xref: /linux/drivers/scsi/be2iscsi/be_cmds.h (revision c95baf12f5077419db01313ab61c2aac007d40cd)

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright 2017 Broadcom. All Rights Reserved.
 * The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries.
 *
 * Contact Information:
 * linux-drivers@broadcom.com
 */

#ifndef BEISCSI_CMDS_H
#define BEISCSI_CMDS_H

/**
 * The driver sends configuration and managements command requests to the
 * firmware in the BE. These requests are communicated to the processor
 * using Work Request Blocks (WRBs) submitted to the MCC-WRB ring or via one
 * WRB inside a MAILBOX.
 * The commands are serviced by the ARM processor in the OneConnect's MPU.
 */
struct be_sge {
	__le32 pa_lo;
	__le32 pa_hi;
	__le32 len;
};

struct be_mcc_wrb {
	u32 emb_sgecnt_special;	/* dword 0 */
	/* bits 0 - embedded    */
	/* bits 1 - 2 reserved	*/
	/* bits 3 - 7 sge count	*/
	/* bits 8 - 23 reserved	*/
	/* bits 24 - 31 special	*/
#define MCC_WRB_EMBEDDED_MASK 1
#define MCC_WRB_SGE_CNT_SHIFT 3
#define MCC_WRB_SGE_CNT_MASK 0x1F
	u32 payload_length;	/* dword 1 */
	u32 tag0;		/* dword 2 */
	u32 tag1;		/* dword 3 */
	u32 rsvd;		/* dword 4 */
	union {
#define EMBED_MBX_MAX_PAYLOAD_SIZE  220
		u8 embedded_payload[236];	/* used by embedded cmds */
		struct be_sge sgl[19];	/* used by non-embedded cmds */
	} payload;
};

#define CQE_FLAGS_VALID_MASK (1 << 31)
#define CQE_FLAGS_ASYNC_MASK (1 << 30)
#define CQE_FLAGS_COMPLETED_MASK	(1 << 28)
#define CQE_FLAGS_CONSUMED_MASK		(1 << 27)

/* Completion Status */
#define MCC_STATUS_SUCCESS 0x0
#define MCC_STATUS_FAILED 0x1
#define MCC_STATUS_ILLEGAL_REQUEST 0x2
#define MCC_STATUS_ILLEGAL_FIELD 0x3
#define MCC_STATUS_INSUFFICIENT_BUFFER 0x4
#define MCC_STATUS_INVALID_LENGTH 0x74

#define CQE_STATUS_COMPL_MASK	0xFFFF
#define CQE_STATUS_COMPL_SHIFT	0		/* bits 0 - 15 */
#define CQE_STATUS_EXTD_MASK	0xFFFF
#define CQE_STATUS_EXTD_SHIFT	16		/* bits 31 - 16 */
#define CQE_STATUS_ADDL_MASK	0xFF00
#define CQE_STATUS_ADDL_SHIFT	8
#define CQE_STATUS_MASK		0xFF
#define CQE_STATUS_WRB_MASK	0xFF0000
#define CQE_STATUS_WRB_SHIFT	16

#define BEISCSI_HOST_MBX_TIMEOUT (110 * 1000)
#define BEISCSI_FW_MBX_TIMEOUT	100

/* MBOX Command VER */
#define MBX_CMD_VER1	0x01
#define MBX_CMD_VER2	0x02

struct be_mcc_compl {
	u32 status;		/* dword 0 */
	u32 tag0;		/* dword 1 */
	u32 tag1;		/* dword 2 */
	u32 flags;		/* dword 3 */
};

/********* Mailbox door bell *************/
/**
 * Used for driver communication with the FW.
 * The software must write this register twice to post any command. First,
 * it writes the register with hi=1 and the upper bits of the physical address
 * for the MAILBOX structure. Software must poll the ready bit until this
 * is acknowledged. Then, sotware writes the register with hi=0 with the lower
 * bits in the address. It must poll the ready bit until the command is
 * complete. Upon completion, the MAILBOX will contain a valid completion
 * queue entry.
 */
#define MPU_MAILBOX_DB_OFFSET	0x160
#define MPU_MAILBOX_DB_RDY_MASK	0x1	/* bit 0 */
#define MPU_MAILBOX_DB_HI_MASK	0x2	/* bit 1 */

/********** MPU semphore: used for SH & BE ******************/
#define SLIPORT_SOFTRESET_OFFSET		0x5c	/* CSR BAR offset */
#define SLIPORT_SEMAPHORE_OFFSET_BEx		0xac	/* CSR BAR offset */
#define SLIPORT_SEMAPHORE_OFFSET_SH		0x94	/* PCI-CFG offset */
#define POST_STAGE_MASK				0x0000FFFF
#define POST_ERROR_BIT				0x80000000
#define POST_ERR_RECOVERY_CODE_MASK		0xF000

/* Soft Reset register masks */
#define SLIPORT_SOFTRESET_SR_MASK		0x00000080	/* SR bit */

/* MPU semphore POST stage values */
#define POST_STAGE_AWAITING_HOST_RDY	0x1 /* FW awaiting goahead from host */
#define POST_STAGE_HOST_RDY		0x2 /* Host has given go-ahed to FW */
#define POST_STAGE_BE_RESET		0x3 /* Host wants to reset chip */
#define POST_STAGE_ARMFW_RDY		0xC000 /* FW is done with POST */
#define POST_STAGE_RECOVERABLE_ERR	0xE000 /* Recoverable err detected */

/********** MCC door bell ************/
#define DB_MCCQ_OFFSET 0x140
#define DB_MCCQ_RING_ID_MASK 0xFFFF		/* bits 0 - 15 */
/* Number of entries posted */
#define DB_MCCQ_NUM_POSTED_SHIFT 16		/* bits 16 - 29 */

/**
 * When the async bit of mcc_compl is set, the last 4 bytes of
 * mcc_compl is interpreted as follows:
 */
#define ASYNC_TRAILER_EVENT_CODE_SHIFT	8	/* bits 8 - 15 */
#define ASYNC_TRAILER_EVENT_CODE_MASK	0xFF
#define ASYNC_EVENT_CODE_LINK_STATE	0x1
#define ASYNC_EVENT_CODE_ISCSI		0x4
#define ASYNC_EVENT_CODE_SLI		0x11

#define ASYNC_TRAILER_EVENT_TYPE_SHIFT	16	/* bits 16 - 23 */
#define ASYNC_TRAILER_EVENT_TYPE_MASK	0xFF

/* iSCSI events */
#define ASYNC_EVENT_NEW_ISCSI_TGT_DISC	0x4
#define ASYNC_EVENT_NEW_ISCSI_CONN	0x5
#define ASYNC_EVENT_NEW_TCP_CONN	0x7

/* SLI events */
#define ASYNC_SLI_EVENT_TYPE_MISCONFIGURED	0x9
#define ASYNC_SLI_LINK_EFFECT_VALID(le)		(le & 0x80)
#define ASYNC_SLI_LINK_EFFECT_SEV(le)		((le >> 1)  & 0x03)
#define ASYNC_SLI_LINK_EFFECT_STATE(le)		(le & 0x01)

struct be_async_event_trailer {
	u32 code;
};

enum {
	ASYNC_EVENT_LINK_DOWN = 0x0,
	ASYNC_EVENT_LINK_UP = 0x1,
};

/**
 * When the event code of an async trailer is link-state, the mcc_compl
 * must be interpreted as follows
 */
struct be_async_event_link_state {
	u8 physical_port;
	u8 port_link_status;
/**
 * ASYNC_EVENT_LINK_DOWN		0x0
 * ASYNC_EVENT_LINK_UP			0x1
 * ASYNC_EVENT_LINK_LOGICAL_DOWN	0x2
 * ASYNC_EVENT_LINK_LOGICAL_UP		0x3
 */
#define BE_ASYNC_LINK_UP_MASK		0x01
	u8 port_duplex;
	u8 port_speed;
/* BE2ISCSI_LINK_SPEED_ZERO	0x00 - no link */
#define BE2ISCSI_LINK_SPEED_10MBPS	0x01
#define BE2ISCSI_LINK_SPEED_100MBPS	0x02
#define BE2ISCSI_LINK_SPEED_1GBPS	0x03
#define BE2ISCSI_LINK_SPEED_10GBPS	0x04
#define BE2ISCSI_LINK_SPEED_25GBPS	0x06
#define BE2ISCSI_LINK_SPEED_40GBPS	0x07
	u8 port_fault;
	u8 event_reason;
	u16 qos_link_speed;
	u32 event_tag;
	struct be_async_event_trailer trailer;
} __packed;

/**
 * When async-trailer is SLI event, mcc_compl is interpreted as
 */
struct be_async_event_sli {
	u32 event_data1;
	u32 event_data2;
	u32 reserved;
	u32 trailer;
} __packed;

struct be_mcc_mailbox {
	struct be_mcc_wrb wrb;
	struct be_mcc_compl compl;
};

/* Type of subsystems supported by FW */
#define CMD_SUBSYSTEM_COMMON    0x1
#define CMD_SUBSYSTEM_ISCSI     0x2
#define CMD_SUBSYSTEM_ETH       0x3
#define CMD_SUBSYSTEM_ISCSI_INI 0x6
#define CMD_COMMON_TCP_UPLOAD   0x1

/**
 * List of common opcodes subsystem  CMD_SUBSYSTEM_COMMON
 * These opcodes are unique for each subsystem defined above
 */
#define OPCODE_COMMON_CQ_CREATE				12
#define OPCODE_COMMON_EQ_CREATE				13
#define OPCODE_COMMON_MCC_CREATE			21
#define OPCODE_COMMON_MCC_CREATE_EXT			90
#define OPCODE_COMMON_ADD_TEMPLATE_HEADER_BUFFERS	24
#define OPCODE_COMMON_REMOVE_TEMPLATE_HEADER_BUFFERS	25
#define OPCODE_COMMON_GET_CNTL_ATTRIBUTES		32
#define OPCODE_COMMON_GET_FW_VERSION			35
#define OPCODE_COMMON_MODIFY_EQ_DELAY			41
#define OPCODE_COMMON_FIRMWARE_CONFIG			42
#define OPCODE_COMMON_MCC_DESTROY			53
#define OPCODE_COMMON_CQ_DESTROY			54
#define OPCODE_COMMON_EQ_DESTROY			55
#define OPCODE_COMMON_QUERY_FIRMWARE_CONFIG		58
#define OPCODE_COMMON_FUNCTION_RESET			61
#define OPCODE_COMMON_GET_PORT_NAME			77
#define OPCODE_COMMON_SET_HOST_DATA			93
#define OPCODE_COMMON_SET_FEATURES			191

/**
 * LIST of opcodes that are common between Initiator and Target
 * used by CMD_SUBSYSTEM_ISCSI
 * These opcodes are unique for each subsystem defined above
 */
#define OPCODE_COMMON_ISCSI_CFG_POST_SGL_PAGES		2
#define OPCODE_COMMON_ISCSI_CFG_REMOVE_SGL_PAGES        3
#define OPCODE_COMMON_ISCSI_NTWK_GET_NIC_CONFIG		7
#define OPCODE_COMMON_ISCSI_NTWK_SET_VLAN		14
#define OPCODE_COMMON_ISCSI_NTWK_CONFIG_STATELESS_IP_ADDR	17
#define OPCODE_COMMON_ISCSI_NTWK_REL_STATELESS_IP_ADDR	18
#define OPCODE_COMMON_ISCSI_NTWK_MODIFY_IP_ADDR		21
#define OPCODE_COMMON_ISCSI_NTWK_GET_DEFAULT_GATEWAY	22
#define OPCODE_COMMON_ISCSI_NTWK_MODIFY_DEFAULT_GATEWAY 23
#define OPCODE_COMMON_ISCSI_NTWK_GET_ALL_IF_ID		24
#define OPCODE_COMMON_ISCSI_NTWK_GET_IF_INFO		25
#define OPCODE_COMMON_ISCSI_SET_FRAGNUM_BITS_FOR_SGL_CRA 61
#define OPCODE_COMMON_ISCSI_DEFQ_CREATE                 64
#define OPCODE_COMMON_ISCSI_DEFQ_DESTROY		65
#define OPCODE_COMMON_ISCSI_WRBQ_CREATE			66
#define OPCODE_COMMON_ISCSI_WRBQ_DESTROY		67

struct be_cmd_req_hdr {
	u8 opcode;		/* dword 0 */
	u8 subsystem;		/* dword 0 */
	u8 port_number;		/* dword 0 */
	u8 domain;		/* dword 0 */
	u32 timeout;		/* dword 1 */
	u32 request_length;	/* dword 2 */
	u8 version;		/* dword 3 */
	u8 rsvd0[3];		/* dword 3 */
};

struct be_cmd_resp_hdr {
	u32 info;		/* dword 0 */
	u32 status;		/* dword 1 */
	u32 response_length;	/* dword 2 */
	u32 actual_resp_len;	/* dword 3 */
};

struct phys_addr {
	u32 lo;
	u32 hi;
};

struct virt_addr {
	u32 lo;
	u32 hi;
};
/**************************
 * BE Command definitions *
 **************************/

/**
 * Pseudo amap definition in which each bit of the actual structure is defined
 * as a byte - used to calculate offset/shift/mask of each field
 */
struct amap_eq_context {
	u8 cidx[13];		/* dword 0 */
	u8 rsvd0[3];		/* dword 0 */
	u8 epidx[13];		/* dword 0 */
	u8 valid;		/* dword 0 */
	u8 rsvd1;		/* dword 0 */
	u8 size;		/* dword 0 */
	u8 pidx[13];		/* dword 1 */
	u8 rsvd2[3];		/* dword 1 */
	u8 pd[10];		/* dword 1 */
	u8 count[3];		/* dword 1 */
	u8 solevent;		/* dword 1 */
	u8 stalled;		/* dword 1 */
	u8 armed;		/* dword 1 */
	u8 rsvd3[4];		/* dword 2 */
	u8 func[8];		/* dword 2 */
	u8 rsvd4;		/* dword 2 */
	u8 delaymult[10];	/* dword 2 */
	u8 rsvd5[2];		/* dword 2 */
	u8 phase[2];		/* dword 2 */
	u8 nodelay;		/* dword 2 */
	u8 rsvd6[4];		/* dword 2 */
	u8 rsvd7[32];		/* dword 3 */
} __packed;

struct be_cmd_req_eq_create {
	struct be_cmd_req_hdr hdr;	/* dw[4] */
	u16 num_pages;		/* sword */
	u16 rsvd0;		/* sword */
	u8 context[sizeof(struct amap_eq_context) / 8];	/* dw[4] */
	struct phys_addr pages[8];
} __packed;

struct be_cmd_resp_eq_create {
	struct be_cmd_resp_hdr resp_hdr;
	u16 eq_id;		/* sword */
	u16 rsvd0;		/* sword */
} __packed;

struct be_set_eqd {
	u32 eq_id;
	u32 phase;
	u32 delay_multiplier;
} __packed;

struct mgmt_chap_format {
	u32 flags;
	u8  intr_chap_name[256];
	u8  intr_secret[16];
	u8  target_chap_name[256];
	u8  target_secret[16];
	u16 intr_chap_name_length;
	u16 intr_secret_length;
	u16 target_chap_name_length;
	u16 target_secret_length;
} __packed;

struct mgmt_auth_method_format {
	u8	auth_method_type;
	u8	padding[3];
	struct	mgmt_chap_format chap;
} __packed;

struct be_cmd_req_logout_fw_sess {
	struct be_cmd_req_hdr hdr;	/* dw[4] */
	uint32_t session_handle;
} __packed;

struct be_cmd_resp_logout_fw_sess {
	struct be_cmd_resp_hdr hdr;	/* dw[4] */
	uint32_t session_status;
#define BE_SESS_STATUS_CLOSE		0x20
} __packed;

struct mgmt_conn_login_options {
	u8 flags;
	u8 header_digest;
	u8 data_digest;
	u8 rsvd0;
	u32 max_recv_datasegment_len_ini;
	u32 max_recv_datasegment_len_tgt;
	u32 tcp_mss;
	u32 tcp_window_size;
	struct	mgmt_auth_method_format auth_data;
} __packed;

struct ip_addr_format {
	u16 size_of_structure;
	u8 reserved;
	u8 ip_type;
#define BEISCSI_IP_TYPE_V4		0x1
#define BEISCSI_IP_TYPE_STATIC_V4	0x3
#define BEISCSI_IP_TYPE_DHCP_V4		0x5
/* type v4 values < type v6 values */
#define BEISCSI_IP_TYPE_V6		0x10
#define BEISCSI_IP_TYPE_ROUTABLE_V6	0x30
#define BEISCSI_IP_TYPE_LINK_LOCAL_V6	0x50
#define BEISCSI_IP_TYPE_AUTO_V6		0x90
	u8 addr[16];
	u32 rsvd0;
} __packed;

struct mgmt_conn_info {
	u32	connection_handle;
	u32	connection_status;
	u16	src_port;
	u16	dest_port;
	u16	dest_port_redirected;
	u16	cid;
	u32	estimated_throughput;
	struct	ip_addr_format	src_ipaddr;
	struct	ip_addr_format	dest_ipaddr;
	struct	ip_addr_format	dest_ipaddr_redirected;
	struct	mgmt_conn_login_options	negotiated_login_options;
} __packed;

struct mgmt_session_login_options {
	u8	flags;
	u8	error_recovery_level;
	u16	rsvd0;
	u32	first_burst_length;
	u32	max_burst_length;
	u16	max_connections;
	u16	max_outstanding_r2t;
	u16	default_time2wait;
	u16	default_time2retain;
} __packed;

struct mgmt_session_info {
	u32	session_handle;
	u32	status;
	u8	isid[6];
	u16	tsih;
	u32	session_flags;
	u16	conn_count;
	u16	pad;
	u8	target_name[224];
	u8	initiator_iscsiname[224];
	struct	mgmt_session_login_options negotiated_login_options;
	struct	mgmt_conn_info	conn_list[1];
} __packed;

struct be_cmd_get_session_req {
	struct be_cmd_req_hdr hdr;
	u32 session_handle;
} __packed;

struct be_cmd_get_session_resp {
	struct be_cmd_resp_hdr hdr;
	struct mgmt_session_info session_info;
} __packed;

struct mac_addr {
	u16 size_of_structure;
	u8 addr[ETH_ALEN];
} __packed;

struct be_cmd_get_boot_target_req {
	struct be_cmd_req_hdr hdr;
} __packed;

struct be_cmd_get_boot_target_resp {
	struct be_cmd_resp_hdr hdr;
	u32 boot_session_count;
	u32 boot_session_handle;
/**
 * FW returns 0xffffffff if it couldn't establish connection with
 * configured boot target.
 */
#define BE_BOOT_INVALID_SHANDLE	0xffffffff
};

struct be_cmd_reopen_session_req {
	struct be_cmd_req_hdr hdr;
#define BE_REOPEN_ALL_SESSIONS  0x00
#define BE_REOPEN_BOOT_SESSIONS 0x01
#define BE_REOPEN_A_SESSION     0x02
	u16 reopen_type;
	u16 rsvd;
	u32 session_handle;
} __packed;

struct be_cmd_reopen_session_resp {
	struct be_cmd_resp_hdr hdr;
	u32 rsvd;
	u32 session_handle;
} __packed;


struct be_cmd_mac_query_req {
	struct be_cmd_req_hdr hdr;
	u8 type;
	u8 permanent;
	u16 if_id;
} __packed;

struct be_cmd_get_mac_resp {
	struct be_cmd_resp_hdr hdr;
	struct mac_addr mac;
};

struct be_ip_addr_subnet_format {
	u16 size_of_structure;
	u8 ip_type;
	u8 ipv6_prefix_length;
	u8 addr[16];
	u8 subnet_mask[16];
	u32 rsvd0;
} __packed;

struct be_cmd_get_if_info_req {
	struct be_cmd_req_hdr hdr;
	u32 interface_hndl;
	u32 ip_type;
} __packed;

struct be_cmd_get_if_info_resp {
	struct be_cmd_req_hdr hdr;
	u32 interface_hndl;
	u32 vlan_priority;
	u32 ip_addr_count;
	u32 dhcp_state;
	struct be_ip_addr_subnet_format ip_addr;
} __packed;

struct be_ip_addr_record {
	u32 action;
	u32 interface_hndl;
	struct be_ip_addr_subnet_format ip_addr;
	u32 status;
} __packed;

struct be_ip_addr_record_params {
	u32 record_entry_count;
	struct be_ip_addr_record ip_record;
} __packed;

struct be_cmd_set_ip_addr_req {
	struct be_cmd_req_hdr hdr;
	struct be_ip_addr_record_params ip_params;
} __packed;


struct be_cmd_set_dhcp_req {
	struct be_cmd_req_hdr hdr;
	u32 interface_hndl;
	u32 ip_type;
	u32 flags;
	u32 retry_count;
} __packed;

struct be_cmd_rel_dhcp_req {
	struct be_cmd_req_hdr hdr;
	u32 interface_hndl;
	u32 ip_type;
} __packed;

struct be_cmd_set_def_gateway_req {
	struct be_cmd_req_hdr hdr;
	u32 action;
	struct ip_addr_format ip_addr;
} __packed;

struct be_cmd_get_def_gateway_req {
	struct be_cmd_req_hdr hdr;
	u32 ip_type;
} __packed;

struct be_cmd_get_def_gateway_resp {
	struct be_cmd_req_hdr hdr;
	struct ip_addr_format ip_addr;
} __packed;

#define BEISCSI_VLAN_DISABLE	0xFFFF
struct be_cmd_set_vlan_req {
	struct be_cmd_req_hdr hdr;
	u32 interface_hndl;
	u32 vlan_priority;
} __packed;
/******************** Create CQ ***************************/
/**
 * Pseudo amap definition in which each bit of the actual structure is defined
 * as a byte - used to calculate offset/shift/mask of each field
 */
struct amap_cq_context {
	u8 cidx[11];		/* dword 0 */
	u8 rsvd0;		/* dword 0 */
	u8 coalescwm[2];	/* dword 0 */
	u8 nodelay;		/* dword 0 */
	u8 epidx[11];		/* dword 0 */
	u8 rsvd1;		/* dword 0 */
	u8 count[2];		/* dword 0 */
	u8 valid;		/* dword 0 */
	u8 solevent;		/* dword 0 */
	u8 eventable;		/* dword 0 */
	u8 pidx[11];		/* dword 1 */
	u8 rsvd2;		/* dword 1 */
	u8 pd[10];		/* dword 1 */
	u8 eqid[8];		/* dword 1 */
	u8 stalled;		/* dword 1 */
	u8 armed;		/* dword 1 */
	u8 rsvd3[4];		/* dword 2 */
	u8 func[8];		/* dword 2 */
	u8 rsvd4[20];		/* dword 2 */
	u8 rsvd5[32];		/* dword 3 */
} __packed;

struct amap_cq_context_v2 {
	u8 rsvd0[12];   /* dword 0 */
	u8 coalescwm[2];    /* dword 0 */
	u8 nodelay;     /* dword 0 */
	u8 rsvd1[12];   /* dword 0 */
	u8 count[2];    /* dword 0 */
	u8 valid;       /* dword 0 */
	u8 rsvd2;       /* dword 0 */
	u8 eventable;   /* dword 0 */
	u8 eqid[16];    /* dword 1 */
	u8 rsvd3[15];   /* dword 1 */
	u8 armed;       /* dword 1 */
	u8 cqecount[16];/* dword 2 */
	u8 rsvd4[16];   /* dword 2 */
	u8 rsvd5[32];   /* dword 3 */
};

struct be_cmd_req_cq_create {
	struct be_cmd_req_hdr hdr;
	u16 num_pages;
	u8 page_size;
	u8 rsvd0;
	u8 context[sizeof(struct amap_cq_context) / 8];
	struct phys_addr pages[4];
} __packed;

struct be_cmd_resp_cq_create {
	struct be_cmd_resp_hdr hdr;
	u16 cq_id;
	u16 rsvd0;
} __packed;

/******************** Create MCCQ ***************************/
/**
 * Pseudo amap definition in which each bit of the actual structure is defined
 * as a byte - used to calculate offset/shift/mask of each field
 */
struct amap_mcc_context {
	u8 con_index[14];
	u8 rsvd0[2];
	u8 ring_size[4];
	u8 fetch_wrb;
	u8 fetch_r2t;
	u8 cq_id[10];
	u8 prod_index[14];
	u8 fid[8];
	u8 pdid[9];
	u8 valid;
	u8 rsvd1[32];
	u8 rsvd2[32];
} __packed;

struct be_cmd_req_mcc_create_ext {
	struct be_cmd_req_hdr hdr;
	u16 num_pages;
	u16 rsvd0;
	u32 async_evt_bitmap;
	u8 context[sizeof(struct amap_mcc_context) / 8];
	struct phys_addr pages[8];
} __packed;

struct be_cmd_resp_mcc_create {
	struct be_cmd_resp_hdr hdr;
	u16 id;
	u16 rsvd0;
} __packed;

/******************** Q Destroy  ***************************/
/* Type of Queue to be destroyed */
enum {
	QTYPE_EQ = 1,
	QTYPE_CQ,
	QTYPE_MCCQ,
	QTYPE_WRBQ,
	QTYPE_DPDUQ,
	QTYPE_SGL
};

struct be_cmd_req_q_destroy {
	struct be_cmd_req_hdr hdr;
	u16 id;
	u16 bypass_flush;	/* valid only for rx q destroy */
} __packed;

struct macaddr {
	u8 byte[ETH_ALEN];
};

struct be_cmd_req_mcast_mac_config {
	struct be_cmd_req_hdr hdr;
	u16 num_mac;
	u8 promiscuous;
	u8 interface_id;
	struct macaddr mac[32];
} __packed;

static inline void *embedded_payload(struct be_mcc_wrb *wrb)
{
	return wrb->payload.embedded_payload;
}

static inline struct be_sge *nonembedded_sgl(struct be_mcc_wrb *wrb)
{
	return &wrb->payload.sgl[0];
}

/******************** Modify EQ Delay *******************/
struct be_cmd_req_modify_eq_delay {
	struct be_cmd_req_hdr hdr;
	__le32 num_eq;
	struct {
		__le32 eq_id;
		__le32 phase;
		__le32 delay_multiplier;
	} delay[MAX_CPUS];
} __packed;

/******************** Get MAC ADDR *******************/

struct be_cmd_get_nic_conf_resp {
	struct be_cmd_resp_hdr hdr;
	u32 nic_port_count;
	u32 speed;
	u32 max_speed;
	u32 link_state;
	u32 max_frame_size;
	u16 size_of_structure;
	u8 mac_address[ETH_ALEN];
} __packed;

/******************** Get HBA NAME *******************/

struct be_cmd_hba_name {
	struct be_cmd_req_hdr hdr;
	u16 flags;
	u16 rsvd0;
	u8 initiator_name[ISCSI_NAME_LEN];
#define BE_INI_ALIAS_LEN 32
	u8 initiator_alias[BE_INI_ALIAS_LEN];
} __packed;

/******************** COMMON SET HOST DATA *******************/
#define BE_CMD_SET_HOST_PARAM_ID	0x2
#define BE_CMD_MAX_DRV_VERSION		0x30
struct be_sethost_req {
	u32 param_id;
	u32 param_len;
	u32 param_data[32];
};

struct be_sethost_resp {
	u32 rsvd0;
};

struct be_cmd_set_host_data {
	union {
		struct be_cmd_req_hdr req_hdr;
		struct be_cmd_resp_hdr resp_hdr;
	} h;
	union {
		struct be_sethost_req req;
		struct be_sethost_resp resp;
	} param;
} __packed;

/******************** COMMON SET Features *******************/
#define BE_CMD_SET_FEATURE_UER	0x10
#define BE_CMD_UER_SUPP_BIT	0x1
struct be_uer_req {
	u32 uer;
	u32 rsvd;
};

struct be_uer_resp {
	u32 uer;
	u16 ue2rp;
	u16 ue2sr;
};

struct be_cmd_set_features {
	union {
		struct be_cmd_req_hdr req_hdr;
		struct be_cmd_resp_hdr resp_hdr;
	} h;
	u32 feature;
	u32 param_len;
	union {
		struct be_uer_req req;
		struct be_uer_resp resp;
		u32 rsvd[2];
	} param;
} __packed;

int beiscsi_cmd_function_reset(struct beiscsi_hba *phba);

int beiscsi_cmd_special_wrb(struct be_ctrl_info *ctrl, u32 load);

int beiscsi_check_fw_rdy(struct beiscsi_hba *phba);

int beiscsi_init_sliport(struct beiscsi_hba *phba);

int beiscsi_cmd_iscsi_cleanup(struct beiscsi_hba *phba, unsigned short ulp_num);

int beiscsi_detect_ue(struct beiscsi_hba *phba);

int beiscsi_detect_tpe(struct beiscsi_hba *phba);

int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl,
			  struct be_queue_info *eq, int eq_delay);

int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl,
			  struct be_queue_info *cq, struct be_queue_info *eq,
			  bool sol_evts, bool no_delay,
			  int num_cqe_dma_coalesce);

int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
			  int type);
int beiscsi_cmd_mccq_create(struct beiscsi_hba *phba,
			struct be_queue_info *mccq,
			struct be_queue_info *cq);

void free_mcc_wrb(struct be_ctrl_info *ctrl, unsigned int tag);

int beiscsi_modify_eq_delay(struct beiscsi_hba *phba, struct be_set_eqd *,
			    int num);
int beiscsi_mccq_compl_wait(struct beiscsi_hba *phba,
			    unsigned int tag,
			    struct be_mcc_wrb **wrb,
			    struct be_dma_mem *mbx_cmd_mem);
int __beiscsi_mcc_compl_status(struct beiscsi_hba *phba,
			       unsigned int tag,
			       struct be_mcc_wrb **wrb,
			       struct be_dma_mem *mbx_cmd_mem);
struct be_mcc_wrb *wrb_from_mbox(struct be_dma_mem *mbox_mem);
void be_mcc_notify(struct beiscsi_hba *phba, unsigned int tag);
struct be_mcc_wrb *alloc_mcc_wrb(struct beiscsi_hba *phba,
				 unsigned int *ref_tag);
void beiscsi_process_async_event(struct beiscsi_hba *phba,
				struct be_mcc_compl *compl);
int beiscsi_process_mcc_compl(struct be_ctrl_info *ctrl,
			      struct be_mcc_compl *compl);

int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
				    struct be_queue_info *cq,
				    struct be_queue_info *dq, int length,
				    int entry_size, uint8_t is_header,
				    uint8_t ulp_num);

int be_cmd_iscsi_post_template_hdr(struct be_ctrl_info *ctrl,
				    struct be_dma_mem *q_mem);

int be_cmd_iscsi_remove_template_hdr(struct be_ctrl_info *ctrl);

int be_cmd_iscsi_post_sgl_pages(struct be_ctrl_info *ctrl,
				struct be_dma_mem *q_mem, u32 page_offset,
				u32 num_pages);

int be_cmd_wrbq_create(struct be_ctrl_info *ctrl, struct be_dma_mem *q_mem,
		       struct be_queue_info *wrbq,
		       struct hwi_wrb_context *pwrb_context,
		       uint8_t ulp_num);

/* Configuration Functions */
int be_cmd_set_vlan(struct beiscsi_hba *phba, uint16_t vlan_tag);

int beiscsi_check_supported_fw(struct be_ctrl_info *ctrl,
			       struct beiscsi_hba *phba);

int beiscsi_get_fw_config(struct be_ctrl_info *ctrl, struct beiscsi_hba *phba);

int beiscsi_get_port_name(struct be_ctrl_info *ctrl, struct beiscsi_hba *phba);

int beiscsi_set_uer_feature(struct beiscsi_hba *phba);
int beiscsi_set_host_data(struct beiscsi_hba *phba);

struct be_default_pdu_context {
	u32 dw[4];
} __packed;

struct amap_be_default_pdu_context {
	u8 dbuf_cindex[13];	/* dword 0 */
	u8 rsvd0[3];		/* dword 0 */
	u8 ring_size[4];	/* dword 0 */
	u8 ring_state[4];	/* dword 0 */
	u8 rsvd1[8];		/* dword 0 */
	u8 dbuf_pindex[13];	/* dword 1 */
	u8 rsvd2;		/* dword 1 */
	u8 pci_func_id[8];	/* dword 1 */
	u8 rx_pdid[9];		/* dword 1 */
	u8 rx_pdid_valid;	/* dword 1 */
	u8 default_buffer_size[16];	/* dword 2 */
	u8 cq_id_recv[10];	/* dword 2 */
	u8 rx_pdid_not_valid;	/* dword 2 */
	u8 rsvd3[5];		/* dword 2 */
	u8 rsvd4[32];		/* dword 3 */
} __packed;

struct amap_default_pdu_context_ext {
	u8 rsvd0[16];   /* dword 0 */
	u8 ring_size[4];    /* dword 0 */
	u8 rsvd1[12];   /* dword 0 */
	u8 rsvd2[22];   /* dword 1 */
	u8 rx_pdid[9];  /* dword 1 */
	u8 rx_pdid_valid;   /* dword 1 */
	u8 default_buffer_size[16]; /* dword 2 */
	u8 cq_id_recv[16];  /* dword 2 */
	u8 rsvd3[32];   /* dword 3 */
} __packed;

struct be_defq_create_req {
	struct be_cmd_req_hdr hdr;
	u16 num_pages;
	u8 ulp_num;
#define BEISCSI_DUAL_ULP_AWARE_BIT	0	/* Byte 3 - Bit 0 */
#define BEISCSI_BIND_Q_TO_ULP_BIT	1	/* Byte 3 - Bit 1 */
	u8 dua_feature;
	struct be_default_pdu_context context;
	struct phys_addr pages[8];
} __packed;

struct be_defq_create_resp {
	struct be_cmd_req_hdr hdr;
	u16 id;
	u8 rsvd0;
	u8 ulp_num;
	u32 doorbell_offset;
	u16 register_set;
	u16 doorbell_format;
} __packed;

struct be_post_template_pages_req {
	struct be_cmd_req_hdr hdr;
	u16 num_pages;
#define BEISCSI_TEMPLATE_HDR_TYPE_ISCSI	0x1
	u16 type;
	struct phys_addr scratch_pa;
	struct virt_addr scratch_va;
	struct virt_addr pages_va;
	struct phys_addr pages[16];
} __packed;

struct be_remove_template_pages_req {
	struct be_cmd_req_hdr hdr;
	u16 type;
	u16 rsvd0;
} __packed;

struct be_post_sgl_pages_req {
	struct be_cmd_req_hdr hdr;
	u16 num_pages;
	u16 page_offset;
	u32 rsvd0;
	struct phys_addr pages[26];
	u32 rsvd1;
} __packed;

struct be_wrbq_create_req {
	struct be_cmd_req_hdr hdr;
	u16 num_pages;
	u8 ulp_num;
	u8 dua_feature;
	struct phys_addr pages[8];
} __packed;

struct be_wrbq_create_resp {
	struct be_cmd_resp_hdr resp_hdr;
	u16 cid;
	u8 rsvd0;
	u8 ulp_num;
	u32 doorbell_offset;
	u16 register_set;
	u16 doorbell_format;
} __packed;

#define SOL_CID_MASK		0x0000FFC0
#define SOL_CODE_MASK		0x0000003F
#define SOL_WRB_INDEX_MASK	0x00FF0000
#define SOL_CMD_WND_MASK	0xFF000000
#define SOL_RES_CNT_MASK	0x7FFFFFFF
#define SOL_EXP_CMD_SN_MASK	0xFFFFFFFF
#define SOL_HW_STS_MASK		0x000000FF
#define SOL_STS_MASK		0x0000FF00
#define SOL_RESP_MASK		0x00FF0000
#define SOL_FLAGS_MASK		0x7F000000
#define SOL_S_MASK		0x80000000

struct sol_cqe {
	u32 dw[4];
};

struct amap_sol_cqe {
	u8 hw_sts[8];		/* dword 0 */
	u8 i_sts[8];		/* dword 0 */
	u8 i_resp[8];		/* dword 0 */
	u8 i_flags[7];		/* dword 0 */
	u8 s;			/* dword 0 */
	u8 i_exp_cmd_sn[32];	/* dword 1 */
	u8 code[6];		/* dword 2 */
	u8 cid[10];		/* dword 2 */
	u8 wrb_index[8];	/* dword 2 */
	u8 i_cmd_wnd[8];	/* dword 2 */
	u8 i_res_cnt[31];	/* dword 3 */
	u8 valid;		/* dword 3 */
} __packed;

#define SOL_ICD_INDEX_MASK	0x0003FFC0
struct amap_sol_cqe_ring {
	u8 hw_sts[8];		/* dword 0 */
	u8 i_sts[8];		/* dword 0 */
	u8 i_resp[8];		/* dword 0 */
	u8 i_flags[7];		/* dword 0 */
	u8 s;			/* dword 0 */
	u8 i_exp_cmd_sn[32];	/* dword 1 */
	u8 code[6];		/* dword 2 */
	u8 icd_index[12];	/* dword 2 */
	u8 rsvd[6];		/* dword 2 */
	u8 i_cmd_wnd[8];	/* dword 2 */
	u8 i_res_cnt[31];	/* dword 3 */
	u8 valid;		/* dword 3 */
} __packed;

struct amap_sol_cqe_v2 {
	u8 hw_sts[8];   /* dword 0 */
	u8 i_sts[8];    /* dword 0 */
	u8 wrb_index[16];   /* dword 0 */
	u8 i_exp_cmd_sn[32];    /* dword 1 */
	u8 code[6]; /* dword 2 */
	u8 cmd_cmpl;    /* dword 2 */
	u8 rsvd0;   /* dword 2 */
	u8 i_cmd_wnd[8];    /* dword 2 */
	u8 cid[13]; /* dword 2 */
	u8 u;   /* dword 2 */
	u8 o;   /* dword 2 */
	u8 s;   /* dword 2 */
	u8 i_res_cnt[31];   /* dword 3 */
	u8 valid;   /* dword 3 */
} __packed;

struct common_sol_cqe {
	u32 exp_cmdsn;
	u32 res_cnt;
	u16 wrb_index;
	u16 cid;
	u8 hw_sts;
	u8 cmd_wnd;
	u8 res_flag; /* the s feild of structure */
	u8 i_resp; /* for skh if cmd_complete is set then i_sts is response */
	u8 i_flags; /* for skh or the u and o feilds */
	u8 i_sts; /* for skh if cmd_complete is not-set then i_sts is status */
};

/*** iSCSI ack/driver message completions ***/
struct amap_it_dmsg_cqe {
	u8 ack_num[32]; /* DWORD 0 */
	u8 pdu_bytes_rcvd[32];  /* DWORD 1 */
	u8 code[6]; /* DWORD 2 */
	u8 cid[10]; /* DWORD 2 */
	u8 wrb_idx[8];  /* DWORD 2 */
	u8 rsvd0[8];    /* DWORD 2*/
	u8 rsvd1[31];   /* DWORD 3*/
	u8 valid;   /* DWORD 3 */
} __packed;

struct amap_it_dmsg_cqe_v2 {
	u8 ack_num[32]; /* DWORD 0 */
	u8 pdu_bytes_rcvd[32];  /* DWORD 1 */
	u8 code[6]; /* DWORD 2 */
	u8 rsvd0[10];   /* DWORD 2 */
	u8 wrb_idx[16]; /* DWORD 2 */
	u8 rsvd1[16];   /* DWORD 3 */
	u8 cid[13]; /* DWORD 3 */
	u8 rsvd2[2];    /* DWORD 3 */
	u8 valid;   /* DWORD 3 */
} __packed;


/**
 * Post WRB Queue Doorbell Register used by the host Storage
 * stack to notify the
 * controller of a posted Work Request Block
 */
#define DB_WRB_POST_CID_MASK		0xFFFF	/* bits 0 - 16 */
#define DB_DEF_PDU_WRB_INDEX_MASK	0xFF	/* bits 0 - 9 */

#define DB_DEF_PDU_WRB_INDEX_SHIFT	16
#define DB_DEF_PDU_NUM_POSTED_SHIFT	24

struct fragnum_bits_for_sgl_cra_in {
	struct be_cmd_req_hdr hdr;
	u32 num_bits;
} __packed;

struct iscsi_cleanup_req {
	struct be_cmd_req_hdr hdr;
	u16 chute;
	u8 hdr_ring_id;
	u8 data_ring_id;
} __packed;

struct iscsi_cleanup_req_v1 {
	struct be_cmd_req_hdr hdr;
	u16 chute;
	u16 rsvd1;
	u16 hdr_ring_id;
	u16 rsvd2;
	u16 data_ring_id;
	u16 rsvd3;
} __packed;

struct eq_delay {
	u32 eq_id;
	u32 phase;
	u32 delay_multiplier;
} __packed;

struct be_eq_delay_params_in {
	struct be_cmd_req_hdr hdr;
	u32 num_eq;
	struct eq_delay delay[8];
} __packed;

struct tcp_connect_and_offload_in {
	struct be_cmd_req_hdr hdr;
	struct ip_addr_format ip_address;
	u16 tcp_port;
	u16 cid;
	u16 cq_id;
	u16 defq_id;
	struct phys_addr dataout_template_pa;
	u16 hdr_ring_id;
	u16 data_ring_id;
	u8 do_offload;
	u8 rsvd0[3];
} __packed;

struct tcp_connect_and_offload_in_v1 {
	struct be_cmd_req_hdr hdr;
	struct ip_addr_format ip_address;
	u16 tcp_port;
	u16 cid;
	u16 cq_id;
	u16 defq_id;
	struct phys_addr dataout_template_pa;
	u16 hdr_ring_id;
	u16 data_ring_id;
	u8 do_offload;
	u8 ifd_state;
	u8 rsvd0[2];
	u16 tcp_window_size;
	u8 tcp_window_scale_count;
	u8 rsvd1;
	u32 tcp_mss:24;
	u8 rsvd2;
} __packed;

struct tcp_connect_and_offload_out {
	struct be_cmd_resp_hdr hdr;
	u32 connection_handle;
	u16 cid;
	u16 rsvd0;

} __packed;

#define DB_DEF_PDU_RING_ID_MASK	0x3FFF	/* bits 0 - 13 */
#define DB_DEF_PDU_CQPROC_MASK		0x3FFF	/* bits 16 - 29 */
#define DB_DEF_PDU_REARM_SHIFT		14
#define DB_DEF_PDU_EVENT_SHIFT		15
#define DB_DEF_PDU_CQPROC_SHIFT		16

struct be_invalidate_connection_params_in {
	struct be_cmd_req_hdr hdr;
	u32 session_handle;
	u16 cid;
	u16 unused;
#define BE_CLEANUP_TYPE_INVALIDATE	0x8001
#define BE_CLEANUP_TYPE_ISSUE_TCP_RST	0x8002
	u16 cleanup_type;
	u16 save_cfg;
} __packed;

struct be_invalidate_connection_params_out {
	u32 session_handle;
	u16 cid;
	u16 unused;
} __packed;

union be_invalidate_connection_params {
	struct be_invalidate_connection_params_in req;
	struct be_invalidate_connection_params_out resp;
} __packed;

struct be_tcp_upload_params_in {
	struct be_cmd_req_hdr hdr;
	u16 id;
#define BE_UPLOAD_TYPE_GRACEFUL		1
/* abortive upload with reset */
#define BE_UPLOAD_TYPE_ABORT_RESET	2
/* abortive upload without reset */
#define BE_UPLOAD_TYPE_ABORT		3
/* abortive upload with reset, sequence number by driver */
#define BE_UPLOAD_TYPE_ABORT_WITH_SEQ	4
	u16 upload_type;
	u32 reset_seq;
} __packed;

struct be_tcp_upload_params_out {
	u32 dw[32];
} __packed;

union be_tcp_upload_params {
	struct be_tcp_upload_params_in request;
	struct be_tcp_upload_params_out response;
} __packed;

struct be_ulp_fw_cfg {
#define BEISCSI_ULP_ISCSI_INI_MODE	0x10
	u32 ulp_mode;
	u32 etx_base;
	u32 etx_count;
	u32 sq_base;
	u32 sq_count;
	u32 rq_base;
	u32 rq_count;
	u32 dq_base;
	u32 dq_count;
	u32 lro_base;
	u32 lro_count;
	u32 icd_base;
	u32 icd_count;
};

struct be_ulp_chain_icd {
	u32 chain_base;
	u32 chain_count;
};

struct be_fw_cfg {
	struct be_cmd_req_hdr hdr;
	u32 be_config_number;
	u32 asic_revision;
	u32 phys_port;
#define BEISCSI_FUNC_ISCSI_INI_MODE	0x10
#define BEISCSI_FUNC_DUA_MODE	0x800
	u32 function_mode;
	struct be_ulp_fw_cfg ulp[2];
	u32 function_caps;
	u32 cqid_base;
	u32 cqid_count;
	u32 eqid_base;
	u32 eqid_count;
	struct be_ulp_chain_icd chain_icd[2];
} __packed;

struct be_cmd_get_all_if_id_req {
	struct be_cmd_req_hdr hdr;
	u32 if_count;
	u32 if_hndl_list[1];
} __packed;

struct be_cmd_get_port_name {
	union {
		struct be_cmd_req_hdr req_hdr;
		struct be_cmd_resp_hdr resp_hdr;
	} h;
	union {
		struct {
			u32 reserved;
		} req;
		struct {
			u32 port_names;
		} resp;
	} p;
} __packed;

#define ISCSI_OPCODE_SCSI_DATA_OUT		5
#define OPCODE_COMMON_NTWK_LINK_STATUS_QUERY 5
#define OPCODE_COMMON_MODIFY_EQ_DELAY		41
#define OPCODE_COMMON_ISCSI_CLEANUP		59
#define	OPCODE_COMMON_TCP_UPLOAD		56
#define OPCODE_COMMON_ISCSI_TCP_CONNECT_AND_OFFLOAD 70
#define OPCODE_COMMON_ISCSI_ERROR_RECOVERY_INVALIDATE_COMMANDS 1
#define OPCODE_ISCSI_INI_CFG_GET_HBA_NAME	6
#define OPCODE_ISCSI_INI_CFG_SET_HBA_NAME	7
#define OPCODE_ISCSI_INI_SESSION_GET_A_SESSION  14
#define OPCODE_ISCSI_INI_SESSION_LOGOUT_TARGET	 24
#define OPCODE_ISCSI_INI_DRIVER_REOPEN_ALL_SESSIONS 36
#define OPCODE_ISCSI_INI_DRIVER_OFFLOAD_SESSION 41
#define OPCODE_ISCSI_INI_DRIVER_INVALIDATE_CONNECTION 42
#define OPCODE_ISCSI_INI_BOOT_GET_BOOT_TARGET	52
#define OPCODE_COMMON_WRITE_FLASH		96
#define OPCODE_COMMON_READ_FLASH		97

#define CMD_ISCSI_COMMAND_INVALIDATE		1

#define INI_WR_CMD			1	/* Initiator write command */
#define INI_TMF_CMD			2	/* Initiator TMF command */
#define INI_NOPOUT_CMD			3	/* Initiator; Send a NOP-OUT */
#define INI_RD_CMD			5	/* Initiator requesting to send
						 * a read command
						 */
#define TGT_CTX_UPDT_CMD		7	/* Target context update */
#define TGT_DM_CMD			11	/* Indicates that the bhs
						 * prepared by driver should not
						 * be touched.
						 */

/* Returns the number of items in the field array. */
#define BE_NUMBER_OF_FIELD(_type_, _field_)	\
	(sizeof_field(_type_, _field_)/sizeof((((_type_ *)0)->_field_[0])))\

/**
 * Different types of iSCSI completions to host driver for both initiator
 * and taget mode
 * of operation.
 */
#define SOL_CMD_COMPLETE		1	/* Solicited command completed
						 * normally
						 */
#define SOL_CMD_KILLED_DATA_DIGEST_ERR  2	/* Solicited command got
						 * invalidated internally due
						 * to Data Digest error
						 */
#define CXN_KILLED_PDU_SIZE_EXCEEDS_DSL 3	/* Connection got invalidated
						 * internally
						 * due to a received PDU
						 * size > DSL
						 */
#define CXN_KILLED_BURST_LEN_MISMATCH   4	/* Connection got invalidated
						 * internally due ti received
						 * PDU sequence size >
						 * FBL/MBL.
						 */
#define CXN_KILLED_AHS_RCVD		5	/* Connection got invalidated
						 * internally due to a received
						 * PDU Hdr that has
						 * AHS */
#define CXN_KILLED_HDR_DIGEST_ERR	6	/* Connection got invalidated
						 * internally due to Hdr Digest
						 * error
						 */
#define CXN_KILLED_UNKNOWN_HDR		7	/* Connection got invalidated
						 *  internally
						 * due to a bad opcode in the
						 * pdu hdr
						 */
#define CXN_KILLED_STALE_ITT_TTT_RCVD	8	/* Connection got invalidated
						 * internally due to a received
						 * ITT/TTT that does not belong
						 * to this Connection
						 */
#define CXN_KILLED_INVALID_ITT_TTT_RCVD 9	/* Connection got invalidated
						 * internally due to received
						 * ITT/TTT value > Max
						 * Supported ITTs/TTTs
						 */
#define CXN_KILLED_RST_RCVD		10	/* Connection got invalidated
						 * internally due to an
						 * incoming TCP RST
						 */
#define CXN_KILLED_TIMED_OUT		11	/* Connection got invalidated
						 * internally due to timeout on
						 * tcp segment 12 retransmit
						 * attempts failed
						 */
#define CXN_KILLED_RST_SENT		12	/* Connection got invalidated
						 * internally due to TCP RST
						 * sent by the Tx side
						 */
#define CXN_KILLED_FIN_RCVD		13	/* Connection got invalidated
						 * internally due to an
						 * incoming TCP FIN.
						 */
#define CXN_KILLED_BAD_UNSOL_PDU_RCVD	14	/* Connection got invalidated
						 * internally due to bad
						 * unsolicited PDU Unsolicited
						 * PDUs are PDUs with
						 * ITT=0xffffffff
						 */
#define CXN_KILLED_BAD_WRB_INDEX_ERROR	15	/* Connection got invalidated
						 * internally due to bad WRB
						 * index.
						 */
#define CXN_KILLED_OVER_RUN_RESIDUAL	16	/* Command got invalidated
						 * internally due to received
						 * command has residual
						 * over run bytes.
						 */
#define CXN_KILLED_UNDER_RUN_RESIDUAL	17	/* Command got invalidated
						 * internally due to received
						 * command has residual under
						 * run bytes.
						 */
#define CMD_KILLED_INVALID_STATSN_RCVD	18	/* Command got invalidated
						 * internally due to a received
						 * PDU has an invalid StatusSN
						 */
#define CMD_KILLED_INVALID_R2T_RCVD	19	/* Command got invalidated
						 * internally due to a received
						 * an R2T with some invalid
						 * fields in it
						 */
#define CMD_CXN_KILLED_LUN_INVALID	20	/* Command got invalidated
						 * internally due to received
						 * PDU has an invalid LUN.
						 */
#define CMD_CXN_KILLED_ICD_INVALID	21	/* Command got invalidated
						 * internally due to the
						 * corresponding ICD not in a
						 * valid state
						 */
#define CMD_CXN_KILLED_ITT_INVALID	22	/* Command got invalidated due
						 *  to received PDU has an
						 *  invalid ITT.
						 */
#define CMD_CXN_KILLED_SEQ_OUTOFORDER	23	/* Command got invalidated due
						 * to received sequence buffer
						 * offset is out of order.
						 */
#define CMD_CXN_KILLED_INVALID_DATASN_RCVD 24	/* Command got invalidated
						 * internally due to a
						 * received PDU has an invalid
						 * DataSN
						 */
#define CXN_INVALIDATE_NOTIFY		25	/* Connection invalidation
						 * completion notify.
						 */
#define CXN_INVALIDATE_INDEX_NOTIFY	26	/* Connection invalidation
						 * completion
						 * with data PDU index.
						 */
#define CMD_INVALIDATED_NOTIFY		27	/* Command invalidation
						 * completionnotifify.
						 */
#define UNSOL_HDR_NOTIFY		28	/* Unsolicited header notify.*/
#define UNSOL_DATA_NOTIFY		29	/* Unsolicited data notify.*/
#define UNSOL_DATA_DIGEST_ERROR_NOTIFY	30	/* Unsolicited data digest
						 * error notify.
						 */
#define DRIVERMSG_NOTIFY		31	/* TCP acknowledge based
						 * notification.
						 */
#define CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN 32 /* Connection got invalidated
						  * internally due to command
						  * and data are not on same
						  * connection.
						  */
#define SOL_CMD_KILLED_DIF_ERR		33	/* Solicited command got
						 *  invalidated internally due
						 *  to DIF error
						 */
#define CXN_KILLED_SYN_RCVD		34	/* Connection got invalidated
						 * internally due to incoming
						 * TCP SYN
						 */
#define CXN_KILLED_IMM_DATA_RCVD	35	/* Connection got invalidated
						 * internally due to an
						 * incoming Unsolicited PDU
						 * that has immediate data on
						 * the cxn
						 */

void be_wrb_hdr_prepare(struct be_mcc_wrb *wrb, u32 payload_len,
			bool embedded, u8 sge_cnt);

void be_cmd_hdr_prepare(struct be_cmd_req_hdr *req_hdr,
			u8 subsystem, u8 opcode, u32 cmd_len);
#endif /* !BEISCSI_CMDS_H */