Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (679 commits)
  commit 7676f83aeb774e7a3abe6af06ec92b29488b5b79
  Author: James Bottomley <James.Bottomley@steeleye.com>
  Date:   Fri Apr 14 09:47:59 2006 -0500
  
      [SCSI] scsi_transport_sas: don't scan a non-existent end device
      
      Any end device that can't support any of the scanning protocols
      shouldn't be scanned, so set its id to -1 to prevent
      scsi_scan_target() being called for it.
      
      Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
  
  commit 3c0c25b97c7d020ef07f6366cf1d668a8e980c7c
  Author: Moore, Eric <Eric.Moore@lsil.com>
  Date:   Thu Apr 13 16:08:17 2006 -0600
  
      [SCSI] mptfusion - fix panic in mptsas_slave_configure
      
      Driver panic when RAID logical volume was present when driver
      loaded, or when a RAID logical volume was created on the fly.
  ...

1 files changed, 30 insertions, 11 deletions

diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
index cf3fec8be1e..5626225bd3a 100644
--- a/include/scsi/scsi_transport_fc.h
+++ b/include/scsi/scsi_transport_fc.h
@@ -202,12 +202,19 @@ struct fc_rport {	/* aka fc_starget_attrs */
 	/* internal data */
 	unsigned int channel;
 	u32 number;
+	u8 flags;
 	struct list_head peers;
 	struct device dev;
  	struct work_struct dev_loss_work;
  	struct work_struct scan_work;
+ 	struct work_struct stgt_delete_work;
+	struct work_struct rport_delete_work;
 } __attribute__((aligned(sizeof(unsigned long))));
 
+/* bit field values for struct fc_rport "flags" field: */
+#define FC_RPORT_DEVLOSS_PENDING	0x01
+#define FC_RPORT_SCAN_PENDING		0x02
+
 #define	dev_to_rport(d)				\
 	container_of(d, struct fc_rport, dev)
 #define transport_class_to_rport(classdev)	\
@@ -327,13 +334,16 @@ struct fc_host_attrs {
 	struct list_head rport_bindings;
 	u32 next_rport_number;
 	u32 next_target_id;
-	u8 flags;
- 	struct work_struct rport_del_work;
-};
 
-/* values for struct fc_host_attrs "flags" field: */
-#define FC_SHOST_RPORT_DEL_SCHEDULED	0x01
+	/* work queues for rport state manipulation */
+	char work_q_name[KOBJ_NAME_LEN];
+	struct workqueue_struct *work_q;
+	char devloss_work_q_name[KOBJ_NAME_LEN];
+	struct workqueue_struct *devloss_work_q;
+};
 
+#define shost_to_fc_host(x) \
+	((struct fc_host_attrs *)(x)->shost_data)
 
 #define fc_host_node_name(x) \
 	(((struct fc_host_attrs *)(x)->shost_data)->node_name)
@@ -375,10 +385,14 @@ struct fc_host_attrs {
 	(((struct fc_host_attrs *)(x)->shost_data)->next_rport_number)
 #define fc_host_next_target_id(x) \
 	(((struct fc_host_attrs *)(x)->shost_data)->next_target_id)
-#define fc_host_flags(x) \
-	(((struct fc_host_attrs *)(x)->shost_data)->flags)
-#define fc_host_rport_del_work(x) \
-	(((struct fc_host_attrs *)(x)->shost_data)->rport_del_work)
+#define fc_host_work_q_name(x) \
+	(((struct fc_host_attrs *)(x)->shost_data)->work_q_name)
+#define fc_host_work_q(x) \
+	(((struct fc_host_attrs *)(x)->shost_data)->work_q)
+#define fc_host_devloss_work_q_name(x) \
+	(((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q_name)
+#define fc_host_devloss_work_q(x) \
+	(((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q)
 
 
 /* The functions by which the transport class and the driver communicate */
@@ -461,10 +475,15 @@ fc_remote_port_chkready(struct fc_rport *rport)
 
 	switch (rport->port_state) {
 	case FC_PORTSTATE_ONLINE:
-		result = 0;
+		if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
+			result = 0;
+		else if (rport->flags & FC_RPORT_DEVLOSS_PENDING)
+			result = DID_IMM_RETRY << 16;
+		else
+			result = DID_NO_CONNECT << 16;
 		break;
 	case FC_PORTSTATE_BLOCKED:
-		result = DID_BUS_BUSY << 16;
+		result = DID_IMM_RETRY << 16;
 		break;
 	default:
 		result = DID_NO_CONNECT << 16;