diff -rupN old/drivers/scsi/megaraid/megaraid_sas.c new/drivers/scsi/megaraid/megaraid_sas.c
--- old/drivers/scsi/megaraid/megaraid_sas.c	2010-11-16 06:29:31.000000000 -0500
+++ new/drivers/scsi/megaraid/megaraid_sas.c	2010-11-17 13:08:03.000000000 -0500
@@ -121,6 +121,12 @@ static void
 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
 		     u8 alt_status);
 
+static u32
+megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs);
+
+static int megasas_adp_reset_gen2(struct megasas_instance *instance,
+				struct megasas_register_set __iomem *reg_set);
+
 /**
  * megasas_get_cmd -	Get a command from the free pool
  * @instance:		Adapter soft state
@@ -497,6 +503,8 @@ static int
 megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs)
 {
 	u32 status;
+	u32 mfiStatus = 0;
+
 	/*
 	 * Check if it is our interrupt
 	 */
@@ -507,6 +515,15 @@ megasas_clear_intr_skinny(struct megasas
 	}
 
 	/*
+	 * Check if it is our interrupt
+	 */
+	if ((megasas_read_fw_status_reg_gen2( regs) & MFI_STATE_MASK ) ==
+						MFI_STATE_FAULT ) {
+		mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;
+	} else
+		mfiStatus |=  MFI_INTR_FLAG_REPLY_MESSAGE;
+
+	/*
 	 * Clear the interrupt by writing back the same value
 	 */
 	writel(status, &regs->outbound_intr_status);
@@ -516,7 +533,7 @@ megasas_clear_intr_skinny(struct megasas
 	*/
 	readl(&regs->outbound_intr_status);
 
-	return 1;
+	return mfiStatus;
 }
 
 /**
@@ -540,17 +557,6 @@ megasas_fire_cmd_skinny(struct megasas_i
 }
 
 /**
- * megasas_adp_reset_skinny -	For controller reset
- * @regs:				MFI register set
- */
-static int
-megasas_adp_reset_skinny(struct megasas_instance *instance,
-			struct megasas_register_set __iomem *regs)
-{
-	return 0;
-}
-
-/**
  * megasas_check_reset_skinny -	For controller reset check
  * @regs:				MFI register set
  */
@@ -568,7 +574,7 @@ static struct megasas_instance_template
 	.disable_intr = megasas_disable_intr_skinny,
 	.clear_intr = megasas_clear_intr_skinny,
 	.read_fw_status_reg = megasas_read_fw_status_reg_skinny,
-	.adp_reset = megasas_adp_reset_skinny,
+	.adp_reset = megasas_adp_reset_gen2,
 	.check_reset = megasas_check_reset_skinny,
 };
 
@@ -678,20 +684,26 @@ megasas_adp_reset_gen2(struct megasas_in
 {
 	u32			retry = 0 ;
 	u32			HostDiag;
+	u32			*seq_offset = &reg_set->seq_offset;
+	u32			*hostdiag_offset = &reg_set->host_diag;
 
-	writel(0, &reg_set->seq_offset);
-	writel(4, &reg_set->seq_offset);
-	writel(0xb, &reg_set->seq_offset);
-	writel(2, &reg_set->seq_offset);
-	writel(7, &reg_set->seq_offset);
-	writel(0xd, &reg_set->seq_offset);
-	msleep(1000);
+	if (instance->instancet ==  &megasas_instance_template_skinny ) {
+		seq_offset = &reg_set->fusion_seq_offset;
+		hostdiag_offset = &reg_set->fusion_host_diag;
+	}
+	writel(0, seq_offset);
+	writel(4, seq_offset);
+	writel(0xb, seq_offset);
+	writel(2, seq_offset);
+	writel(7, seq_offset);
+	writel(0xd, seq_offset);
 
-	HostDiag = (u32)readl(&reg_set->host_diag);
+	msleep(1000);
+	HostDiag = (u32)readl(hostdiag_offset);
 
 	while ( !( HostDiag & DIAG_WRITE_ENABLE) ) {
 		msleep(100);
-		HostDiag = (u32)readl(&reg_set->host_diag);
+		HostDiag = (u32)readl(hostdiag_offset);
 		printk(KERN_NOTICE "RESETGEN2: retry=%x, hostdiag=%x\n",
 					retry, HostDiag);
 
@@ -701,15 +713,15 @@ megasas_adp_reset_gen2(struct megasas_in
 	}
 
 	printk(KERN_NOTICE "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag);
-
-	writel((HostDiag | DIAG_RESET_ADAPTER), &reg_set->host_diag);
+	writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset);
 
 	ssleep(10);
 
-	HostDiag = (u32)readl(&reg_set->host_diag);
+	HostDiag = (u32)readl(hostdiag_offset);
+
 	while ( ( HostDiag & DIAG_RESET_ADAPTER) ) {
 		msleep(100);
-		HostDiag = (u32)readl(&reg_set->host_diag);
+		HostDiag = (u32)readl(hostdiag_offset);
 		printk(KERN_NOTICE "RESET_GEN2: retry=%x, hostdiag=%x\n",
 				retry, HostDiag);
 
@@ -1502,7 +1514,7 @@ static void megaraid_sas_kill_hba(struct
 	if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
 		(instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
 		writel(MFI_STOP_ADP,
-			&instance->reg_set->reserved_0[0]);
+			&instance->reg_set->reserved_0);
 	} else {
 		writel(MFI_STOP_ADP,
 			&instance->reg_set->inbound_doorbell);
@@ -1754,7 +1766,7 @@ static int megasas_wait_for_outstanding(
 			(instance->pdev->device ==
 			PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
 			writel(MFI_STOP_ADP,
-				&instance->reg_set->reserved_0[0]);
+				&instance->reg_set->reserved_0);
 		} else {
 			writel(MFI_STOP_ADP,
 				&instance->reg_set->inbound_doorbell);
@@ -2506,7 +2518,7 @@ megasas_transition_to_ready(struct megas
 
 				writel(
 				  MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
-				  &instance->reg_set->reserved_0[0]);
+				&instance->reg_set->reserved_0);
 			} else {
 				writel(
 				    MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,
@@ -2523,7 +2535,7 @@ megasas_transition_to_ready(struct megas
 			(instance->pdev->device ==
 				PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
 				writel(MFI_INIT_HOTPLUG,
-				&instance->reg_set->reserved_0[0]);
+				&instance->reg_set->reserved_0);
 			} else
 				writel(MFI_INIT_HOTPLUG,
 					&instance->reg_set->inbound_doorbell);
@@ -2542,7 +2554,7 @@ megasas_transition_to_ready(struct megas
 				(instance->pdev->device ==
 				PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {
 				writel(MFI_RESET_FLAGS,
-					&instance->reg_set->reserved_0[0]);
+					&instance->reg_set->reserved_0);
 			} else
 				writel(MFI_RESET_FLAGS,
 					&instance->reg_set->inbound_doorbell);
diff -rupN old/drivers/scsi/megaraid/megaraid_sas.h new/drivers/scsi/megaraid/megaraid_sas.h
--- old/drivers/scsi/megaraid/megaraid_sas.h	2010-11-16 06:29:31.000000000 -0500
+++ new/drivers/scsi/megaraid/megaraid_sas.h	2010-11-14 16:23:04.000000000 -0500
@@ -771,7 +771,10 @@ struct megasas_ctrl_info {
 */
  
 struct megasas_register_set {
-	u32 	reserved_0[4];			/*0000h*/
+	u32 	reserved_0;			/*0000h*/
+	u32	fusion_seq_offset;		/*0004h*/
+	u32	fusion_host_diag;		/*0008h*/
+	u32	reserved_01;			/*000Ch*/
 
 	u32 	inbound_msg_0;			/*0010h*/
 	u32 	inbound_msg_1;			/*0014h*/