diff options
| author | Kai Mäkisara <Kai.Makisara@kolumbus.fi> | 2025-01-20 21:49:24 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2025-02-03 17:43:31 -0500 |
| commit | 341128dfe10a7c8681d86e81b5bc63902da644ef (patch) | |
| tree | 1eaa84acc9d5cbe5f1f1c2d5af56bf5fc74ba82b /include/scsi | |
| parent | a5d518cd4e3e592eaa59b888a5d75ad639d554ea (diff) | |
scsi: st: Modify st.c to use the new scsi_error counters
Compare the stored values of por_ctr and new_media_ctr against the values
in the device struct. In case of mismatch, the Unit Attention corresponding
to the counter has happened. This is a safeguard against another ULD
catching the Unit Attention sense data.
Macros scsi_get_ua_new_media_ctr and scsi_get_ua_por_ctr are added to read
the current values of the counters.
Signed-off-by: Kai Mäkisara <Kai.Makisara@kolumbus.fi>
Link: https://lore.kernel.org/r/20250120194925.44432-4-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 'include/scsi')
| -rw-r--r-- | include/scsi/scsi_device.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index bcc76986096b..68dd49947d04 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -687,6 +687,12 @@ static inline int scsi_device_busy(struct scsi_device *sdev) return sbitmap_weight(&sdev->budget_map); } +/* Macros to access the UNIT ATTENTION counters */ +#define scsi_get_ua_new_media_ctr(sdev) \ + ((const unsigned int)(sdev->ua_new_media_ctr)) +#define scsi_get_ua_por_ctr(sdev) \ + ((const unsigned int)(sdev->ua_por_ctr)) + #define MODULE_ALIAS_SCSI_DEVICE(type) \ MODULE_ALIAS("scsi:t-" __stringify(type) "*") #define SCSI_DEVICE_MODALIAS_FMT "scsi:t-0x%02x" |