diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/isci/request.c | 531 | ||||
| -rw-r--r-- | drivers/scsi/isci/request.h | 3 |
2 files changed, 197 insertions, 337 deletions
diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index b9f97e8cc5e..cb13b78d802 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -932,27 +932,14 @@ static void scic_sds_io_request_copy_response(struct scic_sds_request *sci_req) memcpy(resp_buf, ssp_response->resp_data, len); } -/* - * scic_sds_request_started_state_tc_completion_handler() - This method process - * TC (task context) completions for normal IO request (i.e. Task/Abort - * Completions of type 0). This method will update the - * SCIC_SDS_IO_REQUEST_T::status field. - * @sci_req: This parameter specifies the request for which a completion - * occurred. - * @completion_code: This parameter specifies the completion code received from - * the SCU. - * - */ -static enum sci_status -scic_sds_request_started_state_tc_completion_handler(struct scic_sds_request *sci_req, - u32 completion_code) +static enum sci_status request_started_state_tc_event(struct scic_sds_request *sci_req, + u32 completion_code) { - u8 datapres; struct ssp_response_iu *resp_iu; + u8 datapres; - /* - * TODO: Any SDMA return code of other than 0 is bad - * decode 0x003C0000 to determine SDMA status + /* TODO: Any SDMA return code of other than 0 is bad decode 0x003C0000 + * to determine SDMA status */ switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): @@ -960,11 +947,8 @@ scic_sds_request_started_state_tc_completion_handler(struct scic_sds_request *sc SCU_TASK_DONE_GOOD, SCI_SUCCESS); break; - - case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_EARLY_RESP): - { - /* - * There are times when the SCU hardware will return an early + case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_EARLY_RESP): { + /* There are times when the SCU hardware will return an early * response because the io request specified more data than is * returned by the target device (mode pages, inquiry data, * etc.). We must check the response stats to see if this is @@ -979,21 +963,17 @@ scic_sds_request_started_state_tc_completion_handler(struct scic_sds_request *sc word_cnt); if (resp->status == 0) { - scic_sds_request_set_status( - sci_req, - SCU_TASK_DONE_GOOD, - SCI_SUCCESS_IO_DONE_EARLY); + scic_sds_request_set_status(sci_req, + SCU_TASK_DONE_GOOD, + SCI_SUCCESS_IO_DONE_EARLY); } else { - scic_sds_request_set_status( - sci_req, - SCU_TASK_DONE_CHECK_RESPONSE, - SCI_FAILURE_IO_RESPONSE_VALID); + scic_sds_request_set_status(sci_req, + SCU_TASK_DONE_CHECK_RESPONSE, + SCI_FAILURE_IO_RESPONSE_VALID); } + break; } - break; - - case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_CHECK_RESPONSE): - { + case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_CHECK_RESPONSE): { ssize_t word_cnt = SSP_RESP_IU_MAX_SIZE / sizeof(u32); sci_swab32_cpy(&sci_req->ssp.rsp, @@ -1007,24 +987,22 @@ scic_sds_request_started_state_tc_completion_handler(struct scic_sds_request *sc } case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_RESP_LEN_ERR): - /* - * / @todo With TASK_DONE_RESP_LEN_ERR is the response frame + /* TODO With TASK_DONE_RESP_LEN_ERR is the response frame * guaranteed to be received before this completion status is * posted? */ resp_iu = &sci_req->ssp.rsp; datapres = resp_iu->datapres; - if ((datapres == 0x01) || (datapres == 0x02)) { - scic_sds_request_set_status( - sci_req, - SCU_TASK_DONE_CHECK_RESPONSE, - SCI_FAILURE_IO_RESPONSE_VALID); + if (datapres == 1 || datapres == 2) { + scic_sds_request_set_status(sci_req, + SCU_TASK_DONE_CHECK_RESPONSE, + SCI_FAILURE_IO_RESPONSE_VALID); } else - scic_sds_request_set_status( - sci_req, SCU_TASK_DONE_GOOD, SCI_SUCCESS); + scic_sds_request_set_status(sci_req, + SCU_TASK_DONE_GOOD, + SCI_SUCCESS); break; - /* only stp device gets suspended. */ case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_ACK_NAK_TO): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_LL_PERR): @@ -1038,14 +1016,12 @@ scic_sds_request_started_state_tc_completion_handler(struct scic_sds_request *sc case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_REG_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SDB_ERR): if (sci_req->protocol == SCIC_STP_PROTOCOL) { - scic_sds_request_set_status( - sci_req, + scic_sds_request_set_status(sci_req, SCU_GET_COMPLETION_TL_STATUS(completion_code) >> SCU_COMPLETION_TL_STATUS_SHIFT, SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED); } else { - scic_sds_request_set_status( - sci_req, + scic_sds_request_set_status(sci_req, SCU_GET_COMPLETION_TL_STATUS(completion_code) >> SCU_COMPLETION_TL_STATUS_SHIFT, SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); @@ -1063,11 +1039,10 @@ scic_sds_request_started_state_tc_completion_handler(struct scic_sds_request *sc case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_OPEN_REJECT_STP_RESOURCES_BUSY): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_OPEN_REJECT_PROTOCOL_NOT_SUPPORTED): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_OPEN_REJECT_CONNECTION_RATE_NOT_SUPPORTED): - scic_sds_request_set_status( - sci_req, - SCU_GET_COMPLETION_TL_STATUS(completion_code) >> - SCU_COMPLETION_TL_STATUS_SHIFT, - SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED); + scic_sds_request_set_status(sci_req, + SCU_GET_COMPLETION_TL_STATUS(completion_code) >> + SCU_COMPLETION_TL_STATUS_SHIFT, + SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED); break; /* neither ssp nor stp gets suspended. */ @@ -1105,22 +1080,6 @@ scic_sds_request_started_state_tc_completion_handler(struct scic_sds_request *sc return SCI_SUCCESS; } -enum sci_status -scic_sds_io_request_tc_completion(struct scic_sds_request *request, u32 completion_code) -{ - if (request->state_handlers->tc_completion_handler) - return request->state_handlers->tc_completion_handler(request, completion_code); - - dev_warn(scic_to_dev(request->owning_controller), - "%s: SCIC IO Request given task completion notification %x " - "while in wrong state %d\n", - __func__, - completion_code, - sci_base_state_machine_get_state(&request->state_machine)); - - return SCI_FAILURE_INVALID_STATE; -} - /* * This method implements the action to be taken when an SCIC_SDS_IO_REQUEST_T * object receives a scic_sds_request_complete() request. This method frees up @@ -1146,54 +1105,32 @@ static enum sci_status scic_sds_request_completed_state_complete_handler( return SCI_SUCCESS; } -/* - * This method implements the action to be taken when an SCIC_SDS_IO_REQUEST_T - * object receives a scic_sds_request_task_completion() request. This method - * decodes the completion type waiting for the abort task complete - * notification. When the abort task complete is received the io request - * transitions to the completed state. enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_request_aborting_state_tc_completion_handler( +static enum sci_status request_aborting_state_tc_event( struct scic_sds_request *sci_req, u32 completion_code) { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case (SCU_TASK_DONE_GOOD << SCU_COMPLETION_TL_STATUS_SHIFT): case (SCU_TASK_DONE_TASK_ABORT << SCU_COMPLETION_TL_STATUS_SHIFT): - scic_sds_request_set_status( - sci_req, SCU_TASK_DONE_TASK_ABORT, SCI_FAILURE_IO_TERMINATED - ); + scic_sds_request_set_status(sci_req, SCU_TASK_DONE_TASK_ABORT, + SCI_FAILURE_IO_TERMINATED); sci_base_state_machine_change_state(&sci_req->state_machine, SCI_BASE_REQUEST_STATE_COMPLETED); break; default: - /* - * Unless we get some strange error wait for the task abort to complete - * TODO: Should there be a state change for this completion? */ + /* Unless we get some strange error wait for the task abort to complete + * TODO: Should there be a state change for this completion? + */ break; } return SCI_SUCCESS; } -/** - * This method processes the completions transport layer (TL) status to - * determine if the RAW task management frame was sent successfully. If the - * raw frame was sent successfully, then the state for the task request - * transitions to waiting for a response frame. - * @sci_req: This parameter specifies the request for which the TC - * completion was received. - * @completion_code: This parameter indicates the completion status information - * for the TC. - * - * Indicate if the tc completion handler was successful. SCI_SUCCESS currently - * this method always returns success. - */ -static enum sci_status scic_sds_ssp_task_request_await_tc_completion_tc_completion_handler( - struct scic_sds_request *sci_req, - u32 completion_code) +static enum sci_status ssp_task_request_await_tc_event(struct scic_sds_request *sci_req, + u32 completion_code) { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): @@ -1203,33 +1140,27 @@ static enum sci_status scic_sds_ssp_task_request_await_tc_completion_tc_completi sci_base_state_machine_change_state(&sci_req->state_machine, SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE); break; - case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_ACK_NAK_TO): - /* - * Currently, the decision is to simply allow the task request to - * timeout if the task IU wasn't received successfully. - * There is a potential for receiving multiple task responses if we - * decide to send the task IU again. */ + /* Currently, the decision is to simply allow the task request + * to timeout if the task IU wasn't received successfully. + * There is a potential for receiving multiple task responses if + * we decide to send the task IU again. + */ dev_warn(scic_to_dev(sci_req->owning_controller), "%s: TaskRequest:0x%p CompletionCode:%x - " - "ACK/NAK timeout\n", - __func__, - sci_req, + "ACK/NAK timeout\n", __func__, sci_req, completion_code); sci_base_state_machine_change_state(&sci_req->state_machine, SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE); break; - default: - /* - * All other completion status cause the IO to be complete. If a NAK - * was received, then it is up to the user to retry the request. */ - scic_sds_request_set_status( - sci_req, + /* All other completion status cause the IO to be complete. If a NAK + * was received, then it is up to the user to retry the request. + */ + scic_sds_request_set_status(sci_req, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR - ); + SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); sci_base_state_machine_change_state(&sci_req->state_machine, SCI_BASE_REQUEST_STATE_COMPLETED); @@ -1239,27 +1170,15 @@ static enum sci_status scic_sds_ssp_task_request_await_tc_completion_tc_completi return SCI_SUCCESS; } -/** - * This method processes an abnormal TC completion while the SMP request is - * waiting for a response frame. It decides what happened to the IO based - * on TC completion status. - * @sci_req: This parameter specifies the request for which the TC - * completion was received. - * @completion_code: This parameter indicates the completion status information - * for the TC. - * - * Indicate if the tc completion handler was successful. SCI_SUCCESS currently - * this method always returns success. - */ -static enum sci_status scic_sds_smp_request_await_response_tc_completion_handler( - struct scic_sds_request *sci_req, - u32 completion_code) +static enum sci_status smp_request_await_response_tc_event(struct scic_sds_request *sci_req, + u32 completion_code) { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - /* - * In the AWAIT RESPONSE state, any TC completion is unexpected. - * but if the TC has success status, we complete the IO anyway. */ + /* In the AWAIT RESPONSE state, any TC completion is + * unexpected. but if the TC has success status, we + * complete the IO anyway. + */ scic_sds_request_set_status(sci_req, SCU_TASK_DONE_GOOD, SCI_SUCCESS); @@ -1271,11 +1190,13 @@ static enum sci_status scic_sds_smp_request_await_response_tc_completion_handler case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SMP_UFI_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SMP_FRM_TYPE_ERR): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_SMP_LL_RX_ERR): - /* - * These status has been seen in a specific LSI expander, which sometimes - * is not able to send smp response within 2 ms. This causes our hardware - * break the connection and set TC completion with one of these SMP_XXX_XX_ERR - * status. For these type of error, we ask scic user to retry the request. */ + /* These status has been seen in a specific LSI + * expander, which sometimes is not able to send smp + * response within 2 ms. This causes our hardware break + * the connection and set TC completion with one of + * these SMP_XXX_XX_ERR status. For these type of error, + * we ask scic user to retry the request. + */ scic_sds_request_set_status(sci_req, SCU_TASK_DONE_SMP_RESP_TO_ERR, SCI_FAILURE_RETRY_REQUIRED); @@ -1284,14 +1205,12 @@ static enum sci_status scic_sds_smp_request_await_response_tc_completion_handler break; default: - /* - * All other completion status cause the IO to be complete. If a NAK - * was received, then it is up to the user to retry the request. */ - scic_sds_request_set_status( - sci_req, - SCU_NORMALIZE_COMPLETION_STATUS(completion_code), - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR - ); + /* All other completion status cause the IO to be complete. If a NAK + * was received, then it is up to the user to retry the request + */ + scic_sds_request_set_status(sci_req, + SCU_NORMALIZE_COMPLETION_STATUS(completion_code), + SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); sci_base_state_machine_change_state(&sci_req->state_machine, SCI_BASE_REQUEST_STATE_COMPLETED); @@ -1301,22 +1220,8 @@ static enum sci_status scic_sds_smp_request_await_response_tc_completion_handler return SCI_SUCCESS; } -/** - * This method processes the completions transport layer (TL) status to - * determine if the SMP request was sent successfully. If the SMP request - * was sent successfully, then the state for the SMP request transits to - * waiting for a response frame. - * @sci_req: This parameter specifies the request for which the TC - * completion was received. - * @completion_code: This parameter indicates the completion status information - * for the TC. - * - * Indicate if the tc completion handler was successful. SCI_SUCCESS currently - * this method always returns success. - */ -static enum sci_status scic_sds_smp_request_await_tc_completion_tc_completion_handler( - struct scic_sds_request *sci_req, - u32 completion_code) +static enum sci_status smp_request_await_tc_event(struct scic_sds_request *sci_req, + u32 completion_code) { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): @@ -1326,20 +1231,17 @@ static enum sci_status scic_sds_smp_request_await_tc_completion_tc_completion_ha sci_base_state_machine_change_state(&sci_req->state_machine, SCI_BASE_REQUEST_STATE_COMPLETED); break; - default: - /* - * All other completion status cause the IO to be complete. If a NAK - * was received, then it is up to the user to retry the request. */ - scic_sds_request_set_status( - sci_req, - SCU_NORMALIZE_COMPLETION_STATUS(completion_code), - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR - ); + /* All other completion status cause the IO to be + * complete. If a NAK was received, then it is up to + * the user to retry the request. + */ + scic_sds_request_set_status(sci_req, + SCU_NORMALIZE_COMPLETION_STATUS(completion_code), + SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_base_state_machine_change_state( - &sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + sci_base_state_machine_change_state(&sci_req->state_machine, + SCI_BASE_REQUEST_STATE_COMPLETED); break; } @@ -1400,44 +1302,29 @@ static struct scu_sgl_element *scic_sds_stp_request_pio_get_next_sgl(struct scic return current_sgl; } -/** - * - * @sci_req: - * @completion_code: - * - * This method processes a TC completion. The expected TC completion is for - * the transmission of the H2D register FIS containing the SATA/STP non-data - * request. This method always successfully processes the TC completion. - * SCI_SUCCESS This value is always returned. - */ -static enum sci_status scic_sds_stp_request_non_data_await_h2d_tc_completion_handler( - struct scic_sds_request *sci_req, - u32 completion_code) +static enum sci_status stp_request_non_data_await_h2d_tc_event(struct scic_sds_request *sci_req, + u32 completion_code) { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - scic_sds_request_set_status( - sci_req, SCU_TASK_DONE_GOOD, SCI_SUCCESS - ); + scic_sds_request_set_status(sci_req, SCU_TASK_DONE_GOOD, + SCI_SUCCESS); - sci_base_state_machine_change_state( - &sci_req->state_machine, - SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_D2H_SUBSTATE - ); + sci_base_state_machine_change_state(&sci_req->state_machine, + SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_D2H_SUBSTATE); break; default: - /* - * All other completion status cause the IO to be complete. If a NAK - * was received, then it is up to the user to retry the request. */ - scic_sds_request_set_status( - sci_req, - SCU_NORMALIZE_COMPLETION_STATUS(completion_code), - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR - ); + /* All other completion status cause the IO to be + * complete. If a NAK was received, then it is up to + * the user to retry the request. + */ + scic_sds_request_set_status(sci_req, + SCU_NORMALIZE_COMPLETION_STATUS(completion_code), + SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_base_state_machine_change_state( - &sci_req->state_machine, SCI_BASE_REQUEST_STATE_COMPLETED); + sci_base_state_machine_change_state(&sci_req->state_machine, + SCI_BASE_REQUEST_STATE_COMPLETED); break; } @@ -1613,55 +1500,38 @@ static enum sci_status scic_sds_stp_request_pio_data_in_copy_data( return status; } -/** - * - * @sci_req: - * @completion_code: - * - * enum sci_status - */ -static enum sci_status scic_sds_stp_request_pio_await_h2d_completion_tc_completion_handler( - struct scic_sds_request *sci_req, - u32 completion_code) +static enum sci_status stp_request_pio_await_h2d_completion_tc_event(struct scic_sds_request *sci_req, + u32 completion_code) { enum sci_status status = SCI_SUCCESS; switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - scic_sds_request_set_status( - sci_req, SCU_TASK_DONE_GOOD, SCI_SUCCESS - ); + scic_sds_request_set_status(sci_req, SCU_TASK_DONE_GOOD, SCI_SUCCESS); - sci_base_state_machine_change_state( - &sci_req->state_machine, - SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_FRAME_SUBSTATE - ); + sci_base_state_machine_change_state(&sci_req->state_machine, + SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_FRAME_SUBSTATE); break; default: - /* - * All other completion status cause the IO to be complete. If a NAK - * was received, then it is up to the user to retry the request. */ - scic_sds_request_set_status( - sci_req, - SCU_NORMALIZE_COMPLETION_STATUS(completion_code), - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR - ); + /* All other completion status cause the IO to be + * complete. If a NAK was received, then it is up to + * the user to retry the request. + */ + scic_sds_request_set_status(sci_req, + SCU_NORMALIZE_COMPLETION_STATUS(completion_code), + SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_base_state_machine_change_state( - &sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED - ); + sci_base_state_machine_change_state(&sci_req->state_machine, + SCI_BASE_REQUEST_STATE_COMPLETED); break; } return status; } -static enum sci_status scic_sds_stp_request_pio_data_out_await_data_transmit_completion_tc_completion_handler( - - struct scic_sds_request *sci_req, - u32 completion_code) +static enum sci_status pio_data_out_tx_done_tc_event(struct scic_sds_request *sci_req, + u32 completion_code) { enum sci_status status = SCI_SUCCESS; bool all_frames_transferred = false; @@ -1695,7 +1565,6 @@ static enum sci_status scic_sds_stp_request_pio_data_out_await_data_transmit_com ); } break; - default: /* * All other completion status cause the IO to be complete. If a NAK @@ -2209,12 +2078,8 @@ enum sci_status scic_sds_io_request_frame_handler(struct scic_sds_request *sci_r } } - - - -static enum sci_status scic_sds_stp_request_udma_await_tc_completion_tc_completion_handler( - struct scic_sds_request *sci_req, - u32 completion_code) +static enum sci_status stp_request_udma_await_tc_event(struct scic_sds_request *sci_req, + u32 completion_code) { enum sci_status status = SCI_SUCCESS; @@ -2226,9 +2091,10 @@ static enum sci_status scic_sds_stp_request_udma_await_tc_completion_tc_completi break; case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_UNEXP_FIS): case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_REG_ERR): - /* - * We must check ther response buffer to see if the D2H Register FIS was - * received before we got the TC completion. */ + /* We must check ther response buffer to see if the D2H + * Register FIS was received before we got the TC + * completion. + */ if (sci_req->stp.rsp.fis_type == FIS_REGD2H) { scic_sds_remote_device_suspend(sci_req->target_device, SCU_EVENT_SPECIFIC(SCU_NORMALIZE_COMPLETION_STATUS(completion_code))); @@ -2237,18 +2103,22 @@ static enum sci_status scic_sds_stp_request_udma_await_tc_completion_tc_completi SCU_TASK_DONE_CHECK_RESPONSE, SCI_FAILURE_IO_RESPONSE_VALID); } else { - /* - * If we have an error completion status for the TC then we can expect a - * D2H register FIS from the device so we must change state to wait for it */ + /* If we have an error completion status for the + * TC then we can expect a D2H register FIS from + * the device so we must change state to wait + * for it + */ sci_base_state_machine_change_state(&sci_req->state_machine, SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_D2H_REG_FIS_SUBSTATE); } break; - /* - * / @todo Check to see if any of these completion status need to wait for - * / the device to host register fis. */ - /* / @todo We can retry the command for SCU_TASK_DONE_CMD_LL_R_ERR - this comes only for B0 */ + /* TODO Check to see if any of these completion status need to + * wait for the device to host register fis. + */ + /* 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): @@ -2268,61 +2138,35 @@ static enum sci_status scic_sds_stp_request_udma_await_tc_completion_tc_completi return status; } -/** - * - * @sci_req: - * @completion_code: - * - * This method processes a TC completion. The expected TC completion is for - * the transmission of the H2D register FIS containing the SATA/STP non-data - * request. This method always successfully processes the TC completion. - * SCI_SUCCESS This value is always returned. - */ -static enum sci_status scic_sds_stp_request_soft_reset_await_h2d_asserted_tc_completion_handler( - struct scic_sds_request *sci_req, - u32 completion_code) +static enum sci_status stp_request_soft_reset_await_h2d_asserted_tc_event(struct scic_sds_request *sci_req, + u32 completion_code) { switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) { case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD): - scic_sds_request_set_status( - sci_req, SCU_TASK_DONE_GOOD, SCI_SUCCESS - ); + scic_sds_request_set_status(sci_req, SCU_TASK_DONE_GOOD, + SCI_SUCCESS); - sci_base_state_machine_change_state( - &sci_req->state_machine, - SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_DIAGNOSTIC_COMPLETION_SUBSTATE - ); + sci_base_state_machine_change_state(&sci_req->state_machine, + SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_DIAGNOSTIC_COMPLETION_SUBSTATE); break; default: /* * All other completion status cause the IO to be complete. If a NAK * was received, then it is up to the user to retry the request. */ - scic_sds_request_set_status( - sci_req, + scic_sds_request_set_status(sci_req, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR - ); + SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); - sci_base_state_machine_change_state( - &sci_req->state_machine, SCI_BASE_REQUEST_STATE_COMPLETED); + sci_base_state_machine_change_state(&sci_req->state_machine, + SCI_BASE_REQUEST_STATE_COMPLETED); break; } return SCI_SUCCESS; } -/** - * - * @sci_req: - * @completion_code: - * - * This method processes a TC completion. The expected TC completion is for - * the transmission of the H2D register FIS containing the SATA/STP non-data - * request. This method always successfully processes the TC completion. - * SCI_SUCCESS This value is always returned. - */ -static enum sci_status scic_sds_stp_request_soft_reset_await_h2d_diagnostic_tc_completion_handler( +static enum sci_status stp_request_soft_reset_await_h2d_diagnostic_tc_event( struct scic_sds_request *sci_req, u32 completion_code) { @@ -2336,70 +2180,89 @@ static enum sci_status scic_sds_stp_request_soft_reset_await_h2d_diagnostic_tc_c break; default: - /* - * All other completion status cause the IO to be complete. If a NAK - * was received, then it is up to the user to retry the request. */ - scic_sds_request_set_status( - sci_req, + /* All other completion status cause the IO to be complete. If + * a NAK was received, then it is up to the user to retry the + * request. + */ + scic_sds_request_set_status(sci_req, SCU_NORMALIZE_COMPLETION_STATUS(completion_code), - SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR - ); + SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR); sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); + SCI_BASE_REQUEST_STATE_COMPLETED); break; } return SCI_SUCCESS; } +enum sci_status +scic_sds_io_request_tc_completion(struct scic_sds_request *sci_req, u32 completion_code) +{ + enum sci_base_request_states state; + struct scic_sds_controller *scic = sci_req->owning_controller; + + state = sci_req->state_machine.current_state_id; + + switch (state) { + case SCI_BASE_REQUEST_STATE_STARTED: + return request_started_state_tc_event(sci_req, completion_code); + case SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION: + return ssp_task_request_await_tc_event(sci_req, completion_code); + case SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_RESPONSE: + return smp_request_await_response_tc_event(sci_req, completion_code); + case SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_TC_COMPLETION: + return smp_request_await_tc_event(sci_req, completion_code); + case SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_TC_COMPLETION_SUBSTATE: + return stp_request_udma_await_tc_event(sci_req, completion_code); + case SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_H2D_COMPLETION_SUBSTATE: + return stp_request_non_data_await_h2d_tc_event(sci_req, completion_code); + case SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_H2D_COMPLETION_SUBSTATE: + return stp_request_pio_await_h2d_completion_tc_event(sci_req, completion_code); + case SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_OUT_TRANSMIT_DATA_SUBSTATE: + return pio_data_out_tx_done_tc_event(sci_req, completion_code); + case SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_ASSERTED_COMPLETION_SUBSTATE: + return stp_request_soft_reset_await_h2d_asserted_tc_event(sci_req, completion_code); + case SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_DIAGNOSTIC_COMPLETION_SUBSTATE: + return stp_request_soft_reset_await_h2d_diagnostic_tc_event(sci_req, completion_code); + case SCI_BASE_REQUEST_STATE_ABORTING: + return request_aborting_state_tc_event(sci_req, completion_code); + default: + dev_warn(scic_to_dev(scic), + "%s: SCIC IO Request given task completion notification %x " + "while in wrong state %d\n", __func__, completion_code, + state); + return SCI_FAILURE_INVALID_STATE; + } +} + + + static const struct scic_sds_io_request_state_handler scic_sds_request_state_handler_table[] = { [SCI_BASE_REQUEST_STATE_INITIAL] = {}, [SCI_BASE_REQUEST_STATE_CONSTRUCTED] = {}, - [SCI_BASE_REQUEST_STATE_STARTED] = { - .tc_completion_handler = scic_sds_request_started_state_tc_completion_handler, - }, - [SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION] = { - .tc_completion_handler = scic_sds_ssp_task_request_await_tc_completion_tc_completion_handler, - }, + [SCI_BASE_REQUEST_STATE_STARTED] = { }, + [SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION] = { }, [SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE] = { }, - [SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_RESPONSE] = { - .tc_completion_handler = scic_sds_smp_request_await_response_tc_completion_handler, - }, - [SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_TC_COMPLETION] = { - .tc_completion_handler = scic_sds_smp_request_await_tc_completion_tc_completion_handler, - }, - [SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_TC_COMPLETION_SUBSTATE] = { - .tc_completion_handler = scic_sds_stp_request_udma_await_tc_completion_tc_completion_handler, - }, + [SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_RESPONSE] = { }, + [SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_TC_COMPLETION] = { }, + [SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_TC_COMPLETION_SUBSTATE] = { }, [SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_D2H_REG_FIS_SUBSTATE] = { }, - [SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_H2D_COMPLETION_SUBSTATE] = { - .tc_completion_handler = scic_sds_stp_request_non_data_await_h2d_tc_completion_handler, - }, + [SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_H2D_COMPLETION_SUBSTATE] = { }, [SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_D2H_SUBSTATE] = { }, - [SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_H2D_COMPLETION_SUBSTATE] = { - .tc_completion_handler = scic_sds_stp_request_pio_await_h2d_completion_tc_completion_handler, - }, + [SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_H2D_COMPLETION_SUBSTATE] = { }, [SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_FRAME_SUBSTATE] = { }, [SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_IN_AWAIT_DATA_SUBSTATE] = { .event_handler = scic_sds_stp_request_pio_data_in_await_data_event_handler, }, - [SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_OUT_TRANSMIT_DATA_SUBSTATE] = { - .tc_completion_handler = scic_sds_stp_request_pio_data_out_await_data_transmit_completion_tc_completion_handler, - }, - [SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_ASSERTED_COMPLETION_SUBSTATE] = { - .tc_completion_handler = scic_sds_stp_request_soft_reset_await_h2d_asserted_tc_completion_handler, - }, - [SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_DIAGNOSTIC_COMPLETION_SUBSTATE] = { - .tc_completion_handler = scic_sds_stp_request_soft_reset_await_h2d_diagnostic_tc_completion_handler, - }, + [SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_OUT_TRANSMIT_DATA_SUBSTATE] = { }, + [SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_ASSERTED_COMPLETION_SUBSTATE] = { }, + [SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_DIAGNOSTIC_COMPLETION_SUBSTATE] = { }, [SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_D2H_RESPONSE_FRAME_SUBSTATE] = { }, [SCI_BASE_REQUEST_STATE_COMPLETED] = { .complete_handler = scic_sds_request_completed_state_complete_handler, }, - [SCI_BASE_REQUEST_STATE_ABORTING] = { - .tc_completion_handler = scic_sds_request_aborting_state_tc_completion_handler, - }, + [SCI_BASE_REQUEST_STATE_ABORTING] = { }, [SCI_BASE_REQUEST_STATE_FINAL] = { }, }; diff --git a/drivers/scsi/isci/request.h b/drivers/scsi/isci/request.h index c9070e70894..e13ca3f7c8d 100644 --- a/drivers/scsi/isci/request.h +++ b/drivers/scsi/isci/request.h @@ -426,8 +426,6 @@ typedef enum sci_status (*scic_sds_io_request_handler_t) (struct scic_sds_request *request); typedef enum sci_status (*scic_sds_io_request_event_handler_t) (struct scic_sds_request *req, u32 event); -typedef enum sci_status (*scic_sds_io_request_task_completion_handler_t) - (struct scic_sds_request *req, u32 completion_code); /** * struct scic_sds_io_request_state_handler - This is the SDS core definition @@ -442,7 +440,6 @@ struct scic_sds_io_request_state_handler { */ scic_sds_io_request_handler_t complete_handler; - scic_sds_io_request_task_completion_handler_t tc_completion_handler; scic_sds_io_request_event_handler_t event_handler; }; |