diff options
| -rw-r--r-- | drivers/scsi/isci/remote_device.c | 86 | ||||
| -rw-r--r-- | drivers/scsi/isci/remote_device.h | 4 | ||||
| -rw-r--r-- | drivers/scsi/isci/remote_node_context.c | 74 | ||||
| -rw-r--r-- | drivers/scsi/isci/remote_node_context.h | 13 | ||||
| -rw-r--r-- | drivers/scsi/isci/request.c | 149 | ||||
| -rw-r--r-- | drivers/scsi/isci/request.h | 1 | ||||
| -rw-r--r-- | drivers/scsi/isci/scu_completion_codes.h | 2 |
7 files changed, 242 insertions, 87 deletions
diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index 71f509064737..b1a8000a5ef8 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -265,20 +265,12 @@ enum sci_status sci_remote_device_reset_complete(struct isci_remote_device *idev return SCI_SUCCESS; } -enum sci_status sci_remote_device_suspend(struct isci_remote_device *idev, - u32 suspend_type) +enum sci_status sci_remote_device_suspend(struct isci_remote_device *idev) { - struct sci_base_state_machine *sm = &idev->sm; - 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: %s\n", - __func__, dev_state_name(state)); - return SCI_FAILURE_INVALID_STATE; - } - return sci_remote_node_context_suspend(&idev->rnc, - suspend_type, NULL, NULL); + SCI_SOFTWARE_SUSPENSION, + SCI_SOFTWARE_SUSPEND_EXPECTED_EVENT, + NULL, NULL); } enum sci_status sci_remote_device_frame_handler(struct isci_remote_device *idev, @@ -412,8 +404,6 @@ static void atapi_remote_device_resume_done(void *_dev) 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 sci_remote_device_states state = sm->current_state_id; enum sci_status status; switch (scu_get_event_type(event_code)) { @@ -427,9 +417,11 @@ enum sci_status sci_remote_device_event_handler(struct isci_remote_device *idev, status = SCI_SUCCESS; /* Suspend the associated RNC */ - sci_remote_node_context_suspend(&idev->rnc, - SCI_SOFTWARE_SUSPENSION, - NULL, NULL); + sci_remote_node_context_suspend( + &idev->rnc, + SCI_SOFTWARE_SUSPENSION, + SCI_SOFTWARE_SUSPEND_EXPECTED_EVENT, + NULL, NULL); dev_dbg(scirdev_to_dev(idev), "%s: device: %p event code: %x: %s\n", @@ -455,26 +447,6 @@ enum sci_status sci_remote_device_event_handler(struct isci_remote_device *idev, if (status != SCI_SUCCESS) return status; - if (state == SCI_STP_DEV_ATAPI_ERROR) { - /* For ATAPI error state resume the RNC right away. */ - 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) { - return sci_remote_node_context_resume(&idev->rnc, - atapi_remote_device_resume_done, - idev); - } - } - - if (state == SCI_STP_DEV_IDLE) { - - /* We pick up suspension events to handle specifically to this - * state. We resume the RNC right away. - */ - 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 = sci_remote_node_context_resume(&idev->rnc, NULL, NULL); - } - return status; } @@ -765,11 +737,11 @@ enum sci_status sci_remote_device_start_task(struct isci_host *ihost, * the correct action when the remote node context is suspended * and later resumed. */ - sci_remote_node_context_suspend(&idev->rnc, - SCI_SOFTWARE_SUSPENSION, NULL, NULL); - sci_remote_node_context_resume(&idev->rnc, - sci_remote_device_continue_request, - idev); + sci_remote_node_context_suspend( + &idev->rnc, SCI_SOFTWARE_SUSPENSION, + SCI_SOFTWARE_SUSPEND_EXPECTED_EVENT, NULL, NULL); + sci_remote_node_context_resume( + &idev->rnc, sci_remote_device_continue_request, idev); out: sci_remote_device_start_request(idev, ireq, status); @@ -954,14 +926,23 @@ static void sci_remote_device_ready_state_exit(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); + struct isci_host *ihost = idev->owning_port->owning_controller; + + dev_dbg(&ihost->pdev->dev, + "%s: isci_device = %p\n", __func__, idev); sci_remote_node_context_suspend( - &idev->rnc, SCI_SOFTWARE_SUSPENSION, NULL, NULL); + &idev->rnc, SCI_SOFTWARE_SUSPENSION, + SCI_SOFTWARE_SUSPEND_EXPECTED_EVENT, NULL, NULL); } 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); + struct isci_host *ihost = idev->owning_port->owning_controller; + + dev_dbg(&ihost->pdev->dev, + "%s: isci_device = %p\n", __func__, idev); sci_remote_node_context_resume(&idev->rnc, NULL, NULL); } @@ -1004,6 +985,21 @@ static void sci_stp_remote_device_ready_ncq_error_substate_enter(struct sci_base idev->not_ready_reason); } +static void sci_stp_remote_device_atapi_error_substate_enter( + struct sci_base_state_machine *sm) +{ + struct isci_remote_device *idev = container_of(sm, typeof(*idev), sm); + + /* This state is entered when an I/O is decoded with an error + * condition. By this point the RNC expected suspension state is set. + * The error conditions suspend the device, so unsuspend here if + * possible. + */ + sci_remote_node_context_resume(&idev->rnc, + atapi_remote_device_resume_done, + idev); +} + 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); @@ -1054,7 +1050,9 @@ static const struct sci_base_state sci_remote_device_state_table[] = { [SCI_STP_DEV_NCQ_ERROR] = { .enter_state = sci_stp_remote_device_ready_ncq_error_substate_enter, }, - [SCI_STP_DEV_ATAPI_ERROR] = { }, + [SCI_STP_DEV_ATAPI_ERROR] = { + .enter_state = sci_stp_remote_device_atapi_error_substate_enter, + }, [SCI_STP_DEV_AWAIT_RESET] = { }, [SCI_SMP_DEV_IDLE] = { .enter_state = sci_smp_remote_device_ready_idle_substate_enter, diff --git a/drivers/scsi/isci/remote_device.h b/drivers/scsi/isci/remote_device.h index 4850b58edbe6..39159053b7ff 100644 --- a/drivers/scsi/isci/remote_device.h +++ b/drivers/scsi/isci/remote_device.h @@ -331,10 +331,6 @@ enum sci_status sci_remote_device_complete_io( struct isci_remote_device *idev, struct isci_request *ireq); -enum sci_status sci_remote_device_suspend( - struct isci_remote_device *idev, - u32 suspend_type); - void sci_remote_device_post_request( struct isci_remote_device *idev, u32 request); diff --git a/drivers/scsi/isci/remote_node_context.c b/drivers/scsi/isci/remote_node_context.c index 3e849752bffa..f180c726c5bb 100644 --- a/drivers/scsi/isci/remote_node_context.c +++ b/drivers/scsi/isci/remote_node_context.c @@ -367,6 +367,7 @@ enum sci_status sci_remote_node_context_event_handler(struct sci_remote_node_con u32 event_code) { enum scis_sds_remote_node_context_states state; + u32 next_state; state = sci_rnc->sm.current_state_id; switch (state) { @@ -425,11 +426,11 @@ enum sci_status sci_remote_node_context_event_handler(struct sci_remote_node_con switch (scu_get_event_type(event_code)) { case SCU_EVENT_TL_RNC_SUSPEND_TX: sci_change_state(&sci_rnc->sm, SCI_RNC_TX_SUSPENDED); - sci_rnc->suspension_code = scu_get_event_specifier(event_code); + sci_rnc->suspend_type = scu_get_event_type(event_code); break; case SCU_EVENT_TL_RNC_SUSPEND_TX_RX: sci_change_state(&sci_rnc->sm, SCI_RNC_TX_RX_SUSPENDED); - sci_rnc->suspension_code = scu_get_event_specifier(event_code); + sci_rnc->suspend_type = scu_get_event_type(event_code); break; default: goto out; @@ -438,16 +439,16 @@ enum sci_status sci_remote_node_context_event_handler(struct sci_remote_node_con case SCI_RNC_AWAIT_SUSPENSION: switch (scu_get_event_type(event_code)) { case SCU_EVENT_TL_RNC_SUSPEND_TX: - sci_change_state(&sci_rnc->sm, SCI_RNC_TX_SUSPENDED); - sci_rnc->suspension_code = scu_get_event_specifier(event_code); + next_state = SCI_RNC_TX_SUSPENDED; break; case SCU_EVENT_TL_RNC_SUSPEND_TX_RX: - sci_change_state(&sci_rnc->sm, SCI_RNC_TX_RX_SUSPENDED); - sci_rnc->suspension_code = scu_get_event_specifier(event_code); + next_state = SCI_RNC_TX_RX_SUSPENDED; break; default: goto out; } + if (sci_rnc->suspend_type == scu_get_event_type(event_code)) + sci_change_state(&sci_rnc->sm, next_state); break; default: dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), @@ -502,33 +503,60 @@ enum sci_status sci_remote_node_context_destruct(struct sci_remote_node_context } } -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 sci_remote_node_context_suspend( + struct sci_remote_node_context *sci_rnc, + enum sci_remote_node_suspension_reasons suspend_reason, + u32 suspend_type, + scics_sds_remote_node_context_callback cb_fn, + void *cb_p) { - enum scis_sds_remote_node_context_states state; + enum scis_sds_remote_node_context_states state + = sci_rnc->sm.current_state_id; + struct isci_remote_device *idev = rnc_to_dev(sci_rnc); + enum sci_status status = SCI_FAILURE_INVALID_STATE; - state = sci_rnc->sm.current_state_id; - if (state != SCI_RNC_READY) { + /* Disable automatic state continuations if explicitly suspending. */ + if (suspend_reason == SCI_SOFTWARE_SUSPENSION) + sci_rnc->destination_state + = SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED; + switch (state) { + case SCI_RNC_READY: + break; + case SCI_RNC_TX_SUSPENDED: + if (suspend_type == SCU_EVENT_TL_RNC_SUSPEND_TX) + status = SCI_SUCCESS; + break; + case SCI_RNC_TX_RX_SUSPENDED: + if (suspend_type == SCU_EVENT_TL_RNC_SUSPEND_TX_RX) + status = SCI_SUCCESS; + break; + case SCI_RNC_AWAIT_SUSPENSION: + if ((sci_rnc->suspend_type == SCU_EVENT_TL_RNC_SUSPEND_TX_RX) + || (suspend_type == sci_rnc->suspend_type)) + return SCI_SUCCESS; + break; + default: dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)), "%s: invalid state %s\n", __func__, rnc_state_name(state)); return SCI_FAILURE_INVALID_STATE; } + sci_rnc->user_callback = cb_fn; + sci_rnc->user_cookie = cb_p; + sci_rnc->suspend_type = suspend_type; - sci_rnc->user_callback = cb_fn; - sci_rnc->user_cookie = cb_p; - sci_rnc->suspension_code = suspend_type; - - if (suspend_type == SCI_SOFTWARE_SUSPENSION) { - sci_remote_device_post_request(rnc_to_dev(sci_rnc), - SCU_CONTEXT_COMMAND_POST_RNC_SUSPEND_TX); - isci_dev_set_hang_detection_timeout(rnc_to_dev(sci_rnc), - 0x00000001); + if (status == SCI_SUCCESS) { /* Already in the destination state? */ + sci_remote_node_context_notify_user(sci_rnc); + return SCI_SUCCESS; + } + if (suspend_reason == SCI_SOFTWARE_SUSPENSION) { + isci_dev_set_hang_detection_timeout(idev, 0x00000001); + sci_remote_device_post_request( + idev, SCI_SOFTWARE_SUSPEND_CMD); } + if (state != SCI_RNC_AWAIT_SUSPENSION) + sci_change_state(&sci_rnc->sm, SCI_RNC_AWAIT_SUSPENSION); - sci_change_state(&sci_rnc->sm, SCI_RNC_AWAIT_SUSPENSION); return SCI_SUCCESS; } diff --git a/drivers/scsi/isci/remote_node_context.h b/drivers/scsi/isci/remote_node_context.h index a241e0f4c865..276fc491e8f9 100644 --- a/drivers/scsi/isci/remote_node_context.h +++ b/drivers/scsi/isci/remote_node_context.h @@ -75,8 +75,12 @@ */ #define SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX 0x0FFF -#define SCU_HARDWARE_SUSPENSION (0) -#define SCI_SOFTWARE_SUSPENSION (1) +enum sci_remote_node_suspension_reasons { + SCU_HARDWARE_SUSPENSION, + SCI_SOFTWARE_SUSPENSION +}; +#define SCI_SOFTWARE_SUSPEND_CMD SCU_CONTEXT_COMMAND_POST_RNC_SUSPEND_TX_RX +#define SCI_SOFTWARE_SUSPEND_EXPECTED_EVENT SCU_EVENT_TL_RNC_SUSPEND_TX_RX struct isci_request; struct isci_remote_device; @@ -156,10 +160,10 @@ struct sci_remote_node_context { u16 remote_node_index; /** - * This field is the recored suspension code or the reason for the remote node + * This field is the recored suspension type of the remote node * context suspension. */ - u32 suspension_code; + u32 suspend_type; /** * This field is true if the remote node context is resuming from its current @@ -200,6 +204,7 @@ enum sci_status sci_remote_node_context_destruct(struct sci_remote_node_context void *callback_parameter); enum sci_status sci_remote_node_context_suspend(struct sci_remote_node_context *sci_rnc, u32 suspend_type, + u32 suspension_code, scics_sds_remote_node_context_callback cb_fn, void *cb_p); enum sci_status sci_remote_node_context_resume(struct sci_remote_node_context *sci_rnc, diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index dcd26eadf867..605dc68cbf79 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -2116,9 +2116,6 @@ static enum sci_status stp_request_udma_await_tc_event(struct isci_request *ireq * completion. */ if (ireq->stp.rsp.fis_type == FIS_REGD2H) { - sci_remote_device_suspend(ireq->target_device, - SCU_EVENT_SPECIFIC(SCU_NORMALIZE_COMPLETION_STATUS(completion_code))); - ireq->scu_status = SCU_TASK_DONE_CHECK_RESPONSE; ireq->sci_status = SCI_FAILURE_IO_RESPONSE_VALID; sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); @@ -2138,13 +2135,6 @@ static enum sci_status stp_request_udma_await_tc_event(struct isci_request *ireq /* TODO We can retry the command for SCU_TASK_DONE_CMD_LL_R_ERR * - this comes only for B0 */ - case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_INV_FIS_LEN): - case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_MAX_PLD_ERR): - case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_LL_R_ERR): - case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_CMD_LL_R_ERR): - 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. */ ireq->scu_status = SCU_NORMALIZE_COMPLETION_STATUS(completion_code); @@ -2262,15 +2252,152 @@ static enum sci_status atapi_data_tc_completion_handler(struct isci_request *ire return status; } +static int sci_request_smp_completion_status_is_tx_suspend( + unsigned int completion_status) +{ + switch (completion_status) { + case SCU_TASK_OPEN_REJECT_WRONG_DESTINATION: + case SCU_TASK_OPEN_REJECT_RESERVED_ABANDON_1: + case SCU_TASK_OPEN_REJECT_RESERVED_ABANDON_2: + case SCU_TASK_OPEN_REJECT_RESERVED_ABANDON_3: + case SCU_TASK_OPEN_REJECT_BAD_DESTINATION: + case SCU_TASK_OPEN_REJECT_ZONE_VIOLATION: + return 1; + } + return 0; +} + +static int sci_request_smp_completion_status_is_tx_rx_suspend( + unsigned int completion_status) +{ + return 0; /* There are no Tx/Rx SMP suspend conditions. */ +} + +static int sci_request_ssp_completion_status_is_tx_suspend( + unsigned int completion_status) +{ + switch (completion_status) { + case SCU_TASK_DONE_TX_RAW_CMD_ERR: + case SCU_TASK_DONE_LF_ERR: + case SCU_TASK_OPEN_REJECT_WRONG_DESTINATION: + case SCU_TASK_OPEN_REJECT_RESERVED_ABANDON_1: + case SCU_TASK_OPEN_REJECT_RESERVED_ABANDON_2: + case SCU_TASK_OPEN_REJECT_RESERVED_ABANDON_3: + case SCU_TASK_OPEN_REJECT_BAD_DESTINATION: + case SCU_TASK_OPEN_REJECT_ZONE_VIOLATION: + case SCU_TASK_OPEN_REJECT_STP_RESOURCES_BUSY: + case SCU_TASK_OPEN_REJECT_PROTOCOL_NOT_SUPPORTED: + case SCU_TASK_OPEN_REJECT_CONNECTION_RATE_NOT_SUPPORTED: + return 1; + } + return 0; +} + +static int sci_request_ssp_completion_status_is_tx_rx_suspend( + unsigned int completion_status) +{ + return 0; /* There are no Tx/Rx SSP suspend conditions. */ +} + +static int sci_request_stpsata_completion_status_is_tx_suspend( + unsigned int completion_status) +{ + switch (completion_status) { + case SCU_TASK_DONE_TX_RAW_CMD_ERR: + case SCU_TASK_DONE_LL_R_ERR: + case SCU_TASK_DONE_LL_PERR: + case SCU_TASK_DONE_REG_ERR: + case SCU_TASK_DONE_SDB_ERR: + case SCU_TASK_OPEN_REJECT_WRONG_DESTINATION: + case SCU_TASK_OPEN_REJECT_RESERVED_ABANDON_1: + case SCU_TASK_OPEN_REJECT_RESERVED_ABANDON_2: + case SCU_TASK_OPEN_REJECT_RESERVED_ABANDON_3: + case SCU_TASK_OPEN_REJECT_BAD_DESTINATION: + case SCU_TASK_OPEN_REJECT_ZONE_VIOLATION: + case SCU_TASK_OPEN_REJECT_STP_RESOURCES_BUSY: + case SCU_TASK_OPEN_REJECT_PROTOCOL_NOT_SUPPORTED: + case SCU_TASK_OPEN_REJECT_CONNECTION_RATE_NOT_SUPPORTED: + return 1; + } + return 0; +} + + +static int sci_request_stpsata_completion_status_is_tx_rx_suspend( + unsigned int completion_status) +{ + switch (completion_status) { + case SCU_TASK_DONE_LF_ERR: + case SCU_TASK_DONE_LL_SY_TERM: + case SCU_TASK_DONE_LL_LF_TERM: + case SCU_TASK_DONE_BREAK_RCVD: + case SCU_TASK_DONE_INV_FIS_LEN: + case SCU_TASK_DONE_UNEXP_FIS: + case SCU_TASK_DONE_UNEXP_SDBFIS: + case SCU_TASK_DONE_MAX_PLD_ERR: + return 1; + } + return 0; +} + +static void sci_request_handle_suspending_completions( + struct isci_request *ireq, + u32 completion_code) +{ + int is_tx = 0; + int is_tx_rx = 0; + + switch (ireq->protocol) { + case SAS_PROTOCOL_SMP: + is_tx = sci_request_smp_completion_status_is_tx_suspend( + completion_code); + is_tx_rx = sci_request_smp_completion_status_is_tx_rx_suspend( + completion_code); + break; + case SAS_PROTOCOL_SSP: + is_tx = sci_request_ssp_completion_status_is_tx_suspend( + completion_code); + is_tx_rx = sci_request_ssp_completion_status_is_tx_rx_suspend( + completion_code); + break; + case SAS_PROTOCOL_STP: + is_tx = sci_request_stpsata_completion_status_is_tx_suspend( + completion_code); + is_tx_rx = + sci_request_stpsata_completion_status_is_tx_rx_suspend( + completion_code); + break; + default: + dev_warn(&ireq->isci_host->pdev->dev, + "%s: request %p has no valid protocol\n", + __func__, ireq); + break; + } + if (is_tx || is_tx_rx) { + BUG_ON(is_tx && is_tx_rx); + + sci_remote_node_context_suspend( + &ireq->target_device->rnc, + SCU_HARDWARE_SUSPENSION, + (is_tx_rx) ? SCU_EVENT_TL_RNC_SUSPEND_TX_RX + : SCU_EVENT_TL_RNC_SUSPEND_TX, + NULL, NULL); + } +} + enum sci_status sci_io_request_tc_completion(struct isci_request *ireq, - u32 completion_code) + u32 completion_code) { enum sci_base_request_states state; struct isci_host *ihost = ireq->owning_controller; state = ireq->sm.current_state_id; + /* Decode those completions that signal upcoming suspension events. */ + sci_request_handle_suspending_completions( + ireq, SCU_GET_COMPLETION_TL_STATUS(completion_code)); + switch (state) { case SCI_REQ_STARTED: return request_started_state_tc_event(ireq, completion_code); diff --git a/drivers/scsi/isci/request.h b/drivers/scsi/isci/request.h index 4961f9fbf70f..e845a31ecebb 100644 --- a/drivers/scsi/isci/request.h +++ b/drivers/scsi/isci/request.h @@ -414,5 +414,4 @@ static inline int isci_task_is_ncq_recovery(struct sas_task *task) task->ata_task.fis.lbal == ATA_LOG_SATA_NCQ); } - #endif /* !defined(_ISCI_REQUEST_H_) */ diff --git a/drivers/scsi/isci/scu_completion_codes.h b/drivers/scsi/isci/scu_completion_codes.h index c8b329c695f9..071cb74a211c 100644 --- a/drivers/scsi/isci/scu_completion_codes.h +++ b/drivers/scsi/isci/scu_completion_codes.h @@ -224,6 +224,7 @@ * 32-bit value like we want, each immediate value must be cast to a u32. */ #define SCU_TASK_DONE_GOOD ((u32)0x00) +#define SCU_TASK_DONE_TX_RAW_CMD_ERR ((u32)0x08) #define SCU_TASK_DONE_CRC_ERR ((u32)0x14) #define SCU_TASK_DONE_CHECK_RESPONSE ((u32)0x14) #define SCU_TASK_DONE_GEN_RESPONSE ((u32)0x15) @@ -237,6 +238,7 @@ #define SCU_TASK_DONE_LL_LF_TERM ((u32)0x1A) #define SCU_TASK_DONE_DATA_LEN_ERR ((u32)0x1A) #define SCU_TASK_DONE_LL_CL_TERM ((u32)0x1B) +#define SCU_TASK_DONE_BREAK_RCVD ((u32)0x1B) #define SCU_TASK_DONE_LL_ABORT_ERR ((u32)0x1B) #define SCU_TASK_DONE_SEQ_INV_TYPE ((u32)0x1C) #define SCU_TASK_DONE_UNEXP_XR ((u32)0x1C) |