Commit 5d339d16 authored by Hannes Reinecke's avatar Hannes Reinecke Committed by Martin K. Petersen
Browse files

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: default avatarHannes Reinecke <hare@suse.com>
Acked-by: default avatarJohannes Thumshirn <jth@kernel.org>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 8acf1b50

drivers/scsi/libfc/fc_fcp.c

+9 −3
Original line number Diff line number Diff line
@@ -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;

	}