[SCSI] qla4xxx: fix flash/ddb support

With open-iscsi support, target entries persisted in the FLASH were not
login. Added support in the qla4xxx driver to do the login on probe
time to the target entries saved in the FLASH by user.
With this changes upgrade to the new kernel with open-iscsi support in
qla4xxx will ensure users original target entries login on driver load

Signed-off-by: Manish Rangankar <manish.rangankar@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 1027 insertions, 54 deletions

diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 30f31b127f33..95910c9b4776 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -8,6 +8,7 @@
 #include <linux/slab.h>
 #include <linux/blkdev.h>
 #include <linux/iscsi_boot_sysfs.h>
+#include <linux/inet.h>
 
 #include <scsi/scsi_tcq.h>
 #include <scsi/scsicam.h>
@@ -31,6 +32,13 @@ static struct kmem_cache *srb_cachep;
 /*
  * Module parameter information and variables
  */
+int ql4xdisablesysfsboot = 1;
+module_param(ql4xdisablesysfsboot, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(ql4xdisablesysfsboot,
+		"Set to disable exporting boot targets to sysfs\n"
+		" 0 - Export boot targets\n"
+		" 1 - Do not export boot targets (Default)");
+
 int ql4xdontresethba = 0;
 module_param(ql4xdontresethba, int, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(ql4xdontresethba,
@@ -63,7 +71,7 @@ static int ql4xsess_recovery_tmo = QL4_SESS_RECOVERY_TMO;
 module_param(ql4xsess_recovery_tmo, int, S_IRUGO);
 MODULE_PARM_DESC(ql4xsess_recovery_tmo,
 		"Target Session Recovery Timeout.\n"
-		" Default: 30 sec.");
+		" Default: 120 sec.");
 
 static int qla4xxx_wait_for_hba_online(struct scsi_qla_host *ha);
 /*
@@ -415,7 +423,7 @@ static int qla4xxx_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
 	qla_ep = ep->dd_data;
 	ha = to_qla_host(qla_ep->host);
 
-	if (adapter_up(ha))
+	if (adapter_up(ha) && !test_bit(AF_BUILD_DDB_LIST, &ha->flags))
 		ret = 1;
 
 	return ret;
@@ -975,6 +983,150 @@ static int qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
 
 }
 
+int qla4xxx_get_ddb_index(struct scsi_qla_host *ha, uint16_t *ddb_index)
+{
+	uint32_t mbx_sts = 0;
+	uint16_t tmp_ddb_index;
+	int ret;
+
+get_ddb_index:
+	tmp_ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
+
+	if (tmp_ddb_index >= MAX_DDB_ENTRIES) {
+		DEBUG2(ql4_printk(KERN_INFO, ha,
+				  "Free DDB index not available\n"));
+		ret = QLA_ERROR;
+		goto exit_get_ddb_index;
+	}
+
+	if (test_and_set_bit(tmp_ddb_index, ha->ddb_idx_map))
+		goto get_ddb_index;
+
+	DEBUG2(ql4_printk(KERN_INFO, ha,
+			  "Found a free DDB index at %d\n", tmp_ddb_index));
+	ret = qla4xxx_req_ddb_entry(ha, tmp_ddb_index, &mbx_sts);
+	if (ret == QLA_ERROR) {
+		if (mbx_sts == MBOX_STS_COMMAND_ERROR) {
+			ql4_printk(KERN_INFO, ha,
+				   "DDB index = %d not available trying next\n",
+				   tmp_ddb_index);
+			goto get_ddb_index;
+		}
+		DEBUG2(ql4_printk(KERN_INFO, ha,
+				  "Free FW DDB not available\n"));
+	}
+
+	*ddb_index = tmp_ddb_index;
+
+exit_get_ddb_index:
+	return ret;
+}
+
+static int qla4xxx_match_ipaddress(struct scsi_qla_host *ha,
+				   struct ddb_entry *ddb_entry,
+				   char *existing_ipaddr,
+				   char *user_ipaddr)
+{
+	uint8_t dst_ipaddr[IPv6_ADDR_LEN];
+	char formatted_ipaddr[DDB_IPADDR_LEN];
+	int status = QLA_SUCCESS, ret = 0;
+
+	if (ddb_entry->fw_ddb_entry.options & DDB_OPT_IPV6_DEVICE) {
+		ret = in6_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
+			       '\0', NULL);
+		if (ret == 0) {
+			status = QLA_ERROR;
+			goto out_match;
+		}
+		ret = sprintf(formatted_ipaddr, "%pI6", dst_ipaddr);
+	} else {
+		ret = in4_pton(user_ipaddr, strlen(user_ipaddr), dst_ipaddr,
+			       '\0', NULL);
+		if (ret == 0) {
+			status = QLA_ERROR;
+			goto out_match;
+		}
+		ret = sprintf(formatted_ipaddr, "%pI4", dst_ipaddr);
+	}
+
+	if (strcmp(existing_ipaddr, formatted_ipaddr))
+		status = QLA_ERROR;
+
+out_match:
+	return status;
+}
+
+static int qla4xxx_match_fwdb_session(struct scsi_qla_host *ha,
+				      struct iscsi_cls_conn *cls_conn)
+{
+	int idx = 0, max_ddbs, rval;
+	struct iscsi_cls_session *cls_sess = iscsi_conn_to_session(cls_conn);
+	struct iscsi_session *sess, *existing_sess;
+	struct iscsi_conn *conn, *existing_conn;
+	struct ddb_entry *ddb_entry;
+
+	sess = cls_sess->dd_data;
+	conn = cls_conn->dd_data;
+
+	if (sess->targetname == NULL ||
+	    conn->persistent_address == NULL ||
+	    conn->persistent_port == 0)
+		return QLA_ERROR;
+
+	max_ddbs =  is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
+				     MAX_DEV_DB_ENTRIES;
+
+	for (idx = 0; idx < max_ddbs; idx++) {
+		ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
+		if (ddb_entry == NULL)
+			continue;
+
+		if (ddb_entry->ddb_type != FLASH_DDB)
+			continue;
+
+		existing_sess = ddb_entry->sess->dd_data;
+		existing_conn = ddb_entry->conn->dd_data;
+
+		if (existing_sess->targetname == NULL ||
+		    existing_conn->persistent_address == NULL ||
+		    existing_conn->persistent_port == 0)
+			continue;
+
+		DEBUG2(ql4_printk(KERN_INFO, ha,
+				  "IQN = %s User IQN = %s\n",
+				  existing_sess->targetname,
+				  sess->targetname));
+
+		DEBUG2(ql4_printk(KERN_INFO, ha,
+				  "IP = %s User IP = %s\n",
+				  existing_conn->persistent_address,
+				  conn->persistent_address));
+
+		DEBUG2(ql4_printk(KERN_INFO, ha,
+				  "Port = %d User Port = %d\n",
+				  existing_conn->persistent_port,
+				  conn->persistent_port));
+
+		if (strcmp(existing_sess->targetname, sess->targetname))
+			continue;
+		rval = qla4xxx_match_ipaddress(ha, ddb_entry,
+					existing_conn->persistent_address,
+					conn->persistent_address);
+		if (rval == QLA_ERROR)
+			continue;
+		if (existing_conn->persistent_port != conn->persistent_port)
+			continue;
+		break;
+	}
+
+	if (idx == max_ddbs)
+		return QLA_ERROR;
+
+	DEBUG2(ql4_printk(KERN_INFO, ha,
+			  "Match found in fwdb sessions\n"));
+	return QLA_SUCCESS;
+}
+
 static struct iscsi_cls_session *
 qla4xxx_session_create(struct iscsi_endpoint *ep,
 			uint16_t cmds_max, uint16_t qdepth,
@@ -984,8 +1136,7 @@ qla4xxx_session_create(struct iscsi_endpoint *ep,
 	struct scsi_qla_host *ha;
 	struct qla_endpoint *qla_ep;
 	struct ddb_entry *ddb_entry;
-	uint32_t ddb_index;
-	uint32_t mbx_sts = 0;
+	uint16_t ddb_index;
 	struct iscsi_session *sess;
 	struct sockaddr *dst_addr;
 	int ret;
@@ -1000,32 +1151,9 @@ qla4xxx_session_create(struct iscsi_endpoint *ep,
 	dst_addr = (struct sockaddr *)&qla_ep->dst_addr;
 	ha = to_qla_host(qla_ep->host);
 
-get_ddb_index:
-	ddb_index = find_first_zero_bit(ha->ddb_idx_map, MAX_DDB_ENTRIES);
-
-	if (ddb_index >= MAX_DDB_ENTRIES) {
-		DEBUG2(ql4_printk(KERN_INFO, ha,
-				  "Free DDB index not available\n"));
+	ret = qla4xxx_get_ddb_index(ha, &ddb_index);
+	if (ret == QLA_ERROR)
 		return NULL;
-	}
-
-	if (test_and_set_bit(ddb_index, ha->ddb_idx_map))
-		goto get_ddb_index;
-
-	DEBUG2(ql4_printk(KERN_INFO, ha,
-			  "Found a free DDB index at %d\n", ddb_index));
-	ret = qla4xxx_req_ddb_entry(ha, ddb_index, &mbx_sts);
-	if (ret == QLA_ERROR) {
-		if (mbx_sts == MBOX_STS_COMMAND_ERROR) {
-			ql4_printk(KERN_INFO, ha,
-				   "DDB index = %d not available trying next\n",
-				   ddb_index);
-			goto get_ddb_index;
-		}
-		DEBUG2(ql4_printk(KERN_INFO, ha,
-				  "Free FW DDB not available\n"));
-		return NULL;
-	}
 
 	cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport, qla_ep->host,
 				       cmds_max, sizeof(struct ddb_entry),
@@ -1040,6 +1168,8 @@ get_ddb_index:
 	ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
 	ddb_entry->ha = ha;
 	ddb_entry->sess = cls_sess;
+	ddb_entry->unblock_sess = qla4xxx_unblock_ddb;
+	ddb_entry->ddb_change = qla4xxx_ddb_change;
 	cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
 	ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] = ddb_entry;
 	ha->tot_ddbs++;
@@ -1109,7 +1239,7 @@ static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
 	struct iscsi_session *sess;
 	struct ddb_entry *ddb_entry;
 	struct scsi_qla_host *ha;
-	struct dev_db_entry *fw_ddb_entry;
+	struct dev_db_entry *fw_ddb_entry = NULL;
 	dma_addr_t fw_ddb_entry_dma;
 	uint32_t mbx_sts = 0;
 	int ret = 0;
@@ -1120,12 +1250,25 @@ static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
 	ddb_entry = sess->dd_data;
 	ha = ddb_entry->ha;
 
+	/* Check if we have  matching FW DDB, if yes then do not
+	 * login to this target. This could cause target to logout previous
+	 * connection
+	 */
+	ret = qla4xxx_match_fwdb_session(ha, cls_conn);
+	if (ret == QLA_SUCCESS) {
+		ql4_printk(KERN_INFO, ha,
+			   "Session already exist in FW.\n");
+		ret = -EEXIST;
+		goto exit_conn_start;
+	}
+
 	fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
 					  &fw_ddb_entry_dma, GFP_KERNEL);
 	if (!fw_ddb_entry) {
 		ql4_printk(KERN_ERR, ha,
 			   "%s: Unable to allocate dma buffer\n", __func__);
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto exit_conn_start;
 	}
 
 	ret = qla4xxx_set_param_ddbentry(ha, ddb_entry, cls_conn, &mbx_sts);
@@ -1138,9 +1281,7 @@ static int qla4xxx_conn_start(struct iscsi_cls_conn *cls_conn)
 		if (mbx_sts)
 			if (ddb_entry->fw_ddb_device_state ==
 						DDB_DS_SESSION_ACTIVE) {
-				iscsi_conn_start(ddb_entry->conn);
-				iscsi_conn_login_event(ddb_entry->conn,
-						ISCSI_CONN_STATE_LOGGED_IN);
+				ddb_entry->unblock_sess(ddb_entry->sess);
 				goto exit_set_param;
 			}
 
@@ -1167,8 +1308,9 @@ exit_set_param:
 	ret = 0;
 
 exit_conn_start:
-	dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
-			  fw_ddb_entry, fw_ddb_entry_dma);
+	if (fw_ddb_entry)
+		dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
+				  fw_ddb_entry, fw_ddb_entry_dma);
 	return ret;
 }
 
@@ -1344,6 +1486,101 @@ static int qla4xxx_task_xmit(struct iscsi_task *task)
 	return -ENOSYS;
 }
 
+static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
+				     struct dev_db_entry *fw_ddb_entry,
+				     struct iscsi_cls_session *cls_sess,
+				     struct iscsi_cls_conn *cls_conn)
+{
+	int buflen = 0;
+	struct iscsi_session *sess;
+	struct iscsi_conn *conn;
+	char ip_addr[DDB_IPADDR_LEN];
+	uint16_t options = 0;
+
+	sess = cls_sess->dd_data;
+	conn = cls_conn->dd_data;
+
+	conn->max_recv_dlength = BYTE_UNITS *
+			  le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
+
+	conn->max_xmit_dlength = BYTE_UNITS *
+			  le16_to_cpu(fw_ddb_entry->iscsi_max_snd_data_seg_len);
+
+	sess->initial_r2t_en =
+			    (BIT_10 & le16_to_cpu(fw_ddb_entry->iscsi_options));
+
+	sess->max_r2t = le16_to_cpu(fw_ddb_entry->iscsi_max_outsnd_r2t);
+
+	sess->imm_data_en = (BIT_11 & le16_to_cpu(fw_ddb_entry->iscsi_options));
+
+	sess->first_burst = BYTE_UNITS *
+			       le16_to_cpu(fw_ddb_entry->iscsi_first_burst_len);
+
+	sess->max_burst = BYTE_UNITS *
+				 le16_to_cpu(fw_ddb_entry->iscsi_max_burst_len);
+
+	sess->time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
+
+	sess->time2retain = le16_to_cpu(fw_ddb_entry->iscsi_def_time2retain);
+
+	conn->persistent_port = le16_to_cpu(fw_ddb_entry->port);
+
+	sess->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
+
+	options = le16_to_cpu(fw_ddb_entry->options);
+	if (options & DDB_OPT_IPV6_DEVICE)
+		sprintf(ip_addr, "%pI6", fw_ddb_entry->ip_addr);
+	else
+		sprintf(ip_addr, "%pI4", fw_ddb_entry->ip_addr);
+
+	iscsi_set_param(cls_conn, ISCSI_PARAM_TARGET_NAME,
+			(char *)fw_ddb_entry->iscsi_name, buflen);
+	iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
+			(char *)ha->name_string, buflen);
+	iscsi_set_param(cls_conn, ISCSI_PARAM_PERSISTENT_ADDRESS,
+			(char *)ip_addr, buflen);
+}
+
+void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
+					     struct ddb_entry *ddb_entry)
+{
+	struct iscsi_cls_session *cls_sess;
+	struct iscsi_cls_conn *cls_conn;
+	uint32_t ddb_state;
+	dma_addr_t fw_ddb_entry_dma;
+	struct dev_db_entry *fw_ddb_entry;
+
+	fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
+					  &fw_ddb_entry_dma, GFP_KERNEL);
+	if (!fw_ddb_entry) {
+		ql4_printk(KERN_ERR, ha,
+			   "%s: Unable to allocate dma buffer\n", __func__);
+		goto exit_session_conn_fwddb_param;
+	}
+
+	if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
+				    fw_ddb_entry_dma, NULL, NULL, &ddb_state,
+				    NULL, NULL, NULL) == QLA_ERROR) {
+		DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
+				  "get_ddb_entry for fw_ddb_index %d\n",
+				  ha->host_no, __func__,
+				  ddb_entry->fw_ddb_index));
+		goto exit_session_conn_fwddb_param;
+	}
+
+	cls_sess = ddb_entry->sess;
+
+	cls_conn = ddb_entry->conn;
+
+	/* Update params */
+	qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
+
+exit_session_conn_fwddb_param:
+	if (fw_ddb_entry)
+		dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
+				  fw_ddb_entry, fw_ddb_entry_dma);
+}
+
 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
 				       struct ddb_entry *ddb_entry)
 {
@@ -1360,7 +1597,7 @@ void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
 	if (!fw_ddb_entry) {
 		ql4_printk(KERN_ERR, ha,
 			   "%s: Unable to allocate dma buffer\n", __func__);
-		return;
+		goto exit_session_conn_param;
 	}
 
 	if (qla4xxx_get_fwddb_entry(ha, ddb_entry->fw_ddb_index, fw_ddb_entry,
@@ -1370,7 +1607,7 @@ void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
 				  "get_ddb_entry for fw_ddb_index %d\n",
 				  ha->host_no, __func__,
 				  ddb_entry->fw_ddb_index));
-		return;
+		goto exit_session_conn_param;
 	}
 
 	cls_sess = ddb_entry->sess;
@@ -1379,6 +1616,12 @@ void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
 	cls_conn = ddb_entry->conn;
 	conn = cls_conn->dd_data;
 
+	/* Update timers after login */
+	ddb_entry->default_relogin_timeout =
+				le16_to_cpu(fw_ddb_entry->def_timeout);
+	ddb_entry->default_time2wait =
+				le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
+
 	/* Update params */
 	conn->max_recv_dlength = BYTE_UNITS *
 			  le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
@@ -1407,6 +1650,11 @@ void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
 
 	memcpy(sess->initiatorname, ha->name_string,
 	       min(sizeof(ha->name_string), sizeof(sess->initiatorname)));
+
+exit_session_conn_param:
+	if (fw_ddb_entry)
+		dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
+				  fw_ddb_entry, fw_ddb_entry_dma);
 }
 
 /*
@@ -1607,6 +1855,9 @@ static void qla4xxx_mem_free(struct scsi_qla_host *ha)
 		vfree(ha->chap_list);
 	ha->chap_list = NULL;
 
+	if (ha->fw_ddb_dma_pool)
+		dma_pool_destroy(ha->fw_ddb_dma_pool);
+
 	/* release io space registers  */
 	if (is_qla8022(ha)) {
 		if (ha->nx_pcibase)
@@ -1689,6 +1940,16 @@ static int qla4xxx_mem_alloc(struct scsi_qla_host *ha)
 		goto mem_alloc_error_exit;
 	}
 
+	ha->fw_ddb_dma_pool = dma_pool_create("ql4_fw_ddb", &ha->pdev->dev,
+					      DDB_DMA_BLOCK_SIZE, 8, 0);
+
+	if (ha->fw_ddb_dma_pool == NULL) {
+		ql4_printk(KERN_WARNING, ha,
+			   "%s: fw_ddb_dma_pool allocation failed..\n",
+			   __func__);
+		goto mem_alloc_error_exit;
+	}
+
 	return QLA_SUCCESS;
 
 mem_alloc_error_exit:
@@ -1800,6 +2061,60 @@ void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
 	}
 }
 
+void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
+{
+	struct iscsi_session *sess;
+	struct ddb_entry *ddb_entry;
+	struct scsi_qla_host *ha;
+
+	sess = cls_sess->dd_data;
+	ddb_entry = sess->dd_data;
+	ha = ddb_entry->ha;
+
+	if (!(ddb_entry->ddb_type == FLASH_DDB))
+		return;
+
+	if (adapter_up(ha) && !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
+	    !iscsi_is_session_online(cls_sess)) {
+		if (atomic_read(&ddb_entry->retry_relogin_timer) !=
+		    INVALID_ENTRY) {
+			if (atomic_read(&ddb_entry->retry_relogin_timer) ==
+					0) {
+				atomic_set(&ddb_entry->retry_relogin_timer,
+					   INVALID_ENTRY);
+				set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
+				set_bit(DF_RELOGIN, &ddb_entry->flags);
+				DEBUG2(ql4_printk(KERN_INFO, ha,
+				       "%s: index [%d] login device\n",
+					__func__, ddb_entry->fw_ddb_index));
+			} else
+				atomic_dec(&ddb_entry->retry_relogin_timer);
+		}
+	}
+
+	/* Wait for relogin to timeout */
+	if (atomic_read(&ddb_entry->relogin_timer) &&
+	    (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
+		/*
+		 * If the relogin times out and the device is
+		 * still NOT ONLINE then try and relogin again.
+		 */
+		if (!iscsi_is_session_online(cls_sess)) {
+			/* Reset retry relogin timer */
+			atomic_inc(&ddb_entry->relogin_retry_count);
+			DEBUG2(ql4_printk(KERN_INFO, ha,
+				"%s: index[%d] relogin timed out-retrying"
+				" relogin (%d), retry (%d)\n", __func__,
+				ddb_entry->fw_ddb_index,
+				atomic_read(&ddb_entry->relogin_retry_count),
+				ddb_entry->default_time2wait + 4));
+			set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
+			atomic_set(&ddb_entry->retry_relogin_timer,
+				   ddb_entry->default_time2wait + 4);
+		}
+	}
+}
+
 /**
  * qla4xxx_timer - checks every second for work to do.
  * @ha: Pointer to host adapter structure.
@@ -1809,6 +2124,8 @@ static void qla4xxx_timer(struct scsi_qla_host *ha)
 	int start_dpc = 0;
 	uint16_t w;
 
+	iscsi_host_for_each_session(ha->host, qla4xxx_check_relogin_flash_ddb);
+
 	/* If we are in the middle of AER/EEH processing
 	 * skip any processing and reschedule the timer
 	 */
@@ -2078,7 +2395,12 @@ static void qla4xxx_fail_session(struct iscsi_cls_session *cls_session)
 	sess = cls_session->dd_data;
 	ddb_entry = sess->dd_data;
 	ddb_entry->fw_ddb_device_state = DDB_DS_SESSION_FAILED;
-	iscsi_session_failure(cls_session->dd_data, ISCSI_ERR_CONN_FAILED);
+
+	if (ddb_entry->ddb_type == FLASH_DDB)
+		iscsi_block_session(ddb_entry->sess);
+	else
+		iscsi_session_failure(cls_session->dd_data,
+				      ISCSI_ERR_CONN_FAILED);
 }
 
 /**
@@ -2163,7 +2485,7 @@ recover_ha_init_adapter:
 
 		/* NOTE: AF_ONLINE flag set upon successful completion of
 		 *       qla4xxx_initialize_adapter */
-		status = qla4xxx_initialize_adapter(ha);
+		status = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
 	}
 
 	/* Retry failed adapter initialization, if necessary
@@ -2245,17 +2567,108 @@ static void qla4xxx_relogin_devices(struct iscsi_cls_session *cls_session)
 			iscsi_unblock_session(ddb_entry->sess);
 		} else {
 			/* Trigger relogin */
-			iscsi_session_failure(cls_session->dd_data,
-					      ISCSI_ERR_CONN_FAILED);
+			if (ddb_entry->ddb_type == FLASH_DDB) {
+				if (!test_bit(DF_RELOGIN, &ddb_entry->flags))
+					qla4xxx_arm_relogin_timer(ddb_entry);
+			} else
+				iscsi_session_failure(cls_session->dd_data,
+						      ISCSI_ERR_CONN_FAILED);
 		}
 	}
 }
 
+int qla4xxx_unblock_flash_ddb(struct iscsi_cls_session *cls_session)
+{
+	struct iscsi_session *sess;
+	struct ddb_entry *ddb_entry;
+	struct scsi_qla_host *ha;
+
+	sess = cls_session->dd_data;
+	ddb_entry = sess->dd_data;
+	ha = ddb_entry->ha;
+	ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
+		   " unblock session\n", ha->host_no, __func__,
+		   ddb_entry->fw_ddb_index);
+
+	iscsi_unblock_session(ddb_entry->sess);
+
+	/* Start scan target */
+	if (test_bit(AF_ONLINE, &ha->flags)) {
+		ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
+			   " start scan\n", ha->host_no, __func__,
+			   ddb_entry->fw_ddb_index);
+		scsi_queue_work(ha->host, &ddb_entry->sess->scan_work);
+	}
+	return QLA_SUCCESS;
+}
+
+int qla4xxx_unblock_ddb(struct iscsi_cls_session *cls_session)
+{
+	struct iscsi_session *sess;
+	struct ddb_entry *ddb_entry;
+	struct scsi_qla_host *ha;
+
+	sess = cls_session->dd_data;
+	ddb_entry = sess->dd_data;
+	ha = ddb_entry->ha;
+	ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ddb[%d]"
+		   " unblock user space session\n", ha->host_no, __func__,
+		   ddb_entry->fw_ddb_index);
+	iscsi_conn_start(ddb_entry->conn);
+	iscsi_conn_login_event(ddb_entry->conn,
+			       ISCSI_CONN_STATE_LOGGED_IN);
+
+	return QLA_SUCCESS;
+}
+
 static void qla4xxx_relogin_all_devices(struct scsi_qla_host *ha)
 {
 	iscsi_host_for_each_session(ha->host, qla4xxx_relogin_devices);
 }
 
+static void qla4xxx_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
+{
+	uint16_t relogin_timer;
+	struct iscsi_session *sess;
+	struct ddb_entry *ddb_entry;
+	struct scsi_qla_host *ha;
+
+	sess = cls_sess->dd_data;
+	ddb_entry = sess->dd_data;
+	ha = ddb_entry->ha;
+
+	relogin_timer = max(ddb_entry->default_relogin_timeout,
+			    (uint16_t)RELOGIN_TOV);
+	atomic_set(&ddb_entry->relogin_timer, relogin_timer);
+
+	DEBUG2(ql4_printk(KERN_INFO, ha,
+			  "scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
+			  ddb_entry->fw_ddb_index, relogin_timer));
+
+	qla4xxx_login_flash_ddb(cls_sess);
+}
+
+static void qla4xxx_dpc_relogin(struct iscsi_cls_session *cls_sess)
+{
+	struct iscsi_session *sess;
+	struct ddb_entry *ddb_entry;
+	struct scsi_qla_host *ha;
+
+	sess = cls_sess->dd_data;
+	ddb_entry = sess->dd_data;
+	ha = ddb_entry->ha;
+
+	if (!(ddb_entry->ddb_type == FLASH_DDB))
+		return;
+
+	if (test_and_clear_bit(DF_RELOGIN, &ddb_entry->flags) &&
+	    !iscsi_is_session_online(cls_sess)) {
+		DEBUG2(ql4_printk(KERN_INFO, ha,
+				  "relogin issued\n"));
+		qla4xxx_relogin_flash_ddb(cls_sess);
+	}
+}
+
 void qla4xxx_wake_dpc(struct scsi_qla_host *ha)
 {
 	if (ha->dpc_thread)
@@ -2356,6 +2769,12 @@ dpc_post_reset_ha:
 	if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
 		qla4xxx_get_dhcp_ip_address(ha);
 
+	/* ---- relogin device? --- */
+	if (adapter_up(ha) &&
+	    test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
+		iscsi_host_for_each_session(ha->host, qla4xxx_dpc_relogin);
+	}
+
 	/* ---- link change? --- */
 	if (test_and_clear_bit(DPC_LINK_CHANGED, &ha->dpc_flags)) {
 		if (!test_bit(AF_LINK_UP, &ha->flags)) {
@@ -2368,8 +2787,12 @@ dpc_post_reset_ha:
 			 * fatal error recovery.  Therefore, the driver must
 			 * manually relogin to devices when recovering from
 			 * connection failures, logouts, expired KATO, etc. */
-
-			qla4xxx_relogin_all_devices(ha);
+			if (test_and_clear_bit(AF_BUILD_DDB_LIST, &ha->flags)) {
+				qla4xxx_build_ddb_list(ha, ha->is_reset);
+				iscsi_host_for_each_session(ha->host,
+						qla4xxx_login_flash_ddb);
+			} else
+				qla4xxx_relogin_all_devices(ha);
 		}
 	}
 }
@@ -2867,6 +3290,9 @@ static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
 			  " target ID %d\n", __func__, ddb_index[0],
 			  ddb_index[1]));
 
+	ha->pri_ddb_idx = ddb_index[0];
+	ha->sec_ddb_idx = ddb_index[1];
+
 exit_boot_info_free:
 	dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma);
 exit_boot_info:
@@ -3034,6 +3460,9 @@ static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
 		return ret;
 	}
 
+	if (ql4xdisablesysfsboot)
+		return QLA_SUCCESS;
+
 	if (ddb_index[0] == 0xffff)
 		goto sec_target;
 
@@ -3066,7 +3495,15 @@ static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
 	struct iscsi_boot_kobj *boot_kobj;
 
 	if (qla4xxx_get_boot_info(ha) != QLA_SUCCESS)
-		return 0;
+		return QLA_ERROR;
+
+	if (ql4xdisablesysfsboot) {
+		ql4_printk(KERN_INFO, ha,
+			   "%s: syfsboot disabled - driver will trigger login"
+			   "and publish session for discovery .\n", __func__);
+		return QLA_SUCCESS;
+	}
+
 
 	ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no);
 	if (!ha->boot_kset)
@@ -3108,7 +3545,7 @@ static int qla4xxx_setup_boot_info(struct scsi_qla_host *ha)
 	if (!boot_kobj)
 		goto put_host;
 
-	return 0;
+	return QLA_SUCCESS;
 
 put_host:
 	scsi_host_put(ha->host);
@@ -3174,9 +3611,507 @@ static void qla4xxx_create_chap_list(struct scsi_qla_host *ha)
 exit_chap_list:
 	dma_free_coherent(&ha->pdev->dev, chap_size,
 			chap_flash_data, chap_dma);
-	return;
 }
 
+static void qla4xxx_get_param_ddb(struct ddb_entry *ddb_entry,
+				  struct ql4_tuple_ddb *tddb)
+{
+	struct scsi_qla_host *ha;
+	struct iscsi_cls_session *cls_sess;
+	struct iscsi_cls_conn *cls_conn;
+	struct iscsi_session *sess;
+	struct iscsi_conn *conn;
+
+	DEBUG2(printk(KERN_INFO "Func: %s\n", __func__));
+	ha = ddb_entry->ha;
+	cls_sess = ddb_entry->sess;
+	sess = cls_sess->dd_data;
+	cls_conn = ddb_entry->conn;
+	conn = cls_conn->dd_data;
+
+	tddb->tpgt = sess->tpgt;
+	tddb->port = conn->persistent_port;
+	strncpy(tddb->iscsi_name, sess->targetname, ISCSI_NAME_SIZE);
+	strncpy(tddb->ip_addr, conn->persistent_address, DDB_IPADDR_LEN);
+}
+
+static void qla4xxx_convert_param_ddb(struct dev_db_entry *fw_ddb_entry,
+				      struct ql4_tuple_ddb *tddb)
+{
+	uint16_t options = 0;
+
+	tddb->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
+	memcpy(&tddb->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
+	       min(sizeof(tddb->iscsi_name), sizeof(fw_ddb_entry->iscsi_name)));
+
+	options = le16_to_cpu(fw_ddb_entry->options);
+	if (options & DDB_OPT_IPV6_DEVICE)
+		sprintf(tddb->ip_addr, "%pI6", fw_ddb_entry->ip_addr);
+	else
+		sprintf(tddb->ip_addr, "%pI4", fw_ddb_entry->ip_addr);
+
+	tddb->port = le16_to_cpu(fw_ddb_entry->port);
+}
+
+static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
+				     struct ql4_tuple_ddb *old_tddb,
+				     struct ql4_tuple_ddb *new_tddb)
+{
+	if (strcmp(old_tddb->iscsi_name, new_tddb->iscsi_name))
+		return QLA_ERROR;
+
+	if (strcmp(old_tddb->ip_addr, new_tddb->ip_addr))
+		return QLA_ERROR;
+
+	if (old_tddb->port != new_tddb->port)
+		return QLA_ERROR;
+
+	DEBUG2(ql4_printk(KERN_INFO, ha,
+			  "Match Found, fw[%d,%d,%s,%s], [%d,%d,%s,%s]",
+			  old_tddb->port, old_tddb->tpgt, old_tddb->ip_addr,
+			  old_tddb->iscsi_name, new_tddb->port, new_tddb->tpgt,
+			  new_tddb->ip_addr, new_tddb->iscsi_name));
+
+	return QLA_SUCCESS;
+}
+
+static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
+				     struct dev_db_entry *fw_ddb_entry)
+{
+	struct ddb_entry *ddb_entry;
+	struct ql4_tuple_ddb *fw_tddb = NULL;
+	struct ql4_tuple_ddb *tmp_tddb = NULL;
+	int idx;
+	int ret = QLA_ERROR;
+
+	fw_tddb = vzalloc(sizeof(*fw_tddb));
+	if (!fw_tddb) {
+		DEBUG2(ql4_printk(KERN_WARNING, ha,
+				  "Memory Allocation failed.\n"));
+		ret = QLA_SUCCESS;
+		goto exit_check;
+	}
+
+	tmp_tddb = vzalloc(sizeof(*tmp_tddb));
+	if (!tmp_tddb) {
+		DEBUG2(ql4_printk(KERN_WARNING, ha,
+				  "Memory Allocation failed.\n"));
+		ret = QLA_SUCCESS;
+		goto exit_check;
+	}
+
+	qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb);
+
+	for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
+		ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
+		if (ddb_entry == NULL)
+			continue;
+
+		qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
+		if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb)) {
+			ret = QLA_SUCCESS; /* found */
+			goto exit_check;
+		}
+	}
+
+exit_check:
+	if (fw_tddb)
+		vfree(fw_tddb);
+	if (tmp_tddb)
+		vfree(tmp_tddb);
+	return ret;
+}
+
+static int qla4xxx_is_flash_ddb_exists(struct scsi_qla_host *ha,
+				       struct list_head *list_nt,
+				       struct dev_db_entry *fw_ddb_entry)
+{
+	struct qla_ddb_index  *nt_ddb_idx, *nt_ddb_idx_tmp;
+	struct ql4_tuple_ddb *fw_tddb = NULL;
+	struct ql4_tuple_ddb *tmp_tddb = NULL;
+	int ret = QLA_ERROR;
+
+	fw_tddb = vzalloc(sizeof(*fw_tddb));
+	if (!fw_tddb) {
+		DEBUG2(ql4_printk(KERN_WARNING, ha,
+				  "Memory Allocation failed.\n"));
+		ret = QLA_SUCCESS;
+		goto exit_check;
+	}
+
+	tmp_tddb = vzalloc(sizeof(*tmp_tddb));
+	if (!tmp_tddb) {
+		DEBUG2(ql4_printk(KERN_WARNING, ha,
+				  "Memory Allocation failed.\n"));
+		ret = QLA_SUCCESS;
+		goto exit_check;
+	}
+
+	qla4xxx_convert_param_ddb(fw_ddb_entry, fw_tddb);
+
+	list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
+		qla4xxx_convert_param_ddb(&nt_ddb_idx->fw_ddb, tmp_tddb);
+		if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb)) {
+			ret = QLA_SUCCESS; /* found */
+			goto exit_check;
+		}
+	}
+
+exit_check:
+	if (fw_tddb)
+		vfree(fw_tddb);
+	if (tmp_tddb)
+		vfree(tmp_tddb);
+	return ret;
+}
+
+static void qla4xxx_free_nt_list(struct list_head *list_nt)
+{
+	struct qla_ddb_index  *nt_ddb_idx, *nt_ddb_idx_tmp;
+
+	/* Free up the normaltargets list */
+	list_for_each_entry_safe(nt_ddb_idx, nt_ddb_idx_tmp, list_nt, list) {
+		list_del_init(&nt_ddb_idx->list);
+		vfree(nt_ddb_idx);
+	}
+
+}
+
+static struct iscsi_endpoint *qla4xxx_get_ep_fwdb(struct scsi_qla_host *ha,
+					struct dev_db_entry *fw_ddb_entry)
+{
+	struct iscsi_endpoint *ep;
+	struct sockaddr_in *addr;
+	struct sockaddr_in6 *addr6;
+	struct sockaddr *dst_addr;
+	char *ip;
+
+	/* TODO: need to destroy on unload iscsi_endpoint*/
+	dst_addr = vmalloc(sizeof(*dst_addr));
+	if (!dst_addr)
+		return NULL;
+
+	if (fw_ddb_entry->options & DDB_OPT_IPV6_DEVICE) {
+		dst_addr->sa_family = AF_INET6;
+		addr6 = (struct sockaddr_in6 *)dst_addr;
+		ip = (char *)&addr6->sin6_addr;
+		memcpy(ip, fw_ddb_entry->ip_addr, IPv6_ADDR_LEN);
+		addr6->sin6_port = htons(le16_to_cpu(fw_ddb_entry->port));
+
+	} else {
+		dst_addr->sa_family = AF_INET;
+		addr = (struct sockaddr_in *)dst_addr;
+		ip = (char *)&addr->sin_addr;
+		memcpy(ip, fw_ddb_entry->ip_addr, IP_ADDR_LEN);
+		addr->sin_port = htons(le16_to_cpu(fw_ddb_entry->port));
+	}
+
+	ep = qla4xxx_ep_connect(ha->host, dst_addr, 0);
+	vfree(dst_addr);
+	return ep;
+}
+
+static int qla4xxx_verify_boot_idx(struct scsi_qla_host *ha, uint16_t idx)
+{
+	if (ql4xdisablesysfsboot)
+		return QLA_SUCCESS;
+	if (idx == ha->pri_ddb_idx || idx == ha->sec_ddb_idx)
+		return QLA_ERROR;
+	return QLA_SUCCESS;
+}
+
+static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
+					  struct ddb_entry *ddb_entry)
+{
+	ddb_entry->ddb_type = FLASH_DDB;
+	ddb_entry->fw_ddb_index = INVALID_ENTRY;
+	ddb_entry->fw_ddb_device_state = DDB_DS_NO_CONNECTION_ACTIVE;
+	ddb_entry->ha = ha;
+	ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
+	ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
+
+	atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
+	atomic_set(&ddb_entry->relogin_timer, 0);
+	atomic_set(&ddb_entry->relogin_retry_count, 0);
+
+	ddb_entry->default_relogin_timeout =
+		le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
+	ddb_entry->default_time2wait =
+		le16_to_cpu(ddb_entry->fw_ddb_entry.iscsi_def_time2wait);
+}
+
+static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
+{
+	uint32_t idx = 0;
+	uint32_t ip_idx[IP_ADDR_COUNT] = {0, 1, 2, 3}; /* 4 IP interfaces */
+	uint32_t sts[MBOX_REG_COUNT];
+	uint32_t ip_state;
+	unsigned long wtime;
+	int ret;
+
+	wtime = jiffies + (HZ * IP_CONFIG_TOV);
+	do {
+		for (idx = 0; idx < IP_ADDR_COUNT; idx++) {
+			if (ip_idx[idx] == -1)
+				continue;
+
+			ret = qla4xxx_get_ip_state(ha, 0, ip_idx[idx], sts);
+
+			if (ret == QLA_ERROR) {
+				ip_idx[idx] = -1;
+				continue;
+			}
+
+			ip_state = (sts[1] & IP_STATE_MASK) >> IP_STATE_SHIFT;
+
+			DEBUG2(ql4_printk(KERN_INFO, ha,
+					  "Waiting for IP state for idx = %d, state = 0x%x\n",
+					  ip_idx[idx], ip_state));
+			if (ip_state == IP_ADDRSTATE_UNCONFIGURED ||
+			    ip_state == IP_ADDRSTATE_INVALID ||
+			    ip_state == IP_ADDRSTATE_PREFERRED ||
+			    ip_state == IP_ADDRSTATE_DEPRICATED ||
+			    ip_state == IP_ADDRSTATE_DISABLING)
+				ip_idx[idx] = -1;
+
+		}
+
+		/* Break if all IP states checked */
+		if ((ip_idx[0] == -1) &&
+		    (ip_idx[1] == -1) &&
+		    (ip_idx[2] == -1) &&
+		    (ip_idx[3] == -1))
+			break;
+		schedule_timeout_uninterruptible(HZ);
+	} while (time_after(wtime, jiffies));
+}
+
+void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
+{
+	int max_ddbs;
+	int ret;
+	uint32_t idx = 0, next_idx = 0;
+	uint32_t state = 0, conn_err = 0;
+	uint16_t conn_id;
+	struct dev_db_entry *fw_ddb_entry;
+	struct ddb_entry *ddb_entry = NULL;
+	dma_addr_t fw_ddb_dma;
+	struct iscsi_cls_session *cls_sess;
+	struct iscsi_session *sess;
+	struct iscsi_cls_conn *cls_conn;
+	struct iscsi_endpoint *ep;
+	uint16_t cmds_max = 32, tmo = 0;
+	uint32_t initial_cmdsn = 0;
+	struct list_head list_st, list_nt; /* List of sendtargets */
+	struct qla_ddb_index  *st_ddb_idx, *st_ddb_idx_tmp;
+	int fw_idx_size;
+	unsigned long wtime;
+	struct qla_ddb_index  *nt_ddb_idx;
+
+	if (!test_bit(AF_LINK_UP, &ha->flags)) {
+		set_bit(AF_BUILD_DDB_LIST, &ha->flags);
+		ha->is_reset = is_reset;
+		return;
+	}
+	max_ddbs =  is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
+				     MAX_DEV_DB_ENTRIES;
+
+	fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
+				      &fw_ddb_dma);
+	if (fw_ddb_entry == NULL) {
+		DEBUG2(ql4_printk(KERN_ERR, ha, "Out of memory\n"));
+		goto exit_ddb_list;
+	}
+
+	INIT_LIST_HEAD(&list_st);
+	INIT_LIST_HEAD(&list_nt);
+	fw_idx_size = sizeof(struct qla_ddb_index);
+
+	for (idx = 0; idx < max_ddbs; idx = next_idx) {
+		ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry,
+					      fw_ddb_dma, NULL,
+					      &next_idx, &state, &conn_err,
+					      NULL, &conn_id);
+		if (ret == QLA_ERROR)
+			break;
+
+		if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
+			goto continue_next_st;
+
+		/* Check if ST, add to the list_st */
+		if (strlen((char *) fw_ddb_entry->iscsi_name) != 0)
+			goto continue_next_st;
+
+		st_ddb_idx = vzalloc(fw_idx_size);
+		if (!st_ddb_idx)
+			break;
+
+		st_ddb_idx->fw_ddb_idx = idx;
+
+		list_add_tail(&st_ddb_idx->list, &list_st);
+continue_next_st:
+		if (next_idx == 0)
+			break;
+	}
+
+	/* Before issuing conn open mbox, ensure all IPs states are configured
+	 * Note, conn open fails if IPs are not configured
+	 */
+	qla4xxx_wait_for_ip_configuration(ha);
+
+	/* Go thru the STs and fire the sendtargets by issuing conn open mbx */
+	list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
+		qla4xxx_conn_open(ha, st_ddb_idx->fw_ddb_idx);
+	}
+
+	/* Wait to ensure all sendtargets are done for min 12 sec wait */
+	tmo = ((ha->def_timeout < LOGIN_TOV) ? LOGIN_TOV : ha->def_timeout);
+	DEBUG2(ql4_printk(KERN_INFO, ha,
+			  "Default time to wait for build ddb %d\n", tmo));
+
+	wtime = jiffies + (HZ * tmo);
+	do {
+		list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st,
+					 list) {
+			ret = qla4xxx_get_fwddb_entry(ha,
+						      st_ddb_idx->fw_ddb_idx,
+						      NULL, 0, NULL, &next_idx,
+						      &state, &conn_err, NULL,
+						      NULL);
+			if (ret == QLA_ERROR)
+				continue;
+
+			if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
+			    state == DDB_DS_SESSION_FAILED) {
+				list_del_init(&st_ddb_idx->list);
+				vfree(st_ddb_idx);
+			}
+		}
+		schedule_timeout_uninterruptible(HZ / 10);
+	} while (time_after(wtime, jiffies));
+
+	/* Free up the sendtargets list */
+	list_for_each_entry_safe(st_ddb_idx, st_ddb_idx_tmp, &list_st, list) {
+		list_del_init(&st_ddb_idx->list);
+		vfree(st_ddb_idx);
+	}
+
+	for (idx = 0; idx < max_ddbs; idx = next_idx) {
+		ret = qla4xxx_get_fwddb_entry(ha, idx, fw_ddb_entry,
+					      fw_ddb_dma, NULL,
+					      &next_idx, &state, &conn_err,
+					      NULL, &conn_id);
+		if (ret == QLA_ERROR)
+			break;
+
+		if (qla4xxx_verify_boot_idx(ha, idx) != QLA_SUCCESS)
+			goto continue_next_nt;
+
+		/* Check if NT, then add to list it */
+		if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
+			goto continue_next_nt;
+
+		if (state == DDB_DS_NO_CONNECTION_ACTIVE ||
+		    state == DDB_DS_SESSION_FAILED) {
+			DEBUG2(ql4_printk(KERN_INFO, ha,
+					  "Adding  DDB to session = 0x%x\n",
+					  idx));
+			if (is_reset == INIT_ADAPTER) {
+				nt_ddb_idx = vmalloc(fw_idx_size);
+				if (!nt_ddb_idx)
+					break;
+
+				nt_ddb_idx->fw_ddb_idx = idx;
+
+				memcpy(&nt_ddb_idx->fw_ddb, fw_ddb_entry,
+				       sizeof(struct dev_db_entry));
+
+				if (qla4xxx_is_flash_ddb_exists(ha, &list_nt,
+						fw_ddb_entry) == QLA_SUCCESS) {
+					vfree(nt_ddb_idx);
+					goto continue_next_nt;
+				}
+				list_add_tail(&nt_ddb_idx->list, &list_nt);
+			} else if (is_reset == RESET_ADAPTER) {
+				if (qla4xxx_is_session_exists(ha,
+						   fw_ddb_entry) == QLA_SUCCESS)
+					goto continue_next_nt;
+			}
+
+			/* Create session object, with INVALID_ENTRY,
+			 * the targer_id would get set when we issue the login
+			 */
+			cls_sess = iscsi_session_setup(&qla4xxx_iscsi_transport,
+						ha->host, cmds_max,
+						sizeof(struct ddb_entry),
+						sizeof(struct ql4_task_data),
+						initial_cmdsn, INVALID_ENTRY);
+			if (!cls_sess)
+				goto exit_ddb_list;
+
+			/*
+			 * iscsi_session_setup increments the driver reference
+			 * count which wouldn't let the driver to be unloaded.
+			 * so calling module_put function to decrement the
+			 * reference count.
+			 **/
+			module_put(qla4xxx_iscsi_transport.owner);
+			sess = cls_sess->dd_data;
+			ddb_entry = sess->dd_data;
+			ddb_entry->sess = cls_sess;
+
+			cls_sess->recovery_tmo = ql4xsess_recovery_tmo;
+			memcpy(&ddb_entry->fw_ddb_entry, fw_ddb_entry,
+			       sizeof(struct dev_db_entry));
+
+			qla4xxx_setup_flash_ddb_entry(ha, ddb_entry);
+
+			cls_conn = iscsi_conn_setup(cls_sess,
+						    sizeof(struct qla_conn),
+						    conn_id);
+			if (!cls_conn)
+				goto exit_ddb_list;
+
+			ddb_entry->conn = cls_conn;
+
+			/* Setup ep, for displaying attributes in sysfs */
+			ep = qla4xxx_get_ep_fwdb(ha, fw_ddb_entry);
+			if (ep) {
+				ep->conn = cls_conn;
+				cls_conn->ep = ep;
+			} else {
+				DEBUG2(ql4_printk(KERN_ERR, ha,
+						  "Unable to get ep\n"));
+			}
+
+			/* Update sess/conn params */
+			qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess,
+						 cls_conn);
+
+			if (is_reset == RESET_ADAPTER) {
+				iscsi_block_session(cls_sess);
+				/* Use the relogin path to discover new devices
+				 *  by short-circuting the logic of setting
+				 *  timer to relogin - instead set the flags
+				 *  to initiate login right away.
+				 */
+				set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
+				set_bit(DF_RELOGIN, &ddb_entry->flags);
+			}
+		}
+continue_next_nt:
+		if (next_idx == 0)
+			break;
+	}
+exit_ddb_list:
+	qla4xxx_free_nt_list(&list_nt);
+	if (fw_ddb_entry)
+		dma_pool_free(ha->fw_ddb_dma_pool, fw_ddb_entry, fw_ddb_dma);
+
+	qla4xxx_free_ddb_index(ha);
+}
+
+
 /**
  * qla4xxx_probe_adapter - callback function to probe HBA
  * @pdev: pointer to pci_dev structure
@@ -3298,7 +4233,7 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev,
 	 * firmware
 	 * NOTE: interrupts enabled upon successful completion
 	 */
-	status = qla4xxx_initialize_adapter(ha);
+	status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
 	while ((!test_bit(AF_ONLINE, &ha->flags)) &&
 	    init_retry_count++ < MAX_INIT_RETRIES) {
 
@@ -3319,7 +4254,7 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev,
 		if (ha->isp_ops->reset_chip(ha) == QLA_ERROR)
 			continue;
 
-		status = qla4xxx_initialize_adapter(ha);
+		status = qla4xxx_initialize_adapter(ha, INIT_ADAPTER);
 	}
 
 	if (!test_bit(AF_ONLINE, &ha->flags)) {
@@ -3386,12 +4321,16 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev,
 	       ha->host_no, ha->firmware_version[0], ha->firmware_version[1],
 	       ha->patch_number, ha->build_number);
 
-	qla4xxx_create_chap_list(ha);
-
 	if (qla4xxx_setup_boot_info(ha))
 		ql4_printk(KERN_ERR, ha, "%s:ISCSI boot info setup failed\n",
 			   __func__);
 
+		/* Perform the build ddb list and login to each */
+	qla4xxx_build_ddb_list(ha, INIT_ADAPTER);
+	iscsi_host_for_each_session(ha->host, qla4xxx_login_flash_ddb);
+
+	qla4xxx_create_chap_list(ha);
+
 	qla4xxx_create_ifaces(ha);
 	return 0;
 
@@ -3449,6 +4388,38 @@ static void qla4xxx_prevent_other_port_reinit(struct scsi_qla_host *ha)
 	}
 }
 
+static void qla4xxx_destroy_fw_ddb_session(struct scsi_qla_host *ha)
+{
+	struct ddb_entry *ddb_entry;
+	int options;
+	int idx;
+
+	for (idx = 0; idx < MAX_DDB_ENTRIES; idx++) {
+
+		ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, idx);
+		if ((ddb_entry != NULL) &&
+		    (ddb_entry->ddb_type == FLASH_DDB)) {
+
+			options = LOGOUT_OPTION_CLOSE_SESSION;
+			if (qla4xxx_session_logout_ddb(ha, ddb_entry, options)
+			    == QLA_ERROR)
+				ql4_printk(KERN_ERR, ha, "%s: Logout failed\n",
+					   __func__);
+
+			qla4xxx_clear_ddb_entry(ha, ddb_entry->fw_ddb_index);
+			/*
+			 * we have decremented the reference count of the driver
+			 * when we setup the session to have the driver unload
+			 * to be seamless without actually destroying the
+			 * session
+			 **/
+			try_module_get(qla4xxx_iscsi_transport.owner);
+			iscsi_destroy_endpoint(ddb_entry->conn->ep);
+			qla4xxx_free_ddb(ha, ddb_entry);
+			iscsi_session_teardown(ddb_entry->sess);
+		}
+	}
+}
 /**
  * qla4xxx_remove_adapter - calback function to remove adapter.
  * @pci_dev: PCI device pointer
@@ -3465,9 +4436,11 @@ static void __devexit qla4xxx_remove_adapter(struct pci_dev *pdev)
 	/* destroy iface from sysfs */
 	qla4xxx_destroy_ifaces(ha);
 
-	if (ha->boot_kset)
+	if ((!ql4xdisablesysfsboot) && ha->boot_kset)
 		iscsi_boot_destroy_kset(ha->boot_kset);
 
+	qla4xxx_destroy_fw_ddb_session(ha);
+
 	scsi_remove_host(ha->host);
 
 	qla4xxx_free_adapter(ha);
@@ -4115,7 +5088,7 @@ static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
 
 		qla4_8xxx_idc_unlock(ha);
 		clear_bit(AF_FW_RECOVERY, &ha->flags);
-		rval = qla4xxx_initialize_adapter(ha);
+		rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
 		qla4_8xxx_idc_lock(ha);
 
 		if (rval != QLA_SUCCESS) {
@@ -4151,7 +5124,7 @@ static uint32_t qla4_8xxx_error_recovery(struct scsi_qla_host *ha)
 		if ((qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE) ==
 		    QLA82XX_DEV_READY)) {
 			clear_bit(AF_FW_RECOVERY, &ha->flags);
-			rval = qla4xxx_initialize_adapter(ha);
+			rval = qla4xxx_initialize_adapter(ha, RESET_ADAPTER);
 			if (rval == QLA_SUCCESS) {
 				ret = qla4xxx_request_irqs(ha);
 				if (ret) {