Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (39 commits)
  [SCSI] sd: fix compile failure with CONFIG_BLK_DEV_INTEGRITY=n
  libiscsi: fix locking in iscsi_eh_device_reset
  libiscsi: check reason why we are stopping iscsi session to determine error value
  [SCSI] iscsi_tcp: return a descriptive error value during connection errors
  [SCSI] libiscsi: rename host reset to target reset
  [SCSI] iscsi class: fix endpoint id handling
  [SCSI] libiscsi: Support drivers initiating session removal
  [SCSI] libiscsi: fix data corruption when target has to resend data-in packets
  [SCSI] sd: Switch kernel printing level for DIF messages
  [SCSI] sd: Correctly handle all combinations of DIF and DIX
  [SCSI] sd: Always print actual protection_type
  [SCSI] sd: Issue correct protection operation
  [SCSI] scsi_error: fix target reset handling
  [SCSI] lpfc 8.2.8 v2 : Add statistical reporting control and additional fc vendor events
  [SCSI] lpfc 8.2.8 v2 : Add sysfs control of target queue depth handling
  [SCSI] lpfc 8.2.8 v2 : Revert target busy in favor of transport disrupted
  [SCSI] scsi_dh_alua: remove REQ_NOMERGE
  [SCSI] lpfc 8.2.8 : update driver version to 8.2.8
  [SCSI] lpfc 8.2.8 : Add MSI-X support
  [SCSI] lpfc 8.2.8 : Update driver to use new Host byte error code DID_TRANSPORT_DISRUPTED
  ...

3 files changed, 24 insertions, 17 deletions

diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 0ddfe7106b3..ed731968f15 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1006,7 +1006,6 @@ qla2x00_terminate_rport_io(struct fc_rport *rport)
 	}
 
 	qla2x00_abort_fcport_cmds(fcport);
-	scsi_target_unblock(&rport->dev);
 }
 
 static int
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index fc4bfa7f839..a76efd99d00 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -1187,7 +1187,12 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt)
 		    cp->serial_number, comp_status,
 		    atomic_read(&fcport->state)));
 
-		cp->result = DID_BUS_BUSY << 16;
+		/*
+		 * We are going to have the fc class block the rport
+		 * while we try to recover so instruct the mid layer
+		 * to requeue until the class decides how to handle this.
+		 */
+		cp->result = DID_TRANSPORT_DISRUPTED << 16;
 		if (atomic_read(&fcport->state) == FCS_ONLINE)
 			qla2x00_mark_device_lost(fcport->ha, fcport, 1, 1);
 		break;
@@ -1214,7 +1219,12 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt)
 		break;
 
 	case CS_TIMEOUT:
-		cp->result = DID_BUS_BUSY << 16;
+		/*
+		 * We are going to have the fc class block the rport
+		 * while we try to recover so instruct the mid layer
+		 * to requeue until the class decides how to handle this.
+		 */
+		cp->result = DID_TRANSPORT_DISRUPTED << 16;
 
 		if (IS_FWI2_CAPABLE(ha)) {
 			DEBUG2(printk(KERN_INFO
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 3433441b956..2aed4721c0d 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -394,10 +394,8 @@ qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 	}
 
 	/* Close window on fcport/rport state-transitioning. */
-	if (fcport->drport) {
-		cmd->result = DID_IMM_RETRY << 16;
-		goto qc_fail_command;
-	}
+	if (fcport->drport)
+		goto qc_target_busy;
 
 	if (atomic_read(&fcport->state) != FCS_ONLINE) {
 		if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
@@ -405,7 +403,7 @@ qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 			cmd->result = DID_NO_CONNECT << 16;
 			goto qc_fail_command;
 		}
-		goto qc_host_busy;
+		goto qc_target_busy;
 	}
 
 	spin_unlock_irq(ha->host->host_lock);
@@ -428,10 +426,11 @@ qc_host_busy_free_sp:
 
 qc_host_busy_lock:
 	spin_lock_irq(ha->host->host_lock);
-
-qc_host_busy:
 	return SCSI_MLQUEUE_HOST_BUSY;
 
+qc_target_busy:
+	return SCSI_MLQUEUE_TARGET_BUSY;
+
 qc_fail_command:
 	done(cmd);
 
@@ -461,10 +460,8 @@ qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 	}
 
 	/* Close window on fcport/rport state-transitioning. */
-	if (fcport->drport) {
-		cmd->result = DID_IMM_RETRY << 16;
-		goto qc24_fail_command;
-	}
+	if (fcport->drport)
+		goto qc24_target_busy;
 
 	if (atomic_read(&fcport->state) != FCS_ONLINE) {
 		if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
@@ -472,7 +469,7 @@ qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 			cmd->result = DID_NO_CONNECT << 16;
 			goto qc24_fail_command;
 		}
-		goto qc24_host_busy;
+		goto qc24_target_busy;
 	}
 
 	spin_unlock_irq(ha->host->host_lock);
@@ -495,10 +492,11 @@ qc24_host_busy_free_sp:
 
 qc24_host_busy_lock:
 	spin_lock_irq(ha->host->host_lock);
-
-qc24_host_busy:
 	return SCSI_MLQUEUE_HOST_BUSY;
 
+qc24_target_busy:
+	return SCSI_MLQUEUE_TARGET_BUSY;
+
 qc24_fail_command:
 	done(cmd);