Commit c57ec8fb authored by Nilesh Javali's avatar Nilesh Javali Committed by Martin K. Petersen

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

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: default avatarArun Easi <arun.easi@cavium.com>
Signed-off-by: default avatarAndrew Vasquez <andrew.vasquez@cavium.com>
Signed-off-by: default avatarManish Rangankar <manish.rangankar@cavium.com>
Signed-off-by: default avatarNilesh Javali <nilesh.javali@cavium.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 130568d5
...@@ -23,11 +23,17 @@ ...@@ -23,11 +23,17 @@
#include <linux/qed/qed_iscsi_if.h> #include <linux/qed/qed_iscsi_if.h>
#include <linux/qed/qed_ll2_if.h> #include <linux/qed/qed_ll2_if.h>
#include "qedi_version.h" #include "qedi_version.h"
#include "qedi_nvm_iscsi_cfg.h"
#define QEDI_MODULE_NAME "qedi" #define QEDI_MODULE_NAME "qedi"
struct qedi_endpoint; struct qedi_endpoint;
#ifndef GET_FIELD2
#define GET_FIELD2(value, name) \
(((value) & (name ## _MASK)) >> (name ## _OFFSET))
#endif
/* /*
* PCI function probe defines * PCI function probe defines
*/ */
...@@ -66,6 +72,11 @@ struct qedi_endpoint; ...@@ -66,6 +72,11 @@ struct qedi_endpoint;
#define QEDI_HW_DMA_BOUNDARY 0xfff #define QEDI_HW_DMA_BOUNDARY 0xfff
#define QEDI_PATH_HANDLE 0xFE0000000UL #define QEDI_PATH_HANDLE 0xFE0000000UL
enum qedi_nvm_tgts {
QEDI_NVM_TGT_PRI,
QEDI_NVM_TGT_SEC,
};
struct qedi_uio_ctrl { struct qedi_uio_ctrl {
/* meta data */ /* meta data */
u32 uio_hsi_version; u32 uio_hsi_version;
...@@ -283,6 +294,8 @@ struct qedi_ctx { ...@@ -283,6 +294,8 @@ struct qedi_ctx {
void *bdq_pbl_list; void *bdq_pbl_list;
dma_addr_t bdq_pbl_list_dma; dma_addr_t bdq_pbl_list_dma;
u8 bdq_pbl_list_num_entries; 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_primary_prod;
void __iomem *bdq_secondary_prod; void __iomem *bdq_secondary_prod;
u16 bdq_prod_idx; u16 bdq_prod_idx;
...@@ -337,6 +350,10 @@ struct qedi_ctx { ...@@ -337,6 +350,10 @@ struct qedi_ctx {
bool use_fast_sge; bool use_fast_sge;
atomic_t num_offloads; 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 { struct qedi_work {
......
This diff is collapsed.
/*
* 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
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