diff options
| author |   Jeff Skirvin <jeffrey.d.skirvin@intel.com> | 2012-03-08 22:41:50 -0800 |
|---|---|---|
| committer |   Dan Williams <dan.j.williams@intel.com> | 2012-05-17 14:33:37 -0700 |
| commit | 726980d56908f2e230624394f03743689db3110c (patch) | |
| tree | 6aca898ea8f57c276088feb2eed5770fba6dfd86 /drivers/scsi/isci/request.c | |
| parent | isci: Handle all suspending TC completions (diff) | |
| download | linux-dev-726980d56908f2e230624394f03743689db3110c.tar.xz linux-dev-726980d56908f2e230624394f03743689db3110c.zip | |
isci: Terminate outstanding TCs on TX/RX RNC suspensions.
TCs must only be terminated when RNCs are suspended.
Signed-off-by: Jeff Skirvin <jeffrey.d.skirvin@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/scsi/isci/request.c')
| -rw-r--r-- | drivers/scsi/isci/request.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index 605dc68cbf79..1f314d0d71d5 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -863,6 +863,8 @@ sci_io_request_terminate(struct isci_request *ireq) switch (state) { case SCI_REQ_CONSTRUCTED: + /* Set to make sure no HW terminate posting is done: */ + set_bit(IREQ_TC_ABORT_POSTED, &ireq->flags); ireq->scu_status = SCU_TASK_DONE_TASK_ABORT; ireq->sci_status = SCI_FAILURE_IO_TERMINATED; sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); @@ -883,8 +885,7 @@ sci_io_request_terminate(struct isci_request *ireq) case SCI_REQ_ATAPI_WAIT_PIO_SETUP: case SCI_REQ_ATAPI_WAIT_D2H: case SCI_REQ_ATAPI_WAIT_TC_COMP: - sci_change_state(&ireq->sm, SCI_REQ_ABORTING); - return SCI_SUCCESS; + /* Fall through and change state to ABORTING... */ case SCI_REQ_TASK_WAIT_TC_RESP: /* The task frame was already confirmed to have been * sent by the SCU HW. Since the state machine is @@ -893,20 +894,21 @@ sci_io_request_terminate(struct isci_request *ireq) * and don't wait for the task response. */ sci_change_state(&ireq->sm, SCI_REQ_ABORTING); - sci_change_state(&ireq->sm, SCI_REQ_COMPLETED); - return SCI_SUCCESS; + /* Fall through and handle like ABORTING... */ case SCI_REQ_ABORTING: - /* If a request has a termination requested twice, return - * a failure indication, since HW confirmation of the first - * abort is still outstanding. + if (!isci_remote_device_is_safe_to_abort(ireq->target_device)) + set_bit(IREQ_PENDING_ABORT, &ireq->flags); + else + clear_bit(IREQ_PENDING_ABORT, &ireq->flags); + /* If the request is only waiting on the remote device + * suspension, return SUCCESS so the caller will wait too. */ + return SCI_SUCCESS; case SCI_REQ_COMPLETED: default: dev_warn(&ireq->owning_controller->pdev->dev, "%s: SCIC IO Request requested to abort while in wrong " - "state %d\n", - __func__, - ireq->sm.current_state_id); + "state %d\n", __func__, ireq->sm.current_state_id); break; } |