scsi: mpt3sas: Add-Task-management-debug-info-for-NVMe-drives.

Added debug information for NVMe/PCIe drives in target rest path
Signed-off-by: NChaitra P B <chaitra.basappa@broadcom.com>
Signed-off-by: NSuganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/mpt3sas/mpt3sas_scsih.c

@@ -2928,6 +2928,7 @@ _scsih_tm_display_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd)
 	struct scsi_target *starget = scmd->device->sdev_target;
 	struct MPT3SAS_TARGET *priv_target = starget->hostdata;
 	struct _sas_device *sas_device = NULL;
+	struct _pcie_device *pcie_device = NULL;
 	unsigned long flags;
 	char *device_str = NULL;
 
@@ -2944,6 +2945,31 @@ _scsih_tm_display_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd)
 			"%s handle(0x%04x), %s wwid(0x%016llx)\n",
 			device_str, priv_target->handle,
 		    device_str, (unsigned long long)priv_target->sas_address);
+
+	} else if (priv_target->flags & MPT_TARGET_FLAGS_PCIE_DEVICE) {
+		spin_lock_irqsave(&ioc->pcie_device_lock, flags);
+		pcie_device = __mpt3sas_get_pdev_from_target(ioc, priv_target);
+		if (pcie_device) {
+			starget_printk(KERN_INFO, starget,
+				"handle(0x%04x), wwid(0x%016llx), port(%d)\n",
+				pcie_device->handle,
+				(unsigned long long)pcie_device->wwid,
+				pcie_device->port_num);
+			if (pcie_device->enclosure_handle != 0)
+				starget_printk(KERN_INFO, starget,
+					"enclosure logical id(0x%016llx), slot(%d)\n",
+					(unsigned long long)
+					pcie_device->enclosure_logical_id,
+					pcie_device->slot);
+			if (pcie_device->connector_name[0] != '\0')
+				starget_printk(KERN_INFO, starget,
+					"enclosure level(0x%04x), connector name( %s)\n",
+					pcie_device->enclosure_level,
+					pcie_device->connector_name);
+			pcie_device_put(pcie_device);
+		}
+		spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
+
 	} else {
 		spin_lock_irqsave(&ioc->sas_device_lock, flags);
 		sas_device = __mpt3sas_get_sdev_from_target(ioc, priv_target);
@@ -3679,18 +3705,14 @@ _scsih_tm_tr_send(struct MPT3SAS_ADAPTER *ioc, u16 handle)
 	Mpi2SCSITaskManagementRequest_t *mpi_request;
 	u16 smid;
 	struct _sas_device *sas_device = NULL;
+	struct _pcie_device *pcie_device = NULL;
 	struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
 	u64 sas_address = 0;
 	unsigned long flags;
 	struct _tr_list *delayed_tr;
 	u32 ioc_state;
 
-	if (ioc->remove_host) {
-		dewtprintk(ioc, pr_info(MPT3SAS_FMT
-			"%s: host has been removed: handle(0x%04x)\n",
-			__func__, ioc->name, handle));
-		return;
-	} else if (ioc->pci_error_recovery) {
+	if (ioc->pci_error_recovery) {
 		dewtprintk(ioc, pr_info(MPT3SAS_FMT
 			"%s: host in pci error recovery: handle(0x%04x)\n",
 			__func__, ioc->name,
@@ -3721,14 +3743,52 @@ _scsih_tm_tr_send(struct MPT3SAS_ADAPTER *ioc, u16 handle)
 		sas_address = sas_device->sas_address;
 	}
 	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
-
+	if (!sas_device) {
+		spin_lock_irqsave(&ioc->pcie_device_lock, flags);
+		pcie_device = __mpt3sas_get_pdev_by_handle(ioc, handle);
+		if (pcie_device && pcie_device->starget &&
+			pcie_device->starget->hostdata) {
+			sas_target_priv_data = pcie_device->starget->hostdata;
+			sas_target_priv_data->deleted = 1;
+			sas_address = pcie_device->wwid;
+		}
+		spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
+	}
 	if (sas_target_priv_data) {
 		dewtprintk(ioc, pr_info(MPT3SAS_FMT
 			"setting delete flag: handle(0x%04x), sas_addr(0x%016llx)\n",
 			ioc->name, handle,
 		    (unsigned long long)sas_address));
-		dewtprintk(ioc, _scsih_display_enclosure_chassis_info(ioc,
-		    sas_device, NULL, NULL));
+		if (sas_device) {
+			if (sas_device->enclosure_handle != 0)
+				dewtprintk(ioc, pr_info(MPT3SAS_FMT
+				    "setting delete flag:enclosure logical "
+				    "id(0x%016llx), slot(%d)\n", ioc->name,
+				    (unsigned long long)
+				    sas_device->enclosure_logical_id,
+				    sas_device->slot));
+			if (sas_device->connector_name[0] != '\0')
+				dewtprintk(ioc, pr_info(MPT3SAS_FMT
+				    "setting delete flag: enclosure "
+				    "level(0x%04x), connector name( %s)\n",
+				    ioc->name, sas_device->enclosure_level,
+				    sas_device->connector_name));
+		} else if (pcie_device) {
+			if (pcie_device->enclosure_handle != 0)
+				dewtprintk(ioc, pr_info(MPT3SAS_FMT
+				    "setting delete flag: logical "
+				    "id(0x%016llx), slot(%d)\n", ioc->name,
+				    (unsigned long long)
+				    pcie_device->enclosure_logical_id,
+				    pcie_device->slot));
+			if (pcie_device->connector_name[0] != '\0')
+				dewtprintk(ioc, pr_info(MPT3SAS_FMT
+				    "setting delete flag:, enclosure "
+				    "level(0x%04x), "
+				    "connector name( %s)\n", ioc->name,
+				    pcie_device->enclosure_level,
+				    pcie_device->connector_name));
+		}
 		_scsih_ublock_io_device(ioc, sas_address);
 		sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE;
 	}
@@ -3763,6 +3823,8 @@ _scsih_tm_tr_send(struct MPT3SAS_ADAPTER *ioc, u16 handle)
 out:
 	if (sas_device)
 		sas_device_put(sas_device);
+	if (pcie_device)
+		pcie_device_put(pcie_device);
 }
 
 /**