diff options
Diffstat (limited to 'drivers/scsi/isci/request.c')
| -rw-r--r-- | drivers/scsi/isci/request.c | 146 |
1 files changed, 50 insertions, 96 deletions
diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index f503e3e..6968863 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -777,16 +777,58 @@ scic_sds_request_start(struct scic_sds_request *request) } enum sci_status -scic_sds_io_request_terminate(struct scic_sds_request *request) +scic_sds_io_request_terminate(struct scic_sds_request *sci_req) { - if (request->state_handlers->abort_handler) - return request->state_handlers->abort_handler(request); + enum sci_base_request_states state; - dev_warn(scic_to_dev(request->owning_controller), - "%s: SCIC IO Request requested to abort while in wrong " - "state %d\n", - __func__, - sci_base_state_machine_get_state(&request->state_machine)); + state = sci_req->state_machine.current_state_id; + + switch (state) { + case SCI_BASE_REQUEST_STATE_CONSTRUCTED: + 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); + return SCI_SUCCESS; + case SCI_BASE_REQUEST_STATE_STARTED: + case SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION: + case SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_RESPONSE: + case SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_TC_COMPLETION: + case SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_TC_COMPLETION_SUBSTATE: + case SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_D2H_REG_FIS_SUBSTATE: + case SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_H2D_COMPLETION_SUBSTATE: + case SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_D2H_SUBSTATE: + case SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_H2D_COMPLETION_SUBSTATE: + case SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_FRAME_SUBSTATE: + case SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_IN_AWAIT_DATA_SUBSTATE: + case SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_OUT_TRANSMIT_DATA_SUBSTATE: + case SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_ASSERTED_COMPLETION_SUBSTATE: + case SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_H2D_DIAGNOSTIC_COMPLETION_SUBSTATE: + case SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_D2H_RESPONSE_FRAME_SUBSTATE: + sci_base_state_machine_change_state(&sci_req->state_machine, + SCI_BASE_REQUEST_STATE_ABORTING); + return SCI_SUCCESS; + case SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE: + sci_base_state_machine_change_state(&sci_req->state_machine, + SCI_BASE_REQUEST_STATE_ABORTING); + sci_base_state_machine_change_state(&sci_req->state_machine, + SCI_BASE_REQUEST_STATE_COMPLETED); + return SCI_SUCCESS; + case SCI_BASE_REQUEST_STATE_ABORTING: + sci_base_state_machine_change_state(&sci_req->state_machine, + SCI_BASE_REQUEST_STATE_COMPLETED); + return SCI_SUCCESS; + case SCI_BASE_REQUEST_STATE_COMPLETED: + default: + dev_warn(scic_to_dev(sci_req->owning_controller), + "%s: SCIC IO Request requested to abort while in wrong " + "state %d\n", + __func__, + sci_base_state_machine_get_state(&sci_req->state_machine)); + break; + } return SCI_FAILURE_INVALID_STATE; } @@ -931,34 +973,6 @@ static enum sci_status scic_sds_request_constructed_state_start_handler( } /* - * This method implements the action to be taken when an SCIC_SDS_IO_REQUEST_T - * object receives a scic_sds_request_terminate() request. Since the request - * has not yet been posted to the hardware the request transitions to the - * completed state. enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_request_constructed_state_abort_handler( - struct scic_sds_request *request) -{ - /* - * This request has been terminated by the user make sure that the correct - * status code is returned */ - scic_sds_request_set_status(request, - SCU_TASK_DONE_TASK_ABORT, - SCI_FAILURE_IO_TERMINATED); - - sci_base_state_machine_change_state(&request->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); - return SCI_SUCCESS; -} - -static enum sci_status scic_sds_request_started_state_abort_handler(struct scic_sds_request *sci_req) -{ - sci_base_state_machine_change_state(&sci_req->state_machine, - SCI_BASE_REQUEST_STATE_ABORTING); - return SCI_SUCCESS; -} - -/* * 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 @@ -1248,26 +1262,6 @@ static enum sci_status scic_sds_request_completed_state_complete_handler( } /* - * ***************************************************************************** - * * ABORTING STATE HANDLERS - * ***************************************************************************** */ - -/* - * This method implements the action to be taken when an SCIC_SDS_IO_REQUEST_T - * object receives a scic_sds_request_terminate() request. This method is the - * io request aborting state abort handlers. On receipt of a multiple - * terminate requests the io request will transition to the completed state. - * This should not happen in normal operation. enum sci_status SCI_SUCCESS - */ -static enum sci_status scic_sds_request_aborting_state_abort_handler( - struct scic_sds_request *request) -{ - sci_base_state_machine_change_state(&request->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); - 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 @@ -1379,28 +1373,6 @@ static enum sci_status scic_sds_ssp_task_request_await_tc_completion_tc_completi } /** - * This method is responsible for processing a terminate/abort request for this - * TC while the request is waiting for the task management response - * unsolicited frame. - * @sci_req: This parameter specifies the request for which the - * termination was requested. - * - * This method returns an indication as to whether the abort request was - * successfully handled. need to update to ensure the received UF doesn't cause - * damage to subsequent requests (i.e. put the extended tag in a holding - * pattern for this particular device). - */ -static enum sci_status scic_sds_ssp_task_request_await_tc_response_abort_handler( - struct scic_sds_request *request) -{ - sci_base_state_machine_change_state(&request->state_machine, - SCI_BASE_REQUEST_STATE_ABORTING); - sci_base_state_machine_change_state(&request->state_machine, - SCI_BASE_REQUEST_STATE_COMPLETED); - return SCI_SUCCESS; -} - -/** * This method processes an unsolicited frame while the task mgmt request is * waiting for a response frame. It will copy the response data, release * the unsolicited frame, and transition the request to the @@ -2560,81 +2532,63 @@ static const struct scic_sds_io_request_state_handler scic_sds_request_state_han [SCI_BASE_REQUEST_STATE_INITIAL] = { }, [SCI_BASE_REQUEST_STATE_CONSTRUCTED] = { .start_handler = scic_sds_request_constructed_state_start_handler, - .abort_handler = scic_sds_request_constructed_state_abort_handler, }, [SCI_BASE_REQUEST_STATE_STARTED] = { - .abort_handler = scic_sds_request_started_state_abort_handler, .tc_completion_handler = scic_sds_request_started_state_tc_completion_handler, .frame_handler = scic_sds_request_started_state_frame_handler, }, [SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_COMPLETION] = { - .abort_handler = scic_sds_request_started_state_abort_handler, .tc_completion_handler = scic_sds_ssp_task_request_await_tc_completion_tc_completion_handler, }, [SCIC_SDS_IO_REQUEST_STARTED_TASK_MGMT_SUBSTATE_AWAIT_TC_RESPONSE] = { - .abort_handler = scic_sds_ssp_task_request_await_tc_response_abort_handler, .frame_handler = scic_sds_ssp_task_request_await_tc_response_frame_handler, }, [SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_RESPONSE] = { - .abort_handler = scic_sds_request_started_state_abort_handler, .tc_completion_handler = scic_sds_smp_request_await_response_tc_completion_handler, .frame_handler = scic_sds_smp_request_await_response_frame_handler, }, [SCIC_SDS_SMP_REQUEST_STARTED_SUBSTATE_AWAIT_TC_COMPLETION] = { - .abort_handler = scic_sds_request_started_state_abort_handler, .tc_completion_handler = scic_sds_smp_request_await_tc_completion_tc_completion_handler, }, [SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_TC_COMPLETION_SUBSTATE] = { - .abort_handler = scic_sds_request_started_state_abort_handler, .tc_completion_handler = scic_sds_stp_request_udma_await_tc_completion_tc_completion_handler, .frame_handler = scic_sds_stp_request_udma_general_frame_handler, }, [SCIC_SDS_STP_REQUEST_STARTED_UDMA_AWAIT_D2H_REG_FIS_SUBSTATE] = { - .abort_handler = scic_sds_request_started_state_abort_handler, .frame_handler = scic_sds_stp_request_udma_await_d2h_reg_fis_frame_handler, }, [SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_H2D_COMPLETION_SUBSTATE] = { - .abort_handler = scic_sds_request_started_state_abort_handler, .tc_completion_handler = scic_sds_stp_request_non_data_await_h2d_tc_completion_handler, }, [SCIC_SDS_STP_REQUEST_STARTED_NON_DATA_AWAIT_D2H_SUBSTATE] = { - .abort_handler = scic_sds_request_started_state_abort_handler, .frame_handler = scic_sds_stp_request_non_data_await_d2h_frame_handler, }, [SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_H2D_COMPLETION_SUBSTATE] = { - .abort_handler = scic_sds_request_started_state_abort_handler, .tc_completion_handler = scic_sds_stp_request_pio_await_h2d_completion_tc_completion_handler, }, [SCIC_SDS_STP_REQUEST_STARTED_PIO_AWAIT_FRAME_SUBSTATE] = { - .abort_handler = scic_sds_request_started_state_abort_handler, .frame_handler = scic_sds_stp_request_pio_await_frame_frame_handler }, [SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_IN_AWAIT_DATA_SUBSTATE] = { - .abort_handler = scic_sds_request_started_state_abort_handler, .event_handler = scic_sds_stp_request_pio_data_in_await_data_event_handler, .frame_handler = scic_sds_stp_request_pio_data_in_await_data_frame_handler }, [SCIC_SDS_STP_REQUEST_STARTED_PIO_DATA_OUT_TRANSMIT_DATA_SUBSTATE] = { - .abort_handler = scic_sds_request_started_state_abort_handler, .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] = { - .abort_handler = scic_sds_request_started_state_abort_handler, .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] = { - .abort_handler = scic_sds_request_started_state_abort_handler, .tc_completion_handler = scic_sds_stp_request_soft_reset_await_h2d_diagnostic_tc_completion_handler, }, [SCIC_SDS_STP_REQUEST_STARTED_SOFT_RESET_AWAIT_D2H_RESPONSE_FRAME_SUBSTATE] = { - .abort_handler = scic_sds_request_started_state_abort_handler, .frame_handler = scic_sds_stp_request_soft_reset_await_d2h_frame_handler, }, [SCI_BASE_REQUEST_STATE_COMPLETED] = { .complete_handler = scic_sds_request_completed_state_complete_handler, }, [SCI_BASE_REQUEST_STATE_ABORTING] = { - .abort_handler = scic_sds_request_aborting_state_abort_handler, .tc_completion_handler = scic_sds_request_aborting_state_tc_completion_handler, .frame_handler = scic_sds_request_aborting_state_frame_handler, }, |