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

author: Greg Kroah-Hartman <gregkh@suse.de> 2006-08-26 13:04:23 -0700
committer: Greg Kroah-Hartman <gregkh@suse.de> 2006-08-26 13:04:23 -0700
commit: f834c755423332a6ff4397fae754029a6a7a8249 (patch)
tree: 004266b9612a69484a5dc0dc3d6db0d1e5ab60d5 /drivers
parent: 62250b3bb596ffbae17c4b3d865fecd6329ce8b3 (diff)
parent: 0db99e3359234be181590463184b9959059a9ea9 (diff)
43 files changed, 930 insertions, 1259 deletions
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c
index 34b0da5cfa0..1437d7ee3b1 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -378,21 +378,6 @@ iscsi_iser_conn_start(struct iscsi_cls_conn *cls_conn)
 	return iser_conn_set_full_featured_mode(conn);
 }
 
-static void
-iscsi_iser_conn_terminate(struct iscsi_conn *conn)
-{
-	struct iscsi_iser_conn *iser_conn = conn->dd_data;
-	struct iser_conn *ib_conn = iser_conn->ib_conn;
-
-	BUG_ON(!ib_conn);
-	/* starts conn teardown process, waits until all previously   *
-	 * posted buffers get flushed, deallocates all conn resources */
-	iser_conn_terminate(ib_conn);
-	iser_conn->ib_conn = NULL;
-	conn->recv_lock = NULL;
-}
-
-
 static struct iscsi_transport iscsi_iser_transport;
 
 static struct iscsi_cls_session *
@@ -555,13 +540,13 @@ iscsi_iser_ep_poll(__u64 ep_handle, int timeout_ms)
 static void
 iscsi_iser_ep_disconnect(__u64 ep_handle)
 {
-	struct iser_conn *ib_conn = iscsi_iser_ib_conn_lookup(ep_handle);
+	struct iser_conn *ib_conn;
 
+	ib_conn = iscsi_iser_ib_conn_lookup(ep_handle);
 	if (!ib_conn)
 		return;
 
 	iser_err("ib conn %p state %d\n",ib_conn, ib_conn->state);
-
 	iser_conn_terminate(ib_conn);
 }
 
@@ -614,9 +599,6 @@ static struct iscsi_transport iscsi_iser_transport = {
 	.get_session_param	= iscsi_session_get_param,
 	.start_conn             = iscsi_iser_conn_start,
 	.stop_conn              = iscsi_conn_stop,
-	/* these are called as part of conn recovery */
-	.suspend_conn_recv	= NULL, /* FIXME is/how this relvant to iser? */
-	.terminate_conn		= iscsi_iser_conn_terminate,
 	/* IO */
 	.send_pdu		= iscsi_conn_send_pdu,
 	.get_stats		= iscsi_iser_conn_get_stats,
diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h
index d4cb144ab40..c537d71c18e 100644
--- a/drivers/message/fusion/mptbase.h
+++ b/drivers/message/fusion/mptbase.h
@@ -640,7 +640,6 @@ typedef struct _MPT_ADAPTER
 	struct work_struct	 fc_setup_reset_work;
 	struct list_head	 fc_rports;
 	spinlock_t		 fc_rescan_work_lock;
-	int			 fc_rescan_work_count;
 	struct work_struct	 fc_rescan_work;
 	char			 fc_rescan_work_q_name[KOBJ_NAME_LEN];
 	struct workqueue_struct *fc_rescan_work_q;
diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c
index 90da7d63b08..85696f34c31 100644
--- a/drivers/message/fusion/mptfc.c
+++ b/drivers/message/fusion/mptfc.c
@@ -669,7 +669,10 @@ mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
 			 * if still doing discovery,
 			 * hang loose a while until finished
 			 */
-			if (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) {
+			if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) ||
+			    (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE &&
+			     (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK)
+			      == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) {
 				if (count-- > 0) {
 					msleep(100);
 					goto try_again;
@@ -895,59 +898,45 @@ mptfc_rescan_devices(void *arg)
 {
 	MPT_ADAPTER		*ioc = (MPT_ADAPTER *)arg;
 	int			ii;
-	int			work_to_do;
 	u64			pn;
-	unsigned long		flags;
 	struct mptfc_rport_info *ri;
 
-	do {
-		/* start by tagging all ports as missing */
-		list_for_each_entry(ri, &ioc->fc_rports, list) {
-			if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
-				ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
-			}
+	/* start by tagging all ports as missing */
+	list_for_each_entry(ri, &ioc->fc_rports, list) {
+		if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) {
+			ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING;
 		}
+	}
 
-		/*
-		 * now rescan devices known to adapter,
-		 * will reregister existing rports
-		 */
-		for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
-			(void) mptfc_GetFcPortPage0(ioc, ii);
-			mptfc_init_host_attr(ioc,ii);	/* refresh */
-			mptfc_GetFcDevPage0(ioc,ii,mptfc_register_dev);
-		}
+	/*
+	 * now rescan devices known to adapter,
+	 * will reregister existing rports
+	 */
+	for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) {
+		(void) mptfc_GetFcPortPage0(ioc, ii);
+		mptfc_init_host_attr(ioc, ii);	/* refresh */
+		mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev);
+	}
 
-		/* delete devices still missing */
-		list_for_each_entry(ri, &ioc->fc_rports, list) {
-			/* if newly missing, delete it */
-			if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) {
+	/* delete devices still missing */
+	list_for_each_entry(ri, &ioc->fc_rports, list) {
+		/* if newly missing, delete it */
+		if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) {
 
-				ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
-					       MPT_RPORT_INFO_FLAGS_MISSING);
-				fc_remote_port_delete(ri->rport);	/* won't sleep */
-				ri->rport = NULL;
+			ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
+				       MPT_RPORT_INFO_FLAGS_MISSING);
+			fc_remote_port_delete(ri->rport);	/* won't sleep */
+			ri->rport = NULL;
 
-				pn = (u64)ri->pg0.WWPN.High << 32 |
-				     (u64)ri->pg0.WWPN.Low;
-				dfcprintk ((MYIOC_s_INFO_FMT
-					"mptfc_rescan.%d: %llx deleted\n",
-					ioc->name,
-					ioc->sh->host_no,
-					(unsigned long long)pn));
-			}
+			pn = (u64)ri->pg0.WWPN.High << 32 |
+			     (u64)ri->pg0.WWPN.Low;
+			dfcprintk ((MYIOC_s_INFO_FMT
+				"mptfc_rescan.%d: %llx deleted\n",
+				ioc->name,
+				ioc->sh->host_no,
+				(unsigned long long)pn));
 		}
-
-		/*
-		 * allow multiple passes as target state
-		 * might have changed during scan
-		 */
-		spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
-		if (ioc->fc_rescan_work_count > 2) 	/* only need one more */
-			ioc->fc_rescan_work_count = 2;
-		work_to_do = --ioc->fc_rescan_work_count;
-		spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
-	} while (work_to_do);
+	}
 }
 
 static int
@@ -1159,7 +1148,6 @@ mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	 *	by doing it via the workqueue, some locking is eliminated
 	 */
 
-	ioc->fc_rescan_work_count = 1;
 	queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work);
 	flush_workqueue(ioc->fc_rescan_work_q);
 
@@ -1202,10 +1190,8 @@ mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
 	case MPI_EVENT_RESCAN:
 		spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
 		if (ioc->fc_rescan_work_q) {
-			if (ioc->fc_rescan_work_count++ == 0) {
-				queue_work(ioc->fc_rescan_work_q,
-					   &ioc->fc_rescan_work);
-			}
+			queue_work(ioc->fc_rescan_work_q,
+				   &ioc->fc_rescan_work);
 		}
 		spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
 		break;
@@ -1248,10 +1234,8 @@ mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
 		mptfc_SetFcPortPage1_defaults(ioc);
 		spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
 		if (ioc->fc_rescan_work_q) {
-			if (ioc->fc_rescan_work_count++ == 0) {
-				queue_work(ioc->fc_rescan_work_q,
-					   &ioc->fc_rescan_work);
-			}
+			queue_work(ioc->fc_rescan_work_q,
+				   &ioc->fc_rescan_work);
 		}
 		spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
 	}
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index 9cd789b8acd..adc9d8f2c28 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -112,6 +112,105 @@ _zfcp_hex_dump(char *addr, int count)
 		printk("\n");
 }
 
+
+/****************************************************************/
+/****** Functions to handle the request ID hash table    ********/
+/****************************************************************/
+
+#define ZFCP_LOG_AREA			ZFCP_LOG_AREA_FSF
+
+static int zfcp_reqlist_init(struct zfcp_adapter *adapter)
+{
+	int i;
+
+	adapter->req_list = kcalloc(REQUEST_LIST_SIZE, sizeof(struct list_head),
+				    GFP_KERNEL);
+
+	if (!adapter->req_list)
+		return -ENOMEM;
+
+	for (i=0; i<REQUEST_LIST_SIZE; i++)
+		INIT_LIST_HEAD(&adapter->req_list[i]);
+
+	return 0;
+}
+
+static void zfcp_reqlist_free(struct zfcp_adapter *adapter)
+{
+	struct zfcp_fsf_req *request, *tmp;
+	unsigned int i;
+
+	for (i=0; i<REQUEST_LIST_SIZE; i++) {
+		if (list_empty(&adapter->req_list[i]))
+			continue;
+
+		list_for_each_entry_safe(request, tmp,
+					 &adapter->req_list[i], list)
+			list_del(&request->list);
+	}
+
+	kfree(adapter->req_list);
+}
+
+void zfcp_reqlist_add(struct zfcp_adapter *adapter,
+		      struct zfcp_fsf_req *fsf_req)
+{
+	unsigned int i;
+
+	i = fsf_req->req_id % REQUEST_LIST_SIZE;
+	list_add_tail(&fsf_req->list, &adapter->req_list[i]);
+}
+
+void zfcp_reqlist_remove(struct zfcp_adapter *adapter, unsigned long req_id)
+{
+	struct zfcp_fsf_req *request, *tmp;
+	unsigned int i, counter;
+	u64 dbg_tmp[2];
+
+	i = req_id % REQUEST_LIST_SIZE;
+	BUG_ON(list_empty(&adapter->req_list[i]));
+
+	counter = 0;
+	list_for_each_entry_safe(request, tmp, &adapter->req_list[i], list) {
+		if (request->req_id == req_id) {
+			dbg_tmp[0] = (u64) atomic_read(&adapter->reqs_active);
+			dbg_tmp[1] = (u64) counter;
+			debug_event(adapter->erp_dbf, 4, (void *) dbg_tmp, 16);
+			list_del(&request->list);
+			break;
+		}
+		counter++;
+	}
+}
+
+struct zfcp_fsf_req *zfcp_reqlist_ismember(struct zfcp_adapter *adapter,
+					   unsigned long req_id)
+{
+	struct zfcp_fsf_req *request, *tmp;
+	unsigned int i;
+
+	i = req_id % REQUEST_LIST_SIZE;
+
+	list_for_each_entry_safe(request, tmp, &adapter->req_list[i], list)
+		if (request->req_id == req_id)
+			return request;
+
+	return NULL;
+}
+
+int zfcp_reqlist_isempty(struct zfcp_adapter *adapter)
+{
+	unsigned int i;
+
+	for (i=0; i<REQUEST_LIST_SIZE; i++)
+		if (!list_empty(&adapter->req_list[i]))
+			return 0;
+
+	return 1;
+}
+
+#undef ZFCP_LOG_AREA
+
 /****************************************************************/
 /************** Uncategorised Functions *************************/
 /****************************************************************/
@@ -961,8 +1060,12 @@ zfcp_adapter_enqueue(struct ccw_device *ccw_device)
 	INIT_LIST_HEAD(&adapter->port_remove_lh);
 
 	/* initialize list of fsf requests */
-	spin_lock_init(&adapter->fsf_req_list_lock);
-	INIT_LIST_HEAD(&adapter->fsf_req_list_head);
+	spin_lock_init(&adapter->req_list_lock);
+	retval = zfcp_reqlist_init(adapter);
+	if (retval) {
+		ZFCP_LOG_INFO("request list initialization failed\n");
+		goto failed_low_mem_buffers;
+	}
 
 	/* initialize debug locks */
 
@@ -1041,8 +1144,6 @@ zfcp_adapter_enqueue(struct ccw_device *ccw_device)
  *		!0 - struct zfcp_adapter  data structure could not be removed
  *			(e.g. still used)
  * locks:	adapter list write lock is assumed to be held by caller
- *              adapter->fsf_req_list_lock is taken and released within this 
- *              function and must not be held on entry
  */
 void
 zfcp_adapter_dequeue(struct zfcp_adapter *adapter)
@@ -1054,14 +1155,14 @@ zfcp_adapter_dequeue(struct zfcp_adapter *adapter)
 	zfcp_sysfs_adapter_remove_files(&adapter->ccw_device->dev);
 	dev_set_drvdata(&adapter->ccw_device->dev, NULL);
 	/* sanity check: no pending FSF requests */
-	spin_lock_irqsave(&adapter->fsf_req_list_lock, flags);
-	retval = !list_empty(&adapter->fsf_req_list_head);
-	spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags);
-	if (retval) {
+	spin_lock_irqsave(&adapter->req_list_lock, flags);
+	retval = zfcp_reqlist_isempty(adapter);
+	spin_unlock_irqrestore(&adapter->req_list_lock, flags);
+	if (!retval) {
 		ZFCP_LOG_NORMAL("bug: adapter %s (%p) still in use, "
 				"%i requests outstanding\n",
 				zfcp_get_busid_by_adapter(adapter), adapter,
-				atomic_read(&adapter->fsf_reqs_active));
+				atomic_read(&adapter->reqs_active));
 		retval = -EBUSY;
 		goto out;
 	}
@@ -1087,6 +1188,7 @@ zfcp_adapter_dequeue(struct zfcp_adapter *adapter)
 	zfcp_free_low_mem_buffers(adapter);
 	/* free memory of adapter data structure and queues */
 	zfcp_qdio_free_queues(adapter);
+	zfcp_reqlist_free(adapter);
 	kfree(adapter->fc_stats);
 	kfree(adapter->stats_reset_data);
 	ZFCP_LOG_TRACE("freeing adapter structure\n");
diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c
index 57d8e4bfb8d..fdabadeaa9e 100644
--- a/drivers/s390/scsi/zfcp_ccw.c
+++ b/drivers/s390/scsi/zfcp_ccw.c
@@ -164,6 +164,11 @@ zfcp_ccw_set_online(struct ccw_device *ccw_device)
 	retval = zfcp_adapter_scsi_register(adapter);
 	if (retval)
 		goto out_scsi_register;
+
+	/* initialize request counter */
+	BUG_ON(!zfcp_reqlist_isempty(adapter));
+	adapter->req_no = 0;
+
 	zfcp_erp_modify_adapter_status(adapter, ZFCP_STATUS_COMMON_RUNNING,
 				       ZFCP_SET);
 	zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED);
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index 2df512a18e2..94d1b74db35 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -52,7 +52,7 @@
 /********************* GENERAL DEFINES *********************************/
 
 /* zfcp version number, it consists of major, minor, and patch-level number */
-#define ZFCP_VERSION		"4.7.0"
+#define ZFCP_VERSION		"4.8.0"
 
 /**
  * zfcp_sg_to_address - determine kernel address from struct scatterlist
@@ -80,7 +80,7 @@ zfcp_address_to_sg(void *address, struct scatterlist *list)
 #define REQUEST_LIST_SIZE 128
 
 /********************* SCSI SPECIFIC DEFINES *********************************/
-#define ZFCP_SCSI_ER_TIMEOUT                    (100*HZ)
+#define ZFCP_SCSI_ER_TIMEOUT                    (10*HZ)
 
 /********************* CIO/QDIO SPECIFIC DEFINES *****************************/
 
@@ -886,11 +886,11 @@ struct zfcp_adapter {
 	struct list_head        port_remove_lh;    /* head of ports to be
 						      removed */
 	u32			ports;	           /* number of remote ports */
-        struct timer_list       scsi_er_timer;     /* SCSI err recovery watch */
-	struct list_head	fsf_req_list_head; /* head of FSF req list */
-	spinlock_t		fsf_req_list_lock; /* lock for ops on list of
-						      FSF requests */
-        atomic_t       		fsf_reqs_active;   /* # active FSF reqs */
+	struct timer_list	scsi_er_timer;     /* SCSI err recovery watch */
+	atomic_t		reqs_active;	   /* # active FSF reqs */
+	unsigned long		req_no;		   /* unique FSF req number */
+	struct list_head	*req_list;	   /* list of pending reqs */
+	spinlock_t		req_list_lock;	   /* request list lock */
 	struct zfcp_qdio_queue	request_queue;	   /* request queue */
 	u32			fsf_req_seq_no;	   /* FSF cmnd seq number */
 	wait_queue_head_t	request_wq;	   /* can be used to wait for
@@ -986,6 +986,7 @@ struct zfcp_unit {
 /* FSF request */
 struct zfcp_fsf_req {
 	struct list_head       list;	       /* list of FSF requests */
+	unsigned long	       req_id;	       /* unique request ID */
 	struct zfcp_adapter    *adapter;       /* adapter request belongs to */
 	u8		       sbal_number;    /* nr of SBALs free for use */
 	u8		       sbal_first;     /* first SBAL for this request */
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index 8ec8da0beaa..7f60b6fdf72 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -64,8 +64,8 @@ static int zfcp_erp_strategy_check_action(struct zfcp_erp_action *, int);
 static int zfcp_erp_adapter_strategy(struct zfcp_erp_action *);
 static int zfcp_erp_adapter_strategy_generic(struct zfcp_erp_action *, int);
 static int zfcp_erp_adapter_strategy_close(struct zfcp_erp_action *);
-static int zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *);
-static int zfcp_erp_adapter_strategy_close_fsf(struct zfcp_erp_action *);
+static void zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *);
+static void zfcp_erp_adapter_strategy_close_fsf(struct zfcp_erp_action *);
 static int zfcp_erp_adapter_strategy_open(struct zfcp_erp_action *);
 static int zfcp_erp_adapter_strategy_open_qdio(struct zfcp_erp_action *);
 static int zfcp_erp_adapter_strategy_open_fsf(struct zfcp_erp_action *);
@@ -93,10 +93,9 @@ static int zfcp_erp_unit_strategy_clearstati(struct zfcp_unit *);
 static int zfcp_erp_unit_strategy_close(struct zfcp_erp_action *);
 static int zfcp_erp_unit_strategy_open(struct zfcp_erp_action *);
 
-static int zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *);
-static int zfcp_erp_action_dismiss_port(struct zfcp_port *);
-static int zfcp_erp_action_dismiss_unit(struct zfcp_unit *);
-static int zfcp_erp_action_dismiss(struct zfcp_erp_action *);
+static void zfcp_erp_action_dismiss_port(struct zfcp_port *);
+static void zfcp_erp_action_dismiss_unit(struct zfcp_unit *);
+static void zfcp_erp_action_dismiss(struct zfcp_erp_action *);
 
 static int zfcp_erp_action_enqueue(int, struct zfcp_adapter *,
 				   struct zfcp_port *, struct zfcp_unit *);
@@ -135,29 +134,39 @@ zfcp_fsf_request_timeout_handler(unsigned long data)
 	zfcp_erp_adapter_reopen(adapter, 0);
 }
 
-/*
- * function:	zfcp_fsf_scsi_er_timeout_handler
- *
- * purpose:     This function needs to be called whenever a SCSI error recovery
- *              action (abort/reset) does not return.
- *              Re-opening the adapter means that the command can be returned
- *              by zfcp (it is guarranteed that it does not return via the
- *              adapter anymore). The buffer can then be used again.
- *    
- * returns:     sod all
+/**
+ * zfcp_fsf_scsi_er_timeout_handler - timeout handler for scsi eh tasks
+ *
+ * This function needs to be called whenever a SCSI error recovery
+ * action (abort/reset) does not return.  Re-opening the adapter means
+ * that the abort/reset command can be returned by zfcp. It won't complete
+ * via the adapter anymore (because qdio queues are closed). If ERP is
+ * already running on this adapter it will be stopped.
  */
-void
-zfcp_fsf_scsi_er_timeout_handler(unsigned long data)
+void zfcp_fsf_scsi_er_timeout_handler(unsigned long data)
 {
 	struct zfcp_adapter *adapter = (struct zfcp_adapter *) data;
+	unsigned long flags;
 
 	ZFCP_LOG_NORMAL("warning: SCSI error recovery timed out. "
 			"Restarting all operations on the adapter %s\n",
 			zfcp_get_busid_by_adapter(adapter));
 	debug_text_event(adapter->erp_dbf, 1, "eh_lmem_tout");
-	zfcp_erp_adapter_reopen(adapter, 0);
 
-	return;
+	write_lock_irqsave(&adapter->erp_lock, flags);
+	if (atomic_test_mask(ZFCP_STATUS_ADAPTER_ERP_PENDING,
+			     &adapter->status)) {
+		zfcp_erp_modify_adapter_status(adapter,
+		       ZFCP_STATUS_COMMON_UNBLOCKED|ZFCP_STATUS_COMMON_OPEN,
+		       ZFCP_CLEAR);
+		zfcp_erp_action_dismiss_adapter(adapter);
+		write_unlock_irqrestore(&adapter->erp_lock, flags);
+		/* dismiss all pending requests including requests for ERP */
+		zfcp_fsf_req_dismiss_all(adapter);
+		adapter->fsf_req_seq_no = 0;
+	} else
+		write_unlock_irqrestore(&adapter->erp_lock, flags);
+	zfcp_erp_adapter_reopen(adapter, 0);
 }
 
 /*
@@ -670,17 +679,10 @@ zfcp_erp_unit_reopen(struct zfcp_unit *unit, int clear_mask)
 	return retval;
 }
 
-/*
- * function:	
- *
- * purpose:	disable I/O,
- *		return any open requests and clean them up,
- *		aim: no pending and incoming I/O
- *
- * returns:
+/**
+ * zfcp_erp_adapter_block - mark adapter as blocked, block scsi requests
  */
-static void
-zfcp_erp_adapter_block(struct zfcp_adapter *adapter, int clear_mask)
+static void zfcp_erp_adapter_block(struct zfcp_adapter *adapter, int clear_mask)
 {
 	debug_text_event(adapter->erp_dbf, 6, "a_bl");
 	zfcp_erp_modify_adapter_status(adapter,
@@ -688,15 +690,10 @@ zfcp_erp_adapter_block(struct zfcp_adapter *adapter, int clear_mask)
 				       clear_mask, ZFCP_CLEAR);
 }
 
-/*
- * function:	
- *
- * purpose:	enable I/O
- *
- * returns:
+/**
+ * zfcp_erp_adapter_unblock - mark adapter as unblocked, allow scsi requests
  */
-static void
-zfcp_erp_adapter_unblock(struct zfcp_adapter *adapter)
+static void zfcp_erp_adapter_unblock(struct zfcp_adapter *adapter)
 {
 	debug_text_event(adapter->erp_dbf, 6, "a_ubl");
 	atomic_set_mask(ZFCP_STATUS_COMMON_UNBLOCKED, &adapter->status);
@@ -848,18 +845,16 @@ zfcp_erp_strategy_check_fsfreq(struct zfcp_erp_action *erp_action)
 	struct zfcp_adapter *adapter = erp_action->adapter;
 
 	if (erp_action->fsf_req) {
-		/* take lock to ensure that request is not being deleted meanwhile */
-		spin_lock(&adapter->fsf_req_list_lock);
-		/* check whether fsf req does still exist */
-		list_for_each_entry(fsf_req, &adapter->fsf_req_list_head, list)
-		    if (fsf_req == erp_action->fsf_req)
-			break;
-		if (fsf_req && (fsf_req->erp_action == erp_action)) {
+		/* take lock to ensure that request is not deleted meanwhile */
+		spin_lock(&adapter->req_list_lock);
+		if ((!zfcp_reqlist_ismember(adapter,
+					    erp_action->fsf_req->req_id)) &&
+		    (fsf_req->erp_action == erp_action)) {
 			/* fsf_req still exists */
 			debug_text_event(adapter->erp_dbf, 3, "a_ca_req");
 			debug_event(adapter->erp_dbf, 3, &fsf_req,
 				    sizeof (unsigned long));
-			/* dismiss fsf_req of timed out or dismissed erp_action */
+			/* dismiss fsf_req of timed out/dismissed erp_action */
 			if (erp_action->status & (ZFCP_STATUS_ERP_DISMISSED |
 						  ZFCP_STATUS_ERP_TIMEDOUT)) {
 				debug_text_event(adapter->erp_dbf, 3,
@@ -892,30 +887,22 @@ zfcp_erp_strategy_check_fsfreq(struct zfcp_erp_action *erp_action)
 			 */
 			erp_action->fsf_req = NULL;
 		}
-		spin_unlock(&adapter->fsf_req_list_lock);
+		spin_unlock(&adapter->req_list_lock);
 	} else
 		debug_text_event(adapter->erp_dbf, 3, "a_ca_noreq");
 
 	return retval;
 }
 
-/*
- * purpose:	generic handler for asynchronous events related to erp_action events
- *		(normal completion, time-out, dismissing, retry after
- *		low memory condition)
- *
- * note:	deletion of timer is not required (e.g. in case of a time-out),
- *		but a second try does no harm,
- *		we leave it in here to allow for greater simplification
+/**
+ * zfcp_erp_async_handler_nolock - complete erp_action
  *
- * returns:	0 - there was an action to handle
- *		!0 - otherwise
+ * Used for normal completion, time-out, dismissal and failure after
+ * low memory condition.
  */
-static int
-zfcp_erp_async_handler_nolock(struct zfcp_erp_action *erp_action,
-			      unsigned long set_mask)
+static void zfcp_erp_async_handler_nolock(struct zfcp_erp_action *erp_action,
+					  unsigned long set_mask)
 {
-	int retval;
 	struct zfcp_adapter *adapter = erp_action->adapter;
 
 	if (zfcp_erp_action_exists(erp_action) == ZFCP_ERP_ACTION_RUNNING) {
@@ -926,43 +913,26 @@ zfcp_erp_async_handler_nolock(struct zfcp_erp_action *erp_action,
 			del_timer(&erp_action->timer);
 		erp_action->status |= set_mask;
 		zfcp_erp_action_ready(erp_action);
-		retval = 0;
 	} else {
 		/* action is ready or gone - nothing to do */
 		debug_text_event(adapter->erp_dbf, 3, "a_asyh_gone");
 		debug_event(adapter->erp_dbf, 3, &erp_action->action,
 			    sizeof (int));
-		retval = 1;
 	}
-
-	return retval;
 }
 
-/*
- * purpose:	generic handler for asynchronous events related to erp_action
- *               events	(normal completion, time-out, dismissing, retry after
- *		low memory condition)
- *
- * note:	deletion of timer is not required (e.g. in case of a time-out),
- *		but a second try does no harm,
- *		we leave it in here to allow for greater simplification
- *
- * returns:	0 - there was an action to handle
- *		!0 - otherwise
+/**
+ * zfcp_erp_async_handler - wrapper for erp_async_handler_nolock w/ locking
  */
-int
-zfcp_erp_async_handler(struct zfcp_erp_action *erp_action,
-		       unsigned long set_mask)
+void zfcp_erp_async_handler(struct zfcp_erp_action *erp_action,
+			    unsigned long set_mask)
 {
 	struct zfcp_adapter *adapter = erp_action->adapter;
 	unsigned long flags;
-	int retval;
 
 	write_lock_irqsave(&adapter->erp_lock, flags);
-	retval = zfcp_erp_async_handler_nolock(erp_action, set_mask);
+	zfcp_erp_async_handler_nolock(erp_action, set_mask);
 	write_unlock_irqrestore(&adapter->erp_lock, flags);
-
-	return retval;
 }
 
 /*
@@ -999,17 +969,15 @@ zfcp_erp_timeout_handler(unsigned long data)
 	zfcp_erp_async_handler(erp_action, ZFCP_STATUS_ERP_TIMEDOUT);
 }
 
-/*
- * purpose:	is called for an erp_action which needs to be ended
- *		though not being done,
- *		this is usually required if an higher is generated,
- *		action gets an appropriate flag and will be processed
- *		accordingly
+/**
+ * zfcp_erp_action_dismiss - dismiss an erp_action
  *
- * locks:	erp_lock held (thus we need to call another handler variant)
+ * adapter->erp_lock must be held
+ * 
+ * Dismissal of an erp_action is usually required if an erp_action of
+ * higher priority is generated.
  */
-static int
-zfcp_erp_action_dismiss(struct zfcp_erp_action *erp_action)
+static void zfcp_erp_action_dismiss(struct zfcp_erp_action *erp_action)
 {
 	struct zfcp_adapter *adapter = erp_action->adapter;
 
@@ -1017,8 +985,6 @@ zfcp_erp_action_dismiss(struct zfcp_erp_action *erp_action)
 	debug_event(adapter->erp_dbf, 2, &erp_action->action, sizeof (int));
 
 	zfcp_erp_async_handler_nolock(erp_action, ZFCP_STATUS_ERP_DISMISSED);
-
-	return 0;
 }
 
 int
@@ -2074,18 +2040,12 @@ zfcp_erp_adapter_strategy_open_qdio(struct zfcp_erp_action *erp_action)
 	return retval;
 }
 
-/*
- * function:    zfcp_qdio_cleanup
- *
- * purpose:	cleans up QDIO operation for the specified adapter
- *
- * returns:	0 - successful cleanup
- *		!0 - failed cleanup
+/**
+ * zfcp_erp_adapter_strategy_close_qdio - close qdio queues for an adapter
  */
-int
+static void
 zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *erp_action)
 {
-	int retval = ZFCP_ERP_SUCCEEDED;
 	int first_used;
 	int used_count;
 	struct zfcp_adapter *adapter = erp_action->adapter;
@@ -2094,15 +2054,13 @@ zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *erp_action)
 		ZFCP_LOG_DEBUG("error: attempt to shut down inactive QDIO "
 			       "queues on adapter %s\n",
 			       zfcp_get_busid_by_adapter(adapter));
-		retval = ZFCP_ERP_FAILED;
-		goto out;
+		return;
 	}
 
 	/*
 	 * Get queue_lock and clear QDIOUP flag. Thus it's guaranteed that
 	 * do_QDIO won't be called while qdio_shutdown is in progress.
 	 */
-
 	write_lock_irq(&adapter->request_queue.queue_lock);
 	atomic_clear_mask(ZFCP_STATUS_ADAPTER_QDIOUP, &adapter->status);
 	write_unlock_irq(&adapter->request_queue.queue_lock);
@@ -2134,8 +2092,6 @@ zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *erp_action)
 	adapter->request_queue.free_index = 0;
 	atomic_set(&adapter->request_queue.free_count, 0);
 	adapter->request_queue.distance_from_int = 0;
- out:
-	return retval;
 }
 
 static int
@@ -2258,11 +2214,11 @@ zfcp_erp_adapter_strategy_open_fsf_xport(struct zfcp_erp_action *erp_action)
 			      "%s)\n", zfcp_get_busid_by_adapter(adapter));
 		ret = ZFCP_ERP_FAILED;
 	}
-	if (!atomic_test_mask(ZFCP_STATUS_ADAPTER_XPORT_OK, &adapter->status)) {
-		ZFCP_LOG_INFO("error: exchange port data failed (adapter "
+
+	/* don't treat as error for the sake of compatibility */
+	if (!atomic_test_mask(ZFCP_STATUS_ADAPTER_XPORT_OK, &adapter->status))
+		ZFCP_LOG_INFO("warning: exchange port data failed (adapter "
 			      "%s\n", zfcp_get_busid_by_adapter(adapter));
-		ret = ZFCP_ERP_FAILED;
-	}
 
 	return ret;
 }
@@ -2292,18 +2248,12 @@ zfcp_erp_adapter_strategy_open_fsf_statusread(struct zfcp_erp_action
 	return retval;
 }
 
-/*
- * function:    zfcp_fsf_cleanup
- *
- * purpose:	cleanup FSF operation for specified adapter
- *
- * returns:	0 - FSF operation successfully cleaned up
- *		!0 - failed to cleanup FSF operation for this adapter
+/**
+ * zfcp_erp_adapter_strategy_close_fsf - stop FSF operations for an adapter
  */
-static int
+static void
 zfcp_erp_adapter_strategy_close_fsf(struct zfcp_erp_action *erp_action)
 {
-	int retval = ZFCP_ERP_SUCCEEDED;
 	struct zfcp_adapter *adapter = erp_action->adapter;
 
 	/*
@@ -2317,8 +2267,6 @@ zfcp_erp_adapter_strategy_close_fsf(struct zfcp_erp_action *erp_action)
 	/* all ports and units are closed */
 	zfcp_erp_modify_adapter_status(adapter,
 				       ZFCP_STATUS_COMMON_OPEN, ZFCP_CLEAR);
-
-	return retval;
 }
 
 /*
@@ -3293,10 +3241,8 @@ zfcp_erp_action_cleanup(int action, struct zfcp_adapter *adapter,
 }
 
 
-static int
-zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *adapter)
+void zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *adapter)
 {
-	int retval = 0;
 	struct zfcp_port *port;
 
 	debug_text_event(adapter->erp_dbf, 5, "a_actab");
@@ -3305,14 +3251,10 @@ zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *adapter)
 	else
 		list_for_each_entry(port, &adapter->port_list_head, list)
 		    zfcp_erp_action_dismiss_port(port);
-
-	return retval;
 }
 
-static int
-zfcp_erp_action_dismiss_port(struct zfcp_port *port)
+static void zfcp_erp_action_dismiss_port(struct zfcp_port *port)
 {
-	int retval = 0;
 	struct zfcp_unit *unit;
 	struct zfcp_adapter *adapter = port->adapter;
 
@@ -3323,22 +3265,16 @@ zfcp_erp_action_dismiss_port(struct zfcp_port *port)
 	else
 		list_for_each_entry(unit, &port->unit_list_head, list)
 		    zfcp_erp_action_dismiss_unit(unit);
-
-	return retval;
 }
 
-static int
-zfcp_erp_action_dismiss_unit(struct zfcp_unit *unit)
+static void zfcp_erp_action_dismiss_unit(struct zfcp_unit *unit)
 {
-	int retval = 0;
 	struct zfcp_adapter *adapter = unit->port->adapter;
 
 	debug_text_event(adapter->erp_dbf, 5, "u_actab");
 	debug_event(adapter->erp_dbf, 5, &unit->fcp_lun, sizeof (fcp_lun_t));
 	if (atomic_test_mask(ZFCP_STATUS_COMMON_ERP_INUSE, &unit->status))
 		zfcp_erp_action_dismiss(&unit->erp_action);
-
-	return retval;
 }
 
 static inline void
diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h
index d02366004cd..146d7a2b4c4 100644
--- a/drivers/s390/scsi/zfcp_ext.h
+++ b/drivers/s390/scsi/zfcp_ext.h
@@ -63,7 +63,6 @@ extern int  zfcp_qdio_allocate_queues(struct zfcp_adapter *);
 extern void zfcp_qdio_free_queues(struct zfcp_adapter *);
 extern int  zfcp_qdio_determine_pci(struct zfcp_qdio_queue *,
 				    struct zfcp_fsf_req *);
-extern int  zfcp_qdio_reqid_check(struct zfcp_adapter *, void *);
 
 extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_req
 	(struct zfcp_fsf_req *, int, int);
@@ -140,6 +139,7 @@ extern void zfcp_erp_modify_adapter_status(struct zfcp_adapter *, u32, int);
 extern int  zfcp_erp_adapter_reopen(struct zfcp_adapter *, int);
 extern int  zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int);
 extern void zfcp_erp_adapter_failed(struct zfcp_adapter *);
+extern void zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *);
 
 extern void zfcp_erp_modify_port_status(struct zfcp_port *, u32, int);
 extern int  zfcp_erp_port_reopen(struct zfcp_port *, int);
@@ -156,7 +156,7 @@ extern void zfcp_erp_unit_failed(struct zfcp_unit *);
 extern int  zfcp_erp_thread_setup(struct zfcp_adapter *);
 extern int  zfcp_erp_thread_kill(struct zfcp_adapter *);
 extern int  zfcp_erp_wait(struct zfcp_adapter *);
-extern int  zfcp_erp_async_handler(struct zfcp_erp_action *, unsigned long);
+extern void zfcp_erp_async_handler(struct zfcp_erp_action *, unsigned long);
 
 extern int  zfcp_test_link(struct zfcp_port *);
 
@@ -190,5 +190,10 @@ extern void zfcp_scsi_dbf_event_abort(const char *, struct zfcp_adapter *,
 				      struct zfcp_fsf_req *);
 extern void zfcp_scsi_dbf_event_devreset(const char *, u8, struct zfcp_unit *,
 					 struct scsi_cmnd *);
+extern void zfcp_reqlist_add(struct zfcp_adapter *, struct zfcp_fsf_req *);
+extern void zfcp_reqlist_remove(struct zfcp_adapter *, unsigned long);
+extern struct zfcp_fsf_req *zfcp_reqlist_ismember(struct zfcp_adapter *,
+						  unsigned long);
+extern int zfcp_reqlist_isempty(struct zfcp_adapter *);
 
 #endif	/* ZFCP_EXT_H */
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 31db2b06fab..ff2eacf5ec8 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -49,7 +49,6 @@ static int zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *);
 static void zfcp_fsf_link_down_info_eval(struct zfcp_adapter *,
 	struct fsf_link_down_info *);
 static int zfcp_fsf_req_dispatch(struct zfcp_fsf_req *);
-static void zfcp_fsf_req_dismiss(struct zfcp_fsf_req *);
 
 /* association between FSF command and FSF QTCB type */
 static u32 fsf_qtcb_type[] = {
@@ -146,47 +145,48 @@ zfcp_fsf_req_free(struct zfcp_fsf_req *fsf_req)
 		kfree(fsf_req);
 }
 
-/*
- * function:	
- *
- * purpose:	
- *
- * returns:
- *
- * note: qdio queues shall be down (no ongoing inbound processing)
+/**
+ * zfcp_fsf_req_dismiss - dismiss a single fsf request
  */
-int
-zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter)
+static void zfcp_fsf_req_dismiss(struct zfcp_adapter *adapter,
+				 struct zfcp_fsf_req *fsf_req,
+				 unsigned int counter)
 {
-	struct zfcp_fsf_req *fsf_req, *tmp;
-	unsigned long flags;
-	LIST_HEAD(remove_queue);
+	u64 dbg_tmp[2];
 
-	spin_lock_irqsave(&adapter->fsf_req_list_lock, flags);
-	list_splice_init(&adapter->fsf_req_list_head, &remove_queue);
-	atomic_set(&adapter->fsf_reqs_active, 0);
-	spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags);
-
-	list_for_each_entry_safe(fsf_req, tmp, &remove_queue, list) {
-		list_del(&fsf_req->list);
-		zfcp_fsf_req_dismiss(fsf_req);
-	}
-
-	return 0;
+	dbg_tmp[0] = (u64) atomic_read(&adapter->reqs_active);
+	dbg_tmp[1] = (u64) counter;
+	debug_event(adapter->erp_dbf, 4, (void *) dbg_tmp, 16);
+	list_del(&fsf_req->list);
+	fsf_req->status |= ZFCP_STATUS_FSFREQ_DISMISSED;
+	zfcp_fsf_req_complete(fsf_req);
 }
 
-/*
- * function:	
- *
- * purpose:	
- *
- * returns:
+/**
+ * zfcp_fsf_req_dismiss_all - dismiss all remaining fsf requests
  */
-static void
-zfcp_fsf_req_dismiss(struct zfcp_fsf_req *fsf_req)
+int zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter)
 {
-	fsf_req->status |= ZFCP_STATUS_FSFREQ_DISMISSED;
-	zfcp_fsf_req_complete(fsf_req);
+	struct zfcp_fsf_req *request, *tmp;
+	unsigned long flags;
+	unsigned int i, counter;
+
+	spin_lock_irqsave(&adapter->req_list_lock, flags);
+	atomic_set(&adapter->reqs_active, 0);
+	for (i=0; i<REQUEST_LIST_SIZE; i++) {
+		if (list_empty(&adapter->req_list[i]))
+			continue;
+
+		counter = 0;
+		list_for_each_entry_safe(request, tmp,
+					 &adapter->req_list[i], list) {
+			zfcp_fsf_req_dismiss(adapter, request, counter);
+			counter++;
+		}
+	}
+	spin_unlock_irqrestore(&adapter->req_list_lock, flags);
+
+	return 0;
 }
 
 /*
@@ -4592,12 +4592,14 @@ static inline void
 zfcp_fsf_req_qtcb_init(struct zfcp_fsf_req *fsf_req)
 {
 	if (likely(fsf_req->qtcb != NULL)) {
-		fsf_req->qtcb->prefix.req_seq_no = fsf_req->adapter->fsf_req_seq_no;
-		fsf_req->qtcb->prefix.req_id = (unsigned long)fsf_req;
+		fsf_req->qtcb->prefix.req_seq_no =
+			fsf_req->adapter->fsf_req_seq_no;
+		fsf_req->qtcb->prefix.req_id = fsf_req->req_id;
 		fsf_req->qtcb->prefix.ulp_info = ZFCP_ULP_INFO_VERSION;
-		fsf_req->qtcb->prefix.qtcb_type = fsf_qtcb_type[fsf_req->fsf_command];
+		fsf_req->qtcb->prefix.qtcb_type =
+			fsf_qtcb_type[fsf_req->fsf_command];
 		fsf_req->qtcb->prefix.qtcb_version = ZFCP_QTCB_VERSION;
-		fsf_req->qtcb->header.req_handle = (unsigned long)fsf_req;
+		fsf_req->qtcb->header.req_handle = fsf_req->req_id;
 		fsf_req->qtcb->header.fsf_command = fsf_req->fsf_command;
 	}
 }
@@ -4654,6 +4656,7 @@ zfcp_fsf_req_create(struct zfcp_adapter *adapter, u32 fsf_cmd, int req_flags,
 {
 	volatile struct qdio_buffer_element *sbale;
 	struct zfcp_fsf_req *fsf_req = NULL;
+	unsigned long flags;
 	int ret = 0;
 	struct zfcp_qdio_queue *req_queue = &adapter->request_queue;
 
@@ -4668,6 +4671,12 @@ zfcp_fsf_req_create(struct zfcp_adapter *adapter, u32 fsf_cmd, int req_flags,
 
 	fsf_req->adapter = adapter;
 	fsf_req->fsf_command = fsf_cmd;
+	INIT_LIST_HEAD(&fsf_req->list);
+	
+	/* unique request id */
+	spin_lock_irqsave(&adapter->req_list_lock, flags);
+	fsf_req->req_id = adapter->req_no++;
+	spin_unlock_irqrestore(&adapter->req_list_lock, flags);
 
         zfcp_fsf_req_qtcb_init(fsf_req);
 
@@ -4707,7 +4716,7 @@ zfcp_fsf_req_create(struct zfcp_adapter *adapter, u32 fsf_cmd, int req_flags,
 	sbale = zfcp_qdio_sbale_req(fsf_req, fsf_req->sbal_curr, 0);
 
 	/* setup common SBALE fields */
-	sbale[0].addr = fsf_req;
+	sbale[0].addr = (void *) fsf_req->req_id;
 	sbale[0].flags |= SBAL_FLAGS0_COMMAND;
 	if (likely(fsf_req->qtcb != NULL)) {
 		sbale[1].addr = (void *) fsf_req->qtcb;
@@ -4747,7 +4756,7 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer)
 	volatile struct qdio_buffer_element *sbale;
 	int inc_seq_no;
 	int new_distance_from_int;
-	unsigned long flags;
+	u64 dbg_tmp[2];
 	int retval = 0;
 
 	adapter = fsf_req->adapter;
@@ -4761,10 +4770,10 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer)
 	ZFCP_HEX_DUMP(ZFCP_LOG_LEVEL_TRACE, (char *) sbale[1].addr,
 		      sbale[1].length);
 
-	/* put allocated FSF request at list tail */
-	spin_lock_irqsave(&adapter->fsf_req_list_lock, flags);
-	list_add_tail(&fsf_req->list, &adapter->fsf_req_list_head);
-	spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags);
+	/* put allocated FSF request into hash table */
+	spin_lock(&adapter->req_list_lock);
+	zfcp_reqlist_add(adapter, fsf_req);
+	spin_unlock(&adapter->req_list_lock);
 
 	inc_seq_no = (fsf_req->qtcb != NULL);
 
@@ -4803,6 +4812,10 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer)
 			 QDIO_FLAG_SYNC_OUTPUT,
 			 0, fsf_req->sbal_first, fsf_req->sbal_number, NULL);
 
+	dbg_tmp[0] = (unsigned long) sbale[0].addr;
+	dbg_tmp[1] = (u64) retval;
+	debug_event(adapter->erp_dbf, 4, (void *) dbg_tmp, 16);
+
 	if (unlikely(retval)) {
 		/* Queues are down..... */
 		retval = -EIO;
@@ -4812,22 +4825,17 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer)
 		 */
 		if (timer)
 			del_timer(timer);
-		spin_lock_irqsave(&adapter->fsf_req_list_lock, flags);
-		list_del(&fsf_req->list);
-		spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags);
-		/*
-		 * adjust the number of free SBALs in request queue as well as
-		 * position of first one
-		 */
+		spin_lock(&adapter->req_list_lock);
+		zfcp_reqlist_remove(adapter, fsf_req->req_id);
+		spin_unlock(&adapter->req_list_lock);
+		/* undo changes in request queue made for this request */
 		zfcp_qdio_zero_sbals(req_queue->buffer,
 				     fsf_req->sbal_first, fsf_req->sbal_number);
 		atomic_add(fsf_req->sbal_number, &req_queue->free_count);
-		req_queue->free_index -= fsf_req->sbal_number;	 /* increase */
+		req_queue->free_index -= fsf_req->sbal_number;
 		req_queue->free_index += QDIO_MAX_BUFFERS_PER_Q;
 		req_queue->free_index %= QDIO_MAX_BUFFERS_PER_Q; /* wrap */
-		ZFCP_LOG_DEBUG
-			("error: do_QDIO failed. Buffers could not be enqueued "
-			 "to request queue.\n");
+		zfcp_erp_adapter_reopen(adapter, 0);
 	} else {
 		req_queue->distance_from_int = new_distance_from_int;
 		/*
@@ -4843,7 +4851,7 @@ zfcp_fsf_req_send(struct zfcp_fsf_req *fsf_req, struct timer_list *timer)
 			adapter->fsf_req_seq_no++;
 
 		/* count FSF requests pending */
-		atomic_inc(&adapter->fsf_reqs_active);
+		atomic_inc(&adapter->reqs_active);
 	}
 	return retval;
 }
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c
index 49ea5add4ab..dbd9f48e863 100644
--- a/drivers/s390/scsi/zfcp_qdio.c
+++ b/drivers/s390/scsi/zfcp_qdio.c
@@ -282,6 +282,37 @@ zfcp_qdio_request_handler(struct ccw_device *ccw_device,
 	return;
 }
 
+/**
+ * zfcp_qdio_reqid_check - checks for valid reqids or unsolicited status
+ */
+static int zfcp_qdio_reqid_check(struct zfcp_adapter *adapter, 
+				 unsigned long req_id)
+{
+	struct zfcp_fsf_req *fsf_req;
+	unsigned long flags;
+
+	debug_long_event(adapter->erp_dbf, 4, req_id);
+
+	spin_lock_irqsave(&adapter->req_list_lock, flags);
+	fsf_req = zfcp_reqlist_ismember(adapter, req_id);
+
+	if (!fsf_req) {
+		spin_unlock_irqrestore(&adapter->req_list_lock, flags);
+		ZFCP_LOG_NORMAL("error: unknown request id (%ld).\n", req_id);
+		zfcp_erp_adapter_reopen(adapter, 0);
+		return -EINVAL;
+	}
+
+	zfcp_reqlist_remove(adapter, req_id);
+	atomic_dec(&adapter->reqs_active);
+	spin_unlock_irqrestore(&adapter->req_list_lock, flags);
+
+	/* finish the FSF request */
+	zfcp_fsf_req_complete(fsf_req);
+
+	return 0;
+}
+
 /*
  * function:   	zfcp_qdio_response_handler
  *
@@ -344,7 +375,7 @@ zfcp_qdio_response_handler(struct ccw_device *ccw_device,
 			/* look for QDIO request identifiers in SB */
 			buffere = &buffer->element[buffere_index];
 			retval = zfcp_qdio_reqid_check(adapter,
-						       (void *) buffere->addr);
+					(unsigned long) buffere->addr);
 
 			if (retval) {
 				ZFCP_LOG_NORMAL("bug: unexpected inbound "
@@ -415,52 +446,6 @@ zfcp_qdio_response_handler(struct ccw_device *ccw_device,
 	return;
 }
 
-/*
- * function:	zfcp_qdio_reqid_check
- *
- * purpose:	checks for valid reqids or unsolicited status
- *
- * returns:	0 - valid request id or unsolicited status
- *		!0 - otherwise
- */
-int
-zfcp_qdio_reqid_check(struct zfcp_adapter *adapter, void *sbale_addr)
-{
-	struct zfcp_fsf_req *fsf_req;
-	unsigned long flags;
-
-	/* invalid (per convention used in this driver) */
-	if (unlikely(!sbale_addr)) {
-		ZFCP_LOG_NORMAL("bug: invalid reqid\n");
-		return -EINVAL;
-	}
-
-	/* valid request id and thus (hopefully :) valid fsf_req address */
-	fsf_req = (struct zfcp_fsf_req *) sbale_addr;
-
-	/* serialize with zfcp_fsf_req_dismiss_all */
-	spin_lock_irqsave(&adapter->fsf_req_list_lock, flags);
-	if (list_empty(&adapter->fsf_req_list_head)) {
-		spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags);
-		return 0;
-	}
-	list_del(&fsf_req->list);
-	atomic_dec(&adapter->fsf_reqs_active);
-	spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags);
-
-	if (unlikely(adapter != fsf_req->adapter)) {
-		ZFCP_LOG_NORMAL("bug: invalid reqid (fsf_req=%p, "
-				"fsf_req->adapter=%p, adapter=%p)\n",
-				fsf_req, fsf_req->adapter, adapter);
-		return -EINVAL;
-	}
-
-	/* finish the FSF request */
-	zfcp_fsf_req_complete(fsf_req);
-
-	return 0;
-}
-
 /**
  * zfcp_qdio_sbale_get - return pointer to SBALE of qdio_queue
  * @queue: queue from which SBALE should be returned
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 671f4a6a5d1..1bb55086db9 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -30,7 +30,6 @@ static int zfcp_scsi_queuecommand(struct scsi_cmnd *,
 				  void (*done) (struct scsi_cmnd *));
 static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *);
 static int zfcp_scsi_eh_device_reset_handler(struct scsi_cmnd *);
-static int zfcp_scsi_eh_bus_reset_handler(struct scsi_cmnd *);
 static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *);
 static int zfcp_task_management_function(struct zfcp_unit *, u8,
 					 struct scsi_cmnd *);
@@ -46,30 +45,22 @@ struct zfcp_data zfcp_data = {
 	.scsi_host_template = {
 		.name			= ZFCP_NAME,
 		.proc_name		= "zfcp",
-		.proc_info		= NULL,
-		.detect			= NULL,
 		.slave_alloc		= zfcp_scsi_slave_alloc,
 		.slave_configure	= zfcp_scsi_slave_configure,
 		.slave_destroy		= zfcp_scsi_slave_destroy,
 		.queuecommand		= zfcp_scsi_queuecommand,
 		.eh_abort_handler	= zfcp_scsi_eh_abort_handler,
 		.eh_device_reset_handler = zfcp_scsi_eh_device_reset_handler,
-		.eh_bus_reset_handler	= zfcp_scsi_eh_bus_reset_handler,
+		.eh_bus_reset_handler	= zfcp_scsi_eh_host_reset_handler,
 		.eh_host_reset_handler	= zfcp_scsi_eh_host_reset_handler,
 		.can_queue		= 4096,
 		.this_id		= -1,
-		/*
-		 * FIXME:
-		 * one less? can zfcp_create_sbale cope with it?
-		 */
 		.sg_tablesize		= ZFCP_MAX_SBALES_PER_REQ,
 		.cmd_per_lun		= 1,
-		.unchecked_isa_dma	= 0,
 		.use_clustering		= 1,
 		.sdev_attrs		= zfcp_sysfs_sdev_attrs,
 	},
 	.driver_version = ZFCP_VERSION,
-	/* rest initialised with zeros */
 };
 
 /* Find start of Response Information in FCP response unit*/
@@ -176,8 +167,14 @@ zfcp_scsi_slave_alloc(struct scsi_device *sdp)
 	return retval;
 }
 
-static void
-zfcp_scsi_slave_destroy(struct scsi_device *sdpnt)
+/**
+ * zfcp_scsi_slave_destroy - called when scsi device is removed
+ *
+ * Remove reference to associated scsi device for an zfcp_unit.
+ * Mark zfcp_unit as failed. The scsi device might be deleted via sysfs
+ * or a scan for this device might have failed.
+ */
+static void zfcp_scsi_slave_destroy(struct scsi_device *sdpnt)
 {
 	struct zfcp_unit *unit = (struct zfcp_unit *) sdpnt->hostdata;
 
@@ -185,6 +182,7 @@ zfcp_scsi_slave_destroy(struct scsi_device *sdpnt)
 		atomic_clear_mask(ZFCP_STATUS_UNIT_REGISTERED, &unit->status);
 		sdpnt->hostdata = NULL;
 		unit->device = NULL;
+		zfcp_erp_unit_failed(unit);
 		zfcp_unit_put(unit);
 	} else {
 		ZFCP_LOG_NORMAL("bug: no unit associated with SCSI device at "
@@ -549,35 +547,38 @@ zfcp_task_management_function(struct zfcp_unit *unit, u8 tm_flags,
 }
 
 /**
- * zfcp_scsi_eh_bus_reset_handler - reset bus (reopen adapter)
+ * zfcp_scsi_eh_host_reset_handler - handler for host and bus reset
+ *
+ * If ERP is already running it will be stopped.
  */
-int
-zfcp_scsi_eh_bus_reset_handler(struct scsi_cmnd *scpnt)
+int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
 {
-	struct zfcp_unit *unit = (struct zfcp_unit*) scpnt->device->hostdata;
-	struct zfcp_adapter *adapter = unit->port->adapter;
-
-	ZFCP_LOG_NORMAL("bus reset because of problems with "
-			"unit 0x%016Lx\n", unit->fcp_lun);
-	zfcp_erp_adapter_reopen(adapter, 0);
-	zfcp_erp_wait(adapter);
-
-	return SUCCESS;
-}
+	struct zfcp_unit *unit;
+	struct zfcp_adapter *adapter;
+	unsigned long flags;
 
-/**
- * zfcp_scsi_eh_host_reset_handler - reset host (reopen adapter)
- */
-int
-zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
-{
-	struct zfcp_unit *unit = (struct zfcp_unit*) scpnt->device->hostdata;
-	struct zfcp_adapter *adapter = unit->port->adapter;
+	unit = (struct zfcp_unit*) scpnt->device->hostdata;
+	adapter = unit->port->adapter;
 
-	ZFCP_LOG_NORMAL("host reset because of problems with "
+	ZFCP_LOG_NORMAL("host/bus reset because of problems with "
 			"unit 0x%016Lx\n", unit->fcp_lun);
-	zfcp_erp_adapter_reopen(adapter, 0);
-	zfcp_erp_wait(adapter);
+
+	write_lock_irqsave(&adapter->erp_lock, flags);
+	if (atomic_test_mask(ZFCP_STATUS_ADAPTER_ERP_PENDING,
+			     &adapter->status)) {
+		zfcp_erp_modify_adapter_status(adapter,
+		       ZFCP_STATUS_COMMON_UNBLOCKED|ZFCP_STATUS_COMMON_OPEN,
+		       ZFCP_CLEAR);
+		zfcp_erp_action_dismiss_adapter(adapter);
+		write_unlock_irqrestore(&adapter->erp_lock, flags);
+		zfcp_fsf_req_dismiss_all(adapter);
+		adapter->fsf_req_seq_no = 0;
+		zfcp_erp_adapter_reopen(adapter, 0);
+	} else {
+		write_unlock_irqrestore(&adapter->erp_lock, flags);
+		zfcp_erp_adapter_reopen(adapter, 0);
+		zfcp_erp_wait(adapter);
+	}
 
 	return SUCCESS;
 }
diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c
index ab2f8b26790..bcb3444f1dc 100644
--- a/drivers/scsi/hptiop.c
+++ b/drivers/scsi/hptiop.c
@@ -45,10 +45,6 @@ static char driver_name[] = "hptiop";
 static const char driver_name_long[] = "RocketRAID 3xxx SATA Controller driver";
 static const char driver_ver[] = "v1.0 (060426)";
 
-static DEFINE_SPINLOCK(hptiop_hba_list_lock);
-static LIST_HEAD(hptiop_hba_list);
-static int hptiop_cdev_major = -1;
-
 static void hptiop_host_request_callback(struct hptiop_hba *hba, u32 tag);
 static void hptiop_iop_request_callback(struct hptiop_hba *hba, u32 tag);
 static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg);
@@ -577,7 +573,7 @@ static int hptiop_reset_hba(struct hptiop_hba *hba)
 	if (atomic_xchg(&hba->resetting, 1) == 0) {
 		atomic_inc(&hba->reset_count);
 		writel(IOPMU_INBOUND_MSG0_RESET,
-				&hba->iop->outbound_msgaddr0);
+				&hba->iop->inbound_msgaddr0);
 		hptiop_pci_posting_flush(hba->iop);
 	}
 
@@ -620,532 +616,11 @@ static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev,
 	return queue_depth;
 }
 
-struct hptiop_getinfo {
-	char __user *buffer;
-	loff_t buflength;
-	loff_t bufoffset;
-	loff_t buffillen;
-	loff_t filpos;
-};
-
-static void hptiop_copy_mem_info(struct hptiop_getinfo *pinfo,
-					char *data, int datalen)
-{
-	if (pinfo->filpos < pinfo->bufoffset) {
-		if (pinfo->filpos + datalen <= pinfo->bufoffset) {
-			pinfo->filpos += datalen;
-			return;
-		} else {
-			data += (pinfo->bufoffset - pinfo->filpos);
-			datalen  -= (pinfo->bufoffset - pinfo->filpos);
-			pinfo->filpos = pinfo->bufoffset;
-		}
-	}
-
-	pinfo->filpos += datalen;
-	if (pinfo->buffillen == pinfo->buflength)
-		return;
-
-	if (pinfo->buflength - pinfo->buffillen < datalen)
-		datalen = pinfo->buflength - pinfo->buffillen;
-
-	if (copy_to_user(pinfo->buffer + pinfo->buffillen, data, datalen))
-		return;
-
-	pinfo->buffillen += datalen;
-}
-
-static int hptiop_copy_info(struct hptiop_getinfo *pinfo, char *fmt, ...)
-{
-	va_list args;
-	char buf[128];
-	int len;
-
-	va_start(args, fmt);
-	len = vsnprintf(buf, sizeof(buf), fmt, args);
-	va_end(args);
-	hptiop_copy_mem_info(pinfo, buf, len);
-	return len;
-}
-
-static void hptiop_ioctl_done(struct hpt_ioctl_k *arg)
-{
-	arg->done = NULL;
-	wake_up(&arg->hba->ioctl_wq);
-}
-
-static void hptiop_do_ioctl(struct hpt_ioctl_k *arg)
-{
-	struct hptiop_hba *hba = arg->hba;
-	u32 val;
-	struct hpt_iop_request_ioctl_command __iomem *req;
-	int ioctl_retry = 0;
-
-	dprintk("scsi%d: hptiop_do_ioctl\n", hba->host->host_no);
-
-	/*
-	 * check (in + out) buff size from application.
-	 * outbuf must be dword aligned.
-	 */
-	if (((arg->inbuf_size + 3) & ~3) + arg->outbuf_size >
-			hba->max_request_size
-				- sizeof(struct hpt_iop_request_header)
-				- 4 * sizeof(u32)) {
-		dprintk("scsi%d: ioctl buf size (%d/%d) is too large\n",
-				hba->host->host_no,
-				arg->inbuf_size, arg->outbuf_size);
-		arg->result = HPT_IOCTL_RESULT_FAILED;
-		return;
-	}
-
-retry:
-	spin_lock_irq(hba->host->host_lock);
-
-	val = readl(&hba->iop->inbound_queue);
-	if (val == IOPMU_QUEUE_EMPTY) {
-		spin_unlock_irq(hba->host->host_lock);
-		dprintk("scsi%d: no free req for ioctl\n", hba->host->host_no);
-		arg->result = -1;
-		return;
-	}
-
-	req = (struct hpt_iop_request_ioctl_command __iomem *)
-			((unsigned long)hba->iop + val);
-
-	writel(HPT_CTL_CODE_LINUX_TO_IOP(arg->ioctl_code),
-			&req->ioctl_code);
-	writel(arg->inbuf_size, &req->inbuf_size);
-	writel(arg->outbuf_size, &req->outbuf_size);
-
-	/*
-	 * use the buffer on the IOP local memory first, then copy it
-	 * back to host.
-	 * the caller's request buffer shoudl be little-endian.
-	 */
-	if (arg->inbuf_size)
-		memcpy_toio(req->buf, arg->inbuf, arg->inbuf_size);
-
-	/* correct the controller ID for IOP */
-	if ((arg->ioctl_code == HPT_IOCTL_GET_CHANNEL_INFO ||
-		arg->ioctl_code == HPT_IOCTL_GET_CONTROLLER_INFO_V2 ||
-		arg->ioctl_code == HPT_IOCTL_GET_CONTROLLER_INFO)
-		&& arg->inbuf_size >= sizeof(u32))
-		writel(0, req->buf);
-
-	writel(IOP_REQUEST_TYPE_IOCTL_COMMAND, &req->header.type);
-	writel(0, &req->header.flags);
-	writel(offsetof(struct hpt_iop_request_ioctl_command, buf)
-			+ arg->inbuf_size, &req->header.size);
-	writel((u32)(unsigned long)arg, &req->header.context);
-	writel(BITS_PER_LONG > 32 ? (u32)((unsigned long)arg>>32) : 0,
-			&req->header.context_hi32);
-	writel(IOP_RESULT_PENDING, &req->header.result);
-
-	arg->result = HPT_IOCTL_RESULT_FAILED;
-	arg->done = hptiop_ioctl_done;
-
-	writel(val, &hba->iop->inbound_queue);
-	hptiop_pci_posting_flush(hba->iop);
-
-	spin_unlock_irq(hba->host->host_lock);
-
-	wait_event_timeout(hba->ioctl_wq, arg->done == NULL, 60 * HZ);
-
-	if (arg->done != NULL) {
-		hptiop_reset_hba(hba);
-		if (ioctl_retry++ < 3)
-			goto retry;
-	}
-
-	dprintk("hpt_iop_ioctl %x result %d\n",
-			arg->ioctl_code, arg->result);
-}
-
-static int __hpt_do_ioctl(struct hptiop_hba *hba, u32 code, void *inbuf,
-			u32 insize, void *outbuf, u32 outsize)
-{
-	struct hpt_ioctl_k arg;
-	arg.hba = hba;
-	arg.ioctl_code = code;
-	arg.inbuf = inbuf;
-	arg.outbuf = outbuf;
-	arg.inbuf_size = insize;
-	arg.outbuf_size = outsize;
-	arg.bytes_returned = NULL;
-	hptiop_do_ioctl(&arg);
-	return arg.result;
-}
-
-static inline int hpt_id_valid(__le32 id)
-{
-	return id != 0 && id != cpu_to_le32(0xffffffff);
-}
-
-static int hptiop_get_controller_info(struct hptiop_hba *hba,
-					struct hpt_controller_info *pinfo)
-{
-	int id = 0;
-
-	return __hpt_do_ioctl(hba, HPT_IOCTL_GET_CONTROLLER_INFO,
-		&id, sizeof(int), pinfo, sizeof(*pinfo));
-}
-
-
-static int hptiop_get_channel_info(struct hptiop_hba *hba, int bus,
-					struct hpt_channel_info *pinfo)
-{
-	u32 ids[2];
-
-	ids[0] = 0;
-	ids[1] = bus;
-	return __hpt_do_ioctl(hba, HPT_IOCTL_GET_CHANNEL_INFO,
-				ids, sizeof(ids), pinfo, sizeof(*pinfo));
-
-}
-
-static int hptiop_get_logical_devices(struct hptiop_hba *hba,
-					__le32 *pids, int maxcount)
-{
-	int i;
-	u32 count = maxcount - 1;
-
-	if (__hpt_do_ioctl(hba, HPT_IOCTL_GET_LOGICAL_DEVICES,
-			&count, sizeof(u32),
-			pids, sizeof(u32) * maxcount))
-		return -1;
-
-	maxcount = le32_to_cpu(pids[0]);
-	for (i = 0; i < maxcount; i++)
-		pids[i] = pids[i+1];
-
-	return maxcount;
-}
-
-static int hptiop_get_device_info_v3(struct hptiop_hba *hba, __le32 id,
-				struct hpt_logical_device_info_v3 *pinfo)
-{
-	return __hpt_do_ioctl(hba, HPT_IOCTL_GET_DEVICE_INFO_V3,
-				&id, sizeof(u32),
-				pinfo, sizeof(*pinfo));
-}
-
-static const char *get_array_status(struct hpt_logical_device_info_v3 *devinfo)
-{
-	static char s[64];
-	u32 flags = le32_to_cpu(devinfo->u.array.flags);
-	u32 trans_prog = le32_to_cpu(devinfo->u.array.transforming_progress);
-	u32 reb_prog = le32_to_cpu(devinfo->u.array.rebuilding_progress);
-
-	if (flags & ARRAY_FLAG_DISABLED)
-		return "Disabled";
-	else if (flags & ARRAY_FLAG_TRANSFORMING)
-		sprintf(s, "Expanding/Migrating %d.%d%%%s%s",
-			trans_prog / 100,
-			trans_prog % 100,
-			(flags & (ARRAY_FLAG_NEEDBUILDING|ARRAY_FLAG_BROKEN))?
-					", Critical" : "",
-			((flags & ARRAY_FLAG_NEEDINITIALIZING) &&
-			 !(flags & ARRAY_FLAG_REBUILDING) &&
-			 !(flags & ARRAY_FLAG_INITIALIZING))?
-					", Unintialized" : "");
-	else if ((flags & ARRAY_FLAG_BROKEN) &&
-				devinfo->u.array.array_type != AT_RAID6)
-		return "Critical";
-	else if (flags & ARRAY_FLAG_REBUILDING)
-		sprintf(s,
-			(flags & ARRAY_FLAG_NEEDINITIALIZING)?
-				"%sBackground initializing %d.%d%%" :
-					"%sRebuilding %d.%d%%",
-			(flags & ARRAY_FLAG_BROKEN)? "Critical, " : "",
-			reb_prog / 100,
-			reb_prog % 100);
-	else if (flags & ARRAY_FLAG_VERIFYING)
-		sprintf(s, "%sVerifying %d.%d%%",
-			(flags & ARRAY_FLAG_BROKEN)? "Critical, " : "",
-			reb_prog / 100,
-			reb_prog % 100);
-	else if (flags & ARRAY_FLAG_INITIALIZING)
-		sprintf(s, "%sForground initializing %d.%d%%",
-			(flags & ARRAY_FLAG_BROKEN)? "Critical, " : "",
-			reb_prog / 100,
-			reb_prog % 100);
-	else if (flags & ARRAY_FLAG_NEEDTRANSFORM)
-		sprintf(s,"%s%s%s", "Need Expanding/Migrating",
-			(flags & ARRAY_FLAG_BROKEN)? "Critical, " : "",
-			((flags & ARRAY_FLAG_NEEDINITIALIZING) &&
-			 !(flags & ARRAY_FLAG_REBUILDING) &&
-			 !(flags & ARRAY_FLAG_INITIALIZING))?
-				", Unintialized" : "");
-	else if (flags & ARRAY_FLAG_NEEDINITIALIZING &&
-		!(flags & ARRAY_FLAG_REBUILDING) &&
-		!(flags & ARRAY_FLAG_INITIALIZING))
-		sprintf(s,"%sUninitialized",
-			(flags & ARRAY_FLAG_BROKEN)? "Critical, " : "");
-	else if ((flags & ARRAY_FLAG_NEEDBUILDING) ||
-			(flags & ARRAY_FLAG_BROKEN))
-		return "Critical";
-	else
-		return "Normal";
-	return s;
-}
-
-static void hptiop_dump_devinfo(struct hptiop_hba *hba,
-			struct hptiop_getinfo *pinfo, __le32 id, int indent)
-{
-	struct hpt_logical_device_info_v3 devinfo;
-	int i;
-	u64 capacity;
-
-	for (i = 0; i < indent; i++)
-		hptiop_copy_info(pinfo, "\t");
-
-	if (hptiop_get_device_info_v3(hba, id, &devinfo)) {
-		hptiop_copy_info(pinfo, "unknown\n");
-		return;
-	}
-
-	switch (devinfo.type) {
-
-	case LDT_DEVICE: {
-		struct hd_driveid *driveid;
-		u32 flags = le32_to_cpu(devinfo.u.device.flags);
-
-		driveid = (struct hd_driveid *)devinfo.u.device.ident;
-		/* model[] is 40 chars long, but we just want 20 chars here */
-		driveid->model[20] = 0;
-
-		if (indent)
-			if (flags & DEVICE_FLAG_DISABLED)
-				hptiop_copy_info(pinfo,"Missing\n");
-			else
-				hptiop_copy_info(pinfo, "CH%d %s\n",
-					devinfo.u.device.path_id + 1,
-					driveid->model);
-		else {
-			capacity = le64_to_cpu(devinfo.capacity) * 512;
-			do_div(capacity, 1000000);
-			hptiop_copy_info(pinfo,
-				"CH%d %s, %lluMB, %s %s%s%s%s\n",
-				devinfo.u.device.path_id + 1,
-				driveid->model,
-				capacity,
-				(flags & DEVICE_FLAG_DISABLED)?
-					"Disabled" : "Normal",
-				devinfo.u.device.read_ahead_enabled?
-						"[RA]" : "",
-				devinfo.u.device.write_cache_enabled?
-						"[WC]" : "",
-				devinfo.u.device.TCQ_enabled?
-						"[TCQ]" : "",
-				devinfo.u.device.NCQ_enabled?
-						"[NCQ]" : ""
-			);
-		}
-		break;
-	}
-
-	case LDT_ARRAY:
-		if (devinfo.target_id != INVALID_TARGET_ID)
-			hptiop_copy_info(pinfo, "[DISK %d_%d] ",
-					devinfo.vbus_id, devinfo.target_id);
-
-		capacity = le64_to_cpu(devinfo.capacity) * 512;
-		do_div(capacity, 1000000);
-		hptiop_copy_info(pinfo, "%s (%s), %lluMB, %s\n",
-			devinfo.u.array.name,
-			devinfo.u.array.array_type==AT_RAID0? "RAID0" :
-				devinfo.u.array.array_type==AT_RAID1? "RAID1" :
-				devinfo.u.array.array_type==AT_RAID5? "RAID5" :
-				devinfo.u.array.array_type==AT_RAID6? "RAID6" :
-				devinfo.u.array.array_type==AT_JBOD? "JBOD" :
-					"unknown",
-			capacity,
-			get_array_status(&devinfo));
-		for (i = 0; i < devinfo.u.array.ndisk; i++) {
-			if (hpt_id_valid(devinfo.u.array.members[i])) {
-				if (cpu_to_le16(1<<i) &
-					devinfo.u.array.critical_members)
-					hptiop_copy_info(pinfo, "\t*");
-				hptiop_dump_devinfo(hba, pinfo,
-					devinfo.u.array.members[i], indent+1);
-			}
-			else
-				hptiop_copy_info(pinfo, "\tMissing\n");
-		}
-		if (id == devinfo.u.array.transform_source) {
-			hptiop_copy_info(pinfo, "\tExpanding/Migrating to:\n");
-			hptiop_dump_devinfo(hba, pinfo,
-				devinfo.u.array.transform_target, indent+1);
-		}
-		break;
-	}
-}
-
 static ssize_t hptiop_show_version(struct class_device *class_dev, char *buf)
 {
 	return snprintf(buf, PAGE_SIZE, "%s\n", driver_ver);
 }
 
-static ssize_t hptiop_cdev_read(struct file *filp, char __user *buf,
-				size_t count, loff_t *ppos)
-{
-	struct hptiop_hba *hba = filp->private_data;
-	struct hptiop_getinfo info;
-	int i, j, ndev;
-	struct hpt_controller_info con_info;
-	struct hpt_channel_info chan_info;
-	__le32 ids[32];
-
-	info.buffer     = buf;
-	info.buflength  = count;
-	info.bufoffset  = ppos ? *ppos : 0;
-	info.filpos     = 0;
-	info.buffillen  = 0;
-
-	if (hptiop_get_controller_info(hba, &con_info))
-		return -EIO;
-
-	for (i = 0; i < con_info.num_buses; i++) {
-		if (hptiop_get_channel_info(hba, i, &chan_info) == 0) {
-			if (hpt_id_valid(chan_info.devices[0]))
-				hptiop_dump_devinfo(hba, &info,
-						chan_info.devices[0], 0);
-			if (hpt_id_valid(chan_info.devices[1]))
-				hptiop_dump_devinfo(hba, &info,
-						chan_info.devices[1], 0);
-		}
-	}
-
-	ndev = hptiop_get_logical_devices(hba, ids,
-					sizeof(ids) / sizeof(ids[0]));
-
-	/*
-	 * if hptiop_get_logical_devices fails, ndev==-1 and it just
-	 * output nothing here
-	 */
-	for (j = 0; j < ndev; j++)
-		hptiop_dump_devinfo(hba, &info, ids[j], 0);
-
-	if (ppos)
-		*ppos += info.buffillen;
-
-	return info.buffillen;
-}
-
-static int hptiop_cdev_ioctl(struct inode *inode,  struct file *file,
-					unsigned int cmd, unsigned long arg)
-{
-	struct hptiop_hba *hba = file->private_data;
-	struct hpt_ioctl_u ioctl_u;
-	struct hpt_ioctl_k ioctl_k;
-	u32 bytes_returned;
-	int err = -EINVAL;
-
-	if (copy_from_user(&ioctl_u,
-		(void __user *)arg, sizeof(struct hpt_ioctl_u)))
-		return -EINVAL;
-
-	if (ioctl_u.magic != HPT_IOCTL_MAGIC)
-		return -EINVAL;
-
-	ioctl_k.ioctl_code = ioctl_u.ioctl_code;
-	ioctl_k.inbuf = NULL;
-	ioctl_k.inbuf_size = ioctl_u.inbuf_size;
-	ioctl_k.outbuf = NULL;
-	ioctl_k.outbuf_size = ioctl_u.outbuf_size;
-	ioctl_k.hba = hba;
-	ioctl_k.bytes_returned = &bytes_returned;
-
-	/* verify user buffer */
-	if ((ioctl_k.inbuf_size && !access_ok(VERIFY_READ,
-			ioctl_u.inbuf, ioctl_k.inbuf_size)) ||
-		(ioctl_k.outbuf_size && !access_ok(VERIFY_WRITE,
-			ioctl_u.outbuf, ioctl_k.outbuf_size)) ||
-		(ioctl_u.bytes_returned && !access_ok(VERIFY_WRITE,
-			ioctl_u.bytes_returned, sizeof(u32))) ||
-		ioctl_k.inbuf_size + ioctl_k.outbuf_size > 0x10000) {
-
-		dprintk("scsi%d: got bad user address\n", hba->host->host_no);
-		return -EINVAL;
-	}
-
-	/* map buffer to kernel. */
-	if (ioctl_k.inbuf_size) {
-		ioctl_k.inbuf = kmalloc(ioctl_k.inbuf_size, GFP_KERNEL);
-		if (!ioctl_k.inbuf) {
-			dprintk("scsi%d: fail to alloc inbuf\n",
-					hba->host->host_no);
-			err = -ENOMEM;
-			goto err_exit;
-		}
-
-		if (copy_from_user(ioctl_k.inbuf,
-				ioctl_u.inbuf, ioctl_k.inbuf_size)) {
-			goto err_exit;
-		}
-	}
-
-	if (ioctl_k.outbuf_size) {
-		ioctl_k.outbuf = kmalloc(ioctl_k.outbuf_size, GFP_KERNEL);
-		if (!ioctl_k.outbuf) {
-			dprintk("scsi%d: fail to alloc outbuf\n",
-					hba->host->host_no);
-			err = -ENOMEM;
-			goto err_exit;
-		}
-	}
-
-	hptiop_do_ioctl(&ioctl_k);
-
-	if (ioctl_k.result == HPT_IOCTL_RESULT_OK) {
-		if (ioctl_k.outbuf_size &&
-			copy_to_user(ioctl_u.outbuf,
-				ioctl_k.outbuf, ioctl_k.outbuf_size))
-			goto err_exit;
-
-		if (ioctl_u.bytes_returned &&
-			copy_to_user(ioctl_u.bytes_returned,
-				&bytes_returned, sizeof(u32)))
-			goto err_exit;
-
-		err = 0;
-	}
-
-err_exit:
-	kfree(ioctl_k.inbuf);
-	kfree(ioctl_k.outbuf);
-
-	return err;
-}
-
-static int hptiop_cdev_open(struct inode *inode, struct file *file)
-{
-	struct hptiop_hba *hba;
-	unsigned i = 0, minor = iminor(inode);
-	int ret = -ENODEV;
-
-	spin_lock(&hptiop_hba_list_lock);
-	list_for_each_entry(hba, &hptiop_hba_list, link) {
-		if (i == minor) {
-			file->private_data = hba;
-			ret = 0;
-			goto out;
-		}
-		i++;
-	}
-
-out:
-	spin_unlock(&hptiop_hba_list_lock);
-	return ret;
-}
-
-static struct file_operations hptiop_cdev_fops = {
-	.owner = THIS_MODULE,
-	.read  = hptiop_cdev_read,
-	.ioctl = hptiop_cdev_ioctl,
-	.open  = hptiop_cdev_open,
-};
-
 static ssize_t hptiop_show_fw_version(struct class_device *class_dev, char *buf)
 {
 	struct Scsi_Host *host = class_to_shost(class_dev);
@@ -1296,19 +771,13 @@ static int __devinit hptiop_probe(struct pci_dev *pcidev,
 		goto unmap_pci_bar;
 	}
 
-	if (scsi_add_host(host, &pcidev->dev)) {
-		printk(KERN_ERR "scsi%d: scsi_add_host failed\n",
-					hba->host->host_no);
-		goto unmap_pci_bar;
-	}
-
 	pci_set_drvdata(pcidev, host);
 
 	if (request_irq(pcidev->irq, hptiop_intr, IRQF_SHARED,
 					driver_name, hba)) {
 		printk(KERN_ERR "scsi%d: request irq %d failed\n",
 					hba->host->host_no, pcidev->irq);
-		goto remove_scsi_host;
+		goto unmap_pci_bar;
 	}
 
 	/* Allocate request mem */
@@ -1355,9 +824,12 @@ static int __devinit hptiop_probe(struct pci_dev *pcidev,
 	if (hptiop_initialize_iop(hba))
 		goto free_request_mem;
 
-	spin_lock(&hptiop_hba_list_lock);
-	list_add_tail(&hba->link, &hptiop_hba_list);
-	spin_unlock(&hptiop_hba_list_lock);
+	if (scsi_add_host(host, &pcidev->dev)) {
+		printk(KERN_ERR "scsi%d: scsi_add_host failed\n",
+					hba->host->host_no);
+		goto free_request_mem;
+	}
+
 
 	scsi_scan_host(host);
 
@@ -1372,9 +844,6 @@ free_request_mem:
 free_request_irq:
 	free_irq(hba->pcidev->irq, hba);
 
-remove_scsi_host:
-	scsi_remove_host(host);
-
 unmap_pci_bar:
 	iounmap(hba->iop);
 
@@ -1422,10 +891,6 @@ static void hptiop_remove(struct pci_dev *pcidev)
 
 	scsi_remove_host(host);
 
-	spin_lock(&hptiop_hba_list_lock);
-	list_del_init(&hba->link);
-	spin_unlock(&hptiop_hba_list_lock);
-
 	hptiop_shutdown(pcidev);
 
 	free_irq(hba->pcidev->irq, hba);
@@ -1462,27 +927,12 @@ static struct pci_driver hptiop_pci_driver = {
 
 static int __init hptiop_module_init(void)
 {
-	int error;
-
 	printk(KERN_INFO "%s %s\n", driver_name_long, driver_ver);
-
-	error = pci_register_driver(&hptiop_pci_driver);
-	if (error < 0)
-		return error;
-
-	hptiop_cdev_major = register_chrdev(0, "hptiop", &hptiop_cdev_fops);
-	if (hptiop_cdev_major < 0) {
-		printk(KERN_WARNING "unable to register hptiop device.\n");
-		return hptiop_cdev_major;
-	}
-
-	return 0;
+	return pci_register_driver(&hptiop_pci_driver);
 }
 
 static void __exit hptiop_module_exit(void)
 {
-	dprintk("hptiop_module_exit\n");
-	unregister_chrdev(hptiop_cdev_major, "hptiop");
 	pci_unregister_driver(&hptiop_pci_driver);
 }
 
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 848fb2aa4ca..058f094f945 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -43,13 +43,10 @@
 
 #include "iscsi_tcp.h"
 
-#define ISCSI_TCP_VERSION "1.0-595"
-
 MODULE_AUTHOR("Dmitry Yusupov <dmitry_yus@yahoo.com>, "
 	      "Alex Aizman <itn780@yahoo.com>");
 MODULE_DESCRIPTION("iSCSI/TCP data-path");
 MODULE_LICENSE("GPL");
-MODULE_VERSION(ISCSI_TCP_VERSION);
 /* #define DEBUG_TCP */
 #define DEBUG_ASSERT
 
@@ -185,11 +182,19 @@ iscsi_hdr_extract(struct iscsi_tcp_conn *tcp_conn)
  * must be called with session lock
  */
 static void
-__iscsi_ctask_cleanup(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
+iscsi_tcp_cleanup_ctask(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 {
 	struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
+	struct iscsi_r2t_info *r2t;
 	struct scsi_cmnd *sc;
 
+	/* flush ctask's r2t queues */
+	while (__kfifo_get(tcp_ctask->r2tqueue, (void*)&r2t, sizeof(void*))) {
+		__kfifo_put(tcp_ctask->r2tpool.queue, (void*)&r2t,
+			    sizeof(void*));
+		debug_scsi("iscsi_tcp_cleanup_ctask pending r2t dropped\n");
+	}
+
 	sc = ctask->sc;
 	if (unlikely(!sc))
 		return;
@@ -374,6 +379,7 @@ iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 		spin_unlock(&session->lock);
 		return 0;
 	}
+
 	rc = __kfifo_get(tcp_ctask->r2tpool.queue, (void*)&r2t, sizeof(void*));
 	BUG_ON(!rc);
 
@@ -399,7 +405,7 @@ iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 	tcp_ctask->exp_r2tsn = r2tsn + 1;
 	tcp_ctask->xmstate |= XMSTATE_SOL_HDR;
 	__kfifo_put(tcp_ctask->r2tqueue, (void*)&r2t, sizeof(void*));
-	__kfifo_put(conn->xmitqueue, (void*)&ctask, sizeof(void*));
+	list_move_tail(&ctask->running, &conn->xmitqueue);
 
 	scsi_queue_work(session->host, &conn->xmitwork);
 	conn->r2t_pdus_cnt++;
@@ -477,6 +483,8 @@ iscsi_tcp_hdr_recv(struct iscsi_conn *conn)
 	case ISCSI_OP_SCSI_DATA_IN:
 		tcp_conn->in.ctask = session->cmds[itt];
 		rc = iscsi_data_rsp(conn, tcp_conn->in.ctask);
+		if (rc)
+			return rc;
 		/* fall through */
 	case ISCSI_OP_SCSI_CMD_RSP:
 		tcp_conn->in.ctask = session->cmds[itt];
@@ -484,7 +492,7 @@ iscsi_tcp_hdr_recv(struct iscsi_conn *conn)
 			goto copy_hdr;
 
 		spin_lock(&session->lock);
-		__iscsi_ctask_cleanup(conn, tcp_conn->in.ctask);
+		iscsi_tcp_cleanup_ctask(conn, tcp_conn->in.ctask);
 		rc = __iscsi_complete_pdu(conn, hdr, NULL, 0);
 		spin_unlock(&session->lock);
 		break;
@@ -500,13 +508,28 @@ iscsi_tcp_hdr_recv(struct iscsi_conn *conn)
 		break;
 	case ISCSI_OP_LOGIN_RSP:
 	case ISCSI_OP_TEXT_RSP:
-	case ISCSI_OP_LOGOUT_RSP:
-	case ISCSI_OP_NOOP_IN:
 	case ISCSI_OP_REJECT:
 	case ISCSI_OP_ASYNC_EVENT:
+		/*
+		 * It is possible that we could get a PDU with a buffer larger
+		 * than 8K, but there are no targets that currently do this.
+		 * For now we fail until we find a vendor that needs it
+		 */
+		if (DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH <
+		    tcp_conn->in.datalen) {
+			printk(KERN_ERR "iscsi_tcp: received buffer of len %u "
+			      "but conn buffer is only %u (opcode %0x)\n",
+			      tcp_conn->in.datalen,
+			      DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH, opcode);
+			rc = ISCSI_ERR_PROTO;
+			break;
+		}
+
 		if (tcp_conn->in.datalen)
 			goto copy_hdr;
 	/* fall through */
+	case ISCSI_OP_LOGOUT_RSP:
+	case ISCSI_OP_NOOP_IN:
 	case ISCSI_OP_SCSI_TMFUNC_RSP:
 		rc = iscsi_complete_pdu(conn, hdr, NULL, 0);
 		break;
@@ -523,7 +546,7 @@ copy_hdr:
 	 * skbs to complete the command then we have to copy the header
 	 * for later use
 	 */
-	if (tcp_conn->in.zero_copy_hdr && tcp_conn->in.copy <
+	if (tcp_conn->in.zero_copy_hdr && tcp_conn->in.copy <=
 	   (tcp_conn->in.datalen + tcp_conn->in.padding +
 	    (conn->datadgst_en ? 4 : 0))) {
 		debug_tcp("Copying header for later use. in.copy %d in.datalen"
@@ -614,9 +637,9 @@ iscsi_ctask_copy(struct iscsi_tcp_conn *tcp_conn, struct iscsi_cmd_task *ctask,
  *	byte counters.
  **/
 static inline int
-iscsi_tcp_copy(struct iscsi_tcp_conn *tcp_conn)
+iscsi_tcp_copy(struct iscsi_conn *conn)
 {
-	void *buf = tcp_conn->data;
+	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
 	int buf_size = tcp_conn->in.datalen;
 	int buf_left = buf_size - tcp_conn->data_copied;
 	int size = min(tcp_conn->in.copy, buf_left);
@@ -627,7 +650,7 @@ iscsi_tcp_copy(struct iscsi_tcp_conn *tcp_conn)
 	BUG_ON(size <= 0);
 
 	rc = skb_copy_bits(tcp_conn->in.skb, tcp_conn->in.offset,
-			   (char*)buf + tcp_conn->data_copied, size);
+			   (char*)conn->data + tcp_conn->data_copied, size);
 	BUG_ON(rc);
 
 	tcp_conn->in.offset += size;
@@ -745,10 +768,11 @@ static int iscsi_scsi_data_in(struct iscsi_conn *conn)
 done:
 	/* check for non-exceptional status */
 	if (tcp_conn->in.hdr->flags & ISCSI_FLAG_DATA_STATUS) {
-		debug_scsi("done [sc %lx res %d itt 0x%x]\n",
-			   (long)sc, sc->result, ctask->itt);
+		debug_scsi("done [sc %lx res %d itt 0x%x flags 0x%x]\n",
+			   (long)sc, sc->result, ctask->itt,
+			   tcp_conn->in.hdr->flags);
 		spin_lock(&conn->session->lock);
-		__iscsi_ctask_cleanup(conn, ctask);
+		iscsi_tcp_cleanup_ctask(conn, ctask);
 		__iscsi_complete_pdu(conn, tcp_conn->in.hdr, NULL, 0);
 		spin_unlock(&conn->session->lock);
 	}
@@ -769,26 +793,25 @@ iscsi_data_recv(struct iscsi_conn *conn)
 		break;
 	case ISCSI_OP_SCSI_CMD_RSP:
 		spin_lock(&conn->session->lock);
-		__iscsi_ctask_cleanup(conn, tcp_conn->in.ctask);
+		iscsi_tcp_cleanup_ctask(conn, tcp_conn->in.ctask);
 		spin_unlock(&conn->session->lock);
 	case ISCSI_OP_TEXT_RSP:
 	case ISCSI_OP_LOGIN_RSP:
-	case ISCSI_OP_NOOP_IN:
 	case ISCSI_OP_ASYNC_EVENT:
 	case ISCSI_OP_REJECT:
 		/*
 		 * Collect data segment to the connection's data
 		 * placeholder
 		 */
-		if (iscsi_tcp_copy(tcp_conn)) {
+		if (iscsi_tcp_copy(conn)) {
 			rc = -EAGAIN;
 			goto exit;
 		}
 
-		rc = iscsi_complete_pdu(conn, tcp_conn->in.hdr, tcp_conn->data,
+		rc = iscsi_complete_pdu(conn, tcp_conn->in.hdr, conn->data,
 					tcp_conn->in.datalen);
 		if (!rc && conn->datadgst_en && opcode != ISCSI_OP_LOGIN_RSP)
-			iscsi_recv_digest_update(tcp_conn, tcp_conn->data,
+			iscsi_recv_digest_update(tcp_conn, conn->data,
 			  			tcp_conn->in.datalen);
 		break;
 	default:
@@ -843,7 +866,7 @@ more:
 		       if (rc == -EAGAIN)
 				goto nomore;
 		       else {
-				iscsi_conn_failure(conn, rc);
+				iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
 				return 0;
 		       }
 		}
@@ -897,7 +920,7 @@ more:
 		if (rc) {
 			if (rc == -EAGAIN)
 				goto again;
-			iscsi_conn_failure(conn, rc);
+			iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
 			return 0;
 		}
 		tcp_conn->in.copy -= tcp_conn->in.padding;
@@ -1028,9 +1051,8 @@ iscsi_conn_set_callbacks(struct iscsi_conn *conn)
 }
 
 static void
-iscsi_conn_restore_callbacks(struct iscsi_conn *conn)
+iscsi_conn_restore_callbacks(struct iscsi_tcp_conn *tcp_conn)
 {
-	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
 	struct sock *sk = tcp_conn->sock->sk;
 
 	/* restore socket callbacks, see also: iscsi_conn_set_callbacks() */
@@ -1308,7 +1330,7 @@ iscsi_tcp_cmd_init(struct iscsi_cmd_task *ctask)
 				    ctask->imm_count -
 				    ctask->unsol_count;
 
-		debug_scsi("cmd [itt %x total %d imm %d imm_data %d "
+		debug_scsi("cmd [itt 0x%x total %d imm %d imm_data %d "
 			   "r2t_data %d]\n",
 			   ctask->itt, ctask->total_length, ctask->imm_count,
 			   ctask->unsol_count, tcp_ctask->r2t_data_count);
@@ -1636,7 +1658,7 @@ handle_xmstate_sol_data(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 	}
 solicit_again:
 	/*
-	 * send Data-Out whitnin this R2T sequence.
+	 * send Data-Out within this R2T sequence.
 	 */
 	if (!r2t->data_count)
 		goto data_out_done;
@@ -1731,7 +1753,7 @@ handle_xmstate_w_pad(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 	struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
 	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
 	struct iscsi_data_task *dtask = tcp_ctask->dtask;
-	int sent, rc;
+	int sent = 0, rc;
 
 	tcp_ctask->xmstate &= ~XMSTATE_W_PAD;
 	iscsi_buf_init_iov(&tcp_ctask->sendbuf, (char*)&tcp_ctask->pad,
@@ -1900,27 +1922,32 @@ iscsi_tcp_conn_create(struct iscsi_cls_session *cls_session, uint32_t conn_idx)
 	tcp_conn->in_progress = IN_PROGRESS_WAIT_HEADER;
 	/* initial operational parameters */
 	tcp_conn->hdr_size = sizeof(struct iscsi_hdr);
-	tcp_conn->data_size = DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH;
-
-	/* allocate initial PDU receive place holder */
-	if (tcp_conn->data_size <= PAGE_SIZE)
-		tcp_conn->data = kmalloc(tcp_conn->data_size, GFP_KERNEL);
-	else
-		tcp_conn->data = (void*)__get_free_pages(GFP_KERNEL,
-					get_order(tcp_conn->data_size));
-	if (!tcp_conn->data)
-		goto max_recv_dlenght_alloc_fail;
 
 	return cls_conn;
 
-max_recv_dlenght_alloc_fail:
-	kfree(tcp_conn);
 tcp_conn_alloc_fail:
 	iscsi_conn_teardown(cls_conn);
 	return NULL;
 }
 
 static void
+iscsi_tcp_release_conn(struct iscsi_conn *conn)
+{
+	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
+
+	if (!tcp_conn->sock)
+		return;
+
+	sock_hold(tcp_conn->sock->sk);
+	iscsi_conn_restore_callbacks(tcp_conn);
+	sock_put(tcp_conn->sock->sk);
+
+	sock_release(tcp_conn->sock);
+	tcp_conn->sock = NULL;
+	conn->recv_lock = NULL;
+}
+
+static void
 iscsi_tcp_conn_destroy(struct iscsi_cls_conn *cls_conn)
 {
 	struct iscsi_conn *conn = cls_conn->dd_data;
@@ -1930,6 +1957,7 @@ iscsi_tcp_conn_destroy(struct iscsi_cls_conn *cls_conn)
 	if (conn->hdrdgst_en || conn->datadgst_en)
 		digest = 1;
 
+	iscsi_tcp_release_conn(conn);
 	iscsi_conn_teardown(cls_conn);
 
 	/* now free tcp_conn */
@@ -1944,15 +1972,18 @@ iscsi_tcp_conn_destroy(struct iscsi_cls_conn *cls_conn)
 			crypto_free_tfm(tcp_conn->data_rx_tfm);
 	}
 
-	/* free conn->data, size = MaxRecvDataSegmentLength */
-	if (tcp_conn->data_size <= PAGE_SIZE)
-		kfree(tcp_conn->data);
-	else
-		free_pages((unsigned long)tcp_conn->data,
-			   get_order(tcp_conn->data_size));
 	kfree(tcp_conn);
 }
 
+static void
+iscsi_tcp_conn_stop(struct iscsi_cls_conn *cls_conn, int flag)
+{
+	struct iscsi_conn *conn = cls_conn->dd_data;
+
+	iscsi_conn_stop(cls_conn, flag);
+	iscsi_tcp_release_conn(conn);
+}
+
 static int
 iscsi_tcp_conn_bind(struct iscsi_cls_session *cls_session,
 		    struct iscsi_cls_conn *cls_conn, uint64_t transport_eph,
@@ -2001,52 +2032,6 @@ iscsi_tcp_conn_bind(struct iscsi_cls_session *cls_session,
 	return 0;
 }
 
-static void
-iscsi_tcp_cleanup_ctask(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
-{
-	struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
-	struct iscsi_r2t_info *r2t;
-
-	/* flush ctask's r2t queues */
-	while (__kfifo_get(tcp_ctask->r2tqueue, (void*)&r2t, sizeof(void*)))
-		__kfifo_put(tcp_ctask->r2tpool.queue, (void*)&r2t,
-			    sizeof(void*));
-
-	__iscsi_ctask_cleanup(conn, ctask);
-}
-
-static void
-iscsi_tcp_suspend_conn_rx(struct iscsi_conn *conn)
-{
-	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
-	struct sock *sk;
-
-	if (!tcp_conn->sock)
-		return;
-
-	sk = tcp_conn->sock->sk;
-	write_lock_bh(&sk->sk_callback_lock);
-	set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx);
-	write_unlock_bh(&sk->sk_callback_lock);
-}
-
-static void
-iscsi_tcp_terminate_conn(struct iscsi_conn *conn)
-{
-	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
-
-	if (!tcp_conn->sock)
-		return;
-
-	sock_hold(tcp_conn->sock->sk);
-	iscsi_conn_restore_callbacks(conn);
-	sock_put(tcp_conn->sock->sk);
-
-	sock_release(tcp_conn->sock);
-	tcp_conn->sock = NULL;
-	conn->recv_lock = NULL;
-}
-
 /* called with host lock */
 static void
 iscsi_tcp_mgmt_init(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask,
@@ -2057,6 +2042,7 @@ iscsi_tcp_mgmt_init(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask,
 	iscsi_buf_init_iov(&tcp_mtask->headbuf, (char*)mtask->hdr,
 			   sizeof(struct iscsi_hdr));
 	tcp_mtask->xmstate = XMSTATE_IMM_HDR;
+	tcp_mtask->sent = 0;
 
 	if (mtask->data_count)
 		iscsi_buf_init_iov(&tcp_mtask->sendbuf, (char*)mtask->data,
@@ -2138,39 +2124,6 @@ iscsi_conn_set_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param,
 	int value;
 
 	switch(param) {
-	case ISCSI_PARAM_MAX_RECV_DLENGTH: {
-		char *saveptr = tcp_conn->data;
-		gfp_t flags = GFP_KERNEL;
-
-		sscanf(buf, "%d", &value);
-		if (tcp_conn->data_size >= value) {
-			iscsi_set_param(cls_conn, param, buf, buflen);
-			break;
-		}
-
-		spin_lock_bh(&session->lock);
-		if (conn->stop_stage == STOP_CONN_RECOVER)
-			flags = GFP_ATOMIC;
-		spin_unlock_bh(&session->lock);
-
-		if (value <= PAGE_SIZE)
-			tcp_conn->data = kmalloc(value, flags);
-		else
-			tcp_conn->data = (void*)__get_free_pages(flags,
-							     get_order(value));
-		if (tcp_conn->data == NULL) {
-			tcp_conn->data = saveptr;
-			return -ENOMEM;
-		}
-		if (tcp_conn->data_size <= PAGE_SIZE)
-			kfree(saveptr);
-		else
-			free_pages((unsigned long)saveptr,
-				   get_order(tcp_conn->data_size));
-		iscsi_set_param(cls_conn, param, buf, buflen);
-		tcp_conn->data_size = value;
-		break;
-		}
 	case ISCSI_PARAM_HDRDGST_EN:
 		iscsi_set_param(cls_conn, param, buf, buflen);
 		tcp_conn->hdr_size = sizeof(struct iscsi_hdr);
@@ -2361,8 +2314,7 @@ static void iscsi_tcp_session_destroy(struct iscsi_cls_session *cls_session)
 }
 
 static struct scsi_host_template iscsi_sht = {
-	.name			= "iSCSI Initiator over TCP/IP, v"
-				  ISCSI_TCP_VERSION,
+	.name			= "iSCSI Initiator over TCP/IP",
 	.queuecommand           = iscsi_queuecommand,
 	.change_queue_depth	= iscsi_change_queue_depth,
 	.can_queue		= ISCSI_XMIT_CMDS_MAX - 1,
@@ -2414,10 +2366,7 @@ static struct iscsi_transport iscsi_tcp_transport = {
 	.get_conn_param		= iscsi_tcp_conn_get_param,
 	.get_session_param	= iscsi_session_get_param,
 	.start_conn		= iscsi_conn_start,
-	.stop_conn		= iscsi_conn_stop,
-	/* these are called as part of conn recovery */
-	.suspend_conn_recv	= iscsi_tcp_suspend_conn_rx,
-	.terminate_conn		= iscsi_tcp_terminate_conn,
+	.stop_conn		= iscsi_tcp_conn_stop,
 	/* IO */
 	.send_pdu		= iscsi_conn_send_pdu,
 	.get_stats		= iscsi_conn_get_stats,
diff --git a/drivers/scsi/iscsi_tcp.h b/drivers/scsi/iscsi_tcp.h
index 808302832e6..6a4ee704e46 100644
--- a/drivers/scsi/iscsi_tcp.h
+++ b/drivers/scsi/iscsi_tcp.h
@@ -78,8 +78,6 @@ struct iscsi_tcp_conn {
 	char			hdrext[4*sizeof(__u16) +
 				    sizeof(__u32)];
 	int			data_copied;
-	char			*data;		/* data placeholder */
-	int			data_size;	/* actual recv_dlength */
 	int			stop_stage;	/* conn_stop() flag: *
 						 * stop to recover,  *
 						 * stop to terminate */
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 7e6e031cc41..5884cd26d53 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -189,6 +189,7 @@ static void iscsi_complete_command(struct iscsi_session *session,
 {
 	struct scsi_cmnd *sc = ctask->sc;
 
+	ctask->state = ISCSI_TASK_COMPLETED;
 	ctask->sc = NULL;
 	list_del_init(&ctask->running);
 	__kfifo_put(session->cmdpool.queue, (void*)&ctask, sizeof(void*));
@@ -275,6 +276,25 @@ out:
 	return rc;
 }
 
+static void iscsi_tmf_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr)
+{
+	struct iscsi_tm_rsp *tmf = (struct iscsi_tm_rsp *)hdr;
+
+	conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1;
+	conn->tmfrsp_pdus_cnt++;
+
+	if (conn->tmabort_state != TMABORT_INITIAL)
+		return;
+
+	if (tmf->response == ISCSI_TMF_RSP_COMPLETE)
+		conn->tmabort_state = TMABORT_SUCCESS;
+	else if (tmf->response == ISCSI_TMF_RSP_NO_TASK)
+		conn->tmabort_state = TMABORT_NOT_FOUND;
+	else
+		conn->tmabort_state = TMABORT_FAILED;
+	wake_up(&conn->ehwait);
+}
+
 /**
  * __iscsi_complete_pdu - complete pdu
  * @conn: iscsi conn
@@ -340,6 +360,10 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
 
 		switch(opcode) {
 		case ISCSI_OP_LOGOUT_RSP:
+			if (datalen) {
+				rc = ISCSI_ERR_PROTO;
+				break;
+			}
 			conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1;
 			/* fall through */
 		case ISCSI_OP_LOGIN_RSP:
@@ -348,7 +372,8 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
 			 * login related PDU's exp_statsn is handled in
 			 * userspace
 			 */
-			rc = iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen);
+			if (iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen))
+				rc = ISCSI_ERR_CONN_FAILED;
 			list_del(&mtask->running);
 			if (conn->login_mtask != mtask)
 				__kfifo_put(session->mgmtpool.queue,
@@ -360,25 +385,17 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
 				break;
 			}
 
-			conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1;
-			conn->tmfrsp_pdus_cnt++;
-			if (conn->tmabort_state == TMABORT_INITIAL) {
-				conn->tmabort_state =
-					((struct iscsi_tm_rsp *)hdr)->
-					response == ISCSI_TMF_RSP_COMPLETE ?
-						TMABORT_SUCCESS:TMABORT_FAILED;
-				/* unblock eh_abort() */
-				wake_up(&conn->ehwait);
-			}
+			iscsi_tmf_rsp(conn, hdr);
 			break;
 		case ISCSI_OP_NOOP_IN:
-			if (hdr->ttt != ISCSI_RESERVED_TAG) {
+			if (hdr->ttt != ISCSI_RESERVED_TAG || datalen) {
 				rc = ISCSI_ERR_PROTO;
 				break;
 			}
 			conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1;
 
-			rc = iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen);
+			if (iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen))
+				rc = ISCSI_ERR_CONN_FAILED;
 			list_del(&mtask->running);
 			if (conn->login_mtask != mtask)
 				__kfifo_put(session->mgmtpool.queue,
@@ -391,14 +408,21 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
 	} else if (itt == ISCSI_RESERVED_TAG) {
 		switch(opcode) {
 		case ISCSI_OP_NOOP_IN:
-			if (!datalen) {
-				rc = iscsi_check_assign_cmdsn(session,
-						 (struct iscsi_nopin*)hdr);
-				if (!rc && hdr->ttt != ISCSI_RESERVED_TAG)
-					rc = iscsi_recv_pdu(conn->cls_conn,
-							    hdr, NULL, 0);
-			} else
+			if (datalen) {
 				rc = ISCSI_ERR_PROTO;
+				break;
+			}
+
+			rc = iscsi_check_assign_cmdsn(session,
+						 (struct iscsi_nopin*)hdr);
+			if (rc)
+				break;
+
+			if (hdr->ttt == ISCSI_RESERVED_TAG)
+				break;
+
+			if (iscsi_recv_pdu(conn->cls_conn, hdr, NULL, 0))
+				rc = ISCSI_ERR_CONN_FAILED;
 			break;
 		case ISCSI_OP_REJECT:
 			/* we need sth like iscsi_reject_rsp()*/
@@ -568,20 +592,24 @@ static int iscsi_data_xmit(struct iscsi_conn *conn)
 	}
 
 	/* process command queue */
-	while (__kfifo_get(conn->xmitqueue, (void*)&conn->ctask,
-			   sizeof(void*))) {
+	spin_lock_bh(&conn->session->lock);
+	while (!list_empty(&conn->xmitqueue)) {
 		/*
 		 * iscsi tcp may readd the task to the xmitqueue to send
 		 * write data
 		 */
-		spin_lock_bh(&conn->session->lock);
-		if (list_empty(&conn->ctask->running))
-			list_add_tail(&conn->ctask->running, &conn->run_list);
+		conn->ctask = list_entry(conn->xmitqueue.next,
+					 struct iscsi_cmd_task, running);
+		conn->ctask->state = ISCSI_TASK_RUNNING;
+		list_move_tail(conn->xmitqueue.next, &conn->run_list);
 		spin_unlock_bh(&conn->session->lock);
+
 		rc = tt->xmit_cmd_task(conn, conn->ctask);
 		if (rc)
 			goto again;
+		spin_lock_bh(&conn->session->lock);
 	}
+	spin_unlock_bh(&conn->session->lock);
 	/* done with this ctask */
 	conn->ctask = NULL;
 
@@ -691,6 +719,7 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
 	sc->SCp.phase = session->age;
 	sc->SCp.ptr = (char *)ctask;
 
+	ctask->state = ISCSI_TASK_PENDING;
 	ctask->mtask = NULL;
 	ctask->conn = conn;
 	ctask->sc = sc;
@@ -700,7 +729,7 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
 
 	session->tt->init_cmd_task(ctask);
 
-	__kfifo_put(conn->xmitqueue, (void*)&ctask, sizeof(void*));
+	list_add_tail(&ctask->running, &conn->xmitqueue);
 	debug_scsi(
 	       "ctask enq [%s cid %d sc %lx itt 0x%x len %d cmdsn %d win %d]\n",
 		sc->sc_data_direction == DMA_TO_DEVICE ? "write" : "read",
@@ -977,31 +1006,27 @@ static int iscsi_exec_abort_task(struct scsi_cmnd *sc,
 /*
  * xmit mutex and session lock must be held
  */
-#define iscsi_remove_task(tasktype)					\
-static struct iscsi_##tasktype *					\
-iscsi_remove_##tasktype(struct kfifo *fifo, uint32_t itt)		\
-{									\
-	int i, nr_tasks = __kfifo_len(fifo) / sizeof(void*);		\
-	struct iscsi_##tasktype *task;					\
-									\
-	debug_scsi("searching %d tasks\n", nr_tasks);			\
-									\
-	for (i = 0; i < nr_tasks; i++) {				\
-		__kfifo_get(fifo, (void*)&task, sizeof(void*));		\
-		debug_scsi("check task %u\n", task->itt);		\
-									\
-		if (task->itt == itt) {					\
-			debug_scsi("matched task\n");			\
-			return task;					\
-		}							\
-									\
-		__kfifo_put(fifo, (void*)&task, sizeof(void*));		\
-	}								\
-	return NULL;							\
-}
+static struct iscsi_mgmt_task *
+iscsi_remove_mgmt_task(struct kfifo *fifo, uint32_t itt)
+{
+	int i, nr_tasks = __kfifo_len(fifo) / sizeof(void*);
+	struct iscsi_mgmt_task *task;
 
-iscsi_remove_task(mgmt_task);
-iscsi_remove_task(cmd_task);
+	debug_scsi("searching %d tasks\n", nr_tasks);
+
+	for (i = 0; i < nr_tasks; i++) {
+		__kfifo_get(fifo, (void*)&task, sizeof(void*));
+		debug_scsi("check task %u\n", task->itt);
+
+		if (task->itt == itt) {
+			debug_scsi("matched task\n");
+			return task;
+		}
+
+		__kfifo_put(fifo, (void*)&task, sizeof(void*));
+	}
+	return NULL;
+}
 
 static int iscsi_ctask_mtask_cleanup(struct iscsi_cmd_task *ctask)
 {
@@ -1027,12 +1052,13 @@ static void fail_command(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask,
 {
 	struct scsi_cmnd *sc;
 
-	conn->session->tt->cleanup_cmd_task(conn, ctask);
-	iscsi_ctask_mtask_cleanup(ctask);
-
 	sc = ctask->sc;
 	if (!sc)
 		return;
+
+	conn->session->tt->cleanup_cmd_task(conn, ctask);
+	iscsi_ctask_mtask_cleanup(ctask);
+
 	sc->result = err;
 	sc->resid = sc->request_bufflen;
 	iscsi_complete_command(conn->session, ctask);
@@ -1043,7 +1069,6 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
 	struct iscsi_cmd_task *ctask = (struct iscsi_cmd_task *)sc->SCp.ptr;
 	struct iscsi_conn *conn = ctask->conn;
 	struct iscsi_session *session = conn->session;
-	struct iscsi_cmd_task *pending_ctask;
 	int rc;
 
 	conn->eh_abort_cnt++;
@@ -1061,8 +1086,11 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
 		goto failed;
 
 	/* ctask completed before time out */
-	if (!ctask->sc)
-		goto success;
+	if (!ctask->sc) {
+		spin_unlock_bh(&session->lock);
+		debug_scsi("sc completed while abort in progress\n");
+		goto success_rel_mutex;
+	}
 
 	/* what should we do here ? */
 	if (conn->ctask == ctask) {
@@ -1071,17 +1099,8 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
 		goto failed;
 	}
 
-	/* check for the easy pending cmd abort */
-	pending_ctask = iscsi_remove_cmd_task(conn->xmitqueue, ctask->itt);
-	if (pending_ctask) {
-		/* iscsi_tcp queues write transfers on the xmitqueue */
-		if (list_empty(&pending_ctask->running)) {
-			debug_scsi("found pending task\n");
-			goto success;
-		} else
-			__kfifo_put(conn->xmitqueue, (void*)&pending_ctask,
-				    sizeof(void*));
-	}
+	if (ctask->state == ISCSI_TASK_PENDING)
+		goto success_cleanup;
 
 	conn->tmabort_state = TMABORT_INITIAL;
 
@@ -1089,25 +1108,31 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
 	rc = iscsi_exec_abort_task(sc, ctask);
 	spin_lock_bh(&session->lock);
 
-	iscsi_ctask_mtask_cleanup(ctask);
 	if (rc || sc->SCp.phase != session->age ||
 	    session->state != ISCSI_STATE_LOGGED_IN)
 		goto failed;
+	iscsi_ctask_mtask_cleanup(ctask);
 
-	/* ctask completed before tmf abort response */
-	if (!ctask->sc) {
-		debug_scsi("sc completed while abort in progress\n");
-		goto success;
-	}
-
-	if (conn->tmabort_state != TMABORT_SUCCESS) {
+	switch (conn->tmabort_state) {
+	case TMABORT_SUCCESS:
+		goto success_cleanup;
+	case TMABORT_NOT_FOUND:
+		if (!ctask->sc) {
+			/* ctask completed before tmf abort response */
+			spin_unlock_bh(&session->lock);
+			debug_scsi("sc completed while abort in progress\n");
+			goto success_rel_mutex;
+		}
+		/* fall through */
+	default:
+		/* timedout or failed */
 		spin_unlock_bh(&session->lock);
 		iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
 		spin_lock_bh(&session->lock);
 		goto failed;
 	}
 
-success:
+success_cleanup:
 	debug_scsi("abort success [sc %lx itt 0x%x]\n", (long)sc, ctask->itt);
 	spin_unlock_bh(&session->lock);
 
@@ -1121,6 +1146,7 @@ success:
 	spin_unlock(&session->lock);
 	write_unlock_bh(conn->recv_lock);
 
+success_rel_mutex:
 	mutex_unlock(&conn->xmitmutex);
 	return SUCCESS;
 
@@ -1263,6 +1289,7 @@ iscsi_session_setup(struct iscsi_transport *iscsit,
 		if (cmd_task_size)
 			ctask->dd_data = &ctask[1];
 		ctask->itt = cmd_i;
+		INIT_LIST_HEAD(&ctask->running);
 	}
 
 	spin_lock_init(&session->lock);
@@ -1282,6 +1309,7 @@ iscsi_session_setup(struct iscsi_transport *iscsit,
 		if (mgmt_task_size)
 			mtask->dd_data = &mtask[1];
 		mtask->itt = ISCSI_MGMT_ITT_OFFSET + cmd_i;
+		INIT_LIST_HEAD(&mtask->running);
 	}
 
 	if (scsi_add_host(shost, NULL))
@@ -1322,15 +1350,18 @@ void iscsi_session_teardown(struct iscsi_cls_session *cls_session)
 {
 	struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
 	struct iscsi_session *session = iscsi_hostdata(shost->hostdata);
+	struct module *owner = cls_session->transport->owner;
 
 	scsi_remove_host(shost);
 
 	iscsi_pool_free(&session->mgmtpool, (void**)session->mgmt_cmds);
 	iscsi_pool_free(&session->cmdpool, (void**)session->cmds);
 
+	kfree(session->targetname);
+
 	iscsi_destroy_session(cls_session);
 	scsi_host_put(shost);
-	module_put(cls_session->transport->owner);
+	module_put(owner);
 }
 EXPORT_SYMBOL_GPL(iscsi_session_teardown);
 
@@ -1361,12 +1392,7 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session, uint32_t conn_idx)
 	conn->tmabort_state = TMABORT_INITIAL;
 	INIT_LIST_HEAD(&conn->run_list);
 	INIT_LIST_HEAD(&conn->mgmt_run_list);
-
-	/* initialize general xmit PDU commands queue */
-	conn->xmitqueue = kfifo_alloc(session->cmds_max * sizeof(void*),
-					GFP_KERNEL, NULL);
-	if (conn->xmitqueue == ERR_PTR(-ENOMEM))
-		goto xmitqueue_alloc_fail;
+	INIT_LIST_HEAD(&conn->xmitqueue);
 
 	/* initialize general immediate & non-immediate PDU commands queue */
 	conn->immqueue = kfifo_alloc(session->mgmtpool_max * sizeof(void*),
@@ -1394,7 +1420,7 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session, uint32_t conn_idx)
 	data = kmalloc(DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH, GFP_KERNEL);
 	if (!data)
 		goto login_mtask_data_alloc_fail;
-	conn->login_mtask->data = data;
+	conn->login_mtask->data = conn->data = data;
 
 	init_timer(&conn->tmabort_timer);
 	mutex_init(&conn->xmitmutex);
@@ -1410,8 +1436,6 @@ login_mtask_alloc_fail:
 mgmtqueue_alloc_fail:
 	kfifo_free(conn->immqueue);
 immqueue_alloc_fail:
-	kfifo_free(conn->xmitqueue);
-xmitqueue_alloc_fail:
 	iscsi_destroy_conn(cls_conn);
 	return NULL;
 }
@@ -1432,12 +1456,6 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn)
 
 	set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
 	mutex_lock(&conn->xmitmutex);
-	if (conn->c_stage == ISCSI_CONN_INITIAL_STAGE) {
-		if (session->tt->suspend_conn_recv)
-			session->tt->suspend_conn_recv(conn);
-
-		session->tt->terminate_conn(conn);
-	}
 
 	spin_lock_bh(&session->lock);
 	conn->c_stage = ISCSI_CONN_CLEANUP_WAIT;
@@ -1474,7 +1492,8 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn)
 	}
 
 	spin_lock_bh(&session->lock);
-	kfree(conn->login_mtask->data);
+	kfree(conn->data);
+	kfree(conn->persistent_address);
 	__kfifo_put(session->mgmtpool.queue, (void*)&conn->login_mtask,
 		    sizeof(void*));
 	list_del(&conn->item);
@@ -1489,7 +1508,6 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn)
 		session->cmdsn = session->max_cmdsn = session->exp_cmdsn = 1;
 	spin_unlock_bh(&session->lock);
 
-	kfifo_free(conn->xmitqueue);
 	kfifo_free(conn->immqueue);
 	kfifo_free(conn->mgmtqueue);
 
@@ -1572,7 +1590,7 @@ static void fail_all_commands(struct iscsi_conn *conn)
 	struct iscsi_cmd_task *ctask, *tmp;
 
 	/* flush pending */
-	while (__kfifo_get(conn->xmitqueue, (void*)&ctask, sizeof(void*))) {
+	list_for_each_entry_safe(ctask, tmp, &conn->xmitqueue, running) {
 		debug_scsi("failing pending sc %p itt 0x%x\n", ctask->sc,
 			   ctask->itt);
 		fail_command(conn, ctask, DID_BUS_BUSY << 16);
@@ -1615,8 +1633,9 @@ static void iscsi_start_session_recovery(struct iscsi_session *session,
 	set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
 	spin_unlock_bh(&session->lock);
 
-	if (session->tt->suspend_conn_recv)
-		session->tt->suspend_conn_recv(conn);
+	write_lock_bh(conn->recv_lock);
+	set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx);
+	write_unlock_bh(conn->recv_lock);
 
 	mutex_lock(&conn->xmitmutex);
 	/*
@@ -1635,7 +1654,6 @@ static void iscsi_start_session_recovery(struct iscsi_session *session,
 		}
 	}
 
-	session->tt->terminate_conn(conn);
 	/*
 	 * flush queues.
 	 */
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 5c68cdd8736..d384c16f4a8 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -222,7 +222,7 @@ lpfc_issue_lip(struct Scsi_Host *host)
 	pmboxq->mb.mbxCommand = MBX_DOWN_LINK;
 	pmboxq->mb.mbxOwner = OWN_HOST;
 
-	mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
+	mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
 
 	if ((mbxstatus == MBX_SUCCESS) && (pmboxq->mb.mbxStatus == 0)) {
 		memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
@@ -884,7 +884,7 @@ sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
 		    phba->sysfs_mbox.mbox   == NULL ) {
 			sysfs_mbox_idle(phba);
 			spin_unlock_irq(host->host_lock);
-			return -EINVAL;
+			return -EAGAIN;
 		}
 	}
 
@@ -1000,14 +1000,15 @@ sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
 			spin_unlock_irq(phba->host->host_lock);
 			rc = lpfc_sli_issue_mbox_wait (phba,
 						       phba->sysfs_mbox.mbox,
-						       phba->fc_ratov * 2);
+				lpfc_mbox_tmo_val(phba,
+				    phba->sysfs_mbox.mbox->mb.mbxCommand) * HZ);
 			spin_lock_irq(phba->host->host_lock);
 		}
 
 		if (rc != MBX_SUCCESS) {
 			sysfs_mbox_idle(phba);
 			spin_unlock_irq(host->host_lock);
-			return -ENODEV;
+			return  (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
 		}
 		phba->sysfs_mbox.state = SMBOX_READING;
 	}
@@ -1016,7 +1017,7 @@ sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
 		printk(KERN_WARNING  "mbox_read: Bad State\n");
 		sysfs_mbox_idle(phba);
 		spin_unlock_irq(host->host_lock);
-		return -EINVAL;
+		return -EAGAIN;
 	}
 
 	memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
@@ -1210,8 +1211,10 @@ lpfc_get_stats(struct Scsi_Host *shost)
 	struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
 	struct lpfc_sli *psli = &phba->sli;
 	struct fc_host_statistics *hs = &phba->link_stats;
+	struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
 	LPFC_MBOXQ_t *pmboxq;
 	MAILBOX_t *pmb;
+	unsigned long seconds;
 	int rc = 0;
 
 	pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
@@ -1272,22 +1275,103 @@ lpfc_get_stats(struct Scsi_Host *shost)
 	hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
 	hs->error_frames = pmb->un.varRdLnk.crcCnt;
 
+	hs->link_failure_count -= lso->link_failure_count;
+	hs->loss_of_sync_count -= lso->loss_of_sync_count;
+	hs->loss_of_signal_count -= lso->loss_of_signal_count;
+	hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
+	hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
+	hs->invalid_crc_count -= lso->invalid_crc_count;
+	hs->error_frames -= lso->error_frames;
+
 	if (phba->fc_topology == TOPOLOGY_LOOP) {
 		hs->lip_count = (phba->fc_eventTag >> 1);
+		hs->lip_count -= lso->link_events;
 		hs->nos_count = -1;
 	} else {
 		hs->lip_count = -1;
 		hs->nos_count = (phba->fc_eventTag >> 1);
+		hs->nos_count -= lso->link_events;
 	}
 
 	hs->dumped_frames = -1;
 
-/* FIX ME */
-	/*hs->SecondsSinceLastReset = (jiffies - lpfc_loadtime) / HZ;*/
+	seconds = get_seconds();
+	if (seconds < psli->stats_start)
+		hs->seconds_since_last_reset = seconds +
+				((unsigned long)-1 - psli->stats_start);
+	else
+		hs->seconds_since_last_reset = seconds - psli->stats_start;
 
 	return hs;
 }
 
+static void
+lpfc_reset_stats(struct Scsi_Host *shost)
+{
+	struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata;
+	struct lpfc_sli *psli = &phba->sli;
+	struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
+	LPFC_MBOXQ_t *pmboxq;
+	MAILBOX_t *pmb;
+	int rc = 0;
+
+	pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+	if (!pmboxq)
+		return;
+	memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
+
+	pmb = &pmboxq->mb;
+	pmb->mbxCommand = MBX_READ_STATUS;
+	pmb->mbxOwner = OWN_HOST;
+	pmb->un.varWords[0] = 0x1; /* reset request */
+	pmboxq->context1 = NULL;
+
+	if ((phba->fc_flag & FC_OFFLINE_MODE) ||
+		(!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
+		rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
+	else
+		rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
+
+	if (rc != MBX_SUCCESS) {
+		if (rc == MBX_TIMEOUT)
+			pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+		else
+			mempool_free(pmboxq, phba->mbox_mem_pool);
+		return;
+	}
+
+	memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
+	pmb->mbxCommand = MBX_READ_LNK_STAT;
+	pmb->mbxOwner = OWN_HOST;
+	pmboxq->context1 = NULL;
+
+	if ((phba->fc_flag & FC_OFFLINE_MODE) ||
+	    (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
+		rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
+	else
+		rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
+
+	if (rc != MBX_SUCCESS) {
+		if (rc == MBX_TIMEOUT)
+			pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+		else
+			mempool_free( pmboxq, phba->mbox_mem_pool);
+		return;
+	}
+
+	lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
+	lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
+	lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
+	lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
+	lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
+	lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
+	lso->error_frames = pmb->un.varRdLnk.crcCnt;
+	lso->link_events = (phba->fc_eventTag >> 1);
+
+	psli->stats_start = get_seconds();
+
+	return;
+}
 
 /*
  * The LPFC driver treats linkdown handling as target loss events so there
@@ -1431,8 +1515,7 @@ struct fc_function_template lpfc_transport_functions = {
 	 */
 
 	.get_fc_host_stats = lpfc_get_stats,
-
-	/* the LPFC driver doesn't support resetting stats yet */
+	.reset_fc_host_stats = lpfc_reset_stats,
 
 	.dd_fcrport_size = sizeof(struct lpfc_rport_data),
 	.show_rport_maxframe_size = 1,
diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h
index 517e9e4dd46..2a176467f71 100644
--- a/drivers/scsi/lpfc/lpfc_crtn.h
+++ b/drivers/scsi/lpfc/lpfc_crtn.h
@@ -127,6 +127,7 @@ void lpfc_config_port(struct lpfc_hba *, LPFC_MBOXQ_t *);
 void lpfc_kill_board(struct lpfc_hba *, LPFC_MBOXQ_t *);
 void lpfc_mbox_put(struct lpfc_hba *, LPFC_MBOXQ_t *);
 LPFC_MBOXQ_t *lpfc_mbox_get(struct lpfc_hba *);
+int lpfc_mbox_tmo_val(struct lpfc_hba *, int);
 
 int lpfc_mem_alloc(struct lpfc_hba *);
 void lpfc_mem_free(struct lpfc_hba *);
diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c
index b65ee57af53..bbb7310210b 100644
--- a/drivers/scsi/lpfc/lpfc_ct.c
+++ b/drivers/scsi/lpfc/lpfc_ct.c
@@ -131,6 +131,7 @@ lpfc_ct_unsol_event(struct lpfc_hba * phba,
 	}
 
 ct_unsol_event_exit_piocbq:
+	list_del(&head);
 	if (pmbuf) {
 		list_for_each_entry_safe(matp, next_matp, &pmbuf->list, list) {
 			lpfc_mbuf_free(phba, matp->virt, matp->phys);
@@ -481,7 +482,7 @@ lpfc_cmpl_ct_cmd_gid_ft(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
 		if (CTrsp->CommandResponse.bits.CmdRsp ==
 		    be16_to_cpu(SLI_CT_RESPONSE_FS_ACC)) {
 			lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
-					"%d:0239 NameServer Rsp "
+					"%d:0208 NameServer Rsp "
 					"Data: x%x\n",
 					phba->brd_no,
 					phba->fc_flag);
@@ -588,13 +589,9 @@ lpfc_get_hba_sym_node_name(struct lpfc_hba * phba, uint8_t * symbp)
 
 	lpfc_decode_firmware_rev(phba, fwrev, 0);
 
-	if (phba->Port[0]) {
-		sprintf(symbp, "Emulex %s Port %s FV%s DV%s", phba->ModelName,
-			phba->Port, fwrev, lpfc_release_version);
-	} else {
-		sprintf(symbp, "Emulex %s FV%s DV%s", phba->ModelName,
-			fwrev, lpfc_release_version);
-	}
+	sprintf(symbp, "Emulex %s FV%s DV%s", phba->ModelName,
+		fwrev, lpfc_release_version);
+	return;
 }
 
 /*
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index b89f6cb641e..3567de61316 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -1848,9 +1848,12 @@ static void
 lpfc_cmpl_els_acc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
 		  struct lpfc_iocbq * rspiocb)
 {
+	IOCB_t *irsp;
 	struct lpfc_nodelist *ndlp;
 	LPFC_MBOXQ_t *mbox = NULL;
 
+	irsp = &rspiocb->iocb;
+
 	ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
 	if (cmdiocb->context_un.mbox)
 		mbox = cmdiocb->context_un.mbox;
@@ -1893,9 +1896,15 @@ lpfc_cmpl_els_acc(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
 			mempool_free( mbox, phba->mbox_mem_pool);
 		} else {
 			mempool_free( mbox, phba->mbox_mem_pool);
-			if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
-				lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
-				ndlp = NULL;
+			/* Do not call NO_LIST for lpfc_els_abort'ed ELS cmds */
+			if (!((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
+			      ((irsp->un.ulpWord[4] == IOERR_SLI_ABORTED) ||
+			       (irsp->un.ulpWord[4] == IOERR_LINK_DOWN) ||
+			       (irsp->un.ulpWord[4] == IOERR_SLI_DOWN)))) {
+				if (ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
+					lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
+					ndlp = NULL;
+				}
 			}
 		}
 	}
@@ -2839,7 +2848,7 @@ lpfc_els_rsp_rps_acc(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 
 	/* Xmit ELS RPS ACC response tag <ulpIoTag> */
 	lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
-			"%d:0128 Xmit ELS RPS ACC response tag x%x "
+			"%d:0118 Xmit ELS RPS ACC response tag x%x "
 			"Data: x%x x%x x%x x%x x%x\n",
 			phba->brd_no,
 			elsiocb->iocb.ulpIoTag,
@@ -2948,7 +2957,7 @@ lpfc_els_rsp_rpl_acc(struct lpfc_hba * phba, uint16_t cmdsize,
 
 	/* Xmit ELS RPL ACC response tag <ulpIoTag> */
 	lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
-			"%d:0128 Xmit ELS RPL ACC response tag x%x "
+			"%d:0120 Xmit ELS RPL ACC response tag x%x "
 			"Data: x%x x%x x%x x%x x%x\n",
 			phba->brd_no,
 			elsiocb->iocb.ulpIoTag,
@@ -3109,7 +3118,7 @@ lpfc_els_rcv_fan(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
 	struct lpfc_nodelist *ndlp, *next_ndlp;
 
 	/* FAN received */
-	lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:265 FAN received\n",
+	lpfc_printf_log(phba, KERN_INFO, LOG_ELS, "%d:0265 FAN received\n",
 								phba->brd_no);
 
 	icmd = &cmdiocb->iocb;
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index 4d6cf990c4f..b2f1552f184 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -1557,6 +1557,8 @@ lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
 			mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 		}
 	}
+
+	spin_lock_irq(phba->host->host_lock);
 	list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
 		if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
 		   (ndlp == (struct lpfc_nodelist *) mb->context2)) {
@@ -1569,6 +1571,7 @@ lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
 			mempool_free(mb, phba->mbox_mem_pool);
 		}
 	}
+	spin_unlock_irq(phba->host->host_lock);
 
 	lpfc_els_abort(phba,ndlp,0);
 	spin_lock_irq(phba->host->host_lock);
@@ -1782,7 +1785,7 @@ lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
 				/* LOG change to REGLOGIN */
 				/* FIND node DID reglogin */
 				lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
-						"%d:0931 FIND node DID reglogin"
+						"%d:0901 FIND node DID reglogin"
 						" Data: x%p x%x x%x x%x\n",
 						phba->brd_no,
 						ndlp, ndlp->nlp_DID,
@@ -1805,7 +1808,7 @@ lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
 				/* LOG change to PRLI */
 				/* FIND node DID prli */
 				lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
-						"%d:0931 FIND node DID prli "
+						"%d:0902 FIND node DID prli "
 						"Data: x%p x%x x%x x%x\n",
 						phba->brd_no,
 						ndlp, ndlp->nlp_DID,
@@ -1828,7 +1831,7 @@ lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
 				/* LOG change to NPR */
 				/* FIND node DID npr */
 				lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
-						"%d:0931 FIND node DID npr "
+						"%d:0903 FIND node DID npr "
 						"Data: x%p x%x x%x x%x\n",
 						phba->brd_no,
 						ndlp, ndlp->nlp_DID,
@@ -1851,7 +1854,7 @@ lpfc_findnode_did(struct lpfc_hba * phba, uint32_t order, uint32_t did)
 				/* LOG change to UNUSED */
 				/* FIND node DID unused */
 				lpfc_printf_log(phba, KERN_INFO, LOG_NODE,
-						"%d:0931 FIND node DID unused "
+						"%d:0905 FIND node DID unused "
 						"Data: x%p x%x x%x x%x\n",
 						phba->brd_no,
 						ndlp, ndlp->nlp_DID,
@@ -2335,7 +2338,7 @@ lpfc_disc_timeout_handler(struct lpfc_hba *phba)
 		initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 		if (!initlinkmbox) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
-					"%d:0226 Device Discovery "
+					"%d:0206 Device Discovery "
 					"completion error\n",
 					phba->brd_no);
 			phba->hba_state = LPFC_HBA_ERROR;
@@ -2365,7 +2368,7 @@ lpfc_disc_timeout_handler(struct lpfc_hba *phba)
 		if (!clearlambox) {
 			clrlaerr = 1;
 			lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
-					"%d:0226 Device Discovery "
+					"%d:0207 Device Discovery "
 					"completion error\n",
 					phba->brd_no);
 			phba->hba_state = LPFC_HBA_ERROR;
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index ef47b824cbe..f6948ffe689 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -1379,6 +1379,7 @@ lpfc_offline(struct lpfc_hba * phba)
 	/* stop all timers associated with this hba */
 	lpfc_stop_timer(phba);
 	phba->work_hba_events = 0;
+	phba->work_ha = 0;
 
 	lpfc_printf_log(phba,
 		       KERN_WARNING,
@@ -1616,7 +1617,11 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
 		goto out_free_iocbq;
 	}
 
-	/* We can rely on a queue depth attribute only after SLI HBA setup */
+	/*
+	 * Set initial can_queue value since 0 is no longer supported and
+	 * scsi_add_host will fail. This will be adjusted later based on the
+	 * max xri value determined in hba setup.
+	 */
 	host->can_queue = phba->cfg_hba_queue_depth - 10;
 
 	/* Tell the midlayer we support 16 byte commands */
@@ -1656,6 +1661,12 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
 		goto out_free_irq;
 	}
 
+	/*
+	 * hba setup may have changed the hba_queue_depth so we need to adjust
+	 * the value of can_queue.
+	 */
+	host->can_queue = phba->cfg_hba_queue_depth - 10;
+
 	lpfc_discovery_wait(phba);
 
 	if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c
index e42f22aaf71..4d016c2a1b2 100644
--- a/drivers/scsi/lpfc/lpfc_mbox.c
+++ b/drivers/scsi/lpfc/lpfc_mbox.c
@@ -651,3 +651,19 @@ lpfc_mbox_get(struct lpfc_hba * phba)
 
 	return mbq;
 }
+
+int
+lpfc_mbox_tmo_val(struct lpfc_hba *phba, int cmd)
+{
+	switch (cmd) {
+	case MBX_WRITE_NV:	/* 0x03 */
+	case MBX_UPDATE_CFG:	/* 0x1B */
+	case MBX_DOWN_LOAD:	/* 0x1C */
+	case MBX_DEL_LD_ENTRY:	/* 0x1D */
+	case MBX_LOAD_AREA:	/* 0x81 */
+	case MBX_FLASH_WR_ULA:  /* 0x98 */
+	case MBX_LOAD_EXP_ROM:	/* 0x9C */
+		return LPFC_MBOX_TMO_FLASH_CMD;
+	}
+	return LPFC_MBOX_TMO;
+}
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index bd0b0e293d6..20449a8dd53 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -179,7 +179,7 @@ lpfc_els_abort(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
 
 	/* Abort outstanding I/O on NPort <nlp_DID> */
 	lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
-			"%d:0201 Abort outstanding I/O on NPort x%x "
+			"%d:0205 Abort outstanding I/O on NPort x%x "
 			"Data: x%x x%x x%x\n",
 			phba->brd_no, ndlp->nlp_DID, ndlp->nlp_flag,
 			ndlp->nlp_state, ndlp->nlp_rpi);
@@ -393,6 +393,20 @@ lpfc_rcv_plogi(struct lpfc_hba * phba,
 	mbox->context2  = ndlp;
 	ndlp->nlp_flag |= (NLP_ACC_REGLOGIN | NLP_RCV_PLOGI);
 
+	/*
+	 * If there is an outstanding PLOGI issued, abort it before
+	 * sending ACC rsp for received PLOGI. If pending plogi
+	 * is not canceled here, the plogi will be rejected by
+	 * remote port and will be retried. On a configuration with
+	 * single discovery thread, this will cause a huge delay in
+	 * discovery. Also this will cause multiple state machines
+	 * running in parallel for this node.
+	 */
+	if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE) {
+		/* software abort outstanding PLOGI */
+		lpfc_els_abort(phba, ndlp, 1);
+	}
+
 	lpfc_els_rsp_acc(phba, ELS_CMD_PLOGI, cmdiocb, ndlp, mbox, 0);
 	return 1;
 
@@ -1601,7 +1615,13 @@ lpfc_rcv_padisc_npr_node(struct lpfc_hba * phba,
 
 	lpfc_rcv_padisc(phba, ndlp, cmdiocb);
 
-	if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
+	/*
+	 * Do not start discovery if discovery is about to start
+	 * or discovery in progress for this node. Starting discovery
+	 * here will affect the counting of discovery threads.
+	 */
+	if ((!(ndlp->nlp_flag & NLP_DELAY_TMO)) &&
+		(ndlp->nlp_flag & NLP_NPR_2B_DISC)){
 		if (ndlp->nlp_flag & NLP_NPR_ADISC) {
 			ndlp->nlp_prev_state = NLP_STE_NPR_NODE;
 			ndlp->nlp_state = NLP_STE_ADISC_ISSUE;
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index a760a44173d..a8816a8738f 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -21,6 +21,7 @@
 
 #include <linux/pci.h>
 #include <linux/interrupt.h>
+#include <linux/delay.h>
 
 #include <scsi/scsi.h>
 #include <scsi/scsi_device.h>
@@ -841,6 +842,21 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
 	return 0;
 }
 
+static void
+lpfc_block_error_handler(struct scsi_cmnd *cmnd)
+{
+	struct Scsi_Host *shost = cmnd->device->host;
+	struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
+
+	spin_lock_irq(shost->host_lock);
+	while (rport->port_state == FC_PORTSTATE_BLOCKED) {
+		spin_unlock_irq(shost->host_lock);
+		msleep(1000);
+		spin_lock_irq(shost->host_lock);
+	}
+	spin_unlock_irq(shost->host_lock);
+	return;
+}
 
 static int
 lpfc_abort_handler(struct scsi_cmnd *cmnd)
@@ -855,6 +871,7 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd)
 	unsigned int loop_count = 0;
 	int ret = SUCCESS;
 
+	lpfc_block_error_handler(cmnd);
 	spin_lock_irq(shost->host_lock);
 
 	lpfc_cmd = (struct lpfc_scsi_buf *)cmnd->host_scribble;
@@ -957,6 +974,7 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
 	int ret = FAILED;
 	int cnt, loopcnt;
 
+	lpfc_block_error_handler(cmnd);
 	spin_lock_irq(shost->host_lock);
 	/*
 	 * If target is not in a MAPPED state, delay the reset until
@@ -1073,6 +1091,7 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
 	int cnt, loopcnt;
 	struct lpfc_scsi_buf * lpfc_cmd;
 
+	lpfc_block_error_handler(cmnd);
 	spin_lock_irq(shost->host_lock);
 
 	lpfc_cmd = lpfc_get_scsi_buf(phba);
@@ -1104,7 +1123,7 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
 					  ndlp->rport->dd_data);
 		if (ret != SUCCESS) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
-				"%d:0713 Bus Reset on target %d failed\n",
+				"%d:0700 Bus Reset on target %d failed\n",
 				phba->brd_no, i);
 			err_count++;
 		}
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 350a625fa22..70f4d5a1348 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -320,7 +320,8 @@ lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_iocbq * iocbq)
 			kfree(old_arr);
 			return iotag;
 		}
-	}
+	} else
+		spin_unlock_irq(phba->host->host_lock);
 
 	lpfc_printf_log(phba, KERN_ERR,LOG_SLI,
 			"%d:0318 Failed to allocate IOTAG.last IOTAG is %d\n",
@@ -969,9 +970,11 @@ void lpfc_sli_poll_fcp_ring(struct lpfc_hba * phba)
 			 * resources need to be recovered.
 			 */
 			if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
-				printk(KERN_INFO "%s: IOCB cmd 0x%x processed."
-				       " Skipping completion\n", __FUNCTION__,
-				       irsp->ulpCommand);
+				lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+						"%d:0314 IOCB cmd 0x%x"
+						" processed. Skipping"
+						" completion", phba->brd_no,
+						irsp->ulpCommand);
 				break;
 			}
 
@@ -1104,7 +1107,7 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba,
 		if (unlikely(irsp->ulpStatus)) {
 			/* Rsp ring <ringno> error: IOCB */
 			lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
-				"%d:0326 Rsp Ring %d error: IOCB Data: "
+				"%d:0336 Rsp Ring %d error: IOCB Data: "
 				"x%x x%x x%x x%x x%x x%x x%x x%x\n",
 				phba->brd_no, pring->ringno,
 				irsp->un.ulpWord[0], irsp->un.ulpWord[1],
@@ -1122,9 +1125,11 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba,
 			 * resources need to be recovered.
 			 */
 			if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
-				printk(KERN_INFO "%s: IOCB cmd 0x%x processed. "
-				       "Skipping completion\n", __FUNCTION__,
-				       irsp->ulpCommand);
+				lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+						"%d:0333 IOCB cmd 0x%x"
+						" processed. Skipping"
+						" completion\n", phba->brd_no,
+						irsp->ulpCommand);
 				break;
 			}
 
@@ -1155,7 +1160,7 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba,
 			} else {
 				/* Unknown IOCB command */
 				lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
-					"%d:0321 Unknown IOCB command "
+					"%d:0334 Unknown IOCB command "
 					"Data: x%x, x%x x%x x%x x%x\n",
 					phba->brd_no, type, irsp->ulpCommand,
 					irsp->ulpStatus, irsp->ulpIoTag,
@@ -1238,7 +1243,7 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba,
 		lpfc_printf_log(phba,
 				KERN_ERR,
 				LOG_SLI,
-				"%d:0312 Ring %d handler: portRspPut %d "
+				"%d:0303 Ring %d handler: portRspPut %d "
 				"is bigger then rsp ring %d\n",
 				phba->brd_no,
 				pring->ringno, portRspPut, portRspMax);
@@ -1383,7 +1388,7 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba,
 					lpfc_printf_log(phba,
 						KERN_ERR,
 						LOG_SLI,
-						"%d:0321 Unknown IOCB command "
+						"%d:0335 Unknown IOCB command "
 						"Data: x%x x%x x%x x%x\n",
 						phba->brd_no,
 						irsp->ulpCommand,
@@ -1399,11 +1404,11 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba,
 								 next_iocb,
 								 &saveq->list,
 								 list) {
+						list_del(&rspiocbp->list);
 						lpfc_sli_release_iocbq(phba,
 								     rspiocbp);
 					}
 				}
-
 				lpfc_sli_release_iocbq(phba, saveq);
 			}
 		}
@@ -1711,15 +1716,13 @@ lpfc_sli_brdreset(struct lpfc_hba * phba)
 	phba->fc_myDID = 0;
 	phba->fc_prevDID = 0;
 
-	psli->sli_flag = 0;
-
 	/* Turn off parity checking and serr during the physical reset */
 	pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
 	pci_write_config_word(phba->pcidev, PCI_COMMAND,
 			      (cfg_value &
 			       ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
 
-	psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
+	psli->sli_flag &= ~(LPFC_SLI2_ACTIVE | LPFC_PROCESS_LA);
 	/* Now toggle INITFF bit in the Host Control Register */
 	writel(HC_INITFF, phba->HCregaddr);
 	mdelay(1);
@@ -1760,7 +1763,7 @@ lpfc_sli_brdrestart(struct lpfc_hba * phba)
 
 	/* Restart HBA */
 	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
-			"%d:0328 Restart HBA Data: x%x x%x\n", phba->brd_no,
+			"%d:0337 Restart HBA Data: x%x x%x\n", phba->brd_no,
 			phba->hba_state, psli->sli_flag);
 
 	word0 = 0;
@@ -1792,6 +1795,9 @@ lpfc_sli_brdrestart(struct lpfc_hba * phba)
 
 	spin_unlock_irq(phba->host->host_lock);
 
+	memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
+	psli->stats_start = get_seconds();
+
 	if (skip_post)
 		mdelay(100);
 	else
@@ -1902,6 +1908,9 @@ lpfc_sli_hba_setup(struct lpfc_hba * phba)
 	}
 
 	while (resetcount < 2 && !done) {
+		spin_lock_irq(phba->host->host_lock);
+		phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
+		spin_unlock_irq(phba->host->host_lock);
 		phba->hba_state = LPFC_STATE_UNKNOWN;
 		lpfc_sli_brdrestart(phba);
 		msleep(2500);
@@ -1909,6 +1918,9 @@ lpfc_sli_hba_setup(struct lpfc_hba * phba)
 		if (rc)
 			break;
 
+		spin_lock_irq(phba->host->host_lock);
+		phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+		spin_unlock_irq(phba->host->host_lock);
 		resetcount++;
 
 	/* Call pre CONFIG_PORT mailbox command initialization.  A value of 0
@@ -2194,7 +2206,8 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag)
 			return (MBX_NOT_FINISHED);
 		}
 		/* timeout active mbox command */
-		mod_timer(&psli->mbox_tmo, jiffies + HZ * LPFC_MBOX_TMO);
+		mod_timer(&psli->mbox_tmo, (jiffies +
+			       (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand))));
 	}
 
 	/* Mailbox cmd <cmd> issue */
@@ -2254,7 +2267,6 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag)
 		break;
 
 	case MBX_POLL:
-		i = 0;
 		psli->mbox_active = NULL;
 		if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
 			/* First read mbox status word */
@@ -2268,11 +2280,14 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag)
 		/* Read the HBA Host Attention Register */
 		ha_copy = readl(phba->HAregaddr);
 
+		i = lpfc_mbox_tmo_val(phba, mb->mbxCommand);
+		i *= 1000; /* Convert to ms */
+
 		/* Wait for command to complete */
 		while (((word0 & OWN_CHIP) == OWN_CHIP) ||
 		       (!(ha_copy & HA_MBATT) &&
 			(phba->hba_state > LPFC_WARM_START))) {
-			if (i++ >= 100) {
+			if (i-- <= 0) {
 				psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
 				spin_unlock_irqrestore(phba->host->host_lock,
 						       drvr_flag);
@@ -2290,7 +2305,7 @@ lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag)
 
 			/* Can be in interrupt context, do not sleep */
 			/* (or might be called with interrupts disabled) */
-			mdelay(i);
+			mdelay(1);
 
 			spin_lock_irqsave(phba->host->host_lock, drvr_flag);
 
@@ -3005,7 +3020,7 @@ lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba,
 
 		if (timeleft == 0) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
-					"%d:0329 IOCB wait timeout error - no "
+					"%d:0338 IOCB wait timeout error - no "
 					"wake response Data x%x\n",
 					phba->brd_no, timeout);
 			retval = IOCB_TIMEDOUT;
diff --git a/drivers/scsi/lpfc/lpfc_sli.h b/drivers/scsi/lpfc/lpfc_sli.h
index d8ef0d2894d..e26de680935 100644
--- a/drivers/scsi/lpfc/lpfc_sli.h
+++ b/drivers/scsi/lpfc/lpfc_sli.h
@@ -172,6 +172,18 @@ struct lpfc_sli_stat {
 	uint32_t mbox_busy;	 /* Mailbox cmd busy */
 };
 
+/* Structure to store link status values when port stats are reset */
+struct lpfc_lnk_stat {
+	uint32_t link_failure_count;
+	uint32_t loss_of_sync_count;
+	uint32_t loss_of_signal_count;
+	uint32_t prim_seq_protocol_err_count;
+	uint32_t invalid_tx_word_count;
+	uint32_t invalid_crc_count;
+	uint32_t error_frames;
+	uint32_t link_events;
+};
+
 /* Structure used to hold SLI information */
 struct lpfc_sli {
 	uint32_t num_rings;
@@ -201,6 +213,8 @@ struct lpfc_sli {
 	struct lpfc_iocbq ** iocbq_lookup; /* array to lookup IOCB by IOTAG */
 	size_t iocbq_lookup_len;           /* current lengs of the array */
 	uint16_t  last_iotag;              /* last allocated IOTAG */
+	unsigned long  stats_start;        /* in seconds */
+	struct lpfc_lnk_stat lnk_stat_offsets;
 };
 
 /* Given a pointer to the start of the ring, and the slot number of
@@ -211,3 +225,9 @@ struct lpfc_sli {
 
 #define LPFC_MBOX_TMO           30	/* Sec tmo for outstanding mbox
 					   command */
+#define LPFC_MBOX_TMO_FLASH_CMD 300     /* Sec tmo for outstanding FLASH write
+					 * or erase cmds. This is especially
+					 * long because of the potential of
+					 * multiple flash erases that can be
+					 * spawned.
+					 */
diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h
index 10e89c6ae82..c7091ea29f3 100644
--- a/drivers/scsi/lpfc/lpfc_version.h
+++ b/drivers/scsi/lpfc/lpfc_version.h
@@ -18,7 +18,7 @@
  * included with this package.                                     *
  *******************************************************************/
 
-#define LPFC_DRIVER_VERSION "8.1.7"
+#define LPFC_DRIVER_VERSION "8.1.9"
 
 #define LPFC_DRIVER_NAME "lpfc"
 
diff --git a/drivers/scsi/megaraid/mega_common.h b/drivers/scsi/megaraid/mega_common.h
index 4675343228a..8cd0bd1d0f7 100644
--- a/drivers/scsi/megaraid/mega_common.h
+++ b/drivers/scsi/megaraid/mega_common.h
@@ -37,6 +37,12 @@
 #define LSI_MAX_CHANNELS		16
 #define LSI_MAX_LOGICAL_DRIVES_64LD	(64+1)
 
+#define HBA_SIGNATURE_64_BIT		0x299
+#define PCI_CONF_AMISIG64		0xa4
+
+#define MEGA_SCSI_INQ_EVPD		1
+#define MEGA_INVALID_FIELD_IN_CDB	0x24
+
 
 /**
  * scb_t - scsi command control block
diff --git a/drivers/scsi/megaraid/megaraid_ioctl.h b/drivers/scsi/megaraid/megaraid_ioctl.h
index bdaee144a1c..b8aa34202ec 100644
--- a/drivers/scsi/megaraid/megaraid_ioctl.h
+++ b/drivers/scsi/megaraid/megaraid_ioctl.h
@@ -132,6 +132,10 @@ typedef struct uioc {
 /* Driver Data: */
 	void __user *		user_data;
 	uint32_t		user_data_len;
+
+	/* 64bit alignment */
+	uint32_t                pad_for_64bit_align;
+
 	mraid_passthru_t	__user *user_pthru;
 
 	mraid_passthru_t	*pthru32;
diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c
index 92715130ac0..cd982c877da 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.c
+++ b/drivers/scsi/megaraid/megaraid_mbox.c
@@ -10,7 +10,7 @@
  *	   2 of the License, or (at your option) any later version.
  *
  * FILE		: megaraid_mbox.c
- * Version	: v2.20.4.8 (Apr 11 2006)
+ * Version	: v2.20.4.9 (Jul 16 2006)
  *
  * Authors:
  * 	Atul Mukker		<Atul.Mukker@lsil.com>
@@ -720,6 +720,7 @@ megaraid_init_mbox(adapter_t *adapter)
 	struct pci_dev		*pdev;
 	mraid_device_t		*raid_dev;
 	int			i;
+	uint32_t		magic64;
 
 
 	adapter->ito	= MBOX_TIMEOUT;
@@ -863,12 +864,33 @@ megaraid_init_mbox(adapter_t *adapter)
 
 	// Set the DMA mask to 64-bit. All supported controllers as capable of
 	// DMA in this range
-	if (pci_set_dma_mask(adapter->pdev, DMA_64BIT_MASK) != 0) {
-
-		con_log(CL_ANN, (KERN_WARNING
-			"megaraid: could not set DMA mask for 64-bit.\n"));
+	pci_read_config_dword(adapter->pdev, PCI_CONF_AMISIG64, &magic64);
+
+	if (((magic64 == HBA_SIGNATURE_64_BIT) &&
+		((adapter->pdev->subsystem_device !=
+		PCI_SUBSYS_ID_MEGARAID_SATA_150_6) ||
+		(adapter->pdev->subsystem_device !=
+		PCI_SUBSYS_ID_MEGARAID_SATA_150_4))) ||
+		(adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC &&
+		adapter->pdev->device == PCI_DEVICE_ID_VERDE) ||
+		(adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC &&
+		adapter->pdev->device == PCI_DEVICE_ID_DOBSON) ||
+		(adapter->pdev->vendor == PCI_VENDOR_ID_LSI_LOGIC &&
+		adapter->pdev->device == PCI_DEVICE_ID_LINDSAY) ||
+		(adapter->pdev->vendor == PCI_VENDOR_ID_DELL &&
+		adapter->pdev->device == PCI_DEVICE_ID_PERC4_DI_EVERGLADES) ||
+		(adapter->pdev->vendor == PCI_VENDOR_ID_DELL &&
+		adapter->pdev->device == PCI_DEVICE_ID_PERC4E_DI_KOBUK)) {
+		if (pci_set_dma_mask(adapter->pdev, DMA_64BIT_MASK)) {
+			con_log(CL_ANN, (KERN_WARNING
+				"megaraid: DMA mask for 64-bit failed\n"));
 
-		goto out_free_sysfs_res;
+			if (pci_set_dma_mask (adapter->pdev, DMA_32BIT_MASK)) {
+				con_log(CL_ANN, (KERN_WARNING
+					"megaraid: 32-bit DMA mask failed\n"));
+				goto out_free_sysfs_res;
+			}
+		}
 	}
 
 	// setup tasklet for DPC
@@ -1622,6 +1644,14 @@ megaraid_mbox_build_cmd(adapter_t *adapter, struct scsi_cmnd *scp, int *busy)
 				rdev->last_disp |= (1L << SCP2CHANNEL(scp));
 			}
 
+			if (scp->cmnd[1] & MEGA_SCSI_INQ_EVPD) {
+				scp->sense_buffer[0] = 0x70;
+				scp->sense_buffer[2] = ILLEGAL_REQUEST;
+				scp->sense_buffer[12] = MEGA_INVALID_FIELD_IN_CDB;
+				scp->result = CHECK_CONDITION << 1;
+				return NULL;
+			}
+
 			/* Fall through */
 
 		case READ_CAPACITY:
diff --git a/drivers/scsi/megaraid/megaraid_mbox.h b/drivers/scsi/megaraid/megaraid_mbox.h
index 868fb0ec93e..2b5a3285f79 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.h
+++ b/drivers/scsi/megaraid/megaraid_mbox.h
@@ -21,8 +21,8 @@
 #include "megaraid_ioctl.h"
 
 
-#define MEGARAID_VERSION	"2.20.4.8"
-#define MEGARAID_EXT_VERSION	"(Release Date: Mon Apr 11 12:27:22 EST 2006)"
+#define MEGARAID_VERSION	"2.20.4.9"
+#define MEGARAID_EXT_VERSION	"(Release Date: Sun Jul 16 12:27:22 EST 2006)"
 
 
 /*
diff --git a/drivers/scsi/megaraid/megaraid_mm.c b/drivers/scsi/megaraid/megaraid_mm.c
index e8f534fb336..d85b9a8f1b8 100644
--- a/drivers/scsi/megaraid/megaraid_mm.c
+++ b/drivers/scsi/megaraid/megaraid_mm.c
@@ -10,7 +10,7 @@
  *	   2 of the License, or (at your option) any later version.
  *
  * FILE		: megaraid_mm.c
- * Version	: v2.20.2.6 (Mar 7 2005)
+ * Version	: v2.20.2.7 (Jul 16 2006)
  *
  * Common management module
  */
diff --git a/drivers/scsi/megaraid/megaraid_mm.h b/drivers/scsi/megaraid/megaraid_mm.h
index 3d9e67d6849..c8762b2b8ed 100644
--- a/drivers/scsi/megaraid/megaraid_mm.h
+++ b/drivers/scsi/megaraid/megaraid_mm.h
@@ -27,9 +27,9 @@
 #include "megaraid_ioctl.h"
 
 
-#define LSI_COMMON_MOD_VERSION	"2.20.2.6"
+#define LSI_COMMON_MOD_VERSION	"2.20.2.7"
 #define LSI_COMMON_MOD_EXT_VERSION	\
-		"(Release Date: Mon Mar 7 00:01:03 EST 2005)"
+		"(Release Date: Sun Jul 16 00:01:03 EST 2006)"
 
 
 #define LSI_DBGLVL			dbglevel
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 139ea0e27fd..0930260aec2 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -487,6 +487,7 @@ typedef struct {
 #define MBA_IP_RCV_BUFFER_EMPTY 0x8026	/* IP receive buffer queue empty. */
 #define MBA_IP_HDR_DATA_SPLIT	0x8027	/* IP header/data splitting feature */
 					/* used. */
+#define MBA_TRACE_NOTIFICATION	0x8028	/* Trace/Diagnostic notification. */
 #define MBA_POINT_TO_POINT	0x8030	/* Point to point mode. */
 #define MBA_CMPLT_1_16BIT	0x8031	/* Completion 1 16bit IOSB. */
 #define MBA_CMPLT_2_16BIT	0x8032	/* Completion 2 16bit IOSB. */
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 9758dba9554..859649160ca 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -3063,6 +3063,7 @@ qla2x00_update_fcports(scsi_qla_host_t *ha)
 int
 qla2x00_abort_isp(scsi_qla_host_t *ha)
 {
+	int rval;
 	unsigned long flags = 0;
 	uint16_t       cnt;
 	srb_t          *sp;
@@ -3119,6 +3120,16 @@ qla2x00_abort_isp(scsi_qla_host_t *ha)
 
 			ha->isp_abort_cnt = 0;
 			clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
+
+			if (ha->eft) {
+				rval = qla2x00_trace_control(ha, TC_ENABLE,
+				    ha->eft_dma, EFT_NUM_BUFFERS);
+				if (rval) {
+					qla_printk(KERN_WARNING, ha,
+					    "Unable to reinitialize EFT "
+					    "(%d).\n", rval);
+				}
+			}
 		} else {	/* failed the ISP abort */
 			ha->flags.online = 1;
 			if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) {
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index 2b60a27eff0..c5b3c610a32 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -471,6 +471,7 @@ __qla2x00_marker(scsi_qla_host_t *ha, uint16_t loop_id, uint16_t lun,
 			mrk24->nport_handle = cpu_to_le16(loop_id);
 			mrk24->lun[1] = LSB(lun);
 			mrk24->lun[2] = MSB(lun);
+			host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun));
 		} else {
 			SET_TARGET_ID(ha, mrk->target, loop_id);
 			mrk->lun = cpu_to_le16(lun);
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 795bf15b1b8..de0613135f7 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -587,6 +587,11 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb)
 		DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x "
 		    "%04x.\n", ha->host_no, mb[1], mb[2], mb[3]));
 		break;
+
+	case MBA_TRACE_NOTIFICATION:
+		DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n",
+		ha->host_no, mb[1], mb[2]));
+		break;
 	}
 }
 
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index ec7ebb6037e..65cbe2f5eea 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -744,7 +744,6 @@ qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 {
 	scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
-	srb_t *sp;
 	int ret;
 	unsigned int id, lun;
 	unsigned long serial;
@@ -755,8 +754,7 @@ qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
 	lun = cmd->device->lun;
 	serial = cmd->serial_number;
 
-	sp = (srb_t *) CMD_SP(cmd);
-	if (!sp || !fcport)
+	if (!fcport)
 		return ret;
 
 	qla_printk(KERN_INFO, ha,
@@ -875,7 +873,6 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 {
 	scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
-	srb_t *sp;
 	int ret;
 	unsigned int id, lun;
 	unsigned long serial;
@@ -886,8 +883,7 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 	lun = cmd->device->lun;
 	serial = cmd->serial_number;
 
-	sp = (srb_t *) CMD_SP(cmd);
-	if (!sp || !fcport)
+	if (!fcport)
 		return ret;
 
 	qla_printk(KERN_INFO, ha,
@@ -936,7 +932,6 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
 {
 	scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
 	fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
-	srb_t *sp;
 	int ret;
 	unsigned int id, lun;
 	unsigned long serial;
@@ -947,8 +942,7 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
 	lun = cmd->device->lun;
 	serial = cmd->serial_number;
 
-	sp = (srb_t *) CMD_SP(cmd);
-	if (!sp || !fcport)
+	if (!fcport)
 		return ret;
 
 	qla_printk(KERN_INFO, ha,
@@ -2244,9 +2238,6 @@ qla2x00_do_dpc(void *data)
 
 			next_loopid = 0;
 			list_for_each_entry(fcport, &ha->fcports, list) {
-				if (fcport->port_type != FCT_TARGET)
-					continue;
-
 				/*
 				 * If the port is not ONLINE then try to login
 				 * to it if we haven't run out of retries.
diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h
index d2d68344065..971259032ef 100644
--- a/drivers/scsi/qla2xxx/qla_version.h
+++ b/drivers/scsi/qla2xxx/qla_version.h
@@ -7,9 +7,9 @@
 /*
  * Driver version
  */
-#define QLA2XXX_VERSION      "8.01.05-k3"
+#define QLA2XXX_VERSION      "8.01.07-k1"
 
 #define QLA_DRIVER_MAJOR_VER	8
 #define QLA_DRIVER_MINOR_VER	1
-#define QLA_DRIVER_PATCH_VER	5
+#define QLA_DRIVER_PATCH_VER	7
 #define QLA_DRIVER_BETA_VER	0
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 6a5b731bd5b..a8ed5a22009 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -460,7 +460,8 @@ static void scsi_eh_done(struct scsi_cmnd *scmd)
  * Return value:
  *    SUCCESS or FAILED or NEEDS_RETRY
  **/
-static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, int timeout, int copy_sense)
+static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, unsigned char *cmnd,
+			     int cmnd_size, int timeout, int copy_sense)
 {
 	struct scsi_device *sdev = scmd->device;
 	struct Scsi_Host *shost = sdev->host;
@@ -490,6 +491,9 @@ static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, int timeout, int copy_sense
 	old_cmd_len = scmd->cmd_len;
 	old_use_sg = scmd->use_sg;
 
+	memset(scmd->cmnd, 0, sizeof(scmd->cmnd));
+	memcpy(scmd->cmnd, cmnd, cmnd_size);
+
 	if (copy_sense) {
 		int gfp_mask = GFP_ATOMIC;
 
@@ -610,8 +614,7 @@ static int scsi_request_sense(struct scsi_cmnd *scmd)
 	static unsigned char generic_sense[6] =
 		{REQUEST_SENSE, 0, 0, 0, 252, 0};
 
-	memcpy(scmd->cmnd, generic_sense, sizeof(generic_sense));
-	return scsi_send_eh_cmnd(scmd, SENSE_TIMEOUT, 1);
+	return scsi_send_eh_cmnd(scmd, generic_sense, 6, SENSE_TIMEOUT, 1);
 }
 
 /**
@@ -736,10 +739,7 @@ static int scsi_eh_tur(struct scsi_cmnd *scmd)
 	int retry_cnt = 1, rtn;
 
 retry_tur:
-	memcpy(scmd->cmnd, tur_command, sizeof(tur_command));
-
-
-	rtn = scsi_send_eh_cmnd(scmd, SENSE_TIMEOUT, 0);
+	rtn = scsi_send_eh_cmnd(scmd, tur_command, 6, SENSE_TIMEOUT, 0);
 
 	SCSI_LOG_ERROR_RECOVERY(3, printk("%s: scmd %p rtn %x\n",
 		__FUNCTION__, scmd, rtn));
@@ -839,8 +839,8 @@ static int scsi_eh_try_stu(struct scsi_cmnd *scmd)
 	if (scmd->device->allow_restart) {
 		int rtn;
 
-		memcpy(scmd->cmnd, stu_command, sizeof(stu_command));
-		rtn = scsi_send_eh_cmnd(scmd, START_UNIT_TIMEOUT, 0);
+		rtn = scsi_send_eh_cmnd(scmd, stu_command, 6,
+					START_UNIT_TIMEOUT, 0);
 		if (rtn == SUCCESS)
 			return 0;
 	}
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 7b9e8fa1a4e..2ecd1418857 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -34,6 +34,7 @@
 #define ISCSI_SESSION_ATTRS 11
 #define ISCSI_CONN_ATTRS 11
 #define ISCSI_HOST_ATTRS 0
+#define ISCSI_TRANSPORT_VERSION "1.1-646"
 
 struct iscsi_internal {
 	int daemon_pid;
@@ -634,13 +635,13 @@ mempool_zone_get_skb(struct mempool_zone *zone)
 }
 
 static int
-iscsi_broadcast_skb(struct mempool_zone *zone, struct sk_buff *skb)
+iscsi_broadcast_skb(struct mempool_zone *zone, struct sk_buff *skb, gfp_t gfp)
 {
 	unsigned long flags;
 	int rc;
 
 	skb_get(skb);
-	rc = netlink_broadcast(nls, skb, 0, 1, GFP_KERNEL);
+	rc = netlink_broadcast(nls, skb, 0, 1, gfp);
 	if (rc < 0) {
 		mempool_free(skb, zone->pool);
 		printk(KERN_ERR "iscsi: can not broadcast skb (%d)\n", rc);
@@ -749,7 +750,7 @@ void iscsi_conn_error(struct iscsi_cls_conn *conn, enum iscsi_err error)
 	ev->r.connerror.cid = conn->cid;
 	ev->r.connerror.sid = iscsi_conn_get_sid(conn);
 
-	iscsi_broadcast_skb(conn->z_error, skb);
+	iscsi_broadcast_skb(conn->z_error, skb, GFP_ATOMIC);
 
 	dev_printk(KERN_INFO, &conn->dev, "iscsi: detected conn error (%d)\n",
 		   error);
@@ -895,7 +896,7 @@ int iscsi_if_destroy_session_done(struct iscsi_cls_conn *conn)
 	 * this will occur if the daemon is not up, so we just warn
 	 * the user and when the daemon is restarted it will handle it
 	 */
-	rc = iscsi_broadcast_skb(conn->z_pdu, skb);
+	rc = iscsi_broadcast_skb(conn->z_pdu, skb, GFP_KERNEL);
 	if (rc < 0)
 		dev_printk(KERN_ERR, &conn->dev, "Cannot notify userspace of "
 			  "session destruction event. Check iscsi daemon\n");
@@ -958,7 +959,7 @@ int iscsi_if_create_session_done(struct iscsi_cls_conn *conn)
 	 * this will occur if the daemon is not up, so we just warn
 	 * the user and when the daemon is restarted it will handle it
 	 */
-	rc = iscsi_broadcast_skb(conn->z_pdu, skb);
+	rc = iscsi_broadcast_skb(conn->z_pdu, skb, GFP_KERNEL);
 	if (rc < 0)
 		dev_printk(KERN_ERR, &conn->dev, "Cannot notify userspace of "
 			  "session creation event. Check iscsi daemon\n");
@@ -1613,6 +1614,9 @@ static __init int iscsi_transport_init(void)
 {
 	int err;
 
+	printk(KERN_INFO "Loading iSCSI transport class v%s.",
+		ISCSI_TRANSPORT_VERSION);
+
 	err = class_register(&iscsi_transport_class);
 	if (err)
 		return err;
@@ -1678,3 +1682,4 @@ MODULE_AUTHOR("Mike Christie <michaelc@cs.wisc.edu>, "
 	      "Alex Aizman <itn780@yahoo.com>");
 MODULE_DESCRIPTION("iSCSI Transport Interface");
 MODULE_LICENSE("GPL");
+MODULE_VERSION(ISCSI_TRANSPORT_VERSION);
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 65eef33846b..34f9343ed0a 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -18,8 +18,8 @@
  *
  */
 
-static int sg_version_num = 30533;	/* 2 digits for each component */
-#define SG_VERSION_STR "3.5.33"
+static int sg_version_num = 30534;	/* 2 digits for each component */
+#define SG_VERSION_STR "3.5.34"
 
 /*
  *  D. P. Gilbert (dgilbert@interlog.com, dougg@triode.net.au), notes:
@@ -60,7 +60,7 @@ static int sg_version_num = 30533;	/* 2 digits for each component */
 
 #ifdef CONFIG_SCSI_PROC_FS
 #include <linux/proc_fs.h>
-static char *sg_version_date = "20050908";
+static char *sg_version_date = "20060818";
 
 static int sg_proc_init(void);
 static void sg_proc_cleanup(void);
@@ -1164,7 +1164,7 @@ sg_vma_nopage(struct vm_area_struct *vma, unsigned long addr, int *type)
 		len = vma->vm_end - sa;
 		len = (len < sg->length) ? len : sg->length;
 		if (offset < len) {
-			page = sg->page;
+			page = virt_to_page(page_address(sg->page) + offset);
 			get_page(page);	/* increment page count */
 			break;
 		}
diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c
index 8c505076c0e..739d3ef46a4 100644
--- a/drivers/scsi/sym53c8xx_2/sym_glue.c
+++ b/drivers/scsi/sym53c8xx_2/sym_glue.c
@@ -2084,7 +2084,7 @@ static struct pci_device_id sym2_id_table[] __devinitdata = {
 	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C860,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
 	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1510,
-	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
+	  PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_SCSI<<8,  0xffff00, 0UL },
 	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C896,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
 	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C895,
author	Greg Kroah-Hartman <gregkh@suse.de>	2006-08-26 13:04:23 -0700
committer	Greg Kroah-Hartman <gregkh@suse.de>	2006-08-26 13:04:23 -0700
commit	f834c755423332a6ff4397fae754029a6a7a8249 (patch)
tree	004266b9612a69484a5dc0dc3d6db0d1e5ab60d5 /drivers
parent	62250b3bb596ffbae17c4b3d865fecd6329ce8b3 (diff)
parent	0db99e3359234be181590463184b9959059a9ea9 (diff)