qla4xxx: driver initialization routines

new file mode 100644
index 0000000..b8c31a1
@@ -0,0 +1,1602 @@
+/*
+ * QLogic iSCSI HBA Driver
+ * Copyright (c)  2003-2006 QLogic Corporation
+ *
+ * See LICENSE.qla4xxx for copyright and licensing details.
+ */
+
+#include "ql4_def.h"
+
+/*
+*  QLogic ISP4xxx Hardware Support Function Prototypes.
+ */
+
+static void ql4xxx_set_mac_number(struct scsi_qla_host *ha)
+{
+	uint32_t value;
+	uint8_t func_number;
+	unsigned long flags;
+
+	/* Get the function number */
+	spin_lock_irqsave(&ha->hardware_lock, flags);
+	value = readw(&ha->reg->ctrl_status);
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+	func_number = (uint8_t) ((value >> 4) & 0x30);
+	switch (value & ISP_CONTROL_FN_MASK) {
+	case ISP_CONTROL_FN0_SCSI:
+		ha->mac_index = 1;
+		break;
+	case ISP_CONTROL_FN1_SCSI:
+		ha->mac_index = 3;
+		break;
+	default:
+		DEBUG2(printk("scsi%ld: %s: Invalid function number, "
+			      "ispControlStatus = 0x%x\n", ha->host_no,
+			      __func__, value));
+		break;
+	}
+	DEBUG2(printk("scsi%ld: %s: mac_index %d.\n", ha->host_no, __func__,
+		      ha->mac_index));
+}
+
+/**************************************************************************
+ * qla4xxx_free_ddb
+ *	This routine deallocates and unlinks the specified ddb_entry from the
+ *	adapter's
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *	ddb_entry - Pointer to device database entry
+ *
+ * Returns:
+ *	None
+ **************************************************************************/
+void qla4xxx_free_ddb(struct scsi_qla_host *ha, struct ddb_entry *ddb_entry)
+{
+	/* Remove device entry from list */
+	list_del_init(&ddb_entry->list);
+
+	/* Remove device pointer from index mapping arrays */
+	ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] =
+		(struct ddb_entry *) INVALID_ENTRY;
+	ha->tot_ddbs--;
+
+	/* Free memory and scsi-ml struct for device entry */
+	qla4xxx_destroy_sess(ddb_entry);
+}
+
+/**************************************************************************
+ * qla4xxx_free_ddb_list
+ *	This routine deallocates and removes all devices on the sppecified
+ *	adapter.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *
+ * Returns:
+ *	None
+ **************************************************************************/
+void qla4xxx_free_ddb_list(struct scsi_qla_host *ha)
+{
+	struct list_head *ptr;
+	struct ddb_entry *ddb_entry;
+
+	while (!list_empty(&ha->ddb_list)) {
+		ptr = ha->ddb_list.next;
+		/* Free memory for device entry and remove */
+		ddb_entry = list_entry(ptr, struct ddb_entry, list);
+		qla4xxx_free_ddb(ha, ddb_entry);
+	}
+}
+
+/*
+ * qla4xxx_init_rings
+ *	This routine initializes the internal queues for the specified adapter.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *
+ * Remarks:
+ *	The QLA4010 requires us to restart the queues at index 0.
+ *	The QLA4000 doesn't care, so just default to QLA4010's requirement.
+ * Returns:
+ *	QLA_SUCCESS - Always return success.
+ */
+int qla4xxx_init_rings(struct scsi_qla_host *ha)
+{
+	uint16_t i;
+	unsigned long flags = 0;
+
+	/* Initialize request queue. */
+	spin_lock_irqsave(&ha->hardware_lock, flags);
+	ha->request_out = 0;
+	ha->request_in = 0;
+	ha->request_ptr = &ha->request_ring[ha->request_in];
+	ha->req_q_count = REQUEST_QUEUE_DEPTH;
+
+	/* Initialize response queue. */
+	ha->response_in = 0;
+	ha->response_out = 0;
+	ha->response_ptr = &ha->response_ring[ha->response_out];
+
+	/*
+	 * Initialize DMA Shadow registers.  The firmware is really supposed to
+	 * take care of this, but on some uniprocessor systems, the shadow
+	 * registers aren't cleared-- causing the interrupt_handler to think
+	 * there are responses to be processed when there aren't.
+	 */
+	ha->shadow_regs->req_q_out = __constant_cpu_to_le32(0);
+	ha->shadow_regs->rsp_q_in = __constant_cpu_to_le32(0);
+	wmb();
+
+	writel(0, &ha->reg->req_q_in);
+	writel(0, &ha->reg->rsp_q_out);
+	readl(&ha->reg->rsp_q_out);
+
+	/* Initialize active array */
+	for (i = 0; i < MAX_SRBS; i++)
+		ha->active_srb_array[i] = NULL;
+
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+	return QLA_SUCCESS;
+}
+
+/**************************************************************************
+ * qla4xxx_validate_mac_address
+ *	This routine validates the M.A.C. Address(es) of the adapter
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *
+ * Returns:
+ *	QLA_SUCCESS - Successfully validated M.A.C. address
+ *	QLA_ERROR   - Failed to validate M.A.C. address
+ **************************************************************************/
+static int qla4xxx_validate_mac_address(struct scsi_qla_host *ha)
+{
+	struct flash_sys_info *sys_info;
+	dma_addr_t sys_info_dma;
+	int status = QLA_ERROR;
+
+	sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
+				      &sys_info_dma, GFP_KERNEL);
+	if (sys_info == NULL) {
+		DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
+			      ha->host_no, __func__));
+
+		goto exit_validate_mac_no_free;
+	}
+	memset(sys_info, 0, sizeof(*sys_info));
+
+	/* Get flash sys info */
+	if (qla4xxx_get_flash(ha, sys_info_dma, FLASH_OFFSET_SYS_INFO,
+			      sizeof(*sys_info)) != QLA_SUCCESS) {
+		DEBUG2(printk("scsi%ld: %s: get_flash FLASH_OFFSET_SYS_INFO "
+			      "failed\n", ha->host_no, __func__));
+
+		goto exit_validate_mac;
+	}
+
+	/* Save M.A.C. address & serial_number */
+	memcpy(ha->my_mac, &sys_info->physAddr[0].address[0],
+	       min(sizeof(ha->my_mac),
+		   sizeof(sys_info->physAddr[0].address)));
+	memcpy(ha->serial_number, &sys_info->acSerialNumber,
+	       min(sizeof(ha->serial_number),
+		   sizeof(sys_info->acSerialNumber)));
+
+	status = QLA_SUCCESS;
+
+ exit_validate_mac:
+	dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info,
+			  sys_info_dma);
+
+ exit_validate_mac_no_free:
+	return status;
+}
+
+/*
+ * qla4xxx_init_local_data
+ *	This routine initializes the local data for the specified adapter.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *
+ * Returns:
+ *	QLA_SUCCESS - Successfully initialized local data
+ *	QLA_ERROR   - Failed to initialize local data
+ */
+static int qla4xxx_init_local_data(struct scsi_qla_host *ha)
+{
+	int i;
+
+	/* Initialize passthru PDU list */
+	for (i = 0; i < (MAX_PDU_ENTRIES - 1); i++)
+		ha->pdu_queue[i].Next = &ha->pdu_queue[i + 1];
+	ha->free_pdu_top = &ha->pdu_queue[0];
+	ha->free_pdu_bottom = &ha->pdu_queue[MAX_PDU_ENTRIES - 1];
+	ha->free_pdu_bottom->Next = NULL;
+	ha->pdu_active = 0;
+
+	/* Initilize aen queue */
+	ha->aen_q_count = MAX_AEN_ENTRIES;
+
+	return qla4xxx_get_firmware_status(ha);
+}
+
+static int qla4xxx_fw_ready(struct scsi_qla_host *ha)
+{
+	uint32_t timeout_count;
+	int ready = 0;
+
+	DEBUG2(ql4_printk(KERN_INFO, ha, "Waiting for Firmware Ready..\n"));
+	for (timeout_count = ADAPTER_INIT_TOV; timeout_count > 0;
+	     timeout_count--) {
+		if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
+			qla4xxx_get_dhcp_ip_address(ha);
+
+		/* Get firmware state. */
+		if (qla4xxx_get_firmware_state(ha) != QLA_SUCCESS) {
+			DEBUG2(printk("scsi%ld: %s: unable to get firmware "
+				      "state\n", ha->host_no, __func__));
+			break;
+
+		}
+
+		if (ha->firmware_state & FW_STATE_ERROR) {
+			DEBUG2(printk("scsi%ld: %s: an unrecoverable error has"
+				      " occurred\n", ha->host_no, __func__));
+			break;
+
+		}
+		if (ha->firmware_state & FW_STATE_CONFIG_WAIT) {
+			/*
+			 * The firmware has not yet been issued an Initialize
+			 * Firmware command, so issue it now.
+			 */
+			if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR)
+				break;
+
+			/* Go back and test for ready state - no wait. */
+			continue;
+		}
+
+		if (ha->firmware_state == FW_STATE_READY) {
+			DEBUG2(ql4_printk(KERN_INFO, ha,
+					  "Firmware Ready..\n"));
+			/* The firmware is ready to process SCSI commands. */
+			DEBUG2(ql4_printk(KERN_INFO, ha,
+					  "scsi%ld: %s: MEDIA TYPE - %s\n",
+					  ha->host_no,
+					  __func__, (ha->addl_fw_state &
+						     FW_ADDSTATE_OPTICAL_MEDIA)
+					  != 0 ? "OPTICAL" : "COPPER"));
+			DEBUG2(ql4_printk(KERN_INFO, ha,
+					  "scsi%ld: %s: DHCP STATE Enabled "
+					  "%s\n",
+					  ha->host_no, __func__,
+					  (ha->addl_fw_state &
+					   FW_ADDSTATE_DHCP_ENABLED) != 0 ?
+					  "YES" : "NO"));
+			DEBUG2(ql4_printk(KERN_INFO, ha,
+					  "scsi%ld: %s: LINK %s\n",
+					  ha->host_no, __func__,
+					  (ha->addl_fw_state &
+					   FW_ADDSTATE_LINK_UP) != 0 ?
+					  "UP" : "DOWN"));
+			DEBUG2(ql4_printk(KERN_INFO, ha,
+					  "scsi%ld: %s: iSNS Service "
+					  "Started %s\n",
+					  ha->host_no, __func__,
+					  (ha->addl_fw_state &
+					   FW_ADDSTATE_ISNS_SVC_ENABLED) != 0 ?
+					  "YES" : "NO"));
+
+			ready = 1;
+			break;
+		}
+		DEBUG2(printk("scsi%ld: %s: waiting on fw, state=%x:%x - "
+			      "seconds expired= %d\n", ha->host_no, __func__,
+			      ha->firmware_state, ha->addl_fw_state,
+			      timeout_count));
+		msleep(1000);
+	}			/* end of for */
+
+	if (timeout_count <= 0)
+		DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n",
+			      ha->host_no, __func__));
+
+	if (ha->firmware_state & FW_STATE_DHCP_IN_PROGRESS)  {
+		DEBUG2(printk("scsi%ld: %s: FW is reporting its waiting to"
+			      " grab an IP address from DHCP server\n",
+			      ha->host_no, __func__));
+		ready = 1;
+	}
+
+	return ready;
+}
+
+/*
+ * qla4xxx_init_firmware
+ *	This routine initializes the firmware.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *
+ * Returns:
+ *	QLA_SUCCESS - Successfully initialized firmware
+ *	QLA_ERROR   - Failed to initialize firmware
+ */
+static int qla4xxx_init_firmware(struct scsi_qla_host *ha)
+{
+	int status = QLA_ERROR;
+
+	ql4_printk(KERN_INFO, ha, "Initializing firmware..\n");
+	if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) {
+		DEBUG2(printk("scsi%ld: %s: Failed to initialize firmware "
+			      "control block\n", ha->host_no, __func__));
+		return status;
+	}
+	if (!qla4xxx_fw_ready(ha))
+		return status;
+
+	set_bit(AF_ONLINE, &ha->flags);
+	return qla4xxx_get_firmware_status(ha);
+}
+
+static struct ddb_entry* qla4xxx_get_ddb_entry(struct scsi_qla_host *ha,
+					       uint32_t fw_ddb_index)
+{
+	struct dev_db_entry *fw_ddb_entry = NULL;
+	dma_addr_t fw_ddb_entry_dma;
+	struct ddb_entry *ddb_entry = NULL;
+	int found = 0;
+	uint32_t device_state;
+
+	/* Make sure the dma buffer is valid */
+	fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
+					  sizeof(*fw_ddb_entry),
+					  &fw_ddb_entry_dma, GFP_KERNEL);
+	if (fw_ddb_entry == NULL) {
+		DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
+			      ha->host_no, __func__));
+		return NULL;
+	}
+
+	if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry,
+				    fw_ddb_entry_dma, NULL, NULL,
+				    &device_state, NULL, NULL, NULL) ==
+	    QLA_ERROR) {
+		DEBUG2(printk("scsi%ld: %s: failed get_ddb_entry for "
+			      "fw_ddb_index %d\n", ha->host_no, __func__,
+			      fw_ddb_index));
+		return NULL;
+	}
+
+	/* Allocate DDB if not already allocated. */
+	DEBUG2(printk("scsi%ld: %s: Looking for ddb[%d]\n", ha->host_no,
+		      __func__, fw_ddb_index));
+	list_for_each_entry(ddb_entry, &ha->ddb_list, list) {
+		if (memcmp(ddb_entry->iscsi_name, fw_ddb_entry->iscsiName,
+			   ISCSI_NAME_SIZE) == 0) {
+			found++;
+			break;
+		}
+	}
+
+	if (!found) {
+		DEBUG2(printk("scsi%ld: %s: ddb[%d] not found - allocating "
+			      "new ddb\n", ha->host_no, __func__,
+			      fw_ddb_index));
+		ddb_entry = qla4xxx_alloc_ddb(ha, fw_ddb_index);
+	}
+
+	/* if not found allocate new ddb */
+	dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
+			  fw_ddb_entry_dma);
+
+	return ddb_entry;
+}
+
+/**************************************************************************
+ * qla4xxx_update_ddb_entry
+ *	This routine updates the driver's internal device database entry
+ *	with information retrieved from the firmware's device database
+ *	entry for the specified device.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *	ddb_entry - Pointer to device database entry
+ *
+ * Output:
+ *	ddb_entry - Structure filled in.
+ *
+ * Remarks:
+ *	The ddb_entry->fw_ddb_index field must be initialized prior to
+ *	calling this routine
+ *
+ * Returns:
+ *	QLA_SUCCESS - Successfully update ddb_entry
+ *	QLA_ERROR   - Failed to update ddb_entry
+ **************************************************************************/
+int qla4xxx_update_ddb_entry(struct scsi_qla_host *ha,
+			     struct ddb_entry *ddb_entry,
+			     uint32_t fw_ddb_index)
+{
+	struct dev_db_entry *fw_ddb_entry = NULL;
+	dma_addr_t fw_ddb_entry_dma;
+	int status = QLA_ERROR;
+
+	if (ddb_entry == NULL) {
+		DEBUG2(printk("scsi%ld: %s: ddb_entry is NULL\n", ha->host_no,
+			      __func__));
+		goto exit_update_ddb;
+	}
+
+	/* Make sure the dma buffer is valid */
+	fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
+					  sizeof(*fw_ddb_entry),
+					  &fw_ddb_entry_dma, GFP_KERNEL);
+	if (fw_ddb_entry == NULL) {
+		DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
+			      ha->host_no, __func__));
+
+		goto exit_update_ddb;
+	}
+
+	if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry,
+				    fw_ddb_entry_dma, NULL, NULL,
+				    &ddb_entry->fw_ddb_device_state, NULL,
+				    &ddb_entry->tcp_source_port_num,
+				    &ddb_entry->connection_id) ==
+	    QLA_ERROR) {
+		DEBUG2(printk("scsi%ld: %s: failed get_ddb_entry for "
+			      "fw_ddb_index %d\n", ha->host_no, __func__,
+			      fw_ddb_index));
+
+		goto exit_update_ddb;
+	}
+
+	status = QLA_SUCCESS;
+	ddb_entry->target_session_id = le16_to_cpu(fw_ddb_entry->TSID);
+	ddb_entry->task_mgmt_timeout =
+		le16_to_cpu(fw_ddb_entry->taskMngmntTimeout);
+	ddb_entry->CmdSn = 0;
+	ddb_entry->exe_throttle = le16_to_cpu(fw_ddb_entry->exeThrottle);
+	ddb_entry->default_relogin_timeout =
+		le16_to_cpu(fw_ddb_entry->taskMngmntTimeout);
+	ddb_entry->default_time2wait = le16_to_cpu(fw_ddb_entry->minTime2Wait);
+
+	/* Update index in case it changed */
+	ddb_entry->fw_ddb_index = fw_ddb_index;
+	ha->fw_ddb_index_map[fw_ddb_index] = ddb_entry;
+
+	ddb_entry->port = le16_to_cpu(fw_ddb_entry->portNumber);
+	ddb_entry->tpgt = le32_to_cpu(fw_ddb_entry->TargetPortalGroup);
+	memcpy(&ddb_entry->iscsi_name[0], &fw_ddb_entry->iscsiName[0],
+	       min(sizeof(ddb_entry->iscsi_name),
+		   sizeof(fw_ddb_entry->iscsiName)));
+	memcpy(&ddb_entry->ip_addr[0], &fw_ddb_entry->ipAddr[0],
+	       min(sizeof(ddb_entry->ip_addr), sizeof(fw_ddb_entry->ipAddr)));
+
+	DEBUG2(printk("scsi%ld: %s: ddb[%d] - State= %x status= %d.\n",
+		      ha->host_no, __func__, fw_ddb_index,
+		      ddb_entry->fw_ddb_device_state, status));
+
+ exit_update_ddb:
+	if (fw_ddb_entry)
+		dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
+				  fw_ddb_entry, fw_ddb_entry_dma);
+
+	return status;
+}
+
+/**************************************************************************
+ * qla4xxx_alloc_ddb
+ *	This routine allocates a ddb_entry, ititializes some values, and
+ *	inserts it into the ddb list.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *	fw_ddb_index - Firmware's device database index
+ *
+ * Returns:
+ *	Pointer to internal device database structure
+ **************************************************************************/
+struct ddb_entry * qla4xxx_alloc_ddb(struct scsi_qla_host *ha,
+				     uint32_t fw_ddb_index)
+{
+	struct ddb_entry *ddb_entry;
+
+	DEBUG2(printk("scsi%ld: %s: fw_ddb_index [%d]\n", ha->host_no,
+		      __func__, fw_ddb_index));
+
+	ddb_entry = qla4xxx_alloc_sess(ha);
+	if (ddb_entry == NULL) {
+		DEBUG2(printk("scsi%ld: %s: Unable to allocate memory "
+			      "to add fw_ddb_index [%d]\n",
+			      ha->host_no, __func__, fw_ddb_index));
+		return ddb_entry;
+	}
+
+	ddb_entry->fw_ddb_index = fw_ddb_index;
+	atomic_set(&ddb_entry->port_down_timer, ha->port_down_retry_count);
+	atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
+	atomic_set(&ddb_entry->relogin_timer, 0);
+	atomic_set(&ddb_entry->relogin_retry_count, 0);
+	atomic_set(&ddb_entry->state, DDB_STATE_ONLINE);
+	list_add_tail(&ddb_entry->list, &ha->ddb_list);
+	ha->fw_ddb_index_map[fw_ddb_index] = ddb_entry;
+	ha->tot_ddbs++;
+
+	return ddb_entry;
+}
+
+/**************************************************************************
+ * qla4xxx_configure_ddbs
+ *	This routine searches for all valid firmware ddb entries and builds
+ *	an internal ddb list.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *
+ * Remarks:
+ *	Ddbs that are considered valid are those with a device state of
+ *	SESSION_ACTIVE.
+ *
+ * Returns:
+ *	QLA_SUCCESS - Successfully built internal ddb list, if targets available
+ *	QLA_ERROR   - Error on a mailbox command
+ **************************************************************************/
+static int qla4xxx_build_ddb_list(struct scsi_qla_host *ha)
+{
+	int status = QLA_SUCCESS;
+	uint32_t fw_ddb_index = 0;
+	uint32_t next_fw_ddb_index = 0;
+	uint32_t ddb_state;
+	uint32_t conn_err, err_code;
+	struct ddb_entry *ddb_entry;
+
+	ql4_printk(KERN_INFO, ha, "Initializing DDBs ...\n");
+	for (fw_ddb_index = 0; fw_ddb_index < MAX_DDB_ENTRIES;
+	     fw_ddb_index = next_fw_ddb_index) {
+		/* First, let's see if a device exists here */
+		if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, NULL, 0, NULL,
+					    &next_fw_ddb_index, &ddb_state,
+					    &conn_err, NULL, NULL) ==
+		    QLA_ERROR) {
+			DEBUG2(printk("scsi%ld: %s: get_ddb_entry, "
+				      "fw_ddb_index %d failed", ha->host_no,
+				      __func__, fw_ddb_index));
+			return QLA_ERROR;
+		}
+
+		DEBUG2(printk("scsi%ld: %s: Getting DDB[%d] ddbstate=0x%x, "
+			      "next_fw_ddb_index=%d.\n", ha->host_no, __func__,
+			      fw_ddb_index, ddb_state, next_fw_ddb_index));
+
+		/* Issue relogin, if necessary. */
+		if (ddb_state == DDB_DS_SESSION_FAILED ||
+		    ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) {
+			/* Try and login to device */
+			DEBUG2(printk("scsi%ld: %s: Login to DDB[%d]\n",
+				      ha->host_no, __func__, fw_ddb_index));
+			err_code = ((conn_err & 0x00ff0000) >> 16);
+			if (err_code == 0x1c || err_code == 0x06) {
+				DEBUG2(printk("scsi%ld: %s send target "
+					      "completed "
+					      "or access denied failure\n",
+					      ha->host_no, __func__));
+			} else
+				qla4xxx_set_ddb_entry(ha, fw_ddb_index, 0);
+		}
+
+		if (ddb_state != DDB_DS_SESSION_ACTIVE)
+			continue;
+		/*
+		 * if fw_ddb with session active state found,
+		 * add to ddb_list
+		 */
+		DEBUG2(printk("scsi%ld: %s: DDB[%d] added to list\n",
+			      ha->host_no, __func__, fw_ddb_index));
+
+		/* Add DDB to internal our ddb list. */
+		ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index);
+		if (ddb_entry == NULL) {
+			DEBUG2(printk("scsi%ld: %s: Unable to allocate memory "
+				      "for device at fw_ddb_index %d\n",
+				      ha->host_no, __func__, fw_ddb_index));
+			return QLA_ERROR;
+		}
+		/* Fill in the device structure */
+		if (qla4xxx_update_ddb_entry(ha, ddb_entry, fw_ddb_index) ==
+		    QLA_ERROR) {
+			ha->fw_ddb_index_map[fw_ddb_index] =
+				(struct ddb_entry *)INVALID_ENTRY;
+
+
+			DEBUG2(printk("scsi%ld: %s: update_ddb_entry failed "
+				      "for fw_ddb_index %d.\n",
+				      ha->host_no, __func__, fw_ddb_index));
+			return QLA_ERROR;
+		}
+
+		/* We know we've reached the last device when
+		 * next_fw_ddb_index is 0 */
+		if (next_fw_ddb_index == 0)
+			break;
+	}
+
+	ql4_printk(KERN_INFO, ha, "DDB list done..\n");
+
+	return status;
+}
+
+struct qla4_relog_scan {
+	int halt_wait;
+	uint32_t conn_err;
+	uint32_t err_code;
+	uint32_t fw_ddb_index;
+	uint32_t next_fw_ddb_index;
+	uint32_t fw_ddb_device_state;
+};
+
+static int qla4_test_rdy(struct scsi_qla_host *ha, struct qla4_relog_scan *rs)
+{
+	struct ddb_entry *ddb_entry;
+
+	/*
+	 * Don't want to do a relogin if connection
+	 * error is 0x1c.
+	 */
+	rs->err_code = ((rs->conn_err & 0x00ff0000) >> 16);
+	if (rs->err_code == 0x1c || rs->err_code == 0x06) {
+		DEBUG2(printk(
+			       "scsi%ld: %s send target"
+			       " completed or "
+			       "access denied failure\n",
+			       ha->host_no, __func__));
+	} else {
+		/* We either have a device that is in
+		 * the process of relogging in or a
+		 * device that is waiting to be
+		 * relogged in */
+		rs->halt_wait = 0;
+
+		ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha,
+							   rs->fw_ddb_index);
+		if (ddb_entry == NULL)
+			return QLA_ERROR;
+
+		if (ddb_entry->dev_scan_wait_to_start_relogin != 0
+		    && time_after_eq(jiffies,
+				     ddb_entry->
+				     dev_scan_wait_to_start_relogin))
+		{
+			ddb_entry->dev_scan_wait_to_start_relogin = 0;
+			qla4xxx_set_ddb_entry(ha, rs->fw_ddb_index, 0);
+		}
+	}
+	return QLA_SUCCESS;
+}
+
+static int qla4_scan_for_relogin(struct scsi_qla_host *ha,
+				 struct qla4_relog_scan *rs)
+{
+	int error;
+
+	/* scan for relogins
+	 * ----------------- */
+	for (rs->fw_ddb_index = 0; rs->fw_ddb_index < MAX_DDB_ENTRIES;
+	     rs->fw_ddb_index = rs->next_fw_ddb_index) {
+		if (qla4xxx_get_fwddb_entry(ha, rs->fw_ddb_index, NULL, 0,
+					    NULL, &rs->next_fw_ddb_index,
+					    &rs->fw_ddb_device_state,
+					    &rs->conn_err, NULL, NULL)
+		    == QLA_ERROR)
+			return QLA_ERROR;
+
+		if (rs->fw_ddb_device_state == DDB_DS_LOGIN_IN_PROCESS)
+			rs->halt_wait = 0;
+
+		if (rs->fw_ddb_device_state == DDB_DS_SESSION_FAILED ||
+		    rs->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) {
+			error = qla4_test_rdy(ha, rs);
+			if (error)
+				return error;
+		}
+
+		/* We know we've reached the last device when
+		 * next_fw_ddb_index is 0 */
+		if (rs->next_fw_ddb_index == 0)
+			break;
+	}
+	return QLA_SUCCESS;
+}
+
+/**************************************************************************
+ * qla4xxx_devices_ready
+ *	This routine waits up to ql4xdiscoverywait seconds
+ *	F/W database during driver load time.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *
+ * Returns:
+ *	QLA_SUCCESS - Successfully (re)built internal ddb list
+ *	QLA_ERROR   - Failed to (re)build internal ddb list
+ **************************************************************************/
+static int qla4xxx_devices_ready(struct scsi_qla_host *ha)
+{
+	int error;
+	unsigned long discovery_wtime;
+	struct qla4_relog_scan rs;
+
+	discovery_wtime = jiffies + (ql4xdiscoverywait * HZ);
+
+	DEBUG(printk("Waiting (%d) for devices ...\n", ql4xdiscoverywait));
+	do {
+		/* poll for AEN. */
+		qla4xxx_get_firmware_state(ha);
+		if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) {
+			/* Set time-between-relogin timer */
+			qla4xxx_process_aen(ha, RELOGIN_DDB_CHANGED_AENS);
+		}
+
+		/* if no relogins active or needed, halt discvery wait */
+		rs.halt_wait = 1;
+
+		error = qla4_scan_for_relogin(ha, &rs);
+
+		if (rs.halt_wait) {
+			DEBUG2(printk("scsi%ld: %s: Delay halted.  Devices "
+				      "Ready.\n", ha->host_no, __func__));
+			return QLA_SUCCESS;
+		}
+
+		msleep(2000);
+	} while (!time_after_eq(jiffies, discovery_wtime));
+
+	DEBUG3(qla4xxx_get_conn_event_log(ha));
+
+	return QLA_SUCCESS;
+}
+
+static void qla4xxx_flush_AENS(struct scsi_qla_host *ha)
+{
+	unsigned long wtime;
+
+	/* Flush the 0x8014 AEN from the firmware as a result of
+	 * Auto connect. We are basically doing get_firmware_ddb()
+	 * to determine whether we need to log back in or not.
+	 *  Trying to do a set ddb before we have processed 0x8014
+	 *  will result in another set_ddb() for the same ddb. In other
+	 *  words there will be stale entries in the aen_q.
+	 */
+	wtime = jiffies + (2 * HZ);
+	do {
+		if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS)
+			if (ha->firmware_state & (BIT_2 | BIT_0))
+				return;
+
+		if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
+			qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
+
+		msleep(1000);
+	} while (!time_after_eq(jiffies, wtime));
+
+}
+
+static int qla4xxx_initialize_ddb_list(struct scsi_qla_host *ha)
+{
+	uint16_t fw_ddb_index;
+	int status = QLA_SUCCESS;
+
+	/* free the ddb list if is not empty */
+	if (!list_empty(&ha->ddb_list))
+		qla4xxx_free_ddb_list(ha);
+
+	for (fw_ddb_index = 0; fw_ddb_index < MAX_DDB_ENTRIES; fw_ddb_index++)
+		ha->fw_ddb_index_map[fw_ddb_index] =
+			(struct ddb_entry *)INVALID_ENTRY;
+
+	ha->tot_ddbs = 0;
+
+	qla4xxx_flush_AENS(ha);
+
+	/*
+	 * First perform device discovery for active
+	 * fw ddb indexes and build
+	 * ddb list.
+	 */
+	if ((status = qla4xxx_build_ddb_list(ha)) == QLA_ERROR)
+		return status;
+
+	/* Wait for an AEN */
+	qla4xxx_devices_ready(ha);
+
+	/*
+	 * Targets can come online after the inital discovery, so processing
+	 * the aens here will catch them.
+	 */
+	if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
+		qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
+
+	return status;
+}
+
+/*
+ * qla4xxx_update_ddb_list
+ *	This routine obtains device information from the F/W database after
+ *	firmware or adapter resets.  The device table is preserved.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *
+ * Returns:
+ *	QLA_SUCCESS - Successfully updated internal ddb list
+ *	QLA_ERROR   - Failed to update internal ddb list
+ */
+int qla4xxx_reinitialize_ddb_list(struct scsi_qla_host *ha)
+{
+	int status = QLA_SUCCESS;
+	struct ddb_entry *ddb_entry, *detemp;
+
+	/* Update the device information for all devices. */
+	list_for_each_entry_safe(ddb_entry, detemp, &ha->ddb_list, list) {
+		qla4xxx_update_ddb_entry(ha, ddb_entry,
+					 ddb_entry->fw_ddb_index);
+		if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
+			atomic_set(&ddb_entry->state, DDB_STATE_ONLINE);
+			DEBUG2(printk ("scsi%ld: %s: ddb index [%d] marked "
+				       "ONLINE\n", ha->host_no, __func__,
+				       ddb_entry->fw_ddb_index));
+		} else if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE)
+			qla4xxx_mark_device_missing(ha, ddb_entry);
+	}
+	return status;
+}
+
+/**************************************************************************
+ * qla4xxx_relogin_device
+ *	This routine does a session relogin with the specified device.
+ *	The ddb entry must be assigned prior to making this call.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *	ddb_entry - Pointer to device database entry
+ *
+ * Returns:
+ *    QLA_SUCCESS = Successfully relogged in device
+ *    QLA_ERROR	  = Failed to relogin device
+ **************************************************************************/
+int qla4xxx_relogin_device(struct scsi_qla_host *ha,
+			   struct ddb_entry * ddb_entry)
+{
+	uint16_t relogin_timer;
+
+	relogin_timer = max(ddb_entry->default_relogin_timeout,
+			    (uint16_t)RELOGIN_TOV);
+	atomic_set(&ddb_entry->relogin_timer, relogin_timer);
+
+	DEBUG2(printk("scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
+		      ddb_entry->fw_ddb_index, relogin_timer));
+
+	qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index, 0);
+
+	return QLA_SUCCESS;
+}
+
+/**************************************************************************
+ * qla4010_topcat_soft_reset
+ *	This routine determines if the QLA4040 TopCat chip is present.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *
+ * Returns:
+ *	None.
+ **************************************************************************/
+static void qla4010_get_topcat_presence(struct scsi_qla_host *ha)
+{
+	unsigned long flags;
+	uint16_t topcat;
+
+	ql4xxx_lock_nvram(ha);
+	spin_lock_irqsave(&ha->hardware_lock, flags);
+	topcat = rd_nvram_word(ha, offsetof(struct eeprom_data,
+					    isp4010.topcat));
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+	if ((topcat & TOPCAT_MASK) == TOPCAT_PRESENT)
+		set_bit(AF_TOPCAT_CHIP_PRESENT, &ha->flags);
+	else
+		clear_bit(AF_TOPCAT_CHIP_PRESENT, &ha->flags);
+	ql4xxx_unlock_nvram(ha);
+}
+
+
+static int qla4xxx_config_nvram(struct scsi_qla_host *ha)
+{
+	unsigned long flags;
+	union external_hw_config_reg extHwConfig;
+
+	DEBUG2(printk("scsi%ld: %s: Get EEProm parameters \n", ha->host_no,
+		      __func__));
+	ql4xxx_lock_flash(ha);
+	ql4xxx_lock_nvram(ha);
+
+	/* Get EEPRom Parameters from NVRAM and validate */
+	ql4_printk(KERN_INFO, ha, "Configuring NVRAM ...\n");
+	if (qla4xxx_is_nvram_configuration_valid(ha) == QLA_SUCCESS) {
+		spin_lock_irqsave(&ha->hardware_lock, flags);
+		extHwConfig.Asuint32_t =
+			rd_nvram_word(ha, eeprom_ext_hw_conf_offset(ha));
+		spin_unlock_irqrestore(&ha->hardware_lock, flags);
+	} else {
+		/*
+		 * QLogic adapters should always have a valid NVRAM.
+		 * If not valid, do not load.
+		 */
+		ql4_printk(KERN_WARNING, ha,
+			   "scsi%ld: %s: EEProm checksum invalid.  "
+			   "Please update your EEPROM\n", ha->host_no,
+			   __func__);
+
+		/* set defaults */
+		if (is_qla4010(ha))
+			extHwConfig.Asuint32_t = 0x1912;
+		else if (is_qla4022(ha))
+			extHwConfig.Asuint32_t = 0x0023;
+	}
+	DEBUG(printk("scsi%ld: %s: Setting extHwConfig to 0xFFFF%04x\n",
+		     ha->host_no, __func__, extHwConfig.Asuint32_t));
+
+	spin_lock_irqsave(&ha->hardware_lock, flags);
+	writel((0xFFFF << 16) | extHwConfig.Asuint32_t, isp_ext_hw_conf(ha));
+	readl(isp_ext_hw_conf(ha));
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+	ql4xxx_unlock_nvram(ha);
+	ql4xxx_unlock_flash(ha);
+
+	return 1;
+}
+
+static void qla4x00_pci_config(struct scsi_qla_host *ha)
+{
+	uint16_t w, mwi;
+
+	ql4_printk(KERN_INFO, ha, "Configuring PCI space...\n");
+
+	pci_set_master(ha->pdev);
+	mwi = 0;
+	if (pci_set_mwi(ha->pdev))
+		mwi = PCI_COMMAND_INVALIDATE;
+	/*
+	 * We want to respect framework's setting of PCI configuration space
+	 * command register and also want to make sure that all bits of
+	 * interest to us are properly set in command register.
+	 */
+	pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
+	w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
+	w &= ~PCI_COMMAND_INTX_DISABLE;
+	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
+}
+
+static int qla4xxx_start_firmware_from_flash(struct scsi_qla_host *ha)
+{
+	int status = QLA_ERROR;
+	uint32_t max_wait_time;
+	unsigned long flags;
+	uint32_t mbox_status;
+
+	ql4_printk(KERN_INFO, ha, "Starting firmware ...\n");
+
+	/*
+	 * Start firmware from flash ROM
+	 *
+	 * WORKAROUND: Stuff a non-constant value that the firmware can
+	 * use as a seed for a random number generator in MB7 prior to
+	 * setting BOOT_ENABLE.	 Fixes problem where the TCP
+	 * connections use the same TCP ports after each reboot,
+	 * causing some connections to not get re-established.
+	 */
+	DEBUG(printk("scsi%d: %s: Start firmware from flash ROM\n",
+		     ha->host_no, __func__));
+
+	spin_lock_irqsave(&ha->hardware_lock, flags);
+	writel(jiffies, &ha->reg->mailbox[7]);
+	if (is_qla4022(ha))
+		writel(set_rmask(NVR_WRITE_ENABLE),
+		       &ha->reg->u1.isp4022.nvram);
+
+	writel(set_rmask(CSR_BOOT_ENABLE), &ha->reg->ctrl_status);
+	readl(&ha->reg->ctrl_status);
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+	/* Wait for firmware to come UP. */
+	max_wait_time = FIRMWARE_UP_TOV * 4;
+	do {
+		uint32_t ctrl_status;
+
+		spin_lock_irqsave(&ha->hardware_lock, flags);
+		ctrl_status = readw(&ha->reg->ctrl_status);
+		mbox_status = readw(&ha->reg->mailbox[0]);
+		spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+		if (ctrl_status & set_rmask(CSR_SCSI_PROCESSOR_INTR))
+			break;
+		if (mbox_status == MBOX_STS_COMMAND_COMPLETE)
+			break;
+
+		DEBUG2(printk("scsi%ld: %s: Waiting for boot firmware to "
+			      "complete... ctrl_sts=0x%x, remaining=%d\n",
+			      ha->host_no, __func__, ctrl_status,
+			      max_wait_time));
+
+		msleep(250);
+	} while ((max_wait_time--));
+
+	if (mbox_status == MBOX_STS_COMMAND_COMPLETE) {
+		DEBUG(printk("scsi%ld: %s: Firmware has started\n",
+			     ha->host_no, __func__));
+
+		spin_lock_irqsave(&ha->hardware_lock, flags);
+		writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
+		       &ha->reg->ctrl_status);
+		readl(&ha->reg->ctrl_status);
+		spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+		status = QLA_SUCCESS;
+	} else {
+		printk(KERN_INFO "scsi%ld: %s: Boot firmware failed "
+		       "-  mbox status 0x%x\n", ha->host_no, __func__,
+		       mbox_status);
+		status = QLA_ERROR;
+	}
+	return status;
+}
+
+static void ql4xxx_lock_drvr_wait(struct scsi_qla_host *a)
+{
+	int i = 0;
+	while (1) {
+		if (ql4xxx_lock_drvr(a) == 0) {
+			msleep(10);
+			if (!i) {
+				DEBUG2(printk("scsi%ld: %s: Waiting for "
+					      "Global Init Semaphore...n",
+					      a->host_no,
+					      __func__));
+				i++;
+			}
+		} else {
+			DEBUG2(printk("scsi%ld: %s: Global Init Semaphore "
+				      "acquired.n", a->host_no, __func__));
+			break;
+		}
+	}
+}
+
+/**************************************************************************
+ * qla4xxx_start_firmware
+ *	This routine performs the neccessary steps to start the firmware for
+ *	the QLA4010 adapter.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *
+ * Returns:
+ *	QLA_SUCCESS - Successfully started QLA4xxx firmware
+ *	QLA_ERROR   - Failed to start QLA4xxx firmware
+ **************************************************************************/
+static int qla4xxx_start_firmware(struct scsi_qla_host *ha)
+{
+	unsigned long flags = 0;
+	uint32_t mbox_status;
+	int status = QLA_ERROR;
+	int soft_reset = 1;
+	int config_chip = 0;
+
+	if (is_qla4010(ha))
+		qla4010_get_topcat_presence(ha);
+
+	if (is_qla4022(ha))
+		ql4xxx_set_mac_number(ha);
+
+	ql4xxx_lock_drvr_wait(ha);
+
+	spin_lock_irqsave(&ha->hardware_lock, flags);
+
+	DEBUG2(printk("scsi%ld: %s: port_ctrl	= 0x%08X\n", ha->host_no,
+		      __func__, readw(isp_port_ctrl(ha))));
+	DEBUG(printk("scsi%ld: %s: port_status = 0x%08X\n", ha->host_no,
+		     __func__, readw(isp_port_status(ha))));
+
+	/* Is Hardware already initialized? */
+	if ((readw(isp_port_ctrl(ha)) & 0x8000) != 0) {
+		DEBUG(printk("scsi%ld: %s: Hardware has already been "
+			     "initialized\n", ha->host_no, __func__));
+
+		/* Receive firmware boot acknowledgement */
+		mbox_status = readw(&ha->reg->mailbox[0]);
+
+		DEBUG2(printk("scsi%ld: %s: H/W Config complete - mbox[0]= "
+			      "0x%x\n", ha->host_no, __func__, mbox_status));
+
+		/* Is firmware already booted? */
+		if (mbox_status == 0) {
+			/* F/W not running, must be config by net driver */
+			config_chip = 1;
+			soft_reset = 0;
+		} else {
+			writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
+			       &ha->reg->ctrl_status);
+			readl(&ha->reg->ctrl_status);
+			spin_unlock_irqrestore(&ha->hardware_lock, flags);
+			if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) {
+				DEBUG2(printk("scsi%ld: %s: Get firmware "
+					      "state -- state = 0x%x\n",
+					      ha->host_no,
+					      __func__, ha->firmware_state));
+				/* F/W is running */
+				if (ha->firmware_state &
+				    FW_STATE_CONFIG_WAIT) {
+					DEBUG2(printk("scsi%ld: %s: Firmware "
+						      "in known state -- "
+						      "config and "
+						      "boot, state = 0x%x\n",
+						      ha->host_no, __func__,
+						      ha->firmware_state));
+					config_chip = 1;
+					soft_reset = 0;
+				}
+			} else {
+				DEBUG2(printk("scsi%ld: %s: Firmware in "
+					      "unknown state -- resetting,"
+					      " state = "
+					      "0x%x\n", ha->host_no, __func__,
+					      ha->firmware_state));
+			}
+			spin_lock_irqsave(&ha->hardware_lock, flags);
+		}
+	} else {
+		DEBUG(printk("scsi%ld: %s: H/W initialization hasn't been "
+			     "started - resetting\n", ha->host_no, __func__));
+	}
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+	DEBUG(printk("scsi%ld: %s: Flags soft_rest=%d, config= %d\n ",
+		     ha->host_no, __func__, soft_reset, config_chip));
+	if (soft_reset) {
+		DEBUG(printk("scsi%ld: %s: Issue Soft Reset\n", ha->host_no,
+			     __func__));
+		status = qla4xxx_soft_reset(ha);
+		if (status == QLA_ERROR) {
+			DEBUG(printk("scsi%d: %s: Soft Reset failed!\n",
+				     ha->host_no, __func__));
+			ql4xxx_unlock_drvr(ha);
+			return QLA_ERROR;
+		}
+		config_chip = 1;
+
+		/* Reset clears the semaphore, so aquire again */
+		ql4xxx_lock_drvr_wait(ha);
+	}
+
+	if (config_chip) {
+		if (qla4xxx_config_nvram(ha))
+			status = qla4xxx_start_firmware_from_flash(ha);
+	}
+
+	ql4xxx_unlock_drvr(ha);
+	if (status == QLA_SUCCESS) {
+		qla4xxx_get_fw_version(ha);
+		if (test_and_clear_bit(AF_GET_CRASH_RECORD, &ha->flags))
+			qla4xxx_get_crash_record(ha);
+	} else {
+		DEBUG(printk("scsi%ld: %s: Firmware has NOT started\n",
+			     ha->host_no, __func__));
+	}
+	return status;
+}
+
+
+/**************************************************************************
+ * qla4xxx_initialize_adapter
+ *	This routine parforms all of the steps necessary to initialize the
+ *	adapter.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *	renew_ddb_list - Indicates what to do with the adapter's ddb list
+ *			after adapter recovery has completed.
+ *			0=preserve ddb list, 1=destroy and rebuild ddb list
+ *
+ * Returns:
+ *	QLA_SUCCESS - Successfully initialized adapter
+ *	QLA_ERROR   - Failed to initialize adapter
+ **************************************************************************/
+int qla4xxx_initialize_adapter(struct scsi_qla_host *ha,
+			       uint8_t renew_ddb_list)
+{
+	int status = QLA_ERROR;
+	int8_t ip_address[IP_ADDR_LEN] = {0} ;
+
+	ha->eeprom_cmd_data = 0;
+
+	qla4x00_pci_config(ha);
+
+	qla4xxx_disable_intrs(ha);
+
+	/* Initialize the Host adapter request/response queues and firmware */
+	if (qla4xxx_start_firmware(ha) == QLA_ERROR)
+		return status;
+
+	if (qla4xxx_validate_mac_address(ha) == QLA_ERROR)
+		return status;
+
+	if (qla4xxx_init_local_data(ha) == QLA_ERROR)
+		return status;
+
+	status = qla4xxx_init_firmware(ha);
+	if (status == QLA_ERROR)
+		return status;
+
+	/*
+	 * FW is waiting to get an IP address from DHCP server: Skip building
+	 * the ddb_list and wait for DHCP lease acquired aen to come in
+	 * followed by 0x8014 aen" to trigger the tgt discovery process.
+	 */
+	if (ha->firmware_state & FW_STATE_DHCP_IN_PROGRESS)
+		return status;
+
+	/* Skip device discovery if ip and subnet is zero */
+	if (memcmp(ha->ip_address, ip_address, IP_ADDR_LEN) == 0 ||
+	    memcmp(ha->subnet_mask, ip_address, IP_ADDR_LEN) == 0)
+		return status;
+
+	if (renew_ddb_list == PRESERVE_DDB_LIST) {
+		/*
+		 * We want to preserve lun states (i.e. suspended, etc.)
+		 * for recovery initiated by the driver.  So just update
+		 * the device states for the existing ddb_list.
+		 */
+		qla4xxx_reinitialize_ddb_list(ha);
+	} else if (renew_ddb_list == REBUILD_DDB_LIST) {
+		/*
+		 * We want to build the ddb_list from scratch during
+		 * driver initialization and recovery initiated by the
+		 * INT_HBA_RESET IOCTL.
+		 */
+		status = qla4xxx_initialize_ddb_list(ha);
+		if (status == QLA_ERROR) {
+			DEBUG2(printk("%s(%ld) Error occurred during build"
+				      "ddb list\n", __func__, ha->host_no));
+			goto exit_init_hba;
+		}
+
+	}
+	if (!ha->tot_ddbs) {
+		DEBUG2(printk("scsi%ld: Failed to initialize devices or none "
+			      "present in Firmware device database\n",
+			      ha->host_no));
+	}
+
+ exit_init_hba:
+	return status;
+
+}
+
+/**************************************************************************
+ * qla4xxx_add_device_dynamically
+ *	This routine processes adds a device as a result of an 8014h AEN.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *	fw_ddb_index - Firmware's device database index
+ *
+ * Returns:
+ *	None
+ **************************************************************************/
+static void qla4xxx_add_device_dynamically(struct scsi_qla_host *ha,
+					   uint32_t fw_ddb_index)
+{
+	struct ddb_entry * ddb_entry;
+
+	/* First allocate a device structure */
+	ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index);
+	if (ddb_entry == NULL) {
+		DEBUG2(printk(KERN_WARNING
+			      "scsi%ld: Unable to allocate memory to add "
+			      "fw_ddb_index %d\n", ha->host_no, fw_ddb_index));
+		return;
+	}
+
+	if (qla4xxx_update_ddb_entry(ha, ddb_entry, fw_ddb_index) ==
+				    QLA_ERROR) {
+		ha->fw_ddb_index_map[fw_ddb_index] =
+					(struct ddb_entry *)INVALID_ENTRY;
+		DEBUG2(printk(KERN_WARNING
+			      "scsi%ld: failed to add new device at index "
+			      "[%d]\n Unable to retrieve fw ddb entry\n",
+			      ha->host_no, fw_ddb_index));
+		qla4xxx_free_ddb(ha, ddb_entry);
+		return;
+	}
+
+	if (qla4xxx_add_sess(ddb_entry)) {
+		DEBUG2(printk(KERN_WARNING
+			      "scsi%ld: failed to add new device at index "
+			      "[%d]\n Unable to add connection and session\n",
+			      ha->host_no, fw_ddb_index));
+		qla4xxx_free_ddb(ha, ddb_entry);
+	}
+}
+
+/**************************************************************************
+ * qla4xxx_process_ddb_changed
+ *	This routine processes a Decive Database Changed AEN Event.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *	fw_ddb_index - Firmware's device database index
+ *	state - Device state
+ *
+ * Returns:
+ *	QLA_SUCCESS - Successfully processed ddb_changed aen
+ *	QLA_ERROR   - Failed to process ddb_changed aen
+ **************************************************************************/
+int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha,
+				uint32_t fw_ddb_index, uint32_t state)
+{
+	struct ddb_entry * ddb_entry;
+	uint32_t old_fw_ddb_device_state;
+
+	/* check for out of range index */
+	if (fw_ddb_index >= MAX_DDB_ENTRIES)
+		return QLA_ERROR;
+
+	/* Get the corresponging ddb entry */
+	ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index);
+	/* Device does not currently exist in our database. */
+	if (ddb_entry == NULL) {
+		if (state == DDB_DS_SESSION_ACTIVE)
+			qla4xxx_add_device_dynamically(ha, fw_ddb_index);
+		return QLA_SUCCESS;
+	}
+
+	/* Device already exists in our database. */
+	old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
+	DEBUG2(printk("scsi%ld: %s DDB - old state= 0x%x, new state=0x%x for "
+		      "index [%d]\n", ha->host_no, __func__,
+		      ddb_entry->fw_ddb_device_state, state, fw_ddb_index));
+	if (old_fw_ddb_device_state == state &&
+	    state == DDB_DS_SESSION_ACTIVE) {
+		/* Do nothing, state not changed. */
+		return QLA_SUCCESS;
+	}
+
+	ddb_entry->fw_ddb_device_state = state;
+	/* Device is back online. */
+	if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
+		atomic_set(&ddb_entry->port_down_timer,
+			   ha->port_down_retry_count);
+		atomic_set(&ddb_entry->state, DDB_STATE_ONLINE);
+		atomic_set(&ddb_entry->relogin_retry_count, 0);
+		atomic_set(&ddb_entry->relogin_timer, 0);
+		clear_bit(DF_RELOGIN, &ddb_entry->flags);
+		clear_bit(DF_NO_RELOGIN, &ddb_entry->flags);
+		iscsi_if_create_session_done(ddb_entry->conn);
+		/*
+		 * Change the lun state to READY in case the lun TIMEOUT before
+		 * the device came back.
+		 */
+	} else {
+		/* Device went away, try to relogin. */
+		/* Mark device missing */
+		if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE)
+			qla4xxx_mark_device_missing(ha, ddb_entry);
+		/*
+		 * Relogin if device state changed to a not active state.
+		 * However, do not relogin if this aen is a result of an IOCTL
+		 * logout (DF_NO_RELOGIN) or if this is a discovered device.
+		 */
+		if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_FAILED &&
+		    !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
+		    !test_bit(DF_NO_RELOGIN, &ddb_entry->flags) &&
+		    !test_bit(DF_ISNS_DISCOVERED, &ddb_entry->flags)) {
+			/*
+			 * This triggers a relogin.  After the relogin_timer
+			 * expires, the relogin gets scheduled.	 We must wait a
+			 * minimum amount of time since receiving an 0x8014 AEN
+			 * with failed device_state or a logout response before
+			 * we can issue another relogin.
+			 */
+			/* Firmware padds this timeout: (time2wait +1).
+			 * Driver retry to login should be longer than F/W.
+			 * Otherwise F/W will fail
+			 * set_ddb() mbx cmd with 0x4005 since it still
+			 * counting down its time2wait.
+			 */
+			atomic_set(&ddb_entry->relogin_timer, 0);
+			atomic_set(&ddb_entry->retry_relogin_timer,
+				   ddb_entry->default_time2wait + 4);
+		}
+	}
+
+	return QLA_SUCCESS;
+}
+
+/**************************************************************************
+ * qla4xxx_login_device
+ *	This routine is called by the login IOCTL to log in the specified
+ *	device.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *	fw_ddb_index - Index of the device to login
+ *	connection_id - Connection ID of the device to login
+ *
+ * Returns:
+ *	QLA_SUCCESS - Successfully logged in device
+ *	QLA_ERROR   - Failed to login device
+ **************************************************************************/
+int qla4xxx_login_device(struct scsi_qla_host *ha, uint16_t fw_ddb_index,
+			 uint16_t connection_id)
+{
+	struct ddb_entry * ddb_entry;
+	int status = QLA_ERROR;
+
+	ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index);
+	if (ddb_entry == NULL)
+		goto exit_login_device;
+
+	if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, NULL, 0, NULL, NULL,
+				    &ddb_entry->fw_ddb_device_state, NULL,
+				    NULL, NULL) == QLA_ERROR)
+		goto exit_login_device;
+
+	if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
+		status = QLA_SUCCESS;
+		goto exit_login_device;
+	}
+
+	if (qla4xxx_conn_close_sess_logout(ha, fw_ddb_index, connection_id,
+					   LOGOUT_OPTION_RELOGIN)
+	    != QLA_SUCCESS)
+		goto exit_login_device;
+
+	status = QLA_SUCCESS;
+
+exit_login_device:
+	return status;
+}
+
+/**************************************************************************
+ * qla4xxx_logout_device
+ *	This support routine is called by the logout IOCTL to log out
+ *	the specified device.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *	fw_ddb_index - Index of the device to logout
+ *	connection_id - Connection ID of the device to logout
+ *
+ * Returns:
+ *	QLA_SUCCESS - Successfully logged out device
+ *	QLA_ERROR   - Failed to logout device
+ **************************************************************************/
+int qla4xxx_logout_device(struct scsi_qla_host *ha, uint16_t fw_ddb_index,
+			  uint16_t connection_id)
+{
+	int status = QLA_ERROR;
+	struct ddb_entry * ddb_entry;
+	uint32_t old_fw_ddb_device_state;
+
+	ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index);
+	if (ddb_entry == NULL)
+		goto exit_logout_device;
+
+	if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, NULL, 0, NULL, NULL,
+				    &old_fw_ddb_device_state, NULL, NULL,
+				    NULL) != QLA_SUCCESS)
+		goto exit_logout_device;
+
+	set_bit(DF_NO_RELOGIN, &ddb_entry->flags);
+	if (qla4xxx_conn_close_sess_logout(ha, fw_ddb_index, connection_id,
+					   LOGOUT_OPTION_CLOSE_SESSION)
+	    != QLA_SUCCESS)
+		goto exit_logout_device;
+
+	status = QLA_SUCCESS;
+
+exit_logout_device:
+	return status;
+}
+
+/*
+ * qla4xxx_delete_device
+ *	This routine is called by the logout IOCTL to delete the specified
+ *	device.	 Send the LOGOUT and DELETE_DDB commands for the specified
+ *	target, even if it's not in our internal database.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *	fw_ddb_index - Index of the device to delete
+ *	connection_id - Connection ID of the device to delete
+ *
+ * Returns:
+ *	QLA_SUCCESS - Successfully deleted device
+ *	QLA_ERROR   - Failed to delete device
+ */
+int qla4xxx_delete_device(struct scsi_qla_host *ha, uint16_t fw_ddb_index,
+			  uint16_t connection_id)
+{
+	int status = QLA_ERROR;
+	uint32_t fw_ddb_device_state = 0xFFFF;
+	u_long wait_count;
+	struct ddb_entry * ddb_entry;
+
+	/* If the device is in our internal tables, set the NO_RELOGIN bit. */
+	ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index);
+	if (ddb_entry != NULL)
+		set_bit(DF_NO_RELOGIN, &ddb_entry->flags);
+
+	/*
+	 * If the device state is already one that we can delete, bypass the
+	 * logout command.
+	 */
+	qla4xxx_get_fwddb_entry(ha, fw_ddb_index, NULL, 0, NULL, NULL,
+				&fw_ddb_device_state, NULL, NULL, NULL);
+	if (fw_ddb_device_state == DDB_DS_UNASSIGNED ||
+	    fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE ||
+	    fw_ddb_device_state == DDB_DS_SESSION_FAILED)
+		goto delete_ddb;
+
+	/* First logout index */
+	if (qla4xxx_conn_close_sess_logout(ha, fw_ddb_index, connection_id,
+					   LOGOUT_OPTION_CLOSE_SESSION) !=
+	    QLA_SUCCESS) {
+		DEBUG2(printk("scsi%ld: %s: LOGOUT_OPTION_CLOSE_SESSION "
+			      "failed index [%d]\n", ha->host_no, __func__,
+			      fw_ddb_index));
+		goto exit_delete_ddb;
+	}
+
+	/* Wait enough time to complete logout */
+	wait_count = jiffies + LOGOUT_TOV * HZ;
+	while (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, NULL, 0, NULL, NULL,
+				       &fw_ddb_device_state, NULL, NULL, NULL)
+	       == QLA_SUCCESS) {
+		if (time_after_eq(jiffies, wait_count))
+			goto exit_delete_ddb;
+		if (fw_ddb_device_state == DDB_DS_UNASSIGNED ||
+		    fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE ||
+		    fw_ddb_device_state == DDB_DS_SESSION_FAILED)
+			break;
+		udelay(50);
+	}
+
+delete_ddb:
+	/* Now delete index */
+	if (qla4xxx_clear_database_entry(ha, fw_ddb_index) == QLA_SUCCESS) {
+		status = QLA_SUCCESS;
+
+		if (!ddb_entry)
+			goto exit_delete_ddb;
+
+		atomic_set(&ddb_entry->state, DDB_STATE_DEAD);
+		DEBUG(printk("scsi%ld: %s: removing index %d.\n", ha->host_no,
+			     __func__, fw_ddb_index));
+		ha->fw_ddb_index_map[fw_ddb_index] =
+			(struct ddb_entry *)INVALID_ENTRY;
+	}
+
+exit_delete_ddb:
+	return status;
+
+}

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new file mode 100644
index 0000000..a72256c
@@ -0,0 +1,989 @@
+/*
+ * QLogic iSCSI HBA Driver
+ * Copyright (c)  2003-2006 QLogic Corporation
+ *
+ * See LICENSE.qla4xxx for copyright and licensing details.
+ */
+
+#include "ql4_def.h"
+
+/**
+ * qla2x00_process_completed_request() - Process a Fast Post response.
+ * @ha: SCSI driver HA context
+ * @index: SRB index
+ */
+static void qla4xxx_process_completed_request(struct scsi_qla_host *ha,
+					      uint32_t index)
+{
+	struct srb *srb;
+
+	srb = del_from_active_array(ha, index);
+	if (srb) {
+		/* Save ISP completion status */
+		srb->cmd->result = DID_OK << 16;
+		qla4xxx_srb_compl(ha, srb);
+	} else {
+		DEBUG2(printk("scsi%ld: Invalid ISP SCSI completion handle = "
+			      "%d\n", ha->host_no, index));
+		set_bit(DPC_RESET_HA, &ha->dpc_flags);
+	}
+}
+
+/**************************************************************************
+ * qla4xxx_status_entry
+ *	This routine processes Status IOCBs
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *	sts_entry - Pointer to status entry structure.
+ *
+ * Returns:
+ *	None
+ *
+ * Context:
+ *	Interrupt context.
+ **************************************************************************/
+static void qla4xxx_status_entry(struct scsi_qla_host *ha,
+				 struct status_entry *sts_entry)
+{
+	uint8_t scsi_status;
+	struct scsi_cmnd *cmd;
+	struct srb *srb;
+	struct ddb_entry *ddb_entry;
+	uint32_t residual;
+	uint16_t sensebytecnt;
+
+	if (sts_entry->completionStatus == SCS_COMPLETE &&
+	    sts_entry->scsiStatus == 0) {
+		qla4xxx_process_completed_request(ha,
+						  le32_to_cpu(sts_entry->
+							      handle));
+		return;
+	}
+
+	srb = del_from_active_array(ha, le32_to_cpu(sts_entry->handle));
+	if (!srb) {
+		/* FIXMEdg: Don't we need to reset ISP in this case??? */
+		DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Status Entry invalid "
+			      "handle 0x%x, sp=%p. This cmd may have already "
+			      "been completed.\n", ha->host_no, __func__,
+			      le32_to_cpu(sts_entry->handle), srb));
+	}
+
+	cmd = srb->cmd;
+	if (cmd == NULL) {
+		DEBUG2(printk("scsi%ld: %s: Command already returned back to "
+			      "OS pkt->handle=%d srb=%p srb->state:%d\n",
+			      ha->host_no, __func__, sts_entry->handle,
+			      srb, srb->state));
+		ql4_printk(KERN_WARNING, ha,
+			   "Command is NULL: already returned to OS "
+			   "(srb=%p)\n", srb);
+		return;
+	}
+
+	ddb_entry = srb->ddb;
+	if (ddb_entry == NULL) {
+		cmd->result = DID_NO_CONNECT << 16;
+		goto status_entry_exit;
+	}
+
+	residual = le32_to_cpu(sts_entry->residualByteCnt);
+
+	/* Translate ISP error to a Linux SCSI error. */
+	scsi_status = sts_entry->scsiStatus;
+	switch (sts_entry->completionStatus) {
+	case SCS_COMPLETE:
+		if (scsi_status == 0) {
+			cmd->result = DID_OK << 16;
+			break;
+		}
+
+		if (sts_entry->iscsiFlags &
+		    (ISCSI_FLAG_RESIDUAL_OVER|ISCSI_FLAG_RESIDUAL_UNDER))
+			cmd->resid = residual;
+
+		cmd->result = DID_OK << 16 | scsi_status;
+
+		if (scsi_status != SCSI_CHECK_CONDITION)
+			break;
+
+		/* Copy Sense Data into sense buffer. */
+		memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer));
+
+		sensebytecnt = le16_to_cpu(sts_entry->senseDataByteCnt);
+		if (sensebytecnt == 0)
+			break;
+
+		memcpy(cmd->sense_buffer, sts_entry->senseData,
+		       min(sensebytecnt,
+			   (uint16_t) sizeof(cmd->sense_buffer)));
+
+		DEBUG2(printk("scsi%ld:%d:%d:%d: %s: sense key = %x, "
+			      "ASC/ASCQ = %02x/%02x\n", ha->host_no,
+			      cmd->device->channel, cmd->device->id,
+			      cmd->device->lun, __func__,
+			      sts_entry->senseData[2] & 0x0f,
+			      sts_entry->senseData[12],
+			      sts_entry->senseData[13]));
+
+		srb->flags |= SRB_GOT_SENSE;
+		break;
+
+	case SCS_INCOMPLETE:
+		/* Always set the status to DID_ERROR, since
+		 * all conditions result in that status anyway */
+		cmd->result = DID_ERROR << 16;
+		break;
+
+	case SCS_RESET_OCCURRED:
+		DEBUG2(printk("scsi%ld:%d:%d:%d: %s: Device RESET occurred\n",
+			      ha->host_no, cmd->device->channel,
+			      cmd->device->id, cmd->device->lun, __func__));
+
+		cmd->result = DID_RESET << 16;
+		break;
+
+	case SCS_ABORTED:
+		DEBUG2(printk("scsi%ld:%d:%d:%d: %s: Abort occurred\n",
+			      ha->host_no, cmd->device->channel,
+			      cmd->device->id, cmd->device->lun, __func__));
+
+		cmd->result = DID_RESET << 16;
+		break;
+
+	case SCS_TIMEOUT:
+		DEBUG2(printk(KERN_INFO "scsi%ld:%d:%d:%d: Timeout\n",
+			      ha->host_no, cmd->device->channel,
+			      cmd->device->id, cmd->device->lun));
+
+		cmd->result = DID_BUS_BUSY << 16;
+
+		/*
+		 * Mark device missing so that we won't continue to send
+		 * I/O to this device.	We should get a ddb state change
+		 * AEN soon.
+		 */
+		if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE)
+			qla4xxx_mark_device_missing(ha, ddb_entry);
+		break;
+
+	case SCS_DATA_UNDERRUN:
+	case SCS_DATA_OVERRUN:
+		if (sts_entry->iscsiFlags & ISCSI_FLAG_RESIDUAL_OVER) {
+			DEBUG2(printk("scsi%ld:%d:%d:%d: %s: " "Data overrun, "
+				      "residual = 0x%x\n", ha->host_no,
+				      cmd->device->channel, cmd->device->id,
+				      cmd->device->lun, __func__, residual));
+
+			cmd->result = DID_ERROR << 16;
+			break;
+		}
+
+		if ((sts_entry->iscsiFlags & ISCSI_FLAG_RESIDUAL_UNDER) == 0) {
+			/*
+			 * Firmware detected a SCSI transport underrun
+			 * condition
+			 */
+			cmd->resid = residual;
+			DEBUG2(printk("scsi%ld:%d:%d:%d: %s: UNDERRUN status "
+				      "detected, xferlen = 0x%x, residual = "
+				      "0x%x\n",
+				      ha->host_no, cmd->device->channel,
+				      cmd->device->id,
+				      cmd->device->lun, __func__,
+				      cmd->request_bufflen,
+				      residual));
+		}
+
+		/*
+		 * If there is scsi_status, it takes precedense over
+		 * underflow condition.
+		 */
+		if (scsi_status != 0) {
+			cmd->result = DID_OK << 16 | scsi_status;
+
+			if (scsi_status != SCSI_CHECK_CONDITION)
+				break;
+
+			/* Copy Sense Data into sense buffer. */
+			memset(cmd->sense_buffer, 0,
+			       sizeof(cmd->sense_buffer));
+
+			sensebytecnt =
+				le16_to_cpu(sts_entry->senseDataByteCnt);
+			if (sensebytecnt == 0)
+				break;
+
+			memcpy(cmd->sense_buffer, sts_entry->senseData,
+			       min(sensebytecnt,
+				   (uint16_t) sizeof(cmd->sense_buffer)));
+
+			DEBUG2(printk("scsi%ld:%d:%d:%d: %s: sense key = %x, "
+				      "ASC/ASCQ = %02x/%02x\n", ha->host_no,
+				      cmd->device->channel, cmd->device->id,
+				      cmd->device->lun, __func__,
+				      sts_entry->senseData[2] & 0x0f,
+				      sts_entry->senseData[12],
+				      sts_entry->senseData[13]));
+		} else {
+			/*
+			 * If RISC reports underrun and target does not
+			 * report it then we must have a lost frame, so
+			 * tell upper layer to retry it by reporting a
+			 * bus busy.
+			 */
+			if ((sts_entry->iscsiFlags &
+			     ISCSI_FLAG_RESIDUAL_UNDER) == 0) {
+				cmd->result = DID_BUS_BUSY << 16;
+			} else if ((cmd->request_bufflen - residual) <
+				   cmd->underflow) {
+				/*
+				 * Handle mid-layer underflow???
+				 *
+				 * For kernels less than 2.4, the driver must
+				 * return an error if an underflow is detected.
+				 * For kernels equal-to and above 2.4, the
+				 * mid-layer will appearantly handle the
+				 * underflow by detecting the residual count --
+				 * unfortunately, we do not see where this is
+				 * actually being done.	 In the interim, we
+				 * will return DID_ERROR.
+				 */
+				DEBUG2(printk("scsi%ld:%d:%d:%d: %s: "
+					      "Mid-layer Data underrun, "
+					      "xferlen = 0x%x, "
+					      "residual = 0x%x\n", ha->host_no,
+					      cmd->device->channel,
+					      cmd->device->id,
+					      cmd->device->lun, __func__,
+					      cmd->request_bufflen, residual));
+
+				cmd->result = DID_ERROR << 16;
+			} else {
+				cmd->result = DID_OK << 16;
+			}
+		}
+		break;
+
+	case SCS_DEVICE_LOGGED_OUT:
+	case SCS_DEVICE_UNAVAILABLE:
+		/*
+		 * Mark device missing so that we won't continue to
+		 * send I/O to this device.  We should get a ddb
+		 * state change AEN soon.
+		 */
+		if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE)
+			qla4xxx_mark_device_missing(ha, ddb_entry);
+
+		if ((srb->flags & SRB_TAPE) ||
+		    atomic_read(&ddb_entry->state) == DDB_STATE_MISSING)
+			cmd->result = DID_BUS_BUSY << 16;
+		else
+			cmd->result = DID_ERROR << 16;
+		break;
+
+	case SCS_QUEUE_FULL:
+		/*
+		 * SCSI Mid-Layer handles device queue full
+		 */
+		cmd->result = DID_OK << 16 | sts_entry->scsiStatus;
+		DEBUG2(printk("scsi%ld:%d:%d: %s: QUEUE FULL detected "
+			      "compl=%02x, scsi=%02x, state=%02x, iFlags=%02x,"
+			      " iResp=%02x\n", ha->host_no, cmd->device->id,
+			      cmd->device->lun, __func__,
+			      sts_entry->completionStatus,
+			      sts_entry->scsiStatus, sts_entry->state_flags,
+			      sts_entry->iscsiFlags,
+			      sts_entry->iscsiResponse));
+		break;
+
+	default:
+		cmd->result = DID_ERROR << 16;
+		break;
+	}
+
+status_entry_exit:
+
+	/* complete the request */
+	srb->cc_stat = sts_entry->completionStatus;
+	qla4xxx_srb_compl(ha, srb);
+}
+
+/**************************************************************************
+ * qla4xxx_process_response_queue
+ *	This routine handles the Response Queue Completion.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *
+ * Output:
+ *	None
+ *
+ * Remarks:
+ *	hardware_lock locked upon entry
+ *
+ * Returns:
+ *	QLA_SUCCESS - Successfully processed response queue
+ *	QLA_ERROR   - Failed to process response queue
+ *
+ * Context:
+ *	Interrupt context.
+ **************************************************************************/
+static void qla4xxx_process_response_queue(struct scsi_qla_host * ha)
+{
+	uint32_t count = 0;
+	struct srb *srb = NULL;
+	struct status_entry *sts_entry;
+
+	/* Process all responses from response queue */
+	while ((ha->response_in =
+		(uint16_t)le32_to_cpu(ha->shadow_regs->rsp_q_in)) !=
+	       ha->response_out) {
+		sts_entry = (struct status_entry *) ha->response_ptr;
+		count++;
+
+		/* Advance pointers for next entry */
+		if (ha->response_out == (RESPONSE_QUEUE_DEPTH - 1)) {
+			ha->response_out = 0;
+			ha->response_ptr = ha->response_ring;
+		} else {
+			ha->response_out++;
+			ha->response_ptr++;
+		}
+
+		/* process entry */
+		switch (sts_entry->hdr.entryType) {
+		case ET_STATUS:
+			/*
+			 * Common status - Single completion posted in single
+			 * IOSB.
+			 */
+			qla4xxx_status_entry(ha, sts_entry);
+			break;
+
+		case ET_PASSTHRU_STATUS:
+			qla4xxx_isns_process_response(ha,
+						      (struct
+						       passthru_status *)
+						      sts_entry);
+			break;
+
+		case ET_STATUS_CONTINUATION:
+			/* Just throw away the status continuation entries */
+			DEBUG2(printk("scsi%ld: %s: Status Continuation entry "
+				      "- ignoring\n", ha->host_no, __func__));
+			break;
+
+		case ET_COMMAND:
+			/* ISP device queue is full. Command not
+			 * accepted by ISP.  Queue command for
+			 * later */
+
+			srb = del_from_active_array(ha,
+						    le32_to_cpu(sts_entry->
+								handle));
+			if (srb == NULL)
+				goto exit_prq_invalid_handle;
+
+			DEBUG2(printk("scsi%ld: %s: FW device queue full, "
+				      "srb %p\n", ha->host_no, __func__, srb));
+
+			/* ETRY normally by sending it back with
+			 * DID_BUS_BUSY */
+			srb->cmd->result = DID_BUS_BUSY << 16;
+			qla4xxx_srb_compl(ha, srb);
+			break;
+
+		case ET_CONTINUE:
+			/* Just throw away the continuation entries */
+			DEBUG2(printk("scsi%ld: %s: Continuation entry - "
+				      "ignoring\n", ha->host_no, __func__));
+			break;
+
+		default:
+			/*
+			 * Invalid entry in response queue, reset RISC
+			 * firmware.
+			 */
+			DEBUG2(printk("scsi%ld: %s: Invalid entry %x in "
+				      "response queue \n", ha->host_no,
+				      __func__,
+				      sts_entry->hdr.entryType));
+			goto exit_prq_error;
+		}
+	}
+
+	/*
+	 * Done with responses, update the ISP For QLA4010, this also clears
+	 * the interrupt.
+	 */
+	writel(ha->response_out, &ha->reg->rsp_q_out);
+	readl(&ha->reg->rsp_q_out);
+
+	return;
+
+exit_prq_invalid_handle:
+	DEBUG2(printk("scsi%ld: %s: Invalid handle(srb)=%p type=%x IOCS=%x\n",
+		      ha->host_no, __func__, srb, sts_entry->hdr.entryType,
+		      sts_entry->completionStatus));
+
+exit_prq_error:
+	writel(ha->response_out, &ha->reg->rsp_q_out);
+	readl(&ha->reg->rsp_q_out);
+
+	set_bit(DPC_RESET_HA, &ha->dpc_flags);
+}
+
+/**************************************************************************
+ * qla4xxx_isr_decode_mailbox
+ *	This routine decodes the mailbox status during the ISR.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *	mailbox_status - Mailbox status.
+ *
+ * Remarks:
+ *	hardware_lock locked upon entry
+ *
+ * Returns:
+ *	None.
+ *
+ * Context:
+ *	Interrupt context.
+ **************************************************************************/
+static void qla4xxx_isr_decode_mailbox(struct scsi_qla_host * ha,
+				       uint32_t mbox_status)
+{
+	int i;
+	static uint32_t	  mbox_sts[MBOX_REG_COUNT];
+
+	if ((mbox_status == MBOX_STS_BUSY) ||
+	    (mbox_status == MBOX_STS_INTERMEDIATE_COMPLETION) ||
+	    (mbox_status >> 12 == MBOX_COMPLETION_STATUS)) {
+		ha->mbox_status[0] = mbox_status;
+
+		if (test_bit(AF_MBOX_COMMAND, &ha->flags)) {
+			/*
+			 * Copy all mailbox registers to a temporary
+			 * location and set mailbox command done flag
+			 */
+			for (i = 1; i < ha->mbox_status_count; i++)
+				ha->mbox_status[i] =
+					readl(&ha->reg->mailbox[i]);
+
+			set_bit(AF_MBOX_COMMAND_DONE, &ha->flags);
+			wake_up(&ha->mailbox_wait_queue);
+		}
+	} else if (mbox_status >> 12 == MBOX_ASYNC_EVENT_STATUS) {
+		/* Immediately process the AENs that don't require much work.
+		 * Only queue the database_changed AENs */
+		switch (mbox_status) {
+		case MBOX_ASTS_SYSTEM_ERROR:
+			/* Log Mailbox registers */
+			if (ql4xdontresethba) {
+				DEBUG2(printk("%s:Dont Reset HBA\n",
+					      __func__));
+			} else {
+				set_bit(AF_GET_CRASH_RECORD, &ha->flags);
+				set_bit(DPC_RESET_HA, &ha->dpc_flags);
+			}
+			break;
+
+		case MBOX_ASTS_REQUEST_TRANSFER_ERROR:
+		case MBOX_ASTS_RESPONSE_TRANSFER_ERROR:
+		case MBOX_ASTS_NVRAM_INVALID:
+		case MBOX_ASTS_IP_ADDRESS_CHANGED:
+		case MBOX_ASTS_DHCP_LEASE_EXPIRED:
+			DEBUG2(printk("scsi%ld: AEN %04x, ERROR Status, "
+				      "Reset HA\n", ha->host_no, mbox_status));
+			set_bit(DPC_RESET_HA, &ha->dpc_flags);
+			break;
+
+		case MBOX_ASTS_LINK_UP:
+			DEBUG2(printk("scsi%ld: AEN %04x Adapter LINK UP\n",
+				      ha->host_no, mbox_status));
+			set_bit(AF_LINK_UP, &ha->flags);
+			break;
+
+		case MBOX_ASTS_LINK_DOWN:
+			DEBUG2(printk("scsi%ld: AEN %04x Adapter LINK DOWN\n",
+				      ha->host_no, mbox_status));
+			clear_bit(AF_LINK_UP, &ha->flags);
+			break;
+
+		case MBOX_ASTS_HEARTBEAT:
+			ha->seconds_since_last_heartbeat = 0;
+			break;
+
+		case MBOX_ASTS_DHCP_LEASE_ACQUIRED:
+			DEBUG2(printk("scsi%ld: AEN %04x DHCP LEASE "
+				      "ACQUIRED\n", ha->host_no, mbox_status));
+			set_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags);
+			break;
+
+		case MBOX_ASTS_PROTOCOL_STATISTIC_ALARM:
+		case MBOX_ASTS_SCSI_COMMAND_PDU_REJECTED: /* Target
+							   * mode
+							   * only */
+		case MBOX_ASTS_UNSOLICITED_PDU_RECEIVED:  /* Connection mode */
+		case MBOX_ASTS_IPSEC_SYSTEM_FATAL_ERROR:
+		case MBOX_ASTS_SUBNET_STATE_CHANGE:
+			/* No action */
+			DEBUG2(printk("scsi%ld: AEN %04x\n", ha->host_no,
+				      mbox_status));
+			break;
+
+		case MBOX_ASTS_MAC_ADDRESS_CHANGED:
+		case MBOX_ASTS_DNS:
+			/* No action */
+			DEBUG2(printk(KERN_INFO "scsi%ld: AEN %04x, "
+				      "mbox_sts[1]=%04x, mbox_sts[2]=%04x\n",
+				      ha->host_no, mbox_status,
+				      readl(&ha->reg->mailbox[1]),
+				      readl(&ha->reg->mailbox[2])));
+			break;
+
+		case MBOX_ASTS_SELF_TEST_FAILED:
+		case MBOX_ASTS_LOGIN_FAILED:
+			/* No action */
+			DEBUG2(printk("scsi%ld: AEN %04x, mbox_sts[1]=%04x, "
+				      "mbox_sts[2]=%04x, mbox_sts[3]=%04x\n",
+				      ha->host_no, mbox_status,
+				      readl(&ha->reg->mailbox[1]),
+				      readl(&ha->reg->mailbox[2]),
+				      readl(&ha->reg->mailbox[3])));
+			break;
+
+		case MBOX_ASTS_DATABASE_CHANGED:
+			/* Queue AEN information and process it in the DPC
+			 * routine */
+			if (ha->aen_q_count > 0) {
+				/* advance pointer */
+				if (ha->aen_in == (MAX_AEN_ENTRIES - 1))
+					ha->aen_in = 0;
+				else
+					ha->aen_in++;
+
+				/* decrement available counter */
+				ha->aen_q_count--;
+
+				for (i = 1; i < MBOX_AEN_REG_COUNT; i++)
+					ha->aen_q[ha->aen_in].mbox_sts[i] =
+						readl(&ha->reg->mailbox[i]);
+
+				ha->aen_q[ha->aen_in].mbox_sts[0] = mbox_status;
+
+				/* print debug message */
+				DEBUG2(printk("scsi%ld: AEN[%d] %04x queued"
+					      " mb1:0x%x mb2:0x%x mb3:0x%x mb4:0x%x\n",
+					      ha->host_no, ha->aen_in,
+					      mbox_status,
+					      ha->aen_q[ha->aen_in].mbox_sts[1],
+					      ha->aen_q[ha->aen_in].mbox_sts[2],
+					      ha->aen_q[ha->aen_in].mbox_sts[3],
+					      ha->aen_q[ha->aen_in].  mbox_sts[4]));
+
+				/* The DPC routine will process the aen */
+				set_bit(DPC_AEN, &ha->dpc_flags);
+			} else {
+				DEBUG2(printk("scsi%ld: %s: aen %04x, queue "
+					      "overflowed!  AEN LOST!!\n",
+					      ha->host_no, __func__,
+					      mbox_status));
+
+				DEBUG2(printk("scsi%ld: DUMP AEN QUEUE\n",
+					      ha->host_no));
+
+				for (i = 0; i < MAX_AEN_ENTRIES; i++) {
+					DEBUG2(printk("AEN[%d] %04x %04x %04x "
+						      "%04x\n", i,
+						      ha->aen_q[i].mbox_sts[0],
+						      ha->aen_q[i].mbox_sts[1],
+						      ha->aen_q[i].mbox_sts[2],
+						      ha->aen_q[i].mbox_sts[3]));
+				}
+			}
+			break;
+
+		case MBOX_ASTS_ISNS_UNSOLICITED_PDU_RECEIVED:
+			memset(&mbox_sts, 0, sizeof(mbox_sts));
+			mbox_sts[0] = mbox_status;
+			mbox_sts[1] = readl(&ha->reg->mailbox[1]);
+			mbox_sts[2] = readl(&ha->reg->mailbox[2]);
+			mbox_sts[3] = readl(&ha->reg->mailbox[3]);
+			mbox_sts[4] = readl(&ha->reg->mailbox[4]);
+			mbox_sts[5] = readl(&ha->reg->mailbox[5]);
+
+			if (mbox_sts[1] == ISNS_EVENT_DATA_RECEIVED) {
+				DEBUG2(printk("scsi%d: AEN %04x, mbox_sts[1]="
+					      "%04x, "
+					      "mbox_sts[2]=%04x,"
+					      "mbox_sts[3]=%04x, "
+					      "mbox_sts[4]=%04x\n",
+					      (int)ha->host_no, mbox_status,
+					      mbox_sts[1], mbox_sts[2],
+					      mbox_sts[3], mbox_sts[4]));
+
+				if (qla4xxx_isns_get_server_request(ha,
+								    mbox_sts[3],
+								    mbox_sts[2])
+				    != QLA_SUCCESS) {
+					DEBUG2(printk("scsi%d: %s: AEN %04x, "
+						      "isns_get_server_request"
+						      " FAILED!!\n",
+						      (int)ha->host_no,
+						      __func__, mbox_status));
+				}
+			}
+			else if (mbox_sts[1] == ISNS_EVENT_CONNECTION_OPENED) {
+				DEBUG2(printk("scsi%d: AEN %04x, iSNS Service "
+					      "Connection Opened!\n"
+					      "mbox_sts[2]=%08x, mbox_sts[3]="
+					      "%08x, "
+					      "mbox_sts[4]=%08x, "
+					      "mbox_sts[5]=%08x\n",
+					      (int)ha->host_no, mbox_status,
+					      mbox_sts[2], mbox_sts[3],
+					      mbox_sts[4], mbox_sts[5]));
+
+				ha->isns_rsp.conn_id =
+					(uint16_t)(mbox_sts[2] & 0xFFFF);
+				ha->isns_rsp.scn_conn_id =
+					(uint16_t)(mbox_sts[3] & 0xFFFF);
+				ha->isns_rsp.esi_conn_id =
+					(uint16_t)(mbox_sts[4] & 0xFFFF);
+
+				ha->isns_rsp.conn_port =
+					(uint16_t)(mbox_sts[2] >> 16);
+				ha->isns_rsp.scn_port =
+					(uint16_t)(mbox_sts[3] >> 16);
+				ha->isns_rsp.esi_port =
+					(uint16_t)(mbox_sts[4] >> 16);
+
+				set_bit(AF_ISNS_CMD_DONE, &ha->flags);
+
+			}
+			else if (mbox_sts[1] == ISNS_EVENT_CONNECTION_FAILED) {
+				DEBUG2(printk("scsi%d: AEN %04x, iSNS Service"
+					      " Connection FAILED! "
+					      "reason %04x\n",
+					      (int)ha->host_no, mbox_status,
+					      mbox_sts[2]));
+			}
+			break;
+		default:
+			DEBUG2(printk(KERN_WARNING
+				      "scsi%ld: AEN %04x UNKNOWN\n",
+				      ha->host_no, mbox_status));
+			break;
+		}
+	} else {
+		DEBUG2(printk("scsi%ld: Unknown mailbox status %08X\n",
+			      ha->host_no, mbox_status));
+
+		ha->mbox_status[0] = mbox_status;
+	}
+}
+
+/**************************************************************************
+ * qla4xxx_interrupt_service_routine
+ *	This routine services the interrupt
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *
+ * Remarks:
+ *	hardware_lock locked upon entry
+ *
+ * Returns:
+ *	QLA_SUCCESS - success, An interrupt was found and processed
+ *	QLA_ERROR - failure, The adapter was not interrupting
+ *
+ * Context:
+ *	Interrupt context.
+ **************************************************************************/
+void qla4xxx_interrupt_service_routine(struct scsi_qla_host * ha,
+				       uint32_t intr_status)
+{
+	/* Process response queue interrupt. */
+	if (intr_status & CSR_SCSI_COMPLETION_INTR)
+		qla4xxx_process_response_queue(ha);
+
+	/* Process mailbox/asynch event	 interrupt.*/
+	if (intr_status & CSR_SCSI_PROCESSOR_INTR) {
+		qla4xxx_isr_decode_mailbox(ha,
+					   readl(&ha->reg->mailbox[0]));
+
+		/* Clear Mailbox Interrupt */
+		writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
+		       &ha->reg->ctrl_status);
+		readl(&ha->reg->ctrl_status);
+	}
+}
+
+/**************************************************************************
+ * qla4xxx_intr_handler
+ *	This routine handles the H/W interrupt
+ *
+ * Input:
+ *	irq - Unused
+ *	dev_id - Pointer to host adapter structure
+ *	regs - Unused
+ *
+ * Returns:
+ *	None
+ *
+ * Context:
+ *	Interrupt context.
+ **************************************************************************/
+irqreturn_t qla4xxx_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
+{
+	struct scsi_qla_host *ha;
+	uint32_t intr_status;
+	unsigned long flags = 0;
+	uint8_t reqs_count = 0;
+
+	ha = (struct scsi_qla_host *) dev_id;
+	if (!ha) {
+		DEBUG2(printk(KERN_INFO
+			      "qla4xxx: Interrupt with NULL host ptr\n"));
+		return IRQ_NONE;
+	}
+
+	spin_lock_irqsave(&ha->hardware_lock, flags);
+
+	/*
+	 * Repeatedly service interrupts up to a maximum of
+	 * MAX_REQS_SERVICED_PER_INTR
+	 */
+	while (1) {
+		/*
+		 * Read interrupt status
+		 */
+		if (le32_to_cpu(ha->shadow_regs->rsp_q_in) !=
+		    ha->response_out)
+			intr_status = CSR_SCSI_COMPLETION_INTR;
+		else
+			intr_status = readl(&ha->reg->ctrl_status);
+
+		if ((intr_status &
+		     (CSR_SCSI_RESET_INTR|CSR_FATAL_ERROR|INTR_PENDING)) ==
+		    0) {
+			if (reqs_count == 0)
+				ha->spurious_int_count++;
+			break;
+		}
+
+		if (intr_status & CSR_FATAL_ERROR) {
+			DEBUG2(printk(KERN_INFO "scsi%ld: Fatal Error, "
+				      "Status 0x%04x\n", ha->host_no,
+				      readl(isp_port_error_status (ha))));
+
+			/* Issue Soft Reset to clear this error condition.
+			 * This will prevent the RISC from repeatedly
+			 * interrupting the driver; thus, allowing the DPC to
+			 * get scheduled to continue error recovery.
+			 * NOTE: Disabling RISC interrupts does not work in
+			 * this case, as CSR_FATAL_ERROR overrides
+			 * CSR_SCSI_INTR_ENABLE */
+			if ((readl(&ha->reg->ctrl_status) &
+			     CSR_SCSI_RESET_INTR) == 0) {
+				writel(set_rmask(CSR_SOFT_RESET),
+				       &ha->reg->ctrl_status);
+				readl(&ha->reg->ctrl_status);
+			}
+
+			writel(set_rmask(CSR_FATAL_ERROR),
+			       &ha->reg->ctrl_status);
+			readl(&ha->reg->ctrl_status);
+
+			__qla4xxx_disable_intrs(ha);
+
+			set_bit(DPC_RESET_HA, &ha->dpc_flags);
+
+			break;
+		} else if (intr_status & CSR_SCSI_RESET_INTR) {
+			clear_bit(AF_ONLINE, &ha->flags);
+			__qla4xxx_disable_intrs(ha);
+
+			writel(set_rmask(CSR_SCSI_RESET_INTR),
+			       &ha->reg->ctrl_status);
+			readl(&ha->reg->ctrl_status);
+
+			set_bit(DPC_RESET_HA_INTR, &ha->dpc_flags);
+
+			break;
+		} else if (intr_status & INTR_PENDING) {
+			qla4xxx_interrupt_service_routine(ha, intr_status);
+			ha->total_io_count++;
+			if (++reqs_count == MAX_REQS_SERVICED_PER_INTR)
+				break;
+
+			intr_status = 0;
+		}
+	}
+
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+	return IRQ_HANDLED;
+}
+
+/**************************************************************************
+ * qla4xxx_process_aen
+ *	This routine processes Asynchronous Events received from the firmware.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *	process_aen -
+ *		PROCESS_ALL_AENS	 0
+ *		FLUSH_DDB_CHANGED_AENS	 1
+ *		RELOGIN_DDB_CHANGED_AENS 2
+ *
+ * Returns:
+ *	None
+ **************************************************************************/
+void qla4xxx_process_aen(struct scsi_qla_host * ha, uint8_t process_aen)
+{
+	uint32_t mbox_sts[MBOX_AEN_REG_COUNT];
+	struct aen *aen;
+	int i;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ha->hardware_lock, flags);
+	while (ha->aen_out != ha->aen_in) {
+		/* Advance pointers for next entry */
+		if (ha->aen_out == (MAX_AEN_ENTRIES - 1))
+			ha->aen_out = 0;
+		else
+			ha->aen_out++;
+
+		ha->aen_q_count++;
+		aen = &ha->aen_q[ha->aen_out];
+
+		/* copy aen information to local structure */
+		for (i = 0; i < MBOX_AEN_REG_COUNT; i++)
+			mbox_sts[i] = aen->mbox_sts[i];
+
+		spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+		DEBUG(printk("scsi%ld: AEN[%d] %04x, index [%d] state=%04x "
+			     "mod=%x conerr=%08x \n", ha->host_no, ha->aen_out,
+			     mbox_sts[0], mbox_sts[2], mbox_sts[3],
+			     mbox_sts[1], mbox_sts[4]));
+
+		switch (mbox_sts[0]) {
+		case MBOX_ASTS_DATABASE_CHANGED:
+			if (process_aen == FLUSH_DDB_CHANGED_AENS) {
+				DEBUG2(printk("scsi%ld: AEN[%d] %04x, index "
+					      "[%d] state=%04x FLUSHED!\n",
+					      ha->host_no, ha->aen_out,
+					      mbox_sts[0], mbox_sts[2],
+					      mbox_sts[3]));
+				break;
+			} else if (process_aen == RELOGIN_DDB_CHANGED_AENS) {
+				/* for use during init time, we only want to
+				 * relogin non-active ddbs */
+				struct ddb_entry *ddb_entry;
+
+				ddb_entry =
+					/* FIXME: name length? */
+					qla4xxx_lookup_ddb_by_fw_index(ha,
+								       mbox_sts[2]);
+				if (!ddb_entry)
+					break;
+
+				ddb_entry->dev_scan_wait_to_complete_relogin =
+					0;
+				ddb_entry->dev_scan_wait_to_start_relogin =
+					jiffies +
+					((ddb_entry->default_time2wait +
+					  4) * HZ);
+
+				DEBUG2(printk("scsi%ld: ddb index [%d] initate"
+					      " RELOGIN after %d seconds\n",
+					      ha->host_no,
+					      ddb_entry->fw_ddb_index,
+					      ddb_entry->default_time2wait +
+					      4));
+				break;
+			}
+
+			if (mbox_sts[1] == 0) {	/* Global DB change. */
+				qla4xxx_reinitialize_ddb_list(ha);
+			} else if (mbox_sts[1] == 1) {	/* Specific device. */
+				qla4xxx_process_ddb_changed(ha, mbox_sts[2],
+							    mbox_sts[3]);
+			}
+			break;
+		}
+		spin_lock_irqsave(&ha->hardware_lock, flags);
+	}
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+}
+
+uint8_t qla4xxx_isns_process_response(struct scsi_qla_host *ha,
+				      struct passthru_status *sts_entry)
+{
+	uint32_t handle = le32_to_cpu(sts_entry->handle);
+	uint32_t inResidual = le32_to_cpu(sts_entry->inResidual);
+	struct pdu_entry *pdu_entry = (struct pdu_entry *) &ha->pdu_queue[
+		iocb_isns_pt_pdu_index(handle)];
+	uint32_t pdu_type = iocb_isns_pt_pdu_type(handle);
+	uint8_t status = QLA_SUCCESS;
+	struct iscsi_hdr	hdr;/* dummy header */
+
+	DEBUG2(printk("qla4xxx_passthru_status_entry"));
+
+	DEBUG2(printk("scsi%d: %s to=0x%x "
+		      "IOCS=0x%02x OutResidual/Len=0x%x/0x%x "
+		      "InResidual/Len=0x%x/0x%x\n",
+		      (int)ha->host_no, __func__,
+		      le16_to_cpu(sts_entry->timeout),
+		      sts_entry->completionStatus,
+		      le32_to_cpu(sts_entry->outResidual),
+		      pdu_entry->SendBuffLen,
+		      inResidual,
+		      pdu_entry->RecvBuffLen));
+
+	if (sts_entry->completionStatus != PASSTHRU_STATUS_COMPLETE) {
+
+		qla4xxx_free_pdu(ha, pdu_entry);
+		set_bit(DPC_ISNS_RESTART, &ha->dpc_flags);
+		/* FIXME: should this set error? */
+		goto exit_pt_sts;
+	}
+
+	switch (pdu_type) {
+	case ISNS_ASYNCH_RSP_PDU:
+		qla4xxx_free_pdu(ha, pdu_entry);
+		break;
+
+	case ISNS_ASYNCH_REQ_PDU:
+	case ISNS_REQ_RSP_PDU:
+		pdu_entry->RecvBuffLen -= inResidual;
+
+		DEBUG2(printk("scsi%d: %s %s  PDU Buff=%p, PDU RecvLen=0x%X\n",
+			      (int)ha->host_no, __func__,
+			      ((pdu_type == ISNS_ASYNCH_REQ_PDU) ?
+			       "ISNS_ASYNCH_REQ_PDU":"ISNS_REQ_RSP_PDU"),
+			      pdu_entry->Buff, pdu_entry->RecvBuffLen));
+
+
+		(void)iscsi_recv_pdu(ha->isns_conn, &hdr, pdu_entry->Buff,
+				     pdu_entry->RecvBuffLen);
+
+
+		qla4xxx_free_pdu(ha, pdu_entry);
+		break;
+	default:
+		DEBUG2(printk("scsi%d: %s iSNS handle 0x%x invalid\n",
+			      (int)ha->host_no, __func__, handle));
+		status = QLA_ERROR;
+		break;
+	}
+
+exit_pt_sts:
+	return status;
+}

new file mode 100644
index 0000000..e4b9107
@@ -0,0 +1,1092 @@
+/*
+ * QLogic iSCSI HBA Driver
+ * Copyright (c)  2003-2006 QLogic Corporation
+ *
+ * See LICENSE.qla4xxx for copyright and licensing details.
+ */
+
+#include "ql4_def.h"
+
+
+/**************************************************************************
+ * qla4xxx_mailbox_command
+ *	This routine sssue mailbox commands and waits for completion.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *	inCount	 - number of mailbox registers to load.
+ *	outCount - number of mailbox registers to return.
+ *	mbx_cmd	 - data pointer for mailbox in registers.
+ *	mbx_sts	 - data pointer for mailbox out registers.
+ *
+ * Output:
+ *	mbx_sts - returned mailbox out data.
+ *
+ * Remarks:
+ *	If outCount is 0, this routine completes successfully WITHOUT waiting
+ *	for the mailbox command to complete.
+ *
+ * Returns:
+ *	QLA_SUCCESS - Mailbox command completed successfully
+ *	QLA_ERROR   - Mailbox command competed in error.
+ **************************************************************************/
+int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
+			    uint8_t outCount, uint32_t *mbx_cmd,
+			    uint32_t *mbx_sts)
+{
+	int status = QLA_ERROR;
+	uint8_t i;
+	u_long wait_count;
+	uint32_t intr_status;
+	unsigned long flags = 0;
+	DECLARE_WAITQUEUE(wait, current);
+
+	mutex_lock(&ha->mbox_sem);
+
+	/* Mailbox code active */
+	set_bit(AF_MBOX_COMMAND, &ha->flags);
+
+	/* Make sure that pointers are valid */
+	if (!mbx_cmd || !mbx_sts) {
+		DEBUG2(printk("scsi%ld: %s: Invalid mbx_cmd or mbx_sts "
+			      "pointer\n", ha->host_no, __func__));
+		goto mbox_exit;
+	}
+
+	/* To prevent overwriting mailbox registers for a command that has
+	 * not yet been serviced, check to see if a previously issued
+	 * mailbox command is interrupting.
+	 * -----------------------------------------------------------------
+	 */
+	spin_lock_irqsave(&ha->hardware_lock, flags);
+	intr_status = readl(&ha->reg->ctrl_status);
+	if (intr_status & CSR_SCSI_PROCESSOR_INTR) {
+		/* Service existing interrupt */
+		qla4xxx_interrupt_service_routine(ha, intr_status);
+		clear_bit(AF_MBOX_COMMAND_DONE, &ha->flags);
+	}
+
+	/* Send the mailbox command to the firmware */
+	ha->mbox_status_count = outCount;
+	for (i = 0; i < outCount; i++)
+		ha->mbox_status[i] = 0;
+
+	/* Load all mailbox registers, except mailbox 0. */
+	for (i = 1; i < inCount; i++)
+		writel(mbx_cmd[i], &ha->reg->mailbox[i]);
+
+	/* Wakeup firmware  */
+	writel(mbx_cmd[0], &ha->reg->mailbox[0]);
+	readl(&ha->reg->mailbox[0]);
+	writel(set_rmask(CSR_INTR_RISC), &ha->reg->ctrl_status);
+	readl(&ha->reg->ctrl_status);
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+	/* Wait for completion */
+	set_current_state(TASK_UNINTERRUPTIBLE);
+	add_wait_queue(&ha->mailbox_wait_queue, &wait);
+
+	/*
+	 * If we don't want status, don't wait for the mailbox command to
+	 * complete.  For example, MBOX_CMD_RESET_FW doesn't return status,
+	 * you must poll the inbound Interrupt Mask for completion.
+	 */
+	if (outCount == 0) {
+		status = QLA_SUCCESS;
+		set_current_state(TASK_RUNNING);
+		remove_wait_queue(&ha->mailbox_wait_queue, &wait);
+		goto mbox_exit;
+	}
+	/* Wait for command to complete */
+	wait_count = jiffies + MBOX_TOV * HZ;
+	while (test_bit(AF_MBOX_COMMAND_DONE, &ha->flags) == 0) {
+		if (time_after_eq(jiffies, wait_count))
+			break;
+
+		spin_lock_irqsave(&ha->hardware_lock, flags);
+		intr_status = readl(&ha->reg->ctrl_status);
+		if (intr_status & INTR_PENDING) {
+			/*
+			 * Service the interrupt.
+			 * The ISR will save the mailbox status registers
+			 * to a temporary storage location in the adapter
+			 * structure.
+			 */
+			ha->mbox_status_count = outCount;
+			qla4xxx_interrupt_service_routine(ha, intr_status);
+		}
+		spin_unlock_irqrestore(&ha->hardware_lock, flags);
+		mdelay(10);
+	}
+	set_current_state(TASK_RUNNING);
+	remove_wait_queue(&ha->mailbox_wait_queue, &wait);
+
+	/* Check for mailbox timeout. */
+	if (!test_bit(AF_MBOX_COMMAND_DONE, &ha->flags)) {
+		DEBUG2(printk("scsi%ld: Mailbox Cmd 0x%08X timed out ...,"
+			      " Scheduling Adapter Reset\n", ha->host_no,
+			      mbx_cmd[0]));
+		ha->mailbox_timeout_count++;
+		mbx_sts[0] = (-1);
+		set_bit(DPC_RESET_HA, &ha->dpc_flags);
+		goto mbox_exit;
+	}
+
+	/*
+	 * Copy the mailbox out registers to the caller's mailbox in/out
+	 * structure.
+	 */
+	spin_lock_irqsave(&ha->hardware_lock, flags);
+	for (i = 0; i < outCount; i++)
+		mbx_sts[i] = ha->mbox_status[i];
+
+	/* Set return status and error flags (if applicable). */
+	switch (ha->mbox_status[0]) {
+	case MBOX_STS_COMMAND_COMPLETE:
+		status = QLA_SUCCESS;
+		break;
+
+	case MBOX_STS_INTERMEDIATE_COMPLETION:
+		status = QLA_SUCCESS;
+		break;
+
+	case MBOX_STS_BUSY:
+		DEBUG2( printk("scsi%ld: %s: Cmd = %08X, ISP BUSY\n",
+			       ha->host_no, __func__, mbx_cmd[0]));
+		ha->mailbox_timeout_count++;
+		break;
+
+	default:
+		DEBUG2(printk("scsi%ld: %s: **** FAILED, cmd = %08X, "
+			      "sts = %08X ****\n", ha->host_no, __func__,
+			      mbx_cmd[0], mbx_sts[0]));
+		break;
+	}
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+mbox_exit:
+	clear_bit(AF_MBOX_COMMAND, &ha->flags);
+	clear_bit(AF_MBOX_COMMAND_DONE, &ha->flags);
+	mutex_unlock(&ha->mbox_sem);
+
+	return status;
+}
+
+
+/*
+ * qla4xxx_issue_iocb
+ *	Issue IOCB using mailbox command
+ *
+ * Input:
+ *	ha = adapter state pointer.
+ *	buffer = buffer pointer.
+ *	phys_addr = physical address of buffer.
+ *	size = size of buffer.
+ *	TARGET_QUEUE_LOCK must be released.
+ *	ADAPTER_STATE_LOCK must be released.
+ *
+ * Returns:
+ *	qla2x00 local function return status code.
+ */
+int
+qla4xxx_issue_iocb(struct scsi_qla_host * ha, void *buffer,
+		   dma_addr_t phys_addr, size_t size)
+{
+	uint32_t mbox_cmd[MBOX_REG_COUNT];
+	uint32_t mbox_sts[MBOX_REG_COUNT];
+	int status;
+
+	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+	memset(&mbox_sts, 0, sizeof(mbox_sts));
+	mbox_cmd[0] = MBOX_CMD_EXECUTE_IOCB_A64;
+	mbox_cmd[1] = 0;
+	mbox_cmd[2] = LSDW(phys_addr);
+	mbox_cmd[3] = MSDW(phys_addr);
+	status = qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]);
+	return status;
+}
+
+int qla4xxx_conn_close_sess_logout(struct scsi_qla_host * ha,
+				   uint16_t fw_ddb_index,
+				   uint16_t connection_id,
+				   uint16_t option)
+{
+	uint32_t mbox_cmd[MBOX_REG_COUNT];
+	uint32_t mbox_sts[MBOX_REG_COUNT];
+
+	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+	memset(&mbox_sts, 0, sizeof(mbox_sts));
+	mbox_cmd[0] = MBOX_CMD_CONN_CLOSE_SESS_LOGOUT;
+	mbox_cmd[1] = fw_ddb_index;
+	mbox_cmd[2] = connection_id;
+	mbox_cmd[3] = LOGOUT_OPTION_RELOGIN;
+	if (qla4xxx_mailbox_command(ha, 4, 2, &mbox_cmd[0], &mbox_sts[0]) !=
+	    QLA_SUCCESS) {
+		DEBUG2(printk("scsi%ld: %s: MBOX_CMD_CONN_CLOSE_SESS_LOGOUT "
+			      "option %04x failed sts %04X %04X",
+			      ha->host_no, __func__,
+			      option, mbox_sts[0], mbox_sts[1]));
+		if (mbox_sts[0] == 0x4005)
+			DEBUG2(printk("%s reason %04X\n", __func__,
+				      mbox_sts[1]));
+	}
+	return QLA_SUCCESS;
+}
+
+int qla4xxx_clear_database_entry(struct scsi_qla_host * ha,
+				 uint16_t fw_ddb_index)
+{
+	uint32_t mbox_cmd[MBOX_REG_COUNT];
+	uint32_t mbox_sts[MBOX_REG_COUNT];
+
+	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+	memset(&mbox_sts, 0, sizeof(mbox_sts));
+	mbox_cmd[0] = MBOX_CMD_CLEAR_DATABASE_ENTRY;
+	mbox_cmd[1] = fw_ddb_index;
+	if (qla4xxx_mailbox_command(ha, 2, 5, &mbox_cmd[0], &mbox_sts[0]) !=
+	    QLA_SUCCESS)
+		return QLA_ERROR;
+
+	return QLA_SUCCESS;
+}
+
+/**************************************************************************
+ * qla4xxx_initialize_fw_cb
+ *	This routine initializes the firmware control block for the
+ *	specified adapter.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *
+ * Returns:
+ *	QLA_SUCCESS - Successfully initialized firmware ctrl block
+ *	QLA_ERROR   - Failed to initialize firmware ctrl block
+ **************************************************************************/
+int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha)
+{
+	struct init_fw_ctrl_blk *init_fw_cb;
+	dma_addr_t init_fw_cb_dma;
+	uint32_t mbox_cmd[MBOX_REG_COUNT];
+	uint32_t mbox_sts[MBOX_REG_COUNT];
+	int status = QLA_ERROR;
+
+	init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
+					sizeof(struct init_fw_ctrl_blk),
+					&init_fw_cb_dma, GFP_KERNEL);
+	if (init_fw_cb == NULL) {
+		DEBUG2(printk("scsi%ld: %s: Unable to alloc init_cb\n",
+			      ha->host_no, __func__));
+		return 10;
+	}
+	memset(init_fw_cb, 0, sizeof(struct init_fw_ctrl_blk));
+
+	/* Get Initialize Firmware Control Block. */
+	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+	memset(&mbox_sts, 0, sizeof(mbox_sts));
+	mbox_cmd[0] = MBOX_CMD_GET_INIT_FW_CTRL_BLOCK;
+	mbox_cmd[2] = LSDW(init_fw_cb_dma);
+	mbox_cmd[3] = MSDW(init_fw_cb_dma);
+	if (qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]) !=
+	    QLA_SUCCESS) {
+		dma_free_coherent(&ha->pdev->dev,
+				  sizeof(struct init_fw_ctrl_blk),
+				  init_fw_cb, init_fw_cb_dma);
+		return status;
+	}
+
+	/* Initialize request and response queues. */
+	qla4xxx_init_rings(ha);
+
+	/* Fill in the request and response queue information. */
+	init_fw_cb->ReqQConsumerIndex = cpu_to_le16(ha->request_out);
+	init_fw_cb->ComplQProducerIndex = cpu_to_le16(ha->response_in);
+	init_fw_cb->ReqQLen = __constant_cpu_to_le16(REQUEST_QUEUE_DEPTH);
+	init_fw_cb->ComplQLen = __constant_cpu_to_le16(RESPONSE_QUEUE_DEPTH);
+	init_fw_cb->ReqQAddrLo = cpu_to_le32(LSDW(ha->request_dma));
+	init_fw_cb->ReqQAddrHi = cpu_to_le32(MSDW(ha->request_dma));
+	init_fw_cb->ComplQAddrLo = cpu_to_le32(LSDW(ha->response_dma));
+	init_fw_cb->ComplQAddrHi = cpu_to_le32(MSDW(ha->response_dma));
+	init_fw_cb->ShadowRegBufAddrLo =
+		cpu_to_le32(LSDW(ha->shadow_regs_dma));
+	init_fw_cb->ShadowRegBufAddrHi =
+		cpu_to_le32(MSDW(ha->shadow_regs_dma));
+
+	/* Set up required options. */
+	init_fw_cb->FwOptions |=
+		__constant_cpu_to_le16(FWOPT_SESSION_MODE |
+				       FWOPT_INITIATOR_MODE);
+	init_fw_cb->FwOptions &= __constant_cpu_to_le16(~FWOPT_TARGET_MODE);
+
+	/* Save some info in adapter structure. */
+	ha->firmware_options = le16_to_cpu(init_fw_cb->FwOptions);
+	ha->tcp_options = le16_to_cpu(init_fw_cb->TCPOptions);
+	ha->heartbeat_interval = init_fw_cb->HeartbeatInterval;
+	ha->isns_server_port_number =
+		le16_to_cpu(init_fw_cb->iSNSServerPortNumber);
+	memcpy(ha->ip_address, init_fw_cb->IPAddr,
+	       min(sizeof(ha->ip_address), sizeof(init_fw_cb->IPAddr)));
+	memcpy(ha->subnet_mask, init_fw_cb->SubnetMask,
+	       min(sizeof(ha->subnet_mask), sizeof(init_fw_cb->SubnetMask)));
+	memcpy(ha->gateway, init_fw_cb->GatewayIPAddr,
+	       min(sizeof(ha->gateway), sizeof(init_fw_cb->GatewayIPAddr)));
+	memcpy(ha->isns_ip_address, init_fw_cb->iSNSIPAddr,
+	       min(sizeof(ha->isns_ip_address),
+		   sizeof(init_fw_cb->iSNSIPAddr)));
+	memcpy(ha->name_string, init_fw_cb->iSCSINameString,
+	       min(sizeof(ha->name_string),
+		   sizeof(init_fw_cb->iSCSINameString)));
+	memcpy(ha->alias, init_fw_cb->Alias,
+	       min(sizeof(ha->alias), sizeof(init_fw_cb->Alias)));
+
+	/* Save Command Line Paramater info */
+	ha->port_down_retry_count = le16_to_cpu(init_fw_cb->KeepAliveTimeout);
+	ha->discovery_wait = ql4xdiscoverywait;
+
+	/* Send Initialize Firmware Control Block. */
+	mbox_cmd[0] = MBOX_CMD_INITIALIZE_FIRMWARE;
+	mbox_cmd[1] = 0;
+	mbox_cmd[2] = LSDW(init_fw_cb_dma);
+	mbox_cmd[3] = MSDW(init_fw_cb_dma);
+	if (qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]) ==
+	    QLA_SUCCESS)
+		status = QLA_SUCCESS;
+	 else {
+		DEBUG2(printk("scsi%ld: %s: MBOX_CMD_INITIALIZE_FIRMWARE "
+			      "failed w/ status %04X\n", ha->host_no, __func__,
+			      mbox_sts[0]));
+	}
+	dma_free_coherent(&ha->pdev->dev, sizeof(struct init_fw_ctrl_blk),
+			  init_fw_cb, init_fw_cb_dma);
+
+	return status;
+}
+
+/**************************************************************************
+ * qla4xxx_get_dhcp_ip_address
+ *	This routine retrieves the IP Address obtained via DHCP for the
+ *	specified adapter.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *
+ * Returns:
+ *	QLA_SUCCESS - Successfully obtained DHCP IP Address
+ *	QLA_ERROR   - Failed to obtained
+ **************************************************************************/
+int qla4xxx_get_dhcp_ip_address(struct scsi_qla_host * ha)
+{
+	struct init_fw_ctrl_blk *init_fw_cb;
+	dma_addr_t init_fw_cb_dma;
+	uint32_t mbox_cmd[MBOX_REG_COUNT];
+	uint32_t mbox_sts[MBOX_REG_COUNT];
+
+	init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
+					sizeof(struct init_fw_ctrl_blk),
+					&init_fw_cb_dma, GFP_KERNEL);
+	if (init_fw_cb == NULL) {
+		printk("scsi%ld: %s: Unable to alloc init_cb\n", ha->host_no,
+		       __func__);
+		return 10;
+	}
+
+	/* Get Initialize Firmware Control Block. */
+	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+	memset(&mbox_sts, 0, sizeof(mbox_sts));
+	memset(init_fw_cb, 0, sizeof(struct init_fw_ctrl_blk));
+	mbox_cmd[0] = MBOX_CMD_GET_INIT_FW_CTRL_BLOCK;
+	mbox_cmd[2] = LSDW(init_fw_cb_dma);
+	mbox_cmd[3] = MSDW(init_fw_cb_dma);
+
+	if (qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]) !=
+	    QLA_SUCCESS) {
+		DEBUG2(printk("scsi%ld: %s: Failed to get init_fw_ctrl_blk\n",
+			      ha->host_no, __func__));
+		dma_free_coherent(&ha->pdev->dev,
+				  sizeof(struct init_fw_ctrl_blk),
+				  init_fw_cb, init_fw_cb_dma);
+		return QLA_ERROR;
+	}
+
+	/* Save IP Address. */
+	memcpy(ha->ip_address, init_fw_cb->IPAddr,
+	       min(sizeof(ha->ip_address), sizeof(init_fw_cb->IPAddr)));
+	memcpy(ha->subnet_mask, init_fw_cb->SubnetMask,
+	       min(sizeof(ha->subnet_mask), sizeof(init_fw_cb->SubnetMask)));
+	memcpy(ha->gateway, init_fw_cb->GatewayIPAddr,
+	       min(sizeof(ha->gateway), sizeof(init_fw_cb->GatewayIPAddr)));
+
+	dma_free_coherent(&ha->pdev->dev, sizeof(struct init_fw_ctrl_blk),
+			  init_fw_cb, init_fw_cb_dma);
+
+	return QLA_SUCCESS;
+}
+
+/**************************************************************************
+ * qla4xxx_get_firmware_state
+ *	This routine retrieves the firmware state for the specified adapter.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *
+ * Returns:
+ *	QLA_SUCCESS - Successfully retrieved firmware state
+ *	QLA_ERROR   - Failed to retrieve firmware state
+ **************************************************************************/
+int qla4xxx_get_firmware_state(struct scsi_qla_host * ha)
+{
+	uint32_t mbox_cmd[MBOX_REG_COUNT];
+	uint32_t mbox_sts[MBOX_REG_COUNT];
+
+	/* Get firmware version */
+	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+	memset(&mbox_sts, 0, sizeof(mbox_sts));
+	mbox_cmd[0] = MBOX_CMD_GET_FW_STATE;
+	if (qla4xxx_mailbox_command(ha, 1, 4, &mbox_cmd[0], &mbox_sts[0]) !=
+	    QLA_SUCCESS) {
+		DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATE failed w/ "
+			      "status %04X\n", ha->host_no, __func__,
+			      mbox_sts[0]));
+		return QLA_ERROR;
+	}
+	ha->firmware_state = mbox_sts[1];
+	ha->board_id = mbox_sts[2];
+	ha->addl_fw_state = mbox_sts[3];
+	DEBUG2(printk("scsi%ld: %s firmware_state=0x%x\n",
+		      ha->host_no, __func__, ha->firmware_state);)
+
+		return QLA_SUCCESS;
+}
+
+/**************************************************************************
+ * qla4xxx_get_firmware_status
+ *	This routine retrieves the firmware status for the specified adapter.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *
+ * Returns:
+ *	QLA_SUCCESS - Successfully retrieved firmware status
+ *	QLA_ERROR   - Failed to retrieve firmware status
+ **************************************************************************/
+int qla4xxx_get_firmware_status(struct scsi_qla_host * ha)
+{
+	uint32_t mbox_cmd[MBOX_REG_COUNT];
+	uint32_t mbox_sts[MBOX_REG_COUNT];
+
+	/* Get firmware version */
+	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+	memset(&mbox_sts, 0, sizeof(mbox_sts));
+	mbox_cmd[0] = MBOX_CMD_GET_FW_STATUS;
+	if (qla4xxx_mailbox_command(ha, 1, 3, &mbox_cmd[0], &mbox_sts[0]) !=
+	    QLA_SUCCESS) {
+		DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATUS failed w/ "
+			      "status %04X\n", ha->host_no, __func__,
+			      mbox_sts[0]));
+		return QLA_ERROR;
+	}
+
+	/* High-water mark of IOCBs */
+	ha->iocb_hiwat = mbox_sts[2];
+	if (ha->iocb_hiwat > IOCB_HIWAT_CUSHION)
+		ha->iocb_hiwat -= IOCB_HIWAT_CUSHION;
+	else
+		ql4_printk(KERN_INFO, ha, "WARNING!!!  You have less than %d "
+			   "firmare IOCBs available (%d).\n",
+			   IOCB_HIWAT_CUSHION, ha->iocb_hiwat);
+
+	return QLA_SUCCESS;
+}
+
+/**************************************************************************
+ * qla4xxx_get_fwddb_entry
+ *	This routine retrieves the firmware's device database entry.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *	fw_ddb_index - Firmware's device database index
+ *	fw_ddb_entry - Pointer to firmware's device database entry structure
+ *	num_valid_ddb_entries - Pointer to number of valid ddb entries
+ *	next_ddb_index - Pointer to next valid device database index
+ *	fw_ddb_device_state - Pointer to device state
+ *
+ * Output:
+ *	fw_ddb_entry - Fills in structure if pointer is supplied
+ *	num_valid_ddb_entries - Fills in if pointer is supplied
+ *	next_ddb_index - Fills in if pointer is supplied
+ *	fw_ddb_device_state - Fills in if pointer is supplied
+ *
+ * Returns:
+ *	QLA_SUCCESS - Successfully retrieved ddb info from firmware
+ *	QLA_ERROR   - Failed to retrieve ddb info from firmware
+ **************************************************************************/
+int qla4xxx_get_fwddb_entry(struct scsi_qla_host *ha,
+			    uint16_t fw_ddb_index,
+			    struct dev_db_entry *fw_ddb_entry,
+			    dma_addr_t fw_ddb_entry_dma,
+			    uint32_t *num_valid_ddb_entries,
+			    uint32_t *next_ddb_index,
+			    uint32_t *fw_ddb_device_state,
+			    uint32_t *conn_err_detail,
+			    uint16_t *tcp_source_port_num,
+			    uint16_t *connection_id)
+{
+	int status = QLA_ERROR;
+	uint32_t mbox_cmd[MBOX_REG_COUNT];
+	uint32_t mbox_sts[MBOX_REG_COUNT];
+
+	/* Make sure the device index is valid */
+	if (fw_ddb_index >= MAX_DDB_ENTRIES) {
+		DEBUG2(printk("scsi%ld: %s: index [%d] out of range.\n",
+			      ha->host_no, __func__, fw_ddb_index));
+		goto exit_get_fwddb;
+	}
+	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+	memset(&mbox_sts, 0, sizeof(mbox_sts));
+	mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY;
+	mbox_cmd[1] = (uint32_t) fw_ddb_index;
+	mbox_cmd[2] = LSDW(fw_ddb_entry_dma);
+	mbox_cmd[3] = MSDW(fw_ddb_entry_dma);
+	if (qla4xxx_mailbox_command(ha, 4, 7, &mbox_cmd[0], &mbox_sts[0]) ==
+	    QLA_ERROR) {
+		DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_DATABASE_ENTRY failed"
+			      " with status 0x%04X\n", ha->host_no, __func__,
+			      mbox_sts[0]));
+		goto exit_get_fwddb;
+	}
+	if (fw_ddb_index != mbox_sts[1]) {
+		DEBUG2(printk("scsi%ld: %s: index mismatch [%d] != [%d].\n",
+			      ha->host_no, __func__, fw_ddb_index,
+			      mbox_sts[1]));
+		goto exit_get_fwddb;
+	}
+	if (fw_ddb_entry) {
+		ql4_printk(KERN_INFO, ha, "DDB[%d] MB0 %04x Tot %d Next %d "
+			   "State %04x ConnErr %08x %d.%d.%d.%d:%04d \"%s\"\n",
+			   fw_ddb_index, mbox_sts[0], mbox_sts[2], mbox_sts[3],
+			   mbox_sts[4], mbox_sts[5], fw_ddb_entry->ipAddr[0],
+			   fw_ddb_entry->ipAddr[1], fw_ddb_entry->ipAddr[2],
+			   fw_ddb_entry->ipAddr[3],
+			   le16_to_cpu(fw_ddb_entry->portNumber),
+			   fw_ddb_entry->iscsiName);
+	}
+	if (num_valid_ddb_entries)
+		*num_valid_ddb_entries = mbox_sts[2];
+	if (next_ddb_index)
+		*next_ddb_index = mbox_sts[3];
+	if (fw_ddb_device_state)
+		*fw_ddb_device_state = mbox_sts[4];
+
+	/*
+	 * RA: This mailbox has been changed to pass connection error and
+	 * details.  Its true for ISP4010 as per Version E - Not sure when it
+	 * was changed.	 Get the time2wait from the fw_dd_entry field :
+	 * default_time2wait which we call it as minTime2Wait DEV_DB_ENTRY
+	 * struct.
+	 */
+	if (conn_err_detail)
+		*conn_err_detail = mbox_sts[5];
+	if (tcp_source_port_num)
+		*tcp_source_port_num = (uint16_t) mbox_sts[6] >> 16;
+	if (connection_id)
+		*connection_id = (uint16_t) mbox_sts[6] & 0x00FF;
+	status = QLA_SUCCESS;
+
+exit_get_fwddb:
+	return status;
+}
+
+/**************************************************************************
+ * qla4xxx_set_fwddb_entry
+ *	This routine initializes or updates the adapter's device database
+ *	entry for the specified device.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *	fw_ddb_index - Firmware's device database index
+ *	fw_ddb_entry - Pointer to firmware's device database entry
+ *		       structure, or NULL.
+ *
+ * Output:
+ *	None
+ *
+ * Remarks:
+ *	This routine also triggers a login for the specified device.
+ *	Therefore, it may also be used as a secondary login routine when
+ *	a NULL pointer is specified for the fw_ddb_entry.
+ *
+ * Returns:
+ *	QLA_SUCCESS - Successfully set ddb_entry in firmware
+ *	QLA_ERROR   - Failed to set ddb_entry in firmware
+ **************************************************************************/
+int qla4xxx_set_ddb_entry(struct scsi_qla_host * ha, uint16_t fw_ddb_index,
+			  dma_addr_t fw_ddb_entry_dma)
+{
+	uint32_t mbox_cmd[MBOX_REG_COUNT];
+	uint32_t mbox_sts[MBOX_REG_COUNT];
+
+	/* Do not wait for completion. The firmware will send us an
+	 * ASTS_DATABASE_CHANGED (0x8014) to notify us of the login status.
+	 */
+	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+	memset(&mbox_sts, 0, sizeof(mbox_sts));
+
+	mbox_cmd[0] = MBOX_CMD_SET_DATABASE_ENTRY;
+	mbox_cmd[1] = (uint32_t) fw_ddb_index;
+	mbox_cmd[2] = LSDW(fw_ddb_entry_dma);
+	mbox_cmd[3] = MSDW(fw_ddb_entry_dma);
+	return qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]);
+}
+
+int qla4xxx_conn_open_session_login(struct scsi_qla_host * ha,
+				    uint16_t fw_ddb_index)
+{
+	int status = QLA_ERROR;
+	uint32_t mbox_cmd[MBOX_REG_COUNT];
+	uint32_t mbox_sts[MBOX_REG_COUNT];
+
+	/* Do not wait for completion. The firmware will send us an
+	 * ASTS_DATABASE_CHANGED (0x8014) to notify us of the login status.
+	 */
+	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+	memset(&mbox_sts, 0, sizeof(mbox_sts));
+	mbox_cmd[0] = MBOX_CMD_CONN_OPEN_SESS_LOGIN;
+	mbox_cmd[1] = (uint32_t) fw_ddb_index;
+	mbox_cmd[2] = 0;
+	mbox_cmd[3] = 0;
+	mbox_cmd[4] = 0;
+	status = qla4xxx_mailbox_command(ha, 4, 0, &mbox_cmd[0], &mbox_sts[0]);
+	DEBUG2(printk("%s fw_ddb_index=%d status=%d mbx0_1=0x%x :0x%x\n",
+		      __func__, fw_ddb_index, status, mbox_sts[0],
+		      mbox_sts[1]);)
+
+		return status;
+}
+
+/**************************************************************************
+ * qla4xxx_get_crash_record
+ *	This routine retrieves a crash record from the QLA4010 after an
+ *	8002h aen.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *
+ * Returns:
+ *	None
+ **************************************************************************/
+void qla4xxx_get_crash_record(struct scsi_qla_host * ha)
+{
+	uint32_t mbox_cmd[MBOX_REG_COUNT];
+	uint32_t mbox_sts[MBOX_REG_COUNT];
+	struct crash_record *crash_record = NULL;
+	dma_addr_t crash_record_dma = 0;
+	uint32_t crash_record_size = 0;
+	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+	memset(&mbox_sts, 0, sizeof(mbox_cmd));
+
+	/* Get size of crash record. */
+	mbox_cmd[0] = MBOX_CMD_GET_CRASH_RECORD;
+	if (qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]) !=
+	    QLA_SUCCESS) {
+		DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve size!\n",
+			      ha->host_no, __func__));
+		goto exit_get_crash_record;
+	}
+	crash_record_size = mbox_sts[4];
+	if (crash_record_size == 0) {
+		DEBUG2(printk("scsi%ld: %s: ERROR: Crash record size is 0!\n",
+			      ha->host_no, __func__));
+		goto exit_get_crash_record;
+	}
+
+	/* Alloc Memory for Crash Record. */
+	crash_record = dma_alloc_coherent(&ha->pdev->dev, crash_record_size,
+					  &crash_record_dma, GFP_KERNEL);
+	if (crash_record == NULL)
+		goto exit_get_crash_record;
+
+	/* Get Crash Record. */
+	mbox_cmd[0] = MBOX_CMD_GET_CRASH_RECORD;
+	mbox_cmd[2] = LSDW(crash_record_dma);
+	mbox_cmd[3] = MSDW(crash_record_dma);
+	mbox_cmd[4] = crash_record_size;
+	if (qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]) !=
+	    QLA_SUCCESS)
+		goto exit_get_crash_record;
+
+	/* Dump Crash Record. */
+
+exit_get_crash_record:
+	if (crash_record)
+		dma_free_coherent(&ha->pdev->dev, crash_record_size,
+				  crash_record, crash_record_dma);
+}
+
+/**************************************************************************
+ * qla4xxx_get_conn_event_log
+ *	This routine retrieves the connection event log
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *
+ * Returns:
+ *	None
+ **************************************************************************/
+void qla4xxx_get_conn_event_log(struct scsi_qla_host * ha)
+{
+	uint32_t mbox_cmd[MBOX_REG_COUNT];
+	uint32_t mbox_sts[MBOX_REG_COUNT];
+	struct conn_event_log_entry *event_log = NULL;
+	dma_addr_t event_log_dma = 0;
+	uint32_t event_log_size = 0;
+	uint32_t num_valid_entries;
+	uint32_t      oldest_entry = 0;
+	uint32_t	max_event_log_entries;
+	uint8_t		i;
+
+
+	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+	memset(&mbox_sts, 0, sizeof(mbox_cmd));
+
+	/* Get size of crash record. */
+	mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG;
+	if (qla4xxx_mailbox_command(ha, 4, 5, &mbox_cmd[0], &mbox_sts[0]) !=
+	    QLA_SUCCESS)
+		goto exit_get_event_log;
+
+	event_log_size = mbox_sts[4];
+	if (event_log_size == 0)
+		goto exit_get_event_log;
+
+	/* Alloc Memory for Crash Record. */
+	event_log = dma_alloc_coherent(&ha->pdev->dev, event_log_size,
+				       &event_log_dma, GFP_KERNEL);
+	if (event_log == NULL)
+		goto exit_get_event_log;
+
+	/* Get Crash Record. */
+	mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG;
+	mbox_cmd[2] = LSDW(event_log_dma);
+	mbox_cmd[3] = MSDW(event_log_dma);
+	if (qla4xxx_mailbox_command(ha, 4, 5, &mbox_cmd[0], &mbox_sts[0]) !=
+	    QLA_SUCCESS) {
+		DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve event "
+			      "log!\n", ha->host_no, __func__));
+		goto exit_get_event_log;
+	}
+
+	/* Dump Event Log. */
+	num_valid_entries = mbox_sts[1];
+
+	max_event_log_entries = event_log_size /
+		sizeof(struct conn_event_log_entry);
+
+	if (num_valid_entries > max_event_log_entries)
+		oldest_entry = num_valid_entries % max_event_log_entries;
+
+	DEBUG3(printk("scsi%ld: Connection Event Log Dump (%d entries):\n",
+		      ha->host_no, num_valid_entries));
+
+	if (extended_error_logging == 3) {
+		if (oldest_entry == 0) {
+			/* Circular Buffer has not wrapped around */
+			for (i=0; i < num_valid_entries; i++) {
+				qla4xxx_dump_buffer((uint8_t *)event_log+
+						    (i*sizeof(*event_log)),
+						    sizeof(*event_log));
+			}
+		}
+		else {
+			/* Circular Buffer has wrapped around -
+			 * display accordingly*/
+			for (i=oldest_entry; i < max_event_log_entries; i++) {
+				qla4xxx_dump_buffer((uint8_t *)event_log+
+						    (i*sizeof(*event_log)),
+						    sizeof(*event_log));
+			}
+			for (i=0; i < oldest_entry; i++) {
+				qla4xxx_dump_buffer((uint8_t *)event_log+
+						    (i*sizeof(*event_log)),
+						    sizeof(*event_log));
+			}
+		}
+	}
+
+exit_get_event_log:
+	if (event_log)
+		dma_free_coherent(&ha->pdev->dev, event_log_size, event_log,
+				  event_log_dma);
+}
+
+/**************************************************************************
+ * qla4xxx_reset_lun
+ *	This routine performs a LUN RESET on the specified target/lun.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *	ddb_entry - Pointer to device database entry
+ *	lun_entry - Pointer to lun entry structure
+ *
+ * Remarks:
+ *	The caller must ensure that the ddb_entry and lun_entry pointers
+ *	are valid before calling this routine.
+ *
+ * Returns:
+ *	QLA_SUCCESS - lun reset completed successfully
+ *	QLA_ERROR   - lun reset failed
+ **************************************************************************/
+int qla4xxx_reset_lun(struct scsi_qla_host * ha, struct ddb_entry * ddb_entry,
+		      int lun)
+{
+	uint32_t mbox_cmd[MBOX_REG_COUNT];
+	uint32_t mbox_sts[MBOX_REG_COUNT];
+	int status = QLA_SUCCESS;
+
+	DEBUG2(printk("scsi%ld:%d:%d: lun reset issued\n", ha->host_no,
+		      ddb_entry->os_target_id, lun));
+
+	/*
+	 * Send lun reset command to ISP, so that the ISP will return all
+	 * outstanding requests with RESET status
+	 */
+	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+	memset(&mbox_sts, 0, sizeof(mbox_sts));
+	mbox_cmd[0] = MBOX_CMD_LUN_RESET;
+	mbox_cmd[1] = ddb_entry->fw_ddb_index;
+	mbox_cmd[2] = lun << 8;
+	mbox_cmd[5] = 0x01;	/* Immediate Command Enable */
+	qla4xxx_mailbox_command(ha, 6, 1, &mbox_cmd[0], &mbox_sts[0]);
+	if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE &&
+	    mbox_sts[0] != MBOX_STS_COMMAND_ERROR)
+		status = QLA_ERROR;
+
+	return status;
+}
+
+
+int qla4xxx_get_flash(struct scsi_qla_host * ha, dma_addr_t dma_addr,
+		      uint32_t offset, uint32_t len)
+{
+	uint32_t mbox_cmd[MBOX_REG_COUNT];
+	uint32_t mbox_sts[MBOX_REG_COUNT];
+
+	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+	memset(&mbox_sts, 0, sizeof(mbox_sts));
+	mbox_cmd[0] = MBOX_CMD_READ_FLASH;
+	mbox_cmd[1] = LSDW(dma_addr);
+	mbox_cmd[2] = MSDW(dma_addr);
+	mbox_cmd[3] = offset;
+	mbox_cmd[4] = len;
+	if (qla4xxx_mailbox_command(ha, 5, 2, &mbox_cmd[0], &mbox_sts[0]) !=
+	    QLA_SUCCESS) {
+		DEBUG2(printk("scsi%ld: %s: MBOX_CMD_READ_FLASH, failed w/ "
+		    "status %04X %04X, offset %08x, len %08x\n", ha->host_no,
+		    __func__, mbox_sts[0], mbox_sts[1], offset, len));
+		return QLA_ERROR;
+	}
+	return QLA_SUCCESS;
+}
+
+/**************************************************************************
+ * qla4xxx_get_fw_version
+ *	This routine retrieves the firmware version for the specified adapter.
+ *
+ * Input:
+ *	ha - Pointer to host adapter structure.
+ *
+ * Output:
+ *	None
+ *
+ * Remarks:
+ *	In QLA4010, mailboxes 2 & 3 may hold an address for data.  Make sure
+ *	that we write 0 to those mailboxes, if unused.
+ *
+ * Returns:
+ *	QLA_SUCCESS - Successfully retrieved firmware version
+ *	QLA_ERROR   - Failed to retrieve firmware version
+ **************************************************************************/
+int qla4xxx_get_fw_version(struct scsi_qla_host * ha)
+{
+	uint32_t mbox_cmd[MBOX_REG_COUNT];
+	uint32_t mbox_sts[MBOX_REG_COUNT];
+
+	/* Get firmware version. */
+	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+	memset(&mbox_sts, 0, sizeof(mbox_sts));
+	mbox_cmd[0] = MBOX_CMD_ABOUT_FW;
+	if (qla4xxx_mailbox_command(ha, 4, 5, &mbox_cmd[0], &mbox_sts[0]) !=
+	    QLA_SUCCESS) {
+		DEBUG2(printk("scsi%ld: %s: MBOX_CMD_ABOUT_FW failed w/ "
+		    "status %04X\n", ha->host_no, __func__, mbox_sts[0]));
+		return QLA_ERROR;
+	}
+
+	/* Save firmware version information. */
+	ha->firmware_version[0] = mbox_sts[1];
+	ha->firmware_version[1] = mbox_sts[2];
+	ha->patch_number = mbox_sts[3];
+	ha->build_number = mbox_sts[4];
+
+	return QLA_SUCCESS;
+}
+
+int qla4xxx_get_default_ddb(struct scsi_qla_host *ha, dma_addr_t dma_addr)
+{
+	uint32_t mbox_cmd[MBOX_REG_COUNT];
+	uint32_t mbox_sts[MBOX_REG_COUNT];
+
+	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+	memset(&mbox_sts, 0, sizeof(mbox_sts));
+
+	mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY_DEFAULTS;
+	mbox_cmd[2] = LSDW(dma_addr);
+	mbox_cmd[3] = MSDW(dma_addr);
+
+	if (qla4xxx_mailbox_command(ha, 4, 1, &mbox_cmd[0], &mbox_sts[0]) !=
+	    QLA_SUCCESS) {
+		DEBUG2(printk("scsi%ld: %s: failed status %04X\n",
+		     ha->host_no, __func__, mbox_sts[0]));
+		return QLA_ERROR;
+	}
+	return QLA_SUCCESS;
+}
+
+int qla4xxx_req_ddb_entry(struct scsi_qla_host *ha, uint32_t *ddb_index)
+{
+	uint32_t mbox_cmd[MBOX_REG_COUNT];
+	uint32_t mbox_sts[MBOX_REG_COUNT];
+
+	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+	memset(&mbox_sts, 0, sizeof(mbox_sts));
+
+	mbox_cmd[0] = MBOX_CMD_REQUEST_DATABASE_ENTRY;
+	mbox_cmd[1] = MAX_PRST_DEV_DB_ENTRIES;
+
+	if (qla4xxx_mailbox_command(ha, 2, 3, &mbox_cmd[0], &mbox_sts[0]) !=
+	    QLA_SUCCESS) {
+		if (mbox_sts[0] == MBOX_STS_COMMAND_ERROR) {
+			*ddb_index = mbox_sts[2];
+		} else {
+			DEBUG2(printk("scsi%ld: %s: failed status %04X\n",
+			     ha->host_no, __func__, mbox_sts[0]));
+			return QLA_ERROR;
+		}
+	} else {
+		*ddb_index = MAX_PRST_DEV_DB_ENTRIES;
+	}
+
+	return QLA_SUCCESS;
+}
+
+int qla4xxx_isns(struct scsi_qla_host *ha, uint32_t enable,
+		 char *ip, uint16_t port, struct qla_isns_rsp *isns_rsp)
+{
+	uint32_t mbox_cmd[MBOX_REG_COUNT];
+	uint32_t mbox_sts[MBOX_REG_COUNT];
+
+	while (test_and_set_bit(AF_ISNS_CMD_IN_PROCESS, &ha->flags) &
+	       AF_ISNS_CMD_IN_PROCESS) {
+		msleep(10);
+	}
+	/* Get firmware version. */
+	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+	memset(&mbox_sts, 0, sizeof(mbox_sts));
+
+	mbox_cmd[0] = MBOX_CMD_SET_ISNS_SERVICE;
+	if (enable) {
+		mbox_cmd[1] = ISNS_ENABLE;
+	} else {
+		mbox_cmd[1] = ISNS_DISABLE;
+	}
+	mbox_cmd[2] = *((uint32_t *)ip);
+	mbox_cmd[3] = port;
+
+	if (qla4xxx_mailbox_command(ha, 4, 6, &mbox_cmd[0], &mbox_sts[0])
+	    != QLA_SUCCESS) {
+		DEBUG2(printk("scsi%ld: %s: MBOX_CMD_SET_ISNS_SERVICE failed "
+			      "w/ status %04X %04X\n",
+			      ha->host_no, __func__, mbox_sts[0],
+			      mbox_sts[1]));
+		clear_bit(AF_ISNS_CMD_IN_PROCESS, &ha->flags);
+		return QLA_ERROR;
+	}
+
+	if (enable) {
+		if (mbox_cmd[0] == MBOX_STS_INTERMEDIATE_COMPLETION) {
+			/* wait for the AEN to complete the call */
+			while (test_bit(AF_ISNS_CMD_DONE, &ha->flags)) {
+				msleep(10);
+			}
+			clear_bit(AF_ISNS_CMD_DONE, &ha->flags);
+
+			memcpy(isns_rsp, &ha->isns_rsp,
+			       sizeof (struct qla_isns_rsp));
+		} else {
+			isns_rsp->conn_id = (uint16_t)(mbox_sts[2] & 0xFFFF);
+			isns_rsp->scn_conn_id =
+				(uint16_t)(mbox_sts[3] & 0xFFFF);
+			isns_rsp->esi_conn_id =
+				(uint16_t)(mbox_sts[4] & 0xFFFF);
+
+			isns_rsp->conn_port = (uint16_t)(mbox_sts[2] >> 16);
+			isns_rsp->scn_port = (uint16_t)(mbox_sts[3] >> 16);
+			isns_rsp->esi_port = (uint16_t)(mbox_sts[4] >> 16);
+		}
+	}
+
+	clear_bit(AF_ISNS_CMD_IN_PROCESS, &ha->flags);
+
+	return QLA_SUCCESS;
+}
+
+int qla4xxx_send_tgts(struct scsi_qla_host *ha, char *ip, uint16_t port)
+{
+	struct dev_db_entry *fw_ddb_entry;
+	dma_addr_t fw_ddb_entry_dma;
+	uint32_t ddb_index;
+	int ret_val = QLA_SUCCESS;
+
+
+	fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
+					  sizeof(*fw_ddb_entry),
+					  &fw_ddb_entry_dma, GFP_KERNEL);
+	if (!fw_ddb_entry) {
+		DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
+			      ha->host_no, __func__));
+		ret_val = QLA_ERROR;
+		goto qla4xxx_send_tgts_exit;
+	}
+
+	ret_val = qla4xxx_get_default_ddb(ha, fw_ddb_entry_dma);
+	if (ret_val != QLA_SUCCESS)
+		goto qla4xxx_send_tgts_exit;
+
+	ret_val = qla4xxx_req_ddb_entry(ha, &ddb_index);
+	if (ret_val != QLA_SUCCESS)
+		goto qla4xxx_send_tgts_exit;
+
+	memset((void *)fw_ddb_entry->iSCSIAlias, 0,
+	       sizeof(fw_ddb_entry->iSCSIAlias));
+
+	memset((void *)fw_ddb_entry->iscsiName, 0,
+	       sizeof(fw_ddb_entry->iscsiName));
+
+	memset((void *)fw_ddb_entry->ipAddr, 0, sizeof(fw_ddb_entry->ipAddr));
+	memset((void *)fw_ddb_entry->targetAddr, 0,
+	       sizeof(fw_ddb_entry->targetAddr));
+
+	fw_ddb_entry->options = (DDB_OPT_DISC_SESSION | DDB_OPT_TARGET);
+	fw_ddb_entry->portNumber = cpu_to_le16(ntohs(port));
+
+	fw_ddb_entry->ipAddr[0] = *ip;
+	fw_ddb_entry->ipAddr[1] = *(ip + 1);
+	fw_ddb_entry->ipAddr[2] = *(ip + 2);
+	fw_ddb_entry->ipAddr[3] = *(ip + 3);
+
+	ret_val = qla4xxx_set_ddb_entry(ha, ddb_index, fw_ddb_entry_dma);
+
+qla4xxx_send_tgts_exit:
+	dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
+			  fw_ddb_entry, fw_ddb_entry_dma);
+	return ret_val;
+}
+