1 files changed, 5 insertions, 190 deletions

diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c
index 788daeedc89f..1a39ce50529d 100644
--- a/drivers/scsi/isci/request.c
+++ b/drivers/scsi/isci/request.c
@@ -666,18 +666,12 @@ sci_io_request_construct_sata(struct isci_request *ireq,
         if (test_bit(IREQ_TMF, &ireq->flags)) {
                 struct isci_tmf *tmf = isci_request_access_tmf(ireq);
 
-                if (tmf->tmf_code == isci_tmf_sata_srst_high ||
-                    tmf->tmf_code == isci_tmf_sata_srst_low) {
-                        scu_stp_raw_request_construct_task_context(ireq);
-                        return SCI_SUCCESS;
-                } else {
-                        dev_err(&ireq->owning_controller->pdev->dev,
-                                "%s: Request 0x%p received un-handled SAT "
-                                "management protocol 0x%x.\n",
-                                __func__, ireq, tmf->tmf_code);
+                dev_err(&ireq->owning_controller->pdev->dev,
+                        "%s: Request 0x%p received un-handled SAT "
+                        "management protocol 0x%x.\n",
+                        __func__, ireq, tmf->tmf_code);
 
-                        return SCI_FAILURE;
-                }
+                return SCI_FAILURE;
         }
 
         if (!sas_protocol_ata(task->task_proto)) {
@@ -774,34 +768,6 @@ static enum sci_status sci_io_request_construct_basic_sata(struct isci_request *
         return status;
 }
 
-enum sci_status sci_task_request_construct_sata(struct isci_request *ireq)
-{
-        enum sci_status status = SCI_SUCCESS;
-
-        /* check for management protocols */
-        if (test_bit(IREQ_TMF, &ireq->flags)) {
-                struct isci_tmf *tmf = isci_request_access_tmf(ireq);
-
-                if (tmf->tmf_code == isci_tmf_sata_srst_high ||
-                    tmf->tmf_code == isci_tmf_sata_srst_low) {
-                        scu_stp_raw_request_construct_task_context(ireq);
-                } else {
-                        dev_err(&ireq->owning_controller->pdev->dev,
-                                "%s: Request 0x%p received un-handled SAT "
-                                "Protocol 0x%x.\n",
-                                __func__, ireq, tmf->tmf_code);
-
-                        return SCI_FAILURE;
-                }
-        }
-
-        if (status != SCI_SUCCESS)
-                return status;
-        sci_change_state(&ireq->sm, SCI_REQ_CONSTRUCTED);
-
-        return status;
-}
-
 /**
  * sci_req_tx_bytes - bytes transferred when reply underruns request
  * @ireq: request that was terminated early
@@ -903,9 +869,6 @@ sci_io_request_terminate(struct isci_request *ireq)
         case SCI_REQ_STP_PIO_WAIT_FRAME:
         case SCI_REQ_STP_PIO_DATA_IN:
         case SCI_REQ_STP_PIO_DATA_OUT:
-        case SCI_REQ_STP_SOFT_RESET_WAIT_H2D_ASSERTED:
-        case SCI_REQ_STP_SOFT_RESET_WAIT_H2D_DIAG:
-        case SCI_REQ_STP_SOFT_RESET_WAIT_D2H:
         case SCI_REQ_ATAPI_WAIT_H2D:
         case SCI_REQ_ATAPI_WAIT_PIO_SETUP:
         case SCI_REQ_ATAPI_WAIT_D2H:
@@ -2085,59 +2048,6 @@ sci_io_request_frame_handler(struct isci_request *ireq,
                 return status;
         }
 
-        case SCI_REQ_STP_SOFT_RESET_WAIT_D2H: {
-                struct dev_to_host_fis *frame_header;
-                u32 *frame_buffer;
-
-                status = sci_unsolicited_frame_control_get_header(&ihost->uf_control,
-                                                                       frame_index,
-                                                                       (void **)&frame_header);
-                if (status != SCI_SUCCESS) {
-                        dev_err(&ihost->pdev->dev,
-                                "%s: SCIC IO Request 0x%p could not get frame "
-                                "header for frame index %d, status %x\n",
-                                __func__,
-                                stp_req,
-                                frame_index,
-                                status);
-                        return status;
-                }
-
-                switch (frame_header->fis_type) {
-                case FIS_REGD2H:
-                        sci_unsolicited_frame_control_get_buffer(&ihost->uf_control,
-                                                                      frame_index,
-                                                                      (void **)&frame_buffer);
-
-                        sci_controller_copy_sata_response(&ireq->stp.rsp,
-                                                               frame_header,
-                                                               frame_buffer);
-
-                        /* The command has completed with error */
-                        ireq->scu_status = SCU_TASK_DONE_CHECK_RESPONSE;
-                        ireq->sci_status = SCI_FAILURE_IO_RESPONSE_VALID;
-                        break;
-
-                default:
-                        dev_warn(&ihost->pdev->dev,
-                                 "%s: IO Request:0x%p Frame Id:%d protocol "
-                                 "violation occurred\n",
-                                 __func__,
-                                 stp_req,
-                                 frame_index);
-
-                        ireq->scu_status = SCU_TASK_DONE_UNEXP_FIS;
-                        ireq->sci_status = SCI_FAILURE_PROTOCOL_VIOLATION;
-                        break;
-                }
-
-                sci_change_state(&ireq->sm, SCI_REQ_COMPLETED);
-
-                /* Frame has been decoded return it to the controller */
-                sci_controller_release_frame(ihost, frame_index);
-
-                return status;
-        }
         case SCI_REQ_ATAPI_WAIT_PIO_SETUP: {
                 struct sas_task *task = isci_request_access_task(ireq);
 
@@ -2235,57 +2145,6 @@ static enum sci_status stp_request_udma_await_tc_event(struct isci_request *ireq
         return status;
 }
 
-static enum sci_status
-stp_request_soft_reset_await_h2d_asserted_tc_event(struct isci_request *ireq,
-                                                   u32 completion_code)
-{
-        switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) {
-        case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD):
-                ireq->scu_status = SCU_TASK_DONE_GOOD;
-                ireq->sci_status = SCI_SUCCESS;
-                sci_change_state(&ireq->sm, SCI_REQ_STP_SOFT_RESET_WAIT_H2D_DIAG);
-                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.
-                 */
-                ireq->scu_status = SCU_NORMALIZE_COMPLETION_STATUS(completion_code);
-                ireq->sci_status = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR;
-                sci_change_state(&ireq->sm, SCI_REQ_COMPLETED);
-                break;
-        }
-
-        return SCI_SUCCESS;
-}
-
-static enum sci_status
-stp_request_soft_reset_await_h2d_diagnostic_tc_event(struct isci_request *ireq,
-                                                     u32 completion_code)
-{
-        switch (SCU_GET_COMPLETION_TL_STATUS(completion_code)) {
-        case SCU_MAKE_COMPLETION_STATUS(SCU_TASK_DONE_GOOD):
-                ireq->scu_status = SCU_TASK_DONE_GOOD;
-                ireq->sci_status = SCI_SUCCESS;
-                sci_change_state(&ireq->sm, SCI_REQ_STP_SOFT_RESET_WAIT_D2H);
-                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.
-                 */
-                ireq->scu_status = SCU_NORMALIZE_COMPLETION_STATUS(completion_code);
-                ireq->sci_status = SCI_FAILURE_CONTROLLER_SPECIFIC_IO_ERR;
-                sci_change_state(&ireq->sm, SCI_REQ_COMPLETED);
-                break;
-        }
-
-        return SCI_SUCCESS;
-}
-
 static enum sci_status atapi_raw_completion(struct isci_request *ireq, u32 completion_code,
                                                   enum sci_base_request_states next)
 {
@@ -2431,14 +2290,6 @@ sci_io_request_tc_completion(struct isci_request *ireq,
         case SCI_REQ_STP_PIO_DATA_OUT:
                 return pio_data_out_tx_done_tc_event(ireq, completion_code);
 
-        case SCI_REQ_STP_SOFT_RESET_WAIT_H2D_ASSERTED:
-                return stp_request_soft_reset_await_h2d_asserted_tc_event(ireq,
-                                                                          completion_code);
-
-        case SCI_REQ_STP_SOFT_RESET_WAIT_H2D_DIAG:
-                return stp_request_soft_reset_await_h2d_diagnostic_tc_event(ireq,
-                                                                            completion_code);
-
         case SCI_REQ_ABORTING:
                 return request_aborting_state_tc_event(ireq,
                                                        completion_code);
@@ -3212,10 +3063,6 @@ static void sci_request_started_state_enter(struct sci_base_state_machine *sm)
          */
         if (!task && dev->dev_type == SAS_END_DEV) {
                 state = SCI_REQ_TASK_WAIT_TC_COMP;
-        } else if (!task &&
-                   (isci_request_access_tmf(ireq)->tmf_code == isci_tmf_sata_srst_high ||
-                    isci_request_access_tmf(ireq)->tmf_code == isci_tmf_sata_srst_low)) {
-                state = SCI_REQ_STP_SOFT_RESET_WAIT_H2D_ASSERTED;
         } else if (task && task->task_proto == SAS_PROTOCOL_SMP) {
                 state = SCI_REQ_SMP_WAIT_RESP;
         } else if (task && sas_protocol_ata(task->task_proto) &&
@@ -3272,31 +3119,6 @@ static void sci_stp_request_started_pio_await_h2d_completion_enter(struct sci_ba
         ireq->target_device->working_request = ireq;
 }
 
-static void sci_stp_request_started_soft_reset_await_h2d_asserted_completion_enter(struct sci_base_state_machine *sm)
-{
-        struct isci_request *ireq = container_of(sm, typeof(*ireq), sm);
-
-        ireq->target_device->working_request = ireq;
-}
-
-static void sci_stp_request_started_soft_reset_await_h2d_diagnostic_completion_enter(struct sci_base_state_machine *sm)
-{
-        struct isci_request *ireq = container_of(sm, typeof(*ireq), sm);
-        struct scu_task_context *tc = ireq->tc;
-        struct host_to_dev_fis *h2d_fis;
-        enum sci_status status;
-
-        /* Clear the SRST bit */
-        h2d_fis = &ireq->stp.cmd;
-        h2d_fis->control = 0;
-
-        /* Clear the TC control bit */
-        tc->control_frame = 0;
-
-        status = sci_controller_continue_io(ireq);
-        WARN_ONCE(status != SCI_SUCCESS, "isci: continue io failure\n");
-}
-
 static const struct sci_base_state sci_request_state_table[] = {
         [SCI_REQ_INIT] = { },
         [SCI_REQ_CONSTRUCTED] = { },
@@ -3315,13 +3137,6 @@ static const struct sci_base_state sci_request_state_table[] = {
         [SCI_REQ_STP_PIO_DATA_OUT] = { },
         [SCI_REQ_STP_UDMA_WAIT_TC_COMP] = { },
         [SCI_REQ_STP_UDMA_WAIT_D2H] = { },
-        [SCI_REQ_STP_SOFT_RESET_WAIT_H2D_ASSERTED] = {
-                .enter_state = sci_stp_request_started_soft_reset_await_h2d_asserted_completion_enter,
-        },
-        [SCI_REQ_STP_SOFT_RESET_WAIT_H2D_DIAG] = {
-                .enter_state = sci_stp_request_started_soft_reset_await_h2d_diagnostic_completion_enter,
-        },
-        [SCI_REQ_STP_SOFT_RESET_WAIT_D2H] = { },
         [SCI_REQ_TASK_WAIT_TC_COMP] = { },
         [SCI_REQ_TASK_WAIT_TC_RESP] = { },
         [SCI_REQ_SMP_WAIT_RESP] = { },