diff options
| author |  Quinn Tran <qutran@marvell.com>
| 2023-08-21 18:30:39 +0530 |
|---|---|---|
| committer |  Martin K. Petersen <martin.petersen@oracle.com>
| 2023-08-21 17:45:14 -0400 |
| commit | e370b64c7db96384a0886a09a9d80406e4c663d7 (patch) | |
| tree | 7046621806c6ffc0b9851f925d7e8b8a0b5d5c16 /drivers/scsi/qla2xxx/qla_init.c | |
| parent | scsi: qla2xxx: Flush mailbox commands on chip reset (diff) | |
| download | linux-e370b64c7db96384a0886a09a9d80406e4c663d7.tar.gz linux-e370b64c7db96384a0886a09a9d80406e4c663d7.tar.bz2 linux-e370b64c7db96384a0886a09a9d80406e4c663d7.zip | |
scsi: qla2xxx: Fix firmware resource tracking
The storage was not draining I/Os and the work load was not spread out
across different CPUs evenly. This led to firmware resource counters
getting overrun on the busy CPU. This overrun prevented error recovery from
happening in a timely manner.
By switching the counter to atomic, it allows the count to be little more
accurate to prevent the overrun.
Cc: stable@vger.kernel.org
Fixes: da7c21b72aa8 ("scsi: qla2xxx: Fix command flush during TMF")
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20230821130045.34850-4-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_init.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_init.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index d38b77a29637..d9a7d63001bd 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -4214,6 +4214,14 @@ void qla_init_iocb_limit(scsi_qla_host_t *vha) ha->queue_pair_map[i]->fwres.exch_used = 0; } } + + ha->fwres.iocb_total = ha->orig_fw_iocb_count; + ha->fwres.iocb_limit = (ha->orig_fw_iocb_count * QLA_IOCB_PCT_LIMIT) / 100; + ha->fwres.exch_total = ha->orig_fw_xcb_count; + ha->fwres.exch_limit = (ha->orig_fw_xcb_count * QLA_IOCB_PCT_LIMIT) / 100; + + atomic_set(&ha->fwres.iocb_used, 0); + atomic_set(&ha->fwres.exch_used, 0); } void qla_adjust_iocb_limit(scsi_qla_host_t *vha) |