[SCSI] qla4xxx: Boot from SAN support for open-iscsi

Hook qla4xxx in fw boot sysfs interface so iscsi tools
can use the info to create boot sessions.

Signed-off-by: Manish Rangankar <manish.rangankar@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

7 files changed, 650 insertions, 2 deletions

diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h
index 6e2be9d963ac..30efb6c6594c 100644
--- a/drivers/scsi/qla4xxx/ql4_def.h
+++ b/drivers/scsi/qla4xxx/ql4_def.h
@@ -276,6 +276,8 @@ struct ql82xx_hw_data {
 	uint32_t flt_region_boot;
 	uint32_t flt_region_bootload;
 	uint32_t flt_region_fw;
+
+	uint32_t flt_iscsi_param;
 	uint32_t reserved;
 };
 
@@ -343,6 +345,41 @@ struct ipaddress_config {
 	struct in6_addr ipv6_default_router_addr;
 };
 
+#define QL4_CHAP_MAX_NAME_LEN 256
+#define QL4_CHAP_MAX_SECRET_LEN 100
+
+struct ql4_chap_format {
+	u8  intr_chap_name[QL4_CHAP_MAX_NAME_LEN];
+	u8  intr_secret[QL4_CHAP_MAX_SECRET_LEN];
+	u8  target_chap_name[QL4_CHAP_MAX_NAME_LEN];
+	u8  target_secret[QL4_CHAP_MAX_SECRET_LEN];
+	u16 intr_chap_name_length;
+	u16 intr_secret_length;
+	u16 target_chap_name_length;
+	u16 target_secret_length;
+};
+
+struct ip_address_format {
+	u8 ip_type;
+	u8 ip_address[16];
+};
+
+struct	ql4_conn_info {
+	u16	dest_port;
+	struct	ip_address_format dest_ipaddr;
+	struct	ql4_chap_format chap;
+};
+
+struct ql4_boot_session_info {
+	u8	target_name[224];
+	struct	ql4_conn_info conn_list[1];
+};
+
+struct ql4_boot_tgt_info {
+	struct ql4_boot_session_info boot_pri_sess;
+	struct ql4_boot_session_info boot_sec_sess;
+};
+
 /*
  * Linux Host Adapter structure
  */
@@ -444,7 +481,7 @@ struct scsi_qla_host {
 	/* --- From FlashSysInfo --- */
 	uint8_t my_mac[MAC_ADDR_LEN];
 	uint8_t serial_number[16];
-
+	uint16_t port_num;
 	/* --- From GetFwState --- */
 	uint32_t firmware_state;
 	uint32_t addl_fw_state;
@@ -569,6 +606,9 @@ struct scsi_qla_host {
 #define CHAP_DMA_BLOCK_SIZE    512
 	struct workqueue_struct *task_wq;
 	unsigned long ddb_idx_map[MAX_DDB_ENTRIES / BITS_PER_LONG];
+#define SYSFS_FLAG_FW_SEL_BOOT 2
+	struct iscsi_boot_kset *boot_kset;
+	struct ql4_boot_tgt_info boot_tgt;
 };
 
 struct ql4_task_data {
diff --git a/drivers/scsi/qla4xxx/ql4_fw.h b/drivers/scsi/qla4xxx/ql4_fw.h
index 99098d51543b..9dc439b0d75f 100644
--- a/drivers/scsi/qla4xxx/ql4_fw.h
+++ b/drivers/scsi/qla4xxx/ql4_fw.h
@@ -146,6 +146,13 @@ struct isp_reg {
 #define QL4022_NVRAM_SEM_MASK	(QL4022_RESOURCE_MASK_BASE_CODE << (10+16))
 #define QL4022_FLASH_SEM_MASK	(QL4022_RESOURCE_MASK_BASE_CODE << (13+16))
 
+/* nvram address for 4032 */
+#define NVRAM_PORT0_BOOT_MODE		0x03b1
+#define NVRAM_PORT0_BOOT_PRI_TGT	0x03b2
+#define NVRAM_PORT0_BOOT_SEC_TGT	0x03bb
+#define NVRAM_PORT1_BOOT_MODE		0x07b1
+#define NVRAM_PORT1_BOOT_PRI_TGT	0x07b2
+#define NVRAM_PORT1_BOOT_SEC_TGT	0x07bb
 
 
 /* Page # defines for 4022 */
@@ -298,6 +305,7 @@ struct qla_flt_header {
 #define FLT_REG_FW_82		0x74
 #define FLT_REG_GOLD_FW_82	0x75
 #define FLT_REG_BOOT_CODE_82	0x78
+#define FLT_REG_ISCSI_PARAM	0x65
 
 struct qla_flt_region {
 	uint32_t code;
@@ -733,7 +741,10 @@ struct dev_db_entry {
 	uint8_t tcp_rcv_wsf;	/* 1C7 */
 	uint32_t stat_sn;	/* 1C8-1CB */
 	uint32_t exp_stat_sn;	/* 1CC-1CF */
-	uint8_t res6[0x30];	/* 1D0-1FF */
+	uint8_t res6[0x2b];	/* 1D0-1FB */
+#define DDB_VALID_COOKIE	0x9034
+	uint16_t cookie;	/* 1FC-1FD */
+	uint16_t len;		/* 1FE-1FF */
 };
 
 /*************************************************************************/
@@ -745,6 +756,14 @@ struct dev_db_entry {
 #define FLASH_EOF_OFFSET	(FLASH_DEFAULTBLOCKSIZE-8) /* 4 bytes
 							    * for EOF
 							    * signature */
+#define FLASH_RAW_ACCESS_ADDR	0x8e000000
+
+#define BOOT_PARAM_OFFSET_PORT0 0x3b0
+#define BOOT_PARAM_OFFSET_PORT1 0x7b0
+
+#define FLASH_OFFSET_DB_INFO	0x05000000
+#define FLASH_OFFSET_DB_END	(FLASH_OFFSET_DB_INFO + 0x7fff)
+
 
 struct sys_info_phys_addr {
 	uint8_t address[6];	/* 00-05 */
diff --git a/drivers/scsi/qla4xxx/ql4_glbl.h b/drivers/scsi/qla4xxx/ql4_glbl.h
index 85b8253b3fc2..98d4b17e8b10 100644
--- a/drivers/scsi/qla4xxx/ql4_glbl.h
+++ b/drivers/scsi/qla4xxx/ql4_glbl.h
@@ -60,6 +60,7 @@ int qla4xxx_get_acb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
 		    uint32_t *mbox_sts, dma_addr_t acb_dma);
 void qla4xxx_mark_device_missing(struct iscsi_cls_session *cls_session);
 u16 rd_nvram_word(struct scsi_qla_host *ha, int offset);
+u8 rd_nvram_byte(struct scsi_qla_host *ha, int offset);
 void qla4xxx_get_crash_record(struct scsi_qla_host *ha);
 int qla4xxx_is_nvram_configuration_valid(struct scsi_qla_host *ha);
 int qla4xxx_about_firmware(struct scsi_qla_host *ha);
@@ -154,6 +155,12 @@ int qla4xxx_get_mgmt_data(struct scsi_qla_host *ha, uint16_t fw_ddb_index,
 			  uint16_t stats_size, dma_addr_t stats_dma);
 void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
 				       struct ddb_entry *ddb_entry);
+int qla4xxx_bootdb_by_index(struct scsi_qla_host *ha,
+			    struct dev_db_entry *fw_ddb_entry,
+			    dma_addr_t fw_ddb_entry_dma, uint16_t ddb_index);
+int qla4xxx_get_chap(struct scsi_qla_host *ha, char *username,
+		     char *password, uint16_t idx);
+
 /* BSG Functions */
 int qla4xxx_bsg_request(struct bsg_job *bsg_job);
 int qla4xxx_process_vendor_specific(struct bsg_job *bsg_job);
diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c
index 21884019dab8..72ec7e092296 100644
--- a/drivers/scsi/qla4xxx/ql4_mbx.c
+++ b/drivers/scsi/qla4xxx/ql4_mbx.c
@@ -1262,6 +1262,83 @@ int qla4xxx_set_flash(struct scsi_qla_host *ha, dma_addr_t dma_addr,
 	return status;
 }
 
+int qla4xxx_bootdb_by_index(struct scsi_qla_host *ha,
+			    struct dev_db_entry *fw_ddb_entry,
+			    dma_addr_t fw_ddb_entry_dma, uint16_t ddb_index)
+{
+	uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
+	uint32_t dev_db_end_offset;
+	int status = QLA_ERROR;
+
+	memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
+
+	dev_db_start_offset += (ddb_index * sizeof(*fw_ddb_entry));
+	dev_db_end_offset = FLASH_OFFSET_DB_END;
+
+	if (dev_db_start_offset > dev_db_end_offset) {
+		DEBUG2(ql4_printk(KERN_ERR, ha,
+				  "%s:Invalid DDB index %d", __func__,
+				  ddb_index));
+		goto exit_bootdb_failed;
+	}
+
+	if (qla4xxx_get_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
+			      sizeof(*fw_ddb_entry)) != QLA_SUCCESS) {
+		ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
+			   "failed\n", ha->host_no, __func__);
+		goto exit_bootdb_failed;
+	}
+
+	if (fw_ddb_entry->cookie == DDB_VALID_COOKIE)
+		status = QLA_SUCCESS;
+
+exit_bootdb_failed:
+	return status;
+}
+
+int qla4xxx_get_chap(struct scsi_qla_host *ha, char *username, char *password,
+		     uint16_t idx)
+{
+	int ret = 0;
+	int rval = QLA_ERROR;
+	uint32_t offset = 0;
+	struct ql4_chap_table *chap_table;
+	dma_addr_t chap_dma;
+
+	chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
+	if (chap_table == NULL) {
+		ret = -ENOMEM;
+		goto exit_get_chap;
+	}
+
+	memset(chap_table, 0, sizeof(struct ql4_chap_table));
+
+	offset = 0x06000000 | (idx * sizeof(struct ql4_chap_table));
+
+	rval = qla4xxx_get_flash(ha, chap_dma, offset,
+				 sizeof(struct ql4_chap_table));
+	if (rval != QLA_SUCCESS) {
+		ret = -EINVAL;
+		goto exit_get_chap;
+	}
+
+	DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n",
+		__le16_to_cpu(chap_table->cookie)));
+
+	if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) {
+		ql4_printk(KERN_ERR, ha, "No valid chap entry found\n");
+		goto exit_get_chap;
+	}
+
+	strncpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
+	strncpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
+	chap_table->cookie = __constant_cpu_to_le16(CHAP_VALID_COOKIE);
+
+exit_get_chap:
+	dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
+	return ret;
+}
+
 static int qla4xxx_set_chap(struct scsi_qla_host *ha, char *username,
 			    char *password, uint16_t idx, int bidi)
 {
diff --git a/drivers/scsi/qla4xxx/ql4_nvram.c b/drivers/scsi/qla4xxx/ql4_nvram.c
index b4b859b2d47e..7851f314ba96 100644
--- a/drivers/scsi/qla4xxx/ql4_nvram.c
+++ b/drivers/scsi/qla4xxx/ql4_nvram.c
@@ -156,6 +156,27 @@ u16 rd_nvram_word(struct scsi_qla_host * ha, int offset)
 	return val;
 }
 
+u8 rd_nvram_byte(struct scsi_qla_host *ha, int offset)
+{
+	u16 val = 0;
+	u8 rval = 0;
+	int index = 0;
+
+	if (offset & 0x1)
+		index = (offset - 1) / 2;
+	else
+		index = offset / 2;
+
+	val = le16_to_cpu(rd_nvram_word(ha, index));
+
+	if (offset & 0x1)
+		rval = (u8)((val & 0xff00) >> 8);
+	else
+		rval = (u8)((val & 0x00ff));
+
+	return rval;
+}
+
 int qla4xxx_is_nvram_configuration_valid(struct scsi_qla_host * ha)
 {
 	int status = QLA_ERROR;
diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c
index fdfe27b38698..52a1063e4fd5 100644
--- a/drivers/scsi/qla4xxx/ql4_nx.c
+++ b/drivers/scsi/qla4xxx/ql4_nx.c
@@ -2020,6 +2020,9 @@ qla4_8xxx_get_flt_info(struct scsi_qla_host *ha, uint32_t flt_addr)
 		case FLT_REG_BOOTLOAD_82:
 			hw->flt_region_bootload = start;
 			break;
+		case FLT_REG_ISCSI_PARAM:
+			hw->flt_iscsi_param =  start;
+			break;
 		}
 	}
 	goto done;
@@ -2258,6 +2261,7 @@ int qla4_8xxx_get_sys_info(struct scsi_qla_host *ha)
 	}
 
 	/* Save M.A.C. address & serial_number */
+	ha->port_num = sys_info->port_num;
 	memcpy(ha->my_mac, &sys_info->mac_addr[0],
 	    min(sizeof(ha->my_mac), sizeof(sys_info->mac_addr)));
 	memcpy(ha->serial_number, &sys_info->serial_number,
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index bfb3d37612fc..15355f95f560 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -6,6 +6,8 @@
  */
 #include <linux/moduleparam.h>
 #include <linux/slab.h>
+#include <linux/blkdev.h>
+#include <linux/iscsi_boot_sysfs.h>
 
 #include <scsi/scsi_tcq.h>
 #include <scsi/scsicam.h>
@@ -2551,6 +2553,477 @@ uint16_t qla4_8xxx_rd_shdw_rsp_q_in(struct scsi_qla_host *ha)
 	return (uint16_t)le32_to_cpu(readl(&ha->qla4_8xxx_reg->rsp_q_in));
 }
 
+static ssize_t qla4xxx_show_boot_eth_info(void *data, int type, char *buf)
+{
+	struct scsi_qla_host *ha = data;
+	char *str = buf;
+	int rc;
+
+	switch (type) {
+	case ISCSI_BOOT_ETH_FLAGS:
+		rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
+		break;
+	case ISCSI_BOOT_ETH_INDEX:
+		rc = sprintf(str, "0\n");
+		break;
+	case ISCSI_BOOT_ETH_MAC:
+		rc = sysfs_format_mac(str, ha->my_mac,
+				      MAC_ADDR_LEN);
+		break;
+	default:
+		rc = -ENOSYS;
+		break;
+	}
+	return rc;
+}
+
+static mode_t qla4xxx_eth_get_attr_visibility(void *data, int type)
+{
+	int rc;
+
+	switch (type) {
+	case ISCSI_BOOT_ETH_FLAGS:
+	case ISCSI_BOOT_ETH_MAC:
+	case ISCSI_BOOT_ETH_INDEX:
+		rc = S_IRUGO;
+		break;
+	default:
+		rc = 0;
+		break;
+	}
+	return rc;
+}
+
+static ssize_t qla4xxx_show_boot_ini_info(void *data, int type, char *buf)
+{
+	struct scsi_qla_host *ha = data;
+	char *str = buf;
+	int rc;
+
+	switch (type) {
+	case ISCSI_BOOT_INI_INITIATOR_NAME:
+		rc = sprintf(str, "%s\n", ha->name_string);
+		break;
+	default:
+		rc = -ENOSYS;
+		break;
+	}
+	return rc;
+}
+
+static mode_t qla4xxx_ini_get_attr_visibility(void *data, int type)
+{
+	int rc;
+
+	switch (type) {
+	case ISCSI_BOOT_INI_INITIATOR_NAME:
+		rc = S_IRUGO;
+		break;
+	default:
+		rc = 0;
+		break;
+	}
+	return rc;
+}
+
+static ssize_t
+qla4xxx_show_boot_tgt_info(struct ql4_boot_session_info *boot_sess, int type,
+			   char *buf)
+{
+	struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
+	char *str = buf;
+	int rc;
+
+	switch (type) {
+	case ISCSI_BOOT_TGT_NAME:
+		rc = sprintf(buf, "%s\n", (char *)&boot_sess->target_name);
+		break;
+	case ISCSI_BOOT_TGT_IP_ADDR:
+		if (boot_sess->conn_list[0].dest_ipaddr.ip_type == 0x1)
+			rc = sprintf(buf, "%pI4\n",
+				     &boot_conn->dest_ipaddr.ip_address);
+		else
+			rc = sprintf(str, "%pI6\n",
+				     &boot_conn->dest_ipaddr.ip_address);
+		break;
+	case ISCSI_BOOT_TGT_PORT:
+			rc = sprintf(str, "%d\n", boot_conn->dest_port);
+		break;
+	case ISCSI_BOOT_TGT_CHAP_NAME:
+		rc = sprintf(str,  "%.*s\n",
+			     boot_conn->chap.target_chap_name_length,
+			     (char *)&boot_conn->chap.target_chap_name);
+		break;
+	case ISCSI_BOOT_TGT_CHAP_SECRET:
+		rc = sprintf(str,  "%.*s\n",
+			     boot_conn->chap.target_secret_length,
+			     (char *)&boot_conn->chap.target_secret);
+		break;
+	case ISCSI_BOOT_TGT_REV_CHAP_NAME:
+		rc = sprintf(str,  "%.*s\n",
+			     boot_conn->chap.intr_chap_name_length,
+			     (char *)&boot_conn->chap.intr_chap_name);
+		break;
+	case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
+		rc = sprintf(str,  "%.*s\n",
+			     boot_conn->chap.intr_secret_length,
+			     (char *)&boot_conn->chap.intr_secret);
+		break;
+	case ISCSI_BOOT_TGT_FLAGS:
+		rc = sprintf(str, "%d\n", SYSFS_FLAG_FW_SEL_BOOT);
+		break;
+	case ISCSI_BOOT_TGT_NIC_ASSOC:
+		rc = sprintf(str, "0\n");
+		break;
+	default:
+		rc = -ENOSYS;
+		break;
+	}
+	return rc;
+}
+
+static ssize_t qla4xxx_show_boot_tgt_pri_info(void *data, int type, char *buf)
+{
+	struct scsi_qla_host *ha = data;
+	struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_pri_sess);
+
+	return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
+}
+
+static ssize_t qla4xxx_show_boot_tgt_sec_info(void *data, int type, char *buf)
+{
+	struct scsi_qla_host *ha = data;
+	struct ql4_boot_session_info *boot_sess = &(ha->boot_tgt.boot_sec_sess);
+
+	return qla4xxx_show_boot_tgt_info(boot_sess, type, buf);
+}
+
+static mode_t qla4xxx_tgt_get_attr_visibility(void *data, int type)
+{
+	int rc;
+
+	switch (type) {
+	case ISCSI_BOOT_TGT_NAME:
+	case ISCSI_BOOT_TGT_IP_ADDR:
+	case ISCSI_BOOT_TGT_PORT:
+	case ISCSI_BOOT_TGT_CHAP_NAME:
+	case ISCSI_BOOT_TGT_CHAP_SECRET:
+	case ISCSI_BOOT_TGT_REV_CHAP_NAME:
+	case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
+	case ISCSI_BOOT_TGT_NIC_ASSOC:
+	case ISCSI_BOOT_TGT_FLAGS:
+		rc = S_IRUGO;
+		break;
+	default:
+		rc = 0;
+		break;
+	}
+	return rc;
+}
+
+static void qla4xxx_boot_release(void *data)
+{
+	struct scsi_qla_host *ha = data;
+
+	scsi_host_put(ha->host);
+}
+
+static int get_fw_boot_info(struct scsi_qla_host *ha, uint16_t ddb_index[])
+{
+	dma_addr_t buf_dma;
+	uint32_t addr, pri_addr, sec_addr;
+	uint32_t offset;
+	uint16_t func_num;
+	uint8_t val;
+	uint8_t *buf = NULL;
+	size_t size = 13 * sizeof(uint8_t);
+	int ret = QLA_SUCCESS;
+
+	func_num = PCI_FUNC(ha->pdev->devfn);
+
+	DEBUG2(ql4_printk(KERN_INFO, ha,
+			  "%s: Get FW  boot info for 0x%x func %d\n", __func__,
+			  (is_qla4032(ha) ? PCI_DEVICE_ID_QLOGIC_ISP4032 :
+			   PCI_DEVICE_ID_QLOGIC_ISP8022), func_num));
+
+	if (is_qla4032(ha)) {
+		if (func_num == 1) {
+			addr = NVRAM_PORT0_BOOT_MODE;
+			pri_addr = NVRAM_PORT0_BOOT_PRI_TGT;
+			sec_addr = NVRAM_PORT0_BOOT_SEC_TGT;
+		} else if (func_num == 3) {
+			addr = NVRAM_PORT1_BOOT_MODE;
+			pri_addr = NVRAM_PORT1_BOOT_PRI_TGT;
+			sec_addr = NVRAM_PORT1_BOOT_SEC_TGT;
+		} else {
+			ret = QLA_ERROR;
+			goto exit_boot_info;
+		}
+
+		/* Check Boot Mode */
+		val = rd_nvram_byte(ha, addr);
+		if (!(val & 0x07)) {
+			DEBUG2(ql4_printk(KERN_ERR, ha,
+					  "%s: Failed Boot options : 0x%x\n",
+					  __func__, val));
+			ret = QLA_ERROR;
+			goto exit_boot_info;
+		}
+
+		/* get primary valid target index */
+		val = rd_nvram_byte(ha, pri_addr);
+		if (val & BIT_7)
+			ddb_index[0] = (val & 0x7f);
+		else
+			ddb_index[0] = 0;
+
+		/* get secondary valid target index */
+		val = rd_nvram_byte(ha, sec_addr);
+		if (val & BIT_7)
+			ddb_index[1] = (val & 0x7f);
+		else
+			ddb_index[1] = 1;
+
+	} else if (is_qla8022(ha)) {
+		buf = dma_alloc_coherent(&ha->pdev->dev, size,
+					 &buf_dma, GFP_KERNEL);
+		if (!buf) {
+			DEBUG2(ql4_printk(KERN_ERR, ha,
+					  "%s: Unable to allocate dma buffer\n",
+					   __func__));
+			ret = QLA_ERROR;
+			goto exit_boot_info;
+		}
+
+		if (ha->port_num == 0)
+			offset = BOOT_PARAM_OFFSET_PORT0;
+		else if (ha->port_num == 1)
+			offset = BOOT_PARAM_OFFSET_PORT1;
+		else {
+			ret = QLA_ERROR;
+			goto exit_boot_info_free;
+		}
+		addr = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_iscsi_param * 4) +
+		       offset;
+		if (qla4xxx_get_flash(ha, buf_dma, addr,
+				      13 * sizeof(uint8_t)) != QLA_SUCCESS) {
+			DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
+					  "failed\n", ha->host_no, __func__));
+			ret = QLA_ERROR;
+			goto exit_boot_info_free;
+		}
+		/* Check Boot Mode */
+		if (!(buf[1] & 0x07)) {
+			DEBUG2(ql4_printk(KERN_INFO, ha,
+					  "Failed: Boot options : 0x%x\n",
+					  buf[1]));
+			ret = QLA_ERROR;
+			goto exit_boot_info_free;
+		}
+
+		/* get primary valid target index */
+		if (buf[2] & BIT_7)
+			ddb_index[0] = buf[2] & 0x7f;
+		else
+			ddb_index[0] = 0;
+
+		/* get secondary valid target index */
+		if (buf[11] & BIT_7)
+			ddb_index[1] = buf[11] & 0x7f;
+		else
+			ddb_index[1] = 1;
+
+	} else {
+		ret = QLA_ERROR;
+		goto exit_boot_info;
+	}
+
+	DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Primary target ID %d, Secondary"
+			  " target ID %d\n", __func__, ddb_index[0],
+			  ddb_index[1]));
+
+exit_boot_info_free:
+	dma_free_coherent(&ha->pdev->dev, size, buf, buf_dma);
+exit_boot_info:
+	return ret;
+}
+
+static int qla4xxx_get_boot_target(struct scsi_qla_host *ha,
+				   struct ql4_boot_session_info *boot_sess,
+				   uint16_t ddb_index)
+{
+	struct ql4_conn_info *boot_conn = &boot_sess->conn_list[0];
+	struct dev_db_entry *fw_ddb_entry;
+	dma_addr_t fw_ddb_entry_dma;
+	uint16_t idx;
+	uint16_t options;
+	int ret = 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(ql4_printk(KERN_ERR, ha,
+				  "%s: Unable to allocate dma buffer.\n",
+				  __func__));
+		ret = QLA_ERROR;
+		return ret;
+	}
+
+	if (qla4xxx_bootdb_by_index(ha, fw_ddb_entry,
+				   fw_ddb_entry_dma, ddb_index)) {
+		DEBUG2(ql4_printk(KERN_ERR, ha,
+				  "%s: Flash DDB read Failed\n", __func__));
+		ret = QLA_ERROR;
+		goto exit_boot_target;
+	}
+
+	/* Update target name and IP from DDB */
+	memcpy(boot_sess->target_name, fw_ddb_entry->iscsi_name,
+	       min(sizeof(boot_sess->target_name),
+		   sizeof(fw_ddb_entry->iscsi_name)));
+
+	options = le16_to_cpu(fw_ddb_entry->options);
+	if (options & DDB_OPT_IPV6_DEVICE) {
+		memcpy(&boot_conn->dest_ipaddr.ip_address,
+		       &fw_ddb_entry->ip_addr[0], IPv6_ADDR_LEN);
+	} else {
+		boot_conn->dest_ipaddr.ip_type = 0x1;
+		memcpy(&boot_conn->dest_ipaddr.ip_address,
+		       &fw_ddb_entry->ip_addr[0], IP_ADDR_LEN);
+	}
+
+	boot_conn->dest_port = le16_to_cpu(fw_ddb_entry->port);
+
+	/* update chap information */
+	idx = __le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
+
+	if (BIT_7 & le16_to_cpu(fw_ddb_entry->iscsi_options))	{
+
+		DEBUG2(ql4_printk(KERN_INFO, ha, "Setting chap\n"));
+
+		ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap.
+				       target_chap_name,
+				       (char *)&boot_conn->chap.target_secret,
+				       idx);
+		if (ret) {
+			ql4_printk(KERN_ERR, ha, "Failed to set chap\n");
+			ret = QLA_ERROR;
+			goto exit_boot_target;
+		}
+
+		boot_conn->chap.target_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
+		boot_conn->chap.target_secret_length = QL4_CHAP_MAX_SECRET_LEN;
+	}
+
+	if (BIT_4 & le16_to_cpu(fw_ddb_entry->iscsi_options)) {
+
+		DEBUG2(ql4_printk(KERN_INFO, ha, "Setting BIDI chap\n"));
+
+		ret = qla4xxx_get_chap(ha, (char *)&boot_conn->chap.
+				       intr_chap_name,
+				       (char *)&boot_conn->chap.intr_secret,
+				       (idx + 1));
+		if (ret) {
+			ql4_printk(KERN_ERR, ha, "Failed to set BIDI chap\n");
+			ret = QLA_ERROR;
+			goto exit_boot_target;
+		}
+
+		boot_conn->chap.intr_chap_name_length = QL4_CHAP_MAX_NAME_LEN;
+		boot_conn->chap.intr_secret_length = QL4_CHAP_MAX_SECRET_LEN;
+	}
+
+exit_boot_target:
+	dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
+			  fw_ddb_entry, fw_ddb_entry_dma);
+	return ret;
+}
+
+static int qla4xxx_get_boot_info(struct scsi_qla_host *ha)
+{
+	uint16_t ddb_index[2];
+	int ret = QLA_SUCCESS;
+
+	memset(ddb_index, 0, sizeof(ddb_index));
+	ret = get_fw_boot_info(ha, ddb_index);
+	if (ret != QLA_SUCCESS) {
+		DEBUG2(ql4_printk(KERN_ERR, ha,
+				  "%s: Failed to set boot info.\n", __func__));
+		return ret;
+	}
+
+	ret = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_pri_sess),
+				      ddb_index[0]);
+	if (ret != QLA_SUCCESS) {
+		DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Failed to get "
+				  "primary target\n", __func__));
+	}
+
+	ret = qla4xxx_get_boot_target(ha, &(ha->boot_tgt.boot_sec_sess),
+				      ddb_index[1]);
+	if (ret != QLA_SUCCESS) {
+		DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Failed to get "
+				  "secondary target\n", __func__));
+	}
+	return ret;
+}
+
+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;
+
+	ha->boot_kset = iscsi_boot_create_host_kset(ha->host->host_no);
+	if (!ha->boot_kset)
+		goto kset_free;
+
+	if (!scsi_host_get(ha->host))
+		goto kset_free;
+	boot_kobj = iscsi_boot_create_target(ha->boot_kset, 0, ha,
+					     qla4xxx_show_boot_tgt_pri_info,
+					     qla4xxx_tgt_get_attr_visibility,
+					     qla4xxx_boot_release);
+	if (!boot_kobj)
+		goto put_host;
+
+	if (!scsi_host_get(ha->host))
+		goto kset_free;
+	boot_kobj = iscsi_boot_create_target(ha->boot_kset, 1, ha,
+					     qla4xxx_show_boot_tgt_sec_info,
+					     qla4xxx_tgt_get_attr_visibility,
+					     qla4xxx_boot_release);
+	if (!boot_kobj)
+		goto put_host;
+
+	if (!scsi_host_get(ha->host))
+		goto kset_free;
+	boot_kobj = iscsi_boot_create_initiator(ha->boot_kset, 0, ha,
+					       qla4xxx_show_boot_ini_info,
+					       qla4xxx_ini_get_attr_visibility,
+					       qla4xxx_boot_release);
+	if (!boot_kobj)
+		goto put_host;
+
+	if (!scsi_host_get(ha->host))
+		goto kset_free;
+	boot_kobj = iscsi_boot_create_ethernet(ha->boot_kset, 0, ha,
+					       qla4xxx_show_boot_eth_info,
+					       qla4xxx_eth_get_attr_visibility,
+					       qla4xxx_boot_release);
+	if (!boot_kobj)
+		goto put_host;
+
+	return 0;
+
+put_host:
+	scsi_host_put(ha->host);
+kset_free:
+	iscsi_boot_destroy_kset(ha->boot_kset);
+	return -ENOMEM;
+}
+
 /**
  * qla4xxx_probe_adapter - callback function to probe HBA
  * @pdev: pointer to pci_dev structure
@@ -2758,6 +3231,10 @@ 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);
 
+	if (qla4xxx_setup_boot_info(ha))
+		ql4_printk(KERN_ERR, ha, "%s:ISCSI boot info setup failed\n",
+			   __func__);
+
 	qla4xxx_create_ifaces(ha);
 	return 0;
 
@@ -2831,6 +3308,9 @@ static void __devexit qla4xxx_remove_adapter(struct pci_dev *pdev)
 	/* destroy iface from sysfs */
 	qla4xxx_destroy_ifaces(ha);
 
+	if (ha->boot_kset)
+		iscsi_boot_destroy_kset(ha->boot_kset);
+
 	scsi_remove_host(ha->host);
 
 	qla4xxx_free_adapter(ha);