diff options
| -rw-r--r-- | drivers/scsi/isci/port.c | 409 | ||||
| -rw-r--r-- | drivers/scsi/isci/port.h | 57 |
2 files changed, 210 insertions, 256 deletions
diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index e386066825b2..2ea3d0fe091d 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 ea41dcead3ae..e63c34d02b7d 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; - }; @@ -229,35 +224,6 @@ struct scic_port_properties { }; /** - * 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. * @@ -287,6 +253,25 @@ 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 * port. |