diff options
| author | Ranjan Kumar <ranjan.kumar@broadcom.com> | 2023-03-16 14:02:05 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-03-17 06:54:29 +0300 |
| commit | f1dec6b1e25e755cbccb728eee898fc7d005069e (patch) | |
| tree | 9cef1a24830dba37f478836f1e7344c3fb9b7947 /drivers/scsi/mpi3mr | |
| parent | 22beef38e52c69488a0633806a136c40c4ff8ca2 (diff) | |
| download | linux-f1dec6b1e25e755cbccb728eee898fc7d005069e.tar.xz | |
scsi: mpi3mr: Avoid escalating to higher level reset when target is removed
SCSI error handling has taken place for timed out I/Os on a drive and the
corresponding drive is removed. Stop escalating to higher level of reset by
returning the TUR with "I_T NEXUS LOSS OCCURRED" sense key.
Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Link: https://lore.kernel.org/r/20230316110209.60145-5-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/mpi3mr')
| -rw-r--r-- | drivers/scsi/mpi3mr/mpi3mr_os.c | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c index 7ebd00dfd396..b5daa76e8628 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_os.c +++ b/drivers/scsi/mpi3mr/mpi3mr_os.c @@ -4015,10 +4015,14 @@ static int mpi3mr_eh_target_reset(struct scsi_cmnd *scmd) stgt_priv_data = sdev_priv_data->tgt_priv_data; dev_handle = stgt_priv_data->dev_handle; if (stgt_priv_data->dev_removed) { + struct scmd_priv *cmd_priv = scsi_cmd_priv(scmd); sdev_printk(KERN_INFO, scmd->device, "%s:target(handle = 0x%04x) is removed, target reset is not issued\n", mrioc->name, dev_handle); - retval = FAILED; + if (!cmd_priv->in_lld_scope || cmd_priv->host_tag == MPI3MR_HOSTTAG_INVALID) + retval = SUCCESS; + else + retval = FAILED; goto out; } sdev_printk(KERN_INFO, scmd->device, @@ -4083,10 +4087,14 @@ static int mpi3mr_eh_dev_reset(struct scsi_cmnd *scmd) stgt_priv_data = sdev_priv_data->tgt_priv_data; dev_handle = stgt_priv_data->dev_handle; if (stgt_priv_data->dev_removed) { + struct scmd_priv *cmd_priv = scsi_cmd_priv(scmd); sdev_printk(KERN_INFO, scmd->device, "%s: device(handle = 0x%04x) is removed, device(LUN) reset is not issued\n", mrioc->name, dev_handle); - retval = FAILED; + if (!cmd_priv->in_lld_scope || cmd_priv->host_tag == MPI3MR_HOSTTAG_INVALID) + retval = SUCCESS; + else + retval = FAILED; goto out; } sdev_printk(KERN_INFO, scmd->device, @@ -4644,13 +4652,24 @@ static int mpi3mr_qcmd(struct Scsi_Host *shost, goto out; } + stgt_priv_data = sdev_priv_data->tgt_priv_data; + dev_handle = stgt_priv_data->dev_handle; + + /* Avoid error handling escalation when device is removed or blocked */ + + if (scmd->device->host->shost_state == SHOST_RECOVERY && + scmd->cmnd[0] == TEST_UNIT_READY && + (stgt_priv_data->dev_removed || (dev_handle == MPI3MR_INVALID_DEV_HANDLE))) { + scsi_build_sense(scmd, 0, UNIT_ATTENTION, 0x29, 0x07); + scsi_done(scmd); + goto out; + } + if (mrioc->reset_in_progress) { retval = SCSI_MLQUEUE_HOST_BUSY; goto out; } - stgt_priv_data = sdev_priv_data->tgt_priv_data; - if (atomic_read(&stgt_priv_data->block_io)) { if (mrioc->stop_drv_processing) { scmd->result = DID_NO_CONNECT << 16; @@ -4661,7 +4680,6 @@ static int mpi3mr_qcmd(struct Scsi_Host *shost, goto out; } - dev_handle = stgt_priv_data->dev_handle; if (dev_handle == MPI3MR_INVALID_DEV_HANDLE) { scmd->result = DID_NO_CONNECT << 16; scsi_done(scmd); |