[SCSI] qla2xxx: Add FDMI support.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 564 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c
index 31ce4f62da1..e7b138c2e33 100644
--- a/drivers/scsi/qla2xxx/qla_gs.c
+++ b/drivers/scsi/qla2xxx/qla_gs.c
@@ -1099,3 +1099,567 @@ qla2x00_sns_rnn_id(scsi_qla_host_t *ha)
 
 	return (rval);
 }
+
+/**
+ * qla2x00_mgmt_svr_login() - Login to fabric Managment Service.
+ * @ha: HA context
+ *
+ * Returns 0 on success.
+ */
+static int
+qla2x00_mgmt_svr_login(scsi_qla_host_t *ha)
+{
+	int ret;
+	uint16_t mb[MAILBOX_REGISTER_COUNT];
+
+	ret = QLA_SUCCESS;
+	if (ha->flags.management_server_logged_in)
+		return ret;
+
+	ha->isp_ops.fabric_login(ha, ha->mgmt_svr_loop_id, 0xff, 0xff, 0xfa,
+	    mb, BIT_1);
+	if (mb[0] != MBS_COMMAND_COMPLETE) {
+		DEBUG2_13(printk("%s(%ld): Failed MANAGEMENT_SERVER login: "
+		    "loop_id=%x mb[0]=%x mb[1]=%x mb[2]=%x mb[6]=%x mb[7]=%x\n",
+		    __func__, ha->host_no, ha->mgmt_svr_loop_id, mb[0], mb[1],
+		    mb[2], mb[6], mb[7]));
+		ret = QLA_FUNCTION_FAILED;
+	} else
+		ha->flags.management_server_logged_in = 1;
+
+	return ret;
+}
+
+/**
+ * qla2x00_prep_ms_fdmi_iocb() - Prepare common MS IOCB fields for FDMI query.
+ * @ha: HA context
+ * @req_size: request size in bytes
+ * @rsp_size: response size in bytes
+ *
+ * Returns a pointer to the @ha's ms_iocb.
+ */
+void *
+qla2x00_prep_ms_fdmi_iocb(scsi_qla_host_t *ha, uint32_t req_size,
+    uint32_t rsp_size)
+{
+	ms_iocb_entry_t *ms_pkt;
+
+	ms_pkt = ha->ms_iocb;
+	memset(ms_pkt, 0, sizeof(ms_iocb_entry_t));
+
+	ms_pkt->entry_type = MS_IOCB_TYPE;
+	ms_pkt->entry_count = 1;
+	SET_TARGET_ID(ha, ms_pkt->loop_id, ha->mgmt_svr_loop_id);
+	ms_pkt->control_flags = __constant_cpu_to_le16(CF_READ | CF_HEAD_TAG);
+	ms_pkt->timeout = __constant_cpu_to_le16(59);
+	ms_pkt->cmd_dsd_count = __constant_cpu_to_le16(1);
+	ms_pkt->total_dsd_count = __constant_cpu_to_le16(2);
+	ms_pkt->rsp_bytecount = cpu_to_le32(rsp_size);
+	ms_pkt->req_bytecount = cpu_to_le32(req_size);
+
+	ms_pkt->dseg_req_address[0] = cpu_to_le32(LSD(ha->ct_sns_dma));
+	ms_pkt->dseg_req_address[1] = cpu_to_le32(MSD(ha->ct_sns_dma));
+	ms_pkt->dseg_req_length = ms_pkt->req_bytecount;
+
+	ms_pkt->dseg_rsp_address[0] = cpu_to_le32(LSD(ha->ct_sns_dma));
+	ms_pkt->dseg_rsp_address[1] = cpu_to_le32(MSD(ha->ct_sns_dma));
+	ms_pkt->dseg_rsp_length = ms_pkt->rsp_bytecount;
+
+	return ms_pkt;
+}
+
+/**
+ * qla24xx_prep_ms_fdmi_iocb() - Prepare common MS IOCB fields for FDMI query.
+ * @ha: HA context
+ * @req_size: request size in bytes
+ * @rsp_size: response size in bytes
+ *
+ * Returns a pointer to the @ha's ms_iocb.
+ */
+void *
+qla24xx_prep_ms_fdmi_iocb(scsi_qla_host_t *ha, uint32_t req_size,
+    uint32_t rsp_size)
+{
+	struct ct_entry_24xx *ct_pkt;
+
+	ct_pkt = (struct ct_entry_24xx *)ha->ms_iocb;
+	memset(ct_pkt, 0, sizeof(struct ct_entry_24xx));
+
+	ct_pkt->entry_type = CT_IOCB_TYPE;
+	ct_pkt->entry_count = 1;
+	ct_pkt->nport_handle = cpu_to_le16(ha->mgmt_svr_loop_id);
+	ct_pkt->timeout = __constant_cpu_to_le16(59);
+	ct_pkt->cmd_dsd_count = __constant_cpu_to_le16(1);
+	ct_pkt->rsp_dsd_count = __constant_cpu_to_le16(1);
+	ct_pkt->rsp_byte_count = cpu_to_le32(rsp_size);
+	ct_pkt->cmd_byte_count = cpu_to_le32(req_size);
+
+	ct_pkt->dseg_0_address[0] = cpu_to_le32(LSD(ha->ct_sns_dma));
+	ct_pkt->dseg_0_address[1] = cpu_to_le32(MSD(ha->ct_sns_dma));
+	ct_pkt->dseg_0_len = ct_pkt->cmd_byte_count;
+
+	ct_pkt->dseg_1_address[0] = cpu_to_le32(LSD(ha->ct_sns_dma));
+	ct_pkt->dseg_1_address[1] = cpu_to_le32(MSD(ha->ct_sns_dma));
+	ct_pkt->dseg_1_len = ct_pkt->rsp_byte_count;
+
+	return ct_pkt;
+}
+
+static inline ms_iocb_entry_t *
+qla2x00_update_ms_fdmi_iocb(scsi_qla_host_t *ha, uint32_t req_size)
+{
+	ms_iocb_entry_t *ms_pkt = ha->ms_iocb;
+	struct ct_entry_24xx *ct_pkt = (struct ct_entry_24xx *)ha->ms_iocb;
+
+	if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
+		ct_pkt->cmd_byte_count = cpu_to_le32(req_size);
+		ct_pkt->dseg_0_len = ct_pkt->cmd_byte_count;
+	} else {
+		ms_pkt->req_bytecount = cpu_to_le32(req_size);
+		ms_pkt->dseg_req_length = ms_pkt->req_bytecount;
+	}
+
+	return ms_pkt;
+}
+
+/**
+ * qla2x00_prep_ct_req() - Prepare common CT request fields for SNS query.
+ * @ct_req: CT request buffer
+ * @cmd: GS command
+ * @rsp_size: response size in bytes
+ *
+ * Returns a pointer to the intitialized @ct_req.
+ */
+static inline struct ct_sns_req *
+qla2x00_prep_ct_fdmi_req(struct ct_sns_req *ct_req, uint16_t cmd,
+    uint16_t rsp_size)
+{
+	memset(ct_req, 0, sizeof(struct ct_sns_pkt));
+
+	ct_req->header.revision = 0x01;
+	ct_req->header.gs_type = 0xFA;
+	ct_req->header.gs_subtype = 0x10;
+	ct_req->command = cpu_to_be16(cmd);
+	ct_req->max_rsp_size = cpu_to_be16((rsp_size - 16) / 4);
+
+	return ct_req;
+}
+
+/**
+ * qla2x00_fdmi_rhba() -
+ * @ha: HA context
+ *
+ * Returns 0 on success.
+ */
+static int
+qla2x00_fdmi_rhba(scsi_qla_host_t *ha)
+{
+	int rval, alen;
+	uint32_t size, sn;
+
+	ms_iocb_entry_t *ms_pkt;
+	struct ct_sns_req *ct_req;
+	struct ct_sns_rsp *ct_rsp;
+	uint8_t *entries;
+	struct ct_fdmi_hba_attr *eiter;
+
+	/* Issue RHBA */
+	/* Prepare common MS IOCB */
+	/*   Request size adjusted after CT preparation */
+	ms_pkt = ha->isp_ops.prep_ms_fdmi_iocb(ha, 0, RHBA_RSP_SIZE);
+
+	/* Prepare CT request */
+	ct_req = qla2x00_prep_ct_fdmi_req(&ha->ct_sns->p.req, RHBA_CMD,
+	    RHBA_RSP_SIZE);
+	ct_rsp = &ha->ct_sns->p.rsp;
+
+	/* Prepare FDMI command arguments -- attribute block, attributes. */
+	memcpy(ct_req->req.rhba.hba_identifier, ha->port_name, WWN_SIZE);
+	ct_req->req.rhba.entry_count = __constant_cpu_to_be32(1);
+	memcpy(ct_req->req.rhba.port_name, ha->port_name, WWN_SIZE);
+	size = 2 * WWN_SIZE + 4 + 4;
+
+	/* Attributes */
+	ct_req->req.rhba.attrs.count =
+	    __constant_cpu_to_be32(FDMI_HBA_ATTR_COUNT);
+	entries = ct_req->req.rhba.hba_identifier;
+
+	/* Nodename. */
+	eiter = (struct ct_fdmi_hba_attr *) (entries + size);
+	eiter->type = __constant_cpu_to_be16(FDMI_HBA_NODE_NAME);
+	eiter->len = __constant_cpu_to_be16(4 + WWN_SIZE);
+	memcpy(eiter->a.node_name, ha->node_name, WWN_SIZE);
+	size += 4 + WWN_SIZE;
+
+	DEBUG13(printk("%s(%ld): NODENAME=%02x%02x%02x%02x%02x%02x%02x%02x.\n",
+	    __func__, ha->host_no,
+	    eiter->a.node_name[0], eiter->a.node_name[1], eiter->a.node_name[2],
+	    eiter->a.node_name[3], eiter->a.node_name[4], eiter->a.node_name[5],
+	    eiter->a.node_name[6], eiter->a.node_name[7]));
+
+	/* Manufacturer. */
+	eiter = (struct ct_fdmi_hba_attr *) (entries + size);
+	eiter->type = __constant_cpu_to_be16(FDMI_HBA_MANUFACTURER);
+	strcpy(eiter->a.manufacturer, "QLogic Corporation");
+	alen = strlen(eiter->a.manufacturer);
+	alen += (alen & 3) ? (4 - (alen & 3)) : 4;
+	eiter->len = cpu_to_be16(4 + alen);
+	size += 4 + alen;
+
+	DEBUG13(printk("%s(%ld): MANUFACTURER=%s.\n", __func__, ha->host_no,
+	    eiter->a.manufacturer));
+
+	/* Serial number. */
+	eiter = (struct ct_fdmi_hba_attr *) (entries + size);
+	eiter->type = __constant_cpu_to_be16(FDMI_HBA_SERIAL_NUMBER);
+	sn = ((ha->serial0 & 0x1f) << 16) | (ha->serial2 << 8) | ha->serial1;
+	sprintf(eiter->a.serial_num, "%c%05d", 'A' + sn / 100000, sn % 100000);
+	alen = strlen(eiter->a.serial_num);
+	alen += (alen & 3) ? (4 - (alen & 3)) : 4;
+	eiter->len = cpu_to_be16(4 + alen);
+	size += 4 + alen;
+
+	DEBUG13(printk("%s(%ld): SERIALNO=%s.\n", __func__, ha->host_no,
+	    eiter->a.serial_num));
+
+	/* Model name. */
+	eiter = (struct ct_fdmi_hba_attr *) (entries + size);
+	eiter->type = __constant_cpu_to_be16(FDMI_HBA_MODEL);
+	strcpy(eiter->a.model, ha->model_number);
+	alen = strlen(eiter->a.model);
+	alen += (alen & 3) ? (4 - (alen & 3)) : 4;
+	eiter->len = cpu_to_be16(4 + alen);
+	size += 4 + alen;
+
+	DEBUG13(printk("%s(%ld): MODEL_NAME=%s.\n", __func__, ha->host_no,
+	    eiter->a.model));
+
+	/* Model description. */
+	eiter = (struct ct_fdmi_hba_attr *) (entries + size);
+	eiter->type = __constant_cpu_to_be16(FDMI_HBA_MODEL_DESCRIPTION);
+	if (ha->model_desc)
+		strncpy(eiter->a.model_desc, ha->model_desc, 80);
+	alen = strlen(eiter->a.model_desc);
+	alen += (alen & 3) ? (4 - (alen & 3)) : 4;
+	eiter->len = cpu_to_be16(4 + alen);
+	size += 4 + alen;
+
+	DEBUG13(printk("%s(%ld): MODEL_DESC=%s.\n", __func__, ha->host_no,
+	    eiter->a.model_desc));
+
+	/* Hardware version. */
+	eiter = (struct ct_fdmi_hba_attr *) (entries + size);
+	eiter->type = __constant_cpu_to_be16(FDMI_HBA_HARDWARE_VERSION);
+	strcpy(eiter->a.hw_version, ha->adapter_id);
+	alen = strlen(eiter->a.hw_version);
+	alen += (alen & 3) ? (4 - (alen & 3)) : 4;
+	eiter->len = cpu_to_be16(4 + alen);
+	size += 4 + alen;
+
+	DEBUG13(printk("%s(%ld): HARDWAREVER=%s.\n", __func__, ha->host_no,
+	    eiter->a.hw_version));
+
+	/* Driver version. */
+	eiter = (struct ct_fdmi_hba_attr *) (entries + size);
+	eiter->type = __constant_cpu_to_be16(FDMI_HBA_DRIVER_VERSION);
+	strcpy(eiter->a.driver_version, qla2x00_version_str);
+	alen = strlen(eiter->a.driver_version);
+	alen += (alen & 3) ? (4 - (alen & 3)) : 4;
+	eiter->len = cpu_to_be16(4 + alen);
+	size += 4 + alen;
+
+	DEBUG13(printk("%s(%ld): DRIVERVER=%s.\n", __func__, ha->host_no,
+	    eiter->a.driver_version));
+
+	/* Option ROM version. */
+	eiter = (struct ct_fdmi_hba_attr *) (entries + size);
+	eiter->type = __constant_cpu_to_be16(FDMI_HBA_OPTION_ROM_VERSION);
+	strcpy(eiter->a.orom_version, "0.00");
+	alen = strlen(eiter->a.orom_version);
+	alen += (alen & 3) ? (4 - (alen & 3)) : 4;
+	eiter->len = cpu_to_be16(4 + alen);
+	size += 4 + alen;
+
+	DEBUG13(printk("%s(%ld): OPTROMVER=%s.\n", __func__, ha->host_no,
+	    eiter->a.orom_version));
+
+	/* Firmware version */
+	eiter = (struct ct_fdmi_hba_attr *) (entries + size);
+	eiter->type = __constant_cpu_to_be16(FDMI_HBA_FIRMWARE_VERSION);
+	ha->isp_ops.fw_version_str(ha, eiter->a.fw_version);
+	alen = strlen(eiter->a.fw_version);
+	alen += (alen & 3) ? (4 - (alen & 3)) : 4;
+	eiter->len = cpu_to_be16(4 + alen);
+	size += 4 + alen;
+
+	DEBUG13(printk("%s(%ld): FIRMWAREVER=%s.\n", __func__, ha->host_no,
+	    eiter->a.fw_version));
+
+	/* Update MS request size. */
+	qla2x00_update_ms_fdmi_iocb(ha, size + 16);
+
+	DEBUG13(printk("%s(%ld): RHBA identifier="
+	    "%02x%02x%02x%02x%02x%02x%02x%02x size=%d.\n", __func__,
+	    ha->host_no, ct_req->req.rhba.hba_identifier[0],
+	    ct_req->req.rhba.hba_identifier[1],
+	    ct_req->req.rhba.hba_identifier[2],
+	    ct_req->req.rhba.hba_identifier[3],
+	    ct_req->req.rhba.hba_identifier[4],
+	    ct_req->req.rhba.hba_identifier[5],
+	    ct_req->req.rhba.hba_identifier[6],
+	    ct_req->req.rhba.hba_identifier[7], size));
+	DEBUG13(qla2x00_dump_buffer(entries, size));
+
+	/* Execute MS IOCB */
+	rval = qla2x00_issue_iocb(ha, ha->ms_iocb, ha->ms_iocb_dma,
+	    sizeof(ms_iocb_entry_t));
+	if (rval != QLA_SUCCESS) {
+		/*EMPTY*/
+		DEBUG2_3(printk("scsi(%ld): RHBA issue IOCB failed (%d).\n",
+		    ha->host_no, rval));
+	} else if (qla2x00_chk_ms_status(ha, ms_pkt, ct_rsp, "RHBA") !=
+	    QLA_SUCCESS) {
+		rval = QLA_FUNCTION_FAILED;
+		if (ct_rsp->header.reason_code == CT_REASON_CANNOT_PERFORM &&
+		    ct_rsp->header.explanation_code ==
+		    CT_EXPL_ALREADY_REGISTERED) {
+			DEBUG2_13(printk("%s(%ld): HBA already registered.\n",
+			    __func__, ha->host_no));
+			rval = QLA_ALREADY_REGISTERED;
+		}
+	} else {
+		DEBUG2(printk("scsi(%ld): RHBA exiting normally.\n",
+		    ha->host_no));
+	}
+
+	return rval;
+}
+
+/**
+ * qla2x00_fdmi_dhba() -
+ * @ha: HA context
+ *
+ * Returns 0 on success.
+ */
+static int
+qla2x00_fdmi_dhba(scsi_qla_host_t *ha)
+{
+	int rval;
+
+	ms_iocb_entry_t *ms_pkt;
+	struct ct_sns_req *ct_req;
+	struct ct_sns_rsp *ct_rsp;
+
+	/* Issue RPA */
+	/* Prepare common MS IOCB */
+	ms_pkt = ha->isp_ops.prep_ms_fdmi_iocb(ha, DHBA_REQ_SIZE,
+	    DHBA_RSP_SIZE);
+
+	/* Prepare CT request */
+	ct_req = qla2x00_prep_ct_fdmi_req(&ha->ct_sns->p.req, DHBA_CMD,
+	    DHBA_RSP_SIZE);
+	ct_rsp = &ha->ct_sns->p.rsp;
+
+	/* Prepare FDMI command arguments -- portname. */
+	memcpy(ct_req->req.dhba.port_name, ha->port_name, WWN_SIZE);
+
+	DEBUG13(printk("%s(%ld): DHBA portname="
+	    "%02x%02x%02x%02x%02x%02x%02x%02x.\n", __func__, ha->host_no,
+	    ct_req->req.dhba.port_name[0], ct_req->req.dhba.port_name[1],
+	    ct_req->req.dhba.port_name[2], ct_req->req.dhba.port_name[3],
+	    ct_req->req.dhba.port_name[4], ct_req->req.dhba.port_name[5],
+	    ct_req->req.dhba.port_name[6], ct_req->req.dhba.port_name[7]));
+
+	/* Execute MS IOCB */
+	rval = qla2x00_issue_iocb(ha, ha->ms_iocb, ha->ms_iocb_dma,
+	    sizeof(ms_iocb_entry_t));
+	if (rval != QLA_SUCCESS) {
+		/*EMPTY*/
+		DEBUG2_3(printk("scsi(%ld): DHBA issue IOCB failed (%d).\n",
+		    ha->host_no, rval));
+	} else if (qla2x00_chk_ms_status(ha, ms_pkt, ct_rsp, "DHBA") !=
+	    QLA_SUCCESS) {
+		rval = QLA_FUNCTION_FAILED;
+	} else {
+		DEBUG2(printk("scsi(%ld): DHBA exiting normally.\n",
+		    ha->host_no));
+	}
+
+	return rval;
+}
+
+/**
+ * qla2x00_fdmi_rpa() -
+ * @ha: HA context
+ *
+ * Returns 0 on success.
+ */
+static int
+qla2x00_fdmi_rpa(scsi_qla_host_t *ha)
+{
+	int rval, alen;
+	uint32_t size, max_frame_size;
+
+	ms_iocb_entry_t *ms_pkt;
+	struct ct_sns_req *ct_req;
+	struct ct_sns_rsp *ct_rsp;
+	uint8_t *entries;
+	struct ct_fdmi_port_attr *eiter;
+	struct init_cb_24xx *icb24 = (struct init_cb_24xx *)ha->init_cb;
+
+	/* Issue RPA */
+	/* Prepare common MS IOCB */
+	/*   Request size adjusted after CT preparation */
+	ms_pkt = ha->isp_ops.prep_ms_fdmi_iocb(ha, 0, RPA_RSP_SIZE);
+
+	/* Prepare CT request */
+	ct_req = qla2x00_prep_ct_fdmi_req(&ha->ct_sns->p.req, RPA_CMD,
+	    RPA_RSP_SIZE);
+	ct_rsp = &ha->ct_sns->p.rsp;
+
+	/* Prepare FDMI command arguments -- attribute block, attributes. */
+	memcpy(ct_req->req.rpa.port_name, ha->port_name, WWN_SIZE);
+	size = WWN_SIZE + 4;
+
+	/* Attributes */
+	ct_req->req.rpa.attrs.count =
+	    __constant_cpu_to_be32(FDMI_PORT_ATTR_COUNT);
+	entries = ct_req->req.rpa.port_name;
+
+	/* FC4 types. */
+	eiter = (struct ct_fdmi_port_attr *) (entries + size);
+	eiter->type = __constant_cpu_to_be16(FDMI_PORT_FC4_TYPES);
+	eiter->len = __constant_cpu_to_be16(4 + 32);
+	eiter->a.fc4_types[2] = 0x01;
+	size += 4 + 32;
+
+	DEBUG13(printk("%s(%ld): FC4_TYPES=%02x %02x.\n", __func__, ha->host_no,
+	    eiter->a.fc4_types[2], eiter->a.fc4_types[1]));
+
+	/* Supported speed. */
+	eiter = (struct ct_fdmi_port_attr *) (entries + size);
+	eiter->type = __constant_cpu_to_be16(FDMI_PORT_SUPPORT_SPEED);
+	eiter->len = __constant_cpu_to_be16(4 + 4);
+	if (IS_QLA25XX(ha))
+		eiter->a.sup_speed = __constant_cpu_to_be32(4);
+	else if (IS_QLA24XX(ha))
+		eiter->a.sup_speed = __constant_cpu_to_be32(8);
+	else if (IS_QLA23XX(ha))
+		eiter->a.sup_speed = __constant_cpu_to_be32(2);
+	else
+		eiter->a.sup_speed = __constant_cpu_to_be32(1);
+	size += 4 + 4;
+
+	DEBUG13(printk("%s(%ld): SUPPORTED_SPEED=%x.\n", __func__, ha->host_no,
+	    eiter->a.sup_speed));
+
+	/* Current speed. */
+	eiter = (struct ct_fdmi_port_attr *) (entries + size);
+	eiter->type = __constant_cpu_to_be16(FDMI_PORT_CURRENT_SPEED);
+	eiter->len = __constant_cpu_to_be16(4 + 4);
+	switch (ha->link_data_rate) {
+	case 0:
+		eiter->a.cur_speed = __constant_cpu_to_be32(1);
+		break;
+	case 1:
+		eiter->a.cur_speed = __constant_cpu_to_be32(2);
+		break;
+	case 3:
+		eiter->a.cur_speed = __constant_cpu_to_be32(8);
+		break;
+	case 4:
+		eiter->a.cur_speed = __constant_cpu_to_be32(4);
+		break;
+	}
+	size += 4 + 4;
+
+	DEBUG13(printk("%s(%ld): CURRENT_SPEED=%x.\n", __func__, ha->host_no,
+	    eiter->a.cur_speed));
+
+	/* Max frame size. */
+	eiter = (struct ct_fdmi_port_attr *) (entries + size);
+	eiter->type = __constant_cpu_to_be16(FDMI_PORT_MAX_FRAME_SIZE);
+	eiter->len = __constant_cpu_to_be16(4 + 4);
+	max_frame_size = IS_QLA24XX(ha) || IS_QLA25XX(ha) ?
+		(uint32_t) icb24->frame_payload_size:
+		(uint32_t) ha->init_cb->frame_payload_size;
+	eiter->a.max_frame_size = cpu_to_be32(max_frame_size);
+	size += 4 + 4;
+
+	DEBUG13(printk("%s(%ld): MAX_FRAME_SIZE=%x.\n", __func__, ha->host_no,
+	    eiter->a.max_frame_size));
+
+	/* OS device name. */
+	eiter = (struct ct_fdmi_port_attr *) (entries + size);
+	eiter->type = __constant_cpu_to_be16(FDMI_PORT_OS_DEVICE_NAME);
+	sprintf(eiter->a.os_dev_name, "/proc/scsi/qla2xxx/%ld", ha->host_no);
+	alen = strlen(eiter->a.os_dev_name);
+	alen += (alen & 3) ? (4 - (alen & 3)) : 4;
+	eiter->len = cpu_to_be16(4 + alen);
+	size += 4 + alen;
+
+	DEBUG13(printk("%s(%ld): OS_DEVICE_NAME=%s.\n", __func__, ha->host_no,
+	    eiter->a.os_dev_name));
+
+	/* Update MS request size. */
+	qla2x00_update_ms_fdmi_iocb(ha, size + 16);
+
+	DEBUG13(printk("%s(%ld): RPA portname="
+	    "%02x%02x%02x%02x%02x%02x%02x%02x size=%d.\n", __func__,
+	    ha->host_no, ct_req->req.rpa.port_name[0],
+	    ct_req->req.rpa.port_name[1], ct_req->req.rpa.port_name[2],
+	    ct_req->req.rpa.port_name[3], ct_req->req.rpa.port_name[4],
+	    ct_req->req.rpa.port_name[5], ct_req->req.rpa.port_name[6],
+	    ct_req->req.rpa.port_name[7], size));
+	DEBUG13(qla2x00_dump_buffer(entries, size));
+
+	/* Execute MS IOCB */
+	rval = qla2x00_issue_iocb(ha, ha->ms_iocb, ha->ms_iocb_dma,
+	    sizeof(ms_iocb_entry_t));
+	if (rval != QLA_SUCCESS) {
+		/*EMPTY*/
+		DEBUG2_3(printk("scsi(%ld): RPA issue IOCB failed (%d).\n",
+		    ha->host_no, rval));
+	} else if (qla2x00_chk_ms_status(ha, ms_pkt, ct_rsp, "RPA") !=
+	    QLA_SUCCESS) {
+		rval = QLA_FUNCTION_FAILED;
+	} else {
+		DEBUG2(printk("scsi(%ld): RPA exiting normally.\n",
+		    ha->host_no));
+	}
+
+	return rval;
+}
+
+/**
+ * qla2x00_fdmi_register() -
+ * @ha: HA context
+ *
+ * Returns 0 on success.
+ */
+int
+qla2x00_fdmi_register(scsi_qla_host_t *ha)
+{
+	int rval;
+
+	rval = qla2x00_mgmt_svr_login(ha);
+	if (rval)
+		return rval;
+
+	rval = qla2x00_fdmi_rhba(ha);
+	if (rval) {
+		if (rval != QLA_ALREADY_REGISTERED)
+			return rval;
+
+		rval = qla2x00_fdmi_dhba(ha);
+		if (rval)
+			return rval;
+
+		rval = qla2x00_fdmi_rhba(ha);
+		if (rval)
+			return rval;
+	}
+	rval = qla2x00_fdmi_rpa(ha);
+
+	return rval;
+}