diff options
| -rw-r--r-- | drivers/scsi/isci/host.c | 2 | ||||
| -rw-r--r-- | drivers/scsi/isci/port.c | 180 | ||||
| -rw-r--r-- | drivers/scsi/isci/port.h | 8 |
3 files changed, 80 insertions, 110 deletions
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 @@ -1480,12 +1480,6 @@ static enum sci_status default_port_handler(struct scic_sds_port *sci_port, } 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__); @@ -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 @@ -313,12 +313,6 @@ typedef enum sci_status (*scic_sds_port_io_request_handler_t)(struct scic_sds_po 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); |