scsi: qedi: Add support for Boot from SAN over iSCSI offload (c57ec8fb) · Commits · 戴 / test

drivers/scsi/qedi/qedi.h

+17 −0

Original line number	Diff line number	Diff line
		@@ -23,11 +23,17 @@
		#include <linux/qed/qed_iscsi_if.h>
		#include <linux/qed/qed_ll2_if.h>
		#include "qedi_version.h"
		#include "qedi_nvm_iscsi_cfg.h"

		#define QEDI_MODULE_NAME "qedi"

		struct qedi_endpoint;

		#ifndef GET_FIELD2
		#define GET_FIELD2(value, name) \
		(((value) & (name ## _MASK)) >> (name ## _OFFSET))
		#endif

		/*
		* PCI function probe defines
		*/
		@@ -66,6 +72,11 @@ struct qedi_endpoint;
		#define QEDI_HW_DMA_BOUNDARY 0xfff
		#define QEDI_PATH_HANDLE 0xFE0000000UL

		enum qedi_nvm_tgts {
		QEDI_NVM_TGT_PRI,
		QEDI_NVM_TGT_SEC,
		};

		struct qedi_uio_ctrl {
		/* meta data */
		u32 uio_hsi_version;
		@@ -283,6 +294,8 @@ struct qedi_ctx {
		void *bdq_pbl_list;
		dma_addr_t bdq_pbl_list_dma;
		u8 bdq_pbl_list_num_entries;
		struct nvm_iscsi_cfg *iscsi_cfg;
		dma_addr_t nvm_buf_dma;
		void __iomem *bdq_primary_prod;
		void __iomem *bdq_secondary_prod;
		u16 bdq_prod_idx;
		@@ -337,6 +350,10 @@ struct qedi_ctx {
		bool use_fast_sge;

		atomic_t num_offloads;
		#define SYSFS_FLAG_FW_SEL_BOOT 2
		#define IPV6_LEN 41
		#define IPV4_LEN 17
		struct iscsi_boot_kset *boot_kset;
		};

		struct qedi_work {

drivers/scsi/qedi/qedi_main.c

+419 −0

Original line number	Diff line number	Diff line
		@@ -19,6 +19,7 @@
		#include <linux/mm.h>
		#include <linux/if_vlan.h>
		#include <linux/cpu.h>
		#include <linux/iscsi_boot_sysfs.h>

		#include <scsi/scsi_cmnd.h>
		#include <scsi/scsi_device.h>
		@@ -1143,6 +1144,30 @@ exit_setup_int:
		return rc;
		}

		static void qedi_free_nvm_iscsi_cfg(struct qedi_ctx *qedi)
		{
		if (qedi->iscsi_cfg)
		dma_free_coherent(&qedi->pdev->dev,
		sizeof(struct nvm_iscsi_cfg),
		qedi->iscsi_cfg, qedi->nvm_buf_dma);
		}

		static int qedi_alloc_nvm_iscsi_cfg(struct qedi_ctx *qedi)
		{
		qedi->iscsi_cfg = dma_zalloc_coherent(&qedi->pdev->dev,
		sizeof(struct nvm_iscsi_cfg),
		&qedi->nvm_buf_dma, GFP_KERNEL);
		if (!qedi->iscsi_cfg) {
		QEDI_ERR(&qedi->dbg_ctx, "Could not allocate NVM BUF.\n");
		return -ENOMEM;
		}
		QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
		"NVM BUF addr=0x%p dma=0x%llx.\n", qedi->iscsi_cfg,
		qedi->nvm_buf_dma);

		return 0;
		}

		static void qedi_free_bdq(struct qedi_ctx *qedi)
		{
		int i;
		@@ -1183,6 +1208,7 @@ static void qedi_free_global_queues(struct qedi_ctx *qedi)
		kfree(gl[i]);
		}
		qedi_free_bdq(qedi);
		qedi_free_nvm_iscsi_cfg(qedi);
		}

		static int qedi_alloc_bdq(struct qedi_ctx *qedi)
		@@ -1309,6 +1335,11 @@ static int qedi_alloc_global_queues(struct qedi_ctx *qedi)
		if (rc)
		goto mem_alloc_failure;

		/* Allocate DMA coherent buffers for NVM_ISCSI_CFG */
		rc = qedi_alloc_nvm_iscsi_cfg(qedi);
		if (rc)
		goto mem_alloc_failure;

		/* Allocate a CQ and an associated PBL for each MSI-X
		* vector.
		*/
		@@ -1671,6 +1702,387 @@ void qedi_reset_host_mtu(struct qedi_ctx *qedi, u16 mtu)
		qedi_ops->ll2->start(qedi->cdev, &params);
		}

		/**
		* qedi_get_nvram_block: - Scan through the iSCSI NVRAM block (while accounting
		* for gaps) for the matching absolute-pf-id of the QEDI device.
		*/
		static struct nvm_iscsi_block *
		qedi_get_nvram_block(struct qedi_ctx *qedi)
		{
		int i;
		u8 pf;
		u32 flags;
		struct nvm_iscsi_block *block;

		pf = qedi->dev_info.common.abs_pf_id;
		block = &qedi->iscsi_cfg->block[0];
		for (i = 0; i < NUM_OF_ISCSI_PF_SUPPORTED; i++, block++) {
		flags = ((block->id) & NVM_ISCSI_CFG_BLK_CTRL_FLAG_MASK) >>
		NVM_ISCSI_CFG_BLK_CTRL_FLAG_OFFSET;
		if (flags & (NVM_ISCSI_CFG_BLK_CTRL_FLAG_IS_NOT_EMPTY \|
		NVM_ISCSI_CFG_BLK_CTRL_FLAG_PF_MAPPED) &&
		(pf == (block->id & NVM_ISCSI_CFG_BLK_MAPPED_PF_ID_MASK)
		>> NVM_ISCSI_CFG_BLK_MAPPED_PF_ID_OFFSET))
		return block;
		}
		return NULL;
		}

		static ssize_t qedi_show_boot_eth_info(void data, int type, char buf)
		{
		struct qedi_ctx *qedi = data;
		struct nvm_iscsi_initiator *initiator;
		char *str = buf;
		int rc = 1;
		u32 ipv6_en, dhcp_en, ip_len;
		struct nvm_iscsi_block *block;
		char fmt, ip, sub, gw;

		block = qedi_get_nvram_block(qedi);
		if (!block)
		return 0;

		initiator = &block->initiator;
		ipv6_en = block->generic.ctrl_flags &
		NVM_ISCSI_CFG_GEN_IPV6_ENABLED;
		dhcp_en = block->generic.ctrl_flags &
		NVM_ISCSI_CFG_GEN_DHCP_TCPIP_CONFIG_ENABLED;
		/* Static IP assignments. */
		fmt = ipv6_en ? "%pI6\n" : "%pI4\n";
		ip = ipv6_en ? initiator->ipv6.addr.byte : initiator->ipv4.addr.byte;
		ip_len = ipv6_en ? IPV6_LEN : IPV4_LEN;
		sub = ipv6_en ? initiator->ipv6.subnet_mask.byte :
		initiator->ipv4.subnet_mask.byte;
		gw = ipv6_en ? initiator->ipv6.gateway.byte :
		initiator->ipv4.gateway.byte;
		/* DHCP IP adjustments. */
		fmt = dhcp_en ? "%s\n" : fmt;
		if (dhcp_en) {
		ip = ipv6_en ? "0::0" : "0.0.0.0";
		sub = ip;
		gw = ip;
		ip_len = ipv6_en ? 5 : 8;
		}

		switch (type) {
		case ISCSI_BOOT_ETH_IP_ADDR:
		rc = snprintf(str, ip_len, fmt, ip);
		break;
		case ISCSI_BOOT_ETH_SUBNET_MASK:
		rc = snprintf(str, ip_len, fmt, sub);
		break;
		case ISCSI_BOOT_ETH_GATEWAY:
		rc = snprintf(str, ip_len, fmt, gw);
		break;
		case ISCSI_BOOT_ETH_FLAGS:
		rc = snprintf(str, 3, "%hhd\n",
		SYSFS_FLAG_FW_SEL_BOOT);
		break;
		case ISCSI_BOOT_ETH_INDEX:
		rc = snprintf(str, 3, "0\n");
		break;
		case ISCSI_BOOT_ETH_MAC:
		rc = sysfs_format_mac(str, qedi->mac, ETH_ALEN);
		break;
		case ISCSI_BOOT_ETH_VLAN:
		rc = snprintf(str, 12, "%d\n",
		GET_FIELD2(initiator->generic_cont0,
		NVM_ISCSI_CFG_INITIATOR_VLAN));
		break;
		case ISCSI_BOOT_ETH_ORIGIN:
		if (dhcp_en)
		rc = snprintf(str, 3, "3\n");
		break;
		default:
		rc = 0;
		break;
		}

		return rc;
		}

		static umode_t qedi_eth_get_attr_visibility(void *data, int type)
		{
		int rc = 1;

		switch (type) {
		case ISCSI_BOOT_ETH_FLAGS:
		case ISCSI_BOOT_ETH_MAC:
		case ISCSI_BOOT_ETH_INDEX:
		case ISCSI_BOOT_ETH_IP_ADDR:
		case ISCSI_BOOT_ETH_SUBNET_MASK:
		case ISCSI_BOOT_ETH_GATEWAY:
		case ISCSI_BOOT_ETH_ORIGIN:
		case ISCSI_BOOT_ETH_VLAN:
		rc = 0444;
		break;
		default:
		rc = 0;
		break;
		}
		return rc;
		}

		static ssize_t qedi_show_boot_ini_info(void data, int type, char buf)
		{
		struct qedi_ctx *qedi = data;
		struct nvm_iscsi_initiator *initiator;
		char *str = buf;
		int rc;
		struct nvm_iscsi_block *block;

		block = qedi_get_nvram_block(qedi);
		if (!block)
		return 0;

		initiator = &block->initiator;

		switch (type) {
		case ISCSI_BOOT_INI_INITIATOR_NAME:
		rc = snprintf(str, NVM_ISCSI_CFG_ISCSI_NAME_MAX_LEN, "%s\n",
		initiator->initiator_name.byte);
		break;
		default:
		rc = 0;
		break;
		}
		return rc;
		}

		static umode_t qedi_ini_get_attr_visibility(void *data, int type)
		{
		int rc;

		switch (type) {
		case ISCSI_BOOT_INI_INITIATOR_NAME:
		rc = 0444;
		break;
		default:
		rc = 0;
		break;
		}
		return rc;
		}

		static ssize_t
		qedi_show_boot_tgt_info(struct qedi_ctx *qedi, int type,
		char *buf, enum qedi_nvm_tgts idx)
		{
		char *str = buf;
		int rc = 1;
		u32 ctrl_flags, ipv6_en, chap_en, mchap_en, ip_len;
		struct nvm_iscsi_block *block;
		char chap_name, chap_secret;
		char mchap_name, mchap_secret;

		block = qedi_get_nvram_block(qedi);
		if (!block)
		goto exit_show_tgt_info;

		QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_EVT,
		"Port:%d, tgt_idx:%d\n",
		GET_FIELD2(block->id, NVM_ISCSI_CFG_BLK_MAPPED_PF_ID), idx);

		ctrl_flags = block->target[idx].ctrl_flags &
		NVM_ISCSI_CFG_TARGET_ENABLED;

		if (!ctrl_flags) {
		QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_EVT,
		"Target disabled\n");
		goto exit_show_tgt_info;
		}

		ipv6_en = block->generic.ctrl_flags &
		NVM_ISCSI_CFG_GEN_IPV6_ENABLED;
		ip_len = ipv6_en ? IPV6_LEN : IPV4_LEN;
		chap_en = block->generic.ctrl_flags &
		NVM_ISCSI_CFG_GEN_CHAP_ENABLED;
		chap_name = chap_en ? block->initiator.chap_name.byte : NULL;
		chap_secret = chap_en ? block->initiator.chap_password.byte : NULL;

		mchap_en = block->generic.ctrl_flags &
		NVM_ISCSI_CFG_GEN_CHAP_MUTUAL_ENABLED;
		mchap_name = mchap_en ? block->target[idx].chap_name.byte : NULL;
		mchap_secret = mchap_en ? block->target[idx].chap_password.byte : NULL;

		switch (type) {
		case ISCSI_BOOT_TGT_NAME:
		rc = snprintf(str, NVM_ISCSI_CFG_ISCSI_NAME_MAX_LEN, "%s\n",
		block->target[idx].target_name.byte);
		break;
		case ISCSI_BOOT_TGT_IP_ADDR:
		if (ipv6_en)
		rc = snprintf(str, ip_len, "%pI6\n",
		block->target[idx].ipv6_addr.byte);
		else
		rc = snprintf(str, ip_len, "%pI4\n",
		block->target[idx].ipv4_addr.byte);
		break;
		case ISCSI_BOOT_TGT_PORT:
		rc = snprintf(str, 12, "%d\n",
		GET_FIELD2(block->target[idx].generic_cont0,
		NVM_ISCSI_CFG_TARGET_TCP_PORT));
		break;
		case ISCSI_BOOT_TGT_LUN:
		rc = snprintf(str, 22, "%.*d\n",
		block->target[idx].lun.value[1],
		block->target[idx].lun.value[0]);
		break;
		case ISCSI_BOOT_TGT_CHAP_NAME:
		rc = snprintf(str, NVM_ISCSI_CFG_CHAP_NAME_MAX_LEN, "%s\n",
		chap_name);
		break;
		case ISCSI_BOOT_TGT_CHAP_SECRET:
		rc = snprintf(str, NVM_ISCSI_CFG_CHAP_PWD_MAX_LEN, "%s\n",
		chap_secret);
		break;
		case ISCSI_BOOT_TGT_REV_CHAP_NAME:
		rc = snprintf(str, NVM_ISCSI_CFG_CHAP_NAME_MAX_LEN, "%s\n",
		mchap_name);
		break;
		case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
		rc = snprintf(str, NVM_ISCSI_CFG_CHAP_PWD_MAX_LEN, "%s\n",
		mchap_secret);
		break;
		case ISCSI_BOOT_TGT_FLAGS:
		rc = snprintf(str, 3, "%hhd\n", SYSFS_FLAG_FW_SEL_BOOT);
		break;
		case ISCSI_BOOT_TGT_NIC_ASSOC:
		rc = snprintf(str, 3, "0\n");
		break;
		default:
		rc = 0;
		break;
		}

		exit_show_tgt_info:
		return rc;
		}

		static ssize_t qedi_show_boot_tgt_pri_info(void data, int type, char buf)
		{
		struct qedi_ctx *qedi = data;

		return qedi_show_boot_tgt_info(qedi, type, buf, QEDI_NVM_TGT_PRI);
		}

		static ssize_t qedi_show_boot_tgt_sec_info(void data, int type, char buf)
		{
		struct qedi_ctx *qedi = data;

		return qedi_show_boot_tgt_info(qedi, type, buf, QEDI_NVM_TGT_SEC);
		}

		static umode_t qedi_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_LUN:
		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 = 0444;
		break;
		default:
		rc = 0;
		break;
		}
		return rc;
		}

		static void qedi_boot_release(void *data)
		{
		struct qedi_ctx *qedi = data;

		scsi_host_put(qedi->shost);
		}

		static int qedi_get_boot_info(struct qedi_ctx *qedi)
		{
		int ret = 1;
		u16 len;

		len = sizeof(struct nvm_iscsi_cfg);

		QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
		"Get NVM iSCSI CFG image\n");
		ret = qedi_ops->common->nvm_get_image(qedi->cdev,
		QED_NVM_IMAGE_ISCSI_CFG,
		(char *)qedi->iscsi_cfg, len);
		if (ret)
		QEDI_ERR(&qedi->dbg_ctx,
		"Could not get NVM image. ret = %d\n", ret);

		return ret;
		}

		static int qedi_setup_boot_info(struct qedi_ctx *qedi)
		{
		struct iscsi_boot_kobj *boot_kobj;

		if (qedi_get_boot_info(qedi))
		return -EPERM;

		qedi->boot_kset = iscsi_boot_create_host_kset(qedi->shost->host_no);
		if (!qedi->boot_kset)
		goto kset_free;

		if (!scsi_host_get(qedi->shost))
		goto kset_free;

		boot_kobj = iscsi_boot_create_target(qedi->boot_kset, 0, qedi,
		qedi_show_boot_tgt_pri_info,
		qedi_tgt_get_attr_visibility,
		qedi_boot_release);
		if (!boot_kobj)
		goto put_host;

		if (!scsi_host_get(qedi->shost))
		goto kset_free;

		boot_kobj = iscsi_boot_create_target(qedi->boot_kset, 1, qedi,
		qedi_show_boot_tgt_sec_info,
		qedi_tgt_get_attr_visibility,
		qedi_boot_release);
		if (!boot_kobj)
		goto put_host;

		if (!scsi_host_get(qedi->shost))
		goto kset_free;

		boot_kobj = iscsi_boot_create_initiator(qedi->boot_kset, 0, qedi,
		qedi_show_boot_ini_info,
		qedi_ini_get_attr_visibility,
		qedi_boot_release);
		if (!boot_kobj)
		goto put_host;

		if (!scsi_host_get(qedi->shost))
		goto kset_free;

		boot_kobj = iscsi_boot_create_ethernet(qedi->boot_kset, 0, qedi,
		qedi_show_boot_eth_info,
		qedi_eth_get_attr_visibility,
		qedi_boot_release);
		if (!boot_kobj)
		goto put_host;

		return 0;

		put_host:
		scsi_host_put(qedi->shost);
		kset_free:
		iscsi_boot_destroy_kset(qedi->boot_kset);
		return -ENOMEM;
		}

		static void __qedi_remove(struct pci_dev *pdev, int mode)
		{
		struct qedi_ctx *qedi = pci_get_drvdata(pdev);
		@@ -1724,6 +2136,9 @@ static void __qedi_remove(struct pci_dev *pdev, int mode)
		qedi->ll2_recv_thread = NULL;
		}
		qedi_ll2_free_skbs(qedi);

		if (qedi->boot_kset)
		iscsi_boot_destroy_kset(qedi->boot_kset);
		}
		}

		@@ -1967,6 +2382,10 @@ static int __qedi_probe(struct pci_dev *pdev, int mode)
		/* F/w needs 1st task context memory entry for performance */
		set_bit(QEDI_RESERVE_TASK_ID, qedi->task_idx_map);
		atomic_set(&qedi->num_offloads, 0);

		if (qedi_setup_boot_info(qedi))
		QEDI_ERR(&qedi->dbg_ctx,
		"No iSCSI boot target configured\n");
		}

		return 0;

drivers/scsi/qedi/qedi_nvm_iscsi_cfg.h

0 → 100644

+210 −0

Original line number	Diff line number	Diff line
		/*
		* QLogic iSCSI Offload Driver
		* Copyright (c) 2016 Cavium Inc.
		*
		* This software is available under the terms of the GNU General Public License
		* (GPL) Version 2, available from the file COPYING in the main directory of
		* this source tree.
		*/

		#ifndef NVM_ISCSI_CFG_H
		#define NVM_ISCSI_CFG_H

		#define NUM_OF_ISCSI_TARGET_PER_PF 4 /* Defined as per the
		* ISCSI IBFT constraint
		*/
		#define NUM_OF_ISCSI_PF_SUPPORTED 4 /* One PF per Port -
		* assuming 4 port card
		*/

		#define NVM_ISCSI_CFG_DHCP_NAME_MAX_LEN 256

		union nvm_iscsi_dhcp_vendor_id {
		u32 value[NVM_ISCSI_CFG_DHCP_NAME_MAX_LEN / 4];
		u8 byte[NVM_ISCSI_CFG_DHCP_NAME_MAX_LEN];
		};

		#define NVM_ISCSI_IPV4_ADDR_BYTE_LEN 4
		union nvm_iscsi_ipv4_addr {
		u32 addr;
		u8 byte[NVM_ISCSI_IPV4_ADDR_BYTE_LEN];
		};

		#define NVM_ISCSI_IPV6_ADDR_BYTE_LEN 16
		union nvm_iscsi_ipv6_addr {
		u32 addr[4];
		u8 byte[NVM_ISCSI_IPV6_ADDR_BYTE_LEN];
		};

		struct nvm_iscsi_initiator_ipv4 {
		union nvm_iscsi_ipv4_addr addr; /* 0x0 */
		union nvm_iscsi_ipv4_addr subnet_mask; /* 0x4 */
		union nvm_iscsi_ipv4_addr gateway; /* 0x8 */
		union nvm_iscsi_ipv4_addr primary_dns; /* 0xC */
		union nvm_iscsi_ipv4_addr secondary_dns; /* 0x10 */
		union nvm_iscsi_ipv4_addr dhcp_addr; /* 0x14 */

		union nvm_iscsi_ipv4_addr isns_server; /* 0x18 */
		union nvm_iscsi_ipv4_addr slp_server; /* 0x1C */
		union nvm_iscsi_ipv4_addr primay_radius_server; /* 0x20 */
		union nvm_iscsi_ipv4_addr secondary_radius_server; /* 0x24 */

		union nvm_iscsi_ipv4_addr rsvd[4]; /* 0x28 */
		};

		struct nvm_iscsi_initiator_ipv6 {
		union nvm_iscsi_ipv6_addr addr; /* 0x0 */
		union nvm_iscsi_ipv6_addr subnet_mask; /* 0x10 */
		union nvm_iscsi_ipv6_addr gateway; /* 0x20 */
		union nvm_iscsi_ipv6_addr primary_dns; /* 0x30 */
		union nvm_iscsi_ipv6_addr secondary_dns; /* 0x40 */
		union nvm_iscsi_ipv6_addr dhcp_addr; /* 0x50 */

		union nvm_iscsi_ipv6_addr isns_server; /* 0x60 */
		union nvm_iscsi_ipv6_addr slp_server; /* 0x70 */
		union nvm_iscsi_ipv6_addr primay_radius_server; /* 0x80 */
		union nvm_iscsi_ipv6_addr secondary_radius_server; /* 0x90 */

		union nvm_iscsi_ipv6_addr rsvd[3]; /* 0xA0 */

		u32 config; /* 0xD0 */
		#define NVM_ISCSI_CFG_INITIATOR_IPV6_SUBNET_MASK_PREFIX_MASK 0x000000FF
		#define NVM_ISCSI_CFG_INITIATOR_IPV6_SUBNET_MASK_PREFIX_OFFSET 0

		u32 rsvd_1[3];
		};

		#define NVM_ISCSI_CFG_ISCSI_NAME_MAX_LEN 256
		union nvm_iscsi_name {
		u32 value[NVM_ISCSI_CFG_ISCSI_NAME_MAX_LEN / 4];
		u8 byte[NVM_ISCSI_CFG_ISCSI_NAME_MAX_LEN];
		};

		#define NVM_ISCSI_CFG_CHAP_NAME_MAX_LEN 256
		union nvm_iscsi_chap_name {
		u32 value[NVM_ISCSI_CFG_CHAP_NAME_MAX_LEN / 4];
		u8 byte[NVM_ISCSI_CFG_CHAP_NAME_MAX_LEN];
		};

		#define NVM_ISCSI_CFG_CHAP_PWD_MAX_LEN 16 /* md5 need per RFC1996
		* is 16 octets
		*/
		union nvm_iscsi_chap_password {
		u32 value[NVM_ISCSI_CFG_CHAP_PWD_MAX_LEN / 4];
		u8 byte[NVM_ISCSI_CFG_CHAP_PWD_MAX_LEN];
		};

		union nvm_iscsi_lun {
		u8 byte[8];
		u32 value[2];
		};

		struct nvm_iscsi_generic {
		u32 ctrl_flags; /* 0x0 */
		#define NVM_ISCSI_CFG_GEN_CHAP_ENABLED BIT(0)
		#define NVM_ISCSI_CFG_GEN_DHCP_TCPIP_CONFIG_ENABLED BIT(1)
		#define NVM_ISCSI_CFG_GEN_DHCP_ISCSI_CONFIG_ENABLED BIT(2)
		#define NVM_ISCSI_CFG_GEN_IPV6_ENABLED BIT(3)
		#define NVM_ISCSI_CFG_GEN_IPV4_FALLBACK_ENABLED BIT(4)
		#define NVM_ISCSI_CFG_GEN_ISNS_WORLD_LOGIN BIT(5)
		#define NVM_ISCSI_CFG_GEN_ISNS_SELECTIVE_LOGIN BIT(6)
		#define NVM_ISCSI_CFG_GEN_ADDR_REDIRECT_ENABLED BIT(7)
		#define NVM_ISCSI_CFG_GEN_CHAP_MUTUAL_ENABLED BIT(8)

		u32 timeout; /* 0x4 */
		#define NVM_ISCSI_CFG_GEN_DHCP_REQUEST_TIMEOUT_MASK 0x0000FFFF
		#define NVM_ISCSI_CFG_GEN_DHCP_REQUEST_TIMEOUT_OFFSET 0
		#define NVM_ISCSI_CFG_GEN_PORT_LOGIN_TIMEOUT_MASK 0xFFFF0000
		#define NVM_ISCSI_CFG_GEN_PORT_LOGIN_TIMEOUT_OFFSET 16

		union nvm_iscsi_dhcp_vendor_id dhcp_vendor_id; /* 0x8 */
		u32 rsvd[62]; /* 0x108 */
		};

		struct nvm_iscsi_initiator {
		struct nvm_iscsi_initiator_ipv4 ipv4; /* 0x0 */
		struct nvm_iscsi_initiator_ipv6 ipv6; /* 0x38 */

		union nvm_iscsi_name initiator_name; /* 0x118 */
		union nvm_iscsi_chap_name chap_name; /* 0x218 */
		union nvm_iscsi_chap_password chap_password; /* 0x318 */

		u32 generic_cont0; /* 0x398 */
		#define NVM_ISCSI_CFG_INITIATOR_VLAN_MASK 0x0000FFFF
		#define NVM_ISCSI_CFG_INITIATOR_VLAN_OFFSET 0
		#define NVM_ISCSI_CFG_INITIATOR_IP_VERSION_MASK 0x00030000
		#define NVM_ISCSI_CFG_INITIATOR_IP_VERSION_OFFSET 16
		#define NVM_ISCSI_CFG_INITIATOR_IP_VERSION_4 1
		#define NVM_ISCSI_CFG_INITIATOR_IP_VERSION_6 2
		#define NVM_ISCSI_CFG_INITIATOR_IP_VERSION_4_AND_6 3

		u32 ctrl_flags;
		#define NVM_ISCSI_CFG_INITIATOR_IP_VERSION_PRIORITY_V6 BIT(0)
		#define NVM_ISCSI_CFG_INITIATOR_VLAN_ENABLED BIT(1)

		u32 rsvd[116]; /* 0x32C */
		};

		struct nvm_iscsi_target {
		u32 ctrl_flags; /* 0x0 */
		#define NVM_ISCSI_CFG_TARGET_ENABLED BIT(0)
		#define NVM_ISCSI_CFG_BOOT_TIME_LOGIN_STATUS BIT(1)

		u32 generic_cont0; /* 0x4 */
		#define NVM_ISCSI_CFG_TARGET_TCP_PORT_MASK 0x0000FFFF
		#define NVM_ISCSI_CFG_TARGET_TCP_PORT_OFFSET 0

		u32 ip_ver;
		#define NVM_ISCSI_CFG_IPv4 4
		#define NVM_ISCSI_CFG_IPv6 6

		u32 rsvd_1[7]; /* 0x24 */
		union nvm_iscsi_ipv4_addr ipv4_addr; /* 0x28 */
		union nvm_iscsi_ipv6_addr ipv6_addr; /* 0x2C */
		union nvm_iscsi_lun lun; /* 0x3C */

		union nvm_iscsi_name target_name; /* 0x44 */
		union nvm_iscsi_chap_name chap_name; /* 0x144 */
		union nvm_iscsi_chap_password chap_password; /* 0x244 */

		u32 rsvd_2[107]; /* 0x2C4 */
		};

		struct nvm_iscsi_block {
		u32 id; /* 0x0 */
		#define NVM_ISCSI_CFG_BLK_MAPPED_PF_ID_MASK 0x0000000F
		#define NVM_ISCSI_CFG_BLK_MAPPED_PF_ID_OFFSET 0
		#define NVM_ISCSI_CFG_BLK_CTRL_FLAG_MASK 0x00000FF0
		#define NVM_ISCSI_CFG_BLK_CTRL_FLAG_OFFSET 4
		#define NVM_ISCSI_CFG_BLK_CTRL_FLAG_IS_NOT_EMPTY BIT(0)
		#define NVM_ISCSI_CFG_BLK_CTRL_FLAG_PF_MAPPED BIT(1)

		u32 rsvd_1[5]; /* 0x4 */

		struct nvm_iscsi_generic generic; /* 0x18 */
		struct nvm_iscsi_initiator initiator; /* 0x218 */
		struct nvm_iscsi_target target[NUM_OF_ISCSI_TARGET_PER_PF];
		/* 0x718 */

		u32 rsvd_2[58]; /* 0x1718 */
		/* total size - 0x1800 - 6K block */
		};

		struct nvm_iscsi_cfg {
		u32 id; /* 0x0 */
		#define NVM_ISCSI_CFG_BLK_VERSION_MINOR_MASK 0x000000FF
		#define NVM_ISCSI_CFG_BLK_VERSION_MAJOR_MASK 0x0000FF00
		#define NVM_ISCSI_CFG_BLK_SIGNATURE_MASK 0xFFFF0000
		#define NVM_ISCSI_CFG_BLK_SIGNATURE 0x49430000 /* IC - Iscsi
		* Config
		*/

		#define NVM_ISCSI_CFG_BLK_VERSION_MAJOR 0
		#define NVM_ISCSI_CFG_BLK_VERSION_MINOR 10
		#define NVM_ISCSI_CFG_BLK_VERSION ((NVM_ISCSI_CFG_BLK_VERSION_MAJOR << 8) \| \
		NVM_ISCSI_CFG_BLK_VERSION_MINOR)

		struct nvm_iscsi_block block[NUM_OF_ISCSI_PF_SUPPORTED]; /* 0x4 */
		};

		#endif

Admin message