_TAG_TCI(tag); scic_sds_controller_post_request(scic, command); } @@ -1145,17 +1130,16 @@ static void scic_sds_port_post_dummy_request(struct scic_sds_port *sci_port) static void scic_sds_port_abort_dummy_request(struct scic_sds_port *sci_port) { struct scic_sds_controller *scic = sci_port->owning_controller; - u16 tci = sci_port->reserved_tci; + u16 tag = sci_port->reserved_tag; struct scu_task_context *tc; u32 command; - tc = scic_sds_controller_get_task_context_buffer(scic, tci); - + tc = &scic->task_context_table[ISCI_TAG_TCI(tag)]; tc->abort = 1; command = SCU_CONTEXT_COMMAND_REQUEST_POST_TC_ABORT | sci_port->physical_port_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | - tci; + ISCI_TAG_TCI(tag); scic_sds_controller_post_request(scic, command); } @@ -1333,15 +1317,16 @@ enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port) sci_port->reserved_rni = rni; } - if (sci_port->reserved_tci == SCU_DUMMY_INDEX) { - /* Allocate a TCI and remove the sequence nibble */ - u16 tci = scic_controller_allocate_io_tag(scic); + if (sci_port->reserved_tag == SCI_CONTROLLER_INVALID_IO_TAG) { + struct isci_host *ihost = scic_to_ihost(scic); + u16 tag; - if (tci != SCU_DUMMY_INDEX) - scic_sds_port_construct_dummy_task(sci_port, tci); - else + tag = isci_alloc_tag(ihost); + if (tag == SCI_CONTROLLER_INVALID_IO_TAG) status = SCI_FAILURE_INSUFFICIENT_RESOURCES; - sci_port->reserved_tci = tci; + else + scic_sds_port_construct_dummy_task(sci_port, tag); + sci_port->reserved_tag = tag; } if (status == SCI_SUCCESS) { @@ -1859,7 +1844,7 @@ void scic_sds_port_construct(struct scic_sds_port *sci_port, u8 index, sci_port->assigned_device_count = 0; sci_port->reserved_rni = SCU_DUMMY_INDEX; - sci_port->reserved_tci = SCU_DUMMY_INDEX; + sci_port->reserved_tag = SCI_CONTROLLER_INVALID_IO_TAG; sci_init_timer(&sci_port->timer, port_timeout); diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index 45c01f80bf8..a44e541914f 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -108,7 +108,7 @@ struct scic_sds_port { u8 active_phy_mask; u16 reserved_rni; - u16 reserved_tci; + u16 reserved_tag; /** * This field contains the count of the io requests started on this port diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index 08a7340b33b..55859d5331b 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -61,42 +61,50 @@ #include "scu_event_codes.h" #include "sas.h" -/** - * This method returns the sgl element pair for the specificed sgl_pair index. - * @sci_req: This parameter specifies the IO request for which to retrieve - * the Scatter-Gather List element pair. - * @sgl_pair_index: This parameter specifies the index into the SGL element - * pair to be retrieved. - * - * This method returns a pointer to an struct scu_sgl_element_pair. - */ -static struct scu_sgl_element_pair *scic_sds_request_get_sgl_element_pair( - struct scic_sds_request *sci_req, - u32 sgl_pair_index - ) { - struct scu_task_context *task_context; +static struct scu_sgl_element_pair *to_sgl_element_pair(struct scic_sds_request *sci_req, + int idx) +{ + if (idx == 0) + return &sci_req->tc->sgl_pair_ab; + else if (idx == 1) + return &sci_req->tc->sgl_pair_cd; + else if (idx < 0) + return NULL; + else + return &sci_req->sg_table[idx - 2]; +} - task_context = (struct scu_task_context *)sci_req->task_context_buffer; +static dma_addr_t to_sgl_element_pair_dma(struct scic_sds_controller *scic, + struct scic_sds_request *sci_req, u32 idx) +{ + u32 offset; - if (sgl_pair_index == 0) { - return &task_context->sgl_pair_ab; - } else if (sgl_pair_index == 1) { - return &task_context->sgl_pair_cd; + if (idx == 0) { + offset = (void *) &sci_req->tc->sgl_pair_ab - + (void *) &scic->task_context_table[0]; + return scic->task_context_dma + offset; + } else if (idx == 1) { + offset = (void *) &sci_req->tc->sgl_pair_cd - + (void *) &scic->task_context_table[0]; + return scic->task_context_dma + offset; } - return &sci_req->sg_table[sgl_pair_index - 2]; + return scic_io_request_get_dma_addr(sci_req, &sci_req->sg_table[idx - 2]); +} + +static void init_sgl_element(struct scu_sgl_element *e, struct scatterlist *sg) +{ + e->length = sg_dma_len(sg); + e->address_upper = upper_32_bits(sg_dma_address(sg)); + e->address_lower = lower_32_bits(sg_dma_address(sg)); + e->address_modifier = 0; } -/** - * This function will build the SGL list for an IO request. - * @sci_req: This parameter specifies the IO request for which to build - * the Scatter-Gather List. - * - */ static void scic_sds_request_build_sgl(struct scic_sds_request *sds_request) { struct isci_request *isci_request = sci_req_to_ireq(sds_request); struct isci_host *isci_host = isci_request->isci_host; + struct scic_sds_controller *scic = &isci_host->sci; struct sas_task *task = isci_request_access_task(isci_request); struct scatterlist *sg = NULL; dma_addr_t dma_addr; @@ -108,25 +116,19 @@ static void scic_sds_request_build_sgl(struct scic_sds_request *sds_request) sg = task->scatter; while (sg) { - scu_sg = scic_sds_request_get_sgl_element_pair( - sds_request, - sg_idx); - - SCU_SGL_COPY(scu_sg->A, sg); - + scu_sg = to_sgl_element_pair(sds_request, sg_idx); + init_sgl_element(&scu_sg->A, sg); sg = sg_next(sg); - if (sg) { - SCU_SGL_COPY(scu_sg->B, sg); + init_sgl_element(&scu_sg->B, sg); sg = sg_next(sg); } else - SCU_SGL_ZERO(scu_sg->B); + memset(&scu_sg->B, 0, sizeof(scu_sg->B)); if (prev_sg) { - dma_addr = - scic_io_request_get_dma_addr( - sds_request, - scu_sg); + dma_addr = to_sgl_element_pair_dma(scic, + sds_request, + sg_idx); prev_sg->next_pair_upper = upper_32_bits(dma_addr); @@ -138,8 +140,7 @@ static void scic_sds_request_build_sgl(struct scic_sds_request *sds_request) sg_idx++; } } else { /* handle when no sg */ - scu_sg = scic_sds_request_get_sgl_element_pair(sds_request, - sg_idx); + scu_sg = to_sgl_element_pair(sds_request, sg_idx); dma_addr = dma_map_single(&isci_host->pdev->dev, task->scatter, @@ -246,35 +247,12 @@ static void scu_ssp_reqeust_construct_task_context( /* task_context->type.ssp.tag = sci_req->io_tag; */ task_context->task_phase = 0x01; - if (sds_request->was_tag_assigned_by_user) { - /* - * Build the task context now since we have already read - * the data - */ - sds_request->post_context = - (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | - (scic_sds_controller_get_protocol_engine_group( - controller) << - SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | - (scic_sds_port_get_index(target_port) << - SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | - ISCI_TAG_TCI(sds_request->io_tag)); - } else { - /* - * Build the task context now since we have already read - * the data - * - * I/O tag index is not assigned because we have to wait - * until we get a TCi - */ - sds_request->post_context = - (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | - (scic_sds_controller_get_protocol_engine_group( - owning_controller) << - SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | - (scic_sds_port_get_index(target_port) << - SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT)); - } + sds_request->post_context = (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | + (scic_sds_controller_get_protocol_engine_group(controller) << + SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | + (scic_sds_port_get_index(target_port) << + SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | + ISCI_TAG_TCI(sds_request->io_tag)); /* * Copy the physical address for the command buffer to the @@ -302,14 +280,11 @@ static void scu_ssp_reqeust_construct_task_context( * @sci_req: * */ -static void scu_ssp_io_request_construct_task_context( - struct scic_sds_request *sci_req, - enum dma_data_direction dir, - u32 len) +static void scu_ssp_io_request_construct_task_context(struct scic_sds_request *sci_req, + enum dma_data_direction dir, + u32 len) { - struct scu_task_context *task_context; - - task_context = scic_sds_request_get_task_context(sci_req); + struct scu_task_context *task_context = sci_req->tc; scu_ssp_reqeust_construct_task_context(sci_req, task_context); @@ -347,12 +322,9 @@ static void scu_ssp_io_request_construct_task_context( * constructed. * */ -static void scu_ssp_task_request_construct_task_context( - struct scic_sds_request *sci_req) +static void scu_ssp_task_request_construct_task_context(struct scic_sds_request *sci_req) { - struct scu_task_context *task_context; - - task_context = scic_sds_request_get_task_context(sci_req); + struct scu_task_context *task_context = sci_req->tc; scu_ssp_reqeust_construct_task_context(sci_req, task_context); @@ -421,35 +393,12 @@ static void scu_sata_reqeust_construct_task_context( /* Set the first word of the H2D REG FIS */ task_context->type.words[0] = *(u32 *)&sci_req->stp.cmd; - if (sci_req->was_tag_assigned_by_user) { - /* - * Build the task context now since we have already read - * the data - */ - sci_req->post_context = - (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | - (scic_sds_controller_get_protocol_engine_group( - controller) << - SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | - (scic_sds_port_get_index(target_port) << - SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | - ISCI_TAG_TCI(sci_req->io_tag)); - } else { - /* - * Build the task context now since we have already read - * the data. - * I/O tag index is not assigned because we have to wait - * until we get a TCi. - */ - sci_req->post_context = - (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | - (scic_sds_controller_get_protocol_engine_group( - controller) << - SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | - (scic_sds_port_get_index(target_port) << - SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT)); - } - + sci_req->post_context = (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | + (scic_sds_controller_get_protocol_engine_group(controller) << + SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | + (scic_sds_port_get_index(target_port) << + SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | + ISCI_TAG_TCI(sci_req->io_tag)); /* * Copy the physical address for the command buffer to the SCU Task * Context. We must offset the command buffer by 4 bytes because the @@ -467,22 +416,9 @@ static void scu_sata_reqeust_construct_task_context( task_context->response_iu_lower = 0; } - - -/** - * scu_stp_raw_request_construct_task_context - - * @sci_req: This parameter specifies the STP request object for which to - * construct a RAW command frame task context. - * @task_context: This parameter specifies the SCU specific task context buffer - * to construct. - * - * This method performs the operations common to all SATA/STP requests - * utilizing the raw frame method. none - */ -static void scu_stp_raw_request_construct_task_context(struct scic_sds_stp_request *stp_req, - struct scu_task_context *task_context) +static void scu_stp_raw_request_construct_task_context(struct scic_sds_request *sci_req) { - struct scic_sds_request *sci_req = to_sci_req(stp_req); + struct scu_task_context *task_context = sci_req->tc; scu_sata_reqeust_construct_task_context(sci_req, task_context); @@ -500,8 +436,7 @@ scic_sds_stp_pio_request_construct(struct scic_sds_request *sci_req, struct scic_sds_stp_request *stp_req = &sci_req->stp.req; struct scic_sds_stp_pio_request *pio = &stp_req->type.pio; - scu_stp_raw_request_construct_task_context(stp_req, - sci_req->task_context_buffer); + scu_stp_raw_request_construct_task_context(sci_req); pio->current_transfer_bytes = 0; pio->ending_error = 0; @@ -512,13 +447,10 @@ scic_sds_stp_pio_request_construct(struct scic_sds_request *sci_req, if (copy_rx_frame) { scic_sds_request_build_sgl(sci_req); - /* Since the IO request copy of the TC contains the same data as - * the actual TC this pointer is vaild for either. - */ - pio->request_current.sgl_pair = &sci_req->task_context_buffer->sgl_pair_ab; + pio->request_current.sgl_index = 0; } else { /* The user does not want the data copied to the SGL buffer location */ - pio->request_current.sgl_pair = NULL; + pio->request_current.sgl_index = -1; } return SCI_SUCCESS; @@ -541,7 +473,7 @@ static void scic_sds_stp_optimized_request_construct(struct scic_sds_request *sc u32 len, enum dma_data_direction dir) { - struct scu_task_context *task_context = sci_req->task_context_buffer; + struct scu_task_context *task_context = sci_req->tc; /* Build the STP task context structure */ scu_sata_reqeust_construct_task_context(sci_req, task_context); @@ -587,8 +519,7 @@ scic_io_request_construct_sata(struct scic_sds_request *sci_req, if (tmf->tmf_code == isci_tmf_sata_srst_high || tmf->tmf_code == isci_tmf_sata_srst_low) { - scu_stp_raw_request_construct_task_context(&sci_req->stp.req, - sci_req->task_context_buffer); + scu_stp_raw_request_construct_task_context(sci_req); return SCI_SUCCESS; } else { dev_err(scic_to_dev(sci_req->owning_controller), @@ -611,8 +542,7 @@ scic_io_request_construct_sata(struct scic_sds_request *sci_req, /* non data */ if (task->data_dir == DMA_NONE) { - scu_stp_raw_request_construct_task_context(&sci_req->stp.req, - sci_req->task_context_buffer); + scu_stp_raw_request_construct_task_context(sci_req); return SCI_SUCCESS; } @@ -701,8 +631,7 @@ enum sci_status scic_task_request_construct_sata(struct scic_sds_request *sci_re if (tmf->tmf_code == isci_tmf_sata_srst_high || tmf->tmf_code == isci_tmf_sata_srst_low) { - scu_stp_raw_request_construct_task_context(&sci_req->stp.req, - sci_req->task_context_buffer); + scu_stp_raw_request_construct_task_context(sci_req); } else { dev_err(scic_to_dev(sci_req->owning_controller), "%s: Request 0x%p received un-handled SAT " @@ -749,9 +678,9 @@ static u32 sci_req_tx_bytes(struct scic_sds_request *sci_req) enum sci_status scic_sds_request_start(struct scic_sds_request *sci_req) { - struct scic_sds_controller *scic = sci_req->owning_controller; - struct scu_task_context *task_context; enum sci_base_request_states state; + struct scu_task_context *tc = sci_req->tc; + struct scic_sds_controller *scic = sci_req->owning_controller; state = sci_req->sm.current_state_id; if (state != SCI_REQ_CONSTRUCTED) { @@ -761,61 +690,39 @@ enum sci_status scic_sds_request_start(struct scic_sds_request *sci_req) return SCI_FAILURE_INVALID_STATE; } - /* if necessary, allocate a TCi for the io request object and then will, - * if necessary, copy the constructed TC data into the actual TC buffer. - * If everything is successful the post context field is updated with - * the TCi so the controller can post the request to the hardware. - */ - if (sci_req->io_tag == SCI_CONTROLLER_INVALID_IO_TAG) - sci_req->io_tag = scic_controller_allocate_io_tag(scic); - - /* Record the IO Tag in the request */ - if (sci_req->io_tag != SCI_CONTROLLER_INVALID_IO_TAG) { - task_context = sci_req->task_context_buffer; - - task_context->task_index = ISCI_TAG_TCI(sci_req->io_tag); - - switch (task_context->protocol_type) { - case SCU_TASK_CONTEXT_PROTOCOL_SMP: - case SCU_TASK_CONTEXT_PROTOCOL_SSP: - /* SSP/SMP Frame */ - task_context->type.ssp.tag = sci_req->io_tag; - task_context->type.ssp.target_port_transfer_tag = - 0xFFFF; - break; + tc->task_index = ISCI_TAG_TCI(sci_req->io_tag); - case SCU_TASK_CONTEXT_PROTOCOL_STP: - /* STP/SATA Frame - * task_context->type.stp.ncq_tag = sci_req->ncq_tag; - */ - break; - - case SCU_TASK_CONTEXT_PROTOCOL_NONE: - /* / @todo When do we set no protocol type? */ - break; + switch (tc->protocol_type) { + case SCU_TASK_CONTEXT_PROTOCOL_SMP: + case SCU_TASK_CONTEXT_PROTOCOL_SSP: + /* SSP/SMP Frame */ + tc->type.ssp.tag = sci_req->io_tag; + tc->type.ssp.target_port_transfer_tag = 0xFFFF; + break; - default: - /* This should never happen since we build the IO - * requests */ - break; - } + case SCU_TASK_CONTEXT_PROTOCOL_STP: + /* STP/SATA Frame + * tc->type.stp.ncq_tag = sci_req->ncq_tag; + */ + break; - /* - * Check to see if we need to copy the task context buffer - * or have been building into the task context buffer */ - if (sci_req->was_tag_assigned_by_user == false) - scic_sds_controller_copy_task_context(scic, sci_req); + case SCU_TASK_CONTEXT_PROTOCOL_NONE: + /* / @todo When do we set no protocol type? */ + break; - /* Add to the post_context the io tag value */ - sci_req->post_context |= ISCI_TAG_TCI(sci_req->io_tag); + default: + /* This should never happen since we build the IO + * requests */ + break; + } - /* Everything is good go ahead and change state */ - sci_change_state(&sci_req->sm, SCI_REQ_STARTED); + /* Add to the post_context the io tag value */ + sci_req->post_context |= ISCI_TAG_TCI(sci_req->io_tag); - return SCI_SUCCESS; - } + /* Everything is good go ahead and change state */ + sci_change_state(&sci_req->sm, SCI_REQ_STARTED); - return SCI_FAILURE_INSUFFICIENT_RESOURCES; + return SCI_SUCCESS; } enum sci_status @@ -880,9 +787,6 @@ enum sci_status scic_sds_request_complete(struct scic_sds_request *sci_req) "isci: request completion from wrong state (%d)\n", state)) return SCI_FAILURE_INVALID_STATE; - if (!sci_req->was_tag_assigned_by_user) - scic_controller_free_io_tag(scic, sci_req->io_tag); - if (sci_req->saved_rx_frame_index != SCU_INVALID_FRAME_INDEX) scic_sds_controller_release_frame(scic, sci_req->saved_rx_frame_index); @@ -1244,51 +1148,40 @@ void scic_stp_io_request_set_ncq_tag(struct scic_sds_request *req, * @note This could be made to return an error to the user if the user * attempts to set the NCQ tag in the wrong state. */ - req->task_context_buffer->type.stp.ncq_tag = ncq_tag; + req->tc->type.stp.ncq_tag = ncq_tag; } -/** - * - * @sci_req: - * - * Get the next SGL element from the request. - Check on which SGL element pair - * we are working - if working on SLG pair element A - advance to element B - - * else - check to see if there are more SGL element pairs for this IO request - * - if there are more SGL element pairs - advance to the next pair and return - * element A struct scu_sgl_element* - */ -static struct scu_sgl_element *scic_sds_stp_request_pio_get_next_sgl(struct scic_sds_stp_request *stp_req) +static struct scu_sgl_element *pio_sgl_next(struct scic_sds_stp_request *stp_req) { - struct scu_sgl_element *current_sgl; + struct scu_sgl_element *sgl; + struct scu_sgl_element_pair *sgl_pair; struct scic_sds_request *sci_req = to_sci_req(stp_req); struct scic_sds_request_pio_sgl *pio_sgl = &stp_req->type.pio.request_current; - if (pio_sgl->sgl_set == SCU_SGL_ELEMENT_PAIR_A) { - if (pio_sgl->sgl_pair->B.address_lower == 0 && - pio_sgl->sgl_pair->B.address_upper == 0) { - current_sgl = NULL; + sgl_pair = to_sgl_element_pair(sci_req, pio_sgl->sgl_index); + if (!sgl_pair) + sgl = NULL; + else if (pio_sgl->sgl_set == SCU_SGL_ELEMENT_PAIR_A) { + if (sgl_pair->B.address_lower == 0 && + sgl_pair->B.address_upper == 0) { + sgl = NULL; } else { pio_sgl->sgl_set = SCU_SGL_ELEMENT_PAIR_B; - current_sgl = &pio_sgl->sgl_pair->B; + sgl = &sgl_pair->B; } } else { - if (pio_sgl->sgl_pair->next_pair_lower == 0 && - pio_sgl->sgl_pair->next_pair_upper == 0) { - current_sgl = NULL; + if (sgl_pair->next_pair_lower == 0 && + sgl_pair->next_pair_upper == 0) { + sgl = NULL; } else { - u64 phys_addr; - - phys_addr = pio_sgl->sgl_pair->next_pair_upper; - phys_addr <<= 32; - phys_addr |= pio_sgl->sgl_pair->next_pair_lower; - - pio_sgl->sgl_pair = scic_request_get_virt_addr(sci_req, phys_addr); + pio_sgl->sgl_index++; pio_sgl->sgl_set = SCU_SGL_ELEMENT_PAIR_A; - current_sgl = &pio_sgl->sgl_pair->A; + sgl_pair = to_sgl_element_pair(sci_req, pio_sgl->sgl_index); + sgl = &sgl_pair->A; } } - return current_sgl; + return sgl; } static enum sci_status @@ -1328,21 +1221,19 @@ static enum sci_status scic_sds_stp_request_pio_data_out_trasmit_data_frame( struct scic_sds_request *sci_req, u32 length) { - struct scic_sds_controller *scic = sci_req->owning_controller; struct scic_sds_stp_request *stp_req = &sci_req->stp.req; - struct scu_task_context *task_context; + struct scu_task_context *task_context = sci_req->tc; + struct scu_sgl_element_pair *sgl_pair; struct scu_sgl_element *current_sgl; /* Recycle the TC and reconstruct it for sending out DATA FIS containing * for the data from current_sgl+offset for the input length */ - task_context = scic_sds_controller_get_task_context_buffer(scic, - sci_req->io_tag); - + sgl_pair = to_sgl_element_pair(sci_req, stp_req->type.pio.request_current.sgl_index); if (stp_req->type.pio.request_current.sgl_set == SCU_SGL_ELEMENT_PAIR_A) - current_sgl = &stp_req->type.pio.request_current.sgl_pair->A; + current_sgl = &sgl_pair->A; else - current_sgl = &stp_req->type.pio.request_current.sgl_pair->B; + current_sgl = &sgl_pair->B; /* update the TC */ task_context->command_iu_upper = current_sgl->address_upper; @@ -1362,18 +1253,21 @@ static enum sci_status scic_sds_stp_request_pio_data_out_transmit_data(struct sc u32 remaining_bytes_in_current_sgl = 0; enum sci_status status = SCI_SUCCESS; struct scic_sds_stp_request *stp_req = &sci_req->stp.req; + struct scu_sgl_element_pair *sgl_pair; sgl_offset = stp_req->type.pio.request_current.sgl_offset; + sgl_pair = to_sgl_element_pair(sci_req, stp_req->type.pio.request_current.sgl_index); + if (WARN_ONCE(!sgl_pair, "%s: null sgl element", __func__)) + return SCI_FAILURE; if (stp_req->type.pio.request_current.sgl_set == SCU_SGL_ELEMENT_PAIR_A) { - current_sgl = &(stp_req->type.pio.request_current.sgl_pair->A); - remaining_bytes_in_current_sgl = stp_req->type.pio.request_current.sgl_pair->A.length - sgl_offset; + current_sgl = &sgl_pair->A; + remaining_bytes_in_current_sgl = sgl_pair->A.length - sgl_offset; } else { - current_sgl = &(stp_req->type.pio.request_current.sgl_pair->B); - remaining_bytes_in_current_sgl = stp_req->type.pio.request_current.sgl_pair->B.length - sgl_offset; + current_sgl = &sgl_pair->B; + remaining_bytes_in_current_sgl = sgl_pair->B.length - sgl_offset; } - if (stp_req->type.pio.pio_transfer_bytes > 0) { if (stp_req->type.pio.pio_transfer_bytes >= remaining_bytes_in_current_sgl) { /* recycle the TC and send the H2D Data FIS from (current sgl + sgl_offset) and length = remaining_bytes_in_current_sgl */ @@ -1382,7 +1276,7 @@ static enum sci_status scic_sds_stp_request_pio_data_out_transmit_data(struct sc stp_req->type.pio.pio_transfer_bytes -= remaining_bytes_in_current_sgl; /* update the current sgl, sgl_offset and save for future */ - current_sgl = scic_sds_stp_request_pio_get_next_sgl(stp_req); + current_sgl = pio_sgl_next(stp_req); sgl_offset = 0; } } else if (stp_req->type.pio.pio_transfer_bytes < remaining_bytes_in_current_sgl) { @@ -1945,7 +1839,7 @@ scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, return status; } - if (stp_req->type.pio.request_current.sgl_pair == NULL) { + if (stp_req->type.pio.request_current.sgl_index < 0) { sci_req->saved_rx_frame_index = frame_index; stp_req->type.pio.pio_transfer_bytes = 0; } else { @@ -2977,8 +2871,6 @@ static void isci_request_io_request_complete(struct isci_host *isci_host, * task to recognize the already completed case. */ request->terminated = true; - - isci_host_can_dequeue(isci_host, 1); } static void scic_sds_request_started_state_enter(struct sci_base_state_machine *sm) @@ -3039,7 +2931,7 @@ static void scic_sds_request_aborting_state_enter(struct sci_base_state_machine struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), sm); /* Setting the abort bit in the Task Context is required by the silicon. */ - sci_req->task_context_buffer->abort = 1; + sci_req->tc->abort = 1; } static void scic_sds_stp_request_started_non_data_await_h2d_completion_enter(struct sci_base_state_machine *sm) @@ -3069,7 +2961,7 @@ static void scic_sds_stp_request_started_soft_reset_await_h2d_asserted_completio static void scic_sds_stp_request_started_soft_reset_await_h2d_diagnostic_completion_enter(struct sci_base_state_machine *sm) { struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), sm); - struct scu_task_context *task_context; + struct scu_task_context *tc = sci_req->tc; struct host_to_dev_fis *h2d_fis; enum sci_status status; @@ -3078,9 +2970,7 @@ static void scic_sds_stp_request_started_soft_reset_await_h2d_diagnostic_complet h2d_fis->control = 0; /* Clear the TC control bit */ - task_context = scic_sds_controller_get_task_context_buffer( - sci_req->owning_controller, sci_req->io_tag); - task_context->control_frame = 0; + tc->control_frame = 0; status = scic_controller_continue_io(sci_req); WARN_ONCE(status != SCI_SUCCESS, "isci: continue io failure\n"); @@ -3141,18 +3031,10 @@ scic_sds_general_request_construct(struct scic_sds_controller *scic, sci_req->sci_status = SCI_SUCCESS; sci_req->scu_status = 0; sci_req->post_context = 0xFFFFFFFF; + sci_req->tc = &scic->task_context_table[ISCI_TAG_TCI(io_tag)]; sci_req->is_task_management_request = false; - - if (io_tag == SCI_CONTROLLER_INVALID_IO_TAG) { - sci_req->was_tag_assigned_by_user = false; - sci_req->task_context_buffer = &sci_req->tc; - } else { - sci_req->was_tag_assigned_by_user = true; - - sci_req->task_context_buffer = - scic_sds_controller_get_task_context_buffer(scic, io_tag); - } + WARN_ONCE(io_tag == SCI_CONTROLLER_INVALID_IO_TAG, "straggling invalid tag usage\n"); } static enum sci_status @@ -3178,8 +3060,7 @@ scic_io_request_construct(struct scic_sds_controller *scic, else return SCI_FAILURE_UNSUPPORTED_PROTOCOL; - memset(sci_req->task_context_buffer, 0, - offsetof(struct scu_task_context, sgl_pair_ab)); + memset(sci_req->tc, 0, offsetof(struct scu_task_context, sgl_pair_ab)); return status; } @@ -3197,7 +3078,7 @@ enum sci_status scic_task_request_construct(struct scic_sds_controller *scic, if (dev->dev_type == SAS_END_DEV || dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) { sci_req->is_task_management_request = true; - memset(sci_req->task_context_buffer, 0, sizeof(struct scu_task_context)); + memset(sci_req->tc, 0, sizeof(struct scu_task_context)); } else status = SCI_FAILURE_UNSUPPORTED_PROTOCOL; @@ -3299,7 +3180,7 @@ scic_io_request_construct_smp(struct device *dev, /* byte swap the smp request. */ - task_context = scic_sds_request_get_task_context(sci_req); + task_context = sci_req->tc; sci_dev = scic_sds_request_get_device(sci_req); sci_port = scic_sds_request_get_port(sci_req); @@ -3354,33 +3235,12 @@ scic_io_request_construct_smp(struct device *dev, */ task_context->task_phase = 0; - if (sci_req->was_tag_assigned_by_user) { - /* - * Build the task context now since we have already read - * the data - */ - sci_req->post_context = - (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | - (scic_sds_controller_get_protocol_engine_group(scic) << - SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | - (scic_sds_port_get_index(sci_port) << - SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | - ISCI_TAG_TCI(sci_req->io_tag)); - } else { - /* - * Build the task context now since we have already read - * the data. - * I/O tag index is not assigned because we have to wait - * until we get a TCi. - */ - sci_req->post_context = - (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | - (scic_sds_controller_get_protocol_engine_group(scic) << - SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | - (scic_sds_port_get_index(sci_port) << - SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT)); - } - + sci_req->post_context = (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | + (scic_sds_controller_get_protocol_engine_group(scic) << + SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | + (scic_sds_port_get_index(sci_port) << + SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | + ISCI_TAG_TCI(sci_req->io_tag)); /* * Copy the physical address for the command buffer to the SCU Task * Context command buffer should not contain command header. @@ -3431,10 +3291,10 @@ static enum sci_status isci_smp_request_build(struct isci_request *ireq) * * SCI_SUCCESS on successfull completion, or specific failure code. */ -static enum sci_status isci_io_request_build( - struct isci_host *isci_host, - struct isci_request *request, - struct isci_remote_device *isci_device) +static enum sci_status isci_io_request_build(struct isci_host *isci_host, + struct isci_request *request, + struct isci_remote_device *isci_device, + u16 tag) { enum sci_status status = SCI_SUCCESS; struct sas_task *task = isci_request_access_task(request); @@ -3471,8 +3331,7 @@ static enum sci_status isci_io_request_build( * we will let the core allocate the IO tag. */ status = scic_io_request_construct(&isci_host->sci, sci_device, - SCI_CONTROLLER_INVALID_IO_TAG, - &request->sci); + tag, &request->sci); if (status != SCI_SUCCESS) { dev_warn(&isci_host->pdev->dev, @@ -3564,7 +3423,7 @@ struct isci_request *isci_request_alloc_tmf(struct isci_host *ihost, } int isci_request_execute(struct isci_host *ihost, struct isci_remote_device *idev, - struct sas_task *task, gfp_t gfp_flags) + struct sas_task *task, u16 tag, gfp_t gfp_flags) { enum sci_status status = SCI_FAILURE_UNSUPPORTED_PROTOCOL; struct isci_request *ireq; @@ -3576,7 +3435,7 @@ int isci_request_execute(struct isci_host *ihost, struct isci_remote_device *ide if (!ireq) goto out; - status = isci_io_request_build(ihost, ireq, idev); + status = isci_io_request_build(ihost, ireq, idev, tag); if (status != SCI_SUCCESS) { dev_warn(&ihost->pdev->dev, "%s: request_construct failed - status = 0x%x\n", @@ -3599,18 +3458,16 @@ int isci_request_execute(struct isci_host *ihost, struct isci_remote_device *ide */ status = scic_controller_start_task(&ihost->sci, &idev->sci, - &ireq->sci, - SCI_CONTROLLER_INVALID_IO_TAG); + &ireq->sci); } else { status = SCI_FAILURE; } } else { - /* send the request, let the core assign the IO TAG. */ status = scic_controller_start_io(&ihost->sci, &idev->sci, - &ireq->sci, - SCI_CONTROLLER_INVALID_IO_TAG); + &ireq->sci); } + if (status != SCI_SUCCESS && status != SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED) { dev_warn(&ihost->pdev->dev, @@ -3647,23 +3504,23 @@ int isci_request_execute(struct isci_host *ihost, struct isci_remote_device *ide if (status == SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED) { /* Signal libsas that we need the SCSI error - * handler thread to work on this I/O and that - * we want a device reset. - */ + * handler thread to work on this I/O and that + * we want a device reset. + */ spin_lock_irqsave(&task->task_state_lock, flags); task->task_state_flags |= SAS_TASK_NEED_DEV_RESET; spin_unlock_irqrestore(&task->task_state_lock, flags); /* Cause this task to be scheduled in the SCSI error - * handler thread. - */ + * handler thread. + */ isci_execpath_callback(ihost, task, sas_task_abort); /* Change the status, since we are holding - * the I/O until it is managed by the SCSI - * error handler. - */ + * the I/O until it is managed by the SCSI + * error handler. + */ status = SCI_SUCCESS; } diff --git a/drivers/scsi/isci/request.h b/drivers/scsi/isci/request.h index 9130f22a63b..8c77c4cbe04 100644 --- a/drivers/scsi/isci/request.h +++ b/drivers/scsi/isci/request.h @@ -136,7 +136,7 @@ struct scic_sds_stp_request { u8 ending_error; struct scic_sds_request_pio_sgl { - struct scu_sgl_element_pair *sgl_pair; + int sgl_index; u8 sgl_set; u32 sgl_offset; } request_current; @@ -171,12 +171,6 @@ struct scic_sds_request { */ struct scic_sds_remote_device *target_device; - /* - * This field is utilized to determine if the SCI user is managing - * the IO tag for this request or if the core is managing it. - */ - bool was_tag_assigned_by_user; - /* * This field indicates the IO tag for this request. The IO tag is * comprised of the task_index and a sequence count. The sequence count @@ -209,8 +203,7 @@ struct scic_sds_request { */ u32 post_context; - struct scu_task_context *task_context_buffer; - struct scu_task_context tc ____cacheline_aligned; + struct scu_task_context *tc; /* could be larger with sg chaining */ #define SCU_SGL_SIZE ((SCI_MAX_SCATTER_GATHER_ELEMENTS + 1) / 2) @@ -465,35 +458,6 @@ enum sci_base_request_states { (request)->sci_status = (sci_status_code); \ } -/** - * SCU_SGL_ZERO() - - * - * This macro zeros the hardware SGL element data - */ -#define SCU_SGL_ZERO(scu_sge) \ - { \ - (scu_sge).length = 0; \ - (scu_sge).address_lower = 0; \ - (scu_sge).address_upper = 0; \ - (scu_sge).address_modifier = 0; \ - } - -/** - * SCU_SGL_COPY() - - * - * This macro copys the SGL Element data from the host os to the hardware SGL - * elment data - */ -#define SCU_SGL_COPY(scu_sge, os_sge) \ - { \ - (scu_sge).length = sg_dma_len(sg); \ - (scu_sge).address_upper = \ - upper_32_bits(sg_dma_address(sg)); \ - (scu_sge).address_lower = \ - lower_32_bits(sg_dma_address(sg)); \ - (scu_sge).address_modifier = 0; \ - } - enum sci_status scic_sds_request_start(struct scic_sds_request *sci_req); enum sci_status scic_sds_io_request_terminate(struct scic_sds_request *sci_req); enum sci_status @@ -509,22 +473,6 @@ scic_sds_request_complete(struct scic_sds_request *sci_req); extern enum sci_status scic_sds_io_request_tc_completion(struct scic_sds_request *sci_req, u32 code); -/* XXX open code in caller */ -static inline void *scic_request_get_virt_addr(struct scic_sds_request *sci_req, - dma_addr_t phys_addr) -{ - struct isci_request *ireq = sci_req_to_ireq(sci_req); - dma_addr_t offset; - - BUG_ON(phys_addr < ireq->request_daddr); - - offset = phys_addr - ireq->request_daddr; - - BUG_ON(offset >= sizeof(*ireq)); - - return (char *)ireq + offset; -} - /* XXX open code in caller */ static inline dma_addr_t scic_io_request_get_dma_addr(struct scic_sds_request *sci_req, void *virt_addr) @@ -672,7 +620,7 @@ struct isci_request *isci_request_alloc_tmf(struct isci_host *ihost, struct isci_tmf *isci_tmf, gfp_t gfp_flags); int isci_request_execute(struct isci_host *ihost, struct isci_remote_device *idev, - struct sas_task *task, gfp_t gfp_flags); + struct sas_task *task, u16 tag, gfp_t gfp_flags); void isci_terminate_pending_requests(struct isci_host *ihost, struct isci_remote_device *idev); enum sci_status diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index 157e9978183..22f6fe17111 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -63,6 +63,7 @@ #include "request.h" #include "sata.h" #include "task.h" +#include "host.h" /** * isci_task_refuse() - complete the request to the upper layer driver in @@ -156,25 +157,19 @@ int isci_task_execute_task(struct sas_task *task, int num, gfp_t gfp_flags) { struct isci_host *ihost = dev_to_ihost(task->dev); struct isci_remote_device *idev; - enum sci_status status; unsigned long flags; bool io_ready; - int ret; + u16 tag; dev_dbg(&ihost->pdev->dev, "%s: num=%d\n", __func__, num); - /* Check if we have room for more tasks */ - ret = isci_host_can_queue(ihost, num); - - if (ret) { - dev_warn(&ihost->pdev->dev, "%s: queue full\n", __func__); - return ret; - } - for_each_sas_task(num, task) { + enum sci_status status = SCI_FAILURE; + spin_lock_irqsave(&ihost->scic_lock, flags); idev = isci_lookup_device(task->dev); io_ready = isci_device_io_ready(idev, task); + tag = isci_alloc_tag(ihost); spin_unlock_irqrestore(&ihost->scic_lock, flags); dev_dbg(&ihost->pdev->dev, @@ -185,15 +180,12 @@ int isci_task_execute_task(struct sas_task *task, int num, gfp_t gfp_flags) if (!idev) { isci_task_refuse(ihost, task, SAS_TASK_UNDELIVERED, SAS_DEVICE_UNKNOWN); - isci_host_can_dequeue(ihost, 1); - } else if (!io_ready) { - + } else if (!io_ready || tag == SCI_CONTROLLER_INVALID_IO_TAG) { /* Indicate QUEUE_FULL so that the scsi midlayer * retries. */ isci_task_refuse(ihost, task, SAS_TASK_COMPLETE, SAS_QUEUE_FULL); - isci_host_can_dequeue(ihost, 1); } else { /* There is a device and it's ready for I/O. */ spin_lock_irqsave(&task->task_state_lock, flags); @@ -206,13 +198,12 @@ int isci_task_execute_task(struct sas_task *task, int num, gfp_t gfp_flags) isci_task_refuse(ihost, task, SAS_TASK_UNDELIVERED, SAM_STAT_TASK_ABORTED); - isci_host_can_dequeue(ihost, 1); } else { task->task_state_flags |= SAS_TASK_AT_INITIATOR; spin_unlock_irqrestore(&task->task_state_lock, flags); /* build and send the request. */ - status = isci_request_execute(ihost, idev, task, gfp_flags); + status = isci_request_execute(ihost, idev, task, tag, gfp_flags); if (status != SCI_SUCCESS) { @@ -231,10 +222,17 @@ int isci_task_execute_task(struct sas_task *task, int num, gfp_t gfp_flags) isci_task_refuse(ihost, task, SAS_TASK_COMPLETE, SAS_QUEUE_FULL); - isci_host_can_dequeue(ihost, 1); } } } + if (status != SCI_SUCCESS && tag != SCI_CONTROLLER_INVALID_IO_TAG) { + spin_lock_irqsave(&ihost->scic_lock, flags); + /* command never hit the device, so just free + * the tci and skip the sequence increment + */ + isci_tci_free(ihost, ISCI_TAG_TCI(tag)); + spin_unlock_irqrestore(&ihost->scic_lock, flags); + } isci_put_device(idev); } return 0; @@ -242,7 +240,7 @@ int isci_task_execute_task(struct sas_task *task, int num, gfp_t gfp_flags) static struct isci_request *isci_task_request_build(struct isci_host *ihost, struct isci_remote_device *idev, - struct isci_tmf *isci_tmf) + u16 tag, struct isci_tmf *isci_tmf) { enum sci_status status = SCI_FAILURE; struct isci_request *ireq = NULL; @@ -259,8 +257,7 @@ static struct isci_request *isci_task_request_build(struct isci_host *ihost, return NULL; /* let the core do it's construct. */ - status = scic_task_request_construct(&ihost->sci, &idev->sci, - SCI_CONTROLLER_INVALID_IO_TAG, + status = scic_task_request_construct(&ihost->sci, &idev->sci, tag, &ireq->sci); if (status != SCI_SUCCESS) { @@ -290,8 +287,7 @@ static struct isci_request *isci_task_request_build(struct isci_host *ihost, return ireq; errout: isci_request_free(ihost, ireq); - ireq = NULL; - return ireq; + return NULL; } int isci_task_execute_tmf(struct isci_host *ihost, @@ -305,6 +301,14 @@ int isci_task_execute_tmf(struct isci_host *ihost, int ret = TMF_RESP_FUNC_FAILED; unsigned long flags; unsigned long timeleft; + u16 tag; + + spin_lock_irqsave(&ihost->scic_lock, flags); + tag = isci_alloc_tag(ihost); + spin_unlock_irqrestore(&ihost->scic_lock, flags); + + if (tag == SCI_CONTROLLER_INVALID_IO_TAG) + return ret; /* sanity check, return TMF_RESP_FUNC_FAILED * if the device is not there and ready. @@ -316,7 +320,7 @@ int isci_task_execute_tmf(struct isci_host *ihost, "%s: isci_device = %p not ready (%#lx)\n", __func__, isci_device, isci_device ? isci_device->flags : 0); - return TMF_RESP_FUNC_FAILED; + goto err_tci; } else dev_dbg(&ihost->pdev->dev, "%s: isci_device = %p\n", @@ -327,22 +331,16 @@ int isci_task_execute_tmf(struct isci_host *ihost, /* Assign the pointer to the TMF's completion kernel wait structure. */ tmf->complete = &completion; - ireq = isci_task_request_build(ihost, isci_device, tmf); - if (!ireq) { - dev_warn(&ihost->pdev->dev, - "%s: isci_task_request_build failed\n", - __func__); - return TMF_RESP_FUNC_FAILED; - } + ireq = isci_task_request_build(ihost, isci_device, tag, tmf); + if (!ireq) + goto err_tci; spin_lock_irqsave(&ihost->scic_lock, flags); /* start the TMF io. */ - status = scic_controller_start_task( - &ihost->sci, - sci_device, - &ireq->sci, - SCI_CONTROLLER_INVALID_IO_TAG); + status = scic_controller_start_task(&ihost->sci, + sci_device, + &ireq->sci); if (status != SCI_TASK_SUCCESS) { dev_warn(&ihost->pdev->dev, @@ -351,8 +349,7 @@ int isci_task_execute_tmf(struct isci_host *ihost, status, ireq); spin_unlock_irqrestore(&ihost->scic_lock, flags); - isci_request_free(ihost, ireq); - return ret; + goto err_ireq; } if (tmf->cb_state_func != NULL) @@ -403,6 +400,15 @@ int isci_task_execute_tmf(struct isci_host *ihost, ireq); return ret; + + err_ireq: + isci_request_free(ihost, ireq); + err_tci: + spin_lock_irqsave(&ihost->scic_lock, flags); + isci_tci_free(ihost, ISCI_TAG_TCI(tag)); + spin_unlock_irqrestore(&ihost->scic_lock, flags); + + return ret; } void isci_task_build_tmf( -- cgit v1.2.3-70-g09d2 From 5076a1a97e2fa61c847a5fdd4b1991faf7716da6 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Mon, 27 Jun 2011 14:57:03 -0700 Subject: isci: unify isci_request and scic_sds_request They are one in the same object so remove the distinction. The near duplicate fields (owning_controller, and isci_host) will be cleaned up after the scic_sds_contoller isci_host unification. Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/host.c | 98 ++--- drivers/scsi/isci/host.h | 16 +- drivers/scsi/isci/phy.c | 2 +- drivers/scsi/isci/port.c | 4 +- drivers/scsi/isci/port.h | 6 +- drivers/scsi/isci/remote_device.c | 92 +++-- drivers/scsi/isci/remote_device.h | 8 +- drivers/scsi/isci/remote_node_context.c | 4 +- drivers/scsi/isci/remote_node_context.h | 6 +- drivers/scsi/isci/request.c | 683 ++++++++++++++++---------------- drivers/scsi/isci/request.h | 184 +++------ drivers/scsi/isci/sata.c | 9 +- drivers/scsi/isci/task.c | 17 +- 13 files changed, 514 insertions(+), 615 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index 0884ae3253e..d91cd6d8274 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -258,21 +258,20 @@ static void scic_sds_controller_task_completion(struct scic_sds_controller *scic u32 index = SCU_GET_COMPLETION_INDEX(completion_entry); struct isci_host *ihost = scic_to_ihost(scic); struct isci_request *ireq = ihost->reqs[index]; - struct scic_sds_request *sci_req = &ireq->sci; /* Make sure that we really want to process this IO request */ if (test_bit(IREQ_ACTIVE, &ireq->flags) && - sci_req->io_tag != SCI_CONTROLLER_INVALID_IO_TAG && - ISCI_TAG_SEQ(sci_req->io_tag) == scic->io_request_sequence[index]) + ireq->io_tag != SCI_CONTROLLER_INVALID_IO_TAG && + ISCI_TAG_SEQ(ireq->io_tag) == scic->io_request_sequence[index]) /* Yep this is a valid io request pass it along to the io request handler */ - scic_sds_io_request_tc_completion(sci_req, completion_entry); + scic_sds_io_request_tc_completion(ireq, completion_entry); } static void scic_sds_controller_sdma_completion(struct scic_sds_controller *scic, u32 completion_entry) { u32 index; - struct scic_sds_request *io_request; + struct isci_request *ireq; struct scic_sds_remote_device *device; index = SCU_GET_COMPLETION_INDEX(completion_entry); @@ -280,41 +279,27 @@ static void scic_sds_controller_sdma_completion(struct scic_sds_controller *scic switch (scu_get_command_request_type(completion_entry)) { case SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC: case SCU_CONTEXT_COMMAND_REQUEST_TYPE_DUMP_TC: - io_request = &scic_to_ihost(scic)->reqs[index]->sci; - dev_warn(scic_to_dev(scic), - "%s: SCIC SDS Completion type SDMA %x for io request " - "%p\n", - __func__, - completion_entry, - io_request); + ireq = scic_to_ihost(scic)->reqs[index]; + dev_warn(scic_to_dev(scic), "%s: %x for io request %p\n", + __func__, completion_entry, ireq); /* @todo For a post TC operation we need to fail the IO * request */ break; - case SCU_CONTEXT_COMMAND_REQUEST_TYPE_DUMP_RNC: case SCU_CONTEXT_COMMAND_REQUEST_TYPE_OTHER_RNC: case SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_RNC: device = scic->device_table[index]; - dev_warn(scic_to_dev(scic), - "%s: SCIC SDS Completion type SDMA %x for remote " - "device %p\n", - __func__, - completion_entry, - device); + dev_warn(scic_to_dev(scic), "%s: %x for device %p\n", + __func__, completion_entry, device); /* @todo For a port RNC operation we need to fail the * device */ break; - default: - dev_warn(scic_to_dev(scic), - "%s: SCIC SDS Completion unknown SDMA completion " - "type %x\n", - __func__, - completion_entry); + dev_warn(scic_to_dev(scic), "%s: unknown completion type %x\n", + __func__, completion_entry); break; - } } @@ -385,8 +370,8 @@ static void scic_sds_controller_event_completion(struct scic_sds_controller *sci u32 completion_entry) { struct isci_host *ihost = scic_to_ihost(scic); - struct scic_sds_request *io_request; struct scic_sds_remote_device *device; + struct isci_request *ireq; struct scic_sds_phy *phy; u32 index; @@ -418,17 +403,17 @@ static void scic_sds_controller_event_completion(struct scic_sds_controller *sci break; case SCU_EVENT_TYPE_TRANSPORT_ERROR: - io_request = &ihost->reqs[index]->sci; - scic_sds_io_request_event_handler(io_request, completion_entry); + ireq = ihost->reqs[index]; + scic_sds_io_request_event_handler(ireq, completion_entry); break; case SCU_EVENT_TYPE_PTX_SCHEDULE_EVENT: switch (scu_get_event_specifier(completion_entry)) { case SCU_EVENT_SPECIFIC_SMP_RESPONSE_NO_PE: case SCU_EVENT_SPECIFIC_TASK_TIMEOUT: - io_request = &ihost->reqs[index]->sci; - if (io_request != NULL) - scic_sds_io_request_event_handler(io_request, completion_entry); + ireq = ihost->reqs[index]; + if (ireq != NULL) + scic_sds_io_request_event_handler(ireq, completion_entry); else dev_warn(scic_to_dev(scic), "%s: SCIC Controller 0x%p received " @@ -1185,7 +1170,7 @@ static void isci_host_completion_routine(unsigned long data) } spin_lock_irq(&isci_host->scic_lock); - isci_free_tag(isci_host, request->sci.io_tag); + isci_free_tag(isci_host, request->io_tag); spin_unlock_irq(&isci_host->scic_lock); } list_for_each_entry_safe(request, next_request, &errored_request_list, @@ -1222,7 +1207,7 @@ static void isci_host_completion_routine(unsigned long data) * of pending requests. */ list_del_init(&request->dev_node); - isci_free_tag(isci_host, request->sci.io_tag); + isci_free_tag(isci_host, request->io_tag); spin_unlock_irq(&isci_host->scic_lock); } } @@ -2486,8 +2471,8 @@ int isci_host_init(struct isci_host *isci_host) if (!ireq) return -ENOMEM; - ireq->sci.tc = &isci_host->sci.task_context_table[i]; - ireq->sci.owning_controller = &isci_host->sci; + ireq->tc = &isci_host->sci.task_context_table[i]; + ireq->owning_controller = &isci_host->sci; spin_lock_init(&ireq->state_lock); ireq->request_daddr = dma; ireq->isci_host = isci_host; @@ -2600,7 +2585,7 @@ void scic_sds_controller_post_request( writel(request, &scic->smu_registers->post_context_port); } -struct scic_sds_request *scic_request_by_tag(struct scic_sds_controller *scic, u16 io_tag) +struct isci_request *scic_request_by_tag(struct scic_sds_controller *scic, u16 io_tag) { u16 task_index; u16 task_sequence; @@ -2614,7 +2599,7 @@ struct scic_sds_request *scic_request_by_tag(struct scic_sds_controller *scic, u task_sequence = ISCI_TAG_SEQ(io_tag); if (task_sequence == scic->io_request_sequence[task_index]) - return &ireq->sci; + return ireq; } } @@ -2814,7 +2799,7 @@ enum sci_status isci_free_tag(struct isci_host *ihost, u16 io_tag) */ enum sci_status scic_controller_start_io(struct scic_sds_controller *scic, struct scic_sds_remote_device *rdev, - struct scic_sds_request *req) + struct isci_request *ireq) { enum sci_status status; @@ -2823,12 +2808,12 @@ enum sci_status scic_controller_start_io(struct scic_sds_controller *scic, return SCI_FAILURE_INVALID_STATE; } - status = scic_sds_remote_device_start_io(scic, rdev, req); + status = scic_sds_remote_device_start_io(scic, rdev, ireq); if (status != SCI_SUCCESS) return status; - set_bit(IREQ_ACTIVE, &sci_req_to_ireq(req)->flags); - scic_sds_controller_post_request(scic, scic_sds_request_get_post_context(req)); + set_bit(IREQ_ACTIVE, &ireq->flags); + scic_sds_controller_post_request(scic, scic_sds_request_get_post_context(ireq)); return SCI_SUCCESS; } @@ -2851,7 +2836,7 @@ enum sci_status scic_controller_start_io(struct scic_sds_controller *scic, enum sci_status scic_controller_terminate_request( struct scic_sds_controller *scic, struct scic_sds_remote_device *rdev, - struct scic_sds_request *req) + struct isci_request *ireq) { enum sci_status status; @@ -2861,7 +2846,7 @@ enum sci_status scic_controller_terminate_request( return SCI_FAILURE_INVALID_STATE; } - status = scic_sds_io_request_terminate(req); + status = scic_sds_io_request_terminate(ireq); if (status != SCI_SUCCESS) return status; @@ -2870,7 +2855,7 @@ enum sci_status scic_controller_terminate_request( * request sub-type. */ scic_sds_controller_post_request(scic, - scic_sds_request_get_post_context(req) | + scic_sds_request_get_post_context(ireq) | SCU_CONTEXT_COMMAND_REQUEST_POST_TC_ABORT); return SCI_SUCCESS; } @@ -2889,7 +2874,7 @@ enum sci_status scic_controller_terminate_request( enum sci_status scic_controller_complete_io( struct scic_sds_controller *scic, struct scic_sds_remote_device *rdev, - struct scic_sds_request *request) + struct isci_request *ireq) { enum sci_status status; u16 index; @@ -2899,12 +2884,12 @@ enum sci_status scic_controller_complete_io( /* XXX: Implement this function */ return SCI_FAILURE; case SCIC_READY: - status = scic_sds_remote_device_complete_io(scic, rdev, request); + status = scic_sds_remote_device_complete_io(scic, rdev, ireq); if (status != SCI_SUCCESS) return status; - index = ISCI_TAG_TCI(request->io_tag); - clear_bit(IREQ_ACTIVE, &sci_req_to_ireq(request)->flags); + index = ISCI_TAG_TCI(ireq->io_tag); + clear_bit(IREQ_ACTIVE, &ireq->flags); return SCI_SUCCESS; default: dev_warn(scic_to_dev(scic), "invalid state to complete I/O"); @@ -2913,17 +2898,17 @@ enum sci_status scic_controller_complete_io( } -enum sci_status scic_controller_continue_io(struct scic_sds_request *sci_req) +enum sci_status scic_controller_continue_io(struct isci_request *ireq) { - struct scic_sds_controller *scic = sci_req->owning_controller; + struct scic_sds_controller *scic = ireq->owning_controller; if (scic->sm.current_state_id != SCIC_READY) { dev_warn(scic_to_dev(scic), "invalid state to continue I/O"); return SCI_FAILURE_INVALID_STATE; } - set_bit(IREQ_ACTIVE, &sci_req_to_ireq(sci_req)->flags); - scic_sds_controller_post_request(scic, scic_sds_request_get_post_context(sci_req)); + set_bit(IREQ_ACTIVE, &ireq->flags); + scic_sds_controller_post_request(scic, scic_sds_request_get_post_context(ireq)); return SCI_SUCCESS; } @@ -2939,9 +2924,8 @@ enum sci_status scic_controller_continue_io(struct scic_sds_request *sci_req) enum sci_task_status scic_controller_start_task( struct scic_sds_controller *scic, struct scic_sds_remote_device *rdev, - struct scic_sds_request *req) + struct isci_request *ireq) { - struct isci_request *ireq = sci_req_to_ireq(req); enum sci_status status; if (scic->sm.current_state_id != SCIC_READY) { @@ -2952,7 +2936,7 @@ enum sci_task_status scic_controller_start_task( return SCI_TASK_FAILURE_INVALID_STATE; } - status = scic_sds_remote_device_start_task(scic, rdev, req); + status = scic_sds_remote_device_start_task(scic, rdev, ireq); switch (status) { case SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS: set_bit(IREQ_ACTIVE, &ireq->flags); @@ -2967,7 +2951,7 @@ enum sci_task_status scic_controller_start_task( set_bit(IREQ_ACTIVE, &ireq->flags); scic_sds_controller_post_request(scic, - scic_sds_request_get_post_context(req)); + scic_sds_request_get_post_context(ireq)); break; default: break; diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index 446fade19b3..0b26d25c19a 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -64,7 +64,7 @@ #include "unsolicited_frame_control.h" #include "probe_roms.h" -struct scic_sds_request; +struct isci_request; struct scu_task_context; @@ -601,7 +601,7 @@ union scu_remote_node_context *scic_sds_controller_get_remote_node_context_buffe struct scic_sds_controller *scic, u16 node_id); -struct scic_sds_request *scic_request_by_tag(struct scic_sds_controller *scic, +struct isci_request *scic_request_by_tag(struct scic_sds_controller *scic, u16 io_tag); void scic_sds_controller_power_control_queue_insert( @@ -628,11 +628,11 @@ void scic_sds_controller_remote_device_stopped( void scic_sds_controller_copy_task_context( struct scic_sds_controller *scic, - struct scic_sds_request *this_request); + struct isci_request *ireq); void scic_sds_controller_register_setup(struct scic_sds_controller *scic); -enum sci_status scic_controller_continue_io(struct scic_sds_request *sci_req); +enum sci_status scic_controller_continue_io(struct isci_request *ireq); int isci_host_scan_finished(struct Scsi_Host *, unsigned long); void isci_host_scan_start(struct Scsi_Host *); u16 isci_alloc_tag(struct isci_host *ihost); @@ -665,22 +665,22 @@ void scic_controller_disable_interrupts( enum sci_status scic_controller_start_io( struct scic_sds_controller *scic, struct scic_sds_remote_device *remote_device, - struct scic_sds_request *io_request); + struct isci_request *ireq); enum sci_task_status scic_controller_start_task( struct scic_sds_controller *scic, struct scic_sds_remote_device *remote_device, - struct scic_sds_request *task_request); + struct isci_request *ireq); enum sci_status scic_controller_terminate_request( struct scic_sds_controller *scic, struct scic_sds_remote_device *remote_device, - struct scic_sds_request *request); + struct isci_request *ireq); enum sci_status scic_controller_complete_io( struct scic_sds_controller *scic, struct scic_sds_remote_device *remote_device, - struct scic_sds_request *io_request); + struct isci_request *ireq); void scic_sds_port_configuration_agent_construct( struct scic_sds_port_configuration_agent *port_agent); diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c index c01d76210aa..98d93aeea75 100644 --- a/drivers/scsi/isci/phy.c +++ b/drivers/scsi/isci/phy.c @@ -983,7 +983,7 @@ enum sci_status scic_sds_phy_frame_handler(struct scic_sds_phy *sci_phy, "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } - + } static void scic_sds_phy_starting_initial_substate_enter(struct sci_base_state_machine *sm) diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 0e84e29335d..bd091549b4f 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -1611,7 +1611,7 @@ enum sci_status scic_sds_port_link_down(struct scic_sds_port *sci_port, enum sci_status scic_sds_port_start_io(struct scic_sds_port *sci_port, struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req) + struct isci_request *ireq) { enum scic_sds_port_states state; @@ -1631,7 +1631,7 @@ enum sci_status scic_sds_port_start_io(struct scic_sds_port *sci_port, enum sci_status scic_sds_port_complete_io(struct scic_sds_port *sci_port, struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req) + struct isci_request *ireq) { enum scic_sds_port_states state; diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index a44e541914f..668f3a14cd7 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -354,17 +354,17 @@ enum sci_status scic_sds_port_link_up(struct scic_sds_port *sci_port, enum sci_status scic_sds_port_link_down(struct scic_sds_port *sci_port, struct scic_sds_phy *sci_phy); -struct scic_sds_request; +struct isci_request; struct scic_sds_remote_device; enum sci_status scic_sds_port_start_io( struct scic_sds_port *sci_port, struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req); + struct isci_request *ireq); enum sci_status scic_sds_port_complete_io( struct scic_sds_port *sci_port, struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req); + struct isci_request *ireq); enum sas_linkrate scic_sds_port_get_max_allowed_speed( struct scic_sds_port *sci_port); diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index 5a86bb1e96d..c7cb0c54df5 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -94,7 +94,7 @@ static void isci_remote_device_not_ready(struct isci_host *ihost, scic_controller_terminate_request(&ihost->sci, &idev->sci, - &ireq->sci); + ireq); } /* Fall through into the default case... */ default: @@ -142,14 +142,13 @@ static enum sci_status scic_sds_remote_device_terminate_requests(struct scic_sds for (i = 0; i < SCI_MAX_IO_REQUESTS && i < request_count; i++) { struct isci_request *ireq = ihost->reqs[i]; - struct scic_sds_request *sci_req = &ireq->sci; enum sci_status s; if (!test_bit(IREQ_ACTIVE, &ireq->flags) || - sci_req->target_device != sci_dev) + ireq->target_device != sci_dev) continue; - s = scic_controller_terminate_request(scic, sci_dev, sci_req); + s = scic_controller_terminate_request(scic, sci_dev, ireq); if (s != SCI_SUCCESS) status = s; } @@ -299,7 +298,7 @@ enum sci_status scic_sds_remote_device_frame_handler(struct scic_sds_remote_devi case SCI_DEV_STOPPING: case SCI_DEV_FAILED: case SCI_DEV_RESETTING: { - struct scic_sds_request *sci_req; + struct isci_request *ireq; struct ssp_frame_hdr hdr; void *frame_header; ssize_t word_cnt; @@ -313,10 +312,10 @@ enum sci_status scic_sds_remote_device_frame_handler(struct scic_sds_remote_devi word_cnt = sizeof(hdr) / sizeof(u32); sci_swab32_cpy(&hdr, frame_header, word_cnt); - sci_req = scic_request_by_tag(scic, be16_to_cpu(hdr.tag)); - if (sci_req && sci_req->target_device == sci_dev) { + ireq = scic_request_by_tag(scic, be16_to_cpu(hdr.tag)); + if (ireq && ireq->target_device == sci_dev) { /* The IO request is now in charge of releasing the frame */ - status = scic_sds_io_request_frame_handler(sci_req, frame_index); + status = scic_sds_io_request_frame_handler(ireq, frame_index); } else { /* We could not map this tag to a valid IO * request Just toss the frame and continue @@ -448,14 +447,14 @@ enum sci_status scic_sds_remote_device_event_handler(struct scic_sds_remote_devi } static void scic_sds_remote_device_start_request(struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req, + struct isci_request *ireq, enum sci_status status) { struct scic_sds_port *sci_port = sci_dev->owning_port; /* cleanup requests that failed after starting on the port */ if (status != SCI_SUCCESS) - scic_sds_port_complete_io(sci_port, sci_dev, sci_req); + scic_sds_port_complete_io(sci_port, sci_dev, ireq); else { kref_get(&sci_dev_to_idev(sci_dev)->kref); scic_sds_remote_device_increment_request_count(sci_dev); @@ -464,12 +463,11 @@ static void scic_sds_remote_device_start_request(struct scic_sds_remote_device * enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic, struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req) + struct isci_request *ireq) { struct sci_base_state_machine *sm = &sci_dev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; struct scic_sds_port *sci_port = sci_dev->owning_port; - struct isci_request *ireq = sci_req_to_ireq(sci_req); enum sci_status status; switch (state) { @@ -491,15 +489,15 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic * successful it will start the request for the port object then * increment its own request count. */ - status = scic_sds_port_start_io(sci_port, sci_dev, sci_req); + status = scic_sds_port_start_io(sci_port, sci_dev, ireq); if (status != SCI_SUCCESS) return status; - status = scic_sds_remote_node_context_start_io(&sci_dev->rnc, sci_req); + status = scic_sds_remote_node_context_start_io(&sci_dev->rnc, ireq); if (status != SCI_SUCCESS) break; - status = scic_sds_request_start(sci_req); + status = scic_sds_request_start(ireq); break; case SCI_STP_DEV_IDLE: { /* handle the start io operation for a sata device that is in @@ -513,22 +511,22 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic enum scic_sds_remote_device_states new_state; struct sas_task *task = isci_request_access_task(ireq); - status = scic_sds_port_start_io(sci_port, sci_dev, sci_req); + status = scic_sds_port_start_io(sci_port, sci_dev, ireq); if (status != SCI_SUCCESS) return status; - status = scic_sds_remote_node_context_start_io(&sci_dev->rnc, sci_req); + status = scic_sds_remote_node_context_start_io(&sci_dev->rnc, ireq); if (status != SCI_SUCCESS) break; - status = scic_sds_request_start(sci_req); + status = scic_sds_request_start(ireq); if (status != SCI_SUCCESS) break; if (task->ata_task.use_ncq) new_state = SCI_STP_DEV_NCQ; else { - sci_dev->working_request = sci_req; + sci_dev->working_request = ireq; new_state = SCI_STP_DEV_CMD; } sci_change_state(sm, new_state); @@ -538,15 +536,15 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic struct sas_task *task = isci_request_access_task(ireq); if (task->ata_task.use_ncq) { - status = scic_sds_port_start_io(sci_port, sci_dev, sci_req); + status = scic_sds_port_start_io(sci_port, sci_dev, ireq); if (status != SCI_SUCCESS) return status; - status = scic_sds_remote_node_context_start_io(&sci_dev->rnc, sci_req); + status = scic_sds_remote_node_context_start_io(&sci_dev->rnc, ireq); if (status != SCI_SUCCESS) break; - status = scic_sds_request_start(sci_req); + status = scic_sds_request_start(ireq); } else return SCI_FAILURE_INVALID_STATE; break; @@ -554,19 +552,19 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic case SCI_STP_DEV_AWAIT_RESET: return SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED; case SCI_SMP_DEV_IDLE: - status = scic_sds_port_start_io(sci_port, sci_dev, sci_req); + status = scic_sds_port_start_io(sci_port, sci_dev, ireq); if (status != SCI_SUCCESS) return status; - status = scic_sds_remote_node_context_start_io(&sci_dev->rnc, sci_req); + status = scic_sds_remote_node_context_start_io(&sci_dev->rnc, ireq); if (status != SCI_SUCCESS) break; - status = scic_sds_request_start(sci_req); + status = scic_sds_request_start(ireq); if (status != SCI_SUCCESS) break; - sci_dev->working_request = sci_req; + sci_dev->working_request = ireq; sci_change_state(&sci_dev->sm, SCI_SMP_DEV_CMD); break; case SCI_STP_DEV_CMD: @@ -577,21 +575,21 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic return SCI_FAILURE_INVALID_STATE; } - scic_sds_remote_device_start_request(sci_dev, sci_req, status); + scic_sds_remote_device_start_request(sci_dev, ireq, status); return status; } static enum sci_status common_complete_io(struct scic_sds_port *sci_port, struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req) + struct isci_request *ireq) { enum sci_status status; - status = scic_sds_request_complete(sci_req); + status = scic_sds_request_complete(ireq); if (status != SCI_SUCCESS) return status; - status = scic_sds_port_complete_io(sci_port, sci_dev, sci_req); + status = scic_sds_port_complete_io(sci_port, sci_dev, ireq); if (status != SCI_SUCCESS) return status; @@ -601,7 +599,7 @@ static enum sci_status common_complete_io(struct scic_sds_port *sci_port, enum sci_status scic_sds_remote_device_complete_io(struct scic_sds_controller *scic, struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req) + struct isci_request *ireq) { struct sci_base_state_machine *sm = &sci_dev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; @@ -623,16 +621,16 @@ enum sci_status scic_sds_remote_device_complete_io(struct scic_sds_controller *s case SCI_DEV_READY: case SCI_STP_DEV_AWAIT_RESET: case SCI_DEV_RESETTING: - status = common_complete_io(sci_port, sci_dev, sci_req); + status = common_complete_io(sci_port, sci_dev, ireq); break; case SCI_STP_DEV_CMD: case SCI_STP_DEV_NCQ: case SCI_STP_DEV_NCQ_ERROR: - status = common_complete_io(sci_port, sci_dev, sci_req); + status = common_complete_io(sci_port, sci_dev, ireq); if (status != SCI_SUCCESS) break; - if (sci_req->sci_status == SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED) { + if (ireq->sci_status == SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED) { /* This request causes hardware error, device needs to be Lun Reset. * So here we force the state machine to IDLE state so the rest IOs * can reach RNC state handler, these IOs will be completed by RNC with @@ -643,13 +641,13 @@ enum sci_status scic_sds_remote_device_complete_io(struct scic_sds_controller *s sci_change_state(sm, SCI_STP_DEV_IDLE); break; case SCI_SMP_DEV_CMD: - status = common_complete_io(sci_port, sci_dev, sci_req); + status = common_complete_io(sci_port, sci_dev, ireq); if (status != SCI_SUCCESS) break; sci_change_state(sm, SCI_SMP_DEV_IDLE); break; case SCI_DEV_STOPPING: - status = common_complete_io(sci_port, sci_dev, sci_req); + status = common_complete_io(sci_port, sci_dev, ireq); if (status != SCI_SUCCESS) break; @@ -664,7 +662,7 @@ enum sci_status scic_sds_remote_device_complete_io(struct scic_sds_controller *s dev_err(scirdev_to_dev(sci_dev), "%s: Port:0x%p Device:0x%p Request:0x%p Status:0x%x " "could not complete\n", __func__, sci_port, - sci_dev, sci_req, status); + sci_dev, ireq, status); else isci_put_device(sci_dev_to_idev(sci_dev)); @@ -682,7 +680,7 @@ static void scic_sds_remote_device_continue_request(void *dev) enum sci_status scic_sds_remote_device_start_task(struct scic_sds_controller *scic, struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req) + struct isci_request *ireq) { struct sci_base_state_machine *sm = &sci_dev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; @@ -708,15 +706,15 @@ enum sci_status scic_sds_remote_device_start_task(struct scic_sds_controller *sc case SCI_STP_DEV_NCQ: case SCI_STP_DEV_NCQ_ERROR: case SCI_STP_DEV_AWAIT_RESET: - status = scic_sds_port_start_io(sci_port, sci_dev, sci_req); + status = scic_sds_port_start_io(sci_port, sci_dev, ireq); if (status != SCI_SUCCESS) return status; - status = scic_sds_remote_node_context_start_task(&sci_dev->rnc, sci_req); + status = scic_sds_remote_node_context_start_task(&sci_dev->rnc, ireq); if (status != SCI_SUCCESS) goto out; - status = scic_sds_request_start(sci_req); + status = scic_sds_request_start(ireq); if (status != SCI_SUCCESS) goto out; @@ -724,7 +722,7 @@ enum sci_status scic_sds_remote_device_start_task(struct scic_sds_controller *sc * replace the request that probably resulted in the task * management request. */ - sci_dev->working_request = sci_req; + sci_dev->working_request = ireq; sci_change_state(sm, SCI_STP_DEV_CMD); /* The remote node context must cleanup the TCi to NCQ mapping @@ -741,25 +739,25 @@ enum sci_status scic_sds_remote_device_start_task(struct scic_sds_controller *sc sci_dev); out: - scic_sds_remote_device_start_request(sci_dev, sci_req, status); + scic_sds_remote_device_start_request(sci_dev, ireq, status); /* We need to let the controller start request handler know that * it can't post TC yet. We will provide a callback function to * post TC when RNC gets resumed. */ return SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS; case SCI_DEV_READY: - status = scic_sds_port_start_io(sci_port, sci_dev, sci_req); + status = scic_sds_port_start_io(sci_port, sci_dev, ireq); if (status != SCI_SUCCESS) return status; - status = scic_sds_remote_node_context_start_task(&sci_dev->rnc, sci_req); + status = scic_sds_remote_node_context_start_task(&sci_dev->rnc, ireq); if (status != SCI_SUCCESS) break; - status = scic_sds_request_start(sci_req); + status = scic_sds_request_start(ireq); break; } - scic_sds_remote_device_start_request(sci_dev, sci_req, status); + scic_sds_remote_device_start_request(sci_dev, ireq, status); return status; } diff --git a/drivers/scsi/isci/remote_device.h b/drivers/scsi/isci/remote_device.h index 0d9e37fe734..6ac5dfb7d1d 100644 --- a/drivers/scsi/isci/remote_device.h +++ b/drivers/scsi/isci/remote_device.h @@ -120,7 +120,7 @@ struct scic_sds_remote_device { * used only for SATA requests since the unsolicited frames we get from the * hardware have no Tag value to look up the io request object. */ - struct scic_sds_request *working_request; + struct isci_request *working_request; /** * This field contains the reason for the remote device going not_ready. It is @@ -466,17 +466,17 @@ enum sci_status scic_sds_remote_device_event_handler( enum sci_status scic_sds_remote_device_start_io( struct scic_sds_controller *controller, struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *io_request); + struct isci_request *ireq); enum sci_status scic_sds_remote_device_start_task( struct scic_sds_controller *controller, struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *io_request); + struct isci_request *ireq); enum sci_status scic_sds_remote_device_complete_io( struct scic_sds_controller *controller, struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *io_request); + struct isci_request *ireq); enum sci_status scic_sds_remote_device_suspend( struct scic_sds_remote_device *sci_dev, diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index b6774bcdabd..1b51fe55314 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -598,7 +598,7 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_ } enum sci_status scic_sds_remote_node_context_start_io(struct scic_sds_remote_node_context *sci_rnc, - struct scic_sds_request *sci_req) + struct isci_request *ireq) { enum scis_sds_remote_node_context_states state; @@ -623,7 +623,7 @@ enum sci_status scic_sds_remote_node_context_start_io(struct scic_sds_remote_nod } enum sci_status scic_sds_remote_node_context_start_task(struct scic_sds_remote_node_context *sci_rnc, - struct scic_sds_request *sci_req) + struct isci_request *ireq) { enum scis_sds_remote_node_context_states state; diff --git a/drivers/scsi/isci/remote_node_context.h b/drivers/scsi/isci/remote_node_context.h index 67a45b686a9..35e6ae61690 100644 --- a/drivers/scsi/isci/remote_node_context.h +++ b/drivers/scsi/isci/remote_node_context.h @@ -78,7 +78,7 @@ #define SCU_HARDWARE_SUSPENSION (0) #define SCI_SOFTWARE_SUSPENSION (1) -struct scic_sds_request; +struct isci_request; struct scic_sds_remote_device; struct scic_sds_remote_node_context; @@ -220,8 +220,8 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_ scics_sds_remote_node_context_callback cb_fn, void *cb_p); enum sci_status scic_sds_remote_node_context_start_task(struct scic_sds_remote_node_context *sci_rnc, - struct scic_sds_request *sci_req); + struct isci_request *ireq); enum sci_status scic_sds_remote_node_context_start_io(struct scic_sds_remote_node_context *sci_rnc, - struct scic_sds_request *sci_req); + struct isci_request *ireq); #endif /* _SCIC_SDS_REMOTE_NODE_CONTEXT_H_ */ diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index 8520626b02f..c544bc79ce1 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -61,35 +61,35 @@ #include "scu_event_codes.h" #include "sas.h" -static struct scu_sgl_element_pair *to_sgl_element_pair(struct scic_sds_request *sci_req, +static struct scu_sgl_element_pair *to_sgl_element_pair(struct isci_request *ireq, int idx) { if (idx == 0) - return &sci_req->tc->sgl_pair_ab; + return &ireq->tc->sgl_pair_ab; else if (idx == 1) - return &sci_req->tc->sgl_pair_cd; + return &ireq->tc->sgl_pair_cd; else if (idx < 0) return NULL; else - return &sci_req->sg_table[idx - 2]; + return &ireq->sg_table[idx - 2]; } static dma_addr_t to_sgl_element_pair_dma(struct scic_sds_controller *scic, - struct scic_sds_request *sci_req, u32 idx) + struct isci_request *ireq, u32 idx) { u32 offset; if (idx == 0) { - offset = (void *) &sci_req->tc->sgl_pair_ab - + offset = (void *) &ireq->tc->sgl_pair_ab - (void *) &scic->task_context_table[0]; return scic->task_context_dma + offset; } else if (idx == 1) { - offset = (void *) &sci_req->tc->sgl_pair_cd - + offset = (void *) &ireq->tc->sgl_pair_cd - (void *) &scic->task_context_table[0]; return scic->task_context_dma + offset; } - return scic_io_request_get_dma_addr(sci_req, &sci_req->sg_table[idx - 2]); + return scic_io_request_get_dma_addr(ireq, &ireq->sg_table[idx - 2]); } static void init_sgl_element(struct scu_sgl_element *e, struct scatterlist *sg) @@ -100,12 +100,11 @@ static void init_sgl_element(struct scu_sgl_element *e, struct scatterlist *sg) e->address_modifier = 0; } -static void scic_sds_request_build_sgl(struct scic_sds_request *sds_request) +static void scic_sds_request_build_sgl(struct isci_request *ireq) { - struct isci_request *isci_request = sci_req_to_ireq(sds_request); - struct isci_host *isci_host = isci_request->isci_host; + struct isci_host *isci_host = ireq->isci_host; struct scic_sds_controller *scic = &isci_host->sci; - struct sas_task *task = isci_request_access_task(isci_request); + struct sas_task *task = isci_request_access_task(ireq); struct scatterlist *sg = NULL; dma_addr_t dma_addr; u32 sg_idx = 0; @@ -116,7 +115,7 @@ static void scic_sds_request_build_sgl(struct scic_sds_request *sds_request) sg = task->scatter; while (sg) { - scu_sg = to_sgl_element_pair(sds_request, sg_idx); + scu_sg = to_sgl_element_pair(ireq, sg_idx); init_sgl_element(&scu_sg->A, sg); sg = sg_next(sg); if (sg) { @@ -127,7 +126,7 @@ static void scic_sds_request_build_sgl(struct scic_sds_request *sds_request) if (prev_sg) { dma_addr = to_sgl_element_pair_dma(scic, - sds_request, + ireq, sg_idx); prev_sg->next_pair_upper = @@ -140,14 +139,14 @@ static void scic_sds_request_build_sgl(struct scic_sds_request *sds_request) sg_idx++; } } else { /* handle when no sg */ - scu_sg = to_sgl_element_pair(sds_request, sg_idx); + scu_sg = to_sgl_element_pair(ireq, sg_idx); dma_addr = dma_map_single(&isci_host->pdev->dev, task->scatter, task->total_xfer_len, task->data_dir); - isci_request->zero_scatter_daddr = dma_addr; + ireq->zero_scatter_daddr = dma_addr; scu_sg->A.length = task->total_xfer_len; scu_sg->A.address_upper = upper_32_bits(dma_addr); @@ -160,13 +159,12 @@ static void scic_sds_request_build_sgl(struct scic_sds_request *sds_request) } } -static void scic_sds_io_request_build_ssp_command_iu(struct scic_sds_request *sci_req) +static void scic_sds_io_request_build_ssp_command_iu(struct isci_request *ireq) { struct ssp_cmd_iu *cmd_iu; - struct isci_request *ireq = sci_req_to_ireq(sci_req); struct sas_task *task = isci_request_access_task(ireq); - cmd_iu = &sci_req->ssp.cmd; + cmd_iu = &ireq->ssp.cmd; memcpy(cmd_iu->LUN, task->ssp_task.LUN, 8); cmd_iu->add_cdb_len = 0; @@ -181,14 +179,13 @@ static void scic_sds_io_request_build_ssp_command_iu(struct scic_sds_request *sc sizeof(task->ssp_task.cdb) / sizeof(u32)); } -static void scic_sds_task_request_build_ssp_task_iu(struct scic_sds_request *sci_req) +static void scic_sds_task_request_build_ssp_task_iu(struct isci_request *ireq) { struct ssp_task_iu *task_iu; - struct isci_request *ireq = sci_req_to_ireq(sci_req); struct sas_task *task = isci_request_access_task(ireq); struct isci_tmf *isci_tmf = isci_request_access_tmf(ireq); - task_iu = &sci_req->ssp.tmf; + task_iu = &ireq->ssp.tmf; memset(task_iu, 0, sizeof(struct ssp_task_iu)); @@ -208,15 +205,15 @@ static void scic_sds_task_request_build_ssp_task_iu(struct scic_sds_request *sci * */ static void scu_ssp_reqeust_construct_task_context( - struct scic_sds_request *sds_request, + struct isci_request *ireq, struct scu_task_context *task_context) { dma_addr_t dma_addr; struct scic_sds_remote_device *target_device; struct scic_sds_port *target_port; - target_device = scic_sds_request_get_device(sds_request); - target_port = scic_sds_request_get_port(sds_request); + target_device = scic_sds_request_get_device(ireq); + target_port = scic_sds_request_get_port(ireq); /* Fill in the TC with the its required data */ task_context->abort = 0; @@ -232,7 +229,7 @@ static void scu_ssp_reqeust_construct_task_context( task_context->context_type = SCU_TASK_CONTEXT_TYPE; task_context->remote_node_index = - scic_sds_remote_device_get_index(sds_request->target_device); + scic_sds_remote_device_get_index(ireq->target_device); task_context->command_code = 0; task_context->link_layer_control = 0; @@ -244,22 +241,21 @@ static void scu_ssp_reqeust_construct_task_context( task_context->address_modifier = 0; - /* task_context->type.ssp.tag = sci_req->io_tag; */ + /* task_context->type.ssp.tag = ireq->io_tag; */ task_context->task_phase = 0x01; - sds_request->post_context = (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | + ireq->post_context = (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | (scic_sds_controller_get_protocol_engine_group(controller) << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | (scic_sds_port_get_index(target_port) << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | - ISCI_TAG_TCI(sds_request->io_tag)); + ISCI_TAG_TCI(ireq->io_tag)); /* * Copy the physical address for the command buffer to the * SCU Task Context */ - dma_addr = scic_io_request_get_dma_addr(sds_request, - &sds_request->ssp.cmd); + dma_addr = scic_io_request_get_dma_addr(ireq, &ireq->ssp.cmd); task_context->command_iu_upper = upper_32_bits(dma_addr); task_context->command_iu_lower = lower_32_bits(dma_addr); @@ -268,8 +264,7 @@ static void scu_ssp_reqeust_construct_task_context( * Copy the physical address for the response buffer to the * SCU Task Context */ - dma_addr = scic_io_request_get_dma_addr(sds_request, - &sds_request->ssp.rsp); + dma_addr = scic_io_request_get_dma_addr(ireq, &ireq->ssp.rsp); task_context->response_iu_upper = upper_32_bits(dma_addr); task_context->response_iu_lower = lower_32_bits(dma_addr); @@ -280,13 +275,13 @@ static void scu_ssp_reqeust_construct_task_context( * @sci_req: * */ -static void scu_ssp_io_request_construct_task_context(struct scic_sds_request *sci_req, +static void scu_ssp_io_request_construct_task_context(struct isci_request *ireq, enum dma_data_direction dir, u32 len) { - struct scu_task_context *task_context = sci_req->tc; + struct scu_task_context *task_context = ireq->tc; - scu_ssp_reqeust_construct_task_context(sci_req, task_context); + scu_ssp_reqeust_construct_task_context(ireq, task_context); task_context->ssp_command_iu_length = sizeof(struct ssp_cmd_iu) / sizeof(u32); @@ -306,7 +301,7 @@ static void scu_ssp_io_request_construct_task_context(struct scic_sds_request *s task_context->transfer_length_bytes = len; if (task_context->transfer_length_bytes > 0) - scic_sds_request_build_sgl(sci_req); + scic_sds_request_build_sgl(ireq); } /** @@ -322,11 +317,11 @@ static void scu_ssp_io_request_construct_task_context(struct scic_sds_request *s * constructed. * */ -static void scu_ssp_task_request_construct_task_context(struct scic_sds_request *sci_req) +static void scu_ssp_task_request_construct_task_context(struct isci_request *ireq) { - struct scu_task_context *task_context = sci_req->tc; + struct scu_task_context *task_context = ireq->tc; - scu_ssp_reqeust_construct_task_context(sci_req, task_context); + scu_ssp_reqeust_construct_task_context(ireq, task_context); task_context->control_frame = 1; task_context->priority = SCU_TASK_PRIORITY_HIGH; @@ -350,15 +345,15 @@ static void scu_ssp_task_request_construct_task_context(struct scic_sds_request * determine what is common for SSP/SMP/STP task context structures. */ static void scu_sata_reqeust_construct_task_context( - struct scic_sds_request *sci_req, + struct isci_request *ireq, struct scu_task_context *task_context) { dma_addr_t dma_addr; struct scic_sds_remote_device *target_device; struct scic_sds_port *target_port; - target_device = scic_sds_request_get_device(sci_req); - target_port = scic_sds_request_get_port(sci_req); + target_device = scic_sds_request_get_device(ireq); + target_port = scic_sds_request_get_port(ireq); /* Fill in the TC with the its required data */ task_context->abort = 0; @@ -374,7 +369,7 @@ static void scu_sata_reqeust_construct_task_context( task_context->context_type = SCU_TASK_CONTEXT_TYPE; task_context->remote_node_index = - scic_sds_remote_device_get_index(sci_req->target_device); + scic_sds_remote_device_get_index(ireq->target_device); task_context->command_code = 0; task_context->link_layer_control = 0; @@ -391,21 +386,21 @@ static void scu_sata_reqeust_construct_task_context( (sizeof(struct host_to_dev_fis) - sizeof(u32)) / sizeof(u32); /* Set the first word of the H2D REG FIS */ - task_context->type.words[0] = *(u32 *)&sci_req->stp.cmd; + task_context->type.words[0] = *(u32 *)&ireq->stp.cmd; - sci_req->post_context = (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | + ireq->post_context = (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | (scic_sds_controller_get_protocol_engine_group(controller) << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | (scic_sds_port_get_index(target_port) << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | - ISCI_TAG_TCI(sci_req->io_tag)); + ISCI_TAG_TCI(ireq->io_tag)); /* * Copy the physical address for the command buffer to the SCU Task * Context. We must offset the command buffer by 4 bytes because the * first 4 bytes are transfered in the body of the TC. */ - dma_addr = scic_io_request_get_dma_addr(sci_req, - ((char *) &sci_req->stp.cmd) + + dma_addr = scic_io_request_get_dma_addr(ireq, + ((char *) &ireq->stp.cmd) + sizeof(u32)); task_context->command_iu_upper = upper_32_bits(dma_addr); @@ -416,11 +411,11 @@ static void scu_sata_reqeust_construct_task_context( task_context->response_iu_lower = 0; } -static void scu_stp_raw_request_construct_task_context(struct scic_sds_request *sci_req) +static void scu_stp_raw_request_construct_task_context(struct isci_request *ireq) { - struct scu_task_context *task_context = sci_req->tc; + struct scu_task_context *task_context = ireq->tc; - scu_sata_reqeust_construct_task_context(sci_req, task_context); + scu_sata_reqeust_construct_task_context(ireq, task_context); task_context->control_frame = 0; task_context->priority = SCU_TASK_PRIORITY_NORMAL; @@ -429,20 +424,19 @@ static void scu_stp_raw_request_construct_task_context(struct scic_sds_request * task_context->transfer_length_bytes = sizeof(struct host_to_dev_fis) - sizeof(u32); } -static enum sci_status -scic_sds_stp_pio_request_construct(struct scic_sds_request *sci_req, - bool copy_rx_frame) +static enum sci_status scic_sds_stp_pio_request_construct(struct isci_request *ireq, + bool copy_rx_frame) { - struct isci_stp_request *stp_req = &sci_req->stp.req; + struct isci_stp_request *stp_req = &ireq->stp.req; - scu_stp_raw_request_construct_task_context(sci_req); + scu_stp_raw_request_construct_task_context(ireq); stp_req->status = 0; stp_req->sgl.offset = 0; stp_req->sgl.set = SCU_SGL_ELEMENT_PAIR_A; if (copy_rx_frame) { - scic_sds_request_build_sgl(sci_req); + scic_sds_request_build_sgl(ireq); stp_req->sgl.index = 0; } else { /* The user does not want the data copied to the SGL buffer location */ @@ -464,18 +458,18 @@ scic_sds_stp_pio_request_construct(struct scic_sds_request *sci_req, * requests that are optimized by the silicon (i.e. UDMA, NCQ). This method * returns an indication as to whether the construction was successful. */ -static void scic_sds_stp_optimized_request_construct(struct scic_sds_request *sci_req, +static void scic_sds_stp_optimized_request_construct(struct isci_request *ireq, u8 optimized_task_type, u32 len, enum dma_data_direction dir) { - struct scu_task_context *task_context = sci_req->tc; + struct scu_task_context *task_context = ireq->tc; /* Build the STP task context structure */ - scu_sata_reqeust_construct_task_context(sci_req, task_context); + scu_sata_reqeust_construct_task_context(ireq, task_context); /* Copy over the SGL elements */ - scic_sds_request_build_sgl(sci_req); + scic_sds_request_build_sgl(ireq); /* Copy over the number of bytes to be transfered */ task_context->transfer_length_bytes = len; @@ -500,13 +494,12 @@ static void scic_sds_stp_optimized_request_construct(struct scic_sds_request *sc static enum sci_status -scic_io_request_construct_sata(struct scic_sds_request *sci_req, +scic_io_request_construct_sata(struct isci_request *ireq, u32 len, enum dma_data_direction dir, bool copy) { enum sci_status status = SCI_SUCCESS; - struct isci_request *ireq = sci_req_to_ireq(sci_req); struct sas_task *task = isci_request_access_task(ireq); /* check for management protocols */ @@ -515,20 +508,20 @@ scic_io_request_construct_sata(struct scic_sds_request *sci_req, if (tmf->tmf_code == isci_tmf_sata_srst_high || tmf->tmf_code == isci_tmf_sata_srst_low) { - scu_stp_raw_request_construct_task_context(sci_req); + scu_stp_raw_request_construct_task_context(ireq); return SCI_SUCCESS; } else { - dev_err(scic_to_dev(sci_req->owning_controller), + dev_err(scic_to_dev(ireq->owning_controller), "%s: Request 0x%p received un-handled SAT " "management protocol 0x%x.\n", - __func__, sci_req, tmf->tmf_code); + __func__, ireq, tmf->tmf_code); return SCI_FAILURE; } } if (!sas_protocol_ata(task->task_proto)) { - dev_err(scic_to_dev(sci_req->owning_controller), + dev_err(scic_to_dev(ireq->owning_controller), "%s: Non-ATA protocol in SATA path: 0x%x\n", __func__, task->task_proto); @@ -538,13 +531,13 @@ scic_io_request_construct_sata(struct scic_sds_request *sci_req, /* non data */ if (task->data_dir == DMA_NONE) { - scu_stp_raw_request_construct_task_context(sci_req); + scu_stp_raw_request_construct_task_context(ireq); return SCI_SUCCESS; } /* NCQ */ if (task->ata_task.use_ncq) { - scic_sds_stp_optimized_request_construct(sci_req, + scic_sds_stp_optimized_request_construct(ireq, SCU_TASK_TYPE_FPDMAQ_READ, len, dir); return SCI_SUCCESS; @@ -552,74 +545,71 @@ scic_io_request_construct_sata(struct scic_sds_request *sci_req, /* DMA */ if (task->ata_task.dma_xfer) { - scic_sds_stp_optimized_request_construct(sci_req, + scic_sds_stp_optimized_request_construct(ireq, SCU_TASK_TYPE_DMA_IN, len, dir); return SCI_SUCCESS; } else /* PIO */ - return scic_sds_stp_pio_request_construct(sci_req, copy); + return scic_sds_stp_pio_request_construct(ireq, copy); return status; } -static enum sci_status scic_io_request_construct_basic_ssp(struct scic_sds_request *sci_req) +static enum sci_status scic_io_request_construct_basic_ssp(struct isci_request *ireq) { - struct isci_request *ireq = sci_req_to_ireq(sci_req); struct sas_task *task = isci_request_access_task(ireq); - sci_req->protocol = SCIC_SSP_PROTOCOL; + ireq->protocol = SCIC_SSP_PROTOCOL; - scu_ssp_io_request_construct_task_context(sci_req, + scu_ssp_io_request_construct_task_context(ireq, task->data_dir, task->total_xfer_len); - scic_sds_io_request_build_ssp_command_iu(sci_req); + scic_sds_io_request_build_ssp_command_iu(ireq); - sci_change_state(&sci_req->sm, SCI_REQ_CONSTRUCTED); + sci_change_state(&ireq->sm, SCI_REQ_CONSTRUCTED); return SCI_SUCCESS; } enum sci_status scic_task_request_construct_ssp( - struct scic_sds_request *sci_req) + struct isci_request *ireq) { /* Construct the SSP Task SCU Task Context */ - scu_ssp_task_request_construct_task_context(sci_req); + scu_ssp_task_request_construct_task_context(ireq); /* Fill in the SSP Task IU */ - scic_sds_task_request_build_ssp_task_iu(sci_req); + scic_sds_task_request_build_ssp_task_iu(ireq); - sci_change_state(&sci_req->sm, SCI_REQ_CONSTRUCTED); + sci_change_state(&ireq->sm, SCI_REQ_CONSTRUCTED); return SCI_SUCCESS; } -static enum sci_status scic_io_request_construct_basic_sata(struct scic_sds_request *sci_req) +static enum sci_status scic_io_request_construct_basic_sata(struct isci_request *ireq) { enum sci_status status; bool copy = false; - struct isci_request *isci_request = sci_req_to_ireq(sci_req); - struct sas_task *task = isci_request_access_task(isci_request); + struct sas_task *task = isci_request_access_task(ireq); - sci_req->protocol = SCIC_STP_PROTOCOL; + ireq->protocol = SCIC_STP_PROTOCOL; copy = (task->data_dir == DMA_NONE) ? false : true; - status = scic_io_request_construct_sata(sci_req, + status = scic_io_request_construct_sata(ireq, task->total_xfer_len, task->data_dir, copy); if (status == SCI_SUCCESS) - sci_change_state(&sci_req->sm, SCI_REQ_CONSTRUCTED); + sci_change_state(&ireq->sm, SCI_REQ_CONSTRUCTED); return status; } -enum sci_status scic_task_request_construct_sata(struct scic_sds_request *sci_req) +enum sci_status scic_task_request_construct_sata(struct isci_request *ireq) { enum sci_status status = SCI_SUCCESS; - struct isci_request *ireq = sci_req_to_ireq(sci_req); /* check for management protocols */ if (ireq->ttype == tmf_task) { @@ -627,12 +617,12 @@ enum sci_status scic_task_request_construct_sata(struct scic_sds_request *sci_re if (tmf->tmf_code == isci_tmf_sata_srst_high || tmf->tmf_code == isci_tmf_sata_srst_low) { - scu_stp_raw_request_construct_task_context(sci_req); + scu_stp_raw_request_construct_task_context(ireq); } else { - dev_err(scic_to_dev(sci_req->owning_controller), + dev_err(scic_to_dev(ireq->owning_controller), "%s: Request 0x%p received un-handled SAT " "Protocol 0x%x.\n", - __func__, sci_req, tmf->tmf_code); + __func__, ireq, tmf->tmf_code); return SCI_FAILURE; } @@ -640,7 +630,7 @@ enum sci_status scic_task_request_construct_sata(struct scic_sds_request *sci_re if (status != SCI_SUCCESS) return status; - sci_change_state(&sci_req->sm, SCI_REQ_CONSTRUCTED); + sci_change_state(&ireq->sm, SCI_REQ_CONSTRUCTED); return status; } @@ -650,9 +640,9 @@ enum sci_status scic_task_request_construct_sata(struct scic_sds_request *sci_re * @sci_req: request that was terminated early */ #define SCU_TASK_CONTEXT_SRAM 0x200000 -static u32 sci_req_tx_bytes(struct scic_sds_request *sci_req) +static u32 sci_req_tx_bytes(struct isci_request *ireq) { - struct scic_sds_controller *scic = sci_req->owning_controller; + struct scic_sds_controller *scic = ireq->owning_controller; u32 ret_val = 0; if (readl(&scic->smu_registers->address_modifier) == 0) { @@ -666,19 +656,19 @@ static u32 sci_req_tx_bytes(struct scic_sds_request *sci_req) */ ret_val = readl(scu_reg_base + (SCU_TASK_CONTEXT_SRAM + offsetof(struct scu_task_context, type.ssp.data_offset)) + - ((sizeof(struct scu_task_context)) * ISCI_TAG_TCI(sci_req->io_tag))); + ((sizeof(struct scu_task_context)) * ISCI_TAG_TCI(ireq->io_tag))); } return ret_val; } -enum sci_status scic_sds_request_start(struct scic_sds_request *sci_req) +enum sci_status scic_sds_request_start(struct isci_request *ireq) { enum sci_base_request_states state; - struct scu_task_context *tc = sci_req->tc; - struct scic_sds_controller *scic = sci_req->owning_controller; + struct scu_task_context *tc = ireq->tc; + struct scic_sds_controller *scic = ireq->owning_controller; - state = sci_req->sm.current_state_id; + state = ireq->sm.current_state_id; if (state != SCI_REQ_CONSTRUCTED) { dev_warn(scic_to_dev(scic), "%s: SCIC IO Request requested to start while in wrong " @@ -686,19 +676,19 @@ enum sci_status scic_sds_request_start(struct scic_sds_request *sci_req) return SCI_FAILURE_INVALID_STATE; } - tc->task_index = ISCI_TAG_TCI(sci_req->io_tag); + tc->task_index = ISCI_TAG_TCI(ireq->io_tag); switch (tc->protocol_type) { case SCU_TASK_CONTEXT_PROTOCOL_SMP: case SCU_TASK_CONTEXT_PROTOCOL_SSP: /* SSP/SMP Frame */ - tc->type.ssp.tag = sci_req->io_tag; + tc->type.ssp.tag = ireq->io_tag; tc->type.ssp.target_port_transfer_tag = 0xFFFF; break; case SCU_TASK_CONTEXT_PROTOCOL_STP: /* STP/SATA Frame - * tc->type.stp.ncq_tag = sci_req->ncq_tag; + * tc->type.stp.ncq_tag = ireq->ncq_tag; */ break; @@ -713,28 +703,28 @@ enum sci_status scic_sds_request_start(struct scic_sds_request *sci_req) } /* Add to the post_context the io tag value */ - sci_req->post_context |= ISCI_TAG_TCI(sci_req->io_tag); + ireq->post_context |= ISCI_TAG_TCI(ireq->io_tag); /* Everything is good go ahead and change state */ - sci_change_state(&sci_req->sm, SCI_REQ_STARTED); + sci_change_state(&ireq->sm, SCI_REQ_STARTED); return SCI_SUCCESS; } enum sci_status -scic_sds_io_request_terminate(struct scic_sds_request *sci_req) +scic_sds_io_request_terminate(struct isci_request *ireq) { enum sci_base_request_states state; - state = sci_req->sm.current_state_id; + state = ireq->sm.current_state_id; switch (state) { case SCI_REQ_CONSTRUCTED: - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_TASK_ABORT, SCI_FAILURE_IO_TERMINATED); - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); return SCI_SUCCESS; case SCI_REQ_STARTED: case SCI_REQ_TASK_WAIT_TC_COMP: @@ -751,54 +741,54 @@ scic_sds_io_request_terminate(struct scic_sds_request *sci_req) case SCI_REQ_STP_SOFT_RESET_WAIT_H2D_ASSERTED: case SCI_REQ_STP_SOFT_RESET_WAIT_H2D_DIAG: case SCI_REQ_STP_SOFT_RESET_WAIT_D2H: - sci_change_state(&sci_req->sm, SCI_REQ_ABORTING); + sci_change_state(&ireq->sm, SCI_REQ_ABORTING); return SCI_SUCCESS; case SCI_REQ_TASK_WAIT_TC_RESP: - sci_change_state(&sci_req->sm, SCI_REQ_ABORTING); - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_ABORTING); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); return SCI_SUCCESS; case SCI_REQ_ABORTING: - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); return SCI_SUCCESS; case SCI_REQ_COMPLETED: default: - dev_warn(scic_to_dev(sci_req->owning_controller), + dev_warn(scic_to_dev(ireq->owning_controller), "%s: SCIC IO Request requested to abort while in wrong " "state %d\n", __func__, - sci_req->sm.current_state_id); + ireq->sm.current_state_id); break; } return SCI_FAILURE_INVALID_STATE; } -enum sci_status scic_sds_request_complete(struct scic_sds_request *sci_req) +enum sci_status scic_sds_request_complete(struct isci_request *ireq) { enum sci_base_request_states state; - struct scic_sds_controller *scic = sci_req->owning_controller; + struct scic_sds_controller *scic = ireq->owning_controller; - state = sci_req->sm.current_state_id; + state = ireq->sm.current_state_id; if (WARN_ONCE(state != SCI_REQ_COMPLETED, "isci: request completion from wrong state (%d)\n", state)) return SCI_FAILURE_INVALID_STATE; - if (sci_req->saved_rx_frame_index != SCU_INVALID_FRAME_INDEX) + if (ireq->saved_rx_frame_index != SCU_INVALID_FRAME_INDEX) scic_sds_controller_release_frame(scic, - sci_req->saved_rx_frame_index); + ireq->saved_rx_frame_index); /* XXX can we just stop the machine and remove the 'final' state? */ - sci_change_state(&sci_req->sm, SCI_REQ_FINAL); + sci_change_state(&ireq->sm, SCI_REQ_FINAL); return SCI_SUCCESS; } -enum sci_status scic_sds_io_request_event_handler(struct scic_sds_request *sci_req, +enum sci_status scic_sds_io_request_event_handler(struct isci_request *ireq, u32 event_code) { enum sci_base_request_states state; - struct scic_sds_controller *scic = sci_req->owning_controller; + struct scic_sds_controller *scic = ireq->owning_controller; - state = sci_req->sm.current_state_id; + state = ireq->sm.current_state_id; if (state != SCI_REQ_STP_PIO_DATA_IN) { dev_warn(scic_to_dev(scic), "%s: (%x) in wrong state %d\n", @@ -812,7 +802,7 @@ enum sci_status scic_sds_io_request_event_handler(struct scic_sds_request *sci_r /* We are waiting for data and the SCU has R_ERR the data frame. * Go back to waiting for the D2H Register FIS */ - sci_change_state(&sci_req->sm, SCI_REQ_STP_PIO_WAIT_FRAME); + sci_change_state(&ireq->sm, SCI_REQ_STP_PIO_WAIT_FRAME); return SCI_SUCCESS; default: dev_err(scic_to_dev(scic), @@ -832,15 +822,14 @@ enum sci_status scic_sds_io_request_event_handler(struct scic_sds_request *sci_r * @sci_req: This parameter specifies the request object for which to copy * the response data. */ -static void scic_sds_io_request_copy_response(struct scic_sds_request *sci_req) +static void scic_sds_io_request_copy_response(struct isci_request *ireq) { void *resp_buf; u32 len; struct ssp_response_iu *ssp_response; - struct isci_request *ireq = sci_req_to_ireq(sci_req); struct isci_tmf *isci_tmf = isci_request_access_tmf(ireq); - ssp_response = &sci_req->ssp.rsp; + ssp_response = &ireq->ssp.rsp; resp_buf = &isci_tmf->resp.resp_iu; @@ -852,7 +841,7 @@ static void scic_sds_io_request_copy_response(struct scic_sds_request *sci_req) } static enum sci_status -request_started_state_tc_event(struct scic_sds_request *sci_req, +request_started_state_tc_event(struct isci_request *ireq, u32 completion_code) { struct ssp_response_iu *resp_iu; @@ -863,7 +852,7 @@ request_started_state_tc_event(struct scic_sds_request *sci_req, */ switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); break; @@ -875,19 +864,19 @@ request_started_state_tc_event(struct scic_sds_request *sci_req, * truly a failed request or a good request that just got * completed early. */ - struct ssp_response_iu *resp = &sci_req->ssp.rsp; + struct ssp_response_iu *resp = &ireq->ssp.rsp; ssize_t word_cnt = SSP_RESP_IU_MAX_SIZE / sizeof(u32); - sci_swab32_cpy(&sci_req->ssp.rsp, - &sci_req->ssp.rsp, + sci_swab32_cpy(&ireq->ssp.rsp, + &ireq->ssp.rsp, word_cnt); if (resp->status == 0) { - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS_IO_DONE_EARLY); } else { - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); } @@ -896,11 +885,11 @@ request_started_state_tc_event(struct scic_sds_request *sci_req, case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_CHECK_RESPONSE): { ssize_t word_cnt = SSP_RESP_IU_MAX_SIZE / sizeof(u32); - sci_swab32_cpy(&sci_req->ssp.rsp, - &sci_req->ssp.rsp, + sci_swab32_cpy(&ireq->ssp.rsp, + &ireq->ssp.rsp, word_cnt); - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); break; @@ -911,15 +900,15 @@ request_started_state_tc_event(struct scic_sds_request *sci_req, * guaranteed to be received before this completion status is * posted? */ - resp_iu = &sci_req->ssp.rsp; + resp_iu = &ireq->ssp.rsp; datapres = resp_iu->datapres; if (datapres == 1 || datapres == 2) { - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); } else - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); break; @@ -935,13 +924,13 @@ request_started_state_tc_event(struct scic_sds_request *sci_req, case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_UNEXP_SDBFIS): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_REG_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SDB_ERR): - if (sci_req->protocol == SCIC_STP_PROTOCOL) { - scic_sds_request_set_status(sci_req, + if (ireq->protocol == SCIC_STP_PROTOCOL) { + scic_sds_request_set_status(ireq, SCU_GET_COMPLETION_TL_STATUS(completion_code) >> SCU_COMPLETION_TL_STATUS_SHIFT, SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED); } else { - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_GET_COMPLETION_TL_STATUS(completion_code) >> SCU_COMPLETION_TL_STATUS_SHIFT, SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); @@ -959,7 +948,7 @@ request_started_state_tc_event(struct scic_sds_request *sci_req, case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_OPEN_REJECT_STP_RESOURCES_BUSY): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_OPEN_REJECT_PROTOCOL_NOT_SUPPORTED): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_OPEN_REJECT_CONNECTION_RATE_NOT_SUPPORTED): - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_GET_COMPLETION_TL_STATUS(completion_code) >> SCU_COMPLETION_TL_STATUS_SHIFT, SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED); @@ -983,7 +972,7 @@ request_started_state_tc_event(struct scic_sds_request *sci_req, case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_RNCNV_OUTBOUND): default: scic_sds_request_set_status( - sci_req, + ireq, SCU_GET_COMPLETION_TL_STATUS(completion_code) >> SCU_COMPLETION_TL_STATUS_SHIFT, SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); @@ -995,21 +984,21 @@ request_started_state_tc_event(struct scic_sds_request *sci_req, */ /* In all cases we will treat this as the completion of the IO req. */ - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); return SCI_SUCCESS; } static enum sci_status -request_aborting_state_tc_event(struct scic_sds_request *sci_req, +request_aborting_state_tc_event(struct isci_request *ireq, u32 completion_code) { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case (SCU_TASK_DONE_GOOD << SCU_COMPLETION_TL_STATUS_SHIFT): case (SCU_TASK_DONE_TASK_ABORT << SCU_COMPLETION_TL_STATUS_SHIFT): - scic_sds_request_set_status(sci_req, SCU_TASK_DONE_TASK_ABORT, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_TASK_ABORT, SCI_FAILURE_IO_TERMINATED); - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; default: @@ -1022,15 +1011,15 @@ request_aborting_state_tc_event(struct scic_sds_request *sci_req, return SCI_SUCCESS; } -static enum sci_status ssp_task_request_await_tc_event(struct scic_sds_request *sci_req, +static enum sci_status ssp_task_request_await_tc_event(struct isci_request *ireq, u32 completion_code) { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - scic_sds_request_set_status(sci_req, SCU_TASK_DONE_GOOD, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); - sci_change_state(&sci_req->sm, SCI_REQ_TASK_WAIT_TC_RESP); + sci_change_state(&ireq->sm, SCI_REQ_TASK_WAIT_TC_RESP); break; case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_ACK_NAK_TO): /* Currently, the decision is to simply allow the task request @@ -1038,12 +1027,12 @@ static enum sci_status ssp_task_request_await_tc_event(struct scic_sds_request * * There is a potential for receiving multiple task responses if * we decide to send the task IU again. */ - dev_warn(scic_to_dev(sci_req->owning_controller), + dev_warn(scic_to_dev(ireq->owning_controller), "%s: TaskRequest:0x%p CompletionCode:%x - " - "ACK/NAK timeout\n", __func__, sci_req, + "ACK/NAK timeout\n", __func__, ireq, completion_code); - sci_change_state(&sci_req->sm, SCI_REQ_TASK_WAIT_TC_RESP); + sci_change_state(&ireq->sm, SCI_REQ_TASK_WAIT_TC_RESP); break; default: /* @@ -1051,11 +1040,11 @@ static enum sci_status ssp_task_request_await_tc_event(struct scic_sds_request * * If a NAK was received, then it is up to the user to retry * the request. */ - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; } @@ -1063,7 +1052,7 @@ static enum sci_status ssp_task_request_await_tc_event(struct scic_sds_request * } static enum sci_status -smp_request_await_response_tc_event(struct scic_sds_request *sci_req, +smp_request_await_response_tc_event(struct isci_request *ireq, u32 completion_code) { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { @@ -1072,10 +1061,10 @@ smp_request_await_response_tc_event(struct scic_sds_request *sci_req, * unexpected. but if the TC has success status, we * complete the IO anyway. */ - scic_sds_request_set_status(sci_req, SCU_TASK_DONE_GOOD, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SMP_RESP_TO_ERR): @@ -1089,21 +1078,21 @@ smp_request_await_response_tc_event(struct scic_sds_request *sci_req, * these SMP_XXX_XX_ERR status. For these type of error, * we ask scic user to retry the request. */ - scic_sds_request_set_status(sci_req, SCU_TASK_DONE_SMP_RESP_TO_ERR, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_SMP_RESP_TO_ERR, SCI_FAILURE_RETRY_REQUIRED); - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; default: /* All other completion status cause the IO to be complete. If a NAK * was received, then it is up to the user to retry the request */ - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; } @@ -1111,50 +1100,50 @@ smp_request_await_response_tc_event(struct scic_sds_request *sci_req, } static enum sci_status -smp_request_await_tc_event(struct scic_sds_request *sci_req, +smp_request_await_tc_event(struct isci_request *ireq, u32 completion_code) { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - scic_sds_request_set_status(sci_req, SCU_TASK_DONE_GOOD, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; default: /* All other completion status cause the IO to be * complete. If a NAK was received, then it is up to * the user to retry the request. */ - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; } return SCI_SUCCESS; } -void scic_stp_io_request_set_ncq_tag(struct scic_sds_request *req, +void scic_stp_io_request_set_ncq_tag(struct isci_request *ireq, u16 ncq_tag) { /** * @note This could be made to return an error to the user if the user * attempts to set the NCQ tag in the wrong state. */ - req->tc->type.stp.ncq_tag = ncq_tag; + ireq->tc->type.stp.ncq_tag = ncq_tag; } static struct scu_sgl_element *pio_sgl_next(struct isci_stp_request *stp_req) { struct scu_sgl_element *sgl; struct scu_sgl_element_pair *sgl_pair; - struct scic_sds_request *sci_req = to_sci_req(stp_req); + struct isci_request *ireq = to_ireq(stp_req); struct isci_stp_pio_sgl *pio_sgl = &stp_req->sgl; - sgl_pair = to_sgl_element_pair(sci_req, pio_sgl->index); + sgl_pair = to_sgl_element_pair(ireq, pio_sgl->index); if (!sgl_pair) sgl = NULL; else if (pio_sgl->set == SCU_SGL_ELEMENT_PAIR_A) { @@ -1172,7 +1161,7 @@ static struct scu_sgl_element *pio_sgl_next(struct isci_stp_request *stp_req) } else { pio_sgl->index++; pio_sgl->set = SCU_SGL_ELEMENT_PAIR_A; - sgl_pair = to_sgl_element_pair(sci_req, pio_sgl->index); + sgl_pair = to_sgl_element_pair(ireq, pio_sgl->index); sgl = &sgl_pair->A; } } @@ -1181,15 +1170,15 @@ static struct scu_sgl_element *pio_sgl_next(struct isci_stp_request *stp_req) } static enum sci_status -stp_request_non_data_await_h2d_tc_event(struct scic_sds_request *sci_req, +stp_request_non_data_await_h2d_tc_event(struct isci_request *ireq, u32 completion_code) { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - scic_sds_request_set_status(sci_req, SCU_TASK_DONE_GOOD, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); - sci_change_state(&sci_req->sm, SCI_REQ_STP_NON_DATA_WAIT_D2H); + sci_change_state(&ireq->sm, SCI_REQ_STP_NON_DATA_WAIT_D2H); break; default: @@ -1197,11 +1186,11 @@ stp_request_non_data_await_h2d_tc_event(struct scic_sds_request *sci_req, * complete. If a NAK was received, then it is up to * the user to retry the request. */ - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; } @@ -1214,18 +1203,18 @@ stp_request_non_data_await_h2d_tc_event(struct scic_sds_request *sci_req, * parameter length. current sgl and offset is alreay stored in the IO request */ static enum sci_status scic_sds_stp_request_pio_data_out_trasmit_data_frame( - struct scic_sds_request *sci_req, + struct isci_request *ireq, u32 length) { - struct isci_stp_request *stp_req = &sci_req->stp.req; - struct scu_task_context *task_context = sci_req->tc; + struct isci_stp_request *stp_req = &ireq->stp.req; + struct scu_task_context *task_context = ireq->tc; struct scu_sgl_element_pair *sgl_pair; struct scu_sgl_element *current_sgl; /* Recycle the TC and reconstruct it for sending out DATA FIS containing * for the data from current_sgl+offset for the input length */ - sgl_pair = to_sgl_element_pair(sci_req, stp_req->sgl.index); + sgl_pair = to_sgl_element_pair(ireq, stp_req->sgl.index); if (stp_req->sgl.set == SCU_SGL_ELEMENT_PAIR_A) current_sgl = &sgl_pair->A; else @@ -1238,12 +1227,12 @@ static enum sci_status scic_sds_stp_request_pio_data_out_trasmit_data_frame( task_context->type.stp.fis_type = FIS_DATA; /* send the new TC out. */ - return scic_controller_continue_io(sci_req); + return scic_controller_continue_io(ireq); } -static enum sci_status scic_sds_stp_request_pio_data_out_transmit_data(struct scic_sds_request *sci_req) +static enum sci_status scic_sds_stp_request_pio_data_out_transmit_data(struct isci_request *ireq) { - struct isci_stp_request *stp_req = &sci_req->stp.req; + struct isci_stp_request *stp_req = &ireq->stp.req; struct scu_sgl_element_pair *sgl_pair; struct scu_sgl_element *sgl; enum sci_status status; @@ -1251,7 +1240,7 @@ static enum sci_status scic_sds_stp_request_pio_data_out_transmit_data(struct sc u32 len = 0; offset = stp_req->sgl.offset; - sgl_pair = to_sgl_element_pair(sci_req, stp_req->sgl.index); + sgl_pair = to_sgl_element_pair(ireq, stp_req->sgl.index); if (WARN_ONCE(!sgl_pair, "%s: null sgl element", __func__)) return SCI_FAILURE; @@ -1267,7 +1256,7 @@ static enum sci_status scic_sds_stp_request_pio_data_out_transmit_data(struct sc return SCI_SUCCESS; if (stp_req->pio_len >= len) { - status = scic_sds_stp_request_pio_data_out_trasmit_data_frame(sci_req, len); + status = scic_sds_stp_request_pio_data_out_trasmit_data_frame(ireq, len); if (status != SCI_SUCCESS) return status; stp_req->pio_len -= len; @@ -1276,7 +1265,7 @@ static enum sci_status scic_sds_stp_request_pio_data_out_transmit_data(struct sc sgl = pio_sgl_next(stp_req); offset = 0; } else if (stp_req->pio_len < len) { - scic_sds_stp_request_pio_data_out_trasmit_data_frame(sci_req, stp_req->pio_len); + scic_sds_stp_request_pio_data_out_trasmit_data_frame(ireq, stp_req->pio_len); /* Sgl offset will be adjusted and saved for future */ offset += stp_req->pio_len; @@ -1302,7 +1291,6 @@ static enum sci_status scic_sds_stp_request_pio_data_in_copy_data_buffer(struct isci_stp_request *stp_req, u8 *data_buf, u32 len) { - struct scic_sds_request *sci_req; struct isci_request *ireq; u8 *src_addr; int copy_len; @@ -1311,8 +1299,7 @@ scic_sds_stp_request_pio_data_in_copy_data_buffer(struct isci_stp_request *stp_r void *kaddr; int total_len = len; - sci_req = to_sci_req(stp_req); - ireq = sci_req_to_ireq(sci_req); + ireq = to_ireq(stp_req); task = isci_request_access_task(ireq); src_addr = data_buf; @@ -1373,18 +1360,18 @@ static enum sci_status scic_sds_stp_request_pio_data_in_copy_data( } static enum sci_status -stp_request_pio_await_h2d_completion_tc_event(struct scic_sds_request *sci_req, +stp_request_pio_await_h2d_completion_tc_event(struct isci_request *ireq, u32 completion_code) { enum sci_status status = SCI_SUCCESS; switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); - sci_change_state(&sci_req->sm, SCI_REQ_STP_PIO_WAIT_FRAME); + sci_change_state(&ireq->sm, SCI_REQ_STP_PIO_WAIT_FRAME); break; default: @@ -1392,11 +1379,11 @@ stp_request_pio_await_h2d_completion_tc_event(struct scic_sds_request *sci_req, * complete. If a NAK was received, then it is up to * the user to retry the request. */ - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; } @@ -1404,18 +1391,18 @@ stp_request_pio_await_h2d_completion_tc_event(struct scic_sds_request *sci_req, } static enum sci_status -pio_data_out_tx_done_tc_event(struct scic_sds_request *sci_req, +pio_data_out_tx_done_tc_event(struct isci_request *ireq, u32 completion_code) { enum sci_status status = SCI_SUCCESS; bool all_frames_transferred = false; - struct isci_stp_request *stp_req = &sci_req->stp.req; + struct isci_stp_request *stp_req = &ireq->stp.req; switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): /* Transmit data */ if (stp_req->pio_len != 0) { - status = scic_sds_stp_request_pio_data_out_transmit_data(sci_req); + status = scic_sds_stp_request_pio_data_out_transmit_data(ireq); if (status == SCI_SUCCESS) { if (stp_req->pio_len == 0) all_frames_transferred = true; @@ -1433,7 +1420,7 @@ pio_data_out_tx_done_tc_event(struct scic_sds_request *sci_req, /* * Change the state to SCI_REQ_STP_PIO_DATA_IN * and wait for PIO_SETUP fis / or D2H REg fis. */ - sci_change_state(&sci_req->sm, SCI_REQ_STP_PIO_WAIT_FRAME); + sci_change_state(&ireq->sm, SCI_REQ_STP_PIO_WAIT_FRAME); } break; @@ -1444,11 +1431,11 @@ pio_data_out_tx_done_tc_event(struct scic_sds_request *sci_req, * the request. */ scic_sds_request_set_status( - sci_req, + ireq, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; } @@ -1456,18 +1443,18 @@ pio_data_out_tx_done_tc_event(struct scic_sds_request *sci_req, } static void scic_sds_stp_request_udma_complete_request( - struct scic_sds_request *request, + struct isci_request *ireq, u32 scu_status, enum sci_status sci_status) { - scic_sds_request_set_status(request, scu_status, sci_status); - sci_change_state(&request->sm, SCI_REQ_COMPLETED); + scic_sds_request_set_status(ireq, scu_status, sci_status); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); } -static enum sci_status scic_sds_stp_request_udma_general_frame_handler(struct scic_sds_request *sci_req, +static enum sci_status scic_sds_stp_request_udma_general_frame_handler(struct isci_request *ireq, u32 frame_index) { - struct scic_sds_controller *scic = sci_req->owning_controller; + struct scic_sds_controller *scic = ireq->owning_controller; struct dev_to_host_fis *frame_header; enum sci_status status; u32 *frame_buffer; @@ -1482,7 +1469,7 @@ static enum sci_status scic_sds_stp_request_udma_general_frame_handler(struct sc frame_index, (void **)&frame_buffer); - scic_sds_controller_copy_sata_response(&sci_req->stp.rsp, + scic_sds_controller_copy_sata_response(&ireq->stp.rsp, frame_header, frame_buffer); } @@ -1493,16 +1480,16 @@ static enum sci_status scic_sds_stp_request_udma_general_frame_handler(struct sc } enum sci_status -scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, +scic_sds_io_request_frame_handler(struct isci_request *ireq, u32 frame_index) { - struct scic_sds_controller *scic = sci_req->owning_controller; - struct isci_stp_request *stp_req = &sci_req->stp.req; + struct scic_sds_controller *scic = ireq->owning_controller; + struct isci_stp_request *stp_req = &ireq->stp.req; enum sci_base_request_states state; enum sci_status status; ssize_t word_cnt; - state = sci_req->sm.current_state_id; + state = ireq->sm.current_state_id; switch (state) { case SCI_REQ_STARTED: { struct ssp_frame_hdr ssp_hdr; @@ -1523,24 +1510,24 @@ scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, frame_index, (void **)&resp_iu); - sci_swab32_cpy(&sci_req->ssp.rsp, resp_iu, word_cnt); + sci_swab32_cpy(&ireq->ssp.rsp, resp_iu, word_cnt); - resp_iu = &sci_req->ssp.rsp; + resp_iu = &ireq->ssp.rsp; if (resp_iu->datapres == 0x01 || resp_iu->datapres == 0x02) { - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); } else - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); } else { /* not a response frame, why did it get forwarded? */ dev_err(scic_to_dev(scic), "%s: SCIC IO Request 0x%p received unexpected " - "frame %d type 0x%02x\n", __func__, sci_req, + "frame %d type 0x%02x\n", __func__, ireq, frame_index, ssp_hdr.frame_type); } @@ -1554,13 +1541,13 @@ scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, } case SCI_REQ_TASK_WAIT_TC_RESP: - scic_sds_io_request_copy_response(sci_req); - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + scic_sds_io_request_copy_response(ireq); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); scic_sds_controller_release_frame(scic,frame_index); return SCI_SUCCESS; case SCI_REQ_SMP_WAIT_RESP: { - struct smp_resp *rsp_hdr = &sci_req->smp.rsp; + struct smp_resp *rsp_hdr = &ireq->smp.rsp; void *frame_header; scic_sds_unsolicited_frame_control_get_header(&scic->uf_control, @@ -1584,10 +1571,10 @@ scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, sci_swab32_cpy(((u8 *) rsp_hdr) + SMP_RESP_HDR_SZ, smp_resp, word_cnt); - scic_sds_request_set_status(sci_req, SCU_TASK_DONE_GOOD, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); - sci_change_state(&sci_req->sm, SCI_REQ_SMP_WAIT_TC_COMP); + sci_change_state(&ireq->sm, SCI_REQ_SMP_WAIT_TC_COMP); } else { /* * This was not a response frame why did it get @@ -1597,15 +1584,15 @@ scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, "%s: SCIC SMP Request 0x%p received unexpected " "frame %d type 0x%02x\n", __func__, - sci_req, + ireq, frame_index, rsp_hdr->frame_type); - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_SMP_FRM_TYPE_ERR, SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); } scic_sds_controller_release_frame(scic, frame_index); @@ -1614,18 +1601,18 @@ scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, } case SCI_REQ_STP_UDMA_WAIT_TC_COMP: - return scic_sds_stp_request_udma_general_frame_handler(sci_req, + return scic_sds_stp_request_udma_general_frame_handler(ireq, frame_index); case SCI_REQ_STP_UDMA_WAIT_D2H: /* Use the general frame handler to copy the resposne data */ - status = scic_sds_stp_request_udma_general_frame_handler(sci_req, + status = scic_sds_stp_request_udma_general_frame_handler(ireq, frame_index); if (status != SCI_SUCCESS) return status; - scic_sds_stp_request_udma_complete_request(sci_req, + scic_sds_stp_request_udma_complete_request(ireq, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); @@ -1657,12 +1644,12 @@ scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, frame_index, (void **)&frame_buffer); - scic_sds_controller_copy_sata_response(&sci_req->stp.rsp, + scic_sds_controller_copy_sata_response(&ireq->stp.rsp, frame_header, frame_buffer); /* The command has completed with error */ - scic_sds_request_set_status(sci_req, SCU_TASK_DONE_CHECK_RESPONSE, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); break; @@ -1672,12 +1659,12 @@ scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, "violation occurred\n", __func__, stp_req, frame_index); - scic_sds_request_set_status(sci_req, SCU_TASK_DONE_UNEXP_FIS, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_UNEXP_FIS, SCI_FAILURE_PROTOCOL_VIOLATION); break; } - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); /* Frame has been decoded return it to the controller */ scic_sds_controller_release_frame(scic, frame_index); @@ -1686,7 +1673,6 @@ scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, } case SCI_REQ_STP_PIO_WAIT_FRAME: { - struct isci_request *ireq = sci_req_to_ireq(sci_req); struct sas_task *task = isci_request_access_task(ireq); struct dev_to_host_fis *frame_header; u32 *frame_buffer; @@ -1722,28 +1708,28 @@ scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, /* status: 4th byte in the 3rd dword */ stp_req->status = (frame_buffer[2] >> 24) & 0xff; - scic_sds_controller_copy_sata_response(&sci_req->stp.rsp, + scic_sds_controller_copy_sata_response(&ireq->stp.rsp, frame_header, frame_buffer); - sci_req->stp.rsp.status = stp_req->status; + ireq->stp.rsp.status = stp_req->status; /* The next state is dependent on whether the * request was PIO Data-in or Data out */ if (task->data_dir == DMA_FROM_DEVICE) { - sci_change_state(&sci_req->sm, SCI_REQ_STP_PIO_DATA_IN); + sci_change_state(&ireq->sm, SCI_REQ_STP_PIO_DATA_IN); } else if (task->data_dir == DMA_TO_DEVICE) { /* Transmit data */ - status = scic_sds_stp_request_pio_data_out_transmit_data(sci_req); + status = scic_sds_stp_request_pio_data_out_transmit_data(ireq); if (status != SCI_SUCCESS) break; - sci_change_state(&sci_req->sm, SCI_REQ_STP_PIO_DATA_OUT); + sci_change_state(&ireq->sm, SCI_REQ_STP_PIO_DATA_OUT); } break; case FIS_SETDEVBITS: - sci_change_state(&sci_req->sm, SCI_REQ_STP_PIO_WAIT_FRAME); + sci_change_state(&ireq->sm, SCI_REQ_STP_PIO_WAIT_FRAME); break; case FIS_REGD2H: @@ -1767,15 +1753,15 @@ scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, frame_index, (void **)&frame_buffer); - scic_sds_controller_copy_sata_response(&sci_req->stp.req, + scic_sds_controller_copy_sata_response(&ireq->stp.req, frame_header, frame_buffer); - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; default: @@ -1818,11 +1804,11 @@ scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, frame_index, frame_header->fis_type); - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_FAILURE_IO_REQUIRES_SCSI_ABORT); - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); /* Frame is decoded return it to the controller */ scic_sds_controller_release_frame(scic, frame_index); @@ -1830,7 +1816,7 @@ scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, } if (stp_req->sgl.index < 0) { - sci_req->saved_rx_frame_index = frame_index; + ireq->saved_rx_frame_index = frame_index; stp_req->pio_len = 0; } else { scic_sds_unsolicited_frame_control_get_buffer(&scic->uf_control, @@ -1851,13 +1837,13 @@ scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, return status; if ((stp_req->status & ATA_BUSY) == 0) { - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); } else { - sci_change_state(&sci_req->sm, SCI_REQ_STP_PIO_WAIT_FRAME); + sci_change_state(&ireq->sm, SCI_REQ_STP_PIO_WAIT_FRAME); } return status; } @@ -1886,12 +1872,12 @@ scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, frame_index, (void **)&frame_buffer); - scic_sds_controller_copy_sata_response(&sci_req->stp.rsp, + scic_sds_controller_copy_sata_response(&ireq->stp.rsp, frame_header, frame_buffer); /* The command has completed with error */ - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); break; @@ -1904,13 +1890,13 @@ scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, stp_req, frame_index); - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_UNEXP_FIS, SCI_FAILURE_PROTOCOL_VIOLATION); break; } - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); /* Frame has been decoded return it to the controller */ scic_sds_controller_release_frame(scic, frame_index); @@ -1938,14 +1924,14 @@ scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, } } -static enum sci_status stp_request_udma_await_tc_event(struct scic_sds_request *sci_req, +static enum sci_status stp_request_udma_await_tc_event(struct isci_request *ireq, u32 completion_code) { enum sci_status status = SCI_SUCCESS; switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - scic_sds_stp_request_udma_complete_request(sci_req, + scic_sds_stp_request_udma_complete_request(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); break; @@ -1955,11 +1941,11 @@ static enum sci_status stp_request_udma_await_tc_event(struct scic_sds_request * * Register FIS was received before we got the TC * completion. */ - if (sci_req->stp.rsp.fis_type == FIS_REGD2H) { - scic_sds_remote_device_suspend(sci_req->target_device, + if (ireq->stp.rsp.fis_type == FIS_REGD2H) { + scic_sds_remote_device_suspend(ireq->target_device, SCU_EVENT_SPECIFIC(SCU_NORMALIZE_COMPLETION_STATUS(completion_code))); - scic_sds_stp_request_udma_complete_request(sci_req, + scic_sds_stp_request_udma_complete_request(ireq, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); } else { @@ -1968,7 +1954,7 @@ static enum sci_status stp_request_udma_await_tc_event(struct scic_sds_request * * the device so we must change state to wait * for it */ - sci_change_state(&sci_req->sm, SCI_REQ_STP_UDMA_WAIT_D2H); + sci_change_state(&ireq->sm, SCI_REQ_STP_UDMA_WAIT_D2H); } break; @@ -1983,12 +1969,12 @@ static enum sci_status stp_request_udma_await_tc_event(struct scic_sds_request * case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_LL_R_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_CMD_LL_R_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_CRC_ERR): - scic_sds_remote_device_suspend(sci_req->target_device, + scic_sds_remote_device_suspend(ireq->target_device, SCU_EVENT_SPECIFIC(SCU_NORMALIZE_COMPLETION_STATUS(completion_code))); /* Fall through to the default case */ default: /* All other completion status cause the IO to be complete. */ - scic_sds_stp_request_udma_complete_request(sci_req, + scic_sds_stp_request_udma_complete_request(ireq, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); break; @@ -1998,15 +1984,15 @@ static enum sci_status stp_request_udma_await_tc_event(struct scic_sds_request * } static enum sci_status -stp_request_soft_reset_await_h2d_asserted_tc_event(struct scic_sds_request *sci_req, +stp_request_soft_reset_await_h2d_asserted_tc_event(struct isci_request *ireq, u32 completion_code) { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - scic_sds_request_set_status(sci_req, SCU_TASK_DONE_GOOD, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); - sci_change_state(&sci_req->sm, SCI_REQ_STP_SOFT_RESET_WAIT_H2D_DIAG); + sci_change_state(&ireq->sm, SCI_REQ_STP_SOFT_RESET_WAIT_H2D_DIAG); break; default: @@ -2015,11 +2001,11 @@ stp_request_soft_reset_await_h2d_asserted_tc_event(struct scic_sds_request *sci_ * If a NAK was received, then it is up to the user to retry * the request. */ - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; } @@ -2027,15 +2013,15 @@ stp_request_soft_reset_await_h2d_asserted_tc_event(struct scic_sds_request *sci_ } static enum sci_status -stp_request_soft_reset_await_h2d_diagnostic_tc_event(struct scic_sds_request *sci_req, +stp_request_soft_reset_await_h2d_diagnostic_tc_event(struct isci_request *ireq, u32 completion_code) { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - scic_sds_request_set_status(sci_req, SCU_TASK_DONE_GOOD, + scic_sds_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); - sci_change_state(&sci_req->sm, SCI_REQ_STP_SOFT_RESET_WAIT_D2H); + sci_change_state(&ireq->sm, SCI_REQ_STP_SOFT_RESET_WAIT_D2H); break; default: @@ -2043,11 +2029,11 @@ stp_request_soft_reset_await_h2d_diagnostic_tc_event(struct scic_sds_request *sc * a NAK was received, then it is up to the user to retry the * request. */ - scic_sds_request_set_status(sci_req, + scic_sds_request_set_status(ireq, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_change_state(&sci_req->sm, SCI_REQ_COMPLETED); + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; } @@ -2055,54 +2041,54 @@ stp_request_soft_reset_await_h2d_diagnostic_tc_event(struct scic_sds_request *sc } enum sci_status -scic_sds_io_request_tc_completion(struct scic_sds_request *sci_req, +scic_sds_io_request_tc_completion(struct isci_request *ireq, u32 completion_code) { enum sci_base_request_states state; - struct scic_sds_controller *scic = sci_req->owning_controller; + struct scic_sds_controller *scic = ireq->owning_controller; - state = sci_req->sm.current_state_id; + state = ireq->sm.current_state_id; switch (state) { case SCI_REQ_STARTED: - return request_started_state_tc_event(sci_req, completion_code); + return request_started_state_tc_event(ireq, completion_code); case SCI_REQ_TASK_WAIT_TC_COMP: - return ssp_task_request_await_tc_event(sci_req, + return ssp_task_request_await_tc_event(ireq, completion_code); case SCI_REQ_SMP_WAIT_RESP: - return smp_request_await_response_tc_event(sci_req, + return smp_request_await_response_tc_event(ireq, completion_code); case SCI_REQ_SMP_WAIT_TC_COMP: - return smp_request_await_tc_event(sci_req, completion_code); + return smp_request_await_tc_event(ireq, completion_code); case SCI_REQ_STP_UDMA_WAIT_TC_COMP: - return stp_request_udma_await_tc_event(sci_req, + return stp_request_udma_await_tc_event(ireq, completion_code); case SCI_REQ_STP_NON_DATA_WAIT_H2D: - return stp_request_non_data_await_h2d_tc_event(sci_req, + return stp_request_non_data_await_h2d_tc_event(ireq, completion_code); case SCI_REQ_STP_PIO_WAIT_H2D: - return stp_request_pio_await_h2d_completion_tc_event(sci_req, + return stp_request_pio_await_h2d_completion_tc_event(ireq, completion_code); case SCI_REQ_STP_PIO_DATA_OUT: - return pio_data_out_tx_done_tc_event(sci_req, completion_code); + return pio_data_out_tx_done_tc_event(ireq, completion_code); case SCI_REQ_STP_SOFT_RESET_WAIT_H2D_ASSERTED: - return stp_request_soft_reset_await_h2d_asserted_tc_event(sci_req, + return stp_request_soft_reset_await_h2d_asserted_tc_event(ireq, completion_code); case SCI_REQ_STP_SOFT_RESET_WAIT_H2D_DIAG: - return stp_request_soft_reset_await_h2d_diagnostic_tc_event(sci_req, + return stp_request_soft_reset_await_h2d_diagnostic_tc_event(ireq, completion_code); case SCI_REQ_ABORTING: - return request_aborting_state_tc_event(sci_req, + return request_aborting_state_tc_event(ireq, completion_code); default: @@ -2201,7 +2187,7 @@ static void isci_request_handle_controller_specific_errors( { unsigned int cstatus; - cstatus = request->sci.scu_status; + cstatus = request->scu_status; dev_dbg(&request->isci_host->pdev->dev, "%s: %p SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR " @@ -2640,13 +2626,13 @@ static void isci_request_io_request_complete(struct isci_host *isci_host, task); if (sas_protocol_ata(task->task_proto)) { - resp_buf = &request->sci.stp.rsp; + resp_buf = &request->stp.rsp; isci_request_process_stp_response(task, resp_buf); } else if (SAS_PROTOCOL_SSP == task->task_proto) { /* crack the iu response buffer. */ - resp_iu = &request->sci.ssp.rsp; + resp_iu = &request->ssp.rsp; isci_request_process_response_iu(task, resp_iu, &isci_host->pdev->dev); @@ -2677,7 +2663,7 @@ static void isci_request_io_request_complete(struct isci_host *isci_host, set_bit(IREQ_COMPLETE_IN_TARGET, &request->flags); if (task->task_proto == SAS_PROTOCOL_SMP) { - void *rsp = &request->sci.smp.rsp; + void *rsp = &request->smp.rsp; dev_dbg(&isci_host->pdev->dev, "%s: SMP protocol completion\n", @@ -2693,7 +2679,7 @@ static void isci_request_io_request_complete(struct isci_host *isci_host, * There is a possibility that less data than * the maximum was transferred. */ - u32 transferred_length = sci_req_tx_bytes(&request->sci); + u32 transferred_length = sci_req_tx_bytes(request); task->task_status.residual = task->total_xfer_len - transferred_length; @@ -2851,8 +2837,8 @@ static void isci_request_io_request_complete(struct isci_host *isci_host, /* complete the io request to the core. */ scic_controller_complete_io(&isci_host->sci, - request->sci.target_device, - &request->sci); + request->target_device, + request); isci_put_device(idev); /* set terminated handle so it cannot be completed or @@ -2864,9 +2850,8 @@ static void isci_request_io_request_complete(struct isci_host *isci_host, static void scic_sds_request_started_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), sm); - struct isci_request *ireq = sci_req_to_ireq(sci_req); - struct domain_device *dev = sci_dev_to_domain(sci_req->target_device); + struct isci_request *ireq = container_of(sm, typeof(*ireq), sm); + struct domain_device *dev = sci_dev_to_domain(ireq->target_device); struct sas_task *task; /* XXX as hch said always creating an internal sas_task for tmf @@ -2902,66 +2887,65 @@ static void scic_sds_request_started_state_enter(struct sci_base_state_machine * static void scic_sds_request_completed_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), sm); - struct scic_sds_controller *scic = sci_req->owning_controller; + struct isci_request *ireq = container_of(sm, typeof(*ireq), sm); + struct scic_sds_controller *scic = ireq->owning_controller; struct isci_host *ihost = scic_to_ihost(scic); - struct isci_request *ireq = sci_req_to_ireq(sci_req); /* Tell the SCI_USER that the IO request is complete */ if (!test_bit(IREQ_TMF, &ireq->flags)) isci_request_io_request_complete(ihost, ireq, - sci_req->sci_status); + ireq->sci_status); else - isci_task_request_complete(ihost, ireq, sci_req->sci_status); + isci_task_request_complete(ihost, ireq, ireq->sci_status); } static void scic_sds_request_aborting_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), sm); + struct isci_request *ireq = container_of(sm, typeof(*ireq), sm); /* Setting the abort bit in the Task Context is required by the silicon. */ - sci_req->tc->abort = 1; + ireq->tc->abort = 1; } static void scic_sds_stp_request_started_non_data_await_h2d_completion_enter(struct sci_base_state_machine *sm) { - struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), sm); + struct isci_request *ireq = container_of(sm, typeof(*ireq), sm); - scic_sds_remote_device_set_working_request(sci_req->target_device, - sci_req); + scic_sds_remote_device_set_working_request(ireq->target_device, + ireq); } static void scic_sds_stp_request_started_pio_await_h2d_completion_enter(struct sci_base_state_machine *sm) { - struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), sm); + struct isci_request *ireq = container_of(sm, typeof(*ireq), sm); - scic_sds_remote_device_set_working_request(sci_req->target_device, - sci_req); + scic_sds_remote_device_set_working_request(ireq->target_device, + ireq); } static void scic_sds_stp_request_started_soft_reset_await_h2d_asserted_completion_enter(struct sci_base_state_machine *sm) { - struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), sm); + struct isci_request *ireq = container_of(sm, typeof(*ireq), sm); - scic_sds_remote_device_set_working_request(sci_req->target_device, - sci_req); + scic_sds_remote_device_set_working_request(ireq->target_device, + ireq); } static void scic_sds_stp_request_started_soft_reset_await_h2d_diagnostic_completion_enter(struct sci_base_state_machine *sm) { - struct scic_sds_request *sci_req = container_of(sm, typeof(*sci_req), sm); - struct scu_task_context *tc = sci_req->tc; + struct isci_request *ireq = container_of(sm, typeof(*ireq), sm); + struct scu_task_context *tc = ireq->tc; struct host_to_dev_fis *h2d_fis; enum sci_status status; /* Clear the SRST bit */ - h2d_fis = &sci_req->stp.cmd; + h2d_fis = &ireq->stp.cmd; h2d_fis->control = 0; /* Clear the TC control bit */ tc->control_frame = 0; - status = scic_controller_continue_io(sci_req); + status = scic_controller_continue_io(ireq); WARN_ONCE(status != SCI_SUCCESS, "isci: continue io failure\n"); } @@ -3006,29 +2990,29 @@ static const struct sci_base_state scic_sds_request_state_table[] = { static void scic_sds_general_request_construct(struct scic_sds_controller *scic, struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req) + struct isci_request *ireq) { - sci_init_sm(&sci_req->sm, scic_sds_request_state_table, SCI_REQ_INIT); + sci_init_sm(&ireq->sm, scic_sds_request_state_table, SCI_REQ_INIT); - sci_req->target_device = sci_dev; - sci_req->protocol = SCIC_NO_PROTOCOL; - sci_req->saved_rx_frame_index = SCU_INVALID_FRAME_INDEX; + ireq->target_device = sci_dev; + ireq->protocol = SCIC_NO_PROTOCOL; + ireq->saved_rx_frame_index = SCU_INVALID_FRAME_INDEX; - sci_req->sci_status = SCI_SUCCESS; - sci_req->scu_status = 0; - sci_req->post_context = 0xFFFFFFFF; + ireq->sci_status = SCI_SUCCESS; + ireq->scu_status = 0; + ireq->post_context = 0xFFFFFFFF; } static enum sci_status scic_io_request_construct(struct scic_sds_controller *scic, struct scic_sds_remote_device *sci_dev, - struct scic_sds_request *sci_req) + struct isci_request *ireq) { struct domain_device *dev = sci_dev_to_domain(sci_dev); enum sci_status status = SCI_SUCCESS; /* Build the common part of the request */ - scic_sds_general_request_construct(scic, sci_dev, sci_req); + scic_sds_general_request_construct(scic, sci_dev, ireq); if (sci_dev->rnc.remote_node_index == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) return SCI_FAILURE_INVALID_REMOTE_DEVICE; @@ -3036,31 +3020,31 @@ scic_io_request_construct(struct scic_sds_controller *scic, if (dev->dev_type == SAS_END_DEV) /* pass */; else if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) - memset(&sci_req->stp.cmd, 0, sizeof(sci_req->stp.cmd)); + memset(&ireq->stp.cmd, 0, sizeof(ireq->stp.cmd)); else if (dev_is_expander(dev)) /* pass */; else return SCI_FAILURE_UNSUPPORTED_PROTOCOL; - memset(sci_req->tc, 0, offsetof(struct scu_task_context, sgl_pair_ab)); + memset(ireq->tc, 0, offsetof(struct scu_task_context, sgl_pair_ab)); return status; } enum sci_status scic_task_request_construct(struct scic_sds_controller *scic, struct scic_sds_remote_device *sci_dev, - u16 io_tag, struct scic_sds_request *sci_req) + u16 io_tag, struct isci_request *ireq) { struct domain_device *dev = sci_dev_to_domain(sci_dev); enum sci_status status = SCI_SUCCESS; /* Build the common part of the request */ - scic_sds_general_request_construct(scic, sci_dev, sci_req); + scic_sds_general_request_construct(scic, sci_dev, ireq); if (dev->dev_type == SAS_END_DEV || dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) { - set_bit(IREQ_TMF, &sci_req_to_ireq(sci_req)->flags); - memset(sci_req->tc, 0, sizeof(struct scu_task_context)); + set_bit(IREQ_TMF, &ireq->flags); + memset(ireq->tc, 0, sizeof(struct scu_task_context)); } else status = SCI_FAILURE_UNSUPPORTED_PROTOCOL; @@ -3076,7 +3060,7 @@ static enum sci_status isci_request_ssp_request_construct( "%s: request = %p\n", __func__, request); - status = scic_io_request_construct_basic_ssp(&request->sci); + status = scic_io_request_construct_basic_ssp(request); return status; } @@ -3097,7 +3081,7 @@ static enum sci_status isci_request_stp_request_construct( */ register_fis = isci_sata_task_to_fis_copy(task); - status = scic_io_request_construct_basic_sata(&request->sci); + status = scic_io_request_construct_basic_sata(request); /* Set the ncq tag in the fis, from the queue * command in the task. @@ -3115,7 +3099,7 @@ static enum sci_status isci_request_stp_request_construct( static enum sci_status scic_io_request_construct_smp(struct device *dev, - struct scic_sds_request *sci_req, + struct isci_request *ireq, struct sas_task *task) { struct scatterlist *sg = &task->smp_task.smp_req; @@ -3158,14 +3142,14 @@ scic_io_request_construct_smp(struct device *dev, if (!dma_map_sg(dev, sg, 1, DMA_TO_DEVICE)) return SCI_FAILURE; - sci_req->protocol = SCIC_SMP_PROTOCOL; + ireq->protocol = SCIC_SMP_PROTOCOL; /* byte swap the smp request. */ - task_context = sci_req->tc; + task_context = ireq->tc; - sci_dev = scic_sds_request_get_device(sci_req); - sci_port = scic_sds_request_get_port(sci_req); + sci_dev = scic_sds_request_get_device(ireq); + sci_port = scic_sds_request_get_port(ireq); /* * Fill in the TC with the its required data @@ -3217,12 +3201,12 @@ scic_io_request_construct_smp(struct device *dev, */ task_context->task_phase = 0; - sci_req->post_context = (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | + ireq->post_context = (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | (scic_sds_controller_get_protocol_engine_group(scic) << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | (scic_sds_port_get_index(sci_port) << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | - ISCI_TAG_TCI(sci_req->io_tag)); + ISCI_TAG_TCI(ireq->io_tag)); /* * Copy the physical address for the command buffer to the SCU Task * Context command buffer should not contain command header. @@ -3234,7 +3218,7 @@ scic_io_request_construct_smp(struct device *dev, task_context->response_iu_upper = 0; task_context->response_iu_lower = 0; - sci_change_state(&sci_req->sm, SCI_REQ_CONSTRUCTED); + sci_change_state(&ireq->sm, SCI_REQ_CONSTRUCTED); return SCI_SUCCESS; } @@ -3250,10 +3234,9 @@ static enum sci_status isci_smp_request_build(struct isci_request *ireq) { struct sas_task *task = isci_request_access_task(ireq); struct device *dev = &ireq->isci_host->pdev->dev; - struct scic_sds_request *sci_req = &ireq->sci; enum sci_status status = SCI_FAILURE; - status = scic_io_request_construct_smp(dev, sci_req, task); + status = scic_io_request_construct_smp(dev, ireq, task); if (status != SCI_SUCCESS) dev_warn(&ireq->isci_host->pdev->dev, "%s: failed with status = %d\n", @@ -3309,7 +3292,7 @@ static enum sci_status isci_io_request_build(struct isci_host *isci_host, } status = scic_io_request_construct(&isci_host->sci, sci_device, - &request->sci); + request); if (status != SCI_SUCCESS) { dev_warn(&isci_host->pdev->dev, @@ -3344,7 +3327,7 @@ static struct isci_request *isci_request_from_tag(struct isci_host *ihost, u16 t struct isci_request *ireq; ireq = ihost->reqs[ISCI_TAG_TCI(tag)]; - ireq->sci.io_tag = tag; + ireq->io_tag = tag; ireq->io_request_completion = NULL; ireq->flags = 0; ireq->num_sg_entries = 0; @@ -3416,14 +3399,14 @@ int isci_request_execute(struct isci_host *ihost, struct isci_remote_device *ide */ status = scic_controller_start_task(&ihost->sci, &idev->sci, - &ireq->sci); + ireq); } else { status = SCI_FAILURE; } } else { /* send the request, let the core assign the IO TAG. */ status = scic_controller_start_io(&ihost->sci, &idev->sci, - &ireq->sci); + ireq); } if (status != SCI_SUCCESS && @@ -3446,8 +3429,6 @@ int isci_request_execute(struct isci_host *ihost, struct isci_remote_device *ide list_add(&ireq->dev_node, &idev->reqs_in_process); if (status == SCI_SUCCESS) { - /* Save the tag for possible task mgmt later. */ - ireq->io_tag = ireq->sci.io_tag; isci_request_change_state(ireq, started); } else { /* The request did not really start in the diff --git a/drivers/scsi/isci/request.h b/drivers/scsi/isci/request.h index 7fd98531d1f..68d8a27357e 100644 --- a/drivers/scsi/isci/request.h +++ b/drivers/scsi/isci/request.h @@ -93,7 +93,7 @@ enum sci_request_protocol { * isci_stp_request - extra request infrastructure to handle pio/atapi protocol * @pio_len - number of bytes requested at PIO setup * @status - pio setup ending status value to tell us if we need - * to wait for another fis or if the transfer is complete. Upon + * to wait for another fis or if the transfer is complete. Upon * receipt of a d2h fis this will be the status field of that fis. * @sgl - track pio transfer progress as we iterate through the sgl * @device_cdb_len - atapi device advertises it's transfer constraints at setup @@ -110,69 +110,55 @@ struct isci_stp_request { u32 device_cdb_len; }; -struct scic_sds_request { - /* - * This field contains the information for the base request state - * machine. +struct isci_request { + enum isci_request_status status; + #define IREQ_COMPLETE_IN_TARGET 0 + #define IREQ_TERMINATED 1 + #define IREQ_TMF 2 + #define IREQ_ACTIVE 3 + unsigned long flags; + /* XXX kill ttype and ttype_ptr, allocate full sas_task */ + enum task_type ttype; + union ttype_ptr_union { + struct sas_task *io_task_ptr; /* When ttype==io_task */ + struct isci_tmf *tmf_task_ptr; /* When ttype==tmf_task */ + } ttype_ptr; + struct isci_host *isci_host; + /* For use in the requests_to_{complete|abort} lists: */ + struct list_head completed_node; + /* For use in the reqs_in_process list: */ + struct list_head dev_node; + spinlock_t state_lock; + dma_addr_t request_daddr; + dma_addr_t zero_scatter_daddr; + unsigned int num_sg_entries; + /* Note: "io_request_completion" is completed in two different ways + * depending on whether this is a TMF or regular request. + * - TMF requests are completed in the thread that started them; + * - regular requests are completed in the request completion callback + * function. + * This difference in operation allows the aborter of a TMF request + * to be sure that once the TMF request completes, the I/O that the + * TMF was aborting is guaranteed to have completed. + * + * XXX kill io_request_completion */ + struct completion *io_request_completion; struct sci_base_state_machine sm; - - /* - * This field simply points to the controller to which this IO request - * is associated. - */ struct scic_sds_controller *owning_controller; - - /* - * This field simply points to the remote device to which this IO - * request is associated. - */ struct scic_sds_remote_device *target_device; - - /* - * This field indicates the IO tag for this request. The IO tag is - * comprised of the task_index and a sequence count. The sequence count - * is utilized to help identify tasks from one life to another. - */ u16 io_tag; - - /* - * This field specifies the protocol being utilized for this - * IO request. - */ enum sci_request_protocol protocol; - - /* - * This field indicates the completion status taken from the SCUs - * completion code. It indicates the completion result for the SCU - * hardware. - */ - u32 scu_status; - - /* - * This field indicates the completion status returned to the SCI user. - * It indicates the users view of the io request completion. - */ - u32 sci_status; - - /* - * This field contains the value to be utilized when posting - * (e.g. Post_TC, * Post_TC_Abort) this request to the silicon. - */ + u32 scu_status; /* hardware result */ + u32 sci_status; /* upper layer disposition */ u32 post_context; - struct scu_task_context *tc; - /* could be larger with sg chaining */ #define SCU_SGL_SIZE ((SCI_MAX_SCATTER_GATHER_ELEMENTS + 1) / 2) struct scu_sgl_element_pair sg_table[SCU_SGL_SIZE] __attribute__ ((aligned(32))); - - /* - * This field is a pointer to the stored rx frame data. It is used in + /* This field is a pointer to the stored rx frame data. It is used in * STP internal requests and SMP response frames. If this field is * non-NULL the saved frame must be released on IO request completion. - * - * @todo In the future do we want to keep a list of RX frame buffers? */ u32 saved_rx_frame_index; @@ -187,11 +173,9 @@ struct scic_sds_request { u8 rsp_buf[SSP_RESP_IU_MAX_SIZE]; }; } ssp; - struct { struct smp_resp rsp; } smp; - struct { struct isci_stp_request req; struct host_to_dev_fis cmd; @@ -200,56 +184,11 @@ struct scic_sds_request { }; }; -static inline struct scic_sds_request *to_sci_req(struct isci_stp_request *stp_req) -{ - struct scic_sds_request *sci_req; - - sci_req = container_of(stp_req, typeof(*sci_req), stp.req); - return sci_req; -} - -struct isci_request { - enum isci_request_status status; - enum task_type ttype; - unsigned short io_tag; - #define IREQ_COMPLETE_IN_TARGET 0 - #define IREQ_TERMINATED 1 - #define IREQ_TMF 2 - #define IREQ_ACTIVE 3 - unsigned long flags; - - union ttype_ptr_union { - struct sas_task *io_task_ptr; /* When ttype==io_task */ - struct isci_tmf *tmf_task_ptr; /* When ttype==tmf_task */ - } ttype_ptr; - struct isci_host *isci_host; - /* For use in the requests_to_{complete|abort} lists: */ - struct list_head completed_node; - /* For use in the reqs_in_process list: */ - struct list_head dev_node; - spinlock_t state_lock; - dma_addr_t request_daddr; - dma_addr_t zero_scatter_daddr; - - unsigned int num_sg_entries; /* returned by pci_alloc_sg */ - - /** Note: "io_request_completion" is completed in two different ways - * depending on whether this is a TMF or regular request. - * - TMF requests are completed in the thread that started them; - * - regular requests are completed in the request completion callback - * function. - * This difference in operation allows the aborter of a TMF request - * to be sure that once the TMF request completes, the I/O that the - * TMF was aborting is guaranteed to have completed. - */ - struct completion *io_request_completion; - struct scic_sds_request sci; -}; - -static inline struct isci_request *sci_req_to_ireq(struct scic_sds_request *sci_req) +static inline struct isci_request *to_ireq(struct isci_stp_request *stp_req) { - struct isci_request *ireq = container_of(sci_req, typeof(*ireq), sci); + struct isci_request *ireq; + ireq = container_of(stp_req, typeof(*ireq), stp.req); return ireq; } @@ -366,32 +305,32 @@ enum sci_base_request_states { * * This macro will return the controller for this io request object */ -#define scic_sds_request_get_controller(sci_req) \ - ((sci_req)->owning_controller) +#define scic_sds_request_get_controller(ireq) \ + ((ireq)->owning_controller) /** * scic_sds_request_get_device() - * * This macro will return the device for this io request object */ -#define scic_sds_request_get_device(sci_req) \ - ((sci_req)->target_device) +#define scic_sds_request_get_device(ireq) \ + ((ireq)->target_device) /** * scic_sds_request_get_port() - * * This macro will return the port for this io request object */ -#define scic_sds_request_get_port(sci_req) \ - scic_sds_remote_device_get_port(scic_sds_request_get_device(sci_req)) +#define scic_sds_request_get_port(ireq) \ + scic_sds_remote_device_get_port(scic_sds_request_get_device(ireq)) /** * scic_sds_request_get_post_context() - * * This macro returns the constructed post context result for the io request. */ -#define scic_sds_request_get_post_context(sci_req) \ - ((sci_req)->post_context) +#define scic_sds_request_get_post_context(ireq) \ + ((ireq)->post_context) /** * scic_sds_request_get_task_context() - @@ -413,26 +352,25 @@ enum sci_base_request_states { (request)->sci_status = (sci_status_code); \ } -enum sci_status scic_sds_request_start(struct scic_sds_request *sci_req); -enum sci_status scic_sds_io_request_terminate(struct scic_sds_request *sci_req); +enum sci_status scic_sds_request_start(struct isci_request *ireq); +enum sci_status scic_sds_io_request_terminate(struct isci_request *ireq); enum sci_status -scic_sds_io_request_event_handler(struct scic_sds_request *sci_req, +scic_sds_io_request_event_handler(struct isci_request *ireq, u32 event_code); enum sci_status -scic_sds_io_request_frame_handler(struct scic_sds_request *sci_req, +scic_sds_io_request_frame_handler(struct isci_request *ireq, u32 frame_index); enum sci_status -scic_sds_task_request_terminate(struct scic_sds_request *sci_req); +scic_sds_task_request_terminate(struct isci_request *ireq); extern enum sci_status -scic_sds_request_complete(struct scic_sds_request *sci_req); +scic_sds_request_complete(struct isci_request *ireq); extern enum sci_status -scic_sds_io_request_tc_completion(struct scic_sds_request *sci_req, u32 code); +scic_sds_io_request_tc_completion(struct isci_request *ireq, u32 code); /* XXX open code in caller */ static inline dma_addr_t -scic_io_request_get_dma_addr(struct scic_sds_request *sci_req, void *virt_addr) +scic_io_request_get_dma_addr(struct isci_request *ireq, void *virt_addr) { - struct isci_request *ireq = sci_req_to_ireq(sci_req); char *requested_addr = (char *)virt_addr; char *base_addr = (char *)ireq; @@ -565,14 +503,14 @@ enum sci_status scic_task_request_construct(struct scic_sds_controller *scic, struct scic_sds_remote_device *sci_dev, u16 io_tag, - struct scic_sds_request *sci_req); + struct isci_request *ireq); enum sci_status -scic_task_request_construct_ssp(struct scic_sds_request *sci_req); +scic_task_request_construct_ssp(struct isci_request *ireq); enum sci_status -scic_task_request_construct_sata(struct scic_sds_request *sci_req); +scic_task_request_construct_sata(struct isci_request *ireq); void -scic_stp_io_request_set_ncq_tag(struct scic_sds_request *sci_req, u16 ncq_tag); -void scic_sds_smp_request_copy_response(struct scic_sds_request *sci_req); +scic_stp_io_request_set_ncq_tag(struct isci_request *ireq, u16 ncq_tag); +void scic_sds_smp_request_copy_response(struct isci_request *ireq); static inline int isci_task_is_ncq_recovery(struct sas_task *task) { diff --git a/drivers/scsi/isci/sata.c b/drivers/scsi/isci/sata.c index e7ce4692446..87d8cc1a6e3 100644 --- a/drivers/scsi/isci/sata.c +++ b/drivers/scsi/isci/sata.c @@ -70,7 +70,7 @@ struct host_to_dev_fis *isci_sata_task_to_fis_copy(struct sas_task *task) { struct isci_request *ireq = task->lldd_task; - struct host_to_dev_fis *fis = &ireq->sci.stp.cmd; + struct host_to_dev_fis *fis = &ireq->stp.cmd; memcpy(fis, &task->ata_task.fis, sizeof(struct host_to_dev_fis)); @@ -116,7 +116,7 @@ void isci_sata_set_ncq_tag( struct isci_request *request = task->lldd_task; register_fis->sector_count = qc->tag << 3; - scic_stp_io_request_set_ncq_tag(&request->sci, qc->tag); + scic_stp_io_request_set_ncq_tag(request, qc->tag); } /** @@ -154,7 +154,6 @@ void isci_request_process_stp_response(struct sas_task *task, enum sci_status isci_sata_management_task_request_build(struct isci_request *ireq) { - struct scic_sds_request *sci_req = &ireq->sci; struct isci_tmf *isci_tmf; enum sci_status status; @@ -167,7 +166,7 @@ enum sci_status isci_sata_management_task_request_build(struct isci_request *ire case isci_tmf_sata_srst_high: case isci_tmf_sata_srst_low: { - struct host_to_dev_fis *fis = &sci_req->stp.cmd; + struct host_to_dev_fis *fis = &ireq->stp.cmd; memset(fis, 0, sizeof(*fis)); @@ -188,7 +187,7 @@ enum sci_status isci_sata_management_task_request_build(struct isci_request *ire /* core builds the protocol specific request * based on the h2d fis. */ - status = scic_task_request_construct_sata(&ireq->sci); + status = scic_task_request_construct_sata(ireq); return status; } diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index d2dba835489..700708c8267 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -258,7 +258,7 @@ static struct isci_request *isci_task_request_build(struct isci_host *ihost, /* let the core do it's construct. */ status = scic_task_request_construct(&ihost->sci, &idev->sci, tag, - &ireq->sci); + ireq); if (status != SCI_SUCCESS) { dev_warn(&ihost->pdev->dev, @@ -272,7 +272,7 @@ static struct isci_request *isci_task_request_build(struct isci_host *ihost, /* XXX convert to get this from task->tproto like other drivers */ if (dev->dev_type == SAS_END_DEV) { isci_tmf->proto = SAS_PROTOCOL_SSP; - status = scic_task_request_construct_ssp(&ireq->sci); + status = scic_task_request_construct_ssp(ireq); if (status != SCI_SUCCESS) return NULL; } @@ -337,7 +337,7 @@ int isci_task_execute_tmf(struct isci_host *ihost, /* start the TMF io. */ status = scic_controller_start_task(&ihost->sci, sci_device, - &ireq->sci); + ireq); if (status != SCI_TASK_SUCCESS) { dev_warn(&ihost->pdev->dev, @@ -371,7 +371,7 @@ int isci_task_execute_tmf(struct isci_host *ihost, scic_controller_terminate_request(&ihost->sci, &isci_device->sci, - &ireq->sci); + ireq); spin_unlock_irqrestore(&ihost->scic_lock, flags); @@ -565,7 +565,7 @@ static void isci_terminate_request_core( status = scic_controller_terminate_request( &isci_host->sci, &isci_device->sci, - &isci_request->sci); + isci_request); } spin_unlock_irqrestore(&isci_host->scic_lock, flags); @@ -1235,7 +1235,6 @@ isci_task_request_complete(struct isci_host *ihost, { struct isci_tmf *tmf = isci_request_access_tmf(ireq); struct completion *tmf_complete; - struct scic_sds_request *sci_req = &ireq->sci; dev_dbg(&ihost->pdev->dev, "%s: request = %p, status=%d\n", @@ -1248,18 +1247,18 @@ isci_task_request_complete(struct isci_host *ihost, if (tmf->proto == SAS_PROTOCOL_SSP) { memcpy(&tmf->resp.resp_iu, - &sci_req->ssp.rsp, + &ireq->ssp.rsp, SSP_RESP_IU_MAX_SIZE); } else if (tmf->proto == SAS_PROTOCOL_SATA) { memcpy(&tmf->resp.d2h_fis, - &sci_req->stp.rsp, + &ireq->stp.rsp, sizeof(struct dev_to_host_fis)); } /* PRINT_TMF( ((struct isci_tmf *)request->task)); */ tmf_complete = tmf->complete; - scic_controller_complete_io(&ihost->sci, ireq->sci.target_device, &ireq->sci); + scic_controller_complete_io(&ihost->sci, ireq->target_device, ireq); /* set the 'terminated' flag handle to make sure it cannot be terminated * or completed again. */ -- cgit v1.2.3-70-g09d2 From 852809559e4680ba4768262a6c3d21454fcd460e Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 28 Jun 2011 15:05:53 -0700 Subject: isci: unify isci_phy and scic_sds_phy They are one in the same object so remove the distinction. The near duplicate fields (owning_port, and isci_port) will be cleaned up after the scic_sds_port isci_port unification. Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/host.c | 92 ++++---- drivers/scsi/isci/host.h | 17 +- drivers/scsi/isci/phy.c | 479 +++++++++++++++++++------------------- drivers/scsi/isci/phy.h | 112 ++------- drivers/scsi/isci/port.c | 299 ++++++++++-------------- drivers/scsi/isci/port.h | 16 +- drivers/scsi/isci/port_config.c | 135 +++++------ drivers/scsi/isci/remote_device.c | 2 +- 8 files changed, 500 insertions(+), 652 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index d91cd6d8274..c5c2733a519 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -311,7 +311,7 @@ static void scic_sds_controller_unsolicited_frame(struct scic_sds_controller *sc struct isci_host *ihost = scic_to_ihost(scic); struct scu_unsolicited_frame_header *frame_header; - struct scic_sds_phy *phy; + struct isci_phy *iphy; struct scic_sds_remote_device *device; enum sci_status result = SCI_FAILURE; @@ -332,8 +332,8 @@ static void scic_sds_controller_unsolicited_frame(struct scic_sds_controller *sc if (frame_header->is_address_frame) { index = SCU_GET_PROTOCOL_ENGINE_INDEX(completion_entry); - phy = &ihost->phys[index].sci; - result = scic_sds_phy_frame_handler(phy, frame_index); + iphy = &ihost->phys[index]; + result = scic_sds_phy_frame_handler(iphy, frame_index); } else { index = SCU_GET_COMPLETION_INDEX(completion_entry); @@ -344,8 +344,8 @@ static void scic_sds_controller_unsolicited_frame(struct scic_sds_controller *sc * device that has not yet been created. In either case forwared * the frame to the PE and let it take care of the frame data. */ index = SCU_GET_PROTOCOL_ENGINE_INDEX(completion_entry); - phy = &ihost->phys[index].sci; - result = scic_sds_phy_frame_handler(phy, frame_index); + iphy = &ihost->phys[index]; + result = scic_sds_phy_frame_handler(iphy, frame_index); } else { if (index < scic->remote_node_entries) device = scic->device_table[index]; @@ -372,7 +372,7 @@ static void scic_sds_controller_event_completion(struct scic_sds_controller *sci struct isci_host *ihost = scic_to_ihost(scic); struct scic_sds_remote_device *device; struct isci_request *ireq; - struct scic_sds_phy *phy; + struct isci_phy *iphy; u32 index; index = SCU_GET_COMPLETION_INDEX(completion_entry); @@ -452,8 +452,8 @@ static void scic_sds_controller_event_completion(struct scic_sds_controller *sci * we get the event notification. This is a type 4 event. */ case SCU_EVENT_TYPE_OSSP_EVENT: index = SCU_GET_PROTOCOL_ENGINE_INDEX(completion_entry); - phy = &ihost->phys[index].sci; - scic_sds_phy_event_handler(phy, completion_entry); + iphy = &ihost->phys[index]; + scic_sds_phy_event_handler(iphy, completion_entry); break; case SCU_EVENT_TYPE_RNC_SUSPEND_TX: @@ -862,11 +862,11 @@ static void scic_sds_controller_transition_to_ready( } } -static bool is_phy_starting(struct scic_sds_phy *sci_phy) +static bool is_phy_starting(struct isci_phy *iphy) { enum scic_sds_phy_states state; - state = sci_phy->sm.current_state_id; + state = iphy->sm.current_state_id; switch (state) { case SCI_PHY_STARTING: case SCI_PHY_SUB_INITIAL: @@ -896,7 +896,7 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro { struct isci_host *ihost = scic_to_ihost(scic); struct scic_sds_oem_params *oem = &scic->oem_parameters.sds1; - struct scic_sds_phy *sci_phy; + struct isci_phy *iphy; enum sci_status status; status = SCI_SUCCESS; @@ -910,10 +910,10 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro u8 index; for (index = 0; index < SCI_MAX_PHYS; index++) { - sci_phy = &ihost->phys[index].sci; - state = sci_phy->sm.current_state_id; + iphy = &ihost->phys[index]; + state = iphy->sm.current_state_id; - if (!phy_get_non_dummy_port(sci_phy)) + if (!phy_get_non_dummy_port(iphy)) continue; /* The controller start operation is complete iff: @@ -922,9 +922,9 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro * - have an indication of a connected device and it has * finished the link training process. */ - if ((sci_phy->is_in_link_training == false && state == SCI_PHY_INITIAL) || - (sci_phy->is_in_link_training == false && state == SCI_PHY_STOPPED) || - (sci_phy->is_in_link_training == true && is_phy_starting(sci_phy))) { + if ((iphy->is_in_link_training == false && state == SCI_PHY_INITIAL) || + (iphy->is_in_link_training == false && state == SCI_PHY_STOPPED) || + (iphy->is_in_link_training == true && is_phy_starting(iphy))) { is_controller_start_complete = false; break; } @@ -939,10 +939,10 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro scic->phy_startup_timer_pending = false; } } else { - sci_phy = &ihost->phys[scic->next_phy_to_start].sci; + iphy = &ihost->phys[scic->next_phy_to_start]; if (oem->controller.mode_type == SCIC_PORT_MANUAL_CONFIGURATION_MODE) { - if (phy_get_non_dummy_port(sci_phy) == NULL) { + if (phy_get_non_dummy_port(iphy) == NULL) { scic->next_phy_to_start++; /* Caution recursion ahead be forwarned @@ -958,7 +958,7 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro } } - status = scic_sds_phy_start(sci_phy); + status = scic_sds_phy_start(iphy); if (status == SCI_SUCCESS) { sci_mod_timer(&scic->phy_timer, @@ -970,7 +970,7 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro "to stop phy %d because of status " "%d.\n", __func__, - ihost->phys[scic->next_phy_to_start].sci.phy_index, + ihost->phys[scic->next_phy_to_start].phy_index, status); } @@ -1312,8 +1312,8 @@ void isci_host_deinit(struct isci_host *ihost) /* Cancel any/all outstanding phy timers */ for (i = 0; i < SCI_MAX_PHYS; i++) { - struct scic_sds_phy *sci_phy = &ihost->phys[i].sci; - del_timer_sync(&sci_phy->sata_timer.timer); + struct isci_phy *iphy = &ihost->phys[i]; + del_timer_sync(&iphy->sata_timer.timer); } del_timer_sync(&ihost->sci.port_agent.timer.timer); @@ -1527,7 +1527,7 @@ static enum sci_status scic_sds_controller_stop_phys(struct scic_sds_controller status = SCI_SUCCESS; for (index = 0; index < SCI_MAX_PHYS; index++) { - phy_status = scic_sds_phy_stop(&ihost->phys[index].sci); + phy_status = scic_sds_phy_stop(&ihost->phys[index]); if (phy_status != SCI_SUCCESS && phy_status != SCI_FAILURE_INVALID_STATE) { @@ -1537,7 +1537,7 @@ static enum sci_status scic_sds_controller_stop_phys(struct scic_sds_controller "%s: Controller stop operation failed to stop " "phy %d because of status %d.\n", __func__, - ihost->phys[index].sci.phy_index, phy_status); + ihost->phys[index].phy_index, phy_status); } } @@ -1786,7 +1786,7 @@ static enum sci_status scic_controller_construct(struct scic_sds_controller *sci /* Construct the phys for this controller */ for (i = 0; i < SCI_MAX_PHYS; i++) { /* Add all the PHYs to the dummy port */ - scic_sds_phy_construct(&ihost->phys[i].sci, + scic_sds_phy_construct(&ihost->phys[i], &ihost->ports[SCI_MAX_PORTS].sci, i); } @@ -1865,7 +1865,7 @@ static void power_control_timeout(unsigned long data) struct sci_timer *tmr = (struct sci_timer *)data; struct scic_sds_controller *scic = container_of(tmr, typeof(*scic), power_control.timer); struct isci_host *ihost = scic_to_ihost(scic); - struct scic_sds_phy *sci_phy; + struct isci_phy *iphy; unsigned long flags; u8 i; @@ -1886,8 +1886,8 @@ static void power_control_timeout(unsigned long data) if (scic->power_control.phys_waiting == 0) break; - sci_phy = scic->power_control.requesters[i]; - if (sci_phy == NULL) + iphy = scic->power_control.requesters[i]; + if (iphy == NULL) continue; if (scic->power_control.phys_granted_power >= @@ -1897,7 +1897,7 @@ static void power_control_timeout(unsigned long data) scic->power_control.requesters[i] = NULL; scic->power_control.phys_waiting--; scic->power_control.phys_granted_power++; - scic_sds_phy_consume_power_handler(sci_phy); + scic_sds_phy_consume_power_handler(iphy); } /* @@ -1919,14 +1919,14 @@ done: */ void scic_sds_controller_power_control_queue_insert( struct scic_sds_controller *scic, - struct scic_sds_phy *sci_phy) + struct isci_phy *iphy) { - BUG_ON(sci_phy == NULL); + BUG_ON(iphy == NULL); if (scic->power_control.phys_granted_power < scic->oem_parameters.sds1.controller.max_concurrent_dev_spin_up) { scic->power_control.phys_granted_power++; - scic_sds_phy_consume_power_handler(sci_phy); + scic_sds_phy_consume_power_handler(iphy); /* * stop and start the power_control timer. When the timer fires, the @@ -1941,7 +1941,7 @@ void scic_sds_controller_power_control_queue_insert( } else { /* Add the phy in the waiting list */ - scic->power_control.requesters[sci_phy->phy_index] = sci_phy; + scic->power_control.requesters[iphy->phy_index] = iphy; scic->power_control.phys_waiting++; } } @@ -1954,15 +1954,15 @@ void scic_sds_controller_power_control_queue_insert( */ void scic_sds_controller_power_control_queue_remove( struct scic_sds_controller *scic, - struct scic_sds_phy *sci_phy) + struct isci_phy *iphy) { - BUG_ON(sci_phy == NULL); + BUG_ON(iphy == NULL); - if (scic->power_control.requesters[sci_phy->phy_index] != NULL) { + if (scic->power_control.requesters[iphy->phy_index] != NULL) { scic->power_control.phys_waiting--; } - scic->power_control.requesters[sci_phy->phy_index] = NULL; + scic->power_control.requesters[iphy->phy_index] = NULL; } #define AFE_REGISTER_WRITE_DELAY 10 @@ -2225,7 +2225,7 @@ static enum sci_status scic_controller_initialize(struct scic_sds_controller *sc * are accessed during the port initialization. */ for (i = 0; i < SCI_MAX_PHYS; i++) { - result = scic_sds_phy_initialize(&ihost->phys[i].sci, + result = scic_sds_phy_initialize(&ihost->phys[i], &scic->scu_registers->peg0.pe[i].tl, &scic->scu_registers->peg0.pe[i].ll); if (result != SCI_SUCCESS) @@ -2484,43 +2484,43 @@ int isci_host_init(struct isci_host *isci_host) } void scic_sds_controller_link_up(struct scic_sds_controller *scic, - struct scic_sds_port *port, struct scic_sds_phy *phy) + struct scic_sds_port *port, struct isci_phy *iphy) { switch (scic->sm.current_state_id) { case SCIC_STARTING: sci_del_timer(&scic->phy_timer); scic->phy_startup_timer_pending = false; scic->port_agent.link_up_handler(scic, &scic->port_agent, - port, phy); + port, iphy); scic_sds_controller_start_next_phy(scic); break; case SCIC_READY: scic->port_agent.link_up_handler(scic, &scic->port_agent, - port, phy); + port, iphy); break; default: dev_dbg(scic_to_dev(scic), "%s: SCIC Controller linkup event from phy %d in " - "unexpected state %d\n", __func__, phy->phy_index, + "unexpected state %d\n", __func__, iphy->phy_index, scic->sm.current_state_id); } } void scic_sds_controller_link_down(struct scic_sds_controller *scic, - struct scic_sds_port *port, struct scic_sds_phy *phy) + struct scic_sds_port *port, struct isci_phy *iphy) { switch (scic->sm.current_state_id) { case SCIC_STARTING: case SCIC_READY: scic->port_agent.link_down_handler(scic, &scic->port_agent, - port, phy); + port, iphy); break; default: dev_dbg(scic_to_dev(scic), "%s: SCIC Controller linkdown event from phy %d in " "unexpected state %d\n", __func__, - phy->phy_index, + iphy->phy_index, scic->sm.current_state_id); } } diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index 0b26d25c19a..1edd13535c2 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -101,14 +101,14 @@ struct scic_power_control { * This field is an array of phys that we are waiting on. The phys are direct * mapped into requesters via struct scic_sds_phy.phy_index */ - struct scic_sds_phy *requesters[SCI_MAX_PHYS]; + struct isci_phy *requesters[SCI_MAX_PHYS]; }; struct scic_sds_port_configuration_agent; typedef void (*port_config_fn)(struct scic_sds_controller *, struct scic_sds_port_configuration_agent *, - struct scic_sds_port *, struct scic_sds_phy *); + struct scic_sds_port *, struct isci_phy *); struct scic_sds_port_configuration_agent { u16 phy_configured_mask; @@ -523,9 +523,8 @@ static inline struct device *scic_to_dev(struct scic_sds_controller *scic) return &scic_to_ihost(scic)->pdev->dev; } -static inline struct device *sciphy_to_dev(struct scic_sds_phy *sci_phy) +static inline struct device *sciphy_to_dev(struct isci_phy *iphy) { - struct isci_phy *iphy = sci_phy_to_iphy(sci_phy); if (!iphy || !iphy->isci_port || !iphy->isci_port->isci_host) return NULL; @@ -606,21 +605,21 @@ struct isci_request *scic_request_by_tag(struct scic_sds_controller *scic, void scic_sds_controller_power_control_queue_insert( struct scic_sds_controller *scic, - struct scic_sds_phy *sci_phy); + struct isci_phy *iphy); void scic_sds_controller_power_control_queue_remove( struct scic_sds_controller *scic, - struct scic_sds_phy *sci_phy); + struct isci_phy *iphy); void scic_sds_controller_link_up( struct scic_sds_controller *scic, struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy); + struct isci_phy *iphy); void scic_sds_controller_link_down( struct scic_sds_controller *scic, struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy); + struct isci_phy *iphy); void scic_sds_controller_remote_device_stopped( struct scic_sds_controller *scic, @@ -651,7 +650,7 @@ void isci_host_deinit( void isci_host_port_link_up( struct isci_host *, struct scic_sds_port *, - struct scic_sds_phy *); + struct isci_phy *); int isci_host_dev_found(struct domain_device *); void isci_host_remote_device_start_complete( diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c index 98d93aeea75..0e60fb7bc1a 100644 --- a/drivers/scsi/isci/phy.c +++ b/drivers/scsi/isci/phy.c @@ -62,9 +62,9 @@ /* Maximum arbitration wait time in micro-seconds */ #define SCIC_SDS_PHY_MAX_ARBITRATION_WAIT_TIME (700) -enum sas_linkrate sci_phy_linkrate(struct scic_sds_phy *sci_phy) +enum sas_linkrate sci_phy_linkrate(struct isci_phy *iphy) { - return sci_phy->max_negotiated_speed; + return iphy->max_negotiated_speed; } /* @@ -80,23 +80,23 @@ enum sas_linkrate sci_phy_linkrate(struct scic_sds_phy *sci_phy) * enum sci_status */ static enum sci_status scic_sds_phy_transport_layer_initialization( - struct scic_sds_phy *sci_phy, + struct isci_phy *iphy, struct scu_transport_layer_registers __iomem *transport_layer_registers) { u32 tl_control; - sci_phy->transport_layer_registers = transport_layer_registers; + iphy->transport_layer_registers = transport_layer_registers; writel(SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX, - &sci_phy->transport_layer_registers->stp_rni); + &iphy->transport_layer_registers->stp_rni); /* * Hardware team recommends that we enable the STP prefetch for all * transports */ - tl_control = readl(&sci_phy->transport_layer_registers->control); + tl_control = readl(&iphy->transport_layer_registers->control); tl_control |= SCU_TLCR_GEN_BIT(STP_WRITE_DATA_PREFETCH); - writel(tl_control, &sci_phy->transport_layer_registers->control); + writel(tl_control, &iphy->transport_layer_registers->control); return SCI_SUCCESS; } @@ -109,12 +109,12 @@ static enum sci_status scic_sds_phy_transport_layer_initialization( * enum sci_status */ static enum sci_status -scic_sds_phy_link_layer_initialization(struct scic_sds_phy *sci_phy, +scic_sds_phy_link_layer_initialization(struct isci_phy *iphy, struct scu_link_layer_registers __iomem *link_layer_registers) { struct scic_sds_controller *scic = - sci_phy->owning_port->owning_controller; - int phy_idx = sci_phy->phy_index; + iphy->owning_port->owning_controller; + int phy_idx = iphy->phy_index; struct sci_phy_user_params *phy_user = &scic->user_parameters.sds1.phys[phy_idx]; struct sci_phy_oem_params *phy_oem = @@ -126,7 +126,7 @@ scic_sds_phy_link_layer_initialization(struct scic_sds_phy *sci_phy, u32 llctl, link_rate; u32 clksm_value = 0; - sci_phy->link_layer_registers = link_layer_registers; + iphy->link_layer_registers = link_layer_registers; /* Set our IDENTIFY frame data */ #define SCI_END_DEVICE 0x01 @@ -136,32 +136,32 @@ scic_sds_phy_link_layer_initialization(struct scic_sds_phy *sci_phy, SCU_SAS_TIID_GEN_BIT(STP_INITIATOR) | SCU_SAS_TIID_GEN_BIT(DA_SATA_HOST) | SCU_SAS_TIID_GEN_VAL(DEVICE_TYPE, SCI_END_DEVICE), - &sci_phy->link_layer_registers->transmit_identification); + &iphy->link_layer_registers->transmit_identification); /* Write the device SAS Address */ writel(0xFEDCBA98, - &sci_phy->link_layer_registers->sas_device_name_high); - writel(phy_idx, &sci_phy->link_layer_registers->sas_device_name_low); + &iphy->link_layer_registers->sas_device_name_high); + writel(phy_idx, &iphy->link_layer_registers->sas_device_name_low); /* Write the source SAS Address */ writel(phy_oem->sas_address.high, - &sci_phy->link_layer_registers->source_sas_address_high); + &iphy->link_layer_registers->source_sas_address_high); writel(phy_oem->sas_address.low, - &sci_phy->link_layer_registers->source_sas_address_low); + &iphy->link_layer_registers->source_sas_address_low); /* Clear and Set the PHY Identifier */ - writel(0, &sci_phy->link_layer_registers->identify_frame_phy_id); + writel(0, &iphy->link_layer_registers->identify_frame_phy_id); writel(SCU_SAS_TIPID_GEN_VALUE(ID, phy_idx), - &sci_phy->link_layer_registers->identify_frame_phy_id); + &iphy->link_layer_registers->identify_frame_phy_id); /* Change the initial state of the phy configuration register */ phy_configuration = - readl(&sci_phy->link_layer_registers->phy_configuration); + readl(&iphy->link_layer_registers->phy_configuration); /* Hold OOB state machine in reset */ phy_configuration |= SCU_SAS_PCFG_GEN_BIT(OOB_RESET); writel(phy_configuration, - &sci_phy->link_layer_registers->phy_configuration); + &iphy->link_layer_registers->phy_configuration); /* Configure the SNW capabilities */ phy_cap.all = 0; @@ -191,14 +191,14 @@ scic_sds_phy_link_layer_initialization(struct scic_sds_phy *sci_phy, if ((parity_count % 2) != 0) phy_cap.parity = 1; - writel(phy_cap.all, &sci_phy->link_layer_registers->phy_capabilities); + writel(phy_cap.all, &iphy->link_layer_registers->phy_capabilities); /* Set the enable spinup period but disable the ability to send * notify enable spinup */ writel(SCU_ENSPINUP_GEN_VAL(COUNT, phy_user->notify_enable_spin_up_insertion_frequency), - &sci_phy->link_layer_registers->notify_enable_spinup_control); + &iphy->link_layer_registers->notify_enable_spinup_control); /* Write the ALIGN Insertion Ferequency for connected phy and * inpendent of connected state @@ -209,11 +209,11 @@ scic_sds_phy_link_layer_initialization(struct scic_sds_phy *sci_phy, clksm_value |= SCU_ALIGN_INSERTION_FREQUENCY_GEN_VAL(GENERAL, phy_user->align_insertion_frequency); - writel(clksm_value, &sci_phy->link_layer_registers->clock_skew_management); + writel(clksm_value, &iphy->link_layer_registers->clock_skew_management); /* @todo Provide a way to write this register correctly */ writel(0x02108421, - &sci_phy->link_layer_registers->afe_lookup_table_control); + &iphy->link_layer_registers->afe_lookup_table_control); llctl = SCU_SAS_LLCTL_GEN_VAL(NO_OUTBOUND_TASK_TIMEOUT, (u8)scic->user_parameters.sds1.no_outbound_task_timeout); @@ -230,7 +230,7 @@ scic_sds_phy_link_layer_initialization(struct scic_sds_phy *sci_phy, break; } llctl |= SCU_SAS_LLCTL_GEN_VAL(MAX_LINK_RATE, link_rate); - writel(llctl, &sci_phy->link_layer_registers->link_layer_control); + writel(llctl, &iphy->link_layer_registers->link_layer_control); if (is_a0() || is_a2()) { /* Program the max ARB time for the PHY to 700us so we inter-operate with @@ -239,14 +239,14 @@ scic_sds_phy_link_layer_initialization(struct scic_sds_phy *sci_phy, * generate the break. */ writel(SCIC_SDS_PHY_MAX_ARBITRATION_WAIT_TIME, - &sci_phy->link_layer_registers->maximum_arbitration_wait_timer_timeout); + &iphy->link_layer_registers->maximum_arbitration_wait_timer_timeout); } /* Disable link layer hang detection, rely on the OS timeout for I/O timeouts. */ - writel(0, &sci_phy->link_layer_registers->link_layer_hang_detection_timeout); + writel(0, &iphy->link_layer_registers->link_layer_hang_detection_timeout); /* We can exit the initial state to the stopped state */ - sci_change_state(&sci_phy->sm, SCI_PHY_STOPPED); + sci_change_state(&iphy->sm, SCI_PHY_STOPPED); return SCI_SUCCESS; } @@ -254,8 +254,8 @@ scic_sds_phy_link_layer_initialization(struct scic_sds_phy *sci_phy, static void phy_sata_timeout(unsigned long data) { struct sci_timer *tmr = (struct sci_timer *)data; - struct scic_sds_phy *sci_phy = container_of(tmr, typeof(*sci_phy), sata_timer); - struct isci_host *ihost = scic_to_ihost(sci_phy->owning_port->owning_controller); + struct isci_phy *iphy = container_of(tmr, typeof(*iphy), sata_timer); + struct isci_host *ihost = scic_to_ihost(iphy->owning_port->owning_controller); unsigned long flags; spin_lock_irqsave(&ihost->scic_lock, flags); @@ -263,13 +263,13 @@ static void phy_sata_timeout(unsigned long data) if (tmr->cancel) goto done; - dev_dbg(sciphy_to_dev(sci_phy), + dev_dbg(sciphy_to_dev(iphy), "%s: SCIC SDS Phy 0x%p did not receive signature fis before " "timeout.\n", __func__, - sci_phy); + iphy); - sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); + sci_change_state(&iphy->sm, SCI_PHY_STARTING); done: spin_unlock_irqrestore(&ihost->scic_lock, flags); } @@ -287,30 +287,30 @@ done: * values indicate a handle/pointer to the port containing the phy. */ struct scic_sds_port *phy_get_non_dummy_port( - struct scic_sds_phy *sci_phy) + struct isci_phy *iphy) { - if (scic_sds_port_get_index(sci_phy->owning_port) == SCIC_SDS_DUMMY_PORT) + if (scic_sds_port_get_index(iphy->owning_port) == SCIC_SDS_DUMMY_PORT) return NULL; - return sci_phy->owning_port; + return iphy->owning_port; } /** * This method will assign a port to the phy object. - * @out]: sci_phy This parameter specifies the phy for which to assign a port + * @out]: iphy This parameter specifies the phy for which to assign a port * object. * * */ void scic_sds_phy_set_port( - struct scic_sds_phy *sci_phy, + struct isci_phy *iphy, struct scic_sds_port *sci_port) { - sci_phy->owning_port = sci_port; + iphy->owning_port = sci_port; - if (sci_phy->bcn_received_while_port_unassigned) { - sci_phy->bcn_received_while_port_unassigned = false; - scic_sds_port_broadcast_change_received(sci_phy->owning_port, sci_phy); + if (iphy->bcn_received_while_port_unassigned) { + iphy->bcn_received_while_port_unassigned = false; + scic_sds_port_broadcast_change_received(iphy->owning_port, iphy); } } @@ -322,22 +322,22 @@ void scic_sds_phy_set_port( * enum sci_status */ enum sci_status scic_sds_phy_initialize( - struct scic_sds_phy *sci_phy, + struct isci_phy *iphy, struct scu_transport_layer_registers __iomem *transport_layer_registers, struct scu_link_layer_registers __iomem *link_layer_registers) { /* Perfrom the initialization of the TL hardware */ scic_sds_phy_transport_layer_initialization( - sci_phy, + iphy, transport_layer_registers); /* Perofrm the initialization of the PE hardware */ - scic_sds_phy_link_layer_initialization(sci_phy, link_layer_registers); + scic_sds_phy_link_layer_initialization(iphy, link_layer_registers); /* * There is nothing that needs to be done in this state just * transition to the stopped state. */ - sci_change_state(&sci_phy->sm, SCI_PHY_STOPPED); + sci_change_state(&iphy->sm, SCI_PHY_STOPPED); return SCI_SUCCESS; } @@ -345,27 +345,27 @@ enum sci_status scic_sds_phy_initialize( /** * This method assigns the direct attached device ID for this phy. * - * @sci_phy The phy for which the direct attached device id is to + * @iphy The phy for which the direct attached device id is to * be assigned. * @device_id The direct attached device ID to assign to the phy. * This will either be the RNi for the device or an invalid RNi if there * is no current device assigned to the phy. */ void scic_sds_phy_setup_transport( - struct scic_sds_phy *sci_phy, + struct isci_phy *iphy, u32 device_id) { u32 tl_control; - writel(device_id, &sci_phy->transport_layer_registers->stp_rni); + writel(device_id, &iphy->transport_layer_registers->stp_rni); /* * The read should guarantee that the first write gets posted * before the next write */ - tl_control = readl(&sci_phy->transport_layer_registers->control); + tl_control = readl(&iphy->transport_layer_registers->control); tl_control |= SCU_TLCR_GEN_BIT(CLEAR_TCI_NCQ_MAPPING_TABLE); - writel(tl_control, &sci_phy->transport_layer_registers->control); + writel(tl_control, &iphy->transport_layer_registers->control); } /** @@ -376,75 +376,74 @@ void scic_sds_phy_setup_transport( * hardware protocol engine. none */ static void scic_sds_phy_suspend( - struct scic_sds_phy *sci_phy) + struct isci_phy *iphy) { u32 scu_sas_pcfg_value; scu_sas_pcfg_value = - readl(&sci_phy->link_layer_registers->phy_configuration); + readl(&iphy->link_layer_registers->phy_configuration); scu_sas_pcfg_value |= SCU_SAS_PCFG_GEN_BIT(SUSPEND_PROTOCOL_ENGINE); writel(scu_sas_pcfg_value, - &sci_phy->link_layer_registers->phy_configuration); + &iphy->link_layer_registers->phy_configuration); scic_sds_phy_setup_transport( - sci_phy, + iphy, SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX); } -void scic_sds_phy_resume(struct scic_sds_phy *sci_phy) +void scic_sds_phy_resume(struct isci_phy *iphy) { u32 scu_sas_pcfg_value; scu_sas_pcfg_value = - readl(&sci_phy->link_layer_registers->phy_configuration); + readl(&iphy->link_layer_registers->phy_configuration); scu_sas_pcfg_value &= ~SCU_SAS_PCFG_GEN_BIT(SUSPEND_PROTOCOL_ENGINE); writel(scu_sas_pcfg_value, - &sci_phy->link_layer_registers->phy_configuration); + &iphy->link_layer_registers->phy_configuration); } -void scic_sds_phy_get_sas_address(struct scic_sds_phy *sci_phy, +void scic_sds_phy_get_sas_address(struct isci_phy *iphy, struct sci_sas_address *sas_address) { - sas_address->high = readl(&sci_phy->link_layer_registers->source_sas_address_high); - sas_address->low = readl(&sci_phy->link_layer_registers->source_sas_address_low); + sas_address->high = readl(&iphy->link_layer_registers->source_sas_address_high); + sas_address->low = readl(&iphy->link_layer_registers->source_sas_address_low); } -void scic_sds_phy_get_attached_sas_address(struct scic_sds_phy *sci_phy, +void scic_sds_phy_get_attached_sas_address(struct isci_phy *iphy, struct sci_sas_address *sas_address) { struct sas_identify_frame *iaf; - struct isci_phy *iphy = sci_phy_to_iphy(sci_phy); iaf = &iphy->frame_rcvd.iaf; memcpy(sas_address, iaf->sas_addr, SAS_ADDR_SIZE); } -void scic_sds_phy_get_protocols(struct scic_sds_phy *sci_phy, +void scic_sds_phy_get_protocols(struct isci_phy *iphy, struct scic_phy_proto *protocols) { protocols->all = - (u16)(readl(&sci_phy-> + (u16)(readl(&iphy-> link_layer_registers->transmit_identification) & 0x0000FFFF); } -enum sci_status scic_sds_phy_start(struct scic_sds_phy *sci_phy) +enum sci_status scic_sds_phy_start(struct isci_phy *iphy) { - enum scic_sds_phy_states state = sci_phy->sm.current_state_id; + enum scic_sds_phy_states state = iphy->sm.current_state_id; if (state != SCI_PHY_STOPPED) { - dev_dbg(sciphy_to_dev(sci_phy), + dev_dbg(sciphy_to_dev(iphy), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } - sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); + sci_change_state(&iphy->sm, SCI_PHY_STARTING); return SCI_SUCCESS; } -enum sci_status scic_sds_phy_stop(struct scic_sds_phy *sci_phy) +enum sci_status scic_sds_phy_stop(struct isci_phy *iphy) { - enum scic_sds_phy_states state = sci_phy->sm.current_state_id; + enum scic_sds_phy_states state = iphy->sm.current_state_id; switch (state) { case SCI_PHY_SUB_INITIAL: @@ -459,43 +458,43 @@ enum sci_status scic_sds_phy_stop(struct scic_sds_phy *sci_phy) case SCI_PHY_READY: break; default: - dev_dbg(sciphy_to_dev(sci_phy), + dev_dbg(sciphy_to_dev(iphy), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } - sci_change_state(&sci_phy->sm, SCI_PHY_STOPPED); + sci_change_state(&iphy->sm, SCI_PHY_STOPPED); return SCI_SUCCESS; } -enum sci_status scic_sds_phy_reset(struct scic_sds_phy *sci_phy) +enum sci_status scic_sds_phy_reset(struct isci_phy *iphy) { - enum scic_sds_phy_states state = sci_phy->sm.current_state_id; + enum scic_sds_phy_states state = iphy->sm.current_state_id; if (state != SCI_PHY_READY) { - dev_dbg(sciphy_to_dev(sci_phy), + dev_dbg(sciphy_to_dev(iphy), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } - sci_change_state(&sci_phy->sm, SCI_PHY_RESETTING); + sci_change_state(&iphy->sm, SCI_PHY_RESETTING); return SCI_SUCCESS; } -enum sci_status scic_sds_phy_consume_power_handler(struct scic_sds_phy *sci_phy) +enum sci_status scic_sds_phy_consume_power_handler(struct isci_phy *iphy) { - enum scic_sds_phy_states state = sci_phy->sm.current_state_id; + enum scic_sds_phy_states state = iphy->sm.current_state_id; switch (state) { case SCI_PHY_SUB_AWAIT_SAS_POWER: { u32 enable_spinup; - enable_spinup = readl(&sci_phy->link_layer_registers->notify_enable_spinup_control); + enable_spinup = readl(&iphy->link_layer_registers->notify_enable_spinup_control); enable_spinup |= SCU_ENSPINUP_GEN_BIT(ENABLE); - writel(enable_spinup, &sci_phy->link_layer_registers->notify_enable_spinup_control); + writel(enable_spinup, &iphy->link_layer_registers->notify_enable_spinup_control); /* Change state to the final state this substate machine has run to completion */ - sci_change_state(&sci_phy->sm, SCI_PHY_SUB_FINAL); + sci_change_state(&iphy->sm, SCI_PHY_SUB_FINAL); return SCI_SUCCESS; } @@ -504,26 +503,26 @@ enum sci_status scic_sds_phy_consume_power_handler(struct scic_sds_phy *sci_phy) /* Release the spinup hold state and reset the OOB state machine */ scu_sas_pcfg_value = - readl(&sci_phy->link_layer_registers->phy_configuration); + readl(&iphy->link_layer_registers->phy_configuration); scu_sas_pcfg_value &= ~(SCU_SAS_PCFG_GEN_BIT(SATA_SPINUP_HOLD) | SCU_SAS_PCFG_GEN_BIT(OOB_ENABLE)); scu_sas_pcfg_value |= SCU_SAS_PCFG_GEN_BIT(OOB_RESET); writel(scu_sas_pcfg_value, - &sci_phy->link_layer_registers->phy_configuration); + &iphy->link_layer_registers->phy_configuration); /* Now restart the OOB operation */ scu_sas_pcfg_value &= ~SCU_SAS_PCFG_GEN_BIT(OOB_RESET); scu_sas_pcfg_value |= SCU_SAS_PCFG_GEN_BIT(OOB_ENABLE); writel(scu_sas_pcfg_value, - &sci_phy->link_layer_registers->phy_configuration); + &iphy->link_layer_registers->phy_configuration); /* Change state to the final state this substate machine has run to completion */ - sci_change_state(&sci_phy->sm, SCI_PHY_SUB_AWAIT_SATA_PHY_EN); + sci_change_state(&iphy->sm, SCI_PHY_SUB_AWAIT_SATA_PHY_EN); return SCI_SUCCESS; } default: - dev_dbg(sciphy_to_dev(sci_phy), + dev_dbg(sciphy_to_dev(iphy), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } @@ -545,19 +544,19 @@ enum sci_status scic_sds_phy_consume_power_handler(struct scic_sds_phy *sci_phy) * none */ static void scic_sds_phy_start_sas_link_training( - struct scic_sds_phy *sci_phy) + struct isci_phy *iphy) { u32 phy_control; phy_control = - readl(&sci_phy->link_layer_registers->phy_configuration); + readl(&iphy->link_layer_registers->phy_configuration); phy_control |= SCU_SAS_PCFG_GEN_BIT(SATA_SPINUP_HOLD); writel(phy_control, - &sci_phy->link_layer_registers->phy_configuration); + &iphy->link_layer_registers->phy_configuration); - sci_change_state(&sci_phy->sm, SCI_PHY_SUB_AWAIT_SAS_SPEED_EN); + sci_change_state(&iphy->sm, SCI_PHY_SUB_AWAIT_SAS_SPEED_EN); - sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_SAS; + iphy->protocol = SCIC_SDS_PHY_PROTOCOL_SAS; } /** @@ -569,11 +568,11 @@ static void scic_sds_phy_start_sas_link_training( * SPINUP HOLD event when the state machine was expecting a SAS PHY event. none */ static void scic_sds_phy_start_sata_link_training( - struct scic_sds_phy *sci_phy) + struct isci_phy *iphy) { - sci_change_state(&sci_phy->sm, SCI_PHY_SUB_AWAIT_SATA_POWER); + sci_change_state(&iphy->sm, SCI_PHY_SUB_AWAIT_SATA_POWER); - sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_SATA; + iphy->protocol = SCIC_SDS_PHY_PROTOCOL_SATA; } /** @@ -588,33 +587,33 @@ static void scic_sds_phy_start_sata_link_training( * */ static void scic_sds_phy_complete_link_training( - struct scic_sds_phy *sci_phy, + struct isci_phy *iphy, enum sas_linkrate max_link_rate, u32 next_state) { - sci_phy->max_negotiated_speed = max_link_rate; + iphy->max_negotiated_speed = max_link_rate; - sci_change_state(&sci_phy->sm, next_state); + sci_change_state(&iphy->sm, next_state); } -enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, +enum sci_status scic_sds_phy_event_handler(struct isci_phy *iphy, u32 event_code) { - enum scic_sds_phy_states state = sci_phy->sm.current_state_id; + enum scic_sds_phy_states state = iphy->sm.current_state_id; switch (state) { case SCI_PHY_SUB_AWAIT_OSSP_EN: switch (scu_get_event_code(event_code)) { case SCU_EVENT_SAS_PHY_DETECTED: - scic_sds_phy_start_sas_link_training(sci_phy); - sci_phy->is_in_link_training = true; + scic_sds_phy_start_sas_link_training(iphy); + iphy->is_in_link_training = true; break; case SCU_EVENT_SATA_SPINUP_HOLD: - scic_sds_phy_start_sata_link_training(sci_phy); - sci_phy->is_in_link_training = true; + scic_sds_phy_start_sata_link_training(iphy); + iphy->is_in_link_training = true; break; default: - dev_dbg(sciphy_to_dev(sci_phy), + dev_dbg(sciphy_to_dev(iphy), "%s: PHY starting substate machine received " "unexpected event_code %x\n", __func__, @@ -632,21 +631,21 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, case SCU_EVENT_SAS_15: case SCU_EVENT_SAS_15_SSC: scic_sds_phy_complete_link_training( - sci_phy, + iphy, SAS_LINK_RATE_1_5_GBPS, SCI_PHY_SUB_AWAIT_IAF_UF); break; case SCU_EVENT_SAS_30: case SCU_EVENT_SAS_30_SSC: scic_sds_phy_complete_link_training( - sci_phy, + iphy, SAS_LINK_RATE_3_0_GBPS, SCI_PHY_SUB_AWAIT_IAF_UF); break; case SCU_EVENT_SAS_60: case SCU_EVENT_SAS_60_SSC: scic_sds_phy_complete_link_training( - sci_phy, + iphy, SAS_LINK_RATE_6_0_GBPS, SCI_PHY_SUB_AWAIT_IAF_UF); break; @@ -654,14 +653,14 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, /* * We were doing SAS PHY link training and received a SATA PHY event * continue OOB/SN as if this were a SATA PHY */ - scic_sds_phy_start_sata_link_training(sci_phy); + scic_sds_phy_start_sata_link_training(iphy); break; case SCU_EVENT_LINK_FAILURE: /* Link failure change state back to the starting state */ - sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); + sci_change_state(&iphy->sm, SCI_PHY_STARTING); break; default: - dev_warn(sciphy_to_dev(sci_phy), + dev_warn(sciphy_to_dev(iphy), "%s: PHY starting substate machine received " "unexpected event_code %x\n", __func__, event_code); @@ -674,23 +673,23 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, switch (scu_get_event_code(event_code)) { case SCU_EVENT_SAS_PHY_DETECTED: /* Backup the state machine */ - scic_sds_phy_start_sas_link_training(sci_phy); + scic_sds_phy_start_sas_link_training(iphy); break; case SCU_EVENT_SATA_SPINUP_HOLD: /* We were doing SAS PHY link training and received a * SATA PHY event continue OOB/SN as if this were a * SATA PHY */ - scic_sds_phy_start_sata_link_training(sci_phy); + scic_sds_phy_start_sata_link_training(iphy); break; case SCU_EVENT_RECEIVED_IDENTIFY_TIMEOUT: case SCU_EVENT_LINK_FAILURE: case SCU_EVENT_HARD_RESET_RECEIVED: /* Start the oob/sn state machine over again */ - sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); + sci_change_state(&iphy->sm, SCI_PHY_STARTING); break; default: - dev_warn(sciphy_to_dev(sci_phy), + dev_warn(sciphy_to_dev(iphy), "%s: PHY starting substate machine received " "unexpected event_code %x\n", __func__, event_code); @@ -701,10 +700,10 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, switch (scu_get_event_code(event_code)) { case SCU_EVENT_LINK_FAILURE: /* Link failure change state back to the starting state */ - sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); + sci_change_state(&iphy->sm, SCI_PHY_STARTING); break; default: - dev_warn(sciphy_to_dev(sci_phy), + dev_warn(sciphy_to_dev(iphy), "%s: PHY starting substate machine received unexpected " "event_code %x\n", __func__, @@ -716,7 +715,7 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, switch (scu_get_event_code(event_code)) { case SCU_EVENT_LINK_FAILURE: /* Link failure change state back to the starting state */ - sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); + sci_change_state(&iphy->sm, SCI_PHY_STARTING); break; case SCU_EVENT_SATA_SPINUP_HOLD: /* These events are received every 10ms and are @@ -728,11 +727,11 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, /* There has been a change in the phy type before OOB/SN for the * SATA finished start down the SAS link traning path. */ - scic_sds_phy_start_sas_link_training(sci_phy); + scic_sds_phy_start_sas_link_training(iphy); break; default: - dev_warn(sciphy_to_dev(sci_phy), + dev_warn(sciphy_to_dev(iphy), "%s: PHY starting substate machine received " "unexpected event_code %x\n", __func__, event_code); @@ -744,7 +743,7 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, switch (scu_get_event_code(event_code)) { case SCU_EVENT_LINK_FAILURE: /* Link failure change state back to the starting state */ - sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); + sci_change_state(&iphy->sm, SCI_PHY_STARTING); break; case SCU_EVENT_SATA_SPINUP_HOLD: /* These events might be received since we dont know how many may be in @@ -752,19 +751,19 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, */ break; case SCU_EVENT_SATA_PHY_DETECTED: - sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_SATA; + iphy->protocol = SCIC_SDS_PHY_PROTOCOL_SATA; /* We have received the SATA PHY notification change state */ - sci_change_state(&sci_phy->sm, SCI_PHY_SUB_AWAIT_SATA_SPEED_EN); + sci_change_state(&iphy->sm, SCI_PHY_SUB_AWAIT_SATA_SPEED_EN); break; case SCU_EVENT_SAS_PHY_DETECTED: /* There has been a change in the phy type before OOB/SN for the * SATA finished start down the SAS link traning path. */ - scic_sds_phy_start_sas_link_training(sci_phy); + scic_sds_phy_start_sas_link_training(iphy); break; default: - dev_warn(sciphy_to_dev(sci_phy), + dev_warn(sciphy_to_dev(iphy), "%s: PHY starting substate machine received " "unexpected event_code %x\n", __func__, @@ -783,36 +782,36 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, case SCU_EVENT_SATA_15: case SCU_EVENT_SATA_15_SSC: scic_sds_phy_complete_link_training( - sci_phy, + iphy, SAS_LINK_RATE_1_5_GBPS, SCI_PHY_SUB_AWAIT_SIG_FIS_UF); break; case SCU_EVENT_SATA_30: case SCU_EVENT_SATA_30_SSC: scic_sds_phy_complete_link_training( - sci_phy, + iphy, SAS_LINK_RATE_3_0_GBPS, SCI_PHY_SUB_AWAIT_SIG_FIS_UF); break; case SCU_EVENT_SATA_60: case SCU_EVENT_SATA_60_SSC: scic_sds_phy_complete_link_training( - sci_phy, + iphy, SAS_LINK_RATE_6_0_GBPS, SCI_PHY_SUB_AWAIT_SIG_FIS_UF); break; case SCU_EVENT_LINK_FAILURE: /* Link failure change state back to the starting state */ - sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); + sci_change_state(&iphy->sm, SCI_PHY_STARTING); break; case SCU_EVENT_SAS_PHY_DETECTED: /* * There has been a change in the phy type before OOB/SN for the * SATA finished start down the SAS link traning path. */ - scic_sds_phy_start_sas_link_training(sci_phy); + scic_sds_phy_start_sas_link_training(iphy); break; default: - dev_warn(sciphy_to_dev(sci_phy), + dev_warn(sciphy_to_dev(iphy), "%s: PHY starting substate machine received " "unexpected event_code %x\n", __func__, event_code); @@ -825,16 +824,16 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, switch (scu_get_event_code(event_code)) { case SCU_EVENT_SATA_PHY_DETECTED: /* Backup the state machine */ - sci_change_state(&sci_phy->sm, SCI_PHY_SUB_AWAIT_SATA_SPEED_EN); + sci_change_state(&iphy->sm, SCI_PHY_SUB_AWAIT_SATA_SPEED_EN); break; case SCU_EVENT_LINK_FAILURE: /* Link failure change state back to the starting state */ - sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); + sci_change_state(&iphy->sm, SCI_PHY_STARTING); break; default: - dev_warn(sciphy_to_dev(sci_phy), + dev_warn(sciphy_to_dev(iphy), "%s: PHY starting substate machine received " "unexpected event_code %x\n", __func__, @@ -847,20 +846,20 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, switch (scu_get_event_code(event_code)) { case SCU_EVENT_LINK_FAILURE: /* Link failure change state back to the starting state */ - sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); + sci_change_state(&iphy->sm, SCI_PHY_STARTING); break; case SCU_EVENT_BROADCAST_CHANGE: /* Broadcast change received. Notify the port. */ - if (phy_get_non_dummy_port(sci_phy) != NULL) - scic_sds_port_broadcast_change_received(sci_phy->owning_port, sci_phy); + if (phy_get_non_dummy_port(iphy) != NULL) + scic_sds_port_broadcast_change_received(iphy->owning_port, iphy); else - sci_phy->bcn_received_while_port_unassigned = true; + iphy->bcn_received_while_port_unassigned = true; break; default: - dev_warn(sciphy_to_dev(sci_phy), + dev_warn(sciphy_to_dev(iphy), "%sP SCIC PHY 0x%p ready state machine received " "unexpected event_code %x\n", - __func__, sci_phy, event_code); + __func__, iphy, event_code); return SCI_FAILURE_INVALID_STATE; } return SCI_SUCCESS; @@ -868,30 +867,30 @@ enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy, switch (scu_get_event_code(event_code)) { case SCU_EVENT_HARD_RESET_TRANSMITTED: /* Link failure change state back to the starting state */ - sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); + sci_change_state(&iphy->sm, SCI_PHY_STARTING); break; default: - dev_warn(sciphy_to_dev(sci_phy), + dev_warn(sciphy_to_dev(iphy), "%s: SCIC PHY 0x%p resetting state machine received " "unexpected event_code %x\n", - __func__, sci_phy, event_code); + __func__, iphy, event_code); return SCI_FAILURE_INVALID_STATE; break; } return SCI_SUCCESS; default: - dev_dbg(sciphy_to_dev(sci_phy), + dev_dbg(sciphy_to_dev(iphy), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } } -enum sci_status scic_sds_phy_frame_handler(struct scic_sds_phy *sci_phy, +enum sci_status scic_sds_phy_frame_handler(struct isci_phy *iphy, u32 frame_index) { - enum scic_sds_phy_states state = sci_phy->sm.current_state_id; - struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller; + enum scic_sds_phy_states state = iphy->sm.current_state_id; + struct scic_sds_controller *scic = iphy->owning_port->owning_controller; enum sci_status result; unsigned long flags; @@ -899,7 +898,6 @@ enum sci_status scic_sds_phy_frame_handler(struct scic_sds_phy *sci_phy, case SCI_PHY_SUB_AWAIT_IAF_UF: { u32 *frame_words; struct sas_identify_frame iaf; - struct isci_phy *iphy = sci_phy_to_iphy(sci_phy); result = scic_sds_unsolicited_frame_control_get_header(&scic->uf_control, frame_index, @@ -927,10 +925,10 @@ enum sci_status scic_sds_phy_frame_handler(struct scic_sds_phy *sci_phy, */ state = SCI_PHY_SUB_AWAIT_SAS_POWER; } - sci_change_state(&sci_phy->sm, state); + sci_change_state(&iphy->sm, state); result = SCI_SUCCESS; } else - dev_warn(sciphy_to_dev(sci_phy), + dev_warn(sciphy_to_dev(iphy), "%s: PHY starting substate machine received " "unexpected frame id %x\n", __func__, frame_index); @@ -941,10 +939,9 @@ enum sci_status scic_sds_phy_frame_handler(struct scic_sds_phy *sci_phy, case SCI_PHY_SUB_AWAIT_SIG_FIS_UF: { struct dev_to_host_fis *frame_header; u32 *fis_frame_data; - struct isci_phy *iphy = sci_phy_to_iphy(sci_phy); result = scic_sds_unsolicited_frame_control_get_header( - &(scic_sds_phy_get_controller(sci_phy)->uf_control), + &(scic_sds_phy_get_controller(iphy)->uf_control), frame_index, (void **)&frame_header); @@ -964,11 +961,11 @@ enum sci_status scic_sds_phy_frame_handler(struct scic_sds_phy *sci_phy, spin_unlock_irqrestore(&iphy->sas_phy.frame_rcvd_lock, flags); /* got IAF we can now go to the await spinup semaphore state */ - sci_change_state(&sci_phy->sm, SCI_PHY_SUB_FINAL); + sci_change_state(&iphy->sm, SCI_PHY_SUB_FINAL); result = SCI_SUCCESS; } else - dev_warn(sciphy_to_dev(sci_phy), + dev_warn(sciphy_to_dev(iphy), "%s: PHY starting substate machine received " "unexpected frame id %x\n", __func__, frame_index); @@ -979,7 +976,7 @@ enum sci_status scic_sds_phy_frame_handler(struct scic_sds_phy *sci_phy, return result; } default: - dev_dbg(sciphy_to_dev(sci_phy), + dev_dbg(sciphy_to_dev(iphy), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } @@ -988,77 +985,77 @@ enum sci_status scic_sds_phy_frame_handler(struct scic_sds_phy *sci_phy, static void scic_sds_phy_starting_initial_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); + struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); /* This is just an temporary state go off to the starting state */ - sci_change_state(&sci_phy->sm, SCI_PHY_SUB_AWAIT_OSSP_EN); + sci_change_state(&iphy->sm, SCI_PHY_SUB_AWAIT_OSSP_EN); } static void scic_sds_phy_starting_await_sas_power_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); - struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller; + struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); + struct scic_sds_controller *scic = iphy->owning_port->owning_controller; - scic_sds_controller_power_control_queue_insert(scic, sci_phy); + scic_sds_controller_power_control_queue_insert(scic, iphy); } static void scic_sds_phy_starting_await_sas_power_substate_exit(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); - struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller; + struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); + struct scic_sds_controller *scic = iphy->owning_port->owning_controller; - scic_sds_controller_power_control_queue_remove(scic, sci_phy); + scic_sds_controller_power_control_queue_remove(scic, iphy); } static void scic_sds_phy_starting_await_sata_power_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); - struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller; + struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); + struct scic_sds_controller *scic = iphy->owning_port->owning_controller; - scic_sds_controller_power_control_queue_insert(scic, sci_phy); + scic_sds_controller_power_control_queue_insert(scic, iphy); } static void scic_sds_phy_starting_await_sata_power_substate_exit(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); - struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller; + struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); + struct scic_sds_controller *scic = iphy->owning_port->owning_controller; - scic_sds_controller_power_control_queue_remove(scic, sci_phy); + scic_sds_controller_power_control_queue_remove(scic, iphy); } static void scic_sds_phy_starting_await_sata_phy_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); + struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); - sci_mod_timer(&sci_phy->sata_timer, SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT); + sci_mod_timer(&iphy->sata_timer, SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT); } static void scic_sds_phy_starting_await_sata_phy_substate_exit(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); + struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); - sci_del_timer(&sci_phy->sata_timer); + sci_del_timer(&iphy->sata_timer); } static void scic_sds_phy_starting_await_sata_speed_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); + struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); - sci_mod_timer(&sci_phy->sata_timer, SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT); + sci_mod_timer(&iphy->sata_timer, SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT); } static void scic_sds_phy_starting_await_sata_speed_substate_exit(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); + struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); - sci_del_timer(&sci_phy->sata_timer); + sci_del_timer(&iphy->sata_timer); } static void scic_sds_phy_starting_await_sig_fis_uf_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); + struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); - if (scic_sds_port_link_detected(sci_phy->owning_port, sci_phy)) { + if (scic_sds_port_link_detected(iphy->owning_port, iphy)) { /* * Clear the PE suspend condition so we can actually @@ -1066,79 +1063,79 @@ static void scic_sds_phy_starting_await_sig_fis_uf_substate_enter(struct sci_bas * The hardware will not respond to the XRDY until the PE * suspend condition is cleared. */ - scic_sds_phy_resume(sci_phy); + scic_sds_phy_resume(iphy); - sci_mod_timer(&sci_phy->sata_timer, + sci_mod_timer(&iphy->sata_timer, SCIC_SDS_SIGNATURE_FIS_TIMEOUT); } else - sci_phy->is_in_link_training = false; + iphy->is_in_link_training = false; } static void scic_sds_phy_starting_await_sig_fis_uf_substate_exit(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); + struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); - sci_del_timer(&sci_phy->sata_timer); + sci_del_timer(&iphy->sata_timer); } static void scic_sds_phy_starting_final_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); + struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); /* State machine has run to completion so exit out and change * the base state machine to the ready state */ - sci_change_state(&sci_phy->sm, SCI_PHY_READY); + sci_change_state(&iphy->sm, SCI_PHY_READY); } /** * - * @sci_phy: This is the struct scic_sds_phy object to stop. + * @sci_phy: This is the struct isci_phy object to stop. * - * This method will stop the struct scic_sds_phy object. This does not reset the + * This method will stop the struct isci_phy object. This does not reset the * protocol engine it just suspends it and places it in a state where it will * not cause the end device to power up. none */ static void scu_link_layer_stop_protocol_engine( - struct scic_sds_phy *sci_phy) + struct isci_phy *iphy) { u32 scu_sas_pcfg_value; u32 enable_spinup_value; /* Suspend the protocol engine and place it in a sata spinup hold state */ scu_sas_pcfg_value = - readl(&sci_phy->link_layer_registers->phy_configuration); + readl(&iphy->link_layer_registers->phy_configuration); scu_sas_pcfg_value |= (SCU_SAS_PCFG_GEN_BIT(OOB_RESET) | SCU_SAS_PCFG_GEN_BIT(SUSPEND_PROTOCOL_ENGINE) | SCU_SAS_PCFG_GEN_BIT(SATA_SPINUP_HOLD)); writel(scu_sas_pcfg_value, - &sci_phy->link_layer_registers->phy_configuration); + &iphy->link_layer_registers->phy_configuration); /* Disable the notify enable spinup primitives */ - enable_spinup_value = readl(&sci_phy->link_layer_registers->notify_enable_spinup_control); + enable_spinup_value = readl(&iphy->link_layer_registers->notify_enable_spinup_control); enable_spinup_value &= ~SCU_ENSPINUP_GEN_BIT(ENABLE); - writel(enable_spinup_value, &sci_phy->link_layer_registers->notify_enable_spinup_control); + writel(enable_spinup_value, &iphy->link_layer_registers->notify_enable_spinup_control); } /** * * - * This method will start the OOB/SN state machine for this struct scic_sds_phy object. + * This method will start the OOB/SN state machine for this struct isci_phy object. */ static void scu_link_layer_start_oob( - struct scic_sds_phy *sci_phy) + struct isci_phy *iphy) { u32 scu_sas_pcfg_value; scu_sas_pcfg_value = - readl(&sci_phy->link_layer_registers->phy_configuration); + readl(&iphy->link_layer_registers->phy_configuration); scu_sas_pcfg_value |= SCU_SAS_PCFG_GEN_BIT(OOB_ENABLE); scu_sas_pcfg_value &= ~(SCU_SAS_PCFG_GEN_BIT(OOB_RESET) | SCU_SAS_PCFG_GEN_BIT(HARD_RESET)); writel(scu_sas_pcfg_value, - &sci_phy->link_layer_registers->phy_configuration); + &iphy->link_layer_registers->phy_configuration); } /** @@ -1150,7 +1147,7 @@ static void scu_link_layer_start_oob( * hard reset bit set. */ static void scu_link_layer_tx_hard_reset( - struct scic_sds_phy *sci_phy) + struct isci_phy *iphy) { u32 phy_configuration_value; @@ -1158,91 +1155,91 @@ static void scu_link_layer_tx_hard_reset( * SAS Phys must wait for the HARD_RESET_TX event notification to transition * to the starting state. */ phy_configuration_value = - readl(&sci_phy->link_layer_registers->phy_configuration); + readl(&iphy->link_layer_registers->phy_configuration); phy_configuration_value |= (SCU_SAS_PCFG_GEN_BIT(HARD_RESET) | SCU_SAS_PCFG_GEN_BIT(OOB_RESET)); writel(phy_configuration_value, - &sci_phy->link_layer_registers->phy_configuration); + &iphy->link_layer_registers->phy_configuration); /* Now take the OOB state machine out of reset */ phy_configuration_value |= SCU_SAS_PCFG_GEN_BIT(OOB_ENABLE); phy_configuration_value &= ~SCU_SAS_PCFG_GEN_BIT(OOB_RESET); writel(phy_configuration_value, - &sci_phy->link_layer_registers->phy_configuration); + &iphy->link_layer_registers->phy_configuration); } static void scic_sds_phy_stopped_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); + struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); /* * @todo We need to get to the controller to place this PE in a * reset state */ - sci_del_timer(&sci_phy->sata_timer); + sci_del_timer(&iphy->sata_timer); - scu_link_layer_stop_protocol_engine(sci_phy); + scu_link_layer_stop_protocol_engine(iphy); - if (sci_phy->sm.previous_state_id != SCI_PHY_INITIAL) - scic_sds_controller_link_down(scic_sds_phy_get_controller(sci_phy), - phy_get_non_dummy_port(sci_phy), - sci_phy); + if (iphy->sm.previous_state_id != SCI_PHY_INITIAL) + scic_sds_controller_link_down(scic_sds_phy_get_controller(iphy), + phy_get_non_dummy_port(iphy), + iphy); } static void scic_sds_phy_starting_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); + struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); - scu_link_layer_stop_protocol_engine(sci_phy); - scu_link_layer_start_oob(sci_phy); + scu_link_layer_stop_protocol_engine(iphy); + scu_link_layer_start_oob(iphy); /* We don't know what kind of phy we are going to be just yet */ - sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_UNKNOWN; - sci_phy->bcn_received_while_port_unassigned = false; + iphy->protocol = SCIC_SDS_PHY_PROTOCOL_UNKNOWN; + iphy->bcn_received_while_port_unassigned = false; - if (sci_phy->sm.previous_state_id == SCI_PHY_READY) - scic_sds_controller_link_down(scic_sds_phy_get_controller(sci_phy), - phy_get_non_dummy_port(sci_phy), - sci_phy); + if (iphy->sm.previous_state_id == SCI_PHY_READY) + scic_sds_controller_link_down(scic_sds_phy_get_controller(iphy), + phy_get_non_dummy_port(iphy), + iphy); - sci_change_state(&sci_phy->sm, SCI_PHY_SUB_INITIAL); + sci_change_state(&iphy->sm, SCI_PHY_SUB_INITIAL); } static void scic_sds_phy_ready_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); + struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); - scic_sds_controller_link_up(scic_sds_phy_get_controller(sci_phy), - phy_get_non_dummy_port(sci_phy), - sci_phy); + scic_sds_controller_link_up(scic_sds_phy_get_controller(iphy), + phy_get_non_dummy_port(iphy), + iphy); } static void scic_sds_phy_ready_state_exit(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); + struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); - scic_sds_phy_suspend(sci_phy); + scic_sds_phy_suspend(iphy); } static void scic_sds_phy_resetting_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_phy *sci_phy = container_of(sm, typeof(*sci_phy), sm); + struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); /* The phy is being reset, therefore deactivate it from the port. In * the resetting state we don't notify the user regarding link up and * link down notifications */ - scic_sds_port_deactivate_phy(sci_phy->owning_port, sci_phy, false); + scic_sds_port_deactivate_phy(iphy->owning_port, iphy, false); - if (sci_phy->protocol == SCIC_SDS_PHY_PROTOCOL_SAS) { - scu_link_layer_tx_hard_reset(sci_phy); + if (iphy->protocol == SCIC_SDS_PHY_PROTOCOL_SAS) { + scu_link_layer_tx_hard_reset(iphy); } else { /* The SCU does not need to have a discrete reset state so * just go back to the starting state. */ - sci_change_state(&sci_phy->sm, SCI_PHY_STARTING); + sci_change_state(&iphy->sm, SCI_PHY_STARTING); } } @@ -1293,21 +1290,21 @@ static const struct sci_base_state scic_sds_phy_state_table[] = { [SCI_PHY_FINAL] = { }, }; -void scic_sds_phy_construct(struct scic_sds_phy *sci_phy, +void scic_sds_phy_construct(struct isci_phy *iphy, struct scic_sds_port *owning_port, u8 phy_index) { - sci_init_sm(&sci_phy->sm, scic_sds_phy_state_table, SCI_PHY_INITIAL); + sci_init_sm(&iphy->sm, scic_sds_phy_state_table, SCI_PHY_INITIAL); /* Copy the rest of the input data to our locals */ - sci_phy->owning_port = owning_port; - sci_phy->phy_index = phy_index; - sci_phy->bcn_received_while_port_unassigned = false; - sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_UNKNOWN; - sci_phy->link_layer_registers = NULL; - sci_phy->max_negotiated_speed = SAS_LINK_RATE_UNKNOWN; + iphy->owning_port = owning_port; + iphy->phy_index = phy_index; + iphy->bcn_received_while_port_unassigned = false; + iphy->protocol = SCIC_SDS_PHY_PROTOCOL_UNKNOWN; + iphy->link_layer_registers = NULL; + iphy->max_negotiated_speed = SAS_LINK_RATE_UNKNOWN; /* Create the SIGNATURE FIS Timeout timer for this phy */ - sci_init_timer(&sci_phy->sata_timer, phy_sata_timeout); + sci_init_timer(&iphy->sata_timer, phy_sata_timeout); } void isci_phy_init(struct isci_phy *iphy, struct isci_host *ihost, int index) @@ -1368,14 +1365,14 @@ int isci_phy_control(struct asd_sas_phy *sas_phy, switch (func) { case PHY_FUNC_DISABLE: spin_lock_irqsave(&ihost->scic_lock, flags); - scic_sds_phy_stop(&iphy->sci); + scic_sds_phy_stop(iphy); spin_unlock_irqrestore(&ihost->scic_lock, flags); break; case PHY_FUNC_LINK_RESET: spin_lock_irqsave(&ihost->scic_lock, flags); - scic_sds_phy_stop(&iphy->sci); - scic_sds_phy_start(&iphy->sci); + scic_sds_phy_stop(iphy); + scic_sds_phy_start(iphy); spin_unlock_irqrestore(&ihost->scic_lock, flags); break; diff --git a/drivers/scsi/isci/phy.h b/drivers/scsi/isci/phy.h index 97ebee16f4b..345fbeacb5c 100644 --- a/drivers/scsi/isci/phy.h +++ b/drivers/scsi/isci/phy.h @@ -84,102 +84,40 @@ enum scic_sds_phy_protocol { }; /** - * struct scic_sds_phy - This structure contains or references all of the data - * necessary to represent the core phy object and SCU harware protocol - * engine. - * - * + * isci_phy - hba local phy infrastructure + * @sm: + * @protocol: attached device protocol + * @phy_index: physical index relative to the controller (0-3) + * @bcn_received_while_port_unassigned: bcn to report after port association + * @sata_timer: timeout SATA signature FIS arrival */ -struct scic_sds_phy { - /** - * This field contains the information for the base phy state machine. - */ +struct isci_phy { struct sci_base_state_machine sm; - - /** - * This field specifies the port object that owns/contains this phy. - */ struct scic_sds_port *owning_port; - - /** - * This field indicates whether the phy supports 1.5 Gb/s, 3.0 Gb/s, - * or 6.0 Gb/s operation. - */ enum sas_linkrate max_negotiated_speed; - - /** - * This member specifies the protocol being utilized on this phy. This - * field contains a legitamite value once the PHY has link trained with - * a remote phy. - */ enum scic_sds_phy_protocol protocol; - - /** - * This field specifies the index with which this phy is associated (0-3). - */ u8 phy_index; - - /** - * This member indicates if this particular PHY has received a BCN while - * it had no port assignement. This BCN will be reported once the phy is - * assigned to a port. - */ bool bcn_received_while_port_unassigned; - - /** - * This field indicates if this PHY is currently in the process of - * link training (i.e. it has started OOB, but has yet to perform - * IAF exchange/Signature FIS reception). - */ bool is_in_link_training; - - /** - * Timer to detect when a signature FIS timeout has occurred. The - * signature FIS is the first FIS sent by an attached SATA device - * after OOB/SN. - */ - struct sci_timer sata_timer; - - /** - * This field is the pointer to the transport layer register for the SCU - * hardware. - */ + struct sci_timer sata_timer; struct scu_transport_layer_registers __iomem *transport_layer_registers; - - /** - * This field points to the link layer register set within the SCU. - */ struct scu_link_layer_registers __iomem *link_layer_registers; - -}; - - -struct isci_phy { - struct scic_sds_phy sci; struct asd_sas_phy sas_phy; struct isci_port *isci_port; u8 sas_addr[SAS_ADDR_SIZE]; - union { struct sas_identify_frame iaf; struct dev_to_host_fis fis; } frame_rcvd; }; -static inline struct isci_phy *to_isci_phy(struct asd_sas_phy *sas_phy) +static inline struct isci_phy *to_iphy(struct asd_sas_phy *sas_phy) { struct isci_phy *iphy = container_of(sas_phy, typeof(*iphy), sas_phy); return iphy; } -static inline struct isci_phy *sci_phy_to_iphy(struct scic_sds_phy *sci_phy) -{ - struct isci_phy *iphy = container_of(sci_phy, typeof(*iphy), sci); - - return iphy; -} - struct scic_phy_cap { union { struct { @@ -520,61 +458,61 @@ enum scic_sds_phy_states { (scic_sds_port_get_controller((phy)->owning_port)) void scic_sds_phy_construct( - struct scic_sds_phy *this_phy, + struct isci_phy *iphy, struct scic_sds_port *owning_port, u8 phy_index); -struct scic_sds_port *phy_get_non_dummy_port(struct scic_sds_phy *sci_phy); +struct scic_sds_port *phy_get_non_dummy_port(struct isci_phy *iphy); void scic_sds_phy_set_port( - struct scic_sds_phy *this_phy, + struct isci_phy *iphy, struct scic_sds_port *owning_port); enum sci_status scic_sds_phy_initialize( - struct scic_sds_phy *this_phy, + struct isci_phy *iphy, struct scu_transport_layer_registers __iomem *transport_layer_registers, struct scu_link_layer_registers __iomem *link_layer_registers); enum sci_status scic_sds_phy_start( - struct scic_sds_phy *this_phy); + struct isci_phy *iphy); enum sci_status scic_sds_phy_stop( - struct scic_sds_phy *this_phy); + struct isci_phy *iphy); enum sci_status scic_sds_phy_reset( - struct scic_sds_phy *this_phy); + struct isci_phy *iphy); void scic_sds_phy_resume( - struct scic_sds_phy *this_phy); + struct isci_phy *iphy); void scic_sds_phy_setup_transport( - struct scic_sds_phy *this_phy, + struct isci_phy *iphy, u32 device_id); enum sci_status scic_sds_phy_event_handler( - struct scic_sds_phy *this_phy, + struct isci_phy *iphy, u32 event_code); enum sci_status scic_sds_phy_frame_handler( - struct scic_sds_phy *this_phy, + struct isci_phy *iphy, u32 frame_index); enum sci_status scic_sds_phy_consume_power_handler( - struct scic_sds_phy *this_phy); + struct isci_phy *iphy); void scic_sds_phy_get_sas_address( - struct scic_sds_phy *this_phy, + struct isci_phy *iphy, struct sci_sas_address *sas_address); void scic_sds_phy_get_attached_sas_address( - struct scic_sds_phy *this_phy, + struct isci_phy *iphy, struct sci_sas_address *sas_address); struct scic_phy_proto; void scic_sds_phy_get_protocols( - struct scic_sds_phy *sci_phy, + struct isci_phy *iphy, struct scic_phy_proto *protocols); -enum sas_linkrate sci_phy_linkrate(struct scic_sds_phy *sci_phy); +enum sas_linkrate sci_phy_linkrate(struct isci_phy *iphy); struct isci_host; void isci_phy_init(struct isci_phy *iphy, struct isci_host *ihost, int index); diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index bd091549b4f..d53c0b1748e 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -154,17 +154,17 @@ static enum sci_status scic_port_get_properties(struct scic_sds_port *port, static void scic_port_bcn_enable(struct scic_sds_port *sci_port) { - struct scic_sds_phy *sci_phy; + struct isci_phy *iphy; u32 val; int i; for (i = 0; i < ARRAY_SIZE(sci_port->phy_table); i++) { - sci_phy = sci_port->phy_table[i]; - if (!sci_phy) + iphy = sci_port->phy_table[i]; + if (!iphy) continue; - val = readl(&sci_phy->link_layer_registers->link_layer_control); + val = readl(&iphy->link_layer_registers->link_layer_control); /* clear the bit by writing 1. */ - writel(val, &sci_phy->link_layer_registers->link_layer_control); + writel(val, &iphy->link_layer_registers->link_layer_control); } } @@ -180,10 +180,9 @@ void isci_port_bcn_enable(struct isci_host *ihost, struct isci_port *iport) return; for (i = 0; i < ARRAY_SIZE(iport->sci.phy_table); i++) { - struct scic_sds_phy *sci_phy = iport->sci.phy_table[i]; - struct isci_phy *iphy = sci_phy_to_iphy(sci_phy); + struct isci_phy *iphy = iport->sci.phy_table[i]; - if (!sci_phy) + if (!iphy) continue; ihost->sas_ha.notify_port_event(&iphy->sas_phy, @@ -194,9 +193,8 @@ void isci_port_bcn_enable(struct isci_host *ihost, struct isci_port *iport) void isci_port_bc_change_received(struct isci_host *ihost, struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) + struct isci_phy *iphy) { - struct isci_phy *iphy = sci_phy_to_iphy(sci_phy); struct isci_port *iport = iphy->isci_port; if (iport && test_bit(IPORT_BCN_BLOCKED, &iport->flags)) { @@ -219,33 +217,32 @@ void isci_port_bc_change_received(struct isci_host *ihost, static void isci_port_link_up(struct isci_host *isci_host, struct scic_sds_port *port, - struct scic_sds_phy *phy) + struct isci_phy *iphy) { unsigned long flags; struct scic_port_properties properties; - struct isci_phy *isci_phy = sci_phy_to_iphy(phy); struct isci_port *isci_port = sci_port_to_iport(port); unsigned long success = true; - BUG_ON(isci_phy->isci_port != NULL); + BUG_ON(iphy->isci_port != NULL); - isci_phy->isci_port = isci_port; + iphy->isci_port = isci_port; dev_dbg(&isci_host->pdev->dev, "%s: isci_port = %p\n", __func__, isci_port); - spin_lock_irqsave(&isci_phy->sas_phy.frame_rcvd_lock, flags); + spin_lock_irqsave(&iphy->sas_phy.frame_rcvd_lock, flags); - isci_port_change_state(isci_phy->isci_port, isci_starting); + isci_port_change_state(iphy->isci_port, isci_starting); scic_port_get_properties(port, &properties); - if (phy->protocol == SCIC_SDS_PHY_PROTOCOL_SATA) { + if (iphy->protocol == SCIC_SDS_PHY_PROTOCOL_SATA) { u64 attached_sas_address; - isci_phy->sas_phy.oob_mode = SATA_OOB_MODE; - isci_phy->sas_phy.frame_rcvd_size = sizeof(struct dev_to_host_fis); + iphy->sas_phy.oob_mode = SATA_OOB_MODE; + iphy->sas_phy.frame_rcvd_size = sizeof(struct dev_to_host_fis); /* * For direct-attached SATA devices, the SCI core will @@ -259,28 +256,28 @@ static void isci_port_link_up(struct isci_host *isci_host, attached_sas_address |= properties.remote.sas_address.low; swab64s(&attached_sas_address); - memcpy(&isci_phy->sas_phy.attached_sas_addr, + memcpy(&iphy->sas_phy.attached_sas_addr, &attached_sas_address, sizeof(attached_sas_address)); - } else if (phy->protocol == SCIC_SDS_PHY_PROTOCOL_SAS) { - isci_phy->sas_phy.oob_mode = SAS_OOB_MODE; - isci_phy->sas_phy.frame_rcvd_size = sizeof(struct sas_identify_frame); + } else if (iphy->protocol == SCIC_SDS_PHY_PROTOCOL_SAS) { + iphy->sas_phy.oob_mode = SAS_OOB_MODE; + iphy->sas_phy.frame_rcvd_size = sizeof(struct sas_identify_frame); /* Copy the attached SAS address from the IAF */ - memcpy(isci_phy->sas_phy.attached_sas_addr, - isci_phy->frame_rcvd.iaf.sas_addr, SAS_ADDR_SIZE); + memcpy(iphy->sas_phy.attached_sas_addr, + iphy->frame_rcvd.iaf.sas_addr, SAS_ADDR_SIZE); } else { dev_err(&isci_host->pdev->dev, "%s: unkown target\n", __func__); success = false; } - isci_phy->sas_phy.phy->negotiated_linkrate = sci_phy_linkrate(phy); + iphy->sas_phy.phy->negotiated_linkrate = sci_phy_linkrate(iphy); - spin_unlock_irqrestore(&isci_phy->sas_phy.frame_rcvd_lock, flags); + spin_unlock_irqrestore(&iphy->sas_phy.frame_rcvd_lock, flags); /* Notify libsas that we have an address frame, if indeed * we've found an SSP, SMP, or STP target */ if (success) - isci_host->sas_ha.notify_port_event(&isci_phy->sas_phy, + isci_host->sas_ha.notify_port_event(&iphy->sas_phy, PORTE_BYTES_DMAED); } @@ -495,11 +492,7 @@ static bool scic_sds_port_is_phy_mask_valid( return false; } -/** - * - * @sci_port: This parameter specifies the port from which to return a - * connected phy. - * +/* * This method retrieves a currently active (i.e. connected) phy contained in * the port. Currently, the lowest order phy that is connected is returned. * This method returns a pointer to a SCIS_SDS_PHY object. NULL This value is @@ -507,58 +500,38 @@ static bool scic_sds_port_is_phy_mask_valid( * point) phys contained in the port. All other values specify a struct scic_sds_phy * object that is active in the port. */ -static struct scic_sds_phy *scic_sds_port_get_a_connected_phy( - struct scic_sds_port *sci_port - ) { +static struct isci_phy *scic_sds_port_get_a_connected_phy(struct scic_sds_port *sci_port) +{ u32 index; - struct scic_sds_phy *phy; + struct isci_phy *iphy; for (index = 0; index < SCI_MAX_PHYS; index++) { - /* - * Ensure that the phy is both part of the port and currently - * connected to the remote end-point. */ - phy = sci_port->phy_table[index]; - if ( - (phy != NULL) - && scic_sds_port_active_phy(sci_port, phy) - ) { - return phy; - } + /* Ensure that the phy is both part of the port and currently + * connected to the remote end-point. + */ + iphy = sci_port->phy_table[index]; + if (iphy && scic_sds_port_active_phy(sci_port, iphy)) + return iphy; } return NULL; } -/** - * scic_sds_port_set_phy() - - * @out]: port The port object to which the phy assignement is being made. - * @out]: phy The phy which is being assigned to the port. - * - * This method attempts to make the assignment of the phy to the port. If - * successful the phy is assigned to the ports phy table. bool true if the phy - * assignment can be made. false if the phy assignement can not be made. This - * is a functional test that only fails if the phy is currently assigned to a - * different port. - */ -static enum sci_status scic_sds_port_set_phy( - struct scic_sds_port *port, - struct scic_sds_phy *phy) +static enum sci_status scic_sds_port_set_phy(struct scic_sds_port *port, struct isci_phy *iphy) { - /* - * Check to see if we can add this phy to a port + /* Check to see if we can add this phy to a port * that means that the phy is not part of a port and that the port does - * not already have a phy assinged to the phy index. */ - if ( - (port->phy_table[phy->phy_index] == NULL) - && (phy_get_non_dummy_port(phy) == NULL) - && scic_sds_port_is_valid_phy_assignment(port, phy->phy_index) - ) { - /* - * Phy is being added in the stopped state so we are in MPC mode - * make logical port index = physical port index */ + * not already have a phy assinged to the phy index. + */ + if (!port->phy_table[iphy->phy_index] && + !phy_get_non_dummy_port(iphy) && + scic_sds_port_is_valid_phy_assignment(port, iphy->phy_index)) { + /* Phy is being added in the stopped state so we are in MPC mode + * make logical port index = physical port index + */ port->logical_port_index = port->physical_port_index; - port->phy_table[phy->phy_index] = phy; - scic_sds_phy_set_port(phy, port); + port->phy_table[iphy->phy_index] = iphy; + scic_sds_phy_set_port(iphy, port); return SCI_SUCCESS; } @@ -566,28 +539,18 @@ static enum sci_status scic_sds_port_set_phy( return SCI_FAILURE; } -/** - * scic_sds_port_clear_phy() - - * @out]: port The port from which the phy is being cleared. - * @out]: phy The phy being cleared from the port. - * - * This method will clear the phy assigned to this port. This method fails if - * this phy is not currently assinged to this port. bool true if the phy is - * removed from the port. false if this phy is not assined to this port. - */ -static enum sci_status scic_sds_port_clear_phy( - struct scic_sds_port *port, - struct scic_sds_phy *phy) +static enum sci_status scic_sds_port_clear_phy(struct scic_sds_port *port, + struct isci_phy *iphy) { /* Make sure that this phy is part of this port */ - if (port->phy_table[phy->phy_index] == phy && - phy_get_non_dummy_port(phy) == port) { + if (port->phy_table[iphy->phy_index] == iphy && + phy_get_non_dummy_port(iphy) == port) { struct scic_sds_controller *scic = port->owning_controller; struct isci_host *ihost = scic_to_ihost(scic); /* Yep it is assigned to this port so remove it */ - scic_sds_phy_set_port(phy, &ihost->ports[SCI_MAX_PORTS].sci); - port->phy_table[phy->phy_index] = NULL; + scic_sds_phy_set_port(iphy, &ihost->ports[SCI_MAX_PORTS].sci); + port->phy_table[iphy->phy_index] = NULL; return SCI_SUCCESS; } @@ -634,20 +597,20 @@ void scic_sds_port_get_attached_sas_address( struct scic_sds_port *sci_port, struct sci_sas_address *sas_address) { - struct scic_sds_phy *sci_phy; + struct isci_phy *iphy; /* * Ensure that the phy is both part of the port and currently * connected to the remote end-point. */ - sci_phy = scic_sds_port_get_a_connected_phy(sci_port); - if (sci_phy) { - if (sci_phy->protocol != SCIC_SDS_PHY_PROTOCOL_SATA) { - scic_sds_phy_get_attached_sas_address(sci_phy, + iphy = scic_sds_port_get_a_connected_phy(sci_port); + if (iphy) { + if (iphy->protocol != SCIC_SDS_PHY_PROTOCOL_SATA) { + scic_sds_phy_get_attached_sas_address(iphy, sas_address); } else { - scic_sds_phy_get_sas_address(sci_phy, sas_address); - sas_address->low += sci_phy->phy_index; + scic_sds_phy_get_sas_address(iphy, sas_address); + sas_address->low += iphy->phy_index; } } else { sas_address->high = 0; @@ -787,39 +750,38 @@ void scic_sds_port_setup_transports( * notifying the user that the link is up. none */ static void scic_sds_port_activate_phy(struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy, + struct isci_phy *iphy, bool do_notify_user) { struct scic_sds_controller *scic = sci_port->owning_controller; struct isci_host *ihost = scic_to_ihost(scic); - if (sci_phy->protocol != SCIC_SDS_PHY_PROTOCOL_SATA) - scic_sds_phy_resume(sci_phy); + if (iphy->protocol != SCIC_SDS_PHY_PROTOCOL_SATA) + scic_sds_phy_resume(iphy); - sci_port->active_phy_mask |= 1 << sci_phy->phy_index; + sci_port->active_phy_mask |= 1 << iphy->phy_index; - scic_sds_controller_clear_invalid_phy(scic, sci_phy); + scic_sds_controller_clear_invalid_phy(scic, iphy); if (do_notify_user == true) - isci_port_link_up(ihost, sci_port, sci_phy); + isci_port_link_up(ihost, sci_port, iphy); } void scic_sds_port_deactivate_phy(struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy, + struct isci_phy *iphy, bool do_notify_user) { struct scic_sds_controller *scic = scic_sds_port_get_controller(sci_port); struct isci_port *iport = sci_port_to_iport(sci_port); struct isci_host *ihost = scic_to_ihost(scic); - struct isci_phy *iphy = sci_phy_to_iphy(sci_phy); - sci_port->active_phy_mask &= ~(1 << sci_phy->phy_index); + sci_port->active_phy_mask &= ~(1 << iphy->phy_index); - sci_phy->max_negotiated_speed = SAS_LINK_RATE_UNKNOWN; + iphy->max_negotiated_speed = SAS_LINK_RATE_UNKNOWN; /* Re-assign the phy back to the LP as if it were a narrow port */ - writel(sci_phy->phy_index, - &sci_port->port_pe_configuration_register[sci_phy->phy_index]); + writel(iphy->phy_index, + &sci_port->port_pe_configuration_register[iphy->phy_index]); if (do_notify_user == true) isci_port_link_down(ihost, iphy, iport); @@ -834,7 +796,7 @@ void scic_sds_port_deactivate_phy(struct scic_sds_port *sci_port, * this port object. None */ static void scic_sds_port_invalid_link_up(struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) + struct isci_phy *iphy) { struct scic_sds_controller *scic = sci_port->owning_controller; @@ -843,8 +805,8 @@ static void scic_sds_port_invalid_link_up(struct scic_sds_port *sci_port, * not go ahead and tell the SCI_USER that we have discovered an * invalid link. */ - if ((scic->invalid_phy_mask & (1 << sci_phy->phy_index)) == 0) { - scic_sds_controller_set_invalid_phy(scic, sci_phy); + if ((scic->invalid_phy_mask & (1 << iphy->phy_index)) == 0) { + scic_sds_controller_set_invalid_phy(scic, iphy); dev_warn(&scic_to_ihost(scic)->pdev->dev, "Invalid link up!\n"); } } @@ -879,7 +841,7 @@ static void port_state_machine_change(struct scic_sds_port *sci_port, /** * scic_sds_port_general_link_up_handler - phy can be assigned to port? * @sci_port: scic_sds_port object for which has a phy that has gone link up. - * @sci_phy: This is the struct scic_sds_phy object that has gone link up. + * @sci_phy: This is the struct isci_phy object that has gone link up. * @do_notify_user: This parameter specifies whether to inform the user (via * scic_cb_port_link_up()) as to the fact that a new phy as become ready. * @@ -890,14 +852,14 @@ static void port_state_machine_change(struct scic_sds_port *sci_port, * the same port. none */ static void scic_sds_port_general_link_up_handler(struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy, + struct isci_phy *iphy, bool do_notify_user) { struct sci_sas_address port_sas_address; struct sci_sas_address phy_sas_address; scic_sds_port_get_attached_sas_address(sci_port, &port_sas_address); - scic_sds_phy_get_attached_sas_address(sci_phy, &phy_sas_address); + scic_sds_phy_get_attached_sas_address(iphy, &phy_sas_address); /* If the SAS address of the new phy matches the SAS address of * other phys in the port OR this is the first phy in the port, @@ -909,11 +871,11 @@ static void scic_sds_port_general_link_up_handler(struct scic_sds_port *sci_port sci_port->active_phy_mask == 0) { struct sci_base_state_machine *sm = &sci_port->sm; - scic_sds_port_activate_phy(sci_port, sci_phy, do_notify_user); + scic_sds_port_activate_phy(sci_port, iphy, do_notify_user); if (sm->current_state_id == SCI_PORT_RESETTING) port_state_machine_change(sci_port, SCI_PORT_READY); } else - scic_sds_port_invalid_link_up(sci_port, sci_phy); + scic_sds_port_invalid_link_up(sci_port, iphy); } @@ -957,12 +919,12 @@ static bool scic_sds_port_is_wide(struct scic_sds_port *sci_port) */ bool scic_sds_port_link_detected( struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) + struct isci_phy *iphy) { if ((sci_port->logical_port_index != SCIC_SDS_DUMMY_PORT) && - (sci_phy->protocol == SCIC_SDS_PHY_PROTOCOL_SATA) && + (iphy->protocol == SCIC_SDS_PHY_PROTOCOL_SATA) && scic_sds_port_is_wide(sci_port)) { - scic_sds_port_invalid_link_up(sci_port, sci_phy); + scic_sds_port_invalid_link_up(sci_port, iphy); return false; } @@ -1045,47 +1007,26 @@ static void scic_sds_port_update_viit_entry(struct scic_sds_port *sci_port) &sci_port->viit_registers->status); } -/** - * This method returns the maximum allowed speed for data transfers on this - * port. This maximum allowed speed evaluates to the maximum speed of the - * slowest phy in the port. - * @sci_port: This parameter specifies the port for which to retrieve the - * maximum allowed speed. - * - * This method returns the maximum negotiated speed of the slowest phy in the - * port. - */ -enum sas_linkrate scic_sds_port_get_max_allowed_speed( - struct scic_sds_port *sci_port) +enum sas_linkrate scic_sds_port_get_max_allowed_speed(struct scic_sds_port *sci_port) { u16 index; + struct isci_phy *iphy; enum sas_linkrate max_allowed_speed = SAS_LINK_RATE_6_0_GBPS; - struct scic_sds_phy *phy = NULL; /* * Loop through all of the phys in this port and find the phy with the * lowest maximum link rate. */ for (index = 0; index < SCI_MAX_PHYS; index++) { - phy = sci_port->phy_table[index]; - if ( - (phy != NULL) - && (scic_sds_port_active_phy(sci_port, phy) == true) - && (phy->max_negotiated_speed < max_allowed_speed) - ) - max_allowed_speed = phy->max_negotiated_speed; + iphy = sci_port->phy_table[index]; + if (iphy && scic_sds_port_active_phy(sci_port, iphy) && + iphy->max_negotiated_speed < max_allowed_speed) + max_allowed_speed = iphy->max_negotiated_speed; } return max_allowed_speed; } -/** - * - * @sci_port: This is the struct scic_sds_port object to suspend. - * - * This method will susped the port task scheduler for this port object. none - */ -static void -scic_sds_port_suspend_port_task_scheduler(struct scic_sds_port *port) +static void scic_sds_port_suspend_port_task_scheduler(struct scic_sds_port *port) { u32 pts_control_value; @@ -1377,7 +1318,7 @@ enum sci_status scic_sds_port_stop(struct scic_sds_port *sci_port) static enum sci_status scic_port_hard_reset(struct scic_sds_port *sci_port, u32 timeout) { enum sci_status status = SCI_FAILURE_INVALID_PHY; - struct scic_sds_phy *selected_phy = NULL; + struct isci_phy *iphy = NULL; enum scic_sds_port_states state; u32 phy_index; @@ -1389,22 +1330,21 @@ static enum sci_status scic_port_hard_reset(struct scic_sds_port *sci_port, u32 } /* Select a phy on which we can send the hard reset request. */ - for (phy_index = 0; phy_index < SCI_MAX_PHYS && !selected_phy; phy_index++) { - selected_phy = sci_port->phy_table[phy_index]; - if (selected_phy && - !scic_sds_port_active_phy(sci_port, selected_phy)) { + for (phy_index = 0; phy_index < SCI_MAX_PHYS && !iphy; phy_index++) { + iphy = sci_port->phy_table[phy_index]; + if (iphy && !scic_sds_port_active_phy(sci_port, iphy)) { /* * We found a phy but it is not ready select * different phy */ - selected_phy = NULL; + iphy = NULL; } } /* If we have a phy then go ahead and start the reset procedure */ - if (!selected_phy) + if (!iphy) return status; - status = scic_sds_phy_reset(selected_phy); + status = scic_sds_phy_reset(iphy); if (status != SCI_SUCCESS) return status; @@ -1412,8 +1352,7 @@ static enum sci_status scic_port_hard_reset(struct scic_sds_port *sci_port, u32 sci_mod_timer(&sci_port->timer, timeout); sci_port->not_ready_reason = SCIC_PORT_NOT_READY_HARD_RESET_REQUESTED; - port_state_machine_change(sci_port, - SCI_PORT_RESETTING); + port_state_machine_change(sci_port, SCI_PORT_RESETTING); return SCI_SUCCESS; } @@ -1427,7 +1366,7 @@ static enum sci_status scic_port_hard_reset(struct scic_sds_port *sci_port, u32 * status is a failure to add the phy to the port. */ enum sci_status scic_sds_port_add_phy(struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) + struct isci_phy *iphy) { enum sci_status status; enum scic_sds_port_states state; @@ -1446,32 +1385,32 @@ enum sci_status scic_sds_port_add_phy(struct scic_sds_port *sci_port, /* Make sure that the PHY SAS Address matches the SAS Address * for this port */ - scic_sds_phy_get_sas_address(sci_phy, &phy_sas_address); + scic_sds_phy_get_sas_address(iphy, &phy_sas_address); if (port_sas_address.high != phy_sas_address.high || port_sas_address.low != phy_sas_address.low) return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; } - return scic_sds_port_set_phy(sci_port, sci_phy); + return scic_sds_port_set_phy(sci_port, iphy); } case SCI_PORT_SUB_WAITING: case SCI_PORT_SUB_OPERATIONAL: - status = scic_sds_port_set_phy(sci_port, sci_phy); + status = scic_sds_port_set_phy(sci_port, iphy); if (status != SCI_SUCCESS) return status; - scic_sds_port_general_link_up_handler(sci_port, sci_phy, true); + scic_sds_port_general_link_up_handler(sci_port, iphy, true); sci_port->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; port_state_machine_change(sci_port, SCI_PORT_SUB_CONFIGURING); return status; case SCI_PORT_SUB_CONFIGURING: - status = scic_sds_port_set_phy(sci_port, sci_phy); + status = scic_sds_port_set_phy(sci_port, iphy); if (status != SCI_SUCCESS) return status; - scic_sds_port_general_link_up_handler(sci_port, sci_phy, true); + scic_sds_port_general_link_up_handler(sci_port, iphy, true); /* Re-enter the configuring state since this may be the last phy in * the port. @@ -1496,7 +1435,7 @@ enum sci_status scic_sds_port_add_phy(struct scic_sds_port *sci_port, * other status is a failure to add the phy to the port. */ enum sci_status scic_sds_port_remove_phy(struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) + struct isci_phy *iphy) { enum sci_status status; enum scic_sds_port_states state; @@ -1505,23 +1444,23 @@ enum sci_status scic_sds_port_remove_phy(struct scic_sds_port *sci_port, switch (state) { case SCI_PORT_STOPPED: - return scic_sds_port_clear_phy(sci_port, sci_phy); + return scic_sds_port_clear_phy(sci_port, iphy); case SCI_PORT_SUB_OPERATIONAL: - status = scic_sds_port_clear_phy(sci_port, sci_phy); + status = scic_sds_port_clear_phy(sci_port, iphy); if (status != SCI_SUCCESS) return status; - scic_sds_port_deactivate_phy(sci_port, sci_phy, true); + scic_sds_port_deactivate_phy(sci_port, iphy, true); sci_port->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; port_state_machine_change(sci_port, SCI_PORT_SUB_CONFIGURING); return SCI_SUCCESS; case SCI_PORT_SUB_CONFIGURING: - status = scic_sds_port_clear_phy(sci_port, sci_phy); + status = scic_sds_port_clear_phy(sci_port, iphy); if (status != SCI_SUCCESS) return status; - scic_sds_port_deactivate_phy(sci_port, sci_phy, true); + scic_sds_port_deactivate_phy(sci_port, iphy, true); /* Re-enter the configuring state since this may be the last phy in * the port @@ -1537,7 +1476,7 @@ enum sci_status scic_sds_port_remove_phy(struct scic_sds_port *sci_port, } enum sci_status scic_sds_port_link_up(struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) + struct isci_phy *iphy) { enum scic_sds_port_states state; @@ -1547,13 +1486,13 @@ enum sci_status scic_sds_port_link_up(struct scic_sds_port *sci_port, /* Since this is the first phy going link up for the port we * can just enable it and continue */ - scic_sds_port_activate_phy(sci_port, sci_phy, true); + scic_sds_port_activate_phy(sci_port, iphy, true); port_state_machine_change(sci_port, SCI_PORT_SUB_OPERATIONAL); return SCI_SUCCESS; case SCI_PORT_SUB_OPERATIONAL: - scic_sds_port_general_link_up_handler(sci_port, sci_phy, true); + scic_sds_port_general_link_up_handler(sci_port, iphy, true); return SCI_SUCCESS; case SCI_PORT_RESETTING: /* TODO We should make sure that the phy that has gone @@ -1570,7 +1509,7 @@ enum sci_status scic_sds_port_link_up(struct scic_sds_port *sci_port, /* In the resetting state we don't notify the user regarding * link up and link down notifications. */ - scic_sds_port_general_link_up_handler(sci_port, sci_phy, false); + scic_sds_port_general_link_up_handler(sci_port, iphy, false); return SCI_SUCCESS; default: dev_warn(sciport_to_dev(sci_port), @@ -1580,14 +1519,14 @@ enum sci_status scic_sds_port_link_up(struct scic_sds_port *sci_port, } enum sci_status scic_sds_port_link_down(struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) + struct isci_phy *iphy) { enum scic_sds_port_states state; state = sci_port->sm.current_state_id; switch (state) { case SCI_PORT_SUB_OPERATIONAL: - scic_sds_port_deactivate_phy(sci_port, sci_phy, true); + scic_sds_port_deactivate_phy(sci_port, iphy, true); /* If there are no active phys left in the port, then * transition the port to the WAITING state until such time @@ -1600,7 +1539,7 @@ enum sci_status scic_sds_port_link_down(struct scic_sds_port *sci_port, case SCI_PORT_RESETTING: /* In the resetting state we don't notify the user regarding * link up and link down notifications. */ - scic_sds_port_deactivate_phy(sci_port, sci_phy, false); + scic_sds_port_deactivate_phy(sci_port, iphy, false); return SCI_SUCCESS; default: dev_warn(sciport_to_dev(sci_port), @@ -1879,13 +1818,13 @@ enum isci_status isci_port_get_state( void scic_sds_port_broadcast_change_received( struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) + struct isci_phy *iphy) { struct scic_sds_controller *scic = sci_port->owning_controller; struct isci_host *ihost = scic_to_ihost(scic); /* notify the user. */ - isci_port_bc_change_received(ihost, sci_port, sci_phy); + isci_port_bc_change_received(ihost, sci_port, iphy); } int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *iport, diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index 668f3a14cd7..b6ce56a6c11 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -131,7 +131,7 @@ struct scic_sds_port { /** * This field is the table of phys assigned to the port. */ - struct scic_sds_phy *phy_table[SCI_MAX_PHYS]; + struct isci_phy *phy_table[SCI_MAX_PHYS]; /** * This field is a pointer back to the controller that owns this @@ -328,11 +328,11 @@ enum sci_status scic_sds_port_stop(struct scic_sds_port *sci_port); enum sci_status scic_sds_port_add_phy( struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy); + struct isci_phy *iphy); enum sci_status scic_sds_port_remove_phy( struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy); + struct isci_phy *iphy); void scic_sds_port_setup_transports( struct scic_sds_port *sci_port, @@ -342,17 +342,17 @@ void isci_port_bcn_enable(struct isci_host *, struct isci_port *); void scic_sds_port_deactivate_phy( struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy, + struct isci_phy *iphy, bool do_notify_user); bool scic_sds_port_link_detected( struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy); + struct isci_phy *iphy); enum sci_status scic_sds_port_link_up(struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy); + struct isci_phy *iphy); enum sci_status scic_sds_port_link_down(struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy); + struct isci_phy *iphy); struct isci_request; struct scic_sds_remote_device; @@ -371,7 +371,7 @@ enum sas_linkrate scic_sds_port_get_max_allowed_speed( void scic_sds_port_broadcast_change_received( struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy); + struct isci_phy *iphy); bool scic_sds_port_is_valid_phy_assignment( struct scic_sds_port *sci_port, diff --git a/drivers/scsi/isci/port_config.c b/drivers/scsi/isci/port_config.c index fcb8f030b7a..8444fd8219d 100644 --- a/drivers/scsi/isci/port_config.c +++ b/drivers/scsi/isci/port_config.c @@ -114,7 +114,7 @@ static s32 sci_sas_address_compare( */ static struct scic_sds_port *scic_sds_port_configuration_agent_find_port( struct scic_sds_controller *scic, - struct scic_sds_phy *phy) + struct isci_phy *iphy) { u8 i; struct sci_sas_address port_sas_address; @@ -127,8 +127,8 @@ static struct scic_sds_port *scic_sds_port_configuration_agent_find_port( * more phys match the sent and received SAS address as this phy in which * case it should participate in the same port. */ - scic_sds_phy_get_sas_address(phy, &phy_sas_address); - scic_sds_phy_get_attached_sas_address(phy, &phy_attached_device_address); + scic_sds_phy_get_sas_address(iphy, &phy_sas_address); + scic_sds_phy_get_attached_sas_address(iphy, &phy_attached_device_address); for (i = 0; i < scic->logical_port_entries; i++) { struct isci_host *ihost = scic_to_ihost(scic); @@ -196,8 +196,8 @@ static enum sci_status scic_sds_port_configuration_agent_validate_ports( * PE0 and PE3 can never have the same SAS Address unless they * are part of the same x4 wide port and we have already checked * for this condition. */ - scic_sds_phy_get_sas_address(&ihost->phys[0].sci, &first_address); - scic_sds_phy_get_sas_address(&ihost->phys[3].sci, &second_address); + scic_sds_phy_get_sas_address(&ihost->phys[0], &first_address); + scic_sds_phy_get_sas_address(&ihost->phys[3], &second_address); if (sci_sas_address_compare(first_address, second_address) == 0) { return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; @@ -209,8 +209,8 @@ static enum sci_status scic_sds_port_configuration_agent_validate_ports( * part of the same port. */ if (port_agent->phy_valid_port_range[0].min_index == 0 && port_agent->phy_valid_port_range[1].min_index == 1) { - scic_sds_phy_get_sas_address(&ihost->phys[0].sci, &first_address); - scic_sds_phy_get_sas_address(&ihost->phys[2].sci, &second_address); + scic_sds_phy_get_sas_address(&ihost->phys[0], &first_address); + scic_sds_phy_get_sas_address(&ihost->phys[2], &second_address); if (sci_sas_address_compare(first_address, second_address) == 0) { return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; @@ -223,8 +223,8 @@ static enum sci_status scic_sds_port_configuration_agent_validate_ports( * part of the same port. */ if (port_agent->phy_valid_port_range[2].min_index == 2 && port_agent->phy_valid_port_range[3].min_index == 3) { - scic_sds_phy_get_sas_address(&ihost->phys[1].sci, &first_address); - scic_sds_phy_get_sas_address(&ihost->phys[3].sci, &second_address); + scic_sds_phy_get_sas_address(&ihost->phys[1], &first_address); + scic_sds_phy_get_sas_address(&ihost->phys[3], &second_address); if (sci_sas_address_compare(first_address, second_address) == 0) { return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; @@ -277,7 +277,7 @@ static enum sci_status scic_sds_mpc_agent_validate_phy_configuration( for (phy_index = 0; phy_index < SCI_MAX_PHYS; phy_index++) { if ((phy_mask & (1 << phy_index)) == 0) continue; - scic_sds_phy_get_sas_address(&ihost->phys[phy_index].sci, + scic_sds_phy_get_sas_address(&ihost->phys[phy_index], &sas_address); /* @@ -302,7 +302,7 @@ static enum sci_status scic_sds_mpc_agent_validate_phy_configuration( while (phy_index < SCI_MAX_PHYS) { if ((phy_mask & (1 << phy_index)) == 0) continue; - scic_sds_phy_get_sas_address(&ihost->phys[phy_index].sci, + scic_sds_phy_get_sas_address(&ihost->phys[phy_index], &phy_assigned_address); if (sci_sas_address_compare(sas_address, phy_assigned_address) != 0) { @@ -316,7 +316,7 @@ static enum sci_status scic_sds_mpc_agent_validate_phy_configuration( port_agent->phy_valid_port_range[phy_index].max_index = phy_index; scic_sds_port_add_phy(&ihost->ports[port_index].sci, - &ihost->phys[phy_index].sci); + &ihost->phys[phy_index]); assigned_phy_mask |= (1 << phy_index); } @@ -352,12 +352,12 @@ static void mpc_agent_timeout(unsigned long data) configure_phy_mask = ~port_agent->phy_configured_mask & port_agent->phy_ready_mask; for (index = 0; index < SCI_MAX_PHYS; index++) { - struct scic_sds_phy *sci_phy = &ihost->phys[index].sci; + struct isci_phy *iphy = &ihost->phys[index]; if (configure_phy_mask & (1 << index)) { port_agent->link_up_handler(scic, port_agent, - phy_get_non_dummy_port(sci_phy), - sci_phy); + phy_get_non_dummy_port(iphy), + iphy); } } @@ -365,37 +365,22 @@ done: spin_unlock_irqrestore(&ihost->scic_lock, flags); } -/** - * - * @controller: This is the controller object that receives the link up - * notification. - * @port: This is the port object associated with the phy. If the is no - * associated port this is an NULL. - * @phy: This is the phy object which has gone ready. - * - * This method handles the manual port configuration link up notifications. - * Since all ports and phys are associate at initialization time we just turn - * around and notifiy the port object that there is a link up. If this PHY is - * not associated with a port there is no action taken. Is it possible to get a - * link up notification from a phy that has no assocoated port? - */ -static void scic_sds_mpc_agent_link_up( - struct scic_sds_controller *controller, - struct scic_sds_port_configuration_agent *port_agent, - struct scic_sds_port *port, - struct scic_sds_phy *phy) +static void scic_sds_mpc_agent_link_up(struct scic_sds_controller *controller, + struct scic_sds_port_configuration_agent *port_agent, + struct scic_sds_port *port, + struct isci_phy *iphy) { - /* - * If the port has an invalid handle then the phy was not assigned to + /* If the port has an invalid handle then the phy was not assigned to * a port. This is because the phy was not given the same SAS Address - * as the other PHYs in the port. */ + * as the other PHYs in the port. + */ if (port != NULL) { - port_agent->phy_ready_mask |= (1 << scic_sds_phy_get_index(phy)); + port_agent->phy_ready_mask |= (1 << scic_sds_phy_get_index(iphy)); - scic_sds_port_link_up(port, phy); + scic_sds_port_link_up(port, iphy); - if ((port->active_phy_mask & (1 << scic_sds_phy_get_index(phy))) != 0) { - port_agent->phy_configured_mask |= (1 << scic_sds_phy_get_index(phy)); + if ((port->active_phy_mask & (1 << scic_sds_phy_get_index(iphy))) != 0) { + port_agent->phy_configured_mask |= (1 << scic_sds_phy_get_index(iphy)); } } } @@ -421,7 +406,7 @@ static void scic_sds_mpc_agent_link_down( struct scic_sds_controller *scic, struct scic_sds_port_configuration_agent *port_agent, struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) + struct isci_phy *iphy) { if (sci_port != NULL) { /* @@ -432,9 +417,9 @@ static void scic_sds_mpc_agent_link_down( * state. */ port_agent->phy_ready_mask &= - ~(1 << scic_sds_phy_get_index(sci_phy)); + ~(1 << scic_sds_phy_get_index(iphy)); port_agent->phy_configured_mask &= - ~(1 << scic_sds_phy_get_index(sci_phy)); + ~(1 << scic_sds_phy_get_index(iphy)); /* * Check to see if there are more phys waiting to be @@ -451,7 +436,7 @@ static void scic_sds_mpc_agent_link_down( SCIC_SDS_MPC_RECONFIGURATION_TIMEOUT); } - scic_sds_port_link_down(sci_port, sci_phy); + scic_sds_port_link_down(sci_port, iphy); } } @@ -482,11 +467,11 @@ static enum sci_status scic_sds_apc_agent_validate_phy_configuration( port_index = phy_index; /* Get the assigned SAS Address for the first PHY on the controller. */ - scic_sds_phy_get_sas_address(&ihost->phys[phy_index].sci, + scic_sds_phy_get_sas_address(&ihost->phys[phy_index], &sas_address); while (++phy_index < SCI_MAX_PHYS) { - scic_sds_phy_get_sas_address(&ihost->phys[phy_index].sci, + scic_sds_phy_get_sas_address(&ihost->phys[phy_index], &phy_assigned_address); /* Verify each of the SAS address are all the same for every PHY */ @@ -504,20 +489,10 @@ static enum sci_status scic_sds_apc_agent_validate_phy_configuration( return scic_sds_port_configuration_agent_validate_ports(controller, port_agent); } -/** - * - * @controller: This is the controller object that receives the link up - * notification. - * @phy: This is the phy object which has gone link up. - * - * This method handles the automatic port configuration for link up - * notifications. - */ -static void scic_sds_apc_agent_configure_ports( - struct scic_sds_controller *controller, - struct scic_sds_port_configuration_agent *port_agent, - struct scic_sds_phy *phy, - bool start_timer) +static void scic_sds_apc_agent_configure_ports(struct scic_sds_controller *controller, + struct scic_sds_port_configuration_agent *port_agent, + struct isci_phy *iphy, + bool start_timer) { u8 port_index; enum sci_status status; @@ -525,10 +500,10 @@ static void scic_sds_apc_agent_configure_ports( enum SCIC_SDS_APC_ACTIVITY apc_activity = SCIC_SDS_APC_SKIP_PHY; struct isci_host *ihost = scic_to_ihost(controller); - port = scic_sds_port_configuration_agent_find_port(controller, phy); + port = scic_sds_port_configuration_agent_find_port(controller, iphy); if (port != NULL) { - if (scic_sds_port_is_valid_phy_assignment(port, phy->phy_index)) + if (scic_sds_port_is_valid_phy_assignment(port, iphy->phy_index)) apc_activity = SCIC_SDS_APC_ADD_PHY; else apc_activity = SCIC_SDS_APC_SKIP_PHY; @@ -540,20 +515,20 @@ static void scic_sds_apc_agent_configure_ports( * * Note the break when we reach the condition of the port id == phy id */ for ( - port_index = port_agent->phy_valid_port_range[phy->phy_index].min_index; - port_index <= port_agent->phy_valid_port_range[phy->phy_index].max_index; + port_index = port_agent->phy_valid_port_range[iphy->phy_index].min_index; + port_index <= port_agent->phy_valid_port_range[iphy->phy_index].max_index; port_index++ ) { port = &ihost->ports[port_index].sci; /* First we must make sure that this PHY can be added to this Port. */ - if (scic_sds_port_is_valid_phy_assignment(port, phy->phy_index)) { + if (scic_sds_port_is_valid_phy_assignment(port, iphy->phy_index)) { /* * Port contains a PHY with a greater PHY ID than the current * PHY that has gone link up. This phy can not be part of any * port so skip it and move on. */ - if (port->active_phy_mask > (1 << phy->phy_index)) { + if (port->active_phy_mask > (1 << iphy->phy_index)) { apc_activity = SCIC_SDS_APC_SKIP_PHY; break; } @@ -562,7 +537,7 @@ static void scic_sds_apc_agent_configure_ports( * We have reached the end of our Port list and have not found * any reason why we should not either add the PHY to the port * or wait for more phys to become active. */ - if (port->physical_port_index == phy->phy_index) { + if (port->physical_port_index == iphy->phy_index) { /* * The Port either has no active PHYs. * Consider that if the port had any active PHYs we would have @@ -608,10 +583,10 @@ static void scic_sds_apc_agent_configure_ports( switch (apc_activity) { case SCIC_SDS_APC_ADD_PHY: - status = scic_sds_port_add_phy(port, phy); + status = scic_sds_port_add_phy(port, iphy); if (status == SCI_SUCCESS) { - port_agent->phy_configured_mask |= (1 << phy->phy_index); + port_agent->phy_configured_mask |= (1 << iphy->phy_index); } break; @@ -651,14 +626,14 @@ static void scic_sds_apc_agent_configure_ports( static void scic_sds_apc_agent_link_up(struct scic_sds_controller *scic, struct scic_sds_port_configuration_agent *port_agent, struct scic_sds_port *sci_port, - struct scic_sds_phy *sci_phy) + struct isci_phy *iphy) { - u8 phy_index = sci_phy->phy_index; + u8 phy_index = iphy->phy_index; if (!sci_port) { /* the phy is not the part of this port */ port_agent->phy_ready_mask |= 1 << phy_index; - scic_sds_apc_agent_configure_ports(scic, port_agent, sci_phy, true); + scic_sds_apc_agent_configure_ports(scic, port_agent, iphy, true); } else { /* the phy is already the part of the port */ u32 port_state = sci_port->sm.current_state_id; @@ -669,7 +644,7 @@ static void scic_sds_apc_agent_link_up(struct scic_sds_controller *scic, */ BUG_ON(port_state != SCI_PORT_RESETTING); port_agent->phy_ready_mask |= 1 << phy_index; - scic_sds_port_link_up(sci_port, sci_phy); + scic_sds_port_link_up(sci_port, iphy); } } @@ -690,18 +665,18 @@ static void scic_sds_apc_agent_link_down( struct scic_sds_controller *controller, struct scic_sds_port_configuration_agent *port_agent, struct scic_sds_port *port, - struct scic_sds_phy *phy) + struct isci_phy *iphy) { - port_agent->phy_ready_mask &= ~(1 << scic_sds_phy_get_index(phy)); + port_agent->phy_ready_mask &= ~(1 << scic_sds_phy_get_index(iphy)); if (port != NULL) { - if (port_agent->phy_configured_mask & (1 << phy->phy_index)) { + if (port_agent->phy_configured_mask & (1 << iphy->phy_index)) { enum sci_status status; - status = scic_sds_port_remove_phy(port, phy); + status = scic_sds_port_remove_phy(port, iphy); if (status == SCI_SUCCESS) { - port_agent->phy_configured_mask &= ~(1 << phy->phy_index); + port_agent->phy_configured_mask &= ~(1 << iphy->phy_index); } } } @@ -739,7 +714,7 @@ static void apc_agent_timeout(unsigned long data) continue; scic_sds_apc_agent_configure_ports(scic, port_agent, - &ihost->phys[index].sci, false); + &ihost->phys[index], false); } done: diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index c7cb0c54df5..a81a864d35c 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -1389,7 +1389,7 @@ int isci_remote_device_found(struct domain_device *domain_dev) sas_port = domain_dev->port; sas_phy = list_first_entry(&sas_port->phy_list, struct asd_sas_phy, port_phy_el); - isci_phy = to_isci_phy(sas_phy); + isci_phy = to_iphy(sas_phy); isci_port = isci_phy->isci_port; /* we are being called for a device on this port, -- cgit v1.2.3-70-g09d2 From ffe191c92ff195d73f9130b1490045ca2dd4c5e0 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Wed, 29 Jun 2011 13:09:25 -0700 Subject: isci: unify isci_port and scic_sds_port Remove the distinction between these two implementations and unify on isci_port (local instances named iport). The duplicate '->owning_port' and '->isci_port' in both isci_phy and isci_remote_device will be fixed in a later patch... this is just the straightforward rename/unification. Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/host.c | 32 +- drivers/scsi/isci/host.h | 11 +- drivers/scsi/isci/phy.c | 10 +- drivers/scsi/isci/phy.h | 10 +- drivers/scsi/isci/port.c | 622 +++++++++++++++++++------------------- drivers/scsi/isci/port.h | 174 ++++------- drivers/scsi/isci/port_config.c | 99 +++--- drivers/scsi/isci/remote_device.c | 61 ++-- drivers/scsi/isci/remote_device.h | 10 +- drivers/scsi/isci/request.c | 33 +- 10 files changed, 481 insertions(+), 581 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index c5c2733a519..4e11f9e6d76 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -1054,9 +1054,9 @@ static enum sci_status scic_controller_start(struct scic_sds_controller *scic, /* Start all of the ports on this controller */ for (index = 0; index < scic->logical_port_entries; index++) { - struct scic_sds_port *sci_port = &ihost->ports[index].sci; + struct isci_port *iport = &ihost->ports[index]; - result = scic_sds_port_start(sci_port); + result = scic_sds_port_start(iport); if (result) return result; } @@ -1306,8 +1306,8 @@ void isci_host_deinit(struct isci_host *ihost) /* Cancel any/all outstanding port timers */ for (i = 0; i < ihost->sci.logical_port_entries; i++) { - struct scic_sds_port *sci_port = &ihost->ports[i].sci; - del_timer_sync(&sci_port->timer.timer); + struct isci_port *iport = &ihost->ports[i]; + del_timer_sync(&iport->timer.timer); } /* Cancel any/all outstanding phy timers */ @@ -1552,9 +1552,9 @@ static enum sci_status scic_sds_controller_stop_ports(struct scic_sds_controller struct isci_host *ihost = scic_to_ihost(scic); for (index = 0; index < scic->logical_port_entries; index++) { - struct scic_sds_port *sci_port = &ihost->ports[index].sci; + struct isci_port *iport = &ihost->ports[index]; - port_status = scic_sds_port_stop(sci_port); + port_status = scic_sds_port_stop(iport); if ((port_status != SCI_SUCCESS) && (port_status != SCI_FAILURE_INVALID_STATE)) { @@ -1564,7 +1564,7 @@ static enum sci_status scic_sds_controller_stop_ports(struct scic_sds_controller "%s: Controller stop operation failed to " "stop port %d because of status %d.\n", __func__, - sci_port->logical_port_index, + iport->logical_port_index, port_status); } } @@ -1780,14 +1780,14 @@ static enum sci_status scic_controller_construct(struct scic_sds_controller *sci /* Construct the ports for this controller */ for (i = 0; i < SCI_MAX_PORTS; i++) - scic_sds_port_construct(&ihost->ports[i].sci, i, scic); - scic_sds_port_construct(&ihost->ports[i].sci, SCIC_SDS_DUMMY_PORT, scic); + scic_sds_port_construct(&ihost->ports[i], i, scic); + scic_sds_port_construct(&ihost->ports[i], SCIC_SDS_DUMMY_PORT, scic); /* Construct the phys for this controller */ for (i = 0; i < SCI_MAX_PHYS; i++) { /* Add all the PHYs to the dummy port */ scic_sds_phy_construct(&ihost->phys[i], - &ihost->ports[SCI_MAX_PORTS].sci, i); + &ihost->ports[SCI_MAX_PORTS], i); } scic->invalid_phy_mask = 0; @@ -2233,7 +2233,7 @@ static enum sci_status scic_controller_initialize(struct scic_sds_controller *sc } for (i = 0; i < scic->logical_port_entries; i++) { - result = scic_sds_port_initialize(&ihost->ports[i].sci, + result = scic_sds_port_initialize(&ihost->ports[i], &scic->scu_registers->peg0.ptsg.port[i], &scic->scu_registers->peg0.ptsg.protocol_engine, &scic->scu_registers->peg0.viit[i]); @@ -2484,19 +2484,19 @@ int isci_host_init(struct isci_host *isci_host) } void scic_sds_controller_link_up(struct scic_sds_controller *scic, - struct scic_sds_port *port, struct isci_phy *iphy) + struct isci_port *iport, struct isci_phy *iphy) { switch (scic->sm.current_state_id) { case SCIC_STARTING: sci_del_timer(&scic->phy_timer); scic->phy_startup_timer_pending = false; scic->port_agent.link_up_handler(scic, &scic->port_agent, - port, iphy); + iport, iphy); scic_sds_controller_start_next_phy(scic); break; case SCIC_READY: scic->port_agent.link_up_handler(scic, &scic->port_agent, - port, iphy); + iport, iphy); break; default: dev_dbg(scic_to_dev(scic), @@ -2507,13 +2507,13 @@ void scic_sds_controller_link_up(struct scic_sds_controller *scic, } void scic_sds_controller_link_down(struct scic_sds_controller *scic, - struct scic_sds_port *port, struct isci_phy *iphy) + struct isci_port *iport, struct isci_phy *iphy) { switch (scic->sm.current_state_id) { case SCIC_STARTING: case SCIC_READY: scic->port_agent.link_down_handler(scic, &scic->port_agent, - port, iphy); + iport, iphy); break; default: dev_dbg(scic_to_dev(scic), diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index 1edd13535c2..fb8048e5fce 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -108,7 +108,7 @@ struct scic_power_control { struct scic_sds_port_configuration_agent; typedef void (*port_config_fn)(struct scic_sds_controller *, struct scic_sds_port_configuration_agent *, - struct scic_sds_port *, struct isci_phy *); + struct isci_port *, struct isci_phy *); struct scic_sds_port_configuration_agent { u16 phy_configured_mask; @@ -532,9 +532,8 @@ static inline struct device *sciphy_to_dev(struct isci_phy *iphy) return &iphy->isci_port->isci_host->pdev->dev; } -static inline struct device *sciport_to_dev(struct scic_sds_port *sci_port) +static inline struct device *sciport_to_dev(struct isci_port *iport) { - struct isci_port *iport = sci_port_to_iport(sci_port); if (!iport || !iport->isci_host) return NULL; @@ -613,12 +612,12 @@ void scic_sds_controller_power_control_queue_remove( void scic_sds_controller_link_up( struct scic_sds_controller *scic, - struct scic_sds_port *sci_port, + struct isci_port *iport, struct isci_phy *iphy); void scic_sds_controller_link_down( struct scic_sds_controller *scic, - struct scic_sds_port *sci_port, + struct isci_port *iport, struct isci_phy *iphy); void scic_sds_controller_remote_device_stopped( @@ -649,7 +648,7 @@ void isci_host_deinit( void isci_host_port_link_up( struct isci_host *, - struct scic_sds_port *, + struct isci_port *, struct isci_phy *); int isci_host_dev_found(struct domain_device *); diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c index 0e60fb7bc1a..fd0e9734e5d 100644 --- a/drivers/scsi/isci/phy.c +++ b/drivers/scsi/isci/phy.c @@ -286,7 +286,7 @@ done: * port (i.e. it's contained in the dummy port). !NULL All other * values indicate a handle/pointer to the port containing the phy. */ -struct scic_sds_port *phy_get_non_dummy_port( +struct isci_port *phy_get_non_dummy_port( struct isci_phy *iphy) { if (scic_sds_port_get_index(iphy->owning_port) == SCIC_SDS_DUMMY_PORT) @@ -304,9 +304,9 @@ struct scic_sds_port *phy_get_non_dummy_port( */ void scic_sds_phy_set_port( struct isci_phy *iphy, - struct scic_sds_port *sci_port) + struct isci_port *iport) { - iphy->owning_port = sci_port; + iphy->owning_port = iport; if (iphy->bcn_received_while_port_unassigned) { iphy->bcn_received_while_port_unassigned = false; @@ -1291,12 +1291,12 @@ static const struct sci_base_state scic_sds_phy_state_table[] = { }; void scic_sds_phy_construct(struct isci_phy *iphy, - struct scic_sds_port *owning_port, u8 phy_index) + struct isci_port *iport, u8 phy_index) { sci_init_sm(&iphy->sm, scic_sds_phy_state_table, SCI_PHY_INITIAL); /* Copy the rest of the input data to our locals */ - iphy->owning_port = owning_port; + iphy->owning_port = iport; iphy->phy_index = phy_index; iphy->bcn_received_while_port_unassigned = false; iphy->protocol = SCIC_SDS_PHY_PROTOCOL_UNKNOWN; diff --git a/drivers/scsi/isci/phy.h b/drivers/scsi/isci/phy.h index 345fbeacb5c..19aa444517b 100644 --- a/drivers/scsi/isci/phy.h +++ b/drivers/scsi/isci/phy.h @@ -93,7 +93,7 @@ enum scic_sds_phy_protocol { */ struct isci_phy { struct sci_base_state_machine sm; - struct scic_sds_port *owning_port; + struct isci_port *owning_port; enum sas_linkrate max_negotiated_speed; enum scic_sds_phy_protocol protocol; u8 phy_index; @@ -178,7 +178,7 @@ struct scic_phy_properties { * supplied phy. This field may be set to NULL * if the phy is not currently contained in a port. */ - struct scic_sds_port *owning_port; + struct isci_port *iport; /** * This field specifies the link rate at which the phy is @@ -459,14 +459,14 @@ enum scic_sds_phy_states { void scic_sds_phy_construct( struct isci_phy *iphy, - struct scic_sds_port *owning_port, + struct isci_port *iport, u8 phy_index); -struct scic_sds_port *phy_get_non_dummy_port(struct isci_phy *iphy); +struct isci_port *phy_get_non_dummy_port(struct isci_phy *iphy); void scic_sds_phy_set_port( struct isci_phy *iphy, - struct scic_sds_port *owning_port); + struct isci_port *iport); enum sci_status scic_sds_phy_initialize( struct isci_phy *iphy, diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index d53c0b1748e..04591882ee7 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -83,7 +83,7 @@ static void isci_port_change_state(struct isci_port *iport, enum isci_status sta * transmit_identification register. */ static void -scic_sds_port_get_protocols(struct scic_sds_port *sci_port, +scic_sds_port_get_protocols(struct isci_port *iport, struct scic_phy_proto *protocols) { u8 index; @@ -91,8 +91,8 @@ scic_sds_port_get_protocols(struct scic_sds_port *sci_port, protocols->all = 0; for (index = 0; index < SCI_MAX_PHYS; index++) { - if (sci_port->phy_table[index] != NULL) { - scic_sds_phy_get_protocols(sci_port->phy_table[index], + if (iport->phy_table[index] != NULL) { + scic_sds_phy_get_protocols(iport->phy_table[index], protocols); } } @@ -107,7 +107,7 @@ scic_sds_port_get_protocols(struct scic_sds_port *sci_port, * Return a bit mask indicating which phys are a part of this port. Each bit * corresponds to a phy identifier (e.g. bit 0 = phy id 0). */ -static u32 scic_sds_port_get_phys(struct scic_sds_port *sci_port) +static u32 scic_sds_port_get_phys(struct isci_port *iport) { u32 index; u32 mask; @@ -115,7 +115,7 @@ static u32 scic_sds_port_get_phys(struct scic_sds_port *sci_port) mask = 0; for (index = 0; index < SCI_MAX_PHYS; index++) { - if (sci_port->phy_table[index] != NULL) { + if (iport->phy_table[index] != NULL) { mask |= (1 << index); } } @@ -136,30 +136,29 @@ static u32 scic_sds_port_get_phys(struct scic_sds_port *sci_port) * value is returned if the specified port is not valid. When this value is * returned, no data is copied to the properties output parameter. */ -static enum sci_status scic_port_get_properties(struct scic_sds_port *port, +static enum sci_status scic_port_get_properties(struct isci_port *iport, struct scic_port_properties *prop) { - if ((port == NULL) || - (port->logical_port_index == SCIC_SDS_DUMMY_PORT)) + if (!iport || iport->logical_port_index == SCIC_SDS_DUMMY_PORT) return SCI_FAILURE_INVALID_PORT; - prop->index = port->logical_port_index; - prop->phy_mask = scic_sds_port_get_phys(port); - scic_sds_port_get_sas_address(port, &prop->local.sas_address); - scic_sds_port_get_protocols(port, &prop->local.protocols); - scic_sds_port_get_attached_sas_address(port, &prop->remote.sas_address); + prop->index = iport->logical_port_index; + prop->phy_mask = scic_sds_port_get_phys(iport); + scic_sds_port_get_sas_address(iport, &prop->local.sas_address); + scic_sds_port_get_protocols(iport, &prop->local.protocols); + scic_sds_port_get_attached_sas_address(iport, &prop->remote.sas_address); return SCI_SUCCESS; } -static void scic_port_bcn_enable(struct scic_sds_port *sci_port) +static void scic_port_bcn_enable(struct isci_port *iport) { struct isci_phy *iphy; u32 val; int i; - for (i = 0; i < ARRAY_SIZE(sci_port->phy_table); i++) { - iphy = sci_port->phy_table[i]; + for (i = 0; i < ARRAY_SIZE(iport->phy_table); i++) { + iphy = iport->phy_table[i]; if (!iphy) continue; val = readl(&iphy->link_layer_registers->link_layer_control); @@ -179,8 +178,8 @@ void isci_port_bcn_enable(struct isci_host *ihost, struct isci_port *iport) if (!test_and_clear_bit(IPORT_BCN_PENDING, &iport->flags)) return; - for (i = 0; i < ARRAY_SIZE(iport->sci.phy_table); i++) { - struct isci_phy *iphy = iport->sci.phy_table[i]; + for (i = 0; i < ARRAY_SIZE(iport->phy_table); i++) { + struct isci_phy *iphy = iport->phy_table[i]; if (!iphy) continue; @@ -191,12 +190,10 @@ void isci_port_bcn_enable(struct isci_host *ihost, struct isci_port *iport) } } -void isci_port_bc_change_received(struct isci_host *ihost, - struct scic_sds_port *sci_port, - struct isci_phy *iphy) +static void isci_port_bc_change_received(struct isci_host *ihost, + struct isci_port *iport, + struct isci_phy *iphy) { - struct isci_port *iport = iphy->isci_port; - if (iport && test_bit(IPORT_BCN_BLOCKED, &iport->flags)) { dev_dbg(&ihost->pdev->dev, "%s: disabled BCN; isci_phy = %p, sas_phy = %p\n", @@ -212,31 +209,30 @@ void isci_port_bc_change_received(struct isci_host *ihost, ihost->sas_ha.notify_port_event(&iphy->sas_phy, PORTE_BROADCAST_RCVD); } - scic_port_bcn_enable(sci_port); + scic_port_bcn_enable(iport); } static void isci_port_link_up(struct isci_host *isci_host, - struct scic_sds_port *port, + struct isci_port *iport, struct isci_phy *iphy) { unsigned long flags; struct scic_port_properties properties; - struct isci_port *isci_port = sci_port_to_iport(port); unsigned long success = true; BUG_ON(iphy->isci_port != NULL); - iphy->isci_port = isci_port; + iphy->isci_port = iport; dev_dbg(&isci_host->pdev->dev, "%s: isci_port = %p\n", - __func__, isci_port); + __func__, iport); spin_lock_irqsave(&iphy->sas_phy.frame_rcvd_lock, flags); isci_port_change_state(iphy->isci_port, isci_starting); - scic_port_get_properties(port, &properties); + scic_port_get_properties(iport, &properties); if (iphy->protocol == SCIC_SDS_PHY_PROTOCOL_SATA) { u64 attached_sas_address; @@ -370,7 +366,7 @@ static void isci_port_not_ready(struct isci_host *isci_host, struct isci_port *i } static void isci_port_stop_complete(struct scic_sds_controller *scic, - struct scic_sds_port *sci_port, + struct isci_port *iport, enum sci_status completion_status) { dev_dbg(&scic_to_ihost(scic)->pdev->dev, "Port stop complete\n"); @@ -408,30 +404,30 @@ static void isci_port_hard_reset_complete(struct isci_port *isci_port, * assignment for the port false if this is not a valid phy assignment for the * port */ -bool scic_sds_port_is_valid_phy_assignment(struct scic_sds_port *sci_port, +bool scic_sds_port_is_valid_phy_assignment(struct isci_port *iport, u32 phy_index) { /* Initialize to invalid value. */ u32 existing_phy_index = SCI_MAX_PHYS; u32 index; - if ((sci_port->physical_port_index == 1) && (phy_index != 1)) { + if ((iport->physical_port_index == 1) && (phy_index != 1)) { return false; } - if (sci_port->physical_port_index == 3 && phy_index != 3) { + if (iport->physical_port_index == 3 && phy_index != 3) { return false; } if ( - (sci_port->physical_port_index == 2) + (iport->physical_port_index == 2) && ((phy_index == 0) || (phy_index == 1)) ) { return false; } for (index = 0; index < SCI_MAX_PHYS; index++) { - if ((sci_port->phy_table[index] != NULL) + if ((iport->phy_table[index] != NULL) && (index != phy_index)) { existing_phy_index = index; } @@ -442,9 +438,9 @@ bool scic_sds_port_is_valid_phy_assignment(struct scic_sds_port *sci_port, * operating at the same maximum link rate. */ if ( (existing_phy_index < SCI_MAX_PHYS) - && (sci_port->owning_controller->user_parameters.sds1.phys[ + && (iport->owning_controller->user_parameters.sds1.phys[ phy_index].max_speed_generation != - sci_port->owning_controller->user_parameters.sds1.phys[ + iport->owning_controller->user_parameters.sds1.phys[ existing_phy_index].max_speed_generation) ) return false; @@ -465,25 +461,25 @@ bool scic_sds_port_is_valid_phy_assignment(struct scic_sds_port *sci_port, * port false if this is not a valid phy assignment for the port */ static bool scic_sds_port_is_phy_mask_valid( - struct scic_sds_port *sci_port, + struct isci_port *iport, u32 phy_mask) { - if (sci_port->physical_port_index == 0) { + if (iport->physical_port_index == 0) { if (((phy_mask & 0x0F) == 0x0F) || ((phy_mask & 0x03) == 0x03) || ((phy_mask & 0x01) == 0x01) || (phy_mask == 0)) return true; - } else if (sci_port->physical_port_index == 1) { + } else if (iport->physical_port_index == 1) { if (((phy_mask & 0x02) == 0x02) || (phy_mask == 0)) return true; - } else if (sci_port->physical_port_index == 2) { + } else if (iport->physical_port_index == 2) { if (((phy_mask & 0x0C) == 0x0C) || ((phy_mask & 0x04) == 0x04) || (phy_mask == 0)) return true; - } else if (sci_port->physical_port_index == 3) { + } else if (iport->physical_port_index == 3) { if (((phy_mask & 0x08) == 0x08) || (phy_mask == 0)) return true; @@ -500,7 +496,7 @@ static bool scic_sds_port_is_phy_mask_valid( * point) phys contained in the port. All other values specify a struct scic_sds_phy * object that is active in the port. */ -static struct isci_phy *scic_sds_port_get_a_connected_phy(struct scic_sds_port *sci_port) +static struct isci_phy *scic_sds_port_get_a_connected_phy(struct isci_port *iport) { u32 index; struct isci_phy *iphy; @@ -509,29 +505,29 @@ static struct isci_phy *scic_sds_port_get_a_connected_phy(struct scic_sds_port * /* Ensure that the phy is both part of the port and currently * connected to the remote end-point. */ - iphy = sci_port->phy_table[index]; - if (iphy && scic_sds_port_active_phy(sci_port, iphy)) + iphy = iport->phy_table[index]; + if (iphy && scic_sds_port_active_phy(iport, iphy)) return iphy; } return NULL; } -static enum sci_status scic_sds_port_set_phy(struct scic_sds_port *port, struct isci_phy *iphy) +static enum sci_status scic_sds_port_set_phy(struct isci_port *iport, struct isci_phy *iphy) { /* Check to see if we can add this phy to a port * that means that the phy is not part of a port and that the port does * not already have a phy assinged to the phy index. */ - if (!port->phy_table[iphy->phy_index] && + if (!iport->phy_table[iphy->phy_index] && !phy_get_non_dummy_port(iphy) && - scic_sds_port_is_valid_phy_assignment(port, iphy->phy_index)) { + scic_sds_port_is_valid_phy_assignment(iport, iphy->phy_index)) { /* Phy is being added in the stopped state so we are in MPC mode * make logical port index = physical port index */ - port->logical_port_index = port->physical_port_index; - port->phy_table[iphy->phy_index] = iphy; - scic_sds_phy_set_port(iphy, port); + iport->logical_port_index = iport->physical_port_index; + iport->phy_table[iphy->phy_index] = iphy; + scic_sds_phy_set_port(iphy, iport); return SCI_SUCCESS; } @@ -539,18 +535,18 @@ static enum sci_status scic_sds_port_set_phy(struct scic_sds_port *port, struct return SCI_FAILURE; } -static enum sci_status scic_sds_port_clear_phy(struct scic_sds_port *port, +static enum sci_status scic_sds_port_clear_phy(struct isci_port *iport, struct isci_phy *iphy) { /* Make sure that this phy is part of this port */ - if (port->phy_table[iphy->phy_index] == iphy && - phy_get_non_dummy_port(iphy) == port) { - struct scic_sds_controller *scic = port->owning_controller; + if (iport->phy_table[iphy->phy_index] == iphy && + phy_get_non_dummy_port(iphy) == iport) { + struct scic_sds_controller *scic = iport->owning_controller; struct isci_host *ihost = scic_to_ihost(scic); /* Yep it is assigned to this port so remove it */ - scic_sds_phy_set_port(iphy, &ihost->ports[SCI_MAX_PORTS].sci); - port->phy_table[iphy->phy_index] = NULL; + scic_sds_phy_set_port(iphy, &ihost->ports[SCI_MAX_PORTS]); + iport->phy_table[iphy->phy_index] = NULL; return SCI_SUCCESS; } @@ -568,7 +564,7 @@ static enum sci_status scic_sds_port_clear_phy(struct scic_sds_port *port, * */ void scic_sds_port_get_sas_address( - struct scic_sds_port *sci_port, + struct isci_port *iport, struct sci_sas_address *sas_address) { u32 index; @@ -577,8 +573,8 @@ void scic_sds_port_get_sas_address( sas_address->low = 0; for (index = 0; index < SCI_MAX_PHYS; index++) { - if (sci_port->phy_table[index] != NULL) { - scic_sds_phy_get_sas_address(sci_port->phy_table[index], sas_address); + if (iport->phy_table[index] != NULL) { + scic_sds_phy_get_sas_address(iport->phy_table[index], sas_address); } } } @@ -594,7 +590,7 @@ void scic_sds_port_get_sas_address( * */ void scic_sds_port_get_attached_sas_address( - struct scic_sds_port *sci_port, + struct isci_port *iport, struct sci_sas_address *sas_address) { struct isci_phy *iphy; @@ -603,7 +599,7 @@ void scic_sds_port_get_attached_sas_address( * Ensure that the phy is both part of the port and currently * connected to the remote end-point. */ - iphy = scic_sds_port_get_a_connected_phy(sci_port); + iphy = scic_sds_port_get_a_connected_phy(iport); if (iphy) { if (iphy->protocol != SCIC_SDS_PHY_PROTOCOL_SATA) { scic_sds_phy_get_attached_sas_address(iphy, @@ -628,11 +624,11 @@ void scic_sds_port_get_attached_sas_address( * This structure will be posted to the hardware to work around a scheduler * error in the hardware. */ -static void scic_sds_port_construct_dummy_rnc(struct scic_sds_port *sci_port, u16 rni) +static void scic_sds_port_construct_dummy_rnc(struct isci_port *iport, u16 rni) { union scu_remote_node_context *rnc; - rnc = &sci_port->owning_controller->remote_node_context_table[rni]; + rnc = &iport->owning_controller->remote_node_context_table[rni]; memset(rnc, 0, sizeof(union scu_remote_node_context)); @@ -641,7 +637,7 @@ static void scic_sds_port_construct_dummy_rnc(struct scic_sds_port *sci_port, u1 rnc->ssp.remote_node_index = rni; rnc->ssp.remote_node_port_width = 1; - rnc->ssp.logical_port_index = sci_port->physical_port_index; + rnc->ssp.logical_port_index = iport->physical_port_index; rnc->ssp.nexus_loss_timer_enable = false; rnc->ssp.check_bit = false; @@ -656,9 +652,9 @@ static void scic_sds_port_construct_dummy_rnc(struct scic_sds_port *sci_port, u1 * structure will be posted to the hardwre to work around a scheduler error * in the hardware. */ -static void scic_sds_port_construct_dummy_task(struct scic_sds_port *sci_port, u16 tag) +static void scic_sds_port_construct_dummy_task(struct isci_port *iport, u16 tag) { - struct scic_sds_controller *scic = sci_port->owning_controller; + struct scic_sds_controller *scic = iport->owning_controller; struct scu_task_context *task_context; task_context = &scic->task_context_table[ISCI_TAG_TCI(tag)]; @@ -666,29 +662,29 @@ static void scic_sds_port_construct_dummy_task(struct scic_sds_port *sci_port, u task_context->initiator_request = 1; task_context->connection_rate = 1; - task_context->logical_port_index = sci_port->physical_port_index; + task_context->logical_port_index = iport->physical_port_index; task_context->protocol_type = SCU_TASK_CONTEXT_PROTOCOL_SSP; task_context->task_index = ISCI_TAG_TCI(tag); task_context->valid = SCU_TASK_CONTEXT_VALID; task_context->context_type = SCU_TASK_CONTEXT_TYPE; - task_context->remote_node_index = sci_port->reserved_rni; + task_context->remote_node_index = iport->reserved_rni; task_context->do_not_dma_ssp_good_response = 1; task_context->task_phase = 0x01; } -static void scic_sds_port_destroy_dummy_resources(struct scic_sds_port *sci_port) +static void scic_sds_port_destroy_dummy_resources(struct isci_port *iport) { - struct scic_sds_controller *scic = sci_port->owning_controller; + struct scic_sds_controller *scic = iport->owning_controller; - if (sci_port->reserved_tag != SCI_CONTROLLER_INVALID_IO_TAG) - isci_free_tag(scic_to_ihost(scic), sci_port->reserved_tag); + if (iport->reserved_tag != SCI_CONTROLLER_INVALID_IO_TAG) + isci_free_tag(scic_to_ihost(scic), iport->reserved_tag); - if (sci_port->reserved_rni != SCU_DUMMY_INDEX) + if (iport->reserved_rni != SCU_DUMMY_INDEX) scic_sds_remote_node_table_release_remote_node_index(&scic->available_remote_nodes, - 1, sci_port->reserved_rni); + 1, iport->reserved_rni); - sci_port->reserved_rni = SCU_DUMMY_INDEX; - sci_port->reserved_tag = SCI_CONTROLLER_INVALID_IO_TAG; + iport->reserved_rni = SCU_DUMMY_INDEX; + iport->reserved_tag = SCI_CONTROLLER_INVALID_IO_TAG; } /** @@ -704,14 +700,14 @@ static void scic_sds_port_destroy_dummy_resources(struct scic_sds_port *sci_port * if the phy being added to the port */ enum sci_status scic_sds_port_initialize( - struct scic_sds_port *sci_port, + struct isci_port *iport, void __iomem *port_task_scheduler_registers, void __iomem *port_configuration_regsiter, void __iomem *viit_registers) { - sci_port->port_task_scheduler_registers = port_task_scheduler_registers; - sci_port->port_pe_configuration_register = port_configuration_regsiter; - sci_port->viit_registers = viit_registers; + iport->port_task_scheduler_registers = port_task_scheduler_registers; + iport->port_pe_configuration_register = port_configuration_regsiter; + iport->viit_registers = viit_registers; return SCI_SUCCESS; } @@ -720,20 +716,20 @@ enum sci_status scic_sds_port_initialize( /** * This method assigns the direct attached device ID for this port. * - * @param[in] sci_port The port for which the direct attached device id is to + * @param[in] iport The port for which the direct attached device id is to * be assigned. * @param[in] device_id The direct attached device ID to assign to the port. * This will be the RNi for the device */ void scic_sds_port_setup_transports( - struct scic_sds_port *sci_port, + struct isci_port *iport, u32 device_id) { u8 index; for (index = 0; index < SCI_MAX_PHYS; index++) { - if (sci_port->active_phy_mask & (1 << index)) - scic_sds_phy_setup_transport(sci_port->phy_table[index], device_id); + if (iport->active_phy_mask & (1 << index)) + scic_sds_phy_setup_transport(iport->phy_table[index], device_id); } } @@ -749,39 +745,38 @@ void scic_sds_port_setup_transports( * the phy to the port - enabling the Protocol Engine in the silicon. - * notifying the user that the link is up. none */ -static void scic_sds_port_activate_phy(struct scic_sds_port *sci_port, +static void scic_sds_port_activate_phy(struct isci_port *iport, struct isci_phy *iphy, bool do_notify_user) { - struct scic_sds_controller *scic = sci_port->owning_controller; + struct scic_sds_controller *scic = iport->owning_controller; struct isci_host *ihost = scic_to_ihost(scic); if (iphy->protocol != SCIC_SDS_PHY_PROTOCOL_SATA) scic_sds_phy_resume(iphy); - sci_port->active_phy_mask |= 1 << iphy->phy_index; + iport->active_phy_mask |= 1 << iphy->phy_index; scic_sds_controller_clear_invalid_phy(scic, iphy); if (do_notify_user == true) - isci_port_link_up(ihost, sci_port, iphy); + isci_port_link_up(ihost, iport, iphy); } -void scic_sds_port_deactivate_phy(struct scic_sds_port *sci_port, +void scic_sds_port_deactivate_phy(struct isci_port *iport, struct isci_phy *iphy, bool do_notify_user) { - struct scic_sds_controller *scic = scic_sds_port_get_controller(sci_port); - struct isci_port *iport = sci_port_to_iport(sci_port); + struct scic_sds_controller *scic = scic_sds_port_get_controller(iport); struct isci_host *ihost = scic_to_ihost(scic); - sci_port->active_phy_mask &= ~(1 << iphy->phy_index); + iport->active_phy_mask &= ~(1 << iphy->phy_index); iphy->max_negotiated_speed = SAS_LINK_RATE_UNKNOWN; /* Re-assign the phy back to the LP as if it were a narrow port */ writel(iphy->phy_index, - &sci_port->port_pe_configuration_register[iphy->phy_index]); + &iport->port_pe_configuration_register[iphy->phy_index]); if (do_notify_user == true) isci_port_link_down(ihost, iphy, iport); @@ -795,10 +790,10 @@ void scic_sds_port_deactivate_phy(struct scic_sds_port *sci_port, * This function will disable the phy and report that the phy is not valid for * this port object. None */ -static void scic_sds_port_invalid_link_up(struct scic_sds_port *sci_port, +static void scic_sds_port_invalid_link_up(struct isci_port *iport, struct isci_phy *iphy) { - struct scic_sds_controller *scic = sci_port->owning_controller; + struct scic_sds_controller *scic = iport->owning_controller; /* * Check to see if we have alreay reported this link as bad and if @@ -825,17 +820,17 @@ static bool is_port_ready_state(enum scic_sds_port_states state) } /* flag dummy rnc hanling when exiting a ready state */ -static void port_state_machine_change(struct scic_sds_port *sci_port, +static void port_state_machine_change(struct isci_port *iport, enum scic_sds_port_states state) { - struct sci_base_state_machine *sm = &sci_port->sm; + struct sci_base_state_machine *sm = &iport->sm; enum scic_sds_port_states old_state = sm->current_state_id; if (is_port_ready_state(old_state) && !is_port_ready_state(state)) - sci_port->ready_exit = true; + iport->ready_exit = true; sci_change_state(sm, state); - sci_port->ready_exit = false; + iport->ready_exit = false; } /** @@ -851,14 +846,14 @@ static void port_state_machine_change(struct scic_sds_port *sci_port, * part of a port if it's attached SAS ADDRESS is the same as all other PHYs in * the same port. none */ -static void scic_sds_port_general_link_up_handler(struct scic_sds_port *sci_port, +static void scic_sds_port_general_link_up_handler(struct isci_port *iport, struct isci_phy *iphy, bool do_notify_user) { struct sci_sas_address port_sas_address; struct sci_sas_address phy_sas_address; - scic_sds_port_get_attached_sas_address(sci_port, &port_sas_address); + scic_sds_port_get_attached_sas_address(iport, &port_sas_address); scic_sds_phy_get_attached_sas_address(iphy, &phy_sas_address); /* If the SAS address of the new phy matches the SAS address of @@ -868,14 +863,14 @@ static void scic_sds_port_general_link_up_handler(struct scic_sds_port *sci_port */ if ((phy_sas_address.high == port_sas_address.high && phy_sas_address.low == port_sas_address.low) || - sci_port->active_phy_mask == 0) { - struct sci_base_state_machine *sm = &sci_port->sm; + iport->active_phy_mask == 0) { + struct sci_base_state_machine *sm = &iport->sm; - scic_sds_port_activate_phy(sci_port, iphy, do_notify_user); + scic_sds_port_activate_phy(iport, iphy, do_notify_user); if (sm->current_state_id == SCI_PORT_RESETTING) - port_state_machine_change(sci_port, SCI_PORT_READY); + port_state_machine_change(iport, SCI_PORT_READY); } else - scic_sds_port_invalid_link_up(sci_port, iphy); + scic_sds_port_invalid_link_up(iport, iphy); } @@ -889,13 +884,13 @@ static void scic_sds_port_general_link_up_handler(struct scic_sds_port *sci_port * bool true Is returned if this is a wide ported port. false Is returned if * this is a narrow port. */ -static bool scic_sds_port_is_wide(struct scic_sds_port *sci_port) +static bool scic_sds_port_is_wide(struct isci_port *iport) { u32 index; u32 phy_count = 0; for (index = 0; index < SCI_MAX_PHYS; index++) { - if (sci_port->phy_table[index] != NULL) { + if (iport->phy_table[index] != NULL) { phy_count++; } } @@ -918,13 +913,13 @@ static bool scic_sds_port_is_wide(struct scic_sds_port *sci_port) * devices this could become an invalid port configuration. */ bool scic_sds_port_link_detected( - struct scic_sds_port *sci_port, + struct isci_port *iport, struct isci_phy *iphy) { - if ((sci_port->logical_port_index != SCIC_SDS_DUMMY_PORT) && + if ((iport->logical_port_index != SCIC_SDS_DUMMY_PORT) && (iphy->protocol == SCIC_SDS_PHY_PROTOCOL_SATA) && - scic_sds_port_is_wide(sci_port)) { - scic_sds_port_invalid_link_up(sci_port, iphy); + scic_sds_port_is_wide(iport)) { + scic_sds_port_invalid_link_up(iport, iphy); return false; } @@ -935,8 +930,8 @@ bool scic_sds_port_link_detected( static void port_timeout(unsigned long data) { struct sci_timer *tmr = (struct sci_timer *)data; - struct scic_sds_port *sci_port = container_of(tmr, typeof(*sci_port), timer); - struct isci_host *ihost = scic_to_ihost(sci_port->owning_controller); + struct isci_port *iport = container_of(tmr, typeof(*iport), timer); + struct isci_host *ihost = scic_to_ihost(iport->owning_controller); unsigned long flags; u32 current_state; @@ -945,33 +940,33 @@ static void port_timeout(unsigned long data) if (tmr->cancel) goto done; - current_state = sci_port->sm.current_state_id; + current_state = iport->sm.current_state_id; if (current_state == SCI_PORT_RESETTING) { /* if the port is still in the resetting state then the timeout * fired before the reset completed. */ - port_state_machine_change(sci_port, SCI_PORT_FAILED); + port_state_machine_change(iport, SCI_PORT_FAILED); } else if (current_state == SCI_PORT_STOPPED) { /* if the port is stopped then the start request failed In this * case stay in the stopped state. */ - dev_err(sciport_to_dev(sci_port), + dev_err(sciport_to_dev(iport), "%s: SCIC Port 0x%p failed to stop before tiemout.\n", __func__, - sci_port); + iport); } else if (current_state == SCI_PORT_STOPPING) { /* if the port is still stopping then the stop has not completed */ - isci_port_stop_complete(sci_port->owning_controller, - sci_port, + isci_port_stop_complete(iport->owning_controller, + iport, SCI_FAILURE_TIMEOUT); } else { /* The port is in the ready state and we have a timer * reporting a timeout this should not happen. */ - dev_err(sciport_to_dev(sci_port), + dev_err(sciport_to_dev(iport), "%s: SCIC Port 0x%p is processing a timeout operation " - "in state %d.\n", __func__, sci_port, current_state); + "in state %d.\n", __func__, iport, current_state); } done: @@ -985,29 +980,29 @@ done: * * */ -static void scic_sds_port_update_viit_entry(struct scic_sds_port *sci_port) +static void scic_sds_port_update_viit_entry(struct isci_port *iport) { struct sci_sas_address sas_address; - scic_sds_port_get_sas_address(sci_port, &sas_address); + scic_sds_port_get_sas_address(iport, &sas_address); writel(sas_address.high, - &sci_port->viit_registers->initiator_sas_address_hi); + &iport->viit_registers->initiator_sas_address_hi); writel(sas_address.low, - &sci_port->viit_registers->initiator_sas_address_lo); + &iport->viit_registers->initiator_sas_address_lo); /* This value get cleared just in case its not already cleared */ - writel(0, &sci_port->viit_registers->reserved); + writel(0, &iport->viit_registers->reserved); /* We are required to update the status register last */ writel(SCU_VIIT_ENTRY_ID_VIIT | SCU_VIIT_IPPT_INITIATOR | - ((1 << sci_port->physical_port_index) << SCU_VIIT_ENTRY_LPVIE_SHIFT) | + ((1 << iport->physical_port_index) << SCU_VIIT_ENTRY_LPVIE_SHIFT) | SCU_VIIT_STATUS_ALL_VALID, - &sci_port->viit_registers->status); + &iport->viit_registers->status); } -enum sas_linkrate scic_sds_port_get_max_allowed_speed(struct scic_sds_port *sci_port) +enum sas_linkrate scic_sds_port_get_max_allowed_speed(struct isci_port *iport) { u16 index; struct isci_phy *iphy; @@ -1017,8 +1012,8 @@ enum sas_linkrate scic_sds_port_get_max_allowed_speed(struct scic_sds_port *sci_ * Loop through all of the phys in this port and find the phy with the * lowest maximum link rate. */ for (index = 0; index < SCI_MAX_PHYS; index++) { - iphy = sci_port->phy_table[index]; - if (iphy && scic_sds_port_active_phy(sci_port, iphy) && + iphy = iport->phy_table[index]; + if (iphy && scic_sds_port_active_phy(iport, iphy) && iphy->max_negotiated_speed < max_allowed_speed) max_allowed_speed = iphy->max_negotiated_speed; } @@ -1026,13 +1021,13 @@ enum sas_linkrate scic_sds_port_get_max_allowed_speed(struct scic_sds_port *sci_ return max_allowed_speed; } -static void scic_sds_port_suspend_port_task_scheduler(struct scic_sds_port *port) +static void scic_sds_port_suspend_port_task_scheduler(struct isci_port *iport) { u32 pts_control_value; - pts_control_value = readl(&port->port_task_scheduler_registers->control); + pts_control_value = readl(&iport->port_task_scheduler_registers->control); pts_control_value |= SCU_PTSxCR_GEN_BIT(SUSPEND); - writel(pts_control_value, &port->port_task_scheduler_registers->control); + writel(pts_control_value, &iport->port_task_scheduler_registers->control); } /** @@ -1044,10 +1039,10 @@ static void scic_sds_port_suspend_port_task_scheduler(struct scic_sds_port *port * ongoing requests. * */ -static void scic_sds_port_post_dummy_request(struct scic_sds_port *sci_port) +static void scic_sds_port_post_dummy_request(struct isci_port *iport) { - struct scic_sds_controller *scic = sci_port->owning_controller; - u16 tag = sci_port->reserved_tag; + struct scic_sds_controller *scic = iport->owning_controller; + u16 tag = iport->reserved_tag; struct scu_task_context *tc; u32 command; @@ -1055,7 +1050,7 @@ static void scic_sds_port_post_dummy_request(struct scic_sds_port *sci_port) tc->abort = 0; command = SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | - sci_port->physical_port_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | + iport->physical_port_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | ISCI_TAG_TCI(tag); scic_sds_controller_post_request(scic, command); @@ -1068,10 +1063,10 @@ static void scic_sds_port_post_dummy_request(struct scic_sds_port *sci_port) * @sci_port: The port on which the task must be aborted. * */ -static void scic_sds_port_abort_dummy_request(struct scic_sds_port *sci_port) +static void scic_sds_port_abort_dummy_request(struct isci_port *iport) { - struct scic_sds_controller *scic = sci_port->owning_controller; - u16 tag = sci_port->reserved_tag; + struct scic_sds_controller *scic = iport->owning_controller; + u16 tag = iport->reserved_tag; struct scu_task_context *tc; u32 command; @@ -1079,7 +1074,7 @@ static void scic_sds_port_abort_dummy_request(struct scic_sds_port *sci_port) tc->abort = 1; command = SCU_CONTEXT_COMMAND_REQUEST_POST_TC_ABORT | - sci_port->physical_port_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | + iport->physical_port_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | ISCI_TAG_TCI(tag); scic_sds_controller_post_request(scic, command); @@ -1087,31 +1082,31 @@ static void scic_sds_port_abort_dummy_request(struct scic_sds_port *sci_port) /** * - * @sci_port: This is the struct scic_sds_port object to resume. + * @sci_port: This is the struct isci_port object to resume. * * This method will resume the port task scheduler for this port object. none */ static void -scic_sds_port_resume_port_task_scheduler(struct scic_sds_port *port) +scic_sds_port_resume_port_task_scheduler(struct isci_port *iport) { u32 pts_control_value; - pts_control_value = readl(&port->port_task_scheduler_registers->control); + pts_control_value = readl(&iport->port_task_scheduler_registers->control); pts_control_value &= ~SCU_PTSxCR_GEN_BIT(SUSPEND); - writel(pts_control_value, &port->port_task_scheduler_registers->control); + writel(pts_control_value, &iport->port_task_scheduler_registers->control); } static void scic_sds_port_ready_substate_waiting_enter(struct sci_base_state_machine *sm) { - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); + struct isci_port *iport = container_of(sm, typeof(*iport), sm); - scic_sds_port_suspend_port_task_scheduler(sci_port); + scic_sds_port_suspend_port_task_scheduler(iport); - sci_port->not_ready_reason = SCIC_PORT_NOT_READY_NO_ACTIVE_PHYS; + iport->not_ready_reason = SCIC_PORT_NOT_READY_NO_ACTIVE_PHYS; - if (sci_port->active_phy_mask != 0) { + if (iport->active_phy_mask != 0) { /* At least one of the phys on the port is ready */ - port_state_machine_change(sci_port, + port_state_machine_change(iport, SCI_PORT_SUB_OPERATIONAL); } } @@ -1119,38 +1114,37 @@ static void scic_sds_port_ready_substate_waiting_enter(struct sci_base_state_mac static void scic_sds_port_ready_substate_operational_enter(struct sci_base_state_machine *sm) { u32 index; - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); - struct scic_sds_controller *scic = sci_port->owning_controller; + struct isci_port *iport = container_of(sm, typeof(*iport), sm); + struct scic_sds_controller *scic = iport->owning_controller; struct isci_host *ihost = scic_to_ihost(scic); - struct isci_port *iport = sci_port_to_iport(sci_port); isci_port_ready(ihost, iport); for (index = 0; index < SCI_MAX_PHYS; index++) { - if (sci_port->phy_table[index]) { - writel(sci_port->physical_port_index, - &sci_port->port_pe_configuration_register[ - sci_port->phy_table[index]->phy_index]); + if (iport->phy_table[index]) { + writel(iport->physical_port_index, + &iport->port_pe_configuration_register[ + iport->phy_table[index]->phy_index]); } } - scic_sds_port_update_viit_entry(sci_port); + scic_sds_port_update_viit_entry(iport); - scic_sds_port_resume_port_task_scheduler(sci_port); + scic_sds_port_resume_port_task_scheduler(iport); /* * Post the dummy task for the port so the hardware can schedule * io correctly */ - scic_sds_port_post_dummy_request(sci_port); + scic_sds_port_post_dummy_request(iport); } -static void scic_sds_port_invalidate_dummy_remote_node(struct scic_sds_port *sci_port) +static void scic_sds_port_invalidate_dummy_remote_node(struct isci_port *iport) { - struct scic_sds_controller *scic = sci_port->owning_controller; - u8 phys_index = sci_port->physical_port_index; + struct scic_sds_controller *scic = iport->owning_controller; + u8 phys_index = iport->physical_port_index; union scu_remote_node_context *rnc; - u16 rni = sci_port->reserved_rni; + u16 rni = iport->reserved_rni; u32 command; rnc = &scic->remote_node_context_table[rni]; @@ -1172,73 +1166,71 @@ static void scic_sds_port_invalidate_dummy_remote_node(struct scic_sds_port *sci /** * - * @object: This is the object which is cast to a struct scic_sds_port object. + * @object: This is the object which is cast to a struct isci_port object. * - * This method will perform the actions required by the struct scic_sds_port on + * This method will perform the actions required by the struct isci_port on * exiting the SCI_PORT_SUB_OPERATIONAL. This function reports * the port not ready and suspends the port task scheduler. none */ static void scic_sds_port_ready_substate_operational_exit(struct sci_base_state_machine *sm) { - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); - struct scic_sds_controller *scic = sci_port->owning_controller; + struct isci_port *iport = container_of(sm, typeof(*iport), sm); + struct scic_sds_controller *scic = iport->owning_controller; struct isci_host *ihost = scic_to_ihost(scic); - struct isci_port *iport = sci_port_to_iport(sci_port); /* * Kill the dummy task for this port if it has not yet posted * the hardware will treat this as a NOP and just return abort * complete. */ - scic_sds_port_abort_dummy_request(sci_port); + scic_sds_port_abort_dummy_request(iport); isci_port_not_ready(ihost, iport); - if (sci_port->ready_exit) - scic_sds_port_invalidate_dummy_remote_node(sci_port); + if (iport->ready_exit) + scic_sds_port_invalidate_dummy_remote_node(iport); } static void scic_sds_port_ready_substate_configuring_enter(struct sci_base_state_machine *sm) { - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); - struct scic_sds_controller *scic = sci_port->owning_controller; + struct isci_port *iport = container_of(sm, typeof(*iport), sm); + struct scic_sds_controller *scic = iport->owning_controller; struct isci_host *ihost = scic_to_ihost(scic); - struct isci_port *iport = sci_port_to_iport(sci_port); - if (sci_port->active_phy_mask == 0) { + if (iport->active_phy_mask == 0) { isci_port_not_ready(ihost, iport); - port_state_machine_change(sci_port, + port_state_machine_change(iport, SCI_PORT_SUB_WAITING); - } else if (sci_port->started_request_count == 0) - port_state_machine_change(sci_port, + } else if (iport->started_request_count == 0) + port_state_machine_change(iport, SCI_PORT_SUB_OPERATIONAL); } static void scic_sds_port_ready_substate_configuring_exit(struct sci_base_state_machine *sm) { - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); + struct isci_port *iport = container_of(sm, typeof(*iport), sm); - scic_sds_port_suspend_port_task_scheduler(sci_port); - if (sci_port->ready_exit) - scic_sds_port_invalidate_dummy_remote_node(sci_port); + scic_sds_port_suspend_port_task_scheduler(iport); + if (iport->ready_exit) + scic_sds_port_invalidate_dummy_remote_node(iport); } -enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port) +enum sci_status scic_sds_port_start(struct isci_port *iport) { - struct scic_sds_controller *scic = sci_port->owning_controller; + struct scic_sds_controller *scic = iport->owning_controller; enum sci_status status = SCI_SUCCESS; enum scic_sds_port_states state; u32 phy_mask; - state = sci_port->sm.current_state_id; + state = iport->sm.current_state_id; if (state != SCI_PORT_STOPPED) { - dev_warn(sciport_to_dev(sci_port), + dev_warn(sciport_to_dev(iport), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } - if (sci_port->assigned_device_count > 0) { + if (iport->assigned_device_count > 0) { /* TODO This is a start failure operation because * there are still devices assigned to this port. * There must be no devices assigned to a port on a @@ -1247,18 +1239,18 @@ enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port) return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; } - if (sci_port->reserved_rni == SCU_DUMMY_INDEX) { + if (iport->reserved_rni == SCU_DUMMY_INDEX) { u16 rni = scic_sds_remote_node_table_allocate_remote_node( &scic->available_remote_nodes, 1); if (rni != SCU_DUMMY_INDEX) - scic_sds_port_construct_dummy_rnc(sci_port, rni); + scic_sds_port_construct_dummy_rnc(iport, rni); else status = SCI_FAILURE_INSUFFICIENT_RESOURCES; - sci_port->reserved_rni = rni; + iport->reserved_rni = rni; } - if (sci_port->reserved_tag == SCI_CONTROLLER_INVALID_IO_TAG) { + if (iport->reserved_tag == SCI_CONTROLLER_INVALID_IO_TAG) { struct isci_host *ihost = scic_to_ihost(scic); u16 tag; @@ -1266,20 +1258,20 @@ enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port) if (tag == SCI_CONTROLLER_INVALID_IO_TAG) status = SCI_FAILURE_INSUFFICIENT_RESOURCES; else - scic_sds_port_construct_dummy_task(sci_port, tag); - sci_port->reserved_tag = tag; + scic_sds_port_construct_dummy_task(iport, tag); + iport->reserved_tag = tag; } if (status == SCI_SUCCESS) { - phy_mask = scic_sds_port_get_phys(sci_port); + phy_mask = scic_sds_port_get_phys(iport); /* * There are one or more phys assigned to this port. Make sure * the port's phy mask is in fact legal and supported by the * silicon. */ - if (scic_sds_port_is_phy_mask_valid(sci_port, phy_mask) == true) { - port_state_machine_change(sci_port, + if (scic_sds_port_is_phy_mask_valid(iport, phy_mask) == true) { + port_state_machine_change(iport, SCI_PORT_READY); return SCI_SUCCESS; @@ -1288,16 +1280,16 @@ enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port) } if (status != SCI_SUCCESS) - scic_sds_port_destroy_dummy_resources(sci_port); + scic_sds_port_destroy_dummy_resources(iport); return status; } -enum sci_status scic_sds_port_stop(struct scic_sds_port *sci_port) +enum sci_status scic_sds_port_stop(struct isci_port *iport) { enum scic_sds_port_states state; - state = sci_port->sm.current_state_id; + state = iport->sm.current_state_id; switch (state) { case SCI_PORT_STOPPED: return SCI_SUCCESS; @@ -1305,34 +1297,34 @@ enum sci_status scic_sds_port_stop(struct scic_sds_port *sci_port) case SCI_PORT_SUB_OPERATIONAL: case SCI_PORT_SUB_CONFIGURING: case SCI_PORT_RESETTING: - port_state_machine_change(sci_port, + port_state_machine_change(iport, SCI_PORT_STOPPING); return SCI_SUCCESS; default: - dev_warn(sciport_to_dev(sci_port), + dev_warn(sciport_to_dev(iport), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } } -static enum sci_status scic_port_hard_reset(struct scic_sds_port *sci_port, u32 timeout) +static enum sci_status scic_port_hard_reset(struct isci_port *iport, u32 timeout) { enum sci_status status = SCI_FAILURE_INVALID_PHY; struct isci_phy *iphy = NULL; enum scic_sds_port_states state; u32 phy_index; - state = sci_port->sm.current_state_id; + state = iport->sm.current_state_id; if (state != SCI_PORT_SUB_OPERATIONAL) { - dev_warn(sciport_to_dev(sci_port), + dev_warn(sciport_to_dev(iport), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } /* Select a phy on which we can send the hard reset request. */ for (phy_index = 0; phy_index < SCI_MAX_PHYS && !iphy; phy_index++) { - iphy = sci_port->phy_table[phy_index]; - if (iphy && !scic_sds_port_active_phy(sci_port, iphy)) { + iphy = iport->phy_table[phy_index]; + if (iphy && !scic_sds_port_active_phy(iport, iphy)) { /* * We found a phy but it is not ready select * different phy @@ -1349,10 +1341,10 @@ static enum sci_status scic_port_hard_reset(struct scic_sds_port *sci_port, u32 if (status != SCI_SUCCESS) return status; - sci_mod_timer(&sci_port->timer, timeout); - sci_port->not_ready_reason = SCIC_PORT_NOT_READY_HARD_RESET_REQUESTED; + sci_mod_timer(&iport->timer, timeout); + iport->not_ready_reason = SCIC_PORT_NOT_READY_HARD_RESET_REQUESTED; - port_state_machine_change(sci_port, SCI_PORT_RESETTING); + port_state_machine_change(iport, SCI_PORT_RESETTING); return SCI_SUCCESS; } @@ -1365,19 +1357,19 @@ static enum sci_status scic_port_hard_reset(struct scic_sds_port *sci_port, u32 * enum sci_status. SCI_SUCCESS the phy has been added to the port. Any other * status is a failure to add the phy to the port. */ -enum sci_status scic_sds_port_add_phy(struct scic_sds_port *sci_port, +enum sci_status scic_sds_port_add_phy(struct isci_port *iport, struct isci_phy *iphy) { enum sci_status status; enum scic_sds_port_states state; - state = sci_port->sm.current_state_id; + state = iport->sm.current_state_id; switch (state) { case SCI_PORT_STOPPED: { struct sci_sas_address port_sas_address; /* Read the port assigned SAS Address if there is one */ - scic_sds_port_get_sas_address(sci_port, &port_sas_address); + scic_sds_port_get_sas_address(iport, &port_sas_address); if (port_sas_address.high != 0 && port_sas_address.low != 0) { struct sci_sas_address phy_sas_address; @@ -1391,35 +1383,35 @@ enum sci_status scic_sds_port_add_phy(struct scic_sds_port *sci_port, port_sas_address.low != phy_sas_address.low) return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; } - return scic_sds_port_set_phy(sci_port, iphy); + return scic_sds_port_set_phy(iport, iphy); } case SCI_PORT_SUB_WAITING: case SCI_PORT_SUB_OPERATIONAL: - status = scic_sds_port_set_phy(sci_port, iphy); + status = scic_sds_port_set_phy(iport, iphy); if (status != SCI_SUCCESS) return status; - scic_sds_port_general_link_up_handler(sci_port, iphy, true); - sci_port->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; - port_state_machine_change(sci_port, SCI_PORT_SUB_CONFIGURING); + scic_sds_port_general_link_up_handler(iport, iphy, true); + iport->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; + port_state_machine_change(iport, SCI_PORT_SUB_CONFIGURING); return status; case SCI_PORT_SUB_CONFIGURING: - status = scic_sds_port_set_phy(sci_port, iphy); + status = scic_sds_port_set_phy(iport, iphy); if (status != SCI_SUCCESS) return status; - scic_sds_port_general_link_up_handler(sci_port, iphy, true); + scic_sds_port_general_link_up_handler(iport, iphy, true); /* Re-enter the configuring state since this may be the last phy in * the port. */ - port_state_machine_change(sci_port, + port_state_machine_change(iport, SCI_PORT_SUB_CONFIGURING); return SCI_SUCCESS; default: - dev_warn(sciport_to_dev(sci_port), + dev_warn(sciport_to_dev(iport), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } @@ -1434,65 +1426,65 @@ enum sci_status scic_sds_port_add_phy(struct scic_sds_port *sci_port, * an enum sci_status. SCI_SUCCESS the phy has been removed from the port. Any * other status is a failure to add the phy to the port. */ -enum sci_status scic_sds_port_remove_phy(struct scic_sds_port *sci_port, +enum sci_status scic_sds_port_remove_phy(struct isci_port *iport, struct isci_phy *iphy) { enum sci_status status; enum scic_sds_port_states state; - state = sci_port->sm.current_state_id; + state = iport->sm.current_state_id; switch (state) { case SCI_PORT_STOPPED: - return scic_sds_port_clear_phy(sci_port, iphy); + return scic_sds_port_clear_phy(iport, iphy); case SCI_PORT_SUB_OPERATIONAL: - status = scic_sds_port_clear_phy(sci_port, iphy); + status = scic_sds_port_clear_phy(iport, iphy); if (status != SCI_SUCCESS) return status; - scic_sds_port_deactivate_phy(sci_port, iphy, true); - sci_port->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; - port_state_machine_change(sci_port, + scic_sds_port_deactivate_phy(iport, iphy, true); + iport->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; + port_state_machine_change(iport, SCI_PORT_SUB_CONFIGURING); return SCI_SUCCESS; case SCI_PORT_SUB_CONFIGURING: - status = scic_sds_port_clear_phy(sci_port, iphy); + status = scic_sds_port_clear_phy(iport, iphy); if (status != SCI_SUCCESS) return status; - scic_sds_port_deactivate_phy(sci_port, iphy, true); + scic_sds_port_deactivate_phy(iport, iphy, true); /* Re-enter the configuring state since this may be the last phy in * the port */ - port_state_machine_change(sci_port, + port_state_machine_change(iport, SCI_PORT_SUB_CONFIGURING); return SCI_SUCCESS; default: - dev_warn(sciport_to_dev(sci_port), + dev_warn(sciport_to_dev(iport), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } } -enum sci_status scic_sds_port_link_up(struct scic_sds_port *sci_port, +enum sci_status scic_sds_port_link_up(struct isci_port *iport, struct isci_phy *iphy) { enum scic_sds_port_states state; - state = sci_port->sm.current_state_id; + state = iport->sm.current_state_id; switch (state) { case SCI_PORT_SUB_WAITING: /* Since this is the first phy going link up for the port we * can just enable it and continue */ - scic_sds_port_activate_phy(sci_port, iphy, true); + scic_sds_port_activate_phy(iport, iphy, true); - port_state_machine_change(sci_port, + port_state_machine_change(iport, SCI_PORT_SUB_OPERATIONAL); return SCI_SUCCESS; case SCI_PORT_SUB_OPERATIONAL: - scic_sds_port_general_link_up_handler(sci_port, iphy, true); + scic_sds_port_general_link_up_handler(iport, iphy, true); return SCI_SUCCESS; case SCI_PORT_RESETTING: /* TODO We should make sure that the phy that has gone @@ -1509,82 +1501,82 @@ enum sci_status scic_sds_port_link_up(struct scic_sds_port *sci_port, /* In the resetting state we don't notify the user regarding * link up and link down notifications. */ - scic_sds_port_general_link_up_handler(sci_port, iphy, false); + scic_sds_port_general_link_up_handler(iport, iphy, false); return SCI_SUCCESS; default: - dev_warn(sciport_to_dev(sci_port), + dev_warn(sciport_to_dev(iport), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } } -enum sci_status scic_sds_port_link_down(struct scic_sds_port *sci_port, +enum sci_status scic_sds_port_link_down(struct isci_port *iport, struct isci_phy *iphy) { enum scic_sds_port_states state; - state = sci_port->sm.current_state_id; + state = iport->sm.current_state_id; switch (state) { case SCI_PORT_SUB_OPERATIONAL: - scic_sds_port_deactivate_phy(sci_port, iphy, true); + scic_sds_port_deactivate_phy(iport, iphy, true); /* If there are no active phys left in the port, then * transition the port to the WAITING state until such time * as a phy goes link up */ - if (sci_port->active_phy_mask == 0) - port_state_machine_change(sci_port, + if (iport->active_phy_mask == 0) + port_state_machine_change(iport, SCI_PORT_SUB_WAITING); return SCI_SUCCESS; case SCI_PORT_RESETTING: /* In the resetting state we don't notify the user regarding * link up and link down notifications. */ - scic_sds_port_deactivate_phy(sci_port, iphy, false); + scic_sds_port_deactivate_phy(iport, iphy, false); return SCI_SUCCESS; default: - dev_warn(sciport_to_dev(sci_port), + dev_warn(sciport_to_dev(iport), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } } -enum sci_status scic_sds_port_start_io(struct scic_sds_port *sci_port, +enum sci_status scic_sds_port_start_io(struct isci_port *iport, struct scic_sds_remote_device *sci_dev, struct isci_request *ireq) { enum scic_sds_port_states state; - state = sci_port->sm.current_state_id; + state = iport->sm.current_state_id; switch (state) { case SCI_PORT_SUB_WAITING: return SCI_FAILURE_INVALID_STATE; case SCI_PORT_SUB_OPERATIONAL: - sci_port->started_request_count++; + iport->started_request_count++; return SCI_SUCCESS; default: - dev_warn(sciport_to_dev(sci_port), + dev_warn(sciport_to_dev(iport), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } } -enum sci_status scic_sds_port_complete_io(struct scic_sds_port *sci_port, +enum sci_status scic_sds_port_complete_io(struct isci_port *iport, struct scic_sds_remote_device *sci_dev, struct isci_request *ireq) { enum scic_sds_port_states state; - state = sci_port->sm.current_state_id; + state = iport->sm.current_state_id; switch (state) { case SCI_PORT_STOPPED: - dev_warn(sciport_to_dev(sci_port), + dev_warn(sciport_to_dev(iport), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; case SCI_PORT_STOPPING: - scic_sds_port_decrement_request_count(sci_port); + scic_sds_port_decrement_request_count(iport); - if (sci_port->started_request_count == 0) - port_state_machine_change(sci_port, + if (iport->started_request_count == 0) + port_state_machine_change(iport, SCI_PORT_STOPPED); break; case SCI_PORT_READY: @@ -1592,12 +1584,12 @@ enum sci_status scic_sds_port_complete_io(struct scic_sds_port *sci_port, case SCI_PORT_FAILED: case SCI_PORT_SUB_WAITING: case SCI_PORT_SUB_OPERATIONAL: - scic_sds_port_decrement_request_count(sci_port); + scic_sds_port_decrement_request_count(iport); break; case SCI_PORT_SUB_CONFIGURING: - scic_sds_port_decrement_request_count(sci_port); - if (sci_port->started_request_count == 0) { - port_state_machine_change(sci_port, + scic_sds_port_decrement_request_count(iport); + if (iport->started_request_count == 0) { + port_state_machine_change(iport, SCI_PORT_SUB_OPERATIONAL); } break; @@ -1613,13 +1605,13 @@ enum sci_status scic_sds_port_complete_io(struct scic_sds_port *sci_port, * will leave the port task scheduler in a suspended state. none */ static void -scic_sds_port_enable_port_task_scheduler(struct scic_sds_port *port) +scic_sds_port_enable_port_task_scheduler(struct isci_port *iport) { u32 pts_control_value; - pts_control_value = readl(&port->port_task_scheduler_registers->control); + pts_control_value = readl(&iport->port_task_scheduler_registers->control); pts_control_value |= SCU_PTSxCR_GEN_BIT(ENABLE) | SCU_PTSxCR_GEN_BIT(SUSPEND); - writel(pts_control_value, &port->port_task_scheduler_registers->control); + writel(pts_control_value, &iport->port_task_scheduler_registers->control); } /** @@ -1630,22 +1622,22 @@ scic_sds_port_enable_port_task_scheduler(struct scic_sds_port *port) * none */ static void -scic_sds_port_disable_port_task_scheduler(struct scic_sds_port *port) +scic_sds_port_disable_port_task_scheduler(struct isci_port *iport) { u32 pts_control_value; - pts_control_value = readl(&port->port_task_scheduler_registers->control); + pts_control_value = readl(&iport->port_task_scheduler_registers->control); pts_control_value &= ~(SCU_PTSxCR_GEN_BIT(ENABLE) | SCU_PTSxCR_GEN_BIT(SUSPEND)); - writel(pts_control_value, &port->port_task_scheduler_registers->control); + writel(pts_control_value, &iport->port_task_scheduler_registers->control); } -static void scic_sds_port_post_dummy_remote_node(struct scic_sds_port *sci_port) +static void scic_sds_port_post_dummy_remote_node(struct isci_port *iport) { - struct scic_sds_controller *scic = sci_port->owning_controller; - u8 phys_index = sci_port->physical_port_index; + struct scic_sds_controller *scic = iport->owning_controller; + u8 phys_index = iport->physical_port_index; union scu_remote_node_context *rnc; - u16 rni = sci_port->reserved_rni; + u16 rni = iport->reserved_rni; u32 command; rnc = &scic->remote_node_context_table[rni]; @@ -1670,67 +1662,65 @@ static void scic_sds_port_post_dummy_remote_node(struct scic_sds_port *sci_port) static void scic_sds_port_stopped_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); + struct isci_port *iport = container_of(sm, typeof(*iport), sm); - if (sci_port->sm.previous_state_id == SCI_PORT_STOPPING) { + if (iport->sm.previous_state_id == SCI_PORT_STOPPING) { /* * If we enter this state becasuse of a request to stop * the port then we want to disable the hardwares port * task scheduler. */ - scic_sds_port_disable_port_task_scheduler(sci_port); + scic_sds_port_disable_port_task_scheduler(iport); } } static void scic_sds_port_stopped_state_exit(struct sci_base_state_machine *sm) { - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); + struct isci_port *iport = container_of(sm, typeof(*iport), sm); /* Enable and suspend the port task scheduler */ - scic_sds_port_enable_port_task_scheduler(sci_port); + scic_sds_port_enable_port_task_scheduler(iport); } static void scic_sds_port_ready_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); - struct scic_sds_controller *scic = sci_port->owning_controller; + struct isci_port *iport = container_of(sm, typeof(*iport), sm); + struct scic_sds_controller *scic = iport->owning_controller; struct isci_host *ihost = scic_to_ihost(scic); - struct isci_port *iport = sci_port_to_iport(sci_port); u32 prev_state; - prev_state = sci_port->sm.previous_state_id; + prev_state = iport->sm.previous_state_id; if (prev_state == SCI_PORT_RESETTING) isci_port_hard_reset_complete(iport, SCI_SUCCESS); else isci_port_not_ready(ihost, iport); /* Post and suspend the dummy remote node context for this port. */ - scic_sds_port_post_dummy_remote_node(sci_port); + scic_sds_port_post_dummy_remote_node(iport); /* Start the ready substate machine */ - port_state_machine_change(sci_port, + port_state_machine_change(iport, SCI_PORT_SUB_WAITING); } static void scic_sds_port_resetting_state_exit(struct sci_base_state_machine *sm) { - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); + struct isci_port *iport = container_of(sm, typeof(*iport), sm); - sci_del_timer(&sci_port->timer); + sci_del_timer(&iport->timer); } static void scic_sds_port_stopping_state_exit(struct sci_base_state_machine *sm) { - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); + struct isci_port *iport = container_of(sm, typeof(*iport), sm); - sci_del_timer(&sci_port->timer); + sci_del_timer(&iport->timer); - scic_sds_port_destroy_dummy_resources(sci_port); + scic_sds_port_destroy_dummy_resources(iport); } static void scic_sds_port_failed_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_port *sci_port = container_of(sm, typeof(*sci_port), sm); - struct isci_port *iport = sci_port_to_iport(sci_port); + struct isci_port *iport = container_of(sm, typeof(*iport), sm); isci_port_hard_reset_complete(iport, SCI_FAILURE_TIMEOUT); } @@ -1767,30 +1757,30 @@ static const struct sci_base_state scic_sds_port_state_table[] = { } }; -void scic_sds_port_construct(struct scic_sds_port *sci_port, u8 index, +void scic_sds_port_construct(struct isci_port *iport, u8 index, struct scic_sds_controller *scic) { - sci_init_sm(&sci_port->sm, scic_sds_port_state_table, SCI_PORT_STOPPED); + sci_init_sm(&iport->sm, scic_sds_port_state_table, SCI_PORT_STOPPED); - sci_port->logical_port_index = SCIC_SDS_DUMMY_PORT; - sci_port->physical_port_index = index; - sci_port->active_phy_mask = 0; - sci_port->ready_exit = false; + iport->logical_port_index = SCIC_SDS_DUMMY_PORT; + iport->physical_port_index = index; + iport->active_phy_mask = 0; + iport->ready_exit = false; - sci_port->owning_controller = scic; + iport->owning_controller = scic; - sci_port->started_request_count = 0; - sci_port->assigned_device_count = 0; + iport->started_request_count = 0; + iport->assigned_device_count = 0; - sci_port->reserved_rni = SCU_DUMMY_INDEX; - sci_port->reserved_tag = SCI_CONTROLLER_INVALID_IO_TAG; + iport->reserved_rni = SCU_DUMMY_INDEX; + iport->reserved_tag = SCI_CONTROLLER_INVALID_IO_TAG; - sci_init_timer(&sci_port->timer, port_timeout); + sci_init_timer(&iport->timer, port_timeout); - sci_port->port_task_scheduler_registers = NULL; + iport->port_task_scheduler_registers = NULL; for (index = 0; index < SCI_MAX_PHYS; index++) - sci_port->phy_table[index] = NULL; + iport->phy_table[index] = NULL; } void isci_port_init(struct isci_port *iport, struct isci_host *ihost, int index) @@ -1817,14 +1807,14 @@ enum isci_status isci_port_get_state( } void scic_sds_port_broadcast_change_received( - struct scic_sds_port *sci_port, + struct isci_port *iport, struct isci_phy *iphy) { - struct scic_sds_controller *scic = sci_port->owning_controller; + struct scic_sds_controller *scic = iport->owning_controller; struct isci_host *ihost = scic_to_ihost(scic); /* notify the user. */ - isci_port_bc_change_received(ihost, sci_port, iphy); + isci_port_bc_change_received(ihost, iport, iphy); } int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *iport, @@ -1842,7 +1832,7 @@ int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *ipor spin_lock_irqsave(&ihost->scic_lock, flags); #define ISCI_PORT_RESET_TIMEOUT SCIC_SDS_SIGNATURE_FIS_TIMEOUT - status = scic_port_hard_reset(&iport->sci, ISCI_PORT_RESET_TIMEOUT); + status = scic_port_hard_reset(iport, ISCI_PORT_RESET_TIMEOUT); spin_unlock_irqrestore(&ihost->scic_lock, flags); @@ -1878,14 +1868,12 @@ int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *ipor /* Down all phys in the port. */ spin_lock_irqsave(&ihost->scic_lock, flags); for (idx = 0; idx < SCI_MAX_PHYS; ++idx) { + struct isci_phy *iphy = iport->phy_table[idx]; - if (iport->sci.phy_table[idx] != NULL) { - - scic_sds_phy_stop( - iport->sci.phy_table[idx]); - scic_sds_phy_start( - iport->sci.phy_table[idx]); - } + if (!iphy) + continue; + scic_sds_phy_stop(iphy); + scic_sds_phy_start(iphy); } spin_unlock_irqrestore(&ihost->scic_lock, flags); } diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index b6ce56a6c11..cdea48ece00 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -76,100 +76,19 @@ enum isci_status { }; /** - * struct scic_sds_port - * - * The core port object provides the the abstraction for an SCU port. - */ -struct scic_sds_port { - /** - * This field contains the information for the base port state machine. - */ - struct sci_base_state_machine sm; - - bool ready_exit; - - /** - * This field is the port index that is reported to the SCI USER. - * This allows the actual hardware physical port to change without - * the SCI USER getting a different answer for the get port index. - */ - u8 logical_port_index; - - /** - * This field is the port index used to program the SCU hardware. - */ - u8 physical_port_index; - - /** - * This field contains the active phy mask for the port. - * This mask is used in conjunction with the phy state to determine - * which phy to select for some port operations. - */ - u8 active_phy_mask; - - u16 reserved_rni; - u16 reserved_tag; - - /** - * This field contains the count of the io requests started on this port - * object. It is used to control controller shutdown. - */ - u32 started_request_count; - - /** - * This field contains the number of devices assigned to this port. - * It is used to control port start requests. - */ - u32 assigned_device_count; - - /** - * This field contains the reason for the port not going ready. It is - * assigned in the state handlers and used in the state transition. - */ - u32 not_ready_reason; - - /** - * This field is the table of phys assigned to the port. - */ - struct isci_phy *phy_table[SCI_MAX_PHYS]; - - /** - * This field is a pointer back to the controller that owns this - * port object. - */ - struct scic_sds_controller *owning_controller; - - /* timer used for port start/stop operations */ - struct sci_timer timer; - - /** - * This field is the pointer to the port task scheduler registers - * for the SCU hardware. - */ - struct scu_port_task_scheduler_registers __iomem - *port_task_scheduler_registers; - - /** - * This field is identical for all port objects and points to the port - * task scheduler group PE configuration registers. - * It is used to assign PEs to a port. - */ - u32 __iomem *port_pe_configuration_register; - - /** - * This field is the VIIT register space for ths port object. - */ - struct scu_viit_entry __iomem *viit_registers; -}; - - - -/** - * struct isci_port - This class represents the port object used to internally - * represent libsas port objects. It also keeps a list of remote device - * objects. - * - * + * struct isci_port - isci direct attached sas port object + * @event: counts bcns and port stop events (for bcn filtering) + * @ready_exit: several states constitute 'ready'. When exiting ready we + * need to take extra port-teardown actions that are + * skipped when exiting to another 'ready' state. + * @logical_port_index: software port index + * @physical_port_index: hardware port index + * @active_phy_mask: identifies phy members + * @reserved_tag: + * @reserved_rni: reserver for port task scheduler workaround + * @started_request_count: reference count for outstanding commands + * @not_ready_reason: set during state transitions and notified + * @timer: timeout start/stop operations */ struct isci_port { enum isci_status status; @@ -185,16 +104,25 @@ struct isci_port { struct completion start_complete; struct completion hard_reset_complete; enum sci_status hard_reset_status; - struct scic_sds_port sci; + struct sci_base_state_machine sm; + bool ready_exit; + u8 logical_port_index; + u8 physical_port_index; + u8 active_phy_mask; + u16 reserved_rni; + u16 reserved_tag; + u32 started_request_count; + u32 assigned_device_count; + u32 not_ready_reason; + struct isci_phy *phy_table[SCI_MAX_PHYS]; + struct scic_sds_controller *owning_controller; + struct sci_timer timer; + struct scu_port_task_scheduler_registers __iomem *port_task_scheduler_registers; + /* XXX rework: only one register, no need to replicate per-port */ + u32 __iomem *port_pe_configuration_register; + struct scu_viit_entry __iomem *viit_registers; }; -static inline struct isci_port *sci_port_to_iport(struct scic_sds_port *sci_port) -{ - struct isci_port *iport = container_of(sci_port, typeof(*iport), sci); - - return iport; -} - enum scic_port_not_ready_reason_code { SCIC_PORT_NOT_READY_NO_ACTIVE_PHYS, SCIC_PORT_NOT_READY_HARD_RESET_REQUESTED, @@ -299,90 +227,90 @@ enum scic_sds_port_states { ((this_port)->physical_port_index) -static inline void scic_sds_port_decrement_request_count(struct scic_sds_port *sci_port) +static inline void scic_sds_port_decrement_request_count(struct isci_port *iport) { - if (WARN_ONCE(sci_port->started_request_count == 0, + if (WARN_ONCE(iport->started_request_count == 0, "%s: tried to decrement started_request_count past 0!?", __func__)) /* pass */; else - sci_port->started_request_count--; + iport->started_request_count--; } #define scic_sds_port_active_phy(port, phy) \ (((port)->active_phy_mask & (1 << (phy)->phy_index)) != 0) void scic_sds_port_construct( - struct scic_sds_port *sci_port, + struct isci_port *iport, u8 port_index, struct scic_sds_controller *scic); enum sci_status scic_sds_port_initialize( - struct scic_sds_port *sci_port, + struct isci_port *iport, void __iomem *port_task_scheduler_registers, void __iomem *port_configuration_regsiter, void __iomem *viit_registers); -enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port); -enum sci_status scic_sds_port_stop(struct scic_sds_port *sci_port); +enum sci_status scic_sds_port_start(struct isci_port *iport); +enum sci_status scic_sds_port_stop(struct isci_port *iport); enum sci_status scic_sds_port_add_phy( - struct scic_sds_port *sci_port, + struct isci_port *iport, struct isci_phy *iphy); enum sci_status scic_sds_port_remove_phy( - struct scic_sds_port *sci_port, + struct isci_port *iport, struct isci_phy *iphy); void scic_sds_port_setup_transports( - struct scic_sds_port *sci_port, + struct isci_port *iport, u32 device_id); void isci_port_bcn_enable(struct isci_host *, struct isci_port *); void scic_sds_port_deactivate_phy( - struct scic_sds_port *sci_port, + struct isci_port *iport, struct isci_phy *iphy, bool do_notify_user); bool scic_sds_port_link_detected( - struct scic_sds_port *sci_port, + struct isci_port *iport, struct isci_phy *iphy); -enum sci_status scic_sds_port_link_up(struct scic_sds_port *sci_port, +enum sci_status scic_sds_port_link_up(struct isci_port *iport, struct isci_phy *iphy); -enum sci_status scic_sds_port_link_down(struct scic_sds_port *sci_port, +enum sci_status scic_sds_port_link_down(struct isci_port *iport, struct isci_phy *iphy); struct isci_request; struct scic_sds_remote_device; enum sci_status scic_sds_port_start_io( - struct scic_sds_port *sci_port, + struct isci_port *iport, struct scic_sds_remote_device *sci_dev, struct isci_request *ireq); enum sci_status scic_sds_port_complete_io( - struct scic_sds_port *sci_port, + struct isci_port *iport, struct scic_sds_remote_device *sci_dev, struct isci_request *ireq); enum sas_linkrate scic_sds_port_get_max_allowed_speed( - struct scic_sds_port *sci_port); + struct isci_port *iport); void scic_sds_port_broadcast_change_received( - struct scic_sds_port *sci_port, + struct isci_port *iport, struct isci_phy *iphy); bool scic_sds_port_is_valid_phy_assignment( - struct scic_sds_port *sci_port, + struct isci_port *iport, u32 phy_index); void scic_sds_port_get_sas_address( - struct scic_sds_port *sci_port, + struct isci_port *iport, struct sci_sas_address *sas_address); void scic_sds_port_get_attached_sas_address( - struct scic_sds_port *sci_port, + struct isci_port *iport, struct sci_sas_address *sas_address); enum isci_status isci_port_get_state( diff --git a/drivers/scsi/isci/port_config.c b/drivers/scsi/isci/port_config.c index 8444fd8219d..bb62d2a2521 100644 --- a/drivers/scsi/isci/port_config.c +++ b/drivers/scsi/isci/port_config.c @@ -112,7 +112,7 @@ static s32 sci_sas_address_compare( * port. port address if the port can be found to match the phy. * NULL if there is no matching port for the phy. */ -static struct scic_sds_port *scic_sds_port_configuration_agent_find_port( +static struct isci_port *scic_sds_port_configuration_agent_find_port( struct scic_sds_controller *scic, struct isci_phy *iphy) { @@ -132,14 +132,14 @@ static struct scic_sds_port *scic_sds_port_configuration_agent_find_port( for (i = 0; i < scic->logical_port_entries; i++) { struct isci_host *ihost = scic_to_ihost(scic); - struct scic_sds_port *sci_port = &ihost->ports[i].sci; + struct isci_port *iport = &ihost->ports[i]; - scic_sds_port_get_sas_address(sci_port, &port_sas_address); - scic_sds_port_get_attached_sas_address(sci_port, &port_attached_device_address); + scic_sds_port_get_sas_address(iport, &port_sas_address); + scic_sds_port_get_attached_sas_address(iport, &port_attached_device_address); if (sci_sas_address_compare(port_sas_address, phy_sas_address) == 0 && sci_sas_address_compare(port_attached_device_address, phy_attached_device_address) == 0) - return sci_port; + return iport; } return NULL; @@ -315,7 +315,7 @@ static enum sci_status scic_sds_mpc_agent_validate_phy_configuration( port_agent->phy_valid_port_range[phy_index].min_index = port_index; port_agent->phy_valid_port_range[phy_index].max_index = phy_index; - scic_sds_port_add_phy(&ihost->ports[port_index].sci, + scic_sds_port_add_phy(&ihost->ports[port_index], &ihost->phys[phy_index]); assigned_phy_mask |= (1 << phy_index); @@ -367,22 +367,20 @@ done: static void scic_sds_mpc_agent_link_up(struct scic_sds_controller *controller, struct scic_sds_port_configuration_agent *port_agent, - struct scic_sds_port *port, + struct isci_port *iport, struct isci_phy *iphy) { - /* If the port has an invalid handle then the phy was not assigned to - * a port. This is because the phy was not given the same SAS Address - * as the other PHYs in the port. + /* If the port is NULL then the phy was not assigned to a port. + * This is because the phy was not given the same SAS Address as + * the other PHYs in the port. */ - if (port != NULL) { - port_agent->phy_ready_mask |= (1 << scic_sds_phy_get_index(iphy)); - - scic_sds_port_link_up(port, iphy); + if (!iport) + return; - if ((port->active_phy_mask & (1 << scic_sds_phy_get_index(iphy))) != 0) { - port_agent->phy_configured_mask |= (1 << scic_sds_phy_get_index(iphy)); - } - } + port_agent->phy_ready_mask |= (1 << scic_sds_phy_get_index(iphy)); + scic_sds_port_link_up(iport, iphy); + if ((iport->active_phy_mask & (1 << scic_sds_phy_get_index(iphy)))) + port_agent->phy_configured_mask |= (1 << scic_sds_phy_get_index(iphy)); } /** @@ -405,10 +403,10 @@ static void scic_sds_mpc_agent_link_up(struct scic_sds_controller *controller, static void scic_sds_mpc_agent_link_down( struct scic_sds_controller *scic, struct scic_sds_port_configuration_agent *port_agent, - struct scic_sds_port *sci_port, + struct isci_port *iport, struct isci_phy *iphy) { - if (sci_port != NULL) { + if (iport != NULL) { /* * If we can form a new port from the remainder of the phys * then we want to start the timer to allow the SCI User to @@ -436,7 +434,7 @@ static void scic_sds_mpc_agent_link_down( SCIC_SDS_MPC_RECONFIGURATION_TIMEOUT); } - scic_sds_port_link_down(sci_port, iphy); + scic_sds_port_link_down(iport, iphy); } } @@ -496,14 +494,14 @@ static void scic_sds_apc_agent_configure_ports(struct scic_sds_controller *contr { u8 port_index; enum sci_status status; - struct scic_sds_port *port; + struct isci_port *iport; enum SCIC_SDS_APC_ACTIVITY apc_activity = SCIC_SDS_APC_SKIP_PHY; struct isci_host *ihost = scic_to_ihost(controller); - port = scic_sds_port_configuration_agent_find_port(controller, iphy); + iport = scic_sds_port_configuration_agent_find_port(controller, iphy); - if (port != NULL) { - if (scic_sds_port_is_valid_phy_assignment(port, iphy->phy_index)) + if (iport) { + if (scic_sds_port_is_valid_phy_assignment(iport, iphy->phy_index)) apc_activity = SCIC_SDS_APC_ADD_PHY; else apc_activity = SCIC_SDS_APC_SKIP_PHY; @@ -514,21 +512,19 @@ static void scic_sds_apc_agent_configure_ports(struct scic_sds_controller *contr * the timer and wait to see if a wider port can be made. * * Note the break when we reach the condition of the port id == phy id */ - for ( - port_index = port_agent->phy_valid_port_range[iphy->phy_index].min_index; - port_index <= port_agent->phy_valid_port_range[iphy->phy_index].max_index; - port_index++ - ) { + for (port_index = port_agent->phy_valid_port_range[iphy->phy_index].min_index; + port_index <= port_agent->phy_valid_port_range[iphy->phy_index].max_index; + port_index++) { - port = &ihost->ports[port_index].sci; + iport = &ihost->ports[port_index]; /* First we must make sure that this PHY can be added to this Port. */ - if (scic_sds_port_is_valid_phy_assignment(port, iphy->phy_index)) { + if (scic_sds_port_is_valid_phy_assignment(iport, iphy->phy_index)) { /* * Port contains a PHY with a greater PHY ID than the current * PHY that has gone link up. This phy can not be part of any * port so skip it and move on. */ - if (port->active_phy_mask > (1 << iphy->phy_index)) { + if (iport->active_phy_mask > (1 << iphy->phy_index)) { apc_activity = SCIC_SDS_APC_SKIP_PHY; break; } @@ -537,7 +533,7 @@ static void scic_sds_apc_agent_configure_ports(struct scic_sds_controller *contr * We have reached the end of our Port list and have not found * any reason why we should not either add the PHY to the port * or wait for more phys to become active. */ - if (port->physical_port_index == iphy->phy_index) { + if (iport->physical_port_index == iphy->phy_index) { /* * The Port either has no active PHYs. * Consider that if the port had any active PHYs we would have @@ -554,10 +550,10 @@ static void scic_sds_apc_agent_configure_ports(struct scic_sds_controller *contr * The current Port has no active PHYs and this PHY could be part * of this Port. Since we dont know as yet setup to start the * timer and see if there is a better configuration. */ - if (port->active_phy_mask == 0) { + if (iport->active_phy_mask == 0) { apc_activity = SCIC_SDS_APC_START_TIMER; } - } else if (port->active_phy_mask != 0) { + } else if (iport->active_phy_mask != 0) { /* * The Port has an active phy and the current Phy can not * participate in this port so skip the PHY and see if @@ -583,7 +579,7 @@ static void scic_sds_apc_agent_configure_ports(struct scic_sds_controller *contr switch (apc_activity) { case SCIC_SDS_APC_ADD_PHY: - status = scic_sds_port_add_phy(port, iphy); + status = scic_sds_port_add_phy(iport, iphy); if (status == SCI_SUCCESS) { port_agent->phy_configured_mask |= (1 << iphy->phy_index); @@ -625,18 +621,18 @@ static void scic_sds_apc_agent_configure_ports(struct scic_sds_controller *contr */ static void scic_sds_apc_agent_link_up(struct scic_sds_controller *scic, struct scic_sds_port_configuration_agent *port_agent, - struct scic_sds_port *sci_port, + struct isci_port *iport, struct isci_phy *iphy) { u8 phy_index = iphy->phy_index; - if (!sci_port) { + if (!iport) { /* the phy is not the part of this port */ port_agent->phy_ready_mask |= 1 << phy_index; scic_sds_apc_agent_configure_ports(scic, port_agent, iphy, true); } else { /* the phy is already the part of the port */ - u32 port_state = sci_port->sm.current_state_id; + u32 port_state = iport->sm.current_state_id; /* if the PORT'S state is resetting then the link up is from * port hard reset in this case, we need to tell the port @@ -644,7 +640,7 @@ static void scic_sds_apc_agent_link_up(struct scic_sds_controller *scic, */ BUG_ON(port_state != SCI_PORT_RESETTING); port_agent->phy_ready_mask |= 1 << phy_index; - scic_sds_port_link_up(sci_port, iphy); + scic_sds_port_link_up(iport, iphy); } } @@ -652,9 +648,9 @@ static void scic_sds_apc_agent_link_up(struct scic_sds_controller *scic, * * @controller: This is the controller object that receives the link down * notification. - * @port: This is the port object associated with the phy. If the is no + * @iport: This is the port object associated with the phy. If the is no * associated port this is an NULL. - * @phy: This is the phy object which has gone link down. + * @iphy: This is the phy object which has gone link down. * * This method handles the automatic port configuration link down * notifications. not associated with a port there is no action taken. Is it @@ -664,21 +660,20 @@ static void scic_sds_apc_agent_link_up(struct scic_sds_controller *scic, static void scic_sds_apc_agent_link_down( struct scic_sds_controller *controller, struct scic_sds_port_configuration_agent *port_agent, - struct scic_sds_port *port, + struct isci_port *iport, struct isci_phy *iphy) { port_agent->phy_ready_mask &= ~(1 << scic_sds_phy_get_index(iphy)); - if (port != NULL) { - if (port_agent->phy_configured_mask & (1 << iphy->phy_index)) { - enum sci_status status; + if (!iport) + return; + if (port_agent->phy_configured_mask & (1 << iphy->phy_index)) { + enum sci_status status; - status = scic_sds_port_remove_phy(port, iphy); + status = scic_sds_port_remove_phy(iport, iphy); - if (status == SCI_SUCCESS) { - port_agent->phy_configured_mask &= ~(1 << iphy->phy_index); - } - } + if (status == SCI_SUCCESS) + port_agent->phy_configured_mask &= ~(1 << iphy->phy_index); } } diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index 71ab9081fe2..627cf731bad 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -450,11 +450,11 @@ static void scic_sds_remote_device_start_request(struct scic_sds_remote_device * struct isci_request *ireq, enum sci_status status) { - struct scic_sds_port *sci_port = sci_dev->owning_port; + struct isci_port *iport = sci_dev->owning_port; /* cleanup requests that failed after starting on the port */ if (status != SCI_SUCCESS) - scic_sds_port_complete_io(sci_port, sci_dev, ireq); + scic_sds_port_complete_io(iport, sci_dev, ireq); else { kref_get(&sci_dev_to_idev(sci_dev)->kref); scic_sds_remote_device_increment_request_count(sci_dev); @@ -467,7 +467,7 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic { struct sci_base_state_machine *sm = &sci_dev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; - struct scic_sds_port *sci_port = sci_dev->owning_port; + struct isci_port *iport = sci_dev->owning_port; enum sci_status status; switch (state) { @@ -489,7 +489,7 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic * successful it will start the request for the port object then * increment its own request count. */ - status = scic_sds_port_start_io(sci_port, sci_dev, ireq); + status = scic_sds_port_start_io(iport, sci_dev, ireq); if (status != SCI_SUCCESS) return status; @@ -511,7 +511,7 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic enum scic_sds_remote_device_states new_state; struct sas_task *task = isci_request_access_task(ireq); - status = scic_sds_port_start_io(sci_port, sci_dev, ireq); + status = scic_sds_port_start_io(iport, sci_dev, ireq); if (status != SCI_SUCCESS) return status; @@ -536,7 +536,7 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic struct sas_task *task = isci_request_access_task(ireq); if (task->ata_task.use_ncq) { - status = scic_sds_port_start_io(sci_port, sci_dev, ireq); + status = scic_sds_port_start_io(iport, sci_dev, ireq); if (status != SCI_SUCCESS) return status; @@ -552,7 +552,7 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic case SCI_STP_DEV_AWAIT_RESET: return SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED; case SCI_SMP_DEV_IDLE: - status = scic_sds_port_start_io(sci_port, sci_dev, ireq); + status = scic_sds_port_start_io(iport, sci_dev, ireq); if (status != SCI_SUCCESS) return status; @@ -579,7 +579,7 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic return status; } -static enum sci_status common_complete_io(struct scic_sds_port *sci_port, +static enum sci_status common_complete_io(struct isci_port *iport, struct scic_sds_remote_device *sci_dev, struct isci_request *ireq) { @@ -589,7 +589,7 @@ static enum sci_status common_complete_io(struct scic_sds_port *sci_port, if (status != SCI_SUCCESS) return status; - status = scic_sds_port_complete_io(sci_port, sci_dev, ireq); + status = scic_sds_port_complete_io(iport, sci_dev, ireq); if (status != SCI_SUCCESS) return status; @@ -603,7 +603,7 @@ enum sci_status scic_sds_remote_device_complete_io(struct scic_sds_controller *s { struct sci_base_state_machine *sm = &sci_dev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; - struct scic_sds_port *sci_port = sci_dev->owning_port; + struct isci_port *iport = sci_dev->owning_port; enum sci_status status; switch (state) { @@ -621,12 +621,12 @@ enum sci_status scic_sds_remote_device_complete_io(struct scic_sds_controller *s case SCI_DEV_READY: case SCI_STP_DEV_AWAIT_RESET: case SCI_DEV_RESETTING: - status = common_complete_io(sci_port, sci_dev, ireq); + status = common_complete_io(iport, sci_dev, ireq); break; case SCI_STP_DEV_CMD: case SCI_STP_DEV_NCQ: case SCI_STP_DEV_NCQ_ERROR: - status = common_complete_io(sci_port, sci_dev, ireq); + status = common_complete_io(iport, sci_dev, ireq); if (status != SCI_SUCCESS) break; @@ -641,13 +641,13 @@ enum sci_status scic_sds_remote_device_complete_io(struct scic_sds_controller *s sci_change_state(sm, SCI_STP_DEV_IDLE); break; case SCI_SMP_DEV_CMD: - status = common_complete_io(sci_port, sci_dev, ireq); + status = common_complete_io(iport, sci_dev, ireq); if (status != SCI_SUCCESS) break; sci_change_state(sm, SCI_SMP_DEV_IDLE); break; case SCI_DEV_STOPPING: - status = common_complete_io(sci_port, sci_dev, ireq); + status = common_complete_io(iport, sci_dev, ireq); if (status != SCI_SUCCESS) break; @@ -661,7 +661,7 @@ enum sci_status scic_sds_remote_device_complete_io(struct scic_sds_controller *s if (status != SCI_SUCCESS) dev_err(scirdev_to_dev(sci_dev), "%s: Port:0x%p Device:0x%p Request:0x%p Status:0x%x " - "could not complete\n", __func__, sci_port, + "could not complete\n", __func__, iport, sci_dev, ireq, status); else isci_put_device(sci_dev_to_idev(sci_dev)); @@ -684,7 +684,7 @@ enum sci_status scic_sds_remote_device_start_task(struct scic_sds_controller *sc { struct sci_base_state_machine *sm = &sci_dev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; - struct scic_sds_port *sci_port = sci_dev->owning_port; + struct isci_port *iport = sci_dev->owning_port; enum sci_status status; switch (state) { @@ -706,7 +706,7 @@ enum sci_status scic_sds_remote_device_start_task(struct scic_sds_controller *sc case SCI_STP_DEV_NCQ: case SCI_STP_DEV_NCQ_ERROR: case SCI_STP_DEV_AWAIT_RESET: - status = scic_sds_port_start_io(sci_port, sci_dev, ireq); + status = scic_sds_port_start_io(iport, sci_dev, ireq); if (status != SCI_SUCCESS) return status; @@ -746,7 +746,7 @@ enum sci_status scic_sds_remote_device_start_task(struct scic_sds_controller *sc */ return SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS; case SCI_DEV_READY: - status = scic_sds_port_start_io(sci_port, sci_dev, ireq); + status = scic_sds_port_start_io(iport, sci_dev, ireq); if (status != SCI_SUCCESS) return status; @@ -1064,10 +1064,10 @@ static const struct sci_base_state scic_sds_remote_device_state_table[] = { * scic_remote_device_[de]a_construct(). scic_remote_device_destruct() * frees the remote_node_context(s) for the device. */ -static void scic_remote_device_construct(struct scic_sds_port *sci_port, +static void scic_remote_device_construct(struct isci_port *iport, struct scic_sds_remote_device *sci_dev) { - sci_dev->owning_port = sci_port; + sci_dev->owning_port = iport; sci_dev->started_request_count = 0; sci_init_sm(&sci_dev->sm, scic_sds_remote_device_state_table, SCI_DEV_INITIAL); @@ -1090,20 +1090,20 @@ static void scic_remote_device_construct(struct scic_sds_port *sci_port, * sata-only controller instance. * SCI_FAILURE_INSUFFICIENT_RESOURCES - remote node contexts exhausted. */ -static enum sci_status scic_remote_device_da_construct(struct scic_sds_port *sci_port, +static enum sci_status scic_remote_device_da_construct(struct isci_port *iport, struct scic_sds_remote_device *sci_dev) { enum sci_status status; struct domain_device *dev = sci_dev_to_domain(sci_dev); - scic_remote_device_construct(sci_port, sci_dev); + scic_remote_device_construct(iport, sci_dev); /* * This information is request to determine how many remote node context * entries will be needed to store the remote node. */ sci_dev->is_direct_attached = true; - status = scic_sds_controller_allocate_remote_node_context(sci_port->owning_controller, + status = scic_sds_controller_allocate_remote_node_context(iport->owning_controller, sci_dev, &sci_dev->rnc.remote_node_index); @@ -1116,7 +1116,7 @@ static enum sci_status scic_remote_device_da_construct(struct scic_sds_port *sci else return SCI_FAILURE_UNSUPPORTED_PROTOCOL; - sci_dev->connection_rate = scic_sds_port_get_max_allowed_speed(sci_port); + sci_dev->connection_rate = scic_sds_port_get_max_allowed_speed(iport); /* / @todo Should I assign the port width by reading all of the phys on the port? */ sci_dev->device_port_width = 1; @@ -1136,15 +1136,15 @@ static enum sci_status scic_remote_device_da_construct(struct scic_sds_port *sci * sata-only controller instance. * SCI_FAILURE_INSUFFICIENT_RESOURCES - remote node contexts exhausted. */ -static enum sci_status scic_remote_device_ea_construct(struct scic_sds_port *sci_port, +static enum sci_status scic_remote_device_ea_construct(struct isci_port *iport, struct scic_sds_remote_device *sci_dev) { struct domain_device *dev = sci_dev_to_domain(sci_dev); enum sci_status status; - scic_remote_device_construct(sci_port, sci_dev); + scic_remote_device_construct(iport, sci_dev); - status = scic_sds_controller_allocate_remote_node_context(sci_port->owning_controller, + status = scic_sds_controller_allocate_remote_node_context(iport->owning_controller, sci_dev, &sci_dev->rnc.remote_node_index); if (status != SCI_SUCCESS) @@ -1163,7 +1163,7 @@ static enum sci_status scic_remote_device_ea_construct(struct scic_sds_port *sci * connection the logical link rate is that same as the * physical. Furthermore, the SAS-2 and SAS-1.1 fields overlay * one another, so this code works for both situations. */ - sci_dev->connection_rate = min_t(u16, scic_sds_port_get_max_allowed_speed(sci_port), + sci_dev->connection_rate = min_t(u16, scic_sds_port_get_max_allowed_speed(iport), dev->linkrate); /* / @todo Should I assign the port width by reading all of the phys on the port? */ @@ -1212,15 +1212,14 @@ static enum sci_status scic_remote_device_start(struct scic_sds_remote_device *s static enum sci_status isci_remote_device_construct(struct isci_port *iport, struct isci_remote_device *idev) { - struct scic_sds_port *sci_port = &iport->sci; struct isci_host *ihost = iport->isci_host; struct domain_device *dev = idev->domain_dev; enum sci_status status; if (dev->parent && dev_is_expander(dev->parent)) - status = scic_remote_device_ea_construct(sci_port, &idev->sci); + status = scic_remote_device_ea_construct(iport, &idev->sci); else - status = scic_remote_device_da_construct(sci_port, &idev->sci); + status = scic_remote_device_da_construct(iport, &idev->sci); if (status != SCI_SUCCESS) { dev_dbg(&ihost->pdev->dev, "%s: construct failed: %d\n", diff --git a/drivers/scsi/isci/remote_device.h b/drivers/scsi/isci/remote_device.h index 6ac5dfb7d1d..578d75b8cd1 100644 --- a/drivers/scsi/isci/remote_device.h +++ b/drivers/scsi/isci/remote_device.h @@ -100,7 +100,7 @@ struct scic_sds_remote_device { * This filed contains a pointer back to the port to which this device * is assigned. */ - struct scic_sds_port *owning_port; + struct isci_port *owning_port; /** * This field contains the SCU silicon remote node context specific @@ -387,14 +387,6 @@ static inline bool dev_is_expander(struct domain_device *dev) #define scic_sds_remote_device_get_request_count(sci_dev) \ ((sci_dev)->started_request_count) -/** - * scic_sds_remote_device_get_port() - - * - * This macro returns the owning port of this remote device obejct. - */ -#define scic_sds_remote_device_get_port(sci_dev) \ - ((sci_dev)->owning_port) - /** * scic_sds_remote_device_get_controller() - * diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index c544bc79ce1..2d29abf3ce1 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -210,10 +210,10 @@ static void scu_ssp_reqeust_construct_task_context( { dma_addr_t dma_addr; struct scic_sds_remote_device *target_device; - struct scic_sds_port *target_port; + struct isci_port *iport; target_device = scic_sds_request_get_device(ireq); - target_port = scic_sds_request_get_port(ireq); + iport = scic_sds_request_get_port(ireq); /* Fill in the TC with the its required data */ task_context->abort = 0; @@ -222,8 +222,7 @@ static void scu_ssp_reqeust_construct_task_context( task_context->connection_rate = target_device->connection_rate; task_context->protocol_engine_index = scic_sds_controller_get_protocol_engine_group(controller); - task_context->logical_port_index = - scic_sds_port_get_index(target_port); + task_context->logical_port_index = scic_sds_port_get_index(iport); task_context->protocol_type = SCU_TASK_CONTEXT_PROTOCOL_SSP; task_context->valid = SCU_TASK_CONTEXT_VALID; task_context->context_type = SCU_TASK_CONTEXT_TYPE; @@ -245,11 +244,11 @@ static void scu_ssp_reqeust_construct_task_context( task_context->task_phase = 0x01; ireq->post_context = (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | - (scic_sds_controller_get_protocol_engine_group(controller) << - SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | - (scic_sds_port_get_index(target_port) << - SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | - ISCI_TAG_TCI(ireq->io_tag)); + (scic_sds_controller_get_protocol_engine_group(controller) << + SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | + (scic_sds_port_get_index(iport) << + SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | + ISCI_TAG_TCI(ireq->io_tag)); /* * Copy the physical address for the command buffer to the @@ -350,10 +349,10 @@ static void scu_sata_reqeust_construct_task_context( { dma_addr_t dma_addr; struct scic_sds_remote_device *target_device; - struct scic_sds_port *target_port; + struct isci_port *iport; target_device = scic_sds_request_get_device(ireq); - target_port = scic_sds_request_get_port(ireq); + iport = scic_sds_request_get_port(ireq); /* Fill in the TC with the its required data */ task_context->abort = 0; @@ -363,7 +362,7 @@ static void scu_sata_reqeust_construct_task_context( task_context->protocol_engine_index = scic_sds_controller_get_protocol_engine_group(controller); task_context->logical_port_index = - scic_sds_port_get_index(target_port); + scic_sds_port_get_index(iport); task_context->protocol_type = SCU_TASK_CONTEXT_PROTOCOL_STP; task_context->valid = SCU_TASK_CONTEXT_VALID; task_context->context_type = SCU_TASK_CONTEXT_TYPE; @@ -391,7 +390,7 @@ static void scu_sata_reqeust_construct_task_context( ireq->post_context = (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | (scic_sds_controller_get_protocol_engine_group(controller) << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | - (scic_sds_port_get_index(target_port) << + (scic_sds_port_get_index(iport) << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | ISCI_TAG_TCI(ireq->io_tag)); /* @@ -3105,7 +3104,7 @@ scic_io_request_construct_smp(struct device *dev, struct scatterlist *sg = &task->smp_task.smp_req; struct scic_sds_remote_device *sci_dev; struct scu_task_context *task_context; - struct scic_sds_port *sci_port; + struct isci_port *iport; struct smp_req *smp_req; void *kaddr; u8 req_len; @@ -3149,7 +3148,7 @@ scic_io_request_construct_smp(struct device *dev, task_context = ireq->tc; sci_dev = scic_sds_request_get_device(ireq); - sci_port = scic_sds_request_get_port(ireq); + iport = scic_sds_request_get_port(ireq); /* * Fill in the TC with the its required data @@ -3160,7 +3159,7 @@ scic_io_request_construct_smp(struct device *dev, task_context->connection_rate = sci_dev->connection_rate; task_context->protocol_engine_index = scic_sds_controller_get_protocol_engine_group(scic); - task_context->logical_port_index = scic_sds_port_get_index(sci_port); + task_context->logical_port_index = scic_sds_port_get_index(iport); task_context->protocol_type = SCU_TASK_CONTEXT_PROTOCOL_SMP; task_context->abort = 0; task_context->valid = SCU_TASK_CONTEXT_VALID; @@ -3204,7 +3203,7 @@ scic_io_request_construct_smp(struct device *dev, ireq->post_context = (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | (scic_sds_controller_get_protocol_engine_group(scic) << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | - (scic_sds_port_get_index(sci_port) << + (scic_sds_port_get_index(iport) << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | ISCI_TAG_TCI(ireq->io_tag)); /* -- cgit v1.2.3-70-g09d2 From 78a6f06e0e82125787d7aa308fe28c2c8381540c Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 30 Jun 2011 16:31:37 -0700 Subject: isci: unify isci_remote_device and scic_sds_remote_device Remove the distinction between these two implementations and unify on isci_remote_device (local instances named idev). Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/host.c | 60 ++--- drivers/scsi/isci/host.h | 27 +-- drivers/scsi/isci/port.c | 4 +- drivers/scsi/isci/port.h | 6 +- drivers/scsi/isci/remote_device.c | 396 ++++++++++++++++---------------- drivers/scsi/isci/remote_device.h | 148 ++++-------- drivers/scsi/isci/remote_node_context.c | 48 ++-- drivers/scsi/isci/remote_node_context.h | 2 +- drivers/scsi/isci/request.c | 60 +++-- drivers/scsi/isci/request.h | 4 +- drivers/scsi/isci/task.c | 47 ++-- 11 files changed, 365 insertions(+), 437 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index 4e11f9e6d76..45d7f71c609 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -272,7 +272,7 @@ static void scic_sds_controller_sdma_completion(struct scic_sds_controller *scic { u32 index; struct isci_request *ireq; - struct scic_sds_remote_device *device; + struct isci_remote_device *idev; index = SCU_GET_COMPLETION_INDEX(completion_entry); @@ -289,9 +289,9 @@ static void scic_sds_controller_sdma_completion(struct scic_sds_controller *scic case SCU_CONTEXT_COMMAND_REQUEST_TYPE_DUMP_RNC: case SCU_CONTEXT_COMMAND_REQUEST_TYPE_OTHER_RNC: case SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_RNC: - device = scic->device_table[index]; + idev = scic->device_table[index]; dev_warn(scic_to_dev(scic), "%s: %x for device %p\n", - __func__, completion_entry, device); + __func__, completion_entry, idev); /* @todo For a port RNC operation we need to fail the * device */ @@ -312,7 +312,7 @@ static void scic_sds_controller_unsolicited_frame(struct scic_sds_controller *sc struct isci_host *ihost = scic_to_ihost(scic); struct scu_unsolicited_frame_header *frame_header; struct isci_phy *iphy; - struct scic_sds_remote_device *device; + struct isci_remote_device *idev; enum sci_status result = SCI_FAILURE; @@ -348,12 +348,12 @@ static void scic_sds_controller_unsolicited_frame(struct scic_sds_controller *sc result = scic_sds_phy_frame_handler(iphy, frame_index); } else { if (index < scic->remote_node_entries) - device = scic->device_table[index]; + idev = scic->device_table[index]; else - device = NULL; + idev = NULL; - if (device != NULL) - result = scic_sds_remote_device_frame_handler(device, frame_index); + if (idev != NULL) + result = scic_sds_remote_device_frame_handler(idev, frame_index); else scic_sds_controller_release_frame(scic, frame_index); } @@ -370,7 +370,7 @@ static void scic_sds_controller_event_completion(struct scic_sds_controller *sci u32 completion_entry) { struct isci_host *ihost = scic_to_ihost(scic); - struct scic_sds_remote_device *device; + struct isci_remote_device *idev; struct isci_request *ireq; struct isci_phy *iphy; u32 index; @@ -426,9 +426,9 @@ static void scic_sds_controller_event_completion(struct scic_sds_controller *sci break; case SCU_EVENT_SPECIFIC_IT_NEXUS_TIMEOUT: - device = scic->device_table[index]; - if (device != NULL) - scic_sds_remote_device_event_handler(device, completion_entry); + idev = scic->device_table[index]; + if (idev != NULL) + scic_sds_remote_device_event_handler(idev, completion_entry); else dev_warn(scic_to_dev(scic), "%s: SCIC Controller 0x%p received " @@ -460,10 +460,10 @@ static void scic_sds_controller_event_completion(struct scic_sds_controller *sci case SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX: case SCU_EVENT_TYPE_RNC_OPS_MISC: if (index < scic->remote_node_entries) { - device = scic->device_table[index]; + idev = scic->device_table[index]; - if (device != NULL) - scic_sds_remote_device_event_handler(device, completion_entry); + if (idev != NULL) + scic_sds_remote_device_event_handler(idev, completion_entry); } else dev_err(scic_to_dev(scic), "%s: SCIC Controller 0x%p received event 0x%x " @@ -2549,13 +2549,13 @@ static bool scic_sds_controller_has_remote_devices_stopping( * object that the remote device has stopped. */ void scic_sds_controller_remote_device_stopped(struct scic_sds_controller *scic, - struct scic_sds_remote_device *sci_dev) + struct isci_remote_device *idev) { if (scic->sm.current_state_id != SCIC_STOPPING) { dev_dbg(scic_to_dev(scic), "SCIC Controller 0x%p remote device stopped event " "from device 0x%p in unexpected state %d\n", - scic, sci_dev, + scic, idev, scic->sm.current_state_id); return; } @@ -2622,18 +2622,18 @@ struct isci_request *scic_request_by_tag(struct scic_sds_controller *scic, u16 i */ enum sci_status scic_sds_controller_allocate_remote_node_context( struct scic_sds_controller *scic, - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, u16 *node_id) { u16 node_index; - u32 remote_node_count = scic_sds_remote_device_node_count(sci_dev); + u32 remote_node_count = scic_sds_remote_device_node_count(idev); node_index = scic_sds_remote_node_table_allocate_remote_node( &scic->available_remote_nodes, remote_node_count ); if (node_index != SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) { - scic->device_table[node_index] = sci_dev; + scic->device_table[node_index] = idev; *node_id = node_index; @@ -2654,12 +2654,12 @@ enum sci_status scic_sds_controller_allocate_remote_node_context( */ void scic_sds_controller_free_remote_node_context( struct scic_sds_controller *scic, - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, u16 node_id) { - u32 remote_node_count = scic_sds_remote_device_node_count(sci_dev); + u32 remote_node_count = scic_sds_remote_device_node_count(idev); - if (scic->device_table[node_id] == sci_dev) { + if (scic->device_table[node_id] == idev) { scic->device_table[node_id] = NULL; scic_sds_remote_node_table_release_remote_node_index( @@ -2798,7 +2798,7 @@ enum sci_status isci_free_tag(struct isci_host *ihost, u16 io_tag) * user desires to be utilized for this request. */ enum sci_status scic_controller_start_io(struct scic_sds_controller *scic, - struct scic_sds_remote_device *rdev, + struct isci_remote_device *idev, struct isci_request *ireq) { enum sci_status status; @@ -2808,7 +2808,7 @@ enum sci_status scic_controller_start_io(struct scic_sds_controller *scic, return SCI_FAILURE_INVALID_STATE; } - status = scic_sds_remote_device_start_io(scic, rdev, ireq); + status = scic_sds_remote_device_start_io(scic, idev, ireq); if (status != SCI_SUCCESS) return status; @@ -2835,7 +2835,7 @@ enum sci_status scic_controller_start_io(struct scic_sds_controller *scic, */ enum sci_status scic_controller_terminate_request( struct scic_sds_controller *scic, - struct scic_sds_remote_device *rdev, + struct isci_remote_device *idev, struct isci_request *ireq) { enum sci_status status; @@ -2873,7 +2873,7 @@ enum sci_status scic_controller_terminate_request( */ enum sci_status scic_controller_complete_io( struct scic_sds_controller *scic, - struct scic_sds_remote_device *rdev, + struct isci_remote_device *idev, struct isci_request *ireq) { enum sci_status status; @@ -2884,7 +2884,7 @@ enum sci_status scic_controller_complete_io( /* XXX: Implement this function */ return SCI_FAILURE; case SCIC_READY: - status = scic_sds_remote_device_complete_io(scic, rdev, ireq); + status = scic_sds_remote_device_complete_io(scic, idev, ireq); if (status != SCI_SUCCESS) return status; @@ -2923,7 +2923,7 @@ enum sci_status scic_controller_continue_io(struct isci_request *ireq) */ enum sci_task_status scic_controller_start_task( struct scic_sds_controller *scic, - struct scic_sds_remote_device *rdev, + struct isci_remote_device *idev, struct isci_request *ireq) { enum sci_status status; @@ -2936,7 +2936,7 @@ enum sci_task_status scic_controller_start_task( return SCI_TASK_FAILURE_INVALID_STATE; } - status = scic_sds_remote_device_start_task(scic, rdev, ireq); + status = scic_sds_remote_device_start_task(scic, idev, ireq); switch (status) { case SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS: set_bit(IREQ_ACTIVE, &ireq->flags); diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index fb8048e5fce..ca2e3b0ee0d 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -163,7 +163,7 @@ struct scic_sds_controller { * objects that need to handle device completion notifications from the * hardware. The table is RNi based. */ - struct scic_sds_remote_device *device_table[SCI_MAX_REMOTE_DEVICES]; + struct isci_remote_device *device_table[SCI_MAX_REMOTE_DEVICES]; /** * This field is the free RNi data structure @@ -488,12 +488,12 @@ static inline struct isci_host *scic_to_ihost(struct scic_sds_controller *scic) #define ISCI_TAG_TCI(tag) ((tag) & (SCI_MAX_IO_REQUESTS-1)) /* expander attached sata devices require 3 rnc slots */ -static inline int scic_sds_remote_device_node_count(struct scic_sds_remote_device *sci_dev) +static inline int scic_sds_remote_device_node_count(struct isci_remote_device *idev) { - struct domain_device *dev = sci_dev_to_domain(sci_dev); + struct domain_device *dev = idev->domain_dev; if ((dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) && - !sci_dev->is_direct_attached) + !idev->is_direct_attached) return SCU_STP_REMOTE_NODE_COUNT; return SCU_SSP_REMOTE_NODE_COUNT; } @@ -541,11 +541,8 @@ static inline struct device *sciport_to_dev(struct isci_port *iport) return &iport->isci_host->pdev->dev; } -static inline struct device *scirdev_to_dev(struct scic_sds_remote_device *sci_dev) +static inline struct device *scirdev_to_dev(struct isci_remote_device *idev) { - struct isci_remote_device *idev = - container_of(sci_dev, typeof(*idev), sci); - if (!idev || !idev->isci_port || !idev->isci_port->isci_host) return NULL; @@ -589,11 +586,11 @@ void scic_sds_controller_copy_sata_response(void *response_buffer, void *frame_header, void *frame_buffer); enum sci_status scic_sds_controller_allocate_remote_node_context(struct scic_sds_controller *scic, - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, u16 *node_id); void scic_sds_controller_free_remote_node_context( struct scic_sds_controller *scic, - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, u16 node_id); union scu_remote_node_context *scic_sds_controller_get_remote_node_context_buffer( struct scic_sds_controller *scic, @@ -622,7 +619,7 @@ void scic_sds_controller_link_down( void scic_sds_controller_remote_device_stopped( struct scic_sds_controller *scic, - struct scic_sds_remote_device *sci_dev); + struct isci_remote_device *idev); void scic_sds_controller_copy_task_context( struct scic_sds_controller *scic, @@ -662,22 +659,22 @@ void scic_controller_disable_interrupts( enum sci_status scic_controller_start_io( struct scic_sds_controller *scic, - struct scic_sds_remote_device *remote_device, + struct isci_remote_device *idev, struct isci_request *ireq); enum sci_task_status scic_controller_start_task( struct scic_sds_controller *scic, - struct scic_sds_remote_device *remote_device, + struct isci_remote_device *idev, struct isci_request *ireq); enum sci_status scic_controller_terminate_request( struct scic_sds_controller *scic, - struct scic_sds_remote_device *remote_device, + struct isci_remote_device *idev, struct isci_request *ireq); enum sci_status scic_controller_complete_io( struct scic_sds_controller *scic, - struct scic_sds_remote_device *remote_device, + struct isci_remote_device *idev, struct isci_request *ireq); void scic_sds_port_configuration_agent_construct( diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 04591882ee7..df37b1bf7d1 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -1541,7 +1541,7 @@ enum sci_status scic_sds_port_link_down(struct isci_port *iport, } enum sci_status scic_sds_port_start_io(struct isci_port *iport, - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, struct isci_request *ireq) { enum scic_sds_port_states state; @@ -1561,7 +1561,7 @@ enum sci_status scic_sds_port_start_io(struct isci_port *iport, } enum sci_status scic_sds_port_complete_io(struct isci_port *iport, - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, struct isci_request *ireq) { enum scic_sds_port_states state; diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index cdea48ece00..b9bc89bf651 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -283,15 +283,15 @@ enum sci_status scic_sds_port_link_down(struct isci_port *iport, struct isci_phy *iphy); struct isci_request; -struct scic_sds_remote_device; +struct isci_remote_device; enum sci_status scic_sds_port_start_io( struct isci_port *iport, - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, struct isci_request *ireq); enum sci_status scic_sds_port_complete_io( struct isci_port *iport, - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, struct isci_request *ireq); enum sas_linkrate scic_sds_port_get_max_allowed_speed( diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index 627cf731bad..3b0234049a3 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -93,7 +93,7 @@ static void isci_remote_device_not_ready(struct isci_host *ihost, __func__, idev, ireq); scic_controller_terminate_request(&ihost->sci, - &idev->sci, + idev, ireq); } /* Fall through into the default case... */ @@ -127,15 +127,15 @@ static void isci_remote_device_ready(struct isci_host *ihost, struct isci_remote */ static void rnc_destruct_done(void *_dev) { - struct scic_sds_remote_device *sci_dev = _dev; + struct isci_remote_device *idev = _dev; - BUG_ON(sci_dev->started_request_count != 0); - sci_change_state(&sci_dev->sm, SCI_DEV_STOPPED); + BUG_ON(idev->started_request_count != 0); + sci_change_state(&idev->sm, SCI_DEV_STOPPED); } -static enum sci_status scic_sds_remote_device_terminate_requests(struct scic_sds_remote_device *sci_dev) +static enum sci_status scic_sds_remote_device_terminate_requests(struct isci_remote_device *idev) { - struct scic_sds_controller *scic = sci_dev->owning_port->owning_controller; + struct scic_sds_controller *scic = idev->owning_port->owning_controller; struct isci_host *ihost = scic_to_ihost(scic); enum sci_status status = SCI_SUCCESS; u32 i; @@ -145,10 +145,10 @@ static enum sci_status scic_sds_remote_device_terminate_requests(struct scic_sds enum sci_status s; if (!test_bit(IREQ_ACTIVE, &ireq->flags) || - ireq->target_device != sci_dev) + ireq->target_device != idev) continue; - s = scic_controller_terminate_request(scic, sci_dev, ireq); + s = scic_controller_terminate_request(scic, idev, ireq); if (s != SCI_SUCCESS) status = s; } @@ -156,10 +156,10 @@ static enum sci_status scic_sds_remote_device_terminate_requests(struct scic_sds return status; } -enum sci_status scic_remote_device_stop(struct scic_sds_remote_device *sci_dev, +enum sci_status scic_remote_device_stop(struct isci_remote_device *idev, u32 timeout) { - struct sci_base_state_machine *sm = &sci_dev->sm; + struct sci_base_state_machine *sm = &idev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; switch (state) { @@ -167,16 +167,16 @@ enum sci_status scic_remote_device_stop(struct scic_sds_remote_device *sci_dev, case SCI_DEV_FAILED: case SCI_DEV_FINAL: default: - dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n", + dev_warn(scirdev_to_dev(idev), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; case SCI_DEV_STOPPED: return SCI_SUCCESS; case SCI_DEV_STARTING: /* device not started so there had better be no requests */ - BUG_ON(sci_dev->started_request_count != 0); - scic_sds_remote_node_context_destruct(&sci_dev->rnc, - rnc_destruct_done, sci_dev); + BUG_ON(idev->started_request_count != 0); + scic_sds_remote_node_context_destruct(&idev->rnc, + rnc_destruct_done, idev); /* Transition to the stopping state and wait for the * remote node to complete being posted and invalidated. */ @@ -191,28 +191,28 @@ enum sci_status scic_remote_device_stop(struct scic_sds_remote_device *sci_dev, case SCI_SMP_DEV_IDLE: case SCI_SMP_DEV_CMD: sci_change_state(sm, SCI_DEV_STOPPING); - if (sci_dev->started_request_count == 0) { - scic_sds_remote_node_context_destruct(&sci_dev->rnc, - rnc_destruct_done, sci_dev); + if (idev->started_request_count == 0) { + scic_sds_remote_node_context_destruct(&idev->rnc, + rnc_destruct_done, idev); return SCI_SUCCESS; } else - return scic_sds_remote_device_terminate_requests(sci_dev); + return scic_sds_remote_device_terminate_requests(idev); break; case SCI_DEV_STOPPING: /* All requests should have been terminated, but if there is an * attempt to stop a device already in the stopping state, then * try again to terminate. */ - return scic_sds_remote_device_terminate_requests(sci_dev); + return scic_sds_remote_device_terminate_requests(idev); case SCI_DEV_RESETTING: sci_change_state(sm, SCI_DEV_STOPPING); return SCI_SUCCESS; } } -enum sci_status scic_remote_device_reset(struct scic_sds_remote_device *sci_dev) +enum sci_status scic_remote_device_reset(struct isci_remote_device *idev) { - struct sci_base_state_machine *sm = &sci_dev->sm; + struct sci_base_state_machine *sm = &idev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; switch (state) { @@ -226,7 +226,7 @@ enum sci_status scic_remote_device_reset(struct scic_sds_remote_device *sci_dev) case SCI_DEV_RESETTING: case SCI_DEV_FINAL: default: - dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n", + dev_warn(scirdev_to_dev(idev), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; case SCI_DEV_READY: @@ -240,13 +240,13 @@ enum sci_status scic_remote_device_reset(struct scic_sds_remote_device *sci_dev) } } -enum sci_status scic_remote_device_reset_complete(struct scic_sds_remote_device *sci_dev) +enum sci_status scic_remote_device_reset_complete(struct isci_remote_device *idev) { - struct sci_base_state_machine *sm = &sci_dev->sm; + struct sci_base_state_machine *sm = &idev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; if (state != SCI_DEV_RESETTING) { - dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n", + dev_warn(scirdev_to_dev(idev), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } @@ -255,28 +255,28 @@ enum sci_status scic_remote_device_reset_complete(struct scic_sds_remote_device return SCI_SUCCESS; } -enum sci_status scic_sds_remote_device_suspend(struct scic_sds_remote_device *sci_dev, +enum sci_status scic_sds_remote_device_suspend(struct isci_remote_device *idev, u32 suspend_type) { - struct sci_base_state_machine *sm = &sci_dev->sm; + struct sci_base_state_machine *sm = &idev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; if (state != SCI_STP_DEV_CMD) { - dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n", + dev_warn(scirdev_to_dev(idev), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } - return scic_sds_remote_node_context_suspend(&sci_dev->rnc, + return scic_sds_remote_node_context_suspend(&idev->rnc, suspend_type, NULL, NULL); } -enum sci_status scic_sds_remote_device_frame_handler(struct scic_sds_remote_device *sci_dev, +enum sci_status scic_sds_remote_device_frame_handler(struct isci_remote_device *idev, u32 frame_index) { - struct sci_base_state_machine *sm = &sci_dev->sm; + struct sci_base_state_machine *sm = &idev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; - struct scic_sds_controller *scic = sci_dev->owning_port->owning_controller; + struct scic_sds_controller *scic = idev->owning_port->owning_controller; enum sci_status status; switch (state) { @@ -287,7 +287,7 @@ enum sci_status scic_sds_remote_device_frame_handler(struct scic_sds_remote_devi case SCI_SMP_DEV_IDLE: case SCI_DEV_FINAL: default: - dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n", + dev_warn(scirdev_to_dev(idev), "%s: in wrong state: %d\n", __func__, state); /* Return the frame back to the controller */ scic_sds_controller_release_frame(scic, frame_index); @@ -313,7 +313,7 @@ enum sci_status scic_sds_remote_device_frame_handler(struct scic_sds_remote_devi sci_swab32_cpy(&hdr, frame_header, word_cnt); ireq = scic_request_by_tag(scic, be16_to_cpu(hdr.tag)); - if (ireq && ireq->target_device == sci_dev) { + if (ireq && ireq->target_device == idev) { /* The IO request is now in charge of releasing the frame */ status = scic_sds_io_request_frame_handler(ireq, frame_index); } else { @@ -335,7 +335,7 @@ enum sci_status scic_sds_remote_device_frame_handler(struct scic_sds_remote_devi if (hdr->fis_type == FIS_SETDEVBITS && (hdr->status & ATA_ERR)) { - sci_dev->not_ready_reason = SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED; + idev->not_ready_reason = SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED; /* TODO Check sactive and complete associated IO if any. */ sci_change_state(sm, SCI_STP_DEV_NCQ_ERROR); @@ -345,8 +345,8 @@ enum sci_status scic_sds_remote_device_frame_handler(struct scic_sds_remote_devi * Some devices return D2H FIS when an NCQ error is detected. * Treat this like an SDB error FIS ready reason. */ - sci_dev->not_ready_reason = SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED; - sci_change_state(&sci_dev->sm, SCI_STP_DEV_NCQ_ERROR); + idev->not_ready_reason = SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED; + sci_change_state(&idev->sm, SCI_STP_DEV_NCQ_ERROR); } else status = SCI_FAILURE; @@ -359,17 +359,17 @@ enum sci_status scic_sds_remote_device_frame_handler(struct scic_sds_remote_devi * in this state. All unsolicited frames are forwarded to the io request * object. */ - status = scic_sds_io_request_frame_handler(sci_dev->working_request, frame_index); + status = scic_sds_io_request_frame_handler(idev->working_request, frame_index); break; } return status; } -static bool is_remote_device_ready(struct scic_sds_remote_device *sci_dev) +static bool is_remote_device_ready(struct isci_remote_device *idev) { - struct sci_base_state_machine *sm = &sci_dev->sm; + struct sci_base_state_machine *sm = &idev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; switch (state) { @@ -387,10 +387,10 @@ static bool is_remote_device_ready(struct scic_sds_remote_device *sci_dev) } } -enum sci_status scic_sds_remote_device_event_handler(struct scic_sds_remote_device *sci_dev, +enum sci_status scic_sds_remote_device_event_handler(struct isci_remote_device *idev, u32 event_code) { - struct sci_base_state_machine *sm = &sci_dev->sm; + struct sci_base_state_machine *sm = &idev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; enum sci_status status; @@ -398,21 +398,21 @@ enum sci_status scic_sds_remote_device_event_handler(struct scic_sds_remote_devi case SCU_EVENT_TYPE_RNC_OPS_MISC: case SCU_EVENT_TYPE_RNC_SUSPEND_TX: case SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX: - status = scic_sds_remote_node_context_event_handler(&sci_dev->rnc, event_code); + status = scic_sds_remote_node_context_event_handler(&idev->rnc, event_code); break; case SCU_EVENT_TYPE_PTX_SCHEDULE_EVENT: if (scu_get_event_code(event_code) == SCU_EVENT_IT_NEXUS_TIMEOUT) { status = SCI_SUCCESS; /* Suspend the associated RNC */ - scic_sds_remote_node_context_suspend(&sci_dev->rnc, + scic_sds_remote_node_context_suspend(&idev->rnc, SCI_SOFTWARE_SUSPENSION, NULL, NULL); - dev_dbg(scirdev_to_dev(sci_dev), + dev_dbg(scirdev_to_dev(idev), "%s: device: %p event code: %x: %s\n", - __func__, sci_dev, event_code, - is_remote_device_ready(sci_dev) + __func__, idev, event_code, + is_remote_device_ready(idev) ? "I_T_Nexus_Timeout event" : "I_T_Nexus_Timeout event in wrong state"); @@ -420,10 +420,10 @@ enum sci_status scic_sds_remote_device_event_handler(struct scic_sds_remote_devi } /* Else, fall through and treat as unhandled... */ default: - dev_dbg(scirdev_to_dev(sci_dev), + dev_dbg(scirdev_to_dev(idev), "%s: device: %p event code: %x: %s\n", - __func__, sci_dev, event_code, - is_remote_device_ready(sci_dev) + __func__, idev, event_code, + is_remote_device_ready(idev) ? "unexpected event" : "unexpected event in wrong state"); status = SCI_FAILURE_INVALID_STATE; @@ -440,34 +440,34 @@ enum sci_status scic_sds_remote_device_event_handler(struct scic_sds_remote_devi */ if (scu_get_event_type(event_code) == SCU_EVENT_TYPE_RNC_SUSPEND_TX || scu_get_event_type(event_code) == SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX) - status = scic_sds_remote_node_context_resume(&sci_dev->rnc, NULL, NULL); + status = scic_sds_remote_node_context_resume(&idev->rnc, NULL, NULL); } return status; } -static void scic_sds_remote_device_start_request(struct scic_sds_remote_device *sci_dev, +static void scic_sds_remote_device_start_request(struct isci_remote_device *idev, struct isci_request *ireq, enum sci_status status) { - struct isci_port *iport = sci_dev->owning_port; + struct isci_port *iport = idev->owning_port; /* cleanup requests that failed after starting on the port */ if (status != SCI_SUCCESS) - scic_sds_port_complete_io(iport, sci_dev, ireq); + scic_sds_port_complete_io(iport, idev, ireq); else { - kref_get(&sci_dev_to_idev(sci_dev)->kref); - scic_sds_remote_device_increment_request_count(sci_dev); + kref_get(&idev->kref); + scic_sds_remote_device_increment_request_count(idev); } } enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic, - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, struct isci_request *ireq) { - struct sci_base_state_machine *sm = &sci_dev->sm; + struct sci_base_state_machine *sm = &idev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; - struct isci_port *iport = sci_dev->owning_port; + struct isci_port *iport = idev->owning_port; enum sci_status status; switch (state) { @@ -480,7 +480,7 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic case SCI_DEV_RESETTING: case SCI_DEV_FINAL: default: - dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n", + dev_warn(scirdev_to_dev(idev), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; case SCI_DEV_READY: @@ -489,11 +489,11 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic * successful it will start the request for the port object then * increment its own request count. */ - status = scic_sds_port_start_io(iport, sci_dev, ireq); + status = scic_sds_port_start_io(iport, idev, ireq); if (status != SCI_SUCCESS) return status; - status = scic_sds_remote_node_context_start_io(&sci_dev->rnc, ireq); + status = scic_sds_remote_node_context_start_io(&idev->rnc, ireq); if (status != SCI_SUCCESS) break; @@ -511,11 +511,11 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic enum scic_sds_remote_device_states new_state; struct sas_task *task = isci_request_access_task(ireq); - status = scic_sds_port_start_io(iport, sci_dev, ireq); + status = scic_sds_port_start_io(iport, idev, ireq); if (status != SCI_SUCCESS) return status; - status = scic_sds_remote_node_context_start_io(&sci_dev->rnc, ireq); + status = scic_sds_remote_node_context_start_io(&idev->rnc, ireq); if (status != SCI_SUCCESS) break; @@ -526,7 +526,7 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic if (task->ata_task.use_ncq) new_state = SCI_STP_DEV_NCQ; else { - sci_dev->working_request = ireq; + idev->working_request = ireq; new_state = SCI_STP_DEV_CMD; } sci_change_state(sm, new_state); @@ -536,11 +536,11 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic struct sas_task *task = isci_request_access_task(ireq); if (task->ata_task.use_ncq) { - status = scic_sds_port_start_io(iport, sci_dev, ireq); + status = scic_sds_port_start_io(iport, idev, ireq); if (status != SCI_SUCCESS) return status; - status = scic_sds_remote_node_context_start_io(&sci_dev->rnc, ireq); + status = scic_sds_remote_node_context_start_io(&idev->rnc, ireq); if (status != SCI_SUCCESS) break; @@ -552,11 +552,11 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic case SCI_STP_DEV_AWAIT_RESET: return SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED; case SCI_SMP_DEV_IDLE: - status = scic_sds_port_start_io(iport, sci_dev, ireq); + status = scic_sds_port_start_io(iport, idev, ireq); if (status != SCI_SUCCESS) return status; - status = scic_sds_remote_node_context_start_io(&sci_dev->rnc, ireq); + status = scic_sds_remote_node_context_start_io(&idev->rnc, ireq); if (status != SCI_SUCCESS) break; @@ -564,8 +564,8 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic if (status != SCI_SUCCESS) break; - sci_dev->working_request = ireq; - sci_change_state(&sci_dev->sm, SCI_SMP_DEV_CMD); + idev->working_request = ireq; + sci_change_state(&idev->sm, SCI_SMP_DEV_CMD); break; case SCI_STP_DEV_CMD: case SCI_SMP_DEV_CMD: @@ -575,12 +575,12 @@ enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic return SCI_FAILURE_INVALID_STATE; } - scic_sds_remote_device_start_request(sci_dev, ireq, status); + scic_sds_remote_device_start_request(idev, ireq, status); return status; } static enum sci_status common_complete_io(struct isci_port *iport, - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, struct isci_request *ireq) { enum sci_status status; @@ -589,21 +589,21 @@ static enum sci_status common_complete_io(struct isci_port *iport, if (status != SCI_SUCCESS) return status; - status = scic_sds_port_complete_io(iport, sci_dev, ireq); + status = scic_sds_port_complete_io(iport, idev, ireq); if (status != SCI_SUCCESS) return status; - scic_sds_remote_device_decrement_request_count(sci_dev); + scic_sds_remote_device_decrement_request_count(idev); return status; } enum sci_status scic_sds_remote_device_complete_io(struct scic_sds_controller *scic, - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, struct isci_request *ireq) { - struct sci_base_state_machine *sm = &sci_dev->sm; + struct sci_base_state_machine *sm = &idev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; - struct isci_port *iport = sci_dev->owning_port; + struct isci_port *iport = idev->owning_port; enum sci_status status; switch (state) { @@ -615,18 +615,18 @@ enum sci_status scic_sds_remote_device_complete_io(struct scic_sds_controller *s case SCI_DEV_FAILED: case SCI_DEV_FINAL: default: - dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n", + dev_warn(scirdev_to_dev(idev), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; case SCI_DEV_READY: case SCI_STP_DEV_AWAIT_RESET: case SCI_DEV_RESETTING: - status = common_complete_io(iport, sci_dev, ireq); + status = common_complete_io(iport, idev, ireq); break; case SCI_STP_DEV_CMD: case SCI_STP_DEV_NCQ: case SCI_STP_DEV_NCQ_ERROR: - status = common_complete_io(iport, sci_dev, ireq); + status = common_complete_io(iport, idev, ireq); if (status != SCI_SUCCESS) break; @@ -637,54 +637,54 @@ enum sci_status scic_sds_remote_device_complete_io(struct scic_sds_controller *s * status of "DEVICE_RESET_REQUIRED", instead of "INVALID STATE". */ sci_change_state(sm, SCI_STP_DEV_AWAIT_RESET); - } else if (scic_sds_remote_device_get_request_count(sci_dev) == 0) + } else if (scic_sds_remote_device_get_request_count(idev) == 0) sci_change_state(sm, SCI_STP_DEV_IDLE); break; case SCI_SMP_DEV_CMD: - status = common_complete_io(iport, sci_dev, ireq); + status = common_complete_io(iport, idev, ireq); if (status != SCI_SUCCESS) break; sci_change_state(sm, SCI_SMP_DEV_IDLE); break; case SCI_DEV_STOPPING: - status = common_complete_io(iport, sci_dev, ireq); + status = common_complete_io(iport, idev, ireq); if (status != SCI_SUCCESS) break; - if (scic_sds_remote_device_get_request_count(sci_dev) == 0) - scic_sds_remote_node_context_destruct(&sci_dev->rnc, + if (scic_sds_remote_device_get_request_count(idev) == 0) + scic_sds_remote_node_context_destruct(&idev->rnc, rnc_destruct_done, - sci_dev); + idev); break; } if (status != SCI_SUCCESS) - dev_err(scirdev_to_dev(sci_dev), + dev_err(scirdev_to_dev(idev), "%s: Port:0x%p Device:0x%p Request:0x%p Status:0x%x " "could not complete\n", __func__, iport, - sci_dev, ireq, status); + idev, ireq, status); else - isci_put_device(sci_dev_to_idev(sci_dev)); + isci_put_device(idev); return status; } static void scic_sds_remote_device_continue_request(void *dev) { - struct scic_sds_remote_device *sci_dev = dev; + struct isci_remote_device *idev = dev; /* we need to check if this request is still valid to continue. */ - if (sci_dev->working_request) - scic_controller_continue_io(sci_dev->working_request); + if (idev->working_request) + scic_controller_continue_io(idev->working_request); } enum sci_status scic_sds_remote_device_start_task(struct scic_sds_controller *scic, - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, struct isci_request *ireq) { - struct sci_base_state_machine *sm = &sci_dev->sm; + struct sci_base_state_machine *sm = &idev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; - struct isci_port *iport = sci_dev->owning_port; + struct isci_port *iport = idev->owning_port; enum sci_status status; switch (state) { @@ -698,7 +698,7 @@ enum sci_status scic_sds_remote_device_start_task(struct scic_sds_controller *sc case SCI_DEV_RESETTING: case SCI_DEV_FINAL: default: - dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n", + dev_warn(scirdev_to_dev(idev), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; case SCI_STP_DEV_IDLE: @@ -706,11 +706,11 @@ enum sci_status scic_sds_remote_device_start_task(struct scic_sds_controller *sc case SCI_STP_DEV_NCQ: case SCI_STP_DEV_NCQ_ERROR: case SCI_STP_DEV_AWAIT_RESET: - status = scic_sds_port_start_io(iport, sci_dev, ireq); + status = scic_sds_port_start_io(iport, idev, ireq); if (status != SCI_SUCCESS) return status; - status = scic_sds_remote_node_context_start_task(&sci_dev->rnc, ireq); + status = scic_sds_remote_node_context_start_task(&idev->rnc, ireq); if (status != SCI_SUCCESS) goto out; @@ -722,7 +722,7 @@ enum sci_status scic_sds_remote_device_start_task(struct scic_sds_controller *sc * replace the request that probably resulted in the task * management request. */ - sci_dev->working_request = ireq; + idev->working_request = ireq; sci_change_state(sm, SCI_STP_DEV_CMD); /* The remote node context must cleanup the TCi to NCQ mapping @@ -732,32 +732,32 @@ enum sci_status scic_sds_remote_device_start_task(struct scic_sds_controller *sc * the correct action when the remote node context is suspended * and later resumed. */ - scic_sds_remote_node_context_suspend(&sci_dev->rnc, + scic_sds_remote_node_context_suspend(&idev->rnc, SCI_SOFTWARE_SUSPENSION, NULL, NULL); - scic_sds_remote_node_context_resume(&sci_dev->rnc, + scic_sds_remote_node_context_resume(&idev->rnc, scic_sds_remote_device_continue_request, - sci_dev); + idev); out: - scic_sds_remote_device_start_request(sci_dev, ireq, status); + scic_sds_remote_device_start_request(idev, ireq, status); /* We need to let the controller start request handler know that * it can't post TC yet. We will provide a callback function to * post TC when RNC gets resumed. */ return SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS; case SCI_DEV_READY: - status = scic_sds_port_start_io(iport, sci_dev, ireq); + status = scic_sds_port_start_io(iport, idev, ireq); if (status != SCI_SUCCESS) return status; - status = scic_sds_remote_node_context_start_task(&sci_dev->rnc, ireq); + status = scic_sds_remote_node_context_start_task(&idev->rnc, ireq); if (status != SCI_SUCCESS) break; status = scic_sds_request_start(ireq); break; } - scic_sds_remote_device_start_request(sci_dev, ireq, status); + scic_sds_remote_device_start_request(idev, ireq, status); return status; } @@ -771,15 +771,15 @@ enum sci_status scic_sds_remote_device_start_task(struct scic_sds_controller *sc * request and then requests the controller to post the request. none */ void scic_sds_remote_device_post_request( - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, u32 request) { u32 context; - context = scic_sds_remote_device_build_command_context(sci_dev, request); + context = scic_sds_remote_device_build_command_context(idev, request); scic_sds_controller_post_request( - scic_sds_remote_device_get_controller(sci_dev), + scic_sds_remote_device_get_controller(idev), context ); } @@ -790,34 +790,33 @@ void scic_sds_remote_device_post_request( */ static void remote_device_resume_done(void *_dev) { - struct scic_sds_remote_device *sci_dev = _dev; + struct isci_remote_device *idev = _dev; - if (is_remote_device_ready(sci_dev)) + if (is_remote_device_ready(idev)) return; /* go 'ready' if we are not already in a ready state */ - sci_change_state(&sci_dev->sm, SCI_DEV_READY); + sci_change_state(&idev->sm, SCI_DEV_READY); } static void scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handler(void *_dev) { - struct scic_sds_remote_device *sci_dev = _dev; - struct isci_remote_device *idev = sci_dev_to_idev(sci_dev); - struct scic_sds_controller *scic = sci_dev->owning_port->owning_controller; + struct isci_remote_device *idev = _dev; + struct scic_sds_controller *scic = idev->owning_port->owning_controller; /* For NCQ operation we do not issue a isci_remote_device_not_ready(). * As a result, avoid sending the ready notification. */ - if (sci_dev->sm.previous_state_id != SCI_STP_DEV_NCQ) + if (idev->sm.previous_state_id != SCI_STP_DEV_NCQ) isci_remote_device_ready(scic_to_ihost(scic), idev); } static void scic_sds_remote_device_initial_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); + struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); /* Initial state is a transitional state to the stopped state */ - sci_change_state(&sci_dev->sm, SCI_DEV_STOPPED); + sci_change_state(&idev->sm, SCI_DEV_STOPPED); } /** @@ -833,22 +832,22 @@ static void scic_sds_remote_device_initial_state_enter(struct sci_base_state_mac * device isn't valid (e.g. it's already been destoryed, the handle isn't * valid, etc.). */ -static enum sci_status scic_remote_device_destruct(struct scic_sds_remote_device *sci_dev) +static enum sci_status scic_remote_device_destruct(struct isci_remote_device *idev) { - struct sci_base_state_machine *sm = &sci_dev->sm; + struct sci_base_state_machine *sm = &idev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; struct scic_sds_controller *scic; if (state != SCI_DEV_STOPPED) { - dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n", + dev_warn(scirdev_to_dev(idev), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } - scic = sci_dev->owning_port->owning_controller; - scic_sds_controller_free_remote_node_context(scic, sci_dev, - sci_dev->rnc.remote_node_index); - sci_dev->rnc.remote_node_index = SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX; + scic = idev->owning_port->owning_controller; + scic_sds_controller_free_remote_node_context(scic, idev, + idev->rnc.remote_node_index); + idev->rnc.remote_node_index = SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX; sci_change_state(sm, SCI_DEV_FINAL); return SCI_SUCCESS; @@ -871,34 +870,32 @@ static void isci_remote_device_deconstruct(struct isci_host *ihost, struct isci_ * io requests in process */ BUG_ON(!list_empty(&idev->reqs_in_process)); - scic_remote_device_destruct(&idev->sci); + scic_remote_device_destruct(idev); list_del_init(&idev->node); isci_put_device(idev); } static void scic_sds_remote_device_stopped_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); - struct scic_sds_controller *scic = sci_dev->owning_port->owning_controller; - struct isci_remote_device *idev = sci_dev_to_idev(sci_dev); + struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); + struct scic_sds_controller *scic = idev->owning_port->owning_controller; u32 prev_state; /* If we are entering from the stopping state let the SCI User know that * the stop operation has completed. */ - prev_state = sci_dev->sm.previous_state_id; + prev_state = idev->sm.previous_state_id; if (prev_state == SCI_DEV_STOPPING) isci_remote_device_deconstruct(scic_to_ihost(scic), idev); - scic_sds_controller_remote_device_stopped(scic, sci_dev); + scic_sds_controller_remote_device_stopped(scic, idev); } static void scic_sds_remote_device_starting_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); - struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); + struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); + struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(idev); struct isci_host *ihost = scic_to_ihost(scic); - struct isci_remote_device *idev = sci_dev_to_idev(sci_dev); isci_remote_device_not_ready(ihost, idev, SCIC_REMOTE_DEVICE_NOT_READY_START_REQUESTED); @@ -906,27 +903,25 @@ static void scic_sds_remote_device_starting_state_enter(struct sci_base_state_ma static void scic_sds_remote_device_ready_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); - struct scic_sds_controller *scic = sci_dev->owning_port->owning_controller; - struct isci_remote_device *idev = sci_dev_to_idev(sci_dev); + struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); + struct scic_sds_controller *scic = idev->owning_port->owning_controller; struct domain_device *dev = idev->domain_dev; if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_SATA)) { - sci_change_state(&sci_dev->sm, SCI_STP_DEV_IDLE); + sci_change_state(&idev->sm, SCI_STP_DEV_IDLE); } else if (dev_is_expander(dev)) { - sci_change_state(&sci_dev->sm, SCI_SMP_DEV_IDLE); + sci_change_state(&idev->sm, SCI_SMP_DEV_IDLE); } else isci_remote_device_ready(scic_to_ihost(scic), idev); } static void scic_sds_remote_device_ready_state_exit(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); - struct domain_device *dev = sci_dev_to_domain(sci_dev); + struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); + struct domain_device *dev = idev->domain_dev; if (dev->dev_type == SAS_END_DEV) { - struct scic_sds_controller *scic = sci_dev->owning_port->owning_controller; - struct isci_remote_device *idev = sci_dev_to_idev(sci_dev); + struct scic_sds_controller *scic = idev->owning_port->owning_controller; isci_remote_device_not_ready(scic_to_ihost(scic), idev, SCIC_REMOTE_DEVICE_NOT_READY_STOP_REQUESTED); @@ -935,82 +930,81 @@ static void scic_sds_remote_device_ready_state_exit(struct sci_base_state_machin static void scic_sds_remote_device_resetting_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); + struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); scic_sds_remote_node_context_suspend( - &sci_dev->rnc, SCI_SOFTWARE_SUSPENSION, NULL, NULL); + &idev->rnc, SCI_SOFTWARE_SUSPENSION, NULL, NULL); } static void scic_sds_remote_device_resetting_state_exit(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); + struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - scic_sds_remote_node_context_resume(&sci_dev->rnc, NULL, NULL); + scic_sds_remote_node_context_resume(&idev->rnc, NULL, NULL); } static void scic_sds_stp_remote_device_ready_idle_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); + struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - sci_dev->working_request = NULL; - if (scic_sds_remote_node_context_is_ready(&sci_dev->rnc)) { + idev->working_request = NULL; + if (scic_sds_remote_node_context_is_ready(&idev->rnc)) { /* * Since the RNC is ready, it's alright to finish completion * processing (e.g. signal the remote device is ready). */ - scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handler(sci_dev); + scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handler(idev); } else { - scic_sds_remote_node_context_resume(&sci_dev->rnc, + scic_sds_remote_node_context_resume(&idev->rnc, scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handler, - sci_dev); + idev); } } static void scic_sds_stp_remote_device_ready_cmd_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); - struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); + struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); + struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(idev); - BUG_ON(sci_dev->working_request == NULL); + BUG_ON(idev->working_request == NULL); - isci_remote_device_not_ready(scic_to_ihost(scic), sci_dev_to_idev(sci_dev), + isci_remote_device_not_ready(scic_to_ihost(scic), idev, SCIC_REMOTE_DEVICE_NOT_READY_SATA_REQUEST_STARTED); } static void scic_sds_stp_remote_device_ready_ncq_error_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); - struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); - struct isci_remote_device *idev = sci_dev_to_idev(sci_dev); + struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); + struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(idev); - if (sci_dev->not_ready_reason == SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED) + if (idev->not_ready_reason == SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED) isci_remote_device_not_ready(scic_to_ihost(scic), idev, - sci_dev->not_ready_reason); + idev->not_ready_reason); } static void scic_sds_smp_remote_device_ready_idle_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); - struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); + struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); + struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(idev); - isci_remote_device_ready(scic_to_ihost(scic), sci_dev_to_idev(sci_dev)); + isci_remote_device_ready(scic_to_ihost(scic), idev); } static void scic_sds_smp_remote_device_ready_cmd_substate_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); - struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(sci_dev); + struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); + struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(idev); - BUG_ON(sci_dev->working_request == NULL); + BUG_ON(idev->working_request == NULL); - isci_remote_device_not_ready(scic_to_ihost(scic), sci_dev_to_idev(sci_dev), + isci_remote_device_not_ready(scic_to_ihost(scic), idev, SCIC_REMOTE_DEVICE_NOT_READY_SMP_REQUEST_STARTED); } static void scic_sds_smp_remote_device_ready_cmd_substate_exit(struct sci_base_state_machine *sm) { - struct scic_sds_remote_device *sci_dev = container_of(sm, typeof(*sci_dev), sm); + struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - sci_dev->working_request = NULL; + idev->working_request = NULL; } static const struct sci_base_state scic_sds_remote_device_state_table[] = { @@ -1065,14 +1059,14 @@ static const struct sci_base_state scic_sds_remote_device_state_table[] = { * frees the remote_node_context(s) for the device. */ static void scic_remote_device_construct(struct isci_port *iport, - struct scic_sds_remote_device *sci_dev) + struct isci_remote_device *idev) { - sci_dev->owning_port = iport; - sci_dev->started_request_count = 0; + idev->owning_port = iport; + idev->started_request_count = 0; - sci_init_sm(&sci_dev->sm, scic_sds_remote_device_state_table, SCI_DEV_INITIAL); + sci_init_sm(&idev->sm, scic_sds_remote_device_state_table, SCI_DEV_INITIAL); - scic_sds_remote_node_context_construct(&sci_dev->rnc, + scic_sds_remote_node_context_construct(&idev->rnc, SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX); } @@ -1091,21 +1085,21 @@ static void scic_remote_device_construct(struct isci_port *iport, * SCI_FAILURE_INSUFFICIENT_RESOURCES - remote node contexts exhausted. */ static enum sci_status scic_remote_device_da_construct(struct isci_port *iport, - struct scic_sds_remote_device *sci_dev) + struct isci_remote_device *idev) { enum sci_status status; - struct domain_device *dev = sci_dev_to_domain(sci_dev); + struct domain_device *dev = idev->domain_dev; - scic_remote_device_construct(iport, sci_dev); + scic_remote_device_construct(iport, idev); /* * This information is request to determine how many remote node context * entries will be needed to store the remote node. */ - sci_dev->is_direct_attached = true; + idev->is_direct_attached = true; status = scic_sds_controller_allocate_remote_node_context(iport->owning_controller, - sci_dev, - &sci_dev->rnc.remote_node_index); + idev, + &idev->rnc.remote_node_index); if (status != SCI_SUCCESS) return status; @@ -1116,10 +1110,10 @@ static enum sci_status scic_remote_device_da_construct(struct isci_port *iport, else return SCI_FAILURE_UNSUPPORTED_PROTOCOL; - sci_dev->connection_rate = scic_sds_port_get_max_allowed_speed(iport); + idev->connection_rate = scic_sds_port_get_max_allowed_speed(iport); /* / @todo Should I assign the port width by reading all of the phys on the port? */ - sci_dev->device_port_width = 1; + idev->device_port_width = 1; return SCI_SUCCESS; } @@ -1137,16 +1131,16 @@ static enum sci_status scic_remote_device_da_construct(struct isci_port *iport, * SCI_FAILURE_INSUFFICIENT_RESOURCES - remote node contexts exhausted. */ static enum sci_status scic_remote_device_ea_construct(struct isci_port *iport, - struct scic_sds_remote_device *sci_dev) + struct isci_remote_device *idev) { - struct domain_device *dev = sci_dev_to_domain(sci_dev); + struct domain_device *dev = idev->domain_dev; enum sci_status status; - scic_remote_device_construct(iport, sci_dev); + scic_remote_device_construct(iport, idev); status = scic_sds_controller_allocate_remote_node_context(iport->owning_controller, - sci_dev, - &sci_dev->rnc.remote_node_index); + idev, + &idev->rnc.remote_node_index); if (status != SCI_SUCCESS) return status; @@ -1163,11 +1157,11 @@ static enum sci_status scic_remote_device_ea_construct(struct isci_port *iport, * connection the logical link rate is that same as the * physical. Furthermore, the SAS-2 and SAS-1.1 fields overlay * one another, so this code works for both situations. */ - sci_dev->connection_rate = min_t(u16, scic_sds_port_get_max_allowed_speed(iport), + idev->connection_rate = min_t(u16, scic_sds_port_get_max_allowed_speed(iport), dev->linkrate); /* / @todo Should I assign the port width by reading all of the phys on the port? */ - sci_dev->device_port_width = 1; + idev->device_port_width = 1; return SCI_SUCCESS; } @@ -1185,22 +1179,22 @@ static enum sci_status scic_remote_device_ea_construct(struct isci_port *iport, * SCI_FAILURE_INVALID_PHY This value is returned if the user attempts to start * the device when there have been no phys added to it. */ -static enum sci_status scic_remote_device_start(struct scic_sds_remote_device *sci_dev, +static enum sci_status scic_remote_device_start(struct isci_remote_device *idev, u32 timeout) { - struct sci_base_state_machine *sm = &sci_dev->sm; + struct sci_base_state_machine *sm = &idev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; enum sci_status status; if (state != SCI_DEV_STOPPED) { - dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n", + dev_warn(scirdev_to_dev(idev), "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; } - status = scic_sds_remote_node_context_resume(&sci_dev->rnc, + status = scic_sds_remote_node_context_resume(&idev->rnc, remote_device_resume_done, - sci_dev); + idev); if (status != SCI_SUCCESS) return status; @@ -1217,9 +1211,9 @@ static enum sci_status isci_remote_device_construct(struct isci_port *iport, enum sci_status status; if (dev->parent && dev_is_expander(dev->parent)) - status = scic_remote_device_ea_construct(iport, &idev->sci); + status = scic_remote_device_ea_construct(iport, idev); else - status = scic_remote_device_da_construct(iport, &idev->sci); + status = scic_remote_device_da_construct(iport, idev); if (status != SCI_SUCCESS) { dev_dbg(&ihost->pdev->dev, "%s: construct failed: %d\n", @@ -1229,7 +1223,7 @@ static enum sci_status isci_remote_device_construct(struct isci_port *iport, } /* start the device. */ - status = scic_remote_device_start(&idev->sci, ISCI_REMOTE_DEVICE_START_TIMEOUT); + status = scic_remote_device_start(idev, ISCI_REMOTE_DEVICE_START_TIMEOUT); if (status != SCI_SUCCESS) dev_warn(&ihost->pdev->dev, "remote device start failed: %d\n", @@ -1330,7 +1324,7 @@ enum sci_status isci_remote_device_stop(struct isci_host *ihost, struct isci_rem set_bit(IDEV_STOP_PENDING, &idev->flags); spin_lock_irqsave(&ihost->scic_lock, flags); - status = scic_remote_device_stop(&idev->sci, 50); + status = scic_remote_device_stop(idev, 50); spin_unlock_irqrestore(&ihost->scic_lock, flags); /* Wait for the stop complete callback. */ diff --git a/drivers/scsi/isci/remote_device.h b/drivers/scsi/isci/remote_device.h index 578d75b8cd1..45798582fc1 100644 --- a/drivers/scsi/isci/remote_device.h +++ b/drivers/scsi/isci/remote_device.h @@ -70,65 +70,14 @@ enum scic_remote_device_not_ready_reason_code { SCIC_REMOTE_DEVICE_NOT_READY_REASON_CODE_MAX }; -struct scic_sds_remote_device { - /** - * This field contains the information for the base remote device state - * machine. - */ - struct sci_base_state_machine sm; - - /** - * This field is the programmed device port width. This value is - * written to the RCN data structure to tell the SCU how many open - * connections this device can have. - */ - u32 device_port_width; - - /** - * This field is the programmed connection rate for this remote device. It is - * used to program the TC with the maximum allowed connection rate. - */ - enum sas_linkrate connection_rate; - - /** - * This filed is assinged the value of true if the device is directly - * attached to the port. - */ - bool is_direct_attached; - - /** - * This filed contains a pointer back to the port to which this device - * is assigned. - */ - struct isci_port *owning_port; - - /** - * This field contains the SCU silicon remote node context specific - * information. - */ - struct scic_sds_remote_node_context rnc; - - /** - * This field contains the stated request count for the remote device. The - * device can not reach the SCI_DEV_STOPPED until all - * requests are complete and the rnc_posted value is false. - */ - u32 started_request_count; - - /** - * This field contains a pointer to the working request object. It is only - * used only for SATA requests since the unsolicited frames we get from the - * hardware have no Tag value to look up the io request object. - */ - struct isci_request *working_request; - - /** - * This field contains the reason for the remote device going not_ready. It is - * assigned in the state handlers and used in the state transition. - */ - u32 not_ready_reason; -}; - +/** + * isci_remote_device - isci representation of a sas expander / end point + * @device_port_width: hw setting for number of simultaneous connections + * @connection_rate: per-taskcontext connection rate for this device + * @working_request: SATA requests have no tag we for unaccelerated + * protocols we need a method to associate unsolicited + * frames with a pending request + */ struct isci_remote_device { #define IDEV_START_PENDING 0 #define IDEV_STOP_PENDING 1 @@ -143,7 +92,16 @@ struct isci_remote_device { struct domain_device *domain_dev; struct list_head node; struct list_head reqs_in_process; - struct scic_sds_remote_device sci; + struct sci_base_state_machine sm; + u32 device_port_width; + enum sas_linkrate connection_rate; + bool is_direct_attached; + struct isci_port *owning_port; + struct scic_sds_remote_node_context rnc; + /* XXX unify with device reference counting and delete */ + u32 started_request_count; + struct isci_request *working_request; + u32 not_ready_reason; }; #define ISCI_REMOTE_DEVICE_START_TIMEOUT 5000 @@ -191,7 +149,7 @@ void isci_device_clear_reset_pending(struct isci_host *ihost, * successfully stopped. */ enum sci_status scic_remote_device_stop( - struct scic_sds_remote_device *remote_device, + struct isci_remote_device *idev, u32 timeout); /** @@ -207,7 +165,7 @@ enum sci_status scic_remote_device_stop( * started. */ enum sci_status scic_remote_device_reset( - struct scic_sds_remote_device *remote_device); + struct isci_remote_device *idev); /** * scic_remote_device_reset_complete() - This method informs the device object @@ -220,7 +178,7 @@ enum sci_status scic_remote_device_reset( * is resuming operation. */ enum sci_status scic_remote_device_reset_complete( - struct scic_sds_remote_device *remote_device); + struct isci_remote_device *idev); #define scic_remote_device_is_atapi(device_handle) false @@ -335,27 +293,15 @@ enum scic_sds_remote_device_states { SCI_DEV_FINAL, }; -static inline struct scic_sds_remote_device *rnc_to_dev(struct scic_sds_remote_node_context *rnc) +static inline struct isci_remote_device *rnc_to_dev(struct scic_sds_remote_node_context *rnc) { - struct scic_sds_remote_device *sci_dev; + struct isci_remote_device *idev; - sci_dev = container_of(rnc, typeof(*sci_dev), rnc); - - return sci_dev; -} - -static inline struct isci_remote_device *sci_dev_to_idev(struct scic_sds_remote_device *sci_dev) -{ - struct isci_remote_device *idev = container_of(sci_dev, typeof(*idev), sci); + idev = container_of(rnc, typeof(*idev), rnc); return idev; } -static inline struct domain_device *sci_dev_to_domain(struct scic_sds_remote_device *sci_dev) -{ - return sci_dev_to_idev(sci_dev)->domain_dev; -} - static inline bool dev_is_expander(struct domain_device *dev) { return dev->dev_type == EDGE_DEV || dev->dev_type == FANOUT_DEV; @@ -366,8 +312,8 @@ static inline bool dev_is_expander(struct domain_device *dev) * * This macro incrments the request count for this device */ -#define scic_sds_remote_device_increment_request_count(sci_dev) \ - ((sci_dev)->started_request_count++) +#define scic_sds_remote_device_increment_request_count(idev) \ + ((idev)->started_request_count++) /** * scic_sds_remote_device_decrement_request_count() - @@ -375,44 +321,44 @@ static inline bool dev_is_expander(struct domain_device *dev) * This macro decrements the request count for this device. This count will * never decrment past 0. */ -#define scic_sds_remote_device_decrement_request_count(sci_dev) \ - ((sci_dev)->started_request_count > 0 ? \ - (sci_dev)->started_request_count-- : 0) +#define scic_sds_remote_device_decrement_request_count(idev) \ + ((idev)->started_request_count > 0 ? \ + (idev)->started_request_count-- : 0) /** * scic_sds_remote_device_get_request_count() - * * This is a helper macro to return the current device request count. */ -#define scic_sds_remote_device_get_request_count(sci_dev) \ - ((sci_dev)->started_request_count) +#define scic_sds_remote_device_get_request_count(idev) \ + ((idev)->started_request_count) /** * scic_sds_remote_device_get_controller() - * * This macro returns the controller object that contains this device object */ -#define scic_sds_remote_device_get_controller(sci_dev) \ - scic_sds_port_get_controller(scic_sds_remote_device_get_port(sci_dev)) +#define scic_sds_remote_device_get_controller(idev) \ + scic_sds_port_get_controller(scic_sds_remote_device_get_port(idev)) /** * scic_sds_remote_device_get_port() - * * This macro returns the owning port of this device */ -#define scic_sds_remote_device_get_port(sci_dev) \ - ((sci_dev)->owning_port) +#define scic_sds_remote_device_get_port(idev) \ + ((idev)->owning_port) /** * scic_sds_remote_device_get_controller_peg() - * * This macro returns the controllers protocol engine group */ -#define scic_sds_remote_device_get_controller_peg(sci_dev) \ +#define scic_sds_remote_device_get_controller_peg(idev) \ (\ scic_sds_controller_get_protocol_engine_group(\ scic_sds_port_get_controller(\ - scic_sds_remote_device_get_port(sci_dev) \ + scic_sds_remote_device_get_port(idev) \ ) \ ) \ ) @@ -422,8 +368,8 @@ static inline bool dev_is_expander(struct domain_device *dev) * * This macro returns the remote node index for this device object */ -#define scic_sds_remote_device_get_index(sci_dev) \ - ((sci_dev)->rnc.remote_node_index) +#define scic_sds_remote_device_get_index(idev) \ + ((idev)->rnc.remote_node_index) /** * scic_sds_remote_device_build_command_context() - @@ -448,36 +394,36 @@ static inline bool dev_is_expander(struct domain_device *dev) ((device)->working_request = (request)) enum sci_status scic_sds_remote_device_frame_handler( - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, u32 frame_index); enum sci_status scic_sds_remote_device_event_handler( - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, u32 event_code); enum sci_status scic_sds_remote_device_start_io( struct scic_sds_controller *controller, - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, struct isci_request *ireq); enum sci_status scic_sds_remote_device_start_task( struct scic_sds_controller *controller, - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, struct isci_request *ireq); enum sci_status scic_sds_remote_device_complete_io( struct scic_sds_controller *controller, - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, struct isci_request *ireq); enum sci_status scic_sds_remote_device_suspend( - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, u32 suspend_type); void scic_sds_remote_device_post_request( - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, u32 request); -#define scic_sds_remote_device_is_atapi(sci_dev) false +#define scic_sds_remote_device_is_atapi(idev) false #endif /* !defined(_ISCI_REMOTE_DEVICE_H_) */ diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index 1b51fe55314..e485744e126 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -103,22 +103,22 @@ bool scic_sds_remote_node_context_is_ready( static void scic_sds_remote_node_context_construct_buffer( struct scic_sds_remote_node_context *sci_rnc) { - struct scic_sds_remote_device *sci_dev = rnc_to_dev(sci_rnc); - struct domain_device *dev = sci_dev_to_domain(sci_dev); + struct isci_remote_device *idev = rnc_to_dev(sci_rnc); + struct domain_device *dev = idev->domain_dev; int rni = sci_rnc->remote_node_index; union scu_remote_node_context *rnc; struct scic_sds_controller *scic; __le64 sas_addr; - scic = scic_sds_remote_device_get_controller(sci_dev); + scic = scic_sds_remote_device_get_controller(idev); rnc = scic_sds_controller_get_remote_node_context_buffer(scic, rni); memset(rnc, 0, sizeof(union scu_remote_node_context) - * scic_sds_remote_device_node_count(sci_dev)); + * scic_sds_remote_device_node_count(idev)); rnc->ssp.remote_node_index = rni; - rnc->ssp.remote_node_port_width = sci_dev->device_port_width; - rnc->ssp.logical_port_index = sci_dev->owning_port->physical_port_index; + rnc->ssp.remote_node_port_width = idev->device_port_width; + rnc->ssp.logical_port_index = idev->owning_port->physical_port_index; /* sas address is __be64, context ram format is __le64 */ sas_addr = cpu_to_le64(SAS_ADDR(dev->sas_addr)); @@ -148,7 +148,7 @@ static void scic_sds_remote_node_context_construct_buffer( rnc->ssp.initial_arbitration_wait_time = 0; /* Open Address Frame Parameters */ - rnc->ssp.oaf_connection_rate = sci_dev->connection_rate; + rnc->ssp.oaf_connection_rate = idev->connection_rate; rnc->ssp.oaf_features = 0; rnc->ssp.oaf_source_zone_group = 0; rnc->ssp.oaf_more_compatibility_features = 0; @@ -220,26 +220,26 @@ static void scic_sds_remote_node_context_continue_state_transitions(struct scic_ static void scic_sds_remote_node_context_validate_context_buffer( struct scic_sds_remote_node_context *sci_rnc) { - struct scic_sds_remote_device *sci_dev = rnc_to_dev(sci_rnc); - struct domain_device *dev = sci_dev_to_domain(sci_dev); + struct isci_remote_device *idev = rnc_to_dev(sci_rnc); + struct domain_device *dev = idev->domain_dev; union scu_remote_node_context *rnc_buffer; rnc_buffer = scic_sds_controller_get_remote_node_context_buffer( - scic_sds_remote_device_get_controller(sci_dev), + scic_sds_remote_device_get_controller(idev), sci_rnc->remote_node_index ); rnc_buffer->ssp.is_valid = true; - if (!sci_dev->is_direct_attached && + if (!idev->is_direct_attached && (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP))) { - scic_sds_remote_device_post_request(sci_dev, + scic_sds_remote_device_post_request(idev, SCU_CONTEXT_COMMAND_POST_RNC_96); } else { - scic_sds_remote_device_post_request(sci_dev, SCU_CONTEXT_COMMAND_POST_RNC_32); + scic_sds_remote_device_post_request(idev, SCU_CONTEXT_COMMAND_POST_RNC_32); - if (sci_dev->is_direct_attached) { - scic_sds_port_setup_transports(sci_dev->owning_port, + if (idev->is_direct_attached) { + scic_sds_port_setup_transports(idev->owning_port, sci_rnc->remote_node_index); } } @@ -296,11 +296,11 @@ static void scic_sds_remote_node_context_invalidating_state_enter(struct sci_bas static void scic_sds_remote_node_context_resuming_state_enter(struct sci_base_state_machine *sm) { struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); - struct scic_sds_remote_device *sci_dev; + struct isci_remote_device *idev; struct domain_device *dev; - sci_dev = rnc_to_dev(rnc); - dev = sci_dev_to_domain(sci_dev); + idev = rnc_to_dev(rnc); + dev = idev->domain_dev; /* * For direct attached SATA devices we need to clear the TLCR @@ -309,11 +309,11 @@ static void scic_sds_remote_node_context_resuming_state_enter(struct sci_base_st * the STPTLDARNI register with the RNi of the device */ if ((dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) && - sci_dev->is_direct_attached) - scic_sds_port_setup_transports(sci_dev->owning_port, + idev->is_direct_attached) + scic_sds_port_setup_transports(idev->owning_port, rnc->remote_node_index); - scic_sds_remote_device_post_request(sci_dev, SCU_CONTEXT_COMMAND_POST_RNC_RESUME); + scic_sds_remote_device_post_request(idev, SCU_CONTEXT_COMMAND_POST_RNC_RESUME); } static void scic_sds_remote_node_context_ready_state_enter(struct sci_base_state_machine *sm) @@ -564,8 +564,8 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_ sci_rnc->user_cookie = cb_p; return SCI_SUCCESS; case SCI_RNC_TX_SUSPENDED: { - struct scic_sds_remote_device *sci_dev = rnc_to_dev(sci_rnc); - struct domain_device *dev = sci_dev_to_domain(sci_dev); + struct isci_remote_device *idev = rnc_to_dev(sci_rnc); + struct domain_device *dev = idev->domain_dev; scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); @@ -573,7 +573,7 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_ if (dev->dev_type == SAS_END_DEV || dev_is_expander(dev)) sci_change_state(&sci_rnc->sm, SCI_RNC_RESUMING); else if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) { - if (sci_dev->is_direct_attached) { + if (idev->is_direct_attached) { /* @todo Fix this since I am being silly in writing to the STPTLDARNI register. */ sci_change_state(&sci_rnc->sm, SCI_RNC_RESUMING); } else { diff --git a/drivers/scsi/isci/remote_node_context.h b/drivers/scsi/isci/remote_node_context.h index 35e6ae61690..7a24c7a12de 100644 --- a/drivers/scsi/isci/remote_node_context.h +++ b/drivers/scsi/isci/remote_node_context.h @@ -79,7 +79,7 @@ #define SCI_SOFTWARE_SUSPENSION (1) struct isci_request; -struct scic_sds_remote_device; +struct isci_remote_device; struct scic_sds_remote_node_context; typedef void (*scics_sds_remote_node_context_callback)(void *); diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index 2d29abf3ce1..90ead662828 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -209,17 +209,17 @@ static void scu_ssp_reqeust_construct_task_context( struct scu_task_context *task_context) { dma_addr_t dma_addr; - struct scic_sds_remote_device *target_device; + struct isci_remote_device *idev; struct isci_port *iport; - target_device = scic_sds_request_get_device(ireq); + idev = scic_sds_request_get_device(ireq); iport = scic_sds_request_get_port(ireq); /* Fill in the TC with the its required data */ task_context->abort = 0; task_context->priority = 0; task_context->initiator_request = 1; - task_context->connection_rate = target_device->connection_rate; + task_context->connection_rate = idev->connection_rate; task_context->protocol_engine_index = scic_sds_controller_get_protocol_engine_group(controller); task_context->logical_port_index = scic_sds_port_get_index(iport); @@ -227,8 +227,7 @@ static void scu_ssp_reqeust_construct_task_context( task_context->valid = SCU_TASK_CONTEXT_VALID; task_context->context_type = SCU_TASK_CONTEXT_TYPE; - task_context->remote_node_index = - scic_sds_remote_device_get_index(ireq->target_device); + task_context->remote_node_index = scic_sds_remote_device_get_index(idev); task_context->command_code = 0; task_context->link_layer_control = 0; @@ -348,17 +347,17 @@ static void scu_sata_reqeust_construct_task_context( struct scu_task_context *task_context) { dma_addr_t dma_addr; - struct scic_sds_remote_device *target_device; + struct isci_remote_device *idev; struct isci_port *iport; - target_device = scic_sds_request_get_device(ireq); + idev = scic_sds_request_get_device(ireq); iport = scic_sds_request_get_port(ireq); /* Fill in the TC with the its required data */ task_context->abort = 0; task_context->priority = SCU_TASK_PRIORITY_NORMAL; task_context->initiator_request = 1; - task_context->connection_rate = target_device->connection_rate; + task_context->connection_rate = idev->connection_rate; task_context->protocol_engine_index = scic_sds_controller_get_protocol_engine_group(controller); task_context->logical_port_index = @@ -367,8 +366,7 @@ static void scu_sata_reqeust_construct_task_context( task_context->valid = SCU_TASK_CONTEXT_VALID; task_context->context_type = SCU_TASK_CONTEXT_TYPE; - task_context->remote_node_index = - scic_sds_remote_device_get_index(ireq->target_device); + task_context->remote_node_index = scic_sds_remote_device_get_index(idev); task_context->command_code = 0; task_context->link_layer_control = 0; @@ -2850,7 +2848,7 @@ static void isci_request_io_request_complete(struct isci_host *isci_host, static void scic_sds_request_started_state_enter(struct sci_base_state_machine *sm) { struct isci_request *ireq = container_of(sm, typeof(*ireq), sm); - struct domain_device *dev = sci_dev_to_domain(ireq->target_device); + struct domain_device *dev = ireq->target_device->domain_dev; struct sas_task *task; /* XXX as hch said always creating an internal sas_task for tmf @@ -2988,12 +2986,12 @@ static const struct sci_base_state scic_sds_request_state_table[] = { static void scic_sds_general_request_construct(struct scic_sds_controller *scic, - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, struct isci_request *ireq) { sci_init_sm(&ireq->sm, scic_sds_request_state_table, SCI_REQ_INIT); - ireq->target_device = sci_dev; + ireq->target_device = idev; ireq->protocol = SCIC_NO_PROTOCOL; ireq->saved_rx_frame_index = SCU_INVALID_FRAME_INDEX; @@ -3004,16 +3002,16 @@ scic_sds_general_request_construct(struct scic_sds_controller *scic, static enum sci_status scic_io_request_construct(struct scic_sds_controller *scic, - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, struct isci_request *ireq) { - struct domain_device *dev = sci_dev_to_domain(sci_dev); + struct domain_device *dev = idev->domain_dev; enum sci_status status = SCI_SUCCESS; /* Build the common part of the request */ - scic_sds_general_request_construct(scic, sci_dev, ireq); + scic_sds_general_request_construct(scic, idev, ireq); - if (sci_dev->rnc.remote_node_index == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) + if (idev->rnc.remote_node_index == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) return SCI_FAILURE_INVALID_REMOTE_DEVICE; if (dev->dev_type == SAS_END_DEV) @@ -3031,14 +3029,14 @@ scic_io_request_construct(struct scic_sds_controller *scic, } enum sci_status scic_task_request_construct(struct scic_sds_controller *scic, - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, u16 io_tag, struct isci_request *ireq) { - struct domain_device *dev = sci_dev_to_domain(sci_dev); + struct domain_device *dev = idev->domain_dev; enum sci_status status = SCI_SUCCESS; /* Build the common part of the request */ - scic_sds_general_request_construct(scic, sci_dev, ireq); + scic_sds_general_request_construct(scic, idev, ireq); if (dev->dev_type == SAS_END_DEV || dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) { @@ -3102,7 +3100,7 @@ scic_io_request_construct_smp(struct device *dev, struct sas_task *task) { struct scatterlist *sg = &task->smp_task.smp_req; - struct scic_sds_remote_device *sci_dev; + struct isci_remote_device *idev; struct scu_task_context *task_context; struct isci_port *iport; struct smp_req *smp_req; @@ -3147,7 +3145,7 @@ scic_io_request_construct_smp(struct device *dev, task_context = ireq->tc; - sci_dev = scic_sds_request_get_device(ireq); + idev = scic_sds_request_get_device(ireq); iport = scic_sds_request_get_port(ireq); /* @@ -3156,7 +3154,7 @@ scic_io_request_construct_smp(struct device *dev, */ task_context->priority = 0; task_context->initiator_request = 1; - task_context->connection_rate = sci_dev->connection_rate; + task_context->connection_rate = idev->connection_rate; task_context->protocol_engine_index = scic_sds_controller_get_protocol_engine_group(scic); task_context->logical_port_index = scic_sds_port_get_index(iport); @@ -3166,7 +3164,7 @@ scic_io_request_construct_smp(struct device *dev, task_context->context_type = SCU_TASK_CONTEXT_TYPE; /* 04h */ - task_context->remote_node_index = sci_dev->rnc.remote_node_index; + task_context->remote_node_index = idev->rnc.remote_node_index; task_context->command_code = 0; task_context->task_type = SCU_TASK_TYPE_SMP_REQUEST; @@ -3257,17 +3255,16 @@ static enum sci_status isci_smp_request_build(struct isci_request *ireq) */ static enum sci_status isci_io_request_build(struct isci_host *isci_host, struct isci_request *request, - struct isci_remote_device *isci_device) + struct isci_remote_device *idev) { enum sci_status status = SCI_SUCCESS; struct sas_task *task = isci_request_access_task(request); - struct scic_sds_remote_device *sci_device = &isci_device->sci; dev_dbg(&isci_host->pdev->dev, - "%s: isci_device = 0x%p; request = %p, " + "%s: idev = 0x%p; request = %p, " "num_scatter = %d\n", __func__, - isci_device, + idev, request, task->num_scatter); @@ -3290,8 +3287,7 @@ static enum sci_status isci_io_request_build(struct isci_host *isci_host, return SCI_FAILURE_INSUFFICIENT_RESOURCES; } - status = scic_io_request_construct(&isci_host->sci, sci_device, - request); + status = scic_io_request_construct(&isci_host->sci, idev, request); if (status != SCI_SUCCESS) { dev_warn(&isci_host->pdev->dev, @@ -3397,14 +3393,14 @@ int isci_request_execute(struct isci_host *ihost, struct isci_remote_device *ide * ireq->is_task_management_request is false). */ status = scic_controller_start_task(&ihost->sci, - &idev->sci, + idev, ireq); } else { status = SCI_FAILURE; } } else { /* send the request, let the core assign the IO TAG. */ - status = scic_controller_start_io(&ihost->sci, &idev->sci, + status = scic_controller_start_io(&ihost->sci, idev, ireq); } diff --git a/drivers/scsi/isci/request.h b/drivers/scsi/isci/request.h index 68d8a27357e..ca64ea207ac 100644 --- a/drivers/scsi/isci/request.h +++ b/drivers/scsi/isci/request.h @@ -146,7 +146,7 @@ struct isci_request { struct completion *io_request_completion; struct sci_base_state_machine sm; struct scic_sds_controller *owning_controller; - struct scic_sds_remote_device *target_device; + struct isci_remote_device *target_device; u16 io_tag; enum sci_request_protocol protocol; u32 scu_status; /* hardware result */ @@ -501,7 +501,7 @@ void isci_terminate_pending_requests(struct isci_host *ihost, struct isci_remote_device *idev); enum sci_status scic_task_request_construct(struct scic_sds_controller *scic, - struct scic_sds_remote_device *sci_dev, + struct isci_remote_device *idev, u16 io_tag, struct isci_request *ireq); enum sci_status diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index 700708c8267..89b01eef44b 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -257,7 +257,7 @@ static struct isci_request *isci_task_request_build(struct isci_host *ihost, return NULL; /* let the core do it's construct. */ - status = scic_task_request_construct(&ihost->sci, &idev->sci, tag, + status = scic_task_request_construct(&ihost->sci, idev, tag, ireq); if (status != SCI_SUCCESS) { @@ -288,12 +288,11 @@ static struct isci_request *isci_task_request_build(struct isci_host *ihost, } int isci_task_execute_tmf(struct isci_host *ihost, - struct isci_remote_device *isci_device, + struct isci_remote_device *idev, struct isci_tmf *tmf, unsigned long timeout_ms) { DECLARE_COMPLETION_ONSTACK(completion); enum sci_task_status status = SCI_TASK_FAILURE; - struct scic_sds_remote_device *sci_device; struct isci_request *ireq; int ret = TMF_RESP_FUNC_FAILED; unsigned long flags; @@ -310,34 +309,30 @@ int isci_task_execute_tmf(struct isci_host *ihost, /* sanity check, return TMF_RESP_FUNC_FAILED * if the device is not there and ready. */ - if (!isci_device || - (!test_bit(IDEV_IO_READY, &isci_device->flags) && - !test_bit(IDEV_IO_NCQERROR, &isci_device->flags))) { + if (!idev || + (!test_bit(IDEV_IO_READY, &idev->flags) && + !test_bit(IDEV_IO_NCQERROR, &idev->flags))) { dev_dbg(&ihost->pdev->dev, - "%s: isci_device = %p not ready (%#lx)\n", + "%s: idev = %p not ready (%#lx)\n", __func__, - isci_device, isci_device ? isci_device->flags : 0); + idev, idev ? idev->flags : 0); goto err_tci; } else dev_dbg(&ihost->pdev->dev, - "%s: isci_device = %p\n", - __func__, isci_device); - - sci_device = &isci_device->sci; + "%s: idev = %p\n", + __func__, idev); /* Assign the pointer to the TMF's completion kernel wait structure. */ tmf->complete = &completion; - ireq = isci_task_request_build(ihost, isci_device, tag, tmf); + ireq = isci_task_request_build(ihost, idev, tag, tmf); if (!ireq) goto err_tci; spin_lock_irqsave(&ihost->scic_lock, flags); /* start the TMF io. */ - status = scic_controller_start_task(&ihost->sci, - sci_device, - ireq); + status = scic_controller_start_task(&ihost->sci, idev, ireq); if (status != SCI_TASK_SUCCESS) { dev_warn(&ihost->pdev->dev, @@ -355,7 +350,7 @@ int isci_task_execute_tmf(struct isci_host *ihost, isci_request_change_state(ireq, started); /* add the request to the remote device request list. */ - list_add(&ireq->dev_node, &isci_device->reqs_in_process); + list_add(&ireq->dev_node, &idev->reqs_in_process); spin_unlock_irqrestore(&ihost->scic_lock, flags); @@ -370,7 +365,7 @@ int isci_task_execute_tmf(struct isci_host *ihost, tmf->cb_state_func(isci_tmf_timed_out, tmf, tmf->cb_data); scic_controller_terminate_request(&ihost->sci, - &isci_device->sci, + idev, ireq); spin_unlock_irqrestore(&ihost->scic_lock, flags); @@ -520,13 +515,13 @@ static void isci_request_cleanup_completed_loiterer( * from a thread that can wait. Note that the request is terminated and * completed (back to the host, if started there). * @isci_host: This SCU. - * @isci_device: The target. + * @idev: The target. * @isci_request: The I/O request to be terminated. * */ static void isci_terminate_request_core( struct isci_host *isci_host, - struct isci_remote_device *isci_device, + struct isci_remote_device *idev, struct isci_request *isci_request) { enum sci_status status = SCI_SUCCESS; @@ -540,7 +535,7 @@ static void isci_terminate_request_core( dev_dbg(&isci_host->pdev->dev, "%s: device = %p; request = %p\n", - __func__, isci_device, isci_request); + __func__, idev, isci_request); spin_lock_irqsave(&isci_host->scic_lock, flags); @@ -564,7 +559,7 @@ static void isci_terminate_request_core( needs_cleanup_handling = true; status = scic_controller_terminate_request( &isci_host->sci, - &isci_device->sci, + idev, isci_request); } spin_unlock_irqrestore(&isci_host->scic_lock, flags); @@ -683,7 +678,7 @@ static void isci_terminate_request_core( } if (needs_cleanup_handling) isci_request_cleanup_completed_loiterer( - isci_host, isci_device, isci_request, task); + isci_host, idev, isci_request, task); } } @@ -694,7 +689,7 @@ static void isci_terminate_request_core( * called from a thread that can wait. Note that the requests are all * terminated and completed (back to the host, if started there). * @isci_host: This parameter specifies SCU. - * @isci_device: This parameter specifies the target. + * @idev: This parameter specifies the target. * */ void isci_terminate_pending_requests(struct isci_host *ihost, @@ -1521,7 +1516,7 @@ static int isci_reset_device(struct isci_host *ihost, dev_dbg(&ihost->pdev->dev, "%s: idev %p\n", __func__, idev); spin_lock_irqsave(&ihost->scic_lock, flags); - status = scic_remote_device_reset(&idev->sci); + status = scic_remote_device_reset(idev); if (status != SCI_SUCCESS) { spin_unlock_irqrestore(&ihost->scic_lock, flags); @@ -1547,7 +1542,7 @@ static int isci_reset_device(struct isci_host *ihost, /* Since all pending TCs have been cleaned, resume the RNC. */ spin_lock_irqsave(&ihost->scic_lock, flags); - status = scic_remote_device_reset_complete(&idev->sci); + status = scic_remote_device_reset_complete(idev); spin_unlock_irqrestore(&ihost->scic_lock, flags); /* If this is a device on an expander, bring the phy back up. */ -- cgit v1.2.3-70-g09d2 From d9dcb4ba791de2a06b19ac47cd61601cf3d4e208 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 30 Jun 2011 17:38:32 -0700 Subject: isci: unify isci_host and scic_sds_controller Remove the distinction between these two implementations and unify on isci_host (local instances named ihost). Hmmm, we had two 'oem_parameters' instances, one was unused... nice. Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/host.c | 1000 ++++++++++++------------- drivers/scsi/isci/host.h | 210 ++---- drivers/scsi/isci/init.c | 10 +- drivers/scsi/isci/phy.c | 40 +- drivers/scsi/isci/port.c | 89 +-- drivers/scsi/isci/port.h | 4 +- drivers/scsi/isci/port_config.c | 82 +- drivers/scsi/isci/probe_roms.h | 2 +- drivers/scsi/isci/remote_device.c | 76 +- drivers/scsi/isci/remote_device.h | 6 +- drivers/scsi/isci/remote_node_context.c | 14 +- drivers/scsi/isci/request.c | 200 +++-- drivers/scsi/isci/request.h | 4 +- drivers/scsi/isci/task.c | 44 +- drivers/scsi/isci/unsolicited_frame_control.c | 6 +- drivers/scsi/isci/unsolicited_frame_control.h | 4 +- 16 files changed, 806 insertions(+), 985 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index 45d7f71c609..bb298f8f609 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -181,35 +181,35 @@ void sci_change_state(struct sci_base_state_machine *sm, u32 next_state) } static bool scic_sds_controller_completion_queue_has_entries( - struct scic_sds_controller *scic) + struct isci_host *ihost) { - u32 get_value = scic->completion_queue_get; + u32 get_value = ihost->completion_queue_get; u32 get_index = get_value & SMU_COMPLETION_QUEUE_GET_POINTER_MASK; if (NORMALIZE_GET_POINTER_CYCLE_BIT(get_value) == - COMPLETION_QUEUE_CYCLE_BIT(scic->completion_queue[get_index])) + COMPLETION_QUEUE_CYCLE_BIT(ihost->completion_queue[get_index])) return true; return false; } -static bool scic_sds_controller_isr(struct scic_sds_controller *scic) +static bool scic_sds_controller_isr(struct isci_host *ihost) { - if (scic_sds_controller_completion_queue_has_entries(scic)) { + if (scic_sds_controller_completion_queue_has_entries(ihost)) { return true; } else { /* * we have a spurious interrupt it could be that we have already * emptied the completion queue from a previous interrupt */ - writel(SMU_ISR_COMPLETION, &scic->smu_registers->interrupt_status); + writel(SMU_ISR_COMPLETION, &ihost->smu_registers->interrupt_status); /* * There is a race in the hardware that could cause us not to be notified * of an interrupt completion if we do not take this step. We will mask * then unmask the interrupts so if there is another interrupt pending * the clearing of the interrupt source we get the next interrupt message. */ - writel(0xFF000000, &scic->smu_registers->interrupt_mask); - writel(0, &scic->smu_registers->interrupt_mask); + writel(0xFF000000, &ihost->smu_registers->interrupt_mask); + writel(0, &ihost->smu_registers->interrupt_mask); } return false; @@ -219,18 +219,18 @@ irqreturn_t isci_msix_isr(int vec, void *data) { struct isci_host *ihost = data; - if (scic_sds_controller_isr(&ihost->sci)) + if (scic_sds_controller_isr(ihost)) tasklet_schedule(&ihost->completion_tasklet); return IRQ_HANDLED; } -static bool scic_sds_controller_error_isr(struct scic_sds_controller *scic) +static bool scic_sds_controller_error_isr(struct isci_host *ihost) { u32 interrupt_status; interrupt_status = - readl(&scic->smu_registers->interrupt_status); + readl(&ihost->smu_registers->interrupt_status); interrupt_status &= (SMU_ISR_QUEUE_ERROR | SMU_ISR_QUEUE_SUSPEND); if (interrupt_status != 0) { @@ -246,28 +246,27 @@ static bool scic_sds_controller_error_isr(struct scic_sds_controller *scic) * then unmask the error interrupts so if there was another interrupt * pending we will be notified. * Could we write the value of (SMU_ISR_QUEUE_ERROR | SMU_ISR_QUEUE_SUSPEND)? */ - writel(0xff, &scic->smu_registers->interrupt_mask); - writel(0, &scic->smu_registers->interrupt_mask); + writel(0xff, &ihost->smu_registers->interrupt_mask); + writel(0, &ihost->smu_registers->interrupt_mask); return false; } -static void scic_sds_controller_task_completion(struct scic_sds_controller *scic, +static void scic_sds_controller_task_completion(struct isci_host *ihost, u32 completion_entry) { u32 index = SCU_GET_COMPLETION_INDEX(completion_entry); - struct isci_host *ihost = scic_to_ihost(scic); struct isci_request *ireq = ihost->reqs[index]; /* Make sure that we really want to process this IO request */ if (test_bit(IREQ_ACTIVE, &ireq->flags) && ireq->io_tag != SCI_CONTROLLER_INVALID_IO_TAG && - ISCI_TAG_SEQ(ireq->io_tag) == scic->io_request_sequence[index]) + ISCI_TAG_SEQ(ireq->io_tag) == ihost->io_request_sequence[index]) /* Yep this is a valid io request pass it along to the io request handler */ scic_sds_io_request_tc_completion(ireq, completion_entry); } -static void scic_sds_controller_sdma_completion(struct scic_sds_controller *scic, +static void scic_sds_controller_sdma_completion(struct isci_host *ihost, u32 completion_entry) { u32 index; @@ -279,8 +278,8 @@ static void scic_sds_controller_sdma_completion(struct scic_sds_controller *scic switch (scu_get_command_request_type(completion_entry)) { case SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC: case SCU_CONTEXT_COMMAND_REQUEST_TYPE_DUMP_TC: - ireq = scic_to_ihost(scic)->reqs[index]; - dev_warn(scic_to_dev(scic), "%s: %x for io request %p\n", + ireq = ihost->reqs[index]; + dev_warn(&ihost->pdev->dev, "%s: %x for io request %p\n", __func__, completion_entry, ireq); /* @todo For a post TC operation we need to fail the IO * request @@ -289,27 +288,26 @@ static void scic_sds_controller_sdma_completion(struct scic_sds_controller *scic case SCU_CONTEXT_COMMAND_REQUEST_TYPE_DUMP_RNC: case SCU_CONTEXT_COMMAND_REQUEST_TYPE_OTHER_RNC: case SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_RNC: - idev = scic->device_table[index]; - dev_warn(scic_to_dev(scic), "%s: %x for device %p\n", + idev = ihost->device_table[index]; + dev_warn(&ihost->pdev->dev, "%s: %x for device %p\n", __func__, completion_entry, idev); /* @todo For a port RNC operation we need to fail the * device */ break; default: - dev_warn(scic_to_dev(scic), "%s: unknown completion type %x\n", + dev_warn(&ihost->pdev->dev, "%s: unknown completion type %x\n", __func__, completion_entry); break; } } -static void scic_sds_controller_unsolicited_frame(struct scic_sds_controller *scic, +static void scic_sds_controller_unsolicited_frame(struct isci_host *ihost, u32 completion_entry) { u32 index; u32 frame_index; - struct isci_host *ihost = scic_to_ihost(scic); struct scu_unsolicited_frame_header *frame_header; struct isci_phy *iphy; struct isci_remote_device *idev; @@ -318,15 +316,15 @@ static void scic_sds_controller_unsolicited_frame(struct scic_sds_controller *sc frame_index = SCU_GET_FRAME_INDEX(completion_entry); - frame_header = scic->uf_control.buffers.array[frame_index].header; - scic->uf_control.buffers.array[frame_index].state = UNSOLICITED_FRAME_IN_USE; + frame_header = ihost->uf_control.buffers.array[frame_index].header; + ihost->uf_control.buffers.array[frame_index].state = UNSOLICITED_FRAME_IN_USE; if (SCU_GET_FRAME_ERROR(completion_entry)) { /* * / @todo If the IAF frame or SIGNATURE FIS frame has an error will * / this cause a problem? We expect the phy initialization will * / fail if there is an error in the frame. */ - scic_sds_controller_release_frame(scic, frame_index); + scic_sds_controller_release_frame(ihost, frame_index); return; } @@ -347,15 +345,15 @@ static void scic_sds_controller_unsolicited_frame(struct scic_sds_controller *sc iphy = &ihost->phys[index]; result = scic_sds_phy_frame_handler(iphy, frame_index); } else { - if (index < scic->remote_node_entries) - idev = scic->device_table[index]; + if (index < ihost->remote_node_entries) + idev = ihost->device_table[index]; else idev = NULL; if (idev != NULL) result = scic_sds_remote_device_frame_handler(idev, frame_index); else - scic_sds_controller_release_frame(scic, frame_index); + scic_sds_controller_release_frame(ihost, frame_index); } } @@ -366,10 +364,9 @@ static void scic_sds_controller_unsolicited_frame(struct scic_sds_controller *sc } } -static void scic_sds_controller_event_completion(struct scic_sds_controller *scic, +static void scic_sds_controller_event_completion(struct isci_host *ihost, u32 completion_entry) { - struct isci_host *ihost = scic_to_ihost(scic); struct isci_remote_device *idev; struct isci_request *ireq; struct isci_phy *iphy; @@ -380,11 +377,11 @@ static void scic_sds_controller_event_completion(struct scic_sds_controller *sci switch (scu_get_event_type(completion_entry)) { case SCU_EVENT_TYPE_SMU_COMMAND_ERROR: /* / @todo The driver did something wrong and we need to fix the condtion. */ - dev_err(scic_to_dev(scic), + dev_err(&ihost->pdev->dev, "%s: SCIC Controller 0x%p received SMU command error " "0x%x\n", __func__, - scic, + ihost, completion_entry); break; @@ -394,11 +391,11 @@ static void scic_sds_controller_event_completion(struct scic_sds_controller *sci /* * / @todo This is a hardware failure and its likely that we want to * / reset the controller. */ - dev_err(scic_to_dev(scic), + dev_err(&ihost->pdev->dev, "%s: SCIC Controller 0x%p received fatal controller " "event 0x%x\n", __func__, - scic, + ihost, completion_entry); break; @@ -415,27 +412,27 @@ static void scic_sds_controller_event_completion(struct scic_sds_controller *sci if (ireq != NULL) scic_sds_io_request_event_handler(ireq, completion_entry); else - dev_warn(scic_to_dev(scic), + dev_warn(&ihost->pdev->dev, "%s: SCIC Controller 0x%p received " "event 0x%x for io request object " "that doesnt exist.\n", __func__, - scic, + ihost, completion_entry); break; case SCU_EVENT_SPECIFIC_IT_NEXUS_TIMEOUT: - idev = scic->device_table[index]; + idev = ihost->device_table[index]; if (idev != NULL) scic_sds_remote_device_event_handler(idev, completion_entry); else - dev_warn(scic_to_dev(scic), + dev_warn(&ihost->pdev->dev, "%s: SCIC Controller 0x%p received " "event 0x%x for remote device object " "that doesnt exist.\n", __func__, - scic, + ihost, completion_entry); break; @@ -459,25 +456,25 @@ static void scic_sds_controller_event_completion(struct scic_sds_controller *sci case SCU_EVENT_TYPE_RNC_SUSPEND_TX: case SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX: case SCU_EVENT_TYPE_RNC_OPS_MISC: - if (index < scic->remote_node_entries) { - idev = scic->device_table[index]; + if (index < ihost->remote_node_entries) { + idev = ihost->device_table[index]; if (idev != NULL) scic_sds_remote_device_event_handler(idev, completion_entry); } else - dev_err(scic_to_dev(scic), + dev_err(&ihost->pdev->dev, "%s: SCIC Controller 0x%p received event 0x%x " "for remote device object 0x%0x that doesnt " "exist.\n", __func__, - scic, + ihost, completion_entry, index); break; default: - dev_warn(scic_to_dev(scic), + dev_warn(&ihost->pdev->dev, "%s: SCIC Controller received unknown event code %x\n", __func__, completion_entry); @@ -485,7 +482,7 @@ static void scic_sds_controller_event_completion(struct scic_sds_controller *sci } } -static void scic_sds_controller_process_completions(struct scic_sds_controller *scic) +static void scic_sds_controller_process_completions(struct isci_host *ihost) { u32 completion_count = 0; u32 completion_entry; @@ -494,47 +491,47 @@ static void scic_sds_controller_process_completions(struct scic_sds_controller * u32 event_get; u32 event_cycle; - dev_dbg(scic_to_dev(scic), + dev_dbg(&ihost->pdev->dev, "%s: completion queue begining get:0x%08x\n", __func__, - scic->completion_queue_get); + ihost->completion_queue_get); /* Get the component parts of the completion queue */ - get_index = NORMALIZE_GET_POINTER(scic->completion_queue_get); - get_cycle = SMU_CQGR_CYCLE_BIT & scic->completion_queue_get; + get_index = NORMALIZE_GET_POINTER(ihost->completion_queue_get); + get_cycle = SMU_CQGR_CYCLE_BIT & ihost->completion_queue_get; - event_get = NORMALIZE_EVENT_POINTER(scic->completion_queue_get); - event_cycle = SMU_CQGR_EVENT_CYCLE_BIT & scic->completion_queue_get; + event_get = NORMALIZE_EVENT_POINTER(ihost->completion_queue_get); + event_cycle = SMU_CQGR_EVENT_CYCLE_BIT & ihost->completion_queue_get; while ( NORMALIZE_GET_POINTER_CYCLE_BIT(get_cycle) - == COMPLETION_QUEUE_CYCLE_BIT(scic->completion_queue[get_index]) + == COMPLETION_QUEUE_CYCLE_BIT(ihost->completion_queue[get_index]) ) { completion_count++; - completion_entry = scic->completion_queue[get_index]; + completion_entry = ihost->completion_queue[get_index]; /* increment the get pointer and check for rollover to toggle the cycle bit */ get_cycle ^= ((get_index+1) & SCU_MAX_COMPLETION_QUEUE_ENTRIES) << (SMU_COMPLETION_QUEUE_GET_CYCLE_BIT_SHIFT - SCU_MAX_COMPLETION_QUEUE_SHIFT); get_index = (get_index+1) & (SCU_MAX_COMPLETION_QUEUE_ENTRIES-1); - dev_dbg(scic_to_dev(scic), + dev_dbg(&ihost->pdev->dev, "%s: completion queue entry:0x%08x\n", __func__, completion_entry); switch (SCU_GET_COMPLETION_TYPE(completion_entry)) { case SCU_COMPLETION_TYPE_TASK: - scic_sds_controller_task_completion(scic, completion_entry); + scic_sds_controller_task_completion(ihost, completion_entry); break; case SCU_COMPLETION_TYPE_SDMA: - scic_sds_controller_sdma_completion(scic, completion_entry); + scic_sds_controller_sdma_completion(ihost, completion_entry); break; case SCU_COMPLETION_TYPE_UFI: - scic_sds_controller_unsolicited_frame(scic, completion_entry); + scic_sds_controller_unsolicited_frame(ihost, completion_entry); break; case SCU_COMPLETION_TYPE_EVENT: @@ -543,11 +540,11 @@ static void scic_sds_controller_process_completions(struct scic_sds_controller * (SMU_COMPLETION_QUEUE_GET_EVENT_CYCLE_BIT_SHIFT - SCU_MAX_EVENTS_SHIFT); event_get = (event_get+1) & (SCU_MAX_EVENTS-1); - scic_sds_controller_event_completion(scic, completion_entry); + scic_sds_controller_event_completion(ihost, completion_entry); break; } default: - dev_warn(scic_to_dev(scic), + dev_warn(&ihost->pdev->dev, "%s: SCIC Controller received unknown " "completion type %x\n", __func__, @@ -558,7 +555,7 @@ static void scic_sds_controller_process_completions(struct scic_sds_controller * /* Update the get register if we completed one or more entries */ if (completion_count > 0) { - scic->completion_queue_get = + ihost->completion_queue_get = SMU_CQGR_GEN_BIT(ENABLE) | SMU_CQGR_GEN_BIT(EVENT_ENABLE) | event_cycle | @@ -566,35 +563,35 @@ static void scic_sds_controller_process_completions(struct scic_sds_controller * get_cycle | SMU_CQGR_GEN_VAL(POINTER, get_index); - writel(scic->completion_queue_get, - &scic->smu_registers->completion_queue_get); + writel(ihost->completion_queue_get, + &ihost->smu_registers->completion_queue_get); } - dev_dbg(scic_to_dev(scic), + dev_dbg(&ihost->pdev->dev, "%s: completion queue ending get:0x%08x\n", __func__, - scic->completion_queue_get); + ihost->completion_queue_get); } -static void scic_sds_controller_error_handler(struct scic_sds_controller *scic) +static void scic_sds_controller_error_handler(struct isci_host *ihost) { u32 interrupt_status; interrupt_status = - readl(&scic->smu_registers->interrupt_status); + readl(&ihost->smu_registers->interrupt_status); if ((interrupt_status & SMU_ISR_QUEUE_SUSPEND) && - scic_sds_controller_completion_queue_has_entries(scic)) { + scic_sds_controller_completion_queue_has_entries(ihost)) { - scic_sds_controller_process_completions(scic); - writel(SMU_ISR_QUEUE_SUSPEND, &scic->smu_registers->interrupt_status); + scic_sds_controller_process_completions(ihost); + writel(SMU_ISR_QUEUE_SUSPEND, &ihost->smu_registers->interrupt_status); } else { - dev_err(scic_to_dev(scic), "%s: status: %#x\n", __func__, + dev_err(&ihost->pdev->dev, "%s: status: %#x\n", __func__, interrupt_status); - sci_change_state(&scic->sm, SCIC_FAILED); + sci_change_state(&ihost->sm, SCIC_FAILED); return; } @@ -602,22 +599,21 @@ static void scic_sds_controller_error_handler(struct scic_sds_controller *scic) /* If we dont process any completions I am not sure that we want to do this. * We are in the middle of a hardware fault and should probably be reset. */ - writel(0, &scic->smu_registers->interrupt_mask); + writel(0, &ihost->smu_registers->interrupt_mask); } irqreturn_t isci_intx_isr(int vec, void *data) { irqreturn_t ret = IRQ_NONE; struct isci_host *ihost = data; - struct scic_sds_controller *scic = &ihost->sci; - if (scic_sds_controller_isr(scic)) { - writel(SMU_ISR_COMPLETION, &scic->smu_registers->interrupt_status); + if (scic_sds_controller_isr(ihost)) { + writel(SMU_ISR_COMPLETION, &ihost->smu_registers->interrupt_status); tasklet_schedule(&ihost->completion_tasklet); ret = IRQ_HANDLED; - } else if (scic_sds_controller_error_isr(scic)) { + } else if (scic_sds_controller_error_isr(ihost)) { spin_lock(&ihost->scic_lock); - scic_sds_controller_error_handler(scic); + scic_sds_controller_error_handler(ihost); spin_unlock(&ihost->scic_lock); ret = IRQ_HANDLED; } @@ -629,8 +625,8 @@ irqreturn_t isci_error_isr(int vec, void *data) { struct isci_host *ihost = data; - if (scic_sds_controller_error_isr(&ihost->sci)) - scic_sds_controller_error_handler(&ihost->sci); + if (scic_sds_controller_error_isr(ihost)) + scic_sds_controller_error_handler(ihost); return IRQ_HANDLED; } @@ -685,11 +681,10 @@ int isci_host_scan_finished(struct Scsi_Host *shost, unsigned long time) * This method returns the number of milliseconds for the suggested start * operation timeout. */ -static u32 scic_controller_get_suggested_start_timeout( - struct scic_sds_controller *sc) +static u32 scic_controller_get_suggested_start_timeout(struct isci_host *ihost) { /* Validate the user supplied parameters. */ - if (sc == NULL) + if (!ihost) return 0; /* @@ -711,35 +706,32 @@ static u32 scic_controller_get_suggested_start_timeout( + ((SCI_MAX_PHYS - 1) * SCIC_SDS_CONTROLLER_POWER_CONTROL_INTERVAL); } -static void scic_controller_enable_interrupts( - struct scic_sds_controller *scic) +static void scic_controller_enable_interrupts(struct isci_host *ihost) { - BUG_ON(scic->smu_registers == NULL); - writel(0, &scic->smu_registers->interrupt_mask); + BUG_ON(ihost->smu_registers == NULL); + writel(0, &ihost->smu_registers->interrupt_mask); } -void scic_controller_disable_interrupts( - struct scic_sds_controller *scic) +void scic_controller_disable_interrupts(struct isci_host *ihost) { - BUG_ON(scic->smu_registers == NULL); - writel(0xffffffff, &scic->smu_registers->interrupt_mask); + BUG_ON(ihost->smu_registers == NULL); + writel(0xffffffff, &ihost->smu_registers->interrupt_mask); } -static void scic_sds_controller_enable_port_task_scheduler( - struct scic_sds_controller *scic) +static void scic_sds_controller_enable_port_task_scheduler(struct isci_host *ihost) { u32 port_task_scheduler_value; port_task_scheduler_value = - readl(&scic->scu_registers->peg0.ptsg.control); + readl(&ihost->scu_registers->peg0.ptsg.control); port_task_scheduler_value |= (SCU_PTSGCR_GEN_BIT(ETM_ENABLE) | SCU_PTSGCR_GEN_BIT(PTSG_ENABLE)); writel(port_task_scheduler_value, - &scic->scu_registers->peg0.ptsg.control); + &ihost->scu_registers->peg0.ptsg.control); } -static void scic_sds_controller_assign_task_entries(struct scic_sds_controller *scic) +static void scic_sds_controller_assign_task_entries(struct isci_host *ihost) { u32 task_assignment; @@ -749,32 +741,32 @@ static void scic_sds_controller_assign_task_entries(struct scic_sds_controller * */ task_assignment = - readl(&scic->smu_registers->task_context_assignment[0]); + readl(&ihost->smu_registers->task_context_assignment[0]); task_assignment |= (SMU_TCA_GEN_VAL(STARTING, 0)) | - (SMU_TCA_GEN_VAL(ENDING, scic->task_context_entries - 1)) | + (SMU_TCA_GEN_VAL(ENDING, ihost->task_context_entries - 1)) | (SMU_TCA_GEN_BIT(RANGE_CHECK_ENABLE)); writel(task_assignment, - &scic->smu_registers->task_context_assignment[0]); + &ihost->smu_registers->task_context_assignment[0]); } -static void scic_sds_controller_initialize_completion_queue(struct scic_sds_controller *scic) +static void scic_sds_controller_initialize_completion_queue(struct isci_host *ihost) { u32 index; u32 completion_queue_control_value; u32 completion_queue_get_value; u32 completion_queue_put_value; - scic->completion_queue_get = 0; + ihost->completion_queue_get = 0; completion_queue_control_value = (SMU_CQC_QUEUE_LIMIT_SET(SCU_MAX_COMPLETION_QUEUE_ENTRIES - 1) | SMU_CQC_EVENT_LIMIT_SET(SCU_MAX_EVENTS - 1)); writel(completion_queue_control_value, - &scic->smu_registers->completion_queue_control); + &ihost->smu_registers->completion_queue_control); /* Set the completion queue get pointer and enable the queue */ @@ -786,7 +778,7 @@ static void scic_sds_controller_initialize_completion_queue(struct scic_sds_cont ); writel(completion_queue_get_value, - &scic->smu_registers->completion_queue_get); + &ihost->smu_registers->completion_queue_get); /* Set the completion queue put pointer */ completion_queue_put_value = ( @@ -795,7 +787,7 @@ static void scic_sds_controller_initialize_completion_queue(struct scic_sds_cont ); writel(completion_queue_put_value, - &scic->smu_registers->completion_queue_put); + &ihost->smu_registers->completion_queue_put); /* Initialize the cycle bit of the completion queue entries */ for (index = 0; index < SCU_MAX_COMPLETION_QUEUE_ENTRIES; index++) { @@ -803,11 +795,11 @@ static void scic_sds_controller_initialize_completion_queue(struct scic_sds_cont * If get.cycle_bit != completion_queue.cycle_bit * its not a valid completion queue entry * so at system start all entries are invalid */ - scic->completion_queue[index] = 0x80000000; + ihost->completion_queue[index] = 0x80000000; } } -static void scic_sds_controller_initialize_unsolicited_frame_queue(struct scic_sds_controller *scic) +static void scic_sds_controller_initialize_unsolicited_frame_queue(struct isci_host *ihost) { u32 frame_queue_control_value; u32 frame_queue_get_value; @@ -818,7 +810,7 @@ static void scic_sds_controller_initialize_unsolicited_frame_queue(struct scic_s SCU_UFQC_GEN_VAL(QUEUE_SIZE, SCU_MAX_UNSOLICITED_FRAMES); writel(frame_queue_control_value, - &scic->scu_registers->sdma.unsolicited_frame_queue_control); + &ihost->scu_registers->sdma.unsolicited_frame_queue_control); /* Setup the get pointer for the unsolicited frame queue */ frame_queue_get_value = ( @@ -827,11 +819,11 @@ static void scic_sds_controller_initialize_unsolicited_frame_queue(struct scic_s ); writel(frame_queue_get_value, - &scic->scu_registers->sdma.unsolicited_frame_get_pointer); + &ihost->scu_registers->sdma.unsolicited_frame_get_pointer); /* Setup the put pointer for the unsolicited frame queue */ frame_queue_put_value = SCU_UFQPP_GEN_VAL(POINTER, 0); writel(frame_queue_put_value, - &scic->scu_registers->sdma.unsolicited_frame_put_pointer); + &ihost->scu_registers->sdma.unsolicited_frame_put_pointer); } /** @@ -846,17 +838,16 @@ static void scic_sds_controller_initialize_unsolicited_frame_queue(struct scic_s * none. */ static void scic_sds_controller_transition_to_ready( - struct scic_sds_controller *scic, + struct isci_host *ihost, enum sci_status status) { - struct isci_host *ihost = scic_to_ihost(scic); - if (scic->sm.current_state_id == SCIC_STARTING) { + if (ihost->sm.current_state_id == SCIC_STARTING) { /* * We move into the ready state, because some of the phys/ports * may be up and operational. */ - sci_change_state(&scic->sm, SCIC_READY); + sci_change_state(&ihost->sm, SCIC_READY); isci_host_start_complete(ihost, status); } @@ -892,19 +883,18 @@ static bool is_phy_starting(struct isci_phy *iphy) * controller to the READY state and inform the user * (scic_cb_controller_start_complete()). */ -static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_controller *scic) +static enum sci_status scic_sds_controller_start_next_phy(struct isci_host *ihost) { - struct isci_host *ihost = scic_to_ihost(scic); - struct scic_sds_oem_params *oem = &scic->oem_parameters.sds1; + struct scic_sds_oem_params *oem = &ihost->oem_parameters.sds1; struct isci_phy *iphy; enum sci_status status; status = SCI_SUCCESS; - if (scic->phy_startup_timer_pending) + if (ihost->phy_startup_timer_pending) return status; - if (scic->next_phy_to_start >= SCI_MAX_PHYS) { + if (ihost->next_phy_to_start >= SCI_MAX_PHYS) { bool is_controller_start_complete = true; u32 state; u8 index; @@ -934,16 +924,16 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro * The controller has successfully finished the start process. * Inform the SCI Core user and transition to the READY state. */ if (is_controller_start_complete == true) { - scic_sds_controller_transition_to_ready(scic, SCI_SUCCESS); - sci_del_timer(&scic->phy_timer); - scic->phy_startup_timer_pending = false; + scic_sds_controller_transition_to_ready(ihost, SCI_SUCCESS); + sci_del_timer(&ihost->phy_timer); + ihost->phy_startup_timer_pending = false; } } else { - iphy = &ihost->phys[scic->next_phy_to_start]; + iphy = &ihost->phys[ihost->next_phy_to_start]; if (oem->controller.mode_type == SCIC_PORT_MANUAL_CONFIGURATION_MODE) { if (phy_get_non_dummy_port(iphy) == NULL) { - scic->next_phy_to_start++; + ihost->next_phy_to_start++; /* Caution recursion ahead be forwarned * @@ -954,27 +944,27 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro * incorrectly for the PORT or it was never * assigned to a PORT */ - return scic_sds_controller_start_next_phy(scic); + return scic_sds_controller_start_next_phy(ihost); } } status = scic_sds_phy_start(iphy); if (status == SCI_SUCCESS) { - sci_mod_timer(&scic->phy_timer, + sci_mod_timer(&ihost->phy_timer, SCIC_SDS_CONTROLLER_PHY_START_TIMEOUT); - scic->phy_startup_timer_pending = true; + ihost->phy_startup_timer_pending = true; } else { - dev_warn(scic_to_dev(scic), + dev_warn(&ihost->pdev->dev, "%s: Controller stop operation failed " "to stop phy %d because of status " "%d.\n", __func__, - ihost->phys[scic->next_phy_to_start].phy_index, + ihost->phys[ihost->next_phy_to_start].phy_index, status); } - scic->next_phy_to_start++; + ihost->next_phy_to_start++; } return status; @@ -983,8 +973,7 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro static void phy_startup_timeout(unsigned long data) { struct sci_timer *tmr = (struct sci_timer *)data; - struct scic_sds_controller *scic = container_of(tmr, typeof(*scic), phy_timer); - struct isci_host *ihost = scic_to_ihost(scic); + struct isci_host *ihost = container_of(tmr, typeof(*ihost), phy_timer); unsigned long flags; enum sci_status status; @@ -993,10 +982,10 @@ static void phy_startup_timeout(unsigned long data) if (tmr->cancel) goto done; - scic->phy_startup_timer_pending = false; + ihost->phy_startup_timer_pending = false; do { - status = scic_sds_controller_start_next_phy(scic); + status = scic_sds_controller_start_next_phy(ihost); } while (status != SCI_SUCCESS); done: @@ -1008,15 +997,14 @@ static u16 isci_tci_active(struct isci_host *ihost) return CIRC_CNT(ihost->tci_head, ihost->tci_tail, SCI_MAX_IO_REQUESTS); } -static enum sci_status scic_controller_start(struct scic_sds_controller *scic, +static enum sci_status scic_controller_start(struct isci_host *ihost, u32 timeout) { - struct isci_host *ihost = scic_to_ihost(scic); enum sci_status result; u16 index; - if (scic->sm.current_state_id != SCIC_INITIALIZED) { - dev_warn(scic_to_dev(scic), + if (ihost->sm.current_state_id != SCIC_INITIALIZED) { + dev_warn(&ihost->pdev->dev, "SCIC Controller start operation requested in " "invalid state\n"); return SCI_FAILURE_INVALID_STATE; @@ -1026,34 +1014,34 @@ static enum sci_status scic_controller_start(struct scic_sds_controller *scic, BUILD_BUG_ON(SCI_MAX_IO_REQUESTS > 1 << sizeof(ihost->tci_pool[0]) * 8); ihost->tci_head = 0; ihost->tci_tail = 0; - for (index = 0; index < scic->task_context_entries; index++) + for (index = 0; index < ihost->task_context_entries; index++) isci_tci_free(ihost, index); /* Build the RNi free pool */ scic_sds_remote_node_table_initialize( - &scic->available_remote_nodes, - scic->remote_node_entries); + &ihost->available_remote_nodes, + ihost->remote_node_entries); /* * Before anything else lets make sure we will not be * interrupted by the hardware. */ - scic_controller_disable_interrupts(scic); + scic_controller_disable_interrupts(ihost); /* Enable the port task scheduler */ - scic_sds_controller_enable_port_task_scheduler(scic); + scic_sds_controller_enable_port_task_scheduler(ihost); - /* Assign all the task entries to scic physical function */ - scic_sds_controller_assign_task_entries(scic); + /* Assign all the task entries to ihost physical function */ + scic_sds_controller_assign_task_entries(ihost); /* Now initialize the completion queue */ - scic_sds_controller_initialize_completion_queue(scic); + scic_sds_controller_initialize_completion_queue(ihost); /* Initialize the unsolicited frame queue for use */ - scic_sds_controller_initialize_unsolicited_frame_queue(scic); + scic_sds_controller_initialize_unsolicited_frame_queue(ihost); /* Start all of the ports on this controller */ - for (index = 0; index < scic->logical_port_entries; index++) { + for (index = 0; index < ihost->logical_port_entries; index++) { struct isci_port *iport = &ihost->ports[index]; result = scic_sds_port_start(iport); @@ -1061,11 +1049,11 @@ static enum sci_status scic_controller_start(struct scic_sds_controller *scic, return result; } - scic_sds_controller_start_next_phy(scic); + scic_sds_controller_start_next_phy(ihost); - sci_mod_timer(&scic->timer, timeout); + sci_mod_timer(&ihost->timer, timeout); - sci_change_state(&scic->sm, SCIC_STARTING); + sci_change_state(&ihost->sm, SCIC_STARTING); return SCI_SUCCESS; } @@ -1073,35 +1061,35 @@ static enum sci_status scic_controller_start(struct scic_sds_controller *scic, void isci_host_scan_start(struct Scsi_Host *shost) { struct isci_host *ihost = SHOST_TO_SAS_HA(shost)->lldd_ha; - unsigned long tmo = scic_controller_get_suggested_start_timeout(&ihost->sci); + unsigned long tmo = scic_controller_get_suggested_start_timeout(ihost); set_bit(IHOST_START_PENDING, &ihost->flags); spin_lock_irq(&ihost->scic_lock); - scic_controller_start(&ihost->sci, tmo); - scic_controller_enable_interrupts(&ihost->sci); + scic_controller_start(ihost, tmo); + scic_controller_enable_interrupts(ihost); spin_unlock_irq(&ihost->scic_lock); } static void isci_host_stop_complete(struct isci_host *ihost, enum sci_status completion_status) { isci_host_change_state(ihost, isci_stopped); - scic_controller_disable_interrupts(&ihost->sci); + scic_controller_disable_interrupts(ihost); clear_bit(IHOST_STOP_PENDING, &ihost->flags); wake_up(&ihost->eventq); } -static void scic_sds_controller_completion_handler(struct scic_sds_controller *scic) +static void scic_sds_controller_completion_handler(struct isci_host *ihost) { /* Empty out the completion queue */ - if (scic_sds_controller_completion_queue_has_entries(scic)) - scic_sds_controller_process_completions(scic); + if (scic_sds_controller_completion_queue_has_entries(ihost)) + scic_sds_controller_process_completions(ihost); /* Clear the interrupt and enable all interrupts again */ - writel(SMU_ISR_COMPLETION, &scic->smu_registers->interrupt_status); + writel(SMU_ISR_COMPLETION, &ihost->smu_registers->interrupt_status); /* Could we write the value of SMU_ISR_COMPLETION? */ - writel(0xFF000000, &scic->smu_registers->interrupt_mask); - writel(0, &scic->smu_registers->interrupt_mask); + writel(0xFF000000, &ihost->smu_registers->interrupt_mask); + writel(0, &ihost->smu_registers->interrupt_mask); } /** @@ -1114,7 +1102,7 @@ static void scic_sds_controller_completion_handler(struct scic_sds_controller *s */ static void isci_host_completion_routine(unsigned long data) { - struct isci_host *isci_host = (struct isci_host *)data; + struct isci_host *ihost = (struct isci_host *)data; struct list_head completed_request_list; struct list_head errored_request_list; struct list_head *current_position; @@ -1126,20 +1114,20 @@ static void isci_host_completion_routine(unsigned long data) INIT_LIST_HEAD(&completed_request_list); INIT_LIST_HEAD(&errored_request_list); - spin_lock_irq(&isci_host->scic_lock); + spin_lock_irq(&ihost->scic_lock); - scic_sds_controller_completion_handler(&isci_host->sci); + scic_sds_controller_completion_handler(ihost); /* Take the lists of completed I/Os from the host. */ - list_splice_init(&isci_host->requests_to_complete, + list_splice_init(&ihost->requests_to_complete, &completed_request_list); /* Take the list of errored I/Os from the host. */ - list_splice_init(&isci_host->requests_to_errorback, + list_splice_init(&ihost->requests_to_errorback, &errored_request_list); - spin_unlock_irq(&isci_host->scic_lock); + spin_unlock_irq(&ihost->scic_lock); /* Process any completions in the lists. */ list_for_each_safe(current_position, next_position, @@ -1150,7 +1138,7 @@ static void isci_host_completion_routine(unsigned long data) task = isci_request_access_task(request); /* Normal notification (task_done) */ - dev_dbg(&isci_host->pdev->dev, + dev_dbg(&ihost->pdev->dev, "%s: Normal - request/task = %p/%p\n", __func__, request, @@ -1169,9 +1157,9 @@ static void isci_host_completion_routine(unsigned long data) } } - spin_lock_irq(&isci_host->scic_lock); - isci_free_tag(isci_host, request->io_tag); - spin_unlock_irq(&isci_host->scic_lock); + spin_lock_irq(&ihost->scic_lock); + isci_free_tag(ihost, request->io_tag); + spin_unlock_irq(&ihost->scic_lock); } list_for_each_entry_safe(request, next_request, &errored_request_list, completed_node) { @@ -1179,7 +1167,7 @@ static void isci_host_completion_routine(unsigned long data) task = isci_request_access_task(request); /* Use sas_task_abort */ - dev_warn(&isci_host->pdev->dev, + dev_warn(&ihost->pdev->dev, "%s: Error - request/task = %p/%p\n", __func__, request, @@ -1202,13 +1190,13 @@ static void isci_host_completion_routine(unsigned long data) * it. */ - spin_lock_irq(&isci_host->scic_lock); + spin_lock_irq(&ihost->scic_lock); /* Remove the request from the remote device's list * of pending requests. */ list_del_init(&request->dev_node); - isci_free_tag(isci_host, request->io_tag); - spin_unlock_irq(&isci_host->scic_lock); + isci_free_tag(ihost, request->io_tag); + spin_unlock_irq(&ihost->scic_lock); } } @@ -1232,18 +1220,18 @@ static void isci_host_completion_routine(unsigned long data) * controller is already in the STOPPED state. SCI_FAILURE_INVALID_STATE if the * controller is not either in the STARTED or STOPPED states. */ -static enum sci_status scic_controller_stop(struct scic_sds_controller *scic, +static enum sci_status scic_controller_stop(struct isci_host *ihost, u32 timeout) { - if (scic->sm.current_state_id != SCIC_READY) { - dev_warn(scic_to_dev(scic), + if (ihost->sm.current_state_id != SCIC_READY) { + dev_warn(&ihost->pdev->dev, "SCIC Controller stop operation requested in " "invalid state\n"); return SCI_FAILURE_INVALID_STATE; } - sci_mod_timer(&scic->timer, timeout); - sci_change_state(&scic->sm, SCIC_STOPPING); + sci_mod_timer(&ihost->timer, timeout); + sci_change_state(&ihost->sm, SCIC_STOPPING); return SCI_SUCCESS; } @@ -1259,9 +1247,9 @@ static enum sci_status scic_controller_stop(struct scic_sds_controller *scic, * SCI_SUCCESS if the reset operation successfully started. SCI_FATAL_ERROR if * the controller reset operation is unable to complete. */ -static enum sci_status scic_controller_reset(struct scic_sds_controller *scic) +static enum sci_status scic_controller_reset(struct isci_host *ihost) { - switch (scic->sm.current_state_id) { + switch (ihost->sm.current_state_id) { case SCIC_RESET: case SCIC_READY: case SCIC_STOPPED: @@ -1270,10 +1258,10 @@ static enum sci_status scic_controller_reset(struct scic_sds_controller *scic) * The reset operation is not a graceful cleanup, just * perform the state transition. */ - sci_change_state(&scic->sm, SCIC_RESETTING); + sci_change_state(&ihost->sm, SCIC_RESETTING); return SCI_SUCCESS; default: - dev_warn(scic_to_dev(scic), + dev_warn(&ihost->pdev->dev, "SCIC Controller reset operation requested in " "invalid state\n"); return SCI_FAILURE_INVALID_STATE; @@ -1298,14 +1286,14 @@ void isci_host_deinit(struct isci_host *ihost) set_bit(IHOST_STOP_PENDING, &ihost->flags); spin_lock_irq(&ihost->scic_lock); - scic_controller_stop(&ihost->sci, SCIC_CONTROLLER_STOP_TIMEOUT); + scic_controller_stop(ihost, SCIC_CONTROLLER_STOP_TIMEOUT); spin_unlock_irq(&ihost->scic_lock); wait_for_stop(ihost); - scic_controller_reset(&ihost->sci); + scic_controller_reset(ihost); /* Cancel any/all outstanding port timers */ - for (i = 0; i < ihost->sci.logical_port_entries; i++) { + for (i = 0; i < ihost->logical_port_entries; i++) { struct isci_port *iport = &ihost->ports[i]; del_timer_sync(&iport->timer.timer); } @@ -1316,13 +1304,13 @@ void isci_host_deinit(struct isci_host *ihost) del_timer_sync(&iphy->sata_timer.timer); } - del_timer_sync(&ihost->sci.port_agent.timer.timer); + del_timer_sync(&ihost->port_agent.timer.timer); - del_timer_sync(&ihost->sci.power_control.timer.timer); + del_timer_sync(&ihost->power_control.timer.timer); - del_timer_sync(&ihost->sci.timer.timer); + del_timer_sync(&ihost->timer.timer); - del_timer_sync(&ihost->sci.phy_timer.timer); + del_timer_sync(&ihost->phy_timer.timer); } static void __iomem *scu_base(struct isci_host *isci_host) @@ -1369,16 +1357,16 @@ static void isci_user_parameters_get( static void scic_sds_controller_initial_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_controller *scic = container_of(sm, typeof(*scic), sm); + struct isci_host *ihost = container_of(sm, typeof(*ihost), sm); - sci_change_state(&scic->sm, SCIC_RESET); + sci_change_state(&ihost->sm, SCIC_RESET); } static inline void scic_sds_controller_starting_state_exit(struct sci_base_state_machine *sm) { - struct scic_sds_controller *scic = container_of(sm, typeof(*scic), sm); + struct isci_host *ihost = container_of(sm, typeof(*ihost), sm); - sci_del_timer(&scic->timer); + sci_del_timer(&ihost->timer); } #define INTERRUPT_COALESCE_TIMEOUT_BASE_RANGE_LOWER_BOUND_NS 853 @@ -1405,10 +1393,10 @@ static inline void scic_sds_controller_starting_state_exit(struct sci_base_state * SCI_SUCCESS The user successfully updated the interrutp coalescence. * SCI_FAILURE_INVALID_PARAMETER_VALUE The user input value is out of range. */ -static enum sci_status scic_controller_set_interrupt_coalescence( - struct scic_sds_controller *scic_controller, - u32 coalesce_number, - u32 coalesce_timeout) +static enum sci_status +scic_controller_set_interrupt_coalescence(struct isci_host *ihost, + u32 coalesce_number, + u32 coalesce_timeout) { u8 timeout_encode = 0; u32 min = 0; @@ -1491,11 +1479,11 @@ static enum sci_status scic_controller_set_interrupt_coalescence( writel(SMU_ICC_GEN_VAL(NUMBER, coalesce_number) | SMU_ICC_GEN_VAL(TIMER, timeout_encode), - &scic_controller->smu_registers->interrupt_coalesce_control); + &ihost->smu_registers->interrupt_coalesce_control); - scic_controller->interrupt_coalesce_number = (u16)coalesce_number; - scic_controller->interrupt_coalesce_timeout = coalesce_timeout / 100; + ihost->interrupt_coalesce_number = (u16)coalesce_number; + ihost->interrupt_coalesce_timeout = coalesce_timeout / 100; return SCI_SUCCESS; } @@ -1503,26 +1491,25 @@ static enum sci_status scic_controller_set_interrupt_coalescence( static void scic_sds_controller_ready_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_controller *scic = container_of(sm, typeof(*scic), sm); + struct isci_host *ihost = container_of(sm, typeof(*ihost), sm); /* set the default interrupt coalescence number and timeout value. */ - scic_controller_set_interrupt_coalescence(scic, 0x10, 250); + scic_controller_set_interrupt_coalescence(ihost, 0x10, 250); } static void scic_sds_controller_ready_state_exit(struct sci_base_state_machine *sm) { - struct scic_sds_controller *scic = container_of(sm, typeof(*scic), sm); + struct isci_host *ihost = container_of(sm, typeof(*ihost), sm); /* disable interrupt coalescence. */ - scic_controller_set_interrupt_coalescence(scic, 0, 0); + scic_controller_set_interrupt_coalescence(ihost, 0, 0); } -static enum sci_status scic_sds_controller_stop_phys(struct scic_sds_controller *scic) +static enum sci_status scic_sds_controller_stop_phys(struct isci_host *ihost) { u32 index; enum sci_status status; enum sci_status phy_status; - struct isci_host *ihost = scic_to_ihost(scic); status = SCI_SUCCESS; @@ -1533,7 +1520,7 @@ static enum sci_status scic_sds_controller_stop_phys(struct scic_sds_controller phy_status != SCI_FAILURE_INVALID_STATE) { status = SCI_FAILURE; - dev_warn(scic_to_dev(scic), + dev_warn(&ihost->pdev->dev, "%s: Controller stop operation failed to stop " "phy %d because of status %d.\n", __func__, @@ -1544,14 +1531,13 @@ static enum sci_status scic_sds_controller_stop_phys(struct scic_sds_controller return status; } -static enum sci_status scic_sds_controller_stop_ports(struct scic_sds_controller *scic) +static enum sci_status scic_sds_controller_stop_ports(struct isci_host *ihost) { u32 index; enum sci_status port_status; enum sci_status status = SCI_SUCCESS; - struct isci_host *ihost = scic_to_ihost(scic); - for (index = 0; index < scic->logical_port_entries; index++) { + for (index = 0; index < ihost->logical_port_entries; index++) { struct isci_port *iport = &ihost->ports[index]; port_status = scic_sds_port_stop(iport); @@ -1560,7 +1546,7 @@ static enum sci_status scic_sds_controller_stop_ports(struct scic_sds_controller (port_status != SCI_FAILURE_INVALID_STATE)) { status = SCI_FAILURE; - dev_warn(scic_to_dev(scic), + dev_warn(&ihost->pdev->dev, "%s: Controller stop operation failed to " "stop port %d because of status %d.\n", __func__, @@ -1572,7 +1558,7 @@ static enum sci_status scic_sds_controller_stop_ports(struct scic_sds_controller return status; } -static enum sci_status scic_sds_controller_stop_devices(struct scic_sds_controller *scic) +static enum sci_status scic_sds_controller_stop_devices(struct isci_host *ihost) { u32 index; enum sci_status status; @@ -1580,19 +1566,19 @@ static enum sci_status scic_sds_controller_stop_devices(struct scic_sds_controll status = SCI_SUCCESS; - for (index = 0; index < scic->remote_node_entries; index++) { - if (scic->device_table[index] != NULL) { + for (index = 0; index < ihost->remote_node_entries; index++) { + if (ihost->device_table[index] != NULL) { /* / @todo What timeout value do we want to provide to this request? */ - device_status = scic_remote_device_stop(scic->device_table[index], 0); + device_status = scic_remote_device_stop(ihost->device_table[index], 0); if ((device_status != SCI_SUCCESS) && (device_status != SCI_FAILURE_INVALID_STATE)) { - dev_warn(scic_to_dev(scic), + dev_warn(&ihost->pdev->dev, "%s: Controller stop operation failed " "to stop device 0x%p because of " "status %d.\n", __func__, - scic->device_table[index], device_status); + ihost->device_table[index], device_status); } } } @@ -1602,19 +1588,19 @@ static enum sci_status scic_sds_controller_stop_devices(struct scic_sds_controll static void scic_sds_controller_stopping_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_controller *scic = container_of(sm, typeof(*scic), sm); + struct isci_host *ihost = container_of(sm, typeof(*ihost), sm); /* Stop all of the components for this controller */ - scic_sds_controller_stop_phys(scic); - scic_sds_controller_stop_ports(scic); - scic_sds_controller_stop_devices(scic); + scic_sds_controller_stop_phys(ihost); + scic_sds_controller_stop_ports(ihost); + scic_sds_controller_stop_devices(ihost); } static void scic_sds_controller_stopping_state_exit(struct sci_base_state_machine *sm) { - struct scic_sds_controller *scic = container_of(sm, typeof(*scic), sm); + struct isci_host *ihost = container_of(sm, typeof(*ihost), sm); - sci_del_timer(&scic->timer); + sci_del_timer(&ihost->timer); } @@ -1623,30 +1609,30 @@ static void scic_sds_controller_stopping_state_exit(struct sci_base_state_machin * * This method will reset the controller hardware. */ -static void scic_sds_controller_reset_hardware(struct scic_sds_controller *scic) +static void scic_sds_controller_reset_hardware(struct isci_host *ihost) { /* Disable interrupts so we dont take any spurious interrupts */ - scic_controller_disable_interrupts(scic); + scic_controller_disable_interrupts(ihost); /* Reset the SCU */ - writel(0xFFFFFFFF, &scic->smu_registers->soft_reset_control); + writel(0xFFFFFFFF, &ihost->smu_registers->soft_reset_control); /* Delay for 1ms to before clearing the CQP and UFQPR. */ udelay(1000); /* The write to the CQGR clears the CQP */ - writel(0x00000000, &scic->smu_registers->completion_queue_get); + writel(0x00000000, &ihost->smu_registers->completion_queue_get); /* The write to the UFQGP clears the UFQPR */ - writel(0, &scic->scu_registers->sdma.unsolicited_frame_get_pointer); + writel(0, &ihost->scu_registers->sdma.unsolicited_frame_get_pointer); } static void scic_sds_controller_resetting_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_controller *scic = container_of(sm, typeof(*scic), sm); + struct isci_host *ihost = container_of(sm, typeof(*ihost), sm); - scic_sds_controller_reset_hardware(scic); - sci_change_state(&scic->sm, SCIC_RESET); + scic_sds_controller_reset_hardware(ihost); + sci_change_state(&ihost->sm, SCIC_RESET); } static const struct sci_base_state scic_sds_controller_state_table[] = { @@ -1674,58 +1660,56 @@ static const struct sci_base_state scic_sds_controller_state_table[] = { [SCIC_FAILED] = {} }; -static void scic_sds_controller_set_default_config_parameters(struct scic_sds_controller *scic) +static void scic_sds_controller_set_default_config_parameters(struct isci_host *ihost) { /* these defaults are overridden by the platform / firmware */ - struct isci_host *ihost = scic_to_ihost(scic); u16 index; /* Default to APC mode. */ - scic->oem_parameters.sds1.controller.mode_type = SCIC_PORT_AUTOMATIC_CONFIGURATION_MODE; + ihost->oem_parameters.sds1.controller.mode_type = SCIC_PORT_AUTOMATIC_CONFIGURATION_MODE; /* Default to APC mode. */ - scic->oem_parameters.sds1.controller.max_concurrent_dev_spin_up = 1; + ihost->oem_parameters.sds1.controller.max_concurrent_dev_spin_up = 1; /* Default to no SSC operation. */ - scic->oem_parameters.sds1.controller.do_enable_ssc = false; + ihost->oem_parameters.sds1.controller.do_enable_ssc = false; /* Initialize all of the port parameter information to narrow ports. */ for (index = 0; index < SCI_MAX_PORTS; index++) { - scic->oem_parameters.sds1.ports[index].phy_mask = 0; + ihost->oem_parameters.sds1.ports[index].phy_mask = 0; } /* Initialize all of the phy parameter information. */ for (index = 0; index < SCI_MAX_PHYS; index++) { /* Default to 6G (i.e. Gen 3) for now. */ - scic->user_parameters.sds1.phys[index].max_speed_generation = 3; + ihost->user_parameters.sds1.phys[index].max_speed_generation = 3; /* the frequencies cannot be 0 */ - scic->user_parameters.sds1.phys[index].align_insertion_frequency = 0x7f; - scic->user_parameters.sds1.phys[index].in_connection_align_insertion_frequency = 0xff; - scic->user_parameters.sds1.phys[index].notify_enable_spin_up_insertion_frequency = 0x33; + ihost->user_parameters.sds1.phys[index].align_insertion_frequency = 0x7f; + ihost->user_parameters.sds1.phys[index].in_connection_align_insertion_frequency = 0xff; + ihost->user_parameters.sds1.phys[index].notify_enable_spin_up_insertion_frequency = 0x33; /* * Previous Vitesse based expanders had a arbitration issue that * is worked around by having the upper 32-bits of SAS address * with a value greater then the Vitesse company identifier. * Hence, usage of 0x5FCFFFFF. */ - scic->oem_parameters.sds1.phys[index].sas_address.low = 0x1 + ihost->id; - scic->oem_parameters.sds1.phys[index].sas_address.high = 0x5FCFFFFF; + ihost->oem_parameters.sds1.phys[index].sas_address.low = 0x1 + ihost->id; + ihost->oem_parameters.sds1.phys[index].sas_address.high = 0x5FCFFFFF; } - scic->user_parameters.sds1.stp_inactivity_timeout = 5; - scic->user_parameters.sds1.ssp_inactivity_timeout = 5; - scic->user_parameters.sds1.stp_max_occupancy_timeout = 5; - scic->user_parameters.sds1.ssp_max_occupancy_timeout = 20; - scic->user_parameters.sds1.no_outbound_task_timeout = 20; + ihost->user_parameters.sds1.stp_inactivity_timeout = 5; + ihost->user_parameters.sds1.ssp_inactivity_timeout = 5; + ihost->user_parameters.sds1.stp_max_occupancy_timeout = 5; + ihost->user_parameters.sds1.ssp_max_occupancy_timeout = 20; + ihost->user_parameters.sds1.no_outbound_task_timeout = 20; } static void controller_timeout(unsigned long data) { struct sci_timer *tmr = (struct sci_timer *)data; - struct scic_sds_controller *scic = container_of(tmr, typeof(*scic), timer); - struct isci_host *ihost = scic_to_ihost(scic); - struct sci_base_state_machine *sm = &scic->sm; + struct isci_host *ihost = container_of(tmr, typeof(*ihost), timer); + struct sci_base_state_machine *sm = &ihost->sm; unsigned long flags; spin_lock_irqsave(&ihost->scic_lock, flags); @@ -1734,12 +1718,12 @@ static void controller_timeout(unsigned long data) goto done; if (sm->current_state_id == SCIC_STARTING) - scic_sds_controller_transition_to_ready(scic, SCI_FAILURE_TIMEOUT); + scic_sds_controller_transition_to_ready(ihost, SCI_FAILURE_TIMEOUT); else if (sm->current_state_id == SCIC_STOPPING) { sci_change_state(sm, SCIC_FAILED); isci_host_stop_complete(ihost, SCI_FAILURE_TIMEOUT); } else /* / @todo Now what do we want to do in this case? */ - dev_err(scic_to_dev(scic), + dev_err(&ihost->pdev->dev, "%s: Controller timer fired when controller was not " "in a state being timed.\n", __func__); @@ -1764,24 +1748,23 @@ done: * SCI_FAILURE_UNSUPPORTED_INIT_DATA_VERSION This value is returned if the * controller does not support the supplied initialization data version. */ -static enum sci_status scic_controller_construct(struct scic_sds_controller *scic, +static enum sci_status scic_controller_construct(struct isci_host *ihost, void __iomem *scu_base, void __iomem *smu_base) { - struct isci_host *ihost = scic_to_ihost(scic); u8 i; - sci_init_sm(&scic->sm, scic_sds_controller_state_table, SCIC_INITIAL); + sci_init_sm(&ihost->sm, scic_sds_controller_state_table, SCIC_INITIAL); - scic->scu_registers = scu_base; - scic->smu_registers = smu_base; + ihost->scu_registers = scu_base; + ihost->smu_registers = smu_base; - scic_sds_port_configuration_agent_construct(&scic->port_agent); + scic_sds_port_configuration_agent_construct(&ihost->port_agent); /* Construct the ports for this controller */ for (i = 0; i < SCI_MAX_PORTS; i++) - scic_sds_port_construct(&ihost->ports[i], i, scic); - scic_sds_port_construct(&ihost->ports[i], SCIC_SDS_DUMMY_PORT, scic); + scic_sds_port_construct(&ihost->ports[i], i, ihost); + scic_sds_port_construct(&ihost->ports[i], SCIC_SDS_DUMMY_PORT, ihost); /* Construct the phys for this controller */ for (i = 0; i < SCI_MAX_PHYS; i++) { @@ -1790,14 +1773,14 @@ static enum sci_status scic_controller_construct(struct scic_sds_controller *sci &ihost->ports[SCI_MAX_PORTS], i); } - scic->invalid_phy_mask = 0; + ihost->invalid_phy_mask = 0; - sci_init_timer(&scic->timer, controller_timeout); + sci_init_timer(&ihost->timer, controller_timeout); /* Initialize the User and OEM parameters to default values. */ - scic_sds_controller_set_default_config_parameters(scic); + scic_sds_controller_set_default_config_parameters(ihost); - return scic_controller_reset(scic); + return scic_controller_reset(ihost); } int scic_oem_parameters_validate(struct scic_sds_oem_params *oem) @@ -1834,10 +1817,10 @@ int scic_oem_parameters_validate(struct scic_sds_oem_params *oem) return 0; } -static enum sci_status scic_oem_parameters_set(struct scic_sds_controller *scic, +static enum sci_status scic_oem_parameters_set(struct isci_host *ihost, union scic_oem_parameters *scic_parms) { - u32 state = scic->sm.current_state_id; + u32 state = ihost->sm.current_state_id; if (state == SCIC_RESET || state == SCIC_INITIALIZING || @@ -1845,7 +1828,7 @@ static enum sci_status scic_oem_parameters_set(struct scic_sds_controller *scic, if (scic_oem_parameters_validate(&scic_parms->sds1)) return SCI_FAILURE_INVALID_PARAMETER_VALUE; - scic->oem_parameters.sds1 = scic_parms->sds1; + ihost->oem_parameters.sds1 = scic_parms->sds1; return SCI_SUCCESS; } @@ -1854,17 +1837,16 @@ static enum sci_status scic_oem_parameters_set(struct scic_sds_controller *scic, } void scic_oem_parameters_get( - struct scic_sds_controller *scic, + struct isci_host *ihost, union scic_oem_parameters *scic_parms) { - memcpy(scic_parms, (&scic->oem_parameters), sizeof(*scic_parms)); + memcpy(scic_parms, (&ihost->oem_parameters), sizeof(*scic_parms)); } static void power_control_timeout(unsigned long data) { struct sci_timer *tmr = (struct sci_timer *)data; - struct scic_sds_controller *scic = container_of(tmr, typeof(*scic), power_control.timer); - struct isci_host *ihost = scic_to_ihost(scic); + struct isci_host *ihost = container_of(tmr, typeof(*ihost), power_control.timer); struct isci_phy *iphy; unsigned long flags; u8 i; @@ -1874,29 +1856,29 @@ static void power_control_timeout(unsigned long data) if (tmr->cancel) goto done; - scic->power_control.phys_granted_power = 0; + ihost->power_control.phys_granted_power = 0; - if (scic->power_control.phys_waiting == 0) { - scic->power_control.timer_started = false; + if (ihost->power_control.phys_waiting == 0) { + ihost->power_control.timer_started = false; goto done; } for (i = 0; i < SCI_MAX_PHYS; i++) { - if (scic->power_control.phys_waiting == 0) + if (ihost->power_control.phys_waiting == 0) break; - iphy = scic->power_control.requesters[i]; + iphy = ihost->power_control.requesters[i]; if (iphy == NULL) continue; - if (scic->power_control.phys_granted_power >= - scic->oem_parameters.sds1.controller.max_concurrent_dev_spin_up) + if (ihost->power_control.phys_granted_power >= + ihost->oem_parameters.sds1.controller.max_concurrent_dev_spin_up) break; - scic->power_control.requesters[i] = NULL; - scic->power_control.phys_waiting--; - scic->power_control.phys_granted_power++; + ihost->power_control.requesters[i] = NULL; + ihost->power_control.phys_waiting--; + ihost->power_control.phys_granted_power++; scic_sds_phy_consume_power_handler(iphy); } @@ -1905,7 +1887,7 @@ static void power_control_timeout(unsigned long data) * timer in case another phy becomes ready. */ sci_mod_timer(tmr, SCIC_SDS_CONTROLLER_POWER_CONTROL_INTERVAL); - scic->power_control.timer_started = true; + ihost->power_control.timer_started = true; done: spin_unlock_irqrestore(&ihost->scic_lock, flags); @@ -1918,31 +1900,31 @@ done: * */ void scic_sds_controller_power_control_queue_insert( - struct scic_sds_controller *scic, + struct isci_host *ihost, struct isci_phy *iphy) { BUG_ON(iphy == NULL); - if (scic->power_control.phys_granted_power < - scic->oem_parameters.sds1.controller.max_concurrent_dev_spin_up) { - scic->power_control.phys_granted_power++; + if (ihost->power_control.phys_granted_power < + ihost->oem_parameters.sds1.controller.max_concurrent_dev_spin_up) { + ihost->power_control.phys_granted_power++; scic_sds_phy_consume_power_handler(iphy); /* * stop and start the power_control timer. When the timer fires, the * no_of_phys_granted_power will be set to 0 */ - if (scic->power_control.timer_started) - sci_del_timer(&scic->power_control.timer); + if (ihost->power_control.timer_started) + sci_del_timer(&ihost->power_control.timer); - sci_mod_timer(&scic->power_control.timer, + sci_mod_timer(&ihost->power_control.timer, SCIC_SDS_CONTROLLER_POWER_CONTROL_INTERVAL); - scic->power_control.timer_started = true; + ihost->power_control.timer_started = true; } else { /* Add the phy in the waiting list */ - scic->power_control.requesters[iphy->phy_index] = iphy; - scic->power_control.phys_waiting++; + ihost->power_control.requesters[iphy->phy_index] = iphy; + ihost->power_control.phys_waiting++; } } @@ -1953,16 +1935,16 @@ void scic_sds_controller_power_control_queue_insert( * */ void scic_sds_controller_power_control_queue_remove( - struct scic_sds_controller *scic, + struct isci_host *ihost, struct isci_phy *iphy) { BUG_ON(iphy == NULL); - if (scic->power_control.requesters[iphy->phy_index] != NULL) { - scic->power_control.phys_waiting--; + if (ihost->power_control.requesters[iphy->phy_index] != NULL) { + ihost->power_control.phys_waiting--; } - scic->power_control.requesters[iphy->phy_index] = NULL; + ihost->power_control.requesters[iphy->phy_index] = NULL; } #define AFE_REGISTER_WRITE_DELAY 10 @@ -1970,50 +1952,50 @@ void scic_sds_controller_power_control_queue_remove( /* Initialize the AFE for this phy index. We need to read the AFE setup from * the OEM parameters */ -static void scic_sds_controller_afe_initialization(struct scic_sds_controller *scic) +static void scic_sds_controller_afe_initialization(struct isci_host *ihost) { - const struct scic_sds_oem_params *oem = &scic->oem_parameters.sds1; + const struct scic_sds_oem_params *oem = &ihost->oem_parameters.sds1; u32 afe_status; u32 phy_id; /* Clear DFX Status registers */ - writel(0x0081000f, &scic->scu_registers->afe.afe_dfx_master_control0); + writel(0x0081000f, &ihost->scu_registers->afe.afe_dfx_master_control0); udelay(AFE_REGISTER_WRITE_DELAY); if (is_b0()) { /* PM Rx Equalization Save, PM SPhy Rx Acknowledgement * Timer, PM Stagger Timer */ - writel(0x0007BFFF, &scic->scu_registers->afe.afe_pmsn_master_control2); + writel(0x0007BFFF, &ihost->scu_registers->afe.afe_pmsn_master_control2); udelay(AFE_REGISTER_WRITE_DELAY); } /* Configure bias currents to normal */ if (is_a0()) - writel(0x00005500, &scic->scu_registers->afe.afe_bias_control); + writel(0x00005500, &ihost->scu_registers->afe.afe_bias_control); else if (is_a2()) - writel(0x00005A00, &scic->scu_registers->afe.afe_bias_control); + writel(0x00005A00, &ihost->scu_registers->afe.afe_bias_control); else if (is_b0() || is_c0()) - writel(0x00005F00, &scic->scu_registers->afe.afe_bias_control); + writel(0x00005F00, &ihost->scu_registers->afe.afe_bias_control); udelay(AFE_REGISTER_WRITE_DELAY); /* Enable PLL */ if (is_b0() || is_c0()) - writel(0x80040A08, &scic->scu_registers->afe.afe_pll_control0); + writel(0x80040A08, &ihost->scu_registers->afe.afe_pll_control0); else - writel(0x80040908, &scic->scu_registers->afe.afe_pll_control0); + writel(0x80040908, &ihost->scu_registers->afe.afe_pll_control0); udelay(AFE_REGISTER_WRITE_DELAY); /* Wait for the PLL to lock */ do { - afe_status = readl(&scic->scu_registers->afe.afe_common_block_status); + afe_status = readl(&ihost->scu_registers->afe.afe_common_block_status); udelay(AFE_REGISTER_WRITE_DELAY); } while ((afe_status & 0x00001000) == 0); if (is_a0() || is_a2()) { /* Shorten SAS SNW lock time (RxLock timer value from 76 us to 50 us) */ - writel(0x7bcc96ad, &scic->scu_registers->afe.afe_pmsn_master_control0); + writel(0x7bcc96ad, &ihost->scu_registers->afe.afe_pmsn_master_control0); udelay(AFE_REGISTER_WRITE_DELAY); } @@ -2022,26 +2004,26 @@ static void scic_sds_controller_afe_initialization(struct scic_sds_controller *s if (is_b0()) { /* Configure transmitter SSC parameters */ - writel(0x00030000, &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_tx_ssc_control); + writel(0x00030000, &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_tx_ssc_control); udelay(AFE_REGISTER_WRITE_DELAY); } else if (is_c0()) { /* Configure transmitter SSC parameters */ - writel(0x0003000, &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_tx_ssc_control); + writel(0x0003000, &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_tx_ssc_control); udelay(AFE_REGISTER_WRITE_DELAY); /* * All defaults, except the Receive Word Alignament/Comma Detect * Enable....(0xe800) */ - writel(0x00004500, &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_xcvr_control0); + writel(0x00004500, &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_xcvr_control0); udelay(AFE_REGISTER_WRITE_DELAY); } else { /* * All defaults, except the Receive Word Alignament/Comma Detect * Enable....(0xe800) */ - writel(0x00004512, &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_xcvr_control0); + writel(0x00004512, &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_xcvr_control0); udelay(AFE_REGISTER_WRITE_DELAY); - writel(0x0050100F, &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_xcvr_control1); + writel(0x0050100F, &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_xcvr_control1); udelay(AFE_REGISTER_WRITE_DELAY); } @@ -2049,106 +2031,105 @@ static void scic_sds_controller_afe_initialization(struct scic_sds_controller *s * Power up TX and RX out from power down (PWRDNTX and PWRDNRX) * & increase TX int & ext bias 20%....(0xe85c) */ if (is_a0()) - writel(0x000003D4, &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_channel_control); + writel(0x000003D4, &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_channel_control); else if (is_a2()) - writel(0x000003F0, &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_channel_control); + writel(0x000003F0, &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_channel_control); else if (is_b0()) { /* Power down TX and RX (PWRDNTX and PWRDNRX) */ - writel(0x000003D7, &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_channel_control); + writel(0x000003D7, &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_channel_control); udelay(AFE_REGISTER_WRITE_DELAY); /* * Power up TX and RX out from power down (PWRDNTX and PWRDNRX) * & increase TX int & ext bias 20%....(0xe85c) */ - writel(0x000003D4, &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_channel_control); + writel(0x000003D4, &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_channel_control); } else { - writel(0x000001E7, &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_channel_control); + writel(0x000001E7, &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_channel_control); udelay(AFE_REGISTER_WRITE_DELAY); /* * Power up TX and RX out from power down (PWRDNTX and PWRDNRX) * & increase TX int & ext bias 20%....(0xe85c) */ - writel(0x000001E4, &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_channel_control); + writel(0x000001E4, &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_channel_control); } udelay(AFE_REGISTER_WRITE_DELAY); if (is_a0() || is_a2()) { /* Enable TX equalization (0xe824) */ - writel(0x00040000, &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_tx_control); + writel(0x00040000, &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_tx_control); udelay(AFE_REGISTER_WRITE_DELAY); } /* * RDPI=0x0(RX Power On), RXOOBDETPDNC=0x0, TPD=0x0(TX Power On), * RDD=0x0(RX Detect Enabled) ....(0xe800) */ - writel(0x00004100, &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_xcvr_control0); + writel(0x00004100, &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_xcvr_control0); udelay(AFE_REGISTER_WRITE_DELAY); /* Leave DFE/FFE on */ if (is_a0()) - writel(0x3F09983F, &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_rx_ssc_control0); + writel(0x3F09983F, &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_rx_ssc_control0); else if (is_a2()) - writel(0x3F11103F, &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_rx_ssc_control0); + writel(0x3F11103F, &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_rx_ssc_control0); else if (is_b0()) { - writel(0x3F11103F, &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_rx_ssc_control0); + writel(0x3F11103F, &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_rx_ssc_control0); udelay(AFE_REGISTER_WRITE_DELAY); /* Enable TX equalization (0xe824) */ - writel(0x00040000, &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_tx_control); + writel(0x00040000, &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_tx_control); } else { - writel(0x0140DF0F, &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_rx_ssc_control1); + writel(0x0140DF0F, &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_rx_ssc_control1); udelay(AFE_REGISTER_WRITE_DELAY); - writel(0x3F6F103F, &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_rx_ssc_control0); + writel(0x3F6F103F, &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_rx_ssc_control0); udelay(AFE_REGISTER_WRITE_DELAY); /* Enable TX equalization (0xe824) */ - writel(0x00040000, &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_tx_control); + writel(0x00040000, &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_tx_control); } udelay(AFE_REGISTER_WRITE_DELAY); writel(oem_phy->afe_tx_amp_control0, - &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_tx_amp_control0); + &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_tx_amp_control0); udelay(AFE_REGISTER_WRITE_DELAY); writel(oem_phy->afe_tx_amp_control1, - &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_tx_amp_control1); + &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_tx_amp_control1); udelay(AFE_REGISTER_WRITE_DELAY); writel(oem_phy->afe_tx_amp_control2, - &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_tx_amp_control2); + &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_tx_amp_control2); udelay(AFE_REGISTER_WRITE_DELAY); writel(oem_phy->afe_tx_amp_control3, - &scic->scu_registers->afe.scu_afe_xcvr[phy_id].afe_tx_amp_control3); + &ihost->scu_registers->afe.scu_afe_xcvr[phy_id].afe_tx_amp_control3); udelay(AFE_REGISTER_WRITE_DELAY); } /* Transfer control to the PEs */ - writel(0x00010f00, &scic->scu_registers->afe.afe_dfx_master_control0); + writel(0x00010f00, &ihost->scu_registers->afe.afe_dfx_master_control0); udelay(AFE_REGISTER_WRITE_DELAY); } -static void scic_sds_controller_initialize_power_control(struct scic_sds_controller *scic) +static void scic_sds_controller_initialize_power_control(struct isci_host *ihost) { - sci_init_timer(&scic->power_control.timer, power_control_timeout); + sci_init_timer(&ihost->power_control.timer, power_control_timeout); - memset(scic->power_control.requesters, 0, - sizeof(scic->power_control.requesters)); + memset(ihost->power_control.requesters, 0, + sizeof(ihost->power_control.requesters)); - scic->power_control.phys_waiting = 0; - scic->power_control.phys_granted_power = 0; + ihost->power_control.phys_waiting = 0; + ihost->power_control.phys_granted_power = 0; } -static enum sci_status scic_controller_initialize(struct scic_sds_controller *scic) +static enum sci_status scic_controller_initialize(struct isci_host *ihost) { - struct sci_base_state_machine *sm = &scic->sm; - struct isci_host *ihost = scic_to_ihost(scic); + struct sci_base_state_machine *sm = &ihost->sm; enum sci_status result = SCI_FAILURE; unsigned long i, state, val; - if (scic->sm.current_state_id != SCIC_RESET) { - dev_warn(scic_to_dev(scic), + if (ihost->sm.current_state_id != SCIC_RESET) { + dev_warn(&ihost->pdev->dev, "SCIC Controller initialize operation requested " "in invalid state\n"); return SCI_FAILURE_INVALID_STATE; @@ -2156,23 +2137,23 @@ static enum sci_status scic_controller_initialize(struct scic_sds_controller *sc sci_change_state(sm, SCIC_INITIALIZING); - sci_init_timer(&scic->phy_timer, phy_startup_timeout); + sci_init_timer(&ihost->phy_timer, phy_startup_timeout); - scic->next_phy_to_start = 0; - scic->phy_startup_timer_pending = false; + ihost->next_phy_to_start = 0; + ihost->phy_startup_timer_pending = false; - scic_sds_controller_initialize_power_control(scic); + scic_sds_controller_initialize_power_control(ihost); /* * There is nothing to do here for B0 since we do not have to * program the AFE registers. * / @todo The AFE settings are supposed to be correct for the B0 but * / presently they seem to be wrong. */ - scic_sds_controller_afe_initialization(scic); + scic_sds_controller_afe_initialization(ihost); /* Take the hardware out of reset */ - writel(0, &scic->smu_registers->soft_reset_control); + writel(0, &ihost->smu_registers->soft_reset_control); /* * / @todo Provide meaningfull error code for hardware failure @@ -2182,7 +2163,7 @@ static enum sci_status scic_controller_initialize(struct scic_sds_controller *sc /* Loop until the hardware reports success */ udelay(SCU_CONTEXT_RAM_INIT_STALL_TIME); - status = readl(&scic->smu_registers->control_status); + status = readl(&ihost->smu_registers->control_status); if ((status & SCU_RAM_INIT_COMPLETED) == SCU_RAM_INIT_COMPLETED) break; @@ -2193,32 +2174,32 @@ static enum sci_status scic_controller_initialize(struct scic_sds_controller *sc /* * Determine what are the actaul device capacities that the * hardware will support */ - val = readl(&scic->smu_registers->device_context_capacity); + val = readl(&ihost->smu_registers->device_context_capacity); /* Record the smaller of the two capacity values */ - scic->logical_port_entries = min(smu_max_ports(val), SCI_MAX_PORTS); - scic->task_context_entries = min(smu_max_task_contexts(val), SCI_MAX_IO_REQUESTS); - scic->remote_node_entries = min(smu_max_rncs(val), SCI_MAX_REMOTE_DEVICES); + ihost->logical_port_entries = min(smu_max_ports(val), SCI_MAX_PORTS); + ihost->task_context_entries = min(smu_max_task_contexts(val), SCI_MAX_IO_REQUESTS); + ihost->remote_node_entries = min(smu_max_rncs(val), SCI_MAX_REMOTE_DEVICES); /* * Make all PEs that are unassigned match up with the * logical ports */ - for (i = 0; i < scic->logical_port_entries; i++) { + for (i = 0; i < ihost->logical_port_entries; i++) { struct scu_port_task_scheduler_group_registers __iomem - *ptsg = &scic->scu_registers->peg0.ptsg; + *ptsg = &ihost->scu_registers->peg0.ptsg; writel(i, &ptsg->protocol_engine[i]); } /* Initialize hardware PCI Relaxed ordering in DMA engines */ - val = readl(&scic->scu_registers->sdma.pdma_configuration); + val = readl(&ihost->scu_registers->sdma.pdma_configuration); val |= SCU_PDMACR_GEN_BIT(PCI_RELAXED_ORDERING_ENABLE); - writel(val, &scic->scu_registers->sdma.pdma_configuration); + writel(val, &ihost->scu_registers->sdma.pdma_configuration); - val = readl(&scic->scu_registers->sdma.cdma_configuration); + val = readl(&ihost->scu_registers->sdma.cdma_configuration); val |= SCU_CDMACR_GEN_BIT(PCI_RELAXED_ORDERING_ENABLE); - writel(val, &scic->scu_registers->sdma.cdma_configuration); + writel(val, &ihost->scu_registers->sdma.cdma_configuration); /* * Initialize the PHYs before the PORTs because the PHY registers @@ -2226,23 +2207,23 @@ static enum sci_status scic_controller_initialize(struct scic_sds_controller *sc */ for (i = 0; i < SCI_MAX_PHYS; i++) { result = scic_sds_phy_initialize(&ihost->phys[i], - &scic->scu_registers->peg0.pe[i].tl, - &scic->scu_registers->peg0.pe[i].ll); + &ihost->scu_registers->peg0.pe[i].tl, + &ihost->scu_registers->peg0.pe[i].ll); if (result != SCI_SUCCESS) goto out; } - for (i = 0; i < scic->logical_port_entries; i++) { + for (i = 0; i < ihost->logical_port_entries; i++) { result = scic_sds_port_initialize(&ihost->ports[i], - &scic->scu_registers->peg0.ptsg.port[i], - &scic->scu_registers->peg0.ptsg.protocol_engine, - &scic->scu_registers->peg0.viit[i]); + &ihost->scu_registers->peg0.ptsg.port[i], + &ihost->scu_registers->peg0.ptsg.protocol_engine, + &ihost->scu_registers->peg0.viit[i]); if (result != SCI_SUCCESS) goto out; } - result = scic_sds_port_configuration_agent_initialize(scic, &scic->port_agent); + result = scic_sds_port_configuration_agent_initialize(ihost, &ihost->port_agent); out: /* Advance the controller state machine */ @@ -2256,10 +2237,10 @@ static enum sci_status scic_controller_initialize(struct scic_sds_controller *sc } static enum sci_status scic_user_parameters_set( - struct scic_sds_controller *scic, + struct isci_host *ihost, union scic_user_parameters *scic_parms) { - u32 state = scic->sm.current_state_id; + u32 state = ihost->sm.current_state_id; if (state == SCIC_RESET || state == SCIC_INITIALIZING || @@ -2301,7 +2282,7 @@ static enum sci_status scic_user_parameters_set( (scic_parms->sds1.no_outbound_task_timeout == 0)) return SCI_FAILURE_INVALID_PARAMETER_VALUE; - memcpy(&scic->user_parameters, scic_parms, sizeof(*scic_parms)); + memcpy(&ihost->user_parameters, scic_parms, sizeof(*scic_parms)); return SCI_SUCCESS; } @@ -2309,40 +2290,40 @@ static enum sci_status scic_user_parameters_set( return SCI_FAILURE_INVALID_STATE; } -static int scic_controller_mem_init(struct scic_sds_controller *scic) +static int scic_controller_mem_init(struct isci_host *ihost) { - struct device *dev = scic_to_dev(scic); + struct device *dev = &ihost->pdev->dev; dma_addr_t dma; size_t size; int err; size = SCU_MAX_COMPLETION_QUEUE_ENTRIES * sizeof(u32); - scic->completion_queue = dmam_alloc_coherent(dev, size, &dma, GFP_KERNEL); - if (!scic->completion_queue) + ihost->completion_queue = dmam_alloc_coherent(dev, size, &dma, GFP_KERNEL); + if (!ihost->completion_queue) return -ENOMEM; - writel(lower_32_bits(dma), &scic->smu_registers->completion_queue_lower); - writel(upper_32_bits(dma), &scic->smu_registers->completion_queue_upper); + writel(lower_32_bits(dma), &ihost->smu_registers->completion_queue_lower); + writel(upper_32_bits(dma), &ihost->smu_registers->completion_queue_upper); - size = scic->remote_node_entries * sizeof(union scu_remote_node_context); - scic->remote_node_context_table = dmam_alloc_coherent(dev, size, &dma, + size = ihost->remote_node_entries * sizeof(union scu_remote_node_context); + ihost->remote_node_context_table = dmam_alloc_coherent(dev, size, &dma, GFP_KERNEL); - if (!scic->remote_node_context_table) + if (!ihost->remote_node_context_table) return -ENOMEM; - writel(lower_32_bits(dma), &scic->smu_registers->remote_node_context_lower); - writel(upper_32_bits(dma), &scic->smu_registers->remote_node_context_upper); + writel(lower_32_bits(dma), &ihost->smu_registers->remote_node_context_lower); + writel(upper_32_bits(dma), &ihost->smu_registers->remote_node_context_upper); - size = scic->task_context_entries * sizeof(struct scu_task_context), - scic->task_context_table = dmam_alloc_coherent(dev, size, &dma, GFP_KERNEL); - if (!scic->task_context_table) + size = ihost->task_context_entries * sizeof(struct scu_task_context), + ihost->task_context_table = dmam_alloc_coherent(dev, size, &dma, GFP_KERNEL); + if (!ihost->task_context_table) return -ENOMEM; - scic->task_context_dma = dma; - writel(lower_32_bits(dma), &scic->smu_registers->host_task_table_lower); - writel(upper_32_bits(dma), &scic->smu_registers->host_task_table_upper); + ihost->task_context_dma = dma; + writel(lower_32_bits(dma), &ihost->smu_registers->host_task_table_lower); + writel(upper_32_bits(dma), &ihost->smu_registers->host_task_table_upper); - err = scic_sds_unsolicited_frame_control_construct(scic); + err = scic_sds_unsolicited_frame_control_construct(ihost); if (err) return err; @@ -2350,112 +2331,112 @@ static int scic_controller_mem_init(struct scic_sds_controller *scic) * Inform the silicon as to the location of the UF headers and * address table. */ - writel(lower_32_bits(scic->uf_control.headers.physical_address), - &scic->scu_registers->sdma.uf_header_base_address_lower); - writel(upper_32_bits(scic->uf_control.headers.physical_address), - &scic->scu_registers->sdma.uf_header_base_address_upper); + writel(lower_32_bits(ihost->uf_control.headers.physical_address), + &ihost->scu_registers->sdma.uf_header_base_address_lower); + writel(upper_32_bits(ihost->uf_control.headers.physical_address), + &ihost->scu_registers->sdma.uf_header_base_address_upper); - writel(lower_32_bits(scic->uf_control.address_table.physical_address), - &scic->scu_registers->sdma.uf_address_table_lower); - writel(upper_32_bits(scic->uf_control.address_table.physical_address), - &scic->scu_registers->sdma.uf_address_table_upper); + writel(lower_32_bits(ihost->uf_control.address_table.physical_address), + &ihost->scu_registers->sdma.uf_address_table_lower); + writel(upper_32_bits(ihost->uf_control.address_table.physical_address), + &ihost->scu_registers->sdma.uf_address_table_upper); return 0; } -int isci_host_init(struct isci_host *isci_host) +int isci_host_init(struct isci_host *ihost) { int err = 0, i; enum sci_status status; union scic_oem_parameters oem; union scic_user_parameters scic_user_params; - struct isci_pci_info *pci_info = to_pci_info(isci_host->pdev); + struct isci_pci_info *pci_info = to_pci_info(ihost->pdev); - spin_lock_init(&isci_host->state_lock); - spin_lock_init(&isci_host->scic_lock); - init_waitqueue_head(&isci_host->eventq); + spin_lock_init(&ihost->state_lock); + spin_lock_init(&ihost->scic_lock); + init_waitqueue_head(&ihost->eventq); - isci_host_change_state(isci_host, isci_starting); + isci_host_change_state(ihost, isci_starting); - status = scic_controller_construct(&isci_host->sci, scu_base(isci_host), - smu_base(isci_host)); + status = scic_controller_construct(ihost, scu_base(ihost), + smu_base(ihost)); if (status != SCI_SUCCESS) { - dev_err(&isci_host->pdev->dev, + dev_err(&ihost->pdev->dev, "%s: scic_controller_construct failed - status = %x\n", __func__, status); return -ENODEV; } - isci_host->sas_ha.dev = &isci_host->pdev->dev; - isci_host->sas_ha.lldd_ha = isci_host; + ihost->sas_ha.dev = &ihost->pdev->dev; + ihost->sas_ha.lldd_ha = ihost; /* * grab initial values stored in the controller object for OEM and USER * parameters */ - isci_user_parameters_get(isci_host, &scic_user_params); - status = scic_user_parameters_set(&isci_host->sci, + isci_user_parameters_get(ihost, &scic_user_params); + status = scic_user_parameters_set(ihost, &scic_user_params); if (status != SCI_SUCCESS) { - dev_warn(&isci_host->pdev->dev, + dev_warn(&ihost->pdev->dev, "%s: scic_user_parameters_set failed\n", __func__); return -ENODEV; } - scic_oem_parameters_get(&isci_host->sci, &oem); + scic_oem_parameters_get(ihost, &oem); /* grab any OEM parameters specified in orom */ if (pci_info->orom) { status = isci_parse_oem_parameters(&oem, pci_info->orom, - isci_host->id); + ihost->id); if (status != SCI_SUCCESS) { - dev_warn(&isci_host->pdev->dev, + dev_warn(&ihost->pdev->dev, "parsing firmware oem parameters failed\n"); return -EINVAL; } } - status = scic_oem_parameters_set(&isci_host->sci, &oem); + status = scic_oem_parameters_set(ihost, &oem); if (status != SCI_SUCCESS) { - dev_warn(&isci_host->pdev->dev, + dev_warn(&ihost->pdev->dev, "%s: scic_oem_parameters_set failed\n", __func__); return -ENODEV; } - tasklet_init(&isci_host->completion_tasklet, - isci_host_completion_routine, (unsigned long)isci_host); + tasklet_init(&ihost->completion_tasklet, + isci_host_completion_routine, (unsigned long)ihost); - INIT_LIST_HEAD(&isci_host->requests_to_complete); - INIT_LIST_HEAD(&isci_host->requests_to_errorback); + INIT_LIST_HEAD(&ihost->requests_to_complete); + INIT_LIST_HEAD(&ihost->requests_to_errorback); - spin_lock_irq(&isci_host->scic_lock); - status = scic_controller_initialize(&isci_host->sci); - spin_unlock_irq(&isci_host->scic_lock); + spin_lock_irq(&ihost->scic_lock); + status = scic_controller_initialize(ihost); + spin_unlock_irq(&ihost->scic_lock); if (status != SCI_SUCCESS) { - dev_warn(&isci_host->pdev->dev, + dev_warn(&ihost->pdev->dev, "%s: scic_controller_initialize failed -" " status = 0x%x\n", __func__, status); return -ENODEV; } - err = scic_controller_mem_init(&isci_host->sci); + err = scic_controller_mem_init(ihost); if (err) return err; for (i = 0; i < SCI_MAX_PORTS; i++) - isci_port_init(&isci_host->ports[i], isci_host, i); + isci_port_init(&ihost->ports[i], ihost, i); for (i = 0; i < SCI_MAX_PHYS; i++) - isci_phy_init(&isci_host->phys[i], isci_host, i); + isci_phy_init(&ihost->phys[i], ihost, i); for (i = 0; i < SCI_MAX_REMOTE_DEVICES; i++) { - struct isci_remote_device *idev = &isci_host->devices[i]; + struct isci_remote_device *idev = &ihost->devices[i]; INIT_LIST_HEAD(&idev->reqs_in_process); INIT_LIST_HEAD(&idev->node); @@ -2465,63 +2446,62 @@ int isci_host_init(struct isci_host *isci_host) struct isci_request *ireq; dma_addr_t dma; - ireq = dmam_alloc_coherent(&isci_host->pdev->dev, + ireq = dmam_alloc_coherent(&ihost->pdev->dev, sizeof(struct isci_request), &dma, GFP_KERNEL); if (!ireq) return -ENOMEM; - ireq->tc = &isci_host->sci.task_context_table[i]; - ireq->owning_controller = &isci_host->sci; + ireq->tc = &ihost->task_context_table[i]; + ireq->owning_controller = ihost; spin_lock_init(&ireq->state_lock); ireq->request_daddr = dma; - ireq->isci_host = isci_host; - - isci_host->reqs[i] = ireq; + ireq->isci_host = ihost; + ihost->reqs[i] = ireq; } return 0; } -void scic_sds_controller_link_up(struct scic_sds_controller *scic, +void scic_sds_controller_link_up(struct isci_host *ihost, struct isci_port *iport, struct isci_phy *iphy) { - switch (scic->sm.current_state_id) { + switch (ihost->sm.current_state_id) { case SCIC_STARTING: - sci_del_timer(&scic->phy_timer); - scic->phy_startup_timer_pending = false; - scic->port_agent.link_up_handler(scic, &scic->port_agent, + sci_del_timer(&ihost->phy_timer); + ihost->phy_startup_timer_pending = false; + ihost->port_agent.link_up_handler(ihost, &ihost->port_agent, iport, iphy); - scic_sds_controller_start_next_phy(scic); + scic_sds_controller_start_next_phy(ihost); break; case SCIC_READY: - scic->port_agent.link_up_handler(scic, &scic->port_agent, + ihost->port_agent.link_up_handler(ihost, &ihost->port_agent, iport, iphy); break; default: - dev_dbg(scic_to_dev(scic), + dev_dbg(&ihost->pdev->dev, "%s: SCIC Controller linkup event from phy %d in " "unexpected state %d\n", __func__, iphy->phy_index, - scic->sm.current_state_id); + ihost->sm.current_state_id); } } -void scic_sds_controller_link_down(struct scic_sds_controller *scic, +void scic_sds_controller_link_down(struct isci_host *ihost, struct isci_port *iport, struct isci_phy *iphy) { - switch (scic->sm.current_state_id) { + switch (ihost->sm.current_state_id) { case SCIC_STARTING: case SCIC_READY: - scic->port_agent.link_down_handler(scic, &scic->port_agent, + ihost->port_agent.link_down_handler(ihost, &ihost->port_agent, iport, iphy); break; default: - dev_dbg(scic_to_dev(scic), + dev_dbg(&ihost->pdev->dev, "%s: SCIC Controller linkdown event from phy %d in " "unexpected state %d\n", __func__, iphy->phy_index, - scic->sm.current_state_id); + ihost->sm.current_state_id); } } @@ -2530,14 +2510,13 @@ void scic_sds_controller_link_down(struct scic_sds_controller *scic, * controller are still in the stopping state. * */ -static bool scic_sds_controller_has_remote_devices_stopping( - struct scic_sds_controller *controller) +static bool scic_sds_controller_has_remote_devices_stopping(struct isci_host *ihost) { u32 index; - for (index = 0; index < controller->remote_node_entries; index++) { - if ((controller->device_table[index] != NULL) && - (controller->device_table[index]->sm.current_state_id == SCI_DEV_STOPPING)) + for (index = 0; index < ihost->remote_node_entries; index++) { + if ((ihost->device_table[index] != NULL) && + (ihost->device_table[index]->sm.current_state_id == SCI_DEV_STOPPING)) return true; } @@ -2548,20 +2527,20 @@ static bool scic_sds_controller_has_remote_devices_stopping( * This method is called by the remote device to inform the controller * object that the remote device has stopped. */ -void scic_sds_controller_remote_device_stopped(struct scic_sds_controller *scic, +void scic_sds_controller_remote_device_stopped(struct isci_host *ihost, struct isci_remote_device *idev) { - if (scic->sm.current_state_id != SCIC_STOPPING) { - dev_dbg(scic_to_dev(scic), + if (ihost->sm.current_state_id != SCIC_STOPPING) { + dev_dbg(&ihost->pdev->dev, "SCIC Controller 0x%p remote device stopped event " "from device 0x%p in unexpected state %d\n", - scic, idev, - scic->sm.current_state_id); + ihost, idev, + ihost->sm.current_state_id); return; } - if (!scic_sds_controller_has_remote_devices_stopping(scic)) { - sci_change_state(&scic->sm, SCIC_STOPPED); + if (!scic_sds_controller_has_remote_devices_stopping(ihost)) { + sci_change_state(&ihost->sm, SCIC_STOPPED); } } @@ -2573,32 +2552,32 @@ void scic_sds_controller_remote_device_stopped(struct scic_sds_controller *scic, * */ void scic_sds_controller_post_request( - struct scic_sds_controller *scic, + struct isci_host *ihost, u32 request) { - dev_dbg(scic_to_dev(scic), + dev_dbg(&ihost->pdev->dev, "%s: SCIC Controller 0x%p post request 0x%08x\n", __func__, - scic, + ihost, request); - writel(request, &scic->smu_registers->post_context_port); + writel(request, &ihost->smu_registers->post_context_port); } -struct isci_request *scic_request_by_tag(struct scic_sds_controller *scic, u16 io_tag) +struct isci_request *scic_request_by_tag(struct isci_host *ihost, u16 io_tag) { u16 task_index; u16 task_sequence; task_index = ISCI_TAG_TCI(io_tag); - if (task_index < scic->task_context_entries) { - struct isci_request *ireq = scic_to_ihost(scic)->reqs[task_index]; + if (task_index < ihost->task_context_entries) { + struct isci_request *ireq = ihost->reqs[task_index]; if (test_bit(IREQ_ACTIVE, &ireq->flags)) { task_sequence = ISCI_TAG_SEQ(io_tag); - if (task_sequence == scic->io_request_sequence[task_index]) + if (task_sequence == ihost->io_request_sequence[task_index]) return ireq; } } @@ -2621,7 +2600,7 @@ struct isci_request *scic_request_by_tag(struct scic_sds_controller *scic, u16 i * node index available. */ enum sci_status scic_sds_controller_allocate_remote_node_context( - struct scic_sds_controller *scic, + struct isci_host *ihost, struct isci_remote_device *idev, u16 *node_id) { @@ -2629,11 +2608,11 @@ enum sci_status scic_sds_controller_allocate_remote_node_context( u32 remote_node_count = scic_sds_remote_device_node_count(idev); node_index = scic_sds_remote_node_table_allocate_remote_node( - &scic->available_remote_nodes, remote_node_count + &ihost->available_remote_nodes, remote_node_count ); if (node_index != SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) { - scic->device_table[node_index] = idev; + ihost->device_table[node_index] = idev; *node_id = node_index; @@ -2653,17 +2632,17 @@ enum sci_status scic_sds_controller_allocate_remote_node_context( * */ void scic_sds_controller_free_remote_node_context( - struct scic_sds_controller *scic, + struct isci_host *ihost, struct isci_remote_device *idev, u16 node_id) { u32 remote_node_count = scic_sds_remote_device_node_count(idev); - if (scic->device_table[node_id] == idev) { - scic->device_table[node_id] = NULL; + if (ihost->device_table[node_id] == idev) { + ihost->device_table[node_id] = NULL; scic_sds_remote_node_table_release_remote_node_index( - &scic->available_remote_nodes, remote_node_count, node_id + &ihost->available_remote_nodes, remote_node_count, node_id ); } } @@ -2677,14 +2656,14 @@ void scic_sds_controller_free_remote_node_context( * union scu_remote_node_context* */ union scu_remote_node_context *scic_sds_controller_get_remote_node_context_buffer( - struct scic_sds_controller *scic, + struct isci_host *ihost, u16 node_id ) { if ( - (node_id < scic->remote_node_entries) - && (scic->device_table[node_id] != NULL) + (node_id < ihost->remote_node_entries) + && (ihost->device_table[node_id] != NULL) ) { - return &scic->remote_node_context_table[node_id]; + return &ihost->remote_node_context_table[node_id]; } return NULL; @@ -2722,13 +2701,13 @@ void scic_sds_controller_copy_sata_response( * */ void scic_sds_controller_release_frame( - struct scic_sds_controller *scic, + struct isci_host *ihost, u32 frame_index) { if (scic_sds_unsolicited_frame_control_release_frame( - &scic->uf_control, frame_index) == true) - writel(scic->uf_control.get, - &scic->scu_registers->sdma.unsolicited_frame_get_pointer); + &ihost->uf_control, frame_index) == true) + writel(ihost->uf_control.get, + &ihost->scu_registers->sdma.unsolicited_frame_get_pointer); } void isci_tci_free(struct isci_host *ihost, u16 tci) @@ -2757,7 +2736,7 @@ u16 isci_alloc_tag(struct isci_host *ihost) { if (isci_tci_space(ihost)) { u16 tci = isci_tci_alloc(ihost); - u8 seq = ihost->sci.io_request_sequence[tci]; + u8 seq = ihost->io_request_sequence[tci]; return ISCI_TAG(seq, tci); } @@ -2767,7 +2746,6 @@ u16 isci_alloc_tag(struct isci_host *ihost) enum sci_status isci_free_tag(struct isci_host *ihost, u16 io_tag) { - struct scic_sds_controller *scic = &ihost->sci; u16 tci = ISCI_TAG_TCI(io_tag); u16 seq = ISCI_TAG_SEQ(io_tag); @@ -2775,8 +2753,8 @@ enum sci_status isci_free_tag(struct isci_host *ihost, u16 io_tag) if (isci_tci_active(ihost) == 0) return SCI_FAILURE_INVALID_IO_TAG; - if (seq == scic->io_request_sequence[tci]) { - scic->io_request_sequence[tci] = (seq+1) & (SCI_MAX_SEQ-1); + if (seq == ihost->io_request_sequence[tci]) { + ihost->io_request_sequence[tci] = (seq+1) & (SCI_MAX_SEQ-1); isci_tci_free(ihost, tci); @@ -2797,23 +2775,23 @@ enum sci_status isci_free_tag(struct isci_host *ihost, u16 io_tag) * @io_tag: This parameter specifies a previously allocated IO tag that the * user desires to be utilized for this request. */ -enum sci_status scic_controller_start_io(struct scic_sds_controller *scic, +enum sci_status scic_controller_start_io(struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq) { enum sci_status status; - if (scic->sm.current_state_id != SCIC_READY) { - dev_warn(scic_to_dev(scic), "invalid state to start I/O"); + if (ihost->sm.current_state_id != SCIC_READY) { + dev_warn(&ihost->pdev->dev, "invalid state to start I/O"); return SCI_FAILURE_INVALID_STATE; } - status = scic_sds_remote_device_start_io(scic, idev, ireq); + status = scic_sds_remote_device_start_io(ihost, idev, ireq); if (status != SCI_SUCCESS) return status; set_bit(IREQ_ACTIVE, &ireq->flags); - scic_sds_controller_post_request(scic, scic_sds_request_get_post_context(ireq)); + scic_sds_controller_post_request(ihost, scic_sds_request_get_post_context(ireq)); return SCI_SUCCESS; } @@ -2834,14 +2812,14 @@ enum sci_status scic_controller_start_io(struct scic_sds_controller *scic, * for the request. Determine the failure situations and return values. */ enum sci_status scic_controller_terminate_request( - struct scic_sds_controller *scic, + struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq) { enum sci_status status; - if (scic->sm.current_state_id != SCIC_READY) { - dev_warn(scic_to_dev(scic), + if (ihost->sm.current_state_id != SCIC_READY) { + dev_warn(&ihost->pdev->dev, "invalid state to terminate request\n"); return SCI_FAILURE_INVALID_STATE; } @@ -2854,7 +2832,7 @@ enum sci_status scic_controller_terminate_request( * Utilize the original post context command and or in the POST_TC_ABORT * request sub-type. */ - scic_sds_controller_post_request(scic, + scic_sds_controller_post_request(ihost, scic_sds_request_get_post_context(ireq) | SCU_CONTEXT_COMMAND_REQUEST_POST_TC_ABORT); return SCI_SUCCESS; @@ -2872,19 +2850,19 @@ enum sci_status scic_controller_terminate_request( * @io_request: the handle to the io request object to complete. */ enum sci_status scic_controller_complete_io( - struct scic_sds_controller *scic, + struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq) { enum sci_status status; u16 index; - switch (scic->sm.current_state_id) { + switch (ihost->sm.current_state_id) { case SCIC_STOPPING: /* XXX: Implement this function */ return SCI_FAILURE; case SCIC_READY: - status = scic_sds_remote_device_complete_io(scic, idev, ireq); + status = scic_sds_remote_device_complete_io(ihost, idev, ireq); if (status != SCI_SUCCESS) return status; @@ -2892,7 +2870,7 @@ enum sci_status scic_controller_complete_io( clear_bit(IREQ_ACTIVE, &ireq->flags); return SCI_SUCCESS; default: - dev_warn(scic_to_dev(scic), "invalid state to complete I/O"); + dev_warn(&ihost->pdev->dev, "invalid state to complete I/O"); return SCI_FAILURE_INVALID_STATE; } @@ -2900,15 +2878,15 @@ enum sci_status scic_controller_complete_io( enum sci_status scic_controller_continue_io(struct isci_request *ireq) { - struct scic_sds_controller *scic = ireq->owning_controller; + struct isci_host *ihost = ireq->owning_controller; - if (scic->sm.current_state_id != SCIC_READY) { - dev_warn(scic_to_dev(scic), "invalid state to continue I/O"); + if (ihost->sm.current_state_id != SCIC_READY) { + dev_warn(&ihost->pdev->dev, "invalid state to continue I/O"); return SCI_FAILURE_INVALID_STATE; } set_bit(IREQ_ACTIVE, &ireq->flags); - scic_sds_controller_post_request(scic, scic_sds_request_get_post_context(ireq)); + scic_sds_controller_post_request(ihost, scic_sds_request_get_post_context(ireq)); return SCI_SUCCESS; } @@ -2922,21 +2900,21 @@ enum sci_status scic_controller_continue_io(struct isci_request *ireq) * @task_request: the handle to the task request object to start. */ enum sci_task_status scic_controller_start_task( - struct scic_sds_controller *scic, + struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq) { enum sci_status status; - if (scic->sm.current_state_id != SCIC_READY) { - dev_warn(scic_to_dev(scic), + if (ihost->sm.current_state_id != SCIC_READY) { + dev_warn(&ihost->pdev->dev, "%s: SCIC Controller starting task from invalid " "state\n", __func__); return SCI_TASK_FAILURE_INVALID_STATE; } - status = scic_sds_remote_device_start_task(scic, idev, ireq); + status = scic_sds_remote_device_start_task(ihost, idev, ireq); switch (status) { case SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS: set_bit(IREQ_ACTIVE, &ireq->flags); @@ -2950,7 +2928,7 @@ enum sci_task_status scic_controller_start_task( case SCI_SUCCESS: set_bit(IREQ_ACTIVE, &ireq->flags); - scic_sds_controller_post_request(scic, + scic_sds_controller_post_request(ihost, scic_sds_request_get_post_context(ireq)); break; default: diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index ca2e3b0ee0d..013f672a8fd 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -106,7 +106,7 @@ struct scic_power_control { }; struct scic_sds_port_configuration_agent; -typedef void (*port_config_fn)(struct scic_sds_controller *, +typedef void (*port_config_fn)(struct isci_host *, struct scic_sds_port_configuration_agent *, struct isci_port *, struct isci_phy *); @@ -124,171 +124,66 @@ struct scic_sds_port_configuration_agent { }; /** - * struct scic_sds_controller - - * - * This structure represents the SCU controller object. + * isci_host - primary host/controller object + * @timer: timeout start/stop operations + * @device_table: rni (hw remote node index) to remote device lookup table + * @available_remote_nodes: rni allocator + * @power_control: manage device spin up + * @io_request_sequence: generation number for tci's (task contexts) + * @task_context_table: hw task context table + * @remote_node_context_table: hw remote node context table + * @completion_queue: hw-producer driver-consumer communication ring + * @completion_queue_get: tracks the driver 'head' of the ring to notify hw + * @logical_port_entries: min({driver|silicon}-supported-port-count) + * @remote_node_entries: min({driver|silicon}-supported-node-count) + * @task_context_entries: min({driver|silicon}-supported-task-count) + * @phy_timer: phy startup timer + * @invalid_phy_mask: if an invalid_link_up notification is reported a bit for + * the phy index is set so further notifications are not + * made. Once the phy reports link up and is made part of a + * port then this bit is cleared. + */ -struct scic_sds_controller { - /** - * This field contains the information for the base controller state - * machine. - */ +struct isci_host { struct sci_base_state_machine sm; - - /** - * Timer for controller start/stop operations. - */ + /* XXX can we time this externally */ struct sci_timer timer; - - /** - * This field contains the user parameters to be utilized for this - * core controller object. - */ + /* XXX drop reference module params directly */ union scic_user_parameters user_parameters; - - /** - * This field contains the OEM parameters to be utilized for this - * core controller object. - */ + /* XXX no need to be a union */ union scic_oem_parameters oem_parameters; - - /** - * This field contains the port configuration agent for this controller. - */ struct scic_sds_port_configuration_agent port_agent; - - /** - * This field is the array of device objects that are currently constructed - * for this controller object. This table is used as a fast lookup of device - * objects that need to handle device completion notifications from the - * hardware. The table is RNi based. - */ struct isci_remote_device *device_table[SCI_MAX_REMOTE_DEVICES]; - - /** - * This field is the free RNi data structure - */ struct scic_remote_node_table available_remote_nodes; - - /** - * This filed is the struct scic_power_control data used to controll when direct - * attached devices can consume power. - */ struct scic_power_control power_control; - - /* sequence number per tci */ u8 io_request_sequence[SCI_MAX_IO_REQUESTS]; - - /** - * This field is a pointer to the memory allocated by the driver for the task - * context table. This data is shared between the hardware and software. - */ struct scu_task_context *task_context_table; dma_addr_t task_context_dma; - - /** - * This field is a pointer to the memory allocated by the driver for the - * remote node context table. This table is shared between the hardware and - * software. - */ union scu_remote_node_context *remote_node_context_table; - - /** - * This field is a pointer to the completion queue. This memory is - * written to by the hardware and read by the software. - */ u32 *completion_queue; - - /** - * This field is the software copy of the completion queue get pointer. The - * controller object writes this value to the hardware after processing the - * completion entries. - */ u32 completion_queue_get; - - /** - * This field is the minimum of the number of hardware supported port entries - * and the software requested port entries. - */ u32 logical_port_entries; - - /** - * This field is the minimum number of devices supported by the hardware and - * the number of devices requested by the software. - */ u32 remote_node_entries; - - /** - * This field is the minimum number of IO requests supported by the hardware - * and the number of IO requests requested by the software. - */ u32 task_context_entries; - - /** - * This object contains all of the unsolicited frame specific - * data utilized by the core controller. - */ struct scic_sds_unsolicited_frame_control uf_control; - /* Phy Startup Data */ - /** - * Timer for controller phy request startup. On controller start the - * controller will start each PHY individually in order of phy index. - */ + /* phy startup */ struct sci_timer phy_timer; - - /** - * This field is set when the phy_timer is running and is cleared when - * the phy_timer is stopped. - */ + /* XXX kill */ bool phy_startup_timer_pending; - - /** - * This field is the index of the next phy start. It is initialized to 0 and - * increments for each phy index that is started. - */ u32 next_phy_to_start; - - /** - * This field controlls the invalid link up notifications to the SCI_USER. If - * an invalid_link_up notification is reported a bit for the PHY index is set - * so further notifications are not made. Once the PHY object reports link up - * and is made part of a port then this bit for the PHY index is cleared. - */ u8 invalid_phy_mask; - /* - * This field saves the current interrupt coalescing number of the controller. - */ + /* TODO attempt dynamic interrupt coalescing scheme */ u16 interrupt_coalesce_number; - - /* - * This field saves the current interrupt coalescing timeout value in microseconds. - */ u32 interrupt_coalesce_timeout; - - /** - * This field is a pointer to the memory mapped register space for the - * struct smu_registers. - */ struct smu_registers __iomem *smu_registers; - - /** - * This field is a pointer to the memory mapped register space for the - * struct scu_registers. - */ struct scu_registers __iomem *scu_registers; -}; - -struct isci_host { - struct scic_sds_controller sci; u16 tci_head; u16 tci_tail; u16 tci_pool[SCI_MAX_IO_REQUESTS]; - union scic_oem_parameters oem_parameters; - int id; /* unique within a given pci device */ struct isci_phy phys[SCI_MAX_PHYS]; struct isci_port ports[SCI_MAX_PORTS + 1]; /* includes dummy port */ @@ -464,14 +359,6 @@ static inline struct isci_host *dev_to_ihost(struct domain_device *dev) return dev->port->ha->lldd_ha; } -static inline struct isci_host *scic_to_ihost(struct scic_sds_controller *scic) -{ - /* XXX delete after merging scic_sds_contoller and isci_host */ - struct isci_host *ihost = container_of(scic, typeof(*ihost), sci); - - return ihost; -} - /** * scic_sds_controller_get_protocol_engine_group() - * @@ -518,11 +405,6 @@ static inline int scic_sds_remote_device_node_count(struct isci_remote_device *i #define scic_sds_controller_clear_invalid_phy(controller, phy) \ ((controller)->invalid_phy_mask &= ~(1 << (phy)->phy_index)) -static inline struct device *scic_to_dev(struct scic_sds_controller *scic) -{ - return &scic_to_ihost(scic)->pdev->dev; -} - static inline struct device *sciphy_to_dev(struct isci_phy *iphy) { @@ -578,54 +460,54 @@ static inline bool is_c0(void) return isci_si_rev > ISCI_SI_REVB0; } -void scic_sds_controller_post_request(struct scic_sds_controller *scic, +void scic_sds_controller_post_request(struct isci_host *ihost, u32 request); -void scic_sds_controller_release_frame(struct scic_sds_controller *scic, +void scic_sds_controller_release_frame(struct isci_host *ihost, u32 frame_index); void scic_sds_controller_copy_sata_response(void *response_buffer, void *frame_header, void *frame_buffer); -enum sci_status scic_sds_controller_allocate_remote_node_context(struct scic_sds_controller *scic, +enum sci_status scic_sds_controller_allocate_remote_node_context(struct isci_host *ihost, struct isci_remote_device *idev, u16 *node_id); void scic_sds_controller_free_remote_node_context( - struct scic_sds_controller *scic, + struct isci_host *ihost, struct isci_remote_device *idev, u16 node_id); union scu_remote_node_context *scic_sds_controller_get_remote_node_context_buffer( - struct scic_sds_controller *scic, + struct isci_host *ihost, u16 node_id); -struct isci_request *scic_request_by_tag(struct scic_sds_controller *scic, +struct isci_request *scic_request_by_tag(struct isci_host *ihost, u16 io_tag); void scic_sds_controller_power_control_queue_insert( - struct scic_sds_controller *scic, + struct isci_host *ihost, struct isci_phy *iphy); void scic_sds_controller_power_control_queue_remove( - struct scic_sds_controller *scic, + struct isci_host *ihost, struct isci_phy *iphy); void scic_sds_controller_link_up( - struct scic_sds_controller *scic, + struct isci_host *ihost, struct isci_port *iport, struct isci_phy *iphy); void scic_sds_controller_link_down( - struct scic_sds_controller *scic, + struct isci_host *ihost, struct isci_port *iport, struct isci_phy *iphy); void scic_sds_controller_remote_device_stopped( - struct scic_sds_controller *scic, + struct isci_host *ihost, struct isci_remote_device *idev); void scic_sds_controller_copy_task_context( - struct scic_sds_controller *scic, + struct isci_host *ihost, struct isci_request *ireq); -void scic_sds_controller_register_setup(struct scic_sds_controller *scic); +void scic_sds_controller_register_setup(struct isci_host *ihost); enum sci_status scic_controller_continue_io(struct isci_request *ireq); int isci_host_scan_finished(struct Scsi_Host *, unsigned long); @@ -655,25 +537,25 @@ void isci_host_remote_device_start_complete( enum sci_status); void scic_controller_disable_interrupts( - struct scic_sds_controller *scic); + struct isci_host *ihost); enum sci_status scic_controller_start_io( - struct scic_sds_controller *scic, + struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq); enum sci_task_status scic_controller_start_task( - struct scic_sds_controller *scic, + struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq); enum sci_status scic_controller_terminate_request( - struct scic_sds_controller *scic, + struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq); enum sci_status scic_controller_complete_io( - struct scic_sds_controller *scic, + struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq); @@ -681,6 +563,6 @@ void scic_sds_port_configuration_agent_construct( struct scic_sds_port_configuration_agent *port_agent); enum sci_status scic_sds_port_configuration_agent_initialize( - struct scic_sds_controller *controller, + struct isci_host *ihost, struct scic_sds_port_configuration_agent *port_agent); #endif diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index bbfb6e56320..68ca1a4f30a 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -548,13 +548,13 @@ static int __devinit isci_pci_probe(struct pci_dev *pdev, const struct pci_devic static void __devexit isci_pci_remove(struct pci_dev *pdev) { - struct isci_host *isci_host; + struct isci_host *ihost; int i; - for_each_isci_host(i, isci_host, pdev) { - isci_unregister(isci_host); - isci_host_deinit(isci_host); - scic_controller_disable_interrupts(&isci_host->sci); + for_each_isci_host(i, ihost, pdev) { + isci_unregister(ihost); + isci_host_deinit(ihost); + scic_controller_disable_interrupts(ihost); } } diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c index fd0e9734e5d..ca96b5ad0d5 100644 --- a/drivers/scsi/isci/phy.c +++ b/drivers/scsi/isci/phy.c @@ -112,13 +112,13 @@ static enum sci_status scic_sds_phy_link_layer_initialization(struct isci_phy *iphy, struct scu_link_layer_registers __iomem *link_layer_registers) { - struct scic_sds_controller *scic = + struct isci_host *ihost = iphy->owning_port->owning_controller; int phy_idx = iphy->phy_index; struct sci_phy_user_params *phy_user = - &scic->user_parameters.sds1.phys[phy_idx]; + &ihost->user_parameters.sds1.phys[phy_idx]; struct sci_phy_oem_params *phy_oem = - &scic->oem_parameters.sds1.phys[phy_idx]; + &ihost->oem_parameters.sds1.phys[phy_idx]; u32 phy_configuration; struct scic_phy_cap phy_cap; u32 parity_check = 0; @@ -169,7 +169,7 @@ scic_sds_phy_link_layer_initialization(struct isci_phy *iphy, phy_cap.gen3_no_ssc = 1; phy_cap.gen2_no_ssc = 1; phy_cap.gen1_no_ssc = 1; - if (scic->oem_parameters.sds1.controller.do_enable_ssc == true) { + if (ihost->oem_parameters.sds1.controller.do_enable_ssc == true) { phy_cap.gen3_ssc = 1; phy_cap.gen2_ssc = 1; phy_cap.gen1_ssc = 1; @@ -216,7 +216,7 @@ scic_sds_phy_link_layer_initialization(struct isci_phy *iphy, &iphy->link_layer_registers->afe_lookup_table_control); llctl = SCU_SAS_LLCTL_GEN_VAL(NO_OUTBOUND_TASK_TIMEOUT, - (u8)scic->user_parameters.sds1.no_outbound_task_timeout); + (u8)ihost->user_parameters.sds1.no_outbound_task_timeout); switch(phy_user->max_speed_generation) { case SCIC_SDS_PARM_GEN3_SPEED: @@ -255,7 +255,7 @@ static void phy_sata_timeout(unsigned long data) { struct sci_timer *tmr = (struct sci_timer *)data; struct isci_phy *iphy = container_of(tmr, typeof(*iphy), sata_timer); - struct isci_host *ihost = scic_to_ihost(iphy->owning_port->owning_controller); + struct isci_host *ihost = iphy->owning_port->owning_controller; unsigned long flags; spin_lock_irqsave(&ihost->scic_lock, flags); @@ -890,7 +890,7 @@ enum sci_status scic_sds_phy_frame_handler(struct isci_phy *iphy, u32 frame_index) { enum scic_sds_phy_states state = iphy->sm.current_state_id; - struct scic_sds_controller *scic = iphy->owning_port->owning_controller; + struct isci_host *ihost = iphy->owning_port->owning_controller; enum sci_status result; unsigned long flags; @@ -899,7 +899,7 @@ enum sci_status scic_sds_phy_frame_handler(struct isci_phy *iphy, u32 *frame_words; struct sas_identify_frame iaf; - result = scic_sds_unsolicited_frame_control_get_header(&scic->uf_control, + result = scic_sds_unsolicited_frame_control_get_header(&ihost->uf_control, frame_index, (void **)&frame_words); @@ -933,7 +933,7 @@ enum sci_status scic_sds_phy_frame_handler(struct isci_phy *iphy, "unexpected frame id %x\n", __func__, frame_index); - scic_sds_controller_release_frame(scic, frame_index); + scic_sds_controller_release_frame(ihost, frame_index); return result; } case SCI_PHY_SUB_AWAIT_SIG_FIS_UF: { @@ -950,7 +950,7 @@ enum sci_status scic_sds_phy_frame_handler(struct isci_phy *iphy, if ((frame_header->fis_type == FIS_REGD2H) && !(frame_header->status & ATA_BUSY)) { - scic_sds_unsolicited_frame_control_get_buffer(&scic->uf_control, + scic_sds_unsolicited_frame_control_get_buffer(&ihost->uf_control, frame_index, (void **)&fis_frame_data); @@ -971,7 +971,7 @@ enum sci_status scic_sds_phy_frame_handler(struct isci_phy *iphy, __func__, frame_index); /* Regardless of the result we are done with this frame with it */ - scic_sds_controller_release_frame(scic, frame_index); + scic_sds_controller_release_frame(ihost, frame_index); return result; } @@ -994,33 +994,33 @@ static void scic_sds_phy_starting_initial_substate_enter(struct sci_base_state_m static void scic_sds_phy_starting_await_sas_power_substate_enter(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); - struct scic_sds_controller *scic = iphy->owning_port->owning_controller; + struct isci_host *ihost = iphy->owning_port->owning_controller; - scic_sds_controller_power_control_queue_insert(scic, iphy); + scic_sds_controller_power_control_queue_insert(ihost, iphy); } static void scic_sds_phy_starting_await_sas_power_substate_exit(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); - struct scic_sds_controller *scic = iphy->owning_port->owning_controller; + struct isci_host *ihost = iphy->owning_port->owning_controller; - scic_sds_controller_power_control_queue_remove(scic, iphy); + scic_sds_controller_power_control_queue_remove(ihost, iphy); } static void scic_sds_phy_starting_await_sata_power_substate_enter(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); - struct scic_sds_controller *scic = iphy->owning_port->owning_controller; + struct isci_host *ihost = iphy->owning_port->owning_controller; - scic_sds_controller_power_control_queue_insert(scic, iphy); + scic_sds_controller_power_control_queue_insert(ihost, iphy); } static void scic_sds_phy_starting_await_sata_power_substate_exit(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); - struct scic_sds_controller *scic = iphy->owning_port->owning_controller; + struct isci_host *ihost = iphy->owning_port->owning_controller; - scic_sds_controller_power_control_queue_remove(scic, iphy); + scic_sds_controller_power_control_queue_remove(ihost, iphy); } static void scic_sds_phy_starting_await_sata_phy_substate_enter(struct sci_base_state_machine *sm) @@ -1313,7 +1313,7 @@ void isci_phy_init(struct isci_phy *iphy, struct isci_host *ihost, int index) u64 sci_sas_addr; __be64 sas_addr; - scic_oem_parameters_get(&ihost->sci, &oem); + scic_oem_parameters_get(ihost, &oem); sci_sas_addr = oem.sds1.phys[index].sas_address.high; sci_sas_addr <<= 32; sci_sas_addr |= oem.sds1.phys[index].sas_address.low; diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index df37b1bf7d1..c434d5a0eff 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -365,11 +365,11 @@ static void isci_port_not_ready(struct isci_host *isci_host, struct isci_port *i "%s: isci_port = %p\n", __func__, isci_port); } -static void isci_port_stop_complete(struct scic_sds_controller *scic, +static void isci_port_stop_complete(struct isci_host *ihost, struct isci_port *iport, enum sci_status completion_status) { - dev_dbg(&scic_to_ihost(scic)->pdev->dev, "Port stop complete\n"); + dev_dbg(&ihost->pdev->dev, "Port stop complete\n"); } /** @@ -541,8 +541,7 @@ static enum sci_status scic_sds_port_clear_phy(struct isci_port *iport, /* Make sure that this phy is part of this port */ if (iport->phy_table[iphy->phy_index] == iphy && phy_get_non_dummy_port(iphy) == iport) { - struct scic_sds_controller *scic = iport->owning_controller; - struct isci_host *ihost = scic_to_ihost(scic); + struct isci_host *ihost = iport->owning_controller; /* Yep it is assigned to this port so remove it */ scic_sds_phy_set_port(iphy, &ihost->ports[SCI_MAX_PORTS]); @@ -654,10 +653,10 @@ static void scic_sds_port_construct_dummy_rnc(struct isci_port *iport, u16 rni) */ static void scic_sds_port_construct_dummy_task(struct isci_port *iport, u16 tag) { - struct scic_sds_controller *scic = iport->owning_controller; + struct isci_host *ihost = iport->owning_controller; struct scu_task_context *task_context; - task_context = &scic->task_context_table[ISCI_TAG_TCI(tag)]; + task_context = &ihost->task_context_table[ISCI_TAG_TCI(tag)]; memset(task_context, 0, sizeof(struct scu_task_context)); task_context->initiator_request = 1; @@ -674,13 +673,13 @@ static void scic_sds_port_construct_dummy_task(struct isci_port *iport, u16 tag) static void scic_sds_port_destroy_dummy_resources(struct isci_port *iport) { - struct scic_sds_controller *scic = iport->owning_controller; + struct isci_host *ihost = iport->owning_controller; if (iport->reserved_tag != SCI_CONTROLLER_INVALID_IO_TAG) - isci_free_tag(scic_to_ihost(scic), iport->reserved_tag); + isci_free_tag(ihost, iport->reserved_tag); if (iport->reserved_rni != SCU_DUMMY_INDEX) - scic_sds_remote_node_table_release_remote_node_index(&scic->available_remote_nodes, + scic_sds_remote_node_table_release_remote_node_index(&ihost->available_remote_nodes, 1, iport->reserved_rni); iport->reserved_rni = SCU_DUMMY_INDEX; @@ -749,15 +748,14 @@ static void scic_sds_port_activate_phy(struct isci_port *iport, struct isci_phy *iphy, bool do_notify_user) { - struct scic_sds_controller *scic = iport->owning_controller; - struct isci_host *ihost = scic_to_ihost(scic); + struct isci_host *ihost = iport->owning_controller; if (iphy->protocol != SCIC_SDS_PHY_PROTOCOL_SATA) scic_sds_phy_resume(iphy); iport->active_phy_mask |= 1 << iphy->phy_index; - scic_sds_controller_clear_invalid_phy(scic, iphy); + scic_sds_controller_clear_invalid_phy(ihost, iphy); if (do_notify_user == true) isci_port_link_up(ihost, iport, iphy); @@ -767,8 +765,7 @@ void scic_sds_port_deactivate_phy(struct isci_port *iport, struct isci_phy *iphy, bool do_notify_user) { - struct scic_sds_controller *scic = scic_sds_port_get_controller(iport); - struct isci_host *ihost = scic_to_ihost(scic); + struct isci_host *ihost = scic_sds_port_get_controller(iport); iport->active_phy_mask &= ~(1 << iphy->phy_index); @@ -793,16 +790,16 @@ void scic_sds_port_deactivate_phy(struct isci_port *iport, static void scic_sds_port_invalid_link_up(struct isci_port *iport, struct isci_phy *iphy) { - struct scic_sds_controller *scic = iport->owning_controller; + struct isci_host *ihost = iport->owning_controller; /* * Check to see if we have alreay reported this link as bad and if * not go ahead and tell the SCI_USER that we have discovered an * invalid link. */ - if ((scic->invalid_phy_mask & (1 << iphy->phy_index)) == 0) { - scic_sds_controller_set_invalid_phy(scic, iphy); - dev_warn(&scic_to_ihost(scic)->pdev->dev, "Invalid link up!\n"); + if ((ihost->invalid_phy_mask & (1 << iphy->phy_index)) == 0) { + scic_sds_controller_set_invalid_phy(ihost, iphy); + dev_warn(&ihost->pdev->dev, "Invalid link up!\n"); } } @@ -931,7 +928,7 @@ static void port_timeout(unsigned long data) { struct sci_timer *tmr = (struct sci_timer *)data; struct isci_port *iport = container_of(tmr, typeof(*iport), timer); - struct isci_host *ihost = scic_to_ihost(iport->owning_controller); + struct isci_host *ihost = iport->owning_controller; unsigned long flags; u32 current_state; @@ -1041,19 +1038,19 @@ static void scic_sds_port_suspend_port_task_scheduler(struct isci_port *iport) */ static void scic_sds_port_post_dummy_request(struct isci_port *iport) { - struct scic_sds_controller *scic = iport->owning_controller; + struct isci_host *ihost = iport->owning_controller; u16 tag = iport->reserved_tag; struct scu_task_context *tc; u32 command; - tc = &scic->task_context_table[ISCI_TAG_TCI(tag)]; + tc = &ihost->task_context_table[ISCI_TAG_TCI(tag)]; tc->abort = 0; command = SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | iport->physical_port_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | ISCI_TAG_TCI(tag); - scic_sds_controller_post_request(scic, command); + scic_sds_controller_post_request(ihost, command); } /** @@ -1065,19 +1062,19 @@ static void scic_sds_port_post_dummy_request(struct isci_port *iport) */ static void scic_sds_port_abort_dummy_request(struct isci_port *iport) { - struct scic_sds_controller *scic = iport->owning_controller; + struct isci_host *ihost = iport->owning_controller; u16 tag = iport->reserved_tag; struct scu_task_context *tc; u32 command; - tc = &scic->task_context_table[ISCI_TAG_TCI(tag)]; + tc = &ihost->task_context_table[ISCI_TAG_TCI(tag)]; tc->abort = 1; command = SCU_CONTEXT_COMMAND_REQUEST_POST_TC_ABORT | iport->physical_port_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | ISCI_TAG_TCI(tag); - scic_sds_controller_post_request(scic, command); + scic_sds_controller_post_request(ihost, command); } /** @@ -1115,8 +1112,7 @@ static void scic_sds_port_ready_substate_operational_enter(struct sci_base_state { u32 index; struct isci_port *iport = container_of(sm, typeof(*iport), sm); - struct scic_sds_controller *scic = iport->owning_controller; - struct isci_host *ihost = scic_to_ihost(scic); + struct isci_host *ihost = iport->owning_controller; isci_port_ready(ihost, iport); @@ -1141,13 +1137,13 @@ static void scic_sds_port_ready_substate_operational_enter(struct sci_base_state static void scic_sds_port_invalidate_dummy_remote_node(struct isci_port *iport) { - struct scic_sds_controller *scic = iport->owning_controller; + struct isci_host *ihost = iport->owning_controller; u8 phys_index = iport->physical_port_index; union scu_remote_node_context *rnc; u16 rni = iport->reserved_rni; u32 command; - rnc = &scic->remote_node_context_table[rni]; + rnc = &ihost->remote_node_context_table[rni]; rnc->ssp.is_valid = false; @@ -1155,13 +1151,13 @@ static void scic_sds_port_invalidate_dummy_remote_node(struct isci_port *iport) * controller and give it ample time to act before posting the rnc * invalidate */ - readl(&scic->smu_registers->interrupt_status); /* flush */ + readl(&ihost->smu_registers->interrupt_status); /* flush */ udelay(10); command = SCU_CONTEXT_COMMAND_POST_RNC_INVALIDATE | phys_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | rni; - scic_sds_controller_post_request(scic, command); + scic_sds_controller_post_request(ihost, command); } /** @@ -1175,8 +1171,7 @@ static void scic_sds_port_invalidate_dummy_remote_node(struct isci_port *iport) static void scic_sds_port_ready_substate_operational_exit(struct sci_base_state_machine *sm) { struct isci_port *iport = container_of(sm, typeof(*iport), sm); - struct scic_sds_controller *scic = iport->owning_controller; - struct isci_host *ihost = scic_to_ihost(scic); + struct isci_host *ihost = iport->owning_controller; /* * Kill the dummy task for this port if it has not yet posted @@ -1194,8 +1189,7 @@ static void scic_sds_port_ready_substate_operational_exit(struct sci_base_state_ static void scic_sds_port_ready_substate_configuring_enter(struct sci_base_state_machine *sm) { struct isci_port *iport = container_of(sm, typeof(*iport), sm); - struct scic_sds_controller *scic = iport->owning_controller; - struct isci_host *ihost = scic_to_ihost(scic); + struct isci_host *ihost = iport->owning_controller; if (iport->active_phy_mask == 0) { isci_port_not_ready(ihost, iport); @@ -1218,7 +1212,7 @@ static void scic_sds_port_ready_substate_configuring_exit(struct sci_base_state_ enum sci_status scic_sds_port_start(struct isci_port *iport) { - struct scic_sds_controller *scic = iport->owning_controller; + struct isci_host *ihost = iport->owning_controller; enum sci_status status = SCI_SUCCESS; enum scic_sds_port_states state; u32 phy_mask; @@ -1241,7 +1235,7 @@ enum sci_status scic_sds_port_start(struct isci_port *iport) if (iport->reserved_rni == SCU_DUMMY_INDEX) { u16 rni = scic_sds_remote_node_table_allocate_remote_node( - &scic->available_remote_nodes, 1); + &ihost->available_remote_nodes, 1); if (rni != SCU_DUMMY_INDEX) scic_sds_port_construct_dummy_rnc(iport, rni); @@ -1251,7 +1245,6 @@ enum sci_status scic_sds_port_start(struct isci_port *iport) } if (iport->reserved_tag == SCI_CONTROLLER_INVALID_IO_TAG) { - struct isci_host *ihost = scic_to_ihost(scic); u16 tag; tag = isci_alloc_tag(ihost); @@ -1634,30 +1627,30 @@ scic_sds_port_disable_port_task_scheduler(struct isci_port *iport) static void scic_sds_port_post_dummy_remote_node(struct isci_port *iport) { - struct scic_sds_controller *scic = iport->owning_controller; + struct isci_host *ihost = iport->owning_controller; u8 phys_index = iport->physical_port_index; union scu_remote_node_context *rnc; u16 rni = iport->reserved_rni; u32 command; - rnc = &scic->remote_node_context_table[rni]; + rnc = &ihost->remote_node_context_table[rni]; rnc->ssp.is_valid = true; command = SCU_CONTEXT_COMMAND_POST_RNC_32 | phys_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | rni; - scic_sds_controller_post_request(scic, command); + scic_sds_controller_post_request(ihost, command); /* ensure hardware has seen the post rnc command and give it * ample time to act before sending the suspend */ - readl(&scic->smu_registers->interrupt_status); /* flush */ + readl(&ihost->smu_registers->interrupt_status); /* flush */ udelay(10); command = SCU_CONTEXT_COMMAND_POST_RNC_SUSPEND_TX_RX | phys_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | rni; - scic_sds_controller_post_request(scic, command); + scic_sds_controller_post_request(ihost, command); } static void scic_sds_port_stopped_state_enter(struct sci_base_state_machine *sm) @@ -1684,8 +1677,7 @@ static void scic_sds_port_stopped_state_exit(struct sci_base_state_machine *sm) static void scic_sds_port_ready_state_enter(struct sci_base_state_machine *sm) { struct isci_port *iport = container_of(sm, typeof(*iport), sm); - struct scic_sds_controller *scic = iport->owning_controller; - struct isci_host *ihost = scic_to_ihost(scic); + struct isci_host *ihost = iport->owning_controller; u32 prev_state; prev_state = iport->sm.previous_state_id; @@ -1758,7 +1750,7 @@ static const struct sci_base_state scic_sds_port_state_table[] = { }; void scic_sds_port_construct(struct isci_port *iport, u8 index, - struct scic_sds_controller *scic) + struct isci_host *ihost) { sci_init_sm(&iport->sm, scic_sds_port_state_table, SCI_PORT_STOPPED); @@ -1767,7 +1759,7 @@ void scic_sds_port_construct(struct isci_port *iport, u8 index, iport->active_phy_mask = 0; iport->ready_exit = false; - iport->owning_controller = scic; + iport->owning_controller = ihost; iport->started_request_count = 0; iport->assigned_device_count = 0; @@ -1810,8 +1802,7 @@ void scic_sds_port_broadcast_change_received( struct isci_port *iport, struct isci_phy *iphy) { - struct scic_sds_controller *scic = iport->owning_controller; - struct isci_host *ihost = scic_to_ihost(scic); + struct isci_host *ihost = iport->owning_controller; /* notify the user. */ isci_port_bc_change_received(ihost, iport, iphy); diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index b9bc89bf651..9a9be7b47b4 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -115,7 +115,7 @@ struct isci_port { u32 assigned_device_count; u32 not_ready_reason; struct isci_phy *phy_table[SCI_MAX_PHYS]; - struct scic_sds_controller *owning_controller; + struct isci_host *owning_controller; struct sci_timer timer; struct scu_port_task_scheduler_registers __iomem *port_task_scheduler_registers; /* XXX rework: only one register, no need to replicate per-port */ @@ -243,7 +243,7 @@ static inline void scic_sds_port_decrement_request_count(struct isci_port *iport void scic_sds_port_construct( struct isci_port *iport, u8 port_index, - struct scic_sds_controller *scic); + struct isci_host *ihost); enum sci_status scic_sds_port_initialize( struct isci_port *iport, diff --git a/drivers/scsi/isci/port_config.c b/drivers/scsi/isci/port_config.c index bb62d2a2521..a0a135d54e9 100644 --- a/drivers/scsi/isci/port_config.c +++ b/drivers/scsi/isci/port_config.c @@ -113,7 +113,7 @@ static s32 sci_sas_address_compare( * NULL if there is no matching port for the phy. */ static struct isci_port *scic_sds_port_configuration_agent_find_port( - struct scic_sds_controller *scic, + struct isci_host *ihost, struct isci_phy *iphy) { u8 i; @@ -130,8 +130,7 @@ static struct isci_port *scic_sds_port_configuration_agent_find_port( scic_sds_phy_get_sas_address(iphy, &phy_sas_address); scic_sds_phy_get_attached_sas_address(iphy, &phy_attached_device_address); - for (i = 0; i < scic->logical_port_entries; i++) { - struct isci_host *ihost = scic_to_ihost(scic); + for (i = 0; i < ihost->logical_port_entries; i++) { struct isci_port *iport = &ihost->ports[i]; scic_sds_port_get_sas_address(iport, &port_sas_address); @@ -158,10 +157,9 @@ static struct isci_port *scic_sds_port_configuration_agent_find_port( * the port configuration is not valid for this port configuration agent. */ static enum sci_status scic_sds_port_configuration_agent_validate_ports( - struct scic_sds_controller *controller, + struct isci_host *ihost, struct scic_sds_port_configuration_agent *port_agent) { - struct isci_host *ihost = scic_to_ihost(controller); struct sci_sas_address first_address; struct sci_sas_address second_address; @@ -239,17 +237,11 @@ static enum sci_status scic_sds_port_configuration_agent_validate_ports( * Manual port configuration agent routines * ****************************************************************************** */ -/** - * - * - * This routine will verify that all of the phys in the same port are using the - * same SAS address. - */ -static enum sci_status scic_sds_mpc_agent_validate_phy_configuration( - struct scic_sds_controller *controller, - struct scic_sds_port_configuration_agent *port_agent) +/* verify all of the phys in the same port are using the same SAS address */ +static enum sci_status +scic_sds_mpc_agent_validate_phy_configuration(struct isci_host *ihost, + struct scic_sds_port_configuration_agent *port_agent) { - struct isci_host *ihost = scic_to_ihost(controller); u32 phy_mask; u32 assigned_phy_mask; struct sci_sas_address sas_address; @@ -262,7 +254,7 @@ static enum sci_status scic_sds_mpc_agent_validate_phy_configuration( sas_address.low = 0; for (port_index = 0; port_index < SCI_MAX_PORTS; port_index++) { - phy_mask = controller->oem_parameters.sds1.ports[port_index].phy_mask; + phy_mask = ihost->oem_parameters.sds1.ports[port_index].phy_mask; if (!phy_mask) continue; @@ -324,7 +316,7 @@ static enum sci_status scic_sds_mpc_agent_validate_phy_configuration( phy_index++; } - return scic_sds_port_configuration_agent_validate_ports(controller, port_agent); + return scic_sds_port_configuration_agent_validate_ports(ihost, port_agent); } static void mpc_agent_timeout(unsigned long data) @@ -332,14 +324,12 @@ static void mpc_agent_timeout(unsigned long data) u8 index; struct sci_timer *tmr = (struct sci_timer *)data; struct scic_sds_port_configuration_agent *port_agent; - struct scic_sds_controller *scic; struct isci_host *ihost; unsigned long flags; u16 configure_phy_mask; port_agent = container_of(tmr, typeof(*port_agent), timer); - scic = container_of(port_agent, typeof(*scic), port_agent); - ihost = scic_to_ihost(scic); + ihost = container_of(port_agent, typeof(*ihost), port_agent); spin_lock_irqsave(&ihost->scic_lock, flags); @@ -355,7 +345,7 @@ static void mpc_agent_timeout(unsigned long data) struct isci_phy *iphy = &ihost->phys[index]; if (configure_phy_mask & (1 << index)) { - port_agent->link_up_handler(scic, port_agent, + port_agent->link_up_handler(ihost, port_agent, phy_get_non_dummy_port(iphy), iphy); } @@ -365,7 +355,7 @@ done: spin_unlock_irqrestore(&ihost->scic_lock, flags); } -static void scic_sds_mpc_agent_link_up(struct scic_sds_controller *controller, +static void scic_sds_mpc_agent_link_up(struct isci_host *ihost, struct scic_sds_port_configuration_agent *port_agent, struct isci_port *iport, struct isci_phy *iphy) @@ -401,7 +391,7 @@ static void scic_sds_mpc_agent_link_up(struct scic_sds_controller *controller, * link down notification from a phy that has no assocoated port? */ static void scic_sds_mpc_agent_link_down( - struct scic_sds_controller *scic, + struct isci_host *ihost, struct scic_sds_port_configuration_agent *port_agent, struct isci_port *iport, struct isci_phy *iphy) @@ -438,26 +428,17 @@ static void scic_sds_mpc_agent_link_down( } } -/* - * ****************************************************************************** - * Automatic port configuration agent routines - * ****************************************************************************** */ - -/** - * - * - * This routine will verify that the phys are assigned a valid SAS address for - * automatic port configuration mode. +/* verify phys are assigned a valid SAS address for automatic port + * configuration mode. */ -static enum sci_status scic_sds_apc_agent_validate_phy_configuration( - struct scic_sds_controller *controller, - struct scic_sds_port_configuration_agent *port_agent) +static enum sci_status +scic_sds_apc_agent_validate_phy_configuration(struct isci_host *ihost, + struct scic_sds_port_configuration_agent *port_agent) { u8 phy_index; u8 port_index; struct sci_sas_address sas_address; struct sci_sas_address phy_assigned_address; - struct isci_host *ihost = scic_to_ihost(controller); phy_index = 0; @@ -484,10 +465,10 @@ static enum sci_status scic_sds_apc_agent_validate_phy_configuration( } } - return scic_sds_port_configuration_agent_validate_ports(controller, port_agent); + return scic_sds_port_configuration_agent_validate_ports(ihost, port_agent); } -static void scic_sds_apc_agent_configure_ports(struct scic_sds_controller *controller, +static void scic_sds_apc_agent_configure_ports(struct isci_host *ihost, struct scic_sds_port_configuration_agent *port_agent, struct isci_phy *iphy, bool start_timer) @@ -496,9 +477,8 @@ static void scic_sds_apc_agent_configure_ports(struct scic_sds_controller *contr enum sci_status status; struct isci_port *iport; enum SCIC_SDS_APC_ACTIVITY apc_activity = SCIC_SDS_APC_SKIP_PHY; - struct isci_host *ihost = scic_to_ihost(controller); - iport = scic_sds_port_configuration_agent_find_port(controller, iphy); + iport = scic_sds_port_configuration_agent_find_port(ihost, iphy); if (iport) { if (scic_sds_port_is_valid_phy_assignment(iport, iphy->phy_index)) @@ -619,7 +599,7 @@ static void scic_sds_apc_agent_configure_ports(struct scic_sds_controller *contr * notifications. Is it possible to get a link down notification from a phy * that has no assocoated port? */ -static void scic_sds_apc_agent_link_up(struct scic_sds_controller *scic, +static void scic_sds_apc_agent_link_up(struct isci_host *ihost, struct scic_sds_port_configuration_agent *port_agent, struct isci_port *iport, struct isci_phy *iphy) @@ -629,7 +609,7 @@ static void scic_sds_apc_agent_link_up(struct scic_sds_controller *scic, if (!iport) { /* the phy is not the part of this port */ port_agent->phy_ready_mask |= 1 << phy_index; - scic_sds_apc_agent_configure_ports(scic, port_agent, iphy, true); + scic_sds_apc_agent_configure_ports(ihost, port_agent, iphy, true); } else { /* the phy is already the part of the port */ u32 port_state = iport->sm.current_state_id; @@ -658,7 +638,7 @@ static void scic_sds_apc_agent_link_up(struct scic_sds_controller *scic, * port? */ static void scic_sds_apc_agent_link_down( - struct scic_sds_controller *controller, + struct isci_host *ihost, struct scic_sds_port_configuration_agent *port_agent, struct isci_port *iport, struct isci_phy *iphy) @@ -683,14 +663,12 @@ static void apc_agent_timeout(unsigned long data) u32 index; struct sci_timer *tmr = (struct sci_timer *)data; struct scic_sds_port_configuration_agent *port_agent; - struct scic_sds_controller *scic; struct isci_host *ihost; unsigned long flags; u16 configure_phy_mask; port_agent = container_of(tmr, typeof(*port_agent), timer); - scic = container_of(port_agent, typeof(*scic), port_agent); - ihost = scic_to_ihost(scic); + ihost = container_of(port_agent, typeof(*ihost), port_agent); spin_lock_irqsave(&ihost->scic_lock, flags); @@ -708,7 +686,7 @@ static void apc_agent_timeout(unsigned long data) if ((configure_phy_mask & (1 << index)) == 0) continue; - scic_sds_apc_agent_configure_ports(scic, port_agent, + scic_sds_apc_agent_configure_ports(ihost, port_agent, &ihost->phys[index], false); } @@ -748,17 +726,17 @@ void scic_sds_port_configuration_agent_construct( } enum sci_status scic_sds_port_configuration_agent_initialize( - struct scic_sds_controller *scic, + struct isci_host *ihost, struct scic_sds_port_configuration_agent *port_agent) { enum sci_status status; enum scic_port_configuration_mode mode; - mode = scic->oem_parameters.sds1.controller.mode_type; + mode = ihost->oem_parameters.sds1.controller.mode_type; if (mode == SCIC_PORT_MANUAL_CONFIGURATION_MODE) { status = scic_sds_mpc_agent_validate_phy_configuration( - scic, port_agent); + ihost, port_agent); port_agent->link_up_handler = scic_sds_mpc_agent_link_up; port_agent->link_down_handler = scic_sds_mpc_agent_link_down; @@ -766,7 +744,7 @@ enum sci_status scic_sds_port_configuration_agent_initialize( sci_init_timer(&port_agent->timer, mpc_agent_timeout); } else { status = scic_sds_apc_agent_validate_phy_configuration( - scic, port_agent); + ihost, port_agent); port_agent->link_up_handler = scic_sds_apc_agent_link_up; port_agent->link_down_handler = scic_sds_apc_agent_link_down; diff --git a/drivers/scsi/isci/probe_roms.h b/drivers/scsi/isci/probe_roms.h index 95c8d91aab8..e40cb5f6eba 100644 --- a/drivers/scsi/isci/probe_roms.h +++ b/drivers/scsi/isci/probe_roms.h @@ -165,7 +165,7 @@ struct scic_sds_oem_params; int scic_oem_parameters_validate(struct scic_sds_oem_params *oem); union scic_oem_parameters; -void scic_oem_parameters_get(struct scic_sds_controller *scic, +void scic_oem_parameters_get(struct isci_host *ihost, union scic_oem_parameters *oem); struct isci_orom; diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index 3b0234049a3..9043b458c99 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -62,7 +62,7 @@ #include "task.h" /** - * isci_remote_device_not_ready() - This function is called by the scic when + * isci_remote_device_not_ready() - This function is called by the ihost when * the remote device is not ready. We mark the isci device as ready (not * "ready_for_io") and signal the waiting proccess. * @isci_host: This parameter specifies the isci host object. @@ -92,7 +92,7 @@ static void isci_remote_device_not_ready(struct isci_host *ihost, "%s: isci_device = %p request = %p\n", __func__, idev, ireq); - scic_controller_terminate_request(&ihost->sci, + scic_controller_terminate_request(ihost, idev, ireq); } @@ -104,7 +104,7 @@ static void isci_remote_device_not_ready(struct isci_host *ihost, } /** - * isci_remote_device_ready() - This function is called by the scic when the + * isci_remote_device_ready() - This function is called by the ihost when the * remote device is ready. We mark the isci device as ready and signal the * waiting proccess. * @ihost: our valid isci_host @@ -135,8 +135,7 @@ static void rnc_destruct_done(void *_dev) static enum sci_status scic_sds_remote_device_terminate_requests(struct isci_remote_device *idev) { - struct scic_sds_controller *scic = idev->owning_port->owning_controller; - struct isci_host *ihost = scic_to_ihost(scic); + struct isci_host *ihost = idev->owning_port->owning_controller; enum sci_status status = SCI_SUCCESS; u32 i; @@ -148,7 +147,7 @@ static enum sci_status scic_sds_remote_device_terminate_requests(struct isci_rem ireq->target_device != idev) continue; - s = scic_controller_terminate_request(scic, idev, ireq); + s = scic_controller_terminate_request(ihost, idev, ireq); if (s != SCI_SUCCESS) status = s; } @@ -276,7 +275,7 @@ enum sci_status scic_sds_remote_device_frame_handler(struct isci_remote_device * { struct sci_base_state_machine *sm = &idev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; - struct scic_sds_controller *scic = idev->owning_port->owning_controller; + struct isci_host *ihost = idev->owning_port->owning_controller; enum sci_status status; switch (state) { @@ -290,7 +289,7 @@ enum sci_status scic_sds_remote_device_frame_handler(struct isci_remote_device * dev_warn(scirdev_to_dev(idev), "%s: in wrong state: %d\n", __func__, state); /* Return the frame back to the controller */ - scic_sds_controller_release_frame(scic, frame_index); + scic_sds_controller_release_frame(ihost, frame_index); return SCI_FAILURE_INVALID_STATE; case SCI_DEV_READY: case SCI_STP_DEV_NCQ_ERROR: @@ -303,7 +302,7 @@ enum sci_status scic_sds_remote_device_frame_handler(struct isci_remote_device * void *frame_header; ssize_t word_cnt; - status = scic_sds_unsolicited_frame_control_get_header(&scic->uf_control, + status = scic_sds_unsolicited_frame_control_get_header(&ihost->uf_control, frame_index, &frame_header); if (status != SCI_SUCCESS) @@ -312,7 +311,7 @@ enum sci_status scic_sds_remote_device_frame_handler(struct isci_remote_device * word_cnt = sizeof(hdr) / sizeof(u32); sci_swab32_cpy(&hdr, frame_header, word_cnt); - ireq = scic_request_by_tag(scic, be16_to_cpu(hdr.tag)); + ireq = scic_request_by_tag(ihost, be16_to_cpu(hdr.tag)); if (ireq && ireq->target_device == idev) { /* The IO request is now in charge of releasing the frame */ status = scic_sds_io_request_frame_handler(ireq, frame_index); @@ -320,14 +319,14 @@ enum sci_status scic_sds_remote_device_frame_handler(struct isci_remote_device * /* We could not map this tag to a valid IO * request Just toss the frame and continue */ - scic_sds_controller_release_frame(scic, frame_index); + scic_sds_controller_release_frame(ihost, frame_index); } break; } case SCI_STP_DEV_NCQ: { struct dev_to_host_fis *hdr; - status = scic_sds_unsolicited_frame_control_get_header(&scic->uf_control, + status = scic_sds_unsolicited_frame_control_get_header(&ihost->uf_control, frame_index, (void **)&hdr); if (status != SCI_SUCCESS) @@ -350,7 +349,7 @@ enum sci_status scic_sds_remote_device_frame_handler(struct isci_remote_device * } else status = SCI_FAILURE; - scic_sds_controller_release_frame(scic, frame_index); + scic_sds_controller_release_frame(ihost, frame_index); break; } case SCI_STP_DEV_CMD: @@ -461,7 +460,7 @@ static void scic_sds_remote_device_start_request(struct isci_remote_device *idev } } -enum sci_status scic_sds_remote_device_start_io(struct scic_sds_controller *scic, +enum sci_status scic_sds_remote_device_start_io(struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq) { @@ -597,7 +596,7 @@ static enum sci_status common_complete_io(struct isci_port *iport, return status; } -enum sci_status scic_sds_remote_device_complete_io(struct scic_sds_controller *scic, +enum sci_status scic_sds_remote_device_complete_io(struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq) { @@ -678,7 +677,7 @@ static void scic_sds_remote_device_continue_request(void *dev) scic_controller_continue_io(idev->working_request); } -enum sci_status scic_sds_remote_device_start_task(struct scic_sds_controller *scic, +enum sci_status scic_sds_remote_device_start_task(struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq) { @@ -802,13 +801,13 @@ static void remote_device_resume_done(void *_dev) static void scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handler(void *_dev) { struct isci_remote_device *idev = _dev; - struct scic_sds_controller *scic = idev->owning_port->owning_controller; + struct isci_host *ihost = idev->owning_port->owning_controller; /* For NCQ operation we do not issue a isci_remote_device_not_ready(). * As a result, avoid sending the ready notification. */ if (idev->sm.previous_state_id != SCI_STP_DEV_NCQ) - isci_remote_device_ready(scic_to_ihost(scic), idev); + isci_remote_device_ready(ihost, idev); } static void scic_sds_remote_device_initial_state_enter(struct sci_base_state_machine *sm) @@ -836,7 +835,7 @@ static enum sci_status scic_remote_device_destruct(struct isci_remote_device *id { struct sci_base_state_machine *sm = &idev->sm; enum scic_sds_remote_device_states state = sm->current_state_id; - struct scic_sds_controller *scic; + struct isci_host *ihost; if (state != SCI_DEV_STOPPED) { dev_warn(scirdev_to_dev(idev), "%s: in wrong state: %d\n", @@ -844,8 +843,8 @@ static enum sci_status scic_remote_device_destruct(struct isci_remote_device *id return SCI_FAILURE_INVALID_STATE; } - scic = idev->owning_port->owning_controller; - scic_sds_controller_free_remote_node_context(scic, idev, + ihost = idev->owning_port->owning_controller; + scic_sds_controller_free_remote_node_context(ihost, idev, idev->rnc.remote_node_index); idev->rnc.remote_node_index = SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX; sci_change_state(sm, SCI_DEV_FINAL); @@ -878,7 +877,7 @@ static void isci_remote_device_deconstruct(struct isci_host *ihost, struct isci_ static void scic_sds_remote_device_stopped_state_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - struct scic_sds_controller *scic = idev->owning_port->owning_controller; + struct isci_host *ihost = idev->owning_port->owning_controller; u32 prev_state; /* If we are entering from the stopping state let the SCI User know that @@ -886,16 +885,15 @@ static void scic_sds_remote_device_stopped_state_enter(struct sci_base_state_mac */ prev_state = idev->sm.previous_state_id; if (prev_state == SCI_DEV_STOPPING) - isci_remote_device_deconstruct(scic_to_ihost(scic), idev); + isci_remote_device_deconstruct(ihost, idev); - scic_sds_controller_remote_device_stopped(scic, idev); + scic_sds_controller_remote_device_stopped(ihost, idev); } static void scic_sds_remote_device_starting_state_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(idev); - struct isci_host *ihost = scic_to_ihost(scic); + struct isci_host *ihost = scic_sds_remote_device_get_controller(idev); isci_remote_device_not_ready(ihost, idev, SCIC_REMOTE_DEVICE_NOT_READY_START_REQUESTED); @@ -904,7 +902,7 @@ static void scic_sds_remote_device_starting_state_enter(struct sci_base_state_ma static void scic_sds_remote_device_ready_state_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - struct scic_sds_controller *scic = idev->owning_port->owning_controller; + struct isci_host *ihost = idev->owning_port->owning_controller; struct domain_device *dev = idev->domain_dev; if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_SATA)) { @@ -912,7 +910,7 @@ static void scic_sds_remote_device_ready_state_enter(struct sci_base_state_machi } else if (dev_is_expander(dev)) { sci_change_state(&idev->sm, SCI_SMP_DEV_IDLE); } else - isci_remote_device_ready(scic_to_ihost(scic), idev); + isci_remote_device_ready(ihost, idev); } static void scic_sds_remote_device_ready_state_exit(struct sci_base_state_machine *sm) @@ -921,9 +919,9 @@ static void scic_sds_remote_device_ready_state_exit(struct sci_base_state_machin struct domain_device *dev = idev->domain_dev; if (dev->dev_type == SAS_END_DEV) { - struct scic_sds_controller *scic = idev->owning_port->owning_controller; + struct isci_host *ihost = idev->owning_port->owning_controller; - isci_remote_device_not_ready(scic_to_ihost(scic), idev, + isci_remote_device_not_ready(ihost, idev, SCIC_REMOTE_DEVICE_NOT_READY_STOP_REQUESTED); } } @@ -963,40 +961,40 @@ static void scic_sds_stp_remote_device_ready_idle_substate_enter(struct sci_base static void scic_sds_stp_remote_device_ready_cmd_substate_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(idev); + struct isci_host *ihost = scic_sds_remote_device_get_controller(idev); BUG_ON(idev->working_request == NULL); - isci_remote_device_not_ready(scic_to_ihost(scic), idev, + isci_remote_device_not_ready(ihost, idev, SCIC_REMOTE_DEVICE_NOT_READY_SATA_REQUEST_STARTED); } static void scic_sds_stp_remote_device_ready_ncq_error_substate_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(idev); + struct isci_host *ihost = scic_sds_remote_device_get_controller(idev); if (idev->not_ready_reason == SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED) - isci_remote_device_not_ready(scic_to_ihost(scic), idev, + isci_remote_device_not_ready(ihost, idev, idev->not_ready_reason); } static void scic_sds_smp_remote_device_ready_idle_substate_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(idev); + struct isci_host *ihost = scic_sds_remote_device_get_controller(idev); - isci_remote_device_ready(scic_to_ihost(scic), idev); + isci_remote_device_ready(ihost, idev); } static void scic_sds_smp_remote_device_ready_cmd_substate_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - struct scic_sds_controller *scic = scic_sds_remote_device_get_controller(idev); + struct isci_host *ihost = scic_sds_remote_device_get_controller(idev); BUG_ON(idev->working_request == NULL); - isci_remote_device_not_ready(scic_to_ihost(scic), idev, + isci_remote_device_not_ready(ihost, idev, SCIC_REMOTE_DEVICE_NOT_READY_SMP_REQUEST_STARTED); } @@ -1303,7 +1301,7 @@ void isci_remote_device_release(struct kref *kref) * @isci_host: This parameter specifies the isci host object. * @isci_device: This parameter specifies the remote device. * - * The status of the scic request to stop. + * The status of the ihost request to stop. */ enum sci_status isci_remote_device_stop(struct isci_host *ihost, struct isci_remote_device *idev) { diff --git a/drivers/scsi/isci/remote_device.h b/drivers/scsi/isci/remote_device.h index 45798582fc1..bc4da20a13f 100644 --- a/drivers/scsi/isci/remote_device.h +++ b/drivers/scsi/isci/remote_device.h @@ -402,17 +402,17 @@ enum sci_status scic_sds_remote_device_event_handler( u32 event_code); enum sci_status scic_sds_remote_device_start_io( - struct scic_sds_controller *controller, + struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq); enum sci_status scic_sds_remote_device_start_task( - struct scic_sds_controller *controller, + struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq); enum sci_status scic_sds_remote_device_complete_io( - struct scic_sds_controller *controller, + struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq); diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index e485744e126..8a5203b6eb0 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -107,11 +107,11 @@ static void scic_sds_remote_node_context_construct_buffer( struct domain_device *dev = idev->domain_dev; int rni = sci_rnc->remote_node_index; union scu_remote_node_context *rnc; - struct scic_sds_controller *scic; + struct isci_host *ihost; __le64 sas_addr; - scic = scic_sds_remote_device_get_controller(idev); - rnc = scic_sds_controller_get_remote_node_context_buffer(scic, rni); + ihost = scic_sds_remote_device_get_controller(idev); + rnc = scic_sds_controller_get_remote_node_context_buffer(ihost, rni); memset(rnc, 0, sizeof(union scu_remote_node_context) * scic_sds_remote_device_node_count(idev)); @@ -135,14 +135,14 @@ static void scic_sds_remote_node_context_construct_buffer( if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) { rnc->ssp.connection_occupancy_timeout = - scic->user_parameters.sds1.stp_max_occupancy_timeout; + ihost->user_parameters.sds1.stp_max_occupancy_timeout; rnc->ssp.connection_inactivity_timeout = - scic->user_parameters.sds1.stp_inactivity_timeout; + ihost->user_parameters.sds1.stp_inactivity_timeout; } else { rnc->ssp.connection_occupancy_timeout = - scic->user_parameters.sds1.ssp_max_occupancy_timeout; + ihost->user_parameters.sds1.ssp_max_occupancy_timeout; rnc->ssp.connection_inactivity_timeout = - scic->user_parameters.sds1.ssp_inactivity_timeout; + ihost->user_parameters.sds1.ssp_inactivity_timeout; } rnc->ssp.initial_arbitration_wait_time = 0; diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index 90ead662828..36e674896bc 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -74,19 +74,19 @@ static struct scu_sgl_element_pair *to_sgl_element_pair(struct isci_request *ire return &ireq->sg_table[idx - 2]; } -static dma_addr_t to_sgl_element_pair_dma(struct scic_sds_controller *scic, +static dma_addr_t to_sgl_element_pair_dma(struct isci_host *ihost, struct isci_request *ireq, u32 idx) { u32 offset; if (idx == 0) { offset = (void *) &ireq->tc->sgl_pair_ab - - (void *) &scic->task_context_table[0]; - return scic->task_context_dma + offset; + (void *) &ihost->task_context_table[0]; + return ihost->task_context_dma + offset; } else if (idx == 1) { offset = (void *) &ireq->tc->sgl_pair_cd - - (void *) &scic->task_context_table[0]; - return scic->task_context_dma + offset; + (void *) &ihost->task_context_table[0]; + return ihost->task_context_dma + offset; } return scic_io_request_get_dma_addr(ireq, &ireq->sg_table[idx - 2]); @@ -102,8 +102,7 @@ static void init_sgl_element(struct scu_sgl_element *e, struct scatterlist *sg) static void scic_sds_request_build_sgl(struct isci_request *ireq) { - struct isci_host *isci_host = ireq->isci_host; - struct scic_sds_controller *scic = &isci_host->sci; + struct isci_host *ihost = ireq->isci_host; struct sas_task *task = isci_request_access_task(ireq); struct scatterlist *sg = NULL; dma_addr_t dma_addr; @@ -125,7 +124,7 @@ static void scic_sds_request_build_sgl(struct isci_request *ireq) memset(&scu_sg->B, 0, sizeof(scu_sg->B)); if (prev_sg) { - dma_addr = to_sgl_element_pair_dma(scic, + dma_addr = to_sgl_element_pair_dma(ihost, ireq, sg_idx); @@ -141,7 +140,7 @@ static void scic_sds_request_build_sgl(struct isci_request *ireq) } else { /* handle when no sg */ scu_sg = to_sgl_element_pair(ireq, sg_idx); - dma_addr = dma_map_single(&isci_host->pdev->dev, + dma_addr = dma_map_single(&ihost->pdev->dev, task->scatter, task->total_xfer_len, task->data_dir); @@ -508,7 +507,7 @@ scic_io_request_construct_sata(struct isci_request *ireq, scu_stp_raw_request_construct_task_context(ireq); return SCI_SUCCESS; } else { - dev_err(scic_to_dev(ireq->owning_controller), + dev_err(&ireq->owning_controller->pdev->dev, "%s: Request 0x%p received un-handled SAT " "management protocol 0x%x.\n", __func__, ireq, tmf->tmf_code); @@ -518,7 +517,7 @@ scic_io_request_construct_sata(struct isci_request *ireq, } if (!sas_protocol_ata(task->task_proto)) { - dev_err(scic_to_dev(ireq->owning_controller), + dev_err(&ireq->owning_controller->pdev->dev, "%s: Non-ATA protocol in SATA path: 0x%x\n", __func__, task->task_proto); @@ -616,7 +615,7 @@ enum sci_status scic_task_request_construct_sata(struct isci_request *ireq) tmf->tmf_code == isci_tmf_sata_srst_low) { scu_stp_raw_request_construct_task_context(ireq); } else { - dev_err(scic_to_dev(ireq->owning_controller), + dev_err(&ireq->owning_controller->pdev->dev, "%s: Request 0x%p received un-handled SAT " "Protocol 0x%x.\n", __func__, ireq, tmf->tmf_code); @@ -639,11 +638,11 @@ enum sci_status scic_task_request_construct_sata(struct isci_request *ireq) #define SCU_TASK_CONTEXT_SRAM 0x200000 static u32 sci_req_tx_bytes(struct isci_request *ireq) { - struct scic_sds_controller *scic = ireq->owning_controller; + struct isci_host *ihost = ireq->owning_controller; u32 ret_val = 0; - if (readl(&scic->smu_registers->address_modifier) == 0) { - void __iomem *scu_reg_base = scic->scu_registers; + if (readl(&ihost->smu_registers->address_modifier) == 0) { + void __iomem *scu_reg_base = ihost->scu_registers; /* get the bytes of data from the Address == BAR1 + 20002Ch + (256*TCi) where * BAR1 is the scu_registers @@ -663,11 +662,11 @@ enum sci_status scic_sds_request_start(struct isci_request *ireq) { enum sci_base_request_states state; struct scu_task_context *tc = ireq->tc; - struct scic_sds_controller *scic = ireq->owning_controller; + struct isci_host *ihost = ireq->owning_controller; state = ireq->sm.current_state_id; if (state != SCI_REQ_CONSTRUCTED) { - dev_warn(scic_to_dev(scic), + dev_warn(&ihost->pdev->dev, "%s: SCIC IO Request requested to start while in wrong " "state %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; @@ -749,7 +748,7 @@ scic_sds_io_request_terminate(struct isci_request *ireq) return SCI_SUCCESS; case SCI_REQ_COMPLETED: default: - dev_warn(scic_to_dev(ireq->owning_controller), + dev_warn(&ireq->owning_controller->pdev->dev, "%s: SCIC IO Request requested to abort while in wrong " "state %d\n", __func__, @@ -763,7 +762,7 @@ scic_sds_io_request_terminate(struct isci_request *ireq) enum sci_status scic_sds_request_complete(struct isci_request *ireq) { enum sci_base_request_states state; - struct scic_sds_controller *scic = ireq->owning_controller; + struct isci_host *ihost = ireq->owning_controller; state = ireq->sm.current_state_id; if (WARN_ONCE(state != SCI_REQ_COMPLETED, @@ -771,7 +770,7 @@ enum sci_status scic_sds_request_complete(struct isci_request *ireq) return SCI_FAILURE_INVALID_STATE; if (ireq->saved_rx_frame_index != SCU_INVALID_FRAME_INDEX) - scic_sds_controller_release_frame(scic, + scic_sds_controller_release_frame(ihost, ireq->saved_rx_frame_index); /* XXX can we just stop the machine and remove the 'final' state? */ @@ -783,12 +782,12 @@ enum sci_status scic_sds_io_request_event_handler(struct isci_request *ireq, u32 event_code) { enum sci_base_request_states state; - struct scic_sds_controller *scic = ireq->owning_controller; + struct isci_host *ihost = ireq->owning_controller; state = ireq->sm.current_state_id; if (state != SCI_REQ_STP_PIO_DATA_IN) { - dev_warn(scic_to_dev(scic), "%s: (%x) in wrong state %d\n", + dev_warn(&ihost->pdev->dev, "%s: (%x) in wrong state %d\n", __func__, event_code, state); return SCI_FAILURE_INVALID_STATE; @@ -802,7 +801,7 @@ enum sci_status scic_sds_io_request_event_handler(struct isci_request *ireq, sci_change_state(&ireq->sm, SCI_REQ_STP_PIO_WAIT_FRAME); return SCI_SUCCESS; default: - dev_err(scic_to_dev(scic), + dev_err(&ihost->pdev->dev, "%s: pio request unexpected event %#x\n", __func__, event_code); @@ -1024,7 +1023,7 @@ static enum sci_status ssp_task_request_await_tc_event(struct isci_request *ireq * There is a potential for receiving multiple task responses if * we decide to send the task IU again. */ - dev_warn(scic_to_dev(ireq->owning_controller), + dev_warn(&ireq->owning_controller->pdev->dev, "%s: TaskRequest:0x%p CompletionCode:%x - " "ACK/NAK timeout\n", __func__, ireq, completion_code); @@ -1073,7 +1072,7 @@ smp_request_await_response_tc_event(struct isci_request *ireq, * response within 2 ms. This causes our hardware break * the connection and set TC completion with one of * these SMP_XXX_XX_ERR status. For these type of error, - * we ask scic user to retry the request. + * we ask ihost user to retry the request. */ scic_sds_request_set_status(ireq, SCU_TASK_DONE_SMP_RESP_TO_ERR, SCI_FAILURE_RETRY_REQUIRED); @@ -1451,18 +1450,18 @@ static void scic_sds_stp_request_udma_complete_request( static enum sci_status scic_sds_stp_request_udma_general_frame_handler(struct isci_request *ireq, u32 frame_index) { - struct scic_sds_controller *scic = ireq->owning_controller; + struct isci_host *ihost = ireq->owning_controller; struct dev_to_host_fis *frame_header; enum sci_status status; u32 *frame_buffer; - status = scic_sds_unsolicited_frame_control_get_header(&scic->uf_control, + status = scic_sds_unsolicited_frame_control_get_header(&ihost->uf_control, frame_index, (void **)&frame_header); if ((status == SCI_SUCCESS) && (frame_header->fis_type == FIS_REGD2H)) { - scic_sds_unsolicited_frame_control_get_buffer(&scic->uf_control, + scic_sds_unsolicited_frame_control_get_buffer(&ihost->uf_control, frame_index, (void **)&frame_buffer); @@ -1471,7 +1470,7 @@ static enum sci_status scic_sds_stp_request_udma_general_frame_handler(struct is frame_buffer); } - scic_sds_controller_release_frame(scic, frame_index); + scic_sds_controller_release_frame(ihost, frame_index); return status; } @@ -1480,7 +1479,7 @@ enum sci_status scic_sds_io_request_frame_handler(struct isci_request *ireq, u32 frame_index) { - struct scic_sds_controller *scic = ireq->owning_controller; + struct isci_host *ihost = ireq->owning_controller; struct isci_stp_request *stp_req = &ireq->stp.req; enum sci_base_request_states state; enum sci_status status; @@ -1492,7 +1491,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, struct ssp_frame_hdr ssp_hdr; void *frame_header; - scic_sds_unsolicited_frame_control_get_header(&scic->uf_control, + scic_sds_unsolicited_frame_control_get_header(&ihost->uf_control, frame_index, &frame_header); @@ -1503,7 +1502,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, struct ssp_response_iu *resp_iu; ssize_t word_cnt = SSP_RESP_IU_MAX_SIZE / sizeof(u32); - scic_sds_unsolicited_frame_control_get_buffer(&scic->uf_control, + scic_sds_unsolicited_frame_control_get_buffer(&ihost->uf_control, frame_index, (void **)&resp_iu); @@ -1522,7 +1521,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, SCI_SUCCESS); } else { /* not a response frame, why did it get forwarded? */ - dev_err(scic_to_dev(scic), + dev_err(&ihost->pdev->dev, "%s: SCIC IO Request 0x%p received unexpected " "frame %d type 0x%02x\n", __func__, ireq, frame_index, ssp_hdr.frame_type); @@ -1532,7 +1531,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, * In any case we are done with this frame buffer return it to * the controller */ - scic_sds_controller_release_frame(scic, frame_index); + scic_sds_controller_release_frame(ihost, frame_index); return SCI_SUCCESS; } @@ -1540,14 +1539,14 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, case SCI_REQ_TASK_WAIT_TC_RESP: scic_sds_io_request_copy_response(ireq); sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); - scic_sds_controller_release_frame(scic,frame_index); + scic_sds_controller_release_frame(ihost,frame_index); return SCI_SUCCESS; case SCI_REQ_SMP_WAIT_RESP: { struct smp_resp *rsp_hdr = &ireq->smp.rsp; void *frame_header; - scic_sds_unsolicited_frame_control_get_header(&scic->uf_control, + scic_sds_unsolicited_frame_control_get_header(&ihost->uf_control, frame_index, &frame_header); @@ -1558,7 +1557,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, if (rsp_hdr->frame_type == SMP_RESPONSE) { void *smp_resp; - scic_sds_unsolicited_frame_control_get_buffer(&scic->uf_control, + scic_sds_unsolicited_frame_control_get_buffer(&ihost->uf_control, frame_index, &smp_resp); @@ -1577,7 +1576,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, * This was not a response frame why did it get * forwarded? */ - dev_err(scic_to_dev(scic), + dev_err(&ihost->pdev->dev, "%s: SCIC SMP Request 0x%p received unexpected " "frame %d type 0x%02x\n", __func__, @@ -1592,7 +1591,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); } - scic_sds_controller_release_frame(scic, frame_index); + scic_sds_controller_release_frame(ihost, frame_index); return SCI_SUCCESS; } @@ -1619,12 +1618,12 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, struct dev_to_host_fis *frame_header; u32 *frame_buffer; - status = scic_sds_unsolicited_frame_control_get_header(&scic->uf_control, + status = scic_sds_unsolicited_frame_control_get_header(&ihost->uf_control, frame_index, (void **)&frame_header); if (status != SCI_SUCCESS) { - dev_err(scic_to_dev(scic), + dev_err(&ihost->pdev->dev, "%s: SCIC IO Request 0x%p could not get frame " "header for frame index %d, status %x\n", __func__, @@ -1637,7 +1636,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, switch (frame_header->fis_type) { case FIS_REGD2H: - scic_sds_unsolicited_frame_control_get_buffer(&scic->uf_control, + scic_sds_unsolicited_frame_control_get_buffer(&ihost->uf_control, frame_index, (void **)&frame_buffer); @@ -1651,7 +1650,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, break; default: - dev_warn(scic_to_dev(scic), + dev_warn(&ihost->pdev->dev, "%s: IO Request:0x%p Frame Id:%d protocol " "violation occurred\n", __func__, stp_req, frame_index); @@ -1664,7 +1663,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); /* Frame has been decoded return it to the controller */ - scic_sds_controller_release_frame(scic, frame_index); + scic_sds_controller_release_frame(ihost, frame_index); return status; } @@ -1674,12 +1673,12 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, struct dev_to_host_fis *frame_header; u32 *frame_buffer; - status = scic_sds_unsolicited_frame_control_get_header(&scic->uf_control, + status = scic_sds_unsolicited_frame_control_get_header(&ihost->uf_control, frame_index, (void **)&frame_header); if (status != SCI_SUCCESS) { - dev_err(scic_to_dev(scic), + dev_err(&ihost->pdev->dev, "%s: SCIC IO Request 0x%p could not get frame " "header for frame index %d, status %x\n", __func__, stp_req, frame_index, status); @@ -1689,7 +1688,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, switch (frame_header->fis_type) { case FIS_PIO_SETUP: /* Get from the frame buffer the PIO Setup Data */ - scic_sds_unsolicited_frame_control_get_buffer(&scic->uf_control, + scic_sds_unsolicited_frame_control_get_buffer(&ihost->uf_control, frame_index, (void **)&frame_buffer); @@ -1736,7 +1735,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, * FIS when it is still busy? Do nothing since * we are still in the right state. */ - dev_dbg(scic_to_dev(scic), + dev_dbg(&ihost->pdev->dev, "%s: SCIC PIO Request 0x%p received " "D2H Register FIS with BSY status " "0x%x\n", @@ -1746,7 +1745,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, break; } - scic_sds_unsolicited_frame_control_get_buffer(&scic->uf_control, + scic_sds_unsolicited_frame_control_get_buffer(&ihost->uf_control, frame_index, (void **)&frame_buffer); @@ -1767,7 +1766,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, } /* Frame is decoded return it to the controller */ - scic_sds_controller_release_frame(scic, frame_index); + scic_sds_controller_release_frame(ihost, frame_index); return status; } @@ -1776,12 +1775,12 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, struct dev_to_host_fis *frame_header; struct sata_fis_data *frame_buffer; - status = scic_sds_unsolicited_frame_control_get_header(&scic->uf_control, + status = scic_sds_unsolicited_frame_control_get_header(&ihost->uf_control, frame_index, (void **)&frame_header); if (status != SCI_SUCCESS) { - dev_err(scic_to_dev(scic), + dev_err(&ihost->pdev->dev, "%s: SCIC IO Request 0x%p could not get frame " "header for frame index %d, status %x\n", __func__, @@ -1792,7 +1791,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, } if (frame_header->fis_type != FIS_DATA) { - dev_err(scic_to_dev(scic), + dev_err(&ihost->pdev->dev, "%s: SCIC PIO Request 0x%p received frame %d " "with fis type 0x%02x when expecting a data " "fis.\n", @@ -1808,7 +1807,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); /* Frame is decoded return it to the controller */ - scic_sds_controller_release_frame(scic, frame_index); + scic_sds_controller_release_frame(ihost, frame_index); return status; } @@ -1816,7 +1815,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, ireq->saved_rx_frame_index = frame_index; stp_req->pio_len = 0; } else { - scic_sds_unsolicited_frame_control_get_buffer(&scic->uf_control, + scic_sds_unsolicited_frame_control_get_buffer(&ihost->uf_control, frame_index, (void **)&frame_buffer); @@ -1824,7 +1823,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, (u8 *)frame_buffer); /* Frame is decoded return it to the controller */ - scic_sds_controller_release_frame(scic, frame_index); + scic_sds_controller_release_frame(ihost, frame_index); } /* Check for the end of the transfer, are there more @@ -1849,11 +1848,11 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, struct dev_to_host_fis *frame_header; u32 *frame_buffer; - status = scic_sds_unsolicited_frame_control_get_header(&scic->uf_control, + status = scic_sds_unsolicited_frame_control_get_header(&ihost->uf_control, frame_index, (void **)&frame_header); if (status != SCI_SUCCESS) { - dev_err(scic_to_dev(scic), + dev_err(&ihost->pdev->dev, "%s: SCIC IO Request 0x%p could not get frame " "header for frame index %d, status %x\n", __func__, @@ -1865,7 +1864,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, switch (frame_header->fis_type) { case FIS_REGD2H: - scic_sds_unsolicited_frame_control_get_buffer(&scic->uf_control, + scic_sds_unsolicited_frame_control_get_buffer(&ihost->uf_control, frame_index, (void **)&frame_buffer); @@ -1880,7 +1879,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, break; default: - dev_warn(scic_to_dev(scic), + dev_warn(&ihost->pdev->dev, "%s: IO Request:0x%p Frame Id:%d protocol " "violation occurred\n", __func__, @@ -1896,7 +1895,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); /* Frame has been decoded return it to the controller */ - scic_sds_controller_release_frame(scic, frame_index); + scic_sds_controller_release_frame(ihost, frame_index); return status; } @@ -1905,18 +1904,18 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, * TODO: Is it even possible to get an unsolicited frame in the * aborting state? */ - scic_sds_controller_release_frame(scic, frame_index); + scic_sds_controller_release_frame(ihost, frame_index); return SCI_SUCCESS; default: - dev_warn(scic_to_dev(scic), + dev_warn(&ihost->pdev->dev, "%s: SCIC IO Request given unexpected frame %x while " "in state %d\n", __func__, frame_index, state); - scic_sds_controller_release_frame(scic, frame_index); + scic_sds_controller_release_frame(ihost, frame_index); return SCI_FAILURE_INVALID_STATE; } } @@ -2042,7 +2041,7 @@ scic_sds_io_request_tc_completion(struct isci_request *ireq, u32 completion_code) { enum sci_base_request_states state; - struct scic_sds_controller *scic = ireq->owning_controller; + struct isci_host *ihost = ireq->owning_controller; state = ireq->sm.current_state_id; @@ -2089,7 +2088,7 @@ scic_sds_io_request_tc_completion(struct isci_request *ireq, completion_code); default: - dev_warn(scic_to_dev(scic), + dev_warn(&ihost->pdev->dev, "%s: SCIC IO Request given task completion " "notification %x while in wrong state %d\n", __func__, @@ -2480,7 +2479,7 @@ static void isci_task_save_for_upper_layer_completion( } } -static void isci_request_io_request_complete(struct isci_host *isci_host, +static void isci_request_io_request_complete(struct isci_host *ihost, struct isci_request *request, enum sci_io_status completion_status) { @@ -2495,7 +2494,7 @@ static void isci_request_io_request_complete(struct isci_host *isci_host, enum isci_completion_selection complete_to_host = isci_perform_normal_io_completion; - dev_dbg(&isci_host->pdev->dev, + dev_dbg(&ihost->pdev->dev, "%s: request = %p, task = %p,\n" "task->data_dir = %d completion_status = 0x%x\n", __func__, @@ -2616,7 +2615,7 @@ static void isci_request_io_request_complete(struct isci_host *isci_host, switch (completion_status) { case SCI_IO_FAILURE_RESPONSE_VALID: - dev_dbg(&isci_host->pdev->dev, + dev_dbg(&ihost->pdev->dev, "%s: SCI_IO_FAILURE_RESPONSE_VALID (%p/%p)\n", __func__, request, @@ -2631,17 +2630,17 @@ static void isci_request_io_request_complete(struct isci_host *isci_host, /* crack the iu response buffer. */ resp_iu = &request->ssp.rsp; isci_request_process_response_iu(task, resp_iu, - &isci_host->pdev->dev); + &ihost->pdev->dev); } else if (SAS_PROTOCOL_SMP == task->task_proto) { - dev_err(&isci_host->pdev->dev, + dev_err(&ihost->pdev->dev, "%s: SCI_IO_FAILURE_RESPONSE_VALID: " "SAS_PROTOCOL_SMP protocol\n", __func__); } else - dev_err(&isci_host->pdev->dev, + dev_err(&ihost->pdev->dev, "%s: unknown protocol\n", __func__); /* use the task status set in the task struct by the @@ -2662,7 +2661,7 @@ static void isci_request_io_request_complete(struct isci_host *isci_host, if (task->task_proto == SAS_PROTOCOL_SMP) { void *rsp = &request->smp.rsp; - dev_dbg(&isci_host->pdev->dev, + dev_dbg(&ihost->pdev->dev, "%s: SMP protocol completion\n", __func__); @@ -2687,20 +2686,20 @@ static void isci_request_io_request_complete(struct isci_host *isci_host, if (task->task_status.residual != 0) status = SAS_DATA_UNDERRUN; - dev_dbg(&isci_host->pdev->dev, + dev_dbg(&ihost->pdev->dev, "%s: SCI_IO_SUCCESS_IO_DONE_EARLY %d\n", __func__, status); } else - dev_dbg(&isci_host->pdev->dev, + dev_dbg(&ihost->pdev->dev, "%s: SCI_IO_SUCCESS\n", __func__); break; case SCI_IO_FAILURE_TERMINATED: - dev_dbg(&isci_host->pdev->dev, + dev_dbg(&ihost->pdev->dev, "%s: SCI_IO_FAILURE_TERMINATED (%p/%p)\n", __func__, request, @@ -2768,7 +2767,7 @@ static void isci_request_io_request_complete(struct isci_host *isci_host, default: /* Catch any otherwise unhandled error codes here. */ - dev_warn(&isci_host->pdev->dev, + dev_warn(&ihost->pdev->dev, "%s: invalid completion code: 0x%x - " "isci_request = %p\n", __func__, completion_status, request); @@ -2802,11 +2801,11 @@ static void isci_request_io_request_complete(struct isci_host *isci_host, break; if (task->num_scatter == 0) /* 0 indicates a single dma address */ - dma_unmap_single(&isci_host->pdev->dev, + dma_unmap_single(&ihost->pdev->dev, request->zero_scatter_daddr, task->total_xfer_len, task->data_dir); else /* unmap the sgl dma addresses */ - dma_unmap_sg(&isci_host->pdev->dev, task->scatter, + dma_unmap_sg(&ihost->pdev->dev, task->scatter, request->num_sg_entries, task->data_dir); break; case SAS_PROTOCOL_SMP: { @@ -2814,7 +2813,7 @@ static void isci_request_io_request_complete(struct isci_host *isci_host, struct smp_req *smp_req; void *kaddr; - dma_unmap_sg(&isci_host->pdev->dev, sg, 1, DMA_TO_DEVICE); + dma_unmap_sg(&ihost->pdev->dev, sg, 1, DMA_TO_DEVICE); /* need to swab it back in case the command buffer is re-used */ kaddr = kmap_atomic(sg_page(sg), KM_IRQ0); @@ -2828,14 +2827,12 @@ static void isci_request_io_request_complete(struct isci_host *isci_host, } /* Put the completed request on the correct list */ - isci_task_save_for_upper_layer_completion(isci_host, request, response, + isci_task_save_for_upper_layer_completion(ihost, request, response, status, complete_to_host ); /* complete the io request to the core. */ - scic_controller_complete_io(&isci_host->sci, - request->target_device, - request); + scic_controller_complete_io(ihost, request->target_device, request); isci_put_device(idev); /* set terminated handle so it cannot be completed or @@ -2885,8 +2882,7 @@ static void scic_sds_request_started_state_enter(struct sci_base_state_machine * static void scic_sds_request_completed_state_enter(struct sci_base_state_machine *sm) { struct isci_request *ireq = container_of(sm, typeof(*ireq), sm); - struct scic_sds_controller *scic = ireq->owning_controller; - struct isci_host *ihost = scic_to_ihost(scic); + struct isci_host *ihost = ireq->owning_controller; /* Tell the SCI_USER that the IO request is complete */ if (!test_bit(IREQ_TMF, &ireq->flags)) @@ -2985,7 +2981,7 @@ static const struct sci_base_state scic_sds_request_state_table[] = { }; static void -scic_sds_general_request_construct(struct scic_sds_controller *scic, +scic_sds_general_request_construct(struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq) { @@ -3001,7 +2997,7 @@ scic_sds_general_request_construct(struct scic_sds_controller *scic, } static enum sci_status -scic_io_request_construct(struct scic_sds_controller *scic, +scic_io_request_construct(struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq) { @@ -3009,7 +3005,7 @@ scic_io_request_construct(struct scic_sds_controller *scic, enum sci_status status = SCI_SUCCESS; /* Build the common part of the request */ - scic_sds_general_request_construct(scic, idev, ireq); + scic_sds_general_request_construct(ihost, idev, ireq); if (idev->rnc.remote_node_index == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) return SCI_FAILURE_INVALID_REMOTE_DEVICE; @@ -3028,7 +3024,7 @@ scic_io_request_construct(struct scic_sds_controller *scic, return status; } -enum sci_status scic_task_request_construct(struct scic_sds_controller *scic, +enum sci_status scic_task_request_construct(struct isci_host *ihost, struct isci_remote_device *idev, u16 io_tag, struct isci_request *ireq) { @@ -3036,7 +3032,7 @@ enum sci_status scic_task_request_construct(struct scic_sds_controller *scic, enum sci_status status = SCI_SUCCESS; /* Build the common part of the request */ - scic_sds_general_request_construct(scic, idev, ireq); + scic_sds_general_request_construct(ihost, idev, ireq); if (dev->dev_type == SAS_END_DEV || dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) { @@ -3156,7 +3152,7 @@ scic_io_request_construct_smp(struct device *dev, task_context->initiator_request = 1; task_context->connection_rate = idev->connection_rate; task_context->protocol_engine_index = - scic_sds_controller_get_protocol_engine_group(scic); + scic_sds_controller_get_protocol_engine_group(ihost); task_context->logical_port_index = scic_sds_port_get_index(iport); task_context->protocol_type = SCU_TASK_CONTEXT_PROTOCOL_SMP; task_context->abort = 0; @@ -3199,7 +3195,7 @@ scic_io_request_construct_smp(struct device *dev, task_context->task_phase = 0; ireq->post_context = (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | - (scic_sds_controller_get_protocol_engine_group(scic) << + (scic_sds_controller_get_protocol_engine_group(ihost) << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | (scic_sds_port_get_index(iport) << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | @@ -3245,7 +3241,7 @@ static enum sci_status isci_smp_request_build(struct isci_request *ireq) /** * isci_io_request_build() - This function builds the io request object. - * @isci_host: This parameter specifies the ISCI host object + * @ihost: This parameter specifies the ISCI host object * @request: This parameter points to the isci_request object allocated in the * request construct function. * @sci_device: This parameter is the handle for the sci core's remote device @@ -3253,14 +3249,14 @@ static enum sci_status isci_smp_request_build(struct isci_request *ireq) * * SCI_SUCCESS on successfull completion, or specific failure code. */ -static enum sci_status isci_io_request_build(struct isci_host *isci_host, +static enum sci_status isci_io_request_build(struct isci_host *ihost, struct isci_request *request, struct isci_remote_device *idev) { enum sci_status status = SCI_SUCCESS; struct sas_task *task = isci_request_access_task(request); - dev_dbg(&isci_host->pdev->dev, + dev_dbg(&ihost->pdev->dev, "%s: idev = 0x%p; request = %p, " "num_scatter = %d\n", __func__, @@ -3277,7 +3273,7 @@ static enum sci_status isci_io_request_build(struct isci_host *isci_host, !(SAS_PROTOCOL_SMP & task->task_proto)) { request->num_sg_entries = dma_map_sg( - &isci_host->pdev->dev, + &ihost->pdev->dev, task->scatter, task->num_scatter, task->data_dir @@ -3287,10 +3283,10 @@ static enum sci_status isci_io_request_build(struct isci_host *isci_host, return SCI_FAILURE_INSUFFICIENT_RESOURCES; } - status = scic_io_request_construct(&isci_host->sci, idev, request); + status = scic_io_request_construct(ihost, idev, request); if (status != SCI_SUCCESS) { - dev_warn(&isci_host->pdev->dev, + dev_warn(&ihost->pdev->dev, "%s: failed request construct\n", __func__); return SCI_FAILURE; @@ -3309,7 +3305,7 @@ static enum sci_status isci_io_request_build(struct isci_host *isci_host, status = isci_request_stp_request_construct(request); break; default: - dev_warn(&isci_host->pdev->dev, + dev_warn(&ihost->pdev->dev, "%s: unknown protocol\n", __func__); return SCI_FAILURE; } @@ -3392,7 +3388,7 @@ int isci_request_execute(struct isci_host *ihost, struct isci_remote_device *ide * request was built that way (ie. * ireq->is_task_management_request is false). */ - status = scic_controller_start_task(&ihost->sci, + status = scic_controller_start_task(ihost, idev, ireq); } else { @@ -3400,7 +3396,7 @@ int isci_request_execute(struct isci_host *ihost, struct isci_remote_device *ide } } else { /* send the request, let the core assign the IO TAG. */ - status = scic_controller_start_io(&ihost->sci, idev, + status = scic_controller_start_io(ihost, idev, ireq); } diff --git a/drivers/scsi/isci/request.h b/drivers/scsi/isci/request.h index ca64ea207ac..0cafcead7a0 100644 --- a/drivers/scsi/isci/request.h +++ b/drivers/scsi/isci/request.h @@ -145,7 +145,7 @@ struct isci_request { */ struct completion *io_request_completion; struct sci_base_state_machine sm; - struct scic_sds_controller *owning_controller; + struct isci_host *owning_controller; struct isci_remote_device *target_device; u16 io_tag; enum sci_request_protocol protocol; @@ -500,7 +500,7 @@ int isci_request_execute(struct isci_host *ihost, struct isci_remote_device *ide void isci_terminate_pending_requests(struct isci_host *ihost, struct isci_remote_device *idev); enum sci_status -scic_task_request_construct(struct scic_sds_controller *scic, +scic_task_request_construct(struct isci_host *ihost, struct isci_remote_device *idev, u16 io_tag, struct isci_request *ireq); diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index 89b01eef44b..3a1fc55a755 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -257,7 +257,7 @@ static struct isci_request *isci_task_request_build(struct isci_host *ihost, return NULL; /* let the core do it's construct. */ - status = scic_task_request_construct(&ihost->sci, idev, tag, + status = scic_task_request_construct(ihost, idev, tag, ireq); if (status != SCI_SUCCESS) { @@ -332,7 +332,7 @@ int isci_task_execute_tmf(struct isci_host *ihost, spin_lock_irqsave(&ihost->scic_lock, flags); /* start the TMF io. */ - status = scic_controller_start_task(&ihost->sci, idev, ireq); + status = scic_controller_start_task(ihost, idev, ireq); if (status != SCI_TASK_SUCCESS) { dev_warn(&ihost->pdev->dev, @@ -364,7 +364,7 @@ int isci_task_execute_tmf(struct isci_host *ihost, if (tmf->cb_state_func != NULL) tmf->cb_state_func(isci_tmf_timed_out, tmf, tmf->cb_data); - scic_controller_terminate_request(&ihost->sci, + scic_controller_terminate_request(ihost, idev, ireq); @@ -514,15 +514,14 @@ static void isci_request_cleanup_completed_loiterer( * request, and wait for it to complete. This function must only be called * from a thread that can wait. Note that the request is terminated and * completed (back to the host, if started there). - * @isci_host: This SCU. + * @ihost: This SCU. * @idev: The target. * @isci_request: The I/O request to be terminated. * */ -static void isci_terminate_request_core( - struct isci_host *isci_host, - struct isci_remote_device *idev, - struct isci_request *isci_request) +static void isci_terminate_request_core(struct isci_host *ihost, + struct isci_remote_device *idev, + struct isci_request *isci_request) { enum sci_status status = SCI_SUCCESS; bool was_terminated = false; @@ -533,11 +532,11 @@ static void isci_terminate_request_core( struct completion *io_request_completion; struct sas_task *task; - dev_dbg(&isci_host->pdev->dev, + dev_dbg(&ihost->pdev->dev, "%s: device = %p; request = %p\n", __func__, idev, isci_request); - spin_lock_irqsave(&isci_host->scic_lock, flags); + spin_lock_irqsave(&ihost->scic_lock, flags); io_request_completion = isci_request->io_request_completion; @@ -557,12 +556,11 @@ static void isci_terminate_request_core( if (!test_bit(IREQ_TERMINATED, &isci_request->flags)) { was_terminated = true; needs_cleanup_handling = true; - status = scic_controller_terminate_request( - &isci_host->sci, - idev, - isci_request); + status = scic_controller_terminate_request(ihost, + idev, + isci_request); } - spin_unlock_irqrestore(&isci_host->scic_lock, flags); + spin_unlock_irqrestore(&ihost->scic_lock, flags); /* * The only time the request to terminate will @@ -570,7 +568,7 @@ static void isci_terminate_request_core( * being aborted. */ if (status != SCI_SUCCESS) { - dev_err(&isci_host->pdev->dev, + dev_err(&ihost->pdev->dev, "%s: scic_controller_terminate_request" " returned = 0x%x\n", __func__, status); @@ -579,7 +577,7 @@ static void isci_terminate_request_core( } else { if (was_terminated) { - dev_dbg(&isci_host->pdev->dev, + dev_dbg(&ihost->pdev->dev, "%s: before completion wait (%p/%p)\n", __func__, isci_request, io_request_completion); @@ -593,7 +591,7 @@ static void isci_terminate_request_core( if (!termination_completed) { /* The request to terminate has timed out. */ - spin_lock_irqsave(&isci_host->scic_lock, + spin_lock_irqsave(&ihost->scic_lock, flags); /* Check for state changes. */ @@ -623,12 +621,12 @@ static void isci_terminate_request_core( } else termination_completed = 1; - spin_unlock_irqrestore(&isci_host->scic_lock, + spin_unlock_irqrestore(&ihost->scic_lock, flags); if (!termination_completed) { - dev_err(&isci_host->pdev->dev, + dev_err(&ihost->pdev->dev, "%s: *** Timeout waiting for " "termination(%p/%p)\n", __func__, io_request_completion, @@ -642,7 +640,7 @@ static void isci_terminate_request_core( } } if (termination_completed) - dev_dbg(&isci_host->pdev->dev, + dev_dbg(&ihost->pdev->dev, "%s: after completion wait (%p/%p)\n", __func__, isci_request, io_request_completion); } @@ -678,7 +676,7 @@ static void isci_terminate_request_core( } if (needs_cleanup_handling) isci_request_cleanup_completed_loiterer( - isci_host, idev, isci_request, task); + ihost, idev, isci_request, task); } } @@ -1253,7 +1251,7 @@ isci_task_request_complete(struct isci_host *ihost, /* PRINT_TMF( ((struct isci_tmf *)request->task)); */ tmf_complete = tmf->complete; - scic_controller_complete_io(&ihost->sci, ireq->target_device, ireq); + scic_controller_complete_io(ihost, ireq->target_device, ireq); /* set the 'terminated' flag handle to make sure it cannot be terminated * or completed again. */ diff --git a/drivers/scsi/isci/unsolicited_frame_control.c b/drivers/scsi/isci/unsolicited_frame_control.c index 680582d8cde..a0e6f89fc6a 100644 --- a/drivers/scsi/isci/unsolicited_frame_control.c +++ b/drivers/scsi/isci/unsolicited_frame_control.c @@ -57,9 +57,9 @@ #include "unsolicited_frame_control.h" #include "registers.h" -int scic_sds_unsolicited_frame_control_construct(struct scic_sds_controller *scic) +int scic_sds_unsolicited_frame_control_construct(struct isci_host *ihost) { - struct scic_sds_unsolicited_frame_control *uf_control = &scic->uf_control; + struct scic_sds_unsolicited_frame_control *uf_control = &ihost->uf_control; struct scic_sds_unsolicited_frame *uf; u32 buf_len, header_len, i; dma_addr_t dma; @@ -79,7 +79,7 @@ int scic_sds_unsolicited_frame_control_construct(struct scic_sds_controller *sci * memory descriptor entry. The headers and address table will be * placed after the buffers. */ - virt = dmam_alloc_coherent(scic_to_dev(scic), size, &dma, GFP_KERNEL); + virt = dmam_alloc_coherent(&ihost->pdev->dev, size, &dma, GFP_KERNEL); if (!virt) return -ENOMEM; diff --git a/drivers/scsi/isci/unsolicited_frame_control.h b/drivers/scsi/isci/unsolicited_frame_control.h index 2954904f025..c0285a3db56 100644 --- a/drivers/scsi/isci/unsolicited_frame_control.h +++ b/drivers/scsi/isci/unsolicited_frame_control.h @@ -214,9 +214,9 @@ struct scic_sds_unsolicited_frame_control { }; -struct scic_sds_controller; +struct isci_host; -int scic_sds_unsolicited_frame_control_construct(struct scic_sds_controller *scic); +int scic_sds_unsolicited_frame_control_construct(struct isci_host *ihost); enum sci_status scic_sds_unsolicited_frame_control_get_header( struct scic_sds_unsolicited_frame_control *uf_control, -- cgit v1.2.3-70-g09d2 From 89a7301f21fb00e753089671eb9e4132aab8ea08 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 30 Jun 2011 19:14:33 -0700 Subject: isci: retire scic_sds_ and scic_ prefixes The distinction between scic_sds_ scic_ and sci_ are no longer relevant so just unify the prefixes on sci_. The distinction between isci_ and sci_ is historically significant, and useful for comparing the old 'core' to the current Linux driver. 'sci_' represents the former core as well as the routines that are closer to the hardware and protocol than their 'isci_' brethren. sci == sas controller interface. Also unwind the 'sds1' out of the parameter structs. Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/host.c | 742 ++++++++++---------------- drivers/scsi/isci/host.h | 93 ++-- drivers/scsi/isci/init.c | 4 +- drivers/scsi/isci/isci.h | 6 +- drivers/scsi/isci/phy.c | 385 ++++++------- drivers/scsi/isci/phy.h | 70 +-- drivers/scsi/isci/port.c | 551 +++++++------------ drivers/scsi/isci/port.h | 68 ++- drivers/scsi/isci/port_config.c | 132 ++--- drivers/scsi/isci/probe_roms.c | 16 +- drivers/scsi/isci/probe_roms.h | 38 +- drivers/scsi/isci/remote_device.c | 300 +++++------ drivers/scsi/isci/remote_device.h | 90 ++-- drivers/scsi/isci/remote_node_context.c | 198 ++++--- drivers/scsi/isci/remote_node_context.h | 30 +- drivers/scsi/isci/remote_node_table.c | 114 ++-- drivers/scsi/isci/remote_node_table.h | 16 +- drivers/scsi/isci/request.c | 360 ++++++------- drivers/scsi/isci/request.h | 52 +- drivers/scsi/isci/sata.c | 4 +- drivers/scsi/isci/task.c | 24 +- drivers/scsi/isci/unsolicited_frame_control.c | 57 +- drivers/scsi/isci/unsolicited_frame_control.h | 42 +- 23 files changed, 1449 insertions(+), 1943 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index bb298f8f609..f31f64e4b71 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -180,8 +180,7 @@ void sci_change_state(struct sci_base_state_machine *sm, u32 next_state) handler(sm); } -static bool scic_sds_controller_completion_queue_has_entries( - struct isci_host *ihost) +static bool sci_controller_completion_queue_has_entries(struct isci_host *ihost) { u32 get_value = ihost->completion_queue_get; u32 get_index = get_value & SMU_COMPLETION_QUEUE_GET_POINTER_MASK; @@ -193,9 +192,9 @@ static bool scic_sds_controller_completion_queue_has_entries( return false; } -static bool scic_sds_controller_isr(struct isci_host *ihost) +static bool sci_controller_isr(struct isci_host *ihost) { - if (scic_sds_controller_completion_queue_has_entries(ihost)) { + if (sci_controller_completion_queue_has_entries(ihost)) { return true; } else { /* @@ -219,13 +218,13 @@ irqreturn_t isci_msix_isr(int vec, void *data) { struct isci_host *ihost = data; - if (scic_sds_controller_isr(ihost)) + if (sci_controller_isr(ihost)) tasklet_schedule(&ihost->completion_tasklet); return IRQ_HANDLED; } -static bool scic_sds_controller_error_isr(struct isci_host *ihost) +static bool sci_controller_error_isr(struct isci_host *ihost) { u32 interrupt_status; @@ -252,35 +251,35 @@ static bool scic_sds_controller_error_isr(struct isci_host *ihost) return false; } -static void scic_sds_controller_task_completion(struct isci_host *ihost, - u32 completion_entry) +static void sci_controller_task_completion(struct isci_host *ihost, u32 ent) { - u32 index = SCU_GET_COMPLETION_INDEX(completion_entry); + u32 index = SCU_GET_COMPLETION_INDEX(ent); struct isci_request *ireq = ihost->reqs[index]; /* Make sure that we really want to process this IO request */ if (test_bit(IREQ_ACTIVE, &ireq->flags) && ireq->io_tag != SCI_CONTROLLER_INVALID_IO_TAG && ISCI_TAG_SEQ(ireq->io_tag) == ihost->io_request_sequence[index]) - /* Yep this is a valid io request pass it along to the io request handler */ - scic_sds_io_request_tc_completion(ireq, completion_entry); + /* Yep this is a valid io request pass it along to the + * io request handler + */ + sci_io_request_tc_completion(ireq, ent); } -static void scic_sds_controller_sdma_completion(struct isci_host *ihost, - u32 completion_entry) +static void sci_controller_sdma_completion(struct isci_host *ihost, u32 ent) { u32 index; struct isci_request *ireq; struct isci_remote_device *idev; - index = SCU_GET_COMPLETION_INDEX(completion_entry); + index = SCU_GET_COMPLETION_INDEX(ent); - switch (scu_get_command_request_type(completion_entry)) { + switch (scu_get_command_request_type(ent)) { case SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC: case SCU_CONTEXT_COMMAND_REQUEST_TYPE_DUMP_TC: ireq = ihost->reqs[index]; dev_warn(&ihost->pdev->dev, "%s: %x for io request %p\n", - __func__, completion_entry, ireq); + __func__, ent, ireq); /* @todo For a post TC operation we need to fail the IO * request */ @@ -290,20 +289,19 @@ static void scic_sds_controller_sdma_completion(struct isci_host *ihost, case SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_RNC: idev = ihost->device_table[index]; dev_warn(&ihost->pdev->dev, "%s: %x for device %p\n", - __func__, completion_entry, idev); + __func__, ent, idev); /* @todo For a port RNC operation we need to fail the * device */ break; default: dev_warn(&ihost->pdev->dev, "%s: unknown completion type %x\n", - __func__, completion_entry); + __func__, ent); break; } } -static void scic_sds_controller_unsolicited_frame(struct isci_host *ihost, - u32 completion_entry) +static void sci_controller_unsolicited_frame(struct isci_host *ihost, u32 ent) { u32 index; u32 frame_index; @@ -314,36 +312,36 @@ static void scic_sds_controller_unsolicited_frame(struct isci_host *ihost, enum sci_status result = SCI_FAILURE; - frame_index = SCU_GET_FRAME_INDEX(completion_entry); + frame_index = SCU_GET_FRAME_INDEX(ent); frame_header = ihost->uf_control.buffers.array[frame_index].header; ihost->uf_control.buffers.array[frame_index].state = UNSOLICITED_FRAME_IN_USE; - if (SCU_GET_FRAME_ERROR(completion_entry)) { + if (SCU_GET_FRAME_ERROR(ent)) { /* * / @todo If the IAF frame or SIGNATURE FIS frame has an error will * / this cause a problem? We expect the phy initialization will * / fail if there is an error in the frame. */ - scic_sds_controller_release_frame(ihost, frame_index); + sci_controller_release_frame(ihost, frame_index); return; } if (frame_header->is_address_frame) { - index = SCU_GET_PROTOCOL_ENGINE_INDEX(completion_entry); + index = SCU_GET_PROTOCOL_ENGINE_INDEX(ent); iphy = &ihost->phys[index]; - result = scic_sds_phy_frame_handler(iphy, frame_index); + result = sci_phy_frame_handler(iphy, frame_index); } else { - index = SCU_GET_COMPLETION_INDEX(completion_entry); + index = SCU_GET_COMPLETION_INDEX(ent); if (index == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) { /* * This is a signature fis or a frame from a direct attached SATA * device that has not yet been created. In either case forwared * the frame to the PE and let it take care of the frame data. */ - index = SCU_GET_PROTOCOL_ENGINE_INDEX(completion_entry); + index = SCU_GET_PROTOCOL_ENGINE_INDEX(ent); iphy = &ihost->phys[index]; - result = scic_sds_phy_frame_handler(iphy, frame_index); + result = sci_phy_frame_handler(iphy, frame_index); } else { if (index < ihost->remote_node_entries) idev = ihost->device_table[index]; @@ -351,9 +349,9 @@ static void scic_sds_controller_unsolicited_frame(struct isci_host *ihost, idev = NULL; if (idev != NULL) - result = scic_sds_remote_device_frame_handler(idev, frame_index); + result = sci_remote_device_frame_handler(idev, frame_index); else - scic_sds_controller_release_frame(ihost, frame_index); + sci_controller_release_frame(ihost, frame_index); } } @@ -364,17 +362,16 @@ static void scic_sds_controller_unsolicited_frame(struct isci_host *ihost, } } -static void scic_sds_controller_event_completion(struct isci_host *ihost, - u32 completion_entry) +static void sci_controller_event_completion(struct isci_host *ihost, u32 ent) { struct isci_remote_device *idev; struct isci_request *ireq; struct isci_phy *iphy; u32 index; - index = SCU_GET_COMPLETION_INDEX(completion_entry); + index = SCU_GET_COMPLETION_INDEX(ent); - switch (scu_get_event_type(completion_entry)) { + switch (scu_get_event_type(ent)) { case SCU_EVENT_TYPE_SMU_COMMAND_ERROR: /* / @todo The driver did something wrong and we need to fix the condtion. */ dev_err(&ihost->pdev->dev, @@ -382,7 +379,7 @@ static void scic_sds_controller_event_completion(struct isci_host *ihost, "0x%x\n", __func__, ihost, - completion_entry); + ent); break; case SCU_EVENT_TYPE_SMU_PCQ_ERROR: @@ -396,21 +393,21 @@ static void scic_sds_controller_event_completion(struct isci_host *ihost, "event 0x%x\n", __func__, ihost, - completion_entry); + ent); break; case SCU_EVENT_TYPE_TRANSPORT_ERROR: ireq = ihost->reqs[index]; - scic_sds_io_request_event_handler(ireq, completion_entry); + sci_io_request_event_handler(ireq, ent); break; case SCU_EVENT_TYPE_PTX_SCHEDULE_EVENT: - switch (scu_get_event_specifier(completion_entry)) { + switch (scu_get_event_specifier(ent)) { case SCU_EVENT_SPECIFIC_SMP_RESPONSE_NO_PE: case SCU_EVENT_SPECIFIC_TASK_TIMEOUT: ireq = ihost->reqs[index]; if (ireq != NULL) - scic_sds_io_request_event_handler(ireq, completion_entry); + sci_io_request_event_handler(ireq, ent); else dev_warn(&ihost->pdev->dev, "%s: SCIC Controller 0x%p received " @@ -418,14 +415,14 @@ static void scic_sds_controller_event_completion(struct isci_host *ihost, "that doesnt exist.\n", __func__, ihost, - completion_entry); + ent); break; case SCU_EVENT_SPECIFIC_IT_NEXUS_TIMEOUT: idev = ihost->device_table[index]; if (idev != NULL) - scic_sds_remote_device_event_handler(idev, completion_entry); + sci_remote_device_event_handler(idev, ent); else dev_warn(&ihost->pdev->dev, "%s: SCIC Controller 0x%p received " @@ -433,7 +430,7 @@ static void scic_sds_controller_event_completion(struct isci_host *ihost, "that doesnt exist.\n", __func__, ihost, - completion_entry); + ent); break; } @@ -448,9 +445,9 @@ static void scic_sds_controller_event_completion(struct isci_host *ihost, * direct error counter event to the phy object since that is where * we get the event notification. This is a type 4 event. */ case SCU_EVENT_TYPE_OSSP_EVENT: - index = SCU_GET_PROTOCOL_ENGINE_INDEX(completion_entry); + index = SCU_GET_PROTOCOL_ENGINE_INDEX(ent); iphy = &ihost->phys[index]; - scic_sds_phy_event_handler(iphy, completion_entry); + sci_phy_event_handler(iphy, ent); break; case SCU_EVENT_TYPE_RNC_SUSPEND_TX: @@ -460,7 +457,7 @@ static void scic_sds_controller_event_completion(struct isci_host *ihost, idev = ihost->device_table[index]; if (idev != NULL) - scic_sds_remote_device_event_handler(idev, completion_entry); + sci_remote_device_event_handler(idev, ent); } else dev_err(&ihost->pdev->dev, "%s: SCIC Controller 0x%p received event 0x%x " @@ -468,7 +465,7 @@ static void scic_sds_controller_event_completion(struct isci_host *ihost, "exist.\n", __func__, ihost, - completion_entry, + ent, index); break; @@ -477,15 +474,15 @@ static void scic_sds_controller_event_completion(struct isci_host *ihost, dev_warn(&ihost->pdev->dev, "%s: SCIC Controller received unknown event code %x\n", __func__, - completion_entry); + ent); break; } } -static void scic_sds_controller_process_completions(struct isci_host *ihost) +static void sci_controller_process_completions(struct isci_host *ihost) { u32 completion_count = 0; - u32 completion_entry; + u32 ent; u32 get_index; u32 get_cycle; u32 event_get; @@ -509,7 +506,7 @@ static void scic_sds_controller_process_completions(struct isci_host *ihost) ) { completion_count++; - completion_entry = ihost->completion_queue[get_index]; + ent = ihost->completion_queue[get_index]; /* increment the get pointer and check for rollover to toggle the cycle bit */ get_cycle ^= ((get_index+1) & SCU_MAX_COMPLETION_QUEUE_ENTRIES) << @@ -519,19 +516,19 @@ static void scic_sds_controller_process_completions(struct isci_host *ihost) dev_dbg(&ihost->pdev->dev, "%s: completion queue entry:0x%08x\n", __func__, - completion_entry); + ent); - switch (SCU_GET_COMPLETION_TYPE(completion_entry)) { + switch (SCU_GET_COMPLETION_TYPE(ent)) { case SCU_COMPLETION_TYPE_TASK: - scic_sds_controller_task_completion(ihost, completion_entry); + sci_controller_task_completion(ihost, ent); break; case SCU_COMPLETION_TYPE_SDMA: - scic_sds_controller_sdma_completion(ihost, completion_entry); + sci_controller_sdma_completion(ihost, ent); break; case SCU_COMPLETION_TYPE_UFI: - scic_sds_controller_unsolicited_frame(ihost, completion_entry); + sci_controller_unsolicited_frame(ihost, ent); break; case SCU_COMPLETION_TYPE_EVENT: @@ -540,7 +537,7 @@ static void scic_sds_controller_process_completions(struct isci_host *ihost) (SMU_COMPLETION_QUEUE_GET_EVENT_CYCLE_BIT_SHIFT - SCU_MAX_EVENTS_SHIFT); event_get = (event_get+1) & (SCU_MAX_EVENTS-1); - scic_sds_controller_event_completion(ihost, completion_entry); + sci_controller_event_completion(ihost, ent); break; } default: @@ -548,7 +545,7 @@ static void scic_sds_controller_process_completions(struct isci_host *ihost) "%s: SCIC Controller received unknown " "completion type %x\n", __func__, - completion_entry); + ent); break; } } @@ -575,7 +572,7 @@ static void scic_sds_controller_process_completions(struct isci_host *ihost) } -static void scic_sds_controller_error_handler(struct isci_host *ihost) +static void sci_controller_error_handler(struct isci_host *ihost) { u32 interrupt_status; @@ -583,9 +580,9 @@ static void scic_sds_controller_error_handler(struct isci_host *ihost) readl(&ihost->smu_registers->interrupt_status); if ((interrupt_status & SMU_ISR_QUEUE_SUSPEND) && - scic_sds_controller_completion_queue_has_entries(ihost)) { + sci_controller_completion_queue_has_entries(ihost)) { - scic_sds_controller_process_completions(ihost); + sci_controller_process_completions(ihost); writel(SMU_ISR_QUEUE_SUSPEND, &ihost->smu_registers->interrupt_status); } else { dev_err(&ihost->pdev->dev, "%s: status: %#x\n", __func__, @@ -607,13 +604,13 @@ irqreturn_t isci_intx_isr(int vec, void *data) irqreturn_t ret = IRQ_NONE; struct isci_host *ihost = data; - if (scic_sds_controller_isr(ihost)) { + if (sci_controller_isr(ihost)) { writel(SMU_ISR_COMPLETION, &ihost->smu_registers->interrupt_status); tasklet_schedule(&ihost->completion_tasklet); ret = IRQ_HANDLED; - } else if (scic_sds_controller_error_isr(ihost)) { + } else if (sci_controller_error_isr(ihost)) { spin_lock(&ihost->scic_lock); - scic_sds_controller_error_handler(ihost); + sci_controller_error_handler(ihost); spin_unlock(&ihost->scic_lock); ret = IRQ_HANDLED; } @@ -625,8 +622,8 @@ irqreturn_t isci_error_isr(int vec, void *data) { struct isci_host *ihost = data; - if (scic_sds_controller_error_isr(ihost)) - scic_sds_controller_error_handler(ihost); + if (sci_controller_error_isr(ihost)) + sci_controller_error_handler(ihost); return IRQ_HANDLED; } @@ -670,8 +667,8 @@ int isci_host_scan_finished(struct Scsi_Host *shost, unsigned long time) } /** - * scic_controller_get_suggested_start_timeout() - This method returns the - * suggested scic_controller_start() timeout amount. The user is free to + * sci_controller_get_suggested_start_timeout() - This method returns the + * suggested sci_controller_start() timeout amount. The user is free to * use any timeout value, but this method provides the suggested minimum * start timeout value. The returned value is based upon empirical * information determined as a result of interoperability testing. @@ -681,7 +678,7 @@ int isci_host_scan_finished(struct Scsi_Host *shost, unsigned long time) * This method returns the number of milliseconds for the suggested start * operation timeout. */ -static u32 scic_controller_get_suggested_start_timeout(struct isci_host *ihost) +static u32 sci_controller_get_suggested_start_timeout(struct isci_host *ihost) { /* Validate the user supplied parameters. */ if (!ihost) @@ -706,19 +703,19 @@ static u32 scic_controller_get_suggested_start_timeout(struct isci_host *ihost) + ((SCI_MAX_PHYS - 1) * SCIC_SDS_CONTROLLER_POWER_CONTROL_INTERVAL); } -static void scic_controller_enable_interrupts(struct isci_host *ihost) +static void sci_controller_enable_interrupts(struct isci_host *ihost) { BUG_ON(ihost->smu_registers == NULL); writel(0, &ihost->smu_registers->interrupt_mask); } -void scic_controller_disable_interrupts(struct isci_host *ihost) +void sci_controller_disable_interrupts(struct isci_host *ihost) { BUG_ON(ihost->smu_registers == NULL); writel(0xffffffff, &ihost->smu_registers->interrupt_mask); } -static void scic_sds_controller_enable_port_task_scheduler(struct isci_host *ihost) +static void sci_controller_enable_port_task_scheduler(struct isci_host *ihost) { u32 port_task_scheduler_value; @@ -731,7 +728,7 @@ static void scic_sds_controller_enable_port_task_scheduler(struct isci_host *iho &ihost->scu_registers->peg0.ptsg.control); } -static void scic_sds_controller_assign_task_entries(struct isci_host *ihost) +static void sci_controller_assign_task_entries(struct isci_host *ihost) { u32 task_assignment; @@ -752,7 +749,7 @@ static void scic_sds_controller_assign_task_entries(struct isci_host *ihost) } -static void scic_sds_controller_initialize_completion_queue(struct isci_host *ihost) +static void sci_controller_initialize_completion_queue(struct isci_host *ihost) { u32 index; u32 completion_queue_control_value; @@ -799,7 +796,7 @@ static void scic_sds_controller_initialize_completion_queue(struct isci_host *ih } } -static void scic_sds_controller_initialize_unsolicited_frame_queue(struct isci_host *ihost) +static void sci_controller_initialize_unsolicited_frame_queue(struct isci_host *ihost) { u32 frame_queue_control_value; u32 frame_queue_get_value; @@ -826,22 +823,8 @@ static void scic_sds_controller_initialize_unsolicited_frame_queue(struct isci_h &ihost->scu_registers->sdma.unsolicited_frame_put_pointer); } -/** - * This method will attempt to transition into the ready state for the - * controller and indicate that the controller start operation has completed - * if all criteria are met. - * @scic: This parameter indicates the controller object for which - * to transition to ready. - * @status: This parameter indicates the status value to be pass into the call - * to scic_cb_controller_start_complete(). - * - * none. - */ -static void scic_sds_controller_transition_to_ready( - struct isci_host *ihost, - enum sci_status status) +static void sci_controller_transition_to_ready(struct isci_host *ihost, enum sci_status status) { - if (ihost->sm.current_state_id == SCIC_STARTING) { /* * We move into the ready state, because some of the phys/ports @@ -855,7 +838,7 @@ static void scic_sds_controller_transition_to_ready( static bool is_phy_starting(struct isci_phy *iphy) { - enum scic_sds_phy_states state; + enum sci_phy_states state; state = iphy->sm.current_state_id; switch (state) { @@ -876,16 +859,16 @@ static bool is_phy_starting(struct isci_phy *iphy) } /** - * scic_sds_controller_start_next_phy - start phy + * sci_controller_start_next_phy - start phy * @scic: controller * * If all the phys have been started, then attempt to transition the * controller to the READY state and inform the user - * (scic_cb_controller_start_complete()). + * (sci_cb_controller_start_complete()). */ -static enum sci_status scic_sds_controller_start_next_phy(struct isci_host *ihost) +static enum sci_status sci_controller_start_next_phy(struct isci_host *ihost) { - struct scic_sds_oem_params *oem = &ihost->oem_parameters.sds1; + struct sci_oem_params *oem = &ihost->oem_parameters; struct isci_phy *iphy; enum sci_status status; @@ -924,7 +907,7 @@ static enum sci_status scic_sds_controller_start_next_phy(struct isci_host *ihos * The controller has successfully finished the start process. * Inform the SCI Core user and transition to the READY state. */ if (is_controller_start_complete == true) { - scic_sds_controller_transition_to_ready(ihost, SCI_SUCCESS); + sci_controller_transition_to_ready(ihost, SCI_SUCCESS); sci_del_timer(&ihost->phy_timer); ihost->phy_startup_timer_pending = false; } @@ -944,11 +927,11 @@ static enum sci_status scic_sds_controller_start_next_phy(struct isci_host *ihos * incorrectly for the PORT or it was never * assigned to a PORT */ - return scic_sds_controller_start_next_phy(ihost); + return sci_controller_start_next_phy(ihost); } } - status = scic_sds_phy_start(iphy); + status = sci_phy_start(iphy); if (status == SCI_SUCCESS) { sci_mod_timer(&ihost->phy_timer, @@ -985,7 +968,7 @@ static void phy_startup_timeout(unsigned long data) ihost->phy_startup_timer_pending = false; do { - status = scic_sds_controller_start_next_phy(ihost); + status = sci_controller_start_next_phy(ihost); } while (status != SCI_SUCCESS); done: @@ -997,7 +980,7 @@ static u16 isci_tci_active(struct isci_host *ihost) return CIRC_CNT(ihost->tci_head, ihost->tci_tail, SCI_MAX_IO_REQUESTS); } -static enum sci_status scic_controller_start(struct isci_host *ihost, +static enum sci_status sci_controller_start(struct isci_host *ihost, u32 timeout) { enum sci_status result; @@ -1018,38 +1001,37 @@ static enum sci_status scic_controller_start(struct isci_host *ihost, isci_tci_free(ihost, index); /* Build the RNi free pool */ - scic_sds_remote_node_table_initialize( - &ihost->available_remote_nodes, - ihost->remote_node_entries); + sci_remote_node_table_initialize(&ihost->available_remote_nodes, + ihost->remote_node_entries); /* * Before anything else lets make sure we will not be * interrupted by the hardware. */ - scic_controller_disable_interrupts(ihost); + sci_controller_disable_interrupts(ihost); /* Enable the port task scheduler */ - scic_sds_controller_enable_port_task_scheduler(ihost); + sci_controller_enable_port_task_scheduler(ihost); /* Assign all the task entries to ihost physical function */ - scic_sds_controller_assign_task_entries(ihost); + sci_controller_assign_task_entries(ihost); /* Now initialize the completion queue */ - scic_sds_controller_initialize_completion_queue(ihost); + sci_controller_initialize_completion_queue(ihost); /* Initialize the unsolicited frame queue for use */ - scic_sds_controller_initialize_unsolicited_frame_queue(ihost); + sci_controller_initialize_unsolicited_frame_queue(ihost); /* Start all of the ports on this controller */ for (index = 0; index < ihost->logical_port_entries; index++) { struct isci_port *iport = &ihost->ports[index]; - result = scic_sds_port_start(iport); + result = sci_port_start(iport); if (result) return result; } - scic_sds_controller_start_next_phy(ihost); + sci_controller_start_next_phy(ihost); sci_mod_timer(&ihost->timer, timeout); @@ -1061,29 +1043,29 @@ static enum sci_status scic_controller_start(struct isci_host *ihost, void isci_host_scan_start(struct Scsi_Host *shost) { struct isci_host *ihost = SHOST_TO_SAS_HA(shost)->lldd_ha; - unsigned long tmo = scic_controller_get_suggested_start_timeout(ihost); + unsigned long tmo = sci_controller_get_suggested_start_timeout(ihost); set_bit(IHOST_START_PENDING, &ihost->flags); spin_lock_irq(&ihost->scic_lock); - scic_controller_start(ihost, tmo); - scic_controller_enable_interrupts(ihost); + sci_controller_start(ihost, tmo); + sci_controller_enable_interrupts(ihost); spin_unlock_irq(&ihost->scic_lock); } static void isci_host_stop_complete(struct isci_host *ihost, enum sci_status completion_status) { isci_host_change_state(ihost, isci_stopped); - scic_controller_disable_interrupts(ihost); + sci_controller_disable_interrupts(ihost); clear_bit(IHOST_STOP_PENDING, &ihost->flags); wake_up(&ihost->eventq); } -static void scic_sds_controller_completion_handler(struct isci_host *ihost) +static void sci_controller_completion_handler(struct isci_host *ihost) { /* Empty out the completion queue */ - if (scic_sds_controller_completion_queue_has_entries(ihost)) - scic_sds_controller_process_completions(ihost); + if (sci_controller_completion_queue_has_entries(ihost)) + sci_controller_process_completions(ihost); /* Clear the interrupt and enable all interrupts again */ writel(SMU_ISR_COMPLETION, &ihost->smu_registers->interrupt_status); @@ -1116,7 +1098,7 @@ static void isci_host_completion_routine(unsigned long data) spin_lock_irq(&ihost->scic_lock); - scic_sds_controller_completion_handler(ihost); + sci_controller_completion_handler(ihost); /* Take the lists of completed I/Os from the host. */ @@ -1203,7 +1185,7 @@ static void isci_host_completion_routine(unsigned long data) } /** - * scic_controller_stop() - This method will stop an individual controller + * sci_controller_stop() - This method will stop an individual controller * object.This method will invoke the associated user callback upon * completion. The completion callback is called when the following * conditions are met: -# the method return status is SCI_SUCCESS. -# the @@ -1220,8 +1202,7 @@ static void isci_host_completion_routine(unsigned long data) * controller is already in the STOPPED state. SCI_FAILURE_INVALID_STATE if the * controller is not either in the STARTED or STOPPED states. */ -static enum sci_status scic_controller_stop(struct isci_host *ihost, - u32 timeout) +static enum sci_status sci_controller_stop(struct isci_host *ihost, u32 timeout) { if (ihost->sm.current_state_id != SCIC_READY) { dev_warn(&ihost->pdev->dev, @@ -1236,7 +1217,7 @@ static enum sci_status scic_controller_stop(struct isci_host *ihost, } /** - * scic_controller_reset() - This method will reset the supplied core + * sci_controller_reset() - This method will reset the supplied core * controller regardless of the state of said controller. This operation is * considered destructive. In other words, all current operations are wiped * out. No IO completions for outstanding devices occur. Outstanding IO @@ -1247,7 +1228,7 @@ static enum sci_status scic_controller_stop(struct isci_host *ihost, * SCI_SUCCESS if the reset operation successfully started. SCI_FATAL_ERROR if * the controller reset operation is unable to complete. */ -static enum sci_status scic_controller_reset(struct isci_host *ihost) +static enum sci_status sci_controller_reset(struct isci_host *ihost) { switch (ihost->sm.current_state_id) { case SCIC_RESET: @@ -1286,11 +1267,11 @@ void isci_host_deinit(struct isci_host *ihost) set_bit(IHOST_STOP_PENDING, &ihost->flags); spin_lock_irq(&ihost->scic_lock); - scic_controller_stop(ihost, SCIC_CONTROLLER_STOP_TIMEOUT); + sci_controller_stop(ihost, SCIC_CONTROLLER_STOP_TIMEOUT); spin_unlock_irq(&ihost->scic_lock); wait_for_stop(ihost); - scic_controller_reset(ihost); + sci_controller_reset(ihost); /* Cancel any/all outstanding port timers */ for (i = 0; i < ihost->logical_port_entries; i++) { @@ -1329,11 +1310,8 @@ static void __iomem *smu_base(struct isci_host *isci_host) return pcim_iomap_table(pdev)[SCI_SMU_BAR * 2] + SCI_SMU_BAR_SIZE * id; } -static void isci_user_parameters_get( - struct isci_host *isci_host, - union scic_user_parameters *scic_user_params) +static void isci_user_parameters_get(struct sci_user_parameters *u) { - struct scic_sds_user_parameters *u = &scic_user_params->sds1; int i; for (i = 0; i < SCI_MAX_PHYS; i++) { @@ -1355,14 +1333,14 @@ static void isci_user_parameters_get( u->max_number_concurrent_device_spin_up = max_concurr_spinup; } -static void scic_sds_controller_initial_state_enter(struct sci_base_state_machine *sm) +static void sci_controller_initial_state_enter(struct sci_base_state_machine *sm) { struct isci_host *ihost = container_of(sm, typeof(*ihost), sm); sci_change_state(&ihost->sm, SCIC_RESET); } -static inline void scic_sds_controller_starting_state_exit(struct sci_base_state_machine *sm) +static inline void sci_controller_starting_state_exit(struct sci_base_state_machine *sm) { struct isci_host *ihost = container_of(sm, typeof(*ihost), sm); @@ -1377,7 +1355,7 @@ static inline void scic_sds_controller_starting_state_exit(struct sci_base_state #define INTERRUPT_COALESCE_TIMEOUT_ENCODE_MAX 28 /** - * scic_controller_set_interrupt_coalescence() - This method allows the user to + * sci_controller_set_interrupt_coalescence() - This method allows the user to * configure the interrupt coalescence. * @controller: This parameter represents the handle to the controller object * for which its interrupt coalesce register is overridden. @@ -1394,9 +1372,9 @@ static inline void scic_sds_controller_starting_state_exit(struct sci_base_state * SCI_FAILURE_INVALID_PARAMETER_VALUE The user input value is out of range. */ static enum sci_status -scic_controller_set_interrupt_coalescence(struct isci_host *ihost, - u32 coalesce_number, - u32 coalesce_timeout) +sci_controller_set_interrupt_coalescence(struct isci_host *ihost, + u32 coalesce_number, + u32 coalesce_timeout) { u8 timeout_encode = 0; u32 min = 0; @@ -1489,23 +1467,23 @@ scic_controller_set_interrupt_coalescence(struct isci_host *ihost, } -static void scic_sds_controller_ready_state_enter(struct sci_base_state_machine *sm) +static void sci_controller_ready_state_enter(struct sci_base_state_machine *sm) { struct isci_host *ihost = container_of(sm, typeof(*ihost), sm); /* set the default interrupt coalescence number and timeout value. */ - scic_controller_set_interrupt_coalescence(ihost, 0x10, 250); + sci_controller_set_interrupt_coalescence(ihost, 0x10, 250); } -static void scic_sds_controller_ready_state_exit(struct sci_base_state_machine *sm) +static void sci_controller_ready_state_exit(struct sci_base_state_machine *sm) { struct isci_host *ihost = container_of(sm, typeof(*ihost), sm); /* disable interrupt coalescence. */ - scic_controller_set_interrupt_coalescence(ihost, 0, 0); + sci_controller_set_interrupt_coalescence(ihost, 0, 0); } -static enum sci_status scic_sds_controller_stop_phys(struct isci_host *ihost) +static enum sci_status sci_controller_stop_phys(struct isci_host *ihost) { u32 index; enum sci_status status; @@ -1514,7 +1492,7 @@ static enum sci_status scic_sds_controller_stop_phys(struct isci_host *ihost) status = SCI_SUCCESS; for (index = 0; index < SCI_MAX_PHYS; index++) { - phy_status = scic_sds_phy_stop(&ihost->phys[index]); + phy_status = sci_phy_stop(&ihost->phys[index]); if (phy_status != SCI_SUCCESS && phy_status != SCI_FAILURE_INVALID_STATE) { @@ -1531,7 +1509,7 @@ static enum sci_status scic_sds_controller_stop_phys(struct isci_host *ihost) return status; } -static enum sci_status scic_sds_controller_stop_ports(struct isci_host *ihost) +static enum sci_status sci_controller_stop_ports(struct isci_host *ihost) { u32 index; enum sci_status port_status; @@ -1540,7 +1518,7 @@ static enum sci_status scic_sds_controller_stop_ports(struct isci_host *ihost) for (index = 0; index < ihost->logical_port_entries; index++) { struct isci_port *iport = &ihost->ports[index]; - port_status = scic_sds_port_stop(iport); + port_status = sci_port_stop(iport); if ((port_status != SCI_SUCCESS) && (port_status != SCI_FAILURE_INVALID_STATE)) { @@ -1558,7 +1536,7 @@ static enum sci_status scic_sds_controller_stop_ports(struct isci_host *ihost) return status; } -static enum sci_status scic_sds_controller_stop_devices(struct isci_host *ihost) +static enum sci_status sci_controller_stop_devices(struct isci_host *ihost) { u32 index; enum sci_status status; @@ -1569,7 +1547,7 @@ static enum sci_status scic_sds_controller_stop_devices(struct isci_host *ihost) for (index = 0; index < ihost->remote_node_entries; index++) { if (ihost->device_table[index] != NULL) { /* / @todo What timeout value do we want to provide to this request? */ - device_status = scic_remote_device_stop(ihost->device_table[index], 0); + device_status = sci_remote_device_stop(ihost->device_table[index], 0); if ((device_status != SCI_SUCCESS) && (device_status != SCI_FAILURE_INVALID_STATE)) { @@ -1586,33 +1564,27 @@ static enum sci_status scic_sds_controller_stop_devices(struct isci_host *ihost) return status; } -static void scic_sds_controller_stopping_state_enter(struct sci_base_state_machine *sm) +static void sci_controller_stopping_state_enter(struct sci_base_state_machine *sm) { struct isci_host *ihost = container_of(sm, typeof(*ihost), sm); /* Stop all of the components for this controller */ - scic_sds_controller_stop_phys(ihost); - scic_sds_controller_stop_ports(ihost); - scic_sds_controller_stop_devices(ihost); + sci_controller_stop_phys(ihost); + sci_controller_stop_ports(ihost); + sci_controller_stop_devices(ihost); } -static void scic_sds_controller_stopping_state_exit(struct sci_base_state_machine *sm) +static void sci_controller_stopping_state_exit(struct sci_base_state_machine *sm) { struct isci_host *ihost = container_of(sm, typeof(*ihost), sm); sci_del_timer(&ihost->timer); } - -/** - * scic_sds_controller_reset_hardware() - - * - * This method will reset the controller hardware. - */ -static void scic_sds_controller_reset_hardware(struct isci_host *ihost) +static void sci_controller_reset_hardware(struct isci_host *ihost) { /* Disable interrupts so we dont take any spurious interrupts */ - scic_controller_disable_interrupts(ihost); + sci_controller_disable_interrupts(ihost); /* Reset the SCU */ writel(0xFFFFFFFF, &ihost->smu_registers->soft_reset_control); @@ -1627,82 +1599,82 @@ static void scic_sds_controller_reset_hardware(struct isci_host *ihost) writel(0, &ihost->scu_registers->sdma.unsolicited_frame_get_pointer); } -static void scic_sds_controller_resetting_state_enter(struct sci_base_state_machine *sm) +static void sci_controller_resetting_state_enter(struct sci_base_state_machine *sm) { struct isci_host *ihost = container_of(sm, typeof(*ihost), sm); - scic_sds_controller_reset_hardware(ihost); + sci_controller_reset_hardware(ihost); sci_change_state(&ihost->sm, SCIC_RESET); } -static const struct sci_base_state scic_sds_controller_state_table[] = { +static const struct sci_base_state sci_controller_state_table[] = { [SCIC_INITIAL] = { - .enter_state = scic_sds_controller_initial_state_enter, + .enter_state = sci_controller_initial_state_enter, }, [SCIC_RESET] = {}, [SCIC_INITIALIZING] = {}, [SCIC_INITIALIZED] = {}, [SCIC_STARTING] = { - .exit_state = scic_sds_controller_starting_state_exit, + .exit_state = sci_controller_starting_state_exit, }, [SCIC_READY] = { - .enter_state = scic_sds_controller_ready_state_enter, - .exit_state = scic_sds_controller_ready_state_exit, + .enter_state = sci_controller_ready_state_enter, + .exit_state = sci_controller_ready_state_exit, }, [SCIC_RESETTING] = { - .enter_state = scic_sds_controller_resetting_state_enter, + .enter_state = sci_controller_resetting_state_enter, }, [SCIC_STOPPING] = { - .enter_state = scic_sds_controller_stopping_state_enter, - .exit_state = scic_sds_controller_stopping_state_exit, + .enter_state = sci_controller_stopping_state_enter, + .exit_state = sci_controller_stopping_state_exit, }, [SCIC_STOPPED] = {}, [SCIC_FAILED] = {} }; -static void scic_sds_controller_set_default_config_parameters(struct isci_host *ihost) +static void sci_controller_set_default_config_parameters(struct isci_host *ihost) { /* these defaults are overridden by the platform / firmware */ u16 index; /* Default to APC mode. */ - ihost->oem_parameters.sds1.controller.mode_type = SCIC_PORT_AUTOMATIC_CONFIGURATION_MODE; + ihost->oem_parameters.controller.mode_type = SCIC_PORT_AUTOMATIC_CONFIGURATION_MODE; /* Default to APC mode. */ - ihost->oem_parameters.sds1.controller.max_concurrent_dev_spin_up = 1; + ihost->oem_parameters.controller.max_concurrent_dev_spin_up = 1; /* Default to no SSC operation. */ - ihost->oem_parameters.sds1.controller.do_enable_ssc = false; + ihost->oem_parameters.controller.do_enable_ssc = false; /* Initialize all of the port parameter information to narrow ports. */ for (index = 0; index < SCI_MAX_PORTS; index++) { - ihost->oem_parameters.sds1.ports[index].phy_mask = 0; + ihost->oem_parameters.ports[index].phy_mask = 0; } /* Initialize all of the phy parameter information. */ for (index = 0; index < SCI_MAX_PHYS; index++) { /* Default to 6G (i.e. Gen 3) for now. */ - ihost->user_parameters.sds1.phys[index].max_speed_generation = 3; + ihost->user_parameters.phys[index].max_speed_generation = 3; /* the frequencies cannot be 0 */ - ihost->user_parameters.sds1.phys[index].align_insertion_frequency = 0x7f; - ihost->user_parameters.sds1.phys[index].in_connection_align_insertion_frequency = 0xff; - ihost->user_parameters.sds1.phys[index].notify_enable_spin_up_insertion_frequency = 0x33; + ihost->user_parameters.phys[index].align_insertion_frequency = 0x7f; + ihost->user_parameters.phys[index].in_connection_align_insertion_frequency = 0xff; + ihost->user_parameters.phys[index].notify_enable_spin_up_insertion_frequency = 0x33; /* * Previous Vitesse based expanders had a arbitration issue that * is worked around by having the upper 32-bits of SAS address * with a value greater then the Vitesse company identifier. * Hence, usage of 0x5FCFFFFF. */ - ihost->oem_parameters.sds1.phys[index].sas_address.low = 0x1 + ihost->id; - ihost->oem_parameters.sds1.phys[index].sas_address.high = 0x5FCFFFFF; + ihost->oem_parameters.phys[index].sas_address.low = 0x1 + ihost->id; + ihost->oem_parameters.phys[index].sas_address.high = 0x5FCFFFFF; } - ihost->user_parameters.sds1.stp_inactivity_timeout = 5; - ihost->user_parameters.sds1.ssp_inactivity_timeout = 5; - ihost->user_parameters.sds1.stp_max_occupancy_timeout = 5; - ihost->user_parameters.sds1.ssp_max_occupancy_timeout = 20; - ihost->user_parameters.sds1.no_outbound_task_timeout = 20; + ihost->user_parameters.stp_inactivity_timeout = 5; + ihost->user_parameters.ssp_inactivity_timeout = 5; + ihost->user_parameters.stp_max_occupancy_timeout = 5; + ihost->user_parameters.ssp_max_occupancy_timeout = 20; + ihost->user_parameters.no_outbound_task_timeout = 20; } static void controller_timeout(unsigned long data) @@ -1718,7 +1690,7 @@ static void controller_timeout(unsigned long data) goto done; if (sm->current_state_id == SCIC_STARTING) - scic_sds_controller_transition_to_ready(ihost, SCI_FAILURE_TIMEOUT); + sci_controller_transition_to_ready(ihost, SCI_FAILURE_TIMEOUT); else if (sm->current_state_id == SCIC_STOPPING) { sci_change_state(sm, SCIC_FAILED); isci_host_stop_complete(ihost, SCI_FAILURE_TIMEOUT); @@ -1732,45 +1704,29 @@ done: spin_unlock_irqrestore(&ihost->scic_lock, flags); } -/** - * scic_controller_construct() - This method will attempt to construct a - * controller object utilizing the supplied parameter information. - * @c: This parameter specifies the controller to be constructed. - * @scu_base: mapped base address of the scu registers - * @smu_base: mapped base address of the smu registers - * - * Indicate if the controller was successfully constructed or if it failed in - * some way. SCI_SUCCESS This value is returned if the controller was - * successfully constructed. SCI_WARNING_TIMER_CONFLICT This value is returned - * if the interrupt coalescence timer may cause SAS compliance issues for SMP - * Target mode response processing. SCI_FAILURE_UNSUPPORTED_CONTROLLER_TYPE - * This value is returned if the controller does not support the supplied type. - * SCI_FAILURE_UNSUPPORTED_INIT_DATA_VERSION This value is returned if the - * controller does not support the supplied initialization data version. - */ -static enum sci_status scic_controller_construct(struct isci_host *ihost, - void __iomem *scu_base, - void __iomem *smu_base) +static enum sci_status sci_controller_construct(struct isci_host *ihost, + void __iomem *scu_base, + void __iomem *smu_base) { u8 i; - sci_init_sm(&ihost->sm, scic_sds_controller_state_table, SCIC_INITIAL); + sci_init_sm(&ihost->sm, sci_controller_state_table, SCIC_INITIAL); ihost->scu_registers = scu_base; ihost->smu_registers = smu_base; - scic_sds_port_configuration_agent_construct(&ihost->port_agent); + sci_port_configuration_agent_construct(&ihost->port_agent); /* Construct the ports for this controller */ for (i = 0; i < SCI_MAX_PORTS; i++) - scic_sds_port_construct(&ihost->ports[i], i, ihost); - scic_sds_port_construct(&ihost->ports[i], SCIC_SDS_DUMMY_PORT, ihost); + sci_port_construct(&ihost->ports[i], i, ihost); + sci_port_construct(&ihost->ports[i], SCIC_SDS_DUMMY_PORT, ihost); /* Construct the phys for this controller */ for (i = 0; i < SCI_MAX_PHYS; i++) { /* Add all the PHYs to the dummy port */ - scic_sds_phy_construct(&ihost->phys[i], - &ihost->ports[SCI_MAX_PORTS], i); + sci_phy_construct(&ihost->phys[i], + &ihost->ports[SCI_MAX_PORTS], i); } ihost->invalid_phy_mask = 0; @@ -1778,12 +1734,12 @@ static enum sci_status scic_controller_construct(struct isci_host *ihost, sci_init_timer(&ihost->timer, controller_timeout); /* Initialize the User and OEM parameters to default values. */ - scic_sds_controller_set_default_config_parameters(ihost); + sci_controller_set_default_config_parameters(ihost); - return scic_controller_reset(ihost); + return sci_controller_reset(ihost); } -int scic_oem_parameters_validate(struct scic_sds_oem_params *oem) +int sci_oem_parameters_validate(struct sci_oem_params *oem) { int i; @@ -1817,8 +1773,7 @@ int scic_oem_parameters_validate(struct scic_sds_oem_params *oem) return 0; } -static enum sci_status scic_oem_parameters_set(struct isci_host *ihost, - union scic_oem_parameters *scic_parms) +static enum sci_status sci_oem_parameters_set(struct isci_host *ihost) { u32 state = ihost->sm.current_state_id; @@ -1826,9 +1781,8 @@ static enum sci_status scic_oem_parameters_set(struct isci_host *ihost, state == SCIC_INITIALIZING || state == SCIC_INITIALIZED) { - if (scic_oem_parameters_validate(&scic_parms->sds1)) + if (sci_oem_parameters_validate(&ihost->oem_parameters)) return SCI_FAILURE_INVALID_PARAMETER_VALUE; - ihost->oem_parameters.sds1 = scic_parms->sds1; return SCI_SUCCESS; } @@ -1836,13 +1790,6 @@ static enum sci_status scic_oem_parameters_set(struct isci_host *ihost, return SCI_FAILURE_INVALID_STATE; } -void scic_oem_parameters_get( - struct isci_host *ihost, - union scic_oem_parameters *scic_parms) -{ - memcpy(scic_parms, (&ihost->oem_parameters), sizeof(*scic_parms)); -} - static void power_control_timeout(unsigned long data) { struct sci_timer *tmr = (struct sci_timer *)data; @@ -1873,13 +1820,13 @@ static void power_control_timeout(unsigned long data) continue; if (ihost->power_control.phys_granted_power >= - ihost->oem_parameters.sds1.controller.max_concurrent_dev_spin_up) + ihost->oem_parameters.controller.max_concurrent_dev_spin_up) break; ihost->power_control.requesters[i] = NULL; ihost->power_control.phys_waiting--; ihost->power_control.phys_granted_power++; - scic_sds_phy_consume_power_handler(iphy); + sci_phy_consume_power_handler(iphy); } /* @@ -1893,22 +1840,15 @@ done: spin_unlock_irqrestore(&ihost->scic_lock, flags); } -/** - * This method inserts the phy in the stagger spinup control queue. - * @scic: - * - * - */ -void scic_sds_controller_power_control_queue_insert( - struct isci_host *ihost, - struct isci_phy *iphy) +void sci_controller_power_control_queue_insert(struct isci_host *ihost, + struct isci_phy *iphy) { BUG_ON(iphy == NULL); if (ihost->power_control.phys_granted_power < - ihost->oem_parameters.sds1.controller.max_concurrent_dev_spin_up) { + ihost->oem_parameters.controller.max_concurrent_dev_spin_up) { ihost->power_control.phys_granted_power++; - scic_sds_phy_consume_power_handler(iphy); + sci_phy_consume_power_handler(iphy); /* * stop and start the power_control timer. When the timer fires, the @@ -1928,21 +1868,13 @@ void scic_sds_controller_power_control_queue_insert( } } -/** - * This method removes the phy from the stagger spinup control queue. - * @scic: - * - * - */ -void scic_sds_controller_power_control_queue_remove( - struct isci_host *ihost, - struct isci_phy *iphy) +void sci_controller_power_control_queue_remove(struct isci_host *ihost, + struct isci_phy *iphy) { BUG_ON(iphy == NULL); - if (ihost->power_control.requesters[iphy->phy_index] != NULL) { + if (ihost->power_control.requesters[iphy->phy_index]) ihost->power_control.phys_waiting--; - } ihost->power_control.requesters[iphy->phy_index] = NULL; } @@ -1952,9 +1884,9 @@ void scic_sds_controller_power_control_queue_remove( /* Initialize the AFE for this phy index. We need to read the AFE setup from * the OEM parameters */ -static void scic_sds_controller_afe_initialization(struct isci_host *ihost) +static void sci_controller_afe_initialization(struct isci_host *ihost) { - const struct scic_sds_oem_params *oem = &ihost->oem_parameters.sds1; + const struct sci_oem_params *oem = &ihost->oem_parameters; u32 afe_status; u32 phy_id; @@ -2111,7 +2043,7 @@ static void scic_sds_controller_afe_initialization(struct isci_host *ihost) udelay(AFE_REGISTER_WRITE_DELAY); } -static void scic_sds_controller_initialize_power_control(struct isci_host *ihost) +static void sci_controller_initialize_power_control(struct isci_host *ihost) { sci_init_timer(&ihost->power_control.timer, power_control_timeout); @@ -2122,7 +2054,7 @@ static void scic_sds_controller_initialize_power_control(struct isci_host *ihost ihost->power_control.phys_granted_power = 0; } -static enum sci_status scic_controller_initialize(struct isci_host *ihost) +static enum sci_status sci_controller_initialize(struct isci_host *ihost) { struct sci_base_state_machine *sm = &ihost->sm; enum sci_status result = SCI_FAILURE; @@ -2142,14 +2074,14 @@ static enum sci_status scic_controller_initialize(struct isci_host *ihost) ihost->next_phy_to_start = 0; ihost->phy_startup_timer_pending = false; - scic_sds_controller_initialize_power_control(ihost); + sci_controller_initialize_power_control(ihost); /* * There is nothing to do here for B0 since we do not have to * program the AFE registers. * / @todo The AFE settings are supposed to be correct for the B0 but * / presently they seem to be wrong. */ - scic_sds_controller_afe_initialization(ihost); + sci_controller_afe_initialization(ihost); /* Take the hardware out of reset */ @@ -2206,24 +2138,22 @@ static enum sci_status scic_controller_initialize(struct isci_host *ihost) * are accessed during the port initialization. */ for (i = 0; i < SCI_MAX_PHYS; i++) { - result = scic_sds_phy_initialize(&ihost->phys[i], - &ihost->scu_registers->peg0.pe[i].tl, - &ihost->scu_registers->peg0.pe[i].ll); + result = sci_phy_initialize(&ihost->phys[i], + &ihost->scu_registers->peg0.pe[i].tl, + &ihost->scu_registers->peg0.pe[i].ll); if (result != SCI_SUCCESS) goto out; } for (i = 0; i < ihost->logical_port_entries; i++) { - result = scic_sds_port_initialize(&ihost->ports[i], - &ihost->scu_registers->peg0.ptsg.port[i], - &ihost->scu_registers->peg0.ptsg.protocol_engine, - &ihost->scu_registers->peg0.viit[i]); + struct isci_port *iport = &ihost->ports[i]; - if (result != SCI_SUCCESS) - goto out; + iport->port_task_scheduler_registers = &ihost->scu_registers->peg0.ptsg.port[i]; + iport->port_pe_configuration_register = &ihost->scu_registers->peg0.ptsg.protocol_engine[0]; + iport->viit_registers = &ihost->scu_registers->peg0.viit[i]; } - result = scic_sds_port_configuration_agent_initialize(ihost, &ihost->port_agent); + result = sci_port_configuration_agent_initialize(ihost, &ihost->port_agent); out: /* Advance the controller state machine */ @@ -2236,9 +2166,8 @@ static enum sci_status scic_controller_initialize(struct isci_host *ihost) return result; } -static enum sci_status scic_user_parameters_set( - struct isci_host *ihost, - union scic_user_parameters *scic_parms) +static enum sci_status sci_user_parameters_set(struct isci_host *ihost, + struct sci_user_parameters *sci_parms) { u32 state = ihost->sm.current_state_id; @@ -2254,7 +2183,7 @@ static enum sci_status scic_user_parameters_set( for (index = 0; index < SCI_MAX_PHYS; index++) { struct sci_phy_user_params *user_phy; - user_phy = &scic_parms->sds1.phys[index]; + user_phy = &sci_parms->phys[index]; if (!((user_phy->max_speed_generation <= SCIC_SDS_PARM_MAX_SPEED) && @@ -2275,14 +2204,14 @@ static enum sci_status scic_user_parameters_set( return SCI_FAILURE_INVALID_PARAMETER_VALUE; } - if ((scic_parms->sds1.stp_inactivity_timeout == 0) || - (scic_parms->sds1.ssp_inactivity_timeout == 0) || - (scic_parms->sds1.stp_max_occupancy_timeout == 0) || - (scic_parms->sds1.ssp_max_occupancy_timeout == 0) || - (scic_parms->sds1.no_outbound_task_timeout == 0)) + if ((sci_parms->stp_inactivity_timeout == 0) || + (sci_parms->ssp_inactivity_timeout == 0) || + (sci_parms->stp_max_occupancy_timeout == 0) || + (sci_parms->ssp_max_occupancy_timeout == 0) || + (sci_parms->no_outbound_task_timeout == 0)) return SCI_FAILURE_INVALID_PARAMETER_VALUE; - memcpy(&ihost->user_parameters, scic_parms, sizeof(*scic_parms)); + memcpy(&ihost->user_parameters, sci_parms, sizeof(*sci_parms)); return SCI_SUCCESS; } @@ -2290,7 +2219,7 @@ static enum sci_status scic_user_parameters_set( return SCI_FAILURE_INVALID_STATE; } -static int scic_controller_mem_init(struct isci_host *ihost) +static int sci_controller_mem_init(struct isci_host *ihost) { struct device *dev = &ihost->pdev->dev; dma_addr_t dma; @@ -2307,7 +2236,7 @@ static int scic_controller_mem_init(struct isci_host *ihost) size = ihost->remote_node_entries * sizeof(union scu_remote_node_context); ihost->remote_node_context_table = dmam_alloc_coherent(dev, size, &dma, - GFP_KERNEL); + GFP_KERNEL); if (!ihost->remote_node_context_table) return -ENOMEM; @@ -2323,7 +2252,7 @@ static int scic_controller_mem_init(struct isci_host *ihost) writel(lower_32_bits(dma), &ihost->smu_registers->host_task_table_lower); writel(upper_32_bits(dma), &ihost->smu_registers->host_task_table_upper); - err = scic_sds_unsolicited_frame_control_construct(ihost); + err = sci_unsolicited_frame_control_construct(ihost); if (err) return err; @@ -2348,8 +2277,7 @@ int isci_host_init(struct isci_host *ihost) { int err = 0, i; enum sci_status status; - union scic_oem_parameters oem; - union scic_user_parameters scic_user_params; + struct sci_user_parameters sci_user_params; struct isci_pci_info *pci_info = to_pci_info(ihost->pdev); spin_lock_init(&ihost->state_lock); @@ -2358,12 +2286,12 @@ int isci_host_init(struct isci_host *ihost) isci_host_change_state(ihost, isci_starting); - status = scic_controller_construct(ihost, scu_base(ihost), - smu_base(ihost)); + status = sci_controller_construct(ihost, scu_base(ihost), + smu_base(ihost)); if (status != SCI_SUCCESS) { dev_err(&ihost->pdev->dev, - "%s: scic_controller_construct failed - status = %x\n", + "%s: sci_controller_construct failed - status = %x\n", __func__, status); return -ENODEV; @@ -2376,21 +2304,18 @@ int isci_host_init(struct isci_host *ihost) * grab initial values stored in the controller object for OEM and USER * parameters */ - isci_user_parameters_get(ihost, &scic_user_params); - status = scic_user_parameters_set(ihost, - &scic_user_params); + isci_user_parameters_get(&sci_user_params); + status = sci_user_parameters_set(ihost, &sci_user_params); if (status != SCI_SUCCESS) { dev_warn(&ihost->pdev->dev, - "%s: scic_user_parameters_set failed\n", + "%s: sci_user_parameters_set failed\n", __func__); return -ENODEV; } - scic_oem_parameters_get(ihost, &oem); - /* grab any OEM parameters specified in orom */ if (pci_info->orom) { - status = isci_parse_oem_parameters(&oem, + status = isci_parse_oem_parameters(&ihost->oem_parameters, pci_info->orom, ihost->id); if (status != SCI_SUCCESS) { @@ -2400,10 +2325,10 @@ int isci_host_init(struct isci_host *ihost) } } - status = scic_oem_parameters_set(ihost, &oem); + status = sci_oem_parameters_set(ihost); if (status != SCI_SUCCESS) { dev_warn(&ihost->pdev->dev, - "%s: scic_oem_parameters_set failed\n", + "%s: sci_oem_parameters_set failed\n", __func__); return -ENODEV; } @@ -2415,17 +2340,17 @@ int isci_host_init(struct isci_host *ihost) INIT_LIST_HEAD(&ihost->requests_to_errorback); spin_lock_irq(&ihost->scic_lock); - status = scic_controller_initialize(ihost); + status = sci_controller_initialize(ihost); spin_unlock_irq(&ihost->scic_lock); if (status != SCI_SUCCESS) { dev_warn(&ihost->pdev->dev, - "%s: scic_controller_initialize failed -" + "%s: sci_controller_initialize failed -" " status = 0x%x\n", __func__, status); return -ENODEV; } - err = scic_controller_mem_init(ihost); + err = sci_controller_mem_init(ihost); if (err) return err; @@ -2463,20 +2388,20 @@ int isci_host_init(struct isci_host *ihost) return 0; } -void scic_sds_controller_link_up(struct isci_host *ihost, - struct isci_port *iport, struct isci_phy *iphy) +void sci_controller_link_up(struct isci_host *ihost, struct isci_port *iport, + struct isci_phy *iphy) { switch (ihost->sm.current_state_id) { case SCIC_STARTING: sci_del_timer(&ihost->phy_timer); ihost->phy_startup_timer_pending = false; ihost->port_agent.link_up_handler(ihost, &ihost->port_agent, - iport, iphy); - scic_sds_controller_start_next_phy(ihost); + iport, iphy); + sci_controller_start_next_phy(ihost); break; case SCIC_READY: ihost->port_agent.link_up_handler(ihost, &ihost->port_agent, - iport, iphy); + iport, iphy); break; default: dev_dbg(&ihost->pdev->dev, @@ -2486,8 +2411,8 @@ void scic_sds_controller_link_up(struct isci_host *ihost, } } -void scic_sds_controller_link_down(struct isci_host *ihost, - struct isci_port *iport, struct isci_phy *iphy) +void sci_controller_link_down(struct isci_host *ihost, struct isci_port *iport, + struct isci_phy *iphy) { switch (ihost->sm.current_state_id) { case SCIC_STARTING: @@ -2505,12 +2430,7 @@ void scic_sds_controller_link_down(struct isci_host *ihost, } } -/** - * This is a helper method to determine if any remote devices on this - * controller are still in the stopping state. - * - */ -static bool scic_sds_controller_has_remote_devices_stopping(struct isci_host *ihost) +static bool sci_controller_has_remote_devices_stopping(struct isci_host *ihost) { u32 index; @@ -2523,12 +2443,8 @@ static bool scic_sds_controller_has_remote_devices_stopping(struct isci_host *ih return false; } -/** - * This method is called by the remote device to inform the controller - * object that the remote device has stopped. - */ -void scic_sds_controller_remote_device_stopped(struct isci_host *ihost, - struct isci_remote_device *idev) +void sci_controller_remote_device_stopped(struct isci_host *ihost, + struct isci_remote_device *idev) { if (ihost->sm.current_state_id != SCIC_STOPPING) { dev_dbg(&ihost->pdev->dev, @@ -2539,32 +2455,19 @@ void scic_sds_controller_remote_device_stopped(struct isci_host *ihost, return; } - if (!scic_sds_controller_has_remote_devices_stopping(ihost)) { + if (!sci_controller_has_remote_devices_stopping(ihost)) sci_change_state(&ihost->sm, SCIC_STOPPED); - } } -/** - * This method will write to the SCU PCP register the request value. The method - * is used to suspend/resume ports, devices, and phys. - * @scic: - * - * - */ -void scic_sds_controller_post_request( - struct isci_host *ihost, - u32 request) +void sci_controller_post_request(struct isci_host *ihost, u32 request) { - dev_dbg(&ihost->pdev->dev, - "%s: SCIC Controller 0x%p post request 0x%08x\n", - __func__, - ihost, - request); + dev_dbg(&ihost->pdev->dev, "%s[%d]: %#x\n", + __func__, ihost->id, request); writel(request, &ihost->smu_registers->post_context_port); } -struct isci_request *scic_request_by_tag(struct isci_host *ihost, u16 io_tag) +struct isci_request *sci_request_by_tag(struct isci_host *ihost, u16 io_tag) { u16 task_index; u16 task_sequence; @@ -2599,15 +2502,14 @@ struct isci_request *scic_request_by_tag(struct isci_host *ihost, u16 io_tag) * enum sci_status SCI_FAILURE_OUT_OF_RESOURCES if there are no available remote * node index available. */ -enum sci_status scic_sds_controller_allocate_remote_node_context( - struct isci_host *ihost, - struct isci_remote_device *idev, - u16 *node_id) +enum sci_status sci_controller_allocate_remote_node_context(struct isci_host *ihost, + struct isci_remote_device *idev, + u16 *node_id) { u16 node_index; - u32 remote_node_count = scic_sds_remote_device_node_count(idev); + u32 remote_node_count = sci_remote_device_node_count(idev); - node_index = scic_sds_remote_node_table_allocate_remote_node( + node_index = sci_remote_node_table_allocate_remote_node( &ihost->available_remote_nodes, remote_node_count ); @@ -2622,68 +2524,26 @@ enum sci_status scic_sds_controller_allocate_remote_node_context( return SCI_FAILURE_INSUFFICIENT_RESOURCES; } -/** - * This method frees the remote node index back to the available pool. Once - * this is done the remote node context buffer is no longer valid and can - * not be used. - * @scic: - * @sci_dev: - * @node_id: - * - */ -void scic_sds_controller_free_remote_node_context( - struct isci_host *ihost, - struct isci_remote_device *idev, - u16 node_id) +void sci_controller_free_remote_node_context(struct isci_host *ihost, + struct isci_remote_device *idev, + u16 node_id) { - u32 remote_node_count = scic_sds_remote_device_node_count(idev); + u32 remote_node_count = sci_remote_device_node_count(idev); if (ihost->device_table[node_id] == idev) { ihost->device_table[node_id] = NULL; - scic_sds_remote_node_table_release_remote_node_index( + sci_remote_node_table_release_remote_node_index( &ihost->available_remote_nodes, remote_node_count, node_id ); } } -/** - * This method returns the union scu_remote_node_context for the specified remote - * node id. - * @scic: - * @node_id: - * - * union scu_remote_node_context* - */ -union scu_remote_node_context *scic_sds_controller_get_remote_node_context_buffer( - struct isci_host *ihost, - u16 node_id - ) { - if ( - (node_id < ihost->remote_node_entries) - && (ihost->device_table[node_id] != NULL) - ) { - return &ihost->remote_node_context_table[node_id]; - } - - return NULL; -} - -/** - * - * @resposne_buffer: This is the buffer into which the D2H register FIS will be - * constructed. - * @frame_header: This is the frame header returned by the hardware. - * @frame_buffer: This is the frame buffer returned by the hardware. - * - * This method will combind the frame header and frame buffer to create a SATA - * D2H register FIS none - */ -void scic_sds_controller_copy_sata_response( - void *response_buffer, - void *frame_header, - void *frame_buffer) +void sci_controller_copy_sata_response(void *response_buffer, + void *frame_header, + void *frame_buffer) { + /* XXX type safety? */ memcpy(response_buffer, frame_header, sizeof(u32)); memcpy(response_buffer + sizeof(u32), @@ -2691,21 +2551,9 @@ void scic_sds_controller_copy_sata_response( sizeof(struct dev_to_host_fis) - sizeof(u32)); } -/** - * This method releases the frame once this is done the frame is available for - * re-use by the hardware. The data contained in the frame header and frame - * buffer is no longer valid. The UF queue get pointer is only updated if UF - * control indicates this is appropriate. - * @scic: - * @frame_index: - * - */ -void scic_sds_controller_release_frame( - struct isci_host *ihost, - u32 frame_index) +void sci_controller_release_frame(struct isci_host *ihost, u32 frame_index) { - if (scic_sds_unsolicited_frame_control_release_frame( - &ihost->uf_control, frame_index) == true) + if (sci_unsolicited_frame_control_release_frame(&ihost->uf_control, frame_index)) writel(ihost->uf_control.get, &ihost->scu_registers->sdma.unsolicited_frame_get_pointer); } @@ -2763,21 +2611,9 @@ enum sci_status isci_free_tag(struct isci_host *ihost, u16 io_tag) return SCI_FAILURE_INVALID_IO_TAG; } -/** - * scic_controller_start_io() - This method is called by the SCI user to - * send/start an IO request. If the method invocation is successful, then - * the IO request has been queued to the hardware for processing. - * @controller: the handle to the controller object for which to start an IO - * request. - * @remote_device: the handle to the remote device object for which to start an - * IO request. - * @io_request: the handle to the io request object to start. - * @io_tag: This parameter specifies a previously allocated IO tag that the - * user desires to be utilized for this request. - */ -enum sci_status scic_controller_start_io(struct isci_host *ihost, - struct isci_remote_device *idev, - struct isci_request *ireq) +enum sci_status sci_controller_start_io(struct isci_host *ihost, + struct isci_remote_device *idev, + struct isci_request *ireq) { enum sci_status status; @@ -2786,36 +2622,23 @@ enum sci_status scic_controller_start_io(struct isci_host *ihost, return SCI_FAILURE_INVALID_STATE; } - status = scic_sds_remote_device_start_io(ihost, idev, ireq); + status = sci_remote_device_start_io(ihost, idev, ireq); if (status != SCI_SUCCESS) return status; set_bit(IREQ_ACTIVE, &ireq->flags); - scic_sds_controller_post_request(ihost, scic_sds_request_get_post_context(ireq)); + sci_controller_post_request(ihost, sci_request_get_post_context(ireq)); return SCI_SUCCESS; } -/** - * scic_controller_terminate_request() - This method is called by the SCI Core - * user to terminate an ongoing (i.e. started) core IO request. This does - * not abort the IO request at the target, but rather removes the IO request - * from the host controller. - * @controller: the handle to the controller object for which to terminate a - * request. - * @remote_device: the handle to the remote device object for which to - * terminate a request. - * @request: the handle to the io or task management request object to - * terminate. - * - * Indicate if the controller successfully began the terminate process for the - * IO request. SCI_SUCCESS if the terminate process was successfully started - * for the request. Determine the failure situations and return values. - */ -enum sci_status scic_controller_terminate_request( - struct isci_host *ihost, - struct isci_remote_device *idev, - struct isci_request *ireq) +enum sci_status sci_controller_terminate_request(struct isci_host *ihost, + struct isci_remote_device *idev, + struct isci_request *ireq) { + /* terminate an ongoing (i.e. started) core IO request. This does not + * abort the IO request at the target, but rather removes the IO + * request from the host controller. + */ enum sci_status status; if (ihost->sm.current_state_id != SCIC_READY) { @@ -2824,7 +2647,7 @@ enum sci_status scic_controller_terminate_request( return SCI_FAILURE_INVALID_STATE; } - status = scic_sds_io_request_terminate(ireq); + status = sci_io_request_terminate(ireq); if (status != SCI_SUCCESS) return status; @@ -2832,27 +2655,25 @@ enum sci_status scic_controller_terminate_request( * Utilize the original post context command and or in the POST_TC_ABORT * request sub-type. */ - scic_sds_controller_post_request(ihost, - scic_sds_request_get_post_context(ireq) | - SCU_CONTEXT_COMMAND_REQUEST_POST_TC_ABORT); + sci_controller_post_request(ihost, + ireq->post_context | SCU_CONTEXT_COMMAND_REQUEST_POST_TC_ABORT); return SCI_SUCCESS; } /** - * scic_controller_complete_io() - This method will perform core specific + * sci_controller_complete_io() - This method will perform core specific * completion operations for an IO request. After this method is invoked, * the user should consider the IO request as invalid until it is properly * reused (i.e. re-constructed). - * @controller: The handle to the controller object for which to complete the + * @ihost: The handle to the controller object for which to complete the * IO request. - * @remote_device: The handle to the remote device object for which to complete + * @idev: The handle to the remote device object for which to complete * the IO request. - * @io_request: the handle to the io request object to complete. + * @ireq: the handle to the io request object to complete. */ -enum sci_status scic_controller_complete_io( - struct isci_host *ihost, - struct isci_remote_device *idev, - struct isci_request *ireq) +enum sci_status sci_controller_complete_io(struct isci_host *ihost, + struct isci_remote_device *idev, + struct isci_request *ireq) { enum sci_status status; u16 index; @@ -2862,7 +2683,7 @@ enum sci_status scic_controller_complete_io( /* XXX: Implement this function */ return SCI_FAILURE; case SCIC_READY: - status = scic_sds_remote_device_complete_io(ihost, idev, ireq); + status = sci_remote_device_complete_io(ihost, idev, ireq); if (status != SCI_SUCCESS) return status; @@ -2876,7 +2697,7 @@ enum sci_status scic_controller_complete_io( } -enum sci_status scic_controller_continue_io(struct isci_request *ireq) +enum sci_status sci_controller_continue_io(struct isci_request *ireq) { struct isci_host *ihost = ireq->owning_controller; @@ -2886,12 +2707,12 @@ enum sci_status scic_controller_continue_io(struct isci_request *ireq) } set_bit(IREQ_ACTIVE, &ireq->flags); - scic_sds_controller_post_request(ihost, scic_sds_request_get_post_context(ireq)); + sci_controller_post_request(ihost, sci_request_get_post_context(ireq)); return SCI_SUCCESS; } /** - * scic_controller_start_task() - This method is called by the SCIC user to + * sci_controller_start_task() - This method is called by the SCIC user to * send/start a framework task management request. * @controller: the handle to the controller object for which to start the task * management request. @@ -2899,10 +2720,9 @@ enum sci_status scic_controller_continue_io(struct isci_request *ireq) * the task management request. * @task_request: the handle to the task request object to start. */ -enum sci_task_status scic_controller_start_task( - struct isci_host *ihost, - struct isci_remote_device *idev, - struct isci_request *ireq) +enum sci_task_status sci_controller_start_task(struct isci_host *ihost, + struct isci_remote_device *idev, + struct isci_request *ireq) { enum sci_status status; @@ -2914,7 +2734,7 @@ enum sci_task_status scic_controller_start_task( return SCI_TASK_FAILURE_INVALID_STATE; } - status = scic_sds_remote_device_start_task(ihost, idev, ireq); + status = sci_remote_device_start_task(ihost, idev, ireq); switch (status) { case SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS: set_bit(IREQ_ACTIVE, &ireq->flags); @@ -2928,8 +2748,8 @@ enum sci_task_status scic_controller_start_task( case SCI_SUCCESS: set_bit(IREQ_ACTIVE, &ireq->flags); - scic_sds_controller_post_request(ihost, - scic_sds_request_get_post_context(ireq)); + sci_controller_post_request(ihost, + sci_request_get_post_context(ireq)); break; default: break; diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index 013f672a8fd..d87f21de180 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -69,12 +69,12 @@ struct scu_task_context; /** - * struct scic_power_control - + * struct sci_power_control - * * This structure defines the fields for managing power control for direct * attached disk devices. */ -struct scic_power_control { +struct sci_power_control { /** * This field is set when the power control timer is running and cleared when * it is not. @@ -99,18 +99,18 @@ struct scic_power_control { /** * This field is an array of phys that we are waiting on. The phys are direct - * mapped into requesters via struct scic_sds_phy.phy_index + * mapped into requesters via struct sci_phy.phy_index */ struct isci_phy *requesters[SCI_MAX_PHYS]; }; -struct scic_sds_port_configuration_agent; +struct sci_port_configuration_agent; typedef void (*port_config_fn)(struct isci_host *, - struct scic_sds_port_configuration_agent *, + struct sci_port_configuration_agent *, struct isci_port *, struct isci_phy *); -struct scic_sds_port_configuration_agent { +struct sci_port_configuration_agent { u16 phy_configured_mask; u16 phy_ready_mask; struct { @@ -149,13 +149,13 @@ struct isci_host { /* XXX can we time this externally */ struct sci_timer timer; /* XXX drop reference module params directly */ - union scic_user_parameters user_parameters; + struct sci_user_parameters user_parameters; /* XXX no need to be a union */ - union scic_oem_parameters oem_parameters; - struct scic_sds_port_configuration_agent port_agent; + struct sci_oem_params oem_parameters; + struct sci_port_configuration_agent port_agent; struct isci_remote_device *device_table[SCI_MAX_REMOTE_DEVICES]; - struct scic_remote_node_table available_remote_nodes; - struct scic_power_control power_control; + struct sci_remote_node_table available_remote_nodes; + struct sci_power_control power_control; u8 io_request_sequence[SCI_MAX_IO_REQUESTS]; struct scu_task_context *task_context_table; dma_addr_t task_context_dma; @@ -165,7 +165,7 @@ struct isci_host { u32 logical_port_entries; u32 remote_node_entries; u32 task_context_entries; - struct scic_sds_unsolicited_frame_control uf_control; + struct sci_unsolicited_frame_control uf_control; /* phy startup */ struct sci_timer phy_timer; @@ -206,10 +206,10 @@ struct isci_host { }; /** - * enum scic_sds_controller_states - This enumeration depicts all the states + * enum sci_controller_states - This enumeration depicts all the states * for the common controller state machine. */ -enum scic_sds_controller_states { +enum sci_controller_states { /** * Simply the initial state for the base controller state machine. */ @@ -360,14 +360,14 @@ static inline struct isci_host *dev_to_ihost(struct domain_device *dev) } /** - * scic_sds_controller_get_protocol_engine_group() - + * sci_controller_get_protocol_engine_group() - * * This macro returns the protocol engine group for this controller object. * Presently we only support protocol engine group 0 so just return that */ -#define scic_sds_controller_get_protocol_engine_group(controller) 0 +#define sci_controller_get_protocol_engine_group(controller) 0 -/* see scic_controller_io_tag_allocate|free for how seq and tci are built */ +/* see sci_controller_io_tag_allocate|free for how seq and tci are built */ #define ISCI_TAG(seq, tci) (((u16) (seq)) << 12 | tci) /* these are returned by the hardware, so sanitize them */ @@ -375,7 +375,7 @@ static inline struct isci_host *dev_to_ihost(struct domain_device *dev) #define ISCI_TAG_TCI(tag) ((tag) & (SCI_MAX_IO_REQUESTS-1)) /* expander attached sata devices require 3 rnc slots */ -static inline int scic_sds_remote_device_node_count(struct isci_remote_device *idev) +static inline int sci_remote_device_node_count(struct isci_remote_device *idev) { struct domain_device *dev = idev->domain_dev; @@ -386,23 +386,23 @@ static inline int scic_sds_remote_device_node_count(struct isci_remote_device *i } /** - * scic_sds_controller_set_invalid_phy() - + * sci_controller_set_invalid_phy() - * * This macro will set the bit in the invalid phy mask for this controller * object. This is used to control messages reported for invalid link up * notifications. */ -#define scic_sds_controller_set_invalid_phy(controller, phy) \ +#define sci_controller_set_invalid_phy(controller, phy) \ ((controller)->invalid_phy_mask |= (1 << (phy)->phy_index)) /** - * scic_sds_controller_clear_invalid_phy() - + * sci_controller_clear_invalid_phy() - * * This macro will clear the bit in the invalid phy mask for this controller * object. This is used to control messages reported for invalid link up * notifications. */ -#define scic_sds_controller_clear_invalid_phy(controller, phy) \ +#define sci_controller_clear_invalid_phy(controller, phy) \ ((controller)->invalid_phy_mask &= ~(1 << (phy)->phy_index)) static inline struct device *sciphy_to_dev(struct isci_phy *iphy) @@ -460,56 +460,53 @@ static inline bool is_c0(void) return isci_si_rev > ISCI_SI_REVB0; } -void scic_sds_controller_post_request(struct isci_host *ihost, +void sci_controller_post_request(struct isci_host *ihost, u32 request); -void scic_sds_controller_release_frame(struct isci_host *ihost, +void sci_controller_release_frame(struct isci_host *ihost, u32 frame_index); -void scic_sds_controller_copy_sata_response(void *response_buffer, +void sci_controller_copy_sata_response(void *response_buffer, void *frame_header, void *frame_buffer); -enum sci_status scic_sds_controller_allocate_remote_node_context(struct isci_host *ihost, +enum sci_status sci_controller_allocate_remote_node_context(struct isci_host *ihost, struct isci_remote_device *idev, u16 *node_id); -void scic_sds_controller_free_remote_node_context( +void sci_controller_free_remote_node_context( struct isci_host *ihost, struct isci_remote_device *idev, u16 node_id); -union scu_remote_node_context *scic_sds_controller_get_remote_node_context_buffer( - struct isci_host *ihost, - u16 node_id); -struct isci_request *scic_request_by_tag(struct isci_host *ihost, +struct isci_request *sci_request_by_tag(struct isci_host *ihost, u16 io_tag); -void scic_sds_controller_power_control_queue_insert( +void sci_controller_power_control_queue_insert( struct isci_host *ihost, struct isci_phy *iphy); -void scic_sds_controller_power_control_queue_remove( +void sci_controller_power_control_queue_remove( struct isci_host *ihost, struct isci_phy *iphy); -void scic_sds_controller_link_up( +void sci_controller_link_up( struct isci_host *ihost, struct isci_port *iport, struct isci_phy *iphy); -void scic_sds_controller_link_down( +void sci_controller_link_down( struct isci_host *ihost, struct isci_port *iport, struct isci_phy *iphy); -void scic_sds_controller_remote_device_stopped( +void sci_controller_remote_device_stopped( struct isci_host *ihost, struct isci_remote_device *idev); -void scic_sds_controller_copy_task_context( +void sci_controller_copy_task_context( struct isci_host *ihost, struct isci_request *ireq); -void scic_sds_controller_register_setup(struct isci_host *ihost); +void sci_controller_register_setup(struct isci_host *ihost); -enum sci_status scic_controller_continue_io(struct isci_request *ireq); +enum sci_status sci_controller_continue_io(struct isci_request *ireq); int isci_host_scan_finished(struct Scsi_Host *, unsigned long); void isci_host_scan_start(struct Scsi_Host *); u16 isci_alloc_tag(struct isci_host *ihost); @@ -536,33 +533,33 @@ void isci_host_remote_device_start_complete( struct isci_remote_device *, enum sci_status); -void scic_controller_disable_interrupts( +void sci_controller_disable_interrupts( struct isci_host *ihost); -enum sci_status scic_controller_start_io( +enum sci_status sci_controller_start_io( struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq); -enum sci_task_status scic_controller_start_task( +enum sci_task_status sci_controller_start_task( struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq); -enum sci_status scic_controller_terminate_request( +enum sci_status sci_controller_terminate_request( struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq); -enum sci_status scic_controller_complete_io( +enum sci_status sci_controller_complete_io( struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq); -void scic_sds_port_configuration_agent_construct( - struct scic_sds_port_configuration_agent *port_agent); +void sci_port_configuration_agent_construct( + struct sci_port_configuration_agent *port_agent); -enum sci_status scic_sds_port_configuration_agent_initialize( +enum sci_status sci_port_configuration_agent_initialize( struct isci_host *ihost, - struct scic_sds_port_configuration_agent *port_agent); + struct sci_port_configuration_agent *port_agent); #endif diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index 68ca1a4f30a..8d9a8bfff4d 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -484,7 +484,7 @@ static int __devinit isci_pci_probe(struct pci_dev *pdev, const struct pci_devic orom = isci_request_oprom(pdev); for (i = 0; orom && i < ARRAY_SIZE(orom->ctrl); i++) { - if (scic_oem_parameters_validate(&orom->ctrl[i])) { + if (sci_oem_parameters_validate(&orom->ctrl[i])) { dev_warn(&pdev->dev, "[%d]: invalid oem parameters detected, falling back to firmware\n", i); devm_kfree(&pdev->dev, orom); @@ -554,7 +554,7 @@ static void __devexit isci_pci_remove(struct pci_dev *pdev) for_each_isci_host(i, ihost, pdev) { isci_unregister(ihost); isci_host_deinit(ihost); - scic_controller_disable_interrupts(ihost); + sci_controller_disable_interrupts(ihost); } } diff --git a/drivers/scsi/isci/isci.h b/drivers/scsi/isci/isci.h index 207328369ed..3afccfcb94e 100644 --- a/drivers/scsi/isci/isci.h +++ b/drivers/scsi/isci/isci.h @@ -304,7 +304,7 @@ enum sci_status { * This member indicates that the operation failed, the failure is * controller implementation specific, and the response data associated * with the request is not valid. You can query for the controller - * specific error information via scic_controller_get_request_status() + * specific error information via sci_controller_get_request_status() */ SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR, @@ -395,7 +395,7 @@ enum sci_status { /** * This value indicates that an unsupported PCI device ID has been * specified. This indicates that attempts to invoke - * scic_library_allocate_controller() will fail. + * sci_library_allocate_controller() will fail. */ SCI_FAILURE_UNSUPPORTED_PCI_DEVICE_ID @@ -493,7 +493,7 @@ irqreturn_t isci_error_isr(int vec, void *data); /* * Each timer is associated with a cancellation flag that is set when * del_timer() is called and checked in the timer callback function. This - * is needed since del_timer_sync() cannot be called with scic_lock held. + * is needed since del_timer_sync() cannot be called with sci_lock held. * For deinit however, del_timer_sync() is used without holding the lock. */ struct sci_timer { diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c index ca96b5ad0d5..0df9f713f48 100644 --- a/drivers/scsi/isci/phy.c +++ b/drivers/scsi/isci/phy.c @@ -67,25 +67,13 @@ enum sas_linkrate sci_phy_linkrate(struct isci_phy *iphy) return iphy->max_negotiated_speed; } -/* - * ***************************************************************************** - * * SCIC SDS PHY Internal Methods - * ***************************************************************************** */ - -/** - * This method will initialize the phy transport layer registers - * @sci_phy: - * @transport_layer_registers - * - * enum sci_status - */ -static enum sci_status scic_sds_phy_transport_layer_initialization( - struct isci_phy *iphy, - struct scu_transport_layer_registers __iomem *transport_layer_registers) +static enum sci_status +sci_phy_transport_layer_initialization(struct isci_phy *iphy, + struct scu_transport_layer_registers __iomem *reg) { u32 tl_control; - iphy->transport_layer_registers = transport_layer_registers; + iphy->transport_layer_registers = reg; writel(SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX, &iphy->transport_layer_registers->stp_rni); @@ -101,32 +89,23 @@ static enum sci_status scic_sds_phy_transport_layer_initialization( return SCI_SUCCESS; } -/** - * This method will initialize the phy link layer registers - * @sci_phy: - * @link_layer_registers: - * - * enum sci_status - */ static enum sci_status -scic_sds_phy_link_layer_initialization(struct isci_phy *iphy, - struct scu_link_layer_registers __iomem *link_layer_registers) +sci_phy_link_layer_initialization(struct isci_phy *iphy, + struct scu_link_layer_registers __iomem *reg) { - struct isci_host *ihost = - iphy->owning_port->owning_controller; + struct isci_host *ihost = iphy->owning_port->owning_controller; int phy_idx = iphy->phy_index; - struct sci_phy_user_params *phy_user = - &ihost->user_parameters.sds1.phys[phy_idx]; + struct sci_phy_user_params *phy_user = &ihost->user_parameters.phys[phy_idx]; struct sci_phy_oem_params *phy_oem = - &ihost->oem_parameters.sds1.phys[phy_idx]; + &ihost->oem_parameters.phys[phy_idx]; u32 phy_configuration; - struct scic_phy_cap phy_cap; + struct sci_phy_cap phy_cap; u32 parity_check = 0; u32 parity_count = 0; u32 llctl, link_rate; u32 clksm_value = 0; - iphy->link_layer_registers = link_layer_registers; + iphy->link_layer_registers = reg; /* Set our IDENTIFY frame data */ #define SCI_END_DEVICE 0x01 @@ -169,7 +148,7 @@ scic_sds_phy_link_layer_initialization(struct isci_phy *iphy, phy_cap.gen3_no_ssc = 1; phy_cap.gen2_no_ssc = 1; phy_cap.gen1_no_ssc = 1; - if (ihost->oem_parameters.sds1.controller.do_enable_ssc == true) { + if (ihost->oem_parameters.controller.do_enable_ssc == true) { phy_cap.gen3_ssc = 1; phy_cap.gen2_ssc = 1; phy_cap.gen1_ssc = 1; @@ -216,7 +195,7 @@ scic_sds_phy_link_layer_initialization(struct isci_phy *iphy, &iphy->link_layer_registers->afe_lookup_table_control); llctl = SCU_SAS_LLCTL_GEN_VAL(NO_OUTBOUND_TASK_TIMEOUT, - (u8)ihost->user_parameters.sds1.no_outbound_task_timeout); + (u8)ihost->user_parameters.no_outbound_task_timeout); switch(phy_user->max_speed_generation) { case SCIC_SDS_PARM_GEN3_SPEED: @@ -289,7 +268,7 @@ done: struct isci_port *phy_get_non_dummy_port( struct isci_phy *iphy) { - if (scic_sds_port_get_index(iphy->owning_port) == SCIC_SDS_DUMMY_PORT) + if (sci_port_get_index(iphy->owning_port) == SCIC_SDS_DUMMY_PORT) return NULL; return iphy->owning_port; @@ -302,7 +281,7 @@ struct isci_port *phy_get_non_dummy_port( * * */ -void scic_sds_phy_set_port( +void sci_phy_set_port( struct isci_phy *iphy, struct isci_port *iport) { @@ -310,33 +289,23 @@ void scic_sds_phy_set_port( if (iphy->bcn_received_while_port_unassigned) { iphy->bcn_received_while_port_unassigned = false; - scic_sds_port_broadcast_change_received(iphy->owning_port, iphy); + sci_port_broadcast_change_received(iphy->owning_port, iphy); } } -/** - * This method will initialize the constructed phy - * @sci_phy: - * @link_layer_registers: - * - * enum sci_status - */ -enum sci_status scic_sds_phy_initialize( - struct isci_phy *iphy, - struct scu_transport_layer_registers __iomem *transport_layer_registers, - struct scu_link_layer_registers __iomem *link_layer_registers) +enum sci_status sci_phy_initialize(struct isci_phy *iphy, + struct scu_transport_layer_registers __iomem *tl, + struct scu_link_layer_registers __iomem *ll) { /* Perfrom the initialization of the TL hardware */ - scic_sds_phy_transport_layer_initialization( - iphy, - transport_layer_registers); + sci_phy_transport_layer_initialization(iphy, tl); /* Perofrm the initialization of the PE hardware */ - scic_sds_phy_link_layer_initialization(iphy, link_layer_registers); + sci_phy_link_layer_initialization(iphy, ll); - /* - * There is nothing that needs to be done in this state just - * transition to the stopped state. */ + /* There is nothing that needs to be done in this state just + * transition to the stopped state + */ sci_change_state(&iphy->sm, SCI_PHY_STOPPED); return SCI_SUCCESS; @@ -351,9 +320,7 @@ enum sci_status scic_sds_phy_initialize( * This will either be the RNi for the device or an invalid RNi if there * is no current device assigned to the phy. */ -void scic_sds_phy_setup_transport( - struct isci_phy *iphy, - u32 device_id) +void sci_phy_setup_transport(struct isci_phy *iphy, u32 device_id) { u32 tl_control; @@ -368,15 +335,7 @@ void scic_sds_phy_setup_transport( writel(tl_control, &iphy->transport_layer_registers->control); } -/** - * - * @sci_phy: The phy object to be suspended. - * - * This function will perform the register reads/writes to suspend the SCU - * hardware protocol engine. none - */ -static void scic_sds_phy_suspend( - struct isci_phy *iphy) +static void sci_phy_suspend(struct isci_phy *iphy) { u32 scu_sas_pcfg_value; @@ -386,12 +345,10 @@ static void scic_sds_phy_suspend( writel(scu_sas_pcfg_value, &iphy->link_layer_registers->phy_configuration); - scic_sds_phy_setup_transport( - iphy, - SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX); + sci_phy_setup_transport(iphy, SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX); } -void scic_sds_phy_resume(struct isci_phy *iphy) +void sci_phy_resume(struct isci_phy *iphy) { u32 scu_sas_pcfg_value; @@ -402,34 +359,28 @@ void scic_sds_phy_resume(struct isci_phy *iphy) &iphy->link_layer_registers->phy_configuration); } -void scic_sds_phy_get_sas_address(struct isci_phy *iphy, - struct sci_sas_address *sas_address) +void sci_phy_get_sas_address(struct isci_phy *iphy, struct sci_sas_address *sas) { - sas_address->high = readl(&iphy->link_layer_registers->source_sas_address_high); - sas_address->low = readl(&iphy->link_layer_registers->source_sas_address_low); + sas->high = readl(&iphy->link_layer_registers->source_sas_address_high); + sas->low = readl(&iphy->link_layer_registers->source_sas_address_low); } -void scic_sds_phy_get_attached_sas_address(struct isci_phy *iphy, - struct sci_sas_address *sas_address) +void sci_phy_get_attached_sas_address(struct isci_phy *iphy, struct sci_sas_address *sas) { struct sas_identify_frame *iaf; iaf = &iphy->frame_rcvd.iaf; - memcpy(sas_address, iaf->sas_addr, SAS_ADDR_SIZE); + memcpy(sas, iaf->sas_addr, SAS_ADDR_SIZE); } -void scic_sds_phy_get_protocols(struct isci_phy *iphy, - struct scic_phy_proto *protocols) +void sci_phy_get_protocols(struct isci_phy *iphy, struct sci_phy_proto *proto) { - protocols->all = - (u16)(readl(&iphy-> - link_layer_registers->transmit_identification) & - 0x0000FFFF); + proto->all = readl(&iphy->link_layer_registers->transmit_identification); } -enum sci_status scic_sds_phy_start(struct isci_phy *iphy) +enum sci_status sci_phy_start(struct isci_phy *iphy) { - enum scic_sds_phy_states state = iphy->sm.current_state_id; + enum sci_phy_states state = iphy->sm.current_state_id; if (state != SCI_PHY_STOPPED) { dev_dbg(sciphy_to_dev(iphy), @@ -441,9 +392,9 @@ enum sci_status scic_sds_phy_start(struct isci_phy *iphy) return SCI_SUCCESS; } -enum sci_status scic_sds_phy_stop(struct isci_phy *iphy) +enum sci_status sci_phy_stop(struct isci_phy *iphy) { - enum scic_sds_phy_states state = iphy->sm.current_state_id; + enum sci_phy_states state = iphy->sm.current_state_id; switch (state) { case SCI_PHY_SUB_INITIAL: @@ -467,9 +418,9 @@ enum sci_status scic_sds_phy_stop(struct isci_phy *iphy) return SCI_SUCCESS; } -enum sci_status scic_sds_phy_reset(struct isci_phy *iphy) +enum sci_status sci_phy_reset(struct isci_phy *iphy) { - enum scic_sds_phy_states state = iphy->sm.current_state_id; + enum sci_phy_states state = iphy->sm.current_state_id; if (state != SCI_PHY_READY) { dev_dbg(sciphy_to_dev(iphy), @@ -481,9 +432,9 @@ enum sci_status scic_sds_phy_reset(struct isci_phy *iphy) return SCI_SUCCESS; } -enum sci_status scic_sds_phy_consume_power_handler(struct isci_phy *iphy) +enum sci_status sci_phy_consume_power_handler(struct isci_phy *iphy) { - enum scic_sds_phy_states state = iphy->sm.current_state_id; + enum sci_phy_states state = iphy->sm.current_state_id; switch (state) { case SCI_PHY_SUB_AWAIT_SAS_POWER: { @@ -528,55 +479,37 @@ enum sci_status scic_sds_phy_consume_power_handler(struct isci_phy *iphy) } } -/* - * ***************************************************************************** - * * SCIC SDS PHY HELPER FUNCTIONS - * ***************************************************************************** */ - - -/** - * - * @sci_phy: The phy object that received SAS PHY DETECTED. - * - * This method continues the link training for the phy as if it were a SAS PHY - * instead of a SATA PHY. This is done because the completion queue had a SAS - * PHY DETECTED event when the state machine was expecting a SATA PHY event. - * none - */ -static void scic_sds_phy_start_sas_link_training( - struct isci_phy *iphy) +static void sci_phy_start_sas_link_training(struct isci_phy *iphy) { + /* continue the link training for the phy as if it were a SAS PHY + * instead of a SATA PHY. This is done because the completion queue had a SAS + * PHY DETECTED event when the state machine was expecting a SATA PHY event. + */ u32 phy_control; - phy_control = - readl(&iphy->link_layer_registers->phy_configuration); + phy_control = readl(&iphy->link_layer_registers->phy_configuration); phy_control |= SCU_SAS_PCFG_GEN_BIT(SATA_SPINUP_HOLD); writel(phy_control, - &iphy->link_layer_registers->phy_configuration); + &iphy->link_layer_registers->phy_configuration); sci_change_state(&iphy->sm, SCI_PHY_SUB_AWAIT_SAS_SPEED_EN); iphy->protocol = SCIC_SDS_PHY_PROTOCOL_SAS; } -/** - * - * @sci_phy: The phy object that received a SATA SPINUP HOLD event - * - * This method continues the link training for the phy as if it were a SATA PHY - * instead of a SAS PHY. This is done because the completion queue had a SATA - * SPINUP HOLD event when the state machine was expecting a SAS PHY event. none - */ -static void scic_sds_phy_start_sata_link_training( - struct isci_phy *iphy) +static void sci_phy_start_sata_link_training(struct isci_phy *iphy) { + /* This method continues the link training for the phy as if it were a SATA PHY + * instead of a SAS PHY. This is done because the completion queue had a SATA + * SPINUP HOLD event when the state machine was expecting a SAS PHY event. none + */ sci_change_state(&iphy->sm, SCI_PHY_SUB_AWAIT_SATA_POWER); iphy->protocol = SCIC_SDS_PHY_PROTOCOL_SATA; } /** - * scic_sds_phy_complete_link_training - perform processing common to + * sci_phy_complete_link_training - perform processing common to * all protocols upon completion of link training. * @sci_phy: This parameter specifies the phy object for which link training * has completed. @@ -586,30 +519,28 @@ static void scic_sds_phy_start_sata_link_training( * sub-state machine. * */ -static void scic_sds_phy_complete_link_training( - struct isci_phy *iphy, - enum sas_linkrate max_link_rate, - u32 next_state) +static void sci_phy_complete_link_training(struct isci_phy *iphy, + enum sas_linkrate max_link_rate, + u32 next_state) { iphy->max_negotiated_speed = max_link_rate; sci_change_state(&iphy->sm, next_state); } -enum sci_status scic_sds_phy_event_handler(struct isci_phy *iphy, - u32 event_code) +enum sci_status sci_phy_event_handler(struct isci_phy *iphy, u32 event_code) { - enum scic_sds_phy_states state = iphy->sm.current_state_id; + enum sci_phy_states state = iphy->sm.current_state_id; switch (state) { case SCI_PHY_SUB_AWAIT_OSSP_EN: switch (scu_get_event_code(event_code)) { case SCU_EVENT_SAS_PHY_DETECTED: - scic_sds_phy_start_sas_link_training(iphy); + sci_phy_start_sas_link_training(iphy); iphy->is_in_link_training = true; break; case SCU_EVENT_SATA_SPINUP_HOLD: - scic_sds_phy_start_sata_link_training(iphy); + sci_phy_start_sata_link_training(iphy); iphy->is_in_link_training = true; break; default: @@ -630,30 +561,24 @@ enum sci_status scic_sds_phy_event_handler(struct isci_phy *iphy, break; case SCU_EVENT_SAS_15: case SCU_EVENT_SAS_15_SSC: - scic_sds_phy_complete_link_training( - iphy, - SAS_LINK_RATE_1_5_GBPS, - SCI_PHY_SUB_AWAIT_IAF_UF); + sci_phy_complete_link_training(iphy, SAS_LINK_RATE_1_5_GBPS, + SCI_PHY_SUB_AWAIT_IAF_UF); break; case SCU_EVENT_SAS_30: case SCU_EVENT_SAS_30_SSC: - scic_sds_phy_complete_link_training( - iphy, - SAS_LINK_RATE_3_0_GBPS, - SCI_PHY_SUB_AWAIT_IAF_UF); + sci_phy_complete_link_training(iphy, SAS_LINK_RATE_3_0_GBPS, + SCI_PHY_SUB_AWAIT_IAF_UF); break; case SCU_EVENT_SAS_60: case SCU_EVENT_SAS_60_SSC: - scic_sds_phy_complete_link_training( - iphy, - SAS_LINK_RATE_6_0_GBPS, - SCI_PHY_SUB_AWAIT_IAF_UF); + sci_phy_complete_link_training(iphy, SAS_LINK_RATE_6_0_GBPS, + SCI_PHY_SUB_AWAIT_IAF_UF); break; case SCU_EVENT_SATA_SPINUP_HOLD: /* * We were doing SAS PHY link training and received a SATA PHY event * continue OOB/SN as if this were a SATA PHY */ - scic_sds_phy_start_sata_link_training(iphy); + sci_phy_start_sata_link_training(iphy); break; case SCU_EVENT_LINK_FAILURE: /* Link failure change state back to the starting state */ @@ -673,14 +598,14 @@ enum sci_status scic_sds_phy_event_handler(struct isci_phy *iphy, switch (scu_get_event_code(event_code)) { case SCU_EVENT_SAS_PHY_DETECTED: /* Backup the state machine */ - scic_sds_phy_start_sas_link_training(iphy); + sci_phy_start_sas_link_training(iphy); break; case SCU_EVENT_SATA_SPINUP_HOLD: /* We were doing SAS PHY link training and received a * SATA PHY event continue OOB/SN as if this were a * SATA PHY */ - scic_sds_phy_start_sata_link_training(iphy); + sci_phy_start_sata_link_training(iphy); break; case SCU_EVENT_RECEIVED_IDENTIFY_TIMEOUT: case SCU_EVENT_LINK_FAILURE: @@ -727,7 +652,7 @@ enum sci_status scic_sds_phy_event_handler(struct isci_phy *iphy, /* There has been a change in the phy type before OOB/SN for the * SATA finished start down the SAS link traning path. */ - scic_sds_phy_start_sas_link_training(iphy); + sci_phy_start_sas_link_training(iphy); break; default: @@ -760,7 +685,7 @@ enum sci_status scic_sds_phy_event_handler(struct isci_phy *iphy, /* There has been a change in the phy type before OOB/SN for the * SATA finished start down the SAS link traning path. */ - scic_sds_phy_start_sas_link_training(iphy); + sci_phy_start_sas_link_training(iphy); break; default: dev_warn(sciphy_to_dev(iphy), @@ -781,24 +706,18 @@ enum sci_status scic_sds_phy_event_handler(struct isci_phy *iphy, break; case SCU_EVENT_SATA_15: case SCU_EVENT_SATA_15_SSC: - scic_sds_phy_complete_link_training( - iphy, - SAS_LINK_RATE_1_5_GBPS, - SCI_PHY_SUB_AWAIT_SIG_FIS_UF); + sci_phy_complete_link_training(iphy, SAS_LINK_RATE_1_5_GBPS, + SCI_PHY_SUB_AWAIT_SIG_FIS_UF); break; case SCU_EVENT_SATA_30: case SCU_EVENT_SATA_30_SSC: - scic_sds_phy_complete_link_training( - iphy, - SAS_LINK_RATE_3_0_GBPS, - SCI_PHY_SUB_AWAIT_SIG_FIS_UF); + sci_phy_complete_link_training(iphy, SAS_LINK_RATE_3_0_GBPS, + SCI_PHY_SUB_AWAIT_SIG_FIS_UF); break; case SCU_EVENT_SATA_60: case SCU_EVENT_SATA_60_SSC: - scic_sds_phy_complete_link_training( - iphy, - SAS_LINK_RATE_6_0_GBPS, - SCI_PHY_SUB_AWAIT_SIG_FIS_UF); + sci_phy_complete_link_training(iphy, SAS_LINK_RATE_6_0_GBPS, + SCI_PHY_SUB_AWAIT_SIG_FIS_UF); break; case SCU_EVENT_LINK_FAILURE: /* Link failure change state back to the starting state */ @@ -808,7 +727,7 @@ enum sci_status scic_sds_phy_event_handler(struct isci_phy *iphy, /* * There has been a change in the phy type before OOB/SN for the * SATA finished start down the SAS link traning path. */ - scic_sds_phy_start_sas_link_training(iphy); + sci_phy_start_sas_link_training(iphy); break; default: dev_warn(sciphy_to_dev(iphy), @@ -851,7 +770,7 @@ enum sci_status scic_sds_phy_event_handler(struct isci_phy *iphy, case SCU_EVENT_BROADCAST_CHANGE: /* Broadcast change received. Notify the port. */ if (phy_get_non_dummy_port(iphy) != NULL) - scic_sds_port_broadcast_change_received(iphy->owning_port, iphy); + sci_port_broadcast_change_received(iphy->owning_port, iphy); else iphy->bcn_received_while_port_unassigned = true; break; @@ -886,10 +805,9 @@ enum sci_status scic_sds_phy_event_handler(struct isci_phy *iphy, } } -enum sci_status scic_sds_phy_frame_handler(struct isci_phy *iphy, - u32 frame_index) +enum sci_status sci_phy_frame_handler(struct isci_phy *iphy, u32 frame_index) { - enum scic_sds_phy_states state = iphy->sm.current_state_id; + enum sci_phy_states state = iphy->sm.current_state_id; struct isci_host *ihost = iphy->owning_port->owning_controller; enum sci_status result; unsigned long flags; @@ -899,9 +817,9 @@ enum sci_status scic_sds_phy_frame_handler(struct isci_phy *iphy, u32 *frame_words; struct sas_identify_frame iaf; - result = scic_sds_unsolicited_frame_control_get_header(&ihost->uf_control, - frame_index, - (void **)&frame_words); + result = sci_unsolicited_frame_control_get_header(&ihost->uf_control, + frame_index, + (void **)&frame_words); if (result != SCI_SUCCESS) return result; @@ -933,15 +851,15 @@ enum sci_status scic_sds_phy_frame_handler(struct isci_phy *iphy, "unexpected frame id %x\n", __func__, frame_index); - scic_sds_controller_release_frame(ihost, frame_index); + sci_controller_release_frame(ihost, frame_index); return result; } case SCI_PHY_SUB_AWAIT_SIG_FIS_UF: { struct dev_to_host_fis *frame_header; u32 *fis_frame_data; - result = scic_sds_unsolicited_frame_control_get_header( - &(scic_sds_phy_get_controller(iphy)->uf_control), + result = sci_unsolicited_frame_control_get_header( + &(sci_phy_get_controller(iphy)->uf_control), frame_index, (void **)&frame_header); @@ -950,14 +868,14 @@ enum sci_status scic_sds_phy_frame_handler(struct isci_phy *iphy, if ((frame_header->fis_type == FIS_REGD2H) && !(frame_header->status & ATA_BUSY)) { - scic_sds_unsolicited_frame_control_get_buffer(&ihost->uf_control, - frame_index, - (void **)&fis_frame_data); + sci_unsolicited_frame_control_get_buffer(&ihost->uf_control, + frame_index, + (void **)&fis_frame_data); spin_lock_irqsave(&iphy->sas_phy.frame_rcvd_lock, flags); - scic_sds_controller_copy_sata_response(&iphy->frame_rcvd.fis, - frame_header, - fis_frame_data); + sci_controller_copy_sata_response(&iphy->frame_rcvd.fis, + frame_header, + fis_frame_data); spin_unlock_irqrestore(&iphy->sas_phy.frame_rcvd_lock, flags); /* got IAF we can now go to the await spinup semaphore state */ @@ -971,7 +889,7 @@ enum sci_status scic_sds_phy_frame_handler(struct isci_phy *iphy, __func__, frame_index); /* Regardless of the result we are done with this frame with it */ - scic_sds_controller_release_frame(ihost, frame_index); + sci_controller_release_frame(ihost, frame_index); return result; } @@ -983,7 +901,7 @@ enum sci_status scic_sds_phy_frame_handler(struct isci_phy *iphy, } -static void scic_sds_phy_starting_initial_substate_enter(struct sci_base_state_machine *sm) +static void sci_phy_starting_initial_substate_enter(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); @@ -991,71 +909,71 @@ static void scic_sds_phy_starting_initial_substate_enter(struct sci_base_state_m sci_change_state(&iphy->sm, SCI_PHY_SUB_AWAIT_OSSP_EN); } -static void scic_sds_phy_starting_await_sas_power_substate_enter(struct sci_base_state_machine *sm) +static void sci_phy_starting_await_sas_power_substate_enter(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); struct isci_host *ihost = iphy->owning_port->owning_controller; - scic_sds_controller_power_control_queue_insert(ihost, iphy); + sci_controller_power_control_queue_insert(ihost, iphy); } -static void scic_sds_phy_starting_await_sas_power_substate_exit(struct sci_base_state_machine *sm) +static void sci_phy_starting_await_sas_power_substate_exit(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); struct isci_host *ihost = iphy->owning_port->owning_controller; - scic_sds_controller_power_control_queue_remove(ihost, iphy); + sci_controller_power_control_queue_remove(ihost, iphy); } -static void scic_sds_phy_starting_await_sata_power_substate_enter(struct sci_base_state_machine *sm) +static void sci_phy_starting_await_sata_power_substate_enter(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); struct isci_host *ihost = iphy->owning_port->owning_controller; - scic_sds_controller_power_control_queue_insert(ihost, iphy); + sci_controller_power_control_queue_insert(ihost, iphy); } -static void scic_sds_phy_starting_await_sata_power_substate_exit(struct sci_base_state_machine *sm) +static void sci_phy_starting_await_sata_power_substate_exit(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); struct isci_host *ihost = iphy->owning_port->owning_controller; - scic_sds_controller_power_control_queue_remove(ihost, iphy); + sci_controller_power_control_queue_remove(ihost, iphy); } -static void scic_sds_phy_starting_await_sata_phy_substate_enter(struct sci_base_state_machine *sm) +static void sci_phy_starting_await_sata_phy_substate_enter(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); sci_mod_timer(&iphy->sata_timer, SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT); } -static void scic_sds_phy_starting_await_sata_phy_substate_exit(struct sci_base_state_machine *sm) +static void sci_phy_starting_await_sata_phy_substate_exit(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); sci_del_timer(&iphy->sata_timer); } -static void scic_sds_phy_starting_await_sata_speed_substate_enter(struct sci_base_state_machine *sm) +static void sci_phy_starting_await_sata_speed_substate_enter(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); sci_mod_timer(&iphy->sata_timer, SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT); } -static void scic_sds_phy_starting_await_sata_speed_substate_exit(struct sci_base_state_machine *sm) +static void sci_phy_starting_await_sata_speed_substate_exit(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); sci_del_timer(&iphy->sata_timer); } -static void scic_sds_phy_starting_await_sig_fis_uf_substate_enter(struct sci_base_state_machine *sm) +static void sci_phy_starting_await_sig_fis_uf_substate_enter(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); - if (scic_sds_port_link_detected(iphy->owning_port, iphy)) { + if (sci_port_link_detected(iphy->owning_port, iphy)) { /* * Clear the PE suspend condition so we can actually @@ -1063,7 +981,7 @@ static void scic_sds_phy_starting_await_sig_fis_uf_substate_enter(struct sci_bas * The hardware will not respond to the XRDY until the PE * suspend condition is cleared. */ - scic_sds_phy_resume(iphy); + sci_phy_resume(iphy); sci_mod_timer(&iphy->sata_timer, SCIC_SDS_SIGNATURE_FIS_TIMEOUT); @@ -1071,14 +989,14 @@ static void scic_sds_phy_starting_await_sig_fis_uf_substate_enter(struct sci_bas iphy->is_in_link_training = false; } -static void scic_sds_phy_starting_await_sig_fis_uf_substate_exit(struct sci_base_state_machine *sm) +static void sci_phy_starting_await_sig_fis_uf_substate_exit(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); sci_del_timer(&iphy->sata_timer); } -static void scic_sds_phy_starting_final_substate_enter(struct sci_base_state_machine *sm) +static void sci_phy_starting_final_substate_enter(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); @@ -1169,7 +1087,7 @@ static void scu_link_layer_tx_hard_reset( &iphy->link_layer_registers->phy_configuration); } -static void scic_sds_phy_stopped_state_enter(struct sci_base_state_machine *sm) +static void sci_phy_stopped_state_enter(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); @@ -1182,12 +1100,12 @@ static void scic_sds_phy_stopped_state_enter(struct sci_base_state_machine *sm) scu_link_layer_stop_protocol_engine(iphy); if (iphy->sm.previous_state_id != SCI_PHY_INITIAL) - scic_sds_controller_link_down(scic_sds_phy_get_controller(iphy), + sci_controller_link_down(sci_phy_get_controller(iphy), phy_get_non_dummy_port(iphy), iphy); } -static void scic_sds_phy_starting_state_enter(struct sci_base_state_machine *sm) +static void sci_phy_starting_state_enter(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); @@ -1199,31 +1117,31 @@ static void scic_sds_phy_starting_state_enter(struct sci_base_state_machine *sm) iphy->bcn_received_while_port_unassigned = false; if (iphy->sm.previous_state_id == SCI_PHY_READY) - scic_sds_controller_link_down(scic_sds_phy_get_controller(iphy), + sci_controller_link_down(sci_phy_get_controller(iphy), phy_get_non_dummy_port(iphy), iphy); sci_change_state(&iphy->sm, SCI_PHY_SUB_INITIAL); } -static void scic_sds_phy_ready_state_enter(struct sci_base_state_machine *sm) +static void sci_phy_ready_state_enter(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); - scic_sds_controller_link_up(scic_sds_phy_get_controller(iphy), + sci_controller_link_up(sci_phy_get_controller(iphy), phy_get_non_dummy_port(iphy), iphy); } -static void scic_sds_phy_ready_state_exit(struct sci_base_state_machine *sm) +static void sci_phy_ready_state_exit(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); - scic_sds_phy_suspend(iphy); + sci_phy_suspend(iphy); } -static void scic_sds_phy_resetting_state_enter(struct sci_base_state_machine *sm) +static void sci_phy_resetting_state_enter(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); @@ -1231,7 +1149,7 @@ static void scic_sds_phy_resetting_state_enter(struct sci_base_state_machine *sm * the resetting state we don't notify the user regarding link up and * link down notifications */ - scic_sds_port_deactivate_phy(iphy->owning_port, iphy, false); + sci_port_deactivate_phy(iphy->owning_port, iphy, false); if (iphy->protocol == SCIC_SDS_PHY_PROTOCOL_SAS) { scu_link_layer_tx_hard_reset(iphy); @@ -1243,57 +1161,57 @@ static void scic_sds_phy_resetting_state_enter(struct sci_base_state_machine *sm } } -static const struct sci_base_state scic_sds_phy_state_table[] = { +static const struct sci_base_state sci_phy_state_table[] = { [SCI_PHY_INITIAL] = { }, [SCI_PHY_STOPPED] = { - .enter_state = scic_sds_phy_stopped_state_enter, + .enter_state = sci_phy_stopped_state_enter, }, [SCI_PHY_STARTING] = { - .enter_state = scic_sds_phy_starting_state_enter, + .enter_state = sci_phy_starting_state_enter, }, [SCI_PHY_SUB_INITIAL] = { - .enter_state = scic_sds_phy_starting_initial_substate_enter, + .enter_state = sci_phy_starting_initial_substate_enter, }, [SCI_PHY_SUB_AWAIT_OSSP_EN] = { }, [SCI_PHY_SUB_AWAIT_SAS_SPEED_EN] = { }, [SCI_PHY_SUB_AWAIT_IAF_UF] = { }, [SCI_PHY_SUB_AWAIT_SAS_POWER] = { - .enter_state = scic_sds_phy_starting_await_sas_power_substate_enter, - .exit_state = scic_sds_phy_starting_await_sas_power_substate_exit, + .enter_state = sci_phy_starting_await_sas_power_substate_enter, + .exit_state = sci_phy_starting_await_sas_power_substate_exit, }, [SCI_PHY_SUB_AWAIT_SATA_POWER] = { - .enter_state = scic_sds_phy_starting_await_sata_power_substate_enter, - .exit_state = scic_sds_phy_starting_await_sata_power_substate_exit + .enter_state = sci_phy_starting_await_sata_power_substate_enter, + .exit_state = sci_phy_starting_await_sata_power_substate_exit }, [SCI_PHY_SUB_AWAIT_SATA_PHY_EN] = { - .enter_state = scic_sds_phy_starting_await_sata_phy_substate_enter, - .exit_state = scic_sds_phy_starting_await_sata_phy_substate_exit + .enter_state = sci_phy_starting_await_sata_phy_substate_enter, + .exit_state = sci_phy_starting_await_sata_phy_substate_exit }, [SCI_PHY_SUB_AWAIT_SATA_SPEED_EN] = { - .enter_state = scic_sds_phy_starting_await_sata_speed_substate_enter, - .exit_state = scic_sds_phy_starting_await_sata_speed_substate_exit + .enter_state = sci_phy_starting_await_sata_speed_substate_enter, + .exit_state = sci_phy_starting_await_sata_speed_substate_exit }, [SCI_PHY_SUB_AWAIT_SIG_FIS_UF] = { - .enter_state = scic_sds_phy_starting_await_sig_fis_uf_substate_enter, - .exit_state = scic_sds_phy_starting_await_sig_fis_uf_substate_exit + .enter_state = sci_phy_starting_await_sig_fis_uf_substate_enter, + .exit_state = sci_phy_starting_await_sig_fis_uf_substate_exit }, [SCI_PHY_SUB_FINAL] = { - .enter_state = scic_sds_phy_starting_final_substate_enter, + .enter_state = sci_phy_starting_final_substate_enter, }, [SCI_PHY_READY] = { - .enter_state = scic_sds_phy_ready_state_enter, - .exit_state = scic_sds_phy_ready_state_exit, + .enter_state = sci_phy_ready_state_enter, + .exit_state = sci_phy_ready_state_exit, }, [SCI_PHY_RESETTING] = { - .enter_state = scic_sds_phy_resetting_state_enter, + .enter_state = sci_phy_resetting_state_enter, }, [SCI_PHY_FINAL] = { }, }; -void scic_sds_phy_construct(struct isci_phy *iphy, +void sci_phy_construct(struct isci_phy *iphy, struct isci_port *iport, u8 phy_index) { - sci_init_sm(&iphy->sm, scic_sds_phy_state_table, SCI_PHY_INITIAL); + sci_init_sm(&iphy->sm, sci_phy_state_table, SCI_PHY_INITIAL); /* Copy the rest of the input data to our locals */ iphy->owning_port = iport; @@ -1309,14 +1227,13 @@ void scic_sds_phy_construct(struct isci_phy *iphy, void isci_phy_init(struct isci_phy *iphy, struct isci_host *ihost, int index) { - union scic_oem_parameters oem; + struct sci_oem_params *oem = &ihost->oem_parameters; u64 sci_sas_addr; __be64 sas_addr; - scic_oem_parameters_get(ihost, &oem); - sci_sas_addr = oem.sds1.phys[index].sas_address.high; + sci_sas_addr = oem->phys[index].sas_address.high; sci_sas_addr <<= 32; - sci_sas_addr |= oem.sds1.phys[index].sas_address.low; + sci_sas_addr |= oem->phys[index].sas_address.low; sas_addr = cpu_to_be64(sci_sas_addr); memcpy(iphy->sas_addr, &sas_addr, sizeof(sas_addr)); @@ -1365,14 +1282,14 @@ int isci_phy_control(struct asd_sas_phy *sas_phy, switch (func) { case PHY_FUNC_DISABLE: spin_lock_irqsave(&ihost->scic_lock, flags); - scic_sds_phy_stop(iphy); + sci_phy_stop(iphy); spin_unlock_irqrestore(&ihost->scic_lock, flags); break; case PHY_FUNC_LINK_RESET: spin_lock_irqsave(&ihost->scic_lock, flags); - scic_sds_phy_stop(iphy); - scic_sds_phy_start(iphy); + sci_phy_stop(iphy); + sci_phy_start(iphy); spin_unlock_irqrestore(&ihost->scic_lock, flags); break; diff --git a/drivers/scsi/isci/phy.h b/drivers/scsi/isci/phy.h index 19aa444517b..5d2c1b4906a 100644 --- a/drivers/scsi/isci/phy.h +++ b/drivers/scsi/isci/phy.h @@ -76,7 +76,7 @@ */ #define SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT 250 -enum scic_sds_phy_protocol { +enum sci_phy_protocol { SCIC_SDS_PHY_PROTOCOL_UNKNOWN, SCIC_SDS_PHY_PROTOCOL_SAS, SCIC_SDS_PHY_PROTOCOL_SATA, @@ -95,7 +95,7 @@ struct isci_phy { struct sci_base_state_machine sm; struct isci_port *owning_port; enum sas_linkrate max_negotiated_speed; - enum scic_sds_phy_protocol protocol; + enum sci_phy_protocol protocol; u8 phy_index; bool bcn_received_while_port_unassigned; bool is_in_link_training; @@ -118,7 +118,7 @@ static inline struct isci_phy *to_iphy(struct asd_sas_phy *sas_phy) return iphy; } -struct scic_phy_cap { +struct sci_phy_cap { union { struct { /* @@ -147,7 +147,7 @@ struct scic_phy_cap { } __packed; /* this data structure reflects the link layer transmit identification reg */ -struct scic_phy_proto { +struct sci_phy_proto { union { struct { u16 _r_a:1; @@ -167,12 +167,12 @@ struct scic_phy_proto { /** - * struct scic_phy_properties - This structure defines the properties common to + * struct sci_phy_properties - This structure defines the properties common to * all phys that can be retrieved. * * */ -struct scic_phy_properties { +struct sci_phy_properties { /** * This field specifies the port that currently contains the * supplied phy. This field may be set to NULL @@ -194,12 +194,12 @@ struct scic_phy_properties { }; /** - * struct scic_sas_phy_properties - This structure defines the properties, + * struct sci_sas_phy_properties - This structure defines the properties, * specific to a SAS phy, that can be retrieved. * * */ -struct scic_sas_phy_properties { +struct sci_sas_phy_properties { /** * This field delineates the Identify Address Frame received * from the remote end point. @@ -210,17 +210,17 @@ struct scic_sas_phy_properties { * This field delineates the Phy capabilities structure received * from the remote end point. */ - struct scic_phy_cap rcvd_cap; + struct sci_phy_cap rcvd_cap; }; /** - * struct scic_sata_phy_properties - This structure defines the properties, + * struct sci_sata_phy_properties - This structure defines the properties, * specific to a SATA phy, that can be retrieved. * * */ -struct scic_sata_phy_properties { +struct sci_sata_phy_properties { /** * This field delineates the signature FIS received from the * attached target. @@ -236,12 +236,12 @@ struct scic_sata_phy_properties { }; /** - * enum scic_phy_counter_id - This enumeration depicts the various pieces of + * enum sci_phy_counter_id - This enumeration depicts the various pieces of * optional information that can be retrieved for a specific phy. * * */ -enum scic_phy_counter_id { +enum sci_phy_counter_id { /** * This PHY information field tracks the number of frames received. */ @@ -344,7 +344,7 @@ enum scic_phy_counter_id { SCIC_PHY_COUNTER_SN_DWORD_SYNC_ERROR }; -enum scic_sds_phy_states { +enum sci_phy_states { /** * Simply the initial state for the base domain state machine. */ @@ -441,77 +441,77 @@ enum scic_sds_phy_states { }; /** - * scic_sds_phy_get_index() - + * sci_phy_get_index() - * * This macro returns the phy index for the specified phy */ -#define scic_sds_phy_get_index(phy) \ +#define sci_phy_get_index(phy) \ ((phy)->phy_index) /** - * scic_sds_phy_get_controller() - This macro returns the controller for this + * sci_phy_get_controller() - This macro returns the controller for this * phy * * */ -#define scic_sds_phy_get_controller(phy) \ - (scic_sds_port_get_controller((phy)->owning_port)) +#define sci_phy_get_controller(phy) \ + (sci_port_get_controller((phy)->owning_port)) -void scic_sds_phy_construct( +void sci_phy_construct( struct isci_phy *iphy, struct isci_port *iport, u8 phy_index); struct isci_port *phy_get_non_dummy_port(struct isci_phy *iphy); -void scic_sds_phy_set_port( +void sci_phy_set_port( struct isci_phy *iphy, struct isci_port *iport); -enum sci_status scic_sds_phy_initialize( +enum sci_status sci_phy_initialize( struct isci_phy *iphy, struct scu_transport_layer_registers __iomem *transport_layer_registers, struct scu_link_layer_registers __iomem *link_layer_registers); -enum sci_status scic_sds_phy_start( +enum sci_status sci_phy_start( struct isci_phy *iphy); -enum sci_status scic_sds_phy_stop( +enum sci_status sci_phy_stop( struct isci_phy *iphy); -enum sci_status scic_sds_phy_reset( +enum sci_status sci_phy_reset( struct isci_phy *iphy); -void scic_sds_phy_resume( +void sci_phy_resume( struct isci_phy *iphy); -void scic_sds_phy_setup_transport( +void sci_phy_setup_transport( struct isci_phy *iphy, u32 device_id); -enum sci_status scic_sds_phy_event_handler( +enum sci_status sci_phy_event_handler( struct isci_phy *iphy, u32 event_code); -enum sci_status scic_sds_phy_frame_handler( +enum sci_status sci_phy_frame_handler( struct isci_phy *iphy, u32 frame_index); -enum sci_status scic_sds_phy_consume_power_handler( +enum sci_status sci_phy_consume_power_handler( struct isci_phy *iphy); -void scic_sds_phy_get_sas_address( +void sci_phy_get_sas_address( struct isci_phy *iphy, struct sci_sas_address *sas_address); -void scic_sds_phy_get_attached_sas_address( +void sci_phy_get_attached_sas_address( struct isci_phy *iphy, struct sci_sas_address *sas_address); -struct scic_phy_proto; -void scic_sds_phy_get_protocols( +struct sci_phy_proto; +void sci_phy_get_protocols( struct isci_phy *iphy, - struct scic_phy_proto *protocols); + struct sci_phy_proto *protocols); enum sas_linkrate sci_phy_linkrate(struct isci_phy *iphy); struct isci_host; diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index c434d5a0eff..1822ed68409 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -74,57 +74,35 @@ static void isci_port_change_state(struct isci_port *iport, enum isci_status sta spin_unlock_irqrestore(&iport->state_lock, flags); } -/* - * This function will indicate which protocols are supported by this port. - * @sci_port: a handle corresponding to the SAS port for which to return the - * supported protocols. - * @protocols: This parameter specifies a pointer to a data structure - * which the core will copy the protocol values for the port from the - * transmit_identification register. - */ -static void -scic_sds_port_get_protocols(struct isci_port *iport, - struct scic_phy_proto *protocols) +static void sci_port_get_protocols(struct isci_port *iport, struct sci_phy_proto *proto) { u8 index; - protocols->all = 0; - + proto->all = 0; for (index = 0; index < SCI_MAX_PHYS; index++) { - if (iport->phy_table[index] != NULL) { - scic_sds_phy_get_protocols(iport->phy_table[index], - protocols); - } + struct isci_phy *iphy = iport->phy_table[index]; + + if (!iphy) + continue; + sci_phy_get_protocols(iphy, proto); } } -/** - * This method requests a list (mask) of the phys contained in the supplied SAS - * port. - * @sci_port: a handle corresponding to the SAS port for which to return the - * phy mask. - * - * Return a bit mask indicating which phys are a part of this port. Each bit - * corresponds to a phy identifier (e.g. bit 0 = phy id 0). - */ -static u32 scic_sds_port_get_phys(struct isci_port *iport) +static u32 sci_port_get_phys(struct isci_port *iport) { u32 index; u32 mask; mask = 0; - - for (index = 0; index < SCI_MAX_PHYS; index++) { - if (iport->phy_table[index] != NULL) { + for (index = 0; index < SCI_MAX_PHYS; index++) + if (iport->phy_table[index]) mask |= (1 << index); - } - } return mask; } /** - * scic_port_get_properties() - This method simply returns the properties + * sci_port_get_properties() - This method simply returns the properties * regarding the port, such as: physical index, protocols, sas address, etc. * @port: this parameter specifies the port for which to retrieve the physical * index. @@ -136,22 +114,22 @@ static u32 scic_sds_port_get_phys(struct isci_port *iport) * value is returned if the specified port is not valid. When this value is * returned, no data is copied to the properties output parameter. */ -static enum sci_status scic_port_get_properties(struct isci_port *iport, - struct scic_port_properties *prop) +static enum sci_status sci_port_get_properties(struct isci_port *iport, + struct sci_port_properties *prop) { if (!iport || iport->logical_port_index == SCIC_SDS_DUMMY_PORT) return SCI_FAILURE_INVALID_PORT; - prop->index = iport->logical_port_index; - prop->phy_mask = scic_sds_port_get_phys(iport); - scic_sds_port_get_sas_address(iport, &prop->local.sas_address); - scic_sds_port_get_protocols(iport, &prop->local.protocols); - scic_sds_port_get_attached_sas_address(iport, &prop->remote.sas_address); + prop->index = iport->logical_port_index; + prop->phy_mask = sci_port_get_phys(iport); + sci_port_get_sas_address(iport, &prop->local.sas_address); + sci_port_get_protocols(iport, &prop->local.protocols); + sci_port_get_attached_sas_address(iport, &prop->remote.sas_address); return SCI_SUCCESS; } -static void scic_port_bcn_enable(struct isci_port *iport) +static void sci_port_bcn_enable(struct isci_port *iport) { struct isci_phy *iphy; u32 val; @@ -167,7 +145,7 @@ static void scic_port_bcn_enable(struct isci_port *iport) } } -/* called under scic_lock to stabilize phy:port associations */ +/* called under sci_lock to stabilize phy:port associations */ void isci_port_bcn_enable(struct isci_host *ihost, struct isci_port *iport) { int i; @@ -209,7 +187,7 @@ static void isci_port_bc_change_received(struct isci_host *ihost, ihost->sas_ha.notify_port_event(&iphy->sas_phy, PORTE_BROADCAST_RCVD); } - scic_port_bcn_enable(iport); + sci_port_bcn_enable(iport); } static void isci_port_link_up(struct isci_host *isci_host, @@ -217,7 +195,7 @@ static void isci_port_link_up(struct isci_host *isci_host, struct isci_phy *iphy) { unsigned long flags; - struct scic_port_properties properties; + struct sci_port_properties properties; unsigned long success = true; BUG_ON(iphy->isci_port != NULL); @@ -232,7 +210,7 @@ static void isci_port_link_up(struct isci_host *isci_host, isci_port_change_state(iphy->isci_port, isci_starting); - scic_port_get_properties(iport, &properties); + sci_port_get_properties(iport, &properties); if (iphy->protocol == SCIC_SDS_PHY_PROTOCOL_SATA) { u64 attached_sas_address; @@ -245,7 +223,7 @@ static void isci_port_link_up(struct isci_host *isci_host, * automagically assign a SAS address to the end device * for the purpose of creating a port. This SAS address * will not be the same as assigned to the PHY and needs - * to be obtained from struct scic_port_properties properties. + * to be obtained from struct sci_port_properties properties. */ attached_sas_address = properties.remote.sas_address.high; attached_sas_address <<= 32; @@ -399,50 +377,40 @@ static void isci_port_hard_reset_complete(struct isci_port *isci_port, * doesn't preclude all configurations. It merely ensures that a phy is part * of the allowable set of phy identifiers for that port. For example, one * could assign phy 3 to port 0 and no other phys. Please refer to - * scic_sds_port_is_phy_mask_valid() for information regarding whether the + * sci_port_is_phy_mask_valid() for information regarding whether the * phy_mask for a port can be supported. bool true if this is a valid phy * assignment for the port false if this is not a valid phy assignment for the * port */ -bool scic_sds_port_is_valid_phy_assignment(struct isci_port *iport, - u32 phy_index) +bool sci_port_is_valid_phy_assignment(struct isci_port *iport, u32 phy_index) { + struct isci_host *ihost = iport->owning_controller; + struct sci_user_parameters *user = &ihost->user_parameters; + /* Initialize to invalid value. */ u32 existing_phy_index = SCI_MAX_PHYS; u32 index; - if ((iport->physical_port_index == 1) && (phy_index != 1)) { + if ((iport->physical_port_index == 1) && (phy_index != 1)) return false; - } - if (iport->physical_port_index == 3 && phy_index != 3) { + if (iport->physical_port_index == 3 && phy_index != 3) return false; - } - if ( - (iport->physical_port_index == 2) - && ((phy_index == 0) || (phy_index == 1)) - ) { + if (iport->physical_port_index == 2 && + (phy_index == 0 || phy_index == 1)) return false; - } - for (index = 0; index < SCI_MAX_PHYS; index++) { - if ((iport->phy_table[index] != NULL) - && (index != phy_index)) { + for (index = 0; index < SCI_MAX_PHYS; index++) + if (iport->phy_table[index] && index != phy_index) existing_phy_index = index; - } - } - /* - * Ensure that all of the phys in the port are capable of - * operating at the same maximum link rate. */ - if ( - (existing_phy_index < SCI_MAX_PHYS) - && (iport->owning_controller->user_parameters.sds1.phys[ - phy_index].max_speed_generation != - iport->owning_controller->user_parameters.sds1.phys[ - existing_phy_index].max_speed_generation) - ) + /* Ensure that all of the phys in the port are capable of + * operating at the same maximum link rate. + */ + if (existing_phy_index < SCI_MAX_PHYS && + user->phys[phy_index].max_speed_generation != + user->phys[existing_phy_index].max_speed_generation) return false; return true; @@ -460,7 +428,7 @@ bool scic_sds_port_is_valid_phy_assignment(struct isci_port *iport, * phy mask can be supported. true if this is a valid phy assignment for the * port false if this is not a valid phy assignment for the port */ -static bool scic_sds_port_is_phy_mask_valid( +static bool sci_port_is_phy_mask_valid( struct isci_port *iport, u32 phy_mask) { @@ -493,10 +461,10 @@ static bool scic_sds_port_is_phy_mask_valid( * the port. Currently, the lowest order phy that is connected is returned. * This method returns a pointer to a SCIS_SDS_PHY object. NULL This value is * returned if there are no currently active (i.e. connected to a remote end - * point) phys contained in the port. All other values specify a struct scic_sds_phy + * point) phys contained in the port. All other values specify a struct sci_phy * object that is active in the port. */ -static struct isci_phy *scic_sds_port_get_a_connected_phy(struct isci_port *iport) +static struct isci_phy *sci_port_get_a_connected_phy(struct isci_port *iport) { u32 index; struct isci_phy *iphy; @@ -506,14 +474,14 @@ static struct isci_phy *scic_sds_port_get_a_connected_phy(struct isci_port *ipor * connected to the remote end-point. */ iphy = iport->phy_table[index]; - if (iphy && scic_sds_port_active_phy(iport, iphy)) + if (iphy && sci_port_active_phy(iport, iphy)) return iphy; } return NULL; } -static enum sci_status scic_sds_port_set_phy(struct isci_port *iport, struct isci_phy *iphy) +static enum sci_status sci_port_set_phy(struct isci_port *iport, struct isci_phy *iphy) { /* Check to see if we can add this phy to a port * that means that the phy is not part of a port and that the port does @@ -521,13 +489,13 @@ static enum sci_status scic_sds_port_set_phy(struct isci_port *iport, struct isc */ if (!iport->phy_table[iphy->phy_index] && !phy_get_non_dummy_port(iphy) && - scic_sds_port_is_valid_phy_assignment(iport, iphy->phy_index)) { + sci_port_is_valid_phy_assignment(iport, iphy->phy_index)) { /* Phy is being added in the stopped state so we are in MPC mode * make logical port index = physical port index */ iport->logical_port_index = iport->physical_port_index; iport->phy_table[iphy->phy_index] = iphy; - scic_sds_phy_set_port(iphy, iport); + sci_phy_set_port(iphy, iport); return SCI_SUCCESS; } @@ -535,8 +503,7 @@ static enum sci_status scic_sds_port_set_phy(struct isci_port *iport, struct isc return SCI_FAILURE; } -static enum sci_status scic_sds_port_clear_phy(struct isci_port *iport, - struct isci_phy *iphy) +static enum sci_status sci_port_clear_phy(struct isci_port *iport, struct isci_phy *iphy) { /* Make sure that this phy is part of this port */ if (iport->phy_table[iphy->phy_index] == iphy && @@ -544,7 +511,7 @@ static enum sci_status scic_sds_port_clear_phy(struct isci_port *iport, struct isci_host *ihost = iport->owning_controller; /* Yep it is assigned to this port so remove it */ - scic_sds_phy_set_port(iphy, &ihost->ports[SCI_MAX_PORTS]); + sci_phy_set_port(iphy, &ihost->ports[SCI_MAX_PORTS]); iport->phy_table[iphy->phy_index] = NULL; return SCI_SUCCESS; } @@ -552,45 +519,18 @@ static enum sci_status scic_sds_port_clear_phy(struct isci_port *iport, return SCI_FAILURE; } - -/** - * This method requests the SAS address for the supplied SAS port from the SCI - * implementation. - * @sci_port: a handle corresponding to the SAS port for which to return the - * SAS address. - * @sas_address: This parameter specifies a pointer to a SAS address structure - * into which the core will copy the SAS address for the port. - * - */ -void scic_sds_port_get_sas_address( - struct isci_port *iport, - struct sci_sas_address *sas_address) +void sci_port_get_sas_address(struct isci_port *iport, struct sci_sas_address *sas) { u32 index; - sas_address->high = 0; - sas_address->low = 0; - - for (index = 0; index < SCI_MAX_PHYS; index++) { - if (iport->phy_table[index] != NULL) { - scic_sds_phy_get_sas_address(iport->phy_table[index], sas_address); - } - } + sas->high = 0; + sas->low = 0; + for (index = 0; index < SCI_MAX_PHYS; index++) + if (iport->phy_table[index]) + sci_phy_get_sas_address(iport->phy_table[index], sas); } -/* - * This function requests the SAS address for the device directly attached to - * this SAS port. - * @sci_port: a handle corresponding to the SAS port for which to return the - * SAS address. - * @sas_address: This parameter specifies a pointer to a SAS address structure - * into which the core will copy the SAS address for the device directly - * attached to the port. - * - */ -void scic_sds_port_get_attached_sas_address( - struct isci_port *iport, - struct sci_sas_address *sas_address) +void sci_port_get_attached_sas_address(struct isci_port *iport, struct sci_sas_address *sas) { struct isci_phy *iphy; @@ -598,23 +538,22 @@ void scic_sds_port_get_attached_sas_address( * Ensure that the phy is both part of the port and currently * connected to the remote end-point. */ - iphy = scic_sds_port_get_a_connected_phy(iport); + iphy = sci_port_get_a_connected_phy(iport); if (iphy) { if (iphy->protocol != SCIC_SDS_PHY_PROTOCOL_SATA) { - scic_sds_phy_get_attached_sas_address(iphy, - sas_address); + sci_phy_get_attached_sas_address(iphy, sas); } else { - scic_sds_phy_get_sas_address(iphy, sas_address); - sas_address->low += iphy->phy_index; + sci_phy_get_sas_address(iphy, sas); + sas->low += iphy->phy_index; } } else { - sas_address->high = 0; - sas_address->low = 0; + sas->high = 0; + sas->low = 0; } } /** - * scic_sds_port_construct_dummy_rnc() - create dummy rnc for si workaround + * sci_port_construct_dummy_rnc() - create dummy rnc for si workaround * * @sci_port: logical port on which we need to create the remote node context * @rni: remote node index for this remote node context. @@ -623,7 +562,7 @@ void scic_sds_port_get_attached_sas_address( * This structure will be posted to the hardware to work around a scheduler * error in the hardware. */ -static void scic_sds_port_construct_dummy_rnc(struct isci_port *iport, u16 rni) +static void sci_port_construct_dummy_rnc(struct isci_port *iport, u16 rni) { union scu_remote_node_context *rnc; @@ -651,7 +590,7 @@ static void scic_sds_port_construct_dummy_rnc(struct isci_port *iport, u16 rni) * structure will be posted to the hardwre to work around a scheduler error * in the hardware. */ -static void scic_sds_port_construct_dummy_task(struct isci_port *iport, u16 tag) +static void sci_port_construct_dummy_task(struct isci_port *iport, u16 tag) { struct isci_host *ihost = iport->owning_controller; struct scu_task_context *task_context; @@ -671,7 +610,7 @@ static void scic_sds_port_construct_dummy_task(struct isci_port *iport, u16 tag) task_context->task_phase = 0x01; } -static void scic_sds_port_destroy_dummy_resources(struct isci_port *iport) +static void sci_port_destroy_dummy_resources(struct isci_port *iport) { struct isci_host *ihost = iport->owning_controller; @@ -679,93 +618,43 @@ static void scic_sds_port_destroy_dummy_resources(struct isci_port *iport) isci_free_tag(ihost, iport->reserved_tag); if (iport->reserved_rni != SCU_DUMMY_INDEX) - scic_sds_remote_node_table_release_remote_node_index(&ihost->available_remote_nodes, + sci_remote_node_table_release_remote_node_index(&ihost->available_remote_nodes, 1, iport->reserved_rni); iport->reserved_rni = SCU_DUMMY_INDEX; iport->reserved_tag = SCI_CONTROLLER_INVALID_IO_TAG; } -/** - * This method performs initialization of the supplied port. Initialization - * includes: - state machine initialization - member variable initialization - * - configuring the phy_mask - * @sci_port: - * @transport_layer_registers: - * @port_task_scheduler_registers: - * @port_configuration_regsiter: - * - * enum sci_status SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION This value is returned - * if the phy being added to the port - */ -enum sci_status scic_sds_port_initialize( - struct isci_port *iport, - void __iomem *port_task_scheduler_registers, - void __iomem *port_configuration_regsiter, - void __iomem *viit_registers) -{ - iport->port_task_scheduler_registers = port_task_scheduler_registers; - iport->port_pe_configuration_register = port_configuration_regsiter; - iport->viit_registers = viit_registers; - - return SCI_SUCCESS; -} - - -/** - * This method assigns the direct attached device ID for this port. - * - * @param[in] iport The port for which the direct attached device id is to - * be assigned. - * @param[in] device_id The direct attached device ID to assign to the port. - * This will be the RNi for the device - */ -void scic_sds_port_setup_transports( - struct isci_port *iport, - u32 device_id) +void sci_port_setup_transports(struct isci_port *iport, u32 device_id) { u8 index; for (index = 0; index < SCI_MAX_PHYS; index++) { if (iport->active_phy_mask & (1 << index)) - scic_sds_phy_setup_transport(iport->phy_table[index], device_id); + sci_phy_setup_transport(iport->phy_table[index], device_id); } } -/** - * - * @sci_port: This is the port on which the phy should be enabled. - * @sci_phy: This is the specific phy which to enable. - * @do_notify_user: This parameter specifies whether to inform the user (via - * scic_cb_port_link_up()) as to the fact that a new phy as become ready. - * - * This function will activate the phy in the port. - * Activation includes: - adding - * the phy to the port - enabling the Protocol Engine in the silicon. - - * notifying the user that the link is up. none - */ -static void scic_sds_port_activate_phy(struct isci_port *iport, - struct isci_phy *iphy, - bool do_notify_user) +static void sci_port_activate_phy(struct isci_port *iport, struct isci_phy *iphy, + bool do_notify_user) { struct isci_host *ihost = iport->owning_controller; if (iphy->protocol != SCIC_SDS_PHY_PROTOCOL_SATA) - scic_sds_phy_resume(iphy); + sci_phy_resume(iphy); iport->active_phy_mask |= 1 << iphy->phy_index; - scic_sds_controller_clear_invalid_phy(ihost, iphy); + sci_controller_clear_invalid_phy(ihost, iphy); if (do_notify_user == true) isci_port_link_up(ihost, iport, iphy); } -void scic_sds_port_deactivate_phy(struct isci_port *iport, - struct isci_phy *iphy, - bool do_notify_user) +void sci_port_deactivate_phy(struct isci_port *iport, struct isci_phy *iphy, + bool do_notify_user) { - struct isci_host *ihost = scic_sds_port_get_controller(iport); + struct isci_host *ihost = sci_port_get_controller(iport); iport->active_phy_mask &= ~(1 << iphy->phy_index); @@ -779,16 +668,7 @@ void scic_sds_port_deactivate_phy(struct isci_port *iport, isci_port_link_down(ihost, iphy, iport); } -/** - * - * @sci_port: This is the port on which the phy should be disabled. - * @sci_phy: This is the specific phy which to disabled. - * - * This function will disable the phy and report that the phy is not valid for - * this port object. None - */ -static void scic_sds_port_invalid_link_up(struct isci_port *iport, - struct isci_phy *iphy) +static void sci_port_invalid_link_up(struct isci_port *iport, struct isci_phy *iphy) { struct isci_host *ihost = iport->owning_controller; @@ -798,12 +678,12 @@ static void scic_sds_port_invalid_link_up(struct isci_port *iport, * invalid link. */ if ((ihost->invalid_phy_mask & (1 << iphy->phy_index)) == 0) { - scic_sds_controller_set_invalid_phy(ihost, iphy); + sci_controller_set_invalid_phy(ihost, iphy); dev_warn(&ihost->pdev->dev, "Invalid link up!\n"); } } -static bool is_port_ready_state(enum scic_sds_port_states state) +static bool is_port_ready_state(enum sci_port_states state) { switch (state) { case SCI_PORT_READY: @@ -818,10 +698,10 @@ static bool is_port_ready_state(enum scic_sds_port_states state) /* flag dummy rnc hanling when exiting a ready state */ static void port_state_machine_change(struct isci_port *iport, - enum scic_sds_port_states state) + enum sci_port_states state) { struct sci_base_state_machine *sm = &iport->sm; - enum scic_sds_port_states old_state = sm->current_state_id; + enum sci_port_states old_state = sm->current_state_id; if (is_port_ready_state(old_state) && !is_port_ready_state(state)) iport->ready_exit = true; @@ -831,11 +711,11 @@ static void port_state_machine_change(struct isci_port *iport, } /** - * scic_sds_port_general_link_up_handler - phy can be assigned to port? - * @sci_port: scic_sds_port object for which has a phy that has gone link up. + * sci_port_general_link_up_handler - phy can be assigned to port? + * @sci_port: sci_port object for which has a phy that has gone link up. * @sci_phy: This is the struct isci_phy object that has gone link up. * @do_notify_user: This parameter specifies whether to inform the user (via - * scic_cb_port_link_up()) as to the fact that a new phy as become ready. + * sci_port_link_up()) as to the fact that a new phy as become ready. * * Determine if this phy can be assigned to this * port . If the phy is not a valid PHY for @@ -843,15 +723,15 @@ static void port_state_machine_change(struct isci_port *iport, * part of a port if it's attached SAS ADDRESS is the same as all other PHYs in * the same port. none */ -static void scic_sds_port_general_link_up_handler(struct isci_port *iport, +static void sci_port_general_link_up_handler(struct isci_port *iport, struct isci_phy *iphy, bool do_notify_user) { struct sci_sas_address port_sas_address; struct sci_sas_address phy_sas_address; - scic_sds_port_get_attached_sas_address(iport, &port_sas_address); - scic_sds_phy_get_attached_sas_address(iphy, &phy_sas_address); + sci_port_get_attached_sas_address(iport, &port_sas_address); + sci_phy_get_attached_sas_address(iphy, &phy_sas_address); /* If the SAS address of the new phy matches the SAS address of * other phys in the port OR this is the first phy in the port, @@ -863,11 +743,11 @@ static void scic_sds_port_general_link_up_handler(struct isci_port *iport, iport->active_phy_mask == 0) { struct sci_base_state_machine *sm = &iport->sm; - scic_sds_port_activate_phy(iport, iphy, do_notify_user); + sci_port_activate_phy(iport, iphy, do_notify_user); if (sm->current_state_id == SCI_PORT_RESETTING) port_state_machine_change(iport, SCI_PORT_READY); } else - scic_sds_port_invalid_link_up(iport, iphy); + sci_port_invalid_link_up(iport, iphy); } @@ -881,7 +761,7 @@ static void scic_sds_port_general_link_up_handler(struct isci_port *iport, * bool true Is returned if this is a wide ported port. false Is returned if * this is a narrow port. */ -static bool scic_sds_port_is_wide(struct isci_port *iport) +static bool sci_port_is_wide(struct isci_port *iport) { u32 index; u32 phy_count = 0; @@ -909,14 +789,14 @@ static bool scic_sds_port_is_wide(struct isci_port *iport) * wide ports and direct attached phys. Since there are no wide ported SATA * devices this could become an invalid port configuration. */ -bool scic_sds_port_link_detected( +bool sci_port_link_detected( struct isci_port *iport, struct isci_phy *iphy) { if ((iport->logical_port_index != SCIC_SDS_DUMMY_PORT) && (iphy->protocol == SCIC_SDS_PHY_PROTOCOL_SATA) && - scic_sds_port_is_wide(iport)) { - scic_sds_port_invalid_link_up(iport, iphy); + sci_port_is_wide(iport)) { + sci_port_invalid_link_up(iport, iphy); return false; } @@ -977,11 +857,11 @@ done: * * */ -static void scic_sds_port_update_viit_entry(struct isci_port *iport) +static void sci_port_update_viit_entry(struct isci_port *iport) { struct sci_sas_address sas_address; - scic_sds_port_get_sas_address(iport, &sas_address); + sci_port_get_sas_address(iport, &sas_address); writel(sas_address.high, &iport->viit_registers->initiator_sas_address_hi); @@ -999,7 +879,7 @@ static void scic_sds_port_update_viit_entry(struct isci_port *iport) &iport->viit_registers->status); } -enum sas_linkrate scic_sds_port_get_max_allowed_speed(struct isci_port *iport) +enum sas_linkrate sci_port_get_max_allowed_speed(struct isci_port *iport) { u16 index; struct isci_phy *iphy; @@ -1010,7 +890,7 @@ enum sas_linkrate scic_sds_port_get_max_allowed_speed(struct isci_port *iport) * lowest maximum link rate. */ for (index = 0; index < SCI_MAX_PHYS; index++) { iphy = iport->phy_table[index]; - if (iphy && scic_sds_port_active_phy(iport, iphy) && + if (iphy && sci_port_active_phy(iport, iphy) && iphy->max_negotiated_speed < max_allowed_speed) max_allowed_speed = iphy->max_negotiated_speed; } @@ -1018,7 +898,7 @@ enum sas_linkrate scic_sds_port_get_max_allowed_speed(struct isci_port *iport) return max_allowed_speed; } -static void scic_sds_port_suspend_port_task_scheduler(struct isci_port *iport) +static void sci_port_suspend_port_task_scheduler(struct isci_port *iport) { u32 pts_control_value; @@ -1028,7 +908,7 @@ static void scic_sds_port_suspend_port_task_scheduler(struct isci_port *iport) } /** - * scic_sds_port_post_dummy_request() - post dummy/workaround request + * sci_port_post_dummy_request() - post dummy/workaround request * @sci_port: port to post task * * Prevent the hardware scheduler from posting new requests to the front @@ -1036,7 +916,7 @@ static void scic_sds_port_suspend_port_task_scheduler(struct isci_port *iport) * ongoing requests. * */ -static void scic_sds_port_post_dummy_request(struct isci_port *iport) +static void sci_port_post_dummy_request(struct isci_port *iport) { struct isci_host *ihost = iport->owning_controller; u16 tag = iport->reserved_tag; @@ -1050,7 +930,7 @@ static void scic_sds_port_post_dummy_request(struct isci_port *iport) iport->physical_port_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | ISCI_TAG_TCI(tag); - scic_sds_controller_post_request(ihost, command); + sci_controller_post_request(ihost, command); } /** @@ -1060,7 +940,7 @@ static void scic_sds_port_post_dummy_request(struct isci_port *iport) * @sci_port: The port on which the task must be aborted. * */ -static void scic_sds_port_abort_dummy_request(struct isci_port *iport) +static void sci_port_abort_dummy_request(struct isci_port *iport) { struct isci_host *ihost = iport->owning_controller; u16 tag = iport->reserved_tag; @@ -1074,7 +954,7 @@ static void scic_sds_port_abort_dummy_request(struct isci_port *iport) iport->physical_port_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | ISCI_TAG_TCI(tag); - scic_sds_controller_post_request(ihost, command); + sci_controller_post_request(ihost, command); } /** @@ -1084,7 +964,7 @@ static void scic_sds_port_abort_dummy_request(struct isci_port *iport) * This method will resume the port task scheduler for this port object. none */ static void -scic_sds_port_resume_port_task_scheduler(struct isci_port *iport) +sci_port_resume_port_task_scheduler(struct isci_port *iport) { u32 pts_control_value; @@ -1093,11 +973,11 @@ scic_sds_port_resume_port_task_scheduler(struct isci_port *iport) writel(pts_control_value, &iport->port_task_scheduler_registers->control); } -static void scic_sds_port_ready_substate_waiting_enter(struct sci_base_state_machine *sm) +static void sci_port_ready_substate_waiting_enter(struct sci_base_state_machine *sm) { struct isci_port *iport = container_of(sm, typeof(*iport), sm); - scic_sds_port_suspend_port_task_scheduler(iport); + sci_port_suspend_port_task_scheduler(iport); iport->not_ready_reason = SCIC_PORT_NOT_READY_NO_ACTIVE_PHYS; @@ -1108,7 +988,7 @@ static void scic_sds_port_ready_substate_waiting_enter(struct sci_base_state_mac } } -static void scic_sds_port_ready_substate_operational_enter(struct sci_base_state_machine *sm) +static void sci_port_ready_substate_operational_enter(struct sci_base_state_machine *sm) { u32 index; struct isci_port *iport = container_of(sm, typeof(*iport), sm); @@ -1124,18 +1004,18 @@ static void scic_sds_port_ready_substate_operational_enter(struct sci_base_state } } - scic_sds_port_update_viit_entry(iport); + sci_port_update_viit_entry(iport); - scic_sds_port_resume_port_task_scheduler(iport); + sci_port_resume_port_task_scheduler(iport); /* * Post the dummy task for the port so the hardware can schedule * io correctly */ - scic_sds_port_post_dummy_request(iport); + sci_port_post_dummy_request(iport); } -static void scic_sds_port_invalidate_dummy_remote_node(struct isci_port *iport) +static void sci_port_invalidate_dummy_remote_node(struct isci_port *iport) { struct isci_host *ihost = iport->owning_controller; u8 phys_index = iport->physical_port_index; @@ -1157,7 +1037,7 @@ static void scic_sds_port_invalidate_dummy_remote_node(struct isci_port *iport) command = SCU_CONTEXT_COMMAND_POST_RNC_INVALIDATE | phys_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | rni; - scic_sds_controller_post_request(ihost, command); + sci_controller_post_request(ihost, command); } /** @@ -1168,7 +1048,7 @@ static void scic_sds_port_invalidate_dummy_remote_node(struct isci_port *iport) * exiting the SCI_PORT_SUB_OPERATIONAL. This function reports * the port not ready and suspends the port task scheduler. none */ -static void scic_sds_port_ready_substate_operational_exit(struct sci_base_state_machine *sm) +static void sci_port_ready_substate_operational_exit(struct sci_base_state_machine *sm) { struct isci_port *iport = container_of(sm, typeof(*iport), sm); struct isci_host *ihost = iport->owning_controller; @@ -1178,15 +1058,15 @@ static void scic_sds_port_ready_substate_operational_exit(struct sci_base_state_ * the hardware will treat this as a NOP and just return abort * complete. */ - scic_sds_port_abort_dummy_request(iport); + sci_port_abort_dummy_request(iport); isci_port_not_ready(ihost, iport); if (iport->ready_exit) - scic_sds_port_invalidate_dummy_remote_node(iport); + sci_port_invalidate_dummy_remote_node(iport); } -static void scic_sds_port_ready_substate_configuring_enter(struct sci_base_state_machine *sm) +static void sci_port_ready_substate_configuring_enter(struct sci_base_state_machine *sm) { struct isci_port *iport = container_of(sm, typeof(*iport), sm); struct isci_host *ihost = iport->owning_controller; @@ -1201,20 +1081,20 @@ static void scic_sds_port_ready_substate_configuring_enter(struct sci_base_state SCI_PORT_SUB_OPERATIONAL); } -static void scic_sds_port_ready_substate_configuring_exit(struct sci_base_state_machine *sm) +static void sci_port_ready_substate_configuring_exit(struct sci_base_state_machine *sm) { struct isci_port *iport = container_of(sm, typeof(*iport), sm); - scic_sds_port_suspend_port_task_scheduler(iport); + sci_port_suspend_port_task_scheduler(iport); if (iport->ready_exit) - scic_sds_port_invalidate_dummy_remote_node(iport); + sci_port_invalidate_dummy_remote_node(iport); } -enum sci_status scic_sds_port_start(struct isci_port *iport) +enum sci_status sci_port_start(struct isci_port *iport) { struct isci_host *ihost = iport->owning_controller; enum sci_status status = SCI_SUCCESS; - enum scic_sds_port_states state; + enum sci_port_states state; u32 phy_mask; state = iport->sm.current_state_id; @@ -1234,11 +1114,11 @@ enum sci_status scic_sds_port_start(struct isci_port *iport) } if (iport->reserved_rni == SCU_DUMMY_INDEX) { - u16 rni = scic_sds_remote_node_table_allocate_remote_node( + u16 rni = sci_remote_node_table_allocate_remote_node( &ihost->available_remote_nodes, 1); if (rni != SCU_DUMMY_INDEX) - scic_sds_port_construct_dummy_rnc(iport, rni); + sci_port_construct_dummy_rnc(iport, rni); else status = SCI_FAILURE_INSUFFICIENT_RESOURCES; iport->reserved_rni = rni; @@ -1251,19 +1131,19 @@ enum sci_status scic_sds_port_start(struct isci_port *iport) if (tag == SCI_CONTROLLER_INVALID_IO_TAG) status = SCI_FAILURE_INSUFFICIENT_RESOURCES; else - scic_sds_port_construct_dummy_task(iport, tag); + sci_port_construct_dummy_task(iport, tag); iport->reserved_tag = tag; } if (status == SCI_SUCCESS) { - phy_mask = scic_sds_port_get_phys(iport); + phy_mask = sci_port_get_phys(iport); /* * There are one or more phys assigned to this port. Make sure * the port's phy mask is in fact legal and supported by the * silicon. */ - if (scic_sds_port_is_phy_mask_valid(iport, phy_mask) == true) { + if (sci_port_is_phy_mask_valid(iport, phy_mask) == true) { port_state_machine_change(iport, SCI_PORT_READY); @@ -1273,14 +1153,14 @@ enum sci_status scic_sds_port_start(struct isci_port *iport) } if (status != SCI_SUCCESS) - scic_sds_port_destroy_dummy_resources(iport); + sci_port_destroy_dummy_resources(iport); return status; } -enum sci_status scic_sds_port_stop(struct isci_port *iport) +enum sci_status sci_port_stop(struct isci_port *iport) { - enum scic_sds_port_states state; + enum sci_port_states state; state = iport->sm.current_state_id; switch (state) { @@ -1300,11 +1180,11 @@ enum sci_status scic_sds_port_stop(struct isci_port *iport) } } -static enum sci_status scic_port_hard_reset(struct isci_port *iport, u32 timeout) +static enum sci_status sci_port_hard_reset(struct isci_port *iport, u32 timeout) { enum sci_status status = SCI_FAILURE_INVALID_PHY; struct isci_phy *iphy = NULL; - enum scic_sds_port_states state; + enum sci_port_states state; u32 phy_index; state = iport->sm.current_state_id; @@ -1317,7 +1197,7 @@ static enum sci_status scic_port_hard_reset(struct isci_port *iport, u32 timeout /* Select a phy on which we can send the hard reset request. */ for (phy_index = 0; phy_index < SCI_MAX_PHYS && !iphy; phy_index++) { iphy = iport->phy_table[phy_index]; - if (iphy && !scic_sds_port_active_phy(iport, iphy)) { + if (iphy && !sci_port_active_phy(iport, iphy)) { /* * We found a phy but it is not ready select * different phy @@ -1329,7 +1209,7 @@ static enum sci_status scic_port_hard_reset(struct isci_port *iport, u32 timeout /* If we have a phy then go ahead and start the reset procedure */ if (!iphy) return status; - status = scic_sds_phy_reset(iphy); + status = sci_phy_reset(iphy); if (status != SCI_SUCCESS) return status; @@ -1342,7 +1222,7 @@ static enum sci_status scic_port_hard_reset(struct isci_port *iport, u32 timeout } /** - * scic_sds_port_add_phy() - + * sci_port_add_phy() - * @sci_port: This parameter specifies the port in which the phy will be added. * @sci_phy: This parameter is the phy which is to be added to the port. * @@ -1350,11 +1230,11 @@ static enum sci_status scic_port_hard_reset(struct isci_port *iport, u32 timeout * enum sci_status. SCI_SUCCESS the phy has been added to the port. Any other * status is a failure to add the phy to the port. */ -enum sci_status scic_sds_port_add_phy(struct isci_port *iport, +enum sci_status sci_port_add_phy(struct isci_port *iport, struct isci_phy *iphy) { enum sci_status status; - enum scic_sds_port_states state; + enum sci_port_states state; state = iport->sm.current_state_id; switch (state) { @@ -1362,7 +1242,7 @@ enum sci_status scic_sds_port_add_phy(struct isci_port *iport, struct sci_sas_address port_sas_address; /* Read the port assigned SAS Address if there is one */ - scic_sds_port_get_sas_address(iport, &port_sas_address); + sci_port_get_sas_address(iport, &port_sas_address); if (port_sas_address.high != 0 && port_sas_address.low != 0) { struct sci_sas_address phy_sas_address; @@ -1370,32 +1250,32 @@ enum sci_status scic_sds_port_add_phy(struct isci_port *iport, /* Make sure that the PHY SAS Address matches the SAS Address * for this port */ - scic_sds_phy_get_sas_address(iphy, &phy_sas_address); + sci_phy_get_sas_address(iphy, &phy_sas_address); if (port_sas_address.high != phy_sas_address.high || port_sas_address.low != phy_sas_address.low) return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; } - return scic_sds_port_set_phy(iport, iphy); + return sci_port_set_phy(iport, iphy); } case SCI_PORT_SUB_WAITING: case SCI_PORT_SUB_OPERATIONAL: - status = scic_sds_port_set_phy(iport, iphy); + status = sci_port_set_phy(iport, iphy); if (status != SCI_SUCCESS) return status; - scic_sds_port_general_link_up_handler(iport, iphy, true); + sci_port_general_link_up_handler(iport, iphy, true); iport->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; port_state_machine_change(iport, SCI_PORT_SUB_CONFIGURING); return status; case SCI_PORT_SUB_CONFIGURING: - status = scic_sds_port_set_phy(iport, iphy); + status = sci_port_set_phy(iport, iphy); if (status != SCI_SUCCESS) return status; - scic_sds_port_general_link_up_handler(iport, iphy, true); + sci_port_general_link_up_handler(iport, iphy, true); /* Re-enter the configuring state since this may be the last phy in * the port. @@ -1411,7 +1291,7 @@ enum sci_status scic_sds_port_add_phy(struct isci_port *iport, } /** - * scic_sds_port_remove_phy() - + * sci_port_remove_phy() - * @sci_port: This parameter specifies the port in which the phy will be added. * @sci_phy: This parameter is the phy which is to be added to the port. * @@ -1419,33 +1299,33 @@ enum sci_status scic_sds_port_add_phy(struct isci_port *iport, * an enum sci_status. SCI_SUCCESS the phy has been removed from the port. Any * other status is a failure to add the phy to the port. */ -enum sci_status scic_sds_port_remove_phy(struct isci_port *iport, +enum sci_status sci_port_remove_phy(struct isci_port *iport, struct isci_phy *iphy) { enum sci_status status; - enum scic_sds_port_states state; + enum sci_port_states state; state = iport->sm.current_state_id; switch (state) { case SCI_PORT_STOPPED: - return scic_sds_port_clear_phy(iport, iphy); + return sci_port_clear_phy(iport, iphy); case SCI_PORT_SUB_OPERATIONAL: - status = scic_sds_port_clear_phy(iport, iphy); + status = sci_port_clear_phy(iport, iphy); if (status != SCI_SUCCESS) return status; - scic_sds_port_deactivate_phy(iport, iphy, true); + sci_port_deactivate_phy(iport, iphy, true); iport->not_ready_reason = SCIC_PORT_NOT_READY_RECONFIGURING; port_state_machine_change(iport, SCI_PORT_SUB_CONFIGURING); return SCI_SUCCESS; case SCI_PORT_SUB_CONFIGURING: - status = scic_sds_port_clear_phy(iport, iphy); + status = sci_port_clear_phy(iport, iphy); if (status != SCI_SUCCESS) return status; - scic_sds_port_deactivate_phy(iport, iphy, true); + sci_port_deactivate_phy(iport, iphy, true); /* Re-enter the configuring state since this may be the last phy in * the port @@ -1460,10 +1340,10 @@ enum sci_status scic_sds_port_remove_phy(struct isci_port *iport, } } -enum sci_status scic_sds_port_link_up(struct isci_port *iport, +enum sci_status sci_port_link_up(struct isci_port *iport, struct isci_phy *iphy) { - enum scic_sds_port_states state; + enum sci_port_states state; state = iport->sm.current_state_id; switch (state) { @@ -1471,13 +1351,13 @@ enum sci_status scic_sds_port_link_up(struct isci_port *iport, /* Since this is the first phy going link up for the port we * can just enable it and continue */ - scic_sds_port_activate_phy(iport, iphy, true); + sci_port_activate_phy(iport, iphy, true); port_state_machine_change(iport, SCI_PORT_SUB_OPERATIONAL); return SCI_SUCCESS; case SCI_PORT_SUB_OPERATIONAL: - scic_sds_port_general_link_up_handler(iport, iphy, true); + sci_port_general_link_up_handler(iport, iphy, true); return SCI_SUCCESS; case SCI_PORT_RESETTING: /* TODO We should make sure that the phy that has gone @@ -1494,7 +1374,7 @@ enum sci_status scic_sds_port_link_up(struct isci_port *iport, /* In the resetting state we don't notify the user regarding * link up and link down notifications. */ - scic_sds_port_general_link_up_handler(iport, iphy, false); + sci_port_general_link_up_handler(iport, iphy, false); return SCI_SUCCESS; default: dev_warn(sciport_to_dev(iport), @@ -1503,15 +1383,15 @@ enum sci_status scic_sds_port_link_up(struct isci_port *iport, } } -enum sci_status scic_sds_port_link_down(struct isci_port *iport, +enum sci_status sci_port_link_down(struct isci_port *iport, struct isci_phy *iphy) { - enum scic_sds_port_states state; + enum sci_port_states state; state = iport->sm.current_state_id; switch (state) { case SCI_PORT_SUB_OPERATIONAL: - scic_sds_port_deactivate_phy(iport, iphy, true); + sci_port_deactivate_phy(iport, iphy, true); /* If there are no active phys left in the port, then * transition the port to the WAITING state until such time @@ -1524,7 +1404,7 @@ enum sci_status scic_sds_port_link_down(struct isci_port *iport, case SCI_PORT_RESETTING: /* In the resetting state we don't notify the user regarding * link up and link down notifications. */ - scic_sds_port_deactivate_phy(iport, iphy, false); + sci_port_deactivate_phy(iport, iphy, false); return SCI_SUCCESS; default: dev_warn(sciport_to_dev(iport), @@ -1533,11 +1413,11 @@ enum sci_status scic_sds_port_link_down(struct isci_port *iport, } } -enum sci_status scic_sds_port_start_io(struct isci_port *iport, - struct isci_remote_device *idev, - struct isci_request *ireq) +enum sci_status sci_port_start_io(struct isci_port *iport, + struct isci_remote_device *idev, + struct isci_request *ireq) { - enum scic_sds_port_states state; + enum sci_port_states state; state = iport->sm.current_state_id; switch (state) { @@ -1553,11 +1433,11 @@ enum sci_status scic_sds_port_start_io(struct isci_port *iport, } } -enum sci_status scic_sds_port_complete_io(struct isci_port *iport, - struct isci_remote_device *idev, - struct isci_request *ireq) +enum sci_status sci_port_complete_io(struct isci_port *iport, + struct isci_remote_device *idev, + struct isci_request *ireq) { - enum scic_sds_port_states state; + enum sci_port_states state; state = iport->sm.current_state_id; switch (state) { @@ -1566,7 +1446,7 @@ enum sci_status scic_sds_port_complete_io(struct isci_port *iport, "%s: in wrong state: %d\n", __func__, state); return SCI_FAILURE_INVALID_STATE; case SCI_PORT_STOPPING: - scic_sds_port_decrement_request_count(iport); + sci_port_decrement_request_count(iport); if (iport->started_request_count == 0) port_state_machine_change(iport, @@ -1577,10 +1457,10 @@ enum sci_status scic_sds_port_complete_io(struct isci_port *iport, case SCI_PORT_FAILED: case SCI_PORT_SUB_WAITING: case SCI_PORT_SUB_OPERATIONAL: - scic_sds_port_decrement_request_count(iport); + sci_port_decrement_request_count(iport); break; case SCI_PORT_SUB_CONFIGURING: - scic_sds_port_decrement_request_count(iport); + sci_port_decrement_request_count(iport); if (iport->started_request_count == 0) { port_state_machine_change(iport, SCI_PORT_SUB_OPERATIONAL); @@ -1590,32 +1470,17 @@ enum sci_status scic_sds_port_complete_io(struct isci_port *iport, return SCI_SUCCESS; } -/** - * - * @sci_port: This is the port object which to suspend. - * - * This method will enable the SCU Port Task Scheduler for this port object but - * will leave the port task scheduler in a suspended state. none - */ -static void -scic_sds_port_enable_port_task_scheduler(struct isci_port *iport) +static void sci_port_enable_port_task_scheduler(struct isci_port *iport) { u32 pts_control_value; + /* enable the port task scheduler in a suspended state */ pts_control_value = readl(&iport->port_task_scheduler_registers->control); pts_control_value |= SCU_PTSxCR_GEN_BIT(ENABLE) | SCU_PTSxCR_GEN_BIT(SUSPEND); writel(pts_control_value, &iport->port_task_scheduler_registers->control); } -/** - * - * @sci_port: This is the port object which to resume. - * - * This method will disable the SCU port task scheduler for this port object. - * none - */ -static void -scic_sds_port_disable_port_task_scheduler(struct isci_port *iport) +static void sci_port_disable_port_task_scheduler(struct isci_port *iport) { u32 pts_control_value; @@ -1625,7 +1490,7 @@ scic_sds_port_disable_port_task_scheduler(struct isci_port *iport) writel(pts_control_value, &iport->port_task_scheduler_registers->control); } -static void scic_sds_port_post_dummy_remote_node(struct isci_port *iport) +static void sci_port_post_dummy_remote_node(struct isci_port *iport) { struct isci_host *ihost = iport->owning_controller; u8 phys_index = iport->physical_port_index; @@ -1639,7 +1504,7 @@ static void scic_sds_port_post_dummy_remote_node(struct isci_port *iport) command = SCU_CONTEXT_COMMAND_POST_RNC_32 | phys_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | rni; - scic_sds_controller_post_request(ihost, command); + sci_controller_post_request(ihost, command); /* ensure hardware has seen the post rnc command and give it * ample time to act before sending the suspend @@ -1650,10 +1515,10 @@ static void scic_sds_port_post_dummy_remote_node(struct isci_port *iport) command = SCU_CONTEXT_COMMAND_POST_RNC_SUSPEND_TX_RX | phys_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT | rni; - scic_sds_controller_post_request(ihost, command); + sci_controller_post_request(ihost, command); } -static void scic_sds_port_stopped_state_enter(struct sci_base_state_machine *sm) +static void sci_port_stopped_state_enter(struct sci_base_state_machine *sm) { struct isci_port *iport = container_of(sm, typeof(*iport), sm); @@ -1662,19 +1527,19 @@ static void scic_sds_port_stopped_state_enter(struct sci_base_state_machine *sm) * If we enter this state becasuse of a request to stop * the port then we want to disable the hardwares port * task scheduler. */ - scic_sds_port_disable_port_task_scheduler(iport); + sci_port_disable_port_task_scheduler(iport); } } -static void scic_sds_port_stopped_state_exit(struct sci_base_state_machine *sm) +static void sci_port_stopped_state_exit(struct sci_base_state_machine *sm) { struct isci_port *iport = container_of(sm, typeof(*iport), sm); /* Enable and suspend the port task scheduler */ - scic_sds_port_enable_port_task_scheduler(iport); + sci_port_enable_port_task_scheduler(iport); } -static void scic_sds_port_ready_state_enter(struct sci_base_state_machine *sm) +static void sci_port_ready_state_enter(struct sci_base_state_machine *sm) { struct isci_port *iport = container_of(sm, typeof(*iport), sm); struct isci_host *ihost = iport->owning_controller; @@ -1687,30 +1552,30 @@ static void scic_sds_port_ready_state_enter(struct sci_base_state_machine *sm) isci_port_not_ready(ihost, iport); /* Post and suspend the dummy remote node context for this port. */ - scic_sds_port_post_dummy_remote_node(iport); + sci_port_post_dummy_remote_node(iport); /* Start the ready substate machine */ port_state_machine_change(iport, SCI_PORT_SUB_WAITING); } -static void scic_sds_port_resetting_state_exit(struct sci_base_state_machine *sm) +static void sci_port_resetting_state_exit(struct sci_base_state_machine *sm) { struct isci_port *iport = container_of(sm, typeof(*iport), sm); sci_del_timer(&iport->timer); } -static void scic_sds_port_stopping_state_exit(struct sci_base_state_machine *sm) +static void sci_port_stopping_state_exit(struct sci_base_state_machine *sm) { struct isci_port *iport = container_of(sm, typeof(*iport), sm); sci_del_timer(&iport->timer); - scic_sds_port_destroy_dummy_resources(iport); + sci_port_destroy_dummy_resources(iport); } -static void scic_sds_port_failed_state_enter(struct sci_base_state_machine *sm) +static void sci_port_failed_state_enter(struct sci_base_state_machine *sm) { struct isci_port *iport = container_of(sm, typeof(*iport), sm); @@ -1719,40 +1584,40 @@ static void scic_sds_port_failed_state_enter(struct sci_base_state_machine *sm) /* --------------------------------------------------------------------------- */ -static const struct sci_base_state scic_sds_port_state_table[] = { +static const struct sci_base_state sci_port_state_table[] = { [SCI_PORT_STOPPED] = { - .enter_state = scic_sds_port_stopped_state_enter, - .exit_state = scic_sds_port_stopped_state_exit + .enter_state = sci_port_stopped_state_enter, + .exit_state = sci_port_stopped_state_exit }, [SCI_PORT_STOPPING] = { - .exit_state = scic_sds_port_stopping_state_exit + .exit_state = sci_port_stopping_state_exit }, [SCI_PORT_READY] = { - .enter_state = scic_sds_port_ready_state_enter, + .enter_state = sci_port_ready_state_enter, }, [SCI_PORT_SUB_WAITING] = { - .enter_state = scic_sds_port_ready_substate_waiting_enter, + .enter_state = sci_port_ready_substate_waiting_enter, }, [SCI_PORT_SUB_OPERATIONAL] = { - .enter_state = scic_sds_port_ready_substate_operational_enter, - .exit_state = scic_sds_port_ready_substate_operational_exit + .enter_state = sci_port_ready_substate_operational_enter, + .exit_state = sci_port_ready_substate_operational_exit }, [SCI_PORT_SUB_CONFIGURING] = { - .enter_state = scic_sds_port_ready_substate_configuring_enter, - .exit_state = scic_sds_port_ready_substate_configuring_exit + .enter_state = sci_port_ready_substate_configuring_enter, + .exit_state = sci_port_ready_substate_configuring_exit }, [SCI_PORT_RESETTING] = { - .exit_state = scic_sds_port_resetting_state_exit + .exit_state = sci_port_resetting_state_exit }, [SCI_PORT_FAILED] = { - .enter_state = scic_sds_port_failed_state_enter, + .enter_state = sci_port_failed_state_enter, } }; -void scic_sds_port_construct(struct isci_port *iport, u8 index, +void sci_port_construct(struct isci_port *iport, u8 index, struct isci_host *ihost) { - sci_init_sm(&iport->sm, scic_sds_port_state_table, SCI_PORT_STOPPED); + sci_init_sm(&iport->sm, sci_port_state_table, SCI_PORT_STOPPED); iport->logical_port_index = SCIC_SDS_DUMMY_PORT; iport->physical_port_index = index; @@ -1798,9 +1663,7 @@ enum isci_status isci_port_get_state( return isci_port->status; } -void scic_sds_port_broadcast_change_received( - struct isci_port *iport, - struct isci_phy *iphy) +void sci_port_broadcast_change_received(struct isci_port *iport, struct isci_phy *iphy) { struct isci_host *ihost = iport->owning_controller; @@ -1823,7 +1686,7 @@ int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *ipor spin_lock_irqsave(&ihost->scic_lock, flags); #define ISCI_PORT_RESET_TIMEOUT SCIC_SDS_SIGNATURE_FIS_TIMEOUT - status = scic_port_hard_reset(iport, ISCI_PORT_RESET_TIMEOUT); + status = sci_port_hard_reset(iport, ISCI_PORT_RESET_TIMEOUT); spin_unlock_irqrestore(&ihost->scic_lock, flags); @@ -1840,7 +1703,7 @@ int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *ipor ret = TMF_RESP_FUNC_FAILED; dev_err(&ihost->pdev->dev, - "%s: iport = %p; scic_port_hard_reset call" + "%s: iport = %p; sci_port_hard_reset call" " failed 0x%x\n", __func__, iport, status); @@ -1863,8 +1726,8 @@ int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *ipor if (!iphy) continue; - scic_sds_phy_stop(iphy); - scic_sds_phy_start(iphy); + sci_phy_stop(iphy); + sci_phy_start(iphy); } spin_unlock_irqrestore(&ihost->scic_lock, flags); } diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index 9a9be7b47b4..4c4ab8126d9 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -123,7 +123,7 @@ struct isci_port { struct scu_viit_entry __iomem *viit_registers; }; -enum scic_port_not_ready_reason_code { +enum sci_port_not_ready_reason_code { SCIC_PORT_NOT_READY_NO_ACTIVE_PHYS, SCIC_PORT_NOT_READY_HARD_RESET_REQUESTED, SCIC_PORT_NOT_READY_INVALID_PORT_CONFIGURATION, @@ -132,25 +132,25 @@ enum scic_port_not_ready_reason_code { SCIC_PORT_NOT_READY_REASON_CODE_MAX }; -struct scic_port_end_point_properties { +struct sci_port_end_point_properties { struct sci_sas_address sas_address; - struct scic_phy_proto protocols; + struct sci_phy_proto protocols; }; -struct scic_port_properties { +struct sci_port_properties { u32 index; - struct scic_port_end_point_properties local; - struct scic_port_end_point_properties remote; + struct sci_port_end_point_properties local; + struct sci_port_end_point_properties remote; u32 phy_mask; }; /** - * enum scic_sds_port_states - This enumeration depicts all the states for the + * enum sci_port_states - This enumeration depicts all the states for the * common port state machine. * * */ -enum scic_sds_port_states { +enum sci_port_states { /** * This state indicates that the port has successfully been stopped. * In this state no new IO operations are permitted. @@ -211,23 +211,23 @@ enum scic_sds_port_states { }; /** - * scic_sds_port_get_controller() - + * sci_port_get_controller() - * * Helper macro to get the owning controller of this port */ -#define scic_sds_port_get_controller(this_port) \ +#define sci_port_get_controller(this_port) \ ((this_port)->owning_controller) /** - * scic_sds_port_get_index() - + * sci_port_get_index() - * * This macro returns the physical port index for this port object */ -#define scic_sds_port_get_index(this_port) \ +#define sci_port_get_index(this_port) \ ((this_port)->physical_port_index) -static inline void scic_sds_port_decrement_request_count(struct isci_port *iport) +static inline void sci_port_decrement_request_count(struct isci_port *iport) { if (WARN_ONCE(iport->started_request_count == 0, "%s: tried to decrement started_request_count past 0!?", @@ -237,79 +237,73 @@ static inline void scic_sds_port_decrement_request_count(struct isci_port *iport iport->started_request_count--; } -#define scic_sds_port_active_phy(port, phy) \ +#define sci_port_active_phy(port, phy) \ (((port)->active_phy_mask & (1 << (phy)->phy_index)) != 0) -void scic_sds_port_construct( +void sci_port_construct( struct isci_port *iport, u8 port_index, struct isci_host *ihost); -enum sci_status scic_sds_port_initialize( - struct isci_port *iport, - void __iomem *port_task_scheduler_registers, - void __iomem *port_configuration_regsiter, - void __iomem *viit_registers); - -enum sci_status scic_sds_port_start(struct isci_port *iport); -enum sci_status scic_sds_port_stop(struct isci_port *iport); +enum sci_status sci_port_start(struct isci_port *iport); +enum sci_status sci_port_stop(struct isci_port *iport); -enum sci_status scic_sds_port_add_phy( +enum sci_status sci_port_add_phy( struct isci_port *iport, struct isci_phy *iphy); -enum sci_status scic_sds_port_remove_phy( +enum sci_status sci_port_remove_phy( struct isci_port *iport, struct isci_phy *iphy); -void scic_sds_port_setup_transports( +void sci_port_setup_transports( struct isci_port *iport, u32 device_id); void isci_port_bcn_enable(struct isci_host *, struct isci_port *); -void scic_sds_port_deactivate_phy( +void sci_port_deactivate_phy( struct isci_port *iport, struct isci_phy *iphy, bool do_notify_user); -bool scic_sds_port_link_detected( +bool sci_port_link_detected( struct isci_port *iport, struct isci_phy *iphy); -enum sci_status scic_sds_port_link_up(struct isci_port *iport, +enum sci_status sci_port_link_up(struct isci_port *iport, struct isci_phy *iphy); -enum sci_status scic_sds_port_link_down(struct isci_port *iport, +enum sci_status sci_port_link_down(struct isci_port *iport, struct isci_phy *iphy); struct isci_request; struct isci_remote_device; -enum sci_status scic_sds_port_start_io( +enum sci_status sci_port_start_io( struct isci_port *iport, struct isci_remote_device *idev, struct isci_request *ireq); -enum sci_status scic_sds_port_complete_io( +enum sci_status sci_port_complete_io( struct isci_port *iport, struct isci_remote_device *idev, struct isci_request *ireq); -enum sas_linkrate scic_sds_port_get_max_allowed_speed( +enum sas_linkrate sci_port_get_max_allowed_speed( struct isci_port *iport); -void scic_sds_port_broadcast_change_received( +void sci_port_broadcast_change_received( struct isci_port *iport, struct isci_phy *iphy); -bool scic_sds_port_is_valid_phy_assignment( +bool sci_port_is_valid_phy_assignment( struct isci_port *iport, u32 phy_index); -void scic_sds_port_get_sas_address( +void sci_port_get_sas_address( struct isci_port *iport, struct sci_sas_address *sas_address); -void scic_sds_port_get_attached_sas_address( +void sci_port_get_attached_sas_address( struct isci_port *iport, struct sci_sas_address *sas_address); diff --git a/drivers/scsi/isci/port_config.c b/drivers/scsi/isci/port_config.c index a0a135d54e9..c8b16db6bbd 100644 --- a/drivers/scsi/isci/port_config.c +++ b/drivers/scsi/isci/port_config.c @@ -112,7 +112,7 @@ static s32 sci_sas_address_compare( * port. port address if the port can be found to match the phy. * NULL if there is no matching port for the phy. */ -static struct isci_port *scic_sds_port_configuration_agent_find_port( +static struct isci_port *sci_port_configuration_agent_find_port( struct isci_host *ihost, struct isci_phy *iphy) { @@ -127,14 +127,14 @@ static struct isci_port *scic_sds_port_configuration_agent_find_port( * more phys match the sent and received SAS address as this phy in which * case it should participate in the same port. */ - scic_sds_phy_get_sas_address(iphy, &phy_sas_address); - scic_sds_phy_get_attached_sas_address(iphy, &phy_attached_device_address); + sci_phy_get_sas_address(iphy, &phy_sas_address); + sci_phy_get_attached_sas_address(iphy, &phy_attached_device_address); for (i = 0; i < ihost->logical_port_entries; i++) { struct isci_port *iport = &ihost->ports[i]; - scic_sds_port_get_sas_address(iport, &port_sas_address); - scic_sds_port_get_attached_sas_address(iport, &port_attached_device_address); + sci_port_get_sas_address(iport, &port_sas_address); + sci_port_get_attached_sas_address(iport, &port_attached_device_address); if (sci_sas_address_compare(port_sas_address, phy_sas_address) == 0 && sci_sas_address_compare(port_attached_device_address, phy_attached_device_address) == 0) @@ -156,9 +156,9 @@ static struct isci_port *scic_sds_port_configuration_agent_find_port( * this port configuration agent. SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION * the port configuration is not valid for this port configuration agent. */ -static enum sci_status scic_sds_port_configuration_agent_validate_ports( +static enum sci_status sci_port_configuration_agent_validate_ports( struct isci_host *ihost, - struct scic_sds_port_configuration_agent *port_agent) + struct sci_port_configuration_agent *port_agent) { struct sci_sas_address first_address; struct sci_sas_address second_address; @@ -194,8 +194,8 @@ static enum sci_status scic_sds_port_configuration_agent_validate_ports( * PE0 and PE3 can never have the same SAS Address unless they * are part of the same x4 wide port and we have already checked * for this condition. */ - scic_sds_phy_get_sas_address(&ihost->phys[0], &first_address); - scic_sds_phy_get_sas_address(&ihost->phys[3], &second_address); + sci_phy_get_sas_address(&ihost->phys[0], &first_address); + sci_phy_get_sas_address(&ihost->phys[3], &second_address); if (sci_sas_address_compare(first_address, second_address) == 0) { return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; @@ -207,8 +207,8 @@ static enum sci_status scic_sds_port_configuration_agent_validate_ports( * part of the same port. */ if (port_agent->phy_valid_port_range[0].min_index == 0 && port_agent->phy_valid_port_range[1].min_index == 1) { - scic_sds_phy_get_sas_address(&ihost->phys[0], &first_address); - scic_sds_phy_get_sas_address(&ihost->phys[2], &second_address); + sci_phy_get_sas_address(&ihost->phys[0], &first_address); + sci_phy_get_sas_address(&ihost->phys[2], &second_address); if (sci_sas_address_compare(first_address, second_address) == 0) { return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; @@ -221,8 +221,8 @@ static enum sci_status scic_sds_port_configuration_agent_validate_ports( * part of the same port. */ if (port_agent->phy_valid_port_range[2].min_index == 2 && port_agent->phy_valid_port_range[3].min_index == 3) { - scic_sds_phy_get_sas_address(&ihost->phys[1], &first_address); - scic_sds_phy_get_sas_address(&ihost->phys[3], &second_address); + sci_phy_get_sas_address(&ihost->phys[1], &first_address); + sci_phy_get_sas_address(&ihost->phys[3], &second_address); if (sci_sas_address_compare(first_address, second_address) == 0) { return SCI_FAILURE_UNSUPPORTED_PORT_CONFIGURATION; @@ -239,8 +239,8 @@ static enum sci_status scic_sds_port_configuration_agent_validate_ports( /* verify all of the phys in the same port are using the same SAS address */ static enum sci_status -scic_sds_mpc_agent_validate_phy_configuration(struct isci_host *ihost, - struct scic_sds_port_configuration_agent *port_agent) +sci_mpc_agent_validate_phy_configuration(struct isci_host *ihost, + struct sci_port_configuration_agent *port_agent) { u32 phy_mask; u32 assigned_phy_mask; @@ -254,7 +254,7 @@ scic_sds_mpc_agent_validate_phy_configuration(struct isci_host *ihost, sas_address.low = 0; for (port_index = 0; port_index < SCI_MAX_PORTS; port_index++) { - phy_mask = ihost->oem_parameters.sds1.ports[port_index].phy_mask; + phy_mask = ihost->oem_parameters.ports[port_index].phy_mask; if (!phy_mask) continue; @@ -269,7 +269,7 @@ scic_sds_mpc_agent_validate_phy_configuration(struct isci_host *ihost, for (phy_index = 0; phy_index < SCI_MAX_PHYS; phy_index++) { if ((phy_mask & (1 << phy_index)) == 0) continue; - scic_sds_phy_get_sas_address(&ihost->phys[phy_index], + sci_phy_get_sas_address(&ihost->phys[phy_index], &sas_address); /* @@ -294,7 +294,7 @@ scic_sds_mpc_agent_validate_phy_configuration(struct isci_host *ihost, while (phy_index < SCI_MAX_PHYS) { if ((phy_mask & (1 << phy_index)) == 0) continue; - scic_sds_phy_get_sas_address(&ihost->phys[phy_index], + sci_phy_get_sas_address(&ihost->phys[phy_index], &phy_assigned_address); if (sci_sas_address_compare(sas_address, phy_assigned_address) != 0) { @@ -307,7 +307,7 @@ scic_sds_mpc_agent_validate_phy_configuration(struct isci_host *ihost, port_agent->phy_valid_port_range[phy_index].min_index = port_index; port_agent->phy_valid_port_range[phy_index].max_index = phy_index; - scic_sds_port_add_phy(&ihost->ports[port_index], + sci_port_add_phy(&ihost->ports[port_index], &ihost->phys[phy_index]); assigned_phy_mask |= (1 << phy_index); @@ -316,14 +316,14 @@ scic_sds_mpc_agent_validate_phy_configuration(struct isci_host *ihost, phy_index++; } - return scic_sds_port_configuration_agent_validate_ports(ihost, port_agent); + return sci_port_configuration_agent_validate_ports(ihost, port_agent); } static void mpc_agent_timeout(unsigned long data) { u8 index; struct sci_timer *tmr = (struct sci_timer *)data; - struct scic_sds_port_configuration_agent *port_agent; + struct sci_port_configuration_agent *port_agent; struct isci_host *ihost; unsigned long flags; u16 configure_phy_mask; @@ -355,8 +355,8 @@ done: spin_unlock_irqrestore(&ihost->scic_lock, flags); } -static void scic_sds_mpc_agent_link_up(struct isci_host *ihost, - struct scic_sds_port_configuration_agent *port_agent, +static void sci_mpc_agent_link_up(struct isci_host *ihost, + struct sci_port_configuration_agent *port_agent, struct isci_port *iport, struct isci_phy *iphy) { @@ -367,10 +367,10 @@ static void scic_sds_mpc_agent_link_up(struct isci_host *ihost, if (!iport) return; - port_agent->phy_ready_mask |= (1 << scic_sds_phy_get_index(iphy)); - scic_sds_port_link_up(iport, iphy); - if ((iport->active_phy_mask & (1 << scic_sds_phy_get_index(iphy)))) - port_agent->phy_configured_mask |= (1 << scic_sds_phy_get_index(iphy)); + port_agent->phy_ready_mask |= (1 << sci_phy_get_index(iphy)); + sci_port_link_up(iport, iphy); + if ((iport->active_phy_mask & (1 << sci_phy_get_index(iphy)))) + port_agent->phy_configured_mask |= (1 << sci_phy_get_index(iphy)); } /** @@ -390,9 +390,9 @@ static void scic_sds_mpc_agent_link_up(struct isci_host *ihost, * not associated with a port there is no action taken. Is it possible to get a * link down notification from a phy that has no assocoated port? */ -static void scic_sds_mpc_agent_link_down( +static void sci_mpc_agent_link_down( struct isci_host *ihost, - struct scic_sds_port_configuration_agent *port_agent, + struct sci_port_configuration_agent *port_agent, struct isci_port *iport, struct isci_phy *iphy) { @@ -405,9 +405,9 @@ static void scic_sds_mpc_agent_link_down( * state. */ port_agent->phy_ready_mask &= - ~(1 << scic_sds_phy_get_index(iphy)); + ~(1 << sci_phy_get_index(iphy)); port_agent->phy_configured_mask &= - ~(1 << scic_sds_phy_get_index(iphy)); + ~(1 << sci_phy_get_index(iphy)); /* * Check to see if there are more phys waiting to be @@ -424,7 +424,7 @@ static void scic_sds_mpc_agent_link_down( SCIC_SDS_MPC_RECONFIGURATION_TIMEOUT); } - scic_sds_port_link_down(iport, iphy); + sci_port_link_down(iport, iphy); } } @@ -432,8 +432,8 @@ static void scic_sds_mpc_agent_link_down( * configuration mode. */ static enum sci_status -scic_sds_apc_agent_validate_phy_configuration(struct isci_host *ihost, - struct scic_sds_port_configuration_agent *port_agent) +sci_apc_agent_validate_phy_configuration(struct isci_host *ihost, + struct sci_port_configuration_agent *port_agent) { u8 phy_index; u8 port_index; @@ -446,11 +446,11 @@ scic_sds_apc_agent_validate_phy_configuration(struct isci_host *ihost, port_index = phy_index; /* Get the assigned SAS Address for the first PHY on the controller. */ - scic_sds_phy_get_sas_address(&ihost->phys[phy_index], + sci_phy_get_sas_address(&ihost->phys[phy_index], &sas_address); while (++phy_index < SCI_MAX_PHYS) { - scic_sds_phy_get_sas_address(&ihost->phys[phy_index], + sci_phy_get_sas_address(&ihost->phys[phy_index], &phy_assigned_address); /* Verify each of the SAS address are all the same for every PHY */ @@ -465,11 +465,11 @@ scic_sds_apc_agent_validate_phy_configuration(struct isci_host *ihost, } } - return scic_sds_port_configuration_agent_validate_ports(ihost, port_agent); + return sci_port_configuration_agent_validate_ports(ihost, port_agent); } -static void scic_sds_apc_agent_configure_ports(struct isci_host *ihost, - struct scic_sds_port_configuration_agent *port_agent, +static void sci_apc_agent_configure_ports(struct isci_host *ihost, + struct sci_port_configuration_agent *port_agent, struct isci_phy *iphy, bool start_timer) { @@ -478,10 +478,10 @@ static void scic_sds_apc_agent_configure_ports(struct isci_host *ihost, struct isci_port *iport; enum SCIC_SDS_APC_ACTIVITY apc_activity = SCIC_SDS_APC_SKIP_PHY; - iport = scic_sds_port_configuration_agent_find_port(ihost, iphy); + iport = sci_port_configuration_agent_find_port(ihost, iphy); if (iport) { - if (scic_sds_port_is_valid_phy_assignment(iport, iphy->phy_index)) + if (sci_port_is_valid_phy_assignment(iport, iphy->phy_index)) apc_activity = SCIC_SDS_APC_ADD_PHY; else apc_activity = SCIC_SDS_APC_SKIP_PHY; @@ -499,7 +499,7 @@ static void scic_sds_apc_agent_configure_ports(struct isci_host *ihost, iport = &ihost->ports[port_index]; /* First we must make sure that this PHY can be added to this Port. */ - if (scic_sds_port_is_valid_phy_assignment(iport, iphy->phy_index)) { + if (sci_port_is_valid_phy_assignment(iport, iphy->phy_index)) { /* * Port contains a PHY with a greater PHY ID than the current * PHY that has gone link up. This phy can not be part of any @@ -559,7 +559,7 @@ static void scic_sds_apc_agent_configure_ports(struct isci_host *ihost, switch (apc_activity) { case SCIC_SDS_APC_ADD_PHY: - status = scic_sds_port_add_phy(iport, iphy); + status = sci_port_add_phy(iport, iphy); if (status == SCI_SUCCESS) { port_agent->phy_configured_mask |= (1 << iphy->phy_index); @@ -588,7 +588,7 @@ static void scic_sds_apc_agent_configure_ports(struct isci_host *ihost, } /** - * scic_sds_apc_agent_link_up - handle apc link up events + * sci_apc_agent_link_up - handle apc link up events * @scic: This is the controller object that receives the link up * notification. * @sci_port: This is the port object associated with the phy. If the is no @@ -599,8 +599,8 @@ static void scic_sds_apc_agent_configure_ports(struct isci_host *ihost, * notifications. Is it possible to get a link down notification from a phy * that has no assocoated port? */ -static void scic_sds_apc_agent_link_up(struct isci_host *ihost, - struct scic_sds_port_configuration_agent *port_agent, +static void sci_apc_agent_link_up(struct isci_host *ihost, + struct sci_port_configuration_agent *port_agent, struct isci_port *iport, struct isci_phy *iphy) { @@ -609,7 +609,7 @@ static void scic_sds_apc_agent_link_up(struct isci_host *ihost, if (!iport) { /* the phy is not the part of this port */ port_agent->phy_ready_mask |= 1 << phy_index; - scic_sds_apc_agent_configure_ports(ihost, port_agent, iphy, true); + sci_apc_agent_configure_ports(ihost, port_agent, iphy, true); } else { /* the phy is already the part of the port */ u32 port_state = iport->sm.current_state_id; @@ -620,7 +620,7 @@ static void scic_sds_apc_agent_link_up(struct isci_host *ihost, */ BUG_ON(port_state != SCI_PORT_RESETTING); port_agent->phy_ready_mask |= 1 << phy_index; - scic_sds_port_link_up(iport, iphy); + sci_port_link_up(iport, iphy); } } @@ -637,20 +637,20 @@ static void scic_sds_apc_agent_link_up(struct isci_host *ihost, * possible to get a link down notification from a phy that has no assocoated * port? */ -static void scic_sds_apc_agent_link_down( +static void sci_apc_agent_link_down( struct isci_host *ihost, - struct scic_sds_port_configuration_agent *port_agent, + struct sci_port_configuration_agent *port_agent, struct isci_port *iport, struct isci_phy *iphy) { - port_agent->phy_ready_mask &= ~(1 << scic_sds_phy_get_index(iphy)); + port_agent->phy_ready_mask &= ~(1 << sci_phy_get_index(iphy)); if (!iport) return; if (port_agent->phy_configured_mask & (1 << iphy->phy_index)) { enum sci_status status; - status = scic_sds_port_remove_phy(iport, iphy); + status = sci_port_remove_phy(iport, iphy); if (status == SCI_SUCCESS) port_agent->phy_configured_mask &= ~(1 << iphy->phy_index); @@ -662,7 +662,7 @@ static void apc_agent_timeout(unsigned long data) { u32 index; struct sci_timer *tmr = (struct sci_timer *)data; - struct scic_sds_port_configuration_agent *port_agent; + struct sci_port_configuration_agent *port_agent; struct isci_host *ihost; unsigned long flags; u16 configure_phy_mask; @@ -686,7 +686,7 @@ static void apc_agent_timeout(unsigned long data) if ((configure_phy_mask & (1 << index)) == 0) continue; - scic_sds_apc_agent_configure_ports(ihost, port_agent, + sci_apc_agent_configure_ports(ihost, port_agent, &ihost->phys[index], false); } @@ -706,8 +706,8 @@ done: * call is universal for both manual port configuration and automatic port * configuration modes. */ -void scic_sds_port_configuration_agent_construct( - struct scic_sds_port_configuration_agent *port_agent) +void sci_port_configuration_agent_construct( + struct sci_port_configuration_agent *port_agent) { u32 index; @@ -725,29 +725,29 @@ void scic_sds_port_configuration_agent_construct( } } -enum sci_status scic_sds_port_configuration_agent_initialize( +enum sci_status sci_port_configuration_agent_initialize( struct isci_host *ihost, - struct scic_sds_port_configuration_agent *port_agent) + struct sci_port_configuration_agent *port_agent) { enum sci_status status; - enum scic_port_configuration_mode mode; + enum sci_port_configuration_mode mode; - mode = ihost->oem_parameters.sds1.controller.mode_type; + mode = ihost->oem_parameters.controller.mode_type; if (mode == SCIC_PORT_MANUAL_CONFIGURATION_MODE) { - status = scic_sds_mpc_agent_validate_phy_configuration( + status = sci_mpc_agent_validate_phy_configuration( ihost, port_agent); - port_agent->link_up_handler = scic_sds_mpc_agent_link_up; - port_agent->link_down_handler = scic_sds_mpc_agent_link_down; + port_agent->link_up_handler = sci_mpc_agent_link_up; + port_agent->link_down_handler = sci_mpc_agent_link_down; sci_init_timer(&port_agent->timer, mpc_agent_timeout); } else { - status = scic_sds_apc_agent_validate_phy_configuration( + status = sci_apc_agent_validate_phy_configuration( ihost, port_agent); - port_agent->link_up_handler = scic_sds_apc_agent_link_up; - port_agent->link_down_handler = scic_sds_apc_agent_link_down; + port_agent->link_up_handler = sci_apc_agent_link_up; + port_agent->link_down_handler = sci_apc_agent_link_down; sci_init_timer(&port_agent->timer, apc_agent_timeout); } diff --git a/drivers/scsi/isci/probe_roms.c b/drivers/scsi/isci/probe_roms.c index 99b13c19187..c7732fb2888 100644 --- a/drivers/scsi/isci/probe_roms.c +++ b/drivers/scsi/isci/probe_roms.c @@ -111,25 +111,15 @@ struct isci_orom *isci_request_oprom(struct pci_dev *pdev) return rom; } -/** - * isci_parse_oem_parameters() - This method will take OEM parameters - * from the module init parameters and copy them to oem_params. This will - * only copy values that are not set to the module parameter default values - * @oem_parameters: This parameter specifies the controller default OEM - * parameters. It is expected that this has been initialized to the default - * parameters for the controller - * - * - */ -enum sci_status isci_parse_oem_parameters(union scic_oem_parameters *oem_params, +enum sci_status isci_parse_oem_parameters(struct sci_oem_params *oem, struct isci_orom *orom, int scu_index) { /* check for valid inputs */ if (scu_index < 0 || scu_index >= SCI_MAX_CONTROLLERS || - scu_index > orom->hdr.num_elements || !oem_params) + scu_index > orom->hdr.num_elements || !oem) return -EINVAL; - oem_params->sds1 = orom->ctrl[scu_index]; + *oem = orom->ctrl[scu_index]; return 0; } diff --git a/drivers/scsi/isci/probe_roms.h b/drivers/scsi/isci/probe_roms.h index e40cb5f6eba..dc007e692f4 100644 --- a/drivers/scsi/isci/probe_roms.h +++ b/drivers/scsi/isci/probe_roms.h @@ -74,7 +74,7 @@ #define SCIC_SDS_PARM_MAX_SPEED SCIC_SDS_PARM_GEN3_SPEED /* parameters that can be set by module parameters */ -struct scic_sds_user_parameters { +struct sci_user_parameters { struct sci_phy_user_params { /** * This field specifies the NOTIFY (ENABLE SPIN UP) primitive @@ -147,30 +147,16 @@ struct scic_sds_user_parameters { }; -/* XXX kill this union */ -union scic_user_parameters { - /** - * This field specifies the user parameters specific to the - * Storage Controller Unit (SCU) Driver Standard (SDS) version - * 1. - */ - struct scic_sds_user_parameters sds1; -}; - #define SCIC_SDS_PARM_PHY_MASK_MIN 0x0 #define SCIC_SDS_PARM_PHY_MASK_MAX 0xF #define MAX_CONCURRENT_DEVICE_SPIN_UP_COUNT 4 -struct scic_sds_oem_params; -int scic_oem_parameters_validate(struct scic_sds_oem_params *oem); - -union scic_oem_parameters; -void scic_oem_parameters_get(struct isci_host *ihost, - union scic_oem_parameters *oem); +struct sci_oem_params; +int sci_oem_parameters_validate(struct sci_oem_params *oem); struct isci_orom; struct isci_orom *isci_request_oprom(struct pci_dev *pdev); -enum sci_status isci_parse_oem_parameters(union scic_oem_parameters *oem, +enum sci_status isci_parse_oem_parameters(struct sci_oem_params *oem, struct isci_orom *orom, int scu_index); struct isci_orom *isci_request_firmware(struct pci_dev *pdev, const struct firmware *fw); struct isci_orom *isci_get_efi_var(struct pci_dev *pdev); @@ -214,7 +200,7 @@ struct isci_oem_hdr { * A PORT_PHY mask that assigns just a single PHY to a port and no other PHYs * being assigned is sufficient to declare manual PORT configuration. */ -enum scic_port_configuration_mode { +enum sci_port_configuration_mode { SCIC_PORT_MANUAL_CONFIGURATION_MODE = 0, SCIC_PORT_AUTOMATIC_CONFIGURATION_MODE = 1 }; @@ -230,7 +216,7 @@ struct sci_bios_oem_param_block_hdr { uint8_t reserved[8]; } __attribute__ ((packed)); -struct scic_sds_oem_params { +struct sci_oem_params { struct { uint8_t mode_type; uint8_t max_concurrent_dev_spin_up; @@ -255,19 +241,9 @@ struct scic_sds_oem_params { } phys[SCI_MAX_PHYS]; } __attribute__ ((packed)); -/* XXX kill this union */ -union scic_oem_parameters { - /** - * This field specifies the OEM parameters specific to the - * Storage Controller Unit (SCU) Driver Standard (SDS) version - * 1. - */ - struct scic_sds_oem_params sds1; -}; - struct isci_orom { struct sci_bios_oem_param_block_hdr hdr; - struct scic_sds_oem_params ctrl[SCI_MAX_CONTROLLERS]; + struct sci_oem_params ctrl[SCI_MAX_CONTROLLERS]; } __attribute__ ((packed)); #endif diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index 9043b458c99..8c752abb433 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -68,7 +68,7 @@ * @isci_host: This parameter specifies the isci host object. * @isci_device: This parameter specifies the remote device * - * scic_lock is held on entrance to this function. + * sci_lock is held on entrance to this function. */ static void isci_remote_device_not_ready(struct isci_host *ihost, struct isci_remote_device *idev, u32 reason) @@ -92,7 +92,7 @@ static void isci_remote_device_not_ready(struct isci_host *ihost, "%s: isci_device = %p request = %p\n", __func__, idev, ireq); - scic_controller_terminate_request(ihost, + sci_controller_terminate_request(ihost, idev, ireq); } @@ -133,7 +133,7 @@ static void rnc_destruct_done(void *_dev) sci_change_state(&idev->sm, SCI_DEV_STOPPED); } -static enum sci_status scic_sds_remote_device_terminate_requests(struct isci_remote_device *idev) +static enum sci_status sci_remote_device_terminate_requests(struct isci_remote_device *idev) { struct isci_host *ihost = idev->owning_port->owning_controller; enum sci_status status = SCI_SUCCESS; @@ -147,7 +147,7 @@ static enum sci_status scic_sds_remote_device_terminate_requests(struct isci_rem ireq->target_device != idev) continue; - s = scic_controller_terminate_request(ihost, idev, ireq); + s = sci_controller_terminate_request(ihost, idev, ireq); if (s != SCI_SUCCESS) status = s; } @@ -155,11 +155,11 @@ static enum sci_status scic_sds_remote_device_terminate_requests(struct isci_rem return status; } -enum sci_status scic_remote_device_stop(struct isci_remote_device *idev, +enum sci_status sci_remote_device_stop(struct isci_remote_device *idev, u32 timeout) { struct sci_base_state_machine *sm = &idev->sm; - enum scic_sds_remote_device_states state = sm->current_state_id; + enum sci_remote_device_states state = sm->current_state_id; switch (state) { case SCI_DEV_INITIAL: @@ -174,7 +174,7 @@ enum sci_status scic_remote_device_stop(struct isci_remote_device *idev, case SCI_DEV_STARTING: /* device not started so there had better be no requests */ BUG_ON(idev->started_request_count != 0); - scic_sds_remote_node_context_destruct(&idev->rnc, + sci_remote_node_context_destruct(&idev->rnc, rnc_destruct_done, idev); /* Transition to the stopping state and wait for the * remote node to complete being posted and invalidated. @@ -191,28 +191,28 @@ enum sci_status scic_remote_device_stop(struct isci_remote_device *idev, case SCI_SMP_DEV_CMD: sci_change_state(sm, SCI_DEV_STOPPING); if (idev->started_request_count == 0) { - scic_sds_remote_node_context_destruct(&idev->rnc, + sci_remote_node_context_destruct(&idev->rnc, rnc_destruct_done, idev); return SCI_SUCCESS; } else - return scic_sds_remote_device_terminate_requests(idev); + return sci_remote_device_terminate_requests(idev); break; case SCI_DEV_STOPPING: /* All requests should have been terminated, but if there is an * attempt to stop a device already in the stopping state, then * try again to terminate. */ - return scic_sds_remote_device_terminate_requests(idev); + return sci_remote_device_terminate_requests(idev); case SCI_DEV_RESETTING: sci_change_state(sm, SCI_DEV_STOPPING); return SCI_SUCCESS; } } -enum sci_status scic_remote_device_reset(struct isci_remote_device *idev) +enum sci_status sci_remote_device_reset(struct isci_remote_device *idev) { struct sci_base_state_machine *sm = &idev->sm; - enum scic_sds_remote_device_states state = sm->current_state_id; + enum sci_remote_device_states state = sm->current_state_id; switch (state) { case SCI_DEV_INITIAL: @@ -239,10 +239,10 @@ enum sci_status scic_remote_device_reset(struct isci_remote_device *idev) } } -enum sci_status scic_remote_device_reset_complete(struct isci_remote_device *idev) +enum sci_status sci_remote_device_reset_complete(struct isci_remote_device *idev) { struct sci_base_state_machine *sm = &idev->sm; - enum scic_sds_remote_device_states state = sm->current_state_id; + enum sci_remote_device_states state = sm->current_state_id; if (state != SCI_DEV_RESETTING) { dev_warn(scirdev_to_dev(idev), "%s: in wrong state: %d\n", @@ -254,11 +254,11 @@ enum sci_status scic_remote_device_reset_complete(struct isci_remote_device *ide return SCI_SUCCESS; } -enum sci_status scic_sds_remote_device_suspend(struct isci_remote_device *idev, +enum sci_status sci_remote_device_suspend(struct isci_remote_device *idev, u32 suspend_type) { struct sci_base_state_machine *sm = &idev->sm; - enum scic_sds_remote_device_states state = sm->current_state_id; + enum sci_remote_device_states state = sm->current_state_id; if (state != SCI_STP_DEV_CMD) { dev_warn(scirdev_to_dev(idev), "%s: in wrong state: %d\n", @@ -266,15 +266,15 @@ enum sci_status scic_sds_remote_device_suspend(struct isci_remote_device *idev, return SCI_FAILURE_INVALID_STATE; } - return scic_sds_remote_node_context_suspend(&idev->rnc, + return sci_remote_node_context_suspend(&idev->rnc, suspend_type, NULL, NULL); } -enum sci_status scic_sds_remote_device_frame_handler(struct isci_remote_device *idev, +enum sci_status sci_remote_device_frame_handler(struct isci_remote_device *idev, u32 frame_index) { struct sci_base_state_machine *sm = &idev->sm; - enum scic_sds_remote_device_states state = sm->current_state_id; + enum sci_remote_device_states state = sm->current_state_id; struct isci_host *ihost = idev->owning_port->owning_controller; enum sci_status status; @@ -289,7 +289,7 @@ enum sci_status scic_sds_remote_device_frame_handler(struct isci_remote_device * dev_warn(scirdev_to_dev(idev), "%s: in wrong state: %d\n", __func__, state); /* Return the frame back to the controller */ - scic_sds_controller_release_frame(ihost, frame_index); + sci_controller_release_frame(ihost, frame_index); return SCI_FAILURE_INVALID_STATE; case SCI_DEV_READY: case SCI_STP_DEV_NCQ_ERROR: @@ -302,7 +302,7 @@ enum sci_status scic_sds_remote_device_frame_handler(struct isci_remote_device * void *frame_header; ssize_t word_cnt; - status = scic_sds_unsolicited_frame_control_get_header(&ihost->uf_control, + status = sci_unsolicited_frame_control_get_header(&ihost->uf_control, frame_index, &frame_header); if (status != SCI_SUCCESS) @@ -311,22 +311,22 @@ enum sci_status scic_sds_remote_device_frame_handler(struct isci_remote_device * word_cnt = sizeof(hdr) / sizeof(u32); sci_swab32_cpy(&hdr, frame_header, word_cnt); - ireq = scic_request_by_tag(ihost, be16_to_cpu(hdr.tag)); + ireq = sci_request_by_tag(ihost, be16_to_cpu(hdr.tag)); if (ireq && ireq->target_device == idev) { /* The IO request is now in charge of releasing the frame */ - status = scic_sds_io_request_frame_handler(ireq, frame_index); + status = sci_io_request_frame_handler(ireq, frame_index); } else { /* We could not map this tag to a valid IO * request Just toss the frame and continue */ - scic_sds_controller_release_frame(ihost, frame_index); + sci_controller_release_frame(ihost, frame_index); } break; } case SCI_STP_DEV_NCQ: { struct dev_to_host_fis *hdr; - status = scic_sds_unsolicited_frame_control_get_header(&ihost->uf_control, + status = sci_unsolicited_frame_control_get_header(&ihost->uf_control, frame_index, (void **)&hdr); if (status != SCI_SUCCESS) @@ -349,7 +349,7 @@ enum sci_status scic_sds_remote_device_frame_handler(struct isci_remote_device * } else status = SCI_FAILURE; - scic_sds_controller_release_frame(ihost, frame_index); + sci_controller_release_frame(ihost, frame_index); break; } case SCI_STP_DEV_CMD: @@ -358,7 +358,7 @@ enum sci_status scic_sds_remote_device_frame_handler(struct isci_remote_device * * in this state. All unsolicited frames are forwarded to the io request * object. */ - status = scic_sds_io_request_frame_handler(idev->working_request, frame_index); + status = sci_io_request_frame_handler(idev->working_request, frame_index); break; } @@ -369,7 +369,7 @@ static bool is_remote_device_ready(struct isci_remote_device *idev) { struct sci_base_state_machine *sm = &idev->sm; - enum scic_sds_remote_device_states state = sm->current_state_id; + enum sci_remote_device_states state = sm->current_state_id; switch (state) { case SCI_DEV_READY: @@ -386,25 +386,25 @@ static bool is_remote_device_ready(struct isci_remote_device *idev) } } -enum sci_status scic_sds_remote_device_event_handler(struct isci_remote_device *idev, +enum sci_status sci_remote_device_event_handler(struct isci_remote_device *idev, u32 event_code) { struct sci_base_state_machine *sm = &idev->sm; - enum scic_sds_remote_device_states state = sm->current_state_id; + enum sci_remote_device_states state = sm->current_state_id; enum sci_status status; switch (scu_get_event_type(event_code)) { case SCU_EVENT_TYPE_RNC_OPS_MISC: case SCU_EVENT_TYPE_RNC_SUSPEND_TX: case SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX: - status = scic_sds_remote_node_context_event_handler(&idev->rnc, event_code); + status = sci_remote_node_context_event_handler(&idev->rnc, event_code); break; case SCU_EVENT_TYPE_PTX_SCHEDULE_EVENT: if (scu_get_event_code(event_code) == SCU_EVENT_IT_NEXUS_TIMEOUT) { status = SCI_SUCCESS; /* Suspend the associated RNC */ - scic_sds_remote_node_context_suspend(&idev->rnc, + sci_remote_node_context_suspend(&idev->rnc, SCI_SOFTWARE_SUSPENSION, NULL, NULL); @@ -439,13 +439,13 @@ enum sci_status scic_sds_remote_device_event_handler(struct isci_remote_device * */ if (scu_get_event_type(event_code) == SCU_EVENT_TYPE_RNC_SUSPEND_TX || scu_get_event_type(event_code) == SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX) - status = scic_sds_remote_node_context_resume(&idev->rnc, NULL, NULL); + status = sci_remote_node_context_resume(&idev->rnc, NULL, NULL); } return status; } -static void scic_sds_remote_device_start_request(struct isci_remote_device *idev, +static void sci_remote_device_start_request(struct isci_remote_device *idev, struct isci_request *ireq, enum sci_status status) { @@ -453,19 +453,19 @@ static void scic_sds_remote_device_start_request(struct isci_remote_device *idev /* cleanup requests that failed after starting on the port */ if (status != SCI_SUCCESS) - scic_sds_port_complete_io(iport, idev, ireq); + sci_port_complete_io(iport, idev, ireq); else { kref_get(&idev->kref); - scic_sds_remote_device_increment_request_count(idev); + sci_remote_device_increment_request_count(idev); } } -enum sci_status scic_sds_remote_device_start_io(struct isci_host *ihost, +enum sci_status sci_remote_device_start_io(struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq) { struct sci_base_state_machine *sm = &idev->sm; - enum scic_sds_remote_device_states state = sm->current_state_id; + enum sci_remote_device_states state = sm->current_state_id; struct isci_port *iport = idev->owning_port; enum sci_status status; @@ -488,15 +488,15 @@ enum sci_status scic_sds_remote_device_start_io(struct isci_host *ihost, * successful it will start the request for the port object then * increment its own request count. */ - status = scic_sds_port_start_io(iport, idev, ireq); + status = sci_port_start_io(iport, idev, ireq); if (status != SCI_SUCCESS) return status; - status = scic_sds_remote_node_context_start_io(&idev->rnc, ireq); + status = sci_remote_node_context_start_io(&idev->rnc, ireq); if (status != SCI_SUCCESS) break; - status = scic_sds_request_start(ireq); + status = sci_request_start(ireq); break; case SCI_STP_DEV_IDLE: { /* handle the start io operation for a sata device that is in @@ -507,18 +507,18 @@ enum sci_status scic_sds_remote_device_start_io(struct isci_host *ihost, * If this is a softreset we may want to have a different * substate. */ - enum scic_sds_remote_device_states new_state; + enum sci_remote_device_states new_state; struct sas_task *task = isci_request_access_task(ireq); - status = scic_sds_port_start_io(iport, idev, ireq); + status = sci_port_start_io(iport, idev, ireq); if (status != SCI_SUCCESS) return status; - status = scic_sds_remote_node_context_start_io(&idev->rnc, ireq); + status = sci_remote_node_context_start_io(&idev->rnc, ireq); if (status != SCI_SUCCESS) break; - status = scic_sds_request_start(ireq); + status = sci_request_start(ireq); if (status != SCI_SUCCESS) break; @@ -535,15 +535,15 @@ enum sci_status scic_sds_remote_device_start_io(struct isci_host *ihost, struct sas_task *task = isci_request_access_task(ireq); if (task->ata_task.use_ncq) { - status = scic_sds_port_start_io(iport, idev, ireq); + status = sci_port_start_io(iport, idev, ireq); if (status != SCI_SUCCESS) return status; - status = scic_sds_remote_node_context_start_io(&idev->rnc, ireq); + status = sci_remote_node_context_start_io(&idev->rnc, ireq); if (status != SCI_SUCCESS) break; - status = scic_sds_request_start(ireq); + status = sci_request_start(ireq); } else return SCI_FAILURE_INVALID_STATE; break; @@ -551,15 +551,15 @@ enum sci_status scic_sds_remote_device_start_io(struct isci_host *ihost, case SCI_STP_DEV_AWAIT_RESET: return SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED; case SCI_SMP_DEV_IDLE: - status = scic_sds_port_start_io(iport, idev, ireq); + status = sci_port_start_io(iport, idev, ireq); if (status != SCI_SUCCESS) return status; - status = scic_sds_remote_node_context_start_io(&idev->rnc, ireq); + status = sci_remote_node_context_start_io(&idev->rnc, ireq); if (status != SCI_SUCCESS) break; - status = scic_sds_request_start(ireq); + status = sci_request_start(ireq); if (status != SCI_SUCCESS) break; @@ -574,7 +574,7 @@ enum sci_status scic_sds_remote_device_start_io(struct isci_host *ihost, return SCI_FAILURE_INVALID_STATE; } - scic_sds_remote_device_start_request(idev, ireq, status); + sci_remote_device_start_request(idev, ireq, status); return status; } @@ -584,24 +584,24 @@ static enum sci_status common_complete_io(struct isci_port *iport, { enum sci_status status; - status = scic_sds_request_complete(ireq); + status = sci_request_complete(ireq); if (status != SCI_SUCCESS) return status; - status = scic_sds_port_complete_io(iport, idev, ireq); + status = sci_port_complete_io(iport, idev, ireq); if (status != SCI_SUCCESS) return status; - scic_sds_remote_device_decrement_request_count(idev); + sci_remote_device_decrement_request_count(idev); return status; } -enum sci_status scic_sds_remote_device_complete_io(struct isci_host *ihost, +enum sci_status sci_remote_device_complete_io(struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq) { struct sci_base_state_machine *sm = &idev->sm; - enum scic_sds_remote_device_states state = sm->current_state_id; + enum sci_remote_device_states state = sm->current_state_id; struct isci_port *iport = idev->owning_port; enum sci_status status; @@ -636,7 +636,7 @@ enum sci_status scic_sds_remote_device_complete_io(struct isci_host *ihost, * status of "DEVICE_RESET_REQUIRED", instead of "INVALID STATE". */ sci_change_state(sm, SCI_STP_DEV_AWAIT_RESET); - } else if (scic_sds_remote_device_get_request_count(idev) == 0) + } else if (sci_remote_device_get_request_count(idev) == 0) sci_change_state(sm, SCI_STP_DEV_IDLE); break; case SCI_SMP_DEV_CMD: @@ -650,8 +650,8 @@ enum sci_status scic_sds_remote_device_complete_io(struct isci_host *ihost, if (status != SCI_SUCCESS) break; - if (scic_sds_remote_device_get_request_count(idev) == 0) - scic_sds_remote_node_context_destruct(&idev->rnc, + if (sci_remote_device_get_request_count(idev) == 0) + sci_remote_node_context_destruct(&idev->rnc, rnc_destruct_done, idev); break; @@ -668,21 +668,21 @@ enum sci_status scic_sds_remote_device_complete_io(struct isci_host *ihost, return status; } -static void scic_sds_remote_device_continue_request(void *dev) +static void sci_remote_device_continue_request(void *dev) { struct isci_remote_device *idev = dev; /* we need to check if this request is still valid to continue. */ if (idev->working_request) - scic_controller_continue_io(idev->working_request); + sci_controller_continue_io(idev->working_request); } -enum sci_status scic_sds_remote_device_start_task(struct isci_host *ihost, +enum sci_status sci_remote_device_start_task(struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq) { struct sci_base_state_machine *sm = &idev->sm; - enum scic_sds_remote_device_states state = sm->current_state_id; + enum sci_remote_device_states state = sm->current_state_id; struct isci_port *iport = idev->owning_port; enum sci_status status; @@ -705,15 +705,15 @@ enum sci_status scic_sds_remote_device_start_task(struct isci_host *ihost, case SCI_STP_DEV_NCQ: case SCI_STP_DEV_NCQ_ERROR: case SCI_STP_DEV_AWAIT_RESET: - status = scic_sds_port_start_io(iport, idev, ireq); + status = sci_port_start_io(iport, idev, ireq); if (status != SCI_SUCCESS) return status; - status = scic_sds_remote_node_context_start_task(&idev->rnc, ireq); + status = sci_remote_node_context_start_task(&idev->rnc, ireq); if (status != SCI_SUCCESS) goto out; - status = scic_sds_request_start(ireq); + status = sci_request_start(ireq); if (status != SCI_SUCCESS) goto out; @@ -731,32 +731,32 @@ enum sci_status scic_sds_remote_device_start_task(struct isci_host *ihost, * the correct action when the remote node context is suspended * and later resumed. */ - scic_sds_remote_node_context_suspend(&idev->rnc, + sci_remote_node_context_suspend(&idev->rnc, SCI_SOFTWARE_SUSPENSION, NULL, NULL); - scic_sds_remote_node_context_resume(&idev->rnc, - scic_sds_remote_device_continue_request, + sci_remote_node_context_resume(&idev->rnc, + sci_remote_device_continue_request, idev); out: - scic_sds_remote_device_start_request(idev, ireq, status); + sci_remote_device_start_request(idev, ireq, status); /* We need to let the controller start request handler know that * it can't post TC yet. We will provide a callback function to * post TC when RNC gets resumed. */ return SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS; case SCI_DEV_READY: - status = scic_sds_port_start_io(iport, idev, ireq); + status = sci_port_start_io(iport, idev, ireq); if (status != SCI_SUCCESS) return status; - status = scic_sds_remote_node_context_start_task(&idev->rnc, ireq); + status = sci_remote_node_context_start_task(&idev->rnc, ireq); if (status != SCI_SUCCESS) break; - status = scic_sds_request_start(ireq); + status = sci_request_start(ireq); break; } - scic_sds_remote_device_start_request(idev, ireq, status); + sci_remote_device_start_request(idev, ireq, status); return status; } @@ -769,16 +769,16 @@ enum sci_status scic_sds_remote_device_start_task(struct isci_host *ihost, * This method takes the request and bulids an appropriate SCU context for the * request and then requests the controller to post the request. none */ -void scic_sds_remote_device_post_request( +void sci_remote_device_post_request( struct isci_remote_device *idev, u32 request) { u32 context; - context = scic_sds_remote_device_build_command_context(idev, request); + context = sci_remote_device_build_command_context(idev, request); - scic_sds_controller_post_request( - scic_sds_remote_device_get_controller(idev), + sci_controller_post_request( + sci_remote_device_get_controller(idev), context ); } @@ -798,7 +798,7 @@ static void remote_device_resume_done(void *_dev) sci_change_state(&idev->sm, SCI_DEV_READY); } -static void scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handler(void *_dev) +static void sci_stp_remote_device_ready_idle_substate_resume_complete_handler(void *_dev) { struct isci_remote_device *idev = _dev; struct isci_host *ihost = idev->owning_port->owning_controller; @@ -810,7 +810,7 @@ static void scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handl isci_remote_device_ready(ihost, idev); } -static void scic_sds_remote_device_initial_state_enter(struct sci_base_state_machine *sm) +static void sci_remote_device_initial_state_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); @@ -819,7 +819,7 @@ static void scic_sds_remote_device_initial_state_enter(struct sci_base_state_mac } /** - * scic_remote_device_destruct() - free remote node context and destruct + * sci_remote_device_destruct() - free remote node context and destruct * @remote_device: This parameter specifies the remote device to be destructed. * * Remote device objects are a limited resource. As such, they must be @@ -831,10 +831,10 @@ static void scic_sds_remote_device_initial_state_enter(struct sci_base_state_mac * device isn't valid (e.g. it's already been destoryed, the handle isn't * valid, etc.). */ -static enum sci_status scic_remote_device_destruct(struct isci_remote_device *idev) +static enum sci_status sci_remote_device_destruct(struct isci_remote_device *idev) { struct sci_base_state_machine *sm = &idev->sm; - enum scic_sds_remote_device_states state = sm->current_state_id; + enum sci_remote_device_states state = sm->current_state_id; struct isci_host *ihost; if (state != SCI_DEV_STOPPED) { @@ -844,7 +844,7 @@ static enum sci_status scic_remote_device_destruct(struct isci_remote_device *id } ihost = idev->owning_port->owning_controller; - scic_sds_controller_free_remote_node_context(ihost, idev, + sci_controller_free_remote_node_context(ihost, idev, idev->rnc.remote_node_index); idev->rnc.remote_node_index = SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX; sci_change_state(sm, SCI_DEV_FINAL); @@ -869,12 +869,12 @@ static void isci_remote_device_deconstruct(struct isci_host *ihost, struct isci_ * io requests in process */ BUG_ON(!list_empty(&idev->reqs_in_process)); - scic_remote_device_destruct(idev); + sci_remote_device_destruct(idev); list_del_init(&idev->node); isci_put_device(idev); } -static void scic_sds_remote_device_stopped_state_enter(struct sci_base_state_machine *sm) +static void sci_remote_device_stopped_state_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); struct isci_host *ihost = idev->owning_port->owning_controller; @@ -887,19 +887,19 @@ static void scic_sds_remote_device_stopped_state_enter(struct sci_base_state_mac if (prev_state == SCI_DEV_STOPPING) isci_remote_device_deconstruct(ihost, idev); - scic_sds_controller_remote_device_stopped(ihost, idev); + sci_controller_remote_device_stopped(ihost, idev); } -static void scic_sds_remote_device_starting_state_enter(struct sci_base_state_machine *sm) +static void sci_remote_device_starting_state_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - struct isci_host *ihost = scic_sds_remote_device_get_controller(idev); + struct isci_host *ihost = sci_remote_device_get_controller(idev); isci_remote_device_not_ready(ihost, idev, SCIC_REMOTE_DEVICE_NOT_READY_START_REQUESTED); } -static void scic_sds_remote_device_ready_state_enter(struct sci_base_state_machine *sm) +static void sci_remote_device_ready_state_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); struct isci_host *ihost = idev->owning_port->owning_controller; @@ -913,7 +913,7 @@ static void scic_sds_remote_device_ready_state_enter(struct sci_base_state_machi isci_remote_device_ready(ihost, idev); } -static void scic_sds_remote_device_ready_state_exit(struct sci_base_state_machine *sm) +static void sci_remote_device_ready_state_exit(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); struct domain_device *dev = idev->domain_dev; @@ -926,42 +926,42 @@ static void scic_sds_remote_device_ready_state_exit(struct sci_base_state_machin } } -static void scic_sds_remote_device_resetting_state_enter(struct sci_base_state_machine *sm) +static void sci_remote_device_resetting_state_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - scic_sds_remote_node_context_suspend( + sci_remote_node_context_suspend( &idev->rnc, SCI_SOFTWARE_SUSPENSION, NULL, NULL); } -static void scic_sds_remote_device_resetting_state_exit(struct sci_base_state_machine *sm) +static void sci_remote_device_resetting_state_exit(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - scic_sds_remote_node_context_resume(&idev->rnc, NULL, NULL); + sci_remote_node_context_resume(&idev->rnc, NULL, NULL); } -static void scic_sds_stp_remote_device_ready_idle_substate_enter(struct sci_base_state_machine *sm) +static void sci_stp_remote_device_ready_idle_substate_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); idev->working_request = NULL; - if (scic_sds_remote_node_context_is_ready(&idev->rnc)) { + if (sci_remote_node_context_is_ready(&idev->rnc)) { /* * Since the RNC is ready, it's alright to finish completion * processing (e.g. signal the remote device is ready). */ - scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handler(idev); + sci_stp_remote_device_ready_idle_substate_resume_complete_handler(idev); } else { - scic_sds_remote_node_context_resume(&idev->rnc, - scic_sds_stp_remote_device_ready_idle_substate_resume_complete_handler, + sci_remote_node_context_resume(&idev->rnc, + sci_stp_remote_device_ready_idle_substate_resume_complete_handler, idev); } } -static void scic_sds_stp_remote_device_ready_cmd_substate_enter(struct sci_base_state_machine *sm) +static void sci_stp_remote_device_ready_cmd_substate_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - struct isci_host *ihost = scic_sds_remote_device_get_controller(idev); + struct isci_host *ihost = sci_remote_device_get_controller(idev); BUG_ON(idev->working_request == NULL); @@ -969,28 +969,28 @@ static void scic_sds_stp_remote_device_ready_cmd_substate_enter(struct sci_base_ SCIC_REMOTE_DEVICE_NOT_READY_SATA_REQUEST_STARTED); } -static void scic_sds_stp_remote_device_ready_ncq_error_substate_enter(struct sci_base_state_machine *sm) +static void sci_stp_remote_device_ready_ncq_error_substate_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - struct isci_host *ihost = scic_sds_remote_device_get_controller(idev); + struct isci_host *ihost = sci_remote_device_get_controller(idev); if (idev->not_ready_reason == SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED) isci_remote_device_not_ready(ihost, idev, idev->not_ready_reason); } -static void scic_sds_smp_remote_device_ready_idle_substate_enter(struct sci_base_state_machine *sm) +static void sci_smp_remote_device_ready_idle_substate_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - struct isci_host *ihost = scic_sds_remote_device_get_controller(idev); + struct isci_host *ihost = sci_remote_device_get_controller(idev); isci_remote_device_ready(ihost, idev); } -static void scic_sds_smp_remote_device_ready_cmd_substate_enter(struct sci_base_state_machine *sm) +static void sci_smp_remote_device_ready_cmd_substate_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - struct isci_host *ihost = scic_sds_remote_device_get_controller(idev); + struct isci_host *ihost = sci_remote_device_get_controller(idev); BUG_ON(idev->working_request == NULL); @@ -998,83 +998,83 @@ static void scic_sds_smp_remote_device_ready_cmd_substate_enter(struct sci_base_ SCIC_REMOTE_DEVICE_NOT_READY_SMP_REQUEST_STARTED); } -static void scic_sds_smp_remote_device_ready_cmd_substate_exit(struct sci_base_state_machine *sm) +static void sci_smp_remote_device_ready_cmd_substate_exit(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); idev->working_request = NULL; } -static const struct sci_base_state scic_sds_remote_device_state_table[] = { +static const struct sci_base_state sci_remote_device_state_table[] = { [SCI_DEV_INITIAL] = { - .enter_state = scic_sds_remote_device_initial_state_enter, + .enter_state = sci_remote_device_initial_state_enter, }, [SCI_DEV_STOPPED] = { - .enter_state = scic_sds_remote_device_stopped_state_enter, + .enter_state = sci_remote_device_stopped_state_enter, }, [SCI_DEV_STARTING] = { - .enter_state = scic_sds_remote_device_starting_state_enter, + .enter_state = sci_remote_device_starting_state_enter, }, [SCI_DEV_READY] = { - .enter_state = scic_sds_remote_device_ready_state_enter, - .exit_state = scic_sds_remote_device_ready_state_exit + .enter_state = sci_remote_device_ready_state_enter, + .exit_state = sci_remote_device_ready_state_exit }, [SCI_STP_DEV_IDLE] = { - .enter_state = scic_sds_stp_remote_device_ready_idle_substate_enter, + .enter_state = sci_stp_remote_device_ready_idle_substate_enter, }, [SCI_STP_DEV_CMD] = { - .enter_state = scic_sds_stp_remote_device_ready_cmd_substate_enter, + .enter_state = sci_stp_remote_device_ready_cmd_substate_enter, }, [SCI_STP_DEV_NCQ] = { }, [SCI_STP_DEV_NCQ_ERROR] = { - .enter_state = scic_sds_stp_remote_device_ready_ncq_error_substate_enter, + .enter_state = sci_stp_remote_device_ready_ncq_error_substate_enter, }, [SCI_STP_DEV_AWAIT_RESET] = { }, [SCI_SMP_DEV_IDLE] = { - .enter_state = scic_sds_smp_remote_device_ready_idle_substate_enter, + .enter_state = sci_smp_remote_device_ready_idle_substate_enter, }, [SCI_SMP_DEV_CMD] = { - .enter_state = scic_sds_smp_remote_device_ready_cmd_substate_enter, - .exit_state = scic_sds_smp_remote_device_ready_cmd_substate_exit, + .enter_state = sci_smp_remote_device_ready_cmd_substate_enter, + .exit_state = sci_smp_remote_device_ready_cmd_substate_exit, }, [SCI_DEV_STOPPING] = { }, [SCI_DEV_FAILED] = { }, [SCI_DEV_RESETTING] = { - .enter_state = scic_sds_remote_device_resetting_state_enter, - .exit_state = scic_sds_remote_device_resetting_state_exit + .enter_state = sci_remote_device_resetting_state_enter, + .exit_state = sci_remote_device_resetting_state_exit }, [SCI_DEV_FINAL] = { }, }; /** - * scic_remote_device_construct() - common construction + * sci_remote_device_construct() - common construction * @sci_port: SAS/SATA port through which this device is accessed. * @sci_dev: remote device to construct * * This routine just performs benign initialization and does not * allocate the remote_node_context which is left to - * scic_remote_device_[de]a_construct(). scic_remote_device_destruct() + * sci_remote_device_[de]a_construct(). sci_remote_device_destruct() * frees the remote_node_context(s) for the device. */ -static void scic_remote_device_construct(struct isci_port *iport, +static void sci_remote_device_construct(struct isci_port *iport, struct isci_remote_device *idev) { idev->owning_port = iport; idev->started_request_count = 0; - sci_init_sm(&idev->sm, scic_sds_remote_device_state_table, SCI_DEV_INITIAL); + sci_init_sm(&idev->sm, sci_remote_device_state_table, SCI_DEV_INITIAL); - scic_sds_remote_node_context_construct(&idev->rnc, + sci_remote_node_context_construct(&idev->rnc, SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX); } /** - * scic_remote_device_da_construct() - construct direct attached device. + * sci_remote_device_da_construct() - construct direct attached device. * * The information (e.g. IAF, Signature FIS, etc.) necessary to build * the device is known to the SCI Core since it is contained in the - * scic_phy object. Remote node context(s) is/are a global resource - * allocated by this routine, freed by scic_remote_device_destruct(). + * sci_phy object. Remote node context(s) is/are a global resource + * allocated by this routine, freed by sci_remote_device_destruct(). * * Returns: * SCI_FAILURE_DEVICE_EXISTS - device has already been constructed. @@ -1082,20 +1082,20 @@ static void scic_remote_device_construct(struct isci_port *iport, * sata-only controller instance. * SCI_FAILURE_INSUFFICIENT_RESOURCES - remote node contexts exhausted. */ -static enum sci_status scic_remote_device_da_construct(struct isci_port *iport, +static enum sci_status sci_remote_device_da_construct(struct isci_port *iport, struct isci_remote_device *idev) { enum sci_status status; struct domain_device *dev = idev->domain_dev; - scic_remote_device_construct(iport, idev); + sci_remote_device_construct(iport, idev); /* * This information is request to determine how many remote node context * entries will be needed to store the remote node. */ idev->is_direct_attached = true; - status = scic_sds_controller_allocate_remote_node_context(iport->owning_controller, + status = sci_controller_allocate_remote_node_context(iport->owning_controller, idev, &idev->rnc.remote_node_index); @@ -1108,7 +1108,7 @@ static enum sci_status scic_remote_device_da_construct(struct isci_port *iport, else return SCI_FAILURE_UNSUPPORTED_PROTOCOL; - idev->connection_rate = scic_sds_port_get_max_allowed_speed(iport); + idev->connection_rate = sci_port_get_max_allowed_speed(iport); /* / @todo Should I assign the port width by reading all of the phys on the port? */ idev->device_port_width = 1; @@ -1117,10 +1117,10 @@ static enum sci_status scic_remote_device_da_construct(struct isci_port *iport, } /** - * scic_remote_device_ea_construct() - construct expander attached device + * sci_remote_device_ea_construct() - construct expander attached device * * Remote node context(s) is/are a global resource allocated by this - * routine, freed by scic_remote_device_destruct(). + * routine, freed by sci_remote_device_destruct(). * * Returns: * SCI_FAILURE_DEVICE_EXISTS - device has already been constructed. @@ -1128,15 +1128,15 @@ static enum sci_status scic_remote_device_da_construct(struct isci_port *iport, * sata-only controller instance. * SCI_FAILURE_INSUFFICIENT_RESOURCES - remote node contexts exhausted. */ -static enum sci_status scic_remote_device_ea_construct(struct isci_port *iport, +static enum sci_status sci_remote_device_ea_construct(struct isci_port *iport, struct isci_remote_device *idev) { struct domain_device *dev = idev->domain_dev; enum sci_status status; - scic_remote_device_construct(iport, idev); + sci_remote_device_construct(iport, idev); - status = scic_sds_controller_allocate_remote_node_context(iport->owning_controller, + status = sci_controller_allocate_remote_node_context(iport->owning_controller, idev, &idev->rnc.remote_node_index); if (status != SCI_SUCCESS) @@ -1155,7 +1155,7 @@ static enum sci_status scic_remote_device_ea_construct(struct isci_port *iport, * connection the logical link rate is that same as the * physical. Furthermore, the SAS-2 and SAS-1.1 fields overlay * one another, so this code works for both situations. */ - idev->connection_rate = min_t(u16, scic_sds_port_get_max_allowed_speed(iport), + idev->connection_rate = min_t(u16, sci_port_get_max_allowed_speed(iport), dev->linkrate); /* / @todo Should I assign the port width by reading all of the phys on the port? */ @@ -1165,7 +1165,7 @@ static enum sci_status scic_remote_device_ea_construct(struct isci_port *iport, } /** - * scic_remote_device_start() - This method will start the supplied remote + * sci_remote_device_start() - This method will start the supplied remote * device. This method enables normal IO requests to flow through to the * remote device. * @remote_device: This parameter specifies the device to be started. @@ -1177,11 +1177,11 @@ static enum sci_status scic_remote_device_ea_construct(struct isci_port *iport, * SCI_FAILURE_INVALID_PHY This value is returned if the user attempts to start * the device when there have been no phys added to it. */ -static enum sci_status scic_remote_device_start(struct isci_remote_device *idev, +static enum sci_status sci_remote_device_start(struct isci_remote_device *idev, u32 timeout) { struct sci_base_state_machine *sm = &idev->sm; - enum scic_sds_remote_device_states state = sm->current_state_id; + enum sci_remote_device_states state = sm->current_state_id; enum sci_status status; if (state != SCI_DEV_STOPPED) { @@ -1190,7 +1190,7 @@ static enum sci_status scic_remote_device_start(struct isci_remote_device *idev, return SCI_FAILURE_INVALID_STATE; } - status = scic_sds_remote_node_context_resume(&idev->rnc, + status = sci_remote_node_context_resume(&idev->rnc, remote_device_resume_done, idev); if (status != SCI_SUCCESS) @@ -1209,9 +1209,9 @@ static enum sci_status isci_remote_device_construct(struct isci_port *iport, enum sci_status status; if (dev->parent && dev_is_expander(dev->parent)) - status = scic_remote_device_ea_construct(iport, idev); + status = sci_remote_device_ea_construct(iport, idev); else - status = scic_remote_device_da_construct(iport, idev); + status = sci_remote_device_da_construct(iport, idev); if (status != SCI_SUCCESS) { dev_dbg(&ihost->pdev->dev, "%s: construct failed: %d\n", @@ -1221,7 +1221,7 @@ static enum sci_status isci_remote_device_construct(struct isci_port *iport, } /* start the device. */ - status = scic_remote_device_start(idev, ISCI_REMOTE_DEVICE_START_TIMEOUT); + status = sci_remote_device_start(idev, ISCI_REMOTE_DEVICE_START_TIMEOUT); if (status != SCI_SUCCESS) dev_warn(&ihost->pdev->dev, "remote device start failed: %d\n", @@ -1322,7 +1322,7 @@ enum sci_status isci_remote_device_stop(struct isci_host *ihost, struct isci_rem set_bit(IDEV_STOP_PENDING, &idev->flags); spin_lock_irqsave(&ihost->scic_lock, flags); - status = scic_remote_device_stop(idev, 50); + status = sci_remote_device_stop(idev, 50); spin_unlock_irqrestore(&ihost->scic_lock, flags); /* Wait for the stop complete callback. */ diff --git a/drivers/scsi/isci/remote_device.h b/drivers/scsi/isci/remote_device.h index bc4da20a13f..fa9a0e6cc30 100644 --- a/drivers/scsi/isci/remote_device.h +++ b/drivers/scsi/isci/remote_device.h @@ -61,7 +61,7 @@ #include "remote_node_context.h" #include "port.h" -enum scic_remote_device_not_ready_reason_code { +enum sci_remote_device_not_ready_reason_code { SCIC_REMOTE_DEVICE_NOT_READY_START_REQUESTED, SCIC_REMOTE_DEVICE_NOT_READY_STOP_REQUESTED, SCIC_REMOTE_DEVICE_NOT_READY_SATA_REQUEST_STARTED, @@ -97,7 +97,7 @@ struct isci_remote_device { enum sas_linkrate connection_rate; bool is_direct_attached; struct isci_port *owning_port; - struct scic_sds_remote_node_context rnc; + struct sci_remote_node_context rnc; /* XXX unify with device reference counting and delete */ u32 started_request_count; struct isci_request *working_request; @@ -106,7 +106,7 @@ struct isci_remote_device { #define ISCI_REMOTE_DEVICE_START_TIMEOUT 5000 -/* device reference routines must be called under scic_lock */ +/* device reference routines must be called under sci_lock */ static inline struct isci_remote_device *isci_lookup_device(struct domain_device *dev) { struct isci_remote_device *idev = dev->lldd_dev; @@ -137,7 +137,7 @@ bool isci_device_is_reset_pending(struct isci_host *ihost, void isci_device_clear_reset_pending(struct isci_host *ihost, struct isci_remote_device *idev); /** - * scic_remote_device_stop() - This method will stop both transmission and + * sci_remote_device_stop() - This method will stop both transmission and * reception of link activity for the supplied remote device. This method * disables normal IO requests from flowing through to the remote device. * @remote_device: This parameter specifies the device to be stopped. @@ -148,12 +148,12 @@ void isci_device_clear_reset_pending(struct isci_host *ihost, * This value is returned if the transmission and reception for the device was * successfully stopped. */ -enum sci_status scic_remote_device_stop( +enum sci_status sci_remote_device_stop( struct isci_remote_device *idev, u32 timeout); /** - * scic_remote_device_reset() - This method will reset the device making it + * sci_remote_device_reset() - This method will reset the device making it * ready for operation. This method must be called anytime the device is * reset either through a SMP phy control or a port hard reset request. * @remote_device: This parameter specifies the device to be reset. @@ -164,11 +164,11 @@ enum sci_status scic_remote_device_stop( * was accepted. SCI_SUCCESS This value is returned if the device reset is * started. */ -enum sci_status scic_remote_device_reset( +enum sci_status sci_remote_device_reset( struct isci_remote_device *idev); /** - * scic_remote_device_reset_complete() - This method informs the device object + * sci_remote_device_reset_complete() - This method informs the device object * that the reset operation is complete and the device can resume operation * again. * @remote_device: This parameter specifies the device which is to be informed @@ -177,18 +177,16 @@ enum sci_status scic_remote_device_reset( * An indication that the device is resuming operation. SCI_SUCCESS the device * is resuming operation. */ -enum sci_status scic_remote_device_reset_complete( +enum sci_status sci_remote_device_reset_complete( struct isci_remote_device *idev); -#define scic_remote_device_is_atapi(device_handle) false - /** - * enum scic_sds_remote_device_states - This enumeration depicts all the states + * enum sci_remote_device_states - This enumeration depicts all the states * for the common remote device state machine. * * */ -enum scic_sds_remote_device_states { +enum sci_remote_device_states { /** * Simply the initial state for the base remote device state machine. */ @@ -293,7 +291,7 @@ enum scic_sds_remote_device_states { SCI_DEV_FINAL, }; -static inline struct isci_remote_device *rnc_to_dev(struct scic_sds_remote_node_context *rnc) +static inline struct isci_remote_device *rnc_to_dev(struct sci_remote_node_context *rnc) { struct isci_remote_device *idev; @@ -308,122 +306,120 @@ static inline bool dev_is_expander(struct domain_device *dev) } /** - * scic_sds_remote_device_increment_request_count() - + * sci_remote_device_increment_request_count() - * * This macro incrments the request count for this device */ -#define scic_sds_remote_device_increment_request_count(idev) \ +#define sci_remote_device_increment_request_count(idev) \ ((idev)->started_request_count++) /** - * scic_sds_remote_device_decrement_request_count() - + * sci_remote_device_decrement_request_count() - * * This macro decrements the request count for this device. This count will * never decrment past 0. */ -#define scic_sds_remote_device_decrement_request_count(idev) \ +#define sci_remote_device_decrement_request_count(idev) \ ((idev)->started_request_count > 0 ? \ (idev)->started_request_count-- : 0) /** - * scic_sds_remote_device_get_request_count() - + * sci_remote_device_get_request_count() - * * This is a helper macro to return the current device request count. */ -#define scic_sds_remote_device_get_request_count(idev) \ +#define sci_remote_device_get_request_count(idev) \ ((idev)->started_request_count) /** - * scic_sds_remote_device_get_controller() - + * sci_remote_device_get_controller() - * * This macro returns the controller object that contains this device object */ -#define scic_sds_remote_device_get_controller(idev) \ - scic_sds_port_get_controller(scic_sds_remote_device_get_port(idev)) +#define sci_remote_device_get_controller(idev) \ + sci_port_get_controller(sci_remote_device_get_port(idev)) /** - * scic_sds_remote_device_get_port() - + * sci_remote_device_get_port() - * * This macro returns the owning port of this device */ -#define scic_sds_remote_device_get_port(idev) \ +#define sci_remote_device_get_port(idev) \ ((idev)->owning_port) /** - * scic_sds_remote_device_get_controller_peg() - + * sci_remote_device_get_controller_peg() - * * This macro returns the controllers protocol engine group */ -#define scic_sds_remote_device_get_controller_peg(idev) \ +#define sci_remote_device_get_controller_peg(idev) \ (\ - scic_sds_controller_get_protocol_engine_group(\ - scic_sds_port_get_controller(\ - scic_sds_remote_device_get_port(idev) \ + sci_controller_get_protocol_engine_group(\ + sci_port_get_controller(\ + sci_remote_device_get_port(idev) \ ) \ ) \ ) /** - * scic_sds_remote_device_get_index() - + * sci_remote_device_get_index() - * * This macro returns the remote node index for this device object */ -#define scic_sds_remote_device_get_index(idev) \ +#define sci_remote_device_get_index(idev) \ ((idev)->rnc.remote_node_index) /** - * scic_sds_remote_device_build_command_context() - + * sci_remote_device_build_command_context() - * * This macro builds a remote device context for the SCU post request operation */ -#define scic_sds_remote_device_build_command_context(device, command) \ +#define sci_remote_device_build_command_context(device, command) \ ((command) \ - | (scic_sds_remote_device_get_controller_peg((device)) << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) \ + | (sci_remote_device_get_controller_peg((device)) << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) \ | ((device)->owning_port->physical_port_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) \ - | (scic_sds_remote_device_get_index((device))) \ + | (sci_remote_device_get_index((device))) \ ) /** - * scic_sds_remote_device_set_working_request() - + * sci_remote_device_set_working_request() - * * This macro makes the working request assingment for the remote device * object. To clear the working request use this macro with a NULL request * object. */ -#define scic_sds_remote_device_set_working_request(device, request) \ +#define sci_remote_device_set_working_request(device, request) \ ((device)->working_request = (request)) -enum sci_status scic_sds_remote_device_frame_handler( +enum sci_status sci_remote_device_frame_handler( struct isci_remote_device *idev, u32 frame_index); -enum sci_status scic_sds_remote_device_event_handler( +enum sci_status sci_remote_device_event_handler( struct isci_remote_device *idev, u32 event_code); -enum sci_status scic_sds_remote_device_start_io( +enum sci_status sci_remote_device_start_io( struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq); -enum sci_status scic_sds_remote_device_start_task( +enum sci_status sci_remote_device_start_task( struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq); -enum sci_status scic_sds_remote_device_complete_io( +enum sci_status sci_remote_device_complete_io( struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq); -enum sci_status scic_sds_remote_device_suspend( +enum sci_status sci_remote_device_suspend( struct isci_remote_device *idev, u32 suspend_type); -void scic_sds_remote_device_post_request( +void sci_remote_device_post_request( struct isci_remote_device *idev, u32 request); -#define scic_sds_remote_device_is_atapi(idev) false - #endif /* !defined(_ISCI_REMOTE_DEVICE_H_) */ diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index 8a5203b6eb0..c2dfd5a7218 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -81,8 +81,8 @@ * otherwise it will return false bool true if the remote node context is in * the ready state. false if the remote node context is not in the ready state. */ -bool scic_sds_remote_node_context_is_ready( - struct scic_sds_remote_node_context *sci_rnc) +bool sci_remote_node_context_is_ready( + struct sci_remote_node_context *sci_rnc) { u32 current_state = sci_rnc->sm.current_state_id; @@ -93,15 +93,16 @@ bool scic_sds_remote_node_context_is_ready( return false; } -/** - * - * @sci_dev: The remote device to use to construct the RNC buffer. - * @rnc: The buffer into which the remote device data will be copied. - * - * This method will construct the RNC buffer for this remote device object. none - */ -static void scic_sds_remote_node_context_construct_buffer( - struct scic_sds_remote_node_context *sci_rnc) +static union scu_remote_node_context *sci_rnc_by_id(struct isci_host *ihost, u16 id) +{ + if (id < ihost->remote_node_entries && + ihost->device_table[id]) + return &ihost->remote_node_context_table[id]; + + return NULL; +} + +static void sci_remote_node_context_construct_buffer(struct sci_remote_node_context *sci_rnc) { struct isci_remote_device *idev = rnc_to_dev(sci_rnc); struct domain_device *dev = idev->domain_dev; @@ -110,11 +111,11 @@ static void scic_sds_remote_node_context_construct_buffer( struct isci_host *ihost; __le64 sas_addr; - ihost = scic_sds_remote_device_get_controller(idev); - rnc = scic_sds_controller_get_remote_node_context_buffer(ihost, rni); + ihost = sci_remote_device_get_controller(idev); + rnc = sci_rnc_by_id(ihost, rni); memset(rnc, 0, sizeof(union scu_remote_node_context) - * scic_sds_remote_device_node_count(idev)); + * sci_remote_device_node_count(idev)); rnc->ssp.remote_node_index = rni; rnc->ssp.remote_node_port_width = idev->device_port_width; @@ -135,14 +136,14 @@ static void scic_sds_remote_node_context_construct_buffer( if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) { rnc->ssp.connection_occupancy_timeout = - ihost->user_parameters.sds1.stp_max_occupancy_timeout; + ihost->user_parameters.stp_max_occupancy_timeout; rnc->ssp.connection_inactivity_timeout = - ihost->user_parameters.sds1.stp_inactivity_timeout; + ihost->user_parameters.stp_inactivity_timeout; } else { rnc->ssp.connection_occupancy_timeout = - ihost->user_parameters.sds1.ssp_max_occupancy_timeout; + ihost->user_parameters.ssp_max_occupancy_timeout; rnc->ssp.connection_inactivity_timeout = - ihost->user_parameters.sds1.ssp_inactivity_timeout; + ihost->user_parameters.ssp_inactivity_timeout; } rnc->ssp.initial_arbitration_wait_time = 0; @@ -164,8 +165,8 @@ static void scic_sds_remote_node_context_construct_buffer( * to its ready state. If the remote node context is already setup to * transition to its final state then this function does nothing. none */ -static void scic_sds_remote_node_context_setup_to_resume( - struct scic_sds_remote_node_context *sci_rnc, +static void sci_remote_node_context_setup_to_resume( + struct sci_remote_node_context *sci_rnc, scics_sds_remote_node_context_callback callback, void *callback_parameter) { @@ -176,8 +177,8 @@ static void scic_sds_remote_node_context_setup_to_resume( } } -static void scic_sds_remote_node_context_setup_to_destory( - struct scic_sds_remote_node_context *sci_rnc, +static void sci_remote_node_context_setup_to_destory( + struct sci_remote_node_context *sci_rnc, scics_sds_remote_node_context_callback callback, void *callback_parameter) { @@ -192,8 +193,8 @@ static void scic_sds_remote_node_context_setup_to_destory( * This method just calls the user callback function and then resets the * callback. */ -static void scic_sds_remote_node_context_notify_user( - struct scic_sds_remote_node_context *rnc) +static void sci_remote_node_context_notify_user( + struct sci_remote_node_context *rnc) { if (rnc->user_callback != NULL) { (*rnc->user_callback)(rnc->user_cookie); @@ -203,99 +204,80 @@ static void scic_sds_remote_node_context_notify_user( } } -static void scic_sds_remote_node_context_continue_state_transitions(struct scic_sds_remote_node_context *rnc) +static void sci_remote_node_context_continue_state_transitions(struct sci_remote_node_context *rnc) { if (rnc->destination_state == SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY) - scic_sds_remote_node_context_resume(rnc, rnc->user_callback, + sci_remote_node_context_resume(rnc, rnc->user_callback, rnc->user_cookie); } -/** - * - * @sci_rnc: The remote node context object that is to be validated. - * - * This method will mark the rnc buffer as being valid and post the request to - * the hardware. none - */ -static void scic_sds_remote_node_context_validate_context_buffer( - struct scic_sds_remote_node_context *sci_rnc) +static void sci_remote_node_context_validate_context_buffer(struct sci_remote_node_context *sci_rnc) { + union scu_remote_node_context *rnc_buffer; struct isci_remote_device *idev = rnc_to_dev(sci_rnc); struct domain_device *dev = idev->domain_dev; - union scu_remote_node_context *rnc_buffer; + struct isci_host *ihost = idev->owning_port->owning_controller; - rnc_buffer = scic_sds_controller_get_remote_node_context_buffer( - scic_sds_remote_device_get_controller(idev), - sci_rnc->remote_node_index - ); + rnc_buffer = sci_rnc_by_id(ihost, sci_rnc->remote_node_index); rnc_buffer->ssp.is_valid = true; if (!idev->is_direct_attached && (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP))) { - scic_sds_remote_device_post_request(idev, - SCU_CONTEXT_COMMAND_POST_RNC_96); + sci_remote_device_post_request(idev, SCU_CONTEXT_COMMAND_POST_RNC_96); } else { - scic_sds_remote_device_post_request(idev, SCU_CONTEXT_COMMAND_POST_RNC_32); + sci_remote_device_post_request(idev, SCU_CONTEXT_COMMAND_POST_RNC_32); - if (idev->is_direct_attached) { - scic_sds_port_setup_transports(idev->owning_port, - sci_rnc->remote_node_index); - } + if (idev->is_direct_attached) + sci_port_setup_transports(idev->owning_port, + sci_rnc->remote_node_index); } } -/** - * - * @sci_rnc: The remote node context object that is to be invalidated. - * - * This method will update the RNC buffer and post the invalidate request. none - */ -static void scic_sds_remote_node_context_invalidate_context_buffer( - struct scic_sds_remote_node_context *sci_rnc) +static void sci_remote_node_context_invalidate_context_buffer(struct sci_remote_node_context *sci_rnc) { union scu_remote_node_context *rnc_buffer; + struct isci_remote_device *idev = rnc_to_dev(sci_rnc); + struct isci_host *ihost = idev->owning_port->owning_controller; - rnc_buffer = scic_sds_controller_get_remote_node_context_buffer( - scic_sds_remote_device_get_controller(rnc_to_dev(sci_rnc)), - sci_rnc->remote_node_index); + rnc_buffer = sci_rnc_by_id(ihost, sci_rnc->remote_node_index); rnc_buffer->ssp.is_valid = false; - scic_sds_remote_device_post_request(rnc_to_dev(sci_rnc), - SCU_CONTEXT_COMMAND_POST_RNC_INVALIDATE); + sci_remote_device_post_request(rnc_to_dev(sci_rnc), + SCU_CONTEXT_COMMAND_POST_RNC_INVALIDATE); } -static void scic_sds_remote_node_context_initial_state_enter(struct sci_base_state_machine *sm) +static void sci_remote_node_context_initial_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); + struct sci_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); /* Check to see if we have gotten back to the initial state because * someone requested to destroy the remote node context object. */ if (sm->previous_state_id == SCI_RNC_INVALIDATING) { rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; - scic_sds_remote_node_context_notify_user(rnc); + sci_remote_node_context_notify_user(rnc); } } -static void scic_sds_remote_node_context_posting_state_enter(struct sci_base_state_machine *sm) +static void sci_remote_node_context_posting_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *sci_rnc = container_of(sm, typeof(*sci_rnc), sm); + struct sci_remote_node_context *sci_rnc = container_of(sm, typeof(*sci_rnc), sm); - scic_sds_remote_node_context_validate_context_buffer(sci_rnc); + sci_remote_node_context_validate_context_buffer(sci_rnc); } -static void scic_sds_remote_node_context_invalidating_state_enter(struct sci_base_state_machine *sm) +static void sci_remote_node_context_invalidating_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); + struct sci_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); - scic_sds_remote_node_context_invalidate_context_buffer(rnc); + sci_remote_node_context_invalidate_context_buffer(rnc); } -static void scic_sds_remote_node_context_resuming_state_enter(struct sci_base_state_machine *sm) +static void sci_remote_node_context_resuming_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); + struct sci_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); struct isci_remote_device *idev; struct domain_device *dev; @@ -310,73 +292,73 @@ static void scic_sds_remote_node_context_resuming_state_enter(struct sci_base_st */ if ((dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) && idev->is_direct_attached) - scic_sds_port_setup_transports(idev->owning_port, + sci_port_setup_transports(idev->owning_port, rnc->remote_node_index); - scic_sds_remote_device_post_request(idev, SCU_CONTEXT_COMMAND_POST_RNC_RESUME); + sci_remote_device_post_request(idev, SCU_CONTEXT_COMMAND_POST_RNC_RESUME); } -static void scic_sds_remote_node_context_ready_state_enter(struct sci_base_state_machine *sm) +static void sci_remote_node_context_ready_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); + struct sci_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; if (rnc->user_callback) - scic_sds_remote_node_context_notify_user(rnc); + sci_remote_node_context_notify_user(rnc); } -static void scic_sds_remote_node_context_tx_suspended_state_enter(struct sci_base_state_machine *sm) +static void sci_remote_node_context_tx_suspended_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); + struct sci_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); - scic_sds_remote_node_context_continue_state_transitions(rnc); + sci_remote_node_context_continue_state_transitions(rnc); } -static void scic_sds_remote_node_context_tx_rx_suspended_state_enter(struct sci_base_state_machine *sm) +static void sci_remote_node_context_tx_rx_suspended_state_enter(struct sci_base_state_machine *sm) { - struct scic_sds_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); + struct sci_remote_node_context *rnc = container_of(sm, typeof(*rnc), sm); - scic_sds_remote_node_context_continue_state_transitions(rnc); + sci_remote_node_context_continue_state_transitions(rnc); } -static const struct sci_base_state scic_sds_remote_node_context_state_table[] = { +static const struct sci_base_state sci_remote_node_context_state_table[] = { [SCI_RNC_INITIAL] = { - .enter_state = scic_sds_remote_node_context_initial_state_enter, + .enter_state = sci_remote_node_context_initial_state_enter, }, [SCI_RNC_POSTING] = { - .enter_state = scic_sds_remote_node_context_posting_state_enter, + .enter_state = sci_remote_node_context_posting_state_enter, }, [SCI_RNC_INVALIDATING] = { - .enter_state = scic_sds_remote_node_context_invalidating_state_enter, + .enter_state = sci_remote_node_context_invalidating_state_enter, }, [SCI_RNC_RESUMING] = { - .enter_state = scic_sds_remote_node_context_resuming_state_enter, + .enter_state = sci_remote_node_context_resuming_state_enter, }, [SCI_RNC_READY] = { - .enter_state = scic_sds_remote_node_context_ready_state_enter, + .enter_state = sci_remote_node_context_ready_state_enter, }, [SCI_RNC_TX_SUSPENDED] = { - .enter_state = scic_sds_remote_node_context_tx_suspended_state_enter, + .enter_state = sci_remote_node_context_tx_suspended_state_enter, }, [SCI_RNC_TX_RX_SUSPENDED] = { - .enter_state = scic_sds_remote_node_context_tx_rx_suspended_state_enter, + .enter_state = sci_remote_node_context_tx_rx_suspended_state_enter, }, [SCI_RNC_AWAIT_SUSPENSION] = { }, }; -void scic_sds_remote_node_context_construct(struct scic_sds_remote_node_context *rnc, +void sci_remote_node_context_construct(struct sci_remote_node_context *rnc, u16 remote_node_index) { - memset(rnc, 0, sizeof(struct scic_sds_remote_node_context)); + memset(rnc, 0, sizeof(struct sci_remote_node_context)); rnc->remote_node_index = remote_node_index; rnc->destination_state = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; - sci_init_sm(&rnc->sm, scic_sds_remote_node_context_state_table, SCI_RNC_INITIAL); + sci_init_sm(&rnc->sm, sci_remote_node_context_state_table, SCI_RNC_INITIAL); } -enum sci_status scic_sds_remote_node_context_event_handler(struct scic_sds_remote_node_context *sci_rnc, +enum sci_status sci_remote_node_context_event_handler(struct sci_remote_node_context *sci_rnc, u32 event_code) { enum scis_sds_remote_node_context_states state; @@ -476,7 +458,7 @@ enum sci_status scic_sds_remote_node_context_event_handler(struct scic_sds_remot } -enum sci_status scic_sds_remote_node_context_destruct(struct scic_sds_remote_node_context *sci_rnc, +enum sci_status sci_remote_node_context_destruct(struct sci_remote_node_context *sci_rnc, scics_sds_remote_node_context_callback cb_fn, void *cb_p) { @@ -485,7 +467,7 @@ enum sci_status scic_sds_remote_node_context_destruct(struct scic_sds_remote_nod state = sci_rnc->sm.current_state_id; switch (state) { case SCI_RNC_INVALIDATING: - scic_sds_remote_node_context_setup_to_destory(sci_rnc, cb_fn, cb_p); + sci_remote_node_context_setup_to_destory(sci_rnc, cb_fn, cb_p); return SCI_SUCCESS; case SCI_RNC_POSTING: case SCI_RNC_RESUMING: @@ -493,7 +475,7 @@ enum sci_status scic_sds_remote_node_context_destruct(struct scic_sds_remote_nod case SCI_RNC_TX_SUSPENDED: case SCI_RNC_TX_RX_SUSPENDED: case SCI_RNC_AWAIT_SUSPENSION: - scic_sds_remote_node_context_setup_to_destory(sci_rnc, cb_fn, cb_p); + sci_remote_node_context_setup_to_destory(sci_rnc, cb_fn, cb_p); sci_change_state(&sci_rnc->sm, SCI_RNC_INVALIDATING); return SCI_SUCCESS; case SCI_RNC_INITIAL: @@ -511,7 +493,7 @@ enum sci_status scic_sds_remote_node_context_destruct(struct scic_sds_remote_nod } } -enum sci_status scic_sds_remote_node_context_suspend(struct scic_sds_remote_node_context *sci_rnc, +enum sci_status sci_remote_node_context_suspend(struct sci_remote_node_context *sci_rnc, u32 suspend_type, scics_sds_remote_node_context_callback cb_fn, void *cb_p) @@ -530,7 +512,7 @@ enum sci_status scic_sds_remote_node_context_suspend(struct scic_sds_remote_node sci_rnc->suspension_code = suspend_type; if (suspend_type == SCI_SOFTWARE_SUSPENSION) { - scic_sds_remote_device_post_request(rnc_to_dev(sci_rnc), + sci_remote_device_post_request(rnc_to_dev(sci_rnc), SCU_CONTEXT_COMMAND_POST_RNC_SUSPEND_TX); } @@ -538,7 +520,7 @@ enum sci_status scic_sds_remote_node_context_suspend(struct scic_sds_remote_node return SCI_SUCCESS; } -enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_context *sci_rnc, +enum sci_status sci_remote_node_context_resume(struct sci_remote_node_context *sci_rnc, scics_sds_remote_node_context_callback cb_fn, void *cb_p) { @@ -550,8 +532,8 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_ if (sci_rnc->remote_node_index == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) return SCI_FAILURE_INVALID_STATE; - scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); - scic_sds_remote_node_context_construct_buffer(sci_rnc); + sci_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); + sci_remote_node_context_construct_buffer(sci_rnc); sci_change_state(&sci_rnc->sm, SCI_RNC_POSTING); return SCI_SUCCESS; case SCI_RNC_POSTING: @@ -567,7 +549,7 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_ struct isci_remote_device *idev = rnc_to_dev(sci_rnc); struct domain_device *dev = idev->domain_dev; - scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); + sci_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); /* TODO: consider adding a resume action of NONE, INVALIDATE, WRITE_TLCR */ if (dev->dev_type == SAS_END_DEV || dev_is_expander(dev)) @@ -584,11 +566,11 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_ return SCI_SUCCESS; } case SCI_RNC_TX_RX_SUSPENDED: - scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); + sci_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); sci_change_state(&sci_rnc->sm, SCI_RNC_RESUMING); return SCI_FAILURE_INVALID_STATE; case SCI_RNC_AWAIT_SUSPENSION: - scic_sds_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); + sci_remote_node_context_setup_to_resume(sci_rnc, cb_fn, cb_p); return SCI_SUCCESS; default: dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), @@ -597,7 +579,7 @@ enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_ } } -enum sci_status scic_sds_remote_node_context_start_io(struct scic_sds_remote_node_context *sci_rnc, +enum sci_status sci_remote_node_context_start_io(struct sci_remote_node_context *sci_rnc, struct isci_request *ireq) { enum scis_sds_remote_node_context_states state; @@ -622,7 +604,7 @@ enum sci_status scic_sds_remote_node_context_start_io(struct scic_sds_remote_nod return SCI_FAILURE_INVALID_STATE; } -enum sci_status scic_sds_remote_node_context_start_task(struct scic_sds_remote_node_context *sci_rnc, +enum sci_status sci_remote_node_context_start_task(struct sci_remote_node_context *sci_rnc, struct isci_request *ireq) { enum scis_sds_remote_node_context_states state; @@ -635,7 +617,7 @@ enum sci_status scic_sds_remote_node_context_start_task(struct scic_sds_remote_n return SCI_SUCCESS; case SCI_RNC_TX_SUSPENDED: case SCI_RNC_TX_RX_SUSPENDED: - scic_sds_remote_node_context_resume(sci_rnc, NULL, NULL); + sci_remote_node_context_resume(sci_rnc, NULL, NULL); return SCI_SUCCESS; default: dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), diff --git a/drivers/scsi/isci/remote_node_context.h b/drivers/scsi/isci/remote_node_context.h index 7a24c7a12de..b475c5c2664 100644 --- a/drivers/scsi/isci/remote_node_context.h +++ b/drivers/scsi/isci/remote_node_context.h @@ -80,7 +80,7 @@ struct isci_request; struct isci_remote_device; -struct scic_sds_remote_node_context; +struct sci_remote_node_context; typedef void (*scics_sds_remote_node_context_callback)(void *); @@ -147,19 +147,19 @@ enum scis_sds_remote_node_context_states { * This enumeration is used to define the end destination state for the remote * node context. */ -enum scic_sds_remote_node_context_destination_state { +enum sci_remote_node_context_destination_state { SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED, SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY, SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_FINAL }; /** - * struct scic_sds_remote_node_context - This structure contains the data + * struct sci_remote_node_context - This structure contains the data * associated with the remote node context object. The remote node context * (RNC) object models the the remote device information necessary to manage * the silicon RNC. */ -struct scic_sds_remote_node_context { +struct sci_remote_node_context { /** * This field indicates the remote node index (RNI) associated with * this RNC. @@ -177,7 +177,7 @@ struct scic_sds_remote_node_context { * state. This can cause an automatic resume on receiving a suspension * notification. */ - enum scic_sds_remote_node_context_destination_state destination_state; + enum sci_remote_node_context_destination_state destination_state; /** * This field contains the callback function that the user requested to be @@ -197,31 +197,31 @@ struct scic_sds_remote_node_context { struct sci_base_state_machine sm; }; -void scic_sds_remote_node_context_construct(struct scic_sds_remote_node_context *rnc, +void sci_remote_node_context_construct(struct sci_remote_node_context *rnc, u16 remote_node_index); -bool scic_sds_remote_node_context_is_ready( - struct scic_sds_remote_node_context *sci_rnc); +bool sci_remote_node_context_is_ready( + struct sci_remote_node_context *sci_rnc); -#define scic_sds_remote_node_context_get_remote_node_index(rcn) \ +#define sci_remote_node_context_get_remote_node_index(rcn) \ ((rnc)->remote_node_index) -enum sci_status scic_sds_remote_node_context_event_handler(struct scic_sds_remote_node_context *sci_rnc, +enum sci_status sci_remote_node_context_event_handler(struct sci_remote_node_context *sci_rnc, u32 event_code); -enum sci_status scic_sds_remote_node_context_destruct(struct scic_sds_remote_node_context *sci_rnc, +enum sci_status sci_remote_node_context_destruct(struct sci_remote_node_context *sci_rnc, scics_sds_remote_node_context_callback callback, void *callback_parameter); -enum sci_status scic_sds_remote_node_context_suspend(struct scic_sds_remote_node_context *sci_rnc, +enum sci_status sci_remote_node_context_suspend(struct sci_remote_node_context *sci_rnc, u32 suspend_type, scics_sds_remote_node_context_callback cb_fn, void *cb_p); -enum sci_status scic_sds_remote_node_context_resume(struct scic_sds_remote_node_context *sci_rnc, +enum sci_status sci_remote_node_context_resume(struct sci_remote_node_context *sci_rnc, scics_sds_remote_node_context_callback cb_fn, void *cb_p); -enum sci_status scic_sds_remote_node_context_start_task(struct scic_sds_remote_node_context *sci_rnc, +enum sci_status sci_remote_node_context_start_task(struct sci_remote_node_context *sci_rnc, struct isci_request *ireq); -enum sci_status scic_sds_remote_node_context_start_io(struct scic_sds_remote_node_context *sci_rnc, +enum sci_status sci_remote_node_context_start_io(struct sci_remote_node_context *sci_rnc, struct isci_request *ireq); #endif /* _SCIC_SDS_REMOTE_NODE_CONTEXT_H_ */ diff --git a/drivers/scsi/isci/remote_node_table.c b/drivers/scsi/isci/remote_node_table.c index 6b9465a5a21..301b3141945 100644 --- a/drivers/scsi/isci/remote_node_table.c +++ b/drivers/scsi/isci/remote_node_table.c @@ -74,8 +74,8 @@ * just bit position. u32 This is the absolute bit position for an available * group. */ -static u32 scic_sds_remote_node_table_get_group_index( - struct scic_remote_node_table *remote_node_table, +static u32 sci_remote_node_table_get_group_index( + struct sci_remote_node_table *remote_node_table, u32 group_table_index) { u32 dword_index; @@ -108,8 +108,8 @@ static u32 scic_sds_remote_node_table_get_group_index( * This method will clear the group index entry in the specified group index * table. none */ -static void scic_sds_remote_node_table_clear_group_index( - struct scic_remote_node_table *remote_node_table, +static void sci_remote_node_table_clear_group_index( + struct sci_remote_node_table *remote_node_table, u32 group_table_index, u32 group_index) { @@ -138,8 +138,8 @@ static void scic_sds_remote_node_table_clear_group_index( * This method will set the group index bit entry in the specified gropu index * table. none */ -static void scic_sds_remote_node_table_set_group_index( - struct scic_remote_node_table *remote_node_table, +static void sci_remote_node_table_set_group_index( + struct sci_remote_node_table *remote_node_table, u32 group_table_index, u32 group_index) { @@ -167,8 +167,8 @@ static void scic_sds_remote_node_table_set_group_index( * This method will set the remote to available in the remote node allocation * table. none */ -static void scic_sds_remote_node_table_set_node_index( - struct scic_remote_node_table *remote_node_table, +static void sci_remote_node_table_set_node_index( + struct sci_remote_node_table *remote_node_table, u32 remote_node_index) { u32 dword_location; @@ -200,8 +200,8 @@ static void scic_sds_remote_node_table_set_node_index( * This method clears the remote node index from the table of available remote * nodes. none */ -static void scic_sds_remote_node_table_clear_node_index( - struct scic_remote_node_table *remote_node_table, +static void sci_remote_node_table_clear_node_index( + struct sci_remote_node_table *remote_node_table, u32 remote_node_index) { u32 dword_location; @@ -231,8 +231,8 @@ static void scic_sds_remote_node_table_clear_node_index( * * This method clears the entire table slot at the specified slot index. none */ -static void scic_sds_remote_node_table_clear_group( - struct scic_remote_node_table *remote_node_table, +static void sci_remote_node_table_clear_group( + struct sci_remote_node_table *remote_node_table, u32 group_index) { u32 dword_location; @@ -258,8 +258,8 @@ static void scic_sds_remote_node_table_clear_group( * * THis method sets an entire remote node group in the remote node table. */ -static void scic_sds_remote_node_table_set_group( - struct scic_remote_node_table *remote_node_table, +static void sci_remote_node_table_set_group( + struct sci_remote_node_table *remote_node_table, u32 group_index) { u32 dword_location; @@ -288,8 +288,8 @@ static void scic_sds_remote_node_table_set_group( * This method will return the group value for the specified group index. The * bit values at the specified remote node group index. */ -static u8 scic_sds_remote_node_table_get_group_value( - struct scic_remote_node_table *remote_node_table, +static u8 sci_remote_node_table_get_group_value( + struct sci_remote_node_table *remote_node_table, u32 group_index) { u32 dword_location; @@ -313,8 +313,8 @@ static u8 scic_sds_remote_node_table_get_group_value( * * This method will initialize the remote node table for use. none */ -void scic_sds_remote_node_table_initialize( - struct scic_remote_node_table *remote_node_table, +void sci_remote_node_table_initialize( + struct sci_remote_node_table *remote_node_table, u32 remote_node_entries) { u32 index; @@ -342,7 +342,7 @@ void scic_sds_remote_node_table_initialize( /* Initialize each full DWORD to a FULL SET of remote nodes */ for (index = 0; index < remote_node_entries; index++) { - scic_sds_remote_node_table_set_node_index(remote_node_table, index); + sci_remote_node_table_set_node_index(remote_node_table, index); } remote_node_table->group_array_size = (u16) @@ -353,14 +353,14 @@ void scic_sds_remote_node_table_initialize( /* * These are all guaranteed to be full slot values so fill them in the * available sets of 3 remote nodes */ - scic_sds_remote_node_table_set_group_index(remote_node_table, 2, index); + sci_remote_node_table_set_group_index(remote_node_table, 2, index); } /* Now fill in any remainders that we may find */ if ((remote_node_entries % SCU_STP_REMOTE_NODE_COUNT) == 2) { - scic_sds_remote_node_table_set_group_index(remote_node_table, 1, index); + sci_remote_node_table_set_group_index(remote_node_table, 1, index); } else if ((remote_node_entries % SCU_STP_REMOTE_NODE_COUNT) == 1) { - scic_sds_remote_node_table_set_group_index(remote_node_table, 0, index); + sci_remote_node_table_set_group_index(remote_node_table, 0, index); } } @@ -379,8 +379,8 @@ void scic_sds_remote_node_table_initialize( * updated. The RNi value or an invalid remote node context if an RNi can not * be found. */ -static u16 scic_sds_remote_node_table_allocate_single_remote_node( - struct scic_remote_node_table *remote_node_table, +static u16 sci_remote_node_table_allocate_single_remote_node( + struct sci_remote_node_table *remote_node_table, u32 group_table_index) { u8 index; @@ -388,12 +388,12 @@ static u16 scic_sds_remote_node_table_allocate_single_remote_node( u32 group_index; u16 remote_node_index = SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX; - group_index = scic_sds_remote_node_table_get_group_index( + group_index = sci_remote_node_table_get_group_index( remote_node_table, group_table_index); /* We could not find an available slot in the table selector 0 */ if (group_index != SCIC_SDS_REMOTE_NODE_TABLE_INVALID_INDEX) { - group_value = scic_sds_remote_node_table_get_group_value( + group_value = sci_remote_node_table_get_group_value( remote_node_table, group_index); for (index = 0; index < SCU_STP_REMOTE_NODE_COUNT; index++) { @@ -402,16 +402,16 @@ static u16 scic_sds_remote_node_table_allocate_single_remote_node( remote_node_index = (u16)(group_index * SCU_STP_REMOTE_NODE_COUNT + index); - scic_sds_remote_node_table_clear_group_index( + sci_remote_node_table_clear_group_index( remote_node_table, group_table_index, group_index ); - scic_sds_remote_node_table_clear_node_index( + sci_remote_node_table_clear_node_index( remote_node_table, remote_node_index ); if (group_table_index > 0) { - scic_sds_remote_node_table_set_group_index( + sci_remote_node_table_set_group_index( remote_node_table, group_table_index - 1, group_index ); } @@ -436,24 +436,24 @@ static u16 scic_sds_remote_node_table_allocate_single_remote_node( * The remote node index that represents three consecutive remote node entries * or an invalid remote node context if none can be found. */ -static u16 scic_sds_remote_node_table_allocate_triple_remote_node( - struct scic_remote_node_table *remote_node_table, +static u16 sci_remote_node_table_allocate_triple_remote_node( + struct sci_remote_node_table *remote_node_table, u32 group_table_index) { u32 group_index; u16 remote_node_index = SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX; - group_index = scic_sds_remote_node_table_get_group_index( + group_index = sci_remote_node_table_get_group_index( remote_node_table, group_table_index); if (group_index != SCIC_SDS_REMOTE_NODE_TABLE_INVALID_INDEX) { remote_node_index = (u16)group_index * SCU_STP_REMOTE_NODE_COUNT; - scic_sds_remote_node_table_clear_group_index( + sci_remote_node_table_clear_group_index( remote_node_table, group_table_index, group_index ); - scic_sds_remote_node_table_clear_group( + sci_remote_node_table_clear_group( remote_node_table, group_index ); } @@ -473,31 +473,31 @@ static u16 scic_sds_remote_node_table_allocate_triple_remote_node( * SCU_SSP_REMOTE_NODE_COUNT(1) or SCU_STP_REMOTE_NODE_COUNT(3). u16 This is * the remote node index that is returned or an invalid remote node context. */ -u16 scic_sds_remote_node_table_allocate_remote_node( - struct scic_remote_node_table *remote_node_table, +u16 sci_remote_node_table_allocate_remote_node( + struct sci_remote_node_table *remote_node_table, u32 remote_node_count) { u16 remote_node_index = SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX; if (remote_node_count == SCU_SSP_REMOTE_NODE_COUNT) { remote_node_index = - scic_sds_remote_node_table_allocate_single_remote_node( + sci_remote_node_table_allocate_single_remote_node( remote_node_table, 0); if (remote_node_index == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) { remote_node_index = - scic_sds_remote_node_table_allocate_single_remote_node( + sci_remote_node_table_allocate_single_remote_node( remote_node_table, 1); } if (remote_node_index == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) { remote_node_index = - scic_sds_remote_node_table_allocate_single_remote_node( + sci_remote_node_table_allocate_single_remote_node( remote_node_table, 2); } } else if (remote_node_count == SCU_STP_REMOTE_NODE_COUNT) { remote_node_index = - scic_sds_remote_node_table_allocate_triple_remote_node( + sci_remote_node_table_allocate_triple_remote_node( remote_node_table, 2); } @@ -511,8 +511,8 @@ u16 scic_sds_remote_node_table_allocate_remote_node( * This method will free a single remote node index back to the remote node * table. This routine will update the remote node groups */ -static void scic_sds_remote_node_table_release_single_remote_node( - struct scic_remote_node_table *remote_node_table, +static void sci_remote_node_table_release_single_remote_node( + struct sci_remote_node_table *remote_node_table, u16 remote_node_index) { u32 group_index; @@ -520,7 +520,7 @@ static void scic_sds_remote_node_table_release_single_remote_node( group_index = remote_node_index / SCU_STP_REMOTE_NODE_COUNT; - group_value = scic_sds_remote_node_table_get_group_value(remote_node_table, group_index); + group_value = sci_remote_node_table_get_group_value(remote_node_table, group_index); /* * Assert that we are not trying to add an entry to a slot that is already @@ -531,22 +531,22 @@ static void scic_sds_remote_node_table_release_single_remote_node( /* * There are no entries in this slot so it must be added to the single * slot table. */ - scic_sds_remote_node_table_set_group_index(remote_node_table, 0, group_index); + sci_remote_node_table_set_group_index(remote_node_table, 0, group_index); } else if ((group_value & (group_value - 1)) == 0) { /* * There is only one entry in this slot so it must be moved from the * single slot table to the dual slot table */ - scic_sds_remote_node_table_clear_group_index(remote_node_table, 0, group_index); - scic_sds_remote_node_table_set_group_index(remote_node_table, 1, group_index); + sci_remote_node_table_clear_group_index(remote_node_table, 0, group_index); + sci_remote_node_table_set_group_index(remote_node_table, 1, group_index); } else { /* * There are two entries in the slot so it must be moved from the dual * slot table to the tripple slot table. */ - scic_sds_remote_node_table_clear_group_index(remote_node_table, 1, group_index); - scic_sds_remote_node_table_set_group_index(remote_node_table, 2, group_index); + sci_remote_node_table_clear_group_index(remote_node_table, 1, group_index); + sci_remote_node_table_set_group_index(remote_node_table, 2, group_index); } - scic_sds_remote_node_table_set_node_index(remote_node_table, remote_node_index); + sci_remote_node_table_set_node_index(remote_node_table, remote_node_index); } /** @@ -557,19 +557,19 @@ static void scic_sds_remote_node_table_release_single_remote_node( * This method will release a group of three consecutive remote nodes back to * the free remote nodes. */ -static void scic_sds_remote_node_table_release_triple_remote_node( - struct scic_remote_node_table *remote_node_table, +static void sci_remote_node_table_release_triple_remote_node( + struct sci_remote_node_table *remote_node_table, u16 remote_node_index) { u32 group_index; group_index = remote_node_index / SCU_STP_REMOTE_NODE_COUNT; - scic_sds_remote_node_table_set_group_index( + sci_remote_node_table_set_group_index( remote_node_table, 2, group_index ); - scic_sds_remote_node_table_set_group(remote_node_table, group_index); + sci_remote_node_table_set_group(remote_node_table, group_index); } /** @@ -582,16 +582,16 @@ static void scic_sds_remote_node_table_release_triple_remote_node( * This method will release the remote node index back into the remote node * table free pool. */ -void scic_sds_remote_node_table_release_remote_node_index( - struct scic_remote_node_table *remote_node_table, +void sci_remote_node_table_release_remote_node_index( + struct sci_remote_node_table *remote_node_table, u32 remote_node_count, u16 remote_node_index) { if (remote_node_count == SCU_SSP_REMOTE_NODE_COUNT) { - scic_sds_remote_node_table_release_single_remote_node( + sci_remote_node_table_release_single_remote_node( remote_node_table, remote_node_index); } else if (remote_node_count == SCU_STP_REMOTE_NODE_COUNT) { - scic_sds_remote_node_table_release_triple_remote_node( + sci_remote_node_table_release_triple_remote_node( remote_node_table, remote_node_index); } } diff --git a/drivers/scsi/isci/remote_node_table.h b/drivers/scsi/isci/remote_node_table.h index 5737d9a30cc..721ab982d2a 100644 --- a/drivers/scsi/isci/remote_node_table.h +++ b/drivers/scsi/isci/remote_node_table.h @@ -130,11 +130,11 @@ #define SCU_SATA_REMOTE_NODE_COUNT 1 /** - * struct scic_remote_node_table - + * struct sci_remote_node_table - * * */ -struct scic_remote_node_table { +struct sci_remote_node_table { /** * This field contains the array size in dwords */ @@ -172,16 +172,16 @@ struct scic_remote_node_table { /* --------------------------------------------------------------------------- */ -void scic_sds_remote_node_table_initialize( - struct scic_remote_node_table *remote_node_table, +void sci_remote_node_table_initialize( + struct sci_remote_node_table *remote_node_table, u32 remote_node_entries); -u16 scic_sds_remote_node_table_allocate_remote_node( - struct scic_remote_node_table *remote_node_table, +u16 sci_remote_node_table_allocate_remote_node( + struct sci_remote_node_table *remote_node_table, u32 remote_node_count); -void scic_sds_remote_node_table_release_remote_node_index( - struct scic_remote_node_table *remote_node_table, +void sci_remote_node_table_release_remote_node_index( + struct sci_remote_node_table *remote_node_table, u32 remote_node_count, u16 remote_node_index); diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index 36e674896bc..bcb3c08c19a 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -89,7 +89,7 @@ static dma_addr_t to_sgl_element_pair_dma(struct isci_host *ihost, return ihost->task_context_dma + offset; } - return scic_io_request_get_dma_addr(ireq, &ireq->sg_table[idx - 2]); + return sci_io_request_get_dma_addr(ireq, &ireq->sg_table[idx - 2]); } static void init_sgl_element(struct scu_sgl_element *e, struct scatterlist *sg) @@ -100,7 +100,7 @@ static void init_sgl_element(struct scu_sgl_element *e, struct scatterlist *sg) e->address_modifier = 0; } -static void scic_sds_request_build_sgl(struct isci_request *ireq) +static void sci_request_build_sgl(struct isci_request *ireq) { struct isci_host *ihost = ireq->isci_host; struct sas_task *task = isci_request_access_task(ireq); @@ -158,7 +158,7 @@ static void scic_sds_request_build_sgl(struct isci_request *ireq) } } -static void scic_sds_io_request_build_ssp_command_iu(struct isci_request *ireq) +static void sci_io_request_build_ssp_command_iu(struct isci_request *ireq) { struct ssp_cmd_iu *cmd_iu; struct sas_task *task = isci_request_access_task(ireq); @@ -178,7 +178,7 @@ static void scic_sds_io_request_build_ssp_command_iu(struct isci_request *ireq) sizeof(task->ssp_task.cdb) / sizeof(u32)); } -static void scic_sds_task_request_build_ssp_task_iu(struct isci_request *ireq) +static void sci_task_request_build_ssp_task_iu(struct isci_request *ireq) { struct ssp_task_iu *task_iu; struct sas_task *task = isci_request_access_task(ireq); @@ -211,8 +211,8 @@ static void scu_ssp_reqeust_construct_task_context( struct isci_remote_device *idev; struct isci_port *iport; - idev = scic_sds_request_get_device(ireq); - iport = scic_sds_request_get_port(ireq); + idev = sci_request_get_device(ireq); + iport = sci_request_get_port(ireq); /* Fill in the TC with the its required data */ task_context->abort = 0; @@ -220,13 +220,13 @@ static void scu_ssp_reqeust_construct_task_context( task_context->initiator_request = 1; task_context->connection_rate = idev->connection_rate; task_context->protocol_engine_index = - scic_sds_controller_get_protocol_engine_group(controller); - task_context->logical_port_index = scic_sds_port_get_index(iport); + sci_controller_get_protocol_engine_group(controller); + task_context->logical_port_index = sci_port_get_index(iport); task_context->protocol_type = SCU_TASK_CONTEXT_PROTOCOL_SSP; task_context->valid = SCU_TASK_CONTEXT_VALID; task_context->context_type = SCU_TASK_CONTEXT_TYPE; - task_context->remote_node_index = scic_sds_remote_device_get_index(idev); + task_context->remote_node_index = sci_remote_device_get_index(idev); task_context->command_code = 0; task_context->link_layer_control = 0; @@ -242,9 +242,9 @@ static void scu_ssp_reqeust_construct_task_context( task_context->task_phase = 0x01; ireq->post_context = (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | - (scic_sds_controller_get_protocol_engine_group(controller) << + (sci_controller_get_protocol_engine_group(controller) << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | - (scic_sds_port_get_index(iport) << + (sci_port_get_index(iport) << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | ISCI_TAG_TCI(ireq->io_tag)); @@ -252,7 +252,7 @@ static void scu_ssp_reqeust_construct_task_context( * Copy the physical address for the command buffer to the * SCU Task Context */ - dma_addr = scic_io_request_get_dma_addr(ireq, &ireq->ssp.cmd); + dma_addr = sci_io_request_get_dma_addr(ireq, &ireq->ssp.cmd); task_context->command_iu_upper = upper_32_bits(dma_addr); task_context->command_iu_lower = lower_32_bits(dma_addr); @@ -261,7 +261,7 @@ static void scu_ssp_reqeust_construct_task_context( * Copy the physical address for the response buffer to the * SCU Task Context */ - dma_addr = scic_io_request_get_dma_addr(ireq, &ireq->ssp.rsp); + dma_addr = sci_io_request_get_dma_addr(ireq, &ireq->ssp.rsp); task_context->response_iu_upper = upper_32_bits(dma_addr); task_context->response_iu_lower = lower_32_bits(dma_addr); @@ -298,7 +298,7 @@ static void scu_ssp_io_request_construct_task_context(struct isci_request *ireq, task_context->transfer_length_bytes = len; if (task_context->transfer_length_bytes > 0) - scic_sds_request_build_sgl(ireq); + sci_request_build_sgl(ireq); } /** @@ -349,8 +349,8 @@ static void scu_sata_reqeust_construct_task_context( struct isci_remote_device *idev; struct isci_port *iport; - idev = scic_sds_request_get_device(ireq); - iport = scic_sds_request_get_port(ireq); + idev = sci_request_get_device(ireq); + iport = sci_request_get_port(ireq); /* Fill in the TC with the its required data */ task_context->abort = 0; @@ -358,14 +358,14 @@ static void scu_sata_reqeust_construct_task_context( task_context->initiator_request = 1; task_context->connection_rate = idev->connection_rate; task_context->protocol_engine_index = - scic_sds_controller_get_protocol_engine_group(controller); + sci_controller_get_protocol_engine_group(controller); task_context->logical_port_index = - scic_sds_port_get_index(iport); + sci_port_get_index(iport); task_context->protocol_type = SCU_TASK_CONTEXT_PROTOCOL_STP; task_context->valid = SCU_TASK_CONTEXT_VALID; task_context->context_type = SCU_TASK_CONTEXT_TYPE; - task_context->remote_node_index = scic_sds_remote_device_get_index(idev); + task_context->remote_node_index = sci_remote_device_get_index(idev); task_context->command_code = 0; task_context->link_layer_control = 0; @@ -385,9 +385,9 @@ static void scu_sata_reqeust_construct_task_context( task_context->type.words[0] = *(u32 *)&ireq->stp.cmd; ireq->post_context = (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | - (scic_sds_controller_get_protocol_engine_group(controller) << + (sci_controller_get_protocol_engine_group(controller) << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | - (scic_sds_port_get_index(iport) << + (sci_port_get_index(iport) << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | ISCI_TAG_TCI(ireq->io_tag)); /* @@ -395,7 +395,7 @@ static void scu_sata_reqeust_construct_task_context( * Context. We must offset the command buffer by 4 bytes because the * first 4 bytes are transfered in the body of the TC. */ - dma_addr = scic_io_request_get_dma_addr(ireq, + dma_addr = sci_io_request_get_dma_addr(ireq, ((char *) &ireq->stp.cmd) + sizeof(u32)); @@ -420,7 +420,7 @@ static void scu_stp_raw_request_construct_task_context(struct isci_request *ireq task_context->transfer_length_bytes = sizeof(struct host_to_dev_fis) - sizeof(u32); } -static enum sci_status scic_sds_stp_pio_request_construct(struct isci_request *ireq, +static enum sci_status sci_stp_pio_request_construct(struct isci_request *ireq, bool copy_rx_frame) { struct isci_stp_request *stp_req = &ireq->stp.req; @@ -432,7 +432,7 @@ static enum sci_status scic_sds_stp_pio_request_construct(struct isci_request *i stp_req->sgl.set = SCU_SGL_ELEMENT_PAIR_A; if (copy_rx_frame) { - scic_sds_request_build_sgl(ireq); + sci_request_build_sgl(ireq); stp_req->sgl.index = 0; } else { /* The user does not want the data copied to the SGL buffer location */ @@ -454,7 +454,7 @@ static enum sci_status scic_sds_stp_pio_request_construct(struct isci_request *i * requests that are optimized by the silicon (i.e. UDMA, NCQ). This method * returns an indication as to whether the construction was successful. */ -static void scic_sds_stp_optimized_request_construct(struct isci_request *ireq, +static void sci_stp_optimized_request_construct(struct isci_request *ireq, u8 optimized_task_type, u32 len, enum dma_data_direction dir) @@ -465,7 +465,7 @@ static void scic_sds_stp_optimized_request_construct(struct isci_request *ireq, scu_sata_reqeust_construct_task_context(ireq, task_context); /* Copy over the SGL elements */ - scic_sds_request_build_sgl(ireq); + sci_request_build_sgl(ireq); /* Copy over the number of bytes to be transfered */ task_context->transfer_length_bytes = len; @@ -490,7 +490,7 @@ static void scic_sds_stp_optimized_request_construct(struct isci_request *ireq, static enum sci_status -scic_io_request_construct_sata(struct isci_request *ireq, +sci_io_request_construct_sata(struct isci_request *ireq, u32 len, enum dma_data_direction dir, bool copy) @@ -533,7 +533,7 @@ scic_io_request_construct_sata(struct isci_request *ireq, /* NCQ */ if (task->ata_task.use_ncq) { - scic_sds_stp_optimized_request_construct(ireq, + sci_stp_optimized_request_construct(ireq, SCU_TASK_TYPE_FPDMAQ_READ, len, dir); return SCI_SUCCESS; @@ -541,17 +541,17 @@ scic_io_request_construct_sata(struct isci_request *ireq, /* DMA */ if (task->ata_task.dma_xfer) { - scic_sds_stp_optimized_request_construct(ireq, + sci_stp_optimized_request_construct(ireq, SCU_TASK_TYPE_DMA_IN, len, dir); return SCI_SUCCESS; } else /* PIO */ - return scic_sds_stp_pio_request_construct(ireq, copy); + return sci_stp_pio_request_construct(ireq, copy); return status; } -static enum sci_status scic_io_request_construct_basic_ssp(struct isci_request *ireq) +static enum sci_status sci_io_request_construct_basic_ssp(struct isci_request *ireq) { struct sas_task *task = isci_request_access_task(ireq); @@ -561,28 +561,28 @@ static enum sci_status scic_io_request_construct_basic_ssp(struct isci_request * task->data_dir, task->total_xfer_len); - scic_sds_io_request_build_ssp_command_iu(ireq); + sci_io_request_build_ssp_command_iu(ireq); sci_change_state(&ireq->sm, SCI_REQ_CONSTRUCTED); return SCI_SUCCESS; } -enum sci_status scic_task_request_construct_ssp( +enum sci_status sci_task_request_construct_ssp( struct isci_request *ireq) { /* Construct the SSP Task SCU Task Context */ scu_ssp_task_request_construct_task_context(ireq); /* Fill in the SSP Task IU */ - scic_sds_task_request_build_ssp_task_iu(ireq); + sci_task_request_build_ssp_task_iu(ireq); sci_change_state(&ireq->sm, SCI_REQ_CONSTRUCTED); return SCI_SUCCESS; } -static enum sci_status scic_io_request_construct_basic_sata(struct isci_request *ireq) +static enum sci_status sci_io_request_construct_basic_sata(struct isci_request *ireq) { enum sci_status status; bool copy = false; @@ -592,7 +592,7 @@ static enum sci_status scic_io_request_construct_basic_sata(struct isci_request copy = (task->data_dir == DMA_NONE) ? false : true; - status = scic_io_request_construct_sata(ireq, + status = sci_io_request_construct_sata(ireq, task->total_xfer_len, task->data_dir, copy); @@ -603,7 +603,7 @@ static enum sci_status scic_io_request_construct_basic_sata(struct isci_request return status; } -enum sci_status scic_task_request_construct_sata(struct isci_request *ireq) +enum sci_status sci_task_request_construct_sata(struct isci_request *ireq) { enum sci_status status = SCI_SUCCESS; @@ -648,7 +648,7 @@ static u32 sci_req_tx_bytes(struct isci_request *ireq) * BAR1 is the scu_registers * 0x20002C = 0x200000 + 0x2c * = start of task context SRAM + offset of (type.ssp.data_offset) - * TCi is the io_tag of struct scic_sds_request + * TCi is the io_tag of struct sci_request */ ret_val = readl(scu_reg_base + (SCU_TASK_CONTEXT_SRAM + offsetof(struct scu_task_context, type.ssp.data_offset)) + @@ -658,7 +658,7 @@ static u32 sci_req_tx_bytes(struct isci_request *ireq) return ret_val; } -enum sci_status scic_sds_request_start(struct isci_request *ireq) +enum sci_status sci_request_start(struct isci_request *ireq) { enum sci_base_request_states state; struct scu_task_context *tc = ireq->tc; @@ -708,7 +708,7 @@ enum sci_status scic_sds_request_start(struct isci_request *ireq) } enum sci_status -scic_sds_io_request_terminate(struct isci_request *ireq) +sci_io_request_terminate(struct isci_request *ireq) { enum sci_base_request_states state; @@ -716,7 +716,7 @@ scic_sds_io_request_terminate(struct isci_request *ireq) switch (state) { case SCI_REQ_CONSTRUCTED: - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_TASK_DONE_TASK_ABORT, SCI_FAILURE_IO_TERMINATED); @@ -759,7 +759,7 @@ scic_sds_io_request_terminate(struct isci_request *ireq) return SCI_FAILURE_INVALID_STATE; } -enum sci_status scic_sds_request_complete(struct isci_request *ireq) +enum sci_status sci_request_complete(struct isci_request *ireq) { enum sci_base_request_states state; struct isci_host *ihost = ireq->owning_controller; @@ -770,7 +770,7 @@ enum sci_status scic_sds_request_complete(struct isci_request *ireq) return SCI_FAILURE_INVALID_STATE; if (ireq->saved_rx_frame_index != SCU_INVALID_FRAME_INDEX) - scic_sds_controller_release_frame(ihost, + sci_controller_release_frame(ihost, ireq->saved_rx_frame_index); /* XXX can we just stop the machine and remove the 'final' state? */ @@ -778,7 +778,7 @@ enum sci_status scic_sds_request_complete(struct isci_request *ireq) return SCI_SUCCESS; } -enum sci_status scic_sds_io_request_event_handler(struct isci_request *ireq, +enum sci_status sci_io_request_event_handler(struct isci_request *ireq, u32 event_code) { enum sci_base_request_states state; @@ -818,7 +818,7 @@ enum sci_status scic_sds_io_request_event_handler(struct isci_request *ireq, * @sci_req: This parameter specifies the request object for which to copy * the response data. */ -static void scic_sds_io_request_copy_response(struct isci_request *ireq) +static void sci_io_request_copy_response(struct isci_request *ireq) { void *resp_buf; u32 len; @@ -848,7 +848,7 @@ request_started_state_tc_event(struct isci_request *ireq, */ switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); break; @@ -868,11 +868,11 @@ request_started_state_tc_event(struct isci_request *ireq, word_cnt); if (resp->status == 0) { - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS_IO_DONE_EARLY); } else { - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); } @@ -885,7 +885,7 @@ request_started_state_tc_event(struct isci_request *ireq, &ireq->ssp.rsp, word_cnt); - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); break; @@ -900,11 +900,11 @@ request_started_state_tc_event(struct isci_request *ireq, datapres = resp_iu->datapres; if (datapres == 1 || datapres == 2) { - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); } else - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); break; @@ -921,12 +921,12 @@ request_started_state_tc_event(struct isci_request *ireq, case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_REG_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SDB_ERR): if (ireq->protocol == SCIC_STP_PROTOCOL) { - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_GET_COMPLETION_TL_STATUS(completion_code) >> SCU_COMPLETION_TL_STATUS_SHIFT, SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED); } else { - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_GET_COMPLETION_TL_STATUS(completion_code) >> SCU_COMPLETION_TL_STATUS_SHIFT, SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); @@ -944,7 +944,7 @@ request_started_state_tc_event(struct isci_request *ireq, case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_OPEN_REJECT_STP_RESOURCES_BUSY): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_OPEN_REJECT_PROTOCOL_NOT_SUPPORTED): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_OPEN_REJECT_CONNECTION_RATE_NOT_SUPPORTED): - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_GET_COMPLETION_TL_STATUS(completion_code) >> SCU_COMPLETION_TL_STATUS_SHIFT, SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED); @@ -967,7 +967,7 @@ request_started_state_tc_event(struct isci_request *ireq, case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_IIT_ENTRY_NV): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_RNCNV_OUTBOUND): default: - scic_sds_request_set_status( + sci_request_set_status( ireq, SCU_GET_COMPLETION_TL_STATUS(completion_code) >> SCU_COMPLETION_TL_STATUS_SHIFT, @@ -991,7 +991,7 @@ request_aborting_state_tc_event(struct isci_request *ireq, switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case (SCU_TASK_DONE_GOOD << SCU_COMPLETION_TL_STATUS_SHIFT): case (SCU_TASK_DONE_TASK_ABORT << SCU_COMPLETION_TL_STATUS_SHIFT): - scic_sds_request_set_status(ireq, SCU_TASK_DONE_TASK_ABORT, + sci_request_set_status(ireq, SCU_TASK_DONE_TASK_ABORT, SCI_FAILURE_IO_TERMINATED); sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); @@ -1012,7 +1012,7 @@ static enum sci_status ssp_task_request_await_tc_event(struct isci_request *ireq { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - scic_sds_request_set_status(ireq, SCU_TASK_DONE_GOOD, + sci_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); sci_change_state(&ireq->sm, SCI_REQ_TASK_WAIT_TC_RESP); @@ -1036,7 +1036,7 @@ static enum sci_status ssp_task_request_await_tc_event(struct isci_request *ireq * If a NAK was received, then it is up to the user to retry * the request. */ - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); @@ -1057,7 +1057,7 @@ smp_request_await_response_tc_event(struct isci_request *ireq, * unexpected. but if the TC has success status, we * complete the IO anyway. */ - scic_sds_request_set_status(ireq, SCU_TASK_DONE_GOOD, + sci_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); @@ -1074,7 +1074,7 @@ smp_request_await_response_tc_event(struct isci_request *ireq, * these SMP_XXX_XX_ERR status. For these type of error, * we ask ihost user to retry the request. */ - scic_sds_request_set_status(ireq, SCU_TASK_DONE_SMP_RESP_TO_ERR, + sci_request_set_status(ireq, SCU_TASK_DONE_SMP_RESP_TO_ERR, SCI_FAILURE_RETRY_REQUIRED); sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); @@ -1084,7 +1084,7 @@ smp_request_await_response_tc_event(struct isci_request *ireq, /* All other completion status cause the IO to be complete. If a NAK * was received, then it is up to the user to retry the request */ - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); @@ -1101,7 +1101,7 @@ smp_request_await_tc_event(struct isci_request *ireq, { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - scic_sds_request_set_status(ireq, SCU_TASK_DONE_GOOD, + sci_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); @@ -1111,7 +1111,7 @@ smp_request_await_tc_event(struct isci_request *ireq, * complete. If a NAK was received, then it is up to * the user to retry the request. */ - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); @@ -1122,7 +1122,7 @@ smp_request_await_tc_event(struct isci_request *ireq, return SCI_SUCCESS; } -void scic_stp_io_request_set_ncq_tag(struct isci_request *ireq, +void sci_stp_io_request_set_ncq_tag(struct isci_request *ireq, u16 ncq_tag) { /** @@ -1171,7 +1171,7 @@ stp_request_non_data_await_h2d_tc_event(struct isci_request *ireq, { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - scic_sds_request_set_status(ireq, SCU_TASK_DONE_GOOD, + sci_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); sci_change_state(&ireq->sm, SCI_REQ_STP_NON_DATA_WAIT_D2H); @@ -1182,7 +1182,7 @@ stp_request_non_data_await_h2d_tc_event(struct isci_request *ireq, * complete. If a NAK was received, then it is up to * the user to retry the request. */ - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); @@ -1198,7 +1198,7 @@ stp_request_non_data_await_h2d_tc_event(struct isci_request *ireq, /* transmit DATA_FIS from (current sgl + offset) for input * parameter length. current sgl and offset is alreay stored in the IO request */ -static enum sci_status scic_sds_stp_request_pio_data_out_trasmit_data_frame( +static enum sci_status sci_stp_request_pio_data_out_trasmit_data_frame( struct isci_request *ireq, u32 length) { @@ -1223,10 +1223,10 @@ static enum sci_status scic_sds_stp_request_pio_data_out_trasmit_data_frame( task_context->type.stp.fis_type = FIS_DATA; /* send the new TC out. */ - return scic_controller_continue_io(ireq); + return sci_controller_continue_io(ireq); } -static enum sci_status scic_sds_stp_request_pio_data_out_transmit_data(struct isci_request *ireq) +static enum sci_status sci_stp_request_pio_data_out_transmit_data(struct isci_request *ireq) { struct isci_stp_request *stp_req = &ireq->stp.req; struct scu_sgl_element_pair *sgl_pair; @@ -1252,7 +1252,7 @@ static enum sci_status scic_sds_stp_request_pio_data_out_transmit_data(struct is return SCI_SUCCESS; if (stp_req->pio_len >= len) { - status = scic_sds_stp_request_pio_data_out_trasmit_data_frame(ireq, len); + status = sci_stp_request_pio_data_out_trasmit_data_frame(ireq, len); if (status != SCI_SUCCESS) return status; stp_req->pio_len -= len; @@ -1261,7 +1261,7 @@ static enum sci_status scic_sds_stp_request_pio_data_out_transmit_data(struct is sgl = pio_sgl_next(stp_req); offset = 0; } else if (stp_req->pio_len < len) { - scic_sds_stp_request_pio_data_out_trasmit_data_frame(ireq, stp_req->pio_len); + sci_stp_request_pio_data_out_trasmit_data_frame(ireq, stp_req->pio_len); /* Sgl offset will be adjusted and saved for future */ offset += stp_req->pio_len; @@ -1284,7 +1284,7 @@ static enum sci_status scic_sds_stp_request_pio_data_out_transmit_data(struct is * specified data region. enum sci_status */ static enum sci_status -scic_sds_stp_request_pio_data_in_copy_data_buffer(struct isci_stp_request *stp_req, +sci_stp_request_pio_data_in_copy_data_buffer(struct isci_stp_request *stp_req, u8 *data_buf, u32 len) { struct isci_request *ireq; @@ -1328,7 +1328,7 @@ scic_sds_stp_request_pio_data_in_copy_data_buffer(struct isci_stp_request *stp_r * * Copy the data buffer to the io request data region. enum sci_status */ -static enum sci_status scic_sds_stp_request_pio_data_in_copy_data( +static enum sci_status sci_stp_request_pio_data_in_copy_data( struct isci_stp_request *stp_req, u8 *data_buffer) { @@ -1338,14 +1338,14 @@ static enum sci_status scic_sds_stp_request_pio_data_in_copy_data( * If there is less than 1K remaining in the transfer request * copy just the data for the transfer */ if (stp_req->pio_len < SCU_MAX_FRAME_BUFFER_SIZE) { - status = scic_sds_stp_request_pio_data_in_copy_data_buffer( + status = sci_stp_request_pio_data_in_copy_data_buffer( stp_req, data_buffer, stp_req->pio_len); if (status == SCI_SUCCESS) stp_req->pio_len = 0; } else { /* We are transfering the whole frame so copy */ - status = scic_sds_stp_request_pio_data_in_copy_data_buffer( + status = sci_stp_request_pio_data_in_copy_data_buffer( stp_req, data_buffer, SCU_MAX_FRAME_BUFFER_SIZE); if (status == SCI_SUCCESS) @@ -1363,7 +1363,7 @@ stp_request_pio_await_h2d_completion_tc_event(struct isci_request *ireq, switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); @@ -1375,7 +1375,7 @@ stp_request_pio_await_h2d_completion_tc_event(struct isci_request *ireq, * complete. If a NAK was received, then it is up to * the user to retry the request. */ - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); @@ -1398,7 +1398,7 @@ pio_data_out_tx_done_tc_event(struct isci_request *ireq, case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): /* Transmit data */ if (stp_req->pio_len != 0) { - status = scic_sds_stp_request_pio_data_out_transmit_data(ireq); + status = sci_stp_request_pio_data_out_transmit_data(ireq); if (status == SCI_SUCCESS) { if (stp_req->pio_len == 0) all_frames_transferred = true; @@ -1426,7 +1426,7 @@ pio_data_out_tx_done_tc_event(struct isci_request *ireq, * If a NAK was received, then it is up to the user to retry * the request. */ - scic_sds_request_set_status( + sci_request_set_status( ireq, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); @@ -1438,16 +1438,16 @@ pio_data_out_tx_done_tc_event(struct isci_request *ireq, return status; } -static void scic_sds_stp_request_udma_complete_request( +static void sci_stp_request_udma_complete_request( struct isci_request *ireq, u32 scu_status, enum sci_status sci_status) { - scic_sds_request_set_status(ireq, scu_status, sci_status); + sci_request_set_status(ireq, scu_status, sci_status); sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); } -static enum sci_status scic_sds_stp_request_udma_general_frame_handler(struct isci_request *ireq, +static enum sci_status sci_stp_request_udma_general_frame_handler(struct isci_request *ireq, u32 frame_index) { struct isci_host *ihost = ireq->owning_controller; @@ -1455,28 +1455,28 @@ static enum sci_status scic_sds_stp_request_udma_general_frame_handler(struct is enum sci_status status; u32 *frame_buffer; - status = scic_sds_unsolicited_frame_control_get_header(&ihost->uf_control, + status = sci_unsolicited_frame_control_get_header(&ihost->uf_control, frame_index, (void **)&frame_header); if ((status == SCI_SUCCESS) && (frame_header->fis_type == FIS_REGD2H)) { - scic_sds_unsolicited_frame_control_get_buffer(&ihost->uf_control, + sci_unsolicited_frame_control_get_buffer(&ihost->uf_control, frame_index, (void **)&frame_buffer); - scic_sds_controller_copy_sata_response(&ireq->stp.rsp, + sci_controller_copy_sata_response(&ireq->stp.rsp, frame_header, frame_buffer); } - scic_sds_controller_release_frame(ihost, frame_index); + sci_controller_release_frame(ihost, frame_index); return status; } enum sci_status -scic_sds_io_request_frame_handler(struct isci_request *ireq, +sci_io_request_frame_handler(struct isci_request *ireq, u32 frame_index) { struct isci_host *ihost = ireq->owning_controller; @@ -1491,7 +1491,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, struct ssp_frame_hdr ssp_hdr; void *frame_header; - scic_sds_unsolicited_frame_control_get_header(&ihost->uf_control, + sci_unsolicited_frame_control_get_header(&ihost->uf_control, frame_index, &frame_header); @@ -1502,7 +1502,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, struct ssp_response_iu *resp_iu; ssize_t word_cnt = SSP_RESP_IU_MAX_SIZE / sizeof(u32); - scic_sds_unsolicited_frame_control_get_buffer(&ihost->uf_control, + sci_unsolicited_frame_control_get_buffer(&ihost->uf_control, frame_index, (void **)&resp_iu); @@ -1512,11 +1512,11 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, if (resp_iu->datapres == 0x01 || resp_iu->datapres == 0x02) { - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); } else - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); } else { @@ -1531,22 +1531,22 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, * In any case we are done with this frame buffer return it to * the controller */ - scic_sds_controller_release_frame(ihost, frame_index); + sci_controller_release_frame(ihost, frame_index); return SCI_SUCCESS; } case SCI_REQ_TASK_WAIT_TC_RESP: - scic_sds_io_request_copy_response(ireq); + sci_io_request_copy_response(ireq); sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); - scic_sds_controller_release_frame(ihost,frame_index); + sci_controller_release_frame(ihost, frame_index); return SCI_SUCCESS; case SCI_REQ_SMP_WAIT_RESP: { struct smp_resp *rsp_hdr = &ireq->smp.rsp; void *frame_header; - scic_sds_unsolicited_frame_control_get_header(&ihost->uf_control, + sci_unsolicited_frame_control_get_header(&ihost->uf_control, frame_index, &frame_header); @@ -1557,7 +1557,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, if (rsp_hdr->frame_type == SMP_RESPONSE) { void *smp_resp; - scic_sds_unsolicited_frame_control_get_buffer(&ihost->uf_control, + sci_unsolicited_frame_control_get_buffer(&ihost->uf_control, frame_index, &smp_resp); @@ -1567,7 +1567,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, sci_swab32_cpy(((u8 *) rsp_hdr) + SMP_RESP_HDR_SZ, smp_resp, word_cnt); - scic_sds_request_set_status(ireq, SCU_TASK_DONE_GOOD, + sci_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); sci_change_state(&ireq->sm, SCI_REQ_SMP_WAIT_TC_COMP); @@ -1584,31 +1584,31 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, frame_index, rsp_hdr->frame_type); - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_TASK_DONE_SMP_FRM_TYPE_ERR, SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); } - scic_sds_controller_release_frame(ihost, frame_index); + sci_controller_release_frame(ihost, frame_index); return SCI_SUCCESS; } case SCI_REQ_STP_UDMA_WAIT_TC_COMP: - return scic_sds_stp_request_udma_general_frame_handler(ireq, + return sci_stp_request_udma_general_frame_handler(ireq, frame_index); case SCI_REQ_STP_UDMA_WAIT_D2H: /* Use the general frame handler to copy the resposne data */ - status = scic_sds_stp_request_udma_general_frame_handler(ireq, + status = sci_stp_request_udma_general_frame_handler(ireq, frame_index); if (status != SCI_SUCCESS) return status; - scic_sds_stp_request_udma_complete_request(ireq, + sci_stp_request_udma_complete_request(ireq, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); @@ -1618,7 +1618,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, struct dev_to_host_fis *frame_header; u32 *frame_buffer; - status = scic_sds_unsolicited_frame_control_get_header(&ihost->uf_control, + status = sci_unsolicited_frame_control_get_header(&ihost->uf_control, frame_index, (void **)&frame_header); @@ -1636,16 +1636,16 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, switch (frame_header->fis_type) { case FIS_REGD2H: - scic_sds_unsolicited_frame_control_get_buffer(&ihost->uf_control, + sci_unsolicited_frame_control_get_buffer(&ihost->uf_control, frame_index, (void **)&frame_buffer); - scic_sds_controller_copy_sata_response(&ireq->stp.rsp, + sci_controller_copy_sata_response(&ireq->stp.rsp, frame_header, frame_buffer); /* The command has completed with error */ - scic_sds_request_set_status(ireq, SCU_TASK_DONE_CHECK_RESPONSE, + sci_request_set_status(ireq, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); break; @@ -1655,7 +1655,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, "violation occurred\n", __func__, stp_req, frame_index); - scic_sds_request_set_status(ireq, SCU_TASK_DONE_UNEXP_FIS, + sci_request_set_status(ireq, SCU_TASK_DONE_UNEXP_FIS, SCI_FAILURE_PROTOCOL_VIOLATION); break; } @@ -1663,7 +1663,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); /* Frame has been decoded return it to the controller */ - scic_sds_controller_release_frame(ihost, frame_index); + sci_controller_release_frame(ihost, frame_index); return status; } @@ -1673,7 +1673,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, struct dev_to_host_fis *frame_header; u32 *frame_buffer; - status = scic_sds_unsolicited_frame_control_get_header(&ihost->uf_control, + status = sci_unsolicited_frame_control_get_header(&ihost->uf_control, frame_index, (void **)&frame_header); @@ -1688,7 +1688,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, switch (frame_header->fis_type) { case FIS_PIO_SETUP: /* Get from the frame buffer the PIO Setup Data */ - scic_sds_unsolicited_frame_control_get_buffer(&ihost->uf_control, + sci_unsolicited_frame_control_get_buffer(&ihost->uf_control, frame_index, (void **)&frame_buffer); @@ -1704,7 +1704,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, /* status: 4th byte in the 3rd dword */ stp_req->status = (frame_buffer[2] >> 24) & 0xff; - scic_sds_controller_copy_sata_response(&ireq->stp.rsp, + sci_controller_copy_sata_response(&ireq->stp.rsp, frame_header, frame_buffer); @@ -1717,7 +1717,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, sci_change_state(&ireq->sm, SCI_REQ_STP_PIO_DATA_IN); } else if (task->data_dir == DMA_TO_DEVICE) { /* Transmit data */ - status = scic_sds_stp_request_pio_data_out_transmit_data(ireq); + status = sci_stp_request_pio_data_out_transmit_data(ireq); if (status != SCI_SUCCESS) break; sci_change_state(&ireq->sm, SCI_REQ_STP_PIO_DATA_OUT); @@ -1745,15 +1745,15 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, break; } - scic_sds_unsolicited_frame_control_get_buffer(&ihost->uf_control, + sci_unsolicited_frame_control_get_buffer(&ihost->uf_control, frame_index, (void **)&frame_buffer); - scic_sds_controller_copy_sata_response(&ireq->stp.req, + sci_controller_copy_sata_response(&ireq->stp.req, frame_header, frame_buffer); - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); @@ -1766,7 +1766,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, } /* Frame is decoded return it to the controller */ - scic_sds_controller_release_frame(ihost, frame_index); + sci_controller_release_frame(ihost, frame_index); return status; } @@ -1775,7 +1775,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, struct dev_to_host_fis *frame_header; struct sata_fis_data *frame_buffer; - status = scic_sds_unsolicited_frame_control_get_header(&ihost->uf_control, + status = sci_unsolicited_frame_control_get_header(&ihost->uf_control, frame_index, (void **)&frame_header); @@ -1800,14 +1800,14 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, frame_index, frame_header->fis_type); - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_FAILURE_IO_REQUIRES_SCSI_ABORT); sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); /* Frame is decoded return it to the controller */ - scic_sds_controller_release_frame(ihost, frame_index); + sci_controller_release_frame(ihost, frame_index); return status; } @@ -1815,15 +1815,15 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, ireq->saved_rx_frame_index = frame_index; stp_req->pio_len = 0; } else { - scic_sds_unsolicited_frame_control_get_buffer(&ihost->uf_control, + sci_unsolicited_frame_control_get_buffer(&ihost->uf_control, frame_index, (void **)&frame_buffer); - status = scic_sds_stp_request_pio_data_in_copy_data(stp_req, + status = sci_stp_request_pio_data_in_copy_data(stp_req, (u8 *)frame_buffer); /* Frame is decoded return it to the controller */ - scic_sds_controller_release_frame(ihost, frame_index); + sci_controller_release_frame(ihost, frame_index); } /* Check for the end of the transfer, are there more @@ -1833,7 +1833,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, return status; if ((stp_req->status & ATA_BUSY) == 0) { - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); @@ -1848,7 +1848,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, struct dev_to_host_fis *frame_header; u32 *frame_buffer; - status = scic_sds_unsolicited_frame_control_get_header(&ihost->uf_control, + status = sci_unsolicited_frame_control_get_header(&ihost->uf_control, frame_index, (void **)&frame_header); if (status != SCI_SUCCESS) { @@ -1864,16 +1864,16 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, switch (frame_header->fis_type) { case FIS_REGD2H: - scic_sds_unsolicited_frame_control_get_buffer(&ihost->uf_control, + sci_unsolicited_frame_control_get_buffer(&ihost->uf_control, frame_index, (void **)&frame_buffer); - scic_sds_controller_copy_sata_response(&ireq->stp.rsp, + sci_controller_copy_sata_response(&ireq->stp.rsp, frame_header, frame_buffer); /* The command has completed with error */ - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); break; @@ -1886,7 +1886,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, stp_req, frame_index); - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_TASK_DONE_UNEXP_FIS, SCI_FAILURE_PROTOCOL_VIOLATION); break; @@ -1895,7 +1895,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); /* Frame has been decoded return it to the controller */ - scic_sds_controller_release_frame(ihost, frame_index); + sci_controller_release_frame(ihost, frame_index); return status; } @@ -1904,7 +1904,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, * TODO: Is it even possible to get an unsolicited frame in the * aborting state? */ - scic_sds_controller_release_frame(ihost, frame_index); + sci_controller_release_frame(ihost, frame_index); return SCI_SUCCESS; default: @@ -1915,7 +1915,7 @@ scic_sds_io_request_frame_handler(struct isci_request *ireq, frame_index, state); - scic_sds_controller_release_frame(ihost, frame_index); + sci_controller_release_frame(ihost, frame_index); return SCI_FAILURE_INVALID_STATE; } } @@ -1927,7 +1927,7 @@ static enum sci_status stp_request_udma_await_tc_event(struct isci_request *ireq switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - scic_sds_stp_request_udma_complete_request(ireq, + sci_stp_request_udma_complete_request(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); break; @@ -1938,10 +1938,10 @@ static enum sci_status stp_request_udma_await_tc_event(struct isci_request *ireq * completion. */ if (ireq->stp.rsp.fis_type == FIS_REGD2H) { - scic_sds_remote_device_suspend(ireq->target_device, + sci_remote_device_suspend(ireq->target_device, SCU_EVENT_SPECIFIC(SCU_NORMALIZE_COMPLETION_STATUS(completion_code))); - scic_sds_stp_request_udma_complete_request(ireq, + sci_stp_request_udma_complete_request(ireq, SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); } else { @@ -1965,12 +1965,12 @@ static enum sci_status stp_request_udma_await_tc_event(struct isci_request *ireq case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_LL_R_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_CMD_LL_R_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_CRC_ERR): - scic_sds_remote_device_suspend(ireq->target_device, + sci_remote_device_suspend(ireq->target_device, SCU_EVENT_SPECIFIC(SCU_NORMALIZE_COMPLETION_STATUS(completion_code))); /* Fall through to the default case */ default: /* All other completion status cause the IO to be complete. */ - scic_sds_stp_request_udma_complete_request(ireq, + sci_stp_request_udma_complete_request(ireq, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); break; @@ -1985,7 +1985,7 @@ stp_request_soft_reset_await_h2d_asserted_tc_event(struct isci_request *ireq, { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - scic_sds_request_set_status(ireq, SCU_TASK_DONE_GOOD, + sci_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); sci_change_state(&ireq->sm, SCI_REQ_STP_SOFT_RESET_WAIT_H2D_DIAG); @@ -1997,7 +1997,7 @@ stp_request_soft_reset_await_h2d_asserted_tc_event(struct isci_request *ireq, * If a NAK was received, then it is up to the user to retry * the request. */ - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); @@ -2014,7 +2014,7 @@ stp_request_soft_reset_await_h2d_diagnostic_tc_event(struct isci_request *ireq, { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - scic_sds_request_set_status(ireq, SCU_TASK_DONE_GOOD, + sci_request_set_status(ireq, SCU_TASK_DONE_GOOD, SCI_SUCCESS); sci_change_state(&ireq->sm, SCI_REQ_STP_SOFT_RESET_WAIT_D2H); @@ -2025,7 +2025,7 @@ stp_request_soft_reset_await_h2d_diagnostic_tc_event(struct isci_request *ireq, * a NAK was received, then it is up to the user to retry the * request. */ - scic_sds_request_set_status(ireq, + sci_request_set_status(ireq, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); @@ -2037,7 +2037,7 @@ stp_request_soft_reset_await_h2d_diagnostic_tc_event(struct isci_request *ireq, } enum sci_status -scic_sds_io_request_tc_completion(struct isci_request *ireq, +sci_io_request_tc_completion(struct isci_request *ireq, u32 completion_code) { enum sci_base_request_states state; @@ -2832,7 +2832,7 @@ static void isci_request_io_request_complete(struct isci_host *ihost, ); /* complete the io request to the core. */ - scic_controller_complete_io(ihost, request->target_device, request); + sci_controller_complete_io(ihost, request->target_device, request); isci_put_device(idev); /* set terminated handle so it cannot be completed or @@ -2842,7 +2842,7 @@ static void isci_request_io_request_complete(struct isci_host *ihost, set_bit(IREQ_TERMINATED, &request->flags); } -static void scic_sds_request_started_state_enter(struct sci_base_state_machine *sm) +static void sci_request_started_state_enter(struct sci_base_state_machine *sm) { struct isci_request *ireq = container_of(sm, typeof(*ireq), sm); struct domain_device *dev = ireq->target_device->domain_dev; @@ -2879,7 +2879,7 @@ static void scic_sds_request_started_state_enter(struct sci_base_state_machine * } } -static void scic_sds_request_completed_state_enter(struct sci_base_state_machine *sm) +static void sci_request_completed_state_enter(struct sci_base_state_machine *sm) { struct isci_request *ireq = container_of(sm, typeof(*ireq), sm); struct isci_host *ihost = ireq->owning_controller; @@ -2892,7 +2892,7 @@ static void scic_sds_request_completed_state_enter(struct sci_base_state_machine isci_task_request_complete(ihost, ireq, ireq->sci_status); } -static void scic_sds_request_aborting_state_enter(struct sci_base_state_machine *sm) +static void sci_request_aborting_state_enter(struct sci_base_state_machine *sm) { struct isci_request *ireq = container_of(sm, typeof(*ireq), sm); @@ -2900,31 +2900,31 @@ static void scic_sds_request_aborting_state_enter(struct sci_base_state_machine ireq->tc->abort = 1; } -static void scic_sds_stp_request_started_non_data_await_h2d_completion_enter(struct sci_base_state_machine *sm) +static void sci_stp_request_started_non_data_await_h2d_completion_enter(struct sci_base_state_machine *sm) { struct isci_request *ireq = container_of(sm, typeof(*ireq), sm); - scic_sds_remote_device_set_working_request(ireq->target_device, + sci_remote_device_set_working_request(ireq->target_device, ireq); } -static void scic_sds_stp_request_started_pio_await_h2d_completion_enter(struct sci_base_state_machine *sm) +static void sci_stp_request_started_pio_await_h2d_completion_enter(struct sci_base_state_machine *sm) { struct isci_request *ireq = container_of(sm, typeof(*ireq), sm); - scic_sds_remote_device_set_working_request(ireq->target_device, + sci_remote_device_set_working_request(ireq->target_device, ireq); } -static void scic_sds_stp_request_started_soft_reset_await_h2d_asserted_completion_enter(struct sci_base_state_machine *sm) +static void sci_stp_request_started_soft_reset_await_h2d_asserted_completion_enter(struct sci_base_state_machine *sm) { struct isci_request *ireq = container_of(sm, typeof(*ireq), sm); - scic_sds_remote_device_set_working_request(ireq->target_device, + sci_remote_device_set_working_request(ireq->target_device, ireq); } -static void scic_sds_stp_request_started_soft_reset_await_h2d_diagnostic_completion_enter(struct sci_base_state_machine *sm) +static void sci_stp_request_started_soft_reset_await_h2d_diagnostic_completion_enter(struct sci_base_state_machine *sm) { struct isci_request *ireq = container_of(sm, typeof(*ireq), sm); struct scu_task_context *tc = ireq->tc; @@ -2938,22 +2938,22 @@ static void scic_sds_stp_request_started_soft_reset_await_h2d_diagnostic_complet /* Clear the TC control bit */ tc->control_frame = 0; - status = scic_controller_continue_io(ireq); + status = sci_controller_continue_io(ireq); WARN_ONCE(status != SCI_SUCCESS, "isci: continue io failure\n"); } -static const struct sci_base_state scic_sds_request_state_table[] = { +static const struct sci_base_state sci_request_state_table[] = { [SCI_REQ_INIT] = { }, [SCI_REQ_CONSTRUCTED] = { }, [SCI_REQ_STARTED] = { - .enter_state = scic_sds_request_started_state_enter, + .enter_state = sci_request_started_state_enter, }, [SCI_REQ_STP_NON_DATA_WAIT_H2D] = { - .enter_state = scic_sds_stp_request_started_non_data_await_h2d_completion_enter, + .enter_state = sci_stp_request_started_non_data_await_h2d_completion_enter, }, [SCI_REQ_STP_NON_DATA_WAIT_D2H] = { }, [SCI_REQ_STP_PIO_WAIT_H2D] = { - .enter_state = scic_sds_stp_request_started_pio_await_h2d_completion_enter, + .enter_state = sci_stp_request_started_pio_await_h2d_completion_enter, }, [SCI_REQ_STP_PIO_WAIT_FRAME] = { }, [SCI_REQ_STP_PIO_DATA_IN] = { }, @@ -2961,10 +2961,10 @@ static const struct sci_base_state scic_sds_request_state_table[] = { [SCI_REQ_STP_UDMA_WAIT_TC_COMP] = { }, [SCI_REQ_STP_UDMA_WAIT_D2H] = { }, [SCI_REQ_STP_SOFT_RESET_WAIT_H2D_ASSERTED] = { - .enter_state = scic_sds_stp_request_started_soft_reset_await_h2d_asserted_completion_enter, + .enter_state = sci_stp_request_started_soft_reset_await_h2d_asserted_completion_enter, }, [SCI_REQ_STP_SOFT_RESET_WAIT_H2D_DIAG] = { - .enter_state = scic_sds_stp_request_started_soft_reset_await_h2d_diagnostic_completion_enter, + .enter_state = sci_stp_request_started_soft_reset_await_h2d_diagnostic_completion_enter, }, [SCI_REQ_STP_SOFT_RESET_WAIT_D2H] = { }, [SCI_REQ_TASK_WAIT_TC_COMP] = { }, @@ -2972,20 +2972,20 @@ static const struct sci_base_state scic_sds_request_state_table[] = { [SCI_REQ_SMP_WAIT_RESP] = { }, [SCI_REQ_SMP_WAIT_TC_COMP] = { }, [SCI_REQ_COMPLETED] = { - .enter_state = scic_sds_request_completed_state_enter, + .enter_state = sci_request_completed_state_enter, }, [SCI_REQ_ABORTING] = { - .enter_state = scic_sds_request_aborting_state_enter, + .enter_state = sci_request_aborting_state_enter, }, [SCI_REQ_FINAL] = { }, }; static void -scic_sds_general_request_construct(struct isci_host *ihost, +sci_general_request_construct(struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq) { - sci_init_sm(&ireq->sm, scic_sds_request_state_table, SCI_REQ_INIT); + sci_init_sm(&ireq->sm, sci_request_state_table, SCI_REQ_INIT); ireq->target_device = idev; ireq->protocol = SCIC_NO_PROTOCOL; @@ -2997,7 +2997,7 @@ scic_sds_general_request_construct(struct isci_host *ihost, } static enum sci_status -scic_io_request_construct(struct isci_host *ihost, +sci_io_request_construct(struct isci_host *ihost, struct isci_remote_device *idev, struct isci_request *ireq) { @@ -3005,7 +3005,7 @@ scic_io_request_construct(struct isci_host *ihost, enum sci_status status = SCI_SUCCESS; /* Build the common part of the request */ - scic_sds_general_request_construct(ihost, idev, ireq); + sci_general_request_construct(ihost, idev, ireq); if (idev->rnc.remote_node_index == SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX) return SCI_FAILURE_INVALID_REMOTE_DEVICE; @@ -3024,7 +3024,7 @@ scic_io_request_construct(struct isci_host *ihost, return status; } -enum sci_status scic_task_request_construct(struct isci_host *ihost, +enum sci_status sci_task_request_construct(struct isci_host *ihost, struct isci_remote_device *idev, u16 io_tag, struct isci_request *ireq) { @@ -3032,7 +3032,7 @@ enum sci_status scic_task_request_construct(struct isci_host *ihost, enum sci_status status = SCI_SUCCESS; /* Build the common part of the request */ - scic_sds_general_request_construct(ihost, idev, ireq); + sci_general_request_construct(ihost, idev, ireq); if (dev->dev_type == SAS_END_DEV || dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) { @@ -3053,7 +3053,7 @@ static enum sci_status isci_request_ssp_request_construct( "%s: request = %p\n", __func__, request); - status = scic_io_request_construct_basic_ssp(request); + status = sci_io_request_construct_basic_ssp(request); return status; } @@ -3074,7 +3074,7 @@ static enum sci_status isci_request_stp_request_construct( */ register_fis = isci_sata_task_to_fis_copy(task); - status = scic_io_request_construct_basic_sata(request); + status = sci_io_request_construct_basic_sata(request); /* Set the ncq tag in the fis, from the queue * command in the task. @@ -3091,7 +3091,7 @@ static enum sci_status isci_request_stp_request_construct( } static enum sci_status -scic_io_request_construct_smp(struct device *dev, +sci_io_request_construct_smp(struct device *dev, struct isci_request *ireq, struct sas_task *task) { @@ -3141,8 +3141,8 @@ scic_io_request_construct_smp(struct device *dev, task_context = ireq->tc; - idev = scic_sds_request_get_device(ireq); - iport = scic_sds_request_get_port(ireq); + idev = sci_request_get_device(ireq); + iport = sci_request_get_port(ireq); /* * Fill in the TC with the its required data @@ -3152,8 +3152,8 @@ scic_io_request_construct_smp(struct device *dev, task_context->initiator_request = 1; task_context->connection_rate = idev->connection_rate; task_context->protocol_engine_index = - scic_sds_controller_get_protocol_engine_group(ihost); - task_context->logical_port_index = scic_sds_port_get_index(iport); + sci_controller_get_protocol_engine_group(ihost); + task_context->logical_port_index = sci_port_get_index(iport); task_context->protocol_type = SCU_TASK_CONTEXT_PROTOCOL_SMP; task_context->abort = 0; task_context->valid = SCU_TASK_CONTEXT_VALID; @@ -3195,9 +3195,9 @@ scic_io_request_construct_smp(struct device *dev, task_context->task_phase = 0; ireq->post_context = (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | - (scic_sds_controller_get_protocol_engine_group(ihost) << + (sci_controller_get_protocol_engine_group(ihost) << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | - (scic_sds_port_get_index(iport) << + (sci_port_get_index(iport) << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | ISCI_TAG_TCI(ireq->io_tag)); /* @@ -3229,7 +3229,7 @@ static enum sci_status isci_smp_request_build(struct isci_request *ireq) struct device *dev = &ireq->isci_host->pdev->dev; enum sci_status status = SCI_FAILURE; - status = scic_io_request_construct_smp(dev, ireq, task); + status = sci_io_request_construct_smp(dev, ireq, task); if (status != SCI_SUCCESS) dev_warn(&ireq->isci_host->pdev->dev, "%s: failed with status = %d\n", @@ -3283,7 +3283,7 @@ static enum sci_status isci_io_request_build(struct isci_host *ihost, return SCI_FAILURE_INSUFFICIENT_RESOURCES; } - status = scic_io_request_construct(ihost, idev, request); + status = sci_io_request_construct(ihost, idev, request); if (status != SCI_SUCCESS) { dev_warn(&ihost->pdev->dev, @@ -3388,7 +3388,7 @@ int isci_request_execute(struct isci_host *ihost, struct isci_remote_device *ide * request was built that way (ie. * ireq->is_task_management_request is false). */ - status = scic_controller_start_task(ihost, + status = sci_controller_start_task(ihost, idev, ireq); } else { @@ -3396,7 +3396,7 @@ int isci_request_execute(struct isci_host *ihost, struct isci_remote_device *ide } } else { /* send the request, let the core assign the IO TAG. */ - status = scic_controller_start_io(ihost, idev, + status = sci_controller_start_io(ihost, idev, ireq); } diff --git a/drivers/scsi/isci/request.h b/drivers/scsi/isci/request.h index 0cafcead7a0..08fcf98e70f 100644 --- a/drivers/scsi/isci/request.h +++ b/drivers/scsi/isci/request.h @@ -301,75 +301,75 @@ enum sci_base_request_states { }; /** - * scic_sds_request_get_controller() - + * sci_request_get_controller() - * * This macro will return the controller for this io request object */ -#define scic_sds_request_get_controller(ireq) \ +#define sci_request_get_controller(ireq) \ ((ireq)->owning_controller) /** - * scic_sds_request_get_device() - + * sci_request_get_device() - * * This macro will return the device for this io request object */ -#define scic_sds_request_get_device(ireq) \ +#define sci_request_get_device(ireq) \ ((ireq)->target_device) /** - * scic_sds_request_get_port() - + * sci_request_get_port() - * * This macro will return the port for this io request object */ -#define scic_sds_request_get_port(ireq) \ - scic_sds_remote_device_get_port(scic_sds_request_get_device(ireq)) +#define sci_request_get_port(ireq) \ + sci_remote_device_get_port(sci_request_get_device(ireq)) /** - * scic_sds_request_get_post_context() - + * sci_request_get_post_context() - * * This macro returns the constructed post context result for the io request. */ -#define scic_sds_request_get_post_context(ireq) \ +#define sci_request_get_post_context(ireq) \ ((ireq)->post_context) /** - * scic_sds_request_get_task_context() - + * sci_request_get_task_context() - * * This is a helper macro to return the os handle for this request object. */ -#define scic_sds_request_get_task_context(request) \ +#define sci_request_get_task_context(request) \ ((request)->task_context_buffer) /** - * scic_sds_request_set_status() - + * sci_request_set_status() - * * This macro will set the scu hardware status and sci request completion * status for an io request. */ -#define scic_sds_request_set_status(request, scu_status_code, sci_status_code) \ +#define sci_request_set_status(request, scu_status_code, sci_status_code) \ { \ (request)->scu_status = (scu_status_code); \ (request)->sci_status = (sci_status_code); \ } -enum sci_status scic_sds_request_start(struct isci_request *ireq); -enum sci_status scic_sds_io_request_terminate(struct isci_request *ireq); +enum sci_status sci_request_start(struct isci_request *ireq); +enum sci_status sci_io_request_terminate(struct isci_request *ireq); enum sci_status -scic_sds_io_request_event_handler(struct isci_request *ireq, +sci_io_request_event_handler(struct isci_request *ireq, u32 event_code); enum sci_status -scic_sds_io_request_frame_handler(struct isci_request *ireq, +sci_io_request_frame_handler(struct isci_request *ireq, u32 frame_index); enum sci_status -scic_sds_task_request_terminate(struct isci_request *ireq); +sci_task_request_terminate(struct isci_request *ireq); extern enum sci_status -scic_sds_request_complete(struct isci_request *ireq); +sci_request_complete(struct isci_request *ireq); extern enum sci_status -scic_sds_io_request_tc_completion(struct isci_request *ireq, u32 code); +sci_io_request_tc_completion(struct isci_request *ireq, u32 code); /* XXX open code in caller */ static inline dma_addr_t -scic_io_request_get_dma_addr(struct isci_request *ireq, void *virt_addr) +sci_io_request_get_dma_addr(struct isci_request *ireq, void *virt_addr) { char *requested_addr = (char *)virt_addr; @@ -500,17 +500,17 @@ int isci_request_execute(struct isci_host *ihost, struct isci_remote_device *ide void isci_terminate_pending_requests(struct isci_host *ihost, struct isci_remote_device *idev); enum sci_status -scic_task_request_construct(struct isci_host *ihost, +sci_task_request_construct(struct isci_host *ihost, struct isci_remote_device *idev, u16 io_tag, struct isci_request *ireq); enum sci_status -scic_task_request_construct_ssp(struct isci_request *ireq); +sci_task_request_construct_ssp(struct isci_request *ireq); enum sci_status -scic_task_request_construct_sata(struct isci_request *ireq); +sci_task_request_construct_sata(struct isci_request *ireq); void -scic_stp_io_request_set_ncq_tag(struct isci_request *ireq, u16 ncq_tag); -void scic_sds_smp_request_copy_response(struct isci_request *ireq); +sci_stp_io_request_set_ncq_tag(struct isci_request *ireq, u16 ncq_tag); +void sci_smp_request_copy_response(struct isci_request *ireq); static inline int isci_task_is_ncq_recovery(struct sas_task *task) { diff --git a/drivers/scsi/isci/sata.c b/drivers/scsi/isci/sata.c index 87d8cc1a6e3..47b96c21548 100644 --- a/drivers/scsi/isci/sata.c +++ b/drivers/scsi/isci/sata.c @@ -116,7 +116,7 @@ void isci_sata_set_ncq_tag( struct isci_request *request = task->lldd_task; register_fis->sector_count = qc->tag << 3; - scic_stp_io_request_set_ncq_tag(request, qc->tag); + sci_stp_io_request_set_ncq_tag(request, qc->tag); } /** @@ -187,7 +187,7 @@ enum sci_status isci_sata_management_task_request_build(struct isci_request *ire /* core builds the protocol specific request * based on the h2d fis. */ - status = scic_task_request_construct_sata(ireq); + status = sci_task_request_construct_sata(ireq); return status; } diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index 3a1fc55a755..d040aa2f372 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -257,12 +257,12 @@ static struct isci_request *isci_task_request_build(struct isci_host *ihost, return NULL; /* let the core do it's construct. */ - status = scic_task_request_construct(ihost, idev, tag, + status = sci_task_request_construct(ihost, idev, tag, ireq); if (status != SCI_SUCCESS) { dev_warn(&ihost->pdev->dev, - "%s: scic_task_request_construct failed - " + "%s: sci_task_request_construct failed - " "status = 0x%x\n", __func__, status); @@ -272,7 +272,7 @@ static struct isci_request *isci_task_request_build(struct isci_host *ihost, /* XXX convert to get this from task->tproto like other drivers */ if (dev->dev_type == SAS_END_DEV) { isci_tmf->proto = SAS_PROTOCOL_SSP; - status = scic_task_request_construct_ssp(ireq); + status = sci_task_request_construct_ssp(ireq); if (status != SCI_SUCCESS) return NULL; } @@ -332,7 +332,7 @@ int isci_task_execute_tmf(struct isci_host *ihost, spin_lock_irqsave(&ihost->scic_lock, flags); /* start the TMF io. */ - status = scic_controller_start_task(ihost, idev, ireq); + status = sci_controller_start_task(ihost, idev, ireq); if (status != SCI_TASK_SUCCESS) { dev_warn(&ihost->pdev->dev, @@ -364,7 +364,7 @@ int isci_task_execute_tmf(struct isci_host *ihost, if (tmf->cb_state_func != NULL) tmf->cb_state_func(isci_tmf_timed_out, tmf, tmf->cb_data); - scic_controller_terminate_request(ihost, + sci_controller_terminate_request(ihost, idev, ireq); @@ -556,7 +556,7 @@ static void isci_terminate_request_core(struct isci_host *ihost, if (!test_bit(IREQ_TERMINATED, &isci_request->flags)) { was_terminated = true; needs_cleanup_handling = true; - status = scic_controller_terminate_request(ihost, + status = sci_controller_terminate_request(ihost, idev, isci_request); } @@ -569,7 +569,7 @@ static void isci_terminate_request_core(struct isci_host *ihost, */ if (status != SCI_SUCCESS) { dev_err(&ihost->pdev->dev, - "%s: scic_controller_terminate_request" + "%s: sci_controller_terminate_request" " returned = 0x%x\n", __func__, status); @@ -1251,7 +1251,7 @@ isci_task_request_complete(struct isci_host *ihost, /* PRINT_TMF( ((struct isci_tmf *)request->task)); */ tmf_complete = tmf->complete; - scic_controller_complete_io(ihost, ireq->target_device, ireq); + sci_controller_complete_io(ihost, ireq->target_device, ireq); /* set the 'terminated' flag handle to make sure it cannot be terminated * or completed again. */ @@ -1514,12 +1514,12 @@ static int isci_reset_device(struct isci_host *ihost, dev_dbg(&ihost->pdev->dev, "%s: idev %p\n", __func__, idev); spin_lock_irqsave(&ihost->scic_lock, flags); - status = scic_remote_device_reset(idev); + status = sci_remote_device_reset(idev); if (status != SCI_SUCCESS) { spin_unlock_irqrestore(&ihost->scic_lock, flags); dev_warn(&ihost->pdev->dev, - "%s: scic_remote_device_reset(%p) returned %d!\n", + "%s: sci_remote_device_reset(%p) returned %d!\n", __func__, idev, status); return TMF_RESP_FUNC_FAILED; @@ -1540,7 +1540,7 @@ static int isci_reset_device(struct isci_host *ihost, /* Since all pending TCs have been cleaned, resume the RNC. */ spin_lock_irqsave(&ihost->scic_lock, flags); - status = scic_remote_device_reset_complete(idev); + status = sci_remote_device_reset_complete(idev); spin_unlock_irqrestore(&ihost->scic_lock, flags); /* If this is a device on an expander, bring the phy back up. */ @@ -1560,7 +1560,7 @@ static int isci_reset_device(struct isci_host *ihost, if (status != SCI_SUCCESS) { dev_warn(&ihost->pdev->dev, - "%s: scic_remote_device_reset_complete(%p) " + "%s: sci_remote_device_reset_complete(%p) " "returned %d!\n", __func__, idev, status); } diff --git a/drivers/scsi/isci/unsolicited_frame_control.c b/drivers/scsi/isci/unsolicited_frame_control.c index a0e6f89fc6a..e9e1e2abacb 100644 --- a/drivers/scsi/isci/unsolicited_frame_control.c +++ b/drivers/scsi/isci/unsolicited_frame_control.c @@ -57,10 +57,10 @@ #include "unsolicited_frame_control.h" #include "registers.h" -int scic_sds_unsolicited_frame_control_construct(struct isci_host *ihost) +int sci_unsolicited_frame_control_construct(struct isci_host *ihost) { - struct scic_sds_unsolicited_frame_control *uf_control = &ihost->uf_control; - struct scic_sds_unsolicited_frame *uf; + struct sci_unsolicited_frame_control *uf_control = &ihost->uf_control; + struct sci_unsolicited_frame *uf; u32 buf_len, header_len, i; dma_addr_t dma; size_t size; @@ -139,23 +139,14 @@ int scic_sds_unsolicited_frame_control_construct(struct isci_host *ihost) return 0; } -/** - * This method returns the frame header for the specified frame index. - * @uf_control: - * @frame_index: - * @frame_header: - * - * enum sci_status - */ -enum sci_status scic_sds_unsolicited_frame_control_get_header( - struct scic_sds_unsolicited_frame_control *uf_control, - u32 frame_index, - void **frame_header) +enum sci_status sci_unsolicited_frame_control_get_header(struct sci_unsolicited_frame_control *uf_control, + u32 frame_index, + void **frame_header) { if (frame_index < SCU_MAX_UNSOLICITED_FRAMES) { - /* - * Skip the first word in the frame since this is a controll word used - * by the hardware. */ + /* Skip the first word in the frame since this is a controll word used + * by the hardware. + */ *frame_header = &uf_control->buffers.array[frame_index].header->data; return SCI_SUCCESS; @@ -164,18 +155,9 @@ enum sci_status scic_sds_unsolicited_frame_control_get_header( return SCI_FAILURE_INVALID_PARAMETER_VALUE; } -/** - * This method returns the frame buffer for the specified frame index. - * @uf_control: - * @frame_index: - * @frame_buffer: - * - * enum sci_status - */ -enum sci_status scic_sds_unsolicited_frame_control_get_buffer( - struct scic_sds_unsolicited_frame_control *uf_control, - u32 frame_index, - void **frame_buffer) +enum sci_status sci_unsolicited_frame_control_get_buffer(struct sci_unsolicited_frame_control *uf_control, + u32 frame_index, + void **frame_buffer) { if (frame_index < SCU_MAX_UNSOLICITED_FRAMES) { *frame_buffer = uf_control->buffers.array[frame_index].buffer; @@ -186,19 +168,8 @@ enum sci_status scic_sds_unsolicited_frame_control_get_buffer( return SCI_FAILURE_INVALID_PARAMETER_VALUE; } -/** - * This method releases the frame once this is done the frame is available for - * re-use by the hardware. The data contained in the frame header and frame - * buffer is no longer valid. - * @uf_control: This parameter specifies the UF control object - * @frame_index: This parameter specifies the frame index to attempt to release. - * - * This method returns an indication to the caller as to whether the - * unsolicited frame get pointer should be updated. - */ -bool scic_sds_unsolicited_frame_control_release_frame( - struct scic_sds_unsolicited_frame_control *uf_control, - u32 frame_index) +bool sci_unsolicited_frame_control_release_frame(struct sci_unsolicited_frame_control *uf_control, + u32 frame_index) { u32 frame_get; u32 frame_cycle; diff --git a/drivers/scsi/isci/unsolicited_frame_control.h b/drivers/scsi/isci/unsolicited_frame_control.h index c0285a3db56..b849a84af34 100644 --- a/drivers/scsi/isci/unsolicited_frame_control.h +++ b/drivers/scsi/isci/unsolicited_frame_control.h @@ -92,12 +92,12 @@ enum unsolicited_frame_state { }; /** - * struct scic_sds_unsolicited_frame - + * struct sci_unsolicited_frame - * * This is the unsolicited frame data structure it acts as the container for * the current frame state, frame header and frame buffer. */ -struct scic_sds_unsolicited_frame { +struct sci_unsolicited_frame { /** * This field contains the current frame state */ @@ -116,11 +116,11 @@ struct scic_sds_unsolicited_frame { }; /** - * struct scic_sds_uf_header_array - + * struct sci_uf_header_array - * * This structure contains all of the unsolicited frame header information. */ -struct scic_sds_uf_header_array { +struct sci_uf_header_array { /** * This field is represents a virtual pointer to the start * address of the UF address table. The table contains @@ -137,19 +137,19 @@ struct scic_sds_uf_header_array { }; /** - * struct scic_sds_uf_buffer_array - + * struct sci_uf_buffer_array - * * This structure contains all of the unsolicited frame buffer (actual payload) * information. */ -struct scic_sds_uf_buffer_array { +struct sci_uf_buffer_array { /** * This field is the unsolicited frame data its used to manage * the data for the unsolicited frame requests. It also represents * the virtual address location that corresponds to the * physical_address field. */ - struct scic_sds_unsolicited_frame array[SCU_MAX_UNSOLICITED_FRAMES]; + struct sci_unsolicited_frame array[SCU_MAX_UNSOLICITED_FRAMES]; /** * This field specifies the physical address location for the UF @@ -159,13 +159,13 @@ struct scic_sds_uf_buffer_array { }; /** - * struct scic_sds_uf_address_table_array - + * struct sci_uf_address_table_array - * * This object maintains all of the unsolicited frame address table specific * data. The address table is a collection of 64-bit pointers that point to * 1KB buffers into which the silicon will DMA unsolicited frames. */ -struct scic_sds_uf_address_table_array { +struct sci_uf_address_table_array { /** * This field represents a virtual pointer that refers to the * starting address of the UF address table. @@ -182,11 +182,11 @@ struct scic_sds_uf_address_table_array { }; /** - * struct scic_sds_unsolicited_frame_control - + * struct sci_unsolicited_frame_control - * * This object contains all of the data necessary to handle unsolicited frames. */ -struct scic_sds_unsolicited_frame_control { +struct sci_unsolicited_frame_control { /** * This field is the software copy of the unsolicited frame queue * get pointer. The controller object writes this value to the @@ -198,38 +198,38 @@ struct scic_sds_unsolicited_frame_control { * This field contains all of the unsolicited frame header * specific fields. */ - struct scic_sds_uf_header_array headers; + struct sci_uf_header_array headers; /** * This field contains all of the unsolicited frame buffer * specific fields. */ - struct scic_sds_uf_buffer_array buffers; + struct sci_uf_buffer_array buffers; /** * This field contains all of the unsolicited frame address table * specific fields. */ - struct scic_sds_uf_address_table_array address_table; + struct sci_uf_address_table_array address_table; }; struct isci_host; -int scic_sds_unsolicited_frame_control_construct(struct isci_host *ihost); +int sci_unsolicited_frame_control_construct(struct isci_host *ihost); -enum sci_status scic_sds_unsolicited_frame_control_get_header( - struct scic_sds_unsolicited_frame_control *uf_control, +enum sci_status sci_unsolicited_frame_control_get_header( + struct sci_unsolicited_frame_control *uf_control, u32 frame_index, void **frame_header); -enum sci_status scic_sds_unsolicited_frame_control_get_buffer( - struct scic_sds_unsolicited_frame_control *uf_control, +enum sci_status sci_unsolicited_frame_control_get_buffer( + struct sci_unsolicited_frame_control *uf_control, u32 frame_index, void **frame_buffer); -bool scic_sds_unsolicited_frame_control_release_frame( - struct scic_sds_unsolicited_frame_control *uf_control, +bool sci_unsolicited_frame_control_release_frame( + struct sci_unsolicited_frame_control *uf_control, u32 frame_index); #endif /* _SCIC_SDS_UNSOLICITED_FRAME_CONTROL_H_ */ -- cgit v1.2.3-70-g09d2 From 34a991587a5cc9f78960c2c9beea217866458c41 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 1 Jul 2011 02:25:15 -0700 Subject: isci: kill 'get/set' macros Most of these simple dereference macros are longer than their open coded equivalent. Deleting enum sci_controller_mode is thrown in for good measure. Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/host.c | 8 +- drivers/scsi/isci/host.h | 20 +- drivers/scsi/isci/isci.h | 5 - drivers/scsi/isci/phy.c | 33 ++-- drivers/scsi/isci/phy.h | 17 -- drivers/scsi/isci/port.c | 4 +- drivers/scsi/isci/port.h | 17 -- drivers/scsi/isci/port_config.c | 14 +- drivers/scsi/isci/remote_device.c | 43 ++--- drivers/scsi/isci/remote_device.h | 97 ++-------- drivers/scsi/isci/remote_node_context.c | 2 +- drivers/scsi/isci/remote_node_context.h | 3 - drivers/scsi/isci/request.c | 328 +++++++++++++------------------- drivers/scsi/isci/request.h | 73 ------- drivers/scsi/isci/task.c | 2 +- 15 files changed, 188 insertions(+), 478 deletions(-) (limited to 'drivers/scsi/isci/port.h') diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index f31f64e4b71..88e73133353 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -2627,7 +2627,7 @@ enum sci_status sci_controller_start_io(struct isci_host *ihost, return status; set_bit(IREQ_ACTIVE, &ireq->flags); - sci_controller_post_request(ihost, sci_request_get_post_context(ireq)); + sci_controller_post_request(ihost, ireq->post_context); return SCI_SUCCESS; } @@ -2707,7 +2707,7 @@ enum sci_status sci_controller_continue_io(struct isci_request *ireq) } set_bit(IREQ_ACTIVE, &ireq->flags); - sci_controller_post_request(ihost, sci_request_get_post_context(ireq)); + sci_controller_post_request(ihost, ireq->post_context); return SCI_SUCCESS; } @@ -2747,9 +2747,7 @@ enum sci_task_status sci_controller_start_task(struct isci_host *ihost, return SCI_SUCCESS; case SCI_SUCCESS: set_bit(IREQ_ACTIVE, &ireq->flags); - - sci_controller_post_request(ihost, - sci_request_get_post_context(ireq)); + sci_controller_post_request(ihost, ireq->post_context); break; default: break; diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index d87f21de180..a72d2be2445 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -172,6 +172,7 @@ struct isci_host { /* XXX kill */ bool phy_startup_timer_pending; u32 next_phy_to_start; + /* XXX convert to unsigned long and use bitops */ u8 invalid_phy_mask; /* TODO attempt dynamic interrupt coalescing scheme */ @@ -359,13 +360,8 @@ static inline struct isci_host *dev_to_ihost(struct domain_device *dev) return dev->port->ha->lldd_ha; } -/** - * sci_controller_get_protocol_engine_group() - - * - * This macro returns the protocol engine group for this controller object. - * Presently we only support protocol engine group 0 so just return that - */ -#define sci_controller_get_protocol_engine_group(controller) 0 +/* we always use protocol engine group zero */ +#define ISCI_PEG 0 /* see sci_controller_io_tag_allocate|free for how seq and tci are built */ #define ISCI_TAG(seq, tci) (((u16) (seq)) << 12 | tci) @@ -385,16 +381,6 @@ static inline int sci_remote_device_node_count(struct isci_remote_device *idev) return SCU_SSP_REMOTE_NODE_COUNT; } -/** - * sci_controller_set_invalid_phy() - - * - * This macro will set the bit in the invalid phy mask for this controller - * object. This is used to control messages reported for invalid link up - * notifications. - */ -#define sci_controller_set_invalid_phy(controller, phy) \ - ((controller)->invalid_phy_mask |= (1 << (phy)->phy_index)) - /** * sci_controller_clear_invalid_phy() - * diff --git a/drivers/scsi/isci/isci.h b/drivers/scsi/isci/isci.h index 3afccfcb94e..d1de63312e7 100644 --- a/drivers/scsi/isci/isci.h +++ b/drivers/scsi/isci/isci.h @@ -73,11 +73,6 @@ #define SCI_CONTROLLER_INVALID_IO_TAG 0xFFFF -enum sci_controller_mode { - SCI_MODE_SPEED, - SCI_MODE_SIZE /* deprecated */ -}; - #define SCI_MAX_PHYS (4UL) #define SCI_MAX_PORTS SCI_MAX_PHYS #define SCI_MAX_SMP_PHYS (384) /* not silicon constrained */ diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c index 0df9f713f48..e56080af78f 100644 --- a/drivers/scsi/isci/phy.c +++ b/drivers/scsi/isci/phy.c @@ -265,10 +265,11 @@ done: * port (i.e. it's contained in the dummy port). !NULL All other * values indicate a handle/pointer to the port containing the phy. */ -struct isci_port *phy_get_non_dummy_port( - struct isci_phy *iphy) +struct isci_port *phy_get_non_dummy_port(struct isci_phy *iphy) { - if (sci_port_get_index(iphy->owning_port) == SCIC_SDS_DUMMY_PORT) + struct isci_port *iport = iphy->owning_port; + + if (iport->physical_port_index == SCIC_SDS_DUMMY_PORT) return NULL; return iphy->owning_port; @@ -858,10 +859,9 @@ enum sci_status sci_phy_frame_handler(struct isci_phy *iphy, u32 frame_index) struct dev_to_host_fis *frame_header; u32 *fis_frame_data; - result = sci_unsolicited_frame_control_get_header( - &(sci_phy_get_controller(iphy)->uf_control), - frame_index, - (void **)&frame_header); + result = sci_unsolicited_frame_control_get_header(&ihost->uf_control, + frame_index, + (void **)&frame_header); if (result != SCI_SUCCESS) return result; @@ -1090,6 +1090,8 @@ static void scu_link_layer_tx_hard_reset( static void sci_phy_stopped_state_enter(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); + struct isci_port *iport = iphy->owning_port; + struct isci_host *ihost = iport->owning_controller; /* * @todo We need to get to the controller to place this PE in a @@ -1100,14 +1102,14 @@ static void sci_phy_stopped_state_enter(struct sci_base_state_machine *sm) scu_link_layer_stop_protocol_engine(iphy); if (iphy->sm.previous_state_id != SCI_PHY_INITIAL) - sci_controller_link_down(sci_phy_get_controller(iphy), - phy_get_non_dummy_port(iphy), - iphy); + sci_controller_link_down(ihost, phy_get_non_dummy_port(iphy), iphy); } static void sci_phy_starting_state_enter(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); + struct isci_port *iport = iphy->owning_port; + struct isci_host *ihost = iport->owning_controller; scu_link_layer_stop_protocol_engine(iphy); scu_link_layer_start_oob(iphy); @@ -1117,9 +1119,7 @@ static void sci_phy_starting_state_enter(struct sci_base_state_machine *sm) iphy->bcn_received_while_port_unassigned = false; if (iphy->sm.previous_state_id == SCI_PHY_READY) - sci_controller_link_down(sci_phy_get_controller(iphy), - phy_get_non_dummy_port(iphy), - iphy); + sci_controller_link_down(ihost, phy_get_non_dummy_port(iphy), iphy); sci_change_state(&iphy->sm, SCI_PHY_SUB_INITIAL); } @@ -1127,11 +1127,10 @@ static void sci_phy_starting_state_enter(struct sci_base_state_machine *sm) static void sci_phy_ready_state_enter(struct sci_base_state_machine *sm) { struct isci_phy *iphy = container_of(sm, typeof(*iphy), sm); + struct isci_port *iport = iphy->owning_port; + struct isci_host *ihost = iport->owning_controller; - sci_controller_link_up(sci_phy_get_controller(iphy), - phy_get_non_dummy_port(iphy), - iphy); - + sci_controller_link_up(ihost, phy_get_non_dummy_port(iphy), iphy); } static void sci_phy_ready_state_exit(struct sci_base_state_machine *sm) diff --git a/drivers/scsi/isci/phy.h b/drivers/scsi/isci/phy.h index 5d2c1b4906a..67699c8e321 100644 --- a/drivers/scsi/isci/phy.h +++ b/drivers/scsi/isci/phy.h @@ -440,23 +440,6 @@ enum sci_phy_states { SCI_PHY_FINAL, }; -/** - * sci_phy_get_index() - - * - * This macro returns the phy index for the specified phy - */ -#define sci_phy_get_index(phy) \ - ((phy)->phy_index) - -/** - * sci_phy_get_controller() - This macro returns the controller for this - * phy - * - * - */ -#define sci_phy_get_controller(phy) \ - (sci_port_get_controller((phy)->owning_port)) - void sci_phy_construct( struct isci_phy *iphy, struct isci_port *iport, diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 1822ed68409..8f6f9b77e41 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -654,7 +654,7 @@ static void sci_port_activate_phy(struct isci_port *iport, struct isci_phy *iphy void sci_port_deactivate_phy(struct isci_port *iport, struct isci_phy *iphy, bool do_notify_user) { - struct isci_host *ihost = sci_port_get_controller(iport); + struct isci_host *ihost = iport->owning_controller; iport->active_phy_mask &= ~(1 << iphy->phy_index); @@ -678,7 +678,7 @@ static void sci_port_invalid_link_up(struct isci_port *iport, struct isci_phy *i * invalid link. */ if ((ihost->invalid_phy_mask & (1 << iphy->phy_index)) == 0) { - sci_controller_set_invalid_phy(ihost, iphy); + ihost->invalid_phy_mask |= 1 << iphy->phy_index; dev_warn(&ihost->pdev->dev, "Invalid link up!\n"); } } diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index 4c4ab8126d9..b50ecd4e8f9 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -210,23 +210,6 @@ enum sci_port_states { }; -/** - * sci_port_get_controller() - - * - * Helper macro to get the owning controller of this port - */ -#define sci_port_get_controller(this_port) \ - ((this_port)->owning_controller) - -/** - * sci_port_get_index() - - * - * This macro returns the physical port index for this port object - */ -#define sci_port_get_index(this_port) \ - ((this_port)->physical_port_index) - - static inline void sci_port_decrement_request_count(struct isci_port *iport) { if (WARN_ONCE(iport->started_request_count == 0, diff --git a/drivers/scsi/isci/port_config.c b/drivers/scsi/isci/port_config.c index c8b16db6bbd..486b113c634 100644 --- a/drivers/scsi/isci/port_config.c +++ b/drivers/scsi/isci/port_config.c @@ -367,10 +367,10 @@ static void sci_mpc_agent_link_up(struct isci_host *ihost, if (!iport) return; - port_agent->phy_ready_mask |= (1 << sci_phy_get_index(iphy)); + port_agent->phy_ready_mask |= (1 << iphy->phy_index); sci_port_link_up(iport, iphy); - if ((iport->active_phy_mask & (1 << sci_phy_get_index(iphy)))) - port_agent->phy_configured_mask |= (1 << sci_phy_get_index(iphy)); + if ((iport->active_phy_mask & (1 << iphy->phy_index))) + port_agent->phy_configured_mask |= (1 << iphy->phy_index); } /** @@ -404,10 +404,8 @@ static void sci_mpc_agent_link_down( * rebuilding the port with the phys that remain in the ready * state. */ - port_agent->phy_ready_mask &= - ~(1 << sci_phy_get_index(iphy)); - port_agent->phy_configured_mask &= - ~(1 << sci_phy_get_index(iphy)); + port_agent->phy_ready_mask &= ~(1 << iphy->phy_index); + port_agent->phy_configured_mask &= ~(1 << iphy->phy_index); /* * Check to see if there are more phys waiting to be @@ -643,7 +641,7 @@ static void sci_apc_agent_link_down( struct isci_port *iport, struct isci_phy *iphy) { - port_agent->phy_ready_mask &= ~(1 << sci_phy_get_index(iphy)); + port_agent->phy_ready_mask &= ~(1 << iphy->phy_index); if (!iport) return; diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index 8c752abb433..85e54f54207 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -456,7 +456,7 @@ static void sci_remote_device_start_request(struct isci_remote_device *idev, sci_port_complete_io(iport, idev, ireq); else { kref_get(&idev->kref); - sci_remote_device_increment_request_count(idev); + idev->started_request_count++; } } @@ -636,7 +636,7 @@ enum sci_status sci_remote_device_complete_io(struct isci_host *ihost, * status of "DEVICE_RESET_REQUIRED", instead of "INVALID STATE". */ sci_change_state(sm, SCI_STP_DEV_AWAIT_RESET); - } else if (sci_remote_device_get_request_count(idev) == 0) + } else if (idev->started_request_count == 0) sci_change_state(sm, SCI_STP_DEV_IDLE); break; case SCI_SMP_DEV_CMD: @@ -650,10 +650,10 @@ enum sci_status sci_remote_device_complete_io(struct isci_host *ihost, if (status != SCI_SUCCESS) break; - if (sci_remote_device_get_request_count(idev) == 0) + if (idev->started_request_count == 0) sci_remote_node_context_destruct(&idev->rnc, - rnc_destruct_done, - idev); + rnc_destruct_done, + idev); break; } @@ -761,26 +761,17 @@ enum sci_status sci_remote_device_start_task(struct isci_host *ihost, return status; } -/** - * - * @sci_dev: - * @request: - * - * This method takes the request and bulids an appropriate SCU context for the - * request and then requests the controller to post the request. none - */ -void sci_remote_device_post_request( - struct isci_remote_device *idev, - u32 request) +void sci_remote_device_post_request(struct isci_remote_device *idev, u32 request) { + struct isci_port *iport = idev->owning_port; u32 context; - context = sci_remote_device_build_command_context(idev, request); + context = request | + (ISCI_PEG << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | + (iport->physical_port_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | + idev->rnc.remote_node_index; - sci_controller_post_request( - sci_remote_device_get_controller(idev), - context - ); + sci_controller_post_request(iport->owning_controller, context); } /* called once the remote node context has transisitioned to a @@ -893,7 +884,7 @@ static void sci_remote_device_stopped_state_enter(struct sci_base_state_machine static void sci_remote_device_starting_state_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - struct isci_host *ihost = sci_remote_device_get_controller(idev); + struct isci_host *ihost = idev->owning_port->owning_controller; isci_remote_device_not_ready(ihost, idev, SCIC_REMOTE_DEVICE_NOT_READY_START_REQUESTED); @@ -961,7 +952,7 @@ static void sci_stp_remote_device_ready_idle_substate_enter(struct sci_base_stat static void sci_stp_remote_device_ready_cmd_substate_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - struct isci_host *ihost = sci_remote_device_get_controller(idev); + struct isci_host *ihost = idev->owning_port->owning_controller; BUG_ON(idev->working_request == NULL); @@ -972,7 +963,7 @@ static void sci_stp_remote_device_ready_cmd_substate_enter(struct sci_base_state static void sci_stp_remote_device_ready_ncq_error_substate_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - struct isci_host *ihost = sci_remote_device_get_controller(idev); + struct isci_host *ihost = idev->owning_port->owning_controller; if (idev->not_ready_reason == SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED) isci_remote_device_not_ready(ihost, idev, @@ -982,7 +973,7 @@ static void sci_stp_remote_device_ready_ncq_error_substate_enter(struct sci_base static void sci_smp_remote_device_ready_idle_substate_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - struct isci_host *ihost = sci_remote_device_get_controller(idev); + struct isci_host *ihost = idev->owning_port->owning_controller; isci_remote_device_ready(ihost, idev); } @@ -990,7 +981,7 @@ static void sci_smp_remote_device_ready_idle_substate_enter(struct sci_base_stat static void sci_smp_remote_device_ready_cmd_substate_enter(struct sci_base_state_machine *sm) { struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); - struct isci_host *ihost = sci_remote_device_get_controller(idev); + struct isci_host *ihost = idev->owning_port->owning_controller; BUG_ON(idev->working_request == NULL); diff --git a/drivers/scsi/isci/remote_device.h b/drivers/scsi/isci/remote_device.h index fa9a0e6cc30..57ccfc3d6ad 100644 --- a/drivers/scsi/isci/remote_device.h +++ b/drivers/scsi/isci/remote_device.h @@ -305,91 +305,18 @@ static inline bool dev_is_expander(struct domain_device *dev) return dev->dev_type == EDGE_DEV || dev->dev_type == FANOUT_DEV; } -/** - * sci_remote_device_increment_request_count() - - * - * This macro incrments the request count for this device - */ -#define sci_remote_device_increment_request_count(idev) \ - ((idev)->started_request_count++) - -/** - * sci_remote_device_decrement_request_count() - - * - * This macro decrements the request count for this device. This count will - * never decrment past 0. - */ -#define sci_remote_device_decrement_request_count(idev) \ - ((idev)->started_request_count > 0 ? \ - (idev)->started_request_count-- : 0) - -/** - * sci_remote_device_get_request_count() - - * - * This is a helper macro to return the current device request count. - */ -#define sci_remote_device_get_request_count(idev) \ - ((idev)->started_request_count) - -/** - * sci_remote_device_get_controller() - - * - * This macro returns the controller object that contains this device object - */ -#define sci_remote_device_get_controller(idev) \ - sci_port_get_controller(sci_remote_device_get_port(idev)) - -/** - * sci_remote_device_get_port() - - * - * This macro returns the owning port of this device - */ -#define sci_remote_device_get_port(idev) \ - ((idev)->owning_port) - -/** - * sci_remote_device_get_controller_peg() - - * - * This macro returns the controllers protocol engine group - */ -#define sci_remote_device_get_controller_peg(idev) \ - (\ - sci_controller_get_protocol_engine_group(\ - sci_port_get_controller(\ - sci_remote_device_get_port(idev) \ - ) \ - ) \ - ) - -/** - * sci_remote_device_get_index() - - * - * This macro returns the remote node index for this device object - */ -#define sci_remote_device_get_index(idev) \ - ((idev)->rnc.remote_node_index) - -/** - * sci_remote_device_build_command_context() - - * - * This macro builds a remote device context for the SCU post request operation - */ -#define sci_remote_device_build_command_context(device, command) \ - ((command) \ - | (sci_remote_device_get_controller_peg((device)) << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) \ - | ((device)->owning_port->physical_port_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) \ - | (sci_remote_device_get_index((device))) \ - ) - -/** - * sci_remote_device_set_working_request() - - * - * This macro makes the working request assingment for the remote device - * object. To clear the working request use this macro with a NULL request - * object. - */ -#define sci_remote_device_set_working_request(device, request) \ - ((device)->working_request = (request)) +static inline void sci_remote_device_decrement_request_count(struct isci_remote_device *idev) +{ + /* XXX delete this voodoo when converting to the top-level device + * reference count + */ + if (WARN_ONCE(idev->started_request_count == 0, + "%s: tried to decrement started_request_count past 0!?", + __func__)) + /* pass */; + else + idev->started_request_count--; +} enum sci_status sci_remote_device_frame_handler( struct isci_remote_device *idev, diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index c2dfd5a7218..748e8339d1e 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -111,7 +111,7 @@ static void sci_remote_node_context_construct_buffer(struct sci_remote_node_cont struct isci_host *ihost; __le64 sas_addr; - ihost = sci_remote_device_get_controller(idev); + ihost = idev->owning_port->owning_controller; rnc = sci_rnc_by_id(ihost, rni); memset(rnc, 0, sizeof(union scu_remote_node_context) diff --git a/drivers/scsi/isci/remote_node_context.h b/drivers/scsi/isci/remote_node_context.h index b475c5c2664..41580ad1252 100644 --- a/drivers/scsi/isci/remote_node_context.h +++ b/drivers/scsi/isci/remote_node_context.h @@ -204,9 +204,6 @@ void sci_remote_node_context_construct(struct sci_remote_node_context *rnc, bool sci_remote_node_context_is_ready( struct sci_remote_node_context *sci_rnc); -#define sci_remote_node_context_get_remote_node_index(rcn) \ - ((rnc)->remote_node_index) - enum sci_status sci_remote_node_context_event_handler(struct sci_remote_node_context *sci_rnc, u32 event_code); enum sci_status sci_remote_node_context_destruct(struct sci_remote_node_context *sci_rnc, diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index bcb3c08c19a..7c500bb6a8e 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -211,22 +211,21 @@ static void scu_ssp_reqeust_construct_task_context( struct isci_remote_device *idev; struct isci_port *iport; - idev = sci_request_get_device(ireq); - iport = sci_request_get_port(ireq); + idev = ireq->target_device; + iport = idev->owning_port; /* Fill in the TC with the its required data */ task_context->abort = 0; task_context->priority = 0; task_context->initiator_request = 1; task_context->connection_rate = idev->connection_rate; - task_context->protocol_engine_index = - sci_controller_get_protocol_engine_group(controller); - task_context->logical_port_index = sci_port_get_index(iport); + task_context->protocol_engine_index = ISCI_PEG; + task_context->logical_port_index = iport->physical_port_index; task_context->protocol_type = SCU_TASK_CONTEXT_PROTOCOL_SSP; task_context->valid = SCU_TASK_CONTEXT_VALID; task_context->context_type = SCU_TASK_CONTEXT_TYPE; - task_context->remote_node_index = sci_remote_device_get_index(idev); + task_context->remote_node_index = idev->rnc.remote_node_index; task_context->command_code = 0; task_context->link_layer_control = 0; @@ -242,9 +241,8 @@ static void scu_ssp_reqeust_construct_task_context( task_context->task_phase = 0x01; ireq->post_context = (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | - (sci_controller_get_protocol_engine_group(controller) << - SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | - (sci_port_get_index(iport) << + (ISCI_PEG << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | + (iport->physical_port_index << SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | ISCI_TAG_TCI(ireq->io_tag)); @@ -349,23 +347,21 @@ static void scu_sata_reqeust_construct_task_context( struct isci_remote_device *idev; struct isci_port *iport; - idev = sci_request_get_device(ireq); - iport = sci_request_get_port(ireq); + idev = ireq->target_device; + iport = idev->owning_port; /* Fill in the TC with the its required data */ task_context->abort = 0; task_context->priority = SCU_TASK_PRIORITY_NORMAL; task_context->initiator_request = 1; task_context->connection_rate = idev->connection_rate; - task_context->protocol_engine_index = - sci_controller_get_protocol_engine_group(controller); - task_context->logical_port_index = - sci_port_get_index(iport); + task_context->protocol_engine_index = ISCI_PEG; + task_context->logical_port_index = iport->physical_port_index; task_context->protocol_type = SCU_TASK_CONTEXT_PROTOCOL_STP; task_context->valid = SCU_TASK_CONTEXT_VALID; task_context->context_type = SCU_TASK_CONTEXT_TYPE; - task_context->remote_node_index = sci_remote_device_get_index(idev); + task_context->remote_node_index = idev->rnc.remote_node_index; task_context->command_code = 0; task_context->link_layer_control = 0; @@ -385,11 +381,10 @@ static void scu_sata_reqeust_construct_task_context( task_context->type.words[0] = *(u32 *)&ireq->stp.cmd; ireq->post_context = (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | - (sci_controller_get_protocol_engine_group(controller) << - SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | - (sci_port_get_index(iport) << - SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | - ISCI_TAG_TCI(ireq->io_tag)); + (ISCI_PEG << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | + (iport->physical_port_index << + SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | + ISCI_TAG_TCI(ireq->io_tag)); /* * Copy the physical address for the command buffer to the SCU Task * Context. We must offset the command buffer by 4 bytes because the @@ -716,10 +711,8 @@ sci_io_request_terminate(struct isci_request *ireq) switch (state) { case SCI_REQ_CONSTRUCTED: - sci_request_set_status(ireq, - SCU_TASK_DONE_TASK_ABORT, - SCI_FAILURE_IO_TERMINATED); - + ireq->scu_status = SCU_TASK_DONE_TASK_ABORT; + ireq->sci_status = SCI_FAILURE_IO_TERMINATED; sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); return SCI_SUCCESS; case SCI_REQ_STARTED: @@ -848,9 +841,8 @@ request_started_state_tc_event(struct isci_request *ireq, */ switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - sci_request_set_status(ireq, - SCU_TASK_DONE_GOOD, - SCI_SUCCESS); + ireq->scu_status = SCU_TASK_DONE_GOOD; + ireq->sci_status = SCI_SUCCESS; break; case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_EARLY_RESP): { /* There are times when the SCU hardware will return an early @@ -868,13 +860,11 @@ request_started_state_tc_event(struct isci_request *ireq, word_cnt); if (resp->status == 0) { - sci_request_set_status(ireq, - SCU_TASK_DONE_GOOD, - SCI_SUCCESS_IO_DONE_EARLY); + ireq->scu_status = SCU_TASK_DONE_GOOD; + ireq->sci_status = SCI_SUCCESS_IO_DONE_EARLY; } else { - sci_request_set_status(ireq, - SCU_TASK_DONE_CHECK_RESPONSE, - SCI_FAILURE_IO_RESPONSE_VALID); + ireq->scu_status = SCU_TASK_DONE_CHECK_RESPONSE; + ireq->sci_status = SCI_FAILURE_IO_RESPONSE_VALID; } break; } @@ -885,9 +875,8 @@ request_started_state_tc_event(struct isci_request *ireq, &ireq->ssp.rsp, word_cnt); - sci_request_set_status(ireq, - SCU_TASK_DONE_CHECK_RESPONSE, - SCI_FAILURE_IO_RESPONSE_VALID); + ireq->scu_status = SCU_TASK_DONE_CHECK_RESPONSE; + ireq->sci_status = SCI_FAILURE_IO_RESPONSE_VALID; break; } @@ -900,13 +889,12 @@ request_started_state_tc_event(struct isci_request *ireq, datapres = resp_iu->datapres; if (datapres == 1 || datapres == 2) { - sci_request_set_status(ireq, - SCU_TASK_DONE_CHECK_RESPONSE, - SCI_FAILURE_IO_RESPONSE_VALID); - } else - sci_request_set_status(ireq, - SCU_TASK_DONE_GOOD, - SCI_SUCCESS); + ireq->scu_status = SCU_TASK_DONE_CHECK_RESPONSE; + ireq->sci_status = SCI_FAILURE_IO_RESPONSE_VALID; + } else { + ireq->scu_status = SCU_TASK_DONE_GOOD; + ireq->sci_status = SCI_SUCCESS; + } break; /* only stp device gets suspended. */ case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_ACK_NAK_TO): @@ -921,15 +909,13 @@ request_started_state_tc_event(struct isci_request *ireq, case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_REG_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SDB_ERR): if (ireq->protocol == SCIC_STP_PROTOCOL) { - sci_request_set_status(ireq, - SCU_GET_COMPLETION_TL_STATUS(completion_code) >> - SCU_COMPLETION_TL_STATUS_SHIFT, - SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED); + ireq->scu_status = SCU_GET_COMPLETION_TL_STATUS(completion_code) >> + SCU_COMPLETION_TL_STATUS_SHIFT; + ireq->sci_status = SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED; } else { - sci_request_set_status(ireq, - SCU_GET_COMPLETION_TL_STATUS(completion_code) >> - SCU_COMPLETION_TL_STATUS_SHIFT, - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); + ireq->scu_status = SCU_GET_COMPLETION_TL_STATUS(completion_code) >> + SCU_COMPLETION_TL_STATUS_SHIFT; + ireq->sci_status = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR; } break; @@ -944,10 +930,9 @@ request_started_state_tc_event(struct isci_request *ireq, case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_OPEN_REJECT_STP_RESOURCES_BUSY): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_OPEN_REJECT_PROTOCOL_NOT_SUPPORTED): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_OPEN_REJECT_CONNECTION_RATE_NOT_SUPPORTED): - sci_request_set_status(ireq, - SCU_GET_COMPLETION_TL_STATUS(completion_code) >> - SCU_COMPLETION_TL_STATUS_SHIFT, - SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED); + ireq->scu_status = SCU_GET_COMPLETION_TL_STATUS(completion_code) >> + SCU_COMPLETION_TL_STATUS_SHIFT; + ireq->sci_status = SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED; break; /* neither ssp nor stp gets suspended. */ @@ -967,11 +952,9 @@ request_started_state_tc_event(struct isci_request *ireq, case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_IIT_ENTRY_NV): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_RNCNV_OUTBOUND): default: - sci_request_set_status( - ireq, - SCU_GET_COMPLETION_TL_STATUS(completion_code) >> - SCU_COMPLETION_TL_STATUS_SHIFT, - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); + ireq->scu_status = SCU_GET_COMPLETION_TL_STATUS(completion_code) >> + SCU_COMPLETION_TL_STATUS_SHIFT; + ireq->sci_status = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR; break; } @@ -991,9 +974,8 @@ request_aborting_state_tc_event(struct isci_request *ireq, switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case (SCU_TASK_DONE_GOOD << SCU_COMPLETION_TL_STATUS_SHIFT): case (SCU_TASK_DONE_TASK_ABORT << SCU_COMPLETION_TL_STATUS_SHIFT): - sci_request_set_status(ireq, SCU_TASK_DONE_TASK_ABORT, - SCI_FAILURE_IO_TERMINATED); - + ireq->scu_status = SCU_TASK_DONE_TASK_ABORT; + ireq->sci_status = SCI_FAILURE_IO_TERMINATED; sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; @@ -1012,9 +994,8 @@ static enum sci_status ssp_task_request_await_tc_event(struct isci_request *ireq { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - sci_request_set_status(ireq, SCU_TASK_DONE_GOOD, - SCI_SUCCESS); - + ireq->scu_status = SCU_TASK_DONE_GOOD; + ireq->sci_status = SCI_SUCCESS; sci_change_state(&ireq->sm, SCI_REQ_TASK_WAIT_TC_RESP); break; case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_ACK_NAK_TO): @@ -1036,10 +1017,8 @@ static enum sci_status ssp_task_request_await_tc_event(struct isci_request *ireq * If a NAK was received, then it is up to the user to retry * the request. */ - sci_request_set_status(ireq, - SCU_NORMALIZE_COMPLETION_STATUS(completion_code), - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - + ireq->scu_status = SCU_NORMALIZE_COMPLETION_STATUS(completion_code); + ireq->sci_status = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR; sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; } @@ -1057,12 +1036,10 @@ smp_request_await_response_tc_event(struct isci_request *ireq, * unexpected. but if the TC has success status, we * complete the IO anyway. */ - sci_request_set_status(ireq, SCU_TASK_DONE_GOOD, - SCI_SUCCESS); - + ireq->scu_status = SCU_TASK_DONE_GOOD; + ireq->sci_status = SCI_SUCCESS; sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; - case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SMP_RESP_TO_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SMP_UFI_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SMP_FRM_TYPE_ERR): @@ -1074,20 +1051,16 @@ smp_request_await_response_tc_event(struct isci_request *ireq, * these SMP_XXX_XX_ERR status. For these type of error, * we ask ihost user to retry the request. */ - sci_request_set_status(ireq, SCU_TASK_DONE_SMP_RESP_TO_ERR, - SCI_FAILURE_RETRY_REQUIRED); - + ireq->scu_status = SCU_TASK_DONE_SMP_RESP_TO_ERR; + ireq->sci_status = SCI_FAILURE_RETRY_REQUIRED; sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; - default: /* All other completion status cause the IO to be complete. If a NAK * was received, then it is up to the user to retry the request */ - sci_request_set_status(ireq, - SCU_NORMALIZE_COMPLETION_STATUS(completion_code), - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - + ireq->scu_status = SCU_NORMALIZE_COMPLETION_STATUS(completion_code); + ireq->sci_status = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR; sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; } @@ -1101,9 +1074,8 @@ smp_request_await_tc_event(struct isci_request *ireq, { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - sci_request_set_status(ireq, SCU_TASK_DONE_GOOD, - SCI_SUCCESS); - + ireq->scu_status = SCU_TASK_DONE_GOOD; + ireq->sci_status = SCI_SUCCESS; sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; default: @@ -1111,10 +1083,8 @@ smp_request_await_tc_event(struct isci_request *ireq, * complete. If a NAK was received, then it is up to * the user to retry the request. */ - sci_request_set_status(ireq, - SCU_NORMALIZE_COMPLETION_STATUS(completion_code), - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - + ireq->scu_status = SCU_NORMALIZE_COMPLETION_STATUS(completion_code); + ireq->sci_status = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR; sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; } @@ -1171,9 +1141,8 @@ stp_request_non_data_await_h2d_tc_event(struct isci_request *ireq, { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - sci_request_set_status(ireq, SCU_TASK_DONE_GOOD, - SCI_SUCCESS); - + ireq->scu_status = SCU_TASK_DONE_GOOD; + ireq->sci_status = SCI_SUCCESS; sci_change_state(&ireq->sm, SCI_REQ_STP_NON_DATA_WAIT_D2H); break; @@ -1182,10 +1151,8 @@ stp_request_non_data_await_h2d_tc_event(struct isci_request *ireq, * complete. If a NAK was received, then it is up to * the user to retry the request. */ - sci_request_set_status(ireq, - SCU_NORMALIZE_COMPLETION_STATUS(completion_code), - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - + ireq->scu_status = SCU_NORMALIZE_COMPLETION_STATUS(completion_code); + ireq->sci_status = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR; sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; } @@ -1363,10 +1330,8 @@ stp_request_pio_await_h2d_completion_tc_event(struct isci_request *ireq, switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - sci_request_set_status(ireq, - SCU_TASK_DONE_GOOD, - SCI_SUCCESS); - + ireq->scu_status = SCU_TASK_DONE_GOOD; + ireq->sci_status = SCI_SUCCESS; sci_change_state(&ireq->sm, SCI_REQ_STP_PIO_WAIT_FRAME); break; @@ -1375,10 +1340,8 @@ stp_request_pio_await_h2d_completion_tc_event(struct isci_request *ireq, * complete. If a NAK was received, then it is up to * the user to retry the request. */ - sci_request_set_status(ireq, - SCU_NORMALIZE_COMPLETION_STATUS(completion_code), - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - + ireq->scu_status = SCU_NORMALIZE_COMPLETION_STATUS(completion_code); + ireq->sci_status = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR; sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; } @@ -1426,11 +1389,8 @@ pio_data_out_tx_done_tc_event(struct isci_request *ireq, * If a NAK was received, then it is up to the user to retry * the request. */ - sci_request_set_status( - ireq, - SCU_NORMALIZE_COMPLETION_STATUS(completion_code), - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - + ireq->scu_status = SCU_NORMALIZE_COMPLETION_STATUS(completion_code); + ireq->sci_status = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR; sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; } @@ -1438,15 +1398,6 @@ pio_data_out_tx_done_tc_event(struct isci_request *ireq, return status; } -static void sci_stp_request_udma_complete_request( - struct isci_request *ireq, - u32 scu_status, - enum sci_status sci_status) -{ - sci_request_set_status(ireq, scu_status, sci_status); - sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); -} - static enum sci_status sci_stp_request_udma_general_frame_handler(struct isci_request *ireq, u32 frame_index) { @@ -1512,13 +1463,12 @@ sci_io_request_frame_handler(struct isci_request *ireq, if (resp_iu->datapres == 0x01 || resp_iu->datapres == 0x02) { - sci_request_set_status(ireq, - SCU_TASK_DONE_CHECK_RESPONSE, - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - } else - sci_request_set_status(ireq, - SCU_TASK_DONE_GOOD, - SCI_SUCCESS); + ireq->scu_status = SCU_TASK_DONE_CHECK_RESPONSE; + ireq->sci_status = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR; + } else { + ireq->scu_status = SCU_TASK_DONE_GOOD; + ireq->sci_status = SCI_SUCCESS; + } } else { /* not a response frame, why did it get forwarded? */ dev_err(&ihost->pdev->dev, @@ -1567,9 +1517,8 @@ sci_io_request_frame_handler(struct isci_request *ireq, sci_swab32_cpy(((u8 *) rsp_hdr) + SMP_RESP_HDR_SZ, smp_resp, word_cnt); - sci_request_set_status(ireq, SCU_TASK_DONE_GOOD, - SCI_SUCCESS); - + ireq->scu_status = SCU_TASK_DONE_GOOD; + ireq->sci_status = SCI_SUCCESS; sci_change_state(&ireq->sm, SCI_REQ_SMP_WAIT_TC_COMP); } else { /* @@ -1584,10 +1533,8 @@ sci_io_request_frame_handler(struct isci_request *ireq, frame_index, rsp_hdr->frame_type); - sci_request_set_status(ireq, - SCU_TASK_DONE_SMP_FRM_TYPE_ERR, - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - + ireq->scu_status = SCU_TASK_DONE_SMP_FRM_TYPE_ERR; + ireq->sci_status = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR; sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); } @@ -1602,16 +1549,14 @@ sci_io_request_frame_handler(struct isci_request *ireq, case SCI_REQ_STP_UDMA_WAIT_D2H: /* Use the general frame handler to copy the resposne data */ - status = sci_stp_request_udma_general_frame_handler(ireq, - frame_index); + status = sci_stp_request_udma_general_frame_handler(ireq, frame_index); if (status != SCI_SUCCESS) return status; - sci_stp_request_udma_complete_request(ireq, - SCU_TASK_DONE_CHECK_RESPONSE, - SCI_FAILURE_IO_RESPONSE_VALID); - + ireq->scu_status = SCU_TASK_DONE_CHECK_RESPONSE; + ireq->sci_status = SCI_FAILURE_IO_RESPONSE_VALID; + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); return SCI_SUCCESS; case SCI_REQ_STP_NON_DATA_WAIT_D2H: { @@ -1645,8 +1590,8 @@ sci_io_request_frame_handler(struct isci_request *ireq, frame_buffer); /* The command has completed with error */ - sci_request_set_status(ireq, SCU_TASK_DONE_CHECK_RESPONSE, - SCI_FAILURE_IO_RESPONSE_VALID); + ireq->scu_status = SCU_TASK_DONE_CHECK_RESPONSE; + ireq->sci_status = SCI_FAILURE_IO_RESPONSE_VALID; break; default: @@ -1655,8 +1600,8 @@ sci_io_request_frame_handler(struct isci_request *ireq, "violation occurred\n", __func__, stp_req, frame_index); - sci_request_set_status(ireq, SCU_TASK_DONE_UNEXP_FIS, - SCI_FAILURE_PROTOCOL_VIOLATION); + ireq->scu_status = SCU_TASK_DONE_UNEXP_FIS; + ireq->sci_status = SCI_FAILURE_PROTOCOL_VIOLATION; break; } @@ -1753,10 +1698,8 @@ sci_io_request_frame_handler(struct isci_request *ireq, frame_header, frame_buffer); - sci_request_set_status(ireq, - SCU_TASK_DONE_CHECK_RESPONSE, - SCI_FAILURE_IO_RESPONSE_VALID); - + ireq->scu_status = SCU_TASK_DONE_CHECK_RESPONSE; + ireq->sci_status = SCI_FAILURE_IO_RESPONSE_VALID; sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; @@ -1800,10 +1743,8 @@ sci_io_request_frame_handler(struct isci_request *ireq, frame_index, frame_header->fis_type); - sci_request_set_status(ireq, - SCU_TASK_DONE_GOOD, - SCI_FAILURE_IO_REQUIRES_SCSI_ABORT); - + ireq->scu_status = SCU_TASK_DONE_GOOD; + ireq->sci_status = SCI_FAILURE_IO_REQUIRES_SCSI_ABORT; sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); /* Frame is decoded return it to the controller */ @@ -1833,10 +1774,8 @@ sci_io_request_frame_handler(struct isci_request *ireq, return status; if ((stp_req->status & ATA_BUSY) == 0) { - sci_request_set_status(ireq, - SCU_TASK_DONE_CHECK_RESPONSE, - SCI_FAILURE_IO_RESPONSE_VALID); - + ireq->scu_status = SCU_TASK_DONE_CHECK_RESPONSE; + ireq->sci_status = SCI_FAILURE_IO_RESPONSE_VALID; sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); } else { sci_change_state(&ireq->sm, SCI_REQ_STP_PIO_WAIT_FRAME); @@ -1873,9 +1812,8 @@ sci_io_request_frame_handler(struct isci_request *ireq, frame_buffer); /* The command has completed with error */ - sci_request_set_status(ireq, - SCU_TASK_DONE_CHECK_RESPONSE, - SCI_FAILURE_IO_RESPONSE_VALID); + ireq->scu_status = SCU_TASK_DONE_CHECK_RESPONSE; + ireq->sci_status = SCI_FAILURE_IO_RESPONSE_VALID; break; default: @@ -1886,9 +1824,8 @@ sci_io_request_frame_handler(struct isci_request *ireq, stp_req, frame_index); - sci_request_set_status(ireq, - SCU_TASK_DONE_UNEXP_FIS, - SCI_FAILURE_PROTOCOL_VIOLATION); + ireq->scu_status = SCU_TASK_DONE_UNEXP_FIS; + ireq->sci_status = SCI_FAILURE_PROTOCOL_VIOLATION; break; } @@ -1927,9 +1864,9 @@ static enum sci_status stp_request_udma_await_tc_event(struct isci_request *ireq switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - sci_stp_request_udma_complete_request(ireq, - SCU_TASK_DONE_GOOD, - SCI_SUCCESS); + ireq->scu_status = SCU_TASK_DONE_GOOD; + ireq->sci_status = SCI_SUCCESS; + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_UNEXP_FIS): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_REG_ERR): @@ -1941,9 +1878,9 @@ static enum sci_status stp_request_udma_await_tc_event(struct isci_request *ireq sci_remote_device_suspend(ireq->target_device, SCU_EVENT_SPECIFIC(SCU_NORMALIZE_COMPLETION_STATUS(completion_code))); - sci_stp_request_udma_complete_request(ireq, - SCU_TASK_DONE_CHECK_RESPONSE, - SCI_FAILURE_IO_RESPONSE_VALID); + ireq->scu_status = SCU_TASK_DONE_CHECK_RESPONSE; + ireq->sci_status = SCI_FAILURE_IO_RESPONSE_VALID; + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); } else { /* If we have an error completion status for the * TC then we can expect a D2H register FIS from @@ -1970,9 +1907,9 @@ static enum sci_status stp_request_udma_await_tc_event(struct isci_request *ireq /* Fall through to the default case */ default: /* All other completion status cause the IO to be complete. */ - sci_stp_request_udma_complete_request(ireq, - SCU_NORMALIZE_COMPLETION_STATUS(completion_code), - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); + ireq->scu_status = SCU_NORMALIZE_COMPLETION_STATUS(completion_code); + ireq->sci_status = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR; + sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; } @@ -1985,9 +1922,8 @@ stp_request_soft_reset_await_h2d_asserted_tc_event(struct isci_request *ireq, { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - sci_request_set_status(ireq, SCU_TASK_DONE_GOOD, - SCI_SUCCESS); - + ireq->scu_status = SCU_TASK_DONE_GOOD; + ireq->sci_status = SCI_SUCCESS; sci_change_state(&ireq->sm, SCI_REQ_STP_SOFT_RESET_WAIT_H2D_DIAG); break; @@ -1997,10 +1933,8 @@ stp_request_soft_reset_await_h2d_asserted_tc_event(struct isci_request *ireq, * If a NAK was received, then it is up to the user to retry * the request. */ - sci_request_set_status(ireq, - SCU_NORMALIZE_COMPLETION_STATUS(completion_code), - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - + ireq->scu_status = SCU_NORMALIZE_COMPLETION_STATUS(completion_code); + ireq->sci_status = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR; sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; } @@ -2014,9 +1948,8 @@ stp_request_soft_reset_await_h2d_diagnostic_tc_event(struct isci_request *ireq, { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - sci_request_set_status(ireq, SCU_TASK_DONE_GOOD, - SCI_SUCCESS); - + ireq->scu_status = SCU_TASK_DONE_GOOD; + ireq->sci_status = SCI_SUCCESS; sci_change_state(&ireq->sm, SCI_REQ_STP_SOFT_RESET_WAIT_D2H); break; @@ -2025,10 +1958,8 @@ stp_request_soft_reset_await_h2d_diagnostic_tc_event(struct isci_request *ireq, * a NAK was received, then it is up to the user to retry the * request. */ - sci_request_set_status(ireq, - SCU_NORMALIZE_COMPLETION_STATUS(completion_code), - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - + ireq->scu_status = SCU_NORMALIZE_COMPLETION_STATUS(completion_code); + ireq->sci_status = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR; sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); break; } @@ -2504,7 +2435,7 @@ static void isci_request_io_request_complete(struct isci_host *ihost, completion_status); spin_lock(&request->state_lock); - request_status = isci_request_get_state(request); + request_status = request->status; /* Decode the request status. Note that if the request has been * aborted by a task management function, we don't care @@ -2904,24 +2835,21 @@ static void sci_stp_request_started_non_data_await_h2d_completion_enter(struct s { struct isci_request *ireq = container_of(sm, typeof(*ireq), sm); - sci_remote_device_set_working_request(ireq->target_device, - ireq); + ireq->target_device->working_request = ireq; } static void sci_stp_request_started_pio_await_h2d_completion_enter(struct sci_base_state_machine *sm) { struct isci_request *ireq = container_of(sm, typeof(*ireq), sm); - sci_remote_device_set_working_request(ireq->target_device, - ireq); + ireq->target_device->working_request = ireq; } static void sci_stp_request_started_soft_reset_await_h2d_asserted_completion_enter(struct sci_base_state_machine *sm) { struct isci_request *ireq = container_of(sm, typeof(*ireq), sm); - sci_remote_device_set_working_request(ireq->target_device, - ireq); + ireq->target_device->working_request = ireq; } static void sci_stp_request_started_soft_reset_await_h2d_diagnostic_completion_enter(struct sci_base_state_machine *sm) @@ -3141,8 +3069,8 @@ sci_io_request_construct_smp(struct device *dev, task_context = ireq->tc; - idev = sci_request_get_device(ireq); - iport = sci_request_get_port(ireq); + idev = ireq->target_device; + iport = idev->owning_port; /* * Fill in the TC with the its required data @@ -3151,9 +3079,8 @@ sci_io_request_construct_smp(struct device *dev, task_context->priority = 0; task_context->initiator_request = 1; task_context->connection_rate = idev->connection_rate; - task_context->protocol_engine_index = - sci_controller_get_protocol_engine_group(ihost); - task_context->logical_port_index = sci_port_get_index(iport); + task_context->protocol_engine_index = ISCI_PEG; + task_context->logical_port_index = iport->physical_port_index; task_context->protocol_type = SCU_TASK_CONTEXT_PROTOCOL_SMP; task_context->abort = 0; task_context->valid = SCU_TASK_CONTEXT_VALID; @@ -3195,11 +3122,10 @@ sci_io_request_construct_smp(struct device *dev, task_context->task_phase = 0; ireq->post_context = (SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC | - (sci_controller_get_protocol_engine_group(ihost) << - SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | - (sci_port_get_index(iport) << - SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | - ISCI_TAG_TCI(ireq->io_tag)); + (ISCI_PEG << SCU_CONTEXT_COMMAND_PROTOCOL_ENGINE_GROUP_SHIFT) | + (iport->physical_port_index << + SCU_CONTEXT_COMMAND_LOGICAL_PORT_SHIFT) | + ISCI_TAG_TCI(ireq->io_tag)); /* * Copy the physical address for the command buffer to the SCU Task * Context command buffer should not contain command header. diff --git a/drivers/scsi/isci/request.h b/drivers/scsi/isci/request.h index 08fcf98e70f..59708402781 100644 --- a/drivers/scsi/isci/request.h +++ b/drivers/scsi/isci/request.h @@ -300,58 +300,6 @@ enum sci_base_request_states { SCI_REQ_FINAL, }; -/** - * sci_request_get_controller() - - * - * This macro will return the controller for this io request object - */ -#define sci_request_get_controller(ireq) \ - ((ireq)->owning_controller) - -/** - * sci_request_get_device() - - * - * This macro will return the device for this io request object - */ -#define sci_request_get_device(ireq) \ - ((ireq)->target_device) - -/** - * sci_request_get_port() - - * - * This macro will return the port for this io request object - */ -#define sci_request_get_port(ireq) \ - sci_remote_device_get_port(sci_request_get_device(ireq)) - -/** - * sci_request_get_post_context() - - * - * This macro returns the constructed post context result for the io request. - */ -#define sci_request_get_post_context(ireq) \ - ((ireq)->post_context) - -/** - * sci_request_get_task_context() - - * - * This is a helper macro to return the os handle for this request object. - */ -#define sci_request_get_task_context(request) \ - ((request)->task_context_buffer) - -/** - * sci_request_set_status() - - * - * This macro will set the scu hardware status and sci request completion - * status for an io request. - */ -#define sci_request_set_status(request, scu_status_code, sci_status_code) \ - { \ - (request)->scu_status = (scu_status_code); \ - (request)->sci_status = (sci_status_code); \ - } - enum sci_status sci_request_start(struct isci_request *ireq); enum sci_status sci_io_request_terminate(struct isci_request *ireq); enum sci_status @@ -381,27 +329,6 @@ sci_io_request_get_dma_addr(struct isci_request *ireq, void *virt_addr) return ireq->request_daddr + (requested_addr - base_addr); } -/** - * This function gets the status of the request object. - * @request: This parameter points to the isci_request object - * - * status of the object as a isci_request_status enum. - */ -static inline enum isci_request_status -isci_request_get_state(struct isci_request *isci_request) -{ - BUG_ON(isci_request == NULL); - - /*probably a bad sign... */ - if (isci_request->status == unallocated) - dev_warn(&isci_request->isci_host->pdev->dev, - "%s: isci_request->status == unallocated\n", - __func__); - - return isci_request->status; -} - - /** * isci_request_change_state() - This function sets the status of the request * object. diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index d040aa2f372..20112cd5b64 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -654,7 +654,7 @@ static void isci_terminate_request_core(struct isci_host *ihost, * needs to be detached and freed here. */ spin_lock_irqsave(&isci_request->state_lock, flags); - request_status = isci_request_get_state(isci_request); + request_status = isci_request->status; if ((isci_request->ttype == io_task) /* TMFs are in their own thread */ && ((request_status == aborted) -- cgit v1.2.3-70-g09d2