diff options
| author | Hannes Reinecke <hare@suse.de> | 2016-10-13 16:10:48 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-11-09 01:29:52 +0300 |
| commit | 5d339d163a541ceb13074789ac2f8c35b11ebda9 (patch) | |
| tree | 9b4a33a386db68b380c49f446c932ed30d40652b /drivers/scsi/libfc/fc_fcp.c | |
| parent | 8acf1b50cfa44c8260fb1fcf7464a4eee69aefcf (diff) | |
| download | linux-5d339d163a541ceb13074789ac2f8c35b11ebda9.tar.xz | |
scsi: libfc: Clarify ramp-down messages
When the queue depth is reduced we should print out the reason
for this; it might be due to a queue full condition.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Acked-by: Johannes Thumshirn <jth@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/libfc/fc_fcp.c')
| -rw-r--r-- | drivers/scsi/libfc/fc_fcp.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c index 0e2a2016af71..f7700cccf793 100644 --- a/drivers/scsi/libfc/fc_fcp.c +++ b/drivers/scsi/libfc/fc_fcp.c @@ -403,8 +403,6 @@ static void fc_fcp_can_queue_ramp_down(struct fc_lport *lport) if (!can_queue) can_queue = 1; lport->host->can_queue = can_queue; - shost_printk(KERN_ERR, lport->host, "libfc: Could not allocate frame.\n" - "Reducing can_queue to %d.\n", can_queue); unlock: spin_unlock_irqrestore(lport->host->host_lock, flags); @@ -431,6 +429,9 @@ static inline struct fc_frame *fc_fcp_frame_alloc(struct fc_lport *lport, put_cpu(); /* error case */ fc_fcp_can_queue_ramp_down(lport); + shost_printk(KERN_ERR, lport->host, + "libfc: Could not allocate frame, " + "reducing can_queue to %d.\n", lport->host->can_queue); return NULL; } @@ -1860,8 +1861,13 @@ int fc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *sc_cmd) rpriv = rport->dd_data; if (!fc_fcp_lport_queue_ready(lport)) { - if (lport->qfull) + if (lport->qfull) { fc_fcp_can_queue_ramp_down(lport); + shost_printk(KERN_ERR, lport->host, + "libfc: queue full, " + "reducing can_queue to %d.\n", + lport->host->can_queue); + } rc = SCSI_MLQUEUE_HOST_BUSY; goto out; } |