diff options
| author | Martin K. Petersen <martin.petersen@oracle.com> | 2025-02-03 17:52:32 -0500 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2025-02-03 17:52:32 -0500 |
| commit | 026476271efe817b970ea360981ee77919bcdbad (patch) | |
| tree | e783ed2abbd6d274683c5fc13dc2ac440809d979 /drivers/scsi/scsi_error.c | |
| parent | 14807b4a4e03b66c26f4c82f495fc8fbe35fb95d (diff) | |
| parent | 2c445d5f832a51dfd8527fcce7323f79d37c0432 (diff) | |
Merge patch series "scsi: st: scsi_error: More reset patches"
Kai Mäkisara <Kai.Makisara@kolumbus.fi> says:
The first patch re-applies after device reset some settings changed
by the user (partition, density, block size).
The second and third patch address the case where more than one ULD
access the same device. The Unit Attention (UA) sense data is sent only
to one ULD and the others miss it. The st driver needs to find out
if device reset or media change has happened.
The second patch adds counters for New Media and Power On/Reset (POR)
Unit Attentions to the scsi_device struct. The third one changes st
so that these are used: if the value in the scsi_device struct does
not match the one stored locally, the corresponding UA has happened.
Use of the was_reset flag has been removed.
The fourth patch adds a file to sysfs to tell the user if reads/writes
to a tape are blocked following a device reset.
Link: https://lore.kernel.org/r/20250120194925.44432-1-Kai.Makisara@kolumbus.fi
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; |