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| author | Darrick J. Wong <djwong@us.ibm.com> | 2007-01-11 14:15:46 -0800 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-01-13 16:23:40 -0600 |
| commit | 02cd743bb3a37f27681c487608fb819493fa4010 (patch) | |
| tree | 9641aa94df40d8b97aacca1fda9c054cd79491cf /drivers/scsi/libsas | |
| parent | 6b0efb8516a5298e12033df61f9e0c376a306adb (diff) | |
| download | op-kernel-dev-02cd743bb3a37f27681c487608fb819493fa4010.zip op-kernel-dev-02cd743bb3a37f27681c487608fb819493fa4010.tar.gz | |
[SCSI] libsas: Start I_T recovery if ABORT TASK fails
The EH should fall into I_T recovery (and potentially stronger
remedies) if ABORT TASK fails.
Signed-off-by: Alexis Bruemmer <alexisb@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/libsas')
| -rw-r--r-- | drivers/scsi/libsas/sas_scsi_host.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index 8a1b98e..9ffe760 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -281,6 +281,7 @@ enum task_disposition { TASK_IS_ABORTED, TASK_IS_AT_LU, TASK_IS_NOT_AT_LU, + TASK_ABORT_FAILED, }; static enum task_disposition sas_scsi_find_task(struct sas_task *task) @@ -331,15 +332,21 @@ static enum task_disposition sas_scsi_find_task(struct sas_task *task) SAS_DPRINTK("%s: querying task 0x%p\n", __FUNCTION__, task); res = si->dft->lldd_query_task(task); - if (res == TMF_RESP_FUNC_SUCC) { + switch (res) { + case TMF_RESP_FUNC_SUCC: SAS_DPRINTK("%s: task 0x%p at LU\n", __FUNCTION__, task); return TASK_IS_AT_LU; - } else if (res == TMF_RESP_FUNC_COMPLETE) { + case TMF_RESP_FUNC_COMPLETE: SAS_DPRINTK("%s: task 0x%p not at LU\n", __FUNCTION__, task); return TASK_IS_NOT_AT_LU; - } + case TMF_RESP_FUNC_FAILED: + SAS_DPRINTK("%s: task 0x%p failed to abort\n", + __FUNCTION__, task); + return TASK_ABORT_FAILED; + } + } } return res; @@ -475,6 +482,7 @@ Again: } /* fallthrough */ case TASK_IS_NOT_AT_LU: + case TASK_ABORT_FAILED: SAS_DPRINTK("task 0x%p is not at LU: I_T recover\n", task); tmf_resp = sas_recover_I_T(task->dev); |
