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

Pull SCSI updates from James Bottomley: "Updates to the usual drivers (qla2xxx, lpfc, ufs, hisi_sas, mpi3mr, mpt3sas, target). The biggest change (from my biased viewpoint) being that the mpi3mr now attached to the SAS transport class, making it the first fusion type device to do so. Beyond the usual bug fixing and security class reworks, there aren't a huge number of core changes" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (141 commits) scsi: iscsi: iscsi_tcp: Fix null-ptr-deref while calling getpeername() scsi: mpi3mr: Remove unnecessary cast scsi: stex: Properly zero out the passthrough command structure scsi: mpi3mr: Update driver version to 8.2.0.3.0 scsi: mpi3mr: Fix scheduling while atomic type bug scsi: mpi3mr: Scan the devices during resume time scsi: mpi3mr: Free enclosure objects during driver unload scsi: mpi3mr: Handle 0xF003 Fault Code scsi: mpi3mr: Graceful handling of surprise removal of PCIe HBA scsi: mpi3mr: Schedule IRQ kthreads only on non-RT kernels scsi: mpi3mr: Support new power management framework scsi: mpi3mr: Update mpi3 header files scsi: mpt3sas: Revert "scsi: mpt3sas: Fix ioc->base_readl() use" scsi: mpt3sas: Revert "scsi: mpt3sas: Fix writel() use" scsi: wd33c93: Remove dead code related to the long-gone config WD33C93_PIO scsi: core: Add I/O timeout count for SCSI device scsi: qedf: Populate sysfs attributes for vport scsi: pm8001: Replace one-element array with flexible-array member scsi: 3w-xxxx: Replace one-element array with flexible-array member scsi: hptiop: Replace one-element array with flexible-array member in struct hpt_iop_request_ioctl_command() ...
author: Linus Torvalds <torvalds@linux-foundation.org> 2022-10-07 12:33:18 -0700
committer: Linus Torvalds <torvalds@linux-foundation.org> 2022-10-07 12:33:18 -0700
commit: 62e6e5940c0c09433efa52d0fa9a11623a4704b2 (patch)
tree: 17e281d817f9684542d69f4098f7d2b24f6c7398
parent: e08466a7c00733a501d3c5328d29ec974478d717 (diff)
parent: 57569c37f0add1b6489e1a1563c71519daf732cf (diff)
download: linux-stable-62e6e5940c0c09433efa52d0fa9a11623a4704b2.tar.gz
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122 files changed, 7786 insertions, 2299 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-ufs b/Documentation/ABI/testing/sysfs-driver-ufs
index 6b248abb1bd7..228aa43e14ed 100644
--- a/Documentation/ABI/testing/sysfs-driver-ufs
+++ b/Documentation/ABI/testing/sysfs-driver-ufs
@@ -1417,6 +1417,15 @@ Description:	This node is used to set or display whether UFS WriteBooster is
 		platform that doesn't support UFSHCD_CAP_CLK_SCALING, we can
 		disable/enable WriteBooster through this sysfs node.
 
+What:		/sys/bus/platform/drivers/ufshcd/*/enable_wb_buf_flush
+What:		/sys/bus/platform/devices/*.ufs/enable_wb_buf_flush
+Date:		July 2022
+Contact:	Jinyoung Choi <j-young.choi@samsung.com>
+Description:	This entry shows the status of WriteBooster buffer flushing
+		and it can be used to enable or disable the flushing.
+		If flushing is enabled, the device executes the flush
+		operation when the command queue is empty.
+
 What:		/sys/bus/platform/drivers/ufshcd/*/device_descriptor/hpb_version
 What:		/sys/bus/platform/devices/*.ufs/device_descriptor/hpb_version
 Date:		June 2021
@@ -1591,6 +1600,43 @@ Description:	This entry shows the status of HPB.
 
 		The file is read only.
 
+Contact:	Daniil Lunev <dlunev@chromium.org>
+What:		/sys/bus/platform/drivers/ufshcd/*/capabilities/
+What:		/sys/bus/platform/devices/*.ufs/capabilities/
+Date:		August 2022
+Description:	The group represents the effective capabilities of the
+		host-device pair. i.e. the capabilities which are enabled in the
+		driver for the specific host controller, supported by the host
+		controller and are supported and/or have compatible
+		configuration on the device side.
+
+Contact:	Daniil Lunev <dlunev@chromium.org>
+What:		/sys/bus/platform/drivers/ufshcd/*/capabilities/clock_scaling
+What:		/sys/bus/platform/devices/*.ufs/capabilities/clock_scaling
+Date:		August 2022
+Contact:	Daniil Lunev <dlunev@chromium.org>
+Description:	Indicates status of clock scaling.
+
+		== ============================
+		0  Clock scaling is not supported.
+		1  Clock scaling is supported.
+		== ============================
+
+		The file is read only.
+
+What:		/sys/bus/platform/drivers/ufshcd/*/capabilities/write_booster
+What:		/sys/bus/platform/devices/*.ufs/capabilities/write_booster
+Date:		August 2022
+Contact:	Daniil Lunev <dlunev@chromium.org>
+Description:	Indicates status of Write Booster.
+
+		== ============================
+		0  Write Booster can not be enabled.
+		1  Write Booster can be enabled.
+		== ============================
+
+		The file is read only.
+
 What:		/sys/class/scsi_device/*/device/hpb_param_sysfs/activation_thld
 Date:		February 2021
 Contact:	Avri Altman <avri.altman@wdc.com>
diff --git a/Documentation/scsi/ChangeLog.lpfc b/Documentation/scsi/ChangeLog.lpfc
index 2f6d595f95e1..caedc8571b45 100644
--- a/Documentation/scsi/ChangeLog.lpfc
+++ b/Documentation/scsi/ChangeLog.lpfc
@@ -401,7 +401,7 @@ Changes from 20041213 to 20041220
 	  structure.
 	* Integrated patch from Christoph Hellwig <hch@lst.de> Kill
 	  compile warnings on 64 bit platforms: %variables for %llx format
-	  specifiers must be caste to long long because %(u)int64_t can
+	  specifiers must be cast to long long because %(u)int64_t can
 	  just be long on 64bit platforms.
 	* Integrated patch from Christoph Hellwig <hch@lst.de> Removes
 	  dead code.
diff --git a/drivers/message/fusion/mptctl.c b/drivers/message/fusion/mptctl.c
index f9ee957072c3..52c7020c9d19 100644
--- a/drivers/message/fusion/mptctl.c
+++ b/drivers/message/fusion/mptctl.c
@@ -620,7 +620,6 @@ __mptctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	mpt_ioctl_header __user *uhdr = (void __user *) arg;
 	mpt_ioctl_header	 khdr;
-	int iocnum;
 	unsigned iocnumX;
 	int nonblock = (file->f_flags & O_NONBLOCK);
 	int ret;
@@ -634,12 +633,11 @@ __mptctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	}
 	ret = -ENXIO;				/* (-6) No such device or address */
 
-	/* Verify intended MPT adapter - set iocnum and the adapter
+	/* Verify intended MPT adapter - set iocnumX and the adapter
 	 * pointer (iocp)
 	 */
 	iocnumX = khdr.iocnum & 0xFF;
-	if (((iocnum = mpt_verify_adapter(iocnumX, &iocp)) < 0) ||
-	    (iocp == NULL))
+	if ((mpt_verify_adapter(iocnumX, &iocp) < 0) || (iocp == NULL))
 		return -ENODEV;
 
 	if (!iocp->active) {
diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index cd823ff5deab..6cb9cca9565b 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -2006,7 +2006,7 @@ static int twa_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
 	retval = pci_enable_device(pdev);
 	if (retval) {
 		TW_PRINTK(host, TW_DRIVER, 0x34, "Failed to enable pci device");
-		goto out_disable_device;
+		return -ENODEV;
 	}
 
 	pci_set_master(pdev);
diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
index a853c5497af6..ffdecb12d654 100644
--- a/drivers/scsi/3w-xxxx.c
+++ b/drivers/scsi/3w-xxxx.c
@@ -912,7 +912,7 @@ static long tw_chrdev_ioctl(struct file *file, unsigned int cmd, unsigned long a
 	data_buffer_length_adjusted = (data_buffer_length + 511) & ~511;
 
 	/* Now allocate ioctl buf memory */
-	cpu_addr = dma_alloc_coherent(&tw_dev->tw_pci_dev->dev, data_buffer_length_adjusted+sizeof(TW_New_Ioctl) - 1, &dma_handle, GFP_KERNEL);
+	cpu_addr = dma_alloc_coherent(&tw_dev->tw_pci_dev->dev, data_buffer_length_adjusted + sizeof(TW_New_Ioctl), &dma_handle, GFP_KERNEL);
 	if (cpu_addr == NULL) {
 		retval = -ENOMEM;
 		goto out;
@@ -921,7 +921,7 @@ static long tw_chrdev_ioctl(struct file *file, unsigned int cmd, unsigned long a
 	tw_ioctl = (TW_New_Ioctl *)cpu_addr;
 
 	/* Now copy down the entire ioctl */
-	if (copy_from_user(tw_ioctl, argp, data_buffer_length + sizeof(TW_New_Ioctl) - 1))
+	if (copy_from_user(tw_ioctl, argp, data_buffer_length + sizeof(TW_New_Ioctl)))
 		goto out2;
 
 	passthru = (TW_Passthru *)&tw_ioctl->firmware_command;
@@ -966,15 +966,15 @@ static long tw_chrdev_ioctl(struct file *file, unsigned int cmd, unsigned long a
 			/* Load the sg list */
 			switch (TW_SGL_OUT(tw_ioctl->firmware_command.opcode__sgloffset)) {
 			case 2:
-				tw_ioctl->firmware_command.byte8.param.sgl[0].address = dma_handle + sizeof(TW_New_Ioctl) - 1;
+				tw_ioctl->firmware_command.byte8.param.sgl[0].address = dma_handle + sizeof(TW_New_Ioctl);
 				tw_ioctl->firmware_command.byte8.param.sgl[0].length = data_buffer_length_adjusted;
 				break;
 			case 3:
-				tw_ioctl->firmware_command.byte8.io.sgl[0].address = dma_handle + sizeof(TW_New_Ioctl) - 1;
+				tw_ioctl->firmware_command.byte8.io.sgl[0].address = dma_handle + sizeof(TW_New_Ioctl);
 				tw_ioctl->firmware_command.byte8.io.sgl[0].length = data_buffer_length_adjusted;
 				break;
 			case 5:
-				passthru->sg_list[0].address = dma_handle + sizeof(TW_New_Ioctl) - 1;
+				passthru->sg_list[0].address = dma_handle + sizeof(TW_New_Ioctl);
 				passthru->sg_list[0].length = data_buffer_length_adjusted;
 				break;
 			}
@@ -1017,12 +1017,12 @@ static long tw_chrdev_ioctl(struct file *file, unsigned int cmd, unsigned long a
 	}
 
 	/* Now copy the response to userspace */
-	if (copy_to_user(argp, tw_ioctl, sizeof(TW_New_Ioctl) + data_buffer_length - 1))
+	if (copy_to_user(argp, tw_ioctl, sizeof(TW_New_Ioctl) + data_buffer_length))
 		goto out2;
 	retval = 0;
 out2:
 	/* Now free ioctl buf memory */
-	dma_free_coherent(&tw_dev->tw_pci_dev->dev, data_buffer_length_adjusted+sizeof(TW_New_Ioctl) - 1, cpu_addr, dma_handle);
+	dma_free_coherent(&tw_dev->tw_pci_dev->dev, data_buffer_length_adjusted + sizeof(TW_New_Ioctl), cpu_addr, dma_handle);
 out:
 	mutex_unlock(&tw_dev->ioctl_lock);
 	mutex_unlock(&tw_mutex);
diff --git a/drivers/scsi/3w-xxxx.h b/drivers/scsi/3w-xxxx.h
index e8f3f081b7d8..120a087bdf3c 100644
--- a/drivers/scsi/3w-xxxx.h
+++ b/drivers/scsi/3w-xxxx.h
@@ -348,7 +348,7 @@ typedef struct TAG_TW_New_Ioctl {
 	unsigned int data_buffer_length;
 	unsigned char padding [508];
 	TW_Command firmware_command;
-	char data_buffer[1];
+	char data_buffer[];
 } TW_New_Ioctl;
 
 /* GetParam descriptor */
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 955cb69a5418..03e71e3d5e5b 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -2,9 +2,10 @@
 menu "SCSI device support"
 
 config SCSI_MOD
-       tristate
-       default y if SCSI=n || SCSI=y
-       default m if SCSI=m
+	tristate
+	default y if SCSI=n || SCSI=y
+	default m if SCSI=m
+	depends on BLOCK
 
 config RAID_ATTRS
 	tristate "RAID Transport Class"
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index 928099163f0f..f2f3405cdec5 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -194,7 +194,7 @@ struct ahd_linux_iocell_opts
 #define AIC79XX_PRECOMP_INDEX	0
 #define AIC79XX_SLEWRATE_INDEX	1
 #define AIC79XX_AMPLITUDE_INDEX	2
-static const struct ahd_linux_iocell_opts aic79xx_iocell_info[] =
+static struct ahd_linux_iocell_opts aic79xx_iocell_info[] __ro_after_init =
 {
 	AIC79XX_DEFAULT_IOOPTS,
 	AIC79XX_DEFAULT_IOOPTS,
diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c
index 9aafe0002ab1..05e1a63e00c3 100644
--- a/drivers/scsi/csiostor/csio_scsi.c
+++ b/drivers/scsi/csiostor/csio_scsi.c
@@ -1366,9 +1366,9 @@ csio_show_hw_state(struct device *dev,
 	struct csio_hw *hw = csio_lnode_to_hw(ln);
 
 	if (csio_is_hw_ready(hw))
-		return snprintf(buf, PAGE_SIZE, "ready\n");
-	else
-		return snprintf(buf, PAGE_SIZE, "not ready\n");
+		return sysfs_emit(buf, "ready\n");
+
+	return sysfs_emit(buf, "not ready\n");
 }
 
 /* Device reset */
@@ -1430,7 +1430,7 @@ csio_show_dbg_level(struct device *dev,
 {
 	struct csio_lnode *ln = shost_priv(class_to_shost(dev));
 
-	return snprintf(buf, PAGE_SIZE, "%x\n", ln->params.log_level);
+	return sysfs_emit(buf, "%x\n", ln->params.log_level);
 }
 
 /* Store debug level */
@@ -1476,7 +1476,7 @@ csio_show_num_reg_rnodes(struct device *dev,
 {
 	struct csio_lnode *ln = shost_priv(class_to_shost(dev));
 
-	return snprintf(buf, PAGE_SIZE, "%d\n", ln->num_reg_rnodes);
+	return sysfs_emit(buf, "%d\n", ln->num_reg_rnodes);
 }
 
 static DEVICE_ATTR(num_reg_rnodes, S_IRUGO, csio_show_num_reg_rnodes, NULL);
diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c
index e7be95ee7d64..cd1324ec742d 100644
--- a/drivers/scsi/cxlflash/main.c
+++ b/drivers/scsi/cxlflash/main.c
@@ -132,7 +132,7 @@ static void process_cmd_err(struct afu_cmd *cmd, struct scsi_cmnd *scp)
 			break;
 		case SISL_AFU_RC_OUT_OF_DATA_BUFS:
 			/* Retry */
-			scp->result = (DID_ALLOC_FAILURE << 16);
+			scp->result = (DID_ERROR << 16);
 			break;
 		default:
 			scp->result = (DID_ERROR << 16);
diff --git a/drivers/scsi/esas2r/atioctl.h b/drivers/scsi/esas2r/atioctl.h
index ff2ad9b38575..dd3437412ffc 100644
--- a/drivers/scsi/esas2r/atioctl.h
+++ b/drivers/scsi/esas2r/atioctl.h
@@ -831,6 +831,7 @@ struct __packed atto_hba_trace {
 	u32 total_length;
 	u32 trace_mask;
 	u8 reserved2[48];
+	u8 contents[];
 };
 
 #define ATTO_FUNC_SCSI_PASS_THRU     0x04
diff --git a/drivers/scsi/esas2r/esas2r_ioctl.c b/drivers/scsi/esas2r/esas2r_ioctl.c
index 08f4e43c7d9e..e003d923acbf 100644
--- a/drivers/scsi/esas2r/esas2r_ioctl.c
+++ b/drivers/scsi/esas2r/esas2r_ioctl.c
@@ -947,10 +947,9 @@ static int hba_ioctl_callback(struct esas2r_adapter *a,
 					break;
 				}
 
-				memcpy(trc + 1,
+				memcpy(trc->contents,
 				       a->fw_coredump_buff + offset,
 				       len);
-
 				hi->data_length = len;
 			} else if (trc->trace_func == ATTO_TRC_TF_RESET) {
 				memset(a->fw_coredump_buff, 0,
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index 24c83bc4f5dc..9aebf4a26b13 100644
--- a/drivers/scsi/hisi_sas/hisi_sas.h
+++ b/drivers/scsi/hisi_sas/hisi_sas.h
@@ -649,6 +649,7 @@ extern void hisi_sas_phy_enable(struct hisi_hba *hisi_hba, int phy_no,
 				int enable);
 extern void hisi_sas_phy_down(struct hisi_hba *hisi_hba, int phy_no, int rdy,
 			      gfp_t gfp_flags);
+extern void hisi_sas_phy_bcast(struct hisi_sas_phy *phy);
 extern void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba,
 				    struct sas_task *task,
 				    struct hisi_sas_slot *slot);
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 33af5b8dede2..699b07abb6b0 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -1341,6 +1341,7 @@ static void hisi_sas_refresh_port_id(struct hisi_hba *hisi_hba)
 
 static void hisi_sas_rescan_topology(struct hisi_hba *hisi_hba, u32 state)
 {
+	struct sas_ha_struct *sas_ha = &hisi_hba->sha;
 	struct asd_sas_port *_sas_port = NULL;
 	int phy_no;
 
@@ -1369,6 +1370,12 @@ static void hisi_sas_rescan_topology(struct hisi_hba *hisi_hba, u32 state)
 			hisi_sas_phy_down(hisi_hba, phy_no, 0, GFP_KERNEL);
 		}
 	}
+	/*
+	 * Ensure any bcast events are processed prior to calling async nexus
+	 * reset calls from hisi_sas_clear_nexus_ha() ->
+	 * hisi_sas_async_I_T_nexus_reset()
+	 */
+	sas_drain_work(sas_ha);
 }
 
 static void hisi_sas_reset_init_all_devices(struct hisi_hba *hisi_hba)
@@ -1527,9 +1534,9 @@ static int hisi_sas_controller_reset(struct hisi_hba *hisi_hba)
 		clear_bit(HISI_SAS_RESETTING_BIT, &hisi_hba->flags);
 		return rc;
 	}
+	clear_bit(HISI_SAS_HW_FAULT_BIT, &hisi_hba->flags);
 
 	hisi_sas_controller_reset_done(hisi_hba);
-	clear_bit(HISI_SAS_HW_FAULT_BIT, &hisi_hba->flags);
 	dev_info(dev, "controller reset complete\n");
 
 	return 0;
@@ -1816,12 +1823,14 @@ 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);
 	ASYNC_DOMAIN_EXCLUSIVE(async);
-	int i;
+	int i, ret;
 
 	queue_work(hisi_hba->wq, &r.work);
 	wait_for_completion(r.completion);
-	if (!r.done)
-		return TMF_RESP_FUNC_FAILED;
+	if (!r.done) {
+		ret = TMF_RESP_FUNC_FAILED;
+		goto out;
+	}
 
 	for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) {
 		struct hisi_sas_device *sas_dev = &hisi_hba->devices[i];
@@ -1838,7 +1847,9 @@ static int hisi_sas_clear_nexus_ha(struct sas_ha_struct *sas_ha)
 	async_synchronize_full_domain(&async);
 	hisi_sas_release_tasks(hisi_hba);
 
-	return TMF_RESP_FUNC_COMPLETE;
+	ret = TMF_RESP_FUNC_COMPLETE;
+out:
+	return ret;
 }
 
 static int hisi_sas_query_task(struct sas_task *task)
@@ -1982,6 +1993,22 @@ void hisi_sas_phy_down(struct hisi_hba *hisi_hba, int phy_no, int rdy,
 }
 EXPORT_SYMBOL_GPL(hisi_sas_phy_down);
 
+void hisi_sas_phy_bcast(struct hisi_sas_phy *phy)
+{
+	struct asd_sas_phy *sas_phy = &phy->sas_phy;
+	struct hisi_hba	*hisi_hba = phy->hisi_hba;
+	struct sas_ha_struct *sha = &hisi_hba->sha;
+
+	if (test_bit(HISI_SAS_RESETTING_BIT, &hisi_hba->flags))
+		return;
+
+	if (test_bit(SAS_HA_FROZEN, &sha->state))
+		return;
+
+	sas_notify_port_event(sas_phy, PORTE_BROADCAST_RCVD, GFP_ATOMIC);
+}
+EXPORT_SYMBOL_GPL(hisi_sas_phy_bcast);
+
 void hisi_sas_sync_irqs(struct hisi_hba *hisi_hba)
 {
 	int i;
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
index 349546bacb2b..d643c5a49aa9 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
@@ -1412,9 +1412,7 @@ static irqreturn_t int_bcast_v1_hw(int irq, void *p)
 		goto end;
 	}
 
-	if (!test_bit(HISI_SAS_RESETTING_BIT, &hisi_hba->flags))
-		sas_notify_port_event(sas_phy, PORTE_BROADCAST_RCVD,
-				      GFP_ATOMIC);
+	hisi_sas_phy_bcast(phy);
 
 end:
 	hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT2,
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
index c37027276162..cded42f4ca44 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
@@ -2811,15 +2811,12 @@ static irqreturn_t int_phy_updown_v2_hw(int irq_no, void *p)
 static void phy_bcast_v2_hw(int phy_no, struct hisi_hba *hisi_hba)
 {
 	struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
-	struct asd_sas_phy *sas_phy = &phy->sas_phy;
 	u32 bcast_status;
 
 	hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 1);
 	bcast_status = hisi_sas_phy_read32(hisi_hba, phy_no, RX_PRIMS_STATUS);
-	if ((bcast_status & RX_BCAST_CHG_MSK) &&
-	    !test_bit(HISI_SAS_RESETTING_BIT, &hisi_hba->flags))
-		sas_notify_port_event(sas_phy, PORTE_BROADCAST_RCVD,
-				      GFP_ATOMIC);
+	if (bcast_status & RX_BCAST_CHG_MSK)
+		hisi_sas_phy_bcast(phy);
 	hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0,
 			     CHL_INT0_SL_RX_BCST_ACK_MSK);
 	hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 0);
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index d716e5632d0f..d56b4bfd2767 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -1626,15 +1626,12 @@ static irqreturn_t phy_down_v3_hw(int phy_no, struct hisi_hba *hisi_hba)
 static irqreturn_t phy_bcast_v3_hw(int phy_no, struct hisi_hba *hisi_hba)
 {
 	struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
-	struct asd_sas_phy *sas_phy = &phy->sas_phy;
 	u32 bcast_status;
 
 	hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 1);
 	bcast_status = hisi_sas_phy_read32(hisi_hba, phy_no, RX_PRIMS_STATUS);
-	if ((bcast_status & RX_BCAST_CHG_MSK) &&
-	    !test_bit(HISI_SAS_RESETTING_BIT, &hisi_hba->flags))
-		sas_notify_port_event(sas_phy, PORTE_BROADCAST_RCVD,
-				      GFP_ATOMIC);
+	if (bcast_status & RX_BCAST_CHG_MSK)
+		hisi_sas_phy_bcast(phy);
 	hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0,
 			     CHL_INT0_SL_RX_BCST_ACK_MSK);
 	hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 0);
@@ -2786,7 +2783,6 @@ static int slave_configure_v3_hw(struct scsi_device *sdev)
 	struct hisi_hba *hisi_hba = shost_priv(shost);
 	int ret = hisi_sas_slave_configure(sdev);
 	struct device *dev = hisi_hba->dev;
-	unsigned int max_sectors;
 
 	if (ret)
 		return ret;
@@ -2802,12 +2798,6 @@ static int slave_configure_v3_hw(struct scsi_device *sdev)
 		}
 	}
 
-	/* Set according to IOMMU IOVA caching limit */
-	max_sectors = min_t(size_t, queue_max_hw_sectors(sdev->request_queue),
-			    (PAGE_SIZE * 32) >> SECTOR_SHIFT);
-
-	blk_queue_max_hw_sectors(sdev->request_queue, max_sectors);
-
 	return 0;
 }
 
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index a47bcce3c9c7..f8e832b1bc46 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -6233,8 +6233,7 @@ static struct CommandList *cmd_alloc(struct ctlr_info *h)
 			offset = (i + 1) % HPSA_NRESERVED_CMDS;
 			continue;
 		}
-		set_bit(i & (BITS_PER_LONG - 1),
-			h->cmd_pool_bits + (i / BITS_PER_LONG));
+		set_bit(i, h->cmd_pool_bits);
 		break; /* it's ours now. */
 	}
 	hpsa_cmd_partial_init(h, i, c);
@@ -6261,8 +6260,7 @@ static void cmd_free(struct ctlr_info *h, struct CommandList *c)
 		int i;
 
 		i = c - h->cmd_pool;
-		clear_bit(i & (BITS_PER_LONG - 1),
-			  h->cmd_pool_bits + (i / BITS_PER_LONG));
+		clear_bit(i, h->cmd_pool_bits);
 	}
 }
 
@@ -8030,7 +8028,7 @@ out_disable:
 
 static void hpsa_free_cmd_pool(struct ctlr_info *h)
 {
-	kfree(h->cmd_pool_bits);
+	bitmap_free(h->cmd_pool_bits);
 	h->cmd_pool_bits = NULL;
 	if (h->cmd_pool) {
 		dma_free_coherent(&h->pdev->dev,
@@ -8052,9 +8050,7 @@ static void hpsa_free_cmd_pool(struct ctlr_info *h)
 
 static int hpsa_alloc_cmd_pool(struct ctlr_info *h)
 {
-	h->cmd_pool_bits = kcalloc(DIV_ROUND_UP(h->nr_cmds, BITS_PER_LONG),
-				   sizeof(unsigned long),
-				   GFP_KERNEL);
+	h->cmd_pool_bits = bitmap_zalloc(h->nr_cmds, GFP_KERNEL);
 	h->cmd_pool = dma_alloc_coherent(&h->pdev->dev,
 		    h->nr_cmds * sizeof(*h->cmd_pool),
 		    &h->cmd_pool_dhandle, GFP_KERNEL);
diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c
index f18b770626e6..7e8903718245 100644
--- a/drivers/scsi/hptiop.c
+++ b/drivers/scsi/hptiop.c
@@ -1044,10 +1044,7 @@ static int hptiop_queuecommand_lck(struct scsi_cmnd *scp)
 	req->channel = scp->device->channel;
 	req->target = scp->device->id;
 	req->lun = scp->device->lun;
-	req->header.size = cpu_to_le32(
-				sizeof(struct hpt_iop_request_scsi_command)
-				 - sizeof(struct hpt_iopsg)
-				 + sg_count * sizeof(struct hpt_iopsg));
+	req->header.size = cpu_to_le32(struct_size(req, sg_list, sg_count));
 
 	memcpy(req->cdb, scp->cmnd, sizeof(req->cdb));
 	hba->ops->post_req(hba, _req);
@@ -1397,8 +1394,8 @@ static int hptiop_probe(struct pci_dev *pcidev, const struct pci_device_id *id)
 	host->cmd_per_lun = le32_to_cpu(iop_config.max_requests);
 	host->max_cmd_len = 16;
 
-	req_size = sizeof(struct hpt_iop_request_scsi_command)
-		+ sizeof(struct hpt_iopsg) * (hba->max_sg_descriptors - 1);
+	req_size = struct_size((struct hpt_iop_request_scsi_command *)0,
+			       sg_list, hba->max_sg_descriptors);
 	if ((req_size & 0x1f) != 0)
 		req_size = (req_size + 0x1f) & ~0x1f;
 
diff --git a/drivers/scsi/hptiop.h b/drivers/scsi/hptiop.h
index 363d5a16243f..394ef6aa469e 100644
--- a/drivers/scsi/hptiop.h
+++ b/drivers/scsi/hptiop.h
@@ -228,7 +228,7 @@ struct hpt_iop_request_scsi_command {
 	u8     pad1;
 	u8     cdb[16];
 	__le32 dataxfer_length;
-	struct hpt_iopsg sg_list[1];
+	struct hpt_iopsg sg_list[];
 };
 
 struct hpt_iop_request_ioctl_command {
@@ -237,7 +237,7 @@ struct hpt_iop_request_ioctl_command {
 	__le32 inbuf_size;
 	__le32 outbuf_size;
 	__le32 bytes_returned;
-	u8     buf[1];
+	u8     buf[];
 	/* out data should be put at buf[(inbuf_size+3)&~3] */
 };
 
diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
index eee1a24f7e15..e8770310a64b 100644
--- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
+++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
@@ -444,7 +444,7 @@ static void ibmvscsis_disconnect(struct work_struct *work)
 		break;
 
 	/*
-	 * Can transition from this state to to unconfiguring
+	 * Can transition from this state to unconfiguring
 	 * or err disconnect.
 	 */
 	case ERR_DISCONNECT_RECONNECT:
diff --git a/drivers/scsi/initio.c b/drivers/scsi/initio.c
index f585d6e5fab9..375261d67619 100644
--- a/drivers/scsi/initio.c
+++ b/drivers/scsi/initio.c
@@ -1166,7 +1166,7 @@ static void tulip_scsi(struct initio_host * host)
 			return;
 		}
 		if (host->jsint & (TSS_FUNC_COMP | TSS_BUS_SERV)) {	/* func complete or Bus service */
-			if ((scb = host->active) != NULL)
+			if (host->active)
 				initio_next_state(host);
 			return;
 		}
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 29b1bd755afe..5fb1f364e815 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -595,6 +595,8 @@ iscsi_sw_tcp_conn_create(struct iscsi_cls_session *cls_session,
 	INIT_WORK(&conn->recvwork, iscsi_sw_tcp_recv_data_work);
 	tcp_sw_conn->queue_recv = iscsi_recv_from_iscsi_q;
 
+	mutex_init(&tcp_sw_conn->sock_lock);
+
 	tfm = crypto_alloc_ahash("crc32c", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(tfm))
 		goto free_conn;
@@ -629,11 +631,15 @@ free_conn:
 
 static void iscsi_sw_tcp_release_conn(struct iscsi_conn *conn)
 {
-	struct iscsi_session *session = conn->session;
 	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
 	struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data;
 	struct socket *sock = tcp_sw_conn->sock;
 
+	/*
+	 * The iscsi transport class will make sure we are not called in
+	 * parallel with start, stop, bind and destroys. However, this can be
+	 * called twice if userspace does a stop then a destroy.
+	 */
 	if (!sock)
 		return;
 
@@ -649,9 +655,9 @@ static void iscsi_sw_tcp_release_conn(struct iscsi_conn *conn)
 
 	iscsi_suspend_rx(conn);
 
-	spin_lock_bh(&session->frwd_lock);
+	mutex_lock(&tcp_sw_conn->sock_lock);
 	tcp_sw_conn->sock = NULL;
-	spin_unlock_bh(&session->frwd_lock);
+	mutex_unlock(&tcp_sw_conn->sock_lock);
 	sockfd_put(sock);
 }
 
@@ -703,7 +709,6 @@ iscsi_sw_tcp_conn_bind(struct iscsi_cls_session *cls_session,
 		       struct iscsi_cls_conn *cls_conn, uint64_t transport_eph,
 		       int is_leading)
 {
-	struct iscsi_session *session = cls_session->dd_data;
 	struct iscsi_conn *conn = cls_conn->dd_data;
 	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
 	struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data;
@@ -723,10 +728,10 @@ iscsi_sw_tcp_conn_bind(struct iscsi_cls_session *cls_session,
 	if (err)
 		goto free_socket;
 
-	spin_lock_bh(&session->frwd_lock);
+	mutex_lock(&tcp_sw_conn->sock_lock);
 	/* bind iSCSI connection and socket */
 	tcp_sw_conn->sock = sock;
-	spin_unlock_bh(&session->frwd_lock);
+	mutex_unlock(&tcp_sw_conn->sock_lock);
 
 	/* setup Socket parameters */
 	sk = sock->sk;
@@ -763,8 +768,15 @@ static int iscsi_sw_tcp_conn_set_param(struct iscsi_cls_conn *cls_conn,
 		break;
 	case ISCSI_PARAM_DATADGST_EN:
 		iscsi_set_param(cls_conn, param, buf, buflen);
+
+		mutex_lock(&tcp_sw_conn->sock_lock);
+		if (!tcp_sw_conn->sock) {
+			mutex_unlock(&tcp_sw_conn->sock_lock);
+			return -ENOTCONN;
+		}
 		tcp_sw_conn->sendpage = conn->datadgst_en ?
 			sock_no_sendpage : tcp_sw_conn->sock->ops->sendpage;
+		mutex_unlock(&tcp_sw_conn->sock_lock);
 		break;
 	case ISCSI_PARAM_MAX_R2T:
 		return iscsi_tcp_set_max_r2t(conn, buf);
@@ -779,8 +791,8 @@ static int iscsi_sw_tcp_conn_get_param(struct iscsi_cls_conn *cls_conn,
 				       enum iscsi_param param, char *buf)
 {
 	struct iscsi_conn *conn = cls_conn->dd_data;
-	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
-	struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data;
+	struct iscsi_sw_tcp_conn *tcp_sw_conn;
+	struct iscsi_tcp_conn *tcp_conn;
 	struct sockaddr_in6 addr;
 	struct socket *sock;
 	int rc;
@@ -790,21 +802,36 @@ static int iscsi_sw_tcp_conn_get_param(struct iscsi_cls_conn *cls_conn,
 	case ISCSI_PARAM_CONN_ADDRESS:
 	case ISCSI_PARAM_LOCAL_PORT:
 		spin_lock_bh(&conn->session->frwd_lock);
-		if (!tcp_sw_conn || !tcp_sw_conn->sock) {
+		if (!conn->session->leadconn) {
 			spin_unlock_bh(&conn->session->frwd_lock);
 			return -ENOTCONN;
 		}
-		sock = tcp_sw_conn->sock;
-		sock_hold(sock->sk);
+		/*
+		 * The conn has been setup and bound, so just grab a ref
+		 * incase a destroy runs while we are in the net layer.
+		 */
+		iscsi_get_conn(conn->cls_conn);
 		spin_unlock_bh(&conn->session->frwd_lock);
 
+		tcp_conn = conn->dd_data;
+		tcp_sw_conn = tcp_conn->dd_data;
+
+		mutex_lock(&tcp_sw_conn->sock_lock);
+		sock = tcp_sw_conn->sock;
+		if (!sock) {
+			rc = -ENOTCONN;
+			goto sock_unlock;
+		}
+
 		if (param == ISCSI_PARAM_LOCAL_PORT)
 			rc = kernel_getsockname(sock,
 						(struct sockaddr *)&addr);
 		else
 			rc = kernel_getpeername(sock,
 						(struct sockaddr *)&addr);
-		sock_put(sock->sk);
+sock_unlock:
+		mutex_unlock(&tcp_sw_conn->sock_lock);
+		iscsi_put_conn(conn->cls_conn);
 		if (rc < 0)
 			return rc;
 
@@ -842,17 +869,21 @@ static int iscsi_sw_tcp_host_get_param(struct Scsi_Host *shost,
 		}
 		tcp_conn = conn->dd_data;
 		tcp_sw_conn = tcp_conn->dd_data;
-		sock = tcp_sw_conn->sock;
-		if (!sock) {
-			spin_unlock_bh(&session->frwd_lock);
-			return -ENOTCONN;
-		}
-		sock_hold(sock->sk);
+		/*
+		 * The conn has been setup and bound, so just grab a ref
+		 * incase a destroy runs while we are in the net layer.
+		 */
+		iscsi_get_conn(conn->cls_conn);
 		spin_unlock_bh(&session->frwd_lock);
 
-		rc = kernel_getsockname(sock,
-					(struct sockaddr *)&addr);
-		sock_put(sock->sk);
+		mutex_lock(&tcp_sw_conn->sock_lock);
+		sock = tcp_sw_conn->sock;
+		if (!sock)
+			rc = -ENOTCONN;
+		else
+			rc = kernel_getsockname(sock, (struct sockaddr *)&addr);
+		mutex_unlock(&tcp_sw_conn->sock_lock);
+		iscsi_put_conn(conn->cls_conn);
 		if (rc < 0)
 			return rc;
 
diff --git a/drivers/scsi/iscsi_tcp.h b/drivers/scsi/iscsi_tcp.h
index 850a018aefb9..68e14a344904 100644
--- a/drivers/scsi/iscsi_tcp.h
+++ b/drivers/scsi/iscsi_tcp.h
@@ -28,6 +28,9 @@ struct iscsi_sw_tcp_send {
 
 struct iscsi_sw_tcp_conn {
 	struct socket		*sock;
+	/* Taken when accessing the sock from the netlink/sysfs interface */
+	struct mutex		sock_lock;
+
 	struct work_struct	recvwork;
 	bool			queue_recv;
 
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c
index fa2209080cc2..5ce251830104 100644
--- a/drivers/scsi/libsas/sas_expander.c
+++ b/drivers/scsi/libsas/sas_expander.c
@@ -67,7 +67,7 @@ static int smp_execute_task_sg(struct domain_device *dev,
 		res = i->dft->lldd_execute_task(task, GFP_KERNEL);
 
 		if (res) {
-			del_timer(&task->slow_task->timer);
+			del_timer_sync(&task->slow_task->timer);
 			pr_notice("executing SMP task failed:%d\n", res);
 			break;
 		}
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index e6a083d098a1..9ad233b40a9e 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -68,8 +68,6 @@ struct lpfc_sli2_slim;
 #define LPFC_MIN_TGT_QDEPTH	10
 #define LPFC_MAX_TGT_QDEPTH	0xFFFF
 
-#define  LPFC_MAX_BUCKET_COUNT 20	/* Maximum no. of buckets for stat data
-					   collection. */
 /*
  * Following time intervals are used of adjusting SCSI device
  * queue depths when there are driver resource error or Firmware
@@ -405,6 +403,7 @@ struct lpfc_trunk_link  {
 				     link1,
 				     link2,
 				     link3;
+	u32 phy_lnk_speed;
 };
 
 /* Format of congestion module parameters */
@@ -732,8 +731,6 @@ struct lpfc_vport {
 	struct lpfc_debugfs_trc *disc_trc;
 	atomic_t disc_trc_cnt;
 #endif
-	uint8_t stat_data_enabled;
-	uint8_t stat_data_blocked;
 	struct list_head rcv_buffer_list;
 	unsigned long rcv_buffer_time_stamp;
 	uint32_t vport_flag;
@@ -1436,13 +1433,6 @@ struct lpfc_hba {
 	 */
 #define QUE_BUFTAG_BIT  (1<<31)
 	uint32_t buffer_tag_count;
-	/* data structure used for latency data collection */
-#define LPFC_NO_BUCKET	   0
-#define LPFC_LINEAR_BUCKET 1
-#define LPFC_POWER2_BUCKET 2
-	uint8_t  bucket_type;
-	uint32_t bucket_base;
-	uint32_t bucket_step;
 
 /* Maximum number of events that can be outstanding at any time*/
 #define LPFC_MAX_EVT_COUNT 512
@@ -1564,16 +1554,13 @@ struct lpfc_hba {
 		/* cgn_reg_signal and cgn_init_reg_signal use
 		 * enum fc_edc_cg_signal_cap_types
 		 */
-	u16 cgn_fpin_frequency;
+	u16 cgn_fpin_frequency;		/* In units of msecs */
 #define LPFC_FPIN_INIT_FREQ	0xffff
 	u32 cgn_sig_freq;
 	u32 cgn_acqe_cnt;
 
 	/* RX monitor handling for CMF */
-	struct rxtable_entry *rxtable;  /* RX_monitor information */
-	atomic_t rxtable_idx_head;
-#define LPFC_RXMONITOR_TABLE_IN_USE     (LPFC_MAX_RXMONITOR_ENTRY + 73)
-	atomic_t rxtable_idx_tail;
+	struct lpfc_rx_info_monitor *rx_monitor;
 	atomic_t rx_max_read_cnt;       /* Maximum read bytes */
 	uint64_t rx_block_cnt;
 
@@ -1610,10 +1597,11 @@ struct lpfc_hba {
 
 	char os_host_name[MAXHOSTNAMELEN];
 
-	/* SCSI host template information - for physical port */
-	struct scsi_host_template port_template;
-	/* SCSI host template information - for all vports */
-	struct scsi_host_template vport_template;
+	/* LD Signaling */
+	u32 degrade_activate_threshold;
+	u32 degrade_deactivate_threshold;
+	u32 fec_degrade_interval;
+
 	atomic_t dbg_log_idx;
 	atomic_t dbg_log_cnt;
 	atomic_t dbg_log_dmping;
@@ -1622,7 +1610,7 @@ struct lpfc_hba {
 
 #define LPFC_MAX_RXMONITOR_ENTRY	800
 #define LPFC_MAX_RXMONITOR_DUMP		32
-struct rxtable_entry {
+struct rx_info_entry {
 	uint64_t cmf_bytes;	/* Total no of read bytes for CMF_SYNC_WQE */
 	uint64_t total_bytes;   /* Total no of read bytes requested */
 	uint64_t rcv_bytes;     /* Total no of read bytes completed */
@@ -1637,6 +1625,13 @@ struct rxtable_entry {
 	uint32_t timer_interval;
 };
 
+struct lpfc_rx_info_monitor {
+	struct rx_info_entry *ring; /* info organized in a circular buffer */
+	u32 head_idx, tail_idx; /* index to head/tail of ring */
+	spinlock_t lock; /* spinlock for ring */
+	u32 entries; /* storing number entries/size of ring */
+};
+
 static inline struct Scsi_Host *
 lpfc_shost_from_vport(struct lpfc_vport *vport)
 {
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 09cf2cd0ae60..ef1481326fd7 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -4093,333 +4093,6 @@ lpfc_static_vport_show(struct device *dev, struct device_attribute *attr,
  */
 static DEVICE_ATTR_RO(lpfc_static_vport);
 
-/**
- * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file
- * @dev: Pointer to class device.
- * @attr: Unused.
- * @buf: Data buffer.
- * @count: Size of the data buffer.
- *
- * This function get called when a user write to the lpfc_stat_data_ctrl
- * sysfs file. This function parse the command written to the sysfs file
- * and take appropriate action. These commands are used for controlling
- * driver statistical data collection.
- * Following are the command this function handles.
- *
- *    setbucket <bucket_type> <base> <step>
- *			       = Set the latency buckets.
- *    destroybucket            = destroy all the buckets.
- *    start                    = start data collection
- *    stop                     = stop data collection
- *    reset                    = reset the collected data
- **/
-static ssize_t
-lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr,
-			  const char *buf, size_t count)
-{
-	struct Scsi_Host  *shost = class_to_shost(dev);
-	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
-	struct lpfc_hba   *phba = vport->phba;
-#define LPFC_MAX_DATA_CTRL_LEN 1024
-	static char bucket_data[LPFC_MAX_DATA_CTRL_LEN];
-	unsigned long i;
-	char *str_ptr, *token;
-	struct lpfc_vport **vports;
-	struct Scsi_Host *v_shost;
-	char *bucket_type_str, *base_str, *step_str;
-	unsigned long base, step, bucket_type;
-
-	if (!strncmp(buf, "setbucket", strlen("setbucket"))) {
-		if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1))
-			return -EINVAL;
-
-		strncpy(bucket_data, buf, LPFC_MAX_DATA_CTRL_LEN);
-		str_ptr = &bucket_data[0];
-		/* Ignore this token - this is command token */
-		token = strsep(&str_ptr, "\t ");
-		if (!token)
-			return -EINVAL;
-
-		bucket_type_str = strsep(&str_ptr, "\t ");
-		if (!bucket_type_str)
-			return -EINVAL;
-
-		if (!strncmp(bucket_type_str, "linear", strlen("linear")))
-			bucket_type = LPFC_LINEAR_BUCKET;
-		else if (!strncmp(bucket_type_str, "power2", strlen("power2")))
-			bucket_type = LPFC_POWER2_BUCKET;
-		else
-			return -EINVAL;
-
-		base_str = strsep(&str_ptr, "\t ");
-		if (!base_str)
-			return -EINVAL;
-		base = simple_strtoul(base_str, NULL, 0);
-
-		step_str = strsep(&str_ptr, "\t ");
-		if (!step_str)
-			return -EINVAL;
-		step = simple_strtoul(step_str, NULL, 0);
-		if (!step)
-			return -EINVAL;
-
-		/* Block the data collection for every vport */
-		vports = lpfc_create_vport_work_array(phba);
-		if (vports == NULL)
-			return -ENOMEM;
-
-		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
-			v_shost = lpfc_shost_from_vport(vports[i]);
-			spin_lock_irq(v_shost->host_lock);
-			/* Block and reset data collection */
-			vports[i]->stat_data_blocked = 1;
-			if (vports[i]->stat_data_enabled)
-				lpfc_vport_reset_stat_data(vports[i]);
-			spin_unlock_irq(v_shost->host_lock);
-		}
-
-		/* Set the bucket attributes */
-		phba->bucket_type = bucket_type;
-		phba->bucket_base = base;
-		phba->bucket_step = step;
-
-		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
-			v_shost = lpfc_shost_from_vport(vports[i]);
-
-			/* Unblock data collection */
-			spin_lock_irq(v_shost->host_lock);
-			vports[i]->stat_data_blocked = 0;
-			spin_unlock_irq(v_shost->host_lock);
-		}
-		lpfc_destroy_vport_work_array(phba, vports);
-		return strlen(buf);
-	}
-
-	if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) {
-		vports = lpfc_create_vport_work_array(phba);
-		if (vports == NULL)
-			return -ENOMEM;
-
-		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
-			v_shost = lpfc_shost_from_vport(vports[i]);
-			spin_lock_irq(shost->host_lock);
-			vports[i]->stat_data_blocked = 1;
-			lpfc_free_bucket(vport);
-			vport->stat_data_enabled = 0;
-			vports[i]->stat_data_blocked = 0;
-			spin_unlock_irq(shost->host_lock);
-		}
-		lpfc_destroy_vport_work_array(phba, vports);
-		phba->bucket_type = LPFC_NO_BUCKET;
-		phba->bucket_base = 0;
-		phba->bucket_step = 0;
-		return strlen(buf);
-	}
-
-	if (!strncmp(buf, "start", strlen("start"))) {
-		/* If no buckets configured return error */
-		if (phba->bucket_type == LPFC_NO_BUCKET)
-			return -EINVAL;
-		spin_lock_irq(shost->host_lock);
-		if (vport->stat_data_enabled) {
-			spin_unlock_irq(shost->host_lock);
-			return strlen(buf);
-		}
-		lpfc_alloc_bucket(vport);
-		vport->stat_data_enabled = 1;
-		spin_unlock_irq(shost->host_lock);
-		return strlen(buf);
-	}
-
-	if (!strncmp(buf, "stop", strlen("stop"))) {
-		spin_lock_irq(shost->host_lock);
-		if (vport->stat_data_enabled == 0) {
-			spin_unlock_irq(shost->host_lock);
-			return strlen(buf);
-		}
-		lpfc_free_bucket(vport);
-		vport->stat_data_enabled = 0;
-		spin_unlock_irq(shost->host_lock);
-		return strlen(buf);
-	}
-
-	if (!strncmp(buf, "reset", strlen("reset"))) {
-		if ((phba->bucket_type == LPFC_NO_BUCKET)
-			|| !vport->stat_data_enabled)
-			return strlen(buf);
-		spin_lock_irq(shost->host_lock);
-		vport->stat_data_blocked = 1;
-		lpfc_vport_reset_stat_data(vport);
-		vport->stat_data_blocked = 0;
-		spin_unlock_irq(shost->host_lock);
-		return strlen(buf);
-	}
-	return -EINVAL;
-}
-
-
-/**
- * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file
- * @dev: Pointer to class device.
- * @attr: Unused.
- * @buf: Data buffer.
- *
- * This function is the read call back function for
- * lpfc_stat_data_ctrl sysfs file. This function report the
- * current statistical data collection state.
- **/
-static ssize_t
-lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr,
-			 char *buf)
-{
-	struct Scsi_Host  *shost = class_to_shost(dev);
-	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
-	struct lpfc_hba   *phba = vport->phba;
-	int index = 0;
-	int i;
-	char *bucket_type;
-	unsigned long bucket_value;
-
-	switch (phba->bucket_type) {
-	case LPFC_LINEAR_BUCKET:
-		bucket_type = "linear";
-		break;
-	case LPFC_POWER2_BUCKET:
-		bucket_type = "power2";
-		break;
-	default:
-		bucket_type = "No Bucket";
-		break;
-	}
-
-	sprintf(&buf[index], "Statistical Data enabled :%d, "
-		"blocked :%d, Bucket type :%s, Bucket base :%d,"
-		" Bucket step :%d\nLatency Ranges :",
-		vport->stat_data_enabled, vport->stat_data_blocked,
-		bucket_type, phba->bucket_base, phba->bucket_step);
-	index = strlen(buf);
-	if (phba->bucket_type != LPFC_NO_BUCKET) {
-		for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
-			if (phba->bucket_type == LPFC_LINEAR_BUCKET)
-				bucket_value = phba->bucket_base +
-					phba->bucket_step * i;
-			else
-				bucket_value = phba->bucket_base +
-				(1 << i) * phba->bucket_step;
-
-			if (index + 10 > PAGE_SIZE)
-				break;
-			sprintf(&buf[index], "%08ld ", bucket_value);
-			index = strlen(buf);
-		}
-	}
-	sprintf(&buf[index], "\n");
-	return strlen(buf);
-}
-
-/*
- * Sysfs attribute to control the statistical data collection.
- */
-static DEVICE_ATTR_RW(lpfc_stat_data_ctrl);
-
-/*
- * lpfc_drvr_stat_data: sysfs attr to get driver statistical data.
- */
-
-/*
- * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN
- * for each target.
- */
-#define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18)
-#define MAX_STAT_DATA_SIZE_PER_TARGET \
-	STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT)
-
-
-/**
- * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute
- * @filp: sysfs file
- * @kobj: Pointer to the kernel object
- * @bin_attr: Attribute object
- * @buf: Buffer pointer
- * @off: File offset
- * @count: Buffer size
- *
- * This function is the read call back function for lpfc_drvr_stat_data
- * sysfs file. This function export the statistical data to user
- * applications.
- **/
-static ssize_t
-sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj,
-		struct bin_attribute *bin_attr,
-		char *buf, loff_t off, size_t count)
-{
-	struct device *dev = container_of(kobj, struct device,
-		kobj);
-	struct Scsi_Host  *shost = class_to_shost(dev);
-	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
-	struct lpfc_hba   *phba = vport->phba;
-	int i = 0, index = 0;
-	unsigned long nport_index;
-	struct lpfc_nodelist *ndlp = NULL;
-	nport_index = (unsigned long)off /
-		MAX_STAT_DATA_SIZE_PER_TARGET;
-
-	if (!vport->stat_data_enabled || vport->stat_data_blocked
-		|| (phba->bucket_type == LPFC_NO_BUCKET))
-		return 0;
-
-	spin_lock_irq(shost->host_lock);
-	list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
-		if (!ndlp->lat_data)
-			continue;
-
-		if (nport_index > 0) {
-			nport_index--;
-			continue;
-		}
-
-		if ((index + MAX_STAT_DATA_SIZE_PER_TARGET)
-			> count)
-			break;
-
-		if (!ndlp->lat_data)
-			continue;
-
-		/* Print the WWN */
-		sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:",
-			ndlp->nlp_portname.u.wwn[0],
-			ndlp->nlp_portname.u.wwn[1],
-			ndlp->nlp_portname.u.wwn[2],
-			ndlp->nlp_portname.u.wwn[3],
-			ndlp->nlp_portname.u.wwn[4],
-			ndlp->nlp_portname.u.wwn[5],
-			ndlp->nlp_portname.u.wwn[6],
-			ndlp->nlp_portname.u.wwn[7]);
-
-		index = strlen(buf);
-
-		for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
-			sprintf(&buf[index], "%010u,",
-				ndlp->lat_data[i].cmd_count);
-			index = strlen(buf);
-		}
-		sprintf(&buf[index], "\n");
-		index = strlen(buf);
-	}
-	spin_unlock_irq(shost->host_lock);
-	return index;
-}
-
-static struct bin_attribute sysfs_drvr_stat_data_attr = {
-	.attr = {
-		.name = "lpfc_drvr_stat_data",
-		.mode = S_IRUSR,
-	},
-	.size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET,
-	.read = sysfs_drvr_stat_data_read,
-	.write = NULL,
-};
-
 /*
 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
 # connection.
@@ -6273,7 +5946,6 @@ static struct attribute *lpfc_hba_attrs[] = {
 	&dev_attr_lpfc_xlane_priority.attr,
 	&dev_attr_lpfc_sg_seg_cnt.attr,
 	&dev_attr_lpfc_max_scsicmpl_time.attr,
-	&dev_attr_lpfc_stat_data_ctrl.attr,
 	&dev_attr_lpfc_aer_support.attr,
 	&dev_attr_lpfc_aer_state_cleanup.attr,
 	&dev_attr_lpfc_sriov_nr_virtfn.attr,
@@ -6332,7 +6004,6 @@ static struct attribute *lpfc_vport_attrs[] = {
 	&dev_attr_npiv_info.attr,
 	&dev_attr_lpfc_enable_da_id.attr,
 	&dev_attr_lpfc_max_scsicmpl_time.attr,
-	&dev_attr_lpfc_stat_data_ctrl.attr,
 	&dev_attr_lpfc_static_vport.attr,
 	&dev_attr_cmf_info.attr,
 	NULL,
@@ -6545,17 +6216,14 @@ lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
 	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 	int error;
 
-	error = sysfs_create_bin_file(&shost->shost_dev.kobj,
-				      &sysfs_drvr_stat_data_attr);
-
 	/* Virtual ports do not need ctrl_reg and mbox */
-	if (error || vport->port_type == LPFC_NPIV_PORT)
-		goto out;
+	if (vport->port_type == LPFC_NPIV_PORT)
+		return 0;
 
 	error = sysfs_create_bin_file(&shost->shost_dev.kobj,
 				      &sysfs_ctlreg_attr);
 	if (error)
-		goto out_remove_stat_attr;
+		goto out;
 
 	error = sysfs_create_bin_file(&shost->shost_dev.kobj,
 				      &sysfs_mbox_attr);
@@ -6565,9 +6233,6 @@ lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
 	return 0;
 out_remove_ctlreg_attr:
 	sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
-out_remove_stat_attr:
-	sysfs_remove_bin_file(&shost->shost_dev.kobj,
-			&sysfs_drvr_stat_data_attr);
 out:
 	return error;
 }
@@ -6580,8 +6245,7 @@ void
 lpfc_free_sysfs_attr(struct lpfc_vport *vport)
 {
 	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
-	sysfs_remove_bin_file(&shost->shost_dev.kobj,
-		&sysfs_drvr_stat_data_attr);
+
 	/* Virtual ports do not need ctrl_reg and mbox */
 	if (vport->port_type == LPFC_NPIV_PORT)
 		return;
diff --git a/drivers/scsi/lpfc/lpfc_bsg.c b/drivers/scsi/lpfc/lpfc_bsg.c
index 9be3bb01a8ec..ac0c7ccf2eae 100644
--- a/drivers/scsi/lpfc/lpfc_bsg.c
+++ b/drivers/scsi/lpfc/lpfc_bsg.c
@@ -1977,8 +1977,6 @@ lpfc_sli4_bsg_set_loopback_mode(struct lpfc_hba *phba, int mode,
 static int
 lpfc_sli4_diag_fcport_reg_setup(struct lpfc_hba *phba)
 {
-	int rc;
-
 	if (phba->pport->fc_flag & FC_VFI_REGISTERED) {
 		lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
 				"3136 Port still had vfi registered: "
@@ -1988,8 +1986,7 @@ lpfc_sli4_diag_fcport_reg_setup(struct lpfc_hba *phba)
 				phba->vpi_ids[phba->pport->vpi]);
 		return -EINVAL;
 	}
-	rc = lpfc_issue_reg_vfi(phba->pport);
-	return rc;
+	return lpfc_issue_reg_vfi(phba->pport);
 }
 
 /**
diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h
index bcad91204328..d2d207791056 100644
--- a/drivers/scsi/lpfc/lpfc_crtn.h
+++ b/drivers/scsi/lpfc/lpfc_crtn.h
@@ -78,6 +78,7 @@ int lpfc_init_iocb_list(struct lpfc_hba *phba, int cnt);
 void lpfc_free_iocb_list(struct lpfc_hba *phba);
 int lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq,
 			struct lpfc_queue *drq, int count, int idx);
+int lpfc_read_lds_params(struct lpfc_hba *phba);
 uint32_t lpfc_calc_cmf_latency(struct lpfc_hba *phba);
 void lpfc_cmf_signal_init(struct lpfc_hba *phba);
 void lpfc_cmf_start(struct lpfc_hba *phba);
@@ -92,6 +93,14 @@ void lpfc_cgn_dump_rxmonitor(struct lpfc_hba *phba);
 void lpfc_cgn_update_stat(struct lpfc_hba *phba, uint32_t dtag);
 void lpfc_unblock_requests(struct lpfc_hba *phba);
 void lpfc_block_requests(struct lpfc_hba *phba);
+int lpfc_rx_monitor_create_ring(struct lpfc_rx_info_monitor *rx_monitor,
+				u32 entries);
+void lpfc_rx_monitor_destroy_ring(struct lpfc_rx_info_monitor *rx_monitor);
+void lpfc_rx_monitor_record(struct lpfc_rx_info_monitor *rx_monitor,
+			    struct rx_info_entry *entry);
+u32 lpfc_rx_monitor_report(struct lpfc_hba *phba,
+			   struct lpfc_rx_info_monitor *rx_monitor, char *buf,
+			   u32 buf_len, u32 max_read_entries);
 
 void lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *, LPFC_MBOXQ_t *);
 void lpfc_mbx_cmpl_reg_login(struct lpfc_hba *, LPFC_MBOXQ_t *);
@@ -454,6 +463,7 @@ extern const struct attribute_group *lpfc_hba_groups[];
 extern const struct attribute_group *lpfc_vport_groups[];
 extern struct scsi_host_template lpfc_template;
 extern struct scsi_host_template lpfc_template_nvme;
+extern struct scsi_host_template lpfc_vport_template;
 extern struct fc_function_template lpfc_transport_functions;
 extern struct fc_function_template lpfc_vport_transport_functions;
 
diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c
index 13dfe285493d..75fd2bfc212b 100644
--- a/drivers/scsi/lpfc/lpfc_ct.c
+++ b/drivers/scsi/lpfc/lpfc_ct.c
@@ -1509,7 +1509,7 @@ lpfc_cmpl_ct_cmd_gft_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 	struct lpfc_sli_ct_request *CTrsp;
 	int did;
 	struct lpfc_nodelist *ndlp = NULL;
-	struct lpfc_nodelist *ns_ndlp = NULL;
+	struct lpfc_nodelist *ns_ndlp = cmdiocb->ndlp;
 	uint32_t fc4_data_0, fc4_data_1;
 	u32 ulp_status = get_job_ulpstatus(phba, rspiocb);
 	u32 ulp_word4 = get_job_word4(phba, rspiocb);
@@ -1522,15 +1522,12 @@ lpfc_cmpl_ct_cmd_gft_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 			      ulp_status, ulp_word4, did);
 
 	/* Ignore response if link flipped after this request was made */
-	if ((uint32_t) cmdiocb->event_tag != phba->fc_eventTag) {
+	if ((uint32_t)cmdiocb->event_tag != phba->fc_eventTag) {
 		lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
 				 "9046 Event tag mismatch. Ignoring NS rsp\n");
 		goto out;
 	}
 
-	/* Preserve the nameserver node to release the reference. */
-	ns_ndlp = cmdiocb->ndlp;
-
 	if (ulp_status == IOSTAT_SUCCESS) {
 		/* Good status, continue checking */
 		CTrsp = (struct lpfc_sli_ct_request *)outp->virt;
@@ -2504,420 +2501,298 @@ lpfc_fdmi_change_check(struct lpfc_vport *vport)
 	}
 }
 
-/* Routines for all individual HBA attributes */
-static int
-lpfc_fdmi_hba_attr_wwnn(struct lpfc_vport *vport, struct lpfc_fdmi_attr_def *ad)
+static inline int
+lpfc_fdmi_set_attr_u32(void *attr, uint16_t attrtype, uint32_t attrval)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
+	struct lpfc_fdmi_attr_u32 *ae = attr;
+	int size = sizeof(*ae);
 
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
+	ae->type = cpu_to_be16(attrtype);
+	ae->len = cpu_to_be16(size);
+	ae->value_u32 = cpu_to_be32(attrval);
 
-	memcpy(&ae->un.AttrWWN, &vport->fc_sparam.nodeName,
-	       sizeof(struct lpfc_name));
-	size = FOURBYTES + sizeof(struct lpfc_name);
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RHBA_NODENAME);
 	return size;
 }
-static int
-lpfc_fdmi_hba_attr_manufacturer(struct lpfc_vport *vport,
-				struct lpfc_fdmi_attr_def *ad)
+
+static inline int
+lpfc_fdmi_set_attr_wwn(void *attr, uint16_t attrtype, struct lpfc_name *wwn)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t len, size;
+	struct lpfc_fdmi_attr_wwn *ae = attr;
+	int size = sizeof(*ae);
 
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
+	ae->type = cpu_to_be16(attrtype);
+	ae->len = cpu_to_be16(size);
+	/* WWN's assumed to be bytestreams - Big Endian presentation */
+	memcpy(ae->name, wwn,
+	       min_t(size_t, sizeof(struct lpfc_name), sizeof(__be64)));
 
-	/* This string MUST be consistent with other FC platforms
-	 * supported by Broadcom.
-	 */
-	strncpy(ae->un.AttrString,
-		"Emulex Corporation",
-		       sizeof(ae->un.AttrString));
-	len = strnlen(ae->un.AttrString,
-			  sizeof(ae->un.AttrString));
-	len += (len & 3) ? (4 - (len & 3)) : 4;
-	size = FOURBYTES + len;
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RHBA_MANUFACTURER);
 	return size;
 }
 
-static int
-lpfc_fdmi_hba_attr_sn(struct lpfc_vport *vport, struct lpfc_fdmi_attr_def *ad)
+static inline int
+lpfc_fdmi_set_attr_fullwwn(void *attr, uint16_t attrtype,
+			   struct lpfc_name *wwnn, struct lpfc_name *wwpn)
 {
-	struct lpfc_hba *phba = vport->phba;
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t len, size;
+	struct lpfc_fdmi_attr_fullwwn *ae = attr;
+	u8 *nname = ae->nname;
+	u8 *pname = ae->pname;
+	int size = sizeof(*ae);
 
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
+	ae->type = cpu_to_be16(attrtype);
+	ae->len = cpu_to_be16(size);
+	/* WWN's assumed to be bytestreams - Big Endian presentation */
+	memcpy(nname, wwnn,
+	       min_t(size_t, sizeof(struct lpfc_name), sizeof(__be64)));
+	memcpy(pname, wwpn,
+	       min_t(size_t, sizeof(struct lpfc_name), sizeof(__be64)));
 
-	strncpy(ae->un.AttrString, phba->SerialNumber,
-		sizeof(ae->un.AttrString));
-	len = strnlen(ae->un.AttrString,
-			  sizeof(ae->un.AttrString));
-	len += (len & 3) ? (4 - (len & 3)) : 4;
-	size = FOURBYTES + len;
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RHBA_SERIAL_NUMBER);
 	return size;
 }
 
-static int
-lpfc_fdmi_hba_attr_model(struct lpfc_vport *vport,
-			 struct lpfc_fdmi_attr_def *ad)
+static inline int
+lpfc_fdmi_set_attr_string(void *attr, uint16_t attrtype, char *attrstring)
 {
-	struct lpfc_hba *phba = vport->phba;
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t len, size;
+	struct lpfc_fdmi_attr_string *ae = attr;
+	int len, size;
 
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
+	/*
+	 * We are trusting the caller that if a fdmi string field
+	 * is capped at 64 bytes, the caller passes in a string of
+	 * 64 bytes or less.
+	 */
 
-	strncpy(ae->un.AttrString, phba->ModelName,
-		sizeof(ae->un.AttrString));
-	len = strnlen(ae->un.AttrString, sizeof(ae->un.AttrString));
+	strncpy(ae->value_string, attrstring, sizeof(ae->value_string));
+	len = strnlen(ae->value_string, sizeof(ae->value_string));
+	/* round string length to a 32bit boundary. Ensure there's a NULL */
 	len += (len & 3) ? (4 - (len & 3)) : 4;
+	/* size is Type/Len (4 bytes) plus string length */
 	size = FOURBYTES + len;
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RHBA_MODEL);
+
+	ae->type = cpu_to_be16(attrtype);
+	ae->len = cpu_to_be16(size);
+
 	return size;
 }
 
-static int
-lpfc_fdmi_hba_attr_description(struct lpfc_vport *vport,
-			       struct lpfc_fdmi_attr_def *ad)
+/* Bitfields for FC4 Types that can be reported */
+#define ATTR_FC4_CT	0x00000001
+#define ATTR_FC4_FCP	0x00000002
+#define ATTR_FC4_NVME	0x00000004
+
+static inline int
+lpfc_fdmi_set_attr_fc4types(void *attr, uint16_t attrtype, uint32_t typemask)
 {
-	struct lpfc_hba *phba = vport->phba;
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t len, size;
+	struct lpfc_fdmi_attr_fc4types *ae = attr;
+	int size = sizeof(*ae);
 
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
+	ae->type = cpu_to_be16(attrtype);
+	ae->len = cpu_to_be16(size);
+
+	if (typemask & ATTR_FC4_FCP)
+		ae->value_types[2] = 0x01; /* Type 0x8 - FCP */
+
+	if (typemask & ATTR_FC4_CT)
+		ae->value_types[7] = 0x01; /* Type 0x20 - CT */
+
+	if (typemask & ATTR_FC4_NVME)
+		ae->value_types[6] = 0x01; /* Type 0x28 - NVME */
 
-	strncpy(ae->un.AttrString, phba->ModelDesc,
-		sizeof(ae->un.AttrString));
-	len = strnlen(ae->un.AttrString,
-				  sizeof(ae->un.AttrString));
-	len += (len & 3) ? (4 - (len & 3)) : 4;
-	size = FOURBYTES + len;
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RHBA_MODEL_DESCRIPTION);
 	return size;
 }
 
+/* Routines for all individual HBA attributes */
 static int
-lpfc_fdmi_hba_attr_hdw_ver(struct lpfc_vport *vport,
-			   struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_hba_attr_wwnn(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_hba *phba = vport->phba;
-	lpfc_vpd_t *vp = &phba->vpd;
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t i, j, incr, size;
-
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
-
-	/* Convert JEDEC ID to ascii for hardware version */
-	incr = vp->rev.biuRev;
-	for (i = 0; i < 8; i++) {
-		j = (incr & 0xf);
-		if (j <= 9)
-			ae->un.AttrString[7 - i] =
-			    (char)((uint8_t) 0x30 +
-				   (uint8_t) j);
-		else
-			ae->un.AttrString[7 - i] =
-			    (char)((uint8_t) 0x61 +
-				   (uint8_t) (j - 10));
-		incr = (incr >> 4);
-	}
-	size = FOURBYTES + 8;
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RHBA_HARDWARE_VERSION);
-	return size;
+	return lpfc_fdmi_set_attr_wwn(attr, RHBA_NODENAME,
+			&vport->fc_sparam.nodeName);
 }
 
 static int
-lpfc_fdmi_hba_attr_drvr_ver(struct lpfc_vport *vport,
-			    struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_hba_attr_manufacturer(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t len, size;
+	/* This string MUST be consistent with other FC platforms
+	 * supported by Broadcom.
+	 */
+	return lpfc_fdmi_set_attr_string(attr, RHBA_MANUFACTURER,
+			"Emulex Corporation");
+}
 
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
+static int
+lpfc_fdmi_hba_attr_sn(struct lpfc_vport *vport, void *attr)
+{
+	struct lpfc_hba *phba = vport->phba;
 
-	strncpy(ae->un.AttrString, lpfc_release_version,
-		sizeof(ae->un.AttrString));
-	len = strnlen(ae->un.AttrString,
-			  sizeof(ae->un.AttrString));
-	len += (len & 3) ? (4 - (len & 3)) : 4;
-	size = FOURBYTES + len;
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RHBA_DRIVER_VERSION);
-	return size;
+	return lpfc_fdmi_set_attr_string(attr, RHBA_SERIAL_NUMBER,
+			phba->SerialNumber);
 }
 
 static int
-lpfc_fdmi_hba_attr_rom_ver(struct lpfc_vport *vport,
-			   struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_hba_attr_model(struct lpfc_vport *vport, void *attr)
 {
 	struct lpfc_hba *phba = vport->phba;
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t len, size;
-
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
 
-	if (phba->sli_rev == LPFC_SLI_REV4)
-		lpfc_decode_firmware_rev(phba, ae->un.AttrString, 1);
-	else
-		strncpy(ae->un.AttrString, phba->OptionROMVersion,
-			sizeof(ae->un.AttrString));
-	len = strnlen(ae->un.AttrString,
-			  sizeof(ae->un.AttrString));
-	len += (len & 3) ? (4 - (len & 3)) : 4;
-	size = FOURBYTES + len;
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RHBA_OPTION_ROM_VERSION);
-	return size;
+	return lpfc_fdmi_set_attr_string(attr, RHBA_MODEL,
+			phba->ModelName);
 }
 
 static int
-lpfc_fdmi_hba_attr_fmw_ver(struct lpfc_vport *vport,
-			   struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_hba_attr_description(struct lpfc_vport *vport, void *attr)
 {
 	struct lpfc_hba *phba = vport->phba;
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t len, size;
-
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
 
-	lpfc_decode_firmware_rev(phba, ae->un.AttrString, 1);
-	len = strnlen(ae->un.AttrString,
-			  sizeof(ae->un.AttrString));
-	len += (len & 3) ? (4 - (len & 3)) : 4;
-	size = FOURBYTES + len;
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RHBA_FIRMWARE_VERSION);
-	return size;
+	return lpfc_fdmi_set_attr_string(attr, RHBA_MODEL_DESCRIPTION,
+			phba->ModelDesc);
 }
 
 static int
-lpfc_fdmi_hba_attr_os_ver(struct lpfc_vport *vport,
-			  struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_hba_attr_hdw_ver(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t len, size;
+	struct lpfc_hba *phba = vport->phba;
+	lpfc_vpd_t *vp = &phba->vpd;
+	char buf[16] = { 0 };
 
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
+	snprintf(buf, sizeof(buf), "%08x", vp->rev.biuRev);
 
-	snprintf(ae->un.AttrString, sizeof(ae->un.AttrString), "%s %s %s",
-		 init_utsname()->sysname,
-		 init_utsname()->release,
-		 init_utsname()->version);
+	return lpfc_fdmi_set_attr_string(attr, RHBA_HARDWARE_VERSION, buf);
+}
 
-	len = strnlen(ae->un.AttrString, sizeof(ae->un.AttrString));
-	len += (len & 3) ? (4 - (len & 3)) : 4;
-	size = FOURBYTES + len;
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RHBA_OS_NAME_VERSION);
-	return size;
+static int
+lpfc_fdmi_hba_attr_drvr_ver(struct lpfc_vport *vport, void *attr)
+{
+	return lpfc_fdmi_set_attr_string(attr, RHBA_DRIVER_VERSION,
+			lpfc_release_version);
 }
 
 static int
-lpfc_fdmi_hba_attr_ct_len(struct lpfc_vport *vport,
-			  struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_hba_attr_rom_ver(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
+	struct lpfc_hba *phba = vport->phba;
+	char buf[64] = { 0 };
 
-	ae = &ad->AttrValue;
+	if (phba->sli_rev == LPFC_SLI_REV4) {
+		lpfc_decode_firmware_rev(phba, buf, 1);
 
-	ae->un.AttrInt =  cpu_to_be32(LPFC_MAX_CT_SIZE);
-	size = FOURBYTES + sizeof(uint32_t);
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RHBA_MAX_CT_PAYLOAD_LEN);
-	return size;
+		return lpfc_fdmi_set_attr_string(attr, RHBA_OPTION_ROM_VERSION,
+				buf);
+	}
+
+	return lpfc_fdmi_set_attr_string(attr, RHBA_OPTION_ROM_VERSION,
+			phba->OptionROMVersion);
 }
 
 static int
-lpfc_fdmi_hba_attr_symbolic_name(struct lpfc_vport *vport,
-				 struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_hba_attr_fmw_ver(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t len, size;
+	struct lpfc_hba *phba = vport->phba;
+	char buf[64] = { 0 };
 
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
+	lpfc_decode_firmware_rev(phba, buf, 1);
 
-	len = lpfc_vport_symbolic_node_name(vport,
-				ae->un.AttrString, 256);
-	len += (len & 3) ? (4 - (len & 3)) : 4;
-	size = FOURBYTES + len;
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RHBA_SYM_NODENAME);
-	return size;
+	return lpfc_fdmi_set_attr_string(attr, RHBA_FIRMWARE_VERSION, buf);
 }
 
 static int
-lpfc_fdmi_hba_attr_vendor_info(struct lpfc_vport *vport,
-			       struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_hba_attr_os_ver(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
+	char buf[256] = { 0 };
 
-	ae = &ad->AttrValue;
+	snprintf(buf, sizeof(buf), "%s %s %s",
+		 init_utsname()->sysname,
+		 init_utsname()->release,
+		 init_utsname()->version);
 
-	/* Nothing is defined for this currently */
-	ae->un.AttrInt =  cpu_to_be32(0);
-	size = FOURBYTES + sizeof(uint32_t);
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RHBA_VENDOR_INFO);
-	return size;
+	return lpfc_fdmi_set_attr_string(attr, RHBA_OS_NAME_VERSION, buf);
 }
 
 static int
-lpfc_fdmi_hba_attr_num_ports(struct lpfc_vport *vport,
-			     struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_hba_attr_ct_len(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
-
-	ae = &ad->AttrValue;
-
-	/* Each driver instance corresponds to a single port */
-	ae->un.AttrInt =  cpu_to_be32(1);
-	size = FOURBYTES + sizeof(uint32_t);
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RHBA_NUM_PORTS);
-	return size;
+	return lpfc_fdmi_set_attr_u32(attr, RHBA_MAX_CT_PAYLOAD_LEN,
+			LPFC_MAX_CT_SIZE);
 }
 
 static int
-lpfc_fdmi_hba_attr_fabric_wwnn(struct lpfc_vport *vport,
-			       struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_hba_attr_symbolic_name(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
+	char buf[256] = { 0 };
 
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
+	lpfc_vport_symbolic_node_name(vport, buf, sizeof(buf));
 
-	memcpy(&ae->un.AttrWWN, &vport->fabric_nodename,
-	       sizeof(struct lpfc_name));
-	size = FOURBYTES + sizeof(struct lpfc_name);
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RHBA_FABRIC_WWNN);
-	return size;
+	return lpfc_fdmi_set_attr_string(attr, RHBA_SYM_NODENAME, buf);
 }
 
 static int
-lpfc_fdmi_hba_attr_bios_ver(struct lpfc_vport *vport,
-			    struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_hba_attr_vendor_info(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_hba *phba = vport->phba;
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t len, size;
+	return lpfc_fdmi_set_attr_u32(attr, RHBA_VENDOR_INFO, 0);
+}
 
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
+static int
+lpfc_fdmi_hba_attr_num_ports(struct lpfc_vport *vport, void *attr)
+{
+	/* Each driver instance corresponds to a single port */
+	return lpfc_fdmi_set_attr_u32(attr, RHBA_NUM_PORTS, 1);
+}
 
-	strlcat(ae->un.AttrString, phba->BIOSVersion,
-		sizeof(ae->un.AttrString));
-	len = strnlen(ae->un.AttrString,
-			  sizeof(ae->un.AttrString));
-	len += (len & 3) ? (4 - (len & 3)) : 4;
-	size = FOURBYTES + len;
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RHBA_BIOS_VERSION);
-	return size;
+static int
+lpfc_fdmi_hba_attr_fabric_wwnn(struct lpfc_vport *vport, void *attr)
+{
+	return lpfc_fdmi_set_attr_wwn(attr, RHBA_FABRIC_WWNN,
+			&vport->fabric_nodename);
 }
 
 static int
-lpfc_fdmi_hba_attr_bios_state(struct lpfc_vport *vport,
-			      struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_hba_attr_bios_ver(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
+	struct lpfc_hba *phba = vport->phba;
 
-	ae = &ad->AttrValue;
+	return lpfc_fdmi_set_attr_string(attr, RHBA_BIOS_VERSION,
+			phba->BIOSVersion);
+}
 
+static int
+lpfc_fdmi_hba_attr_bios_state(struct lpfc_vport *vport, void *attr)
+{
 	/* Driver doesn't have access to this information */
-	ae->un.AttrInt =  cpu_to_be32(0);
-	size = FOURBYTES + sizeof(uint32_t);
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RHBA_BIOS_STATE);
-	return size;
+	return lpfc_fdmi_set_attr_u32(attr, RHBA_BIOS_STATE, 0);
 }
 
 static int
-lpfc_fdmi_hba_attr_vendor_id(struct lpfc_vport *vport,
-			     struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_hba_attr_vendor_id(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t len, size;
-
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
-
-	strncpy(ae->un.AttrString, "EMULEX",
-		sizeof(ae->un.AttrString));
-	len = strnlen(ae->un.AttrString,
-			  sizeof(ae->un.AttrString));
-	len += (len & 3) ? (4 - (len & 3)) : 4;
-	size = FOURBYTES + len;
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RHBA_VENDOR_ID);
-	return size;
+	return lpfc_fdmi_set_attr_string(attr, RHBA_VENDOR_ID, "EMULEX");
 }
 
-/* Routines for all individual PORT attributes */
+/*
+ * Routines for all individual PORT attributes
+ */
+
 static int
-lpfc_fdmi_port_attr_fc4type(struct lpfc_vport *vport,
-			    struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_port_attr_fc4type(struct lpfc_vport *vport, void *attr)
 {
 	struct lpfc_hba   *phba = vport->phba;
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
+	u32 fc4types;
 
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
-
-	ae->un.AttrTypes[2] = 0x01; /* Type 0x8 - FCP */
-	ae->un.AttrTypes[7] = 0x01; /* Type 0x20 - CT */
+	fc4types = (ATTR_FC4_CT | ATTR_FC4_FCP);
 
 	/* Check to see if Firmware supports NVME and on physical port */
 	if ((phba->sli_rev == LPFC_SLI_REV4) && (vport == phba->pport) &&
 	    phba->sli4_hba.pc_sli4_params.nvme)
-		ae->un.AttrTypes[6] = 0x01; /* Type 0x28 - NVME */
+		fc4types |= ATTR_FC4_NVME;
 
-	size = FOURBYTES + 32;
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_SUPPORTED_FC4_TYPES);
-	return size;
+	return lpfc_fdmi_set_attr_fc4types(attr, RPRT_SUPPORTED_FC4_TYPES,
+			fc4types);
 }
 
 static int
-lpfc_fdmi_port_attr_support_speed(struct lpfc_vport *vport,
-				  struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_port_attr_support_speed(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_hba   *phba = vport->phba;
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
+	struct lpfc_hba *phba = vport->phba;
+	u32 speeds = 0;
 	u32 tcfg;
 	u8 i, cnt;
 
-	ae = &ad->AttrValue;
-
-	ae->un.AttrInt = 0;
 	if (!(phba->hba_flag & HBA_FCOE_MODE)) {
 		cnt = 0;
 		if (phba->sli_rev == LPFC_SLI_REV4) {
@@ -2929,539 +2804,314 @@ lpfc_fdmi_port_attr_support_speed(struct lpfc_vport *vport,
 
 		if (cnt > 2) { /* 4 lane trunk group */
 			if (phba->lmt & LMT_64Gb)
-				ae->un.AttrInt |= HBA_PORTSPEED_256GFC;
+				speeds |= HBA_PORTSPEED_256GFC;
 			if (phba->lmt & LMT_32Gb)
-				ae->un.AttrInt |= HBA_PORTSPEED_128GFC;
+				speeds |= HBA_PORTSPEED_128GFC;
 			if (phba->lmt & LMT_16Gb)
-				ae->un.AttrInt |= HBA_PORTSPEED_64GFC;
+				speeds |= HBA_PORTSPEED_64GFC;
 		} else if (cnt) { /* 2 lane trunk group */
 			if (phba->lmt & LMT_128Gb)
-				ae->un.AttrInt |= HBA_PORTSPEED_256GFC;
+				speeds |= HBA_PORTSPEED_256GFC;
 			if (phba->lmt & LMT_64Gb)
-				ae->un.AttrInt |= HBA_PORTSPEED_128GFC;
+				speeds |= HBA_PORTSPEED_128GFC;
 			if (phba->lmt & LMT_32Gb)
-				ae->un.AttrInt |= HBA_PORTSPEED_64GFC;
+				speeds |= HBA_PORTSPEED_64GFC;
 			if (phba->lmt & LMT_16Gb)
-				ae->un.AttrInt |= HBA_PORTSPEED_32GFC;
+				speeds |= HBA_PORTSPEED_32GFC;
 		} else {
 			if (phba->lmt & LMT_256Gb)
-				ae->un.AttrInt |= HBA_PORTSPEED_256GFC;
+				speeds |= HBA_PORTSPEED_256GFC;
 			if (phba->lmt & LMT_128Gb)
-				ae->un.AttrInt |= HBA_PORTSPEED_128GFC;
+				speeds |= HBA_PORTSPEED_128GFC;
 			if (phba->lmt & LMT_64Gb)
-				ae->un.AttrInt |= HBA_PORTSPEED_64GFC;
+				speeds |= HBA_PORTSPEED_64GFC;
 			if (phba->lmt & LMT_32Gb)
-				ae->un.AttrInt |= HBA_PORTSPEED_32GFC;
+				speeds |= HBA_PORTSPEED_32GFC;
 			if (phba->lmt & LMT_16Gb)
-				ae->un.AttrInt |= HBA_PORTSPEED_16GFC;
+				speeds |= HBA_PORTSPEED_16GFC;
 			if (phba->lmt & LMT_10Gb)
-				ae->un.AttrInt |= HBA_PORTSPEED_10GFC;
+				speeds |= HBA_PORTSPEED_10GFC;
 			if (phba->lmt & LMT_8Gb)
-				ae->un.AttrInt |= HBA_PORTSPEED_8GFC;
+				speeds |= HBA_PORTSPEED_8GFC;
 			if (phba->lmt & LMT_4Gb)
-				ae->un.AttrInt |= HBA_PORTSPEED_4GFC;
+				speeds |= HBA_PORTSPEED_4GFC;
 			if (phba->lmt & LMT_2Gb)
-				ae->un.AttrInt |= HBA_PORTSPEED_2GFC;
+				speeds |= HBA_PORTSPEED_2GFC;
 			if (phba->lmt & LMT_1Gb)
-				ae->un.AttrInt |= HBA_PORTSPEED_1GFC;
+				speeds |= HBA_PORTSPEED_1GFC;
 		}
 	} else {
 		/* FCoE links support only one speed */
 		switch (phba->fc_linkspeed) {
 		case LPFC_ASYNC_LINK_SPEED_10GBPS:
-			ae->un.AttrInt = HBA_PORTSPEED_10GE;
+			speeds = HBA_PORTSPEED_10GE;
 			break;
 		case LPFC_ASYNC_LINK_SPEED_25GBPS:
-			ae->un.AttrInt = HBA_PORTSPEED_25GE;
+			speeds = HBA_PORTSPEED_25GE;
 			break;
 		case LPFC_ASYNC_LINK_SPEED_40GBPS:
-			ae->un.AttrInt = HBA_PORTSPEED_40GE;
+			speeds = HBA_PORTSPEED_40GE;
 			break;
 		case LPFC_ASYNC_LINK_SPEED_100GBPS:
-			ae->un.AttrInt = HBA_PORTSPEED_100GE;
+			speeds = HBA_PORTSPEED_100GE;
 			break;
 		}
 	}
-	ae->un.AttrInt = cpu_to_be32(ae->un.AttrInt);
-	size = FOURBYTES + sizeof(uint32_t);
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_SUPPORTED_SPEED);
-	return size;
+
+	return lpfc_fdmi_set_attr_u32(attr, RPRT_SUPPORTED_SPEED, speeds);
 }
 
 static int
-lpfc_fdmi_port_attr_speed(struct lpfc_vport *vport,
-			  struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_port_attr_speed(struct lpfc_vport *vport, void *attr)
 {
 	struct lpfc_hba   *phba = vport->phba;
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
-
-	ae = &ad->AttrValue;
+	u32 speeds = 0;
 
 	if (!(phba->hba_flag & HBA_FCOE_MODE)) {
 		switch (phba->fc_linkspeed) {
 		case LPFC_LINK_SPEED_1GHZ:
-			ae->un.AttrInt = HBA_PORTSPEED_1GFC;
+			speeds = HBA_PORTSPEED_1GFC;
 			break;
 		case LPFC_LINK_SPEED_2GHZ:
-			ae->un.AttrInt = HBA_PORTSPEED_2GFC;
+			speeds = HBA_PORTSPEED_2GFC;
 			break;
 		case LPFC_LINK_SPEED_4GHZ:
-			ae->un.AttrInt = HBA_PORTSPEED_4GFC;
+			speeds = HBA_PORTSPEED_4GFC;
 			break;
 		case LPFC_LINK_SPEED_8GHZ:
-			ae->un.AttrInt = HBA_PORTSPEED_8GFC;
+			speeds = HBA_PORTSPEED_8GFC;
 			break;
 		case LPFC_LINK_SPEED_10GHZ:
-			ae->un.AttrInt = HBA_PORTSPEED_10GFC;
+			speeds = HBA_PORTSPEED_10GFC;
 			break;
 		case LPFC_LINK_SPEED_16GHZ:
-			ae->un.AttrInt = HBA_PORTSPEED_16GFC;
+			speeds = HBA_PORTSPEED_16GFC;
 			break;
 		case LPFC_LINK_SPEED_32GHZ:
-			ae->un.AttrInt = HBA_PORTSPEED_32GFC;
+			speeds = HBA_PORTSPEED_32GFC;
 			break;
 		case LPFC_LINK_SPEED_64GHZ:
-			ae->un.AttrInt = HBA_PORTSPEED_64GFC;
+			speeds = HBA_PORTSPEED_64GFC;
 			break;
 		case LPFC_LINK_SPEED_128GHZ:
-			ae->un.AttrInt = HBA_PORTSPEED_128GFC;
+			speeds = HBA_PORTSPEED_128GFC;
 			break;
 		case LPFC_LINK_SPEED_256GHZ:
-			ae->un.AttrInt = HBA_PORTSPEED_256GFC;
+			speeds = HBA_PORTSPEED_256GFC;
 			break;
 		default:
-			ae->un.AttrInt = HBA_PORTSPEED_UNKNOWN;
+			speeds = HBA_PORTSPEED_UNKNOWN;
 			break;
 		}
 	} else {
 		switch (phba->fc_linkspeed) {
 		case LPFC_ASYNC_LINK_SPEED_10GBPS:
-			ae->un.AttrInt = HBA_PORTSPEED_10GE;
+			speeds = HBA_PORTSPEED_10GE;
 			break;
 		case LPFC_ASYNC_LINK_SPEED_25GBPS:
-			ae->un.AttrInt = HBA_PORTSPEED_25GE;
+			speeds = HBA_PORTSPEED_25GE;
 			break;
 		case LPFC_ASYNC_LINK_SPEED_40GBPS:
-			ae->un.AttrInt = HBA_PORTSPEED_40GE;
+			speeds = HBA_PORTSPEED_40GE;
 			break;
 		case LPFC_ASYNC_LINK_SPEED_100GBPS:
-			ae->un.AttrInt = HBA_PORTSPEED_100GE;
+			speeds = HBA_PORTSPEED_100GE;
 			break;
 		default:
-			ae->un.AttrInt = HBA_PORTSPEED_UNKNOWN;
+			speeds = HBA_PORTSPEED_UNKNOWN;
 			break;
 		}
 	}
 
-	ae->un.AttrInt = cpu_to_be32(ae->un.AttrInt);
-	size = FOURBYTES + sizeof(uint32_t);
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_PORT_SPEED);
-	return size;
+	return lpfc_fdmi_set_attr_u32(attr, RPRT_PORT_SPEED, speeds);
 }
 
 static int
-lpfc_fdmi_port_attr_max_frame(struct lpfc_vport *vport,
-			      struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_port_attr_max_frame(struct lpfc_vport *vport, void *attr)
 {
-	struct serv_parm *hsp;
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
-
-	ae = &ad->AttrValue;
+	struct serv_parm *hsp = (struct serv_parm *)&vport->fc_sparam;
 
-	hsp = (struct serv_parm *)&vport->fc_sparam;
-	ae->un.AttrInt = (((uint32_t) hsp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
-			  (uint32_t) hsp->cmn.bbRcvSizeLsb;
-	ae->un.AttrInt = cpu_to_be32(ae->un.AttrInt);
-	size = FOURBYTES + sizeof(uint32_t);
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_MAX_FRAME_SIZE);
-	return size;
+	return lpfc_fdmi_set_attr_u32(attr, RPRT_MAX_FRAME_SIZE,
+			(((uint32_t)hsp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
+			  (uint32_t)hsp->cmn.bbRcvSizeLsb);
 }
 
 static int
-lpfc_fdmi_port_attr_os_devname(struct lpfc_vport *vport,
-			       struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_port_attr_os_devname(struct lpfc_vport *vport, void *attr)
 {
 	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t len, size;
+	char buf[64] = { 0 };
 
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
+	snprintf(buf, sizeof(buf), "/sys/class/scsi_host/host%d",
+		 shost->host_no);
 
-	snprintf(ae->un.AttrString, sizeof(ae->un.AttrString),
-		 "/sys/class/scsi_host/host%d", shost->host_no);
-	len = strnlen((char *)ae->un.AttrString,
-			  sizeof(ae->un.AttrString));
-	len += (len & 3) ? (4 - (len & 3)) : 4;
-	size = FOURBYTES + len;
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_OS_DEVICE_NAME);
-	return size;
+	return lpfc_fdmi_set_attr_string(attr, RPRT_OS_DEVICE_NAME, buf);
 }
 
 static int
-lpfc_fdmi_port_attr_host_name(struct lpfc_vport *vport,
-			      struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_port_attr_host_name(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t len, size;
+	char buf[64] = { 0 };
 
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
+	scnprintf(buf, sizeof(buf), "%s", vport->phba->os_host_name);
 
-	scnprintf(ae->un.AttrString, sizeof(ae->un.AttrString), "%s",
-		  vport->phba->os_host_name);
-
-	len = strnlen(ae->un.AttrString, sizeof(ae->un.AttrString));
-	len += (len & 3) ? (4 - (len & 3)) : 4;
-	size = FOURBYTES + len;
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_HOST_NAME);
-	return size;
+	return lpfc_fdmi_set_attr_string(attr, RPRT_HOST_NAME, buf);
 }
 
 static int
-lpfc_fdmi_port_attr_wwnn(struct lpfc_vport *vport,
-			 struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_port_attr_wwnn(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
-
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
-
-	memcpy(&ae->un.AttrWWN, &vport->fc_sparam.nodeName,
-	       sizeof(struct lpfc_name));
-	size = FOURBYTES + sizeof(struct lpfc_name);
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_NODENAME);
-	return size;
+	return lpfc_fdmi_set_attr_wwn(attr, RPRT_NODENAME,
+			&vport->fc_sparam.nodeName);
 }
 
 static int
-lpfc_fdmi_port_attr_wwpn(struct lpfc_vport *vport,
-			 struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_port_attr_wwpn(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
-
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
-
-	memcpy(&ae->un.AttrWWN, &vport->fc_sparam.portName,
-	       sizeof(struct lpfc_name));
-	size = FOURBYTES + sizeof(struct lpfc_name);
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_PORTNAME);
-	return size;
+	return lpfc_fdmi_set_attr_wwn(attr, RPRT_PORTNAME,
+			&vport->fc_sparam.portName);
 }
 
 static int
-lpfc_fdmi_port_attr_symbolic_name(struct lpfc_vport *vport,
-				  struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_port_attr_symbolic_name(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t len, size;
+	char buf[256] = { 0 };
 
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
+	lpfc_vport_symbolic_port_name(vport, buf, sizeof(buf));
 
-	len = lpfc_vport_symbolic_port_name(vport, ae->un.AttrString, 256);
-	len += (len & 3) ? (4 - (len & 3)) : 4;
-	size = FOURBYTES + len;
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_SYM_PORTNAME);
-	return size;
+	return lpfc_fdmi_set_attr_string(attr, RPRT_SYM_PORTNAME, buf);
 }
 
 static int
-lpfc_fdmi_port_attr_port_type(struct lpfc_vport *vport,
-			      struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_port_attr_port_type(struct lpfc_vport *vport, void *attr)
 {
 	struct lpfc_hba *phba = vport->phba;
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
 
-	ae = &ad->AttrValue;
-	if (phba->fc_topology == LPFC_TOPOLOGY_LOOP)
-		ae->un.AttrInt =  cpu_to_be32(LPFC_FDMI_PORTTYPE_NLPORT);
-	else
-		ae->un.AttrInt =  cpu_to_be32(LPFC_FDMI_PORTTYPE_NPORT);
-	size = FOURBYTES + sizeof(uint32_t);
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_PORT_TYPE);
-	return size;
+	return lpfc_fdmi_set_attr_u32(attr, RPRT_PORT_TYPE,
+			(phba->fc_topology == LPFC_TOPOLOGY_LOOP) ?
+				LPFC_FDMI_PORTTYPE_NLPORT :
+				LPFC_FDMI_PORTTYPE_NPORT);
 }
 
 static int
-lpfc_fdmi_port_attr_class(struct lpfc_vport *vport,
-			  struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_port_attr_class(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
-
-	ae = &ad->AttrValue;
-	ae->un.AttrInt = cpu_to_be32(FC_COS_CLASS2 | FC_COS_CLASS3);
-	size = FOURBYTES + sizeof(uint32_t);
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_SUPPORTED_CLASS);
-	return size;
+	return lpfc_fdmi_set_attr_u32(attr, RPRT_SUPPORTED_CLASS,
+			FC_COS_CLASS2 | FC_COS_CLASS3);
 }
 
 static int
-lpfc_fdmi_port_attr_fabric_wwpn(struct lpfc_vport *vport,
-				struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_port_attr_fabric_wwpn(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
-
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
-
-	memcpy(&ae->un.AttrWWN, &vport->fabric_portname,
-	       sizeof(struct lpfc_name));
-	size = FOURBYTES + sizeof(struct lpfc_name);
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_FABRICNAME);
-	return size;
+	return lpfc_fdmi_set_attr_wwn(attr, RPRT_FABRICNAME,
+			&vport->fabric_portname);
 }
 
 static int
-lpfc_fdmi_port_attr_active_fc4type(struct lpfc_vport *vport,
-				   struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_port_attr_active_fc4type(struct lpfc_vport *vport, void *attr)
 {
 	struct lpfc_hba *phba = vport->phba;
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
+	u32 fc4types;
 
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
-
-	ae->un.AttrTypes[2] = 0x01; /* Type 0x8 - FCP */
-	ae->un.AttrTypes[7] = 0x01; /* Type 0x20 - CT */
+	fc4types = (ATTR_FC4_CT | ATTR_FC4_FCP);
 
 	/* Check to see if NVME is configured or not */
 	if (vport == phba->pport &&
 	    phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
-		ae->un.AttrTypes[6] = 0x1; /* Type 0x28 - NVME */
+		fc4types |= ATTR_FC4_NVME;
 
-	size = FOURBYTES + 32;
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_ACTIVE_FC4_TYPES);
-	return size;
+	return lpfc_fdmi_set_attr_fc4types(attr, RPRT_ACTIVE_FC4_TYPES,
+			fc4types);
 }
 
 static int
-lpfc_fdmi_port_attr_port_state(struct lpfc_vport *vport,
-			       struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_port_attr_port_state(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
-
-	ae = &ad->AttrValue;
-	/* Link Up - operational */
-	ae->un.AttrInt =  cpu_to_be32(LPFC_FDMI_PORTSTATE_ONLINE);
-	size = FOURBYTES + sizeof(uint32_t);
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_PORT_STATE);
-	return size;
+	return lpfc_fdmi_set_attr_u32(attr, RPRT_PORT_STATE,
+			LPFC_FDMI_PORTSTATE_ONLINE);
 }
 
 static int
-lpfc_fdmi_port_attr_num_disc(struct lpfc_vport *vport,
-			     struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_port_attr_num_disc(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
-
-	ae = &ad->AttrValue;
 	vport->fdmi_num_disc = lpfc_find_map_node(vport);
-	ae->un.AttrInt = cpu_to_be32(vport->fdmi_num_disc);
-	size = FOURBYTES + sizeof(uint32_t);
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_DISC_PORT);
-	return size;
+
+	return lpfc_fdmi_set_attr_u32(attr, RPRT_DISC_PORT,
+			vport->fdmi_num_disc);
 }
 
 static int
-lpfc_fdmi_port_attr_nportid(struct lpfc_vport *vport,
-			    struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_port_attr_nportid(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
-
-	ae = &ad->AttrValue;
-	ae->un.AttrInt =  cpu_to_be32(vport->fc_myDID);
-	size = FOURBYTES + sizeof(uint32_t);
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_PORT_ID);
-	return size;
+	return lpfc_fdmi_set_attr_u32(attr, RPRT_PORT_ID, vport->fc_myDID);
 }
 
 static int
-lpfc_fdmi_smart_attr_service(struct lpfc_vport *vport,
-			     struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_smart_attr_service(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t len, size;
-
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
-
-	strncpy(ae->un.AttrString, "Smart SAN Initiator",
-		sizeof(ae->un.AttrString));
-	len = strnlen(ae->un.AttrString,
-			  sizeof(ae->un.AttrString));
-	len += (len & 3) ? (4 - (len & 3)) : 4;
-	size = FOURBYTES + len;
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_SMART_SERVICE);
-	return size;
+	return lpfc_fdmi_set_attr_string(attr, RPRT_SMART_SERVICE,
+			"Smart SAN Initiator");
 }
 
 static int
-lpfc_fdmi_smart_attr_guid(struct lpfc_vport *vport,
-			  struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_smart_attr_guid(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
-
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
-
-	memcpy(&ae->un.AttrString, &vport->fc_sparam.nodeName,
-	       sizeof(struct lpfc_name));
-	memcpy((((uint8_t *)&ae->un.AttrString) +
-		sizeof(struct lpfc_name)),
-		&vport->fc_sparam.portName, sizeof(struct lpfc_name));
-	size = FOURBYTES + (2 * sizeof(struct lpfc_name));
-	ad->AttrLen =  cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_SMART_GUID);
-	return size;
+	return lpfc_fdmi_set_attr_fullwwn(attr, RPRT_SMART_GUID,
+			&vport->fc_sparam.nodeName,
+			&vport->fc_sparam.portName);
 }
 
 static int
-lpfc_fdmi_smart_attr_version(struct lpfc_vport *vport,
-			     struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_smart_attr_version(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t len, size;
-
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
-
-	strncpy(ae->un.AttrString, "Smart SAN Version 2.0",
-		sizeof(ae->un.AttrString));
-	len = strnlen(ae->un.AttrString,
-			  sizeof(ae->un.AttrString));
-	len += (len & 3) ? (4 - (len & 3)) : 4;
-	size = FOURBYTES + len;
-	ad->AttrLen =  cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_SMART_VERSION);
-	return size;
+	return lpfc_fdmi_set_attr_string(attr, RPRT_SMART_VERSION,
+			"Smart SAN Version 2.0");
 }
 
 static int
-lpfc_fdmi_smart_attr_model(struct lpfc_vport *vport,
-			   struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_smart_attr_model(struct lpfc_vport *vport, void *attr)
 {
 	struct lpfc_hba *phba = vport->phba;
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t len, size;
-
-	ae = &ad->AttrValue;
-	memset(ae, 0, sizeof(*ae));
 
-	strncpy(ae->un.AttrString, phba->ModelName,
-		sizeof(ae->un.AttrString));
-	len = strnlen(ae->un.AttrString, sizeof(ae->un.AttrString));
-	len += (len & 3) ? (4 - (len & 3)) : 4;
-	size = FOURBYTES + len;
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_SMART_MODEL);
-	return size;
+	return lpfc_fdmi_set_attr_string(attr, RPRT_SMART_MODEL,
+			phba->ModelName);
 }
 
 static int
-lpfc_fdmi_smart_attr_port_info(struct lpfc_vport *vport,
-			       struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_smart_attr_port_info(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
-
-	ae = &ad->AttrValue;
-
 	/* SRIOV (type 3) is not supported */
-	if (vport->vpi)
-		ae->un.AttrInt =  cpu_to_be32(2);  /* NPIV */
-	else
-		ae->un.AttrInt =  cpu_to_be32(1);  /* Physical */
-	size = FOURBYTES + sizeof(uint32_t);
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_SMART_PORT_INFO);
-	return size;
+
+	return lpfc_fdmi_set_attr_u32(attr, RPRT_SMART_PORT_INFO,
+			(vport->vpi) ?  2 /* NPIV */ : 1 /* Physical */);
 }
 
 static int
-lpfc_fdmi_smart_attr_qos(struct lpfc_vport *vport,
-			 struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_smart_attr_qos(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
-
-	ae = &ad->AttrValue;
-	ae->un.AttrInt =  cpu_to_be32(0);
-	size = FOURBYTES + sizeof(uint32_t);
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_SMART_QOS);
-	return size;
+	return lpfc_fdmi_set_attr_u32(attr, RPRT_SMART_QOS, 0);
 }
 
 static int
-lpfc_fdmi_smart_attr_security(struct lpfc_vport *vport,
-			      struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_smart_attr_security(struct lpfc_vport *vport, void *attr)
 {
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t size;
-
-	ae = &ad->AttrValue;
-	ae->un.AttrInt =  cpu_to_be32(1);
-	size = FOURBYTES + sizeof(uint32_t);
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_SMART_SECURITY);
-	return size;
+	return lpfc_fdmi_set_attr_u32(attr, RPRT_SMART_SECURITY, 1);
 }
 
 static int
-lpfc_fdmi_vendor_attr_mi(struct lpfc_vport *vport,
-			  struct lpfc_fdmi_attr_def *ad)
+lpfc_fdmi_vendor_attr_mi(struct lpfc_vport *vport, void *attr)
 {
 	struct lpfc_hba *phba = vport->phba;
-	struct lpfc_fdmi_attr_entry *ae;
-	uint32_t len, size;
-	char mibrevision[16];
-
-	ae = (struct lpfc_fdmi_attr_entry *)&ad->AttrValue;
-	memset(ae, 0, 256);
-	sprintf(mibrevision, "ELXE2EM:%04d",
-		phba->sli4_hba.pc_sli4_params.mi_ver);
-	strncpy(ae->un.AttrString, &mibrevision[0], sizeof(ae->un.AttrString));
-	len = strnlen(ae->un.AttrString, sizeof(ae->un.AttrString));
-	len += (len & 3) ? (4 - (len & 3)) : 4;
-	size = FOURBYTES + len;
-	ad->AttrLen = cpu_to_be16(size);
-	ad->AttrType = cpu_to_be16(RPRT_VENDOR_MI);
-	return size;
+	char buf[32] = { 0 };
+
+	sprintf(buf, "ELXE2EM:%04d", phba->sli4_hba.pc_sli4_params.mi_ver);
+
+	return lpfc_fdmi_set_attr_string(attr, RPRT_VENDOR_MI, buf);
 }
 
 /* RHBA attribute jump table */
 int (*lpfc_fdmi_hba_action[])
-	(struct lpfc_vport *vport, struct lpfc_fdmi_attr_def *ad) = {
+	(struct lpfc_vport *vport, void *attrbuf) = {
 	/* Action routine                 Mask bit     Attribute type */
 	lpfc_fdmi_hba_attr_wwnn,	  /* bit0     RHBA_NODENAME           */
 	lpfc_fdmi_hba_attr_manufacturer,  /* bit1     RHBA_MANUFACTURER       */
@@ -3485,7 +3135,7 @@ int (*lpfc_fdmi_hba_action[])
 
 /* RPA / RPRT attribute jump table */
 int (*lpfc_fdmi_port_action[])
-	(struct lpfc_vport *vport, struct lpfc_fdmi_attr_def *ad) = {
+	(struct lpfc_vport *vport, void *attrbuf) = {
 	/* Action routine                   Mask bit   Attribute type */
 	lpfc_fdmi_port_attr_fc4type,        /* bit0   RPRT_SUPPORT_FC4_TYPES  */
 	lpfc_fdmi_port_attr_support_speed,  /* bit1   RPRT_SUPPORTED_SPEED    */
@@ -3527,20 +3177,20 @@ lpfc_fdmi_cmd(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	      int cmdcode, uint32_t new_mask)
 {
 	struct lpfc_hba *phba = vport->phba;
-	struct lpfc_dmabuf *mp, *bmp;
+	struct lpfc_dmabuf *rq, *rsp;
 	struct lpfc_sli_ct_request *CtReq;
-	struct ulp_bde64 *bpl;
+	struct ulp_bde64_le *bde;
 	uint32_t bit_pos;
-	uint32_t size;
+	uint32_t size, addsz;
 	uint32_t rsp_size;
 	uint32_t mask;
 	struct lpfc_fdmi_reg_hba *rh;
 	struct lpfc_fdmi_port_entry *pe;
-	struct lpfc_fdmi_reg_portattr *pab = NULL;
+	struct lpfc_fdmi_reg_portattr *pab = NULL, *base = NULL;
 	struct lpfc_fdmi_attr_block *ab = NULL;
-	int  (*func)(struct lpfc_vport *vport, struct lpfc_fdmi_attr_def *ad);
-	void (*cmpl)(struct lpfc_hba *, struct lpfc_iocbq *,
-		     struct lpfc_iocbq *);
+	int  (*func)(struct lpfc_vport *vport, void *attrbuf);
+	void (*cmpl)(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
+		     struct lpfc_iocbq *rspiocb);
 
 	if (!ndlp)
 		return 0;
@@ -3549,25 +3199,29 @@ lpfc_fdmi_cmd(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 
 	/* fill in BDEs for command */
 	/* Allocate buffer for command payload */
-	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
-	if (!mp)
+	rq = kmalloc(sizeof(*rq), GFP_KERNEL);
+	if (!rq)
 		goto fdmi_cmd_exit;
 
-	mp->virt = lpfc_mbuf_alloc(phba, 0, &(mp->phys));
-	if (!mp->virt)
-		goto fdmi_cmd_free_mp;
+	rq->virt = lpfc_mbuf_alloc(phba, 0, &rq->phys);
+	if (!rq->virt)
+		goto fdmi_cmd_free_rq;
 
 	/* Allocate buffer for Buffer ptr list */
-	bmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
-	if (!bmp)
-		goto fdmi_cmd_free_mpvirt;
+	rsp = kmalloc(sizeof(*rsp), GFP_KERNEL);
+	if (!rsp)
+		goto fdmi_cmd_free_rqvirt;
 
-	bmp->virt = lpfc_mbuf_alloc(phba, 0, &(bmp->phys));
-	if (!bmp->virt)
-		goto fdmi_cmd_free_bmp;
+	rsp->virt = lpfc_mbuf_alloc(phba, 0, &rsp->phys);
+	if (!rsp->virt)
+		goto fdmi_cmd_free_rsp;
 
-	INIT_LIST_HEAD(&mp->list);
-	INIT_LIST_HEAD(&bmp->list);
+	INIT_LIST_HEAD(&rq->list);
+	INIT_LIST_HEAD(&rsp->list);
+
+	/* mbuf buffers are 1K in length - aka LPFC_BPL_SIZE */
+	memset(rq->virt, 0, LPFC_BPL_SIZE);
+	rsp_size = LPFC_BPL_SIZE;
 
 	/* FDMI request */
 	lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
@@ -3575,10 +3229,9 @@ lpfc_fdmi_cmd(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 			 cmdcode, new_mask, vport->fdmi_port_mask,
 			 vport->fc_flag, vport->port_state);
 
-	CtReq = (struct lpfc_sli_ct_request *)mp->virt;
+	CtReq = (struct lpfc_sli_ct_request *)rq->virt;
 
 	/* First populate the CT_IU preamble */
-	memset(CtReq, 0, sizeof(struct lpfc_sli_ct_request));
 	CtReq->RevisionId.bits.Revision = SLI_CT_REVISION;
 	CtReq->RevisionId.bits.InId = 0;
 
@@ -3586,17 +3239,18 @@ lpfc_fdmi_cmd(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	CtReq->FsSubType = SLI_CT_FDMI_Subtypes;
 
 	CtReq->CommandResponse.bits.CmdRsp = cpu_to_be16(cmdcode);
-	rsp_size = LPFC_BPL_SIZE;
+
 	size = 0;
 
 	/* Next fill in the specific FDMI cmd information */
 	switch (cmdcode) {
 	case SLI_MGMT_RHAT:
 	case SLI_MGMT_RHBA:
-		rh = (struct lpfc_fdmi_reg_hba *)&CtReq->un.PortID;
+		rh = (struct lpfc_fdmi_reg_hba *)&CtReq->un;
 		/* HBA Identifier */
 		memcpy(&rh->hi.PortName, &phba->pport->fc_sparam.portName,
 		       sizeof(struct lpfc_name));
+		size += sizeof(struct lpfc_fdmi_hba_ident);
 
 		if (cmdcode == SLI_MGMT_RHBA) {
 			/* Registered Port List */
@@ -3605,16 +3259,13 @@ lpfc_fdmi_cmd(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 			memcpy(&rh->rpl.pe.PortName,
 			       &phba->pport->fc_sparam.portName,
 			       sizeof(struct lpfc_name));
-
-			/* point to the HBA attribute block */
-			size = 2 * sizeof(struct lpfc_name) +
-				FOURBYTES;
-		} else {
-			size = sizeof(struct lpfc_name);
+			size += sizeof(struct lpfc_fdmi_reg_port_list);
 		}
+
 		ab = (struct lpfc_fdmi_attr_block *)((uint8_t *)rh + size);
 		ab->EntryCnt = 0;
-		size += FOURBYTES;
+		size += FOURBYTES;	/* add length of EntryCnt field */
+
 		bit_pos = 0;
 		if (new_mask)
 			mask = new_mask;
@@ -3625,11 +3276,13 @@ lpfc_fdmi_cmd(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 		while (mask) {
 			if (mask & 0x1) {
 				func = lpfc_fdmi_hba_action[bit_pos];
-				size += func(vport,
-					     (struct lpfc_fdmi_attr_def *)
-					     ((uint8_t *)rh + size));
-				ab->EntryCnt++;
-				if ((size + 256) >
+				addsz = func(vport, ((uint8_t *)rh + size));
+				if (addsz) {
+					ab->EntryCnt++;
+					size += addsz;
+				}
+				/* check if another attribute fits */
+				if ((size + FDMI_MAX_ATTRLEN) >
 				    (LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
 					goto hba_out;
 			}
@@ -3639,7 +3292,7 @@ lpfc_fdmi_cmd(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 hba_out:
 		ab->EntryCnt = cpu_to_be32(ab->EntryCnt);
 		/* Total size */
-		size = GID_REQUEST_SZ - 4 + size;
+		size += GID_REQUEST_SZ - 4;
 		break;
 
 	case SLI_MGMT_RPRT:
@@ -3650,22 +3303,29 @@ hba_out:
 		}
 		fallthrough;
 	case SLI_MGMT_RPA:
-		pab = (struct lpfc_fdmi_reg_portattr *)&CtReq->un.PortID;
+		/* Store base ptr right after preamble */
+		base = (struct lpfc_fdmi_reg_portattr *)&CtReq->un;
+
 		if (cmdcode == SLI_MGMT_RPRT) {
-			rh = (struct lpfc_fdmi_reg_hba *)pab;
+			rh = (struct lpfc_fdmi_reg_hba *)base;
 			/* HBA Identifier */
 			memcpy(&rh->hi.PortName,
 			       &phba->pport->fc_sparam.portName,
 			       sizeof(struct lpfc_name));
 			pab = (struct lpfc_fdmi_reg_portattr *)
-				((uint8_t *)pab +  sizeof(struct lpfc_name));
+				((uint8_t *)base + sizeof(struct lpfc_name));
+			size += sizeof(struct lpfc_name);
+		} else {
+			pab = base;
 		}
 
 		memcpy((uint8_t *)&pab->PortName,
 		       (uint8_t *)&vport->fc_sparam.portName,
 		       sizeof(struct lpfc_name));
-		size += sizeof(struct lpfc_name) + FOURBYTES;
 		pab->ab.EntryCnt = 0;
+		/* add length of name and EntryCnt field */
+		size += sizeof(struct lpfc_name) + FOURBYTES;
+
 		bit_pos = 0;
 		if (new_mask)
 			mask = new_mask;
@@ -3676,11 +3336,13 @@ hba_out:
 		while (mask) {
 			if (mask & 0x1) {
 				func = lpfc_fdmi_port_action[bit_pos];
-				size += func(vport,
-					     (struct lpfc_fdmi_attr_def *)
-					     ((uint8_t *)pab + size));
-				pab->ab.EntryCnt++;
-				if ((size + 256) >
+				addsz = func(vport, ((uint8_t *)base + size));
+				if (addsz) {
+					pab->ab.EntryCnt++;
+					size += addsz;
+				}
+				/* check if another attribute fits */
+				if ((size + FDMI_MAX_ATTRLEN) >
 				    (LPFC_BPL_SIZE - LPFC_CT_PREAMBLE))
 					goto port_out;
 			}
@@ -3689,10 +3351,7 @@ hba_out:
 		}
 port_out:
 		pab->ab.EntryCnt = cpu_to_be32(pab->ab.EntryCnt);
-		/* Total size */
-		if (cmdcode == SLI_MGMT_RPRT)
-			size += sizeof(struct lpfc_name);
-		size = GID_REQUEST_SZ - 4 + size;
+		size += GID_REQUEST_SZ - 4;
 		break;
 
 	case SLI_MGMT_GHAT:
@@ -3701,7 +3360,7 @@ port_out:
 		fallthrough;
 	case SLI_MGMT_DHBA:
 	case SLI_MGMT_DHAT:
-		pe = (struct lpfc_fdmi_port_entry *)&CtReq->un.PortID;
+		pe = (struct lpfc_fdmi_port_entry *)&CtReq->un;
 		memcpy((uint8_t *)&pe->PortName,
 		       (uint8_t *)&vport->fc_sparam.portName,
 		       sizeof(struct lpfc_name));
@@ -3720,7 +3379,7 @@ port_out:
 		}
 		fallthrough;
 	case SLI_MGMT_DPA:
-		pe = (struct lpfc_fdmi_port_entry *)&CtReq->un.PortID;
+		pe = (struct lpfc_fdmi_port_entry *)&CtReq->un;
 		memcpy((uint8_t *)&pe->PortName,
 		       (uint8_t *)&vport->fc_sparam.portName,
 		       sizeof(struct lpfc_name));
@@ -3733,31 +3392,32 @@ port_out:
 		lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
 				 "0298 FDMI cmdcode x%x not supported\n",
 				 cmdcode);
-		goto fdmi_cmd_free_bmpvirt;
+		goto fdmi_cmd_free_rspvirt;
 	}
 	CtReq->CommandResponse.bits.Size = cpu_to_be16(rsp_size);
 
-	bpl = (struct ulp_bde64 *)bmp->virt;
-	bpl->addrHigh = le32_to_cpu(putPaddrHigh(mp->phys));
-	bpl->addrLow = le32_to_cpu(putPaddrLow(mp->phys));
-	bpl->tus.f.bdeFlags = 0;
-	bpl->tus.f.bdeSize = size;
+	bde = (struct ulp_bde64_le *)rsp->virt;
+	bde->addr_high = cpu_to_le32(putPaddrHigh(rq->phys));
+	bde->addr_low = cpu_to_le32(putPaddrLow(rq->phys));
+	bde->type_size = cpu_to_le32(ULP_BDE64_TYPE_BDE_64 <<
+				     ULP_BDE64_TYPE_SHIFT);
+	bde->type_size |= cpu_to_le32(size);
 
 	/*
 	 * The lpfc_ct_cmd/lpfc_get_req shall increment ndlp reference count
 	 * to hold ndlp reference for the corresponding callback function.
 	 */
-	if (!lpfc_ct_cmd(vport, mp, bmp, ndlp, cmpl, rsp_size, 0))
+	if (!lpfc_ct_cmd(vport, rq, rsp, ndlp, cmpl, rsp_size, 0))
 		return 0;
 
-fdmi_cmd_free_bmpvirt:
-	lpfc_mbuf_free(phba, bmp->virt, bmp->phys);
-fdmi_cmd_free_bmp:
-	kfree(bmp);
-fdmi_cmd_free_mpvirt:
-	lpfc_mbuf_free(phba, mp->virt, mp->phys);
-fdmi_cmd_free_mp:
-	kfree(mp);
+fdmi_cmd_free_rspvirt:
+	lpfc_mbuf_free(phba, rsp->virt, rsp->phys);
+fdmi_cmd_free_rsp:
+	kfree(rsp);
+fdmi_cmd_free_rqvirt:
+	lpfc_mbuf_free(phba, rq->virt, rq->phys);
+fdmi_cmd_free_rq:
+	kfree(rq);
 fdmi_cmd_exit:
 	/* Issue FDMI request failed */
 	lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
@@ -3912,6 +3572,7 @@ lpfc_cmpl_ct_cmd_vmid(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 	struct lpfc_sli_ct_request *ctrsp = outp->virt;
 	u16 rsp = ctrsp->CommandResponse.bits.CmdRsp;
 	struct app_id_object *app;
+	struct lpfc_nodelist *ndlp = cmdiocb->ndlp;
 	u32 cmd, hash, bucket;
 	struct lpfc_vmid *vmp, *cur;
 	u8 *data = outp->virt;
@@ -3923,7 +3584,7 @@ lpfc_cmpl_ct_cmd_vmid(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 
 	if (lpfc_els_chk_latt(vport) || get_job_ulpstatus(phba, rspiocb)) {
 		if (cmd != SLI_CTAS_DALLAPP_ID)
-			return;
+			goto free_res;
 	}
 	/* Check for a CT LS_RJT response */
 	if (rsp == be16_to_cpu(SLI_CT_RESPONSE_FS_RJT)) {
@@ -3938,7 +3599,7 @@ lpfc_cmpl_ct_cmd_vmid(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 			/* If DALLAPP_ID failed retry later */
 			if (cmd == SLI_CTAS_DALLAPP_ID)
 				vport->load_flag |= FC_DEREGISTER_ALL_APP_ID;
-			return;
+			goto free_res;
 		}
 	}
 
@@ -3952,7 +3613,7 @@ lpfc_cmpl_ct_cmd_vmid(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 				 app->obj.entity_id_len);
 
 		if (app->obj.entity_id_len == 0 || app->port_id == 0)
-			return;
+			goto free_res;
 
 		hash = lpfc_vmid_hash_fn(app->obj.entity_id,
 					 app->obj.entity_id_len);
@@ -3999,6 +3660,9 @@ lpfc_cmpl_ct_cmd_vmid(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 		lpfc_printf_vlog(vport, KERN_DEBUG, LOG_DISCOVERY,
 				 "8857 Invalid command code\n");
 	}
+free_res:
+	lpfc_ct_free_iocb(phba, cmdiocb);
+	lpfc_nlp_put(ndlp);
 }
 
 /**
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index 5037ea09a810..f5252e45a48a 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -5156,7 +5156,7 @@ error_out:
 static int
 lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len)
 {
-	uint16_t ext_cnt, ext_size;
+	uint16_t ext_cnt = 0, ext_size = 0;
 
 	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
 			"\nAvailable Extents Information:\n");
@@ -5531,7 +5531,7 @@ lpfc_rx_monitor_open(struct inode *inode, struct file *file)
 	if (!debug)
 		goto out;
 
-	debug->buffer = vmalloc(MAX_DEBUGFS_RX_TABLE_SIZE);
+	debug->buffer = vmalloc(MAX_DEBUGFS_RX_INFO_SIZE);
 	if (!debug->buffer) {
 		kfree(debug);
 		goto out;
@@ -5552,57 +5552,18 @@ lpfc_rx_monitor_read(struct file *file, char __user *buf, size_t nbytes,
 	struct lpfc_rx_monitor_debug *debug = file->private_data;
 	struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
 	char *buffer = debug->buffer;
-	struct rxtable_entry *entry;
-	int i, len = 0, head, tail, last, start;
-
-	head = atomic_read(&phba->rxtable_idx_head);
-	while (head == LPFC_RXMONITOR_TABLE_IN_USE) {
-		/* Table is getting updated */
-		msleep(20);
-		head = atomic_read(&phba->rxtable_idx_head);
-	}
 
-	tail = atomic_xchg(&phba->rxtable_idx_tail, head);
-	if (!phba->rxtable || head == tail) {
-		len += scnprintf(buffer + len, MAX_DEBUGFS_RX_TABLE_SIZE - len,
-				"Rxtable is empty\n");
-		goto out;
-	}
-	last = (head > tail) ?  head : LPFC_MAX_RXMONITOR_ENTRY;
-	start = tail;
-
-	len += scnprintf(buffer + len, MAX_DEBUGFS_RX_TABLE_SIZE - len,
-			"        MaxBPI    Tot_Data_CMF Tot_Data_Cmd "
-			"Tot_Data_Cmpl  Lat(us)  Avg_IO  Max_IO "
-			"Bsy IO_cnt Info BWutil(ms)\n");
-get_table:
-	for (i = start; i < last; i++) {
-		entry = &phba->rxtable[i];
-		len += scnprintf(buffer + len, MAX_DEBUGFS_RX_TABLE_SIZE - len,
-				"%3d:%12lld %12lld %12lld %12lld "
-				"%7lldus %8lld %7lld "
-				"%2d   %4d   %2d   %2d(%2d)\n",
-				i, entry->max_bytes_per_interval,
-				entry->cmf_bytes,
-				entry->total_bytes,
-				entry->rcv_bytes,
-				entry->avg_io_latency,
-				entry->avg_io_size,
-				entry->max_read_cnt,
-				entry->cmf_busy,
-				entry->io_cnt,
-				entry->cmf_info,
-				entry->timer_utilization,
-				entry->timer_interval);
+	if (!phba->rx_monitor) {
+		scnprintf(buffer, MAX_DEBUGFS_RX_INFO_SIZE,
+			  "Rx Monitor Info is empty.\n");
+	} else {
+		lpfc_rx_monitor_report(phba, phba->rx_monitor, buffer,
+				       MAX_DEBUGFS_RX_INFO_SIZE,
+				       LPFC_MAX_RXMONITOR_ENTRY);
 	}
 
-	if (head != last) {
-		start = 0;
-		last = head;
-		goto get_table;
-	}
-out:
-	return simple_read_from_buffer(buf, nbytes, ppos, buffer, len);
+	return simple_read_from_buffer(buf, nbytes, ppos, buffer,
+				       strlen(buffer));
 }
 
 static int
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.h b/drivers/scsi/lpfc/lpfc_debugfs.h
index 6dd361c1fd31..8d2e8d05bbc0 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.h
+++ b/drivers/scsi/lpfc/lpfc_debugfs.h
@@ -1,7 +1,7 @@
 /*******************************************************************
  * This file is part of the Emulex Linux Device Driver for         *
  * Fibre Channel Host Bus Adapters.                                *
- * Copyright (C) 2017-2021 Broadcom. All Rights Reserved. The term *
+ * Copyright (C) 2017-2022 Broadcom. All Rights Reserved. The term *
  * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.     *
  * Copyright (C) 2007-2011 Emulex.  All rights reserved.           *
  * EMULEX and SLI are trademarks of Emulex.                        *
@@ -282,7 +282,7 @@ struct lpfc_idiag {
 	void *ptr_private;
 };
 
-#define MAX_DEBUGFS_RX_TABLE_SIZE	(128 * LPFC_MAX_RXMONITOR_ENTRY)
+#define MAX_DEBUGFS_RX_INFO_SIZE	(128 * LPFC_MAX_RXMONITOR_ENTRY)
 struct lpfc_rx_monitor_debug {
 	char *i_private;
 	char *buffer;
diff --git a/drivers/scsi/lpfc/lpfc_disc.h b/drivers/scsi/lpfc/lpfc_disc.h
index 37a4b79010bf..f82615d87c4b 100644
--- a/drivers/scsi/lpfc/lpfc_disc.h
+++ b/drivers/scsi/lpfc/lpfc_disc.h
@@ -1,7 +1,7 @@
 /*******************************************************************
  * This file is part of the Emulex Linux Device Driver for         *
  * Fibre Channel Host Bus Adapters.                                *
- * Copyright (C) 2017-2021 Broadcom. All Rights Reserved. The term *
+ * Copyright (C) 2017-2022 Broadcom. All Rights Reserved. The term *
  * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.     *
  * Copyright (C) 2004-2013 Emulex.  All rights reserved.           *
  * EMULEX and SLI are trademarks of Emulex.                        *
@@ -149,7 +149,6 @@ struct lpfc_nodelist {
 	uint32_t cmd_qdepth;
 	unsigned long last_change_time;
 	unsigned long *active_rrqs_xri_bitmap;
-	struct lpfc_scsicmd_bkt *lat_data;	/* Latency data */
 	uint32_t fc4_prli_sent;
 
 	/* flags to keep ndlp alive until special conditions are met */
@@ -188,7 +187,6 @@ struct lpfc_node_rrq {
 #define NLP_RNID_SND       0x00000400	/* sent RNID request for this entry */
 #define NLP_ELS_SND_MASK   0x000007e0	/* sent ELS request for this entry */
 #define NLP_NVMET_RECOV    0x00001000   /* NVMET auditing node for recovery. */
-#define NLP_FCP_PRLI_RJT   0x00002000   /* Rport does not support FCP PRLI. */
 #define NLP_UNREG_INP      0x00008000	/* UNREG_RPI cmd is in progress */
 #define NLP_DROPPED        0x00010000	/* Init ref count has been dropped */
 #define NLP_DELAY_TMO      0x00020000	/* delay timeout is running for node */
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index 9e69de9eb992..863b2125fed6 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -2200,10 +2200,6 @@ lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry)
 	if (!elsiocb)
 		return 1;
 
-	spin_lock_irq(&ndlp->lock);
-	ndlp->nlp_flag &= ~NLP_FCP_PRLI_RJT;
-	spin_unlock_irq(&ndlp->lock);
-
 	pcmd = (uint8_t *)elsiocb->cmd_dmabuf->virt;
 
 	/* For PLOGI request, remainder of payload is service parameters */
@@ -3992,7 +3988,8 @@ lpfc_cmpl_els_edc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 		goto out;
 
 	/* ELS cmd tag <ulpIoTag> completes */
-	lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_CGN_MGMT,
+	lpfc_printf_log(phba, KERN_INFO,
+			LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT,
 			"4676 Fabric EDC Rsp: "
 			"0x%02x, 0x%08x\n",
 			edc_rsp->acc_hdr.la_cmd,
@@ -4029,18 +4026,18 @@ lpfc_cmpl_els_edc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 			if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) ||
 			    FC_TLV_DESC_SZ_FROM_LENGTH(tlv) !=
 					sizeof(struct fc_diag_lnkflt_desc)) {
-				lpfc_printf_log(
-					phba, KERN_WARNING, LOG_CGN_MGMT,
+				lpfc_printf_log(phba, KERN_WARNING,
+					LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT,
 					"6462 Truncated Link Fault Diagnostic "
 					"descriptor[%d]: %d vs 0x%zx 0x%zx\n",
 					desc_cnt, bytes_remain,
 					FC_TLV_DESC_SZ_FROM_LENGTH(tlv),
-					sizeof(struct fc_diag_cg_sig_desc));
+					sizeof(struct fc_diag_lnkflt_desc));
 				goto out;
 			}
 			plnkflt = (struct fc_diag_lnkflt_desc *)tlv;
-			lpfc_printf_log(
-				phba, KERN_INFO, LOG_ELS | LOG_CGN_MGMT,
+			lpfc_printf_log(phba, KERN_INFO,
+				LOG_ELS | LOG_LDS_EVENT,
 				"4617 Link Fault Desc Data: 0x%08x 0x%08x "
 				"0x%08x 0x%08x 0x%08x\n",
 				be32_to_cpu(plnkflt->desc_tag),
@@ -4120,8 +4117,26 @@ out:
 }
 
 static void
-lpfc_format_edc_cgn_desc(struct lpfc_hba *phba, struct fc_diag_cg_sig_desc *cgd)
+lpfc_format_edc_lft_desc(struct lpfc_hba *phba, struct fc_tlv_desc *tlv)
 {
+	struct fc_diag_lnkflt_desc *lft = (struct fc_diag_lnkflt_desc *)tlv;
+
+	lft->desc_tag = cpu_to_be32(ELS_DTAG_LNK_FAULT_CAP);
+	lft->desc_len = cpu_to_be32(
+		FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_diag_lnkflt_desc));
+
+	lft->degrade_activate_threshold =
+		cpu_to_be32(phba->degrade_activate_threshold);
+	lft->degrade_deactivate_threshold =
+		cpu_to_be32(phba->degrade_deactivate_threshold);
+	lft->fec_degrade_interval = cpu_to_be32(phba->fec_degrade_interval);
+}
+
+static void
+lpfc_format_edc_cgn_desc(struct lpfc_hba *phba, struct fc_tlv_desc *tlv)
+{
+	struct fc_diag_cg_sig_desc *cgd = (struct fc_diag_cg_sig_desc *)tlv;
+
 	/* We are assuming cgd was zero'ed before calling this routine */
 
 	/* Configure the congestion detection capability */
@@ -4165,6 +4180,23 @@ lpfc_format_edc_cgn_desc(struct lpfc_hba *phba, struct fc_diag_cg_sig_desc *cgd)
 		cpu_to_be16(EDC_CG_SIGFREQ_MSEC);
 }
 
+static bool
+lpfc_link_is_lds_capable(struct lpfc_hba *phba)
+{
+	if (!(phba->lmt & LMT_64Gb))
+		return false;
+	if (phba->sli_rev != LPFC_SLI_REV4)
+		return false;
+
+	if (phba->sli4_hba.conf_trunk) {
+		if (phba->trunk_link.phy_lnk_speed == LPFC_USER_LINK_SPEED_64G)
+			return true;
+	} else if (phba->fc_linkspeed == LPFC_LINK_SPEED_64GHZ) {
+		return true;
+	}
+	return false;
+}
+
  /**
   * lpfc_issue_els_edc - Exchange Diagnostic Capabilities with the fabric.
   * @vport: pointer to a host virtual N_Port data structure.
@@ -4192,12 +4224,12 @@ lpfc_issue_els_edc(struct lpfc_vport *vport, uint8_t retry)
 {
 	struct lpfc_hba  *phba = vport->phba;
 	struct lpfc_iocbq *elsiocb;
-	struct lpfc_els_edc_req *edc_req;
-	struct fc_diag_cg_sig_desc *cgn_desc;
+	struct fc_els_edc *edc_req;
+	struct fc_tlv_desc *tlv;
 	u16 cmdsize;
 	struct lpfc_nodelist *ndlp;
 	u8 *pcmd = NULL;
-	u32 edc_req_size, cgn_desc_size;
+	u32 cgn_desc_size, lft_desc_size;
 	int rc;
 
 	if (vport->port_type == LPFC_NPIV_PORT)
@@ -4207,13 +4239,17 @@ lpfc_issue_els_edc(struct lpfc_vport *vport, uint8_t retry)
 	if (!ndlp || ndlp->nlp_state != NLP_STE_UNMAPPED_NODE)
 		return -ENODEV;
 
-	/* If HBA doesn't support signals, drop into RDF */
-	if (!phba->cgn_init_reg_signal)
+	cgn_desc_size = (phba->cgn_init_reg_signal) ?
+				sizeof(struct fc_diag_cg_sig_desc) : 0;
+	lft_desc_size = (lpfc_link_is_lds_capable(phba)) ?
+				sizeof(struct fc_diag_lnkflt_desc) : 0;
+	cmdsize = cgn_desc_size + lft_desc_size;
+
+	/* Skip EDC if no applicable descriptors */
+	if (!cmdsize)
 		goto try_rdf;
 
-	edc_req_size = sizeof(struct fc_els_edc);
-	cgn_desc_size = sizeof(struct fc_diag_cg_sig_desc);
-	cmdsize = edc_req_size + cgn_desc_size;
+	cmdsize += sizeof(struct fc_els_edc);
 	elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
 				     ndlp->nlp_DID, ELS_CMD_EDC);
 	if (!elsiocb)
@@ -4222,15 +4258,19 @@ lpfc_issue_els_edc(struct lpfc_vport *vport, uint8_t retry)
 	/* Configure the payload for the supported Diagnostics capabilities. */
 	pcmd = (u8 *)elsiocb->cmd_dmabuf->virt;
 	memset(pcmd, 0, cmdsize);
-	edc_req = (struct lpfc_els_edc_req *)pcmd;
-	edc_req->edc.desc_len = cpu_to_be32(cgn_desc_size);
-	edc_req->edc.edc_cmd = ELS_EDC;
-
-	cgn_desc = &edc_req->cgn_desc;
+	edc_req = (struct fc_els_edc *)pcmd;
+	edc_req->desc_len = cpu_to_be32(cgn_desc_size + lft_desc_size);
+	edc_req->edc_cmd = ELS_EDC;
+	tlv = edc_req->desc;
 
-	lpfc_format_edc_cgn_desc(phba, cgn_desc);
+	if (cgn_desc_size) {
+		lpfc_format_edc_cgn_desc(phba, tlv);
+		phba->cgn_sig_freq = lpfc_fabric_cgn_frequency;
+		tlv = fc_tlv_next_desc(tlv);
+	}
 
-	phba->cgn_sig_freq = lpfc_fabric_cgn_frequency;
+	if (lft_desc_size)
+		lpfc_format_edc_lft_desc(phba, tlv);
 
 	lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT,
 			 "4623 Xmit EDC to remote "
@@ -4676,47 +4716,52 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 		}
 		switch (stat.un.b.lsRjtRsnCode) {
 		case LSRJT_UNABLE_TPC:
-			/* The driver has a VALID PLOGI but the rport has
-			 * rejected the PRLI - can't do it now.  Delay
-			 * for 1 second and try again.
-			 *
-			 * However, if explanation is REQ_UNSUPPORTED there's
-			 * no point to retry PRLI.
+			/* Special case for PRLI LS_RJTs. Recall that lpfc
+			 * uses a single routine to issue both PRLI FC4 types.
+			 * If the PRLI is rejected because that FC4 type
+			 * isn't really supported, don't retry and cause
+			 * multiple transport registrations.  Otherwise, parse
+			 * the reason code/reason code explanation and take the
+			 * appropriate action.
 			 */
-			if ((cmd == ELS_CMD_PRLI || cmd == ELS_CMD_NVMEPRLI) &&
-			    stat.un.b.lsRjtRsnCodeExp !=
-			    LSEXP_REQ_UNSUPPORTED) {
-				delay = 1000;
-				maxretry = lpfc_max_els_tries + 1;
-				retry = 1;
-				break;
-			}
-
-			/* Legacy bug fix code for targets with PLOGI delays. */
-			if (stat.un.b.lsRjtRsnCodeExp ==
-			    LSEXP_CMD_IN_PROGRESS) {
+			lpfc_printf_vlog(vport, KERN_INFO,
+					 LOG_DISCOVERY | LOG_ELS | LOG_NODE,
+					 "0153 ELS cmd x%x LS_RJT by x%x. "
+					 "RsnCode x%x RsnCodeExp x%x\n",
+					 cmd, did, stat.un.b.lsRjtRsnCode,
+					 stat.un.b.lsRjtRsnCodeExp);
+
+			switch (stat.un.b.lsRjtRsnCodeExp) {
+			case LSEXP_CANT_GIVE_DATA:
+			case LSEXP_CMD_IN_PROGRESS:
 				if (cmd == ELS_CMD_PLOGI) {
 					delay = 1000;
 					maxretry = 48;
 				}
 				retry = 1;
 				break;
-			}
-			if (stat.un.b.lsRjtRsnCodeExp ==
-			    LSEXP_CANT_GIVE_DATA) {
-				if (cmd == ELS_CMD_PLOGI) {
+			case LSEXP_REQ_UNSUPPORTED:
+			case LSEXP_NO_RSRC_ASSIGN:
+				/* These explanation codes get no retry. */
+				if (cmd == ELS_CMD_PRLI ||
+				    cmd == ELS_CMD_NVMEPRLI)
+					break;
+				fallthrough;
+			default:
+				/* Limit the delay and retry action to a limited
+				 * cmd set.  There are other ELS commands where
+				 * a retry is not expected.
+				 */
+				if (cmd == ELS_CMD_PLOGI ||
+				    cmd == ELS_CMD_PRLI ||
+				    cmd == ELS_CMD_NVMEPRLI) {
 					delay = 1000;
-					maxretry = 48;
+					maxretry = lpfc_max_els_tries + 1;
+					retry = 1;
 				}
-				retry = 1;
-				break;
-			}
-			if (cmd == ELS_CMD_PLOGI) {
-				delay = 1000;
-				maxretry = lpfc_max_els_tries + 1;
-				retry = 1;
 				break;
 			}
+
 			if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
 			  (cmd == ELS_CMD_FDISC) &&
 			  (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){
@@ -4797,13 +4842,8 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 			 */
 			if (stat.un.b.lsRjtRsnCodeExp ==
 			    LSEXP_REQ_UNSUPPORTED) {
-				if (cmd == ELS_CMD_PRLI) {
-					spin_lock_irq(&ndlp->lock);
-					ndlp->nlp_flag |= NLP_FCP_PRLI_RJT;
-					spin_unlock_irq(&ndlp->lock);
-					retry = 0;
+				if (cmd == ELS_CMD_PRLI)
 					goto out_retry;
-				}
 			}
 			break;
 		}
@@ -5784,14 +5824,21 @@ lpfc_issue_els_edc_rsp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
 		       struct lpfc_nodelist *ndlp)
 {
 	struct lpfc_hba  *phba = vport->phba;
-	struct lpfc_els_edc_rsp *edc_rsp;
+	struct fc_els_edc_resp *edc_rsp;
+	struct fc_tlv_desc *tlv;
 	struct lpfc_iocbq *elsiocb;
 	IOCB_t *icmd, *cmd;
 	union lpfc_wqe128 *wqe;
+	u32 cgn_desc_size, lft_desc_size;
+	u16 cmdsize;
 	uint8_t *pcmd;
-	int cmdsize, rc;
+	int rc;
 
-	cmdsize = sizeof(struct lpfc_els_edc_rsp);
+	cmdsize = sizeof(struct fc_els_edc_resp);
+	cgn_desc_size = sizeof(struct fc_diag_cg_sig_desc);
+	lft_desc_size = (lpfc_link_is_lds_capable(phba)) ?
+				sizeof(struct fc_diag_lnkflt_desc) : 0;
+	cmdsize += cgn_desc_size + lft_desc_size;
 	elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, cmdiocb->retry,
 				     ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
 	if (!elsiocb)
@@ -5813,15 +5860,19 @@ lpfc_issue_els_edc_rsp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
 	pcmd = elsiocb->cmd_dmabuf->virt;
 	memset(pcmd, 0, cmdsize);
 
-	edc_rsp = (struct lpfc_els_edc_rsp *)pcmd;
-	edc_rsp->edc_rsp.acc_hdr.la_cmd = ELS_LS_ACC;
-	edc_rsp->edc_rsp.desc_list_len = cpu_to_be32(
-		FC_TLV_DESC_LENGTH_FROM_SZ(struct lpfc_els_edc_rsp));
-	edc_rsp->edc_rsp.lsri.desc_tag = cpu_to_be32(ELS_DTAG_LS_REQ_INFO);
-	edc_rsp->edc_rsp.lsri.desc_len = cpu_to_be32(
+	edc_rsp = (struct fc_els_edc_resp *)pcmd;
+	edc_rsp->acc_hdr.la_cmd = ELS_LS_ACC;
+	edc_rsp->desc_list_len = cpu_to_be32(sizeof(struct fc_els_lsri_desc) +
+						cgn_desc_size + lft_desc_size);
+	edc_rsp->lsri.desc_tag = cpu_to_be32(ELS_DTAG_LS_REQ_INFO);
+	edc_rsp->lsri.desc_len = cpu_to_be32(
 		FC_TLV_DESC_LENGTH_FROM_SZ(struct fc_els_lsri_desc));
-	edc_rsp->edc_rsp.lsri.rqst_w0.cmd = ELS_EDC;
-	lpfc_format_edc_cgn_desc(phba, &edc_rsp->cgn_desc);
+	edc_rsp->lsri.rqst_w0.cmd = ELS_EDC;
+	tlv = edc_rsp->desc;
+	lpfc_format_edc_cgn_desc(phba, tlv);
+	tlv = fc_tlv_next_desc(tlv);
+	if (lft_desc_size)
+		lpfc_format_edc_lft_desc(phba, tlv);
 
 	lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
 			      "Issue EDC ACC:      did:x%x flg:x%x refcnt %d",
@@ -6006,7 +6057,7 @@ lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
 	if (prli_fc4_req == PRLI_FCP_TYPE) {
 		cmdsize = sizeof(uint32_t) + sizeof(PRLI);
 		elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK));
-	} else if (prli_fc4_req & PRLI_NVME_TYPE) {
+	} else if (prli_fc4_req == PRLI_NVME_TYPE) {
 		cmdsize = sizeof(uint32_t) + sizeof(struct lpfc_nvme_prli);
 		elsrspcmd = (ELS_CMD_ACC | (ELS_CMD_NVMEPRLI & ~ELS_RSP_MASK));
 	} else {
@@ -6069,7 +6120,7 @@ lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
 		npr->ConfmComplAllowed = 1;
 		npr->prliType = PRLI_FCP_TYPE;
 		npr->initiatorFunc = 1;
-	} else if (prli_fc4_req & PRLI_NVME_TYPE) {
+	} else if (prli_fc4_req == PRLI_NVME_TYPE) {
 		/* Respond with an NVME PRLI Type */
 		npr_nvme = (struct lpfc_nvme_prli *) pcmd;
 		bf_set(prli_type_code, npr_nvme, PRLI_NVME_TYPE);
@@ -9086,7 +9137,7 @@ lpfc_els_rcv_edc(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
 	uint32_t *ptr, dtag;
 	const char *dtag_nm;
 	int desc_cnt = 0, bytes_remain;
-	bool rcv_cap_desc = false;
+	struct fc_diag_lnkflt_desc *plnkflt;
 
 	payload = cmdiocb->cmd_dmabuf->virt;
 
@@ -9094,7 +9145,8 @@ lpfc_els_rcv_edc(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
 	bytes_remain = be32_to_cpu(edc_req->desc_len);
 
 	ptr = (uint32_t *)payload;
-	lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_CGN_MGMT,
+	lpfc_printf_vlog(vport, KERN_INFO,
+			 LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT,
 			 "3319 Rcv EDC payload len %d: x%x x%x x%x\n",
 			 bytes_remain, be32_to_cpu(*ptr),
 			 be32_to_cpu(*(ptr + 1)), be32_to_cpu(*(ptr + 2)));
@@ -9113,9 +9165,10 @@ lpfc_els_rcv_edc(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
 	 * cycle through EDC diagnostic descriptors to find the
 	 * congestion signaling capability descriptor
 	 */
-	while (bytes_remain && !rcv_cap_desc) {
+	while (bytes_remain) {
 		if (bytes_remain < FC_TLV_DESC_HDR_SZ) {
-			lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT,
+			lpfc_printf_log(phba, KERN_WARNING,
+					LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT,
 					"6464 Truncated TLV hdr on "
 					"Diagnostic descriptor[%d]\n",
 					desc_cnt);
@@ -9128,16 +9181,27 @@ lpfc_els_rcv_edc(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
 			if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) ||
 			    FC_TLV_DESC_SZ_FROM_LENGTH(tlv) !=
 				sizeof(struct fc_diag_lnkflt_desc)) {
-				lpfc_printf_log(
-					phba, KERN_WARNING, LOG_CGN_MGMT,
+				lpfc_printf_log(phba, KERN_WARNING,
+					LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT,
 					"6465 Truncated Link Fault Diagnostic "
 					"descriptor[%d]: %d vs 0x%zx 0x%zx\n",
 					desc_cnt, bytes_remain,
 					FC_TLV_DESC_SZ_FROM_LENGTH(tlv),
-					sizeof(struct fc_diag_cg_sig_desc));
+					sizeof(struct fc_diag_lnkflt_desc));
 				goto out;
 			}
-			/* No action for Link Fault descriptor for now */
+			plnkflt = (struct fc_diag_lnkflt_desc *)tlv;
+			lpfc_printf_log(phba, KERN_INFO,
+				LOG_ELS | LOG_LDS_EVENT,
+				"4626 Link Fault Desc Data: x%08x len x%x "
+				"da x%x dd x%x interval x%x\n",
+				be32_to_cpu(plnkflt->desc_tag),
+				be32_to_cpu(plnkflt->desc_len),
+				be32_to_cpu(
+					plnkflt->degrade_activate_threshold),
+				be32_to_cpu(
+					plnkflt->degrade_deactivate_threshold),
+				be32_to_cpu(plnkflt->fec_degrade_interval));
 			break;
 		case ELS_DTAG_CG_SIGNAL_CAP:
 			if (bytes_remain < FC_TLV_DESC_SZ_FROM_LENGTH(tlv) ||
@@ -9164,11 +9228,11 @@ lpfc_els_rcv_edc(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
 
 			lpfc_least_capable_settings(
 				phba, (struct fc_diag_cg_sig_desc *)tlv);
-			rcv_cap_desc = true;
 			break;
 		default:
 			dtag_nm = lpfc_get_tlv_dtag_nm(dtag);
-			lpfc_printf_log(phba, KERN_WARNING, LOG_CGN_MGMT,
+			lpfc_printf_log(phba, KERN_WARNING,
+					LOG_ELS | LOG_CGN_MGMT | LOG_LDS_EVENT,
 					"6467 unknown Diagnostic "
 					"Descriptor[%d]: tag x%x (%s)\n",
 					desc_cnt, dtag, dtag_nm);
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index 2645def612e6..c7f834ba8edb 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -1242,6 +1242,8 @@ lpfc_linkdown(struct lpfc_hba *phba)
 			phba->trunk_link.link1.state = 0;
 			phba->trunk_link.link2.state = 0;
 			phba->trunk_link.link3.state = 0;
+			phba->trunk_link.phy_lnk_speed =
+						LPFC_LINK_SPEED_UNKNOWN;
 			phba->sli4_hba.link_state.logical_speed =
 						LPFC_LINK_SPEED_UNKNOWN;
 		}
@@ -1353,8 +1355,13 @@ lpfc_linkup_port(struct lpfc_vport *vport)
 				   FCH_EVT_LINKUP, 0);
 
 	spin_lock_irq(shost->host_lock);
-	vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
-			    FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
+	if (phba->defer_flogi_acc_flag)
+		vport->fc_flag &= ~(FC_ABORT_DISCOVERY | FC_RSCN_MODE |
+				    FC_NLP_MORE | FC_RSCN_DISCOVERY);
+	else
+		vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI |
+				    FC_ABORT_DISCOVERY | FC_RSCN_MODE |
+				    FC_NLP_MORE | FC_RSCN_DISCOVERY);
 	vport->fc_flag |= FC_NDISC_ACTIVE;
 	vport->fc_ns_retry = 0;
 	spin_unlock_irq(shost->host_lock);
@@ -1392,7 +1399,6 @@ lpfc_linkup(struct lpfc_hba *phba)
 
 	/* reinitialize initial HBA flag */
 	phba->hba_flag &= ~(HBA_FLOGI_ISSUED | HBA_RHBA_CMPL);
-	phba->defer_flogi_acc_flag = false;
 
 	return 0;
 }
@@ -2964,7 +2970,7 @@ lpfc_mbx_cmpl_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
 	uint32_t boot_flag, addr_mode;
 	uint16_t next_fcf_index, fcf_index;
 	uint16_t current_fcf_index;
-	uint16_t vlan_id;
+	uint16_t vlan_id = LPFC_FCOE_NULL_VID;
 	int rc;
 
 	/* If link state is not up, stop the roundrobin failover process */
@@ -3069,7 +3075,7 @@ lpfc_mbx_cmpl_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
 	struct fcf_record *new_fcf_record;
 	uint32_t boot_flag, addr_mode;
 	uint16_t fcf_index, next_fcf_index;
-	uint16_t vlan_id;
+	uint16_t vlan_id =  LPFC_FCOE_NULL_VID;
 	int rc;
 
 	/* If link state is not up, no need to proceed */
@@ -3790,6 +3796,9 @@ lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 		if (phba->cmf_active_mode != LPFC_CFG_OFF)
 			lpfc_cmf_signal_init(phba);
 
+		if (phba->lmt & LMT_64Gb)
+			lpfc_read_lds_params(phba);
+
 	} else if (attn_type == LPFC_ATT_LINK_DOWN ||
 		   attn_type == LPFC_ATT_UNEXP_WWPN) {
 		phba->fc_stat.LinkDown++;
@@ -4389,8 +4398,11 @@ out:
 			rc = lpfc_issue_els_edc(vport, 0);
 			lpfc_printf_log(phba, KERN_INFO,
 					LOG_INIT | LOG_ELS | LOG_DISCOVERY,
-					"4220 EDC issue error x%x, Data: x%x\n",
+					"4220 Issue EDC status x%x Data x%x\n",
 					rc, phba->cgn_init_reg_signal);
+		} else if (phba->lmt & LMT_64Gb) {
+			/* may send link fault capability descriptor */
+			lpfc_issue_els_edc(vport, 0);
 		} else {
 			lpfc_issue_els_rdf(vport, 0);
 		}
@@ -4788,22 +4800,6 @@ lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	    new_state == NLP_STE_UNMAPPED_NODE)
 		lpfc_nlp_reg_node(vport, ndlp);
 
-	if ((new_state ==  NLP_STE_MAPPED_NODE) &&
-		(vport->stat_data_enabled)) {
-		/*
-		 * A new target is discovered, if there is no buffer for
-		 * statistical data collection allocate buffer.
-		 */
-		ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
-					 sizeof(struct lpfc_scsicmd_bkt),
-					 GFP_KERNEL);
-
-		if (!ndlp->lat_data)
-			lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT,
-				"0286 lpfc_nlp_state_cleanup failed to "
-				"allocate statistical data buffer DID "
-				"0x%x\n", ndlp->nlp_DID);
-	}
 	/*
 	 * If the node just added to Mapped list was an FCP target,
 	 * but the remote port registration failed or assigned a target
@@ -6648,7 +6644,6 @@ lpfc_nlp_release(struct kref *kref)
 	ndlp->fc4_xpt_flags = 0;
 
 	/* free ndlp memory for final ndlp release */
-	kfree(ndlp->lat_data);
 	if (ndlp->phba->sli_rev == LPFC_SLI_REV4)
 		mempool_free(ndlp->active_rrqs_xri_bitmap,
 				ndlp->phba->active_rrq_pool);
diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h
index 071983e2cdfe..5c283936ff08 100644
--- a/drivers/scsi/lpfc/lpfc_hw.h
+++ b/drivers/scsi/lpfc/lpfc_hw.h
@@ -703,6 +703,7 @@ struct ls_rjt {	/* Structure is in Big Endian format */
 #define LSEXP_OUT_OF_RESOURCE   0x29
 #define LSEXP_CANT_GIVE_DATA    0x2A
 #define LSEXP_REQ_UNSUPPORTED   0x2C
+#define LSEXP_NO_RSRC_ASSIGN    0x52
 			uint8_t vendorUnique;	/* FC Word 0, bit  0: 7 */
 		} b;
 	} un;
@@ -1441,30 +1442,56 @@ struct lpfc_vmid_gallapp_ident_list {
 
 /* Definitions for HBA / Port attribute entries */
 
-/* Attribute Entry */
-struct lpfc_fdmi_attr_entry {
-	union {
-		uint32_t AttrInt;
-		uint8_t  AttrTypes[32];
-		uint8_t  AttrString[256];
-		struct lpfc_name AttrWWN;
-	} un;
+/* Attribute Entry Structures */
+
+struct lpfc_fdmi_attr_u32 {
+	__be16 type;
+	__be16 len;
+	__be32 value_u32;
 };
 
-struct lpfc_fdmi_attr_def { /* Defined in TLV format */
-	/* Structure is in Big Endian format */
-	uint32_t AttrType:16;
-	uint32_t AttrLen:16;
-	/* Marks start of Value (ATTRIBUTE_ENTRY) */
-	struct lpfc_fdmi_attr_entry AttrValue;
-} __packed;
+struct lpfc_fdmi_attr_wwn {
+	__be16 type;
+	__be16 len;
+
+	/* Keep as u8[8] instead of __be64 to avoid accidental zero padding
+	 * by compiler
+	 */
+	u8 name[8];
+};
+
+struct lpfc_fdmi_attr_fullwwn {
+	__be16 type;
+	__be16 len;
+
+	/* Keep as u8[8] instead of __be64 to avoid accidental zero padding
+	 * by compiler
+	 */
+	u8 nname[8];
+	u8 pname[8];
+};
+
+struct lpfc_fdmi_attr_fc4types {
+	__be16 type;
+	__be16 len;
+	u8 value_types[32];
+};
+
+struct lpfc_fdmi_attr_string {
+	__be16 type;
+	__be16 len;
+	char value_string[256];
+};
+
+/* Maximum FDMI attribute length is Type+Len (4 bytes) + 256 byte string */
+#define FDMI_MAX_ATTRLEN	sizeof(struct lpfc_fdmi_attr_string)
 
 /*
  * HBA Attribute Block
  */
 struct lpfc_fdmi_attr_block {
 	uint32_t EntryCnt;		/* Number of HBA attribute entries */
-	struct lpfc_fdmi_attr_entry Entry;	/* Variable-length array */
+	/* Variable Length Attribute Entry TLV's follow */
 };
 
 /*
diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h
index 4527fef23ae7..5288fc69908a 100644
--- a/drivers/scsi/lpfc/lpfc_hw4.h
+++ b/drivers/scsi/lpfc/lpfc_hw4.h
@@ -738,6 +738,7 @@ struct lpfc_register {
 #define lpfc_sliport_eqdelay_id_WORD	word0
 #define LPFC_SEC_TO_USEC		1000000
 #define LPFC_SEC_TO_MSEC		1000
+#define LPFC_MSECS_TO_SECS(msecs) ((msecs) / 1000)
 
 /* The following Registers apply to SLI4 if_type 0 UCNAs. They typically
  * reside in BAR 2.
@@ -3483,9 +3484,10 @@ struct lpfc_sli4_parameters {
 
 #define LPFC_SET_UE_RECOVERY		0x10
 #define LPFC_SET_MDS_DIAGS		0x12
-#define LPFC_SET_CGN_SIGNAL		0x1f
 #define LPFC_SET_DUAL_DUMP		0x1e
+#define LPFC_SET_CGN_SIGNAL		0x1f
 #define LPFC_SET_ENABLE_MI		0x21
+#define LPFC_SET_LD_SIGNAL		0x23
 #define LPFC_SET_ENABLE_CMF		0x24
 struct lpfc_mbx_set_feature {
 	struct mbox_header header;
@@ -3516,13 +3518,17 @@ struct lpfc_mbx_set_feature {
 #define lpfc_mbx_set_feature_cmf_SHIFT		0
 #define lpfc_mbx_set_feature_cmf_MASK		0x00000001
 #define lpfc_mbx_set_feature_cmf_WORD		word6
+#define lpfc_mbx_set_feature_lds_qry_SHIFT	0
+#define lpfc_mbx_set_feature_lds_qry_MASK	0x00000001
+#define lpfc_mbx_set_feature_lds_qry_WORD	word6
+#define LPFC_QUERY_LDS_OP		1
 #define lpfc_mbx_set_feature_mi_SHIFT		0
 #define lpfc_mbx_set_feature_mi_MASK		0x0000ffff
 #define lpfc_mbx_set_feature_mi_WORD		word6
 #define lpfc_mbx_set_feature_milunq_SHIFT	16
 #define lpfc_mbx_set_feature_milunq_MASK	0x0000ffff
 #define lpfc_mbx_set_feature_milunq_WORD	word6
-	uint32_t word7;
+	u32 word7;
 #define lpfc_mbx_set_feature_UERP_SHIFT 0
 #define lpfc_mbx_set_feature_UERP_MASK  0x0000ffff
 #define lpfc_mbx_set_feature_UERP_WORD  word7
@@ -3536,6 +3542,8 @@ struct lpfc_mbx_set_feature {
 #define lpfc_mbx_set_feature_CGN_acqe_freq_SHIFT 0
 #define lpfc_mbx_set_feature_CGN_acqe_freq_MASK  0x000000ff
 #define lpfc_mbx_set_feature_CGN_acqe_freq_WORD  word8
+	u32 word9;
+	u32 word10;
 };
 
 
@@ -4313,7 +4321,7 @@ struct lpfc_acqe_cgn_signal {
 struct lpfc_acqe_sli {
 	uint32_t event_data1;
 	uint32_t event_data2;
-	uint32_t reserved;
+	uint32_t event_data3;
 	uint32_t trailer;
 #define LPFC_SLI_EVENT_TYPE_PORT_ERROR		0x1
 #define LPFC_SLI_EVENT_TYPE_OVER_TEMP		0x2
@@ -4326,6 +4334,7 @@ struct lpfc_acqe_sli {
 #define LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN	0xF
 #define LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE	0x10
 #define LPFC_SLI_EVENT_TYPE_CGN_SIGNAL		0x11
+#define LPFC_SLI_EVENT_TYPE_RD_SIGNAL           0x12
 };
 
 /*
@@ -4798,6 +4807,9 @@ struct cmf_sync_wqe {
 #define cmf_sync_cqid_WORD	word11
 	uint32_t read_bytes;
 	uint32_t word13;
+#define cmf_sync_period_SHIFT	16
+#define cmf_sync_period_MASK	0x0000ffff
+#define cmf_sync_period_WORD	word13
 	uint32_t word14;
 	uint32_t word15;
 };
@@ -5046,22 +5058,6 @@ struct lpfc_grp_hdr {
 	{ FPIN_CONGN_SEVERITY_ERROR,		"Alarm" },	\
 }
 
-/* EDC supports two descriptors.  When allocated, it is the
- * size of this structure plus each supported descriptor.
- */
-struct lpfc_els_edc_req {
-	struct fc_els_edc               edc;       /* hdr up to descriptors */
-	struct fc_diag_cg_sig_desc      cgn_desc;  /* 1st descriptor */
-};
-
-/* Minimum structure defines for the EDC response.
- * Balance is in buffer.
- */
-struct lpfc_els_edc_rsp {
-	struct fc_els_edc_resp          edc_rsp;   /* hdr up to descriptors */
-	struct fc_diag_cg_sig_desc      cgn_desc;  /* 1st descriptor */
-};
-
 /* Used for logging FPIN messages */
 #define LPFC_FPIN_WWPN_LINE_SZ  128
 #define LPFC_FPIN_WWPN_LINE_CNT 6
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 55a1ad6eed03..b49c39569386 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -325,8 +325,7 @@ lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 	prog_id_word = pmboxq->u.mb.un.varWords[7];
 
 	/* Decode the Option rom version word to a readable string */
-	if (prg->dist < 4)
-		dist = dist_char[prg->dist];
+	dist = dist_char[prg->dist];
 
 	if ((prg->dist == 3) && (prg->num == 0))
 		snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
@@ -2258,6 +2257,101 @@ lpfc_handle_latt_err_exit:
 	return;
 }
 
+static void
+lpfc_fill_vpd(struct lpfc_hba *phba, uint8_t *vpd, int length, int *pindex)
+{
+	int i, j;
+
+	while (length > 0) {
+		/* Look for Serial Number */
+		if ((vpd[*pindex] == 'S') && (vpd[*pindex + 1] == 'N')) {
+			*pindex += 2;
+			i = vpd[*pindex];
+			*pindex += 1;
+			j = 0;
+			length -= (3+i);
+			while (i--) {
+				phba->SerialNumber[j++] = vpd[(*pindex)++];
+				if (j == 31)
+					break;
+			}
+			phba->SerialNumber[j] = 0;
+			continue;
+		} else if ((vpd[*pindex] == 'V') && (vpd[*pindex + 1] == '1')) {
+			phba->vpd_flag |= VPD_MODEL_DESC;
+			*pindex += 2;
+			i = vpd[*pindex];
+			*pindex += 1;
+			j = 0;
+			length -= (3+i);
+			while (i--) {
+				phba->ModelDesc[j++] = vpd[(*pindex)++];
+				if (j == 255)
+					break;
+			}
+			phba->ModelDesc[j] = 0;
+			continue;
+		} else if ((vpd[*pindex] == 'V') && (vpd[*pindex + 1] == '2')) {
+			phba->vpd_flag |= VPD_MODEL_NAME;
+			*pindex += 2;
+			i = vpd[*pindex];
+			*pindex += 1;
+			j = 0;
+			length -= (3+i);
+			while (i--) {
+				phba->ModelName[j++] = vpd[(*pindex)++];
+				if (j == 79)
+					break;
+			}
+			phba->ModelName[j] = 0;
+			continue;
+		} else if ((vpd[*pindex] == 'V') && (vpd[*pindex + 1] == '3')) {
+			phba->vpd_flag |= VPD_PROGRAM_TYPE;
+			*pindex += 2;
+			i = vpd[*pindex];
+			*pindex += 1;
+			j = 0;
+			length -= (3+i);
+			while (i--) {
+				phba->ProgramType[j++] = vpd[(*pindex)++];
+				if (j == 255)
+					break;
+			}
+			phba->ProgramType[j] = 0;
+			continue;
+		} else if ((vpd[*pindex] == 'V') && (vpd[*pindex + 1] == '4')) {
+			phba->vpd_flag |= VPD_PORT;
+			*pindex += 2;
+			i = vpd[*pindex];
+			*pindex += 1;
+			j = 0;
+			length -= (3 + i);
+			while (i--) {
+				if ((phba->sli_rev == LPFC_SLI_REV4) &&
+				    (phba->sli4_hba.pport_name_sta ==
+				     LPFC_SLI4_PPNAME_GET)) {
+					j++;
+					(*pindex)++;
+				} else
+					phba->Port[j++] = vpd[(*pindex)++];
+				if (j == 19)
+					break;
+			}
+			if ((phba->sli_rev != LPFC_SLI_REV4) ||
+			    (phba->sli4_hba.pport_name_sta ==
+			     LPFC_SLI4_PPNAME_NON))
+				phba->Port[j] = 0;
+			continue;
+		} else {
+			*pindex += 2;
+			i = vpd[*pindex];
+			*pindex += 1;
+			*pindex += i;
+			length -= (3 + i);
+		}
+	}
+}
+
 /**
  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
  * @phba: pointer to lpfc hba data structure.
@@ -2277,7 +2371,7 @@ lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
 {
 	uint8_t lenlo, lenhi;
 	int Length;
-	int i, j;
+	int i;
 	int finished = 0;
 	int index = 0;
 
@@ -2310,101 +2404,10 @@ lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
 			Length = ((((unsigned short)lenhi) << 8) + lenlo);
 			if (Length > len - index)
 				Length = len - index;
-			while (Length > 0) {
-			/* Look for Serial Number */
-			if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
-				index += 2;
-				i = vpd[index];
-				index += 1;
-				j = 0;
-				Length -= (3+i);
-				while(i--) {
-					phba->SerialNumber[j++] = vpd[index++];
-					if (j == 31)
-						break;
-				}
-				phba->SerialNumber[j] = 0;
-				continue;
-			}
-			else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
-				phba->vpd_flag |= VPD_MODEL_DESC;
-				index += 2;
-				i = vpd[index];
-				index += 1;
-				j = 0;
-				Length -= (3+i);
-				while(i--) {
-					phba->ModelDesc[j++] = vpd[index++];
-					if (j == 255)
-						break;
-				}
-				phba->ModelDesc[j] = 0;
-				continue;
-			}
-			else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
-				phba->vpd_flag |= VPD_MODEL_NAME;
-				index += 2;
-				i = vpd[index];
-				index += 1;
-				j = 0;
-				Length -= (3+i);
-				while(i--) {
-					phba->ModelName[j++] = vpd[index++];
-					if (j == 79)
-						break;
-				}
-				phba->ModelName[j] = 0;
-				continue;
-			}
-			else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
-				phba->vpd_flag |= VPD_PROGRAM_TYPE;
-				index += 2;
-				i = vpd[index];
-				index += 1;
-				j = 0;
-				Length -= (3+i);
-				while(i--) {
-					phba->ProgramType[j++] = vpd[index++];
-					if (j == 255)
-						break;
-				}
-				phba->ProgramType[j] = 0;
-				continue;
-			}
-			else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
-				phba->vpd_flag |= VPD_PORT;
-				index += 2;
-				i = vpd[index];
-				index += 1;
-				j = 0;
-				Length -= (3+i);
-				while(i--) {
-					if ((phba->sli_rev == LPFC_SLI_REV4) &&
-					    (phba->sli4_hba.pport_name_sta ==
-					     LPFC_SLI4_PPNAME_GET)) {
-						j++;
-						index++;
-					} else
-						phba->Port[j++] = vpd[index++];
-					if (j == 19)
-						break;
-				}
-				if ((phba->sli_rev != LPFC_SLI_REV4) ||
-				    (phba->sli4_hba.pport_name_sta ==
-				     LPFC_SLI4_PPNAME_NON))
-					phba->Port[j] = 0;
-				continue;
-			}
-			else {
-				index += 2;
-				i = vpd[index];
-				index += 1;
-				index += i;
-				Length -= (3 + i);
-			}
-		}
-		finished = 0;
-		break;
+
+			lpfc_fill_vpd(phba, vpd, Length, &index);
+			finished = 0;
+			break;
 		case 0x78:
 			finished = 1;
 			break;
@@ -4614,6 +4617,17 @@ lpfc_get_wwpn(struct lpfc_hba *phba)
 		return rol64(wwn, 32);
 }
 
+static unsigned short lpfc_get_sg_tablesize(struct lpfc_hba *phba)
+{
+	if (phba->sli_rev == LPFC_SLI_REV4)
+		if (phba->cfg_xpsgl && !phba->nvmet_support)
+			return LPFC_MAX_SG_TABLESIZE;
+		else
+			return phba->cfg_scsi_seg_cnt;
+	else
+		return phba->cfg_sg_seg_cnt;
+}
+
 /**
  * lpfc_vmid_res_alloc - Allocates resources for VMID
  * @phba: pointer to lpfc hba data structure.
@@ -4716,42 +4730,26 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
 
 	/* Seed template for SCSI host registration */
 	if (dev == &phba->pcidev->dev) {
-		template = &phba->port_template;
-
 		if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
 			/* Seed physical port template */
-			memcpy(template, &lpfc_template, sizeof(*template));
+			template = &lpfc_template;
 
 			if (use_no_reset_hba)
 				/* template is for a no reset SCSI Host */
 				template->eh_host_reset_handler = NULL;
 
-			/* Template for all vports this physical port creates */
-			memcpy(&phba->vport_template, &lpfc_template,
-			       sizeof(*template));
-			phba->vport_template.shost_groups = lpfc_vport_groups;
-			phba->vport_template.eh_bus_reset_handler = NULL;
-			phba->vport_template.eh_host_reset_handler = NULL;
-			phba->vport_template.vendor_id = 0;
-
-			/* Initialize the host templates with updated value */
-			if (phba->sli_rev == LPFC_SLI_REV4) {
-				template->sg_tablesize = phba->cfg_scsi_seg_cnt;
-				phba->vport_template.sg_tablesize =
-					phba->cfg_scsi_seg_cnt;
-			} else {
-				template->sg_tablesize = phba->cfg_sg_seg_cnt;
-				phba->vport_template.sg_tablesize =
-					phba->cfg_sg_seg_cnt;
-			}
-
+			/* Seed updated value of sg_tablesize */
+			template->sg_tablesize = lpfc_get_sg_tablesize(phba);
 		} else {
 			/* NVMET is for physical port only */
-			memcpy(template, &lpfc_template_nvme,
-			       sizeof(*template));
+			template = &lpfc_template_nvme;
 		}
 	} else {
-		template = &phba->vport_template;
+		/* Seed vport template */
+		template = &lpfc_vport_template;
+
+		/* Seed updated value of sg_tablesize */
+		template->sg_tablesize = lpfc_get_sg_tablesize(phba);
 	}
 
 	shost = scsi_host_alloc(template, sizeof(struct lpfc_vport));
@@ -4784,11 +4782,6 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
 
 		shost->dma_boundary =
 			phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
-
-		if (phba->cfg_xpsgl && !phba->nvmet_support)
-			shost->sg_tablesize = LPFC_MAX_SG_TABLESIZE;
-		else
-			shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
 	} else
 		/* SLI-3 has a limited number of hardware queues (3),
 		 * thus there is only one for FCP processing.
@@ -5569,38 +5562,12 @@ lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
 void
 lpfc_cgn_dump_rxmonitor(struct lpfc_hba *phba)
 {
-	struct rxtable_entry *entry;
-	int cnt = 0, head, tail, last, start;
-
-	head = atomic_read(&phba->rxtable_idx_head);
-	tail = atomic_read(&phba->rxtable_idx_tail);
-	if (!phba->rxtable || head == tail) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
-				"4411 Rxtable is empty\n");
-		return;
-	}
-	last = tail;
-	start = head;
-
-	/* Display the last LPFC_MAX_RXMONITOR_DUMP entries from the rxtable */
-	while (start != last) {
-		if (start)
-			start--;
-		else
-			start = LPFC_MAX_RXMONITOR_ENTRY - 1;
-		entry = &phba->rxtable[start];
+	if (!phba->rx_monitor) {
 		lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
-				"4410 %02d: MBPI %lld Xmit %lld Cmpl %lld "
-				"Lat %lld ASz %lld Info %02d BWUtil %d "
-				"Int %d slot %d\n",
-				cnt, entry->max_bytes_per_interval,
-				entry->total_bytes, entry->rcv_bytes,
-				entry->avg_io_latency, entry->avg_io_size,
-				entry->cmf_info, entry->timer_utilization,
-				entry->timer_interval, start);
-		cnt++;
-		if (cnt >= LPFC_MAX_RXMONITOR_DUMP)
-			return;
+				"4411 Rx Monitor Info is empty.\n");
+	} else {
+		lpfc_rx_monitor_report(phba, phba->rx_monitor, NULL, 0,
+				       LPFC_MAX_RXMONITOR_DUMP);
 	}
 }
 
@@ -6007,9 +5974,8 @@ lpfc_cmf_timer(struct hrtimer *timer)
 {
 	struct lpfc_hba *phba = container_of(timer, struct lpfc_hba,
 					     cmf_timer);
-	struct rxtable_entry *entry;
+	struct rx_info_entry entry;
 	uint32_t io_cnt;
-	uint32_t head, tail;
 	uint32_t busy, max_read;
 	uint64_t total, rcv, lat, mbpi, extra, cnt;
 	int timer_interval = LPFC_CMF_INTERVAL;
@@ -6129,40 +6095,30 @@ lpfc_cmf_timer(struct hrtimer *timer)
 	}
 
 	/* Save rxmonitor information for debug */
-	if (phba->rxtable) {
-		head = atomic_xchg(&phba->rxtable_idx_head,
-				   LPFC_RXMONITOR_TABLE_IN_USE);
-		entry = &phba->rxtable[head];
-		entry->total_bytes = total;
-		entry->cmf_bytes = total + extra;
-		entry->rcv_bytes = rcv;
-		entry->cmf_busy = busy;
-		entry->cmf_info = phba->cmf_active_info;
+	if (phba->rx_monitor) {
+		entry.total_bytes = total;
+		entry.cmf_bytes = total + extra;
+		entry.rcv_bytes = rcv;
+		entry.cmf_busy = busy;
+		entry.cmf_info = phba->cmf_active_info;
 		if (io_cnt) {
-			entry->avg_io_latency = div_u64(lat, io_cnt);
-			entry->avg_io_size = div_u64(rcv, io_cnt);
+			entry.avg_io_latency = div_u64(lat, io_cnt);
+			entry.avg_io_size = div_u64(rcv, io_cnt);
 		} else {
-			entry->avg_io_latency = 0;
-			entry->avg_io_size = 0;
+			entry.avg_io_latency = 0;
+			entry.avg_io_size = 0;
 		}
-		entry->max_read_cnt = max_read;
-		entry->io_cnt = io_cnt;
-		entry->max_bytes_per_interval = mbpi;
+		entry.max_read_cnt = max_read;
+		entry.io_cnt = io_cnt;
+		entry.max_bytes_per_interval = mbpi;
 		if (phba->cmf_active_mode == LPFC_CFG_MANAGED)
-			entry->timer_utilization = phba->cmf_last_ts;
+			entry.timer_utilization = phba->cmf_last_ts;
 		else
-			entry->timer_utilization = ms;
-		entry->timer_interval = ms;
+			entry.timer_utilization = ms;
+		entry.timer_interval = ms;
 		phba->cmf_last_ts = 0;
 
-		/* Increment rxtable index */
-		head = (head + 1) % LPFC_MAX_RXMONITOR_ENTRY;
-		tail = atomic_read(&phba->rxtable_idx_tail);
-		if (head == tail) {
-			tail = (tail + 1) % LPFC_MAX_RXMONITOR_ENTRY;
-			atomic_set(&phba->rxtable_idx_tail, tail);
-		}
-		atomic_set(&phba->rxtable_idx_head, head);
+		lpfc_rx_monitor_record(phba->rx_monitor, &entry);
 	}
 
 	if (phba->cmf_active_mode == LPFC_CFG_MONITOR) {
@@ -6232,6 +6188,7 @@ lpfc_update_trunk_link_status(struct lpfc_hba *phba,
 {
 	uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
 	uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
+	u8 cnt = 0;
 
 	phba->sli4_hba.link_state.speed =
 		lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
@@ -6250,26 +6207,36 @@ lpfc_update_trunk_link_status(struct lpfc_hba *phba,
 			bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
 			? LPFC_LINK_UP : LPFC_LINK_DOWN;
 		phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
+		cnt++;
 	}
 	if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
 		phba->trunk_link.link1.state =
 			bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
 			? LPFC_LINK_UP : LPFC_LINK_DOWN;
 		phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
+		cnt++;
 	}
 	if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
 		phba->trunk_link.link2.state =
 			bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
 			? LPFC_LINK_UP : LPFC_LINK_DOWN;
 		phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
+		cnt++;
 	}
 	if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
 		phba->trunk_link.link3.state =
 			bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
 			? LPFC_LINK_UP : LPFC_LINK_DOWN;
 		phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
+		cnt++;
 	}
 
+	if (cnt)
+		phba->trunk_link.phy_lnk_speed =
+			phba->sli4_hba.link_state.logical_speed / (cnt * 1000);
+	else
+		phba->trunk_link.phy_lnk_speed = LPFC_LINK_SPEED_UNKNOWN;
+
 	lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 			"2910 Async FC Trunking Event - Speed:%d\n"
 			"\tLogical speed:%d "
@@ -6347,7 +6314,7 @@ lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
 	if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
 	    LPFC_FC_LA_TYPE_LINK_DOWN)
 		phba->sli4_hba.link_state.logical_speed = 0;
-	else if	(!phba->sli4_hba.conf_trunk)
+	else if (!phba->sli4_hba.conf_trunk)
 		phba->sli4_hba.link_state.logical_speed =
 				bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
 
@@ -6465,7 +6432,7 @@ lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
 			"2901 Async SLI event - Type:%d, Event Data: x%08x "
 			"x%08x x%08x x%08x\n", evt_type,
 			acqe_sli->event_data1, acqe_sli->event_data2,
-			acqe_sli->reserved, acqe_sli->trailer);
+			acqe_sli->event_data3, acqe_sli->trailer);
 
 	port_name = phba->Port[0];
 	if (port_name == 0x00)
@@ -6494,7 +6461,7 @@ lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
 		temp_event_data.event_code = LPFC_NORMAL_TEMP;
 		temp_event_data.data = (uint32_t)acqe_sli->event_data1;
 
-		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+		lpfc_printf_log(phba, KERN_INFO, LOG_SLI | LOG_LDS_EVENT,
 				"3191 Normal Temperature:%d Celsius - Port Name %c\n",
 				acqe_sli->event_data1, port_name);
 
@@ -6672,6 +6639,15 @@ lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
 			}
 		}
 		break;
+	case LPFC_SLI_EVENT_TYPE_RD_SIGNAL:
+		/* May be accompanied by a temperature event */
+		lpfc_printf_log(phba, KERN_INFO,
+				LOG_SLI | LOG_LINK_EVENT | LOG_LDS_EVENT,
+				"2902 Remote Degrade Signaling: x%08x x%08x "
+				"x%08x\n",
+				acqe_sli->event_data1, acqe_sli->event_data2,
+				acqe_sli->event_data3);
+		break;
 	default:
 		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
 				"3193 Unrecognized SLI event, type: 0x%x",
@@ -7085,6 +7061,12 @@ lpfc_cgn_params_val(struct lpfc_hba *phba, struct lpfc_cgn_param *p_cfg_param)
 	spin_unlock_irq(&phba->hbalock);
 }
 
+static const char * const lpfc_cmf_mode_to_str[] = {
+	"OFF",
+	"MANAGED",
+	"MONITOR",
+};
+
 /**
  * lpfc_cgn_params_parse - Process a FW cong parm change event
  * @phba: pointer to lpfc hba data structure.
@@ -7104,6 +7086,7 @@ lpfc_cgn_params_parse(struct lpfc_hba *phba,
 {
 	struct lpfc_cgn_info *cp;
 	uint32_t crc, oldmode;
+	char acr_string[4] = {0};
 
 	/* Make sure the FW has encoded the correct magic number to
 	 * validate the congestion parameter in FW memory.
@@ -7180,9 +7163,6 @@ lpfc_cgn_params_parse(struct lpfc_hba *phba,
 					lpfc_issue_els_edc(phba->pport, 0);
 				break;
 			case LPFC_CFG_MONITOR:
-				lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
-						"4661 Switch from MANAGED to "
-						"`MONITOR mode\n");
 				phba->cmf_max_bytes_per_interval =
 					phba->cmf_link_byte_count;
 
@@ -7201,14 +7181,26 @@ lpfc_cgn_params_parse(struct lpfc_hba *phba,
 					lpfc_issue_els_edc(phba->pport, 0);
 				break;
 			case LPFC_CFG_MANAGED:
-				lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
-						"4662 Switch from MONITOR to "
-						"MANAGED mode\n");
 				lpfc_cmf_signal_init(phba);
 				break;
 			}
 			break;
 		}
+		if (oldmode != LPFC_CFG_OFF ||
+		    oldmode != phba->cgn_p.cgn_param_mode) {
+			if (phba->cgn_p.cgn_param_mode == LPFC_CFG_MANAGED)
+				scnprintf(acr_string, sizeof(acr_string), "%u",
+					  phba->cgn_p.cgn_param_level0);
+			else
+				scnprintf(acr_string, sizeof(acr_string), "NA");
+
+			dev_info(&phba->pcidev->dev, "%d: "
+				 "4663 CMF: Mode %s acr %s\n",
+				 phba->brd_no,
+				 lpfc_cmf_mode_to_str
+				 [phba->cgn_p.cgn_param_mode],
+				 acr_string);
+		}
 	} else {
 		lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
 				"4669 FW cgn parm buf wrong magic 0x%x "
@@ -8315,8 +8307,10 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
 					&phba->pcidev->dev,
 					phba->cfg_sg_dma_buf_size,
 					i, 0);
-	if (!phba->lpfc_sg_dma_buf_pool)
+	if (!phba->lpfc_sg_dma_buf_pool) {
+		rc = -ENOMEM;
 		goto out_free_bsmbx;
+	}
 
 	phba->lpfc_cmd_rsp_buf_pool =
 			dma_pool_create("lpfc_cmd_rsp_buf_pool",
@@ -8324,8 +8318,10 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
 					sizeof(struct fcp_cmnd) +
 					sizeof(struct fcp_rsp),
 					i, 0);
-	if (!phba->lpfc_cmd_rsp_buf_pool)
+	if (!phba->lpfc_cmd_rsp_buf_pool) {
+		rc = -ENOMEM;
 		goto out_free_sg_dma_buf;
+	}
 
 	mempool_free(mboxq, phba->mbox_mem_pool);
 
@@ -12416,7 +12412,7 @@ lpfc_hba_eq_hdl_array_init(struct lpfc_hba *phba)
 
 	for (i = 0; i < phba->cfg_irq_chann; i++) {
 		eqhdl = lpfc_get_eq_hdl(i);
-		eqhdl->irq = LPFC_VECTOR_MAP_EMPTY;
+		eqhdl->irq = LPFC_IRQ_EMPTY;
 		eqhdl->phba = phba;
 	}
 }
@@ -12789,7 +12785,7 @@ static void __lpfc_cpuhp_remove(struct lpfc_hba *phba)
 
 static void lpfc_cpuhp_remove(struct lpfc_hba *phba)
 {
-	if (phba->pport->fc_flag & FC_OFFLINE_MODE)
+	if (phba->pport && (phba->pport->fc_flag & FC_OFFLINE_MODE))
 		return;
 
 	__lpfc_cpuhp_remove(phba);
@@ -13053,9 +13049,17 @@ lpfc_sli4_enable_msix(struct lpfc_hba *phba)
 			 LPFC_DRIVER_HANDLER_NAME"%d", index);
 
 		eqhdl->idx = index;
-		rc = request_irq(pci_irq_vector(phba->pcidev, index),
-			 &lpfc_sli4_hba_intr_handler, 0,
-			 name, eqhdl);
+		rc = pci_irq_vector(phba->pcidev, index);
+		if (rc < 0) {
+			lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+					"0489 MSI-X fast-path (%d) "
+					"pci_irq_vec failed (%d)\n", index, rc);
+			goto cfg_fail_out;
+		}
+		eqhdl->irq = rc;
+
+		rc = request_irq(eqhdl->irq, &lpfc_sli4_hba_intr_handler, 0,
+				 name, eqhdl);
 		if (rc) {
 			lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 					"0486 MSI-X fast-path (%d) "
@@ -13063,8 +13067,6 @@ lpfc_sli4_enable_msix(struct lpfc_hba *phba)
 			goto cfg_fail_out;
 		}
 
-		eqhdl->irq = pci_irq_vector(phba->pcidev, index);
-
 		if (aff_mask) {
 			/* If found a neighboring online cpu, set affinity */
 			if (cpu_select < nr_cpu_ids)
@@ -13181,7 +13183,14 @@ lpfc_sli4_enable_msi(struct lpfc_hba *phba)
 	}
 
 	eqhdl = lpfc_get_eq_hdl(0);
-	eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
+	rc = pci_irq_vector(phba->pcidev, 0);
+	if (rc < 0) {
+		pci_free_irq_vectors(phba->pcidev);
+		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+				"0496 MSI pci_irq_vec failed (%d)\n", rc);
+		return rc;
+	}
+	eqhdl->irq = rc;
 
 	cpu = cpumask_first(cpu_present_mask);
 	lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ, cpu);
@@ -13208,8 +13217,8 @@ lpfc_sli4_enable_msi(struct lpfc_hba *phba)
  * MSI-X -> MSI -> IRQ.
  *
  * Return codes
- * 	0 - successful
- * 	other values - error
+ *	Interrupt mode (2, 1, 0) - successful
+ *	LPFC_INTR_ERROR - error
  **/
 static uint32_t
 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
@@ -13254,7 +13263,14 @@ lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
 			intr_mode = 0;
 
 			eqhdl = lpfc_get_eq_hdl(0);
-			eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
+			retval = pci_irq_vector(phba->pcidev, 0);
+			if (retval < 0) {
+				lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+					"0502 INTR pci_irq_vec failed (%d)\n",
+					 retval);
+				return LPFC_INTR_ERROR;
+			}
+			eqhdl->irq = retval;
 
 			cpu = cpumask_first(cpu_present_mask);
 			lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ,
diff --git a/drivers/scsi/lpfc/lpfc_logmsg.h b/drivers/scsi/lpfc/lpfc_logmsg.h
index 4d455da9cd69..b39cefcd8703 100644
--- a/drivers/scsi/lpfc/lpfc_logmsg.h
+++ b/drivers/scsi/lpfc/lpfc_logmsg.h
@@ -35,7 +35,7 @@
 #define LOG_FCP_ERROR	0x00001000	/* log errors, not underruns */
 #define LOG_LIBDFC	0x00002000	/* Libdfc events */
 #define LOG_VPORT	0x00004000	/* NPIV events */
-#define LOG_SECURITY	0x00008000	/* Security events */
+#define LOG_LDS_EVENT	0x00008000	/* Link Degrade Signaling events */
 #define LOG_EVENT	0x00010000	/* CT,TEMP,DUMP, logging */
 #define LOG_FIP		0x00020000	/* FIP events */
 #define LOG_FCP_UNDER	0x00040000	/* FCP underruns errors */
diff --git a/drivers/scsi/lpfc/lpfc_mem.c b/drivers/scsi/lpfc/lpfc_mem.c
index 870e53b8f81d..89cbeba06aea 100644
--- a/drivers/scsi/lpfc/lpfc_mem.c
+++ b/drivers/scsi/lpfc/lpfc_mem.c
@@ -1,7 +1,7 @@
 /*******************************************************************
  * This file is part of the Emulex Linux Device Driver for         *
  * Fibre Channel Host Bus Adapters.                                *
- * Copyright (C) 2017-2021 Broadcom. All Rights Reserved. The term *
+ * Copyright (C) 2017-2022 Broadcom. All Rights Reserved. The term *
  * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.     *
  * Copyright (C) 2004-2014 Emulex.  All rights reserved.           *
  * EMULEX and SLI are trademarks of Emulex.                        *
@@ -344,9 +344,12 @@ lpfc_mem_free_all(struct lpfc_hba *phba)
 		phba->cgn_i = NULL;
 	}
 
-	/* Free RX table */
-	kfree(phba->rxtable);
-	phba->rxtable = NULL;
+	/* Free RX Monitor */
+	if (phba->rx_monitor) {
+		lpfc_rx_monitor_destroy_ring(phba->rx_monitor);
+		kfree(phba->rx_monitor);
+		phba->rx_monitor = NULL;
+	}
 
 	/* Free the iocb lookup array */
 	kfree(psli->iocbq_lookup);
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 938a5e435943..7a1563564df7 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -112,62 +112,6 @@ lpfc_sli4_set_rsp_sgl_last(struct lpfc_hba *phba,
 #define LPFC_INVALID_REFTAG ((u32)-1)
 
 /**
- * lpfc_update_stats - Update statistical data for the command completion
- * @vport: The virtual port on which this call is executing.
- * @lpfc_cmd: lpfc scsi command object pointer.
- *
- * This function is called when there is a command completion and this
- * function updates the statistical data for the command completion.
- **/
-static void
-lpfc_update_stats(struct lpfc_vport *vport, struct lpfc_io_buf *lpfc_cmd)
-{
-	struct lpfc_hba *phba = vport->phba;
-	struct lpfc_rport_data *rdata;
-	struct lpfc_nodelist *pnode;
-	struct scsi_cmnd *cmd = lpfc_cmd->pCmd;
-	unsigned long flags;
-	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
-	unsigned long latency;
-	int i;
-
-	if (!vport->stat_data_enabled ||
-	    vport->stat_data_blocked ||
-	    (cmd->result))
-		return;
-
-	latency = jiffies_to_msecs((long)jiffies - (long)lpfc_cmd->start_time);
-	rdata = lpfc_cmd->rdata;
-	pnode = rdata->pnode;
-
-	spin_lock_irqsave(shost->host_lock, flags);
-	if (!pnode ||
-	    !pnode->lat_data ||
-	    (phba->bucket_type == LPFC_NO_BUCKET)) {
-		spin_unlock_irqrestore(shost->host_lock, flags);
-		return;
-	}
-
-	if (phba->bucket_type == LPFC_LINEAR_BUCKET) {
-		i = (latency + phba->bucket_step - 1 - phba->bucket_base)/
-			phba->bucket_step;
-		/* check array subscript bounds */
-		if (i < 0)
-			i = 0;
-		else if (i >= LPFC_MAX_BUCKET_COUNT)
-			i = LPFC_MAX_BUCKET_COUNT - 1;
-	} else {
-		for (i = 0; i < LPFC_MAX_BUCKET_COUNT-1; i++)
-			if (latency <= (phba->bucket_base +
-				((1<<i)*phba->bucket_step)))
-				break;
-	}
-
-	pnode->lat_data[i].cmd_count++;
-	spin_unlock_irqrestore(shost->host_lock, flags);
-}
-
-/**
  * lpfc_rampdown_queue_depth - Post RAMP_DOWN_QUEUE event to worker thread
  * @phba: The Hba for which this call is being executed.
  *
@@ -4335,8 +4279,6 @@ lpfc_fcp_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn,
 				 cmd->retries, scsi_get_resid(cmd));
 	}
 
-	lpfc_update_stats(vport, lpfc_cmd);
-
 	if (vport->cfg_max_scsicmpl_time &&
 	    time_after(jiffies, lpfc_cmd->start_time +
 	    msecs_to_jiffies(vport->cfg_max_scsicmpl_time))) {
@@ -4617,7 +4559,6 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
 				 scsi_get_resid(cmd));
 	}
 
-	lpfc_update_stats(vport, lpfc_cmd);
 	if (vport->cfg_max_scsicmpl_time &&
 	   time_after(jiffies, lpfc_cmd->start_time +
 		msecs_to_jiffies(vport->cfg_max_scsicmpl_time))) {
@@ -6853,3 +6794,30 @@ struct scsi_host_template lpfc_template = {
 	.change_queue_depth	= scsi_change_queue_depth,
 	.track_queue_depth	= 1,
 };
+
+struct scsi_host_template lpfc_vport_template = {
+	.module			= THIS_MODULE,
+	.name			= LPFC_DRIVER_NAME,
+	.proc_name		= LPFC_DRIVER_NAME,
+	.info			= lpfc_info,
+	.queuecommand		= lpfc_queuecommand,
+	.eh_timed_out		= fc_eh_timed_out,
+	.eh_should_retry_cmd    = fc_eh_should_retry_cmd,
+	.eh_abort_handler	= lpfc_abort_handler,
+	.eh_device_reset_handler = lpfc_device_reset_handler,
+	.eh_target_reset_handler = lpfc_target_reset_handler,
+	.eh_bus_reset_handler	= NULL,
+	.eh_host_reset_handler	= NULL,
+	.slave_alloc		= lpfc_slave_alloc,
+	.slave_configure	= lpfc_slave_configure,
+	.slave_destroy		= lpfc_slave_destroy,
+	.scan_finished		= lpfc_scan_finished,
+	.this_id		= -1,
+	.sg_tablesize		= LPFC_DEFAULT_SG_SEG_CNT,
+	.cmd_per_lun		= LPFC_CMD_PER_LUN,
+	.shost_groups		= lpfc_vport_groups,
+	.max_sectors		= 0xFFFFFFFF,
+	.vendor_id		= 0,
+	.change_queue_depth	= scsi_change_queue_depth,
+	.track_queue_depth	= 1,
+};
diff --git a/drivers/scsi/lpfc/lpfc_scsi.h b/drivers/scsi/lpfc/lpfc_scsi.h
index 3836d7f6a575..eae56944f31b 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.h
+++ b/drivers/scsi/lpfc/lpfc_scsi.h
@@ -1,7 +1,7 @@
 /*******************************************************************
  * This file is part of the Emulex Linux Device Driver for         *
  * Fibre Channel Host Bus Adapters.                                *
- * Copyright (C) 2017-2021 Broadcom. All Rights Reserved. The term *
+ * Copyright (C) 2017-2022 Broadcom. All Rights Reserved. The term *
  * “Broadcom” refers to Broadcom Inc and/or its subsidiaries.  *
  * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
  * EMULEX and SLI are trademarks of Emulex.                        *
@@ -126,10 +126,6 @@ struct fcp_cmnd {
 
 };
 
-struct lpfc_scsicmd_bkt {
-	uint32_t cmd_count;
-};
-
 #define LPFC_SCSI_DMA_EXT_SIZE	264
 #define LPFC_BPL_SIZE		1024
 #define MDAC_DIRECT_CMD		0x22
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 608016725db9..99d06dc7ddf6 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -1916,6 +1916,7 @@ lpfc_issue_cmf_sync_wqe(struct lpfc_hba *phba, u32 ms, u64 total)
 	unsigned long iflags;
 	u32 ret_val;
 	u32 atot, wtot, max;
+	u16 warn_sync_period = 0;
 
 	/* First address any alarm / warning activity */
 	atot = atomic_xchg(&phba->cgn_sync_alarm_cnt, 0);
@@ -1970,10 +1971,14 @@ lpfc_issue_cmf_sync_wqe(struct lpfc_hba *phba, u32 ms, u64 total)
 				lpfc_acqe_cgn_frequency;
 			bf_set(cmf_sync_wsigmax, &wqe->cmf_sync, max);
 			bf_set(cmf_sync_wsigcnt, &wqe->cmf_sync, wtot);
+			warn_sync_period = lpfc_acqe_cgn_frequency;
 		} else {
 			/* We hit a FPIN warning condition */
 			bf_set(cmf_sync_wfpinmax, &wqe->cmf_sync, 1);
 			bf_set(cmf_sync_wfpincnt, &wqe->cmf_sync, 1);
+			if (phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ)
+				warn_sync_period =
+				LPFC_MSECS_TO_SECS(phba->cgn_fpin_frequency);
 		}
 	}
 
@@ -1989,6 +1994,7 @@ initpath:
 	bf_set(cmf_sync_reqtag, &wqe->cmf_sync, sync_buf->iotag);
 
 	bf_set(cmf_sync_qosd, &wqe->cmf_sync, 1);
+	bf_set(cmf_sync_period, &wqe->cmf_sync, warn_sync_period);
 
 	bf_set(cmf_sync_cmd_type, &wqe->cmf_sync, CMF_SYNC_COMMAND);
 	bf_set(cmf_sync_wqec, &wqe->cmf_sync, 1);
@@ -2850,6 +2856,7 @@ void
 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 {
 	struct lpfc_vport  *vport = pmb->vport;
+	struct lpfc_dmabuf *mp;
 	struct lpfc_nodelist *ndlp;
 	struct Scsi_Host *shost;
 	uint16_t rpi, vpi;
@@ -2862,6 +2869,12 @@ lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 	if (!(phba->pport->load_flag & FC_UNLOADING) &&
 	    pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
 	    !pmb->u.mb.mbxStatus) {
+		mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
+		if (mp) {
+			pmb->ctx_buf = NULL;
+			lpfc_mbuf_free(phba, mp->virt, mp->phys);
+			kfree(mp);
+		}
 		rpi = pmb->u.mb.un.varWords[0];
 		vpi = pmb->u.mb.un.varRegLogin.vpi;
 		if (phba->sli_rev == LPFC_SLI_REV4)
@@ -6202,6 +6215,9 @@ lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
 	struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
 	LPFC_MBOXQ_t *mbox;
 
+	*extnt_count = 0;
+	*extnt_size = 0;
+
 	mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 	if (!mbox)
 		return -ENOMEM;
@@ -6817,8 +6833,13 @@ lpfc_set_features(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox,
 		bf_set(lpfc_mbx_set_feature_mi, &mbox->u.mqe.un.set_feature,
 		       phba->sli4_hba.pc_sli4_params.mi_ver);
 		break;
+	case LPFC_SET_LD_SIGNAL:
+		mbox->u.mqe.un.set_feature.feature = LPFC_SET_LD_SIGNAL;
+		mbox->u.mqe.un.set_feature.param_len = 16;
+		bf_set(lpfc_mbx_set_feature_lds_qry,
+		       &mbox->u.mqe.un.set_feature, LPFC_QUERY_LDS_OP);
+		break;
 	case LPFC_SET_ENABLE_CMF:
-		bf_set(lpfc_mbx_set_feature_dd, &mbox->u.mqe.un.set_feature, 1);
 		mbox->u.mqe.un.set_feature.feature = LPFC_SET_ENABLE_CMF;
 		mbox->u.mqe.un.set_feature.param_len = 4;
 		bf_set(lpfc_mbx_set_feature_cmf,
@@ -7814,6 +7835,62 @@ lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq,
 }
 
 static void
+lpfc_mbx_cmpl_read_lds_params(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
+{
+	union lpfc_sli4_cfg_shdr *shdr;
+	u32 shdr_status, shdr_add_status;
+
+	shdr = (union lpfc_sli4_cfg_shdr *)
+		&pmb->u.mqe.un.sli4_config.header.cfg_shdr;
+	shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+	shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+	if (shdr_status || shdr_add_status || pmb->u.mb.mbxStatus) {
+		lpfc_printf_log(phba, KERN_INFO, LOG_LDS_EVENT | LOG_MBOX,
+				"4622 SET_FEATURE (x%x) mbox failed, "
+				"status x%x add_status x%x, mbx status x%x\n",
+				LPFC_SET_LD_SIGNAL, shdr_status,
+				shdr_add_status, pmb->u.mb.mbxStatus);
+		phba->degrade_activate_threshold = 0;
+		phba->degrade_deactivate_threshold = 0;
+		phba->fec_degrade_interval = 0;
+		goto out;
+	}
+
+	phba->degrade_activate_threshold = pmb->u.mqe.un.set_feature.word7;
+	phba->degrade_deactivate_threshold = pmb->u.mqe.un.set_feature.word8;
+	phba->fec_degrade_interval = pmb->u.mqe.un.set_feature.word10;
+
+	lpfc_printf_log(phba, KERN_INFO, LOG_LDS_EVENT,
+			"4624 Success: da x%x dd x%x interval x%x\n",
+			phba->degrade_activate_threshold,
+			phba->degrade_deactivate_threshold,
+			phba->fec_degrade_interval);
+out:
+	mempool_free(pmb, phba->mbox_mem_pool);
+}
+
+int
+lpfc_read_lds_params(struct lpfc_hba *phba)
+{
+	LPFC_MBOXQ_t *mboxq;
+	int rc;
+
+	mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+	if (!mboxq)
+		return -ENOMEM;
+
+	lpfc_set_features(phba, mboxq, LPFC_SET_LD_SIGNAL);
+	mboxq->vport = phba->pport;
+	mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_lds_params;
+	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
+	if (rc == MBX_NOT_FINISHED) {
+		mempool_free(mboxq, phba->mbox_mem_pool);
+		return -EIO;
+	}
+	return 0;
+}
+
+static void
 lpfc_mbx_cmpl_cgn_set_ftrs(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 {
 	struct lpfc_vport *vport = pmb->vport;
@@ -7960,6 +8037,172 @@ static void lpfc_sli4_dip(struct lpfc_hba *phba)
 }
 
 /**
+ * lpfc_rx_monitor_create_ring - Initialize ring buffer for rx_monitor
+ * @rx_monitor: Pointer to lpfc_rx_info_monitor object
+ * @entries: Number of rx_info_entry objects to allocate in ring
+ *
+ * Return:
+ * 0 - Success
+ * ENOMEM - Failure to kmalloc
+ **/
+int lpfc_rx_monitor_create_ring(struct lpfc_rx_info_monitor *rx_monitor,
+				u32 entries)
+{
+	rx_monitor->ring = kmalloc_array(entries, sizeof(struct rx_info_entry),
+					 GFP_KERNEL);
+	if (!rx_monitor->ring)
+		return -ENOMEM;
+
+	rx_monitor->head_idx = 0;
+	rx_monitor->tail_idx = 0;
+	spin_lock_init(&rx_monitor->lock);
+	rx_monitor->entries = entries;
+
+	return 0;
+}
+
+/**
+ * lpfc_rx_monitor_destroy_ring - Free ring buffer for rx_monitor
+ * @rx_monitor: Pointer to lpfc_rx_info_monitor object
+ **/
+void lpfc_rx_monitor_destroy_ring(struct lpfc_rx_info_monitor *rx_monitor)
+{
+	spin_lock(&rx_monitor->lock);
+	kfree(rx_monitor->ring);
+	rx_monitor->ring = NULL;
+	rx_monitor->entries = 0;
+	rx_monitor->head_idx = 0;
+	rx_monitor->tail_idx = 0;
+	spin_unlock(&rx_monitor->lock);
+}
+
+/**
+ * lpfc_rx_monitor_record - Insert an entry into rx_monitor's ring
+ * @rx_monitor: Pointer to lpfc_rx_info_monitor object
+ * @entry: Pointer to rx_info_entry
+ *
+ * Used to insert an rx_info_entry into rx_monitor's ring.  Note that this is a
+ * deep copy of rx_info_entry not a shallow copy of the rx_info_entry ptr.
+ *
+ * This is called from lpfc_cmf_timer, which is in timer/softirq context.
+ *
+ * In cases of old data overflow, we do a best effort of FIFO order.
+ **/
+void lpfc_rx_monitor_record(struct lpfc_rx_info_monitor *rx_monitor,
+			    struct rx_info_entry *entry)
+{
+	struct rx_info_entry *ring = rx_monitor->ring;
+	u32 *head_idx = &rx_monitor->head_idx;
+	u32 *tail_idx = &rx_monitor->tail_idx;
+	spinlock_t *ring_lock = &rx_monitor->lock;
+	u32 ring_size = rx_monitor->entries;
+
+	spin_lock(ring_lock);
+	memcpy(&ring[*tail_idx], entry, sizeof(*entry));
+	*tail_idx = (*tail_idx + 1) % ring_size;
+
+	/* Best effort of FIFO saved data */
+	if (*tail_idx == *head_idx)
+		*head_idx = (*head_idx + 1) % ring_size;
+
+	spin_unlock(ring_lock);
+}
+
+/**
+ * lpfc_rx_monitor_report - Read out rx_monitor's ring
+ * @phba: Pointer to lpfc_hba object
+ * @rx_monitor: Pointer to lpfc_rx_info_monitor object
+ * @buf: Pointer to char buffer that will contain rx monitor info data
+ * @buf_len: Length buf including null char
+ * @max_read_entries: Maximum number of entries to read out of ring
+ *
+ * Used to dump/read what's in rx_monitor's ring buffer.
+ *
+ * If buf is NULL || buf_len == 0, then it is implied that we want to log the
+ * information to kmsg instead of filling out buf.
+ *
+ * Return:
+ * Number of entries read out of the ring
+ **/
+u32 lpfc_rx_monitor_report(struct lpfc_hba *phba,
+			   struct lpfc_rx_info_monitor *rx_monitor, char *buf,
+			   u32 buf_len, u32 max_read_entries)
+{
+	struct rx_info_entry *ring = rx_monitor->ring;
+	struct rx_info_entry *entry;
+	u32 *head_idx = &rx_monitor->head_idx;
+	u32 *tail_idx = &rx_monitor->tail_idx;
+	spinlock_t *ring_lock = &rx_monitor->lock;
+	u32 ring_size = rx_monitor->entries;
+	u32 cnt = 0;
+	char tmp[DBG_LOG_STR_SZ] = {0};
+	bool log_to_kmsg = (!buf || !buf_len) ? true : false;
+
+	if (!log_to_kmsg) {
+		/* clear the buffer to be sure */
+		memset(buf, 0, buf_len);
+
+		scnprintf(buf, buf_len, "\t%-16s%-16s%-16s%-16s%-8s%-8s%-8s"
+					"%-8s%-8s%-8s%-16s\n",
+					"MaxBPI", "Tot_Data_CMF",
+					"Tot_Data_Cmd", "Tot_Data_Cmpl",
+					"Lat(us)", "Avg_IO", "Max_IO", "Bsy",
+					"IO_cnt", "Info", "BWutil(ms)");
+	}
+
+	/* Needs to be _bh because record is called from timer interrupt
+	 * context
+	 */
+	spin_lock_bh(ring_lock);
+	while (*head_idx != *tail_idx) {
+		entry = &ring[*head_idx];
+
+		/* Read out this entry's data. */
+		if (!log_to_kmsg) {
+			/* If !log_to_kmsg, then store to buf. */
+			scnprintf(tmp, sizeof(tmp),
+				  "%03d:\t%-16llu%-16llu%-16llu%-16llu%-8llu"
+				  "%-8llu%-8llu%-8u%-8u%-8u%u(%u)\n",
+				  *head_idx, entry->max_bytes_per_interval,
+				  entry->cmf_bytes, entry->total_bytes,
+				  entry->rcv_bytes, entry->avg_io_latency,
+				  entry->avg_io_size, entry->max_read_cnt,
+				  entry->cmf_busy, entry->io_cnt,
+				  entry->cmf_info, entry->timer_utilization,
+				  entry->timer_interval);
+
+			/* Check for buffer overflow */
+			if ((strlen(buf) + strlen(tmp)) >= buf_len)
+				break;
+
+			/* Append entry's data to buffer */
+			strlcat(buf, tmp, buf_len);
+		} else {
+			lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
+					"4410 %02u: MBPI %llu Xmit %llu "
+					"Cmpl %llu Lat %llu ASz %llu Info %02u "
+					"BWUtil %u Int %u slot %u\n",
+					cnt, entry->max_bytes_per_interval,
+					entry->total_bytes, entry->rcv_bytes,
+					entry->avg_io_latency,
+					entry->avg_io_size, entry->cmf_info,
+					entry->timer_utilization,
+					entry->timer_interval, *head_idx);
+		}
+
+		*head_idx = (*head_idx + 1) % ring_size;
+
+		/* Don't feed more than max_read_entries */
+		cnt++;
+		if (cnt >= max_read_entries)
+			break;
+	}
+	spin_unlock_bh(ring_lock);
+
+	return cnt;
+}
+
+/**
  * lpfc_cmf_setup - Initialize idle_stat tracking
  * @phba: Pointer to HBA context object.
  *
@@ -8133,19 +8376,29 @@ no_cmf:
 	phba->cmf_interval_rate = LPFC_CMF_INTERVAL;
 
 	/* Allocate RX Monitor Buffer */
-	if (!phba->rxtable) {
-		phba->rxtable = kmalloc_array(LPFC_MAX_RXMONITOR_ENTRY,
-					      sizeof(struct rxtable_entry),
-					      GFP_KERNEL);
-		if (!phba->rxtable) {
+	if (!phba->rx_monitor) {
+		phba->rx_monitor = kzalloc(sizeof(*phba->rx_monitor),
+					   GFP_KERNEL);
+
+		if (!phba->rx_monitor) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 					"2644 Failed to alloc memory "
 					"for RX Monitor Buffer\n");
 			return -ENOMEM;
 		}
+
+		/* Instruct the rx_monitor object to instantiate its ring */
+		if (lpfc_rx_monitor_create_ring(phba->rx_monitor,
+						LPFC_MAX_RXMONITOR_ENTRY)) {
+			kfree(phba->rx_monitor);
+			phba->rx_monitor = NULL;
+			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+					"2645 Failed to alloc memory "
+					"for RX Monitor's Ring\n");
+			return -ENOMEM;
+		}
 	}
-	atomic_set(&phba->rxtable_idx_head, 0);
-	atomic_set(&phba->rxtable_idx_tail, 0);
+
 	return 0;
 }
 
@@ -10322,12 +10575,10 @@ static int
 __lpfc_sli_issue_fcp_io_s4(struct lpfc_hba *phba, uint32_t ring_number,
 			   struct lpfc_iocbq *piocb, uint32_t flag)
 {
-	int rc;
 	struct lpfc_io_buf *lpfc_cmd = piocb->io_buf;
 
 	lpfc_prep_embed_io(phba, lpfc_cmd);
-	rc = lpfc_sli4_issue_wqe(phba, lpfc_cmd->hdwq, piocb);
-	return rc;
+	return lpfc_sli4_issue_wqe(phba, lpfc_cmd->hdwq, piocb);
 }
 
 void
diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h
index 1ddad5b170a6..cbb1aa1cf025 100644
--- a/drivers/scsi/lpfc/lpfc_sli4.h
+++ b/drivers/scsi/lpfc/lpfc_sli4.h
@@ -489,7 +489,7 @@ struct lpfc_hba;
 #define LPFC_SLI4_HANDLER_NAME_SZ	16
 struct lpfc_hba_eq_hdl {
 	uint32_t idx;
-	uint16_t irq;
+	int irq;
 	char handler_name[LPFC_SLI4_HANDLER_NAME_SZ];
 	struct lpfc_hba *phba;
 	struct lpfc_queue *eq;
@@ -611,6 +611,8 @@ struct lpfc_vector_map_info {
 };
 #define LPFC_VECTOR_MAP_EMPTY	0xffff
 
+#define LPFC_IRQ_EMPTY 0xffffffff
+
 /* Multi-XRI pool */
 #define XRI_BATCH               8
 
diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h
index 63eba9928e4b..192d5630a44d 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 "14.2.0.5"
+#define LPFC_DRIVER_VERSION "14.2.0.7"
 #define LPFC_DRIVER_NAME		"lpfc"
 
 /* Used for SLI 2/3 */
diff --git a/drivers/scsi/lpfc/lpfc_vmid.c b/drivers/scsi/lpfc/lpfc_vmid.c
index f64ced04b912..ed1d7f7b88a3 100644
--- a/drivers/scsi/lpfc/lpfc_vmid.c
+++ b/drivers/scsi/lpfc/lpfc_vmid.c
@@ -245,9 +245,7 @@ int lpfc_vmid_get_appid(struct lpfc_vport *vport, char *uuid,
 		/* allocate the per cpu variable for holding */
 		/* the last access time stamp only if VMID is enabled */
 		if (!vmp->last_io_time)
-			vmp->last_io_time = __alloc_percpu(sizeof(u64),
-							   __alignof__(struct
-							   lpfc_vmid));
+			vmp->last_io_time = alloc_percpu_gfp(u64, GFP_ATOMIC);
 		if (!vmp->last_io_time) {
 			hash_del(&vmp->hnode);
 			vmp->flag = LPFC_VMID_SLOT_FREE;
diff --git a/drivers/scsi/lpfc/lpfc_vport.c b/drivers/scsi/lpfc/lpfc_vport.c
index e7efb025ed50..4d171f5c213f 100644
--- a/drivers/scsi/lpfc/lpfc_vport.c
+++ b/drivers/scsi/lpfc/lpfc_vport.c
@@ -809,74 +809,3 @@ lpfc_destroy_vport_work_array(struct lpfc_hba *phba, struct lpfc_vport **vports)
 	kfree(vports);
 }
 
-
-/**
- * lpfc_vport_reset_stat_data - Reset the statistical data for the vport
- * @vport: Pointer to vport object.
- *
- * This function resets the statistical data for the vport. This function
- * is called with the host_lock held
- **/
-void
-lpfc_vport_reset_stat_data(struct lpfc_vport *vport)
-{
-	struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL;
-
-	list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
-		if (ndlp->lat_data)
-			memset(ndlp->lat_data, 0, LPFC_MAX_BUCKET_COUNT *
-				sizeof(struct lpfc_scsicmd_bkt));
-	}
-}
-
-
-/**
- * lpfc_alloc_bucket - Allocate data buffer required for statistical data
- * @vport: Pointer to vport object.
- *
- * This function allocates data buffer required for all the FC
- * nodes of the vport to collect statistical data.
- **/
-void
-lpfc_alloc_bucket(struct lpfc_vport *vport)
-{
-	struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL;
-
-	list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
-
-		kfree(ndlp->lat_data);
-		ndlp->lat_data = NULL;
-
-		if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
-			ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
-					 sizeof(struct lpfc_scsicmd_bkt),
-					 GFP_ATOMIC);
-
-			if (!ndlp->lat_data)
-				lpfc_printf_vlog(vport, KERN_ERR,
-					LOG_TRACE_EVENT,
-					"0287 lpfc_alloc_bucket failed to "
-					"allocate statistical data buffer DID "
-					"0x%x\n", ndlp->nlp_DID);
-		}
-	}
-}
-
-/**
- * lpfc_free_bucket - Free data buffer required for statistical data
- * @vport: Pointer to vport object.
- *
- * Th function frees statistical data buffer of all the FC
- * nodes of the vport.
- **/
-void
-lpfc_free_bucket(struct lpfc_vport *vport)
-{
-	struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL;
-
-	list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
-
-		kfree(ndlp->lat_data);
-		ndlp->lat_data = NULL;
-	}
-}
diff --git a/drivers/scsi/lpfc/lpfc_vport.h b/drivers/scsi/lpfc/lpfc_vport.h
index f4b8528dd2e7..fa60c146c169 100644
--- a/drivers/scsi/lpfc/lpfc_vport.h
+++ b/drivers/scsi/lpfc/lpfc_vport.h
@@ -1,7 +1,7 @@
 /*******************************************************************
  * This file is part of the Emulex Linux Device Driver for         *
  * Fibre Channel Host Bus Adapters.                                *
- * Copyright (C) 2017-2018 Broadcom. All Rights Reserved. The term *
+ * Copyright (C) 2017-2022 Broadcom. All Rights Reserved. The term *
  * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.     *
  * Copyright (C) 2004-2006 Emulex.  All rights reserved.           *
  * EMULEX and SLI are trademarks of Emulex.                        *
@@ -115,8 +115,4 @@ struct vport_cmd_tag {
 void lpfc_vport_set_state(struct lpfc_vport *vport,
 			  enum fc_vport_state new_state);
 
-void lpfc_vport_reset_stat_data(struct lpfc_vport *);
-void lpfc_alloc_bucket(struct lpfc_vport *);
-void lpfc_free_bucket(struct lpfc_vport *);
-
 #endif /* H_LPFC_VPORT */
diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c
index 157c3bdb50be..132de68c14e9 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.c
+++ b/drivers/scsi/megaraid/megaraid_mbox.c
@@ -3979,7 +3979,7 @@ megaraid_mbox_app_hndl_show(struct device *dev, struct device_attribute *attr, c
 
 	app_hndl = mraid_mm_adapter_app_handle(adapter->unique_id);
 
-	return snprintf(buf, 8, "%u\n", app_hndl);
+	return sysfs_emit(buf, "%u\n", app_hndl);
 }
 
 
@@ -4048,7 +4048,7 @@ megaraid_mbox_ld_show(struct device *dev, struct device_attribute *attr, char *b
 		}
 	}
 
-	return snprintf(buf, 36, "%d %d %d %d\n", scsi_id, logical_drv,
+	return sysfs_emit(buf, "%d %d %d %d\n", scsi_id, logical_drv,
 			ldid_map, app_hndl);
 }
 
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 4ae85d590801..9be4ba61a076 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -4021,10 +4021,8 @@ megasas_deplete_reply_queue(struct megasas_instance *instance,
 	u32 mfiStatus;
 	u32 fw_state;
 
-	if ((mfiStatus = instance->instancet->check_reset(instance,
-					instance->reg_set)) == 1) {
+	if (instance->instancet->check_reset(instance, instance->reg_set) == 1)
 		return IRQ_HANDLED;
-	}
 
 	mfiStatus = instance->instancet->clear_intr(instance);
 	if (mfiStatus == 0) {
@@ -5155,9 +5153,9 @@ static void megasas_update_ext_vd_details(struct megasas_instance *instance)
 		fusion->current_map_sz = ventura_map_sz;
 		fusion->max_map_sz = ventura_map_sz;
 	} else {
-		fusion->old_map_sz =  sizeof(struct MR_FW_RAID_MAP) +
-					(sizeof(struct MR_LD_SPAN_MAP) *
-					(instance->fw_supported_vd_count - 1));
+		fusion->old_map_sz =
+			struct_size((struct MR_FW_RAID_MAP *)0, ldSpanMap,
+				    instance->fw_supported_vd_count);
 		fusion->new_map_sz =  sizeof(struct MR_FW_RAID_MAP_EXT);
 
 		fusion->max_map_sz =
@@ -5790,10 +5788,10 @@ megasas_setup_jbod_map(struct megasas_instance *instance)
 {
 	int i;
 	struct fusion_context *fusion = instance->ctrl_context;
-	u32 pd_seq_map_sz;
+	size_t pd_seq_map_sz;
 
-	pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
-		(sizeof(struct MR_PD_CFG_SEQ) * (MAX_PHYSICAL_DEVICES - 1));
+	pd_seq_map_sz = struct_size((struct MR_PD_CFG_SEQ_NUM_SYNC *)0, seq,
+				    MAX_PHYSICAL_DEVICES);
 
 	instance->use_seqnum_jbod_fp =
 		instance->support_seqnum_jbod_fp;
@@ -7968,7 +7966,7 @@ static void megasas_detach_one(struct pci_dev *pdev)
 	struct Scsi_Host *host;
 	struct megasas_instance *instance;
 	struct fusion_context *fusion;
-	u32 pd_seq_map_sz;
+	size_t pd_seq_map_sz;
 
 	instance = pci_get_drvdata(pdev);
 
@@ -8040,9 +8038,9 @@ skip_firing_dcmds:
 
 	if (instance->adapter_type != MFI_SERIES) {
 		megasas_release_fusion(instance);
-		pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
-				(sizeof(struct MR_PD_CFG_SEQ) *
-					(MAX_PHYSICAL_DEVICES - 1));
+		pd_seq_map_sz =
+			struct_size((struct MR_PD_CFG_SEQ_NUM_SYNC *)0,
+				    seq, MAX_PHYSICAL_DEVICES);
 		for (i = 0; i < 2 ; i++) {
 			if (fusion->ld_map[i])
 				dma_free_coherent(&instance->pdev->dev,
diff --git a/drivers/scsi/megaraid/megaraid_sas_fp.c b/drivers/scsi/megaraid/megaraid_sas_fp.c
index 83f69c33b01a..da1cad1ee123 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fp.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fp.c
@@ -326,9 +326,9 @@ u8 MR_ValidateMapInfo(struct megasas_instance *instance, u64 map_id)
 	else if (instance->supportmax256vd)
 		expected_size = sizeof(struct MR_FW_RAID_MAP_EXT);
 	else
-		expected_size =
-			(sizeof(struct MR_FW_RAID_MAP) - sizeof(struct MR_LD_SPAN_MAP) +
-			(sizeof(struct MR_LD_SPAN_MAP) * le16_to_cpu(pDrvRaidMap->ldCount)));
+		expected_size = struct_size((struct MR_FW_RAID_MAP *)0,
+					    ldSpanMap,
+					    le16_to_cpu(pDrvRaidMap->ldCount));
 
 	if (le32_to_cpu(pDrvRaidMap->totalSize) != expected_size) {
 		dev_dbg(&instance->pdev->dev, "megasas: map info structure size 0x%x",
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 09c5fe37754c..6650f8c8e9b0 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -1310,7 +1310,7 @@ megasas_sync_pd_seq_num(struct megasas_instance *instance, bool pend) {
 
 	pd_sync = (void *)fusion->pd_seq_sync[(instance->pd_seq_map_id & 1)];
 	pd_seq_h = fusion->pd_seq_phys[(instance->pd_seq_map_id & 1)];
-	pd_seq_map_sz = struct_size(pd_sync, seq, MAX_PHYSICAL_DEVICES - 1);
+	pd_seq_map_sz = struct_size(pd_sync, seq, MAX_PHYSICAL_DEVICES);
 
 	cmd = megasas_get_cmd(instance);
 	if (!cmd) {
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.h b/drivers/scsi/megaraid/megaraid_sas_fusion.h
index ce84f811e5e1..49e9a9048ee7 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.h
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.h
@@ -942,7 +942,7 @@ struct MR_FW_RAID_MAP {
 	u8                  reserved2[7];
 	struct MR_ARRAY_INFO       arMapInfo[MAX_RAIDMAP_ARRAYS];
 	struct MR_DEV_HANDLE_INFO  devHndlInfo[MAX_RAIDMAP_PHYSICAL_DEVICES];
-	struct MR_LD_SPAN_MAP      ldSpanMap[1];
+	struct MR_LD_SPAN_MAP      ldSpanMap[];
 };
 
 struct IO_REQUEST_INFO {
@@ -1053,7 +1053,7 @@ struct MR_FW_RAID_MAP_DYNAMIC {
 	struct MR_RAID_MAP_DESC_TABLE
 			raid_map_desc_table[RAID_MAP_DESC_TYPE_COUNT];
 	/* Variable Size buffer containing all data */
-	u32 raid_map_desc_data[1];
+	u32 raid_map_desc_data[];
 }; /* Dynamicaly sized RAID MAp structure */
 
 #define IEEE_SGE_FLAGS_ADDR_MASK            (0x03)
@@ -1148,7 +1148,7 @@ typedef struct LOG_BLOCK_SPAN_INFO {
 
 struct MR_FW_RAID_MAP_ALL {
 	struct MR_FW_RAID_MAP raidMap;
-	struct MR_LD_SPAN_MAP ldSpanMap[MAX_LOGICAL_DRIVES - 1];
+	struct MR_LD_SPAN_MAP ldSpanMap[MAX_LOGICAL_DRIVES];
 } __attribute__ ((packed));
 
 struct MR_DRV_RAID_MAP {
@@ -1182,7 +1182,7 @@ struct MR_DRV_RAID_MAP {
 		devHndlInfo[MAX_RAIDMAP_PHYSICAL_DEVICES_DYN];
 	u16 ldTgtIdToLd[MAX_LOGICAL_DRIVES_DYN];
 	struct MR_ARRAY_INFO arMapInfo[MAX_API_ARRAYS_DYN];
-	struct MR_LD_SPAN_MAP      ldSpanMap[1];
+	struct MR_LD_SPAN_MAP      ldSpanMap[];
 
 };
 
@@ -1193,7 +1193,7 @@ struct MR_DRV_RAID_MAP {
 struct MR_DRV_RAID_MAP_ALL {
 
 	struct MR_DRV_RAID_MAP raidMap;
-	struct MR_LD_SPAN_MAP ldSpanMap[MAX_LOGICAL_DRIVES_DYN - 1];
+	struct MR_LD_SPAN_MAP ldSpanMap[MAX_LOGICAL_DRIVES_DYN];
 } __packed;
 
 
@@ -1249,7 +1249,7 @@ struct MR_PD_CFG_SEQ {
 struct MR_PD_CFG_SEQ_NUM_SYNC {
 	__le32 size;
 	__le32 count;
-	struct MR_PD_CFG_SEQ seq[1];
+	struct MR_PD_CFG_SEQ seq[];
 } __packed;
 
 /* stream detection */
diff --git a/drivers/scsi/mpi3mr/Makefile b/drivers/scsi/mpi3mr/Makefile
index f5cdbe48c150..ef86ca46646b 100644
--- a/drivers/scsi/mpi3mr/Makefile
+++ b/drivers/scsi/mpi3mr/Makefile
@@ -3,3 +3,4 @@ obj-m += mpi3mr.o
 mpi3mr-y +=  mpi3mr_os.o     \
 		mpi3mr_fw.o \
 		mpi3mr_app.o \
+		mpi3mr_transport.o
diff --git a/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h b/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h
index 4cd9f24e544c..0a2af48915a5 100644
--- a/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h
+++ b/drivers/scsi/mpi3mr/mpi/mpi30_cnfg.h
@@ -1,7 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
- *  Copyright 2017-2021 Broadcom Inc. All rights reserved.
- *
+ *  Copyright 2017-2022 Broadcom Inc. All rights reserved.
  */
 #ifndef MPI30_CNFG_H
 #define MPI30_CNFG_H     1
@@ -100,6 +99,7 @@ struct mpi3_config_page_header {
 #define MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK             (0xf0)
 #define MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT            (4)
 #define MPI3_SAS_NEG_LINK_RATE_PHYSICAL_MASK            (0x0f)
+#define MPI3_SAS_NEG_LINK_RATE_PHYSICAL_SHIFT           (0)
 #define MPI3_SAS_NEG_LINK_RATE_UNKNOWN_LINK_RATE        (0x00)
 #define MPI3_SAS_NEG_LINK_RATE_PHY_DISABLED             (0x01)
 #define MPI3_SAS_NEG_LINK_RATE_NEGOTIATION_FAILED       (0x02)
@@ -135,6 +135,16 @@ struct mpi3_config_page_header {
 #define MPI3_SAS_PHYINFO_PHY_POWER_CONDITION_ACTIVE     (0x00000000)
 #define MPI3_SAS_PHYINFO_PHY_POWER_CONDITION_PARTIAL    (0x08000000)
 #define MPI3_SAS_PHYINFO_PHY_POWER_CONDITION_SLUMBER    (0x10000000)
+#define MPI3_SAS_NEG_LINK_RATE_PHYSICAL_SHIFT                 (0)
+#define MPI3_SAS_PHYINFO_REQUESTED_INSIDE_ZPSDS_CHANGED_MASK  (0x04000000)
+#define MPI3_SAS_PHYINFO_REQUESTED_INSIDE_ZPSDS_CHANGED_SHIFT (26)
+#define MPI3_SAS_PHYINFO_INSIDE_ZPSDS_PERSISTENT_MASK         (0x02000000)
+#define MPI3_SAS_PHYINFO_INSIDE_ZPSDS_PERSISTENT_SHIFT        (25)
+#define MPI3_SAS_PHYINFO_REQUESTED_INSIDE_ZPSDS_MASK          (0x01000000)
+#define MPI3_SAS_PHYINFO_REQUESTED_INSIDE_ZPSDS_SHIFT         (24)
+#define MPI3_SAS_PHYINFO_ZONE_GROUP_PERSISTENT                (0x00400000)
+#define MPI3_SAS_PHYINFO_INSIDE_ZPSDS_WITHIN                  (0x00200000)
+#define MPI3_SAS_PHYINFO_ZONING_ENABLED                       (0x00100000)
 #define MPI3_SAS_PHYINFO_REASON_MASK                    (0x000f0000)
 #define MPI3_SAS_PHYINFO_REASON_UNKNOWN                 (0x00000000)
 #define MPI3_SAS_PHYINFO_REASON_POWER_ON                (0x00010000)
@@ -210,7 +220,7 @@ struct mpi3_man_page0 {
 	u8                                 board_rework_day;
 	u8                                 board_rework_month;
 	__le16                             board_rework_year;
-	__le64                             board_revision;
+	u8                                 board_revision[8];
 	u8                                 e_pack_fru[16];
 	u8                                 product_name[256];
 };
@@ -226,6 +236,15 @@ struct mpi3_man_page1 {
 };
 
 #define MPI3_MAN1_PAGEVERSION                                 (0x00)
+struct mpi3_man_page2 {
+	struct mpi3_config_page_header         header;
+	u8                                 flags;
+	u8                                 reserved09[3];
+	__le32                             reserved0c[3];
+	u8                                 oem_board_tracer_number[32];
+};
+#define MPI3_MAN2_PAGEVERSION                                 (0x00)
+#define MPI3_MAN2_FLAGS_TRACER_PRESENT                        (0x01)
 struct mpi3_man5_phy_entry {
 	__le64     ioc_wwid;
 	__le64     device_name;
@@ -338,6 +357,8 @@ struct mpi3_man7_receptacle_info {
 #define MPI3_MAN7_LOCATION_INTERNAL                        (0x01)
 #define MPI3_MAN7_LOCATION_EXTERNAL                        (0x02)
 #define MPI3_MAN7_LOCATION_VIRTUAL                         (0x03)
+#define MPI3_MAN7_LOCATION_HOST                            (0x04)
+#define MPI3_MAN7_CONNECTOR_TYPE_NO_INFO                   (0x00)
 #define MPI3_MAN7_PEDCLK_ROUTING_MASK                      (0x10)
 #define MPI3_MAN7_PEDCLK_ROUTING_DIRECT                    (0x00)
 #define MPI3_MAN7_PEDCLK_ROUTING_CLOCK_BUFFER              (0x10)
@@ -369,7 +390,8 @@ struct mpi3_man8_phy_info {
 	__le32                             reserved0c;
 };
 
-#define MPI3_MAN8_PHY_INFO_RECEPTACLE_ID_HOST_PHY          (0xff)
+#define MPI3_MAN8_PHY_INFO_RECEPTACLE_ID_NOT_ASSOCIATED    (0xff)
+#define MPI3_MAN8_PHY_INFO_CONNECTOR_LANE_NOT_ASSOCIATED   (0xff)
 #ifndef MPI3_MAN8_PHY_INFO_MAX
 #define MPI3_MAN8_PHY_INFO_MAX                      (1)
 #endif
@@ -536,6 +558,10 @@ struct mpi3_man11_bkplane_spec_non_ubm_format {
 #define MPI3_MAN11_BKPLANE_NON_UBM_FLAGS_GROUP_MASK                    (0xf000)
 #define MPI3_MAN11_BKPLANE_NON_UBM_FLAGS_GROUP_SHIFT                   (12)
 #define MPI3_MAN11_BKPLANE_NON_UBM_FLAGS_REFCLK_POLICY_ALWAYS_ENABLED  (0x0200)
+#define MPI3_MAN11_BKPLANE_NON_UBM_FLAGS_LINKWIDTH_MASK                (0x00c0)
+#define MPI3_MAN11_BKPLANE_NON_UBM_FLAGS_LINKWIDTH_4                   (0x0000)
+#define MPI3_MAN11_BKPLANE_NON_UBM_FLAGS_LINKWIDTH_2                   (0x0040)
+#define MPI3_MAN11_BKPLANE_NON_UBM_FLAGS_LINKWIDTH_1                   (0x0080)
 #define MPI3_MAN11_BKPLANE_NON_UBM_FLAGS_PRESENCE_DETECT_MASK          (0x0030)
 #define MPI3_MAN11_BKPLANE_NON_UBM_FLAGS_PRESENCE_DETECT_GPIO          (0x0000)
 #define MPI3_MAN11_BKPLANE_NON_UBM_FLAGS_PRESENCE_DETECT_REG           (0x0010)
@@ -825,19 +851,16 @@ struct mpi3_man_page21 {
 };
 
 #define MPI3_MAN21_PAGEVERSION                                       (0x00)
-#define MPI3_MAN21_FLAGS_HOST_METADATA_CAPABILITY_MASK               (0x80)
-#define MPI3_MAN21_FLAGS_HOST_METADATA_CAPABILITY_ENABLED            (0x80)
-#define MPI3_MAN21_FLAGS_HOST_METADATA_CAPABILITY_DISABLED           (0x00)
-#define MPI3_MAN21_FLAGS_UNCERTIFIED_DRIVES_MASK                     (0x60)
-#define MPI3_MAN21_FLAGS_UNCERTIFIED_DRIVES_BLOCK                    (0x00)
-#define MPI3_MAN21_FLAGS_UNCERTIFIED_DRIVES_ALLOW                    (0x20)
-#define MPI3_MAN21_FLAGS_UNCERTIFIED_DRIVES_WARN                     (0x40)
-#define MPI3_MAN21_FLAGS_BLOCK_SSD_WR_CACHE_CHANGE_MASK              (0x08)
-#define MPI3_MAN21_FLAGS_BLOCK_SSD_WR_CACHE_CHANGE_ALLOW             (0x00)
-#define MPI3_MAN21_FLAGS_BLOCK_SSD_WR_CACHE_CHANGE_PREVENT           (0x08)
-#define MPI3_MAN21_FLAGS_SES_VPD_ASSOC_MASK                          (0x01)
-#define MPI3_MAN21_FLAGS_SES_VPD_ASSOC_DEFAULT                       (0x00)
-#define MPI3_MAN21_FLAGS_SES_VPD_ASSOC_OEM_SPECIFIC                  (0x01)
+#define MPI3_MAN21_FLAGS_UNCERTIFIED_DRIVES_MASK                     (0x00000060)
+#define MPI3_MAN21_FLAGS_UNCERTIFIED_DRIVES_BLOCK                    (0x00000000)
+#define MPI3_MAN21_FLAGS_UNCERTIFIED_DRIVES_ALLOW                    (0x00000020)
+#define MPI3_MAN21_FLAGS_UNCERTIFIED_DRIVES_WARN                     (0x00000040)
+#define MPI3_MAN21_FLAGS_BLOCK_SSD_WR_CACHE_CHANGE_MASK              (0x00000008)
+#define MPI3_MAN21_FLAGS_BLOCK_SSD_WR_CACHE_CHANGE_ALLOW             (0x00000000)
+#define MPI3_MAN21_FLAGS_BLOCK_SSD_WR_CACHE_CHANGE_PREVENT           (0x00000008)
+#define MPI3_MAN21_FLAGS_SES_VPD_ASSOC_MASK                          (0x00000001)
+#define MPI3_MAN21_FLAGS_SES_VPD_ASSOC_DEFAULT                       (0x00000000)
+#define MPI3_MAN21_FLAGS_SES_VPD_ASSOC_OEM_SPECIFIC                  (0x00000001)
 #ifndef MPI3_MAN_PROD_SPECIFIC_MAX
 #define MPI3_MAN_PROD_SPECIFIC_MAX                      (1)
 #endif
@@ -995,7 +1018,12 @@ struct mpi3_io_unit_page5 {
 #define MPI3_IOUNIT5_DEVICE_SHUTDOWN_SATA_SSD_MASK         (0x000c)
 #define MPI3_IOUNIT5_DEVICE_SHUTDOWN_SATA_SSD_SHIFT        (2)
 #define MPI3_IOUNIT5_DEVICE_SHUTDOWN_SAS_SSD_MASK          (0x0003)
-#define MPI3_IOUNIT5_DEVICE_SHUTDOWN_SAA_SSD_SHIFT         (0)
+#define MPI3_IOUNIT5_DEVICE_SHUTDOWN_SAS_SSD_SHIFT         (0)
+#define MPI3_IOUNIT5_FLAGS_SATAPUIS_MASK                   (0x0c)
+#define MPI3_IOUNIT5_FLAGS_SATAPUIS_NOT_SUPPORTED          (0x00)
+#define MPI3_IOUNIT5_FLAGS_SATAPUIS_OS_CONTROLLED          (0x04)
+#define MPI3_IOUNIT5_FLAGS_SATAPUIS_APP_CONTROLLED         (0x08)
+#define MPI3_IOUNIT5_FLAGS_SATAPUIS_BLOCKED                (0x0c)
 #define MPI3_IOUNIT5_FLAGS_POWER_CAPABLE_SPINUP            (0x02)
 #define MPI3_IOUNIT5_FLAGS_AUTO_PORT_ENABLE                (0x01)
 #define MPI3_IOUNIT5_PHY_SPINUP_GROUP_MASK                 (0x03)
@@ -1027,7 +1055,8 @@ struct mpi3_io_unit_page8 {
 	u8                                 slots_available;
 	u8                                 current_key_encryption_algo;
 	u8                                 key_digest_hash_algo;
-	__le32                             reserved10[2];
+	union mpi3_version_union              current_svn;
+	__le32                             reserved14;
 	__le32                             current_key[128];
 	union mpi3_iounit8_digest             digest[MPI3_IOUNIT8_DIGEST_MAX];
 };
@@ -1036,6 +1065,7 @@ struct mpi3_io_unit_page8 {
 #define MPI3_IOUNIT8_SBMODE_SECURE_DEBUG          (0x04)
 #define MPI3_IOUNIT8_SBMODE_HARD_SECURE           (0x02)
 #define MPI3_IOUNIT8_SBMODE_CONFIG_SECURE         (0x01)
+#define MPI3_IOUNIT8_SBSTATE_SVN_UPDATE_PENDING   (0x04)
 #define MPI3_IOUNIT8_SBSTATE_KEY_UPDATE_PENDING   (0x02)
 #define MPI3_IOUNIT8_SBSTATE_SECURE_BOOT_ENABLED  (0x01)
 struct mpi3_io_unit_page9 {
@@ -1045,9 +1075,14 @@ struct mpi3_io_unit_page9 {
 	__le16                             reserved0e;
 };
 
-#define MPI3_IOUNIT9_PAGEVERSION                  (0x00)
-#define MPI3_IOUNIT9_FLAGS_VDFIRST_ENABLED         (0x01)
-#define MPI3_IOUNIT9_FIRSTDEVICE_UNKNOWN          (0xffff)
+#define MPI3_IOUNIT9_PAGEVERSION                                  (0x00)
+#define MPI3_IOUNIT9_FLAGS_UBM_ENCLOSURE_ORDER_MASK               (0x00000006)
+#define MPI3_IOUNIT9_FLAGS_UBM_ENCLOSURE_ORDER_SHIFT              (1)
+#define MPI3_IOUNIT9_FLAGS_UBM_ENCLOSURE_ORDER_NONE               (0x00000000)
+#define MPI3_IOUNIT9_FLAGS_UBM_ENCLOSURE_ORDER_RECEPTACLE         (0x00000002)
+#define MPI3_IOUNIT9_FLAGS_UBM_ENCLOSURE_ORDER_BACKPLANE_TYPE     (0x00000004)
+#define MPI3_IOUNIT9_FLAGS_VDFIRST_ENABLED                        (0x00000001)
+#define MPI3_IOUNIT9_FIRSTDEVICE_UNKNOWN                          (0xffff)
 struct mpi3_io_unit_page10 {
 	struct mpi3_config_page_header         header;
 	u8                                 flags;
@@ -1090,6 +1125,57 @@ struct mpi3_io_unit_page11 {
 	struct mpi3_iounit11_profile           profile[MPI3_IOUNIT11_PROFILE_MAX];
 };
 #define MPI3_IOUNIT11_PAGEVERSION                  (0x00)
+#ifndef MPI3_IOUNIT12_BUCKET_MAX
+#define MPI3_IOUNIT12_BUCKET_MAX                   (1)
+#endif
+struct mpi3_iounit12_bucket {
+	u8                                 coalescing_depth;
+	u8                                 coalescing_timeout;
+	__le16                             io_count_low_boundary;
+	__le32                             reserved04;
+};
+struct mpi3_io_unit_page12 {
+	struct mpi3_config_page_header         header;
+	__le32                             flags;
+	__le32                             reserved0c[4];
+	u8                                 num_buckets;
+	u8                                 reserved1d[3];
+	struct mpi3_iounit12_bucket            bucket[MPI3_IOUNIT12_BUCKET_MAX];
+};
+#define MPI3_IOUNIT12_PAGEVERSION                  (0x00)
+#define MPI3_IOUNIT12_FLAGS_NUMPASSES_MASK         (0x00000300)
+#define MPI3_IOUNIT12_FLAGS_NUMPASSES_SHIFT        (8)
+#define MPI3_IOUNIT12_FLAGS_NUMPASSES_8            (0x00000000)
+#define MPI3_IOUNIT12_FLAGS_NUMPASSES_16           (0x00000100)
+#define MPI3_IOUNIT12_FLAGS_NUMPASSES_32           (0x00000200)
+#define MPI3_IOUNIT12_FLAGS_NUMPASSES_64           (0x00000300)
+#define MPI3_IOUNIT12_FLAGS_PASSPERIOD_MASK        (0x00000003)
+#define MPI3_IOUNIT12_FLAGS_PASSPERIOD_DISABLED    (0x00000000)
+#define MPI3_IOUNIT12_FLAGS_PASSPERIOD_500US       (0x00000001)
+#define MPI3_IOUNIT12_FLAGS_PASSPERIOD_1MS         (0x00000002)
+#define MPI3_IOUNIT12_FLAGS_PASSPERIOD_2MS         (0x00000003)
+#ifndef MPI3_IOUNIT13_FUNC_MAX
+#define MPI3_IOUNIT13_FUNC_MAX                                     (1)
+#endif
+struct mpi3_iounit13_allowed_function {
+	__le16                             sub_function;
+	u8                                 function_code;
+	u8                                 fuction_flags;
+};
+#define MPI3_IOUNIT13_FUNCTION_FLAGS_ADMIN_BLOCKED                 (0x04)
+#define MPI3_IOUNIT13_FUNCTION_FLAGS_OOB_BLOCKED                   (0x02)
+#define MPI3_IOUNIT13_FUNCTION_FLAGS_CHECK_SUBFUNCTION_ENABLED     (0x01)
+struct mpi3_io_unit_page13 {
+	struct mpi3_config_page_header         header;
+	__le16                             flags;
+	__le16                             reserved0a;
+	u8                                 num_allowed_functions;
+	u8                                 reserved0d[3];
+	struct mpi3_iounit13_allowed_function  allowed_function[MPI3_IOUNIT13_FUNC_MAX];
+};
+#define MPI3_IOUNIT13_PAGEVERSION                                  (0x00)
+#define MPI3_IOUNIT13_FLAGS_ADMIN_BLOCKED                          (0x0002)
+#define MPI3_IOUNIT13_FLAGS_OOB_BLOCKED                            (0x0001)
 struct mpi3_ioc_page0 {
 	struct mpi3_config_page_header         header;
 	__le32                             reserved08;
@@ -1182,6 +1268,7 @@ struct mpi3_driver_page0 {
 	__le32                             reserved18;
 };
 #define MPI3_DRIVER0_PAGEVERSION               (0x00)
+#define MPI3_DRIVER0_BSDOPTS_HEADLESS_MODE_ENABLE           (0x00000008)
 #define MPI3_DRIVER0_BSDOPTS_DIS_HII_CONFIG_UTIL            (0x00000004)
 #define MPI3_DRIVER0_BSDOPTS_REGISTRATION_MASK              (0x00000003)
 #define MPI3_DRIVER0_BSDOPTS_REGISTRATION_IOC_AND_DEVS      (0x00000000)
@@ -1906,19 +1993,30 @@ struct mpi3_pcie_io_unit_page1 {
 };
 
 #define MPI3_PCIEIOUNIT1_PAGEVERSION                                           (0x00)
-#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_LINK_OVERRIDE_DISABLE                   (0x80)
-#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_CLOCK_OVERRIDE_DISABLE                  (0x40)
-#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_CLOCK_OVERRIDE_MODE_MASK                (0x30)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_PERST_OVERRIDE_MASK                     (0xe0000000)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_PERST_OVERRIDE_NONE                     (0x00000000)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_PERST_OVERRIDE_DEASSERT                 (0x20000000)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_PERST_OVERRIDE_ASSERT                   (0x40000000)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_PERST_OVERRIDE_BACKPLANE_ERROR          (0x60000000)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_REFCLK_OVERRIDE_MASK                    (0x1c000000)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_REFCLK_OVERRIDE_NONE                    (0x00000000)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_REFCLK_OVERRIDE_DEASSERT                (0x04000000)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_REFCLK_OVERRIDE_ASSERT                  (0x08000000)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_REFCLK_OVERRIDE_BACKPLANE_ERROR         (0x0c000000)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_LINK_OVERRIDE_DISABLE                   (0x00000080)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_CLOCK_OVERRIDE_DISABLE                  (0x00000040)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_CLOCK_OVERRIDE_MODE_MASK                (0x00000030)
 #define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_CLOCK_OVERRIDE_MODE_SHIFT               (4)
-#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_CLOCK_OVERRIDE_MODE_SRIS_SRNS_DISABLED  (0x00)
-#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_CLOCK_OVERRIDE_MODE_SRIS_ENABLED        (0x10)
-#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_CLOCK_OVERRIDE_MODE_SRNS_ENABLED        (0x20)
-#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_LINK_RATE_OVERRIDE_MASK                 (0x0f)
-#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_LINK_RATE_OVERRIDE_MAX_2_5              (0x02)
-#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_LINK_RATE_OVERRIDE_MAX_5_0              (0x03)
-#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_LINK_RATE_OVERRIDE_MAX_8_0              (0x04)
-#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_LINK_RATE_OVERRIDE_MAX_16_0             (0x05)
-#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_LINK_RATE_OVERRIDE_MAX_32_0             (0x06)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_CLOCK_OVERRIDE_MODE_SRIS_SRNS_DISABLED  (0x00000000)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_CLOCK_OVERRIDE_MODE_SRIS_ENABLED        (0x00000010)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_CLOCK_OVERRIDE_MODE_SRNS_ENABLED        (0x00000020)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_LINK_RATE_OVERRIDE_MASK                 (0x0000000f)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_LINK_RATE_OVERRIDE_USE_BACKPLANE        (0x00000000)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_LINK_RATE_OVERRIDE_MAX_2_5              (0x00000002)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_LINK_RATE_OVERRIDE_MAX_5_0              (0x00000003)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_LINK_RATE_OVERRIDE_MAX_8_0              (0x00000004)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_LINK_RATE_OVERRIDE_MAX_16_0             (0x00000005)
+#define MPI3_PCIEIOUNIT1_CONTROL_FLAGS_LINK_RATE_OVERRIDE_MAX_32_0             (0x00000006)
 #define MPI3_PCIEIOUNIT1_ASPM_SWITCH_MASK                                 (0x0c)
 #define MPI3_PCIEIOUNIT1_ASPM_SWITCH_SHIFT                                   (2)
 #define MPI3_PCIEIOUNIT1_ASPM_DIRECT_MASK                                 (0x03)
@@ -2169,10 +2267,7 @@ struct mpi3_device0_vd_format {
 #define MPI3_DEVICE0_VD_DEVICE_INFO_SATA                    (0x0002)
 #define MPI3_DEVICE0_VD_DEVICE_INFO_SAS                     (0x0001)
 #define MPI3_DEVICE0_VD_FLAGS_IO_THROTTLE_GROUP_QD_MASK     (0xf000)
-#define MPI3_DEVICE0_VD_FLAGS_METADATA_MODE_MASK            (0x0003)
-#define MPI3_DEVICE0_VD_FLAGS_METADATA_MODE_NONE            (0x0000)
-#define MPI3_DEVICE0_VD_FLAGS_METADATA_MODE_HOST            (0x0001)
-#define MPI3_DEVICE0_VD_FLAGS_METADATA_MODE_IOC             (0x0002)
+#define MPI3_DEVICE0_VD_FLAGS_IO_THROTTLE_GROUP_QD_SHIFT    (12)
 union mpi3_device0_dev_spec_format {
 	struct mpi3_device0_sas_sata_format        sas_sata_format;
 	struct mpi3_device0_pcie_format            pcie_format;
diff --git a/drivers/scsi/mpi3mr/mpi/mpi30_image.h b/drivers/scsi/mpi3mr/mpi/mpi30_image.h
index c29b87de8e18..64c58815988a 100644
--- a/drivers/scsi/mpi3mr/mpi/mpi30_image.h
+++ b/drivers/scsi/mpi3mr/mpi/mpi30_image.h
@@ -1,7 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
- *  Copyright 2018-2021 Broadcom Inc. All rights reserved.
- *
+ *  Copyright 2018-2022 Broadcom Inc. All rights reserved.
  */
 #ifndef MPI30_IMAGE_H
 #define MPI30_IMAGE_H     1
@@ -63,6 +62,9 @@ struct mpi3_component_image_header {
 #define MPI3_IMAGE_HEADER_SIGNATURE1_PBLP                     (0x504c4250)
 #define MPI3_IMAGE_HEADER_SIGNATURE1_MANIFEST                 (0x464e414d)
 #define MPI3_IMAGE_HEADER_SIGNATURE1_OEM                      (0x204d454f)
+#define MPI3_IMAGE_HEADER_SIGNATURE1_RMC                      (0x20434d52)
+#define MPI3_IMAGE_HEADER_SIGNATURE1_SMM                      (0x204d4d53)
+#define MPI3_IMAGE_HEADER_SIGNATURE1_PSW                      (0x20575350)
 #define MPI3_IMAGE_HEADER_SIGNATURE2_VALUE                    (0x50584546)
 #define MPI3_IMAGE_HEADER_FLAGS_DEVICE_KEY_BASIS_MASK         (0x00000030)
 #define MPI3_IMAGE_HEADER_FLAGS_DEVICE_KEY_BASIS_CDI          (0x00000000)
diff --git a/drivers/scsi/mpi3mr/mpi/mpi30_init.h b/drivers/scsi/mpi3mr/mpi/mpi30_init.h
index aac11c58cca9..3c03610ecfa6 100644
--- a/drivers/scsi/mpi3mr/mpi/mpi30_init.h
+++ b/drivers/scsi/mpi3mr/mpi/mpi30_init.h
@@ -1,13 +1,12 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
- *  Copyright 2016-2021 Broadcom Inc. All rights reserved.
- *
+ *  Copyright 2016-2022 Broadcom Inc. All rights reserved.
  */
 #ifndef MPI30_INIT_H
 #define MPI30_INIT_H     1
 struct mpi3_scsi_io_cdb_eedp32 {
 	u8                 cdb[20];
-	__be32          primary_reference_tag;
+	__be32             primary_reference_tag;
 	__le16             primary_application_tag;
 	__le16             primary_application_tag_mask;
 	__le32             transfer_length;
diff --git a/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h b/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h
index 214e4c65e576..1c6c6730df5c 100644
--- a/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h
+++ b/drivers/scsi/mpi3mr/mpi/mpi30_ioc.h
@@ -1,7 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
- *  Copyright 2016-2021 Broadcom Inc. All rights reserved.
- *
+ *  Copyright 2016-2022 Broadcom Inc. All rights reserved.
  */
 #ifndef MPI30_IOC_H
 #define MPI30_IOC_H     1
@@ -158,6 +157,7 @@ struct mpi3_ioc_facts_data {
 #define MPI3_IOCFACTS_FLAGS_PERSONALITY_EHBA                  (0x00000000)
 #define MPI3_IOCFACTS_FLAGS_PERSONALITY_RAID_DDR              (0x00000002)
 #define MPI3_IOCFACTS_IO_THROTTLE_DATA_LENGTH_NOT_REQUIRED    (0x0000)
+#define MPI3_IOCFACTS_MAX_IO_THROTTLE_GROUP_NOT_REQUIRED      (0x0000)
 struct mpi3_mgmt_passthrough_request {
 	__le16                 host_tag;
 	u8                     ioc_use_only02;
@@ -637,6 +637,23 @@ struct mpi3_event_data_diag_buffer_status_change {
 #define MPI3_EVENT_DIAG_BUFFER_STATUS_CHANGE_RC_RELEASED             (0x01)
 #define MPI3_EVENT_DIAG_BUFFER_STATUS_CHANGE_RC_PAUSED               (0x02)
 #define MPI3_EVENT_DIAG_BUFFER_STATUS_CHANGE_RC_RESUMED              (0x03)
+#define MPI3_PEL_LOCALE_FLAGS_NON_BLOCKING_BOOT_EVENT   (0x0200)
+#define MPI3_PEL_LOCALE_FLAGS_BLOCKING_BOOT_EVENT       (0x0100)
+#define MPI3_PEL_LOCALE_FLAGS_PCIE                      (0x0080)
+#define MPI3_PEL_LOCALE_FLAGS_CONFIGURATION             (0x0040)
+#define MPI3_PEL_LOCALE_FLAGS_CONTROLER                 (0x0020)
+#define MPI3_PEL_LOCALE_FLAGS_SAS                       (0x0010)
+#define MPI3_PEL_LOCALE_FLAGS_EPACK                     (0x0008)
+#define MPI3_PEL_LOCALE_FLAGS_ENCLOSURE                 (0x0004)
+#define MPI3_PEL_LOCALE_FLAGS_PD                        (0x0002)
+#define MPI3_PEL_LOCALE_FLAGS_VD                        (0x0001)
+#define MPI3_PEL_CLASS_DEBUG                            (0x00)
+#define MPI3_PEL_CLASS_PROGRESS                         (0x01)
+#define MPI3_PEL_CLASS_INFORMATIONAL                    (0x02)
+#define MPI3_PEL_CLASS_WARNING                          (0x03)
+#define MPI3_PEL_CLASS_CRITICAL                         (0x04)
+#define MPI3_PEL_CLASS_FATAL                            (0x05)
+#define MPI3_PEL_CLASS_FAULT                            (0x06)
 #define MPI3_PEL_CLEARTYPE_CLEAR                        (0x00)
 #define MPI3_PEL_WAITTIME_INFINITE_WAIT                 (0x00)
 #define MPI3_PEL_ACTION_GET_SEQNUM                      (0x01)
@@ -924,6 +941,7 @@ struct mpi3_ci_download_reply {
 };
 
 #define MPI3_CI_DOWNLOAD_FLAGS_DOWNLOAD_IN_PROGRESS                  (0x80)
+#define MPI3_CI_DOWNLOAD_FLAGS_ACTIVATION_FAILURE                    (0x40)
 #define MPI3_CI_DOWNLOAD_FLAGS_OFFLINE_ACTIVATION_REQUIRED           (0x20)
 #define MPI3_CI_DOWNLOAD_FLAGS_KEY_UPDATE_PENDING                    (0x10)
 #define MPI3_CI_DOWNLOAD_FLAGS_ACTIVATION_STATUS_MASK                (0x0e)
diff --git a/drivers/scsi/mpi3mr/mpi/mpi30_pci.h b/drivers/scsi/mpi3mr/mpi/mpi30_pci.h
index 901dbd788940..b7a5df01120d 100644
--- a/drivers/scsi/mpi3mr/mpi/mpi30_pci.h
+++ b/drivers/scsi/mpi3mr/mpi/mpi30_pci.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
- *  Copyright 2016-2021 Broadcom Inc. All rights reserved.
+ *  Copyright 2016-2022 Broadcom Inc. All rights reserved.
  *
  */
 #ifndef MPI30_PCI_H
diff --git a/drivers/scsi/mpi3mr/mpi/mpi30_sas.h b/drivers/scsi/mpi3mr/mpi/mpi30_sas.h
index 298d895e374b..e587f77ccd68 100644
--- a/drivers/scsi/mpi3mr/mpi/mpi30_sas.h
+++ b/drivers/scsi/mpi3mr/mpi/mpi30_sas.h
@@ -1,7 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
- *  Copyright 2016-2021 Broadcom Inc. All rights reserved.
- *
+ *  Copyright 2016-2022 Broadcom Inc. All rights reserved.
  */
 #ifndef MPI30_SAS_H
 #define MPI30_SAS_H     1
diff --git a/drivers/scsi/mpi3mr/mpi/mpi30_transport.h b/drivers/scsi/mpi3mr/mpi/mpi30_transport.h
index ba05ea57af25..9b76b9632751 100644
--- a/drivers/scsi/mpi3mr/mpi/mpi30_transport.h
+++ b/drivers/scsi/mpi3mr/mpi/mpi30_transport.h
@@ -1,7 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
- *  Copyright 2016-2021 Broadcom Inc. All rights reserved.
- *
+ *  Copyright 2016-2022 Broadcom Inc. All rights reserved.
  */
 #ifndef MPI30_TRANSPORT_H
 #define MPI30_TRANSPORT_H     1
@@ -19,8 +18,8 @@ union mpi3_version_union {
 
 #define MPI3_VERSION_MAJOR                                              (3)
 #define MPI3_VERSION_MINOR                                              (0)
-#define MPI3_VERSION_UNIT                                               (23)
-#define MPI3_VERSION_DEV                                                (1)
+#define MPI3_VERSION_UNIT                                               (26)
+#define MPI3_VERSION_DEV                                                (0)
 #define MPI3_DEVHANDLE_INVALID                                          (0xffff)
 struct mpi3_sysif_oper_queue_indexes {
 	__le16         producer_index;
@@ -212,6 +211,7 @@ struct mpi3_default_reply_descriptor {
 #define MPI3_REPLY_DESCRIPT_FLAGS_TYPE_SUCCESS                     (0x1000)
 #define MPI3_REPLY_DESCRIPT_FLAGS_TYPE_TARGET_COMMAND_BUFFER       (0x2000)
 #define MPI3_REPLY_DESCRIPT_FLAGS_TYPE_STATUS                      (0x3000)
+#define MPI3_REPLY_DESCRIPT_REQUEST_QUEUE_ID_INVALID               (0xffff)
 struct mpi3_address_reply_descriptor {
 	__le64             reply_frame_address;
 	__le16             request_queue_ci;
diff --git a/drivers/scsi/mpi3mr/mpi3mr.h b/drivers/scsi/mpi3mr/mpi3mr.h
index 0935b2e80662..def4c5e15cd8 100644
--- a/drivers/scsi/mpi3mr/mpi3mr.h
+++ b/drivers/scsi/mpi3mr/mpi3mr.h
@@ -39,6 +39,7 @@
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_tcq.h>
 #include <uapi/scsi/scsi_bsg_mpi3mr.h>
+#include <scsi/scsi_transport_sas.h>
 
 #include "mpi/mpi30_transport.h"
 #include "mpi/mpi30_cnfg.h"
@@ -55,8 +56,8 @@ extern struct list_head mrioc_list;
 extern int prot_mask;
 extern atomic64_t event_counter;
 
-#define MPI3MR_DRIVER_VERSION	"8.0.0.69.0"
-#define MPI3MR_DRIVER_RELDATE	"16-March-2022"
+#define MPI3MR_DRIVER_VERSION	"8.2.0.3.0"
+#define MPI3MR_DRIVER_RELDATE	"08-September-2022"
 
 #define MPI3MR_DRIVER_NAME	"mpi3mr"
 #define MPI3MR_DRIVER_LICENSE	"GPL"
@@ -97,9 +98,11 @@ extern atomic64_t event_counter;
 #define MPI3MR_HOSTTAG_PEL_ABORT	3
 #define MPI3MR_HOSTTAG_PEL_WAIT		4
 #define MPI3MR_HOSTTAG_BLK_TMS		5
+#define MPI3MR_HOSTTAG_CFG_CMDS		6
+#define MPI3MR_HOSTTAG_TRANSPORT_CMDS	7
 
 #define MPI3MR_NUM_DEVRMCMD		16
-#define MPI3MR_HOSTTAG_DEVRMCMD_MIN	(MPI3MR_HOSTTAG_BLK_TMS + 1)
+#define MPI3MR_HOSTTAG_DEVRMCMD_MIN	(MPI3MR_HOSTTAG_TRANSPORT_CMDS + 1)
 #define MPI3MR_HOSTTAG_DEVRMCMD_MAX	(MPI3MR_HOSTTAG_DEVRMCMD_MIN + \
 						MPI3MR_NUM_DEVRMCMD - 1)
 
@@ -115,6 +118,7 @@ extern atomic64_t event_counter;
 /* command/controller interaction timeout definitions in seconds */
 #define MPI3MR_INTADMCMD_TIMEOUT		60
 #define MPI3MR_PORTENABLE_TIMEOUT		300
+#define MPI3MR_PORTENABLE_POLL_INTERVAL		5
 #define MPI3MR_ABORTTM_TIMEOUT			60
 #define MPI3MR_RESETTM_TIMEOUT			60
 #define MPI3MR_RESET_HOST_IOWAIT_TIMEOUT	5
@@ -126,6 +130,10 @@ extern atomic64_t event_counter;
 
 #define MPI3MR_WATCHDOG_INTERVAL		1000 /* in milli seconds */
 
+#define MPI3MR_DEFAULT_CFG_PAGE_SZ		1024 /* in bytes */
+
+#define MPI3MR_RESET_TOPOLOGY_SETTLE_TIME	10
+
 #define MPI3MR_SCMD_TIMEOUT    (60 * HZ)
 #define MPI3MR_EH_SCMD_TIMEOUT (60 * HZ)
 
@@ -274,6 +282,8 @@ enum mpi3mr_reset_reason {
 	MPI3MR_RESET_FROM_SYSFS = 23,
 	MPI3MR_RESET_FROM_SYSFS_TIMEOUT = 24,
 	MPI3MR_RESET_FROM_FIRMWARE = 27,
+	MPI3MR_RESET_FROM_CFG_REQ_TIMEOUT = 29,
+	MPI3MR_RESET_FROM_SAS_TRANSPORT_TIMEOUT = 30,
 };
 
 /* Queue type definitions */
@@ -421,12 +431,14 @@ struct op_reply_qinfo {
  * struct mpi3mr_intr_info -  Interrupt cookie information
  *
  * @mrioc: Adapter instance reference
+ * @os_irq: irq number
  * @msix_index: MSIx index
  * @op_reply_q: Associated operational reply queue
  * @name: Dev name for the irq claiming device
  */
 struct mpi3mr_intr_info {
 	struct mpi3mr_ioc *mrioc;
+	int os_irq;
 	u16 msix_index;
 	struct op_reply_qinfo *op_reply_q;
 	char name[MPI3MR_NAME_LENGTH];
@@ -457,16 +469,138 @@ struct mpi3mr_throttle_group_info {
 	atomic_t pend_large_data_sz;
 };
 
+/* HBA port flags */
+#define MPI3MR_HBA_PORT_FLAG_DIRTY	0x01
+
+/**
+ * struct mpi3mr_hba_port - HBA's port information
+ * @port_id: Port number
+ * @flags: HBA port flags
+ */
+struct mpi3mr_hba_port {
+	struct list_head list;
+	u8 port_id;
+	u8 flags;
+};
+
+/**
+ * struct mpi3mr_sas_port - Internal SAS port information
+ * @port_list: List of ports belonging to a SAS node
+ * @num_phys: Number of phys associated with port
+ * @marked_responding: used while refresing the sas ports
+ * @lowest_phy: lowest phy ID of current sas port
+ * @phy_mask: phy_mask of current sas port
+ * @hba_port: HBA port entry
+ * @remote_identify: Attached device identification
+ * @rphy: SAS transport layer rphy object
+ * @port: SAS transport layer port object
+ * @phy_list: mpi3mr_sas_phy objects belonging to this port
+ */
+struct mpi3mr_sas_port {
+	struct list_head port_list;
+	u8 num_phys;
+	u8 marked_responding;
+	int lowest_phy;
+	u32 phy_mask;
+	struct mpi3mr_hba_port *hba_port;
+	struct sas_identify remote_identify;
+	struct sas_rphy *rphy;
+	struct sas_port *port;
+	struct list_head phy_list;
+};
+
+/**
+ * struct mpi3mr_sas_phy - Internal SAS Phy information
+ * @port_siblings: List of phys belonging to a port
+ * @identify: Phy identification
+ * @remote_identify: Attached device identification
+ * @phy: SAS transport layer Phy object
+ * @phy_id: Unique phy id within a port
+ * @handle: Firmware device handle for this phy
+ * @attached_handle: Firmware device handle for attached device
+ * @phy_belongs_to_port: Flag to indicate phy belongs to port
+   @hba_port: HBA port entry
+ */
+struct mpi3mr_sas_phy {
+	struct list_head port_siblings;
+	struct sas_identify identify;
+	struct sas_identify remote_identify;
+	struct sas_phy *phy;
+	u8 phy_id;
+	u16 handle;
+	u16 attached_handle;
+	u8 phy_belongs_to_port;
+	struct mpi3mr_hba_port *hba_port;
+};
+
+/**
+ * struct mpi3mr_sas_node - SAS host/expander information
+ * @list: List of sas nodes in a controller
+ * @parent_dev: Parent device class
+ * @num_phys: Number phys belonging to sas_node
+ * @sas_address: SAS address of sas_node
+ * @handle: Firmware device handle for this sas_host/expander
+ * @sas_address_parent: SAS address of parent expander or host
+ * @enclosure_handle: Firmware handle of enclosure of this node
+ * @device_info: Capabilities of this sas_host/expander
+ * @non_responding: used to refresh the expander devices during reset
+ * @host_node: Flag to indicate this is a host_node
+ * @hba_port: HBA port entry
+ * @phy: A list of phys that make up this sas_host/expander
+ * @sas_port_list: List of internal ports of this node
+ * @rphy: sas_rphy object of this expander node
+ */
+struct mpi3mr_sas_node {
+	struct list_head list;
+	struct device *parent_dev;
+	u8 num_phys;
+	u64 sas_address;
+	u16 handle;
+	u64 sas_address_parent;
+	u16 enclosure_handle;
+	u64 enclosure_logical_id;
+	u8 non_responding;
+	u8 host_node;
+	struct mpi3mr_hba_port *hba_port;
+	struct mpi3mr_sas_phy *phy;
+	struct list_head sas_port_list;
+	struct sas_rphy *rphy;
+};
+
+/**
+ * struct mpi3mr_enclosure_node - enclosure information
+ * @list: List of enclosures
+ * @pg0: Enclosure page 0;
+ */
+struct mpi3mr_enclosure_node {
+	struct list_head list;
+	struct mpi3_enclosure_page0 pg0;
+};
+
 /**
  * struct tgt_dev_sas_sata - SAS/SATA device specific
  * information cached from firmware given data
  *
  * @sas_address: World wide unique SAS address
+ * @sas_address_parent: Sas address of parent expander or host
  * @dev_info: Device information bits
+ * @phy_id: Phy identifier provided in device page 0
+ * @attached_phy_id: Attached phy identifier provided in device page 0
+ * @sas_transport_attached: Is this device exposed to transport
+ * @pend_sas_rphy_add: Flag to check device is in process of add
+ * @hba_port: HBA port entry
+ * @rphy: SAS transport layer rphy object
  */
 struct tgt_dev_sas_sata {
 	u64 sas_address;
+	u64 sas_address_parent;
 	u16 dev_info;
+	u8 phy_id;
+	u8 attached_phy_id;
+	u8 sas_transport_attached;
+	u8 pend_sas_rphy_add;
+	struct mpi3mr_hba_port *hba_port;
+	struct sas_rphy *rphy;
 };
 
 /**
@@ -531,12 +665,16 @@ union _form_spec_inf {
  * @slot: Slot number
  * @encl_handle: FW enclosure handle
  * @perst_id: FW assigned Persistent ID
+ * @devpg0_flag: Device Page0 flag
  * @dev_type: SAS/SATA/PCIE device type
  * @is_hidden: Should be exposed to upper layers or not
  * @host_exposed: Already exposed to host or not
+ * @io_unit_port: IO Unit port ID
+ * @non_stl: Is this device not to be attached with SAS TL
  * @io_throttle_enabled: I/O throttling needed or not
  * @q_depth: Device specific Queue Depth
  * @wwid: World wide ID
+ * @enclosure_logical_id: Enclosure logical identifier
  * @dev_spec: Device type specific information
  * @ref_count: Reference count
  */
@@ -548,12 +686,16 @@ struct mpi3mr_tgt_dev {
 	u16 slot;
 	u16 encl_handle;
 	u16 perst_id;
+	u16 devpg0_flag;
 	u8 dev_type;
 	u8 is_hidden;
 	u8 host_exposed;
+	u8 io_unit_port;
+	u8 non_stl;
 	u8 io_throttle_enabled;
 	u16 q_depth;
 	u64 wwid;
+	u64 enclosure_logical_id;
 	union _form_spec_inf dev_spec;
 	struct kref ref_count;
 };
@@ -679,6 +821,21 @@ struct mpi3mr_drv_cmd {
 	    struct mpi3mr_drv_cmd *drv_cmd);
 };
 
+/**
+ * struct dma_memory_desc - memory descriptor structure to store
+ * virtual address, dma address and size for any generic dma
+ * memory allocations in the driver.
+ *
+ * @size: buffer size
+ * @addr: virtual address
+ * @dma_addr: dma address
+ */
+struct dma_memory_desc {
+	u32 size;
+	void *addr;
+	dma_addr_t dma_addr;
+};
+
 
 /**
  * struct chain_element - memory descriptor structure to store
@@ -756,6 +913,7 @@ struct scmd_priv {
  * @num_op_reply_q: Number of operational reply queues
  * @op_reply_qinfo: Operational reply queue info pointer
  * @init_cmds: Command tracker for initialization commands
+ * @cfg_cmds: Command tracker for configuration requests
  * @facts: Cached IOC facts data
  * @op_reply_desc_sz: Operational reply descriptor size
  * @num_reply_bufs: Number of reply buffers allocated
@@ -792,6 +950,7 @@ struct scmd_priv {
  * @scan_started: Async scan started
  * @scan_failed: Asycn scan failed
  * @stop_drv_processing: Stop all command processing
+ * @device_refresh_on: Don't process the events until devices are refreshed
  * @max_host_ios: Maximum host I/O count
  * @chain_buf_count: Chain buffer count
  * @chain_buf_pool: Chain buffer pool
@@ -854,6 +1013,17 @@ struct scmd_priv {
  * @io_throttle_low: I/O size to stop throttle in 512b blocks
  * @num_io_throttle_group: Maximum number of throttle groups
  * @throttle_groups: Pointer to throttle group info structures
+ * @cfg_page: Default memory for configuration pages
+ * @cfg_page_dma: Configuration page DMA address
+ * @cfg_page_sz: Default configuration page memory size
+ * @sas_transport_enabled: SAS transport enabled or not
+ * @scsi_device_channel: Channel ID for SCSI devices
+ * @transport_cmds: Command tracker for SAS transport commands
+ * @sas_hba: SAS node for the controller
+ * @sas_expander_list: SAS node list of expanders
+ * @sas_node_lock: Lock to protect SAS node list
+ * @hba_port_table_list: List of HBA Ports
+ * @enclosure_list: List of Enclosure objects
  */
 struct mpi3mr_ioc {
 	struct list_head list;
@@ -904,6 +1074,7 @@ struct mpi3mr_ioc {
 	struct op_reply_qinfo *op_reply_qinfo;
 
 	struct mpi3mr_drv_cmd init_cmds;
+	struct mpi3mr_drv_cmd cfg_cmds;
 	struct mpi3mr_ioc_facts facts;
 	u16 op_reply_desc_sz;
 
@@ -948,6 +1119,7 @@ struct mpi3mr_ioc {
 	u8 scan_started;
 	u16 scan_failed;
 	u8 stop_drv_processing;
+	u8 device_refresh_on;
 
 	u16 max_host_ios;
 	spinlock_t tgtdev_lock;
@@ -1025,6 +1197,19 @@ struct mpi3mr_ioc {
 	u32 io_throttle_low;
 	u16 num_io_throttle_group;
 	struct mpi3mr_throttle_group_info *throttle_groups;
+
+	void *cfg_page;
+	dma_addr_t cfg_page_dma;
+	u16 cfg_page_sz;
+
+	u8 sas_transport_enabled;
+	u8 scsi_device_channel;
+	struct mpi3mr_drv_cmd transport_cmds;
+	struct mpi3mr_sas_node sas_hba;
+	struct list_head sas_expander_list;
+	spinlock_t sas_node_lock;
+	struct list_head hba_port_table_list;
+	struct list_head enclosure_list;
 };
 
 /**
@@ -1149,6 +1334,67 @@ int mpi3mr_pel_get_seqnum_post(struct mpi3mr_ioc *mrioc,
 	struct mpi3mr_drv_cmd *drv_cmd);
 void mpi3mr_app_save_logdata(struct mpi3mr_ioc *mrioc, char *event_data,
 	u16 event_data_size);
+struct mpi3mr_enclosure_node *mpi3mr_enclosure_find_by_handle(
+	struct mpi3mr_ioc *mrioc, u16 handle);
 extern const struct attribute_group *mpi3mr_host_groups[];
 extern const struct attribute_group *mpi3mr_dev_groups[];
+
+extern struct sas_function_template mpi3mr_transport_functions;
+extern struct scsi_transport_template *mpi3mr_transport_template;
+
+int mpi3mr_cfg_get_dev_pg0(struct mpi3mr_ioc *mrioc, u16 *ioc_status,
+	struct mpi3_device_page0 *dev_pg0, u16 pg_sz, u32 form, u32 form_spec);
+int mpi3mr_cfg_get_sas_phy_pg0(struct mpi3mr_ioc *mrioc, u16 *ioc_status,
+	struct mpi3_sas_phy_page0 *phy_pg0, u16 pg_sz, u32 form,
+	u32 form_spec);
+int mpi3mr_cfg_get_sas_phy_pg1(struct mpi3mr_ioc *mrioc, u16 *ioc_status,
+	struct mpi3_sas_phy_page1 *phy_pg1, u16 pg_sz, u32 form,
+	u32 form_spec);
+int mpi3mr_cfg_get_sas_exp_pg0(struct mpi3mr_ioc *mrioc, u16 *ioc_status,
+	struct mpi3_sas_expander_page0 *exp_pg0, u16 pg_sz, u32 form,
+	u32 form_spec);
+int mpi3mr_cfg_get_sas_exp_pg1(struct mpi3mr_ioc *mrioc, u16 *ioc_status,
+	struct mpi3_sas_expander_page1 *exp_pg1, u16 pg_sz, u32 form,
+	u32 form_spec);
+int mpi3mr_cfg_get_enclosure_pg0(struct mpi3mr_ioc *mrioc, u16 *ioc_status,
+	struct mpi3_enclosure_page0 *encl_pg0, u16 pg_sz, u32 form,
+	u32 form_spec);
+int mpi3mr_cfg_get_sas_io_unit_pg0(struct mpi3mr_ioc *mrioc,
+	struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0, u16 pg_sz);
+int mpi3mr_cfg_get_sas_io_unit_pg1(struct mpi3mr_ioc *mrioc,
+	struct mpi3_sas_io_unit_page1 *sas_io_unit_pg1, u16 pg_sz);
+int mpi3mr_cfg_set_sas_io_unit_pg1(struct mpi3mr_ioc *mrioc,
+	struct mpi3_sas_io_unit_page1 *sas_io_unit_pg1, u16 pg_sz);
+int mpi3mr_cfg_get_driver_pg1(struct mpi3mr_ioc *mrioc,
+	struct mpi3_driver_page1 *driver_pg1, u16 pg_sz);
+
+u8 mpi3mr_is_expander_device(u16 device_info);
+int mpi3mr_expander_add(struct mpi3mr_ioc *mrioc, u16 handle);
+void mpi3mr_expander_remove(struct mpi3mr_ioc *mrioc, u64 sas_address,
+	struct mpi3mr_hba_port *hba_port);
+struct mpi3mr_sas_node *__mpi3mr_expander_find_by_handle(struct mpi3mr_ioc
+	*mrioc, u16 handle);
+struct mpi3mr_hba_port *mpi3mr_get_hba_port_by_id(struct mpi3mr_ioc *mrioc,
+	u8 port_id);
+void mpi3mr_sas_host_refresh(struct mpi3mr_ioc *mrioc);
+void mpi3mr_sas_host_add(struct mpi3mr_ioc *mrioc);
+void mpi3mr_update_links(struct mpi3mr_ioc *mrioc,
+	u64 sas_address_parent, u16 handle, u8 phy_number, u8 link_rate,
+	struct mpi3mr_hba_port *hba_port);
+void mpi3mr_remove_tgtdev_from_host(struct mpi3mr_ioc *mrioc,
+	struct mpi3mr_tgt_dev *tgtdev);
+int mpi3mr_report_tgtdev_to_sas_transport(struct mpi3mr_ioc *mrioc,
+	struct mpi3mr_tgt_dev *tgtdev);
+void mpi3mr_remove_tgtdev_from_sas_transport(struct mpi3mr_ioc *mrioc,
+	struct mpi3mr_tgt_dev *tgtdev);
+struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_by_addr_and_rphy(
+	struct mpi3mr_ioc *mrioc, u64 sas_address, struct sas_rphy *rphy);
+void mpi3mr_print_device_event_notice(struct mpi3mr_ioc *mrioc,
+	bool device_add);
+void mpi3mr_refresh_sas_ports(struct mpi3mr_ioc *mrioc);
+void mpi3mr_refresh_expanders(struct mpi3mr_ioc *mrioc);
+void mpi3mr_add_event_wait_for_device_refresh(struct mpi3mr_ioc *mrioc);
+void mpi3mr_flush_drv_cmds(struct mpi3mr_ioc *mrioc);
+void mpi3mr_flush_cmds_for_unrecovered_controller(struct mpi3mr_ioc *mrioc);
+void mpi3mr_free_enclosure_list(struct mpi3mr_ioc *mrioc);
 #endif /*MPI3MR_H_INCLUDED*/
diff --git a/drivers/scsi/mpi3mr/mpi3mr_debug.h b/drivers/scsi/mpi3mr/mpi3mr_debug.h
index 2464c400a5a4..ee6edd8322e6 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_debug.h
+++ b/drivers/scsi/mpi3mr/mpi3mr_debug.h
@@ -23,9 +23,13 @@
 #define MPI3_DEBUG_RESET		0x00000020
 #define MPI3_DEBUG_SCSI_ERROR		0x00000040
 #define MPI3_DEBUG_REPLY		0x00000080
+#define MPI3_DEBUG_CFG_ERROR		0x00000100
+#define MPI3_DEBUG_TRANSPORT_ERROR	0x00000200
 #define MPI3_DEBUG_BSG_ERROR		0x00008000
 #define MPI3_DEBUG_BSG_INFO		0x00010000
 #define MPI3_DEBUG_SCSI_INFO		0x00020000
+#define MPI3_DEBUG_CFG_INFO		0x00040000
+#define MPI3_DEBUG_TRANSPORT_INFO	0x00080000
 #define MPI3_DEBUG			0x01000000
 #define MPI3_DEBUG_SG			0x02000000
 
@@ -122,6 +126,29 @@
 			pr_info("%s: " fmt, (ioc)->name, ##__VA_ARGS__); \
 	} while (0)
 
+#define dprint_cfg_info(ioc, fmt, ...) \
+	do { \
+		if (ioc->logging_level & MPI3_DEBUG_CFG_INFO) \
+			pr_info("%s: " fmt, (ioc)->name, ##__VA_ARGS__); \
+	} while (0)
+
+#define dprint_cfg_err(ioc, fmt, ...) \
+	do { \
+		if (ioc->logging_level & MPI3_DEBUG_CFG_ERROR) \
+			pr_info("%s: " fmt, (ioc)->name, ##__VA_ARGS__); \
+	} while (0)
+#define dprint_transport_info(ioc, fmt, ...) \
+	do { \
+		if (ioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO) \
+			pr_info("%s: " fmt, (ioc)->name, ##__VA_ARGS__); \
+	} while (0)
+
+#define dprint_transport_err(ioc, fmt, ...) \
+	do { \
+		if (ioc->logging_level & MPI3_DEBUG_TRANSPORT_ERROR) \
+			pr_info("%s: " fmt, (ioc)->name, ##__VA_ARGS__); \
+	} while (0)
+
 #endif /* MPT3SAS_DEBUG_H_INCLUDED */
 
 /**
diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c
index 0866dfd43318..0c4aabaefdcc 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_fw.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c
@@ -244,6 +244,9 @@ static void mpi3mr_print_event_data(struct mpi3mr_ioc *mrioc,
 	case MPI3_EVENT_ENCL_DEVICE_STATUS_CHANGE:
 		desc = "Enclosure Device Status Change";
 		break;
+	case MPI3_EVENT_ENCL_DEVICE_ADDED:
+		desc = "Enclosure Added";
+		break;
 	case MPI3_EVENT_HARD_RESET_RECEIVED:
 		desc = "Hard Reset Received";
 		break;
@@ -299,6 +302,8 @@ mpi3mr_get_drv_cmd(struct mpi3mr_ioc *mrioc, u16 host_tag,
 	switch (host_tag) {
 	case MPI3MR_HOSTTAG_INITCMDS:
 		return &mrioc->init_cmds;
+	case MPI3MR_HOSTTAG_CFG_CMDS:
+		return &mrioc->cfg_cmds;
 	case MPI3MR_HOSTTAG_BSG_CMDS:
 		return &mrioc->bsg_cmds;
 	case MPI3MR_HOSTTAG_BLK_TMS:
@@ -307,6 +312,8 @@ mpi3mr_get_drv_cmd(struct mpi3mr_ioc *mrioc, u16 host_tag,
 		return &mrioc->pel_abort_cmd;
 	case MPI3MR_HOSTTAG_PEL_WAIT:
 		return &mrioc->pel_cmds;
+	case MPI3MR_HOSTTAG_TRANSPORT_CMDS:
+		return &mrioc->transport_cmds;
 	case MPI3MR_HOSTTAG_INVALID:
 		if (def_reply && def_reply->function ==
 		    MPI3_FUNCTION_EVENT_NOTIFICATION)
@@ -424,6 +431,9 @@ static int mpi3mr_process_admin_reply_q(struct mpi3mr_ioc *mrioc)
 		return 0;
 
 	do {
+		if (mrioc->unrecoverable)
+			break;
+
 		mrioc->admin_req_ci = le16_to_cpu(reply_desc->request_queue_ci);
 		mpi3mr_process_admin_reply_desc(mrioc, reply_desc, &reply_dma);
 		if (reply_dma)
@@ -509,6 +519,9 @@ int mpi3mr_process_op_reply_q(struct mpi3mr_ioc *mrioc,
 	}
 
 	do {
+		if (mrioc->unrecoverable)
+			break;
+
 		req_q_idx = le16_to_cpu(reply_desc->request_queue_id) - 1;
 		op_req_q = &mrioc->req_qinfo[req_q_idx];
 
@@ -530,6 +543,7 @@ int mpi3mr_process_op_reply_q(struct mpi3mr_ioc *mrioc,
 		if ((le16_to_cpu(reply_desc->reply_flags) &
 		    MPI3_REPLY_DESCRIPT_FLAGS_PHASE_MASK) != exp_phase)
 			break;
+#ifndef CONFIG_PREEMPT_RT
 		/*
 		 * Exit completion loop to avoid CPU lockup
 		 * Ensure remaining completion happens from threaded ISR.
@@ -538,7 +552,7 @@ int mpi3mr_process_op_reply_q(struct mpi3mr_ioc *mrioc,
 			op_reply_q->enable_irq_poll = true;
 			break;
 		}
-
+#endif
 	} while (1);
 
 	writel(reply_ci,
@@ -569,7 +583,8 @@ int mpi3mr_blk_mq_poll(struct Scsi_Host *shost, unsigned int queue_num)
 
 	mrioc = (struct mpi3mr_ioc *)shost->hostdata;
 
-	if ((mrioc->reset_in_progress || mrioc->prepare_for_reset))
+	if ((mrioc->reset_in_progress || mrioc->prepare_for_reset ||
+	    mrioc->unrecoverable))
 		return 0;
 
 	num_entries = mpi3mr_process_op_reply_q(mrioc,
@@ -607,18 +622,16 @@ static irqreturn_t mpi3mr_isr_primary(int irq, void *privdata)
 		return IRQ_NONE;
 }
 
+#ifndef CONFIG_PREEMPT_RT
+
 static irqreturn_t mpi3mr_isr(int irq, void *privdata)
 {
 	struct mpi3mr_intr_info *intr_info = privdata;
-	struct mpi3mr_ioc *mrioc;
-	u16 midx;
 	int ret;
 
 	if (!intr_info)
 		return IRQ_NONE;
 
-	mrioc = intr_info->mrioc;
-	midx = intr_info->msix_index;
 	/* Call primary ISR routine */
 	ret = mpi3mr_isr_primary(irq, privdata);
 
@@ -633,7 +646,7 @@ static irqreturn_t mpi3mr_isr(int irq, void *privdata)
 	    !atomic_read(&intr_info->op_reply_q->pend_ios))
 		return ret;
 
-	disable_irq_nosync(pci_irq_vector(mrioc->pdev, midx));
+	disable_irq_nosync(intr_info->os_irq);
 
 	return IRQ_WAKE_THREAD;
 }
@@ -663,7 +676,7 @@ static irqreturn_t mpi3mr_isr_poll(int irq, void *privdata)
 
 	/* Poll for pending IOs completions */
 	do {
-		if (!mrioc->intr_enabled)
+		if (!mrioc->intr_enabled || mrioc->unrecoverable)
 			break;
 
 		if (!midx)
@@ -679,11 +692,13 @@ static irqreturn_t mpi3mr_isr_poll(int irq, void *privdata)
 	    (num_op_reply < mrioc->max_host_ios));
 
 	intr_info->op_reply_q->enable_irq_poll = false;
-	enable_irq(pci_irq_vector(mrioc->pdev, midx));
+	enable_irq(intr_info->os_irq);
 
 	return IRQ_HANDLED;
 }
 
+#endif
+
 /**
  * mpi3mr_request_irq - Request IRQ and register ISR
  * @mrioc: Adapter instance reference
@@ -706,14 +721,20 @@ static inline int mpi3mr_request_irq(struct mpi3mr_ioc *mrioc, u16 index)
 	snprintf(intr_info->name, MPI3MR_NAME_LENGTH, "%s%d-msix%d",
 	    mrioc->driver_name, mrioc->id, index);
 
+#ifndef CONFIG_PREEMPT_RT
 	retval = request_threaded_irq(pci_irq_vector(pdev, index), mpi3mr_isr,
 	    mpi3mr_isr_poll, IRQF_SHARED, intr_info->name, intr_info);
+#else
+	retval = request_threaded_irq(pci_irq_vector(pdev, index), mpi3mr_isr_primary,
+	    NULL, IRQF_SHARED, intr_info->name, intr_info);
+#endif
 	if (retval) {
 		ioc_err(mrioc, "%s: Unable to allocate interrupt %d!\n",
 		    intr_info->name, pci_irq_vector(pdev, index));
 		return retval;
 	}
 
+	intr_info->os_irq = pci_irq_vector(pdev, index);
 	return retval;
 }
 
@@ -907,6 +928,8 @@ static const struct {
 	{ MPI3MR_RESET_FROM_SYSFS, "sysfs invocation" },
 	{ MPI3MR_RESET_FROM_SYSFS_TIMEOUT, "sysfs TM timeout" },
 	{ MPI3MR_RESET_FROM_FIRMWARE, "firmware asynchronous reset" },
+	{ MPI3MR_RESET_FROM_CFG_REQ_TIMEOUT, "configuration request timeout"},
+	{ MPI3MR_RESET_FROM_SAS_TRANSPORT_TIMEOUT, "timeout of a SAS transport layer request" },
 };
 
 /**
@@ -1130,6 +1153,13 @@ mpi3mr_revalidate_factsdata(struct mpi3mr_ioc *mrioc)
 		return -EPERM;
 	}
 
+	if ((mrioc->sas_transport_enabled) && (mrioc->facts.ioc_capabilities &
+	    MPI3_IOCFACTS_CAPABILITY_MULTIPATH_ENABLED))
+		ioc_err(mrioc,
+		    "critical error: multipath capability is enabled at the\n"
+		    "\tcontroller while sas transport support is enabled at the\n"
+		    "\tdriver, please reboot the system or reload the driver\n");
+
 	dev_handle_bitmap_sz = mrioc->facts.max_devhandle / 8;
 	if (mrioc->facts.max_devhandle % 8)
 		dev_handle_bitmap_sz++;
@@ -1194,6 +1224,14 @@ static int mpi3mr_bring_ioc_ready(struct mpi3mr_ioc *mrioc)
 			msleep(100);
 		} while (--timeout);
 
+		if (!pci_device_is_present(mrioc->pdev)) {
+			mrioc->unrecoverable = 1;
+			ioc_err(mrioc,
+			    "controller is not present while waiting to reset\n");
+			retval = -1;
+			goto out_device_not_present;
+		}
+
 		ioc_state = mpi3mr_get_iocstate(mrioc);
 		ioc_info(mrioc,
 		    "controller is in %s state after waiting to reset\n",
@@ -1251,6 +1289,13 @@ static int mpi3mr_bring_ioc_ready(struct mpi3mr_ioc *mrioc)
 			    mpi3mr_iocstate_name(ioc_state));
 			return 0;
 		}
+		if (!pci_device_is_present(mrioc->pdev)) {
+			mrioc->unrecoverable = 1;
+			ioc_err(mrioc,
+			    "controller is not present at the bringup\n");
+			retval = -1;
+			goto out_device_not_present;
+		}
 		msleep(100);
 	} while (--timeout);
 
@@ -1259,6 +1304,7 @@ out_failed:
 	ioc_err(mrioc,
 	    "failed to bring to ready state,  current state: %s\n",
 	    mpi3mr_iocstate_name(ioc_state));
+out_device_not_present:
 	return retval;
 }
 
@@ -2163,9 +2209,13 @@ int mpi3mr_op_request_post(struct mpi3mr_ioc *mrioc,
 		pi = 0;
 	op_req_q->pi = pi;
 
+#ifndef CONFIG_PREEMPT_RT
 	if (atomic_inc_return(&mrioc->op_reply_qinfo[reply_qidx].pend_ios)
 	    > MPI3MR_IRQ_POLL_TRIGGER_IOCOUNT)
 		mrioc->op_reply_qinfo[reply_qidx].enable_irq_poll = true;
+#else
+	atomic_inc_return(&mrioc->op_reply_qinfo[reply_qidx].pend_ios);
+#endif
 
 	writel(op_req_q->pi,
 	    &mrioc->sysif_regs->oper_queue_indexes[reply_qidx].producer_index);
@@ -2193,6 +2243,17 @@ void mpi3mr_check_rh_fault_ioc(struct mpi3mr_ioc *mrioc, u32 reason_code)
 {
 	u32 ioc_status, host_diagnostic, timeout;
 
+	if (mrioc->unrecoverable) {
+		ioc_err(mrioc, "controller is unrecoverable\n");
+		return;
+	}
+
+	if (!pci_device_is_present(mrioc->pdev)) {
+		mrioc->unrecoverable = 1;
+		ioc_err(mrioc, "controller is not present\n");
+		return;
+	}
+
 	ioc_status = readl(&mrioc->sysif_regs->ioc_status);
 	if ((ioc_status & MPI3_SYSIF_IOC_STATUS_RESET_HISTORY) ||
 	    (ioc_status & MPI3_SYSIF_IOC_STATUS_FAULT)) {
@@ -2384,9 +2445,21 @@ static void mpi3mr_watchdog_work(struct work_struct *work)
 	u32 fault, host_diagnostic, ioc_status;
 	u32 reset_reason = MPI3MR_RESET_FROM_FAULT_WATCH;
 
-	if (mrioc->reset_in_progress || mrioc->unrecoverable)
+	if (mrioc->reset_in_progress)
 		return;
 
+	if (!mrioc->unrecoverable && !pci_device_is_present(mrioc->pdev)) {
+		ioc_err(mrioc, "watchdog could not detect the controller\n");
+		mrioc->unrecoverable = 1;
+	}
+
+	if (mrioc->unrecoverable) {
+		ioc_err(mrioc,
+		    "flush pending commands for unrecoverable controller\n");
+		mpi3mr_flush_cmds_for_unrecovered_controller(mrioc);
+		return;
+	}
+
 	if (mrioc->ts_update_counter++ >= MPI3MR_TSUPDATE_INTERVAL) {
 		mrioc->ts_update_counter = 0;
 		mpi3mr_sync_timestamp(mrioc);
@@ -2426,11 +2499,12 @@ static void mpi3mr_watchdog_work(struct work_struct *work)
 	mrioc->diagsave_timeout = 0;
 
 	switch (fault) {
+	case MPI3_SYSIF_FAULT_CODE_COMPLETE_RESET_NEEDED:
 	case MPI3_SYSIF_FAULT_CODE_POWER_CYCLE_REQUIRED:
-		ioc_info(mrioc,
+		ioc_warn(mrioc,
 		    "controller requires system power cycle, marking controller as unrecoverable\n");
 		mrioc->unrecoverable = 1;
-		return;
+		goto schedule_work;
 	case MPI3_SYSIF_FAULT_CODE_SOFT_RESET_IN_PROGRESS:
 		return;
 	case MPI3_SYSIF_FAULT_CODE_CI_ACTIVATION_RESET:
@@ -2853,6 +2927,10 @@ static int mpi3mr_alloc_reply_sense_bufs(struct mpi3mr_ioc *mrioc)
 	if (!mrioc->bsg_cmds.reply)
 		goto out_failed;
 
+	mrioc->transport_cmds.reply = kzalloc(mrioc->reply_sz, GFP_KERNEL);
+	if (!mrioc->transport_cmds.reply)
+		goto out_failed;
+
 	for (i = 0; i < MPI3MR_NUM_DEVRMCMD; i++) {
 		mrioc->dev_rmhs_cmds[i].reply = kzalloc(mrioc->reply_sz,
 		    GFP_KERNEL);
@@ -3362,10 +3440,13 @@ out_failed:
 static void mpi3mr_port_enable_complete(struct mpi3mr_ioc *mrioc,
 	struct mpi3mr_drv_cmd *drv_cmd)
 {
-	drv_cmd->state = MPI3MR_CMD_NOTUSED;
 	drv_cmd->callback = NULL;
-	mrioc->scan_failed = drv_cmd->ioc_status;
 	mrioc->scan_started = 0;
+	if (drv_cmd->state & MPI3MR_CMD_RESET)
+		mrioc->scan_failed = MPI3_IOCSTATUS_INTERNAL_ERROR;
+	else
+		mrioc->scan_failed = drv_cmd->ioc_status;
+	drv_cmd->state = MPI3MR_CMD_NOTUSED;
 }
 
 /**
@@ -3447,6 +3528,7 @@ static const struct {
 	char *name;
 } mpi3mr_capabilities[] = {
 	{ MPI3_IOCFACTS_CAPABILITY_RAID_CAPABLE, "RAID" },
+	{ MPI3_IOCFACTS_CAPABILITY_MULTIPATH_ENABLED, "MultiPath" },
 };
 
 /**
@@ -3657,6 +3739,7 @@ static int mpi3mr_enable_events(struct mpi3mr_ioc *mrioc)
 	mpi3mr_unmask_events(mrioc, MPI3_EVENT_DEVICE_INFO_CHANGED);
 	mpi3mr_unmask_events(mrioc, MPI3_EVENT_DEVICE_STATUS_CHANGE);
 	mpi3mr_unmask_events(mrioc, MPI3_EVENT_ENCL_DEVICE_STATUS_CHANGE);
+	mpi3mr_unmask_events(mrioc, MPI3_EVENT_ENCL_DEVICE_ADDED);
 	mpi3mr_unmask_events(mrioc, MPI3_EVENT_SAS_TOPOLOGY_CHANGE_LIST);
 	mpi3mr_unmask_events(mrioc, MPI3_EVENT_SAS_DISCOVERY);
 	mpi3mr_unmask_events(mrioc, MPI3_EVENT_SAS_DEVICE_DISCOVERY_ERROR);
@@ -3727,6 +3810,14 @@ retry_init:
 		mrioc->max_host_ios = min_t(int, mrioc->max_host_ios,
 		    MPI3MR_HOST_IOS_KDUMP);
 
+	if (!(mrioc->facts.ioc_capabilities &
+	    MPI3_IOCFACTS_CAPABILITY_MULTIPATH_ENABLED)) {
+		mrioc->sas_transport_enabled = 1;
+		mrioc->scsi_device_channel = 1;
+		mrioc->shost->max_channel = 1;
+		mrioc->shost->transportt = mpi3mr_transport_template;
+	}
+
 	mrioc->reply_sz = mrioc->facts.reply_sz;
 
 	retval = mpi3mr_check_reset_dma_mask(mrioc);
@@ -3738,6 +3829,14 @@ retry_init:
 
 	mpi3mr_print_ioc_info(mrioc);
 
+	dprint_init(mrioc, "allocating config page buffers\n");
+	mrioc->cfg_page = dma_alloc_coherent(&mrioc->pdev->dev,
+	    MPI3MR_DEFAULT_CFG_PAGE_SZ, &mrioc->cfg_page_dma, GFP_KERNEL);
+	if (!mrioc->cfg_page)
+		goto out_failed_noretry;
+
+	mrioc->cfg_page_sz = MPI3MR_DEFAULT_CFG_PAGE_SZ;
+
 	retval = mpi3mr_alloc_reply_sense_bufs(mrioc);
 	if (retval) {
 		ioc_err(mrioc,
@@ -3795,8 +3894,7 @@ retry_init:
 	if (!mrioc->throttle_groups && mrioc->num_io_throttle_group) {
 		dprint_init(mrioc, "allocating memory for throttle groups\n");
 		sz = sizeof(struct mpi3mr_throttle_group_info);
-		mrioc->throttle_groups = (struct mpi3mr_throttle_group_info *)
-		    kcalloc(mrioc->num_io_throttle_group, sz, GFP_KERNEL);
+		mrioc->throttle_groups = kcalloc(mrioc->num_io_throttle_group, sz, GFP_KERNEL);
 		if (!mrioc->throttle_groups)
 			goto out_failed_noretry;
 	}
@@ -3845,8 +3943,12 @@ int mpi3mr_reinit_ioc(struct mpi3mr_ioc *mrioc, u8 is_resume)
 	int retval = 0;
 	u8 retry = 0;
 	struct mpi3_ioc_facts_data facts_data;
+	u32 pe_timeout, ioc_status;
 
 retry_init:
+	pe_timeout =
+	    (MPI3MR_PORTENABLE_TIMEOUT / MPI3MR_PORTENABLE_POLL_INTERVAL);
+
 	dprint_reset(mrioc, "bringing up the controller to ready state\n");
 	retval = mpi3mr_bring_ioc_ready(mrioc);
 	if (retval) {
@@ -3936,12 +4038,50 @@ retry_init:
 		goto out_failed;
 	}
 
+	mrioc->device_refresh_on = 1;
+	mpi3mr_add_event_wait_for_device_refresh(mrioc);
+
 	ioc_info(mrioc, "sending port enable\n");
-	retval = mpi3mr_issue_port_enable(mrioc, 0);
+	retval = mpi3mr_issue_port_enable(mrioc, 1);
 	if (retval) {
 		ioc_err(mrioc, "failed to issue port enable\n");
 		goto out_failed;
 	}
+	do {
+		ssleep(MPI3MR_PORTENABLE_POLL_INTERVAL);
+		if (mrioc->init_cmds.state == MPI3MR_CMD_NOTUSED)
+			break;
+		if (!pci_device_is_present(mrioc->pdev))
+			mrioc->unrecoverable = 1;
+		if (mrioc->unrecoverable) {
+			retval = -1;
+			goto out_failed_noretry;
+		}
+		ioc_status = readl(&mrioc->sysif_regs->ioc_status);
+		if ((ioc_status & MPI3_SYSIF_IOC_STATUS_RESET_HISTORY) ||
+		    (ioc_status & MPI3_SYSIF_IOC_STATUS_FAULT)) {
+			mpi3mr_print_fault_info(mrioc);
+			mrioc->init_cmds.is_waiting = 0;
+			mrioc->init_cmds.callback = NULL;
+			mrioc->init_cmds.state = MPI3MR_CMD_NOTUSED;
+			goto out_failed;
+		}
+	} while (--pe_timeout);
+
+	if (!pe_timeout) {
+		ioc_err(mrioc, "port enable timed out\n");
+		mpi3mr_check_rh_fault_ioc(mrioc,
+		    MPI3MR_RESET_FROM_PE_TIMEOUT);
+		mrioc->init_cmds.is_waiting = 0;
+		mrioc->init_cmds.callback = NULL;
+		mrioc->init_cmds.state = MPI3MR_CMD_NOTUSED;
+		goto out_failed;
+	} else if (mrioc->scan_failed) {
+		ioc_err(mrioc,
+		    "port enable failed with status=0x%04x\n",
+		    mrioc->scan_failed);
+	} else
+		ioc_info(mrioc, "port enable completed successfully\n");
 
 	ioc_info(mrioc, "controller %s completed successfully\n",
 	    (is_resume)?"resume":"re-initialization");
@@ -4042,6 +4182,8 @@ void mpi3mr_memset_buffers(struct mpi3mr_ioc *mrioc)
 		    sizeof(*mrioc->pel_cmds.reply));
 		memset(mrioc->pel_abort_cmd.reply, 0,
 		    sizeof(*mrioc->pel_abort_cmd.reply));
+		memset(mrioc->transport_cmds.reply, 0,
+		    sizeof(*mrioc->transport_cmds.reply));
 		for (i = 0; i < MPI3MR_NUM_DEVRMCMD; i++)
 			memset(mrioc->dev_rmhs_cmds[i].reply, 0,
 			    sizeof(*mrioc->dev_rmhs_cmds[i].reply));
@@ -4102,6 +4244,8 @@ void mpi3mr_free_mem(struct mpi3mr_ioc *mrioc)
 	u16 i;
 	struct mpi3mr_intr_info *intr_info;
 
+	mpi3mr_free_enclosure_list(mrioc);
+
 	if (mrioc->sense_buf_pool) {
 		if (mrioc->sense_buf)
 			dma_pool_free(mrioc->sense_buf_pool, mrioc->sense_buf,
@@ -4187,6 +4331,9 @@ void mpi3mr_free_mem(struct mpi3mr_ioc *mrioc)
 	kfree(mrioc->chain_bitmap);
 	mrioc->chain_bitmap = NULL;
 
+	kfree(mrioc->transport_cmds.reply);
+	mrioc->transport_cmds.reply = NULL;
+
 	for (i = 0; i < MPI3MR_NUM_DEVRMCMD; i++) {
 		kfree(mrioc->dev_rmhs_cmds[i].reply);
 		mrioc->dev_rmhs_cmds[i].reply = NULL;
@@ -4355,13 +4502,17 @@ static inline void mpi3mr_drv_cmd_comp_reset(struct mpi3mr_ioc *mrioc,
  *
  * Return: Nothing.
  */
-static void mpi3mr_flush_drv_cmds(struct mpi3mr_ioc *mrioc)
+void mpi3mr_flush_drv_cmds(struct mpi3mr_ioc *mrioc)
 {
 	struct mpi3mr_drv_cmd *cmdptr;
 	u8 i;
 
 	cmdptr = &mrioc->init_cmds;
 	mpi3mr_drv_cmd_comp_reset(mrioc, cmdptr);
+
+	cmdptr = &mrioc->cfg_cmds;
+	mpi3mr_drv_cmd_comp_reset(mrioc, cmdptr);
+
 	cmdptr = &mrioc->bsg_cmds;
 	mpi3mr_drv_cmd_comp_reset(mrioc, cmdptr);
 	cmdptr = &mrioc->host_tm_cmds;
@@ -4383,6 +4534,8 @@ static void mpi3mr_flush_drv_cmds(struct mpi3mr_ioc *mrioc)
 	cmdptr = &mrioc->pel_abort_cmd;
 	mpi3mr_drv_cmd_comp_reset(mrioc, cmdptr);
 
+	cmdptr = &mrioc->transport_cmds;
+	mpi3mr_drv_cmd_comp_reset(mrioc, cmdptr);
 }
 
 /**
@@ -4681,6 +4834,7 @@ int mpi3mr_soft_reset_handler(struct mpi3mr_ioc *mrioc,
 	ioc_info(mrioc, "controller reset is triggered by %s\n",
 	    mpi3mr_reset_rc_name(reset_reason));
 
+	mrioc->device_refresh_on = 0;
 	mrioc->reset_in_progress = 1;
 	mrioc->stop_bsgs = 1;
 	mrioc->prev_reset_result = -1;
@@ -4739,6 +4893,8 @@ int mpi3mr_soft_reset_handler(struct mpi3mr_ioc *mrioc,
 	mpi3mr_flush_host_io(mrioc);
 	mpi3mr_cleanup_fwevt_list(mrioc);
 	mpi3mr_invalidate_devhandles(mrioc);
+	mpi3mr_free_enclosure_list(mrioc);
+
 	if (mrioc->prepare_for_reset) {
 		mrioc->prepare_for_reset = 0;
 		mrioc->prepare_for_reset_timeout_counter = 0;
@@ -4750,7 +4906,7 @@ int mpi3mr_soft_reset_handler(struct mpi3mr_ioc *mrioc,
 		    mrioc->name, reset_reason);
 		goto out;
 	}
-	ssleep(10);
+	ssleep(MPI3MR_RESET_TOPOLOGY_SETTLE_TIME);
 
 out:
 	if (!retval) {
@@ -4762,7 +4918,8 @@ out:
 			mpi3mr_pel_wait_post(mrioc, &mrioc->pel_cmds);
 		}
 
-		mpi3mr_rfresh_tgtdevs(mrioc);
+		mrioc->device_refresh_on = 0;
+
 		mrioc->ts_update_counter = 0;
 		spin_lock_irqsave(&mrioc->watchdog_lock, flags);
 		if (mrioc->watchdog_work_q)
@@ -4776,9 +4933,11 @@ out:
 	} else {
 		mpi3mr_issue_reset(mrioc,
 		    MPI3_SYSIF_HOST_DIAG_RESET_ACTION_DIAG_FAULT, reset_reason);
+		mrioc->device_refresh_on = 0;
 		mrioc->unrecoverable = 1;
 		mrioc->reset_in_progress = 0;
 		retval = -1;
+		mpi3mr_flush_cmds_for_unrecovered_controller(mrioc);
 	}
 	mrioc->prev_reset_result = retval;
 	mutex_unlock(&mrioc->reset_mutex);
@@ -4786,3 +4945,836 @@ out:
 	    ((retval == 0) ? "successful" : "failed"));
 	return retval;
 }
+
+
+/**
+ * mpi3mr_free_config_dma_memory - free memory for config page
+ * @mrioc: Adapter instance reference
+ * @mem_desc: memory descriptor structure
+ *
+ * Check whether the size of the buffer specified by the memory
+ * descriptor is greater than the default page size if so then
+ * free the memory pointed by the descriptor.
+ *
+ * Return: Nothing.
+ */
+static void mpi3mr_free_config_dma_memory(struct mpi3mr_ioc *mrioc,
+	struct dma_memory_desc *mem_desc)
+{
+	if ((mem_desc->size > mrioc->cfg_page_sz) && mem_desc->addr) {
+		dma_free_coherent(&mrioc->pdev->dev, mem_desc->size,
+		    mem_desc->addr, mem_desc->dma_addr);
+		mem_desc->addr = NULL;
+	}
+}
+
+/**
+ * mpi3mr_alloc_config_dma_memory - Alloc memory for config page
+ * @mrioc: Adapter instance reference
+ * @mem_desc: Memory descriptor to hold dma memory info
+ *
+ * This function allocates new dmaable memory or provides the
+ * default config page dmaable memory based on the memory size
+ * described by the descriptor.
+ *
+ * Return: 0 on success, non-zero on failure.
+ */
+static int mpi3mr_alloc_config_dma_memory(struct mpi3mr_ioc *mrioc,
+	struct dma_memory_desc *mem_desc)
+{
+	if (mem_desc->size > mrioc->cfg_page_sz) {
+		mem_desc->addr = dma_alloc_coherent(&mrioc->pdev->dev,
+		    mem_desc->size, &mem_desc->dma_addr, GFP_KERNEL);
+		if (!mem_desc->addr)
+			return -ENOMEM;
+	} else {
+		mem_desc->addr = mrioc->cfg_page;
+		mem_desc->dma_addr = mrioc->cfg_page_dma;
+		memset(mem_desc->addr, 0, mrioc->cfg_page_sz);
+	}
+	return 0;
+}
+
+/**
+ * mpi3mr_post_cfg_req - Issue config requests and wait
+ * @mrioc: Adapter instance reference
+ * @cfg_req: Configuration request
+ * @timeout: Timeout in seconds
+ * @ioc_status: Pointer to return ioc status
+ *
+ * A generic function for posting MPI3 configuration request to
+ * the firmware. This blocks for the completion of request for
+ * timeout seconds and if the request times out this function
+ * faults the controller with proper reason code.
+ *
+ * On successful completion of the request this function returns
+ * appropriate ioc status from the firmware back to the caller.
+ *
+ * Return: 0 on success, non-zero on failure.
+ */
+static int mpi3mr_post_cfg_req(struct mpi3mr_ioc *mrioc,
+	struct mpi3_config_request *cfg_req, int timeout, u16 *ioc_status)
+{
+	int retval = 0;
+
+	mutex_lock(&mrioc->cfg_cmds.mutex);
+	if (mrioc->cfg_cmds.state & MPI3MR_CMD_PENDING) {
+		retval = -1;
+		ioc_err(mrioc, "sending config request failed due to command in use\n");
+		mutex_unlock(&mrioc->cfg_cmds.mutex);
+		goto out;
+	}
+	mrioc->cfg_cmds.state = MPI3MR_CMD_PENDING;
+	mrioc->cfg_cmds.is_waiting = 1;
+	mrioc->cfg_cmds.callback = NULL;
+	mrioc->cfg_cmds.ioc_status = 0;
+	mrioc->cfg_cmds.ioc_loginfo = 0;
+
+	cfg_req->host_tag = cpu_to_le16(MPI3MR_HOSTTAG_CFG_CMDS);
+	cfg_req->function = MPI3_FUNCTION_CONFIG;
+
+	init_completion(&mrioc->cfg_cmds.done);
+	dprint_cfg_info(mrioc, "posting config request\n");
+	if (mrioc->logging_level & MPI3_DEBUG_CFG_INFO)
+		dprint_dump(cfg_req, sizeof(struct mpi3_config_request),
+		    "mpi3_cfg_req");
+	retval = mpi3mr_admin_request_post(mrioc, cfg_req, sizeof(*cfg_req), 1);
+	if (retval) {
+		ioc_err(mrioc, "posting config request failed\n");
+		goto out_unlock;
+	}
+	wait_for_completion_timeout(&mrioc->cfg_cmds.done, (timeout * HZ));
+	if (!(mrioc->cfg_cmds.state & MPI3MR_CMD_COMPLETE)) {
+		mpi3mr_check_rh_fault_ioc(mrioc,
+		    MPI3MR_RESET_FROM_CFG_REQ_TIMEOUT);
+		ioc_err(mrioc, "config request timed out\n");
+		retval = -1;
+		goto out_unlock;
+	}
+	*ioc_status = mrioc->cfg_cmds.ioc_status & MPI3_IOCSTATUS_STATUS_MASK;
+	if ((*ioc_status) != MPI3_IOCSTATUS_SUCCESS)
+		dprint_cfg_err(mrioc,
+		    "cfg_page request returned with ioc_status(0x%04x), log_info(0x%08x)\n",
+		    *ioc_status, mrioc->cfg_cmds.ioc_loginfo);
+
+out_unlock:
+	mrioc->cfg_cmds.state = MPI3MR_CMD_NOTUSED;
+	mutex_unlock(&mrioc->cfg_cmds.mutex);
+
+out:
+	return retval;
+}
+
+/**
+ * mpi3mr_process_cfg_req - config page request processor
+ * @mrioc: Adapter instance reference
+ * @cfg_req: Configuration request
+ * @cfg_hdr: Configuration page header
+ * @timeout: Timeout in seconds
+ * @ioc_status: Pointer to return ioc status
+ * @cfg_buf: Memory pointer to copy config page or header
+ * @cfg_buf_sz: Size of the memory to get config page or header
+ *
+ * This is handler for config page read, write and config page
+ * header read operations.
+ *
+ * This function expects the cfg_req to be populated with page
+ * type, page number, action for the header read and with page
+ * address for all other operations.
+ *
+ * The cfg_hdr can be passed as null for reading required header
+ * details for read/write pages the cfg_hdr should point valid
+ * configuration page header.
+ *
+ * This allocates dmaable memory based on the size of the config
+ * buffer and set the SGE of the cfg_req.
+ *
+ * For write actions, the config page data has to be passed in
+ * the cfg_buf and size of the data has to be mentioned in the
+ * cfg_buf_sz.
+ *
+ * For read/header actions, on successful completion of the
+ * request with successful ioc_status the data will be copied
+ * into the cfg_buf limited to a minimum of actual page size and
+ * cfg_buf_sz
+ *
+ *
+ * Return: 0 on success, non-zero on failure.
+ */
+static int mpi3mr_process_cfg_req(struct mpi3mr_ioc *mrioc,
+	struct mpi3_config_request *cfg_req,
+	struct mpi3_config_page_header *cfg_hdr, int timeout, u16 *ioc_status,
+	void *cfg_buf, u32 cfg_buf_sz)
+{
+	struct dma_memory_desc mem_desc;
+	int retval = -1;
+	u8 invalid_action = 0;
+	u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
+
+	memset(&mem_desc, 0, sizeof(struct dma_memory_desc));
+
+	if (cfg_req->action == MPI3_CONFIG_ACTION_PAGE_HEADER)
+		mem_desc.size = sizeof(struct mpi3_config_page_header);
+	else {
+		if (!cfg_hdr) {
+			ioc_err(mrioc, "null config header passed for config action(%d), page_type(0x%02x), page_num(%d)\n",
+			    cfg_req->action, cfg_req->page_type,
+			    cfg_req->page_number);
+			goto out;
+		}
+		switch (cfg_hdr->page_attribute & MPI3_CONFIG_PAGEATTR_MASK) {
+		case MPI3_CONFIG_PAGEATTR_READ_ONLY:
+			if (cfg_req->action
+			    != MPI3_CONFIG_ACTION_READ_CURRENT)
+				invalid_action = 1;
+			break;
+		case MPI3_CONFIG_PAGEATTR_CHANGEABLE:
+			if ((cfg_req->action ==
+			     MPI3_CONFIG_ACTION_READ_PERSISTENT) ||
+			    (cfg_req->action ==
+			     MPI3_CONFIG_ACTION_WRITE_PERSISTENT))
+				invalid_action = 1;
+			break;
+		case MPI3_CONFIG_PAGEATTR_PERSISTENT:
+		default:
+			break;
+		}
+		if (invalid_action) {
+			ioc_err(mrioc,
+			    "config action(%d) is not allowed for page_type(0x%02x), page_num(%d) with page_attribute(0x%02x)\n",
+			    cfg_req->action, cfg_req->page_type,
+			    cfg_req->page_number, cfg_hdr->page_attribute);
+			goto out;
+		}
+		mem_desc.size = le16_to_cpu(cfg_hdr->page_length) * 4;
+		cfg_req->page_length = cfg_hdr->page_length;
+		cfg_req->page_version = cfg_hdr->page_version;
+	}
+	if (mpi3mr_alloc_config_dma_memory(mrioc, &mem_desc))
+		goto out;
+
+	mpi3mr_add_sg_single(&cfg_req->sgl, sgl_flags, mem_desc.size,
+	    mem_desc.dma_addr);
+
+	if ((cfg_req->action == MPI3_CONFIG_ACTION_WRITE_PERSISTENT) ||
+	    (cfg_req->action == MPI3_CONFIG_ACTION_WRITE_CURRENT)) {
+		memcpy(mem_desc.addr, cfg_buf, min_t(u16, mem_desc.size,
+		    cfg_buf_sz));
+		dprint_cfg_info(mrioc, "config buffer to be written\n");
+		if (mrioc->logging_level & MPI3_DEBUG_CFG_INFO)
+			dprint_dump(mem_desc.addr, mem_desc.size, "cfg_buf");
+	}
+
+	if (mpi3mr_post_cfg_req(mrioc, cfg_req, timeout, ioc_status))
+		goto out;
+
+	retval = 0;
+	if ((*ioc_status == MPI3_IOCSTATUS_SUCCESS) &&
+	    (cfg_req->action != MPI3_CONFIG_ACTION_WRITE_PERSISTENT) &&
+	    (cfg_req->action != MPI3_CONFIG_ACTION_WRITE_CURRENT)) {
+		memcpy(cfg_buf, mem_desc.addr, min_t(u16, mem_desc.size,
+		    cfg_buf_sz));
+		dprint_cfg_info(mrioc, "config buffer read\n");
+		if (mrioc->logging_level & MPI3_DEBUG_CFG_INFO)
+			dprint_dump(mem_desc.addr, mem_desc.size, "cfg_buf");
+	}
+
+out:
+	mpi3mr_free_config_dma_memory(mrioc, &mem_desc);
+	return retval;
+}
+
+/**
+ * mpi3mr_cfg_get_dev_pg0 - Read current device page0
+ * @mrioc: Adapter instance reference
+ * @ioc_status: Pointer to return ioc status
+ * @dev_pg0: Pointer to return device page 0
+ * @pg_sz: Size of the memory allocated to the page pointer
+ * @form: The form to be used for addressing the page
+ * @form_spec: Form specific information like device handle
+ *
+ * This is handler for config page read for a specific device
+ * page0. The ioc_status has the controller returned ioc_status.
+ * This routine doesn't check ioc_status to decide whether the
+ * page read is success or not and it is the callers
+ * responsibility.
+ *
+ * Return: 0 on success, non-zero on failure.
+ */
+int mpi3mr_cfg_get_dev_pg0(struct mpi3mr_ioc *mrioc, u16 *ioc_status,
+	struct mpi3_device_page0 *dev_pg0, u16 pg_sz, u32 form, u32 form_spec)
+{
+	struct mpi3_config_page_header cfg_hdr;
+	struct mpi3_config_request cfg_req;
+	u32 page_address;
+
+	memset(dev_pg0, 0, pg_sz);
+	memset(&cfg_hdr, 0, sizeof(cfg_hdr));
+	memset(&cfg_req, 0, sizeof(cfg_req));
+
+	cfg_req.function = MPI3_FUNCTION_CONFIG;
+	cfg_req.action = MPI3_CONFIG_ACTION_PAGE_HEADER;
+	cfg_req.page_type = MPI3_CONFIG_PAGETYPE_DEVICE;
+	cfg_req.page_number = 0;
+	cfg_req.page_address = 0;
+
+	if (mpi3mr_process_cfg_req(mrioc, &cfg_req, NULL,
+	    MPI3MR_INTADMCMD_TIMEOUT, ioc_status, &cfg_hdr, sizeof(cfg_hdr))) {
+		ioc_err(mrioc, "device page0 header read failed\n");
+		goto out_failed;
+	}
+	if (*ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		ioc_err(mrioc, "device page0 header read failed with ioc_status(0x%04x)\n",
+		    *ioc_status);
+		goto out_failed;
+	}
+	cfg_req.action = MPI3_CONFIG_ACTION_READ_CURRENT;
+	page_address = ((form & MPI3_DEVICE_PGAD_FORM_MASK) |
+	    (form_spec & MPI3_DEVICE_PGAD_HANDLE_MASK));
+	cfg_req.page_address = cpu_to_le32(page_address);
+	if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
+	    MPI3MR_INTADMCMD_TIMEOUT, ioc_status, dev_pg0, pg_sz)) {
+		ioc_err(mrioc, "device page0 read failed\n");
+		goto out_failed;
+	}
+	return 0;
+out_failed:
+	return -1;
+}
+
+
+/**
+ * mpi3mr_cfg_get_sas_phy_pg0 - Read current SAS Phy page0
+ * @mrioc: Adapter instance reference
+ * @ioc_status: Pointer to return ioc status
+ * @phy_pg0: Pointer to return SAS Phy page 0
+ * @pg_sz: Size of the memory allocated to the page pointer
+ * @form: The form to be used for addressing the page
+ * @form_spec: Form specific information like phy number
+ *
+ * This is handler for config page read for a specific SAS Phy
+ * page0. The ioc_status has the controller returned ioc_status.
+ * This routine doesn't check ioc_status to decide whether the
+ * page read is success or not and it is the callers
+ * responsibility.
+ *
+ * Return: 0 on success, non-zero on failure.
+ */
+int mpi3mr_cfg_get_sas_phy_pg0(struct mpi3mr_ioc *mrioc, u16 *ioc_status,
+	struct mpi3_sas_phy_page0 *phy_pg0, u16 pg_sz, u32 form,
+	u32 form_spec)
+{
+	struct mpi3_config_page_header cfg_hdr;
+	struct mpi3_config_request cfg_req;
+	u32 page_address;
+
+	memset(phy_pg0, 0, pg_sz);
+	memset(&cfg_hdr, 0, sizeof(cfg_hdr));
+	memset(&cfg_req, 0, sizeof(cfg_req));
+
+	cfg_req.function = MPI3_FUNCTION_CONFIG;
+	cfg_req.action = MPI3_CONFIG_ACTION_PAGE_HEADER;
+	cfg_req.page_type = MPI3_CONFIG_PAGETYPE_SAS_PHY;
+	cfg_req.page_number = 0;
+	cfg_req.page_address = 0;
+
+	if (mpi3mr_process_cfg_req(mrioc, &cfg_req, NULL,
+	    MPI3MR_INTADMCMD_TIMEOUT, ioc_status, &cfg_hdr, sizeof(cfg_hdr))) {
+		ioc_err(mrioc, "sas phy page0 header read failed\n");
+		goto out_failed;
+	}
+	if (*ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		ioc_err(mrioc, "sas phy page0 header read failed with ioc_status(0x%04x)\n",
+		    *ioc_status);
+		goto out_failed;
+	}
+	cfg_req.action = MPI3_CONFIG_ACTION_READ_CURRENT;
+	page_address = ((form & MPI3_SAS_PHY_PGAD_FORM_MASK) |
+	    (form_spec & MPI3_SAS_PHY_PGAD_PHY_NUMBER_MASK));
+	cfg_req.page_address = cpu_to_le32(page_address);
+	if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
+	    MPI3MR_INTADMCMD_TIMEOUT, ioc_status, phy_pg0, pg_sz)) {
+		ioc_err(mrioc, "sas phy page0 read failed\n");
+		goto out_failed;
+	}
+	return 0;
+out_failed:
+	return -1;
+}
+
+/**
+ * mpi3mr_cfg_get_sas_phy_pg1 - Read current SAS Phy page1
+ * @mrioc: Adapter instance reference
+ * @ioc_status: Pointer to return ioc status
+ * @phy_pg1: Pointer to return SAS Phy page 1
+ * @pg_sz: Size of the memory allocated to the page pointer
+ * @form: The form to be used for addressing the page
+ * @form_spec: Form specific information like phy number
+ *
+ * This is handler for config page read for a specific SAS Phy
+ * page1. The ioc_status has the controller returned ioc_status.
+ * This routine doesn't check ioc_status to decide whether the
+ * page read is success or not and it is the callers
+ * responsibility.
+ *
+ * Return: 0 on success, non-zero on failure.
+ */
+int mpi3mr_cfg_get_sas_phy_pg1(struct mpi3mr_ioc *mrioc, u16 *ioc_status,
+	struct mpi3_sas_phy_page1 *phy_pg1, u16 pg_sz, u32 form,
+	u32 form_spec)
+{
+	struct mpi3_config_page_header cfg_hdr;
+	struct mpi3_config_request cfg_req;
+	u32 page_address;
+
+	memset(phy_pg1, 0, pg_sz);
+	memset(&cfg_hdr, 0, sizeof(cfg_hdr));
+	memset(&cfg_req, 0, sizeof(cfg_req));
+
+	cfg_req.function = MPI3_FUNCTION_CONFIG;
+	cfg_req.action = MPI3_CONFIG_ACTION_PAGE_HEADER;
+	cfg_req.page_type = MPI3_CONFIG_PAGETYPE_SAS_PHY;
+	cfg_req.page_number = 1;
+	cfg_req.page_address = 0;
+
+	if (mpi3mr_process_cfg_req(mrioc, &cfg_req, NULL,
+	    MPI3MR_INTADMCMD_TIMEOUT, ioc_status, &cfg_hdr, sizeof(cfg_hdr))) {
+		ioc_err(mrioc, "sas phy page1 header read failed\n");
+		goto out_failed;
+	}
+	if (*ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		ioc_err(mrioc, "sas phy page1 header read failed with ioc_status(0x%04x)\n",
+		    *ioc_status);
+		goto out_failed;
+	}
+	cfg_req.action = MPI3_CONFIG_ACTION_READ_CURRENT;
+	page_address = ((form & MPI3_SAS_PHY_PGAD_FORM_MASK) |
+	    (form_spec & MPI3_SAS_PHY_PGAD_PHY_NUMBER_MASK));
+	cfg_req.page_address = cpu_to_le32(page_address);
+	if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
+	    MPI3MR_INTADMCMD_TIMEOUT, ioc_status, phy_pg1, pg_sz)) {
+		ioc_err(mrioc, "sas phy page1 read failed\n");
+		goto out_failed;
+	}
+	return 0;
+out_failed:
+	return -1;
+}
+
+
+/**
+ * mpi3mr_cfg_get_sas_exp_pg0 - Read current SAS Expander page0
+ * @mrioc: Adapter instance reference
+ * @ioc_status: Pointer to return ioc status
+ * @exp_pg0: Pointer to return SAS Expander page 0
+ * @pg_sz: Size of the memory allocated to the page pointer
+ * @form: The form to be used for addressing the page
+ * @form_spec: Form specific information like device handle
+ *
+ * This is handler for config page read for a specific SAS
+ * Expander page0. The ioc_status has the controller returned
+ * ioc_status. This routine doesn't check ioc_status to decide
+ * whether the page read is success or not and it is the callers
+ * responsibility.
+ *
+ * Return: 0 on success, non-zero on failure.
+ */
+int mpi3mr_cfg_get_sas_exp_pg0(struct mpi3mr_ioc *mrioc, u16 *ioc_status,
+	struct mpi3_sas_expander_page0 *exp_pg0, u16 pg_sz, u32 form,
+	u32 form_spec)
+{
+	struct mpi3_config_page_header cfg_hdr;
+	struct mpi3_config_request cfg_req;
+	u32 page_address;
+
+	memset(exp_pg0, 0, pg_sz);
+	memset(&cfg_hdr, 0, sizeof(cfg_hdr));
+	memset(&cfg_req, 0, sizeof(cfg_req));
+
+	cfg_req.function = MPI3_FUNCTION_CONFIG;
+	cfg_req.action = MPI3_CONFIG_ACTION_PAGE_HEADER;
+	cfg_req.page_type = MPI3_CONFIG_PAGETYPE_SAS_EXPANDER;
+	cfg_req.page_number = 0;
+	cfg_req.page_address = 0;
+
+	if (mpi3mr_process_cfg_req(mrioc, &cfg_req, NULL,
+	    MPI3MR_INTADMCMD_TIMEOUT, ioc_status, &cfg_hdr, sizeof(cfg_hdr))) {
+		ioc_err(mrioc, "expander page0 header read failed\n");
+		goto out_failed;
+	}
+	if (*ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		ioc_err(mrioc, "expander page0 header read failed with ioc_status(0x%04x)\n",
+		    *ioc_status);
+		goto out_failed;
+	}
+	cfg_req.action = MPI3_CONFIG_ACTION_READ_CURRENT;
+	page_address = ((form & MPI3_SAS_EXPAND_PGAD_FORM_MASK) |
+	    (form_spec & (MPI3_SAS_EXPAND_PGAD_PHYNUM_MASK |
+	    MPI3_SAS_EXPAND_PGAD_HANDLE_MASK)));
+	cfg_req.page_address = cpu_to_le32(page_address);
+	if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
+	    MPI3MR_INTADMCMD_TIMEOUT, ioc_status, exp_pg0, pg_sz)) {
+		ioc_err(mrioc, "expander page0 read failed\n");
+		goto out_failed;
+	}
+	return 0;
+out_failed:
+	return -1;
+}
+
+/**
+ * mpi3mr_cfg_get_sas_exp_pg1 - Read current SAS Expander page1
+ * @mrioc: Adapter instance reference
+ * @ioc_status: Pointer to return ioc status
+ * @exp_pg1: Pointer to return SAS Expander page 1
+ * @pg_sz: Size of the memory allocated to the page pointer
+ * @form: The form to be used for addressing the page
+ * @form_spec: Form specific information like phy number
+ *
+ * This is handler for config page read for a specific SAS
+ * Expander page1. The ioc_status has the controller returned
+ * ioc_status. This routine doesn't check ioc_status to decide
+ * whether the page read is success or not and it is the callers
+ * responsibility.
+ *
+ * Return: 0 on success, non-zero on failure.
+ */
+int mpi3mr_cfg_get_sas_exp_pg1(struct mpi3mr_ioc *mrioc, u16 *ioc_status,
+	struct mpi3_sas_expander_page1 *exp_pg1, u16 pg_sz, u32 form,
+	u32 form_spec)
+{
+	struct mpi3_config_page_header cfg_hdr;
+	struct mpi3_config_request cfg_req;
+	u32 page_address;
+
+	memset(exp_pg1, 0, pg_sz);
+	memset(&cfg_hdr, 0, sizeof(cfg_hdr));
+	memset(&cfg_req, 0, sizeof(cfg_req));
+
+	cfg_req.function = MPI3_FUNCTION_CONFIG;
+	cfg_req.action = MPI3_CONFIG_ACTION_PAGE_HEADER;
+	cfg_req.page_type = MPI3_CONFIG_PAGETYPE_SAS_EXPANDER;
+	cfg_req.page_number = 1;
+	cfg_req.page_address = 0;
+
+	if (mpi3mr_process_cfg_req(mrioc, &cfg_req, NULL,
+	    MPI3MR_INTADMCMD_TIMEOUT, ioc_status, &cfg_hdr, sizeof(cfg_hdr))) {
+		ioc_err(mrioc, "expander page1 header read failed\n");
+		goto out_failed;
+	}
+	if (*ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		ioc_err(mrioc, "expander page1 header read failed with ioc_status(0x%04x)\n",
+		    *ioc_status);
+		goto out_failed;
+	}
+	cfg_req.action = MPI3_CONFIG_ACTION_READ_CURRENT;
+	page_address = ((form & MPI3_SAS_EXPAND_PGAD_FORM_MASK) |
+	    (form_spec & (MPI3_SAS_EXPAND_PGAD_PHYNUM_MASK |
+	    MPI3_SAS_EXPAND_PGAD_HANDLE_MASK)));
+	cfg_req.page_address = cpu_to_le32(page_address);
+	if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
+	    MPI3MR_INTADMCMD_TIMEOUT, ioc_status, exp_pg1, pg_sz)) {
+		ioc_err(mrioc, "expander page1 read failed\n");
+		goto out_failed;
+	}
+	return 0;
+out_failed:
+	return -1;
+}
+
+/**
+ * mpi3mr_cfg_get_enclosure_pg0 - Read current Enclosure page0
+ * @mrioc: Adapter instance reference
+ * @ioc_status: Pointer to return ioc status
+ * @encl_pg0: Pointer to return Enclosure page 0
+ * @pg_sz: Size of the memory allocated to the page pointer
+ * @form: The form to be used for addressing the page
+ * @form_spec: Form specific information like device handle
+ *
+ * This is handler for config page read for a specific Enclosure
+ * page0. The ioc_status has the controller returned ioc_status.
+ * This routine doesn't check ioc_status to decide whether the
+ * page read is success or not and it is the callers
+ * responsibility.
+ *
+ * Return: 0 on success, non-zero on failure.
+ */
+int mpi3mr_cfg_get_enclosure_pg0(struct mpi3mr_ioc *mrioc, u16 *ioc_status,
+	struct mpi3_enclosure_page0 *encl_pg0, u16 pg_sz, u32 form,
+	u32 form_spec)
+{
+	struct mpi3_config_page_header cfg_hdr;
+	struct mpi3_config_request cfg_req;
+	u32 page_address;
+
+	memset(encl_pg0, 0, pg_sz);
+	memset(&cfg_hdr, 0, sizeof(cfg_hdr));
+	memset(&cfg_req, 0, sizeof(cfg_req));
+
+	cfg_req.function = MPI3_FUNCTION_CONFIG;
+	cfg_req.action = MPI3_CONFIG_ACTION_PAGE_HEADER;
+	cfg_req.page_type = MPI3_CONFIG_PAGETYPE_ENCLOSURE;
+	cfg_req.page_number = 0;
+	cfg_req.page_address = 0;
+
+	if (mpi3mr_process_cfg_req(mrioc, &cfg_req, NULL,
+	    MPI3MR_INTADMCMD_TIMEOUT, ioc_status, &cfg_hdr, sizeof(cfg_hdr))) {
+		ioc_err(mrioc, "enclosure page0 header read failed\n");
+		goto out_failed;
+	}
+	if (*ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		ioc_err(mrioc, "enclosure page0 header read failed with ioc_status(0x%04x)\n",
+		    *ioc_status);
+		goto out_failed;
+	}
+	cfg_req.action = MPI3_CONFIG_ACTION_READ_CURRENT;
+	page_address = ((form & MPI3_ENCLOS_PGAD_FORM_MASK) |
+	    (form_spec & MPI3_ENCLOS_PGAD_HANDLE_MASK));
+	cfg_req.page_address = cpu_to_le32(page_address);
+	if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
+	    MPI3MR_INTADMCMD_TIMEOUT, ioc_status, encl_pg0, pg_sz)) {
+		ioc_err(mrioc, "enclosure page0 read failed\n");
+		goto out_failed;
+	}
+	return 0;
+out_failed:
+	return -1;
+}
+
+
+/**
+ * mpi3mr_cfg_get_sas_io_unit_pg0 - Read current SASIOUnit page0
+ * @mrioc: Adapter instance reference
+ * @sas_io_unit_pg0: Pointer to return SAS IO Unit page 0
+ * @pg_sz: Size of the memory allocated to the page pointer
+ *
+ * This is handler for config page read for the SAS IO Unit
+ * page0. This routine checks ioc_status to decide whether the
+ * page read is success or not.
+ *
+ * Return: 0 on success, non-zero on failure.
+ */
+int mpi3mr_cfg_get_sas_io_unit_pg0(struct mpi3mr_ioc *mrioc,
+	struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0, u16 pg_sz)
+{
+	struct mpi3_config_page_header cfg_hdr;
+	struct mpi3_config_request cfg_req;
+	u16 ioc_status = 0;
+
+	memset(sas_io_unit_pg0, 0, pg_sz);
+	memset(&cfg_hdr, 0, sizeof(cfg_hdr));
+	memset(&cfg_req, 0, sizeof(cfg_req));
+
+	cfg_req.function = MPI3_FUNCTION_CONFIG;
+	cfg_req.action = MPI3_CONFIG_ACTION_PAGE_HEADER;
+	cfg_req.page_type = MPI3_CONFIG_PAGETYPE_SAS_IO_UNIT;
+	cfg_req.page_number = 0;
+	cfg_req.page_address = 0;
+
+	if (mpi3mr_process_cfg_req(mrioc, &cfg_req, NULL,
+	    MPI3MR_INTADMCMD_TIMEOUT, &ioc_status, &cfg_hdr, sizeof(cfg_hdr))) {
+		ioc_err(mrioc, "sas io unit page0 header read failed\n");
+		goto out_failed;
+	}
+	if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		ioc_err(mrioc, "sas io unit page0 header read failed with ioc_status(0x%04x)\n",
+		    ioc_status);
+		goto out_failed;
+	}
+	cfg_req.action = MPI3_CONFIG_ACTION_READ_CURRENT;
+
+	if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
+	    MPI3MR_INTADMCMD_TIMEOUT, &ioc_status, sas_io_unit_pg0, pg_sz)) {
+		ioc_err(mrioc, "sas io unit page0 read failed\n");
+		goto out_failed;
+	}
+	if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		ioc_err(mrioc, "sas io unit page0 read failed with ioc_status(0x%04x)\n",
+		    ioc_status);
+		goto out_failed;
+	}
+	return 0;
+out_failed:
+	return -1;
+}
+
+/**
+ * mpi3mr_cfg_get_sas_io_unit_pg1 - Read current SASIOUnit page1
+ * @mrioc: Adapter instance reference
+ * @sas_io_unit_pg1: Pointer to return SAS IO Unit page 1
+ * @pg_sz: Size of the memory allocated to the page pointer
+ *
+ * This is handler for config page read for the SAS IO Unit
+ * page1. This routine checks ioc_status to decide whether the
+ * page read is success or not.
+ *
+ * Return: 0 on success, non-zero on failure.
+ */
+int mpi3mr_cfg_get_sas_io_unit_pg1(struct mpi3mr_ioc *mrioc,
+	struct mpi3_sas_io_unit_page1 *sas_io_unit_pg1, u16 pg_sz)
+{
+	struct mpi3_config_page_header cfg_hdr;
+	struct mpi3_config_request cfg_req;
+	u16 ioc_status = 0;
+
+	memset(sas_io_unit_pg1, 0, pg_sz);
+	memset(&cfg_hdr, 0, sizeof(cfg_hdr));
+	memset(&cfg_req, 0, sizeof(cfg_req));
+
+	cfg_req.function = MPI3_FUNCTION_CONFIG;
+	cfg_req.action = MPI3_CONFIG_ACTION_PAGE_HEADER;
+	cfg_req.page_type = MPI3_CONFIG_PAGETYPE_SAS_IO_UNIT;
+	cfg_req.page_number = 1;
+	cfg_req.page_address = 0;
+
+	if (mpi3mr_process_cfg_req(mrioc, &cfg_req, NULL,
+	    MPI3MR_INTADMCMD_TIMEOUT, &ioc_status, &cfg_hdr, sizeof(cfg_hdr))) {
+		ioc_err(mrioc, "sas io unit page1 header read failed\n");
+		goto out_failed;
+	}
+	if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		ioc_err(mrioc, "sas io unit page1 header read failed with ioc_status(0x%04x)\n",
+		    ioc_status);
+		goto out_failed;
+	}
+	cfg_req.action = MPI3_CONFIG_ACTION_READ_CURRENT;
+
+	if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
+	    MPI3MR_INTADMCMD_TIMEOUT, &ioc_status, sas_io_unit_pg1, pg_sz)) {
+		ioc_err(mrioc, "sas io unit page1 read failed\n");
+		goto out_failed;
+	}
+	if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		ioc_err(mrioc, "sas io unit page1 read failed with ioc_status(0x%04x)\n",
+		    ioc_status);
+		goto out_failed;
+	}
+	return 0;
+out_failed:
+	return -1;
+}
+
+/**
+ * mpi3mr_cfg_set_sas_io_unit_pg1 - Write SASIOUnit page1
+ * @mrioc: Adapter instance reference
+ * @sas_io_unit_pg1: Pointer to the SAS IO Unit page 1 to write
+ * @pg_sz: Size of the memory allocated to the page pointer
+ *
+ * This is handler for config page write for the SAS IO Unit
+ * page1. This routine checks ioc_status to decide whether the
+ * page read is success or not. This will modify both current
+ * and persistent page.
+ *
+ * Return: 0 on success, non-zero on failure.
+ */
+int mpi3mr_cfg_set_sas_io_unit_pg1(struct mpi3mr_ioc *mrioc,
+	struct mpi3_sas_io_unit_page1 *sas_io_unit_pg1, u16 pg_sz)
+{
+	struct mpi3_config_page_header cfg_hdr;
+	struct mpi3_config_request cfg_req;
+	u16 ioc_status = 0;
+
+	memset(&cfg_hdr, 0, sizeof(cfg_hdr));
+	memset(&cfg_req, 0, sizeof(cfg_req));
+
+	cfg_req.function = MPI3_FUNCTION_CONFIG;
+	cfg_req.action = MPI3_CONFIG_ACTION_PAGE_HEADER;
+	cfg_req.page_type = MPI3_CONFIG_PAGETYPE_SAS_IO_UNIT;
+	cfg_req.page_number = 1;
+	cfg_req.page_address = 0;
+
+	if (mpi3mr_process_cfg_req(mrioc, &cfg_req, NULL,
+	    MPI3MR_INTADMCMD_TIMEOUT, &ioc_status, &cfg_hdr, sizeof(cfg_hdr))) {
+		ioc_err(mrioc, "sas io unit page1 header read failed\n");
+		goto out_failed;
+	}
+	if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		ioc_err(mrioc, "sas io unit page1 header read failed with ioc_status(0x%04x)\n",
+		    ioc_status);
+		goto out_failed;
+	}
+	cfg_req.action = MPI3_CONFIG_ACTION_WRITE_CURRENT;
+
+	if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
+	    MPI3MR_INTADMCMD_TIMEOUT, &ioc_status, sas_io_unit_pg1, pg_sz)) {
+		ioc_err(mrioc, "sas io unit page1 write current failed\n");
+		goto out_failed;
+	}
+	if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		ioc_err(mrioc, "sas io unit page1 write current failed with ioc_status(0x%04x)\n",
+		    ioc_status);
+		goto out_failed;
+	}
+
+	cfg_req.action = MPI3_CONFIG_ACTION_WRITE_PERSISTENT;
+
+	if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
+	    MPI3MR_INTADMCMD_TIMEOUT, &ioc_status, sas_io_unit_pg1, pg_sz)) {
+		ioc_err(mrioc, "sas io unit page1 write persistent failed\n");
+		goto out_failed;
+	}
+	if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		ioc_err(mrioc, "sas io unit page1 write persistent failed with ioc_status(0x%04x)\n",
+		    ioc_status);
+		goto out_failed;
+	}
+	return 0;
+out_failed:
+	return -1;
+}
+
+/**
+ * mpi3mr_cfg_get_driver_pg1 - Read current Driver page1
+ * @mrioc: Adapter instance reference
+ * @driver_pg1: Pointer to return Driver page 1
+ * @pg_sz: Size of the memory allocated to the page pointer
+ *
+ * This is handler for config page read for the Driver page1.
+ * This routine checks ioc_status to decide whether the page
+ * read is success or not.
+ *
+ * Return: 0 on success, non-zero on failure.
+ */
+int mpi3mr_cfg_get_driver_pg1(struct mpi3mr_ioc *mrioc,
+	struct mpi3_driver_page1 *driver_pg1, u16 pg_sz)
+{
+	struct mpi3_config_page_header cfg_hdr;
+	struct mpi3_config_request cfg_req;
+	u16 ioc_status = 0;
+
+	memset(driver_pg1, 0, pg_sz);
+	memset(&cfg_hdr, 0, sizeof(cfg_hdr));
+	memset(&cfg_req, 0, sizeof(cfg_req));
+
+	cfg_req.function = MPI3_FUNCTION_CONFIG;
+	cfg_req.action = MPI3_CONFIG_ACTION_PAGE_HEADER;
+	cfg_req.page_type = MPI3_CONFIG_PAGETYPE_DRIVER;
+	cfg_req.page_number = 1;
+	cfg_req.page_address = 0;
+
+	if (mpi3mr_process_cfg_req(mrioc, &cfg_req, NULL,
+	    MPI3MR_INTADMCMD_TIMEOUT, &ioc_status, &cfg_hdr, sizeof(cfg_hdr))) {
+		ioc_err(mrioc, "driver page1 header read failed\n");
+		goto out_failed;
+	}
+	if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		ioc_err(mrioc, "driver page1 header read failed with ioc_status(0x%04x)\n",
+		    ioc_status);
+		goto out_failed;
+	}
+	cfg_req.action = MPI3_CONFIG_ACTION_READ_CURRENT;
+
+	if (mpi3mr_process_cfg_req(mrioc, &cfg_req, &cfg_hdr,
+	    MPI3MR_INTADMCMD_TIMEOUT, &ioc_status, driver_pg1, pg_sz)) {
+		ioc_err(mrioc, "driver page1 read failed\n");
+		goto out_failed;
+	}
+	if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		ioc_err(mrioc, "driver page1 read failed with ioc_status(0x%04x)\n",
+		    ioc_status);
+		goto out_failed;
+	}
+	return 0;
+out_failed:
+	return -1;
+}
diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c
index 9681c8bf24ed..f77ee4051b00 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_os.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_os.c
@@ -40,6 +40,8 @@ static void mpi3mr_send_event_ack(struct mpi3mr_ioc *mrioc, u8 event,
 
 #define MPI3MR_DRIVER_EVENT_TG_QD_REDUCTION	(0xFFFF)
 
+#define MPI3_EVENT_WAIT_FOR_DEVICES_TO_REFRESH	(0xFFFE)
+
 /**
  * mpi3mr_host_tag_for_scmd - Get host tag for a scmd
  * @mrioc: Adapter instance reference
@@ -422,6 +424,8 @@ void mpi3mr_invalidate_devhandles(struct mpi3mr_ioc *mrioc)
 			tgt_priv->io_throttle_enabled = 0;
 			tgt_priv->io_divert = 0;
 			tgt_priv->throttle_group = NULL;
+			if (tgtdev->host_exposed)
+				atomic_set(&tgt_priv->block_io, 1);
 		}
 	}
 }
@@ -579,6 +583,39 @@ void mpi3mr_flush_host_io(struct mpi3mr_ioc *mrioc)
 }
 
 /**
+ * mpi3mr_flush_cmds_for_unrecovered_controller - Flush all pending cmds
+ * @mrioc: Adapter instance reference
+ *
+ * This function waits for currently running IO poll threads to
+ * exit and then flushes all host I/Os and any internal pending
+ * cmds. This is executed after controller is marked as
+ * unrecoverable.
+ *
+ * Return: Nothing.
+ */
+void mpi3mr_flush_cmds_for_unrecovered_controller(struct mpi3mr_ioc *mrioc)
+{
+	struct Scsi_Host *shost = mrioc->shost;
+	int i;
+
+	if (!mrioc->unrecoverable)
+		return;
+
+	if (mrioc->op_reply_qinfo) {
+		for (i = 0; i < mrioc->num_queues; i++) {
+			while (atomic_read(&mrioc->op_reply_qinfo[i].in_use))
+				udelay(500);
+			atomic_set(&mrioc->op_reply_qinfo[i].pend_ios, 0);
+		}
+	}
+	mrioc->flush_io_count = 0;
+	blk_mq_tagset_busy_iter(&shost->tag_set,
+	    mpi3mr_flush_scmd, (void *)mrioc);
+	mpi3mr_flush_delayed_cmd_lists(mrioc);
+	mpi3mr_flush_drv_cmds(mrioc);
+}
+
+/**
  * mpi3mr_alloc_tgtdev - target device allocator
  *
  * Allocate target device instance and initialize the reference
@@ -796,7 +833,7 @@ static void mpi3mr_set_io_divert_for_all_vd_in_tg(struct mpi3mr_ioc *mrioc,
  *
  * Return: None.
  */
-static void mpi3mr_print_device_event_notice(struct mpi3mr_ioc *mrioc,
+void mpi3mr_print_device_event_notice(struct mpi3mr_ioc *mrioc,
 	bool device_add)
 {
 	ioc_notice(mrioc, "Device %s was in progress before the reset and\n",
@@ -816,7 +853,7 @@ static void mpi3mr_print_device_event_notice(struct mpi3mr_ioc *mrioc,
  *
  * Return: 0 on success, non zero on failure.
  */
-static void mpi3mr_remove_tgtdev_from_host(struct mpi3mr_ioc *mrioc,
+void mpi3mr_remove_tgtdev_from_host(struct mpi3mr_ioc *mrioc,
 	struct mpi3mr_tgt_dev *tgtdev)
 {
 	struct mpi3mr_stgt_priv_data *tgt_priv;
@@ -825,22 +862,29 @@ static void mpi3mr_remove_tgtdev_from_host(struct mpi3mr_ioc *mrioc,
 	    __func__, tgtdev->dev_handle, (unsigned long long)tgtdev->wwid);
 	if (tgtdev->starget && tgtdev->starget->hostdata) {
 		tgt_priv = tgtdev->starget->hostdata;
+		atomic_set(&tgt_priv->block_io, 0);
 		tgt_priv->dev_handle = MPI3MR_INVALID_DEV_HANDLE;
 	}
 
-	if (tgtdev->starget) {
-		if (mrioc->current_event)
-			mrioc->current_event->pending_at_sml = 1;
-		scsi_remove_target(&tgtdev->starget->dev);
-		tgtdev->host_exposed = 0;
-		if (mrioc->current_event) {
-			mrioc->current_event->pending_at_sml = 0;
-			if (mrioc->current_event->discard) {
-				mpi3mr_print_device_event_notice(mrioc, false);
-				return;
+	if (!mrioc->sas_transport_enabled || (tgtdev->dev_type !=
+	    MPI3_DEVICE_DEVFORM_SAS_SATA) || tgtdev->non_stl) {
+		if (tgtdev->starget) {
+			if (mrioc->current_event)
+				mrioc->current_event->pending_at_sml = 1;
+			scsi_remove_target(&tgtdev->starget->dev);
+			tgtdev->host_exposed = 0;
+			if (mrioc->current_event) {
+				mrioc->current_event->pending_at_sml = 0;
+				if (mrioc->current_event->discard) {
+					mpi3mr_print_device_event_notice(mrioc,
+					    false);
+					return;
+				}
 			}
 		}
-	}
+	} else
+		mpi3mr_remove_tgtdev_from_sas_transport(mrioc, tgtdev);
+
 	ioc_info(mrioc, "%s :Removed handle(0x%04x), wwid(0x%016llx)\n",
 	    __func__, tgtdev->dev_handle, (unsigned long long)tgtdev->wwid);
 }
@@ -862,21 +906,25 @@ static int mpi3mr_report_tgtdev_to_host(struct mpi3mr_ioc *mrioc,
 	int retval = 0;
 	struct mpi3mr_tgt_dev *tgtdev;
 
+	if (mrioc->reset_in_progress)
+		return -1;
+
 	tgtdev = mpi3mr_get_tgtdev_by_perst_id(mrioc, perst_id);
 	if (!tgtdev) {
 		retval = -1;
 		goto out;
 	}
-	if (tgtdev->is_hidden) {
+	if (tgtdev->is_hidden || tgtdev->host_exposed) {
 		retval = -1;
 		goto out;
 	}
-	if (!tgtdev->host_exposed && !mrioc->reset_in_progress) {
+	if (!mrioc->sas_transport_enabled || (tgtdev->dev_type !=
+	    MPI3_DEVICE_DEVFORM_SAS_SATA) || tgtdev->non_stl){
 		tgtdev->host_exposed = 1;
 		if (mrioc->current_event)
 			mrioc->current_event->pending_at_sml = 1;
-		scsi_scan_target(&mrioc->shost->shost_gendev, 0,
-		    tgtdev->perst_id,
+		scsi_scan_target(&mrioc->shost->shost_gendev,
+		    mrioc->scsi_device_channel, tgtdev->perst_id,
 		    SCAN_WILD_CARD, SCSI_SCAN_INITIAL);
 		if (!tgtdev->starget)
 			tgtdev->host_exposed = 0;
@@ -887,7 +935,8 @@ static int mpi3mr_report_tgtdev_to_host(struct mpi3mr_ioc *mrioc,
 				goto out;
 			}
 		}
-	}
+	} else
+		mpi3mr_report_tgtdev_to_sas_transport(mrioc, tgtdev);
 out:
 	if (tgtdev)
 		mpi3mr_tgtdev_put(tgtdev);
@@ -1018,18 +1067,29 @@ static void mpi3mr_update_tgtdev(struct mpi3mr_ioc *mrioc,
 {
 	u16 flags = 0;
 	struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data = NULL;
+	struct mpi3mr_enclosure_node *enclosure_dev = NULL;
 	u8 prot_mask = 0;
 
 	tgtdev->perst_id = le16_to_cpu(dev_pg0->persistent_id);
 	tgtdev->dev_handle = le16_to_cpu(dev_pg0->dev_handle);
 	tgtdev->dev_type = dev_pg0->device_form;
+	tgtdev->io_unit_port = dev_pg0->io_unit_port;
 	tgtdev->encl_handle = le16_to_cpu(dev_pg0->enclosure_handle);
 	tgtdev->parent_handle = le16_to_cpu(dev_pg0->parent_dev_handle);
 	tgtdev->slot = le16_to_cpu(dev_pg0->slot);
 	tgtdev->q_depth = le16_to_cpu(dev_pg0->queue_depth);
 	tgtdev->wwid = le64_to_cpu(dev_pg0->wwid);
+	tgtdev->devpg0_flag = le16_to_cpu(dev_pg0->flags);
+
+	if (tgtdev->encl_handle)
+		enclosure_dev = mpi3mr_enclosure_find_by_handle(mrioc,
+		    tgtdev->encl_handle);
+	if (enclosure_dev)
+		tgtdev->enclosure_logical_id = le64_to_cpu(
+		    enclosure_dev->pg0.enclosure_logical_id);
+
+	flags = tgtdev->devpg0_flag;
 
-	flags = le16_to_cpu(dev_pg0->flags);
 	tgtdev->is_hidden = (flags & MPI3_DEVICE0_FLAGS_HIDDEN);
 
 	if (is_added == true)
@@ -1045,6 +1105,8 @@ static void mpi3mr_update_tgtdev(struct mpi3mr_ioc *mrioc,
 		scsi_tgt_priv_data->dev_type = tgtdev->dev_type;
 		scsi_tgt_priv_data->io_throttle_enabled =
 		    tgtdev->io_throttle_enabled;
+		if (is_added == true)
+			atomic_set(&scsi_tgt_priv_data->block_io, 0);
 	}
 
 	switch (dev_pg0->access_status) {
@@ -1068,12 +1130,25 @@ static void mpi3mr_update_tgtdev(struct mpi3mr_ioc *mrioc,
 		tgtdev->dev_spec.sas_sata_inf.dev_info = dev_info;
 		tgtdev->dev_spec.sas_sata_inf.sas_address =
 		    le64_to_cpu(sasinf->sas_address);
+		tgtdev->dev_spec.sas_sata_inf.phy_id = sasinf->phy_num;
+		tgtdev->dev_spec.sas_sata_inf.attached_phy_id =
+		    sasinf->attached_phy_identifier;
 		if ((dev_info & MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_MASK) !=
 		    MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_END_DEVICE)
 			tgtdev->is_hidden = 1;
 		else if (!(dev_info & (MPI3_SAS_DEVICE_INFO_STP_SATA_TARGET |
 		    MPI3_SAS_DEVICE_INFO_SSP_TARGET)))
 			tgtdev->is_hidden = 1;
+
+		if (((tgtdev->devpg0_flag &
+		    MPI3_DEVICE0_FLAGS_ATT_METHOD_DIR_ATTACHED)
+		    && (tgtdev->devpg0_flag &
+		    MPI3_DEVICE0_FLAGS_ATT_METHOD_VIRTUAL)) ||
+		    (tgtdev->parent_handle == 0xFFFF))
+			tgtdev->non_stl = 1;
+		if (tgtdev->dev_spec.sas_sata_inf.hba_port)
+			tgtdev->dev_spec.sas_sata_inf.hba_port->port_id =
+			    dev_pg0->io_unit_port;
 		break;
 	}
 	case MPI3_DEVICE_DEVFORM_PCIE:
@@ -1106,6 +1181,7 @@ static void mpi3mr_update_tgtdev(struct mpi3mr_ioc *mrioc,
 		    ((dev_info & MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_MASK) !=
 		    MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_SCSI_DEVICE))
 			tgtdev->is_hidden = 1;
+		tgtdev->non_stl = 1;
 		if (!mrioc->shost)
 			break;
 		prot_mask = scsi_host_get_prot(mrioc->shost);
@@ -1129,6 +1205,7 @@ static void mpi3mr_update_tgtdev(struct mpi3mr_ioc *mrioc,
 		tgtdev->dev_spec.vd_inf.state = vdinf->vd_state;
 		if (vdinf->vd_state == MPI3_DEVICE0_VD_STATE_OFFLINE)
 			tgtdev->is_hidden = 1;
+		tgtdev->non_stl = 1;
 		tgtdev->dev_spec.vd_inf.tg_id = vdinf_io_throttle_group;
 		tgtdev->dev_spec.vd_inf.tg_high =
 		    le16_to_cpu(vdinf->io_throttle_group_high) * 2048;
@@ -1258,6 +1335,135 @@ out:
 }
 
 /**
+ * mpi3mr_free_enclosure_list - release enclosures
+ * @mrioc: Adapter instance reference
+ *
+ * Free memory allocated during encloure add.
+ *
+ * Return nothing.
+ */
+void mpi3mr_free_enclosure_list(struct mpi3mr_ioc *mrioc)
+{
+	struct mpi3mr_enclosure_node *enclosure_dev, *enclosure_dev_next;
+
+	list_for_each_entry_safe(enclosure_dev,
+	    enclosure_dev_next, &mrioc->enclosure_list, list) {
+		list_del(&enclosure_dev->list);
+		kfree(enclosure_dev);
+	}
+}
+
+/**
+ * mpi3mr_enclosure_find_by_handle - enclosure search by handle
+ * @mrioc: Adapter instance reference
+ * @handle: Firmware device handle of the enclosure
+ *
+ * This searches for enclosure device based on handle, then returns the
+ * enclosure object.
+ *
+ * Return: Enclosure object reference or NULL
+ */
+struct mpi3mr_enclosure_node *mpi3mr_enclosure_find_by_handle(
+	struct mpi3mr_ioc *mrioc, u16 handle)
+{
+	struct mpi3mr_enclosure_node *enclosure_dev, *r = NULL;
+
+	list_for_each_entry(enclosure_dev, &mrioc->enclosure_list, list) {
+		if (le16_to_cpu(enclosure_dev->pg0.enclosure_handle) != handle)
+			continue;
+		r = enclosure_dev;
+		goto out;
+	}
+out:
+	return r;
+}
+
+/**
+ * mpi3mr_encldev_add_chg_evt_debug - debug for enclosure event
+ * @mrioc: Adapter instance reference
+ * @encl_pg0: Enclosure page 0.
+ * @is_added: Added event or not
+ *
+ * Return nothing.
+ */
+static void mpi3mr_encldev_add_chg_evt_debug(struct mpi3mr_ioc *mrioc,
+	struct mpi3_enclosure_page0 *encl_pg0, u8 is_added)
+{
+	char *reason_str = NULL;
+
+	if (!(mrioc->logging_level & MPI3_DEBUG_EVENT_WORK_TASK))
+		return;
+
+	if (is_added)
+		reason_str = "enclosure added";
+	else
+		reason_str = "enclosure dev status changed";
+
+	ioc_info(mrioc,
+	    "%s: handle(0x%04x), enclosure logical id(0x%016llx)\n",
+	    reason_str, le16_to_cpu(encl_pg0->enclosure_handle),
+	    (unsigned long long)le64_to_cpu(encl_pg0->enclosure_logical_id));
+	ioc_info(mrioc,
+	    "number of slots(%d), port(%d), flags(0x%04x), present(%d)\n",
+	    le16_to_cpu(encl_pg0->num_slots), encl_pg0->io_unit_port,
+	    le16_to_cpu(encl_pg0->flags),
+	    ((le16_to_cpu(encl_pg0->flags) &
+	      MPI3_ENCLS0_FLAGS_ENCL_DEV_PRESENT_MASK) >> 4));
+}
+
+/**
+ * mpi3mr_encldev_add_chg_evt_bh - Enclosure evt bottomhalf
+ * @mrioc: Adapter instance reference
+ * @fwevt: Firmware event reference
+ *
+ * Prints information about the Enclosure device status or
+ * Enclosure add events if logging is enabled and add or remove
+ * the enclosure from the controller's internal list of
+ * enclosures.
+ *
+ * Return: Nothing.
+ */
+static void mpi3mr_encldev_add_chg_evt_bh(struct mpi3mr_ioc *mrioc,
+	struct mpi3mr_fwevt *fwevt)
+{
+	struct mpi3mr_enclosure_node *enclosure_dev = NULL;
+	struct mpi3_enclosure_page0 *encl_pg0;
+	u16 encl_handle;
+	u8 added, present;
+
+	encl_pg0 = (struct mpi3_enclosure_page0 *) fwevt->event_data;
+	added = (fwevt->event_id == MPI3_EVENT_ENCL_DEVICE_ADDED) ? 1 : 0;
+	mpi3mr_encldev_add_chg_evt_debug(mrioc, encl_pg0, added);
+
+
+	encl_handle = le16_to_cpu(encl_pg0->enclosure_handle);
+	present = ((le16_to_cpu(encl_pg0->flags) &
+	      MPI3_ENCLS0_FLAGS_ENCL_DEV_PRESENT_MASK) >> 4);
+
+	if (encl_handle)
+		enclosure_dev = mpi3mr_enclosure_find_by_handle(mrioc,
+		    encl_handle);
+	if (!enclosure_dev && present) {
+		enclosure_dev =
+			kzalloc(sizeof(struct mpi3mr_enclosure_node),
+			    GFP_KERNEL);
+		if (!enclosure_dev)
+			return;
+		list_add_tail(&enclosure_dev->list,
+		    &mrioc->enclosure_list);
+	}
+	if (enclosure_dev) {
+		if (!present) {
+			list_del(&enclosure_dev->list);
+			kfree(enclosure_dev);
+		} else
+			memcpy(&enclosure_dev->pg0, encl_pg0,
+			    sizeof(enclosure_dev->pg0));
+
+	}
+}
+
+/**
  * mpi3mr_sastopochg_evt_debug - SASTopoChange details
  * @mrioc: Adapter instance reference
  * @event_data: SAS topology change list event data
@@ -1296,8 +1502,9 @@ mpi3mr_sastopochg_evt_debug(struct mpi3mr_ioc *mrioc,
 	ioc_info(mrioc, "%s :sas topology change: (%s)\n",
 	    __func__, status_str);
 	ioc_info(mrioc,
-	    "%s :\texpander_handle(0x%04x), enclosure_handle(0x%04x) start_phy(%02d), num_entries(%d)\n",
+	    "%s :\texpander_handle(0x%04x), port(%d), enclosure_handle(0x%04x) start_phy(%02d), num_entries(%d)\n",
 	    __func__, le16_to_cpu(event_data->expander_dev_handle),
+	    event_data->io_unit_port,
 	    le16_to_cpu(event_data->enclosure_handle),
 	    event_data->start_phy_num, event_data->num_entries);
 	for (i = 0; i < event_data->num_entries; i++) {
@@ -1355,9 +1562,30 @@ static void mpi3mr_sastopochg_evt_bh(struct mpi3mr_ioc *mrioc,
 	int i;
 	u16 handle;
 	u8 reason_code;
+	u64 exp_sas_address = 0, parent_sas_address = 0;
+	struct mpi3mr_hba_port *hba_port = NULL;
 	struct mpi3mr_tgt_dev *tgtdev = NULL;
+	struct mpi3mr_sas_node *sas_expander = NULL;
+	unsigned long flags;
+	u8 link_rate, prev_link_rate, parent_phy_number;
 
 	mpi3mr_sastopochg_evt_debug(mrioc, event_data);
+	if (mrioc->sas_transport_enabled) {
+		hba_port = mpi3mr_get_hba_port_by_id(mrioc,
+		    event_data->io_unit_port);
+		if (le16_to_cpu(event_data->expander_dev_handle)) {
+			spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+			sas_expander = __mpi3mr_expander_find_by_handle(mrioc,
+			    le16_to_cpu(event_data->expander_dev_handle));
+			if (sas_expander) {
+				exp_sas_address = sas_expander->sas_address;
+				hba_port = sas_expander->hba_port;
+			}
+			spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+			parent_sas_address = exp_sas_address;
+		} else
+			parent_sas_address = mrioc->sas_hba.sas_address;
+	}
 
 	for (i = 0; i < event_data->num_entries; i++) {
 		if (fwevt->discard)
@@ -1379,12 +1607,37 @@ static void mpi3mr_sastopochg_evt_bh(struct mpi3mr_ioc *mrioc,
 			mpi3mr_tgtdev_del_from_list(mrioc, tgtdev);
 			mpi3mr_tgtdev_put(tgtdev);
 			break;
+		case MPI3_EVENT_SAS_TOPO_PHY_RC_RESPONDING:
+		case MPI3_EVENT_SAS_TOPO_PHY_RC_PHY_CHANGED:
+		case MPI3_EVENT_SAS_TOPO_PHY_RC_NO_CHANGE:
+		{
+			if (!mrioc->sas_transport_enabled || tgtdev->non_stl
+			    || tgtdev->is_hidden)
+				break;
+			link_rate = event_data->phy_entry[i].link_rate >> 4;
+			prev_link_rate = event_data->phy_entry[i].link_rate & 0xF;
+			if (link_rate == prev_link_rate)
+				break;
+			if (!parent_sas_address)
+				break;
+			parent_phy_number = event_data->start_phy_num + i;
+			mpi3mr_update_links(mrioc, parent_sas_address, handle,
+			    parent_phy_number, link_rate, hba_port);
+			break;
+		}
 		default:
 			break;
 		}
 		if (tgtdev)
 			mpi3mr_tgtdev_put(tgtdev);
 	}
+
+	if (mrioc->sas_transport_enabled && (event_data->exp_status ==
+	    MPI3_EVENT_SAS_TOPO_ES_NOT_RESPONDING)) {
+		if (sas_expander)
+			mpi3mr_expander_remove(mrioc, exp_sas_address,
+			    hba_port);
+	}
 }
 
 /**
@@ -1604,28 +1857,54 @@ static void mpi3mr_set_qd_for_all_vd_in_tg(struct mpi3mr_ioc *mrioc,
 static void mpi3mr_fwevt_bh(struct mpi3mr_ioc *mrioc,
 	struct mpi3mr_fwevt *fwevt)
 {
+	struct mpi3_device_page0 *dev_pg0 = NULL;
+	u16 perst_id, handle, dev_info;
+	struct mpi3_device0_sas_sata_format *sasinf = NULL;
+
 	mpi3mr_fwevt_del_from_list(mrioc, fwevt);
 	mrioc->current_event = fwevt;
 
 	if (mrioc->stop_drv_processing)
 		goto out;
 
+	if (mrioc->unrecoverable) {
+		dprint_event_bh(mrioc,
+		    "ignoring event(0x%02x) in bottom half handler due to unrecoverable controller\n",
+		    fwevt->event_id);
+		goto out;
+	}
+
 	if (!fwevt->process_evt)
 		goto evt_ack;
 
 	switch (fwevt->event_id) {
 	case MPI3_EVENT_DEVICE_ADDED:
 	{
-		struct mpi3_device_page0 *dev_pg0 =
-		    (struct mpi3_device_page0 *)fwevt->event_data;
-		mpi3mr_report_tgtdev_to_host(mrioc,
-		    le16_to_cpu(dev_pg0->persistent_id));
+		dev_pg0 = (struct mpi3_device_page0 *)fwevt->event_data;
+		perst_id = le16_to_cpu(dev_pg0->persistent_id);
+		handle = le16_to_cpu(dev_pg0->dev_handle);
+		if (perst_id != MPI3_DEVICE0_PERSISTENTID_INVALID)
+			mpi3mr_report_tgtdev_to_host(mrioc, perst_id);
+		else if (mrioc->sas_transport_enabled &&
+		    (dev_pg0->device_form == MPI3_DEVICE_DEVFORM_SAS_SATA)) {
+			sasinf = &dev_pg0->device_specific.sas_sata_format;
+			dev_info = le16_to_cpu(sasinf->device_info);
+			if (!mrioc->sas_hba.num_phys)
+				mpi3mr_sas_host_add(mrioc);
+			else
+				mpi3mr_sas_host_refresh(mrioc);
+
+			if (mpi3mr_is_expander_device(dev_info))
+				mpi3mr_expander_add(mrioc, handle);
+		}
 		break;
 	}
 	case MPI3_EVENT_DEVICE_INFO_CHANGED:
 	{
-		mpi3mr_devinfochg_evt_bh(mrioc,
-		    (struct mpi3_device_page0 *)fwevt->event_data);
+		dev_pg0 = (struct mpi3_device_page0 *)fwevt->event_data;
+		perst_id = le16_to_cpu(dev_pg0->persistent_id);
+		if (perst_id != MPI3_DEVICE0_PERSISTENTID_INVALID)
+			mpi3mr_devinfochg_evt_bh(mrioc, dev_pg0);
 		break;
 	}
 	case MPI3_EVENT_DEVICE_STATUS_CHANGE:
@@ -1633,6 +1912,13 @@ static void mpi3mr_fwevt_bh(struct mpi3mr_ioc *mrioc,
 		mpi3mr_devstatuschg_evt_bh(mrioc, fwevt);
 		break;
 	}
+	case MPI3_EVENT_ENCL_DEVICE_ADDED:
+	case MPI3_EVENT_ENCL_DEVICE_STATUS_CHANGE:
+	{
+		mpi3mr_encldev_add_chg_evt_bh(mrioc, fwevt);
+		break;
+	}
+
 	case MPI3_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
 	{
 		mpi3mr_sastopochg_evt_bh(mrioc, fwevt);
@@ -1662,6 +1948,22 @@ static void mpi3mr_fwevt_bh(struct mpi3mr_ioc *mrioc,
 		}
 		break;
 	}
+	case MPI3_EVENT_WAIT_FOR_DEVICES_TO_REFRESH:
+	{
+		while (mrioc->device_refresh_on)
+			msleep(500);
+
+		dprint_event_bh(mrioc,
+		    "scan for non responding and newly added devices after soft reset started\n");
+		if (mrioc->sas_transport_enabled) {
+			mpi3mr_refresh_sas_ports(mrioc);
+			mpi3mr_refresh_expanders(mrioc);
+		}
+		mpi3mr_rfresh_tgtdevs(mrioc);
+		ioc_info(mrioc,
+		    "scan for non responding and newly added devices after soft reset completed\n");
+		break;
+	}
 	default:
 		break;
 	}
@@ -1716,6 +2018,9 @@ static int mpi3mr_create_tgtdev(struct mpi3mr_ioc *mrioc,
 	u16 perst_id = 0;
 
 	perst_id = le16_to_cpu(dev_pg0->persistent_id);
+	if (perst_id == MPI3_DEVICE0_PERSISTENTID_INVALID)
+		return retval;
+
 	tgtdev = mpi3mr_get_tgtdev_by_perst_id(mrioc, perst_id);
 	if (tgtdev) {
 		mpi3mr_update_tgtdev(mrioc, tgtdev, dev_pg0, true);
@@ -2429,6 +2734,35 @@ static void mpi3mr_cablemgmt_evt_th(struct mpi3mr_ioc *mrioc,
 }
 
 /**
+ * mpi3mr_add_event_wait_for_device_refresh - Add Wait for Device Refresh Event
+ * @mrioc: Adapter instance reference
+ *
+ * Add driver specific event to make sure that the driver won't process the
+ * events until all the devices are refreshed during soft reset.
+ *
+ * Return: Nothing
+ */
+void mpi3mr_add_event_wait_for_device_refresh(struct mpi3mr_ioc *mrioc)
+{
+	struct mpi3mr_fwevt *fwevt = NULL;
+
+	fwevt = mpi3mr_alloc_fwevt(0);
+	if (!fwevt) {
+		dprint_event_th(mrioc,
+		    "failed to schedule bottom half handler for event(0x%02x)\n",
+		    MPI3_EVENT_WAIT_FOR_DEVICES_TO_REFRESH);
+		return;
+	}
+	fwevt->mrioc = mrioc;
+	fwevt->event_id = MPI3_EVENT_WAIT_FOR_DEVICES_TO_REFRESH;
+	fwevt->send_ack = 0;
+	fwevt->process_evt = 1;
+	fwevt->evt_ctx = 0;
+	fwevt->event_data_size = 0;
+	mpi3mr_fwevt_add_to_list(mrioc, fwevt);
+}
+
+/**
  * mpi3mr_os_handle_events - Firmware event handler
  * @mrioc: Adapter instance reference
  * @event_reply: event data
@@ -2494,6 +2828,8 @@ void mpi3mr_os_handle_events(struct mpi3mr_ioc *mrioc,
 	}
 	case MPI3_EVENT_DEVICE_INFO_CHANGED:
 	case MPI3_EVENT_LOG_DATA:
+	case MPI3_EVENT_ENCL_DEVICE_STATUS_CHANGE:
+	case MPI3_EVENT_ENCL_DEVICE_ADDED:
 	{
 		process_evt_bh = 1;
 		break;
@@ -2508,7 +2844,6 @@ void mpi3mr_os_handle_events(struct mpi3mr_ioc *mrioc,
 		mpi3mr_cablemgmt_evt_th(mrioc, event_reply);
 		break;
 	}
-	case MPI3_EVENT_ENCL_DEVICE_STATUS_CHANGE:
 	case MPI3_EVENT_SAS_DISCOVERY:
 	case MPI3_EVENT_SAS_DEVICE_DISCOVERY_ERROR:
 	case MPI3_EVENT_SAS_BROADCAST_PRIMITIVE:
@@ -3849,9 +4184,10 @@ static void mpi3mr_slave_destroy(struct scsi_device *sdev)
 	struct Scsi_Host *shost;
 	struct mpi3mr_ioc *mrioc;
 	struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data;
-	struct mpi3mr_tgt_dev *tgt_dev;
+	struct mpi3mr_tgt_dev *tgt_dev = NULL;
 	unsigned long flags;
 	struct scsi_target *starget;
+	struct sas_rphy *rphy = NULL;
 
 	if (!sdev->hostdata)
 		return;
@@ -3864,7 +4200,14 @@ static void mpi3mr_slave_destroy(struct scsi_device *sdev)
 	scsi_tgt_priv_data->num_luns--;
 
 	spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
-	tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id);
+	if (starget->channel == mrioc->scsi_device_channel)
+		tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id);
+	else if (mrioc->sas_transport_enabled && !starget->channel) {
+		rphy = dev_to_rphy(starget->dev.parent);
+		tgt_dev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
+		    rphy->identify.sas_address, rphy);
+	}
+
 	if (tgt_dev && (!scsi_tgt_priv_data->num_luns))
 		tgt_dev->starget = NULL;
 	if (tgt_dev)
@@ -3929,16 +4272,23 @@ static int mpi3mr_slave_configure(struct scsi_device *sdev)
 	struct scsi_target *starget;
 	struct Scsi_Host *shost;
 	struct mpi3mr_ioc *mrioc;
-	struct mpi3mr_tgt_dev *tgt_dev;
+	struct mpi3mr_tgt_dev *tgt_dev = NULL;
 	unsigned long flags;
 	int retval = 0;
+	struct sas_rphy *rphy = NULL;
 
 	starget = scsi_target(sdev);
 	shost = dev_to_shost(&starget->dev);
 	mrioc = shost_priv(shost);
 
 	spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
-	tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id);
+	if (starget->channel == mrioc->scsi_device_channel)
+		tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id);
+	else if (mrioc->sas_transport_enabled && !starget->channel) {
+		rphy = dev_to_rphy(starget->dev.parent);
+		tgt_dev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
+		    rphy->identify.sas_address, rphy);
+	}
 	spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
 	if (!tgt_dev)
 		return -ENXIO;
@@ -3986,11 +4336,12 @@ static int mpi3mr_slave_alloc(struct scsi_device *sdev)
 	struct Scsi_Host *shost;
 	struct mpi3mr_ioc *mrioc;
 	struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data;
-	struct mpi3mr_tgt_dev *tgt_dev;
+	struct mpi3mr_tgt_dev *tgt_dev = NULL;
 	struct mpi3mr_sdev_priv_data *scsi_dev_priv_data;
 	unsigned long flags;
 	struct scsi_target *starget;
 	int retval = 0;
+	struct sas_rphy *rphy = NULL;
 
 	starget = scsi_target(sdev);
 	shost = dev_to_shost(&starget->dev);
@@ -3998,7 +4349,14 @@ static int mpi3mr_slave_alloc(struct scsi_device *sdev)
 	scsi_tgt_priv_data = starget->hostdata;
 
 	spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
-	tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id);
+
+	if (starget->channel == mrioc->scsi_device_channel)
+		tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id);
+	else if (mrioc->sas_transport_enabled && !starget->channel) {
+		rphy = dev_to_rphy(starget->dev.parent);
+		tgt_dev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
+		    rphy->identify.sas_address, rphy);
+	}
 
 	if (tgt_dev) {
 		if (tgt_dev->starget == NULL)
@@ -4041,6 +4399,8 @@ static int mpi3mr_target_alloc(struct scsi_target *starget)
 	struct mpi3mr_tgt_dev *tgt_dev;
 	unsigned long flags;
 	int retval = 0;
+	struct sas_rphy *rphy = NULL;
+	bool update_stgt_priv_data = false;
 
 	scsi_tgt_priv_data = kzalloc(sizeof(*scsi_tgt_priv_data), GFP_KERNEL);
 	if (!scsi_tgt_priv_data)
@@ -4049,8 +4409,25 @@ static int mpi3mr_target_alloc(struct scsi_target *starget)
 	starget->hostdata = scsi_tgt_priv_data;
 
 	spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
-	tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id);
-	if (tgt_dev && !tgt_dev->is_hidden) {
+
+	if (starget->channel == mrioc->scsi_device_channel) {
+		tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id);
+		if (tgt_dev && !tgt_dev->is_hidden)
+			update_stgt_priv_data = true;
+		else
+			retval = -ENXIO;
+	} else if (mrioc->sas_transport_enabled && !starget->channel) {
+		rphy = dev_to_rphy(starget->dev.parent);
+		tgt_dev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
+		    rphy->identify.sas_address, rphy);
+		if (tgt_dev && !tgt_dev->is_hidden && !tgt_dev->non_stl &&
+		    (tgt_dev->dev_type == MPI3_DEVICE_DEVFORM_SAS_SATA))
+			update_stgt_priv_data = true;
+		else
+			retval = -ENXIO;
+	}
+
+	if (update_stgt_priv_data) {
 		scsi_tgt_priv_data->starget = starget;
 		scsi_tgt_priv_data->dev_handle = tgt_dev->dev_handle;
 		scsi_tgt_priv_data->perst_id = tgt_dev->perst_id;
@@ -4064,8 +4441,7 @@ static int mpi3mr_target_alloc(struct scsi_target *starget)
 		if (tgt_dev->dev_type == MPI3_DEVICE_DEVFORM_VD)
 			scsi_tgt_priv_data->throttle_group =
 			    tgt_dev->dev_spec.vd_inf.tg;
-	} else
-		retval = -ENXIO;
+	}
 	spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
 
 	return retval;
@@ -4254,6 +4630,16 @@ static int mpi3mr_qcmd(struct Scsi_Host *shost,
 
 	stgt_priv_data = sdev_priv_data->tgt_priv_data;
 
+	if (atomic_read(&stgt_priv_data->block_io)) {
+		if (mrioc->stop_drv_processing) {
+			scmd->result = DID_NO_CONNECT << 16;
+			scsi_done(scmd);
+			goto out;
+		}
+		retval = SCSI_MLQUEUE_DEVICE_BUSY;
+		goto out;
+	}
+
 	dev_handle = stgt_priv_data->dev_handle;
 	if (dev_handle == MPI3MR_INVALID_DEV_HANDLE) {
 		scmd->result = DID_NO_CONNECT << 16;
@@ -4266,16 +4652,6 @@ static int mpi3mr_qcmd(struct Scsi_Host *shost,
 		goto out;
 	}
 
-	if (atomic_read(&stgt_priv_data->block_io)) {
-		if (mrioc->stop_drv_processing) {
-			scmd->result = DID_NO_CONNECT << 16;
-			scsi_done(scmd);
-			goto out;
-		}
-		retval = SCSI_MLQUEUE_DEVICE_BUSY;
-		goto out;
-	}
-
 	if (stgt_priv_data->dev_type == MPI3_DEVICE_DEVFORM_PCIE)
 		is_pcie_dev = 1;
 	if ((scmd->cmnd[0] == UNMAP) && is_pcie_dev &&
@@ -4553,16 +4929,23 @@ mpi3mr_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	spin_lock_init(&mrioc->tgtdev_lock);
 	spin_lock_init(&mrioc->watchdog_lock);
 	spin_lock_init(&mrioc->chain_buf_lock);
+	spin_lock_init(&mrioc->sas_node_lock);
 
 	INIT_LIST_HEAD(&mrioc->fwevt_list);
 	INIT_LIST_HEAD(&mrioc->tgtdev_list);
 	INIT_LIST_HEAD(&mrioc->delayed_rmhs_list);
 	INIT_LIST_HEAD(&mrioc->delayed_evtack_cmds_list);
+	INIT_LIST_HEAD(&mrioc->sas_expander_list);
+	INIT_LIST_HEAD(&mrioc->hba_port_table_list);
+	INIT_LIST_HEAD(&mrioc->enclosure_list);
 
 	mutex_init(&mrioc->reset_mutex);
 	mpi3mr_init_drv_cmd(&mrioc->init_cmds, MPI3MR_HOSTTAG_INITCMDS);
 	mpi3mr_init_drv_cmd(&mrioc->host_tm_cmds, MPI3MR_HOSTTAG_BLK_TMS);
 	mpi3mr_init_drv_cmd(&mrioc->bsg_cmds, MPI3MR_HOSTTAG_BSG_CMDS);
+	mpi3mr_init_drv_cmd(&mrioc->cfg_cmds, MPI3MR_HOSTTAG_CFG_CMDS);
+	mpi3mr_init_drv_cmd(&mrioc->transport_cmds,
+	    MPI3MR_HOSTTAG_TRANSPORT_CMDS);
 
 	for (i = 0; i < MPI3MR_NUM_DEVRMCMD; i++)
 		mpi3mr_init_drv_cmd(&mrioc->dev_rmhs_cmds[i],
@@ -4697,6 +5080,11 @@ static void mpi3mr_remove(struct pci_dev *pdev)
 	while (mrioc->reset_in_progress || mrioc->is_driver_loading)
 		ssleep(1);
 
+	if (!pci_device_is_present(mrioc->pdev)) {
+		mrioc->unrecoverable = 1;
+		mpi3mr_flush_cmds_for_unrecovered_controller(mrioc);
+	}
+
 	mpi3mr_bsg_exit(mrioc);
 	mrioc->stop_drv_processing = 1;
 	mpi3mr_cleanup_fwevt_list(mrioc);
@@ -4706,7 +5094,11 @@ static void mpi3mr_remove(struct pci_dev *pdev)
 	spin_unlock_irqrestore(&mrioc->fwevt_lock, flags);
 	if (wq)
 		destroy_workqueue(wq);
-	scsi_remove_host(shost);
+
+	if (mrioc->sas_transport_enabled)
+		sas_remove_host(shost);
+	else
+		scsi_remove_host(shost);
 
 	list_for_each_entry_safe(tgtdev, tgtdev_next, &mrioc->tgtdev_list,
 	    list) {
@@ -4763,22 +5155,21 @@ static void mpi3mr_shutdown(struct pci_dev *pdev)
 	mpi3mr_cleanup_resources(mrioc);
 }
 
-#ifdef CONFIG_PM
 /**
  * mpi3mr_suspend - PCI power management suspend callback
- * @pdev: PCI device instance
- * @state: New power state
+ * @dev: Device struct
  *
  * Change the power state to the given value and cleanup the IOC
  * by issuing MUR and shutdown notification
  *
  * Return: 0 always.
  */
-static int mpi3mr_suspend(struct pci_dev *pdev, pm_message_t state)
+static int __maybe_unused
+mpi3mr_suspend(struct device *dev)
 {
+	struct pci_dev *pdev = to_pci_dev(dev);
 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
 	struct mpi3mr_ioc *mrioc;
-	pci_power_t device_state;
 
 	if (!shost)
 		return 0;
@@ -4792,27 +5183,26 @@ static int mpi3mr_suspend(struct pci_dev *pdev, pm_message_t state)
 	mpi3mr_stop_watchdog(mrioc);
 	mpi3mr_cleanup_ioc(mrioc);
 
-	device_state = pci_choose_state(pdev, state);
-	ioc_info(mrioc, "pdev=0x%p, slot=%s, entering operating state [D%d]\n",
-	    pdev, pci_name(pdev), device_state);
-	pci_save_state(pdev);
+	ioc_info(mrioc, "pdev=0x%p, slot=%s, entering operating state\n",
+	    pdev, pci_name(pdev));
 	mpi3mr_cleanup_resources(mrioc);
-	pci_set_power_state(pdev, device_state);
 
 	return 0;
 }
 
 /**
  * mpi3mr_resume - PCI power management resume callback
- * @pdev: PCI device instance
+ * @dev: Device struct
  *
  * Restore the power state to D0 and reinitialize the controller
  * and resume I/O operations to the target devices
  *
  * Return: 0 on success, non-zero on failure
  */
-static int mpi3mr_resume(struct pci_dev *pdev)
+static int __maybe_unused
+mpi3mr_resume(struct device *dev)
 {
+	struct pci_dev *pdev = to_pci_dev(dev);
 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
 	struct mpi3mr_ioc *mrioc;
 	pci_power_t device_state = pdev->current_state;
@@ -4825,9 +5215,6 @@ static int mpi3mr_resume(struct pci_dev *pdev)
 
 	ioc_info(mrioc, "pdev=0x%p, slot=%s, previous operating state [D%d]\n",
 	    pdev, pci_name(pdev), device_state);
-	pci_set_power_state(pdev, PCI_D0);
-	pci_enable_wake(pdev, PCI_D0, 0);
-	pci_restore_state(pdev);
 	mrioc->pdev = pdev;
 	mrioc->cpu_count = num_online_cpus();
 	r = mpi3mr_setup_resources(mrioc);
@@ -4838,18 +5225,21 @@ static int mpi3mr_resume(struct pci_dev *pdev)
 	}
 
 	mrioc->stop_drv_processing = 0;
+	mpi3mr_invalidate_devhandles(mrioc);
+	mpi3mr_free_enclosure_list(mrioc);
 	mpi3mr_memset_buffers(mrioc);
 	r = mpi3mr_reinit_ioc(mrioc, 1);
 	if (r) {
 		ioc_err(mrioc, "resuming controller failed[%d]\n", r);
 		return r;
 	}
+	ssleep(MPI3MR_RESET_TOPOLOGY_SETTLE_TIME);
 	scsi_unblock_requests(shost);
+	mrioc->device_refresh_on = 0;
 	mpi3mr_start_watchdog(mrioc);
 
 	return 0;
 }
-#endif
 
 static const struct pci_device_id mpi3mr_pci_id_table[] = {
 	{
@@ -4860,16 +5250,15 @@ static const struct pci_device_id mpi3mr_pci_id_table[] = {
 };
 MODULE_DEVICE_TABLE(pci, mpi3mr_pci_id_table);
 
+static SIMPLE_DEV_PM_OPS(mpi3mr_pm_ops, mpi3mr_suspend, mpi3mr_resume);
+
 static struct pci_driver mpi3mr_pci_driver = {
 	.name = MPI3MR_DRIVER_NAME,
 	.id_table = mpi3mr_pci_id_table,
 	.probe = mpi3mr_probe,
 	.remove = mpi3mr_remove,
 	.shutdown = mpi3mr_shutdown,
-#ifdef CONFIG_PM
-	.suspend = mpi3mr_suspend,
-	.resume = mpi3mr_resume,
-#endif
+	.driver.pm = &mpi3mr_pm_ops,
 };
 
 static ssize_t event_counter_show(struct device_driver *dd, char *buf)
@@ -4885,18 +5274,33 @@ static int __init mpi3mr_init(void)
 	pr_info("Loading %s version %s\n", MPI3MR_DRIVER_NAME,
 	    MPI3MR_DRIVER_VERSION);
 
+	mpi3mr_transport_template =
+	    sas_attach_transport(&mpi3mr_transport_functions);
+	if (!mpi3mr_transport_template) {
+		pr_err("%s failed to load due to sas transport attach failure\n",
+		    MPI3MR_DRIVER_NAME);
+		return -ENODEV;
+	}
+
 	ret_val = pci_register_driver(&mpi3mr_pci_driver);
 	if (ret_val) {
 		pr_err("%s failed to load due to pci register driver failure\n",
 		    MPI3MR_DRIVER_NAME);
-		return ret_val;
+		goto err_pci_reg_fail;
 	}
 
 	ret_val = driver_create_file(&mpi3mr_pci_driver.driver,
 				     &driver_attr_event_counter);
 	if (ret_val)
-		pci_unregister_driver(&mpi3mr_pci_driver);
+		goto err_event_counter;
+
+	return ret_val;
+
+err_event_counter:
+	pci_unregister_driver(&mpi3mr_pci_driver);
 
+err_pci_reg_fail:
+	sas_release_transport(mpi3mr_transport_template);
 	return ret_val;
 }
 
@@ -4913,6 +5317,7 @@ static void __exit mpi3mr_exit(void)
 	driver_remove_file(&mpi3mr_pci_driver.driver,
 			   &driver_attr_event_counter);
 	pci_unregister_driver(&mpi3mr_pci_driver);
+	sas_release_transport(mpi3mr_transport_template);
 }
 
 module_init(mpi3mr_init);
diff --git a/drivers/scsi/mpi3mr/mpi3mr_transport.c b/drivers/scsi/mpi3mr/mpi3mr_transport.c
new file mode 100644
index 000000000000..3fc897336b5e
--- /dev/null
+++ b/drivers/scsi/mpi3mr/mpi3mr_transport.c
@@ -0,0 +1,3291 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Driver for Broadcom MPI3 Storage Controllers
+ *
+ * Copyright (C) 2017-2022 Broadcom Inc.
+ *  (mailto: mpi3mr-linuxdrv.pdl@broadcom.com)
+ *
+ */
+
+#include "mpi3mr.h"
+
+static void mpi3mr_expander_node_remove(struct mpi3mr_ioc *mrioc,
+	struct mpi3mr_sas_node *sas_expander);
+
+/**
+ * mpi3mr_post_transport_req - Issue transport requests and wait
+ * @mrioc: Adapter instance reference
+ * @request: Properly populated MPI3 request
+ * @request_sz: Size of the MPI3 request
+ * @reply: Pointer to return MPI3 reply
+ * @reply_sz: Size of the MPI3 reply buffer
+ * @timeout: Timeout in seconds
+ * @ioc_status: Pointer to return ioc status
+ *
+ * A generic function for posting MPI3 requests from the SAS
+ * transport layer that uses transport command infrastructure.
+ * This blocks for the completion of request for timeout seconds
+ * and if the request times out this function faults the
+ * controller with proper reason code.
+ *
+ * On successful completion of the request this function returns
+ * appropriate ioc status from the firmware back to the caller.
+ *
+ * Return: 0 on success, non-zero on failure.
+ */
+static int mpi3mr_post_transport_req(struct mpi3mr_ioc *mrioc, void *request,
+	u16 request_sz, void *reply, u16 reply_sz, int timeout,
+	u16 *ioc_status)
+{
+	int retval = 0;
+
+	mutex_lock(&mrioc->transport_cmds.mutex);
+	if (mrioc->transport_cmds.state & MPI3MR_CMD_PENDING) {
+		retval = -1;
+		ioc_err(mrioc, "sending transport request failed due to command in use\n");
+		mutex_unlock(&mrioc->transport_cmds.mutex);
+		goto out;
+	}
+	mrioc->transport_cmds.state = MPI3MR_CMD_PENDING;
+	mrioc->transport_cmds.is_waiting = 1;
+	mrioc->transport_cmds.callback = NULL;
+	mrioc->transport_cmds.ioc_status = 0;
+	mrioc->transport_cmds.ioc_loginfo = 0;
+
+	init_completion(&mrioc->transport_cmds.done);
+	dprint_cfg_info(mrioc, "posting transport request\n");
+	if (mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO)
+		dprint_dump(request, request_sz, "transport_req");
+	retval = mpi3mr_admin_request_post(mrioc, request, request_sz, 1);
+	if (retval) {
+		ioc_err(mrioc, "posting transport request failed\n");
+		goto out_unlock;
+	}
+	wait_for_completion_timeout(&mrioc->transport_cmds.done,
+	    (timeout * HZ));
+	if (!(mrioc->transport_cmds.state & MPI3MR_CMD_COMPLETE)) {
+		mpi3mr_check_rh_fault_ioc(mrioc,
+		    MPI3MR_RESET_FROM_SAS_TRANSPORT_TIMEOUT);
+		ioc_err(mrioc, "transport request timed out\n");
+		retval = -1;
+		goto out_unlock;
+	}
+	*ioc_status = mrioc->transport_cmds.ioc_status &
+		MPI3_IOCSTATUS_STATUS_MASK;
+	if ((*ioc_status) != MPI3_IOCSTATUS_SUCCESS)
+		dprint_transport_err(mrioc,
+		    "transport request returned with ioc_status(0x%04x), log_info(0x%08x)\n",
+		    *ioc_status, mrioc->transport_cmds.ioc_loginfo);
+
+	if ((reply) && (mrioc->transport_cmds.state & MPI3MR_CMD_REPLY_VALID))
+		memcpy((u8 *)reply, mrioc->transport_cmds.reply, reply_sz);
+
+out_unlock:
+	mrioc->transport_cmds.state = MPI3MR_CMD_NOTUSED;
+	mutex_unlock(&mrioc->transport_cmds.mutex);
+
+out:
+	return retval;
+}
+
+/* report manufacture request structure */
+struct rep_manu_request {
+	u8 smp_frame_type;
+	u8 function;
+	u8 reserved;
+	u8 request_length;
+};
+
+/* report manufacture reply structure */
+struct rep_manu_reply {
+	u8 smp_frame_type; /* 0x41 */
+	u8 function; /* 0x01 */
+	u8 function_result;
+	u8 response_length;
+	u16 expander_change_count;
+	u8 reserved0[2];
+	u8 sas_format;
+	u8 reserved2[3];
+	u8 vendor_id[SAS_EXPANDER_VENDOR_ID_LEN];
+	u8 product_id[SAS_EXPANDER_PRODUCT_ID_LEN];
+	u8 product_rev[SAS_EXPANDER_PRODUCT_REV_LEN];
+	u8 component_vendor_id[SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN];
+	u16 component_id;
+	u8 component_revision_id;
+	u8 reserved3;
+	u8 vendor_specific[8];
+};
+
+/**
+ * mpi3mr_report_manufacture - obtain SMP report_manufacture
+ * @mrioc: Adapter instance reference
+ * @sas_address: SAS address of the expander device
+ * @edev: SAS transport layer sas_expander_device object
+ * @port_id: ID of the HBA port
+ *
+ * Fills in the sas_expander_device with manufacturing info.
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+static int mpi3mr_report_manufacture(struct mpi3mr_ioc *mrioc,
+	u64 sas_address, struct sas_expander_device *edev, u8 port_id)
+{
+	struct mpi3_smp_passthrough_request mpi_request;
+	struct mpi3_smp_passthrough_reply mpi_reply;
+	struct rep_manu_reply *manufacture_reply;
+	struct rep_manu_request *manufacture_request;
+	int rc = 0;
+	void *psge;
+	void *data_out = NULL;
+	dma_addr_t data_out_dma;
+	dma_addr_t data_in_dma;
+	size_t data_in_sz;
+	size_t data_out_sz;
+	u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
+	u16 request_sz = sizeof(struct mpi3_smp_passthrough_request);
+	u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply);
+	u16 ioc_status;
+	u8 *tmp;
+
+	if (mrioc->reset_in_progress) {
+		ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
+		return -EFAULT;
+	}
+
+	data_out_sz = sizeof(struct rep_manu_request);
+	data_in_sz = sizeof(struct rep_manu_reply);
+	data_out = dma_alloc_coherent(&mrioc->pdev->dev,
+	    data_out_sz + data_in_sz, &data_out_dma, GFP_KERNEL);
+	if (!data_out) {
+		rc = -ENOMEM;
+		goto out;
+	}
+
+	data_in_dma = data_out_dma + data_out_sz;
+	manufacture_reply = data_out + data_out_sz;
+
+	manufacture_request = data_out;
+	manufacture_request->smp_frame_type = 0x40;
+	manufacture_request->function = 1;
+	manufacture_request->reserved = 0;
+	manufacture_request->request_length = 0;
+
+	memset(&mpi_request, 0, request_sz);
+	memset(&mpi_reply, 0, reply_sz);
+	mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
+	mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH;
+	mpi_request.io_unit_port = (u8) port_id;
+	mpi_request.sas_address = cpu_to_le64(sas_address);
+
+	psge = &mpi_request.request_sge;
+	mpi3mr_add_sg_single(psge, sgl_flags, data_out_sz, data_out_dma);
+
+	psge = &mpi_request.response_sge;
+	mpi3mr_add_sg_single(psge, sgl_flags, data_in_sz, data_in_dma);
+
+	dprint_transport_info(mrioc,
+	    "sending report manufacturer SMP request to sas_address(0x%016llx), port(%d)\n",
+	    (unsigned long long)sas_address, port_id);
+
+	rc = mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
+				       &mpi_reply, reply_sz,
+				       MPI3MR_INTADMCMD_TIMEOUT, &ioc_status);
+	if (rc)
+		goto out;
+
+	dprint_transport_info(mrioc,
+	    "report manufacturer SMP request completed with ioc_status(0x%04x)\n",
+	    ioc_status);
+
+	if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		rc = -EINVAL;
+		goto out;
+	}
+
+	dprint_transport_info(mrioc,
+	    "report manufacturer - reply data transfer size(%d)\n",
+	    le16_to_cpu(mpi_reply.response_data_length));
+
+	if (le16_to_cpu(mpi_reply.response_data_length) !=
+	    sizeof(struct rep_manu_reply)) {
+		rc = -EINVAL;
+		goto out;
+	}
+
+	strscpy(edev->vendor_id, manufacture_reply->vendor_id,
+	     SAS_EXPANDER_VENDOR_ID_LEN);
+	strscpy(edev->product_id, manufacture_reply->product_id,
+	     SAS_EXPANDER_PRODUCT_ID_LEN);
+	strscpy(edev->product_rev, manufacture_reply->product_rev,
+	     SAS_EXPANDER_PRODUCT_REV_LEN);
+	edev->level = manufacture_reply->sas_format & 1;
+	if (edev->level) {
+		strscpy(edev->component_vendor_id,
+		    manufacture_reply->component_vendor_id,
+		     SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN);
+		tmp = (u8 *)&manufacture_reply->component_id;
+		edev->component_id = tmp[0] << 8 | tmp[1];
+		edev->component_revision_id =
+		    manufacture_reply->component_revision_id;
+	}
+
+out:
+	if (data_out)
+		dma_free_coherent(&mrioc->pdev->dev, data_out_sz + data_in_sz,
+		    data_out, data_out_dma);
+
+	return rc;
+}
+
+/**
+ * __mpi3mr_expander_find_by_handle - expander search by handle
+ * @mrioc: Adapter instance reference
+ * @handle: Firmware device handle of the expander
+ *
+ * Context: The caller should acquire sas_node_lock
+ *
+ * This searches for expander device based on handle, then
+ * returns the sas_node object.
+ *
+ * Return: Expander sas_node object reference or NULL
+ */
+struct mpi3mr_sas_node *__mpi3mr_expander_find_by_handle(struct mpi3mr_ioc
+	*mrioc, u16 handle)
+{
+	struct mpi3mr_sas_node *sas_expander, *r;
+
+	r = NULL;
+	list_for_each_entry(sas_expander, &mrioc->sas_expander_list, list) {
+		if (sas_expander->handle != handle)
+			continue;
+		r = sas_expander;
+		goto out;
+	}
+ out:
+	return r;
+}
+
+/**
+ * mpi3mr_is_expander_device - if device is an expander
+ * @device_info: Bitfield providing information about the device
+ *
+ * Return: 1 if the device is expander device, else 0.
+ */
+u8 mpi3mr_is_expander_device(u16 device_info)
+{
+	if ((device_info & MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_MASK) ==
+	     MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_EXPANDER)
+		return 1;
+	else
+		return 0;
+}
+
+/**
+ * mpi3mr_get_sas_address - retrieve sas_address for handle
+ * @mrioc: Adapter instance reference
+ * @handle: Firmware device handle
+ * @sas_address: Address to hold sas address
+ *
+ * This function issues device page0 read for a given device
+ * handle and gets the SAS address and return it back
+ *
+ * Return: 0 for success, non-zero for failure
+ */
+static int mpi3mr_get_sas_address(struct mpi3mr_ioc *mrioc, u16 handle,
+	u64 *sas_address)
+{
+	struct mpi3_device_page0 dev_pg0;
+	u16 ioc_status;
+	struct mpi3_device0_sas_sata_format *sasinf;
+
+	*sas_address = 0;
+
+	if ((mpi3mr_cfg_get_dev_pg0(mrioc, &ioc_status, &dev_pg0,
+	    sizeof(dev_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE,
+	    handle))) {
+		ioc_err(mrioc, "%s: device page0 read failed\n", __func__);
+		return -ENXIO;
+	}
+
+	if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		ioc_err(mrioc, "device page read failed for handle(0x%04x), with ioc_status(0x%04x) failure at %s:%d/%s()!\n",
+		    handle, ioc_status, __FILE__, __LINE__, __func__);
+		return -ENXIO;
+	}
+
+	if (le16_to_cpu(dev_pg0.flags) &
+	    MPI3_DEVICE0_FLAGS_CONTROLLER_DEV_HANDLE)
+		*sas_address = mrioc->sas_hba.sas_address;
+	else if (dev_pg0.device_form == MPI3_DEVICE_DEVFORM_SAS_SATA) {
+		sasinf = &dev_pg0.device_specific.sas_sata_format;
+		*sas_address = le64_to_cpu(sasinf->sas_address);
+	} else {
+		ioc_err(mrioc, "%s: device_form(%d) is not SAS_SATA\n",
+		    __func__, dev_pg0.device_form);
+		return -ENXIO;
+	}
+	return 0;
+}
+
+/**
+ * __mpi3mr_get_tgtdev_by_addr - target device search
+ * @mrioc: Adapter instance reference
+ * @sas_address: SAS address of the device
+ * @hba_port: HBA port entry
+ *
+ * This searches for target device from sas address and hba port
+ * pointer then return mpi3mr_tgt_dev object.
+ *
+ * Return: Valid tget_dev or NULL
+ */
+static struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_by_addr(struct mpi3mr_ioc *mrioc,
+	u64 sas_address, struct mpi3mr_hba_port *hba_port)
+{
+	struct mpi3mr_tgt_dev *tgtdev;
+
+	assert_spin_locked(&mrioc->tgtdev_lock);
+
+	list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list)
+		if ((tgtdev->dev_type == MPI3_DEVICE_DEVFORM_SAS_SATA) &&
+		    (tgtdev->dev_spec.sas_sata_inf.sas_address == sas_address)
+		    && (tgtdev->dev_spec.sas_sata_inf.hba_port == hba_port))
+			goto found_device;
+	return NULL;
+found_device:
+	mpi3mr_tgtdev_get(tgtdev);
+	return tgtdev;
+}
+
+/**
+ * mpi3mr_get_tgtdev_by_addr - target device search
+ * @mrioc: Adapter instance reference
+ * @sas_address: SAS address of the device
+ * @hba_port: HBA port entry
+ *
+ * This searches for target device from sas address and hba port
+ * pointer then return mpi3mr_tgt_dev object.
+ *
+ * Context: This function will acquire tgtdev_lock and will
+ * release before returning the mpi3mr_tgt_dev object.
+ *
+ * Return: Valid tget_dev or NULL
+ */
+static struct mpi3mr_tgt_dev *mpi3mr_get_tgtdev_by_addr(struct mpi3mr_ioc *mrioc,
+	u64 sas_address, struct mpi3mr_hba_port *hba_port)
+{
+	struct mpi3mr_tgt_dev *tgtdev = NULL;
+	unsigned long flags;
+
+	if (!hba_port)
+		goto out;
+
+	spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
+	tgtdev = __mpi3mr_get_tgtdev_by_addr(mrioc, sas_address, hba_port);
+	spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
+
+out:
+	return tgtdev;
+}
+
+/**
+ * mpi3mr_remove_device_by_sas_address - remove the device
+ * @mrioc: Adapter instance reference
+ * @sas_address: SAS address of the device
+ * @hba_port: HBA port entry
+ *
+ * This searches for target device using sas address and hba
+ * port pointer then removes it from the OS.
+ *
+ * Return: None
+ */
+static void mpi3mr_remove_device_by_sas_address(struct mpi3mr_ioc *mrioc,
+	u64 sas_address, struct mpi3mr_hba_port *hba_port)
+{
+	struct mpi3mr_tgt_dev *tgtdev = NULL;
+	unsigned long flags;
+	u8 was_on_tgtdev_list = 0;
+
+	if (!hba_port)
+		return;
+
+	spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
+	tgtdev = __mpi3mr_get_tgtdev_by_addr(mrioc,
+			 sas_address, hba_port);
+	if (tgtdev) {
+		if (!list_empty(&tgtdev->list)) {
+			list_del_init(&tgtdev->list);
+			was_on_tgtdev_list = 1;
+			mpi3mr_tgtdev_put(tgtdev);
+		}
+	}
+	spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
+	if (was_on_tgtdev_list) {
+		if (tgtdev->host_exposed)
+			mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev);
+		mpi3mr_tgtdev_put(tgtdev);
+	}
+}
+
+/**
+ * __mpi3mr_get_tgtdev_by_addr_and_rphy - target device search
+ * @mrioc: Adapter instance reference
+ * @sas_address: SAS address of the device
+ * @rphy: SAS transport layer rphy object
+ *
+ * This searches for target device from sas address and rphy
+ * pointer then return mpi3mr_tgt_dev object.
+ *
+ * Return: Valid tget_dev or NULL
+ */
+struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_by_addr_and_rphy(
+	struct mpi3mr_ioc *mrioc, u64 sas_address, struct sas_rphy *rphy)
+{
+	struct mpi3mr_tgt_dev *tgtdev;
+
+	assert_spin_locked(&mrioc->tgtdev_lock);
+
+	list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list)
+		if ((tgtdev->dev_type == MPI3_DEVICE_DEVFORM_SAS_SATA) &&
+		    (tgtdev->dev_spec.sas_sata_inf.sas_address == sas_address)
+		    && (tgtdev->dev_spec.sas_sata_inf.rphy == rphy))
+			goto found_device;
+	return NULL;
+found_device:
+	mpi3mr_tgtdev_get(tgtdev);
+	return tgtdev;
+}
+
+/**
+ * mpi3mr_expander_find_by_sas_address - sas expander search
+ * @mrioc: Adapter instance reference
+ * @sas_address: SAS address of expander
+ * @hba_port: HBA port entry
+ *
+ * Return: A valid SAS expander node or NULL.
+ *
+ */
+static struct mpi3mr_sas_node *mpi3mr_expander_find_by_sas_address(
+	struct mpi3mr_ioc *mrioc, u64 sas_address,
+	struct mpi3mr_hba_port *hba_port)
+{
+	struct mpi3mr_sas_node *sas_expander, *r = NULL;
+
+	if (!hba_port)
+		goto out;
+
+	list_for_each_entry(sas_expander, &mrioc->sas_expander_list, list) {
+		if ((sas_expander->sas_address != sas_address) ||
+					 (sas_expander->hba_port != hba_port))
+			continue;
+		r = sas_expander;
+		goto out;
+	}
+out:
+	return r;
+}
+
+/**
+ * __mpi3mr_sas_node_find_by_sas_address - sas node search
+ * @mrioc: Adapter instance reference
+ * @sas_address: SAS address of expander or sas host
+ * @hba_port: HBA port entry
+ * Context: Caller should acquire mrioc->sas_node_lock.
+ *
+ * If the SAS address indicates the device is direct attached to
+ * the controller (controller's SAS address) then the SAS node
+ * associated with the controller is returned back else the SAS
+ * address and hba port are used to identify the exact expander
+ * and the associated sas_node object is returned. If there is
+ * no match NULL is returned.
+ *
+ * Return: A valid SAS node or NULL.
+ *
+ */
+static struct mpi3mr_sas_node *__mpi3mr_sas_node_find_by_sas_address(
+	struct mpi3mr_ioc *mrioc, u64 sas_address,
+	struct mpi3mr_hba_port *hba_port)
+{
+
+	if (mrioc->sas_hba.sas_address == sas_address)
+		return &mrioc->sas_hba;
+	return mpi3mr_expander_find_by_sas_address(mrioc, sas_address,
+	    hba_port);
+}
+
+/**
+ * mpi3mr_parent_present - Is parent present for a phy
+ * @mrioc: Adapter instance reference
+ * @phy: SAS transport layer phy object
+ *
+ * Return: 0 if parent is present else non-zero
+ */
+static int mpi3mr_parent_present(struct mpi3mr_ioc *mrioc, struct sas_phy *phy)
+{
+	unsigned long flags;
+	struct mpi3mr_hba_port *hba_port = phy->hostdata;
+
+	spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+	if (__mpi3mr_sas_node_find_by_sas_address(mrioc,
+	    phy->identify.sas_address,
+	    hba_port) == NULL) {
+		spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+		return -1;
+	}
+	spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+	return 0;
+}
+
+/**
+ * mpi3mr_convert_phy_link_rate -
+ * @link_rate: link rate as defined in the MPI header
+ *
+ * Convert link_rate from mpi format into sas_transport layer
+ * form.
+ *
+ * Return: A valid SAS transport layer defined link rate
+ */
+static enum sas_linkrate mpi3mr_convert_phy_link_rate(u8 link_rate)
+{
+	enum sas_linkrate rc;
+
+	switch (link_rate) {
+	case MPI3_SAS_NEG_LINK_RATE_1_5:
+		rc = SAS_LINK_RATE_1_5_GBPS;
+		break;
+	case MPI3_SAS_NEG_LINK_RATE_3_0:
+		rc = SAS_LINK_RATE_3_0_GBPS;
+		break;
+	case MPI3_SAS_NEG_LINK_RATE_6_0:
+		rc = SAS_LINK_RATE_6_0_GBPS;
+		break;
+	case MPI3_SAS_NEG_LINK_RATE_12_0:
+		rc = SAS_LINK_RATE_12_0_GBPS;
+		break;
+	case MPI3_SAS_NEG_LINK_RATE_22_5:
+		rc = SAS_LINK_RATE_22_5_GBPS;
+		break;
+	case MPI3_SAS_NEG_LINK_RATE_PHY_DISABLED:
+		rc = SAS_PHY_DISABLED;
+		break;
+	case MPI3_SAS_NEG_LINK_RATE_NEGOTIATION_FAILED:
+		rc = SAS_LINK_RATE_FAILED;
+		break;
+	case MPI3_SAS_NEG_LINK_RATE_PORT_SELECTOR:
+		rc = SAS_SATA_PORT_SELECTOR;
+		break;
+	case MPI3_SAS_NEG_LINK_RATE_SMP_RESET_IN_PROGRESS:
+		rc = SAS_PHY_RESET_IN_PROGRESS;
+		break;
+	case MPI3_SAS_NEG_LINK_RATE_SATA_OOB_COMPLETE:
+	case MPI3_SAS_NEG_LINK_RATE_UNKNOWN_LINK_RATE:
+	default:
+		rc = SAS_LINK_RATE_UNKNOWN;
+		break;
+	}
+	return rc;
+}
+
+/**
+ * mpi3mr_delete_sas_phy - Remove a single phy from port
+ * @mrioc: Adapter instance reference
+ * @mr_sas_port: Internal Port object
+ * @mr_sas_phy: Internal Phy object
+ *
+ * Return: None.
+ */
+static void mpi3mr_delete_sas_phy(struct mpi3mr_ioc *mrioc,
+	struct mpi3mr_sas_port *mr_sas_port,
+	struct mpi3mr_sas_phy *mr_sas_phy)
+{
+	u64 sas_address = mr_sas_port->remote_identify.sas_address;
+
+	dev_info(&mr_sas_phy->phy->dev,
+	    "remove: sas_address(0x%016llx), phy(%d)\n",
+	    (unsigned long long) sas_address, mr_sas_phy->phy_id);
+
+	list_del(&mr_sas_phy->port_siblings);
+	mr_sas_port->num_phys--;
+	mr_sas_port->phy_mask &= ~(1 << mr_sas_phy->phy_id);
+	if (mr_sas_port->lowest_phy == mr_sas_phy->phy_id)
+		mr_sas_port->lowest_phy = ffs(mr_sas_port->phy_mask) - 1;
+	sas_port_delete_phy(mr_sas_port->port, mr_sas_phy->phy);
+	mr_sas_phy->phy_belongs_to_port = 0;
+}
+
+/**
+ * mpi3mr_add_sas_phy - Adding a single phy to a port
+ * @mrioc: Adapter instance reference
+ * @mr_sas_port: Internal Port object
+ * @mr_sas_phy: Internal Phy object
+ *
+ * Return: None.
+ */
+static void mpi3mr_add_sas_phy(struct mpi3mr_ioc *mrioc,
+	struct mpi3mr_sas_port *mr_sas_port,
+	struct mpi3mr_sas_phy *mr_sas_phy)
+{
+	u64 sas_address = mr_sas_port->remote_identify.sas_address;
+
+	dev_info(&mr_sas_phy->phy->dev,
+	    "add: sas_address(0x%016llx), phy(%d)\n", (unsigned long long)
+	    sas_address, mr_sas_phy->phy_id);
+
+	list_add_tail(&mr_sas_phy->port_siblings, &mr_sas_port->phy_list);
+	mr_sas_port->num_phys++;
+	mr_sas_port->phy_mask |= (1 << mr_sas_phy->phy_id);
+	if (mr_sas_phy->phy_id < mr_sas_port->lowest_phy)
+		mr_sas_port->lowest_phy = ffs(mr_sas_port->phy_mask) - 1;
+	sas_port_add_phy(mr_sas_port->port, mr_sas_phy->phy);
+	mr_sas_phy->phy_belongs_to_port = 1;
+}
+
+/**
+ * mpi3mr_add_phy_to_an_existing_port - add phy to existing port
+ * @mrioc: Adapter instance reference
+ * @mr_sas_node: Internal sas node object (expander or host)
+ * @mr_sas_phy: Internal Phy object *
+ * @sas_address: SAS address of device/expander were phy needs
+ *             to be added to
+ * @hba_port: HBA port entry
+ *
+ * Return: None.
+ */
+static void mpi3mr_add_phy_to_an_existing_port(struct mpi3mr_ioc *mrioc,
+	struct mpi3mr_sas_node *mr_sas_node, struct mpi3mr_sas_phy *mr_sas_phy,
+	u64 sas_address, struct mpi3mr_hba_port *hba_port)
+{
+	struct mpi3mr_sas_port *mr_sas_port;
+	struct mpi3mr_sas_phy *srch_phy;
+
+	if (mr_sas_phy->phy_belongs_to_port == 1)
+		return;
+
+	if (!hba_port)
+		return;
+
+	list_for_each_entry(mr_sas_port, &mr_sas_node->sas_port_list,
+	    port_list) {
+		if (mr_sas_port->remote_identify.sas_address !=
+		    sas_address)
+			continue;
+		if (mr_sas_port->hba_port != hba_port)
+			continue;
+		list_for_each_entry(srch_phy, &mr_sas_port->phy_list,
+		    port_siblings) {
+			if (srch_phy == mr_sas_phy)
+				return;
+		}
+		mpi3mr_add_sas_phy(mrioc, mr_sas_port, mr_sas_phy);
+		return;
+	}
+}
+
+/**
+ * mpi3mr_delete_sas_port - helper function to removing a port
+ * @mrioc: Adapter instance reference
+ * @mr_sas_port: Internal Port object
+ *
+ * Return: None.
+ */
+static void  mpi3mr_delete_sas_port(struct mpi3mr_ioc *mrioc,
+	struct mpi3mr_sas_port *mr_sas_port)
+{
+	u64 sas_address = mr_sas_port->remote_identify.sas_address;
+	struct mpi3mr_hba_port *hba_port = mr_sas_port->hba_port;
+	enum sas_device_type device_type =
+	    mr_sas_port->remote_identify.device_type;
+
+	dev_info(&mr_sas_port->port->dev,
+	    "remove: sas_address(0x%016llx)\n",
+	    (unsigned long long) sas_address);
+
+	if (device_type == SAS_END_DEVICE)
+		mpi3mr_remove_device_by_sas_address(mrioc, sas_address,
+		    hba_port);
+
+	else if (device_type == SAS_EDGE_EXPANDER_DEVICE ||
+	    device_type == SAS_FANOUT_EXPANDER_DEVICE)
+		mpi3mr_expander_remove(mrioc, sas_address, hba_port);
+}
+
+/**
+ * mpi3mr_del_phy_from_an_existing_port - del phy from a port
+ * @mrioc: Adapter instance reference
+ * @mr_sas_node: Internal sas node object (expander or host)
+ * @mr_sas_phy: Internal Phy object
+ *
+ * Return: None.
+ */
+static void mpi3mr_del_phy_from_an_existing_port(struct mpi3mr_ioc *mrioc,
+	struct mpi3mr_sas_node *mr_sas_node, struct mpi3mr_sas_phy *mr_sas_phy)
+{
+	struct mpi3mr_sas_port *mr_sas_port, *next;
+	struct mpi3mr_sas_phy *srch_phy;
+
+	if (mr_sas_phy->phy_belongs_to_port == 0)
+		return;
+
+	list_for_each_entry_safe(mr_sas_port, next, &mr_sas_node->sas_port_list,
+	    port_list) {
+		list_for_each_entry(srch_phy, &mr_sas_port->phy_list,
+		    port_siblings) {
+			if (srch_phy != mr_sas_phy)
+				continue;
+			if ((mr_sas_port->num_phys == 1) &&
+			    !mrioc->reset_in_progress)
+				mpi3mr_delete_sas_port(mrioc, mr_sas_port);
+			else
+				mpi3mr_delete_sas_phy(mrioc, mr_sas_port,
+				    mr_sas_phy);
+			return;
+		}
+	}
+}
+
+/**
+ * mpi3mr_sas_port_sanity_check - sanity check while adding port
+ * @mrioc: Adapter instance reference
+ * @mr_sas_node: Internal sas node object (expander or host)
+ * @sas_address: SAS address of device/expander
+ * @hba_port: HBA port entry
+ *
+ * Verifies whether the Phys attached to a device with the given
+ * SAS address already belongs to an existing sas port if so
+ * will remove those phys from the sas port
+ *
+ * Return: None.
+ */
+static void mpi3mr_sas_port_sanity_check(struct mpi3mr_ioc *mrioc,
+	struct mpi3mr_sas_node *mr_sas_node, u64 sas_address,
+	struct mpi3mr_hba_port *hba_port)
+{
+	int i;
+
+	for (i = 0; i < mr_sas_node->num_phys; i++) {
+		if ((mr_sas_node->phy[i].remote_identify.sas_address !=
+		    sas_address) || (mr_sas_node->phy[i].hba_port != hba_port))
+			continue;
+		if (mr_sas_node->phy[i].phy_belongs_to_port == 1)
+			mpi3mr_del_phy_from_an_existing_port(mrioc,
+			    mr_sas_node, &mr_sas_node->phy[i]);
+	}
+}
+
+/**
+ * mpi3mr_set_identify - set identify for phys and end devices
+ * @mrioc: Adapter instance reference
+ * @handle: Firmware device handle
+ * @identify: SAS transport layer's identify info
+ *
+ * Populates sas identify info for a specific device.
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+static int mpi3mr_set_identify(struct mpi3mr_ioc *mrioc, u16 handle,
+	struct sas_identify *identify)
+{
+
+	struct mpi3_device_page0 device_pg0;
+	struct mpi3_device0_sas_sata_format *sasinf;
+	u16 device_info;
+	u16 ioc_status;
+
+	if (mrioc->reset_in_progress) {
+		ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
+		return -EFAULT;
+	}
+
+	if ((mpi3mr_cfg_get_dev_pg0(mrioc, &ioc_status, &device_pg0,
+	    sizeof(device_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE, handle))) {
+		ioc_err(mrioc, "%s: device page0 read failed\n", __func__);
+		return -ENXIO;
+	}
+
+	if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		ioc_err(mrioc, "device page read failed for handle(0x%04x), with ioc_status(0x%04x) failure at %s:%d/%s()!\n",
+		    handle, ioc_status, __FILE__, __LINE__, __func__);
+		return -EIO;
+	}
+
+	memset(identify, 0, sizeof(struct sas_identify));
+	sasinf = &device_pg0.device_specific.sas_sata_format;
+	device_info = le16_to_cpu(sasinf->device_info);
+
+	/* sas_address */
+	identify->sas_address = le64_to_cpu(sasinf->sas_address);
+
+	/* phy number of the parent device this device is linked to */
+	identify->phy_identifier = sasinf->phy_num;
+
+	/* device_type */
+	switch (device_info & MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_MASK) {
+	case MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_NO_DEVICE:
+		identify->device_type = SAS_PHY_UNUSED;
+		break;
+	case MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_END_DEVICE:
+		identify->device_type = SAS_END_DEVICE;
+		break;
+	case MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_EXPANDER:
+		identify->device_type = SAS_EDGE_EXPANDER_DEVICE;
+		break;
+	}
+
+	/* initiator_port_protocols */
+	if (device_info & MPI3_SAS_DEVICE_INFO_SSP_INITIATOR)
+		identify->initiator_port_protocols |= SAS_PROTOCOL_SSP;
+	/* MPI3.0 doesn't have define for SATA INIT so setting both here*/
+	if (device_info & MPI3_SAS_DEVICE_INFO_STP_INITIATOR)
+		identify->initiator_port_protocols |= (SAS_PROTOCOL_STP |
+		    SAS_PROTOCOL_SATA);
+	if (device_info & MPI3_SAS_DEVICE_INFO_SMP_INITIATOR)
+		identify->initiator_port_protocols |= SAS_PROTOCOL_SMP;
+
+	/* target_port_protocols */
+	if (device_info & MPI3_SAS_DEVICE_INFO_SSP_TARGET)
+		identify->target_port_protocols |= SAS_PROTOCOL_SSP;
+	/* MPI3.0 doesn't have define for STP Target so setting both here*/
+	if (device_info & MPI3_SAS_DEVICE_INFO_STP_SATA_TARGET)
+		identify->target_port_protocols |= (SAS_PROTOCOL_STP |
+		    SAS_PROTOCOL_SATA);
+	if (device_info & MPI3_SAS_DEVICE_INFO_SMP_TARGET)
+		identify->target_port_protocols |= SAS_PROTOCOL_SMP;
+	return 0;
+}
+
+/**
+ * mpi3mr_add_host_phy - report sas_host phy to SAS transport
+ * @mrioc: Adapter instance reference
+ * @mr_sas_phy: Internal Phy object
+ * @phy_pg0: SAS phy page 0
+ * @parent_dev: Prent device class object
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+static int mpi3mr_add_host_phy(struct mpi3mr_ioc *mrioc,
+	struct mpi3mr_sas_phy *mr_sas_phy, struct mpi3_sas_phy_page0 phy_pg0,
+	struct device *parent_dev)
+{
+	struct sas_phy *phy;
+	int phy_index = mr_sas_phy->phy_id;
+
+
+	INIT_LIST_HEAD(&mr_sas_phy->port_siblings);
+	phy = sas_phy_alloc(parent_dev, phy_index);
+	if (!phy) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -1;
+	}
+	if ((mpi3mr_set_identify(mrioc, mr_sas_phy->handle,
+	    &mr_sas_phy->identify))) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		sas_phy_free(phy);
+		return -1;
+	}
+	phy->identify = mr_sas_phy->identify;
+	mr_sas_phy->attached_handle = le16_to_cpu(phy_pg0.attached_dev_handle);
+	if (mr_sas_phy->attached_handle)
+		mpi3mr_set_identify(mrioc, mr_sas_phy->attached_handle,
+		    &mr_sas_phy->remote_identify);
+	phy->identify.phy_identifier = mr_sas_phy->phy_id;
+	phy->negotiated_linkrate = mpi3mr_convert_phy_link_rate(
+	    (phy_pg0.negotiated_link_rate &
+	    MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
+	    MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT);
+	phy->minimum_linkrate_hw = mpi3mr_convert_phy_link_rate(
+	    phy_pg0.hw_link_rate & MPI3_SAS_HWRATE_MIN_RATE_MASK);
+	phy->maximum_linkrate_hw = mpi3mr_convert_phy_link_rate(
+	    phy_pg0.hw_link_rate >> 4);
+	phy->minimum_linkrate = mpi3mr_convert_phy_link_rate(
+	    phy_pg0.programmed_link_rate & MPI3_SAS_PRATE_MIN_RATE_MASK);
+	phy->maximum_linkrate = mpi3mr_convert_phy_link_rate(
+	    phy_pg0.programmed_link_rate >> 4);
+	phy->hostdata = mr_sas_phy->hba_port;
+
+	if ((sas_phy_add(phy))) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		sas_phy_free(phy);
+		return -1;
+	}
+	if ((mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO))
+		dev_info(&phy->dev,
+		    "add: handle(0x%04x), sas_address(0x%016llx)\n"
+		    "\tattached_handle(0x%04x), sas_address(0x%016llx)\n",
+		    mr_sas_phy->handle, (unsigned long long)
+		    mr_sas_phy->identify.sas_address,
+		    mr_sas_phy->attached_handle,
+		    (unsigned long long)
+		    mr_sas_phy->remote_identify.sas_address);
+	mr_sas_phy->phy = phy;
+	return 0;
+}
+
+/**
+ * mpi3mr_add_expander_phy - report expander phy to transport
+ * @mrioc: Adapter instance reference
+ * @mr_sas_phy: Internal Phy object
+ * @expander_pg1: SAS Expander page 1
+ * @parent_dev: Parent device class object
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+static int mpi3mr_add_expander_phy(struct mpi3mr_ioc *mrioc,
+	struct mpi3mr_sas_phy *mr_sas_phy,
+	struct mpi3_sas_expander_page1 expander_pg1,
+	struct device *parent_dev)
+{
+	struct sas_phy *phy;
+	int phy_index = mr_sas_phy->phy_id;
+
+	INIT_LIST_HEAD(&mr_sas_phy->port_siblings);
+	phy = sas_phy_alloc(parent_dev, phy_index);
+	if (!phy) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -1;
+	}
+	if ((mpi3mr_set_identify(mrioc, mr_sas_phy->handle,
+	    &mr_sas_phy->identify))) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		sas_phy_free(phy);
+		return -1;
+	}
+	phy->identify = mr_sas_phy->identify;
+	mr_sas_phy->attached_handle =
+	    le16_to_cpu(expander_pg1.attached_dev_handle);
+	if (mr_sas_phy->attached_handle)
+		mpi3mr_set_identify(mrioc, mr_sas_phy->attached_handle,
+		    &mr_sas_phy->remote_identify);
+	phy->identify.phy_identifier = mr_sas_phy->phy_id;
+	phy->negotiated_linkrate = mpi3mr_convert_phy_link_rate(
+	    (expander_pg1.negotiated_link_rate &
+	    MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
+	    MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT);
+	phy->minimum_linkrate_hw = mpi3mr_convert_phy_link_rate(
+	    expander_pg1.hw_link_rate & MPI3_SAS_HWRATE_MIN_RATE_MASK);
+	phy->maximum_linkrate_hw = mpi3mr_convert_phy_link_rate(
+	    expander_pg1.hw_link_rate >> 4);
+	phy->minimum_linkrate = mpi3mr_convert_phy_link_rate(
+	    expander_pg1.programmed_link_rate & MPI3_SAS_PRATE_MIN_RATE_MASK);
+	phy->maximum_linkrate = mpi3mr_convert_phy_link_rate(
+	    expander_pg1.programmed_link_rate >> 4);
+	phy->hostdata = mr_sas_phy->hba_port;
+
+	if ((sas_phy_add(phy))) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		sas_phy_free(phy);
+		return -1;
+	}
+	if ((mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO))
+		dev_info(&phy->dev,
+		    "add: handle(0x%04x), sas_address(0x%016llx)\n"
+		    "\tattached_handle(0x%04x), sas_address(0x%016llx)\n",
+		    mr_sas_phy->handle, (unsigned long long)
+		    mr_sas_phy->identify.sas_address,
+		    mr_sas_phy->attached_handle,
+		    (unsigned long long)
+		    mr_sas_phy->remote_identify.sas_address);
+	mr_sas_phy->phy = phy;
+	return 0;
+}
+
+/**
+ * mpi3mr_alloc_hba_port - alloc hba port object
+ * @mrioc: Adapter instance reference
+ * @port_id: Port number
+ *
+ * Alloc memory for hba port object.
+ */
+static struct mpi3mr_hba_port *
+mpi3mr_alloc_hba_port(struct mpi3mr_ioc *mrioc, u16 port_id)
+{
+	struct mpi3mr_hba_port *hba_port;
+
+	hba_port = kzalloc(sizeof(struct mpi3mr_hba_port),
+	    GFP_KERNEL);
+	if (!hba_port)
+		return NULL;
+	hba_port->port_id = port_id;
+	ioc_info(mrioc, "hba_port entry: %p, port: %d is added to hba_port list\n",
+	    hba_port, hba_port->port_id);
+	list_add_tail(&hba_port->list, &mrioc->hba_port_table_list);
+	return hba_port;
+}
+
+/**
+ * mpi3mr_get_hba_port_by_id - find hba port by id
+ * @mrioc: Adapter instance reference
+ * @port_id - Port ID to search
+ *
+ * Return: mpi3mr_hba_port reference for the matched port
+ */
+
+struct mpi3mr_hba_port *mpi3mr_get_hba_port_by_id(struct mpi3mr_ioc *mrioc,
+	u8 port_id)
+{
+	struct mpi3mr_hba_port *port, *port_next;
+
+	list_for_each_entry_safe(port, port_next,
+	    &mrioc->hba_port_table_list, list) {
+		if (port->port_id != port_id)
+			continue;
+		if (port->flags & MPI3MR_HBA_PORT_FLAG_DIRTY)
+			continue;
+		return port;
+	}
+
+	return NULL;
+}
+
+/**
+ * mpi3mr_update_links - refreshing SAS phy link changes
+ * @mrioc: Adapter instance reference
+ * @sas_address_parent: SAS address of parent expander or host
+ * @handle: Firmware device handle of attached device
+ * @phy_number: Phy number
+ * @link_rate: New link rate
+ * @hba_port: HBA port entry
+ *
+ * Return: None.
+ */
+void mpi3mr_update_links(struct mpi3mr_ioc *mrioc,
+	u64 sas_address_parent, u16 handle, u8 phy_number, u8 link_rate,
+	struct mpi3mr_hba_port *hba_port)
+{
+	unsigned long flags;
+	struct mpi3mr_sas_node *mr_sas_node;
+	struct mpi3mr_sas_phy *mr_sas_phy;
+
+	if (mrioc->reset_in_progress)
+		return;
+
+	spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+	mr_sas_node = __mpi3mr_sas_node_find_by_sas_address(mrioc,
+	    sas_address_parent, hba_port);
+	if (!mr_sas_node) {
+		spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+		return;
+	}
+
+	mr_sas_phy = &mr_sas_node->phy[phy_number];
+	mr_sas_phy->attached_handle = handle;
+	spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+	if (handle && (link_rate >= MPI3_SAS_NEG_LINK_RATE_1_5)) {
+		mpi3mr_set_identify(mrioc, handle,
+		    &mr_sas_phy->remote_identify);
+		mpi3mr_add_phy_to_an_existing_port(mrioc, mr_sas_node,
+		    mr_sas_phy, mr_sas_phy->remote_identify.sas_address,
+		    hba_port);
+	} else
+		memset(&mr_sas_phy->remote_identify, 0, sizeof(struct
+		    sas_identify));
+
+	if (mr_sas_phy->phy)
+		mr_sas_phy->phy->negotiated_linkrate =
+		    mpi3mr_convert_phy_link_rate(link_rate);
+
+	if ((mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO))
+		dev_info(&mr_sas_phy->phy->dev,
+		    "refresh: parent sas_address(0x%016llx),\n"
+		    "\tlink_rate(0x%02x), phy(%d)\n"
+		    "\tattached_handle(0x%04x), sas_address(0x%016llx)\n",
+		    (unsigned long long)sas_address_parent,
+		    link_rate, phy_number, handle, (unsigned long long)
+		    mr_sas_phy->remote_identify.sas_address);
+}
+
+/**
+ * mpi3mr_sas_host_refresh - refreshing sas host object contents
+ * @mrioc: Adapter instance reference
+ *
+ * This function refreshes the controllers phy information and
+ * updates the SAS transport layer with updated information,
+ * this is executed for each device addition or device info
+ * change events
+ *
+ * Return: None.
+ */
+void mpi3mr_sas_host_refresh(struct mpi3mr_ioc *mrioc)
+{
+	int i;
+	u8 link_rate;
+	u16 sz, port_id, attached_handle;
+	struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0 = NULL;
+
+	dprint_transport_info(mrioc,
+	    "updating handles for sas_host(0x%016llx)\n",
+	    (unsigned long long)mrioc->sas_hba.sas_address);
+
+	sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) +
+	    (mrioc->sas_hba.num_phys *
+	     sizeof(struct mpi3_sas_io_unit0_phy_data));
+	sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL);
+	if (!sas_io_unit_pg0)
+		return;
+	if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		goto out;
+	}
+
+	mrioc->sas_hba.handle = 0;
+	for (i = 0; i < mrioc->sas_hba.num_phys; i++) {
+		if (sas_io_unit_pg0->phy_data[i].phy_flags &
+		    (MPI3_SASIOUNIT0_PHYFLAGS_HOST_PHY |
+		     MPI3_SASIOUNIT0_PHYFLAGS_VIRTUAL_PHY))
+			continue;
+		link_rate =
+		    sas_io_unit_pg0->phy_data[i].negotiated_link_rate >> 4;
+		if (!mrioc->sas_hba.handle)
+			mrioc->sas_hba.handle = le16_to_cpu(
+			    sas_io_unit_pg0->phy_data[i].controller_dev_handle);
+		port_id = sas_io_unit_pg0->phy_data[i].io_unit_port;
+		if (!(mpi3mr_get_hba_port_by_id(mrioc, port_id)))
+			if (!mpi3mr_alloc_hba_port(mrioc, port_id))
+				goto out;
+
+		mrioc->sas_hba.phy[i].handle = mrioc->sas_hba.handle;
+		attached_handle = le16_to_cpu(
+		    sas_io_unit_pg0->phy_data[i].attached_dev_handle);
+		if (attached_handle && link_rate < MPI3_SAS_NEG_LINK_RATE_1_5)
+			link_rate = MPI3_SAS_NEG_LINK_RATE_1_5;
+		mrioc->sas_hba.phy[i].hba_port =
+			mpi3mr_get_hba_port_by_id(mrioc, port_id);
+		mpi3mr_update_links(mrioc, mrioc->sas_hba.sas_address,
+		    attached_handle, i, link_rate,
+		    mrioc->sas_hba.phy[i].hba_port);
+	}
+ out:
+	kfree(sas_io_unit_pg0);
+}
+
+/**
+ * mpi3mr_sas_host_add - create sas host object
+ * @mrioc: Adapter instance reference
+ *
+ * This function creates the controllers phy information and
+ * updates the SAS transport layer with updated information,
+ * this is executed for first device addition or device info
+ * change event.
+ *
+ * Return: None.
+ */
+void mpi3mr_sas_host_add(struct mpi3mr_ioc *mrioc)
+{
+	int i;
+	u16 sz, num_phys = 1, port_id, ioc_status;
+	struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0 = NULL;
+	struct mpi3_sas_phy_page0 phy_pg0;
+	struct mpi3_device_page0 dev_pg0;
+	struct mpi3_enclosure_page0 encl_pg0;
+	struct mpi3_device0_sas_sata_format *sasinf;
+
+	sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) +
+	    (num_phys * sizeof(struct mpi3_sas_io_unit0_phy_data));
+	sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL);
+	if (!sas_io_unit_pg0)
+		return;
+
+	if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		goto out;
+	}
+	num_phys = sas_io_unit_pg0->num_phys;
+	kfree(sas_io_unit_pg0);
+
+	mrioc->sas_hba.host_node = 1;
+	INIT_LIST_HEAD(&mrioc->sas_hba.sas_port_list);
+	mrioc->sas_hba.parent_dev = &mrioc->shost->shost_gendev;
+	mrioc->sas_hba.phy = kcalloc(num_phys,
+	    sizeof(struct mpi3mr_sas_phy), GFP_KERNEL);
+	if (!mrioc->sas_hba.phy)
+		return;
+
+	mrioc->sas_hba.num_phys = num_phys;
+
+	sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) +
+	    (num_phys * sizeof(struct mpi3_sas_io_unit0_phy_data));
+	sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL);
+	if (!sas_io_unit_pg0)
+		return;
+
+	if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		goto out;
+	}
+
+	mrioc->sas_hba.handle = 0;
+	for (i = 0; i < mrioc->sas_hba.num_phys; i++) {
+		if (sas_io_unit_pg0->phy_data[i].phy_flags &
+		    (MPI3_SASIOUNIT0_PHYFLAGS_HOST_PHY |
+		    MPI3_SASIOUNIT0_PHYFLAGS_VIRTUAL_PHY))
+			continue;
+		if (mpi3mr_cfg_get_sas_phy_pg0(mrioc, &ioc_status, &phy_pg0,
+		    sizeof(struct mpi3_sas_phy_page0),
+		    MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, i)) {
+			ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+			    __FILE__, __LINE__, __func__);
+			goto out;
+		}
+		if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+			ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+			    __FILE__, __LINE__, __func__);
+			goto out;
+		}
+
+		if (!mrioc->sas_hba.handle)
+			mrioc->sas_hba.handle = le16_to_cpu(
+			    sas_io_unit_pg0->phy_data[i].controller_dev_handle);
+		port_id = sas_io_unit_pg0->phy_data[i].io_unit_port;
+
+		if (!(mpi3mr_get_hba_port_by_id(mrioc, port_id)))
+			if (!mpi3mr_alloc_hba_port(mrioc, port_id))
+				goto out;
+
+		mrioc->sas_hba.phy[i].handle = mrioc->sas_hba.handle;
+		mrioc->sas_hba.phy[i].phy_id = i;
+		mrioc->sas_hba.phy[i].hba_port =
+		    mpi3mr_get_hba_port_by_id(mrioc, port_id);
+		mpi3mr_add_host_phy(mrioc, &mrioc->sas_hba.phy[i],
+		    phy_pg0, mrioc->sas_hba.parent_dev);
+	}
+	if ((mpi3mr_cfg_get_dev_pg0(mrioc, &ioc_status, &dev_pg0,
+	    sizeof(dev_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE,
+	    mrioc->sas_hba.handle))) {
+		ioc_err(mrioc, "%s: device page0 read failed\n", __func__);
+		goto out;
+	}
+	if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		ioc_err(mrioc, "device page read failed for handle(0x%04x), with ioc_status(0x%04x) failure at %s:%d/%s()!\n",
+		    mrioc->sas_hba.handle, ioc_status, __FILE__, __LINE__,
+		    __func__);
+		goto out;
+	}
+	mrioc->sas_hba.enclosure_handle =
+	    le16_to_cpu(dev_pg0.enclosure_handle);
+	sasinf = &dev_pg0.device_specific.sas_sata_format;
+	mrioc->sas_hba.sas_address =
+	    le64_to_cpu(sasinf->sas_address);
+	ioc_info(mrioc,
+	    "host_add: handle(0x%04x), sas_addr(0x%016llx), phys(%d)\n",
+	    mrioc->sas_hba.handle,
+	    (unsigned long long) mrioc->sas_hba.sas_address,
+	    mrioc->sas_hba.num_phys);
+
+	if (mrioc->sas_hba.enclosure_handle) {
+		if (!(mpi3mr_cfg_get_enclosure_pg0(mrioc, &ioc_status,
+		    &encl_pg0, sizeof(dev_pg0),
+		    MPI3_ENCLOS_PGAD_FORM_HANDLE,
+		    mrioc->sas_hba.enclosure_handle)) &&
+		    (ioc_status == MPI3_IOCSTATUS_SUCCESS))
+			mrioc->sas_hba.enclosure_logical_id =
+				le64_to_cpu(encl_pg0.enclosure_logical_id);
+	}
+
+out:
+	kfree(sas_io_unit_pg0);
+}
+
+/**
+ * mpi3mr_sas_port_add - Expose the SAS device to the SAS TL
+ * @mrioc: Adapter instance reference
+ * @handle: Firmware device handle of the attached device
+ * @sas_address_parent: sas address of parent expander or host
+ * @hba_port: HBA port entry
+ *
+ * This function creates a new sas port object for the given end
+ * device matching sas address and hba_port and adds it to the
+ * sas_node's sas_port_list and expose the attached sas device
+ * to the SAS transport layer through sas_rphy_add.
+ *
+ * Returns a valid mpi3mr_sas_port reference or NULL.
+ */
+static struct mpi3mr_sas_port *mpi3mr_sas_port_add(struct mpi3mr_ioc *mrioc,
+	u16 handle, u64 sas_address_parent, struct mpi3mr_hba_port *hba_port)
+{
+	struct mpi3mr_sas_phy *mr_sas_phy, *next;
+	struct mpi3mr_sas_port *mr_sas_port;
+	unsigned long flags;
+	struct mpi3mr_sas_node *mr_sas_node;
+	struct sas_rphy *rphy;
+	struct mpi3mr_tgt_dev *tgtdev = NULL;
+	int i;
+	struct sas_port *port;
+
+	if (!hba_port) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return NULL;
+	}
+
+	mr_sas_port = kzalloc(sizeof(struct mpi3mr_sas_port), GFP_KERNEL);
+	if (!mr_sas_port)
+		return NULL;
+
+	INIT_LIST_HEAD(&mr_sas_port->port_list);
+	INIT_LIST_HEAD(&mr_sas_port->phy_list);
+	spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+	mr_sas_node = __mpi3mr_sas_node_find_by_sas_address(mrioc,
+	    sas_address_parent, hba_port);
+	spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+
+	if (!mr_sas_node) {
+		ioc_err(mrioc, "%s:could not find parent sas_address(0x%016llx)!\n",
+		    __func__, (unsigned long long)sas_address_parent);
+		goto out_fail;
+	}
+
+	if ((mpi3mr_set_identify(mrioc, handle,
+	    &mr_sas_port->remote_identify))) {
+		ioc_err(mrioc,  "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		goto out_fail;
+	}
+
+	if (mr_sas_port->remote_identify.device_type == SAS_PHY_UNUSED) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		goto out_fail;
+	}
+
+	mr_sas_port->hba_port = hba_port;
+	mpi3mr_sas_port_sanity_check(mrioc, mr_sas_node,
+	    mr_sas_port->remote_identify.sas_address, hba_port);
+
+	for (i = 0; i < mr_sas_node->num_phys; i++) {
+		if ((mr_sas_node->phy[i].remote_identify.sas_address !=
+		    mr_sas_port->remote_identify.sas_address) ||
+		    (mr_sas_node->phy[i].hba_port != hba_port))
+			continue;
+		list_add_tail(&mr_sas_node->phy[i].port_siblings,
+		    &mr_sas_port->phy_list);
+		mr_sas_port->num_phys++;
+		mr_sas_port->phy_mask |= (1 << i);
+	}
+
+	if (!mr_sas_port->num_phys) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		goto out_fail;
+	}
+
+	mr_sas_port->lowest_phy = ffs(mr_sas_port->phy_mask) - 1;
+
+	if (mr_sas_port->remote_identify.device_type == SAS_END_DEVICE) {
+		tgtdev = mpi3mr_get_tgtdev_by_addr(mrioc,
+		    mr_sas_port->remote_identify.sas_address,
+		    mr_sas_port->hba_port);
+
+		if (!tgtdev) {
+			ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+			    __FILE__, __LINE__, __func__);
+			goto out_fail;
+		}
+		tgtdev->dev_spec.sas_sata_inf.pend_sas_rphy_add = 1;
+	}
+
+	if (!mr_sas_node->parent_dev) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		goto out_fail;
+	}
+
+	port = sas_port_alloc_num(mr_sas_node->parent_dev);
+	if ((sas_port_add(port))) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		goto out_fail;
+	}
+
+	list_for_each_entry(mr_sas_phy, &mr_sas_port->phy_list,
+	    port_siblings) {
+		if ((mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO))
+			dev_info(&port->dev,
+			    "add: handle(0x%04x), sas_address(0x%016llx), phy(%d)\n",
+			    handle, (unsigned long long)
+			    mr_sas_port->remote_identify.sas_address,
+			    mr_sas_phy->phy_id);
+		sas_port_add_phy(port, mr_sas_phy->phy);
+		mr_sas_phy->phy_belongs_to_port = 1;
+		mr_sas_phy->hba_port = hba_port;
+	}
+
+	mr_sas_port->port = port;
+	if (mr_sas_port->remote_identify.device_type == SAS_END_DEVICE) {
+		rphy = sas_end_device_alloc(port);
+		tgtdev->dev_spec.sas_sata_inf.rphy = rphy;
+	} else {
+		rphy = sas_expander_alloc(port,
+		    mr_sas_port->remote_identify.device_type);
+	}
+	rphy->identify = mr_sas_port->remote_identify;
+
+	if (mrioc->current_event)
+		mrioc->current_event->pending_at_sml = 1;
+
+	if ((sas_rphy_add(rphy))) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+	}
+	if (mr_sas_port->remote_identify.device_type == SAS_END_DEVICE) {
+		tgtdev->dev_spec.sas_sata_inf.pend_sas_rphy_add = 0;
+		tgtdev->dev_spec.sas_sata_inf.sas_transport_attached = 1;
+		mpi3mr_tgtdev_put(tgtdev);
+	}
+
+	dev_info(&rphy->dev,
+	    "%s: added: handle(0x%04x), sas_address(0x%016llx)\n",
+	    __func__, handle, (unsigned long long)
+	    mr_sas_port->remote_identify.sas_address);
+
+	mr_sas_port->rphy = rphy;
+	spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+	list_add_tail(&mr_sas_port->port_list, &mr_sas_node->sas_port_list);
+	spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+
+	if (mrioc->current_event) {
+		mrioc->current_event->pending_at_sml = 0;
+		if (mrioc->current_event->discard)
+			mpi3mr_print_device_event_notice(mrioc, true);
+	}
+
+	/* fill in report manufacture */
+	if (mr_sas_port->remote_identify.device_type ==
+	    SAS_EDGE_EXPANDER_DEVICE ||
+	    mr_sas_port->remote_identify.device_type ==
+	    SAS_FANOUT_EXPANDER_DEVICE)
+		mpi3mr_report_manufacture(mrioc,
+		    mr_sas_port->remote_identify.sas_address,
+		    rphy_to_expander_device(rphy), hba_port->port_id);
+
+	return mr_sas_port;
+
+ out_fail:
+	list_for_each_entry_safe(mr_sas_phy, next, &mr_sas_port->phy_list,
+	    port_siblings)
+		list_del(&mr_sas_phy->port_siblings);
+	kfree(mr_sas_port);
+	return NULL;
+}
+
+/**
+ * mpi3mr_sas_port_remove - remove port from the list
+ * @mrioc: Adapter instance reference
+ * @sas_address: SAS address of attached device
+ * @sas_address_parent: SAS address of parent expander or host
+ * @hba_port: HBA port entry
+ *
+ * Removing object and freeing associated memory from the
+ * sas_port_list.
+ *
+ * Return: None
+ */
+static void mpi3mr_sas_port_remove(struct mpi3mr_ioc *mrioc, u64 sas_address,
+	u64 sas_address_parent, struct mpi3mr_hba_port *hba_port)
+{
+	int i;
+	unsigned long flags;
+	struct mpi3mr_sas_port *mr_sas_port, *next;
+	struct mpi3mr_sas_node *mr_sas_node;
+	u8 found = 0;
+	struct mpi3mr_sas_phy *mr_sas_phy, *next_phy;
+	struct mpi3mr_hba_port *srch_port, *hba_port_next = NULL;
+
+	if (!hba_port)
+		return;
+
+	spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+	mr_sas_node = __mpi3mr_sas_node_find_by_sas_address(mrioc,
+	    sas_address_parent, hba_port);
+	if (!mr_sas_node) {
+		spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+		return;
+	}
+	list_for_each_entry_safe(mr_sas_port, next, &mr_sas_node->sas_port_list,
+	    port_list) {
+		if (mr_sas_port->remote_identify.sas_address != sas_address)
+			continue;
+		if (mr_sas_port->hba_port != hba_port)
+			continue;
+		found = 1;
+		list_del(&mr_sas_port->port_list);
+		goto out;
+	}
+
+ out:
+	if (!found) {
+		spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+		return;
+	}
+
+	if (mr_sas_node->host_node) {
+		list_for_each_entry_safe(srch_port, hba_port_next,
+		    &mrioc->hba_port_table_list, list) {
+			if (srch_port != hba_port)
+				continue;
+			ioc_info(mrioc,
+			    "removing hba_port entry: %p port: %d from hba_port list\n",
+			    srch_port, srch_port->port_id);
+			list_del(&hba_port->list);
+			kfree(hba_port);
+			break;
+		}
+	}
+
+	for (i = 0; i < mr_sas_node->num_phys; i++) {
+		if (mr_sas_node->phy[i].remote_identify.sas_address ==
+		    sas_address)
+			memset(&mr_sas_node->phy[i].remote_identify, 0,
+			    sizeof(struct sas_identify));
+	}
+
+	spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+
+	if (mrioc->current_event)
+		mrioc->current_event->pending_at_sml = 1;
+
+	list_for_each_entry_safe(mr_sas_phy, next_phy,
+	    &mr_sas_port->phy_list, port_siblings) {
+		if ((mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO))
+			dev_info(&mr_sas_port->port->dev,
+			    "remove: sas_address(0x%016llx), phy(%d)\n",
+			    (unsigned long long)
+			    mr_sas_port->remote_identify.sas_address,
+			    mr_sas_phy->phy_id);
+		mr_sas_phy->phy_belongs_to_port = 0;
+		if (!mrioc->stop_drv_processing)
+			sas_port_delete_phy(mr_sas_port->port,
+			    mr_sas_phy->phy);
+		list_del(&mr_sas_phy->port_siblings);
+	}
+	if (!mrioc->stop_drv_processing)
+		sas_port_delete(mr_sas_port->port);
+	ioc_info(mrioc, "%s: removed sas_address(0x%016llx)\n",
+	    __func__, (unsigned long long)sas_address);
+
+	if (mrioc->current_event) {
+		mrioc->current_event->pending_at_sml = 0;
+		if (mrioc->current_event->discard)
+			mpi3mr_print_device_event_notice(mrioc, false);
+	}
+
+	kfree(mr_sas_port);
+}
+
+/**
+ * struct host_port - host port details
+ * @sas_address: SAS Address of the attached device
+ * @phy_mask: phy mask of host port
+ * @handle: Device Handle of attached device
+ * @iounit_port_id: port ID
+ * @used: host port is already matched with sas port from sas_port_list
+ * @lowest_phy: lowest phy ID of host port
+ */
+struct host_port {
+	u64	sas_address;
+	u32	phy_mask;
+	u16	handle;
+	u8	iounit_port_id;
+	u8	used;
+	u8	lowest_phy;
+};
+
+/**
+ * mpi3mr_update_mr_sas_port - update sas port objects during reset
+ * @mrioc: Adapter instance reference
+ * @h_port: host_port object
+ * @mr_sas_port: sas_port objects which needs to be updated
+ *
+ * Update the port ID of sas port object. Also add the phys if new phys got
+ * added to current sas port and remove the phys if some phys are moved
+ * out of the current sas port.
+ *
+ * Return: Nothing.
+ */
+static void
+mpi3mr_update_mr_sas_port(struct mpi3mr_ioc *mrioc, struct host_port *h_port,
+	struct mpi3mr_sas_port *mr_sas_port)
+{
+	struct mpi3mr_sas_phy *mr_sas_phy;
+	u32 phy_mask_xor;
+	u64 phys_to_be_added, phys_to_be_removed;
+	int i;
+
+	h_port->used = 1;
+	mr_sas_port->marked_responding = 1;
+
+	dev_info(&mr_sas_port->port->dev,
+	    "sas_address(0x%016llx), old: port_id %d phy_mask 0x%x, new: port_id %d phy_mask:0x%x\n",
+	    mr_sas_port->remote_identify.sas_address,
+	    mr_sas_port->hba_port->port_id, mr_sas_port->phy_mask,
+	    h_port->iounit_port_id, h_port->phy_mask);
+
+	mr_sas_port->hba_port->port_id = h_port->iounit_port_id;
+	mr_sas_port->hba_port->flags &= ~MPI3MR_HBA_PORT_FLAG_DIRTY;
+
+	/* Get the newly added phys bit map & removed phys bit map */
+	phy_mask_xor = mr_sas_port->phy_mask ^ h_port->phy_mask;
+	phys_to_be_added = h_port->phy_mask & phy_mask_xor;
+	phys_to_be_removed = mr_sas_port->phy_mask & phy_mask_xor;
+
+	/*
+	 * Register these new phys to current mr_sas_port's port.
+	 * if these phys are previously registered with another port
+	 * then delete these phys from that port first.
+	 */
+	for_each_set_bit(i, (ulong *) &phys_to_be_added, BITS_PER_TYPE(u32)) {
+		mr_sas_phy = &mrioc->sas_hba.phy[i];
+		if (mr_sas_phy->phy_belongs_to_port)
+			mpi3mr_del_phy_from_an_existing_port(mrioc,
+			    &mrioc->sas_hba, mr_sas_phy);
+		mpi3mr_add_phy_to_an_existing_port(mrioc,
+		    &mrioc->sas_hba, mr_sas_phy,
+		    mr_sas_port->remote_identify.sas_address,
+		    mr_sas_port->hba_port);
+	}
+
+	/* Delete the phys which are not part of current mr_sas_port's port. */
+	for_each_set_bit(i, (ulong *) &phys_to_be_removed, BITS_PER_TYPE(u32)) {
+		mr_sas_phy = &mrioc->sas_hba.phy[i];
+		if (mr_sas_phy->phy_belongs_to_port)
+			mpi3mr_del_phy_from_an_existing_port(mrioc,
+			    &mrioc->sas_hba, mr_sas_phy);
+	}
+}
+
+/**
+ * mpi3mr_refresh_sas_ports - update host's sas ports during reset
+ * @mrioc: Adapter instance reference
+ *
+ * Update the host's sas ports during reset by checking whether
+ * sas ports are still intact or not. Add/remove phys if any hba
+ * phys are (moved in)/(moved out) of sas port. Also update
+ * io_unit_port if it got changed during reset.
+ *
+ * Return: Nothing.
+ */
+void
+mpi3mr_refresh_sas_ports(struct mpi3mr_ioc *mrioc)
+{
+	struct host_port h_port[32];
+	int i, j, found, host_port_count = 0, port_idx;
+	u16 sz, attached_handle, ioc_status;
+	struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0 = NULL;
+	struct mpi3_device_page0 dev_pg0;
+	struct mpi3_device0_sas_sata_format *sasinf;
+	struct mpi3mr_sas_port *mr_sas_port;
+
+	sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) +
+		(mrioc->sas_hba.num_phys *
+		 sizeof(struct mpi3_sas_io_unit0_phy_data));
+	sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL);
+	if (!sas_io_unit_pg0)
+		return;
+	if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		goto out;
+	}
+
+	/* Create a new expander port table */
+	for (i = 0; i < mrioc->sas_hba.num_phys; i++) {
+		attached_handle = le16_to_cpu(
+		    sas_io_unit_pg0->phy_data[i].attached_dev_handle);
+		if (!attached_handle)
+			continue;
+		found = 0;
+		for (j = 0; j < host_port_count; j++) {
+			if (h_port[j].handle == attached_handle) {
+				h_port[j].phy_mask |= (1 << i);
+				found = 1;
+				break;
+			}
+		}
+		if (found)
+			continue;
+		if ((mpi3mr_cfg_get_dev_pg0(mrioc, &ioc_status, &dev_pg0,
+		    sizeof(dev_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE,
+		    attached_handle))) {
+			dprint_reset(mrioc,
+			    "failed to read dev_pg0 for handle(0x%04x) at %s:%d/%s()!\n",
+			    attached_handle, __FILE__, __LINE__, __func__);
+			continue;
+		}
+		if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+			dprint_reset(mrioc,
+			    "ioc_status(0x%x) while reading dev_pg0 for handle(0x%04x) at %s:%d/%s()!\n",
+			    ioc_status, attached_handle,
+			    __FILE__, __LINE__, __func__);
+			continue;
+		}
+		sasinf = &dev_pg0.device_specific.sas_sata_format;
+
+		port_idx = host_port_count;
+		h_port[port_idx].sas_address = le64_to_cpu(sasinf->sas_address);
+		h_port[port_idx].handle = attached_handle;
+		h_port[port_idx].phy_mask = (1 << i);
+		h_port[port_idx].iounit_port_id = sas_io_unit_pg0->phy_data[i].io_unit_port;
+		h_port[port_idx].lowest_phy = sasinf->phy_num;
+		h_port[port_idx].used = 0;
+		host_port_count++;
+	}
+
+	if (!host_port_count)
+		goto out;
+
+	if (mrioc->logging_level & MPI3_DEBUG_RESET) {
+		ioc_info(mrioc, "Host port details before reset\n");
+		list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
+		    port_list) {
+			ioc_info(mrioc,
+			    "port_id:%d, sas_address:(0x%016llx), phy_mask:(0x%x), lowest phy id:%d\n",
+			    mr_sas_port->hba_port->port_id,
+			    mr_sas_port->remote_identify.sas_address,
+			    mr_sas_port->phy_mask, mr_sas_port->lowest_phy);
+		}
+		mr_sas_port = NULL;
+		ioc_info(mrioc, "Host port details after reset\n");
+		for (i = 0; i < host_port_count; i++) {
+			ioc_info(mrioc,
+			    "port_id:%d, sas_address:(0x%016llx), phy_mask:(0x%x), lowest phy id:%d\n",
+			    h_port[i].iounit_port_id, h_port[i].sas_address,
+			    h_port[i].phy_mask, h_port[i].lowest_phy);
+		}
+	}
+
+	/* mark all host sas port entries as dirty */
+	list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
+	    port_list) {
+		mr_sas_port->marked_responding = 0;
+		mr_sas_port->hba_port->flags |= MPI3MR_HBA_PORT_FLAG_DIRTY;
+	}
+
+	/* First check for matching lowest phy */
+	for (i = 0; i < host_port_count; i++) {
+		mr_sas_port = NULL;
+		list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
+		    port_list) {
+			if (mr_sas_port->marked_responding)
+				continue;
+			if (h_port[i].sas_address != mr_sas_port->remote_identify.sas_address)
+				continue;
+			if (h_port[i].lowest_phy == mr_sas_port->lowest_phy) {
+				mpi3mr_update_mr_sas_port(mrioc, &h_port[i], mr_sas_port);
+				break;
+			}
+		}
+	}
+
+	/* In case if lowest phy is got enabled or disabled during reset */
+	for (i = 0; i < host_port_count; i++) {
+		if (h_port[i].used)
+			continue;
+		mr_sas_port = NULL;
+		list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
+		    port_list) {
+			if (mr_sas_port->marked_responding)
+				continue;
+			if (h_port[i].sas_address != mr_sas_port->remote_identify.sas_address)
+				continue;
+			if (h_port[i].phy_mask & mr_sas_port->phy_mask) {
+				mpi3mr_update_mr_sas_port(mrioc, &h_port[i], mr_sas_port);
+				break;
+			}
+		}
+	}
+
+	/* In case if expander cable is removed & connected to another HBA port during reset */
+	for (i = 0; i < host_port_count; i++) {
+		if (h_port[i].used)
+			continue;
+		mr_sas_port = NULL;
+		list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
+		    port_list) {
+			if (mr_sas_port->marked_responding)
+				continue;
+			if (h_port[i].sas_address != mr_sas_port->remote_identify.sas_address)
+				continue;
+			mpi3mr_update_mr_sas_port(mrioc, &h_port[i], mr_sas_port);
+			break;
+		}
+	}
+out:
+	kfree(sas_io_unit_pg0);
+}
+
+/**
+ * mpi3mr_refresh_expanders - Refresh expander device exposure
+ * @mrioc: Adapter instance reference
+ *
+ * This is executed post controller reset to identify any
+ * missing expander devices during reset and remove from the upper layers
+ * or expose any newly detected expander device to the upper layers.
+ *
+ * Return: Nothing.
+ */
+void
+mpi3mr_refresh_expanders(struct mpi3mr_ioc *mrioc)
+{
+	struct mpi3mr_sas_node *sas_expander, *sas_expander_next;
+	struct mpi3_sas_expander_page0 expander_pg0;
+	u16 ioc_status, handle;
+	u64 sas_address;
+	int i;
+	unsigned long flags;
+	struct mpi3mr_hba_port *hba_port;
+
+	spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+	list_for_each_entry(sas_expander, &mrioc->sas_expander_list, list) {
+		sas_expander->non_responding = 1;
+	}
+	spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+
+	sas_expander = NULL;
+
+	handle = 0xffff;
+
+	/* Search for responding expander devices and add them if they are newly got added */
+	while (true) {
+		if ((mpi3mr_cfg_get_sas_exp_pg0(mrioc, &ioc_status, &expander_pg0,
+		    sizeof(struct mpi3_sas_expander_page0),
+		    MPI3_SAS_EXPAND_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
+			dprint_reset(mrioc,
+			    "failed to read exp pg0 for handle(0x%04x) at %s:%d/%s()!\n",
+			    handle, __FILE__, __LINE__, __func__);
+			break;
+		}
+
+		if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+			dprint_reset(mrioc,
+			   "ioc_status(0x%x) while reading exp pg0 for handle:(0x%04x), %s:%d/%s()!\n",
+			   ioc_status, handle, __FILE__, __LINE__, __func__);
+			break;
+		}
+
+		handle = le16_to_cpu(expander_pg0.dev_handle);
+		sas_address = le64_to_cpu(expander_pg0.sas_address);
+		hba_port = mpi3mr_get_hba_port_by_id(mrioc, expander_pg0.io_unit_port);
+
+		if (!hba_port) {
+			mpi3mr_sas_host_refresh(mrioc);
+			mpi3mr_expander_add(mrioc, handle);
+			continue;
+		}
+
+		spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+		sas_expander =
+		    mpi3mr_expander_find_by_sas_address(mrioc,
+		    sas_address, hba_port);
+		spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+
+		if (!sas_expander) {
+			mpi3mr_sas_host_refresh(mrioc);
+			mpi3mr_expander_add(mrioc, handle);
+			continue;
+		}
+
+		sas_expander->non_responding = 0;
+		if (sas_expander->handle == handle)
+			continue;
+
+		sas_expander->handle = handle;
+		for (i = 0 ; i < sas_expander->num_phys ; i++)
+			sas_expander->phy[i].handle = handle;
+	}
+
+	/*
+	 * Delete non responding expander devices and the corresponding
+	 * hba_port if the non responding expander device's parent device
+	 * is a host node.
+	 */
+	sas_expander = NULL;
+	spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+	list_for_each_entry_safe_reverse(sas_expander, sas_expander_next,
+	    &mrioc->sas_expander_list, list) {
+		if (sas_expander->non_responding) {
+			spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+			mpi3mr_expander_node_remove(mrioc, sas_expander);
+			spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+		}
+	}
+	spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+}
+
+/**
+ * mpi3mr_expander_node_add - insert an expander to the list.
+ * @mrioc: Adapter instance reference
+ * @sas_expander: Expander sas node
+ * Context: This function will acquire sas_node_lock.
+ *
+ * Adding new object to the ioc->sas_expander_list.
+ *
+ * Return: None.
+ */
+static void mpi3mr_expander_node_add(struct mpi3mr_ioc *mrioc,
+	struct mpi3mr_sas_node *sas_expander)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+	list_add_tail(&sas_expander->list, &mrioc->sas_expander_list);
+	spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+}
+
+/**
+ * mpi3mr_expander_add -  Create expander object
+ * @mrioc: Adapter instance reference
+ * @handle: Expander firmware device handle
+ *
+ * This function creating expander object, stored in
+ * sas_expander_list and expose it to the SAS transport
+ * layer.
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+int mpi3mr_expander_add(struct mpi3mr_ioc *mrioc, u16 handle)
+{
+	struct mpi3mr_sas_node *sas_expander;
+	struct mpi3mr_enclosure_node *enclosure_dev;
+	struct mpi3_sas_expander_page0 expander_pg0;
+	struct mpi3_sas_expander_page1 expander_pg1;
+	u16 ioc_status, parent_handle, temp_handle;
+	u64 sas_address, sas_address_parent = 0;
+	int i;
+	unsigned long flags;
+	u8 port_id, link_rate;
+	struct mpi3mr_sas_port *mr_sas_port = NULL;
+	struct mpi3mr_hba_port *hba_port;
+	u32 phynum_handle;
+	int rc = 0;
+
+	if (!handle)
+		return -1;
+
+	if (mrioc->reset_in_progress)
+		return -1;
+
+	if ((mpi3mr_cfg_get_sas_exp_pg0(mrioc, &ioc_status, &expander_pg0,
+	    sizeof(expander_pg0), MPI3_SAS_EXPAND_PGAD_FORM_HANDLE, handle))) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -1;
+	}
+
+	if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -1;
+	}
+
+	parent_handle = le16_to_cpu(expander_pg0.parent_dev_handle);
+	if (mpi3mr_get_sas_address(mrioc, parent_handle, &sas_address_parent)
+	    != 0) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -1;
+	}
+
+	port_id = expander_pg0.io_unit_port;
+	hba_port = mpi3mr_get_hba_port_by_id(mrioc, port_id);
+	if (!hba_port) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -1;
+	}
+
+	if (sas_address_parent != mrioc->sas_hba.sas_address) {
+		spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+		sas_expander =
+		   mpi3mr_expander_find_by_sas_address(mrioc,
+		    sas_address_parent, hba_port);
+		spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+		if (!sas_expander) {
+			rc = mpi3mr_expander_add(mrioc, parent_handle);
+			if (rc != 0)
+				return rc;
+		} else {
+			/*
+			 * When there is a parent expander present, update it's
+			 * phys where child expander is connected with the link
+			 * speed, attached dev handle and sas address.
+			 */
+			for (i = 0 ; i < sas_expander->num_phys ; i++) {
+				phynum_handle =
+				    (i << MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT) |
+				    parent_handle;
+				if (mpi3mr_cfg_get_sas_exp_pg1(mrioc,
+				    &ioc_status, &expander_pg1,
+				    sizeof(expander_pg1),
+				    MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM,
+				    phynum_handle)) {
+					ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+					    __FILE__, __LINE__, __func__);
+					rc = -1;
+					return rc;
+				}
+				if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+					ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+					    __FILE__, __LINE__, __func__);
+					rc = -1;
+					return rc;
+				}
+				temp_handle = le16_to_cpu(
+				    expander_pg1.attached_dev_handle);
+				if (temp_handle != handle)
+					continue;
+				link_rate = (expander_pg1.negotiated_link_rate &
+				    MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
+				    MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT;
+				mpi3mr_update_links(mrioc, sas_address_parent,
+				    handle, i, link_rate, hba_port);
+			}
+		}
+	}
+
+	spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+	sas_address = le64_to_cpu(expander_pg0.sas_address);
+	sas_expander = mpi3mr_expander_find_by_sas_address(mrioc,
+	    sas_address, hba_port);
+	spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+
+	if (sas_expander)
+		return 0;
+
+	sas_expander = kzalloc(sizeof(struct mpi3mr_sas_node),
+	    GFP_KERNEL);
+	if (!sas_expander)
+		return -1;
+
+	sas_expander->handle = handle;
+	sas_expander->num_phys = expander_pg0.num_phys;
+	sas_expander->sas_address_parent = sas_address_parent;
+	sas_expander->sas_address = sas_address;
+	sas_expander->hba_port = hba_port;
+
+	ioc_info(mrioc,
+	    "expander_add: handle(0x%04x), parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n",
+	    handle, parent_handle, (unsigned long long)
+	    sas_expander->sas_address, sas_expander->num_phys);
+
+	if (!sas_expander->num_phys) {
+		rc = -1;
+		goto out_fail;
+	}
+	sas_expander->phy = kcalloc(sas_expander->num_phys,
+	    sizeof(struct mpi3mr_sas_phy), GFP_KERNEL);
+	if (!sas_expander->phy) {
+		rc = -1;
+		goto out_fail;
+	}
+
+	INIT_LIST_HEAD(&sas_expander->sas_port_list);
+	mr_sas_port = mpi3mr_sas_port_add(mrioc, handle, sas_address_parent,
+	    sas_expander->hba_port);
+	if (!mr_sas_port) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		rc = -1;
+		goto out_fail;
+	}
+	sas_expander->parent_dev = &mr_sas_port->rphy->dev;
+	sas_expander->rphy = mr_sas_port->rphy;
+
+	for (i = 0 ; i < sas_expander->num_phys ; i++) {
+		phynum_handle = (i << MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT) |
+		    handle;
+		if (mpi3mr_cfg_get_sas_exp_pg1(mrioc, &ioc_status,
+		    &expander_pg1, sizeof(expander_pg1),
+		    MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM,
+		    phynum_handle)) {
+			ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+			    __FILE__, __LINE__, __func__);
+			rc = -1;
+			goto out_fail;
+		}
+		if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+			ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+			    __FILE__, __LINE__, __func__);
+			rc = -1;
+			goto out_fail;
+		}
+
+		sas_expander->phy[i].handle = handle;
+		sas_expander->phy[i].phy_id = i;
+		sas_expander->phy[i].hba_port = hba_port;
+
+		if ((mpi3mr_add_expander_phy(mrioc, &sas_expander->phy[i],
+		    expander_pg1, sas_expander->parent_dev))) {
+			ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+			    __FILE__, __LINE__, __func__);
+			rc = -1;
+			goto out_fail;
+		}
+	}
+
+	if (sas_expander->enclosure_handle) {
+		enclosure_dev =
+			mpi3mr_enclosure_find_by_handle(mrioc,
+						sas_expander->enclosure_handle);
+		if (enclosure_dev)
+			sas_expander->enclosure_logical_id = le64_to_cpu(
+			    enclosure_dev->pg0.enclosure_logical_id);
+	}
+
+	mpi3mr_expander_node_add(mrioc, sas_expander);
+	return 0;
+
+out_fail:
+
+	if (mr_sas_port)
+		mpi3mr_sas_port_remove(mrioc,
+		    sas_expander->sas_address,
+		    sas_address_parent, sas_expander->hba_port);
+	kfree(sas_expander->phy);
+	kfree(sas_expander);
+	return rc;
+}
+
+/**
+ * mpi3mr_expander_node_remove - recursive removal of expander.
+ * @mrioc: Adapter instance reference
+ * @sas_expander: Expander device object
+ *
+ * Removes expander object and freeing associated memory from
+ * the sas_expander_list and removes the same from SAS TL, if
+ * one of the attached device is an expander then it recursively
+ * removes the expander device too.
+ *
+ * Return nothing.
+ */
+static void mpi3mr_expander_node_remove(struct mpi3mr_ioc *mrioc,
+	struct mpi3mr_sas_node *sas_expander)
+{
+	struct mpi3mr_sas_port *mr_sas_port, *next;
+	unsigned long flags;
+	u8 port_id;
+
+	/* remove sibling ports attached to this expander */
+	list_for_each_entry_safe(mr_sas_port, next,
+	   &sas_expander->sas_port_list, port_list) {
+		if (mrioc->reset_in_progress)
+			return;
+		if (mr_sas_port->remote_identify.device_type ==
+		    SAS_END_DEVICE)
+			mpi3mr_remove_device_by_sas_address(mrioc,
+			    mr_sas_port->remote_identify.sas_address,
+			    mr_sas_port->hba_port);
+		else if (mr_sas_port->remote_identify.device_type ==
+		    SAS_EDGE_EXPANDER_DEVICE ||
+		    mr_sas_port->remote_identify.device_type ==
+		    SAS_FANOUT_EXPANDER_DEVICE)
+			mpi3mr_expander_remove(mrioc,
+			    mr_sas_port->remote_identify.sas_address,
+			    mr_sas_port->hba_port);
+	}
+
+	port_id = sas_expander->hba_port->port_id;
+	mpi3mr_sas_port_remove(mrioc, sas_expander->sas_address,
+	    sas_expander->sas_address_parent, sas_expander->hba_port);
+
+	ioc_info(mrioc, "expander_remove: handle(0x%04x), sas_addr(0x%016llx), port:%d\n",
+	    sas_expander->handle, (unsigned long long)
+	    sas_expander->sas_address, port_id);
+
+	spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+	list_del(&sas_expander->list);
+	spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+
+	kfree(sas_expander->phy);
+	kfree(sas_expander);
+}
+
+/**
+ * mpi3mr_expander_remove - Remove expander object
+ * @mrioc: Adapter instance reference
+ * @sas_address: Remove expander sas_address
+ * @hba_port: HBA port reference
+ *
+ * This function remove expander object, stored in
+ * mrioc->sas_expander_list and removes it from the SAS TL by
+ * calling mpi3mr_expander_node_remove().
+ *
+ * Return: None
+ */
+void mpi3mr_expander_remove(struct mpi3mr_ioc *mrioc, u64 sas_address,
+	struct mpi3mr_hba_port *hba_port)
+{
+	struct mpi3mr_sas_node *sas_expander;
+	unsigned long flags;
+
+	if (mrioc->reset_in_progress)
+		return;
+
+	if (!hba_port)
+		return;
+
+	spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+	sas_expander = mpi3mr_expander_find_by_sas_address(mrioc, sas_address,
+	    hba_port);
+	spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+	if (sas_expander)
+		mpi3mr_expander_node_remove(mrioc, sas_expander);
+
+}
+
+/**
+ * mpi3mr_get_sas_negotiated_logical_linkrate - get linkrate
+ * @mrioc: Adapter instance reference
+ * @tgtdev: Target device
+ *
+ * This function identifies whether the target device is
+ * attached directly or through expander and issues sas phy
+ * page0 or expander phy page1 and gets the link rate, if there
+ * is any failure in reading the pages then this returns link
+ * rate of 1.5.
+ *
+ * Return: logical link rate.
+ */
+static u8 mpi3mr_get_sas_negotiated_logical_linkrate(struct mpi3mr_ioc *mrioc,
+	struct mpi3mr_tgt_dev *tgtdev)
+{
+	u8 link_rate = MPI3_SAS_NEG_LINK_RATE_1_5, phy_number;
+	struct mpi3_sas_expander_page1 expander_pg1;
+	struct mpi3_sas_phy_page0 phy_pg0;
+	u32 phynum_handle;
+	u16 ioc_status;
+
+	phy_number = tgtdev->dev_spec.sas_sata_inf.phy_id;
+	if (!(tgtdev->devpg0_flag & MPI3_DEVICE0_FLAGS_ATT_METHOD_DIR_ATTACHED)) {
+		phynum_handle = ((phy_number<<MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT)
+				 | tgtdev->parent_handle);
+		if (mpi3mr_cfg_get_sas_exp_pg1(mrioc, &ioc_status,
+		    &expander_pg1, sizeof(expander_pg1),
+		    MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM,
+		    phynum_handle)) {
+			ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+			    __FILE__, __LINE__, __func__);
+			goto out;
+		}
+		if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+			ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+			    __FILE__, __LINE__, __func__);
+			goto out;
+		}
+		link_rate = (expander_pg1.negotiated_link_rate &
+			     MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
+			MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT;
+		goto out;
+	}
+	if (mpi3mr_cfg_get_sas_phy_pg0(mrioc, &ioc_status, &phy_pg0,
+	    sizeof(struct mpi3_sas_phy_page0),
+	    MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, phy_number)) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		goto out;
+	}
+	if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		goto out;
+	}
+	link_rate = (phy_pg0.negotiated_link_rate &
+		     MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
+		MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT;
+out:
+	return link_rate;
+}
+
+/**
+ * mpi3mr_report_tgtdev_to_sas_transport - expose dev to SAS TL
+ * @mrioc: Adapter instance reference
+ * @tgtdev: Target device
+ *
+ * This function exposes the target device after
+ * preparing host_phy, setting up link rate etc.
+ *
+ * Return: 0 on success, non-zero for failure.
+ */
+int mpi3mr_report_tgtdev_to_sas_transport(struct mpi3mr_ioc *mrioc,
+	struct mpi3mr_tgt_dev *tgtdev)
+{
+	int retval = 0;
+	u8 link_rate, parent_phy_number;
+	u64 sas_address_parent, sas_address;
+	struct mpi3mr_hba_port *hba_port;
+	u8 port_id;
+
+	if ((tgtdev->dev_type != MPI3_DEVICE_DEVFORM_SAS_SATA) ||
+	    !mrioc->sas_transport_enabled)
+		return -1;
+
+	sas_address = tgtdev->dev_spec.sas_sata_inf.sas_address;
+	if (!mrioc->sas_hba.num_phys)
+		mpi3mr_sas_host_add(mrioc);
+	else
+		mpi3mr_sas_host_refresh(mrioc);
+
+	if (mpi3mr_get_sas_address(mrioc, tgtdev->parent_handle,
+	    &sas_address_parent) != 0) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -1;
+	}
+	tgtdev->dev_spec.sas_sata_inf.sas_address_parent = sas_address_parent;
+
+	parent_phy_number = tgtdev->dev_spec.sas_sata_inf.phy_id;
+	port_id = tgtdev->io_unit_port;
+
+	hba_port = mpi3mr_get_hba_port_by_id(mrioc, port_id);
+	if (!hba_port) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -1;
+	}
+	tgtdev->dev_spec.sas_sata_inf.hba_port = hba_port;
+
+	link_rate = mpi3mr_get_sas_negotiated_logical_linkrate(mrioc, tgtdev);
+
+	mpi3mr_update_links(mrioc, sas_address_parent, tgtdev->dev_handle,
+	    parent_phy_number, link_rate, hba_port);
+
+	tgtdev->host_exposed = 1;
+	if (!mpi3mr_sas_port_add(mrioc, tgtdev->dev_handle,
+	    sas_address_parent, hba_port)) {
+		tgtdev->host_exposed = 0;
+		retval = -1;
+	} else if ((!tgtdev->starget)) {
+		if (!mrioc->is_driver_loading)
+			mpi3mr_sas_port_remove(mrioc, sas_address,
+			    sas_address_parent, hba_port);
+		tgtdev->host_exposed = 0;
+		retval = -1;
+	}
+	return retval;
+}
+
+/**
+ * mpi3mr_remove_tgtdev_from_sas_transport - remove from SAS TL
+ * @mrioc: Adapter instance reference
+ * @tgtdev: Target device
+ *
+ * This function removes the target device
+ *
+ * Return: None.
+ */
+void mpi3mr_remove_tgtdev_from_sas_transport(struct mpi3mr_ioc *mrioc,
+	struct mpi3mr_tgt_dev *tgtdev)
+{
+	u64 sas_address_parent, sas_address;
+	struct mpi3mr_hba_port *hba_port;
+
+	if ((tgtdev->dev_type != MPI3_DEVICE_DEVFORM_SAS_SATA) ||
+	    !mrioc->sas_transport_enabled)
+		return;
+
+	hba_port = tgtdev->dev_spec.sas_sata_inf.hba_port;
+	sas_address = tgtdev->dev_spec.sas_sata_inf.sas_address;
+	sas_address_parent = tgtdev->dev_spec.sas_sata_inf.sas_address_parent;
+	mpi3mr_sas_port_remove(mrioc, sas_address, sas_address_parent,
+	    hba_port);
+	tgtdev->host_exposed = 0;
+}
+
+/**
+ * mpi3mr_get_port_id_by_sas_phy -  Get port ID of the given phy
+ * @phy: SAS transport layer phy object
+ *
+ * Return: Port number for valid ID else 0xFFFF
+ */
+static inline u8 mpi3mr_get_port_id_by_sas_phy(struct sas_phy *phy)
+{
+	u8 port_id = 0xFF;
+	struct mpi3mr_hba_port *hba_port = phy->hostdata;
+
+	if (hba_port)
+		port_id = hba_port->port_id;
+
+	return port_id;
+}
+
+/**
+ * mpi3mr_get_port_id_by_rphy - Get Port number from SAS rphy
+ *
+ * @mrioc: Adapter instance reference
+ * @rphy: SAS transport layer remote phy object
+ *
+ * Retrieves HBA port number in which the device pointed by the
+ * rphy object is attached with.
+ *
+ * Return: Valid port number on success else OxFFFF.
+ */
+static u8 mpi3mr_get_port_id_by_rphy(struct mpi3mr_ioc *mrioc, struct sas_rphy *rphy)
+{
+	struct mpi3mr_sas_node *sas_expander;
+	struct mpi3mr_tgt_dev *tgtdev;
+	unsigned long flags;
+	u8 port_id = 0xFF;
+
+	if (!rphy)
+		return port_id;
+
+	if (rphy->identify.device_type == SAS_EDGE_EXPANDER_DEVICE ||
+	    rphy->identify.device_type == SAS_FANOUT_EXPANDER_DEVICE) {
+		spin_lock_irqsave(&mrioc->sas_node_lock, flags);
+		list_for_each_entry(sas_expander, &mrioc->sas_expander_list,
+		    list) {
+			if (sas_expander->rphy == rphy) {
+				port_id = sas_expander->hba_port->port_id;
+				break;
+			}
+		}
+		spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
+	} else if (rphy->identify.device_type == SAS_END_DEVICE) {
+		spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
+
+		tgtdev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
+			    rphy->identify.sas_address, rphy);
+		if (tgtdev) {
+			port_id =
+				tgtdev->dev_spec.sas_sata_inf.hba_port->port_id;
+			mpi3mr_tgtdev_put(tgtdev);
+		}
+		spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
+	}
+	return port_id;
+}
+
+static inline struct mpi3mr_ioc *phy_to_mrioc(struct sas_phy *phy)
+{
+	struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
+
+	return shost_priv(shost);
+}
+
+static inline struct mpi3mr_ioc *rphy_to_mrioc(struct sas_rphy *rphy)
+{
+	struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent);
+
+	return shost_priv(shost);
+}
+
+/* report phy error log structure */
+struct phy_error_log_request {
+	u8 smp_frame_type; /* 0x40 */
+	u8 function; /* 0x11 */
+	u8 allocated_response_length;
+	u8 request_length; /* 02 */
+	u8 reserved_1[5];
+	u8 phy_identifier;
+	u8 reserved_2[2];
+};
+
+/* report phy error log reply structure */
+struct phy_error_log_reply {
+	u8 smp_frame_type; /* 0x41 */
+	u8 function; /* 0x11 */
+	u8 function_result;
+	u8 response_length;
+	__be16 expander_change_count;
+	u8 reserved_1[3];
+	u8 phy_identifier;
+	u8 reserved_2[2];
+	__be32 invalid_dword;
+	__be32 running_disparity_error;
+	__be32 loss_of_dword_sync;
+	__be32 phy_reset_problem;
+};
+
+
+/**
+ * mpi3mr_get_expander_phy_error_log - return expander counters:
+ * @mrioc: Adapter instance reference
+ * @phy: The SAS transport layer phy object
+ *
+ * Return: 0 for success, non-zero for failure.
+ *
+ */
+static int mpi3mr_get_expander_phy_error_log(struct mpi3mr_ioc *mrioc,
+	struct sas_phy *phy)
+{
+	struct mpi3_smp_passthrough_request mpi_request;
+	struct mpi3_smp_passthrough_reply mpi_reply;
+	struct phy_error_log_request *phy_error_log_request;
+	struct phy_error_log_reply *phy_error_log_reply;
+	int rc;
+	void *psge;
+	void *data_out = NULL;
+	dma_addr_t data_out_dma, data_in_dma;
+	u32 data_out_sz, data_in_sz, sz;
+	u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
+	u16 request_sz = sizeof(struct mpi3_smp_passthrough_request);
+	u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply);
+	u16 ioc_status;
+
+	if (mrioc->reset_in_progress) {
+		ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
+		return -EFAULT;
+	}
+
+	data_out_sz = sizeof(struct phy_error_log_request);
+	data_in_sz = sizeof(struct phy_error_log_reply);
+	sz = data_out_sz + data_in_sz;
+	data_out = dma_alloc_coherent(&mrioc->pdev->dev, sz, &data_out_dma,
+	    GFP_KERNEL);
+	if (!data_out) {
+		rc = -ENOMEM;
+		goto out;
+	}
+
+	data_in_dma = data_out_dma + data_out_sz;
+	phy_error_log_reply = data_out + data_out_sz;
+
+	rc = -EINVAL;
+	memset(data_out, 0, sz);
+	phy_error_log_request = data_out;
+	phy_error_log_request->smp_frame_type = 0x40;
+	phy_error_log_request->function = 0x11;
+	phy_error_log_request->request_length = 2;
+	phy_error_log_request->allocated_response_length = 0;
+	phy_error_log_request->phy_identifier = phy->number;
+
+	memset(&mpi_request, 0, request_sz);
+	memset(&mpi_reply, 0, reply_sz);
+	mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
+	mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH;
+	mpi_request.io_unit_port = (u8) mpi3mr_get_port_id_by_sas_phy(phy);
+	mpi_request.sas_address = cpu_to_le64(phy->identify.sas_address);
+
+	psge = &mpi_request.request_sge;
+	mpi3mr_add_sg_single(psge, sgl_flags, data_out_sz, data_out_dma);
+
+	psge = &mpi_request.response_sge;
+	mpi3mr_add_sg_single(psge, sgl_flags, data_in_sz, data_in_dma);
+
+	dprint_transport_info(mrioc,
+	    "sending phy error log SMP request to sas_address(0x%016llx), phy_id(%d)\n",
+	    (unsigned long long)phy->identify.sas_address, phy->number);
+
+	if (mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
+	    &mpi_reply, reply_sz, MPI3MR_INTADMCMD_TIMEOUT, &ioc_status))
+		goto out;
+
+	dprint_transport_info(mrioc,
+	    "phy error log SMP request completed with ioc_status(0x%04x)\n",
+	    ioc_status);
+
+	if (ioc_status == MPI3_IOCSTATUS_SUCCESS) {
+		dprint_transport_info(mrioc,
+		    "phy error log - reply data transfer size(%d)\n",
+		    le16_to_cpu(mpi_reply.response_data_length));
+
+		if (le16_to_cpu(mpi_reply.response_data_length) !=
+		    sizeof(struct phy_error_log_reply))
+			goto out;
+
+		dprint_transport_info(mrioc,
+		    "phy error log - function_result(%d)\n",
+		    phy_error_log_reply->function_result);
+
+		phy->invalid_dword_count =
+		    be32_to_cpu(phy_error_log_reply->invalid_dword);
+		phy->running_disparity_error_count =
+		    be32_to_cpu(phy_error_log_reply->running_disparity_error);
+		phy->loss_of_dword_sync_count =
+		    be32_to_cpu(phy_error_log_reply->loss_of_dword_sync);
+		phy->phy_reset_problem_count =
+		    be32_to_cpu(phy_error_log_reply->phy_reset_problem);
+		rc = 0;
+	}
+
+out:
+	if (data_out)
+		dma_free_coherent(&mrioc->pdev->dev, sz, data_out,
+		    data_out_dma);
+
+	return rc;
+}
+
+/**
+ * mpi3mr_transport_get_linkerrors - return phy error counters
+ * @phy: The SAS transport layer phy object
+ *
+ * This function retrieves the phy error log information of the
+ * HBA or expander for which the phy belongs to
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+static int mpi3mr_transport_get_linkerrors(struct sas_phy *phy)
+{
+	struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy);
+	struct mpi3_sas_phy_page1 phy_pg1;
+	int rc = 0;
+	u16 ioc_status;
+
+	rc = mpi3mr_parent_present(mrioc, phy);
+	if (rc)
+		return rc;
+
+	if (phy->identify.sas_address != mrioc->sas_hba.sas_address)
+		return mpi3mr_get_expander_phy_error_log(mrioc, phy);
+
+	memset(&phy_pg1, 0, sizeof(struct mpi3_sas_phy_page1));
+	/* get hba phy error logs */
+	if ((mpi3mr_cfg_get_sas_phy_pg1(mrioc, &ioc_status, &phy_pg1,
+	    sizeof(struct mpi3_sas_phy_page1),
+	    MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, phy->number))) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -ENXIO;
+	}
+
+	if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -ENXIO;
+	}
+	phy->invalid_dword_count = le32_to_cpu(phy_pg1.invalid_dword_count);
+	phy->running_disparity_error_count =
+		le32_to_cpu(phy_pg1.running_disparity_error_count);
+	phy->loss_of_dword_sync_count =
+		le32_to_cpu(phy_pg1.loss_dword_synch_count);
+	phy->phy_reset_problem_count =
+		le32_to_cpu(phy_pg1.phy_reset_problem_count);
+	return 0;
+}
+
+/**
+ * mpi3mr_transport_get_enclosure_identifier - Get Enclosure ID
+ * @rphy: The SAS transport layer remote phy object
+ * @identifier: Enclosure identifier to be returned
+ *
+ * Returns the enclosure id for the device pointed by the remote
+ * phy object.
+ *
+ * Return: 0 on success or -ENXIO
+ */
+static int
+mpi3mr_transport_get_enclosure_identifier(struct sas_rphy *rphy,
+	u64 *identifier)
+{
+	struct mpi3mr_ioc *mrioc = rphy_to_mrioc(rphy);
+	struct mpi3mr_tgt_dev *tgtdev = NULL;
+	unsigned long flags;
+	int rc;
+
+	spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
+	tgtdev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
+	    rphy->identify.sas_address, rphy);
+	if (tgtdev) {
+		*identifier =
+			tgtdev->enclosure_logical_id;
+		rc = 0;
+		mpi3mr_tgtdev_put(tgtdev);
+	} else {
+		*identifier = 0;
+		rc = -ENXIO;
+	}
+	spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
+
+	return rc;
+}
+
+/**
+ * mpi3mr_transport_get_bay_identifier - Get bay ID
+ * @rphy: The SAS transport layer remote phy object
+ *
+ * Returns the slot id for the device pointed by the remote phy
+ * object.
+ *
+ * Return: Valid slot ID on success or -ENXIO
+ */
+static int
+mpi3mr_transport_get_bay_identifier(struct sas_rphy *rphy)
+{
+	struct mpi3mr_ioc *mrioc = rphy_to_mrioc(rphy);
+	struct mpi3mr_tgt_dev *tgtdev = NULL;
+	unsigned long flags;
+	int rc;
+
+	spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
+	tgtdev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
+	    rphy->identify.sas_address, rphy);
+	if (tgtdev) {
+		rc = tgtdev->slot;
+		mpi3mr_tgtdev_put(tgtdev);
+	} else
+		rc = -ENXIO;
+	spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
+
+	return rc;
+}
+
+/* phy control request structure */
+struct phy_control_request {
+	u8 smp_frame_type; /* 0x40 */
+	u8 function; /* 0x91 */
+	u8 allocated_response_length;
+	u8 request_length; /* 0x09 */
+	u16 expander_change_count;
+	u8 reserved_1[3];
+	u8 phy_identifier;
+	u8 phy_operation;
+	u8 reserved_2[13];
+	u64 attached_device_name;
+	u8 programmed_min_physical_link_rate;
+	u8 programmed_max_physical_link_rate;
+	u8 reserved_3[6];
+};
+
+/* phy control reply structure */
+struct phy_control_reply {
+	u8 smp_frame_type; /* 0x41 */
+	u8 function; /* 0x11 */
+	u8 function_result;
+	u8 response_length;
+};
+
+#define SMP_PHY_CONTROL_LINK_RESET	(0x01)
+#define SMP_PHY_CONTROL_HARD_RESET	(0x02)
+#define SMP_PHY_CONTROL_DISABLE		(0x03)
+
+/**
+ * mpi3mr_expander_phy_control - expander phy control
+ * @mrioc: Adapter instance reference
+ * @phy: The SAS transport layer phy object
+ * @phy_operation: The phy operation to be executed
+ *
+ * Issues SMP passthru phy control request to execute a specific
+ * phy operation for a given expander device.
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+static int
+mpi3mr_expander_phy_control(struct mpi3mr_ioc *mrioc,
+	struct sas_phy *phy, u8 phy_operation)
+{
+	struct mpi3_smp_passthrough_request mpi_request;
+	struct mpi3_smp_passthrough_reply mpi_reply;
+	struct phy_control_request *phy_control_request;
+	struct phy_control_reply *phy_control_reply;
+	int rc;
+	void *psge;
+	void *data_out = NULL;
+	dma_addr_t data_out_dma;
+	dma_addr_t data_in_dma;
+	size_t data_in_sz;
+	size_t data_out_sz;
+	u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
+	u16 request_sz = sizeof(struct mpi3_smp_passthrough_request);
+	u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply);
+	u16 ioc_status;
+	u16 sz;
+
+	if (mrioc->reset_in_progress) {
+		ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
+		return -EFAULT;
+	}
+
+	data_out_sz = sizeof(struct phy_control_request);
+	data_in_sz = sizeof(struct phy_control_reply);
+	sz = data_out_sz + data_in_sz;
+	data_out = dma_alloc_coherent(&mrioc->pdev->dev, sz, &data_out_dma,
+	    GFP_KERNEL);
+	if (!data_out) {
+		rc = -ENOMEM;
+		goto out;
+	}
+
+	data_in_dma = data_out_dma + data_out_sz;
+	phy_control_reply = data_out + data_out_sz;
+
+	rc = -EINVAL;
+	memset(data_out, 0, sz);
+
+	phy_control_request = data_out;
+	phy_control_request->smp_frame_type = 0x40;
+	phy_control_request->function = 0x91;
+	phy_control_request->request_length = 9;
+	phy_control_request->allocated_response_length = 0;
+	phy_control_request->phy_identifier = phy->number;
+	phy_control_request->phy_operation = phy_operation;
+	phy_control_request->programmed_min_physical_link_rate =
+	    phy->minimum_linkrate << 4;
+	phy_control_request->programmed_max_physical_link_rate =
+	    phy->maximum_linkrate << 4;
+
+	memset(&mpi_request, 0, request_sz);
+	memset(&mpi_reply, 0, reply_sz);
+	mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
+	mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH;
+	mpi_request.io_unit_port = (u8) mpi3mr_get_port_id_by_sas_phy(phy);
+	mpi_request.sas_address = cpu_to_le64(phy->identify.sas_address);
+
+	psge = &mpi_request.request_sge;
+	mpi3mr_add_sg_single(psge, sgl_flags, data_out_sz, data_out_dma);
+
+	psge = &mpi_request.response_sge;
+	mpi3mr_add_sg_single(psge, sgl_flags, data_in_sz, data_in_dma);
+
+	dprint_transport_info(mrioc,
+	    "sending phy control SMP request to sas_address(0x%016llx), phy_id(%d) opcode(%d)\n",
+	    (unsigned long long)phy->identify.sas_address, phy->number,
+	    phy_operation);
+
+	if (mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
+	    &mpi_reply, reply_sz, MPI3MR_INTADMCMD_TIMEOUT, &ioc_status))
+		goto out;
+
+	dprint_transport_info(mrioc,
+	    "phy control SMP request completed with ioc_status(0x%04x)\n",
+	    ioc_status);
+
+	if (ioc_status == MPI3_IOCSTATUS_SUCCESS) {
+		dprint_transport_info(mrioc,
+		    "phy control - reply data transfer size(%d)\n",
+		    le16_to_cpu(mpi_reply.response_data_length));
+
+		if (le16_to_cpu(mpi_reply.response_data_length) !=
+		    sizeof(struct phy_control_reply))
+			goto out;
+		dprint_transport_info(mrioc,
+		    "phy control - function_result(%d)\n",
+		    phy_control_reply->function_result);
+		rc = 0;
+	}
+ out:
+	if (data_out)
+		dma_free_coherent(&mrioc->pdev->dev, sz, data_out,
+		    data_out_dma);
+
+	return rc;
+}
+
+/**
+ * mpi3mr_transport_phy_reset - Reset a given phy
+ * @phy: The SAS transport layer phy object
+ * @hard_reset: Flag to indicate the type of reset
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+static int
+mpi3mr_transport_phy_reset(struct sas_phy *phy, int hard_reset)
+{
+	struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy);
+	struct mpi3_iounit_control_request mpi_request;
+	struct mpi3_iounit_control_reply mpi_reply;
+	u16 request_sz = sizeof(struct mpi3_iounit_control_request);
+	u16 reply_sz = sizeof(struct mpi3_iounit_control_reply);
+	int rc = 0;
+	u16 ioc_status;
+
+	rc = mpi3mr_parent_present(mrioc, phy);
+	if (rc)
+		return rc;
+
+	/* handle expander phys */
+	if (phy->identify.sas_address != mrioc->sas_hba.sas_address)
+		return mpi3mr_expander_phy_control(mrioc, phy,
+		    (hard_reset == 1) ? SMP_PHY_CONTROL_HARD_RESET :
+		    SMP_PHY_CONTROL_LINK_RESET);
+
+	/* handle hba phys */
+	memset(&mpi_request, 0, request_sz);
+	mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
+	mpi_request.function = MPI3_FUNCTION_IO_UNIT_CONTROL;
+	mpi_request.operation = MPI3_CTRL_OP_SAS_PHY_CONTROL;
+	mpi_request.param8[MPI3_CTRL_OP_SAS_PHY_CONTROL_PARAM8_ACTION_INDEX] =
+		(hard_reset ? MPI3_CTRL_ACTION_HARD_RESET :
+		 MPI3_CTRL_ACTION_LINK_RESET);
+	mpi_request.param8[MPI3_CTRL_OP_SAS_PHY_CONTROL_PARAM8_PHY_INDEX] =
+		phy->number;
+
+	dprint_transport_info(mrioc,
+	    "sending phy reset request to sas_address(0x%016llx), phy_id(%d) hard_reset(%d)\n",
+	    (unsigned long long)phy->identify.sas_address, phy->number,
+	    hard_reset);
+
+	if (mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
+	    &mpi_reply, reply_sz, MPI3MR_INTADMCMD_TIMEOUT, &ioc_status)) {
+		rc = -EAGAIN;
+		goto out;
+	}
+
+	dprint_transport_info(mrioc,
+	    "phy reset request completed with ioc_status(0x%04x)\n",
+	    ioc_status);
+out:
+	return rc;
+}
+
+/**
+ * mpi3mr_transport_phy_enable - enable/disable phys
+ * @phy: The SAS transport layer phy object
+ * @enable: flag to enable/disable, enable phy when true
+ *
+ * This function enables/disables a given by executing required
+ * configuration page changes or expander phy control command
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+static int
+mpi3mr_transport_phy_enable(struct sas_phy *phy, int enable)
+{
+	struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy);
+	struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0 = NULL;
+	struct mpi3_sas_io_unit_page1 *sas_io_unit_pg1 = NULL;
+	u16 sz;
+	int rc = 0;
+	int i, discovery_active;
+
+	rc = mpi3mr_parent_present(mrioc, phy);
+	if (rc)
+		return rc;
+
+	/* handle expander phys */
+	if (phy->identify.sas_address != mrioc->sas_hba.sas_address)
+		return mpi3mr_expander_phy_control(mrioc, phy,
+		    (enable == 1) ? SMP_PHY_CONTROL_LINK_RESET :
+		    SMP_PHY_CONTROL_DISABLE);
+
+	/* handle hba phys */
+	sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) +
+		(mrioc->sas_hba.num_phys *
+		 sizeof(struct mpi3_sas_io_unit0_phy_data));
+	sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL);
+	if (!sas_io_unit_pg0) {
+		rc = -ENOMEM;
+		goto out;
+	}
+	if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		rc = -ENXIO;
+		goto out;
+	}
+
+	/* unable to enable/disable phys when discovery is active */
+	for (i = 0, discovery_active = 0; i < mrioc->sas_hba.num_phys ; i++) {
+		if (sas_io_unit_pg0->phy_data[i].port_flags &
+		    MPI3_SASIOUNIT0_PORTFLAGS_DISC_IN_PROGRESS) {
+			ioc_err(mrioc,
+			    "discovery is active on port = %d, phy = %d\n"
+			    "\tunable to enable/disable phys, try again later!\n",
+			    sas_io_unit_pg0->phy_data[i].io_unit_port, i);
+			discovery_active = 1;
+		}
+	}
+
+	if (discovery_active) {
+		rc = -EAGAIN;
+		goto out;
+	}
+
+	if ((sas_io_unit_pg0->phy_data[phy->number].phy_flags &
+	     (MPI3_SASIOUNIT0_PHYFLAGS_HOST_PHY |
+	      MPI3_SASIOUNIT0_PHYFLAGS_VIRTUAL_PHY))) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		rc = -ENXIO;
+		goto out;
+	}
+
+	/* read sas_iounit page 1 */
+	sz = offsetof(struct mpi3_sas_io_unit_page1, phy_data) +
+		(mrioc->sas_hba.num_phys *
+		 sizeof(struct mpi3_sas_io_unit1_phy_data));
+	sas_io_unit_pg1 = kzalloc(sz, GFP_KERNEL);
+	if (!sas_io_unit_pg1) {
+		rc = -ENOMEM;
+		goto out;
+	}
+
+	if (mpi3mr_cfg_get_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, sz)) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		rc = -ENXIO;
+		goto out;
+	}
+
+	if (enable)
+		sas_io_unit_pg1->phy_data[phy->number].phy_flags
+		    &= ~MPI3_SASIOUNIT1_PHYFLAGS_PHY_DISABLE;
+	else
+		sas_io_unit_pg1->phy_data[phy->number].phy_flags
+		    |= MPI3_SASIOUNIT1_PHYFLAGS_PHY_DISABLE;
+
+	mpi3mr_cfg_set_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, sz);
+
+	/* link reset */
+	if (enable)
+		mpi3mr_transport_phy_reset(phy, 0);
+
+ out:
+	kfree(sas_io_unit_pg1);
+	kfree(sas_io_unit_pg0);
+	return rc;
+}
+
+/**
+ * mpi3mr_transport_phy_speed - set phy min/max speed
+ * @phy: The SAS transport later phy object
+ * @rates: Rates defined as in sas_phy_linkrates
+ *
+ * This function sets the link rates given in the rates
+ * argument to the given phy by executing required configuration
+ * page changes or expander phy control command
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+static int
+mpi3mr_transport_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates)
+{
+	struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy);
+	struct mpi3_sas_io_unit_page1 *sas_io_unit_pg1 = NULL;
+	struct mpi3_sas_phy_page0 phy_pg0;
+	u16 sz, ioc_status;
+	int rc = 0;
+
+	rc = mpi3mr_parent_present(mrioc, phy);
+	if (rc)
+		return rc;
+
+	if (!rates->minimum_linkrate)
+		rates->minimum_linkrate = phy->minimum_linkrate;
+	else if (rates->minimum_linkrate < phy->minimum_linkrate_hw)
+		rates->minimum_linkrate = phy->minimum_linkrate_hw;
+
+	if (!rates->maximum_linkrate)
+		rates->maximum_linkrate = phy->maximum_linkrate;
+	else if (rates->maximum_linkrate > phy->maximum_linkrate_hw)
+		rates->maximum_linkrate = phy->maximum_linkrate_hw;
+
+	/* handle expander phys */
+	if (phy->identify.sas_address != mrioc->sas_hba.sas_address) {
+		phy->minimum_linkrate = rates->minimum_linkrate;
+		phy->maximum_linkrate = rates->maximum_linkrate;
+		return mpi3mr_expander_phy_control(mrioc, phy,
+		    SMP_PHY_CONTROL_LINK_RESET);
+	}
+
+	/* handle hba phys */
+	sz = offsetof(struct mpi3_sas_io_unit_page1, phy_data) +
+		(mrioc->sas_hba.num_phys *
+		 sizeof(struct mpi3_sas_io_unit1_phy_data));
+	sas_io_unit_pg1 = kzalloc(sz, GFP_KERNEL);
+	if (!sas_io_unit_pg1) {
+		rc = -ENOMEM;
+		goto out;
+	}
+
+	if (mpi3mr_cfg_get_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, sz)) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		rc = -ENXIO;
+		goto out;
+	}
+
+	sas_io_unit_pg1->phy_data[phy->number].max_min_link_rate =
+		(rates->minimum_linkrate + (rates->maximum_linkrate << 4));
+
+	if (mpi3mr_cfg_set_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, sz)) {
+		ioc_err(mrioc, "failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		rc = -ENXIO;
+		goto out;
+	}
+
+	/* link reset */
+	mpi3mr_transport_phy_reset(phy, 0);
+
+	/* read phy page 0, then update the rates in the sas transport phy */
+	if (!mpi3mr_cfg_get_sas_phy_pg0(mrioc, &ioc_status, &phy_pg0,
+	    sizeof(struct mpi3_sas_phy_page0),
+	    MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, phy->number) &&
+	    (ioc_status == MPI3_IOCSTATUS_SUCCESS)) {
+		phy->minimum_linkrate = mpi3mr_convert_phy_link_rate(
+		    phy_pg0.programmed_link_rate &
+		    MPI3_SAS_PRATE_MIN_RATE_MASK);
+		phy->maximum_linkrate = mpi3mr_convert_phy_link_rate(
+		    phy_pg0.programmed_link_rate >> 4);
+		phy->negotiated_linkrate =
+			mpi3mr_convert_phy_link_rate(
+			    (phy_pg0.negotiated_link_rate &
+			    MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK)
+			    >> MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT);
+	}
+
+out:
+	kfree(sas_io_unit_pg1);
+	return rc;
+}
+
+/**
+ * mpi3mr_map_smp_buffer - map BSG dma buffer
+ * @dev: Generic device reference
+ * @buf: BSG buffer pointer
+ * @dma_addr: Physical address holder
+ * @dma_len: Mapped DMA buffer length.
+ * @p: Virtual address holder
+ *
+ * This function maps the DMAable buffer
+ *
+ * Return: 0 on success, non-zero on failure
+ */
+static int
+mpi3mr_map_smp_buffer(struct device *dev, struct bsg_buffer *buf,
+		dma_addr_t *dma_addr, size_t *dma_len, void **p)
+{
+	/* Check if the request is split across multiple segments */
+	if (buf->sg_cnt > 1) {
+		*p = dma_alloc_coherent(dev, buf->payload_len, dma_addr,
+				GFP_KERNEL);
+		if (!*p)
+			return -ENOMEM;
+		*dma_len = buf->payload_len;
+	} else {
+		if (!dma_map_sg(dev, buf->sg_list, 1, DMA_BIDIRECTIONAL))
+			return -ENOMEM;
+		*dma_addr = sg_dma_address(buf->sg_list);
+		*dma_len = sg_dma_len(buf->sg_list);
+		*p = NULL;
+	}
+
+	return 0;
+}
+
+/**
+ * mpi3mr_unmap_smp_buffer - unmap BSG dma buffer
+ * @dev: Generic device reference
+ * @buf: BSG buffer pointer
+ * @dma_addr: Physical address to be unmapped
+ * @p: Virtual address
+ *
+ * This function unmaps the DMAable buffer
+ */
+static void
+mpi3mr_unmap_smp_buffer(struct device *dev, struct bsg_buffer *buf,
+		dma_addr_t dma_addr, void *p)
+{
+	if (p)
+		dma_free_coherent(dev, buf->payload_len, p, dma_addr);
+	else
+		dma_unmap_sg(dev, buf->sg_list, 1, DMA_BIDIRECTIONAL);
+}
+
+/**
+ * mpi3mr_transport_smp_handler - handler for smp passthru
+ * @job: BSG job reference
+ * @shost: SCSI host object reference
+ * @rphy: SAS transport rphy object pointing the expander
+ *
+ * This is used primarily by smp utils for sending the SMP
+ * commands to the expanders attached to the controller
+ */
+static void
+mpi3mr_transport_smp_handler(struct bsg_job *job, struct Scsi_Host *shost,
+	struct sas_rphy *rphy)
+{
+	struct mpi3mr_ioc *mrioc = shost_priv(shost);
+	struct mpi3_smp_passthrough_request mpi_request;
+	struct mpi3_smp_passthrough_reply mpi_reply;
+	int rc;
+	void *psge;
+	dma_addr_t dma_addr_in;
+	dma_addr_t dma_addr_out;
+	void *addr_in = NULL;
+	void *addr_out = NULL;
+	size_t dma_len_in;
+	size_t dma_len_out;
+	unsigned int reslen = 0;
+	u16 request_sz = sizeof(struct mpi3_smp_passthrough_request);
+	u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply);
+	u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
+	u16 ioc_status;
+
+	if (mrioc->reset_in_progress) {
+		ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
+		rc = -EFAULT;
+		goto out;
+	}
+
+	rc = mpi3mr_map_smp_buffer(&mrioc->pdev->dev, &job->request_payload,
+	    &dma_addr_out, &dma_len_out, &addr_out);
+	if (rc)
+		goto out;
+
+	if (addr_out)
+		sg_copy_to_buffer(job->request_payload.sg_list,
+		    job->request_payload.sg_cnt, addr_out,
+		    job->request_payload.payload_len);
+
+	rc = mpi3mr_map_smp_buffer(&mrioc->pdev->dev, &job->reply_payload,
+			&dma_addr_in, &dma_len_in, &addr_in);
+	if (rc)
+		goto unmap_out;
+
+	memset(&mpi_request, 0, request_sz);
+	memset(&mpi_reply, 0, reply_sz);
+	mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
+	mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH;
+	mpi_request.io_unit_port = (u8) mpi3mr_get_port_id_by_rphy(mrioc, rphy);
+	mpi_request.sas_address = ((rphy) ?
+	    cpu_to_le64(rphy->identify.sas_address) :
+	    cpu_to_le64(mrioc->sas_hba.sas_address));
+	psge = &mpi_request.request_sge;
+	mpi3mr_add_sg_single(psge, sgl_flags, dma_len_out - 4, dma_addr_out);
+
+	psge = &mpi_request.response_sge;
+	mpi3mr_add_sg_single(psge, sgl_flags, dma_len_in - 4, dma_addr_in);
+
+	dprint_transport_info(mrioc, "sending SMP request\n");
+
+	rc = mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
+				       &mpi_reply, reply_sz,
+				       MPI3MR_INTADMCMD_TIMEOUT, &ioc_status);
+	if (rc)
+		goto unmap_in;
+
+	dprint_transport_info(mrioc,
+	    "SMP request completed with ioc_status(0x%04x)\n", ioc_status);
+
+	dprint_transport_info(mrioc,
+		    "SMP request - reply data transfer size(%d)\n",
+		    le16_to_cpu(mpi_reply.response_data_length));
+
+	memcpy(job->reply, &mpi_reply, reply_sz);
+	job->reply_len = reply_sz;
+	reslen = le16_to_cpu(mpi_reply.response_data_length);
+
+	if (addr_in)
+		sg_copy_from_buffer(job->reply_payload.sg_list,
+				job->reply_payload.sg_cnt, addr_in,
+				job->reply_payload.payload_len);
+
+	rc = 0;
+unmap_in:
+	mpi3mr_unmap_smp_buffer(&mrioc->pdev->dev, &job->reply_payload,
+			dma_addr_in, addr_in);
+unmap_out:
+	mpi3mr_unmap_smp_buffer(&mrioc->pdev->dev, &job->request_payload,
+			dma_addr_out, addr_out);
+out:
+	bsg_job_done(job, rc, reslen);
+}
+
+struct sas_function_template mpi3mr_transport_functions = {
+	.get_linkerrors		= mpi3mr_transport_get_linkerrors,
+	.get_enclosure_identifier = mpi3mr_transport_get_enclosure_identifier,
+	.get_bay_identifier	= mpi3mr_transport_get_bay_identifier,
+	.phy_reset		= mpi3mr_transport_phy_reset,
+	.phy_enable		= mpi3mr_transport_phy_enable,
+	.set_phy_speed		= mpi3mr_transport_phy_speed,
+	.smp_handler		= mpi3mr_transport_smp_handler,
+};
+
+struct scsi_transport_template *mpi3mr_transport_template;
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h b/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h
index d00431f553e1..4d0be5ab98c1 100644
--- a/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h
@@ -534,6 +534,7 @@ typedef struct _MPI2_CONFIG_REPLY {
 ****************************************************************************/
 
 #define MPI2_MFGPAGE_VENDORID_LSI                   (0x1000)
+#define MPI2_MFGPAGE_VENDORID_ATTO                  (0x117C)
 
 /*MPI v2.0 SAS products */
 #define MPI2_MFGPAGE_DEVID_SAS2004                  (0x0070)
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index 331e896d8225..8b22df8c1792 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -2990,19 +2990,26 @@ static int
 _base_config_dma_addressing(struct MPT3SAS_ADAPTER *ioc, struct pci_dev *pdev)
 {
 	struct sysinfo s;
+	u64 coherent_dma_mask, dma_mask;
 
-	if (ioc->is_mcpu_endpoint ||
-	    sizeof(dma_addr_t) == 4 || ioc->use_32bit_dma ||
-	    dma_get_required_mask(&pdev->dev) <= DMA_BIT_MASK(32))
+	if (ioc->is_mcpu_endpoint || sizeof(dma_addr_t) == 4 ||
+	    dma_get_required_mask(&pdev->dev) <= 32) {
 		ioc->dma_mask = 32;
+		coherent_dma_mask = dma_mask = DMA_BIT_MASK(32);
 	/* Set 63 bit DMA mask for all SAS3 and SAS35 controllers */
-	else if (ioc->hba_mpi_version_belonged > MPI2_VERSION)
+	} else if (ioc->hba_mpi_version_belonged > MPI2_VERSION) {
 		ioc->dma_mask = 63;
-	else
+		coherent_dma_mask = dma_mask = DMA_BIT_MASK(63);
+	} else {
 		ioc->dma_mask = 64;
+		coherent_dma_mask = dma_mask = DMA_BIT_MASK(64);
+	}
 
-	if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(ioc->dma_mask)) ||
-	    dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(ioc->dma_mask)))
+	if (ioc->use_32bit_dma)
+		coherent_dma_mask = DMA_BIT_MASK(32);
+
+	if (dma_set_mask(&pdev->dev, dma_mask) ||
+	    dma_set_coherent_mask(&pdev->dev, coherent_dma_mask))
 		return -ENODEV;
 
 	if (ioc->dma_mask > 32) {
@@ -4313,7 +4320,7 @@ _base_put_smid_scsi_io_atomic(struct MPT3SAS_ADAPTER *ioc, u16 smid,
 	descriptor.MSIxIndex = _base_set_and_get_msix_index(ioc, smid);
 	descriptor.SMID = cpu_to_le16(smid);
 
-	writel(*request, &ioc->chip->AtomicRequestDescriptorPost);
+	writel(cpu_to_le32(*request), &ioc->chip->AtomicRequestDescriptorPost);
 }
 
 /**
@@ -4335,7 +4342,7 @@ _base_put_smid_fast_path_atomic(struct MPT3SAS_ADAPTER *ioc, u16 smid,
 	descriptor.MSIxIndex = _base_set_and_get_msix_index(ioc, smid);
 	descriptor.SMID = cpu_to_le16(smid);
 
-	writel(*request, &ioc->chip->AtomicRequestDescriptorPost);
+	writel(cpu_to_le32(*request), &ioc->chip->AtomicRequestDescriptorPost);
 }
 
 /**
@@ -4358,7 +4365,7 @@ _base_put_smid_hi_priority_atomic(struct MPT3SAS_ADAPTER *ioc, u16 smid,
 	descriptor.MSIxIndex = msix_task;
 	descriptor.SMID = cpu_to_le16(smid);
 
-	writel(*request, &ioc->chip->AtomicRequestDescriptorPost);
+	writel(cpu_to_le32(*request), &ioc->chip->AtomicRequestDescriptorPost);
 }
 
 /**
@@ -4379,7 +4386,7 @@ _base_put_smid_default_atomic(struct MPT3SAS_ADAPTER *ioc, u16 smid)
 	descriptor.MSIxIndex = _base_set_and_get_msix_index(ioc, smid);
 	descriptor.SMID = cpu_to_le16(smid);
 
-	writel(*request, &ioc->chip->AtomicRequestDescriptorPost);
+	writel(cpu_to_le32(*request), &ioc->chip->AtomicRequestDescriptorPost);
 }
 
 /**
@@ -5425,6 +5432,151 @@ out:
 }
 
 /**
+ * mpt3sas_atto_validate_nvram - validate the ATTO nvram read from mfg pg1
+ *
+ * @ioc : per adapter object
+ * @n   : ptr to the ATTO nvram structure
+ * Return: 0 for success, non-zero for failure.
+ */
+static int
+mpt3sas_atto_validate_nvram(struct MPT3SAS_ADAPTER *ioc,
+			    struct ATTO_SAS_NVRAM *n)
+{
+	int r = -EINVAL;
+	union ATTO_SAS_ADDRESS *s1;
+	u32 len;
+	u8 *pb;
+	u8 ckSum;
+
+	/* validate nvram checksum */
+	pb = (u8 *) n;
+	ckSum = ATTO_SASNVR_CKSUM_SEED;
+	len = sizeof(struct ATTO_SAS_NVRAM);
+
+	while (len--)
+		ckSum = ckSum + pb[len];
+
+	if (ckSum) {
+		ioc_err(ioc, "Invalid ATTO NVRAM checksum\n");
+		return r;
+	}
+
+	s1 = (union ATTO_SAS_ADDRESS *) n->SasAddr;
+
+	if (n->Signature[0] != 'E'
+	|| n->Signature[1] != 'S'
+	|| n->Signature[2] != 'A'
+	|| n->Signature[3] != 'S')
+		ioc_err(ioc, "Invalid ATTO NVRAM signature\n");
+	else if (n->Version > ATTO_SASNVR_VERSION)
+		ioc_info(ioc, "Invalid ATTO NVRAM version");
+	else if ((n->SasAddr[7] & (ATTO_SAS_ADDR_ALIGN - 1))
+			|| s1->b[0] != 0x50
+			|| s1->b[1] != 0x01
+			|| s1->b[2] != 0x08
+			|| (s1->b[3] & 0xF0) != 0x60
+			|| ((s1->b[3] & 0x0F) | le32_to_cpu(s1->d[1])) == 0) {
+		ioc_err(ioc, "Invalid ATTO SAS address\n");
+	} else
+		r = 0;
+	return r;
+}
+
+/**
+ * mpt3sas_atto_get_sas_addr - get the ATTO SAS address from mfg page 1
+ *
+ * @ioc : per adapter object
+ * @*sas_addr : return sas address
+ * Return: 0 for success, non-zero for failure.
+ */
+static int
+mpt3sas_atto_get_sas_addr(struct MPT3SAS_ADAPTER *ioc, union ATTO_SAS_ADDRESS *sas_addr)
+{
+	Mpi2ManufacturingPage1_t mfg_pg1;
+	Mpi2ConfigReply_t mpi_reply;
+	struct ATTO_SAS_NVRAM *nvram;
+	int r;
+	__be64 addr;
+
+	r = mpt3sas_config_get_manufacturing_pg1(ioc, &mpi_reply, &mfg_pg1);
+	if (r) {
+		ioc_err(ioc, "Failed to read manufacturing page 1\n");
+		return r;
+	}
+
+	/* validate nvram */
+	nvram = (struct ATTO_SAS_NVRAM *) mfg_pg1.VPD;
+	r = mpt3sas_atto_validate_nvram(ioc, nvram);
+	if (r)
+		return r;
+
+	addr = *((__be64 *) nvram->SasAddr);
+	sas_addr->q = cpu_to_le64(be64_to_cpu(addr));
+	return r;
+}
+
+/**
+ * mpt3sas_atto_init - perform initializaion for ATTO branded
+ *					adapter.
+ * @ioc : per adapter object
+ *5
+ * Return: 0 for success, non-zero for failure.
+ */
+static int
+mpt3sas_atto_init(struct MPT3SAS_ADAPTER *ioc)
+{
+	int sz = 0;
+	Mpi2BiosPage4_t *bios_pg4 = NULL;
+	Mpi2ConfigReply_t mpi_reply;
+	int r;
+	int ix;
+	union ATTO_SAS_ADDRESS sas_addr;
+	union ATTO_SAS_ADDRESS temp;
+	union ATTO_SAS_ADDRESS bias;
+
+	r = mpt3sas_atto_get_sas_addr(ioc, &sas_addr);
+	if (r)
+		return r;
+
+	/* get header first to get size */
+	r = mpt3sas_config_get_bios_pg4(ioc, &mpi_reply, NULL, 0);
+	if (r) {
+		ioc_err(ioc, "Failed to read ATTO bios page 4 header.\n");
+		return r;
+	}
+
+	sz = mpi_reply.Header.PageLength * sizeof(u32);
+	bios_pg4 = kzalloc(sz, GFP_KERNEL);
+	if (!bios_pg4) {
+		ioc_err(ioc, "Failed to allocate memory for ATTO bios page.\n");
+		return -ENOMEM;
+	}
+
+	/* read bios page 4 */
+	r = mpt3sas_config_get_bios_pg4(ioc, &mpi_reply, bios_pg4, sz);
+	if (r) {
+		ioc_err(ioc, "Failed to read ATTO bios page 4\n");
+		goto out;
+	}
+
+	/* Update bios page 4 with the ATTO WWID */
+	bias.q = sas_addr.q;
+	bias.b[7] += ATTO_SAS_ADDR_DEVNAME_BIAS;
+
+	for (ix = 0; ix < bios_pg4->NumPhys; ix++) {
+		temp.q = sas_addr.q;
+		temp.b[7] += ix;
+		bios_pg4->Phy[ix].ReassignmentWWID = temp.q;
+		bios_pg4->Phy[ix].ReassignmentDeviceName = bias.q;
+	}
+	r = mpt3sas_config_set_bios_pg4(ioc, &mpi_reply, bios_pg4, sz);
+
+out:
+	kfree(bios_pg4);
+	return r;
+}
+
+/**
  * _base_static_config_pages - static start of day config pages
  * @ioc: per adapter object
  */
@@ -5447,6 +5599,13 @@ _base_static_config_pages(struct MPT3SAS_ADAPTER *ioc)
 		if (rc)
 			return rc;
 	}
+
+	if (ioc->pdev->vendor == MPI2_MFGPAGE_VENDORID_ATTO) {
+		rc = mpt3sas_atto_init(ioc);
+		if (rc)
+			return rc;
+	}
+
 	/*
 	 * Ensure correct T10 PI operation if vendor left EEDPTagMode
 	 * flag unset in NVDATA.
@@ -5496,12 +5655,21 @@ _base_static_config_pages(struct MPT3SAS_ADAPTER *ioc)
 	rc = _base_assign_fw_reported_qd(ioc);
 	if (rc)
 		return rc;
-	rc = mpt3sas_config_get_bios_pg2(ioc, &mpi_reply, &ioc->bios_pg2);
-	if (rc)
-		return rc;
-	rc = mpt3sas_config_get_bios_pg3(ioc, &mpi_reply, &ioc->bios_pg3);
-	if (rc)
-		return rc;
+
+	/*
+	 * ATTO doesn't use bios page 2 and 3 for bios settings.
+	 */
+	if (ioc->pdev->vendor ==  MPI2_MFGPAGE_VENDORID_ATTO)
+		ioc->bios_pg3.BiosVersion = 0;
+	else {
+		rc = mpt3sas_config_get_bios_pg2(ioc, &mpi_reply, &ioc->bios_pg2);
+		if (rc)
+			return rc;
+		rc = mpt3sas_config_get_bios_pg3(ioc, &mpi_reply, &ioc->bios_pg3);
+		if (rc)
+			return rc;
+	}
+
 	rc = mpt3sas_config_get_ioc_pg8(ioc, &mpi_reply, &ioc->ioc_pg8);
 	if (rc)
 		return rc;
@@ -6895,7 +7063,7 @@ _base_handshake_req_reply_wait(struct MPT3SAS_ADAPTER *ioc, int request_bytes,
 
 	/* send message 32-bits at a time */
 	for (i = 0, failed = 0; i < request_bytes/4 && !failed; i++) {
-		writel(request[i], &ioc->chip->Doorbell);
+		writel(cpu_to_le32(request[i]), &ioc->chip->Doorbell);
 		if ((_base_wait_for_doorbell_ack(ioc, 5)))
 			failed = 1;
 	}
@@ -6914,16 +7082,16 @@ _base_handshake_req_reply_wait(struct MPT3SAS_ADAPTER *ioc, int request_bytes,
 	}
 
 	/* read the first two 16-bits, it gives the total length of the reply */
-	reply[0] = ioc->base_readl(&ioc->chip->Doorbell)
-		& MPI2_DOORBELL_DATA_MASK;
+	reply[0] = le16_to_cpu(ioc->base_readl(&ioc->chip->Doorbell)
+	    & MPI2_DOORBELL_DATA_MASK);
 	writel(0, &ioc->chip->HostInterruptStatus);
 	if ((_base_wait_for_doorbell_int(ioc, 5))) {
 		ioc_err(ioc, "doorbell handshake int failed (line=%d)\n",
 			__LINE__);
 		return -EFAULT;
 	}
-	reply[1] = ioc->base_readl(&ioc->chip->Doorbell)
-		& MPI2_DOORBELL_DATA_MASK;
+	reply[1] = le16_to_cpu(ioc->base_readl(&ioc->chip->Doorbell)
+	    & MPI2_DOORBELL_DATA_MASK);
 	writel(0, &ioc->chip->HostInterruptStatus);
 
 	for (i = 2; i < default_reply->MsgLength * 2; i++)  {
@@ -6935,8 +7103,9 @@ _base_handshake_req_reply_wait(struct MPT3SAS_ADAPTER *ioc, int request_bytes,
 		if (i >=  reply_bytes/2) /* overflow case */
 			ioc->base_readl(&ioc->chip->Doorbell);
 		else
-			reply[i] = ioc->base_readl(&ioc->chip->Doorbell)
-				& MPI2_DOORBELL_DATA_MASK;
+			reply[i] = le16_to_cpu(
+			    ioc->base_readl(&ioc->chip->Doorbell)
+			    & MPI2_DOORBELL_DATA_MASK);
 		writel(0, &ioc->chip->HostInterruptStatus);
 	}
 
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h
index e584cf0ffc23..05364aa15ecd 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.h
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.h
@@ -77,8 +77,8 @@
 #define MPT3SAS_DRIVER_NAME		"mpt3sas"
 #define MPT3SAS_AUTHOR "Avago Technologies <MPT-FusionLinux.pdl@avagotech.com>"
 #define MPT3SAS_DESCRIPTION	"LSI MPT Fusion SAS 3.0 Device Driver"
-#define MPT3SAS_DRIVER_VERSION		"42.100.00.00"
-#define MPT3SAS_MAJOR_VERSION		42
+#define MPT3SAS_DRIVER_VERSION		"43.100.00.00"
+#define MPT3SAS_MAJOR_VERSION		43
 #define MPT3SAS_MINOR_VERSION		100
 #define MPT3SAS_BUILD_VERSION		0
 #define MPT3SAS_RELEASE_VERSION	00
@@ -1652,6 +1652,32 @@ struct mpt3sas_debugfs_buffer {
 typedef u8 (*MPT_CALLBACK)(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
 	u32 reply);
 
+/*
+ * struct ATTO_SAS_NVRAM - ATTO NVRAM settings stored
+ *				in Manufacturing page 1 used to get
+ *				ATTO SasAddr.
+ */
+struct ATTO_SAS_NVRAM {
+	u8		Signature[4];
+	u8		Version;
+#define ATTO_SASNVR_VERSION		0
+
+	u8		Checksum;
+#define ATTO_SASNVR_CKSUM_SEED	0x5A
+	u8		Pad[10];
+	u8		SasAddr[8];
+#define ATTO_SAS_ADDR_ALIGN		64
+	u8		Reserved[232];
+};
+
+#define ATTO_SAS_ADDR_DEVNAME_BIAS		63
+
+union ATTO_SAS_ADDRESS {
+	U8		b[8];
+	U16		w[4];
+	U32		d[2];
+	U64		q;
+};
 
 /* base shared API */
 extern struct list_head mpt3sas_ioc_list;
@@ -1828,6 +1854,9 @@ int mpt3sas_config_get_number_hba_phys(struct MPT3SAS_ADAPTER *ioc,
 	u8 *num_phys);
 int mpt3sas_config_get_manufacturing_pg0(struct MPT3SAS_ADAPTER *ioc,
 	Mpi2ConfigReply_t *mpi_reply, Mpi2ManufacturingPage0_t *config_page);
+int mpt3sas_config_get_manufacturing_pg1(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2ManufacturingPage1_t *config_page);
+
 int mpt3sas_config_get_manufacturing_pg7(struct MPT3SAS_ADAPTER *ioc,
 	Mpi2ConfigReply_t *mpi_reply, Mpi2ManufacturingPage7_t *config_page,
 	u16 sz);
@@ -1846,6 +1875,12 @@ int mpt3sas_config_get_bios_pg2(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 	*mpi_reply, Mpi2BiosPage2_t *config_page);
 int mpt3sas_config_get_bios_pg3(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 	*mpi_reply, Mpi2BiosPage3_t *config_page);
+int mpt3sas_config_set_bios_pg4(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2BiosPage4_t *config_page,
+	int sz_config_page);
+int mpt3sas_config_get_bios_pg4(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2BiosPage4_t *config_page,
+	int sz_config_page);
 int mpt3sas_config_get_iounit_pg0(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 	*mpi_reply, Mpi2IOUnitPage0_t *config_page);
 int mpt3sas_config_get_sas_device_pg0(struct MPT3SAS_ADAPTER *ioc,
diff --git a/drivers/scsi/mpt3sas/mpt3sas_config.c b/drivers/scsi/mpt3sas/mpt3sas_config.c
index a8dd14c91efd..d114ef381c44 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_config.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_config.c
@@ -541,6 +541,42 @@ mpt3sas_config_get_manufacturing_pg0(struct MPT3SAS_ADAPTER *ioc,
 }
 
 /**
+ * mpt3sas_config_get_manufacturing_pg1 - obtain manufacturing page 1
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * Context: sleep.
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_manufacturing_pg1(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2ManufacturingPage1_t *config_page)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_MANUFACTURING;
+	mpi_request.Header.PageNumber = 1;
+	mpi_request.Header.PageVersion = MPI2_MANUFACTURING1_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+		MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+		MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+		sizeof(*config_page));
+ out:
+	return r;
+}
+
+/**
  * mpt3sas_config_get_manufacturing_pg7 - obtain manufacturing page 7
  * @ioc: per adapter object
  * @mpi_reply: reply mf payload returned from firmware
@@ -757,11 +793,99 @@ mpt3sas_config_get_bios_pg3(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 	r = _config_request(ioc, &mpi_request, mpi_reply,
 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
 	    sizeof(*config_page));
+
  out:
 	return r;
 }
 
 /**
+ * mpt3sas_config_set_bios_pg4 - write out bios page 4
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * @sz_config_pg: sizeof the config page
+ * Context: sleep.
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_set_bios_pg4(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2BiosPage4_t *config_page,
+	int sz_config_pg)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_BIOS;
+	mpi_request.Header.PageNumber = 4;
+	mpi_request.Header.PageVersion = MPI2_BIOSPAGE4_PAGEVERSION;
+
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+		MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_WRITE_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+		MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+		sz_config_pg);
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_bios_pg4 - read bios page 4
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * @sz_config_pg: sizeof the config page
+ * Context: sleep.
+ *
+ * Return: 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_bios_pg4(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2BiosPage4_t *config_page,
+	int sz_config_pg)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_BIOS;
+	mpi_request.Header.PageNumber = 4;
+	mpi_request.Header.PageVersion =  MPI2_BIOSPAGE4_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+		MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	/*
+	 * The sizeof the page is variable. Allow for just the
+	 * size to be returned
+	 */
+	if (config_page && sz_config_pg) {
+		mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+
+		r = _config_request(ioc, &mpi_request, mpi_reply,
+			MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+			sz_config_pg);
+	}
+
+out:
+	return r;
+}
+
+/**
  * mpt3sas_config_get_iounit_pg0 - obtain iounit page 0
  * @ioc: per adapter object
  * @mpi_reply: reply mf payload returned from firmware
diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.c b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
index 84c87c2c3e7e..0d8b1e942ded 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_ctl.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
@@ -948,6 +948,14 @@ _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
 		break;
 	}
 	case MPI2_FUNCTION_FW_DOWNLOAD:
+	{
+		if (ioc->pdev->vendor == MPI2_MFGPAGE_VENDORID_ATTO) {
+			ioc_info(ioc, "Firmware download not supported for ATTO HBA.\n");
+			ret = -EPERM;
+			break;
+		}
+		fallthrough;
+	}
 	case MPI2_FUNCTION_FW_UPLOAD:
 	{
 		ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
@@ -1686,6 +1694,7 @@ _ctl_diag_register_2(struct MPT3SAS_ADAPTER *ioc,
 	ioc->ctl_cmds.status = MPT3_CMD_PENDING;
 	memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
 	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	memset(mpi_request, 0, ioc->request_sz);
 	ioc->ctl_cmds.smid = smid;
 
 	request_data = ioc->diag_buffer[buffer_type];
@@ -1787,6 +1796,7 @@ _ctl_diag_register_2(struct MPT3SAS_ADAPTER *ioc,
 	if (rc && request_data) {
 		dma_free_coherent(&ioc->pdev->dev, request_data_sz,
 		    request_data, request_data_dma);
+		ioc->diag_buffer[buffer_type] = NULL;
 		ioc->diag_buffer_status[buffer_type] &=
 		    ~MPT3_DIAG_BUFFER_IS_DRIVER_ALLOCATED;
 	}
@@ -2163,6 +2173,7 @@ mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type,
 	ioc->ctl_cmds.status = MPT3_CMD_PENDING;
 	memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
 	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	memset(mpi_request, 0, ioc->request_sz);
 	ioc->ctl_cmds.smid = smid;
 
 	mpi_request->Function = MPI2_FUNCTION_DIAG_RELEASE;
@@ -2417,6 +2428,7 @@ _ctl_diag_read_buffer(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
 	ioc->ctl_cmds.status = MPT3_CMD_PENDING;
 	memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
 	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	memset(mpi_request, 0, ioc->request_sz);
 	ioc->ctl_cmds.smid = smid;
 
 	mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index 791a406b4f8e..8e24ebcebfe5 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -5156,6 +5156,19 @@ scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
 
 	/* invalid device handle */
 	handle = sas_target_priv_data->handle;
+
+	/*
+	 * Avoid error handling escallation when device is disconnected
+	 */
+	if (handle == MPT3SAS_INVALID_DEVICE_HANDLE || sas_device_priv_data->block) {
+		if (scmd->device->host->shost_state == SHOST_RECOVERY &&
+		    scmd->cmnd[0] == TEST_UNIT_READY) {
+			scsi_build_sense(scmd, 0, UNIT_ATTENTION, 0x29, 0x07);
+			scsi_done(scmd);
+			return 0;
+		}
+	}
+
 	if (handle == MPT3SAS_INVALID_DEVICE_HANDLE) {
 		scmd->result = DID_NO_CONNECT << 16;
 		scsi_done(scmd);
@@ -11974,7 +11987,7 @@ static struct scsi_host_template mpt3sas_driver_template = {
 	.sg_tablesize			= MPT3SAS_SG_DEPTH,
 	.max_sectors			= 32767,
 	.max_segment_size		= 0xffffffff,
-	.cmd_per_lun			= 7,
+	.cmd_per_lun			= 128,
 	.shost_groups			= mpt3sas_host_groups,
 	.sdev_groups			= mpt3sas_dev_groups,
 	.track_queue_depth		= 1,
@@ -12732,6 +12745,12 @@ static const struct pci_device_id mpt3sas_pci_table[] = {
 		PCI_ANY_ID, PCI_ANY_ID },
 
 	/*
+	 * ATTO Branded ExpressSAS H12xx GT
+	 */
+	{ MPI2_MFGPAGE_VENDORID_ATTO, MPI26_MFGPAGE_DEVID_HARD_SEC_3816,
+		PCI_ANY_ID, PCI_ANY_ID },
+
+	/*
 	 *  Sea SI –> 0x00E4 Invalid, 0x00E7 Tampered
 	 */
 	{ MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_INVALID0_3816,
diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index 91d78d0a38fe..628b08ba6770 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -3612,6 +3612,10 @@ int pm8001_mpi_task_abort_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
 		pm8001_dbg(pm8001_ha, FAIL, " TASK NULL. RETURNING !!!\n");
 		return -1;
 	}
+
+	if (t->task_proto == SAS_PROTOCOL_INTERNAL_ABORT)
+		atomic_dec(&pm8001_dev->running_req);
+
 	ts = &t->task_status;
 	if (status != 0)
 		pm8001_dbg(pm8001_ha, FAIL, "task abort failed status 0x%x ,tag = 0x%x, scp= 0x%x\n",
diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h
index c5e3f380a01c..b08f52673889 100644
--- a/drivers/scsi/pm8001/pm8001_sas.h
+++ b/drivers/scsi/pm8001/pm8001_sas.h
@@ -612,7 +612,7 @@ struct fw_control_info {
 	operations.*/
 	u32			reserved;/* padding required for 64 bit
 	alignment */
-	u8			buffer[1];/* Start of buffer */
+	u8			buffer[];/* Start of buffer */
 };
 struct fw_control_ex {
 	struct fw_control_info *fw_control;
diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c
index bbc4d5890ae6..e045c6e25090 100644
--- a/drivers/scsi/qedf/qedf_main.c
+++ b/drivers/scsi/qedf/qedf_main.c
@@ -1921,6 +1921,27 @@ static int qedf_vport_create(struct fc_vport *vport, bool disabled)
 		fc_vport_setlink(vn_port);
 	}
 
+	/* Set symbolic node name */
+	if (base_qedf->pdev->device == QL45xxx)
+		snprintf(fc_host_symbolic_name(vn_port->host), 256,
+			 "Marvell FastLinQ 45xxx FCoE v%s", QEDF_VERSION);
+
+	if (base_qedf->pdev->device == QL41xxx)
+		snprintf(fc_host_symbolic_name(vn_port->host), 256,
+			 "Marvell FastLinQ 41xxx FCoE v%s", QEDF_VERSION);
+
+	/* Set supported speed */
+	fc_host_supported_speeds(vn_port->host) = n_port->link_supported_speeds;
+
+	/* Set speed */
+	vn_port->link_speed = n_port->link_speed;
+
+	/* Set port type */
+	fc_host_port_type(vn_port->host) = FC_PORTTYPE_NPIV;
+
+	/* Set maxframe size */
+	fc_host_maxframe_size(vn_port->host) = n_port->mfs;
+
 	QEDF_INFO(&(base_qedf->dbg_ctx), QEDF_LOG_NPIV, "vn_port=%p.\n",
 		   vn_port);
 
diff --git a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c
index 5db9bf69dcff..cd75b179410d 100644
--- a/drivers/scsi/qla2xxx/qla_bsg.c
+++ b/drivers/scsi/qla2xxx/qla_bsg.c
@@ -2519,19 +2519,23 @@ qla2x00_get_flash_image_status(struct bsg_job *bsg_job)
 	qla27xx_get_active_image(vha, &active_regions);
 	regions.global_image = active_regions.global;
 
+	if (IS_QLA27XX(ha))
+		regions.nvme_params = QLA27XX_PRIMARY_IMAGE;
+
 	if (IS_QLA28XX(ha)) {
 		qla28xx_get_aux_images(vha, &active_regions);
 		regions.board_config = active_regions.aux.board_config;
 		regions.vpd_nvram = active_regions.aux.vpd_nvram;
 		regions.npiv_config_0_1 = active_regions.aux.npiv_config_0_1;
 		regions.npiv_config_2_3 = active_regions.aux.npiv_config_2_3;
+		regions.nvme_params = active_regions.aux.nvme_params;
 	}
 
 	ql_dbg(ql_dbg_user, vha, 0x70e1,
-	    "%s(%lu): FW=%u BCFG=%u VPDNVR=%u NPIV01=%u NPIV02=%u\n",
+	    "%s(%lu): FW=%u BCFG=%u VPDNVR=%u NPIV01=%u NPIV02=%u NVME_PARAMS=%u\n",
 	    __func__, vha->host_no, regions.global_image,
 	    regions.board_config, regions.vpd_nvram,
-	    regions.npiv_config_0_1, regions.npiv_config_2_3);
+	    regions.npiv_config_0_1, regions.npiv_config_2_3, regions.nvme_params);
 
 	sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
 	    bsg_job->reply_payload.sg_cnt, &regions, sizeof(regions));
diff --git a/drivers/scsi/qla2xxx/qla_bsg.h b/drivers/scsi/qla2xxx/qla_bsg.h
index bb64b9c5a74b..d38dab0a07e8 100644
--- a/drivers/scsi/qla2xxx/qla_bsg.h
+++ b/drivers/scsi/qla2xxx/qla_bsg.h
@@ -314,7 +314,8 @@ struct qla_active_regions {
 	uint8_t vpd_nvram;
 	uint8_t npiv_config_0_1;
 	uint8_t npiv_config_2_3;
-	uint8_t reserved[32];
+	uint8_t nvme_params;
+	uint8_t reserved[31];
 } __packed;
 
 #include "qla_edif_bsg.h"
diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c
index 7cf1f78cbaee..d7e8454304ce 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.c
+++ b/drivers/scsi/qla2xxx/qla_dbg.c
@@ -2455,7 +2455,7 @@ qla83xx_fw_dump_failed_0:
 /****************************************************************************/
 
 /* Write the debug message prefix into @pbuf. */
-static void ql_dbg_prefix(char *pbuf, int pbuf_size,
+static void ql_dbg_prefix(char *pbuf, int pbuf_size, struct pci_dev *pdev,
 			  const scsi_qla_host_t *vha, uint msg_id)
 {
 	if (vha) {
@@ -2464,6 +2464,9 @@ static void ql_dbg_prefix(char *pbuf, int pbuf_size,
 		/* <module-name> [<dev-name>]-<msg-id>:<host>: */
 		snprintf(pbuf, pbuf_size, "%s [%s]-%04x:%lu: ", QL_MSGHDR,
 			 dev_name(&(pdev->dev)), msg_id, vha->host_no);
+	} else if (pdev) {
+		snprintf(pbuf, pbuf_size, "%s [%s]-%04x: : ", QL_MSGHDR,
+			 dev_name(&pdev->dev), msg_id);
 	} else {
 		/* <module-name> [<dev-name>]-<msg-id>: : */
 		snprintf(pbuf, pbuf_size, "%s [%s]-%04x: : ", QL_MSGHDR,
@@ -2491,20 +2494,20 @@ ql_dbg(uint level, scsi_qla_host_t *vha, uint id, const char *fmt, ...)
 	struct va_format vaf;
 	char pbuf[64];
 
-	if (!ql_mask_match(level) && !trace_ql_dbg_log_enabled())
+	ql_ktrace(1, level, pbuf, NULL, vha, id, fmt);
+
+	if (!ql_mask_match(level))
 		return;
 
+	if (!pbuf[0]) /* set by ql_ktrace */
+		ql_dbg_prefix(pbuf, ARRAY_SIZE(pbuf), NULL, vha, id);
+
 	va_start(va, fmt);
 
 	vaf.fmt = fmt;
 	vaf.va = &va;
 
-	ql_dbg_prefix(pbuf, ARRAY_SIZE(pbuf), vha, id);
-
-	if (!ql_mask_match(level))
-		trace_ql_dbg_log(pbuf, &vaf);
-	else
-		pr_warn("%s%pV", pbuf, &vaf);
+	pr_warn("%s%pV", pbuf, &vaf);
 
 	va_end(va);
 
@@ -2533,6 +2536,9 @@ ql_dbg_pci(uint level, struct pci_dev *pdev, uint id, const char *fmt, ...)
 
 	if (pdev == NULL)
 		return;
+
+	ql_ktrace(1, level, pbuf, pdev, NULL, id, fmt);
+
 	if (!ql_mask_match(level))
 		return;
 
@@ -2541,7 +2547,9 @@ ql_dbg_pci(uint level, struct pci_dev *pdev, uint id, const char *fmt, ...)
 	vaf.fmt = fmt;
 	vaf.va = &va;
 
-	ql_dbg_prefix(pbuf, ARRAY_SIZE(pbuf), NULL, id + ql_dbg_offset);
+	if (!pbuf[0]) /* set by ql_ktrace */
+		ql_dbg_prefix(pbuf, ARRAY_SIZE(pbuf), pdev, NULL,
+			      id + ql_dbg_offset);
 	pr_warn("%s%pV", pbuf, &vaf);
 
 	va_end(va);
@@ -2570,7 +2578,10 @@ ql_log(uint level, scsi_qla_host_t *vha, uint id, const char *fmt, ...)
 	if (level > ql_errlev)
 		return;
 
-	ql_dbg_prefix(pbuf, ARRAY_SIZE(pbuf), vha, id);
+	ql_ktrace(0, level, pbuf, NULL, vha, id, fmt);
+
+	if (!pbuf[0]) /* set by ql_ktrace */
+		ql_dbg_prefix(pbuf, ARRAY_SIZE(pbuf), NULL, vha, id);
 
 	va_start(va, fmt);
 
@@ -2621,7 +2632,10 @@ ql_log_pci(uint level, struct pci_dev *pdev, uint id, const char *fmt, ...)
 	if (level > ql_errlev)
 		return;
 
-	ql_dbg_prefix(pbuf, ARRAY_SIZE(pbuf), NULL, id);
+	ql_ktrace(0, level, pbuf, pdev, NULL, id, fmt);
+
+	if (!pbuf[0]) /* set by ql_ktrace */
+		ql_dbg_prefix(pbuf, ARRAY_SIZE(pbuf), pdev, NULL, id);
 
 	va_start(va, fmt);
 
@@ -2716,7 +2730,11 @@ ql_log_qp(uint32_t level, struct qla_qpair *qpair, int32_t id,
 	if (level > ql_errlev)
 		return;
 
-	ql_dbg_prefix(pbuf, ARRAY_SIZE(pbuf), qpair ? qpair->vha : NULL, id);
+	ql_ktrace(0, level, pbuf, NULL, qpair ? qpair->vha : NULL, id, fmt);
+
+	if (!pbuf[0]) /* set by ql_ktrace */
+		ql_dbg_prefix(pbuf, ARRAY_SIZE(pbuf), NULL,
+			      qpair ? qpair->vha : NULL, id);
 
 	va_start(va, fmt);
 
@@ -2762,6 +2780,8 @@ ql_dbg_qp(uint32_t level, struct qla_qpair *qpair, int32_t id,
 	struct va_format vaf;
 	char pbuf[128];
 
+	ql_ktrace(1, level, pbuf, NULL, qpair ? qpair->vha : NULL, id, fmt);
+
 	if (!ql_mask_match(level))
 		return;
 
@@ -2770,8 +2790,10 @@ ql_dbg_qp(uint32_t level, struct qla_qpair *qpair, int32_t id,
 	vaf.fmt = fmt;
 	vaf.va = &va;
 
-	ql_dbg_prefix(pbuf, ARRAY_SIZE(pbuf), qpair ? qpair->vha : NULL,
-		      id + ql_dbg_offset);
+	if (!pbuf[0]) /* set by ql_ktrace */
+		ql_dbg_prefix(pbuf, ARRAY_SIZE(pbuf), NULL,
+			      qpair ? qpair->vha : NULL, id + ql_dbg_offset);
+
 	pr_warn("%s%pV", pbuf, &vaf);
 
 	va_end(va);
diff --git a/drivers/scsi/qla2xxx/qla_dbg.h b/drivers/scsi/qla2xxx/qla_dbg.h
index feeb1666227f..70482b55d240 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.h
+++ b/drivers/scsi/qla2xxx/qla_dbg.h
@@ -385,3 +385,46 @@ ql_mask_match(uint level)
 
 	return level && ((level & ql2xextended_error_logging) == level);
 }
+
+static inline int
+ql_mask_match_ext(uint level, int *log_tunable)
+{
+	if (*log_tunable == 1)
+		*log_tunable = QL_DBG_DEFAULT1_MASK;
+
+	return (level & *log_tunable) == level;
+}
+
+/* Assumes local variable pbuf and pbuf_ready present. */
+#define ql_ktrace(dbg_msg, level, pbuf, pdev, vha, id, fmt) do {	\
+	struct va_format _vaf;						\
+	va_list _va;							\
+	u32 dbg_off = dbg_msg ? ql_dbg_offset : 0;			\
+									\
+	pbuf[0] = 0;							\
+	if (!trace_ql_dbg_log_enabled())				\
+		break;							\
+									\
+	if (dbg_msg && !ql_mask_match_ext(level,			\
+				&ql2xextended_error_logging_ktrace))	\
+		break;							\
+									\
+	ql_dbg_prefix(pbuf, ARRAY_SIZE(pbuf), pdev, vha, id + dbg_off);	\
+									\
+	va_start(_va, fmt);						\
+	_vaf.fmt = fmt;							\
+	_vaf.va = &_va;							\
+									\
+	trace_ql_dbg_log(pbuf, &_vaf);					\
+									\
+	va_end(_va);							\
+} while (0)
+
+#define QLA_ENABLE_KERNEL_TRACING
+
+#ifdef QLA_ENABLE_KERNEL_TRACING
+#define QLA_TRACE_ENABLE(_tr) \
+	trace_array_set_clr_event(_tr, "qla", NULL, true)
+#else /* QLA_ENABLE_KERNEL_TRACING */
+#define QLA_TRACE_ENABLE(_tr)
+#endif /* QLA_ENABLE_KERNEL_TRACING */
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 3ec6a200942e..802eec6407d9 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -35,6 +35,11 @@
 
 #include <uapi/scsi/fc/fc_els.h>
 
+#define QLA_DFS_DEFINE_DENTRY(_debugfs_file_name) \
+	struct dentry *dfs_##_debugfs_file_name
+#define QLA_DFS_ROOT_DEFINE_DENTRY(_debugfs_file_name) \
+	struct dentry *qla_dfs_##_debugfs_file_name
+
 /* Big endian Fibre Channel S_ID (source ID) or D_ID (destination ID). */
 typedef struct {
 	uint8_t domain;
@@ -4768,6 +4773,7 @@ struct active_regions {
 		uint8_t vpd_nvram;
 		uint8_t npiv_config_0_1;
 		uint8_t npiv_config_2_3;
+		uint8_t nvme_params;
 	} aux;
 };
 
@@ -5052,6 +5058,7 @@ struct qla27xx_image_status {
 #define QLA28XX_AUX_IMG_VPD_NVRAM		BIT_1
 #define QLA28XX_AUX_IMG_NPIV_CONFIG_0_1		BIT_2
 #define QLA28XX_AUX_IMG_NPIV_CONFIG_2_3		BIT_3
+#define QLA28XX_AUX_IMG_NVME_PARAMS		BIT_4
 
 #define SET_VP_IDX	1
 #define SET_AL_PA	2
diff --git a/drivers/scsi/qla2xxx/qla_dfs.c b/drivers/scsi/qla2xxx/qla_dfs.c
index 85bd0e468d43..777808af5634 100644
--- a/drivers/scsi/qla2xxx/qla_dfs.c
+++ b/drivers/scsi/qla2xxx/qla_dfs.c
@@ -489,6 +489,99 @@ qla_dfs_naqp_show(struct seq_file *s, void *unused)
 	return 0;
 }
 
+/*
+ * Helper macros for setting up debugfs entries.
+ * _name: The name of the debugfs entry
+ * _ctx_struct: The context that was passed when creating the debugfs file
+ *
+ * QLA_DFS_SETUP_RD could be used when there is only a show function.
+ * - show function take the name qla_dfs_<sysfs-name>_show
+ *
+ * QLA_DFS_SETUP_RW could be used when there are both show and write functions.
+ * - show function take the name  qla_dfs_<sysfs-name>_show
+ * - write function take the name qla_dfs_<sysfs-name>_write
+ *
+ * To have a new debugfs entry, do:
+ * 1. Create a "struct dentry *" in the appropriate structure in the format
+ * dfs_<sysfs-name>
+ * 2. Setup debugfs entries using QLA_DFS_SETUP_RD / QLA_DFS_SETUP_RW
+ * 3. Create debugfs file in qla2x00_dfs_setup() using QLA_DFS_CREATE_FILE
+ * or QLA_DFS_ROOT_CREATE_FILE
+ * 4. Remove debugfs file in qla2x00_dfs_remove() using QLA_DFS_REMOVE_FILE
+ * or QLA_DFS_ROOT_REMOVE_FILE
+ *
+ * Example for creating "TEST" sysfs file:
+ * 1. struct qla_hw_data { ... struct dentry *dfs_TEST; }
+ * 2. QLA_DFS_SETUP_RD(TEST, scsi_qla_host_t);
+ * 3. In qla2x00_dfs_setup():
+ * QLA_DFS_CREATE_FILE(ha, TEST, 0600, ha->dfs_dir, vha);
+ * 4. In qla2x00_dfs_remove():
+ * QLA_DFS_REMOVE_FILE(ha, TEST);
+ */
+#define QLA_DFS_SETUP_RD(_name, _ctx_struct)				\
+static int								\
+qla_dfs_##_name##_open(struct inode *inode, struct file *file)		\
+{									\
+	_ctx_struct *__ctx = inode->i_private;				\
+									\
+	return single_open(file, qla_dfs_##_name##_show, __ctx);	\
+}									\
+									\
+static const struct file_operations qla_dfs_##_name##_ops = {		\
+	.open           = qla_dfs_##_name##_open,			\
+	.read           = seq_read,					\
+	.llseek         = seq_lseek,					\
+	.release        = single_release,				\
+};
+
+#define QLA_DFS_SETUP_RW(_name, _ctx_struct)				\
+static int								\
+qla_dfs_##_name##_open(struct inode *inode, struct file *file)		\
+{									\
+	_ctx_struct *__ctx = inode->i_private;				\
+									\
+	return single_open(file, qla_dfs_##_name##_show, __ctx);	\
+}									\
+									\
+static const struct file_operations qla_dfs_##_name##_ops = {		\
+	.open           = qla_dfs_##_name##_open,			\
+	.read           = seq_read,					\
+	.llseek         = seq_lseek,					\
+	.release        = single_release,				\
+	.write		= qla_dfs_##_name##_write,			\
+};
+
+#define QLA_DFS_ROOT_CREATE_FILE(_name, _perm, _ctx)			\
+	do {								\
+		if (!qla_dfs_##_name)					\
+			qla_dfs_##_name = debugfs_create_file(#_name,	\
+					_perm, qla2x00_dfs_root, _ctx,	\
+					&qla_dfs_##_name##_ops);	\
+	} while (0)
+
+#define QLA_DFS_ROOT_REMOVE_FILE(_name)					\
+	do {								\
+		if (qla_dfs_##_name) {					\
+			debugfs_remove(qla_dfs_##_name);		\
+			qla_dfs_##_name = NULL;				\
+		}							\
+	} while (0)
+
+#define QLA_DFS_CREATE_FILE(_struct, _name, _perm, _parent, _ctx)	\
+	do {								\
+		(_struct)->dfs_##_name = debugfs_create_file(#_name,	\
+					_perm, _parent, _ctx,		\
+					&qla_dfs_##_name##_ops)		\
+	} while (0)
+
+#define QLA_DFS_REMOVE_FILE(_struct, _name)				\
+	do {								\
+		if ((_struct)->dfs_##_name) {				\
+			debugfs_remove((_struct)->dfs_##_name);		\
+			(_struct)->dfs_##_name = NULL;			\
+		}							\
+	} while (0)
+
 static int
 qla_dfs_naqp_open(struct inode *inode, struct file *file)
 {
diff --git a/drivers/scsi/qla2xxx/qla_edif.c b/drivers/scsi/qla2xxx/qla_edif.c
index 400a8b6f3982..00ccc41cef14 100644
--- a/drivers/scsi/qla2xxx/qla_edif.c
+++ b/drivers/scsi/qla2xxx/qla_edif.c
@@ -1551,7 +1551,7 @@ qla24xx_sadb_update(struct bsg_job *bsg_job)
 		ql_dbg(ql_dbg_edif, vha, 0x70a3, "Failed to find port= %06x\n",
 		    sa_frame.port_id.b24);
 		rval = -EINVAL;
-		SET_DID_STATUS(bsg_reply->result, DID_TARGET_FAILURE);
+		SET_DID_STATUS(bsg_reply->result, DID_NO_CONNECT);
 		goto done;
 	}
 
diff --git a/drivers/scsi/qla2xxx/qla_fw.h b/drivers/scsi/qla2xxx/qla_fw.h
index 361015b5763e..f307beed9d29 100644
--- a/drivers/scsi/qla2xxx/qla_fw.h
+++ b/drivers/scsi/qla2xxx/qla_fw.h
@@ -1675,6 +1675,7 @@ struct qla_flt_location {
 #define FLT_REG_VPD_SEC_27XX_1	0x52
 #define FLT_REG_VPD_SEC_27XX_2	0xD8
 #define FLT_REG_VPD_SEC_27XX_3	0xDA
+#define FLT_REG_NVME_PARAMS_27XX	0x21
 
 /* 28xx */
 #define FLT_REG_AUX_IMG_PRI_28XX	0x125
@@ -1691,6 +1692,8 @@ struct qla_flt_location {
 #define FLT_REG_MPI_SEC_28XX		0xF0
 #define FLT_REG_PEP_PRI_28XX		0xD1
 #define FLT_REG_PEP_SEC_28XX		0xF1
+#define FLT_REG_NVME_PARAMS_PRI_28XX	0x14E
+#define FLT_REG_NVME_PARAMS_SEC_28XX	0x179
 
 struct qla_flt_region {
 	__le16	code;
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index 5dd2932382ee..e3256e721be1 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -70,8 +70,6 @@ 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);
-extern void qla2x00_async_login_done(struct scsi_qla_host *, fc_port_t *,
-    uint16_t *);
 struct qla_work_evt *qla2x00_alloc_work(struct scsi_qla_host *,
     enum qla_work_type);
 extern int qla24xx_async_gnl(struct scsi_qla_host *, fc_port_t *);
@@ -163,6 +161,7 @@ extern int ql2xrdpenable;
 extern int ql2xsmartsan;
 extern int ql2xallocfwdump;
 extern int ql2xextended_error_logging;
+extern int ql2xextended_error_logging_ktrace;
 extern int ql2xiidmaenable;
 extern int ql2xmqsupport;
 extern int ql2xfwloadbin;
@@ -193,8 +192,6 @@ extern int ql2xsecenable;
 extern int ql2xenforce_iocb_limit;
 extern int ql2xabts_wait_nvme;
 extern u32 ql2xnvme_queues;
-extern int ql2xrspq_follow_inptr;
-extern int ql2xrspq_follow_inptr_legacy;
 
 extern int qla2x00_loop_reset(scsi_qla_host_t *);
 extern void qla2x00_abort_all_cmds(scsi_qla_host_t *, int);
@@ -279,7 +276,6 @@ extern int qla24xx_vport_create_req_sanity_check(struct fc_vport *);
 extern scsi_qla_host_t *qla24xx_create_vhost(struct fc_vport *);
 
 extern void qla2x00_sp_free_dma(srb_t *sp);
-extern char *qla2x00_get_fw_version_str(struct scsi_qla_host *, char *);
 
 extern void qla2x00_mark_device_lost(scsi_qla_host_t *, fc_port_t *, int);
 extern void qla2x00_mark_all_devices_lost(scsi_qla_host_t *);
@@ -616,7 +612,6 @@ void __qla_consume_iocb(struct scsi_qla_host *vha, void **pkt, struct rsp_que **
 /*
  * Global Function Prototypes in qla_sup.c source file.
  */
-extern void qla2x00_release_nvram_protection(scsi_qla_host_t *);
 extern int qla24xx_read_flash_data(scsi_qla_host_t *, uint32_t *,
     uint32_t, uint32_t);
 extern uint8_t *qla2x00_read_nvram_data(scsi_qla_host_t *, void *, uint32_t,
@@ -788,12 +783,6 @@ extern void qla2x00_init_response_q_entries(struct rsp_que *);
 extern int qla25xx_delete_req_que(struct scsi_qla_host *, struct req_que *);
 extern int qla25xx_delete_rsp_que(struct scsi_qla_host *, struct rsp_que *);
 extern int qla25xx_delete_queues(struct scsi_qla_host *);
-extern uint16_t qla24xx_rd_req_reg(struct qla_hw_data *, uint16_t);
-extern uint16_t qla25xx_rd_req_reg(struct qla_hw_data *, uint16_t);
-extern void qla24xx_wrt_req_reg(struct qla_hw_data *, uint16_t, uint16_t);
-extern void qla25xx_wrt_req_reg(struct qla_hw_data *, uint16_t, uint16_t);
-extern void qla25xx_wrt_rsp_reg(struct qla_hw_data *, uint16_t, uint16_t);
-extern void qla24xx_wrt_rsp_reg(struct qla_hw_data *, uint16_t, uint16_t);
 
 /* qlafx00 related functions */
 extern int qlafx00_pci_config(struct scsi_qla_host *);
@@ -878,8 +867,6 @@ extern void qla82xx_init_flags(struct qla_hw_data *);
 extern void qla82xx_set_drv_active(scsi_qla_host_t *);
 extern int qla82xx_wr_32(struct qla_hw_data *, ulong, u32);
 extern int qla82xx_rd_32(struct qla_hw_data *, ulong);
-extern int qla82xx_rdmem(struct qla_hw_data *, u64, void *, int);
-extern int qla82xx_wrmem(struct qla_hw_data *, u64, void *, int);
 
 /* ISP 8021 IDC */
 extern void qla82xx_clear_drv_active(struct qla_hw_data *);
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index e7fe0e52c11d..e12db95de688 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -7933,6 +7933,9 @@ qla28xx_component_status(
 
 	active_regions->aux.npiv_config_2_3 =
 	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_NPIV_CONFIG_2_3);
+
+	active_regions->aux.nvme_params =
+	    qla28xx_component_bitmask(aux, QLA28XX_AUX_IMG_NVME_PARAMS);
 }
 
 static int
@@ -8041,11 +8044,12 @@ check_valid_image:
 	}
 
 	ql_dbg(ql_dbg_init, vha, 0x018f,
-	    "aux images active: BCFG=%u VPD/NVR=%u NPIV0/1=%u NPIV2/3=%u\n",
+	    "aux images active: BCFG=%u VPD/NVR=%u NPIV0/1=%u NPIV2/3=%u, NVME=%u\n",
 	    active_regions->aux.board_config,
 	    active_regions->aux.vpd_nvram,
 	    active_regions->aux.npiv_config_0_1,
-	    active_regions->aux.npiv_config_2_3);
+	    active_regions->aux.npiv_config_2_3,
+	    active_regions->aux.nvme_params);
 }
 
 void
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 76e79f350a22..e19fde304e5c 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -3764,7 +3764,7 @@ void qla24xx_process_response_queue(struct scsi_qla_host *vha,
 	struct purex_entry_24xx *purex_entry;
 	struct purex_item *pure_item;
 	u16 rsp_in = 0, cur_ring_index;
-	int follow_inptr, is_shadow_hba;
+	int is_shadow_hba;
 
 	if (!ha->flags.fw_started)
 		return;
@@ -3774,25 +3774,18 @@ void qla24xx_process_response_queue(struct scsi_qla_host *vha,
 		qla_cpu_update(rsp->qpair, smp_processor_id());
 	}
 
-#define __update_rsp_in(_update, _is_shadow_hba, _rsp, _rsp_in)		\
+#define __update_rsp_in(_is_shadow_hba, _rsp, _rsp_in)			\
 	do {								\
-		if (_update) {						\
-			_rsp_in = _is_shadow_hba ? *(_rsp)->in_ptr :	\
+		_rsp_in = _is_shadow_hba ? *(_rsp)->in_ptr :		\
 				rd_reg_dword_relaxed((_rsp)->rsp_q_in);	\
-		}							\
 	} while (0)
 
 	is_shadow_hba = IS_SHADOW_REG_CAPABLE(ha);
-	follow_inptr = is_shadow_hba ? ql2xrspq_follow_inptr :
-				ql2xrspq_follow_inptr_legacy;
 
-	__update_rsp_in(follow_inptr, is_shadow_hba, rsp, rsp_in);
+	__update_rsp_in(is_shadow_hba, rsp, rsp_in);
 
-	while ((likely(follow_inptr &&
-		       rsp->ring_index != rsp_in &&
-		       rsp->ring_ptr->signature != RESPONSE_PROCESSED)) ||
-		       (!follow_inptr &&
-			rsp->ring_ptr->signature != RESPONSE_PROCESSED)) {
+	while (rsp->ring_index != rsp_in &&
+		       rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
 		pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
 		cur_ring_index = rsp->ring_index;
 
@@ -3906,8 +3899,7 @@ process_err:
 				}
 				pure_item = qla27xx_copy_fpin_pkt(vha,
 							  (void **)&pkt, &rsp);
-				__update_rsp_in(follow_inptr, is_shadow_hba,
-						rsp, rsp_in);
+				__update_rsp_in(is_shadow_hba, rsp, rsp_in);
 				if (!pure_item)
 					break;
 				qla24xx_queue_purex_item(vha, pure_item,
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 87a93892deac..2c85f3cce726 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -15,6 +15,8 @@
 #include <linux/blk-mq-pci.h>
 #include <linux/refcount.h>
 #include <linux/crash_dump.h>
+#include <linux/trace_events.h>
+#include <linux/trace.h>
 
 #include <scsi/scsi_tcq.h>
 #include <scsi/scsicam.h>
@@ -35,6 +37,8 @@ static int apidev_major;
  */
 struct kmem_cache *srb_cachep;
 
+static struct trace_array *qla_trc_array;
+
 int ql2xfulldump_on_mpifail;
 module_param(ql2xfulldump_on_mpifail, int, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(ql2xfulldump_on_mpifail,
@@ -117,6 +121,11 @@ MODULE_PARM_DESC(ql2xextended_error_logging,
 		"ql2xextended_error_logging=1).\n"
 		"\t\tDo LOGICAL OR of the value to enable more than one level");
 
+int ql2xextended_error_logging_ktrace = 1;
+module_param(ql2xextended_error_logging_ktrace, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(ql2xextended_error_logging_ktrace,
+		"Same BIT definition as ql2xextended_error_logging, but used to control logging to kernel trace buffer (default=1).\n");
+
 int ql2xshiftctondsd = 6;
 module_param(ql2xshiftctondsd, int, S_IRUGO);
 MODULE_PARM_DESC(ql2xshiftctondsd,
@@ -333,21 +342,11 @@ MODULE_PARM_DESC(ql2xabts_wait_nvme,
 		 "To wait for ABTS response on I/O timeouts for NVMe. (default: 1)");
 
 
-u32 ql2xdelay_before_pci_error_handling = 5;
+static u32 ql2xdelay_before_pci_error_handling = 5;
 module_param(ql2xdelay_before_pci_error_handling, uint, 0644);
 MODULE_PARM_DESC(ql2xdelay_before_pci_error_handling,
 	"Number of seconds delayed before qla begin PCI error self-handling (default: 5).\n");
 
-int ql2xrspq_follow_inptr = 1;
-module_param(ql2xrspq_follow_inptr, int, 0644);
-MODULE_PARM_DESC(ql2xrspq_follow_inptr,
-		 "Follow RSP IN pointer for RSP updates for HBAs 27xx and newer (default: 1).");
-
-int ql2xrspq_follow_inptr_legacy = 1;
-module_param(ql2xrspq_follow_inptr_legacy, int, 0644);
-MODULE_PARM_DESC(ql2xrspq_follow_inptr_legacy,
-		 "Follow RSP IN pointer for RSP updates for HBAs older than 27XX. (default: 1).");
-
 static void qla2x00_clear_drv_active(struct qla_hw_data *);
 static void qla2x00_free_device(scsi_qla_host_t *);
 static void qla2xxx_map_queues(struct Scsi_Host *shost);
@@ -2849,6 +2848,27 @@ static void qla2x00_iocb_work_fn(struct work_struct *work)
 	spin_unlock_irqrestore(&vha->work_lock, flags);
 }
 
+static void
+qla_trace_init(void)
+{
+	qla_trc_array = trace_array_get_by_name("qla2xxx");
+	if (!qla_trc_array) {
+		ql_log(ql_log_fatal, NULL, 0x0001,
+		       "Unable to create qla2xxx trace instance, instance logging will be disabled.\n");
+		return;
+	}
+
+	QLA_TRACE_ENABLE(qla_trc_array);
+}
+
+static void
+qla_trace_uninit(void)
+{
+	if (!qla_trc_array)
+		return;
+	trace_array_put(qla_trc_array);
+}
+
 /*
  * PCI driver interface
  */
@@ -3530,7 +3550,7 @@ skip_dpc:
 		qla_dual_mode_enabled(base_vha))
 		scsi_scan_host(host);
 	else
-		ql_dbg(ql_dbg_init, base_vha, 0x0122,
+		ql_log(ql_log_info, base_vha, 0x0122,
 			"skipping scsi_scan_host() for non-initiator port\n");
 
 	qla2x00_alloc_sysfs_attr(base_vha);
@@ -8189,6 +8209,8 @@ qla2x00_module_init(void)
 	BUILD_BUG_ON(sizeof(sw_info_t) != 32);
 	BUILD_BUG_ON(sizeof(target_id_t) != 2);
 
+	qla_trace_init();
+
 	/* Allocate cache for SRBs. */
 	srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
 	    SLAB_HWCACHE_ALIGN, NULL);
@@ -8267,6 +8289,8 @@ qlt_exit:
 
 destroy_cache:
 	kmem_cache_destroy(srb_cachep);
+
+	qla_trace_uninit();
 	return ret;
 }
 
@@ -8285,6 +8309,7 @@ qla2x00_module_exit(void)
 	fc_release_transport(qla2xxx_transport_template);
 	qlt_exit();
 	kmem_cache_destroy(srb_cachep);
+	qla_trace_uninit();
 }
 
 module_init(qla2x00_module_init);
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 4acff4e84b90..bb754a950802 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -1557,11 +1557,11 @@ int qlt_stop_phase1(struct qla_tgt *tgt)
 	ql_dbg(ql_dbg_tgt_mgt, vha, 0xf009,
 	    "Waiting for sess works (tgt %p)", tgt);
 	spin_lock_irqsave(&tgt->sess_work_lock, flags);
-	while (!list_empty(&tgt->sess_works_list)) {
+	do {
 		spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
-		flush_scheduled_work();
+		flush_work(&tgt->sess_work);
 		spin_lock_irqsave(&tgt->sess_work_lock, flags);
-	}
+	} while (!list_empty(&tgt->sess_works_list));
 	spin_unlock_irqrestore(&tgt->sess_work_lock, flags);
 
 	ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00a,
@@ -6336,69 +6336,6 @@ out_term:
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 }
 
-static void qlt_tmr_work(struct qla_tgt *tgt,
-	struct qla_tgt_sess_work_param *prm)
-{
-	struct atio_from_isp *a = &prm->tm_iocb2;
-	struct scsi_qla_host *vha = tgt->vha;
-	struct qla_hw_data *ha = vha->hw;
-	struct fc_port *sess;
-	unsigned long flags;
-	be_id_t s_id;
-	int rc;
-	u64 unpacked_lun;
-	int fn;
-	void *iocb;
-
-	spin_lock_irqsave(&ha->tgt.sess_lock, flags);
-
-	if (tgt->tgt_stop)
-		goto out_term2;
-
-	s_id = prm->tm_iocb2.u.isp24.fcp_hdr.s_id;
-	sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id);
-	if (!sess) {
-		spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
-
-		sess = qlt_make_local_sess(vha, s_id);
-		/* sess has got an extra creation ref */
-
-		spin_lock_irqsave(&ha->tgt.sess_lock, flags);
-		if (!sess)
-			goto out_term2;
-	} else {
-		if (sess->deleted) {
-			goto out_term2;
-		}
-
-		if (!kref_get_unless_zero(&sess->sess_kref)) {
-			ql_dbg(ql_dbg_tgt_tmr, vha, 0xf020,
-			    "%s: kref_get fail %8phC\n",
-			     __func__, sess->port_name);
-			goto out_term2;
-		}
-	}
-
-	iocb = a;
-	fn = a->u.isp24.fcp_cmnd.task_mgmt_flags;
-	unpacked_lun =
-	    scsilun_to_int((struct scsi_lun *)&a->u.isp24.fcp_cmnd.lun);
-
-	rc = qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0);
-	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
-
-	ha->tgt.tgt_ops->put_sess(sess);
-
-	if (rc != 0)
-		goto out_term;
-	return;
-
-out_term2:
-	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
-out_term:
-	qlt_send_term_exchange(ha->base_qpair, NULL, &prm->tm_iocb2, 1, 0);
-}
-
 static void qlt_sess_work_fn(struct work_struct *work)
 {
 	struct qla_tgt *tgt = container_of(work, struct qla_tgt, sess_work);
@@ -6425,9 +6362,6 @@ static void qlt_sess_work_fn(struct work_struct *work)
 		case QLA_TGT_SESS_WORK_ABORT:
 			qlt_abort_work(tgt, prm);
 			break;
-		case QLA_TGT_SESS_WORK_TM:
-			qlt_tmr_work(tgt, prm);
-			break;
 		default:
 			BUG_ON(1);
 			break;
@@ -6514,7 +6448,6 @@ int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha)
 	tgt->ha = ha;
 	tgt->vha = base_vha;
 	init_waitqueue_head(&tgt->waitQ);
-	INIT_LIST_HEAD(&tgt->del_sess_list);
 	spin_lock_init(&tgt->sess_work_lock);
 	INIT_WORK(&tgt->sess_work, qlt_sess_work_fn);
 	INIT_LIST_HEAD(&tgt->sess_works_list);
diff --git a/drivers/scsi/qla2xxx/qla_target.h b/drivers/scsi/qla2xxx/qla_target.h
index de3942b8efc4..7df86578214f 100644
--- a/drivers/scsi/qla2xxx/qla_target.h
+++ b/drivers/scsi/qla2xxx/qla_target.h
@@ -813,9 +813,6 @@ struct qla_tgt {
 	/* Count of sessions refering qla_tgt. Protected by hardware_lock. */
 	int sess_count;
 
-	/* Protected by hardware_lock */
-	struct list_head del_sess_list;
-
 	spinlock_t sess_work_lock;
 	struct list_head sess_works_list;
 	struct work_struct sess_work;
@@ -945,7 +942,6 @@ struct qla_tgt_sess_work_param {
 	struct list_head sess_works_list_entry;
 
 #define QLA_TGT_SESS_WORK_ABORT	1
-#define QLA_TGT_SESS_WORK_TM	2
 	int type;
 
 	union {
@@ -1079,8 +1075,6 @@ extern void qlt_81xx_config_nvram_stage2(struct scsi_qla_host *,
 	struct init_cb_81xx *);
 extern void qlt_81xx_config_nvram_stage1(struct scsi_qla_host *,
 	struct nvram_81xx *);
-extern int qlt_24xx_process_response_error(struct scsi_qla_host *,
-	struct sts_entry_24xx *);
 extern void qlt_modify_vp_config(struct scsi_qla_host *,
 	struct vp_config_entry_24xx *);
 extern void qlt_probe_one_stage1(struct scsi_qla_host *, struct qla_hw_data *);
diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h
index f3257d46b6d2..03f3e2cd62b5 100644
--- a/drivers/scsi/qla2xxx/qla_version.h
+++ b/drivers/scsi/qla2xxx/qla_version.h
@@ -6,9 +6,9 @@
 /*
  * Driver version
  */
-#define QLA2XXX_VERSION      "10.02.07.800-k"
+#define QLA2XXX_VERSION      "10.02.07.900-k"
 
 #define QLA_DRIVER_MAJOR_VER	10
 #define QLA_DRIVER_MINOR_VER	2
 #define QLA_DRIVER_PATCH_VER	7
-#define QLA_DRIVER_BETA_VER	800
+#define QLA_DRIVER_BETA_VER	900
diff --git a/drivers/scsi/qlogicpti.c b/drivers/scsi/qlogicpti.c
index 57f2f4135a06..8c961ff03fcd 100644
--- a/drivers/scsi/qlogicpti.c
+++ b/drivers/scsi/qlogicpti.c
@@ -909,7 +909,8 @@ static inline int load_cmd(struct scsi_cmnd *Cmnd, struct Command_Entry *cmd,
 		sg_count = dma_map_sg(&qpti->op->dev, sg,
 				      scsi_sg_count(Cmnd),
 				      Cmnd->sc_data_direction);
-
+		if (!sg_count)
+			return -1;
 		ds = cmd->dataseg;
 		cmd->segment_cnt = sg_count;
 
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 786fb963cf3f..6995c8979230 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -334,6 +334,7 @@ enum blk_eh_timer_return scsi_timeout(struct request *req)
 	trace_scsi_dispatch_cmd_timeout(scmd);
 	scsi_log_completion(scmd, TIMEOUT_ERROR);
 
+	atomic_inc(&scmd->device->iotmo_cnt);
 	if (host->eh_deadline != -1 && !host->last_reset)
 		host->last_reset = jiffies;
 
@@ -514,6 +515,11 @@ static void scsi_report_sense(struct scsi_device *sdev,
 	}
 }
 
+static inline void set_scsi_ml_byte(struct scsi_cmnd *cmd, u8 status)
+{
+	cmd->result = (cmd->result & 0xffff00ff) | (status << 8);
+}
+
 /**
  * scsi_check_sense - Examine scsi cmd sense
  * @scmd:	Cmd to have sense checked.
@@ -644,7 +650,7 @@ enum scsi_disposition scsi_check_sense(struct scsi_cmnd *scmd)
 	case DATA_PROTECT:
 		if (sshdr.asc == 0x27 && sshdr.ascq == 0x07) {
 			/* Thin provisioning hard threshold reached */
-			set_host_byte(scmd, DID_ALLOC_FAILURE);
+			set_scsi_ml_byte(scmd, SCSIML_STAT_NOSPC);
 			return SUCCESS;
 		}
 		fallthrough;
@@ -652,14 +658,14 @@ enum scsi_disposition scsi_check_sense(struct scsi_cmnd *scmd)
 	case VOLUME_OVERFLOW:
 	case MISCOMPARE:
 	case BLANK_CHECK:
-		set_host_byte(scmd, DID_TARGET_FAILURE);
+		set_scsi_ml_byte(scmd, SCSIML_STAT_TGT_FAILURE);
 		return SUCCESS;
 
 	case MEDIUM_ERROR:
 		if (sshdr.asc == 0x11 || /* UNRECOVERED READ ERR */
 		    sshdr.asc == 0x13 || /* AMNF DATA FIELD */
 		    sshdr.asc == 0x14) { /* RECORD NOT FOUND */
-			set_host_byte(scmd, DID_MEDIUM_ERROR);
+			set_scsi_ml_byte(scmd, SCSIML_STAT_MED_ERROR);
 			return SUCCESS;
 		}
 		return NEEDS_RETRY;
@@ -668,7 +674,7 @@ enum scsi_disposition scsi_check_sense(struct scsi_cmnd *scmd)
 		if (scmd->device->retry_hwerror)
 			return ADD_TO_MLQUEUE;
 		else
-			set_host_byte(scmd, DID_TARGET_FAILURE);
+			set_scsi_ml_byte(scmd, SCSIML_STAT_TGT_FAILURE);
 		fallthrough;
 
 	case ILLEGAL_REQUEST:
@@ -678,7 +684,7 @@ enum scsi_disposition scsi_check_sense(struct scsi_cmnd *scmd)
 		    sshdr.asc == 0x24 || /* Invalid field in cdb */
 		    sshdr.asc == 0x26 || /* Parameter value invalid */
 		    sshdr.asc == 0x27) { /* Write protected */
-			set_host_byte(scmd, DID_TARGET_FAILURE);
+			set_scsi_ml_byte(scmd, SCSIML_STAT_TGT_FAILURE);
 		}
 		return SUCCESS;
 
@@ -1983,7 +1989,7 @@ enum scsi_disposition scsi_decide_disposition(struct scsi_cmnd *scmd)
 	case SAM_STAT_RESERVATION_CONFLICT:
 		sdev_printk(KERN_INFO, scmd->device,
 			    "reservation conflict\n");
-		set_host_byte(scmd, DID_NEXUS_FAILURE);
+		set_scsi_ml_byte(scmd, SCSIML_STAT_RESV_CONFLICT);
 		return SUCCESS; /* causes immediate i/o error */
 	}
 	return FAILED;
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index d7ec4ab2b111..8b89fab7c420 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -581,16 +581,36 @@ static bool scsi_end_request(struct request *req, blk_status_t error,
 	return false;
 }
 
+static inline u8 get_scsi_ml_byte(int result)
+{
+	return (result >> 8) & 0xff;
+}
+
 /**
  * scsi_result_to_blk_status - translate a SCSI result code into blk_status_t
- * @cmd:	SCSI command
  * @result:	scsi error code
  *
- * Translate a SCSI result code into a blk_status_t value. May reset the host
- * byte of @cmd->result.
+ * Translate a SCSI result code into a blk_status_t value.
  */
-static blk_status_t scsi_result_to_blk_status(struct scsi_cmnd *cmd, int result)
+static blk_status_t scsi_result_to_blk_status(int result)
 {
+	/*
+	 * Check the scsi-ml byte first in case we converted a host or status
+	 * byte.
+	 */
+	switch (get_scsi_ml_byte(result)) {
+	case SCSIML_STAT_OK:
+		break;
+	case SCSIML_STAT_RESV_CONFLICT:
+		return BLK_STS_NEXUS;
+	case SCSIML_STAT_NOSPC:
+		return BLK_STS_NOSPC;
+	case SCSIML_STAT_MED_ERROR:
+		return BLK_STS_MEDIUM;
+	case SCSIML_STAT_TGT_FAILURE:
+		return BLK_STS_TARGET;
+	}
+
 	switch (host_byte(result)) {
 	case DID_OK:
 		if (scsi_status_is_good(result))
@@ -599,18 +619,6 @@ static blk_status_t scsi_result_to_blk_status(struct scsi_cmnd *cmd, int result)
 	case DID_TRANSPORT_FAILFAST:
 	case DID_TRANSPORT_MARGINAL:
 		return BLK_STS_TRANSPORT;
-	case DID_TARGET_FAILURE:
-		set_host_byte(cmd, DID_OK);
-		return BLK_STS_TARGET;
-	case DID_NEXUS_FAILURE:
-		set_host_byte(cmd, DID_OK);
-		return BLK_STS_NEXUS;
-	case DID_ALLOC_FAILURE:
-		set_host_byte(cmd, DID_OK);
-		return BLK_STS_NOSPC;
-	case DID_MEDIUM_ERROR:
-		set_host_byte(cmd, DID_OK);
-		return BLK_STS_MEDIUM;
 	default:
 		return BLK_STS_IOERR;
 	}
@@ -697,7 +705,7 @@ static void scsi_io_completion_action(struct scsi_cmnd *cmd, int result)
 	if (sense_valid)
 		sense_current = !scsi_sense_is_deferred(&sshdr);
 
-	blk_stat = scsi_result_to_blk_status(cmd, result);
+	blk_stat = scsi_result_to_blk_status(result);
 
 	if (host_byte(result) == DID_RESET) {
 		/* Third party bus reset or reset for error recovery
@@ -878,14 +886,14 @@ static int scsi_io_completion_nz_result(struct scsi_cmnd *cmd, int result,
 					     SCSI_SENSE_BUFFERSIZE);
 		}
 		if (sense_current)
-			*blk_statp = scsi_result_to_blk_status(cmd, result);
+			*blk_statp = scsi_result_to_blk_status(result);
 	} else if (blk_rq_bytes(req) == 0 && sense_current) {
 		/*
 		 * Flush commands do not transfers any data, and thus cannot use
 		 * good_bytes != blk_rq_bytes(req) as the signal for an error.
 		 * This sets *blk_statp explicitly for the problem case.
 		 */
-		*blk_statp = scsi_result_to_blk_status(cmd, result);
+		*blk_statp = scsi_result_to_blk_status(result);
 	}
 	/*
 	 * Recovered errors need reporting, but they're always treated as
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
index f385b3f04d6e..c52de9a973e4 100644
--- a/drivers/scsi/scsi_priv.h
+++ b/drivers/scsi/scsi_priv.h
@@ -19,6 +19,17 @@ struct scsi_nl_hdr;
 #define SCSI_CMD_RETRIES_NO_LIMIT -1
 
 /*
+ * Error codes used by scsi-ml internally. These must not be used by drivers.
+ */
+enum scsi_ml_status {
+	SCSIML_STAT_OK			= 0x00,
+	SCSIML_STAT_RESV_CONFLICT	= 0x01,	/* Reservation conflict */
+	SCSIML_STAT_NOSPC		= 0x02,	/* Space allocation on the dev failed */
+	SCSIML_STAT_MED_ERROR		= 0x03,	/* Medium error */
+	SCSIML_STAT_TGT_FAILURE		= 0x04,	/* Permanent target failure */
+};
+
+/*
  * Scsi Error Handler Flags
  */
 #define SCSI_EH_ABORT_SCHEDULED	0x0002	/* Abort has been scheduled */
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 5d61f58399dc..c95177ca6ed2 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -976,6 +976,7 @@ static DEVICE_ATTR(field, S_IRUGO, show_iostat_##field, NULL)
 show_sdev_iostat(iorequest_cnt);
 show_sdev_iostat(iodone_cnt);
 show_sdev_iostat(ioerr_cnt);
+show_sdev_iostat(iotmo_cnt);
 
 static ssize_t
 sdev_show_modalias(struct device *dev, struct device_attribute *attr, char *buf)
@@ -1295,6 +1296,7 @@ static struct attribute *scsi_sdev_attrs[] = {
 	&dev_attr_iorequest_cnt.attr,
 	&dev_attr_iodone_cnt.attr,
 	&dev_attr_ioerr_cnt.attr,
+	&dev_attr_iotmo_cnt.attr,
 	&dev_attr_modalias.attr,
 	&dev_attr_queue_depth.attr,
 	&dev_attr_queue_type.attr,
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index a2524106206d..8934160c4a33 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -543,7 +543,7 @@ fc_host_post_fc_event(struct Scsi_Host *shost, u32 event_number,
 	struct nlmsghdr	*nlh;
 	struct fc_nl_event *event;
 	const char *name;
-	u32 len;
+	size_t len, padding;
 	int err;
 
 	if (!data_buf || data_len < 4)
@@ -554,7 +554,7 @@ fc_host_post_fc_event(struct Scsi_Host *shost, u32 event_number,
 		goto send_fail;
 	}
 
-	len = FC_NL_MSGALIGN(sizeof(*event) + data_len);
+	len = FC_NL_MSGALIGN(sizeof(*event) - sizeof(event->event_data) + data_len);
 
 	skb = nlmsg_new(len, GFP_KERNEL);
 	if (!skb) {
@@ -578,7 +578,9 @@ fc_host_post_fc_event(struct Scsi_Host *shost, u32 event_number,
 	event->event_num = event_number;
 	event->event_code = event_code;
 	if (data_len)
-		memcpy(&event->event_data, data_buf, data_len);
+		memcpy(event->event_data_flex, data_buf, data_len);
+	padding = len - offsetof(typeof(*event), event_data_flex) - data_len;
+	memset(event->event_data_flex + data_len, 0, padding);
 
 	nlmsg_multicast(scsi_nl_sock, skb, 0, SCSI_NL_GRP_FC_EVENTS,
 			GFP_KERNEL);
@@ -1170,7 +1172,7 @@ static int fc_rport_set_dev_loss_tmo(struct fc_rport *rport,
 	return 0;
 }
 
-fc_rport_show_function(dev_loss_tmo, "%d\n", 20, )
+fc_rport_show_function(dev_loss_tmo, "%u\n", 20, )
 static ssize_t
 store_fc_rport_dev_loss_tmo(struct device *dev, struct device_attribute *attr,
 			    const char *buf, size_t count)
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 55e7c07ebe4c..b90a440e135d 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -4248,11 +4248,10 @@ static int st_probe(struct device *dev)
 	struct st_partstat *STps;
 	struct st_buffer *buffer;
 	int i, error;
-	char *stp;
 
 	if (SDp->type != TYPE_TAPE)
 		return -ENODEV;
-	if ((stp = st_incompatible(SDp))) {
+	if (st_incompatible(SDp)) {
 		sdev_printk(KERN_INFO, SDp,
 			    "OnStream tapes are no longer supported;\n");
 		sdev_printk(KERN_INFO, SDp,
diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c
index e6420f2127ce..8def242675ef 100644
--- a/drivers/scsi/stex.c
+++ b/drivers/scsi/stex.c
@@ -665,16 +665,17 @@ static int stex_queuecommand_lck(struct scsi_cmnd *cmd)
 		return 0;
 	case PASSTHRU_CMD:
 		if (cmd->cmnd[1] == PASSTHRU_GET_DRVVER) {
-			struct st_drvver ver;
+			const struct st_drvver ver = {
+				.major = ST_VER_MAJOR,
+				.minor = ST_VER_MINOR,
+				.oem = ST_OEM,
+				.build = ST_BUILD_VER,
+				.signature[0] = PASSTHRU_SIGNATURE,
+				.console_id = host->max_id - 1,
+				.host_no = hba->host->host_no,
+			};
 			size_t cp_len = sizeof(ver);
 
-			ver.major = ST_VER_MAJOR;
-			ver.minor = ST_VER_MINOR;
-			ver.oem = ST_OEM;
-			ver.build = ST_BUILD_VER;
-			ver.signature[0] = PASSTHRU_SIGNATURE;
-			ver.console_id = host->max_id - 1;
-			ver.host_no = hba->host->host_no;
 			cp_len = scsi_sg_copy_from_buffer(cmd, &ver, cp_len);
 			if (sizeof(ver) == cp_len)
 				cmd->result = DID_OK << 16;
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index 8ced292c4b96..573f89eade3b 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -1029,7 +1029,7 @@ do_work:
 	 */
 	wrk = kmalloc(sizeof(struct storvsc_scan_work), GFP_ATOMIC);
 	if (!wrk) {
-		set_host_byte(scmnd, DID_TARGET_FAILURE);
+		set_host_byte(scmnd, DID_BAD_TARGET);
 		return;
 	}
 
diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index 077a8e24bd28..2a79ab16134b 100644
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -141,10 +141,10 @@ static void virtscsi_complete_cmd(struct virtio_scsi *vscsi, void *buf)
 		set_host_byte(sc, DID_TRANSPORT_DISRUPTED);
 		break;
 	case VIRTIO_SCSI_S_TARGET_FAILURE:
-		set_host_byte(sc, DID_TARGET_FAILURE);
+		set_host_byte(sc, DID_BAD_TARGET);
 		break;
 	case VIRTIO_SCSI_S_NEXUS_FAILURE:
-		set_host_byte(sc, DID_NEXUS_FAILURE);
+		set_status_byte(sc, SAM_STAT_RESERVATION_CONFLICT);
 		break;
 	default:
 		scmd_printk(KERN_WARNING, sc, "Unknown response %d",
diff --git a/drivers/scsi/wd33c93.c b/drivers/scsi/wd33c93.c
index 3fe562047d85..e4fafc77bd20 100644
--- a/drivers/scsi/wd33c93.c
+++ b/drivers/scsi/wd33c93.c
@@ -162,65 +162,6 @@ module_param(setup_strings, charp, 0);
 
 static void wd33c93_execute(struct Scsi_Host *instance);
 
-#ifdef CONFIG_WD33C93_PIO
-static inline uchar
-read_wd33c93(const wd33c93_regs regs, uchar reg_num)
-{
-	uchar data;
-
-	outb(reg_num, regs.SASR);
-	data = inb(regs.SCMD);
-	return data;
-}
-
-static inline unsigned long
-read_wd33c93_count(const wd33c93_regs regs)
-{
-	unsigned long value;
-
-	outb(WD_TRANSFER_COUNT_MSB, regs.SASR);
-	value = inb(regs.SCMD) << 16;
-	value |= inb(regs.SCMD) << 8;
-	value |= inb(regs.SCMD);
-	return value;
-}
-
-static inline uchar
-read_aux_stat(const wd33c93_regs regs)
-{
-	return inb(regs.SASR);
-}
-
-static inline void
-write_wd33c93(const wd33c93_regs regs, uchar reg_num, uchar value)
-{
-      outb(reg_num, regs.SASR);
-      outb(value, regs.SCMD);
-}
-
-static inline void
-write_wd33c93_count(const wd33c93_regs regs, unsigned long value)
-{
-	outb(WD_TRANSFER_COUNT_MSB, regs.SASR);
-	outb((value >> 16) & 0xff, regs.SCMD);
-	outb((value >> 8) & 0xff, regs.SCMD);
-	outb( value & 0xff, regs.SCMD);
-}
-
-#define write_wd33c93_cmd(regs, cmd) \
-	write_wd33c93((regs), WD_COMMAND, (cmd))
-
-static inline void
-write_wd33c93_cdb(const wd33c93_regs regs, uint len, uchar cmnd[])
-{
-	int i;
-
-	outb(WD_CDB_1, regs.SASR);
-	for (i=0; i<len; i++)
-		outb(cmnd[i], regs.SCMD);
-}
-
-#else /* CONFIG_WD33C93_PIO */
 static inline uchar
 read_wd33c93(const wd33c93_regs regs, uchar reg_num)
 {
@@ -287,7 +228,6 @@ write_wd33c93_cdb(const wd33c93_regs regs, uint len, uchar cmnd[])
 	for (i = 0; i < len; i++)
 		*regs.SCMD = cmnd[i];
 }
-#endif /* CONFIG_WD33C93_PIO */
 
 static inline uchar
 read_1_byte(const wd33c93_regs regs)
diff --git a/drivers/scsi/wd33c93.h b/drivers/scsi/wd33c93.h
index b3800baccd2c..e5e4254b1477 100644
--- a/drivers/scsi/wd33c93.h
+++ b/drivers/scsi/wd33c93.h
@@ -180,13 +180,8 @@
 
    /* This is what the 3393 chip looks like to us */
 typedef struct {
-#ifdef CONFIG_WD33C93_PIO
-   unsigned int   SASR;
-   unsigned int   SCMD;
-#else
    volatile unsigned char  *SASR;
    volatile unsigned char  *SCMD;
-#endif
 } wd33c93_regs;
 
 
diff --git a/drivers/scsi/xen-scsifront.c b/drivers/scsi/xen-scsifront.c
index 51afc66e839d..66b316d173b0 100644
--- a/drivers/scsi/xen-scsifront.c
+++ b/drivers/scsi/xen-scsifront.c
@@ -289,14 +289,6 @@ static unsigned int scsifront_host_byte(int32_t rslt)
 		return DID_TRANSPORT_DISRUPTED;
 	case XEN_VSCSIIF_RSLT_HOST_TRANSPORT_FAILFAST:
 		return DID_TRANSPORT_FAILFAST;
-	case XEN_VSCSIIF_RSLT_HOST_TARGET_FAILURE:
-		return DID_TARGET_FAILURE;
-	case XEN_VSCSIIF_RSLT_HOST_NEXUS_FAILURE:
-		return DID_NEXUS_FAILURE;
-	case XEN_VSCSIIF_RSLT_HOST_ALLOC_FAILURE:
-		return DID_ALLOC_FAILURE;
-	case XEN_VSCSIIF_RSLT_HOST_MEDIUM_ERROR:
-		return DID_MEDIUM_ERROR;
 	case XEN_VSCSIIF_RSLT_HOST_TRANSPORT_MARGINAL:
 		return DID_TRANSPORT_MARGINAL;
 	default:
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index fb91423a4e2e..c8470e7c0e10 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -164,6 +164,9 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd)
 	spin_lock(&dev->t10_alua.tg_pt_gps_lock);
 	list_for_each_entry(tg_pt_gp, &dev->t10_alua.tg_pt_gps_list,
 			tg_pt_gp_list) {
+		/* Skip empty port groups */
+		if (!tg_pt_gp->tg_pt_gp_members)
+			continue;
 		/*
 		 * Check if the Target port group and Target port descriptor list
 		 * based on tg_pt_gp_members count will fit into the response payload.
diff --git a/drivers/target/target_core_internal.h b/drivers/target/target_core_internal.h
index a889a6237d9c..30fcf69e1a1d 100644
--- a/drivers/target/target_core_internal.h
+++ b/drivers/target/target_core_internal.h
@@ -133,8 +133,6 @@ struct se_node_acl *core_tpg_add_initiator_node_acl(struct se_portal_group *tpg,
 void core_tpg_del_initiator_node_acl(struct se_node_acl *acl);
 
 /* target_core_transport.c */
-extern struct kmem_cache *se_tmr_req_cache;
-
 int	init_se_kmem_caches(void);
 void	release_se_kmem_caches(void);
 u32	scsi_get_new_index(scsi_index_t);
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index 8a7306e5e133..69a4c9581e80 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -500,7 +500,7 @@ static int pscsi_configure_device(struct se_device *dev)
 			continue;
 		/*
 		 * Functions will release the held struct scsi_host->host_lock
-		 * before calling calling pscsi_add_device_to_list() to register
+		 * before calling pscsi_add_device_to_list() to register
 		 * struct scsi_device with target_core_mod.
 		 */
 		switch (sd->type) {
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index c14441c89bed..7cca3b15472b 100644
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -115,6 +115,12 @@ spc_emulate_inquiry_std(struct se_cmd *cmd, unsigned char *buf)
 			buf[5] |= 0x1;
 	}
 
+	/*
+	 * Set MULTIP bit to indicate presence of multiple SCSI target ports
+	 */
+	if (dev->export_count > 1)
+		buf[6] |= 0x10;
+
 	buf[7] = 0x2; /* CmdQue=1 */
 
 	/*
diff --git a/drivers/ufs/core/ufs-sysfs.c b/drivers/ufs/core/ufs-sysfs.c
index 0a088b47d557..53aea56d1de1 100644
--- a/drivers/ufs/core/ufs-sysfs.c
+++ b/drivers/ufs/core/ufs-sysfs.c
@@ -225,12 +225,13 @@ static ssize_t wb_on_store(struct device *dev, struct device_attribute *attr,
 	unsigned int wb_enable;
 	ssize_t res;
 
-	if (!ufshcd_is_wb_allowed(hba) || ufshcd_is_clkscaling_supported(hba)) {
+	if (!ufshcd_is_wb_allowed(hba) || (ufshcd_is_clkscaling_supported(hba)
+		&& ufshcd_enable_wb_if_scaling_up(hba))) {
 		/*
 		 * If the platform supports UFSHCD_CAP_CLK_SCALING, turn WB
 		 * on/off will be done while clock scaling up/down.
 		 */
-		dev_warn(dev, "To control WB through wb_on is not allowed!\n");
+		dev_warn(dev, "It is not allowed to configure WB!\n");
 		return -EOPNOTSUPP;
 	}
 
@@ -254,6 +255,49 @@ out:
 	return res < 0 ? res : count;
 }
 
+static ssize_t enable_wb_buf_flush_show(struct device *dev,
+				    struct device_attribute *attr,
+				    char *buf)
+{
+	struct ufs_hba *hba = dev_get_drvdata(dev);
+
+	return sysfs_emit(buf, "%d\n", hba->dev_info.wb_buf_flush_enabled);
+}
+
+static ssize_t enable_wb_buf_flush_store(struct device *dev,
+				     struct device_attribute *attr,
+				     const char *buf, size_t count)
+{
+	struct ufs_hba *hba = dev_get_drvdata(dev);
+	unsigned int enable_wb_buf_flush;
+	ssize_t res;
+
+	if (!ufshcd_is_wb_buf_flush_allowed(hba)) {
+		dev_warn(dev, "It is not allowed to configure WB buf flushing!\n");
+		return -EOPNOTSUPP;
+	}
+
+	if (kstrtouint(buf, 0, &enable_wb_buf_flush))
+		return -EINVAL;
+
+	if (enable_wb_buf_flush != 0 && enable_wb_buf_flush != 1)
+		return -EINVAL;
+
+	down(&hba->host_sem);
+	if (!ufshcd_is_user_access_allowed(hba)) {
+		res = -EBUSY;
+		goto out;
+	}
+
+	ufshcd_rpm_get_sync(hba);
+	res = ufshcd_wb_toggle_buf_flush(hba, enable_wb_buf_flush);
+	ufshcd_rpm_put_sync(hba);
+
+out:
+	up(&hba->host_sem);
+	return res < 0 ? res : count;
+}
+
 static DEVICE_ATTR_RW(rpm_lvl);
 static DEVICE_ATTR_RO(rpm_target_dev_state);
 static DEVICE_ATTR_RO(rpm_target_link_state);
@@ -262,6 +306,7 @@ static DEVICE_ATTR_RO(spm_target_dev_state);
 static DEVICE_ATTR_RO(spm_target_link_state);
 static DEVICE_ATTR_RW(auto_hibern8);
 static DEVICE_ATTR_RW(wb_on);
+static DEVICE_ATTR_RW(enable_wb_buf_flush);
 
 static struct attribute *ufs_sysfs_ufshcd_attrs[] = {
 	&dev_attr_rpm_lvl.attr,
@@ -272,6 +317,7 @@ static struct attribute *ufs_sysfs_ufshcd_attrs[] = {
 	&dev_attr_spm_target_link_state.attr,
 	&dev_attr_auto_hibern8.attr,
 	&dev_attr_wb_on.attr,
+	&dev_attr_enable_wb_buf_flush.attr,
 	NULL
 };
 
@@ -279,6 +325,40 @@ static const struct attribute_group ufs_sysfs_default_group = {
 	.attrs = ufs_sysfs_ufshcd_attrs,
 };
 
+static ssize_t clock_scaling_show(struct device *dev, struct device_attribute *attr,
+				  char *buf)
+{
+	struct ufs_hba *hba = dev_get_drvdata(dev);
+
+	return sysfs_emit(buf, "%d\n", ufshcd_is_clkscaling_supported(hba));
+}
+
+static ssize_t write_booster_show(struct device *dev, struct device_attribute *attr,
+				  char *buf)
+{
+	struct ufs_hba *hba = dev_get_drvdata(dev);
+
+	return sysfs_emit(buf, "%d\n", ufshcd_is_wb_allowed(hba));
+}
+
+static DEVICE_ATTR_RO(clock_scaling);
+static DEVICE_ATTR_RO(write_booster);
+
+/*
+ * See Documentation/ABI/testing/sysfs-driver-ufs for the semantics of this
+ * group.
+ */
+static struct attribute *ufs_sysfs_capabilities_attrs[] = {
+	&dev_attr_clock_scaling.attr,
+	&dev_attr_write_booster.attr,
+	NULL
+};
+
+static const struct attribute_group ufs_sysfs_capabilities_group = {
+	.name = "capabilities",
+	.attrs = ufs_sysfs_capabilities_attrs,
+};
+
 static ssize_t monitor_enable_show(struct device *dev,
 				   struct device_attribute *attr, char *buf)
 {
@@ -1134,6 +1214,7 @@ static const struct attribute_group ufs_sysfs_attributes_group = {
 
 static const struct attribute_group *ufs_sysfs_groups[] = {
 	&ufs_sysfs_default_group,
+	&ufs_sysfs_capabilities_group,
 	&ufs_sysfs_monitor_group,
 	&ufs_sysfs_device_descriptor_group,
 	&ufs_sysfs_interconnect_descriptor_group,
diff --git a/drivers/ufs/core/ufshcd-priv.h b/drivers/ufs/core/ufshcd-priv.h
index 8f67db202d7b..f68ca33f6ac7 100644
--- a/drivers/ufs/core/ufshcd-priv.h
+++ b/drivers/ufs/core/ufshcd-priv.h
@@ -26,6 +26,12 @@ static inline u8 ufshcd_wb_get_query_index(struct ufs_hba *hba)
 	return 0;
 }
 
+static inline bool ufshcd_is_wb_buf_flush_allowed(struct ufs_hba *hba)
+{
+	return ufshcd_is_wb_allowed(hba) &&
+		!(hba->quirks & UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL);
+}
+
 #ifdef CONFIG_SCSI_UFS_HWMON
 void ufs_hwmon_probe(struct ufs_hba *hba, u8 mask);
 void ufs_hwmon_remove(struct ufs_hba *hba);
@@ -36,6 +42,11 @@ static inline void ufs_hwmon_remove(struct ufs_hba *hba) {}
 static inline void ufs_hwmon_notify_event(struct ufs_hba *hba, u8 ee_mask) {}
 #endif
 
+int ufshcd_query_descriptor_retry(struct ufs_hba *hba,
+				  enum query_opcode opcode,
+				  enum desc_idn idn, u8 index,
+				  u8 selector,
+				  u8 *desc_buf, int *buf_len);
 int ufshcd_read_desc_param(struct ufs_hba *hba,
 			   enum desc_idn desc_id,
 			   int desc_index,
diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 9538832b03a0..7256e6c43ca6 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -21,6 +21,7 @@
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/regulator/consumer.h>
+#include <linux/sched/clock.h>
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_dbg.h>
 #include <scsi/scsi_driver.h>
@@ -265,8 +266,8 @@ static int ufshcd_setup_vreg(struct ufs_hba *hba, bool on);
 static inline int ufshcd_config_vreg_hpm(struct ufs_hba *hba,
 					 struct ufs_vreg *vreg);
 static int ufshcd_try_to_abort_task(struct ufs_hba *hba, int tag);
-static void ufshcd_wb_toggle_flush_during_h8(struct ufs_hba *hba, bool set);
-static inline void ufshcd_wb_toggle_flush(struct ufs_hba *hba, bool enable);
+static void ufshcd_wb_toggle_buf_flush_during_h8(struct ufs_hba *hba,
+						 bool enable);
 static void ufshcd_hba_vreg_set_lpm(struct ufs_hba *hba);
 static void ufshcd_hba_vreg_set_hpm(struct ufs_hba *hba);
 
@@ -286,16 +287,17 @@ static inline void ufshcd_disable_irq(struct ufs_hba *hba)
 	}
 }
 
-static inline void ufshcd_wb_config(struct ufs_hba *hba)
+static void ufshcd_configure_wb(struct ufs_hba *hba)
 {
 	if (!ufshcd_is_wb_allowed(hba))
 		return;
 
 	ufshcd_wb_toggle(hba, true);
 
-	ufshcd_wb_toggle_flush_during_h8(hba, true);
-	if (!(hba->quirks & UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL))
-		ufshcd_wb_toggle_flush(hba, true);
+	ufshcd_wb_toggle_buf_flush_during_h8(hba, true);
+
+	if (ufshcd_is_wb_buf_flush_allowed(hba))
+		ufshcd_wb_toggle_buf_flush(hba, true);
 }
 
 static void ufshcd_scsi_unblock_requests(struct ufs_hba *hba)
@@ -457,7 +459,7 @@ static void ufshcd_print_evt(struct ufs_hba *hba, u32 id,
 		if (e->tstamp[p] == 0)
 			continue;
 		dev_err(hba->dev, "%s[%d] = 0x%x at %lld us\n", err_name, p,
-			e->val[p], ktime_to_us(e->tstamp[p]));
+			e->val[p], div_u64(e->tstamp[p], 1000));
 		found = true;
 	}
 
@@ -502,9 +504,9 @@ void ufshcd_print_trs(struct ufs_hba *hba, unsigned long bitmap, bool pr_prdt)
 		lrbp = &hba->lrb[tag];
 
 		dev_err(hba->dev, "UPIU[%d] - issue time %lld us\n",
-				tag, ktime_to_us(lrbp->issue_time_stamp));
+				tag, div_u64(lrbp->issue_time_stamp_local_clock, 1000));
 		dev_err(hba->dev, "UPIU[%d] - complete time %lld us\n",
-				tag, ktime_to_us(lrbp->compl_time_stamp));
+				tag, div_u64(lrbp->compl_time_stamp_local_clock, 1000));
 		dev_err(hba->dev,
 			"UPIU[%d] - Transfer Request Descriptor phys@0x%llx\n",
 			tag, (u64)lrbp->utrd_dma_addr);
@@ -566,10 +568,10 @@ static void ufshcd_print_host_state(struct ufs_hba *hba)
 	dev_err(hba->dev, "Clk gate=%d\n", hba->clk_gating.state);
 	dev_err(hba->dev,
 		"last_hibern8_exit_tstamp at %lld us, hibern8_exit_cnt=%d\n",
-		ktime_to_us(hba->ufs_stats.last_hibern8_exit_tstamp),
+		div_u64(hba->ufs_stats.last_hibern8_exit_tstamp, 1000),
 		hba->ufs_stats.hibern8_exit_cnt);
 	dev_err(hba->dev, "last intr at %lld us, last intr status=0x%x\n",
-		ktime_to_us(hba->ufs_stats.last_intr_ts),
+		div_u64(hba->ufs_stats.last_intr_ts, 1000),
 		hba->ufs_stats.last_intr_status);
 	dev_err(hba->dev, "error handling flags=0x%x, req. abort count=%d\n",
 		hba->eh_flags, hba->req_abort_count);
@@ -1298,9 +1300,11 @@ static int ufshcd_devfreq_scale(struct ufs_hba *hba, bool scale_up)
 	}
 
 	/* Enable Write Booster if we have scaled up else disable it */
-	downgrade_write(&hba->clk_scaling_lock);
-	is_writelock = false;
-	ufshcd_wb_toggle(hba, scale_up);
+	if (ufshcd_enable_wb_if_scaling_up(hba)) {
+		downgrade_write(&hba->clk_scaling_lock);
+		is_writelock = false;
+		ufshcd_wb_toggle(hba, scale_up);
+	}
 
 out_unprepare:
 	ufshcd_clock_scaling_unprepare(hba, is_writelock);
@@ -2140,7 +2144,9 @@ void ufshcd_send_command(struct ufs_hba *hba, unsigned int task_tag)
 	unsigned long flags;
 
 	lrbp->issue_time_stamp = ktime_get();
+	lrbp->issue_time_stamp_local_clock = local_clock();
 	lrbp->compl_time_stamp = ktime_set(0, 0);
+	lrbp->compl_time_stamp_local_clock = 0;
 	ufshcd_add_command_trace(hba, task_tag, UFS_CMD_SEND);
 	ufshcd_clk_scaling_start_busy(hba);
 	if (unlikely(ufshcd_should_inform_monitor(hba, lrbp)))
@@ -4219,7 +4225,7 @@ int ufshcd_uic_hibern8_exit(struct ufs_hba *hba)
 	} else {
 		ufshcd_vops_hibern8_notify(hba, UIC_CMD_DME_HIBER_EXIT,
 								POST_CHANGE);
-		hba->ufs_stats.last_hibern8_exit_tstamp = ktime_get();
+		hba->ufs_stats.last_hibern8_exit_tstamp = local_clock();
 		hba->ufs_stats.hibern8_exit_cnt++;
 	}
 
@@ -4721,7 +4727,7 @@ void ufshcd_update_evt_hist(struct ufs_hba *hba, u32 id, u32 val)
 
 	e = &hba->ufs_stats.event[id];
 	e->val[e->pos] = val;
-	e->tstamp[e->pos] = ktime_get();
+	e->tstamp[e->pos] = local_clock();
 	e->cnt += 1;
 	e->pos = (e->pos + 1) % UFS_EVENT_HIST_LENGTH;
 
@@ -5354,6 +5360,7 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
 	for_each_set_bit(index, &completed_reqs, hba->nutrs) {
 		lrbp = &hba->lrb[index];
 		lrbp->compl_time_stamp = ktime_get();
+		lrbp->compl_time_stamp_local_clock = local_clock();
 		cmd = lrbp->cmd;
 		if (cmd) {
 			if (unlikely(ufshcd_should_inform_monitor(hba, lrbp)))
@@ -5749,60 +5756,60 @@ int ufshcd_wb_toggle(struct ufs_hba *hba, bool enable)
 {
 	int ret;
 
-	if (!ufshcd_is_wb_allowed(hba))
-		return 0;
-
-	if (!(enable ^ hba->dev_info.wb_enabled))
+	if (!ufshcd_is_wb_allowed(hba) ||
+	    hba->dev_info.wb_enabled == enable)
 		return 0;
 
 	ret = __ufshcd_wb_toggle(hba, enable, QUERY_FLAG_IDN_WB_EN);
 	if (ret) {
-		dev_err(hba->dev, "%s Write Booster %s failed %d\n",
-			__func__, enable ? "enable" : "disable", ret);
+		dev_err(hba->dev, "%s: Write Booster %s failed %d\n",
+			__func__, enable ? "enabling" : "disabling", ret);
 		return ret;
 	}
 
 	hba->dev_info.wb_enabled = enable;
-	dev_dbg(hba->dev, "%s Write Booster %s\n",
+	dev_dbg(hba->dev, "%s: Write Booster %s\n",
 			__func__, enable ? "enabled" : "disabled");
 
 	return ret;
 }
 
-static void ufshcd_wb_toggle_flush_during_h8(struct ufs_hba *hba, bool set)
+static void ufshcd_wb_toggle_buf_flush_during_h8(struct ufs_hba *hba,
+						 bool enable)
 {
 	int ret;
 
-	ret = __ufshcd_wb_toggle(hba, set,
+	ret = __ufshcd_wb_toggle(hba, enable,
 			QUERY_FLAG_IDN_WB_BUFF_FLUSH_DURING_HIBERN8);
 	if (ret) {
-		dev_err(hba->dev, "%s: WB-Buf Flush during H8 %s failed: %d\n",
-			__func__, set ? "enable" : "disable", ret);
+		dev_err(hba->dev, "%s: WB-Buf Flush during H8 %s failed %d\n",
+			__func__, enable ? "enabling" : "disabling", ret);
 		return;
 	}
-	dev_dbg(hba->dev, "%s WB-Buf Flush during H8 %s\n",
-			__func__, set ? "enabled" : "disabled");
+	dev_dbg(hba->dev, "%s: WB-Buf Flush during H8 %s\n",
+			__func__, enable ? "enabled" : "disabled");
 }
 
-static inline void ufshcd_wb_toggle_flush(struct ufs_hba *hba, bool enable)
+int ufshcd_wb_toggle_buf_flush(struct ufs_hba *hba, bool enable)
 {
 	int ret;
 
 	if (!ufshcd_is_wb_allowed(hba) ||
 	    hba->dev_info.wb_buf_flush_enabled == enable)
-		return;
+		return 0;
 
 	ret = __ufshcd_wb_toggle(hba, enable, QUERY_FLAG_IDN_WB_BUFF_FLUSH_EN);
 	if (ret) {
-		dev_err(hba->dev, "%s WB-Buf Flush %s failed %d\n", __func__,
-			enable ? "enable" : "disable", ret);
-		return;
+		dev_err(hba->dev, "%s: WB-Buf Flush %s failed %d\n",
+			__func__, enable ? "enabling" : "disabling", ret);
+		return ret;
 	}
 
 	hba->dev_info.wb_buf_flush_enabled = enable;
-
-	dev_dbg(hba->dev, "%s WB-Buf Flush %s\n",
+	dev_dbg(hba->dev, "%s: WB-Buf Flush %s\n",
 			__func__, enable ? "enabled" : "disabled");
+
+	return ret;
 }
 
 static bool ufshcd_wb_presrv_usrspc_keep_vcc_on(struct ufs_hba *hba,
@@ -5817,7 +5824,7 @@ static bool ufshcd_wb_presrv_usrspc_keep_vcc_on(struct ufs_hba *hba,
 					      QUERY_ATTR_IDN_CURR_WB_BUFF_SIZE,
 					      index, 0, &cur_buf);
 	if (ret) {
-		dev_err(hba->dev, "%s dCurWriteBoosterBufferSize read failed %d\n",
+		dev_err(hba->dev, "%s: dCurWriteBoosterBufferSize read failed %d\n",
 			__func__, ret);
 		return false;
 	}
@@ -5833,10 +5840,10 @@ static bool ufshcd_wb_presrv_usrspc_keep_vcc_on(struct ufs_hba *hba,
 
 static void ufshcd_wb_force_disable(struct ufs_hba *hba)
 {
-	if (!(hba->quirks & UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL))
-		ufshcd_wb_toggle_flush(hba, false);
+	if (ufshcd_is_wb_buf_flush_allowed(hba))
+		ufshcd_wb_toggle_buf_flush(hba, false);
 
-	ufshcd_wb_toggle_flush_during_h8(hba, false);
+	ufshcd_wb_toggle_buf_flush_during_h8(hba, false);
 	ufshcd_wb_toggle(hba, false);
 	hba->caps &= ~UFSHCD_CAP_WB_EN;
 
@@ -5902,7 +5909,7 @@ static bool ufshcd_wb_need_flush(struct ufs_hba *hba)
 				      QUERY_ATTR_IDN_AVAIL_WB_BUFF_SIZE,
 				      index, 0, &avail_buf);
 	if (ret) {
-		dev_warn(hba->dev, "%s dAvailableWriteBoosterBufferSize read failed %d\n",
+		dev_warn(hba->dev, "%s: dAvailableWriteBoosterBufferSize read failed %d\n",
 			 __func__, ret);
 		return false;
 	}
@@ -6642,7 +6649,7 @@ static irqreturn_t ufshcd_intr(int irq, void *__hba)
 
 	intr_status = ufshcd_readl(hba, REG_INTERRUPT_STATUS);
 	hba->ufs_stats.last_intr_status = intr_status;
-	hba->ufs_stats.last_intr_ts = ktime_get();
+	hba->ufs_stats.last_intr_ts = local_clock();
 
 	/*
 	 * There could be max of hba->nutrs reqs in flight and in worst case
@@ -8233,7 +8240,9 @@ static int ufshcd_probe_hba(struct ufs_hba *hba, bool init_dev_params)
 	 */
 	ufshcd_set_active_icc_lvl(hba);
 
-	ufshcd_wb_config(hba);
+	/* Enable UFS Write Booster if supported */
+	ufshcd_configure_wb(hba);
+
 	if (hba->ee_usr_mask)
 		ufshcd_write_ee_control(hba);
 	/* Enable Auto-Hibernate if configured */
diff --git a/drivers/ufs/host/ufs-mediatek-trace.h b/drivers/ufs/host/ufs-mediatek-trace.h
index 7e010848dc99..b5f2ec314074 100644
--- a/drivers/ufs/host/ufs-mediatek-trace.h
+++ b/drivers/ufs/host/ufs-mediatek-trace.h
@@ -24,9 +24,32 @@ TRACE_EVENT(ufs_mtk_event,
 		__entry->data = data;
 	),
 
-	TP_printk("ufs:event=%u data=%u",
+	TP_printk("ufs: event=%u data=%u",
 		  __entry->type, __entry->data)
-	);
+);
+
+TRACE_EVENT(ufs_mtk_clk_scale,
+	TP_PROTO(const char *name, bool scale_up, unsigned long clk_rate),
+	TP_ARGS(name, scale_up, clk_rate),
+
+	TP_STRUCT__entry(
+		__field(const char*, name)
+		__field(bool, scale_up)
+		__field(unsigned long, clk_rate)
+	),
+
+	TP_fast_assign(
+		__entry->name = name;
+		__entry->scale_up = scale_up;
+		__entry->clk_rate = clk_rate;
+	),
+
+	TP_printk("ufs: clk (%s) scaled %s @ %lu",
+		  __entry->name,
+		  __entry->scale_up ? "up" : "down",
+		  __entry->clk_rate)
+);
+
 #endif
 
 #undef TRACE_INCLUDE_PATH
diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c
index c958279bdd8f..7309f3f87eac 100644
--- a/drivers/ufs/host/ufs-mediatek.c
+++ b/drivers/ufs/host/ufs-mediatek.c
@@ -19,7 +19,6 @@
 #include <linux/pm_qos.h>
 #include <linux/regulator/consumer.h>
 #include <linux/reset.h>
-#include <linux/sched/clock.h>
 #include <linux/soc/mediatek/mtk_sip_svc.h>
 
 #include <ufs/ufshcd.h>
@@ -47,6 +46,44 @@ static const struct of_device_id ufs_mtk_of_match[] = {
 	{},
 };
 
+/*
+ * Details of UIC Errors
+ */
+static const char *const ufs_uic_err_str[] = {
+	"PHY Adapter Layer",
+	"Data Link Layer",
+	"Network Link Layer",
+	"Transport Link Layer",
+	"DME"
+};
+
+static const char *const ufs_uic_pa_err_str[] = {
+	"PHY error on Lane 0",
+	"PHY error on Lane 1",
+	"PHY error on Lane 2",
+	"PHY error on Lane 3",
+	"Generic PHY Adapter Error. This should be the LINERESET indication"
+};
+
+static const char *const ufs_uic_dl_err_str[] = {
+	"NAC_RECEIVED",
+	"TCx_REPLAY_TIMER_EXPIRED",
+	"AFCx_REQUEST_TIMER_EXPIRED",
+	"FCx_PROTECTION_TIMER_EXPIRED",
+	"CRC_ERROR",
+	"RX_BUFFER_OVERFLOW",
+	"MAX_FRAME_LENGTH_EXCEEDED",
+	"WRONG_SEQUENCE_NUMBER",
+	"AFC_FRAME_SYNTAX_ERROR",
+	"NAC_FRAME_SYNTAX_ERROR",
+	"EOF_SYNTAX_ERROR",
+	"FRAME_SYNTAX_ERROR",
+	"BAD_CTRL_SYMBOL_TYPE",
+	"PA_INIT_ERROR",
+	"PA_ERROR_IND_RECEIVED",
+	"PA_INIT"
+};
+
 static bool ufs_mtk_is_boost_crypt_enabled(struct ufs_hba *hba)
 {
 	struct ufs_mtk_host *host = ufshcd_get_variant(hba);
@@ -598,6 +635,12 @@ static void ufs_mtk_boost_pm_qos(struct ufs_hba *hba, bool boost)
 				       boost ? 0 : PM_QOS_DEFAULT_VALUE);
 }
 
+static void ufs_mtk_scale_perf(struct ufs_hba *hba, bool scale_up)
+{
+	ufs_mtk_boost_crypt(hba, scale_up);
+	ufs_mtk_boost_pm_qos(hba, scale_up);
+}
+
 static void ufs_mtk_pwr_ctrl(struct ufs_hba *hba, bool on)
 {
 	struct ufs_mtk_host *host = ufshcd_get_variant(hba);
@@ -605,11 +648,11 @@ static void ufs_mtk_pwr_ctrl(struct ufs_hba *hba, bool on)
 	if (on) {
 		phy_power_on(host->mphy);
 		ufs_mtk_setup_ref_clk(hba, on);
-		ufs_mtk_boost_crypt(hba, on);
-		ufs_mtk_boost_pm_qos(hba, on);
+		if (!ufshcd_is_clkscaling_supported(hba))
+			ufs_mtk_scale_perf(hba, on);
 	} else {
-		ufs_mtk_boost_pm_qos(hba, on);
-		ufs_mtk_boost_crypt(hba, on);
+		if (!ufshcd_is_clkscaling_supported(hba))
+			ufs_mtk_scale_perf(hba, on);
 		ufs_mtk_setup_ref_clk(hba, on);
 		phy_power_off(host->mphy);
 	}
@@ -695,6 +738,46 @@ static u32 ufs_mtk_get_ufs_hci_version(struct ufs_hba *hba)
 	return hba->ufs_version;
 }
 
+/**
+ * ufs_mtk_init_clocks - Init mtk driver private clocks
+ *
+ * @hba: per adapter instance
+ */
+static void ufs_mtk_init_clocks(struct ufs_hba *hba)
+{
+	struct ufs_mtk_host *host = ufshcd_get_variant(hba);
+	struct list_head *head = &hba->clk_list_head;
+	struct ufs_mtk_clk *mclk = &host->mclk;
+	struct ufs_clk_info *clki, *clki_tmp;
+
+	/*
+	 * Find private clocks and store them in struct ufs_mtk_clk.
+	 * Remove "ufs_sel_min_src" and "ufs_sel_min_src" from list to avoid
+	 * being switched on/off in clock gating.
+	 */
+	list_for_each_entry_safe(clki, clki_tmp, head, list) {
+		if (!strcmp(clki->name, "ufs_sel")) {
+			host->mclk.ufs_sel_clki = clki;
+		} else if (!strcmp(clki->name, "ufs_sel_max_src")) {
+			host->mclk.ufs_sel_max_clki = clki;
+			clk_disable_unprepare(clki->clk);
+			list_del(&clki->list);
+		} else if (!strcmp(clki->name, "ufs_sel_min_src")) {
+			host->mclk.ufs_sel_min_clki = clki;
+			clk_disable_unprepare(clki->clk);
+			list_del(&clki->list);
+		}
+	}
+
+	if (!mclk->ufs_sel_clki || !mclk->ufs_sel_max_clki ||
+	    !mclk->ufs_sel_min_clki) {
+		hba->caps &= ~UFSHCD_CAP_CLK_SCALING;
+		dev_info(hba->dev,
+			 "%s: Clk-scaling not ready. Feature disabled.",
+			 __func__);
+	}
+}
+
 #define MAX_VCC_NAME 30
 static int ufs_mtk_vreg_fix_vcc(struct ufs_hba *hba)
 {
@@ -815,12 +898,18 @@ static int ufs_mtk_init(struct ufs_hba *hba)
 
 	/* Enable WriteBooster */
 	hba->caps |= UFSHCD_CAP_WB_EN;
+
+	/* Enable clk scaling*/
+	hba->caps |= UFSHCD_CAP_CLK_SCALING;
+
 	hba->quirks |= UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL;
 	hba->vps->wb_flush_threshold = UFS_WB_BUF_REMAIN_PERCENT(80);
 
 	if (host->caps & UFS_MTK_CAP_DISABLE_AH8)
 		hba->caps |= UFSHCD_CAP_HIBERN8_WITH_CLK_GATING;
 
+	ufs_mtk_init_clocks(hba);
+
 	/*
 	 * ufshcd_vops_init() is invoked after
 	 * ufshcd_setup_clock(true) in ufshcd_hba_init() thus
@@ -833,6 +922,10 @@ static int ufs_mtk_init(struct ufs_hba *hba)
 
 	host->ip_ver = ufshcd_readl(hba, REG_UFS_MTK_IP_VER);
 
+	/* Initialize pm-qos request */
+	cpu_latency_qos_add_request(&host->pm_qos_req, PM_QOS_DEFAULT_VALUE);
+	host->pm_qos_init = true;
+
 	goto out;
 
 out_variant_clear:
@@ -1247,13 +1340,16 @@ fail:
 
 static void ufs_mtk_dbg_register_dump(struct ufs_hba *hba)
 {
-	ufshcd_dump_regs(hba, REG_UFS_REFCLK_CTRL, 0x4, "Ref-Clk Ctrl ");
+	/* Dump ufshci register 0x140 ~ 0x14C */
+	ufshcd_dump_regs(hba, REG_UFS_XOUFS_CTRL, 0x10,
+			 "XOUFS Ctrl (0x140): ");
 
 	ufshcd_dump_regs(hba, REG_UFS_EXTREG, 0x4, "Ext Reg ");
 
+	/* Dump ufshci register 0x2200 ~ 0x22AC */
 	ufshcd_dump_regs(hba, REG_UFS_MPHYCTRL,
 			 REG_UFS_REJECT_MON - REG_UFS_MPHYCTRL + 4,
-			 "MPHY Ctrl ");
+			 "MPHY Ctrl (0x2200): ");
 
 	/* Direct debugging information to REG_MTK_PROBE */
 	ufs_mtk_dbg_sel(hba);
@@ -1310,8 +1406,101 @@ static void ufs_mtk_event_notify(struct ufs_hba *hba,
 				 enum ufs_event_type evt, void *data)
 {
 	unsigned int val = *(u32 *)data;
+	unsigned long reg;
+	u8 bit;
 
 	trace_ufs_mtk_event(evt, val);
+
+	/* Print details of UIC Errors */
+	if (evt <= UFS_EVT_DME_ERR) {
+		dev_info(hba->dev,
+			 "Host UIC Error Code (%s): %08x\n",
+			 ufs_uic_err_str[evt], val);
+		reg = val;
+	}
+
+	if (evt == UFS_EVT_PA_ERR) {
+		for_each_set_bit(bit, &reg, ARRAY_SIZE(ufs_uic_pa_err_str))
+			dev_info(hba->dev, "%s\n", ufs_uic_pa_err_str[bit]);
+	}
+
+	if (evt == UFS_EVT_DL_ERR) {
+		for_each_set_bit(bit, &reg, ARRAY_SIZE(ufs_uic_dl_err_str))
+			dev_info(hba->dev, "%s\n", ufs_uic_dl_err_str[bit]);
+	}
+}
+
+static void ufs_mtk_config_scaling_param(struct ufs_hba *hba,
+				struct devfreq_dev_profile *profile,
+				struct devfreq_simple_ondemand_data *data)
+{
+	/* Customize min gear in clk scaling */
+	hba->clk_scaling.min_gear = UFS_HS_G4;
+
+	hba->vps->devfreq_profile.polling_ms = 200;
+	hba->vps->ondemand_data.upthreshold = 50;
+	hba->vps->ondemand_data.downdifferential = 20;
+}
+
+/**
+ * ufs_mtk_clk_scale - Internal clk scaling operation
+ *
+ * MTK platform supports clk scaling by switching parent of ufs_sel(mux).
+ * The ufs_sel downstream to ufs_ck which feeds directly to UFS hardware.
+ * Max and min clocks rate of ufs_sel defined in dts should match rate of
+ * "ufs_sel_max_src" and "ufs_sel_min_src" respectively.
+ * This prevent changing rate of pll clock that is shared between modules.
+ *
+ * @hba: per adapter instance
+ * @scale_up: True for scaling up and false for scaling down
+ */
+static void ufs_mtk_clk_scale(struct ufs_hba *hba, bool scale_up)
+{
+	struct ufs_mtk_host *host = ufshcd_get_variant(hba);
+	struct ufs_mtk_clk *mclk = &host->mclk;
+	struct ufs_clk_info *clki = mclk->ufs_sel_clki;
+	int ret = 0;
+
+	ret = clk_prepare_enable(clki->clk);
+	if (ret) {
+		dev_info(hba->dev,
+			 "clk_prepare_enable() fail, ret: %d\n", ret);
+		return;
+	}
+
+	if (scale_up) {
+		ret = clk_set_parent(clki->clk, mclk->ufs_sel_max_clki->clk);
+		clki->curr_freq = clki->max_freq;
+	} else {
+		ret = clk_set_parent(clki->clk, mclk->ufs_sel_min_clki->clk);
+		clki->curr_freq = clki->min_freq;
+	}
+
+	if (ret) {
+		dev_info(hba->dev,
+			 "Failed to set ufs_sel_clki, ret: %d\n", ret);
+	}
+
+	clk_disable_unprepare(clki->clk);
+
+	trace_ufs_mtk_clk_scale(clki->name, scale_up, clk_get_rate(clki->clk));
+}
+
+static int ufs_mtk_clk_scale_notify(struct ufs_hba *hba, bool scale_up,
+				    enum ufs_notify_change_status status)
+{
+	if (!ufshcd_is_clkscaling_supported(hba))
+		return 0;
+
+	if (status == PRE_CHANGE) {
+		/* Switch parent before clk_set_rate() */
+		ufs_mtk_clk_scale(hba, scale_up);
+	} else {
+		/* Request interrupt latency QoS accordingly */
+		ufs_mtk_scale_perf(hba, scale_up);
+	}
+
+	return 0;
 }
 
 /*
@@ -1335,6 +1524,8 @@ static const struct ufs_hba_variant_ops ufs_hba_mtk_vops = {
 	.dbg_register_dump   = ufs_mtk_dbg_register_dump,
 	.device_reset        = ufs_mtk_device_reset,
 	.event_notify        = ufs_mtk_event_notify,
+	.config_scaling_param = ufs_mtk_config_scaling_param,
+	.clk_scale_notify    = ufs_mtk_clk_scale_notify,
 };
 
 /**
diff --git a/drivers/ufs/host/ufs-mediatek.h b/drivers/ufs/host/ufs-mediatek.h
index aa26d415527b..2fc6d7b87694 100644
--- a/drivers/ufs/host/ufs-mediatek.h
+++ b/drivers/ufs/host/ufs-mediatek.h
@@ -124,6 +124,12 @@ struct ufs_mtk_crypt_cfg {
 	int vcore_volt;
 };
 
+struct ufs_mtk_clk {
+	struct ufs_clk_info *ufs_sel_clki; /* Mux */
+	struct ufs_clk_info *ufs_sel_max_clki; /* Max src */
+	struct ufs_clk_info *ufs_sel_min_clki; /* Min src */
+};
+
 struct ufs_mtk_hw_ver {
 	u8 step;
 	u8 minor;
@@ -139,6 +145,7 @@ struct ufs_mtk_host {
 	struct reset_control *crypto_reset;
 	struct ufs_hba *hba;
 	struct ufs_mtk_crypt_cfg *crypt;
+	struct ufs_mtk_clk mclk;
 	struct ufs_mtk_hw_ver hw_ver;
 	enum ufs_mtk_host_caps caps;
 	bool mphy_powered_on;
diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c
index 473fad83701e..8ad1415e10b6 100644
--- a/drivers/ufs/host/ufs-qcom.c
+++ b/drivers/ufs/host/ufs-qcom.c
@@ -846,7 +846,7 @@ static void ufs_qcom_set_caps(struct ufs_hba *hba)
 	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
 
 	hba->caps |= UFSHCD_CAP_CLK_GATING | UFSHCD_CAP_HIBERN8_WITH_CLK_GATING;
-	hba->caps |= UFSHCD_CAP_CLK_SCALING;
+	hba->caps |= UFSHCD_CAP_CLK_SCALING | UFSHCD_CAP_WB_WITH_CLK_SCALING;
 	hba->caps |= UFSHCD_CAP_AUTO_BKOPS_SUSPEND;
 	hba->caps |= UFSHCD_CAP_WB_EN;
 	hba->caps |= UFSHCD_CAP_CRYPTO;
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index 84dc270f6f73..de3836412bf3 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -283,7 +283,7 @@ static bool uas_evaluate_response_iu(struct response_iu *riu, struct scsi_cmnd *
 		set_host_byte(cmnd, DID_OK);
 		break;
 	case RC_TMF_NOT_SUPPORTED:
-		set_host_byte(cmnd, DID_TARGET_FAILURE);
+		set_host_byte(cmnd, DID_BAD_TARGET);
 		break;
 	default:
 		uas_log_cmd_state(cmnd, "response iu", response_code);
diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c
index d3dcda344989..6106ed93817d 100644
--- a/drivers/xen/xen-scsiback.c
+++ b/drivers/xen/xen-scsiback.c
@@ -333,18 +333,6 @@ static int32_t scsiback_result(int32_t result)
 	case DID_TRANSPORT_FAILFAST:
 		host_status = XEN_VSCSIIF_RSLT_HOST_TRANSPORT_FAILFAST;
 		break;
-	case DID_TARGET_FAILURE:
-		host_status = XEN_VSCSIIF_RSLT_HOST_TARGET_FAILURE;
-		break;
-	case DID_NEXUS_FAILURE:
-		host_status = XEN_VSCSIIF_RSLT_HOST_NEXUS_FAILURE;
-		break;
-	case DID_ALLOC_FAILURE:
-		host_status = XEN_VSCSIIF_RSLT_HOST_ALLOC_FAILURE;
-		break;
-	case DID_MEDIUM_ERROR:
-		host_status = XEN_VSCSIIF_RSLT_HOST_MEDIUM_ERROR;
-		break;
 	case DID_TRANSPORT_MARGINAL:
 		host_status = XEN_VSCSIIF_RSLT_HOST_TRANSPORT_MARGINAL;
 		break;
diff --git a/include/linux/trace.h b/include/linux/trace.h
index bf169612ffe1..b5e16e438448 100644
--- a/include/linux/trace.h
+++ b/include/linux/trace.h
@@ -2,8 +2,6 @@
 #ifndef _LINUX_TRACE_H
 #define _LINUX_TRACE_H
 
-#ifdef CONFIG_TRACING
-
 #define TRACE_EXPORT_FUNCTION	BIT(0)
 #define TRACE_EXPORT_EVENT	BIT(1)
 #define TRACE_EXPORT_MARKER	BIT(2)
@@ -28,6 +26,8 @@ struct trace_export {
 	int flags;
 };
 
+#ifdef CONFIG_TRACING
+
 int register_ftrace_export(struct trace_export *export);
 int unregister_ftrace_export(struct trace_export *export);
 
@@ -48,6 +48,38 @@ void osnoise_arch_unregister(void);
 void osnoise_trace_irq_entry(int id);
 void osnoise_trace_irq_exit(int id, const char *desc);
 
+#else /* CONFIG_TRACING */
+static inline int register_ftrace_export(struct trace_export *export)
+{
+	return -EINVAL;
+}
+static inline int unregister_ftrace_export(struct trace_export *export)
+{
+	return 0;
+}
+static inline void trace_printk_init_buffers(void)
+{
+}
+static inline int trace_array_printk(struct trace_array *tr, unsigned long ip,
+				     const char *fmt, ...)
+{
+	return 0;
+}
+static inline int trace_array_init_printk(struct trace_array *tr)
+{
+	return -EINVAL;
+}
+static inline void trace_array_put(struct trace_array *tr)
+{
+}
+static inline struct trace_array *trace_array_get_by_name(const char *name)
+{
+	return NULL;
+}
+static inline int trace_array_destroy(struct trace_array *tr)
+{
+	return 0;
+}
 #endif	/* CONFIG_TRACING */
 
 #endif	/* _LINUX_TRACE_H */
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index bac55decf900..7d3622db38ed 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -201,7 +201,7 @@ static inline unsigned int scsi_get_resid(struct scsi_cmnd *cmd)
 	for_each_sg(scsi_sglist(cmd), sg, nseg, __i)
 
 static inline int scsi_sg_copy_from_buffer(struct scsi_cmnd *cmd,
-					   void *buf, int buflen)
+					   const void *buf, int buflen)
 {
 	return sg_copy_from_buffer(scsi_sglist(cmd), scsi_sg_count(cmd),
 				   buf, buflen);
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 2493bd65351a..c36656d8ac6c 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -231,6 +231,7 @@ struct scsi_device {
 	atomic_t iorequest_cnt;
 	atomic_t iodone_cnt;
 	atomic_t ioerr_cnt;
+	atomic_t iotmo_cnt;
 
 	struct device		sdev_gendev,
 				sdev_dev;
diff --git a/include/scsi/scsi_status.h b/include/scsi/scsi_status.h
index 31d30cee1869..9cb85262de64 100644
--- a/include/scsi/scsi_status.h
+++ b/include/scsi/scsi_status.h
@@ -62,12 +62,12 @@ enum scsi_host_status {
 					 * recover the link. Transport class will
 					 * retry or fail IO */
 	DID_TRANSPORT_FAILFAST = 0x0f, /* Transport class fastfailed the io */
-	DID_TARGET_FAILURE = 0x10, /* Permanent target failure, do not retry on
-				    * other paths */
-	DID_NEXUS_FAILURE = 0x11,  /* Permanent nexus failure, retry on other
-				    * paths might yield different results */
-	DID_ALLOC_FAILURE = 0x12,  /* Space allocation on the device failed */
-	DID_MEDIUM_ERROR = 0x13,  /* Medium error */
+	/*
+	 * We used to have DID_TARGET_FAILURE, DID_NEXUS_FAILURE,
+	 * DID_ALLOC_FAILURE and DID_MEDIUM_ERROR at 0x10 - 0x13. For compat
+	 * with userspace apps that parse the host byte for SG IO, we leave
+	 * that block of codes unused and start at 0x14 below.
+	 */
 	DID_TRANSPORT_MARGINAL = 0x14, /* Transport marginal errors */
 };
 
diff --git a/include/uapi/scsi/scsi_netlink_fc.h b/include/uapi/scsi/scsi_netlink_fc.h
index 7535253f1a96..b46e9cbeb001 100644
--- a/include/uapi/scsi/scsi_netlink_fc.h
+++ b/include/uapi/scsi/scsi_netlink_fc.h
@@ -35,7 +35,7 @@
  * FC Transport Broadcast Event Message :
  *   FC_NL_ASYNC_EVENT
  *
- * Note: if Vendor Unique message, &event_data will be  start of
+ * Note: if Vendor Unique message, event_data_flex will be start of
  * 	 vendor unique payload, and the length of the payload is
  *       per event_datalen
  *
@@ -50,7 +50,10 @@ struct fc_nl_event {
 	__u16 event_datalen;
 	__u32 event_num;
 	__u32 event_code;
-	__u32 event_data;
+	union {
+		__u32 event_data;
+		__DECLARE_FLEX_ARRAY(__u8, event_data_flex);
+	};
 } __attribute__((aligned(sizeof(__u64))));
 
 
diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h
index 7fe1a926cd99..9f28349ebcff 100644
--- a/include/ufs/ufshcd.h
+++ b/include/ufs/ufshcd.h
@@ -160,8 +160,10 @@ struct ufs_pm_lvl_states {
  * @task_tag: Task tag of the command
  * @lun: LUN of the command
  * @intr_cmd: Interrupt command (doesn't participate in interrupt aggregation)
- * @issue_time_stamp: time stamp for debug purposes
- * @compl_time_stamp: time stamp for statistics
+ * @issue_time_stamp: time stamp for debug purposes (CLOCK_MONOTONIC)
+ * @issue_time_stamp_local_clock: time stamp for debug purposes (local_clock)
+ * @compl_time_stamp: time stamp for statistics (CLOCK_MONOTONIC)
+ * @compl_time_stamp_local_clock: time stamp for debug purposes (local_clock)
  * @crypto_key_slot: the key slot to use for inline crypto (-1 if none)
  * @data_unit_num: the data unit number for the first block for inline crypto
  * @req_abort_skip: skip request abort task flag
@@ -185,7 +187,9 @@ struct ufshcd_lrb {
 	u8 lun; /* UPIU LUN id field is only 8-bit wide */
 	bool intr_cmd;
 	ktime_t issue_time_stamp;
+	u64 issue_time_stamp_local_clock;
 	ktime_t compl_time_stamp;
+	u64 compl_time_stamp_local_clock;
 #ifdef CONFIG_SCSI_UFS_CRYPTO
 	int crypto_key_slot;
 	u64 data_unit_num;
@@ -430,7 +434,7 @@ struct ufs_clk_scaling {
 struct ufs_event_hist {
 	int pos;
 	u32 val[UFS_EVENT_HIST_LENGTH];
-	ktime_t tstamp[UFS_EVENT_HIST_LENGTH];
+	u64 tstamp[UFS_EVENT_HIST_LENGTH];
 	unsigned long long cnt;
 };
 
@@ -446,10 +450,10 @@ struct ufs_event_hist {
  */
 struct ufs_stats {
 	u32 last_intr_status;
-	ktime_t last_intr_ts;
+	u64 last_intr_ts;
 
 	u32 hibern8_exit_cnt;
-	ktime_t last_hibern8_exit_tstamp;
+	u64 last_hibern8_exit_tstamp;
 	struct ufs_event_hist event[UFS_EVT_CNT];
 };
 
@@ -660,6 +664,12 @@ enum ufshcd_caps {
 	 * notification if it is supported by the UFS device.
 	 */
 	UFSHCD_CAP_TEMP_NOTIF				= 1 << 11,
+
+	/*
+	 * Enable WriteBooster when scaling up the clock and disable
+	 * WriteBooster when scaling the clock down.
+	 */
+	UFSHCD_CAP_WB_WITH_CLK_SCALING			= 1 << 12,
 };
 
 struct ufs_hba_variant_params {
@@ -1017,6 +1027,11 @@ static inline bool ufshcd_is_wb_allowed(struct ufs_hba *hba)
 	return hba->caps & UFSHCD_CAP_WB_EN;
 }
 
+static inline bool ufshcd_enable_wb_if_scaling_up(struct ufs_hba *hba)
+{
+	return hba->caps & UFSHCD_CAP_WB_WITH_CLK_SCALING;
+}
+
 #define ufshcd_writel(hba, val, reg)	\
 	writel((val), (hba)->mmio_base + (reg))
 #define ufshcd_readl(hba, reg)	\
@@ -1160,26 +1175,6 @@ static inline int ufshcd_disable_host_tx_lcc(struct ufs_hba *hba)
 	return ufshcd_dme_set(hba, UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE), 0);
 }
 
-/* Expose Query-Request API */
-int ufshcd_query_descriptor_retry(struct ufs_hba *hba,
-				  enum query_opcode opcode,
-				  enum desc_idn idn, u8 index,
-				  u8 selector,
-				  u8 *desc_buf, int *buf_len);
-int ufshcd_read_desc_param(struct ufs_hba *hba,
-			   enum desc_idn desc_id,
-			   int desc_index,
-			   u8 param_offset,
-			   u8 *param_read_buf,
-			   u8 param_size);
-int ufshcd_query_attr_retry(struct ufs_hba *hba, enum query_opcode opcode,
-			    enum attr_idn idn, u8 index, u8 selector,
-			    u32 *attr_val);
-int ufshcd_query_attr(struct ufs_hba *hba, enum query_opcode opcode,
-		      enum attr_idn idn, u8 index, u8 selector, u32 *attr_val);
-int ufshcd_query_flag(struct ufs_hba *hba, enum query_opcode opcode,
-	enum flag_idn idn, u8 index, bool *flag_res);
-
 void ufshcd_auto_hibern8_enable(struct ufs_hba *hba);
 void ufshcd_auto_hibern8_update(struct ufs_hba *hba, u32 ahit);
 void ufshcd_fixup_dev_quirks(struct ufs_hba *hba,
@@ -1211,6 +1206,7 @@ int ufshcd_exec_raw_upiu_cmd(struct ufs_hba *hba,
 			     enum query_opcode desc_op);
 
 int ufshcd_wb_toggle(struct ufs_hba *hba, bool enable);
+int ufshcd_wb_toggle_buf_flush(struct ufs_hba *hba, bool enable);
 int ufshcd_suspend_prepare(struct device *dev);
 int __ufshcd_suspend_prepare(struct device *dev, bool rpm_ok_for_spm);
 void ufshcd_resume_complete(struct device *dev);
author	Linus Torvalds <torvalds@linux-foundation.org>	2022-10-07 12:33:18 -0700
committer	Linus Torvalds <torvalds@linux-foundation.org>	2022-10-07 12:33:18 -0700
commit	62e6e5940c0c09433efa52d0fa9a11623a4704b2 (patch)
tree	17e281d817f9684542d69f4098f7d2b24f6c7398
parent	e08466a7c00733a501d3c5328d29ec974478d717 (diff)
parent	57569c37f0add1b6489e1a1563c71519daf732cf (diff)
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