Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley: "This is mostly updates of the usual driver suspects: arcmsr, scsi_debug, mpt3sas, lpfc, cxlflash, qla2xxx, aacraid, megaraid_sas, hisi_sas. We also have a rework of the libsas hotplug handling to make it more robust, a slew of 32 bit time conversions and fixes, and a host of the usual minor updates and style changes. The biggest potential for regressions is the libsas hotplug changes, but so far they seem stable under testing" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (313 commits) scsi: qla2xxx: Fix logo flag for qlt_free_session_done() scsi: arcmsr: avoid do_gettimeofday scsi: core: Add VENDOR_SPECIFIC sense code definitions scsi: qedi: Drop cqe response during connection recovery scsi: fas216: fix sense buffer initialization scsi: ibmvfc: Remove unneeded semicolons scsi: hisi_sas: fix a bug in hisi_sas_dev_gone() scsi: hisi_sas: directly attached disk LED feature for v2 hw scsi: hisi_sas: devicetree: bindings: add LED feature for v2 hw scsi: megaraid_sas: NVMe passthrough command support scsi: megaraid: use ktime_get_real for firmware time scsi: fnic: use 64-bit timestamps scsi: qedf: Fix error return code in __qedf_probe() scsi: devinfo: fix format of the device list scsi: qla2xxx: Update driver version to 10.00.00.05-k scsi: qla2xxx: Add XCB counters to debugfs scsi: qla2xxx: Fix queue ID for async abort with Multiqueue scsi: qla2xxx: Fix warning for code intentation in __qla24xx_handle_gpdb_event() scsi: qla2xxx: Fix warning during port_name debug print scsi: qla2xxx: Fix warning in qla2x00_async_iocb_timeout() ...
author: Linus Torvalds <torvalds@linux-foundation.org> 2018-01-31 11:23:28 -0800
committer: Linus Torvalds <torvalds@linux-foundation.org> 2018-01-31 11:23:28 -0800
commit: 28bc6fb9596fe1e577d09fc17ee6e1bb051c6ba3 (patch)
tree: 6293b282a960720fc5008e3e5fa4d096d974b2f1 /drivers
parent: 0be600a5add76e8e8b9e1119f2a7426ff849aca8 (diff)
parent: a2390348c19d0819d525d375414a7cfdacb51a68 (diff)
download: blackbird-op-linux-28bc6fb9596fe1e577d09fc17ee6e1bb051c6ba3.tar.gz
blackbird-op-linux-28bc6fb9596fe1e577d09fc17ee6e1bb051c6ba3.zip
151 files changed, 8881 insertions, 4506 deletions
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index 7a93400eea2a..51eb1b027963 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -958,7 +958,7 @@ mpt_put_msg_frame(u8 cb_idx, MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf)
 {
 	u32 mf_dma_addr;
 	int req_offset;
-	u16	 req_idx;	/* Request index */
+	u16 req_idx;	/* Request index */
 
 	/* ensure values are reset properly! */
 	mf->u.frame.hwhdr.msgctxu.fld.cb_idx = cb_idx;		/* byte */
@@ -994,7 +994,7 @@ mpt_put_msg_frame_hi_pri(u8 cb_idx, MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf)
 {
 	u32 mf_dma_addr;
 	int req_offset;
-	u16	 req_idx;	/* Request index */
+	u16 req_idx;	/* Request index */
 
 	/* ensure values are reset properly! */
 	mf->u.frame.hwhdr.msgctxu.fld.cb_idx = cb_idx;
@@ -1128,11 +1128,12 @@ mpt_add_sge_64bit_1078(void *pAddr, u32 flagslength, dma_addr_t dma_addr)
 static void
 mpt_add_chain(void *pAddr, u8 next, u16 length, dma_addr_t dma_addr)
 {
-		SGEChain32_t *pChain = (SGEChain32_t *) pAddr;
-		pChain->Length = cpu_to_le16(length);
-		pChain->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT;
-		pChain->NextChainOffset = next;
-		pChain->Address = cpu_to_le32(dma_addr);
+	SGEChain32_t *pChain = (SGEChain32_t *) pAddr;
+
+	pChain->Length = cpu_to_le16(length);
+	pChain->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT;
+	pChain->NextChainOffset = next;
+	pChain->Address = cpu_to_le32(dma_addr);
 }
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
@@ -1147,18 +1148,18 @@ mpt_add_chain(void *pAddr, u8 next, u16 length, dma_addr_t dma_addr)
 static void
 mpt_add_chain_64bit(void *pAddr, u8 next, u16 length, dma_addr_t dma_addr)
 {
-		SGEChain64_t *pChain = (SGEChain64_t *) pAddr;
-		u32 tmp = dma_addr & 0xFFFFFFFF;
+	SGEChain64_t *pChain = (SGEChain64_t *) pAddr;
+	u32 tmp = dma_addr & 0xFFFFFFFF;
 
-		pChain->Length = cpu_to_le16(length);
-		pChain->Flags = (MPI_SGE_FLAGS_CHAIN_ELEMENT |
-				 MPI_SGE_FLAGS_64_BIT_ADDRESSING);
+	pChain->Length = cpu_to_le16(length);
+	pChain->Flags = (MPI_SGE_FLAGS_CHAIN_ELEMENT |
+			 MPI_SGE_FLAGS_64_BIT_ADDRESSING);
 
-		pChain->NextChainOffset = next;
+	pChain->NextChainOffset = next;
 
-		pChain->Address.Low = cpu_to_le32(tmp);
-		tmp = (u32)(upper_32_bits(dma_addr));
-		pChain->Address.High = cpu_to_le32(tmp);
+	pChain->Address.Low = cpu_to_le32(tmp);
+	tmp = (u32)(upper_32_bits(dma_addr));
+	pChain->Address.High = cpu_to_le32(tmp);
 }
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
@@ -1360,7 +1361,7 @@ mpt_host_page_alloc(MPT_ADAPTER *ioc, pIOCInit_t ioc_init)
 	ioc->add_sge(psge, flags_length, ioc->HostPageBuffer_dma);
 	ioc->facts.HostPageBufferSGE = ioc_init->HostPageBufferSGE;
 
-return 0;
+	return 0;
 }
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
@@ -2152,7 +2153,7 @@ mpt_suspend(struct pci_dev *pdev, pm_message_t state)
 	    device_state);
 
 	/* put ioc into READY_STATE */
-	if(SendIocReset(ioc, MPI_FUNCTION_IOC_MESSAGE_UNIT_RESET, CAN_SLEEP)) {
+	if (SendIocReset(ioc, MPI_FUNCTION_IOC_MESSAGE_UNIT_RESET, CAN_SLEEP)) {
 		printk(MYIOC_s_ERR_FMT
 		"pci-suspend:  IOC msg unit reset failed!\n", ioc->name);
 	}
@@ -6348,7 +6349,7 @@ mpt_config(MPT_ADAPTER *ioc, CONFIGPARMS *pCfg)
 	u8		 page_type = 0, extend_page;
 	unsigned long 	 timeleft;
 	unsigned long	 flags;
-    int		 in_isr;
+	int		 in_isr;
 	u8		 issue_hard_reset = 0;
 	u8		 retry_count = 0;
 
@@ -7697,7 +7698,7 @@ mpt_display_event_info(MPT_ADAPTER *ioc, EventNotificationReply_t *pEventReply)
 		break;
 	}
 	if (ds)
-		strncpy(evStr, ds, EVENT_DESCR_STR_SZ);
+		strlcpy(evStr, ds, EVENT_DESCR_STR_SZ);
 
 
 	devtprintk(ioc, printk(MYIOC_s_DEBUG_FMT
@@ -8092,15 +8093,15 @@ mpt_spi_log_info(MPT_ADAPTER *ioc, u32 log_info)
 static void
 mpt_sas_log_info(MPT_ADAPTER *ioc, u32 log_info, u8 cb_idx)
 {
-union loginfo_type {
-	u32	loginfo;
-	struct {
-		u32	subcode:16;
-		u32	code:8;
-		u32	originator:4;
-		u32	bus_type:4;
-	}dw;
-};
+	union loginfo_type {
+		u32	loginfo;
+		struct {
+			u32	subcode:16;
+			u32	code:8;
+			u32	originator:4;
+			u32	bus_type:4;
+		} dw;
+	};
 	union loginfo_type sas_loginfo;
 	char *originator_desc = NULL;
 	char *code_desc = NULL;
diff --git a/drivers/message/fusion/mptctl.c b/drivers/message/fusion/mptctl.c
index 7b3b41368931..8d12017b9893 100644
--- a/drivers/message/fusion/mptctl.c
+++ b/drivers/message/fusion/mptctl.c
@@ -2481,24 +2481,13 @@ mptctl_hp_hostinfo(unsigned long arg, unsigned int data_size)
 	else
 		karg.host_no =  -1;
 
-	/* Reformat the fw_version into a string
-	 */
-	karg.fw_version[0] = ioc->facts.FWVersion.Struct.Major >= 10 ?
-		((ioc->facts.FWVersion.Struct.Major / 10) + '0') : '0';
-	karg.fw_version[1] = (ioc->facts.FWVersion.Struct.Major % 10 ) + '0';
-	karg.fw_version[2] = '.';
-	karg.fw_version[3] = ioc->facts.FWVersion.Struct.Minor >= 10 ?
-		((ioc->facts.FWVersion.Struct.Minor / 10) + '0') : '0';
-	karg.fw_version[4] = (ioc->facts.FWVersion.Struct.Minor % 10 ) + '0';
-	karg.fw_version[5] = '.';
-	karg.fw_version[6] = ioc->facts.FWVersion.Struct.Unit >= 10 ?
-		((ioc->facts.FWVersion.Struct.Unit / 10) + '0') : '0';
-	karg.fw_version[7] = (ioc->facts.FWVersion.Struct.Unit % 10 ) + '0';
-	karg.fw_version[8] = '.';
-	karg.fw_version[9] = ioc->facts.FWVersion.Struct.Dev >= 10 ?
-		((ioc->facts.FWVersion.Struct.Dev / 10) + '0') : '0';
-	karg.fw_version[10] = (ioc->facts.FWVersion.Struct.Dev % 10 ) + '0';
-	karg.fw_version[11] = '\0';
+	/* Reformat the fw_version into a string */
+	snprintf(karg.fw_version, sizeof(karg.fw_version),
+		 "%.2hhu.%.2hhu.%.2hhu.%.2hhu",
+		 ioc->facts.FWVersion.Struct.Major,
+		 ioc->facts.FWVersion.Struct.Minor,
+		 ioc->facts.FWVersion.Struct.Unit,
+		 ioc->facts.FWVersion.Struct.Dev);
 
 	/* Issue a config request to get the device serial number
 	 */
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 345f6035599e..439ee9c5f535 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -1165,7 +1165,6 @@ mptsas_schedule_target_reset(void *iocp)
 	 * issue target reset to next device in the queue
 	 */
 
-	head = &hd->target_reset_list;
 	if (list_empty(head))
 		return;
 
diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index 00e7968a1d70..b42c9c479d4b 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -369,7 +369,6 @@ out:
 static void twa_aen_queue_event(TW_Device_Extension *tw_dev, TW_Command_Apache_Header *header)
 {
 	u32 local_time;
-	struct timeval time;
 	TW_Event *event;
 	unsigned short aen;
 	char host[16];
@@ -392,8 +391,8 @@ static void twa_aen_queue_event(TW_Device_Extension *tw_dev, TW_Command_Apache_H
 	memset(event, 0, sizeof(TW_Event));
 
 	event->severity = TW_SEV_OUT(header->status_block.severity__reserved);
-	do_gettimeofday(&time);
-	local_time = (u32)(time.tv_sec - (sys_tz.tz_minuteswest * 60));
+	/* event->time_stamp_sec overflows in y2106 */
+	local_time = (u32)(ktime_get_real_seconds() - (sys_tz.tz_minuteswest * 60));
 	event->time_stamp_sec = local_time;
 	event->aen_code = aen;
 	event->retrieved = TW_AEN_NOT_RETRIEVED;
@@ -473,11 +472,10 @@ out:
 static void twa_aen_sync_time(TW_Device_Extension *tw_dev, int request_id)
 {
 	u32 schedulertime;
-	struct timeval utc;
 	TW_Command_Full *full_command_packet;
 	TW_Command *command_packet;
 	TW_Param_Apache *param;
-	u32 local_time;
+	time64_t local_time;
 
 	/* Fill out the command packet */
 	full_command_packet = tw_dev->command_packet_virt[request_id];
@@ -499,9 +497,8 @@ static void twa_aen_sync_time(TW_Device_Extension *tw_dev, int request_id)
 
 	/* Convert system time in UTC to local time seconds since last 
            Sunday 12:00AM */
-	do_gettimeofday(&utc);
-	local_time = (u32)(utc.tv_sec - (sys_tz.tz_minuteswest * 60));
-	schedulertime = local_time - (3 * 86400);
+	local_time = (ktime_get_real_seconds() - (sys_tz.tz_minuteswest * 60));
+	div_u64_rem(local_time - (3 * 86400), 604800, &schedulertime);
 	schedulertime = cpu_to_le32(schedulertime % 604800);
 
 	memcpy(param->data, &schedulertime, sizeof(u32));
@@ -648,8 +645,7 @@ static long twa_chrdev_ioctl(struct file *file, unsigned int cmd, unsigned long
 	TW_Command_Full *full_command_packet;
 	TW_Compatibility_Info *tw_compat_info;
 	TW_Event *event;
-	struct timeval current_time;
-	u32 current_time_ms;
+	ktime_t current_time;
 	TW_Device_Extension *tw_dev = twa_device_extension_list[iminor(inode)];
 	int retval = TW_IOCTL_ERROR_OS_EFAULT;
 	void __user *argp = (void __user *)arg;
@@ -840,17 +836,17 @@ static long twa_chrdev_ioctl(struct file *file, unsigned int cmd, unsigned long
 		break;
 	case TW_IOCTL_GET_LOCK:
 		tw_lock = (TW_Lock *)tw_ioctl->data_buffer;
-		do_gettimeofday(&current_time);
-		current_time_ms = (current_time.tv_sec * 1000) + (current_time.tv_usec / 1000);
+		current_time = ktime_get();
 
-		if ((tw_lock->force_flag == 1) || (tw_dev->ioctl_sem_lock == 0) || (current_time_ms >= tw_dev->ioctl_msec)) {
+		if ((tw_lock->force_flag == 1) || (tw_dev->ioctl_sem_lock == 0) ||
+		    ktime_after(current_time, tw_dev->ioctl_time)) {
 			tw_dev->ioctl_sem_lock = 1;
-			tw_dev->ioctl_msec = current_time_ms + tw_lock->timeout_msec;
+			tw_dev->ioctl_time = ktime_add_ms(current_time, tw_lock->timeout_msec);
 			tw_ioctl->driver_command.status = 0;
 			tw_lock->time_remaining_msec = tw_lock->timeout_msec;
 		} else {
 			tw_ioctl->driver_command.status = TW_IOCTL_ERROR_STATUS_LOCKED;
-			tw_lock->time_remaining_msec = tw_dev->ioctl_msec - current_time_ms;
+			tw_lock->time_remaining_msec = ktime_ms_delta(tw_dev->ioctl_time, current_time);
 		}
 		break;
 	case TW_IOCTL_RELEASE_LOCK:
diff --git a/drivers/scsi/3w-9xxx.h b/drivers/scsi/3w-9xxx.h
index b6c208cc474f..d88cd3499bd5 100644
--- a/drivers/scsi/3w-9xxx.h
+++ b/drivers/scsi/3w-9xxx.h
@@ -666,7 +666,7 @@ typedef struct TAG_TW_Device_Extension {
 	unsigned char		event_queue_wrapped;
 	unsigned int            error_sequence_id;
 	int                     ioctl_sem_lock;
-	u32                     ioctl_msec;
+	ktime_t                 ioctl_time;
 	int			chrdev_request_id;
 	wait_queue_head_t	ioctl_wqueue;
 	struct mutex		ioctl_lock;
diff --git a/drivers/scsi/3w-sas.c b/drivers/scsi/3w-sas.c
index b150e131b2e7..cf9f2a09b47d 100644
--- a/drivers/scsi/3w-sas.c
+++ b/drivers/scsi/3w-sas.c
@@ -221,7 +221,6 @@ out:
 static void twl_aen_queue_event(TW_Device_Extension *tw_dev, TW_Command_Apache_Header *header)
 {
 	u32 local_time;
-	struct timeval time;
 	TW_Event *event;
 	unsigned short aen;
 	char host[16];
@@ -240,8 +239,8 @@ static void twl_aen_queue_event(TW_Device_Extension *tw_dev, TW_Command_Apache_H
 	memset(event, 0, sizeof(TW_Event));
 
 	event->severity = TW_SEV_OUT(header->status_block.severity__reserved);
-	do_gettimeofday(&time);
-	local_time = (u32)(time.tv_sec - (sys_tz.tz_minuteswest * 60));
+	/* event->time_stamp_sec overflows in y2106 */
+	local_time = (u32)(ktime_get_real_seconds() - (sys_tz.tz_minuteswest * 60));
 	event->time_stamp_sec = local_time;
 	event->aen_code = aen;
 	event->retrieved = TW_AEN_NOT_RETRIEVED;
@@ -408,11 +407,10 @@ out:
 static void twl_aen_sync_time(TW_Device_Extension *tw_dev, int request_id)
 {
 	u32 schedulertime;
-	struct timeval utc;
 	TW_Command_Full *full_command_packet;
 	TW_Command *command_packet;
 	TW_Param_Apache *param;
-	u32 local_time;
+	time64_t local_time;
 
 	/* Fill out the command packet */
 	full_command_packet = tw_dev->command_packet_virt[request_id];
@@ -434,10 +432,9 @@ static void twl_aen_sync_time(TW_Device_Extension *tw_dev, int request_id)
 
 	/* Convert system time in UTC to local time seconds since last 
            Sunday 12:00AM */
-	do_gettimeofday(&utc);
-	local_time = (u32)(utc.tv_sec - (sys_tz.tz_minuteswest * 60));
-	schedulertime = local_time - (3 * 86400);
-	schedulertime = cpu_to_le32(schedulertime % 604800);
+	local_time = (ktime_get_real_seconds() - (sys_tz.tz_minuteswest * 60));
+	div_u64_rem(local_time - (3 * 86400), 604800, &schedulertime);
+	schedulertime = cpu_to_le32(schedulertime);
 
 	memcpy(param->data, &schedulertime, sizeof(u32));
 
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index af3e4d3f9735..e7961cbd2c55 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -42,6 +42,8 @@
 #include <linux/highmem.h> /* For flush_kernel_dcache_page */
 #include <linux/module.h>
 
+#include <asm/unaligned.h>
+
 #include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_device.h>
@@ -913,8 +915,15 @@ static void setinqstr(struct aac_dev *dev, void *data, int tindex)
 	memset(str, ' ', sizeof(*str));
 
 	if (sup_adap_info->adapter_type_text[0]) {
-		char *cp = sup_adap_info->adapter_type_text;
 		int c;
+		char *cp;
+		char *cname = kmemdup(sup_adap_info->adapter_type_text,
+				sizeof(sup_adap_info->adapter_type_text),
+								GFP_ATOMIC);
+		if (!cname)
+			return;
+
+		cp = cname;
 		if ((cp[0] == 'A') && (cp[1] == 'O') && (cp[2] == 'C'))
 			inqstrcpy("SMC", str->vid);
 		else {
@@ -923,7 +932,7 @@ static void setinqstr(struct aac_dev *dev, void *data, int tindex)
 				++cp;
 			c = *cp;
 			*cp = '\0';
-			inqstrcpy(sup_adap_info->adapter_type_text, str->vid);
+			inqstrcpy(cname, str->vid);
 			*cp = c;
 			while (*cp && *cp != ' ')
 				++cp;
@@ -931,14 +940,11 @@ static void setinqstr(struct aac_dev *dev, void *data, int tindex)
 		while (*cp == ' ')
 			++cp;
 		/* last six chars reserved for vol type */
-		c = 0;
-		if (strlen(cp) > sizeof(str->pid)) {
-			c = cp[sizeof(str->pid)];
+		if (strlen(cp) > sizeof(str->pid))
 			cp[sizeof(str->pid)] = '\0';
-		}
 		inqstrcpy (cp, str->pid);
-		if (c)
-			cp[sizeof(str->pid)] = c;
+
+		kfree(cname);
 	} else {
 		struct aac_driver_ident *mp = aac_get_driver_ident(dev->cardtype);
 
@@ -1660,87 +1666,309 @@ static int aac_adapter_hba(struct fib *fib, struct scsi_cmnd *cmd)
 				  (void *) cmd);
 }
 
-int aac_issue_bmic_identify(struct aac_dev *dev, u32 bus, u32 target)
+static int aac_send_safw_bmic_cmd(struct aac_dev *dev,
+	struct aac_srb_unit *srbu, void *xfer_buf, int xfer_len)
 {
-	struct fib *fibptr;
-	struct aac_srb *srbcmd;
-	struct sgmap64 *sg64;
-	struct aac_ciss_identify_pd *identify_resp;
-	dma_addr_t addr;
-	u32 vbus, vid;
-	u16 fibsize, datasize;
-	int rcode = -ENOMEM;
-
+	struct fib	*fibptr;
+	dma_addr_t	addr;
+	int		rcode;
+	int		fibsize;
+	struct aac_srb	*srb;
+	struct aac_srb_reply *srb_reply;
+	struct sgmap64	*sg64;
+	u32 vbus;
+	u32 vid;
+
+	if (!dev->sa_firmware)
+		return 0;
 
+	/* allocate FIB */
 	fibptr = aac_fib_alloc(dev);
 	if (!fibptr)
-		goto out;
+		return -ENOMEM;
 
-	fibsize = sizeof(struct aac_srb) -
-			sizeof(struct sgentry) + sizeof(struct sgentry64);
-	datasize = sizeof(struct aac_ciss_identify_pd);
+	aac_fib_init(fibptr);
+	fibptr->hw_fib_va->header.XferState &=
+		~cpu_to_le32(FastResponseCapable);
 
-	identify_resp = dma_alloc_coherent(&dev->pdev->dev, datasize, &addr,
-					   GFP_KERNEL);
-	if (!identify_resp)
-		goto fib_free_ptr;
+	fibsize  = sizeof(struct aac_srb) - sizeof(struct sgentry) +
+						sizeof(struct sgentry64);
 
-	vbus = (u32)le16_to_cpu(dev->supplement_adapter_info.virt_device_bus);
-	vid = (u32)le16_to_cpu(dev->supplement_adapter_info.virt_device_target);
+	/* allocate DMA buffer for response */
+	addr = dma_map_single(&dev->pdev->dev, xfer_buf, xfer_len,
+							DMA_BIDIRECTIONAL);
+	if (dma_mapping_error(&dev->pdev->dev, addr)) {
+		rcode = -ENOMEM;
+		goto fib_error;
+	}
 
-	aac_fib_init(fibptr);
+	srb = fib_data(fibptr);
+	memcpy(srb, &srbu->srb, sizeof(struct aac_srb));
 
-	srbcmd = (struct aac_srb *) fib_data(fibptr);
-	srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
-	srbcmd->channel  = cpu_to_le32(vbus);
-	srbcmd->id       = cpu_to_le32(vid);
-	srbcmd->lun      = 0;
-	srbcmd->flags    = cpu_to_le32(SRB_DataIn);
-	srbcmd->timeout  = cpu_to_le32(10);
-	srbcmd->retry_limit = 0;
-	srbcmd->cdb_size = cpu_to_le32(12);
-	srbcmd->count = cpu_to_le32(datasize);
+	vbus = (u32)le16_to_cpu(
+			dev->supplement_adapter_info.virt_device_bus);
+	vid  = (u32)le16_to_cpu(
+			dev->supplement_adapter_info.virt_device_target);
 
-	memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
-	srbcmd->cdb[0] = 0x26;
-	srbcmd->cdb[2] = (u8)((AAC_MAX_LUN + target) & 0x00FF);
-	srbcmd->cdb[6] = CISS_IDENTIFY_PHYSICAL_DEVICE;
+	/* set the common request fields */
+	srb->channel		= cpu_to_le32(vbus);
+	srb->id			= cpu_to_le32(vid);
+	srb->lun		= 0;
+	srb->function		= cpu_to_le32(SRBF_ExecuteScsi);
+	srb->timeout		= 0;
+	srb->retry_limit	= 0;
+	srb->cdb_size		= cpu_to_le32(16);
+	srb->count		= cpu_to_le32(xfer_len);
+
+	sg64 = (struct sgmap64 *)&srb->sg;
+	sg64->count		= cpu_to_le32(1);
+	sg64->sg[0].addr[1]	= cpu_to_le32(upper_32_bits(addr));
+	sg64->sg[0].addr[0]	= cpu_to_le32(lower_32_bits(addr));
+	sg64->sg[0].count	= cpu_to_le32(xfer_len);
 
-	sg64 = (struct sgmap64 *)&srbcmd->sg;
-	sg64->count = cpu_to_le32(1);
-	sg64->sg[0].addr[1] = cpu_to_le32((u32)(((addr) >> 16) >> 16));
-	sg64->sg[0].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
-	sg64->sg[0].count = cpu_to_le32(datasize);
+	/*
+	 * Copy the updated data for other dumping or other usage if needed
+	 */
+	memcpy(&srbu->srb, srb, sizeof(struct aac_srb));
+
+	/* issue request to the controller */
+	rcode = aac_fib_send(ScsiPortCommand64, fibptr, fibsize, FsaNormal,
+					1, 1, NULL, NULL);
+
+	if (rcode == -ERESTARTSYS)
+		rcode = -ERESTART;
+
+	if (unlikely(rcode < 0))
+		goto bmic_error;
+
+	srb_reply = (struct aac_srb_reply *)fib_data(fibptr);
+	memcpy(&srbu->srb_reply, srb_reply, sizeof(struct aac_srb_reply));
+
+bmic_error:
+	dma_unmap_single(&dev->pdev->dev, addr, xfer_len, DMA_BIDIRECTIONAL);
+fib_error:
+	aac_fib_complete(fibptr);
+	aac_fib_free(fibptr);
+	return rcode;
+}
+
+static void aac_set_safw_target_qd(struct aac_dev *dev, int bus, int target)
+{
+
+	struct aac_ciss_identify_pd *identify_resp;
 
-	rcode = aac_fib_send(ScsiPortCommand64,
-		fibptr, fibsize, FsaNormal, 1, 1, NULL, NULL);
+	if (dev->hba_map[bus][target].devtype != AAC_DEVTYPE_NATIVE_RAW)
+		return;
+
+	identify_resp = dev->hba_map[bus][target].safw_identify_resp;
+	if (identify_resp == NULL) {
+		dev->hba_map[bus][target].qd_limit = 32;
+		return;
+	}
 
 	if (identify_resp->current_queue_depth_limit <= 0 ||
-		identify_resp->current_queue_depth_limit > 32)
+		identify_resp->current_queue_depth_limit > 255)
 		dev->hba_map[bus][target].qd_limit = 32;
 	else
 		dev->hba_map[bus][target].qd_limit =
 			identify_resp->current_queue_depth_limit;
+}
 
-	dma_free_coherent(&dev->pdev->dev, datasize, identify_resp, addr);
+static int aac_issue_safw_bmic_identify(struct aac_dev *dev,
+	struct aac_ciss_identify_pd **identify_resp, u32 bus, u32 target)
+{
+	int rcode = -ENOMEM;
+	int datasize;
+	struct aac_srb_unit srbu;
+	struct aac_srb *srbcmd;
+	struct aac_ciss_identify_pd *identify_reply;
 
-	aac_fib_complete(fibptr);
+	datasize = sizeof(struct aac_ciss_identify_pd);
+	identify_reply = kmalloc(datasize, GFP_KERNEL);
+	if (!identify_reply)
+		goto out;
+
+	memset(&srbu, 0, sizeof(struct aac_srb_unit));
+
+	srbcmd = &srbu.srb;
+	srbcmd->flags	= cpu_to_le32(SRB_DataIn);
+	srbcmd->cdb[0]	= 0x26;
+	srbcmd->cdb[2]	= (u8)((AAC_MAX_LUN + target) & 0x00FF);
+	srbcmd->cdb[6]	= CISS_IDENTIFY_PHYSICAL_DEVICE;
+
+	rcode = aac_send_safw_bmic_cmd(dev, &srbu, identify_reply, datasize);
+	if (unlikely(rcode < 0))
+		goto mem_free_all;
+
+	*identify_resp = identify_reply;
+
+out:
+	return rcode;
+mem_free_all:
+	kfree(identify_reply);
+	goto out;
+}
+
+static inline void aac_free_safw_ciss_luns(struct aac_dev *dev)
+{
+	kfree(dev->safw_phys_luns);
+	dev->safw_phys_luns = NULL;
+}
+
+/**
+ *	aac_get_safw_ciss_luns()	Process topology change
+ *	@dev:		aac_dev structure
+ *
+ *	Execute a CISS REPORT PHYS LUNS and process the results into
+ *	the current hba_map.
+ */
+static int aac_get_safw_ciss_luns(struct aac_dev *dev)
+{
+	int rcode = -ENOMEM;
+	int datasize;
+	struct aac_srb *srbcmd;
+	struct aac_srb_unit srbu;
+	struct aac_ciss_phys_luns_resp *phys_luns;
+
+	datasize = sizeof(struct aac_ciss_phys_luns_resp) +
+		(AAC_MAX_TARGETS - 1) * sizeof(struct _ciss_lun);
+	phys_luns = kmalloc(datasize, GFP_KERNEL);
+	if (phys_luns == NULL)
+		goto out;
+
+	memset(&srbu, 0, sizeof(struct aac_srb_unit));
+
+	srbcmd = &srbu.srb;
+	srbcmd->flags	= cpu_to_le32(SRB_DataIn);
+	srbcmd->cdb[0]	= CISS_REPORT_PHYSICAL_LUNS;
+	srbcmd->cdb[1]	= 2; /* extended reporting */
+	srbcmd->cdb[8]	= (u8)(datasize >> 8);
+	srbcmd->cdb[9]	= (u8)(datasize);
+
+	rcode = aac_send_safw_bmic_cmd(dev, &srbu, phys_luns, datasize);
+	if (unlikely(rcode < 0))
+		goto mem_free_all;
+
+	if (phys_luns->resp_flag != 2) {
+		rcode = -ENOMSG;
+		goto mem_free_all;
+	}
+
+	dev->safw_phys_luns = phys_luns;
+
+out:
+	return rcode;
+mem_free_all:
+	kfree(phys_luns);
+	goto out;
+}
+
+static inline u32 aac_get_safw_phys_lun_count(struct aac_dev *dev)
+{
+	return get_unaligned_be32(&dev->safw_phys_luns->list_length[0])/24;
+}
+
+static inline u32 aac_get_safw_phys_bus(struct aac_dev *dev, int lun)
+{
+	return dev->safw_phys_luns->lun[lun].level2[1] & 0x3f;
+}
+
+static inline u32 aac_get_safw_phys_target(struct aac_dev *dev, int lun)
+{
+	return dev->safw_phys_luns->lun[lun].level2[0];
+}
+
+static inline u32 aac_get_safw_phys_expose_flag(struct aac_dev *dev, int lun)
+{
+	return dev->safw_phys_luns->lun[lun].bus >> 6;
+}
+
+static inline u32 aac_get_safw_phys_attribs(struct aac_dev *dev, int lun)
+{
+	return dev->safw_phys_luns->lun[lun].node_ident[9];
+}
+
+static inline u32 aac_get_safw_phys_nexus(struct aac_dev *dev, int lun)
+{
+	return *((u32 *)&dev->safw_phys_luns->lun[lun].node_ident[12]);
+}
+
+static inline u32 aac_get_safw_phys_device_type(struct aac_dev *dev, int lun)
+{
+	return dev->safw_phys_luns->lun[lun].node_ident[8];
+}
+
+static inline void aac_free_safw_identify_resp(struct aac_dev *dev,
+						int bus, int target)
+{
+	kfree(dev->hba_map[bus][target].safw_identify_resp);
+	dev->hba_map[bus][target].safw_identify_resp = NULL;
+}
+
+static inline void aac_free_safw_all_identify_resp(struct aac_dev *dev,
+	int lun_count)
+{
+	int luns;
+	int i;
+	u32 bus;
+	u32 target;
+
+	luns = aac_get_safw_phys_lun_count(dev);
+
+	if (luns < lun_count)
+		lun_count = luns;
+	else if (lun_count < 0)
+		lun_count = luns;
+
+	for (i = 0; i < lun_count; i++) {
+		bus = aac_get_safw_phys_bus(dev, i);
+		target = aac_get_safw_phys_target(dev, i);
+
+		aac_free_safw_identify_resp(dev, bus, target);
+	}
+}
+
+static int aac_get_safw_attr_all_targets(struct aac_dev *dev)
+{
+	int i;
+	int rcode = 0;
+	u32 lun_count;
+	u32 bus;
+	u32 target;
+	struct aac_ciss_identify_pd *identify_resp = NULL;
+
+	lun_count = aac_get_safw_phys_lun_count(dev);
+
+	for (i = 0; i < lun_count; ++i) {
+
+		bus = aac_get_safw_phys_bus(dev, i);
+		target = aac_get_safw_phys_target(dev, i);
+
+		rcode = aac_issue_safw_bmic_identify(dev,
+						&identify_resp, bus, target);
+
+		if (unlikely(rcode < 0))
+			goto free_identify_resp;
+
+		dev->hba_map[bus][target].safw_identify_resp = identify_resp;
+	}
 
-fib_free_ptr:
-	aac_fib_free(fibptr);
 out:
 	return rcode;
+free_identify_resp:
+	aac_free_safw_all_identify_resp(dev, i);
+	goto out;
 }
 
 /**
- *	aac_update hba_map()-	update current hba map with data from FW
+ *	aac_set_safw_attr_all_targets-	update current hba map with data from FW
  *	@dev:	aac_dev structure
  *	@phys_luns: FW information from report phys luns
+ *	@rescan: Indicates scan type
  *
  *	Update our hba map with the information gathered from the FW
  */
-void aac_update_hba_map(struct aac_dev *dev,
-		struct aac_ciss_phys_luns_resp *phys_luns, int rescan)
+static void aac_set_safw_attr_all_targets(struct aac_dev *dev)
 {
 	/* ok and extended reporting */
 	u32 lun_count, nexus;
@@ -1748,24 +1976,21 @@ void aac_update_hba_map(struct aac_dev *dev,
 	u8 expose_flag, attribs;
 	u8 devtype;
 
-	lun_count = ((phys_luns->list_length[0] << 24)
-			+ (phys_luns->list_length[1] << 16)
-			+ (phys_luns->list_length[2] << 8)
-			+ (phys_luns->list_length[3])) / 24;
+	lun_count = aac_get_safw_phys_lun_count(dev);
+
+	dev->scan_counter++;
 
 	for (i = 0; i < lun_count; ++i) {
 
-		bus = phys_luns->lun[i].level2[1] & 0x3f;
-		target = phys_luns->lun[i].level2[0];
-		expose_flag = phys_luns->lun[i].bus >> 6;
-		attribs = phys_luns->lun[i].node_ident[9];
-		nexus = *((u32 *) &phys_luns->lun[i].node_ident[12]);
+		bus = aac_get_safw_phys_bus(dev, i);
+		target = aac_get_safw_phys_target(dev, i);
+		expose_flag = aac_get_safw_phys_expose_flag(dev, i);
+		attribs = aac_get_safw_phys_attribs(dev, i);
+		nexus = aac_get_safw_phys_nexus(dev, i);
 
 		if (bus >= AAC_MAX_BUSES || target >= AAC_MAX_TARGETS)
 			continue;
 
-		dev->hba_map[bus][target].expose = expose_flag;
-
 		if (expose_flag != 0) {
 			devtype = AAC_DEVTYPE_RAID_MEMBER;
 			goto update_devtype;
@@ -1778,95 +2003,45 @@ void aac_update_hba_map(struct aac_dev *dev,
 		} else
 			devtype = AAC_DEVTYPE_ARC_RAW;
 
-		if (devtype != AAC_DEVTYPE_NATIVE_RAW)
-			goto update_devtype;
+		dev->hba_map[bus][target].scan_counter = dev->scan_counter;
 
-		if (aac_issue_bmic_identify(dev, bus, target) < 0)
-			dev->hba_map[bus][target].qd_limit = 32;
+		aac_set_safw_target_qd(dev, bus, target);
 
 update_devtype:
-		if (rescan == AAC_INIT)
-			dev->hba_map[bus][target].devtype = devtype;
-		else
-			dev->hba_map[bus][target].new_devtype = devtype;
+		dev->hba_map[bus][target].devtype = devtype;
 	}
 }
 
-/**
- *	aac_report_phys_luns()	Process topology change
- *	@dev:		aac_dev structure
- *	@fibptr:	fib pointer
- *
- *	Execute a CISS REPORT PHYS LUNS and process the results into
- *	the current hba_map.
- */
-int aac_report_phys_luns(struct aac_dev *dev, struct fib *fibptr, int rescan)
+static int aac_setup_safw_targets(struct aac_dev *dev)
 {
-	int fibsize, datasize;
-	struct aac_ciss_phys_luns_resp *phys_luns;
-	struct aac_srb *srbcmd;
-	struct sgmap64 *sg64;
-	dma_addr_t addr;
-	u32 vbus, vid;
 	int rcode = 0;
 
-	/* Thor SA Firmware -> CISS_REPORT_PHYSICAL_LUNS */
-	fibsize = sizeof(struct aac_srb) - sizeof(struct sgentry)
-			+ sizeof(struct sgentry64);
-	datasize = sizeof(struct aac_ciss_phys_luns_resp)
-			+ (AAC_MAX_TARGETS - 1) * sizeof(struct _ciss_lun);
-
-	phys_luns = dma_alloc_coherent(&dev->pdev->dev, datasize, &addr,
-				       GFP_KERNEL);
-	if (phys_luns == NULL) {
-		rcode = -ENOMEM;
-		goto err_out;
-	}
-
-	vbus = (u32) le16_to_cpu(
-			dev->supplement_adapter_info.virt_device_bus);
-	vid = (u32) le16_to_cpu(
-			dev->supplement_adapter_info.virt_device_target);
+	rcode = aac_get_containers(dev);
+	if (unlikely(rcode < 0))
+		goto out;
 
-	aac_fib_init(fibptr);
+	rcode = aac_get_safw_ciss_luns(dev);
+	if (unlikely(rcode < 0))
+		goto out;
 
-	srbcmd = (struct aac_srb *) fib_data(fibptr);
-	srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
-	srbcmd->channel = cpu_to_le32(vbus);
-	srbcmd->id = cpu_to_le32(vid);
-	srbcmd->lun = 0;
-	srbcmd->flags = cpu_to_le32(SRB_DataIn);
-	srbcmd->timeout = cpu_to_le32(10);
-	srbcmd->retry_limit = 0;
-	srbcmd->cdb_size = cpu_to_le32(12);
-	srbcmd->count = cpu_to_le32(datasize);
+	rcode = aac_get_safw_attr_all_targets(dev);
+	if (unlikely(rcode < 0))
+		goto free_ciss_luns;
 
-	memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
-	srbcmd->cdb[0] = CISS_REPORT_PHYSICAL_LUNS;
-	srbcmd->cdb[1] = 2; /* extended reporting */
-	srbcmd->cdb[8] = (u8)(datasize >> 8);
-	srbcmd->cdb[9] = (u8)(datasize);
-
-	sg64 = (struct sgmap64 *) &srbcmd->sg;
-	sg64->count = cpu_to_le32(1);
-	sg64->sg[0].addr[1] = cpu_to_le32(upper_32_bits(addr));
-	sg64->sg[0].addr[0] = cpu_to_le32(lower_32_bits(addr));
-	sg64->sg[0].count = cpu_to_le32(datasize);
-
-	rcode = aac_fib_send(ScsiPortCommand64, fibptr, fibsize,
-			FsaNormal, 1, 1, NULL, NULL);
-
-	/* analyse data */
-	if (rcode >= 0 && phys_luns->resp_flag == 2) {
-		/* ok and extended reporting */
-		aac_update_hba_map(dev, phys_luns, rescan);
-	}
+	aac_set_safw_attr_all_targets(dev);
 
-	dma_free_coherent(&dev->pdev->dev, datasize, phys_luns, addr);
-err_out:
+	aac_free_safw_all_identify_resp(dev, -1);
+free_ciss_luns:
+	aac_free_safw_ciss_luns(dev);
+out:
 	return rcode;
 }
 
+int aac_setup_safw_adapter(struct aac_dev *dev)
+{
+	return aac_setup_safw_targets(dev);
+}
+
 int aac_get_adapter_info(struct aac_dev* dev)
 {
 	struct fib* fibptr;
@@ -1969,12 +2144,6 @@ int aac_get_adapter_info(struct aac_dev* dev)
 		dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
 	}
 
-	if (!dev->sync_mode && dev->sa_firmware &&
-		dev->supplement_adapter_info.virt_device_bus != 0xffff) {
-		/* Thor SA Firmware -> CISS_REPORT_PHYSICAL_LUNS */
-		rcode = aac_report_phys_luns(dev, fibptr, AAC_INIT);
-	}
-
 	if (!dev->in_reset) {
 		char buffer[16];
 		tmp = le32_to_cpu(dev->adapter_info.kernelrev);
@@ -2739,14 +2908,6 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 			}
 		} else {  /* check for physical non-dasd devices */
 			bus = aac_logical_to_phys(scmd_channel(scsicmd));
-			if (bus < AAC_MAX_BUSES && cid < AAC_MAX_TARGETS &&
-				(dev->hba_map[bus][cid].expose
-						== AAC_HIDE_DISK)){
-				if (scsicmd->cmnd[0] == INQUIRY) {
-					scsicmd->result = DID_NO_CONNECT << 16;
-					goto scsi_done_ret;
-				}
-			}
 
 			if (bus < AAC_MAX_BUSES && cid < AAC_MAX_TARGETS &&
 				dev->hba_map[bus][cid].devtype
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index d52265416da2..0095fcbd1c88 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -41,6 +41,7 @@
 
 #include <linux/interrupt.h>
 #include <linux/pci.h>
+#include <scsi/scsi_host.h>
 
 /*------------------------------------------------------------------------------
  *              D E F I N E S
@@ -97,7 +98,7 @@ enum {
 #define	PMC_GLOBAL_INT_BIT0		0x00000001
 
 #ifndef AAC_DRIVER_BUILD
-# define AAC_DRIVER_BUILD 50834
+# define AAC_DRIVER_BUILD 50877
 # define AAC_DRIVER_BRANCH "-custom"
 #endif
 #define MAXIMUM_NUM_CONTAINERS	32
@@ -117,9 +118,13 @@ enum {
 /* Thor: 5 phys. buses: #0: empty, 1-4: 256 targets each */
 #define AAC_MAX_BUSES			5
 #define AAC_MAX_TARGETS		256
+#define AAC_BUS_TARGET_LOOP		(AAC_MAX_BUSES * AAC_MAX_TARGETS)
 #define AAC_MAX_NATIVE_SIZE		2048
 #define FW_ERROR_BUFFER_SIZE		512
 
+#define get_bus_number(x)	(x/AAC_MAX_TARGETS)
+#define get_target_number(x)	(x%AAC_MAX_TARGETS)
+
 /* Thor AIF events */
 #define SA_AIF_HOTPLUG			(1<<1)
 #define SA_AIF_HARDWARE		(1<<2)
@@ -1334,17 +1339,17 @@ struct fib {
 #define AAC_DEVTYPE_RAID_MEMBER	1
 #define AAC_DEVTYPE_ARC_RAW		2
 #define AAC_DEVTYPE_NATIVE_RAW		3
-#define AAC_EXPOSE_DISK		0
-#define AAC_HIDE_DISK			3
+
+#define AAC_SAFW_RESCAN_DELAY		(10 * HZ)
 
 struct aac_hba_map_info {
 	__le32	rmw_nexus;		/* nexus for native HBA devices */
 	u8		devtype;	/* device type */
-	u8		new_devtype;
 	u8		reset_state;	/* 0 - no reset, 1..x - */
 					/* after xth TM LUN reset */
 	u16		qd_limit;
-	u8		expose;		/*checks if to expose or not*/
+	u32		scan_counter;
+	struct aac_ciss_identify_pd  *safw_identify_resp;
 };
 
 /*
@@ -1560,6 +1565,7 @@ struct aac_dev
 	spinlock_t		fib_lock;
 
 	struct mutex		ioctl_mutex;
+	struct mutex		scan_mutex;
 	struct aac_queue_block *queues;
 	/*
 	 *	The user API will use an IOCTL to register itself to receive
@@ -1605,6 +1611,7 @@ struct aac_dev
 	int			maximum_num_channels;
 	struct fsa_dev_info	*fsa_dev;
 	struct task_struct	*thread;
+	struct delayed_work	safw_rescan_work;
 	int			cardtype;
 	/*
 	 *This lock will protect the two 32-bit
@@ -1668,9 +1675,11 @@ struct aac_dev
 	u32			vector_cap;	/* MSI-X vector capab.*/
 	int			msi_enabled;	/* MSI/MSI-X enabled */
 	atomic_t		msix_counter;
+	u32			scan_counter;
 	struct msix_entry	msixentry[AAC_MAX_MSIX];
 	struct aac_msix_ctx	aac_msix[AAC_MAX_MSIX]; /* context */
 	struct aac_hba_map_info	hba_map[AAC_MAX_BUSES][AAC_MAX_TARGETS];
+	struct aac_ciss_phys_luns_resp *safw_phys_luns;
 	u8			adapter_shutdown;
 	u32			handle_pci_error;
 	bool			init_reset;
@@ -2023,6 +2032,12 @@ struct aac_srb_reply
 	__le32		sense_data_size;
 	u8		sense_data[AAC_SENSE_BUFFERSIZE]; // Can this be SCSI_SENSE_BUFFERSIZE
 };
+
+struct aac_srb_unit {
+	struct aac_srb		srb;
+	struct aac_srb_reply	srb_reply;
+};
+
 /*
  * SRB Flags
  */
@@ -2627,16 +2642,41 @@ static inline int aac_adapter_check_health(struct aac_dev *dev)
 	return (dev)->a_ops.adapter_check_health(dev);
 }
 
+
+int aac_scan_host(struct aac_dev *dev);
+
+static inline void aac_schedule_safw_scan_worker(struct aac_dev *dev)
+{
+	schedule_delayed_work(&dev->safw_rescan_work, AAC_SAFW_RESCAN_DELAY);
+}
+
+static inline void aac_safw_rescan_worker(struct work_struct *work)
+{
+	struct aac_dev *dev = container_of(to_delayed_work(work),
+		struct aac_dev, safw_rescan_work);
+
+	wait_event(dev->scsi_host_ptr->host_wait,
+		!scsi_host_in_recovery(dev->scsi_host_ptr));
+
+	aac_scan_host(dev);
+}
+
+static inline void aac_cancel_safw_rescan_worker(struct aac_dev *dev)
+{
+	if (dev->sa_firmware)
+		cancel_delayed_work_sync(&dev->safw_rescan_work);
+}
+
 /* SCp.phase values */
 #define AAC_OWNER_MIDLEVEL	0x101
 #define AAC_OWNER_LOWLEVEL	0x102
 #define AAC_OWNER_ERROR_HANDLER	0x103
 #define AAC_OWNER_FIRMWARE	0x106
 
+void aac_safw_rescan_worker(struct work_struct *work);
 int aac_acquire_irq(struct aac_dev *dev);
 void aac_free_irq(struct aac_dev *dev);
-int aac_report_phys_luns(struct aac_dev *dev, struct fib *fibptr, int rescan);
-int aac_issue_bmic_identify(struct aac_dev *dev, u32 bus, u32 target);
+int aac_setup_safw_adapter(struct aac_dev *dev);
 const char *aac_driverinfo(struct Scsi_Host *);
 void aac_fib_vector_assign(struct aac_dev *dev);
 struct fib *aac_fib_alloc(struct aac_dev *dev);
diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c
index 9ab0fa959d83..a2b3430072c7 100644
--- a/drivers/scsi/aacraid/commctrl.c
+++ b/drivers/scsi/aacraid/commctrl.c
@@ -1052,9 +1052,13 @@ static int aac_send_reset_adapter(struct aac_dev *dev, void __user *arg)
 	if (copy_from_user((void *)&reset, arg, sizeof(struct aac_reset_iop)))
 		return -EFAULT;
 
+	dev->adapter_shutdown = 1;
+
+	mutex_unlock(&dev->ioctl_mutex);
 	retval = aac_reset_adapter(dev, 0, reset.reset_type);
-	return retval;
+	mutex_lock(&dev->ioctl_mutex);
 
+	return retval;
 }
 
 int aac_do_ioctl(struct aac_dev * dev, int cmd, void __user *arg)
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index 1bc623ad3faf..0dc7b5a4fea2 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -42,6 +42,8 @@
 #include <linux/completion.h>
 #include <linux/mm.h>
 #include <scsi/scsi_host.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_cmnd.h>
 
 #include "aacraid.h"
 
@@ -284,6 +286,38 @@ static void aac_queue_init(struct aac_dev * dev, struct aac_queue * q, u32 *mem,
 	q->entries = qsize;
 }
 
+static void aac_wait_for_io_completion(struct aac_dev *aac)
+{
+	unsigned long flagv = 0;
+	int i = 0;
+
+	for (i = 60; i; --i) {
+		struct scsi_device *dev;
+		struct scsi_cmnd *command;
+		int active = 0;
+
+		__shost_for_each_device(dev, aac->scsi_host_ptr) {
+			spin_lock_irqsave(&dev->list_lock, flagv);
+			list_for_each_entry(command, &dev->cmd_list, list) {
+				if (command->SCp.phase == AAC_OWNER_FIRMWARE) {
+					active++;
+					break;
+				}
+			}
+			spin_unlock_irqrestore(&dev->list_lock, flagv);
+			if (active)
+				break;
+
+		}
+		/*
+		 * We can exit If all the commands are complete
+		 */
+		if (active == 0)
+			break;
+		ssleep(1);
+	}
+}
+
 /**
  *	aac_send_shutdown		-	shutdown an adapter
  *	@dev: Adapter to shutdown
@@ -295,12 +329,10 @@ int aac_send_shutdown(struct aac_dev * dev)
 {
 	struct fib * fibctx;
 	struct aac_close *cmd;
-	int status;
+	int status = 0;
 
-	fibctx = aac_fib_alloc(dev);
-	if (!fibctx)
-		return -ENOMEM;
-	aac_fib_init(fibctx);
+	if (aac_adapter_check_health(dev))
+		return status;
 
 	if (!dev->adapter_shutdown) {
 		mutex_lock(&dev->ioctl_mutex);
@@ -308,6 +340,13 @@ int aac_send_shutdown(struct aac_dev * dev)
 		mutex_unlock(&dev->ioctl_mutex);
 	}
 
+	aac_wait_for_io_completion(dev);
+
+	fibctx = aac_fib_alloc(dev);
+	if (!fibctx)
+		return -ENOMEM;
+	aac_fib_init(fibctx);
+
 	cmd = (struct aac_close *) fib_data(fibctx);
 	cmd->command = cpu_to_le32(VM_CloseAll);
 	cmd->cid = cpu_to_le32(0xfffffffe);
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index 80a8cb26cdea..84858d5c8257 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -33,6 +33,7 @@
 
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/crash_dump.h>
 #include <linux/types.h>
 #include <linux/sched.h>
 #include <linux/pci.h>
@@ -1629,28 +1630,28 @@ static int _aac_reset_adapter(struct aac_dev *aac, int forced, u8 reset_type)
 		command->scsi_done(command);
 	}
 	/*
-	 * Any Device that was already marked offline needs to be cleaned up
+	 * Any Device that was already marked offline needs to be marked
+	 * running
 	 */
 	__shost_for_each_device(dev, host) {
-		if (!scsi_device_online(dev)) {
-			sdev_printk(KERN_INFO, dev, "Removing offline device\n");
-			scsi_remove_device(dev);
-			scsi_device_put(dev);
-		}
+		if (!scsi_device_online(dev))
+			scsi_device_set_state(dev, SDEV_RUNNING);
 	}
 	retval = 0;
 
 out:
 	aac->in_reset = 0;
 	scsi_unblock_requests(host);
+
 	/*
 	 * Issue bus rescan to catch any configuration that might have
 	 * occurred
 	 */
-	if (!retval) {
-		dev_info(&aac->pdev->dev, "Issuing bus rescan\n");
-		scsi_scan_host(host);
+	if (!retval && !is_kdump_kernel()) {
+		dev_info(&aac->pdev->dev, "Scheduling bus rescan\n");
+		aac_schedule_safw_scan_worker(aac);
 	}
+
 	if (jafo) {
 		spin_lock_irq(host->host_lock);
 	}
@@ -1681,31 +1682,6 @@ int aac_reset_adapter(struct aac_dev *aac, int forced, u8 reset_type)
 	 */
 	host = aac->scsi_host_ptr;
 	scsi_block_requests(host);
-	if (forced < 2) for (retval = 60; retval; --retval) {
-		struct scsi_device * dev;
-		struct scsi_cmnd * command;
-		int active = 0;
-
-		__shost_for_each_device(dev, host) {
-			spin_lock_irqsave(&dev->list_lock, flagv);
-			list_for_each_entry(command, &dev->cmd_list, list) {
-				if (command->SCp.phase == AAC_OWNER_FIRMWARE) {
-					active++;
-					break;
-				}
-			}
-			spin_unlock_irqrestore(&dev->list_lock, flagv);
-			if (active)
-				break;
-
-		}
-		/*
-		 * We can exit If all the commands are complete
-		 */
-		if (active == 0)
-			break;
-		ssleep(1);
-	}
 
 	/* Quiesce build, flush cache, write through mode */
 	if (forced < 2)
@@ -1874,42 +1850,124 @@ out:
 	return BlinkLED;
 }
 
+static inline int is_safw_raid_volume(struct aac_dev *aac, int bus, int target)
+{
+	return bus == CONTAINER_CHANNEL && target < aac->maximum_num_containers;
+}
+
+static struct scsi_device *aac_lookup_safw_scsi_device(struct aac_dev *dev,
+								int bus,
+								int target)
+{
+	if (bus != CONTAINER_CHANNEL)
+		bus = aac_phys_to_logical(bus);
+
+	return scsi_device_lookup(dev->scsi_host_ptr, bus, target, 0);
+}
+
+static int aac_add_safw_device(struct aac_dev *dev, int bus, int target)
+{
+	if (bus != CONTAINER_CHANNEL)
+		bus = aac_phys_to_logical(bus);
+
+	return scsi_add_device(dev->scsi_host_ptr, bus, target, 0);
+}
+
+static void aac_put_safw_scsi_device(struct scsi_device *sdev)
+{
+	if (sdev)
+		scsi_device_put(sdev);
+}
 
-static void aac_resolve_luns(struct aac_dev *dev)
+static void aac_remove_safw_device(struct aac_dev *dev, int bus, int target)
 {
-	int bus, target, channel;
 	struct scsi_device *sdev;
-	u8 devtype;
-	u8 new_devtype;
 
-	for (bus = 0; bus < AAC_MAX_BUSES; bus++) {
-		for (target = 0; target < AAC_MAX_TARGETS; target++) {
+	sdev = aac_lookup_safw_scsi_device(dev, bus, target);
+	scsi_remove_device(sdev);
+	aac_put_safw_scsi_device(sdev);
+}
 
-			if (bus == CONTAINER_CHANNEL)
-				channel = CONTAINER_CHANNEL;
-			else
-				channel = aac_phys_to_logical(bus);
+static inline int aac_is_safw_scan_count_equal(struct aac_dev *dev,
+	int bus, int target)
+{
+	return dev->hba_map[bus][target].scan_counter == dev->scan_counter;
+}
 
-			devtype = dev->hba_map[bus][target].devtype;
-			new_devtype = dev->hba_map[bus][target].new_devtype;
+static int aac_is_safw_target_valid(struct aac_dev *dev, int bus, int target)
+{
+	if (is_safw_raid_volume(dev, bus, target))
+		return dev->fsa_dev[target].valid;
+	else
+		return aac_is_safw_scan_count_equal(dev, bus, target);
+}
 
-			sdev = scsi_device_lookup(dev->scsi_host_ptr, channel,
-					target, 0);
+static int aac_is_safw_device_exposed(struct aac_dev *dev, int bus, int target)
+{
+	int is_exposed = 0;
+	struct scsi_device *sdev;
 
-			if (!sdev && new_devtype)
-				scsi_add_device(dev->scsi_host_ptr, channel,
-						target, 0);
-			else if (sdev && new_devtype != devtype)
-				scsi_remove_device(sdev);
-			else if (sdev && new_devtype == devtype)
-				scsi_rescan_device(&sdev->sdev_gendev);
+	sdev = aac_lookup_safw_scsi_device(dev, bus, target);
+	if (sdev)
+		is_exposed = 1;
+	aac_put_safw_scsi_device(sdev);
 
-			if (sdev)
-				scsi_device_put(sdev);
+	return is_exposed;
+}
 
-			dev->hba_map[bus][target].devtype = new_devtype;
-		}
+static int aac_update_safw_host_devices(struct aac_dev *dev)
+{
+	int i;
+	int bus;
+	int target;
+	int is_exposed = 0;
+	int rcode = 0;
+
+	rcode = aac_setup_safw_adapter(dev);
+	if (unlikely(rcode < 0)) {
+		goto out;
 	}
+
+	for (i = 0; i < AAC_BUS_TARGET_LOOP; i++) {
+
+		bus = get_bus_number(i);
+		target = get_target_number(i);
+
+		is_exposed = aac_is_safw_device_exposed(dev, bus, target);
+
+		if (aac_is_safw_target_valid(dev, bus, target) && !is_exposed)
+			aac_add_safw_device(dev, bus, target);
+		else if (!aac_is_safw_target_valid(dev, bus, target) &&
+								is_exposed)
+			aac_remove_safw_device(dev, bus, target);
+	}
+out:
+	return rcode;
+}
+
+static int aac_scan_safw_host(struct aac_dev *dev)
+{
+	int rcode = 0;
+
+	rcode = aac_update_safw_host_devices(dev);
+	if (rcode)
+		aac_schedule_safw_scan_worker(dev);
+
+	return rcode;
+}
+
+int aac_scan_host(struct aac_dev *dev)
+{
+	int rcode = 0;
+
+	mutex_lock(&dev->scan_mutex);
+	if (dev->sa_firmware)
+		rcode = aac_scan_safw_host(dev);
+	else
+		scsi_scan_host(dev->scsi_host_ptr);
+	mutex_unlock(&dev->scan_mutex);
+
+	return rcode;
 }
 
 /**
@@ -1922,10 +1980,8 @@ static void aac_resolve_luns(struct aac_dev *dev)
  */
 static void aac_handle_sa_aif(struct aac_dev *dev, struct fib *fibptr)
 {
-	int i, bus, target, container, rcode = 0;
+	int i;
 	u32 events = 0;
-	struct fib *fib;
-	struct scsi_device *sdev;
 
 	if (fibptr->hbacmd_size & SA_AIF_HOTPLUG)
 		events = SA_AIF_HOTPLUG;
@@ -1947,44 +2003,8 @@ static void aac_handle_sa_aif(struct aac_dev *dev, struct fib *fibptr)
 	case SA_AIF_LDEV_CHANGE:
 	case SA_AIF_BPCFG_CHANGE:
 
-		fib = aac_fib_alloc(dev);
-		if (!fib) {
-			pr_err("aac_handle_sa_aif: out of memory\n");
-			return;
-		}
-		for (bus = 0; bus < AAC_MAX_BUSES; bus++)
-			for (target = 0; target < AAC_MAX_TARGETS; target++)
-				dev->hba_map[bus][target].new_devtype = 0;
-
-		rcode = aac_report_phys_luns(dev, fib, AAC_RESCAN);
-
-		if (rcode != -ERESTARTSYS)
-			aac_fib_free(fib);
-
-		aac_resolve_luns(dev);
-
-		if (events == SA_AIF_LDEV_CHANGE ||
-		    events == SA_AIF_BPCFG_CHANGE) {
-			aac_get_containers(dev);
-			for (container = 0; container <
-			dev->maximum_num_containers; ++container) {
-				sdev = scsi_device_lookup(dev->scsi_host_ptr,
-						CONTAINER_CHANNEL,
-						container, 0);
-				if (dev->fsa_dev[container].valid && !sdev) {
-					scsi_add_device(dev->scsi_host_ptr,
-						CONTAINER_CHANNEL,
-						container, 0);
-				} else if (!dev->fsa_dev[container].valid &&
-					sdev) {
-					scsi_remove_device(sdev);
-					scsi_device_put(sdev);
-				} else if (sdev) {
-					scsi_rescan_device(&sdev->sdev_gendev);
-					scsi_device_put(sdev);
-				}
-			}
-		}
+		aac_scan_host(dev);
+
 		break;
 
 	case SA_AIF_BPSTAT_CHANGE:
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index d55332de08f9..b3b931ab77eb 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -683,6 +683,9 @@ static int aac_eh_abort(struct scsi_cmnd* cmd)
 	u32 bus, cid;
 	int ret = FAILED;
 
+	if (aac_adapter_check_health(aac))
+		return ret;
+
 	bus = aac_logical_to_phys(scmd_channel(cmd));
 	cid = scmd_id(cmd);
 	if (aac->hba_map[bus][cid].devtype == AAC_DEVTYPE_NATIVE_RAW) {
@@ -690,7 +693,6 @@ static int aac_eh_abort(struct scsi_cmnd* cmd)
 		struct aac_hba_tm_req *tmf;
 		int status;
 		u64 address;
-		__le32 managed_request_id;
 
 		pr_err("%s: Host adapter abort request (%d,%d,%d,%d)\n",
 		 AAC_DRIVERNAME,
@@ -703,8 +705,6 @@ static int aac_eh_abort(struct scsi_cmnd* cmd)
 				(fib->flags & FIB_CONTEXT_FLAG_NATIVE_HBA) &&
 				(fib->callback_data == cmd)) {
 				found = 1;
-				managed_request_id = ((struct aac_hba_cmd_req *)
-					fib->hw_fib_va)->request_id;
 				break;
 			}
 		}
@@ -1375,18 +1375,15 @@ static ssize_t aac_store_reset_adapter(struct device *device,
 				       const char *buf, size_t count)
 {
 	int retval = -EACCES;
-	int bled = 0;
-	struct aac_dev *aac;
-
 
 	if (!capable(CAP_SYS_ADMIN))
 		return retval;
 
-	aac = (struct aac_dev *)class_to_shost(device)->hostdata;
-	bled = buf[0] == '!' ? 1:0;
-	retval = aac_reset_adapter(aac, bled, IOP_HWSOFT_RESET);
+	retval = aac_reset_adapter(shost_priv(class_to_shost(device)),
+					buf[0] == '!', IOP_HWSOFT_RESET);
 	if (retval >= 0)
 		retval = count;
+
 	return retval;
 }
 
@@ -1689,6 +1686,9 @@ static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	spin_lock_init(&aac->fib_lock);
 
 	mutex_init(&aac->ioctl_mutex);
+	mutex_init(&aac->scan_mutex);
+
+	INIT_DELAYED_WORK(&aac->safw_rescan_work, aac_safw_rescan_worker);
 	/*
 	 *	Map in the registers from the adapter.
 	 */
@@ -1792,7 +1792,8 @@ static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	error = scsi_add_host(shost, &pdev->dev);
 	if (error)
 		goto out_deinit;
-	scsi_scan_host(shost);
+
+	aac_scan_host(aac);
 
 	pci_enable_pcie_error_reporting(pdev);
 	pci_save_state(pdev);
@@ -1877,6 +1878,7 @@ static int aac_suspend(struct pci_dev *pdev, pm_message_t state)
 	struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
 
 	scsi_block_requests(shost);
+	aac_cancel_safw_rescan_worker(aac);
 	aac_send_shutdown(aac);
 
 	aac_release_resources(aac);
@@ -1935,6 +1937,7 @@ static void aac_remove_one(struct pci_dev *pdev)
 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
 	struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
 
+	aac_cancel_safw_rescan_worker(aac);
 	scsi_remove_host(shost);
 
 	__aac_shutdown(aac);
@@ -1992,6 +1995,7 @@ static pci_ers_result_t aac_pci_error_detected(struct pci_dev *pdev,
 		aac->handle_pci_error = 1;
 
 		scsi_block_requests(aac->scsi_host_ptr);
+		aac_cancel_safw_rescan_worker(aac);
 		aac_flush_ios(aac);
 		aac_release_resources(aac);
 
@@ -2076,7 +2080,7 @@ static void aac_pci_resume(struct pci_dev *pdev)
 		if (sdev->sdev_state == SDEV_OFFLINE)
 			sdev->sdev_state = SDEV_RUNNING;
 	scsi_unblock_requests(aac->scsi_host_ptr);
-	scsi_scan_host(aac->scsi_host_ptr);
+	aac_scan_host(aac);
 	pci_save_state(pdev);
 
 	dev_err(&pdev->dev, "aacraid: PCI error - resume\n");
diff --git a/drivers/scsi/aacraid/sa.c b/drivers/scsi/aacraid/sa.c
index 553922fed524..882f40353b96 100644
--- a/drivers/scsi/aacraid/sa.c
+++ b/drivers/scsi/aacraid/sa.c
@@ -329,6 +329,22 @@ int aac_sa_init(struct aac_dev *dev)
 	instance = dev->id;
 	name     = dev->name;
 
+	/*
+	 *	Fill in the function dispatch table.
+	 */
+
+	dev->a_ops.adapter_interrupt = aac_sa_interrupt_adapter;
+	dev->a_ops.adapter_disable_int = aac_sa_disable_interrupt;
+	dev->a_ops.adapter_enable_int = aac_sa_enable_interrupt;
+	dev->a_ops.adapter_notify = aac_sa_notify_adapter;
+	dev->a_ops.adapter_sync_cmd = sa_sync_cmd;
+	dev->a_ops.adapter_check_health = aac_sa_check_health;
+	dev->a_ops.adapter_restart = aac_sa_restart_adapter;
+	dev->a_ops.adapter_start = aac_sa_start_adapter;
+	dev->a_ops.adapter_intr = aac_sa_intr;
+	dev->a_ops.adapter_deliver = aac_rx_deliver_producer;
+	dev->a_ops.adapter_ioremap = aac_sa_ioremap;
+
 	if (aac_sa_ioremap(dev, dev->base_size)) {
 		printk(KERN_WARNING "%s: unable to map adapter.\n", name);
 		goto error_iounmap;
@@ -363,22 +379,6 @@ int aac_sa_init(struct aac_dev *dev)
 	}
 
 	/*
-	 *	Fill in the function dispatch table.
-	 */
-
-	dev->a_ops.adapter_interrupt = aac_sa_interrupt_adapter;
-	dev->a_ops.adapter_disable_int = aac_sa_disable_interrupt;
-	dev->a_ops.adapter_enable_int = aac_sa_enable_interrupt;
-	dev->a_ops.adapter_notify = aac_sa_notify_adapter;
-	dev->a_ops.adapter_sync_cmd = sa_sync_cmd;
-	dev->a_ops.adapter_check_health = aac_sa_check_health;
-	dev->a_ops.adapter_restart = aac_sa_restart_adapter;
-	dev->a_ops.adapter_start = aac_sa_start_adapter;
-	dev->a_ops.adapter_intr = aac_sa_intr;
-	dev->a_ops.adapter_deliver = aac_rx_deliver_producer;
-	dev->a_ops.adapter_ioremap = aac_sa_ioremap;
-
-	/*
 	 *	First clear out all interrupts.  Then enable the one's that 
 	 *	we can handle.
 	 */
diff --git a/drivers/scsi/arcmsr/arcmsr.h b/drivers/scsi/arcmsr/arcmsr.h
index a254b32eba39..f375f3557c18 100644
--- a/drivers/scsi/arcmsr/arcmsr.h
+++ b/drivers/scsi/arcmsr/arcmsr.h
@@ -45,52 +45,57 @@
 #include <linux/interrupt.h>
 struct device_attribute;
 /*The limit of outstanding scsi command that firmware can handle*/
-#ifdef CONFIG_XEN
-	#define ARCMSR_MAX_FREECCB_NUM	160
-#define ARCMSR_MAX_OUTSTANDING_CMD	155
-#else
-	#define ARCMSR_MAX_FREECCB_NUM	320
-#define ARCMSR_MAX_OUTSTANDING_CMD	255
-#endif
-#define ARCMSR_DRIVER_VERSION		"v1.30.00.22-20151126"
-#define ARCMSR_SCSI_INITIATOR_ID						255
-#define ARCMSR_MAX_XFER_SECTORS							512
-#define ARCMSR_MAX_XFER_SECTORS_B						4096
-#define ARCMSR_MAX_XFER_SECTORS_C						304
-#define ARCMSR_MAX_TARGETID							17
-#define ARCMSR_MAX_TARGETLUN							8
-#define ARCMSR_MAX_CMD_PERLUN		                 ARCMSR_MAX_OUTSTANDING_CMD
-#define ARCMSR_MAX_QBUFFER							4096
-#define ARCMSR_DEFAULT_SG_ENTRIES						38
-#define ARCMSR_MAX_HBB_POSTQUEUE						264
+#define ARCMSR_MAX_FREECCB_NUM		1024
+#define ARCMSR_MAX_OUTSTANDING_CMD	1024
+#define ARCMSR_DEFAULT_OUTSTANDING_CMD	128
+#define ARCMSR_MIN_OUTSTANDING_CMD	32
+#define ARCMSR_DRIVER_VERSION		"v1.40.00.04-20171130"
+#define ARCMSR_SCSI_INITIATOR_ID	255
+#define ARCMSR_MAX_XFER_SECTORS		512
+#define ARCMSR_MAX_XFER_SECTORS_B	4096
+#define ARCMSR_MAX_XFER_SECTORS_C	304
+#define ARCMSR_MAX_TARGETID		17
+#define ARCMSR_MAX_TARGETLUN		8
+#define ARCMSR_MAX_CMD_PERLUN		128
+#define ARCMSR_DEFAULT_CMD_PERLUN	32
+#define ARCMSR_MIN_CMD_PERLUN		1
+#define ARCMSR_MAX_QBUFFER		4096
+#define ARCMSR_DEFAULT_SG_ENTRIES	38
+#define ARCMSR_MAX_HBB_POSTQUEUE	264
 #define ARCMSR_MAX_ARC1214_POSTQUEUE	256
 #define ARCMSR_MAX_ARC1214_DONEQUEUE	257
-#define ARCMSR_MAX_XFER_LEN							0x26000 /* 152K */
-#define ARCMSR_CDB_SG_PAGE_LENGTH						256 
+#define ARCMSR_MAX_HBE_DONEQUEUE	512
+#define ARCMSR_MAX_XFER_LEN		0x26000 /* 152K */
+#define ARCMSR_CDB_SG_PAGE_LENGTH	256
 #define ARCMST_NUM_MSIX_VECTORS		4
 #ifndef PCI_DEVICE_ID_ARECA_1880
-#define PCI_DEVICE_ID_ARECA_1880 0x1880
- #endif
+#define PCI_DEVICE_ID_ARECA_1880	0x1880
+#endif
 #ifndef PCI_DEVICE_ID_ARECA_1214
-	#define PCI_DEVICE_ID_ARECA_1214	0x1214
+#define PCI_DEVICE_ID_ARECA_1214	0x1214
 #endif
 #ifndef PCI_DEVICE_ID_ARECA_1203
-	#define PCI_DEVICE_ID_ARECA_1203	0x1203
+#define PCI_DEVICE_ID_ARECA_1203	0x1203
 #endif
+#ifndef PCI_DEVICE_ID_ARECA_1884
+#define PCI_DEVICE_ID_ARECA_1884	0x1884
+#endif
+#define	ARCMSR_HOURS			(1000 * 60 * 60 * 4)
+#define	ARCMSR_MINUTES			(1000 * 60 * 60)
 /*
 **********************************************************************************
 **
 **********************************************************************************
 */
-#define ARC_SUCCESS                                                       0
-#define ARC_FAILURE                                                       1
+#define ARC_SUCCESS	0
+#define ARC_FAILURE	1
 /*
 *******************************************************************************
 **        split 64bits dma addressing
 *******************************************************************************
 */
-#define dma_addr_hi32(addr)               (uint32_t) ((addr>>16)>>16)
-#define dma_addr_lo32(addr)               (uint32_t) (addr & 0xffffffff)
+#define dma_addr_hi32(addr)	(uint32_t) ((addr>>16)>>16)
+#define dma_addr_lo32(addr)	(uint32_t) (addr & 0xffffffff)
 /*
 *******************************************************************************
 **        MESSAGE CONTROL CODE
@@ -130,7 +135,7 @@ struct CMD_MESSAGE_FIELD
 #define FUNCTION_SAY_HELLO			0x0807
 #define FUNCTION_SAY_GOODBYE			0x0808
 #define FUNCTION_FLUSH_ADAPTER_CACHE		0x0809
-#define FUNCTION_GET_FIRMWARE_STATUS			0x080A
+#define FUNCTION_GET_FIRMWARE_STATUS		0x080A
 #define FUNCTION_HARDWARE_RESET			0x080B
 /* ARECA IO CONTROL CODE*/
 #define ARCMSR_MESSAGE_READ_RQBUFFER       \
@@ -161,18 +166,18 @@ struct CMD_MESSAGE_FIELD
 **   structure for holding DMA address data
 *************************************************************
 */
-#define IS_DMA64			(sizeof(dma_addr_t) == 8)
-#define IS_SG64_ADDR                0x01000000 /* bit24 */
+#define IS_DMA64	(sizeof(dma_addr_t) == 8)
+#define IS_SG64_ADDR	0x01000000 /* bit24 */
 struct  SG32ENTRY
 {
-	__le32					length;
-	__le32					address;
+	__le32		length;
+	__le32		address;
 }__attribute__ ((packed));
 struct  SG64ENTRY
 {
-	__le32					length;
-	__le32					address;
-	__le32					addresshigh;
+	__le32		length;
+	__le32		address;
+	__le32		addresshigh;
 }__attribute__ ((packed));
 /*
 ********************************************************************
@@ -191,50 +196,50 @@ struct QBUFFER
 */
 struct FIRMWARE_INFO
 {
-	uint32_t      signature;		/*0, 00-03*/
-	uint32_t      request_len;		/*1, 04-07*/
-	uint32_t      numbers_queue;		/*2, 08-11*/
-	uint32_t      sdram_size;               /*3, 12-15*/
-	uint32_t      ide_channels;		/*4, 16-19*/
-	char          vendor[40];		/*5, 20-59*/
-	char          model[8];			/*15, 60-67*/
-	char          firmware_ver[16];     	/*17, 68-83*/
-	char          device_map[16];		/*21, 84-99*/
-	uint32_t		cfgVersion;               	/*25,100-103 Added for checking of new firmware capability*/
-	uint8_t		cfgSerial[16];           	/*26,104-119*/
-	uint32_t		cfgPicStatus;            	/*30,120-123*/	
+	uint32_t	signature;		/*0, 00-03*/
+	uint32_t	request_len;		/*1, 04-07*/
+	uint32_t	numbers_queue;		/*2, 08-11*/
+	uint32_t	sdram_size;		/*3, 12-15*/
+	uint32_t	ide_channels;		/*4, 16-19*/
+	char		vendor[40];		/*5, 20-59*/
+	char		model[8];		/*15, 60-67*/
+	char		firmware_ver[16];     	/*17, 68-83*/
+	char		device_map[16];		/*21, 84-99*/
+	uint32_t	cfgVersion;		/*25,100-103 Added for checking of new firmware capability*/
+	uint8_t		cfgSerial[16];		/*26,104-119*/
+	uint32_t	cfgPicStatus;		/*30,120-123*/
 };
 /* signature of set and get firmware config */
-#define ARCMSR_SIGNATURE_GET_CONFIG		      0x87974060
-#define ARCMSR_SIGNATURE_SET_CONFIG		      0x87974063
+#define ARCMSR_SIGNATURE_GET_CONFIG		0x87974060
+#define ARCMSR_SIGNATURE_SET_CONFIG		0x87974063
 /* message code of inbound message register */
-#define ARCMSR_INBOUND_MESG0_NOP		      0x00000000
-#define ARCMSR_INBOUND_MESG0_GET_CONFIG		      0x00000001
-#define ARCMSR_INBOUND_MESG0_SET_CONFIG               0x00000002
-#define ARCMSR_INBOUND_MESG0_ABORT_CMD                0x00000003
-#define ARCMSR_INBOUND_MESG0_STOP_BGRB                0x00000004
-#define ARCMSR_INBOUND_MESG0_FLUSH_CACHE              0x00000005
-#define ARCMSR_INBOUND_MESG0_START_BGRB               0x00000006
-#define ARCMSR_INBOUND_MESG0_CHK331PENDING            0x00000007
-#define ARCMSR_INBOUND_MESG0_SYNC_TIMER               0x00000008
+#define ARCMSR_INBOUND_MESG0_NOP		0x00000000
+#define ARCMSR_INBOUND_MESG0_GET_CONFIG		0x00000001
+#define ARCMSR_INBOUND_MESG0_SET_CONFIG		0x00000002
+#define ARCMSR_INBOUND_MESG0_ABORT_CMD		0x00000003
+#define ARCMSR_INBOUND_MESG0_STOP_BGRB		0x00000004
+#define ARCMSR_INBOUND_MESG0_FLUSH_CACHE	0x00000005
+#define ARCMSR_INBOUND_MESG0_START_BGRB		0x00000006
+#define ARCMSR_INBOUND_MESG0_CHK331PENDING	0x00000007
+#define ARCMSR_INBOUND_MESG0_SYNC_TIMER		0x00000008
 /* doorbell interrupt generator */
-#define ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK           0x00000001
-#define ARCMSR_INBOUND_DRIVER_DATA_READ_OK            0x00000002
-#define ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK          0x00000001
-#define ARCMSR_OUTBOUND_IOP331_DATA_READ_OK           0x00000002
+#define ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK	0x00000001
+#define ARCMSR_INBOUND_DRIVER_DATA_READ_OK	0x00000002
+#define ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK	0x00000001
+#define ARCMSR_OUTBOUND_IOP331_DATA_READ_OK	0x00000002
 /* ccb areca cdb flag */
-#define ARCMSR_CCBPOST_FLAG_SGL_BSIZE                 0x80000000
-#define ARCMSR_CCBPOST_FLAG_IAM_BIOS                  0x40000000
-#define ARCMSR_CCBREPLY_FLAG_IAM_BIOS                 0x40000000
-#define ARCMSR_CCBREPLY_FLAG_ERROR_MODE0              0x10000000
-#define ARCMSR_CCBREPLY_FLAG_ERROR_MODE1              0x00000001
+#define ARCMSR_CCBPOST_FLAG_SGL_BSIZE		0x80000000
+#define ARCMSR_CCBPOST_FLAG_IAM_BIOS		0x40000000
+#define ARCMSR_CCBREPLY_FLAG_IAM_BIOS		0x40000000
+#define ARCMSR_CCBREPLY_FLAG_ERROR_MODE0	0x10000000
+#define ARCMSR_CCBREPLY_FLAG_ERROR_MODE1	0x00000001
 /* outbound firmware ok */
-#define ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK             0x80000000
+#define ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK	0x80000000
 /* ARC-1680 Bus Reset*/
-#define ARCMSR_ARC1680_BUS_RESET				0x00000003
+#define ARCMSR_ARC1680_BUS_RESET		0x00000003
 /* ARC-1880 Bus Reset*/
-#define ARCMSR_ARC1880_RESET_ADAPTER				0x00000024
-#define ARCMSR_ARC1880_DiagWrite_ENABLE			0x00000080
+#define ARCMSR_ARC1880_RESET_ADAPTER		0x00000024
+#define ARCMSR_ARC1880_DiagWrite_ENABLE		0x00000080
 
 /*
 ************************************************************************
@@ -277,9 +282,10 @@ struct FIRMWARE_INFO
 #define ARCMSR_MESSAGE_FLUSH_CACHE                    0x00050008
 /* (ARCMSR_INBOUND_MESG0_START_BGRB<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */
 #define ARCMSR_MESSAGE_START_BGRB		      0x00060008
+#define ARCMSR_MESSAGE_SYNC_TIMER		      0x00080008
 #define ARCMSR_MESSAGE_START_DRIVER_MODE	      0x000E0008
 #define ARCMSR_MESSAGE_SET_POST_WINDOW		      0x000F0008
-#define ARCMSR_MESSAGE_ACTIVE_EOI_MODE		    0x00100008
+#define ARCMSR_MESSAGE_ACTIVE_EOI_MODE		      0x00100008
 /* ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK */
 #define ARCMSR_MESSAGE_FIRMWARE_OK		      0x80000000
 /* ioctl transfer */
@@ -288,7 +294,7 @@ struct FIRMWARE_INFO
 #define ARCMSR_DRV2IOP_DATA_READ_OK                   0x00000002
 #define ARCMSR_DRV2IOP_CDB_POSTED                     0x00000004
 #define ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED             0x00000008
-#define ARCMSR_DRV2IOP_END_OF_INTERRUPT		0x00000010
+#define ARCMSR_DRV2IOP_END_OF_INTERRUPT	              0x00000010
 
 /* data tunnel buffer between user space program and its firmware */
 /* user space data to iop 128bytes */
@@ -313,12 +319,12 @@ struct FIRMWARE_INFO
 #define ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR_MASK	0x00000008 /* When clear, the Outbound Post List FIFO Not Empty interrupt routes to the host.*/
 #define ARCMSR_HBCMU_ALL_INTMASKENABLE		0x0000000D /* disable all ISR */
 /* Host Interrupt Status */
-#define ARCMSR_HBCMU_UTILITY_A_ISR			0x00000001
+#define ARCMSR_HBCMU_UTILITY_A_ISR		0x00000001
 	/*
 	** Set when the Utility_A Interrupt bit is set in the Outbound Doorbell Register.
 	** It clears by writing a 1 to the Utility_A bit in the Outbound Doorbell Clear Register or through automatic clearing (if enabled).
 	*/
-#define ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR		0x00000004
+#define ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR	0x00000004
 	/*
 	** Set if Outbound Doorbell register bits 30:1 have a non-zero
 	** value. This bit clears only when Outbound Doorbell bits
@@ -331,7 +337,7 @@ struct FIRMWARE_INFO
 	** Register (FIFO) is not empty. It clears when the Outbound
 	** Post List FIFO is empty.
 	*/
-#define ARCMSR_HBCMU_SAS_ALL_INT			0x00000010
+#define ARCMSR_HBCMU_SAS_ALL_INT		0x00000010
 	/*
 	** This bit indicates a SAS interrupt from a source external to
 	** the PCIe core. This bit is not maskable.
@@ -340,17 +346,17 @@ struct FIRMWARE_INFO
 #define ARCMSR_HBCMU_DRV2IOP_DATA_WRITE_OK			0x00000002
 #define ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK			0x00000004
 	/*inbound message 0 ready*/
-#define ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE		0x00000008
+#define ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE			0x00000008
 	/*more than 12 request completed in a time*/
 #define ARCMSR_HBCMU_DRV2IOP_POSTQUEUE_THROTTLING		0x00000010
 #define ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK			0x00000002
 	/*outbound DATA WRITE isr door bell clear*/
-#define ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_DOORBELL_CLEAR	0x00000002
+#define ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_DOORBELL_CLEAR		0x00000002
 #define ARCMSR_HBCMU_IOP2DRV_DATA_READ_OK			0x00000004
 	/*outbound DATA READ isr door bell clear*/
-#define ARCMSR_HBCMU_IOP2DRV_DATA_READ_DOORBELL_CLEAR	0x00000004
+#define ARCMSR_HBCMU_IOP2DRV_DATA_READ_DOORBELL_CLEAR		0x00000004
 	/*outbound message 0 ready*/
-#define ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE		0x00000008
+#define ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE			0x00000008
 	/*outbound message cmd isr door bell clear*/
 #define ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR	0x00000008
 	/*ARCMSR_HBAMU_MESSAGE_FIRMWARE_OK*/
@@ -407,18 +413,43 @@ struct FIRMWARE_INFO
 #define ARCMSR_ARC1214_OUTBOUND_LIST_INTERRUPT_CLEAR	0x00000001
 /*
 *******************************************************************************
+**                SPEC. for Areca Type E adapter
+*******************************************************************************
+*/
+#define ARCMSR_SIGNATURE_1884			0x188417D3
+
+#define ARCMSR_HBEMU_DRV2IOP_DATA_WRITE_OK	0x00000002
+#define ARCMSR_HBEMU_DRV2IOP_DATA_READ_OK	0x00000004
+#define ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE	0x00000008
+
+#define ARCMSR_HBEMU_IOP2DRV_DATA_WRITE_OK	0x00000002
+#define ARCMSR_HBEMU_IOP2DRV_DATA_READ_OK	0x00000004
+#define ARCMSR_HBEMU_IOP2DRV_MESSAGE_CMD_DONE	0x00000008
+
+#define ARCMSR_HBEMU_MESSAGE_FIRMWARE_OK	0x80000000
+
+#define ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR	0x00000001
+#define ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR	0x00000008
+#define ARCMSR_HBEMU_ALL_INTMASKENABLE		0x00000009
+
+/* ARC-1884 doorbell sync */
+#define ARCMSR_HBEMU_DOORBELL_SYNC		0x100
+#define ARCMSR_ARC188X_RESET_ADAPTER		0x00000004
+#define ARCMSR_ARC1884_DiagWrite_ENABLE		0x00000080
+/*
+*******************************************************************************
 **    ARECA SCSI COMMAND DESCRIPTOR BLOCK size 0x1F8 (504)
 *******************************************************************************
 */
 struct ARCMSR_CDB
 {
-	uint8_t							Bus;
-	uint8_t							TargetID;
-	uint8_t							LUN;
-	uint8_t							Function;
-	uint8_t							CdbLength;
-	uint8_t							sgcount;
-	uint8_t							Flags;
+	uint8_t		Bus;
+	uint8_t		TargetID;
+	uint8_t		LUN;
+	uint8_t		Function;
+	uint8_t		CdbLength;
+	uint8_t		sgcount;
+	uint8_t		Flags;
 #define ARCMSR_CDB_FLAG_SGL_BSIZE          0x01
 #define ARCMSR_CDB_FLAG_BIOS               0x02
 #define ARCMSR_CDB_FLAG_WRITE              0x04
@@ -426,21 +457,21 @@ struct ARCMSR_CDB
 #define ARCMSR_CDB_FLAG_HEADQ              0x08
 #define ARCMSR_CDB_FLAG_ORDEREDQ           0x10
 
-	uint8_t							msgPages;
-	uint32_t						msgContext;
-	uint32_t						DataLength;
-	uint8_t							Cdb[16];
-	uint8_t							DeviceStatus;
+	uint8_t		msgPages;
+	uint32_t	msgContext;
+	uint32_t	DataLength;
+	uint8_t		Cdb[16];
+	uint8_t		DeviceStatus;
 #define ARCMSR_DEV_CHECK_CONDITION	    0x02
 #define ARCMSR_DEV_SELECT_TIMEOUT	    0xF0
 #define ARCMSR_DEV_ABORTED		    0xF1
 #define ARCMSR_DEV_INIT_FAIL		    0xF2
 
-	uint8_t							SenseData[15];
+	uint8_t		SenseData[15];
 	union
 	{
-		struct SG32ENTRY                sg32entry[1];
-		struct SG64ENTRY                sg64entry[1];
+		struct SG32ENTRY	sg32entry[1];
+		struct SG64ENTRY	sg64entry[1];
 	} u;
 };
 /*
@@ -480,13 +511,13 @@ struct MessageUnit_B
 	uint32_t	done_qbuffer[ARCMSR_MAX_HBB_POSTQUEUE];
 	uint32_t	postq_index;
 	uint32_t	doneq_index;
-	uint32_t		__iomem *drv2iop_doorbell;
-	uint32_t		__iomem *drv2iop_doorbell_mask;
-	uint32_t		__iomem *iop2drv_doorbell;
-	uint32_t		__iomem *iop2drv_doorbell_mask;
-	uint32_t		__iomem *message_rwbuffer;
-	uint32_t		__iomem *message_wbuffer;
-	uint32_t		__iomem *message_rbuffer;
+	uint32_t	__iomem *drv2iop_doorbell;
+	uint32_t	__iomem *drv2iop_doorbell_mask;
+	uint32_t	__iomem *iop2drv_doorbell;
+	uint32_t	__iomem *iop2drv_doorbell_mask;
+	uint32_t	__iomem *message_rwbuffer;
+	uint32_t	__iomem *message_wbuffer;
+	uint32_t	__iomem *message_rbuffer;
 };
 /*
 *********************************************************************
@@ -506,7 +537,7 @@ struct MessageUnit_C{
 	uint32_t	diagnostic_rw_data;			/*0024 0027*/
 	uint32_t	diagnostic_rw_address_low;		/*0028 002B*/
 	uint32_t	diagnostic_rw_address_high;		/*002C 002F*/
-	uint32_t	host_int_status;				/*0030 0033*/
+	uint32_t	host_int_status;			/*0030 0033*/
 	uint32_t	host_int_mask;				/*0034 0037*/
 	uint32_t	dcr_data;				/*0038 003B*/
 	uint32_t	dcr_address;				/*003C 003F*/
@@ -518,12 +549,12 @@ struct MessageUnit_C{
 	uint32_t	iop_int_mask;				/*0054 0057*/
 	uint32_t	iop_inbound_queue_port;			/*0058 005B*/
 	uint32_t	iop_outbound_queue_port;		/*005C 005F*/
-	uint32_t	inbound_free_list_index;			/*0060 0063*/
-	uint32_t	inbound_post_list_index;			/*0064 0067*/
-	uint32_t	outbound_free_list_index;			/*0068 006B*/
-	uint32_t	outbound_post_list_index;			/*006C 006F*/
+	uint32_t	inbound_free_list_index;		/*0060 0063*/
+	uint32_t	inbound_post_list_index;		/*0064 0067*/
+	uint32_t	outbound_free_list_index;		/*0068 006B*/
+	uint32_t	outbound_post_list_index;		/*006C 006F*/
 	uint32_t	inbound_doorbell_clear;			/*0070 0073*/
-	uint32_t	i2o_message_unit_control;			/*0074 0077*/
+	uint32_t	i2o_message_unit_control;		/*0074 0077*/
 	uint32_t	last_used_message_source_address_low;	/*0078 007B*/
 	uint32_t	last_used_message_source_address_high;	/*007C 007F*/
 	uint32_t	pull_mode_data_byte_count[4];		/*0080 008F*/
@@ -531,7 +562,7 @@ struct MessageUnit_C{
 	uint32_t	done_queue_not_empty_int_counter_timer;	/*0094 0097*/
 	uint32_t	utility_A_int_counter_timer;		/*0098 009B*/
 	uint32_t	outbound_doorbell;			/*009C 009F*/
-	uint32_t	outbound_doorbell_clear;			/*00A0 00A3*/
+	uint32_t	outbound_doorbell_clear;		/*00A0 00A3*/
 	uint32_t	message_source_address_index;		/*00A4 00A7*/
 	uint32_t	message_done_queue_index;		/*00A8 00AB*/
 	uint32_t	reserved0;				/*00AC 00AF*/
@@ -553,10 +584,10 @@ struct MessageUnit_C{
 	uint32_t	last_used_message_dest_address_high;	/*00EC 00EF*/
 	uint32_t	message_done_queue_base_address_low;	/*00F0 00F3*/
 	uint32_t	message_done_queue_base_address_high;	/*00F4 00F7*/
-	uint32_t	host_diagnostic;				/*00F8 00FB*/
+	uint32_t	host_diagnostic;			/*00F8 00FB*/
 	uint32_t	write_sequence;				/*00FC 00FF*/
 	uint32_t	reserved1[34];				/*0100 0187*/
-	uint32_t	reserved2[1950];				/*0188 1FFF*/
+	uint32_t	reserved2[1950];			/*0188 1FFF*/
 	uint32_t	message_wbuffer[32];			/*2000 207F*/
 	uint32_t	reserved3[32];				/*2080 20FF*/
 	uint32_t	message_rbuffer[32];			/*2100 217F*/
@@ -614,115 +645,208 @@ struct MessageUnit_D {
 	u32 __iomem *msgcode_rwbuffer;		/* 0x2200 */
 };
 /*
+*********************************************************************
+**     Messaging Unit (MU) of Type E processor(LSI)
+*********************************************************************
+*/
+struct MessageUnit_E{
+	uint32_t	iobound_doorbell;			/*0000 0003*/
+	uint32_t	write_sequence_3xxx;			/*0004 0007*/
+	uint32_t	host_diagnostic_3xxx;			/*0008 000B*/
+	uint32_t	posted_outbound_doorbell;		/*000C 000F*/
+	uint32_t	master_error_attribute;			/*0010 0013*/
+	uint32_t	master_error_address_low;		/*0014 0017*/
+	uint32_t	master_error_address_high;		/*0018 001B*/
+	uint32_t	hcb_size;				/*001C 001F*/
+	uint32_t	inbound_doorbell;			/*0020 0023*/
+	uint32_t	diagnostic_rw_data;			/*0024 0027*/
+	uint32_t	diagnostic_rw_address_low;		/*0028 002B*/
+	uint32_t	diagnostic_rw_address_high;		/*002C 002F*/
+	uint32_t	host_int_status;			/*0030 0033*/
+	uint32_t	host_int_mask;				/*0034 0037*/
+	uint32_t	dcr_data;				/*0038 003B*/
+	uint32_t	dcr_address;				/*003C 003F*/
+	uint32_t	inbound_queueport;			/*0040 0043*/
+	uint32_t	outbound_queueport;			/*0044 0047*/
+	uint32_t	hcb_pci_address_low;			/*0048 004B*/
+	uint32_t	hcb_pci_address_high;			/*004C 004F*/
+	uint32_t	iop_int_status;				/*0050 0053*/
+	uint32_t	iop_int_mask;				/*0054 0057*/
+	uint32_t	iop_inbound_queue_port;			/*0058 005B*/
+	uint32_t	iop_outbound_queue_port;		/*005C 005F*/
+	uint32_t	inbound_free_list_index;		/*0060 0063*/
+	uint32_t	inbound_post_list_index;		/*0064 0067*/
+	uint32_t	reply_post_producer_index;		/*0068 006B*/
+	uint32_t	reply_post_consumer_index;		/*006C 006F*/
+	uint32_t	inbound_doorbell_clear;			/*0070 0073*/
+	uint32_t	i2o_message_unit_control;		/*0074 0077*/
+	uint32_t	last_used_message_source_address_low;	/*0078 007B*/
+	uint32_t	last_used_message_source_address_high;	/*007C 007F*/
+	uint32_t	pull_mode_data_byte_count[4];		/*0080 008F*/
+	uint32_t	message_dest_address_index;		/*0090 0093*/
+	uint32_t	done_queue_not_empty_int_counter_timer;	/*0094 0097*/
+	uint32_t	utility_A_int_counter_timer;		/*0098 009B*/
+	uint32_t	outbound_doorbell;			/*009C 009F*/
+	uint32_t	outbound_doorbell_clear;		/*00A0 00A3*/
+	uint32_t	message_source_address_index;		/*00A4 00A7*/
+	uint32_t	message_done_queue_index;		/*00A8 00AB*/
+	uint32_t	reserved0;				/*00AC 00AF*/
+	uint32_t	inbound_msgaddr0;			/*00B0 00B3*/
+	uint32_t	inbound_msgaddr1;			/*00B4 00B7*/
+	uint32_t	outbound_msgaddr0;			/*00B8 00BB*/
+	uint32_t	outbound_msgaddr1;			/*00BC 00BF*/
+	uint32_t	inbound_queueport_low;			/*00C0 00C3*/
+	uint32_t	inbound_queueport_high;			/*00C4 00C7*/
+	uint32_t	outbound_queueport_low;			/*00C8 00CB*/
+	uint32_t	outbound_queueport_high;		/*00CC 00CF*/
+	uint32_t	iop_inbound_queue_port_low;		/*00D0 00D3*/
+	uint32_t	iop_inbound_queue_port_high;		/*00D4 00D7*/
+	uint32_t	iop_outbound_queue_port_low;		/*00D8 00DB*/
+	uint32_t	iop_outbound_queue_port_high;		/*00DC 00DF*/
+	uint32_t	message_dest_queue_port_low;		/*00E0 00E3*/
+	uint32_t	message_dest_queue_port_high;		/*00E4 00E7*/
+	uint32_t	last_used_message_dest_address_low;	/*00E8 00EB*/
+	uint32_t	last_used_message_dest_address_high;	/*00EC 00EF*/
+	uint32_t	message_done_queue_base_address_low;	/*00F0 00F3*/
+	uint32_t	message_done_queue_base_address_high;	/*00F4 00F7*/
+	uint32_t	host_diagnostic;			/*00F8 00FB*/
+	uint32_t	write_sequence;				/*00FC 00FF*/
+	uint32_t	reserved1[34];				/*0100 0187*/
+	uint32_t	reserved2[1950];			/*0188 1FFF*/
+	uint32_t	message_wbuffer[32];			/*2000 207F*/
+	uint32_t	reserved3[32];				/*2080 20FF*/
+	uint32_t	message_rbuffer[32];			/*2100 217F*/
+	uint32_t	reserved4[32];				/*2180 21FF*/
+	uint32_t	msgcode_rwbuffer[256];			/*2200 23FF*/
+};
+
+typedef struct deliver_completeQ {
+	uint16_t	cmdFlag;
+	uint16_t	cmdSMID;
+	uint16_t	cmdLMID;        // reserved (0)
+	uint16_t	cmdFlag2;       // reserved (0)
+} DeliverQ, CompletionQ, *pDeliver_Q, *pCompletion_Q;
+/*
 *******************************************************************************
 **                 Adapter Control Block
 *******************************************************************************
 */
 struct AdapterControlBlock
 {
-	uint32_t  adapter_type;                /* adapter A,B..... */
-	#define ACB_ADAPTER_TYPE_A            0x00000001	/* hba I IOP */
-	#define ACB_ADAPTER_TYPE_B            0x00000002	/* hbb M IOP */
-	#define ACB_ADAPTER_TYPE_C            0x00000004	/* hbc P IOP */
-	#define ACB_ADAPTER_TYPE_D            0x00000008	/* hbd A IOP */
-	u32				roundup_ccbsize;
-	struct pci_dev *		pdev;
-	struct Scsi_Host *		host;
-	unsigned long			vir2phy_offset;
+	uint32_t		adapter_type;		/* adapter A,B..... */
+#define ACB_ADAPTER_TYPE_A		0x00000000	/* hba I IOP */
+#define ACB_ADAPTER_TYPE_B		0x00000001	/* hbb M IOP */
+#define ACB_ADAPTER_TYPE_C		0x00000002	/* hbc L IOP */
+#define ACB_ADAPTER_TYPE_D		0x00000003	/* hbd M IOP */
+#define ACB_ADAPTER_TYPE_E		0x00000004	/* hba L IOP */
+	u32			roundup_ccbsize;
+	struct pci_dev *	pdev;
+	struct Scsi_Host *	host;
+	unsigned long		vir2phy_offset;
 	/* Offset is used in making arc cdb physical to virtual calculations */
-	uint32_t			outbound_int_enable;
-	uint32_t			cdb_phyaddr_hi32;
-	uint32_t			reg_mu_acc_handle0;
-	spinlock_t                      			eh_lock;
-	spinlock_t                      			ccblist_lock;
-	spinlock_t			postq_lock;
-	spinlock_t			doneq_lock;
-	spinlock_t			rqbuffer_lock;
-	spinlock_t			wqbuffer_lock;
+	uint32_t		outbound_int_enable;
+	uint32_t		cdb_phyaddr_hi32;
+	uint32_t		reg_mu_acc_handle0;
+	spinlock_t		eh_lock;
+	spinlock_t		ccblist_lock;
+	spinlock_t		postq_lock;
+	spinlock_t		doneq_lock;
+	spinlock_t		rqbuffer_lock;
+	spinlock_t		wqbuffer_lock;
 	union {
 		struct MessageUnit_A __iomem *pmuA;
 		struct MessageUnit_B 	*pmuB;
 		struct MessageUnit_C __iomem *pmuC;
 		struct MessageUnit_D 	*pmuD;
+		struct MessageUnit_E __iomem *pmuE;
 	};
 	/* message unit ATU inbound base address0 */
-	void __iomem *mem_base0;
-	void __iomem *mem_base1;
-	uint32_t			acb_flags;
+	void __iomem		*mem_base0;
+	void __iomem		*mem_base1;
+	uint32_t		acb_flags;
 	u16			dev_id;
-	uint8_t                   		adapter_index;
-	#define ACB_F_SCSISTOPADAPTER         	0x0001
-	#define ACB_F_MSG_STOP_BGRB     	0x0002
-	/* stop RAID background rebuild */
-	#define ACB_F_MSG_START_BGRB          	0x0004
-	/* stop RAID background rebuild */
-	#define ACB_F_IOPDATA_OVERFLOW        	0x0008
-	/* iop message data rqbuffer overflow */
-	#define ACB_F_MESSAGE_WQBUFFER_CLEARED	0x0010
-	/* message clear wqbuffer */
-	#define ACB_F_MESSAGE_RQBUFFER_CLEARED  0x0020
-	/* message clear rqbuffer */
-	#define ACB_F_MESSAGE_WQBUFFER_READED   0x0040
-	#define ACB_F_BUS_RESET               	0x0080
-	#define ACB_F_BUS_HANG_ON		0x0800/* need hardware reset bus */
+	uint8_t			adapter_index;
+#define ACB_F_SCSISTOPADAPTER         	0x0001
+#define ACB_F_MSG_STOP_BGRB     	0x0002
+/* stop RAID background rebuild */
+#define ACB_F_MSG_START_BGRB          	0x0004
+/* stop RAID background rebuild */
+#define ACB_F_IOPDATA_OVERFLOW        	0x0008
+/* iop message data rqbuffer overflow */
+#define ACB_F_MESSAGE_WQBUFFER_CLEARED	0x0010
+/* message clear wqbuffer */
+#define ACB_F_MESSAGE_RQBUFFER_CLEARED  0x0020
+/* message clear rqbuffer */
+#define ACB_F_MESSAGE_WQBUFFER_READED   0x0040
+#define ACB_F_BUS_RESET               	0x0080
+#define ACB_F_BUS_HANG_ON		0x0800/* need hardware reset bus */
 
-	#define ACB_F_IOP_INITED              	0x0100
-	/* iop init */
-	#define ACB_F_ABORT				0x0200
-	#define ACB_F_FIRMWARE_TRAP           		0x0400
-	struct CommandControlBlock *			pccb_pool[ARCMSR_MAX_FREECCB_NUM];
+#define ACB_F_IOP_INITED              	0x0100
+/* iop init */
+#define ACB_F_ABORT			0x0200
+#define ACB_F_FIRMWARE_TRAP           	0x0400
+#define ACB_F_MSG_GET_CONFIG		0x1000
+	struct CommandControlBlock *	pccb_pool[ARCMSR_MAX_FREECCB_NUM];
 	/* used for memory free */
-	struct list_head		ccb_free_list;
+	struct list_head	ccb_free_list;
 	/* head of free ccb list */
 
-	atomic_t			ccboutstandingcount;
+	atomic_t		ccboutstandingcount;
 	/*The present outstanding command number that in the IOP that
 					waiting for being handled by FW*/
 
-	void *				dma_coherent;
+	void *			dma_coherent;
 	/* dma_coherent used for memory free */
-	dma_addr_t			dma_coherent_handle;
+	dma_addr_t		dma_coherent_handle;
 	/* dma_coherent_handle used for memory free */
-	dma_addr_t				dma_coherent_handle2;
-	void				*dma_coherent2;
-	unsigned int				uncache_size;
-	uint8_t				rqbuffer[ARCMSR_MAX_QBUFFER];
+	dma_addr_t		dma_coherent_handle2;
+	void			*dma_coherent2;
+	unsigned int		uncache_size;
+	uint8_t			rqbuffer[ARCMSR_MAX_QBUFFER];
 	/* data collection buffer for read from 80331 */
-	int32_t				rqbuf_getIndex;
+	int32_t			rqbuf_getIndex;
 	/* first of read buffer  */
-	int32_t				rqbuf_putIndex;
+	int32_t			rqbuf_putIndex;
 	/* last of read buffer   */
-	uint8_t				wqbuffer[ARCMSR_MAX_QBUFFER];
+	uint8_t			wqbuffer[ARCMSR_MAX_QBUFFER];
 	/* data collection buffer for write to 80331  */
-	int32_t				wqbuf_getIndex;
+	int32_t			wqbuf_getIndex;
 	/* first of write buffer */
-	int32_t				wqbuf_putIndex;
+	int32_t			wqbuf_putIndex;
 	/* last of write buffer  */
-	uint8_t				devstate[ARCMSR_MAX_TARGETID][ARCMSR_MAX_TARGETLUN];
+	uint8_t			devstate[ARCMSR_MAX_TARGETID][ARCMSR_MAX_TARGETLUN];
 	/* id0 ..... id15, lun0...lun7 */
-#define ARECA_RAID_GONE               0x55
-#define ARECA_RAID_GOOD               0xaa
-	uint32_t			num_resets;
-	uint32_t			num_aborts;
-	uint32_t			signature;
-	uint32_t			firm_request_len;
-	uint32_t			firm_numbers_queue;
-	uint32_t			firm_sdram_size;
-	uint32_t			firm_hd_channels;
-	uint32_t                           	firm_cfg_version;	
+#define ARECA_RAID_GONE			0x55
+#define ARECA_RAID_GOOD			0xaa
+	uint32_t		num_resets;
+	uint32_t		num_aborts;
+	uint32_t		signature;
+	uint32_t		firm_request_len;
+	uint32_t		firm_numbers_queue;
+	uint32_t		firm_sdram_size;
+	uint32_t		firm_hd_channels;
+	uint32_t		firm_cfg_version;
 	char			firm_model[12];
 	char			firm_version[20];
 	char			device_map[20];			/*21,84-99*/
-	struct work_struct 		arcmsr_do_message_isr_bh;
-	struct timer_list		eternal_timer;
+	struct work_struct 	arcmsr_do_message_isr_bh;
+	struct timer_list	eternal_timer;
 	unsigned short		fw_flag;
-				#define	FW_NORMAL	0x0000
-				#define	FW_BOG		0x0001
-				#define	FW_DEADLOCK	0x0010
-	atomic_t 			rq_map_token;
-	atomic_t			ante_token_value;
-	uint32_t	maxOutstanding;
-	int		vector_count;
+#define	FW_NORMAL			0x0000
+#define	FW_BOG				0x0001
+#define	FW_DEADLOCK			0x0010
+	atomic_t 		rq_map_token;
+	atomic_t		ante_token_value;
+	uint32_t		maxOutstanding;
+	int			vector_count;
+	uint32_t		maxFreeCCB;
+	struct timer_list	refresh_timer;
+	uint32_t		doneq_index;
+	uint32_t		ccbsize;
+	uint32_t		in_doorbell;
+	uint32_t		out_doorbell;
+	uint32_t		completionQ_entry;
+	pCompletion_Q		pCompletionQ;
 };/* HW_DEVICE_EXTENSION */
 /*
 *******************************************************************************
@@ -732,29 +856,30 @@ struct AdapterControlBlock
 */
 struct CommandControlBlock{
 	/*x32:sizeof struct_CCB=(32+60)byte, x64:sizeof struct_CCB=(64+60)byte*/
-	struct list_head		list;				/*x32: 8byte, x64: 16byte*/
-	struct scsi_cmnd		*pcmd;				/*8 bytes pointer of linux scsi command */
-	struct AdapterControlBlock	*acb;				/*x32: 4byte, x64: 8byte*/
-	uint32_t			cdb_phyaddr;			/*x32: 4byte, x64: 4byte*/
-	uint32_t			arc_cdb_size;			/*x32:4byte,x64:4byte*/
-	uint16_t			ccb_flags;			/*x32: 2byte, x64: 2byte*/
-	#define			CCB_FLAG_READ			0x0000
-	#define			CCB_FLAG_WRITE		0x0001
-	#define			CCB_FLAG_ERROR		0x0002
-	#define			CCB_FLAG_FLUSHCACHE		0x0004
-	#define			CCB_FLAG_MASTER_ABORTED	0x0008	
-	uint16_t                        	startdone;			/*x32:2byte,x32:2byte*/
-	#define			ARCMSR_CCB_DONE   	        	0x0000
-	#define			ARCMSR_CCB_START		0x55AA
-	#define			ARCMSR_CCB_ABORTED		0xAA55
-	#define			ARCMSR_CCB_ILLEGAL		0xFFFF
-	#if BITS_PER_LONG == 64
+	struct list_head		list;		/*x32: 8byte, x64: 16byte*/
+	struct scsi_cmnd		*pcmd;		/*8 bytes pointer of linux scsi command */
+	struct AdapterControlBlock	*acb;		/*x32: 4byte, x64: 8byte*/
+	uint32_t			cdb_phyaddr;	/*x32: 4byte, x64: 4byte*/
+	uint32_t			arc_cdb_size;	/*x32:4byte,x64:4byte*/
+	uint16_t			ccb_flags;	/*x32: 2byte, x64: 2byte*/
+#define	CCB_FLAG_READ		0x0000
+#define	CCB_FLAG_WRITE		0x0001
+#define	CCB_FLAG_ERROR		0x0002
+#define	CCB_FLAG_FLUSHCACHE	0x0004
+#define	CCB_FLAG_MASTER_ABORTED	0x0008
+	uint16_t                        startdone;	/*x32:2byte,x32:2byte*/
+#define	ARCMSR_CCB_DONE		0x0000
+#define	ARCMSR_CCB_START	0x55AA
+#define	ARCMSR_CCB_ABORTED	0xAA55
+#define	ARCMSR_CCB_ILLEGAL	0xFFFF
+	uint32_t			smid;
+#if BITS_PER_LONG == 64
 	/*  ======================512+64 bytes========================  */
-		uint32_t                        	reserved[5];		/*24 byte*/
-	#else
+		uint32_t		reserved[4];	/*16 byte*/
+#else
 	/*  ======================512+32 bytes========================  */
-		uint32_t                        	reserved;		/*8  byte*/
-	#endif
+	//	uint32_t		reserved;	/*4  byte*/
+#endif
 	/*  =======================================================   */
 	struct ARCMSR_CDB		arcmsr_cdb;
 };
@@ -788,13 +913,13 @@ struct SENSE_DATA
 **  Outbound Interrupt Status Register - OISR
 *******************************************************************************
 */
-#define     ARCMSR_MU_OUTBOUND_INTERRUPT_STATUS_REG                 0x30
-#define     ARCMSR_MU_OUTBOUND_PCI_INT                              0x10
-#define     ARCMSR_MU_OUTBOUND_POSTQUEUE_INT                        0x08
-#define     ARCMSR_MU_OUTBOUND_DOORBELL_INT                         0x04
-#define     ARCMSR_MU_OUTBOUND_MESSAGE1_INT                         0x02
-#define     ARCMSR_MU_OUTBOUND_MESSAGE0_INT                         0x01
-#define     ARCMSR_MU_OUTBOUND_HANDLE_INT                 \
+#define	ARCMSR_MU_OUTBOUND_INTERRUPT_STATUS_REG	0x30
+#define	ARCMSR_MU_OUTBOUND_PCI_INT		0x10
+#define	ARCMSR_MU_OUTBOUND_POSTQUEUE_INT	0x08
+#define	ARCMSR_MU_OUTBOUND_DOORBELL_INT		0x04
+#define	ARCMSR_MU_OUTBOUND_MESSAGE1_INT		0x02
+#define	ARCMSR_MU_OUTBOUND_MESSAGE0_INT		0x01
+#define	ARCMSR_MU_OUTBOUND_HANDLE_INT                     \
                     (ARCMSR_MU_OUTBOUND_MESSAGE0_INT      \
                      |ARCMSR_MU_OUTBOUND_MESSAGE1_INT     \
                      |ARCMSR_MU_OUTBOUND_DOORBELL_INT     \
@@ -805,13 +930,13 @@ struct SENSE_DATA
 **  Outbound Interrupt Mask Register - OIMR
 *******************************************************************************
 */
-#define     ARCMSR_MU_OUTBOUND_INTERRUPT_MASK_REG                   0x34
-#define     ARCMSR_MU_OUTBOUND_PCI_INTMASKENABLE                    0x10
-#define     ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE              0x08
-#define     ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE               0x04
-#define     ARCMSR_MU_OUTBOUND_MESSAGE1_INTMASKENABLE               0x02
-#define     ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE               0x01
-#define     ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE                    0x1F
+#define	ARCMSR_MU_OUTBOUND_INTERRUPT_MASK_REG		0x34
+#define	ARCMSR_MU_OUTBOUND_PCI_INTMASKENABLE		0x10
+#define	ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE	0x08
+#define	ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE	0x04
+#define	ARCMSR_MU_OUTBOUND_MESSAGE1_INTMASKENABLE	0x02
+#define	ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE	0x01
+#define	ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE		0x1F
 
 extern void arcmsr_write_ioctldata2iop(struct AdapterControlBlock *);
 extern uint32_t arcmsr_Read_iop_rqbuffer_data(struct AdapterControlBlock *,
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index 21f6421536a0..75e828bd30e3 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -75,6 +75,26 @@ MODULE_DESCRIPTION("Areca ARC11xx/12xx/16xx/188x SAS/SATA RAID Controller Driver
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_VERSION(ARCMSR_DRIVER_VERSION);
 
+static int msix_enable = 1;
+module_param(msix_enable, int, S_IRUGO);
+MODULE_PARM_DESC(msix_enable, "Enable MSI-X interrupt(0 ~ 1), msix_enable=1(enable), =0(disable)");
+
+static int msi_enable = 1;
+module_param(msi_enable, int, S_IRUGO);
+MODULE_PARM_DESC(msi_enable, "Enable MSI interrupt(0 ~ 1), msi_enable=1(enable), =0(disable)");
+
+static int host_can_queue = ARCMSR_DEFAULT_OUTSTANDING_CMD;
+module_param(host_can_queue, int, S_IRUGO);
+MODULE_PARM_DESC(host_can_queue, " adapter queue depth(32 ~ 1024), default is 128");
+
+static int cmd_per_lun = ARCMSR_DEFAULT_CMD_PERLUN;
+module_param(cmd_per_lun, int, S_IRUGO);
+MODULE_PARM_DESC(cmd_per_lun, " device queue depth(1 ~ 128), default is 32");
+
+static int set_date_time = 0;
+module_param(set_date_time, int, S_IRUGO);
+MODULE_PARM_DESC(set_date_time, " send date, time to iop(0 ~ 1), set_date_time=1(enable), default(=0) is disable");
+
 #define	ARCMSR_SLEEPTIME	10
 #define	ARCMSR_RETRYCOUNT	12
 
@@ -102,19 +122,19 @@ static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb);
 static void arcmsr_hbaA_flush_cache(struct AdapterControlBlock *acb);
 static void arcmsr_hbaB_flush_cache(struct AdapterControlBlock *acb);
 static void arcmsr_request_device_map(struct timer_list *t);
-static void arcmsr_hbaA_request_device_map(struct AdapterControlBlock *acb);
-static void arcmsr_hbaB_request_device_map(struct AdapterControlBlock *acb);
-static void arcmsr_hbaC_request_device_map(struct AdapterControlBlock *acb);
 static void arcmsr_message_isr_bh_fn(struct work_struct *work);
 static bool arcmsr_get_firmware_spec(struct AdapterControlBlock *acb);
 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb);
 static void arcmsr_hbaC_message_isr(struct AdapterControlBlock *pACB);
 static void arcmsr_hbaD_message_isr(struct AdapterControlBlock *acb);
+static void arcmsr_hbaE_message_isr(struct AdapterControlBlock *acb);
+static void arcmsr_hbaE_postqueue_isr(struct AdapterControlBlock *acb);
 static void arcmsr_hardware_reset(struct AdapterControlBlock *acb);
 static const char *arcmsr_info(struct Scsi_Host *);
 static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb);
 static void arcmsr_free_irq(struct pci_dev *, struct AdapterControlBlock *);
 static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb);
+static void arcmsr_set_iop_datetime(struct timer_list *);
 static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev, int queue_depth)
 {
 	if (queue_depth > ARCMSR_MAX_CMD_PERLUN)
@@ -127,15 +147,15 @@ static struct scsi_host_template arcmsr_scsi_host_template = {
 	.name			= "Areca SAS/SATA RAID driver",
 	.info			= arcmsr_info,
 	.queuecommand		= arcmsr_queue_command,
-	.eh_abort_handler		= arcmsr_abort,
+	.eh_abort_handler	= arcmsr_abort,
 	.eh_bus_reset_handler	= arcmsr_bus_reset,
 	.bios_param		= arcmsr_bios_param,
 	.change_queue_depth	= arcmsr_adjust_disk_queue_depth,
-	.can_queue		= ARCMSR_MAX_OUTSTANDING_CMD,
-	.this_id			= ARCMSR_SCSI_INITIATOR_ID,
-	.sg_tablesize	        	= ARCMSR_DEFAULT_SG_ENTRIES, 
-	.max_sectors    	    	= ARCMSR_MAX_XFER_SECTORS_C, 
-	.cmd_per_lun		= ARCMSR_MAX_CMD_PERLUN,
+	.can_queue		= ARCMSR_DEFAULT_OUTSTANDING_CMD,
+	.this_id		= ARCMSR_SCSI_INITIATOR_ID,
+	.sg_tablesize	        = ARCMSR_DEFAULT_SG_ENTRIES,
+	.max_sectors		= ARCMSR_MAX_XFER_SECTORS_C,
+	.cmd_per_lun		= ARCMSR_DEFAULT_CMD_PERLUN,
 	.use_clustering		= ENABLE_CLUSTERING,
 	.shost_attrs		= arcmsr_host_attrs,
 	.no_write_same		= 1,
@@ -184,13 +204,15 @@ static struct pci_device_id arcmsr_device_id_table[] = {
 		.driver_data = ACB_ADAPTER_TYPE_A},
 	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1880),
 		.driver_data = ACB_ADAPTER_TYPE_C},
+	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1884),
+		.driver_data = ACB_ADAPTER_TYPE_E},
 	{0, 0}, /* Terminating entry */
 };
 MODULE_DEVICE_TABLE(pci, arcmsr_device_id_table);
 
 static struct pci_driver arcmsr_pci_driver = {
 	.name			= "arcmsr",
-	.id_table			= arcmsr_device_id_table,
+	.id_table		= arcmsr_device_id_table,
 	.probe			= arcmsr_probe,
 	.remove			= arcmsr_remove,
 	.suspend		= arcmsr_suspend,
@@ -206,7 +228,8 @@ static void arcmsr_free_mu(struct AdapterControlBlock *acb)
 {
 	switch (acb->adapter_type) {
 	case ACB_ADAPTER_TYPE_B:
-	case ACB_ADAPTER_TYPE_D: {
+	case ACB_ADAPTER_TYPE_D:
+	case ACB_ADAPTER_TYPE_E: {
 		dma_free_coherent(&acb->pdev->dev, acb->roundup_ccbsize,
 			acb->dma_coherent2, acb->dma_coherent_handle2);
 		break;
@@ -271,6 +294,20 @@ static bool arcmsr_remap_pciregion(struct AdapterControlBlock *acb)
 		acb->mem_base0 = mem_base0;
 		break;
 		}
+	case ACB_ADAPTER_TYPE_E: {
+		acb->pmuE = ioremap(pci_resource_start(pdev, 1),
+			pci_resource_len(pdev, 1));
+		if (!acb->pmuE) {
+			pr_notice("arcmsr%d: memory mapping region fail \n",
+				acb->host->host_no);
+			return false;
+		}
+		writel(0, &acb->pmuE->host_int_status); /*clear interrupt*/
+		writel(ARCMSR_HBEMU_DOORBELL_SYNC, &acb->pmuE->iobound_doorbell);	/* synchronize doorbell to 0 */
+		acb->in_doorbell = 0;
+		acb->out_doorbell = 0;
+		break;
+		}
 	}
 	return true;
 }
@@ -295,6 +332,9 @@ static void arcmsr_unmap_pciregion(struct AdapterControlBlock *acb)
 	case ACB_ADAPTER_TYPE_D:
 		iounmap(acb->mem_base0);
 		break;
+	case ACB_ADAPTER_TYPE_E:
+		iounmap(acb->pmuE);
+		break;
 	}
 }
 
@@ -408,6 +448,24 @@ static bool arcmsr_hbaD_wait_msgint_ready(struct AdapterControlBlock *pACB)
 	return false;
 }
 
+static bool arcmsr_hbaE_wait_msgint_ready(struct AdapterControlBlock *pACB)
+{
+	int i;
+	uint32_t read_doorbell;
+	struct MessageUnit_E __iomem *phbcmu = pACB->pmuE;
+
+	for (i = 0; i < 2000; i++) {
+		read_doorbell = readl(&phbcmu->iobound_doorbell);
+		if ((read_doorbell ^ pACB->in_doorbell) & ARCMSR_HBEMU_IOP2DRV_MESSAGE_CMD_DONE) {
+			writel(0, &phbcmu->host_int_status); /*clear interrupt*/
+			pACB->in_doorbell = read_doorbell;
+			return true;
+		}
+		msleep(10);
+	} /* max 20 seconds */
+	return false;
+}
+
 static void arcmsr_hbaA_flush_cache(struct AdapterControlBlock *acb)
 {
 	struct MessageUnit_A __iomem *reg = acb->pmuA;
@@ -475,6 +533,24 @@ static void arcmsr_hbaD_flush_cache(struct AdapterControlBlock *pACB)
 	} while (retry_count != 0);
 }
 
+static void arcmsr_hbaE_flush_cache(struct AdapterControlBlock *pACB)
+{
+	int retry_count = 30;
+	struct MessageUnit_E __iomem *reg = pACB->pmuE;
+
+	writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, &reg->inbound_msgaddr0);
+	pACB->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
+	writel(pACB->out_doorbell, &reg->iobound_doorbell);
+	do {
+		if (arcmsr_hbaE_wait_msgint_ready(pACB))
+			break;
+		retry_count--;
+		pr_notice("arcmsr%d: wait 'flush adapter "
+			"cache' timeout, retry count down = %d\n",
+			pACB->host->host_no, retry_count);
+	} while (retry_count != 0);
+}
+
 static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb)
 {
 	switch (acb->adapter_type) {
@@ -495,6 +571,9 @@ static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb)
 	case ACB_ADAPTER_TYPE_D:
 		arcmsr_hbaD_flush_cache(acb);
 		break;
+	case ACB_ADAPTER_TYPE_E:
+		arcmsr_hbaE_flush_cache(acb);
+		break;
 	}
 }
 
@@ -577,6 +656,23 @@ static bool arcmsr_alloc_io_queue(struct AdapterControlBlock *acb)
 		reg->msgcode_rwbuffer = MEM_BASE0(ARCMSR_ARC1214_MESSAGE_RWBUFFER);
 		}
 		break;
+	case ACB_ADAPTER_TYPE_E: {
+		uint32_t completeQ_size;
+		completeQ_size = sizeof(struct deliver_completeQ) * ARCMSR_MAX_HBE_DONEQUEUE + 128;
+		acb->roundup_ccbsize = roundup(completeQ_size, 32);
+		dma_coherent = dma_zalloc_coherent(&pdev->dev, acb->roundup_ccbsize,
+			&dma_coherent_handle, GFP_KERNEL);
+		if (!dma_coherent){
+			pr_notice("arcmsr%d: DMA allocation failed\n", acb->host->host_no);
+			return false;
+		}
+		acb->dma_coherent_handle2 = dma_coherent_handle;
+		acb->dma_coherent2 = dma_coherent;
+		acb->pCompletionQ = dma_coherent;
+		acb->completionQ_entry = acb->roundup_ccbsize / sizeof(struct deliver_completeQ);
+		acb->doneq_index = 0;
+		}
+		break;
 	default:
 		break;
 	}
@@ -610,7 +706,7 @@ static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
 	acb->host->max_sectors = max_xfer_len/512;
 	acb->host->sg_tablesize = max_sg_entrys;
 	roundup_ccbsize = roundup(sizeof(struct CommandControlBlock) + (max_sg_entrys - 1) * sizeof(struct SG64ENTRY), 32);
-	acb->uncache_size = roundup_ccbsize * ARCMSR_MAX_FREECCB_NUM;
+	acb->uncache_size = roundup_ccbsize * acb->maxFreeCCB;
 	dma_coherent = dma_alloc_coherent(&pdev->dev, acb->uncache_size, &dma_coherent_handle, GFP_KERNEL);
 	if(!dma_coherent){
 		printk(KERN_NOTICE "arcmsr%d: dma_alloc_coherent got error\n", acb->host->host_no);
@@ -619,9 +715,10 @@ static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
 	acb->dma_coherent = dma_coherent;
 	acb->dma_coherent_handle = dma_coherent_handle;
 	memset(dma_coherent, 0, acb->uncache_size);
+	acb->ccbsize = roundup_ccbsize;
 	ccb_tmp = dma_coherent;
 	acb->vir2phy_offset = (unsigned long)dma_coherent - (unsigned long)dma_coherent_handle;
-	for(i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++){
+	for(i = 0; i < acb->maxFreeCCB; i++){
 		cdb_phyaddr = dma_coherent_handle + offsetof(struct CommandControlBlock, arcmsr_cdb);
 		switch (acb->adapter_type) {
 		case ACB_ADAPTER_TYPE_A:
@@ -630,11 +727,13 @@ static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
 			break;
 		case ACB_ADAPTER_TYPE_C:
 		case ACB_ADAPTER_TYPE_D:
+		case ACB_ADAPTER_TYPE_E:
 			ccb_tmp->cdb_phyaddr = cdb_phyaddr;
 			break;
 		}
 		acb->pccb_pool[i] = ccb_tmp;
 		ccb_tmp->acb = acb;
+		ccb_tmp->smid = (u32)i << 16;
 		INIT_LIST_HEAD(&ccb_tmp->list);
 		list_add_tail(&ccb_tmp->list, &acb->ccb_free_list);
 		ccb_tmp = (struct CommandControlBlock *)((unsigned long)ccb_tmp + roundup_ccbsize);
@@ -654,6 +753,7 @@ static void arcmsr_message_isr_bh_fn(struct work_struct *work)
 	struct scsi_device *psdev;
 	char diff, temp;
 
+	acb->acb_flags &= ~ACB_F_MSG_GET_CONFIG;
 	switch (acb->adapter_type) {
 	case ACB_ADAPTER_TYPE_A: {
 		struct MessageUnit_A __iomem *reg  = acb->pmuA;
@@ -683,6 +783,13 @@ static void arcmsr_message_isr_bh_fn(struct work_struct *work)
 		devicemap = (char __iomem *)(&reg->msgcode_rwbuffer[21]);
 		break;
 	}
+	case ACB_ADAPTER_TYPE_E: {
+		struct MessageUnit_E __iomem *reg  = acb->pmuE;
+
+		signature = (uint32_t __iomem *)(&reg->msgcode_rwbuffer[0]);
+		devicemap = (char __iomem *)(&reg->msgcode_rwbuffer[21]);
+		break;
+		}
 	}
 	atomic_inc(&acb->rq_map_token);
 	if (readl(signature) != ARCMSR_SIGNATURE_GET_CONFIG)
@@ -723,17 +830,26 @@ arcmsr_request_irq(struct pci_dev *pdev, struct AdapterControlBlock *acb)
 	unsigned long flags;
 	int nvec, i;
 
+	if (msix_enable == 0)
+		goto msi_int0;
 	nvec = pci_alloc_irq_vectors(pdev, 1, ARCMST_NUM_MSIX_VECTORS,
 			PCI_IRQ_MSIX);
 	if (nvec > 0) {
 		pr_info("arcmsr%d: msi-x enabled\n", acb->host->host_no);
 		flags = 0;
 	} else {
-		nvec = pci_alloc_irq_vectors(pdev, 1, 1,
-				PCI_IRQ_MSI | PCI_IRQ_LEGACY);
+msi_int0:
+		if (msi_enable == 1) {
+			nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI);
+			if (nvec == 1) {
+				dev_info(&pdev->dev, "msi enabled\n");
+				goto msi_int1;
+			}
+		}
+		nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_LEGACY);
 		if (nvec < 1)
 			return FAILED;
-
+msi_int1:
 		flags = IRQF_SHARED;
 	}
 
@@ -755,6 +871,24 @@ out_free_irq:
 	return FAILED;
 }
 
+static void arcmsr_init_get_devmap_timer(struct AdapterControlBlock *pacb)
+{
+	INIT_WORK(&pacb->arcmsr_do_message_isr_bh, arcmsr_message_isr_bh_fn);
+	atomic_set(&pacb->rq_map_token, 16);
+	atomic_set(&pacb->ante_token_value, 16);
+	pacb->fw_flag = FW_NORMAL;
+	timer_setup(&pacb->eternal_timer, arcmsr_request_device_map, 0);
+	pacb->eternal_timer.expires = jiffies + msecs_to_jiffies(6 * HZ);
+	add_timer(&pacb->eternal_timer);
+}
+
+static void arcmsr_init_set_datetime_timer(struct AdapterControlBlock *pacb)
+{
+	timer_setup(&pacb->refresh_timer, arcmsr_set_iop_datetime, 0);
+	pacb->refresh_timer.expires = jiffies + msecs_to_jiffies(60 * 1000);
+	add_timer(&pacb->refresh_timer);
+}
+
 static int arcmsr_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
 	struct Scsi_Host *host;
@@ -789,8 +923,12 @@ static int arcmsr_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	host->max_lun = ARCMSR_MAX_TARGETLUN;
 	host->max_id = ARCMSR_MAX_TARGETID;		/*16:8*/
 	host->max_cmd_len = 16;	 			/*this is issue of 64bit LBA ,over 2T byte*/
-	host->can_queue = ARCMSR_MAX_OUTSTANDING_CMD;
-	host->cmd_per_lun = ARCMSR_MAX_CMD_PERLUN;	    
+	if ((host_can_queue < ARCMSR_MIN_OUTSTANDING_CMD) || (host_can_queue > ARCMSR_MAX_OUTSTANDING_CMD))
+		host_can_queue = ARCMSR_DEFAULT_OUTSTANDING_CMD;
+	host->can_queue = host_can_queue;	/* max simultaneous cmds */
+	if ((cmd_per_lun < ARCMSR_MIN_CMD_PERLUN) || (cmd_per_lun > ARCMSR_MAX_CMD_PERLUN))
+		cmd_per_lun = ARCMSR_DEFAULT_CMD_PERLUN;
+	host->cmd_per_lun = cmd_per_lun;
 	host->this_id = ARCMSR_SCSI_INITIATOR_ID;
 	host->unique_id = (bus << 8) | dev_fun;
 	pci_set_drvdata(pdev, host);
@@ -833,18 +971,16 @@ static int arcmsr_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	if (arcmsr_request_irq(pdev, acb) == FAILED)
 		goto scsi_host_remove;
 	arcmsr_iop_init(acb);
-	INIT_WORK(&acb->arcmsr_do_message_isr_bh, arcmsr_message_isr_bh_fn);
-	atomic_set(&acb->rq_map_token, 16);
-	atomic_set(&acb->ante_token_value, 16);
-	acb->fw_flag = FW_NORMAL;
-	timer_setup(&acb->eternal_timer, arcmsr_request_device_map, 0);
-	acb->eternal_timer.expires = jiffies + msecs_to_jiffies(6 * HZ);
-	add_timer(&acb->eternal_timer);
+	arcmsr_init_get_devmap_timer(acb);
+	if (set_date_time)
+		arcmsr_init_set_datetime_timer(acb);
 	if(arcmsr_alloc_sysfs_attr(acb))
 		goto out_free_sysfs;
 	scsi_scan_host(host);
 	return 0;
 out_free_sysfs:
+	if (set_date_time)
+		del_timer_sync(&acb->refresh_timer);
 	del_timer_sync(&acb->eternal_timer);
 	flush_work(&acb->arcmsr_do_message_isr_bh);
 	arcmsr_stop_adapter_bgrb(acb);
@@ -887,6 +1023,8 @@ static int arcmsr_suspend(struct pci_dev *pdev, pm_message_t state)
 	intmask_org = arcmsr_disable_outbound_ints(acb);
 	arcmsr_free_irq(pdev, acb);
 	del_timer_sync(&acb->eternal_timer);
+	if (set_date_time)
+		del_timer_sync(&acb->refresh_timer);
 	flush_work(&acb->arcmsr_do_message_isr_bh);
 	arcmsr_stop_adapter_bgrb(acb);
 	arcmsr_flush_adapter_cache(acb);
@@ -924,13 +1062,9 @@ static int arcmsr_resume(struct pci_dev *pdev)
 	if (arcmsr_request_irq(pdev, acb) == FAILED)
 		goto controller_stop;
 	arcmsr_iop_init(acb);
-	INIT_WORK(&acb->arcmsr_do_message_isr_bh, arcmsr_message_isr_bh_fn);
-	atomic_set(&acb->rq_map_token, 16);
-	atomic_set(&acb->ante_token_value, 16);
-	acb->fw_flag = FW_NORMAL;
-	timer_setup(&acb->eternal_timer, arcmsr_request_device_map, 0);
-	acb->eternal_timer.expires = jiffies + msecs_to_jiffies(6 * HZ);
-	add_timer(&acb->eternal_timer);
+	arcmsr_init_get_devmap_timer(acb);
+	if (set_date_time)
+		arcmsr_init_set_datetime_timer(acb);
 	return 0;
 controller_stop:
 	arcmsr_stop_adapter_bgrb(acb);
@@ -998,6 +1132,21 @@ static uint8_t arcmsr_hbaD_abort_allcmd(struct AdapterControlBlock *pACB)
 	return true;
 }
 
+static uint8_t arcmsr_hbaE_abort_allcmd(struct AdapterControlBlock *pACB)
+{
+	struct MessageUnit_E __iomem *reg = pACB->pmuE;
+
+	writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, &reg->inbound_msgaddr0);
+	pACB->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
+	writel(pACB->out_doorbell, &reg->iobound_doorbell);
+	if (!arcmsr_hbaE_wait_msgint_ready(pACB)) {
+		pr_notice("arcmsr%d: wait 'abort all outstanding "
+			"command' timeout\n", pACB->host->host_no);
+		return false;
+	}
+	return true;
+}
+
 static uint8_t arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
 {
 	uint8_t rtnval = 0;
@@ -1020,6 +1169,9 @@ static uint8_t arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
 	case ACB_ADAPTER_TYPE_D:
 		rtnval = arcmsr_hbaD_abort_allcmd(acb);
 		break;
+	case ACB_ADAPTER_TYPE_E:
+		rtnval = arcmsr_hbaE_abort_allcmd(acb);
+		break;
 	}
 	return rtnval;
 }
@@ -1050,7 +1202,7 @@ static void arcmsr_report_sense_info(struct CommandControlBlock *ccb)
 
 	struct scsi_cmnd *pcmd = ccb->pcmd;
 	struct SENSE_DATA *sensebuffer = (struct SENSE_DATA *)pcmd->sense_buffer;
-	pcmd->result = DID_OK << 16;
+	pcmd->result = (DID_OK << 16) | (CHECK_CONDITION << 1);
 	if (sensebuffer) {
 		int sense_data_length =
 			sizeof(struct SENSE_DATA) < SCSI_SENSE_BUFFERSIZE
@@ -1059,6 +1211,7 @@ static void arcmsr_report_sense_info(struct CommandControlBlock *ccb)
 		memcpy(sensebuffer, ccb->arcmsr_cdb.SenseData, sense_data_length);
 		sensebuffer->ErrorCode = SCSI_SENSE_CURRENT_ERRORS;
 		sensebuffer->Valid = 1;
+		pcmd->result |= (DRIVER_SENSE << 24);
 	}
 }
 
@@ -1092,6 +1245,13 @@ static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb)
 		writel(ARCMSR_ARC1214_ALL_INT_DISABLE, reg->pcief0_int_enable);
 		}
 		break;
+	case ACB_ADAPTER_TYPE_E: {
+		struct MessageUnit_E __iomem *reg = acb->pmuE;
+		orig_mask = readl(&reg->host_int_mask);
+		writel(orig_mask | ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR | ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR, &reg->host_int_mask);
+		readl(&reg->host_int_mask); /* Dummy readl to force pci flush */
+		}
+		break;
 	}
 	return orig_mask;
 }
@@ -1196,7 +1356,7 @@ static void arcmsr_done4abort_postqueue(struct AdapterControlBlock *acb)
 		/*clear and abort all outbound posted Q*/
 		writel(outbound_intstatus, &reg->outbound_intstatus);/*clear interrupt*/
 		while(((flag_ccb = readl(&reg->outbound_queueport)) != 0xFFFFFFFF)
-				&& (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) {
+				&& (i++ < acb->maxOutstanding)) {
 			pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset + (flag_ccb << 5));/*frame must be 32 bytes aligned*/
 			pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
 			error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
@@ -1226,7 +1386,7 @@ static void arcmsr_done4abort_postqueue(struct AdapterControlBlock *acb)
 		break;
 	case ACB_ADAPTER_TYPE_C: {
 		struct MessageUnit_C __iomem *reg = acb->pmuC;
-		while ((readl(&reg->host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) && (i++ < ARCMSR_MAX_OUTSTANDING_CMD)) {
+		while ((readl(&reg->host_int_status) & ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR) && (i++ < acb->maxOutstanding)) {
 			/*need to do*/
 			flag_ccb = readl(&reg->outbound_queueport_low);
 			ccb_cdb_phy = (flag_ccb & 0xFFFFFFF0);
@@ -1280,6 +1440,9 @@ static void arcmsr_done4abort_postqueue(struct AdapterControlBlock *acb)
 		pmu->doneq_index = 0x40FF;
 		}
 		break;
+	case ACB_ADAPTER_TYPE_E:
+		arcmsr_hbaE_postqueue_isr(acb);
+		break;
 	}
 }
 
@@ -1293,13 +1456,15 @@ static void arcmsr_remove(struct pci_dev *pdev)
 	scsi_remove_host(host);
 	flush_work(&acb->arcmsr_do_message_isr_bh);
 	del_timer_sync(&acb->eternal_timer);
+	if (set_date_time)
+		del_timer_sync(&acb->refresh_timer);
 	arcmsr_disable_outbound_ints(acb);
 	arcmsr_stop_adapter_bgrb(acb);
 	arcmsr_flush_adapter_cache(acb);	
 	acb->acb_flags |= ACB_F_SCSISTOPADAPTER;
 	acb->acb_flags &= ~ACB_F_IOP_INITED;
 
-	for (poll_count = 0; poll_count < ARCMSR_MAX_OUTSTANDING_CMD; poll_count++){
+	for (poll_count = 0; poll_count < acb->maxOutstanding; poll_count++){
 		if (!atomic_read(&acb->ccboutstandingcount))
 			break;
 		arcmsr_interrupt(acb);/* FIXME: need spinlock */
@@ -1311,7 +1476,7 @@ static void arcmsr_remove(struct pci_dev *pdev)
 
 		arcmsr_abort_allcmd(acb);
 		arcmsr_done4abort_postqueue(acb);
-		for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
+		for (i = 0; i < acb->maxFreeCCB; i++) {
 			struct CommandControlBlock *ccb = acb->pccb_pool[i];
 			if (ccb->startdone == ARCMSR_CCB_START) {
 				ccb->startdone = ARCMSR_CCB_ABORTED;
@@ -1335,6 +1500,8 @@ static void arcmsr_shutdown(struct pci_dev *pdev)
 	struct AdapterControlBlock *acb =
 		(struct AdapterControlBlock *)host->hostdata;
 	del_timer_sync(&acb->eternal_timer);
+	if (set_date_time)
+		del_timer_sync(&acb->refresh_timer);
 	arcmsr_disable_outbound_ints(acb);
 	arcmsr_free_irq(pdev, acb);
 	flush_work(&acb->arcmsr_do_message_isr_bh);
@@ -1396,6 +1563,13 @@ static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb,
 		writel(intmask_org | mask, reg->pcief0_int_enable);
 		break;
 		}
+	case ACB_ADAPTER_TYPE_E: {
+		struct MessageUnit_E __iomem *reg = acb->pmuE;
+
+		mask = ~(ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR | ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR);
+		writel(intmask_org & mask, &reg->host_int_mask);
+		break;
+		}
 	}
 }
 
@@ -1527,6 +1701,16 @@ static void arcmsr_post_ccb(struct AdapterControlBlock *acb, struct CommandContr
 		spin_unlock_irqrestore(&acb->postq_lock, flags);
 		break;
 		}
+	case ACB_ADAPTER_TYPE_E: {
+		struct MessageUnit_E __iomem *pmu = acb->pmuE;
+		u32 ccb_post_stamp, arc_cdb_size;
+
+		arc_cdb_size = (ccb->arc_cdb_size > 0x300) ? 0x300 : ccb->arc_cdb_size;
+		ccb_post_stamp = (ccb->smid | ((arc_cdb_size - 1) >> 6));
+		writel(0, &pmu->inbound_queueport_high);
+		writel(ccb_post_stamp, &pmu->inbound_queueport_low);
+		break;
+		}
 	}
 }
 
@@ -1580,6 +1764,20 @@ static void arcmsr_hbaD_stop_bgrb(struct AdapterControlBlock *pACB)
 			"timeout\n", pACB->host->host_no);
 }
 
+static void arcmsr_hbaE_stop_bgrb(struct AdapterControlBlock *pACB)
+{
+	struct MessageUnit_E __iomem *reg = pACB->pmuE;
+
+	pACB->acb_flags &= ~ACB_F_MSG_START_BGRB;
+	writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, &reg->inbound_msgaddr0);
+	pACB->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
+	writel(pACB->out_doorbell, &reg->iobound_doorbell);
+	if (!arcmsr_hbaE_wait_msgint_ready(pACB)) {
+		pr_notice("arcmsr%d: wait 'stop adapter background rebulid' "
+			"timeout\n", pACB->host->host_no);
+	}
+}
+
 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb)
 {
 	switch (acb->adapter_type) {
@@ -1599,6 +1797,9 @@ static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb)
 	case ACB_ADAPTER_TYPE_D:
 		arcmsr_hbaD_stop_bgrb(acb);
 		break;
+	case ACB_ADAPTER_TYPE_E:
+		arcmsr_hbaE_stop_bgrb(acb);
+		break;
 	}
 }
 
@@ -1633,6 +1834,12 @@ static void arcmsr_iop_message_read(struct AdapterControlBlock *acb)
 			reg->inbound_doorbell);
 		}
 		break;
+	case ACB_ADAPTER_TYPE_E: {
+		struct MessageUnit_E __iomem *reg = acb->pmuE;
+		acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_READ_OK;
+		writel(acb->out_doorbell, &reg->iobound_doorbell);
+		}
+		break;
 	}
 }
 
@@ -1673,6 +1880,12 @@ static void arcmsr_iop_message_wrote(struct AdapterControlBlock *acb)
 			reg->inbound_doorbell);
 		}
 		break;
+	case ACB_ADAPTER_TYPE_E: {
+		struct MessageUnit_E __iomem *reg = acb->pmuE;
+		acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_WRITE_OK;
+		writel(acb->out_doorbell, &reg->iobound_doorbell);
+		}
+		break;
 	}
 }
 
@@ -1702,6 +1915,11 @@ struct QBUFFER __iomem *arcmsr_get_iop_rqbuffer(struct AdapterControlBlock *acb)
 		qbuffer = (struct QBUFFER __iomem *)reg->message_rbuffer;
 		}
 		break;
+	case ACB_ADAPTER_TYPE_E: {
+		struct MessageUnit_E __iomem *reg = acb->pmuE;
+		qbuffer = (struct QBUFFER __iomem *)&reg->message_rbuffer;
+		}
+		break;
 	}
 	return qbuffer;
 }
@@ -1732,6 +1950,11 @@ static struct QBUFFER __iomem *arcmsr_get_iop_wqbuffer(struct AdapterControlBloc
 		pqbuffer = (struct QBUFFER __iomem *)reg->message_wbuffer;
 		}
 		break;
+	case ACB_ADAPTER_TYPE_E: {
+		struct MessageUnit_E __iomem *reg = acb->pmuE;
+		pqbuffer = (struct QBUFFER __iomem *)&reg->message_wbuffer;
+		}
+		break;
 	}
 	return pqbuffer;
 }
@@ -1785,7 +2008,7 @@ arcmsr_Read_iop_rqbuffer_data(struct AdapterControlBlock *acb,
 	uint8_t __iomem *iop_data;
 	uint32_t iop_len;
 
-	if (acb->adapter_type & (ACB_ADAPTER_TYPE_C | ACB_ADAPTER_TYPE_D))
+	if (acb->adapter_type > ACB_ADAPTER_TYPE_B)
 		return arcmsr_Read_iop_rqbuffer_in_DWORD(acb, prbuffer);
 	iop_data = (uint8_t __iomem *)prbuffer->data;
 	iop_len = readl(&prbuffer->data_len);
@@ -1871,7 +2094,7 @@ arcmsr_write_ioctldata2iop(struct AdapterControlBlock *acb)
 	uint8_t __iomem *iop_data;
 	int32_t allxfer_len = 0;
 
-	if (acb->adapter_type & (ACB_ADAPTER_TYPE_C | ACB_ADAPTER_TYPE_D)) {
+	if (acb->adapter_type > ACB_ADAPTER_TYPE_B) {
 		arcmsr_write_ioctldata2iop_in_DWORD(acb);
 		return;
 	}
@@ -1968,6 +2191,33 @@ static void arcmsr_hbaD_doorbell_isr(struct AdapterControlBlock *pACB)
 		| ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE));
 }
 
+static void arcmsr_hbaE_doorbell_isr(struct AdapterControlBlock *pACB)
+{
+	uint32_t outbound_doorbell, in_doorbell, tmp;
+	struct MessageUnit_E __iomem *reg = pACB->pmuE;
+
+	in_doorbell = readl(&reg->iobound_doorbell);
+	outbound_doorbell = in_doorbell ^ pACB->in_doorbell;
+	do {
+		writel(0, &reg->host_int_status); /* clear interrupt */
+		if (outbound_doorbell & ARCMSR_HBEMU_IOP2DRV_DATA_WRITE_OK) {
+			arcmsr_iop2drv_data_wrote_handle(pACB);
+		}
+		if (outbound_doorbell & ARCMSR_HBEMU_IOP2DRV_DATA_READ_OK) {
+			arcmsr_iop2drv_data_read_handle(pACB);
+		}
+		if (outbound_doorbell & ARCMSR_HBEMU_IOP2DRV_MESSAGE_CMD_DONE) {
+			arcmsr_hbaE_message_isr(pACB);
+		}
+		tmp = in_doorbell;
+		in_doorbell = readl(&reg->iobound_doorbell);
+		outbound_doorbell = tmp ^ in_doorbell;
+	} while (outbound_doorbell & (ARCMSR_HBEMU_IOP2DRV_DATA_WRITE_OK
+		| ARCMSR_HBEMU_IOP2DRV_DATA_READ_OK
+		| ARCMSR_HBEMU_IOP2DRV_MESSAGE_CMD_DONE));
+	pACB->in_doorbell = in_doorbell;
+}
+
 static void arcmsr_hbaA_postqueue_isr(struct AdapterControlBlock *acb)
 {
 	uint32_t flag_ccb;
@@ -2077,6 +2327,33 @@ static void arcmsr_hbaD_postqueue_isr(struct AdapterControlBlock *acb)
 	spin_unlock_irqrestore(&acb->doneq_lock, flags);
 }
 
+static void arcmsr_hbaE_postqueue_isr(struct AdapterControlBlock *acb)
+{
+	uint32_t doneq_index;
+	uint16_t cmdSMID;
+	int error;
+	struct MessageUnit_E __iomem *pmu;
+	struct CommandControlBlock *ccb;
+	unsigned long flags;
+
+	spin_lock_irqsave(&acb->doneq_lock, flags);
+	doneq_index = acb->doneq_index;
+	pmu = acb->pmuE;
+	while ((readl(&pmu->reply_post_producer_index) & 0xFFFF) != doneq_index) {
+		cmdSMID = acb->pCompletionQ[doneq_index].cmdSMID;
+		ccb = acb->pccb_pool[cmdSMID];
+		error = (acb->pCompletionQ[doneq_index].cmdFlag
+			& ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
+		arcmsr_drain_donequeue(acb, ccb, error);
+		doneq_index++;
+		if (doneq_index >= acb->completionQ_entry)
+			doneq_index = 0;
+	}
+	acb->doneq_index = doneq_index;
+	writel(doneq_index, &pmu->reply_post_consumer_index);
+	spin_unlock_irqrestore(&acb->doneq_lock, flags);
+}
+
 /*
 **********************************************************************************
 ** Handle a message interrupt
@@ -2090,7 +2367,8 @@ static void arcmsr_hbaA_message_isr(struct AdapterControlBlock *acb)
 	struct MessageUnit_A __iomem *reg  = acb->pmuA;
 	/*clear interrupt and message state*/
 	writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT, &reg->outbound_intstatus);
-	schedule_work(&acb->arcmsr_do_message_isr_bh);
+	if (acb->acb_flags & ACB_F_MSG_GET_CONFIG)
+		schedule_work(&acb->arcmsr_do_message_isr_bh);
 }
 static void arcmsr_hbaB_message_isr(struct AdapterControlBlock *acb)
 {
@@ -2098,7 +2376,8 @@ static void arcmsr_hbaB_message_isr(struct AdapterControlBlock *acb)
 
 	/*clear interrupt and message state*/
 	writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
-	schedule_work(&acb->arcmsr_do_message_isr_bh);
+	if (acb->acb_flags & ACB_F_MSG_GET_CONFIG)
+		schedule_work(&acb->arcmsr_do_message_isr_bh);
 }
 /*
 **********************************************************************************
@@ -2114,7 +2393,8 @@ static void arcmsr_hbaC_message_isr(struct AdapterControlBlock *acb)
 	struct MessageUnit_C __iomem *reg  = acb->pmuC;
 	/*clear interrupt and message state*/
 	writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, &reg->outbound_doorbell_clear);
-	schedule_work(&acb->arcmsr_do_message_isr_bh);
+	if (acb->acb_flags & ACB_F_MSG_GET_CONFIG)
+		schedule_work(&acb->arcmsr_do_message_isr_bh);
 }
 
 static void arcmsr_hbaD_message_isr(struct AdapterControlBlock *acb)
@@ -2123,7 +2403,17 @@ static void arcmsr_hbaD_message_isr(struct AdapterControlBlock *acb)
 
 	writel(ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE, reg->outbound_doorbell);
 	readl(reg->outbound_doorbell);
-	schedule_work(&acb->arcmsr_do_message_isr_bh);
+	if (acb->acb_flags & ACB_F_MSG_GET_CONFIG)
+		schedule_work(&acb->arcmsr_do_message_isr_bh);
+}
+
+static void arcmsr_hbaE_message_isr(struct AdapterControlBlock *acb)
+{
+	struct MessageUnit_E __iomem *reg  = acb->pmuE;
+
+	writel(0, &reg->host_int_status);
+	if (acb->acb_flags & ACB_F_MSG_GET_CONFIG)
+		schedule_work(&acb->arcmsr_do_message_isr_bh);
 }
 
 static int arcmsr_hbaA_handle_isr(struct AdapterControlBlock *acb)
@@ -2229,6 +2519,31 @@ static irqreturn_t arcmsr_hbaD_handle_isr(struct AdapterControlBlock *pACB)
 	return IRQ_HANDLED;
 }
 
+static irqreturn_t arcmsr_hbaE_handle_isr(struct AdapterControlBlock *pACB)
+{
+	uint32_t host_interrupt_status;
+	struct MessageUnit_E __iomem *pmu = pACB->pmuE;
+
+	host_interrupt_status = readl(&pmu->host_int_status) &
+		(ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR |
+		ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR);
+	if (!host_interrupt_status)
+		return IRQ_NONE;
+	do {
+		/* MU ioctl transfer doorbell interrupts*/
+		if (host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR) {
+			arcmsr_hbaE_doorbell_isr(pACB);
+		}
+		/* MU post queue interrupts*/
+		if (host_interrupt_status & ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR) {
+			arcmsr_hbaE_postqueue_isr(pACB);
+		}
+		host_interrupt_status = readl(&pmu->host_int_status);
+	} while (host_interrupt_status & (ARCMSR_HBEMU_OUTBOUND_POSTQUEUE_ISR |
+		ARCMSR_HBEMU_OUTBOUND_DOORBELL_ISR));
+	return IRQ_HANDLED;
+}
+
 static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb)
 {
 	switch (acb->adapter_type) {
@@ -2242,6 +2557,8 @@ static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb)
 		return arcmsr_hbaC_handle_isr(acb);
 	case ACB_ADAPTER_TYPE_D:
 		return arcmsr_hbaD_handle_isr(acb);
+	case ACB_ADAPTER_TYPE_E:
+		return arcmsr_hbaE_handle_isr(acb);
 	default:
 		return IRQ_NONE;
 	}
@@ -2636,74 +2953,66 @@ static int arcmsr_queue_command_lck(struct scsi_cmnd *cmd,
 
 static DEF_SCSI_QCMD(arcmsr_queue_command)
 
-static bool arcmsr_hbaA_get_config(struct AdapterControlBlock *acb)
+static void arcmsr_get_adapter_config(struct AdapterControlBlock *pACB, uint32_t *rwbuffer)
 {
-	struct MessageUnit_A __iomem *reg = acb->pmuA;
-	char *acb_firm_model = acb->firm_model;
-	char *acb_firm_version = acb->firm_version;
-	char *acb_device_map = acb->device_map;
-	char __iomem *iop_firm_model = (char __iomem *)(&reg->message_rwbuffer[15]);
-	char __iomem *iop_firm_version = (char __iomem *)(&reg->message_rwbuffer[17]);
-	char __iomem *iop_device_map = (char __iomem *)(&reg->message_rwbuffer[21]);
 	int count;
-	writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
-	if (!arcmsr_hbaA_wait_msgint_ready(acb)) {
-		printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
-			miscellaneous data' timeout \n", acb->host->host_no);
-		return false;
-	}
-	count = 8;
-	while (count){
-		*acb_firm_model = readb(iop_firm_model);
+	uint32_t *acb_firm_model = (uint32_t *)pACB->firm_model;
+	uint32_t *acb_firm_version = (uint32_t *)pACB->firm_version;
+	uint32_t *acb_device_map = (uint32_t *)pACB->device_map;
+	uint32_t *firm_model = &rwbuffer[15];
+	uint32_t *firm_version = &rwbuffer[17];
+	uint32_t *device_map = &rwbuffer[21];
+
+	count = 2;
+	while (count) {
+		*acb_firm_model = readl(firm_model);
 		acb_firm_model++;
-		iop_firm_model++;
+		firm_model++;
 		count--;
 	}
-
-	count = 16;
-	while (count){
-		*acb_firm_version = readb(iop_firm_version);
+	count = 4;
+	while (count) {
+		*acb_firm_version = readl(firm_version);
 		acb_firm_version++;
-		iop_firm_version++;
+		firm_version++;
 		count--;
 	}
-
-	count=16;
-	while(count){
-		*acb_device_map = readb(iop_device_map);
+	count = 4;
+	while (count) {
+		*acb_device_map = readl(device_map);
 		acb_device_map++;
-		iop_device_map++;
+		device_map++;
 		count--;
 	}
+	pACB->signature = readl(&rwbuffer[0]);
+	pACB->firm_request_len = readl(&rwbuffer[1]);
+	pACB->firm_numbers_queue = readl(&rwbuffer[2]);
+	pACB->firm_sdram_size = readl(&rwbuffer[3]);
+	pACB->firm_hd_channels = readl(&rwbuffer[4]);
+	pACB->firm_cfg_version = readl(&rwbuffer[25]);
 	pr_notice("Areca RAID Controller%d: Model %s, F/W %s\n",
-		acb->host->host_no,
-		acb->firm_model,
-		acb->firm_version);
-	acb->signature = readl(&reg->message_rwbuffer[0]);
-	acb->firm_request_len = readl(&reg->message_rwbuffer[1]);
-	acb->firm_numbers_queue = readl(&reg->message_rwbuffer[2]);
-	acb->firm_sdram_size = readl(&reg->message_rwbuffer[3]);
-	acb->firm_hd_channels = readl(&reg->message_rwbuffer[4]);
-	acb->firm_cfg_version = readl(&reg->message_rwbuffer[25]);  /*firm_cfg_version,25,100-103*/
+		pACB->host->host_no,
+		pACB->firm_model,
+		pACB->firm_version);
+}
+
+static bool arcmsr_hbaA_get_config(struct AdapterControlBlock *acb)
+{
+	struct MessageUnit_A __iomem *reg = acb->pmuA;
+
+	arcmsr_wait_firmware_ready(acb);
+	writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
+	if (!arcmsr_hbaA_wait_msgint_ready(acb)) {
+		printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
+			miscellaneous data' timeout \n", acb->host->host_no);
+		return false;
+	}
+	arcmsr_get_adapter_config(acb, reg->message_rwbuffer);
 	return true;
 }
 static bool arcmsr_hbaB_get_config(struct AdapterControlBlock *acb)
 {
 	struct MessageUnit_B *reg = acb->pmuB;
-	char *acb_firm_model = acb->firm_model;
-	char *acb_firm_version = acb->firm_version;
-	char *acb_device_map = acb->device_map;
-	char __iomem *iop_firm_model;
-	/*firm_model,15,60-67*/
-	char __iomem *iop_firm_version;
-	/*firm_version,17,68-83*/
-	char __iomem *iop_device_map;
-	/*firm_version,21,84-99*/
-	int count;
-
-	iop_firm_model = (char __iomem *)(&reg->message_rwbuffer[15]);	/*firm_model,15,60-67*/
-	iop_firm_version = (char __iomem *)(&reg->message_rwbuffer[17]);	/*firm_version,17,68-83*/
-	iop_device_map = (char __iomem *)(&reg->message_rwbuffer[21]);	/*firm_version,21,84-99*/
 
 	arcmsr_wait_firmware_ready(acb);
 	writel(ARCMSR_MESSAGE_START_DRIVER_MODE, reg->drv2iop_doorbell);
@@ -2717,127 +3026,43 @@ static bool arcmsr_hbaB_get_config(struct AdapterControlBlock *acb)
 			miscellaneous data' timeout \n", acb->host->host_no);
 		return false;
 	}
-	count = 8;
-	while (count){
-		*acb_firm_model = readb(iop_firm_model);
-		acb_firm_model++;
-		iop_firm_model++;
-		count--;
-	}
-	count = 16;
-	while (count){
-		*acb_firm_version = readb(iop_firm_version);
-		acb_firm_version++;
-		iop_firm_version++;
-		count--;
-	}
-
-	count = 16;
-	while(count){
-		*acb_device_map = readb(iop_device_map);
-		acb_device_map++;
-		iop_device_map++;
-		count--;
-	}
-	
-	pr_notice("Areca RAID Controller%d: Model %s, F/W %s\n",
-		acb->host->host_no,
-		acb->firm_model,
-		acb->firm_version);
-
-	acb->signature = readl(&reg->message_rwbuffer[0]);
-	/*firm_signature,1,00-03*/
-	acb->firm_request_len = readl(&reg->message_rwbuffer[1]);
-	/*firm_request_len,1,04-07*/
-	acb->firm_numbers_queue = readl(&reg->message_rwbuffer[2]);
-	/*firm_numbers_queue,2,08-11*/
-	acb->firm_sdram_size = readl(&reg->message_rwbuffer[3]);
-	/*firm_sdram_size,3,12-15*/
-	acb->firm_hd_channels = readl(&reg->message_rwbuffer[4]);
-	/*firm_ide_channels,4,16-19*/
-	acb->firm_cfg_version = readl(&reg->message_rwbuffer[25]);  /*firm_cfg_version,25,100-103*/
-	/*firm_ide_channels,4,16-19*/
+	arcmsr_get_adapter_config(acb, reg->message_rwbuffer);
 	return true;
 }
 
 static bool arcmsr_hbaC_get_config(struct AdapterControlBlock *pACB)
 {
-	uint32_t intmask_org, Index, firmware_state = 0;
+	uint32_t intmask_org;
 	struct MessageUnit_C __iomem *reg = pACB->pmuC;
-	char *acb_firm_model = pACB->firm_model;
-	char *acb_firm_version = pACB->firm_version;
-	char __iomem *iop_firm_model = (char __iomem *)(&reg->msgcode_rwbuffer[15]);    /*firm_model,15,60-67*/
-	char __iomem *iop_firm_version = (char __iomem *)(&reg->msgcode_rwbuffer[17]);  /*firm_version,17,68-83*/
-	int count;
+
 	/* disable all outbound interrupt */
 	intmask_org = readl(&reg->host_int_mask); /* disable outbound message0 int */
 	writel(intmask_org|ARCMSR_HBCMU_ALL_INTMASKENABLE, &reg->host_int_mask);
 	/* wait firmware ready */
-	do {
-		firmware_state = readl(&reg->outbound_msgaddr1);
-	} while ((firmware_state & ARCMSR_HBCMU_MESSAGE_FIRMWARE_OK) == 0);
+	arcmsr_wait_firmware_ready(pACB);
 	/* post "get config" instruction */
 	writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
 	writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &reg->inbound_doorbell);
 	/* wait message ready */
-	for (Index = 0; Index < 2000; Index++) {
-		if (readl(&reg->outbound_doorbell) & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
-			writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, &reg->outbound_doorbell_clear);/*clear interrupt*/
-			break;
-		}
-		udelay(10);
-	} /*max 1 seconds*/
-	if (Index >= 2000) {
+	if (!arcmsr_hbaC_wait_msgint_ready(pACB)) {
 		printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
 			miscellaneous data' timeout \n", pACB->host->host_no);
 		return false;
 	}
-	count = 8;
-	while (count) {
-		*acb_firm_model = readb(iop_firm_model);
-		acb_firm_model++;
-		iop_firm_model++;
-		count--;
-	}
-	count = 16;
-	while (count) {
-		*acb_firm_version = readb(iop_firm_version);
-		acb_firm_version++;
-		iop_firm_version++;
-		count--;
-	}
-	pr_notice("Areca RAID Controller%d: Model %s, F/W %s\n",
-		pACB->host->host_no,
-		pACB->firm_model,
-		pACB->firm_version);
-	pACB->firm_request_len = readl(&reg->msgcode_rwbuffer[1]);   /*firm_request_len,1,04-07*/
-	pACB->firm_numbers_queue = readl(&reg->msgcode_rwbuffer[2]); /*firm_numbers_queue,2,08-11*/
-	pACB->firm_sdram_size = readl(&reg->msgcode_rwbuffer[3]);    /*firm_sdram_size,3,12-15*/
-	pACB->firm_hd_channels = readl(&reg->msgcode_rwbuffer[4]);  /*firm_ide_channels,4,16-19*/
-	pACB->firm_cfg_version = readl(&reg->msgcode_rwbuffer[25]);  /*firm_cfg_version,25,100-103*/
-	/*all interrupt service will be enable at arcmsr_iop_init*/
+	arcmsr_get_adapter_config(pACB, reg->msgcode_rwbuffer);
 	return true;
 }
 
 static bool arcmsr_hbaD_get_config(struct AdapterControlBlock *acb)
 {
-	char *acb_firm_model = acb->firm_model;
-	char *acb_firm_version = acb->firm_version;
-	char *acb_device_map = acb->device_map;
-	char __iomem *iop_firm_model;
-	char __iomem *iop_firm_version;
-	char __iomem *iop_device_map;
-	u32 count;
 	struct MessageUnit_D *reg = acb->pmuD;
 
-	iop_firm_model = (char __iomem *)(&reg->msgcode_rwbuffer[15]);
-	iop_firm_version = (char __iomem *)(&reg->msgcode_rwbuffer[17]);
-	iop_device_map = (char __iomem *)(&reg->msgcode_rwbuffer[21]);
 	if (readl(acb->pmuD->outbound_doorbell) &
 		ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE) {
 		writel(ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE,
 			acb->pmuD->outbound_doorbell);/*clear interrupt*/
 	}
+	arcmsr_wait_firmware_ready(acb);
 	/* post "get config" instruction */
 	writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, reg->inbound_msgaddr0);
 	/* wait message ready */
@@ -2846,42 +3071,33 @@ static bool arcmsr_hbaD_get_config(struct AdapterControlBlock *acb)
 			"miscellaneous data timeout\n", acb->host->host_no);
 		return false;
 	}
-	count = 8;
-	while (count) {
-		*acb_firm_model = readb(iop_firm_model);
-		acb_firm_model++;
-		iop_firm_model++;
-		count--;
-	}
-	count = 16;
-	while (count) {
-		*acb_firm_version = readb(iop_firm_version);
-		acb_firm_version++;
-		iop_firm_version++;
-		count--;
-	}
-	count = 16;
-	while (count) {
-		*acb_device_map = readb(iop_device_map);
-		acb_device_map++;
-		iop_device_map++;
-		count--;
+	arcmsr_get_adapter_config(acb, reg->msgcode_rwbuffer);
+	return true;
+}
+
+static bool arcmsr_hbaE_get_config(struct AdapterControlBlock *pACB)
+{
+	struct MessageUnit_E __iomem *reg = pACB->pmuE;
+	uint32_t intmask_org;
+
+	/* disable all outbound interrupt */
+	intmask_org = readl(&reg->host_int_mask); /* disable outbound message0 int */
+	writel(intmask_org | ARCMSR_HBEMU_ALL_INTMASKENABLE, &reg->host_int_mask);
+	/* wait firmware ready */
+	arcmsr_wait_firmware_ready(pACB);
+	mdelay(20);
+	/* post "get config" instruction */
+	writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
+
+	pACB->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
+	writel(pACB->out_doorbell, &reg->iobound_doorbell);
+	/* wait message ready */
+	if (!arcmsr_hbaE_wait_msgint_ready(pACB)) {
+		pr_notice("arcmsr%d: wait get adapter firmware "
+			"miscellaneous data timeout\n", pACB->host->host_no);
+		return false;
 	}
-	acb->signature = readl(&reg->msgcode_rwbuffer[0]);
-	/*firm_signature,1,00-03*/
-	acb->firm_request_len = readl(&reg->msgcode_rwbuffer[1]);
-	/*firm_request_len,1,04-07*/
-	acb->firm_numbers_queue = readl(&reg->msgcode_rwbuffer[2]);
-	/*firm_numbers_queue,2,08-11*/
-	acb->firm_sdram_size = readl(&reg->msgcode_rwbuffer[3]);
-	/*firm_sdram_size,3,12-15*/
-	acb->firm_hd_channels = readl(&reg->msgcode_rwbuffer[4]);
-	/*firm_hd_channels,4,16-19*/
-	acb->firm_cfg_version = readl(&reg->msgcode_rwbuffer[25]);
-	pr_notice("Areca RAID Controller%d: Model %s, F/W %s\n",
-		acb->host->host_no,
-		acb->firm_model,
-		acb->firm_version);
+	arcmsr_get_adapter_config(pACB, reg->msgcode_rwbuffer);
 	return true;
 }
 
@@ -2902,14 +3118,20 @@ static bool arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
 	case ACB_ADAPTER_TYPE_D:
 		rtn = arcmsr_hbaD_get_config(acb);
 		break;
+	case ACB_ADAPTER_TYPE_E:
+		rtn = arcmsr_hbaE_get_config(acb);
+		break;
 	default:
 		break;
 	}
-	if (acb->firm_numbers_queue > ARCMSR_MAX_OUTSTANDING_CMD)
-		acb->maxOutstanding = ARCMSR_MAX_OUTSTANDING_CMD;
+	acb->maxOutstanding = acb->firm_numbers_queue - 1;
+	if (acb->host->can_queue >= acb->firm_numbers_queue)
+		acb->host->can_queue = acb->maxOutstanding;
 	else
-		acb->maxOutstanding = acb->firm_numbers_queue - 1;
-	acb->host->can_queue = acb->maxOutstanding;
+		acb->maxOutstanding = acb->host->can_queue;
+	acb->maxFreeCCB = acb->host->can_queue;
+	if (acb->maxFreeCCB < ARCMSR_MAX_FREECCB_NUM)
+		acb->maxFreeCCB += 64;
 	return rtn;
 }
 
@@ -3166,6 +3388,75 @@ polling_hbaD_ccb_retry:
 	return rtn;
 }
 
+static int arcmsr_hbaE_polling_ccbdone(struct AdapterControlBlock *acb,
+				struct CommandControlBlock *poll_ccb)
+{
+	bool error;
+	uint32_t poll_ccb_done = 0, poll_count = 0, doneq_index;
+	uint16_t cmdSMID;
+	unsigned long flags;
+	int rtn;
+	struct CommandControlBlock *pCCB;
+	struct MessageUnit_E __iomem *reg = acb->pmuE;
+
+	polling_hbaC_ccb_retry:
+	poll_count++;
+	while (1) {
+		spin_lock_irqsave(&acb->doneq_lock, flags);
+		doneq_index = acb->doneq_index;
+		if ((readl(&reg->reply_post_producer_index) & 0xFFFF) ==
+				doneq_index) {
+			spin_unlock_irqrestore(&acb->doneq_lock, flags);
+			if (poll_ccb_done) {
+				rtn = SUCCESS;
+				break;
+			} else {
+				msleep(25);
+				if (poll_count > 40) {
+					rtn = FAILED;
+					break;
+				}
+				goto polling_hbaC_ccb_retry;
+			}
+		}
+		cmdSMID = acb->pCompletionQ[doneq_index].cmdSMID;
+		doneq_index++;
+		if (doneq_index >= acb->completionQ_entry)
+			doneq_index = 0;
+		acb->doneq_index = doneq_index;
+		spin_unlock_irqrestore(&acb->doneq_lock, flags);
+		pCCB = acb->pccb_pool[cmdSMID];
+		poll_ccb_done |= (pCCB == poll_ccb) ? 1 : 0;
+		/* check if command done with no error*/
+		if ((pCCB->acb != acb) || (pCCB->startdone != ARCMSR_CCB_START)) {
+			if (pCCB->startdone == ARCMSR_CCB_ABORTED) {
+				pr_notice("arcmsr%d: scsi id = %d "
+					"lun = %d ccb = '0x%p' poll command "
+					"abort successfully\n"
+					, acb->host->host_no
+					, pCCB->pcmd->device->id
+					, (u32)pCCB->pcmd->device->lun
+					, pCCB);
+				pCCB->pcmd->result = DID_ABORT << 16;
+				arcmsr_ccb_complete(pCCB);
+				continue;
+			}
+			pr_notice("arcmsr%d: polling an illegal "
+				"ccb command done ccb = '0x%p' "
+				"ccboutstandingcount = %d\n"
+				, acb->host->host_no
+				, pCCB
+				, atomic_read(&acb->ccboutstandingcount));
+			continue;
+		}
+		error = (acb->pCompletionQ[doneq_index].cmdFlag &
+			ARCMSR_CCBREPLY_FLAG_ERROR_MODE1) ? true : false;
+		arcmsr_report_ccb_state(acb, pCCB, error);
+	}
+	writel(doneq_index, &reg->reply_post_consumer_index);
+	return rtn;
+}
+
 static int arcmsr_polling_ccbdone(struct AdapterControlBlock *acb,
 					struct CommandControlBlock *poll_ccb)
 {
@@ -3188,10 +3479,95 @@ static int arcmsr_polling_ccbdone(struct AdapterControlBlock *acb,
 	case ACB_ADAPTER_TYPE_D:
 		rtn = arcmsr_hbaD_polling_ccbdone(acb, poll_ccb);
 		break;
+	case ACB_ADAPTER_TYPE_E:
+		rtn = arcmsr_hbaE_polling_ccbdone(acb, poll_ccb);
+		break;
 	}
 	return rtn;
 }
 
+static void arcmsr_set_iop_datetime(struct timer_list *t)
+{
+	struct AdapterControlBlock *pacb = from_timer(pacb, t, refresh_timer);
+	unsigned int next_time;
+	struct tm tm;
+
+	union {
+		struct	{
+		uint16_t	signature;
+		uint8_t		year;
+		uint8_t		month;
+		uint8_t		date;
+		uint8_t		hour;
+		uint8_t		minute;
+		uint8_t		second;
+		} a;
+		struct	{
+		uint32_t	msg_time[2];
+		} b;
+	} datetime;
+
+	time64_to_tm(ktime_get_real_seconds(), -sys_tz.tz_minuteswest * 60, &tm);
+
+	datetime.a.signature = 0x55AA;
+	datetime.a.year = tm.tm_year - 100; /* base 2000 instead of 1900 */
+	datetime.a.month = tm.tm_mon;
+	datetime.a.date = tm.tm_mday;
+	datetime.a.hour = tm.tm_hour;
+	datetime.a.minute = tm.tm_min;
+	datetime.a.second = tm.tm_sec;
+
+	switch (pacb->adapter_type) {
+		case ACB_ADAPTER_TYPE_A: {
+			struct MessageUnit_A __iomem *reg = pacb->pmuA;
+			writel(datetime.b.msg_time[0], &reg->message_rwbuffer[0]);
+			writel(datetime.b.msg_time[1], &reg->message_rwbuffer[1]);
+			writel(ARCMSR_INBOUND_MESG0_SYNC_TIMER, &reg->inbound_msgaddr0);
+			break;
+		}
+		case ACB_ADAPTER_TYPE_B: {
+			uint32_t __iomem *rwbuffer;
+			struct MessageUnit_B *reg = pacb->pmuB;
+			rwbuffer = reg->message_rwbuffer;
+			writel(datetime.b.msg_time[0], rwbuffer++);
+			writel(datetime.b.msg_time[1], rwbuffer++);
+			writel(ARCMSR_MESSAGE_SYNC_TIMER, reg->drv2iop_doorbell);
+			break;
+		}
+		case ACB_ADAPTER_TYPE_C: {
+			struct MessageUnit_C __iomem *reg = pacb->pmuC;
+			writel(datetime.b.msg_time[0], &reg->msgcode_rwbuffer[0]);
+			writel(datetime.b.msg_time[1], &reg->msgcode_rwbuffer[1]);
+			writel(ARCMSR_INBOUND_MESG0_SYNC_TIMER, &reg->inbound_msgaddr0);
+			writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &reg->inbound_doorbell);
+			break;
+		}
+		case ACB_ADAPTER_TYPE_D: {
+			uint32_t __iomem *rwbuffer;
+			struct MessageUnit_D *reg = pacb->pmuD;
+			rwbuffer = reg->msgcode_rwbuffer;
+			writel(datetime.b.msg_time[0], rwbuffer++);
+			writel(datetime.b.msg_time[1], rwbuffer++);
+			writel(ARCMSR_INBOUND_MESG0_SYNC_TIMER, reg->inbound_msgaddr0);
+			break;
+		}
+		case ACB_ADAPTER_TYPE_E: {
+			struct MessageUnit_E __iomem *reg = pacb->pmuE;
+			writel(datetime.b.msg_time[0], &reg->msgcode_rwbuffer[0]);
+			writel(datetime.b.msg_time[1], &reg->msgcode_rwbuffer[1]);
+			writel(ARCMSR_INBOUND_MESG0_SYNC_TIMER, &reg->inbound_msgaddr0);
+			pacb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
+			writel(pacb->out_doorbell, &reg->iobound_doorbell);
+			break;
+		}
+	}
+	if (sys_tz.tz_minuteswest)
+		next_time = ARCMSR_HOURS;
+	else
+		next_time = ARCMSR_MINUTES;
+	mod_timer(&pacb->refresh_timer, jiffies + msecs_to_jiffies(next_time));
+}
+
 static int arcmsr_iop_confirm(struct AdapterControlBlock *acb)
 {
 	uint32_t cdb_phyaddr, cdb_phyaddr_hi32;
@@ -3208,6 +3584,10 @@ static int arcmsr_iop_confirm(struct AdapterControlBlock *acb)
 	case ACB_ADAPTER_TYPE_D:
 		dma_coherent_handle = acb->dma_coherent_handle2;
 		break;
+	case ACB_ADAPTER_TYPE_E:
+		dma_coherent_handle = acb->dma_coherent_handle +
+			offsetof(struct CommandControlBlock, arcmsr_cdb);
+		break;
 	default:
 		dma_coherent_handle = acb->dma_coherent_handle;
 		break;
@@ -3316,6 +3696,29 @@ static int arcmsr_iop_confirm(struct AdapterControlBlock *acb)
 		}
 		}
 		break;
+	case ACB_ADAPTER_TYPE_E: {
+		struct MessageUnit_E __iomem *reg = acb->pmuE;
+		writel(ARCMSR_SIGNATURE_SET_CONFIG, &reg->msgcode_rwbuffer[0]);
+		writel(ARCMSR_SIGNATURE_1884, &reg->msgcode_rwbuffer[1]);
+		writel(cdb_phyaddr, &reg->msgcode_rwbuffer[2]);
+		writel(cdb_phyaddr_hi32, &reg->msgcode_rwbuffer[3]);
+		writel(acb->ccbsize, &reg->msgcode_rwbuffer[4]);
+		dma_coherent_handle = acb->dma_coherent_handle2;
+		cdb_phyaddr = (uint32_t)(dma_coherent_handle & 0xffffffff);
+		cdb_phyaddr_hi32 = (uint32_t)((dma_coherent_handle >> 16) >> 16);
+		writel(cdb_phyaddr, &reg->msgcode_rwbuffer[5]);
+		writel(cdb_phyaddr_hi32, &reg->msgcode_rwbuffer[6]);
+		writel(acb->roundup_ccbsize, &reg->msgcode_rwbuffer[7]);
+		writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, &reg->inbound_msgaddr0);
+		acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
+		writel(acb->out_doorbell, &reg->iobound_doorbell);
+		if (!arcmsr_hbaE_wait_msgint_ready(acb)) {
+			pr_notice("arcmsr%d: 'set command Q window' timeout \n",
+				acb->host->host_no);
+			return 1;
+		}
+		}
+		break;
 	}
 	return 0;
 }
@@ -3356,83 +3759,22 @@ static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb)
 			ARCMSR_ARC1214_MESSAGE_FIRMWARE_OK) == 0);
 		}
 		break;
-	}
-}
-
-static void arcmsr_hbaA_request_device_map(struct AdapterControlBlock *acb)
-{
-	struct MessageUnit_A __iomem *reg = acb->pmuA;
-	if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0 ) || ((acb->acb_flags & ACB_F_ABORT) != 0 )){
-		mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
-		return;
-	} else {
-		acb->fw_flag = FW_NORMAL;
-		if (atomic_read(&acb->ante_token_value) == atomic_read(&acb->rq_map_token)){
-			atomic_set(&acb->rq_map_token, 16);
-		}
-		atomic_set(&acb->ante_token_value, atomic_read(&acb->rq_map_token));
-		if (atomic_dec_and_test(&acb->rq_map_token)) {
-			mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
-			return;
-		}
-		writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
-		mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
-	}
-	return;
-}
-
-static void arcmsr_hbaB_request_device_map(struct AdapterControlBlock *acb)
-{
-	struct MessageUnit_B *reg = acb->pmuB;
-	if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0 ) || ((acb->acb_flags & ACB_F_ABORT) != 0 )){
-		mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
-		return;
-	} else {
-		acb->fw_flag = FW_NORMAL;
-		if (atomic_read(&acb->ante_token_value) == atomic_read(&acb->rq_map_token)) {
-			atomic_set(&acb->rq_map_token, 16);
-		}
-		atomic_set(&acb->ante_token_value, atomic_read(&acb->rq_map_token));
-		if (atomic_dec_and_test(&acb->rq_map_token)) {
-			mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
-			return;
-		}
-		writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell);
-		mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
-	}
-	return;
-}
-
-static void arcmsr_hbaC_request_device_map(struct AdapterControlBlock *acb)
-{
-	struct MessageUnit_C __iomem *reg = acb->pmuC;
-	if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0) || ((acb->acb_flags & ACB_F_ABORT) != 0)) {
-		mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
-		return;
-	} else {
-		acb->fw_flag = FW_NORMAL;
-		if (atomic_read(&acb->ante_token_value) == atomic_read(&acb->rq_map_token)) {
-			atomic_set(&acb->rq_map_token, 16);
-		}
-		atomic_set(&acb->ante_token_value, atomic_read(&acb->rq_map_token));
-		if (atomic_dec_and_test(&acb->rq_map_token)) {
-			mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
-			return;
+	case ACB_ADAPTER_TYPE_E: {
+		struct MessageUnit_E __iomem *reg = acb->pmuE;
+		do {
+			firmware_state = readl(&reg->outbound_msgaddr1);
+		} while ((firmware_state & ARCMSR_HBEMU_MESSAGE_FIRMWARE_OK) == 0);
 		}
-		writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
-		writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &reg->inbound_doorbell);
-		mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
+		break;
 	}
-	return;
 }
 
-static void arcmsr_hbaD_request_device_map(struct AdapterControlBlock *acb)
+static void arcmsr_request_device_map(struct timer_list *t)
 {
-	struct MessageUnit_D *reg = acb->pmuD;
-
+	struct AdapterControlBlock *acb = from_timer(acb, t, eternal_timer);
 	if (unlikely(atomic_read(&acb->rq_map_token) == 0) ||
-		((acb->acb_flags & ACB_F_BUS_RESET) != 0) ||
-		((acb->acb_flags & ACB_F_ABORT) != 0)) {
+		(acb->acb_flags & ACB_F_BUS_RESET) ||
+		(acb->acb_flags & ACB_F_ABORT)) {
 		mod_timer(&acb->eternal_timer,
 			jiffies + msecs_to_jiffies(6 * HZ));
 	} else {
@@ -3448,32 +3790,40 @@ static void arcmsr_hbaD_request_device_map(struct AdapterControlBlock *acb)
 				msecs_to_jiffies(6 * HZ));
 			return;
 		}
-		writel(ARCMSR_INBOUND_MESG0_GET_CONFIG,
-			reg->inbound_msgaddr0);
-		mod_timer(&acb->eternal_timer, jiffies +
-			msecs_to_jiffies(6 * HZ));
-	}
-}
-
-static void arcmsr_request_device_map(struct timer_list *t)
-{
-	struct AdapterControlBlock *acb = from_timer(acb, t, eternal_timer);
-	switch (acb->adapter_type) {
+		switch (acb->adapter_type) {
 		case ACB_ADAPTER_TYPE_A: {
-			arcmsr_hbaA_request_device_map(acb);
-		}
-		break;
+			struct MessageUnit_A __iomem *reg = acb->pmuA;
+			writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
+			break;
+			}
 		case ACB_ADAPTER_TYPE_B: {
-			arcmsr_hbaB_request_device_map(acb);
-		}
-		break;
+			struct MessageUnit_B *reg = acb->pmuB;
+			writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell);
+			break;
+			}
 		case ACB_ADAPTER_TYPE_C: {
-			arcmsr_hbaC_request_device_map(acb);
+			struct MessageUnit_C __iomem *reg = acb->pmuC;
+			writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
+			writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &reg->inbound_doorbell);
+			break;
+			}
+		case ACB_ADAPTER_TYPE_D: {
+			struct MessageUnit_D *reg = acb->pmuD;
+			writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, reg->inbound_msgaddr0);
+			break;
+			}
+		case ACB_ADAPTER_TYPE_E: {
+			struct MessageUnit_E __iomem *reg = acb->pmuE;
+			writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
+			acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
+			writel(acb->out_doorbell, &reg->iobound_doorbell);
+			break;
+			}
+		default:
+			return;
 		}
-		break;
-		case ACB_ADAPTER_TYPE_D:
-			arcmsr_hbaD_request_device_map(acb);
-		break;
+		acb->acb_flags |= ACB_F_MSG_GET_CONFIG;
+		mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
 	}
 }
 
@@ -3524,6 +3874,20 @@ static void arcmsr_hbaD_start_bgrb(struct AdapterControlBlock *pACB)
 	}
 }
 
+static void arcmsr_hbaE_start_bgrb(struct AdapterControlBlock *pACB)
+{
+	struct MessageUnit_E __iomem *pmu = pACB->pmuE;
+
+	pACB->acb_flags |= ACB_F_MSG_START_BGRB;
+	writel(ARCMSR_INBOUND_MESG0_START_BGRB, &pmu->inbound_msgaddr0);
+	pACB->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
+	writel(pACB->out_doorbell, &pmu->iobound_doorbell);
+	if (!arcmsr_hbaE_wait_msgint_ready(pACB)) {
+		pr_notice("arcmsr%d: wait 'start adapter "
+			"background rebulid' timeout \n", pACB->host->host_no);
+	}
+}
+
 static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb)
 {
 	switch (acb->adapter_type) {
@@ -3539,6 +3903,9 @@ static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb)
 	case ACB_ADAPTER_TYPE_D:
 		arcmsr_hbaD_start_bgrb(acb);
 		break;
+	case ACB_ADAPTER_TYPE_E:
+		arcmsr_hbaE_start_bgrb(acb);
+		break;
 	}
 }
 
@@ -3558,10 +3925,19 @@ static void arcmsr_clear_doorbell_queue_buffer(struct AdapterControlBlock *acb)
 
 	case ACB_ADAPTER_TYPE_B: {
 		struct MessageUnit_B *reg = acb->pmuB;
-		/*clear interrupt and message state*/
-		writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
+		uint32_t outbound_doorbell, i;
+		writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
 		writel(ARCMSR_DRV2IOP_DATA_READ_OK, reg->drv2iop_doorbell);
 		/* let IOP know data has been read */
+		for(i=0; i < 200; i++) {
+			msleep(20);
+			outbound_doorbell = readl(reg->iop2drv_doorbell);
+			if( outbound_doorbell & ARCMSR_IOP2DRV_DATA_WRITE_OK) {
+				writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
+				writel(ARCMSR_DRV2IOP_DATA_READ_OK, reg->drv2iop_doorbell);
+			} else
+				break;
+		}
 		}
 		break;
 	case ACB_ADAPTER_TYPE_C: {
@@ -3607,6 +3983,27 @@ static void arcmsr_clear_doorbell_queue_buffer(struct AdapterControlBlock *acb)
 		}
 		}
 		break;
+	case ACB_ADAPTER_TYPE_E: {
+		struct MessageUnit_E __iomem *reg = acb->pmuE;
+		uint32_t i, tmp;
+
+		acb->in_doorbell = readl(&reg->iobound_doorbell);
+		writel(0, &reg->host_int_status); /*clear interrupt*/
+		acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_READ_OK;
+		writel(acb->out_doorbell, &reg->iobound_doorbell);
+		for(i=0; i < 200; i++) {
+			msleep(20);
+			tmp = acb->in_doorbell;
+			acb->in_doorbell = readl(&reg->iobound_doorbell);
+			if((tmp ^ acb->in_doorbell) & ARCMSR_HBEMU_IOP2DRV_DATA_WRITE_OK) {
+				writel(0, &reg->host_int_status); /*clear interrupt*/
+				acb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_DATA_READ_OK;
+				writel(acb->out_doorbell, &reg->iobound_doorbell);
+			} else
+				break;
+		}
+		}
+		break;
 	}
 }
 
@@ -3658,6 +4055,19 @@ static void arcmsr_hardware_reset(struct AdapterControlBlock *acb)
 			writel(0xD, &pmuC->write_sequence);
 		} while (((readl(&pmuC->host_diagnostic) & ARCMSR_ARC1880_DiagWrite_ENABLE) == 0) && (count < 5));
 		writel(ARCMSR_ARC1880_RESET_ADAPTER, &pmuC->host_diagnostic);
+	} else if (acb->dev_id == 0x1884) {
+		struct MessageUnit_E __iomem *pmuE = acb->pmuE;
+		do {
+			count++;
+			writel(0x4, &pmuE->write_sequence_3xxx);
+			writel(0xB, &pmuE->write_sequence_3xxx);
+			writel(0x2, &pmuE->write_sequence_3xxx);
+			writel(0x7, &pmuE->write_sequence_3xxx);
+			writel(0xD, &pmuE->write_sequence_3xxx);
+			mdelay(10);
+		} while (((readl(&pmuE->host_diagnostic_3xxx) &
+			ARCMSR_ARC1884_DiagWrite_ENABLE) == 0) && (count < 5));
+		writel(ARCMSR_ARC188X_RESET_ADAPTER, &pmuE->host_diagnostic_3xxx);
 	} else if ((acb->dev_id == 0x1214)) {
 		writel(0x20, pmuD->reset_request);
 	} else {
@@ -3671,6 +4081,45 @@ static void arcmsr_hardware_reset(struct AdapterControlBlock *acb)
 	msleep(1000);
 	return;
 }
+
+static bool arcmsr_reset_in_progress(struct AdapterControlBlock *acb)
+{
+	bool rtn = true;
+
+	switch(acb->adapter_type) {
+	case ACB_ADAPTER_TYPE_A:{
+		struct MessageUnit_A __iomem *reg = acb->pmuA;
+		rtn = ((readl(&reg->outbound_msgaddr1) &
+			ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0) ? true : false;
+		}
+		break;
+	case ACB_ADAPTER_TYPE_B:{
+		struct MessageUnit_B *reg = acb->pmuB;
+		rtn = ((readl(reg->iop2drv_doorbell) &
+			ARCMSR_MESSAGE_FIRMWARE_OK) == 0) ? true : false;
+		}
+		break;
+	case ACB_ADAPTER_TYPE_C:{
+		struct MessageUnit_C __iomem *reg = acb->pmuC;
+		rtn = (readl(&reg->host_diagnostic) & 0x04) ? true : false;
+		}
+		break;
+	case ACB_ADAPTER_TYPE_D:{
+		struct MessageUnit_D *reg = acb->pmuD;
+		rtn = ((readl(reg->sample_at_reset) & 0x80) == 0) ?
+			true : false;
+		}
+		break;
+	case ACB_ADAPTER_TYPE_E:{
+		struct MessageUnit_E __iomem *reg = acb->pmuE;
+		rtn = (readl(&reg->host_diagnostic_3xxx) &
+			ARCMSR_ARC188X_RESET_ADAPTER) ? true : false;
+		}
+		break;
+	}
+	return rtn;
+}
+
 static void arcmsr_iop_init(struct AdapterControlBlock *acb)
 {
 	uint32_t intmask_org;
@@ -3703,7 +4152,7 @@ static uint8_t arcmsr_iop_reset(struct AdapterControlBlock *acb)
 		rtnval = arcmsr_abort_allcmd(acb);
 		/* clear all outbound posted Q */
 		arcmsr_done4abort_postqueue(acb);
-		for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
+		for (i = 0; i < acb->maxFreeCCB; i++) {
 			ccb = acb->pccb_pool[i];
 			if (ccb->startdone == ARCMSR_CCB_START) {
 				scsi_dma_unmap(ccb->pcmd);
@@ -3725,197 +4174,55 @@ static uint8_t arcmsr_iop_reset(struct AdapterControlBlock *acb)
 static int arcmsr_bus_reset(struct scsi_cmnd *cmd)
 {
 	struct AdapterControlBlock *acb;
-	uint32_t intmask_org, outbound_doorbell;
 	int retry_count = 0;
 	int rtn = FAILED;
 	acb = (struct AdapterControlBlock *) cmd->device->host->hostdata;
-	printk(KERN_ERR "arcmsr: executing bus reset eh.....num_resets = %d, num_aborts = %d \n", acb->num_resets, acb->num_aborts);
+	pr_notice("arcmsr: executing bus reset eh.....num_resets = %d,"
+		" num_aborts = %d \n", acb->num_resets, acb->num_aborts);
 	acb->num_resets++;
 
-	switch(acb->adapter_type){
-		case ACB_ADAPTER_TYPE_A:{
-			if (acb->acb_flags & ACB_F_BUS_RESET){
-				long timeout;
-				printk(KERN_ERR "arcmsr: there is an  bus reset eh proceeding.......\n");
-				timeout = wait_event_timeout(wait_q, (acb->acb_flags & ACB_F_BUS_RESET) == 0, 220*HZ);
-				if (timeout) {
-					return SUCCESS;
-				}
-			}
-			acb->acb_flags |= ACB_F_BUS_RESET;
-			if (!arcmsr_iop_reset(acb)) {
-				struct MessageUnit_A __iomem *reg;
-				reg = acb->pmuA;
-				arcmsr_hardware_reset(acb);
-				acb->acb_flags &= ~ACB_F_IOP_INITED;
-sleep_again:
-				ssleep(ARCMSR_SLEEPTIME);
-				if ((readl(&reg->outbound_msgaddr1) & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0) {
-					printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, retry=%d\n", acb->host->host_no, retry_count);
-					if (retry_count > ARCMSR_RETRYCOUNT) {
-						acb->fw_flag = FW_DEADLOCK;
-						printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, RETRY TERMINATED!!\n", acb->host->host_no);
-						return FAILED;
-					}
-					retry_count++;
-					goto sleep_again;
-				}
-				acb->acb_flags |= ACB_F_IOP_INITED;
-				/* disable all outbound interrupt */
-				intmask_org = arcmsr_disable_outbound_ints(acb);
-				arcmsr_get_firmware_spec(acb);
-				arcmsr_start_adapter_bgrb(acb);
-				/* clear Qbuffer if door bell ringed */
-				outbound_doorbell = readl(&reg->outbound_doorbell);
-				writel(outbound_doorbell, &reg->outbound_doorbell); /*clear interrupt */
-   				writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, &reg->inbound_doorbell);
-				/* enable outbound Post Queue,outbound doorbell Interrupt */
-				arcmsr_enable_outbound_ints(acb, intmask_org);
-				atomic_set(&acb->rq_map_token, 16);
-				atomic_set(&acb->ante_token_value, 16);
-				acb->fw_flag = FW_NORMAL;
-				mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
-				acb->acb_flags &= ~ACB_F_BUS_RESET;
-				rtn = SUCCESS;
-				printk(KERN_ERR "arcmsr: scsi  bus reset eh returns with success\n");
-			} else {
-				acb->acb_flags &= ~ACB_F_BUS_RESET;
-				atomic_set(&acb->rq_map_token, 16);
-				atomic_set(&acb->ante_token_value, 16);
-				acb->fw_flag = FW_NORMAL;
-				mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6*HZ));
-				rtn = SUCCESS;
-			}
-			break;
-		}
-		case ACB_ADAPTER_TYPE_B:{
-			acb->acb_flags |= ACB_F_BUS_RESET;
-			if (!arcmsr_iop_reset(acb)) {
-				acb->acb_flags &= ~ACB_F_BUS_RESET;
-				rtn = FAILED;
-			} else {
-				acb->acb_flags &= ~ACB_F_BUS_RESET;
-				atomic_set(&acb->rq_map_token, 16);
-				atomic_set(&acb->ante_token_value, 16);
-				acb->fw_flag = FW_NORMAL;
-				mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
-				rtn = SUCCESS;
-			}
-			break;
-		}
-		case ACB_ADAPTER_TYPE_C:{
-			if (acb->acb_flags & ACB_F_BUS_RESET) {
-				long timeout;
-				printk(KERN_ERR "arcmsr: there is an bus reset eh proceeding.......\n");
-				timeout = wait_event_timeout(wait_q, (acb->acb_flags & ACB_F_BUS_RESET) == 0, 220*HZ);
-				if (timeout) {
-					return SUCCESS;
-				}
-			}
-			acb->acb_flags |= ACB_F_BUS_RESET;
-			if (!arcmsr_iop_reset(acb)) {
-				struct MessageUnit_C __iomem *reg;
-				reg = acb->pmuC;
-				arcmsr_hardware_reset(acb);
-				acb->acb_flags &= ~ACB_F_IOP_INITED;
-sleep:
-				ssleep(ARCMSR_SLEEPTIME);
-				if ((readl(&reg->host_diagnostic) & 0x04) != 0) {
-					printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, retry=%d\n", acb->host->host_no, retry_count);
-					if (retry_count > ARCMSR_RETRYCOUNT) {
-						acb->fw_flag = FW_DEADLOCK;
-						printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, RETRY TERMINATED!!\n", acb->host->host_no);
-						return FAILED;
-					}
-					retry_count++;
-					goto sleep;
-				}
-				acb->acb_flags |= ACB_F_IOP_INITED;
-				/* disable all outbound interrupt */
-				intmask_org = arcmsr_disable_outbound_ints(acb);
-				arcmsr_get_firmware_spec(acb);
-				arcmsr_start_adapter_bgrb(acb);
-				/* clear Qbuffer if door bell ringed */
-				arcmsr_clear_doorbell_queue_buffer(acb);
-				/* enable outbound Post Queue,outbound doorbell Interrupt */
-				arcmsr_enable_outbound_ints(acb, intmask_org);
-				atomic_set(&acb->rq_map_token, 16);
-				atomic_set(&acb->ante_token_value, 16);
-				acb->fw_flag = FW_NORMAL;
-				mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
-				acb->acb_flags &= ~ACB_F_BUS_RESET;
-				rtn = SUCCESS;
-				printk(KERN_ERR "arcmsr: scsi bus reset eh returns with success\n");
-			} else {
-				acb->acb_flags &= ~ACB_F_BUS_RESET;
-				atomic_set(&acb->rq_map_token, 16);
-				atomic_set(&acb->ante_token_value, 16);
-				acb->fw_flag = FW_NORMAL;
-				mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6*HZ));
-				rtn = SUCCESS;
-			}
-			break;
-		}
-		case ACB_ADAPTER_TYPE_D: {
-			if (acb->acb_flags & ACB_F_BUS_RESET) {
-				long timeout;
-				pr_notice("arcmsr: there is an bus reset"
-					" eh proceeding.......\n");
-				timeout = wait_event_timeout(wait_q, (acb->acb_flags
-					& ACB_F_BUS_RESET) == 0, 220 * HZ);
-				if (timeout)
-					return SUCCESS;
-			}
-			acb->acb_flags |= ACB_F_BUS_RESET;
-			if (!arcmsr_iop_reset(acb)) {
-				struct MessageUnit_D *reg;
-				reg = acb->pmuD;
-				arcmsr_hardware_reset(acb);
-				acb->acb_flags &= ~ACB_F_IOP_INITED;
-			nap:
-				ssleep(ARCMSR_SLEEPTIME);
-				if ((readl(reg->sample_at_reset) & 0x80) != 0) {
-					pr_err("arcmsr%d: waiting for "
-						"hw bus reset return, retry=%d\n",
-						acb->host->host_no, retry_count);
-					if (retry_count > ARCMSR_RETRYCOUNT) {
-						acb->fw_flag = FW_DEADLOCK;
-						pr_err("arcmsr%d: waiting for hw bus"
-							" reset return, "
-							"RETRY TERMINATED!!\n",
-							acb->host->host_no);
-						return FAILED;
-					}
-					retry_count++;
-					goto nap;
-				}
-				acb->acb_flags |= ACB_F_IOP_INITED;
-				/* disable all outbound interrupt */
-				intmask_org = arcmsr_disable_outbound_ints(acb);
-				arcmsr_get_firmware_spec(acb);
-				arcmsr_start_adapter_bgrb(acb);
-				arcmsr_clear_doorbell_queue_buffer(acb);
-				arcmsr_enable_outbound_ints(acb, intmask_org);
-				atomic_set(&acb->rq_map_token, 16);
-				atomic_set(&acb->ante_token_value, 16);
-				acb->fw_flag = FW_NORMAL;
-				mod_timer(&acb->eternal_timer,
-					jiffies + msecs_to_jiffies(6 * HZ));
-				acb->acb_flags &= ~ACB_F_BUS_RESET;
-				rtn = SUCCESS;
-				pr_err("arcmsr: scsi bus reset "
-					"eh returns with success\n");
-			} else {
-				acb->acb_flags &= ~ACB_F_BUS_RESET;
-				atomic_set(&acb->rq_map_token, 16);
-				atomic_set(&acb->ante_token_value, 16);
-				acb->fw_flag = FW_NORMAL;
-				mod_timer(&acb->eternal_timer,
-					jiffies + msecs_to_jiffies(6 * HZ));
-				rtn = SUCCESS;
+	if (acb->acb_flags & ACB_F_BUS_RESET) {
+		long timeout;
+		pr_notice("arcmsr: there is a bus reset eh proceeding...\n");
+		timeout = wait_event_timeout(wait_q, (acb->acb_flags
+			& ACB_F_BUS_RESET) == 0, 220 * HZ);
+		if (timeout)
+			return SUCCESS;
+	}
+	acb->acb_flags |= ACB_F_BUS_RESET;
+	if (!arcmsr_iop_reset(acb)) {
+		arcmsr_hardware_reset(acb);
+		acb->acb_flags &= ~ACB_F_IOP_INITED;
+wait_reset_done:
+		ssleep(ARCMSR_SLEEPTIME);
+		if (arcmsr_reset_in_progress(acb)) {
+			if (retry_count > ARCMSR_RETRYCOUNT) {
+				acb->fw_flag = FW_DEADLOCK;
+				pr_notice("arcmsr%d: waiting for hw bus reset"
+					" return, RETRY TERMINATED!!\n",
+					acb->host->host_no);
+				return FAILED;
 			}
-			break;
+			retry_count++;
+			goto wait_reset_done;
 		}
+		arcmsr_iop_init(acb);
+		atomic_set(&acb->rq_map_token, 16);
+		atomic_set(&acb->ante_token_value, 16);
+		acb->fw_flag = FW_NORMAL;
+		mod_timer(&acb->eternal_timer, jiffies +
+			msecs_to_jiffies(6 * HZ));
+		acb->acb_flags &= ~ACB_F_BUS_RESET;
+		rtn = SUCCESS;
+		pr_notice("arcmsr: scsi bus reset eh returns with success\n");
+	} else {
+		acb->acb_flags &= ~ACB_F_BUS_RESET;
+		atomic_set(&acb->rq_map_token, 16);
+		atomic_set(&acb->ante_token_value, 16);
+		acb->fw_flag = FW_NORMAL;
+		mod_timer(&acb->eternal_timer, jiffies +
+			msecs_to_jiffies(6 * HZ));
+		rtn = SUCCESS;
 	}
 	return rtn;
 }
@@ -3953,7 +4260,7 @@ static int arcmsr_abort(struct scsi_cmnd *cmd)
 	}
 
 	intmask_org = arcmsr_disable_outbound_ints(acb);
-	for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
+	for (i = 0; i < acb->maxFreeCCB; i++) {
 		struct CommandControlBlock *ccb = acb->pccb_pool[i];
 		if (ccb->startdone == ARCMSR_CCB_START && ccb->pcmd == cmd) {
 			ccb->startdone = ARCMSR_CCB_ABORTED;
@@ -3999,6 +4306,7 @@ static const char *arcmsr_info(struct Scsi_Host *host)
 	case PCI_DEVICE_ID_ARECA_1680:
 	case PCI_DEVICE_ID_ARECA_1681:
 	case PCI_DEVICE_ID_ARECA_1880:
+	case PCI_DEVICE_ID_ARECA_1884:
 		type = "SAS/SATA";
 		break;
 	default:
diff --git a/drivers/scsi/arm/fas216.c b/drivers/scsi/arm/fas216.c
index f4775ca70bab..27bda2b05de6 100644
--- a/drivers/scsi/arm/fas216.c
+++ b/drivers/scsi/arm/fas216.c
@@ -2011,7 +2011,7 @@ static void fas216_rq_sns_done(FAS216_Info *info, struct scsi_cmnd *SCpnt,
 		 * have valid data in the sense buffer that could
 		 * confuse the higher levels.
 		 */
-		memset(SCpnt->sense_buffer, 0, sizeof(SCpnt->sense_buffer));
+		memset(SCpnt->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
 //printk("scsi%d.%c: sense buffer: ", info->host->host_no, '0' + SCpnt->device->id);
 //{ int i; for (i = 0; i < 32; i++) printk("%02x ", SCpnt->sense_buffer[i]); printk("\n"); }
 	/*
diff --git a/drivers/scsi/bfa/bfa_core.c b/drivers/scsi/bfa/bfa_core.c
index 3e1caec82554..10a63be92544 100644
--- a/drivers/scsi/bfa/bfa_core.c
+++ b/drivers/scsi/bfa/bfa_core.c
@@ -1957,7 +1957,7 @@ bfa_get_pciids(struct bfa_pciid_s **pciids, int *npciids)
 		{BFA_PCI_VENDOR_ID_BROCADE, BFA_PCI_DEVICE_ID_CT_FC},
 	};
 
-	*npciids = sizeof(__pciids) / sizeof(__pciids[0]);
+	*npciids = ARRAY_SIZE(__pciids);
 	*pciids = __pciids;
 }
 
diff --git a/drivers/scsi/bfa/bfa_cs.h b/drivers/scsi/bfa/bfa_cs.h
index df6760ca0911..9685efc59b16 100644
--- a/drivers/scsi/bfa/bfa_cs.h
+++ b/drivers/scsi/bfa/bfa_cs.h
@@ -35,10 +35,10 @@
 
 #define BFA_TRC_TS(_trcm)                               \
 	({                                              \
-		struct timeval tv;                      \
+		struct timespec64 ts;                   \
 							\
-		do_gettimeofday(&tv);                   \
-		(tv.tv_sec*1000000+tv.tv_usec);         \
+		ktime_get_ts64(&ts);                    \
+		(ts.tv_sec*1000000+ts.tv_nsec / 1000);  \
 	})
 
 #ifndef BFA_TRC_TS
diff --git a/drivers/scsi/bfa/bfa_defs_svc.h b/drivers/scsi/bfa/bfa_defs_svc.h
index e81707f938cb..3d0c96a5c873 100644
--- a/drivers/scsi/bfa/bfa_defs_svc.h
+++ b/drivers/scsi/bfa/bfa_defs_svc.h
@@ -1455,7 +1455,8 @@ struct bfa_aen_entry_s {
 	enum bfa_aen_category   aen_category;
 	u32                     aen_type;
 	union bfa_aen_data_u    aen_data;
-	struct timeval          aen_tv;
+	u64			aen_tv_sec;
+	u64			aen_tv_usec;
 	u32                     seq_num;
 	u32                     bfad_num;
 };
diff --git a/drivers/scsi/bfa/bfa_fcbuild.c b/drivers/scsi/bfa/bfa_fcbuild.c
index b8dadc9cc993..d3b00a475aeb 100644
--- a/drivers/scsi/bfa/bfa_fcbuild.c
+++ b/drivers/scsi/bfa/bfa_fcbuild.c
@@ -1250,8 +1250,8 @@ fc_rspnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
 	memset(rspnid, 0, sizeof(struct fcgs_rspnid_req_s));
 
 	rspnid->dap = s_id;
-	rspnid->spn_len = (u8) strlen((char *)name);
-	strncpy((char *)rspnid->spn, (char *)name, rspnid->spn_len);
+	strlcpy(rspnid->spn, name, sizeof(rspnid->spn));
+	rspnid->spn_len = (u8) strlen(rspnid->spn);
 
 	return sizeof(struct fcgs_rspnid_req_s) + sizeof(struct ct_hdr_s);
 }
@@ -1271,8 +1271,8 @@ fc_rsnn_nn_build(struct fchs_s *fchs, void *pyld, u32 s_id,
 	memset(rsnn_nn, 0, sizeof(struct fcgs_rsnn_nn_req_s));
 
 	rsnn_nn->node_name = node_name;
-	rsnn_nn->snn_len = (u8) strlen((char *)name);
-	strncpy((char *)rsnn_nn->snn, (char *)name, rsnn_nn->snn_len);
+	strlcpy(rsnn_nn->snn, name, sizeof(rsnn_nn->snn));
+	rsnn_nn->snn_len = (u8) strlen(rsnn_nn->snn);
 
 	return sizeof(struct fcgs_rsnn_nn_req_s) + sizeof(struct ct_hdr_s);
 }
diff --git a/drivers/scsi/bfa/bfa_fcpim.c b/drivers/scsi/bfa/bfa_fcpim.c
index 5f53b3276234..2c85f5b1f9c1 100644
--- a/drivers/scsi/bfa/bfa_fcpim.c
+++ b/drivers/scsi/bfa/bfa_fcpim.c
@@ -468,7 +468,7 @@ bfa_ioim_profile_start(struct bfa_ioim_s *ioim)
 }
 
 bfa_status_t
-bfa_fcpim_profile_on(struct bfa_s *bfa, u32 time)
+bfa_fcpim_profile_on(struct bfa_s *bfa, time64_t time)
 {
 	struct bfa_itnim_s *itnim;
 	struct bfa_fcpim_s *fcpim = BFA_FCPIM(bfa);
@@ -1478,6 +1478,7 @@ bfa_itnim_get_ioprofile(struct bfa_itnim_s *itnim,
 		return BFA_STATUS_IOPROFILE_OFF;
 
 	itnim->ioprofile.index = BFA_IOBUCKET_MAX;
+	/* unsigned 32-bit time_t overflow here in y2106 */
 	itnim->ioprofile.io_profile_start_time =
 				bfa_io_profile_start_time(itnim->bfa);
 	itnim->ioprofile.clock_res_mul = bfa_io_lat_clock_res_mul;
diff --git a/drivers/scsi/bfa/bfa_fcpim.h b/drivers/scsi/bfa/bfa_fcpim.h
index e93921dec347..ec8f863540ae 100644
--- a/drivers/scsi/bfa/bfa_fcpim.h
+++ b/drivers/scsi/bfa/bfa_fcpim.h
@@ -136,7 +136,7 @@ struct bfa_fcpim_s {
 	struct bfa_fcpim_del_itn_stats_s del_itn_stats;
 	bfa_boolean_t		ioredirect;
 	bfa_boolean_t		io_profile;
-	u32			io_profile_start_time;
+	time64_t		io_profile_start_time;
 	bfa_fcpim_profile_t     profile_comp;
 	bfa_fcpim_profile_t     profile_start;
 };
@@ -310,7 +310,7 @@ bfa_status_t bfa_fcpim_port_iostats(struct bfa_s *bfa,
 			struct bfa_itnim_iostats_s *stats, u8 lp_tag);
 void bfa_fcpim_add_stats(struct bfa_itnim_iostats_s *fcpim_stats,
 			struct bfa_itnim_iostats_s *itnim_stats);
-bfa_status_t bfa_fcpim_profile_on(struct bfa_s *bfa, u32 time);
+bfa_status_t bfa_fcpim_profile_on(struct bfa_s *bfa, time64_t time);
 bfa_status_t bfa_fcpim_profile_off(struct bfa_s *bfa);
 
 #define bfa_fcpim_ioredirect_enabled(__bfa)				\
diff --git a/drivers/scsi/bfa/bfa_fcs.c b/drivers/scsi/bfa/bfa_fcs.c
index 4aa61e20e82d..932feb0ed4da 100644
--- a/drivers/scsi/bfa/bfa_fcs.c
+++ b/drivers/scsi/bfa/bfa_fcs.c
@@ -769,23 +769,23 @@ bfa_fcs_fabric_psymb_init(struct bfa_fcs_fabric_s *fabric)
 	bfa_ioc_get_adapter_model(&fabric->fcs->bfa->ioc, model);
 
 	/* Model name/number */
-	strncpy((char *)&port_cfg->sym_name, model,
-		BFA_FCS_PORT_SYMBNAME_MODEL_SZ);
-	strncat((char *)&port_cfg->sym_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
-		sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+	strlcpy(port_cfg->sym_name.symname, model,
+		BFA_SYMNAME_MAXLEN);
+	strlcat(port_cfg->sym_name.symname, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
+		BFA_SYMNAME_MAXLEN);
 
 	/* Driver Version */
-	strncat((char *)&port_cfg->sym_name, (char *)driver_info->version,
-		BFA_FCS_PORT_SYMBNAME_VERSION_SZ);
-	strncat((char *)&port_cfg->sym_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
-		sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+	strlcat(port_cfg->sym_name.symname, driver_info->version,
+		BFA_SYMNAME_MAXLEN);
+	strlcat(port_cfg->sym_name.symname, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
+		BFA_SYMNAME_MAXLEN);
 
 	/* Host machine name */
-	strncat((char *)&port_cfg->sym_name,
-		(char *)driver_info->host_machine_name,
-		BFA_FCS_PORT_SYMBNAME_MACHINENAME_SZ);
-	strncat((char *)&port_cfg->sym_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
-		sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+	strlcat(port_cfg->sym_name.symname,
+		driver_info->host_machine_name,
+		BFA_SYMNAME_MAXLEN);
+	strlcat(port_cfg->sym_name.symname, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
+		BFA_SYMNAME_MAXLEN);
 
 	/*
 	 * Host OS Info :
@@ -793,24 +793,24 @@ bfa_fcs_fabric_psymb_init(struct bfa_fcs_fabric_s *fabric)
 	 * OS name string and instead copy the entire OS info string (64 bytes).
 	 */
 	if (driver_info->host_os_patch[0] == '\0') {
-		strncat((char *)&port_cfg->sym_name,
-			(char *)driver_info->host_os_name,
-			BFA_FCS_OS_STR_LEN);
-		strncat((char *)&port_cfg->sym_name,
+		strlcat(port_cfg->sym_name.symname,
+			driver_info->host_os_name,
+			BFA_SYMNAME_MAXLEN);
+		strlcat(port_cfg->sym_name.symname,
 			BFA_FCS_PORT_SYMBNAME_SEPARATOR,
-			sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+			BFA_SYMNAME_MAXLEN);
 	} else {
-		strncat((char *)&port_cfg->sym_name,
-			(char *)driver_info->host_os_name,
-			BFA_FCS_PORT_SYMBNAME_OSINFO_SZ);
-		strncat((char *)&port_cfg->sym_name,
+		strlcat(port_cfg->sym_name.symname,
+			driver_info->host_os_name,
+			BFA_SYMNAME_MAXLEN);
+		strlcat(port_cfg->sym_name.symname,
 			BFA_FCS_PORT_SYMBNAME_SEPARATOR,
-			sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+			BFA_SYMNAME_MAXLEN);
 
 		/* Append host OS Patch Info */
-		strncat((char *)&port_cfg->sym_name,
-			(char *)driver_info->host_os_patch,
-			BFA_FCS_PORT_SYMBNAME_OSPATCH_SZ);
+		strlcat(port_cfg->sym_name.symname,
+			driver_info->host_os_patch,
+			BFA_SYMNAME_MAXLEN);
 	}
 
 	/* null terminate */
@@ -830,26 +830,26 @@ bfa_fcs_fabric_nsymb_init(struct bfa_fcs_fabric_s *fabric)
 	bfa_ioc_get_adapter_model(&fabric->fcs->bfa->ioc, model);
 
 	/* Model name/number */
-	strncpy((char *)&port_cfg->node_sym_name, model,
-		BFA_FCS_PORT_SYMBNAME_MODEL_SZ);
-	strncat((char *)&port_cfg->node_sym_name,
+	strlcpy(port_cfg->node_sym_name.symname, model,
+		BFA_SYMNAME_MAXLEN);
+	strlcat(port_cfg->node_sym_name.symname,
 			BFA_FCS_PORT_SYMBNAME_SEPARATOR,
-			sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+			BFA_SYMNAME_MAXLEN);
 
 	/* Driver Version */
-	strncat((char *)&port_cfg->node_sym_name, (char *)driver_info->version,
-		BFA_FCS_PORT_SYMBNAME_VERSION_SZ);
-	strncat((char *)&port_cfg->node_sym_name,
+	strlcat(port_cfg->node_sym_name.symname, (char *)driver_info->version,
+		BFA_SYMNAME_MAXLEN);
+	strlcat(port_cfg->node_sym_name.symname,
 			BFA_FCS_PORT_SYMBNAME_SEPARATOR,
-			sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+			BFA_SYMNAME_MAXLEN);
 
 	/* Host machine name */
-	strncat((char *)&port_cfg->node_sym_name,
-		(char *)driver_info->host_machine_name,
-		BFA_FCS_PORT_SYMBNAME_MACHINENAME_SZ);
-	strncat((char *)&port_cfg->node_sym_name,
+	strlcat(port_cfg->node_sym_name.symname,
+		driver_info->host_machine_name,
+		BFA_SYMNAME_MAXLEN);
+	strlcat(port_cfg->node_sym_name.symname,
 			BFA_FCS_PORT_SYMBNAME_SEPARATOR,
-			sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+			BFA_SYMNAME_MAXLEN);
 
 	/* null terminate */
 	port_cfg->node_sym_name.symname[BFA_SYMNAME_MAXLEN - 1] = 0;
diff --git a/drivers/scsi/bfa/bfa_fcs_lport.c b/drivers/scsi/bfa/bfa_fcs_lport.c
index 638c0a2857f7..b4f2c1d8742e 100644
--- a/drivers/scsi/bfa/bfa_fcs_lport.c
+++ b/drivers/scsi/bfa/bfa_fcs_lport.c
@@ -2642,10 +2642,10 @@ bfa_fcs_fdmi_get_hbaattr(struct bfa_fcs_lport_fdmi_s *fdmi,
 	bfa_ioc_get_adapter_fw_ver(&port->fcs->bfa->ioc,
 					hba_attr->fw_version);
 
-	strncpy(hba_attr->driver_version, (char *)driver_info->version,
+	strlcpy(hba_attr->driver_version, (char *)driver_info->version,
 		sizeof(hba_attr->driver_version));
 
-	strncpy(hba_attr->os_name, driver_info->host_os_name,
+	strlcpy(hba_attr->os_name, driver_info->host_os_name,
 		sizeof(hba_attr->os_name));
 
 	/*
@@ -2653,23 +2653,23 @@ bfa_fcs_fdmi_get_hbaattr(struct bfa_fcs_lport_fdmi_s *fdmi,
 	 * to the os name along with a separator
 	 */
 	if (driver_info->host_os_patch[0] != '\0') {
-		strncat(hba_attr->os_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
-			sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
-		strncat(hba_attr->os_name, driver_info->host_os_patch,
-				sizeof(driver_info->host_os_patch));
+		strlcat(hba_attr->os_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
+			sizeof(hba_attr->os_name));
+		strlcat(hba_attr->os_name, driver_info->host_os_patch,
+				sizeof(hba_attr->os_name));
 	}
 
 	/* Retrieve the max frame size from the port attr */
 	bfa_fcs_fdmi_get_portattr(fdmi, &fcs_port_attr);
 	hba_attr->max_ct_pyld = fcs_port_attr.max_frm_size;
 
-	strncpy(hba_attr->node_sym_name.symname,
+	strlcpy(hba_attr->node_sym_name.symname,
 		port->port_cfg.node_sym_name.symname, BFA_SYMNAME_MAXLEN);
 	strcpy(hba_attr->vendor_info, "QLogic");
 	hba_attr->num_ports =
 		cpu_to_be32(bfa_ioc_get_nports(&port->fcs->bfa->ioc));
 	hba_attr->fabric_name = port->fabric->lps->pr_nwwn;
-	strncpy(hba_attr->bios_ver, hba_attr->option_rom_ver, BFA_VERSION_LEN);
+	strlcpy(hba_attr->bios_ver, hba_attr->option_rom_ver, BFA_VERSION_LEN);
 
 }
 
@@ -2736,20 +2736,20 @@ bfa_fcs_fdmi_get_portattr(struct bfa_fcs_lport_fdmi_s *fdmi,
 	/*
 	 * OS device Name
 	 */
-	strncpy(port_attr->os_device_name, (char *)driver_info->os_device_name,
+	strlcpy(port_attr->os_device_name, driver_info->os_device_name,
 		sizeof(port_attr->os_device_name));
 
 	/*
 	 * Host name
 	 */
-	strncpy(port_attr->host_name, (char *)driver_info->host_machine_name,
+	strlcpy(port_attr->host_name, driver_info->host_machine_name,
 		sizeof(port_attr->host_name));
 
 	port_attr->node_name = bfa_fcs_lport_get_nwwn(port);
 	port_attr->port_name = bfa_fcs_lport_get_pwwn(port);
 
-	strncpy(port_attr->port_sym_name.symname,
-		(char *)&bfa_fcs_lport_get_psym_name(port), BFA_SYMNAME_MAXLEN);
+	strlcpy(port_attr->port_sym_name.symname,
+		bfa_fcs_lport_get_psym_name(port).symname, BFA_SYMNAME_MAXLEN);
 	bfa_fcs_lport_get_attr(port, &lport_attr);
 	port_attr->port_type = cpu_to_be32(lport_attr.port_type);
 	port_attr->scos = pport_attr.cos_supported;
@@ -3229,7 +3229,7 @@ bfa_fcs_lport_ms_gmal_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
 					rsp_str[gmal_entry->len-1] = 0;
 
 				/* copy IP Address to fabric */
-				strncpy(bfa_fcs_lport_get_fabric_ipaddr(port),
+				strlcpy(bfa_fcs_lport_get_fabric_ipaddr(port),
 					gmal_entry->ip_addr,
 					BFA_FCS_FABRIC_IPADDR_SZ);
 				break;
@@ -4667,21 +4667,13 @@ bfa_fcs_lport_ns_send_rspn_id(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
 		 * to that of the base port.
 		 */
 
-		strncpy((char *)psymbl,
-			(char *) &
-			(bfa_fcs_lport_get_psym_name
+		strlcpy(symbl,
+			(char *)&(bfa_fcs_lport_get_psym_name
 			 (bfa_fcs_get_base_port(port->fcs))),
-			strlen((char *) &
-			       bfa_fcs_lport_get_psym_name(bfa_fcs_get_base_port
-							  (port->fcs))));
-
-		/* Ensure we have a null terminating string. */
-		((char *)psymbl)[strlen((char *) &
-			bfa_fcs_lport_get_psym_name(bfa_fcs_get_base_port
-						(port->fcs)))] = 0;
-		strncat((char *)psymbl,
-			(char *) &(bfa_fcs_lport_get_psym_name(port)),
-		strlen((char *) &bfa_fcs_lport_get_psym_name(port)));
+			sizeof(symbl));
+
+		strlcat(symbl, (char *)&(bfa_fcs_lport_get_psym_name(port)),
+			sizeof(symbl));
 	} else {
 		psymbl = (u8 *) &(bfa_fcs_lport_get_psym_name(port));
 	}
@@ -5173,7 +5165,6 @@ bfa_fcs_lport_ns_util_send_rspn_id(void *cbarg, struct bfa_fcxp_s *fcxp_alloced)
 	struct fchs_s fchs;
 	struct bfa_fcxp_s *fcxp;
 	u8 symbl[256];
-	u8 *psymbl = &symbl[0];
 	int len;
 
 	/* Avoid sending RSPN in the following states. */
@@ -5203,22 +5194,17 @@ bfa_fcs_lport_ns_util_send_rspn_id(void *cbarg, struct bfa_fcxp_s *fcxp_alloced)
 		 * For Vports, we append the vport's port symbolic name
 		 * to that of the base port.
 		 */
-		strncpy((char *)psymbl, (char *)&(bfa_fcs_lport_get_psym_name
+		strlcpy(symbl, (char *)&(bfa_fcs_lport_get_psym_name
 			(bfa_fcs_get_base_port(port->fcs))),
-			strlen((char *)&bfa_fcs_lport_get_psym_name(
-			bfa_fcs_get_base_port(port->fcs))));
-
-		/* Ensure we have a null terminating string. */
-		((char *)psymbl)[strlen((char *)&bfa_fcs_lport_get_psym_name(
-		 bfa_fcs_get_base_port(port->fcs)))] = 0;
+			sizeof(symbl));
 
-		strncat((char *)psymbl,
+		strlcat(symbl,
 			(char *)&(bfa_fcs_lport_get_psym_name(port)),
-			strlen((char *)&bfa_fcs_lport_get_psym_name(port)));
+			sizeof(symbl));
 	}
 
 	len = fc_rspnid_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
-			      bfa_fcs_lport_get_fcid(port), 0, psymbl);
+			      bfa_fcs_lport_get_fcid(port), 0, symbl);
 
 	bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
 		      FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
diff --git a/drivers/scsi/bfa/bfa_ioc.c b/drivers/scsi/bfa/bfa_ioc.c
index 256f4afaccf9..16d3aeb0e572 100644
--- a/drivers/scsi/bfa/bfa_ioc.c
+++ b/drivers/scsi/bfa/bfa_ioc.c
@@ -1809,13 +1809,12 @@ static void
 bfa_ioc_send_enable(struct bfa_ioc_s *ioc)
 {
 	struct bfi_ioc_ctrl_req_s enable_req;
-	struct timeval tv;
 
 	bfi_h2i_set(enable_req.mh, BFI_MC_IOC, BFI_IOC_H2I_ENABLE_REQ,
 		    bfa_ioc_portid(ioc));
 	enable_req.clscode = cpu_to_be16(ioc->clscode);
-	do_gettimeofday(&tv);
-	enable_req.tv_sec = be32_to_cpu(tv.tv_sec);
+	/* unsigned 32-bit time_t overflow in y2106 */
+	enable_req.tv_sec = be32_to_cpu(ktime_get_real_seconds());
 	bfa_ioc_mbox_send(ioc, &enable_req, sizeof(struct bfi_ioc_ctrl_req_s));
 }
 
@@ -1826,6 +1825,9 @@ bfa_ioc_send_disable(struct bfa_ioc_s *ioc)
 
 	bfi_h2i_set(disable_req.mh, BFI_MC_IOC, BFI_IOC_H2I_DISABLE_REQ,
 		    bfa_ioc_portid(ioc));
+	disable_req.clscode = cpu_to_be16(ioc->clscode);
+	/* unsigned 32-bit time_t overflow in y2106 */
+	disable_req.tv_sec = be32_to_cpu(ktime_get_real_seconds());
 	bfa_ioc_mbox_send(ioc, &disable_req, sizeof(struct bfi_ioc_ctrl_req_s));
 }
 
@@ -2803,7 +2805,7 @@ void
 bfa_ioc_get_adapter_manufacturer(struct bfa_ioc_s *ioc, char *manufacturer)
 {
 	memset((void *)manufacturer, 0, BFA_ADAPTER_MFG_NAME_LEN);
-	strncpy(manufacturer, BFA_MFG_NAME, BFA_ADAPTER_MFG_NAME_LEN);
+	strlcpy(manufacturer, BFA_MFG_NAME, BFA_ADAPTER_MFG_NAME_LEN);
 }
 
 void
diff --git a/drivers/scsi/bfa/bfa_port.c b/drivers/scsi/bfa/bfa_port.c
index da1721e0d167..079bc77f4102 100644
--- a/drivers/scsi/bfa/bfa_port.c
+++ b/drivers/scsi/bfa/bfa_port.c
@@ -96,14 +96,11 @@ bfa_port_get_stats_isr(struct bfa_port_s *port, bfa_status_t status)
 	port->stats_busy = BFA_FALSE;
 
 	if (status == BFA_STATUS_OK) {
-		struct timeval tv;
-
 		memcpy(port->stats, port->stats_dma.kva,
 		       sizeof(union bfa_port_stats_u));
 		bfa_port_stats_swap(port, port->stats);
 
-		do_gettimeofday(&tv);
-		port->stats->fc.secs_reset = tv.tv_sec - port->stats_reset_time;
+		port->stats->fc.secs_reset = ktime_get_seconds() - port->stats_reset_time;
 	}
 
 	if (port->stats_cbfn) {
@@ -124,16 +121,13 @@ bfa_port_get_stats_isr(struct bfa_port_s *port, bfa_status_t status)
 static void
 bfa_port_clear_stats_isr(struct bfa_port_s *port, bfa_status_t status)
 {
-	struct timeval tv;
-
 	port->stats_status = status;
 	port->stats_busy   = BFA_FALSE;
 
 	/*
 	* re-initialize time stamp for stats reset
 	*/
-	do_gettimeofday(&tv);
-	port->stats_reset_time = tv.tv_sec;
+	port->stats_reset_time = ktime_get_seconds();
 
 	if (port->stats_cbfn) {
 		port->stats_cbfn(port->stats_cbarg, status);
@@ -471,8 +465,6 @@ void
 bfa_port_attach(struct bfa_port_s *port, struct bfa_ioc_s *ioc,
 		 void *dev, struct bfa_trc_mod_s *trcmod)
 {
-	struct timeval tv;
-
 	WARN_ON(!port);
 
 	port->dev    = dev;
@@ -494,8 +486,7 @@ bfa_port_attach(struct bfa_port_s *port, struct bfa_ioc_s *ioc,
 	/*
 	 * initialize time stamp for stats reset
 	 */
-	do_gettimeofday(&tv);
-	port->stats_reset_time = tv.tv_sec;
+	port->stats_reset_time = ktime_get_seconds();
 
 	bfa_trc(port, 0);
 }
diff --git a/drivers/scsi/bfa/bfa_port.h b/drivers/scsi/bfa/bfa_port.h
index 26dc1bf14c85..0c3b200243ca 100644
--- a/drivers/scsi/bfa/bfa_port.h
+++ b/drivers/scsi/bfa/bfa_port.h
@@ -36,7 +36,7 @@ struct bfa_port_s {
 	bfa_port_stats_cbfn_t		stats_cbfn;
 	void				*stats_cbarg;
 	bfa_status_t			stats_status;
-	u32			stats_reset_time;
+	time64_t			stats_reset_time;
 	union bfa_port_stats_u		*stats;
 	struct bfa_dma_s		stats_dma;
 	bfa_boolean_t			endis_pending;
diff --git a/drivers/scsi/bfa/bfa_svc.c b/drivers/scsi/bfa/bfa_svc.c
index e640223bab3c..6fc34fb20f00 100644
--- a/drivers/scsi/bfa/bfa_svc.c
+++ b/drivers/scsi/bfa/bfa_svc.c
@@ -288,18 +288,6 @@ plkd_validate_logrec(struct bfa_plog_rec_s *pl_rec)
 	return 0;
 }
 
-static u64
-bfa_get_log_time(void)
-{
-	u64 system_time = 0;
-	struct timeval tv;
-	do_gettimeofday(&tv);
-
-	/* We are interested in seconds only. */
-	system_time = tv.tv_sec;
-	return system_time;
-}
-
 static void
 bfa_plog_add(struct bfa_plog_s *plog, struct bfa_plog_rec_s *pl_rec)
 {
@@ -320,7 +308,7 @@ bfa_plog_add(struct bfa_plog_s *plog, struct bfa_plog_rec_s *pl_rec)
 
 	memcpy(pl_recp, pl_rec, sizeof(struct bfa_plog_rec_s));
 
-	pl_recp->tv = bfa_get_log_time();
+	pl_recp->tv = ktime_get_real_seconds();
 	BFA_PL_LOG_REC_INCR(plog->tail);
 
 	if (plog->head == plog->tail)
@@ -350,8 +338,8 @@ bfa_plog_str(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
 		lp.eid = event;
 		lp.log_type = BFA_PL_LOG_TYPE_STRING;
 		lp.misc = misc;
-		strncpy(lp.log_entry.string_log, log_str,
-			BFA_PL_STRING_LOG_SZ - 1);
+		strlcpy(lp.log_entry.string_log, log_str,
+			BFA_PL_STRING_LOG_SZ);
 		lp.log_entry.string_log[BFA_PL_STRING_LOG_SZ - 1] = '\0';
 		bfa_plog_add(plog, &lp);
 	}
@@ -3047,7 +3035,6 @@ bfa_fcport_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
 	struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(bfa);
 	struct bfa_port_cfg_s *port_cfg = &fcport->cfg;
 	struct bfa_fcport_ln_s *ln = &fcport->ln;
-	struct timeval tv;
 
 	fcport->bfa = bfa;
 	ln->fcport = fcport;
@@ -3060,8 +3047,7 @@ bfa_fcport_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
 	/*
 	 * initialize time stamp for stats reset
 	 */
-	do_gettimeofday(&tv);
-	fcport->stats_reset_time = tv.tv_sec;
+	fcport->stats_reset_time = ktime_get_seconds();
 	fcport->stats_dma_ready = BFA_FALSE;
 
 	/*
@@ -3295,9 +3281,7 @@ __bfa_cb_fcport_stats_get(void *cbarg, bfa_boolean_t complete)
 	union bfa_fcport_stats_u *ret;
 
 	if (complete) {
-		struct timeval tv;
-		if (fcport->stats_status == BFA_STATUS_OK)
-			do_gettimeofday(&tv);
+		time64_t time = ktime_get_seconds();
 
 		list_for_each_safe(qe, qen, &fcport->stats_pending_q) {
 			bfa_q_deq(&fcport->stats_pending_q, &qe);
@@ -3312,7 +3296,7 @@ __bfa_cb_fcport_stats_get(void *cbarg, bfa_boolean_t complete)
 					bfa_fcport_fcoe_stats_swap(&ret->fcoe,
 							&fcport->stats->fcoe);
 					ret->fcoe.secs_reset =
-					tv.tv_sec - fcport->stats_reset_time;
+						time - fcport->stats_reset_time;
 				}
 			}
 			bfa_cb_queue_status(fcport->bfa, &cb->hcb_qe,
@@ -3373,13 +3357,10 @@ __bfa_cb_fcport_stats_clr(void *cbarg, bfa_boolean_t complete)
 	struct list_head *qe, *qen;
 
 	if (complete) {
-		struct timeval tv;
-
 		/*
 		 * re-initialize time stamp for stats reset
 		 */
-		do_gettimeofday(&tv);
-		fcport->stats_reset_time = tv.tv_sec;
+		fcport->stats_reset_time = ktime_get_seconds();
 		list_for_each_safe(qe, qen, &fcport->statsclr_pending_q) {
 			bfa_q_deq(&fcport->statsclr_pending_q, &qe);
 			cb = (struct bfa_cb_pending_q_s *)qe;
@@ -6148,13 +6129,13 @@ bfa_fcdiag_lb_is_running(struct bfa_s *bfa)
 /*
  *	D-port
  */
-#define bfa_dport_result_start(__dport, __mode) do {			\
-		(__dport)->result.start_time = bfa_get_log_time();	\
-		(__dport)->result.status = DPORT_TEST_ST_INPRG;		\
-		(__dport)->result.mode = (__mode);			\
-		(__dport)->result.rp_pwwn = (__dport)->rp_pwwn;		\
-		(__dport)->result.rp_nwwn = (__dport)->rp_nwwn;		\
-		(__dport)->result.lpcnt = (__dport)->lpcnt;		\
+#define bfa_dport_result_start(__dport, __mode) do {				\
+		(__dport)->result.start_time = ktime_get_real_seconds();	\
+		(__dport)->result.status = DPORT_TEST_ST_INPRG;			\
+		(__dport)->result.mode = (__mode);				\
+		(__dport)->result.rp_pwwn = (__dport)->rp_pwwn;			\
+		(__dport)->result.rp_nwwn = (__dport)->rp_nwwn;			\
+		(__dport)->result.lpcnt = (__dport)->lpcnt;			\
 } while (0)
 
 static bfa_boolean_t bfa_dport_send_req(struct bfa_dport_s *dport,
@@ -6588,7 +6569,7 @@ bfa_dport_scn(struct bfa_dport_s *dport, struct bfi_diag_dport_scn_s *msg)
 
 	switch (dport->i2hmsg.scn.state) {
 	case BFI_DPORT_SCN_TESTCOMP:
-		dport->result.end_time = bfa_get_log_time();
+		dport->result.end_time = ktime_get_real_seconds();
 		bfa_trc(dport->bfa, dport->result.end_time);
 
 		dport->result.status = msg->info.testcomp.status;
@@ -6635,7 +6616,7 @@ bfa_dport_scn(struct bfa_dport_s *dport, struct bfi_diag_dport_scn_s *msg)
 	case BFI_DPORT_SCN_SUBTESTSTART:
 		subtesttype = msg->info.teststart.type;
 		dport->result.subtest[subtesttype].start_time =
-			bfa_get_log_time();
+			ktime_get_real_seconds();
 		dport->result.subtest[subtesttype].status =
 			DPORT_TEST_ST_INPRG;
 
diff --git a/drivers/scsi/bfa/bfa_svc.h b/drivers/scsi/bfa/bfa_svc.h
index ea2278bc78a8..7e8fb6231d49 100644
--- a/drivers/scsi/bfa/bfa_svc.h
+++ b/drivers/scsi/bfa/bfa_svc.h
@@ -505,7 +505,7 @@ struct bfa_fcport_s {
 	struct list_head	stats_pending_q;
 	struct list_head	statsclr_pending_q;
 	bfa_boolean_t		stats_qfull;
-	u32		stats_reset_time; /*  stats reset time stamp */
+	time64_t		stats_reset_time; /*  stats reset time stamp */
 	bfa_boolean_t		diag_busy; /*  diag busy status */
 	bfa_boolean_t		beacon; /*  port beacon status */
 	bfa_boolean_t		link_e2e_beacon; /*  link beacon status */
diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index cf0466686804..bd7e6a6fc1f1 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -610,13 +610,12 @@ bfad_hal_mem_alloc(struct bfad_s *bfad)
 	/* Iterate through the KVA meminfo queue */
 	list_for_each(km_qe, &kva_info->qe) {
 		kva_elem = (struct bfa_mem_kva_s *) km_qe;
-		kva_elem->kva = vmalloc(kva_elem->mem_len);
+		kva_elem->kva = vzalloc(kva_elem->mem_len);
 		if (kva_elem->kva == NULL) {
 			bfad_hal_mem_release(bfad);
 			rc = BFA_STATUS_ENOMEM;
 			goto ext;
 		}
-		memset(kva_elem->kva, 0, kva_elem->mem_len);
 	}
 
 	/* Iterate through the DMA meminfo queue */
@@ -981,20 +980,20 @@ bfad_start_ops(struct bfad_s *bfad) {
 
 	/* Fill the driver_info info to fcs*/
 	memset(&driver_info, 0, sizeof(driver_info));
-	strncpy(driver_info.version, BFAD_DRIVER_VERSION,
-		sizeof(driver_info.version) - 1);
+	strlcpy(driver_info.version, BFAD_DRIVER_VERSION,
+		sizeof(driver_info.version));
 	if (host_name)
-		strncpy(driver_info.host_machine_name, host_name,
-			sizeof(driver_info.host_machine_name) - 1);
+		strlcpy(driver_info.host_machine_name, host_name,
+			sizeof(driver_info.host_machine_name));
 	if (os_name)
-		strncpy(driver_info.host_os_name, os_name,
-			sizeof(driver_info.host_os_name) - 1);
+		strlcpy(driver_info.host_os_name, os_name,
+			sizeof(driver_info.host_os_name));
 	if (os_patch)
-		strncpy(driver_info.host_os_patch, os_patch,
-			sizeof(driver_info.host_os_patch) - 1);
+		strlcpy(driver_info.host_os_patch, os_patch,
+			sizeof(driver_info.host_os_patch));
 
-	strncpy(driver_info.os_device_name, bfad->pci_name,
-		sizeof(driver_info.os_device_name) - 1);
+	strlcpy(driver_info.os_device_name, bfad->pci_name,
+		sizeof(driver_info.os_device_name));
 
 	/* FCS driver info init */
 	spin_lock_irqsave(&bfad->bfad_lock, flags);
diff --git a/drivers/scsi/bfa/bfad_attr.c b/drivers/scsi/bfa/bfad_attr.c
index 13db3b7bc873..d4d276c757ea 100644
--- a/drivers/scsi/bfa/bfad_attr.c
+++ b/drivers/scsi/bfa/bfad_attr.c
@@ -487,7 +487,6 @@ bfad_im_vport_delete(struct fc_vport *fc_vport)
 	struct bfad_im_port_s *im_port =
 			(struct bfad_im_port_s *) vport->drv_port.im_port;
 	struct bfad_s *bfad = im_port->bfad;
-	struct bfad_port_s *port;
 	struct bfa_fcs_vport_s *fcs_vport;
 	struct Scsi_Host *vshost;
 	wwn_t   pwwn;
@@ -502,8 +501,6 @@ bfad_im_vport_delete(struct fc_vport *fc_vport)
 		return 0;
 	}
 
-	port = im_port->port;
-
 	vshost = vport->drv_port.im_port->shost;
 	u64_to_wwn(fc_host_port_name(vshost), (u8 *)&pwwn);
 
@@ -843,7 +840,7 @@ bfad_im_symbolic_name_show(struct device *dev, struct device_attribute *attr,
 	char symname[BFA_SYMNAME_MAXLEN];
 
 	bfa_fcs_lport_get_attr(&bfad->bfa_fcs.fabric.bport, &port_attr);
-	strncpy(symname, port_attr.port_cfg.sym_name.symname,
+	strlcpy(symname, port_attr.port_cfg.sym_name.symname,
 			BFA_SYMNAME_MAXLEN);
 	return snprintf(buf, PAGE_SIZE, "%s\n", symname);
 }
diff --git a/drivers/scsi/bfa/bfad_bsg.c b/drivers/scsi/bfa/bfad_bsg.c
index b2fa195adc7a..3976e787ba64 100644
--- a/drivers/scsi/bfa/bfad_bsg.c
+++ b/drivers/scsi/bfa/bfad_bsg.c
@@ -127,7 +127,7 @@ bfad_iocmd_ioc_get_attr(struct bfad_s *bfad, void *cmd)
 
 	/* fill in driver attr info */
 	strcpy(iocmd->ioc_attr.driver_attr.driver, BFAD_DRIVER_NAME);
-	strncpy(iocmd->ioc_attr.driver_attr.driver_ver,
+	strlcpy(iocmd->ioc_attr.driver_attr.driver_ver,
 		BFAD_DRIVER_VERSION, BFA_VERSION_LEN);
 	strcpy(iocmd->ioc_attr.driver_attr.fw_ver,
 		iocmd->ioc_attr.adapter_attr.fw_ver);
@@ -315,9 +315,9 @@ bfad_iocmd_port_get_attr(struct bfad_s *bfad, void *cmd)
 	iocmd->attr.port_type = port_attr.port_type;
 	iocmd->attr.loopback = port_attr.loopback;
 	iocmd->attr.authfail = port_attr.authfail;
-	strncpy(iocmd->attr.port_symname.symname,
+	strlcpy(iocmd->attr.port_symname.symname,
 		port_attr.port_cfg.sym_name.symname,
-		sizeof(port_attr.port_cfg.sym_name.symname));
+		sizeof(iocmd->attr.port_symname.symname));
 
 	iocmd->status = BFA_STATUS_OK;
 	return 0;
@@ -2094,13 +2094,11 @@ bfad_iocmd_fcpim_cfg_profile(struct bfad_s *bfad, void *cmd, unsigned int v_cmd)
 {
 	struct bfa_bsg_fcpim_profile_s *iocmd =
 				(struct bfa_bsg_fcpim_profile_s *)cmd;
-	struct timeval  tv;
 	unsigned long	flags;
 
-	do_gettimeofday(&tv);
 	spin_lock_irqsave(&bfad->bfad_lock, flags);
 	if (v_cmd == IOCMD_FCPIM_PROFILE_ON)
-		iocmd->status = bfa_fcpim_profile_on(&bfad->bfa, tv.tv_sec);
+		iocmd->status = bfa_fcpim_profile_on(&bfad->bfa, ktime_get_real_seconds());
 	else if (v_cmd == IOCMD_FCPIM_PROFILE_OFF)
 		iocmd->status = bfa_fcpim_profile_off(&bfad->bfa);
 	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
diff --git a/drivers/scsi/bfa/bfad_debugfs.c b/drivers/scsi/bfa/bfad_debugfs.c
index 05f523971348..349cfe7d055e 100644
--- a/drivers/scsi/bfa/bfad_debugfs.c
+++ b/drivers/scsi/bfa/bfad_debugfs.c
@@ -81,7 +81,7 @@ bfad_debugfs_open_fwtrc(struct inode *inode, struct file *file)
 
 	fw_debug->buffer_len = sizeof(struct bfa_trc_mod_s);
 
-	fw_debug->debug_buffer = vmalloc(fw_debug->buffer_len);
+	fw_debug->debug_buffer = vzalloc(fw_debug->buffer_len);
 	if (!fw_debug->debug_buffer) {
 		kfree(fw_debug);
 		printk(KERN_INFO "bfad[%d]: Failed to allocate fwtrc buffer\n",
@@ -89,8 +89,6 @@ bfad_debugfs_open_fwtrc(struct inode *inode, struct file *file)
 		return -ENOMEM;
 	}
 
-	memset(fw_debug->debug_buffer, 0, fw_debug->buffer_len);
-
 	spin_lock_irqsave(&bfad->bfad_lock, flags);
 	rc = bfa_ioc_debug_fwtrc(&bfad->bfa.ioc,
 			fw_debug->debug_buffer,
@@ -125,7 +123,7 @@ bfad_debugfs_open_fwsave(struct inode *inode, struct file *file)
 
 	fw_debug->buffer_len = sizeof(struct bfa_trc_mod_s);
 
-	fw_debug->debug_buffer = vmalloc(fw_debug->buffer_len);
+	fw_debug->debug_buffer = vzalloc(fw_debug->buffer_len);
 	if (!fw_debug->debug_buffer) {
 		kfree(fw_debug);
 		printk(KERN_INFO "bfad[%d]: Failed to allocate fwsave buffer\n",
@@ -133,8 +131,6 @@ bfad_debugfs_open_fwsave(struct inode *inode, struct file *file)
 		return -ENOMEM;
 	}
 
-	memset(fw_debug->debug_buffer, 0, fw_debug->buffer_len);
-
 	spin_lock_irqsave(&bfad->bfad_lock, flags);
 	rc = bfa_ioc_debug_fwsave(&bfad->bfa.ioc,
 			fw_debug->debug_buffer,
diff --git a/drivers/scsi/bfa/bfad_im.h b/drivers/scsi/bfa/bfad_im.h
index 06ce4ba2b7bc..af66275570c3 100644
--- a/drivers/scsi/bfa/bfad_im.h
+++ b/drivers/scsi/bfa/bfad_im.h
@@ -141,16 +141,28 @@ struct bfad_im_s {
 } while (0)
 
 /* post fc_host vendor event */
-#define bfad_im_post_vendor_event(_entry, _drv, _cnt, _cat, _evt) do {	      \
-	do_gettimeofday(&(_entry)->aen_tv);				      \
-	(_entry)->bfad_num = (_drv)->inst_no;				      \
-	(_entry)->seq_num = (_cnt);					      \
-	(_entry)->aen_category = (_cat);				      \
-	(_entry)->aen_type = (_evt);					      \
-	if ((_drv)->bfad_flags & BFAD_FC4_PROBE_DONE)			      \
-		queue_work((_drv)->im->drv_workq,			      \
-			   &(_drv)->im->aen_im_notify_work);		      \
-} while (0)
+static inline void bfad_im_post_vendor_event(struct bfa_aen_entry_s *entry,
+					     struct bfad_s *drv, int cnt,
+					     enum bfa_aen_category cat,
+					     enum bfa_ioc_aen_event evt)
+{
+	struct timespec64 ts;
+
+	ktime_get_real_ts64(&ts);
+	/*
+	 * 'unsigned long aen_tv_sec' overflows in y2106 on 32-bit
+	 * architectures, or in 2038 if user space interprets it
+	 * as 'signed'.
+	 */
+	entry->aen_tv_sec = ts.tv_sec;
+	entry->aen_tv_usec = ts.tv_nsec / NSEC_PER_USEC;
+	entry->bfad_num = drv->inst_no;
+	entry->seq_num = cnt;
+	entry->aen_category = cat;
+	entry->aen_type = evt;
+	if (drv->bfad_flags & BFAD_FC4_PROBE_DONE)
+		queue_work(drv->im->drv_workq, &drv->im->aen_im_notify_work);
+}
 
 struct Scsi_Host *bfad_scsi_host_alloc(struct bfad_im_port_s *im_port,
 				struct bfad_s *);
diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index e6b9de7d41ac..65de1d0578a1 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -1552,7 +1552,7 @@ static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
 
 	rc = bnx2fc_shost_config(lport, parent);
 	if (rc) {
-		printk(KERN_ERR PFX "Couldnt configure shost for %s\n",
+		printk(KERN_ERR PFX "Couldn't configure shost for %s\n",
 			interface->netdev->name);
 		goto lp_config_err;
 	}
@@ -1560,7 +1560,7 @@ static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
 	/* Initialize the libfc library */
 	rc = bnx2fc_libfc_config(lport);
 	if (rc) {
-		printk(KERN_ERR PFX "Couldnt configure libfc\n");
+		printk(KERN_ERR PFX "Couldn't configure libfc\n");
 		goto shost_err;
 	}
 	fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
diff --git a/drivers/scsi/bnx2fc/bnx2fc_hwi.c b/drivers/scsi/bnx2fc/bnx2fc_hwi.c
index 26de61d65a4d..e8ae4d671d23 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_hwi.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_hwi.c
@@ -1857,16 +1857,15 @@ int bnx2fc_setup_task_ctx(struct bnx2fc_hba *hba)
 	 * entries. Hence the limit with one page is 8192 task context
 	 * entries.
 	 */
-	hba->task_ctx_bd_tbl = dma_alloc_coherent(&hba->pcidev->dev,
-						  PAGE_SIZE,
-						  &hba->task_ctx_bd_dma,
-						  GFP_KERNEL);
+	hba->task_ctx_bd_tbl = dma_zalloc_coherent(&hba->pcidev->dev,
+						   PAGE_SIZE,
+						   &hba->task_ctx_bd_dma,
+						   GFP_KERNEL);
 	if (!hba->task_ctx_bd_tbl) {
 		printk(KERN_ERR PFX "unable to allocate task context BDT\n");
 		rc = -1;
 		goto out;
 	}
-	memset(hba->task_ctx_bd_tbl, 0, PAGE_SIZE);
 
 	/*
 	 * Allocate task_ctx which is an array of pointers pointing to
@@ -1895,16 +1894,15 @@ int bnx2fc_setup_task_ctx(struct bnx2fc_hba *hba)
 	task_ctx_bdt = (struct regpair *)hba->task_ctx_bd_tbl;
 	for (i = 0; i < task_ctx_arr_sz; i++) {
 
-		hba->task_ctx[i] = dma_alloc_coherent(&hba->pcidev->dev,
-						      PAGE_SIZE,
-						      &hba->task_ctx_dma[i],
-						      GFP_KERNEL);
+		hba->task_ctx[i] = dma_zalloc_coherent(&hba->pcidev->dev,
+						       PAGE_SIZE,
+						       &hba->task_ctx_dma[i],
+						       GFP_KERNEL);
 		if (!hba->task_ctx[i]) {
 			printk(KERN_ERR PFX "unable to alloc task context\n");
 			rc = -1;
 			goto out3;
 		}
-		memset(hba->task_ctx[i], 0, PAGE_SIZE);
 		addr = (u64)hba->task_ctx_dma[i];
 		task_ctx_bdt->hi = cpu_to_le32((u64)addr >> 32);
 		task_ctx_bdt->lo = cpu_to_le32((u32)addr);
@@ -2033,28 +2031,23 @@ static int bnx2fc_allocate_hash_table(struct bnx2fc_hba *hba)
 	}
 
 	for (i = 0; i < segment_count; ++i) {
-		hba->hash_tbl_segments[i] =
-			dma_alloc_coherent(&hba->pcidev->dev,
-					   BNX2FC_HASH_TBL_CHUNK_SIZE,
-					   &dma_segment_array[i],
-					   GFP_KERNEL);
+		hba->hash_tbl_segments[i] = dma_zalloc_coherent(&hba->pcidev->dev,
+								BNX2FC_HASH_TBL_CHUNK_SIZE,
+								&dma_segment_array[i],
+								GFP_KERNEL);
 		if (!hba->hash_tbl_segments[i]) {
 			printk(KERN_ERR PFX "hash segment alloc failed\n");
 			goto cleanup_dma;
 		}
-		memset(hba->hash_tbl_segments[i], 0,
-		       BNX2FC_HASH_TBL_CHUNK_SIZE);
 	}
 
-	hba->hash_tbl_pbl = dma_alloc_coherent(&hba->pcidev->dev,
-					       PAGE_SIZE,
-					       &hba->hash_tbl_pbl_dma,
-					       GFP_KERNEL);
+	hba->hash_tbl_pbl = dma_zalloc_coherent(&hba->pcidev->dev, PAGE_SIZE,
+						&hba->hash_tbl_pbl_dma,
+						GFP_KERNEL);
 	if (!hba->hash_tbl_pbl) {
 		printk(KERN_ERR PFX "hash table pbl alloc failed\n");
 		goto cleanup_dma;
 	}
-	memset(hba->hash_tbl_pbl, 0, PAGE_SIZE);
 
 	pbl = hba->hash_tbl_pbl;
 	for (i = 0; i < segment_count; ++i) {
@@ -2111,27 +2104,26 @@ int bnx2fc_setup_fw_resc(struct bnx2fc_hba *hba)
 		return -ENOMEM;
 
 	mem_size = BNX2FC_NUM_MAX_SESS * sizeof(struct regpair);
-	hba->t2_hash_tbl_ptr = dma_alloc_coherent(&hba->pcidev->dev, mem_size,
-						  &hba->t2_hash_tbl_ptr_dma,
-						  GFP_KERNEL);
+	hba->t2_hash_tbl_ptr = dma_zalloc_coherent(&hba->pcidev->dev,
+						   mem_size,
+						   &hba->t2_hash_tbl_ptr_dma,
+						   GFP_KERNEL);
 	if (!hba->t2_hash_tbl_ptr) {
 		printk(KERN_ERR PFX "unable to allocate t2 hash table ptr\n");
 		bnx2fc_free_fw_resc(hba);
 		return -ENOMEM;
 	}
-	memset(hba->t2_hash_tbl_ptr, 0x00, mem_size);
 
 	mem_size = BNX2FC_NUM_MAX_SESS *
 				sizeof(struct fcoe_t2_hash_table_entry);
-	hba->t2_hash_tbl = dma_alloc_coherent(&hba->pcidev->dev, mem_size,
-					      &hba->t2_hash_tbl_dma,
-					      GFP_KERNEL);
+	hba->t2_hash_tbl = dma_zalloc_coherent(&hba->pcidev->dev, mem_size,
+					       &hba->t2_hash_tbl_dma,
+					       GFP_KERNEL);
 	if (!hba->t2_hash_tbl) {
 		printk(KERN_ERR PFX "unable to allocate t2 hash table\n");
 		bnx2fc_free_fw_resc(hba);
 		return -ENOMEM;
 	}
-	memset(hba->t2_hash_tbl, 0x00, mem_size);
 	for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
 		addr = (unsigned long) hba->t2_hash_tbl_dma +
 			 ((i+1) * sizeof(struct fcoe_t2_hash_table_entry));
@@ -2148,16 +2140,14 @@ int bnx2fc_setup_fw_resc(struct bnx2fc_hba *hba)
 		return -ENOMEM;
 	}
 
-	hba->stats_buffer = dma_alloc_coherent(&hba->pcidev->dev,
-					       PAGE_SIZE,
-					       &hba->stats_buf_dma,
-					       GFP_KERNEL);
+	hba->stats_buffer = dma_zalloc_coherent(&hba->pcidev->dev, PAGE_SIZE,
+						&hba->stats_buf_dma,
+						GFP_KERNEL);
 	if (!hba->stats_buffer) {
 		printk(KERN_ERR PFX "unable to alloc Stats Buffer\n");
 		bnx2fc_free_fw_resc(hba);
 		return -ENOMEM;
 	}
-	memset(hba->stats_buffer, 0x00, PAGE_SIZE);
 
 	return 0;
 }
diff --git a/drivers/scsi/bnx2fc/bnx2fc_tgt.c b/drivers/scsi/bnx2fc/bnx2fc_tgt.c
index a8ae1a019eea..e3d1c7c440c8 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_tgt.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_tgt.c
@@ -672,56 +672,52 @@ static int bnx2fc_alloc_session_resc(struct bnx2fc_hba *hba,
 	tgt->sq_mem_size = (tgt->sq_mem_size + (CNIC_PAGE_SIZE - 1)) &
 			   CNIC_PAGE_MASK;
 
-	tgt->sq = dma_alloc_coherent(&hba->pcidev->dev, tgt->sq_mem_size,
-				     &tgt->sq_dma, GFP_KERNEL);
+	tgt->sq = dma_zalloc_coherent(&hba->pcidev->dev, tgt->sq_mem_size,
+				      &tgt->sq_dma, GFP_KERNEL);
 	if (!tgt->sq) {
 		printk(KERN_ERR PFX "unable to allocate SQ memory %d\n",
 			tgt->sq_mem_size);
 		goto mem_alloc_failure;
 	}
-	memset(tgt->sq, 0, tgt->sq_mem_size);
 
 	/* Allocate and map CQ */
 	tgt->cq_mem_size = tgt->max_cqes * BNX2FC_CQ_WQE_SIZE;
 	tgt->cq_mem_size = (tgt->cq_mem_size + (CNIC_PAGE_SIZE - 1)) &
 			   CNIC_PAGE_MASK;
 
-	tgt->cq = dma_alloc_coherent(&hba->pcidev->dev, tgt->cq_mem_size,
-				     &tgt->cq_dma, GFP_KERNEL);
+	tgt->cq = dma_zalloc_coherent(&hba->pcidev->dev, tgt->cq_mem_size,
+				      &tgt->cq_dma, GFP_KERNEL);
 	if (!tgt->cq) {
 		printk(KERN_ERR PFX "unable to allocate CQ memory %d\n",
 			tgt->cq_mem_size);
 		goto mem_alloc_failure;
 	}
-	memset(tgt->cq, 0, tgt->cq_mem_size);
 
 	/* Allocate and map RQ and RQ PBL */
 	tgt->rq_mem_size = tgt->max_rqes * BNX2FC_RQ_WQE_SIZE;
 	tgt->rq_mem_size = (tgt->rq_mem_size + (CNIC_PAGE_SIZE - 1)) &
 			   CNIC_PAGE_MASK;
 
-	tgt->rq = dma_alloc_coherent(&hba->pcidev->dev, tgt->rq_mem_size,
-					&tgt->rq_dma, GFP_KERNEL);
+	tgt->rq = dma_zalloc_coherent(&hba->pcidev->dev, tgt->rq_mem_size,
+				      &tgt->rq_dma, GFP_KERNEL);
 	if (!tgt->rq) {
 		printk(KERN_ERR PFX "unable to allocate RQ memory %d\n",
 			tgt->rq_mem_size);
 		goto mem_alloc_failure;
 	}
-	memset(tgt->rq, 0, tgt->rq_mem_size);
 
 	tgt->rq_pbl_size = (tgt->rq_mem_size / CNIC_PAGE_SIZE) * sizeof(void *);
 	tgt->rq_pbl_size = (tgt->rq_pbl_size + (CNIC_PAGE_SIZE - 1)) &
 			   CNIC_PAGE_MASK;
 
-	tgt->rq_pbl = dma_alloc_coherent(&hba->pcidev->dev, tgt->rq_pbl_size,
-					 &tgt->rq_pbl_dma, GFP_KERNEL);
+	tgt->rq_pbl = dma_zalloc_coherent(&hba->pcidev->dev, tgt->rq_pbl_size,
+					  &tgt->rq_pbl_dma, GFP_KERNEL);
 	if (!tgt->rq_pbl) {
 		printk(KERN_ERR PFX "unable to allocate RQ PBL %d\n",
 			tgt->rq_pbl_size);
 		goto mem_alloc_failure;
 	}
 
-	memset(tgt->rq_pbl, 0, tgt->rq_pbl_size);
 	num_pages = tgt->rq_mem_size / CNIC_PAGE_SIZE;
 	page = tgt->rq_dma;
 	pbl = (u32 *)tgt->rq_pbl;
@@ -739,44 +735,43 @@ static int bnx2fc_alloc_session_resc(struct bnx2fc_hba *hba,
 	tgt->xferq_mem_size = (tgt->xferq_mem_size + (CNIC_PAGE_SIZE - 1)) &
 			       CNIC_PAGE_MASK;
 
-	tgt->xferq = dma_alloc_coherent(&hba->pcidev->dev, tgt->xferq_mem_size,
-					&tgt->xferq_dma, GFP_KERNEL);
+	tgt->xferq = dma_zalloc_coherent(&hba->pcidev->dev,
+					 tgt->xferq_mem_size, &tgt->xferq_dma,
+					 GFP_KERNEL);
 	if (!tgt->xferq) {
 		printk(KERN_ERR PFX "unable to allocate XFERQ %d\n",
 			tgt->xferq_mem_size);
 		goto mem_alloc_failure;
 	}
-	memset(tgt->xferq, 0, tgt->xferq_mem_size);
 
 	/* Allocate and map CONFQ & CONFQ PBL */
 	tgt->confq_mem_size = tgt->max_sqes * BNX2FC_CONFQ_WQE_SIZE;
 	tgt->confq_mem_size = (tgt->confq_mem_size + (CNIC_PAGE_SIZE - 1)) &
 			       CNIC_PAGE_MASK;
 
-	tgt->confq = dma_alloc_coherent(&hba->pcidev->dev, tgt->confq_mem_size,
-					&tgt->confq_dma, GFP_KERNEL);
+	tgt->confq = dma_zalloc_coherent(&hba->pcidev->dev,
+					 tgt->confq_mem_size, &tgt->confq_dma,
+					 GFP_KERNEL);
 	if (!tgt->confq) {
 		printk(KERN_ERR PFX "unable to allocate CONFQ %d\n",
 			tgt->confq_mem_size);
 		goto mem_alloc_failure;
 	}
-	memset(tgt->confq, 0, tgt->confq_mem_size);
 
 	tgt->confq_pbl_size =
 		(tgt->confq_mem_size / CNIC_PAGE_SIZE) * sizeof(void *);
 	tgt->confq_pbl_size =
 		(tgt->confq_pbl_size + (CNIC_PAGE_SIZE - 1)) & CNIC_PAGE_MASK;
 
-	tgt->confq_pbl = dma_alloc_coherent(&hba->pcidev->dev,
-					    tgt->confq_pbl_size,
-					    &tgt->confq_pbl_dma, GFP_KERNEL);
+	tgt->confq_pbl = dma_zalloc_coherent(&hba->pcidev->dev,
+					     tgt->confq_pbl_size,
+					     &tgt->confq_pbl_dma, GFP_KERNEL);
 	if (!tgt->confq_pbl) {
 		printk(KERN_ERR PFX "unable to allocate CONFQ PBL %d\n",
 			tgt->confq_pbl_size);
 		goto mem_alloc_failure;
 	}
 
-	memset(tgt->confq_pbl, 0, tgt->confq_pbl_size);
 	num_pages = tgt->confq_mem_size / CNIC_PAGE_SIZE;
 	page = tgt->confq_dma;
 	pbl = (u32 *)tgt->confq_pbl;
@@ -792,15 +787,14 @@ static int bnx2fc_alloc_session_resc(struct bnx2fc_hba *hba,
 	/* Allocate and map ConnDB */
 	tgt->conn_db_mem_size = sizeof(struct fcoe_conn_db);
 
-	tgt->conn_db = dma_alloc_coherent(&hba->pcidev->dev,
-					  tgt->conn_db_mem_size,
-					  &tgt->conn_db_dma, GFP_KERNEL);
+	tgt->conn_db = dma_zalloc_coherent(&hba->pcidev->dev,
+					   tgt->conn_db_mem_size,
+					   &tgt->conn_db_dma, GFP_KERNEL);
 	if (!tgt->conn_db) {
 		printk(KERN_ERR PFX "unable to allocate conn_db %d\n",
 						tgt->conn_db_mem_size);
 		goto mem_alloc_failure;
 	}
-	memset(tgt->conn_db, 0, tgt->conn_db_mem_size);
 
 
 	/* Allocate and map LCQ */
@@ -808,15 +802,14 @@ static int bnx2fc_alloc_session_resc(struct bnx2fc_hba *hba,
 	tgt->lcq_mem_size = (tgt->lcq_mem_size + (CNIC_PAGE_SIZE - 1)) &
 			     CNIC_PAGE_MASK;
 
-	tgt->lcq = dma_alloc_coherent(&hba->pcidev->dev, tgt->lcq_mem_size,
-				      &tgt->lcq_dma, GFP_KERNEL);
+	tgt->lcq = dma_zalloc_coherent(&hba->pcidev->dev, tgt->lcq_mem_size,
+				       &tgt->lcq_dma, GFP_KERNEL);
 
 	if (!tgt->lcq) {
 		printk(KERN_ERR PFX "unable to allocate lcq %d\n",
 		       tgt->lcq_mem_size);
 		goto mem_alloc_failure;
 	}
-	memset(tgt->lcq, 0, tgt->lcq_mem_size);
 
 	tgt->conn_db->rq_prod = 0x8000;
 
diff --git a/drivers/scsi/bnx2i/bnx2i_hwi.c b/drivers/scsi/bnx2i/bnx2i_hwi.c
index e0640e0f259f..8f03a869ac98 100644
--- a/drivers/scsi/bnx2i/bnx2i_hwi.c
+++ b/drivers/scsi/bnx2i/bnx2i_hwi.c
@@ -547,12 +547,9 @@ int bnx2i_send_iscsi_nopout(struct bnx2i_conn *bnx2i_conn,
 	nopout_wqe->op_attr = ISCSI_FLAG_CMD_FINAL;
 	memcpy(nopout_wqe->lun, &nopout_hdr->lun, 8);
 
-	if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) {
-		u32 tmp = nopout_wqe->lun[0];
-		/* 57710 requires LUN field to be swapped */
-		nopout_wqe->lun[0] = nopout_wqe->lun[1];
-		nopout_wqe->lun[1] = tmp;
-	}
+	/* 57710 requires LUN field to be swapped */
+	if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type))
+		swap(nopout_wqe->lun[0], nopout_wqe->lun[1]);
 
 	nopout_wqe->itt = ((u16)task->itt |
 			   (ISCSI_TASK_TYPE_MPATH <<
@@ -1073,15 +1070,14 @@ int bnx2i_alloc_qp_resc(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep)
 
 	/* Allocate memory area for actual SQ element */
 	ep->qp.sq_virt =
-		dma_alloc_coherent(&hba->pcidev->dev, ep->qp.sq_mem_size,
-				   &ep->qp.sq_phys, GFP_KERNEL);
+		dma_zalloc_coherent(&hba->pcidev->dev, ep->qp.sq_mem_size,
+					&ep->qp.sq_phys, GFP_KERNEL);
 	if (!ep->qp.sq_virt) {
 		printk(KERN_ALERT "bnx2i: unable to alloc SQ BD memory %d\n",
 				  ep->qp.sq_mem_size);
 		goto mem_alloc_err;
 	}
 
-	memset(ep->qp.sq_virt, 0x00, ep->qp.sq_mem_size);
 	ep->qp.sq_first_qe = ep->qp.sq_virt;
 	ep->qp.sq_prod_qe = ep->qp.sq_first_qe;
 	ep->qp.sq_cons_qe = ep->qp.sq_first_qe;
@@ -1110,14 +1106,13 @@ int bnx2i_alloc_qp_resc(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep)
 
 	/* Allocate memory area for actual CQ element */
 	ep->qp.cq_virt =
-		dma_alloc_coherent(&hba->pcidev->dev, ep->qp.cq_mem_size,
-				   &ep->qp.cq_phys, GFP_KERNEL);
+		dma_zalloc_coherent(&hba->pcidev->dev, ep->qp.cq_mem_size,
+					&ep->qp.cq_phys, GFP_KERNEL);
 	if (!ep->qp.cq_virt) {
 		printk(KERN_ALERT "bnx2i: unable to alloc CQ BD memory %d\n",
 				  ep->qp.cq_mem_size);
 		goto mem_alloc_err;
 	}
-	memset(ep->qp.cq_virt, 0x00, ep->qp.cq_mem_size);
 
 	ep->qp.cq_first_qe = ep->qp.cq_virt;
 	ep->qp.cq_prod_qe = ep->qp.cq_first_qe;
diff --git a/drivers/scsi/csiostor/csio_init.c b/drivers/scsi/csiostor/csio_init.c
index cb1711a5d7a3..ed2dae657964 100644
--- a/drivers/scsi/csiostor/csio_init.c
+++ b/drivers/scsi/csiostor/csio_init.c
@@ -1258,7 +1258,7 @@ module_init(csio_init);
 module_exit(csio_exit);
 MODULE_AUTHOR(CSIO_DRV_AUTHOR);
 MODULE_DESCRIPTION(CSIO_DRV_DESC);
-MODULE_LICENSE(CSIO_DRV_LICENSE);
+MODULE_LICENSE("Dual BSD/GPL");
 MODULE_DEVICE_TABLE(pci, csio_pci_tbl);
 MODULE_VERSION(CSIO_DRV_VERSION);
 MODULE_FIRMWARE(FW_FNAME_T5);
diff --git a/drivers/scsi/csiostor/csio_init.h b/drivers/scsi/csiostor/csio_init.h
index 96b31e5af91e..20244254325a 100644
--- a/drivers/scsi/csiostor/csio_init.h
+++ b/drivers/scsi/csiostor/csio_init.h
@@ -48,7 +48,6 @@
 #include "csio_hw.h"
 
 #define CSIO_DRV_AUTHOR			"Chelsio Communications"
-#define CSIO_DRV_LICENSE		"Dual BSD/GPL"
 #define CSIO_DRV_DESC			"Chelsio FCoE driver"
 #define CSIO_DRV_VERSION		"1.0.0-ko"
 
diff --git a/drivers/scsi/csiostor/csio_mb.c b/drivers/scsi/csiostor/csio_mb.c
index 931b1d8f9f3e..5f4e0a787bd1 100644
--- a/drivers/scsi/csiostor/csio_mb.c
+++ b/drivers/scsi/csiostor/csio_mb.c
@@ -1216,7 +1216,7 @@ csio_mb_issue(struct csio_hw *hw, struct csio_mb *mbp)
 		/* Queue mbox cmd, if another mbox cmd is active */
 		if (mbp->mb_cbfn == NULL) {
 			rv = -EBUSY;
-			csio_dbg(hw, "Couldnt own Mailbox %x op:0x%x\n",
+			csio_dbg(hw, "Couldn't own Mailbox %x op:0x%x\n",
 				    hw->pfn, *((uint8_t *)mbp->mb));
 
 			goto error_out;
@@ -1244,14 +1244,14 @@ csio_mb_issue(struct csio_hw *hw, struct csio_mb *mbp)
 				rv = owner ? -EBUSY : -ETIMEDOUT;
 
 				csio_dbg(hw,
-					 "Couldnt own Mailbox %x op:0x%x "
+					 "Couldn't own Mailbox %x op:0x%x "
 					 "owner:%x\n",
 					 hw->pfn, *((uint8_t *)mbp->mb), owner);
 				goto error_out;
 			} else {
 				if (mbm->mcurrent == NULL) {
 					csio_err(hw,
-						 "Couldnt own Mailbox %x "
+						 "Couldn't own Mailbox %x "
 						 "op:0x%x owner:%x\n",
 						 hw->pfn, *((uint8_t *)mbp->mb),
 						 owner);
diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c
index ce1336414e0a..3f3af5e74a07 100644
--- a/drivers/scsi/cxgbi/libcxgbi.c
+++ b/drivers/scsi/cxgbi/libcxgbi.c
@@ -1914,7 +1914,7 @@ int cxgbi_conn_alloc_pdu(struct iscsi_task *task, u8 opcode)
 	if (task->sc) {
 		task->hdr = (struct iscsi_hdr *)tdata->skb->data;
 	} else {
-		task->hdr = kzalloc(SKB_TX_ISCSI_PDU_HEADER_MAX, GFP_KERNEL);
+		task->hdr = kzalloc(SKB_TX_ISCSI_PDU_HEADER_MAX, GFP_ATOMIC);
 		if (!task->hdr) {
 			__kfree_skb(tdata->skb);
 			tdata->skb = NULL;
diff --git a/drivers/scsi/cxlflash/Makefile b/drivers/scsi/cxlflash/Makefile
index 9e39866d473b..7ec3f6b55dde 100644
--- a/drivers/scsi/cxlflash/Makefile
+++ b/drivers/scsi/cxlflash/Makefile
@@ -1,2 +1,2 @@
 obj-$(CONFIG_CXLFLASH) += cxlflash.o
-cxlflash-y += main.o superpipe.o lunmgt.o vlun.o
+cxlflash-y += main.o superpipe.o lunmgt.o vlun.o cxl_hw.o
diff --git a/drivers/scsi/cxlflash/backend.h b/drivers/scsi/cxlflash/backend.h
new file mode 100644
index 000000000000..339e42b03c49
--- /dev/null
+++ b/drivers/scsi/cxlflash/backend.h
@@ -0,0 +1,41 @@
+/*
+ * CXL Flash Device Driver
+ *
+ * Written by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation
+ *             Uma Krishnan <ukrishn@linux.vnet.ibm.com>, IBM Corporation
+ *
+ * Copyright (C) 2018 IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+extern const struct cxlflash_backend_ops cxlflash_cxl_ops;
+
+struct cxlflash_backend_ops {
+	struct module *module;
+	void __iomem * (*psa_map)(void *);
+	void (*psa_unmap)(void __iomem *);
+	int (*process_element)(void *);
+	int (*map_afu_irq)(void *, int, irq_handler_t, void *, char *);
+	void (*unmap_afu_irq)(void *, int, void *);
+	int (*start_context)(void *);
+	int (*stop_context)(void *);
+	int (*afu_reset)(void *);
+	void (*set_master)(void *);
+	void * (*get_context)(struct pci_dev *, void *);
+	void * (*dev_context_init)(struct pci_dev *, void *);
+	int (*release_context)(void *);
+	void (*perst_reloads_same_image)(void *, bool);
+	ssize_t (*read_adapter_vpd)(struct pci_dev *, void *, size_t);
+	int (*allocate_afu_irqs)(void *, int);
+	void (*free_afu_irqs)(void *);
+	void * (*create_afu)(struct pci_dev *);
+	struct file * (*get_fd)(void *, struct file_operations *, int *);
+	void * (*fops_get_context)(struct file *);
+	int (*start_work)(void *, u64);
+	int (*fd_mmap)(struct file *, struct vm_area_struct *);
+	int (*fd_release)(struct inode *, struct file *);
+};
diff --git a/drivers/scsi/cxlflash/common.h b/drivers/scsi/cxlflash/common.h
index 6d95e8e147e0..102fd26ca886 100644
--- a/drivers/scsi/cxlflash/common.h
+++ b/drivers/scsi/cxlflash/common.h
@@ -25,6 +25,8 @@
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_device.h>
 
+#include "backend.h"
+
 extern const struct file_operations cxlflash_cxl_fops;
 
 #define MAX_CONTEXT	CXLFLASH_MAX_CONTEXT	/* num contexts per afu */
@@ -114,6 +116,7 @@ enum cxlflash_hwq_mode {
 struct cxlflash_cfg {
 	struct afu *afu;
 
+	const struct cxlflash_backend_ops *ops;
 	struct pci_dev *dev;
 	struct pci_device_id *dev_id;
 	struct Scsi_Host *host;
@@ -129,7 +132,7 @@ struct cxlflash_cfg {
 	int lr_port;
 	atomic_t scan_host_needed;
 
-	struct cxl_afu *cxl_afu;
+	void *afu_cookie;
 
 	atomic_t recovery_threads;
 	struct mutex ctx_recovery_mutex;
@@ -203,8 +206,7 @@ struct hwq {
 	 * fields after this point
 	 */
 	struct afu *afu;
-	struct cxl_context *ctx;
-	struct cxl_ioctl_start_work work;
+	void *ctx_cookie;
 	struct sisl_host_map __iomem *host_map;		/* MC host map */
 	struct sisl_ctrl_map __iomem *ctrl_map;		/* MC control map */
 	ctx_hndl_t ctx_hndl;	/* master's context handle */
diff --git a/drivers/scsi/cxlflash/cxl_hw.c b/drivers/scsi/cxlflash/cxl_hw.c
new file mode 100644
index 000000000000..db1cadad5c5d
--- /dev/null
+++ b/drivers/scsi/cxlflash/cxl_hw.c
@@ -0,0 +1,168 @@
+/*
+ * CXL Flash Device Driver
+ *
+ * Written by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation
+ *             Uma Krishnan <ukrishn@linux.vnet.ibm.com>, IBM Corporation
+ *
+ * Copyright (C) 2018 IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <misc/cxl.h>
+
+#include "backend.h"
+
+/*
+ * The following routines map the cxlflash backend operations to existing CXL
+ * kernel API function and are largely simple shims that provide an abstraction
+ * for converting generic context and AFU cookies into cxl_context or cxl_afu
+ * pointers.
+ */
+
+static void __iomem *cxlflash_psa_map(void *ctx_cookie)
+{
+	return cxl_psa_map(ctx_cookie);
+}
+
+static void cxlflash_psa_unmap(void __iomem *addr)
+{
+	cxl_psa_unmap(addr);
+}
+
+static int cxlflash_process_element(void *ctx_cookie)
+{
+	return cxl_process_element(ctx_cookie);
+}
+
+static int cxlflash_map_afu_irq(void *ctx_cookie, int num,
+				irq_handler_t handler, void *cookie, char *name)
+{
+	return cxl_map_afu_irq(ctx_cookie, num, handler, cookie, name);
+}
+
+static void cxlflash_unmap_afu_irq(void *ctx_cookie, int num, void *cookie)
+{
+	cxl_unmap_afu_irq(ctx_cookie, num, cookie);
+}
+
+static int cxlflash_start_context(void *ctx_cookie)
+{
+	return cxl_start_context(ctx_cookie, 0, NULL);
+}
+
+static int cxlflash_stop_context(void *ctx_cookie)
+{
+	return cxl_stop_context(ctx_cookie);
+}
+
+static int cxlflash_afu_reset(void *ctx_cookie)
+{
+	return cxl_afu_reset(ctx_cookie);
+}
+
+static void cxlflash_set_master(void *ctx_cookie)
+{
+	cxl_set_master(ctx_cookie);
+}
+
+static void *cxlflash_get_context(struct pci_dev *dev, void *afu_cookie)
+{
+	return cxl_get_context(dev);
+}
+
+static void *cxlflash_dev_context_init(struct pci_dev *dev, void *afu_cookie)
+{
+	return cxl_dev_context_init(dev);
+}
+
+static int cxlflash_release_context(void *ctx_cookie)
+{
+	return cxl_release_context(ctx_cookie);
+}
+
+static void cxlflash_perst_reloads_same_image(void *afu_cookie, bool image)
+{
+	cxl_perst_reloads_same_image(afu_cookie, image);
+}
+
+static ssize_t cxlflash_read_adapter_vpd(struct pci_dev *dev,
+					 void *buf, size_t count)
+{
+	return cxl_read_adapter_vpd(dev, buf, count);
+}
+
+static int cxlflash_allocate_afu_irqs(void *ctx_cookie, int num)
+{
+	return cxl_allocate_afu_irqs(ctx_cookie, num);
+}
+
+static void cxlflash_free_afu_irqs(void *ctx_cookie)
+{
+	cxl_free_afu_irqs(ctx_cookie);
+}
+
+static void *cxlflash_create_afu(struct pci_dev *dev)
+{
+	return cxl_pci_to_afu(dev);
+}
+
+static struct file *cxlflash_get_fd(void *ctx_cookie,
+				    struct file_operations *fops, int *fd)
+{
+	return cxl_get_fd(ctx_cookie, fops, fd);
+}
+
+static void *cxlflash_fops_get_context(struct file *file)
+{
+	return cxl_fops_get_context(file);
+}
+
+static int cxlflash_start_work(void *ctx_cookie, u64 irqs)
+{
+	struct cxl_ioctl_start_work work = { 0 };
+
+	work.num_interrupts = irqs;
+	work.flags = CXL_START_WORK_NUM_IRQS;
+
+	return cxl_start_work(ctx_cookie, &work);
+}
+
+static int cxlflash_fd_mmap(struct file *file, struct vm_area_struct *vm)
+{
+	return cxl_fd_mmap(file, vm);
+}
+
+static int cxlflash_fd_release(struct inode *inode, struct file *file)
+{
+	return cxl_fd_release(inode, file);
+}
+
+const struct cxlflash_backend_ops cxlflash_cxl_ops = {
+	.module			= THIS_MODULE,
+	.psa_map		= cxlflash_psa_map,
+	.psa_unmap		= cxlflash_psa_unmap,
+	.process_element	= cxlflash_process_element,
+	.map_afu_irq		= cxlflash_map_afu_irq,
+	.unmap_afu_irq		= cxlflash_unmap_afu_irq,
+	.start_context		= cxlflash_start_context,
+	.stop_context		= cxlflash_stop_context,
+	.afu_reset		= cxlflash_afu_reset,
+	.set_master		= cxlflash_set_master,
+	.get_context		= cxlflash_get_context,
+	.dev_context_init	= cxlflash_dev_context_init,
+	.release_context	= cxlflash_release_context,
+	.perst_reloads_same_image = cxlflash_perst_reloads_same_image,
+	.read_adapter_vpd	= cxlflash_read_adapter_vpd,
+	.allocate_afu_irqs	= cxlflash_allocate_afu_irqs,
+	.free_afu_irqs		= cxlflash_free_afu_irqs,
+	.create_afu		= cxlflash_create_afu,
+	.get_fd			= cxlflash_get_fd,
+	.fops_get_context	= cxlflash_fops_get_context,
+	.start_work		= cxlflash_start_work,
+	.fd_mmap		= cxlflash_fd_mmap,
+	.fd_release		= cxlflash_fd_release,
+};
diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c
index 38b3a9c84fd1..d8fe7ab870b8 100644
--- a/drivers/scsi/cxlflash/main.c
+++ b/drivers/scsi/cxlflash/main.c
@@ -620,6 +620,7 @@ static int cxlflash_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *scp)
 	cmd->parent = afu;
 	cmd->hwq_index = hwq_index;
 
+	cmd->sa.ioasc = 0;
 	cmd->rcb.ctx_id = hwq->ctx_hndl;
 	cmd->rcb.msi = SISL_MSI_RRQ_UPDATED;
 	cmd->rcb.port_sel = CHAN2PORTMASK(scp->device->channel);
@@ -710,7 +711,7 @@ static void stop_afu(struct cxlflash_cfg *cfg)
 		}
 
 		if (likely(afu->afu_map)) {
-			cxl_psa_unmap((void __iomem *)afu->afu_map);
+			cfg->ops->psa_unmap(afu->afu_map);
 			afu->afu_map = NULL;
 		}
 	}
@@ -738,7 +739,7 @@ static void term_intr(struct cxlflash_cfg *cfg, enum undo_level level,
 
 	hwq = get_hwq(afu, index);
 
-	if (!hwq->ctx) {
+	if (!hwq->ctx_cookie) {
 		dev_err(dev, "%s: returning with NULL MC\n", __func__);
 		return;
 	}
@@ -747,13 +748,13 @@ static void term_intr(struct cxlflash_cfg *cfg, enum undo_level level,
 	case UNMAP_THREE:
 		/* SISL_MSI_ASYNC_ERROR is setup only for the primary HWQ */
 		if (index == PRIMARY_HWQ)
-			cxl_unmap_afu_irq(hwq->ctx, 3, hwq);
+			cfg->ops->unmap_afu_irq(hwq->ctx_cookie, 3, hwq);
 	case UNMAP_TWO:
-		cxl_unmap_afu_irq(hwq->ctx, 2, hwq);
+		cfg->ops->unmap_afu_irq(hwq->ctx_cookie, 2, hwq);
 	case UNMAP_ONE:
-		cxl_unmap_afu_irq(hwq->ctx, 1, hwq);
+		cfg->ops->unmap_afu_irq(hwq->ctx_cookie, 1, hwq);
 	case FREE_IRQ:
-		cxl_free_afu_irqs(hwq->ctx);
+		cfg->ops->free_afu_irqs(hwq->ctx_cookie);
 		/* fall through */
 	case UNDO_NOOP:
 		/* No action required */
@@ -782,15 +783,15 @@ static void term_mc(struct cxlflash_cfg *cfg, u32 index)
 
 	hwq = get_hwq(afu, index);
 
-	if (!hwq->ctx) {
+	if (!hwq->ctx_cookie) {
 		dev_err(dev, "%s: returning with NULL MC\n", __func__);
 		return;
 	}
 
-	WARN_ON(cxl_stop_context(hwq->ctx));
+	WARN_ON(cfg->ops->stop_context(hwq->ctx_cookie));
 	if (index != PRIMARY_HWQ)
-		WARN_ON(cxl_release_context(hwq->ctx));
-	hwq->ctx = NULL;
+		WARN_ON(cfg->ops->release_context(hwq->ctx_cookie));
+	hwq->ctx_cookie = NULL;
 
 	spin_lock_irqsave(&hwq->hsq_slock, lock_flags);
 	flush_pending_cmds(hwq);
@@ -1598,27 +1599,6 @@ out:
 }
 
 /**
- * start_context() - starts the master context
- * @cfg:	Internal structure associated with the host.
- * @index:	Index of the hardware queue.
- *
- * Return: A success or failure value from CXL services.
- */
-static int start_context(struct cxlflash_cfg *cfg, u32 index)
-{
-	struct device *dev = &cfg->dev->dev;
-	struct hwq *hwq = get_hwq(cfg->afu, index);
-	int rc = 0;
-
-	rc = cxl_start_context(hwq->ctx,
-			       hwq->work.work_element_descriptor,
-			       NULL);
-
-	dev_dbg(dev, "%s: returning rc=%d\n", __func__, rc);
-	return rc;
-}
-
-/**
  * read_vpd() - obtains the WWPNs from VPD
  * @cfg:	Internal structure associated with the host.
  * @wwpn:	Array of size MAX_FC_PORTS to pass back WWPNs
@@ -1640,7 +1620,7 @@ static int read_vpd(struct cxlflash_cfg *cfg, u64 wwpn[])
 	const char *wwpn_vpd_tags[MAX_FC_PORTS] = { "V5", "V6", "V7", "V8" };
 
 	/* Get the VPD data from the device */
-	vpd_size = cxl_read_adapter_vpd(pdev, vpd_data, sizeof(vpd_data));
+	vpd_size = cfg->ops->read_adapter_vpd(pdev, vpd_data, sizeof(vpd_data));
 	if (unlikely(vpd_size <= 0)) {
 		dev_err(dev, "%s: Unable to read VPD (size = %ld)\n",
 			__func__, vpd_size);
@@ -1732,6 +1712,7 @@ static void init_pcr(struct cxlflash_cfg *cfg)
 	struct afu *afu = cfg->afu;
 	struct sisl_ctrl_map __iomem *ctrl_map;
 	struct hwq *hwq;
+	void *cookie;
 	int i;
 
 	for (i = 0; i < MAX_CONTEXT; i++) {
@@ -1746,8 +1727,9 @@ static void init_pcr(struct cxlflash_cfg *cfg)
 	/* Copy frequently used fields into hwq */
 	for (i = 0; i < afu->num_hwqs; i++) {
 		hwq = get_hwq(afu, i);
+		cookie = hwq->ctx_cookie;
 
-		hwq->ctx_hndl = (u16) cxl_process_element(hwq->ctx);
+		hwq->ctx_hndl = (u16) cfg->ops->process_element(cookie);
 		hwq->host_map = &afu->afu_map->hosts[hwq->ctx_hndl].host;
 		hwq->ctrl_map = &afu->afu_map->ctrls[hwq->ctx_hndl].ctrl;
 
@@ -1925,13 +1907,13 @@ static enum undo_level init_intr(struct cxlflash_cfg *cfg,
 				 struct hwq *hwq)
 {
 	struct device *dev = &cfg->dev->dev;
-	struct cxl_context *ctx = hwq->ctx;
+	void *ctx = hwq->ctx_cookie;
 	int rc = 0;
 	enum undo_level level = UNDO_NOOP;
 	bool is_primary_hwq = (hwq->index == PRIMARY_HWQ);
 	int num_irqs = is_primary_hwq ? 3 : 2;
 
-	rc = cxl_allocate_afu_irqs(ctx, num_irqs);
+	rc = cfg->ops->allocate_afu_irqs(ctx, num_irqs);
 	if (unlikely(rc)) {
 		dev_err(dev, "%s: allocate_afu_irqs failed rc=%d\n",
 			__func__, rc);
@@ -1939,16 +1921,16 @@ static enum undo_level init_intr(struct cxlflash_cfg *cfg,
 		goto out;
 	}
 
-	rc = cxl_map_afu_irq(ctx, 1, cxlflash_sync_err_irq, hwq,
-			     "SISL_MSI_SYNC_ERROR");
+	rc = cfg->ops->map_afu_irq(ctx, 1, cxlflash_sync_err_irq, hwq,
+				   "SISL_MSI_SYNC_ERROR");
 	if (unlikely(rc <= 0)) {
 		dev_err(dev, "%s: SISL_MSI_SYNC_ERROR map failed\n", __func__);
 		level = FREE_IRQ;
 		goto out;
 	}
 
-	rc = cxl_map_afu_irq(ctx, 2, cxlflash_rrq_irq, hwq,
-			     "SISL_MSI_RRQ_UPDATED");
+	rc = cfg->ops->map_afu_irq(ctx, 2, cxlflash_rrq_irq, hwq,
+				   "SISL_MSI_RRQ_UPDATED");
 	if (unlikely(rc <= 0)) {
 		dev_err(dev, "%s: SISL_MSI_RRQ_UPDATED map failed\n", __func__);
 		level = UNMAP_ONE;
@@ -1959,8 +1941,8 @@ static enum undo_level init_intr(struct cxlflash_cfg *cfg,
 	if (!is_primary_hwq)
 		goto out;
 
-	rc = cxl_map_afu_irq(ctx, 3, cxlflash_async_err_irq, hwq,
-			     "SISL_MSI_ASYNC_ERROR");
+	rc = cfg->ops->map_afu_irq(ctx, 3, cxlflash_async_err_irq, hwq,
+				   "SISL_MSI_ASYNC_ERROR");
 	if (unlikely(rc <= 0)) {
 		dev_err(dev, "%s: SISL_MSI_ASYNC_ERROR map failed\n", __func__);
 		level = UNMAP_TWO;
@@ -1979,7 +1961,7 @@ out:
  */
 static int init_mc(struct cxlflash_cfg *cfg, u32 index)
 {
-	struct cxl_context *ctx;
+	void *ctx;
 	struct device *dev = &cfg->dev->dev;
 	struct hwq *hwq = get_hwq(cfg->afu, index);
 	int rc = 0;
@@ -1990,23 +1972,23 @@ static int init_mc(struct cxlflash_cfg *cfg, u32 index)
 	INIT_LIST_HEAD(&hwq->pending_cmds);
 
 	if (index == PRIMARY_HWQ)
-		ctx = cxl_get_context(cfg->dev);
+		ctx = cfg->ops->get_context(cfg->dev, cfg->afu_cookie);
 	else
-		ctx = cxl_dev_context_init(cfg->dev);
-	if (unlikely(!ctx)) {
+		ctx = cfg->ops->dev_context_init(cfg->dev, cfg->afu_cookie);
+	if (IS_ERR_OR_NULL(ctx)) {
 		rc = -ENOMEM;
 		goto err1;
 	}
 
-	WARN_ON(hwq->ctx);
-	hwq->ctx = ctx;
+	WARN_ON(hwq->ctx_cookie);
+	hwq->ctx_cookie = ctx;
 
 	/* Set it up as a master with the CXL */
-	cxl_set_master(ctx);
+	cfg->ops->set_master(ctx);
 
 	/* Reset AFU when initializing primary context */
 	if (index == PRIMARY_HWQ) {
-		rc = cxl_afu_reset(ctx);
+		rc = cfg->ops->afu_reset(ctx);
 		if (unlikely(rc)) {
 			dev_err(dev, "%s: AFU reset failed rc=%d\n",
 				      __func__, rc);
@@ -2020,11 +2002,8 @@ static int init_mc(struct cxlflash_cfg *cfg, u32 index)
 		goto err2;
 	}
 
-	/* This performs the equivalent of the CXL_IOCTL_START_WORK.
-	 * The CXL_IOCTL_GET_PROCESS_ELEMENT is implicit in the process
-	 * element (pe) that is embedded in the context (ctx)
-	 */
-	rc = start_context(cfg, index);
+	/* Finally, activate the context by starting it */
+	rc = cfg->ops->start_context(hwq->ctx_cookie);
 	if (unlikely(rc)) {
 		dev_err(dev, "%s: start context failed rc=%d\n", __func__, rc);
 		level = UNMAP_THREE;
@@ -2037,9 +2016,9 @@ out:
 err2:
 	term_intr(cfg, level, index);
 	if (index != PRIMARY_HWQ)
-		cxl_release_context(ctx);
+		cfg->ops->release_context(ctx);
 err1:
-	hwq->ctx = NULL;
+	hwq->ctx_cookie = NULL;
 	goto out;
 }
 
@@ -2094,7 +2073,7 @@ static int init_afu(struct cxlflash_cfg *cfg)
 	struct hwq *hwq;
 	int i;
 
-	cxl_perst_reloads_same_image(cfg->cxl_afu, true);
+	cfg->ops->perst_reloads_same_image(cfg->afu_cookie, true);
 
 	afu->num_hwqs = afu->desired_hwqs;
 	for (i = 0; i < afu->num_hwqs; i++) {
@@ -2108,9 +2087,9 @@ static int init_afu(struct cxlflash_cfg *cfg)
 
 	/* Map the entire MMIO space of the AFU using the first context */
 	hwq = get_hwq(afu, PRIMARY_HWQ);
-	afu->afu_map = cxl_psa_map(hwq->ctx);
+	afu->afu_map = cfg->ops->psa_map(hwq->ctx_cookie);
 	if (!afu->afu_map) {
-		dev_err(dev, "%s: cxl_psa_map failed\n", __func__);
+		dev_err(dev, "%s: psa_map failed\n", __func__);
 		rc = -ENOMEM;
 		goto err1;
 	}
@@ -3670,6 +3649,7 @@ static int cxlflash_probe(struct pci_dev *pdev,
 
 	cfg->init_state = INIT_STATE_NONE;
 	cfg->dev = pdev;
+	cfg->ops = &cxlflash_cxl_ops;
 	cfg->cxl_fops = cxlflash_cxl_fops;
 
 	/*
@@ -3701,7 +3681,7 @@ static int cxlflash_probe(struct pci_dev *pdev,
 
 	pci_set_drvdata(pdev, cfg);
 
-	cfg->cxl_afu = cxl_pci_to_afu(pdev);
+	cfg->afu_cookie = cfg->ops->create_afu(pdev);
 
 	rc = init_pci(cfg);
 	if (rc) {
diff --git a/drivers/scsi/cxlflash/superpipe.c b/drivers/scsi/cxlflash/superpipe.c
index 170fff5aeff6..2fe79df5c73c 100644
--- a/drivers/scsi/cxlflash/superpipe.c
+++ b/drivers/scsi/cxlflash/superpipe.c
@@ -810,20 +810,22 @@ err:
  * init_context() - initializes a previously allocated context
  * @ctxi:	Previously allocated context
  * @cfg:	Internal structure associated with the host.
- * @ctx:	Previously obtained CXL context reference.
+ * @ctx:	Previously obtained context cookie.
  * @ctxid:	Previously obtained process element associated with CXL context.
  * @file:	Previously obtained file associated with CXL context.
  * @perms:	User-specified permissions.
+ * @irqs:	User-specified number of interrupts.
  */
 static void init_context(struct ctx_info *ctxi, struct cxlflash_cfg *cfg,
-			 struct cxl_context *ctx, int ctxid, struct file *file,
-			 u32 perms)
+			 void *ctx, int ctxid, struct file *file, u32 perms,
+			 u64 irqs)
 {
 	struct afu *afu = cfg->afu;
 
 	ctxi->rht_perms = perms;
 	ctxi->ctrl_map = &afu->afu_map->ctrls[ctxid].ctrl;
 	ctxi->ctxid = ENCODE_CTXID(ctxi, ctxid);
+	ctxi->irqs = irqs;
 	ctxi->pid = task_tgid_nr(current); /* tgid = pid */
 	ctxi->ctx = ctx;
 	ctxi->cfg = cfg;
@@ -976,9 +978,9 @@ static int cxlflash_disk_detach(struct scsi_device *sdev,
  */
 static int cxlflash_cxl_release(struct inode *inode, struct file *file)
 {
-	struct cxl_context *ctx = cxl_fops_get_context(file);
 	struct cxlflash_cfg *cfg = container_of(file->f_op, struct cxlflash_cfg,
 						cxl_fops);
+	void *ctx = cfg->ops->fops_get_context(file);
 	struct device *dev = &cfg->dev->dev;
 	struct ctx_info *ctxi = NULL;
 	struct dk_cxlflash_detach detach = { { 0 }, 0 };
@@ -986,7 +988,7 @@ static int cxlflash_cxl_release(struct inode *inode, struct file *file)
 	enum ctx_ctrl ctrl = CTX_CTRL_ERR_FALLBACK | CTX_CTRL_FILE;
 	int ctxid;
 
-	ctxid = cxl_process_element(ctx);
+	ctxid = cfg->ops->process_element(ctx);
 	if (unlikely(ctxid < 0)) {
 		dev_err(dev, "%s: Context %p was closed ctxid=%d\n",
 			__func__, ctx, ctxid);
@@ -1014,7 +1016,7 @@ static int cxlflash_cxl_release(struct inode *inode, struct file *file)
 	list_for_each_entry_safe(lun_access, t, &ctxi->luns, list)
 		_cxlflash_disk_detach(lun_access->sdev, ctxi, &detach);
 out_release:
-	cxl_fd_release(inode, file);
+	cfg->ops->fd_release(inode, file);
 out:
 	dev_dbg(dev, "%s: returning\n", __func__);
 	return 0;
@@ -1089,9 +1091,9 @@ static int cxlflash_mmap_fault(struct vm_fault *vmf)
 {
 	struct vm_area_struct *vma = vmf->vma;
 	struct file *file = vma->vm_file;
-	struct cxl_context *ctx = cxl_fops_get_context(file);
 	struct cxlflash_cfg *cfg = container_of(file->f_op, struct cxlflash_cfg,
 						cxl_fops);
+	void *ctx = cfg->ops->fops_get_context(file);
 	struct device *dev = &cfg->dev->dev;
 	struct ctx_info *ctxi = NULL;
 	struct page *err_page = NULL;
@@ -1099,7 +1101,7 @@ static int cxlflash_mmap_fault(struct vm_fault *vmf)
 	int rc = 0;
 	int ctxid;
 
-	ctxid = cxl_process_element(ctx);
+	ctxid = cfg->ops->process_element(ctx);
 	if (unlikely(ctxid < 0)) {
 		dev_err(dev, "%s: Context %p was closed ctxid=%d\n",
 			__func__, ctx, ctxid);
@@ -1162,16 +1164,16 @@ static const struct vm_operations_struct cxlflash_mmap_vmops = {
  */
 static int cxlflash_cxl_mmap(struct file *file, struct vm_area_struct *vma)
 {
-	struct cxl_context *ctx = cxl_fops_get_context(file);
 	struct cxlflash_cfg *cfg = container_of(file->f_op, struct cxlflash_cfg,
 						cxl_fops);
+	void *ctx = cfg->ops->fops_get_context(file);
 	struct device *dev = &cfg->dev->dev;
 	struct ctx_info *ctxi = NULL;
 	enum ctx_ctrl ctrl = CTX_CTRL_ERR_FALLBACK | CTX_CTRL_FILE;
 	int ctxid;
 	int rc = 0;
 
-	ctxid = cxl_process_element(ctx);
+	ctxid = cfg->ops->process_element(ctx);
 	if (unlikely(ctxid < 0)) {
 		dev_err(dev, "%s: Context %p was closed ctxid=%d\n",
 			__func__, ctx, ctxid);
@@ -1188,7 +1190,7 @@ static int cxlflash_cxl_mmap(struct file *file, struct vm_area_struct *vma)
 
 	dev_dbg(dev, "%s: mmap for context %d\n", __func__, ctxid);
 
-	rc = cxl_fd_mmap(file, vma);
+	rc = cfg->ops->fd_mmap(file, vma);
 	if (likely(!rc)) {
 		/* Insert ourself in the mmap fault handler path */
 		ctxi->cxl_mmap_vmops = vma->vm_ops;
@@ -1307,23 +1309,23 @@ static int cxlflash_disk_attach(struct scsi_device *sdev,
 	struct afu *afu = cfg->afu;
 	struct llun_info *lli = sdev->hostdata;
 	struct glun_info *gli = lli->parent;
-	struct cxl_ioctl_start_work *work;
 	struct ctx_info *ctxi = NULL;
 	struct lun_access *lun_access = NULL;
 	int rc = 0;
 	u32 perms;
 	int ctxid = -1;
+	u64 irqs = attach->num_interrupts;
 	u64 flags = 0UL;
 	u64 rctxid = 0UL;
 	struct file *file = NULL;
 
-	struct cxl_context *ctx = NULL;
+	void *ctx = NULL;
 
 	int fd = -1;
 
-	if (attach->num_interrupts > 4) {
+	if (irqs > 4) {
 		dev_dbg(dev, "%s: Cannot support this many interrupts %llu\n",
-			__func__, attach->num_interrupts);
+			__func__, irqs);
 		rc = -EINVAL;
 		goto out;
 	}
@@ -1394,7 +1396,7 @@ static int cxlflash_disk_attach(struct scsi_device *sdev,
 		goto err;
 	}
 
-	ctx = cxl_dev_context_init(cfg->dev);
+	ctx = cfg->ops->dev_context_init(cfg->dev, cfg->afu_cookie);
 	if (IS_ERR_OR_NULL(ctx)) {
 		dev_err(dev, "%s: Could not initialize context %p\n",
 			__func__, ctx);
@@ -1402,25 +1404,21 @@ static int cxlflash_disk_attach(struct scsi_device *sdev,
 		goto err;
 	}
 
-	work = &ctxi->work;
-	work->num_interrupts = attach->num_interrupts;
-	work->flags = CXL_START_WORK_NUM_IRQS;
-
-	rc = cxl_start_work(ctx, work);
+	rc = cfg->ops->start_work(ctx, irqs);
 	if (unlikely(rc)) {
 		dev_dbg(dev, "%s: Could not start context rc=%d\n",
 			__func__, rc);
 		goto err;
 	}
 
-	ctxid = cxl_process_element(ctx);
+	ctxid = cfg->ops->process_element(ctx);
 	if (unlikely((ctxid >= MAX_CONTEXT) || (ctxid < 0))) {
 		dev_err(dev, "%s: ctxid=%d invalid\n", __func__, ctxid);
 		rc = -EPERM;
 		goto err;
 	}
 
-	file = cxl_get_fd(ctx, &cfg->cxl_fops, &fd);
+	file = cfg->ops->get_fd(ctx, &cfg->cxl_fops, &fd);
 	if (unlikely(fd < 0)) {
 		rc = -ENODEV;
 		dev_err(dev, "%s: Could not get file descriptor\n", __func__);
@@ -1431,7 +1429,7 @@ static int cxlflash_disk_attach(struct scsi_device *sdev,
 	perms = SISL_RHT_PERM(attach->hdr.flags + 1);
 
 	/* Context mutex is locked upon return */
-	init_context(ctxi, cfg, ctx, ctxid, file, perms);
+	init_context(ctxi, cfg, ctx, ctxid, file, perms, irqs);
 
 	rc = afu_attach(cfg, ctxi);
 	if (unlikely(rc)) {
@@ -1479,8 +1477,8 @@ out:
 err:
 	/* Cleanup CXL context; okay to 'stop' even if it was not started */
 	if (!IS_ERR_OR_NULL(ctx)) {
-		cxl_stop_context(ctx);
-		cxl_release_context(ctx);
+		cfg->ops->stop_context(ctx);
+		cfg->ops->release_context(ctx);
 		ctx = NULL;
 	}
 
@@ -1529,10 +1527,10 @@ static int recover_context(struct cxlflash_cfg *cfg,
 	int fd = -1;
 	int ctxid = -1;
 	struct file *file;
-	struct cxl_context *ctx;
+	void *ctx;
 	struct afu *afu = cfg->afu;
 
-	ctx = cxl_dev_context_init(cfg->dev);
+	ctx = cfg->ops->dev_context_init(cfg->dev, cfg->afu_cookie);
 	if (IS_ERR_OR_NULL(ctx)) {
 		dev_err(dev, "%s: Could not initialize context %p\n",
 			__func__, ctx);
@@ -1540,21 +1538,21 @@ static int recover_context(struct cxlflash_cfg *cfg,
 		goto out;
 	}
 
-	rc = cxl_start_work(ctx, &ctxi->work);
+	rc = cfg->ops->start_work(ctx, ctxi->irqs);
 	if (unlikely(rc)) {
 		dev_dbg(dev, "%s: Could not start context rc=%d\n",
 			__func__, rc);
 		goto err1;
 	}
 
-	ctxid = cxl_process_element(ctx);
+	ctxid = cfg->ops->process_element(ctx);
 	if (unlikely((ctxid >= MAX_CONTEXT) || (ctxid < 0))) {
 		dev_err(dev, "%s: ctxid=%d invalid\n", __func__, ctxid);
 		rc = -EPERM;
 		goto err2;
 	}
 
-	file = cxl_get_fd(ctx, &cfg->cxl_fops, &fd);
+	file = cfg->ops->get_fd(ctx, &cfg->cxl_fops, &fd);
 	if (unlikely(fd < 0)) {
 		rc = -ENODEV;
 		dev_err(dev, "%s: Could not get file descriptor\n", __func__);
@@ -1601,9 +1599,9 @@ err3:
 	fput(file);
 	put_unused_fd(fd);
 err2:
-	cxl_stop_context(ctx);
+	cfg->ops->stop_context(ctx);
 err1:
-	cxl_release_context(ctx);
+	cfg->ops->release_context(ctx);
 	goto out;
 }
 
diff --git a/drivers/scsi/cxlflash/superpipe.h b/drivers/scsi/cxlflash/superpipe.h
index 0b5976829913..35c3cbf83fb5 100644
--- a/drivers/scsi/cxlflash/superpipe.h
+++ b/drivers/scsi/cxlflash/superpipe.h
@@ -96,15 +96,15 @@ struct ctx_info {
 	struct llun_info **rht_lun;       /* Mapping of RHT entries to LUNs */
 	u8 *rht_needs_ws;	/* User-desired write-same function per RHTE */
 
-	struct cxl_ioctl_start_work work;
 	u64 ctxid;
+	u64 irqs; /* Number of interrupts requested for context */
 	pid_t pid;
 	bool initialized;
 	bool unavail;
 	bool err_recovery_active;
 	struct mutex mutex; /* Context protection */
 	struct kref kref;
-	struct cxl_context *ctx;
+	void *ctx;
 	struct cxlflash_cfg *cfg;
 	struct list_head luns;	/* LUNs attached to this context */
 	const struct vm_operations_struct *cxl_mmap_vmops;
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index fd22dc6ab5d9..022e421c2185 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -40,6 +40,7 @@
 #define TPGS_SUPPORT_LBA_DEPENDENT	0x10
 #define TPGS_SUPPORT_OFFLINE		0x40
 #define TPGS_SUPPORT_TRANSITION		0x80
+#define TPGS_SUPPORT_ALL		0xdf
 
 #define RTPG_FMT_MASK			0x70
 #define RTPG_FMT_EXT_HDR		0x10
@@ -81,6 +82,7 @@ struct alua_port_group {
 	int			tpgs;
 	int			state;
 	int			pref;
+	int			valid_states;
 	unsigned		flags; /* used for optimizing STPG */
 	unsigned char		transition_tmo;
 	unsigned long		expiry;
@@ -243,6 +245,7 @@ static struct alua_port_group *alua_alloc_pg(struct scsi_device *sdev,
 	pg->group_id = group_id;
 	pg->tpgs = tpgs;
 	pg->state = SCSI_ACCESS_STATE_OPTIMAL;
+	pg->valid_states = TPGS_SUPPORT_ALL;
 	if (optimize_stpg)
 		pg->flags |= ALUA_OPTIMIZE_STPG;
 	kref_init(&pg->kref);
@@ -516,7 +519,7 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg)
 {
 	struct scsi_sense_hdr sense_hdr;
 	struct alua_port_group *tmp_pg;
-	int len, k, off, valid_states = 0, bufflen = ALUA_RTPG_SIZE;
+	int len, k, off, bufflen = ALUA_RTPG_SIZE;
 	unsigned char *desc, *buff;
 	unsigned err, retval;
 	unsigned int tpg_desc_tbl_off;
@@ -541,6 +544,22 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg)
 	retval = submit_rtpg(sdev, buff, bufflen, &sense_hdr, pg->flags);
 
 	if (retval) {
+		/*
+		 * Some (broken) implementations have a habit of returning
+		 * an error during things like firmware update etc.
+		 * But if the target only supports active/optimized there's
+		 * not much we can do; it's not that we can switch paths
+		 * or anything.
+		 * So ignore any errors to avoid spurious failures during
+		 * path failover.
+		 */
+		if ((pg->valid_states & ~TPGS_SUPPORT_OPTIMIZED) == 0) {
+			sdev_printk(KERN_INFO, sdev,
+				    "%s: ignoring rtpg result %d\n",
+				    ALUA_DH_NAME, retval);
+			kfree(buff);
+			return SCSI_DH_OK;
+		}
 		if (!scsi_sense_valid(&sense_hdr)) {
 			sdev_printk(KERN_INFO, sdev,
 				    "%s: rtpg failed, result %d\n",
@@ -652,7 +671,7 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg)
 					rcu_read_unlock();
 				}
 				if (tmp_pg == pg)
-					valid_states = desc[1];
+					tmp_pg->valid_states = desc[1];
 				spin_unlock_irqrestore(&tmp_pg->lock, flags);
 			}
 			kref_put(&tmp_pg->kref, release_port_group);
@@ -665,13 +684,13 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg)
 		    "%s: port group %02x state %c %s supports %c%c%c%c%c%c%c\n",
 		    ALUA_DH_NAME, pg->group_id, print_alua_state(pg->state),
 		    pg->pref ? "preferred" : "non-preferred",
-		    valid_states&TPGS_SUPPORT_TRANSITION?'T':'t',
-		    valid_states&TPGS_SUPPORT_OFFLINE?'O':'o',
-		    valid_states&TPGS_SUPPORT_LBA_DEPENDENT?'L':'l',
-		    valid_states&TPGS_SUPPORT_UNAVAILABLE?'U':'u',
-		    valid_states&TPGS_SUPPORT_STANDBY?'S':'s',
-		    valid_states&TPGS_SUPPORT_NONOPTIMIZED?'N':'n',
-		    valid_states&TPGS_SUPPORT_OPTIMIZED?'A':'a');
+		    pg->valid_states&TPGS_SUPPORT_TRANSITION?'T':'t',
+		    pg->valid_states&TPGS_SUPPORT_OFFLINE?'O':'o',
+		    pg->valid_states&TPGS_SUPPORT_LBA_DEPENDENT?'L':'l',
+		    pg->valid_states&TPGS_SUPPORT_UNAVAILABLE?'U':'u',
+		    pg->valid_states&TPGS_SUPPORT_STANDBY?'S':'s',
+		    pg->valid_states&TPGS_SUPPORT_NONOPTIMIZED?'N':'n',
+		    pg->valid_states&TPGS_SUPPORT_OPTIMIZED?'A':'a');
 
 	switch (pg->state) {
 	case SCSI_ACCESS_STATE_TRANSITIONING:
diff --git a/drivers/scsi/fnic/fnic_debugfs.c b/drivers/scsi/fnic/fnic_debugfs.c
index 5e3d909cfc53..6d3e1cb4fea6 100644
--- a/drivers/scsi/fnic/fnic_debugfs.c
+++ b/drivers/scsi/fnic/fnic_debugfs.c
@@ -108,24 +108,6 @@ void fnic_debugfs_terminate(void)
 }
 
 /*
- * fnic_trace_ctrl_open - Open the trace_enable file for fnic_trace
- *               Or Open fc_trace_enable file for fc_trace
- * @inode: The inode pointer.
- * @file: The file pointer to attach the trace enable/disable flag.
- *
- * Description:
- * This routine opens a debugsfs file trace_enable or fc_trace_enable.
- *
- * Returns:
- * This function returns zero if successful.
- */
-static int fnic_trace_ctrl_open(struct inode *inode, struct file *filp)
-{
-	filp->private_data = inode->i_private;
-	return 0;
-}
-
-/*
  * fnic_trace_ctrl_read -
  *          Read  trace_enable ,fc_trace_enable
  *              or fc_trace_clear debugfs file
@@ -220,7 +202,7 @@ static ssize_t fnic_trace_ctrl_write(struct file *filp,
 
 static const struct file_operations fnic_trace_ctrl_fops = {
 	.owner = THIS_MODULE,
-	.open = fnic_trace_ctrl_open,
+	.open = simple_open,
 	.read = fnic_trace_ctrl_read,
 	.write = fnic_trace_ctrl_write,
 };
@@ -632,7 +614,7 @@ static ssize_t fnic_reset_stats_write(struct file *file,
 			sizeof(struct io_path_stats) - sizeof(u64));
 		memset(fw_stats_p+1, 0,
 			sizeof(struct fw_stats) - sizeof(u64));
-		getnstimeofday(&stats->stats_timestamps.last_reset_time);
+		ktime_get_real_ts64(&stats->stats_timestamps.last_reset_time);
 	}
 
 	(*ppos)++;
diff --git a/drivers/scsi/fnic/fnic_fcs.c b/drivers/scsi/fnic/fnic_fcs.c
index 999fc7547560..c7bf316d8e83 100644
--- a/drivers/scsi/fnic/fnic_fcs.c
+++ b/drivers/scsi/fnic/fnic_fcs.c
@@ -442,15 +442,13 @@ static void fnic_fcoe_process_vlan_resp(struct fnic *fnic, struct sk_buff *skb)
 			vid = ntohs(((struct fip_vlan_desc *)desc)->fd_vlan);
 			shost_printk(KERN_INFO, fnic->lport->host,
 				  "process_vlan_resp: FIP VLAN %d\n", vid);
-			vlan = kmalloc(sizeof(*vlan),
-							GFP_ATOMIC);
+			vlan = kzalloc(sizeof(*vlan), GFP_ATOMIC);
 			if (!vlan) {
 				/* retry from timer */
 				spin_unlock_irqrestore(&fnic->vlans_lock,
 							flags);
 				goto out;
 			}
-			memset(vlan, 0, sizeof(struct fcoe_vlan));
 			vlan->vid = vid & 0x0fff;
 			vlan->state = FIP_VLAN_AVAIL;
 			list_add_tail(&vlan->list, &fnic->vlans);
diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c
index 242e2ee494a1..8cbd3c9f0b4c 100644
--- a/drivers/scsi/fnic/fnic_scsi.c
+++ b/drivers/scsi/fnic/fnic_scsi.c
@@ -906,7 +906,7 @@ static void fnic_fcpio_icmnd_cmpl_handler(struct fnic *fnic,
 
 		FNIC_SCSI_DBG(KERN_INFO, fnic->lport->host,
 			"icmnd_cmpl abts pending "
-			  "hdr status = %s tag = 0x%x sc = 0x%p"
+			  "hdr status = %s tag = 0x%x sc = 0x%p "
 			  "scsi_status = %x residual = %d\n",
 			  fnic_fcpio_status_to_str(hdr_status),
 			  id, sc,
diff --git a/drivers/scsi/fnic/fnic_stats.h b/drivers/scsi/fnic/fnic_stats.h
index e007feedbf72..9daa6ada6fa0 100644
--- a/drivers/scsi/fnic/fnic_stats.h
+++ b/drivers/scsi/fnic/fnic_stats.h
@@ -18,8 +18,8 @@
 #define _FNIC_STATS_H_
 
 struct stats_timestamps {
-	struct timespec last_reset_time;
-	struct timespec last_read_time;
+	struct timespec64 last_reset_time;
+	struct timespec64 last_read_time;
 };
 
 struct io_path_stats {
diff --git a/drivers/scsi/fnic/fnic_trace.c b/drivers/scsi/fnic/fnic_trace.c
index 4826f596cb31..abddde11982b 100644
--- a/drivers/scsi/fnic/fnic_trace.c
+++ b/drivers/scsi/fnic/fnic_trace.c
@@ -111,7 +111,7 @@ int fnic_get_trace_data(fnic_dbgfs_t *fnic_dbgfs_prt)
 	int len = 0;
 	unsigned long flags;
 	char str[KSYM_SYMBOL_LEN];
-	struct timespec val;
+	struct timespec64 val;
 	fnic_trace_data_t *tbp;
 
 	spin_lock_irqsave(&fnic_trace_lock, flags);
@@ -129,10 +129,10 @@ int fnic_get_trace_data(fnic_dbgfs_t *fnic_dbgfs_prt)
 			/* Convert function pointer to function name */
 			if (sizeof(unsigned long) < 8) {
 				sprint_symbol(str, tbp->fnaddr.low);
-				jiffies_to_timespec(tbp->timestamp.low, &val);
+				jiffies_to_timespec64(tbp->timestamp.low, &val);
 			} else {
 				sprint_symbol(str, tbp->fnaddr.val);
-				jiffies_to_timespec(tbp->timestamp.val, &val);
+				jiffies_to_timespec64(tbp->timestamp.val, &val);
 			}
 			/*
 			 * Dump trace buffer entry to memory file
@@ -140,8 +140,8 @@ int fnic_get_trace_data(fnic_dbgfs_t *fnic_dbgfs_prt)
 			 */
 			len += snprintf(fnic_dbgfs_prt->buffer + len,
 				  (trace_max_pages * PAGE_SIZE * 3) - len,
-				  "%16lu.%16lu %-50s %8x %8x %16llx %16llx "
-				  "%16llx %16llx %16llx\n", val.tv_sec,
+				  "%16llu.%09lu %-50s %8x %8x %16llx %16llx "
+				  "%16llx %16llx %16llx\n", (u64)val.tv_sec,
 				  val.tv_nsec, str, tbp->host_no, tbp->tag,
 				  tbp->data[0], tbp->data[1], tbp->data[2],
 				  tbp->data[3], tbp->data[4]);
@@ -171,10 +171,10 @@ int fnic_get_trace_data(fnic_dbgfs_t *fnic_dbgfs_prt)
 			/* Convert function pointer to function name */
 			if (sizeof(unsigned long) < 8) {
 				sprint_symbol(str, tbp->fnaddr.low);
-				jiffies_to_timespec(tbp->timestamp.low, &val);
+				jiffies_to_timespec64(tbp->timestamp.low, &val);
 			} else {
 				sprint_symbol(str, tbp->fnaddr.val);
-				jiffies_to_timespec(tbp->timestamp.val, &val);
+				jiffies_to_timespec64(tbp->timestamp.val, &val);
 			}
 			/*
 			 * Dump trace buffer entry to memory file
@@ -182,8 +182,8 @@ int fnic_get_trace_data(fnic_dbgfs_t *fnic_dbgfs_prt)
 			 */
 			len += snprintf(fnic_dbgfs_prt->buffer + len,
 				  (trace_max_pages * PAGE_SIZE * 3) - len,
-				  "%16lu.%16lu %-50s %8x %8x %16llx %16llx "
-				  "%16llx %16llx %16llx\n", val.tv_sec,
+				  "%16llu.%09lu %-50s %8x %8x %16llx %16llx "
+				  "%16llx %16llx %16llx\n", (u64)val.tv_sec,
 				  val.tv_nsec, str, tbp->host_no, tbp->tag,
 				  tbp->data[0], tbp->data[1], tbp->data[2],
 				  tbp->data[3], tbp->data[4]);
@@ -217,29 +217,29 @@ int fnic_get_stats_data(struct stats_debug_info *debug,
 {
 	int len = 0;
 	int buf_size = debug->buf_size;
-	struct timespec val1, val2;
+	struct timespec64 val1, val2;
 
-	getnstimeofday(&val1);
+	ktime_get_real_ts64(&val1);
 	len = snprintf(debug->debug_buffer + len, buf_size - len,
 		"------------------------------------------\n"
 		 "\t\tTime\n"
 		"------------------------------------------\n");
 
 	len += snprintf(debug->debug_buffer + len, buf_size - len,
-		"Current time :          [%ld:%ld]\n"
-		"Last stats reset time:  [%ld:%ld]\n"
-		"Last stats read time:   [%ld:%ld]\n"
-		"delta since last reset: [%ld:%ld]\n"
-		"delta since last read:  [%ld:%ld]\n",
-	val1.tv_sec, val1.tv_nsec,
-	stats->stats_timestamps.last_reset_time.tv_sec,
+		"Current time :          [%lld:%ld]\n"
+		"Last stats reset time:  [%lld:%09ld]\n"
+		"Last stats read time:   [%lld:%ld]\n"
+		"delta since last reset: [%lld:%ld]\n"
+		"delta since last read:  [%lld:%ld]\n",
+	(s64)val1.tv_sec, val1.tv_nsec,
+	(s64)stats->stats_timestamps.last_reset_time.tv_sec,
 	stats->stats_timestamps.last_reset_time.tv_nsec,
-	stats->stats_timestamps.last_read_time.tv_sec,
+	(s64)stats->stats_timestamps.last_read_time.tv_sec,
 	stats->stats_timestamps.last_read_time.tv_nsec,
-	timespec_sub(val1, stats->stats_timestamps.last_reset_time).tv_sec,
-	timespec_sub(val1, stats->stats_timestamps.last_reset_time).tv_nsec,
-	timespec_sub(val1, stats->stats_timestamps.last_read_time).tv_sec,
-	timespec_sub(val1, stats->stats_timestamps.last_read_time).tv_nsec);
+	(s64)timespec64_sub(val1, stats->stats_timestamps.last_reset_time).tv_sec,
+	timespec64_sub(val1, stats->stats_timestamps.last_reset_time).tv_nsec,
+	(s64)timespec64_sub(val1, stats->stats_timestamps.last_read_time).tv_sec,
+	timespec64_sub(val1, stats->stats_timestamps.last_read_time).tv_nsec);
 
 	stats->stats_timestamps.last_read_time = val1;
 
@@ -403,12 +403,12 @@ int fnic_get_stats_data(struct stats_debug_info *debug,
 		  "\t\tOther Important Statistics\n"
 		  "------------------------------------------\n");
 
-	jiffies_to_timespec(stats->misc_stats.last_isr_time, &val1);
-	jiffies_to_timespec(stats->misc_stats.last_ack_time, &val2);
+	jiffies_to_timespec64(stats->misc_stats.last_isr_time, &val1);
+	jiffies_to_timespec64(stats->misc_stats.last_ack_time, &val2);
 
 	len += snprintf(debug->debug_buffer + len, buf_size - len,
-		  "Last ISR time: %llu (%8lu.%8lu)\n"
-		  "Last ACK time: %llu (%8lu.%8lu)\n"
+		  "Last ISR time: %llu (%8llu.%09lu)\n"
+		  "Last ACK time: %llu (%8llu.%09lu)\n"
 		  "Number of ISRs: %lld\n"
 		  "Maximum CQ Entries: %lld\n"
 		  "Number of ACK index out of range: %lld\n"
@@ -425,9 +425,9 @@ int fnic_get_stats_data(struct stats_debug_info *debug,
 		  "Number of rport not ready: %lld\n"
 		  "Number of receive frame errors: %lld\n",
 		  (u64)stats->misc_stats.last_isr_time,
-		  val1.tv_sec, val1.tv_nsec,
+		  (s64)val1.tv_sec, val1.tv_nsec,
 		  (u64)stats->misc_stats.last_ack_time,
-		  val2.tv_sec, val2.tv_nsec,
+		  (s64)val2.tv_sec, val2.tv_nsec,
 		  (u64)atomic64_read(&stats->misc_stats.isr_count),
 		  (u64)atomic64_read(&stats->misc_stats.max_cq_entries),
 		  (u64)atomic64_read(&stats->misc_stats.ack_index_out_of_range),
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index 83357b0367d8..e7fd2877c19c 100644
--- a/drivers/scsi/hisi_sas/hisi_sas.h
+++ b/drivers/scsi/hisi_sas/hisi_sas.h
@@ -99,12 +99,43 @@ struct hisi_sas_hw_error {
 	const struct hisi_sas_hw_error *sub;
 };
 
+struct hisi_sas_rst {
+	struct hisi_hba *hisi_hba;
+	struct completion *completion;
+	struct work_struct work;
+	bool done;
+};
+
+#define HISI_SAS_RST_WORK_INIT(r, c) \
+	{	.hisi_hba = hisi_hba, \
+		.completion = &c, \
+		.work = __WORK_INITIALIZER(r.work, \
+				hisi_sas_sync_rst_work_handler), \
+		.done = false, \
+		}
+
+#define HISI_SAS_DECLARE_RST_WORK_ON_STACK(r) \
+	DECLARE_COMPLETION_ONSTACK(c); \
+	DECLARE_WORK(w, hisi_sas_sync_rst_work_handler); \
+	struct hisi_sas_rst r = HISI_SAS_RST_WORK_INIT(r, c)
+
+enum hisi_sas_bit_err_type {
+	HISI_SAS_ERR_SINGLE_BIT_ECC = 0x0,
+	HISI_SAS_ERR_MULTI_BIT_ECC = 0x1,
+};
+
+enum hisi_sas_phy_event {
+	HISI_PHYE_PHY_UP   = 0U,
+	HISI_PHYE_LINK_RESET,
+	HISI_PHYES_NUM,
+};
+
 struct hisi_sas_phy {
+	struct work_struct	works[HISI_PHYES_NUM];
 	struct hisi_hba	*hisi_hba;
 	struct hisi_sas_port	*port;
 	struct asd_sas_phy	sas_phy;
 	struct sas_identify	identify;
-	struct work_struct	phyup_ws;
 	u64		port_id; /* from hw */
 	u64		dev_sas_addr;
 	u64		frame_rcvd_size;
@@ -205,13 +236,16 @@ struct hisi_sas_hw {
 	void (*phy_set_linkrate)(struct hisi_hba *hisi_hba, int phy_no,
 			struct sas_phy_linkrates *linkrates);
 	enum sas_linkrate (*phy_get_max_linkrate)(void);
-	void (*free_device)(struct hisi_hba *hisi_hba,
+	void (*clear_itct)(struct hisi_hba *hisi_hba,
 			    struct hisi_sas_device *dev);
+	void (*free_device)(struct hisi_sas_device *sas_dev);
 	int (*get_wideport_bitmap)(struct hisi_hba *hisi_hba, int port_id);
 	void (*dereg_device)(struct hisi_hba *hisi_hba,
 				struct domain_device *device);
 	int (*soft_reset)(struct hisi_hba *hisi_hba);
 	u32 (*get_phys_state)(struct hisi_hba *hisi_hba);
+	int (*write_gpio)(struct hisi_hba *hisi_hba, u8 reg_type,
+				u8 reg_index, u8 reg_count, u8 *write_data);
 	int max_command_entries;
 	int complete_hdr_size;
 };
@@ -225,6 +259,7 @@ struct hisi_hba {
 	struct device *dev;
 
 	void __iomem *regs;
+	void __iomem *sgpio_regs;
 	struct regmap *ctrl;
 	u32 ctrl_reset_reg;
 	u32 ctrl_reset_sts_reg;
@@ -409,7 +444,8 @@ extern void hisi_sas_stop_phys(struct hisi_hba *hisi_hba);
 extern void hisi_sas_init_add(struct hisi_hba *hisi_hba);
 extern int hisi_sas_alloc(struct hisi_hba *hisi_hba, struct Scsi_Host *shost);
 extern void hisi_sas_free(struct hisi_hba *hisi_hba);
-extern u8 hisi_sas_get_ata_protocol(u8 cmd, int direction);
+extern u8 hisi_sas_get_ata_protocol(struct host_to_dev_fis *fis,
+				int direction);
 extern struct hisi_sas_port *to_hisi_sas_port(struct asd_sas_port *sas_port);
 extern void hisi_sas_sata_done(struct sas_task *task,
 			    struct hisi_sas_slot *slot);
@@ -425,5 +461,9 @@ extern void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba,
 				    struct hisi_sas_slot *slot);
 extern void hisi_sas_init_mem(struct hisi_hba *hisi_hba);
 extern void hisi_sas_rst_work_handler(struct work_struct *work);
+extern void hisi_sas_sync_rst_work_handler(struct work_struct *work);
 extern void hisi_sas_kill_tasklets(struct hisi_hba *hisi_hba);
+extern bool hisi_sas_notify_phy_event(struct hisi_sas_phy *phy,
+				enum hisi_sas_phy_event event);
+extern void hisi_sas_release_tasks(struct hisi_hba *hisi_hba);
 #endif
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 5f503cb09508..2d4dbed03ee3 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -22,10 +22,12 @@ hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba,
 			     struct domain_device *device,
 			     int abort_flag, int tag);
 static int hisi_sas_softreset_ata_disk(struct domain_device *device);
+static int hisi_sas_control_phy(struct asd_sas_phy *sas_phy, enum phy_func func,
+				void *funcdata);
 
-u8 hisi_sas_get_ata_protocol(u8 cmd, int direction)
+u8 hisi_sas_get_ata_protocol(struct host_to_dev_fis *fis, int direction)
 {
-	switch (cmd) {
+	switch (fis->command) {
 	case ATA_CMD_FPDMA_WRITE:
 	case ATA_CMD_FPDMA_READ:
 	case ATA_CMD_FPDMA_RECV:
@@ -77,10 +79,26 @@ u8 hisi_sas_get_ata_protocol(u8 cmd, int direction)
 	case ATA_CMD_ZAC_MGMT_OUT:
 	return HISI_SAS_SATA_PROTOCOL_NONDATA;
 	default:
+	{
+		if (fis->command == ATA_CMD_SET_MAX) {
+			switch (fis->features) {
+			case ATA_SET_MAX_PASSWD:
+			case ATA_SET_MAX_LOCK:
+			return HISI_SAS_SATA_PROTOCOL_PIO;
+
+			case ATA_SET_MAX_PASSWD_DMA:
+			case ATA_SET_MAX_UNLOCK_DMA:
+			return HISI_SAS_SATA_PROTOCOL_DMA;
+
+			default:
+			return HISI_SAS_SATA_PROTOCOL_NONDATA;
+			}
+		}
 		if (direction == DMA_NONE)
 			return HISI_SAS_SATA_PROTOCOL_NONDATA;
 		return HISI_SAS_SATA_PROTOCOL_PIO;
 	}
+	}
 }
 EXPORT_SYMBOL_GPL(hisi_sas_get_ata_protocol);
 
@@ -192,7 +210,8 @@ void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba, struct sas_task *task,
 
 		if (!sas_protocol_ata(task->task_proto))
 			if (slot->n_elem)
-				dma_unmap_sg(dev, task->scatter, slot->n_elem,
+				dma_unmap_sg(dev, task->scatter,
+					     task->num_scatter,
 					     task->data_dir);
 
 		if (sas_dev)
@@ -431,7 +450,8 @@ err_out:
 	dev_err(dev, "task prep: failed[%d]!\n", rc);
 	if (!sas_protocol_ata(task->task_proto))
 		if (n_elem)
-			dma_unmap_sg(dev, task->scatter, n_elem,
+			dma_unmap_sg(dev, task->scatter,
+				     task->num_scatter,
 				     task->data_dir);
 prep_out:
 	return rc;
@@ -578,6 +598,9 @@ static int hisi_sas_dev_found(struct domain_device *device)
 		}
 	}
 
+	dev_info(dev, "dev[%d:%x] found\n",
+		sas_dev->device_id, sas_dev->dev_type);
+
 	return 0;
 }
 
@@ -617,7 +640,7 @@ static int hisi_sas_scan_finished(struct Scsi_Host *shost, unsigned long time)
 static void hisi_sas_phyup_work(struct work_struct *work)
 {
 	struct hisi_sas_phy *phy =
-		container_of(work, struct hisi_sas_phy, phyup_ws);
+		container_of(work, typeof(*phy), works[HISI_PHYE_PHY_UP]);
 	struct hisi_hba *hisi_hba = phy->hisi_hba;
 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
 	int phy_no = sas_phy->id;
@@ -626,10 +649,37 @@ static void hisi_sas_phyup_work(struct work_struct *work)
 	hisi_sas_bytes_dmaed(hisi_hba, phy_no);
 }
 
+static void hisi_sas_linkreset_work(struct work_struct *work)
+{
+	struct hisi_sas_phy *phy =
+		container_of(work, typeof(*phy), works[HISI_PHYE_LINK_RESET]);
+	struct asd_sas_phy *sas_phy = &phy->sas_phy;
+
+	hisi_sas_control_phy(sas_phy, PHY_FUNC_LINK_RESET, NULL);
+}
+
+static const work_func_t hisi_sas_phye_fns[HISI_PHYES_NUM] = {
+	[HISI_PHYE_PHY_UP] = hisi_sas_phyup_work,
+	[HISI_PHYE_LINK_RESET] = hisi_sas_linkreset_work,
+};
+
+bool hisi_sas_notify_phy_event(struct hisi_sas_phy *phy,
+				enum hisi_sas_phy_event event)
+{
+	struct hisi_hba *hisi_hba = phy->hisi_hba;
+
+	if (WARN_ON(event >= HISI_PHYES_NUM))
+		return false;
+
+	return queue_work(hisi_hba->wq, &phy->works[event]);
+}
+EXPORT_SYMBOL_GPL(hisi_sas_notify_phy_event);
+
 static void hisi_sas_phy_init(struct hisi_hba *hisi_hba, int phy_no)
 {
 	struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
+	int i;
 
 	phy->hisi_hba = hisi_hba;
 	phy->port = NULL;
@@ -647,7 +697,8 @@ static void hisi_sas_phy_init(struct hisi_hba *hisi_hba, int phy_no)
 	sas_phy->ha = (struct sas_ha_struct *)hisi_hba->shost->hostdata;
 	sas_phy->lldd_phy = phy;
 
-	INIT_WORK(&phy->phyup_ws, hisi_sas_phyup_work);
+	for (i = 0; i < HISI_PHYES_NUM; i++)
+		INIT_WORK(&phy->works[i], hisi_sas_phye_fns[i]);
 }
 
 static void hisi_sas_port_notify_formed(struct asd_sas_phy *sas_phy)
@@ -702,7 +753,7 @@ static void hisi_sas_release_task(struct hisi_hba *hisi_hba,
 		hisi_sas_do_release_task(hisi_hba, slot->task, slot);
 }
 
-static void hisi_sas_release_tasks(struct hisi_hba *hisi_hba)
+void hisi_sas_release_tasks(struct hisi_hba *hisi_hba)
 {
 	struct hisi_sas_device *sas_dev;
 	struct domain_device *device;
@@ -719,6 +770,7 @@ static void hisi_sas_release_tasks(struct hisi_hba *hisi_hba)
 		hisi_sas_release_task(hisi_hba, device);
 	}
 }
+EXPORT_SYMBOL_GPL(hisi_sas_release_tasks);
 
 static void hisi_sas_dereg_device(struct hisi_hba *hisi_hba,
 				struct domain_device *device)
@@ -733,17 +785,21 @@ static void hisi_sas_dev_gone(struct domain_device *device)
 	struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
 	struct device *dev = hisi_hba->dev;
 
-	dev_info(dev, "found dev[%d:%x] is gone\n",
+	dev_info(dev, "dev[%d:%x] is gone\n",
 		 sas_dev->device_id, sas_dev->dev_type);
 
-	hisi_sas_internal_task_abort(hisi_hba, device,
+	if (!test_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags)) {
+		hisi_sas_internal_task_abort(hisi_hba, device,
 				     HISI_SAS_INT_ABT_DEV, 0);
 
-	hisi_sas_dereg_device(hisi_hba, device);
+		hisi_sas_dereg_device(hisi_hba, device);
 
-	hisi_hba->hw->free_device(hisi_hba, sas_dev);
-	device->lldd_dev = NULL;
-	memset(sas_dev, 0, sizeof(*sas_dev));
+		hisi_hba->hw->clear_itct(hisi_hba, sas_dev);
+		device->lldd_dev = NULL;
+	}
+
+	if (hisi_hba->hw->free_device)
+		hisi_hba->hw->free_device(sas_dev);
 	sas_dev->dev_type = SAS_PHY_UNUSED;
 }
 
@@ -859,12 +915,13 @@ static int hisi_sas_exec_internal_tmf_task(struct domain_device *device,
 			if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) {
 				struct hisi_sas_slot *slot = task->lldd_task;
 
-				dev_err(dev, "abort tmf: TMF task timeout\n");
+				dev_err(dev, "abort tmf: TMF task timeout and not done\n");
 				if (slot)
 					slot->task = NULL;
 
 				goto ex_err;
-			}
+			} else
+				dev_err(dev, "abort tmf: TMF task timeout\n");
 		}
 
 		if (task->task_status.resp == SAS_TASK_COMPLETE &&
@@ -985,27 +1042,42 @@ static int hisi_sas_debug_issue_ssp_tmf(struct domain_device *device,
 				sizeof(ssp_task), tmf);
 }
 
-static void hisi_sas_refresh_port_id(struct hisi_hba *hisi_hba,
-		struct asd_sas_port *sas_port, enum sas_linkrate linkrate)
+static void hisi_sas_refresh_port_id(struct hisi_hba *hisi_hba)
 {
-	struct hisi_sas_device	*sas_dev;
-	struct domain_device *device;
+	u32 state = hisi_hba->hw->get_phys_state(hisi_hba);
 	int i;
 
 	for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) {
-		sas_dev = &hisi_hba->devices[i];
-		device = sas_dev->sas_device;
+		struct hisi_sas_device *sas_dev = &hisi_hba->devices[i];
+		struct domain_device *device = sas_dev->sas_device;
+		struct asd_sas_port *sas_port;
+		struct hisi_sas_port *port;
+		struct hisi_sas_phy *phy = NULL;
+		struct asd_sas_phy *sas_phy;
+
 		if ((sas_dev->dev_type == SAS_PHY_UNUSED)
-				|| !device || (device->port != sas_port))
+				|| !device || !device->port)
 			continue;
 
-		hisi_hba->hw->free_device(hisi_hba, sas_dev);
+		sas_port = device->port;
+		port = to_hisi_sas_port(sas_port);
+
+		list_for_each_entry(sas_phy, &sas_port->phy_list, port_phy_el)
+			if (state & BIT(sas_phy->id)) {
+				phy = sas_phy->lldd_phy;
+				break;
+			}
+
+		if (phy) {
+			port->id = phy->port_id;
 
-		/* Update linkrate of directly attached device. */
-		if (!device->parent)
-			device->linkrate = linkrate;
+			/* Update linkrate of directly attached device. */
+			if (!device->parent)
+				device->linkrate = phy->sas_phy.linkrate;
 
-		hisi_hba->hw->setup_itct(hisi_hba, sas_dev);
+			hisi_hba->hw->setup_itct(hisi_hba, sas_dev);
+		} else
+			port->id = 0xff;
 	}
 }
 
@@ -1020,21 +1092,17 @@ static void hisi_sas_rescan_topology(struct hisi_hba *hisi_hba, u32 old_state,
 		struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
 		struct asd_sas_phy *sas_phy = &phy->sas_phy;
 		struct asd_sas_port *sas_port = sas_phy->port;
-		struct hisi_sas_port *port = to_hisi_sas_port(sas_port);
 		bool do_port_check = !!(_sas_port != sas_port);
 
 		if (!sas_phy->phy->enabled)
 			continue;
 
 		/* Report PHY state change to libsas */
-		if (state & (1 << phy_no)) {
-			if (do_port_check && sas_port) {
+		if (state & BIT(phy_no)) {
+			if (do_port_check && sas_port && sas_port->port_dev) {
 				struct domain_device *dev = sas_port->port_dev;
 
 				_sas_port = sas_port;
-				port->id = phy->port_id;
-				hisi_sas_refresh_port_id(hisi_hba,
-						sas_port, sas_phy->linkrate);
 
 				if (DEV_IS_EXPANDER(dev->dev_type))
 					sas_ha->notify_port_event(sas_phy,
@@ -1045,8 +1113,6 @@ static void hisi_sas_rescan_topology(struct hisi_hba *hisi_hba, u32 old_state,
 			hisi_sas_phy_down(hisi_hba, phy_no, 0);
 
 	}
-
-	drain_workqueue(hisi_hba->shost->work_q);
 }
 
 static int hisi_sas_controller_reset(struct hisi_hba *hisi_hba)
@@ -1063,7 +1129,7 @@ static int hisi_sas_controller_reset(struct hisi_hba *hisi_hba)
 	if (test_and_set_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags))
 		return -1;
 
-	dev_dbg(dev, "controller resetting...\n");
+	dev_info(dev, "controller resetting...\n");
 	old_state = hisi_hba->hw->get_phys_state(hisi_hba);
 
 	scsi_block_requests(shost);
@@ -1072,6 +1138,7 @@ static int hisi_sas_controller_reset(struct hisi_hba *hisi_hba)
 	if (rc) {
 		dev_warn(dev, "controller reset failed (%d)\n", rc);
 		clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags);
+		scsi_unblock_requests(shost);
 		goto out;
 	}
 	spin_lock_irqsave(&hisi_hba->lock, flags);
@@ -1083,15 +1150,14 @@ static int hisi_sas_controller_reset(struct hisi_hba *hisi_hba)
 	/* Init and wait for PHYs to come up and all libsas event finished. */
 	hisi_hba->hw->phys_init(hisi_hba);
 	msleep(1000);
-	drain_workqueue(hisi_hba->wq);
-	drain_workqueue(shost->work_q);
+	hisi_sas_refresh_port_id(hisi_hba);
+	scsi_unblock_requests(shost);
 
 	state = hisi_hba->hw->get_phys_state(hisi_hba);
 	hisi_sas_rescan_topology(hisi_hba, old_state, state);
-	dev_dbg(dev, "controller reset complete\n");
+	dev_info(dev, "controller reset complete\n");
 
 out:
-	scsi_unblock_requests(shost);
 	clear_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags);
 
 	return rc;
@@ -1134,6 +1200,11 @@ static int hisi_sas_abort_task(struct sas_task *task)
 
 		rc2 = hisi_sas_internal_task_abort(hisi_hba, device,
 						   HISI_SAS_INT_ABT_CMD, tag);
+		if (rc2 < 0) {
+			dev_err(dev, "abort task: internal abort (%d)\n", rc2);
+			return TMF_RESP_FUNC_FAILED;
+		}
+
 		/*
 		 * If the TMF finds that the IO is not in the device and also
 		 * the internal abort does not succeed, then it is safe to
@@ -1151,8 +1222,12 @@ static int hisi_sas_abort_task(struct sas_task *task)
 	} else if (task->task_proto & SAS_PROTOCOL_SATA ||
 		task->task_proto & SAS_PROTOCOL_STP) {
 		if (task->dev->dev_type == SAS_SATA_DEV) {
-			hisi_sas_internal_task_abort(hisi_hba, device,
-						     HISI_SAS_INT_ABT_DEV, 0);
+			rc = hisi_sas_internal_task_abort(hisi_hba, device,
+						HISI_SAS_INT_ABT_DEV, 0);
+			if (rc < 0) {
+				dev_err(dev, "abort task: internal abort failed\n");
+				goto out;
+			}
 			hisi_sas_dereg_device(hisi_hba, device);
 			rc = hisi_sas_softreset_ata_disk(device);
 		}
@@ -1163,7 +1238,8 @@ static int hisi_sas_abort_task(struct sas_task *task)
 
 		rc = hisi_sas_internal_task_abort(hisi_hba, device,
 			     HISI_SAS_INT_ABT_CMD, tag);
-		if (rc == TMF_RESP_FUNC_FAILED && task->lldd_task) {
+		if (((rc < 0) || (rc == TMF_RESP_FUNC_FAILED)) &&
+					task->lldd_task) {
 			spin_lock_irqsave(&hisi_hba->lock, flags);
 			hisi_sas_do_release_task(hisi_hba, task, slot);
 			spin_unlock_irqrestore(&hisi_hba->lock, flags);
@@ -1178,12 +1254,29 @@ out:
 
 static int hisi_sas_abort_task_set(struct domain_device *device, u8 *lun)
 {
+	struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
+	struct device *dev = hisi_hba->dev;
 	struct hisi_sas_tmf_task tmf_task;
 	int rc = TMF_RESP_FUNC_FAILED;
+	unsigned long flags;
+
+	rc = hisi_sas_internal_task_abort(hisi_hba, device,
+					HISI_SAS_INT_ABT_DEV, 0);
+	if (rc < 0) {
+		dev_err(dev, "abort task set: internal abort rc=%d\n", rc);
+		return TMF_RESP_FUNC_FAILED;
+	}
+	hisi_sas_dereg_device(hisi_hba, device);
 
 	tmf_task.tmf = TMF_ABORT_TASK_SET;
 	rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task);
 
+	if (rc == TMF_RESP_FUNC_COMPLETE) {
+		spin_lock_irqsave(&hisi_hba->lock, flags);
+		hisi_sas_release_task(hisi_hba, device);
+		spin_unlock_irqrestore(&hisi_hba->lock, flags);
+	}
+
 	return rc;
 }
 
@@ -1213,20 +1306,25 @@ static int hisi_sas_I_T_nexus_reset(struct domain_device *device)
 {
 	struct hisi_sas_device *sas_dev = device->lldd_dev;
 	struct hisi_hba *hisi_hba = dev_to_hisi_hba(device);
-	unsigned long flags;
+	struct device *dev = hisi_hba->dev;
 	int rc = TMF_RESP_FUNC_FAILED;
+	unsigned long flags;
 
 	if (sas_dev->dev_status != HISI_SAS_DEV_EH)
 		return TMF_RESP_FUNC_FAILED;
 	sas_dev->dev_status = HISI_SAS_DEV_NORMAL;
 
-	hisi_sas_internal_task_abort(hisi_hba, device,
+	rc = hisi_sas_internal_task_abort(hisi_hba, device,
 					HISI_SAS_INT_ABT_DEV, 0);
+	if (rc < 0) {
+		dev_err(dev, "I_T nexus reset: internal abort (%d)\n", rc);
+		return TMF_RESP_FUNC_FAILED;
+	}
 	hisi_sas_dereg_device(hisi_hba, device);
 
 	rc = hisi_sas_debug_I_T_nexus_reset(device);
 
-	if (rc == TMF_RESP_FUNC_COMPLETE) {
+	if ((rc == TMF_RESP_FUNC_COMPLETE) || (rc == -ENODEV)) {
 		spin_lock_irqsave(&hisi_hba->lock, flags);
 		hisi_sas_release_task(hisi_hba, device);
 		spin_unlock_irqrestore(&hisi_hba->lock, flags);
@@ -1249,8 +1347,10 @@ static int hisi_sas_lu_reset(struct domain_device *device, u8 *lun)
 		/* Clear internal IO and then hardreset */
 		rc = hisi_sas_internal_task_abort(hisi_hba, device,
 						  HISI_SAS_INT_ABT_DEV, 0);
-		if (rc == TMF_RESP_FUNC_FAILED)
+		if (rc < 0) {
+			dev_err(dev, "lu_reset: internal abort failed\n");
 			goto out;
+		}
 		hisi_sas_dereg_device(hisi_hba, device);
 
 		phy = sas_get_local_phy(device);
@@ -1266,6 +1366,14 @@ static int hisi_sas_lu_reset(struct domain_device *device, u8 *lun)
 	} else {
 		struct hisi_sas_tmf_task tmf_task = { .tmf =  TMF_LU_RESET };
 
+		rc = hisi_sas_internal_task_abort(hisi_hba, device,
+						HISI_SAS_INT_ABT_DEV, 0);
+		if (rc < 0) {
+			dev_err(dev, "lu_reset: internal abort failed\n");
+			goto out;
+		}
+		hisi_sas_dereg_device(hisi_hba, device);
+
 		rc = hisi_sas_debug_issue_ssp_tmf(device, lun, &tmf_task);
 		if (rc == TMF_RESP_FUNC_COMPLETE) {
 			spin_lock_irqsave(&hisi_hba->lock, flags);
@@ -1283,8 +1391,14 @@ out:
 static int hisi_sas_clear_nexus_ha(struct sas_ha_struct *sas_ha)
 {
 	struct hisi_hba *hisi_hba = sas_ha->lldd_ha;
+	HISI_SAS_DECLARE_RST_WORK_ON_STACK(r);
 
-	return hisi_sas_controller_reset(hisi_hba);
+	queue_work(hisi_hba->wq, &r.work);
+	wait_for_completion(r.completion);
+	if (r.done)
+		return TMF_RESP_FUNC_COMPLETE;
+
+	return TMF_RESP_FUNC_FAILED;
 }
 
 static int hisi_sas_query_task(struct sas_task *task)
@@ -1441,8 +1555,14 @@ hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba,
 	struct device *dev = hisi_hba->dev;
 	int res;
 
+	/*
+	 * The interface is not realized means this HW don't support internal
+	 * abort, or don't need to do internal abort. Then here, we return
+	 * TMF_RESP_FUNC_FAILED and let other steps go on, which depends that
+	 * the internal abort has been executed and returned CQ.
+	 */
 	if (!hisi_hba->hw->prep_abort)
-		return -EOPNOTSUPP;
+		return TMF_RESP_FUNC_FAILED;
 
 	task = sas_alloc_slow_task(GFP_KERNEL);
 	if (!task)
@@ -1473,9 +1593,11 @@ hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba,
 
 			if (slot)
 				slot->task = NULL;
-			dev_err(dev, "internal task abort: timeout.\n");
+			dev_err(dev, "internal task abort: timeout and not done.\n");
+			res = -EIO;
 			goto exit;
-		}
+		} else
+			dev_err(dev, "internal task abort: timeout.\n");
 	}
 
 	if (task->task_status.resp == SAS_TASK_COMPLETE &&
@@ -1507,6 +1629,22 @@ static void hisi_sas_port_formed(struct asd_sas_phy *sas_phy)
 	hisi_sas_port_notify_formed(sas_phy);
 }
 
+static void hisi_sas_port_deformed(struct asd_sas_phy *sas_phy)
+{
+}
+
+static int hisi_sas_write_gpio(struct sas_ha_struct *sha, u8 reg_type,
+			u8 reg_index, u8 reg_count, u8 *write_data)
+{
+	struct hisi_hba *hisi_hba = sha->lldd_ha;
+
+	if (!hisi_hba->hw->write_gpio)
+		return -EOPNOTSUPP;
+
+	return hisi_hba->hw->write_gpio(hisi_hba, reg_type,
+				reg_index, reg_count, write_data);
+}
+
 static void hisi_sas_phy_disconnected(struct hisi_sas_phy *phy)
 {
 	phy->phy_attached = 0;
@@ -1561,6 +1699,11 @@ EXPORT_SYMBOL_GPL(hisi_sas_kill_tasklets);
 struct scsi_transport_template *hisi_sas_stt;
 EXPORT_SYMBOL_GPL(hisi_sas_stt);
 
+static struct device_attribute *host_attrs[] = {
+	&dev_attr_phy_event_threshold,
+	NULL,
+};
+
 static struct scsi_host_template _hisi_sas_sht = {
 	.module			= THIS_MODULE,
 	.name			= DRV_NAME,
@@ -1580,6 +1723,7 @@ static struct scsi_host_template _hisi_sas_sht = {
 	.eh_target_reset_handler = sas_eh_target_reset_handler,
 	.target_destroy		= sas_target_destroy,
 	.ioctl			= sas_ioctl,
+	.shost_attrs		= host_attrs,
 };
 struct scsi_host_template *hisi_sas_sht = &_hisi_sas_sht;
 EXPORT_SYMBOL_GPL(hisi_sas_sht);
@@ -1597,6 +1741,8 @@ static struct sas_domain_function_template hisi_sas_transport_ops = {
 	.lldd_query_task	= hisi_sas_query_task,
 	.lldd_clear_nexus_ha = hisi_sas_clear_nexus_ha,
 	.lldd_port_formed	= hisi_sas_port_formed,
+	.lldd_port_deformed = hisi_sas_port_deformed,
+	.lldd_write_gpio = hisi_sas_write_gpio,
 };
 
 void hisi_sas_init_mem(struct hisi_hba *hisi_hba)
@@ -1657,6 +1803,7 @@ int hisi_sas_alloc(struct hisi_hba *hisi_hba, struct Scsi_Host *shost)
 		cq->hisi_hba = hisi_hba;
 
 		/* Delivery queue structure */
+		spin_lock_init(&dq->lock);
 		dq->id = i;
 		dq->hisi_hba = hisi_hba;
 
@@ -1803,6 +1950,17 @@ void hisi_sas_rst_work_handler(struct work_struct *work)
 }
 EXPORT_SYMBOL_GPL(hisi_sas_rst_work_handler);
 
+void hisi_sas_sync_rst_work_handler(struct work_struct *work)
+{
+	struct hisi_sas_rst *rst =
+		container_of(work, struct hisi_sas_rst, work);
+
+	if (!hisi_sas_controller_reset(rst->hisi_hba))
+		rst->done = true;
+	complete(rst->completion);
+}
+EXPORT_SYMBOL_GPL(hisi_sas_sync_rst_work_handler);
+
 int hisi_sas_get_fw_info(struct hisi_hba *hisi_hba)
 {
 	struct device *dev = hisi_hba->dev;
@@ -1909,6 +2067,13 @@ static struct Scsi_Host *hisi_sas_shost_alloc(struct platform_device *pdev,
 	if (IS_ERR(hisi_hba->regs))
 		goto err_out;
 
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	if (res) {
+		hisi_hba->sgpio_regs = devm_ioremap_resource(dev, res);
+		if (IS_ERR(hisi_hba->sgpio_regs))
+			goto err_out;
+	}
+
 	if (hisi_sas_alloc(hisi_hba, shost)) {
 		hisi_sas_free(hisi_hba);
 		goto err_out;
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
index dc6eca8d6afd..679e76f58a0a 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
@@ -544,7 +544,7 @@ static void setup_itct_v1_hw(struct hisi_hba *hisi_hba,
 				(0xff00ULL << ITCT_HDR_REJ_OPEN_TL_OFF));
 }
 
-static void free_device_v1_hw(struct hisi_hba *hisi_hba,
+static void clear_itct_v1_hw(struct hisi_hba *hisi_hba,
 			      struct hisi_sas_device *sas_dev)
 {
 	u64 dev_id = sas_dev->device_id;
@@ -1482,7 +1482,7 @@ static irqreturn_t int_phyup_v1_hw(int irq_no, void *p)
 	else if (phy->identify.device_type != SAS_PHY_UNUSED)
 		phy->identify.target_port_protocols =
 			SAS_PROTOCOL_SMP;
-	queue_work(hisi_hba->wq, &phy->phyup_ws);
+	hisi_sas_notify_phy_event(phy, HISI_PHYE_PHY_UP);
 
 end:
 	hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT2,
@@ -1850,7 +1850,7 @@ static const struct hisi_sas_hw hisi_sas_v1_hw = {
 	.hw_init = hisi_sas_v1_init,
 	.setup_itct = setup_itct_v1_hw,
 	.sl_notify = sl_notify_v1_hw,
-	.free_device = free_device_v1_hw,
+	.clear_itct = clear_itct_v1_hw,
 	.prep_smp = prep_smp_v1_hw,
 	.prep_ssp = prep_ssp_v1_hw,
 	.get_free_slot = get_free_slot_v1_hw,
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
index 5d3467fd728d..4ccb61e2ae5c 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
@@ -240,7 +240,12 @@
 #define CHL_INT1_DMAC_TX_ECC_ERR_MSK	(0x1 << CHL_INT1_DMAC_TX_ECC_ERR_OFF)
 #define CHL_INT1_DMAC_RX_ECC_ERR_OFF	17
 #define CHL_INT1_DMAC_RX_ECC_ERR_MSK	(0x1 << CHL_INT1_DMAC_RX_ECC_ERR_OFF)
+#define CHL_INT1_DMAC_TX_AXI_WR_ERR_OFF	19
+#define CHL_INT1_DMAC_TX_AXI_RD_ERR_OFF	20
+#define CHL_INT1_DMAC_RX_AXI_WR_ERR_OFF	21
+#define CHL_INT1_DMAC_RX_AXI_RD_ERR_OFF	22
 #define CHL_INT2			(PORT_BASE + 0x1bc)
+#define CHL_INT2_SL_IDAF_TOUT_CONF_OFF	0
 #define CHL_INT0_MSK			(PORT_BASE + 0x1c0)
 #define CHL_INT1_MSK			(PORT_BASE + 0x1c4)
 #define CHL_INT2_MSK			(PORT_BASE + 0x1c8)
@@ -952,7 +957,7 @@ static void setup_itct_v2_hw(struct hisi_hba *hisi_hba,
 					(0x1ULL << ITCT_HDR_RTOLT_OFF));
 }
 
-static void free_device_v2_hw(struct hisi_hba *hisi_hba,
+static void clear_itct_v2_hw(struct hisi_hba *hisi_hba,
 			      struct hisi_sas_device *sas_dev)
 {
 	DECLARE_COMPLETION_ONSTACK(completion);
@@ -963,10 +968,6 @@ static void free_device_v2_hw(struct hisi_hba *hisi_hba,
 
 	sas_dev->completion = &completion;
 
-	/* SoC bug workaround */
-	if (dev_is_sata(sas_dev->sas_device))
-		clear_bit(sas_dev->sata_idx, hisi_hba->sata_dev_bitmap);
-
 	/* clear the itct interrupt state */
 	if (ENT_INT_SRC3_ITC_INT_MSK & reg_val)
 		hisi_sas_write32(hisi_hba, ENT_INT_SRC3,
@@ -981,6 +982,15 @@ static void free_device_v2_hw(struct hisi_hba *hisi_hba,
 	}
 }
 
+static void free_device_v2_hw(struct hisi_sas_device *sas_dev)
+{
+	struct hisi_hba *hisi_hba = sas_dev->hisi_hba;
+
+	/* SoC bug workaround */
+	if (dev_is_sata(sas_dev->sas_device))
+		clear_bit(sas_dev->sata_idx, hisi_hba->sata_dev_bitmap);
+}
+
 static int reset_hw_v2_hw(struct hisi_hba *hisi_hba)
 {
 	int i, reset_val;
@@ -1177,8 +1187,8 @@ static void init_reg_v2_hw(struct hisi_hba *hisi_hba)
 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT1, 0xffffffff);
 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT2, 0xfff87fff);
 		hisi_sas_phy_write32(hisi_hba, i, RXOP_CHECK_CFG_H, 0x1000);
-		hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 0xffffffff);
-		hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x8ffffbff);
+		hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 0xff857fff);
+		hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x8ffffbfe);
 		hisi_sas_phy_write32(hisi_hba, i, SL_CFG, 0x13f801fc);
 		hisi_sas_phy_write32(hisi_hba, i, PHY_CTRL_RDY_MSK, 0x0);
 		hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_NOT_RDY_MSK, 0x0);
@@ -2356,6 +2366,7 @@ slot_complete_v2_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot)
 	ts->resp = SAS_TASK_COMPLETE;
 
 	if (unlikely(aborted)) {
+		dev_dbg(dev, "slot_complete: task(%p) aborted\n", task);
 		ts->stat = SAS_ABORTED_TASK;
 		spin_lock_irqsave(&hisi_hba->lock, flags);
 		hisi_sas_slot_task_free(hisi_hba, task, slot);
@@ -2400,6 +2411,7 @@ slot_complete_v2_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot)
 		(!(complete_hdr->dw0 & CMPLT_HDR_RSPNS_XFRD_MSK))) {
 		u32 err_phase = (complete_hdr->dw0 & CMPLT_HDR_ERR_PHASE_MSK)
 				>> CMPLT_HDR_ERR_PHASE_OFF;
+		u32 *error_info = hisi_sas_status_buf_addr_mem(slot);
 
 		/* Analyse error happens on which phase TX or RX */
 		if (ERR_ON_TX_PHASE(err_phase))
@@ -2407,6 +2419,16 @@ slot_complete_v2_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot)
 		else if (ERR_ON_RX_PHASE(err_phase))
 			slot_err_v2_hw(hisi_hba, task, slot, 2);
 
+		if (ts->stat != SAS_DATA_UNDERRUN)
+			dev_info(dev, "erroneous completion iptt=%d task=%p "
+				"CQ hdr: 0x%x 0x%x 0x%x 0x%x "
+				"Error info: 0x%x 0x%x 0x%x 0x%x\n",
+				slot->idx, task,
+				complete_hdr->dw0, complete_hdr->dw1,
+				complete_hdr->act, complete_hdr->dw3,
+				error_info[0], error_info[1],
+				error_info[2], error_info[3]);
+
 		if (unlikely(slot->abort))
 			return ts->stat;
 		goto out;
@@ -2456,7 +2478,7 @@ slot_complete_v2_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot)
 	}
 
 	if (!slot->port->port_attached) {
-		dev_err(dev, "slot complete: port %d has removed\n",
+		dev_warn(dev, "slot complete: port %d has removed\n",
 			slot->port->sas_port.id);
 		ts->stat = SAS_PHY_DOWN;
 	}
@@ -2517,7 +2539,7 @@ static int prep_ata_v2_hw(struct hisi_hba *hisi_hba,
 		dw1 |= 1 << CMD_HDR_RESET_OFF;
 
 	dw1 |= (hisi_sas_get_ata_protocol(
-		task->ata_task.fis.command, task->data_dir))
+		&task->ata_task.fis, task->data_dir))
 		<< CMD_HDR_FRAME_TYPE_OFF;
 	dw1 |= sas_dev->device_id << CMD_HDR_DEV_ID_OFF;
 	hdr->dw1 = cpu_to_le32(dw1);
@@ -2687,7 +2709,7 @@ static int phy_up_v2_hw(int phy_no, struct hisi_hba *hisi_hba)
 		if (!timer_pending(&hisi_hba->timer))
 			set_link_timer_quirk(hisi_hba);
 	}
-	queue_work(hisi_hba->wq, &phy->phyup_ws);
+	hisi_sas_notify_phy_event(phy, HISI_PHYE_PHY_UP);
 
 end:
 	hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0,
@@ -2713,10 +2735,12 @@ static int phy_down_v2_hw(int phy_no, struct hisi_hba *hisi_hba)
 	u32 phy_state, sl_ctrl, txid_auto;
 	struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
 	struct hisi_sas_port *port = phy->port;
+	struct device *dev = hisi_hba->dev;
 
 	hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_NOT_RDY_MSK, 1);
 
 	phy_state = hisi_sas_read32(hisi_hba, PHY_STATE);
+	dev_info(dev, "phydown: phy%d phy_state=0x%x\n", phy_no, phy_state);
 	hisi_sas_phy_down(hisi_hba, phy_no, (phy_state & 1 << phy_no) ? 1 : 0);
 
 	sl_ctrl = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
@@ -2813,6 +2837,33 @@ static void phy_bcast_v2_hw(int phy_no, struct hisi_hba *hisi_hba)
 	hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 0);
 }
 
+static const struct hisi_sas_hw_error port_ecc_axi_error[] = {
+	{
+		.irq_msk = BIT(CHL_INT1_DMAC_TX_ECC_ERR_OFF),
+		.msg = "dmac_tx_ecc_bad_err",
+	},
+	{
+		.irq_msk = BIT(CHL_INT1_DMAC_RX_ECC_ERR_OFF),
+		.msg = "dmac_rx_ecc_bad_err",
+	},
+	{
+		.irq_msk = BIT(CHL_INT1_DMAC_TX_AXI_WR_ERR_OFF),
+		.msg = "dma_tx_axi_wr_err",
+	},
+	{
+		.irq_msk = BIT(CHL_INT1_DMAC_TX_AXI_RD_ERR_OFF),
+		.msg = "dma_tx_axi_rd_err",
+	},
+	{
+		.irq_msk = BIT(CHL_INT1_DMAC_RX_AXI_WR_ERR_OFF),
+		.msg = "dma_rx_axi_wr_err",
+	},
+	{
+		.irq_msk = BIT(CHL_INT1_DMAC_RX_AXI_RD_ERR_OFF),
+		.msg = "dma_rx_axi_rd_err",
+	},
+};
+
 static irqreturn_t int_chnl_int_v2_hw(int irq_no, void *p)
 {
 	struct hisi_hba *hisi_hba = p;
@@ -2829,40 +2880,55 @@ static irqreturn_t int_chnl_int_v2_hw(int irq_no, void *p)
 			HGC_INVLD_DQE_INFO_FB_CH3_OFF) & 0x1ff;
 
 	while (irq_msk) {
-		if (irq_msk & (1 << phy_no)) {
-			u32 irq_value0 = hisi_sas_phy_read32(hisi_hba, phy_no,
-							     CHL_INT0);
-			u32 irq_value1 = hisi_sas_phy_read32(hisi_hba, phy_no,
-							     CHL_INT1);
-			u32 irq_value2 = hisi_sas_phy_read32(hisi_hba, phy_no,
-							     CHL_INT2);
-
-			if (irq_value1) {
-				if (irq_value1 & (CHL_INT1_DMAC_RX_ECC_ERR_MSK |
-						  CHL_INT1_DMAC_TX_ECC_ERR_MSK))
-					panic("%s: DMAC RX/TX ecc bad error!\
-					       (0x%x)",
-					      dev_name(dev), irq_value1);
-
-				hisi_sas_phy_write32(hisi_hba, phy_no,
-						     CHL_INT1, irq_value1);
-			}
+		u32 irq_value0 = hisi_sas_phy_read32(hisi_hba, phy_no,
+						     CHL_INT0);
+		u32 irq_value1 = hisi_sas_phy_read32(hisi_hba, phy_no,
+						     CHL_INT1);
+		u32 irq_value2 = hisi_sas_phy_read32(hisi_hba, phy_no,
+						     CHL_INT2);
+
+		if ((irq_msk & (1 << phy_no)) && irq_value1) {
+			int i;
 
-			if (irq_value2)
-				hisi_sas_phy_write32(hisi_hba, phy_no,
-						     CHL_INT2, irq_value2);
+			for (i = 0; i < ARRAY_SIZE(port_ecc_axi_error); i++) {
+				const struct hisi_sas_hw_error *error =
+						&port_ecc_axi_error[i];
+
+				if (!(irq_value1 & error->irq_msk))
+					continue;
+
+				dev_warn(dev, "%s error (phy%d 0x%x) found!\n",
+					error->msg, phy_no, irq_value1);
+				queue_work(hisi_hba->wq, &hisi_hba->rst_work);
+			}
 
+			hisi_sas_phy_write32(hisi_hba, phy_no,
+					     CHL_INT1, irq_value1);
+		}
 
-			if (irq_value0) {
-				if (irq_value0 & CHL_INT0_SL_RX_BCST_ACK_MSK)
-					phy_bcast_v2_hw(phy_no, hisi_hba);
+		if ((irq_msk & (1 << phy_no)) && irq_value2) {
+			struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
 
-				hisi_sas_phy_write32(hisi_hba, phy_no,
-						CHL_INT0, irq_value0
-						& (~CHL_INT0_HOTPLUG_TOUT_MSK)
-						& (~CHL_INT0_SL_PHY_ENABLE_MSK)
-						& (~CHL_INT0_NOT_RDY_MSK));
+			if (irq_value2 & BIT(CHL_INT2_SL_IDAF_TOUT_CONF_OFF)) {
+				dev_warn(dev, "phy%d identify timeout\n",
+						phy_no);
+				hisi_sas_notify_phy_event(phy,
+						HISI_PHYE_LINK_RESET);
 			}
+
+			hisi_sas_phy_write32(hisi_hba, phy_no,
+						 CHL_INT2, irq_value2);
+		}
+
+		if ((irq_msk & (1 << phy_no)) && irq_value0) {
+			if (irq_value0 & CHL_INT0_SL_RX_BCST_ACK_MSK)
+				phy_bcast_v2_hw(phy_no, hisi_hba);
+
+			hisi_sas_phy_write32(hisi_hba, phy_no,
+					CHL_INT0, irq_value0
+					& (~CHL_INT0_HOTPLUG_TOUT_MSK)
+					& (~CHL_INT0_SL_PHY_ENABLE_MSK)
+					& (~CHL_INT0_NOT_RDY_MSK));
 		}
 		irq_msk &= ~(1 << phy_no);
 		phy_no++;
@@ -2906,7 +2972,7 @@ static void multi_bit_ecc_error_process_v2_hw(struct hisi_hba *hisi_hba,
 			val = hisi_sas_read32(hisi_hba, ecc_error->reg);
 			val &= ecc_error->msk;
 			val >>= ecc_error->shift;
-			dev_warn(dev, ecc_error->msg, irq_value, val);
+			dev_err(dev, ecc_error->msg, irq_value, val);
 			queue_work(hisi_hba->wq, &hisi_hba->rst_work);
 		}
 	}
@@ -3015,12 +3081,12 @@ static irqreturn_t fatal_axi_int_v2_hw(int irq_no, void *p)
 			for (; sub->msk || sub->msg; sub++) {
 				if (!(err_value & sub->msk))
 					continue;
-				dev_warn(dev, "%s (0x%x) found!\n",
+				dev_err(dev, "%s (0x%x) found!\n",
 					 sub->msg, irq_value);
 				queue_work(hisi_hba->wq, &hisi_hba->rst_work);
 			}
 		} else {
-			dev_warn(dev, "%s (0x%x) found!\n",
+			dev_err(dev, "%s (0x%x) found!\n",
 				 axi_error->msg, irq_value);
 			queue_work(hisi_hba->wq, &hisi_hba->rst_work);
 		}
@@ -3206,7 +3272,7 @@ static irqreturn_t sata_int_v2_hw(int irq_no, void *p)
 	phy->identify.device_type = SAS_SATA_DEV;
 	phy->frame_rcvd_size = sizeof(struct dev_to_host_fis);
 	phy->identify.target_port_protocols = SAS_PROTOCOL_SATA;
-	queue_work(hisi_hba->wq, &phy->phyup_ws);
+	hisi_sas_notify_phy_event(phy, HISI_PHYE_PHY_UP);
 
 end:
 	hisi_sas_write32(hisi_hba, ENT_INT_SRC1 + offset, ent_tmp);
@@ -3392,7 +3458,7 @@ static int soft_reset_v2_hw(struct hisi_hba *hisi_hba)
 
 		udelay(10);
 		if (cnt++ > 10) {
-			dev_info(dev, "wait axi bus state to idle timeout!\n");
+			dev_err(dev, "wait axi bus state to idle timeout!\n");
 			return -1;
 		}
 	}
@@ -3408,6 +3474,44 @@ static int soft_reset_v2_hw(struct hisi_hba *hisi_hba)
 	return 0;
 }
 
+static int write_gpio_v2_hw(struct hisi_hba *hisi_hba, u8 reg_type,
+			u8 reg_index, u8 reg_count, u8 *write_data)
+{
+	struct device *dev = hisi_hba->dev;
+	int phy_no, count;
+
+	if (!hisi_hba->sgpio_regs)
+		return -EOPNOTSUPP;
+
+	switch (reg_type) {
+	case SAS_GPIO_REG_TX:
+		count = reg_count * 4;
+		count = min(count, hisi_hba->n_phy);
+
+		for (phy_no = 0; phy_no < count; phy_no++) {
+			/*
+			 * GPIO_TX[n] register has the highest numbered drive
+			 * of the four in the first byte and the lowest
+			 * numbered drive in the fourth byte.
+			 * See SFF-8485 Rev. 0.7 Table 24.
+			 */
+			void __iomem  *reg_addr = hisi_hba->sgpio_regs +
+					reg_index * 4 + phy_no;
+			int data_idx = phy_no + 3 - (phy_no % 4) * 2;
+
+			writeb(write_data[data_idx], reg_addr);
+		}
+
+		break;
+	default:
+		dev_err(dev, "write gpio: unsupported or bad reg type %d\n",
+				reg_type);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static const struct hisi_sas_hw hisi_sas_v2_hw = {
 	.hw_init = hisi_sas_v2_init,
 	.setup_itct = setup_itct_v2_hw,
@@ -3415,6 +3519,7 @@ static const struct hisi_sas_hw hisi_sas_v2_hw = {
 	.alloc_dev = alloc_dev_quirk_v2_hw,
 	.sl_notify = sl_notify_v2_hw,
 	.get_wideport_bitmap = get_wideport_bitmap_v2_hw,
+	.clear_itct = clear_itct_v2_hw,
 	.free_device = free_device_v2_hw,
 	.prep_smp = prep_smp_v2_hw,
 	.prep_ssp = prep_ssp_v2_hw,
@@ -3434,6 +3539,7 @@ static const struct hisi_sas_hw hisi_sas_v2_hw = {
 	.complete_hdr_size = sizeof(struct hisi_sas_complete_v2_hdr),
 	.soft_reset = soft_reset_v2_hw,
 	.get_phys_state = get_phys_state_v2_hw,
+	.write_gpio = write_gpio_v2_hw,
 };
 
 static int hisi_sas_v2_probe(struct platform_device *pdev)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index 19b1f2ffec17..a1f18689729a 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -140,6 +140,7 @@
 #define RX_IDAF_DWORD0			(PORT_BASE + 0xc4)
 #define RXOP_CHECK_CFG_H		(PORT_BASE + 0xfc)
 #define STP_LINK_TIMER			(PORT_BASE + 0x120)
+#define STP_LINK_TIMEOUT_STATE		(PORT_BASE + 0x124)
 #define CON_CFG_DRIVER			(PORT_BASE + 0x130)
 #define SAS_SSP_CON_TIMER_CFG		(PORT_BASE + 0x134)
 #define SAS_SMP_CON_TIMER_CFG		(PORT_BASE + 0x138)
@@ -165,6 +166,8 @@
 #define CHL_INT1_DMAC_RX_AXI_WR_ERR_OFF	21
 #define CHL_INT1_DMAC_RX_AXI_RD_ERR_OFF	22
 #define CHL_INT2			(PORT_BASE + 0x1bc)
+#define CHL_INT2_SL_IDAF_TOUT_CONF_OFF	0
+#define CHL_INT2_STP_LINK_TIMEOUT_OFF	31
 #define CHL_INT0_MSK			(PORT_BASE + 0x1c0)
 #define CHL_INT1_MSK			(PORT_BASE + 0x1c4)
 #define CHL_INT2_MSK			(PORT_BASE + 0x1c8)
@@ -204,6 +207,13 @@
 #define AM_ROB_ECC_MULBIT_ERR_ADDR_OFF	8
 #define AM_ROB_ECC_MULBIT_ERR_ADDR_MSK	(0xff << AM_ROB_ECC_MULBIT_ERR_ADDR_OFF)
 
+/* RAS registers need init */
+#define RAS_BASE		(0x6000)
+#define SAS_RAS_INTR0			(RAS_BASE)
+#define SAS_RAS_INTR1			(RAS_BASE + 0x04)
+#define SAS_RAS_INTR0_MASK		(RAS_BASE + 0x08)
+#define SAS_RAS_INTR1_MASK		(RAS_BASE + 0x0c)
+
 /* HW dma structures */
 /* Delivery queue header */
 /* dw0 */
@@ -422,7 +432,7 @@ static void init_reg_v3_hw(struct hisi_hba *hisi_hba)
 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT2, 0xffffffff);
 		hisi_sas_phy_write32(hisi_hba, i, RXOP_CHECK_CFG_H, 0x1000);
 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 0xff87ffff);
-		hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x8ffffbff);
+		hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0xffffbfe);
 		hisi_sas_phy_write32(hisi_hba, i, PHY_CTRL_RDY_MSK, 0x0);
 		hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_NOT_RDY_MSK, 0x0);
 		hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_DWS_RESET_MSK, 0x0);
@@ -496,6 +506,10 @@ static void init_reg_v3_hw(struct hisi_hba *hisi_hba)
 
 	hisi_sas_write32(hisi_hba, SATA_INITI_D2H_STORE_ADDR_HI,
 			 upper_32_bits(hisi_hba->initial_fis_dma));
+
+	/* RAS registers init */
+	hisi_sas_write32(hisi_hba, SAS_RAS_INTR0_MASK, 0x0);
+	hisi_sas_write32(hisi_hba, SAS_RAS_INTR1_MASK, 0x0);
 }
 
 static void config_phy_opt_mode_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
@@ -588,7 +602,7 @@ static void setup_itct_v3_hw(struct hisi_hba *hisi_hba,
 					(0x1ULL << ITCT_HDR_RTOLT_OFF));
 }
 
-static void free_device_v3_hw(struct hisi_hba *hisi_hba,
+static void clear_itct_v3_hw(struct hisi_hba *hisi_hba,
 			      struct hisi_sas_device *sas_dev)
 {
 	DECLARE_COMPLETION_ONSTACK(completion);
@@ -1033,7 +1047,7 @@ static int prep_ata_v3_hw(struct hisi_hba *hisi_hba,
 		dw1 |= 1 << CMD_HDR_RESET_OFF;
 
 	dw1 |= (hisi_sas_get_ata_protocol(
-		task->ata_task.fis.command, task->data_dir))
+		&task->ata_task.fis, task->data_dir))
 		<< CMD_HDR_FRAME_TYPE_OFF;
 	dw1 |= sas_dev->device_id << CMD_HDR_DEV_ID_OFF;
 
@@ -1138,7 +1152,7 @@ static int phy_up_v3_hw(int phy_no, struct hisi_hba *hisi_hba)
 		struct dev_to_host_fis *fis;
 		u8 attached_sas_addr[SAS_ADDR_SIZE] = {0};
 
-		dev_info(dev, "phyup: phy%d link_rate=%d\n", phy_no, link_rate);
+		dev_info(dev, "phyup: phy%d link_rate=%d(sata)\n", phy_no, link_rate);
 		initial_fis = &hisi_hba->initial_fis[phy_no];
 		fis = &initial_fis->fis;
 		sas_phy->oob_mode = SATA_OOB_MODE;
@@ -1181,7 +1195,7 @@ static int phy_up_v3_hw(int phy_no, struct hisi_hba *hisi_hba)
 
 	phy->port_id = port_id;
 	phy->phy_attached = 1;
-	queue_work(hisi_hba->wq, &phy->phyup_ws);
+	hisi_sas_notify_phy_event(phy, HISI_PHYE_PHY_UP);
 
 end:
 	hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0,
@@ -1322,7 +1336,7 @@ static irqreturn_t int_chnl_int_v3_hw(int irq_no, void *p)
 				if (!(irq_value1 & error->irq_msk))
 					continue;
 
-				dev_warn(dev, "%s error (phy%d 0x%x) found!\n",
+				dev_err(dev, "%s error (phy%d 0x%x) found!\n",
 					error->msg, phy_no, irq_value1);
 				queue_work(hisi_hba->wq, &hisi_hba->rst_work);
 			}
@@ -1331,9 +1345,31 @@ static irqreturn_t int_chnl_int_v3_hw(int irq_no, void *p)
 					     CHL_INT1, irq_value1);
 		}
 
-		if (irq_msk & (8 << (phy_no * 4)) && irq_value2)
+		if (irq_msk & (8 << (phy_no * 4)) && irq_value2) {
+			struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
+
+			if (irq_value2 & BIT(CHL_INT2_SL_IDAF_TOUT_CONF_OFF)) {
+				dev_warn(dev, "phy%d identify timeout\n",
+							phy_no);
+				hisi_sas_notify_phy_event(phy,
+					HISI_PHYE_LINK_RESET);
+
+			}
+
+			if (irq_value2 & BIT(CHL_INT2_STP_LINK_TIMEOUT_OFF)) {
+				u32 reg_value = hisi_sas_phy_read32(hisi_hba,
+						phy_no, STP_LINK_TIMEOUT_STATE);
+
+				dev_warn(dev, "phy%d stp link timeout (0x%x)\n",
+							phy_no, reg_value);
+				if (reg_value & BIT(4))
+					hisi_sas_notify_phy_event(phy,
+						HISI_PHYE_LINK_RESET);
+			}
+
 			hisi_sas_phy_write32(hisi_hba, phy_no,
 					     CHL_INT2, irq_value2);
+		}
 
 
 		if (irq_msk & (2 << (phy_no * 4)) && irq_value0) {
@@ -1432,12 +1468,12 @@ static irqreturn_t fatal_axi_int_v3_hw(int irq_no, void *p)
 				if (!(err_value & sub->msk))
 					continue;
 
-				dev_warn(dev, "%s error (0x%x) found!\n",
+				dev_err(dev, "%s error (0x%x) found!\n",
 					sub->msg, irq_value);
 				queue_work(hisi_hba->wq, &hisi_hba->rst_work);
 			}
 		} else {
-			dev_warn(dev, "%s error (0x%x) found!\n",
+			dev_err(dev, "%s error (0x%x) found!\n",
 				error->msg, irq_value);
 			queue_work(hisi_hba->wq, &hisi_hba->rst_work);
 		}
@@ -1542,6 +1578,7 @@ slot_complete_v3_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot)
 	memset(ts, 0, sizeof(*ts));
 	ts->resp = SAS_TASK_COMPLETE;
 	if (unlikely(aborted)) {
+		dev_dbg(dev, "slot complete: task(%p) aborted\n", task);
 		ts->stat = SAS_ABORTED_TASK;
 		spin_lock_irqsave(&hisi_hba->lock, flags);
 		hisi_sas_slot_task_free(hisi_hba, task, slot);
@@ -1583,7 +1620,18 @@ slot_complete_v3_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot)
 
 	/* check for erroneous completion */
 	if ((complete_hdr->dw0 & CMPLT_HDR_CMPLT_MSK) == 0x3) {
+		u32 *error_info = hisi_sas_status_buf_addr_mem(slot);
+
 		slot_err_v3_hw(hisi_hba, task, slot);
+		if (ts->stat != SAS_DATA_UNDERRUN)
+			dev_info(dev, "erroneous completion iptt=%d task=%p "
+				"CQ hdr: 0x%x 0x%x 0x%x 0x%x "
+				"Error info: 0x%x 0x%x 0x%x 0x%x\n",
+				slot->idx, task,
+				complete_hdr->dw0, complete_hdr->dw1,
+				complete_hdr->act, complete_hdr->dw3,
+				error_info[0], error_info[1],
+				error_info[2], error_info[3]);
 		if (unlikely(slot->abort))
 			return ts->stat;
 		goto out;
@@ -1628,7 +1676,7 @@ slot_complete_v3_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot)
 	}
 
 	if (!slot->port->port_attached) {
-		dev_err(dev, "slot complete: port %d has removed\n",
+		dev_warn(dev, "slot complete: port %d has removed\n",
 			slot->port->sas_port.id);
 		ts->stat = SAS_PHY_DOWN;
 	}
@@ -1653,9 +1701,8 @@ static void cq_tasklet_v3_hw(unsigned long val)
 	struct hisi_sas_cq *cq = (struct hisi_sas_cq *)val;
 	struct hisi_hba *hisi_hba = cq->hisi_hba;
 	struct hisi_sas_slot *slot;
-	struct hisi_sas_itct *itct;
 	struct hisi_sas_complete_v3_hdr *complete_queue;
-	u32 rd_point = cq->rd_point, wr_point, dev_id;
+	u32 rd_point = cq->rd_point, wr_point;
 	int queue = cq->id;
 	struct hisi_sas_dq *dq = &hisi_hba->dq[queue];
 
@@ -1671,38 +1718,11 @@ static void cq_tasklet_v3_hw(unsigned long val)
 
 		complete_hdr = &complete_queue[rd_point];
 
-		/* Check for NCQ completion */
-		if (complete_hdr->act) {
-			u32 act_tmp = complete_hdr->act;
-			int ncq_tag_count = ffs(act_tmp);
-
-			dev_id = (complete_hdr->dw1 & CMPLT_HDR_DEV_ID_MSK) >>
-				 CMPLT_HDR_DEV_ID_OFF;
-			itct = &hisi_hba->itct[dev_id];
-
-			/* The NCQ tags are held in the itct header */
-			while (ncq_tag_count) {
-				__le64 *ncq_tag = &itct->qw4_15[0];
-
-				ncq_tag_count -= 1;
-				iptt = (ncq_tag[ncq_tag_count / 5]
-					>> (ncq_tag_count % 5) * 12) & 0xfff;
-
-				slot = &hisi_hba->slot_info[iptt];
-				slot->cmplt_queue_slot = rd_point;
-				slot->cmplt_queue = queue;
-				slot_complete_v3_hw(hisi_hba, slot);
-
-				act_tmp &= ~(1 << ncq_tag_count);
-				ncq_tag_count = ffs(act_tmp);
-			}
-		} else {
-			iptt = (complete_hdr->dw1) & CMPLT_HDR_IPTT_MSK;
-			slot = &hisi_hba->slot_info[iptt];
-			slot->cmplt_queue_slot = rd_point;
-			slot->cmplt_queue = queue;
-			slot_complete_v3_hw(hisi_hba, slot);
-		}
+		iptt = (complete_hdr->dw1) & CMPLT_HDR_IPTT_MSK;
+		slot = &hisi_hba->slot_info[iptt];
+		slot->cmplt_queue_slot = rd_point;
+		slot->cmplt_queue = queue;
+		slot_complete_v3_hw(hisi_hba, slot);
 
 		if (++rd_point >= HISI_SAS_QUEUE_SLOTS)
 			rd_point = 0;
@@ -1951,7 +1971,7 @@ static const struct hisi_sas_hw hisi_sas_v3_hw = {
 	.max_command_entries = HISI_SAS_COMMAND_ENTRIES_V3_HW,
 	.get_wideport_bitmap = get_wideport_bitmap_v3_hw,
 	.complete_hdr_size = sizeof(struct hisi_sas_complete_v3_hdr),
-	.free_device = free_device_v3_hw,
+	.clear_itct = clear_itct_v3_hw,
 	.sl_notify = sl_notify_v3_hw,
 	.prep_ssp = prep_ssp_v3_hw,
 	.prep_smp = prep_smp_v3_hw,
@@ -2157,21 +2177,243 @@ static void hisi_sas_v3_remove(struct pci_dev *pdev)
 	scsi_host_put(shost);
 }
 
+static const struct hisi_sas_hw_error sas_ras_intr0_nfe[] = {
+	{ .irq_msk = BIT(19), .msg = "HILINK_INT" },
+	{ .irq_msk = BIT(20), .msg = "HILINK_PLL0_OUT_OF_LOCK" },
+	{ .irq_msk = BIT(21), .msg = "HILINK_PLL1_OUT_OF_LOCK" },
+	{ .irq_msk = BIT(22), .msg = "HILINK_LOSS_OF_REFCLK0" },
+	{ .irq_msk = BIT(23), .msg = "HILINK_LOSS_OF_REFCLK1" },
+	{ .irq_msk = BIT(24), .msg = "DMAC0_TX_POISON" },
+	{ .irq_msk = BIT(25), .msg = "DMAC1_TX_POISON" },
+	{ .irq_msk = BIT(26), .msg = "DMAC2_TX_POISON" },
+	{ .irq_msk = BIT(27), .msg = "DMAC3_TX_POISON" },
+	{ .irq_msk = BIT(28), .msg = "DMAC4_TX_POISON" },
+	{ .irq_msk = BIT(29), .msg = "DMAC5_TX_POISON" },
+	{ .irq_msk = BIT(30), .msg = "DMAC6_TX_POISON" },
+	{ .irq_msk = BIT(31), .msg = "DMAC7_TX_POISON" },
+};
+
+static const struct hisi_sas_hw_error sas_ras_intr1_nfe[] = {
+	{ .irq_msk = BIT(0), .msg = "RXM_CFG_MEM3_ECC2B_INTR" },
+	{ .irq_msk = BIT(1), .msg = "RXM_CFG_MEM2_ECC2B_INTR" },
+	{ .irq_msk = BIT(2), .msg = "RXM_CFG_MEM1_ECC2B_INTR" },
+	{ .irq_msk = BIT(3), .msg = "RXM_CFG_MEM0_ECC2B_INTR" },
+	{ .irq_msk = BIT(4), .msg = "HGC_CQE_ECC2B_INTR" },
+	{ .irq_msk = BIT(5), .msg = "LM_CFG_IOSTL_ECC2B_INTR" },
+	{ .irq_msk = BIT(6), .msg = "LM_CFG_ITCTL_ECC2B_INTR" },
+	{ .irq_msk = BIT(7), .msg = "HGC_ITCT_ECC2B_INTR" },
+	{ .irq_msk = BIT(8), .msg = "HGC_IOST_ECC2B_INTR" },
+	{ .irq_msk = BIT(9), .msg = "HGC_DQE_ECC2B_INTR" },
+	{ .irq_msk = BIT(10), .msg = "DMAC0_RAM_ECC2B_INTR" },
+	{ .irq_msk = BIT(11), .msg = "DMAC1_RAM_ECC2B_INTR" },
+	{ .irq_msk = BIT(12), .msg = "DMAC2_RAM_ECC2B_INTR" },
+	{ .irq_msk = BIT(13), .msg = "DMAC3_RAM_ECC2B_INTR" },
+	{ .irq_msk = BIT(14), .msg = "DMAC4_RAM_ECC2B_INTR" },
+	{ .irq_msk = BIT(15), .msg = "DMAC5_RAM_ECC2B_INTR" },
+	{ .irq_msk = BIT(16), .msg = "DMAC6_RAM_ECC2B_INTR" },
+	{ .irq_msk = BIT(17), .msg = "DMAC7_RAM_ECC2B_INTR" },
+	{ .irq_msk = BIT(18), .msg = "OOO_RAM_ECC2B_INTR" },
+	{ .irq_msk = BIT(20), .msg = "HGC_DQE_POISON_INTR" },
+	{ .irq_msk = BIT(21), .msg = "HGC_IOST_POISON_INTR" },
+	{ .irq_msk = BIT(22), .msg = "HGC_ITCT_POISON_INTR" },
+	{ .irq_msk = BIT(23), .msg = "HGC_ITCT_NCQ_POISON_INTR" },
+	{ .irq_msk = BIT(24), .msg = "DMAC0_RX_POISON" },
+	{ .irq_msk = BIT(25), .msg = "DMAC1_RX_POISON" },
+	{ .irq_msk = BIT(26), .msg = "DMAC2_RX_POISON" },
+	{ .irq_msk = BIT(27), .msg = "DMAC3_RX_POISON" },
+	{ .irq_msk = BIT(28), .msg = "DMAC4_RX_POISON" },
+	{ .irq_msk = BIT(29), .msg = "DMAC5_RX_POISON" },
+	{ .irq_msk = BIT(30), .msg = "DMAC6_RX_POISON" },
+	{ .irq_msk = BIT(31), .msg = "DMAC7_RX_POISON" },
+};
+
+static bool process_non_fatal_error_v3_hw(struct hisi_hba *hisi_hba)
+{
+	struct device *dev = hisi_hba->dev;
+	const struct hisi_sas_hw_error *ras_error;
+	bool need_reset = false;
+	u32 irq_value;
+	int i;
+
+	irq_value = hisi_sas_read32(hisi_hba, SAS_RAS_INTR0);
+	for (i = 0; i < ARRAY_SIZE(sas_ras_intr0_nfe); i++) {
+		ras_error = &sas_ras_intr0_nfe[i];
+		if (ras_error->irq_msk & irq_value) {
+			dev_warn(dev, "SAS_RAS_INTR0: %s(irq_value=0x%x) found.\n",
+					ras_error->msg, irq_value);
+			need_reset = true;
+		}
+	}
+	hisi_sas_write32(hisi_hba, SAS_RAS_INTR0, irq_value);
+
+	irq_value = hisi_sas_read32(hisi_hba, SAS_RAS_INTR1);
+	for (i = 0; i < ARRAY_SIZE(sas_ras_intr1_nfe); i++) {
+		ras_error = &sas_ras_intr1_nfe[i];
+		if (ras_error->irq_msk & irq_value) {
+			dev_warn(dev, "SAS_RAS_INTR1: %s(irq_value=0x%x) found.\n",
+					ras_error->msg, irq_value);
+			need_reset = true;
+		}
+	}
+	hisi_sas_write32(hisi_hba, SAS_RAS_INTR1, irq_value);
+
+	return need_reset;
+}
+
+static pci_ers_result_t hisi_sas_error_detected_v3_hw(struct pci_dev *pdev,
+		pci_channel_state_t state)
+{
+	struct sas_ha_struct *sha = pci_get_drvdata(pdev);
+	struct hisi_hba *hisi_hba = sha->lldd_ha;
+	struct device *dev = hisi_hba->dev;
+
+	dev_info(dev, "PCI error: detected callback, state(%d)!!\n", state);
+	if (state == pci_channel_io_perm_failure)
+		return PCI_ERS_RESULT_DISCONNECT;
+
+	if (process_non_fatal_error_v3_hw(hisi_hba))
+		return PCI_ERS_RESULT_NEED_RESET;
+
+	return PCI_ERS_RESULT_CAN_RECOVER;
+}
+
+static pci_ers_result_t hisi_sas_mmio_enabled_v3_hw(struct pci_dev *pdev)
+{
+	return PCI_ERS_RESULT_RECOVERED;
+}
+
+static pci_ers_result_t hisi_sas_slot_reset_v3_hw(struct pci_dev *pdev)
+{
+	struct sas_ha_struct *sha = pci_get_drvdata(pdev);
+	struct hisi_hba *hisi_hba = sha->lldd_ha;
+	struct device *dev = hisi_hba->dev;
+	HISI_SAS_DECLARE_RST_WORK_ON_STACK(r);
+
+	dev_info(dev, "PCI error: slot reset callback!!\n");
+	queue_work(hisi_hba->wq, &r.work);
+	wait_for_completion(r.completion);
+	if (r.done)
+		return PCI_ERS_RESULT_RECOVERED;
+
+	return PCI_ERS_RESULT_DISCONNECT;
+}
+
 enum {
 	/* instances of the controller */
 	hip08,
 };
 
+static int hisi_sas_v3_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+	struct sas_ha_struct *sha = pci_get_drvdata(pdev);
+	struct hisi_hba *hisi_hba = sha->lldd_ha;
+	struct device *dev = hisi_hba->dev;
+	struct Scsi_Host *shost = hisi_hba->shost;
+	u32 device_state, status;
+	int rc;
+	u32 reg_val;
+	unsigned long flags;
+
+	if (!pdev->pm_cap) {
+		dev_err(dev, "PCI PM not supported\n");
+		return -ENODEV;
+	}
+
+	set_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags);
+	scsi_block_requests(shost);
+	set_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags);
+	flush_workqueue(hisi_hba->wq);
+	/* disable DQ/PHY/bus */
+	interrupt_disable_v3_hw(hisi_hba);
+	hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0x0);
+	hisi_sas_kill_tasklets(hisi_hba);
+
+	hisi_sas_stop_phys(hisi_hba);
+
+	reg_val = hisi_sas_read32(hisi_hba, AXI_MASTER_CFG_BASE +
+		AM_CTRL_GLOBAL);
+	reg_val |= 0x1;
+	hisi_sas_write32(hisi_hba, AXI_MASTER_CFG_BASE +
+		AM_CTRL_GLOBAL, reg_val);
+
+	/* wait until bus idle */
+	rc = readl_poll_timeout(hisi_hba->regs + AXI_MASTER_CFG_BASE +
+		AM_CURR_TRANS_RETURN, status, status == 0x3, 10, 100);
+	if (rc) {
+		dev_err(dev, "axi bus is not idle, rc = %d\n", rc);
+		clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags);
+		clear_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags);
+		scsi_unblock_requests(shost);
+		return rc;
+	}
+
+	hisi_sas_init_mem(hisi_hba);
+
+	device_state = pci_choose_state(pdev, state);
+	dev_warn(dev, "entering operating state [D%d]\n",
+			device_state);
+	pci_save_state(pdev);
+	pci_disable_device(pdev);
+	pci_set_power_state(pdev, device_state);
+
+	spin_lock_irqsave(&hisi_hba->lock, flags);
+	hisi_sas_release_tasks(hisi_hba);
+	spin_unlock_irqrestore(&hisi_hba->lock, flags);
+
+	sas_suspend_ha(sha);
+	return 0;
+}
+
+static int hisi_sas_v3_resume(struct pci_dev *pdev)
+{
+	struct sas_ha_struct *sha = pci_get_drvdata(pdev);
+	struct hisi_hba *hisi_hba = sha->lldd_ha;
+	struct Scsi_Host *shost = hisi_hba->shost;
+	struct device *dev = hisi_hba->dev;
+	unsigned int rc;
+	u32 device_state = pdev->current_state;
+
+	dev_warn(dev, "resuming from operating state [D%d]\n",
+			device_state);
+	pci_set_power_state(pdev, PCI_D0);
+	pci_enable_wake(pdev, PCI_D0, 0);
+	pci_restore_state(pdev);
+	rc = pci_enable_device(pdev);
+	if (rc)
+		dev_err(dev, "enable device failed during resume (%d)\n", rc);
+
+	pci_set_master(pdev);
+	scsi_unblock_requests(shost);
+	clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags);
+
+	sas_prep_resume_ha(sha);
+	init_reg_v3_hw(hisi_hba);
+	hisi_hba->hw->phys_init(hisi_hba);
+	sas_resume_ha(sha);
+	clear_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags);
+
+	return 0;
+}
+
 static const struct pci_device_id sas_v3_pci_table[] = {
 	{ PCI_VDEVICE(HUAWEI, 0xa230), hip08 },
 	{}
 };
 
+static const struct pci_error_handlers hisi_sas_err_handler = {
+	.error_detected	= hisi_sas_error_detected_v3_hw,
+	.mmio_enabled	= hisi_sas_mmio_enabled_v3_hw,
+	.slot_reset	= hisi_sas_slot_reset_v3_hw,
+};
+
 static struct pci_driver sas_v3_pci_driver = {
 	.name		= DRV_NAME,
 	.id_table	= sas_v3_pci_table,
 	.probe		= hisi_sas_v3_probe,
 	.remove		= hisi_sas_v3_remove,
+	.suspend	= hisi_sas_v3_suspend,
+	.resume		= hisi_sas_v3_resume,
+	.err_handler	= &hisi_sas_err_handler,
 };
 
 module_pci_driver(sas_v3_pci_driver);
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index fe3a0da3ec97..57bf43e34863 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -318,6 +318,9 @@ static void scsi_host_dev_release(struct device *dev)
 
 	scsi_proc_hostdir_rm(shost->hostt);
 
+	/* Wait for functions invoked through call_rcu(&shost->rcu, ...) */
+	rcu_barrier();
+
 	if (shost->tmf_work_q)
 		destroy_workqueue(shost->tmf_work_q);
 	if (shost->ehandler)
@@ -325,6 +328,8 @@ static void scsi_host_dev_release(struct device *dev)
 	if (shost->work_q)
 		destroy_workqueue(shost->work_q);
 
+	destroy_rcu_head(&shost->rcu);
+
 	if (shost->shost_state == SHOST_CREATED) {
 		/*
 		 * Free the shost_dev device name here if scsi_host_alloc()
@@ -399,6 +404,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
 	INIT_LIST_HEAD(&shost->starved_list);
 	init_waitqueue_head(&shost->host_wait);
 	mutex_init(&shost->scan_mutex);
+	init_rcu_head(&shost->rcu);
 
 	index = ida_simple_get(&host_index_ida, 0, 0, GFP_KERNEL);
 	if (index < 0)
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 287e5eb0723f..87b260e403ec 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -3518,7 +3518,7 @@ out:
 
 	if (rc != IO_OK)
 		hpsa_show_dev_msg(KERN_INFO, h, encl_dev,
-			"Error, could not get enclosure information\n");
+			"Error, could not get enclosure information");
 }
 
 static u64 hpsa_get_sas_address_from_report_physical(struct ctlr_info *h,
@@ -4619,21 +4619,13 @@ sglist_finished:
 	return 0;
 }
 
-#define BUFLEN 128
 static inline void warn_zero_length_transfer(struct ctlr_info *h,
 						u8 *cdb, int cdb_len,
 						const char *func)
 {
-	char buf[BUFLEN];
-	int outlen;
-	int i;
-
-	outlen = scnprintf(buf, BUFLEN,
-				"%s: Blocking zero-length request: CDB:", func);
-	for (i = 0; i < cdb_len; i++)
-		outlen += scnprintf(buf+outlen, BUFLEN - outlen,
-					"%02hhx", cdb[i]);
-	dev_warn(&h->pdev->dev, "%s\n", buf);
+	dev_warn(&h->pdev->dev,
+		 "%s: Blocking zero-length request: CDB:%*phN\n",
+		 func, cdb_len, cdb);
 }
 
 #define IO_ACCEL_INELIGIBLE 1
@@ -8223,8 +8215,6 @@ static void hpsa_set_ioaccel_status(struct ctlr_info *h)
 
 		if (!device)
 			continue;
-		if (!device->scsi3addr)
-			continue;
 		if (!hpsa_vpd_page_supported(h, device->scsi3addr,
 						HPSA_VPD_LV_IOACCEL_STATUS))
 			continue;
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index 0d2f7eb3acb6..b1b1d3a3b173 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -181,7 +181,7 @@ static void ibmvfc_trc_start(struct ibmvfc_event *evt)
 		break;
 	default:
 		break;
-	};
+	}
 }
 
 /**
@@ -220,7 +220,7 @@ static void ibmvfc_trc_end(struct ibmvfc_event *evt)
 	default:
 		break;
 
-	};
+	}
 }
 
 #else
@@ -464,7 +464,7 @@ static int ibmvfc_set_host_state(struct ibmvfc_host *vhost,
 	default:
 		vhost->state = state;
 		break;
-	};
+	}
 
 	return rc;
 }
@@ -500,7 +500,7 @@ static void ibmvfc_set_host_action(struct ibmvfc_host *vhost,
 			break;
 		default:
 			break;
-		};
+		}
 		break;
 	case IBMVFC_HOST_ACTION_TGT_INIT:
 		if (vhost->action == IBMVFC_HOST_ACTION_ALLOC_TGTS)
@@ -515,7 +515,7 @@ static void ibmvfc_set_host_action(struct ibmvfc_host *vhost,
 		default:
 			vhost->action = action;
 			break;
-		};
+		}
 		break;
 	case IBMVFC_HOST_ACTION_LOGO:
 	case IBMVFC_HOST_ACTION_QUERY_TGTS:
@@ -526,7 +526,7 @@ static void ibmvfc_set_host_action(struct ibmvfc_host *vhost,
 	default:
 		vhost->action = action;
 		break;
-	};
+	}
 }
 
 /**
@@ -1601,7 +1601,7 @@ static inline int ibmvfc_host_chkready(struct ibmvfc_host *vhost)
 	case IBMVFC_ACTIVE:
 		result = 0;
 		break;
-	};
+	}
 
 	return result;
 }
@@ -1856,7 +1856,7 @@ static int ibmvfc_bsg_request(struct bsg_job *job)
 		break;
 	default:
 		return -ENOTSUPP;
-	};
+	}
 
 	if (port_id == -1)
 		return -EINVAL;
@@ -2661,7 +2661,7 @@ static void ibmvfc_handle_async(struct ibmvfc_async_crq *crq,
 			vhost->delay_init = 1;
 			__ibmvfc_reset_host(vhost);
 			break;
-		};
+		}
 
 		break;
 	case IBMVFC_AE_LINK_UP:
@@ -2715,7 +2715,7 @@ static void ibmvfc_handle_async(struct ibmvfc_async_crq *crq,
 	default:
 		dev_err(vhost->dev, "Unknown async event received: %lld\n", crq->event);
 		break;
-	};
+	}
 }
 
 /**
@@ -3351,7 +3351,7 @@ static void ibmvfc_tgt_prli_done(struct ibmvfc_event *evt)
 			ibmvfc_get_cmd_error(be16_to_cpu(rsp->status), be16_to_cpu(rsp->error)),
 			rsp->status, rsp->error, status);
 		break;
-	};
+	}
 
 	kref_put(&tgt->kref, ibmvfc_release_tgt);
 	ibmvfc_free_event(evt);
@@ -3451,7 +3451,7 @@ static void ibmvfc_tgt_plogi_done(struct ibmvfc_event *evt)
 			ibmvfc_get_fc_type(be16_to_cpu(rsp->fc_type)), rsp->fc_type,
 			ibmvfc_get_ls_explain(be16_to_cpu(rsp->fc_explain)), rsp->fc_explain, status);
 		break;
-	};
+	}
 
 	kref_put(&tgt->kref, ibmvfc_release_tgt);
 	ibmvfc_free_event(evt);
@@ -3522,7 +3522,7 @@ static void ibmvfc_tgt_implicit_logout_done(struct ibmvfc_event *evt)
 	default:
 		tgt_err(tgt, "Implicit Logout failed: rc=0x%02X\n", status);
 		break;
-	};
+	}
 
 	if (vhost->action == IBMVFC_HOST_ACTION_TGT_INIT)
 		ibmvfc_init_tgt(tgt, ibmvfc_tgt_send_plogi);
@@ -3626,7 +3626,7 @@ static void ibmvfc_tgt_adisc_done(struct ibmvfc_event *evt)
 			 ibmvfc_get_fc_type(fc_reason), fc_reason,
 			 ibmvfc_get_ls_explain(fc_explain), fc_explain, status);
 		break;
-	};
+	}
 
 	kref_put(&tgt->kref, ibmvfc_release_tgt);
 	ibmvfc_free_event(evt);
@@ -3838,7 +3838,7 @@ static void ibmvfc_tgt_query_target_done(struct ibmvfc_event *evt)
 			rsp->fc_type, ibmvfc_get_gs_explain(be16_to_cpu(rsp->fc_explain)),
 			rsp->fc_explain, status);
 		break;
-	};
+	}
 
 	kref_put(&tgt->kref, ibmvfc_release_tgt);
 	ibmvfc_free_event(evt);
@@ -4236,7 +4236,7 @@ static int __ibmvfc_work_to_do(struct ibmvfc_host *vhost)
 	case IBMVFC_HOST_ACTION_REENABLE:
 	default:
 		break;
-	};
+	}
 
 	return 1;
 }
@@ -4464,7 +4464,7 @@ static void ibmvfc_do_work(struct ibmvfc_host *vhost)
 		break;
 	default:
 		break;
-	};
+	}
 
 	spin_unlock_irqrestore(vhost->host->host_lock, flags);
 }
diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
index 2799a6b08f73..c3a76af9f5fa 100644
--- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
+++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
@@ -122,7 +122,7 @@ static bool connection_broken(struct scsi_info *vscsi)
 				   cpu_to_be64(buffer[MSG_HI]),
 				   cpu_to_be64(buffer[MSG_LOW]));
 
-	pr_debug("connection_broken: rc %ld\n", h_return_code);
+	dev_dbg(&vscsi->dev, "Connection_broken: rc %ld\n", h_return_code);
 
 	if (h_return_code == H_CLOSED)
 		rc = true;
@@ -210,7 +210,7 @@ static long ibmvscsis_unregister_command_q(struct scsi_info *vscsi)
 		}
 	} while (qrc != H_SUCCESS && rc == ADAPT_SUCCESS);
 
-	pr_debug("Freeing CRQ: phyp rc %ld, rc %ld\n", qrc, rc);
+	dev_dbg(&vscsi->dev, "Freeing CRQ: phyp rc %ld, rc %ld\n", qrc, rc);
 
 	return rc;
 }
@@ -291,9 +291,9 @@ static long ibmvscsis_free_command_q(struct scsi_info *vscsi)
 			ibmvscsis_delete_client_info(vscsi, false);
 		}
 
-		pr_debug("free_command_q: flags 0x%x, state 0x%hx, acr_flags 0x%x, acr_state 0x%hx\n",
-			 vscsi->flags, vscsi->state, vscsi->phyp_acr_flags,
-			 vscsi->phyp_acr_state);
+		dev_dbg(&vscsi->dev, "free_command_q: flags 0x%x, state 0x%hx, acr_flags 0x%x, acr_state 0x%hx\n",
+			vscsi->flags, vscsi->state, vscsi->phyp_acr_flags,
+			vscsi->phyp_acr_state);
 	}
 	return rc;
 }
@@ -428,8 +428,8 @@ static void ibmvscsis_disconnect(struct work_struct *work)
 	vscsi->flags |= DISCONNECT_SCHEDULED;
 	vscsi->flags &= ~SCHEDULE_DISCONNECT;
 
-	pr_debug("disconnect: flags 0x%x, state 0x%hx\n", vscsi->flags,
-		 vscsi->state);
+	dev_dbg(&vscsi->dev, "disconnect: flags 0x%x, state 0x%hx\n",
+		vscsi->flags, vscsi->state);
 
 	/*
 	 * check which state we are in and see if we
@@ -540,13 +540,14 @@ static void ibmvscsis_disconnect(struct work_struct *work)
 	}
 
 	if (wait_idle) {
-		pr_debug("disconnect start wait, active %d, sched %d\n",
-			 (int)list_empty(&vscsi->active_q),
-			 (int)list_empty(&vscsi->schedule_q));
+		dev_dbg(&vscsi->dev, "disconnect start wait, active %d, sched %d\n",
+			(int)list_empty(&vscsi->active_q),
+			(int)list_empty(&vscsi->schedule_q));
 		if (!list_empty(&vscsi->active_q) ||
 		    !list_empty(&vscsi->schedule_q)) {
 			vscsi->flags |= WAIT_FOR_IDLE;
-			pr_debug("disconnect flags 0x%x\n", vscsi->flags);
+			dev_dbg(&vscsi->dev, "disconnect flags 0x%x\n",
+				vscsi->flags);
 			/*
 			 * This routine is can not be called with the interrupt
 			 * lock held.
@@ -555,7 +556,7 @@ static void ibmvscsis_disconnect(struct work_struct *work)
 			wait_for_completion(&vscsi->wait_idle);
 			spin_lock_bh(&vscsi->intr_lock);
 		}
-		pr_debug("disconnect stop wait\n");
+		dev_dbg(&vscsi->dev, "disconnect stop wait\n");
 
 		ibmvscsis_adapter_idle(vscsi);
 	}
@@ -597,8 +598,8 @@ static void ibmvscsis_post_disconnect(struct scsi_info *vscsi, uint new_state,
 
 	vscsi->flags |= flag_bits;
 
-	pr_debug("post_disconnect: new_state 0x%x, flag_bits 0x%x, vscsi->flags 0x%x, state %hx\n",
-		 new_state, flag_bits, vscsi->flags, vscsi->state);
+	dev_dbg(&vscsi->dev, "post_disconnect: new_state 0x%x, flag_bits 0x%x, vscsi->flags 0x%x, state %hx\n",
+		new_state, flag_bits, vscsi->flags, vscsi->state);
 
 	if (!(vscsi->flags & (DISCONNECT_SCHEDULED | SCHEDULE_DISCONNECT))) {
 		vscsi->flags |= SCHEDULE_DISCONNECT;
@@ -648,8 +649,8 @@ static void ibmvscsis_post_disconnect(struct scsi_info *vscsi, uint new_state,
 		}
 	}
 
-	pr_debug("Leaving post_disconnect: flags 0x%x, new_state 0x%x\n",
-		 vscsi->flags, vscsi->new_state);
+	dev_dbg(&vscsi->dev, "Leaving post_disconnect: flags 0x%x, new_state 0x%x\n",
+		vscsi->flags, vscsi->new_state);
 }
 
 /**
@@ -724,7 +725,8 @@ static long ibmvscsis_handle_init_msg(struct scsi_info *vscsi)
 			break;
 
 		case H_CLOSED:
-			pr_warn("init_msg: failed to send, rc %ld\n", rc);
+			dev_warn(&vscsi->dev, "init_msg: failed to send, rc %ld\n",
+				 rc);
 			rc = 0;
 			break;
 		}
@@ -768,7 +770,7 @@ static long ibmvscsis_init_msg(struct scsi_info *vscsi, struct viosrp_crq *crq)
 {
 	long rc = ADAPT_SUCCESS;
 
-	pr_debug("init_msg: state 0x%hx\n", vscsi->state);
+	dev_dbg(&vscsi->dev, "init_msg: state 0x%hx\n", vscsi->state);
 
 	rc = h_vioctl(vscsi->dds.unit_id, H_GET_PARTNER_INFO,
 		      (u64)vscsi->map_ioba | ((u64)PAGE_SIZE << 32), 0, 0, 0,
@@ -776,10 +778,10 @@ static long ibmvscsis_init_msg(struct scsi_info *vscsi, struct viosrp_crq *crq)
 	if (rc == H_SUCCESS) {
 		vscsi->client_data.partition_number =
 			be64_to_cpu(*(u64 *)vscsi->map_buf);
-		pr_debug("init_msg, part num %d\n",
-			 vscsi->client_data.partition_number);
+		dev_dbg(&vscsi->dev, "init_msg, part num %d\n",
+			vscsi->client_data.partition_number);
 	} else {
-		pr_debug("init_msg h_vioctl rc %ld\n", rc);
+		dev_dbg(&vscsi->dev, "init_msg h_vioctl rc %ld\n", rc);
 		rc = ADAPT_SUCCESS;
 	}
 
@@ -813,7 +815,8 @@ static long ibmvscsis_establish_new_q(struct scsi_info *vscsi)
 	if (rc == H_SUCCESS)
 		vscsi->flags |= PREP_FOR_SUSPEND_ENABLED;
 	else if (rc != H_NOT_FOUND)
-		pr_err("Error from Enable Prepare for Suspend: %ld\n", rc);
+		dev_err(&vscsi->dev, "Error from Enable Prepare for Suspend: %ld\n",
+			rc);
 
 	vscsi->flags &= PRESERVE_FLAG_FIELDS;
 	vscsi->rsp_q_timer.timer_pops = 0;
@@ -822,8 +825,8 @@ static long ibmvscsis_establish_new_q(struct scsi_info *vscsi)
 
 	rc = vio_enable_interrupts(vscsi->dma_dev);
 	if (rc) {
-		pr_warn("establish_new_q: failed to enable interrupts, rc %ld\n",
-			rc);
+		dev_warn(&vscsi->dev, "establish_new_q: failed to enable interrupts, rc %ld\n",
+			 rc);
 		return rc;
 	}
 
@@ -883,7 +886,7 @@ static void ibmvscsis_reset_queue(struct scsi_info *vscsi)
 	int bytes;
 	long rc = ADAPT_SUCCESS;
 
-	pr_debug("reset_queue: flags 0x%x\n", vscsi->flags);
+	dev_dbg(&vscsi->dev, "reset_queue: flags 0x%x\n", vscsi->flags);
 
 	/* don't reset, the client did it for us */
 	if (vscsi->flags & (CLIENT_FAILED | TRANS_EVENT)) {
@@ -906,7 +909,8 @@ static void ibmvscsis_reset_queue(struct scsi_info *vscsi)
 			}
 
 			if (rc != ADAPT_SUCCESS) {
-				pr_debug("reset_queue: reg_crq rc %ld\n", rc);
+				dev_dbg(&vscsi->dev, "reset_queue: reg_crq rc %ld\n",
+					rc);
 
 				vscsi->state = ERR_DISCONNECTED;
 				vscsi->flags |= RESPONSE_Q_DOWN;
@@ -985,14 +989,15 @@ static long ibmvscsis_ready_for_suspend(struct scsi_info *vscsi, bool idle)
 	/* See if there is a Resume event in the queue */
 	crq = vscsi->cmd_q.base_addr + vscsi->cmd_q.index;
 
-	pr_debug("ready_suspend: flags 0x%x, state 0x%hx crq_valid:%x\n",
-		 vscsi->flags, vscsi->state, (int)crq->valid);
+	dev_dbg(&vscsi->dev, "ready_suspend: flags 0x%x, state 0x%hx crq_valid:%x\n",
+		vscsi->flags, vscsi->state, (int)crq->valid);
 
 	if (!(vscsi->flags & PREP_FOR_SUSPEND_ABORTED) && !(crq->valid)) {
 		rc = h_vioctl(vscsi->dds.unit_id, H_READY_FOR_SUSPEND, 0, 0, 0,
 			      0, 0);
 		if (rc) {
-			pr_err("Ready for Suspend Vioctl failed: %ld\n", rc);
+			dev_err(&vscsi->dev, "Ready for Suspend Vioctl failed: %ld\n",
+				rc);
 			rc = 0;
 		}
 	} else if (((vscsi->flags & PREP_FOR_SUSPEND_OVERWRITE) &&
@@ -1012,7 +1017,7 @@ static long ibmvscsis_ready_for_suspend(struct scsi_info *vscsi, bool idle)
 
 		if ((crq->valid) && ((crq->valid != VALID_TRANS_EVENT) ||
 				     (crq->format != RESUME_FROM_SUSP)))
-			pr_err("Invalid element in CRQ after Prepare for Suspend");
+			dev_err(&vscsi->dev, "Invalid element in CRQ after Prepare for Suspend");
 	}
 
 	vscsi->flags &= ~(PREP_FOR_SUSPEND_PENDING | PREP_FOR_SUSPEND_ABORTED);
@@ -1036,8 +1041,8 @@ static long ibmvscsis_trans_event(struct scsi_info *vscsi,
 {
 	long rc = ADAPT_SUCCESS;
 
-	pr_debug("trans_event: format %d, flags 0x%x, state 0x%hx\n",
-		 (int)crq->format, vscsi->flags, vscsi->state);
+	dev_dbg(&vscsi->dev, "trans_event: format %d, flags 0x%x, state 0x%hx\n",
+		(int)crq->format, vscsi->flags, vscsi->state);
 
 	switch (crq->format) {
 	case MIGRATED:
@@ -1073,14 +1078,14 @@ static long ibmvscsis_trans_event(struct scsi_info *vscsi,
 			    !list_empty(&vscsi->schedule_q) ||
 			    !list_empty(&vscsi->waiting_rsp) ||
 			    !list_empty(&vscsi->active_q)) {
-				pr_debug("debit %d, sched %d, wait %d, active %d\n",
-					 vscsi->debit,
-					 (int)list_empty(&vscsi->schedule_q),
-					 (int)list_empty(&vscsi->waiting_rsp),
-					 (int)list_empty(&vscsi->active_q));
-				pr_warn("connection lost with outstanding work\n");
+				dev_dbg(&vscsi->dev, "debit %d, sched %d, wait %d, active %d\n",
+					vscsi->debit,
+					(int)list_empty(&vscsi->schedule_q),
+					(int)list_empty(&vscsi->waiting_rsp),
+					(int)list_empty(&vscsi->active_q));
+				dev_warn(&vscsi->dev, "connection lost with outstanding work\n");
 			} else {
-				pr_debug("trans_event: SRP Processing, but no outstanding work\n");
+				dev_dbg(&vscsi->dev, "trans_event: SRP Processing, but no outstanding work\n");
 			}
 
 			ibmvscsis_post_disconnect(vscsi, WAIT_IDLE,
@@ -1097,8 +1102,8 @@ static long ibmvscsis_trans_event(struct scsi_info *vscsi,
 		break;
 
 	case PREPARE_FOR_SUSPEND:
-		pr_debug("Prep for Suspend, crq status = 0x%x\n",
-			 (int)crq->status);
+		dev_dbg(&vscsi->dev, "Prep for Suspend, crq status = 0x%x\n",
+			(int)crq->status);
 		switch (vscsi->state) {
 		case ERR_DISCONNECTED:
 		case WAIT_CONNECTION:
@@ -1119,15 +1124,15 @@ static long ibmvscsis_trans_event(struct scsi_info *vscsi,
 		case ERR_DISCONNECT:
 		case ERR_DISCONNECT_RECONNECT:
 		case WAIT_IDLE:
-			pr_err("Invalid state for Prepare for Suspend Trans Event: 0x%x\n",
-			       vscsi->state);
+			dev_err(&vscsi->dev, "Invalid state for Prepare for Suspend Trans Event: 0x%x\n",
+				vscsi->state);
 			break;
 		}
 		break;
 
 	case RESUME_FROM_SUSP:
-		pr_debug("Resume from Suspend, crq status = 0x%x\n",
-			 (int)crq->status);
+		dev_dbg(&vscsi->dev, "Resume from Suspend, crq status = 0x%x\n",
+			(int)crq->status);
 		if (vscsi->flags & PREP_FOR_SUSPEND_PENDING) {
 			vscsi->flags |= PREP_FOR_SUSPEND_ABORTED;
 		} else {
@@ -1152,8 +1157,8 @@ static long ibmvscsis_trans_event(struct scsi_info *vscsi,
 
 	rc = vscsi->flags & SCHEDULE_DISCONNECT;
 
-	pr_debug("Leaving trans_event: flags 0x%x, state 0x%hx, rc %ld\n",
-		 vscsi->flags, vscsi->state, rc);
+	dev_dbg(&vscsi->dev, "Leaving trans_event: flags 0x%x, state 0x%hx, rc %ld\n",
+		vscsi->flags, vscsi->state, rc);
 
 	return rc;
 }
@@ -1175,8 +1180,8 @@ static void ibmvscsis_poll_cmd_q(struct scsi_info *vscsi)
 	bool ack = true;
 	volatile u8 valid;
 
-	pr_debug("poll_cmd_q: flags 0x%x, state 0x%hx, q index %ud\n",
-		 vscsi->flags, vscsi->state, vscsi->cmd_q.index);
+	dev_dbg(&vscsi->dev, "poll_cmd_q: flags 0x%x, state 0x%hx, q index %ud\n",
+		vscsi->flags, vscsi->state, vscsi->cmd_q.index);
 
 	rc = vscsi->flags & SCHEDULE_DISCONNECT;
 	crq = vscsi->cmd_q.base_addr + vscsi->cmd_q.index;
@@ -1204,7 +1209,7 @@ poll_work:
 				 * if a tranport event has occurred leave
 				 * everything but transport events on the queue
 				 */
-				pr_debug("poll_cmd_q, ignoring\n");
+				dev_dbg(&vscsi->dev, "poll_cmd_q, ignoring\n");
 
 				/*
 				 * need to decrement the queue index so we can
@@ -1233,7 +1238,7 @@ poll_work:
 		if (ack) {
 			vio_enable_interrupts(vscsi->dma_dev);
 			ack = false;
-			pr_debug("poll_cmd_q, reenabling interrupts\n");
+			dev_dbg(&vscsi->dev, "poll_cmd_q, reenabling interrupts\n");
 		}
 		valid = crq->valid;
 		dma_rmb();
@@ -1241,7 +1246,7 @@ poll_work:
 			goto poll_work;
 	}
 
-	pr_debug("Leaving poll_cmd_q: rc %ld\n", rc);
+	dev_dbg(&vscsi->dev, "Leaving poll_cmd_q: rc %ld\n", rc);
 }
 
 /**
@@ -1258,9 +1263,9 @@ static void ibmvscsis_free_cmd_qs(struct scsi_info *vscsi)
 {
 	struct ibmvscsis_cmd *cmd, *nxt;
 
-	pr_debug("free_cmd_qs: waiting_rsp empty %d, timer starter %d\n",
-		 (int)list_empty(&vscsi->waiting_rsp),
-		 vscsi->rsp_q_timer.started);
+	dev_dbg(&vscsi->dev, "free_cmd_qs: waiting_rsp empty %d, timer starter %d\n",
+		(int)list_empty(&vscsi->waiting_rsp),
+		vscsi->rsp_q_timer.started);
 
 	list_for_each_entry_safe(cmd, nxt, &vscsi->waiting_rsp, list) {
 		list_del(&cmd->list);
@@ -1317,8 +1322,8 @@ static void ibmvscsis_adapter_idle(struct scsi_info *vscsi)
 	int free_qs = false;
 	long rc = 0;
 
-	pr_debug("adapter_idle: flags 0x%x, state 0x%hx\n", vscsi->flags,
-		 vscsi->state);
+	dev_dbg(&vscsi->dev, "adapter_idle: flags 0x%x, state 0x%hx\n",
+		vscsi->flags, vscsi->state);
 
 	/* Only need to free qs if we're disconnecting from client */
 	if (vscsi->state != WAIT_CONNECTION || vscsi->flags & TRANS_EVENT)
@@ -1336,7 +1341,8 @@ static void ibmvscsis_adapter_idle(struct scsi_info *vscsi)
 		break;
 	case ERR_DISCONNECT_RECONNECT:
 		ibmvscsis_reset_queue(vscsi);
-		pr_debug("adapter_idle, disc_rec: flags 0x%x\n", vscsi->flags);
+		dev_dbg(&vscsi->dev, "adapter_idle, disc_rec: flags 0x%x\n",
+			vscsi->flags);
 		break;
 
 	case ERR_DISCONNECT:
@@ -1347,8 +1353,8 @@ static void ibmvscsis_adapter_idle(struct scsi_info *vscsi)
 			vscsi->state = ERR_DISCONNECTED;
 		else
 			vscsi->state = WAIT_ENABLED;
-		pr_debug("adapter_idle, disc: flags 0x%x, state 0x%hx\n",
-			 vscsi->flags, vscsi->state);
+		dev_dbg(&vscsi->dev, "adapter_idle, disc: flags 0x%x, state 0x%hx\n",
+			vscsi->flags, vscsi->state);
 		break;
 
 	case WAIT_IDLE:
@@ -1370,15 +1376,15 @@ static void ibmvscsis_adapter_idle(struct scsi_info *vscsi)
 			vscsi->flags &= ~DISCONNECT_SCHEDULED;
 		}
 
-		pr_debug("adapter_idle, wait: flags 0x%x, state 0x%hx\n",
-			 vscsi->flags, vscsi->state);
+		dev_dbg(&vscsi->dev, "adapter_idle, wait: flags 0x%x, state 0x%hx\n",
+			vscsi->flags, vscsi->state);
 		ibmvscsis_poll_cmd_q(vscsi);
 		break;
 
 	case ERR_DISCONNECTED:
 		vscsi->flags &= ~DISCONNECT_SCHEDULED;
-		pr_debug("adapter_idle, disconnected: flags 0x%x, state 0x%hx\n",
-			 vscsi->flags, vscsi->state);
+		dev_dbg(&vscsi->dev, "adapter_idle, disconnected: flags 0x%x, state 0x%hx\n",
+			vscsi->flags, vscsi->state);
 		break;
 
 	default:
@@ -1419,13 +1425,13 @@ static void ibmvscsis_adapter_idle(struct scsi_info *vscsi)
 		vscsi->phyp_acr_state = 0;
 		vscsi->phyp_acr_flags = 0;
 
-		pr_debug("adapter_idle: flags 0x%x, state 0x%hx, acr_flags 0x%x, acr_state 0x%hx\n",
-			 vscsi->flags, vscsi->state, vscsi->phyp_acr_flags,
-			 vscsi->phyp_acr_state);
+		dev_dbg(&vscsi->dev, "adapter_idle: flags 0x%x, state 0x%hx, acr_flags 0x%x, acr_state 0x%hx\n",
+			vscsi->flags, vscsi->state, vscsi->phyp_acr_flags,
+			vscsi->phyp_acr_state);
 	}
 
-	pr_debug("Leaving adapter_idle: flags 0x%x, state 0x%hx, new_state 0x%x\n",
-		 vscsi->flags, vscsi->state, vscsi->new_state);
+	dev_dbg(&vscsi->dev, "Leaving adapter_idle: flags 0x%x, state 0x%hx, new_state 0x%x\n",
+		vscsi->flags, vscsi->state, vscsi->new_state);
 }
 
 /**
@@ -1464,8 +1470,8 @@ static long ibmvscsis_copy_crq_packet(struct scsi_info *vscsi,
 		cmd->init_time = mftb();
 		iue->remote_token = crq->IU_data_ptr;
 		iue->iu_len = len;
-		pr_debug("copy_crq: ioba 0x%llx, init_time 0x%llx\n",
-			 be64_to_cpu(crq->IU_data_ptr), cmd->init_time);
+		dev_dbg(&vscsi->dev, "copy_crq: ioba 0x%llx, init_time 0x%llx\n",
+			be64_to_cpu(crq->IU_data_ptr), cmd->init_time);
 		break;
 	case H_PERMISSION:
 		if (connection_broken(vscsi))
@@ -1536,10 +1542,10 @@ static long ibmvscsis_adapter_info(struct scsi_info *vscsi,
 			if (connection_broken(vscsi))
 				flag_bits = (RESPONSE_Q_DOWN | CLIENT_FAILED);
 		}
-		pr_warn("adapter_info: h_copy_rdma from client failed, rc %ld\n",
-			rc);
-		pr_debug("adapter_info: ioba 0x%llx, flags 0x%x, flag_bits 0x%x\n",
-			 be64_to_cpu(mad->buffer), vscsi->flags, flag_bits);
+		dev_warn(&vscsi->dev, "adapter_info: h_copy_rdma from client failed, rc %ld\n",
+			 rc);
+		dev_dbg(&vscsi->dev, "adapter_info: ioba 0x%llx, flags 0x%x, flag_bits 0x%x\n",
+			be64_to_cpu(mad->buffer), vscsi->flags, flag_bits);
 		ibmvscsis_post_disconnect(vscsi, ERR_DISCONNECT_RECONNECT,
 					  flag_bits);
 		goto free_dma;
@@ -1595,7 +1601,7 @@ static long ibmvscsis_adapter_info(struct scsi_info *vscsi,
 
 free_dma:
 	dma_free_coherent(&vscsi->dma_dev->dev, sizeof(*info), info, token);
-	pr_debug("Leaving adapter_info, rc %ld\n", rc);
+	dev_dbg(&vscsi->dev, "Leaving adapter_info, rc %ld\n", rc);
 
 	return rc;
 }
@@ -1629,7 +1635,7 @@ static int ibmvscsis_cap_mad(struct scsi_info *vscsi, struct iu_entry *iue)
 	 */
 	min_len = offsetof(struct capabilities, migration);
 	if ((olen < min_len) || (olen > PAGE_SIZE)) {
-		pr_warn("cap_mad: invalid len %d\n", olen);
+		dev_warn(&vscsi->dev, "cap_mad: invalid len %d\n", olen);
 		mad->common.status = cpu_to_be16(VIOSRP_MAD_FAILED);
 		return 0;
 	}
@@ -1654,9 +1660,9 @@ static int ibmvscsis_cap_mad(struct scsi_info *vscsi, struct iu_entry *iue)
 		common = (struct mad_capability_common *)&cap->migration;
 
 		while ((len > 0) && (status == VIOSRP_MAD_SUCCESS) && !rc) {
-			pr_debug("cap_mad: len left %hd, cap type %d, cap len %hd\n",
-				 len, be32_to_cpu(common->cap_type),
-				 be16_to_cpu(common->length));
+			dev_dbg(&vscsi->dev, "cap_mad: len left %hd, cap type %d, cap len %hd\n",
+				len, be32_to_cpu(common->cap_type),
+				be16_to_cpu(common->length));
 
 			cap_len = be16_to_cpu(common->length);
 			if (cap_len > len) {
@@ -1673,7 +1679,7 @@ static int ibmvscsis_cap_mad(struct scsi_info *vscsi, struct iu_entry *iue)
 
 			switch (common->cap_type) {
 			default:
-				pr_debug("cap_mad: unsupported capability\n");
+				dev_dbg(&vscsi->dev, "cap_mad: unsupported capability\n");
 				common->server_support = 0;
 				flag = cpu_to_be32((u32)CAP_LIST_SUPPORTED);
 				cap->flags &= ~flag;
@@ -1693,8 +1699,8 @@ static int ibmvscsis_cap_mad(struct scsi_info *vscsi, struct iu_entry *iue)
 				 be64_to_cpu(mad->buffer));
 
 		if (rc != H_SUCCESS) {
-			pr_debug("cap_mad: failed to copy to client, rc %ld\n",
-				 rc);
+			dev_dbg(&vscsi->dev, "cap_mad: failed to copy to client, rc %ld\n",
+				rc);
 
 			if (rc == H_PERMISSION) {
 				if (connection_broken(vscsi))
@@ -1702,8 +1708,8 @@ static int ibmvscsis_cap_mad(struct scsi_info *vscsi, struct iu_entry *iue)
 						     CLIENT_FAILED);
 			}
 
-			pr_warn("cap_mad: error copying data to client, rc %ld\n",
-				rc);
+			dev_warn(&vscsi->dev, "cap_mad: error copying data to client, rc %ld\n",
+				 rc);
 			ibmvscsis_post_disconnect(vscsi,
 						  ERR_DISCONNECT_RECONNECT,
 						  flag_bits);
@@ -1712,8 +1718,8 @@ static int ibmvscsis_cap_mad(struct scsi_info *vscsi, struct iu_entry *iue)
 
 	dma_free_coherent(&vscsi->dma_dev->dev, olen, cap, token);
 
-	pr_debug("Leaving cap_mad, rc %ld, client_cap 0x%x\n",
-		 rc, vscsi->client_cap);
+	dev_dbg(&vscsi->dev, "Leaving cap_mad, rc %ld, client_cap 0x%x\n",
+		rc, vscsi->client_cap);
 
 	return rc;
 }
@@ -1749,7 +1755,7 @@ static long ibmvscsis_process_mad(struct scsi_info *vscsi, struct iu_entry *iue)
 			vscsi->fast_fail = true;
 			mad->status = cpu_to_be16(VIOSRP_MAD_SUCCESS);
 		} else {
-			pr_warn("fast fail mad sent after login\n");
+			dev_warn(&vscsi->dev, "fast fail mad sent after login\n");
 			mad->status = cpu_to_be16(VIOSRP_MAD_FAILED);
 		}
 		break;
@@ -1809,9 +1815,9 @@ static void srp_snd_msg_failed(struct scsi_info *vscsi, long rc)
 	 */
 	if ((vscsi->rsp_q_timer.timer_pops < MAX_TIMER_POPS) ||
 	    (vscsi->state == SRP_PROCESSING)) {
-		pr_debug("snd_msg_failed: response queue full, flags 0x%x, timer started %d, pops %d\n",
-			 vscsi->flags, (int)vscsi->rsp_q_timer.started,
-			 vscsi->rsp_q_timer.timer_pops);
+		dev_dbg(&vscsi->dev, "snd_msg_failed: response queue full, flags 0x%x, timer started %d, pops %d\n",
+			vscsi->flags, (int)vscsi->rsp_q_timer.started,
+			vscsi->rsp_q_timer.timer_pops);
 
 		/*
 		 * Check if the timer is running; if it
@@ -1947,8 +1953,9 @@ static void ibmvscsis_send_messages(struct scsi_info *vscsi)
 							be64_to_cpu(msg_hi),
 							be64_to_cpu(cmd->rsp.tag));
 
-					pr_debug("send_messages: cmd %p, tag 0x%llx, rc %ld\n",
-						 cmd, be64_to_cpu(cmd->rsp.tag), rc);
+					dev_dbg(&vscsi->dev, "send_messages: cmd %p, tag 0x%llx, rc %ld\n",
+						cmd, be64_to_cpu(cmd->rsp.tag),
+						rc);
 
 					/* if all ok free up the command
 					 * element resources
@@ -2003,7 +2010,8 @@ static void ibmvscsis_send_mad_resp(struct scsi_info *vscsi,
 		list_add_tail(&cmd->list, &vscsi->waiting_rsp);
 		ibmvscsis_send_messages(vscsi);
 	} else {
-		pr_debug("Error sending mad response, rc %ld\n", rc);
+		dev_dbg(&vscsi->dev, "Error sending mad response, rc %ld\n",
+			rc);
 		if (rc == H_PERMISSION) {
 			if (connection_broken(vscsi))
 				flag_bits = (RESPONSE_Q_DOWN | CLIENT_FAILED);
@@ -2039,8 +2047,8 @@ static long ibmvscsis_mad(struct scsi_info *vscsi, struct viosrp_crq *crq)
 		 * expecting a response.
 		 */
 	case WAIT_CONNECTION:
-		pr_debug("mad: in Wait Connection state, ignoring MAD, flags %d\n",
-			 vscsi->flags);
+		dev_dbg(&vscsi->dev, "mad: in Wait Connection state, ignoring MAD, flags %d\n",
+			vscsi->flags);
 		return ADAPT_SUCCESS;
 
 	case SRP_PROCESSING:
@@ -2075,12 +2083,12 @@ static long ibmvscsis_mad(struct scsi_info *vscsi, struct viosrp_crq *crq)
 	if (!rc) {
 		mad = (struct mad_common *)&vio_iu(iue)->mad;
 
-		pr_debug("mad: type %d\n", be32_to_cpu(mad->type));
+		dev_dbg(&vscsi->dev, "mad: type %d\n", be32_to_cpu(mad->type));
 
 		rc = ibmvscsis_process_mad(vscsi, iue);
 
-		pr_debug("mad: status %hd, rc %ld\n", be16_to_cpu(mad->status),
-			 rc);
+		dev_dbg(&vscsi->dev, "mad: status %hd, rc %ld\n",
+			be16_to_cpu(mad->status), rc);
 
 		if (!rc)
 			ibmvscsis_send_mad_resp(vscsi, cmd, crq);
@@ -2088,7 +2096,7 @@ static long ibmvscsis_mad(struct scsi_info *vscsi, struct viosrp_crq *crq)
 		ibmvscsis_free_cmd_resources(vscsi, cmd);
 	}
 
-	pr_debug("Leaving mad, rc %ld\n", rc);
+	dev_dbg(&vscsi->dev, "Leaving mad, rc %ld\n", rc);
 	return rc;
 }
 
@@ -2211,16 +2219,17 @@ static int ibmvscsis_make_nexus(struct ibmvscsis_tport *tport)
 {
 	char *name = tport->tport_name;
 	struct ibmvscsis_nexus *nexus;
+	struct scsi_info *vscsi = container_of(tport, struct scsi_info, tport);
 	int rc;
 
 	if (tport->ibmv_nexus) {
-		pr_debug("tport->ibmv_nexus already exists\n");
+		dev_dbg(&vscsi->dev, "tport->ibmv_nexus already exists\n");
 		return 0;
 	}
 
 	nexus = kzalloc(sizeof(*nexus), GFP_KERNEL);
 	if (!nexus) {
-		pr_err("Unable to allocate struct ibmvscsis_nexus\n");
+		dev_err(&vscsi->dev, "Unable to allocate struct ibmvscsis_nexus\n");
 		return -ENOMEM;
 	}
 
@@ -2316,7 +2325,7 @@ static long ibmvscsis_srp_login(struct scsi_info *vscsi,
 	cmd->rsp.format = VIOSRP_SRP_FORMAT;
 	cmd->rsp.tag = req->tag;
 
-	pr_debug("srp_login: reason 0x%x\n", reason);
+	dev_dbg(&vscsi->dev, "srp_login: reason 0x%x\n", reason);
 
 	if (reason)
 		rc = ibmvscsis_srp_login_rej(vscsi, cmd, reason);
@@ -2333,7 +2342,7 @@ static long ibmvscsis_srp_login(struct scsi_info *vscsi,
 		ibmvscsis_free_cmd_resources(vscsi, cmd);
 	}
 
-	pr_debug("Leaving srp_login, rc %ld\n", rc);
+	dev_dbg(&vscsi->dev, "Leaving srp_login, rc %ld\n", rc);
 	return rc;
 }
 
@@ -2415,8 +2424,8 @@ static void ibmvscsis_srp_cmd(struct scsi_info *vscsi, struct viosrp_crq *crq)
 
 		case SRP_TSK_MGMT:
 			tsk = &vio_iu(iue)->srp.tsk_mgmt;
-			pr_debug("tsk_mgmt tag: %llu (0x%llx)\n", tsk->tag,
-				 tsk->tag);
+			dev_dbg(&vscsi->dev, "tsk_mgmt tag: %llu (0x%llx)\n",
+				tsk->tag, tsk->tag);
 			cmd->rsp.tag = tsk->tag;
 			vscsi->debit += 1;
 			cmd->type = TASK_MANAGEMENT;
@@ -2425,8 +2434,8 @@ static void ibmvscsis_srp_cmd(struct scsi_info *vscsi, struct viosrp_crq *crq)
 			break;
 
 		case SRP_CMD:
-			pr_debug("srp_cmd tag: %llu (0x%llx)\n", srp->tag,
-				 srp->tag);
+			dev_dbg(&vscsi->dev, "srp_cmd tag: %llu (0x%llx)\n",
+				srp->tag, srp->tag);
 			cmd->rsp.tag = srp->tag;
 			vscsi->debit += 1;
 			cmd->type = SCSI_CDB;
@@ -2603,7 +2612,7 @@ static int read_dma_window(struct scsi_info *vscsi)
 						       "ibm,my-dma-window",
 						       NULL);
 	if (!dma_window) {
-		pr_err("Couldn't find ibm,my-dma-window property\n");
+		dev_err(&vscsi->dev, "Couldn't find ibm,my-dma-window property\n");
 		return -1;
 	}
 
@@ -2613,7 +2622,7 @@ static int read_dma_window(struct scsi_info *vscsi)
 	prop = (const __be32 *)vio_get_attribute(vdev, "ibm,#dma-address-cells",
 						 NULL);
 	if (!prop) {
-		pr_warn("Couldn't find ibm,#dma-address-cells property\n");
+		dev_warn(&vscsi->dev, "Couldn't find ibm,#dma-address-cells property\n");
 		dma_window++;
 	} else {
 		dma_window += be32_to_cpu(*prop);
@@ -2622,7 +2631,7 @@ static int read_dma_window(struct scsi_info *vscsi)
 	prop = (const __be32 *)vio_get_attribute(vdev, "ibm,#dma-size-cells",
 						 NULL);
 	if (!prop) {
-		pr_warn("Couldn't find ibm,#dma-size-cells property\n");
+		dev_warn(&vscsi->dev, "Couldn't find ibm,#dma-size-cells property\n");
 		dma_window++;
 	} else {
 		dma_window += be32_to_cpu(*prop);
@@ -2808,8 +2817,8 @@ static void ibmvscsis_parse_task(struct scsi_info *vscsi,
 
 		srp_tsk->lun.scsi_lun[0] &= 0x3f;
 
-		pr_debug("calling submit_tmr, func %d\n",
-			 srp_tsk->tsk_mgmt_func);
+		dev_dbg(&vscsi->dev, "calling submit_tmr, func %d\n",
+			srp_tsk->tsk_mgmt_func);
 		rc = target_submit_tmr(&cmd->se_cmd, nexus->se_sess, NULL,
 				       scsilun_to_int(&srp_tsk->lun), srp_tsk,
 				       tcm_type, GFP_KERNEL, tag_to_abort, 0);
@@ -3113,8 +3122,8 @@ static long srp_build_response(struct scsi_info *vscsi,
 	if (cmd->type == SCSI_CDB) {
 		rsp->status = ibmvscsis_fast_fail(vscsi, cmd);
 		if (rsp->status) {
-			pr_debug("build_resp: cmd %p, scsi status %d\n", cmd,
-				 (int)rsp->status);
+			dev_dbg(&vscsi->dev, "build_resp: cmd %p, scsi status %d\n",
+				cmd, (int)rsp->status);
 			ibmvscsis_determine_resid(se_cmd, rsp);
 			if (se_cmd->scsi_sense_length && se_cmd->sense_buffer) {
 				rsp->sense_data_len =
@@ -3127,7 +3136,8 @@ static long srp_build_response(struct scsi_info *vscsi,
 			rsp->sol_not = (cmd->rsp.sol_not & UCSOLNT) >>
 				UCSOLNT_RESP_SHIFT;
 		} else if (cmd->flags & CMD_FAST_FAIL) {
-			pr_debug("build_resp: cmd %p, fast fail\n", cmd);
+			dev_dbg(&vscsi->dev, "build_resp: cmd %p, fast fail\n",
+				cmd);
 			rsp->sol_not = (cmd->rsp.sol_not & UCSOLNT) >>
 				UCSOLNT_RESP_SHIFT;
 		} else {
@@ -3340,7 +3350,7 @@ static void ibmvscsis_handle_crq(unsigned long data)
 
 	spin_lock_bh(&vscsi->intr_lock);
 
-	pr_debug("got interrupt\n");
+	dev_dbg(&vscsi->dev, "got interrupt\n");
 
 	/*
 	 * if we are in a path where we are waiting for all pending commands
@@ -3350,8 +3360,8 @@ static void ibmvscsis_handle_crq(unsigned long data)
 	if (TARGET_STOP(vscsi)) {
 		vio_enable_interrupts(vscsi->dma_dev);
 
-		pr_debug("handle_crq, don't process: flags 0x%x, state 0x%hx\n",
-			 vscsi->flags, vscsi->state);
+		dev_dbg(&vscsi->dev, "handle_crq, don't process: flags 0x%x, state 0x%hx\n",
+			vscsi->flags, vscsi->state);
 		spin_unlock_bh(&vscsi->intr_lock);
 		return;
 	}
@@ -3414,20 +3424,20 @@ cmd_work:
 		if (ack) {
 			vio_enable_interrupts(vscsi->dma_dev);
 			ack = false;
-			pr_debug("handle_crq, reenabling interrupts\n");
+			dev_dbg(&vscsi->dev, "handle_crq, reenabling interrupts\n");
 		}
 		valid = crq->valid;
 		dma_rmb();
 		if (valid)
 			goto cmd_work;
 	} else {
-		pr_debug("handle_crq, error: flags 0x%x, state 0x%hx, crq index 0x%x\n",
-			 vscsi->flags, vscsi->state, vscsi->cmd_q.index);
+		dev_dbg(&vscsi->dev, "handle_crq, error: flags 0x%x, state 0x%hx, crq index 0x%x\n",
+			vscsi->flags, vscsi->state, vscsi->cmd_q.index);
 	}
 
-	pr_debug("Leaving handle_crq: schedule_q empty %d, flags 0x%x, state 0x%hx\n",
-		 (int)list_empty(&vscsi->schedule_q), vscsi->flags,
-		 vscsi->state);
+	dev_dbg(&vscsi->dev, "Leaving handle_crq: schedule_q empty %d, flags 0x%x, state 0x%hx\n",
+		(int)list_empty(&vscsi->schedule_q), vscsi->flags,
+		vscsi->state);
 
 	spin_unlock_bh(&vscsi->intr_lock);
 }
@@ -3443,7 +3453,7 @@ static int ibmvscsis_probe(struct vio_dev *vdev,
 	vscsi = kzalloc(sizeof(*vscsi), GFP_KERNEL);
 	if (!vscsi) {
 		rc = -ENOMEM;
-		pr_err("probe: allocation of adapter failed\n");
+		dev_err(&vdev->dev, "probe: allocation of adapter failed\n");
 		return rc;
 	}
 
@@ -3456,14 +3466,14 @@ static int ibmvscsis_probe(struct vio_dev *vdev,
 	snprintf(vscsi->tport.tport_name, IBMVSCSIS_NAMELEN, "%s",
 		 dev_name(&vdev->dev));
 
-	pr_debug("probe tport_name: %s\n", vscsi->tport.tport_name);
+	dev_dbg(&vscsi->dev, "probe tport_name: %s\n", vscsi->tport.tport_name);
 
 	rc = read_dma_window(vscsi);
 	if (rc)
 		goto free_adapter;
-	pr_debug("Probe: liobn 0x%x, riobn 0x%x\n",
-		 vscsi->dds.window[LOCAL].liobn,
-		 vscsi->dds.window[REMOTE].liobn);
+	dev_dbg(&vscsi->dev, "Probe: liobn 0x%x, riobn 0x%x\n",
+		vscsi->dds.window[LOCAL].liobn,
+		vscsi->dds.window[REMOTE].liobn);
 
 	strcpy(vscsi->eye, "VSCSI ");
 	strncat(vscsi->eye, vdev->name, MAX_EYE);
@@ -3541,8 +3551,8 @@ static int ibmvscsis_probe(struct vio_dev *vdev,
 	 * client can connect" and the client isn't activated yet.
 	 * We'll make the call again when he sends an init msg.
 	 */
-	pr_debug("probe hrc %ld, client partition num %d\n",
-		 hrc, vscsi->client_data.partition_number);
+	dev_dbg(&vscsi->dev, "probe hrc %ld, client partition num %d\n",
+		hrc, vscsi->client_data.partition_number);
 
 	tasklet_init(&vscsi->work_task, ibmvscsis_handle_crq,
 		     (unsigned long)vscsi);
@@ -3602,7 +3612,7 @@ static int ibmvscsis_remove(struct vio_dev *vdev)
 {
 	struct scsi_info *vscsi = dev_get_drvdata(&vdev->dev);
 
-	pr_debug("remove (%s)\n", dev_name(&vscsi->dma_dev->dev));
+	dev_dbg(&vscsi->dev, "remove (%s)\n", dev_name(&vscsi->dma_dev->dev));
 
 	spin_lock_bh(&vscsi->intr_lock);
 	ibmvscsis_post_disconnect(vscsi, UNCONFIGURING, 0);
@@ -3766,14 +3776,16 @@ static int ibmvscsis_write_pending(struct se_cmd *se_cmd)
 	 * attempt an srp_transfer_data.
 	 */
 	if ((vscsi->flags & (CLIENT_FAILED | RESPONSE_Q_DOWN))) {
-		pr_err("write_pending failed since: %d\n", vscsi->flags);
+		dev_err(&vscsi->dev, "write_pending failed since: %d\n",
+			vscsi->flags);
 		return -EIO;
+
 	}
 
 	rc = srp_transfer_data(cmd, &vio_iu(iue)->srp.cmd, ibmvscsis_rdma,
 			       1, 1);
 	if (rc) {
-		pr_err("srp_transfer_data() failed: %d\n", rc);
+		dev_err(&vscsi->dev, "srp_transfer_data() failed: %d\n", rc);
 		return -EIO;
 	}
 	/*
@@ -3811,7 +3823,7 @@ static int ibmvscsis_queue_data_in(struct se_cmd *se_cmd)
 	rc = srp_transfer_data(cmd, &vio_iu(iue)->srp.cmd, ibmvscsis_rdma, 1,
 			       1);
 	if (rc) {
-		pr_err("srp_transfer_data failed: %d\n", rc);
+		dev_err(&vscsi->dev, "srp_transfer_data failed: %d\n", rc);
 		sd = se_cmd->sense_buffer;
 		se_cmd->scsi_sense_length = 18;
 		memset(se_cmd->sense_buffer, 0, se_cmd->scsi_sense_length);
@@ -3834,7 +3846,7 @@ static int ibmvscsis_queue_status(struct se_cmd *se_cmd)
 	struct scsi_info *vscsi = cmd->adapter;
 	uint len;
 
-	pr_debug("queue_status %p\n", se_cmd);
+	dev_dbg(&vscsi->dev, "queue_status %p\n", se_cmd);
 
 	srp_build_response(vscsi, cmd, &len);
 	cmd->rsp.format = SRP_FORMAT;
@@ -3854,8 +3866,8 @@ static void ibmvscsis_queue_tm_rsp(struct se_cmd *se_cmd)
 	u64 tag_to_abort = be64_to_cpu(srp_tsk->task_tag);
 	uint len;
 
-	pr_debug("queue_tm_rsp %p, status %d\n",
-		 se_cmd, (int)se_cmd->se_tmr_req->response);
+	dev_dbg(&vscsi->dev, "queue_tm_rsp %p, status %d\n",
+		se_cmd, (int)se_cmd->se_tmr_req->response);
 
 	if (srp_tsk->tsk_mgmt_func == SRP_TSK_ABORT_TASK &&
 	    cmd->se_cmd.se_tmr_req->response == TMR_TASK_DOES_NOT_EXIST) {
@@ -3877,8 +3889,12 @@ static void ibmvscsis_queue_tm_rsp(struct se_cmd *se_cmd)
 
 static void ibmvscsis_aborted_task(struct se_cmd *se_cmd)
 {
-	pr_debug("ibmvscsis_aborted_task %p task_tag: %llu\n",
-		 se_cmd, se_cmd->tag);
+	struct ibmvscsis_cmd *cmd = container_of(se_cmd, struct ibmvscsis_cmd,
+						 se_cmd);
+	struct scsi_info *vscsi = cmd->adapter;
+
+	dev_dbg(&vscsi->dev, "ibmvscsis_aborted_task %p task_tag: %llu\n",
+		se_cmd, se_cmd->tag);
 }
 
 static struct se_wwn *ibmvscsis_make_tport(struct target_fabric_configfs *tf,
@@ -3886,12 +3902,14 @@ static struct se_wwn *ibmvscsis_make_tport(struct target_fabric_configfs *tf,
 					   const char *name)
 {
 	struct ibmvscsis_tport *tport;
+	struct scsi_info *vscsi;
 
 	tport = ibmvscsis_lookup_port(name);
 	if (tport) {
+		vscsi = container_of(tport, struct scsi_info, tport);
 		tport->tport_proto_id = SCSI_PROTOCOL_SRP;
-		pr_debug("make_tport(%s), pointer:%p, tport_id:%x\n",
-			 name, tport, tport->tport_proto_id);
+		dev_dbg(&vscsi->dev, "make_tport(%s), pointer:%p, tport_id:%x\n",
+			name, tport, tport->tport_proto_id);
 		return &tport->tport_wwn;
 	}
 
@@ -3903,9 +3921,10 @@ static void ibmvscsis_drop_tport(struct se_wwn *wwn)
 	struct ibmvscsis_tport *tport = container_of(wwn,
 						     struct ibmvscsis_tport,
 						     tport_wwn);
+	struct scsi_info *vscsi = container_of(tport, struct scsi_info, tport);
 
-	pr_debug("drop_tport(%s)\n",
-		 config_item_name(&tport->tport_wwn.wwn_group.cg_item));
+	dev_dbg(&vscsi->dev, "drop_tport(%s)\n",
+		config_item_name(&tport->tport_wwn.wwn_group.cg_item));
 }
 
 static struct se_portal_group *ibmvscsis_make_tpg(struct se_wwn *wwn,
@@ -3990,12 +4009,12 @@ static ssize_t ibmvscsis_tpg_enable_store(struct config_item *item,
 
 	rc = kstrtoul(page, 0, &tmp);
 	if (rc < 0) {
-		pr_err("Unable to extract srpt_tpg_store_enable\n");
+		dev_err(&vscsi->dev, "Unable to extract srpt_tpg_store_enable\n");
 		return -EINVAL;
 	}
 
 	if ((tmp != 0) && (tmp != 1)) {
-		pr_err("Illegal value for srpt_tpg_store_enable\n");
+		dev_err(&vscsi->dev, "Illegal value for srpt_tpg_store_enable\n");
 		return -EINVAL;
 	}
 
@@ -4004,8 +4023,8 @@ static ssize_t ibmvscsis_tpg_enable_store(struct config_item *item,
 		tport->enabled = true;
 		lrc = ibmvscsis_enable_change_state(vscsi);
 		if (lrc)
-			pr_err("enable_change_state failed, rc %ld state %d\n",
-			       lrc, vscsi->state);
+			dev_err(&vscsi->dev, "enable_change_state failed, rc %ld state %d\n",
+				lrc, vscsi->state);
 		spin_unlock_bh(&vscsi->intr_lock);
 	} else {
 		spin_lock_bh(&vscsi->intr_lock);
@@ -4015,7 +4034,8 @@ static ssize_t ibmvscsis_tpg_enable_store(struct config_item *item,
 		spin_unlock_bh(&vscsi->intr_lock);
 	}
 
-	pr_debug("tpg_enable_store, tmp %ld, state %d\n", tmp, vscsi->state);
+	dev_dbg(&vscsi->dev, "tpg_enable_store, tmp %ld, state %d\n", tmp,
+		vscsi->state);
 
 	return count;
 }
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index cc0187965eee..e07dd990e585 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -9653,8 +9653,8 @@ static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
 			if (i == 0) {
 				entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS;
 				ioa_cfg->hrrq[i].min_cmd_id = 0;
-					ioa_cfg->hrrq[i].max_cmd_id =
-						(entries_each_hrrq - 1);
+				ioa_cfg->hrrq[i].max_cmd_id =
+					(entries_each_hrrq - 1);
 			} else {
 				entries_each_hrrq =
 					IPR_NUM_BASE_CMD_BLKS/
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 4d934d6c3e13..6198559abbd8 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -307,6 +307,7 @@ static int iscsi_sw_tcp_xmit_segment(struct iscsi_tcp_conn *tcp_conn,
 
 /**
  * iscsi_sw_tcp_xmit - TCP transmit
+ * @conn: iscsi connection
  **/
 static int iscsi_sw_tcp_xmit(struct iscsi_conn *conn)
 {
@@ -357,6 +358,7 @@ error:
 
 /**
  * iscsi_tcp_xmit_qlen - return the number of bytes queued for xmit
+ * @conn: iscsi connection
  */
 static inline int iscsi_sw_tcp_xmit_qlen(struct iscsi_conn *conn)
 {
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 9c50d2d9f27c..15a2fef51e38 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -1696,6 +1696,15 @@ int iscsi_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc)
 		 */
 		switch (session->state) {
 		case ISCSI_STATE_FAILED:
+			/*
+			 * cmds should fail during shutdown, if the session
+			 * state is bad, allowing completion to happen
+			 */
+			if (unlikely(system_state != SYSTEM_RUNNING)) {
+				reason = FAILURE_SESSION_FAILED;
+				sc->result = DID_NO_CONNECT << 16;
+				break;
+			}
 		case ISCSI_STATE_IN_RECOVERY:
 			reason = FAILURE_SESSION_IN_RECOVERY;
 			sc->result = DID_IMM_RETRY << 16;
@@ -1979,6 +1988,19 @@ enum blk_eh_timer_return iscsi_eh_cmd_timed_out(struct scsi_cmnd *sc)
 
 	if (session->state != ISCSI_STATE_LOGGED_IN) {
 		/*
+		 * During shutdown, if session is prematurely disconnected,
+		 * recovery won't happen and there will be hung cmds. Not
+		 * handling cmds would trigger EH, also bad in this case.
+		 * Instead, handle cmd, allow completion to happen and let
+		 * upper layer to deal with the result.
+		 */
+		if (unlikely(system_state != SYSTEM_RUNNING)) {
+			sc->result = DID_NO_CONNECT << 16;
+			ISCSI_DBG_EH(session, "sc on shutdown, handled\n");
+			rc = BLK_EH_HANDLED;
+			goto done;
+		}
+		/*
 		 * We are probably in the middle of iscsi recovery so let
 		 * that complete and handle the error.
 		 */
@@ -2082,7 +2104,7 @@ done:
 		task->last_timeout = jiffies;
 	spin_unlock(&session->frwd_lock);
 	ISCSI_DBG_EH(session, "return %s\n", rc == BLK_EH_RESET_TIMER ?
-		     "timer reset" : "nh");
+		     "timer reset" : "shutdown or nh");
 	return rc;
 }
 EXPORT_SYMBOL_GPL(iscsi_eh_cmd_timed_out);
@@ -2722,8 +2744,10 @@ static void iscsi_host_dec_session_cnt(struct Scsi_Host *shost)
  * @iscsit: iscsi transport template
  * @shost: scsi host
  * @cmds_max: session can queue
+ * @dd_size: private driver data size, added to session allocation size
  * @cmd_task_size: LLD task private data size
  * @initial_cmdsn: initial CmdSN
+ * @id: target ID to add to this session
  *
  * This can be used by software iscsi_transports that allocate
  * a session per scsi host.
@@ -2951,7 +2975,7 @@ EXPORT_SYMBOL_GPL(iscsi_conn_setup);
 
 /**
  * iscsi_conn_teardown - teardown iscsi connection
- * cls_conn: iscsi class connection
+ * @cls_conn: iscsi class connection
  *
  * TODO: we may need to make this into a two step process
  * like scsi-mls remove + put host
diff --git a/drivers/scsi/libiscsi_tcp.c b/drivers/scsi/libiscsi_tcp.c
index 63a1d69ff515..369ef8f23b24 100644
--- a/drivers/scsi/libiscsi_tcp.c
+++ b/drivers/scsi/libiscsi_tcp.c
@@ -798,6 +798,8 @@ iscsi_tcp_hdr_dissect(struct iscsi_conn *conn, struct iscsi_hdr *hdr)
 
 /**
  * iscsi_tcp_hdr_recv_done - process PDU header
+ * @tcp_conn: iSCSI TCP connection
+ * @segment: the buffer segment being processed
  *
  * This is the callback invoked when the PDU header has
  * been received. If the header is followed by additional
@@ -876,9 +878,10 @@ EXPORT_SYMBOL_GPL(iscsi_tcp_recv_segment_is_hdr);
  * @conn: iscsi connection
  * @skb: network buffer with header and/or data segment
  * @offset: offset in skb
- * @offload: bool indicating if transfer was offloaded
+ * @offloaded: bool indicating if transfer was offloaded
+ * @status: iscsi TCP status result
  *
- * Will return status of transfer in status. And will return
+ * Will return status of transfer in @status. And will return
  * number of bytes copied.
  */
 int iscsi_tcp_recv_skb(struct iscsi_conn *conn, struct sk_buff *skb,
@@ -955,9 +958,7 @@ EXPORT_SYMBOL_GPL(iscsi_tcp_recv_skb);
 
 /**
  * iscsi_tcp_task_init - Initialize iSCSI SCSI_READ or SCSI_WRITE commands
- * @conn: iscsi connection
  * @task: scsi command task
- * @sc: scsi command
  */
 int iscsi_tcp_task_init(struct iscsi_task *task)
 {
diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index 70be4425ae0b..2b3637b40dde 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -730,7 +730,6 @@ int sas_discover_sata(struct domain_device *dev)
 	if (res)
 		return res;
 
-	sas_discover_event(dev->port, DISCE_PROBE);
 	return 0;
 }
 
diff --git a/drivers/scsi/libsas/sas_discover.c b/drivers/scsi/libsas/sas_discover.c
index 60de66252fa2..e4fd078e4175 100644
--- a/drivers/scsi/libsas/sas_discover.c
+++ b/drivers/scsi/libsas/sas_discover.c
@@ -212,13 +212,9 @@ void sas_notify_lldd_dev_gone(struct domain_device *dev)
 	}
 }
 
-static void sas_probe_devices(struct work_struct *work)
+static void sas_probe_devices(struct asd_sas_port *port)
 {
 	struct domain_device *dev, *n;
-	struct sas_discovery_event *ev = to_sas_discovery_event(work);
-	struct asd_sas_port *port = ev->port;
-
-	clear_bit(DISCE_PROBE, &port->disc.pending);
 
 	/* devices must be domain members before link recovery and probe */
 	list_for_each_entry(dev, &port->disco_list, disco_list_node) {
@@ -294,7 +290,6 @@ int sas_discover_end_dev(struct domain_device *dev)
 	res = sas_notify_lldd_dev_found(dev);
 	if (res)
 		return res;
-	sas_discover_event(dev->port, DISCE_PROBE);
 
 	return 0;
 }
@@ -353,13 +348,9 @@ static void sas_unregister_common_dev(struct asd_sas_port *port, struct domain_d
 	sas_put_device(dev);
 }
 
-static void sas_destruct_devices(struct work_struct *work)
+void sas_destruct_devices(struct asd_sas_port *port)
 {
 	struct domain_device *dev, *n;
-	struct sas_discovery_event *ev = to_sas_discovery_event(work);
-	struct asd_sas_port *port = ev->port;
-
-	clear_bit(DISCE_DESTRUCT, &port->disc.pending);
 
 	list_for_each_entry_safe(dev, n, &port->destroy_list, disco_list_node) {
 		list_del_init(&dev->disco_list_node);
@@ -370,6 +361,16 @@ static void sas_destruct_devices(struct work_struct *work)
 	}
 }
 
+static void sas_destruct_ports(struct asd_sas_port *port)
+{
+	struct sas_port *sas_port, *p;
+
+	list_for_each_entry_safe(sas_port, p, &port->sas_port_del_list, del_list) {
+		list_del_init(&sas_port->del_list);
+		sas_port_delete(sas_port);
+	}
+}
+
 void sas_unregister_dev(struct asd_sas_port *port, struct domain_device *dev)
 {
 	if (!test_bit(SAS_DEV_DESTROY, &dev->state) &&
@@ -384,7 +385,6 @@ void sas_unregister_dev(struct asd_sas_port *port, struct domain_device *dev)
 	if (!test_and_set_bit(SAS_DEV_DESTROY, &dev->state)) {
 		sas_rphy_unlink(dev->rphy);
 		list_move_tail(&dev->disco_list_node, &port->destroy_list);
-		sas_discover_event(dev->port, DISCE_DESTRUCT);
 	}
 }
 
@@ -490,6 +490,8 @@ static void sas_discover_domain(struct work_struct *work)
 		port->port_dev = NULL;
 	}
 
+	sas_probe_devices(port);
+
 	SAS_DPRINTK("DONE DISCOVERY on port %d, pid:%d, result:%d\n", port->id,
 		    task_pid_nr(current), error);
 }
@@ -523,6 +525,10 @@ static void sas_revalidate_domain(struct work_struct *work)
 		    port->id, task_pid_nr(current), res);
  out:
 	mutex_unlock(&ha->disco_mutex);
+
+	sas_destruct_devices(port);
+	sas_destruct_ports(port);
+	sas_probe_devices(port);
 }
 
 /* ---------- Events ---------- */
@@ -534,7 +540,7 @@ static void sas_chain_work(struct sas_ha_struct *ha, struct sas_work *sw)
 	 * workqueue, or known to be submitted from a context that is
 	 * not racing against draining
 	 */
-	scsi_queue_work(ha->core.shost, &sw->work);
+	queue_work(ha->disco_q, &sw->work);
 }
 
 static void sas_chain_event(int event, unsigned long *pending,
@@ -578,10 +584,8 @@ void sas_init_disc(struct sas_discovery *disc, struct asd_sas_port *port)
 	static const work_func_t sas_event_fns[DISC_NUM_EVENTS] = {
 		[DISCE_DISCOVER_DOMAIN] = sas_discover_domain,
 		[DISCE_REVALIDATE_DOMAIN] = sas_revalidate_domain,
-		[DISCE_PROBE] = sas_probe_devices,
 		[DISCE_SUSPEND] = sas_suspend_devices,
 		[DISCE_RESUME] = sas_resume_devices,
-		[DISCE_DESTRUCT] = sas_destruct_devices,
 	};
 
 	disc->pending = 0;
diff --git a/drivers/scsi/libsas/sas_event.c b/drivers/scsi/libsas/sas_event.c
index 0bb9eefc08c8..ae923eb6de95 100644
--- a/drivers/scsi/libsas/sas_event.c
+++ b/drivers/scsi/libsas/sas_event.c
@@ -29,7 +29,8 @@
 
 int sas_queue_work(struct sas_ha_struct *ha, struct sas_work *sw)
 {
-	int rc = 0;
+	/* it's added to the defer_q when draining so return succeed */
+	int rc = 1;
 
 	if (!test_bit(SAS_HA_REGISTERED, &ha->state))
 		return 0;
@@ -39,24 +40,20 @@ int sas_queue_work(struct sas_ha_struct *ha, struct sas_work *sw)
 		if (list_empty(&sw->drain_node))
 			list_add_tail(&sw->drain_node, &ha->defer_q);
 	} else
-		rc = scsi_queue_work(ha->core.shost, &sw->work);
+		rc = queue_work(ha->event_q, &sw->work);
 
 	return rc;
 }
 
-static int sas_queue_event(int event, unsigned long *pending,
-			    struct sas_work *work,
+static int sas_queue_event(int event, struct sas_work *work,
 			    struct sas_ha_struct *ha)
 {
-	int rc = 0;
+	unsigned long flags;
+	int rc;
 
-	if (!test_and_set_bit(event, pending)) {
-		unsigned long flags;
-
-		spin_lock_irqsave(&ha->lock, flags);
-		rc = sas_queue_work(ha, work);
-		spin_unlock_irqrestore(&ha->lock, flags);
-	}
+	spin_lock_irqsave(&ha->lock, flags);
+	rc = sas_queue_work(ha, work);
+	spin_unlock_irqrestore(&ha->lock, flags);
 
 	return rc;
 }
@@ -64,21 +61,25 @@ static int sas_queue_event(int event, unsigned long *pending,
 
 void __sas_drain_work(struct sas_ha_struct *ha)
 {
-	struct workqueue_struct *wq = ha->core.shost->work_q;
 	struct sas_work *sw, *_sw;
+	int ret;
 
 	set_bit(SAS_HA_DRAINING, &ha->state);
 	/* flush submitters */
 	spin_lock_irq(&ha->lock);
 	spin_unlock_irq(&ha->lock);
 
-	drain_workqueue(wq);
+	drain_workqueue(ha->event_q);
+	drain_workqueue(ha->disco_q);
 
 	spin_lock_irq(&ha->lock);
 	clear_bit(SAS_HA_DRAINING, &ha->state);
 	list_for_each_entry_safe(sw, _sw, &ha->defer_q, drain_node) {
 		list_del_init(&sw->drain_node);
-		sas_queue_work(ha, sw);
+		ret = sas_queue_work(ha, sw);
+		if (ret != 1)
+			sas_free_event(to_asd_sas_event(&sw->work));
+
 	}
 	spin_unlock_irq(&ha->lock);
 }
@@ -115,33 +116,78 @@ void sas_enable_revalidation(struct sas_ha_struct *ha)
 		struct asd_sas_port *port = ha->sas_port[i];
 		const int ev = DISCE_REVALIDATE_DOMAIN;
 		struct sas_discovery *d = &port->disc;
+		struct asd_sas_phy *sas_phy;
 
 		if (!test_and_clear_bit(ev, &d->pending))
 			continue;
 
-		sas_queue_event(ev, &d->pending, &d->disc_work[ev].work, ha);
+		if (list_empty(&port->phy_list))
+			continue;
+
+		sas_phy = container_of(port->phy_list.next, struct asd_sas_phy,
+				port_phy_el);
+		ha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
 	}
 	mutex_unlock(&ha->disco_mutex);
 }
 
+
+static void sas_port_event_worker(struct work_struct *work)
+{
+	struct asd_sas_event *ev = to_asd_sas_event(work);
+
+	sas_port_event_fns[ev->event](work);
+	sas_free_event(ev);
+}
+
+static void sas_phy_event_worker(struct work_struct *work)
+{
+	struct asd_sas_event *ev = to_asd_sas_event(work);
+
+	sas_phy_event_fns[ev->event](work);
+	sas_free_event(ev);
+}
+
 static int sas_notify_port_event(struct asd_sas_phy *phy, enum port_event event)
 {
+	struct asd_sas_event *ev;
 	struct sas_ha_struct *ha = phy->ha;
+	int ret;
 
 	BUG_ON(event >= PORT_NUM_EVENTS);
 
-	return sas_queue_event(event, &phy->port_events_pending,
-			       &phy->port_events[event].work, ha);
+	ev = sas_alloc_event(phy);
+	if (!ev)
+		return -ENOMEM;
+
+	INIT_SAS_EVENT(ev, sas_port_event_worker, phy, event);
+
+	ret = sas_queue_event(event, &ev->work, ha);
+	if (ret != 1)
+		sas_free_event(ev);
+
+	return ret;
 }
 
 int sas_notify_phy_event(struct asd_sas_phy *phy, enum phy_event event)
 {
+	struct asd_sas_event *ev;
 	struct sas_ha_struct *ha = phy->ha;
+	int ret;
 
 	BUG_ON(event >= PHY_NUM_EVENTS);
 
-	return sas_queue_event(event, &phy->phy_events_pending,
-			       &phy->phy_events[event].work, ha);
+	ev = sas_alloc_event(phy);
+	if (!ev)
+		return -ENOMEM;
+
+	INIT_SAS_EVENT(ev, sas_phy_event_worker, phy, event);
+
+	ret = sas_queue_event(event, &ev->work, ha);
+	if (ret != 1)
+		sas_free_event(ev);
+
+	return ret;
 }
 
 int sas_init_events(struct sas_ha_struct *sas_ha)
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c
index 3183d63de4da..6a4f8198b78e 100644
--- a/drivers/scsi/libsas/sas_expander.c
+++ b/drivers/scsi/libsas/sas_expander.c
@@ -293,6 +293,7 @@ static void sas_set_ex_phy(struct domain_device *dev, int phy_id, void *rsp)
 	phy->phy->minimum_linkrate = dr->pmin_linkrate;
 	phy->phy->maximum_linkrate = dr->pmax_linkrate;
 	phy->phy->negotiated_linkrate = phy->linkrate;
+	phy->phy->enabled = (phy->linkrate != SAS_PHY_DISABLED);
 
  skip:
 	if (new_phy)
@@ -686,7 +687,7 @@ int sas_smp_get_phy_events(struct sas_phy *phy)
 	res = smp_execute_task(dev, req, RPEL_REQ_SIZE,
 			            resp, RPEL_RESP_SIZE);
 
-	if (!res)
+	if (res)
 		goto out;
 
 	phy->invalid_dword_count = scsi_to_u32(&resp[12]);
@@ -695,6 +696,7 @@ int sas_smp_get_phy_events(struct sas_phy *phy)
 	phy->phy_reset_problem_count = scsi_to_u32(&resp[24]);
 
  out:
+	kfree(req);
 	kfree(resp);
 	return res;
 
@@ -1914,7 +1916,8 @@ static void sas_unregister_devs_sas_addr(struct domain_device *parent,
 		sas_port_delete_phy(phy->port, phy->phy);
 		sas_device_set_phy(found, phy->port);
 		if (phy->port->num_phys == 0)
-			sas_port_delete(phy->port);
+			list_add_tail(&phy->port->del_list,
+				&parent->port->sas_port_del_list);
 		phy->port = NULL;
 	}
 }
@@ -2122,7 +2125,7 @@ int sas_ex_revalidate_domain(struct domain_device *port_dev)
 	struct domain_device *dev = NULL;
 
 	res = sas_find_bcast_dev(port_dev, &dev);
-	while (res == 0 && dev) {
+	if (res == 0 && dev) {
 		struct expander_device *ex = &dev->ex_dev;
 		int i = 0, phy_id;
 
@@ -2134,9 +2137,6 @@ int sas_ex_revalidate_domain(struct domain_device *port_dev)
 			res = sas_rediscover(dev, phy_id);
 			i = phy_id + 1;
 		} while (i < ex->num_phys);
-
-		dev = NULL;
-		res = sas_find_bcast_dev(port_dev, &dev);
 	}
 	return res;
 }
diff --git a/drivers/scsi/libsas/sas_init.c b/drivers/scsi/libsas/sas_init.c
index 64fa6f53cb8b..c81a63b5dc71 100644
--- a/drivers/scsi/libsas/sas_init.c
+++ b/drivers/scsi/libsas/sas_init.c
@@ -39,6 +39,7 @@
 #include "../scsi_sas_internal.h"
 
 static struct kmem_cache *sas_task_cache;
+static struct kmem_cache *sas_event_cache;
 
 struct sas_task *sas_alloc_task(gfp_t flags)
 {
@@ -109,6 +110,7 @@ void sas_hash_addr(u8 *hashed, const u8 *sas_addr)
 
 int sas_register_ha(struct sas_ha_struct *sas_ha)
 {
+	char name[64];
 	int error = 0;
 
 	mutex_init(&sas_ha->disco_mutex);
@@ -122,6 +124,8 @@ int sas_register_ha(struct sas_ha_struct *sas_ha)
 	INIT_LIST_HEAD(&sas_ha->defer_q);
 	INIT_LIST_HEAD(&sas_ha->eh_dev_q);
 
+	sas_ha->event_thres = SAS_PHY_SHUTDOWN_THRES;
+
 	error = sas_register_phys(sas_ha);
 	if (error) {
 		printk(KERN_NOTICE "couldn't register sas phys:%d\n", error);
@@ -140,10 +144,24 @@ int sas_register_ha(struct sas_ha_struct *sas_ha)
 		goto Undo_ports;
 	}
 
+	error = -ENOMEM;
+	snprintf(name, sizeof(name), "%s_event_q", dev_name(sas_ha->dev));
+	sas_ha->event_q = create_singlethread_workqueue(name);
+	if (!sas_ha->event_q)
+		goto Undo_ports;
+
+	snprintf(name, sizeof(name), "%s_disco_q", dev_name(sas_ha->dev));
+	sas_ha->disco_q = create_singlethread_workqueue(name);
+	if (!sas_ha->disco_q)
+		goto Undo_event_q;
+
 	INIT_LIST_HEAD(&sas_ha->eh_done_q);
 	INIT_LIST_HEAD(&sas_ha->eh_ata_q);
 
 	return 0;
+
+Undo_event_q:
+	destroy_workqueue(sas_ha->event_q);
 Undo_ports:
 	sas_unregister_ports(sas_ha);
 Undo_phys:
@@ -174,6 +192,9 @@ int sas_unregister_ha(struct sas_ha_struct *sas_ha)
 	__sas_drain_work(sas_ha);
 	mutex_unlock(&sas_ha->drain_mutex);
 
+	destroy_workqueue(sas_ha->disco_q);
+	destroy_workqueue(sas_ha->event_q);
+
 	return 0;
 }
 
@@ -364,8 +385,6 @@ void sas_prep_resume_ha(struct sas_ha_struct *ha)
 		struct asd_sas_phy *phy = ha->sas_phy[i];
 
 		memset(phy->attached_sas_addr, 0, SAS_ADDR_SIZE);
-		phy->port_events_pending = 0;
-		phy->phy_events_pending = 0;
 		phy->frame_rcvd_size = 0;
 	}
 }
@@ -537,6 +556,37 @@ static struct sas_function_template sft = {
 	.smp_handler = sas_smp_handler,
 };
 
+static inline ssize_t phy_event_threshold_show(struct device *dev,
+			struct device_attribute *attr, char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(dev);
+	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
+
+	return scnprintf(buf, PAGE_SIZE, "%u\n", sha->event_thres);
+}
+
+static inline ssize_t phy_event_threshold_store(struct device *dev,
+			struct device_attribute *attr,
+			const char *buf, size_t count)
+{
+	struct Scsi_Host *shost = class_to_shost(dev);
+	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
+
+	sha->event_thres = simple_strtol(buf, NULL, 10);
+
+	/* threshold cannot be set too small */
+	if (sha->event_thres < 32)
+		sha->event_thres = 32;
+
+	return count;
+}
+
+DEVICE_ATTR(phy_event_threshold,
+	S_IRUGO|S_IWUSR,
+	phy_event_threshold_show,
+	phy_event_threshold_store);
+EXPORT_SYMBOL_GPL(dev_attr_phy_event_threshold);
+
 struct scsi_transport_template *
 sas_domain_attach_transport(struct sas_domain_function_template *dft)
 {
@@ -555,20 +605,71 @@ sas_domain_attach_transport(struct sas_domain_function_template *dft)
 }
 EXPORT_SYMBOL_GPL(sas_domain_attach_transport);
 
+
+struct asd_sas_event *sas_alloc_event(struct asd_sas_phy *phy)
+{
+	struct asd_sas_event *event;
+	gfp_t flags = in_interrupt() ? GFP_ATOMIC : GFP_KERNEL;
+	struct sas_ha_struct *sas_ha = phy->ha;
+	struct sas_internal *i =
+		to_sas_internal(sas_ha->core.shost->transportt);
+
+	event = kmem_cache_zalloc(sas_event_cache, flags);
+	if (!event)
+		return NULL;
+
+	atomic_inc(&phy->event_nr);
+
+	if (atomic_read(&phy->event_nr) > phy->ha->event_thres) {
+		if (i->dft->lldd_control_phy) {
+			if (cmpxchg(&phy->in_shutdown, 0, 1) == 0) {
+				sas_printk("The phy%02d bursting events, shut it down.\n",
+					phy->id);
+				sas_notify_phy_event(phy, PHYE_SHUTDOWN);
+			}
+		} else {
+			/* Do not support PHY control, stop allocating events */
+			WARN_ONCE(1, "PHY control not supported.\n");
+			kmem_cache_free(sas_event_cache, event);
+			atomic_dec(&phy->event_nr);
+			event = NULL;
+		}
+	}
+
+	return event;
+}
+
+void sas_free_event(struct asd_sas_event *event)
+{
+	struct asd_sas_phy *phy = event->phy;
+
+	kmem_cache_free(sas_event_cache, event);
+	atomic_dec(&phy->event_nr);
+}
+
 /* ---------- SAS Class register/unregister ---------- */
 
 static int __init sas_class_init(void)
 {
 	sas_task_cache = KMEM_CACHE(sas_task, SLAB_HWCACHE_ALIGN);
 	if (!sas_task_cache)
-		return -ENOMEM;
+		goto out;
+
+	sas_event_cache = KMEM_CACHE(asd_sas_event, SLAB_HWCACHE_ALIGN);
+	if (!sas_event_cache)
+		goto free_task_kmem;
 
 	return 0;
+free_task_kmem:
+	kmem_cache_destroy(sas_task_cache);
+out:
+	return -ENOMEM;
 }
 
 static void __exit sas_class_exit(void)
 {
 	kmem_cache_destroy(sas_task_cache);
+	kmem_cache_destroy(sas_event_cache);
 }
 
 MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
diff --git a/drivers/scsi/libsas/sas_internal.h b/drivers/scsi/libsas/sas_internal.h
index c07e08136491..50e12d662ffe 100644
--- a/drivers/scsi/libsas/sas_internal.h
+++ b/drivers/scsi/libsas/sas_internal.h
@@ -61,6 +61,9 @@ int sas_show_oob_mode(enum sas_oob_mode oob_mode, char *buf);
 int  sas_register_phys(struct sas_ha_struct *sas_ha);
 void sas_unregister_phys(struct sas_ha_struct *sas_ha);
 
+struct asd_sas_event *sas_alloc_event(struct asd_sas_phy *phy);
+void sas_free_event(struct asd_sas_event *event);
+
 int  sas_register_ports(struct sas_ha_struct *sas_ha);
 void sas_unregister_ports(struct sas_ha_struct *sas_ha);
 
@@ -98,6 +101,10 @@ int sas_try_ata_reset(struct asd_sas_phy *phy);
 void sas_hae_reset(struct work_struct *work);
 
 void sas_free_device(struct kref *kref);
+void sas_destruct_devices(struct asd_sas_port *port);
+
+extern const work_func_t sas_phy_event_fns[PHY_NUM_EVENTS];
+extern const work_func_t sas_port_event_fns[PORT_NUM_EVENTS];
 
 #ifdef CONFIG_SCSI_SAS_HOST_SMP
 extern void sas_smp_host_handler(struct bsg_job *job, struct Scsi_Host *shost);
diff --git a/drivers/scsi/libsas/sas_phy.c b/drivers/scsi/libsas/sas_phy.c
index cdee446c29e1..bf3e1b979ca6 100644
--- a/drivers/scsi/libsas/sas_phy.c
+++ b/drivers/scsi/libsas/sas_phy.c
@@ -35,7 +35,7 @@ static void sas_phye_loss_of_signal(struct work_struct *work)
 	struct asd_sas_event *ev = to_asd_sas_event(work);
 	struct asd_sas_phy *phy = ev->phy;
 
-	clear_bit(PHYE_LOSS_OF_SIGNAL, &phy->phy_events_pending);
+	phy->in_shutdown = 0;
 	phy->error = 0;
 	sas_deform_port(phy, 1);
 }
@@ -45,7 +45,7 @@ static void sas_phye_oob_done(struct work_struct *work)
 	struct asd_sas_event *ev = to_asd_sas_event(work);
 	struct asd_sas_phy *phy = ev->phy;
 
-	clear_bit(PHYE_OOB_DONE, &phy->phy_events_pending);
+	phy->in_shutdown = 0;
 	phy->error = 0;
 }
 
@@ -58,8 +58,6 @@ static void sas_phye_oob_error(struct work_struct *work)
 	struct sas_internal *i =
 		to_sas_internal(sas_ha->core.shost->transportt);
 
-	clear_bit(PHYE_OOB_ERROR, &phy->phy_events_pending);
-
 	sas_deform_port(phy, 1);
 
 	if (!port && phy->enabled && i->dft->lldd_control_phy) {
@@ -88,8 +86,6 @@ static void sas_phye_spinup_hold(struct work_struct *work)
 	struct sas_internal *i =
 		to_sas_internal(sas_ha->core.shost->transportt);
 
-	clear_bit(PHYE_SPINUP_HOLD, &phy->phy_events_pending);
-
 	phy->error = 0;
 	i->dft->lldd_control_phy(phy, PHY_FUNC_RELEASE_SPINUP_HOLD, NULL);
 }
@@ -99,8 +95,6 @@ static void sas_phye_resume_timeout(struct work_struct *work)
 	struct asd_sas_event *ev = to_asd_sas_event(work);
 	struct asd_sas_phy *phy = ev->phy;
 
-	clear_bit(PHYE_RESUME_TIMEOUT, &phy->phy_events_pending);
-
 	/* phew, lldd got the phy back in the nick of time */
 	if (!phy->suspended) {
 		dev_info(&phy->phy->dev, "resume timeout cancelled\n");
@@ -113,45 +107,41 @@ static void sas_phye_resume_timeout(struct work_struct *work)
 }
 
 
+static void sas_phye_shutdown(struct work_struct *work)
+{
+	struct asd_sas_event *ev = to_asd_sas_event(work);
+	struct asd_sas_phy *phy = ev->phy;
+	struct sas_ha_struct *sas_ha = phy->ha;
+	struct sas_internal *i =
+		to_sas_internal(sas_ha->core.shost->transportt);
+
+	if (phy->enabled) {
+		int ret;
+
+		phy->error = 0;
+		phy->enabled = 0;
+		ret = i->dft->lldd_control_phy(phy, PHY_FUNC_DISABLE, NULL);
+		if (ret)
+			sas_printk("lldd disable phy%02d returned %d\n",
+				phy->id, ret);
+	} else
+		sas_printk("phy%02d is not enabled, cannot shutdown\n",
+			phy->id);
+}
+
 /* ---------- Phy class registration ---------- */
 
 int sas_register_phys(struct sas_ha_struct *sas_ha)
 {
 	int i;
 
-	static const work_func_t sas_phy_event_fns[PHY_NUM_EVENTS] = {
-		[PHYE_LOSS_OF_SIGNAL] = sas_phye_loss_of_signal,
-		[PHYE_OOB_DONE] = sas_phye_oob_done,
-		[PHYE_OOB_ERROR] = sas_phye_oob_error,
-		[PHYE_SPINUP_HOLD] = sas_phye_spinup_hold,
-		[PHYE_RESUME_TIMEOUT] = sas_phye_resume_timeout,
-
-	};
-
-	static const work_func_t sas_port_event_fns[PORT_NUM_EVENTS] = {
-		[PORTE_BYTES_DMAED] = sas_porte_bytes_dmaed,
-		[PORTE_BROADCAST_RCVD] = sas_porte_broadcast_rcvd,
-		[PORTE_LINK_RESET_ERR] = sas_porte_link_reset_err,
-		[PORTE_TIMER_EVENT] = sas_porte_timer_event,
-		[PORTE_HARD_RESET] = sas_porte_hard_reset,
-	};
-
 	/* Now register the phys. */
 	for (i = 0; i < sas_ha->num_phys; i++) {
-		int k;
 		struct asd_sas_phy *phy = sas_ha->sas_phy[i];
 
 		phy->error = 0;
+		atomic_set(&phy->event_nr, 0);
 		INIT_LIST_HEAD(&phy->port_phy_el);
-		for (k = 0; k < PORT_NUM_EVENTS; k++) {
-			INIT_SAS_WORK(&phy->port_events[k].work, sas_port_event_fns[k]);
-			phy->port_events[k].phy = phy;
-		}
-
-		for (k = 0; k < PHY_NUM_EVENTS; k++) {
-			INIT_SAS_WORK(&phy->phy_events[k].work, sas_phy_event_fns[k]);
-			phy->phy_events[k].phy = phy;
-		}
 
 		phy->port = NULL;
 		phy->ha = sas_ha;
@@ -179,3 +169,12 @@ int sas_register_phys(struct sas_ha_struct *sas_ha)
 
 	return 0;
 }
+
+const work_func_t sas_phy_event_fns[PHY_NUM_EVENTS] = {
+	[PHYE_LOSS_OF_SIGNAL] = sas_phye_loss_of_signal,
+	[PHYE_OOB_DONE] = sas_phye_oob_done,
+	[PHYE_OOB_ERROR] = sas_phye_oob_error,
+	[PHYE_SPINUP_HOLD] = sas_phye_spinup_hold,
+	[PHYE_RESUME_TIMEOUT] = sas_phye_resume_timeout,
+	[PHYE_SHUTDOWN] = sas_phye_shutdown,
+};
diff --git a/drivers/scsi/libsas/sas_port.c b/drivers/scsi/libsas/sas_port.c
index d3c5297c6c89..f07e55d3aa73 100644
--- a/drivers/scsi/libsas/sas_port.c
+++ b/drivers/scsi/libsas/sas_port.c
@@ -66,6 +66,7 @@ static void sas_resume_port(struct asd_sas_phy *phy)
 		rc = sas_notify_lldd_dev_found(dev);
 		if (rc) {
 			sas_unregister_dev(port, dev);
+			sas_destruct_devices(port);
 			continue;
 		}
 
@@ -192,6 +193,7 @@ static void sas_form_port(struct asd_sas_phy *phy)
 		si->dft->lldd_port_formed(phy);
 
 	sas_discover_event(phy->port, DISCE_DISCOVER_DOMAIN);
+	flush_workqueue(sas_ha->disco_q);
 }
 
 /**
@@ -219,6 +221,7 @@ void sas_deform_port(struct asd_sas_phy *phy, int gone)
 
 	if (port->num_phys == 1) {
 		sas_unregister_domain_devices(port, gone);
+		sas_destruct_devices(port);
 		sas_port_delete(port->port);
 		port->port = NULL;
 	} else {
@@ -261,8 +264,6 @@ void sas_porte_bytes_dmaed(struct work_struct *work)
 	struct asd_sas_event *ev = to_asd_sas_event(work);
 	struct asd_sas_phy *phy = ev->phy;
 
-	clear_bit(PORTE_BYTES_DMAED, &phy->port_events_pending);
-
 	sas_form_port(phy);
 }
 
@@ -273,14 +274,15 @@ void sas_porte_broadcast_rcvd(struct work_struct *work)
 	unsigned long flags;
 	u32 prim;
 
-	clear_bit(PORTE_BROADCAST_RCVD, &phy->port_events_pending);
-
 	spin_lock_irqsave(&phy->sas_prim_lock, flags);
 	prim = phy->sas_prim;
 	spin_unlock_irqrestore(&phy->sas_prim_lock, flags);
 
 	SAS_DPRINTK("broadcast received: %d\n", prim);
 	sas_discover_event(phy->port, DISCE_REVALIDATE_DOMAIN);
+
+	if (phy->port)
+		flush_workqueue(phy->port->ha->disco_q);
 }
 
 void sas_porte_link_reset_err(struct work_struct *work)
@@ -288,8 +290,6 @@ void sas_porte_link_reset_err(struct work_struct *work)
 	struct asd_sas_event *ev = to_asd_sas_event(work);
 	struct asd_sas_phy *phy = ev->phy;
 
-	clear_bit(PORTE_LINK_RESET_ERR, &phy->port_events_pending);
-
 	sas_deform_port(phy, 1);
 }
 
@@ -298,8 +298,6 @@ void sas_porte_timer_event(struct work_struct *work)
 	struct asd_sas_event *ev = to_asd_sas_event(work);
 	struct asd_sas_phy *phy = ev->phy;
 
-	clear_bit(PORTE_TIMER_EVENT, &phy->port_events_pending);
-
 	sas_deform_port(phy, 1);
 }
 
@@ -308,8 +306,6 @@ void sas_porte_hard_reset(struct work_struct *work)
 	struct asd_sas_event *ev = to_asd_sas_event(work);
 	struct asd_sas_phy *phy = ev->phy;
 
-	clear_bit(PORTE_HARD_RESET, &phy->port_events_pending);
-
 	sas_deform_port(phy, 1);
 }
 
@@ -323,6 +319,7 @@ static void sas_init_port(struct asd_sas_port *port,
 	INIT_LIST_HEAD(&port->dev_list);
 	INIT_LIST_HEAD(&port->disco_list);
 	INIT_LIST_HEAD(&port->destroy_list);
+	INIT_LIST_HEAD(&port->sas_port_del_list);
 	spin_lock_init(&port->phy_list_lock);
 	INIT_LIST_HEAD(&port->phy_list);
 	port->ha = sas_ha;
@@ -353,3 +350,11 @@ void sas_unregister_ports(struct sas_ha_struct *sas_ha)
 			sas_deform_port(sas_ha->sas_phy[i], 0);
 
 }
+
+const work_func_t sas_port_event_fns[PORT_NUM_EVENTS] = {
+	[PORTE_BYTES_DMAED] = sas_porte_bytes_dmaed,
+	[PORTE_BROADCAST_RCVD] = sas_porte_broadcast_rcvd,
+	[PORTE_LINK_RESET_ERR] = sas_porte_link_reset_err,
+	[PORTE_TIMER_EVENT] = sas_porte_timer_event,
+	[PORTE_HARD_RESET] = sas_porte_hard_reset,
+};
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index c9406852c3e9..6de9681ace82 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -27,6 +27,7 @@
 #include <linux/firmware.h>
 #include <linux/export.h>
 #include <linux/ctype.h>
+#include <linux/kernel.h>
 
 #include "sas_internal.h"
 
@@ -959,21 +960,6 @@ void sas_target_destroy(struct scsi_target *starget)
 	sas_put_device(found_dev);
 }
 
-static void sas_parse_addr(u8 *sas_addr, const char *p)
-{
-	int i;
-	for (i = 0; i < SAS_ADDR_SIZE; i++) {
-		u8 h, l;
-		if (!*p)
-			break;
-		h = isdigit(*p) ? *p-'0' : toupper(*p)-'A'+10;
-		p++;
-		l = isdigit(*p) ? *p-'0' : toupper(*p)-'A'+10;
-		p++;
-		sas_addr[i] = (h<<4) | l;
-	}
-}
-
 #define SAS_STRING_ADDR_SIZE	16
 
 int sas_request_addr(struct Scsi_Host *shost, u8 *addr)
@@ -990,7 +976,9 @@ int sas_request_addr(struct Scsi_Host *shost, u8 *addr)
 		goto out;
 	}
 
-	sas_parse_addr(addr, fw->data);
+	res = hex2bin(addr, fw->data, strnlen(fw->data, SAS_ADDR_SIZE * 2) / 2);
+	if (res)
+		goto out;
 
 out:
 	release_firmware(fw);
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 231302273257..61fb46da05d4 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -55,9 +55,10 @@ struct lpfc_sli2_slim;
 #define LPFC_MAX_SG_SLI4_SEG_CNT_DIF 128 /* sg element count per scsi cmnd */
 #define LPFC_MAX_SG_SEG_CNT_DIF 512	/* sg element count per scsi cmnd  */
 #define LPFC_MAX_SG_SEG_CNT	4096	/* sg element count per scsi cmnd */
+#define LPFC_MIN_SG_SEG_CNT	32	/* sg element count per scsi cmnd */
 #define LPFC_MAX_SGL_SEG_CNT	512	/* SGL element count per scsi cmnd */
 #define LPFC_MAX_BPL_SEG_CNT	4096	/* BPL element count per scsi cmnd */
-#define LPFC_MAX_NVME_SEG_CNT	128	/* max SGL element cnt per NVME cmnd */
+#define LPFC_MAX_NVME_SEG_CNT	256	/* max SGL element cnt per NVME cmnd */
 
 #define LPFC_MAX_SGE_SIZE       0x80000000 /* Maximum data allowed in a SGE */
 #define LPFC_IOCB_LIST_CNT	2250	/* list of IOCBs for fast-path usage. */
@@ -705,7 +706,6 @@ struct lpfc_hba {
 					 * capability
 					 */
 #define HBA_NVME_IOQ_FLUSH      0x80000 /* NVME IO queues flushed. */
-#define NVME_XRI_ABORT_EVENT	0x100000
 
 	uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
 	struct lpfc_dmabuf slim2p;
@@ -945,6 +945,8 @@ struct lpfc_hba {
 	struct list_head lpfc_nvme_buf_list_get;
 	struct list_head lpfc_nvme_buf_list_put;
 	uint32_t total_nvme_bufs;
+	uint32_t get_nvme_bufs;
+	uint32_t put_nvme_bufs;
 	struct list_head lpfc_iocb_list;
 	uint32_t total_iocbq_bufs;
 	struct list_head active_rrq_list;
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 82f6e219ee34..d188fb565a32 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -148,6 +148,7 @@ lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr,
 	struct lpfc_hba   *phba = vport->phba;
 	struct lpfc_nvmet_tgtport *tgtp;
 	struct nvme_fc_local_port *localport;
+	struct lpfc_nvme_lport *lport;
 	struct lpfc_nodelist *ndlp;
 	struct nvme_fc_remote_port *nrport;
 	uint64_t data1, data2, data3, tot;
@@ -198,10 +199,15 @@ lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr,
 		}
 
 		len += snprintf(buf+len, PAGE_SIZE-len,
-				"LS: Xmt %08x Drop %08x Cmpl %08x Err %08x\n",
+				"LS: Xmt %08x Drop %08x Cmpl %08x\n",
 				atomic_read(&tgtp->xmt_ls_rsp),
 				atomic_read(&tgtp->xmt_ls_drop),
-				atomic_read(&tgtp->xmt_ls_rsp_cmpl),
+				atomic_read(&tgtp->xmt_ls_rsp_cmpl));
+
+		len += snprintf(buf + len, PAGE_SIZE - len,
+				"LS: RSP Abort %08x xb %08x Err %08x\n",
+				atomic_read(&tgtp->xmt_ls_rsp_aborted),
+				atomic_read(&tgtp->xmt_ls_rsp_xb_set),
 				atomic_read(&tgtp->xmt_ls_rsp_error));
 
 		len += snprintf(buf+len, PAGE_SIZE-len,
@@ -236,6 +242,12 @@ lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr,
 				atomic_read(&tgtp->xmt_fcp_rsp_drop));
 
 		len += snprintf(buf+len, PAGE_SIZE-len,
+				"FCP Rsp Abort: %08x xb %08x xricqe  %08x\n",
+				atomic_read(&tgtp->xmt_fcp_rsp_aborted),
+				atomic_read(&tgtp->xmt_fcp_rsp_xb_set),
+				atomic_read(&tgtp->xmt_fcp_xri_abort_cqe));
+
+		len += snprintf(buf + len, PAGE_SIZE - len,
 				"ABORT: Xmt %08x Cmpl %08x\n",
 				atomic_read(&tgtp->xmt_fcp_abort),
 				atomic_read(&tgtp->xmt_fcp_abort_cmpl));
@@ -271,6 +283,7 @@ lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr,
 				wwn_to_u64(vport->fc_portname.u.wwn));
 		return len;
 	}
+	lport = (struct lpfc_nvme_lport *)localport->private;
 	len = snprintf(buf, PAGE_SIZE, "NVME Initiator Enabled\n");
 
 	spin_lock_irq(shost->host_lock);
@@ -347,9 +360,16 @@ lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr,
 
 	len += snprintf(buf + len, PAGE_SIZE - len, "\nNVME Statistics\n");
 	len += snprintf(buf+len, PAGE_SIZE-len,
-			"LS: Xmt %016x Cmpl %016x\n",
+			"LS: Xmt %010x Cmpl %010x Abort %08x\n",
 			atomic_read(&phba->fc4NvmeLsRequests),
-			atomic_read(&phba->fc4NvmeLsCmpls));
+			atomic_read(&phba->fc4NvmeLsCmpls),
+			atomic_read(&lport->xmt_ls_abort));
+
+	len += snprintf(buf + len, PAGE_SIZE - len,
+			"LS XMIT: Err %08x  CMPL: xb %08x Err %08x\n",
+			atomic_read(&lport->xmt_ls_err),
+			atomic_read(&lport->cmpl_ls_xb),
+			atomic_read(&lport->cmpl_ls_err));
 
 	tot = atomic_read(&phba->fc4NvmeIoCmpls);
 	data1 = atomic_read(&phba->fc4NvmeInputRequests);
@@ -360,8 +380,22 @@ lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr,
 			data1, data2, data3);
 
 	len += snprintf(buf+len, PAGE_SIZE-len,
-			"    Cmpl %016llx Outstanding %016llx\n",
-			tot, (data1 + data2 + data3) - tot);
+			"    noxri %08x nondlp %08x qdepth %08x "
+			"wqerr %08x\n",
+			atomic_read(&lport->xmt_fcp_noxri),
+			atomic_read(&lport->xmt_fcp_bad_ndlp),
+			atomic_read(&lport->xmt_fcp_qdepth),
+			atomic_read(&lport->xmt_fcp_wqerr));
+
+	len += snprintf(buf + len, PAGE_SIZE - len,
+			"    Cmpl %016llx Outstanding %016llx Abort %08x\n",
+			tot, ((data1 + data2 + data3) - tot),
+			atomic_read(&lport->xmt_fcp_abort));
+
+	len += snprintf(buf + len, PAGE_SIZE - len,
+			"FCP CMPL: xb %08x Err %08x\n",
+			atomic_read(&lport->cmpl_fcp_xb),
+			atomic_read(&lport->cmpl_fcp_err));
 	return len;
 }
 
@@ -3366,12 +3400,13 @@ LPFC_ATTR_R(suppress_rsp, 1, 0, 1,
 
 /*
  * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds
+ * lpfc_nvmet_mrq = 0  driver will calcualte optimal number of RQ pairs
  * lpfc_nvmet_mrq = 1  use a single RQ pair
  * lpfc_nvmet_mrq >= 2  use specified RQ pairs for MRQ
  *
  */
 LPFC_ATTR_R(nvmet_mrq,
-	    1, 1, 16,
+	    LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX,
 	    "Specify number of RQ pairs for processing NVMET cmds");
 
 /*
@@ -5139,7 +5174,7 @@ LPFC_ATTR(delay_discovery, 0, 0, 1,
  * this parameter will be limited to 128 if BlockGuard is enabled under SLI4
  * and will be limited to 512 if BlockGuard is enabled under SLI3.
  */
-LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_DEFAULT_SG_SEG_CNT,
+LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_MIN_SG_SEG_CNT,
 	    LPFC_MAX_SG_SEG_CNT, "Max Scatter Gather Segment Count");
 
 /*
@@ -6362,6 +6397,9 @@ lpfc_nvme_mod_param_dep(struct lpfc_hba *phba)
 				phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX;
 		}
 
+		if (!phba->cfg_nvmet_mrq)
+			phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel;
+
 		/* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */
 		if (phba->cfg_nvmet_mrq > phba->cfg_nvme_io_channel) {
 			phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel;
@@ -6369,10 +6407,13 @@ lpfc_nvme_mod_param_dep(struct lpfc_hba *phba)
 					"6018 Adjust lpfc_nvmet_mrq to %d\n",
 					phba->cfg_nvmet_mrq);
 		}
+		if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
+			phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
+
 	} else {
 		/* Not NVME Target mode.  Turn off Target parameters. */
 		phba->nvmet_support = 0;
-		phba->cfg_nvmet_mrq = 0;
+		phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_OFF;
 		phba->cfg_nvmet_fb_size = 0;
 	}
 
diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h
index 4e858b38529a..559f9aa0ed08 100644
--- a/drivers/scsi/lpfc/lpfc_crtn.h
+++ b/drivers/scsi/lpfc/lpfc_crtn.h
@@ -254,6 +254,8 @@ void lpfc_nvmet_ctxbuf_post(struct lpfc_hba *phba,
 			    struct lpfc_nvmet_ctxbuf *ctxp);
 int lpfc_nvmet_rcv_unsol_abort(struct lpfc_vport *vport,
 			       struct fc_frame_header *fc_hdr);
+void lpfc_sli_flush_nvme_rings(struct lpfc_hba *phba);
+void lpfc_nvme_wait_for_io_drain(struct lpfc_hba *phba);
 void lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *, struct fcf_record *,
 			uint16_t);
 int lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c
index f77673ab4a84..9d20d2c208c7 100644
--- a/drivers/scsi/lpfc/lpfc_ct.c
+++ b/drivers/scsi/lpfc/lpfc_ct.c
@@ -471,6 +471,7 @@ lpfc_prep_node_fc4type(struct lpfc_vport *vport, uint32_t Did, uint8_t fc4_type)
 				"Parse GID_FTrsp: did:x%x flg:x%x x%x",
 				Did, ndlp->nlp_flag, vport->fc_flag);
 
+			ndlp->nlp_fc4_type &= ~(NLP_FC4_FCP | NLP_FC4_NVME);
 			/* By default, the driver expects to support FCP FC4 */
 			if (fc4_type == FC_TYPE_FCP)
 				ndlp->nlp_fc4_type |= NLP_FC4_FCP;
@@ -685,6 +686,25 @@ lpfc_cmpl_ct_cmd_gid_ft(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 			lpfc_els_flush_rscn(vport);
 		goto out;
 	}
+
+	spin_lock_irq(shost->host_lock);
+	if (vport->fc_flag & FC_RSCN_DEFERRED) {
+		vport->fc_flag &= ~FC_RSCN_DEFERRED;
+		spin_unlock_irq(shost->host_lock);
+
+		/*
+		 * Skip processing the NS response
+		 * Re-issue the NS cmd
+		 */
+		lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+				 "0151 Process Deferred RSCN Data: x%x x%x\n",
+				 vport->fc_flag, vport->fc_rscn_id_cnt);
+		lpfc_els_handle_rscn(vport);
+
+		goto out;
+	}
+	spin_unlock_irq(shost->host_lock);
+
 	if (irsp->ulpStatus) {
 		/* Check for retry */
 		if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index 2bf5ad3b1512..17ea3bb04266 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -750,6 +750,8 @@ lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size)
 	struct lpfc_hba   *phba = vport->phba;
 	struct lpfc_nvmet_tgtport *tgtp;
 	struct lpfc_nvmet_rcv_ctx *ctxp, *next_ctxp;
+	struct nvme_fc_local_port *localport;
+	struct lpfc_nvme_lport *lport;
 	uint64_t tot, data1, data2, data3;
 	int len = 0;
 	int cnt;
@@ -775,10 +777,15 @@ lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size)
 		}
 
 		len += snprintf(buf + len, size - len,
-				"LS: Xmt %08x Drop %08x Cmpl %08x Err %08x\n",
+				"LS: Xmt %08x Drop %08x Cmpl %08x\n",
 				atomic_read(&tgtp->xmt_ls_rsp),
 				atomic_read(&tgtp->xmt_ls_drop),
-				atomic_read(&tgtp->xmt_ls_rsp_cmpl),
+				atomic_read(&tgtp->xmt_ls_rsp_cmpl));
+
+		len += snprintf(buf + len, size - len,
+				"LS: RSP Abort %08x xb %08x Err %08x\n",
+				atomic_read(&tgtp->xmt_ls_rsp_aborted),
+				atomic_read(&tgtp->xmt_ls_rsp_xb_set),
 				atomic_read(&tgtp->xmt_ls_rsp_error));
 
 		len += snprintf(buf + len, size - len,
@@ -812,6 +819,12 @@ lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size)
 				atomic_read(&tgtp->xmt_fcp_rsp_drop));
 
 		len += snprintf(buf + len, size - len,
+				"FCP Rsp Abort: %08x xb %08x xricqe  %08x\n",
+				atomic_read(&tgtp->xmt_fcp_rsp_aborted),
+				atomic_read(&tgtp->xmt_fcp_rsp_xb_set),
+				atomic_read(&tgtp->xmt_fcp_xri_abort_cqe));
+
+		len += snprintf(buf + len, size - len,
 				"ABORT: Xmt %08x Cmpl %08x\n",
 				atomic_read(&tgtp->xmt_fcp_abort),
 				atomic_read(&tgtp->xmt_fcp_abort_cmpl));
@@ -885,8 +898,38 @@ lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size)
 				data1, data2, data3);
 
 		len += snprintf(buf + len, size - len,
-				"    Cmpl %016llx Outstanding %016llx\n",
+				"   Cmpl %016llx Outstanding %016llx\n",
 				tot, (data1 + data2 + data3) - tot);
+
+		localport = vport->localport;
+		if (!localport)
+			return len;
+		lport = (struct lpfc_nvme_lport *)localport->private;
+		if (!lport)
+			return len;
+
+		len += snprintf(buf + len, size - len,
+				"LS Xmt Err: Abrt %08x Err %08x  "
+				"Cmpl Err: xb %08x Err %08x\n",
+				atomic_read(&lport->xmt_ls_abort),
+				atomic_read(&lport->xmt_ls_err),
+				atomic_read(&lport->cmpl_ls_xb),
+				atomic_read(&lport->cmpl_ls_err));
+
+		len += snprintf(buf + len, size - len,
+				"FCP Xmt Err: noxri %06x nondlp %06x "
+				"qdepth %06x wqerr %06x Abrt %06x\n",
+				atomic_read(&lport->xmt_fcp_noxri),
+				atomic_read(&lport->xmt_fcp_bad_ndlp),
+				atomic_read(&lport->xmt_fcp_qdepth),
+				atomic_read(&lport->xmt_fcp_wqerr),
+				atomic_read(&lport->xmt_fcp_abort));
+
+		len += snprintf(buf + len, size - len,
+				"FCP Cmpl Err: xb %08x Err %08x\n",
+				atomic_read(&lport->cmpl_fcp_xb),
+				atomic_read(&lport->cmpl_fcp_err));
+
 	}
 
 	return len;
@@ -3213,7 +3256,7 @@ lpfc_idiag_cqs_for_eq(struct lpfc_hba *phba, char *pbuffer,
 			return 1;
 	}
 
-	if (eqidx < phba->cfg_nvmet_mrq) {
+	if ((eqidx < phba->cfg_nvmet_mrq) && phba->nvmet_support) {
 		/* NVMET CQset */
 		qp = phba->sli4_hba.nvmet_cqset[eqidx];
 		*len = __lpfc_idiag_print_cq(qp, "NVMET CQset", pbuffer, *len);
@@ -3246,7 +3289,7 @@ __lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype,
 
 	len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
 			"\n%s EQ info: EQ-STAT[max:x%x noE:x%x "
-			"bs:x%x proc:x%llx eqd %d]\n",
+			"cqe_proc:x%x eqe_proc:x%llx eqd %d]\n",
 			eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3,
 			(unsigned long long)qp->q_cnt_4, qp->q_mode);
 	len += snprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
@@ -3366,6 +3409,12 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
 		if (len >= max_cnt)
 			goto too_big;
 
+		qp = phba->sli4_hba.hdr_rq;
+		len = __lpfc_idiag_print_rqpair(qp, phba->sli4_hba.dat_rq,
+						"ELS RQpair", pbuffer, len);
+		if (len >= max_cnt)
+			goto too_big;
+
 		/* Slow-path NVME LS response CQ */
 		qp = phba->sli4_hba.nvmels_cq;
 		len = __lpfc_idiag_print_cq(qp, "NVME LS",
@@ -3383,12 +3432,6 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
 		if (len >= max_cnt)
 			goto too_big;
 
-		qp = phba->sli4_hba.hdr_rq;
-		len = __lpfc_idiag_print_rqpair(qp, phba->sli4_hba.dat_rq,
-				"RQpair", pbuffer, len);
-		if (len >= max_cnt)
-			goto too_big;
-
 		goto out;
 	}
 
diff --git a/drivers/scsi/lpfc/lpfc_disc.h b/drivers/scsi/lpfc/lpfc_disc.h
index f9a566eaef04..5a7547f9d8d8 100644
--- a/drivers/scsi/lpfc/lpfc_disc.h
+++ b/drivers/scsi/lpfc/lpfc_disc.h
@@ -134,6 +134,8 @@ struct lpfc_nodelist {
 	struct lpfc_scsicmd_bkt *lat_data;	/* Latency data */
 	uint32_t fc4_prli_sent;
 	uint32_t upcall_flags;
+#define NLP_WAIT_FOR_UNREG    0x1
+
 	uint32_t nvme_fb_size; /* NVME target's supported byte cnt */
 #define NVME_FB_BIT_SHIFT 9    /* PRLI Rsp first burst in 512B units. */
 };
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index 39d5b146202e..234c7c015982 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -858,6 +858,9 @@ lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	vport->fc_flag |= FC_PT2PT;
 	spin_unlock_irq(shost->host_lock);
 
+	/* If we are pt2pt with another NPort, force NPIV off! */
+	phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
+
 	/* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
 	if ((phba->sli_rev == LPFC_SLI_REV4) && phba->fc_topology_changed) {
 		lpfc_unregister_fcf_prep(phba);
@@ -916,28 +919,29 @@ lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 		spin_lock_irq(shost->host_lock);
 		ndlp->nlp_flag |= NLP_NPR_2B_DISC;
 		spin_unlock_irq(shost->host_lock);
-	} else
+
+		mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+		if (!mbox)
+			goto fail;
+
+		lpfc_config_link(phba, mbox);
+
+		mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
+		mbox->vport = vport;
+		rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
+		if (rc == MBX_NOT_FINISHED) {
+			mempool_free(mbox, phba->mbox_mem_pool);
+			goto fail;
+		}
+	} else {
 		/* This side will wait for the PLOGI, decrement ndlp reference
 		 * count indicating that ndlp can be released when other
 		 * references to it are done.
 		 */
 		lpfc_nlp_put(ndlp);
 
-	/* If we are pt2pt with another NPort, force NPIV off! */
-	phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
-
-	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
-	if (!mbox)
-		goto fail;
-
-	lpfc_config_link(phba, mbox);
-
-	mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
-	mbox->vport = vport;
-	rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
-	if (rc == MBX_NOT_FINISHED) {
-		mempool_free(mbox, phba->mbox_mem_pool);
-		goto fail;
+		/* Start discovery - this should just do CLEAR_LA */
+		lpfc_disc_start(vport);
 	}
 
 	return 0;
@@ -1030,30 +1034,31 @@ lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 
 stop_rr_fcf_flogi:
 		/* FLOGI failure */
-		lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
-				"2858 FLOGI failure Status:x%x/x%x TMO:x%x "
-				"Data x%x x%x\n",
-				irsp->ulpStatus, irsp->un.ulpWord[4],
-				irsp->ulpTimeout, phba->hba_flag,
-				phba->fcf.fcf_flag);
+		if (!(irsp->ulpStatus == IOSTAT_LOCAL_REJECT &&
+		      ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
+					IOERR_LOOP_OPEN_FAILURE)))
+			lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+					"2858 FLOGI failure Status:x%x/x%x "
+					"TMO:x%x Data x%x x%x\n",
+					irsp->ulpStatus, irsp->un.ulpWord[4],
+					irsp->ulpTimeout, phba->hba_flag,
+					phba->fcf.fcf_flag);
 
 		/* Check for retry */
 		if (lpfc_els_retry(phba, cmdiocb, rspiocb))
 			goto out;
 
-		/* FLOGI failure */
-		lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
-				 "0100 FLOGI failure Status:x%x/x%x TMO:x%x\n",
-				 irsp->ulpStatus, irsp->un.ulpWord[4],
-				 irsp->ulpTimeout);
-
-
 		/* If this is not a loop open failure, bail out */
 		if (!(irsp->ulpStatus == IOSTAT_LOCAL_REJECT &&
 		      ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
 					IOERR_LOOP_OPEN_FAILURE)))
 			goto flogifail;
 
+		lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
+				 "0150 FLOGI failure Status:x%x/x%x TMO:x%x\n",
+				 irsp->ulpStatus, irsp->un.ulpWord[4],
+				 irsp->ulpTimeout);
+
 		/* FLOGI failed, so there is no fabric */
 		spin_lock_irq(shost->host_lock);
 		vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
@@ -1670,6 +1675,7 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
 
 		/* Two ndlps cannot have the same did on the nodelist */
 		ndlp->nlp_DID = keepDID;
+		lpfc_nlp_set_state(vport, ndlp, keep_nlp_state);
 		if (phba->sli_rev == LPFC_SLI_REV4 &&
 		    active_rrqs_xri_bitmap)
 			memcpy(ndlp->active_rrqs_xri_bitmap,
@@ -2088,6 +2094,10 @@ lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 	ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
 	spin_lock_irq(shost->host_lock);
 	ndlp->nlp_flag &= ~NLP_PRLI_SND;
+
+	/* Driver supports multiple FC4 types.  Counters matter. */
+	vport->fc_prli_sent--;
+	ndlp->fc4_prli_sent--;
 	spin_unlock_irq(shost->host_lock);
 
 	lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
@@ -2095,9 +2105,6 @@ lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 		irsp->ulpStatus, irsp->un.ulpWord[4],
 		ndlp->nlp_DID);
 
-	/* Ddriver supports multiple FC4 types.  Counters matter. */
-	vport->fc_prli_sent--;
-
 	/* PRLI completes to NPort <nlp_DID> */
 	lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
 			 "0103 PRLI completes to NPort x%06x "
@@ -2111,7 +2118,6 @@ lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 
 	if (irsp->ulpStatus) {
 		/* Check for retry */
-		ndlp->fc4_prli_sent--;
 		if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
 			/* ELS command is being retried */
 			goto out;
@@ -2190,6 +2196,15 @@ lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 		ndlp->nlp_fc4_type |= NLP_FC4_NVME;
 	local_nlp_type = ndlp->nlp_fc4_type;
 
+	/* This routine will issue 1 or 2 PRLIs, so zero all the ndlp
+	 * fields here before any of them can complete.
+	 */
+	ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
+	ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR);
+	ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
+	ndlp->nlp_flag &= ~NLP_FIRSTBURST;
+	ndlp->nvme_fb_size = 0;
+
  send_next_prli:
 	if (local_nlp_type & NLP_FC4_FCP) {
 		/* Payload is 4 + 16 = 20 x14 bytes. */
@@ -2298,6 +2313,13 @@ lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	elsiocb->iocb_cmpl = lpfc_cmpl_els_prli;
 	spin_lock_irq(shost->host_lock);
 	ndlp->nlp_flag |= NLP_PRLI_SND;
+
+	/* The vport counters are used for lpfc_scan_finished, but
+	 * the ndlp is used to track outstanding PRLIs for different
+	 * FC4 types.
+	 */
+	vport->fc_prli_sent++;
+	ndlp->fc4_prli_sent++;
 	spin_unlock_irq(shost->host_lock);
 	if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
 	    IOCB_ERROR) {
@@ -2308,12 +2330,6 @@ lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 		return 1;
 	}
 
-	/* The vport counters are used for lpfc_scan_finished, but
-	 * the ndlp is used to track outstanding PRLIs for different
-	 * FC4 types.
-	 */
-	vport->fc_prli_sent++;
-	ndlp->fc4_prli_sent++;
 
 	/* The driver supports 2 FC4 types.  Make sure
 	 * a PRLI is issued for all types before exiting.
@@ -2951,8 +2967,8 @@ lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
 	/* This will cause the callback-function lpfc_cmpl_els_cmd to
 	 * trigger the release of node.
 	 */
-
-	lpfc_nlp_put(ndlp);
+	if (!(vport->fc_flag & FC_PT2PT))
+		lpfc_nlp_put(ndlp);
 	return 0;
 }
 
@@ -6172,9 +6188,6 @@ lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
 		lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
 		/* send RECOVERY event for ALL nodes that match RSCN payload */
 		lpfc_rscn_recovery_check(vport);
-		spin_lock_irq(shost->host_lock);
-		vport->fc_flag &= ~FC_RSCN_DEFERRED;
-		spin_unlock_irq(shost->host_lock);
 		return 0;
 	}
 	lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
@@ -6849,7 +6862,7 @@ lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
 		return 1;
 
 	pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
-		*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
+	*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
 	pcmd += sizeof(uint32_t); /* Skip past command */
 
 	/* use the command's xri in the response */
@@ -8060,13 +8073,6 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 			rjt_exp = LSEXP_NOTHING_MORE;
 			break;
 		}
-
-		/* NVMET accepts NVME PRLI only.  Reject FCP PRLI */
-		if (cmd == ELS_CMD_PRLI && phba->nvmet_support) {
-			rjt_err = LSRJT_CMD_UNSUPPORTED;
-			rjt_exp = LSEXP_REQ_UNSUPPORTED;
-			break;
-		}
 		lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI);
 		break;
 	case ELS_CMD_LIRR:
@@ -8149,9 +8155,9 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 			lpfc_nlp_put(ndlp);
 		break;
 	case ELS_CMD_REC:
-			/* receive this due to exchange closed */
-			rjt_err = LSRJT_UNABLE_TPC;
-			rjt_exp = LSEXP_INVALID_OX_RX;
+		/* receive this due to exchange closed */
+		rjt_err = LSRJT_UNABLE_TPC;
+		rjt_exp = LSEXP_INVALID_OX_RX;
 		break;
 	default:
 		lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index 2bafde2b7cfe..b159a5c4e388 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -640,8 +640,6 @@ lpfc_work_done(struct lpfc_hba *phba)
 			lpfc_handle_rrq_active(phba);
 		if (phba->hba_flag & FCP_XRI_ABORT_EVENT)
 			lpfc_sli4_fcp_xri_abort_event_proc(phba);
-		if (phba->hba_flag & NVME_XRI_ABORT_EVENT)
-			lpfc_sli4_nvme_xri_abort_event_proc(phba);
 		if (phba->hba_flag & ELS_XRI_ABORT_EVENT)
 			lpfc_sli4_els_xri_abort_event_proc(phba);
 		if (phba->hba_flag & ASYNC_EVENT)
@@ -4178,12 +4176,14 @@ lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 
 		if (ndlp->nlp_fc4_type & NLP_FC4_NVME) {
 			vport->phba->nport_event_cnt++;
-			if (vport->phba->nvmet_support == 0)
-				/* Start devloss */
-				lpfc_nvme_unregister_port(vport, ndlp);
-			else
+			if (vport->phba->nvmet_support == 0) {
+				/* Start devloss if target. */
+				if (ndlp->nlp_type & NLP_NVME_TARGET)
+					lpfc_nvme_unregister_port(vport, ndlp);
+			} else {
 				/* NVMET has no upcall. */
 				lpfc_nlp_put(ndlp);
+			}
 		}
 	}
 
@@ -4207,11 +4207,13 @@ lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 		    ndlp->nlp_fc4_type & NLP_FC4_NVME) {
 			if (vport->phba->nvmet_support == 0) {
 				/* Register this rport with the transport.
-				 * Initiators take the NDLP ref count in
-				 * the register.
+				 * Only NVME Target Rports are registered with
+				 * the transport.
 				 */
-				vport->phba->nport_event_cnt++;
-				lpfc_nvme_register_port(vport, ndlp);
+				if (ndlp->nlp_type & NLP_NVME_TARGET) {
+					vport->phba->nport_event_cnt++;
+					lpfc_nvme_register_port(vport, ndlp);
+				}
 			} else {
 				/* Just take an NDLP ref count since the
 				 * target does not register rports.
@@ -5838,9 +5840,12 @@ __lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
 		if (filter(ndlp, param)) {
 			lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
 					 "3185 FIND node filter %p DID "
-					 "Data: x%p x%x x%x\n",
+					 "ndlp %p did x%x flg x%x st x%x "
+					 "xri x%x type x%x rpi x%x\n",
 					 filter, ndlp, ndlp->nlp_DID,
-					 ndlp->nlp_flag);
+					 ndlp->nlp_flag, ndlp->nlp_state,
+					 ndlp->nlp_xri, ndlp->nlp_type,
+					 ndlp->nlp_rpi);
 			return ndlp;
 		}
 	}
diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h
index 2b145966c73f..73c2f6971d2b 100644
--- a/drivers/scsi/lpfc/lpfc_hw4.h
+++ b/drivers/scsi/lpfc/lpfc_hw4.h
@@ -1122,6 +1122,7 @@ struct cq_context {
 #define LPFC_CQ_CNT_256		0x0
 #define LPFC_CQ_CNT_512		0x1
 #define LPFC_CQ_CNT_1024	0x2
+#define LPFC_CQ_CNT_WORD7	0x3
 	uint32_t word1;
 #define lpfc_cq_eq_id_SHIFT		22	/* Version 0 Only */
 #define lpfc_cq_eq_id_MASK		0x000000FF
@@ -1129,7 +1130,7 @@ struct cq_context {
 #define lpfc_cq_eq_id_2_SHIFT		0 	/* Version 2 Only */
 #define lpfc_cq_eq_id_2_MASK		0x0000FFFF
 #define lpfc_cq_eq_id_2_WORD		word1
-	uint32_t reserved0;
+	uint32_t lpfc_cq_context_count;		/* Version 2 Only */
 	uint32_t reserved1;
 };
 
@@ -1193,6 +1194,9 @@ struct lpfc_mbx_cq_create_set {
 #define lpfc_mbx_cq_create_set_arm_SHIFT	31
 #define lpfc_mbx_cq_create_set_arm_MASK		0x00000001
 #define lpfc_mbx_cq_create_set_arm_WORD		word2
+#define lpfc_mbx_cq_create_set_cq_cnt_SHIFT	16
+#define lpfc_mbx_cq_create_set_cq_cnt_MASK	0x00007FFF
+#define lpfc_mbx_cq_create_set_cq_cnt_WORD	word2
 #define lpfc_mbx_cq_create_set_num_cq_SHIFT	0
 #define lpfc_mbx_cq_create_set_num_cq_MASK	0x0000FFFF
 #define lpfc_mbx_cq_create_set_num_cq_WORD	word2
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 2b7ea7e53e12..f539c554588c 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -1034,6 +1034,7 @@ lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 	LIST_HEAD(nvmet_aborts);
 	unsigned long iflag = 0;
 	struct lpfc_sglq *sglq_entry = NULL;
+	int cnt;
 
 
 	lpfc_sli_hbqbuf_free_all(phba);
@@ -1090,11 +1091,14 @@ lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 	spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
 
 	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
+		cnt = 0;
 		list_for_each_entry_safe(psb, psb_next, &nvme_aborts, list) {
 			psb->pCmd = NULL;
 			psb->status = IOSTAT_SUCCESS;
+			cnt++;
 		}
 		spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag);
+		phba->put_nvme_bufs += cnt;
 		list_splice(&nvme_aborts, &phba->lpfc_nvme_buf_list_put);
 		spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag);
 
@@ -3339,6 +3343,7 @@ lpfc_nvme_free(struct lpfc_hba *phba)
 	list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
 				 &phba->lpfc_nvme_buf_list_put, list) {
 		list_del(&lpfc_ncmd->list);
+		phba->put_nvme_bufs--;
 		dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
 			      lpfc_ncmd->dma_handle);
 		kfree(lpfc_ncmd);
@@ -3350,6 +3355,7 @@ lpfc_nvme_free(struct lpfc_hba *phba)
 	list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
 				 &phba->lpfc_nvme_buf_list_get, list) {
 		list_del(&lpfc_ncmd->list);
+		phba->get_nvme_bufs--;
 		dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
 			      lpfc_ncmd->dma_handle);
 		kfree(lpfc_ncmd);
@@ -3754,9 +3760,11 @@ lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba)
 	uint16_t i, lxri, els_xri_cnt;
 	uint16_t nvme_xri_cnt, nvme_xri_max;
 	LIST_HEAD(nvme_sgl_list);
-	int rc;
+	int rc, cnt;
 
 	phba->total_nvme_bufs = 0;
+	phba->get_nvme_bufs = 0;
+	phba->put_nvme_bufs = 0;
 
 	if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
 		return 0;
@@ -3780,6 +3788,9 @@ lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba)
 	spin_lock(&phba->nvme_buf_list_put_lock);
 	list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list);
 	list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list);
+	cnt = phba->get_nvme_bufs + phba->put_nvme_bufs;
+	phba->get_nvme_bufs = 0;
+	phba->put_nvme_bufs = 0;
 	spin_unlock(&phba->nvme_buf_list_put_lock);
 	spin_unlock_irq(&phba->nvme_buf_list_get_lock);
 
@@ -3824,6 +3835,7 @@ lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba)
 	spin_lock_irq(&phba->nvme_buf_list_get_lock);
 	spin_lock(&phba->nvme_buf_list_put_lock);
 	list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get);
+	phba->get_nvme_bufs = cnt;
 	INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
 	spin_unlock(&phba->nvme_buf_list_put_lock);
 	spin_unlock_irq(&phba->nvme_buf_list_get_lock);
@@ -5609,8 +5621,10 @@ lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
 		/* Initialize the NVME buffer list used by driver for NVME IO */
 		spin_lock_init(&phba->nvme_buf_list_get_lock);
 		INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get);
+		phba->get_nvme_bufs = 0;
 		spin_lock_init(&phba->nvme_buf_list_put_lock);
 		INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
+		phba->put_nvme_bufs = 0;
 	}
 
 	/* Initialize the fabric iocb list */
@@ -5806,6 +5820,7 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
 	struct lpfc_mqe *mqe;
 	int longs;
 	int fof_vectors = 0;
+	int extra;
 	uint64_t wwn;
 
 	phba->sli4_hba.num_online_cpu = num_online_cpus();
@@ -5860,13 +5875,21 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
 	 */
 
 	/*
+	 * 1 for cmd, 1 for rsp, NVME adds an extra one
+	 * for boundary conditions in its max_sgl_segment template.
+	 */
+	extra = 2;
+	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
+		extra++;
+
+	/*
 	 * It doesn't matter what family our adapter is in, we are
 	 * limited to 2 Pages, 512 SGEs, for our SGL.
 	 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
 	 */
 	max_buf_size = (2 * SLI4_PAGE_SIZE);
-	if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
-		phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
+	if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - extra)
+		phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - extra;
 
 	/*
 	 * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
@@ -5899,14 +5922,14 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
 		 */
 		phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
 				sizeof(struct fcp_rsp) +
-				((phba->cfg_sg_seg_cnt + 2) *
+				((phba->cfg_sg_seg_cnt + extra) *
 				sizeof(struct sli4_sge));
 
 		/* Total SGEs for scsi_sg_list */
-		phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
+		phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
 
 		/*
-		 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only
+		 * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
 		 * need to post 1 page for the SGL.
 		 */
 	}
@@ -5947,9 +5970,6 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
 		INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
 		INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
 		INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
-
-		/* Fast-path XRI aborted CQ Event work queue list */
-		INIT_LIST_HEAD(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue);
 	}
 
 	/* This abort list used by worker thread */
@@ -7936,8 +7956,12 @@ lpfc_sli4_queue_verify(struct lpfc_hba *phba)
 		phba->cfg_fcp_io_channel = io_channel;
 	if (phba->cfg_nvme_io_channel > io_channel)
 		phba->cfg_nvme_io_channel = io_channel;
-	if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq)
-		phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel;
+	if (phba->nvmet_support) {
+		if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq)
+			phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel;
+	}
+	if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
+		phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
 
 	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 			"2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n",
@@ -7958,10 +7982,10 @@ static int
 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx)
 {
 	struct lpfc_queue *qdesc;
-	int cnt;
 
-	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
-					    phba->sli4_hba.cq_ecount);
+	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
+				      phba->sli4_hba.cq_esize,
+				      LPFC_CQE_EXP_COUNT);
 	if (!qdesc) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0508 Failed allocate fast-path NVME CQ (%d)\n",
@@ -7970,8 +7994,8 @@ lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx)
 	}
 	phba->sli4_hba.nvme_cq[wqidx] = qdesc;
 
-	cnt = LPFC_NVME_WQSIZE;
-	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_WQE128_SIZE, cnt);
+	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
+				      LPFC_WQE128_SIZE, LPFC_WQE_EXP_COUNT);
 	if (!qdesc) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0509 Failed allocate fast-path NVME WQ (%d)\n",
@@ -7987,11 +8011,18 @@ static int
 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx)
 {
 	struct lpfc_queue *qdesc;
-	uint32_t wqesize;
 
 	/* Create Fast Path FCP CQs */
-	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
-					phba->sli4_hba.cq_ecount);
+	if (phba->fcp_embed_io)
+		/* Increase the CQ size when WQEs contain an embedded cdb */
+		qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
+					      phba->sli4_hba.cq_esize,
+					      LPFC_CQE_EXP_COUNT);
+
+	else
+		qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
+					      phba->sli4_hba.cq_esize,
+					      phba->sli4_hba.cq_ecount);
 	if (!qdesc) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 			"0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx);
@@ -8000,9 +8031,15 @@ lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx)
 	phba->sli4_hba.fcp_cq[wqidx] = qdesc;
 
 	/* Create Fast Path FCP WQs */
-	wqesize = (phba->fcp_embed_io) ?
-		LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
-	qdesc = lpfc_sli4_queue_alloc(phba, wqesize, phba->sli4_hba.wq_ecount);
+	if (phba->fcp_embed_io)
+		/* Increase the WQ size when WQEs contain an embedded cdb */
+		qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
+					      LPFC_WQE128_SIZE,
+					      LPFC_WQE_EXP_COUNT);
+	else
+		qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
+					      phba->sli4_hba.wq_esize,
+					      phba->sli4_hba.wq_ecount);
 	if (!qdesc) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0503 Failed allocate fast-path FCP WQ (%d)\n",
@@ -8173,7 +8210,8 @@ lpfc_sli4_queue_create(struct lpfc_hba *phba)
 	/* Create HBA Event Queues (EQs) */
 	for (idx = 0; idx < io_channel; idx++) {
 		/* Create EQs */
-		qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
+		qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
+					      phba->sli4_hba.eq_esize,
 					      phba->sli4_hba.eq_ecount);
 		if (!qdesc) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
@@ -8196,8 +8234,9 @@ lpfc_sli4_queue_create(struct lpfc_hba *phba)
 	if (phba->nvmet_support) {
 		for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
 			qdesc = lpfc_sli4_queue_alloc(phba,
-					phba->sli4_hba.cq_esize,
-					phba->sli4_hba.cq_ecount);
+						      LPFC_DEFAULT_PAGE_SIZE,
+						      phba->sli4_hba.cq_esize,
+						      phba->sli4_hba.cq_ecount);
 			if (!qdesc) {
 				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 					"3142 Failed allocate NVME "
@@ -8213,7 +8252,8 @@ lpfc_sli4_queue_create(struct lpfc_hba *phba)
 	 */
 
 	/* Create slow-path Mailbox Command Complete Queue */
-	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
+	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
+				      phba->sli4_hba.cq_esize,
 				      phba->sli4_hba.cq_ecount);
 	if (!qdesc) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
@@ -8223,7 +8263,8 @@ lpfc_sli4_queue_create(struct lpfc_hba *phba)
 	phba->sli4_hba.mbx_cq = qdesc;
 
 	/* Create slow-path ELS Complete Queue */
-	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
+	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
+				      phba->sli4_hba.cq_esize,
 				      phba->sli4_hba.cq_ecount);
 	if (!qdesc) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
@@ -8239,7 +8280,8 @@ lpfc_sli4_queue_create(struct lpfc_hba *phba)
 
 	/* Create Mailbox Command Queue */
 
-	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
+	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
+				      phba->sli4_hba.mq_esize,
 				      phba->sli4_hba.mq_ecount);
 	if (!qdesc) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
@@ -8253,7 +8295,8 @@ lpfc_sli4_queue_create(struct lpfc_hba *phba)
 	 */
 
 	/* Create slow-path ELS Work Queue */
-	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
+	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
+				      phba->sli4_hba.wq_esize,
 				      phba->sli4_hba.wq_ecount);
 	if (!qdesc) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
@@ -8265,7 +8308,8 @@ lpfc_sli4_queue_create(struct lpfc_hba *phba)
 
 	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
 		/* Create NVME LS Complete Queue */
-		qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
+		qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
+					      phba->sli4_hba.cq_esize,
 					      phba->sli4_hba.cq_ecount);
 		if (!qdesc) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
@@ -8275,7 +8319,8 @@ lpfc_sli4_queue_create(struct lpfc_hba *phba)
 		phba->sli4_hba.nvmels_cq = qdesc;
 
 		/* Create NVME LS Work Queue */
-		qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
+		qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
+					      phba->sli4_hba.wq_esize,
 					      phba->sli4_hba.wq_ecount);
 		if (!qdesc) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
@@ -8291,7 +8336,8 @@ lpfc_sli4_queue_create(struct lpfc_hba *phba)
 	 */
 
 	/* Create Receive Queue for header */
-	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
+	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
+				      phba->sli4_hba.rq_esize,
 				      phba->sli4_hba.rq_ecount);
 	if (!qdesc) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
@@ -8301,7 +8347,8 @@ lpfc_sli4_queue_create(struct lpfc_hba *phba)
 	phba->sli4_hba.hdr_rq = qdesc;
 
 	/* Create Receive Queue for data */
-	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
+	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
+				      phba->sli4_hba.rq_esize,
 				      phba->sli4_hba.rq_ecount);
 	if (!qdesc) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
@@ -8314,6 +8361,7 @@ lpfc_sli4_queue_create(struct lpfc_hba *phba)
 		for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
 			/* Create NVMET Receive Queue for header */
 			qdesc = lpfc_sli4_queue_alloc(phba,
+						      LPFC_DEFAULT_PAGE_SIZE,
 						      phba->sli4_hba.rq_esize,
 						      LPFC_NVMET_RQE_DEF_COUNT);
 			if (!qdesc) {
@@ -8339,6 +8387,7 @@ lpfc_sli4_queue_create(struct lpfc_hba *phba)
 
 			/* Create NVMET Receive Queue for data */
 			qdesc = lpfc_sli4_queue_alloc(phba,
+						      LPFC_DEFAULT_PAGE_SIZE,
 						      phba->sli4_hba.rq_esize,
 						      LPFC_NVMET_RQE_DEF_COUNT);
 			if (!qdesc) {
@@ -8437,13 +8486,15 @@ lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
 	/* Release NVME CQ mapping array */
 	lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map);
 
-	lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
-					phba->cfg_nvmet_mrq);
+	if (phba->nvmet_support) {
+		lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
+					 phba->cfg_nvmet_mrq);
 
-	lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
-					phba->cfg_nvmet_mrq);
-	lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
-					phba->cfg_nvmet_mrq);
+		lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
+					 phba->cfg_nvmet_mrq);
+		lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
+					 phba->cfg_nvmet_mrq);
+	}
 
 	/* Release mailbox command work queue */
 	__lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
@@ -8514,6 +8565,7 @@ lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
 			qidx, (uint32_t)rc);
 		return rc;
 	}
+	cq->chann = qidx;
 
 	if (qtype != LPFC_MBOX) {
 		/* Setup nvme_cq_map for fast lookup */
@@ -8533,6 +8585,7 @@ lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
 			/* no need to tear down cq - caller will do so */
 			return rc;
 		}
+		wq->chann = qidx;
 
 		/* Bind this CQ/WQ to the NVME ring */
 		pring = wq->pring;
@@ -8773,6 +8826,8 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba)
 						"rc = 0x%x\n", (uint32_t)rc);
 				goto out_destroy;
 			}
+			phba->sli4_hba.nvmet_cqset[0]->chann = 0;
+
 			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 					"6090 NVMET CQ setup: cq-id=%d, "
 					"parent eq-id=%d\n",
@@ -8994,19 +9049,22 @@ lpfc_sli4_queue_unset(struct lpfc_hba *phba)
 		for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
 			lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]);
 
-	/* Unset NVMET MRQ queue */
-	if (phba->sli4_hba.nvmet_mrq_hdr) {
-		for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
-			lpfc_rq_destroy(phba,
+	if (phba->nvmet_support) {
+		/* Unset NVMET MRQ queue */
+		if (phba->sli4_hba.nvmet_mrq_hdr) {
+			for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
+				lpfc_rq_destroy(
+					phba,
 					phba->sli4_hba.nvmet_mrq_hdr[qidx],
 					phba->sli4_hba.nvmet_mrq_data[qidx]);
-	}
+		}
 
-	/* Unset NVMET CQ Set complete queue */
-	if (phba->sli4_hba.nvmet_cqset) {
-		for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
-			lpfc_cq_destroy(phba,
-					phba->sli4_hba.nvmet_cqset[qidx]);
+		/* Unset NVMET CQ Set complete queue */
+		if (phba->sli4_hba.nvmet_cqset) {
+			for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
+				lpfc_cq_destroy(
+					phba, phba->sli4_hba.nvmet_cqset[qidx]);
+		}
 	}
 
 	/* Unset FCP response complete queue */
@@ -9175,11 +9233,6 @@ lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
 	/* Pending ELS XRI abort events */
 	list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
 			 &cqelist);
-	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
-		/* Pending NVME XRI abort events */
-		list_splice_init(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue,
-				 &cqelist);
-	}
 	/* Pending asynnc events */
 	list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
 			 &cqelist);
@@ -9421,44 +9474,62 @@ lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
 		lpfc_sli4_bar0_register_memmap(phba, if_type);
 	}
 
-	if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
-	    (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
-		/*
-		 * Map SLI4 if type 0 HBA Control Register base to a kernel
-		 * virtual address and setup the registers.
-		 */
-		phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
-		bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
-		phba->sli4_hba.ctrl_regs_memmap_p =
-				ioremap(phba->pci_bar1_map, bar1map_len);
-		if (!phba->sli4_hba.ctrl_regs_memmap_p) {
-			dev_printk(KERN_ERR, &pdev->dev,
-			   "ioremap failed for SLI4 HBA control registers.\n");
+	if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
+		if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
+			/*
+			 * Map SLI4 if type 0 HBA Control Register base to a
+			 * kernel virtual address and setup the registers.
+			 */
+			phba->pci_bar1_map = pci_resource_start(pdev,
+								PCI_64BIT_BAR2);
+			bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
+			phba->sli4_hba.ctrl_regs_memmap_p =
+					ioremap(phba->pci_bar1_map,
+						bar1map_len);
+			if (!phba->sli4_hba.ctrl_regs_memmap_p) {
+				dev_err(&pdev->dev,
+					   "ioremap failed for SLI4 HBA "
+					    "control registers.\n");
+				error = -ENOMEM;
+				goto out_iounmap_conf;
+			}
+			phba->pci_bar2_memmap_p =
+					 phba->sli4_hba.ctrl_regs_memmap_p;
+			lpfc_sli4_bar1_register_memmap(phba);
+		} else {
+			error = -ENOMEM;
 			goto out_iounmap_conf;
 		}
-		phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
-		lpfc_sli4_bar1_register_memmap(phba);
 	}
 
-	if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
-	    (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
-		/*
-		 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
-		 * virtual address and setup the registers.
-		 */
-		phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
-		bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
-		phba->sli4_hba.drbl_regs_memmap_p =
-				ioremap(phba->pci_bar2_map, bar2map_len);
-		if (!phba->sli4_hba.drbl_regs_memmap_p) {
-			dev_printk(KERN_ERR, &pdev->dev,
-			   "ioremap failed for SLI4 HBA doorbell registers.\n");
-			goto out_iounmap_ctrl;
-		}
-		phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
-		error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
-		if (error)
+	if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
+		if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
+			/*
+			 * Map SLI4 if type 0 HBA Doorbell Register base to
+			 * a kernel virtual address and setup the registers.
+			 */
+			phba->pci_bar2_map = pci_resource_start(pdev,
+								PCI_64BIT_BAR4);
+			bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
+			phba->sli4_hba.drbl_regs_memmap_p =
+					ioremap(phba->pci_bar2_map,
+						bar2map_len);
+			if (!phba->sli4_hba.drbl_regs_memmap_p) {
+				dev_err(&pdev->dev,
+					   "ioremap failed for SLI4 HBA"
+					   " doorbell registers.\n");
+				error = -ENOMEM;
+				goto out_iounmap_ctrl;
+			}
+			phba->pci_bar4_memmap_p =
+					phba->sli4_hba.drbl_regs_memmap_p;
+			error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
+			if (error)
+				goto out_iounmap_all;
+		} else {
+			error = -ENOMEM;
 			goto out_iounmap_all;
+		}
 	}
 
 	return 0;
@@ -10093,6 +10164,16 @@ lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
 	int fcp_xri_cmpl = 1;
 	int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
 
+	/* Driver just aborted IOs during the hba_unset process.  Pause
+	 * here to give the HBA time to complete the IO and get entries
+	 * into the abts lists.
+	 */
+	msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
+
+	/* Wait for NVME pending IO to flush back to transport. */
+	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
+		lpfc_nvme_wait_for_io_drain(phba);
+
 	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
 		fcp_xri_cmpl =
 			list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
@@ -10369,7 +10450,7 @@ lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
 	    !phba->nvme_support) {
 		phba->nvme_support = 0;
 		phba->nvmet_support = 0;
-		phba->cfg_nvmet_mrq = 0;
+		phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_OFF;
 		phba->cfg_nvme_io_channel = 0;
 		phba->io_channel_irqs = phba->cfg_fcp_io_channel;
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
@@ -11616,6 +11697,10 @@ lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
 	/* Flush all driver's outstanding SCSI I/Os as we are to reset */
 	lpfc_sli_flush_fcp_rings(phba);
 
+	/* Flush the outstanding NVME IOs if fc4 type enabled. */
+	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
+		lpfc_sli_flush_nvme_rings(phba);
+
 	/* stop all timers */
 	lpfc_stop_hba_timers(phba);
 
@@ -11647,6 +11732,10 @@ lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
 
 	/* Clean up all driver's outstanding SCSI I/Os */
 	lpfc_sli_flush_fcp_rings(phba);
+
+	/* Flush the outstanding NVME IOs if fc4 type enabled. */
+	if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
+		lpfc_sli_flush_nvme_rings(phba);
 }
 
 /**
@@ -12138,10 +12227,10 @@ int
 lpfc_fof_queue_create(struct lpfc_hba *phba)
 {
 	struct lpfc_queue *qdesc;
-	uint32_t wqesize;
 
 	/* Create FOF EQ */
-	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
+	qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
+				      phba->sli4_hba.eq_esize,
 				      phba->sli4_hba.eq_ecount);
 	if (!qdesc)
 		goto out_error;
@@ -12151,7 +12240,15 @@ lpfc_fof_queue_create(struct lpfc_hba *phba)
 	if (phba->cfg_fof) {
 
 		/* Create OAS CQ */
-		qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
+		if (phba->fcp_embed_io)
+			qdesc = lpfc_sli4_queue_alloc(phba,
+						      LPFC_EXPANDED_PAGE_SIZE,
+						      phba->sli4_hba.cq_esize,
+						      LPFC_CQE_EXP_COUNT);
+		else
+			qdesc = lpfc_sli4_queue_alloc(phba,
+						      LPFC_DEFAULT_PAGE_SIZE,
+						      phba->sli4_hba.cq_esize,
 						      phba->sli4_hba.cq_ecount);
 		if (!qdesc)
 			goto out_error;
@@ -12159,11 +12256,16 @@ lpfc_fof_queue_create(struct lpfc_hba *phba)
 		phba->sli4_hba.oas_cq = qdesc;
 
 		/* Create OAS WQ */
-		wqesize = (phba->fcp_embed_io) ?
-				LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
-		qdesc = lpfc_sli4_queue_alloc(phba, wqesize,
-					      phba->sli4_hba.wq_ecount);
-
+		if (phba->fcp_embed_io)
+			qdesc = lpfc_sli4_queue_alloc(phba,
+						      LPFC_EXPANDED_PAGE_SIZE,
+						      LPFC_WQE128_SIZE,
+						      LPFC_WQE_EXP_COUNT);
+		else
+			qdesc = lpfc_sli4_queue_alloc(phba,
+						      LPFC_DEFAULT_PAGE_SIZE,
+						      phba->sli4_hba.wq_esize,
+						      phba->sli4_hba.wq_ecount);
 		if (!qdesc)
 			goto out_error;
 
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index b6957d944b9a..d841aa42f607 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -390,6 +390,11 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 		break;
 	}
 
+	ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
+	ndlp->nlp_type &= ~(NLP_NVME_TARGET | NLP_NVME_INITIATOR);
+	ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
+	ndlp->nlp_flag &= ~NLP_FIRSTBURST;
+
 	/* Check for Nport to NPort pt2pt protocol */
 	if ((vport->fc_flag & FC_PT2PT) &&
 	    !(vport->fc_flag & FC_PT2PT_PLOGI)) {
@@ -727,6 +732,41 @@ out:
 	return 0;
 }
 
+static uint32_t
+lpfc_rcv_prli_support_check(struct lpfc_vport *vport,
+			    struct lpfc_nodelist *ndlp,
+			    struct lpfc_iocbq *cmdiocb)
+{
+	struct ls_rjt stat;
+	uint32_t *payload;
+	uint32_t cmd;
+
+	payload = ((struct lpfc_dmabuf *)cmdiocb->context2)->virt;
+	cmd = *payload;
+	if (vport->phba->nvmet_support) {
+		/* Must be a NVME PRLI */
+		if (cmd ==  ELS_CMD_PRLI)
+			goto out;
+	} else {
+		/* Initiator mode. */
+		if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI))
+			goto out;
+	}
+	return 1;
+out:
+	lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME_DISC,
+			 "6115 Rcv PRLI (%x) check failed: ndlp rpi %d "
+			 "state x%x flags x%x\n",
+			 cmd, ndlp->nlp_rpi, ndlp->nlp_state,
+			 ndlp->nlp_flag);
+	memset(&stat, 0, sizeof(struct ls_rjt));
+	stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED;
+	stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED;
+	lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
+			    ndlp, NULL);
+	return 0;
+}
+
 static void
 lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	      struct lpfc_iocbq *cmdiocb)
@@ -742,9 +782,6 @@ lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	lp = (uint32_t *) pcmd->virt;
 	npr = (PRLI *) ((uint8_t *) lp + sizeof (uint32_t));
 
-	ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
-	ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
-	ndlp->nlp_flag &= ~NLP_FIRSTBURST;
 	if ((npr->prliType == PRLI_FCP_TYPE) ||
 	    (npr->prliType == PRLI_NVME_TYPE)) {
 		if (npr->initiatorFunc) {
@@ -769,8 +806,12 @@ lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 		 * type.  Target mode does not issue gft_id so doesn't get
 		 * the fc4 type set until now.
 		 */
-		if ((phba->nvmet_support) && (npr->prliType == PRLI_NVME_TYPE))
+		if (phba->nvmet_support && (npr->prliType == PRLI_NVME_TYPE)) {
 			ndlp->nlp_fc4_type |= NLP_FC4_NVME;
+			lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
+		}
+		if (npr->prliType == PRLI_FCP_TYPE)
+			ndlp->nlp_fc4_type |= NLP_FC4_FCP;
 	}
 	if (rport) {
 		/* We need to update the rport role values */
@@ -1373,7 +1414,8 @@ lpfc_rcv_prli_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 {
 	struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
 
-	lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
+	if (lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb))
+		lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
 	return ndlp->nlp_state;
 }
 
@@ -1544,6 +1586,9 @@ lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
 	struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
 	struct ls_rjt     stat;
 
+	if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb)) {
+		return ndlp->nlp_state;
+	}
 	if (vport->phba->nvmet_support) {
 		/* NVME Target mode.  Handle and respond to the PRLI and
 		 * transition to UNMAPPED provided the RPI has completed
@@ -1552,28 +1597,22 @@ lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
 		if (ndlp->nlp_flag & NLP_RPI_REGISTERED) {
 			lpfc_rcv_prli(vport, ndlp, cmdiocb);
 			lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
-			lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
 		} else {
 			/* RPI registration has not completed. Reject the PRLI
 			 * to prevent an illegal state transition when the
 			 * rpi registration does complete.
 			 */
-			lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME_DISC,
-					 "6115 NVMET ndlp rpi %d state "
-					 "unknown, state x%x flags x%08x\n",
-					 ndlp->nlp_rpi, ndlp->nlp_state,
-					 ndlp->nlp_flag);
 			memset(&stat, 0, sizeof(struct ls_rjt));
-			stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
-			stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
+			stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
+			stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
 			lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
 					    ndlp, NULL);
+			return ndlp->nlp_state;
 		}
 	} else {
 		/* Initiator mode. */
 		lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
 	}
-
 	return ndlp->nlp_state;
 }
 
@@ -1819,6 +1858,8 @@ lpfc_rcv_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 {
 	struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
 
+	if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb))
+		return ndlp->nlp_state;
 	lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
 	return ndlp->nlp_state;
 }
@@ -1922,13 +1963,6 @@ lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 		return ndlp->nlp_state;
 	}
 
-	/* Check out PRLI rsp */
-	ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
-	ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
-
-	/* NVME or FCP first burst must be negotiated for each PRLI. */
-	ndlp->nlp_flag &= ~NLP_FIRSTBURST;
-	ndlp->nvme_fb_size = 0;
 	if (npr && (npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
 	    (npr->prliType == PRLI_FCP_TYPE)) {
 		lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
@@ -1945,8 +1979,6 @@ lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 		if (npr->Retry)
 			ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
 
-		/* PRLI completed.  Decrement count. */
-		ndlp->fc4_prli_sent--;
 	} else if (nvpr &&
 		   (bf_get_be32(prli_acc_rsp_code, nvpr) ==
 		    PRLI_REQ_EXECUTED) &&
@@ -1991,8 +2023,6 @@ lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 				 be32_to_cpu(nvpr->word5),
 				 ndlp->nlp_flag, ndlp->nlp_fcp_info,
 				 ndlp->nlp_type);
-		/* PRLI completed.  Decrement count. */
-		ndlp->fc4_prli_sent--;
 	}
 	if (!(ndlp->nlp_type & NLP_FCP_TARGET) &&
 	    (vport->port_type == LPFC_NPIV_PORT) &&
@@ -2016,7 +2046,8 @@ out_err:
 		ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
 		if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET))
 			lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
-		else
+		else if (ndlp->nlp_type &
+			 (NLP_FCP_INITIATOR | NLP_NVME_INITIATOR))
 			lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
 	} else
 		lpfc_printf_vlog(vport,
@@ -2241,6 +2272,9 @@ lpfc_rcv_prli_unmap_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 {
 	struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
 
+	if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb))
+		return ndlp->nlp_state;
+
 	lpfc_rcv_prli(vport, ndlp, cmdiocb);
 	lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
 	return ndlp->nlp_state;
@@ -2310,6 +2344,8 @@ lpfc_rcv_prli_mapped_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 {
 	struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
 
+	if (!lpfc_rcv_prli_support_check(vport, ndlp, cmdiocb))
+		return ndlp->nlp_state;
 	lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
 	return ndlp->nlp_state;
 }
diff --git a/drivers/scsi/lpfc/lpfc_nvme.c b/drivers/scsi/lpfc/lpfc_nvme.c
index 517ae570e507..81e3a4f10c3c 100644
--- a/drivers/scsi/lpfc/lpfc_nvme.c
+++ b/drivers/scsi/lpfc/lpfc_nvme.c
@@ -57,11 +57,13 @@
 /* NVME initiator-based functions */
 
 static struct lpfc_nvme_buf *
-lpfc_get_nvme_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp);
+lpfc_get_nvme_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
+		  int expedite);
 
 static void
 lpfc_release_nvme_buf(struct lpfc_hba *, struct lpfc_nvme_buf *);
 
+static struct nvme_fc_port_template lpfc_nvme_template;
 
 /**
  * lpfc_nvme_create_queue -
@@ -88,6 +90,9 @@ lpfc_nvme_create_queue(struct nvme_fc_local_port *pnvme_lport,
 	struct lpfc_nvme_qhandle *qhandle;
 	char *str;
 
+	if (!pnvme_lport->private)
+		return -ENOMEM;
+
 	lport = (struct lpfc_nvme_lport *)pnvme_lport->private;
 	vport = lport->vport;
 	qhandle = kzalloc(sizeof(struct lpfc_nvme_qhandle), GFP_KERNEL);
@@ -140,6 +145,9 @@ lpfc_nvme_delete_queue(struct nvme_fc_local_port *pnvme_lport,
 	struct lpfc_nvme_lport *lport;
 	struct lpfc_vport *vport;
 
+	if (!pnvme_lport->private)
+		return;
+
 	lport = (struct lpfc_nvme_lport *)pnvme_lport->private;
 	vport = lport->vport;
 
@@ -154,6 +162,10 @@ lpfc_nvme_localport_delete(struct nvme_fc_local_port *localport)
 {
 	struct lpfc_nvme_lport *lport = localport->private;
 
+	lpfc_printf_vlog(lport->vport, KERN_INFO, LOG_NVME,
+			 "6173 localport %p delete complete\n",
+			 lport);
+
 	/* release any threads waiting for the unreg to complete */
 	complete(&lport->lport_unreg_done);
 }
@@ -189,16 +201,19 @@ lpfc_nvme_remoteport_delete(struct nvme_fc_remote_port *remoteport)
 	 * calling state machine to remove the node.
 	 */
 	lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
-			"6146 remoteport delete complete %p\n",
+			"6146 remoteport delete of remoteport %p\n",
 			remoteport);
+	spin_lock_irq(&vport->phba->hbalock);
 	ndlp->nrport = NULL;
+	spin_unlock_irq(&vport->phba->hbalock);
+
+	/* Remove original register reference. The host transport
+	 * won't reference this rport/remoteport any further.
+	 */
 	lpfc_nlp_put(ndlp);
 
  rport_err:
-	/* This call has to execute as long as the rport is valid.
-	 * Release any threads waiting for the unreg to complete.
-	 */
-	complete(&rport->rport_unreg_done);
+	return;
 }
 
 static void
@@ -206,6 +221,7 @@ lpfc_nvme_cmpl_gen_req(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
 		       struct lpfc_wcqe_complete *wcqe)
 {
 	struct lpfc_vport *vport = cmdwqe->vport;
+	struct lpfc_nvme_lport *lport;
 	uint32_t status;
 	struct nvmefc_ls_req *pnvme_lsreq;
 	struct lpfc_dmabuf *buf_ptr;
@@ -215,6 +231,13 @@ lpfc_nvme_cmpl_gen_req(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
 
 	pnvme_lsreq = (struct nvmefc_ls_req *)cmdwqe->context2;
 	status = bf_get(lpfc_wcqe_c_status, wcqe) & LPFC_IOCB_STATUS_MASK;
+	if (status) {
+		lport = (struct lpfc_nvme_lport *)vport->localport->private;
+		if (bf_get(lpfc_wcqe_c_xb, wcqe))
+			atomic_inc(&lport->cmpl_ls_xb);
+		atomic_inc(&lport->cmpl_ls_err);
+	}
+
 	ndlp = (struct lpfc_nodelist *)cmdwqe->context1;
 	lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
 			 "6047 nvme cmpl Enter "
@@ -419,6 +442,9 @@ lpfc_nvme_ls_req(struct nvme_fc_local_port *pnvme_lport,
 	if (vport->load_flag & FC_UNLOADING)
 		return -ENODEV;
 
+	if (vport->load_flag & FC_UNLOADING)
+		return -ENODEV;
+
 	ndlp = lpfc_findnode_did(vport, pnvme_rport->port_id);
 	if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
 		lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE | LOG_NVME_IOERR,
@@ -490,6 +516,7 @@ lpfc_nvme_ls_req(struct nvme_fc_local_port *pnvme_lport,
 				pnvme_lsreq, lpfc_nvme_cmpl_gen_req,
 				ndlp, 2, 30, 0);
 	if (ret != WQE_SUCCESS) {
+		atomic_inc(&lport->xmt_ls_err);
 		lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
 				 "6052 EXIT. issue ls wqe failed lport %p, "
 				 "rport %p lsreq%p Status %x DID %x\n",
@@ -534,6 +561,9 @@ lpfc_nvme_ls_abort(struct nvme_fc_local_port *pnvme_lport,
 	vport = lport->vport;
 	phba = vport->phba;
 
+	if (vport->load_flag & FC_UNLOADING)
+		return;
+
 	ndlp = lpfc_findnode_did(vport, pnvme_rport->port_id);
 	if (!ndlp) {
 		lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_ABTS,
@@ -571,6 +601,7 @@ lpfc_nvme_ls_abort(struct nvme_fc_local_port *pnvme_lport,
 
 	/* Abort the targeted IOs and remove them from the abort list. */
 	list_for_each_entry_safe(wqe, next_wqe, &abort_list, dlist) {
+		atomic_inc(&lport->xmt_ls_abort);
 		spin_lock_irq(&phba->hbalock);
 		list_del_init(&wqe->dlist);
 		lpfc_sli_issue_abort_iotag(phba, pring, wqe);
@@ -774,8 +805,9 @@ lpfc_nvme_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn,
 	struct lpfc_nvme_rport *rport;
 	struct lpfc_nodelist *ndlp;
 	struct lpfc_nvme_fcpreq_priv *freqpriv;
+	struct lpfc_nvme_lport *lport;
 	unsigned long flags;
-	uint32_t code;
+	uint32_t code, status;
 	uint16_t cid, sqhd, data;
 	uint32_t *ptr;
 
@@ -790,10 +822,17 @@ lpfc_nvme_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn,
 
 	nCmd = lpfc_ncmd->nvmeCmd;
 	rport = lpfc_ncmd->nrport;
+	status = bf_get(lpfc_wcqe_c_status, wcqe);
+	if (status) {
+		lport = (struct lpfc_nvme_lport *)vport->localport->private;
+		if (bf_get(lpfc_wcqe_c_xb, wcqe))
+			atomic_inc(&lport->cmpl_fcp_xb);
+		atomic_inc(&lport->cmpl_fcp_err);
+	}
 
 	lpfc_nvmeio_data(phba, "NVME FCP CMPL: xri x%x stat x%x parm x%x\n",
 			 lpfc_ncmd->cur_iocbq.sli4_xritag,
-			 bf_get(lpfc_wcqe_c_status, wcqe), wcqe->parameter);
+			 status, wcqe->parameter);
 	/*
 	 * Catch race where our node has transitioned, but the
 	 * transport is still transitioning.
@@ -851,8 +890,7 @@ lpfc_nvme_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn,
 		nCmd->rcv_rsplen = LPFC_NVME_ERSP_LEN;
 		nCmd->transferred_length = nCmd->payload_length;
 	} else {
-		lpfc_ncmd->status = (bf_get(lpfc_wcqe_c_status, wcqe) &
-			    LPFC_IOCB_STATUS_MASK);
+		lpfc_ncmd->status = (status & LPFC_IOCB_STATUS_MASK);
 		lpfc_ncmd->result = (wcqe->parameter & IOERR_PARAM_MASK);
 
 		/* For NVME, the only failure path that results in an
@@ -946,10 +984,13 @@ out_err:
 	freqpriv->nvme_buf = NULL;
 
 	/* NVME targets need completion held off until the abort exchange
-	 * completes.
+	 * completes unless the NVME Rport is getting unregistered.
 	 */
-	if (!(lpfc_ncmd->flags & LPFC_SBUF_XBUSY))
+
+	if (!(lpfc_ncmd->flags & LPFC_SBUF_XBUSY)) {
 		nCmd->done(nCmd);
+		lpfc_ncmd->nvmeCmd = NULL;
+	}
 
 	spin_lock_irqsave(&phba->hbalock, flags);
 	lpfc_ncmd->nrport = NULL;
@@ -1149,7 +1190,7 @@ lpfc_nvme_prep_io_dma(struct lpfc_vport *vport,
 
 		first_data_sgl = sgl;
 		lpfc_ncmd->seg_cnt = nCmd->sg_cnt;
-		if (lpfc_ncmd->seg_cnt > phba->cfg_nvme_seg_cnt + 1) {
+		if (lpfc_ncmd->seg_cnt > lpfc_nvme_template.max_sgl_segments) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
 					"6058 Too many sg segments from "
 					"NVME Transport.  Max %d, "
@@ -1239,6 +1280,7 @@ lpfc_nvme_fcp_io_submit(struct nvme_fc_local_port *pnvme_lport,
 			struct nvmefc_fcp_req *pnvme_fcreq)
 {
 	int ret = 0;
+	int expedite = 0;
 	struct lpfc_nvme_lport *lport;
 	struct lpfc_vport *vport;
 	struct lpfc_hba *phba;
@@ -1246,13 +1288,30 @@ lpfc_nvme_fcp_io_submit(struct nvme_fc_local_port *pnvme_lport,
 	struct lpfc_nvme_buf *lpfc_ncmd;
 	struct lpfc_nvme_rport *rport;
 	struct lpfc_nvme_qhandle *lpfc_queue_info;
-	struct lpfc_nvme_fcpreq_priv *freqpriv = pnvme_fcreq->private;
+	struct lpfc_nvme_fcpreq_priv *freqpriv;
+	struct nvme_common_command *sqe;
 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
 	uint64_t start = 0;
 #endif
 
+	/* Validate pointers. LLDD fault handling with transport does
+	 * have timing races.
+	 */
 	lport = (struct lpfc_nvme_lport *)pnvme_lport->private;
+	if (unlikely(!lport)) {
+		ret = -EINVAL;
+		goto out_fail;
+	}
+
 	vport = lport->vport;
+
+	if (unlikely(!hw_queue_handle)) {
+		lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_ABTS,
+				 "6129 Fail Abort, NULL hw_queue_handle\n");
+		ret = -EINVAL;
+		goto out_fail;
+	}
+
 	phba = vport->phba;
 
 	if (vport->load_flag & FC_UNLOADING) {
@@ -1260,16 +1319,17 @@ lpfc_nvme_fcp_io_submit(struct nvme_fc_local_port *pnvme_lport,
 		goto out_fail;
 	}
 
-	/* Validate pointers. */
-	if (!pnvme_lport || !pnvme_rport || !freqpriv) {
-		lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR | LOG_NODE,
-				 "6117 No Send:IO submit ptrs NULL, lport %p, "
-				 "rport %p fcreq_priv %p\n",
-				 pnvme_lport, pnvme_rport, freqpriv);
+	if (vport->load_flag & FC_UNLOADING) {
 		ret = -ENODEV;
 		goto out_fail;
 	}
 
+	freqpriv = pnvme_fcreq->private;
+	if (unlikely(!freqpriv)) {
+		ret = -EINVAL;
+		goto out_fail;
+	}
+
 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
 	if (phba->ktime_on)
 		start = ktime_get_ns();
@@ -1293,6 +1353,7 @@ lpfc_nvme_fcp_io_submit(struct nvme_fc_local_port *pnvme_lport,
 			lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_IOERR,
 					 "6066 Missing node for DID %x\n",
 					 pnvme_rport->port_id);
+			atomic_inc(&lport->xmt_fcp_bad_ndlp);
 			ret = -ENODEV;
 			goto out_fail;
 		}
@@ -1306,21 +1367,36 @@ lpfc_nvme_fcp_io_submit(struct nvme_fc_local_port *pnvme_lport,
 				 "IO. State x%x, Type x%x\n",
 				 rport, pnvme_rport->port_id,
 				 ndlp->nlp_state, ndlp->nlp_type);
+		atomic_inc(&lport->xmt_fcp_bad_ndlp);
 		ret = -ENODEV;
 		goto out_fail;
 
 	}
 
+	/* Currently only NVME Keep alive commands should be expedited
+	 * if the driver runs out of a resource. These should only be
+	 * issued on the admin queue, qidx 0
+	 */
+	if (!lpfc_queue_info->qidx && !pnvme_fcreq->sg_cnt) {
+		sqe = &((struct nvme_fc_cmd_iu *)
+			pnvme_fcreq->cmdaddr)->sqe.common;
+		if (sqe->opcode == nvme_admin_keep_alive)
+			expedite = 1;
+	}
+
 	/* The node is shared with FCP IO, make sure the IO pending count does
 	 * not exceed the programmed depth.
 	 */
-	if (atomic_read(&ndlp->cmd_pending) >= ndlp->cmd_qdepth) {
+	if ((atomic_read(&ndlp->cmd_pending) >= ndlp->cmd_qdepth) &&
+	    !expedite) {
+		atomic_inc(&lport->xmt_fcp_qdepth);
 		ret = -EBUSY;
 		goto out_fail;
 	}
 
-	lpfc_ncmd = lpfc_get_nvme_buf(phba, ndlp);
+	lpfc_ncmd = lpfc_get_nvme_buf(phba, ndlp, expedite);
 	if (lpfc_ncmd == NULL) {
+		atomic_inc(&lport->xmt_fcp_noxri);
 		lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR,
 				 "6065 driver's buffer pool is empty, "
 				 "IO failed\n");
@@ -1373,6 +1449,7 @@ lpfc_nvme_fcp_io_submit(struct nvme_fc_local_port *pnvme_lport,
 
 	ret = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, &lpfc_ncmd->cur_iocbq);
 	if (ret) {
+		atomic_inc(&lport->xmt_fcp_wqerr);
 		atomic_dec(&ndlp->cmd_pending);
 		lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR,
 				 "6113 FCP could not issue WQE err %x "
@@ -1473,19 +1550,36 @@ lpfc_nvme_fcp_abort(struct nvme_fc_local_port *pnvme_lport,
 	struct lpfc_nvme_lport *lport;
 	struct lpfc_vport *vport;
 	struct lpfc_hba *phba;
-	struct lpfc_nvme_rport *rport;
 	struct lpfc_nvme_buf *lpfc_nbuf;
 	struct lpfc_iocbq *abts_buf;
 	struct lpfc_iocbq *nvmereq_wqe;
-	struct lpfc_nvme_fcpreq_priv *freqpriv = pnvme_fcreq->private;
+	struct lpfc_nvme_fcpreq_priv *freqpriv;
 	union lpfc_wqe *abts_wqe;
 	unsigned long flags;
 	int ret_val;
 
+	/* Validate pointers. LLDD fault handling with transport does
+	 * have timing races.
+	 */
 	lport = (struct lpfc_nvme_lport *)pnvme_lport->private;
-	rport = (struct lpfc_nvme_rport *)pnvme_rport->private;
+	if (unlikely(!lport))
+		return;
+
 	vport = lport->vport;
+
+	if (unlikely(!hw_queue_handle)) {
+		lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_ABTS,
+				 "6129 Fail Abort, HW Queue Handle NULL.\n");
+		return;
+	}
+
 	phba = vport->phba;
+	freqpriv = pnvme_fcreq->private;
+
+	if (unlikely(!freqpriv))
+		return;
+	if (vport->load_flag & FC_UNLOADING)
+		return;
 
 	/* Announce entry to new IO submit field. */
 	lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_ABTS,
@@ -1552,6 +1646,7 @@ lpfc_nvme_fcp_abort(struct nvme_fc_local_port *pnvme_lport,
 		return;
 	}
 
+	atomic_inc(&lport->xmt_fcp_abort);
 	lpfc_nvmeio_data(phba, "NVME FCP ABORT: xri x%x idx %d to %06x\n",
 			 nvmereq_wqe->sli4_xritag,
 			 nvmereq_wqe->hba_wqidx, pnvme_rport->port_id);
@@ -1931,6 +2026,8 @@ lpfc_repost_nvme_sgl_list(struct lpfc_hba *phba)
 	spin_lock(&phba->nvme_buf_list_put_lock);
 	list_splice_init(&phba->lpfc_nvme_buf_list_get, &post_nblist);
 	list_splice(&phba->lpfc_nvme_buf_list_put, &post_nblist);
+	phba->get_nvme_bufs = 0;
+	phba->put_nvme_bufs = 0;
 	spin_unlock(&phba->nvme_buf_list_put_lock);
 	spin_unlock_irq(&phba->nvme_buf_list_get_lock);
 
@@ -2067,6 +2164,20 @@ lpfc_new_nvme_buf(struct lpfc_vport *vport, int num_to_alloc)
 	return num_posted;
 }
 
+static inline struct lpfc_nvme_buf *
+lpfc_nvme_buf(struct lpfc_hba *phba)
+{
+	struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next;
+
+	list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
+				 &phba->lpfc_nvme_buf_list_get, list) {
+		list_del_init(&lpfc_ncmd->list);
+		phba->get_nvme_bufs--;
+		return lpfc_ncmd;
+	}
+	return NULL;
+}
+
 /**
  * lpfc_get_nvme_buf - Get a nvme buffer from lpfc_nvme_buf_list of the HBA
  * @phba: The HBA for which this call is being executed.
@@ -2079,35 +2190,27 @@ lpfc_new_nvme_buf(struct lpfc_vport *vport, int num_to_alloc)
  *   Pointer to lpfc_nvme_buf - Success
  **/
 static struct lpfc_nvme_buf *
-lpfc_get_nvme_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
+lpfc_get_nvme_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
+		  int expedite)
 {
-	struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next;
+	struct lpfc_nvme_buf *lpfc_ncmd = NULL;
 	unsigned long iflag = 0;
-	int found = 0;
 
 	spin_lock_irqsave(&phba->nvme_buf_list_get_lock, iflag);
-	list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
-				 &phba->lpfc_nvme_buf_list_get, list) {
-		list_del_init(&lpfc_ncmd->list);
-		found = 1;
-		break;
-	}
-	if (!found) {
+	if (phba->get_nvme_bufs > LPFC_NVME_EXPEDITE_XRICNT || expedite)
+		lpfc_ncmd = lpfc_nvme_buf(phba);
+	if (!lpfc_ncmd) {
 		spin_lock(&phba->nvme_buf_list_put_lock);
 		list_splice(&phba->lpfc_nvme_buf_list_put,
 			    &phba->lpfc_nvme_buf_list_get);
+		phba->get_nvme_bufs += phba->put_nvme_bufs;
 		INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
+		phba->put_nvme_bufs = 0;
 		spin_unlock(&phba->nvme_buf_list_put_lock);
-		list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
-					 &phba->lpfc_nvme_buf_list_get, list) {
-			list_del_init(&lpfc_ncmd->list);
-			found = 1;
-			break;
-		}
+		if (phba->get_nvme_bufs > LPFC_NVME_EXPEDITE_XRICNT || expedite)
+			lpfc_ncmd = lpfc_nvme_buf(phba);
 	}
 	spin_unlock_irqrestore(&phba->nvme_buf_list_get_lock, iflag);
-	if (!found)
-		return NULL;
 	return  lpfc_ncmd;
 }
 
@@ -2145,6 +2248,7 @@ lpfc_release_nvme_buf(struct lpfc_hba *phba, struct lpfc_nvme_buf *lpfc_ncmd)
 		lpfc_ncmd->cur_iocbq.iocb_flag = LPFC_IO_NVME;
 		spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag);
 		list_add_tail(&lpfc_ncmd->list, &phba->lpfc_nvme_buf_list_put);
+		phba->put_nvme_bufs++;
 		spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag);
 	}
 }
@@ -2221,6 +2325,18 @@ lpfc_nvme_create_localport(struct lpfc_vport *vport)
 		lport->vport = vport;
 		vport->nvmei_support = 1;
 
+		atomic_set(&lport->xmt_fcp_noxri, 0);
+		atomic_set(&lport->xmt_fcp_bad_ndlp, 0);
+		atomic_set(&lport->xmt_fcp_qdepth, 0);
+		atomic_set(&lport->xmt_fcp_wqerr, 0);
+		atomic_set(&lport->xmt_fcp_abort, 0);
+		atomic_set(&lport->xmt_ls_abort, 0);
+		atomic_set(&lport->xmt_ls_err, 0);
+		atomic_set(&lport->cmpl_fcp_xb, 0);
+		atomic_set(&lport->cmpl_fcp_err, 0);
+		atomic_set(&lport->cmpl_ls_xb, 0);
+		atomic_set(&lport->cmpl_ls_err, 0);
+
 		/* Don't post more new bufs if repost already recovered
 		 * the nvme sgls.
 		 */
@@ -2234,6 +2350,47 @@ lpfc_nvme_create_localport(struct lpfc_vport *vport)
 	return ret;
 }
 
+/* lpfc_nvme_lport_unreg_wait - Wait for the host to complete an lport unreg.
+ *
+ * The driver has to wait for the host nvme transport to callback
+ * indicating the localport has successfully unregistered all
+ * resources.  Since this is an uninterruptible wait, loop every ten
+ * seconds and print a message indicating no progress.
+ *
+ * An uninterruptible wait is used because of the risk of transport-to-
+ * driver state mismatch.
+ */
+void
+lpfc_nvme_lport_unreg_wait(struct lpfc_vport *vport,
+			   struct lpfc_nvme_lport *lport)
+{
+#if (IS_ENABLED(CONFIG_NVME_FC))
+	u32 wait_tmo;
+	int ret;
+
+	/* Host transport has to clean up and confirm requiring an indefinite
+	 * wait. Print a message if a 10 second wait expires and renew the
+	 * wait. This is unexpected.
+	 */
+	wait_tmo = msecs_to_jiffies(LPFC_NVME_WAIT_TMO * 1000);
+	while (true) {
+		ret = wait_for_completion_timeout(&lport->lport_unreg_done,
+						  wait_tmo);
+		if (unlikely(!ret)) {
+			lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_IOERR,
+					 "6176 Lport %p Localport %p wait "
+					 "timed out. Renewing.\n",
+					 lport, vport->localport);
+			continue;
+		}
+		break;
+	}
+	lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR,
+			 "6177 Lport %p Localport %p Complete Success\n",
+			 lport, vport->localport);
+#endif
+}
+
 /**
  * lpfc_nvme_destroy_localport - Destroy lpfc_nvme bound to nvme transport.
  * @pnvme: pointer to lpfc nvme data structure.
@@ -2268,7 +2425,11 @@ lpfc_nvme_destroy_localport(struct lpfc_vport *vport)
 	 */
 	init_completion(&lport->lport_unreg_done);
 	ret = nvme_fc_unregister_localport(localport);
-	wait_for_completion_timeout(&lport->lport_unreg_done, 5);
+
+	/* Wait for completion.  This either blocks
+	 * indefinitely or succeeds
+	 */
+	lpfc_nvme_lport_unreg_wait(vport, lport);
 
 	/* Regardless of the unregister upcall response, clear
 	 * nvmei_support.  All rports are unregistered and the
@@ -2365,6 +2526,9 @@ lpfc_nvme_register_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 
 	rpinfo.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
 	rpinfo.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
+	if (!ndlp->nrport)
+		lpfc_nlp_get(ndlp);
+
 	ret = nvme_fc_register_remoteport(localport, &rpinfo, &remote_port);
 	if (!ret) {
 		/* If the ndlp already has an nrport, this is just
@@ -2373,23 +2537,33 @@ lpfc_nvme_register_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 		 */
 		rport = remote_port->private;
 		if (ndlp->nrport) {
-			lpfc_printf_vlog(ndlp->vport, KERN_INFO,
-					 LOG_NVME_DISC,
-					 "6014 Rebinding lport to "
-					 "rport wwpn 0x%llx, "
-					 "Data: x%x x%x x%x x%06x\n",
-					 remote_port->port_name,
-					 remote_port->port_id,
-					 remote_port->port_role,
-					 ndlp->nlp_type,
-					 ndlp->nlp_DID);
+			if (ndlp->nrport == remote_port->private) {
+				/* Same remoteport.  Just reuse. */
+				lpfc_printf_vlog(ndlp->vport, KERN_INFO,
+						 LOG_NVME_DISC,
+						 "6014 Rebinding lport to "
+						 "remoteport %p wwpn 0x%llx, "
+						 "Data: x%x x%x %p x%x x%06x\n",
+						 remote_port,
+						 remote_port->port_name,
+						 remote_port->port_id,
+						 remote_port->port_role,
+						 ndlp,
+						 ndlp->nlp_type,
+						 ndlp->nlp_DID);
+				return 0;
+			}
 			prev_ndlp = rport->ndlp;
 
-			/* Sever the ndlp<->rport connection before dropping
-			 * the ndlp ref from register.
+			/* Sever the ndlp<->rport association
+			 * before dropping the ndlp ref from
+			 * register.
 			 */
+			spin_lock_irq(&vport->phba->hbalock);
 			ndlp->nrport = NULL;
+			spin_unlock_irq(&vport->phba->hbalock);
 			rport->ndlp = NULL;
+			rport->remoteport = NULL;
 			if (prev_ndlp)
 				lpfc_nlp_put(ndlp);
 		}
@@ -2397,19 +2571,20 @@ lpfc_nvme_register_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 		/* Clean bind the rport to the ndlp. */
 		rport->remoteport = remote_port;
 		rport->lport = lport;
-		rport->ndlp = lpfc_nlp_get(ndlp);
-		if (!rport->ndlp)
-			return -1;
+		rport->ndlp = ndlp;
+		spin_lock_irq(&vport->phba->hbalock);
 		ndlp->nrport = rport;
+		spin_unlock_irq(&vport->phba->hbalock);
 		lpfc_printf_vlog(vport, KERN_INFO,
 				 LOG_NVME_DISC | LOG_NODE,
 				 "6022 Binding new rport to "
-				 "lport %p Rport WWNN 0x%llx, "
+				 "lport %p Remoteport %p  WWNN 0x%llx, "
 				 "Rport WWPN 0x%llx DID "
-				 "x%06x Role x%x\n",
-				 lport,
+				 "x%06x Role x%x, ndlp %p\n",
+				 lport, remote_port,
 				 rpinfo.node_name, rpinfo.port_name,
-				 rpinfo.port_id, rpinfo.port_role);
+				 rpinfo.port_id, rpinfo.port_role,
+				 ndlp);
 	} else {
 		lpfc_printf_vlog(vport, KERN_ERR,
 				 LOG_NVME_DISC | LOG_NODE,
@@ -2473,20 +2648,20 @@ lpfc_nvme_unregister_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 	/* Sanity check ndlp type.  Only call for NVME ports. Don't
 	 * clear any rport state until the transport calls back.
 	 */
-	if (ndlp->nlp_type & (NLP_NVME_TARGET | NLP_NVME_INITIATOR)) {
-		init_completion(&rport->rport_unreg_done);
 
+	if (ndlp->nlp_type & NLP_NVME_TARGET) {
 		/* No concern about the role change on the nvme remoteport.
 		 * The transport will update it.
 		 */
+		ndlp->upcall_flags |= NLP_WAIT_FOR_UNREG;
 		ret = nvme_fc_unregister_remoteport(remoteport);
 		if (ret != 0) {
+			lpfc_nlp_put(ndlp);
 			lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_DISC,
 					 "6167 NVME unregister failed %d "
 					 "port_state x%x\n",
 					 ret, remoteport->port_state);
 		}
-
 	}
 	return;
 
@@ -2545,8 +2720,11 @@ lpfc_sli4_nvme_xri_aborted(struct lpfc_hba *phba,
 			 * before the abort exchange command fully completes.
 			 * Once completed, it is available via the put list.
 			 */
-			nvme_cmd = lpfc_ncmd->nvmeCmd;
-			nvme_cmd->done(nvme_cmd);
+			if (lpfc_ncmd->nvmeCmd) {
+				nvme_cmd = lpfc_ncmd->nvmeCmd;
+				nvme_cmd->done(nvme_cmd);
+				lpfc_ncmd->nvmeCmd = NULL;
+			}
 			lpfc_release_nvme_buf(phba, lpfc_ncmd);
 			return;
 		}
@@ -2558,3 +2736,45 @@ lpfc_sli4_nvme_xri_aborted(struct lpfc_hba *phba,
 			"6312 XRI Aborted xri x%x not found\n", xri);
 
 }
+
+/**
+ * lpfc_nvme_wait_for_io_drain - Wait for all NVME wqes to complete
+ * @phba: Pointer to HBA context object.
+ *
+ * This function flushes all wqes in the nvme rings and frees all resources
+ * in the txcmplq. This function does not issue abort wqes for the IO
+ * commands in txcmplq, they will just be returned with
+ * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
+ * slot has been permanently disabled.
+ **/
+void
+lpfc_nvme_wait_for_io_drain(struct lpfc_hba *phba)
+{
+	struct lpfc_sli_ring  *pring;
+	u32 i, wait_cnt = 0;
+
+	if (phba->sli_rev < LPFC_SLI_REV4)
+		return;
+
+	/* Cycle through all NVME rings and make sure all outstanding
+	 * WQEs have been removed from the txcmplqs.
+	 */
+	for (i = 0; i < phba->cfg_nvme_io_channel; i++) {
+		pring = phba->sli4_hba.nvme_wq[i]->pring;
+
+		/* Retrieve everything on the txcmplq */
+		while (!list_empty(&pring->txcmplq)) {
+			msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
+			wait_cnt++;
+
+			/* The sleep is 10mS.  Every ten seconds,
+			 * dump a message.  Something is wrong.
+			 */
+			if ((wait_cnt % 1000) == 0) {
+				lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
+						"6178 NVME IO not empty, "
+						"cnt %d\n", wait_cnt);
+			}
+		}
+	}
+}
diff --git a/drivers/scsi/lpfc/lpfc_nvme.h b/drivers/scsi/lpfc/lpfc_nvme.h
index d192bb268f99..e79f8f75758c 100644
--- a/drivers/scsi/lpfc/lpfc_nvme.h
+++ b/drivers/scsi/lpfc/lpfc_nvme.h
@@ -22,10 +22,12 @@
  ********************************************************************/
 
 #define LPFC_NVME_DEFAULT_SEGS		(64 + 1)	/* 256K IOs */
-#define LPFC_NVME_WQSIZE		256
 
 #define LPFC_NVME_ERSP_LEN		0x20
 
+#define LPFC_NVME_WAIT_TMO              10
+#define LPFC_NVME_EXPEDITE_XRICNT	8
+
 struct lpfc_nvme_qhandle {
 	uint32_t index;		/* WQ index to use */
 	uint32_t qidx;		/* queue index passed to create */
@@ -36,7 +38,18 @@ struct lpfc_nvme_qhandle {
 struct lpfc_nvme_lport {
 	struct lpfc_vport *vport;
 	struct completion lport_unreg_done;
-	/* Add sttats counters here */
+	/* Add stats counters here */
+	atomic_t xmt_fcp_noxri;
+	atomic_t xmt_fcp_bad_ndlp;
+	atomic_t xmt_fcp_qdepth;
+	atomic_t xmt_fcp_wqerr;
+	atomic_t xmt_fcp_abort;
+	atomic_t xmt_ls_abort;
+	atomic_t xmt_ls_err;
+	atomic_t cmpl_fcp_xb;
+	atomic_t cmpl_fcp_err;
+	atomic_t cmpl_ls_xb;
+	atomic_t cmpl_ls_err;
 };
 
 struct lpfc_nvme_rport {
diff --git a/drivers/scsi/lpfc/lpfc_nvmet.c b/drivers/scsi/lpfc/lpfc_nvmet.c
index 84cf1b9079f7..8dbf5c9d51aa 100644
--- a/drivers/scsi/lpfc/lpfc_nvmet.c
+++ b/drivers/scsi/lpfc/lpfc_nvmet.c
@@ -38,6 +38,7 @@
 
 #include <../drivers/nvme/host/nvme.h>
 #include <linux/nvme-fc-driver.h>
+#include <linux/nvme-fc.h>
 
 #include "lpfc_version.h"
 #include "lpfc_hw4.h"
@@ -126,10 +127,17 @@ lpfc_nvmet_xmt_ls_rsp_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
 
 	tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
 
-	if (status)
-		atomic_inc(&tgtp->xmt_ls_rsp_error);
-	else
-		atomic_inc(&tgtp->xmt_ls_rsp_cmpl);
+	if (tgtp) {
+		if (status) {
+			atomic_inc(&tgtp->xmt_ls_rsp_error);
+			if (status == IOERR_ABORT_REQUESTED)
+				atomic_inc(&tgtp->xmt_ls_rsp_aborted);
+			if (bf_get(lpfc_wcqe_c_xb, wcqe))
+				atomic_inc(&tgtp->xmt_ls_rsp_xb_set);
+		} else {
+			atomic_inc(&tgtp->xmt_ls_rsp_cmpl);
+		}
+	}
 
 out:
 	rsp = &ctxp->ctx.ls_req;
@@ -218,6 +226,7 @@ lpfc_nvmet_ctxbuf_post(struct lpfc_hba *phba, struct lpfc_nvmet_ctxbuf *ctx_buf)
 		ctxp->entry_cnt = 1;
 		ctxp->flag = 0;
 		ctxp->ctxbuf = ctx_buf;
+		ctxp->rqb_buffer = (void *)nvmebuf;
 		spin_lock_init(&ctxp->ctxlock);
 
 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
@@ -253,6 +262,17 @@ lpfc_nvmet_ctxbuf_post(struct lpfc_hba *phba, struct lpfc_nvmet_ctxbuf *ctx_buf)
 			return;
 		}
 
+		/* Processing of FCP command is deferred */
+		if (rc == -EOVERFLOW) {
+			lpfc_nvmeio_data(phba,
+					 "NVMET RCV BUSY: xri x%x sz %d "
+					 "from %06x\n",
+					 oxid, size, sid);
+			/* defer repost rcv buffer till .defer_rcv callback */
+			ctxp->flag &= ~LPFC_NVMET_DEFER_RCV_REPOST;
+			atomic_inc(&tgtp->rcv_fcp_cmd_out);
+			return;
+		}
 		atomic_inc(&tgtp->rcv_fcp_cmd_drop);
 		lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
 				"2582 FCP Drop IO x%x: err x%x: x%x x%x x%x\n",
@@ -519,8 +539,11 @@ lpfc_nvmet_xmt_fcp_op_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
 	if (status) {
 		rsp->fcp_error = NVME_SC_DATA_XFER_ERROR;
 		rsp->transferred_length = 0;
-		if (tgtp)
+		if (tgtp) {
 			atomic_inc(&tgtp->xmt_fcp_rsp_error);
+			if (status == IOERR_ABORT_REQUESTED)
+				atomic_inc(&tgtp->xmt_fcp_rsp_aborted);
+		}
 
 		logerr = LOG_NVME_IOERR;
 
@@ -528,6 +551,8 @@ lpfc_nvmet_xmt_fcp_op_cmp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdwqe,
 		if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
 			ctxp->flag |= LPFC_NVMET_XBUSY;
 			logerr |= LOG_NVME_ABTS;
+			if (tgtp)
+				atomic_inc(&tgtp->xmt_fcp_rsp_xb_set);
 
 		} else {
 			ctxp->flag &= ~LPFC_NVMET_XBUSY;
@@ -635,6 +660,9 @@ lpfc_nvmet_xmt_ls_rsp(struct nvmet_fc_target_port *tgtport,
 	if (phba->pport->load_flag & FC_UNLOADING)
 		return -ENODEV;
 
+	if (phba->pport->load_flag & FC_UNLOADING)
+		return -ENODEV;
+
 	lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
 			"6023 NVMET LS rsp oxid x%x\n", ctxp->oxid);
 
@@ -721,6 +749,11 @@ lpfc_nvmet_xmt_fcp_op(struct nvmet_fc_target_port *tgtport,
 		goto aerr;
 	}
 
+	if (phba->pport->load_flag & FC_UNLOADING) {
+		rc = -ENODEV;
+		goto aerr;
+	}
+
 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
 	if (ctxp->ts_cmd_nvme) {
 		if (rsp->op == NVMET_FCOP_RSP)
@@ -823,6 +856,9 @@ lpfc_nvmet_xmt_fcp_abort(struct nvmet_fc_target_port *tgtport,
 	if (phba->pport->load_flag & FC_UNLOADING)
 		return;
 
+	if (phba->pport->load_flag & FC_UNLOADING)
+		return;
+
 	lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS,
 			"6103 NVMET Abort op: oxri x%x flg x%x ste %d\n",
 			ctxp->oxid, ctxp->flag, ctxp->state);
@@ -910,7 +946,11 @@ lpfc_nvmet_defer_rcv(struct nvmet_fc_target_port *tgtport,
 
 	tgtp = phba->targetport->private;
 	atomic_inc(&tgtp->rcv_fcp_cmd_defer);
-	lpfc_rq_buf_free(phba, &nvmebuf->hbuf); /* repost */
+	if (ctxp->flag & LPFC_NVMET_DEFER_RCV_REPOST)
+		lpfc_rq_buf_free(phba, &nvmebuf->hbuf); /* repost */
+	else
+		nvmebuf->hrq->rqbp->rqb_free_buffer(phba, nvmebuf);
+	ctxp->flag &= ~LPFC_NVMET_DEFER_RCV_REPOST;
 }
 
 static struct nvmet_fc_target_template lpfc_tgttemplate = {
@@ -1216,6 +1256,8 @@ lpfc_nvmet_create_targetport(struct lpfc_hba *phba)
 		atomic_set(&tgtp->xmt_ls_rsp, 0);
 		atomic_set(&tgtp->xmt_ls_drop, 0);
 		atomic_set(&tgtp->xmt_ls_rsp_error, 0);
+		atomic_set(&tgtp->xmt_ls_rsp_xb_set, 0);
+		atomic_set(&tgtp->xmt_ls_rsp_aborted, 0);
 		atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0);
 		atomic_set(&tgtp->rcv_fcp_cmd_in, 0);
 		atomic_set(&tgtp->rcv_fcp_cmd_out, 0);
@@ -1228,7 +1270,10 @@ lpfc_nvmet_create_targetport(struct lpfc_hba *phba)
 		atomic_set(&tgtp->xmt_fcp_release, 0);
 		atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0);
 		atomic_set(&tgtp->xmt_fcp_rsp_error, 0);
+		atomic_set(&tgtp->xmt_fcp_rsp_xb_set, 0);
+		atomic_set(&tgtp->xmt_fcp_rsp_aborted, 0);
 		atomic_set(&tgtp->xmt_fcp_rsp_drop, 0);
+		atomic_set(&tgtp->xmt_fcp_xri_abort_cqe, 0);
 		atomic_set(&tgtp->xmt_fcp_abort, 0);
 		atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0);
 		atomic_set(&tgtp->xmt_abort_unsol, 0);
@@ -1270,6 +1315,7 @@ lpfc_sli4_nvmet_xri_aborted(struct lpfc_hba *phba,
 	uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
 	uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri);
 	struct lpfc_nvmet_rcv_ctx *ctxp, *next_ctxp;
+	struct lpfc_nvmet_tgtport *tgtp;
 	struct lpfc_nodelist *ndlp;
 	unsigned long iflag = 0;
 	int rrq_empty = 0;
@@ -1280,6 +1326,12 @@ lpfc_sli4_nvmet_xri_aborted(struct lpfc_hba *phba,
 
 	if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
 		return;
+
+	if (phba->targetport) {
+		tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
+		atomic_inc(&tgtp->xmt_fcp_xri_abort_cqe);
+	}
+
 	spin_lock_irqsave(&phba->hbalock, iflag);
 	spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
 	list_for_each_entry_safe(ctxp, next_ctxp,
@@ -1682,6 +1734,7 @@ lpfc_nvmet_unsol_fcp_buffer(struct lpfc_hba *phba,
 	ctxp->entry_cnt = 1;
 	ctxp->flag = 0;
 	ctxp->ctxbuf = ctx_buf;
+	ctxp->rqb_buffer = (void *)nvmebuf;
 	spin_lock_init(&ctxp->ctxlock);
 
 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
@@ -1715,6 +1768,7 @@ lpfc_nvmet_unsol_fcp_buffer(struct lpfc_hba *phba,
 
 	/* Process FCP command */
 	if (rc == 0) {
+		ctxp->rqb_buffer = NULL;
 		atomic_inc(&tgtp->rcv_fcp_cmd_out);
 		lpfc_rq_buf_free(phba, &nvmebuf->hbuf); /* repost */
 		return;
@@ -1726,10 +1780,11 @@ lpfc_nvmet_unsol_fcp_buffer(struct lpfc_hba *phba,
 				 "NVMET RCV BUSY: xri x%x sz %d from %06x\n",
 				 oxid, size, sid);
 		/* defer reposting rcv buffer till .defer_rcv callback */
-		ctxp->rqb_buffer = nvmebuf;
+		ctxp->flag |= LPFC_NVMET_DEFER_RCV_REPOST;
 		atomic_inc(&tgtp->rcv_fcp_cmd_out);
 		return;
 	}
+	ctxp->rqb_buffer = nvmebuf;
 
 	atomic_inc(&tgtp->rcv_fcp_cmd_drop);
 	lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
@@ -1992,7 +2047,7 @@ lpfc_nvmet_prep_fcp_wqe(struct lpfc_hba *phba,
 		return NULL;
 	}
 
-	if (rsp->sg_cnt > phba->cfg_nvme_seg_cnt) {
+	if (rsp->sg_cnt > lpfc_tgttemplate.max_sgl_segments) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
 				"6109 NVMET prep FCP wqe: seg cnt err: "
 				"NPORT x%x oxid x%x ste %d cnt %d\n",
diff --git a/drivers/scsi/lpfc/lpfc_nvmet.h b/drivers/scsi/lpfc/lpfc_nvmet.h
index 25a65b0bb7f3..5b32c9e4d4ef 100644
--- a/drivers/scsi/lpfc/lpfc_nvmet.h
+++ b/drivers/scsi/lpfc/lpfc_nvmet.h
@@ -25,6 +25,10 @@
 #define LPFC_NVMET_RQE_DEF_COUNT	512
 #define LPFC_NVMET_SUCCESS_LEN	12
 
+#define LPFC_NVMET_MRQ_OFF		0xffff
+#define LPFC_NVMET_MRQ_AUTO		0
+#define LPFC_NVMET_MRQ_MAX		16
+
 /* Used for NVME Target */
 struct lpfc_nvmet_tgtport {
 	struct lpfc_hba *phba;
@@ -43,6 +47,8 @@ struct lpfc_nvmet_tgtport {
 
 	/* Stats counters - lpfc_nvmet_xmt_ls_rsp_cmp */
 	atomic_t xmt_ls_rsp_error;
+	atomic_t xmt_ls_rsp_aborted;
+	atomic_t xmt_ls_rsp_xb_set;
 	atomic_t xmt_ls_rsp_cmpl;
 
 	/* Stats counters - lpfc_nvmet_unsol_fcp_buffer */
@@ -60,12 +66,15 @@ struct lpfc_nvmet_tgtport {
 	atomic_t xmt_fcp_rsp;
 
 	/* Stats counters - lpfc_nvmet_xmt_fcp_op_cmp */
+	atomic_t xmt_fcp_rsp_xb_set;
 	atomic_t xmt_fcp_rsp_cmpl;
 	atomic_t xmt_fcp_rsp_error;
+	atomic_t xmt_fcp_rsp_aborted;
 	atomic_t xmt_fcp_rsp_drop;
 
 
 	/* Stats counters - lpfc_nvmet_xmt_fcp_abort */
+	atomic_t xmt_fcp_xri_abort_cqe;
 	atomic_t xmt_fcp_abort;
 	atomic_t xmt_fcp_abort_cmpl;
 	atomic_t xmt_abort_sol;
@@ -122,6 +131,7 @@ struct lpfc_nvmet_rcv_ctx {
 #define LPFC_NVMET_XBUSY		0x4  /* XB bit set on IO cmpl */
 #define LPFC_NVMET_CTX_RLS		0x8  /* ctx free requested */
 #define LPFC_NVMET_ABTS_RCV		0x10  /* ABTS received on exchange */
+#define LPFC_NVMET_DEFER_RCV_REPOST	0x20  /* repost to RQ on defer rcv */
 	struct rqb_dmabuf *rqb_buffer;
 	struct lpfc_nvmet_ctxbuf *ctxbuf;
 
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index aecd2399005d..5f5528a12308 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -475,28 +475,30 @@ lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
 	struct lpfc_rqe *temp_hrqe;
 	struct lpfc_rqe *temp_drqe;
 	struct lpfc_register doorbell;
-	int put_index;
+	int hq_put_index;
+	int dq_put_index;
 
 	/* sanity check on queue memory */
 	if (unlikely(!hq) || unlikely(!dq))
 		return -ENOMEM;
-	put_index = hq->host_index;
-	temp_hrqe = hq->qe[put_index].rqe;
-	temp_drqe = dq->qe[dq->host_index].rqe;
+	hq_put_index = hq->host_index;
+	dq_put_index = dq->host_index;
+	temp_hrqe = hq->qe[hq_put_index].rqe;
+	temp_drqe = dq->qe[dq_put_index].rqe;
 
 	if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
 		return -EINVAL;
-	if (put_index != dq->host_index)
+	if (hq_put_index != dq_put_index)
 		return -EINVAL;
 	/* If the host has not yet processed the next entry then we are done */
-	if (((put_index + 1) % hq->entry_count) == hq->hba_index)
+	if (((hq_put_index + 1) % hq->entry_count) == hq->hba_index)
 		return -EBUSY;
 	lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
 	lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
 
 	/* Update the host index to point to the next slot */
-	hq->host_index = ((put_index + 1) % hq->entry_count);
-	dq->host_index = ((dq->host_index + 1) % dq->entry_count);
+	hq->host_index = ((hq_put_index + 1) % hq->entry_count);
+	dq->host_index = ((dq_put_index + 1) % dq->entry_count);
 	hq->RQ_buf_posted++;
 
 	/* Ring The Header Receive Queue Doorbell */
@@ -517,7 +519,7 @@ lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
 		}
 		writel(doorbell.word0, hq->db_regaddr);
 	}
-	return put_index;
+	return hq_put_index;
 }
 
 /**
@@ -12318,41 +12320,6 @@ void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
 }
 
 /**
- * lpfc_sli4_nvme_xri_abort_event_proc - Process nvme xri abort event
- * @phba: pointer to lpfc hba data structure.
- *
- * This routine is invoked by the worker thread to process all the pending
- * SLI4 NVME abort XRI events.
- **/
-void lpfc_sli4_nvme_xri_abort_event_proc(struct lpfc_hba *phba)
-{
-	struct lpfc_cq_event *cq_event;
-
-	/* First, declare the fcp xri abort event has been handled */
-	spin_lock_irq(&phba->hbalock);
-	phba->hba_flag &= ~NVME_XRI_ABORT_EVENT;
-	spin_unlock_irq(&phba->hbalock);
-	/* Now, handle all the fcp xri abort events */
-	while (!list_empty(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue)) {
-		/* Get the first event from the head of the event queue */
-		spin_lock_irq(&phba->hbalock);
-		list_remove_head(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue,
-				 cq_event, struct lpfc_cq_event, list);
-		spin_unlock_irq(&phba->hbalock);
-		/* Notify aborted XRI for NVME work queue */
-		if (phba->nvmet_support) {
-			lpfc_sli4_nvmet_xri_aborted(phba,
-						    &cq_event->cqe.wcqe_axri);
-		} else {
-			lpfc_sli4_nvme_xri_aborted(phba,
-						   &cq_event->cqe.wcqe_axri);
-		}
-		/* Free the event processed back to the free pool */
-		lpfc_sli4_cq_event_release(phba, cq_event);
-	}
-}
-
-/**
  * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
  * @phba: pointer to lpfc hba data structure.
  *
@@ -12548,6 +12515,24 @@ lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
 	return irspiocbq;
 }
 
+inline struct lpfc_cq_event *
+lpfc_cq_event_setup(struct lpfc_hba *phba, void *entry, int size)
+{
+	struct lpfc_cq_event *cq_event;
+
+	/* Allocate a new internal CQ_EVENT entry */
+	cq_event = lpfc_sli4_cq_event_alloc(phba);
+	if (!cq_event) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+				"0602 Failed to alloc CQ_EVENT entry\n");
+		return NULL;
+	}
+
+	/* Move the CQE into the event */
+	memcpy(&cq_event->cqe, entry, size);
+	return cq_event;
+}
+
 /**
  * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
  * @phba: Pointer to HBA context object.
@@ -12569,16 +12554,9 @@ lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
 			"word2:x%x, word3:x%x\n", mcqe->word0,
 			mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
 
-	/* Allocate a new internal CQ_EVENT entry */
-	cq_event = lpfc_sli4_cq_event_alloc(phba);
-	if (!cq_event) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
-				"0394 Failed to allocate CQ_EVENT entry\n");
+	cq_event = lpfc_cq_event_setup(phba, mcqe, sizeof(struct lpfc_mcqe));
+	if (!cq_event)
 		return false;
-	}
-
-	/* Move the CQE into an asynchronous event entry */
-	memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
 	spin_lock_irqsave(&phba->hbalock, iflags);
 	list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
 	/* Set the async event flag */
@@ -12824,18 +12802,12 @@ lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
 	struct lpfc_cq_event *cq_event;
 	unsigned long iflags;
 
-	/* Allocate a new internal CQ_EVENT entry */
-	cq_event = lpfc_sli4_cq_event_alloc(phba);
-	if (!cq_event) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
-				"0602 Failed to allocate CQ_EVENT entry\n");
-		return false;
-	}
-
-	/* Move the CQE into the proper xri abort event list */
-	memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
 	switch (cq->subtype) {
 	case LPFC_FCP:
+		cq_event = lpfc_cq_event_setup(
+			phba, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
+		if (!cq_event)
+			return false;
 		spin_lock_irqsave(&phba->hbalock, iflags);
 		list_add_tail(&cq_event->list,
 			      &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
@@ -12844,7 +12816,12 @@ lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
 		spin_unlock_irqrestore(&phba->hbalock, iflags);
 		workposted = true;
 		break;
+	case LPFC_NVME_LS: /* NVME LS uses ELS resources */
 	case LPFC_ELS:
+		cq_event = lpfc_cq_event_setup(
+			phba, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
+		if (!cq_event)
+			return false;
 		spin_lock_irqsave(&phba->hbalock, iflags);
 		list_add_tail(&cq_event->list,
 			      &phba->sli4_hba.sp_els_xri_aborted_work_queue);
@@ -12854,13 +12831,13 @@ lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
 		workposted = true;
 		break;
 	case LPFC_NVME:
-		spin_lock_irqsave(&phba->hbalock, iflags);
-		list_add_tail(&cq_event->list,
-			      &phba->sli4_hba.sp_nvme_xri_aborted_work_queue);
-		/* Set the nvme xri abort event flag */
-		phba->hba_flag |= NVME_XRI_ABORT_EVENT;
-		spin_unlock_irqrestore(&phba->hbalock, iflags);
-		workposted = true;
+		/* Notify aborted XRI for NVME work queue */
+		if (phba->nvmet_support)
+			lpfc_sli4_nvmet_xri_aborted(phba, wcqe);
+		else
+			lpfc_sli4_nvme_xri_aborted(phba, wcqe);
+
+		workposted = false;
 		break;
 	default:
 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
@@ -12868,7 +12845,6 @@ lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
 				"%08x %08x %08x %08x\n",
 				cq->subtype, wcqe->word0, wcqe->parameter,
 				wcqe->word2, wcqe->word3);
-		lpfc_sli4_cq_event_release(phba, cq_event);
 		workposted = false;
 		break;
 	}
@@ -12913,8 +12889,8 @@ lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
 				"2537 Receive Frame Truncated!!\n");
 	case FC_STATUS_RQ_SUCCESS:
-		lpfc_sli4_rq_release(hrq, drq);
 		spin_lock_irqsave(&phba->hbalock, iflags);
+		lpfc_sli4_rq_release(hrq, drq);
 		dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
 		if (!dma_buf) {
 			hrq->RQ_no_buf_found++;
@@ -13316,8 +13292,8 @@ lpfc_sli4_nvmet_handle_rcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
 				"6126 Receive Frame Truncated!!\n");
 		/* Drop thru */
 	case FC_STATUS_RQ_SUCCESS:
-		lpfc_sli4_rq_release(hrq, drq);
 		spin_lock_irqsave(&phba->hbalock, iflags);
+		lpfc_sli4_rq_release(hrq, drq);
 		dma_buf = lpfc_sli_rqbuf_get(phba, hrq);
 		if (!dma_buf) {
 			hrq->RQ_no_buf_found++;
@@ -13919,7 +13895,7 @@ lpfc_sli4_queue_free(struct lpfc_queue *queue)
 	while (!list_empty(&queue->page_list)) {
 		list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
 				 list);
-		dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
+		dma_free_coherent(&queue->phba->pcidev->dev, queue->page_size,
 				  dmabuf->virt, dmabuf->phys);
 		kfree(dmabuf);
 	}
@@ -13938,6 +13914,7 @@ lpfc_sli4_queue_free(struct lpfc_queue *queue)
 /**
  * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
  * @phba: The HBA that this queue is being created on.
+ * @page_size: The size of a queue page
  * @entry_size: The size of each queue entry for this queue.
  * @entry count: The number of entries that this queue will handle.
  *
@@ -13946,8 +13923,8 @@ lpfc_sli4_queue_free(struct lpfc_queue *queue)
  * queue on the HBA.
  **/
 struct lpfc_queue *
-lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
-		      uint32_t entry_count)
+lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t page_size,
+		      uint32_t entry_size, uint32_t entry_count)
 {
 	struct lpfc_queue *queue;
 	struct lpfc_dmabuf *dmabuf;
@@ -13956,7 +13933,7 @@ lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
 	uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
 
 	if (!phba->sli4_hba.pc_sli4_params.supported)
-		hw_page_size = SLI4_PAGE_SIZE;
+		hw_page_size = page_size;
 
 	queue = kzalloc(sizeof(struct lpfc_queue) +
 			(sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
@@ -13973,6 +13950,15 @@ lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
 	INIT_LIST_HEAD(&queue->wq_list);
 	INIT_LIST_HEAD(&queue->page_list);
 	INIT_LIST_HEAD(&queue->child_list);
+
+	/* Set queue parameters now.  If the system cannot provide memory
+	 * resources, the free routine needs to know what was allocated.
+	 */
+	queue->entry_size = entry_size;
+	queue->entry_count = entry_count;
+	queue->page_size = hw_page_size;
+	queue->phba = phba;
+
 	for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
 		dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
 		if (!dmabuf)
@@ -13994,9 +13980,6 @@ lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
 			queue->qe[total_qe_count].address = dma_pointer;
 		}
 	}
-	queue->entry_size = entry_size;
-	queue->entry_count = entry_count;
-	queue->phba = phba;
 	INIT_WORK(&queue->irqwork, lpfc_sli4_hba_process_cq);
 	INIT_WORK(&queue->spwork, lpfc_sli4_sp_process_cq);
 
@@ -14299,7 +14282,7 @@ lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
 	if (!cq || !eq)
 		return -ENODEV;
 	if (!phba->sli4_hba.pc_sli4_params.supported)
-		hw_page_size = SLI4_PAGE_SIZE;
+		hw_page_size = cq->page_size;
 
 	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 	if (!mbox)
@@ -14318,8 +14301,8 @@ lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
 	bf_set(lpfc_mbox_hdr_version, &shdr->request,
 	       phba->sli4_hba.pc_sli4_params.cqv);
 	if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
-		/* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
-		bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request, 1);
+		bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request,
+		       (cq->page_size / SLI4_PAGE_SIZE));
 		bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
 		       eq->queue_id);
 	} else {
@@ -14327,6 +14310,18 @@ lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
 		       eq->queue_id);
 	}
 	switch (cq->entry_count) {
+	case 2048:
+	case 4096:
+		if (phba->sli4_hba.pc_sli4_params.cqv ==
+		    LPFC_Q_CREATE_VERSION_2) {
+			cq_create->u.request.context.lpfc_cq_context_count =
+				cq->entry_count;
+			bf_set(lpfc_cq_context_count,
+			       &cq_create->u.request.context,
+			       LPFC_CQ_CNT_WORD7);
+			break;
+		}
+		/* Fall Thru */
 	default:
 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
 				"0361 Unsupported CQ count: "
@@ -14352,7 +14347,7 @@ lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
 		break;
 	}
 	list_for_each_entry(dmabuf, &cq->page_list, list) {
-		memset(dmabuf->virt, 0, hw_page_size);
+		memset(dmabuf->virt, 0, cq->page_size);
 		cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
 					putPaddrLow(dmabuf->phys);
 		cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
@@ -14433,8 +14428,6 @@ lpfc_cq_create_set(struct lpfc_hba *phba, struct lpfc_queue **cqp,
 	numcq = phba->cfg_nvmet_mrq;
 	if (!cqp || !eqp || !numcq)
 		return -ENODEV;
-	if (!phba->sli4_hba.pc_sli4_params.supported)
-		hw_page_size = SLI4_PAGE_SIZE;
 
 	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 	if (!mbox)
@@ -14465,6 +14458,8 @@ lpfc_cq_create_set(struct lpfc_hba *phba, struct lpfc_queue **cqp,
 			status = -ENOMEM;
 			goto out;
 		}
+		if (!phba->sli4_hba.pc_sli4_params.supported)
+			hw_page_size = cq->page_size;
 
 		switch (idx) {
 		case 0:
@@ -14482,6 +14477,19 @@ lpfc_cq_create_set(struct lpfc_hba *phba, struct lpfc_queue **cqp,
 			bf_set(lpfc_mbx_cq_create_set_num_cq,
 			       &cq_set->u.request, numcq);
 			switch (cq->entry_count) {
+			case 2048:
+			case 4096:
+				if (phba->sli4_hba.pc_sli4_params.cqv ==
+				    LPFC_Q_CREATE_VERSION_2) {
+					bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
+					       &cq_set->u.request,
+						cq->entry_count);
+					bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
+					       &cq_set->u.request,
+					       LPFC_CQ_CNT_WORD7);
+					break;
+				}
+				/* Fall Thru */
 			default:
 				lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
 						"3118 Bad CQ count. (%d)\n",
@@ -14578,6 +14586,7 @@ lpfc_cq_create_set(struct lpfc_hba *phba, struct lpfc_queue **cqp,
 		cq->host_index = 0;
 		cq->hba_index = 0;
 		cq->entry_repost = LPFC_CQ_REPOST;
+		cq->chann = idx;
 
 		rc = 0;
 		list_for_each_entry(dmabuf, &cq->page_list, list) {
@@ -14872,12 +14881,13 @@ lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
 	void __iomem *bar_memmap_p;
 	uint32_t db_offset;
 	uint16_t pci_barset;
+	uint8_t wq_create_version;
 
 	/* sanity check on queue memory */
 	if (!wq || !cq)
 		return -ENODEV;
 	if (!phba->sli4_hba.pc_sli4_params.supported)
-		hw_page_size = SLI4_PAGE_SIZE;
+		hw_page_size = wq->page_size;
 
 	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 	if (!mbox)
@@ -14898,7 +14908,12 @@ lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
 	bf_set(lpfc_mbox_hdr_version, &shdr->request,
 	       phba->sli4_hba.pc_sli4_params.wqv);
 
-	switch (phba->sli4_hba.pc_sli4_params.wqv) {
+	if (phba->sli4_hba.pc_sli4_params.wqsize & LPFC_WQ_SZ128_SUPPORT)
+		wq_create_version = LPFC_Q_CREATE_VERSION_1;
+	else
+		wq_create_version = LPFC_Q_CREATE_VERSION_0;
+
+	switch (wq_create_version) {
 	case LPFC_Q_CREATE_VERSION_0:
 		switch (wq->entry_size) {
 		default:
@@ -14956,7 +14971,7 @@ lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
 		}
 		bf_set(lpfc_mbx_wq_create_page_size,
 		       &wq_create->u.request_1,
-		       LPFC_WQ_PAGE_SIZE_4096);
+		       (wq->page_size / SLI4_PAGE_SIZE));
 		page = wq_create->u.request_1.page;
 		break;
 	default:
diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h
index 13b8f4d4da34..81fb58e59e60 100644
--- a/drivers/scsi/lpfc/lpfc_sli4.h
+++ b/drivers/scsi/lpfc/lpfc_sli4.h
@@ -161,7 +161,6 @@ struct lpfc_queue {
 #define LPFC_RELEASE_NOTIFICATION_INTERVAL	32  /* For WQs */
 	uint32_t queue_id;	/* Queue ID assigned by the hardware */
 	uint32_t assoc_qid;     /* Queue ID associated with, for CQ/WQ/MQ */
-	uint32_t page_count;	/* Number of pages allocated for this queue */
 	uint32_t host_index;	/* The host's index for putting or getting */
 	uint32_t hba_index;	/* The last known hba index for get or put */
 
@@ -169,6 +168,11 @@ struct lpfc_queue {
 	struct lpfc_rqb *rqbp;	/* ptr to RQ buffers */
 
 	uint32_t q_mode;
+	uint16_t page_count;	/* Number of pages allocated for this queue */
+	uint16_t page_size;	/* size of page allocated for this queue */
+#define LPFC_EXPANDED_PAGE_SIZE	16384
+#define LPFC_DEFAULT_PAGE_SIZE	4096
+	uint16_t chann;		/* IO channel this queue is associated with */
 	uint16_t db_format;
 #define LPFC_DB_RING_FORMAT	0x01
 #define LPFC_DB_LIST_FORMAT	0x02
@@ -366,9 +370,9 @@ struct lpfc_bmbx {
 
 #define LPFC_EQE_DEF_COUNT	1024
 #define LPFC_CQE_DEF_COUNT      1024
+#define LPFC_CQE_EXP_COUNT      4096
 #define LPFC_WQE_DEF_COUNT      256
-#define LPFC_WQE128_DEF_COUNT   128
-#define LPFC_WQE128_MAX_COUNT   256
+#define LPFC_WQE_EXP_COUNT      1024
 #define LPFC_MQE_DEF_COUNT      16
 #define LPFC_RQE_DEF_COUNT	512
 
@@ -668,7 +672,6 @@ struct lpfc_sli4_hba {
 	struct list_head sp_asynce_work_queue;
 	struct list_head sp_fcp_xri_aborted_work_queue;
 	struct list_head sp_els_xri_aborted_work_queue;
-	struct list_head sp_nvme_xri_aborted_work_queue;
 	struct list_head sp_unsol_work_queue;
 	struct lpfc_sli4_link link_state;
 	struct lpfc_sli4_lnk_info lnk_info;
@@ -769,7 +772,7 @@ int lpfc_sli4_mbx_read_fcf_rec(struct lpfc_hba *, struct lpfcMboxq *,
 
 void lpfc_sli4_hba_reset(struct lpfc_hba *);
 struct lpfc_queue *lpfc_sli4_queue_alloc(struct lpfc_hba *, uint32_t,
-			uint32_t);
+					 uint32_t, uint32_t);
 void lpfc_sli4_queue_free(struct lpfc_queue *);
 int lpfc_eq_create(struct lpfc_hba *, struct lpfc_queue *, uint32_t);
 int lpfc_modify_hba_eq_delay(struct lpfc_hba *phba, uint32_t startq,
@@ -820,7 +823,6 @@ void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *);
 int lpfc_sli4_resume_rpi(struct lpfc_nodelist *,
 			void (*)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *);
 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *);
-void lpfc_sli4_nvme_xri_abort_event_proc(struct lpfc_hba *phba);
 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *);
 void lpfc_sli4_fcp_xri_aborted(struct lpfc_hba *,
 			       struct sli4_wcqe_xri_aborted *);
diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h
index e0181371af09..c232bf0e8998 100644
--- a/drivers/scsi/lpfc/lpfc_version.h
+++ b/drivers/scsi/lpfc/lpfc_version.h
@@ -20,7 +20,7 @@
  * included with this package.                                     *
  *******************************************************************/
 
-#define LPFC_DRIVER_VERSION "11.4.0.4"
+#define LPFC_DRIVER_VERSION "11.4.0.6"
 #define LPFC_DRIVER_NAME		"lpfc"
 
 /* Used for SLI 2/3 */
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index f5a36ccb8606..ba6503f37756 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -35,8 +35,8 @@
 /*
  * MegaRAID SAS Driver meta data
  */
-#define MEGASAS_VERSION				"07.703.05.00-rc1"
-#define MEGASAS_RELDATE				"October 5, 2017"
+#define MEGASAS_VERSION				"07.704.04.00-rc1"
+#define MEGASAS_RELDATE				"December 7, 2017"
 
 /*
  * Device IDs
@@ -197,6 +197,7 @@ enum MFI_CMD_OP {
 	MFI_CMD_ABORT		= 0x6,
 	MFI_CMD_SMP		= 0x7,
 	MFI_CMD_STP		= 0x8,
+	MFI_CMD_NVME		= 0x9,
 	MFI_CMD_OP_COUNT,
 	MFI_CMD_INVALID		= 0xff
 };
@@ -230,7 +231,7 @@ enum MFI_CMD_OP {
 /*
  * Global functions
  */
-extern u8 MR_ValidateMapInfo(struct megasas_instance *instance);
+extern u8 MR_ValidateMapInfo(struct megasas_instance *instance, u64 map_id);
 
 
 /*
@@ -1352,7 +1353,13 @@ struct megasas_ctrl_info {
 
 	struct {
 	#if defined(__BIG_ENDIAN_BITFIELD)
-		u16 reserved:8;
+		u16 reserved:2;
+		u16 support_nvme_passthru:1;
+		u16 support_pl_debug_info:1;
+		u16 support_flash_comp_info:1;
+		u16 support_host_info:1;
+		u16 support_dual_fw_update:1;
+		u16 support_ssc_rev3:1;
 		u16 fw_swaps_bbu_vpd_info:1;
 		u16 support_pd_map_target_id:1;
 		u16 support_ses_ctrl_in_multipathcfg:1;
@@ -1377,7 +1384,19 @@ struct megasas_ctrl_info {
 		 *  provide the data in little endian order
 		 */
 		u16 fw_swaps_bbu_vpd_info:1;
-		u16 reserved:8;
+		u16 support_ssc_rev3:1;
+		/* FW supports CacheCade 3.0, only one SSCD creation allowed */
+		u16 support_dual_fw_update:1;
+		/* FW supports dual firmware update feature */
+		u16 support_host_info:1;
+		/* FW supports MR_DCMD_CTRL_HOST_INFO_SET/GET */
+		u16 support_flash_comp_info:1;
+		/* FW supports MR_DCMD_CTRL_FLASH_COMP_INFO_GET */
+		u16 support_pl_debug_info:1;
+		/* FW supports retrieval of PL debug information through apps */
+		u16 support_nvme_passthru:1;
+		/* FW supports NVMe passthru commands */
+		u16 reserved:2;
 	#endif
 		} adapter_operations4;
 	u8 pad[0x800 - 0x7FE]; /* 0x7FE pad to 2K for expansion */
@@ -1630,7 +1649,8 @@ union megasas_sgl_frame {
 typedef union _MFI_CAPABILITIES {
 	struct {
 #if   defined(__BIG_ENDIAN_BITFIELD)
-	u32     reserved:18;
+	u32     reserved:17;
+	u32	support_nvme_passthru:1;
 	u32     support_64bit_mode:1;
 	u32 support_pd_map_target_id:1;
 	u32     support_qd_throttling:1;
@@ -1660,7 +1680,8 @@ typedef union _MFI_CAPABILITIES {
 	u32     support_qd_throttling:1;
 	u32	support_pd_map_target_id:1;
 	u32     support_64bit_mode:1;
-	u32     reserved:18;
+	u32	support_nvme_passthru:1;
+	u32     reserved:17;
 #endif
 	} mfi_capabilities;
 	__le32		reg;
@@ -2188,7 +2209,6 @@ struct megasas_instance {
 	struct megasas_evt_detail *evt_detail;
 	dma_addr_t evt_detail_h;
 	struct megasas_cmd *aen_cmd;
-	struct mutex hba_mutex;
 	struct semaphore ioctl_sem;
 
 	struct Scsi_Host *host;
@@ -2269,6 +2289,7 @@ struct megasas_instance {
 	u32 nvme_page_size;
 	u8 adapter_type;
 	bool consistent_mask_64bit;
+	bool support_nvme_passthru;
 };
 struct MR_LD_VF_MAP {
 	u32 size;
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 2c8cfa27909d..2791141bd035 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -181,6 +181,7 @@ static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait);
 static u32 support_poll_for_event;
 u32 megasas_dbg_lvl;
 static u32 support_device_change;
+static bool support_nvme_encapsulation;
 
 /* define lock for aen poll */
 spinlock_t poll_aen_lock;
@@ -1952,7 +1953,7 @@ static int megasas_slave_configure(struct scsi_device *sdev)
 		}
 	}
 
-	mutex_lock(&instance->hba_mutex);
+	mutex_lock(&instance->reset_mutex);
 	/* Send DCMD to Firmware and cache the information */
 	if ((instance->pd_info) && !MEGASAS_IS_LOGICAL(sdev))
 		megasas_get_pd_info(instance, sdev);
@@ -1966,7 +1967,7 @@ static int megasas_slave_configure(struct scsi_device *sdev)
 	is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false;
 	megasas_set_static_target_properties(sdev, is_target_prop);
 
-	mutex_unlock(&instance->hba_mutex);
+	mutex_unlock(&instance->reset_mutex);
 
 	/* This sdev property may change post OCR */
 	megasas_set_dynamic_target_properties(sdev);
@@ -3122,6 +3123,16 @@ megasas_ldio_outstanding_show(struct device *cdev, struct device_attribute *attr
 	return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->ldio_outstanding));
 }
 
+static ssize_t
+megasas_fw_cmds_outstanding_show(struct device *cdev,
+				 struct device_attribute *attr, char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;
+
+	return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->fw_outstanding));
+}
+
 static DEVICE_ATTR(fw_crash_buffer, S_IRUGO | S_IWUSR,
 	megasas_fw_crash_buffer_show, megasas_fw_crash_buffer_store);
 static DEVICE_ATTR(fw_crash_buffer_size, S_IRUGO,
@@ -3132,6 +3143,8 @@ static DEVICE_ATTR(page_size, S_IRUGO,
 	megasas_page_size_show, NULL);
 static DEVICE_ATTR(ldio_outstanding, S_IRUGO,
 	megasas_ldio_outstanding_show, NULL);
+static DEVICE_ATTR(fw_cmds_outstanding, S_IRUGO,
+	megasas_fw_cmds_outstanding_show, NULL);
 
 struct device_attribute *megaraid_host_attrs[] = {
 	&dev_attr_fw_crash_buffer_size,
@@ -3139,6 +3152,7 @@ struct device_attribute *megaraid_host_attrs[] = {
 	&dev_attr_fw_crash_state,
 	&dev_attr_page_size,
 	&dev_attr_ldio_outstanding,
+	&dev_attr_fw_cmds_outstanding,
 	NULL,
 };
 
@@ -3321,6 +3335,7 @@ megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
 
 	case MFI_CMD_SMP:
 	case MFI_CMD_STP:
+	case MFI_CMD_NVME:
 		megasas_complete_int_cmd(instance, cmd);
 		break;
 
@@ -3331,10 +3346,10 @@ megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
 			&& (cmd->frame->dcmd.mbox.b[1] == 1)) {
 			fusion->fast_path_io = 0;
 			spin_lock_irqsave(instance->host->host_lock, flags);
+			status = cmd->frame->hdr.cmd_status;
 			instance->map_update_cmd = NULL;
-			if (cmd->frame->hdr.cmd_status != 0) {
-				if (cmd->frame->hdr.cmd_status !=
-				    MFI_STAT_NOT_FOUND)
+			if (status != MFI_STAT_OK) {
+				if (status != MFI_STAT_NOT_FOUND)
 					dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n",
 					       cmd->frame->hdr.cmd_status);
 				else {
@@ -3344,8 +3359,8 @@ megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
 						flags);
 					break;
 				}
-			} else
-				instance->map_id++;
+			}
+
 			megasas_return_cmd(instance, cmd);
 
 			/*
@@ -3353,10 +3368,14 @@ megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
 			 * Validate Map will set proper value.
 			 * Meanwhile all IOs will go as LD IO.
 			 */
-			if (MR_ValidateMapInfo(instance))
+			if (status == MFI_STAT_OK &&
+			    (MR_ValidateMapInfo(instance, (instance->map_id + 1)))) {
+				instance->map_id++;
 				fusion->fast_path_io = 1;
-			else
+			} else {
 				fusion->fast_path_io = 0;
+			}
+
 			megasas_sync_map_info(instance);
 			spin_unlock_irqrestore(instance->host->host_lock,
 					       flags);
@@ -4677,10 +4696,12 @@ megasas_get_ctrl_info(struct megasas_instance *instance)
 				 sizeof(struct megasas_ctrl_info));
 
 	if ((instance->adapter_type != MFI_SERIES) &&
-	    !instance->mask_interrupts)
+	    !instance->mask_interrupts) {
 		ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
-	else
+	} else {
 		ret = megasas_issue_polled(instance, cmd);
+		cmd->flags |= DRV_DCMD_SKIP_REFIRE;
+	}
 
 	switch (ret) {
 	case DCMD_SUCCESS:
@@ -4702,6 +4723,8 @@ megasas_get_ctrl_info(struct megasas_instance *instance)
 			ci->adapterOperations3.useSeqNumJbodFP;
 		instance->support_morethan256jbod =
 			ci->adapter_operations4.support_pd_map_target_id;
+		instance->support_nvme_passthru =
+			ci->adapter_operations4.support_nvme_passthru;
 
 		/*Check whether controller is iMR or MR */
 		instance->is_imr = (ci->memory_size ? 0 : 1);
@@ -4718,6 +4741,8 @@ megasas_get_ctrl_info(struct megasas_instance *instance)
 			instance->disableOnlineCtrlReset ? "Disabled" : "Enabled");
 		dev_info(&instance->pdev->dev, "Secure JBOD support\t: %s\n",
 			instance->secure_jbod_support ? "Yes" : "No");
+		dev_info(&instance->pdev->dev, "NVMe passthru support\t: %s\n",
+			 instance->support_nvme_passthru ? "Yes" : "No");
 		break;
 
 	case DCMD_TIMEOUT:
@@ -5387,7 +5412,7 @@ static int megasas_init_fw(struct megasas_instance *instance)
 		}
 		for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) {
 			fusion->stream_detect_by_ld[i] =
-				kmalloc(sizeof(struct LD_STREAM_DETECT),
+				kzalloc(sizeof(struct LD_STREAM_DETECT),
 				GFP_KERNEL);
 			if (!fusion->stream_detect_by_ld[i]) {
 				dev_err(&instance->pdev->dev,
@@ -5432,7 +5457,7 @@ static int megasas_init_fw(struct megasas_instance *instance)
 		ctrl_info->adapterOperations2.supportUnevenSpans;
 	if (instance->UnevenSpanSupport) {
 		struct fusion_context *fusion = instance->ctrl_context;
-		if (MR_ValidateMapInfo(instance))
+		if (MR_ValidateMapInfo(instance, instance->map_id))
 			fusion->fast_path_io = 1;
 		else
 			fusion->fast_path_io = 0;
@@ -5581,6 +5606,7 @@ megasas_get_seq_num(struct megasas_instance *instance,
 	struct megasas_dcmd_frame *dcmd;
 	struct megasas_evt_log_info *el_info;
 	dma_addr_t el_info_h = 0;
+	int ret;
 
 	cmd = megasas_get_cmd(instance);
 
@@ -5613,26 +5639,29 @@ megasas_get_seq_num(struct megasas_instance *instance,
 	megasas_set_dma_settings(instance, dcmd, el_info_h,
 				 sizeof(struct megasas_evt_log_info));
 
-	if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) ==
-		DCMD_SUCCESS) {
-		/*
-		 * Copy the data back into callers buffer
-		 */
-		eli->newest_seq_num = el_info->newest_seq_num;
-		eli->oldest_seq_num = el_info->oldest_seq_num;
-		eli->clear_seq_num = el_info->clear_seq_num;
-		eli->shutdown_seq_num = el_info->shutdown_seq_num;
-		eli->boot_seq_num = el_info->boot_seq_num;
-	} else
-		dev_err(&instance->pdev->dev, "DCMD failed "
-			"from %s\n", __func__);
+	ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);
+	if (ret != DCMD_SUCCESS) {
+		dev_err(&instance->pdev->dev, "Failed from %s %d\n",
+			__func__, __LINE__);
+		goto dcmd_failed;
+	}
 
+	/*
+	 * Copy the data back into callers buffer
+	 */
+	eli->newest_seq_num = el_info->newest_seq_num;
+	eli->oldest_seq_num = el_info->oldest_seq_num;
+	eli->clear_seq_num = el_info->clear_seq_num;
+	eli->shutdown_seq_num = el_info->shutdown_seq_num;
+	eli->boot_seq_num = el_info->boot_seq_num;
+
+dcmd_failed:
 	pci_free_consistent(instance->pdev, sizeof(struct megasas_evt_log_info),
 			    el_info, el_info_h);
 
 	megasas_return_cmd(instance, cmd);
 
-	return 0;
+	return ret;
 }
 
 /**
@@ -6346,7 +6375,6 @@ static inline void megasas_init_ctrl_params(struct megasas_instance *instance)
 	spin_lock_init(&instance->stream_lock);
 	spin_lock_init(&instance->completion_lock);
 
-	mutex_init(&instance->hba_mutex);
 	mutex_init(&instance->reset_mutex);
 
 	if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||
@@ -6704,6 +6732,7 @@ megasas_resume(struct pci_dev *pdev)
 	 */
 
 	atomic_set(&instance->fw_outstanding, 0);
+	atomic_set(&instance->ldio_outstanding, 0);
 
 	/* Now re-enable MSI-X */
 	if (instance->msix_vectors) {
@@ -6822,7 +6851,6 @@ static void megasas_detach_one(struct pci_dev *pdev)
 	u32 pd_seq_map_sz;
 
 	instance = pci_get_drvdata(pdev);
-	instance->unload = 1;
 	host = instance->host;
 	fusion = instance->ctrl_context;
 
@@ -6833,6 +6861,7 @@ static void megasas_detach_one(struct pci_dev *pdev)
 	if (instance->fw_crash_state != UNAVAILABLE)
 		megasas_free_host_crash_buffer(instance);
 	scsi_remove_host(instance->host);
+	instance->unload = 1;
 
 	if (megasas_wait_for_adapter_operational(instance))
 		goto skip_firing_dcmds;
@@ -7087,7 +7116,9 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
 		return -EINVAL;
 	}
 
-	if (ioc->frame.hdr.cmd >= MFI_CMD_OP_COUNT) {
+	if ((ioc->frame.hdr.cmd >= MFI_CMD_OP_COUNT) ||
+	    ((ioc->frame.hdr.cmd == MFI_CMD_NVME) &&
+	    !instance->support_nvme_passthru)) {
 		dev_err(&instance->pdev->dev,
 			"Received invalid ioctl command 0x%x\n",
 			ioc->frame.hdr.cmd);
@@ -7301,9 +7332,6 @@ static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg)
 	struct megasas_iocpacket *ioc;
 	struct megasas_instance *instance;
 	int error;
-	int i;
-	unsigned long flags;
-	u32 wait_time = MEGASAS_RESET_WAIT_TIME;
 
 	ioc = memdup_user(user_ioc, sizeof(*ioc));
 	if (IS_ERR(ioc))
@@ -7315,10 +7343,6 @@ static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg)
 		goto out_kfree_ioc;
 	}
 
-	/* Adjust ioctl wait time for VF mode */
-	if (instance->requestorId)
-		wait_time = MEGASAS_ROUTINE_WAIT_TIME_VF;
-
 	/* Block ioctls in VF mode */
 	if (instance->requestorId && !allow_vf_ioctls) {
 		error = -ENODEV;
@@ -7341,32 +7365,10 @@ static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg)
 		goto out_kfree_ioc;
 	}
 
-	for (i = 0; i < wait_time; i++) {
-
-		spin_lock_irqsave(&instance->hba_lock, flags);
-		if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) {
-			spin_unlock_irqrestore(&instance->hba_lock, flags);
-			break;
-		}
-		spin_unlock_irqrestore(&instance->hba_lock, flags);
-
-		if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
-			dev_notice(&instance->pdev->dev, "waiting"
-				"for controller reset to finish\n");
-		}
-
-		msleep(1000);
-	}
-
-	spin_lock_irqsave(&instance->hba_lock, flags);
-	if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
-		spin_unlock_irqrestore(&instance->hba_lock, flags);
-
-		dev_err(&instance->pdev->dev, "timed out while waiting for HBA to recover\n");
+	if  (megasas_wait_for_adapter_operational(instance)) {
 		error = -ENODEV;
 		goto out_up;
 	}
-	spin_unlock_irqrestore(&instance->hba_lock, flags);
 
 	error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc);
 out_up:
@@ -7382,9 +7384,6 @@ static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg)
 	struct megasas_instance *instance;
 	struct megasas_aen aen;
 	int error;
-	int i;
-	unsigned long flags;
-	u32 wait_time = MEGASAS_RESET_WAIT_TIME;
 
 	if (file->private_data != file) {
 		printk(KERN_DEBUG "megasas: fasync_helper was not "
@@ -7408,32 +7407,8 @@ static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg)
 		return -ENODEV;
 	}
 
-	for (i = 0; i < wait_time; i++) {
-
-		spin_lock_irqsave(&instance->hba_lock, flags);
-		if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) {
-			spin_unlock_irqrestore(&instance->hba_lock,
-						flags);
-			break;
-		}
-
-		spin_unlock_irqrestore(&instance->hba_lock, flags);
-
-		if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {
-			dev_notice(&instance->pdev->dev, "waiting for"
-				"controller reset to finish\n");
-		}
-
-		msleep(1000);
-	}
-
-	spin_lock_irqsave(&instance->hba_lock, flags);
-	if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {
-		spin_unlock_irqrestore(&instance->hba_lock, flags);
-		dev_err(&instance->pdev->dev, "timed out while waiting for HBA to recover\n");
+	if  (megasas_wait_for_adapter_operational(instance))
 		return -ENODEV;
-	}
-	spin_unlock_irqrestore(&instance->hba_lock, flags);
 
 	mutex_lock(&instance->reset_mutex);
 	error = megasas_register_aen(instance, aen.seq_num,
@@ -7613,6 +7588,14 @@ static ssize_t dbg_lvl_store(struct device_driver *dd, const char *buf,
 }
 static DRIVER_ATTR_RW(dbg_lvl);
 
+static ssize_t
+support_nvme_encapsulation_show(struct device_driver *dd, char *buf)
+{
+	return sprintf(buf, "%u\n", support_nvme_encapsulation);
+}
+
+static DRIVER_ATTR_RO(support_nvme_encapsulation);
+
 static inline void megasas_remove_scsi_device(struct scsi_device *sdev)
 {
 	sdev_printk(KERN_INFO, sdev, "SCSI device is removed\n");
@@ -7801,6 +7784,7 @@ static int __init megasas_init(void)
 
 	support_poll_for_event = 2;
 	support_device_change = 1;
+	support_nvme_encapsulation = true;
 
 	memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info));
 
@@ -7850,8 +7834,17 @@ static int __init megasas_init(void)
 	if (rval)
 		goto err_dcf_support_device_change;
 
+	rval = driver_create_file(&megasas_pci_driver.driver,
+				  &driver_attr_support_nvme_encapsulation);
+	if (rval)
+		goto err_dcf_support_nvme_encapsulation;
+
 	return rval;
 
+err_dcf_support_nvme_encapsulation:
+	driver_remove_file(&megasas_pci_driver.driver,
+			   &driver_attr_support_device_change);
+
 err_dcf_support_device_change:
 	driver_remove_file(&megasas_pci_driver.driver,
 			   &driver_attr_dbg_lvl);
@@ -7884,6 +7877,8 @@ static void __exit megasas_exit(void)
 	driver_remove_file(&megasas_pci_driver.driver,
 			   &driver_attr_release_date);
 	driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
+	driver_remove_file(&megasas_pci_driver.driver,
+			   &driver_attr_support_nvme_encapsulation);
 
 	pci_unregister_driver(&megasas_pci_driver);
 	unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");
diff --git a/drivers/scsi/megaraid/megaraid_sas_fp.c b/drivers/scsi/megaraid/megaraid_sas_fp.c
index bfad9bfc313f..59ecbb3b53b5 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fp.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fp.c
@@ -168,7 +168,7 @@ static struct MR_LD_SPAN *MR_LdSpanPtrGet(u32 ld, u32 span,
 /*
  * This function will Populate Driver Map using firmware raid map
  */
-void MR_PopulateDrvRaidMap(struct megasas_instance *instance)
+static int MR_PopulateDrvRaidMap(struct megasas_instance *instance, u64 map_id)
 {
 	struct fusion_context *fusion = instance->ctrl_context;
 	struct MR_FW_RAID_MAP_ALL     *fw_map_old    = NULL;
@@ -181,7 +181,7 @@ void MR_PopulateDrvRaidMap(struct megasas_instance *instance)
 
 
 	struct MR_DRV_RAID_MAP_ALL *drv_map =
-			fusion->ld_drv_map[(instance->map_id & 1)];
+			fusion->ld_drv_map[(map_id & 1)];
 	struct MR_DRV_RAID_MAP *pDrvRaidMap = &drv_map->raidMap;
 	void *raid_map_data = NULL;
 
@@ -190,7 +190,7 @@ void MR_PopulateDrvRaidMap(struct megasas_instance *instance)
 	       0xff, (sizeof(u16) * MAX_LOGICAL_DRIVES_DYN));
 
 	if (instance->max_raid_mapsize) {
-		fw_map_dyn = fusion->ld_map[(instance->map_id & 1)];
+		fw_map_dyn = fusion->ld_map[(map_id & 1)];
 		desc_table =
 		(struct MR_RAID_MAP_DESC_TABLE *)((void *)fw_map_dyn + le32_to_cpu(fw_map_dyn->desc_table_offset));
 		if (desc_table != fw_map_dyn->raid_map_desc_table)
@@ -255,11 +255,11 @@ void MR_PopulateDrvRaidMap(struct megasas_instance *instance)
 
 	} else if (instance->supportmax256vd) {
 		fw_map_ext =
-			(struct MR_FW_RAID_MAP_EXT *)fusion->ld_map[(instance->map_id & 1)];
+			(struct MR_FW_RAID_MAP_EXT *)fusion->ld_map[(map_id & 1)];
 		ld_count = (u16)le16_to_cpu(fw_map_ext->ldCount);
 		if (ld_count > MAX_LOGICAL_DRIVES_EXT) {
 			dev_dbg(&instance->pdev->dev, "megaraid_sas: LD count exposed in RAID map in not valid\n");
-			return;
+			return 1;
 		}
 
 		pDrvRaidMap->ldCount = (__le16)cpu_to_le16(ld_count);
@@ -282,9 +282,15 @@ void MR_PopulateDrvRaidMap(struct megasas_instance *instance)
 			cpu_to_le32(sizeof(struct MR_FW_RAID_MAP_EXT));
 	} else {
 		fw_map_old = (struct MR_FW_RAID_MAP_ALL *)
-			fusion->ld_map[(instance->map_id & 1)];
+				fusion->ld_map[(map_id & 1)];
 		pFwRaidMap = &fw_map_old->raidMap;
 		ld_count = (u16)le32_to_cpu(pFwRaidMap->ldCount);
+		if (ld_count > MAX_LOGICAL_DRIVES) {
+			dev_dbg(&instance->pdev->dev,
+				"LD count exposed in RAID map in not valid\n");
+			return 1;
+		}
+
 		pDrvRaidMap->totalSize = pFwRaidMap->totalSize;
 		pDrvRaidMap->ldCount = (__le16)cpu_to_le16(ld_count);
 		pDrvRaidMap->fpPdIoTimeoutSec = pFwRaidMap->fpPdIoTimeoutSec;
@@ -300,12 +306,14 @@ void MR_PopulateDrvRaidMap(struct megasas_instance *instance)
 			sizeof(struct MR_DEV_HANDLE_INFO) *
 			MAX_RAIDMAP_PHYSICAL_DEVICES);
 	}
+
+	return 0;
 }
 
 /*
  * This function will validate Map info data provided by FW
  */
-u8 MR_ValidateMapInfo(struct megasas_instance *instance)
+u8 MR_ValidateMapInfo(struct megasas_instance *instance, u64 map_id)
 {
 	struct fusion_context *fusion;
 	struct MR_DRV_RAID_MAP_ALL *drv_map;
@@ -317,11 +325,11 @@ u8 MR_ValidateMapInfo(struct megasas_instance *instance)
 	u16 ld;
 	u32 expected_size;
 
-
-	MR_PopulateDrvRaidMap(instance);
+	if (MR_PopulateDrvRaidMap(instance, map_id))
+		return 0;
 
 	fusion = instance->ctrl_context;
-	drv_map = fusion->ld_drv_map[(instance->map_id & 1)];
+	drv_map = fusion->ld_drv_map[(map_id & 1)];
 	pDrvRaidMap = &drv_map->raidMap;
 
 	lbInfo = fusion->load_balance_info;
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 65dc4fea6352..073ced07e662 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -983,7 +983,7 @@ megasas_ioc_init_fusion(struct megasas_instance *instance)
 	MFI_CAPABILITIES *drv_ops;
 	u32 scratch_pad_2;
 	unsigned long flags;
-	struct timeval tv;
+	ktime_t time;
 	bool cur_fw_64bit_dma_capable;
 
 	fusion = instance->ctrl_context;
@@ -1042,13 +1042,12 @@ megasas_ioc_init_fusion(struct megasas_instance *instance)
 	IOCInitMessage->HostMSIxVectors = instance->msix_vectors;
 	IOCInitMessage->HostPageSize = MR_DEFAULT_NVME_PAGE_SHIFT;
 
-	do_gettimeofday(&tv);
+	time = ktime_get_real();
 	/* Convert to milliseconds as per FW requirement */
-	IOCInitMessage->TimeStamp = cpu_to_le64((tv.tv_sec * 1000) +
-						(tv.tv_usec / 1000));
+	IOCInitMessage->TimeStamp = cpu_to_le64(ktime_to_ms(time));
 
 	init_frame = (struct megasas_init_frame *)cmd->frame;
-	memset(init_frame, 0, MEGAMFI_FRAME_SIZE);
+	memset(init_frame, 0, IOC_INIT_FRAME_SIZE);
 
 	frame_hdr = &cmd->frame->hdr;
 	frame_hdr->cmd_status = 0xFF;
@@ -1080,6 +1079,7 @@ megasas_ioc_init_fusion(struct megasas_instance *instance)
 
 	drv_ops->mfi_capabilities.support_qd_throttling = 1;
 	drv_ops->mfi_capabilities.support_pd_map_target_id = 1;
+	drv_ops->mfi_capabilities.support_nvme_passthru = 1;
 
 	if (instance->consistent_mask_64bit)
 		drv_ops->mfi_capabilities.support_64bit_mode = 1;
@@ -1320,7 +1320,7 @@ megasas_get_map_info(struct megasas_instance *instance)
 
 	fusion->fast_path_io = 0;
 	if (!megasas_get_ld_map_info(instance)) {
-		if (MR_ValidateMapInfo(instance)) {
+		if (MR_ValidateMapInfo(instance, instance->map_id)) {
 			fusion->fast_path_io = 1;
 			return 0;
 		}
@@ -1603,7 +1603,7 @@ static int megasas_alloc_ioc_init_frame(struct megasas_instance *instance)
 
 	fusion = instance->ctrl_context;
 
-	cmd = kmalloc(sizeof(struct megasas_cmd), GFP_KERNEL);
+	cmd = kzalloc(sizeof(struct megasas_cmd), GFP_KERNEL);
 
 	if (!cmd) {
 		dev_err(&instance->pdev->dev, "Failed from func: %s line: %d\n",
@@ -2664,16 +2664,6 @@ megasas_build_ldio_fusion(struct megasas_instance *instance,
 	praid_context = &io_request->RaidContext;
 
 	if (instance->adapter_type == VENTURA_SERIES) {
-		spin_lock_irqsave(&instance->stream_lock, spinlock_flags);
-		megasas_stream_detect(instance, cmd, &io_info);
-		spin_unlock_irqrestore(&instance->stream_lock, spinlock_flags);
-		/* In ventura if stream detected for a read and it is read ahead
-		 *  capable make this IO as LDIO
-		 */
-		if (is_stream_detected(&io_request->RaidContext.raid_context_g35) &&
-		    io_info.isRead && io_info.ra_capable)
-			fp_possible = false;
-
 		/* FP for Optimal raid level 1.
 		 * All large RAID-1 writes (> 32 KiB, both WT and WB modes)
 		 * are built by the driver as LD I/Os.
@@ -2699,6 +2689,20 @@ megasas_build_ldio_fusion(struct megasas_instance *instance,
 			}
 		}
 
+		if (!fp_possible ||
+		    (io_info.isRead && io_info.ra_capable)) {
+			spin_lock_irqsave(&instance->stream_lock,
+					  spinlock_flags);
+			megasas_stream_detect(instance, cmd, &io_info);
+			spin_unlock_irqrestore(&instance->stream_lock,
+					       spinlock_flags);
+			/* In ventura if stream detected for a read and it is
+			 * read ahead capable make this IO as LDIO
+			 */
+			if (is_stream_detected(&io_request->RaidContext.raid_context_g35))
+				fp_possible = false;
+		}
+
 		/* If raid is NULL, set CPU affinity to default CPU0 */
 		if (raid)
 			megasas_set_raidflag_cpu_affinity(praid_context,
@@ -3953,6 +3957,8 @@ void megasas_refire_mgmt_cmd(struct megasas_instance *instance)
 	union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
 	u16 smid;
 	bool refire_cmd = 0;
+	u8 result;
+	u32 opcode = 0;
 
 	fusion = instance->ctrl_context;
 
@@ -3963,29 +3969,53 @@ void megasas_refire_mgmt_cmd(struct megasas_instance *instance)
 		cmd_fusion = fusion->cmd_list[j];
 		cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
 		smid = le16_to_cpu(cmd_mfi->context.smid);
+		result = REFIRE_CMD;
 
 		if (!smid)
 			continue;
 
-		/* Do not refire shutdown command */
-		if (le32_to_cpu(cmd_mfi->frame->dcmd.opcode) ==
-			MR_DCMD_CTRL_SHUTDOWN) {
-			cmd_mfi->frame->dcmd.cmd_status = MFI_STAT_OK;
-			megasas_complete_cmd(instance, cmd_mfi, DID_OK);
-			continue;
+		req_desc = megasas_get_request_descriptor(instance, smid - 1);
+
+		switch (cmd_mfi->frame->hdr.cmd) {
+		case MFI_CMD_DCMD:
+			opcode = le32_to_cpu(cmd_mfi->frame->dcmd.opcode);
+			 /* Do not refire shutdown command */
+			if (opcode == MR_DCMD_CTRL_SHUTDOWN) {
+				cmd_mfi->frame->dcmd.cmd_status = MFI_STAT_OK;
+				result = COMPLETE_CMD;
+				break;
+			}
+
+			refire_cmd = ((opcode != MR_DCMD_LD_MAP_GET_INFO)) &&
+				      (opcode != MR_DCMD_SYSTEM_PD_MAP_GET_INFO) &&
+				      !(cmd_mfi->flags & DRV_DCMD_SKIP_REFIRE);
+
+			if (!refire_cmd)
+				result = RETURN_CMD;
+
+			break;
+		case MFI_CMD_NVME:
+			if (!instance->support_nvme_passthru) {
+				cmd_mfi->frame->hdr.cmd_status = MFI_STAT_INVALID_CMD;
+				result = COMPLETE_CMD;
+			}
+
+			break;
+		default:
+			break;
 		}
 
-		req_desc = megasas_get_request_descriptor
-					(instance, smid - 1);
-		refire_cmd = req_desc && ((cmd_mfi->frame->dcmd.opcode !=
-				cpu_to_le32(MR_DCMD_LD_MAP_GET_INFO)) &&
-				 (cmd_mfi->frame->dcmd.opcode !=
-				cpu_to_le32(MR_DCMD_SYSTEM_PD_MAP_GET_INFO)))
-				&& !(cmd_mfi->flags & DRV_DCMD_SKIP_REFIRE);
-		if (refire_cmd)
+		switch (result) {
+		case REFIRE_CMD:
 			megasas_fire_cmd_fusion(instance, req_desc);
-		else
+			break;
+		case RETURN_CMD:
 			megasas_return_cmd(instance, cmd_mfi);
+			break;
+		case COMPLETE_CMD:
+			megasas_complete_cmd(instance, cmd_mfi, DID_OK);
+			break;
+		}
 	}
 }
 
@@ -4625,8 +4655,6 @@ transition_to_ready:
 					continue;
 			}
 
-			megasas_refire_mgmt_cmd(instance);
-
 			if (megasas_get_ctrl_info(instance)) {
 				dev_info(&instance->pdev->dev,
 					"Failed from %s %d\n",
@@ -4635,6 +4663,9 @@ transition_to_ready:
 				retval = FAILED;
 				goto out;
 			}
+
+			megasas_refire_mgmt_cmd(instance);
+
 			/* Reset load balance info */
 			if (fusion->load_balance_info)
 				memset(fusion->load_balance_info, 0,
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.h b/drivers/scsi/megaraid/megaraid_sas_fusion.h
index 1814d79cb98d..8e5ebee6517f 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.h
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.h
@@ -1344,6 +1344,12 @@ union desc_value {
 	} u;
 };
 
+enum CMD_RET_VALUES {
+	REFIRE_CMD = 1,
+	COMPLETE_CMD = 2,
+	RETURN_CMD = 3,
+};
+
 void megasas_free_cmds_fusion(struct megasas_instance *instance);
 int megasas_ioc_init_fusion(struct megasas_instance *instance);
 u8 megasas_get_map_info(struct megasas_instance *instance);
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index 8027de465d47..13d6e4ec3022 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -888,6 +888,22 @@ _base_async_event(struct MPT3SAS_ADAPTER *ioc, u8 msix_index, u32 reply)
 	return 1;
 }
 
+static struct scsiio_tracker *
+_get_st_from_smid(struct MPT3SAS_ADAPTER *ioc, u16 smid)
+{
+	struct scsi_cmnd *cmd;
+
+	if (WARN_ON(!smid) ||
+	    WARN_ON(smid >= ioc->hi_priority_smid))
+		return NULL;
+
+	cmd = mpt3sas_scsih_scsi_lookup_get(ioc, smid);
+	if (cmd)
+		return scsi_cmd_priv(cmd);
+
+	return NULL;
+}
+
 /**
  * _base_get_cb_idx - obtain the callback index
  * @ioc: per adapter object
@@ -899,19 +915,25 @@ static u8
 _base_get_cb_idx(struct MPT3SAS_ADAPTER *ioc, u16 smid)
 {
 	int i;
-	u8 cb_idx;
+	u16 ctl_smid = ioc->scsiio_depth - INTERNAL_SCSIIO_CMDS_COUNT + 1;
+	u8 cb_idx = 0xFF;
 
 	if (smid < ioc->hi_priority_smid) {
-		i = smid - 1;
-		cb_idx = ioc->scsi_lookup[i].cb_idx;
+		struct scsiio_tracker *st;
+
+		if (smid < ctl_smid) {
+			st = _get_st_from_smid(ioc, smid);
+			if (st)
+				cb_idx = st->cb_idx;
+		} else if (smid == ctl_smid)
+			cb_idx = ioc->ctl_cb_idx;
 	} else if (smid < ioc->internal_smid) {
 		i = smid - ioc->hi_priority_smid;
 		cb_idx = ioc->hpr_lookup[i].cb_idx;
 	} else if (smid <= ioc->hba_queue_depth) {
 		i = smid - ioc->internal_smid;
 		cb_idx = ioc->internal_lookup[i].cb_idx;
-	} else
-		cb_idx = 0xFF;
+	}
 	return cb_idx;
 }
 
@@ -1287,14 +1309,16 @@ _base_add_sg_single_64(void *paddr, u32 flags_length, dma_addr_t dma_addr)
 /**
  * _base_get_chain_buffer_tracker - obtain chain tracker
  * @ioc: per adapter object
- * @smid: smid associated to an IO request
+ * @scmd: SCSI commands of the IO request
  *
  * Returns chain tracker(from ioc->free_chain_list)
  */
 static struct chain_tracker *
-_base_get_chain_buffer_tracker(struct MPT3SAS_ADAPTER *ioc, u16 smid)
+_base_get_chain_buffer_tracker(struct MPT3SAS_ADAPTER *ioc,
+			       struct scsi_cmnd *scmd)
 {
 	struct chain_tracker *chain_req;
+	struct scsiio_tracker *st = scsi_cmd_priv(scmd);
 	unsigned long flags;
 
 	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
@@ -1307,8 +1331,7 @@ _base_get_chain_buffer_tracker(struct MPT3SAS_ADAPTER *ioc, u16 smid)
 	chain_req = list_entry(ioc->free_chain_list.next,
 	    struct chain_tracker, tracker_list);
 	list_del_init(&chain_req->tracker_list);
-	list_add_tail(&chain_req->tracker_list,
-	    &ioc->scsi_lookup[smid - 1].chain_list);
+	list_add_tail(&chain_req->tracker_list, &st->chain_list);
 	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
 	return chain_req;
 }
@@ -1923,7 +1946,7 @@ _base_build_sg_scmd(struct MPT3SAS_ADAPTER *ioc,
 
 	/* initializing the chain flags and pointers */
 	chain_flags = MPI2_SGE_FLAGS_CHAIN_ELEMENT << MPI2_SGE_FLAGS_SHIFT;
-	chain_req = _base_get_chain_buffer_tracker(ioc, smid);
+	chain_req = _base_get_chain_buffer_tracker(ioc, scmd);
 	if (!chain_req)
 		return -1;
 	chain = chain_req->chain_buffer;
@@ -1963,7 +1986,7 @@ _base_build_sg_scmd(struct MPT3SAS_ADAPTER *ioc,
 			sges_in_segment--;
 		}
 
-		chain_req = _base_get_chain_buffer_tracker(ioc, smid);
+		chain_req = _base_get_chain_buffer_tracker(ioc, scmd);
 		if (!chain_req)
 			return -1;
 		chain = chain_req->chain_buffer;
@@ -2066,7 +2089,7 @@ _base_build_sg_scmd_ieee(struct MPT3SAS_ADAPTER *ioc,
 	}
 
 	/* initializing the pointers */
-	chain_req = _base_get_chain_buffer_tracker(ioc, smid);
+	chain_req = _base_get_chain_buffer_tracker(ioc, scmd);
 	if (!chain_req)
 		return -1;
 	chain = chain_req->chain_buffer;
@@ -2097,7 +2120,7 @@ _base_build_sg_scmd_ieee(struct MPT3SAS_ADAPTER *ioc,
 			sges_in_segment--;
 		}
 
-		chain_req = _base_get_chain_buffer_tracker(ioc, smid);
+		chain_req = _base_get_chain_buffer_tracker(ioc, scmd);
 		if (!chain_req)
 			return -1;
 		chain = chain_req->chain_buffer;
@@ -2742,7 +2765,7 @@ mpt3sas_base_get_sense_buffer_dma(struct MPT3SAS_ADAPTER *ioc, u16 smid)
 void *
 mpt3sas_base_get_pcie_sgl(struct MPT3SAS_ADAPTER *ioc, u16 smid)
 {
-	return (void *)(ioc->scsi_lookup[smid - 1].pcie_sg_list.pcie_sgl);
+	return (void *)(ioc->pcie_sg_lookup[smid - 1].pcie_sgl);
 }
 
 /**
@@ -2755,7 +2778,7 @@ mpt3sas_base_get_pcie_sgl(struct MPT3SAS_ADAPTER *ioc, u16 smid)
 dma_addr_t
 mpt3sas_base_get_pcie_sgl_dma(struct MPT3SAS_ADAPTER *ioc, u16 smid)
 {
-	return ioc->scsi_lookup[smid - 1].pcie_sg_list.pcie_sgl_dma;
+	return ioc->pcie_sg_lookup[smid - 1].pcie_sgl_dma;
 }
 
 /**
@@ -2822,26 +2845,15 @@ u16
 mpt3sas_base_get_smid_scsiio(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx,
 	struct scsi_cmnd *scmd)
 {
-	unsigned long flags;
-	struct scsiio_tracker *request;
+	struct scsiio_tracker *request = scsi_cmd_priv(scmd);
+	unsigned int tag = scmd->request->tag;
 	u16 smid;
 
-	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
-	if (list_empty(&ioc->free_list)) {
-		spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
-		pr_err(MPT3SAS_FMT "%s: smid not available\n",
-		    ioc->name, __func__);
-		return 0;
-	}
-
-	request = list_entry(ioc->free_list.next,
-	    struct scsiio_tracker, tracker_list);
-	request->scmd = scmd;
+	smid = tag + 1;
 	request->cb_idx = cb_idx;
-	smid = request->smid;
 	request->msix_io = _base_get_msix_index(ioc);
-	list_del(&request->tracker_list);
-	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+	request->smid = smid;
+	INIT_LIST_HEAD(&request->chain_list);
 	return smid;
 }
 
@@ -2874,6 +2886,35 @@ mpt3sas_base_get_smid_hpr(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx)
 	return smid;
 }
 
+static void
+_base_recovery_check(struct MPT3SAS_ADAPTER *ioc)
+{
+	/*
+	 * See _wait_for_commands_to_complete() call with regards to this code.
+	 */
+	if (ioc->shost_recovery && ioc->pending_io_count) {
+		ioc->pending_io_count = atomic_read(&ioc->shost->host_busy);
+		if (ioc->pending_io_count == 0)
+			wake_up(&ioc->reset_wq);
+	}
+}
+
+void mpt3sas_base_clear_st(struct MPT3SAS_ADAPTER *ioc,
+			   struct scsiio_tracker *st)
+{
+	if (WARN_ON(st->smid == 0))
+		return;
+	st->cb_idx = 0xFF;
+	st->direct_io = 0;
+	if (!list_empty(&st->chain_list)) {
+		unsigned long flags;
+
+		spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+		list_splice_init(&st->chain_list, &ioc->free_chain_list);
+		spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+	}
+}
+
 /**
  * mpt3sas_base_free_smid - put smid back on free_list
  * @ioc: per adapter object
@@ -2886,37 +2927,22 @@ mpt3sas_base_free_smid(struct MPT3SAS_ADAPTER *ioc, u16 smid)
 {
 	unsigned long flags;
 	int i;
-	struct chain_tracker *chain_req, *next;
 
-	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
 	if (smid < ioc->hi_priority_smid) {
-		/* scsiio queue */
-		i = smid - 1;
-		if (!list_empty(&ioc->scsi_lookup[i].chain_list)) {
-			list_for_each_entry_safe(chain_req, next,
-			    &ioc->scsi_lookup[i].chain_list, tracker_list) {
-				list_del_init(&chain_req->tracker_list);
-				list_add(&chain_req->tracker_list,
-				    &ioc->free_chain_list);
-			}
-		}
-		ioc->scsi_lookup[i].cb_idx = 0xFF;
-		ioc->scsi_lookup[i].scmd = NULL;
-		ioc->scsi_lookup[i].direct_io = 0;
-		list_add(&ioc->scsi_lookup[i].tracker_list, &ioc->free_list);
-		spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+		struct scsiio_tracker *st;
 
-		/*
-		 * See _wait_for_commands_to_complete() call with regards
-		 * to this code.
-		 */
-		if (ioc->shost_recovery && ioc->pending_io_count) {
-			if (ioc->pending_io_count == 1)
-				wake_up(&ioc->reset_wq);
-			ioc->pending_io_count--;
+		st = _get_st_from_smid(ioc, smid);
+		if (!st) {
+			_base_recovery_check(ioc);
+			return;
 		}
+		mpt3sas_base_clear_st(ioc, st);
+		_base_recovery_check(ioc);
 		return;
-	} else if (smid < ioc->internal_smid) {
+	}
+
+	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+	if (smid < ioc->internal_smid) {
 		/* hi-priority */
 		i = smid - ioc->hi_priority_smid;
 		ioc->hpr_lookup[i].cb_idx = 0xFF;
@@ -3789,13 +3815,12 @@ _base_release_memory_pools(struct MPT3SAS_ADAPTER *ioc)
 
 	if (ioc->pcie_sgl_dma_pool) {
 		for (i = 0; i < ioc->scsiio_depth; i++) {
-			if (ioc->scsi_lookup[i].pcie_sg_list.pcie_sgl)
-				pci_pool_free(ioc->pcie_sgl_dma_pool,
-				ioc->scsi_lookup[i].pcie_sg_list.pcie_sgl,
-				ioc->scsi_lookup[i].pcie_sg_list.pcie_sgl_dma);
+			dma_pool_free(ioc->pcie_sgl_dma_pool,
+					ioc->pcie_sg_lookup[i].pcie_sgl,
+					ioc->pcie_sg_lookup[i].pcie_sgl_dma);
 		}
 		if (ioc->pcie_sgl_dma_pool)
-			pci_pool_destroy(ioc->pcie_sgl_dma_pool);
+			dma_pool_destroy(ioc->pcie_sgl_dma_pool);
 	}
 
 	if (ioc->config_page) {
@@ -3806,10 +3831,6 @@ _base_release_memory_pools(struct MPT3SAS_ADAPTER *ioc)
 		    ioc->config_page, ioc->config_page_dma);
 	}
 
-	if (ioc->scsi_lookup) {
-		free_pages((ulong)ioc->scsi_lookup, ioc->scsi_lookup_pages);
-		ioc->scsi_lookup = NULL;
-	}
 	kfree(ioc->hpr_lookup);
 	kfree(ioc->internal_lookup);
 	if (ioc->chain_lookup) {
@@ -4110,16 +4131,6 @@ _base_allocate_memory_pools(struct MPT3SAS_ADAPTER *ioc)
 	    ioc->name, (unsigned long long) ioc->request_dma));
 	total_sz += sz;
 
-	sz = ioc->scsiio_depth * sizeof(struct scsiio_tracker);
-	ioc->scsi_lookup_pages = get_order(sz);
-	ioc->scsi_lookup = (struct scsiio_tracker *)__get_free_pages(
-	    GFP_KERNEL, ioc->scsi_lookup_pages);
-	if (!ioc->scsi_lookup) {
-		pr_err(MPT3SAS_FMT "scsi_lookup: get_free_pages failed, sz(%d)\n",
-			ioc->name, (int)sz);
-		goto out;
-	}
-
 	dinitprintk(ioc, pr_info(MPT3SAS_FMT "scsiio(0x%p): depth(%d)\n",
 		ioc->name, ioc->request, ioc->scsiio_depth));
 
@@ -4202,23 +4213,29 @@ _base_allocate_memory_pools(struct MPT3SAS_ADAPTER *ioc)
 		nvme_blocks_needed /= (ioc->page_size - NVME_PRP_SIZE);
 		nvme_blocks_needed++;
 
+		sz = sizeof(struct pcie_sg_list) * ioc->scsiio_depth;
+		ioc->pcie_sg_lookup = kzalloc(sz, GFP_KERNEL);
+		if (!ioc->pcie_sg_lookup) {
+			pr_info(MPT3SAS_FMT
+			    "PCIe SGL lookup: kzalloc failed\n", ioc->name);
+			goto out;
+		}
 		sz = nvme_blocks_needed * ioc->page_size;
 		ioc->pcie_sgl_dma_pool =
-			pci_pool_create("PCIe SGL pool", ioc->pdev, sz, 16, 0);
+			dma_pool_create("PCIe SGL pool", &ioc->pdev->dev, sz, 16, 0);
 		if (!ioc->pcie_sgl_dma_pool) {
 			pr_info(MPT3SAS_FMT
-			    "PCIe SGL pool: pci_pool_create failed\n",
+			    "PCIe SGL pool: dma_pool_create failed\n",
 			    ioc->name);
 			goto out;
 		}
 		for (i = 0; i < ioc->scsiio_depth; i++) {
-			ioc->scsi_lookup[i].pcie_sg_list.pcie_sgl =
-					pci_pool_alloc(ioc->pcie_sgl_dma_pool,
-					GFP_KERNEL,
-				&ioc->scsi_lookup[i].pcie_sg_list.pcie_sgl_dma);
-			if (!ioc->scsi_lookup[i].pcie_sg_list.pcie_sgl) {
+			ioc->pcie_sg_lookup[i].pcie_sgl = dma_pool_alloc(
+				ioc->pcie_sgl_dma_pool, GFP_KERNEL,
+				&ioc->pcie_sg_lookup[i].pcie_sgl_dma);
+			if (!ioc->pcie_sg_lookup[i].pcie_sgl) {
 				pr_info(MPT3SAS_FMT
-				    "PCIe SGL pool: pci_pool_alloc failed\n",
+				    "PCIe SGL pool: dma_pool_alloc failed\n",
 				    ioc->name);
 				goto out;
 			}
@@ -5766,19 +5783,7 @@ _base_make_ioc_operational(struct MPT3SAS_ADAPTER *ioc)
 		kfree(delayed_event_ack);
 	}
 
-	/* initialize the scsi lookup free list */
 	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
-	INIT_LIST_HEAD(&ioc->free_list);
-	smid = 1;
-	for (i = 0; i < ioc->scsiio_depth; i++, smid++) {
-		INIT_LIST_HEAD(&ioc->scsi_lookup[i].chain_list);
-		ioc->scsi_lookup[i].cb_idx = 0xFF;
-		ioc->scsi_lookup[i].smid = smid;
-		ioc->scsi_lookup[i].scmd = NULL;
-		ioc->scsi_lookup[i].direct_io = 0;
-		list_add_tail(&ioc->scsi_lookup[i].tracker_list,
-		    &ioc->free_list);
-	}
 
 	/* hi-priority queue */
 	INIT_LIST_HEAD(&ioc->hpr_free_list);
@@ -6292,15 +6297,13 @@ _base_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase)
  * _wait_for_commands_to_complete - reset controller
  * @ioc: Pointer to MPT_ADAPTER structure
  *
- * This function waiting(3s) for all pending commands to complete
+ * This function is waiting 10s for all pending commands to complete
  * prior to putting controller in reset.
  */
 static void
 _wait_for_commands_to_complete(struct MPT3SAS_ADAPTER *ioc)
 {
 	u32 ioc_state;
-	unsigned long flags;
-	u16 i;
 
 	ioc->pending_io_count = 0;
 
@@ -6309,11 +6312,7 @@ _wait_for_commands_to_complete(struct MPT3SAS_ADAPTER *ioc)
 		return;
 
 	/* pending command count */
-	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
-	for (i = 0; i < ioc->scsiio_depth; i++)
-		if (ioc->scsi_lookup[i].cb_idx != 0xFF)
-			ioc->pending_io_count++;
-	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+	ioc->pending_io_count = atomic_read(&ioc->shost->host_busy);
 
 	if (!ioc->pending_io_count)
 		return;
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h
index 60f42ca3954f..789bc421424b 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.h
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.h
@@ -772,20 +772,17 @@ struct chain_tracker {
 /**
  * struct scsiio_tracker - scsi mf request tracker
  * @smid: system message id
- * @scmd: scsi request pointer
  * @cb_idx: callback index
  * @direct_io: To indicate whether I/O is direct (WARPDRIVE)
- * @tracker_list: list of free request (ioc->free_list)
+ * @chain_list: list of associated firmware chain tracker
  * @msix_io: IO's msix
  */
 struct scsiio_tracker {
 	u16	smid;
-	struct scsi_cmnd *scmd;
 	u8	cb_idx;
 	u8	direct_io;
 	struct pcie_sg_list pcie_sg_list;
 	struct list_head chain_list;
-	struct list_head tracker_list;
 	u16     msix_io;
 };
 
@@ -1248,10 +1245,8 @@ struct MPT3SAS_ADAPTER {
 	u8		*request;
 	dma_addr_t	request_dma;
 	u32		request_dma_sz;
-	struct scsiio_tracker *scsi_lookup;
-	ulong		scsi_lookup_pages;
+	struct pcie_sg_list *pcie_sg_lookup;
 	spinlock_t	scsi_lookup_lock;
-	struct list_head free_list;
 	int		pending_io_count;
 	wait_queue_head_t reset_wq;
 
@@ -1270,6 +1265,7 @@ struct MPT3SAS_ADAPTER {
 	u16		chains_needed_per_io;
 	u32		chain_depth;
 	u16		chain_segment_sz;
+	u16		chains_per_prp_buffer;
 
 	/* hi-priority queue */
 	u16		hi_priority_smid;
@@ -1401,7 +1397,9 @@ void mpt3sas_base_sync_reply_irqs(struct MPT3SAS_ADAPTER *ioc);
 /* hi-priority queue */
 u16 mpt3sas_base_get_smid_hpr(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx);
 u16 mpt3sas_base_get_smid_scsiio(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx,
-	struct scsi_cmnd *scmd);
+		struct scsi_cmnd *scmd);
+void mpt3sas_base_clear_st(struct MPT3SAS_ADAPTER *ioc,
+		struct scsiio_tracker *st);
 
 u16 mpt3sas_base_get_smid(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx);
 void mpt3sas_base_free_smid(struct MPT3SAS_ADAPTER *ioc, u16 smid);
@@ -1437,16 +1435,16 @@ int mpt3sas_port_enable(struct MPT3SAS_ADAPTER *ioc);
 
 
 /* scsih shared API */
+struct scsi_cmnd *mpt3sas_scsih_scsi_lookup_get(struct MPT3SAS_ADAPTER *ioc,
+	u16 smid);
 u8 mpt3sas_scsih_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
 	u32 reply);
 void mpt3sas_scsih_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase);
 
 int mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle,
-	uint channel, uint id, uint lun, u8 type, u16 smid_task,
-	ulong timeout);
+	u64 lun, u8 type, u16 smid_task, u16 msix_task, ulong timeout);
 int mpt3sas_scsih_issue_locked_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle,
-	uint channel, uint id, uint lun, u8 type, u16 smid_task,
-	ulong timeout);
+	u64 lun, u8 type, u16 smid_task, u16 msix_task, ulong timeout);
 
 void mpt3sas_scsih_set_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle);
 void mpt3sas_scsih_clear_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle);
@@ -1613,14 +1611,9 @@ void mpt3sas_trigger_mpi(struct MPT3SAS_ADAPTER *ioc, u16 ioc_status,
 u8 mpt3sas_get_num_volumes(struct MPT3SAS_ADAPTER *ioc);
 void mpt3sas_init_warpdrive_properties(struct MPT3SAS_ADAPTER *ioc,
 	struct _raid_device *raid_device);
-u8
-mpt3sas_scsi_direct_io_get(struct MPT3SAS_ADAPTER *ioc, u16 smid);
-void
-mpt3sas_scsi_direct_io_set(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 direct_io);
 void
 mpt3sas_setup_direct_io(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
-	struct _raid_device *raid_device, Mpi25SCSIIORequest_t *mpi_request,
-	u16 smid);
+	struct _raid_device *raid_device, Mpi25SCSIIORequest_t *mpi_request);
 
 /* NCQ Prio Handling Check */
 bool scsih_ncq_prio_supp(struct scsi_device *sdev);
diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.c b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
index 537de1b7e8e5..9cddc3074cd1 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_ctl.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
@@ -567,11 +567,10 @@ _ctl_set_task_mid(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command *karg,
 	Mpi2SCSITaskManagementRequest_t *tm_request)
 {
 	u8 found = 0;
-	u16 i;
+	u16 smid;
 	u16 handle;
 	struct scsi_cmnd *scmd;
 	struct MPT3SAS_DEVICE *priv_data;
-	unsigned long flags;
 	Mpi2SCSITaskManagementReply_t *tm_reply;
 	u32 sz;
 	u32 lun;
@@ -587,11 +586,11 @@ _ctl_set_task_mid(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command *karg,
 	lun = scsilun_to_int((struct scsi_lun *)tm_request->LUN);
 
 	handle = le16_to_cpu(tm_request->DevHandle);
-	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
-	for (i = ioc->scsiio_depth; i && !found; i--) {
-		scmd = ioc->scsi_lookup[i - 1].scmd;
-		if (scmd == NULL || scmd->device == NULL ||
-		    scmd->device->hostdata == NULL)
+	for (smid = ioc->scsiio_depth; smid && !found; smid--) {
+		struct scsiio_tracker *st;
+
+		scmd = mpt3sas_scsih_scsi_lookup_get(ioc, smid);
+		if (!scmd)
 			continue;
 		if (lun != scmd->device->lun)
 			continue;
@@ -600,10 +599,10 @@ _ctl_set_task_mid(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command *karg,
 			continue;
 		if (priv_data->sas_target->handle != handle)
 			continue;
-		tm_request->TaskMID = cpu_to_le16(ioc->scsi_lookup[i - 1].smid);
+		st = scsi_cmd_priv(scmd);
+		tm_request->TaskMID = cpu_to_le16(st->smid);
 		found = 1;
 	}
-	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
 
 	if (!found) {
 		dctlprintk(ioc, pr_info(MPT3SAS_FMT
@@ -724,14 +723,8 @@ _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
 			goto out;
 		}
 	} else {
-
-		smid = mpt3sas_base_get_smid_scsiio(ioc, ioc->ctl_cb_idx, NULL);
-		if (!smid) {
-			pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
-			    ioc->name, __func__);
-			ret = -EAGAIN;
-			goto out;
-		}
+		/* Use first reserved smid for passthrough ioctls */
+		smid = ioc->scsiio_depth - INTERNAL_SCSIIO_CMDS_COUNT + 1;
 	}
 
 	ret = 0;
@@ -1081,8 +1074,8 @@ _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
 				le16_to_cpu(mpi_request->FunctionDependent1));
 			mpt3sas_halt_firmware(ioc);
 			mpt3sas_scsih_issue_locked_tm(ioc,
-			    le16_to_cpu(mpi_request->FunctionDependent1), 0, 0,
-			    0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 30);
+			    le16_to_cpu(mpi_request->FunctionDependent1), 0,
+			    MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 0, 30);
 		} else
 			mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER);
 	}
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index b258f210120a..74fca184dba9 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -1445,156 +1445,31 @@ _scsih_is_nvme_device(u32 device_info)
 }
 
 /**
- * _scsih_scsi_lookup_get - returns scmd entry
- * @ioc: per adapter object
- * @smid: system request message index
- *
- * Returns the smid stored scmd pointer.
- */
-static struct scsi_cmnd *
-_scsih_scsi_lookup_get(struct MPT3SAS_ADAPTER *ioc, u16 smid)
-{
-	return ioc->scsi_lookup[smid - 1].scmd;
-}
-
-/**
- * __scsih_scsi_lookup_get_clear - returns scmd entry without
- *						holding any lock.
+ * mpt3sas_scsih_scsi_lookup_get - returns scmd entry
  * @ioc: per adapter object
  * @smid: system request message index
  *
  * Returns the smid stored scmd pointer.
  * Then will dereference the stored scmd pointer.
  */
-static inline struct scsi_cmnd *
-__scsih_scsi_lookup_get_clear(struct MPT3SAS_ADAPTER *ioc,
-		u16 smid)
+struct scsi_cmnd *
+mpt3sas_scsih_scsi_lookup_get(struct MPT3SAS_ADAPTER *ioc, u16 smid)
 {
 	struct scsi_cmnd *scmd = NULL;
+	struct scsiio_tracker *st;
 
-	swap(scmd, ioc->scsi_lookup[smid - 1].scmd);
-
-	return scmd;
-}
-
-/**
- * _scsih_scsi_lookup_get_clear - returns scmd entry
- * @ioc: per adapter object
- * @smid: system request message index
- *
- * Returns the smid stored scmd pointer.
- * Then will derefrence the stored scmd pointer.
- */
-static inline struct scsi_cmnd *
-_scsih_scsi_lookup_get_clear(struct MPT3SAS_ADAPTER *ioc, u16 smid)
-{
-	unsigned long flags;
-	struct scsi_cmnd *scmd;
-
-	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
-	scmd = __scsih_scsi_lookup_get_clear(ioc, smid);
-	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
-
-	return scmd;
-}
+	if (smid > 0  &&
+	    smid <= ioc->scsiio_depth - INTERNAL_SCSIIO_CMDS_COUNT) {
+		u32 unique_tag = smid - 1;
 
-/**
- * _scsih_scsi_lookup_find_by_scmd - scmd lookup
- * @ioc: per adapter object
- * @smid: system request message index
- * @scmd: pointer to scsi command object
- * Context: This function will acquire ioc->scsi_lookup_lock.
- *
- * This will search for a scmd pointer in the scsi_lookup array,
- * returning the revelent smid.  A returned value of zero means invalid.
- */
-static u16
-_scsih_scsi_lookup_find_by_scmd(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd
-	*scmd)
-{
-	u16 smid;
-	unsigned long	flags;
-	int i;
-
-	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
-	smid = 0;
-	for (i = 0; i < ioc->scsiio_depth; i++) {
-		if (ioc->scsi_lookup[i].scmd == scmd) {
-			smid = ioc->scsi_lookup[i].smid;
-			goto out;
-		}
-	}
- out:
-	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
-	return smid;
-}
-
-/**
- * _scsih_scsi_lookup_find_by_target - search for matching channel:id
- * @ioc: per adapter object
- * @id: target id
- * @channel: channel
- * Context: This function will acquire ioc->scsi_lookup_lock.
- *
- * This will search for a matching channel:id in the scsi_lookup array,
- * returning 1 if found.
- */
-static u8
-_scsih_scsi_lookup_find_by_target(struct MPT3SAS_ADAPTER *ioc, int id,
-	int channel)
-{
-	u8 found;
-	unsigned long	flags;
-	int i;
-
-	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
-	found = 0;
-	for (i = 0 ; i < ioc->scsiio_depth; i++) {
-		if (ioc->scsi_lookup[i].scmd &&
-		    (ioc->scsi_lookup[i].scmd->device->id == id &&
-		    ioc->scsi_lookup[i].scmd->device->channel == channel)) {
-			found = 1;
-			goto out;
-		}
-	}
- out:
-	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
-	return found;
-}
-
-/**
- * _scsih_scsi_lookup_find_by_lun - search for matching channel:id:lun
- * @ioc: per adapter object
- * @id: target id
- * @lun: lun number
- * @channel: channel
- * Context: This function will acquire ioc->scsi_lookup_lock.
- *
- * This will search for a matching channel:id:lun in the scsi_lookup array,
- * returning 1 if found.
- */
-static u8
-_scsih_scsi_lookup_find_by_lun(struct MPT3SAS_ADAPTER *ioc, int id,
-	unsigned int lun, int channel)
-{
-	u8 found;
-	unsigned long	flags;
-	int i;
-
-	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
-	found = 0;
-	for (i = 0 ; i < ioc->scsiio_depth; i++) {
-		if (ioc->scsi_lookup[i].scmd &&
-		    (ioc->scsi_lookup[i].scmd->device->id == id &&
-		    ioc->scsi_lookup[i].scmd->device->channel == channel &&
-		    ioc->scsi_lookup[i].scmd->device->lun == lun)) {
-			found = 1;
-			goto out;
+		scmd = scsi_host_find_tag(ioc->shost, unique_tag);
+		if (scmd) {
+			st = scsi_cmd_priv(scmd);
+			if (st->cb_idx == 0xFF)
+				scmd = NULL;
 		}
 	}
- out:
-	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
-	return found;
+	return scmd;
 }
 
 /**
@@ -2727,32 +2602,30 @@ mpt3sas_scsih_clear_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
 /**
  * mpt3sas_scsih_issue_tm - main routine for sending tm requests
  * @ioc: per adapter struct
- * @device_handle: device handle
- * @channel: the channel assigned by the OS
- * @id: the id assigned by the OS
+ * @handle: device handle
  * @lun: lun number
  * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
  * @smid_task: smid assigned to the task
+ * @msix_task: MSIX table index supplied by the OS
  * @timeout: timeout in seconds
  * Context: user
  *
  * A generic API for sending task management requests to firmware.
  *
  * The callback index is set inside `ioc->tm_cb_idx`.
+ * The caller is responsible to check for outstanding commands.
  *
  * Return SUCCESS or FAILED.
  */
 int
-mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel,
-	uint id, uint lun, u8 type, u16 smid_task, ulong timeout)
+mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle,
+	u64 lun, u8 type, u16 smid_task, u16 msix_task, ulong timeout)
 {
 	Mpi2SCSITaskManagementRequest_t *mpi_request;
 	Mpi2SCSITaskManagementReply_t *mpi_reply;
 	u16 smid = 0;
 	u32 ioc_state;
-	struct scsiio_tracker *scsi_lookup = NULL;
 	int rc;
-	u16 msix_task = 0;
 
 	lockdep_assert_held(&ioc->tm_cmds.mutex);
 
@@ -2791,9 +2664,6 @@ mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel,
 		return FAILED;
 	}
 
-	if (type == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
-		scsi_lookup = &ioc->scsi_lookup[smid_task - 1];
-
 	dtmprintk(ioc, pr_info(MPT3SAS_FMT
 		"sending tm: handle(0x%04x), task_type(0x%02x), smid(%d)\n",
 		ioc->name, handle, type, smid_task));
@@ -2809,11 +2679,6 @@ mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel,
 	int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
 	mpt3sas_scsih_set_tm_flag(ioc, handle);
 	init_completion(&ioc->tm_cmds.done);
-	if ((type == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK) &&
-			(scsi_lookup->msix_io < ioc->reply_queue_count))
-		msix_task = scsi_lookup->msix_io;
-	else
-		msix_task = 0;
 	ioc->put_smid_hi_priority(ioc, smid, msix_task);
 	wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
 	if (!(ioc->tm_cmds.status & MPT3_CMD_COMPLETE)) {
@@ -2847,35 +2712,7 @@ mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel,
 				    sizeof(Mpi2SCSITaskManagementRequest_t)/4);
 		}
 	}
-
-	switch (type) {
-	case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
-		rc = SUCCESS;
-		if (scsi_lookup->scmd == NULL)
-			break;
-		rc = FAILED;
-		break;
-
-	case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
-		if (_scsih_scsi_lookup_find_by_target(ioc, id, channel))
-			rc = FAILED;
-		else
-			rc = SUCCESS;
-		break;
-	case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET:
-	case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET:
-		if (_scsih_scsi_lookup_find_by_lun(ioc, id, lun, channel))
-			rc = FAILED;
-		else
-			rc = SUCCESS;
-		break;
-	case MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK:
-		rc = SUCCESS;
-		break;
-	default:
-		rc = FAILED;
-		break;
-	}
+	rc = SUCCESS;
 
 out:
 	mpt3sas_scsih_clear_tm_flag(ioc, handle);
@@ -2884,13 +2721,13 @@ out:
 }
 
 int mpt3sas_scsih_issue_locked_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle,
-	uint channel, uint id, uint lun, u8 type, u16 smid_task, ulong timeout)
+	u64 lun, u8 type, u16 smid_task, u16 msix_task, ulong timeout)
 {
 	int ret;
 
 	mutex_lock(&ioc->tm_cmds.mutex);
-	ret = mpt3sas_scsih_issue_tm(ioc, handle, channel, id, lun, type,
-			smid_task, timeout);
+	ret = mpt3sas_scsih_issue_tm(ioc, handle, lun, type, smid_task,
+			msix_task, timeout);
 	mutex_unlock(&ioc->tm_cmds.mutex);
 
 	return ret;
@@ -2989,7 +2826,7 @@ scsih_abort(struct scsi_cmnd *scmd)
 {
 	struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
 	struct MPT3SAS_DEVICE *sas_device_priv_data;
-	u16 smid;
+	struct scsiio_tracker *st = scsi_cmd_priv(scmd);
 	u16 handle;
 	int r;
 
@@ -3007,9 +2844,8 @@ scsih_abort(struct scsi_cmnd *scmd)
 		goto out;
 	}
 
-	/* search for the command */
-	smid = _scsih_scsi_lookup_find_by_scmd(ioc, scmd);
-	if (!smid) {
+	/* check for completed command */
+	if (st == NULL || st->cb_idx == 0xFF) {
 		scmd->result = DID_RESET << 16;
 		r = SUCCESS;
 		goto out;
@@ -3027,10 +2863,12 @@ scsih_abort(struct scsi_cmnd *scmd)
 	mpt3sas_halt_firmware(ioc);
 
 	handle = sas_device_priv_data->sas_target->handle;
-	r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->channel,
-	    scmd->device->id, scmd->device->lun,
-	    MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30);
-
+	r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->lun,
+		MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK,
+		st->smid, st->msix_io, 30);
+	/* Command must be cleared after abort */
+	if (r == SUCCESS && st->cb_idx != 0xFF)
+		r = FAILED;
  out:
 	sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(%p)\n",
 	    ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
@@ -3086,10 +2924,11 @@ scsih_dev_reset(struct scsi_cmnd *scmd)
 		goto out;
 	}
 
-	r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->channel,
-	    scmd->device->id, scmd->device->lun,
-	    MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 30);
-
+	r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->lun,
+		MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 0, 30);
+	/* Check for busy commands after reset */
+	if (r == SUCCESS && atomic_read(&scmd->device->device_busy))
+		r = FAILED;
  out:
 	sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n",
 	    ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
@@ -3148,10 +2987,11 @@ scsih_target_reset(struct scsi_cmnd *scmd)
 		goto out;
 	}
 
-	r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->channel,
-	    scmd->device->id, 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
-	    30);
-
+	r = mpt3sas_scsih_issue_locked_tm(ioc, handle, 0,
+		MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 0, 30);
+	/* Check for busy commands after reset */
+	if (r == SUCCESS && atomic_read(&starget->target_busy))
+		r = FAILED;
  out:
 	starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n",
 	    ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
@@ -4600,16 +4440,18 @@ static void
 _scsih_flush_running_cmds(struct MPT3SAS_ADAPTER *ioc)
 {
 	struct scsi_cmnd *scmd;
+	struct scsiio_tracker *st;
 	u16 smid;
-	u16 count = 0;
+	int count = 0;
 
 	for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
-		scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
+		scmd = mpt3sas_scsih_scsi_lookup_get(ioc, smid);
 		if (!scmd)
 			continue;
 		count++;
 		_scsih_set_satl_pending(scmd, false);
-		mpt3sas_base_free_smid(ioc, smid);
+		st = scsi_cmd_priv(scmd);
+		mpt3sas_base_clear_st(ioc, st);
 		scsi_dma_unmap(scmd);
 		if (ioc->pci_error_recovery)
 			scmd->result = DID_NO_CONNECT << 16;
@@ -4758,19 +4600,6 @@ scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
 		return 0;
 	}
 
-	/*
-	 * Bug work around for firmware SATL handling.  The loop
-	 * is based on atomic operations and ensures consistency
-	 * since we're lockless at this point
-	 */
-	do {
-		if (test_bit(0, &sas_device_priv_data->ata_command_pending)) {
-			scmd->result = SAM_STAT_BUSY;
-			scmd->scsi_done(scmd);
-			return 0;
-		}
-	} while (_scsih_set_satl_pending(scmd, true));
-
 	sas_target_priv_data = sas_device_priv_data->sas_target;
 
 	/* invalid device handle */
@@ -4796,6 +4625,19 @@ scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
 	    sas_device_priv_data->block)
 		return SCSI_MLQUEUE_DEVICE_BUSY;
 
+	/*
+	 * Bug work around for firmware SATL handling.  The loop
+	 * is based on atomic operations and ensures consistency
+	 * since we're lockless at this point
+	 */
+	do {
+		if (test_bit(0, &sas_device_priv_data->ata_command_pending)) {
+			scmd->result = SAM_STAT_BUSY;
+			scmd->scsi_done(scmd);
+			return 0;
+		}
+	} while (_scsih_set_satl_pending(scmd, true));
+
 	if (scmd->sc_data_direction == DMA_FROM_DEVICE)
 		mpi_control = MPI2_SCSIIO_CONTROL_READ;
 	else if (scmd->sc_data_direction == DMA_TO_DEVICE)
@@ -4823,6 +4665,7 @@ scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
 	if (!smid) {
 		pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
 		    ioc->name, __func__);
+		_scsih_set_satl_pending(scmd, false);
 		goto out;
 	}
 	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
@@ -4854,6 +4697,7 @@ scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
 		pcie_device = sas_target_priv_data->pcie_dev;
 		if (ioc->build_sg_scmd(ioc, scmd, smid, pcie_device)) {
 			mpt3sas_base_free_smid(ioc, smid);
+			_scsih_set_satl_pending(scmd, false);
 			goto out;
 		}
 	} else
@@ -4862,7 +4706,7 @@ scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
 	raid_device = sas_target_priv_data->raid_device;
 	if (raid_device && raid_device->direct_io_enabled)
 		mpt3sas_setup_direct_io(ioc, scmd,
-			raid_device, mpi_request, smid);
+			raid_device, mpi_request);
 
 	if (likely(mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)) {
 		if (sas_target_priv_data->flags & MPT_TARGET_FASTPATH_IO) {
@@ -5330,6 +5174,7 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
 	Mpi25SCSIIORequest_t *mpi_request;
 	Mpi2SCSIIOReply_t *mpi_reply;
 	struct scsi_cmnd *scmd;
+	struct scsiio_tracker *st;
 	u16 ioc_status;
 	u32 xfer_cnt;
 	u8 scsi_state;
@@ -5337,16 +5182,10 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
 	u32 log_info;
 	struct MPT3SAS_DEVICE *sas_device_priv_data;
 	u32 response_code = 0;
-	unsigned long flags;
 
 	mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
 
-	if (ioc->broadcast_aen_busy || ioc->pci_error_recovery ||
-			ioc->got_task_abort_from_ioctl)
-		scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
-	else
-		scmd = __scsih_scsi_lookup_get_clear(ioc, smid);
-
+	scmd = mpt3sas_scsih_scsi_lookup_get(ioc, smid);
 	if (scmd == NULL)
 		return 1;
 
@@ -5371,13 +5210,11 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
 	 * WARPDRIVE: If direct_io is set then it is directIO,
 	 * the failed direct I/O should be redirected to volume
 	 */
-	if (mpt3sas_scsi_direct_io_get(ioc, smid) &&
+	st = scsi_cmd_priv(scmd);
+	if (st->direct_io &&
 	     ((ioc_status & MPI2_IOCSTATUS_MASK)
 	      != MPI2_IOCSTATUS_SCSI_TASK_TERMINATED)) {
-		spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
-		ioc->scsi_lookup[smid - 1].scmd = scmd;
-		spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
-		mpt3sas_scsi_direct_io_set(ioc, smid, 0);
+		st->direct_io = 0;
 		memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
 		mpi_request->DevHandle =
 		    cpu_to_le16(sas_device_priv_data->sas_target->handle);
@@ -5555,9 +5392,9 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
  out:
 
 	scsi_dma_unmap(scmd);
-
+	mpt3sas_base_free_smid(ioc, smid);
 	scmd->scsi_done(scmd);
-	return 1;
+	return 0;
 }
 
 /**
@@ -7211,7 +7048,7 @@ _scsih_pcie_topology_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
  * Context: user.
  *
  */
-static int
+static void
 _scsih_pcie_topology_change_event(struct MPT3SAS_ADAPTER *ioc,
 	struct fw_event_work *fw_event)
 {
@@ -7221,7 +7058,6 @@ _scsih_pcie_topology_change_event(struct MPT3SAS_ADAPTER *ioc,
 	u8 link_rate, prev_link_rate;
 	unsigned long flags;
 	int rc;
-	int requeue_event;
 	Mpi26EventDataPCIeTopologyChangeList_t *event_data =
 		(Mpi26EventDataPCIeTopologyChangeList_t *) fw_event->event_data;
 	struct _pcie_device *pcie_device;
@@ -7231,12 +7067,12 @@ _scsih_pcie_topology_change_event(struct MPT3SAS_ADAPTER *ioc,
 
 	if (ioc->shost_recovery || ioc->remove_host ||
 		ioc->pci_error_recovery)
-		return 0;
+		return;
 
 	if (fw_event->ignore) {
 		dewtprintk(ioc, pr_info(MPT3SAS_FMT "ignoring switch event\n",
 			ioc->name));
-		return 0;
+		return;
 	}
 
 	/* handle siblings events */
@@ -7244,10 +7080,10 @@ _scsih_pcie_topology_change_event(struct MPT3SAS_ADAPTER *ioc,
 		if (fw_event->ignore) {
 			dewtprintk(ioc, pr_info(MPT3SAS_FMT
 				"ignoring switch event\n", ioc->name));
-			return 0;
+			return;
 		}
 		if (ioc->remove_host || ioc->pci_error_recovery)
-			return 0;
+			return;
 		reason_code = event_data->PortEntry[i].PortStatus;
 		handle =
 			le16_to_cpu(event_data->PortEntry[i].AttachedDevHandle);
@@ -7316,7 +7152,6 @@ _scsih_pcie_topology_change_event(struct MPT3SAS_ADAPTER *ioc,
 			break;
 		}
 	}
-	return requeue_event;
 }
 
 /**
@@ -7502,6 +7337,7 @@ _scsih_sas_broadcast_primitive_event(struct MPT3SAS_ADAPTER *ioc,
 {
 	struct scsi_cmnd *scmd;
 	struct scsi_device *sdev;
+	struct scsiio_tracker *st;
 	u16 smid, handle;
 	u32 lun;
 	struct MPT3SAS_DEVICE *sas_device_priv_data;
@@ -7543,9 +7379,10 @@ _scsih_sas_broadcast_primitive_event(struct MPT3SAS_ADAPTER *ioc,
 	for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
 		if (ioc->shost_recovery)
 			goto out;
-		scmd = _scsih_scsi_lookup_get(ioc, smid);
+		scmd = mpt3sas_scsih_scsi_lookup_get(ioc, smid);
 		if (!scmd)
 			continue;
+		st = scsi_cmd_priv(scmd);
 		sdev = scmd->device;
 		sas_device_priv_data = sdev->hostdata;
 		if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
@@ -7567,8 +7404,9 @@ _scsih_sas_broadcast_primitive_event(struct MPT3SAS_ADAPTER *ioc,
 			goto out;
 
 		spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
-		r = mpt3sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
-		    MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30);
+		r = mpt3sas_scsih_issue_tm(ioc, handle, lun,
+			MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, st->smid,
+			st->msix_io, 30);
 		if (r == FAILED) {
 			sdev_printk(KERN_WARNING, sdev,
 			    "mpt3sas_scsih_issue_tm: FAILED when sending "
@@ -7607,10 +7445,10 @@ _scsih_sas_broadcast_primitive_event(struct MPT3SAS_ADAPTER *ioc,
 		if (ioc->shost_recovery)
 			goto out_no_lock;
 
-		r = mpt3sas_scsih_issue_tm(ioc, handle, sdev->channel, sdev->id,
-		    sdev->lun, MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid,
-		    30);
-		if (r == FAILED) {
+		r = mpt3sas_scsih_issue_tm(ioc, handle, sdev->lun,
+			MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, st->smid,
+			st->msix_io, 30);
+		if (r == FAILED || st->cb_idx != 0xFF) {
 			sdev_printk(KERN_WARNING, sdev,
 			    "mpt3sas_scsih_issue_tm: ABORT_TASK: FAILED : "
 			    "scmd(%p)\n", scmd);
@@ -10416,6 +10254,7 @@ static struct scsi_host_template mpt2sas_driver_template = {
 	.shost_attrs			= mpt3sas_host_attrs,
 	.sdev_attrs			= mpt3sas_dev_attrs,
 	.track_queue_depth		= 1,
+	.cmd_size			= sizeof(struct scsiio_tracker),
 };
 
 /* raid transport support for SAS 2.0 HBA devices */
@@ -10454,6 +10293,7 @@ static struct scsi_host_template mpt3sas_driver_template = {
 	.shost_attrs			= mpt3sas_host_attrs,
 	.sdev_attrs			= mpt3sas_dev_attrs,
 	.track_queue_depth		= 1,
+	.cmd_size			= sizeof(struct scsiio_tracker),
 };
 
 /* raid transport support for SAS 3.0 HBA devices */
diff --git a/drivers/scsi/mpt3sas/mpt3sas_warpdrive.c b/drivers/scsi/mpt3sas/mpt3sas_warpdrive.c
index ced7d9f6274c..6bfcee4757e0 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_warpdrive.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_warpdrive.c
@@ -261,33 +261,6 @@ out_error:
 }
 
 /**
- * mpt3sas_scsi_direct_io_get - returns direct io flag
- * @ioc: per adapter object
- * @smid: system request message index
- *
- * Returns the smid stored scmd pointer.
- */
-inline u8
-mpt3sas_scsi_direct_io_get(struct MPT3SAS_ADAPTER *ioc, u16 smid)
-{
-	return ioc->scsi_lookup[smid - 1].direct_io;
-}
-
-/**
- * mpt3sas_scsi_direct_io_set - sets direct io flag
- * @ioc: per adapter object
- * @smid: system request message index
- * @direct_io: Zero or non-zero value to set in the direct_io flag
- *
- * Returns Nothing.
- */
-inline void
-mpt3sas_scsi_direct_io_set(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 direct_io)
-{
-	ioc->scsi_lookup[smid - 1].direct_io = direct_io;
-}
-
-/**
  * mpt3sas_setup_direct_io - setup MPI request for WARPDRIVE Direct I/O
  * @ioc: per adapter object
  * @scmd: pointer to scsi command object
@@ -299,12 +272,12 @@ mpt3sas_scsi_direct_io_set(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 direct_io)
  */
 void
 mpt3sas_setup_direct_io(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
-	struct _raid_device *raid_device, Mpi25SCSIIORequest_t *mpi_request,
-	u16 smid)
+	struct _raid_device *raid_device, Mpi25SCSIIORequest_t *mpi_request)
 {
 	sector_t v_lba, p_lba, stripe_off, column, io_size;
 	u32 stripe_sz, stripe_exp;
 	u8 num_pds, cmd = scmd->cmnd[0];
+	struct scsiio_tracker *st = scsi_cmd_priv(scmd);
 
 	if (cmd != READ_10 && cmd != WRITE_10 &&
 	    cmd != READ_16 && cmd != WRITE_16)
@@ -340,5 +313,5 @@ mpt3sas_setup_direct_io(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
 	else
 		put_unaligned_be64(p_lba, &mpi_request->CDB.CDB32[2]);
 
-	mpt3sas_scsi_direct_io_set(ioc, smid, 1);
+	st->direct_io = 1;
 }
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index e58be98430b0..201c8de1853d 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -5216,7 +5216,7 @@ static unsigned short pmcraid_get_minor(void)
 {
 	int minor;
 
-	minor = find_first_zero_bit(pmcraid_minor, sizeof(pmcraid_minor));
+	minor = find_first_zero_bit(pmcraid_minor, PMCRAID_MAX_ADAPTERS);
 	__set_bit(minor, pmcraid_minor);
 	return minor;
 }
diff --git a/drivers/scsi/ppa.c b/drivers/scsi/ppa.c
index 7be5823ab036..ee86a0c62dbf 100644
--- a/drivers/scsi/ppa.c
+++ b/drivers/scsi/ppa.c
@@ -724,6 +724,7 @@ static int ppa_engine(ppa_struct *dev, struct scsi_cmnd *cmd)
 			return 0;
 		}
 		cmd->SCp.phase++;
+		/* fall through */
 
 	case 3:		/* Phase 3 - Ready to accept a command */
 		w_ctr(ppb, 0x0c);
@@ -733,6 +734,7 @@ static int ppa_engine(ppa_struct *dev, struct scsi_cmnd *cmd)
 		if (!ppa_send_command(cmd))
 			return 0;
 		cmd->SCp.phase++;
+		/* fall through */
 
 	case 4:		/* Phase 4 - Setup scatter/gather buffers */
 		if (scsi_bufflen(cmd)) {
@@ -746,6 +748,7 @@ static int ppa_engine(ppa_struct *dev, struct scsi_cmnd *cmd)
 		}
 		cmd->SCp.buffers_residual = scsi_sg_count(cmd) - 1;
 		cmd->SCp.phase++;
+		/* fall through */
 
 	case 5:		/* Phase 5 - Data transfer stage */
 		w_ctr(ppb, 0x0c);
@@ -758,6 +761,7 @@ static int ppa_engine(ppa_struct *dev, struct scsi_cmnd *cmd)
 		if (retv == 0)
 			return 1;
 		cmd->SCp.phase++;
+		/* fall through */
 
 	case 6:		/* Phase 6 - Read status/message */
 		cmd->result = DID_OK << 16;
diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c
index 7c0064500cc5..4809debc6110 100644
--- a/drivers/scsi/qedf/qedf_main.c
+++ b/drivers/scsi/qedf/qedf_main.c
@@ -3126,6 +3126,7 @@ static int __qedf_probe(struct pci_dev *pdev, int mode)
 	qedf->cmd_mgr = qedf_cmd_mgr_alloc(qedf);
 	if (!qedf->cmd_mgr) {
 		QEDF_ERR(&(qedf->dbg_ctx), "Failed to allocate cmd mgr.\n");
+		rc = -ENOMEM;
 		goto err5;
 	}
 
@@ -3149,6 +3150,7 @@ static int __qedf_probe(struct pci_dev *pdev, int mode)
 		create_workqueue(host_buf);
 	if (!qedf->ll2_recv_wq) {
 		QEDF_ERR(&(qedf->dbg_ctx), "Failed to LL2 workqueue.\n");
+		rc = -ENOMEM;
 		goto err7;
 	}
 
@@ -3192,6 +3194,7 @@ static int __qedf_probe(struct pci_dev *pdev, int mode)
 	if (!qedf->timer_work_queue) {
 		QEDF_ERR(&(qedf->dbg_ctx), "Failed to start timer "
 			  "workqueue.\n");
+		rc = -ENOMEM;
 		goto err7;
 	}
 
diff --git a/drivers/scsi/qedi/qedi_fw.c b/drivers/scsi/qedi/qedi_fw.c
index bd302d3cb9af..20a9259304f2 100644
--- a/drivers/scsi/qedi/qedi_fw.c
+++ b/drivers/scsi/qedi/qedi_fw.c
@@ -198,7 +198,7 @@ static void qedi_process_tmf_resp(struct qedi_ctx *qedi,
 	cqe_tmp_response = &cqe->cqe_common.iscsi_hdr.tmf_response;
 
 	qedi_cmd = task->dd_data;
-	qedi_cmd->tmf_resp_buf = kzalloc(sizeof(*resp_hdr_ptr), GFP_KERNEL);
+	qedi_cmd->tmf_resp_buf = kzalloc(sizeof(*resp_hdr_ptr), GFP_ATOMIC);
 	if (!qedi_cmd->tmf_resp_buf) {
 		QEDI_ERR(&qedi->dbg_ctx,
 			 "Failed to allocate resp buf, cid=0x%x\n",
diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c
index cccc34adc0e0..58596d17f7d9 100644
--- a/drivers/scsi/qedi/qedi_main.c
+++ b/drivers/scsi/qedi/qedi_main.c
@@ -998,7 +998,9 @@ static bool qedi_process_completions(struct qedi_fastpath *fp)
 
 		ret = qedi_queue_cqe(qedi, cqe, fp->sb_id, p);
 		if (ret)
-			continue;
+			QEDI_WARN(&qedi->dbg_ctx,
+				  "Dropping CQE 0x%x for cid=0x%x.\n",
+				  que->cq_cons_idx, cqe->cqe_common.conn_id);
 
 		que->cq_cons_idx++;
 		if (que->cq_cons_idx == QEDI_CQ_SIZE)
@@ -1268,16 +1270,14 @@ static int qedi_alloc_bdq(struct qedi_ctx *qedi)
 	}
 
 	/* Allocate list of PBL pages */
-	qedi->bdq_pbl_list = dma_alloc_coherent(&qedi->pdev->dev,
-						PAGE_SIZE,
-						&qedi->bdq_pbl_list_dma,
-						GFP_KERNEL);
+	qedi->bdq_pbl_list = dma_zalloc_coherent(&qedi->pdev->dev, PAGE_SIZE,
+						 &qedi->bdq_pbl_list_dma,
+						 GFP_KERNEL);
 	if (!qedi->bdq_pbl_list) {
 		QEDI_ERR(&qedi->dbg_ctx,
 			 "Could not allocate list of PBL pages.\n");
 		return -ENOMEM;
 	}
-	memset(qedi->bdq_pbl_list, 0, PAGE_SIZE);
 
 	/*
 	 * Now populate PBL list with pages that contain pointers to the
@@ -1367,11 +1367,10 @@ static int qedi_alloc_global_queues(struct qedi_ctx *qedi)
 		    (qedi->global_queues[i]->cq_pbl_size +
 		    (QEDI_PAGE_SIZE - 1));
 
-		qedi->global_queues[i]->cq =
-		    dma_alloc_coherent(&qedi->pdev->dev,
-				       qedi->global_queues[i]->cq_mem_size,
-				       &qedi->global_queues[i]->cq_dma,
-				       GFP_KERNEL);
+		qedi->global_queues[i]->cq = dma_zalloc_coherent(&qedi->pdev->dev,
+								 qedi->global_queues[i]->cq_mem_size,
+								 &qedi->global_queues[i]->cq_dma,
+								 GFP_KERNEL);
 
 		if (!qedi->global_queues[i]->cq) {
 			QEDI_WARN(&qedi->dbg_ctx,
@@ -1379,14 +1378,10 @@ static int qedi_alloc_global_queues(struct qedi_ctx *qedi)
 			status = -ENOMEM;
 			goto mem_alloc_failure;
 		}
-		memset(qedi->global_queues[i]->cq, 0,
-		       qedi->global_queues[i]->cq_mem_size);
-
-		qedi->global_queues[i]->cq_pbl =
-		    dma_alloc_coherent(&qedi->pdev->dev,
-				       qedi->global_queues[i]->cq_pbl_size,
-				       &qedi->global_queues[i]->cq_pbl_dma,
-				       GFP_KERNEL);
+		qedi->global_queues[i]->cq_pbl = dma_zalloc_coherent(&qedi->pdev->dev,
+								     qedi->global_queues[i]->cq_pbl_size,
+								     &qedi->global_queues[i]->cq_pbl_dma,
+								     GFP_KERNEL);
 
 		if (!qedi->global_queues[i]->cq_pbl) {
 			QEDI_WARN(&qedi->dbg_ctx,
@@ -1394,8 +1389,6 @@ static int qedi_alloc_global_queues(struct qedi_ctx *qedi)
 			status = -ENOMEM;
 			goto mem_alloc_failure;
 		}
-		memset(qedi->global_queues[i]->cq_pbl, 0,
-		       qedi->global_queues[i]->cq_pbl_size);
 
 		/* Create PBL */
 		num_pages = qedi->global_queues[i]->cq_mem_size /
@@ -1456,25 +1449,22 @@ int qedi_alloc_sq(struct qedi_ctx *qedi, struct qedi_endpoint *ep)
 	ep->sq_pbl_size = (ep->sq_mem_size / QEDI_PAGE_SIZE) * sizeof(void *);
 	ep->sq_pbl_size = ep->sq_pbl_size + QEDI_PAGE_SIZE;
 
-	ep->sq = dma_alloc_coherent(&qedi->pdev->dev, ep->sq_mem_size,
-				    &ep->sq_dma, GFP_KERNEL);
+	ep->sq = dma_zalloc_coherent(&qedi->pdev->dev, ep->sq_mem_size,
+				     &ep->sq_dma, GFP_KERNEL);
 	if (!ep->sq) {
 		QEDI_WARN(&qedi->dbg_ctx,
 			  "Could not allocate send queue.\n");
 		rval = -ENOMEM;
 		goto out;
 	}
-	memset(ep->sq, 0, ep->sq_mem_size);
-
-	ep->sq_pbl = dma_alloc_coherent(&qedi->pdev->dev, ep->sq_pbl_size,
-					&ep->sq_pbl_dma, GFP_KERNEL);
+	ep->sq_pbl = dma_zalloc_coherent(&qedi->pdev->dev, ep->sq_pbl_size,
+					 &ep->sq_pbl_dma, GFP_KERNEL);
 	if (!ep->sq_pbl) {
 		QEDI_WARN(&qedi->dbg_ctx,
 			  "Could not allocate send queue PBL.\n");
 		rval = -ENOMEM;
 		goto out_free_sq;
 	}
-	memset(ep->sq_pbl, 0, ep->sq_pbl_size);
 
 	/* Create PBL */
 	num_pages = ep->sq_mem_size / QEDI_PAGE_SIZE;
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 9ce28c4f9812..89a4999fa631 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1843,14 +1843,13 @@ qla2x00_get_fc_host_stats(struct Scsi_Host *shost)
 	if (qla2x00_reset_active(vha))
 		goto done;
 
-	stats = dma_alloc_coherent(&ha->pdev->dev,
-	    sizeof(*stats), &stats_dma, GFP_KERNEL);
+	stats = dma_zalloc_coherent(&ha->pdev->dev, sizeof(*stats),
+				    &stats_dma, GFP_KERNEL);
 	if (!stats) {
 		ql_log(ql_log_warn, vha, 0x707d,
 		    "Failed to allocate memory for stats.\n");
 		goto done;
 	}
-	memset(stats, 0, sizeof(*stats));
 
 	rval = QLA_FUNCTION_FAILED;
 	if (IS_FWI2_CAPABLE(ha)) {
@@ -2170,6 +2169,8 @@ qla24xx_vport_delete(struct fc_vport *fc_vport)
 	dma_free_coherent(&ha->pdev->dev, vha->gnl.size, vha->gnl.l,
 	    vha->gnl.ldma);
 
+	vfree(vha->scan.l);
+
 	if (vha->qpair && vha->qpair->vp_idx == vha->vp_idx) {
 		if (qla2xxx_delete_qpair(vha, vha->qpair) != QLA_SUCCESS)
 			ql_log(ql_log_warn, vha, 0x7087,
diff --git a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c
index e3ac7078d2aa..e2d5d3ca0f57 100644
--- a/drivers/scsi/qla2xxx/qla_bsg.c
+++ b/drivers/scsi/qla2xxx/qla_bsg.c
@@ -1435,7 +1435,7 @@ qla2x00_optrom_setup(struct bsg_job *bsg_job, scsi_qla_host_t *vha,
 		ha->optrom_state = QLA_SREADING;
 	}
 
-	ha->optrom_buffer = vmalloc(ha->optrom_region_size);
+	ha->optrom_buffer = vzalloc(ha->optrom_region_size);
 	if (!ha->optrom_buffer) {
 		ql_log(ql_log_warn, vha, 0x7059,
 		    "Read: Unable to allocate memory for optrom retrieval "
@@ -1445,7 +1445,6 @@ qla2x00_optrom_setup(struct bsg_job *bsg_job, scsi_qla_host_t *vha,
 		return -ENOMEM;
 	}
 
-	memset(ha->optrom_buffer, 0, ha->optrom_region_size);
 	return 0;
 }
 
@@ -2314,16 +2313,14 @@ qla2x00_get_priv_stats(struct bsg_job *bsg_job)
 	if (!IS_FWI2_CAPABLE(ha))
 		return -EPERM;
 
-	stats = dma_alloc_coherent(&ha->pdev->dev,
-		sizeof(*stats), &stats_dma, GFP_KERNEL);
+	stats = dma_zalloc_coherent(&ha->pdev->dev, sizeof(*stats),
+				    &stats_dma, GFP_KERNEL);
 	if (!stats) {
 		ql_log(ql_log_warn, vha, 0x70e2,
 		    "Failed to allocate memory for stats.\n");
 		return -ENOMEM;
 	}
 
-	memset(stats, 0, sizeof(*stats));
-
 	rval = qla24xx_get_isp_stats(base_vha, stats, stats_dma, options);
 
 	if (rval == QLA_SUCCESS) {
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 01a9b8971e88..be7d6824581a 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -246,8 +246,8 @@
  * There is no correspondence between an N-PORT id and an AL_PA.  Therefore the
  * valid range of an N-PORT id is 0 through 0x7ef.
  */
-#define NPH_LAST_HANDLE		0x7ef
-#define NPH_MGMT_SERVER		0x7fa		/*  FFFFFA */
+#define NPH_LAST_HANDLE		0x7ee
+#define NPH_MGMT_SERVER		0x7ef		/*  FFFFEF */
 #define NPH_SNS			0x7fc		/*  FFFFFC */
 #define NPH_FABRIC_CONTROLLER	0x7fd		/*  FFFFFD */
 #define NPH_F_PORT		0x7fe		/*  FFFFFE */
@@ -288,6 +288,8 @@ struct name_list_extended {
 #define ATIO_ENTRY_CNT_24XX		4096	/* Number of ATIO entries. */
 #define RESPONSE_ENTRY_CNT_FX00		256     /* Number of response entries.*/
 #define FW_DEF_EXCHANGES_CNT 2048
+#define FW_MAX_EXCHANGES_CNT (32 * 1024)
+#define REDUCE_EXCHANGES_CNT  (8 * 1024)
 
 struct req_que;
 struct qla_tgt_sess;
@@ -315,6 +317,29 @@ struct srb_cmd {
 /* To identify if a srb is of T10-CRC type. @sp => srb_t pointer */
 #define IS_PROT_IO(sp)	(sp->flags & SRB_CRC_CTX_DSD_VALID)
 
+/*
+ * 24 bit port ID type definition.
+ */
+typedef union {
+	uint32_t b24 : 24;
+
+	struct {
+#ifdef __BIG_ENDIAN
+		uint8_t domain;
+		uint8_t area;
+		uint8_t al_pa;
+#elif defined(__LITTLE_ENDIAN)
+		uint8_t al_pa;
+		uint8_t area;
+		uint8_t domain;
+#else
+#error "__BIG_ENDIAN or __LITTLE_ENDIAN must be defined!"
+#endif
+		uint8_t rsvd_1;
+	} b;
+} port_id_t;
+#define INVALID_PORT_ID	0xFFFFFF
+
 struct els_logo_payload {
 	uint8_t opcode;
 	uint8_t rsvd[3];
@@ -338,6 +363,7 @@ struct ct_arg {
 	u32		rsp_size;
 	void		*req;
 	void		*rsp;
+	port_id_t	id;
 };
 
 /*
@@ -416,6 +442,7 @@ struct srb_iocb {
 		struct {
 			uint32_t cmd_hndl;
 			__le16 comp_status;
+			__le16 req_que_no;
 			struct completion comp;
 		} abt;
 		struct ct_arg ctarg;
@@ -448,6 +475,10 @@ struct srb_iocb {
 			uint32_t timeout_sec;
 			struct	list_head   entry;
 		} nvme;
+		struct {
+			u16 cmd;
+			u16 vp_index;
+		} ctrlvp;
 	} u;
 
 	struct timer_list timer;
@@ -476,6 +507,8 @@ struct srb_iocb {
 #define SRB_NVME_CMD	19
 #define SRB_NVME_LS	20
 #define SRB_PRLI_CMD	21
+#define SRB_CTRL_VP	22
+#define SRB_PRLO_CMD	23
 
 enum {
 	TYPE_SRB,
@@ -499,8 +532,12 @@ typedef struct srb {
 	const char *name;
 	int iocbs;
 	struct qla_qpair *qpair;
+	struct list_head elem;
 	u32 gen1;	/* scratch */
 	u32 gen2;	/* scratch */
+	int rc;
+	int retry_count;
+	struct completion comp;
 	union {
 		struct srb_iocb iocb_cmd;
 		struct bsg_job *bsg_job;
@@ -2164,28 +2201,6 @@ struct imm_ntfy_from_isp {
 #define REQUEST_ENTRY_SIZE	(sizeof(request_t))
 
 
-/*
- * 24 bit port ID type definition.
- */
-typedef union {
-	uint32_t b24 : 24;
-
-	struct {
-#ifdef __BIG_ENDIAN
-		uint8_t domain;
-		uint8_t area;
-		uint8_t al_pa;
-#elif defined(__LITTLE_ENDIAN)
-		uint8_t al_pa;
-		uint8_t area;
-		uint8_t domain;
-#else
-#error "__BIG_ENDIAN or __LITTLE_ENDIAN must be defined!"
-#endif
-		uint8_t rsvd_1;
-	} b;
-} port_id_t;
-#define INVALID_PORT_ID	0xFFFFFF
 
 /*
  * Switch info gathering structure.
@@ -2257,14 +2272,17 @@ struct ct_sns_desc {
 
 enum discovery_state {
 	DSC_DELETED,
+	DSC_GNN_ID,
 	DSC_GID_PN,
 	DSC_GNL,
 	DSC_LOGIN_PEND,
 	DSC_LOGIN_FAILED,
 	DSC_GPDB,
+	DSC_GFPN_ID,
 	DSC_GPSC,
 	DSC_UPD_FCPORT,
 	DSC_LOGIN_COMPLETE,
+	DSC_ADISC,
 	DSC_DELETE_PEND,
 };
 
@@ -2290,7 +2308,9 @@ enum fcport_mgt_event {
 	FCME_GPDB_DONE,
 	FCME_GPNID_DONE,
 	FCME_GFFID_DONE,
-	FCME_DELETE_DONE,
+	FCME_ADISC_DONE,
+	FCME_GNNID_DONE,
+	FCME_GFPNID_DONE,
 };
 
 enum rscn_addr_format {
@@ -2315,6 +2335,7 @@ typedef struct fc_port {
 
 	unsigned int conf_compl_supported:1;
 	unsigned int deleted:2;
+	unsigned int free_pending:1;
 	unsigned int local:1;
 	unsigned int logout_on_delete:1;
 	unsigned int logo_ack_needed:1;
@@ -2323,6 +2344,7 @@ typedef struct fc_port {
 	unsigned int login_pause:1;
 	unsigned int login_succ:1;
 	unsigned int query:1;
+	unsigned int id_changed:1;
 
 	struct work_struct nvme_del_work;
 	struct completion nvme_del_done;
@@ -2434,6 +2456,7 @@ static const char * const port_state_str[] = {
 #define FCF_FCP2_DEVICE		BIT_2
 #define FCF_ASYNC_SENT		BIT_3
 #define FCF_CONF_COMP_SUPPORTED BIT_4
+#define FCF_ASYNC_ACTIVE	BIT_5
 
 /* No loop ID flag. */
 #define FC_NO_LOOP_ID		0x1000
@@ -2470,6 +2493,11 @@ static const char * const port_state_str[] = {
 #define	GA_NXT_REQ_SIZE	(16 + 4)
 #define	GA_NXT_RSP_SIZE	(16 + 620)
 
+#define	GPN_FT_CMD	0x172
+#define	GPN_FT_REQ_SIZE	(16 + 4)
+#define	GNN_FT_CMD	0x173
+#define	GNN_FT_REQ_SIZE	(16 + 4)
+
 #define	GID_PT_CMD	0x1A1
 #define	GID_PT_REQ_SIZE	(16 + 4)
 
@@ -2725,6 +2753,13 @@ struct ct_sns_req {
 		} port_id;
 
 		struct {
+			uint8_t reserved;
+			uint8_t domain;
+			uint8_t area;
+			uint8_t port_type;
+		} gpn_ft;
+
+		struct {
 			uint8_t port_type;
 			uint8_t domain;
 			uint8_t area;
@@ -2837,6 +2872,27 @@ struct ct_sns_gid_pt_data {
 	uint8_t port_id[3];
 };
 
+/* It's the same for both GPN_FT and GNN_FT */
+struct ct_sns_gpnft_rsp {
+	struct {
+		struct ct_cmd_hdr header;
+		uint16_t response;
+		uint16_t residual;
+		uint8_t fragment_id;
+		uint8_t reason_code;
+		uint8_t explanation_code;
+		uint8_t vendor_unique;
+	};
+	/* Assume the largest number of targets for the union */
+	struct ct_sns_gpn_ft_data {
+		u8 control_byte;
+		u8 port_id[3];
+		u32 reserved;
+		u8 port_name[8];
+	} entries[1];
+};
+
+/* CT command response */
 struct ct_sns_rsp {
 	struct ct_rsp_hdr header;
 
@@ -2912,6 +2968,33 @@ struct ct_sns_pkt {
 	} p;
 };
 
+struct ct_sns_gpnft_pkt {
+	union {
+		struct ct_sns_req req;
+		struct ct_sns_gpnft_rsp rsp;
+	} p;
+};
+
+enum scan_flags_t {
+	SF_SCANNING = BIT_0,
+	SF_QUEUED = BIT_1,
+};
+
+struct fab_scan_rp {
+	port_id_t id;
+	u8 port_name[8];
+	u8 node_name[8];
+};
+
+struct fab_scan {
+	struct fab_scan_rp *l;
+	u32 size;
+	u16 scan_retry;
+#define MAX_SCAN_RETRIES 5
+	enum scan_flags_t scan_flags;
+	struct delayed_work scan_work;
+};
+
 /*
  * SNS command structures -- for 2200 compatibility.
  */
@@ -3117,7 +3200,7 @@ enum qla_work_type {
 	QLA_EVT_AENFX,
 	QLA_EVT_GIDPN,
 	QLA_EVT_GPNID,
-	QLA_EVT_GPNID_DONE,
+	QLA_EVT_UNMAP,
 	QLA_EVT_NEW_SESS,
 	QLA_EVT_GPDB,
 	QLA_EVT_PRLI,
@@ -3125,6 +3208,15 @@ enum qla_work_type {
 	QLA_EVT_UPD_FCPORT,
 	QLA_EVT_GNL,
 	QLA_EVT_NACK,
+	QLA_EVT_RELOGIN,
+	QLA_EVT_ASYNC_PRLO,
+	QLA_EVT_ASYNC_PRLO_DONE,
+	QLA_EVT_GPNFT,
+	QLA_EVT_GPNFT_DONE,
+	QLA_EVT_GNNFT_DONE,
+	QLA_EVT_GNNID,
+	QLA_EVT_GFPNID,
+	QLA_EVT_SP_RETRY,
 };
 
 
@@ -3166,7 +3258,9 @@ struct qla_work_evt {
 		struct {
 			port_id_t id;
 			u8 port_name[8];
+			u8 node_name[8];
 			void *pla;
+			u8 fc4_type;
 		} new_sess;
 		struct { /*Get PDB, Get Speed, update fcport, gnl, gidpn */
 			fc_port_t *fcport;
@@ -3177,6 +3271,9 @@ struct qla_work_evt {
 			u8 iocb[IOCB_SIZE];
 			int type;
 		} nack;
+		struct {
+			u8 fc4_type;
+		} gpnft;
 	 } u;
 };
 
@@ -3433,10 +3530,6 @@ struct qlt_hw_data {
 
 #define LEAK_EXCHG_THRESH_HOLD_PERCENT 75	/* 75 percent */
 
-#define QLA_EARLY_LINKUP(_ha) \
-	((_ha->flags.n2n_ae || _ha->flags.lip_ae) && \
-	 _ha->flags.fw_started && !_ha->flags.fw_init_done)
-
 /*
  * Qlogic host adapter specific data structure.
 */
@@ -3494,8 +3587,10 @@ struct qla_hw_data {
 
 		uint32_t	detected_lr_sfp:1;
 		uint32_t	using_lr_setting:1;
+		uint32_t	rida_fmt2:1;
 	} flags;
 
+	uint16_t max_exchg;
 	uint16_t long_range_distance;	/* 32G & above */
 #define LR_DISTANCE_5K  1
 #define LR_DISTANCE_10K 0
@@ -3713,6 +3808,8 @@ struct qla_hw_data {
 	(IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha))
 #define IS_EXLOGIN_OFFLD_CAPABLE(ha) \
 	(IS_QLA25XX(ha) || IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha))
+#define USE_ASYNC_SCAN(ha) (IS_QLA25XX(ha) || IS_QLA81XX(ha) ||\
+	IS_QLA83XX(ha) || IS_QLA27XX(ha))
 
 	/* HBA serial number */
 	uint8_t		serial0;
@@ -3795,7 +3892,7 @@ struct qla_hw_data {
 	int		exchoffld_size;
 	int 		exchoffld_count;
 
-	void		*swl;
+	void            *swl;
 
 	/* These are used by mailbox operations. */
 	uint16_t mailbox_out[MAILBOX_REGISTER_COUNT];
@@ -4107,6 +4204,7 @@ typedef struct scsi_qla_host {
 #define LOOP_READY	5
 #define LOOP_DEAD	6
 
+	unsigned long   relogin_jif;
 	unsigned long   dpc_flags;
 #define RESET_MARKER_NEEDED	0	/* Send marker to ISP. */
 #define RESET_ACTIVE		1
@@ -4139,6 +4237,7 @@ typedef struct scsi_qla_host {
 #define SET_ZIO_THRESHOLD_NEEDED	28
 #define DETECT_SFP_CHANGE	29
 #define N2N_LOGIN_NEEDED	30
+#define IOCB_WORK_ACTIVE	31
 
 	unsigned long	pci_flags;
 #define PFLG_DISCONNECTED	0	/* PCI device removed */
@@ -4252,6 +4351,8 @@ typedef struct scsi_qla_host {
 	uint8_t n2n_node_name[WWN_SIZE];
 	uint8_t n2n_port_name[WWN_SIZE];
 	uint16_t	n2n_id;
+	struct list_head gpnid_list;
+	struct fab_scan scan;
 } scsi_qla_host_t;
 
 struct qla27xx_image_status {
@@ -4511,6 +4612,16 @@ struct sff_8247_a0 {
 #define USER_CTRL_IRQ(_ha) (ql2xuctrlirq && QLA_TGT_MODE_ENABLED() && \
 	(IS_QLA27XX(_ha) || IS_QLA83XX(_ha)))
 
+#define SAVE_TOPO(_ha) { \
+	if (_ha->current_topology)				\
+		_ha->prev_topology = _ha->current_topology;     \
+}
+
+#define N2N_TOPO(ha) \
+	((ha->prev_topology == ISP_CFG_N && !ha->current_topology) || \
+	 ha->current_topology == ISP_CFG_N || \
+	 !ha->current_topology)
+
 #include "qla_target.h"
 #include "qla_gbl.h"
 #include "qla_dbg.h"
diff --git a/drivers/scsi/qla2xxx/qla_dfs.c b/drivers/scsi/qla2xxx/qla_dfs.c
index d231e7156134..0b190082aa8d 100644
--- a/drivers/scsi/qla2xxx/qla_dfs.c
+++ b/drivers/scsi/qla2xxx/qla_dfs.c
@@ -127,21 +127,32 @@ static int
 qla_dfs_fw_resource_cnt_show(struct seq_file *s, void *unused)
 {
 	struct scsi_qla_host *vha = s->private;
-	struct qla_hw_data *ha = vha->hw;
+	uint16_t mb[MAX_IOCB_MB_REG];
+	int rc;
+
+	rc = qla24xx_res_count_wait(vha, mb, SIZEOF_IOCB_MB_REG);
+	if (rc != QLA_SUCCESS) {
+		seq_printf(s, "Mailbox Command failed %d, mb %#x", rc, mb[0]);
+	} else {
+		seq_puts(s, "FW Resource count\n\n");
+		seq_printf(s, "Original TGT exchg count[%d]\n", mb[1]);
+		seq_printf(s, "current TGT exchg count[%d]\n", mb[2]);
+		seq_printf(s, "original Initiator Exchange count[%d]\n", mb[3]);
+		seq_printf(s, "Current Initiator Exchange count[%d]\n", mb[6]);
+		seq_printf(s, "Original IOCB count[%d]\n", mb[7]);
+		seq_printf(s, "Current IOCB count[%d]\n", mb[10]);
+		seq_printf(s, "MAX VP count[%d]\n", mb[11]);
+		seq_printf(s, "MAX FCF count[%d]\n", mb[12]);
+		seq_printf(s, "Current free pageable XCB buffer cnt[%d]\n",
+		    mb[20]);
+		seq_printf(s, "Original Initiator fast XCB buffer cnt[%d]\n",
+		    mb[21]);
+		seq_printf(s, "Current free Initiator fast XCB buffer cnt[%d]\n",
+		    mb[22]);
+		seq_printf(s, "Original Target fast XCB buffer cnt[%d]\n",
+		    mb[23]);
 
-	seq_puts(s, "FW Resource count\n\n");
-	seq_printf(s, "Original TGT exchg count[%d]\n",
-	    ha->orig_fw_tgt_xcb_count);
-	seq_printf(s, "current TGT exchg count[%d]\n",
-	    ha->cur_fw_tgt_xcb_count);
-	seq_printf(s, "original Initiator Exchange count[%d]\n",
-	    ha->orig_fw_xcb_count);
-	seq_printf(s, "Current Initiator Exchange count[%d]\n",
-	    ha->cur_fw_xcb_count);
-	seq_printf(s, "Original IOCB count[%d]\n", ha->orig_fw_iocb_count);
-	seq_printf(s, "Current IOCB count[%d]\n", ha->cur_fw_iocb_count);
-	seq_printf(s, "MAX VP count[%d]\n", ha->max_npiv_vports);
-	seq_printf(s, "MAX FCF count[%d]\n", ha->fw_max_fcf_count);
+	}
 
 	return 0;
 }
diff --git a/drivers/scsi/qla2xxx/qla_fw.h b/drivers/scsi/qla2xxx/qla_fw.h
index d5cef0727e72..5d8688e5bc7c 100644
--- a/drivers/scsi/qla2xxx/qla_fw.h
+++ b/drivers/scsi/qla2xxx/qla_fw.h
@@ -1392,7 +1392,7 @@ struct vp_rpt_id_entry_24xx {
 
 		    uint8_t port_name[8];
 		    uint8_t node_name[8];
-		    uint32_t remote_nport_id;
+		    uint8_t remote_nport_id[4];
 		    uint32_t reserved_5;
 		} f2;
 	} u;
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index fa115c7433e5..e9295398050c 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -66,6 +66,7 @@ extern void qla84xx_put_chip(struct scsi_qla_host *);
 extern int qla2x00_async_login(struct scsi_qla_host *, fc_port_t *,
     uint16_t *);
 extern int qla2x00_async_logout(struct scsi_qla_host *, fc_port_t *);
+extern int qla2x00_async_prlo(struct scsi_qla_host *, fc_port_t *);
 extern int qla2x00_async_adisc(struct scsi_qla_host *, fc_port_t *,
     uint16_t *);
 extern int qla2x00_async_tm_cmd(fc_port_t *, uint32_t, uint32_t, uint32_t);
@@ -104,11 +105,18 @@ int qla24xx_async_gpdb(struct scsi_qla_host *, fc_port_t *, u8);
 int qla24xx_async_prli(struct scsi_qla_host *, fc_port_t *);
 int qla24xx_async_notify_ack(scsi_qla_host_t *, fc_port_t *,
 	struct imm_ntfy_from_isp *, int);
-int qla24xx_post_newsess_work(struct scsi_qla_host *, port_id_t *, u8 *,
-    void *);
+int qla24xx_post_newsess_work(struct scsi_qla_host *, port_id_t *, u8 *, u8*,
+    void *, u8);
 int qla24xx_fcport_handle_login(struct scsi_qla_host *, fc_port_t *);
 int qla24xx_detect_sfp(scsi_qla_host_t *vha);
 int qla24xx_post_gpdb_work(struct scsi_qla_host *, fc_port_t *, u8);
+void qla2x00_async_prlo_done(struct scsi_qla_host *, fc_port_t *,
+    uint16_t *);
+extern int qla2x00_post_async_prlo_work(struct scsi_qla_host *, fc_port_t *,
+    uint16_t *);
+extern int qla2x00_post_async_prlo_done_work(struct scsi_qla_host *,
+    fc_port_t *, uint16_t *);
+
 /*
  * Global Data in qla_os.c source file.
  */
@@ -148,6 +156,7 @@ extern int ql2xuctrlirq;
 extern int ql2xnvmeenable;
 extern int ql2xautodetectsfp;
 extern int ql2xenablemsix;
+extern int qla2xuseresexchforels;
 
 extern int qla2x00_loop_reset(scsi_qla_host_t *);
 extern void qla2x00_abort_all_cmds(scsi_qla_host_t *, int);
@@ -203,6 +212,7 @@ void qla2x00_handle_login_done_event(struct scsi_qla_host *, fc_port_t *,
 	uint16_t *);
 int qla24xx_post_gnl_work(struct scsi_qla_host *, fc_port_t *);
 int qla24xx_async_abort_cmd(srb_t *);
+int qla24xx_post_relogin_work(struct scsi_qla_host *vha);
 
 /*
  * Global Functions in qla_mid.c source file.
@@ -494,6 +504,7 @@ int qla24xx_get_port_login_templ(scsi_qla_host_t *, dma_addr_t,
 
 extern int qla27xx_get_zio_threshold(scsi_qla_host_t *, uint16_t *);
 extern int qla27xx_set_zio_threshold(scsi_qla_host_t *, uint16_t);
+int qla24xx_res_count_wait(struct scsi_qla_host *, uint16_t *, int);
 
 /*
  * Global Function Prototypes in qla_isr.c source file.
@@ -639,14 +650,26 @@ extern void qla2x00_free_fcport(fc_port_t *);
 
 extern int qla24xx_post_gpnid_work(struct scsi_qla_host *, port_id_t *);
 extern int qla24xx_async_gpnid(scsi_qla_host_t *, port_id_t *);
-void qla24xx_async_gpnid_done(scsi_qla_host_t *, srb_t*);
 void qla24xx_handle_gpnid_event(scsi_qla_host_t *, struct event_arg *);
 
 int qla24xx_post_gpsc_work(struct scsi_qla_host *, fc_port_t *);
 int qla24xx_async_gpsc(scsi_qla_host_t *, fc_port_t *);
+void qla24xx_handle_gpsc_event(scsi_qla_host_t *, struct event_arg *);
 int qla2x00_mgmt_svr_login(scsi_qla_host_t *);
 void qla24xx_handle_gffid_event(scsi_qla_host_t *vha, struct event_arg *ea);
 int qla24xx_async_gffid(scsi_qla_host_t *vha, fc_port_t *fcport);
+int qla24xx_async_gpnft(scsi_qla_host_t *, u8);
+void qla24xx_async_gpnft_done(scsi_qla_host_t *, srb_t *);
+void qla24xx_async_gnnft_done(scsi_qla_host_t *, srb_t *);
+int qla24xx_async_gnnid(scsi_qla_host_t *, fc_port_t *);
+void qla24xx_handle_gnnid_event(scsi_qla_host_t *, struct event_arg *);
+int qla24xx_post_gnnid_work(struct scsi_qla_host *, fc_port_t *);
+int qla24xx_post_gfpnid_work(struct scsi_qla_host *, fc_port_t *);
+int qla24xx_async_gfpnid(scsi_qla_host_t *, fc_port_t *);
+void qla24xx_handle_gfpnid_event(scsi_qla_host_t *, struct event_arg *);
+void qla24xx_sp_unmap(scsi_qla_host_t *, srb_t *);
+void qla_scan_work_fn(struct work_struct *);
+
 /*
  * Global Function Prototypes in qla_attr.c source file.
  */
@@ -864,8 +887,7 @@ void qla24xx_do_nack_work(struct scsi_qla_host *, struct qla_work_evt *);
 void qlt_plogi_ack_link(struct scsi_qla_host *, struct qlt_plogi_ack_t *,
 	struct fc_port *, enum qlt_plogi_link_t);
 void qlt_plogi_ack_unref(struct scsi_qla_host *, struct qlt_plogi_ack_t *);
-extern void qlt_schedule_sess_for_deletion(struct fc_port *, bool);
-extern void qlt_schedule_sess_for_deletion_lock(struct fc_port *);
+extern void qlt_schedule_sess_for_deletion(struct fc_port *);
 extern struct fc_port *qlt_find_sess_invalidate_other(scsi_qla_host_t *,
 	uint64_t wwn, port_id_t port_id, uint16_t loop_id, struct fc_port **);
 void qla24xx_delete_sess_fn(struct work_struct *);
diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c
index bc3db6abc9a0..5bf9a59432f6 100644
--- a/drivers/scsi/qla2xxx/qla_gs.c
+++ b/drivers/scsi/qla2xxx/qla_gs.c
@@ -14,6 +14,10 @@ static int qla2x00_sns_gpn_id(scsi_qla_host_t *, sw_info_t *);
 static int qla2x00_sns_gnn_id(scsi_qla_host_t *, sw_info_t *);
 static int qla2x00_sns_rft_id(scsi_qla_host_t *);
 static int qla2x00_sns_rnn_id(scsi_qla_host_t *);
+static int qla_async_rftid(scsi_qla_host_t *, port_id_t *);
+static int qla_async_rffid(scsi_qla_host_t *, port_id_t *, u8, u8);
+static int qla_async_rnnid(scsi_qla_host_t *, port_id_t *, u8*);
+static int qla_async_rsnn_nn(scsi_qla_host_t *);
 
 /**
  * qla2x00_prep_ms_iocb() - Prepare common MS/CT IOCB fields for SNS CT query.
@@ -175,6 +179,9 @@ qla2x00_chk_ms_status(scsi_qla_host_t *vha, ms_iocb_entry_t *ms_pkt,
 				set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
 			}
 			break;
+		case CS_TIMEOUT:
+			rval = QLA_FUNCTION_TIMEOUT;
+			/* fall through */
 		default:
 			ql_dbg(ql_dbg_disc, vha, 0x2033,
 			    "%s failed, completion status (%x) on port_id: "
@@ -508,6 +515,72 @@ qla2x00_gnn_id(scsi_qla_host_t *vha, sw_info_t *list)
 	return (rval);
 }
 
+static void qla2x00_async_sns_sp_done(void *s, int rc)
+{
+	struct srb *sp = s;
+	struct scsi_qla_host *vha = sp->vha;
+	struct ct_sns_pkt *ct_sns;
+	struct qla_work_evt *e;
+
+	sp->rc = rc;
+	if (rc == QLA_SUCCESS) {
+		ql_dbg(ql_dbg_disc, vha, 0x204f,
+		    "Async done-%s exiting normally.\n",
+		    sp->name);
+	} else if (rc == QLA_FUNCTION_TIMEOUT) {
+		ql_dbg(ql_dbg_disc, vha, 0x204f,
+		    "Async done-%s timeout\n", sp->name);
+	} else {
+		ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.rsp;
+		memset(ct_sns, 0, sizeof(*ct_sns));
+		sp->retry_count++;
+		if (sp->retry_count > 3)
+			goto err;
+
+		ql_dbg(ql_dbg_disc, vha, 0x204f,
+		    "Async done-%s fail rc %x.  Retry count %d\n",
+		    sp->name, rc, sp->retry_count);
+
+		e = qla2x00_alloc_work(vha, QLA_EVT_SP_RETRY);
+		if (!e)
+			goto err2;
+
+		del_timer(&sp->u.iocb_cmd.timer);
+		e->u.iosb.sp = sp;
+		qla2x00_post_work(vha, e);
+		return;
+	}
+
+err:
+	e = qla2x00_alloc_work(vha, QLA_EVT_UNMAP);
+err2:
+	if (!e) {
+		/* please ignore kernel warning. otherwise, we have mem leak. */
+		if (sp->u.iocb_cmd.u.ctarg.req) {
+			dma_free_coherent(&vha->hw->pdev->dev,
+			    sizeof(struct ct_sns_pkt),
+			    sp->u.iocb_cmd.u.ctarg.req,
+			    sp->u.iocb_cmd.u.ctarg.req_dma);
+			sp->u.iocb_cmd.u.ctarg.req = NULL;
+		}
+
+		if (sp->u.iocb_cmd.u.ctarg.rsp) {
+			dma_free_coherent(&vha->hw->pdev->dev,
+			    sizeof(struct ct_sns_pkt),
+			    sp->u.iocb_cmd.u.ctarg.rsp,
+			    sp->u.iocb_cmd.u.ctarg.rsp_dma);
+			sp->u.iocb_cmd.u.ctarg.rsp = NULL;
+		}
+
+		sp->free(sp);
+
+		return;
+	}
+
+	e->u.iosb.sp = sp;
+	qla2x00_post_work(vha, e);
+}
+
 /**
  * qla2x00_rft_id() - SNS Register FC-4 TYPEs (RFT_ID) supported by the HBA.
  * @ha: HA context
@@ -517,57 +590,87 @@ qla2x00_gnn_id(scsi_qla_host_t *vha, sw_info_t *list)
 int
 qla2x00_rft_id(scsi_qla_host_t *vha)
 {
-	int		rval;
 	struct qla_hw_data *ha = vha->hw;
-	ms_iocb_entry_t	*ms_pkt;
-	struct ct_sns_req	*ct_req;
-	struct ct_sns_rsp	*ct_rsp;
-	struct ct_arg arg;
 
 	if (IS_QLA2100(ha) || IS_QLA2200(ha))
 		return qla2x00_sns_rft_id(vha);
 
-	arg.iocb = ha->ms_iocb;
-	arg.req_dma = ha->ct_sns_dma;
-	arg.rsp_dma = ha->ct_sns_dma;
-	arg.req_size = RFT_ID_REQ_SIZE;
-	arg.rsp_size = RFT_ID_RSP_SIZE;
-	arg.nport_handle = NPH_SNS;
+	return qla_async_rftid(vha, &vha->d_id);
+}
 
-	/* Issue RFT_ID */
-	/* Prepare common MS IOCB */
-	ms_pkt = ha->isp_ops->prep_ms_iocb(vha, &arg);
+static int qla_async_rftid(scsi_qla_host_t *vha, port_id_t *d_id)
+{
+	int rval = QLA_MEMORY_ALLOC_FAILED;
+	struct ct_sns_req *ct_req;
+	srb_t *sp;
+	struct ct_sns_pkt *ct_sns;
+
+	if (!vha->flags.online)
+		goto done;
+
+	sp = qla2x00_get_sp(vha, NULL, GFP_KERNEL);
+	if (!sp)
+		goto done;
+
+	sp->type = SRB_CT_PTHRU_CMD;
+	sp->name = "rft_id";
+	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
+
+	sp->u.iocb_cmd.u.ctarg.req = dma_alloc_coherent(&vha->hw->pdev->dev,
+	    sizeof(struct ct_sns_pkt), &sp->u.iocb_cmd.u.ctarg.req_dma,
+	    GFP_KERNEL);
+	if (!sp->u.iocb_cmd.u.ctarg.req) {
+		ql_log(ql_log_warn, vha, 0xd041,
+		    "%s: Failed to allocate ct_sns request.\n",
+		    __func__);
+		goto done_free_sp;
+	}
+
+	sp->u.iocb_cmd.u.ctarg.rsp = dma_alloc_coherent(&vha->hw->pdev->dev,
+	    sizeof(struct ct_sns_pkt), &sp->u.iocb_cmd.u.ctarg.rsp_dma,
+	    GFP_KERNEL);
+	if (!sp->u.iocb_cmd.u.ctarg.rsp) {
+		ql_log(ql_log_warn, vha, 0xd042,
+		    "%s: Failed to allocate ct_sns request.\n",
+		    __func__);
+		goto done_free_sp;
+	}
+	ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.rsp;
+	memset(ct_sns, 0, sizeof(*ct_sns));
+	ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.req;
 
 	/* Prepare CT request */
-	ct_req = qla2x00_prep_ct_req(ha->ct_sns, RFT_ID_CMD,
-	    RFT_ID_RSP_SIZE);
-	ct_rsp = &ha->ct_sns->p.rsp;
+	ct_req = qla2x00_prep_ct_req(ct_sns, RFT_ID_CMD, RFT_ID_RSP_SIZE);
 
 	/* Prepare CT arguments -- port_id, FC-4 types */
 	ct_req->req.rft_id.port_id[0] = vha->d_id.b.domain;
 	ct_req->req.rft_id.port_id[1] = vha->d_id.b.area;
 	ct_req->req.rft_id.port_id[2] = vha->d_id.b.al_pa;
-
 	ct_req->req.rft_id.fc4_types[2] = 0x01;		/* FCP-3 */
 
 	if (vha->flags.nvme_enabled)
 		ct_req->req.rft_id.fc4_types[6] = 1;    /* NVMe type 28h */
-	/* Execute MS IOCB */
-	rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma,
-	    sizeof(ms_iocb_entry_t));
+
+	sp->u.iocb_cmd.u.ctarg.req_size = RFT_ID_REQ_SIZE;
+	sp->u.iocb_cmd.u.ctarg.rsp_size = RFT_ID_RSP_SIZE;
+	sp->u.iocb_cmd.u.ctarg.nport_handle = NPH_SNS;
+	sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
+	sp->done = qla2x00_async_sns_sp_done;
+
+	rval = qla2x00_start_sp(sp);
 	if (rval != QLA_SUCCESS) {
-		/*EMPTY*/
 		ql_dbg(ql_dbg_disc, vha, 0x2043,
 		    "RFT_ID issue IOCB failed (%d).\n", rval);
-	} else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "RFT_ID") !=
-	    QLA_SUCCESS) {
-		rval = QLA_FUNCTION_FAILED;
-	} else {
-		ql_dbg(ql_dbg_disc, vha, 0x2044,
-		    "RFT_ID exiting normally.\n");
+		goto done_free_sp;
 	}
-
-	return (rval);
+	ql_dbg(ql_dbg_disc, vha, 0xffff,
+	    "Async-%s - hdl=%x portid %06x.\n",
+	    sp->name, sp->handle, d_id->b24);
+	return rval;
+done_free_sp:
+	sp->free(sp);
+done:
+	return rval;
 }
 
 /**
@@ -579,12 +682,7 @@ qla2x00_rft_id(scsi_qla_host_t *vha)
 int
 qla2x00_rff_id(scsi_qla_host_t *vha, u8 type)
 {
-	int		rval;
 	struct qla_hw_data *ha = vha->hw;
-	ms_iocb_entry_t	*ms_pkt;
-	struct ct_sns_req	*ct_req;
-	struct ct_sns_rsp	*ct_rsp;
-	struct ct_arg arg;
 
 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
 		ql_dbg(ql_dbg_disc, vha, 0x2046,
@@ -592,47 +690,81 @@ qla2x00_rff_id(scsi_qla_host_t *vha, u8 type)
 		return (QLA_SUCCESS);
 	}
 
-	arg.iocb = ha->ms_iocb;
-	arg.req_dma = ha->ct_sns_dma;
-	arg.rsp_dma = ha->ct_sns_dma;
-	arg.req_size = RFF_ID_REQ_SIZE;
-	arg.rsp_size = RFF_ID_RSP_SIZE;
-	arg.nport_handle = NPH_SNS;
+	return qla_async_rffid(vha, &vha->d_id, qlt_rff_id(vha),
+	    FC4_TYPE_FCP_SCSI);
+}
 
-	/* Issue RFF_ID */
-	/* Prepare common MS IOCB */
-	ms_pkt = ha->isp_ops->prep_ms_iocb(vha, &arg);
+static int qla_async_rffid(scsi_qla_host_t *vha, port_id_t *d_id,
+    u8 fc4feature, u8 fc4type)
+{
+	int rval = QLA_MEMORY_ALLOC_FAILED;
+	struct ct_sns_req *ct_req;
+	srb_t *sp;
+	struct ct_sns_pkt *ct_sns;
 
-	/* Prepare CT request */
-	ct_req = qla2x00_prep_ct_req(ha->ct_sns, RFF_ID_CMD,
-	    RFF_ID_RSP_SIZE);
-	ct_rsp = &ha->ct_sns->p.rsp;
+	sp = qla2x00_get_sp(vha, NULL, GFP_KERNEL);
+	if (!sp)
+		goto done;
 
-	/* Prepare CT arguments -- port_id, FC-4 feature, FC-4 type */
-	ct_req->req.rff_id.port_id[0] = vha->d_id.b.domain;
-	ct_req->req.rff_id.port_id[1] = vha->d_id.b.area;
-	ct_req->req.rff_id.port_id[2] = vha->d_id.b.al_pa;
+	sp->type = SRB_CT_PTHRU_CMD;
+	sp->name = "rff_id";
+	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
 
-	qlt_rff_id(vha, ct_req);
+	sp->u.iocb_cmd.u.ctarg.req = dma_alloc_coherent(&vha->hw->pdev->dev,
+	    sizeof(struct ct_sns_pkt), &sp->u.iocb_cmd.u.ctarg.req_dma,
+	    GFP_KERNEL);
+	if (!sp->u.iocb_cmd.u.ctarg.req) {
+		ql_log(ql_log_warn, vha, 0xd041,
+		    "%s: Failed to allocate ct_sns request.\n",
+		    __func__);
+		goto done_free_sp;
+	}
+
+	sp->u.iocb_cmd.u.ctarg.rsp = dma_alloc_coherent(&vha->hw->pdev->dev,
+	    sizeof(struct ct_sns_pkt), &sp->u.iocb_cmd.u.ctarg.rsp_dma,
+	    GFP_KERNEL);
+	if (!sp->u.iocb_cmd.u.ctarg.rsp) {
+		ql_log(ql_log_warn, vha, 0xd042,
+		    "%s: Failed to allocate ct_sns request.\n",
+		    __func__);
+		goto done_free_sp;
+	}
+	ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.rsp;
+	memset(ct_sns, 0, sizeof(*ct_sns));
+	ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.req;
 
-	ct_req->req.rff_id.fc4_type = type;		/* SCSI - FCP */
+	/* Prepare CT request */
+	ct_req = qla2x00_prep_ct_req(ct_sns, RFF_ID_CMD, RFF_ID_RSP_SIZE);
 
-	/* Execute MS IOCB */
-	rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma,
-	    sizeof(ms_iocb_entry_t));
+	/* Prepare CT arguments -- port_id, FC-4 feature, FC-4 type */
+	ct_req->req.rff_id.port_id[0] = d_id->b.domain;
+	ct_req->req.rff_id.port_id[1] = d_id->b.area;
+	ct_req->req.rff_id.port_id[2] = d_id->b.al_pa;
+	ct_req->req.rff_id.fc4_feature = fc4feature;
+	ct_req->req.rff_id.fc4_type = fc4type;		/* SCSI - FCP */
+
+	sp->u.iocb_cmd.u.ctarg.req_size = RFF_ID_REQ_SIZE;
+	sp->u.iocb_cmd.u.ctarg.rsp_size = RFF_ID_RSP_SIZE;
+	sp->u.iocb_cmd.u.ctarg.nport_handle = NPH_SNS;
+	sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
+	sp->done = qla2x00_async_sns_sp_done;
+
+	rval = qla2x00_start_sp(sp);
 	if (rval != QLA_SUCCESS) {
-		/*EMPTY*/
 		ql_dbg(ql_dbg_disc, vha, 0x2047,
 		    "RFF_ID issue IOCB failed (%d).\n", rval);
-	} else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "RFF_ID") !=
-	    QLA_SUCCESS) {
-		rval = QLA_FUNCTION_FAILED;
-	} else {
-		ql_dbg(ql_dbg_disc, vha, 0x2048,
-		    "RFF_ID exiting normally.\n");
+		goto done_free_sp;
 	}
 
-	return (rval);
+	ql_dbg(ql_dbg_disc, vha, 0xffff,
+	    "Async-%s - hdl=%x portid %06x feature %x type %x.\n",
+	    sp->name, sp->handle, d_id->b24, fc4feature, fc4type);
+	return rval;
+
+done_free_sp:
+	sp->free(sp);
+done:
+	return rval;
 }
 
 /**
@@ -644,54 +776,85 @@ qla2x00_rff_id(scsi_qla_host_t *vha, u8 type)
 int
 qla2x00_rnn_id(scsi_qla_host_t *vha)
 {
-	int		rval;
 	struct qla_hw_data *ha = vha->hw;
-	ms_iocb_entry_t	*ms_pkt;
-	struct ct_sns_req	*ct_req;
-	struct ct_sns_rsp	*ct_rsp;
-	struct ct_arg arg;
 
 	if (IS_QLA2100(ha) || IS_QLA2200(ha))
 		return qla2x00_sns_rnn_id(vha);
 
-	arg.iocb = ha->ms_iocb;
-	arg.req_dma = ha->ct_sns_dma;
-	arg.rsp_dma = ha->ct_sns_dma;
-	arg.req_size = RNN_ID_REQ_SIZE;
-	arg.rsp_size = RNN_ID_RSP_SIZE;
-	arg.nport_handle = NPH_SNS;
+	return  qla_async_rnnid(vha, &vha->d_id, vha->node_name);
+}
 
-	/* Issue RNN_ID */
-	/* Prepare common MS IOCB */
-	ms_pkt = ha->isp_ops->prep_ms_iocb(vha, &arg);
+static int qla_async_rnnid(scsi_qla_host_t *vha, port_id_t *d_id,
+	u8 *node_name)
+{
+	int rval = QLA_MEMORY_ALLOC_FAILED;
+	struct ct_sns_req *ct_req;
+	srb_t *sp;
+	struct ct_sns_pkt *ct_sns;
+
+	sp = qla2x00_get_sp(vha, NULL, GFP_KERNEL);
+	if (!sp)
+		goto done;
+
+	sp->type = SRB_CT_PTHRU_CMD;
+	sp->name = "rnid";
+	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
+
+	sp->u.iocb_cmd.u.ctarg.req = dma_alloc_coherent(&vha->hw->pdev->dev,
+	    sizeof(struct ct_sns_pkt), &sp->u.iocb_cmd.u.ctarg.req_dma,
+	    GFP_KERNEL);
+	if (!sp->u.iocb_cmd.u.ctarg.req) {
+		ql_log(ql_log_warn, vha, 0xd041,
+		    "%s: Failed to allocate ct_sns request.\n",
+		    __func__);
+		goto done_free_sp;
+	}
+
+	sp->u.iocb_cmd.u.ctarg.rsp = dma_alloc_coherent(&vha->hw->pdev->dev,
+	    sizeof(struct ct_sns_pkt), &sp->u.iocb_cmd.u.ctarg.rsp_dma,
+	    GFP_KERNEL);
+	if (!sp->u.iocb_cmd.u.ctarg.rsp) {
+		ql_log(ql_log_warn, vha, 0xd042,
+		    "%s: Failed to allocate ct_sns request.\n",
+		    __func__);
+		goto done_free_sp;
+	}
+	ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.rsp;
+	memset(ct_sns, 0, sizeof(*ct_sns));
+	ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.req;
 
 	/* Prepare CT request */
-	ct_req = qla2x00_prep_ct_req(ha->ct_sns, RNN_ID_CMD, RNN_ID_RSP_SIZE);
-	ct_rsp = &ha->ct_sns->p.rsp;
+	ct_req = qla2x00_prep_ct_req(ct_sns, RNN_ID_CMD, RNN_ID_RSP_SIZE);
 
 	/* Prepare CT arguments -- port_id, node_name */
 	ct_req->req.rnn_id.port_id[0] = vha->d_id.b.domain;
 	ct_req->req.rnn_id.port_id[1] = vha->d_id.b.area;
 	ct_req->req.rnn_id.port_id[2] = vha->d_id.b.al_pa;
-
 	memcpy(ct_req->req.rnn_id.node_name, vha->node_name, WWN_SIZE);
 
-	/* Execute MS IOCB */
-	rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma,
-	    sizeof(ms_iocb_entry_t));
+	sp->u.iocb_cmd.u.ctarg.req_size = RNN_ID_REQ_SIZE;
+	sp->u.iocb_cmd.u.ctarg.rsp_size = RNN_ID_RSP_SIZE;
+	sp->u.iocb_cmd.u.ctarg.nport_handle = NPH_SNS;
+
+	sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
+	sp->done = qla2x00_async_sns_sp_done;
+
+	rval = qla2x00_start_sp(sp);
 	if (rval != QLA_SUCCESS) {
-		/*EMPTY*/
 		ql_dbg(ql_dbg_disc, vha, 0x204d,
 		    "RNN_ID issue IOCB failed (%d).\n", rval);
-	} else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "RNN_ID") !=
-	    QLA_SUCCESS) {
-		rval = QLA_FUNCTION_FAILED;
-	} else {
-		ql_dbg(ql_dbg_disc, vha, 0x204e,
-		    "RNN_ID exiting normally.\n");
+		goto done_free_sp;
 	}
+	ql_dbg(ql_dbg_disc, vha, 0xffff,
+	    "Async-%s - hdl=%x portid %06x\n",
+	    sp->name, sp->handle, d_id->b24);
 
-	return (rval);
+	return rval;
+
+done_free_sp:
+	sp->free(sp);
+done:
+	return rval;
 }
 
 void
@@ -718,12 +881,7 @@ qla2x00_get_sym_node_name(scsi_qla_host_t *vha, uint8_t *snn, size_t size)
 int
 qla2x00_rsnn_nn(scsi_qla_host_t *vha)
 {
-	int		rval;
 	struct qla_hw_data *ha = vha->hw;
-	ms_iocb_entry_t	*ms_pkt;
-	struct ct_sns_req	*ct_req;
-	struct ct_sns_rsp	*ct_rsp;
-	struct ct_arg arg;
 
 	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
 		ql_dbg(ql_dbg_disc, vha, 0x2050,
@@ -731,22 +889,49 @@ qla2x00_rsnn_nn(scsi_qla_host_t *vha)
 		return (QLA_SUCCESS);
 	}
 
-	arg.iocb = ha->ms_iocb;
-	arg.req_dma = ha->ct_sns_dma;
-	arg.rsp_dma = ha->ct_sns_dma;
-	arg.req_size = 0;
-	arg.rsp_size = RSNN_NN_RSP_SIZE;
-	arg.nport_handle = NPH_SNS;
+	return qla_async_rsnn_nn(vha);
+}
 
-	/* Issue RSNN_NN */
-	/* Prepare common MS IOCB */
-	/*   Request size adjusted after CT preparation */
-	ms_pkt = ha->isp_ops->prep_ms_iocb(vha, &arg);
+static int qla_async_rsnn_nn(scsi_qla_host_t *vha)
+{
+	int rval = QLA_MEMORY_ALLOC_FAILED;
+	struct ct_sns_req *ct_req;
+	srb_t *sp;
+	struct ct_sns_pkt *ct_sns;
+
+	sp = qla2x00_get_sp(vha, NULL, GFP_KERNEL);
+	if (!sp)
+		goto done;
+
+	sp->type = SRB_CT_PTHRU_CMD;
+	sp->name = "rsnn_nn";
+	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
+
+	sp->u.iocb_cmd.u.ctarg.req = dma_alloc_coherent(&vha->hw->pdev->dev,
+	    sizeof(struct ct_sns_pkt), &sp->u.iocb_cmd.u.ctarg.req_dma,
+	    GFP_KERNEL);
+	if (!sp->u.iocb_cmd.u.ctarg.req) {
+		ql_log(ql_log_warn, vha, 0xd041,
+		    "%s: Failed to allocate ct_sns request.\n",
+		    __func__);
+		goto done_free_sp;
+	}
+
+	sp->u.iocb_cmd.u.ctarg.rsp = dma_alloc_coherent(&vha->hw->pdev->dev,
+	    sizeof(struct ct_sns_pkt), &sp->u.iocb_cmd.u.ctarg.rsp_dma,
+	    GFP_KERNEL);
+	if (!sp->u.iocb_cmd.u.ctarg.rsp) {
+		ql_log(ql_log_warn, vha, 0xd042,
+		    "%s: Failed to allocate ct_sns request.\n",
+		    __func__);
+		goto done_free_sp;
+	}
+	ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.rsp;
+	memset(ct_sns, 0, sizeof(*ct_sns));
+	ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.req;
 
 	/* Prepare CT request */
-	ct_req = qla2x00_prep_ct_req(ha->ct_sns, RSNN_NN_CMD,
-	    RSNN_NN_RSP_SIZE);
-	ct_rsp = &ha->ct_sns->p.rsp;
+	ct_req = qla2x00_prep_ct_req(ct_sns, RSNN_NN_CMD, RSNN_NN_RSP_SIZE);
 
 	/* Prepare CT arguments -- node_name, symbolic node_name, size */
 	memcpy(ct_req->req.rsnn_nn.node_name, vha->node_name, WWN_SIZE);
@@ -754,32 +939,33 @@ qla2x00_rsnn_nn(scsi_qla_host_t *vha)
 	/* Prepare the Symbolic Node Name */
 	qla2x00_get_sym_node_name(vha, ct_req->req.rsnn_nn.sym_node_name,
 	    sizeof(ct_req->req.rsnn_nn.sym_node_name));
-
-	/* Calculate SNN length */
 	ct_req->req.rsnn_nn.name_len =
 	    (uint8_t)strlen(ct_req->req.rsnn_nn.sym_node_name);
 
-	/* Update MS IOCB request */
-	ms_pkt->req_bytecount =
-	    cpu_to_le32(24 + 1 + ct_req->req.rsnn_nn.name_len);
-	ms_pkt->dseg_req_length = ms_pkt->req_bytecount;
 
-	/* Execute MS IOCB */
-	rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma,
-	    sizeof(ms_iocb_entry_t));
+	sp->u.iocb_cmd.u.ctarg.req_size = 24 + 1 + ct_req->req.rsnn_nn.name_len;
+	sp->u.iocb_cmd.u.ctarg.rsp_size = RSNN_NN_RSP_SIZE;
+	sp->u.iocb_cmd.u.ctarg.nport_handle = NPH_SNS;
+
+	sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
+	sp->done = qla2x00_async_sns_sp_done;
+
+	rval = qla2x00_start_sp(sp);
 	if (rval != QLA_SUCCESS) {
-		/*EMPTY*/
-		ql_dbg(ql_dbg_disc, vha, 0x2051,
-		    "RSNN_NN issue IOCB failed (%d).\n", rval);
-	} else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp, "RSNN_NN") !=
-	    QLA_SUCCESS) {
-		rval = QLA_FUNCTION_FAILED;
-	} else {
-		ql_dbg(ql_dbg_disc, vha, 0x2052,
-		    "RSNN_NN exiting normally.\n");
+		ql_dbg(ql_dbg_disc, vha, 0x2043,
+		    "RFT_ID issue IOCB failed (%d).\n", rval);
+		goto done_free_sp;
 	}
+	ql_dbg(ql_dbg_disc, vha, 0xffff,
+	    "Async-%s - hdl=%x.\n",
+	    sp->name, sp->handle);
 
-	return (rval);
+	return rval;
+
+done_free_sp:
+	sp->free(sp);
+done:
+	return rval;
 }
 
 /**
@@ -2790,15 +2976,20 @@ void qla24xx_handle_gidpn_event(scsi_qla_host_t *vha, struct event_arg *ea)
 	fc_port_t *fcport = ea->fcport;
 
 	ql_dbg(ql_dbg_disc, vha, 0x201d,
-	    "%s %8phC login state %d\n",
-	    __func__, fcport->port_name, fcport->fw_login_state);
+	    "%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d lid %d\n",
+	    __func__, fcport->port_name, fcport->disc_state,
+	    fcport->fw_login_state, ea->rc, fcport->login_gen, ea->sp->gen2,
+	    fcport->rscn_gen, ea->sp->gen1, fcport->loop_id);
+
+	if (fcport->disc_state == DSC_DELETE_PEND)
+		return;
 
 	if (ea->sp->gen2 != fcport->login_gen) {
 		/* PLOGI/PRLI/LOGO came in while cmd was out.*/
 		ql_dbg(ql_dbg_disc, vha, 0x201e,
-		    "%s %8phC generation changed rscn %d|%d login %d|%d \n",
+		    "%s %8phC generation changed rscn %d|%d n",
 		    __func__, fcport->port_name, fcport->last_rscn_gen,
-		    fcport->rscn_gen, fcport->last_login_gen, fcport->login_gen);
+		    fcport->rscn_gen);
 		return;
 	}
 
@@ -2811,7 +3002,21 @@ void qla24xx_handle_gidpn_event(scsi_qla_host_t *vha, struct event_arg *ea)
 				/* cable plugged into the same place */
 				switch (vha->host->active_mode) {
 				case MODE_TARGET:
-					/* NOOP. let the other guy login to us.*/
+					if (fcport->fw_login_state ==
+					    DSC_LS_PRLI_COMP) {
+						u16 data[2];
+						/*
+						 * Late RSCN was delivered.
+						 * Remote port already login'ed.
+						 */
+						ql_dbg(ql_dbg_disc, vha, 0x201f,
+						    "%s %d %8phC post adisc\n",
+						    __func__, __LINE__,
+						    fcport->port_name);
+						data[0] = data[1] = 0;
+						qla2x00_post_async_adisc_work(
+						    vha, fcport, data);
+					}
 					break;
 				case MODE_INITIATOR:
 				case MODE_DUAL:
@@ -2820,24 +3025,29 @@ void qla24xx_handle_gidpn_event(scsi_qla_host_t *vha, struct event_arg *ea)
 					    "%s %d %8phC post %s\n", __func__,
 					    __LINE__, fcport->port_name,
 					    (atomic_read(&fcport->state) ==
-					    FCS_ONLINE) ? "gpdb" : "gnl");
+					    FCS_ONLINE) ? "adisc" : "gnl");
 
 					if (atomic_read(&fcport->state) ==
-					    FCS_ONLINE)
-						qla24xx_post_gpdb_work(vha,
-						    fcport, PDO_FORCE_ADISC);
-					else
+					    FCS_ONLINE) {
+						u16 data[2];
+
+						data[0] = data[1] = 0;
+						qla2x00_post_async_adisc_work(
+						    vha, fcport, data);
+					} else {
 						qla24xx_post_gnl_work(vha,
 						    fcport);
+					}
 					break;
 				}
 			} else { /* fcport->d_id.b24 != ea->id.b24 */
 				fcport->d_id.b24 = ea->id.b24;
-				if (fcport->deleted == QLA_SESS_DELETED) {
+				fcport->id_changed = 1;
+				if (fcport->deleted != QLA_SESS_DELETED) {
 					ql_dbg(ql_dbg_disc, vha, 0x2021,
 					    "%s %d %8phC post del sess\n",
 					    __func__, __LINE__, fcport->port_name);
-					qlt_schedule_sess_for_deletion_lock(fcport);
+					qlt_schedule_sess_for_deletion(fcport);
 				}
 			}
 		} else { /* ea->sp->gen1 != fcport->rscn_gen */
@@ -2854,7 +3064,7 @@ void qla24xx_handle_gidpn_event(scsi_qla_host_t *vha, struct event_arg *ea)
 				ql_dbg(ql_dbg_disc, vha, 0x2042,
 				    "%s %d %8phC post del sess\n", __func__,
 				    __LINE__, fcport->port_name);
-				qlt_schedule_sess_for_deletion_lock(fcport);
+				qlt_schedule_sess_for_deletion(fcport);
 			} else {
 				ql_dbg(ql_dbg_disc, vha, 0x2045,
 				    "%s %d %8phC login\n", __func__, __LINE__,
@@ -2878,7 +3088,7 @@ static void qla2x00_async_gidpn_sp_done(void *s, int res)
 	u8 *id = fcport->ct_desc.ct_sns->p.rsp.rsp.gid_pn.port_id;
 	struct event_arg ea;
 
-	fcport->flags &= ~FCF_ASYNC_SENT;
+	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
 
 	memset(&ea, 0, sizeof(ea));
 	ea.fcport = fcport;
@@ -2889,9 +3099,22 @@ static void qla2x00_async_gidpn_sp_done(void *s, int res)
 	ea.rc = res;
 	ea.event = FCME_GIDPN_DONE;
 
-	ql_dbg(ql_dbg_disc, vha, 0x204f,
-	    "Async done-%s res %x, WWPN %8phC ID %3phC \n",
-	    sp->name, res, fcport->port_name, id);
+	if (res == QLA_FUNCTION_TIMEOUT) {
+		ql_dbg(ql_dbg_disc, sp->vha, 0xffff,
+		    "Async done-%s WWPN %8phC timed out.\n",
+		    sp->name, fcport->port_name);
+		qla24xx_post_gidpn_work(sp->vha, fcport);
+		sp->free(sp);
+		return;
+	} else if (res) {
+		ql_dbg(ql_dbg_disc, sp->vha, 0xffff,
+		    "Async done-%s fail res %x, WWPN %8phC\n",
+		    sp->name, res, fcport->port_name);
+	} else {
+		ql_dbg(ql_dbg_disc, vha, 0x204f,
+		    "Async done-%s good WWPN %8phC ID %3phC\n",
+		    sp->name, fcport->port_name, id);
+	}
 
 	qla2x00_fcport_event_handler(vha, &ea);
 
@@ -2904,16 +3127,16 @@ int qla24xx_async_gidpn(scsi_qla_host_t *vha, fc_port_t *fcport)
 	struct ct_sns_req       *ct_req;
 	srb_t *sp;
 
-	if (!vha->flags.online)
-		goto done;
+	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
+		return rval;
 
-	fcport->flags |= FCF_ASYNC_SENT;
 	fcport->disc_state = DSC_GID_PN;
 	fcport->scan_state = QLA_FCPORT_SCAN;
 	sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
 	if (!sp)
 		goto done;
 
+	fcport->flags |= FCF_ASYNC_SENT;
 	sp->type = SRB_CT_PTHRU_CMD;
 	sp->name = "gidpn";
 	sp->gen1 = fcport->rscn_gen;
@@ -2954,8 +3177,8 @@ int qla24xx_async_gidpn(scsi_qla_host_t *vha, fc_port_t *fcport)
 
 done_free_sp:
 	sp->free(sp);
-done:
 	fcport->flags &= ~FCF_ASYNC_SENT;
+done:
 	return rval;
 }
 
@@ -2974,6 +3197,7 @@ int qla24xx_post_gidpn_work(struct scsi_qla_host *vha, fc_port_t *fcport)
 		return QLA_FUNCTION_FAILED;
 
 	e->u.fcport.fcport = fcport;
+	fcport->flags |= FCF_ASYNC_ACTIVE;
 	return qla2x00_post_work(vha, e);
 }
 
@@ -2986,9 +3210,39 @@ int qla24xx_post_gpsc_work(struct scsi_qla_host *vha, fc_port_t *fcport)
 		return QLA_FUNCTION_FAILED;
 
 	e->u.fcport.fcport = fcport;
+	fcport->flags |= FCF_ASYNC_ACTIVE;
 	return qla2x00_post_work(vha, e);
 }
 
+void qla24xx_handle_gpsc_event(scsi_qla_host_t *vha, struct event_arg *ea)
+{
+	struct fc_port *fcport = ea->fcport;
+
+	ql_dbg(ql_dbg_disc, vha, 0x20d8,
+	    "%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d lid %d\n",
+	    __func__, fcport->port_name, fcport->disc_state,
+	    fcport->fw_login_state, ea->rc, ea->sp->gen2, fcport->login_gen,
+	    ea->sp->gen2, fcport->rscn_gen|ea->sp->gen1, fcport->loop_id);
+
+	if (fcport->disc_state == DSC_DELETE_PEND)
+		return;
+
+	if (ea->sp->gen2 != fcport->login_gen) {
+		/* target side must have changed it. */
+		ql_dbg(ql_dbg_disc, vha, 0x20d3,
+		    "%s %8phC generation changed\n",
+		    __func__, fcport->port_name);
+		return;
+	} else if (ea->sp->gen1 != fcport->rscn_gen) {
+		ql_dbg(ql_dbg_disc, vha, 0x20d4, "%s %d %8phC post gidpn\n",
+		    __func__, __LINE__, fcport->port_name);
+		qla24xx_post_gidpn_work(vha, fcport);
+		return;
+	}
+
+	qla24xx_post_upd_fcport_work(vha, ea->fcport);
+}
+
 static void qla24xx_async_gpsc_sp_done(void *s, int res)
 {
 	struct srb *sp = s;
@@ -3004,7 +3258,7 @@ static void qla24xx_async_gpsc_sp_done(void *s, int res)
 	    "Async done-%s res %x, WWPN %8phC \n",
 	    sp->name, res, fcport->port_name);
 
-	fcport->flags &= ~FCF_ASYNC_SENT;
+	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
 
 	if (res == (DID_ERROR << 16)) {
 		/* entry status error */
@@ -3055,6 +3309,7 @@ done:
 	ea.event = FCME_GPSC_DONE;
 	ea.rc = res;
 	ea.fcport = fcport;
+	ea.sp = sp;
 	qla2x00_fcport_event_handler(vha, &ea);
 
 	sp->free(sp);
@@ -3066,14 +3321,14 @@ int qla24xx_async_gpsc(scsi_qla_host_t *vha, fc_port_t *fcport)
 	struct ct_sns_req       *ct_req;
 	srb_t *sp;
 
-	if (!vha->flags.online)
-		goto done;
+	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
+		return rval;
 
-	fcport->flags |= FCF_ASYNC_SENT;
 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
 	if (!sp)
 		goto done;
 
+	fcport->flags |= FCF_ASYNC_SENT;
 	sp->type = SRB_CT_PTHRU_CMD;
 	sp->name = "gpsc";
 	sp->gen1 = fcport->rscn_gen;
@@ -3113,8 +3368,8 @@ int qla24xx_async_gpsc(scsi_qla_host_t *vha, fc_port_t *fcport)
 
 done_free_sp:
 	sp->free(sp);
-done:
 	fcport->flags &= ~FCF_ASYNC_SENT;
+done:
 	return rval;
 }
 
@@ -3133,7 +3388,7 @@ int qla24xx_post_gpnid_work(struct scsi_qla_host *vha, port_id_t *id)
 	return qla2x00_post_work(vha, e);
 }
 
-void qla24xx_async_gpnid_done(scsi_qla_host_t *vha, srb_t *sp)
+void qla24xx_sp_unmap(scsi_qla_host_t *vha, srb_t *sp)
 {
 	if (sp->u.iocb_cmd.u.ctarg.req) {
 		dma_free_coherent(&vha->hw->pdev->dev,
@@ -3155,43 +3410,137 @@ void qla24xx_async_gpnid_done(scsi_qla_host_t *vha, srb_t *sp)
 
 void qla24xx_handle_gpnid_event(scsi_qla_host_t *vha, struct event_arg *ea)
 {
-	fc_port_t *fcport;
-	unsigned long flags;
+	fc_port_t *fcport, *conflict, *t;
+	u16 data[2];
 
-	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
-	fcport = qla2x00_find_fcport_by_wwpn(vha, ea->port_name, 1);
-	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
+	ql_dbg(ql_dbg_disc, vha, 0xffff,
+	    "%s %d port_id: %06x\n",
+	    __func__, __LINE__, ea->id.b24);
 
-	if (fcport) {
-		/* cable moved. just plugged in */
-		fcport->rscn_gen++;
-		fcport->d_id = ea->id;
-		fcport->scan_state = QLA_FCPORT_FOUND;
-		fcport->flags |= FCF_FABRIC_DEVICE;
-
-		switch (fcport->disc_state) {
-		case DSC_DELETED:
-			ql_dbg(ql_dbg_disc, vha, 0x210d,
-			    "%s %d %8phC login\n", __func__, __LINE__,
-			    fcport->port_name);
-			qla24xx_fcport_handle_login(vha, fcport);
-			break;
-		case DSC_DELETE_PEND:
-			break;
-		default:
-			ql_dbg(ql_dbg_disc, vha, 0x2064,
-			    "%s %d %8phC post del sess\n",
-			    __func__, __LINE__, fcport->port_name);
-			qlt_schedule_sess_for_deletion_lock(fcport);
-			break;
+	if (ea->rc) {
+		/* cable is disconnected */
+		list_for_each_entry_safe(fcport, t, &vha->vp_fcports, list) {
+			if (fcport->d_id.b24 == ea->id.b24) {
+				ql_dbg(ql_dbg_disc, vha, 0xffff,
+				    "%s %d %8phC DS %d\n",
+				    __func__, __LINE__,
+				    fcport->port_name,
+				    fcport->disc_state);
+				fcport->scan_state = QLA_FCPORT_SCAN;
+				switch (fcport->disc_state) {
+				case DSC_DELETED:
+				case DSC_DELETE_PEND:
+					break;
+				default:
+					ql_dbg(ql_dbg_disc, vha, 0xffff,
+					    "%s %d %8phC post del sess\n",
+					    __func__, __LINE__,
+					    fcport->port_name);
+					qlt_schedule_sess_for_deletion(fcport);
+					break;
+				}
+			}
 		}
 	} else {
-		/* create new fcport */
-		ql_dbg(ql_dbg_disc, vha, 0x2065,
-		    "%s %d %8phC post new sess\n",
-		    __func__, __LINE__, ea->port_name);
+		/* cable is connected */
+		fcport = qla2x00_find_fcport_by_wwpn(vha, ea->port_name, 1);
+		if (fcport) {
+			list_for_each_entry_safe(conflict, t, &vha->vp_fcports,
+			    list) {
+				if ((conflict->d_id.b24 == ea->id.b24) &&
+				    (fcport != conflict)) {
+					/* 2 fcports with conflict Nport ID or
+					 * an existing fcport is having nport ID
+					 * conflict with new fcport.
+					 */
+
+					ql_dbg(ql_dbg_disc, vha, 0xffff,
+					    "%s %d %8phC DS %d\n",
+					    __func__, __LINE__,
+					    conflict->port_name,
+					    conflict->disc_state);
+					conflict->scan_state = QLA_FCPORT_SCAN;
+					switch (conflict->disc_state) {
+					case DSC_DELETED:
+					case DSC_DELETE_PEND:
+						break;
+					default:
+						ql_dbg(ql_dbg_disc, vha, 0xffff,
+						    "%s %d %8phC post del sess\n",
+						    __func__, __LINE__,
+						    conflict->port_name);
+						qlt_schedule_sess_for_deletion
+							(conflict);
+						break;
+					}
+				}
+			}
+
+			fcport->rscn_gen++;
+			fcport->scan_state = QLA_FCPORT_FOUND;
+			fcport->flags |= FCF_FABRIC_DEVICE;
+			switch (fcport->disc_state) {
+			case DSC_LOGIN_COMPLETE:
+				/* recheck session is still intact. */
+				ql_dbg(ql_dbg_disc, vha, 0x210d,
+				    "%s %d %8phC revalidate session with ADISC\n",
+				    __func__, __LINE__, fcport->port_name);
+				data[0] = data[1] = 0;
+				qla2x00_post_async_adisc_work(vha, fcport,
+				    data);
+				break;
+			case DSC_DELETED:
+				ql_dbg(ql_dbg_disc, vha, 0x210d,
+				    "%s %d %8phC login\n", __func__, __LINE__,
+				    fcport->port_name);
+				fcport->d_id = ea->id;
+				qla24xx_fcport_handle_login(vha, fcport);
+				break;
+			case DSC_DELETE_PEND:
+				fcport->d_id = ea->id;
+				break;
+			default:
+				fcport->d_id = ea->id;
+				break;
+			}
+		} else {
+			list_for_each_entry_safe(conflict, t, &vha->vp_fcports,
+			    list) {
+				if (conflict->d_id.b24 == ea->id.b24) {
+					/* 2 fcports with conflict Nport ID or
+					 * an existing fcport is having nport ID
+					 * conflict with new fcport.
+					 */
+					ql_dbg(ql_dbg_disc, vha, 0xffff,
+					    "%s %d %8phC DS %d\n",
+					    __func__, __LINE__,
+					    conflict->port_name,
+					    conflict->disc_state);
+
+					conflict->scan_state = QLA_FCPORT_SCAN;
+					switch (conflict->disc_state) {
+					case DSC_DELETED:
+					case DSC_DELETE_PEND:
+						break;
+					default:
+						ql_dbg(ql_dbg_disc, vha, 0xffff,
+						    "%s %d %8phC post del sess\n",
+						    __func__, __LINE__,
+						    conflict->port_name);
+						qlt_schedule_sess_for_deletion
+							(conflict);
+						break;
+					}
+				}
+			}
 
-		qla24xx_post_newsess_work(vha, &ea->id, ea->port_name, NULL);
+			/* create new fcport */
+			ql_dbg(ql_dbg_disc, vha, 0x2065,
+			    "%s %d %8phC post new sess\n",
+			    __func__, __LINE__, ea->port_name);
+			qla24xx_post_newsess_work(vha, &ea->id,
+			    ea->port_name, NULL, NULL, FC4_TYPE_UNKNOWN);
+		}
 	}
 }
 
@@ -3205,11 +3554,18 @@ static void qla2x00_async_gpnid_sp_done(void *s, int res)
 	    (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp;
 	struct event_arg ea;
 	struct qla_work_evt *e;
+	unsigned long flags;
 
-	ql_dbg(ql_dbg_disc, vha, 0x2066,
-	    "Async done-%s res %x ID %3phC. %8phC\n",
-	    sp->name, res, ct_req->req.port_id.port_id,
-	    ct_rsp->rsp.gpn_id.port_name);
+	if (res)
+		ql_dbg(ql_dbg_disc, vha, 0x2066,
+		    "Async done-%s fail res %x rscn gen %d ID %3phC. %8phC\n",
+		    sp->name, res, sp->gen1, ct_req->req.port_id.port_id,
+		    ct_rsp->rsp.gpn_id.port_name);
+	else
+		ql_dbg(ql_dbg_disc, vha, 0x2066,
+		    "Async done-%s good rscn gen %d ID %3phC. %8phC\n",
+		    sp->name, sp->gen1, ct_req->req.port_id.port_id,
+		    ct_rsp->rsp.gpn_id.port_name);
 
 	memset(&ea, 0, sizeof(ea));
 	memcpy(ea.port_name, ct_rsp->rsp.gpn_id.port_name, WWN_SIZE);
@@ -3220,9 +3576,26 @@ static void qla2x00_async_gpnid_sp_done(void *s, int res)
 	ea.rc = res;
 	ea.event = FCME_GPNID_DONE;
 
+	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
+	list_del(&sp->elem);
+	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
+
+	if (res) {
+		if (res == QLA_FUNCTION_TIMEOUT) {
+			qla24xx_post_gpnid_work(sp->vha, &ea.id);
+			sp->free(sp);
+			return;
+		}
+	} else if (sp->gen1) {
+		/* There was another RSCN for this Nport ID */
+		qla24xx_post_gpnid_work(sp->vha, &ea.id);
+		sp->free(sp);
+		return;
+	}
+
 	qla2x00_fcport_event_handler(vha, &ea);
 
-	e = qla2x00_alloc_work(vha, QLA_EVT_GPNID_DONE);
+	e = qla2x00_alloc_work(vha, QLA_EVT_UNMAP);
 	if (!e) {
 		/* please ignore kernel warning. otherwise, we have mem leak. */
 		if (sp->u.iocb_cmd.u.ctarg.req) {
@@ -3253,8 +3626,9 @@ int qla24xx_async_gpnid(scsi_qla_host_t *vha, port_id_t *id)
 {
 	int rval = QLA_FUNCTION_FAILED;
 	struct ct_sns_req       *ct_req;
-	srb_t *sp;
+	srb_t *sp, *tsp;
 	struct ct_sns_pkt *ct_sns;
+	unsigned long flags;
 
 	if (!vha->flags.online)
 		goto done;
@@ -3265,8 +3639,22 @@ int qla24xx_async_gpnid(scsi_qla_host_t *vha, port_id_t *id)
 
 	sp->type = SRB_CT_PTHRU_CMD;
 	sp->name = "gpnid";
+	sp->u.iocb_cmd.u.ctarg.id = *id;
+	sp->gen1 = 0;
 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
 
+	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
+	list_for_each_entry(tsp, &vha->gpnid_list, elem) {
+		if (tsp->u.iocb_cmd.u.ctarg.id.b24 == id->b24) {
+			tsp->gen1++;
+			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
+			sp->free(sp);
+			goto done;
+		}
+	}
+	list_add_tail(&sp->elem, &vha->gpnid_list);
+	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
+
 	sp->u.iocb_cmd.u.ctarg.req = dma_alloc_coherent(&vha->hw->pdev->dev,
 		sizeof(struct ct_sns_pkt), &sp->u.iocb_cmd.u.ctarg.req_dma,
 		GFP_KERNEL);
@@ -3393,7 +3781,7 @@ int qla24xx_async_gffid(scsi_qla_host_t *vha, fc_port_t *fcport)
 	struct ct_sns_req       *ct_req;
 	srb_t *sp;
 
-	if (!vha->flags.online)
+	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
 		return rval;
 
 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
@@ -3441,3 +3829,720 @@ done_free_sp:
 	fcport->flags &= ~FCF_ASYNC_SENT;
 	return rval;
 }
+
+/* GPN_FT + GNN_FT*/
+static int qla2x00_is_a_vp(scsi_qla_host_t *vha, u64 wwn)
+{
+	struct qla_hw_data *ha = vha->hw;
+	scsi_qla_host_t *vp;
+	unsigned long flags;
+	u64 twwn;
+	int rc = 0;
+
+	if (!ha->num_vhosts)
+		return 0;
+
+	spin_lock_irqsave(&ha->vport_slock, flags);
+	list_for_each_entry(vp, &ha->vp_list, list) {
+		twwn = wwn_to_u64(vp->port_name);
+		if (wwn == twwn) {
+			rc = 1;
+			break;
+		}
+	}
+	spin_unlock_irqrestore(&ha->vport_slock, flags);
+
+	return rc;
+}
+
+void qla24xx_async_gnnft_done(scsi_qla_host_t *vha, srb_t *sp)
+{
+	fc_port_t *fcport;
+	u32 i, rc;
+	bool found;
+	u8 fc4type = sp->gen2;
+	struct fab_scan_rp *rp;
+	unsigned long flags;
+
+	ql_dbg(ql_dbg_disc, vha, 0xffff,
+	    "%s enter\n", __func__);
+
+	if (sp->gen1 != vha->hw->base_qpair->chip_reset) {
+		ql_dbg(ql_dbg_disc, vha, 0xffff,
+		    "%s scan stop due to chip reset %x/%x\n",
+		    sp->name, sp->gen1, vha->hw->base_qpair->chip_reset);
+		goto out;
+	}
+
+	rc = sp->rc;
+	if (rc) {
+		vha->scan.scan_retry++;
+		if (vha->scan.scan_retry < MAX_SCAN_RETRIES) {
+			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
+			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
+		} else {
+			ql_dbg(ql_dbg_disc, vha, 0xffff,
+			    "Fabric scan failed on all retries.\n");
+		}
+		goto out;
+	}
+	vha->scan.scan_retry = 0;
+
+	list_for_each_entry(fcport, &vha->vp_fcports, list)
+		fcport->scan_state = QLA_FCPORT_SCAN;
+
+	for (i = 0; i < vha->hw->max_fibre_devices; i++) {
+		u64 wwn;
+
+		rp = &vha->scan.l[i];
+		found = false;
+
+		wwn = wwn_to_u64(rp->port_name);
+		if (wwn == 0)
+			continue;
+
+		if (!memcmp(rp->port_name, vha->port_name, WWN_SIZE))
+			continue;
+
+		/* Bypass reserved domain fields. */
+		if ((rp->id.b.domain & 0xf0) == 0xf0)
+			continue;
+
+		/* Bypass virtual ports of the same host. */
+		if (qla2x00_is_a_vp(vha, wwn))
+			continue;
+
+		list_for_each_entry(fcport, &vha->vp_fcports, list) {
+			if (memcmp(rp->port_name, fcport->port_name, WWN_SIZE))
+				continue;
+			fcport->scan_state = QLA_FCPORT_FOUND;
+			fcport->d_id.b24 = rp->id.b24;
+			found = true;
+			/*
+			 * If device was not a fabric device before.
+			 */
+			if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
+				qla2x00_clear_loop_id(fcport);
+				fcport->flags |= FCF_FABRIC_DEVICE;
+			}
+			break;
+		}
+
+		if (!found) {
+			ql_dbg(ql_dbg_disc, vha, 0xffff,
+			    "%s %d %8phC post new sess\n",
+			    __func__, __LINE__, rp->port_name);
+			qla24xx_post_newsess_work(vha, &rp->id, rp->port_name,
+			    rp->node_name, NULL, fc4type);
+		}
+	}
+
+	/*
+	 * Logout all previous fabric dev marked lost, except FCP2 devices.
+	 */
+	list_for_each_entry(fcport, &vha->vp_fcports, list) {
+		if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
+			continue;
+
+		if (fcport->scan_state != QLA_FCPORT_FOUND) {
+			if ((qla_dual_mode_enabled(vha) ||
+				qla_ini_mode_enabled(vha)) &&
+			    atomic_read(&fcport->state) == FCS_ONLINE) {
+				qla2x00_mark_device_lost(vha, fcport,
+				    ql2xplogiabsentdevice, 0);
+
+				if (fcport->loop_id != FC_NO_LOOP_ID &&
+				    (fcport->flags & FCF_FCP2_DEVICE) == 0) {
+					ql_dbg(ql_dbg_disc, vha, 0x20f0,
+					    "%s %d %8phC post del sess\n",
+					    __func__, __LINE__,
+					    fcport->port_name);
+
+					qlt_schedule_sess_for_deletion(fcport);
+					continue;
+				}
+			}
+		} else
+			qla24xx_fcport_handle_login(vha, fcport);
+	}
+
+out:
+	qla24xx_sp_unmap(vha, sp);
+	spin_lock_irqsave(&vha->work_lock, flags);
+	vha->scan.scan_flags &= ~SF_SCANNING;
+	spin_unlock_irqrestore(&vha->work_lock, flags);
+}
+
+static void qla2x00_async_gpnft_gnnft_sp_done(void *s, int res)
+{
+	struct srb *sp = s;
+	struct scsi_qla_host *vha = sp->vha;
+	struct qla_work_evt *e;
+	struct ct_sns_req *ct_req =
+		(struct ct_sns_req *)sp->u.iocb_cmd.u.ctarg.req;
+	struct ct_sns_gpnft_rsp *ct_rsp =
+		(struct ct_sns_gpnft_rsp *)sp->u.iocb_cmd.u.ctarg.rsp;
+	struct ct_sns_gpn_ft_data *d;
+	struct fab_scan_rp *rp;
+	int i, j, k;
+	u16 cmd = be16_to_cpu(ct_req->command);
+
+	/* gen2 field is holding the fc4type */
+	ql_dbg(ql_dbg_disc, vha, 0xffff,
+	    "Async done-%s res %x FC4Type %x\n",
+	    sp->name, res, sp->gen2);
+
+	if (res) {
+		unsigned long flags;
+
+		sp->free(sp);
+		spin_lock_irqsave(&vha->work_lock, flags);
+		vha->scan.scan_flags &= ~SF_SCANNING;
+		vha->scan.scan_retry++;
+		spin_unlock_irqrestore(&vha->work_lock, flags);
+
+		if (vha->scan.scan_retry < MAX_SCAN_RETRIES) {
+			set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
+			set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
+			qla2xxx_wake_dpc(vha);
+		} else {
+			ql_dbg(ql_dbg_disc, sp->vha, 0xffff,
+			    "Async done-%s rescan failed on all retries\n",
+			    sp->name);
+		}
+		return;
+	}
+
+	if (!res) {
+		port_id_t id;
+		u64 wwn;
+
+		j = 0;
+		for (i = 0; i < vha->hw->max_fibre_devices; i++) {
+			d  = &ct_rsp->entries[i];
+
+			id.b.rsvd_1 = 0;
+			id.b.domain = d->port_id[0];
+			id.b.area   = d->port_id[1];
+			id.b.al_pa  = d->port_id[2];
+			wwn = wwn_to_u64(d->port_name);
+
+			if (id.b24 == 0 || wwn == 0)
+				continue;
+
+			if (cmd == GPN_FT_CMD) {
+				rp = &vha->scan.l[j];
+				rp->id = id;
+				memcpy(rp->port_name, d->port_name, 8);
+				j++;
+			} else {/* GNN_FT_CMD */
+				for (k = 0; k < vha->hw->max_fibre_devices;
+				    k++) {
+					rp = &vha->scan.l[k];
+					if (id.b24 == rp->id.b24) {
+						memcpy(rp->node_name,
+						    d->port_name, 8);
+						break;
+					}
+				}
+			}
+		}
+	}
+
+	if (cmd == GPN_FT_CMD)
+		e = qla2x00_alloc_work(vha, QLA_EVT_GPNFT_DONE);
+	else
+		e = qla2x00_alloc_work(vha, QLA_EVT_GNNFT_DONE);
+	if (!e) {
+		/* please ignore kernel warning. Otherwise, we have mem leak. */
+		if (sp->u.iocb_cmd.u.ctarg.req) {
+			dma_free_coherent(&vha->hw->pdev->dev,
+			    sizeof(struct ct_sns_pkt),
+			    sp->u.iocb_cmd.u.ctarg.req,
+			    sp->u.iocb_cmd.u.ctarg.req_dma);
+			sp->u.iocb_cmd.u.ctarg.req = NULL;
+		}
+		if (sp->u.iocb_cmd.u.ctarg.rsp) {
+			dma_free_coherent(&vha->hw->pdev->dev,
+			    sizeof(struct ct_sns_pkt),
+			    sp->u.iocb_cmd.u.ctarg.rsp,
+			    sp->u.iocb_cmd.u.ctarg.rsp_dma);
+			sp->u.iocb_cmd.u.ctarg.rsp = NULL;
+		}
+
+		ql_dbg(ql_dbg_disc, vha, 0xffff,
+		    "Async done-%s unable to alloc work element\n",
+		    sp->name);
+		sp->free(sp);
+		set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
+		set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
+		return;
+	}
+
+	sp->rc = res;
+	e->u.iosb.sp = sp;
+
+	qla2x00_post_work(vha, e);
+}
+
+/*
+ * Get WWNN list for fc4_type
+ *
+ * It is assumed the same SRB is re-used from GPNFT to avoid
+ * mem free & re-alloc
+ */
+static int qla24xx_async_gnnft(scsi_qla_host_t *vha, struct srb *sp,
+    u8 fc4_type)
+{
+	int rval = QLA_FUNCTION_FAILED;
+	struct ct_sns_req *ct_req;
+	struct ct_sns_pkt *ct_sns;
+
+	if (!vha->flags.online) {
+		vha->scan.scan_flags &= ~SF_SCANNING;
+		goto done_free_sp;
+	}
+
+	if (!sp->u.iocb_cmd.u.ctarg.req || !sp->u.iocb_cmd.u.ctarg.rsp) {
+		ql_log(ql_log_warn, vha, 0xffff,
+		    "%s: req %p rsp %p are not setup\n",
+		    __func__, sp->u.iocb_cmd.u.ctarg.req,
+		    sp->u.iocb_cmd.u.ctarg.rsp);
+		vha->scan.scan_flags &= ~SF_SCANNING;
+		WARN_ON(1);
+		goto done_free_sp;
+	}
+	sp->type = SRB_CT_PTHRU_CMD;
+	sp->name = "gnnft";
+	sp->gen1 = vha->hw->base_qpair->chip_reset;
+	sp->gen2 = fc4_type;
+	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
+
+	memset(sp->u.iocb_cmd.u.ctarg.rsp, 0, sp->u.iocb_cmd.u.ctarg.rsp_size);
+	memset(sp->u.iocb_cmd.u.ctarg.req, 0, sp->u.iocb_cmd.u.ctarg.req_size);
+
+	ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.req;
+	/* CT_IU preamble  */
+	ct_req = qla2x00_prep_ct_req(ct_sns, GNN_FT_CMD,
+	    sp->u.iocb_cmd.u.ctarg.rsp_size);
+
+	/* GPN_FT req */
+	ct_req->req.gpn_ft.port_type = fc4_type;
+
+	sp->u.iocb_cmd.u.ctarg.req_size = GNN_FT_REQ_SIZE;
+	sp->u.iocb_cmd.u.ctarg.nport_handle = NPH_SNS;
+
+	sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
+	sp->done = qla2x00_async_gpnft_gnnft_sp_done;
+
+	rval = qla2x00_start_sp(sp);
+	if (rval != QLA_SUCCESS)
+		goto done_free_sp;
+
+	ql_dbg(ql_dbg_disc, vha, 0xffff,
+	    "Async-%s hdl=%x FC4Type %x.\n", sp->name,
+	    sp->handle, ct_req->req.gpn_ft.port_type);
+	return rval;
+
+done_free_sp:
+	if (sp->u.iocb_cmd.u.ctarg.req) {
+		dma_free_coherent(&vha->hw->pdev->dev,
+		    sizeof(struct ct_sns_pkt),
+		    sp->u.iocb_cmd.u.ctarg.req,
+		    sp->u.iocb_cmd.u.ctarg.req_dma);
+		sp->u.iocb_cmd.u.ctarg.req = NULL;
+	}
+	if (sp->u.iocb_cmd.u.ctarg.rsp) {
+		dma_free_coherent(&vha->hw->pdev->dev,
+		    sizeof(struct ct_sns_pkt),
+		    sp->u.iocb_cmd.u.ctarg.rsp,
+		    sp->u.iocb_cmd.u.ctarg.rsp_dma);
+		sp->u.iocb_cmd.u.ctarg.rsp = NULL;
+	}
+
+	sp->free(sp);
+
+	return rval;
+} /* GNNFT */
+
+void qla24xx_async_gpnft_done(scsi_qla_host_t *vha, srb_t *sp)
+{
+	ql_dbg(ql_dbg_disc, vha, 0xffff,
+	    "%s enter\n", __func__);
+	del_timer(&sp->u.iocb_cmd.timer);
+	qla24xx_async_gnnft(vha, sp, sp->gen2);
+}
+
+/* Get WWPN list for certain fc4_type */
+int qla24xx_async_gpnft(scsi_qla_host_t *vha, u8 fc4_type)
+{
+	int rval = QLA_FUNCTION_FAILED;
+	struct ct_sns_req       *ct_req;
+	srb_t *sp;
+	struct ct_sns_pkt *ct_sns;
+	u32 rspsz;
+	unsigned long flags;
+
+	if (!vha->flags.online)
+		return rval;
+
+	spin_lock_irqsave(&vha->work_lock, flags);
+	if (vha->scan.scan_flags & SF_SCANNING) {
+		spin_unlock_irqrestore(&vha->work_lock, flags);
+		ql_dbg(ql_dbg_disc, vha, 0xffff, "scan active\n");
+		return rval;
+	}
+	vha->scan.scan_flags |= SF_SCANNING;
+	spin_unlock_irqrestore(&vha->work_lock, flags);
+
+	sp = qla2x00_get_sp(vha, NULL, GFP_KERNEL);
+	if (!sp) {
+		vha->scan.scan_flags &= ~SF_SCANNING;
+		return rval;
+	}
+
+	sp->type = SRB_CT_PTHRU_CMD;
+	sp->name = "gpnft";
+	sp->gen1 = vha->hw->base_qpair->chip_reset;
+	sp->gen2 = fc4_type;
+	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
+
+	sp->u.iocb_cmd.u.ctarg.req = dma_zalloc_coherent(&vha->hw->pdev->dev,
+	    sizeof(struct ct_sns_pkt), &sp->u.iocb_cmd.u.ctarg.req_dma,
+	    GFP_KERNEL);
+	if (!sp->u.iocb_cmd.u.ctarg.req) {
+		ql_log(ql_log_warn, vha, 0xffff,
+		    "Failed to allocate ct_sns request.\n");
+		vha->scan.scan_flags &= ~SF_SCANNING;
+		goto done_free_sp;
+	}
+
+	rspsz = sizeof(struct ct_sns_gpnft_rsp) +
+		((vha->hw->max_fibre_devices - 1) *
+		    sizeof(struct ct_sns_gpn_ft_data));
+
+	sp->u.iocb_cmd.u.ctarg.rsp = dma_zalloc_coherent(&vha->hw->pdev->dev,
+	    rspsz, &sp->u.iocb_cmd.u.ctarg.rsp_dma, GFP_KERNEL);
+	if (!sp->u.iocb_cmd.u.ctarg.rsp) {
+		ql_log(ql_log_warn, vha, 0xffff,
+		    "Failed to allocate ct_sns request.\n");
+		vha->scan.scan_flags &= ~SF_SCANNING;
+		goto done_free_sp;
+	}
+
+	memset(vha->scan.l, 0, vha->scan.size);
+
+	ct_sns = (struct ct_sns_pkt *)sp->u.iocb_cmd.u.ctarg.req;
+	/* CT_IU preamble  */
+	ct_req = qla2x00_prep_ct_req(ct_sns, GPN_FT_CMD, rspsz);
+
+	/* GPN_FT req */
+	ct_req->req.gpn_ft.port_type = fc4_type;
+
+	sp->u.iocb_cmd.u.ctarg.req_size = GPN_FT_REQ_SIZE;
+	sp->u.iocb_cmd.u.ctarg.rsp_size = rspsz;
+	sp->u.iocb_cmd.u.ctarg.nport_handle = NPH_SNS;
+
+	sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
+	sp->done = qla2x00_async_gpnft_gnnft_sp_done;
+
+	rval = qla2x00_start_sp(sp);
+	if (rval != QLA_SUCCESS) {
+		vha->scan.scan_flags &= ~SF_SCANNING;
+		goto done_free_sp;
+	}
+
+	ql_dbg(ql_dbg_disc, vha, 0xffff,
+	    "Async-%s hdl=%x FC4Type %x.\n", sp->name,
+	    sp->handle, ct_req->req.gpn_ft.port_type);
+	return rval;
+
+done_free_sp:
+	if (sp->u.iocb_cmd.u.ctarg.req) {
+		dma_free_coherent(&vha->hw->pdev->dev,
+		    sizeof(struct ct_sns_pkt),
+		    sp->u.iocb_cmd.u.ctarg.req,
+		    sp->u.iocb_cmd.u.ctarg.req_dma);
+		sp->u.iocb_cmd.u.ctarg.req = NULL;
+	}
+	if (sp->u.iocb_cmd.u.ctarg.rsp) {
+		dma_free_coherent(&vha->hw->pdev->dev,
+		    sizeof(struct ct_sns_pkt),
+		    sp->u.iocb_cmd.u.ctarg.rsp,
+		    sp->u.iocb_cmd.u.ctarg.rsp_dma);
+		sp->u.iocb_cmd.u.ctarg.rsp = NULL;
+	}
+
+	sp->free(sp);
+
+	return rval;
+}
+
+void qla_scan_work_fn(struct work_struct *work)
+{
+	struct fab_scan *s = container_of(to_delayed_work(work),
+	    struct fab_scan, scan_work);
+	struct scsi_qla_host *vha = container_of(s, struct scsi_qla_host,
+	    scan);
+	unsigned long flags;
+
+	ql_dbg(ql_dbg_disc, vha, 0xffff,
+	    "%s: schedule loop resync\n", __func__);
+	set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
+	set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
+	qla2xxx_wake_dpc(vha);
+	spin_lock_irqsave(&vha->work_lock, flags);
+	vha->scan.scan_flags &= ~SF_QUEUED;
+	spin_unlock_irqrestore(&vha->work_lock, flags);
+}
+
+/* GNN_ID */
+void qla24xx_handle_gnnid_event(scsi_qla_host_t *vha, struct event_arg *ea)
+{
+	qla24xx_post_gnl_work(vha, ea->fcport);
+}
+
+static void qla2x00_async_gnnid_sp_done(void *s, int res)
+{
+	struct srb *sp = s;
+	struct scsi_qla_host *vha = sp->vha;
+	fc_port_t *fcport = sp->fcport;
+	u8 *node_name = fcport->ct_desc.ct_sns->p.rsp.rsp.gnn_id.node_name;
+	struct event_arg ea;
+	u64 wwnn;
+
+	fcport->flags &= ~FCF_ASYNC_SENT;
+	wwnn = wwn_to_u64(node_name);
+	if (wwnn)
+		memcpy(fcport->node_name, node_name, WWN_SIZE);
+
+	memset(&ea, 0, sizeof(ea));
+	ea.fcport = fcport;
+	ea.sp = sp;
+	ea.rc = res;
+	ea.event = FCME_GNNID_DONE;
+
+	ql_dbg(ql_dbg_disc, vha, 0x204f,
+	    "Async done-%s res %x, WWPN %8phC %8phC\n",
+	    sp->name, res, fcport->port_name, fcport->node_name);
+
+	qla2x00_fcport_event_handler(vha, &ea);
+
+	sp->free(sp);
+}
+
+int qla24xx_async_gnnid(scsi_qla_host_t *vha, fc_port_t *fcport)
+{
+	int rval = QLA_FUNCTION_FAILED;
+	struct ct_sns_req       *ct_req;
+	srb_t *sp;
+
+	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
+		return rval;
+
+	fcport->disc_state = DSC_GNN_ID;
+	sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
+	if (!sp)
+		goto done;
+
+	fcport->flags |= FCF_ASYNC_SENT;
+	sp->type = SRB_CT_PTHRU_CMD;
+	sp->name = "gnnid";
+	sp->gen1 = fcport->rscn_gen;
+	sp->gen2 = fcport->login_gen;
+
+	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
+
+	/* CT_IU preamble  */
+	ct_req = qla2x00_prep_ct_req(fcport->ct_desc.ct_sns, GNN_ID_CMD,
+	    GNN_ID_RSP_SIZE);
+
+	/* GNN_ID req */
+	ct_req->req.port_id.port_id[0] = fcport->d_id.b.domain;
+	ct_req->req.port_id.port_id[1] = fcport->d_id.b.area;
+	ct_req->req.port_id.port_id[2] = fcport->d_id.b.al_pa;
+
+
+	/* req & rsp use the same buffer */
+	sp->u.iocb_cmd.u.ctarg.req = fcport->ct_desc.ct_sns;
+	sp->u.iocb_cmd.u.ctarg.req_dma = fcport->ct_desc.ct_sns_dma;
+	sp->u.iocb_cmd.u.ctarg.rsp = fcport->ct_desc.ct_sns;
+	sp->u.iocb_cmd.u.ctarg.rsp_dma = fcport->ct_desc.ct_sns_dma;
+	sp->u.iocb_cmd.u.ctarg.req_size = GNN_ID_REQ_SIZE;
+	sp->u.iocb_cmd.u.ctarg.rsp_size = GNN_ID_RSP_SIZE;
+	sp->u.iocb_cmd.u.ctarg.nport_handle = NPH_SNS;
+
+	sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
+	sp->done = qla2x00_async_gnnid_sp_done;
+
+	rval = qla2x00_start_sp(sp);
+	if (rval != QLA_SUCCESS)
+		goto done_free_sp;
+	ql_dbg(ql_dbg_disc, vha, 0xffff,
+	    "Async-%s - %8phC hdl=%x loopid=%x portid %06x.\n",
+	    sp->name, fcport->port_name,
+	    sp->handle, fcport->loop_id, fcport->d_id.b24);
+	return rval;
+
+done_free_sp:
+	sp->free(sp);
+	fcport->flags &= ~FCF_ASYNC_SENT;
+done:
+	return rval;
+}
+
+int qla24xx_post_gnnid_work(struct scsi_qla_host *vha, fc_port_t *fcport)
+{
+	struct qla_work_evt *e;
+	int ls;
+
+	ls = atomic_read(&vha->loop_state);
+	if (((ls != LOOP_READY) && (ls != LOOP_UP)) ||
+		test_bit(UNLOADING, &vha->dpc_flags))
+		return 0;
+
+	e = qla2x00_alloc_work(vha, QLA_EVT_GNNID);
+	if (!e)
+		return QLA_FUNCTION_FAILED;
+
+	e->u.fcport.fcport = fcport;
+	return qla2x00_post_work(vha, e);
+}
+
+/* GPFN_ID */
+void qla24xx_handle_gfpnid_event(scsi_qla_host_t *vha, struct event_arg *ea)
+{
+	fc_port_t *fcport = ea->fcport;
+
+	ql_dbg(ql_dbg_disc, vha, 0xffff,
+	    "%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d fcpcnt %d\n",
+	    __func__, fcport->port_name, fcport->disc_state,
+	    fcport->fw_login_state, ea->rc, fcport->login_gen, ea->sp->gen2,
+	    fcport->rscn_gen, ea->sp->gen1, vha->fcport_count);
+
+	if (fcport->disc_state == DSC_DELETE_PEND)
+		return;
+
+	if (ea->sp->gen2 != fcport->login_gen) {
+		/* target side must have changed it. */
+		ql_dbg(ql_dbg_disc, vha, 0x20d3,
+		    "%s %8phC generation changed\n",
+		    __func__, fcport->port_name);
+		return;
+	} else if (ea->sp->gen1 != fcport->rscn_gen) {
+		ql_dbg(ql_dbg_disc, vha, 0x20d4, "%s %d %8phC post gidpn\n",
+		    __func__, __LINE__, fcport->port_name);
+		qla24xx_post_gidpn_work(vha, fcport);
+		return;
+	}
+
+	qla24xx_post_gpsc_work(vha, fcport);
+}
+
+static void qla2x00_async_gfpnid_sp_done(void *s, int res)
+{
+	struct srb *sp = s;
+	struct scsi_qla_host *vha = sp->vha;
+	fc_port_t *fcport = sp->fcport;
+	u8 *fpn = fcport->ct_desc.ct_sns->p.rsp.rsp.gfpn_id.port_name;
+	struct event_arg ea;
+	u64 wwn;
+
+	fcport->flags &= ~FCF_ASYNC_SENT;
+	wwn = wwn_to_u64(fpn);
+	if (wwn)
+		memcpy(fcport->fabric_port_name, fpn, WWN_SIZE);
+
+	memset(&ea, 0, sizeof(ea));
+	ea.fcport = fcport;
+	ea.sp = sp;
+	ea.rc = res;
+	ea.event = FCME_GFPNID_DONE;
+
+	ql_dbg(ql_dbg_disc, vha, 0x204f,
+	    "Async done-%s res %x, WWPN %8phC %8phC\n",
+	    sp->name, res, fcport->port_name, fcport->fabric_port_name);
+
+	qla2x00_fcport_event_handler(vha, &ea);
+
+	sp->free(sp);
+}
+
+int qla24xx_async_gfpnid(scsi_qla_host_t *vha, fc_port_t *fcport)
+{
+	int rval = QLA_FUNCTION_FAILED;
+	struct ct_sns_req       *ct_req;
+	srb_t *sp;
+
+	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
+		return rval;
+
+	fcport->disc_state = DSC_GFPN_ID;
+	sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
+	if (!sp)
+		goto done;
+
+	fcport->flags |= FCF_ASYNC_SENT;
+	sp->type = SRB_CT_PTHRU_CMD;
+	sp->name = "gfpnid";
+	sp->gen1 = fcport->rscn_gen;
+	sp->gen2 = fcport->login_gen;
+
+	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
+
+	/* CT_IU preamble  */
+	ct_req = qla2x00_prep_ct_req(fcport->ct_desc.ct_sns, GFPN_ID_CMD,
+	    GFPN_ID_RSP_SIZE);
+
+	/* GFPN_ID req */
+	ct_req->req.port_id.port_id[0] = fcport->d_id.b.domain;
+	ct_req->req.port_id.port_id[1] = fcport->d_id.b.area;
+	ct_req->req.port_id.port_id[2] = fcport->d_id.b.al_pa;
+
+
+	/* req & rsp use the same buffer */
+	sp->u.iocb_cmd.u.ctarg.req = fcport->ct_desc.ct_sns;
+	sp->u.iocb_cmd.u.ctarg.req_dma = fcport->ct_desc.ct_sns_dma;
+	sp->u.iocb_cmd.u.ctarg.rsp = fcport->ct_desc.ct_sns;
+	sp->u.iocb_cmd.u.ctarg.rsp_dma = fcport->ct_desc.ct_sns_dma;
+	sp->u.iocb_cmd.u.ctarg.req_size = GFPN_ID_REQ_SIZE;
+	sp->u.iocb_cmd.u.ctarg.rsp_size = GFPN_ID_RSP_SIZE;
+	sp->u.iocb_cmd.u.ctarg.nport_handle = NPH_SNS;
+
+	sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
+	sp->done = qla2x00_async_gfpnid_sp_done;
+
+	rval = qla2x00_start_sp(sp);
+	if (rval != QLA_SUCCESS)
+		goto done_free_sp;
+
+	ql_dbg(ql_dbg_disc, vha, 0xffff,
+	    "Async-%s - %8phC hdl=%x loopid=%x portid %06x.\n",
+	    sp->name, fcport->port_name,
+	    sp->handle, fcport->loop_id, fcport->d_id.b24);
+	return rval;
+
+done_free_sp:
+	sp->free(sp);
+	fcport->flags &= ~FCF_ASYNC_SENT;
+done:
+	return rval;
+}
+
+int qla24xx_post_gfpnid_work(struct scsi_qla_host *vha, fc_port_t *fcport)
+{
+	struct qla_work_evt *e;
+	int ls;
+
+	ls = atomic_read(&vha->loop_state);
+	if (((ls != LOOP_READY) && (ls != LOOP_UP)) ||
+		test_bit(UNLOADING, &vha->dpc_flags))
+		return 0;
+
+	e = qla2x00_alloc_work(vha, QLA_EVT_GFPNID);
+	if (!e)
+		return QLA_FUNCTION_FAILED;
+
+	e->u.fcport.fcport = fcport;
+	return qla2x00_post_work(vha, e);
+}
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 1bafa043f9f1..aececf664654 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -41,6 +41,7 @@ static void qla24xx_handle_plogi_done_event(struct scsi_qla_host *,
     struct event_arg *);
 static void qla24xx_handle_prli_done_event(struct scsi_qla_host *,
     struct event_arg *);
+static void __qla24xx_handle_gpdb_event(scsi_qla_host_t *, struct event_arg *);
 
 /* SRB Extensions ---------------------------------------------------------- */
 
@@ -58,7 +59,8 @@ qla2x00_sp_timeout(struct timer_list *t)
 	req->outstanding_cmds[sp->handle] = NULL;
 	iocb = &sp->u.iocb_cmd;
 	iocb->timeout(sp);
-	sp->free(sp);
+	if (sp->type != SRB_ELS_DCMD)
+		sp->free(sp);
 	spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
 }
 
@@ -102,14 +104,21 @@ qla2x00_async_iocb_timeout(void *data)
 	struct srb_iocb *lio = &sp->u.iocb_cmd;
 	struct event_arg ea;
 
-	ql_dbg(ql_dbg_disc, fcport->vha, 0x2071,
-	    "Async-%s timeout - hdl=%x portid=%06x %8phC.\n",
-	    sp->name, sp->handle, fcport->d_id.b24, fcport->port_name);
+	if (fcport) {
+		ql_dbg(ql_dbg_disc, fcport->vha, 0x2071,
+		    "Async-%s timeout - hdl=%x portid=%06x %8phC.\n",
+		    sp->name, sp->handle, fcport->d_id.b24, fcport->port_name);
 
-	fcport->flags &= ~FCF_ASYNC_SENT;
+		fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
+	} else {
+		pr_info("Async-%s timeout - hdl=%x.\n",
+		    sp->name, sp->handle);
+	}
 
 	switch (sp->type) {
 	case SRB_LOGIN_CMD:
+		if (!fcport)
+			break;
 		/* Retry as needed. */
 		lio->u.logio.data[0] = MBS_COMMAND_ERROR;
 		lio->u.logio.data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
@@ -123,6 +132,8 @@ qla2x00_async_iocb_timeout(void *data)
 		qla24xx_handle_plogi_done_event(fcport->vha, &ea);
 		break;
 	case SRB_LOGOUT_CMD:
+		if (!fcport)
+			break;
 		qlt_logo_completion_handler(fcport, QLA_FUNCTION_TIMEOUT);
 		break;
 	case SRB_CT_PTHRU_CMD:
@@ -130,6 +141,7 @@ qla2x00_async_iocb_timeout(void *data)
 	case SRB_NACK_PLOGI:
 	case SRB_NACK_PRLI:
 	case SRB_NACK_LOGO:
+	case SRB_CTRL_VP:
 		sp->done(sp, QLA_FUNCTION_TIMEOUT);
 		break;
 	}
@@ -146,7 +158,8 @@ qla2x00_async_login_sp_done(void *ptr, int res)
 	ql_dbg(ql_dbg_disc, vha, 0x20dd,
 	    "%s %8phC res %d \n", __func__, sp->fcport->port_name, res);
 
-	sp->fcport->flags &= ~FCF_ASYNC_SENT;
+	sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
+
 	if (!test_bit(UNLOADING, &vha->dpc_flags)) {
 		memset(&ea, 0, sizeof(ea));
 		ea.event = FCME_PLOGI_DONE;
@@ -173,11 +186,6 @@ qla2x00_async_login(struct scsi_qla_host *vha, fc_port_t *fcport,
 	if (!vha->flags.online)
 		goto done;
 
-	if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
-	    (fcport->fw_login_state == DSC_LS_PLOGI_COMP) ||
-	    (fcport->fw_login_state == DSC_LS_PRLI_PEND))
-		goto done;
-
 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
 	if (!sp)
 		goto done;
@@ -185,8 +193,11 @@ qla2x00_async_login(struct scsi_qla_host *vha, fc_port_t *fcport,
 	fcport->flags |= FCF_ASYNC_SENT;
 	fcport->logout_completed = 0;
 
+	fcport->disc_state = DSC_LOGIN_PEND;
 	sp->type = SRB_LOGIN_CMD;
 	sp->name = "login";
+	sp->gen1 = fcport->rscn_gen;
+	sp->gen2 = fcport->login_gen;
 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
 
 	lio = &sp->u.iocb_cmd;
@@ -201,7 +212,6 @@ qla2x00_async_login(struct scsi_qla_host *vha, fc_port_t *fcport,
 		lio->u.logio.flags |= SRB_LOGIN_RETRIED;
 	rval = qla2x00_start_sp(sp);
 	if (rval != QLA_SUCCESS) {
-		fcport->flags &= ~FCF_ASYNC_SENT;
 		fcport->flags |= FCF_LOGIN_NEEDED;
 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
 		goto done_free_sp;
@@ -216,8 +226,8 @@ qla2x00_async_login(struct scsi_qla_host *vha, fc_port_t *fcport,
 
 done_free_sp:
 	sp->free(sp);
-done:
 	fcport->flags &= ~FCF_ASYNC_SENT;
+done:
 	return rval;
 }
 
@@ -227,7 +237,7 @@ qla2x00_async_logout_sp_done(void *ptr, int res)
 	srb_t *sp = ptr;
 	struct srb_iocb *lio = &sp->u.iocb_cmd;
 
-	sp->fcport->flags &= ~FCF_ASYNC_SENT;
+	sp->fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
 	if (!test_bit(UNLOADING, &sp->vha->dpc_flags))
 		qla2x00_post_async_logout_done_work(sp->vha, sp->fcport,
 		    lio->u.logio.data);
@@ -239,9 +249,11 @@ qla2x00_async_logout(struct scsi_qla_host *vha, fc_port_t *fcport)
 {
 	srb_t *sp;
 	struct srb_iocb *lio;
-	int rval;
+	int rval = QLA_FUNCTION_FAILED;
+
+	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
+		return rval;
 
-	rval = QLA_FUNCTION_FAILED;
 	fcport->flags |= FCF_ASYNC_SENT;
 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
 	if (!sp)
@@ -272,16 +284,126 @@ done:
 	return rval;
 }
 
+void
+qla2x00_async_prlo_done(struct scsi_qla_host *vha, fc_port_t *fcport,
+    uint16_t *data)
+{
+	/* Don't re-login in target mode */
+	if (!fcport->tgt_session)
+		qla2x00_mark_device_lost(vha, fcport, 1, 0);
+	qlt_logo_completion_handler(fcport, data[0]);
+}
+
+static void
+qla2x00_async_prlo_sp_done(void *s, int res)
+{
+	srb_t *sp = (srb_t *)s;
+	struct srb_iocb *lio = &sp->u.iocb_cmd;
+	struct scsi_qla_host *vha = sp->vha;
+
+	if (!test_bit(UNLOADING, &vha->dpc_flags))
+		qla2x00_post_async_prlo_done_work(sp->fcport->vha, sp->fcport,
+		    lio->u.logio.data);
+	sp->free(sp);
+}
+
+int
+qla2x00_async_prlo(struct scsi_qla_host *vha, fc_port_t *fcport)
+{
+	srb_t *sp;
+	struct srb_iocb *lio;
+	int rval;
+
+	rval = QLA_FUNCTION_FAILED;
+	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
+	if (!sp)
+		goto done;
+
+	sp->type = SRB_PRLO_CMD;
+	sp->name = "prlo";
+	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
+
+	lio = &sp->u.iocb_cmd;
+	lio->timeout = qla2x00_async_iocb_timeout;
+	sp->done = qla2x00_async_prlo_sp_done;
+	rval = qla2x00_start_sp(sp);
+	if (rval != QLA_SUCCESS)
+		goto done_free_sp;
+
+	ql_dbg(ql_dbg_disc, vha, 0x2070,
+	    "Async-prlo - hdl=%x loop-id=%x portid=%02x%02x%02x.\n",
+	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
+	    fcport->d_id.b.area, fcport->d_id.b.al_pa);
+	return rval;
+
+done_free_sp:
+	sp->free(sp);
+done:
+	return rval;
+}
+
+static
+void qla24xx_handle_adisc_event(scsi_qla_host_t *vha, struct event_arg *ea)
+{
+	struct fc_port *fcport = ea->fcport;
+
+	ql_dbg(ql_dbg_disc, vha, 0x20d2,
+	    "%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d lid %d\n",
+	    __func__, fcport->port_name, fcport->disc_state,
+	    fcport->fw_login_state, ea->rc, fcport->login_gen, ea->sp->gen2,
+	    fcport->rscn_gen, ea->sp->gen1, fcport->loop_id);
+
+	if (ea->data[0] != MBS_COMMAND_COMPLETE) {
+		ql_dbg(ql_dbg_disc, vha, 0x2066,
+		    "%s %8phC: adisc fail: post delete\n",
+		    __func__, ea->fcport->port_name);
+		qlt_schedule_sess_for_deletion(ea->fcport);
+		return;
+	}
+
+	if (ea->fcport->disc_state == DSC_DELETE_PEND)
+		return;
+
+	if (ea->sp->gen2 != ea->fcport->login_gen) {
+		/* target side must have changed it. */
+		ql_dbg(ql_dbg_disc, vha, 0x20d3,
+		    "%s %8phC generation changed\n",
+		    __func__, ea->fcport->port_name);
+		return;
+	} else if (ea->sp->gen1 != ea->fcport->rscn_gen) {
+		ql_dbg(ql_dbg_disc, vha, 0x20d4, "%s %d %8phC post gidpn\n",
+		    __func__, __LINE__, ea->fcport->port_name);
+		qla24xx_post_gidpn_work(vha, ea->fcport);
+		return;
+	}
+
+	__qla24xx_handle_gpdb_event(vha, ea);
+}
+
 static void
 qla2x00_async_adisc_sp_done(void *ptr, int res)
 {
 	srb_t *sp = ptr;
 	struct scsi_qla_host *vha = sp->vha;
+	struct event_arg ea;
 	struct srb_iocb *lio = &sp->u.iocb_cmd;
 
-	if (!test_bit(UNLOADING, &vha->dpc_flags))
-		qla2x00_post_async_adisc_done_work(sp->vha, sp->fcport,
-		    lio->u.logio.data);
+	ql_dbg(ql_dbg_disc, vha, 0x2066,
+	    "Async done-%s res %x %8phC\n",
+	    sp->name, res, sp->fcport->port_name);
+
+	memset(&ea, 0, sizeof(ea));
+	ea.event = FCME_ADISC_DONE;
+	ea.rc = res;
+	ea.data[0] = lio->u.logio.data[0];
+	ea.data[1] = lio->u.logio.data[1];
+	ea.iop[0] = lio->u.logio.iop[0];
+	ea.iop[1] = lio->u.logio.iop[1];
+	ea.fcport = sp->fcport;
+	ea.sp = sp;
+
+	qla2x00_fcport_event_handler(vha, &ea);
+
 	sp->free(sp);
 }
 
@@ -313,15 +435,15 @@ qla2x00_async_adisc(struct scsi_qla_host *vha, fc_port_t *fcport,
 		goto done_free_sp;
 
 	ql_dbg(ql_dbg_disc, vha, 0x206f,
-	    "Async-adisc - hdl=%x loopid=%x portid=%02x%02x%02x.\n",
-	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
-	    fcport->d_id.b.area, fcport->d_id.b.al_pa);
+	    "Async-adisc - hdl=%x loopid=%x portid=%06x %8phC.\n",
+	    sp->handle, fcport->loop_id, fcport->d_id.b24, fcport->port_name);
 	return rval;
 
 done_free_sp:
 	sp->free(sp);
 done:
 	fcport->flags &= ~FCF_ASYNC_SENT;
+	qla2x00_post_async_adisc_work(vha, fcport, data);
 	return rval;
 }
 
@@ -333,9 +455,19 @@ static void qla24xx_handle_gnl_done_event(scsi_qla_host_t *vha,
 	u16 i, n, found = 0, loop_id;
 	port_id_t id;
 	u64 wwn;
-	u8 opt = 0, current_login_state;
+	u16 data[2];
+	u8 current_login_state;
 
 	fcport = ea->fcport;
+	ql_dbg(ql_dbg_disc, vha, 0xffff,
+	    "%s %8phC DS %d LS rc %d %d login %d|%d rscn %d|%d lid %d\n",
+	    __func__, fcport->port_name, fcport->disc_state,
+	    fcport->fw_login_state, ea->rc,
+	    fcport->login_gen, fcport->last_login_gen,
+	    fcport->rscn_gen, fcport->last_rscn_gen, vha->loop_id);
+
+	if (fcport->disc_state == DSC_DELETE_PEND)
+		return;
 
 	if (ea->rc) { /* rval */
 		if (fcport->login_retry == 0) {
@@ -356,9 +488,8 @@ static void qla24xx_handle_gnl_done_event(scsi_qla_host_t *vha,
 		return;
 	} else if (fcport->last_login_gen != fcport->login_gen) {
 		ql_dbg(ql_dbg_disc, vha, 0x20e0,
-		    "%s %8phC login gen changed login %d|%d\n",
-		    __func__, fcport->port_name,
-		    fcport->last_login_gen, fcport->login_gen);
+		    "%s %8phC login gen changed\n",
+		    __func__, fcport->port_name);
 		return;
 	}
 
@@ -400,7 +531,7 @@ static void qla24xx_handle_gnl_done_event(scsi_qla_host_t *vha,
 			ql_dbg(ql_dbg_disc, vha, 0x20e3,
 			    "%s %d %8phC post del sess\n",
 			    __func__, __LINE__, fcport->port_name);
-			qlt_schedule_sess_for_deletion(fcport, 1);
+			qlt_schedule_sess_for_deletion(fcport);
 			return;
 		}
 
@@ -430,8 +561,14 @@ static void qla24xx_handle_gnl_done_event(scsi_qla_host_t *vha,
 			ql_dbg(ql_dbg_disc, vha, 0x20e4,
 			    "%s %d %8phC post gpdb\n",
 			    __func__, __LINE__, fcport->port_name);
-			opt = PDO_FORCE_ADISC;
-			qla24xx_post_gpdb_work(vha, fcport, opt);
+
+			if ((e->prli_svc_param_word_3[0] & BIT_4) == 0)
+				fcport->port_type = FCT_INITIATOR;
+			else
+				fcport->port_type = FCT_TARGET;
+
+			data[0] = data[1] = 0;
+			qla2x00_post_async_adisc_work(vha, fcport, data);
 			break;
 		case DSC_LS_PORT_UNAVAIL:
 		default:
@@ -449,36 +586,29 @@ static void qla24xx_handle_gnl_done_event(scsi_qla_host_t *vha,
 
 	if (!found) {
 		/* fw has no record of this port */
-		if (fcport->loop_id == FC_NO_LOOP_ID) {
-			qla2x00_find_new_loop_id(vha, fcport);
-			fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
-		} else {
-			for (i = 0; i < n; i++) {
-				e = &vha->gnl.l[i];
-				id.b.domain = e->port_id[0];
-				id.b.area = e->port_id[1];
-				id.b.al_pa = e->port_id[2];
-				id.b.rsvd_1 = 0;
-				loop_id = le16_to_cpu(e->nport_handle);
-
-				if (fcport->d_id.b24 == id.b24) {
-					conflict_fcport =
-					    qla2x00_find_fcport_by_wwpn(vha,
-						e->port_name, 0);
-
-					ql_dbg(ql_dbg_disc, vha, 0x20e6,
-					    "%s %d %8phC post del sess\n",
-					    __func__, __LINE__,
-					    conflict_fcport->port_name);
-					qlt_schedule_sess_for_deletion
-						(conflict_fcport, 1);
-				}
-
-				if (fcport->loop_id == loop_id) {
-					/* FW already picked this loop id for another fcport */
-					qla2x00_find_new_loop_id(vha, fcport);
-				}
+		for (i = 0; i < n; i++) {
+			e = &vha->gnl.l[i];
+			id.b.domain = e->port_id[0];
+			id.b.area = e->port_id[1];
+			id.b.al_pa = e->port_id[2];
+			id.b.rsvd_1 = 0;
+			loop_id = le16_to_cpu(e->nport_handle);
+
+			if (fcport->d_id.b24 == id.b24) {
+				conflict_fcport =
+					qla2x00_find_fcport_by_wwpn(vha,
+					    e->port_name, 0);
+				ql_dbg(ql_dbg_disc, vha, 0x20e6,
+				    "%s %d %8phC post del sess\n",
+				    __func__, __LINE__,
+				    conflict_fcport->port_name);
+				qlt_schedule_sess_for_deletion
+					(conflict_fcport);
 			}
+
+			/* FW already picked this loop id for another fcport */
+			if (fcport->loop_id == loop_id)
+				fcport->loop_id = FC_NO_LOOP_ID;
 		}
 		qla24xx_fcport_handle_login(vha, fcport);
 	}
@@ -496,6 +626,7 @@ qla24xx_async_gnl_sp_done(void *s, int res)
 	struct get_name_list_extended *e;
 	u64 wwn;
 	struct list_head h;
+	bool found = false;
 
 	ql_dbg(ql_dbg_disc, vha, 0x20e7,
 	    "Async done-%s res %x mb[1]=%x mb[2]=%x \n",
@@ -539,12 +670,44 @@ qla24xx_async_gnl_sp_done(void *s, int res)
 
 	list_for_each_entry_safe(fcport, tf, &h, gnl_entry) {
 		list_del_init(&fcport->gnl_entry);
-		fcport->flags &= ~FCF_ASYNC_SENT;
+		fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
 		ea.fcport = fcport;
 
 		qla2x00_fcport_event_handler(vha, &ea);
 	}
 
+	/* create new fcport if fw has knowledge of new sessions */
+	for (i = 0; i < n; i++) {
+		port_id_t id;
+		u64 wwnn;
+
+		e = &vha->gnl.l[i];
+		wwn = wwn_to_u64(e->port_name);
+
+		found = false;
+		list_for_each_entry_safe(fcport, tf, &vha->vp_fcports, list) {
+			if (!memcmp((u8 *)&wwn, fcport->port_name,
+			    WWN_SIZE)) {
+				found = true;
+				break;
+			}
+		}
+
+		id.b.domain = e->port_id[2];
+		id.b.area = e->port_id[1];
+		id.b.al_pa = e->port_id[0];
+		id.b.rsvd_1 = 0;
+
+		if (!found && wwn && !IS_SW_RESV_ADDR(id)) {
+			ql_dbg(ql_dbg_disc, vha, 0x2065,
+			    "%s %d %8phC %06x post new sess\n",
+			    __func__, __LINE__, (u8 *)&wwn, id.b24);
+			wwnn = wwn_to_u64(e->node_name);
+			qla24xx_post_newsess_work(vha, &id, (u8 *)&wwn,
+			    (u8 *)&wwnn, NULL, FC4_TYPE_UNKNOWN);
+		}
+	}
+
 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
 
 	sp->free(sp);
@@ -558,14 +721,13 @@ int qla24xx_async_gnl(struct scsi_qla_host *vha, fc_port_t *fcport)
 	unsigned long flags;
 	u16 *mb;
 
-	if (!vha->flags.online)
-		goto done;
+	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
+		return rval;
 
 	ql_dbg(ql_dbg_disc, vha, 0x20d9,
 	    "Async-gnlist WWPN %8phC \n", fcport->port_name);
 
 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
-	fcport->flags |= FCF_ASYNC_SENT;
 	fcport->disc_state = DSC_GNL;
 	fcport->last_rscn_gen = fcport->rscn_gen;
 	fcport->last_login_gen = fcport->login_gen;
@@ -573,8 +735,7 @@ int qla24xx_async_gnl(struct scsi_qla_host *vha, fc_port_t *fcport)
 	list_add_tail(&fcport->gnl_entry, &vha->gnl.fcports);
 	if (vha->gnl.sent) {
 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
-		rval = QLA_SUCCESS;
-		goto done;
+		return QLA_SUCCESS;
 	}
 	vha->gnl.sent = 1;
 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
@@ -582,6 +743,8 @@ int qla24xx_async_gnl(struct scsi_qla_host *vha, fc_port_t *fcport)
 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
 	if (!sp)
 		goto done;
+
+	fcport->flags |= FCF_ASYNC_SENT;
 	sp->type = SRB_MB_IOCB;
 	sp->name = "gnlist";
 	sp->gen1 = fcport->rscn_gen;
@@ -616,8 +779,8 @@ int qla24xx_async_gnl(struct scsi_qla_host *vha, fc_port_t *fcport)
 
 done_free_sp:
 	sp->free(sp);
-done:
 	fcport->flags &= ~FCF_ASYNC_SENT;
+done:
 	return rval;
 }
 
@@ -630,6 +793,7 @@ int qla24xx_post_gnl_work(struct scsi_qla_host *vha, fc_port_t *fcport)
 		return QLA_FUNCTION_FAILED;
 
 	e->u.fcport.fcport = fcport;
+	fcport->flags |= FCF_ASYNC_ACTIVE;
 	return qla2x00_post_work(vha, e);
 }
 
@@ -639,31 +803,18 @@ void qla24xx_async_gpdb_sp_done(void *s, int res)
 	struct srb *sp = s;
 	struct scsi_qla_host *vha = sp->vha;
 	struct qla_hw_data *ha = vha->hw;
-	struct port_database_24xx *pd;
 	fc_port_t *fcport = sp->fcport;
 	u16 *mb = sp->u.iocb_cmd.u.mbx.in_mb;
-	int rval = QLA_SUCCESS;
 	struct event_arg ea;
 
 	ql_dbg(ql_dbg_disc, vha, 0x20db,
 	    "Async done-%s res %x, WWPN %8phC mb[1]=%x mb[2]=%x \n",
 	    sp->name, res, fcport->port_name, mb[1], mb[2]);
 
-	fcport->flags &= ~FCF_ASYNC_SENT;
-
-	if (res) {
-		rval = res;
-		goto gpd_error_out;
-	}
-
-	pd = (struct port_database_24xx *)sp->u.iocb_cmd.u.mbx.in;
-
-	rval = __qla24xx_parse_gpdb(vha, fcport, pd);
+	fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
 
-gpd_error_out:
 	memset(&ea, 0, sizeof(ea));
 	ea.event = FCME_GPDB_DONE;
-	ea.rc = rval;
 	ea.fcport = fcport;
 	ea.sp = sp;
 
@@ -754,7 +905,6 @@ qla24xx_async_prli(struct scsi_qla_host *vha, fc_port_t *fcport)
 
 	rval = qla2x00_start_sp(sp);
 	if (rval != QLA_SUCCESS) {
-		fcport->flags &= ~FCF_ASYNC_SENT;
 		fcport->flags |= FCF_LOGIN_NEEDED;
 		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
 		goto done_free_sp;
@@ -783,6 +933,7 @@ int qla24xx_post_gpdb_work(struct scsi_qla_host *vha, fc_port_t *fcport, u8 opt)
 
 	e->u.fcport.fcport = fcport;
 	e->u.fcport.opt = opt;
+	fcport->flags |= FCF_ASYNC_ACTIVE;
 	return qla2x00_post_work(vha, e);
 }
 
@@ -796,16 +947,16 @@ int qla24xx_async_gpdb(struct scsi_qla_host *vha, fc_port_t *fcport, u8 opt)
 	struct port_database_24xx *pd;
 	struct qla_hw_data *ha = vha->hw;
 
-	if (!vha->flags.online)
-		goto done;
+	if (!vha->flags.online || (fcport->flags & FCF_ASYNC_SENT))
+		return rval;
 
-	fcport->flags |= FCF_ASYNC_SENT;
 	fcport->disc_state = DSC_GPDB;
 
 	sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
 	if (!sp)
 		goto done;
 
+	fcport->flags |= FCF_ASYNC_SENT;
 	sp->type = SRB_MB_IOCB;
 	sp->name = "gpdb";
 	sp->gen1 = fcport->rscn_gen;
@@ -851,47 +1002,17 @@ done_free_sp:
 		dma_pool_free(ha->s_dma_pool, pd, pd_dma);
 
 	sp->free(sp);
-done:
 	fcport->flags &= ~FCF_ASYNC_SENT;
+done:
 	qla24xx_post_gpdb_work(vha, fcport, opt);
 	return rval;
 }
 
 static
-void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
+void __qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
 {
-	int rval = ea->rc;
-	fc_port_t *fcport = ea->fcport;
 	unsigned long flags;
 
-	fcport->flags &= ~FCF_ASYNC_SENT;
-
-	ql_dbg(ql_dbg_disc, vha, 0x20d2,
-	    "%s %8phC DS %d LS %d rval %d\n", __func__, fcport->port_name,
-	    fcport->disc_state, fcport->fw_login_state, rval);
-
-	if (ea->sp->gen2 != fcport->login_gen) {
-		/* target side must have changed it. */
-		ql_dbg(ql_dbg_disc, vha, 0x20d3,
-		    "%s %8phC generation changed rscn %d|%d login %d|%d \n",
-		    __func__, fcport->port_name, fcport->last_rscn_gen,
-		    fcport->rscn_gen, fcport->last_login_gen,
-		    fcport->login_gen);
-		return;
-	} else if (ea->sp->gen1 != fcport->rscn_gen) {
-		ql_dbg(ql_dbg_disc, vha, 0x20d4, "%s %d %8phC post gidpn\n",
-		    __func__, __LINE__, fcport->port_name);
-		qla24xx_post_gidpn_work(vha, fcport);
-		return;
-	}
-
-	if (rval != QLA_SUCCESS) {
-		ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC post del sess\n",
-		    __func__, __LINE__, fcport->port_name);
-		qlt_schedule_sess_for_deletion_lock(fcport);
-		return;
-	}
-
 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
 	ea->fcport->login_gen++;
 	ea->fcport->deleted = 0;
@@ -905,47 +1026,157 @@ void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
 		    !vha->hw->flags.gpsc_supported) {
 			ql_dbg(ql_dbg_disc, vha, 0x20d6,
 			    "%s %d %8phC post upd_fcport fcp_cnt %d\n",
-			    __func__, __LINE__, fcport->port_name,
+			    __func__, __LINE__,  ea->fcport->port_name,
 			    vha->fcport_count);
 
-			qla24xx_post_upd_fcport_work(vha, fcport);
+			qla24xx_post_upd_fcport_work(vha, ea->fcport);
 		} else {
-			ql_dbg(ql_dbg_disc, vha, 0x20d7,
-			    "%s %d %8phC post gpsc fcp_cnt %d\n",
-			    __func__, __LINE__, fcport->port_name,
-			    vha->fcport_count);
-
-			qla24xx_post_gpsc_work(vha, fcport);
+			if (ea->fcport->id_changed) {
+				ea->fcport->id_changed = 0;
+				ql_dbg(ql_dbg_disc, vha, 0x20d7,
+				    "%s %d %8phC post gfpnid fcp_cnt %d\n",
+				    __func__, __LINE__, ea->fcport->port_name,
+				    vha->fcport_count);
+				qla24xx_post_gfpnid_work(vha, ea->fcport);
+			} else {
+				ql_dbg(ql_dbg_disc, vha, 0x20d7,
+				    "%s %d %8phC post gpsc fcp_cnt %d\n",
+				    __func__, __LINE__, ea->fcport->port_name,
+				    vha->fcport_count);
+				qla24xx_post_gpsc_work(vha, ea->fcport);
+			}
 		}
+	} else if (ea->fcport->login_succ) {
+		/*
+		 * We have an existing session. A late RSCN delivery
+		 * must have triggered the session to be re-validate.
+		 * Session is still valid.
+		 */
+		ql_dbg(ql_dbg_disc, vha, 0x20d6,
+		    "%s %d %8phC session revalidate success\n",
+		    __func__, __LINE__, ea->fcport->port_name);
+		ea->fcport->disc_state = DSC_LOGIN_COMPLETE;
 	}
 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
+}
+
+static
+void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
+{
+	fc_port_t *fcport = ea->fcport;
+	struct port_database_24xx *pd;
+	struct srb *sp = ea->sp;
+
+	pd = (struct port_database_24xx *)sp->u.iocb_cmd.u.mbx.in;
+
+	fcport->flags &= ~FCF_ASYNC_SENT;
+
+	ql_dbg(ql_dbg_disc, vha, 0x20d2,
+	    "%s %8phC DS %d LS %d rc %d\n", __func__, fcport->port_name,
+	    fcport->disc_state, pd->current_login_state, ea->rc);
+
+	if (fcport->disc_state == DSC_DELETE_PEND)
+		return;
+
+	switch (pd->current_login_state) {
+	case PDS_PRLI_COMPLETE:
+		__qla24xx_parse_gpdb(vha, fcport, pd);
+		break;
+	case PDS_PLOGI_PENDING:
+	case PDS_PLOGI_COMPLETE:
+	case PDS_PRLI_PENDING:
+	case PDS_PRLI2_PENDING:
+		ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC relogin needed\n",
+		    __func__, __LINE__, fcport->port_name);
+		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
+		return;
+	case PDS_LOGO_PENDING:
+	case PDS_PORT_UNAVAILABLE:
+	default:
+		ql_dbg(ql_dbg_disc, vha, 0x20d5, "%s %d %8phC post del sess\n",
+		    __func__, __LINE__, fcport->port_name);
+		qlt_schedule_sess_for_deletion(fcport);
+		return;
+	}
+	__qla24xx_handle_gpdb_event(vha, ea);
 } /* gpdb event */
 
-int qla24xx_fcport_handle_login(struct scsi_qla_host *vha, fc_port_t *fcport)
+static void qla_chk_n2n_b4_login(struct scsi_qla_host *vha, fc_port_t *fcport)
 {
-	if (fcport->login_retry == 0)
-		return 0;
+	u8 login = 0;
+	int rc;
 
-	if (fcport->scan_state != QLA_FCPORT_FOUND)
-		return 0;
+	if (qla_tgt_mode_enabled(vha))
+		return;
+
+	if (qla_dual_mode_enabled(vha)) {
+		if (N2N_TOPO(vha->hw)) {
+			u64 mywwn, wwn;
+
+			mywwn = wwn_to_u64(vha->port_name);
+			wwn = wwn_to_u64(fcport->port_name);
+			if (mywwn > wwn)
+				login = 1;
+			else if ((fcport->fw_login_state == DSC_LS_PLOGI_COMP)
+			    && time_after_eq(jiffies,
+				    fcport->plogi_nack_done_deadline))
+				login = 1;
+		} else {
+			login = 1;
+		}
+	} else {
+		/* initiator mode */
+		login = 1;
+	}
+
+	if (login) {
+		if (fcport->loop_id == FC_NO_LOOP_ID) {
+			fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
+			rc = qla2x00_find_new_loop_id(vha, fcport);
+			if (rc) {
+				ql_dbg(ql_dbg_disc, vha, 0x20e6,
+				    "%s %d %8phC post del sess - out of loopid\n",
+				    __func__, __LINE__, fcport->port_name);
+				fcport->scan_state = 0;
+				qlt_schedule_sess_for_deletion(fcport);
+				return;
+			}
+		}
+		ql_dbg(ql_dbg_disc, vha, 0x20bf,
+		    "%s %d %8phC post login\n",
+		    __func__, __LINE__, fcport->port_name);
+		qla2x00_post_async_login_work(vha, fcport, NULL);
+	}
+}
+
+int qla24xx_fcport_handle_login(struct scsi_qla_host *vha, fc_port_t *fcport)
+{
+	u16 data[2];
+	u64 wwn;
 
 	ql_dbg(ql_dbg_disc, vha, 0x20d8,
-	    "%s %8phC DS %d LS %d P %d fl %x confl %p rscn %d|%d login %d|%d retry %d lid %d\n",
+	    "%s %8phC DS %d LS %d P %d fl %x confl %p rscn %d|%d login %d retry %d lid %d scan %d\n",
 	    __func__, fcport->port_name, fcport->disc_state,
 	    fcport->fw_login_state, fcport->login_pause, fcport->flags,
 	    fcport->conflict, fcport->last_rscn_gen, fcport->rscn_gen,
-	    fcport->last_login_gen, fcport->login_gen, fcport->login_retry,
-	    fcport->loop_id);
+	    fcport->login_gen, fcport->login_retry,
+	    fcport->loop_id, fcport->scan_state);
 
-	fcport->login_retry--;
+	if (fcport->login_retry == 0)
+		return 0;
+
+	if (fcport->scan_state != QLA_FCPORT_FOUND)
+		return 0;
 
 	if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
 	    (fcport->fw_login_state == DSC_LS_PRLI_PEND))
 		return 0;
 
 	if (fcport->fw_login_state == DSC_LS_PLOGI_COMP) {
-		if (time_before_eq(jiffies, fcport->plogi_nack_done_deadline))
+		if (time_before_eq(jiffies, fcport->plogi_nack_done_deadline)) {
+			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
 			return 0;
+		}
 	}
 
 	/* for pure Target Mode. Login will not be initiated */
@@ -957,19 +1188,23 @@ int qla24xx_fcport_handle_login(struct scsi_qla_host *vha, fc_port_t *fcport)
 		return 0;
 	}
 
+	fcport->login_retry--;
+
 	switch (fcport->disc_state) {
 	case DSC_DELETED:
-		if (fcport->loop_id == FC_NO_LOOP_ID) {
+		wwn = wwn_to_u64(fcport->node_name);
+		if (wwn == 0) {
+			ql_dbg(ql_dbg_disc, vha, 0xffff,
+			    "%s %d %8phC post GNNID\n",
+			    __func__, __LINE__, fcport->port_name);
+			qla24xx_post_gnnid_work(vha, fcport);
+		} else if (fcport->loop_id == FC_NO_LOOP_ID) {
 			ql_dbg(ql_dbg_disc, vha, 0x20bd,
 			    "%s %d %8phC post gnl\n",
 			    __func__, __LINE__, fcport->port_name);
-			qla24xx_async_gnl(vha, fcport);
+			qla24xx_post_gnl_work(vha, fcport);
 		} else {
-			ql_dbg(ql_dbg_disc, vha, 0x20bf,
-			    "%s %d %8phC post login\n",
-			    __func__, __LINE__, fcport->port_name);
-			fcport->disc_state = DSC_LOGIN_PEND;
-			qla2x00_post_async_login_work(vha, fcport, NULL);
+			qla_chk_n2n_b4_login(vha, fcport);
 		}
 		break;
 
@@ -981,40 +1216,26 @@ int qla24xx_fcport_handle_login(struct scsi_qla_host *vha, fc_port_t *fcport)
 			break;
 		}
 
-		if (fcport->flags & FCF_FCP2_DEVICE) {
-			u8 opt = PDO_FORCE_ADISC;
-
-			ql_dbg(ql_dbg_disc, vha, 0x20c9,
-			    "%s %d %8phC post gpdb\n",
-			    __func__, __LINE__, fcport->port_name);
-
-			fcport->disc_state = DSC_GPDB;
-			qla24xx_post_gpdb_work(vha, fcport, opt);
-		} else {
-			ql_dbg(ql_dbg_disc, vha, 0x20cf,
-			    "%s %d %8phC post login\n",
-			    __func__, __LINE__, fcport->port_name);
-			fcport->disc_state = DSC_LOGIN_PEND;
-			qla2x00_post_async_login_work(vha, fcport, NULL);
-		}
-
+		qla_chk_n2n_b4_login(vha, fcport);
 		break;
 
 	case DSC_LOGIN_FAILED:
 		ql_dbg(ql_dbg_disc, vha, 0x20d0,
 		    "%s %d %8phC post gidpn\n",
 		    __func__, __LINE__, fcport->port_name);
-
-		qla24xx_post_gidpn_work(vha, fcport);
+		if (N2N_TOPO(vha->hw))
+			qla_chk_n2n_b4_login(vha, fcport);
+		else
+			qla24xx_post_gidpn_work(vha, fcport);
 		break;
 
 	case DSC_LOGIN_COMPLETE:
 		/* recheck login state */
 		ql_dbg(ql_dbg_disc, vha, 0x20d1,
-		    "%s %d %8phC post gpdb\n",
+		    "%s %d %8phC post adisc\n",
 		    __func__, __LINE__, fcport->port_name);
-
-		qla24xx_post_gpdb_work(vha, fcport, PDO_FORCE_ADISC);
+		data[0] = data[1] = 0;
+		qla2x00_post_async_adisc_work(vha, fcport, data);
 		break;
 
 	default:
@@ -1040,16 +1261,15 @@ void qla24xx_handle_rscn_event(fc_port_t *fcport, struct event_arg *ea)
 	switch (fcport->disc_state) {
 	case DSC_DELETED:
 	case DSC_LOGIN_COMPLETE:
-		qla24xx_post_gidpn_work(fcport->vha, fcport);
+		qla24xx_post_gpnid_work(fcport->vha, &ea->id);
 		break;
-
 	default:
 		break;
 	}
 }
 
 int qla24xx_post_newsess_work(struct scsi_qla_host *vha, port_id_t *id,
-	u8 *port_name, void *pla)
+    u8 *port_name, u8 *node_name, void *pla, u8 fc4_type)
 {
 	struct qla_work_evt *e;
 	e = qla2x00_alloc_work(vha, QLA_EVT_NEW_SESS);
@@ -1058,47 +1278,20 @@ int qla24xx_post_newsess_work(struct scsi_qla_host *vha, port_id_t *id,
 
 	e->u.new_sess.id = *id;
 	e->u.new_sess.pla = pla;
+	e->u.new_sess.fc4_type = fc4_type;
 	memcpy(e->u.new_sess.port_name, port_name, WWN_SIZE);
+	if (node_name)
+		memcpy(e->u.new_sess.node_name, node_name, WWN_SIZE);
 
 	return qla2x00_post_work(vha, e);
 }
 
 static
-int qla24xx_handle_delete_done_event(scsi_qla_host_t *vha,
-	struct event_arg *ea)
-{
-	fc_port_t *fcport = ea->fcport;
-
-	if (test_bit(UNLOADING, &vha->dpc_flags))
-		return 0;
-
-	switch (vha->host->active_mode) {
-	case MODE_INITIATOR:
-	case MODE_DUAL:
-		if (fcport->scan_state == QLA_FCPORT_FOUND)
-			qla24xx_fcport_handle_login(vha, fcport);
-		break;
-
-	case MODE_TARGET:
-	default:
-		/* no-op */
-		break;
-	}
-
-	return 0;
-}
-
-static
 void qla24xx_handle_relogin_event(scsi_qla_host_t *vha,
 	struct event_arg *ea)
 {
 	fc_port_t *fcport = ea->fcport;
 
-	if (fcport->scan_state != QLA_FCPORT_FOUND) {
-		fcport->login_retry++;
-		return;
-	}
-
 	ql_dbg(ql_dbg_disc, vha, 0x2102,
 	    "%s %8phC DS %d LS %d P %d del %d cnfl %p rscn %d|%d login %d|%d fl %x\n",
 	    __func__, fcport->port_name, fcport->disc_state,
@@ -1113,8 +1306,10 @@ void qla24xx_handle_relogin_event(scsi_qla_host_t *vha,
 		return;
 
 	if (fcport->fw_login_state == DSC_LS_PLOGI_COMP) {
-		if (time_before_eq(jiffies, fcport->plogi_nack_done_deadline))
+		if (time_before_eq(jiffies, fcport->plogi_nack_done_deadline)) {
+			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
 			return;
+		}
 	}
 
 	if (fcport->flags & FCF_ASYNC_SENT) {
@@ -1132,7 +1327,7 @@ void qla24xx_handle_relogin_event(scsi_qla_host_t *vha,
 		ql_dbg(ql_dbg_disc, vha, 0x20e9, "%s %d %8phC post gidpn\n",
 		    __func__, __LINE__, fcport->port_name);
 
-		qla24xx_async_gidpn(vha, fcport);
+		qla24xx_post_gidpn_work(vha, fcport);
 		return;
 	}
 
@@ -1141,16 +1336,16 @@ void qla24xx_handle_relogin_event(scsi_qla_host_t *vha,
 
 void qla2x00_fcport_event_handler(scsi_qla_host_t *vha, struct event_arg *ea)
 {
-	fc_port_t *fcport, *f, *tf;
+	fc_port_t *f, *tf;
 	uint32_t id = 0, mask, rid;
-	int rc;
+	unsigned long flags;
 
 	switch (ea->event) {
-	case FCME_RELOGIN:
 	case FCME_RSCN:
 	case FCME_GIDPN_DONE:
 	case FCME_GPSC_DONE:
 	case FCME_GPNID_DONE:
+	case FCME_GNNID_DONE:
 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
 		    test_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))
 			return;
@@ -1171,20 +1366,15 @@ void qla2x00_fcport_event_handler(scsi_qla_host_t *vha, struct event_arg *ea)
 			return;
 		switch (ea->id.b.rsvd_1) {
 		case RSCN_PORT_ADDR:
-			fcport = qla2x00_find_fcport_by_nportid(vha, &ea->id, 1);
-			if (!fcport) {
-				/* cable moved */
-				rc = qla24xx_post_gpnid_work(vha, &ea->id);
-				if (rc) {
-					ql_log(ql_log_warn, vha, 0xd044,
-					    "RSCN GPNID work failed %02x%02x%02x\n",
-					    ea->id.b.domain, ea->id.b.area,
-					    ea->id.b.al_pa);
-				}
-			} else {
-				ea->fcport = fcport;
-				qla24xx_handle_rscn_event(fcport, ea);
+			spin_lock_irqsave(&vha->work_lock, flags);
+			if (vha->scan.scan_flags == 0) {
+				ql_dbg(ql_dbg_disc, vha, 0xffff,
+				    "%s: schedule\n", __func__);
+				vha->scan.scan_flags |= SF_QUEUED;
+				schedule_delayed_work(&vha->scan.scan_work, 5);
 			}
+			spin_unlock_irqrestore(&vha->work_lock, flags);
+
 			break;
 		case RSCN_AREA_ADDR:
 		case RSCN_DOM_ADDR:
@@ -1227,7 +1417,7 @@ void qla2x00_fcport_event_handler(scsi_qla_host_t *vha, struct event_arg *ea)
 		qla24xx_handle_gnl_done_event(vha, ea);
 		break;
 	case FCME_GPSC_DONE:
-		qla24xx_post_upd_fcport_work(vha, ea->fcport);
+		qla24xx_handle_gpsc_event(vha, ea);
 		break;
 	case FCME_PLOGI_DONE:	/* Initiator side sent LLIOCB */
 		qla24xx_handle_plogi_done_event(vha, ea);
@@ -1244,8 +1434,14 @@ void qla2x00_fcport_event_handler(scsi_qla_host_t *vha, struct event_arg *ea)
 	case FCME_GFFID_DONE:
 		qla24xx_handle_gffid_event(vha, ea);
 		break;
-	case FCME_DELETE_DONE:
-		qla24xx_handle_delete_done_event(vha, ea);
+	case FCME_ADISC_DONE:
+		qla24xx_handle_adisc_event(vha, ea);
+		break;
+	case FCME_GNNID_DONE:
+		qla24xx_handle_gnnid_event(vha, ea);
+		break;
+	case FCME_GFPNID_DONE:
+		qla24xx_handle_gfpnid_event(vha, ea);
 		break;
 	default:
 		BUG_ON(1);
@@ -1327,6 +1523,7 @@ qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint32_t lun,
 
 done_free_sp:
 	sp->free(sp);
+	sp->fcport->flags &= ~FCF_ASYNC_SENT;
 done:
 	return rval;
 }
@@ -1368,6 +1565,13 @@ qla24xx_async_abort_cmd(srb_t *cmd_sp)
 	sp->name = "abort";
 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha));
 	abt_iocb->u.abt.cmd_hndl = cmd_sp->handle;
+
+	if (vha->flags.qpairs_available && cmd_sp->qpair)
+		abt_iocb->u.abt.req_que_no =
+		    cpu_to_le16(cmd_sp->qpair->req->id);
+	else
+		abt_iocb->u.abt.req_que_no = cpu_to_le16(vha->req->id);
+
 	sp->done = qla24xx_abort_sp_done;
 	abt_iocb->timeout = qla24xx_abort_iocb_timeout;
 	init_completion(&abt_iocb->u.abt.comp);
@@ -1402,6 +1606,9 @@ qla24xx_async_abort_command(srb_t *sp)
 	struct qla_hw_data *ha = vha->hw;
 	struct req_que *req = vha->req;
 
+	if (vha->flags.qpairs_available && sp->qpair)
+		req = sp->qpair->req;
+
 	spin_lock_irqsave(&ha->hardware_lock, flags);
 	for (handle = 1; handle < req->num_outstanding_cmds; handle++) {
 		if (req->outstanding_cmds[handle] == sp)
@@ -1452,6 +1659,42 @@ static void
 qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
 {
 	port_id_t cid;	/* conflict Nport id */
+	u16 lid;
+	struct fc_port *conflict_fcport;
+	unsigned long flags;
+	struct fc_port *fcport = ea->fcport;
+
+	ql_dbg(ql_dbg_disc, vha, 0xffff,
+	    "%s %8phC DS %d LS %d rc %d login %d|%d rscn %d|%d data %x|%x iop %x|%x\n",
+	    __func__, fcport->port_name, fcport->disc_state,
+	    fcport->fw_login_state, ea->rc, ea->sp->gen2, fcport->login_gen,
+	    ea->sp->gen2, fcport->rscn_gen|ea->sp->gen1,
+	    ea->data[0], ea->data[1], ea->iop[0], ea->iop[1]);
+
+	if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) ||
+	    (fcport->fw_login_state == DSC_LS_PRLI_PEND)) {
+		ql_dbg(ql_dbg_disc, vha, 0x20ea,
+		    "%s %d %8phC Remote is trying to login\n",
+		    __func__, __LINE__, fcport->port_name);
+		return;
+	}
+
+	if (fcport->disc_state == DSC_DELETE_PEND)
+		return;
+
+	if (ea->sp->gen2 != fcport->login_gen) {
+		/* target side must have changed it. */
+		ql_dbg(ql_dbg_disc, vha, 0x20d3,
+		    "%s %8phC generation changed\n",
+		    __func__, fcport->port_name);
+		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
+		return;
+	} else if (ea->sp->gen1 != fcport->rscn_gen) {
+		ql_dbg(ql_dbg_disc, vha, 0x20d4, "%s %d %8phC post gidpn\n",
+		    __func__, __LINE__, fcport->port_name);
+		qla24xx_post_gidpn_work(vha, fcport);
+		return;
+	}
 
 	switch (ea->data[0]) {
 	case MBS_COMMAND_COMPLETE:
@@ -1467,11 +1710,19 @@ qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
 			qla24xx_post_prli_work(vha, ea->fcport);
 		} else {
 			ql_dbg(ql_dbg_disc, vha, 0x20ea,
-				"%s %d %8phC post gpdb\n",
-				__func__, __LINE__, ea->fcport->port_name);
+			    "%s %d %8phC LoopID 0x%x in use with %06x. post gnl\n",
+			    __func__, __LINE__, ea->fcport->port_name,
+			    ea->fcport->loop_id, ea->fcport->d_id.b24);
+
+			set_bit(ea->fcport->loop_id, vha->hw->loop_id_map);
+			spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
+			ea->fcport->loop_id = FC_NO_LOOP_ID;
 			ea->fcport->chip_reset = vha->hw->base_qpair->chip_reset;
 			ea->fcport->logout_on_delete = 1;
 			ea->fcport->send_els_logo = 0;
+			ea->fcport->fw_login_state = DSC_LS_PRLI_COMP;
+			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
+
 			qla24xx_post_gpdb_work(vha, ea->fcport, 0);
 		}
 		break;
@@ -1513,8 +1764,38 @@ qla24xx_handle_plogi_done_event(struct scsi_qla_host *vha, struct event_arg *ea)
 		    ea->fcport->d_id.b.domain, ea->fcport->d_id.b.area,
 		    ea->fcport->d_id.b.al_pa);
 
-		qla2x00_clear_loop_id(ea->fcport);
-		qla24xx_post_gidpn_work(vha, ea->fcport);
+		lid = ea->iop[1] & 0xffff;
+		qlt_find_sess_invalidate_other(vha,
+		    wwn_to_u64(ea->fcport->port_name),
+		    ea->fcport->d_id, lid, &conflict_fcport);
+
+		if (conflict_fcport) {
+			/*
+			 * Another fcport share the same loop_id/nport id.
+			 * Conflict fcport needs to finish cleanup before this
+			 * fcport can proceed to login.
+			 */
+			conflict_fcport->conflict = ea->fcport;
+			ea->fcport->login_pause = 1;
+
+			ql_dbg(ql_dbg_disc, vha, 0x20ed,
+			    "%s %d %8phC NPortId %06x inuse with loopid 0x%x. post gidpn\n",
+			    __func__, __LINE__, ea->fcport->port_name,
+			    ea->fcport->d_id.b24, lid);
+			qla2x00_clear_loop_id(ea->fcport);
+			qla24xx_post_gidpn_work(vha, ea->fcport);
+		} else {
+			ql_dbg(ql_dbg_disc, vha, 0x20ed,
+			    "%s %d %8phC NPortId %06x inuse with loopid 0x%x. sched delete\n",
+			    __func__, __LINE__, ea->fcport->port_name,
+			    ea->fcport->d_id.b24, lid);
+
+			qla2x00_clear_loop_id(ea->fcport);
+			set_bit(lid, vha->hw->loop_id_map);
+			ea->fcport->loop_id = lid;
+			ea->fcport->keep_nport_handle = 0;
+			qlt_schedule_sess_for_deletion(ea->fcport);
+		}
 		break;
 	}
 	return;
@@ -2540,70 +2821,27 @@ qla24xx_chip_diag(scsi_qla_host_t *vha)
 	return rval;
 }
 
-void
-qla2x00_alloc_fw_dump(scsi_qla_host_t *vha)
+static void
+qla2x00_alloc_offload_mem(scsi_qla_host_t *vha)
 {
 	int rval;
-	uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
-	    eft_size, fce_size, mq_size;
 	dma_addr_t tc_dma;
 	void *tc;
 	struct qla_hw_data *ha = vha->hw;
-	struct req_que *req = ha->req_q_map[0];
-	struct rsp_que *rsp = ha->rsp_q_map[0];
 
-	if (ha->fw_dump) {
+	if (ha->eft) {
 		ql_dbg(ql_dbg_init, vha, 0x00bd,
-		    "Firmware dump already allocated.\n");
+		    "%s: Offload Mem is already allocated.\n",
+		    __func__);
 		return;
 	}
 
-	ha->fw_dumped = 0;
-	ha->fw_dump_cap_flags = 0;
-	dump_size = fixed_size = mem_size = eft_size = fce_size = mq_size = 0;
-	req_q_size = rsp_q_size = 0;
-
-	if (IS_QLA27XX(ha))
-		goto try_fce;
-
-	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
-		fixed_size = sizeof(struct qla2100_fw_dump);
-	} else if (IS_QLA23XX(ha)) {
-		fixed_size = offsetof(struct qla2300_fw_dump, data_ram);
-		mem_size = (ha->fw_memory_size - 0x11000 + 1) *
-		    sizeof(uint16_t);
-	} else if (IS_FWI2_CAPABLE(ha)) {
-		if (IS_QLA83XX(ha) || IS_QLA27XX(ha))
-			fixed_size = offsetof(struct qla83xx_fw_dump, ext_mem);
-		else if (IS_QLA81XX(ha))
-			fixed_size = offsetof(struct qla81xx_fw_dump, ext_mem);
-		else if (IS_QLA25XX(ha))
-			fixed_size = offsetof(struct qla25xx_fw_dump, ext_mem);
-		else
-			fixed_size = offsetof(struct qla24xx_fw_dump, ext_mem);
-
-		mem_size = (ha->fw_memory_size - 0x100000 + 1) *
-		    sizeof(uint32_t);
-		if (ha->mqenable) {
-			if (!IS_QLA83XX(ha) && !IS_QLA27XX(ha))
-				mq_size = sizeof(struct qla2xxx_mq_chain);
-			/*
-			 * Allocate maximum buffer size for all queues.
-			 * Resizing must be done at end-of-dump processing.
-			 */
-			mq_size += ha->max_req_queues *
-			    (req->length * sizeof(request_t));
-			mq_size += ha->max_rsp_queues *
-			    (rsp->length * sizeof(response_t));
-		}
-		if (ha->tgt.atio_ring)
-			mq_size += ha->tgt.atio_q_length * sizeof(request_t);
+	if (IS_FWI2_CAPABLE(ha)) {
 		/* Allocate memory for Fibre Channel Event Buffer. */
 		if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
 		    !IS_QLA27XX(ha))
 			goto try_eft;
 
-try_fce:
 		if (ha->fce)
 			dma_free_coherent(&ha->pdev->dev,
 			    FCE_SIZE, ha->fce, ha->fce_dma);
@@ -2631,7 +2869,6 @@ try_fce:
 		ql_dbg(ql_dbg_init, vha, 0x00c0,
 		    "Allocate (%d KB) for FCE...\n", FCE_SIZE / 1024);
 
-		fce_size = sizeof(struct qla2xxx_fce_chain) + FCE_SIZE;
 		ha->flags.fce_enabled = 1;
 		ha->fce_dma = tc_dma;
 		ha->fce = tc;
@@ -2648,7 +2885,7 @@ try_eft:
 			ql_log(ql_log_warn, vha, 0x00c1,
 			    "Unable to allocate (%d KB) for EFT.\n",
 			    EFT_SIZE / 1024);
-			goto cont_alloc;
+			goto eft_err;
 		}
 
 		rval = qla2x00_enable_eft_trace(vha, tc_dma, EFT_NUM_BUFFERS);
@@ -2657,17 +2894,76 @@ try_eft:
 			    "Unable to initialize EFT (%d).\n", rval);
 			dma_free_coherent(&ha->pdev->dev, EFT_SIZE, tc,
 			    tc_dma);
-			goto cont_alloc;
+			goto eft_err;
 		}
 		ql_dbg(ql_dbg_init, vha, 0x00c3,
 		    "Allocated (%d KB) EFT ...\n", EFT_SIZE / 1024);
 
-		eft_size = EFT_SIZE;
 		ha->eft_dma = tc_dma;
 		ha->eft = tc;
 	}
 
-cont_alloc:
+eft_err:
+	return;
+}
+
+void
+qla2x00_alloc_fw_dump(scsi_qla_host_t *vha)
+{
+	uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
+	    eft_size, fce_size, mq_size;
+	struct qla_hw_data *ha = vha->hw;
+	struct req_que *req = ha->req_q_map[0];
+	struct rsp_que *rsp = ha->rsp_q_map[0];
+	struct qla2xxx_fw_dump *fw_dump;
+
+	dump_size = fixed_size = mem_size = eft_size = fce_size = mq_size = 0;
+	req_q_size = rsp_q_size = 0;
+
+	if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
+		fixed_size = sizeof(struct qla2100_fw_dump);
+	} else if (IS_QLA23XX(ha)) {
+		fixed_size = offsetof(struct qla2300_fw_dump, data_ram);
+		mem_size = (ha->fw_memory_size - 0x11000 + 1) *
+		    sizeof(uint16_t);
+	} else if (IS_FWI2_CAPABLE(ha)) {
+		if (IS_QLA83XX(ha) || IS_QLA27XX(ha))
+			fixed_size = offsetof(struct qla83xx_fw_dump, ext_mem);
+		else if (IS_QLA81XX(ha))
+			fixed_size = offsetof(struct qla81xx_fw_dump, ext_mem);
+		else if (IS_QLA25XX(ha))
+			fixed_size = offsetof(struct qla25xx_fw_dump, ext_mem);
+		else
+			fixed_size = offsetof(struct qla24xx_fw_dump, ext_mem);
+
+		mem_size = (ha->fw_memory_size - 0x100000 + 1) *
+		    sizeof(uint32_t);
+		if (ha->mqenable) {
+			if (!IS_QLA83XX(ha) && !IS_QLA27XX(ha))
+				mq_size = sizeof(struct qla2xxx_mq_chain);
+			/*
+			 * Allocate maximum buffer size for all queues.
+			 * Resizing must be done at end-of-dump processing.
+			 */
+			mq_size += ha->max_req_queues *
+			    (req->length * sizeof(request_t));
+			mq_size += ha->max_rsp_queues *
+			    (rsp->length * sizeof(response_t));
+		}
+		if (ha->tgt.atio_ring)
+			mq_size += ha->tgt.atio_q_length * sizeof(request_t);
+		/* Allocate memory for Fibre Channel Event Buffer. */
+		if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
+		    !IS_QLA27XX(ha))
+			goto try_eft;
+
+		fce_size = sizeof(struct qla2xxx_fce_chain) + FCE_SIZE;
+try_eft:
+		ql_dbg(ql_dbg_init, vha, 0x00c3,
+		    "Allocated (%d KB) EFT ...\n", EFT_SIZE / 1024);
+		eft_size = EFT_SIZE;
+	}
+
 	if (IS_QLA27XX(ha)) {
 		if (!ha->fw_dump_template) {
 			ql_log(ql_log_warn, vha, 0x00ba,
@@ -2695,51 +2991,44 @@ cont_alloc:
 			ha->exlogin_size;
 
 allocate:
-	ha->fw_dump = vmalloc(dump_size);
-	if (!ha->fw_dump) {
-		ql_log(ql_log_warn, vha, 0x00c4,
-		    "Unable to allocate (%d KB) for firmware dump.\n",
-		    dump_size / 1024);
-
-		if (ha->fce) {
-			dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
-			    ha->fce_dma);
-			ha->fce = NULL;
-			ha->fce_dma = 0;
-		}
-
-		if (ha->eft) {
-			dma_free_coherent(&ha->pdev->dev, eft_size, ha->eft,
-			    ha->eft_dma);
-			ha->eft = NULL;
-			ha->eft_dma = 0;
+	if (!ha->fw_dump_len || dump_size != ha->fw_dump_len) {
+		fw_dump = vmalloc(dump_size);
+		if (!fw_dump) {
+			ql_log(ql_log_warn, vha, 0x00c4,
+			    "Unable to allocate (%d KB) for firmware dump.\n",
+			    dump_size / 1024);
+		} else {
+			if (ha->fw_dump)
+				vfree(ha->fw_dump);
+			ha->fw_dump = fw_dump;
+
+			ha->fw_dump_len = dump_size;
+			ql_dbg(ql_dbg_init, vha, 0x00c5,
+			    "Allocated (%d KB) for firmware dump.\n",
+			    dump_size / 1024);
+
+			if (IS_QLA27XX(ha))
+				return;
+
+			ha->fw_dump->signature[0] = 'Q';
+			ha->fw_dump->signature[1] = 'L';
+			ha->fw_dump->signature[2] = 'G';
+			ha->fw_dump->signature[3] = 'C';
+			ha->fw_dump->version = htonl(1);
+
+			ha->fw_dump->fixed_size = htonl(fixed_size);
+			ha->fw_dump->mem_size = htonl(mem_size);
+			ha->fw_dump->req_q_size = htonl(req_q_size);
+			ha->fw_dump->rsp_q_size = htonl(rsp_q_size);
+
+			ha->fw_dump->eft_size = htonl(eft_size);
+			ha->fw_dump->eft_addr_l = htonl(LSD(ha->eft_dma));
+			ha->fw_dump->eft_addr_h = htonl(MSD(ha->eft_dma));
+
+			ha->fw_dump->header_size =
+				htonl(offsetof(struct qla2xxx_fw_dump, isp));
 		}
-		return;
 	}
-	ha->fw_dump_len = dump_size;
-	ql_dbg(ql_dbg_init, vha, 0x00c5,
-	    "Allocated (%d KB) for firmware dump.\n", dump_size / 1024);
-
-	if (IS_QLA27XX(ha))
-		return;
-
-	ha->fw_dump->signature[0] = 'Q';
-	ha->fw_dump->signature[1] = 'L';
-	ha->fw_dump->signature[2] = 'G';
-	ha->fw_dump->signature[3] = 'C';
-	ha->fw_dump->version = htonl(1);
-
-	ha->fw_dump->fixed_size = htonl(fixed_size);
-	ha->fw_dump->mem_size = htonl(mem_size);
-	ha->fw_dump->req_q_size = htonl(req_q_size);
-	ha->fw_dump->rsp_q_size = htonl(rsp_q_size);
-
-	ha->fw_dump->eft_size = htonl(eft_size);
-	ha->fw_dump->eft_addr_l = htonl(LSD(ha->eft_dma));
-	ha->fw_dump->eft_addr_h = htonl(MSD(ha->eft_dma));
-
-	ha->fw_dump->header_size =
-	    htonl(offsetof(struct qla2xxx_fw_dump, isp));
 }
 
 static int
@@ -3065,9 +3354,12 @@ enable_82xx_npiv:
 				if (rval != QLA_SUCCESS)
 					goto failed;
 
-				if (!fw_major_version && ql2xallocfwdump
-				    && !(IS_P3P_TYPE(ha)))
+				if (!fw_major_version && !(IS_P3P_TYPE(ha)))
+					qla2x00_alloc_offload_mem(vha);
+
+				if (ql2xallocfwdump && !(IS_P3P_TYPE(ha)))
 					qla2x00_alloc_fw_dump(vha);
+
 			} else {
 				goto failed;
 			}
@@ -3278,6 +3570,12 @@ qla24xx_update_fw_options(scsi_qla_host_t *vha)
 			ha->fw_options[2] |= BIT_4;
 		else
 			ha->fw_options[2] &= ~BIT_4;
+
+		/* Reserve 1/2 of emergency exchanges for ELS.*/
+		if (qla2xuseresexchforels)
+			ha->fw_options[2] |= BIT_8;
+		else
+			ha->fw_options[2] &= ~BIT_8;
 	}
 
 	ql_dbg(ql_dbg_init, vha, 0x00e8,
@@ -3671,6 +3969,7 @@ qla2x00_configure_hba(scsi_qla_host_t *vha)
 	struct qla_hw_data *ha = vha->hw;
 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 	port_id_t id;
+	unsigned long flags;
 
 	/* Get host addresses. */
 	rval = qla2x00_get_adapter_id(vha,
@@ -3752,7 +4051,9 @@ qla2x00_configure_hba(scsi_qla_host_t *vha)
 	id.b.area = area;
 	id.b.al_pa = al_pa;
 	id.b.rsvd_1 = 0;
+	spin_lock_irqsave(&ha->hardware_lock, flags);
 	qlt_update_host_map(vha, id);
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 
 	if (!vha->flags.init_done)
 		ql_log(ql_log_info, vha, 0x2010,
@@ -4293,6 +4594,21 @@ qla2x00_configure_loop(scsi_qla_host_t *vha)
 
 	} else if (ha->current_topology == ISP_CFG_N) {
 		clear_bit(RSCN_UPDATE, &flags);
+		if (ha->flags.rida_fmt2) {
+			/* With Rida Format 2, the login is already triggered.
+			 * We know who is on the other side of the wire.
+			 * No need to login to do login to find out or drop into
+			 * qla2x00_configure_local_loop().
+			 */
+			clear_bit(LOCAL_LOOP_UPDATE, &flags);
+			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
+		} else {
+			if (qla_tgt_mode_enabled(vha)) {
+				/* allow the other side to start the login */
+				clear_bit(LOCAL_LOOP_UPDATE, &flags);
+				set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
+			}
+		}
 	} else if (ha->current_topology == ISP_CFG_NL) {
 		clear_bit(RSCN_UPDATE, &flags);
 		set_bit(LOCAL_LOOP_UPDATE, &flags);
@@ -4521,6 +4837,10 @@ qla2x00_configure_local_loop(scsi_qla_host_t *vha)
 	    (uint8_t *)ha->gid_list,
 	    entries * sizeof(struct gid_list_info));
 
+	list_for_each_entry(fcport, &vha->vp_fcports, list) {
+		fcport->scan_state = QLA_FCPORT_SCAN;
+	}
+
 	/* Allocate temporary fcport for any new fcports discovered. */
 	new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
 	if (new_fcport == NULL) {
@@ -4531,22 +4851,6 @@ qla2x00_configure_local_loop(scsi_qla_host_t *vha)
 	}
 	new_fcport->flags &= ~FCF_FABRIC_DEVICE;
 
-	/*
-	 * Mark local devices that were present with FCF_DEVICE_LOST for now.
-	 */
-	list_for_each_entry(fcport, &vha->vp_fcports, list) {
-		if (atomic_read(&fcport->state) == FCS_ONLINE &&
-		    fcport->port_type != FCT_BROADCAST &&
-		    (fcport->flags & FCF_FABRIC_DEVICE) == 0) {
-
-			ql_dbg(ql_dbg_disc, vha, 0x2096,
-			    "Marking port lost loop_id=0x%04x.\n",
-			    fcport->loop_id);
-
-			qla2x00_mark_device_lost(vha, fcport, 0, 0);
-		}
-	}
-
 	/* Inititae N2N login. */
 	if (test_and_clear_bit(N2N_LOGIN_NEEDED, &vha->dpc_flags)) {
 		rval = qla24xx_n2n_handle_login(vha, new_fcport);
@@ -4589,6 +4893,7 @@ qla2x00_configure_local_loop(scsi_qla_host_t *vha)
 		new_fcport->d_id.b.area = area;
 		new_fcport->d_id.b.al_pa = al_pa;
 		new_fcport->loop_id = loop_id;
+		new_fcport->scan_state = QLA_FCPORT_FOUND;
 
 		rval2 = qla2x00_get_port_database(vha, new_fcport, 0);
 		if (rval2 != QLA_SUCCESS) {
@@ -4620,13 +4925,7 @@ qla2x00_configure_local_loop(scsi_qla_host_t *vha)
 			fcport->d_id.b24 = new_fcport->d_id.b24;
 			memcpy(fcport->node_name, new_fcport->node_name,
 			    WWN_SIZE);
-
-			if (!fcport->login_succ) {
-				vha->fcport_count++;
-				fcport->login_succ = 1;
-				fcport->disc_state = DSC_LOGIN_COMPLETE;
-			}
-
+			fcport->scan_state = QLA_FCPORT_FOUND;
 			found++;
 			break;
 		}
@@ -4637,11 +4936,6 @@ qla2x00_configure_local_loop(scsi_qla_host_t *vha)
 
 			/* Allocate a new replacement fcport. */
 			fcport = new_fcport;
-			if (!fcport->login_succ) {
-				vha->fcport_count++;
-				fcport->login_succ = 1;
-				fcport->disc_state = DSC_LOGIN_COMPLETE;
-			}
 
 			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
 
@@ -4662,11 +4956,38 @@ qla2x00_configure_local_loop(scsi_qla_host_t *vha)
 		/* Base iIDMA settings on HBA port speed. */
 		fcport->fp_speed = ha->link_data_rate;
 
-		qla2x00_update_fcport(vha, fcport);
-
 		found_devs++;
 	}
 
+	list_for_each_entry(fcport, &vha->vp_fcports, list) {
+		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
+			break;
+
+		if (fcport->scan_state == QLA_FCPORT_SCAN) {
+			if ((qla_dual_mode_enabled(vha) ||
+			    qla_ini_mode_enabled(vha)) &&
+			    atomic_read(&fcport->state) == FCS_ONLINE) {
+				qla2x00_mark_device_lost(vha, fcport,
+					ql2xplogiabsentdevice, 0);
+				if (fcport->loop_id != FC_NO_LOOP_ID &&
+				    (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
+				    fcport->port_type != FCT_INITIATOR &&
+				    fcport->port_type != FCT_BROADCAST) {
+					ql_dbg(ql_dbg_disc, vha, 0x20f0,
+					    "%s %d %8phC post del sess\n",
+					    __func__, __LINE__,
+					    fcport->port_name);
+
+					qlt_schedule_sess_for_deletion(fcport);
+					continue;
+				}
+			}
+		}
+
+		if (fcport->scan_state == QLA_FCPORT_FOUND)
+			qla24xx_fcport_handle_login(vha, fcport);
+	}
+
 cleanup_allocation:
 	kfree(new_fcport);
 
@@ -4920,9 +5241,6 @@ qla2x00_configure_fabric(scsi_qla_host_t *vha)
 			}
 		}
 
-		list_for_each_entry(fcport, &vha->vp_fcports, list) {
-			fcport->scan_state = QLA_FCPORT_SCAN;
-		}
 
 		/* Mark the time right before querying FW for connected ports.
 		 * This process is long, asynchronous and by the time it's done,
@@ -4932,7 +5250,17 @@ qla2x00_configure_fabric(scsi_qla_host_t *vha)
 		 * will be newer than discovery_gen. */
 		qlt_do_generation_tick(vha, &discovery_gen);
 
-		rval = qla2x00_find_all_fabric_devs(vha);
+		if (USE_ASYNC_SCAN(ha)) {
+			rval = QLA_SUCCESS;
+			rval = qla24xx_async_gpnft(vha, FC4_TYPE_FCP_SCSI);
+			if (rval)
+				set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
+		} else  {
+			list_for_each_entry(fcport, &vha->vp_fcports, list)
+				fcport->scan_state = QLA_FCPORT_SCAN;
+
+			rval = qla2x00_find_all_fabric_devs(vha);
+		}
 		if (rval != QLA_SUCCESS)
 			break;
 	} while (0);
@@ -5237,9 +5565,7 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha)
 					    "%s %d %8phC post del sess\n",
 					    __func__, __LINE__,
 					    fcport->port_name);
-
-					qlt_schedule_sess_for_deletion_lock
-						(fcport);
+					qlt_schedule_sess_for_deletion(fcport);
 					continue;
 				}
 			}
@@ -5974,6 +6300,8 @@ qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
 	if (!(IS_P3P_TYPE(ha)))
 		ha->isp_ops->reset_chip(vha);
 
+	SAVE_TOPO(ha);
+	ha->flags.rida_fmt2 = 0;
 	ha->flags.n2n_ae = 0;
 	ha->flags.lip_ae = 0;
 	ha->current_topology = 0;
@@ -8173,9 +8501,6 @@ int qla2xxx_delete_qpair(struct scsi_qla_host *vha, struct qla_qpair *qpair)
 	int ret = QLA_FUNCTION_FAILED;
 	struct qla_hw_data *ha = qpair->hw;
 
-	if (!vha->flags.qpairs_req_created && !vha->flags.qpairs_rsp_created)
-		goto fail;
-
 	qpair->delete_in_progress = 1;
 	while (atomic_read(&qpair->ref_count))
 		msleep(500);
@@ -8183,6 +8508,7 @@ int qla2xxx_delete_qpair(struct scsi_qla_host *vha, struct qla_qpair *qpair)
 	ret = qla25xx_delete_req_que(vha, qpair->req);
 	if (ret != QLA_SUCCESS)
 		goto fail;
+
 	ret = qla25xx_delete_rsp_que(vha, qpair->rsp);
 	if (ret != QLA_SUCCESS)
 		goto fail;
diff --git a/drivers/scsi/qla2xxx/qla_inline.h b/drivers/scsi/qla2xxx/qla_inline.h
index 17d2c20f1f75..4d32426393c7 100644
--- a/drivers/scsi/qla2xxx/qla_inline.h
+++ b/drivers/scsi/qla2xxx/qla_inline.h
@@ -273,6 +273,7 @@ qla2x00_init_timer(srb_t *sp, unsigned long tmo)
 	sp->u.iocb_cmd.timer.expires = jiffies + tmo * HZ;
 	add_timer(&sp->u.iocb_cmd.timer);
 	sp->free = qla2x00_sp_free;
+	init_completion(&sp->comp);
 	if (IS_QLAFX00(sp->vha->hw) && (sp->type == SRB_FXIOCB_DCMD))
 		init_completion(&sp->u.iocb_cmd.u.fxiocb.fxiocb_comp);
 	if (sp->type == SRB_ELS_DCMD)
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index d810a447cb4a..1b62e943ec49 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -2158,7 +2158,9 @@ __qla2x00_alloc_iocbs(struct qla_qpair *qpair, srb_t *sp)
 skip_cmd_array:
 	/* Check for room on request queue. */
 	if (req->cnt < req_cnt + 2) {
-		if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha))
+		if (qpair->use_shadow_reg)
+			cnt = *req->out_ptr;
+		else if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha))
 			cnt = RD_REG_DWORD(&reg->isp25mq.req_q_out);
 		else if (IS_P3P_TYPE(ha))
 			cnt = RD_REG_DWORD(&reg->isp82.req_q_out);
@@ -2392,26 +2394,13 @@ qla2x00_els_dcmd_iocb_timeout(void *data)
 	srb_t *sp = data;
 	fc_port_t *fcport = sp->fcport;
 	struct scsi_qla_host *vha = sp->vha;
-	struct qla_hw_data *ha = vha->hw;
 	struct srb_iocb *lio = &sp->u.iocb_cmd;
-	unsigned long flags = 0;
 
 	ql_dbg(ql_dbg_io, vha, 0x3069,
 	    "%s Timeout, hdl=%x, portid=%02x%02x%02x\n",
 	    sp->name, sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area,
 	    fcport->d_id.b.al_pa);
 
-	/* Abort the exchange */
-	spin_lock_irqsave(&ha->hardware_lock, flags);
-	if (ha->isp_ops->abort_command(sp)) {
-		ql_dbg(ql_dbg_io, vha, 0x3070,
-		    "mbx abort_command failed.\n");
-	} else {
-		ql_dbg(ql_dbg_io, vha, 0x3071,
-		    "mbx abort_command success.\n");
-	}
-	spin_unlock_irqrestore(&ha->hardware_lock, flags);
-
 	complete(&lio->u.els_logo.comp);
 }
 
@@ -2631,7 +2620,7 @@ qla2x00_els_dcmd2_sp_done(void *ptr, int res)
 	struct scsi_qla_host *vha = sp->vha;
 
 	ql_dbg(ql_dbg_io + ql_dbg_disc, vha, 0x3072,
-	    "%s ELS hdl=%x, portid=%06x done %8pC\n",
+	    "%s ELS hdl=%x, portid=%06x done %8phC\n",
 	    sp->name, sp->handle, fcport->d_id.b24, fcport->port_name);
 
 	complete(&lio->u.els_plogi.comp);
@@ -3286,7 +3275,9 @@ qla24xx_abort_iocb(srb_t *sp, struct abort_entry_24xx *abt_iocb)
 	memset(abt_iocb, 0, sizeof(struct abort_entry_24xx));
 	abt_iocb->entry_type = ABORT_IOCB_TYPE;
 	abt_iocb->entry_count = 1;
-	abt_iocb->handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle));
+	abt_iocb->handle =
+	     cpu_to_le32(MAKE_HANDLE(aio->u.abt.req_que_no,
+		 aio->u.abt.cmd_hndl));
 	abt_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
 	abt_iocb->handle_to_abort =
 	    cpu_to_le32(MAKE_HANDLE(req->id, aio->u.abt.cmd_hndl));
@@ -3294,7 +3285,7 @@ qla24xx_abort_iocb(srb_t *sp, struct abort_entry_24xx *abt_iocb)
 	abt_iocb->port_id[1] = sp->fcport->d_id.b.area;
 	abt_iocb->port_id[2] = sp->fcport->d_id.b.domain;
 	abt_iocb->vp_index = vha->vp_idx;
-	abt_iocb->req_que_no = cpu_to_le16(req->id);
+	abt_iocb->req_que_no = cpu_to_le16(aio->u.abt.req_que_no);
 	/* Send the command to the firmware */
 	wmb();
 }
@@ -3381,6 +3372,40 @@ qla_nvme_ls(srb_t *sp, struct pt_ls4_request *cmd_pkt)
 	return rval;
 }
 
+static void
+qla25xx_ctrlvp_iocb(srb_t *sp, struct vp_ctrl_entry_24xx *vce)
+{
+	int map, pos;
+
+	vce->entry_type = VP_CTRL_IOCB_TYPE;
+	vce->handle = sp->handle;
+	vce->entry_count = 1;
+	vce->command = cpu_to_le16(sp->u.iocb_cmd.u.ctrlvp.cmd);
+	vce->vp_count = cpu_to_le16(1);
+
+	/*
+	 * index map in firmware starts with 1; decrement index
+	 * this is ok as we never use index 0
+	 */
+	map = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) / 8;
+	pos = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) & 7;
+	vce->vp_idx_map[map] |= 1 << pos;
+}
+
+static void
+qla24xx_prlo_iocb(srb_t *sp, struct logio_entry_24xx *logio)
+{
+	logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
+	logio->control_flags =
+	    cpu_to_le16(LCF_COMMAND_PRLO|LCF_IMPL_PRLO);
+
+	logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
+	logio->port_id[0] = sp->fcport->d_id.b.al_pa;
+	logio->port_id[1] = sp->fcport->d_id.b.area;
+	logio->port_id[2] = sp->fcport->d_id.b.domain;
+	logio->vp_index = sp->fcport->vha->vp_idx;
+}
+
 int
 qla2x00_start_sp(srb_t *sp)
 {
@@ -3459,6 +3484,12 @@ qla2x00_start_sp(srb_t *sp)
 	case SRB_NACK_LOGO:
 		qla2x00_send_notify_ack_iocb(sp, pkt);
 		break;
+	case SRB_CTRL_VP:
+		qla25xx_ctrlvp_iocb(sp, pkt);
+		break;
+	case SRB_PRLO_CMD:
+		qla24xx_prlo_iocb(sp, pkt);
+		break;
 	default:
 		break;
 	}
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 2fd79129bb2a..14109d86c3f6 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -809,6 +809,7 @@ skip_rio:
 		break;
 
 	case MBA_LOOP_DOWN:		/* Loop Down Event */
+		SAVE_TOPO(ha);
 		ha->flags.n2n_ae = 0;
 		ha->flags.lip_ae = 0;
 		ha->current_topology = 0;
@@ -922,7 +923,6 @@ skip_rio:
 		set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
 		set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
 
-		ha->flags.gpsc_supported = 1;
 		vha->flags.management_server_logged_in = 0;
 		break;
 
@@ -1009,7 +1009,7 @@ skip_rio:
 			if (qla_ini_mode_enabled(vha)) {
 				qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
 				fcport->logout_on_delete = 0;
-				qlt_schedule_sess_for_deletion_lock(fcport);
+				qlt_schedule_sess_for_deletion(fcport);
 			}
 			break;
 
@@ -1059,8 +1059,7 @@ global_port_update:
 		 * Mark all devices as missing so we will login again.
 		 */
 		atomic_set(&vha->loop_state, LOOP_UP);
-
-		qla2x00_mark_all_devices_lost(vha, 1);
+		vha->scan.scan_retry = 0;
 
 		set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
 		set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
@@ -1202,6 +1201,7 @@ global_port_update:
 				qla2xxx_wake_dpc(vha);
 			}
 		}
+		/* fall through */
 	case MBA_IDC_COMPLETE:
 		if (ha->notify_lb_portup_comp && !vha->vp_idx)
 			complete(&ha->lb_portup_comp);
@@ -1574,7 +1574,7 @@ qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
 		/* borrowing sts_entry_24xx.comp_status.
 		   same location as ct_entry_24xx.comp_status
 		 */
-		res = qla2x00_chk_ms_status(vha, (ms_iocb_entry_t *)pkt,
+		res = qla2x00_chk_ms_status(sp->vha, (ms_iocb_entry_t *)pkt,
 			(struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
 			sp->name);
 		sp->done(sp, res);
@@ -1769,7 +1769,7 @@ qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
 				set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 			qla2xxx_wake_dpc(vha);
 		}
-		/* drop through */
+		/* fall through */
 	default:
 		data[0] = MBS_COMMAND_ERROR;
 		break;
@@ -1936,6 +1936,37 @@ qla24xx_nvme_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
 	sp->done(sp, ret);
 }
 
+static void qla_ctrlvp_completed(scsi_qla_host_t *vha, struct req_que *req,
+    struct vp_ctrl_entry_24xx *vce)
+{
+	const char func[] = "CTRLVP-IOCB";
+	srb_t *sp;
+	int rval = QLA_SUCCESS;
+
+	sp = qla2x00_get_sp_from_handle(vha, func, req, vce);
+	if (!sp)
+		return;
+
+	if (vce->entry_status != 0) {
+		ql_dbg(ql_dbg_vport, vha, 0x10c4,
+		    "%s: Failed to complete IOCB -- error status (%x)\n",
+		    sp->name, vce->entry_status);
+		rval = QLA_FUNCTION_FAILED;
+	} else if (vce->comp_status != cpu_to_le16(CS_COMPLETE)) {
+		ql_dbg(ql_dbg_vport, vha, 0x10c5,
+		    "%s: Failed to complete IOCB -- completion status (%x) vpidx %x\n",
+		    sp->name, le16_to_cpu(vce->comp_status),
+		    le16_to_cpu(vce->vp_idx_failed));
+		rval = QLA_FUNCTION_FAILED;
+	} else {
+		ql_dbg(ql_dbg_vport, vha, 0x10c6,
+		    "Done %s.\n", __func__);
+	}
+
+	sp->rc = rval;
+	sp->done(sp, rval);
+}
+
 /**
  * qla2x00_process_response_queue() - Process response queue entries.
  * @ha: SCSI driver HA context
@@ -2369,7 +2400,6 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
 	int res = 0;
 	uint16_t state_flags = 0;
 	uint16_t retry_delay = 0;
-	uint8_t no_logout = 0;
 
 	sts = (sts_entry_t *) pkt;
 	sts24 = (struct sts_entry_24xx *) pkt;
@@ -2640,7 +2670,6 @@ check_scsi_status:
 		break;
 
 	case CS_PORT_LOGGED_OUT:
-		no_logout = 1;
 	case CS_PORT_CONFIG_CHG:
 	case CS_PORT_BUSY:
 	case CS_INCOMPLETE:
@@ -2671,11 +2700,8 @@ check_scsi_status:
 				port_state_str[atomic_read(&fcport->state)],
 				comp_status);
 
-			if (no_logout)
-				fcport->logout_on_delete = 0;
-
 			qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
-			qlt_schedule_sess_for_deletion_lock(fcport);
+			qlt_schedule_sess_for_deletion(fcport);
 		}
 
 		break;
@@ -2972,9 +2998,9 @@ process_err:
 				    (response_t *)pkt);
 				break;
 			} else {
-				/* drop through */
 				qlt_24xx_process_atio_queue(vha, 1);
 			}
+			/* fall through */
 		case ABTS_RESP_24XX:
 		case CTIO_TYPE7:
 		case CTIO_CRC2:
@@ -3005,6 +3031,10 @@ process_err:
 			qla24xx_mbx_iocb_entry(vha, rsp->req,
 			    (struct mbx_24xx_entry *)pkt);
 			break;
+		case VP_CTRL_IOCB_TYPE:
+			qla_ctrlvp_completed(vha, rsp->req,
+			    (struct vp_ctrl_entry_24xx *)pkt);
+			break;
 		default:
 			/* Type Not Supported. */
 			ql_dbg(ql_dbg_async, vha, 0x5042,
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index cb717d47339f..7397aeddd96c 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -17,6 +17,7 @@ static struct mb_cmd_name {
 	{MBC_GET_PORT_DATABASE,		"GPDB"},
 	{MBC_GET_ID_LIST,		"GIDList"},
 	{MBC_GET_LINK_PRIV_STATS,	"Stats"},
+	{MBC_GET_RESOURCE_COUNTS,	"ResCnt"},
 };
 
 static const char *mb_to_str(uint16_t cmd)
@@ -3731,6 +3732,7 @@ qla24xx_report_id_acquisition(scsi_qla_host_t *vha,
 	unsigned long   flags;
 	int found;
 	port_id_t id;
+	struct fc_port *fcport;
 
 	ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10b6,
 	    "Entered %s.\n", __func__);
@@ -3753,7 +3755,7 @@ qla24xx_report_id_acquisition(scsi_qla_host_t *vha,
 		    "Primary port id %02x%02x%02x.\n",
 		    rptid_entry->port_id[2], rptid_entry->port_id[1],
 		    rptid_entry->port_id[0]);
-
+		ha->current_topology = ISP_CFG_NL;
 		qlt_update_host_map(vha, id);
 
 	} else if (rptid_entry->format == 1) {
@@ -3797,6 +3799,8 @@ qla24xx_report_id_acquisition(scsi_qla_host_t *vha,
 			return;
 		}
 
+		ha->flags.gpsc_supported = 1;
+		ha->current_topology = ISP_CFG_F;
 		/* buffer to buffer credit flag */
 		vha->flags.bbcr_enable = (rptid_entry->u.f1.bbcr & 0xf) != 0;
 
@@ -3862,6 +3866,8 @@ qla24xx_report_id_acquisition(scsi_qla_host_t *vha,
 		    rptid_entry->u.f2.port_name);
 
 		/* N2N.  direct connect */
+		ha->current_topology = ISP_CFG_N;
+		ha->flags.rida_fmt2 = 1;
 		vha->d_id.b.domain = rptid_entry->port_id[2];
 		vha->d_id.b.area = rptid_entry->port_id[1];
 		vha->d_id.b.al_pa = rptid_entry->port_id[0];
@@ -3869,6 +3875,40 @@ qla24xx_report_id_acquisition(scsi_qla_host_t *vha,
 		spin_lock_irqsave(&ha->vport_slock, flags);
 		qlt_update_vp_map(vha, SET_AL_PA);
 		spin_unlock_irqrestore(&ha->vport_slock, flags);
+
+		list_for_each_entry(fcport, &vha->vp_fcports, list) {
+			fcport->scan_state = QLA_FCPORT_SCAN;
+		}
+
+		fcport = qla2x00_find_fcport_by_wwpn(vha,
+		    rptid_entry->u.f2.port_name, 1);
+
+		if (fcport) {
+			fcport->plogi_nack_done_deadline = jiffies + HZ;
+			fcport->scan_state = QLA_FCPORT_FOUND;
+			switch (fcport->disc_state) {
+			case DSC_DELETED:
+				ql_dbg(ql_dbg_disc, vha, 0x210d,
+				    "%s %d %8phC login\n",
+				    __func__, __LINE__, fcport->port_name);
+				qla24xx_fcport_handle_login(vha, fcport);
+				break;
+			case DSC_DELETE_PEND:
+				break;
+			default:
+				qlt_schedule_sess_for_deletion(fcport);
+				break;
+			}
+		} else {
+			id.b.al_pa  = rptid_entry->u.f2.remote_nport_id[0];
+			id.b.area   = rptid_entry->u.f2.remote_nport_id[1];
+			id.b.domain = rptid_entry->u.f2.remote_nport_id[2];
+			qla24xx_post_newsess_work(vha, &id,
+			    rptid_entry->u.f2.port_name,
+			    rptid_entry->u.f2.node_name,
+			    NULL,
+			    FC4_TYPE_UNKNOWN);
+		}
 	}
 }
 
@@ -3945,83 +3985,6 @@ qla24xx_modify_vp_config(scsi_qla_host_t *vha)
 }
 
 /*
- * qla24xx_control_vp
- *	Enable a virtual port for given host
- *
- * Input:
- *	ha = adapter block pointer.
- *	vhba = virtual adapter (unused)
- *	index = index number for enabled VP
- *
- * Returns:
- *	qla2xxx local function return status code.
- *
- * Context:
- *	Kernel context.
- */
-int
-qla24xx_control_vp(scsi_qla_host_t *vha, int cmd)
-{
-	int		rval;
-	int		map, pos;
-	struct vp_ctrl_entry_24xx   *vce;
-	dma_addr_t	vce_dma;
-	struct qla_hw_data *ha = vha->hw;
-	int	vp_index = vha->vp_idx;
-	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
-
-	ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10c1,
-	    "Entered %s enabling index %d.\n", __func__, vp_index);
-
-	if (vp_index == 0 || vp_index >= ha->max_npiv_vports)
-		return QLA_PARAMETER_ERROR;
-
-	vce = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, &vce_dma);
-	if (!vce) {
-		ql_log(ql_log_warn, vha, 0x10c2,
-		    "Failed to allocate VP control IOCB.\n");
-		return QLA_MEMORY_ALLOC_FAILED;
-	}
-
-	vce->entry_type = VP_CTRL_IOCB_TYPE;
-	vce->entry_count = 1;
-	vce->command = cpu_to_le16(cmd);
-	vce->vp_count = cpu_to_le16(1);
-
-	/* index map in firmware starts with 1; decrement index
-	 * this is ok as we never use index 0
-	 */
-	map = (vp_index - 1) / 8;
-	pos = (vp_index - 1) & 7;
-	mutex_lock(&ha->vport_lock);
-	vce->vp_idx_map[map] |= 1 << pos;
-	mutex_unlock(&ha->vport_lock);
-
-	rval = qla2x00_issue_iocb(base_vha, vce, vce_dma, 0);
-	if (rval != QLA_SUCCESS) {
-		ql_dbg(ql_dbg_mbx, vha, 0x10c3,
-		    "Failed to issue VP control IOCB (%x).\n", rval);
-	} else if (vce->entry_status != 0) {
-		ql_dbg(ql_dbg_mbx, vha, 0x10c4,
-		    "Failed to complete IOCB -- error status (%x).\n",
-		    vce->entry_status);
-		rval = QLA_FUNCTION_FAILED;
-	} else if (vce->comp_status != cpu_to_le16(CS_COMPLETE)) {
-		ql_dbg(ql_dbg_mbx, vha, 0x10c5,
-		    "Failed to complete IOCB -- completion status (%x).\n",
-		    le16_to_cpu(vce->comp_status));
-		rval = QLA_FUNCTION_FAILED;
-	} else {
-		ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10c6,
-		    "Done %s.\n", __func__);
-	}
-
-	dma_pool_free(ha->s_dma_pool, vce, vce_dma);
-
-	return rval;
-}
-
-/*
  * qla2x00_send_change_request
  *	Receive or disable RSCN request from fabric controller
  *
@@ -6160,8 +6123,7 @@ int __qla24xx_parse_gpdb(struct scsi_qla_host *vha, fc_port_t *fcport,
 	}
 
 	/* Check for logged in state. */
-	if (current_login_state != PDS_PRLI_COMPLETE &&
-	    last_login_state != PDS_PRLI_COMPLETE) {
+	if (current_login_state != PDS_PRLI_COMPLETE) {
 		ql_dbg(ql_dbg_mbx, vha, 0x119a,
 		    "Unable to verify login-state (%x/%x) for loop_id %x.\n",
 		    current_login_state, last_login_state, fcport->loop_id);
@@ -6350,3 +6312,32 @@ qla2x00_read_sfp_dev(struct scsi_qla_host *vha, char *buf, int count)
 
 	return rval;
 }
+
+int qla24xx_res_count_wait(struct scsi_qla_host *vha,
+    uint16_t *out_mb, int out_mb_sz)
+{
+	int rval = QLA_FUNCTION_FAILED;
+	mbx_cmd_t mc;
+
+	if (!vha->hw->flags.fw_started)
+		goto done;
+
+	memset(&mc, 0, sizeof(mc));
+	mc.mb[0] = MBC_GET_RESOURCE_COUNTS;
+
+	rval = qla24xx_send_mb_cmd(vha, &mc);
+	if (rval != QLA_SUCCESS) {
+		ql_dbg(ql_dbg_mbx, vha, 0xffff,
+			"%s:  fail\n", __func__);
+	} else {
+		if (out_mb_sz <= SIZEOF_IOCB_MB_REG)
+			memcpy(out_mb, mc.mb, out_mb_sz);
+		else
+			memcpy(out_mb, mc.mb, SIZEOF_IOCB_MB_REG);
+
+		ql_dbg(ql_dbg_mbx, vha, 0xffff,
+			"%s:  done\n", __func__);
+	}
+done:
+	return rval;
+}
diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c
index bd9f14bf7ac2..e965b16f21e3 100644
--- a/drivers/scsi/qla2xxx/qla_mid.c
+++ b/drivers/scsi/qla2xxx/qla_mid.c
@@ -50,10 +50,11 @@ qla24xx_allocate_vp_id(scsi_qla_host_t *vha)
 
 	spin_lock_irqsave(&ha->vport_slock, flags);
 	list_add_tail(&vha->list, &ha->vp_list);
+	spin_unlock_irqrestore(&ha->vport_slock, flags);
 
+	spin_lock_irqsave(&ha->hardware_lock, flags);
 	qlt_update_vp_map(vha, SET_VP_IDX);
-
-	spin_unlock_irqrestore(&ha->vport_slock, flags);
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 
 	mutex_unlock(&ha->vport_lock);
 	return vp_id;
@@ -158,9 +159,9 @@ qla24xx_disable_vp(scsi_qla_host_t *vha)
 	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 
 	/* Remove port id from vp target map */
-	spin_lock_irqsave(&vha->hw->vport_slock, flags);
+	spin_lock_irqsave(&vha->hw->hardware_lock, flags);
 	qlt_update_vp_map(vha, RESET_AL_PA);
-	spin_unlock_irqrestore(&vha->hw->vport_slock, flags);
+	spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
 
 	qla2x00_mark_vp_devices_dead(vha);
 	atomic_set(&vha->vp_state, VP_FAILED);
@@ -264,13 +265,20 @@ qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb)
 			case MBA_LIP_RESET:
 			case MBA_POINT_TO_POINT:
 			case MBA_CHG_IN_CONNECTION:
-			case MBA_PORT_UPDATE:
-			case MBA_RSCN_UPDATE:
 				ql_dbg(ql_dbg_async, vha, 0x5024,
 				    "Async_event for VP[%d], mb=0x%x vha=%p.\n",
 				    i, *mb, vha);
 				qla2x00_async_event(vha, rsp, mb);
 				break;
+			case MBA_PORT_UPDATE:
+			case MBA_RSCN_UPDATE:
+				if ((mb[3] & 0xff) == vha->vp_idx) {
+					ql_dbg(ql_dbg_async, vha, 0x5024,
+					    "Async_event for VP[%d], mb=0x%x vha=%p\n",
+					    i, *mb, vha);
+					qla2x00_async_event(vha, rsp, mb);
+				}
+				break;
 			}
 
 			spin_lock_irqsave(&ha->vport_slock, flags);
@@ -319,8 +327,6 @@ qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
 	ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x4012,
 	    "Entering %s vp_flags: 0x%lx.\n", __func__, vha->vp_flags);
 
-	qla2x00_do_work(vha);
-
 	/* Check if Fw is ready to configure VP first */
 	if (test_bit(VP_CONFIG_OK, &base_vha->vp_flags)) {
 		if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) {
@@ -343,15 +349,19 @@ qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
 		    "FCPort update end.\n");
 	}
 
-	if ((test_and_clear_bit(RELOGIN_NEEDED, &vha->dpc_flags)) &&
-		!test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) &&
-		atomic_read(&vha->loop_state) != LOOP_DOWN) {
+	if (test_bit(RELOGIN_NEEDED, &vha->dpc_flags) &&
+	    !test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) &&
+	    atomic_read(&vha->loop_state) != LOOP_DOWN) {
 
-		ql_dbg(ql_dbg_dpc, vha, 0x4018,
-		    "Relogin needed scheduled.\n");
-		qla2x00_relogin(vha);
-		ql_dbg(ql_dbg_dpc, vha, 0x4019,
-		    "Relogin needed end.\n");
+		if (!vha->relogin_jif ||
+		    time_after_eq(jiffies, vha->relogin_jif)) {
+			vha->relogin_jif = jiffies + HZ;
+			clear_bit(RELOGIN_NEEDED, &vha->dpc_flags);
+
+			ql_dbg(ql_dbg_dpc, vha, 0x4018,
+			    "Relogin needed scheduled.\n");
+			qla24xx_post_relogin_work(vha);
+		}
 	}
 
 	if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) &&
@@ -475,7 +485,7 @@ qla24xx_create_vhost(struct fc_vport *fc_vport)
 		    "Couldn't allocate vp_id.\n");
 		goto create_vhost_failed;
 	}
-	vha->mgmt_svr_loop_id = 10 + vha->vp_idx;
+	vha->mgmt_svr_loop_id = NPH_MGMT_SERVER;
 
 	vha->dpc_flags = 0L;
 
@@ -569,14 +579,16 @@ qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
 int
 qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req)
 {
-	int ret = -1;
+	int ret = QLA_SUCCESS;
 
-	if (req) {
+	if (req && vha->flags.qpairs_req_created) {
 		req->options |= BIT_0;
 		ret = qla25xx_init_req_que(vha, req);
-	}
-	if (ret == QLA_SUCCESS)
+		if (ret != QLA_SUCCESS)
+			return QLA_FUNCTION_FAILED;
+
 		qla25xx_free_req_que(vha, req);
+	}
 
 	return ret;
 }
@@ -584,14 +596,16 @@ qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req)
 int
 qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
 {
-	int ret = -1;
+	int ret = QLA_SUCCESS;
 
-	if (rsp) {
+	if (rsp && vha->flags.qpairs_rsp_created) {
 		rsp->options |= BIT_0;
 		ret = qla25xx_init_rsp_que(vha, rsp);
-	}
-	if (ret == QLA_SUCCESS)
+		if (ret != QLA_SUCCESS)
+			return QLA_FUNCTION_FAILED;
+
 		qla25xx_free_rsp_que(vha, rsp);
+	}
 
 	return ret;
 }
@@ -884,3 +898,79 @@ que_failed:
 failed:
 	return 0;
 }
+
+static void qla_ctrlvp_sp_done(void *s, int res)
+{
+	struct srb *sp = s;
+
+	complete(&sp->comp);
+	/* don't free sp here. Let the caller do the free */
+}
+
+/**
+ * qla24xx_control_vp() - Enable a virtual port for given host
+ * @vha:	adapter block pointer
+ * @cmd:	command type to be sent for enable virtual port
+ *
+ * Return:	qla2xxx local function return status code.
+ */
+int qla24xx_control_vp(scsi_qla_host_t *vha, int cmd)
+{
+	int rval = QLA_MEMORY_ALLOC_FAILED;
+	struct qla_hw_data *ha = vha->hw;
+	int	vp_index = vha->vp_idx;
+	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
+	srb_t *sp;
+
+	ql_dbg(ql_dbg_vport, vha, 0x10c1,
+	    "Entered %s cmd %x index %d.\n", __func__, cmd, vp_index);
+
+	if (vp_index == 0 || vp_index >= ha->max_npiv_vports)
+		return QLA_PARAMETER_ERROR;
+
+	sp = qla2x00_get_sp(base_vha, NULL, GFP_KERNEL);
+	if (!sp)
+		goto done;
+
+	sp->type = SRB_CTRL_VP;
+	sp->name = "ctrl_vp";
+	sp->done = qla_ctrlvp_sp_done;
+	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
+	sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
+	sp->u.iocb_cmd.u.ctrlvp.cmd = cmd;
+	sp->u.iocb_cmd.u.ctrlvp.vp_index = vp_index;
+
+	rval = qla2x00_start_sp(sp);
+	if (rval != QLA_SUCCESS) {
+		ql_dbg(ql_dbg_async, vha, 0xffff,
+		    "%s: %s Failed submission. %x.\n",
+		    __func__, sp->name, rval);
+		goto done_free_sp;
+	}
+
+	ql_dbg(ql_dbg_vport, vha, 0x113f, "%s hndl %x submitted\n",
+	    sp->name, sp->handle);
+
+	wait_for_completion(&sp->comp);
+	rval = sp->rc;
+	switch (rval) {
+	case QLA_FUNCTION_TIMEOUT:
+		ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Timeout. %x.\n",
+		    __func__, sp->name, rval);
+		break;
+	case QLA_SUCCESS:
+		ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s done.\n",
+		    __func__, sp->name);
+		goto done_free_sp;
+	default:
+		ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Failed. %x.\n",
+		    __func__, sp->name, rval);
+		goto done_free_sp;
+	}
+done:
+	return rval;
+
+done_free_sp:
+	sp->free(sp);
+	return rval;
+}
diff --git a/drivers/scsi/qla2xxx/qla_nx2.c b/drivers/scsi/qla2xxx/qla_nx2.c
index 0aa9c38bf347..525ac35a757b 100644
--- a/drivers/scsi/qla2xxx/qla_nx2.c
+++ b/drivers/scsi/qla2xxx/qla_nx2.c
@@ -11,8 +11,6 @@
 #include "qla_def.h"
 #include "qla_gbl.h"
 
-#include <linux/delay.h>
-
 #define TIMEOUT_100_MS 100
 
 static const uint32_t qla8044_reg_tbl[] = {
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 46f2d0cf7c0d..12ee6e02d146 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -277,6 +277,12 @@ MODULE_PARM_DESC(ql2xenablemsix,
 		 " 1 -- enable MSI-X interrupt mechanism.\n"
 		 " 2 -- enable MSI interrupt mechanism.\n");
 
+int qla2xuseresexchforels;
+module_param(qla2xuseresexchforels, int, 0444);
+MODULE_PARM_DESC(qla2xuseresexchforels,
+		 "Reserve 1/2 of emergency exchanges for ELS.\n"
+		 " 0 (default): disabled");
+
 /*
  * SCSI host template entry points
  */
@@ -294,7 +300,6 @@ static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
 
 static void qla2x00_clear_drv_active(struct qla_hw_data *);
 static void qla2x00_free_device(scsi_qla_host_t *);
-static void qla83xx_disable_laser(scsi_qla_host_t *vha);
 static int qla2xxx_map_queues(struct Scsi_Host *shost);
 static void qla2x00_destroy_deferred_work(struct qla_hw_data *);
 
@@ -1705,93 +1710,103 @@ qla2x00_loop_reset(scsi_qla_host_t *vha)
 	return QLA_SUCCESS;
 }
 
-void
-qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
+static void
+__qla2x00_abort_all_cmds(struct qla_qpair *qp, int res)
 {
-	int que, cnt, status;
+	int cnt, status;
 	unsigned long flags;
 	srb_t *sp;
+	scsi_qla_host_t *vha = qp->vha;
 	struct qla_hw_data *ha = vha->hw;
 	struct req_que *req;
 	struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
 	struct qla_tgt_cmd *cmd;
 	uint8_t trace = 0;
 
-	spin_lock_irqsave(&ha->hardware_lock, flags);
-	for (que = 0; que < ha->max_req_queues; que++) {
-		req = ha->req_q_map[que];
-		if (!req)
-			continue;
-		if (!req->outstanding_cmds)
-			continue;
-		for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
-			sp = req->outstanding_cmds[cnt];
-			if (sp) {
-				req->outstanding_cmds[cnt] = NULL;
-				if (sp->cmd_type == TYPE_SRB) {
-					if (sp->type == SRB_NVME_CMD ||
-					    sp->type == SRB_NVME_LS) {
-						sp_get(sp);
-						spin_unlock_irqrestore(
-						    &ha->hardware_lock, flags);
-						qla_nvme_abort(ha, sp);
-						spin_lock_irqsave(
-						    &ha->hardware_lock, flags);
-					} else if (GET_CMD_SP(sp) &&
-					    !ha->flags.eeh_busy &&
-					    (!test_bit(ABORT_ISP_ACTIVE,
-						&vha->dpc_flags)) &&
-					    (sp->type == SRB_SCSI_CMD)) {
-						/*
-						 * Don't abort commands in
-						 * adapter during EEH
-						 * recovery as it's not
-						 * accessible/responding.
-						 *
-						 * Get a reference to the sp
-						 * and drop the lock. The
-						 * reference ensures this
-						 * sp->done() call and not the
-						 * call in qla2xxx_eh_abort()
-						 * ends the SCSI command (with
-						 * result 'res').
-						 */
-						sp_get(sp);
-						spin_unlock_irqrestore(
-						    &ha->hardware_lock, flags);
-						status = qla2xxx_eh_abort(
-						    GET_CMD_SP(sp));
-						spin_lock_irqsave(
-						    &ha->hardware_lock, flags);
-						/*
-						 * Get rid of extra reference
-						 * if immediate exit from
-						 * ql2xxx_eh_abort
-						 */
-						if (status == FAILED &&
-						    (qla2x00_isp_reg_stat(ha)))
-							atomic_dec(
-							    &sp->ref_count);
-					}
-					sp->done(sp, res);
-				} else {
-					if (!vha->hw->tgt.tgt_ops || !tgt ||
-					    qla_ini_mode_enabled(vha)) {
-						if (!trace)
-							ql_dbg(ql_dbg_tgt_mgt,
-							    vha, 0xf003,
-							    "HOST-ABORT-HNDLR: dpc_flags=%lx. Target mode disabled\n",
-							    vha->dpc_flags);
-						continue;
-					}
-					cmd = (struct qla_tgt_cmd *)sp;
-					qlt_abort_cmd_on_host_reset(cmd->vha,
-					    cmd);
+	spin_lock_irqsave(qp->qp_lock_ptr, flags);
+	req = qp->req;
+	for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
+		sp = req->outstanding_cmds[cnt];
+		if (sp) {
+			req->outstanding_cmds[cnt] = NULL;
+			if (sp->cmd_type == TYPE_SRB) {
+				if (sp->type == SRB_NVME_CMD ||
+				    sp->type == SRB_NVME_LS) {
+					sp_get(sp);
+					spin_unlock_irqrestore(qp->qp_lock_ptr,
+					    flags);
+					qla_nvme_abort(ha, sp);
+					spin_lock_irqsave(qp->qp_lock_ptr,
+					    flags);
+				} else if (GET_CMD_SP(sp) &&
+				    !ha->flags.eeh_busy &&
+				    (!test_bit(ABORT_ISP_ACTIVE,
+					&vha->dpc_flags)) &&
+				    (sp->type == SRB_SCSI_CMD)) {
+					/*
+					 * Don't abort commands in
+					 * adapter during EEH
+					 * recovery as it's not
+					 * accessible/responding.
+					 *
+					 * Get a reference to the sp
+					 * and drop the lock. The
+					 * reference ensures this
+					 * sp->done() call and not the
+					 * call in qla2xxx_eh_abort()
+					 * ends the SCSI command (with
+					 * result 'res').
+					 */
+					sp_get(sp);
+					spin_unlock_irqrestore(qp->qp_lock_ptr,
+					    flags);
+					status = qla2xxx_eh_abort(
+					    GET_CMD_SP(sp));
+					spin_lock_irqsave(qp->qp_lock_ptr,
+					    flags);
+					/*
+					 * Get rid of extra reference
+					 * if immediate exit from
+					 * ql2xxx_eh_abort
+					 */
+					if (status == FAILED &&
+					    (qla2x00_isp_reg_stat(ha)))
+						atomic_dec(
+						    &sp->ref_count);
 				}
+				sp->done(sp, res);
+			} else {
+				if (!vha->hw->tgt.tgt_ops || !tgt ||
+				    qla_ini_mode_enabled(vha)) {
+					if (!trace)
+						ql_dbg(ql_dbg_tgt_mgt,
+						    vha, 0xf003,
+						    "HOST-ABORT-HNDLR: dpc_flags=%lx. Target mode disabled\n",
+						    vha->dpc_flags);
+					continue;
+				}
+				cmd = (struct qla_tgt_cmd *)sp;
+				qlt_abort_cmd_on_host_reset(cmd->vha, cmd);
 			}
 		}
 	}
-	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+	spin_unlock_irqrestore(qp->qp_lock_ptr, flags);
+}
+
+void
+qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
+{
+	int que;
+	struct qla_hw_data *ha = vha->hw;
+
+	__qla2x00_abort_all_cmds(ha->base_qpair, res);
+
+	for (que = 0; que < ha->max_qpairs; que++) {
+		if (!ha->queue_pair_map[que])
+			continue;
+
+		__qla2x00_abort_all_cmds(ha->queue_pair_map[que], res);
+	}
 }
 
 static int
@@ -2689,14 +2704,22 @@ static void qla2x00_iocb_work_fn(struct work_struct *work)
 {
 	struct scsi_qla_host *vha = container_of(work,
 		struct scsi_qla_host, iocb_work);
-	int cnt = 0;
+	struct qla_hw_data *ha = vha->hw;
+	struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
+	int i = 20;
+	unsigned long flags;
 
-	while (!list_empty(&vha->work_list)) {
+	if (test_bit(UNLOADING, &base_vha->dpc_flags))
+		return;
+
+	while (!list_empty(&vha->work_list) && i > 0) {
 		qla2x00_do_work(vha);
-		cnt++;
-		if (cnt > 10)
-			break;
+		i--;
 	}
+
+	spin_lock_irqsave(&vha->work_lock, flags);
+	clear_bit(IOCB_WORK_ACTIVE, &vha->dpc_flags);
+	spin_unlock_irqrestore(&vha->work_lock, flags);
 }
 
 /*
@@ -2790,6 +2813,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	ha->init_cb_size = sizeof(init_cb_t);
 	ha->link_data_rate = PORT_SPEED_UNKNOWN;
 	ha->optrom_size = OPTROM_SIZE_2300;
+	ha->max_exchg = FW_MAX_EXCHANGES_CNT;
 
 	/* Assign ISP specific operations. */
 	if (IS_QLA2100(ha)) {
@@ -3011,9 +3035,6 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	base_vha = qla2x00_create_host(sht, ha);
 	if (!base_vha) {
 		ret = -ENOMEM;
-		qla2x00_mem_free(ha);
-		qla2x00_free_req_que(ha, req);
-		qla2x00_free_rsp_que(ha, rsp);
 		goto probe_hw_failed;
 	}
 
@@ -3023,7 +3044,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	host = base_vha->host;
 	base_vha->req = req;
 	if (IS_QLA2XXX_MIDTYPE(ha))
-		base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
+		base_vha->mgmt_svr_loop_id = NPH_MGMT_SERVER;
 	else
 		base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
 						base_vha->vp_idx;
@@ -3074,7 +3095,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	/* Set up the irqs */
 	ret = qla2x00_request_irqs(ha, rsp);
 	if (ret)
-		goto probe_init_failed;
+		goto probe_hw_failed;
 
 	/* Alloc arrays of request and response ring ptrs */
 	if (!qla2x00_alloc_queues(ha, req, rsp)) {
@@ -3193,10 +3214,11 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	    host->can_queue, base_vha->req,
 	    base_vha->mgmt_svr_loop_id, host->sg_tablesize);
 
+	ha->wq = alloc_workqueue("qla2xxx_wq", 0, 0);
+
 	if (ha->mqenable) {
 		bool mq = false;
 		bool startit = false;
-		ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 0);
 
 		if (QLA_TGT_MODE_ENABLED()) {
 			mq = true;
@@ -3390,6 +3412,9 @@ probe_failed:
 	scsi_host_put(base_vha->host);
 
 probe_hw_failed:
+	qla2x00_mem_free(ha);
+	qla2x00_free_req_que(ha, req);
+	qla2x00_free_rsp_que(ha, rsp);
 	qla2x00_clear_drv_active(ha);
 
 iospace_config_failed:
@@ -3448,8 +3473,13 @@ qla2x00_shutdown(struct pci_dev *pdev)
 	if (ha->eft)
 		qla2x00_disable_eft_trace(vha);
 
-	/* Stop currently executing firmware. */
-	qla2x00_try_to_stop_firmware(vha);
+	if (IS_QLA25XX(ha) ||  IS_QLA2031(ha) || IS_QLA27XX(ha)) {
+		if (ha->flags.fw_started)
+			qla2x00_abort_isp_cleanup(vha);
+	} else {
+		/* Stop currently executing firmware. */
+		qla2x00_try_to_stop_firmware(vha);
+	}
 
 	/* Turn adapter off line */
 	vha->flags.online = 0;
@@ -3609,6 +3639,8 @@ qla2x00_remove_one(struct pci_dev *pdev)
 	dma_free_coherent(&ha->pdev->dev,
 		base_vha->gnl.size, base_vha->gnl.l, base_vha->gnl.ldma);
 
+	vfree(base_vha->scan.l);
+
 	if (IS_QLAFX00(ha))
 		qlafx00_driver_shutdown(base_vha, 20);
 
@@ -3628,10 +3660,6 @@ qla2x00_remove_one(struct pci_dev *pdev)
 
 	qla84xx_put_chip(base_vha);
 
-	/* Laser should be disabled only for ISP2031 */
-	if (IS_QLA2031(ha))
-		qla83xx_disable_laser(base_vha);
-
 	/* Disable timer */
 	if (base_vha->timer_active)
 		qla2x00_stop_timer(base_vha);
@@ -3692,8 +3720,16 @@ qla2x00_free_device(scsi_qla_host_t *vha)
 	if (ha->eft)
 		qla2x00_disable_eft_trace(vha);
 
-	/* Stop currently executing firmware. */
-	qla2x00_try_to_stop_firmware(vha);
+	if (IS_QLA25XX(ha) ||  IS_QLA2031(ha) || IS_QLA27XX(ha)) {
+		if (ha->flags.fw_started)
+			qla2x00_abort_isp_cleanup(vha);
+	} else {
+		if (ha->flags.fw_started) {
+			/* Stop currently executing firmware. */
+			qla2x00_try_to_stop_firmware(vha);
+			ha->flags.fw_started = 0;
+		}
+	}
 
 	vha->flags.online = 0;
 
@@ -3833,7 +3869,7 @@ qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
 
 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
 		fcport->scan_state = 0;
-		qlt_schedule_sess_for_deletion_lock(fcport);
+		qlt_schedule_sess_for_deletion(fcport);
 
 		if (vha->vp_idx != 0 && vha->vp_idx != fcport->vha->vp_idx)
 			continue;
@@ -4221,6 +4257,9 @@ qla2x00_number_of_exch(scsi_qla_host_t *vha, u32 *ret_cnt, u16 max_cnt)
 	u32 temp;
 	*ret_cnt = FW_DEF_EXCHANGES_CNT;
 
+	if (max_cnt > vha->hw->max_exchg)
+		max_cnt = vha->hw->max_exchg;
+
 	if (qla_ini_mode_enabled(vha)) {
 		if (ql2xiniexchg > max_cnt)
 			ql2xiniexchg = max_cnt;
@@ -4250,8 +4289,8 @@ int
 qla2x00_set_exchoffld_buffer(scsi_qla_host_t *vha)
 {
 	int rval;
-	u16 size, max_cnt;
-	u32 temp;
+	u16	size, max_cnt;
+	u32 actual_cnt, totsz;
 	struct qla_hw_data *ha = vha->hw;
 
 	if (!ha->flags.exchoffld_enabled)
@@ -4268,16 +4307,19 @@ qla2x00_set_exchoffld_buffer(scsi_qla_host_t *vha)
 		return rval;
 	}
 
-	qla2x00_number_of_exch(vha, &temp, max_cnt);
-	temp *= size;
+	qla2x00_number_of_exch(vha, &actual_cnt, max_cnt);
+	ql_log(ql_log_info, vha, 0xd014,
+	    "Actual exchange offload count: %d.\n", actual_cnt);
+
+	totsz = actual_cnt * size;
 
-	if (temp != ha->exchoffld_size) {
+	if (totsz != ha->exchoffld_size) {
 		qla2x00_free_exchoffld_buffer(ha);
-		ha->exchoffld_size = temp;
+		ha->exchoffld_size = totsz;
 
 		ql_log(ql_log_info, vha, 0xd016,
-		    "Exchange offload: max_count=%d, buffers=0x%x, total=%d.\n",
-		    max_cnt, size, temp);
+		    "Exchange offload: max_count=%d, actual count=%d entry sz=0x%x, total sz=0x%x\n",
+		    max_cnt, actual_cnt, size, totsz);
 
 		ql_log(ql_log_info, vha, 0xd017,
 		    "Exchange Buffers requested size = 0x%x\n",
@@ -4288,7 +4330,21 @@ qla2x00_set_exchoffld_buffer(scsi_qla_host_t *vha)
 			ha->exchoffld_size, &ha->exchoffld_buf_dma, GFP_KERNEL);
 		if (!ha->exchoffld_buf) {
 			ql_log_pci(ql_log_fatal, ha->pdev, 0xd013,
-			"Failed to allocate memory for exchoffld_buf_dma.\n");
+			"Failed to allocate memory for Exchange Offload.\n");
+
+			if (ha->max_exchg >
+			    (FW_DEF_EXCHANGES_CNT + REDUCE_EXCHANGES_CNT)) {
+				ha->max_exchg -= REDUCE_EXCHANGES_CNT;
+			} else if (ha->max_exchg >
+			    (FW_DEF_EXCHANGES_CNT + 512)) {
+				ha->max_exchg -= 512;
+			} else {
+				ha->flags.exchoffld_enabled = 0;
+				ql_log_pci(ql_log_fatal, ha->pdev, 0xd013,
+				    "Disabling Exchange offload due to lack of memory\n");
+			}
+			ha->exchoffld_size = 0;
+
 			return -ENOMEM;
 		}
 	}
@@ -4514,6 +4570,8 @@ struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
 	INIT_LIST_HEAD(&vha->qp_list);
 	INIT_LIST_HEAD(&vha->gnl.fcports);
 	INIT_LIST_HEAD(&vha->nvme_rport_list);
+	INIT_LIST_HEAD(&vha->gpnid_list);
+	INIT_WORK(&vha->iocb_work, qla2x00_iocb_work_fn);
 
 	spin_lock_init(&vha->work_lock);
 	spin_lock_init(&vha->cmd_list_lock);
@@ -4531,6 +4589,19 @@ struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
 		return NULL;
 	}
 
+	/* todo: what about ext login? */
+	vha->scan.size = ha->max_fibre_devices * sizeof(struct fab_scan_rp);
+	vha->scan.l = vmalloc(vha->scan.size);
+	if (!vha->scan.l) {
+		ql_log(ql_log_fatal, vha, 0xd04a,
+		    "Alloc failed for scan database.\n");
+		dma_free_coherent(&ha->pdev->dev, vha->gnl.size,
+		    vha->gnl.l, vha->gnl.ldma);
+		scsi_remove_host(vha->host);
+		return NULL;
+	}
+	INIT_DELAYED_WORK(&vha->scan.scan_work, qla_scan_work_fn);
+
 	sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
 	ql_dbg(ql_dbg_init, vha, 0x0041,
 	    "Allocated the host=%p hw=%p vha=%p dev_name=%s",
@@ -4566,15 +4637,18 @@ int
 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
 {
 	unsigned long flags;
+	bool q = false;
 
 	spin_lock_irqsave(&vha->work_lock, flags);
 	list_add_tail(&e->list, &vha->work_list);
+
+	if (!test_and_set_bit(IOCB_WORK_ACTIVE, &vha->dpc_flags))
+		q = true;
+
 	spin_unlock_irqrestore(&vha->work_lock, flags);
 
-	if (QLA_EARLY_LINKUP(vha->hw))
-		schedule_work(&vha->iocb_work);
-	else
-		qla2xxx_wake_dpc(vha);
+	if (q)
+		queue_work(vha->hw->wq, &vha->iocb_work);
 
 	return QLA_SUCCESS;
 }
@@ -4623,6 +4697,7 @@ int qla2x00_post_async_##name##_work(		\
 		e->u.logio.data[0] = data[0];	\
 		e->u.logio.data[1] = data[1];	\
 	}					\
+	fcport->flags |= FCF_ASYNC_ACTIVE;	\
 	return qla2x00_post_work(vha, e);	\
 }
 
@@ -4631,6 +4706,8 @@ qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
 qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
 qla2x00_post_async_work(adisc, QLA_EVT_ASYNC_ADISC);
 qla2x00_post_async_work(adisc_done, QLA_EVT_ASYNC_ADISC_DONE);
+qla2x00_post_async_work(prlo, QLA_EVT_ASYNC_PRLO);
+qla2x00_post_async_work(prlo_done, QLA_EVT_ASYNC_PRLO_DONE);
 
 int
 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
@@ -4699,6 +4776,11 @@ void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
 	struct qlt_plogi_ack_t *pla =
 	    (struct qlt_plogi_ack_t *)e->u.new_sess.pla;
 	uint8_t free_fcport = 0;
+	u64 wwn;
+
+	ql_dbg(ql_dbg_disc, vha, 0xffff,
+	    "%s %d %8phC enter\n",
+	    __func__, __LINE__, e->u.new_sess.port_name);
 
 	spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
 	fcport = qla2x00_find_fcport_by_wwpn(vha, e->u.new_sess.port_name, 1);
@@ -4706,6 +4788,9 @@ void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
 		fcport->d_id = e->u.new_sess.id;
 		if (pla) {
 			fcport->fw_login_state = DSC_LS_PLOGI_PEND;
+			memcpy(fcport->node_name,
+			    pla->iocb.u.isp24.u.plogi.node_name,
+			    WWN_SIZE);
 			qlt_plogi_ack_link(vha, pla, fcport, QLT_PLOGI_LINK_SAME_WWN);
 			/* we took an extra ref_count to prevent PLOGI ACK when
 			 * fcport/sess has not been created.
@@ -4717,9 +4802,10 @@ void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
 		fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
 		if (fcport) {
 			fcport->d_id = e->u.new_sess.id;
-			fcport->scan_state = QLA_FCPORT_FOUND;
 			fcport->flags |= FCF_FABRIC_DEVICE;
 			fcport->fw_login_state = DSC_LS_PLOGI_PEND;
+			if (e->u.new_sess.fc4_type == FC4_TYPE_FCP_SCSI)
+				fcport->fc4_type = FC4_TYPE_FCP_SCSI;
 
 			memcpy(fcport->port_name, e->u.new_sess.port_name,
 			    WWN_SIZE);
@@ -4734,7 +4820,7 @@ void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
 		}
 
 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
-		/* search again to make sure one else got ahead */
+		/* search again to make sure no one else got ahead */
 		tfcp = qla2x00_find_fcport_by_wwpn(vha,
 		    e->u.new_sess.port_name, 1);
 		if (tfcp) {
@@ -4748,20 +4834,82 @@ void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
 		} else {
 			list_add_tail(&fcport->list, &vha->vp_fcports);
 
-			if (pla) {
-				qlt_plogi_ack_link(vha, pla, fcport,
-				    QLT_PLOGI_LINK_SAME_WWN);
-				pla->ref_count--;
-			}
+		}
+		if (pla) {
+			qlt_plogi_ack_link(vha, pla, fcport,
+			    QLT_PLOGI_LINK_SAME_WWN);
+			pla->ref_count--;
 		}
 	}
 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
 
 	if (fcport) {
-		if (pla)
+		if (N2N_TOPO(vha->hw))
+			fcport->flags &= ~FCF_FABRIC_DEVICE;
+
+		fcport->id_changed = 1;
+		fcport->scan_state = QLA_FCPORT_FOUND;
+		memcpy(fcport->node_name, e->u.new_sess.node_name, WWN_SIZE);
+
+		if (pla) {
+			if (pla->iocb.u.isp24.status_subcode == ELS_PRLI) {
+				u16 wd3_lo;
+
+				fcport->fw_login_state = DSC_LS_PRLI_PEND;
+				fcport->local = 0;
+				fcport->loop_id =
+					le16_to_cpu(
+					    pla->iocb.u.isp24.nport_handle);
+				fcport->fw_login_state = DSC_LS_PRLI_PEND;
+				wd3_lo =
+				    le16_to_cpu(
+					pla->iocb.u.isp24.u.prli.wd3_lo);
+
+				if (wd3_lo & BIT_7)
+					fcport->conf_compl_supported = 1;
+
+				if ((wd3_lo & BIT_4) == 0)
+					fcport->port_type = FCT_INITIATOR;
+				else
+					fcport->port_type = FCT_TARGET;
+			}
 			qlt_plogi_ack_unref(vha, pla);
-		else
-			qla24xx_async_gffid(vha, fcport);
+		} else {
+			spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
+			tfcp = qla2x00_find_fcport_by_nportid(vha,
+			    &e->u.new_sess.id, 1);
+			if (tfcp && (tfcp != fcport)) {
+				/*
+				 * We have a conflict fcport with same NportID.
+				 */
+				ql_dbg(ql_dbg_disc, vha, 0xffff,
+				    "%s %8phC found conflict b4 add. DS %d LS %d\n",
+				    __func__, tfcp->port_name, tfcp->disc_state,
+				    tfcp->fw_login_state);
+
+				switch (tfcp->disc_state) {
+				case DSC_DELETED:
+					break;
+				case DSC_DELETE_PEND:
+					fcport->login_pause = 1;
+					tfcp->conflict = fcport;
+					break;
+				default:
+					fcport->login_pause = 1;
+					tfcp->conflict = fcport;
+					qlt_schedule_sess_for_deletion(tfcp);
+					break;
+				}
+			}
+			spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
+
+			wwn = wwn_to_u64(fcport->node_name);
+
+			if (!wwn)
+				qla24xx_async_gnnid(vha, fcport);
+			else
+				qla24xx_async_gnl(vha, fcport);
+		}
 	}
 
 	if (free_fcport) {
@@ -4771,6 +4919,20 @@ void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
 	}
 }
 
+static void qla_sp_retry(struct scsi_qla_host *vha, struct qla_work_evt *e)
+{
+	struct srb *sp = e->u.iosb.sp;
+	int rval;
+
+	rval = qla2x00_start_sp(sp);
+	if (rval != QLA_SUCCESS) {
+		ql_dbg(ql_dbg_disc, vha, 0x2043,
+		    "%s: %s: Re-issue IOCB failed (%d).\n",
+		    __func__, sp->name, rval);
+		qla24xx_sp_unmap(vha, sp);
+	}
+}
+
 void
 qla2x00_do_work(struct scsi_qla_host *vha)
 {
@@ -4824,8 +4986,11 @@ qla2x00_do_work(struct scsi_qla_host *vha)
 		case QLA_EVT_GPNID:
 			qla24xx_async_gpnid(vha, &e->u.gpnid.id);
 			break;
-		case QLA_EVT_GPNID_DONE:
-			qla24xx_async_gpnid_done(vha, e->u.iosb.sp);
+		case QLA_EVT_UNMAP:
+			qla24xx_sp_unmap(vha, e->u.iosb.sp);
+			break;
+		case QLA_EVT_RELOGIN:
+			qla2x00_relogin(vha);
 			break;
 		case QLA_EVT_NEW_SESS:
 			qla24xx_create_new_sess(vha, e);
@@ -4849,6 +5014,30 @@ qla2x00_do_work(struct scsi_qla_host *vha)
 		case QLA_EVT_NACK:
 			qla24xx_do_nack_work(vha, e);
 			break;
+		case QLA_EVT_ASYNC_PRLO:
+			qla2x00_async_prlo(vha, e->u.logio.fcport);
+			break;
+		case QLA_EVT_ASYNC_PRLO_DONE:
+			qla2x00_async_prlo_done(vha, e->u.logio.fcport,
+			    e->u.logio.data);
+			break;
+		case QLA_EVT_GPNFT:
+			qla24xx_async_gpnft(vha, e->u.gpnft.fc4_type);
+			break;
+		case QLA_EVT_GPNFT_DONE:
+			qla24xx_async_gpnft_done(vha, e->u.iosb.sp);
+			break;
+		case QLA_EVT_GNNFT_DONE:
+			qla24xx_async_gnnft_done(vha, e->u.iosb.sp);
+			break;
+		case QLA_EVT_GNNID:
+			qla24xx_async_gnnid(vha, e->u.fcport.fcport);
+			break;
+		case QLA_EVT_GFPNID:
+			qla24xx_async_gfpnid(vha, e->u.fcport.fcport);
+			break;
+		case QLA_EVT_SP_RETRY:
+			qla_sp_retry(vha, e);
 		}
 		if (e->flags & QLA_EVT_FLAG_FREE)
 			kfree(e);
@@ -4858,6 +5047,20 @@ qla2x00_do_work(struct scsi_qla_host *vha)
 	}
 }
 
+int qla24xx_post_relogin_work(struct scsi_qla_host *vha)
+{
+	struct qla_work_evt *e;
+
+	e = qla2x00_alloc_work(vha, QLA_EVT_RELOGIN);
+
+	if (!e) {
+		set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
+		return QLA_FUNCTION_FAILED;
+	}
+
+	return qla2x00_post_work(vha, e);
+}
+
 /* Relogins all the fcports of a vport
  * Context: dpc thread
  */
@@ -4868,14 +5071,14 @@ void qla2x00_relogin(struct scsi_qla_host *vha)
 	struct event_arg ea;
 
 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
-	/*
-	 * If the port is not ONLINE then try to login
-	 * to it if we haven't run out of retries.
-	 */
+		/*
+		 * If the port is not ONLINE then try to login
+		 * to it if we haven't run out of retries.
+		 */
 		if (atomic_read(&fcport->state) != FCS_ONLINE &&
-		    fcport->login_retry && !(fcport->flags & FCF_ASYNC_SENT)) {
-			fcport->login_retry--;
-			if (fcport->flags & FCF_FABRIC_DEVICE) {
+		    fcport->login_retry &&
+		    !(fcport->flags & (FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE))) {
+			if (vha->hw->current_topology != ISP_CFG_NL) {
 				ql_dbg(ql_dbg_disc, fcport->vha, 0x2108,
 				    "%s %8phC DS %d LS %d\n", __func__,
 				    fcport->port_name, fcport->disc_state,
@@ -4884,7 +5087,8 @@ void qla2x00_relogin(struct scsi_qla_host *vha)
 				ea.event = FCME_RELOGIN;
 				ea.fcport = fcport;
 				qla2x00_fcport_event_handler(vha, &ea);
-			} else {
+			} else if (vha->hw->current_topology == ISP_CFG_NL) {
+				fcport->login_retry--;
 				status = qla2x00_local_device_login(vha,
 								fcport);
 				if (status == QLA_SUCCESS) {
@@ -4912,6 +5116,9 @@ void qla2x00_relogin(struct scsi_qla_host *vha)
 		if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
 			break;
 	}
+
+	ql_dbg(ql_dbg_disc, vha, 0x400e,
+	    "Relogin end.\n");
 }
 
 /* Schedule work on any of the dpc-workqueues */
@@ -5687,8 +5894,6 @@ qla2x00_do_dpc(void *data)
 		if (test_bit(UNLOADING, &base_vha->dpc_flags))
 			break;
 
-		qla2x00_do_work(base_vha);
-
 		if (IS_P3P_TYPE(ha)) {
 			if (IS_QLA8044(ha)) {
 				if (test_and_clear_bit(ISP_UNRECOVERABLE,
@@ -5867,16 +6072,19 @@ qla2x00_do_dpc(void *data)
 		}
 
 		/* Retry each device up to login retry count */
-		if ((test_and_clear_bit(RELOGIN_NEEDED,
-						&base_vha->dpc_flags)) &&
+		if (test_bit(RELOGIN_NEEDED, &base_vha->dpc_flags) &&
 		    !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
 		    atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
 
-			ql_dbg(ql_dbg_dpc, base_vha, 0x400d,
-			    "Relogin scheduled.\n");
-			qla2x00_relogin(base_vha);
-			ql_dbg(ql_dbg_dpc, base_vha, 0x400e,
-			    "Relogin end.\n");
+			if (!base_vha->relogin_jif ||
+			    time_after_eq(jiffies, base_vha->relogin_jif)) {
+				base_vha->relogin_jif = jiffies + HZ;
+				clear_bit(RELOGIN_NEEDED, &base_vha->dpc_flags);
+
+				ql_dbg(ql_dbg_disc, base_vha, 0x400d,
+				    "Relogin scheduled.\n");
+				qla24xx_post_relogin_work(base_vha);
+			}
 		}
 loop_resync_check:
 		if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
@@ -6135,8 +6343,17 @@ qla2x00_timer(struct timer_list *t)
 	}
 
 	/* Process any deferred work. */
-	if (!list_empty(&vha->work_list))
-		start_dpc++;
+	if (!list_empty(&vha->work_list)) {
+		unsigned long flags;
+		bool q = false;
+
+		spin_lock_irqsave(&vha->work_lock, flags);
+		if (!test_and_set_bit(IOCB_WORK_ACTIVE, &vha->dpc_flags))
+			q = true;
+		spin_unlock_irqrestore(&vha->work_lock, flags);
+		if (q)
+			queue_work(vha->hw->wq, &vha->iocb_work);
+	}
 
 	/*
 	 * FC-NVME
@@ -6580,37 +6797,16 @@ qla2xxx_pci_resume(struct pci_dev *pdev)
 	ha->flags.eeh_busy = 0;
 }
 
-static void
-qla83xx_disable_laser(scsi_qla_host_t *vha)
-{
-	uint32_t reg, data, fn;
-	struct qla_hw_data *ha = vha->hw;
-	struct device_reg_24xx __iomem *isp_reg = &ha->iobase->isp24;
-
-	/* pci func #/port # */
-	ql_dbg(ql_dbg_init, vha, 0x004b,
-	    "Disabling Laser for hba: %p\n", vha);
-
-	fn = (RD_REG_DWORD(&isp_reg->ctrl_status) &
-		(BIT_15|BIT_14|BIT_13|BIT_12));
-
-	fn = (fn >> 12);
-
-	if (fn & 1)
-		reg = PORT_1_2031;
-	else
-		reg = PORT_0_2031;
-
-	data = LASER_OFF_2031;
-
-	qla83xx_wr_reg(vha, reg, data);
-}
-
 static int qla2xxx_map_queues(struct Scsi_Host *shost)
 {
+	int rc;
 	scsi_qla_host_t *vha = (scsi_qla_host_t *)shost->hostdata;
 
-	return blk_mq_pci_map_queues(&shost->tag_set, vha->hw->pdev);
+	if (USER_CTRL_IRQ(vha->hw))
+		rc = blk_mq_map_queues(&shost->tag_set);
+	else
+		rc = blk_mq_pci_map_queues(&shost->tag_set, vha->hw->pdev);
+	return rc;
 }
 
 static const struct pci_error_handlers qla2xxx_err_handler = {
diff --git a/drivers/scsi/qla2xxx/qla_sup.c b/drivers/scsi/qla2xxx/qla_sup.c
index b4336e0cd85f..d2db86ea06b2 100644
--- a/drivers/scsi/qla2xxx/qla_sup.c
+++ b/drivers/scsi/qla2xxx/qla_sup.c
@@ -2461,6 +2461,7 @@ qla2x00_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
 				sec_mask = 0x1e000;
 				break;
 			}
+			/* fall through */
 		default:
 			/* Default to 16 kb sector size. */
 			rest_addr = 0x3fff;
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 18069edd4773..fc89af8fe256 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -75,7 +75,8 @@ MODULE_PARM_DESC(ql2xuctrlirq,
 
 int ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE;
 
-static int temp_sam_status = SAM_STAT_BUSY;
+static int qla_sam_status = SAM_STAT_BUSY;
+static int tc_sam_status = SAM_STAT_TASK_SET_FULL; /* target core */
 
 /*
  * From scsi/fc/fc_fcp.h
@@ -208,7 +209,7 @@ struct scsi_qla_host *qlt_find_host_by_d_id(struct scsi_qla_host *vha,
 
 	host = btree_lookup32(&vha->hw->tgt.host_map, key);
 	if (!host)
-		ql_dbg(ql_dbg_tgt_mgt, vha, 0xf005,
+		ql_dbg(ql_dbg_tgt_mgt + ql_dbg_verbose, vha, 0xf005,
 		    "Unable to find host %06x\n", key);
 
 	return host;
@@ -309,17 +310,17 @@ static void qlt_try_to_dequeue_unknown_atios(struct scsi_qla_host *vha,
 
 		host = qlt_find_host_by_d_id(vha, u->atio.u.isp24.fcp_hdr.d_id);
 		if (host != NULL) {
-			ql_dbg(ql_dbg_async, vha, 0x502f,
+			ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x502f,
 			    "Requeuing unknown ATIO_TYPE7 %p\n", u);
 			qlt_24xx_atio_pkt(host, &u->atio, ha_locked);
 		} else if (tgt->tgt_stop) {
-			ql_dbg(ql_dbg_async, vha, 0x503a,
+			ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x503a,
 			    "Freeing unknown %s %p, because tgt is being stopped\n",
 			    "ATIO_TYPE7", u);
 			qlt_send_term_exchange(vha->hw->base_qpair, NULL,
 			    &u->atio, ha_locked, 0);
 		} else {
-			ql_dbg(ql_dbg_async, vha, 0x503d,
+			ql_dbg(ql_dbg_async + ql_dbg_verbose, vha, 0x503d,
 			    "Reschedule u %p, vha %p, host %p\n", u, vha, host);
 			if (!queued) {
 				queued = 1;
@@ -450,6 +451,7 @@ void qlt_response_pkt_all_vps(struct scsi_qla_host *vha,
 		ql_dbg(ql_dbg_tgt, vha, 0xe073,
 			"qla_target(%d):%s: CRC2 Response pkt\n",
 			vha->vp_idx, __func__);
+		/* fall through */
 	case CTIO_TYPE7:
 	{
 		struct ctio7_from_24xx *entry = (struct ctio7_from_24xx *)pkt;
@@ -606,7 +608,7 @@ void qla2x00_async_nack_sp_done(void *s, int res)
 				    __func__, __LINE__,
 				    sp->fcport->port_name,
 				    vha->fcport_count);
-
+				sp->fcport->disc_state = DSC_UPD_FCPORT;
 				qla24xx_post_upd_fcport_work(vha, sp->fcport);
 			} else {
 				ql_dbg(ql_dbg_disc, vha, 0x20f5,
@@ -665,7 +667,7 @@ int qla24xx_async_notify_ack(scsi_qla_host_t *vha, fc_port_t *fcport,
 	qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha)+2);
 
 	sp->u.iocb_cmd.u.nack.ntfy = ntfy;
-
+	sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
 	sp->done = qla2x00_async_nack_sp_done;
 
 	rval = qla2x00_start_sp(sp);
@@ -861,7 +863,10 @@ void qlt_plogi_ack_unref(struct scsi_qla_host *vha,
 
 	fcport->loop_id = loop_id;
 	fcport->d_id = port_id;
-	qla24xx_post_nack_work(vha, fcport, iocb, SRB_NACK_PLOGI);
+	if (iocb->u.isp24.status_subcode == ELS_PLOGI)
+		qla24xx_post_nack_work(vha, fcport, iocb, SRB_NACK_PLOGI);
+	else
+		qla24xx_post_nack_work(vha, fcport, iocb, SRB_NACK_PRLI);
 
 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
 		if (fcport->plogi_link[QLT_PLOGI_LINK_SAME_WWN] == pla)
@@ -890,6 +895,17 @@ qlt_plogi_ack_link(struct scsi_qla_host *vha, struct qlt_plogi_ack_t *pla,
 		iocb->u.isp24.port_id[1], iocb->u.isp24.port_id[0],
 		pla->ref_count, pla, link);
 
+	if (link == QLT_PLOGI_LINK_CONFLICT) {
+		switch (sess->disc_state) {
+		case DSC_DELETED:
+		case DSC_DELETE_PEND:
+			pla->ref_count--;
+			return;
+		default:
+			break;
+		}
+	}
+
 	if (sess->plogi_link[link])
 		qlt_plogi_ack_unref(vha, sess->plogi_link[link]);
 
@@ -954,8 +970,9 @@ static void qlt_free_session_done(struct work_struct *work)
 	struct qla_hw_data *ha = vha->hw;
 	unsigned long flags;
 	bool logout_started = false;
-	struct event_arg ea;
 	scsi_qla_host_t *base_vha;
+	struct qlt_plogi_ack_t *own =
+		sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN];
 
 	ql_dbg(ql_dbg_tgt_mgt, vha, 0xf084,
 		"%s: se_sess %p / sess %p from port %8phC loop_id %#04x"
@@ -971,19 +988,35 @@ static void qlt_free_session_done(struct work_struct *work)
 
 			logo.id = sess->d_id;
 			logo.cmd_count = 0;
+			sess->send_els_logo = 0;
 			qlt_send_first_logo(vha, &logo);
 		}
 
-		if (sess->logout_on_delete) {
+		if (sess->logout_on_delete && sess->loop_id != FC_NO_LOOP_ID) {
 			int rc;
 
-			rc = qla2x00_post_async_logout_work(vha, sess, NULL);
-			if (rc != QLA_SUCCESS)
-				ql_log(ql_log_warn, vha, 0xf085,
-				    "Schedule logo failed sess %p rc %d\n",
-				    sess, rc);
-			else
-				logout_started = true;
+			if (!own ||
+			    (own &&
+			     (own->iocb.u.isp24.status_subcode == ELS_PLOGI))) {
+				rc = qla2x00_post_async_logout_work(vha, sess,
+				    NULL);
+				if (rc != QLA_SUCCESS)
+					ql_log(ql_log_warn, vha, 0xf085,
+					    "Schedule logo failed sess %p rc %d\n",
+					    sess, rc);
+				else
+					logout_started = true;
+			} else if (own && (own->iocb.u.isp24.status_subcode ==
+				ELS_PRLI) && ha->flags.rida_fmt2) {
+				rc = qla2x00_post_async_prlo_work(vha, sess,
+				    NULL);
+				if (rc != QLA_SUCCESS)
+					ql_log(ql_log_warn, vha, 0xf085,
+					    "Schedule PRLO failed sess %p rc %d\n",
+					    sess, rc);
+				else
+					logout_started = true;
+			}
 		}
 	}
 
@@ -1007,7 +1040,7 @@ static void qlt_free_session_done(struct work_struct *work)
 		}
 
 		ql_dbg(ql_dbg_disc, vha, 0xf087,
-		    "%s: sess %p logout completed\n",__func__, sess);
+		    "%s: sess %p logout completed\n", __func__, sess);
 	}
 
 	if (sess->logo_ack_needed) {
@@ -1033,8 +1066,7 @@ static void qlt_free_session_done(struct work_struct *work)
 		sess->login_succ = 0;
 	}
 
-	if (sess->chip_reset != ha->base_qpair->chip_reset)
-		qla2x00_clear_loop_id(sess);
+	qla2x00_clear_loop_id(sess);
 
 	if (sess->conflict) {
 		sess->conflict->login_pause = 0;
@@ -1044,8 +1076,6 @@ static void qlt_free_session_done(struct work_struct *work)
 	}
 
 	{
-		struct qlt_plogi_ack_t *own =
-		    sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN];
 		struct qlt_plogi_ack_t *con =
 		    sess->plogi_link[QLT_PLOGI_LINK_CONFLICT];
 		struct imm_ntfy_from_isp *iocb;
@@ -1076,6 +1106,7 @@ static void qlt_free_session_done(struct work_struct *work)
 			sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] = NULL;
 		}
 	}
+
 	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
 
 	ql_dbg(ql_dbg_tgt_mgt, vha, 0xf001,
@@ -1089,14 +1120,24 @@ static void qlt_free_session_done(struct work_struct *work)
 		wake_up_all(&vha->fcport_waitQ);
 
 	base_vha = pci_get_drvdata(ha->pdev);
+
+	sess->free_pending = 0;
+
 	if (test_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags))
 		return;
 
-	if (!tgt || !tgt->tgt_stop) {
-		memset(&ea, 0, sizeof(ea));
-		ea.event = FCME_DELETE_DONE;
-		ea.fcport = sess;
-		qla2x00_fcport_event_handler(vha, &ea);
+	if ((!tgt || !tgt->tgt_stop) && !LOOP_TRANSITION(vha)) {
+		switch (vha->host->active_mode) {
+		case MODE_INITIATOR:
+		case MODE_DUAL:
+			set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
+			qla2xxx_wake_dpc(vha);
+			break;
+		case MODE_TARGET:
+		default:
+			/* no-op */
+			break;
+		}
 	}
 }
 
@@ -1104,11 +1145,20 @@ static void qlt_free_session_done(struct work_struct *work)
 void qlt_unreg_sess(struct fc_port *sess)
 {
 	struct scsi_qla_host *vha = sess->vha;
+	unsigned long flags;
 
 	ql_dbg(ql_dbg_disc, sess->vha, 0x210a,
 	    "%s sess %p for deletion %8phC\n",
 	    __func__, sess, sess->port_name);
 
+	spin_lock_irqsave(&sess->vha->work_lock, flags);
+	if (sess->free_pending) {
+		spin_unlock_irqrestore(&sess->vha->work_lock, flags);
+		return;
+	}
+	sess->free_pending = 1;
+	spin_unlock_irqrestore(&sess->vha->work_lock, flags);
+
 	if (sess->se_sess)
 		vha->hw->tgt.tgt_ops->clear_nacl_from_fcport_map(sess);
 
@@ -1175,10 +1225,10 @@ static void qla24xx_chk_fcp_state(struct fc_port *sess)
 }
 
 /* ha->tgt.sess_lock supposed to be held on entry */
-void qlt_schedule_sess_for_deletion(struct fc_port *sess,
-	bool immediate)
+void qlt_schedule_sess_for_deletion(struct fc_port *sess)
 {
 	struct qla_tgt *tgt = sess->tgt;
+	unsigned long flags;
 
 	if (sess->disc_state == DSC_DELETE_PEND)
 		return;
@@ -1194,27 +1244,28 @@ void qlt_schedule_sess_for_deletion(struct fc_port *sess,
 			return;
 	}
 
-	sess->disc_state = DSC_DELETE_PEND;
-
 	if (sess->deleted == QLA_SESS_DELETED)
 		sess->logout_on_delete = 0;
 
+	spin_lock_irqsave(&sess->vha->work_lock, flags);
+	if (sess->deleted == QLA_SESS_DELETION_IN_PROGRESS) {
+		spin_unlock_irqrestore(&sess->vha->work_lock, flags);
+		return;
+	}
 	sess->deleted = QLA_SESS_DELETION_IN_PROGRESS;
+	spin_unlock_irqrestore(&sess->vha->work_lock, flags);
+
+	sess->disc_state = DSC_DELETE_PEND;
+
 	qla24xx_chk_fcp_state(sess);
 
 	ql_dbg(ql_dbg_tgt, sess->vha, 0xe001,
 	    "Scheduling sess %p for deletion\n", sess);
 
-	schedule_work(&sess->del_work);
-}
-
-void qlt_schedule_sess_for_deletion_lock(struct fc_port *sess)
-{
-	unsigned long flags;
-	struct qla_hw_data *ha = sess->vha->hw;
-	spin_lock_irqsave(&ha->tgt.sess_lock, flags);
-	qlt_schedule_sess_for_deletion(sess, 1);
-	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
+	/* use cancel to push work element through before re-queue */
+	cancel_work_sync(&sess->del_work);
+	INIT_WORK(&sess->del_work, qla24xx_delete_sess_fn);
+	queue_work(sess->vha->hw->wq, &sess->del_work);
 }
 
 /* ha->tgt.sess_lock supposed to be held on entry */
@@ -1225,7 +1276,7 @@ static void qlt_clear_tgt_db(struct qla_tgt *tgt)
 
 	list_for_each_entry(sess, &vha->vp_fcports, list) {
 		if (sess->se_sess)
-			qlt_schedule_sess_for_deletion(sess, 1);
+			qlt_schedule_sess_for_deletion(sess);
 	}
 
 	/* At this point tgt could be already dead */
@@ -1400,7 +1451,7 @@ qlt_fc_port_deleted(struct scsi_qla_host *vha, fc_port_t *fcport, int max_gen)
 	ql_dbg(ql_dbg_tgt_mgt, vha, 0xf008, "qla_tgt_fc_port_deleted %p", sess);
 
 	sess->local = 1;
-	qlt_schedule_sess_for_deletion(sess, false);
+	qlt_schedule_sess_for_deletion(sess);
 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
 }
 
@@ -1560,8 +1611,11 @@ static void qlt_release(struct qla_tgt *tgt)
 
 	btree_destroy64(&tgt->lun_qpair_map);
 
-	if (ha->tgt.tgt_ops && ha->tgt.tgt_ops->remove_target)
-		ha->tgt.tgt_ops->remove_target(vha);
+	if (vha->vp_idx)
+		if (ha->tgt.tgt_ops &&
+		    ha->tgt.tgt_ops->remove_target &&
+		    vha->vha_tgt.target_lport_ptr)
+			ha->tgt.tgt_ops->remove_target(vha);
 
 	vha->vha_tgt.qla_tgt = NULL;
 
@@ -1976,15 +2030,10 @@ static void qlt_24xx_handle_abts(struct scsi_qla_host *vha,
 		ql_dbg(ql_dbg_tgt_mgt, vha, 0xf012,
 		    "qla_target(%d): task abort for non-existant session\n",
 		    vha->vp_idx);
-		rc = qlt_sched_sess_work(vha->vha_tgt.qla_tgt,
-		    QLA_TGT_SESS_WORK_ABORT, abts, sizeof(*abts));
-
 		spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
 
-		if (rc != 0) {
-			qlt_24xx_send_abts_resp(ha->base_qpair, abts,
-			    FCP_TMF_REJECTED, false);
-		}
+		qlt_24xx_send_abts_resp(ha->base_qpair, abts, FCP_TMF_REJECTED,
+			    false);
 		return;
 	}
 	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
@@ -2174,7 +2223,7 @@ void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *mcmd)
 			    "TM response logo %phC status %#x state %#x",
 			    mcmd->sess->port_name, mcmd->fc_tm_rsp,
 			    mcmd->flags);
-			qlt_schedule_sess_for_deletion_lock(mcmd->sess);
+			qlt_schedule_sess_for_deletion(mcmd->sess);
 		} else {
 			qlt_send_notify_ack(vha->hw->base_qpair,
 			    &mcmd->orig_iocb.imm_ntfy, 0, 0, 0, 0, 0, 0);
@@ -3708,7 +3757,7 @@ static int qlt_term_ctio_exchange(struct qla_qpair *qpair, void *ctio,
 		term = 1;
 
 	if (term)
-		qlt_term_ctio_exchange(qpair, ctio, cmd, status);
+		qlt_send_term_exchange(qpair, cmd, &cmd->atio, 1, 0);
 
 	return term;
 }
@@ -3869,7 +3918,7 @@ static void qlt_do_ctio_completion(struct scsi_qla_host *vha,
 				    "%s %d %8phC post del sess\n",
 				    __func__, __LINE__, cmd->sess->port_name);
 
-				qlt_schedule_sess_for_deletion_lock(cmd->sess);
+				qlt_schedule_sess_for_deletion(cmd->sess);
 			}
 			break;
 		}
@@ -4204,76 +4253,6 @@ static struct qla_tgt_cmd *qlt_get_tag(scsi_qla_host_t *vha,
 	return cmd;
 }
 
-static void qlt_create_sess_from_atio(struct work_struct *work)
-{
-	struct qla_tgt_sess_op *op = container_of(work,
-					struct qla_tgt_sess_op, work);
-	scsi_qla_host_t *vha = op->vha;
-	struct qla_hw_data *ha = vha->hw;
-	struct fc_port *sess;
-	struct qla_tgt_cmd *cmd;
-	unsigned long flags;
-	uint8_t *s_id = op->atio.u.isp24.fcp_hdr.s_id;
-
-	spin_lock_irqsave(&vha->cmd_list_lock, flags);
-	list_del(&op->cmd_list);
-	spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
-
-	if (op->aborted) {
-		ql_dbg(ql_dbg_tgt_mgt, vha, 0xf083,
-		    "sess_op with tag %u is aborted\n",
-		    op->atio.u.isp24.exchange_addr);
-		goto out_term;
-	}
-
-	ql_dbg(ql_dbg_tgt_mgt, vha, 0xf022,
-	    "qla_target(%d): Unable to find wwn login"
-	    " (s_id %x:%x:%x), trying to create it manually\n",
-	    vha->vp_idx, s_id[0], s_id[1], s_id[2]);
-
-	if (op->atio.u.raw.entry_count > 1) {
-		ql_dbg(ql_dbg_tgt_mgt, vha, 0xf023,
-		    "Dropping multy entry atio %p\n", &op->atio);
-		goto out_term;
-	}
-
-	sess = qlt_make_local_sess(vha, s_id);
-	/* sess has an extra creation ref. */
-
-	if (!sess)
-		goto out_term;
-	/*
-	 * Now obtain a pre-allocated session tag using the original op->atio
-	 * packet header, and dispatch into __qlt_do_work() using the existing
-	 * process context.
-	 */
-	cmd = qlt_get_tag(vha, sess, &op->atio);
-	if (!cmd) {
-		struct qla_qpair *qpair = ha->base_qpair;
-
-		spin_lock_irqsave(qpair->qp_lock_ptr, flags);
-		qlt_send_busy(qpair, &op->atio, SAM_STAT_BUSY);
-		spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
-
-		spin_lock_irqsave(&ha->tgt.sess_lock, flags);
-		ha->tgt.tgt_ops->put_sess(sess);
-		spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
-		kfree(op);
-		return;
-	}
-
-	/*
-	 * __qlt_do_work() will call qlt_put_sess() to release
-	 * the extra reference taken above by qlt_make_local_sess()
-	 */
-	__qlt_do_work(cmd);
-	kfree(op);
-	return;
-out_term:
-	qlt_send_term_exchange(vha->hw->base_qpair, NULL, &op->atio, 0, 0);
-	kfree(op);
-}
-
 /* ha->hardware_lock supposed to be held on entry */
 static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha,
 	struct atio_from_isp *atio)
@@ -4283,31 +4262,23 @@ static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha,
 	struct fc_port *sess;
 	struct qla_tgt_cmd *cmd;
 	unsigned long flags;
+	port_id_t id;
 
 	if (unlikely(tgt->tgt_stop)) {
 		ql_dbg(ql_dbg_io, vha, 0x3061,
 		    "New command while device %p is shutting down\n", tgt);
-		return -EFAULT;
+		return -ENODEV;
 	}
 
-	sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, atio->u.isp24.fcp_hdr.s_id);
-	if (unlikely(!sess)) {
-		struct qla_tgt_sess_op *op = kzalloc(sizeof(struct qla_tgt_sess_op),
-						     GFP_ATOMIC);
-		if (!op)
-			return -ENOMEM;
-
-		memcpy(&op->atio, atio, sizeof(*atio));
-		op->vha = vha;
-
-		spin_lock_irqsave(&vha->cmd_list_lock, flags);
-		list_add_tail(&op->cmd_list, &vha->qla_sess_op_cmd_list);
-		spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
+	id.b.al_pa = atio->u.isp24.fcp_hdr.s_id[2];
+	id.b.area = atio->u.isp24.fcp_hdr.s_id[1];
+	id.b.domain = atio->u.isp24.fcp_hdr.s_id[0];
+	if (IS_SW_RESV_ADDR(id))
+		return -EBUSY;
 
-		INIT_WORK(&op->work, qlt_create_sess_from_atio);
-		queue_work(qla_tgt_wq, &op->work);
-		return 0;
-	}
+	sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, atio->u.isp24.fcp_hdr.s_id);
+	if (unlikely(!sess))
+		return -EFAULT;
 
 	/* Another WWN used to have our s_id. Our PLOGI scheduled its
 	 * session deletion, but it's still in sess_del_work wq */
@@ -4336,7 +4307,7 @@ static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha,
 		spin_lock_irqsave(&ha->tgt.sess_lock, flags);
 		ha->tgt.tgt_ops->put_sess(sess);
 		spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
-		return -ENOMEM;
+		return -EBUSY;
 	}
 
 	cmd->cmd_in_wq = 1;
@@ -4417,14 +4388,11 @@ static int qlt_handle_task_mgmt(struct scsi_qla_host *vha, void *iocb)
 {
 	struct atio_from_isp *a = (struct atio_from_isp *)iocb;
 	struct qla_hw_data *ha = vha->hw;
-	struct qla_tgt *tgt;
 	struct fc_port *sess;
 	u64 unpacked_lun;
 	int fn;
 	unsigned long flags;
 
-	tgt = vha->vha_tgt.qla_tgt;
-
 	fn = a->u.isp24.fcp_cmnd.task_mgmt_flags;
 
 	spin_lock_irqsave(&ha->tgt.sess_lock, flags);
@@ -4435,15 +4403,7 @@ static int qlt_handle_task_mgmt(struct scsi_qla_host *vha, void *iocb)
 	unpacked_lun =
 	    scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
 
-	if (!sess) {
-		ql_dbg(ql_dbg_tgt_mgt, vha, 0xf024,
-		    "qla_target(%d): task mgmt fn 0x%x for "
-		    "non-existant session\n", vha->vp_idx, fn);
-		return qlt_sched_sess_work(tgt, QLA_TGT_SESS_WORK_TM, iocb,
-		    sizeof(struct atio_from_isp));
-	}
-
-	if (sess->deleted)
+	if (sess == NULL || sess->deleted)
 		return -EFAULT;
 
 	return qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0);
@@ -4574,7 +4534,7 @@ qlt_find_sess_invalidate_other(scsi_qla_host_t *vha, uint64_t wwn,
 				 * might have cleared it when requested this session
 				 * deletion, so don't touch it
 				 */
-				qlt_schedule_sess_for_deletion(other_sess, true);
+				qlt_schedule_sess_for_deletion(other_sess);
 			} else {
 				/*
 				 * Another wwn used to have our s_id/loop_id
@@ -4584,11 +4544,10 @@ qlt_find_sess_invalidate_other(scsi_qla_host_t *vha, uint64_t wwn,
 				    "Invalidating sess %p loop_id %d wwn %llx.\n",
 				    other_sess, other_sess->loop_id, other_wwn);
 
-
 				other_sess->keep_nport_handle = 1;
-				*conflict_sess = other_sess;
-				qlt_schedule_sess_for_deletion(other_sess,
-				    true);
+				if (other_sess->disc_state != DSC_DELETED)
+					*conflict_sess = other_sess;
+				qlt_schedule_sess_for_deletion(other_sess);
 			}
 			continue;
 		}
@@ -4602,7 +4561,7 @@ qlt_find_sess_invalidate_other(scsi_qla_host_t *vha, uint64_t wwn,
 
 			/* Same loop_id but different s_id
 			 * Ok to kill and logout */
-			qlt_schedule_sess_for_deletion(other_sess, true);
+			qlt_schedule_sess_for_deletion(other_sess);
 		}
 	}
 
@@ -4652,6 +4611,138 @@ static int abort_cmds_for_s_id(struct scsi_qla_host *vha, port_id_t *s_id)
 	return count;
 }
 
+static int qlt_handle_login(struct scsi_qla_host *vha,
+    struct imm_ntfy_from_isp *iocb)
+{
+	struct fc_port *sess = NULL, *conflict_sess = NULL;
+	uint64_t wwn;
+	port_id_t port_id;
+	uint16_t loop_id, wd3_lo;
+	int res = 0;
+	struct qlt_plogi_ack_t *pla;
+	unsigned long flags;
+
+	wwn = wwn_to_u64(iocb->u.isp24.port_name);
+
+	port_id.b.domain = iocb->u.isp24.port_id[2];
+	port_id.b.area   = iocb->u.isp24.port_id[1];
+	port_id.b.al_pa  = iocb->u.isp24.port_id[0];
+	port_id.b.rsvd_1 = 0;
+
+	loop_id = le16_to_cpu(iocb->u.isp24.nport_handle);
+
+	/* Mark all stale commands sitting in qla_tgt_wq for deletion */
+	abort_cmds_for_s_id(vha, &port_id);
+
+	if (wwn) {
+		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
+		sess = qlt_find_sess_invalidate_other(vha, wwn,
+		    port_id, loop_id, &conflict_sess);
+		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
+	}
+
+	if (IS_SW_RESV_ADDR(port_id)) {
+		res = 1;
+		goto out;
+	}
+
+	pla = qlt_plogi_ack_find_add(vha, &port_id, iocb);
+	if (!pla) {
+		qlt_send_term_imm_notif(vha, iocb, 1);
+		goto out;
+	}
+
+	if (conflict_sess) {
+		conflict_sess->login_gen++;
+		qlt_plogi_ack_link(vha, pla, conflict_sess,
+		    QLT_PLOGI_LINK_CONFLICT);
+	}
+
+	if (!sess) {
+		pla->ref_count++;
+		ql_dbg(ql_dbg_disc, vha, 0xffff,
+		    "%s %d %8phC post new sess\n",
+		    __func__, __LINE__, iocb->u.isp24.port_name);
+		if (iocb->u.isp24.status_subcode == ELS_PLOGI)
+			qla24xx_post_newsess_work(vha, &port_id,
+			    iocb->u.isp24.port_name,
+			    iocb->u.isp24.u.plogi.node_name,
+			    pla, FC4_TYPE_UNKNOWN);
+		else
+			qla24xx_post_newsess_work(vha, &port_id,
+			    iocb->u.isp24.port_name, NULL,
+			    pla, FC4_TYPE_UNKNOWN);
+
+		goto out;
+	}
+
+	qlt_plogi_ack_link(vha, pla, sess, QLT_PLOGI_LINK_SAME_WWN);
+	sess->d_id = port_id;
+	sess->login_gen++;
+
+	if (iocb->u.isp24.status_subcode == ELS_PRLI) {
+		sess->fw_login_state = DSC_LS_PRLI_PEND;
+		sess->local = 0;
+		sess->loop_id = loop_id;
+		sess->d_id = port_id;
+		sess->fw_login_state = DSC_LS_PRLI_PEND;
+		wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo);
+
+		if (wd3_lo & BIT_7)
+			sess->conf_compl_supported = 1;
+
+		if ((wd3_lo & BIT_4) == 0)
+			sess->port_type = FCT_INITIATOR;
+		else
+			sess->port_type = FCT_TARGET;
+
+	} else
+		sess->fw_login_state = DSC_LS_PLOGI_PEND;
+
+
+	ql_dbg(ql_dbg_disc, vha, 0x20f9,
+	    "%s %d %8phC  DS %d\n",
+	    __func__, __LINE__, sess->port_name, sess->disc_state);
+
+	switch (sess->disc_state) {
+	case DSC_DELETED:
+		qlt_plogi_ack_unref(vha, pla);
+		break;
+
+	default:
+		/*
+		 * Under normal circumstances we want to release nport handle
+		 * during LOGO process to avoid nport handle leaks inside FW.
+		 * The exception is when LOGO is done while another PLOGI with
+		 * the same nport handle is waiting as might be the case here.
+		 * Note: there is always a possibily of a race where session
+		 * deletion has already started for other reasons (e.g. ACL
+		 * removal) and now PLOGI arrives:
+		 * 1. if PLOGI arrived in FW after nport handle has been freed,
+		 *    FW must have assigned this PLOGI a new/same handle and we
+		 *    can proceed ACK'ing it as usual when session deletion
+		 *    completes.
+		 * 2. if PLOGI arrived in FW before LOGO with LCF_FREE_NPORT
+		 *    bit reached it, the handle has now been released. We'll
+		 *    get an error when we ACK this PLOGI. Nothing will be sent
+		 *    back to initiator. Initiator should eventually retry
+		 *    PLOGI and situation will correct itself.
+		 */
+		sess->keep_nport_handle = ((sess->loop_id == loop_id) &&
+		    (sess->d_id.b24 == port_id.b24));
+
+		ql_dbg(ql_dbg_disc, vha, 0x20f9,
+		    "%s %d %8phC post del sess\n",
+		    __func__, __LINE__, sess->port_name);
+
+
+		qlt_schedule_sess_for_deletion(sess);
+		break;
+	}
+out:
+	return res;
+}
+
 /*
  * ha->hardware_lock supposed to be held on entry. Might drop it, then reaquire
  */
@@ -4666,7 +4757,6 @@ static int qlt_24xx_handle_els(struct scsi_qla_host *vha,
 	uint16_t loop_id;
 	uint16_t wd3_lo;
 	int res = 0;
-	struct qlt_plogi_ack_t *pla;
 	unsigned long flags;
 
 	wwn = wwn_to_u64(iocb->u.isp24.port_name);
@@ -4690,88 +4780,32 @@ static int qlt_24xx_handle_els(struct scsi_qla_host *vha,
 	 */
 	switch (iocb->u.isp24.status_subcode) {
 	case ELS_PLOGI:
+		res = qlt_handle_login(vha, iocb);
+		break;
 
-		/* Mark all stale commands in qla_tgt_wq for deletion */
-		abort_cmds_for_s_id(vha, &port_id);
-
-		if (wwn) {
-			spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags);
-			sess = qlt_find_sess_invalidate_other(vha, wwn,
-				port_id, loop_id, &conflict_sess);
-			spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags);
-		}
-
-		if (IS_SW_RESV_ADDR(port_id)) {
-			res = 1;
-			break;
-		}
-
-		pla = qlt_plogi_ack_find_add(vha, &port_id, iocb);
-		if (!pla) {
-			qlt_send_term_imm_notif(vha, iocb, 1);
-			break;
-		}
-
-		res = 0;
+	case ELS_PRLI:
+		if (N2N_TOPO(ha)) {
+			sess = qla2x00_find_fcport_by_wwpn(vha,
+			    iocb->u.isp24.port_name, 1);
 
-		if (conflict_sess) {
-			conflict_sess->login_gen++;
-			qlt_plogi_ack_link(vha, pla, conflict_sess,
-				QLT_PLOGI_LINK_CONFLICT);
-		}
+			if (sess && sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN]) {
+				ql_dbg(ql_dbg_disc, vha, 0xffff,
+				    "%s %d %8phC Term PRLI due to PLOGI ACK not completed\n",
+				    __func__, __LINE__,
+				    iocb->u.isp24.port_name);
+				qlt_send_term_imm_notif(vha, iocb, 1);
+				break;
+			}
 
-		if (!sess) {
-			pla->ref_count++;
-			qla24xx_post_newsess_work(vha, &port_id,
-				iocb->u.isp24.port_name, pla);
-			res = 0;
+			res = qlt_handle_login(vha, iocb);
 			break;
 		}
 
-		qlt_plogi_ack_link(vha, pla, sess, QLT_PLOGI_LINK_SAME_WWN);
-		sess->fw_login_state = DSC_LS_PLOGI_PEND;
-		sess->d_id = port_id;
-		sess->login_gen++;
-
-		switch (sess->disc_state) {
-		case DSC_DELETED:
-			qlt_plogi_ack_unref(vha, pla);
-			break;
-
-		default:
-			/*
-			 * Under normal circumstances we want to release nport handle
-			 * during LOGO process to avoid nport handle leaks inside FW.
-			 * The exception is when LOGO is done while another PLOGI with
-			 * the same nport handle is waiting as might be the case here.
-			 * Note: there is always a possibily of a race where session
-			 * deletion has already started for other reasons (e.g. ACL
-			 * removal) and now PLOGI arrives:
-			 * 1. if PLOGI arrived in FW after nport handle has been freed,
-			 *    FW must have assigned this PLOGI a new/same handle and we
-			 *    can proceed ACK'ing it as usual when session deletion
-			 *    completes.
-			 * 2. if PLOGI arrived in FW before LOGO with LCF_FREE_NPORT
-			 *    bit reached it, the handle has now been released. We'll
-			 *    get an error when we ACK this PLOGI. Nothing will be sent
-			 *    back to initiator. Initiator should eventually retry
-			 *    PLOGI and situation will correct itself.
-			 */
-			sess->keep_nport_handle = ((sess->loop_id == loop_id) &&
-			   (sess->d_id.b24 == port_id.b24));
-
-			ql_dbg(ql_dbg_disc, vha, 0x20f9,
-			    "%s %d %8phC post del sess\n",
-			    __func__, __LINE__, sess->port_name);
-
-
-			qlt_schedule_sess_for_deletion_lock(sess);
+		if (IS_SW_RESV_ADDR(port_id)) {
+			res = 1;
 			break;
 		}
 
-		break;
-
-	case ELS_PRLI:
 		wd3_lo = le16_to_cpu(iocb->u.isp24.u.prli.wd3_lo);
 
 		if (wwn) {
@@ -4782,17 +4816,51 @@ static int qlt_24xx_handle_els(struct scsi_qla_host *vha,
 		}
 
 		if (conflict_sess) {
-			ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09b,
-			    "PRLI with conflicting sess %p port %8phC\n",
-			    conflict_sess, conflict_sess->port_name);
-			qlt_send_term_imm_notif(vha, iocb, 1);
-			res = 0;
-			break;
+			switch (conflict_sess->disc_state) {
+			case DSC_DELETED:
+			case DSC_DELETE_PEND:
+				break;
+			default:
+				ql_dbg(ql_dbg_tgt_mgt, vha, 0xf09b,
+				    "PRLI with conflicting sess %p port %8phC\n",
+				    conflict_sess, conflict_sess->port_name);
+				conflict_sess->fw_login_state =
+				    DSC_LS_PORT_UNAVAIL;
+				qlt_send_term_imm_notif(vha, iocb, 1);
+				res = 0;
+				break;
+			}
 		}
 
 		if (sess != NULL) {
-			if (sess->fw_login_state != DSC_LS_PLOGI_PEND &&
-			    sess->fw_login_state != DSC_LS_PLOGI_COMP) {
+			bool delete = false;
+			spin_lock_irqsave(&tgt->ha->tgt.sess_lock, flags);
+			switch (sess->fw_login_state) {
+			case DSC_LS_PLOGI_PEND:
+			case DSC_LS_PLOGI_COMP:
+			case DSC_LS_PRLI_COMP:
+				break;
+			default:
+				delete = true;
+				break;
+			}
+
+			switch (sess->disc_state) {
+			case DSC_LOGIN_PEND:
+			case DSC_GPDB:
+			case DSC_GPSC:
+			case DSC_UPD_FCPORT:
+			case DSC_LOGIN_COMPLETE:
+			case DSC_ADISC:
+				delete = false;
+				break;
+			default:
+				break;
+			}
+
+			if (delete) {
+				spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock,
+				    flags);
 				/*
 				 * Impatient initiator sent PRLI before last
 				 * PLOGI could finish. Will force him to re-try,
@@ -4803,6 +4871,8 @@ static int qlt_24xx_handle_els(struct scsi_qla_host *vha,
 				    sess);
 				qlt_send_term_imm_notif(vha, iocb, 1);
 				res = 0;
+				spin_lock_irqsave(&tgt->ha->tgt.sess_lock,
+				    flags);
 				break;
 			}
 
@@ -4826,6 +4896,8 @@ static int qlt_24xx_handle_els(struct scsi_qla_host *vha,
 				sess->port_type = FCT_INITIATOR;
 			else
 				sess->port_type = FCT_TARGET;
+
+			spin_unlock_irqrestore(&tgt->ha->tgt.sess_lock, flags);
 		}
 		res = 1; /* send notify ack */
 
@@ -4863,7 +4935,7 @@ static int qlt_24xx_handle_els(struct scsi_qla_host *vha,
 			res = 1;
 			break;
 		}
-		/* drop through */
+		/* fall through */
 	case ELS_LOGO:
 	case ELS_PRLO:
 		spin_lock_irqsave(&ha->tgt.sess_lock, flags);
@@ -4892,7 +4964,7 @@ static int qlt_24xx_handle_els(struct scsi_qla_host *vha,
 		} else {
 			/* cmd did not go to upper layer. */
 			if (sess) {
-				qlt_schedule_sess_for_deletion_lock(sess);
+				qlt_schedule_sess_for_deletion(sess);
 				res = 0;
 			}
 			/* else logo will be ack */
@@ -4930,6 +5002,10 @@ static int qlt_24xx_handle_els(struct scsi_qla_host *vha,
 		break;
 	}
 
+	ql_dbg(ql_dbg_disc, vha, 0xf026,
+	    "qla_target(%d): Exit ELS opcode: 0x%02x res %d\n",
+	    vha->vp_idx, iocb->u.isp24.status_subcode, res);
+
 	return res;
 }
 
@@ -5320,7 +5396,6 @@ qlt_chk_qfull_thresh_hold(struct scsi_qla_host *vha, struct qla_qpair *qpair,
 	struct atio_from_isp *atio, uint8_t ha_locked)
 {
 	struct qla_hw_data *ha = vha->hw;
-	uint16_t status;
 	unsigned long flags;
 
 	if (ha->tgt.num_pend_cmds < Q_FULL_THRESH_HOLD(ha))
@@ -5328,8 +5403,7 @@ qlt_chk_qfull_thresh_hold(struct scsi_qla_host *vha, struct qla_qpair *qpair,
 
 	if (!ha_locked)
 		spin_lock_irqsave(&ha->hardware_lock, flags);
-	status = temp_sam_status;
-	qlt_send_busy(qpair, atio, status);
+	qlt_send_busy(qpair, atio, qla_sam_status);
 	if (!ha_locked)
 		spin_unlock_irqrestore(&ha->hardware_lock, flags);
 
@@ -5344,7 +5418,7 @@ static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha,
 	struct qla_hw_data *ha = vha->hw;
 	struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
 	int rc;
-	unsigned long flags;
+	unsigned long flags = 0;
 
 	if (unlikely(tgt == NULL)) {
 		ql_dbg(ql_dbg_tgt, vha, 0x3064,
@@ -5368,8 +5442,7 @@ static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha,
 			    "sending QUEUE_FULL\n", vha->vp_idx);
 			if (!ha_locked)
 				spin_lock_irqsave(&ha->hardware_lock, flags);
-			qlt_send_busy(ha->base_qpair, atio,
-			    SAM_STAT_TASK_SET_FULL);
+			qlt_send_busy(ha->base_qpair, atio, qla_sam_status);
 			if (!ha_locked)
 				spin_unlock_irqrestore(&ha->hardware_lock,
 				    flags);
@@ -5388,42 +5461,37 @@ static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha,
 			rc = qlt_handle_task_mgmt(vha, atio);
 		}
 		if (unlikely(rc != 0)) {
-			if (rc == -ESRCH) {
-				if (!ha_locked)
-					spin_lock_irqsave(&ha->hardware_lock,
-					    flags);
-
-#if 1 /* With TERM EXCHANGE some FC cards refuse to boot */
-				qlt_send_busy(ha->base_qpair, atio,
-				    SAM_STAT_BUSY);
-#else
+			if (!ha_locked)
+				spin_lock_irqsave(&ha->hardware_lock, flags);
+			switch (rc) {
+			case -ENODEV:
+				ql_dbg(ql_dbg_tgt, vha, 0xe05f,
+				    "qla_target: Unable to send command to target\n");
+				break;
+			case -EBADF:
+				ql_dbg(ql_dbg_tgt, vha, 0xe05f,
+				    "qla_target: Unable to send command to target, sending TERM EXCHANGE for rsp\n");
 				qlt_send_term_exchange(ha->base_qpair, NULL,
 				    atio, 1, 0);
-#endif
-				if (!ha_locked)
-					spin_unlock_irqrestore(
-					    &ha->hardware_lock, flags);
-			} else {
-				if (tgt->tgt_stop) {
-					ql_dbg(ql_dbg_tgt, vha, 0xe059,
-					    "qla_target: Unable to send "
-					    "command to target for req, "
-					    "ignoring.\n");
-				} else {
-					ql_dbg(ql_dbg_tgt, vha, 0xe05a,
-					    "qla_target(%d): Unable to send "
-					    "command to target, sending BUSY "
-					    "status.\n", vha->vp_idx);
-					if (!ha_locked)
-						spin_lock_irqsave(
-						    &ha->hardware_lock, flags);
-					qlt_send_busy(ha->base_qpair,
-					    atio, SAM_STAT_BUSY);
-					if (!ha_locked)
-						spin_unlock_irqrestore(
-						    &ha->hardware_lock, flags);
-				}
+				break;
+			case -EBUSY:
+				ql_dbg(ql_dbg_tgt, vha, 0xe060,
+				    "qla_target(%d): Unable to send command to target, sending BUSY status\n",
+				    vha->vp_idx);
+				qlt_send_busy(ha->base_qpair, atio,
+				    tc_sam_status);
+				break;
+			default:
+				ql_dbg(ql_dbg_tgt, vha, 0xe060,
+				    "qla_target(%d): Unable to send command to target, sending BUSY status\n",
+				    vha->vp_idx);
+				qlt_send_busy(ha->base_qpair, atio,
+				    qla_sam_status);
+				break;
 			}
+			if (!ha_locked)
+				spin_unlock_irqrestore(&ha->hardware_lock,
+				    flags);
 		}
 		break;
 
@@ -5506,27 +5574,31 @@ static void qlt_response_pkt(struct scsi_qla_host *vha,
 
 		rc = qlt_handle_cmd_for_atio(vha, atio);
 		if (unlikely(rc != 0)) {
-			if (rc == -ESRCH) {
-#if 1 /* With TERM EXCHANGE some FC cards refuse to boot */
-				qlt_send_busy(rsp->qpair, atio, 0);
-#else
-				qlt_send_term_exchange(rsp->qpair, NULL, atio, 1, 0);
-#endif
-			} else {
-				if (tgt->tgt_stop) {
-					ql_dbg(ql_dbg_tgt, vha, 0xe05f,
-					    "qla_target: Unable to send "
-					    "command to target, sending TERM "
-					    "EXCHANGE for rsp\n");
-					qlt_send_term_exchange(rsp->qpair, NULL,
-					    atio, 1, 0);
-				} else {
-					ql_dbg(ql_dbg_tgt, vha, 0xe060,
-					    "qla_target(%d): Unable to send "
-					    "command to target, sending BUSY "
-					    "status\n", vha->vp_idx);
-					qlt_send_busy(rsp->qpair, atio, 0);
-				}
+			switch (rc) {
+			case -ENODEV:
+				ql_dbg(ql_dbg_tgt, vha, 0xe05f,
+				    "qla_target: Unable to send command to target\n");
+				break;
+			case -EBADF:
+				ql_dbg(ql_dbg_tgt, vha, 0xe05f,
+				    "qla_target: Unable to send command to target, sending TERM EXCHANGE for rsp\n");
+				qlt_send_term_exchange(rsp->qpair, NULL,
+				    atio, 1, 0);
+				break;
+			case -EBUSY:
+				ql_dbg(ql_dbg_tgt, vha, 0xe060,
+				    "qla_target(%d): Unable to send command to target, sending BUSY status\n",
+				    vha->vp_idx);
+				qlt_send_busy(rsp->qpair, atio,
+				    tc_sam_status);
+				break;
+			default:
+				ql_dbg(ql_dbg_tgt, vha, 0xe060,
+				    "qla_target(%d): Unable to send command to target, sending BUSY status\n",
+				    vha->vp_idx);
+				qlt_send_busy(rsp->qpair, atio,
+				    qla_sam_status);
+				break;
 			}
 		}
 	}
@@ -5755,7 +5827,7 @@ static fc_port_t *qlt_get_port_database(struct scsi_qla_host *vha,
 	unsigned long flags;
 	u8 newfcport = 0;
 
-	fcport = kzalloc(sizeof(*fcport), GFP_KERNEL);
+	fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
 	if (!fcport) {
 		ql_dbg(ql_dbg_tgt_mgt, vha, 0xf06f,
 		    "qla_target(%d): Allocation of tmp FC port failed",
@@ -5784,6 +5856,7 @@ static fc_port_t *qlt_get_port_database(struct scsi_qla_host *vha,
 		tfcp->port_type = fcport->port_type;
 		tfcp->supported_classes = fcport->supported_classes;
 		tfcp->flags |= fcport->flags;
+		tfcp->scan_state = QLA_FCPORT_FOUND;
 
 		del = fcport;
 		fcport = tfcp;
@@ -6445,18 +6518,21 @@ qlt_vport_create(struct scsi_qla_host *vha, struct qla_hw_data *ha)
 	qlt_add_target(ha, vha);
 }
 
-void
-qlt_rff_id(struct scsi_qla_host *vha, struct ct_sns_req *ct_req)
+u8
+qlt_rff_id(struct scsi_qla_host *vha)
 {
+	u8 fc4_feature = 0;
 	/*
 	 * FC-4 Feature bit 0 indicates target functionality to the name server.
 	 */
 	if (qla_tgt_mode_enabled(vha)) {
-		ct_req->req.rff_id.fc4_feature = BIT_0;
+		fc4_feature = BIT_0;
 	} else if (qla_ini_mode_enabled(vha)) {
-		ct_req->req.rff_id.fc4_feature = BIT_1;
+		fc4_feature = BIT_1;
 	} else if (qla_dual_mode_enabled(vha))
-		ct_req->req.rff_id.fc4_feature = BIT_0 | BIT_1;
+		fc4_feature = BIT_0 | BIT_1;
+
+	return fc4_feature;
 }
 
 /*
@@ -6546,7 +6622,9 @@ void
 qlt_24xx_config_rings(struct scsi_qla_host *vha)
 {
 	struct qla_hw_data *ha = vha->hw;
-	struct init_cb_24xx *icb;
+	struct qla_msix_entry *msix = &ha->msix_entries[2];
+	struct init_cb_24xx *icb = (struct init_cb_24xx *)ha->init_cb;
+
 	if (!QLA_TGT_MODE_ENABLED())
 		return;
 
@@ -6554,19 +6632,28 @@ qlt_24xx_config_rings(struct scsi_qla_host *vha)
 	WRT_REG_DWORD(ISP_ATIO_Q_OUT(vha), 0);
 	RD_REG_DWORD(ISP_ATIO_Q_OUT(vha));
 
-	icb = (struct init_cb_24xx *)ha->init_cb;
-
-	if ((ql2xenablemsix != 0) && IS_ATIO_MSIX_CAPABLE(ha)) {
-		struct qla_msix_entry *msix = &ha->msix_entries[2];
-
-		icb->msix_atio = cpu_to_le16(msix->entry);
-		ql_dbg(ql_dbg_init, vha, 0xf072,
-		    "Registering ICB vector 0x%x for atio que.\n",
-		    msix->entry);
-	} else if (ql2xenablemsix == 0) {
-		icb->firmware_options_2 |= cpu_to_le32(BIT_26);
-		ql_dbg(ql_dbg_init, vha, 0xf07f,
-		    "Registering INTx vector for ATIO.\n");
+	if (ha->flags.msix_enabled) {
+		if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
+			if (IS_QLA2071(ha)) {
+				/* 4 ports Baker: Enable Interrupt Handshake */
+				icb->msix_atio = 0;
+				icb->firmware_options_2 |= BIT_26;
+			} else {
+				icb->msix_atio = cpu_to_le16(msix->entry);
+				icb->firmware_options_2 &= ~BIT_26;
+			}
+			ql_dbg(ql_dbg_init, vha, 0xf072,
+			    "Registering ICB vector 0x%x for atio que.\n",
+			    msix->entry);
+		}
+	} else {
+		/* INTx|MSI */
+		if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
+			icb->msix_atio = 0;
+			icb->firmware_options_2 |= BIT_26;
+			ql_dbg(ql_dbg_init, vha, 0xf072,
+			    "%s: Use INTx for ATIOQ.\n", __func__);
+		}
 	}
 }
 
@@ -6574,6 +6661,7 @@ void
 qlt_24xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_24xx *nv)
 {
 	struct qla_hw_data *ha = vha->hw;
+	u32 tmp;
 
 	if (!QLA_TGT_MODE_ENABLED())
 		return;
@@ -6625,6 +6713,14 @@ qlt_24xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_24xx *nv)
 		nv->firmware_options_1 &= cpu_to_le32(~BIT_15);
 		/* Enable target PRLI control */
 		nv->firmware_options_2 |= cpu_to_le32(BIT_14);
+
+		if (IS_QLA25XX(ha)) {
+			/* Change Loop-prefer to Pt-Pt */
+			tmp = ~(BIT_4|BIT_5|BIT_6);
+			nv->firmware_options_2 &= cpu_to_le32(tmp);
+			tmp = P2P << 4;
+			nv->firmware_options_2 |= cpu_to_le32(tmp);
+		}
 	} else {
 		if (ha->tgt.saved_set) {
 			nv->exchange_count = ha->tgt.saved_exchange_count;
@@ -6679,6 +6775,7 @@ void
 qlt_81xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_81xx *nv)
 {
 	struct qla_hw_data *ha = vha->hw;
+	u32 tmp;
 
 	if (!QLA_TGT_MODE_ENABLED())
 		return;
@@ -6729,6 +6826,12 @@ qlt_81xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_81xx *nv)
 		nv->host_p &= cpu_to_le32(~BIT_10);
 		/* Enable target PRLI control */
 		nv->firmware_options_2 |= cpu_to_le32(BIT_14);
+
+		/* Change Loop-prefer to Pt-Pt */
+		tmp = ~(BIT_4|BIT_5|BIT_6);
+		nv->firmware_options_2 &= cpu_to_le32(tmp);
+		tmp = P2P << 4;
+		nv->firmware_options_2 |= cpu_to_le32(tmp);
 	} else {
 		if (ha->tgt.saved_set) {
 			nv->exchange_count = ha->tgt.saved_exchange_count;
@@ -6991,20 +7094,14 @@ qlt_update_vp_map(struct scsi_qla_host *vha, int cmd)
 
 void qlt_update_host_map(struct scsi_qla_host *vha, port_id_t id)
 {
-	unsigned long flags;
-	struct qla_hw_data *ha = vha->hw;
 
 	if (!vha->d_id.b24) {
-		spin_lock_irqsave(&ha->vport_slock, flags);
 		vha->d_id = id;
 		qlt_update_vp_map(vha, SET_AL_PA);
-		spin_unlock_irqrestore(&ha->vport_slock, flags);
 	} else if (vha->d_id.b24 != id.b24) {
-		spin_lock_irqsave(&ha->vport_slock, flags);
 		qlt_update_vp_map(vha, RESET_AL_PA);
 		vha->d_id = id;
 		qlt_update_vp_map(vha, SET_AL_PA);
-		spin_unlock_irqrestore(&ha->vport_slock, flags);
 	}
 }
 
diff --git a/drivers/scsi/qla2xxx/qla_target.h b/drivers/scsi/qla2xxx/qla_target.h
index aba58d3848a6..bb67b5a284a8 100644
--- a/drivers/scsi/qla2xxx/qla_target.h
+++ b/drivers/scsi/qla2xxx/qla_target.h
@@ -993,7 +993,7 @@ struct qla_tgt_prm {
 
 /* Check for Switch reserved address */
 #define IS_SW_RESV_ADDR(_s_id) \
-	((_s_id.b.domain == 0xff) && (_s_id.b.area == 0xfc))
+	((_s_id.b.domain == 0xff) && ((_s_id.b.area & 0xf0) == 0xf0))
 
 #define QLA_TGT_XMIT_DATA		1
 #define QLA_TGT_XMIT_STATUS		2
@@ -1072,7 +1072,7 @@ extern void qlt_free_cmd(struct qla_tgt_cmd *cmd);
 extern void qlt_async_event(uint16_t, struct scsi_qla_host *, uint16_t *);
 extern void qlt_enable_vha(struct scsi_qla_host *);
 extern void qlt_vport_create(struct scsi_qla_host *, struct qla_hw_data *);
-extern void qlt_rff_id(struct scsi_qla_host *, struct ct_sns_req *);
+extern u8 qlt_rff_id(struct scsi_qla_host *);
 extern void qlt_init_atio_q_entries(struct scsi_qla_host *);
 extern void qlt_24xx_process_atio_queue(struct scsi_qla_host *, uint8_t);
 extern void qlt_24xx_config_rings(struct scsi_qla_host *);
diff --git a/drivers/scsi/qla2xxx/qla_tmpl.c b/drivers/scsi/qla2xxx/qla_tmpl.c
index 733e8dcccf5c..731ca0d8520a 100644
--- a/drivers/scsi/qla2xxx/qla_tmpl.c
+++ b/drivers/scsi/qla2xxx/qla_tmpl.c
@@ -526,7 +526,8 @@ qla27xx_fwdt_entry_t268(struct scsi_qla_host *vha,
 {
 	ql_dbg(ql_dbg_misc, vha, 0xd20c,
 	    "%s: gethb(%x) [%lx]\n", __func__, ent->t268.buf_type, *len);
-	if (ent->t268.buf_type == T268_BUF_TYPE_EXTD_TRACE) {
+	switch (ent->t268.buf_type) {
+	case T268_BUF_TYPE_EXTD_TRACE:
 		if (vha->hw->eft) {
 			if (buf) {
 				ent->t268.buf_size = EFT_SIZE;
@@ -538,10 +539,43 @@ qla27xx_fwdt_entry_t268(struct scsi_qla_host *vha,
 			    "%s: missing eft\n", __func__);
 			qla27xx_skip_entry(ent, buf);
 		}
-	} else {
-		ql_dbg(ql_dbg_misc, vha, 0xd02b,
+		break;
+	case T268_BUF_TYPE_EXCH_BUFOFF:
+		if (vha->hw->exchoffld_buf) {
+			if (buf) {
+				ent->t268.buf_size = vha->hw->exchoffld_size;
+				ent->t268.start_addr =
+					vha->hw->exchoffld_buf_dma;
+			}
+			qla27xx_insertbuf(vha->hw->exchoffld_buf,
+			    vha->hw->exchoffld_size, buf, len);
+		} else {
+			ql_dbg(ql_dbg_misc, vha, 0xd028,
+			    "%s: missing exch offld\n", __func__);
+			qla27xx_skip_entry(ent, buf);
+		}
+		break;
+	case T268_BUF_TYPE_EXTD_LOGIN:
+		if (vha->hw->exlogin_buf) {
+			if (buf) {
+				ent->t268.buf_size = vha->hw->exlogin_size;
+				ent->t268.start_addr =
+					vha->hw->exlogin_buf_dma;
+			}
+			qla27xx_insertbuf(vha->hw->exlogin_buf,
+			    vha->hw->exlogin_size, buf, len);
+		} else {
+			ql_dbg(ql_dbg_misc, vha, 0xd028,
+			    "%s: missing ext login\n", __func__);
+			qla27xx_skip_entry(ent, buf);
+		}
+		break;
+
+	default:
+		ql_dbg(ql_dbg_async, vha, 0xd02b,
 		    "%s: unknown buffer %x\n", __func__, ent->t268.buf_type);
 		qla27xx_skip_entry(ent, buf);
+		break;
 	}
 
 	return false;
diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h
index b6ec02b96d3d..549bef9afddd 100644
--- a/drivers/scsi/qla2xxx/qla_version.h
+++ b/drivers/scsi/qla2xxx/qla_version.h
@@ -7,7 +7,7 @@
 /*
  * Driver version
  */
-#define QLA2XXX_VERSION      "10.00.00.02-k"
+#define QLA2XXX_VERSION      "10.00.00.05-k"
 
 #define QLA_DRIVER_MAJOR_VER	10
 #define QLA_DRIVER_MINOR_VER	0
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
index 3f82ea1b72dc..aadfeaac3898 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
@@ -1635,16 +1635,13 @@ static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport)
 		return rc;
 	}
 
-	lport->lport_loopid_map = vmalloc(sizeof(struct tcm_qla2xxx_fc_loopid) *
-				65536);
+	lport->lport_loopid_map = vzalloc(sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
 	if (!lport->lport_loopid_map) {
 		pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n",
 		    sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
 		btree_destroy32(&lport->lport_fcport_map);
 		return -ENOMEM;
 	}
-	memset(lport->lport_loopid_map, 0, sizeof(struct tcm_qla2xxx_fc_loopid)
-	       * 65536);
 	pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n",
 	       sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
 	return 0;
diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c
index 5d6d158bbfd6..52b1a0bc93c9 100644
--- a/drivers/scsi/qla4xxx/ql4_init.c
+++ b/drivers/scsi/qla4xxx/ql4_init.c
@@ -153,15 +153,14 @@ int qla4xxx_get_sys_info(struct scsi_qla_host *ha)
 	dma_addr_t sys_info_dma;
 	int status = QLA_ERROR;
 
-	sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
-				      &sys_info_dma, GFP_KERNEL);
+	sys_info = dma_zalloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
+				       &sys_info_dma, GFP_KERNEL);
 	if (sys_info == NULL) {
 		DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
 			      ha->host_no, __func__));
 
 		goto exit_get_sys_info_no_free;
 	}
-	memset(sys_info, 0, sizeof(*sys_info));
 
 	/* Get flash sys info */
 	if (qla4xxx_get_flash(ha, sys_info_dma, FLASH_OFFSET_SYS_INFO,
diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c
index 1da04f323d38..bda2e64ee5ca 100644
--- a/drivers/scsi/qla4xxx/ql4_mbx.c
+++ b/drivers/scsi/qla4xxx/ql4_mbx.c
@@ -625,15 +625,14 @@ int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha)
 	uint32_t mbox_sts[MBOX_REG_COUNT];
 	int status = QLA_ERROR;
 
-	init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
-					sizeof(struct addr_ctrl_blk),
-					&init_fw_cb_dma, GFP_KERNEL);
+	init_fw_cb = dma_zalloc_coherent(&ha->pdev->dev,
+					 sizeof(struct addr_ctrl_blk),
+					 &init_fw_cb_dma, GFP_KERNEL);
 	if (init_fw_cb == NULL) {
 		DEBUG2(printk("scsi%ld: %s: Unable to alloc init_cb\n",
 			      ha->host_no, __func__));
 		goto exit_init_fw_cb_no_free;
 	}
-	memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
 
 	/* Get Initialize Firmware Control Block. */
 	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
@@ -710,9 +709,9 @@ int qla4xxx_get_dhcp_ip_address(struct scsi_qla_host * ha)
 	uint32_t mbox_cmd[MBOX_REG_COUNT];
 	uint32_t mbox_sts[MBOX_REG_COUNT];
 
-	init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
-					sizeof(struct addr_ctrl_blk),
-					&init_fw_cb_dma, GFP_KERNEL);
+	init_fw_cb = dma_zalloc_coherent(&ha->pdev->dev,
+					 sizeof(struct addr_ctrl_blk),
+					 &init_fw_cb_dma, GFP_KERNEL);
 	if (init_fw_cb == NULL) {
 		printk("scsi%ld: %s: Unable to alloc init_cb\n", ha->host_no,
 		       __func__);
@@ -720,7 +719,6 @@ int qla4xxx_get_dhcp_ip_address(struct scsi_qla_host * ha)
 	}
 
 	/* Get Initialize Firmware Control Block. */
-	memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
 	if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma) !=
 	    QLA_SUCCESS) {
 		DEBUG2(printk("scsi%ld: %s: Failed to get init_fw_ctrl_blk\n",
@@ -1342,16 +1340,15 @@ int qla4xxx_about_firmware(struct scsi_qla_host *ha)
 	uint32_t mbox_sts[MBOX_REG_COUNT];
 	int status = QLA_ERROR;
 
-	about_fw = dma_alloc_coherent(&ha->pdev->dev,
-				      sizeof(struct about_fw_info),
-				      &about_fw_dma, GFP_KERNEL);
+	about_fw = dma_zalloc_coherent(&ha->pdev->dev,
+				       sizeof(struct about_fw_info),
+				       &about_fw_dma, GFP_KERNEL);
 	if (!about_fw) {
 		DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Unable to alloc memory "
 				  "for about_fw\n", __func__));
 		return status;
 	}
 
-	memset(about_fw, 0, sizeof(struct about_fw_info));
 	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 	memset(&mbox_sts, 0, sizeof(mbox_sts));
 
diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c
index e91abb327745..968bd85610f8 100644
--- a/drivers/scsi/qla4xxx/ql4_nx.c
+++ b/drivers/scsi/qla4xxx/ql4_nx.c
@@ -4050,15 +4050,14 @@ int qla4_8xxx_get_sys_info(struct scsi_qla_host *ha)
 	dma_addr_t sys_info_dma;
 	int status = QLA_ERROR;
 
-	sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
-				      &sys_info_dma, GFP_KERNEL);
+	sys_info = dma_zalloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
+				       &sys_info_dma, GFP_KERNEL);
 	if (sys_info == NULL) {
 		DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
 		    ha->host_no, __func__));
 		return status;
 	}
 
-	memset(sys_info, 0, sizeof(*sys_info));
 	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 	memset(&mbox_sts, 0, sizeof(mbox_sts));
 
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 2b8a8ce2a431..82e889bbe0ed 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -2689,16 +2689,15 @@ qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len)
 	uint32_t rem = len;
 	struct nlattr *attr;
 
-	init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
-					sizeof(struct addr_ctrl_blk),
-					&init_fw_cb_dma, GFP_KERNEL);
+	init_fw_cb = dma_zalloc_coherent(&ha->pdev->dev,
+					 sizeof(struct addr_ctrl_blk),
+					 &init_fw_cb_dma, GFP_KERNEL);
 	if (!init_fw_cb) {
 		ql4_printk(KERN_ERR, ha, "%s: Unable to alloc init_cb\n",
 			   __func__);
 		return -ENOMEM;
 	}
 
-	memset(init_fw_cb, 0, sizeof(struct addr_ctrl_blk));
 	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
 	memset(&mbox_sts, 0, sizeof(mbox_sts));
 
@@ -4196,15 +4195,14 @@ static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
 			  sizeof(struct shadow_regs) +
 			  MEM_ALIGN_VALUE +
 			  (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
-	ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len,
-					&ha->queues_dma, GFP_KERNEL);
+	ha->queues = dma_zalloc_coherent(&ha->pdev->dev, ha->queues_len,
+					 &ha->queues_dma, GFP_KERNEL);
 	if (ha->queues == NULL) {
 		ql4_printk(KERN_WARNING, ha,
 		    "Memory Allocation failed - queues.\n");
 
 		goto mem_alloc_error_exit;
 	}
-	memset(ha->queues, 0, ha->queues_len);
 
 	/*
 	 * As per RISC alignment requirements -- the bus-address must be a
diff --git a/drivers/scsi/scsi_common.c b/drivers/scsi/scsi_common.c
index 40bc616cf8ab..90349498f686 100644
--- a/drivers/scsi/scsi_common.c
+++ b/drivers/scsi/scsi_common.c
@@ -12,7 +12,7 @@
 
 /* NB: These are exposed through /proc/scsi/scsi and form part of the ABI.
  * You may not alter any existing entry (although adding new ones is
- * encouraged once assigned by ANSI/INCITS T10
+ * encouraged once assigned by ANSI/INCITS T10).
  */
 static const char *const scsi_device_types[] = {
 	"Direct-Access    ",
@@ -39,7 +39,7 @@ static const char *const scsi_device_types[] = {
 };
 
 /**
- * scsi_device_type - Return 17 char string indicating device type.
+ * scsi_device_type - Return 17-char string indicating device type.
  * @type: type number to look up
  */
 const char *scsi_device_type(unsigned type)
@@ -59,7 +59,7 @@ EXPORT_SYMBOL(scsi_device_type);
  * @scsilun:	struct scsi_lun to be converted.
  *
  * Description:
- *     Convert @scsilun from a struct scsi_lun to a four byte host byte-ordered
+ *     Convert @scsilun from a struct scsi_lun to a four-byte host byte-ordered
  *     integer, and return the result. The caller must check for
  *     truncation before using this function.
  *
@@ -98,7 +98,7 @@ EXPORT_SYMBOL(scsilun_to_int);
  *     back into the lun value.
  *
  * Notes:
- *     Given an integer : 0x0b03d204,  this function returns a
+ *     Given an integer : 0x0b03d204, this function returns a
  *     struct scsi_lun of: d2 04 0b 03 00 00 00 00
  *
  */
@@ -221,7 +221,7 @@ EXPORT_SYMBOL(scsi_sense_desc_find);
 
 /**
  * scsi_build_sense_buffer - build sense data in a buffer
- * @desc:	Sense format (non zero == descriptor format,
+ * @desc:	Sense format (non-zero == descriptor format,
  *              0 == fixed format)
  * @buf:	Where to build sense data
  * @key:	Sense key
@@ -255,7 +255,7 @@ EXPORT_SYMBOL(scsi_build_sense_buffer);
  * @info:	64-bit information value to be set
  *
  * Return value:
- *	0 on success or EINVAL for invalid sense buffer length
+ *	0 on success or -EINVAL for invalid sense buffer length
  **/
 int scsi_set_sense_information(u8 *buf, int buf_len, u64 info)
 {
@@ -305,7 +305,7 @@ EXPORT_SYMBOL(scsi_set_sense_information);
  * @cd:		command/data bit
  *
  * Return value:
- *	0 on success or EINVAL for invalid sense buffer length
+ *	0 on success or -EINVAL for invalid sense buffer length
  */
 int scsi_set_sense_field_pointer(u8 *buf, int buf_len, u16 fp, u8 bp, bool cd)
 {
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index e4f037f0f38b..a5986dae9020 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -6,7 +6,7 @@
  *  anything out of the ordinary is seen.
  * ^^^^^^^^^^^^^^^^^^^^^^^ Original ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  *
- * Copyright (C) 2001 - 2016 Douglas Gilbert
+ * Copyright (C) 2001 - 2017 Douglas Gilbert
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -61,8 +61,8 @@
 #include "scsi_logging.h"
 
 /* make sure inq_product_rev string corresponds to this version */
-#define SDEBUG_VERSION "1.86"
-static const char *sdebug_version_date = "20160430";
+#define SDEBUG_VERSION "0187"	/* format to fit INQUIRY revision field */
+static const char *sdebug_version_date = "20171202";
 
 #define MY_NAME "scsi_debug"
 
@@ -93,6 +93,7 @@ static const char *sdebug_version_date = "20160430";
 #define MISCOMPARE_VERIFY_ASC 0x1d
 #define MICROCODE_CHANGED_ASCQ 0x1	/* with TARGET_CHANGED_ASC */
 #define MICROCODE_CHANGED_WO_RESET_ASCQ 0x16
+#define WRITE_ERROR_ASC 0xc
 
 /* Additional Sense Code Qualifier (ASCQ) */
 #define ACK_NAK_TO 0x3
@@ -105,6 +106,7 @@ static const char *sdebug_version_date = "20160430";
  * (id 0) containing 1 logical unit (lun 0). That is 1 device.
  */
 #define DEF_ATO 1
+#define DEF_CDB_LEN 10
 #define DEF_JDELAY   1		/* if > 0 unit is a jiffy */
 #define DEF_DEV_SIZE_MB   8
 #define DEF_DIF 0
@@ -161,12 +163,14 @@ static const char *sdebug_version_date = "20160430";
 #define SDEBUG_OPT_N_WCE		0x1000
 #define SDEBUG_OPT_RESET_NOISE		0x2000
 #define SDEBUG_OPT_NO_CDB_NOISE		0x4000
+#define SDEBUG_OPT_HOST_BUSY		0x8000
 #define SDEBUG_OPT_ALL_NOISE (SDEBUG_OPT_NOISE | SDEBUG_OPT_Q_NOISE | \
 			      SDEBUG_OPT_RESET_NOISE)
 #define SDEBUG_OPT_ALL_INJECTING (SDEBUG_OPT_RECOVERED_ERR | \
 				  SDEBUG_OPT_TRANSPORT_ERR | \
 				  SDEBUG_OPT_DIF_ERR | SDEBUG_OPT_DIX_ERR | \
-				  SDEBUG_OPT_SHORT_TRANSFER)
+				  SDEBUG_OPT_SHORT_TRANSFER | \
+				  SDEBUG_OPT_HOST_BUSY)
 /* When "every_nth" > 0 then modulo "every_nth" commands:
  *   - a missing response is simulated if SDEBUG_OPT_TIMEOUT is set
  *   - a RECOVERED_ERROR is simulated on successful read and write
@@ -232,7 +236,7 @@ static const char *sdebug_version_date = "20160430";
 #define F_M_ACCESS		0x800	/* media access */
 
 #define FF_RESPOND (F_RL_WLUN_OK | F_SKIP_UA | F_DELAY_OVERR)
-#define FF_DIRECT_IO (F_M_ACCESS | F_FAKE_RW)
+#define FF_MEDIA_IO (F_M_ACCESS | F_FAKE_RW)
 #define FF_SA (F_SA_HIGH | F_SA_LOW)
 
 #define SDEBUG_MAX_PARTS 4
@@ -263,12 +267,18 @@ struct sdebug_host_info {
 #define to_sdebug_host(d)	\
 	container_of(d, struct sdebug_host_info, dev)
 
+enum sdeb_defer_type {SDEB_DEFER_NONE = 0, SDEB_DEFER_HRT = 1,
+		      SDEB_DEFER_WQ = 2};
+
 struct sdebug_defer {
 	struct hrtimer hrt;
 	struct execute_work ew;
 	int sqa_idx;	/* index of sdebug_queue array */
 	int qc_idx;	/* index of sdebug_queued_cmd array within sqa_idx */
 	int issuing_cpu;
+	bool init_hrt;
+	bool init_wq;
+	enum sdeb_defer_type defer_t;
 };
 
 struct sdebug_queued_cmd {
@@ -282,6 +292,7 @@ struct sdebug_queued_cmd {
 	unsigned int inj_dif:1;
 	unsigned int inj_dix:1;
 	unsigned int inj_short:1;
+	unsigned int inj_host_busy:1;
 };
 
 struct sdebug_queue {
@@ -304,8 +315,8 @@ struct opcode_info_t {
 	u32 flags;		/* OR-ed set of SDEB_F_* */
 	int (*pfp)(struct scsi_cmnd *, struct sdebug_dev_info *);
 	const struct opcode_info_t *arrp;  /* num_attached elements or NULL */
-	u8 len_mask[16];	/* len=len_mask[0], then mask for cdb[1]... */
-				/* ignore cdb bytes after position 15 */
+	u8 len_mask[16];	/* len_mask[0]-->cdb_len, then mask for cdb */
+				/* 1 to min(cdb_len, 15); ignore cdb[15...] */
 };
 
 /* SCSI opcodes (first byte of cdb) of interest mapped onto these indexes */
@@ -322,12 +333,12 @@ enum sdeb_opcode_index {
 	SDEB_I_READ = 9,		/* 6, 10, 12, 16 */
 	SDEB_I_WRITE = 10,		/* 6, 10, 12, 16 */
 	SDEB_I_START_STOP = 11,
-	SDEB_I_SERV_ACT_IN = 12,	/* 12, 16 */
-	SDEB_I_SERV_ACT_OUT = 13,	/* 12, 16 */
+	SDEB_I_SERV_ACT_IN_16 = 12,	/* add ...SERV_ACT_IN_12 if needed */
+	SDEB_I_SERV_ACT_OUT_16 = 13,	/* add ...SERV_ACT_OUT_12 if needed */
 	SDEB_I_MAINT_IN = 14,
 	SDEB_I_MAINT_OUT = 15,
 	SDEB_I_VERIFY = 16,		/* 10 only */
-	SDEB_I_VARIABLE_LEN = 17,
+	SDEB_I_VARIABLE_LEN = 17,	/* READ(32), WRITE(32), WR_SCAT(32) */
 	SDEB_I_RESERVE = 18,		/* 6, 10 */
 	SDEB_I_RELEASE = 19,		/* 6, 10 */
 	SDEB_I_ALLOW_REMOVAL = 20,	/* PREVENT ALLOW MEDIUM REMOVAL */
@@ -340,7 +351,7 @@ enum sdeb_opcode_index {
 	SDEB_I_WRITE_SAME = 27,		/* 10, 16 */
 	SDEB_I_SYNC_CACHE = 28,		/* 10 only */
 	SDEB_I_COMP_WRITE = 29,
-	SDEB_I_LAST_ELEMENT = 30,	/* keep this last */
+	SDEB_I_LAST_ELEMENT = 30,	/* keep this last (previous + 1) */
 };
 
 
@@ -372,12 +383,12 @@ static const unsigned char opcode_ind_arr[256] = {
 	0, 0, 0, 0, 0, SDEB_I_ATA_PT, 0, 0,
 	SDEB_I_READ, SDEB_I_COMP_WRITE, SDEB_I_WRITE, 0, 0, 0, 0, 0,
 	0, 0, 0, SDEB_I_WRITE_SAME, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, SDEB_I_SERV_ACT_IN, SDEB_I_SERV_ACT_OUT,
+	0, 0, 0, 0, 0, 0, SDEB_I_SERV_ACT_IN_16, SDEB_I_SERV_ACT_OUT_16,
 /* 0xa0; 0xa0->0xbf: 12 byte cdbs */
 	SDEB_I_REPORT_LUNS, SDEB_I_ATA_PT, 0, SDEB_I_MAINT_IN,
 	     SDEB_I_MAINT_OUT, 0, 0, 0,
-	SDEB_I_READ, SDEB_I_SERV_ACT_OUT, SDEB_I_WRITE, SDEB_I_SERV_ACT_IN,
-	     0, 0, 0, 0,
+	SDEB_I_READ, 0 /* SDEB_I_SERV_ACT_OUT_12 */, SDEB_I_WRITE,
+	     0 /* SDEB_I_SERV_ACT_IN_12 */, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0,
 /* 0xc0; 0xc0->0xff: vendor specific */
@@ -396,6 +407,7 @@ static int resp_log_sense(struct scsi_cmnd *, struct sdebug_dev_info *);
 static int resp_readcap(struct scsi_cmnd *, struct sdebug_dev_info *);
 static int resp_read_dt0(struct scsi_cmnd *, struct sdebug_dev_info *);
 static int resp_write_dt0(struct scsi_cmnd *, struct sdebug_dev_info *);
+static int resp_write_scat(struct scsi_cmnd *, struct sdebug_dev_info *);
 static int resp_start_stop(struct scsi_cmnd *, struct sdebug_dev_info *);
 static int resp_readcap16(struct scsi_cmnd *, struct sdebug_dev_info *);
 static int resp_get_lba_status(struct scsi_cmnd *, struct sdebug_dev_info *);
@@ -409,72 +421,81 @@ static int resp_xdwriteread_10(struct scsi_cmnd *, struct sdebug_dev_info *);
 static int resp_comp_write(struct scsi_cmnd *, struct sdebug_dev_info *);
 static int resp_write_buffer(struct scsi_cmnd *, struct sdebug_dev_info *);
 
-static const struct opcode_info_t msense_iarr[1] = {
+/*
+ * The following are overflow arrays for cdbs that "hit" the same index in
+ * the opcode_info_arr array. The most time sensitive (or commonly used) cdb
+ * should be placed in opcode_info_arr[], the others should be placed here.
+ */
+static const struct opcode_info_t msense_iarr[] = {
 	{0, 0x1a, 0, F_D_IN, NULL, NULL,
 	    {6,  0xe8, 0xff, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
 };
 
-static const struct opcode_info_t mselect_iarr[1] = {
+static const struct opcode_info_t mselect_iarr[] = {
 	{0, 0x15, 0, F_D_OUT, NULL, NULL,
 	    {6,  0xf1, 0, 0, 0xff, 0xc7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
 };
 
-static const struct opcode_info_t read_iarr[3] = {
-	{0, 0x28, 0, F_D_IN | FF_DIRECT_IO, resp_read_dt0, NULL,/* READ(10) */
-	    {10,  0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, 0xff, 0xff, 0xc7, 0, 0,
+static const struct opcode_info_t read_iarr[] = {
+	{0, 0x28, 0, F_D_IN | FF_MEDIA_IO, resp_read_dt0, NULL,/* READ(10) */
+	    {10,  0xff, 0xff, 0xff, 0xff, 0xff, 0x3f, 0xff, 0xff, 0xc7, 0, 0,
 	     0, 0, 0, 0} },
-	{0, 0x8, 0, F_D_IN | FF_DIRECT_IO, resp_read_dt0, NULL, /* READ(6) */
+	{0, 0x8, 0, F_D_IN | FF_MEDIA_IO, resp_read_dt0, NULL, /* READ(6) */
 	    {6,  0xff, 0xff, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
-	{0, 0xa8, 0, F_D_IN | FF_DIRECT_IO, resp_read_dt0, NULL,/* READ(12) */
-	    {12,  0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x9f,
+	{0, 0xa8, 0, F_D_IN | FF_MEDIA_IO, resp_read_dt0, NULL,/* READ(12) */
+	    {12,  0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xbf,
 	     0xc7, 0, 0, 0, 0} },
 };
 
-static const struct opcode_info_t write_iarr[3] = {
-	{0, 0x2a, 0, F_D_OUT | FF_DIRECT_IO, resp_write_dt0, NULL,   /* 10 */
-	    {10,  0xfb, 0xff, 0xff, 0xff, 0xff, 0x1f, 0xff, 0xff, 0xc7, 0, 0,
-	     0, 0, 0, 0} },
-	{0, 0xa, 0, F_D_OUT | FF_DIRECT_IO, resp_write_dt0, NULL,    /* 6 */
-	    {6,  0xff, 0xff, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
-	{0, 0xaa, 0, F_D_OUT | FF_DIRECT_IO, resp_write_dt0, NULL,   /* 12 */
-	    {12,  0xfb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x9f,
-	     0xc7, 0, 0, 0, 0} },
+static const struct opcode_info_t write_iarr[] = {
+	{0, 0x2a, 0, F_D_OUT | FF_MEDIA_IO, resp_write_dt0,  /* WRITE(10) */
+	    NULL, {10,  0xfb, 0xff, 0xff, 0xff, 0xff, 0x3f, 0xff, 0xff, 0xc7,
+		   0, 0, 0, 0, 0, 0} },
+	{0, 0xa, 0, F_D_OUT | FF_MEDIA_IO, resp_write_dt0,   /* WRITE(6) */
+	    NULL, {6,  0xff, 0xff, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0, 0, 0,
+		   0, 0, 0} },
+	{0, 0xaa, 0, F_D_OUT | FF_MEDIA_IO, resp_write_dt0,  /* WRITE(12) */
+	    NULL, {12,  0xfb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+		   0xbf, 0xc7, 0, 0, 0, 0} },
 };
 
-static const struct opcode_info_t sa_in_iarr[1] = {
+static const struct opcode_info_t sa_in_16_iarr[] = {
 	{0, 0x9e, 0x12, F_SA_LOW | F_D_IN, resp_get_lba_status, NULL,
 	    {16,  0x12, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-	     0xff, 0xff, 0xff, 0, 0xc7} },
+	     0xff, 0xff, 0xff, 0, 0xc7} },	/* GET LBA STATUS(16) */
 };
 
-static const struct opcode_info_t vl_iarr[1] = {	/* VARIABLE LENGTH */
-	{0, 0x7f, 0xb, F_SA_HIGH | F_D_OUT | FF_DIRECT_IO, resp_write_dt0,
-	    NULL, {32,  0xc7, 0, 0, 0, 0, 0x1f, 0x18, 0x0, 0xb, 0xfa,
+static const struct opcode_info_t vl_iarr[] = {	/* VARIABLE LENGTH */
+	{0, 0x7f, 0xb, F_SA_HIGH | F_D_OUT | FF_MEDIA_IO, resp_write_dt0,
+	    NULL, {32,  0xc7, 0, 0, 0, 0, 0x3f, 0x18, 0x0, 0xb, 0xfa,
 		   0, 0xff, 0xff, 0xff, 0xff} },	/* WRITE(32) */
+	{0, 0x7f, 0x11, F_SA_HIGH | F_D_OUT | FF_MEDIA_IO, resp_write_scat,
+	    NULL, {32,  0xc7, 0, 0, 0, 0, 0x3f, 0x18, 0x0, 0x11, 0xf8,
+		   0, 0xff, 0xff, 0x0, 0x0} },	/* WRITE SCATTERED(32) */
 };
 
-static const struct opcode_info_t maint_in_iarr[2] = {
+static const struct opcode_info_t maint_in_iarr[] = {	/* MAINT IN */
 	{0, 0xa3, 0xc, F_SA_LOW | F_D_IN, resp_rsup_opcodes, NULL,
 	    {12,  0xc, 0x87, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0,
-	     0xc7, 0, 0, 0, 0} },
+	     0xc7, 0, 0, 0, 0} }, /* REPORT SUPPORTED OPERATION CODES */
 	{0, 0xa3, 0xd, F_SA_LOW | F_D_IN, resp_rsup_tmfs, NULL,
 	    {12,  0xd, 0x80, 0, 0, 0, 0xff, 0xff, 0xff, 0xff, 0, 0xc7, 0, 0,
-	     0, 0} },
+	     0, 0} },	/* REPORTED SUPPORTED TASK MANAGEMENT FUNCTIONS */
 };
 
-static const struct opcode_info_t write_same_iarr[1] = {
-	{0, 0x93, 0, F_D_OUT_MAYBE | FF_DIRECT_IO, resp_write_same_16, NULL,
+static const struct opcode_info_t write_same_iarr[] = {
+	{0, 0x93, 0, F_D_OUT_MAYBE | FF_MEDIA_IO, resp_write_same_16, NULL,
 	    {16,  0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-	     0xff, 0xff, 0xff, 0x1f, 0xc7} },
+	     0xff, 0xff, 0xff, 0x3f, 0xc7} },		/* WRITE SAME(16) */
 };
 
-static const struct opcode_info_t reserve_iarr[1] = {
-	{0, 0x16, 0, F_D_OUT, NULL, NULL,	/* RESERVE(6) */
+static const struct opcode_info_t reserve_iarr[] = {
+	{0, 0x16, 0, F_D_OUT, NULL, NULL,		/* RESERVE(6) */
 	    {6,  0x1f, 0xff, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
 };
 
-static const struct opcode_info_t release_iarr[1] = {
-	{0, 0x17, 0, F_D_OUT, NULL, NULL,	/* RELEASE(6) */
+static const struct opcode_info_t release_iarr[] = {
+	{0, 0x17, 0, F_D_OUT, NULL, NULL,		/* RELEASE(6) */
 	    {6,  0x1f, 0xff, 0, 0, 0xc7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
 };
 
@@ -484,57 +505,67 @@ static const struct opcode_info_t release_iarr[1] = {
  * REPORT SUPPORTED OPERATION CODES. */
 static const struct opcode_info_t opcode_info_arr[SDEB_I_LAST_ELEMENT + 1] = {
 /* 0 */
-	{0, 0, 0, F_INV_OP | FF_RESPOND, NULL, NULL,
+	{0, 0, 0, F_INV_OP | FF_RESPOND, NULL, NULL,	/* unknown opcodes */
 	    {0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
-	{0, 0x12, 0, FF_RESPOND | F_D_IN, resp_inquiry, NULL,
+	{0, 0x12, 0, FF_RESPOND | F_D_IN, resp_inquiry, NULL, /* INQUIRY */
 	    {6,  0xe3, 0xff, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
 	{0, 0xa0, 0, FF_RESPOND | F_D_IN, resp_report_luns, NULL,
 	    {12,  0xe3, 0xff, 0, 0, 0, 0xff, 0xff, 0xff, 0xff, 0, 0xc7, 0, 0,
-	     0, 0} },
+	     0, 0} },					/* REPORT LUNS */
 	{0, 0x3, 0, FF_RESPOND | F_D_IN, resp_requests, NULL,
 	    {6,  0xe1, 0, 0, 0xff, 0xc7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
 	{0, 0x0, 0, F_M_ACCESS | F_RL_WLUN_OK, NULL, NULL,/* TEST UNIT READY */
 	    {6,  0, 0, 0, 0, 0xc7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
-	{1, 0x5a, 0, F_D_IN, resp_mode_sense, msense_iarr,
-	    {10,  0xf8, 0xff, 0xff, 0, 0, 0, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0,
-	     0} },
-	{1, 0x55, 0, F_D_OUT, resp_mode_select, mselect_iarr,
-	    {10,  0xf1, 0, 0, 0, 0, 0, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0, 0} },
-	{0, 0x4d, 0, F_D_IN, resp_log_sense, NULL,
+/* 5 */
+	{ARRAY_SIZE(msense_iarr), 0x5a, 0, F_D_IN,	/* MODE SENSE(10) */
+	    resp_mode_sense, msense_iarr, {10,  0xf8, 0xff, 0xff, 0, 0, 0,
+		0xff, 0xff, 0xc7, 0, 0, 0, 0, 0, 0} },
+	{ARRAY_SIZE(mselect_iarr), 0x55, 0, F_D_OUT,	/* MODE SELECT(10) */
+	    resp_mode_select, mselect_iarr, {10,  0xf1, 0, 0, 0, 0, 0, 0xff,
+		0xff, 0xc7, 0, 0, 0, 0, 0, 0} },
+	{0, 0x4d, 0, F_D_IN, resp_log_sense, NULL,	/* LOG SENSE */
 	    {10,  0xe3, 0xff, 0xff, 0, 0xff, 0xff, 0xff, 0xff, 0xc7, 0, 0, 0,
 	     0, 0, 0} },
-	{0, 0x25, 0, F_D_IN, resp_readcap, NULL,
+	{0, 0x25, 0, F_D_IN, resp_readcap, NULL,    /* READ CAPACITY(10) */
 	    {10,  0xe1, 0xff, 0xff, 0xff, 0xff, 0, 0, 0x1, 0xc7, 0, 0, 0, 0,
 	     0, 0} },
-	{3, 0x88, 0, F_D_IN | FF_DIRECT_IO, resp_read_dt0, read_iarr,
-	    {16,  0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-	     0xff, 0xff, 0xff, 0x9f, 0xc7} },		/* READ(16) */
+	{ARRAY_SIZE(read_iarr), 0x88, 0, F_D_IN | FF_MEDIA_IO, /* READ(16) */
+	    resp_read_dt0, read_iarr, {16,  0xfe, 0xff, 0xff, 0xff, 0xff,
+	    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc7} },
 /* 10 */
-	{3, 0x8a, 0, F_D_OUT | FF_DIRECT_IO, resp_write_dt0, write_iarr,
-	    {16,  0xfa, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-	     0xff, 0xff, 0xff, 0x9f, 0xc7} },		/* WRITE(16) */
+	{ARRAY_SIZE(write_iarr), 0x8a, 0, F_D_OUT | FF_MEDIA_IO,
+	    resp_write_dt0, write_iarr,			/* WRITE(16) */
+		{16,  0xfa, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+		 0xff, 0xff, 0xff, 0xff, 0xff, 0xc7} },		/* WRITE(16) */
 	{0, 0x1b, 0, 0, resp_start_stop, NULL,		/* START STOP UNIT */
 	    {6,  0x1, 0, 0xf, 0xf7, 0xc7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
-	{1, 0x9e, 0x10, F_SA_LOW | F_D_IN, resp_readcap16, sa_in_iarr,
-	    {16,  0x10, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-	     0xff, 0xff, 0xff, 0x1, 0xc7} },	/* READ CAPACITY(16) */
-	{0, 0, 0, F_INV_OP | FF_RESPOND, NULL, NULL, /* SA OUT */
-	    {0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
-	{2, 0xa3, 0xa, F_SA_LOW | F_D_IN, resp_report_tgtpgs, maint_in_iarr,
-	    {12,  0xea, 0, 0, 0, 0, 0xff, 0xff, 0xff, 0xff, 0, 0xc7, 0, 0, 0,
-	     0} },
+	{ARRAY_SIZE(sa_in_16_iarr), 0x9e, 0x10, F_SA_LOW | F_D_IN,
+	    resp_readcap16, sa_in_16_iarr, /* SA_IN(16), READ CAPACITY(16) */
+		{16,  0x10, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+		 0xff, 0xff, 0xff, 0xff, 0x1, 0xc7} },
+	{0, 0x9f, 0x12, F_SA_LOW | F_D_OUT | FF_MEDIA_IO, resp_write_scat,
+	    NULL, {16,  0x12, 0xf9, 0x0, 0xff, 0xff, 0, 0, 0xff, 0xff, 0xff,
+	    0xff, 0xff, 0xff, 0xff, 0xc7} },  /* SA_OUT(16), WRITE SCAT(16) */
+	{ARRAY_SIZE(maint_in_iarr), 0xa3, 0xa, F_SA_LOW | F_D_IN,
+	    resp_report_tgtpgs,	/* MAINT IN, REPORT TARGET PORT GROUPS */
+		maint_in_iarr, {12,  0xea, 0, 0, 0, 0, 0xff, 0xff, 0xff,
+				0xff, 0, 0xc7, 0, 0, 0, 0} },
+/* 15 */
 	{0, 0, 0, F_INV_OP | FF_RESPOND, NULL, NULL, /* MAINT OUT */
 	    {0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
-	{0, 0x2f, 0, F_D_OUT_MAYBE | FF_DIRECT_IO, NULL, NULL, /* VERIFY(10) */
+	{0, 0x2f, 0, F_D_OUT_MAYBE | FF_MEDIA_IO, NULL, NULL, /* VERIFY(10) */
 	    {10,  0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc7,
 	     0, 0, 0, 0, 0, 0} },
-	{1, 0x7f, 0x9, F_SA_HIGH | F_D_IN | FF_DIRECT_IO, resp_read_dt0,
-	    vl_iarr, {32,  0xc7, 0, 0, 0, 0, 0x1f, 0x18, 0x0, 0x9, 0xfe, 0,
-		      0xff, 0xff, 0xff, 0xff} },/* VARIABLE LENGTH, READ(32) */
-	{1, 0x56, 0, F_D_OUT, NULL, reserve_iarr, /* RESERVE(10) */
+	{ARRAY_SIZE(vl_iarr), 0x7f, 0x9, F_SA_HIGH | F_D_IN | FF_MEDIA_IO,
+	    resp_read_dt0, vl_iarr,	/* VARIABLE LENGTH, READ(32) */
+	    {32,  0xc7, 0, 0, 0, 0, 0x3f, 0x18, 0x0, 0x9, 0xfe, 0, 0xff, 0xff,
+	     0xff, 0xff} },
+	{ARRAY_SIZE(reserve_iarr), 0x56, 0, F_D_OUT,
+	    NULL, reserve_iarr,	/* RESERVE(10) <no response function> */
 	    {10,  0xff, 0xff, 0xff, 0, 0, 0, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0,
 	     0} },
-	{1, 0x57, 0, F_D_OUT, NULL, release_iarr, /* RELEASE(10) */
+	{ARRAY_SIZE(release_iarr), 0x57, 0, F_D_OUT,
+	    NULL, release_iarr, /* RELEASE(10) <no response function> */
 	    {10,  0x13, 0xff, 0xff, 0, 0, 0, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0,
 	     0} },
 /* 20 */
@@ -546,23 +577,25 @@ static const struct opcode_info_t opcode_info_arr[SDEB_I_LAST_ELEMENT + 1] = {
 	    {0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
 	{0, 0x1d, F_D_OUT, 0, NULL, NULL,	/* SEND DIAGNOSTIC */
 	    {6,  0xf7, 0, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
-	{0, 0x42, 0, F_D_OUT | FF_DIRECT_IO, resp_unmap, NULL, /* UNMAP */
-	    {10,  0x1, 0, 0, 0, 0, 0x1f, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0, 0} },
-	{0, 0x53, 0, F_D_IN | F_D_OUT | FF_DIRECT_IO, resp_xdwriteread_10,
-	    NULL, {10,  0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, 0xff, 0xff, 0xc7,
-		   0, 0, 0, 0, 0, 0} },
+	{0, 0x42, 0, F_D_OUT | FF_MEDIA_IO, resp_unmap, NULL, /* UNMAP */
+	    {10,  0x1, 0, 0, 0, 0, 0x3f, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0, 0} },
+/* 25 */
+	{0, 0x53, 0, F_D_IN | F_D_OUT | FF_MEDIA_IO, resp_xdwriteread_10,
+	    NULL, {10,  0xff, 0xff, 0xff, 0xff, 0xff, 0x3f, 0xff, 0xff, 0xc7,
+		   0, 0, 0, 0, 0, 0} },		/* XDWRITEREAD(10) */
 	{0, 0x3b, 0, F_D_OUT_MAYBE, resp_write_buffer, NULL,
 	    {10,  0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc7, 0, 0,
 	     0, 0, 0, 0} },			/* WRITE_BUFFER */
-	{1, 0x41, 0, F_D_OUT_MAYBE | FF_DIRECT_IO, resp_write_same_10,
-	    write_same_iarr, {10,  0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, 0xff,
-			      0xff, 0xc7, 0, 0, 0, 0, 0, 0} },
-	{0, 0x35, 0, F_DELAY_OVERR | FF_DIRECT_IO, NULL, NULL, /* SYNC_CACHE */
-	    {10,  0x7, 0xff, 0xff, 0xff, 0xff, 0x1f, 0xff, 0xff, 0xc7, 0, 0,
+	{ARRAY_SIZE(write_same_iarr), 0x41, 0, F_D_OUT_MAYBE | FF_MEDIA_IO,
+	    resp_write_same_10, write_same_iarr,	/* WRITE SAME(10) */
+		{10,  0xff, 0xff, 0xff, 0xff, 0xff, 0x3f, 0xff, 0xff, 0xc7, 0,
+		 0, 0, 0, 0, 0} },
+	{0, 0x35, 0, F_DELAY_OVERR | FF_MEDIA_IO, NULL, NULL, /* SYNC_CACHE */
+	    {10,  0x7, 0xff, 0xff, 0xff, 0xff, 0x3f, 0xff, 0xff, 0xc7, 0, 0,
 	     0, 0, 0, 0} },
-	{0, 0x89, 0, F_D_OUT | FF_DIRECT_IO, resp_comp_write, NULL,
+	{0, 0x89, 0, F_D_OUT | FF_MEDIA_IO, resp_comp_write, NULL,
 	    {16,  0xf8, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0,
-	     0, 0xff, 0x1f, 0xc7} },		/* COMPARE AND WRITE */
+	     0, 0xff, 0x3f, 0xc7} },		/* COMPARE AND WRITE */
 
 /* 30 */
 	{0xff, 0, 0, 0, NULL, NULL,		/* terminating element */
@@ -571,6 +604,7 @@ static const struct opcode_info_t opcode_info_arr[SDEB_I_LAST_ELEMENT + 1] = {
 
 static int sdebug_add_host = DEF_NUM_HOST;
 static int sdebug_ato = DEF_ATO;
+static int sdebug_cdb_len = DEF_CDB_LEN;
 static int sdebug_jdelay = DEF_JDELAY;	/* if > 0 then unit is jiffies */
 static int sdebug_dev_size_mb = DEF_DEV_SIZE_MB;
 static int sdebug_dif = DEF_DIF;
@@ -797,6 +831,61 @@ static int scsi_debug_ioctl(struct scsi_device *dev, int cmd, void __user *arg)
 	/* return -ENOTTY; // correct return but upsets fdisk */
 }
 
+static void config_cdb_len(struct scsi_device *sdev)
+{
+	switch (sdebug_cdb_len) {
+	case 6:	/* suggest 6 byte READ, WRITE and MODE SENSE/SELECT */
+		sdev->use_10_for_rw = false;
+		sdev->use_16_for_rw = false;
+		sdev->use_10_for_ms = false;
+		break;
+	case 10: /* suggest 10 byte RWs and 6 byte MODE SENSE/SELECT */
+		sdev->use_10_for_rw = true;
+		sdev->use_16_for_rw = false;
+		sdev->use_10_for_ms = false;
+		break;
+	case 12: /* suggest 10 byte RWs and 10 byte MODE SENSE/SELECT */
+		sdev->use_10_for_rw = true;
+		sdev->use_16_for_rw = false;
+		sdev->use_10_for_ms = true;
+		break;
+	case 16:
+		sdev->use_10_for_rw = false;
+		sdev->use_16_for_rw = true;
+		sdev->use_10_for_ms = true;
+		break;
+	case 32: /* No knobs to suggest this so same as 16 for now */
+		sdev->use_10_for_rw = false;
+		sdev->use_16_for_rw = true;
+		sdev->use_10_for_ms = true;
+		break;
+	default:
+		pr_warn("unexpected cdb_len=%d, force to 10\n",
+			sdebug_cdb_len);
+		sdev->use_10_for_rw = true;
+		sdev->use_16_for_rw = false;
+		sdev->use_10_for_ms = false;
+		sdebug_cdb_len = 10;
+		break;
+	}
+}
+
+static void all_config_cdb_len(void)
+{
+	struct sdebug_host_info *sdbg_host;
+	struct Scsi_Host *shost;
+	struct scsi_device *sdev;
+
+	spin_lock(&sdebug_host_list_lock);
+	list_for_each_entry(sdbg_host, &sdebug_host_list, host_list) {
+		shost = sdbg_host->shost;
+		shost_for_each_device(sdev, shost) {
+			config_cdb_len(sdev);
+		}
+	}
+	spin_unlock(&sdebug_host_list_lock);
+}
+
 static void clear_luns_changed_on_target(struct sdebug_dev_info *devip)
 {
 	struct sdebug_host_info *sdhp;
@@ -955,7 +1044,7 @@ static int fetch_to_dev_buffer(struct scsi_cmnd *scp, unsigned char *arr,
 
 static char sdebug_inq_vendor_id[9] = "Linux   ";
 static char sdebug_inq_product_id[17] = "scsi_debug      ";
-static char sdebug_inq_product_rev[5] = "0186";	/* version less '.' */
+static char sdebug_inq_product_rev[5] = SDEBUG_VERSION;
 /* Use some locally assigned NAAs for SAS addresses. */
 static const u64 naa3_comp_a = 0x3222222000000000ULL;
 static const u64 naa3_comp_b = 0x3333333000000000ULL;
@@ -1411,6 +1500,8 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
 	memcpy(&arr[8], sdebug_inq_vendor_id, 8);
 	memcpy(&arr[16], sdebug_inq_product_id, 16);
 	memcpy(&arr[32], sdebug_inq_product_rev, 4);
+	/* Use Vendor Specific area to place driver date in ASCII hex */
+	memcpy(&arr[36], sdebug_version_date, 8);
 	/* version descriptors (2 bytes each) follow */
 	put_unaligned_be16(0xc0, arr + 58);   /* SAM-6 no version claimed */
 	put_unaligned_be16(0x5c0, arr + 60);  /* SPC-5 no version claimed */
@@ -1900,7 +1991,7 @@ static unsigned char ctrl_m_pg[] = {0xa, 10, 2, 0, 0, 0, 0, 0,
 static int resp_ctrl_m_pg(unsigned char * p, int pcontrol, int target)
 { 	/* Control mode page for mode_sense */
 	unsigned char ch_ctrl_m_pg[] = {/* 0xa, 10, */ 0x6, 0, 0, 0, 0, 0,
-				        0, 0, 0, 0};
+					0, 0, 0, 0};
 	unsigned char d_ctrl_m_pg[] = {0xa, 10, 2, 0, 0, 0, 0, 0,
 				     0, 0, 0x2, 0x4b};
 
@@ -2077,13 +2168,13 @@ static int resp_mode_sense(struct scsi_cmnd *scp,
 		len = resp_disconnect_pg(ap, pcontrol, target);
 		offset += len;
 		break;
-        case 0x3:       /* Format device page, direct access */
+	case 0x3:       /* Format device page, direct access */
 		if (is_disk) {
 			len = resp_format_pg(ap, pcontrol, target);
 			offset += len;
 		} else
 			bad_pcode = true;
-                break;
+		break;
 	case 0x8:	/* Caching page, direct access */
 		if (is_disk) {
 			len = resp_caching_pg(ap, pcontrol, target);
@@ -2099,7 +2190,7 @@ static int resp_mode_sense(struct scsi_cmnd *scp,
 		if ((subpcode > 0x2) && (subpcode < 0xff)) {
 			mk_sense_invalid_fld(scp, SDEB_IN_CDB, 3, -1);
 			return check_condition_result;
-	        }
+		}
 		len = 0;
 		if ((0x0 == subpcode) || (0xff == subpcode))
 			len += resp_sas_sf_m_pg(ap + len, pcontrol, target);
@@ -2136,7 +2227,7 @@ static int resp_mode_sense(struct scsi_cmnd *scp,
 		} else {
 			mk_sense_invalid_fld(scp, SDEB_IN_CDB, 3, -1);
 			return check_condition_result;
-                }
+		}
 		break;
 	default:
 		bad_pcode = true;
@@ -2172,8 +2263,8 @@ static int resp_mode_select(struct scsi_cmnd *scp,
 		mk_sense_invalid_fld(scp, SDEB_IN_CDB, mselect6 ? 4 : 7, -1);
 		return check_condition_result;
 	}
-        res = fetch_to_dev_buffer(scp, arr, param_len);
-        if (-1 == res)
+	res = fetch_to_dev_buffer(scp, arr, param_len);
+	if (-1 == res)
 		return DID_ERROR << 16;
 	else if (sdebug_verbose && (res < param_len))
 		sdev_printk(KERN_INFO, scp->device,
@@ -2239,8 +2330,8 @@ static int resp_temp_l_pg(unsigned char * arr)
 				     0x0, 0x1, 0x3, 0x2, 0x0, 65,
 		};
 
-        memcpy(arr, temp_l_pg, sizeof(temp_l_pg));
-        return sizeof(temp_l_pg);
+	memcpy(arr, temp_l_pg, sizeof(temp_l_pg));
+	return sizeof(temp_l_pg);
 }
 
 static int resp_ie_l_pg(unsigned char * arr)
@@ -2248,18 +2339,18 @@ static int resp_ie_l_pg(unsigned char * arr)
 	unsigned char ie_l_pg[] = {0x0, 0x0, 0x3, 0x3, 0x0, 0x0, 38,
 		};
 
-        memcpy(arr, ie_l_pg, sizeof(ie_l_pg));
+	memcpy(arr, ie_l_pg, sizeof(ie_l_pg));
 	if (iec_m_pg[2] & 0x4) {	/* TEST bit set */
 		arr[4] = THRESHOLD_EXCEEDED;
 		arr[5] = 0xff;
 	}
-        return sizeof(ie_l_pg);
+	return sizeof(ie_l_pg);
 }
 
 #define SDEBUG_MAX_LSENSE_SZ 512
 
-static int resp_log_sense(struct scsi_cmnd * scp,
-                          struct sdebug_dev_info * devip)
+static int resp_log_sense(struct scsi_cmnd *scp,
+			  struct sdebug_dev_info *devip)
 {
 	int ppc, sp, pcode, subpcode, alloc_len, len, n;
 	unsigned char arr[SDEBUG_MAX_LSENSE_SZ];
@@ -2353,8 +2444,8 @@ static int check_device_access_params(struct scsi_cmnd *scp,
 }
 
 /* Returns number of bytes copied or -1 if error. */
-static int do_device_access(struct scsi_cmnd *scmd, u64 lba, u32 num,
-			    bool do_write)
+static int do_device_access(struct scsi_cmnd *scmd, u32 sg_skip, u64 lba,
+			    u32 num, bool do_write)
 {
 	int ret;
 	u64 block, rest = 0;
@@ -2380,14 +2471,15 @@ static int do_device_access(struct scsi_cmnd *scmd, u64 lba, u32 num,
 
 	ret = sg_copy_buffer(sdb->table.sgl, sdb->table.nents,
 		   fake_storep + (block * sdebug_sector_size),
-		   (num - rest) * sdebug_sector_size, 0, do_write);
+		   (num - rest) * sdebug_sector_size, sg_skip, do_write);
 	if (ret != (num - rest) * sdebug_sector_size)
 		return ret;
 
 	if (rest) {
 		ret += sg_copy_buffer(sdb->table.sgl, sdb->table.nents,
 			    fake_storep, rest * sdebug_sector_size,
-			    (num - rest) * sdebug_sector_size, do_write);
+			    sg_skip + ((num - rest) * sdebug_sector_size),
+			    do_write);
 	}
 
 	return ret;
@@ -2648,7 +2740,7 @@ static int resp_read_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
 		}
 	}
 
-	ret = do_device_access(scp, lba, num, false);
+	ret = do_device_access(scp, 0, lba, num, false);
 	read_unlock_irqrestore(&atomic_rw, iflags);
 	if (unlikely(ret == -1))
 		return DID_ERROR << 16;
@@ -2936,7 +3028,7 @@ static int resp_write_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
 		}
 	}
 
-	ret = do_device_access(scp, lba, num, true);
+	ret = do_device_access(scp, 0, lba, num, true);
 	if (unlikely(scsi_debug_lbp()))
 		map_region(lba, num);
 	write_unlock_irqrestore(&atomic_rw, iflags);
@@ -2970,6 +3062,173 @@ static int resp_write_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
 	return 0;
 }
 
+/*
+ * T10 has only specified WRITE SCATTERED(16) and WRITE SCATTERED(32).
+ * No READ GATHERED yet (requires bidi or long cdb holding gather list).
+ */
+static int resp_write_scat(struct scsi_cmnd *scp,
+			   struct sdebug_dev_info *devip)
+{
+	u8 *cmd = scp->cmnd;
+	u8 *lrdp = NULL;
+	u8 *up;
+	u8 wrprotect;
+	u16 lbdof, num_lrd, k;
+	u32 num, num_by, bt_len, lbdof_blen, sg_off, cum_lb;
+	u32 lb_size = sdebug_sector_size;
+	u32 ei_lba;
+	u64 lba;
+	unsigned long iflags;
+	int ret, res;
+	bool is_16;
+	static const u32 lrd_size = 32; /* + parameter list header size */
+
+	if (cmd[0] == VARIABLE_LENGTH_CMD) {
+		is_16 = false;
+		wrprotect = (cmd[10] >> 5) & 0x7;
+		lbdof = get_unaligned_be16(cmd + 12);
+		num_lrd = get_unaligned_be16(cmd + 16);
+		bt_len = get_unaligned_be32(cmd + 28);
+	} else {        /* that leaves WRITE SCATTERED(16) */
+		is_16 = true;
+		wrprotect = (cmd[2] >> 5) & 0x7;
+		lbdof = get_unaligned_be16(cmd + 4);
+		num_lrd = get_unaligned_be16(cmd + 8);
+		bt_len = get_unaligned_be32(cmd + 10);
+		if (unlikely(have_dif_prot)) {
+			if (sdebug_dif == T10_PI_TYPE2_PROTECTION &&
+			    wrprotect) {
+				mk_sense_invalid_opcode(scp);
+				return illegal_condition_result;
+			}
+			if ((sdebug_dif == T10_PI_TYPE1_PROTECTION ||
+			     sdebug_dif == T10_PI_TYPE3_PROTECTION) &&
+			     wrprotect == 0)
+				sdev_printk(KERN_ERR, scp->device,
+					    "Unprotected WR to DIF device\n");
+		}
+	}
+	if ((num_lrd == 0) || (bt_len == 0))
+		return 0;       /* T10 says these do-nothings are not errors */
+	if (lbdof == 0) {
+		if (sdebug_verbose)
+			sdev_printk(KERN_INFO, scp->device,
+				"%s: %s: LB Data Offset field bad\n",
+				my_name, __func__);
+		mk_sense_buffer(scp, ILLEGAL_REQUEST, INVALID_FIELD_IN_CDB, 0);
+		return illegal_condition_result;
+	}
+	lbdof_blen = lbdof * lb_size;
+	if ((lrd_size + (num_lrd * lrd_size)) > lbdof_blen) {
+		if (sdebug_verbose)
+			sdev_printk(KERN_INFO, scp->device,
+				"%s: %s: LBA range descriptors don't fit\n",
+				my_name, __func__);
+		mk_sense_buffer(scp, ILLEGAL_REQUEST, INVALID_FIELD_IN_CDB, 0);
+		return illegal_condition_result;
+	}
+	lrdp = kzalloc(lbdof_blen, GFP_ATOMIC);
+	if (lrdp == NULL)
+		return SCSI_MLQUEUE_HOST_BUSY;
+	if (sdebug_verbose)
+		sdev_printk(KERN_INFO, scp->device,
+			"%s: %s: Fetch header+scatter_list, lbdof_blen=%u\n",
+			my_name, __func__, lbdof_blen);
+	res = fetch_to_dev_buffer(scp, lrdp, lbdof_blen);
+	if (res == -1) {
+		ret = DID_ERROR << 16;
+		goto err_out;
+	}
+
+	write_lock_irqsave(&atomic_rw, iflags);
+	sg_off = lbdof_blen;
+	/* Spec says Buffer xfer Length field in number of LBs in dout */
+	cum_lb = 0;
+	for (k = 0, up = lrdp + lrd_size; k < num_lrd; ++k, up += lrd_size) {
+		lba = get_unaligned_be64(up + 0);
+		num = get_unaligned_be32(up + 8);
+		if (sdebug_verbose)
+			sdev_printk(KERN_INFO, scp->device,
+				"%s: %s: k=%d  LBA=0x%llx num=%u  sg_off=%u\n",
+				my_name, __func__, k, lba, num, sg_off);
+		if (num == 0)
+			continue;
+		ret = check_device_access_params(scp, lba, num);
+		if (ret)
+			goto err_out_unlock;
+		num_by = num * lb_size;
+		ei_lba = is_16 ? 0 : get_unaligned_be32(up + 12);
+
+		if ((cum_lb + num) > bt_len) {
+			if (sdebug_verbose)
+				sdev_printk(KERN_INFO, scp->device,
+				    "%s: %s: sum of blocks > data provided\n",
+				    my_name, __func__);
+			mk_sense_buffer(scp, ILLEGAL_REQUEST, WRITE_ERROR_ASC,
+					0);
+			ret = illegal_condition_result;
+			goto err_out_unlock;
+		}
+
+		/* DIX + T10 DIF */
+		if (unlikely(sdebug_dix && scsi_prot_sg_count(scp))) {
+			int prot_ret = prot_verify_write(scp, lba, num,
+							 ei_lba);
+
+			if (prot_ret) {
+				mk_sense_buffer(scp, ILLEGAL_REQUEST, 0x10,
+						prot_ret);
+				ret = illegal_condition_result;
+				goto err_out_unlock;
+			}
+		}
+
+		ret = do_device_access(scp, sg_off, lba, num, true);
+		if (unlikely(scsi_debug_lbp()))
+			map_region(lba, num);
+		if (unlikely(-1 == ret)) {
+			ret = DID_ERROR << 16;
+			goto err_out_unlock;
+		} else if (unlikely(sdebug_verbose && (ret < num_by)))
+			sdev_printk(KERN_INFO, scp->device,
+			    "%s: write: cdb indicated=%u, IO sent=%d bytes\n",
+			    my_name, num_by, ret);
+
+		if (unlikely(sdebug_any_injecting_opt)) {
+			struct sdebug_queued_cmd *sqcp =
+				(struct sdebug_queued_cmd *)scp->host_scribble;
+
+			if (sqcp) {
+				if (sqcp->inj_recovered) {
+					mk_sense_buffer(scp, RECOVERED_ERROR,
+							THRESHOLD_EXCEEDED, 0);
+					ret = illegal_condition_result;
+					goto err_out_unlock;
+				} else if (sqcp->inj_dif) {
+					/* Logical block guard check failed */
+					mk_sense_buffer(scp, ABORTED_COMMAND,
+							0x10, 1);
+					ret = illegal_condition_result;
+					goto err_out_unlock;
+				} else if (sqcp->inj_dix) {
+					mk_sense_buffer(scp, ILLEGAL_REQUEST,
+							0x10, 1);
+					ret = illegal_condition_result;
+					goto err_out_unlock;
+				}
+			}
+		}
+		sg_off += num_by;
+		cum_lb += num;
+	}
+	ret = 0;
+err_out_unlock:
+	write_unlock_irqrestore(&atomic_rw, iflags);
+err_out:
+	kfree(lrdp);
+	return ret;
+}
+
 static int resp_write_same(struct scsi_cmnd *scp, u64 lba, u32 num,
 			   u32 ei_lba, bool unmap, bool ndob)
 {
@@ -3177,7 +3436,7 @@ static int resp_comp_write(struct scsi_cmnd *scp,
 	 * from data-in into arr. Safe (atomic) since write_lock held. */
 	fake_storep_hold = fake_storep;
 	fake_storep = arr;
-	ret = do_device_access(scp, 0, dnum, true);
+	ret = do_device_access(scp, 0, 0, dnum, true);
 	fake_storep = fake_storep_hold;
 	if (ret == -1) {
 		retval = DID_ERROR << 16;
@@ -3495,6 +3754,7 @@ static void sdebug_q_cmd_complete(struct sdebug_defer *sd_dp)
 	struct scsi_cmnd *scp;
 	struct sdebug_dev_info *devip;
 
+	sd_dp->defer_t = SDEB_DEFER_NONE;
 	qc_idx = sd_dp->qc_idx;
 	sqp = sdebug_q_arr + sd_dp->sqa_idx;
 	if (sdebug_statistics) {
@@ -3603,12 +3863,12 @@ static struct sdebug_dev_info *find_build_dev_info(struct scsi_device *sdev)
 	if (!sdbg_host) {
 		pr_err("Host info NULL\n");
 		return NULL;
-        }
+	}
 	list_for_each_entry(devip, &sdbg_host->dev_info_list, dev_list) {
 		if ((devip->used) && (devip->channel == sdev->channel) &&
-                    (devip->target == sdev->id) &&
-                    (devip->lun == sdev->lun))
-                        return devip;
+		    (devip->target == sdev->id) &&
+		    (devip->lun == sdev->lun))
+			return devip;
 		else {
 			if ((!devip->used) && (!open_devip))
 				open_devip = devip;
@@ -3660,6 +3920,7 @@ static int scsi_debug_slave_configure(struct scsi_device *sdp)
 	blk_queue_max_segment_size(sdp->request_queue, -1U);
 	if (sdebug_no_uld)
 		sdp->no_uld_attach = 1;
+	config_cdb_len(sdp);
 	return 0;
 }
 
@@ -3678,13 +3939,14 @@ static void scsi_debug_slave_destroy(struct scsi_device *sdp)
 	}
 }
 
-static void stop_qc_helper(struct sdebug_defer *sd_dp)
+static void stop_qc_helper(struct sdebug_defer *sd_dp,
+			   enum sdeb_defer_type defer_t)
 {
 	if (!sd_dp)
 		return;
-	if ((sdebug_jdelay > 0) || (sdebug_ndelay > 0))
+	if (defer_t == SDEB_DEFER_HRT)
 		hrtimer_cancel(&sd_dp->hrt);
-	else if (sdebug_jdelay < 0)
+	else if (defer_t == SDEB_DEFER_WQ)
 		cancel_work_sync(&sd_dp->ew.work);
 }
 
@@ -3694,6 +3956,7 @@ static bool stop_queued_cmnd(struct scsi_cmnd *cmnd)
 {
 	unsigned long iflags;
 	int j, k, qmax, r_qmax;
+	enum sdeb_defer_type l_defer_t;
 	struct sdebug_queue *sqp;
 	struct sdebug_queued_cmd *sqcp;
 	struct sdebug_dev_info *devip;
@@ -3717,8 +3980,13 @@ static bool stop_queued_cmnd(struct scsi_cmnd *cmnd)
 					atomic_dec(&devip->num_in_q);
 				sqcp->a_cmnd = NULL;
 				sd_dp = sqcp->sd_dp;
+				if (sd_dp) {
+					l_defer_t = sd_dp->defer_t;
+					sd_dp->defer_t = SDEB_DEFER_NONE;
+				} else
+					l_defer_t = SDEB_DEFER_NONE;
 				spin_unlock_irqrestore(&sqp->qc_lock, iflags);
-				stop_qc_helper(sd_dp);
+				stop_qc_helper(sd_dp, l_defer_t);
 				clear_bit(k, sqp->in_use_bm);
 				return true;
 			}
@@ -3733,6 +4001,7 @@ static void stop_all_queued(void)
 {
 	unsigned long iflags;
 	int j, k;
+	enum sdeb_defer_type l_defer_t;
 	struct sdebug_queue *sqp;
 	struct sdebug_queued_cmd *sqcp;
 	struct sdebug_dev_info *devip;
@@ -3751,8 +4020,13 @@ static void stop_all_queued(void)
 					atomic_dec(&devip->num_in_q);
 				sqcp->a_cmnd = NULL;
 				sd_dp = sqcp->sd_dp;
+				if (sd_dp) {
+					l_defer_t = sd_dp->defer_t;
+					sd_dp->defer_t = SDEB_DEFER_NONE;
+				} else
+					l_defer_t = SDEB_DEFER_NONE;
 				spin_unlock_irqrestore(&sqp->qc_lock, iflags);
-				stop_qc_helper(sd_dp);
+				stop_qc_helper(sd_dp, l_defer_t);
 				clear_bit(k, sqp->in_use_bm);
 				spin_lock_irqsave(&sqp->qc_lock, iflags);
 			}
@@ -3848,8 +4122,8 @@ static int scsi_debug_bus_reset(struct scsi_cmnd * SCpnt)
 {
 	struct sdebug_host_info *sdbg_host;
 	struct sdebug_dev_info *devip;
-        struct scsi_device * sdp;
-        struct Scsi_Host * hp;
+	struct scsi_device *sdp;
+	struct Scsi_Host *hp;
 	int k = 0;
 
 	++num_bus_resets;
@@ -3863,7 +4137,7 @@ static int scsi_debug_bus_reset(struct scsi_cmnd * SCpnt)
 		sdbg_host = *(struct sdebug_host_info **)shost_priv(hp);
 		if (sdbg_host) {
 			list_for_each_entry(devip,
-                                            &sdbg_host->dev_info_list,
+					    &sdbg_host->dev_info_list,
 					    dev_list) {
 				set_bit(SDEBUG_UA_BUS_RESET, devip->uas_bm);
 				++k;
@@ -3886,15 +4160,15 @@ static int scsi_debug_host_reset(struct scsi_cmnd * SCpnt)
 	++num_host_resets;
 	if ((SCpnt->device) && (SDEBUG_OPT_ALL_NOISE & sdebug_opts))
 		sdev_printk(KERN_INFO, SCpnt->device, "%s\n", __func__);
-        spin_lock(&sdebug_host_list_lock);
-        list_for_each_entry(sdbg_host, &sdebug_host_list, host_list) {
+	spin_lock(&sdebug_host_list_lock);
+	list_for_each_entry(sdbg_host, &sdebug_host_list, host_list) {
 		list_for_each_entry(devip, &sdbg_host->dev_info_list,
 				    dev_list) {
 			set_bit(SDEBUG_UA_BUS_RESET, devip->uas_bm);
 			++k;
 		}
-        }
-        spin_unlock(&sdebug_host_list_lock);
+	}
+	spin_unlock(&sdebug_host_list_lock);
 	stop_all_queued();
 	if (SDEBUG_OPT_RESET_NOISE & sdebug_opts)
 		sdev_printk(KERN_INFO, SCpnt->device,
@@ -3921,7 +4195,7 @@ static void __init sdebug_build_parts(unsigned char *ramp,
 	sectors_per_part = (num_sectors - sdebug_sectors_per)
 			   / sdebug_num_parts;
 	heads_by_sects = sdebug_heads * sdebug_sectors_per;
-        starts[0] = sdebug_sectors_per;
+	starts[0] = sdebug_sectors_per;
 	for (k = 1; k < sdebug_num_parts; ++k)
 		starts[k] = ((k * sectors_per_part) / heads_by_sects)
 			    * heads_by_sects;
@@ -3995,6 +4269,7 @@ static void setup_inject(struct sdebug_queue *sqp,
 	sqcp->inj_dif = !!(SDEBUG_OPT_DIF_ERR & sdebug_opts);
 	sqcp->inj_dix = !!(SDEBUG_OPT_DIX_ERR & sdebug_opts);
 	sqcp->inj_short = !!(SDEBUG_OPT_SHORT_TRANSFER & sdebug_opts);
+	sqcp->inj_host_busy = !!(SDEBUG_OPT_HOST_BUSY & sdebug_opts);
 }
 
 /* Complete the processing of the thread that queued a SCSI command to this
@@ -4003,7 +4278,7 @@ static void setup_inject(struct sdebug_queue *sqp,
  * SCSI_MLQUEUE_HOST_BUSY if temporarily out of resources.
  */
 static int schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip,
-			 int scsi_result, int delta_jiff)
+			 int scsi_result, int delta_jiff, int ndelay)
 {
 	unsigned long iflags;
 	int k, num_in_q, qdepth, inject;
@@ -4081,20 +4356,20 @@ static int schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip,
 	spin_unlock_irqrestore(&sqp->qc_lock, iflags);
 	if (unlikely(sdebug_every_nth && sdebug_any_injecting_opt))
 		setup_inject(sqp, sqcp);
-	if (delta_jiff > 0 || sdebug_ndelay > 0) {
+	if (sd_dp == NULL) {
+		sd_dp = kzalloc(sizeof(*sd_dp), GFP_ATOMIC);
+		if (sd_dp == NULL)
+			return SCSI_MLQUEUE_HOST_BUSY;
+	}
+	if (delta_jiff > 0 || ndelay > 0) {
 		ktime_t kt;
 
 		if (delta_jiff > 0) {
-			struct timespec ts;
-
-			jiffies_to_timespec(delta_jiff, &ts);
-			kt = ktime_set(ts.tv_sec, ts.tv_nsec);
+			kt = ns_to_ktime((u64)delta_jiff * (NSEC_PER_SEC / HZ));
 		} else
-			kt = sdebug_ndelay;
-		if (NULL == sd_dp) {
-			sd_dp = kzalloc(sizeof(*sd_dp), GFP_ATOMIC);
-			if (NULL == sd_dp)
-				return SCSI_MLQUEUE_HOST_BUSY;
+			kt = ndelay;
+		if (!sd_dp->init_hrt) {
+			sd_dp->init_hrt = true;
 			sqcp->sd_dp = sd_dp;
 			hrtimer_init(&sd_dp->hrt, CLOCK_MONOTONIC,
 				     HRTIMER_MODE_REL_PINNED);
@@ -4104,12 +4379,11 @@ static int schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip,
 		}
 		if (sdebug_statistics)
 			sd_dp->issuing_cpu = raw_smp_processor_id();
+		sd_dp->defer_t = SDEB_DEFER_HRT;
 		hrtimer_start(&sd_dp->hrt, kt, HRTIMER_MODE_REL_PINNED);
 	} else {	/* jdelay < 0, use work queue */
-		if (NULL == sd_dp) {
-			sd_dp = kzalloc(sizeof(*sqcp->sd_dp), GFP_ATOMIC);
-			if (NULL == sd_dp)
-				return SCSI_MLQUEUE_HOST_BUSY;
+		if (!sd_dp->init_wq) {
+			sd_dp->init_wq = true;
 			sqcp->sd_dp = sd_dp;
 			sd_dp->sqa_idx = sqp - sdebug_q_arr;
 			sd_dp->qc_idx = k;
@@ -4117,6 +4391,7 @@ static int schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip,
 		}
 		if (sdebug_statistics)
 			sd_dp->issuing_cpu = raw_smp_processor_id();
+		sd_dp->defer_t = SDEB_DEFER_WQ;
 		schedule_work(&sd_dp->ew.work);
 	}
 	if (unlikely((SDEBUG_OPT_Q_NOISE & sdebug_opts) &&
@@ -4141,6 +4416,7 @@ respond_in_thread:	/* call back to mid-layer using invocation thread */
  */
 module_param_named(add_host, sdebug_add_host, int, S_IRUGO | S_IWUSR);
 module_param_named(ato, sdebug_ato, int, S_IRUGO);
+module_param_named(cdb_len, sdebug_cdb_len, int, 0644);
 module_param_named(clustering, sdebug_clustering, bool, S_IRUGO | S_IWUSR);
 module_param_named(delay, sdebug_jdelay, int, S_IRUGO | S_IWUSR);
 module_param_named(dev_size_mb, sdebug_dev_size_mb, int, S_IRUGO);
@@ -4198,6 +4474,7 @@ MODULE_VERSION(SDEBUG_VERSION);
 
 MODULE_PARM_DESC(add_host, "0..127 hosts allowed(def=1)");
 MODULE_PARM_DESC(ato, "application tag ownership: 0=disk 1=host (def=1)");
+MODULE_PARM_DESC(cdb_len, "suggest CDB lengths to drivers (def=10)");
 MODULE_PARM_DESC(clustering, "when set enables larger transfers (def=0)");
 MODULE_PARM_DESC(delay, "response delay (def=1 jiffy); 0:imm, -1,-2:tiny");
 MODULE_PARM_DESC(dev_size_mb, "size in MiB of ram shared by devs(def=8)");
@@ -4210,7 +4487,8 @@ MODULE_PARM_DESC(guard, "protection checksum: 0=crc, 1=ip (def=0)");
 MODULE_PARM_DESC(host_lock, "host_lock is ignored (def=0)");
 MODULE_PARM_DESC(inq_vendor, "SCSI INQUIRY vendor string (def=\"Linux\")");
 MODULE_PARM_DESC(inq_product, "SCSI INQUIRY product string (def=\"scsi_debug\")");
-MODULE_PARM_DESC(inq_rev, "SCSI INQUIRY revision string (def=\"0186\")");
+MODULE_PARM_DESC(inq_rev, "SCSI INQUIRY revision string (def=\""
+		 SDEBUG_VERSION "\")");
 MODULE_PARM_DESC(lbpu, "enable LBP, support UNMAP command (def=0)");
 MODULE_PARM_DESC(lbpws, "enable LBP, support WRITE SAME(16) with UNMAP bit (def=0)");
 MODULE_PARM_DESC(lbpws10, "enable LBP, support WRITE SAME(10) with UNMAP bit (def=0)");
@@ -4360,9 +4638,6 @@ static ssize_t delay_store(struct device_driver *ddp, const char *buf,
 				}
 			}
 			if (res > 0) {
-				/* make sure sdebug_defer instances get
-				 * re-allocated for new delay variant */
-				free_all_queued();
 				sdebug_jdelay = jdelay;
 				sdebug_ndelay = 0;
 			}
@@ -4403,9 +4678,6 @@ static ssize_t ndelay_store(struct device_driver *ddp, const char *buf,
 				}
 			}
 			if (res > 0) {
-				/* make sure sdebug_defer instances get
-				 * re-allocated for new delay variant */
-				free_all_queued();
 				sdebug_ndelay = ndelay;
 				sdebug_jdelay = ndelay  ? JDELAY_OVERRIDDEN
 							: DEF_JDELAY;
@@ -4426,15 +4698,15 @@ static ssize_t opts_show(struct device_driver *ddp, char *buf)
 static ssize_t opts_store(struct device_driver *ddp, const char *buf,
 			  size_t count)
 {
-        int opts;
+	int opts;
 	char work[20];
 
-        if (1 == sscanf(buf, "%10s", work)) {
-		if (0 == strncasecmp(work,"0x", 2)) {
-			if (1 == sscanf(&work[2], "%x", &opts))
+	if (sscanf(buf, "%10s", work) == 1) {
+		if (strncasecmp(work, "0x", 2) == 0) {
+			if (kstrtoint(work + 2, 16, &opts) == 0)
 				goto opts_done;
 		} else {
-			if (1 == sscanf(work, "%d", &opts))
+			if (kstrtoint(work, 10, &opts) == 0)
 				goto opts_done;
 		}
 	}
@@ -4455,7 +4727,7 @@ static ssize_t ptype_show(struct device_driver *ddp, char *buf)
 static ssize_t ptype_store(struct device_driver *ddp, const char *buf,
 			   size_t count)
 {
-        int n;
+	int n;
 
 	if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
 		sdebug_ptype = n;
@@ -4472,7 +4744,7 @@ static ssize_t dsense_show(struct device_driver *ddp, char *buf)
 static ssize_t dsense_store(struct device_driver *ddp, const char *buf,
 			    size_t count)
 {
-        int n;
+	int n;
 
 	if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
 		sdebug_dsense = n;
@@ -4489,7 +4761,7 @@ static ssize_t fake_rw_show(struct device_driver *ddp, char *buf)
 static ssize_t fake_rw_store(struct device_driver *ddp, const char *buf,
 			     size_t count)
 {
-        int n;
+	int n;
 
 	if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
 		n = (n > 0);
@@ -4522,7 +4794,7 @@ static ssize_t no_lun_0_show(struct device_driver *ddp, char *buf)
 static ssize_t no_lun_0_store(struct device_driver *ddp, const char *buf,
 			      size_t count)
 {
-        int n;
+	int n;
 
 	if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
 		sdebug_no_lun_0 = n;
@@ -4539,7 +4811,7 @@ static ssize_t num_tgts_show(struct device_driver *ddp, char *buf)
 static ssize_t num_tgts_store(struct device_driver *ddp, const char *buf,
 			      size_t count)
 {
-        int n;
+	int n;
 
 	if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
 		sdebug_num_tgts = n;
@@ -4569,7 +4841,7 @@ static ssize_t every_nth_show(struct device_driver *ddp, char *buf)
 static ssize_t every_nth_store(struct device_driver *ddp, const char *buf,
 			       size_t count)
 {
-        int nth;
+	int nth;
 
 	if ((count > 0) && (1 == sscanf(buf, "%d", &nth))) {
 		sdebug_every_nth = nth;
@@ -4591,7 +4863,7 @@ static ssize_t max_luns_show(struct device_driver *ddp, char *buf)
 static ssize_t max_luns_store(struct device_driver *ddp, const char *buf,
 			      size_t count)
 {
-        int n;
+	int n;
 	bool changed;
 
 	if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
@@ -4678,7 +4950,7 @@ static ssize_t virtual_gb_show(struct device_driver *ddp, char *buf)
 static ssize_t virtual_gb_store(struct device_driver *ddp, const char *buf,
 				size_t count)
 {
-        int n;
+	int n;
 	bool changed;
 
 	if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
@@ -4884,6 +5156,24 @@ static ssize_t uuid_ctl_show(struct device_driver *ddp, char *buf)
 }
 static DRIVER_ATTR_RO(uuid_ctl);
 
+static ssize_t cdb_len_show(struct device_driver *ddp, char *buf)
+{
+	return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_cdb_len);
+}
+static ssize_t cdb_len_store(struct device_driver *ddp, const char *buf,
+			     size_t count)
+{
+	int ret, n;
+
+	ret = kstrtoint(buf, 0, &n);
+	if (ret)
+		return ret;
+	sdebug_cdb_len = n;
+	all_config_cdb_len();
+	return count;
+}
+static DRIVER_ATTR_RW(cdb_len);
+
 
 /* Note: The following array creates attribute files in the
    /sys/bus/pseudo/drivers/scsi_debug directory. The advantage of these
@@ -4923,6 +5213,7 @@ static struct attribute *sdebug_drv_attrs[] = {
 	&driver_attr_ndelay.attr,
 	&driver_attr_strict.attr,
 	&driver_attr_uuid_ctl.attr,
+	&driver_attr_cdb_len.attr,
 	NULL,
 };
 ATTRIBUTE_GROUPS(sdebug_drv);
@@ -5113,12 +5404,12 @@ static int __init scsi_debug_init(void)
 	host_to_add = sdebug_add_host;
 	sdebug_add_host = 0;
 
-        for (k = 0; k < host_to_add; k++) {
-                if (sdebug_add_adapter()) {
+	for (k = 0; k < host_to_add; k++) {
+		if (sdebug_add_adapter()) {
 			pr_err("sdebug_add_adapter failed k=%d\n", k);
-                        break;
-                }
-        }
+			break;
+		}
+	}
 
 	if (sdebug_verbose)
 		pr_info("built %d host(s)\n", sdebug_add_host);
@@ -5161,53 +5452,53 @@ module_exit(scsi_debug_exit);
 
 static void sdebug_release_adapter(struct device * dev)
 {
-        struct sdebug_host_info *sdbg_host;
+	struct sdebug_host_info *sdbg_host;
 
 	sdbg_host = to_sdebug_host(dev);
-        kfree(sdbg_host);
+	kfree(sdbg_host);
 }
 
 static int sdebug_add_adapter(void)
 {
 	int k, devs_per_host;
-        int error = 0;
-        struct sdebug_host_info *sdbg_host;
+	int error = 0;
+	struct sdebug_host_info *sdbg_host;
 	struct sdebug_dev_info *sdbg_devinfo, *tmp;
 
-        sdbg_host = kzalloc(sizeof(*sdbg_host),GFP_KERNEL);
-        if (NULL == sdbg_host) {
+	sdbg_host = kzalloc(sizeof(*sdbg_host), GFP_KERNEL);
+	if (sdbg_host == NULL) {
 		pr_err("out of memory at line %d\n", __LINE__);
-                return -ENOMEM;
-        }
+		return -ENOMEM;
+	}
 
-        INIT_LIST_HEAD(&sdbg_host->dev_info_list);
+	INIT_LIST_HEAD(&sdbg_host->dev_info_list);
 
 	devs_per_host = sdebug_num_tgts * sdebug_max_luns;
-        for (k = 0; k < devs_per_host; k++) {
+	for (k = 0; k < devs_per_host; k++) {
 		sdbg_devinfo = sdebug_device_create(sdbg_host, GFP_KERNEL);
 		if (!sdbg_devinfo) {
 			pr_err("out of memory at line %d\n", __LINE__);
-                        error = -ENOMEM;
+			error = -ENOMEM;
 			goto clean;
-                }
-        }
+		}
+	}
 
-        spin_lock(&sdebug_host_list_lock);
-        list_add_tail(&sdbg_host->host_list, &sdebug_host_list);
-        spin_unlock(&sdebug_host_list_lock);
+	spin_lock(&sdebug_host_list_lock);
+	list_add_tail(&sdbg_host->host_list, &sdebug_host_list);
+	spin_unlock(&sdebug_host_list_lock);
 
-        sdbg_host->dev.bus = &pseudo_lld_bus;
-        sdbg_host->dev.parent = pseudo_primary;
-        sdbg_host->dev.release = &sdebug_release_adapter;
+	sdbg_host->dev.bus = &pseudo_lld_bus;
+	sdbg_host->dev.parent = pseudo_primary;
+	sdbg_host->dev.release = &sdebug_release_adapter;
 	dev_set_name(&sdbg_host->dev, "adapter%d", sdebug_add_host);
 
-        error = device_register(&sdbg_host->dev);
+	error = device_register(&sdbg_host->dev);
 
-        if (error)
+	if (error)
 		goto clean;
 
 	++sdebug_add_host;
-        return error;
+	return error;
 
 clean:
 	list_for_each_entry_safe(sdbg_devinfo, tmp, &sdbg_host->dev_info_list,
@@ -5217,20 +5508,20 @@ clean:
 	}
 
 	kfree(sdbg_host);
-        return error;
+	return error;
 }
 
 static void sdebug_remove_adapter(void)
 {
-        struct sdebug_host_info * sdbg_host = NULL;
+	struct sdebug_host_info *sdbg_host = NULL;
 
-        spin_lock(&sdebug_host_list_lock);
-        if (!list_empty(&sdebug_host_list)) {
-                sdbg_host = list_entry(sdebug_host_list.prev,
-                                       struct sdebug_host_info, host_list);
+	spin_lock(&sdebug_host_list_lock);
+	if (!list_empty(&sdebug_host_list)) {
+		sdbg_host = list_entry(sdebug_host_list.prev,
+				       struct sdebug_host_info, host_list);
 		list_del(&sdbg_host->host_list);
 	}
-        spin_unlock(&sdebug_host_list_lock);
+	spin_unlock(&sdebug_host_list_lock);
 
 	if (!sdbg_host)
 		return;
@@ -5281,6 +5572,12 @@ static bool fake_timeout(struct scsi_cmnd *scp)
 	return false;
 }
 
+static bool fake_host_busy(struct scsi_cmnd *scp)
+{
+	return (sdebug_opts & SDEBUG_OPT_HOST_BUSY) &&
+		(atomic_read(&sdebug_cmnd_count) % abs(sdebug_every_nth)) == 0;
+}
+
 static int scsi_debug_queuecommand(struct Scsi_Host *shost,
 				   struct scsi_cmnd *scp)
 {
@@ -5323,6 +5620,8 @@ static int scsi_debug_queuecommand(struct Scsi_Host *shost,
 			sdev_printk(KERN_INFO, sdp, "%s: cmd %s\n", my_name,
 				    b);
 	}
+	if (fake_host_busy(scp))
+		return SCSI_MLQUEUE_HOST_BUSY;
 	has_wlun_rl = (sdp->lun == SCSI_W_LUN_REPORT_LUNS);
 	if (unlikely((sdp->lun >= sdebug_max_luns) && !has_wlun_rl))
 		goto err_out;
@@ -5420,12 +5719,15 @@ static int scsi_debug_queuecommand(struct Scsi_Host *shost,
 		errsts = r_pfp(scp, devip);
 
 fini:
-	return schedule_resp(scp, devip, errsts,
-			     ((F_DELAY_OVERR & flags) ? 0 : sdebug_jdelay));
+	if (F_DELAY_OVERR & flags)
+		return schedule_resp(scp, devip, errsts, 0, 0);
+	else
+		return schedule_resp(scp, devip, errsts, sdebug_jdelay,
+				     sdebug_ndelay);
 check_cond:
-	return schedule_resp(scp, devip, check_condition_result, 0);
+	return schedule_resp(scp, devip, check_condition_result, 0, 0);
 err_out:
-	return schedule_resp(scp, NULL, DID_NO_CONNECT << 16, 0);
+	return schedule_resp(scp, NULL, DID_NO_CONNECT << 16, 0, 0);
 }
 
 static struct scsi_host_template sdebug_driver_template = {
@@ -5484,7 +5786,7 @@ static int sdebug_driver_probe(struct device * dev)
 	if (sdebug_mq_active)
 		hpnt->nr_hw_queues = submit_queues;
 
-        sdbg_host->shost = hpnt;
+	sdbg_host->shost = hpnt;
 	*((struct sdebug_host_info **)hpnt->hostdata) = sdbg_host;
 	if ((hpnt->this_id >= 0) && (sdebug_num_tgts > hpnt->this_id))
 		hpnt->max_id = sdebug_num_tgts + 1;
@@ -5542,12 +5844,12 @@ static int sdebug_driver_probe(struct device * dev)
 	sdebug_any_injecting_opt = !!(SDEBUG_OPT_ALL_INJECTING & sdebug_opts);
 	if (sdebug_every_nth)	/* need stats counters for every_nth */
 		sdebug_statistics = true;
-        error = scsi_add_host(hpnt, &sdbg_host->dev);
-        if (error) {
+	error = scsi_add_host(hpnt, &sdbg_host->dev);
+	if (error) {
 		pr_err("scsi_add_host failed\n");
-                error = -ENODEV;
+		error = -ENODEV;
 		scsi_host_put(hpnt);
-        } else
+	} else
 		scsi_scan_host(hpnt);
 
 	return error;
@@ -5555,7 +5857,7 @@ static int sdebug_driver_probe(struct device * dev)
 
 static int sdebug_driver_remove(struct device * dev)
 {
-        struct sdebug_host_info *sdbg_host;
+	struct sdebug_host_info *sdbg_host;
 	struct sdebug_dev_info *sdbg_devinfo, *tmp;
 
 	sdbg_host = to_sdebug_host(dev);
@@ -5565,16 +5867,16 @@ static int sdebug_driver_remove(struct device * dev)
 		return -ENODEV;
 	}
 
-        scsi_remove_host(sdbg_host->shost);
+	scsi_remove_host(sdbg_host->shost);
 
 	list_for_each_entry_safe(sdbg_devinfo, tmp, &sdbg_host->dev_info_list,
 				 dev_list) {
-                list_del(&sdbg_devinfo->dev_list);
-                kfree(sdbg_devinfo);
-        }
+		list_del(&sdbg_devinfo->dev_list);
+		kfree(sdbg_devinfo);
+	}
 
-        scsi_host_put(sdbg_host->shost);
-        return 0;
+	scsi_host_put(sdbg_host->shost);
+	return 0;
 }
 
 static int pseudo_lld_bus_match(struct device *dev,
diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c
index dfb8da83fa50..f3b117246d47 100644
--- a/drivers/scsi/scsi_devinfo.c
+++ b/drivers/scsi/scsi_devinfo.c
@@ -108,8 +108,8 @@ static struct {
 	 * seagate controller, which causes SCSI code to reset bus.
 	 */
 	{"HP", "C1750A", "3226", BLIST_NOLUN},		/* scanjet iic */
-	{"HP", "C1790A", "", BLIST_NOLUN},		/* scanjet iip */
-	{"HP", "C2500A", "", BLIST_NOLUN},		/* scanjet iicx */
+	{"HP", "C1790A", NULL, BLIST_NOLUN},		/* scanjet iip */
+	{"HP", "C2500A", NULL, BLIST_NOLUN},		/* scanjet iicx */
 	{"MEDIAVIS", "CDR-H93MV", "1.31", BLIST_NOLUN},	/* locks up */
 	{"MICROTEK", "ScanMaker II", "5.61", BLIST_NOLUN},	/* responds to all lun */
 	{"MITSUMI", "CD-R CR-2201CS", "6119", BLIST_NOLUN},	/* locks up */
@@ -119,7 +119,7 @@ static struct {
 	{"QUANTUM", "FIREBALL ST4.3S", "0F0C", BLIST_NOLUN},	/* locks up */
 	{"RELISYS", "Scorpio", NULL, BLIST_NOLUN},	/* responds to all lun */
 	{"SANKYO", "CP525", "6.64", BLIST_NOLUN},	/* causes failed REQ SENSE, extra reset */
-	{"TEXEL", "CD-ROM", "1.06", BLIST_NOLUN},
+	{"TEXEL", "CD-ROM", "1.06", BLIST_NOLUN | BLIST_BORKEN},
 	{"transtec", "T5008", "0001", BLIST_NOREPORTLUN },
 	{"YAMAHA", "CDR100", "1.00", BLIST_NOLUN},	/* locks up */
 	{"YAMAHA", "CDR102", "1.00", BLIST_NOLUN},	/* locks up */
@@ -158,8 +158,8 @@ static struct {
 	{"DELL", "PSEUDO DEVICE .", NULL, BLIST_SPARSELUN},	/* Dell PV 530F */
 	{"DELL", "PV530F", NULL, BLIST_SPARSELUN},
 	{"DELL", "PERCRAID", NULL, BLIST_FORCELUN},
-	{"DGC", "RAID", NULL, BLIST_SPARSELUN},	/* Dell PV 650F, storage on LUN 0 */
-	{"DGC", "DISK", NULL, BLIST_SPARSELUN},	/* Dell PV 650F, no storage on LUN 0 */
+	{"DGC", "RAID", NULL, BLIST_SPARSELUN},	/* EMC CLARiiON, storage on LUN 0 */
+	{"DGC", "DISK", NULL, BLIST_SPARSELUN},	/* EMC CLARiiON, no storage on LUN 0 */
 	{"EMC",  "Invista", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
 	{"EMC", "SYMMETRIX", NULL, BLIST_SPARSELUN | BLIST_LARGELUN | BLIST_REPORTLUN2},
 	{"EMULEX", "MD21/S2     ESDI", NULL, BLIST_SINGLELUN},
@@ -181,15 +181,14 @@ static struct {
 	{"HITACHI", "6586-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
 	{"HITACHI", "6588-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
 	{"HP", "A6189A", NULL, BLIST_SPARSELUN | BLIST_LARGELUN},	/* HP VA7400 */
-	{"HP", "OPEN-", "*", BLIST_REPORTLUN2}, /* HP XP Arrays */
+	{"HP", "OPEN-", "*", BLIST_REPORTLUN2 | BLIST_TRY_VPD_PAGES}, /* HP XP Arrays */
 	{"HP", "NetRAID-4M", NULL, BLIST_FORCELUN},
 	{"HP", "HSV100", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD},
 	{"HP", "C1557A", NULL, BLIST_FORCELUN},
 	{"HP", "C3323-300", "4269", BLIST_NOTQ},
 	{"HP", "C5713A", NULL, BLIST_NOREPORTLUN},
-	{"HP", "DF400", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
-	{"HP", "DF500", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
-	{"HP", "DF600", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
+	{"HP", "DF400", "*", BLIST_REPORTLUN2},
+	{"HP", "DF500", "*", BLIST_REPORTLUN2},
 	{"HP", "OP-C-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
 	{"HP", "3380-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
 	{"HP", "3390-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
@@ -255,7 +254,6 @@ static struct {
 	{"ST650211", "CF", NULL, BLIST_RETRY_HWERROR},
 	{"SUN", "T300", "*", BLIST_SPARSELUN},
 	{"SUN", "T4", "*", BLIST_SPARSELUN},
-	{"TEXEL", "CD-ROM", "1.06", BLIST_BORKEN},
 	{"Tornado-", "F4", "*", BLIST_NOREPORTLUN},
 	{"TOSHIBA", "CDROM", NULL, BLIST_ISROM},
 	{"TOSHIBA", "CD-ROM", NULL, BLIST_ISROM},
@@ -353,7 +351,8 @@ static int scsi_dev_info_list_add(int compatible, char *vendor, char *model,
  * Returns: 0 OK, -error on failure.
  **/
 int scsi_dev_info_list_add_keyed(int compatible, char *vendor, char *model,
-				 char *strflags, blist_flags_t flags, int key)
+				 char *strflags, blist_flags_t flags,
+				 enum scsi_devinfo_key key)
 {
 	struct scsi_dev_info_list *devinfo;
 	struct scsi_dev_info_list_table *devinfo_table =
@@ -402,7 +401,7 @@ EXPORT_SYMBOL(scsi_dev_info_list_add_keyed);
  * Returns: pointer to matching entry, or ERR_PTR on failure.
  **/
 static struct scsi_dev_info_list *scsi_dev_info_list_find(const char *vendor,
-		const char *model, int key)
+		const char *model, enum scsi_devinfo_key key)
 {
 	struct scsi_dev_info_list *devinfo;
 	struct scsi_dev_info_list_table *devinfo_table =
@@ -485,7 +484,8 @@ static struct scsi_dev_info_list *scsi_dev_info_list_find(const char *vendor,
  *
  * Returns: 0 OK, -error on failure.
  **/
-int scsi_dev_info_list_del_keyed(char *vendor, char *model, int key)
+int scsi_dev_info_list_del_keyed(char *vendor, char *model,
+				 enum scsi_devinfo_key key)
 {
 	struct scsi_dev_info_list *found;
 
@@ -587,20 +587,15 @@ blist_flags_t scsi_get_device_flags(struct scsi_device *sdev,
 blist_flags_t scsi_get_device_flags_keyed(struct scsi_device *sdev,
 				const unsigned char *vendor,
 				const unsigned char *model,
-				int key)
+				enum scsi_devinfo_key key)
 {
 	struct scsi_dev_info_list *devinfo;
-	int err;
 
 	devinfo = scsi_dev_info_list_find(vendor, model, key);
 	if (!IS_ERR(devinfo))
 		return devinfo->flags;
 
-	err = PTR_ERR(devinfo);
-	if (err != -ENOENT)
-		return err;
-
-	/* nothing found, return nothing */
+	/* key or device not found: return nothing */
 	if (key != SCSI_DEVINFO_GLOBAL)
 		return 0;
 
@@ -774,7 +769,7 @@ void scsi_exit_devinfo(void)
  * Adds the requested list, returns zero on success, -EEXIST if the
  * key is already registered to a list, or other error on failure.
  */
-int scsi_dev_info_add_list(int key, const char *name)
+int scsi_dev_info_add_list(enum scsi_devinfo_key key, const char *name)
 {
 	struct scsi_dev_info_list_table *devinfo_table =
 		scsi_devinfo_lookup_by_key(key);
@@ -806,7 +801,7 @@ EXPORT_SYMBOL(scsi_dev_info_add_list);
  * frees the list itself.  Returns 0 on success or -EINVAL if the key
  * can't be found.
  */
-int scsi_dev_info_remove_list(int key)
+int scsi_dev_info_remove_list(enum scsi_devinfo_key key)
 {
 	struct list_head *lh, *lh_next;
 	struct scsi_dev_info_list_table *devinfo_table =
diff --git a/drivers/scsi/scsi_dh.c b/drivers/scsi/scsi_dh.c
index 2b785d09d5bd..b88b5dbbc444 100644
--- a/drivers/scsi/scsi_dh.c
+++ b/drivers/scsi/scsi_dh.c
@@ -56,10 +56,13 @@ static const struct scsi_dh_blist scsi_dh_blist[] = {
 	{"IBM", "1815",			"rdac", },
 	{"IBM", "1818",			"rdac", },
 	{"IBM", "3526",			"rdac", },
+	{"IBM", "3542",			"rdac", },
+	{"IBM", "3552",			"rdac", },
 	{"SGI", "TP9",			"rdac", },
 	{"SGI", "IS",			"rdac", },
-	{"STK", "OPENstorage D280",	"rdac", },
+	{"STK", "OPENstorage",		"rdac", },
 	{"STK", "FLEXLINE 380",		"rdac", },
+	{"STK", "BladeCtlr",		"rdac", },
 	{"SUN", "CSM",			"rdac", },
 	{"SUN", "LCSM100",		"rdac", },
 	{"SUN", "STK6580_6780",		"rdac", },
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 62b56de38ae8..d042915ce895 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -61,9 +61,10 @@ static int scsi_eh_try_stu(struct scsi_cmnd *scmd);
 static int scsi_try_to_abort_cmd(struct scsi_host_template *,
 				 struct scsi_cmnd *);
 
-/* called with shost->host_lock held */
 void scsi_eh_wakeup(struct Scsi_Host *shost)
 {
+	lockdep_assert_held(shost->host_lock);
+
 	if (atomic_read(&shost->host_busy) == shost->host_failed) {
 		trace_scsi_eh_wakeup(shost);
 		wake_up_process(shost->ehandler);
@@ -220,6 +221,17 @@ static void scsi_eh_reset(struct scsi_cmnd *scmd)
 	}
 }
 
+static void scsi_eh_inc_host_failed(struct rcu_head *head)
+{
+	struct Scsi_Host *shost = container_of(head, typeof(*shost), rcu);
+	unsigned long flags;
+
+	spin_lock_irqsave(shost->host_lock, flags);
+	shost->host_failed++;
+	scsi_eh_wakeup(shost);
+	spin_unlock_irqrestore(shost->host_lock, flags);
+}
+
 /**
  * scsi_eh_scmd_add - add scsi cmd to error handling.
  * @scmd:	scmd to run eh on.
@@ -242,9 +254,12 @@ void scsi_eh_scmd_add(struct scsi_cmnd *scmd)
 
 	scsi_eh_reset(scmd);
 	list_add_tail(&scmd->eh_entry, &shost->eh_cmd_q);
-	shost->host_failed++;
-	scsi_eh_wakeup(shost);
 	spin_unlock_irqrestore(shost->host_lock, flags);
+	/*
+	 * Ensure that all tasks observe the host state change before the
+	 * host_failed change.
+	 */
+	call_rcu(&shost->rcu, scsi_eh_inc_host_failed);
 }
 
 /**
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index d9ca1dfab154..976c936029cb 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -164,7 +164,7 @@ static void scsi_mq_requeue_cmd(struct scsi_cmnd *cmd)
  * for a requeue after completion, which should only occur in this
  * file.
  */
-static void __scsi_queue_insert(struct scsi_cmnd *cmd, int reason, int unbusy)
+static void __scsi_queue_insert(struct scsi_cmnd *cmd, int reason, bool unbusy)
 {
 	struct scsi_device *device = cmd->device;
 	struct request_queue *q = device->request_queue;
@@ -220,7 +220,7 @@ static void __scsi_queue_insert(struct scsi_cmnd *cmd, int reason, int unbusy)
  */
 void scsi_queue_insert(struct scsi_cmnd *cmd, int reason)
 {
-	__scsi_queue_insert(cmd, reason, 1);
+	__scsi_queue_insert(cmd, reason, true);
 }
 
 
@@ -318,22 +318,39 @@ static void scsi_init_cmd_errh(struct scsi_cmnd *cmd)
 		cmd->cmd_len = scsi_command_size(cmd->cmnd);
 }
 
-void scsi_device_unbusy(struct scsi_device *sdev)
+/*
+ * Decrement the host_busy counter and wake up the error handler if necessary.
+ * Avoid as follows that the error handler is not woken up if shost->host_busy
+ * == shost->host_failed: use call_rcu() in scsi_eh_scmd_add() in combination
+ * with an RCU read lock in this function to ensure that this function in its
+ * entirety either finishes before scsi_eh_scmd_add() increases the
+ * host_failed counter or that it notices the shost state change made by
+ * scsi_eh_scmd_add().
+ */
+static void scsi_dec_host_busy(struct Scsi_Host *shost)
 {
-	struct Scsi_Host *shost = sdev->host;
-	struct scsi_target *starget = scsi_target(sdev);
 	unsigned long flags;
 
+	rcu_read_lock();
 	atomic_dec(&shost->host_busy);
-	if (starget->can_queue > 0)
-		atomic_dec(&starget->target_busy);
-
-	if (unlikely(scsi_host_in_recovery(shost) &&
-		     (shost->host_failed || shost->host_eh_scheduled))) {
+	if (unlikely(scsi_host_in_recovery(shost))) {
 		spin_lock_irqsave(shost->host_lock, flags);
-		scsi_eh_wakeup(shost);
+		if (shost->host_failed || shost->host_eh_scheduled)
+			scsi_eh_wakeup(shost);
 		spin_unlock_irqrestore(shost->host_lock, flags);
 	}
+	rcu_read_unlock();
+}
+
+void scsi_device_unbusy(struct scsi_device *sdev)
+{
+	struct Scsi_Host *shost = sdev->host;
+	struct scsi_target *starget = scsi_target(sdev);
+
+	scsi_dec_host_busy(shost);
+
+	if (starget->can_queue > 0)
+		atomic_dec(&starget->target_busy);
 
 	atomic_dec(&sdev->device_busy);
 }
@@ -998,11 +1015,11 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
 		break;
 	case ACTION_RETRY:
 		/* Retry the same command immediately */
-		__scsi_queue_insert(cmd, SCSI_MLQUEUE_EH_RETRY, 0);
+		__scsi_queue_insert(cmd, SCSI_MLQUEUE_EH_RETRY, false);
 		break;
 	case ACTION_DELAYED_RETRY:
 		/* Retry the same command after a delay */
-		__scsi_queue_insert(cmd, SCSI_MLQUEUE_DEVICE_BUSY, 0);
+		__scsi_queue_insert(cmd, SCSI_MLQUEUE_DEVICE_BUSY, false);
 		break;
 	}
 }
@@ -1128,7 +1145,7 @@ EXPORT_SYMBOL(scsi_init_io);
  * Called from inside blk_get_request() for pass-through requests and from
  * inside scsi_init_command() for filesystem requests.
  */
-void scsi_initialize_rq(struct request *rq)
+static void scsi_initialize_rq(struct request *rq)
 {
 	struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(rq);
 
@@ -1136,7 +1153,6 @@ void scsi_initialize_rq(struct request *rq)
 	cmd->jiffies_at_alloc = jiffies;
 	cmd->retries = 0;
 }
-EXPORT_SYMBOL(scsi_initialize_rq);
 
 /* Add a command to the list used by the aacraid and dpt_i2o drivers */
 void scsi_add_cmd_to_list(struct scsi_cmnd *cmd)
@@ -1532,7 +1548,7 @@ starved:
 		list_add_tail(&sdev->starved_entry, &shost->starved_list);
 	spin_unlock_irq(shost->host_lock);
 out_dec:
-	atomic_dec(&shost->host_busy);
+	scsi_dec_host_busy(shost);
 	return 0;
 }
 
@@ -2020,7 +2036,7 @@ static blk_status_t scsi_queue_rq(struct blk_mq_hw_ctx *hctx,
 	return BLK_STS_OK;
 
 out_dec_host_busy:
-       atomic_dec(&shost->host_busy);
+	scsi_dec_host_busy(shost);
 out_dec_target_busy:
 	if (scsi_target(sdev)->can_queue > 0)
 		atomic_dec(&scsi_target(sdev)->target_busy);
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
index a5946cd64caa..99f1db5e467e 100644
--- a/drivers/scsi/scsi_priv.h
+++ b/drivers/scsi/scsi_priv.h
@@ -45,7 +45,7 @@ static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
 /* scsi_devinfo.c */
 
 /* list of keys for the lists */
-enum {
+enum scsi_devinfo_key {
 	SCSI_DEVINFO_GLOBAL = 0,
 	SCSI_DEVINFO_SPI,
 };
@@ -56,13 +56,15 @@ extern blist_flags_t scsi_get_device_flags(struct scsi_device *sdev,
 extern blist_flags_t scsi_get_device_flags_keyed(struct scsi_device *sdev,
 						 const unsigned char *vendor,
 						 const unsigned char *model,
-						 int key);
+						 enum scsi_devinfo_key key);
 extern int scsi_dev_info_list_add_keyed(int compatible, char *vendor,
 					char *model, char *strflags,
-					blist_flags_t flags, int key);
-extern int scsi_dev_info_list_del_keyed(char *vendor, char *model, int key);
-extern int scsi_dev_info_add_list(int key, const char *name);
-extern int scsi_dev_info_remove_list(int key);
+					blist_flags_t flags,
+					enum scsi_devinfo_key key);
+extern int scsi_dev_info_list_del_keyed(char *vendor, char *model,
+					enum scsi_devinfo_key key);
+extern int scsi_dev_info_add_list(enum scsi_devinfo_key key, const char *name);
+extern int scsi_dev_info_remove_list(enum scsi_devinfo_key key);
 
 extern int __init scsi_init_devinfo(void);
 extern void scsi_exit_devinfo(void);
@@ -184,7 +186,6 @@ void scsi_dh_release_device(struct scsi_device *sdev);
 static inline void scsi_dh_add_device(struct scsi_device *sdev) { }
 static inline void scsi_dh_release_device(struct scsi_device *sdev) { }
 #endif
-static inline void scsi_dh_remove_device(struct scsi_device *sdev) { }
 
 /* 
  * internal scsi timeout functions: for use by mid-layer and transport
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 26ce17178401..91b90f672d23 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -1278,7 +1278,6 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)
 	if (error) {
 		sdev_printk(KERN_INFO, sdev,
 				"failed to add device: %d\n", error);
-		scsi_dh_remove_device(sdev);
 		return error;
 	}
 
@@ -1287,7 +1286,6 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)
 	if (error) {
 		sdev_printk(KERN_INFO, sdev,
 				"failed to add class device: %d\n", error);
-		scsi_dh_remove_device(sdev);
 		device_del(&sdev->sdev_gendev);
 		return error;
 	}
@@ -1354,7 +1352,6 @@ void __scsi_remove_device(struct scsi_device *sdev)
 		bsg_unregister_queue(sdev->request_queue);
 		device_unregister(&sdev->sdev_dev);
 		transport_remove_device(dev);
-		scsi_dh_remove_device(sdev);
 		device_del(dev);
 	} else
 		put_device(&sdev->sdev_dev);
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index 4664024bd5d3..be3be0f9cb2d 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -267,8 +267,8 @@ static const struct {
 	{ FC_PORTSPEED_50GBIT,		"50 Gbit" },
 	{ FC_PORTSPEED_100GBIT,		"100 Gbit" },
 	{ FC_PORTSPEED_25GBIT,		"25 Gbit" },
-	{ FC_PORTSPEED_64BIT,		"64 Gbit" },
-	{ FC_PORTSPEED_128BIT,		"128 Gbit" },
+	{ FC_PORTSPEED_64GBIT,		"64 Gbit" },
+	{ FC_PORTSPEED_128GBIT,		"128 Gbit" },
 	{ FC_PORTSPEED_NOT_NEGOTIATED,	"Not Negotiated" },
 };
 fc_bitfield_name_search(port_speed, fc_port_speed_names)
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index a028ab3322a9..ce756d575aff 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2172,7 +2172,7 @@ sd_spinup_disk(struct scsi_disk *sdkp)
 			}
 			/* Wait 1 second for next try */
 			msleep(1000);
-			printk(".");
+			printk(KERN_CONT ".");
 
 		/*
 		 * Wait for USB flash devices with slow firmware.
@@ -2202,9 +2202,9 @@ sd_spinup_disk(struct scsi_disk *sdkp)
 
 	if (spintime) {
 		if (scsi_status_is_good(the_result))
-			printk("ready\n");
+			printk(KERN_CONT "ready\n");
 		else
-			printk("not responding...\n");
+			printk(KERN_CONT "not responding...\n");
 	}
 }
 
diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c
index 11826c5c2dd4..62f04c0511cf 100644
--- a/drivers/scsi/ses.c
+++ b/drivers/scsi/ses.c
@@ -615,13 +615,16 @@ static void ses_enclosure_data_process(struct enclosure_device *edev,
 }
 
 static void ses_match_to_enclosure(struct enclosure_device *edev,
-				   struct scsi_device *sdev)
+				   struct scsi_device *sdev,
+				   int refresh)
 {
+	struct scsi_device *edev_sdev = to_scsi_device(edev->edev.parent);
 	struct efd efd = {
 		.addr = 0,
 	};
 
-	ses_enclosure_data_process(edev, to_scsi_device(edev->edev.parent), 0);
+	if (refresh)
+		ses_enclosure_data_process(edev, edev_sdev, 0);
 
 	if (scsi_is_sas_rphy(sdev->sdev_target->dev.parent))
 		efd.addr = sas_get_address(sdev);
@@ -652,7 +655,7 @@ static int ses_intf_add(struct device *cdev,
 		struct enclosure_device *prev = NULL;
 
 		while ((edev = enclosure_find(&sdev->host->shost_gendev, prev)) != NULL) {
-			ses_match_to_enclosure(edev, sdev);
+			ses_match_to_enclosure(edev, sdev, 1);
 			prev = edev;
 		}
 		return -ENODEV;
@@ -768,7 +771,7 @@ page2_not_supported:
 	shost_for_each_device(tmp_sdev, sdev->host) {
 		if (tmp_sdev->lun != 0 || scsi_device_enclosure(tmp_sdev))
 			continue;
-		ses_match_to_enclosure(edev, tmp_sdev);
+		ses_match_to_enclosure(edev, tmp_sdev, 0);
 	}
 
 	return 0;
diff --git a/drivers/scsi/smartpqi/Makefile b/drivers/scsi/smartpqi/Makefile
index 0f42a225a664..e6b779930230 100644
--- a/drivers/scsi/smartpqi/Makefile
+++ b/drivers/scsi/smartpqi/Makefile
@@ -1,3 +1,3 @@
 ccflags-y += -I.
-obj-m		+= smartpqi.o
+obj-$(CONFIG_SCSI_SMARTPQI) += smartpqi.o
 smartpqi-objs := smartpqi_init.o smartpqi_sis.o smartpqi_sas_transport.o
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index b141d7641a2e..6c399480783d 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -4712,7 +4712,7 @@ static ssize_t read_byte_cnt_show(struct device *dev,
 static DEVICE_ATTR_RO(read_byte_cnt);
 
 /**
- * read_us_show - return read us - overall time spent waiting on reads in ns.
+ * read_ns_show - return read ns - overall time spent waiting on reads in ns.
  * @dev: struct device
  * @attr: attribute structure
  * @buf: buffer to return formatted data in
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index 3b3d1d050cac..40fc7a590e81 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -1834,8 +1834,10 @@ static int storvsc_probe(struct hv_device *device,
 		fc_host_node_name(host) = stor_device->node_name;
 		fc_host_port_name(host) = stor_device->port_name;
 		stor_device->rport = fc_remote_port_add(host, 0, &ids);
-		if (!stor_device->rport)
+		if (!stor_device->rport) {
+			ret = -ENOMEM;
 			goto err_out4;
+		}
 	}
 #endif
 	return 0;
diff --git a/drivers/scsi/ufs/ufshci.h b/drivers/scsi/ufs/ufshci.h
index 277752b0fc6f..1a1b5d9fe514 100644
--- a/drivers/scsi/ufs/ufshci.h
+++ b/drivers/scsi/ufs/ufshci.h
@@ -157,6 +157,8 @@ enum {
 #define UTP_TRANSFER_REQ_LIST_READY		0x2
 #define UTP_TASK_REQ_LIST_READY			0x4
 #define UIC_COMMAND_READY			0x8
+#define HOST_ERROR_INDICATOR			0x10
+#define DEVICE_ERROR_INDICATOR			0x20
 #define UIC_POWER_MODE_CHANGE_REQ_STATUS_MASK	UFS_MASK(0x7, 8)
 
 #define UFSHCD_STATUS_READY	(UTP_TRANSFER_REQ_LIST_READY |\
@@ -185,6 +187,10 @@ enum {
 /* UECDL - Host UIC Error Code Data Link Layer 3Ch */
 #define UIC_DATA_LINK_LAYER_ERROR		0x80000000
 #define UIC_DATA_LINK_LAYER_ERROR_CODE_MASK	0x7FFF
+#define UIC_DATA_LINK_LAYER_ERROR_TCX_REP_TIMER_EXP	0x2
+#define UIC_DATA_LINK_LAYER_ERROR_AFCX_REQ_TIMER_EXP	0x4
+#define UIC_DATA_LINK_LAYER_ERROR_FCX_PRO_TIMER_EXP	0x8
+#define UIC_DATA_LINK_LAYER_ERROR_RX_BUF_OF	0x20
 #define UIC_DATA_LINK_LAYER_ERROR_PA_INIT	0x2000
 #define UIC_DATA_LINK_LAYER_ERROR_NAC_RECEIVED	0x0001
 #define UIC_DATA_LINK_LAYER_ERROR_TCx_REPLAY_TIMEOUT 0x0002
@@ -192,10 +198,20 @@ enum {
 /* UECN - Host UIC Error Code Network Layer 40h */
 #define UIC_NETWORK_LAYER_ERROR			0x80000000
 #define UIC_NETWORK_LAYER_ERROR_CODE_MASK	0x7
+#define UIC_NETWORK_UNSUPPORTED_HEADER_TYPE	0x1
+#define UIC_NETWORK_BAD_DEVICEID_ENC		0x2
+#define UIC_NETWORK_LHDR_TRAP_PACKET_DROPPING	0x4
 
 /* UECT - Host UIC Error Code Transport Layer 44h */
 #define UIC_TRANSPORT_LAYER_ERROR		0x80000000
 #define UIC_TRANSPORT_LAYER_ERROR_CODE_MASK	0x7F
+#define UIC_TRANSPORT_UNSUPPORTED_HEADER_TYPE	0x1
+#define UIC_TRANSPORT_UNKNOWN_CPORTID		0x2
+#define UIC_TRANSPORT_NO_CONNECTION_RX		0x4
+#define UIC_TRANSPORT_CONTROLLED_SEGMENT_DROPPING	0x8
+#define UIC_TRANSPORT_BAD_TC			0x10
+#define UIC_TRANSPORT_E2E_CREDIT_OVERFOW	0x20
+#define UIC_TRANSPORT_SAFETY_VALUE_DROPPING	0x40
 
 /* UECDME - Host UIC Error Code DME 48h */
 #define UIC_DME_ERROR			0x80000000
diff --git a/drivers/scsi/wd719x.c b/drivers/scsi/wd719x.c
index 2a9da2e0ea6b..2ba2b7b47f41 100644
--- a/drivers/scsi/wd719x.c
+++ b/drivers/scsi/wd719x.c
@@ -803,7 +803,9 @@ static enum wd719x_card_type wd719x_detect_type(struct wd719x *wd)
 static int wd719x_board_found(struct Scsi_Host *sh)
 {
 	struct wd719x *wd = shost_priv(sh);
-	char *card_types[] = { "Unknown card", "WD7193", "WD7197", "WD7296" };
+	static const char * const card_types[] = {
+		"Unknown card", "WD7193", "WD7197", "WD7296"
+	};
 	int ret;
 
 	INIT_LIST_HEAD(&wd->active_scbs);
author	Linus Torvalds <torvalds@linux-foundation.org>	2018-01-31 11:23:28 -0800
committer	Linus Torvalds <torvalds@linux-foundation.org>	2018-01-31 11:23:28 -0800
commit	28bc6fb9596fe1e577d09fc17ee6e1bb051c6ba3 (patch)
tree	6293b282a960720fc5008e3e5fa4d096d974b2f1 /drivers
parent	0be600a5add76e8e8b9e1119f2a7426ff849aca8 (diff)
parent	a2390348c19d0819d525d375414a7cfdacb51a68 (diff)
download	blackbird-op-linux-28bc6fb9596fe1e577d09fc17ee6e1bb051c6ba3.tar.gz blackbird-op-linux-28bc6fb9596fe1e577d09fc17ee6e1bb051c6ba3.zip