diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h
index 8d1aadb..11fc8f3 100644
--- a/drivers/message/fusion/mptbase.h
+++ b/drivers/message/fusion/mptbase.h
@@ -76,8 +76,8 @@
 #define COPYRIGHT	"Copyright (c) 1999-2008 " MODULEAUTHOR
 #endif
 
-#define MPT_LINUX_VERSION_COMMON	"3.04.08"
-#define MPT_LINUX_PACKAGE_NAME		"@(#)mptlinux-3.04.08"
+#define MPT_LINUX_VERSION_COMMON	"3.04.09"
+#define MPT_LINUX_PACKAGE_NAME		"@(#)mptlinux-3.04.09"
 #define WHAT_MAGIC_STRING		"@" "(" "#" ")"
 
 #define show_mptmod_ver(s,ver)  \
@@ -711,6 +711,7 @@
 	u16			 hba_port_num_phy;
 	struct list_head	 sas_device_info_list;
 	struct mutex		 sas_device_info_mutex;
+	u8			 old_sas_discovery_protocal;
 	u8			 sas_discovery_quiesce_io;
 	int			 sas_index; /* index refrencing */
 	MPT_MGMT		 sas_mgmt;
@@ -741,6 +742,7 @@
 	spinlock_t		 fault_reset_work_lock;
 
 	u8			sg_addr_size;
+	u8			in_rescan;
 	u8			SGE_size;
 
 } MPT_ADAPTER;
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 7f2f76f..6aa9126 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -119,6 +119,8 @@
 static void mptsas_expander_delete(MPT_ADAPTER *ioc,
 		struct mptsas_portinfo *port_info, u8 force);
 static void mptsas_send_expander_event(struct fw_event_work *fw_event);
+static void mptsas_not_responding_devices(MPT_ADAPTER *ioc);
+static void mptsas_scan_sas_topology(MPT_ADAPTER *ioc);
 
 static void mptsas_print_phy_data(MPT_ADAPTER *ioc,
 					MPI_SAS_IO_UNIT0_PHY_DATA *phy_data)
@@ -844,6 +846,24 @@
 	mptsas_add_fw_event(ioc, fw_event, msecs_to_jiffies(1));
 }
 
+static void
+mptsas_queue_rescan(MPT_ADAPTER *ioc)
+{
+	struct fw_event_work *fw_event;
+	int sz;
+
+	sz = offsetof(struct fw_event_work, event_data);
+	fw_event = kzalloc(sz, GFP_ATOMIC);
+	if (!fw_event) {
+		printk(MYIOC_s_WARN_FMT "%s: failed at (line=%d)\n",
+		    ioc->name, __func__, __LINE__);
+		return;
+	}
+	fw_event->event = -1;
+	fw_event->ioc = ioc;
+	mptsas_add_fw_event(ioc, fw_event, msecs_to_jiffies(1));
+}
+
 
 /**
  * mptsas_target_reset
@@ -1100,6 +1120,7 @@
 			complete(&ioc->sas_mgmt.done);
 		}
 		mptsas_cleanup_fw_event_q(ioc);
+		mptsas_queue_rescan(ioc);
 		mptsas_fw_event_on(ioc);
 		break;
 	default:
@@ -1406,6 +1427,23 @@
 		container_of(work, struct fw_event_work, work.work);
 	MPT_ADAPTER *ioc = fw_event->ioc;
 
+	/* special rescan topology handling */
+	if (fw_event->event == -1) {
+		if (ioc->in_rescan) {
+			devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
+				"%s: rescan ignored as it is in progress\n",
+				ioc->name, __func__));
+			return;
+		}
+		devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: rescan after "
+		    "reset\n", ioc->name, __func__));
+		ioc->in_rescan = 1;
+		mptsas_not_responding_devices(ioc);
+		mptsas_scan_sas_topology(ioc);
+		ioc->in_rescan = 0;
+		mptsas_free_fw_event(ioc, fw_event);
+		return;
+	}
 
 	/* events handling turned off during host reset */
 	if (ioc->fw_events_off) {
@@ -3153,8 +3191,15 @@
 	if (link_rate == MPI_SAS_IOUNIT0_RATE_1_5 ||
 	    link_rate == MPI_SAS_IOUNIT0_RATE_3_0) {
 
-		if (!port_info)
+		if (!port_info) {
+			if (ioc->old_sas_discovery_protocal) {
+				port_info = mptsas_expander_add(ioc,
+					le16_to_cpu(link_data->DevHandle));
+				if (port_info)
+					goto out;
+			}
 			goto out;
+		}
 
 		if (port_info == ioc->hba_port_info)
 			mptsas_probe_hba_phys(ioc);
@@ -3176,6 +3221,121 @@
 	mptsas_free_fw_event(ioc, fw_event);
 }
 
+static void
+mptsas_not_responding_devices(MPT_ADAPTER *ioc)
+{
+	struct mptsas_portinfo buffer, *port_info;
+	struct mptsas_device_info	*sas_info;
+	struct mptsas_devinfo sas_device;
+	u32	handle;
+	VirtTarget *vtarget = NULL;
+	struct mptsas_phyinfo *phy_info;
+	u8 found_expander;
+	int retval, retry_count;
+	unsigned long flags;
+
+	mpt_findImVolumes(ioc);
+
+	spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
+	if (ioc->ioc_reset_in_progress) {
+		dfailprintk(ioc, printk(MYIOC_s_DEBUG_FMT
+		   "%s: exiting due to a parallel reset \n", ioc->name,
+		    __func__));
+		spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
+		return;
+	}
+	spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
+
+	/* devices, logical volumes */
+	mutex_lock(&ioc->sas_device_info_mutex);
+ redo_device_scan:
+	list_for_each_entry(sas_info, &ioc->sas_device_info_list, list) {
+		sas_device.handle = 0;
+		retry_count = 0;
+retry_page:
+		retval = mptsas_sas_device_pg0(ioc, &sas_device,
+				(MPI_SAS_DEVICE_PGAD_FORM_BUS_TARGET_ID
+				<< MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
+				(sas_info->fw.channel << 8) +
+				sas_info->fw.id);
+
+		if (sas_device.handle)
+			continue;
+		if (retval == -EBUSY) {
+			spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
+			if (ioc->ioc_reset_in_progress) {
+				dfailprintk(ioc,
+				    printk(MYIOC_s_DEBUG_FMT
+				    "%s: exiting due to reset\n",
+				    ioc->name, __func__));
+				spin_unlock_irqrestore
+				    (&ioc->taskmgmt_lock, flags);
+				mutex_unlock(&ioc->sas_device_info_mutex);
+				return;
+			}
+			spin_unlock_irqrestore(&ioc->taskmgmt_lock,
+			flags);
+		}
+
+		if (retval && (retval != -ENODEV)) {
+			if (retry_count < 10) {
+				retry_count++;
+				goto retry_page;
+			} else {
+				devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
+				"%s: Config page retry exceeded retry "
+				"count deleting device 0x%llx\n",
+				ioc->name, __func__,
+				sas_info->sas_address));
+			}
+		}
+
+		/* delete device */
+		vtarget = mptsas_find_vtarget(ioc,
+				sas_info->fw.channel, sas_info->fw.id);
+		if (vtarget)
+			vtarget->deleted = 1;
+		phy_info = mptsas_find_phyinfo_by_sas_address(ioc,
+		    sas_info->sas_address);
+		if (phy_info) {
+			mptsas_del_end_device(ioc, phy_info);
+			goto redo_device_scan;
+		}
+	}
+	mutex_unlock(&ioc->sas_device_info_mutex);
+
+	/* expanders */
+	mutex_lock(&ioc->sas_topology_mutex);
+ redo_expander_scan:
+	list_for_each_entry(port_info, &ioc->sas_topology, list) {
+
+		if (port_info->phy_info &&
+		    (!(port_info->phy_info[0].identify.device_info &
+		    MPI_SAS_DEVICE_INFO_SMP_TARGET)))
+			continue;
+		found_expander = 0;
+		handle = 0xFFFF;
+		while (!mptsas_sas_expander_pg0(ioc, &buffer,
+		    (MPI_SAS_EXPAND_PGAD_FORM_GET_NEXT_HANDLE <<
+		     MPI_SAS_EXPAND_PGAD_FORM_SHIFT), handle) &&
+		    !found_expander) {
+
+			handle = buffer.phy_info[0].handle;
+			if (buffer.phy_info[0].identify.sas_address ==
+			    port_info->phy_info[0].identify.sas_address) {
+				found_expander = 1;
+			}
+			kfree(buffer.phy_info);
+		}
+
+		if (!found_expander) {
+			mptsas_expander_delete(ioc, port_info, 0);
+			goto redo_expander_scan;
+		}
+	}
+	mutex_lock(&ioc->sas_topology_mutex);
+}
+
 /**
  *	mptsas_probe_expanders - adding expanders
  *	@ioc: Pointer to MPT_ADAPTER structure
@@ -3895,6 +4055,8 @@
 		MpiEventDataSasExpanderStatusChange_t *expander_data =
 		    (MpiEventDataSasExpanderStatusChange_t *)reply->Data;
 
+		if (ioc->old_sas_discovery_protocal)
+			return 0;
 
 		if (expander_data->ReasonCode ==
 		    MPI_EVENT_SAS_EXP_RC_NOT_RESPONDING &&
@@ -3910,6 +4072,8 @@
 
 		discovery_status = le32_to_cpu(discovery_data->DiscoveryStatus);
 		ioc->sas_discovery_quiesce_io = discovery_status ? 1 : 0;
+		if (ioc->old_sas_discovery_protocal && !discovery_status)
+			mptsas_queue_rescan(ioc);
 		return 0;
 	}
 	case MPI_EVENT_INTEGRATED_RAID:
@@ -4117,6 +4281,9 @@
 		goto out_mptsas_probe;
 	}
 
+	/* older firmware doesn't support expander events */
+	if ((ioc->facts.HeaderVersion >> 8) < 0xE)
+		ioc->old_sas_discovery_protocal = 1;
 	mptsas_scan_sas_topology(ioc);
 	mptsas_fw_event_on(ioc);
 	return 0;