/**
 * Copyright (C) 2005 - 2009 ServerEngines
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation.  The full GNU General
 * Public License is included in this distribution in the file called COPYING.
 *
 * Contact Information:
 * linux-drivers@serverengines.com
 *
 * ServerEngines
 * 209 N. Fair Oaks Ave
 * Sunnyvale, CA 94085
 */

#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 BladeEngine's MPU.
 */
struct be_sge {
        u32 pa_lo;
        u32 pa_hi;
        u32 len;
};

#define MCC_WRB_SGE_CNT_SHIFT 3 /* bits 3 - 7 of dword 0 */
#define MCC_WRB_SGE_CNT_MASK 0x1F       /* bits 3 - 7 of dword 0 */
struct be_mcc_wrb {
        u32 embedded;           /* dword 0 */
        u32 payload_length;     /* dword 1 */
        u32 tag0;               /* dword 2 */
        u32 tag1;               /* dword 3 */
        u32 rsvd;               /* dword 4 */
        union {
                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)

/* Completion Status */
#define MCC_STATUS_SUCCESS 0x0

#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 0         /* bits 0 - 15 */

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 ******************/
#define MPU_EP_SEMAPHORE_OFFSET 0xac
#define EP_SEMAPHORE_POST_STAGE_MASK 0x0000FFFF
#define EP_SEMAPHORE_POST_ERR_MASK 0x1
#define EP_SEMAPHORE_POST_ERR_SHIFT 31

/********** MCC door bell ************/
#define DB_MCCQ_OFFSET 0x140
#define DB_MCCQ_RING_ID_MASK 0x7FF              /* bits 0 - 10 */
/* Number of entries posted */
#define DB_MCCQ_NUM_POSTED_SHIFT 16             /* bits 16 - 29 */

/* MPU semphore POST stage values */
#define POST_STAGE_ARMFW_RDY            0xc000  /* FW is done with POST */

/**
 * 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
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;
        u8 port_duplex;
        u8 port_speed;
        u8 port_fault;
        u8 rsvd0[7];
        struct be_async_event_trailer 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_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

/**
 * 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_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 */
        u32 rsvd;               /* 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;
};

/**************************
 * 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 mac_addr {
        u16 size_of_struct;
        u8 addr[ETH_ALEN];
} __packed;

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

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

/******************** 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 be_cmd_req_cq_create {
        struct be_cmd_req_hdr hdr;
        u16 num_pages;
        u16 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 {
        struct be_cmd_req_hdr hdr;
        u16 num_pages;
        u16 rsvd0;
        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;
        u32 num_eq;
        struct {
                u32 eq_id;
                u32 phase;
                u32 delay_multiplier;
        } delay[8];
} __packed;

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

#define ETH_ALEN        6


struct be_cmd_req_get_mac_addr {
        struct be_cmd_req_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];
        u32 rsvd[23];
};

struct be_cmd_resp_get_mac_addr {
        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[6];
        u32 rsvd[23];
};

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 be_poll_mcc(struct be_ctrl_info *ctrl);
unsigned char mgmt_check_supported_fw(struct be_ctrl_info *ctrl);
int be_cmd_get_mac_addr(struct be_ctrl_info *ctrl, u8 *mac_addr);

/*ISCSI Functuions */
int be_cmd_fw_initialize(struct be_ctrl_info *ctrl);

struct be_mcc_wrb *wrb_from_mbox(struct be_dma_mem *mbox_mem);

int be_mbox_notify(struct be_ctrl_info *ctrl);

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);

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 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 be_defq_create_req {
        struct be_cmd_req_hdr hdr;
        u16 num_pages;
        u8 ulp_num;
        u8 rsvd0;
        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;
        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 rsvd0;
        struct phys_addr pages[8];
} __packed;

struct be_wrbq_create_resp {
        struct be_cmd_resp_hdr resp_hdr;
        u16 cid;
        u16 rsvd0;
} __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;


/**
 * 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            0x3FF   /* bits 0 - 9 */
#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 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 ip_address_format {
        u16 size_of_structure;
        u8 reserved;
        u8 ip_type;
        u8 ip_address[16];
        u32 rsvd0;
} __packed;

struct tcp_connect_and_offload_in {
        struct be_cmd_req_hdr hdr;
        struct ip_address_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_out {
        struct be_cmd_resp_hdr hdr;
        u32 connection_handle;
        u16 cid;
        u16 rsvd0;

} __packed;

struct be_mcc_wrb_context {
        struct MCC_WRB *wrb;
        int *users_final_status;
} __packed;

#define DB_DEF_PDU_RING_ID_MASK         0x3FF   /* bits 0 - 9 */
#define DB_DEF_PDU_CQPROC_MASK          0x3FFF  /* bits 0 - 9 */
#define DB_DEF_PDU_REARM_SHIFT          14
#define DB_DEF_PDU_EVENT_SHIFT          15
#define DB_DEF_PDU_CQPROC_SHIFT         16

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

struct tcp_upload_params_in {
        struct be_cmd_req_hdr hdr;
        u16 id;
        u16 upload_type;
        u32 reset_seq;
} __packed;

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

union tcp_upload_params {
        struct tcp_upload_params_in request;
        struct tcp_upload_params_out response;
} __packed;

struct be_ulp_fw_cfg {
        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_fw_cfg {
        struct be_cmd_req_hdr hdr;
        u32 be_config_number;
        u32 asic_revision;
        u32 phys_port;
        u32 function_mode;
        struct be_ulp_fw_cfg ulp[2];
        u32 function_caps;
} __packed;

#define CMD_ISCSI_COMMAND_INVALIDATE  1
#define ISCSI_OPCODE_SCSI_DATA_OUT      5
#define OPCODE_COMMON_ISCSI_TCP_CONNECT_AND_OFFLOAD 70
#define OPCODE_ISCSI_INI_DRIVER_OFFLOAD_SESSION 41
#define OPCODE_COMMON_MODIFY_EQ_DELAY   41
#define OPCODE_COMMON_ISCSI_CLEANUP     59
#define OPCODE_COMMON_TCP_UPLOAD        56
#define OPCODE_COMMON_ISCSI_ERROR_RECOVERY_INVALIDATE_COMMANDS 1
/* --- CMD_ISCSI_INVALIDATE_CONNECTION_TYPE --- */
#define CMD_ISCSI_CONNECTION_INVALIDATE 1
#define CMD_ISCSI_CONNECTION_ISSUE_TCP_RST 2
#define OPCODE_ISCSI_INI_DRIVER_INVALIDATE_CONNECTION 42

#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_STS_CMD                     8       /* Target R2T and other BHS
                                                 * where only the status number
                                                 * need to be updated
                                                 */
#define TGT_DATAIN_CMD                  9       /* Target Data-Ins in response
                                                 * to read command
                                                 */
#define TGT_SOS_PDU                     10      /* Target:standalone status
                                                 * response
                                                 */
#define TGT_DM_CMD                      11      /* Indicates that the bhs
                                                 *  preparedby
                                                 * driver should not be touched
                                                 */
/* --- CMD_CHUTE_TYPE --- */
#define CMD_CONNECTION_CHUTE_0          1
#define CMD_CONNECTION_CHUTE_1          2
#define CMD_CONNECTION_CHUTE_2          3

#define EQ_MAJOR_CODE_COMPLETION        0

#define CMD_ISCSI_SESSION_DEL_CFG_FROM_FLASH 0
#define CMD_ISCSI_SESSION_SAVE_CFG_ON_FLASH 1

/* --- CONNECTION_UPLOAD_PARAMS --- */
/* These parameters are used to define the type of upload desired.  */
#define CONNECTION_UPLOAD_GRACEFUL      1       /* Graceful upload  */
#define CONNECTION_UPLOAD_ABORT_RESET   2       /* Abortive upload with
                                                 * reset
                                                 */
#define CONNECTION_UPLOAD_ABORT         3       /* Abortive upload without
                                                 * reset
                                                 */
#define CONNECTION_UPLOAD_ABORT_WITH_SEQ 4      /* Abortive upload with reset,
                                                 * sequence number by driver  */

/* Returns byte size of given field with a structure. */

/* Returns the number of items in the field array. */
#define BE_NUMBER_OF_FIELD(_type_, _field_)     \
        (FIELD_SIZEOF(_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 recieved 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 recieved
                                                 * 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 recieved
                                                 * ITT/TTT that does not belong
                                                 * to this Connection
                                                 */
#define CXN_KILLED_INVALID_ITT_TTT_RCVD 9       /* Connection got invalidated
                                                 * internally due to recieved
                                                 * 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 recived
                                                 * command has residual
                                                 * over run bytes.
                                                 */
#define CXN_KILLED_UNDER_RUN_RESIDUAL   17      /* Command got invalidated
                                                 * internally due to recived
                                                 * command has residual under
                                                 * run bytes.
                                                 */
#define CMD_KILLED_INVALID_STATSN_RCVD  18      /* Command got invalidated
                                                 * internally due to a recieved
                                                 * PDU has an invalid StatusSN
                                                 */
#define CMD_KILLED_INVALID_R2T_RCVD     19      /* Command got invalidated
                                                 * internally due to a recieved
                                                 * 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
                                                 * recieved 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, int payload_len,
                        bool embedded, u8 sge_cnt);

void be_cmd_hdr_prepare(struct be_cmd_req_hdr *req_hdr,
                        u8 subsystem, u8 opcode, int cmd_len);

#endif /* !BEISCSI_CMDS_H */