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| author | John Garry <john.garry@huawei.com> | 2022-02-17 18:42:44 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-02-19 23:59:36 +0300 |
| commit | 72f8810e1fdcd52deedfd294497fa8337703a632 (patch) | |
| tree | 9d2d87f55a2f0db40a6704addda3b2af4be1872c /drivers/scsi/libsas | |
| parent | 29d7769055a21968c0bbfe866affe1640d90bd1d (diff) | |
| download | linux-72f8810e1fdcd52deedfd294497fa8337703a632.tar.xz | |
scsi: libsas: Add sas_query_task()
Add a generic implementation of query task TMF handler, and use in LLDDs.
Link: https://lore.kernel.org/r/1645112566-115804-17-git-send-email-john.garry@huawei.com
Tested-by: Yihang Li <liyihang6@hisilicon.com>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/libsas')
| -rw-r--r-- | drivers/scsi/libsas/sas_scsi_host.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index d6f29e13204e..1923a0627ce7 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -1073,6 +1073,22 @@ int sas_lu_reset(struct domain_device *dev, u8 *lun) } EXPORT_SYMBOL_GPL(sas_lu_reset); +int sas_query_task(struct sas_task *task, u16 tag) +{ + struct sas_tmf_task tmf_task = { + .tmf = TMF_QUERY_TASK, + .tag_of_task_to_be_managed = tag, + }; + struct scsi_cmnd *cmnd = task->uldd_task; + struct domain_device *dev = task->dev; + struct scsi_lun lun; + + int_to_scsilun(cmnd->device->lun, &lun); + + return sas_execute_ssp_tmf(dev, lun.scsi_lun, &tmf_task); +} +EXPORT_SYMBOL_GPL(sas_query_task); + /* * Tell an upper layer that it needs to initiate an abort for a given task. * This should only ever be called by an LLDD. |