From aa14510295d3d87431c915c0b2bc5dd3af7f2c35 Mon Sep 17 00:00:00 2001 From: Jeff Skirvin Date: Mon, 7 Mar 2011 16:40:47 -0700 Subject: [PATCH] isci: Always set response/status for requests going into the error path. In the case of I/O requests being failed because of a required device reset condition, set the response and status to indicate an I/O failure. Signed-off-by: Jeff Skirvin Signed-off-by: Dan Williams --- drivers/scsi/isci/request.c | 28 ++++++++++++++++------------ drivers/scsi/isci/task.h | 13 +++++++++---- 2 files changed, 25 insertions(+), 16 deletions(-) diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index f19a952754b9..015643104311 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -809,11 +809,11 @@ static void isci_task_save_for_upper_layer_completion( /* Normal notification (task_done) */ dev_dbg(&host->pdev->dev, - "%s: Normal - task = %p, response=%d, status=%d\n", + "%s: Normal - task = %p, response=%d (%d), status=%d (%d)\n", __func__, task, - response, - status); + task->task_status.resp, response, + task->task_status.stat, status); /* Add to the completed list. */ list_add(&request->completed_node, &host->requests_to_complete); @@ -827,11 +827,11 @@ static void isci_task_save_for_upper_layer_completion( * already in the abort path. */ dev_warn(&host->pdev->dev, - "%s: Aborted - task = %p, response=%d, status=%d\n", + "%s: Aborted - task = %p, response=%d (%d), status=%d (%d)\n", __func__, task, - response, - status); + task->task_status.resp, response, + task->task_status.stat, status); /* Wake up whatever process was waiting for this * request to complete. @@ -850,11 +850,11 @@ static void isci_task_save_for_upper_layer_completion( case isci_perform_error_io_completion: /* Use sas_task_abort */ dev_warn(&host->pdev->dev, - "%s: Error - task = %p, response=%d, status=%d\n", + "%s: Error - task = %p, response=%d (%d), status=%d (%d)\n", __func__, task, - response, - status); + task->task_status.resp, response, + task->task_status.stat, status); /* Add to the aborted list. */ list_add(&request->completed_node, &host->requests_to_errorback); @@ -862,11 +862,11 @@ static void isci_task_save_for_upper_layer_completion( default: dev_warn(&host->pdev->dev, - "%s: Unknown - task = %p, response=%d, status=%d\n", + "%s: Unknown - task = %p, response=%d (%d), status=%d (%d)\n", __func__, task, - response, - status); + task->task_status.resp, response, + task->task_status.stat, status); /* Add to the error to libsas list. */ list_add(&request->completed_node, @@ -1165,6 +1165,10 @@ void isci_request_io_request_complete( task->task_state_flags |= SAS_TASK_NEED_DEV_RESET; spin_unlock_irqrestore(&task->task_state_lock, task_flags); + /* Fail the I/O. */ + response = SAS_TASK_UNDELIVERED; + status = SAM_STAT_TASK_ABORTED; + complete_to_host = isci_perform_error_io_completion; request->complete_in_target = false; break; diff --git a/drivers/scsi/isci/task.h b/drivers/scsi/isci/task.h index e1c9c8f04050..b84bedd94601 100644 --- a/drivers/scsi/isci/task.h +++ b/drivers/scsi/isci/task.h @@ -302,14 +302,19 @@ isci_task_set_completion_status( spin_lock_irqsave(&task->task_state_lock, flags); - task->task_status.resp = response; - task->task_status.stat = status; - /* If a device reset is being indicated, make sure the I/O * is in the error path. */ - if (task->task_state_flags & SAS_TASK_NEED_DEV_RESET) + if (task->task_state_flags & SAS_TASK_NEED_DEV_RESET) { + + /* Fail the I/O to make sure it goes into the error path. */ + response = SAS_TASK_UNDELIVERED; + status = SAM_STAT_TASK_ABORTED; + task_notification_selection = isci_perform_error_io_completion; + } + task->task_status.resp = response; + task->task_status.stat = status; switch (task_notification_selection) {