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>
diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c
index 0e2a201..f7700cc 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;
}