diff options
| author | Kai Mäkisara <Kai.Makisara@kolumbus.fi> | 2025-01-20 21:49:23 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2025-02-03 17:43:31 -0500 |
| commit | a5d518cd4e3e592eaa59b888a5d75ad639d554ea (patch) | |
| tree | a07a4dcbac055daa54fe44ebe9583c39112e485a /drivers/scsi/scsi_error.c | |
| parent | 7081dc75df79696d8322d01821c28e53416c932c (diff) | |
scsi: core: Add counters for New Media and Power On/Reset UNIT ATTENTIONs
The purpose of the counters is to enable all ULDs attached to a device to
find out that a New Media or/and Power On/Reset Unit Attentions has/have
been set, even if another ULD catches the Unit Attention as response to a
SCSI command.
The ULDs can read the counters and see if the values have changed from the
previous check.
Signed-off-by: Kai Mäkisara <Kai.Makisara@kolumbus.fi>
Link: https://lore.kernel.org/r/20250120194925.44432-3-Kai.Makisara@kolumbus.fi
Reviewed-by: John Meneghini <jmeneghi@redhat.com>
Tested-by: John Meneghini <jmeneghi@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/scsi_error.c')
| -rw-r--r-- | drivers/scsi/scsi_error.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 815e7d63f3e2..ec60e8a96b11 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -547,6 +547,18 @@ enum scsi_disposition scsi_check_sense(struct scsi_cmnd *scmd) scsi_report_sense(sdev, &sshdr); + if (sshdr.sense_key == UNIT_ATTENTION) { + /* + * Increment the counters for Power on/Reset or New Media so + * that all ULDs interested in these can see that those have + * happened, even if someone else gets the sense data. + */ + if (sshdr.asc == 0x28) + scmd->device->ua_new_media_ctr++; + else if (sshdr.asc == 0x29) + scmd->device->ua_por_ctr++; + } + if (scsi_sense_is_deferred(&sshdr)) return NEEDS_RETRY; |