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scsi: qedi: Add support for Boot from SAN over iSCSI offload

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This patch adds support for Boot from SAN over iSCSI offload. The iSCSI
boot information in the NVRAM is populated under
/sys/firmware/iscsi_bootX/ using qed NVM-image reading API and further
exported to open-iscsi to perform iSCSI login enabling boot over offload
iSCSI interface in a Boot from SAN environment.

Signed-off-by: Arun Easi <arun.easi@cavium.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@cavium.com>
Signed-off-by: Manish Rangankar <manish.rangankar@cavium.com>
Signed-off-by: Nilesh Javali <nilesh.javali@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Nilesh Javali 2017-06-27 02:26:56 -07:00 committed by Martin K. Petersen
parent 130568d5ea
commit c57ec8fb7c
3 changed files with 646 additions and 0 deletions
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17
drivers/scsi/qedi/qedi.h
View File

@ -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 {

419
drivers/scsi/qedi/qedi_main.c
View File

@ -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;

210
drivers/scsi/qedi/qedi_nvm_iscsi_cfg.h Normal file
View File

@ -0,0 +1,210 @@
/*
* 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