include/linux/qed/iscsi_common.h

   1 /* QLogic qed NIC Driver
   2  * Copyright (c) 2015-2017  QLogic Corporation
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and /or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32
  33 #ifndef __ISCSI_COMMON__
  34 #define __ISCSI_COMMON__
  35 /**********************/
  36 /* ISCSI FW CONSTANTS */
  37 /**********************/
  38
  39 /* iSCSI HSI constants */
  40 #define ISCSI_DEFAULT_MTU       (1500)
  41
  42 /* KWQ (kernel work queue) layer codes */
  43 #define ISCSI_SLOW_PATH_LAYER_CODE   (6)
  44
  45 /* iSCSI parameter defaults */
  46 #define ISCSI_DEFAULT_HEADER_DIGEST         (0)
  47 #define ISCSI_DEFAULT_DATA_DIGEST           (0)
  48 #define ISCSI_DEFAULT_INITIAL_R2T           (1)
  49 #define ISCSI_DEFAULT_IMMEDIATE_DATA        (1)
  50 #define ISCSI_DEFAULT_MAX_PDU_LENGTH        (0x2000)
  51 #define ISCSI_DEFAULT_FIRST_BURST_LENGTH    (0x10000)
  52 #define ISCSI_DEFAULT_MAX_BURST_LENGTH      (0x40000)
  53 #define ISCSI_DEFAULT_MAX_OUTSTANDING_R2T   (1)
  54
  55 /* iSCSI parameter limits */
  56 #define ISCSI_MIN_VAL_MAX_PDU_LENGTH        (0x200)
  57 #define ISCSI_MAX_VAL_MAX_PDU_LENGTH        (0xffffff)
  58 #define ISCSI_MIN_VAL_BURST_LENGTH          (0x200)
  59 #define ISCSI_MAX_VAL_BURST_LENGTH          (0xffffff)
  60 #define ISCSI_MIN_VAL_MAX_OUTSTANDING_R2T   (1)
  61 #define ISCSI_MAX_VAL_MAX_OUTSTANDING_R2T   (0xff)
  62
  63 #define ISCSI_AHS_CNTL_SIZE 4
  64
  65 #define ISCSI_WQE_NUM_SGES_SLOWIO           (0xf)
  66
  67 /* iSCSI reserved params */
  68 #define ISCSI_ITT_ALL_ONES      (0xffffffff)
  69 #define ISCSI_TTT_ALL_ONES      (0xffffffff)
  70
  71 #define ISCSI_OPTION_1_OFF_CHIP_TCP 1
  72 #define ISCSI_OPTION_2_ON_CHIP_TCP 2
  73
  74 #define ISCSI_INITIATOR_MODE 0
  75 #define ISCSI_TARGET_MODE 1
  76
  77 /* iSCSI request op codes */
  78 #define ISCSI_OPCODE_NOP_OUT            (0)
  79 #define ISCSI_OPCODE_SCSI_CMD           (1)
  80 #define ISCSI_OPCODE_TMF_REQUEST        (2)
  81 #define ISCSI_OPCODE_LOGIN_REQUEST      (3)
  82 #define ISCSI_OPCODE_TEXT_REQUEST       (4)
  83 #define ISCSI_OPCODE_DATA_OUT           (5)
  84 #define ISCSI_OPCODE_LOGOUT_REQUEST     (6)
  85
  86 /* iSCSI response/messages op codes */
  87 #define ISCSI_OPCODE_NOP_IN             (0x20)
  88 #define ISCSI_OPCODE_SCSI_RESPONSE      (0x21)
  89 #define ISCSI_OPCODE_TMF_RESPONSE       (0x22)
  90 #define ISCSI_OPCODE_LOGIN_RESPONSE     (0x23)
  91 #define ISCSI_OPCODE_TEXT_RESPONSE      (0x24)
  92 #define ISCSI_OPCODE_DATA_IN            (0x25)
  93 #define ISCSI_OPCODE_LOGOUT_RESPONSE    (0x26)
  94 #define ISCSI_OPCODE_R2T                (0x31)
  95 #define ISCSI_OPCODE_ASYNC_MSG          (0x32)
  96 #define ISCSI_OPCODE_REJECT             (0x3f)
  97
  98 /* iSCSI stages */
  99 #define ISCSI_STAGE_SECURITY_NEGOTIATION            (0)
 100 #define ISCSI_STAGE_LOGIN_OPERATIONAL_NEGOTIATION   (1)
 101 #define ISCSI_STAGE_FULL_FEATURE_PHASE              (3)
 102
 103 /* iSCSI CQE errors */
 104 #define CQE_ERROR_BITMAP_DATA_DIGEST          (0x08)
 105 #define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN  (0x10)
 106 #define CQE_ERROR_BITMAP_DATA_TRUNCATED       (0x20)
 107
 108 struct cqe_error_bitmap {
 109         u8 cqe_error_status_bits;
 110 #define CQE_ERROR_BITMAP_DIF_ERR_BITS_MASK         0x7
 111 #define CQE_ERROR_BITMAP_DIF_ERR_BITS_SHIFT        0
 112 #define CQE_ERROR_BITMAP_DATA_DIGEST_ERR_MASK      0x1
 113 #define CQE_ERROR_BITMAP_DATA_DIGEST_ERR_SHIFT     3
 114 #define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN_MASK  0x1
 115 #define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN_SHIFT 4
 116 #define CQE_ERROR_BITMAP_DATA_TRUNCATED_ERR_MASK   0x1
 117 #define CQE_ERROR_BITMAP_DATA_TRUNCATED_ERR_SHIFT  5
 118 #define CQE_ERROR_BITMAP_UNDER_RUN_ERR_MASK        0x1
 119 #define CQE_ERROR_BITMAP_UNDER_RUN_ERR_SHIFT       6
 120 #define CQE_ERROR_BITMAP_RESERVED2_MASK            0x1
 121 #define CQE_ERROR_BITMAP_RESERVED2_SHIFT           7
 122 };
 123
 124 union cqe_error_status {
 125         u8 error_status;
 126         struct cqe_error_bitmap error_bits;
 127 };
 128
 129 struct data_hdr {
 130         __le32 data[12];
 131 };
 132
 133 struct iscsi_async_msg_hdr {
 134         __le16 reserved0;
 135         u8 flags_attr;
 136 #define ISCSI_ASYNC_MSG_HDR_RSRV_MASK           0x7F
 137 #define ISCSI_ASYNC_MSG_HDR_RSRV_SHIFT          0
 138 #define ISCSI_ASYNC_MSG_HDR_CONST1_MASK         0x1
 139 #define ISCSI_ASYNC_MSG_HDR_CONST1_SHIFT        7
 140         u8 opcode;
 141         __le32 hdr_second_dword;
 142 #define ISCSI_ASYNC_MSG_HDR_DATA_SEG_LEN_MASK   0xFFFFFF
 143 #define ISCSI_ASYNC_MSG_HDR_DATA_SEG_LEN_SHIFT  0
 144 #define ISCSI_ASYNC_MSG_HDR_TOTAL_AHS_LEN_MASK  0xFF
 145 #define ISCSI_ASYNC_MSG_HDR_TOTAL_AHS_LEN_SHIFT 24
 146         struct regpair lun;
 147         __le32 all_ones;
 148         __le32 reserved1;
 149         __le32 stat_sn;
 150         __le32 exp_cmd_sn;
 151         __le32 max_cmd_sn;
 152         __le16 param1_rsrv;
 153         u8 async_vcode;
 154         u8 async_event;
 155         __le16 param3_rsrv;
 156         __le16 param2_rsrv;
 157         __le32 reserved7;
 158 };
 159
 160 struct iscsi_cmd_hdr {
 161         __le16 reserved1;
 162         u8 flags_attr;
 163 #define ISCSI_CMD_HDR_ATTR_MASK         0x7
 164 #define ISCSI_CMD_HDR_ATTR_SHIFT        0
 165 #define ISCSI_CMD_HDR_RSRV_MASK         0x3
 166 #define ISCSI_CMD_HDR_RSRV_SHIFT        3
 167 #define ISCSI_CMD_HDR_WRITE_MASK        0x1
 168 #define ISCSI_CMD_HDR_WRITE_SHIFT       5
 169 #define ISCSI_CMD_HDR_READ_MASK         0x1
 170 #define ISCSI_CMD_HDR_READ_SHIFT        6
 171 #define ISCSI_CMD_HDR_FINAL_MASK        0x1
 172 #define ISCSI_CMD_HDR_FINAL_SHIFT       7
 173         u8 hdr_first_byte;
 174 #define ISCSI_CMD_HDR_OPCODE_MASK       0x3F
 175 #define ISCSI_CMD_HDR_OPCODE_SHIFT      0
 176 #define ISCSI_CMD_HDR_IMM_MASK          0x1
 177 #define ISCSI_CMD_HDR_IMM_SHIFT         6
 178 #define ISCSI_CMD_HDR_RSRV1_MASK        0x1
 179 #define ISCSI_CMD_HDR_RSRV1_SHIFT       7
 180         __le32 hdr_second_dword;
 181 #define ISCSI_CMD_HDR_DATA_SEG_LEN_MASK   0xFFFFFF
 182 #define ISCSI_CMD_HDR_DATA_SEG_LEN_SHIFT  0
 183 #define ISCSI_CMD_HDR_TOTAL_AHS_LEN_MASK  0xFF
 184 #define ISCSI_CMD_HDR_TOTAL_AHS_LEN_SHIFT 24
 185         struct regpair lun;
 186         __le32 itt;
 187         __le32 expected_transfer_length;
 188         __le32 cmd_sn;
 189         __le32 exp_stat_sn;
 190         __le32 cdb[4];
 191 };
 192
 193 struct iscsi_common_hdr {
 194         u8 hdr_status;
 195         u8 hdr_response;
 196         u8 hdr_flags;
 197         u8 hdr_first_byte;
 198 #define ISCSI_COMMON_HDR_OPCODE_MASK         0x3F
 199 #define ISCSI_COMMON_HDR_OPCODE_SHIFT        0
 200 #define ISCSI_COMMON_HDR_IMM_MASK            0x1
 201 #define ISCSI_COMMON_HDR_IMM_SHIFT           6
 202 #define ISCSI_COMMON_HDR_RSRV_MASK           0x1
 203 #define ISCSI_COMMON_HDR_RSRV_SHIFT          7
 204         __le32 hdr_second_dword;
 205 #define ISCSI_COMMON_HDR_DATA_SEG_LEN_MASK   0xFFFFFF
 206 #define ISCSI_COMMON_HDR_DATA_SEG_LEN_SHIFT  0
 207 #define ISCSI_COMMON_HDR_TOTAL_AHS_LEN_MASK  0xFF
 208 #define ISCSI_COMMON_HDR_TOTAL_AHS_LEN_SHIFT 24
 209         struct regpair lun_reserved;
 210         __le32 itt;
 211         __le32 ttt;
 212         __le32 cmdstat_sn;
 213         __le32 exp_statcmd_sn;
 214         __le32 max_cmd_sn;
 215         __le32 data[3];
 216 };
 217
 218 struct iscsi_conn_offload_params {
 219         struct regpair sq_pbl_addr;
 220         struct regpair r2tq_pbl_addr;
 221         struct regpair xhq_pbl_addr;
 222         struct regpair uhq_pbl_addr;
 223         __le32 initial_ack;
 224         __le16 physical_q0;
 225         __le16 physical_q1;
 226         u8 flags;
 227 #define ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B_MASK  0x1
 228 #define ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B_SHIFT 0
 229 #define ISCSI_CONN_OFFLOAD_PARAMS_TARGET_MODE_MASK     0x1
 230 #define ISCSI_CONN_OFFLOAD_PARAMS_TARGET_MODE_SHIFT    1
 231 #define ISCSI_CONN_OFFLOAD_PARAMS_RESTRICTED_MODE_MASK  0x1
 232 #define ISCSI_CONN_OFFLOAD_PARAMS_RESTRICTED_MODE_SHIFT 2
 233 #define ISCSI_CONN_OFFLOAD_PARAMS_RESERVED1_MASK        0x1F
 234 #define ISCSI_CONN_OFFLOAD_PARAMS_RESERVED1_SHIFT       3
 235         u8 pbl_page_size_log;
 236         u8 pbe_page_size_log;
 237         u8 default_cq;
 238         __le32 stat_sn;
 239 };
 240
 241 struct iscsi_slow_path_hdr {
 242         u8 op_code;
 243         u8 flags;
 244 #define ISCSI_SLOW_PATH_HDR_RESERVED0_MASK   0xF
 245 #define ISCSI_SLOW_PATH_HDR_RESERVED0_SHIFT  0
 246 #define ISCSI_SLOW_PATH_HDR_LAYER_CODE_MASK  0x7
 247 #define ISCSI_SLOW_PATH_HDR_LAYER_CODE_SHIFT 4
 248 #define ISCSI_SLOW_PATH_HDR_RESERVED1_MASK   0x1
 249 #define ISCSI_SLOW_PATH_HDR_RESERVED1_SHIFT  7
 250 };
 251
 252 struct iscsi_conn_update_ramrod_params {
 253         struct iscsi_slow_path_hdr hdr;
 254         __le16 conn_id;
 255         __le32 fw_cid;
 256         u8 flags;
 257 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_HD_EN_MASK           0x1
 258 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_HD_EN_SHIFT          0
 259 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DD_EN_MASK           0x1
 260 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DD_EN_SHIFT          1
 261 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_INITIAL_R2T_MASK     0x1
 262 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_INITIAL_R2T_SHIFT    2
 263 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_IMMEDIATE_DATA_MASK  0x1
 264 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_IMMEDIATE_DATA_SHIFT 3
 265 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_BLOCK_SIZE_MASK  0x1
 266 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_BLOCK_SIZE_SHIFT 4
 267 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_HOST_EN_MASK  0x1
 268 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_HOST_EN_SHIFT 5
 269 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_RESERVED1_MASK       0x3
 270 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_RESERVED1_SHIFT      6
 271         u8 reserved0[3];
 272         __le32 max_seq_size;
 273         __le32 max_send_pdu_length;
 274         __le32 max_recv_pdu_length;
 275         __le32 first_seq_length;
 276         __le32 exp_stat_sn;
 277 };
 278
 279 struct iscsi_ext_cdb_cmd_hdr {
 280         __le16 reserved1;
 281         u8 flags_attr;
 282 #define ISCSI_EXT_CDB_CMD_HDR_ATTR_MASK          0x7
 283 #define ISCSI_EXT_CDB_CMD_HDR_ATTR_SHIFT         0
 284 #define ISCSI_EXT_CDB_CMD_HDR_RSRV_MASK          0x3
 285 #define ISCSI_EXT_CDB_CMD_HDR_RSRV_SHIFT         3
 286 #define ISCSI_EXT_CDB_CMD_HDR_WRITE_MASK         0x1
 287 #define ISCSI_EXT_CDB_CMD_HDR_WRITE_SHIFT        5
 288 #define ISCSI_EXT_CDB_CMD_HDR_READ_MASK          0x1
 289 #define ISCSI_EXT_CDB_CMD_HDR_READ_SHIFT         6
 290 #define ISCSI_EXT_CDB_CMD_HDR_FINAL_MASK         0x1
 291 #define ISCSI_EXT_CDB_CMD_HDR_FINAL_SHIFT        7
 292         u8 opcode;
 293         __le32 hdr_second_dword;
 294 #define ISCSI_EXT_CDB_CMD_HDR_DATA_SEG_LEN_MASK  0xFFFFFF
 295 #define ISCSI_EXT_CDB_CMD_HDR_DATA_SEG_LEN_SHIFT 0
 296 #define ISCSI_EXT_CDB_CMD_HDR_CDB_SIZE_MASK      0xFF
 297 #define ISCSI_EXT_CDB_CMD_HDR_CDB_SIZE_SHIFT     24
 298         struct regpair lun;
 299         __le32 itt;
 300         __le32 expected_transfer_length;
 301         __le32 cmd_sn;
 302         __le32 exp_stat_sn;
 303         struct scsi_sge cdb_sge;
 304 };
 305
 306 struct iscsi_login_req_hdr {
 307         u8 version_min;
 308         u8 version_max;
 309         u8 flags_attr;
 310 #define ISCSI_LOGIN_REQ_HDR_NSG_MASK            0x3
 311 #define ISCSI_LOGIN_REQ_HDR_NSG_SHIFT           0
 312 #define ISCSI_LOGIN_REQ_HDR_CSG_MASK            0x3
 313 #define ISCSI_LOGIN_REQ_HDR_CSG_SHIFT           2
 314 #define ISCSI_LOGIN_REQ_HDR_RSRV_MASK           0x3
 315 #define ISCSI_LOGIN_REQ_HDR_RSRV_SHIFT          4
 316 #define ISCSI_LOGIN_REQ_HDR_C_MASK              0x1
 317 #define ISCSI_LOGIN_REQ_HDR_C_SHIFT             6
 318 #define ISCSI_LOGIN_REQ_HDR_T_MASK              0x1
 319 #define ISCSI_LOGIN_REQ_HDR_T_SHIFT             7
 320         u8 opcode;
 321         __le32 hdr_second_dword;
 322 #define ISCSI_LOGIN_REQ_HDR_DATA_SEG_LEN_MASK   0xFFFFFF
 323 #define ISCSI_LOGIN_REQ_HDR_DATA_SEG_LEN_SHIFT  0
 324 #define ISCSI_LOGIN_REQ_HDR_TOTAL_AHS_LEN_MASK  0xFF
 325 #define ISCSI_LOGIN_REQ_HDR_TOTAL_AHS_LEN_SHIFT 24
 326         __le32 isid_tabc;
 327         __le16 tsih;
 328         __le16 isid_d;
 329         __le32 itt;
 330         __le16 reserved1;
 331         __le16 cid;
 332         __le32 cmd_sn;
 333         __le32 exp_stat_sn;
 334         __le32 reserved2[4];
 335 };
 336
 337 struct iscsi_logout_req_hdr {
 338         __le16 reserved0;
 339         u8 reason_code;
 340         u8 opcode;
 341         __le32 reserved1;
 342         __le32 reserved2[2];
 343         __le32 itt;
 344         __le16 reserved3;
 345         __le16 cid;
 346         __le32 cmd_sn;
 347         __le32 exp_stat_sn;
 348         __le32 reserved4[4];
 349 };
 350
 351 struct iscsi_data_out_hdr {
 352         __le16 reserved1;
 353         u8 flags_attr;
 354 #define ISCSI_DATA_OUT_HDR_RSRV_MASK   0x7F
 355 #define ISCSI_DATA_OUT_HDR_RSRV_SHIFT  0
 356 #define ISCSI_DATA_OUT_HDR_FINAL_MASK  0x1
 357 #define ISCSI_DATA_OUT_HDR_FINAL_SHIFT 7
 358         u8 opcode;
 359         __le32 reserved2;
 360         struct regpair lun;
 361         __le32 itt;
 362         __le32 ttt;
 363         __le32 reserved3;
 364         __le32 exp_stat_sn;
 365         __le32 reserved4;
 366         __le32 data_sn;
 367         __le32 buffer_offset;
 368         __le32 reserved5;
 369 };
 370
 371 struct iscsi_data_in_hdr {
 372         u8 status_rsvd;
 373         u8 reserved1;
 374         u8 flags;
 375 #define ISCSI_DATA_IN_HDR_STATUS_MASK     0x1
 376 #define ISCSI_DATA_IN_HDR_STATUS_SHIFT    0
 377 #define ISCSI_DATA_IN_HDR_UNDERFLOW_MASK  0x1
 378 #define ISCSI_DATA_IN_HDR_UNDERFLOW_SHIFT 1
 379 #define ISCSI_DATA_IN_HDR_OVERFLOW_MASK   0x1
 380 #define ISCSI_DATA_IN_HDR_OVERFLOW_SHIFT  2
 381 #define ISCSI_DATA_IN_HDR_RSRV_MASK       0x7
 382 #define ISCSI_DATA_IN_HDR_RSRV_SHIFT      3
 383 #define ISCSI_DATA_IN_HDR_ACK_MASK        0x1
 384 #define ISCSI_DATA_IN_HDR_ACK_SHIFT       6
 385 #define ISCSI_DATA_IN_HDR_FINAL_MASK      0x1
 386 #define ISCSI_DATA_IN_HDR_FINAL_SHIFT     7
 387         u8 opcode;
 388         __le32 reserved2;
 389         struct regpair lun;
 390         __le32 itt;
 391         __le32 ttt;
 392         __le32 stat_sn;
 393         __le32 exp_cmd_sn;
 394         __le32 max_cmd_sn;
 395         __le32 data_sn;
 396         __le32 buffer_offset;
 397         __le32 residual_count;
 398 };
 399
 400 struct iscsi_r2t_hdr {
 401         u8 reserved0[3];
 402         u8 opcode;
 403         __le32 reserved2;
 404         struct regpair lun;
 405         __le32 itt;
 406         __le32 ttt;
 407         __le32 stat_sn;
 408         __le32 exp_cmd_sn;
 409         __le32 max_cmd_sn;
 410         __le32 r2t_sn;
 411         __le32 buffer_offset;
 412         __le32 desired_data_trns_len;
 413 };
 414
 415 struct iscsi_nop_out_hdr {
 416         __le16 reserved1;
 417         u8 flags_attr;
 418 #define ISCSI_NOP_OUT_HDR_RSRV_MASK    0x7F
 419 #define ISCSI_NOP_OUT_HDR_RSRV_SHIFT   0
 420 #define ISCSI_NOP_OUT_HDR_CONST1_MASK  0x1
 421 #define ISCSI_NOP_OUT_HDR_CONST1_SHIFT 7
 422         u8 opcode;
 423         __le32 reserved2;
 424         struct regpair lun;
 425         __le32 itt;
 426         __le32 ttt;
 427         __le32 cmd_sn;
 428         __le32 exp_stat_sn;
 429         __le32 reserved3;
 430         __le32 reserved4;
 431         __le32 reserved5;
 432         __le32 reserved6;
 433 };
 434
 435 struct iscsi_nop_in_hdr {
 436         __le16 reserved0;
 437         u8 flags_attr;
 438 #define ISCSI_NOP_IN_HDR_RSRV_MASK           0x7F
 439 #define ISCSI_NOP_IN_HDR_RSRV_SHIFT          0
 440 #define ISCSI_NOP_IN_HDR_CONST1_MASK         0x1
 441 #define ISCSI_NOP_IN_HDR_CONST1_SHIFT        7
 442         u8 opcode;
 443         __le32 hdr_second_dword;
 444 #define ISCSI_NOP_IN_HDR_DATA_SEG_LEN_MASK   0xFFFFFF
 445 #define ISCSI_NOP_IN_HDR_DATA_SEG_LEN_SHIFT  0
 446 #define ISCSI_NOP_IN_HDR_TOTAL_AHS_LEN_MASK  0xFF
 447 #define ISCSI_NOP_IN_HDR_TOTAL_AHS_LEN_SHIFT 24
 448         struct regpair lun;
 449         __le32 itt;
 450         __le32 ttt;
 451         __le32 stat_sn;
 452         __le32 exp_cmd_sn;
 453         __le32 max_cmd_sn;
 454         __le32 reserved5;
 455         __le32 reserved6;
 456         __le32 reserved7;
 457 };
 458
 459 struct iscsi_login_response_hdr {
 460         u8 version_active;
 461         u8 version_max;
 462         u8 flags_attr;
 463 #define ISCSI_LOGIN_RESPONSE_HDR_NSG_MASK            0x3
 464 #define ISCSI_LOGIN_RESPONSE_HDR_NSG_SHIFT           0
 465 #define ISCSI_LOGIN_RESPONSE_HDR_CSG_MASK            0x3
 466 #define ISCSI_LOGIN_RESPONSE_HDR_CSG_SHIFT           2
 467 #define ISCSI_LOGIN_RESPONSE_HDR_RSRV_MASK           0x3
 468 #define ISCSI_LOGIN_RESPONSE_HDR_RSRV_SHIFT          4
 469 #define ISCSI_LOGIN_RESPONSE_HDR_C_MASK              0x1
 470 #define ISCSI_LOGIN_RESPONSE_HDR_C_SHIFT             6
 471 #define ISCSI_LOGIN_RESPONSE_HDR_T_MASK              0x1
 472 #define ISCSI_LOGIN_RESPONSE_HDR_T_SHIFT             7
 473         u8 opcode;
 474         __le32 hdr_second_dword;
 475 #define ISCSI_LOGIN_RESPONSE_HDR_DATA_SEG_LEN_MASK   0xFFFFFF
 476 #define ISCSI_LOGIN_RESPONSE_HDR_DATA_SEG_LEN_SHIFT  0
 477 #define ISCSI_LOGIN_RESPONSE_HDR_TOTAL_AHS_LEN_MASK  0xFF
 478 #define ISCSI_LOGIN_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
 479         __le32 isid_tabc;
 480         __le16 tsih;
 481         __le16 isid_d;
 482         __le32 itt;
 483         __le32 reserved1;
 484         __le32 stat_sn;
 485         __le32 exp_cmd_sn;
 486         __le32 max_cmd_sn;
 487         __le16 reserved2;
 488         u8 status_detail;
 489         u8 status_class;
 490         __le32 reserved4[2];
 491 };
 492
 493 struct iscsi_logout_response_hdr {
 494         u8 reserved1;
 495         u8 response;
 496         u8 flags;
 497         u8 opcode;
 498         __le32 hdr_second_dword;
 499 #define ISCSI_LOGOUT_RESPONSE_HDR_DATA_SEG_LEN_MASK   0xFFFFFF
 500 #define ISCSI_LOGOUT_RESPONSE_HDR_DATA_SEG_LEN_SHIFT  0
 501 #define ISCSI_LOGOUT_RESPONSE_HDR_TOTAL_AHS_LEN_MASK  0xFF
 502 #define ISCSI_LOGOUT_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
 503         __le32 reserved2[2];
 504         __le32 itt;
 505         __le32 reserved3;
 506         __le32 stat_sn;
 507         __le32 exp_cmd_sn;
 508         __le32 max_cmd_sn;
 509         __le32 reserved4;
 510         __le16 time_2_retain;
 511         __le16 time_2_wait;
 512         __le32 reserved5[1];
 513 };
 514
 515 struct iscsi_text_request_hdr {
 516         __le16 reserved0;
 517         u8 flags_attr;
 518 #define ISCSI_TEXT_REQUEST_HDR_RSRV_MASK           0x3F
 519 #define ISCSI_TEXT_REQUEST_HDR_RSRV_SHIFT          0
 520 #define ISCSI_TEXT_REQUEST_HDR_C_MASK              0x1
 521 #define ISCSI_TEXT_REQUEST_HDR_C_SHIFT             6
 522 #define ISCSI_TEXT_REQUEST_HDR_F_MASK              0x1
 523 #define ISCSI_TEXT_REQUEST_HDR_F_SHIFT             7
 524         u8 opcode;
 525         __le32 hdr_second_dword;
 526 #define ISCSI_TEXT_REQUEST_HDR_DATA_SEG_LEN_MASK   0xFFFFFF
 527 #define ISCSI_TEXT_REQUEST_HDR_DATA_SEG_LEN_SHIFT  0
 528 #define ISCSI_TEXT_REQUEST_HDR_TOTAL_AHS_LEN_MASK  0xFF
 529 #define ISCSI_TEXT_REQUEST_HDR_TOTAL_AHS_LEN_SHIFT 24
 530         struct regpair lun;
 531         __le32 itt;
 532         __le32 ttt;
 533         __le32 cmd_sn;
 534         __le32 exp_stat_sn;
 535         __le32 reserved4[4];
 536 };
 537
 538 struct iscsi_text_response_hdr {
 539         __le16 reserved1;
 540         u8 flags;
 541 #define ISCSI_TEXT_RESPONSE_HDR_RSRV_MASK           0x3F
 542 #define ISCSI_TEXT_RESPONSE_HDR_RSRV_SHIFT          0
 543 #define ISCSI_TEXT_RESPONSE_HDR_C_MASK              0x1
 544 #define ISCSI_TEXT_RESPONSE_HDR_C_SHIFT             6
 545 #define ISCSI_TEXT_RESPONSE_HDR_F_MASK              0x1
 546 #define ISCSI_TEXT_RESPONSE_HDR_F_SHIFT             7
 547         u8 opcode;
 548         __le32 hdr_second_dword;
 549 #define ISCSI_TEXT_RESPONSE_HDR_DATA_SEG_LEN_MASK   0xFFFFFF
 550 #define ISCSI_TEXT_RESPONSE_HDR_DATA_SEG_LEN_SHIFT  0
 551 #define ISCSI_TEXT_RESPONSE_HDR_TOTAL_AHS_LEN_MASK  0xFF
 552 #define ISCSI_TEXT_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
 553         struct regpair lun;
 554         __le32 itt;
 555         __le32 ttt;
 556         __le32 stat_sn;
 557         __le32 exp_cmd_sn;
 558         __le32 max_cmd_sn;
 559         __le32 reserved4[3];
 560 };
 561
 562 struct iscsi_tmf_request_hdr {
 563         __le16 reserved0;
 564         u8 function;
 565         u8 opcode;
 566         __le32 hdr_second_dword;
 567 #define ISCSI_TMF_REQUEST_HDR_DATA_SEG_LEN_MASK   0xFFFFFF
 568 #define ISCSI_TMF_REQUEST_HDR_DATA_SEG_LEN_SHIFT  0
 569 #define ISCSI_TMF_REQUEST_HDR_TOTAL_AHS_LEN_MASK  0xFF
 570 #define ISCSI_TMF_REQUEST_HDR_TOTAL_AHS_LEN_SHIFT 24
 571         struct regpair lun;
 572         __le32 itt;
 573         __le32 rtt;
 574         __le32 cmd_sn;
 575         __le32 exp_stat_sn;
 576         __le32 ref_cmd_sn;
 577         __le32 exp_data_sn;
 578         __le32 reserved4[2];
 579 };
 580
 581 struct iscsi_tmf_response_hdr {
 582         u8 reserved2;
 583         u8 hdr_response;
 584         u8 hdr_flags;
 585         u8 opcode;
 586         __le32 hdr_second_dword;
 587 #define ISCSI_TMF_RESPONSE_HDR_DATA_SEG_LEN_MASK   0xFFFFFF
 588 #define ISCSI_TMF_RESPONSE_HDR_DATA_SEG_LEN_SHIFT  0
 589 #define ISCSI_TMF_RESPONSE_HDR_TOTAL_AHS_LEN_MASK  0xFF
 590 #define ISCSI_TMF_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
 591         struct regpair reserved0;
 592         __le32 itt;
 593         __le32 reserved1;
 594         __le32 stat_sn;
 595         __le32 exp_cmd_sn;
 596         __le32 max_cmd_sn;
 597         __le32 reserved4[3];
 598 };
 599
 600 struct iscsi_response_hdr {
 601         u8 hdr_status;
 602         u8 hdr_response;
 603         u8 hdr_flags;
 604         u8 opcode;
 605         __le32 hdr_second_dword;
 606 #define ISCSI_RESPONSE_HDR_DATA_SEG_LEN_MASK   0xFFFFFF
 607 #define ISCSI_RESPONSE_HDR_DATA_SEG_LEN_SHIFT  0
 608 #define ISCSI_RESPONSE_HDR_TOTAL_AHS_LEN_MASK  0xFF
 609 #define ISCSI_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24
 610         struct regpair lun;
 611         __le32 itt;
 612         __le32 snack_tag;
 613         __le32 stat_sn;
 614         __le32 exp_cmd_sn;
 615         __le32 max_cmd_sn;
 616         __le32 exp_data_sn;
 617         __le32 bi_residual_count;
 618         __le32 residual_count;
 619 };
 620
 621 struct iscsi_reject_hdr {
 622         u8 reserved4;
 623         u8 hdr_reason;
 624         u8 hdr_flags;
 625         u8 opcode;
 626         __le32 hdr_second_dword;
 627 #define ISCSI_REJECT_HDR_DATA_SEG_LEN_MASK   0xFFFFFF
 628 #define ISCSI_REJECT_HDR_DATA_SEG_LEN_SHIFT  0
 629 #define ISCSI_REJECT_HDR_TOTAL_AHS_LEN_MASK  0xFF
 630 #define ISCSI_REJECT_HDR_TOTAL_AHS_LEN_SHIFT 24
 631         struct regpair reserved0;
 632         __le32 all_ones;
 633         __le32 reserved2;
 634         __le32 stat_sn;
 635         __le32 exp_cmd_sn;
 636         __le32 max_cmd_sn;
 637         __le32 data_sn;
 638         __le32 reserved3[2];
 639 };
 640
 641 union iscsi_task_hdr {
 642         struct iscsi_common_hdr common;
 643         struct data_hdr data;
 644         struct iscsi_cmd_hdr cmd;
 645         struct iscsi_ext_cdb_cmd_hdr ext_cdb_cmd;
 646         struct iscsi_login_req_hdr login_req;
 647         struct iscsi_logout_req_hdr logout_req;
 648         struct iscsi_data_out_hdr data_out;
 649         struct iscsi_data_in_hdr data_in;
 650         struct iscsi_r2t_hdr r2t;
 651         struct iscsi_nop_out_hdr nop_out;
 652         struct iscsi_nop_in_hdr nop_in;
 653         struct iscsi_login_response_hdr login_response;
 654         struct iscsi_logout_response_hdr logout_response;
 655         struct iscsi_text_request_hdr text_request;
 656         struct iscsi_text_response_hdr text_response;
 657         struct iscsi_tmf_request_hdr tmf_request;
 658         struct iscsi_tmf_response_hdr tmf_response;
 659         struct iscsi_response_hdr response;
 660         struct iscsi_reject_hdr reject;
 661         struct iscsi_async_msg_hdr async_msg;
 662 };
 663
 664 struct iscsi_cqe_common {
 665         __le16 conn_id;
 666         u8 cqe_type;
 667         union cqe_error_status error_bitmap;
 668         __le32 reserved[3];
 669         union iscsi_task_hdr iscsi_hdr;
 670 };
 671
 672 struct iscsi_cqe_solicited {
 673         __le16 conn_id;
 674         u8 cqe_type;
 675         union cqe_error_status error_bitmap;
 676         __le16 itid;
 677         u8 task_type;
 678         u8 fw_dbg_field;
 679         u8 caused_conn_err;
 680         u8 reserved0[3];
 681         __le32 reserved1[1];
 682         union iscsi_task_hdr iscsi_hdr;
 683 };
 684
 685 struct iscsi_cqe_unsolicited {
 686         __le16 conn_id;
 687         u8 cqe_type;
 688         union cqe_error_status error_bitmap;
 689         __le16 reserved0;
 690         u8 reserved1;
 691         u8 unsol_cqe_type;
 692         struct regpair rqe_opaque;
 693         union iscsi_task_hdr iscsi_hdr;
 694 };
 695
 696 union iscsi_cqe {
 697         struct iscsi_cqe_common cqe_common;
 698         struct iscsi_cqe_solicited cqe_solicited;
 699         struct iscsi_cqe_unsolicited cqe_unsolicited;
 700 };
 701
 702 enum iscsi_cqes_type {
 703         ISCSI_CQE_TYPE_SOLICITED = 1,
 704         ISCSI_CQE_TYPE_UNSOLICITED,
 705         ISCSI_CQE_TYPE_SOLICITED_WITH_SENSE,
 706         ISCSI_CQE_TYPE_TASK_CLEANUP,
 707         ISCSI_CQE_TYPE_DUMMY,
 708         MAX_ISCSI_CQES_TYPE
 709 };
 710
 711 enum iscsi_cqe_unsolicited_type {
 712         ISCSI_CQE_UNSOLICITED_NONE,
 713         ISCSI_CQE_UNSOLICITED_SINGLE,
 714         ISCSI_CQE_UNSOLICITED_FIRST,
 715         ISCSI_CQE_UNSOLICITED_MIDDLE,
 716         ISCSI_CQE_UNSOLICITED_LAST,
 717         MAX_ISCSI_CQE_UNSOLICITED_TYPE
 718 };
 719
 720
 721 struct iscsi_debug_modes {
 722         u8 flags;
 723 #define ISCSI_DEBUG_MODES_ASSERT_IF_RX_CONN_ERROR_MASK         0x1
 724 #define ISCSI_DEBUG_MODES_ASSERT_IF_RX_CONN_ERROR_SHIFT        0
 725 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_RESET_MASK            0x1
 726 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_RESET_SHIFT           1
 727 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_FIN_MASK              0x1
 728 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_FIN_SHIFT             2
 729 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_CLEANUP_MASK          0x1
 730 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_CLEANUP_SHIFT         3
 731 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_REJECT_OR_ASYNC_MASK  0x1
 732 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_REJECT_OR_ASYNC_SHIFT 4
 733 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_NOP_MASK              0x1
 734 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_NOP_SHIFT             5
 735 #define ISCSI_DEBUG_MODES_ASSERT_IF_DATA_DIGEST_ERROR_MASK     0x1
 736 #define ISCSI_DEBUG_MODES_ASSERT_IF_DATA_DIGEST_ERROR_SHIFT    6
 737 #define ISCSI_DEBUG_MODES_ASSERT_IF_DIF_ERROR_MASK             0x1
 738 #define ISCSI_DEBUG_MODES_ASSERT_IF_DIF_ERROR_SHIFT            7
 739 };
 740
 741 struct iscsi_dif_flags {
 742         u8 flags;
 743 #define ISCSI_DIF_FLAGS_PROT_INTERVAL_SIZE_LOG_MASK  0xF
 744 #define ISCSI_DIF_FLAGS_PROT_INTERVAL_SIZE_LOG_SHIFT 0
 745 #define ISCSI_DIF_FLAGS_DIF_TO_PEER_MASK             0x1
 746 #define ISCSI_DIF_FLAGS_DIF_TO_PEER_SHIFT            4
 747 #define ISCSI_DIF_FLAGS_HOST_INTERFACE_MASK          0x7
 748 #define ISCSI_DIF_FLAGS_HOST_INTERFACE_SHIFT         5
 749 };
 750
 751 enum iscsi_eqe_opcode {
 752         ISCSI_EVENT_TYPE_INIT_FUNC = 0,
 753         ISCSI_EVENT_TYPE_DESTROY_FUNC,
 754         ISCSI_EVENT_TYPE_OFFLOAD_CONN,
 755         ISCSI_EVENT_TYPE_UPDATE_CONN,
 756         ISCSI_EVENT_TYPE_CLEAR_SQ,
 757         ISCSI_EVENT_TYPE_TERMINATE_CONN,
 758         ISCSI_EVENT_TYPE_MAC_UPDATE_CONN,
 759         ISCSI_EVENT_TYPE_ASYN_CONNECT_COMPLETE,
 760         ISCSI_EVENT_TYPE_ASYN_TERMINATE_DONE,
 761         RESERVED9,
 762         ISCSI_EVENT_TYPE_START_OF_ERROR_TYPES = 10,
 763         ISCSI_EVENT_TYPE_ASYN_ABORT_RCVD,
 764         ISCSI_EVENT_TYPE_ASYN_CLOSE_RCVD,
 765         ISCSI_EVENT_TYPE_ASYN_SYN_RCVD,
 766         ISCSI_EVENT_TYPE_ASYN_MAX_RT_TIME,
 767         ISCSI_EVENT_TYPE_ASYN_MAX_RT_CNT,
 768         ISCSI_EVENT_TYPE_ASYN_MAX_KA_PROBES_CNT,
 769         ISCSI_EVENT_TYPE_ASYN_FIN_WAIT2,
 770         ISCSI_EVENT_TYPE_ISCSI_CONN_ERROR,
 771         ISCSI_EVENT_TYPE_TCP_CONN_ERROR,
 772         MAX_ISCSI_EQE_OPCODE
 773 };
 774
 775 enum iscsi_error_types {
 776         ISCSI_STATUS_NONE = 0,
 777         ISCSI_CQE_ERROR_UNSOLICITED_RCV_ON_INVALID_CONN = 1,
 778         ISCSI_CONN_ERROR_TASK_CID_MISMATCH,
 779         ISCSI_CONN_ERROR_TASK_NOT_VALID,
 780         ISCSI_CONN_ERROR_RQ_RING_IS_FULL,
 781         ISCSI_CONN_ERROR_CMDQ_RING_IS_FULL,
 782         ISCSI_CONN_ERROR_HQE_CACHING_FAILED,
 783         ISCSI_CONN_ERROR_HEADER_DIGEST_ERROR,
 784         ISCSI_CONN_ERROR_LOCAL_COMPLETION_ERROR,
 785         ISCSI_CONN_ERROR_DATA_OVERRUN,
 786         ISCSI_CONN_ERROR_OUT_OF_SGES_ERROR,
 787         ISCSI_CONN_ERROR_IP_OPTIONS_ERROR,
 788         ISCSI_CONN_ERROR_PRS_ERRORS,
 789         ISCSI_CONN_ERROR_CONNECT_INVALID_TCP_OPTION,
 790         ISCSI_CONN_ERROR_TCP_IP_FRAGMENT_ERROR,
 791         ISCSI_CONN_ERROR_PROTOCOL_ERR_AHS_LEN,
 792         ISCSI_CONN_ERROR_PROTOCOL_ERR_AHS_TYPE,
 793         ISCSI_CONN_ERROR_PROTOCOL_ERR_ITT_OUT_OF_RANGE,
 794         ISCSI_CONN_ERROR_PROTOCOL_ERR_TTT_OUT_OF_RANGE,
 795         ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SEG_LEN_EXCEEDS_PDU_SIZE,
 796         ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_OPCODE,
 797         ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_OPCODE_BEFORE_UPDATE,
 798         ISCSI_CONN_ERROR_UNVALID_NOPIN_DSL,
 799         ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_CARRIES_NO_DATA,
 800         ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SN,
 801         ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_IN_TTT,
 802         ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_OUT_ITT,
 803         ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_TTT,
 804         ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_BUFFER_OFFSET,
 805         ISCSI_CONN_ERROR_PROTOCOL_ERR_BUFFER_OFFSET_OOO,
 806         ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_SN,
 807         ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_0,
 808         ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_1,
 809         ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_2,
 810         ISCSI_CONN_ERROR_PROTOCOL_ERR_LUN,
 811         ISCSI_CONN_ERROR_PROTOCOL_ERR_F_BIT_ZERO,
 812         ISCSI_CONN_ERROR_PROTOCOL_ERR_F_BIT_ZERO_S_BIT_ONE,
 813         ISCSI_CONN_ERROR_PROTOCOL_ERR_EXP_STAT_SN,
 814         ISCSI_CONN_ERROR_PROTOCOL_ERR_DSL_NOT_ZERO,
 815         ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_DSL,
 816         ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SEG_LEN_TOO_BIG,
 817         ISCSI_CONN_ERROR_PROTOCOL_ERR_OUTSTANDING_R2T_COUNT,
 818         ISCSI_CONN_ERROR_PROTOCOL_ERR_DIF_TX,
 819         ISCSI_CONN_ERROR_SENSE_DATA_LENGTH,
 820         ISCSI_CONN_ERROR_DATA_PLACEMENT_ERROR,
 821         ISCSI_CONN_ERROR_INVALID_ITT,
 822         ISCSI_ERROR_UNKNOWN,
 823         MAX_ISCSI_ERROR_TYPES
 824 };
 825
 826
 827 enum iscsi_ramrod_cmd_id {
 828         ISCSI_RAMROD_CMD_ID_UNUSED = 0,
 829         ISCSI_RAMROD_CMD_ID_INIT_FUNC = 1,
 830         ISCSI_RAMROD_CMD_ID_DESTROY_FUNC = 2,
 831         ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN = 3,
 832         ISCSI_RAMROD_CMD_ID_UPDATE_CONN = 4,
 833         ISCSI_RAMROD_CMD_ID_TERMINATION_CONN = 5,
 834         ISCSI_RAMROD_CMD_ID_CLEAR_SQ = 6,
 835         ISCSI_RAMROD_CMD_ID_MAC_UPDATE = 7,
 836         MAX_ISCSI_RAMROD_CMD_ID
 837 };
 838
 839 struct iscsi_reg1 {
 840         __le32 reg1_map;
 841 #define ISCSI_REG1_NUM_SGES_MASK   0xF
 842 #define ISCSI_REG1_NUM_SGES_SHIFT  0
 843 #define ISCSI_REG1_RESERVED1_MASK  0xFFFFFFF
 844 #define ISCSI_REG1_RESERVED1_SHIFT 4
 845 };
 846
 847 union iscsi_seq_num {
 848         __le16 data_sn;
 849         __le16 r2t_sn;
 850 };
 851
 852 struct iscsi_spe_conn_mac_update {
 853         struct iscsi_slow_path_hdr hdr;
 854         __le16 conn_id;
 855         __le32 fw_cid;
 856         __le16 remote_mac_addr_lo;
 857         __le16 remote_mac_addr_mid;
 858         __le16 remote_mac_addr_hi;
 859         u8 reserved0[2];
 860 };
 861
 862 struct iscsi_spe_conn_offload {
 863         struct iscsi_slow_path_hdr hdr;
 864         __le16 conn_id;
 865         __le32 fw_cid;
 866         struct iscsi_conn_offload_params iscsi;
 867         struct tcp_offload_params tcp;
 868 };
 869
 870 struct iscsi_spe_conn_offload_option2 {
 871         struct iscsi_slow_path_hdr hdr;
 872         __le16 conn_id;
 873         __le32 fw_cid;
 874         struct iscsi_conn_offload_params iscsi;
 875         struct tcp_offload_params_opt2 tcp;
 876 };
 877
 878 struct iscsi_spe_conn_termination {
 879         struct iscsi_slow_path_hdr hdr;
 880         __le16 conn_id;
 881         __le32 fw_cid;
 882         u8 abortive;
 883         u8 reserved0[7];
 884         struct regpair queue_cnts_addr;
 885         struct regpair query_params_addr;
 886 };
 887
 888 struct iscsi_spe_func_dstry {
 889         struct iscsi_slow_path_hdr hdr;
 890         __le16 reserved0;
 891         __le32 reserved1;
 892 };
 893
 894 struct iscsi_spe_func_init {
 895         struct iscsi_slow_path_hdr hdr;
 896         __le16 half_way_close_timeout;
 897         u8 num_sq_pages_in_ring;
 898         u8 num_r2tq_pages_in_ring;
 899         u8 num_uhq_pages_in_ring;
 900         u8 ll2_rx_queue_id;
 901         u8 ooo_enable;
 902         struct iscsi_debug_modes debug_mode;
 903         __le16 reserved1;
 904         __le32 reserved2;
 905         __le32 reserved3;
 906         __le32 reserved4;
 907         struct scsi_init_func_params func_params;
 908         struct scsi_init_func_queues q_params;
 909 };
 910
 911 struct ystorm_iscsi_task_state {
 912         struct scsi_cached_sges data_desc;
 913         struct scsi_sgl_params sgl_params;
 914         __le32 exp_r2t_sn;
 915         __le32 buffer_offset;
 916         union iscsi_seq_num seq_num;
 917         struct iscsi_dif_flags dif_flags;
 918         u8 flags;
 919 #define YSTORM_ISCSI_TASK_STATE_LOCAL_COMP_MASK  0x1
 920 #define YSTORM_ISCSI_TASK_STATE_LOCAL_COMP_SHIFT 0
 921 #define YSTORM_ISCSI_TASK_STATE_SLOW_IO_MASK     0x1
 922 #define YSTORM_ISCSI_TASK_STATE_SLOW_IO_SHIFT    1
 923 #define YSTORM_ISCSI_TASK_STATE_RESERVED0_MASK   0x3F
 924 #define YSTORM_ISCSI_TASK_STATE_RESERVED0_SHIFT  2
 925 };
 926
 927 struct ystorm_iscsi_task_rxmit_opt {
 928         __le32 fast_rxmit_sge_offset;
 929         __le32 scan_start_buffer_offset;
 930         __le32 fast_rxmit_buffer_offset;
 931         u8 scan_start_sgl_index;
 932         u8 fast_rxmit_sgl_index;
 933         __le16 reserved;
 934 };
 935
 936 struct ystorm_iscsi_task_st_ctx {
 937         struct ystorm_iscsi_task_state state;
 938         struct ystorm_iscsi_task_rxmit_opt rxmit_opt;
 939         union iscsi_task_hdr pdu_hdr;
 940 };
 941
 942 struct ystorm_iscsi_task_ag_ctx {
 943         u8 reserved;
 944         u8 byte1;
 945         __le16 word0;
 946         u8 flags0;
 947 #define YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK     0xF
 948 #define YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT    0
 949 #define YSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK        0x1
 950 #define YSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT       4
 951 #define YSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK        0x1
 952 #define YSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT       5
 953 #define YSTORM_ISCSI_TASK_AG_CTX_VALID_MASK       0x1
 954 #define YSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT      6
 955 #define YSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK        0x1
 956 #define YSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT       7
 957         u8 flags1;
 958 #define YSTORM_ISCSI_TASK_AG_CTX_CF0_MASK         0x3
 959 #define YSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT        0
 960 #define YSTORM_ISCSI_TASK_AG_CTX_CF1_MASK         0x3
 961 #define YSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT        2
 962 #define YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_MASK  0x3
 963 #define YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_SHIFT 4
 964 #define YSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK       0x1
 965 #define YSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT      6
 966 #define YSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK       0x1
 967 #define YSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT      7
 968         u8 flags2;
 969 #define YSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK        0x1
 970 #define YSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT       0
 971 #define YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK     0x1
 972 #define YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT    1
 973 #define YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK     0x1
 974 #define YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT    2
 975 #define YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK     0x1
 976 #define YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT    3
 977 #define YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK     0x1
 978 #define YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT    4
 979 #define YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK     0x1
 980 #define YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT    5
 981 #define YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK     0x1
 982 #define YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT    6
 983 #define YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK     0x1
 984 #define YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT    7
 985         u8 byte2;
 986         __le32 TTT;
 987         u8 byte3;
 988         u8 byte4;
 989         __le16 word1;
 990 };
 991
 992 struct mstorm_iscsi_task_ag_ctx {
 993         u8 cdu_validation;
 994         u8 byte1;
 995         __le16 task_cid;
 996         u8 flags0;
 997 #define MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK     0xF
 998 #define MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT    0
 999 #define MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK        0x1
1000 #define MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT       4
1001 #define MSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK                0x1
1002 #define MSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT               5
1003 #define MSTORM_ISCSI_TASK_AG_CTX_VALID_MASK               0x1
1004 #define MSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT              6
1005 #define MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_MASK   0x1
1006 #define MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_SHIFT  7
1007         u8 flags1;
1008 #define MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_MASK     0x3
1009 #define MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_SHIFT    0
1010 #define MSTORM_ISCSI_TASK_AG_CTX_CF1_MASK                 0x3
1011 #define MSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT                2
1012 #define MSTORM_ISCSI_TASK_AG_CTX_CF2_MASK                 0x3
1013 #define MSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT                4
1014 #define MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_MASK  0x1
1015 #define MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_SHIFT 6
1016 #define MSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK               0x1
1017 #define MSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT              7
1018         u8 flags2;
1019 #define MSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK               0x1
1020 #define MSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT              0
1021 #define MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK             0x1
1022 #define MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT            1
1023 #define MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK             0x1
1024 #define MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT            2
1025 #define MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK             0x1
1026 #define MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT            3
1027 #define MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK             0x1
1028 #define MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT            4
1029 #define MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK             0x1
1030 #define MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT            5
1031 #define MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK             0x1
1032 #define MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT            6
1033 #define MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK             0x1
1034 #define MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT            7
1035         u8 byte2;
1036         __le32 reg0;
1037         u8 byte3;
1038         u8 byte4;
1039         __le16 word1;
1040 };
1041
1042 struct ustorm_iscsi_task_ag_ctx {
1043         u8 reserved;
1044         u8 state;
1045         __le16 icid;
1046         u8 flags0;
1047 #define USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK        0xF
1048 #define USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT       0
1049 #define USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK           0x1
1050 #define USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT          4
1051 #define USTORM_ISCSI_TASK_AG_CTX_BIT1_MASK                   0x1
1052 #define USTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT                  5
1053 #define USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_MASK          0x3
1054 #define USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_SHIFT         6
1055         u8 flags1;
1056 #define USTORM_ISCSI_TASK_AG_CTX_RESERVED1_MASK              0x3
1057 #define USTORM_ISCSI_TASK_AG_CTX_RESERVED1_SHIFT             0
1058 #define USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_MASK               0x3
1059 #define USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_SHIFT              2
1060 #define USTORM_ISCSI_TASK_AG_CTX_CF3_MASK                    0x3
1061 #define USTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT                   4
1062 #define USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_MASK           0x3
1063 #define USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_SHIFT          6
1064         u8 flags2;
1065 #define USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_MASK       0x1
1066 #define USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_SHIFT      0
1067 #define USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_MASK     0x1
1068 #define USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_SHIFT    1
1069 #define USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_MASK            0x1
1070 #define USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_SHIFT           2
1071 #define USTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK                  0x1
1072 #define USTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT                 3
1073 #define USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_MASK        0x1
1074 #define USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_SHIFT       4
1075 #define USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_MASK  0x1
1076 #define USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_SHIFT 5
1077 #define USTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK                0x1
1078 #define USTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT               6
1079 #define USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_MASK    0x1
1080 #define USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_SHIFT   7
1081         u8 flags3;
1082 #define USTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK                0x1
1083 #define USTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT               0
1084 #define USTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK                0x1
1085 #define USTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT               1
1086 #define USTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK                0x1
1087 #define USTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT               2
1088 #define USTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK                0x1
1089 #define USTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT               3
1090 #define USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_MASK         0xF
1091 #define USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_SHIFT        4
1092         __le32 dif_err_intervals;
1093         __le32 dif_error_1st_interval;
1094         __le32 rcv_cont_len;
1095         __le32 exp_cont_len;
1096         __le32 total_data_acked;
1097         __le32 exp_data_acked;
1098         u8 next_tid_valid;
1099         u8 byte3;
1100         __le16 word1;
1101         __le16 next_tid;
1102         __le16 word3;
1103         __le32 hdr_residual_count;
1104         __le32 exp_r2t_sn;
1105 };
1106
1107 struct mstorm_iscsi_task_st_ctx {
1108         struct scsi_cached_sges data_desc;
1109         struct scsi_sgl_params sgl_params;
1110         __le32 rem_task_size;
1111         __le32 data_buffer_offset;
1112         u8 task_type;
1113         struct iscsi_dif_flags dif_flags;
1114         u8 reserved0[2];
1115         struct regpair sense_db;
1116         __le32 expected_itt;
1117         __le32 reserved1;
1118 };
1119
1120 struct ustorm_iscsi_task_st_ctx {
1121         __le32 rem_rcv_len;
1122         __le32 exp_data_transfer_len;
1123         __le32 exp_data_sn;
1124         struct regpair lun;
1125         struct iscsi_reg1 reg1;
1126         u8 flags2;
1127 #define USTORM_ISCSI_TASK_ST_CTX_AHS_EXIST_MASK             0x1
1128 #define USTORM_ISCSI_TASK_ST_CTX_AHS_EXIST_SHIFT            0
1129 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED1_MASK             0x7F
1130 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED1_SHIFT            1
1131         struct iscsi_dif_flags dif_flags;
1132         __le16 reserved3;
1133         __le32 reserved4;
1134         __le32 reserved5;
1135         __le32 reserved6;
1136         __le32 reserved7;
1137         u8 task_type;
1138         u8 error_flags;
1139 #define USTORM_ISCSI_TASK_ST_CTX_DATA_DIGEST_ERROR_MASK     0x1
1140 #define USTORM_ISCSI_TASK_ST_CTX_DATA_DIGEST_ERROR_SHIFT    0
1141 #define USTORM_ISCSI_TASK_ST_CTX_DATA_TRUNCATED_ERROR_MASK  0x1
1142 #define USTORM_ISCSI_TASK_ST_CTX_DATA_TRUNCATED_ERROR_SHIFT 1
1143 #define USTORM_ISCSI_TASK_ST_CTX_UNDER_RUN_ERROR_MASK       0x1
1144 #define USTORM_ISCSI_TASK_ST_CTX_UNDER_RUN_ERROR_SHIFT      2
1145 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED8_MASK             0x1F
1146 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED8_SHIFT            3
1147         u8 flags;
1148 #define USTORM_ISCSI_TASK_ST_CTX_CQE_WRITE_MASK             0x3
1149 #define USTORM_ISCSI_TASK_ST_CTX_CQE_WRITE_SHIFT            0
1150 #define USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP_MASK            0x1
1151 #define USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP_SHIFT           2
1152 #define USTORM_ISCSI_TASK_ST_CTX_Q0_R2TQE_WRITE_MASK        0x1
1153 #define USTORM_ISCSI_TASK_ST_CTX_Q0_R2TQE_WRITE_SHIFT       3
1154 #define USTORM_ISCSI_TASK_ST_CTX_TOTAL_DATA_ACKED_DONE_MASK  0x1
1155 #define USTORM_ISCSI_TASK_ST_CTX_TOTAL_DATA_ACKED_DONE_SHIFT 4
1156 #define USTORM_ISCSI_TASK_ST_CTX_HQ_SCANNED_DONE_MASK        0x1
1157 #define USTORM_ISCSI_TASK_ST_CTX_HQ_SCANNED_DONE_SHIFT       5
1158 #define USTORM_ISCSI_TASK_ST_CTX_R2T2RECV_DONE_MASK         0x1
1159 #define USTORM_ISCSI_TASK_ST_CTX_R2T2RECV_DONE_SHIFT        6
1160 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED0_MASK             0x1
1161 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED0_SHIFT            7
1162         u8 cq_rss_number;
1163 };
1164
1165 struct iscsi_task_context {
1166         struct ystorm_iscsi_task_st_ctx ystorm_st_context;
1167         struct ystorm_iscsi_task_ag_ctx ystorm_ag_context;
1168         struct regpair ystorm_ag_padding[2];
1169         struct tdif_task_context tdif_context;
1170         struct mstorm_iscsi_task_ag_ctx mstorm_ag_context;
1171         struct regpair mstorm_ag_padding[2];
1172         struct ustorm_iscsi_task_ag_ctx ustorm_ag_context;
1173         struct mstorm_iscsi_task_st_ctx mstorm_st_context;
1174         struct ustorm_iscsi_task_st_ctx ustorm_st_context;
1175         struct rdif_task_context rdif_context;
1176 };
1177
1178 enum iscsi_task_type {
1179         ISCSI_TASK_TYPE_INITIATOR_WRITE,
1180         ISCSI_TASK_TYPE_INITIATOR_READ,
1181         ISCSI_TASK_TYPE_MIDPATH,
1182         ISCSI_TASK_TYPE_UNSOLIC,
1183         ISCSI_TASK_TYPE_EXCHCLEANUP,
1184         ISCSI_TASK_TYPE_IRRELEVANT,
1185         ISCSI_TASK_TYPE_TARGET_WRITE,
1186         ISCSI_TASK_TYPE_TARGET_READ,
1187         ISCSI_TASK_TYPE_TARGET_RESPONSE,
1188         ISCSI_TASK_TYPE_LOGIN_RESPONSE,
1189         MAX_ISCSI_TASK_TYPE
1190 };
1191
1192 union iscsi_ttt_txlen_union {
1193         __le32 desired_tx_len;
1194         __le32 ttt;
1195 };
1196
1197 struct iscsi_uhqe {
1198         __le32 reg1;
1199 #define ISCSI_UHQE_PDU_PAYLOAD_LEN_MASK     0xFFFFF
1200 #define ISCSI_UHQE_PDU_PAYLOAD_LEN_SHIFT    0
1201 #define ISCSI_UHQE_LOCAL_COMP_MASK          0x1
1202 #define ISCSI_UHQE_LOCAL_COMP_SHIFT         20
1203 #define ISCSI_UHQE_TOGGLE_BIT_MASK          0x1
1204 #define ISCSI_UHQE_TOGGLE_BIT_SHIFT         21
1205 #define ISCSI_UHQE_PURE_PAYLOAD_MASK        0x1
1206 #define ISCSI_UHQE_PURE_PAYLOAD_SHIFT       22
1207 #define ISCSI_UHQE_LOGIN_RESPONSE_PDU_MASK  0x1
1208 #define ISCSI_UHQE_LOGIN_RESPONSE_PDU_SHIFT 23
1209 #define ISCSI_UHQE_TASK_ID_HI_MASK          0xFF
1210 #define ISCSI_UHQE_TASK_ID_HI_SHIFT         24
1211         __le32 reg2;
1212 #define ISCSI_UHQE_BUFFER_OFFSET_MASK       0xFFFFFF
1213 #define ISCSI_UHQE_BUFFER_OFFSET_SHIFT      0
1214 #define ISCSI_UHQE_TASK_ID_LO_MASK          0xFF
1215 #define ISCSI_UHQE_TASK_ID_LO_SHIFT         24
1216 };
1217
1218
1219 struct iscsi_wqe {
1220         __le16 task_id;
1221         u8 flags;
1222 #define ISCSI_WQE_WQE_TYPE_MASK        0x7
1223 #define ISCSI_WQE_WQE_TYPE_SHIFT       0
1224 #define ISCSI_WQE_NUM_SGES_MASK  0xF
1225 #define ISCSI_WQE_NUM_SGES_SHIFT 3
1226 #define ISCSI_WQE_RESPONSE_MASK        0x1
1227 #define ISCSI_WQE_RESPONSE_SHIFT       7
1228         struct iscsi_dif_flags prot_flags;
1229         __le32 contlen_cdbsize;
1230 #define ISCSI_WQE_CONT_LEN_MASK  0xFFFFFF
1231 #define ISCSI_WQE_CONT_LEN_SHIFT 0
1232 #define ISCSI_WQE_CDB_SIZE_MASK  0xFF
1233 #define ISCSI_WQE_CDB_SIZE_SHIFT 24
1234 };
1235
1236 enum iscsi_wqe_type {
1237         ISCSI_WQE_TYPE_NORMAL,
1238         ISCSI_WQE_TYPE_TASK_CLEANUP,
1239         ISCSI_WQE_TYPE_MIDDLE_PATH,
1240         ISCSI_WQE_TYPE_LOGIN,
1241         ISCSI_WQE_TYPE_FIRST_R2T_CONT,
1242         ISCSI_WQE_TYPE_NONFIRST_R2T_CONT,
1243         ISCSI_WQE_TYPE_RESPONSE,
1244         MAX_ISCSI_WQE_TYPE
1245 };
1246
1247 struct iscsi_xhqe {
1248         union iscsi_ttt_txlen_union ttt_or_txlen;
1249         __le32 exp_stat_sn;
1250         struct iscsi_dif_flags prot_flags;
1251         u8 total_ahs_length;
1252         u8 opcode;
1253         u8 flags;
1254 #define ISCSI_XHQE_FINAL_MASK       0x1
1255 #define ISCSI_XHQE_FINAL_SHIFT      0
1256 #define ISCSI_XHQE_STATUS_BIT_MASK  0x1
1257 #define ISCSI_XHQE_STATUS_BIT_SHIFT 1
1258 #define ISCSI_XHQE_NUM_SGES_MASK    0xF
1259 #define ISCSI_XHQE_NUM_SGES_SHIFT   2
1260 #define ISCSI_XHQE_RESERVED0_MASK   0x3
1261 #define ISCSI_XHQE_RESERVED0_SHIFT  6
1262         union iscsi_seq_num seq_num;
1263         __le16 reserved1;
1264 };
1265
1266 struct mstorm_iscsi_stats_drv {
1267         struct regpair iscsi_rx_dropped_pdus_task_not_valid;
1268 };
1269
1270 struct pstorm_iscsi_stats_drv {
1271         struct regpair iscsi_tx_bytes_cnt;
1272         struct regpair iscsi_tx_packet_cnt;
1273 };
1274
1275 struct tstorm_iscsi_stats_drv {
1276         struct regpair iscsi_rx_bytes_cnt;
1277         struct regpair iscsi_rx_packet_cnt;
1278         struct regpair iscsi_rx_new_ooo_isle_events_cnt;
1279         __le32 iscsi_cmdq_threshold_cnt;
1280         __le32 iscsi_rq_threshold_cnt;
1281         __le32 iscsi_immq_threshold_cnt;
1282 };
1283
1284 struct ustorm_iscsi_stats_drv {
1285         struct regpair iscsi_rx_data_pdu_cnt;
1286         struct regpair iscsi_rx_r2t_pdu_cnt;
1287         struct regpair iscsi_rx_total_pdu_cnt;
1288 };
1289
1290 struct xstorm_iscsi_stats_drv {
1291         struct regpair iscsi_tx_go_to_slow_start_event_cnt;
1292         struct regpair iscsi_tx_fast_retransmit_event_cnt;
1293 };
1294
1295 struct ystorm_iscsi_stats_drv {
1296         struct regpair iscsi_tx_data_pdu_cnt;
1297         struct regpair iscsi_tx_r2t_pdu_cnt;
1298         struct regpair iscsi_tx_total_pdu_cnt;
1299 };
1300
1301 struct tstorm_iscsi_task_ag_ctx {
1302         u8 byte0;
1303         u8 byte1;
1304         __le16 word0;
1305         u8 flags0;
1306 #define TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK  0xF
1307 #define TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0
1308 #define TSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK     0x1
1309 #define TSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT    4
1310 #define TSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK     0x1
1311 #define TSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT    5
1312 #define TSTORM_ISCSI_TASK_AG_CTX_BIT2_MASK     0x1
1313 #define TSTORM_ISCSI_TASK_AG_CTX_BIT2_SHIFT    6
1314 #define TSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK     0x1
1315 #define TSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT    7
1316         u8 flags1;
1317 #define TSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK     0x1
1318 #define TSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT    0
1319 #define TSTORM_ISCSI_TASK_AG_CTX_BIT5_MASK     0x1
1320 #define TSTORM_ISCSI_TASK_AG_CTX_BIT5_SHIFT    1
1321 #define TSTORM_ISCSI_TASK_AG_CTX_CF0_MASK      0x3
1322 #define TSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT     2
1323 #define TSTORM_ISCSI_TASK_AG_CTX_CF1_MASK      0x3
1324 #define TSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT     4
1325 #define TSTORM_ISCSI_TASK_AG_CTX_CF2_MASK      0x3
1326 #define TSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT     6
1327         u8 flags2;
1328 #define TSTORM_ISCSI_TASK_AG_CTX_CF3_MASK      0x3
1329 #define TSTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT     0
1330 #define TSTORM_ISCSI_TASK_AG_CTX_CF4_MASK      0x3
1331 #define TSTORM_ISCSI_TASK_AG_CTX_CF4_SHIFT     2
1332 #define TSTORM_ISCSI_TASK_AG_CTX_CF5_MASK      0x3
1333 #define TSTORM_ISCSI_TASK_AG_CTX_CF5_SHIFT     4
1334 #define TSTORM_ISCSI_TASK_AG_CTX_CF6_MASK      0x3
1335 #define TSTORM_ISCSI_TASK_AG_CTX_CF6_SHIFT     6
1336         u8 flags3;
1337 #define TSTORM_ISCSI_TASK_AG_CTX_CF7_MASK      0x3
1338 #define TSTORM_ISCSI_TASK_AG_CTX_CF7_SHIFT     0
1339 #define TSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK    0x1
1340 #define TSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT   2
1341 #define TSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK    0x1
1342 #define TSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT   3
1343 #define TSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK    0x1
1344 #define TSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT   4
1345 #define TSTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK    0x1
1346 #define TSTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT   5
1347 #define TSTORM_ISCSI_TASK_AG_CTX_CF4EN_MASK    0x1
1348 #define TSTORM_ISCSI_TASK_AG_CTX_CF4EN_SHIFT   6
1349 #define TSTORM_ISCSI_TASK_AG_CTX_CF5EN_MASK    0x1
1350 #define TSTORM_ISCSI_TASK_AG_CTX_CF5EN_SHIFT   7
1351         u8 flags4;
1352 #define TSTORM_ISCSI_TASK_AG_CTX_CF6EN_MASK    0x1
1353 #define TSTORM_ISCSI_TASK_AG_CTX_CF6EN_SHIFT   0
1354 #define TSTORM_ISCSI_TASK_AG_CTX_CF7EN_MASK    0x1
1355 #define TSTORM_ISCSI_TASK_AG_CTX_CF7EN_SHIFT   1
1356 #define TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK  0x1
1357 #define TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 2
1358 #define TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK  0x1
1359 #define TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 3
1360 #define TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK  0x1
1361 #define TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 4
1362 #define TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK  0x1
1363 #define TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 5
1364 #define TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK  0x1
1365 #define TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 6
1366 #define TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK  0x1
1367 #define TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 7
1368         u8 byte2;
1369         __le16 word1;
1370         __le32 reg0;
1371         u8 byte3;
1372         u8 byte4;
1373         __le16 word2;
1374         __le16 word3;
1375         __le16 word4;
1376         __le32 reg1;
1377         __le32 reg2;
1378 };
1379 struct iscsi_db_data {
1380         u8 params;
1381 #define ISCSI_DB_DATA_DEST_MASK         0x3
1382 #define ISCSI_DB_DATA_DEST_SHIFT        0
1383 #define ISCSI_DB_DATA_AGG_CMD_MASK      0x3
1384 #define ISCSI_DB_DATA_AGG_CMD_SHIFT     2
1385 #define ISCSI_DB_DATA_BYPASS_EN_MASK    0x1
1386 #define ISCSI_DB_DATA_BYPASS_EN_SHIFT   4
1387 #define ISCSI_DB_DATA_RESERVED_MASK     0x1
1388 #define ISCSI_DB_DATA_RESERVED_SHIFT    5
1389 #define ISCSI_DB_DATA_AGG_VAL_SEL_MASK  0x3
1390 #define ISCSI_DB_DATA_AGG_VAL_SEL_SHIFT 6
1391         u8 agg_flags;
1392         __le16 sq_prod;
1393 };
1394
1395 #endif /* __ISCSI_COMMON__ */