commit 754d1243915d0fda6874fa0f1a926d85eb09e0b4
author Giridhar Malavali <giridhar.malavali@qlogic.com> Tue Jun 25 11:27:16 2013 -0400
committer James Bottomley <JBottomley@Parallels.com> Mon Jul 08 17:10:50 2013 +0100
tree 9da0f631c0641f3832df608de3a88b8682c676b4
parent bb6a4df6db9e69e225bfc5a9d95a1675342e1873

[SCSI] qla2xxx: Clear the MBX_INTR_WAIT flag when the mailbox time-out happens.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

drivers/scsi/qla2xxx/qla_dbg.c

diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c
index cfa2a20..3cc2105 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.c
+++ b/drivers/scsi/qla2xxx/qla_dbg.c
@@ -12,7 +12,7 @@
  * |             Level            |   Last Value Used  |     Holes	|
  * ----------------------------------------------------------------------
  * | Module Init and Probe        |       0x014f       | 0x4b,0xba,0xfa |
- * | Mailbox commands             |       0x1179       | 0x111a-0x111b  |
+ * | Mailbox commands             |       0x117a       | 0x111a-0x111b  |
  * |                              |                    | 0x1155-0x1158  |
  * | Device Discovery             |       0x2095       | 0x2020-0x2022, |
  * |                              |                    | 0x2016         |

drivers/scsi/qla2xxx/qla_mbx.c

diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 3587ec2..144effd 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -177,8 +177,14 @@
 			WRT_REG_WORD(&reg->isp.hccr, HCCR_SET_HOST_INT);
 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
 
-		wait_for_completion_timeout(&ha->mbx_intr_comp, mcp->tov * HZ);
-
+		if (!wait_for_completion_timeout(&ha->mbx_intr_comp,
+		    mcp->tov * HZ)) {
+			ql_dbg(ql_dbg_mbx, vha, 0x117a,
+			    "cmd=%x Timeout.\n", command);
+			spin_lock_irqsave(&ha->hardware_lock, flags);
+			clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
+			spin_unlock_irqrestore(&ha->hardware_lock, flags);
+		}
 	} else {
 		ql_dbg(ql_dbg_mbx, vha, 0x1011,
 		    "Cmd=%x Polling Mode.\n", command);