diff options
Diffstat (limited to 'drivers/scsi/megaraid/megaraid_sas.c')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas.c | 738 |
1 files changed, 671 insertions, 67 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c index a39addc3a59..134c63ef6d3 100644 --- a/drivers/scsi/megaraid/megaraid_sas.c +++ b/drivers/scsi/megaraid/megaraid_sas.c @@ -10,7 +10,7 @@ * 2 of the License, or (at your option) any later version. * * FILE : megaraid_sas.c - * Version : v00.00.04.01-rc1 + * Version : v00.00.04.12-rc1 * * Authors: * (email-id : megaraidlinux@lsi.com) @@ -40,6 +40,7 @@ #include <linux/compat.h> #include <linux/blkdev.h> #include <linux/mutex.h> +#include <linux/poll.h> #include <scsi/scsi.h> #include <scsi/scsi_cmnd.h> @@ -75,6 +76,10 @@ static struct pci_device_id megasas_pci_table[] = { /* gen2*/ {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)}, /* gen2*/ + {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)}, + /* skinny*/ + {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)}, + /* skinny*/ {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)}, /* xscale IOP, vega */ {PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)}, @@ -89,8 +94,14 @@ static struct megasas_mgmt_info megasas_mgmt_info; static struct fasync_struct *megasas_async_queue; static DEFINE_MUTEX(megasas_async_queue_mutex); +static int megasas_poll_wait_aen; +static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait); +static u32 support_poll_for_event; static u32 megasas_dbg_lvl; +/* define lock for aen poll */ +spinlock_t poll_aen_lock; + static void megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, u8 alt_status); @@ -215,7 +226,10 @@ megasas_clear_intr_xscale(struct megasas_register_set __iomem * regs) * @regs : MFI register set */ static inline void -megasas_fire_cmd_xscale(dma_addr_t frame_phys_addr,u32 frame_count, struct megasas_register_set __iomem *regs) +megasas_fire_cmd_xscale(struct megasas_instance *instance, + dma_addr_t frame_phys_addr, + u32 frame_count, + struct megasas_register_set __iomem *regs) { writel((frame_phys_addr >> 3)|(frame_count), &(regs)->inbound_queue_port); @@ -312,7 +326,10 @@ megasas_clear_intr_ppc(struct megasas_register_set __iomem * regs) * @regs : MFI register set */ static inline void -megasas_fire_cmd_ppc(dma_addr_t frame_phys_addr, u32 frame_count, struct megasas_register_set __iomem *regs) +megasas_fire_cmd_ppc(struct megasas_instance *instance, + dma_addr_t frame_phys_addr, + u32 frame_count, + struct megasas_register_set __iomem *regs) { writel((frame_phys_addr | (frame_count<<1))|1, &(regs)->inbound_queue_port); @@ -328,6 +345,104 @@ static struct megasas_instance_template megasas_instance_template_ppc = { }; /** + * megasas_enable_intr_skinny - Enables interrupts + * @regs: MFI register set + */ +static inline void +megasas_enable_intr_skinny(struct megasas_register_set __iomem *regs) +{ + writel(0xFFFFFFFF, &(regs)->outbound_intr_mask); + + writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask); + + /* Dummy readl to force pci flush */ + readl(®s->outbound_intr_mask); +} + +/** + * megasas_disable_intr_skinny - Disables interrupt + * @regs: MFI register set + */ +static inline void +megasas_disable_intr_skinny(struct megasas_register_set __iomem *regs) +{ + u32 mask = 0xFFFFFFFF; + writel(mask, ®s->outbound_intr_mask); + /* Dummy readl to force pci flush */ + readl(®s->outbound_intr_mask); +} + +/** + * megasas_read_fw_status_reg_skinny - returns the current FW status value + * @regs: MFI register set + */ +static u32 +megasas_read_fw_status_reg_skinny(struct megasas_register_set __iomem *regs) +{ + return readl(&(regs)->outbound_scratch_pad); +} + +/** + * megasas_clear_interrupt_skinny - Check & clear interrupt + * @regs: MFI register set + */ +static int +megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs) +{ + u32 status; + /* + * Check if it is our interrupt + */ + status = readl(®s->outbound_intr_status); + + if (!(status & MFI_SKINNY_ENABLE_INTERRUPT_MASK)) { + return 1; + } + + /* + * Clear the interrupt by writing back the same value + */ + writel(status, ®s->outbound_intr_status); + + /* + * dummy read to flush PCI + */ + readl(®s->outbound_intr_status); + + return 0; +} + +/** + * megasas_fire_cmd_skinny - Sends command to the FW + * @frame_phys_addr : Physical address of cmd + * @frame_count : Number of frames for the command + * @regs : MFI register set + */ +static inline void +megasas_fire_cmd_skinny(struct megasas_instance *instance, + dma_addr_t frame_phys_addr, + u32 frame_count, + struct megasas_register_set __iomem *regs) +{ + unsigned long flags; + spin_lock_irqsave(&instance->fire_lock, flags); + writel(0, &(regs)->inbound_high_queue_port); + writel((frame_phys_addr | (frame_count<<1))|1, + &(regs)->inbound_low_queue_port); + spin_unlock_irqrestore(&instance->fire_lock, flags); +} + +static struct megasas_instance_template megasas_instance_template_skinny = { + + .fire_cmd = megasas_fire_cmd_skinny, + .enable_intr = megasas_enable_intr_skinny, + .disable_intr = megasas_disable_intr_skinny, + .clear_intr = megasas_clear_intr_skinny, + .read_fw_status_reg = megasas_read_fw_status_reg_skinny, +}; + + +/** * The following functions are defined for gen2 (deviceid : 0x78 0x79) * controllers */ @@ -404,7 +519,9 @@ megasas_clear_intr_gen2(struct megasas_register_set __iomem *regs) * @regs : MFI register set */ static inline void -megasas_fire_cmd_gen2(dma_addr_t frame_phys_addr, u32 frame_count, +megasas_fire_cmd_gen2(struct megasas_instance *instance, + dma_addr_t frame_phys_addr, + u32 frame_count, struct megasas_register_set __iomem *regs) { writel((frame_phys_addr | (frame_count<<1))|1, @@ -446,7 +563,8 @@ megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd) /* * Issue the frame using inbound queue port */ - instance->instancet->fire_cmd(cmd->frame_phys_addr ,0,instance->reg_set); + instance->instancet->fire_cmd(instance, + cmd->frame_phys_addr, 0, instance->reg_set); /* * Wait for cmd_status to change @@ -477,7 +595,8 @@ megasas_issue_blocked_cmd(struct megasas_instance *instance, { cmd->cmd_status = ENODATA; - instance->instancet->fire_cmd(cmd->frame_phys_addr ,0,instance->reg_set); + instance->instancet->fire_cmd(instance, + cmd->frame_phys_addr, 0, instance->reg_set); wait_event_timeout(instance->int_cmd_wait_q, (cmd->cmd_status != ENODATA), MEGASAS_INTERNAL_CMD_WAIT_TIME*HZ); @@ -522,7 +641,8 @@ megasas_issue_blocked_abort_cmd(struct megasas_instance *instance, cmd->sync_cmd = 1; cmd->cmd_status = 0xFF; - instance->instancet->fire_cmd(cmd->frame_phys_addr ,0,instance->reg_set); + instance->instancet->fire_cmd(instance, + cmd->frame_phys_addr, 0, instance->reg_set); /* * Wait for this cmd to complete @@ -592,6 +712,35 @@ megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp, return sge_count; } +/** + * megasas_make_sgl_skinny - Prepares IEEE SGL + * @instance: Adapter soft state + * @scp: SCSI command from the mid-layer + * @mfi_sgl: SGL to be filled in + * + * If successful, this function returns the number of SG elements. Otherwise, + * it returnes -1. + */ +static int +megasas_make_sgl_skinny(struct megasas_instance *instance, + struct scsi_cmnd *scp, union megasas_sgl *mfi_sgl) +{ + int i; + int sge_count; + struct scatterlist *os_sgl; + + sge_count = scsi_dma_map(scp); + + if (sge_count) { + scsi_for_each_sg(scp, os_sgl, sge_count, i) { + mfi_sgl->sge_skinny[i].length = sg_dma_len(os_sgl); + mfi_sgl->sge_skinny[i].phys_addr = + sg_dma_address(os_sgl); + } + } + return sge_count; +} + /** * megasas_get_frame_count - Computes the number of frames * @frame_type : type of frame- io or pthru frame @@ -600,7 +749,8 @@ megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp, * Returns the number of frames required for numnber of sge's (sge_count) */ -static u32 megasas_get_frame_count(u8 sge_count, u8 frame_type) +static u32 megasas_get_frame_count(struct megasas_instance *instance, + u8 sge_count, u8 frame_type) { int num_cnt; int sge_bytes; @@ -610,6 +760,10 @@ static u32 megasas_get_frame_count(u8 sge_count, u8 frame_type) sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) : sizeof(struct megasas_sge32); + if (instance->flag_ieee) { + sge_sz = sizeof(struct megasas_sge_skinny); + } + /* * Main frame can contain 2 SGEs for 64-bit SGLs and * 3 SGEs for 32-bit SGLs for ldio & @@ -617,12 +771,16 @@ static u32 megasas_get_frame_count(u8 sge_count, u8 frame_type) * 2 SGEs for 32-bit SGLs for pthru frame */ if (unlikely(frame_type == PTHRU_FRAME)) { - if (IS_DMA64) + if (instance->flag_ieee == 1) { + num_cnt = sge_count - 1; + } else if (IS_DMA64) num_cnt = sge_count - 1; else num_cnt = sge_count - 2; } else { - if (IS_DMA64) + if (instance->flag_ieee == 1) { + num_cnt = sge_count - 1; + } else if (IS_DMA64) num_cnt = sge_count - 2; else num_cnt = sge_count - 3; @@ -671,6 +829,10 @@ megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp, else if (scp->sc_data_direction == PCI_DMA_NONE) flags = MFI_FRAME_DIR_NONE; + if (instance->flag_ieee == 1) { + flags |= MFI_FRAME_IEEE; + } + /* * Prepare the DCDB frame */ @@ -687,9 +849,24 @@ megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp, memcpy(pthru->cdb, scp->cmnd, scp->cmd_len); /* + * If the command is for the tape device, set the + * pthru timeout to the os layer timeout value. + */ + if (scp->device->type == TYPE_TAPE) { + if ((scp->request->timeout / HZ) > 0xFFFF) + pthru->timeout = 0xFFFF; + else + pthru->timeout = scp->request->timeout / HZ; + } + + /* * Construct SGL */ - if (IS_DMA64) { + if (instance->flag_ieee == 1) { + pthru->flags |= MFI_FRAME_SGL64; + pthru->sge_count = megasas_make_sgl_skinny(instance, scp, + &pthru->sgl); + } else if (IS_DMA64) { pthru->flags |= MFI_FRAME_SGL64; pthru->sge_count = megasas_make_sgl64(instance, scp, &pthru->sgl); @@ -708,7 +885,7 @@ megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp, * Compute the total number of frames this command consumes. FW uses * this number to pull sufficient number of frames from host memory. */ - cmd->frame_count = megasas_get_frame_count(pthru->sge_count, + cmd->frame_count = megasas_get_frame_count(instance, pthru->sge_count, PTHRU_FRAME); return cmd->frame_count; @@ -739,6 +916,10 @@ megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp, else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE) flags = MFI_FRAME_DIR_READ; + if (instance->flag_ieee == 1) { + flags |= MFI_FRAME_IEEE; + } + /* * Prepare the Logical IO frame: 2nd bit is zero for all read cmds */ @@ -809,7 +990,11 @@ megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp, /* * Construct SGL */ - if (IS_DMA64) { + if (instance->flag_ieee) { + ldio->flags |= MFI_FRAME_SGL64; + ldio->sge_count = megasas_make_sgl_skinny(instance, scp, + &ldio->sgl); + } else if (IS_DMA64) { ldio->flags |= MFI_FRAME_SGL64; ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl); } else @@ -826,7 +1011,8 @@ megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp, * Compute the total number of frames this command consumes. FW uses * this number to pull sufficient number of frames from host memory. */ - cmd->frame_count = megasas_get_frame_count(ldio->sge_count, IO_FRAME); + cmd->frame_count = megasas_get_frame_count(instance, + ldio->sge_count, IO_FRAME); return cmd->frame_count; } @@ -983,7 +1169,8 @@ megasas_queue_command(struct scsi_cmnd *scmd, void (*done) (struct scsi_cmnd *)) */ atomic_inc(&instance->fw_outstanding); - instance->instancet->fire_cmd(cmd->frame_phys_addr ,cmd->frame_count-1,instance->reg_set); + instance->instancet->fire_cmd(instance, cmd->frame_phys_addr, + cmd->frame_count-1, instance->reg_set); /* * Check if we have pend cmds to be completed */ @@ -1000,24 +1187,76 @@ megasas_queue_command(struct scsi_cmnd *scmd, void (*done) (struct scsi_cmnd *)) return 0; } +static struct megasas_instance *megasas_lookup_instance(u16 host_no) +{ + int i; + + for (i = 0; i < megasas_mgmt_info.max_index; i++) { + + if ((megasas_mgmt_info.instance[i]) && + (megasas_mgmt_info.instance[i]->host->host_no == host_no)) + return megasas_mgmt_info.instance[i]; + } + + return NULL; +} + static int megasas_slave_configure(struct scsi_device *sdev) { + u16 pd_index = 0; + struct megasas_instance *instance ; + + instance = megasas_lookup_instance(sdev->host->host_no); + /* - * Don't export physical disk devices to the disk driver. - * - * FIXME: Currently we don't export them to the midlayer at all. - * That will be fixed once LSI engineers have audited the - * firmware for possible issues. - */ - if (sdev->channel < MEGASAS_MAX_PD_CHANNELS && sdev->type == TYPE_DISK) + * Don't export physical disk devices to the disk driver. + * + * FIXME: Currently we don't export them to the midlayer at all. + * That will be fixed once LSI engineers have audited the + * firmware for possible issues. + */ + if (sdev->channel < MEGASAS_MAX_PD_CHANNELS && + sdev->type == TYPE_DISK) { + pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + + sdev->id; + if (instance->pd_list[pd_index].driveState == + MR_PD_STATE_SYSTEM) { + blk_queue_rq_timeout(sdev->request_queue, + MEGASAS_DEFAULT_CMD_TIMEOUT * HZ); + return 0; + } return -ENXIO; + } /* - * The RAID firmware may require extended timeouts. - */ - if (sdev->channel >= MEGASAS_MAX_PD_CHANNELS) - blk_queue_rq_timeout(sdev->request_queue, - MEGASAS_DEFAULT_CMD_TIMEOUT * HZ); + * The RAID firmware may require extended timeouts. + */ + blk_queue_rq_timeout(sdev->request_queue, + MEGASAS_DEFAULT_CMD_TIMEOUT * HZ); + return 0; +} + +static int megasas_slave_alloc(struct scsi_device *sdev) +{ + u16 pd_index = 0; + struct megasas_instance *instance ; + instance = megasas_lookup_instance(sdev->host->host_no); + if ((sdev->channel < MEGASAS_MAX_PD_CHANNELS) && + (sdev->type == TYPE_DISK)) { + /* + * Open the OS scan to the SYSTEM PD + */ + pd_index = + (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + + sdev->id; + if ((instance->pd_list[pd_index].driveState == + MR_PD_STATE_SYSTEM) && + (instance->pd_list[pd_index].driveType == + TYPE_DISK)) { + return 0; + } + return -ENXIO; + } return 0; } @@ -1072,7 +1311,14 @@ static void megasas_complete_cmd_dpc(unsigned long instance_addr) spin_lock_irqsave(instance->host->host_lock, flags); instance->flag &= ~MEGASAS_FW_BUSY; - instance->host->can_queue = + if ((instance->pdev->device == + PCI_DEVICE_ID_LSI_SAS0073SKINNY) || + (instance->pdev->device == + PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { + instance->host->can_queue = + instance->max_fw_cmds - MEGASAS_SKINNY_INT_CMDS; + } else + instance->host->can_queue = instance->max_fw_cmds - MEGASAS_INT_CMDS; spin_unlock_irqrestore(instance->host->host_lock, flags); @@ -1117,8 +1363,16 @@ static int megasas_wait_for_outstanding(struct megasas_instance *instance) * Send signal to FW to stop processing any pending cmds. * The controller will be taken offline by the OS now. */ - writel(MFI_STOP_ADP, + if ((instance->pdev->device == + PCI_DEVICE_ID_LSI_SAS0073SKINNY) || + (instance->pdev->device == + PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { + writel(MFI_STOP_ADP, + &instance->reg_set->reserved_0[0]); + } else { + writel(MFI_STOP_ADP, &instance->reg_set->inbound_doorbell); + } megasas_dump_pending_frames(instance); instance->hw_crit_error = 1; return FAILED; @@ -1266,6 +1520,8 @@ megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev, return 0; } +static void megasas_aen_polling(struct work_struct *work); + /** * megasas_service_aen - Processes an event notification * @instance: Adapter soft state @@ -1281,16 +1537,36 @@ megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev, static void megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd) { + unsigned long flags; /* * Don't signal app if it is just an aborted previously registered aen */ - if (!cmd->abort_aen) + if ((!cmd->abort_aen) && (instance->unload == 0)) { + spin_lock_irqsave(&poll_aen_lock, flags); + megasas_poll_wait_aen = 1; + spin_unlock_irqrestore(&poll_aen_lock, flags); + wake_up(&megasas_poll_wait); kill_fasync(&megasas_async_queue, SIGIO, POLL_IN); + } else cmd->abort_aen = 0; instance->aen_cmd = NULL; megasas_return_cmd(instance, cmd); + + if (instance->unload == 0) { + struct megasas_aen_event *ev; + ev = kzalloc(sizeof(*ev), GFP_ATOMIC); + if (!ev) { + printk(KERN_ERR "megasas_service_aen: out of memory\n"); + } else { + ev->instance = instance; + instance->ev = ev; + INIT_WORK(&ev->hotplug_work, megasas_aen_polling); + schedule_delayed_work( + (struct delayed_work *)&ev->hotplug_work, 0); + } + } } /* @@ -1302,6 +1578,7 @@ static struct scsi_host_template megasas_template = { .name = "LSI SAS based MegaRAID driver", .proc_name = "megaraid_sas", .slave_configure = megasas_slave_configure, + .slave_alloc = megasas_slave_alloc, .queuecommand = megasas_queue_command, .eh_device_reset_handler = megasas_reset_device, .eh_bus_reset_handler = megasas_reset_bus_host, @@ -1370,6 +1647,7 @@ megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, { int exception = 0; struct megasas_header *hdr = &cmd->frame->hdr; + unsigned long flags; if (cmd->scmd) cmd->scmd->SCp.ptr = NULL; @@ -1459,6 +1737,12 @@ megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, case MFI_CMD_SMP: case MFI_CMD_STP: case MFI_CMD_DCMD: + if (cmd->frame->dcmd.opcode == MR_DCMD_CTRL_EVENT_GET_INFO || + cmd->frame->dcmd.opcode == MR_DCMD_CTRL_EVENT_GET) { + spin_lock_irqsave(&poll_aen_lock, flags); + megasas_poll_wait_aen = 0; + spin_unlock_irqrestore(&poll_aen_lock, flags); + } /* * See if got an event notification @@ -1536,6 +1820,7 @@ megasas_transition_to_ready(struct megasas_instance* instance) u8 max_wait; u32 fw_state; u32 cur_state; + u32 abs_state, curr_abs_state; fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) & MFI_STATE_MASK; @@ -1545,6 +1830,9 @@ megasas_transition_to_ready(struct megasas_instance* instance) while (fw_state != MFI_STATE_READY) { + abs_state = + instance->instancet->read_fw_status_reg(instance->reg_set); + switch (fw_state) { case MFI_STATE_FAULT: @@ -1556,18 +1844,36 @@ megasas_transition_to_ready(struct megasas_instance* instance) /* * Set the CLR bit in inbound doorbell */ - writel(MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, - &instance->reg_set->inbound_doorbell); + if ((instance->pdev->device == + PCI_DEVICE_ID_LSI_SAS0073SKINNY) || + (instance->pdev->device == + PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { + + writel( + MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, + &instance->reg_set->reserved_0[0]); + } else { + writel( + MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, + &instance->reg_set->inbound_doorbell); + } - max_wait = 2; + max_wait = MEGASAS_RESET_WAIT_TIME; cur_state = MFI_STATE_WAIT_HANDSHAKE; break; case MFI_STATE_BOOT_MESSAGE_PENDING: - writel(MFI_INIT_HOTPLUG, - &instance->reg_set->inbound_doorbell); + if ((instance->pdev->device == + PCI_DEVICE_ID_LSI_SAS0073SKINNY) || + (instance->pdev->device == + PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { + writel(MFI_INIT_HOTPLUG, + &instance->reg_set->reserved_0[0]); + } else + writel(MFI_INIT_HOTPLUG, + &instance->reg_set->inbound_doorbell); - max_wait = 10; + max_wait = MEGASAS_RESET_WAIT_TIME; cur_state = MFI_STATE_BOOT_MESSAGE_PENDING; break; @@ -1576,9 +1882,17 @@ megasas_transition_to_ready(struct megasas_instance* instance) * Bring it to READY state; assuming max wait 10 secs */ instance->instancet->disable_intr(instance->reg_set); - writel(MFI_RESET_FLAGS, &instance->reg_set->inbound_doorbell); + if ((instance->pdev->device == + PCI_DEVICE_ID_LSI_SAS0073SKINNY) || + (instance->pdev->device == + PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { + writel(MFI_RESET_FLAGS, + &instance->reg_set->reserved_0[0]); + } else + writel(MFI_RESET_FLAGS, + &instance->reg_set->inbound_doorbell); - max_wait = 60; + max_wait = MEGASAS_RESET_WAIT_TIME; cur_state = MFI_STATE_OPERATIONAL; break; @@ -1586,32 +1900,32 @@ megasas_transition_to_ready(struct megasas_instance* instance) /* * This state should not last for more than 2 seconds */ - max_wait = 2; + max_wait = MEGASAS_RESET_WAIT_TIME; cur_state = MFI_STATE_UNDEFINED; break; case MFI_STATE_BB_INIT: - max_wait = 2; + max_wait = MEGASAS_RESET_WAIT_TIME; cur_state = MFI_STATE_BB_INIT; break; case MFI_STATE_FW_INIT: - max_wait = 20; + max_wait = MEGASAS_RESET_WAIT_TIME; cur_state = MFI_STATE_FW_INIT; break; case MFI_STATE_FW_INIT_2: - max_wait = 20; + max_wait = MEGASAS_RESET_WAIT_TIME; cur_state = MFI_STATE_FW_INIT_2; break; case MFI_STATE_DEVICE_SCAN: - max_wait = 20; + max_wait = MEGASAS_RESET_WAIT_TIME; cur_state = MFI_STATE_DEVICE_SCAN; break; case MFI_STATE_FLUSH_CACHE: - max_wait = 20; + max_wait = MEGASAS_RESET_WAIT_TIME; cur_state = MFI_STATE_FLUSH_CACHE; break; @@ -1627,8 +1941,10 @@ megasas_transition_to_ready(struct megasas_instance* instance) for (i = 0; i < (max_wait * 1000); i++) { fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) & MFI_STATE_MASK ; + curr_abs_state = + instance->instancet->read_fw_status_reg(instance->reg_set); - if (fw_state == cur_state) { + if (abs_state == curr_abs_state) { msleep(1); } else break; @@ -1637,7 +1953,7 @@ megasas_transition_to_ready(struct megasas_instance* instance) /* * Return error if fw_state hasn't changed after max_wait */ - if (fw_state == cur_state) { + if (curr_abs_state == abs_state) { printk(KERN_DEBUG "FW state [%d] hasn't changed " "in %d secs\n", fw_state, max_wait); return -ENODEV; @@ -1715,6 +2031,10 @@ static int megasas_create_frame_pool(struct megasas_instance *instance) sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) : sizeof(struct megasas_sge32); + if (instance->flag_ieee) { + sge_sz = sizeof(struct megasas_sge_skinny); + } + /* * Calculated the number of 64byte frames required for SGL */ @@ -1777,6 +2097,7 @@ static int megasas_create_frame_pool(struct megasas_instance *instance) } cmd->frame->io.context = cmd->index; + cmd->frame->io.pad_0 = 0; } return 0; @@ -1882,6 +2203,97 @@ static int megasas_alloc_cmds(struct megasas_instance *instance) return 0; } +/* + * megasas_get_pd_list_info - Returns FW's pd_list structure + * @instance: Adapter soft state + * @pd_list: pd_list structure + * + * Issues an internal command (DCMD) to get the FW's controller PD + * list structure. This information is mainly used to find out SYSTEM + * supported by the FW. + */ +static int +megasas_get_pd_list(struct megasas_instance *instance) +{ + int ret = 0, pd_index = 0; + struct megasas_cmd *cmd; + struct megasas_dcmd_frame *dcmd; + struct MR_PD_LIST *ci; + struct MR_PD_ADDRESS *pd_addr; + dma_addr_t ci_h = 0; + + cmd = megasas_get_cmd(instance); + + if (!cmd) { + printk(KERN_DEBUG "megasas (get_pd_list): Failed to get cmd\n"); + return -ENOMEM; + } + + dcmd = &cmd->frame->dcmd; + + ci = pci_alloc_consistent(instance->pdev, + MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), &ci_h); + + if (!ci) { + printk(KERN_DEBUG "Failed to alloc mem for pd_list\n"); + megasas_return_cmd(instance, cmd); + return -ENOMEM; + } + + memset(ci, 0, sizeof(*ci)); + memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); + + dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST; + dcmd->mbox.b[1] = 0; + dcmd->cmd = MFI_CMD_DCMD; + dcmd->cmd_status = 0xFF; + dcmd->sge_count = 1; + dcmd->flags = MFI_FRAME_DIR_READ; + dcmd->timeout = 0; + dcmd->data_xfer_len = MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST); + dcmd->opcode = MR_DCMD_PD_LIST_QUERY; + dcmd->sgl.sge32[0].phys_addr = ci_h; + dcmd->sgl.sge32[0].length = MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST); + + if (!megasas_issue_polled(instance, cmd)) { + ret = 0; + } else { + ret = -1; + } + + /* + * the following function will get the instance PD LIST. + */ + + pd_addr = ci->addr; + + if ( ret == 0 && + (ci->count < + (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL))) { + + memset(instance->pd_list, 0, + MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)); + + for (pd_index = 0; pd_index < ci->count; pd_index++) { + + instance->pd_list[pd_addr->deviceId].tid = + pd_addr->deviceId; + instance->pd_list[pd_addr->deviceId].driveType = + pd_addr->scsiDevType; + instance->pd_list[pd_addr->deviceId].driveState = + MR_PD_STATE_SYSTEM; + pd_addr++; + } + } + + pci_free_consistent(instance->pdev, + MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), + ci, ci_h); + megasas_return_cmd(instance, cmd); + + return ret; +} + /** * megasas_get_controller_info - Returns FW's controller structure * @instance: Adapter soft state @@ -2081,6 +2493,8 @@ static int megasas_init_mfi(struct megasas_instance *instance) * Map the message registers */ if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1078GEN2) || + (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) || + (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0079GEN2)) { instance->base_addr = pci_resource_start(instance->pdev, 1); } else { @@ -2111,6 +2525,10 @@ static int megasas_init_mfi(struct megasas_instance *instance) case PCI_DEVICE_ID_LSI_SAS0079GEN2: instance->instancet = &megasas_instance_template_gen2; break; + case PCI_DEVICE_ID_LSI_SAS0073SKINNY: + case PCI_DEVICE_ID_LSI_SAS0071SKINNY: + instance->instancet = &megasas_instance_template_skinny; + break; case PCI_DEVICE_ID_LSI_SAS1064R: case PCI_DEVICE_ID_DELL_PERC5: default: @@ -2166,6 +2584,10 @@ static int megasas_init_mfi(struct megasas_instance *instance) if (megasas_issue_init_mfi(instance)) goto fail_fw_init; + memset(instance->pd_list, 0 , + (MEGASAS_MAX_PD * sizeof(struct megasas_pd_list))); + megasas_get_pd_list(instance); + ctrl_info = kmalloc(sizeof(struct megasas_ctrl_info), GFP_KERNEL); /* @@ -2409,6 +2831,11 @@ megasas_register_aen(struct megasas_instance *instance, u32 seq_num, dcmd->sgl.sge32[0].phys_addr = (u32) instance->evt_detail_h; dcmd->sgl.sge32[0].length = sizeof(struct megasas_evt_detail); + if (instance->aen_cmd != NULL) { + megasas_return_cmd(instance, cmd); + return 0; + } + /* * Store reference to the cmd used to register for AEN. When an * application wants us to register for AEN, we have to abort this @@ -2419,7 +2846,8 @@ megasas_register_aen(struct megasas_instance *instance, u32 seq_num, /* * Issue the aen registration frame */ - instance->instancet->fire_cmd(cmd->frame_phys_addr ,0,instance->reg_set); + instance->instancet->fire_cmd(instance, + cmd->frame_phys_addr, 0, instance->reg_set); return 0; } @@ -2465,7 +2893,13 @@ static int megasas_io_attach(struct megasas_instance *instance) */ host->irq = instance->pdev->irq; host->unique_id = instance->unique_id; - host->can_queue = instance->max_fw_cmds - MEGASAS_INT_CMDS; + if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || + (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { + host->can_queue = + instance->max_fw_cmds - MEGASAS_SKINNY_INT_CMDS; + } else + host->can_queue = + instance->max_fw_cmds - MEGASAS_INT_CMDS; host->this_id = instance->init_id; host->sg_tablesize = instance->max_num_sge; host->max_sectors = instance->max_sectors_per_req; @@ -2572,6 +3006,9 @@ megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) *instance->producer = 0; *instance->consumer = 0; + megasas_poll_wait_aen = 0; + instance->flag_ieee = 0; + instance->ev = NULL; instance->evt_detail = pci_alloc_consistent(pdev, sizeof(struct @@ -2595,10 +3032,11 @@ megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) init_waitqueue_head(&instance->abort_cmd_wait_q); spin_lock_init(&instance->cmd_pool_lock); + spin_lock_init(&instance->fire_lock); spin_lock_init(&instance->completion_lock); + spin_lock_init(&poll_aen_lock); mutex_init(&instance->aen_mutex); - sema_init(&instance->ioctl_sem, MEGASAS_INT_CMDS); /* * Initialize PCI related and misc parameters @@ -2608,8 +3046,16 @@ megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) instance->unique_id = pdev->bus->number << 8 | pdev->devfn; instance->init_id = MEGASAS_DEFAULT_INIT_ID; + if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || + (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { + instance->flag_ieee = 1; + sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS); + } else + sema_init(&instance->ioctl_sem, MEGASAS_INT_CMDS); + megasas_dbg_lvl = 0; instance->flag = 0; + instance->unload = 1; instance->last_time = 0; /* @@ -2655,6 +3101,7 @@ megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) if (megasas_io_attach(instance)) goto fail_io_attach; + instance->unload = 0; return 0; fail_start_aen: @@ -2778,12 +3225,23 @@ megasas_suspend(struct pci_dev *pdev, pm_message_t state) instance = pci_get_drvdata(pdev); host = instance->host; + instance->unload = 1; if (poll_mode_io) del_timer_sync(&instance->io_completion_timer); megasas_flush_cache(instance); megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN); + + /* cancel the delayed work if this work still in queue */ + if (instance->ev != NULL) { + struct megasas_aen_event *ev = instance->ev; + cancel_delayed_work( + (struct delayed_work *)&ev->hotplug_work); + flush_scheduled_work(); + instance->ev = NULL; + } + tasklet_kill(&instance->isr_tasklet); pci_set_drvdata(instance->pdev, instance); @@ -2873,6 +3331,8 @@ megasas_resume(struct pci_dev *pdev) megasas_start_timer(instance, &instance->io_completion_timer, megasas_io_completion_timer, MEGASAS_COMPLETION_TIMER_INTERVAL); + instance->unload = 0; + return 0; fail_irq: @@ -2913,6 +3373,7 @@ static void __devexit megasas_detach_one(struct pci_dev *pdev) struct megasas_instance *instance; instance = pci_get_drvdata(pdev); + instance->unload = 1; host = instance->host; if (poll_mode_io) @@ -2921,6 +3382,16 @@ static void __devexit megasas_detach_one(struct pci_dev *pdev) scsi_remove_host(instance->host); megasas_flush_cache(instance); megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); + + /* cancel the delayed work if this work still in queue*/ + if (instance->ev != NULL) { + struct megasas_aen_event *ev = instance->ev; + cancel_delayed_work( + (struct delayed_work *)&ev->hotplug_work); + flush_scheduled_work(); + instance->ev = NULL; + } + tasklet_kill(&instance->isr_tasklet); /* @@ -2969,6 +3440,7 @@ static void __devexit megasas_detach_one(struct pci_dev *pdev) static void megasas_shutdown(struct pci_dev *pdev) { struct megasas_instance *instance = pci_get_drvdata(pdev); + instance->unload = 1; megasas_flush_cache(instance); megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); } @@ -3016,6 +3488,23 @@ static int megasas_mgmt_fasync(int fd, struct file *filep, int mode) } /** + * megasas_mgmt_poll - char node "poll" entry point + * */ +static unsigned int megasas_mgmt_poll(struct file *file, poll_table *wait) +{ + unsigned int mask; + unsigned long flags; + poll_wait(file, &megasas_poll_wait, wait); + spin_lock_irqsave(&poll_aen_lock, flags); + if (megasas_poll_wait_aen) + mask = (POLLIN | POLLRDNORM); + else + mask = 0; + spin_unlock_irqrestore(&poll_aen_lock, flags); + return mask; +} + +/** * megasas_mgmt_fw_ioctl - Issues management ioctls to FW * @instance: Adapter soft state * @argp: User's ioctl packet @@ -3032,7 +3521,7 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance, int error = 0, i; void *sense = NULL; dma_addr_t sense_handle; - u32 *sense_ptr; + unsigned long *sense_ptr; memset(kbuff_arr, 0, sizeof(kbuff_arr)); @@ -3056,6 +3545,7 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance, */ memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE); cmd->frame->hdr.context = cmd->index; + cmd->frame->hdr.pad_0 = 0; /* * The management interface between applications and the fw uses @@ -3109,7 +3599,7 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance, } sense_ptr = - (u32 *) ((unsigned long)cmd->frame + ioc->sense_off); + (unsigned long *) ((unsigned long)cmd->frame + ioc->sense_off); *sense_ptr = sense_handle; } @@ -3140,8 +3630,8 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance, * sense_ptr points to the location that has the user * sense buffer address */ - sense_ptr = (u32 *) ((unsigned long)ioc->frame.raw + - ioc->sense_off); + sense_ptr = (unsigned long *) ((unsigned long)ioc->frame.raw + + ioc->sense_off); if (copy_to_user((void __user *)((unsigned long)(*sense_ptr)), sense, ioc->sense_len)) { @@ -3177,20 +3667,6 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance, return error; } -static struct megasas_instance *megasas_lookup_instance(u16 host_no) -{ - int i; - - for (i = 0; i < megasas_mgmt_info.max_index; i++) { - - if ((megasas_mgmt_info.instance[i]) && - (megasas_mgmt_info.instance[i]->host->host_no == host_no)) - return megasas_mgmt_info.instance[i]; - } - - return NULL; -} - static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg) { struct megasas_iocpacket __user *user_ioc = @@ -3214,6 +3690,17 @@ static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg) goto out_kfree_ioc; } + if (instance->hw_crit_error == 1) { + printk(KERN_DEBUG "Controller in Crit ERROR\n"); + error = -ENODEV; + goto out_kfree_ioc; + } + + if (instance->unload == 1) { + error = -ENODEV; + goto out_kfree_ioc; + } + /* * We will allow only MEGASAS_INT_CMDS number of parallel ioctl cmds */ @@ -3249,6 +3736,14 @@ static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg) if (!instance) return -ENODEV; + if (instance->hw_crit_error == 1) { + error = -ENODEV; + } + + if (instance->unload == 1) { + return -ENODEV; + } + mutex_lock(&instance->aen_mutex); error = megasas_register_aen(instance, aen.seq_num, aen.class_locale_word); @@ -3337,6 +3832,7 @@ static const struct file_operations megasas_mgmt_fops = { .open = megasas_mgmt_open, .fasync = megasas_mgmt_fasync, .unlocked_ioctl = megasas_mgmt_ioctl, + .poll = megasas_mgmt_poll, #ifdef CONFIG_COMPAT .compat_ioctl = megasas_mgmt_compat_ioctl, #endif @@ -3378,6 +3874,15 @@ static DRIVER_ATTR(release_date, S_IRUGO, megasas_sysfs_show_release_date, NULL); static ssize_t +megasas_sysfs_show_support_poll_for_event(struct device_driver *dd, char *buf) +{ + return sprintf(buf, "%u\n", support_poll_for_event); +} + +static DRIVER_ATTR(support_poll_for_event, S_IRUGO, + megasas_sysfs_show_support_poll_for_event, NULL); + +static ssize_t megasas_sysfs_show_dbg_lvl(struct device_driver *dd, char *buf) { return sprintf(buf, "%u\n", megasas_dbg_lvl); @@ -3451,6 +3956,92 @@ out: return retval; } +static void +megasas_aen_polling(struct work_struct *work) +{ + struct megasas_aen_event *ev = + container_of(work, struct megasas_aen_event, hotplug_work); + struct megasas_instance *instance = ev->instance; + union megasas_evt_class_locale class_locale; + struct Scsi_Host *host; + struct scsi_device *sdev1; + u16 pd_index = 0; + int i, j, doscan = 0; + u32 seq_num; + int error; + + if (!instance) { + printk(KERN_ERR "invalid instance!\n"); + kfree(ev); + return; + } + instance->ev = NULL; + host = instance->host; + if (instance->evt_detail) { + + switch (instance->evt_detail->code) { + case MR_EVT_PD_INSERTED: + case MR_EVT_PD_REMOVED: + case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED: + doscan = 1; + break; + default: + doscan = 0; + break; + } + } else { + printk(KERN_ERR "invalid evt_detail!\n"); + kfree(ev); + return; + } + + if (doscan) { + printk(KERN_INFO "scanning ...\n"); + megasas_get_pd_list(instance); + for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) { + for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { + pd_index = i*MEGASAS_MAX_DEV_PER_CHANNEL + j; + sdev1 = scsi_device_lookup(host, i, j, 0); + if (instance->pd_list[pd_index].driveState == + MR_PD_STATE_SYSTEM) { + if (!sdev1) { + scsi_add_device(host, i, j, 0); + } + if (sdev1) + scsi_device_put(sdev1); + } else { + if (sdev1) { + scsi_remove_device(sdev1); + scsi_device_put(sdev1); + } + } + } + } + } + + if ( instance->aen_cmd != NULL ) { + kfree(ev); + return ; + } + + seq_num = instance->evt_detail->seq_num + 1; + + /* Register AEN with FW for latest sequence number plus 1 */ + class_locale.members.reserved = 0; + class_locale.members.locale = MR_EVT_LOCALE_ALL; + class_locale.members.class = MR_EVT_CLASS_DEBUG; + mutex_lock(&instance->aen_mutex); + error = megasas_register_aen(instance, seq_num, + class_locale.word); + mutex_unlock(&instance->aen_mutex); + + if (error) + printk(KERN_ERR "register aen failed error %x\n", error); + + kfree(ev); +} + + static DRIVER_ATTR(poll_mode_io, S_IRUGO|S_IWUGO, megasas_sysfs_show_poll_mode_io, megasas_sysfs_set_poll_mode_io); @@ -3468,6 +4059,8 @@ static int __init megasas_init(void) printk(KERN_INFO "megasas: %s %s\n", MEGASAS_VERSION, MEGASAS_EXT_VERSION); + support_poll_for_event = 2; + memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info)); /* @@ -3500,6 +4093,12 @@ static int __init megasas_init(void) &driver_attr_release_date); if (rval) goto err_dcf_rel_date; + + rval = driver_create_file(&megasas_pci_driver.driver, + &driver_attr_support_poll_for_event); + if (rval) + goto err_dcf_support_poll_for_event; + rval = driver_create_file(&megasas_pci_driver.driver, &driver_attr_dbg_lvl); if (rval) @@ -3516,7 +4115,12 @@ err_dcf_poll_mode_io: &driver_attr_dbg_lvl); err_dcf_dbg_lvl: driver_remove_file(&megasas_pci_driver.driver, + &driver_attr_support_poll_for_event); + +err_dcf_support_poll_for_event: + driver_remove_file(&megasas_pci_driver.driver, &driver_attr_release_date); + err_dcf_rel_date: driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); err_dcf_attr_ver: |