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| author | Narsimhulu Musini <nmusini@cisco.com> | 2016-03-17 00:51:10 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-04-11 16:57:09 -0400 |
| commit | 3f5c11a463fd87b912f16976ff0ee3d6bbd1825e (patch) | |
| tree | 76041b5c73811c3622cda73c0bf89e6ad1efb0e5 /drivers/scsi/snic/snic_main.c | |
| parent | 45cc807291d5fde7a6691a06c0ca9f472fa3fb15 (diff) | |
| download | op-kernel-dev-3f5c11a463fd87b912f16976ff0ee3d6bbd1825e.zip op-kernel-dev-3f5c11a463fd87b912f16976ff0ee3d6bbd1825e.tar.gz | |
snic: Added additional stats
Adding additional stats, and fixed logging messages.
- Added qdepth change stats
- Added separate isr stats for each type of interrupt
- Fixed race in updating active IOs
- Suppressed Link event message for DAS backend.
Signed-off-by: Narsimhulu Musini <nmusini@cisco.com>
Signed-off-by: Sesidhar Baddela <sebaddel@cisco.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/snic/snic_main.c')
| -rw-r--r-- | drivers/scsi/snic/snic_main.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/scsi/snic/snic_main.c b/drivers/scsi/snic/snic_main.c index 2b3c253..37ec507 100644 --- a/drivers/scsi/snic/snic_main.c +++ b/drivers/scsi/snic/snic_main.c @@ -98,11 +98,18 @@ snic_slave_configure(struct scsi_device *sdev) static int snic_change_queue_depth(struct scsi_device *sdev, int qdepth) { + struct snic *snic = shost_priv(sdev->host); int qsz = 0; qsz = min_t(u32, qdepth, SNIC_MAX_QUEUE_DEPTH); + if (qsz < sdev->queue_depth) + atomic64_inc(&snic->s_stats.misc.qsz_rampdown); + else if (qsz > sdev->queue_depth) + atomic64_inc(&snic->s_stats.misc.qsz_rampup); + + atomic64_set(&snic->s_stats.misc.last_qsz, sdev->queue_depth); + scsi_change_queue_depth(sdev, qsz); - SNIC_INFO("QDepth Changed to %d\n", sdev->queue_depth); return sdev->queue_depth; } |
