[PATCH] PATCH [5/15] qla2xxx: Debug messages during ISP abort

  Issue a kernel warning message before initiating an ISP abort (big
  hammer) -- additional debugging mechanism in case of event.

 drivers/scsi/qla2xxx/qla_mbx.c  |    9 +++++++++
 drivers/scsi/qla2xxx/qla_os.c   |    2 ++
 drivers/scsi/qla2xxx/qla_rscn.c |    2 ++
 3 files changed, 13 insertions(+)

drivers/scsi/qla2xxx/qla_mbx.c

@@ -279,6 +279,9 @@ qla2x00_mailbox_command(scsi_qla_host_t *ha, mbx_cmd_t *mcp)
 			DEBUG2_3_11(printk("qla2x00_mailbox_command(%ld): "
 			    "timeout schedule isp_abort_needed.\n",
 			    ha->host_no);)
+			qla_printk(KERN_WARNING, ha,
+			    "Mailbox command timeout occured. Scheduling ISP "
+			    "abort.\n");
 			set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
 			if (ha->dpc_wait && !ha->dpc_active) 
 				up(ha->dpc_wait);
@@ -290,6 +293,9 @@ qla2x00_mailbox_command(scsi_qla_host_t *ha, mbx_cmd_t *mcp)
 			    "calling abort_isp\n", ha->host_no);)
 			DEBUG2_3_11(printk("qla2x00_mailbox_command(%ld): "
 			    "timeout calling abort_isp\n", ha->host_no);)
+			qla_printk(KERN_WARNING, ha,
+			    "Mailbox command timeout occured. Issuing ISP "
+			    "abort.\n");
 
 			set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
 			clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
@@ -1062,6 +1068,9 @@ qla2x00_abort_device(scsi_qla_host_t *ha, uint16_t loop_id, uint16_t lun)
 	qla2x00_marker(ha, loop_id, lun, MK_SYNC_ID_LUN);
 
 	if (rval != QLA_SUCCESS) {
+		qla_printk(KERN_WARNING, ha,
+		    "Failed Abort Device Mailbox command. Scheduling ISP "
+		    "abort.\n");
 		set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
 		if (ha->dpc_wait && !ha->dpc_active) 
 			up(ha->dpc_wait);

drivers/scsi/qla2xxx/qla_os.c

@@ -3856,6 +3856,8 @@ qla2x00_timer(scsi_qla_host_t *ha)
 				DEBUG(printk("scsi(%ld): Loop down - "
 				    "aborting ISP.\n",
 				    ha->host_no));
+				qla_printk(KERN_WARNING, ha,
+				    "Loop down - aborting ISP.\n");
 
 				set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
 			}

drivers/scsi/qla2xxx/qla_rscn.c

@@ -283,6 +283,8 @@ qla2x00_iodesc_timeout(unsigned long data)
 
 	qla2x00_free_iodesc(iodesc);
 
+	qla_printk(KERN_WARNING, iodesc->ha,
+	    "IO descriptor timeout. Scheduling ISP abort.\n");
 	set_bit(ISP_ABORT_NEEDED, &iodesc->ha->dpc_flags);
 }