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

44 files changed, 2068 insertions, 1316 deletions

diff --git a/drivers/message/fusion/Makefile b/drivers/message/fusion/Makefile
index 8a2e2657f4c..33ace373241 100644
--- a/drivers/message/fusion/Makefile
+++ b/drivers/message/fusion/Makefile
@@ -29,6 +29,8 @@
 #  For mptctl:
 #CFLAGS_mptctl.o += -DMPT_DEBUG_IOCTL
 #
+#  For mptfc:
+#CFLAGS_mptfc.o += -DMPT_DEBUG_FC
 
 #=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-} LSI_LOGIC
 
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index d890b2b8a93..9a2c7605d49 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -81,6 +81,10 @@ MODULE_LICENSE("GPL");
 /*
  *  cmd line parameters
  */
+static int mpt_msi_enable;
+module_param(mpt_msi_enable, int, 0);
+MODULE_PARM_DESC(mpt_msi_enable, " MSI Support Enable (default=0)");
+
 #ifdef MFCNT
 static int mfcounter = 0;
 #define PRINT_MF_COUNT 20000
@@ -174,7 +178,7 @@ static void	mpt_get_fw_exp_ver(char *buf, MPT_ADAPTER *ioc);
 static int	ProcessEventNotification(MPT_ADAPTER *ioc, EventNotificationReply_t *evReply, int *evHandlers);
 static void	mpt_sp_ioc_info(MPT_ADAPTER *ioc, u32 ioc_status, MPT_FRAME_HDR *mf);
 static void	mpt_fc_log_info(MPT_ADAPTER *ioc, u32 log_info);
-static void	mpt_sp_log_info(MPT_ADAPTER *ioc, u32 log_info);
+static void	mpt_spi_log_info(MPT_ADAPTER *ioc, u32 log_info);
 static void	mpt_sas_log_info(MPT_ADAPTER *ioc, u32 log_info);
 
 /* module entry point */
@@ -313,7 +317,7 @@ mpt_reply(MPT_ADAPTER *ioc, u32 pa)
 		if (ioc->bus_type == FC)
 			mpt_fc_log_info(ioc, log_info);
 		else if (ioc->bus_type == SPI)
-			mpt_sp_log_info(ioc, log_info);
+			mpt_spi_log_info(ioc, log_info);
 		else if (ioc->bus_type == SAS)
 			mpt_sas_log_info(ioc, log_info);
 	}
@@ -1444,6 +1448,9 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	ioc->pci_irq = -1;
 	if (pdev->irq) {
+		if (mpt_msi_enable && !pci_enable_msi(pdev))
+			printk(MYIOC_s_INFO_FMT "PCI-MSI enabled\n", ioc->name);
+
 		r = request_irq(pdev->irq, mpt_interrupt, SA_SHIRQ, ioc->name, ioc);
 
 		if (r < 0) {
@@ -1483,6 +1490,10 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
 
 		list_del(&ioc->list);
 		free_irq(ioc->pci_irq, ioc);
+		if (mpt_msi_enable)
+			pci_disable_msi(pdev);
+		if (ioc->alt_ioc)
+			ioc->alt_ioc->alt_ioc = NULL;
 		iounmap(mem);
 		kfree(ioc);
 		pci_set_drvdata(pdev, NULL);
@@ -2136,6 +2147,8 @@ mpt_adapter_dispose(MPT_ADAPTER *ioc)
 
 	if (ioc->pci_irq != -1) {
 		free_irq(ioc->pci_irq, ioc);
+		if (mpt_msi_enable)
+			pci_disable_msi(ioc->pcidev);
 		ioc->pci_irq = -1;
 	}
 
@@ -2157,6 +2170,10 @@ mpt_adapter_dispose(MPT_ADAPTER *ioc)
 	sz_last = ioc->alloc_total;
 	dprintk((KERN_INFO MYNAM ": %s: free'd %d of %d bytes\n",
 			ioc->name, sz_first-sz_last+(int)sizeof(*ioc), sz_first));
+
+	if (ioc->alt_ioc)
+		ioc->alt_ioc->alt_ioc = NULL;
+
 	kfree(ioc);
 }
 
@@ -2770,13 +2787,16 @@ SendPortEnable(MPT_ADAPTER *ioc, int portnum, int sleepFlag)
 
 	/* RAID FW may take a long time to enable
 	 */
-	if ( (ioc->facts.ProductID & MPI_FW_HEADER_PID_PROD_MASK)
-			> MPI_FW_HEADER_PID_PROD_TARGET_SCSI ) {
-		rc = mpt_handshake_req_reply_wait(ioc, req_sz, (u32*)&port_enable,
-				reply_sz, (u16*)&reply_buf, 300 /*seconds*/, sleepFlag);
+	if (((ioc->facts.ProductID & MPI_FW_HEADER_PID_PROD_MASK)
+	    > MPI_FW_HEADER_PID_PROD_TARGET_SCSI) ||
+	    (ioc->bus_type == SAS)) {
+		rc = mpt_handshake_req_reply_wait(ioc, req_sz,
+		(u32*)&port_enable, reply_sz, (u16*)&reply_buf,
+		300 /*seconds*/, sleepFlag);
 	} else {
-		rc = mpt_handshake_req_reply_wait(ioc, req_sz, (u32*)&port_enable,
-				reply_sz, (u16*)&reply_buf, 30 /*seconds*/, sleepFlag);
+		rc = mpt_handshake_req_reply_wait(ioc, req_sz,
+		(u32*)&port_enable, reply_sz, (u16*)&reply_buf,
+		30 /*seconds*/, sleepFlag);
 	}
 	return rc;
 }
@@ -4387,6 +4407,138 @@ mptbase_sas_persist_operation(MPT_ADAPTER *ioc, u8 persist_opcode)
 }
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
+
+static void
+mptbase_raid_process_event_data(MPT_ADAPTER *ioc,
+    MpiEventDataRaid_t * pRaidEventData)
+{
+	int 	volume;
+	int 	reason;
+	int 	disk;
+	int 	status;
+	int 	flags;
+	int 	state;
+
+	volume	= pRaidEventData->VolumeID;
+	reason	= pRaidEventData->ReasonCode;
+	disk	= pRaidEventData->PhysDiskNum;
+	status	= le32_to_cpu(pRaidEventData->SettingsStatus);
+	flags	= (status >> 0) & 0xff;
+	state	= (status >> 8) & 0xff;
+
+	if (reason == MPI_EVENT_RAID_RC_DOMAIN_VAL_NEEDED) {
+		return;
+	}
+
+	if ((reason >= MPI_EVENT_RAID_RC_PHYSDISK_CREATED &&
+	     reason <= MPI_EVENT_RAID_RC_PHYSDISK_STATUS_CHANGED) ||
+	    (reason == MPI_EVENT_RAID_RC_SMART_DATA)) {
+		printk(MYIOC_s_INFO_FMT "RAID STATUS CHANGE for PhysDisk %d\n",
+			ioc->name, disk);
+	} else {
+		printk(MYIOC_s_INFO_FMT "RAID STATUS CHANGE for VolumeID %d\n",
+			ioc->name, volume);
+	}
+
+	switch(reason) {
+	case MPI_EVENT_RAID_RC_VOLUME_CREATED:
+		printk(MYIOC_s_INFO_FMT "  volume has been created\n",
+			ioc->name);
+		break;
+
+	case MPI_EVENT_RAID_RC_VOLUME_DELETED:
+
+		printk(MYIOC_s_INFO_FMT "  volume has been deleted\n",
+			ioc->name);
+		break;
+
+	case MPI_EVENT_RAID_RC_VOLUME_SETTINGS_CHANGED:
+		printk(MYIOC_s_INFO_FMT "  volume settings have been changed\n",
+			ioc->name);
+		break;
+
+	case MPI_EVENT_RAID_RC_VOLUME_STATUS_CHANGED:
+		printk(MYIOC_s_INFO_FMT "  volume is now %s%s%s%s\n",
+			ioc->name,
+			state == MPI_RAIDVOL0_STATUS_STATE_OPTIMAL
+			 ? "optimal"
+			 : state == MPI_RAIDVOL0_STATUS_STATE_DEGRADED
+			  ? "degraded"
+			  : state == MPI_RAIDVOL0_STATUS_STATE_FAILED
+			   ? "failed"
+			   : "state unknown",
+			flags & MPI_RAIDVOL0_STATUS_FLAG_ENABLED
+			 ? ", enabled" : "",
+			flags & MPI_RAIDVOL0_STATUS_FLAG_QUIESCED
+			 ? ", quiesced" : "",
+			flags & MPI_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS
+			 ? ", resync in progress" : "" );
+		break;
+
+	case MPI_EVENT_RAID_RC_VOLUME_PHYSDISK_CHANGED:
+		printk(MYIOC_s_INFO_FMT "  volume membership of PhysDisk %d has changed\n",
+			ioc->name, disk);
+		break;
+
+	case MPI_EVENT_RAID_RC_PHYSDISK_CREATED:
+		printk(MYIOC_s_INFO_FMT "  PhysDisk has been created\n",
+			ioc->name);
+		break;
+
+	case MPI_EVENT_RAID_RC_PHYSDISK_DELETED:
+		printk(MYIOC_s_INFO_FMT "  PhysDisk has been deleted\n",
+			ioc->name);
+		break;
+
+	case MPI_EVENT_RAID_RC_PHYSDISK_SETTINGS_CHANGED:
+		printk(MYIOC_s_INFO_FMT "  PhysDisk settings have been changed\n",
+			ioc->name);
+		break;
+
+	case MPI_EVENT_RAID_RC_PHYSDISK_STATUS_CHANGED:
+		printk(MYIOC_s_INFO_FMT "  PhysDisk is now %s%s%s\n",
+			ioc->name,
+			state == MPI_PHYSDISK0_STATUS_ONLINE
+			 ? "online"
+			 : state == MPI_PHYSDISK0_STATUS_MISSING
+			  ? "missing"
+			  : state == MPI_PHYSDISK0_STATUS_NOT_COMPATIBLE
+			   ? "not compatible"
+			   : state == MPI_PHYSDISK0_STATUS_FAILED
+			    ? "failed"
+			    : state == MPI_PHYSDISK0_STATUS_INITIALIZING
+			     ? "initializing"
+			     : state == MPI_PHYSDISK0_STATUS_OFFLINE_REQUESTED
+			      ? "offline requested"
+			      : state == MPI_PHYSDISK0_STATUS_FAILED_REQUESTED
+			       ? "failed requested"
+			       : state == MPI_PHYSDISK0_STATUS_OTHER_OFFLINE
+			        ? "offline"
+			        : "state unknown",
+			flags & MPI_PHYSDISK0_STATUS_FLAG_OUT_OF_SYNC
+			 ? ", out of sync" : "",
+			flags & MPI_PHYSDISK0_STATUS_FLAG_QUIESCED
+			 ? ", quiesced" : "" );
+		break;
+
+	case MPI_EVENT_RAID_RC_DOMAIN_VAL_NEEDED:
+		printk(MYIOC_s_INFO_FMT "  Domain Validation needed for PhysDisk %d\n",
+			ioc->name, disk);
+		break;
+
+	case MPI_EVENT_RAID_RC_SMART_DATA:
+		printk(MYIOC_s_INFO_FMT "  SMART data received, ASC/ASCQ = %02xh/%02xh\n",
+			ioc->name, pRaidEventData->ASC, pRaidEventData->ASCQ);
+		break;
+
+	case MPI_EVENT_RAID_RC_REPLACE_ACTION_STARTED:
+		printk(MYIOC_s_INFO_FMT "  replacement of PhysDisk %d has started\n",
+			ioc->name, disk);
+		break;
+	}
+}
+
+/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 /*
  *	GetIoUnitPage2 - Retrieve BIOS version and boot order information.
  *	@ioc: Pointer to MPT_ADAPTER structure
@@ -4598,6 +4750,14 @@ mpt_GetScsiPortSettings(MPT_ADAPTER *ioc, int portnum)
 				SCSIPortPage2_t *pPP2 = (SCSIPortPage2_t  *) pbuf;
 				MpiDeviceInfo_t	*pdevice = NULL;
 
+				/*
+				 * Save "Set to Avoid SCSI Bus Resets" flag
+				 */
+				ioc->spi_data.bus_reset =
+				    (le32_to_cpu(pPP2->PortFlags) &
+			        MPI_SCSIPORTPAGE2_PORT_FLAGS_AVOID_SCSI_RESET) ?
+				    0 : 1 ;
+
 				/* Save the Port Page 2 data
 				 * (reformat into a 32bit quantity)
 				 */
@@ -5967,6 +6127,10 @@ ProcessEventNotification(MPT_ADAPTER *ioc, EventNotificationReply_t *pEventReply
 			}
 		}
 		break;
+	case MPI_EVENT_INTEGRATED_RAID:
+		mptbase_raid_process_event_data(ioc,
+		    (MpiEventDataRaid_t *)pEventReply->Data);
+		break;
 	default:
 		break;
 	}
@@ -6046,7 +6210,7 @@ mpt_fc_log_info(MPT_ADAPTER *ioc, u32 log_info)
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 /*
- *	mpt_sp_log_info - Log information returned from SCSI Parallel IOC.
+ *	mpt_spi_log_info - Log information returned from SCSI Parallel IOC.
  *	@ioc: Pointer to MPT_ADAPTER structure
  *	@mr: Pointer to MPT reply frame
  *	@log_info: U32 LogInfo word from the IOC
@@ -6054,7 +6218,7 @@ mpt_fc_log_info(MPT_ADAPTER *ioc, u32 log_info)
  *	Refer to lsi/sp_log.h.
  */
 static void
-mpt_sp_log_info(MPT_ADAPTER *ioc, u32 log_info)
+mpt_spi_log_info(MPT_ADAPTER *ioc, u32 log_info)
 {
 	u32 info = log_info & 0x00FF0000;
 	char *desc = "unknown";
diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h
index 47053ac6506..ea2649ecad1 100644
--- a/drivers/message/fusion/mptbase.h
+++ b/drivers/message/fusion/mptbase.h
@@ -76,8 +76,8 @@
 #define COPYRIGHT	"Copyright (c) 1999-2005 " MODULEAUTHOR
 #endif
 
-#define MPT_LINUX_VERSION_COMMON	"3.03.06"
-#define MPT_LINUX_PACKAGE_NAME		"@(#)mptlinux-3.03.06"
+#define MPT_LINUX_VERSION_COMMON	"3.03.07"
+#define MPT_LINUX_PACKAGE_NAME		"@(#)mptlinux-3.03.07"
 #define WHAT_MAGIC_STRING		"@" "(" "#" ")"
 
 #define show_mptmod_ver(s,ver)  \
@@ -123,7 +123,7 @@
 #define  MPT_MAX_FRAME_SIZE		128
 #define  MPT_DEFAULT_FRAME_SIZE		128
 
-#define  MPT_REPLY_FRAME_SIZE		0x40  /* Must be a multiple of 8 */
+#define  MPT_REPLY_FRAME_SIZE		0x50  /* Must be a multiple of 8 */
 
 #define  MPT_SG_REQ_128_SCALE		1
 #define  MPT_SG_REQ_96_SCALE		2
@@ -510,9 +510,10 @@ struct mptfc_rport_info
 {
 	struct list_head list;
 	struct fc_rport *rport;
-	VirtDevice	*vdev;
+	struct scsi_target *starget;
 	FCDevicePage0_t pg0;
 	u8		flags;
+	u8		remap_needed;
 };
 
 /*
@@ -631,6 +632,7 @@ typedef struct _MPT_ADAPTER
 	struct mutex		 sas_topology_mutex;
 	MPT_SAS_MGMT		 sas_mgmt;
 	int			 num_ports;
+	struct work_struct	 mptscsih_persistTask;
 
 	struct list_head	 fc_rports;
 	spinlock_t		 fc_rport_lock; /* list and ri flags */
@@ -803,6 +805,12 @@ typedef struct _mpt_sge {
 #define dreplyprintk(x)
 #endif
 
+#ifdef DMPT_DEBUG_FC
+#define dfcprintk(x) printk x
+#else
+#define dfcprintk(x)
+#endif
+
 #ifdef MPT_DEBUG_TM
 #define dtmprintk(x) printk x
 #define DBG_DUMP_TM_REQUEST_FRAME(mfp) \
diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c
index b102c7666d0..c3a3499bce2 100644
--- a/drivers/message/fusion/mptfc.c
+++ b/drivers/message/fusion/mptfc.c
@@ -93,10 +93,11 @@ static int	mptfcDoneCtx = -1;
 static int	mptfcTaskCtx = -1;
 static int	mptfcInternalCtx = -1; /* Used only for internal commands */
 
-int mptfc_slave_alloc(struct scsi_device *device);
+static int mptfc_target_alloc(struct scsi_target *starget);
+static int mptfc_slave_alloc(struct scsi_device *sdev);
 static int mptfc_qcmd(struct scsi_cmnd *SCpnt,
-    void (*done)(struct scsi_cmnd *));
-
+		      void (*done)(struct scsi_cmnd *));
+static void mptfc_target_destroy(struct scsi_target *starget);
 static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout);
 static void __devexit mptfc_remove(struct pci_dev *pdev);
 
@@ -107,10 +108,10 @@ static struct scsi_host_template mptfc_driver_template = {
 	.name				= "MPT FC Host",
 	.info				= mptscsih_info,
 	.queuecommand			= mptfc_qcmd,
-	.target_alloc			= mptscsih_target_alloc,
+	.target_alloc			= mptfc_target_alloc,
 	.slave_alloc			= mptfc_slave_alloc,
 	.slave_configure		= mptscsih_slave_configure,
-	.target_destroy			= mptscsih_target_destroy,
+	.target_destroy			= mptfc_target_destroy,
 	.slave_destroy			= mptscsih_slave_destroy,
 	.change_queue_depth 		= mptscsih_change_queue_depth,
 	.eh_abort_handler		= mptscsih_abort,
@@ -348,14 +349,33 @@ mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid)
 }
 
 static void
+mptfc_remap_sdev(struct scsi_device *sdev, void *arg)
+{
+	VirtDevice		*vdev;
+	VirtTarget		*vtarget;
+	struct scsi_target	*starget;
+
+	starget = scsi_target(sdev);
+	if (starget->hostdata == arg) {
+		vtarget = arg;
+		vdev = sdev->hostdata;
+		if (vdev) {
+			vdev->bus_id = vtarget->bus_id;
+			vdev->target_id = vtarget->target_id;
+		}
+	}
+}
+
+static void
 mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0)
 {
 	struct fc_rport_identifiers rport_ids;
 	struct fc_rport		*rport;
 	struct mptfc_rport_info	*ri;
-	int			match = 0;
-	u64			port_name;
+	int			new_ri = 1;
+	u64			pn;
 	unsigned long		flags;
+	VirtTarget		*vtarget;
 
 	if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0)
 		return;
@@ -363,14 +383,14 @@ mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0)
 	/* scan list looking for a match */
 	spin_lock_irqsave(&ioc->fc_rport_lock, flags);
 	list_for_each_entry(ri, &ioc->fc_rports, list) {
-		port_name = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
-		if (port_name == rport_ids.port_name) {	/* match */
+		pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low;
+		if (pn == rport_ids.port_name) {	/* match */
 			list_move_tail(&ri->list, &ioc->fc_rports);
-			match = 1;
+			new_ri = 0;
 			break;
 		}
 	}
-	if (!match) {	/* allocate one */
+	if (new_ri) {	/* allocate one */
 		spin_unlock_irqrestore(&ioc->fc_rport_lock, flags);
 		ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL);
 		if (!ri)
@@ -382,40 +402,43 @@ mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0)
 	ri->pg0 = *pg0;	/* add/update pg0 data */
 	ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING;
 
+	/* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */
 	if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) {
 		ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED;
 		spin_unlock_irqrestore(&ioc->fc_rport_lock, flags);
-		rport = fc_remote_port_add(ioc->sh,channel, &rport_ids);
+		rport = fc_remote_port_add(ioc->sh, channel, &rport_ids);
 		spin_lock_irqsave(&ioc->fc_rport_lock, flags);
 		if (rport) {
-			if (*((struct mptfc_rport_info **)rport->dd_data) != ri) {
-				ri->flags &= ~MPT_RPORT_INFO_FLAGS_MAPPED_VDEV;
-				ri->vdev = NULL;
-				ri->rport = rport;
-				*((struct mptfc_rport_info **)rport->dd_data) = ri;
-			}
-			rport->dev_loss_tmo = mptfc_dev_loss_tmo;
+			ri->rport = rport;
+			if (new_ri) /* may have been reset by user */
+				rport->dev_loss_tmo = mptfc_dev_loss_tmo;
+			*((struct mptfc_rport_info **)rport->dd_data) = ri;
 			/*
 			 * if already mapped, remap here.  If not mapped,
-			 * slave_alloc will allocate vdev and map
+			 * target_alloc will allocate vtarget and map,
+			 * slave_alloc will fill in vdev from vtarget.
 			 */
-			if (ri->flags & MPT_RPORT_INFO_FLAGS_MAPPED_VDEV) {
-				ri->vdev->target_id = ri->pg0.CurrentTargetID;
-				ri->vdev->bus_id = ri->pg0.CurrentBus;
-				ri->vdev->vtarget->target_id = ri->vdev->target_id;
-				ri->vdev->vtarget->bus_id = ri->vdev->bus_id;
+			if (ri->starget) {
+				vtarget = ri->starget->hostdata;
+				if (vtarget) {
+					vtarget->target_id = pg0->CurrentTargetID;
+					vtarget->bus_id = pg0->CurrentBus;
+					starget_for_each_device(ri->starget,
+						vtarget,mptfc_remap_sdev);
+				}
+				ri->remap_needed = 0;
 			}
-			#ifdef MPT_DEBUG
-			printk ("mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, "
+			dfcprintk ((MYIOC_s_INFO_FMT
+				"mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, "
 				"rport tid %d, tmo %d\n",
-					ioc->sh->host_no,
+					ioc->name,
+					oc->sh->host_no,
 					pg0->PortIdentifier,
 					pg0->WWNN,
 					pg0->WWPN,
 					pg0->CurrentTargetID,
 					ri->rport->scsi_target_id,
-					ri->rport->dev_loss_tmo);
-			#endif
+					ri->rport->dev_loss_tmo));
 		} else {
 			list_del(&ri->list);
 			kfree(ri);
@@ -427,6 +450,65 @@ mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0)
 }
 
 /*
+ *	OS entry point to allow for host driver to free allocated memory
+ *	Called if no device present or device being unloaded
+ */
+static void
+mptfc_target_destroy(struct scsi_target *starget)
+{
+	struct fc_rport		*rport;
+	struct mptfc_rport_info *ri;
+
+	rport = starget_to_rport(starget);
+	if (rport) {
+		ri = *((struct mptfc_rport_info **)rport->dd_data);
+		if (ri)	/* better be! */
+			ri->starget = NULL;
+	}
+	if (starget->hostdata)
+		kfree(starget->hostdata);
+	starget->hostdata = NULL;
+}
+
+/*
+ *	OS entry point to allow host driver to alloc memory
+ *	for each scsi target. Called once per device the bus scan.
+ *	Return non-zero if allocation fails.
+ */
+static int
+mptfc_target_alloc(struct scsi_target *starget)
+{
+	VirtTarget		*vtarget;
+	struct fc_rport		*rport;
+	struct mptfc_rport_info *ri;
+	int			rc;
+
+	vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL);
+	if (!vtarget)
+		return -ENOMEM;
+	starget->hostdata = vtarget;
+
+	rc = -ENODEV;
+	rport = starget_to_rport(starget);
+	if (rport) {
+		ri = *((struct mptfc_rport_info **)rport->dd_data);
+		if (ri) {	/* better be! */
+			vtarget->target_id = ri->pg0.CurrentTargetID;
+			vtarget->bus_id = ri->pg0.CurrentBus;
+			ri->starget = starget;
+			ri->remap_needed = 0;
+			rc = 0;
+		}
+	}
+	if (rc != 0) {
+		kfree(vtarget);
+		starget->hostdata = NULL;
+	}
+
+	return rc;
+}
+
+/*
  *	OS entry point to allow host driver to alloc memory
  *	for each scsi device. Called once per device the bus scan.
  *	Return non-zero if allocation fails.
@@ -440,7 +522,6 @@ mptfc_slave_alloc(struct scsi_device *sdev)
 	VirtDevice		*vdev;
 	struct scsi_target	*starget;
 	struct fc_rport		*rport;
-	struct mptfc_rport_info *ri;
 	unsigned long		flags;
 
 
@@ -451,55 +532,44 @@ mptfc_slave_alloc(struct scsi_device *sdev)
 
 	hd = (MPT_SCSI_HOST *)sdev->host->hostdata;
 
-	vdev = kmalloc(sizeof(VirtDevice), GFP_KERNEL);
+	vdev = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
 	if (!vdev) {
 		printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
 				hd->ioc->name, sizeof(VirtDevice));
 		return -ENOMEM;
 	}
-	memset(vdev, 0, sizeof(VirtDevice));
 
 	spin_lock_irqsave(&hd->ioc->fc_rport_lock,flags);
 
-	if (!(ri = *((struct mptfc_rport_info **)rport->dd_data))) {
-		spin_unlock_irqrestore(&hd->ioc->fc_rport_lock,flags);
-		kfree(vdev);
-		return -ENODEV;
-	}
-
 	sdev->hostdata = vdev;
 	starget = scsi_target(sdev);
 	vtarget = starget->hostdata;
+
 	if (vtarget->num_luns == 0) {
+		vtarget->ioc_id = hd->ioc->id;
 		vtarget->tflags = MPT_TARGET_FLAGS_Q_YES |
 		    		  MPT_TARGET_FLAGS_VALID_INQUIRY;
 		hd->Targets[sdev->id] = vtarget;
 	}
 
-	vtarget->target_id = vdev->target_id;
-	vtarget->bus_id = vdev->bus_id;
-
 	vdev->vtarget = vtarget;
 	vdev->ioc_id = hd->ioc->id;
 	vdev->lun = sdev->lun;
-	vdev->target_id = ri->pg0.CurrentTargetID;
-	vdev->bus_id = ri->pg0.CurrentBus;
-
-	ri->flags |= MPT_RPORT_INFO_FLAGS_MAPPED_VDEV;
-	ri->vdev = vdev;
+	vdev->target_id = vtarget->target_id;
+	vdev->bus_id = vtarget->bus_id;
 
 	spin_unlock_irqrestore(&hd->ioc->fc_rport_lock,flags);
 
 	vtarget->num_luns++;
 
-#ifdef MPT_DEBUG
-	printk ("mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, "
+	dfcprintk ((MYIOC_s_INFO_FMT
+		"mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, "
 	        "CurrentTargetID %d, %x %llx %llx\n",
-			sdev->host->host_no,
-			vtarget->num_luns,
-			sdev->id, ri->pg0.CurrentTargetID,
-			ri->pg0.PortIdentifier, ri->pg0.WWPN, ri->pg0.WWNN);
-#endif
+		ioc->name,
+		sdev->host->host_no,
+		vtarget->num_luns,
+		sdev->id, ri->pg0.CurrentTargetID,
+		ri->pg0.PortIdentifier, ri->pg0.WWPN, ri->pg0.WWNN));
 
 	return 0;
 }
@@ -507,6 +577,7 @@ mptfc_slave_alloc(struct scsi_device *sdev)
 static int
 mptfc_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
 {
+	struct mptfc_rport_info	*ri;
 	struct fc_rport	*rport = starget_to_rport(scsi_target(SCpnt->device));
 	int		err;
 
@@ -516,6 +587,10 @@ mptfc_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
 		done(SCpnt);
 		return 0;
 	}
+	ri = *((struct mptfc_rport_info **)rport->dd_data);
+	if (unlikely(ri->remap_needed))
+		return SCSI_MLQUEUE_HOST_BUSY;
+
 	return mptscsih_qcmd(SCpnt,done);
 }
 
@@ -591,16 +666,20 @@ mptfc_rescan_devices(void *arg)
 
 				ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED|
 					       MPT_RPORT_INFO_FLAGS_MISSING);
+				ri->remap_needed = 1;
 				fc_remote_port_delete(ri->rport);
 				/*
 				 * remote port not really deleted 'cause
 				 * binding is by WWPN and driver only
-				 * registers FCP_TARGETs
+				 * registers FCP_TARGETs but cannot trust
+				 * data structures.
 				 */
-				#ifdef MPT_DEBUG
-				printk ("mptfc_rescan.%d: %llx deleted\n",
-					ioc->sh->host_no, ri->pg0.WWPN);
-				#endif
+				ri->rport = NULL;
+				dfcprintk ((MYIOC_s_INFO_FMT
+					"mptfc_rescan.%d: %llx deleted\n",
+					ioc->name,
+					ioc->sh->host_no,
+					ri->pg0.WWPN));
 			}
 		}
 		spin_unlock_irqrestore(&ioc->fc_rport_lock,flags);
@@ -872,9 +951,8 @@ mptfc_init(void)
 	}
 
 	error = pci_register_driver(&mptfc_driver);
-	if (error) {
+	if (error)
 		fc_release_transport(mptfc_transport_template);
-	}
 
 	return error;
 }
@@ -885,7 +963,8 @@ mptfc_init(void)
  *	@pdev: Pointer to pci_dev structure
  *
  */
-static void __devexit mptfc_remove(struct pci_dev *pdev)
+static void __devexit
+mptfc_remove(struct pci_dev *pdev)
 {
 	MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
 	struct mptfc_rport_info *p, *n;
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 5a06d8d8694..2512d0e6155 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -89,6 +89,8 @@ static int	mptsasMgmtCtx = -1;
 enum mptsas_hotplug_action {
 	MPTSAS_ADD_DEVICE,
 	MPTSAS_DEL_DEVICE,
+	MPTSAS_ADD_RAID,
+	MPTSAS_DEL_RAID,
 };
 
 struct mptsas_hotplug_event {
@@ -114,6 +116,7 @@ struct mptsas_hotplug_event {