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| author | Jeff Skirvin <jeffrey.d.skirvin@intel.com> | 2011-06-23 17:09:02 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2011-07-03 04:04:51 -0700 |
| commit | 9274f45ea551421cd3bf329de9dd8d1e6208285a (patch) | |
| tree | 25e21494d3c74a5b2965485f2d76c541d49cc68b /drivers/scsi/isci/request.c | |
| parent | 4cffe13e0dfd00f90c86b0153c751dab61a1bf1d (diff) | |
| download | kernel_samsung_smdk4412-9274f45ea551421cd3bf329de9dd8d1e6208285a.zip kernel_samsung_smdk4412-9274f45ea551421cd3bf329de9dd8d1e6208285a.tar.gz kernel_samsung_smdk4412-9274f45ea551421cd3bf329de9dd8d1e6208285a.tar.bz2 | |
isci: Terminate dev requests on FIS err bit rx in NCQ
When the remote device transitions to a not-ready state because of
an NCQ error condition, all outstanding requests to that device
are terminated and completed to libsas on the normal path. The
device then waits for a READ LOG EXT command to issue on the task
management path.
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 | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index 1043fed..08a7340b 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -3587,9 +3587,30 @@ int isci_request_execute(struct isci_host *ihost, struct isci_remote_device *ide spin_lock_irqsave(&ihost->scic_lock, flags); - /* send the request, let the core assign the IO TAG. */ - status = scic_controller_start_io(&ihost->sci, &idev->sci, &ireq->sci, - SCI_CONTROLLER_INVALID_IO_TAG); + if (test_bit(IDEV_IO_NCQERROR, &idev->flags)) { + + if (isci_task_is_ncq_recovery(task)) { + + /* The device is in an NCQ recovery state. Issue the + * request on the task side. Note that it will + * complete on the I/O request side because the + * request was built that way (ie. + * ireq->is_task_management_request is false). + */ + status = scic_controller_start_task(&ihost->sci, + &idev->sci, + &ireq->sci, + SCI_CONTROLLER_INVALID_IO_TAG); + } else { + status = SCI_FAILURE; + } + } else { + + /* send the request, let the core assign the IO TAG. */ + status = scic_controller_start_io(&ihost->sci, &idev->sci, + &ireq->sci, + SCI_CONTROLLER_INVALID_IO_TAG); + } if (status != SCI_SUCCESS && status != SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED) { dev_warn(&ihost->pdev->dev, |