linux-kernel - [ 17/99] SCSI: qla2xxx: Properly set the tagging for commands.

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Message-Id: <20130802100228.445986941@linuxfoundation.org>
Date:	Fri,  2 Aug 2013 18:07:30 +0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Jack Hill <jackhill@...khill.us>,
	Saurav Kashyap <saurav.kashyap@...gic.com>,
	Giridhar Malavali <giridhar.malavali@...gic.com>,
	James Bottomley <JBottomley@...allels.com>
Subject: [ 17/99] SCSI: qla2xxx: Properly set the tagging for commands.

3.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Saurav Kashyap <saurav.kashyap@...gic.com>

commit c3ccb1d7cf4c4549151876dd37c0944a682fd9e1 upstream.

This fixes a regression where Xyratex controllers and disks were lost by the
driver:

https://bugzilla.kernel.org/show_bug.cgi?id=59601

Reported-by: Jack Hill <jackhill@...khill.us>
Signed-off-by: Saurav Kashyap <saurav.kashyap@...gic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@...gic.com>
Signed-off-by: James Bottomley <JBottomley@...allels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/scsi/qla2xxx/qla_iocb.c |   11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -419,6 +419,8 @@ qla2x00_start_scsi(srb_t *sp)
 			    __constant_cpu_to_le16(CF_SIMPLE_TAG);
 			break;
 		}
+	} else {
+		cmd_pkt->control_flags = __constant_cpu_to_le16(CF_SIMPLE_TAG);
 	}
 
 	/* Load SCSI command packet. */
@@ -1308,11 +1310,11 @@ qla24xx_build_scsi_crc_2_iocbs(srb_t *sp
 		    fcp_cmnd->task_attribute = TSK_ORDERED;
 		    break;
 		default:
-		    fcp_cmnd->task_attribute = 0;
+		    fcp_cmnd->task_attribute = TSK_SIMPLE;
 		    break;
 		}
 	} else {
-		fcp_cmnd->task_attribute = 0;
+		fcp_cmnd->task_attribute = TSK_SIMPLE;
 	}
 
 	cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */
@@ -1527,7 +1529,12 @@ qla24xx_start_scsi(srb_t *sp)
 		case ORDERED_QUEUE_TAG:
 			cmd_pkt->task = TSK_ORDERED;
 			break;
+		default:
+		    cmd_pkt->task = TSK_SIMPLE;
+		    break;
 		}
+	} else {
+		cmd_pkt->task = TSK_SIMPLE;
 	}
 
 	/* Load SCSI command packet. */


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