1 /* 2 * Copyright (c) 2017-2018 Cavium, Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 * 29 */ 30 31 #ifndef __ISCSI_COMMON__ 32 #define __ISCSI_COMMON__ 33 /**********************/ 34 /* ISCSI FW CONSTANTS */ 35 /**********************/ 36 37 /* iSCSI HSI constants */ 38 #define ISCSI_DEFAULT_MTU (1500) 39 40 /* KWQ (kernel work queue) layer codes */ 41 #define ISCSI_SLOW_PATH_LAYER_CODE (6) 42 43 /* iSCSI parameter defaults */ 44 #define ISCSI_DEFAULT_HEADER_DIGEST (0) 45 #define ISCSI_DEFAULT_DATA_DIGEST (0) 46 #define ISCSI_DEFAULT_INITIAL_R2T (1) 47 #define ISCSI_DEFAULT_IMMEDIATE_DATA (1) 48 #define ISCSI_DEFAULT_MAX_PDU_LENGTH (0x2000) 49 #define ISCSI_DEFAULT_FIRST_BURST_LENGTH (0x10000) 50 #define ISCSI_DEFAULT_MAX_BURST_LENGTH (0x40000) 51 #define ISCSI_DEFAULT_MAX_OUTSTANDING_R2T (1) 52 53 /* iSCSI parameter limits */ 54 #define ISCSI_MIN_VAL_MAX_PDU_LENGTH (0x200) 55 #define ISCSI_MAX_VAL_MAX_PDU_LENGTH (0xffffff) 56 #define ISCSI_MIN_VAL_BURST_LENGTH (0x200) 57 #define ISCSI_MAX_VAL_BURST_LENGTH (0xffffff) 58 #define ISCSI_MIN_VAL_MAX_OUTSTANDING_R2T (1) 59 #define ISCSI_MAX_VAL_MAX_OUTSTANDING_R2T (0xff) // 0x10000 according to RFC 60 61 #define ISCSI_AHS_CNTL_SIZE 4 62 63 #define ISCSI_WQE_NUM_SGES_SLOWIO (0xf) 64 65 /* iSCSI reserved params */ 66 #define ISCSI_ITT_ALL_ONES (0xffffffff) 67 #define ISCSI_TTT_ALL_ONES (0xffffffff) 68 69 #define ISCSI_OPTION_1_OFF_CHIP_TCP 1 70 #define ISCSI_OPTION_2_ON_CHIP_TCP 2 71 72 #define ISCSI_INITIATOR_MODE 0 73 #define ISCSI_TARGET_MODE 1 74 75 /* iSCSI request op codes */ 76 #define ISCSI_OPCODE_NOP_OUT (0) 77 #define ISCSI_OPCODE_SCSI_CMD (1) 78 #define ISCSI_OPCODE_TMF_REQUEST (2) 79 #define ISCSI_OPCODE_LOGIN_REQUEST (3) 80 #define ISCSI_OPCODE_TEXT_REQUEST (4) 81 #define ISCSI_OPCODE_DATA_OUT (5) 82 #define ISCSI_OPCODE_LOGOUT_REQUEST (6) 83 84 /* iSCSI response/messages op codes */ 85 #define ISCSI_OPCODE_NOP_IN (0x20) 86 #define ISCSI_OPCODE_SCSI_RESPONSE (0x21) 87 #define ISCSI_OPCODE_TMF_RESPONSE (0x22) 88 #define ISCSI_OPCODE_LOGIN_RESPONSE (0x23) 89 #define ISCSI_OPCODE_TEXT_RESPONSE (0x24) 90 #define ISCSI_OPCODE_DATA_IN (0x25) 91 #define ISCSI_OPCODE_LOGOUT_RESPONSE (0x26) 92 #define ISCSI_OPCODE_R2T (0x31) 93 #define ISCSI_OPCODE_ASYNC_MSG (0x32) 94 #define ISCSI_OPCODE_REJECT (0x3f) 95 96 /* iSCSI stages */ 97 #define ISCSI_STAGE_SECURITY_NEGOTIATION (0) 98 #define ISCSI_STAGE_LOGIN_OPERATIONAL_NEGOTIATION (1) 99 #define ISCSI_STAGE_FULL_FEATURE_PHASE (3) 100 101 /* iSCSI CQE errors */ 102 #define CQE_ERROR_BITMAP_DATA_DIGEST (0x08) 103 #define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN (0x10) 104 #define CQE_ERROR_BITMAP_DATA_TRUNCATED (0x20) 105 106 /* 107 * Union of data bd_opaque/ tq_tid 108 */ 109 union bd_opaque_tq_union 110 { 111 __le16 bd_opaque /* BDs opaque data */; 112 __le16 tq_tid /* Immediate Data with DIF TQe TID */; 113 }; 114 115 /* 116 * ISCSI SGL entry 117 */ 118 struct cqe_error_bitmap 119 { 120 u8 cqe_error_status_bits; 121 #define CQE_ERROR_BITMAP_DIF_ERR_BITS_MASK 0x7 /* Mark task with DIF error (3 bit): [0]-CRC/checksum, [1]-app tag, [2]-reference tag */ 122 #define CQE_ERROR_BITMAP_DIF_ERR_BITS_SHIFT 0 123 #define CQE_ERROR_BITMAP_DATA_DIGEST_ERR_MASK 0x1 /* Mark task with data digest error (1 bit) */ 124 #define CQE_ERROR_BITMAP_DATA_DIGEST_ERR_SHIFT 3 125 #define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN_MASK 0x1 /* Mark receive on invalid connection */ 126 #define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN_SHIFT 4 127 #define CQE_ERROR_BITMAP_DATA_TRUNCATED_ERR_MASK 0x1 /* Target Mode - Mark middle task error, data truncated */ 128 #define CQE_ERROR_BITMAP_DATA_TRUNCATED_ERR_SHIFT 5 129 #define CQE_ERROR_BITMAP_UNDER_RUN_ERR_MASK 0x1 130 #define CQE_ERROR_BITMAP_UNDER_RUN_ERR_SHIFT 6 131 #define CQE_ERROR_BITMAP_RESERVED2_MASK 0x1 132 #define CQE_ERROR_BITMAP_RESERVED2_SHIFT 7 133 }; 134 135 union cqe_error_status 136 { 137 u8 error_status /* all error bits as uint8 */; 138 struct cqe_error_bitmap error_bits /* cqe errors bitmap */; 139 }; 140 141 /* 142 * iSCSI Login Response PDU header 143 */ 144 struct data_hdr 145 { 146 __le32 data[12] /* iscsi header data */; 147 }; 148 149 struct lun_mapper_addr_reserved 150 { 151 struct regpair lun_mapper_addr /* Lun mapper address */; 152 u8 reserved0[8]; 153 }; 154 155 /* 156 * rdif conetxt for dif on immediate 157 */ 158 struct dif_on_immediate_params 159 { 160 __le32 initial_ref_tag; 161 __le16 application_tag; 162 __le16 application_tag_mask; 163 __le16 flags1; 164 #define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_GUARD_MASK 0x1 165 #define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_GUARD_SHIFT 0 166 #define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_APP_TAG_MASK 0x1 167 #define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_APP_TAG_SHIFT 1 168 #define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_REF_TAG_MASK 0x1 169 #define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_REF_TAG_SHIFT 2 170 #define DIF_ON_IMMEDIATE_PARAMS_FORWARD_GUARD_MASK 0x1 171 #define DIF_ON_IMMEDIATE_PARAMS_FORWARD_GUARD_SHIFT 3 172 #define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_MASK 0x1 173 #define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_SHIFT 4 174 #define DIF_ON_IMMEDIATE_PARAMS_FORWARD_REF_TAG_MASK 0x1 175 #define DIF_ON_IMMEDIATE_PARAMS_FORWARD_REF_TAG_SHIFT 5 176 #define DIF_ON_IMMEDIATE_PARAMS_INTERVAL_SIZE_MASK 0x1 /* 0=512B, 1=4KB */ 177 #define DIF_ON_IMMEDIATE_PARAMS_INTERVAL_SIZE_SHIFT 6 178 #define DIF_ON_IMMEDIATE_PARAMS_NETWORK_INTERFACE_MASK 0x1 /* 0=None, 1=DIF */ 179 #define DIF_ON_IMMEDIATE_PARAMS_NETWORK_INTERFACE_SHIFT 7 180 #define DIF_ON_IMMEDIATE_PARAMS_HOST_INTERFACE_MASK 0x3 /* 0=None, 1=DIF, 2=DIX */ 181 #define DIF_ON_IMMEDIATE_PARAMS_HOST_INTERFACE_SHIFT 8 182 #define DIF_ON_IMMEDIATE_PARAMS_REF_TAG_MASK_MASK 0xF /* mask for refernce tag handling */ 183 #define DIF_ON_IMMEDIATE_PARAMS_REF_TAG_MASK_SHIFT 10 184 #define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_WITH_MASK_MASK 0x1 /* Forward application tag with mask */ 185 #define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_WITH_MASK_SHIFT 14 186 #define DIF_ON_IMMEDIATE_PARAMS_FORWARD_REF_TAG_WITH_MASK_MASK 0x1 /* Forward reference tag with mask */ 187 #define DIF_ON_IMMEDIATE_PARAMS_FORWARD_REF_TAG_WITH_MASK_SHIFT 15 188 u8 flags0; 189 #define DIF_ON_IMMEDIATE_PARAMS_RESERVED_MASK 0x1 190 #define DIF_ON_IMMEDIATE_PARAMS_RESERVED_SHIFT 0 191 #define DIF_ON_IMMEDIATE_PARAMS_IGNORE_APP_TAG_MASK 0x1 192 #define DIF_ON_IMMEDIATE_PARAMS_IGNORE_APP_TAG_SHIFT 1 193 #define DIF_ON_IMMEDIATE_PARAMS_INITIAL_REF_TAG_IS_VALID_MASK 0x1 194 #define DIF_ON_IMMEDIATE_PARAMS_INITIAL_REF_TAG_IS_VALID_SHIFT 2 195 #define DIF_ON_IMMEDIATE_PARAMS_HOST_GUARD_TYPE_MASK 0x1 /* 0 = IP checksum, 1 = CRC */ 196 #define DIF_ON_IMMEDIATE_PARAMS_HOST_GUARD_TYPE_SHIFT 3 197 #define DIF_ON_IMMEDIATE_PARAMS_PROTECTION_TYPE_MASK 0x3 /* 1/2/3 - Protection Type */ 198 #define DIF_ON_IMMEDIATE_PARAMS_PROTECTION_TYPE_SHIFT 4 199 #define DIF_ON_IMMEDIATE_PARAMS_CRC_SEED_MASK 0x1 /* 0=0x0000, 1=0xffff */ 200 #define DIF_ON_IMMEDIATE_PARAMS_CRC_SEED_SHIFT 6 201 #define DIF_ON_IMMEDIATE_PARAMS_KEEP_REF_TAG_CONST_MASK 0x1 /* Keep reference tag constant */ 202 #define DIF_ON_IMMEDIATE_PARAMS_KEEP_REF_TAG_CONST_SHIFT 7 203 u8 reserved_zero[5]; 204 }; 205 206 /* 207 * iSCSI dif on immediate mode attributes union 208 */ 209 union dif_configuration_params 210 { 211 struct lun_mapper_addr_reserved lun_mapper_address /* lun mapper address */; 212 struct dif_on_immediate_params def_dif_conf /* default dif on immediate rdif configuration */; 213 }; 214 215 /* 216 * Union of data/r2t sequence number 217 */ 218 union iscsi_seq_num 219 { 220 __le16 data_sn /* data-in sequence number */; 221 __le16 r2t_sn /* r2t pdu sequence number */; 222 }; 223 224 /* 225 * iSCSI DIF flags 226 */ 227 struct iscsi_dif_flags 228 { 229 u8 flags; 230 #define ISCSI_DIF_FLAGS_PROT_INTERVAL_SIZE_LOG_MASK 0xF /* Protection log interval (9=512 10=1024 11=2048 12=4096 13=8192) */ 231 #define ISCSI_DIF_FLAGS_PROT_INTERVAL_SIZE_LOG_SHIFT 0 232 #define ISCSI_DIF_FLAGS_DIF_TO_PEER_MASK 0x1 /* If DIF protection is configured against target (0=no, 1=yes) */ 233 #define ISCSI_DIF_FLAGS_DIF_TO_PEER_SHIFT 4 234 #define ISCSI_DIF_FLAGS_HOST_INTERFACE_MASK 0x7 /* If DIF/DIX protection is configured against the host (0=none, 1=DIF, 2=DIX 2 bytes, 3=DIX 4 bytes, 4=DIX 8 bytes) */ 235 #define ISCSI_DIF_FLAGS_HOST_INTERFACE_SHIFT 5 236 }; 237 238 /* 239 * The iscsi storm task context of Ystorm 240 */ 241 struct ystorm_iscsi_task_state 242 { 243 struct scsi_cached_sges data_desc; 244 struct scsi_sgl_params sgl_params; 245 __le32 exp_r2t_sn /* Initiator mode - Expected R2T PDU index in sequence. [variable, initialized 0] */; 246 __le32 buffer_offset /* Payload data offset */; 247 union iscsi_seq_num seq_num /* PDU index in sequence */; 248 struct iscsi_dif_flags dif_flags /* Dif flags */; 249 u8 flags; 250 #define YSTORM_ISCSI_TASK_STATE_LOCAL_COMP_MASK 0x1 /* local_completion */ 251 #define YSTORM_ISCSI_TASK_STATE_LOCAL_COMP_SHIFT 0 252 #define YSTORM_ISCSI_TASK_STATE_SLOW_IO_MASK 0x1 /* Equals 1 if SGL is predicted and 0 otherwise. */ 253 #define YSTORM_ISCSI_TASK_STATE_SLOW_IO_SHIFT 1 254 #define YSTORM_ISCSI_TASK_STATE_SET_DIF_OFFSET_MASK 0x1 /* Indication for Ystorm that TDIFs offsetInIo is not synced with buffer_offset */ 255 #define YSTORM_ISCSI_TASK_STATE_SET_DIF_OFFSET_SHIFT 2 256 #define YSTORM_ISCSI_TASK_STATE_RESERVED0_MASK 0x1F 257 #define YSTORM_ISCSI_TASK_STATE_RESERVED0_SHIFT 3 258 }; 259 260 /* 261 * The iscsi storm task context of Ystorm 262 */ 263 struct ystorm_iscsi_task_rxmit_opt 264 { 265 __le32 fast_rxmit_sge_offset /* SGE offset from which to continue dummy-read or start fast retransmit */; 266 __le32 scan_start_buffer_offset /* Starting buffer offset of next retransmit SGL scan */; 267 __le32 fast_rxmit_buffer_offset /* Buffer offset from which to continue dummy-read or start fast retransmit */; 268 u8 scan_start_sgl_index /* Starting SGL index of next retransmit SGL scan */; 269 u8 fast_rxmit_sgl_index /* SGL index from which to continue dummy-read or start fast retransmit */; 270 __le16 reserved /* reserved */; 271 }; 272 273 /* 274 * iSCSI Common PDU header 275 */ 276 struct iscsi_common_hdr 277 { 278 u8 hdr_status /* Status field of ISCSI header */; 279 u8 hdr_response /* Response field of ISCSI header for Responses / Reserved for Data-In */; 280 u8 hdr_flags /* Flags field of ISCSI header */; 281 u8 hdr_first_byte; 282 #define ISCSI_COMMON_HDR_OPCODE_MASK 0x3F /* Opcode */ 283 #define ISCSI_COMMON_HDR_OPCODE_SHIFT 0 284 #define ISCSI_COMMON_HDR_IMM_MASK 0x1 /* Immediate */ 285 #define ISCSI_COMMON_HDR_IMM_SHIFT 6 286 #define ISCSI_COMMON_HDR_RSRV_MASK 0x1 /* first bit of iSCSI PDU header */ 287 #define ISCSI_COMMON_HDR_RSRV_SHIFT 7 288 __le32 hdr_second_dword; 289 #define ISCSI_COMMON_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 290 #define ISCSI_COMMON_HDR_DATA_SEG_LEN_SHIFT 0 291 #define ISCSI_COMMON_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 292 #define ISCSI_COMMON_HDR_TOTAL_AHS_LEN_SHIFT 24 293 struct regpair lun_reserved /* Bytes 8..15 : LUN (if PDU contains a LUN field) or reserved */; 294 __le32 itt /* ITT - common to all headers */; 295 __le32 ttt /* bytes 20 to 23 - common ttt to various PDU headers */; 296 __le32 cmdstat_sn /* bytes 24 to 27 - common cmd_sn (initiator) or stat_sn (target) to various PDU headers */; 297 __le32 exp_statcmd_sn /* bytes 28 to 31 - common expected stat_sn (initiator) or cmd_sn (target) to various PDU headers */; 298 __le32 max_cmd_sn /* bytes 32 to 35 - common max cmd_sn to various PDU headers */; 299 __le32 data[3] /* bytes 36 to 47 */; 300 }; 301 302 /* 303 * iSCSI Command PDU header 304 */ 305 struct iscsi_cmd_hdr 306 { 307 __le16 reserved1 /* reserved */; 308 u8 flags_attr; 309 #define ISCSI_CMD_HDR_ATTR_MASK 0x7 /* attributes */ 310 #define ISCSI_CMD_HDR_ATTR_SHIFT 0 311 #define ISCSI_CMD_HDR_RSRV_MASK 0x3 /* reserved */ 312 #define ISCSI_CMD_HDR_RSRV_SHIFT 3 313 #define ISCSI_CMD_HDR_WRITE_MASK 0x1 /* write */ 314 #define ISCSI_CMD_HDR_WRITE_SHIFT 5 315 #define ISCSI_CMD_HDR_READ_MASK 0x1 /* read */ 316 #define ISCSI_CMD_HDR_READ_SHIFT 6 317 #define ISCSI_CMD_HDR_FINAL_MASK 0x1 /* final */ 318 #define ISCSI_CMD_HDR_FINAL_SHIFT 7 319 u8 hdr_first_byte; 320 #define ISCSI_CMD_HDR_OPCODE_MASK 0x3F /* Opcode */ 321 #define ISCSI_CMD_HDR_OPCODE_SHIFT 0 322 #define ISCSI_CMD_HDR_IMM_MASK 0x1 /* Immediate delivery */ 323 #define ISCSI_CMD_HDR_IMM_SHIFT 6 324 #define ISCSI_CMD_HDR_RSRV1_MASK 0x1 /* first bit of iSCSI PDU header */ 325 #define ISCSI_CMD_HDR_RSRV1_SHIFT 7 326 __le32 hdr_second_dword; 327 #define ISCSI_CMD_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 328 #define ISCSI_CMD_HDR_DATA_SEG_LEN_SHIFT 0 329 #define ISCSI_CMD_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 330 #define ISCSI_CMD_HDR_TOTAL_AHS_LEN_SHIFT 24 331 struct regpair lun /* Logical Unit Number. [constant, initialized] */; 332 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 333 __le32 expected_transfer_length /* Expected Data Transfer Length (only 3 bytes are significant) */; 334 __le32 cmd_sn /* CmdSn. [constant, initialized] */; 335 __le32 exp_stat_sn /* various fields for middle-path PDU. [constant, initialized] */; 336 __le32 cdb[4] /* CDB. [constant, initialized] */; 337 }; 338 339 /* 340 * iSCSI Command PDU header with Extended CDB (Initiator Mode) 341 */ 342 struct iscsi_ext_cdb_cmd_hdr 343 { 344 __le16 reserved1 /* reserved */; 345 u8 flags_attr; 346 #define ISCSI_EXT_CDB_CMD_HDR_ATTR_MASK 0x7 /* attributes */ 347 #define ISCSI_EXT_CDB_CMD_HDR_ATTR_SHIFT 0 348 #define ISCSI_EXT_CDB_CMD_HDR_RSRV_MASK 0x3 /* reserved */ 349 #define ISCSI_EXT_CDB_CMD_HDR_RSRV_SHIFT 3 350 #define ISCSI_EXT_CDB_CMD_HDR_WRITE_MASK 0x1 /* write */ 351 #define ISCSI_EXT_CDB_CMD_HDR_WRITE_SHIFT 5 352 #define ISCSI_EXT_CDB_CMD_HDR_READ_MASK 0x1 /* read */ 353 #define ISCSI_EXT_CDB_CMD_HDR_READ_SHIFT 6 354 #define ISCSI_EXT_CDB_CMD_HDR_FINAL_MASK 0x1 /* final */ 355 #define ISCSI_EXT_CDB_CMD_HDR_FINAL_SHIFT 7 356 u8 opcode /* opcode. [constant, initialized] */; 357 __le32 hdr_second_dword; 358 #define ISCSI_EXT_CDB_CMD_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 359 #define ISCSI_EXT_CDB_CMD_HDR_DATA_SEG_LEN_SHIFT 0 360 #define ISCSI_EXT_CDB_CMD_HDR_CDB_SIZE_MASK 0xFF /* The Extended CDB size in bytes. Maximum Extended CDB size supported is CDB 64B. */ 361 #define ISCSI_EXT_CDB_CMD_HDR_CDB_SIZE_SHIFT 24 362 struct regpair lun /* Logical Unit Number. [constant, initialized] */; 363 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 364 __le32 expected_transfer_length /* Expected Data Transfer Length (only 3 bytes are significant) */; 365 __le32 cmd_sn /* CmdSn. [constant, initialized] */; 366 __le32 exp_stat_sn /* various fields for middle-path PDU. [constant, initialized] */; 367 struct scsi_sge cdb_sge /* Extended CDBs dedicated SGE */; 368 }; 369 370 /* 371 * iSCSI login request PDU header 372 */ 373 struct iscsi_login_req_hdr 374 { 375 u8 version_min /* Version-min */; 376 u8 version_max /* Version-max */; 377 u8 flags_attr; 378 #define ISCSI_LOGIN_REQ_HDR_NSG_MASK 0x3 /* Next Stage (NSG) */ 379 #define ISCSI_LOGIN_REQ_HDR_NSG_SHIFT 0 380 #define ISCSI_LOGIN_REQ_HDR_CSG_MASK 0x3 /* Current stage (CSG) */ 381 #define ISCSI_LOGIN_REQ_HDR_CSG_SHIFT 2 382 #define ISCSI_LOGIN_REQ_HDR_RSRV_MASK 0x3 /* reserved */ 383 #define ISCSI_LOGIN_REQ_HDR_RSRV_SHIFT 4 384 #define ISCSI_LOGIN_REQ_HDR_C_MASK 0x1 /* C (Continue) bit */ 385 #define ISCSI_LOGIN_REQ_HDR_C_SHIFT 6 386 #define ISCSI_LOGIN_REQ_HDR_T_MASK 0x1 /* T (Transit) bit */ 387 #define ISCSI_LOGIN_REQ_HDR_T_SHIFT 7 388 u8 opcode /* opcode. [constant, initialized] */; 389 __le32 hdr_second_dword; 390 #define ISCSI_LOGIN_REQ_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 391 #define ISCSI_LOGIN_REQ_HDR_DATA_SEG_LEN_SHIFT 0 392 #define ISCSI_LOGIN_REQ_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 393 #define ISCSI_LOGIN_REQ_HDR_TOTAL_AHS_LEN_SHIFT 24 394 __le32 isid_tabc /* Session identifier high double word [constant, initialized] */; 395 __le16 tsih /* TSIH */; 396 __le16 isid_d /* Session identifier low word [constant, initialized] */; 397 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 398 __le16 reserved1; 399 __le16 cid /* Unique Connection ID within the session [constant, initialized] */; 400 __le32 cmd_sn /* CmdSn. [constant, initialized] */; 401 __le32 exp_stat_sn /* various fields for middle-path PDU. [constant, initialized] */; 402 __le32 reserved2[4]; 403 }; 404 405 /* 406 * iSCSI logout request PDU header 407 */ 408 struct iscsi_logout_req_hdr 409 { 410 __le16 reserved0 /* reserved */; 411 u8 reason_code /* Reason Code */; 412 u8 opcode /* opcode. [constant, initialized] */; 413 __le32 reserved1; 414 __le32 reserved2[2] /* Reserved */; 415 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 416 __le16 reserved3 /* Reserved */; 417 __le16 cid /* Unique Connection ID within the session [constant, initialized] */; 418 __le32 cmd_sn /* CmdSn. [constant, initialized] */; 419 __le32 exp_stat_sn /* various fields for middle-path PDU. [constant, initialized] */; 420 __le32 reserved4[4] /* Reserved */; 421 }; 422 423 /* 424 * iSCSI Data-out PDU header 425 */ 426 struct iscsi_data_out_hdr 427 { 428 __le16 reserved1 /* reserved */; 429 u8 flags_attr; 430 #define ISCSI_DATA_OUT_HDR_RSRV_MASK 0x7F /* reserved */ 431 #define ISCSI_DATA_OUT_HDR_RSRV_SHIFT 0 432 #define ISCSI_DATA_OUT_HDR_FINAL_MASK 0x1 /* final */ 433 #define ISCSI_DATA_OUT_HDR_FINAL_SHIFT 7 434 u8 opcode /* opcode */; 435 __le32 reserved2 /* reserved */; 436 struct regpair lun /* Logical Unit Number */; 437 __le32 itt /* Initiator Task Tag (only 2 bytes are significant) */; 438 __le32 ttt /* Target Transfer Tag (from R2T) */; 439 __le32 reserved3 /* resrved */; 440 __le32 exp_stat_sn /* Expected StatSn */; 441 __le32 reserved4 /* resrved */; 442 __le32 data_sn /* DataSN - PDU index in sequnece */; 443 __le32 buffer_offset /* Buffer Offset - offset in task */; 444 __le32 reserved5 /* resrved */; 445 }; 446 447 /* 448 * iSCSI Data-in PDU header 449 */ 450 struct iscsi_data_in_hdr 451 { 452 u8 status_rsvd /* Status or reserved */; 453 u8 reserved1 /* reserved */; 454 u8 flags; 455 #define ISCSI_DATA_IN_HDR_STATUS_MASK 0x1 /* Status */ 456 #define ISCSI_DATA_IN_HDR_STATUS_SHIFT 0 457 #define ISCSI_DATA_IN_HDR_UNDERFLOW_MASK 0x1 /* Residual Underflow */ 458 #define ISCSI_DATA_IN_HDR_UNDERFLOW_SHIFT 1 459 #define ISCSI_DATA_IN_HDR_OVERFLOW_MASK 0x1 /* Residual Overflow */ 460 #define ISCSI_DATA_IN_HDR_OVERFLOW_SHIFT 2 461 #define ISCSI_DATA_IN_HDR_RSRV_MASK 0x7 /* reserved - 0 */ 462 #define ISCSI_DATA_IN_HDR_RSRV_SHIFT 3 463 #define ISCSI_DATA_IN_HDR_ACK_MASK 0x1 /* Acknowledge */ 464 #define ISCSI_DATA_IN_HDR_ACK_SHIFT 6 465 #define ISCSI_DATA_IN_HDR_FINAL_MASK 0x1 /* final */ 466 #define ISCSI_DATA_IN_HDR_FINAL_SHIFT 7 467 u8 opcode /* opcode */; 468 __le32 reserved2 /* reserved */; 469 struct regpair lun /* Logical Unit Number */; 470 __le32 itt /* Initiator Task Tag (only 2 bytes are significant) */; 471 __le32 ttt /* Target Transfer Tag (from R2T) */; 472 __le32 stat_sn /* StatSN or reserved */; 473 __le32 exp_cmd_sn /* Expected CmdSn */; 474 __le32 max_cmd_sn /* MaxCmdSn */; 475 __le32 data_sn /* DataSN - PDU index in sequnece */; 476 __le32 buffer_offset /* Buffer Offset - offset in task */; 477 __le32 residual_count /* Residual Count */; 478 }; 479 480 /* 481 * iSCSI R2T PDU header 482 */ 483 struct iscsi_r2t_hdr 484 { 485 u8 reserved0[3] /* reserved */; 486 u8 opcode /* opcode */; 487 __le32 reserved2 /* reserved */; 488 struct regpair lun /* Logical Unit Number */; 489 __le32 itt /* Initiator Task Tag */; 490 __le32 ttt /* Target Transfer Tag */; 491 __le32 stat_sn /* stat sn */; 492 __le32 exp_cmd_sn /* Expected CmdSn */; 493 __le32 max_cmd_sn /* Max CmdSn */; 494 __le32 r2t_sn /* DataSN - PDU index in sequnece */; 495 __le32 buffer_offset /* Buffer Offset - offset in task */; 496 __le32 desired_data_trns_len /* Desired data trnsfer len */; 497 }; 498 499 /* 500 * iSCSI NOP-out PDU header 501 */ 502 struct iscsi_nop_out_hdr 503 { 504 __le16 reserved1 /* reserved */; 505 u8 flags_attr; 506 #define ISCSI_NOP_OUT_HDR_RSRV_MASK 0x7F /* reserved */ 507 #define ISCSI_NOP_OUT_HDR_RSRV_SHIFT 0 508 #define ISCSI_NOP_OUT_HDR_CONST1_MASK 0x1 /* const1 */ 509 #define ISCSI_NOP_OUT_HDR_CONST1_SHIFT 7 510 u8 opcode /* opcode */; 511 __le32 reserved2 /* reserved */; 512 struct regpair lun /* Logical Unit Number */; 513 __le32 itt /* Initiator Task Tag (only 2 bytes are significant) */; 514 __le32 ttt /* Target Transfer Tag (from R2T) */; 515 __le32 cmd_sn /* CmdSN */; 516 __le32 exp_stat_sn /* Expected StatSn */; 517 __le32 reserved3 /* reserved */; 518 __le32 reserved4 /* reserved */; 519 __le32 reserved5 /* reserved */; 520 __le32 reserved6 /* reserved */; 521 }; 522 523 /* 524 * iSCSI NOP-in PDU header 525 */ 526 struct iscsi_nop_in_hdr 527 { 528 __le16 reserved0 /* reserved */; 529 u8 flags_attr; 530 #define ISCSI_NOP_IN_HDR_RSRV_MASK 0x7F /* reserved */ 531 #define ISCSI_NOP_IN_HDR_RSRV_SHIFT 0 532 #define ISCSI_NOP_IN_HDR_CONST1_MASK 0x1 /* const1 */ 533 #define ISCSI_NOP_IN_HDR_CONST1_SHIFT 7 534 u8 opcode /* opcode */; 535 __le32 hdr_second_dword; 536 #define ISCSI_NOP_IN_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 537 #define ISCSI_NOP_IN_HDR_DATA_SEG_LEN_SHIFT 0 538 #define ISCSI_NOP_IN_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 539 #define ISCSI_NOP_IN_HDR_TOTAL_AHS_LEN_SHIFT 24 540 struct regpair lun /* Logical Unit Number */; 541 __le32 itt /* Initiator Task Tag (only 2 bytes are significant) */; 542 __le32 ttt /* Target Transfer Tag */; 543 __le32 stat_sn /* stat_sn */; 544 __le32 exp_cmd_sn /* exp_cmd_sn */; 545 __le32 max_cmd_sn /* max_cmd_sn */; 546 __le32 reserved5 /* reserved */; 547 __le32 reserved6 /* reserved */; 548 __le32 reserved7 /* reserved */; 549 }; 550 551 /* 552 * iSCSI Login Response PDU header 553 */ 554 struct iscsi_login_response_hdr 555 { 556 u8 version_active /* Version-active */; 557 u8 version_max /* Version-max */; 558 u8 flags_attr; 559 #define ISCSI_LOGIN_RESPONSE_HDR_NSG_MASK 0x3 /* Next Stage (NSG) */ 560 #define ISCSI_LOGIN_RESPONSE_HDR_NSG_SHIFT 0 561 #define ISCSI_LOGIN_RESPONSE_HDR_CSG_MASK 0x3 /* Current stage (CSG) */ 562 #define ISCSI_LOGIN_RESPONSE_HDR_CSG_SHIFT 2 563 #define ISCSI_LOGIN_RESPONSE_HDR_RSRV_MASK 0x3 /* reserved */ 564 #define ISCSI_LOGIN_RESPONSE_HDR_RSRV_SHIFT 4 565 #define ISCSI_LOGIN_RESPONSE_HDR_C_MASK 0x1 /* C (Continue) bit */ 566 #define ISCSI_LOGIN_RESPONSE_HDR_C_SHIFT 6 567 #define ISCSI_LOGIN_RESPONSE_HDR_T_MASK 0x1 /* T (Transit) bit */ 568 #define ISCSI_LOGIN_RESPONSE_HDR_T_SHIFT 7 569 u8 opcode /* opcode. [constant, initialized] */; 570 __le32 hdr_second_dword; 571 #define ISCSI_LOGIN_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 572 #define ISCSI_LOGIN_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0 573 #define ISCSI_LOGIN_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 574 #define ISCSI_LOGIN_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24 575 __le32 isid_tabc /* Session identifier high double word [constant, initialized] */; 576 __le16 tsih /* TSIH */; 577 __le16 isid_d /* Session identifier low word [constant, initialized] */; 578 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 579 __le32 reserved1; 580 __le32 stat_sn /* CmdSn. [constant, initialized] */; 581 __le32 exp_cmd_sn /* various fields for middle-path PDU. [constant, initialized] */; 582 __le32 max_cmd_sn /* max_cmd_sn */; 583 __le16 reserved2; 584 u8 status_detail /* status_detail */; 585 u8 status_class /* status_class */; 586 __le32 reserved4[2]; 587 }; 588 589 /* 590 * iSCSI Logout Response PDU header 591 */ 592 struct iscsi_logout_response_hdr 593 { 594 u8 reserved1 /* reserved */; 595 u8 response /* response */; 596 u8 flags /* flags and attributes */; 597 u8 opcode /* opcode. [constant, initialized] */; 598 __le32 hdr_second_dword; 599 #define ISCSI_LOGOUT_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 600 #define ISCSI_LOGOUT_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0 601 #define ISCSI_LOGOUT_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 602 #define ISCSI_LOGOUT_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24 603 __le32 reserved2[2] /* Reserved */; 604 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 605 __le32 reserved3 /* Reserved */; 606 __le32 stat_sn /* CmdSN */; 607 __le32 exp_cmd_sn /* Expected StatSn */; 608 __le32 max_cmd_sn /* CmdSN */; 609 __le32 reserved4 /* Reserved */; 610 __le16 time_2_retain /* Time to Retain */; 611 __le16 time_2_wait /* Time to wait */; 612 __le32 reserved5[1] /* Reserved */; 613 }; 614 615 /* 616 * iSCSI Text Request PDU header 617 */ 618 struct iscsi_text_request_hdr 619 { 620 __le16 reserved0 /* reserved */; 621 u8 flags_attr; 622 #define ISCSI_TEXT_REQUEST_HDR_RSRV_MASK 0x3F /* reserved */ 623 #define ISCSI_TEXT_REQUEST_HDR_RSRV_SHIFT 0 624 #define ISCSI_TEXT_REQUEST_HDR_C_MASK 0x1 /* C (Continue) bit */ 625 #define ISCSI_TEXT_REQUEST_HDR_C_SHIFT 6 626 #define ISCSI_TEXT_REQUEST_HDR_F_MASK 0x1 /* F (Final) bit */ 627 #define ISCSI_TEXT_REQUEST_HDR_F_SHIFT 7 628 u8 opcode /* opcode. [constant, initialized] */; 629 __le32 hdr_second_dword; 630 #define ISCSI_TEXT_REQUEST_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 631 #define ISCSI_TEXT_REQUEST_HDR_DATA_SEG_LEN_SHIFT 0 632 #define ISCSI_TEXT_REQUEST_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 633 #define ISCSI_TEXT_REQUEST_HDR_TOTAL_AHS_LEN_SHIFT 24 634 struct regpair lun /* Logical Unit Number */; 635 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 636 __le32 ttt /* Referenced Task Tag or 0xffffffff */; 637 __le32 cmd_sn /* cmd_sn */; 638 __le32 exp_stat_sn /* exp_stat_sn */; 639 __le32 reserved4[4] /* Reserved */; 640 }; 641 642 /* 643 * iSCSI Text Response PDU header 644 */ 645 struct iscsi_text_response_hdr 646 { 647 __le16 reserved1 /* reserved */; 648 u8 flags; 649 #define ISCSI_TEXT_RESPONSE_HDR_RSRV_MASK 0x3F /* reserved */ 650 #define ISCSI_TEXT_RESPONSE_HDR_RSRV_SHIFT 0 651 #define ISCSI_TEXT_RESPONSE_HDR_C_MASK 0x1 /* C (Continue) bit */ 652 #define ISCSI_TEXT_RESPONSE_HDR_C_SHIFT 6 653 #define ISCSI_TEXT_RESPONSE_HDR_F_MASK 0x1 /* F (Final) bit */ 654 #define ISCSI_TEXT_RESPONSE_HDR_F_SHIFT 7 655 u8 opcode /* opcode. [constant, initialized] */; 656 __le32 hdr_second_dword; 657 #define ISCSI_TEXT_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 658 #define ISCSI_TEXT_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0 659 #define ISCSI_TEXT_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 660 #define ISCSI_TEXT_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24 661 struct regpair lun /* Logical Unit Number */; 662 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 663 __le32 ttt /* Target Task Tag */; 664 __le32 stat_sn /* CmdSN */; 665 __le32 exp_cmd_sn /* Expected StatSn */; 666 __le32 max_cmd_sn /* CmdSN */; 667 __le32 reserved4[3] /* Reserved */; 668 }; 669 670 /* 671 * iSCSI TMF Request PDU header 672 */ 673 struct iscsi_tmf_request_hdr 674 { 675 __le16 reserved0 /* reserved */; 676 u8 function /* function */; 677 u8 opcode /* opcode. [constant, initialized] */; 678 __le32 hdr_second_dword; 679 #define ISCSI_TMF_REQUEST_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 680 #define ISCSI_TMF_REQUEST_HDR_DATA_SEG_LEN_SHIFT 0 681 #define ISCSI_TMF_REQUEST_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 682 #define ISCSI_TMF_REQUEST_HDR_TOTAL_AHS_LEN_SHIFT 24 683 struct regpair lun /* Logical Unit Number */; 684 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 685 __le32 rtt /* Referenced Task Tag or 0xffffffff */; 686 __le32 cmd_sn /* cmd_sn */; 687 __le32 exp_stat_sn /* exp_stat_sn */; 688 __le32 ref_cmd_sn /* ref_cmd_sn */; 689 __le32 exp_data_sn /* exp_data_sn */; 690 __le32 reserved4[2] /* Reserved */; 691 }; 692 693 struct iscsi_tmf_response_hdr 694 { 695 u8 reserved2 /* reserved2 */; 696 u8 hdr_response /* Response field of ISCSI header for Responses / Reserved for Data-In */; 697 u8 hdr_flags /* Flags field of ISCSI header */; 698 u8 opcode /* opcode. [constant, initialized] */; 699 __le32 hdr_second_dword; 700 #define ISCSI_TMF_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 701 #define ISCSI_TMF_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0 702 #define ISCSI_TMF_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 703 #define ISCSI_TMF_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24 704 struct regpair reserved0; 705 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 706 __le32 reserved1 /* Reserved */; 707 __le32 stat_sn /* stat_sn */; 708 __le32 exp_cmd_sn /* exp_cmd_sn */; 709 __le32 max_cmd_sn /* max_cmd_sn */; 710 __le32 reserved4[3] /* Reserved */; 711 }; 712 713 /* 714 * iSCSI Response PDU header 715 */ 716 struct iscsi_response_hdr 717 { 718 u8 hdr_status /* Status field of ISCSI header */; 719 u8 hdr_response /* Response field of ISCSI header for Responses / Reserved for Data-In */; 720 u8 hdr_flags /* Flags field of ISCSI header */; 721 u8 opcode /* opcode. [constant, initialized] */; 722 __le32 hdr_second_dword; 723 #define ISCSI_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 724 #define ISCSI_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0 725 #define ISCSI_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 726 #define ISCSI_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24 727 struct regpair lun /* Logical Unit Number */; 728 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 729 __le32 snack_tag /* Currently ERL>0 is not supported */; 730 __le32 stat_sn /* CmdSN */; 731 __le32 exp_cmd_sn /* Expected StatSn */; 732 __le32 max_cmd_sn /* CmdSN */; 733 __le32 exp_data_sn /* exp_data_sn */; 734 __le32 bi_residual_count /* bi residual count */; 735 __le32 residual_count /* residual count */; 736 }; 737 738 /* 739 * iSCSI Reject PDU header 740 */ 741 struct iscsi_reject_hdr 742 { 743 u8 reserved4 /* Reserved */; 744 u8 hdr_reason /* The reject reason */; 745 u8 hdr_flags /* Flags field of ISCSI header */; 746 u8 opcode /* opcode. [constant, initialized] */; 747 __le32 hdr_second_dword; 748 #define ISCSI_REJECT_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 749 #define ISCSI_REJECT_HDR_DATA_SEG_LEN_SHIFT 0 750 #define ISCSI_REJECT_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 751 #define ISCSI_REJECT_HDR_TOTAL_AHS_LEN_SHIFT 24 752 struct regpair reserved0; 753 __le32 all_ones; 754 __le32 reserved2; 755 __le32 stat_sn /* stat_sn */; 756 __le32 exp_cmd_sn /* exp_cmd_sn */; 757 __le32 max_cmd_sn /* max_cmd_sn */; 758 __le32 data_sn /* data_sn */; 759 __le32 reserved3[2] /* reserved3 */; 760 }; 761 762 /* 763 * iSCSI Asynchronous Message PDU header 764 */ 765 struct iscsi_async_msg_hdr 766 { 767 __le16 reserved0 /* reserved */; 768 u8 flags_attr; 769 #define ISCSI_ASYNC_MSG_HDR_RSRV_MASK 0x7F /* reserved */ 770 #define ISCSI_ASYNC_MSG_HDR_RSRV_SHIFT 0 771 #define ISCSI_ASYNC_MSG_HDR_CONST1_MASK 0x1 /* const1 */ 772 #define ISCSI_ASYNC_MSG_HDR_CONST1_SHIFT 7 773 u8 opcode /* opcode */; 774 __le32 hdr_second_dword; 775 #define ISCSI_ASYNC_MSG_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 776 #define ISCSI_ASYNC_MSG_HDR_DATA_SEG_LEN_SHIFT 0 777 #define ISCSI_ASYNC_MSG_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 778 #define ISCSI_ASYNC_MSG_HDR_TOTAL_AHS_LEN_SHIFT 24 779 struct regpair lun /* Logical Unit Number */; 780 __le32 all_ones /* should be 0xffffffff */; 781 __le32 reserved1 /* reserved */; 782 __le32 stat_sn /* stat_sn */; 783 __le32 exp_cmd_sn /* exp_cmd_sn */; 784 __le32 max_cmd_sn /* max_cmd_sn */; 785 __le16 param1_rsrv /* Parameter1 or Reserved */; 786 u8 async_vcode /* AsuncVCode */; 787 u8 async_event /* AsyncEvent */; 788 __le16 param3_rsrv /* Parameter3 or Reserved */; 789 __le16 param2_rsrv /* Parameter2 or Reserved */; 790 __le32 reserved7 /* reserved */; 791 }; 792 793 /* 794 * PDU header part of Ystorm task context 795 */ 796 union iscsi_task_hdr 797 { 798 struct iscsi_common_hdr common /* Command PDU header */; 799 struct data_hdr data /* Command PDU header */; 800 struct iscsi_cmd_hdr cmd /* Command PDU header */; 801 struct iscsi_ext_cdb_cmd_hdr ext_cdb_cmd /* Command PDU header with extended CDB - Initiator Mode */; 802 struct iscsi_login_req_hdr login_req /* Login request PDU header */; 803 struct iscsi_logout_req_hdr logout_req /* Logout request PDU header */; 804 struct iscsi_data_out_hdr data_out /* Data-out PDU header */; 805 struct iscsi_data_in_hdr data_in /* Data-in PDU header */; 806 struct iscsi_r2t_hdr r2t /* R2T PDU header */; 807 struct iscsi_nop_out_hdr nop_out /* NOP-out PDU header */; 808 struct iscsi_nop_in_hdr nop_in /* NOP-in PDU header */; 809 struct iscsi_login_response_hdr login_response /* Login response PDU header */; 810 struct iscsi_logout_response_hdr logout_response /* Logout response PDU header */; 811 struct iscsi_text_request_hdr text_request /* Text request PDU header */; 812 struct iscsi_text_response_hdr text_response /* Text response PDU header */; 813 struct iscsi_tmf_request_hdr tmf_request /* TMF request PDU header */; 814 struct iscsi_tmf_response_hdr tmf_response /* TMF response PDU header */; 815 struct iscsi_response_hdr response /* Text response PDU header */; 816 struct iscsi_reject_hdr reject /* Reject PDU header */; 817 struct iscsi_async_msg_hdr async_msg /* Asynchronous Message PDU header */; 818 }; 819 820 /* 821 * The iscsi storm task context of Ystorm 822 */ 823 struct ystorm_iscsi_task_st_ctx 824 { 825 struct ystorm_iscsi_task_state state /* iSCSI task parameters and state */; 826 struct ystorm_iscsi_task_rxmit_opt rxmit_opt /* iSCSI retransmit optimizations parameters */; 827 union iscsi_task_hdr pdu_hdr /* PDU header - [constant initialized] */; 828 }; 829 830 struct e4_ystorm_iscsi_task_ag_ctx 831 { 832 u8 reserved /* cdu_validation */; 833 u8 byte1 /* state */; 834 __le16 word0 /* icid */; 835 u8 flags0; 836 #define E4_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF /* connection_type */ 837 #define E4_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0 838 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 /* exist_in_qm0 */ 839 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4 840 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */ 841 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5 842 #define E4_YSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 /* bit2 */ 843 #define E4_YSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6 844 #define E4_YSTORM_ISCSI_TASK_AG_CTX_TTT_VALID_MASK 0x1 /* bit3 */ 845 #define E4_YSTORM_ISCSI_TASK_AG_CTX_TTT_VALID_SHIFT 7 846 u8 flags1; 847 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 /* cf0 */ 848 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 0 849 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* cf1 */ 850 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2 851 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_MASK 0x3 /* cf2special */ 852 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_SHIFT 4 853 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 /* cf0en */ 854 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 6 855 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */ 856 #define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7 857 u8 flags2; 858 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 /* bit4 */ 859 #define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0 860 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */ 861 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1 862 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */ 863 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2 864 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */ 865 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3 866 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */ 867 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4 868 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */ 869 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5 870 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */ 871 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6 872 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */ 873 #define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7 874 u8 byte2 /* byte2 */; 875 __le32 TTT /* reg0 */; 876 u8 byte3 /* byte3 */; 877 u8 byte4 /* byte4 */; 878 __le16 word1 /* word1 */; 879 }; 880 881 struct e4_mstorm_iscsi_task_ag_ctx 882 { 883 u8 cdu_validation /* cdu_validation */; 884 u8 byte1 /* state */; 885 __le16 task_cid /* icid */; 886 u8 flags0; 887 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF /* connection_type */ 888 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0 889 #define E4_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 /* exist_in_qm0 */ 890 #define E4_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4 891 #define E4_MSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */ 892 #define E4_MSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5 893 #define E4_MSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 /* bit2 */ 894 #define E4_MSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6 895 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_MASK 0x1 /* bit3 */ 896 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_SHIFT 7 897 u8 flags1; 898 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_MASK 0x3 /* cf0 */ 899 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_SHIFT 0 900 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* cf1 */ 901 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2 902 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 /* cf2 */ 903 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 4 904 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_MASK 0x1 /* cf0en */ 905 #define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_SHIFT 6 906 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */ 907 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7 908 u8 flags2; 909 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 /* cf2en */ 910 #define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 0 911 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */ 912 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1 913 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */ 914 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2 915 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */ 916 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3 917 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */ 918 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4 919 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */ 920 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5 921 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */ 922 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6 923 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */ 924 #define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7 925 u8 byte2 /* byte2 */; 926 __le32 reg0 /* reg0 */; 927 u8 byte3 /* byte3 */; 928 u8 byte4 /* byte4 */; 929 __le16 word1 /* word1 */; 930 }; 931 932 struct e4_ustorm_iscsi_task_ag_ctx 933 { 934 u8 reserved /* cdu_validation */; 935 u8 state /* state */; 936 __le16 icid /* icid */; 937 u8 flags0; 938 #define E4_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF /* connection_type */ 939 #define E4_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0 940 #define E4_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 /* exist_in_qm0 */ 941 #define E4_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4 942 #define E4_USTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */ 943 #define E4_USTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5 944 #define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_MASK 0x3 /* timer0cf */ 945 #define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_SHIFT 6 946 u8 flags1; 947 #define E4_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_MASK 0x3 /* timer1cf */ 948 #define E4_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_SHIFT 0 949 #define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_MASK 0x3 /* timer2cf */ 950 #define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_SHIFT 2 951 #define E4_USTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 /* timer_stop_all */ 952 #define E4_USTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 4 953 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_MASK 0x3 /* cf4 */ 954 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_SHIFT 6 955 u8 flags2; 956 #define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_MASK 0x1 /* cf0en */ 957 #define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_SHIFT 0 958 #define E4_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_MASK 0x1 /* cf1en */ 959 #define E4_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_SHIFT 1 960 #define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_MASK 0x1 /* cf2en */ 961 #define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_SHIFT 2 962 #define E4_USTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 /* cf3en */ 963 #define E4_USTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 3 964 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_MASK 0x1 /* cf4en */ 965 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_SHIFT 4 966 #define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_MASK 0x1 /* rule0en */ 967 #define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_SHIFT 5 968 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */ 969 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 6 970 #define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_MASK 0x1 /* rule2en */ 971 #define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_SHIFT 7 972 u8 flags3; 973 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */ 974 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 0 975 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */ 976 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 1 977 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */ 978 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 2 979 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */ 980 #define E4_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 3 981 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_MASK 0xF /* nibble1 */ 982 #define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_SHIFT 4 983 __le32 dif_err_intervals /* reg0 */; 984 __le32 dif_error_1st_interval /* reg1 */; 985 __le32 rcv_cont_len /* reg2 */; 986 __le32 exp_cont_len /* reg3 */; 987 __le32 total_data_acked /* reg4 */; 988 __le32 exp_data_acked /* reg5 */; 989 u8 next_tid_valid /* byte2 */; 990 u8 byte3 /* byte3 */; 991 __le16 word1 /* word1 */; 992 __le16 next_tid /* word2 */; 993 __le16 word3 /* word3 */; 994 __le32 hdr_residual_count /* reg6 */; 995 __le32 exp_r2t_sn /* reg7 */; 996 }; 997 998 /* 999 * The iscsi storm task context of Mstorm 1000 */ 1001 struct mstorm_iscsi_task_st_ctx 1002 { 1003 struct scsi_cached_sges data_desc /* Union of Data SGL / cached sge */; 1004 struct scsi_sgl_params sgl_params; 1005 __le32 rem_task_size /* Remaining task size, used for placement verification */; 1006 __le32 data_buffer_offset /* Buffer offset */; 1007 u8 task_type /* Task type, (use: iscsi_task_type enum) */; 1008 struct iscsi_dif_flags dif_flags /* sizes of host/peer protection intervals + protection log interval */; 1009 __le16 dif_task_icid /* save tasks CID for validation - dif on immediate flow */; 1010 struct regpair sense_db /* Pointer to sense data buffer */; 1011 __le32 expected_itt /* ITT - for target mode validations */; 1012 __le32 reserved1 /* reserved1 */; 1013 }; 1014 1015 struct iscsi_reg1 1016 { 1017 __le32 reg1_map; 1018 #define ISCSI_REG1_NUM_SGES_MASK 0xF /* Written to R2tQE */ 1019 #define ISCSI_REG1_NUM_SGES_SHIFT 0 1020 #define ISCSI_REG1_RESERVED1_MASK 0xFFFFFFF /* reserved */ 1021 #define ISCSI_REG1_RESERVED1_SHIFT 4 1022 }; 1023 1024 struct tqe_opaque 1025 { 1026 __le16 opaque[2] /* TQe opaque */; 1027 }; 1028 1029 /* 1030 * The iscsi storm task context of Ustorm 1031 */ 1032 struct ustorm_iscsi_task_st_ctx 1033 { 1034 __le32 rem_rcv_len /* Remaining data to be received in bytes. Used in validations */; 1035 __le32 exp_data_transfer_len /* iSCSI Initiator - The size of the transmitted task, iSCSI Target - the size of the Rx continuation */; 1036 __le32 exp_data_sn /* Expected data SN */; 1037 struct regpair lun /* LUN */; 1038 struct iscsi_reg1 reg1; 1039 u8 flags2; 1040 #define USTORM_ISCSI_TASK_ST_CTX_AHS_EXIST_MASK 0x1 /* Initiator Mode - Mark AHS exist */ 1041 #define USTORM_ISCSI_TASK_ST_CTX_AHS_EXIST_SHIFT 0 1042 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED1_MASK 0x7F 1043 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED1_SHIFT 1 1044 struct iscsi_dif_flags dif_flags /* Dif flags (written to R2T WQE) */; 1045 __le16 reserved3; 1046 struct tqe_opaque tqe_opaque_list; 1047 __le32 reserved5; 1048 __le32 reserved6; 1049 __le32 reserved7; 1050 u8 task_type /* Task Type */; 1051 u8 error_flags; 1052 #define USTORM_ISCSI_TASK_ST_CTX_DATA_DIGEST_ERROR_MASK 0x1 /* Mark task with data digest error (1 bit) */ 1053 #define USTORM_ISCSI_TASK_ST_CTX_DATA_DIGEST_ERROR_SHIFT 0 1054 #define USTORM_ISCSI_TASK_ST_CTX_DATA_TRUNCATED_ERROR_MASK 0x1 /* Target Mode - Mark middle task error, data truncated */ 1055 #define USTORM_ISCSI_TASK_ST_CTX_DATA_TRUNCATED_ERROR_SHIFT 1 1056 #define USTORM_ISCSI_TASK_ST_CTX_UNDER_RUN_ERROR_MASK 0x1 1057 #define USTORM_ISCSI_TASK_ST_CTX_UNDER_RUN_ERROR_SHIFT 2 1058 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED8_MASK 0x1F 1059 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED8_SHIFT 3 1060 u8 flags; 1061 #define USTORM_ISCSI_TASK_ST_CTX_CQE_WRITE_MASK 0x3 /* mark task cqe write (for cleanup flow) */ 1062 #define USTORM_ISCSI_TASK_ST_CTX_CQE_WRITE_SHIFT 0 1063 #define USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP_MASK 0x1 /* local completion bit */ 1064 #define USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP_SHIFT 2 1065 #define USTORM_ISCSI_TASK_ST_CTX_Q0_R2TQE_WRITE_MASK 0x1 /* write R2TQE from Q0 flow */ 1066 #define USTORM_ISCSI_TASK_ST_CTX_Q0_R2TQE_WRITE_SHIFT 3 1067 #define USTORM_ISCSI_TASK_ST_CTX_TOTAL_DATA_ACKED_DONE_MASK 0x1 /* Mark total data acked or disabled */ 1068 #define USTORM_ISCSI_TASK_ST_CTX_TOTAL_DATA_ACKED_DONE_SHIFT 4 1069 #define USTORM_ISCSI_TASK_ST_CTX_HQ_SCANNED_DONE_MASK 0x1 /* Mark HQ scanned or disabled */ 1070 #define USTORM_ISCSI_TASK_ST_CTX_HQ_SCANNED_DONE_SHIFT 5 1071 #define USTORM_ISCSI_TASK_ST_CTX_R2T2RECV_DONE_MASK 0x1 /* Mark HQ scanned or disabled */ 1072 #define USTORM_ISCSI_TASK_ST_CTX_R2T2RECV_DONE_SHIFT 6 1073 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED0_MASK 0x1 1074 #define USTORM_ISCSI_TASK_ST_CTX_RESERVED0_SHIFT 7 1075 u8 cq_rss_number /* Task CQ_RSS number 0.63 */; 1076 }; 1077 1078 /* 1079 * iscsi task context 1080 */ 1081 struct e4_iscsi_task_context 1082 { 1083 struct ystorm_iscsi_task_st_ctx ystorm_st_context /* ystorm storm context */; 1084 struct e4_ystorm_iscsi_task_ag_ctx ystorm_ag_context /* ystorm aggregative context */; 1085 struct regpair ystorm_ag_padding[2] /* padding */; 1086 struct tdif_task_context tdif_context /* tdif context */; 1087 struct e4_mstorm_iscsi_task_ag_ctx mstorm_ag_context /* mstorm aggregative context */; 1088 struct regpair mstorm_ag_padding[2] /* padding */; 1089 struct e4_ustorm_iscsi_task_ag_ctx ustorm_ag_context /* ustorm aggregative context */; 1090 struct mstorm_iscsi_task_st_ctx mstorm_st_context /* mstorm storm context */; 1091 struct ustorm_iscsi_task_st_ctx ustorm_st_context /* ustorm storm context */; 1092 struct rdif_task_context rdif_context /* rdif context */; 1093 }; 1094 1095 struct e5_ystorm_iscsi_task_ag_ctx 1096 { 1097 u8 reserved /* cdu_validation */; 1098 u8 byte1 /* state_and_core_id */; 1099 __le16 word0 /* icid */; 1100 u8 flags0; 1101 #define E5_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF /* connection_type */ 1102 #define E5_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0 1103 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 /* exist_in_qm0 */ 1104 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4 1105 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */ 1106 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5 1107 #define E5_YSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 /* bit2 */ 1108 #define E5_YSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6 1109 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1 /* bit3 */ 1110 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7 1111 u8 flags1; 1112 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 /* cf0 */ 1113 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 0 1114 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* cf1 */ 1115 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2 1116 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_MASK 0x3 /* cf2special */ 1117 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_SHIFT 4 1118 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 /* cf0en */ 1119 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 6 1120 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */ 1121 #define E5_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7 1122 u8 flags2; 1123 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 /* bit4 */ 1124 #define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0 1125 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */ 1126 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1 1127 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */ 1128 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2 1129 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */ 1130 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3 1131 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */ 1132 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4 1133 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */ 1134 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5 1135 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */ 1136 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6 1137 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */ 1138 #define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7 1139 u8 flags3; 1140 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_MASK 0x1 /* bit5 */ 1141 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_SHIFT 0 1142 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_MASK 0x3 /* cf3 */ 1143 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_SHIFT 1 1144 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_MASK 0x3 /* cf4 */ 1145 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_SHIFT 3 1146 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_MASK 0x1 /* cf3en */ 1147 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_SHIFT 5 1148 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_MASK 0x1 /* cf4en */ 1149 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_SHIFT 6 1150 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_MASK 0x1 /* rule7en */ 1151 #define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_SHIFT 7 1152 __le32 TTT /* reg0 */; 1153 u8 byte2 /* byte2 */; 1154 u8 byte3 /* byte3 */; 1155 u8 byte4 /* byte4 */; 1156 u8 e4_reserved7 /* byte5 */; 1157 }; 1158 1159 struct e5_mstorm_iscsi_task_ag_ctx 1160 { 1161 u8 cdu_validation /* cdu_validation */; 1162 u8 byte1 /* state_and_core_id */; 1163 __le16 task_cid /* icid */; 1164 u8 flags0; 1165 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF /* connection_type */ 1166 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0 1167 #define E5_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 /* exist_in_qm0 */ 1168 #define E5_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4 1169 #define E5_MSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */ 1170 #define E5_MSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5 1171 #define E5_MSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 /* bit2 */ 1172 #define E5_MSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6 1173 #define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_MASK 0x1 /* bit3 */ 1174 #define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_SHIFT 7 1175 u8 flags1; 1176 #define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_MASK 0x3 /* cf0 */ 1177 #define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_SHIFT 0 1178 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* cf1 */ 1179 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2 1180 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 /* cf2 */ 1181 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 4 1182 #define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_MASK 0x1 /* cf0en */ 1183 #define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_SHIFT 6 1184 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */ 1185 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7 1186 u8 flags2; 1187 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 /* cf2en */ 1188 #define E5_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 0 1189 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */ 1190 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1 1191 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */ 1192 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2 1193 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */ 1194 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3 1195 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */ 1196 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4 1197 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */ 1198 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5 1199 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */ 1200 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6 1201 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */ 1202 #define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7 1203 u8 flags3; 1204 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_MASK 0x1 /* bit4 */ 1205 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_SHIFT 0 1206 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_MASK 0x3 /* cf3 */ 1207 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_SHIFT 1 1208 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_MASK 0x3 /* cf4 */ 1209 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_SHIFT 3 1210 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_MASK 0x1 /* cf3en */ 1211 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_SHIFT 5 1212 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_MASK 0x1 /* cf4en */ 1213 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_SHIFT 6 1214 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_MASK 0x1 /* rule7en */ 1215 #define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_SHIFT 7 1216 __le32 reg0 /* reg0 */; 1217 u8 byte2 /* byte2 */; 1218 u8 byte3 /* byte3 */; 1219 u8 byte4 /* byte4 */; 1220 u8 e4_reserved7 /* byte5 */; 1221 }; 1222 1223 struct e5_ustorm_iscsi_task_ag_ctx 1224 { 1225 u8 reserved /* cdu_validation */; 1226 u8 state_and_core_id /* state_and_core_id */; 1227 __le16 icid /* icid */; 1228 u8 flags0; 1229 #define E5_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF /* connection_type */ 1230 #define E5_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0 1231 #define E5_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 /* exist_in_qm0 */ 1232 #define E5_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4 1233 #define E5_USTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */ 1234 #define E5_USTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5 1235 #define E5_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_MASK 0x3 /* timer0cf */ 1236 #define E5_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_SHIFT 6 1237 u8 flags1; 1238 #define E5_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_MASK 0x3 /* timer1cf */ 1239 #define E5_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_SHIFT 0 1240 #define E5_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_MASK 0x3 /* timer2cf */ 1241 #define E5_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_SHIFT 2 1242 #define E5_USTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 /* timer_stop_all */ 1243 #define E5_USTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 4 1244 #define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_MASK 0x3 /* dif_error_cf */ 1245 #define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_SHIFT 6 1246 u8 flags2; 1247 #define E5_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_MASK 0x1 /* cf0en */ 1248 #define E5_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_SHIFT 0 1249 #define E5_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_MASK 0x1 /* cf1en */ 1250 #define E5_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_SHIFT 1 1251 #define E5_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_MASK 0x1 /* cf2en */ 1252 #define E5_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_SHIFT 2 1253 #define E5_USTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 /* cf3en */ 1254 #define E5_USTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 3 1255 #define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_MASK 0x1 /* cf4en */ 1256 #define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_SHIFT 4 1257 #define E5_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_MASK 0x1 /* rule0en */ 1258 #define E5_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_SHIFT 5 1259 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */ 1260 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 6 1261 #define E5_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_MASK 0x1 /* rule2en */ 1262 #define E5_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_SHIFT 7 1263 u8 flags3; 1264 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */ 1265 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 0 1266 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */ 1267 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 1 1268 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */ 1269 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 2 1270 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */ 1271 #define E5_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 3 1272 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_MASK 0x1 /* bit2 */ 1273 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_SHIFT 4 1274 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_MASK 0x1 /* bit3 */ 1275 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_SHIFT 5 1276 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_MASK 0x1 /* bit4 */ 1277 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_SHIFT 6 1278 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_MASK 0x1 /* rule7en */ 1279 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_SHIFT 7 1280 u8 flags4; 1281 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_MASK 0x3 /* cf5 */ 1282 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_SHIFT 0 1283 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_MASK 0x1 /* cf5en */ 1284 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_SHIFT 2 1285 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED7_MASK 0x1 /* rule8en */ 1286 #define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED7_SHIFT 3 1287 #define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_MASK 0xF /* dif_error_type */ 1288 #define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_SHIFT 4 1289 u8 next_tid_valid /* byte2 */; 1290 u8 byte3 /* byte3 */; 1291 u8 e4_reserved8 /* byte4 */; 1292 __le32 dif_err_intervals /* dif_err_intervals */; 1293 __le32 dif_error_1st_interval /* dif_error_1st_interval */; 1294 __le32 rcv_cont_len /* reg2 */; 1295 __le32 exp_cont_len /* reg3 */; 1296 __le32 total_data_acked /* reg4 */; 1297 __le32 exp_data_acked /* reg5 */; 1298 __le16 word1 /* word1 */; 1299 __le16 next_tid /* word2 */; 1300 __le32 hdr_residual_count /* reg6 */; 1301 __le32 exp_r2t_sn /* reg7 */; 1302 }; 1303 1304 /* 1305 * iscsi task context 1306 */ 1307 struct e5_iscsi_task_context 1308 { 1309 struct ystorm_iscsi_task_st_ctx ystorm_st_context /* ystorm storm context */; 1310 struct e5_ystorm_iscsi_task_ag_ctx ystorm_ag_context /* ystorm aggregative context */; 1311 struct regpair ystorm_ag_padding[2] /* padding */; 1312 struct tdif_task_context tdif_context /* tdif context */; 1313 struct e5_mstorm_iscsi_task_ag_ctx mstorm_ag_context /* mstorm aggregative context */; 1314 struct regpair mstorm_ag_padding[2] /* padding */; 1315 struct e5_ustorm_iscsi_task_ag_ctx ustorm_ag_context /* ustorm aggregative context */; 1316 struct mstorm_iscsi_task_st_ctx mstorm_st_context /* mstorm storm context */; 1317 struct ustorm_iscsi_task_st_ctx ustorm_st_context /* ustorm storm context */; 1318 struct rdif_task_context rdif_context /* rdif context */; 1319 }; 1320 1321 /* 1322 * ISCSI connection offload params passed by driver to FW in ISCSI offload ramrod 1323 */ 1324 struct iscsi_conn_offload_params 1325 { 1326 struct regpair sq_pbl_addr /* PBL SQ pointer */; 1327 struct regpair r2tq_pbl_addr /* PBL R2TQ pointer */; 1328 struct regpair xhq_pbl_addr /* PBL XHQ pointer */; 1329 struct regpair uhq_pbl_addr /* PBL UHQ pointer */; 1330 __le32 initial_ack /* Initial ack, received from TCP */; 1331 __le16 physical_q0 /* Physical QM queue to be tied to logical Q0 */; 1332 __le16 physical_q1 /* Physical QM queue to be tied to logical Q1 */; 1333 u8 flags; 1334 #define ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B_MASK 0x1 /* TCP connect/terminate option. 0 - TCP on host (option-1); 1 - TCP on chip (option-2). */ 1335 #define ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B_SHIFT 0 1336 #define ISCSI_CONN_OFFLOAD_PARAMS_TARGET_MODE_MASK 0x1 /* iSCSI connect mode: 0-iSCSI Initiator, 1-iSCSI Target */ 1337 #define ISCSI_CONN_OFFLOAD_PARAMS_TARGET_MODE_SHIFT 1 1338 #define ISCSI_CONN_OFFLOAD_PARAMS_RESTRICTED_MODE_MASK 0x1 /* Restricted mode: 0 - un-restricted (deviating from the RFC), 1 - restricted (according to the RFC) */ 1339 #define ISCSI_CONN_OFFLOAD_PARAMS_RESTRICTED_MODE_SHIFT 2 1340 #define ISCSI_CONN_OFFLOAD_PARAMS_RESERVED1_MASK 0x1F /* reserved */ 1341 #define ISCSI_CONN_OFFLOAD_PARAMS_RESERVED1_SHIFT 3 1342 u8 pbl_page_size_log /* Page size with PBEs log; Page Size = 2^(page_size_log+12) */; 1343 u8 pbe_page_size_log /* PBE page size with log; Page Size = 2^(page_size_log+12) */; 1344 u8 default_cq /* Default CQ used to write unsolicited data */; 1345 __le32 stat_sn /* StatSn for Target Mode only: the first Login Response StatSn value for Target mode */; 1346 }; 1347 1348 /* 1349 * iSCSI connection statistics 1350 */ 1351 struct iscsi_conn_stats_params 1352 { 1353 struct regpair iscsi_tcp_tx_packets_cnt /* Counts number of transmitted TCP packets for this iSCSI connection */; 1354 struct regpair iscsi_tcp_tx_bytes_cnt /* Counts number of transmitted TCP bytes for this iSCSI connection */; 1355 struct regpair iscsi_tcp_tx_rxmit_cnt /* Counts number of TCP retransmission events for this iSCSI connection */; 1356 struct regpair iscsi_tcp_rx_packets_cnt /* Counts number of received TCP packets for this iSCSI connection */; 1357 struct regpair iscsi_tcp_rx_bytes_cnt /* Counts number of received TCP bytes for this iSCSI connection */; 1358 struct regpair iscsi_tcp_rx_dup_ack_cnt /* Counts number of received TCP duplicate acks for this iSCSI connection */; 1359 __le32 iscsi_tcp_rx_chksum_err_cnt /* Counts number of received TCP packets with checksum err for this iSCSI connection */; 1360 __le32 reserved; 1361 }; 1362 1363 /* 1364 * spe message header 1365 */ 1366 struct iscsi_slow_path_hdr 1367 { 1368 u8 op_code /* iscsi bus-drv message opcode */; 1369 u8 flags; 1370 #define ISCSI_SLOW_PATH_HDR_RESERVED0_MASK 0xF 1371 #define ISCSI_SLOW_PATH_HDR_RESERVED0_SHIFT 0 1372 #define ISCSI_SLOW_PATH_HDR_LAYER_CODE_MASK 0x7 /* protocol layer (L2,L3,L4,L5) */ 1373 #define ISCSI_SLOW_PATH_HDR_LAYER_CODE_SHIFT 4 1374 #define ISCSI_SLOW_PATH_HDR_RESERVED1_MASK 0x1 1375 #define ISCSI_SLOW_PATH_HDR_RESERVED1_SHIFT 7 1376 }; 1377 1378 /* 1379 * ISCSI connection update params passed by driver to FW in ISCSI update ramrod 1380 */ 1381 struct iscsi_conn_update_ramrod_params 1382 { 1383 struct iscsi_slow_path_hdr hdr /* spe message header. */; 1384 __le16 conn_id /* ISCSI Connection ID. (MOTI_COHEN : draft for DrvSim sake) */; 1385 __le32 fw_cid /* Context ID (cid) of the connection. (MOTI_COHEN : draft for DrvSim sake) */; 1386 u8 flags; 1387 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_HD_EN_MASK 0x1 /* Is header digest enabled */ 1388 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_HD_EN_SHIFT 0 1389 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DD_EN_MASK 0x1 /* Is data digest enabled */ 1390 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DD_EN_SHIFT 1 1391 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_INITIAL_R2T_MASK 0x1 /* Initial R2T */ 1392 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_INITIAL_R2T_SHIFT 2 1393 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_IMMEDIATE_DATA_MASK 0x1 /* Immediate data */ 1394 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_IMMEDIATE_DATA_SHIFT 3 1395 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_BLOCK_SIZE_MASK 0x1 /* 0 - 512B, 1 - 4K */ 1396 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_BLOCK_SIZE_SHIFT 4 1397 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_HOST_EN_MASK 0x1 /* 0 - no DIF, 1 - could be enabled per task */ 1398 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_HOST_EN_SHIFT 5 1399 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_IMM_EN_MASK 0x1 /* Support DIF on immediate, 1-Yes, 0-No */ 1400 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_IMM_EN_SHIFT 6 1401 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_LUN_MAPPER_EN_MASK 0x1 /* valid only if dif_on_imm_en=1 Does this connection has dif configuration per Lun or Default dif configuration */ 1402 #define ISCSI_CONN_UPDATE_RAMROD_PARAMS_LUN_MAPPER_EN_SHIFT 7 1403 u8 reserved0[3]; 1404 __le32 max_seq_size /* Maximum sequence size. Valid for TX and RX */; 1405 __le32 max_send_pdu_length /* Maximum PDU size. Valid for the TX */; 1406 __le32 max_recv_pdu_length /* Maximum PDU size. Valid for the RX */; 1407 __le32 first_seq_length /* Initial sequence length */; 1408 __le32 exp_stat_sn /* ExpStatSn - Option1 Only */; 1409 union dif_configuration_params dif_on_imme_params /* dif on immmediate params - Target mode Only */; 1410 }; 1411 1412 /* 1413 * iSCSI CQ element 1414 */ 1415 struct iscsi_cqe_common 1416 { 1417 __le16 conn_id /* Drivers connection Id */; 1418 u8 cqe_type /* Indicates CQE type (use enum iscsi_cqes_type) */; 1419 union cqe_error_status error_bitmap /* CQE error status */; 1420 __le32 reserved[3]; 1421 union iscsi_task_hdr iscsi_hdr /* iscsi header union */; 1422 }; 1423 1424 /* 1425 * iSCSI CQ element 1426 */ 1427 struct iscsi_cqe_solicited 1428 { 1429 __le16 conn_id /* Drivers connection Id */; 1430 u8 cqe_type /* Indicates CQE type (use enum iscsi_cqes_type) */; 1431 union cqe_error_status error_bitmap /* CQE error status */; 1432 __le16 itid /* initiator itt (Initiator mode) or target ttt (Target mode) */; 1433 u8 task_type /* Task type */; 1434 u8 fw_dbg_field /* FW debug params */; 1435 u8 caused_conn_err /* Equals 1 if this TID caused the connection error, otherwise equals 0. */; 1436 u8 reserved0[3]; 1437 __le32 data_truncated_bytes /* Target Mode only: Valid only if data_truncated_err equals 1: The remaining bytes till the end of the IO. */; 1438 union iscsi_task_hdr iscsi_hdr /* iscsi header union */; 1439 }; 1440 1441 /* 1442 * iSCSI CQ element 1443 */ 1444 struct iscsi_cqe_unsolicited 1445 { 1446 __le16 conn_id /* Drivers connection Id */; 1447 u8 cqe_type /* Indicates CQE type (use enum iscsi_cqes_type) */; 1448 union cqe_error_status error_bitmap /* CQE error status */; 1449 __le16 reserved0 /* Reserved */; 1450 u8 reserved1 /* Reserved */; 1451 u8 unsol_cqe_type /* Represent this unsolicited CQE position in a sequence of packets belonging to the same unsolicited PDU (use enum iscsi_cqe_unsolicited_type) */; 1452 __le16 rqe_opaque /* Relevant for Unsolicited CQE only: The opaque data of RQ BDQ */; 1453 __le16 reserved2[3] /* Reserved */; 1454 union iscsi_task_hdr iscsi_hdr /* iscsi header union */; 1455 }; 1456 1457 /* 1458 * iSCSI CQ element 1459 */ 1460 union iscsi_cqe 1461 { 1462 struct iscsi_cqe_common cqe_common /* Common CQE */; 1463 struct iscsi_cqe_solicited cqe_solicited /* Solicited CQE */; 1464 struct iscsi_cqe_unsolicited cqe_unsolicited /* Unsolicited CQE. relevant only when cqe_opcode == ISCSI_CQE_TYPE_UNSOLICITED */; 1465 }; 1466 1467 /* 1468 * iSCSI CQE type 1469 */ 1470 enum iscsi_cqes_type 1471 { 1472 ISCSI_CQE_TYPE_SOLICITED=1 /* iSCSI CQE with solicited data */, 1473 ISCSI_CQE_TYPE_UNSOLICITED /* iSCSI CQE with unsolicited data */, 1474 ISCSI_CQE_TYPE_SOLICITED_WITH_SENSE /* iSCSI CQE with solicited with sense data */, 1475 ISCSI_CQE_TYPE_TASK_CLEANUP /* iSCSI CQE task cleanup */, 1476 ISCSI_CQE_TYPE_DUMMY /* iSCSI Dummy CQE */, 1477 MAX_ISCSI_CQES_TYPE 1478 }; 1479 1480 /* 1481 * iSCSI CQE type 1482 */ 1483 enum iscsi_cqe_unsolicited_type 1484 { 1485 ISCSI_CQE_UNSOLICITED_NONE /* iSCSI CQE with unsolicited data */, 1486 ISCSI_CQE_UNSOLICITED_SINGLE /* iSCSI CQE with unsolicited data */, 1487 ISCSI_CQE_UNSOLICITED_FIRST /* iSCSI CQE with unsolicited data */, 1488 ISCSI_CQE_UNSOLICITED_MIDDLE /* iSCSI CQE with unsolicited data */, 1489 ISCSI_CQE_UNSOLICITED_LAST /* iSCSI CQE with unsolicited data */, 1490 MAX_ISCSI_CQE_UNSOLICITED_TYPE 1491 }; 1492 1493 /* 1494 * iscsi debug modes 1495 */ 1496 struct iscsi_debug_modes 1497 { 1498 u8 flags; 1499 #define ISCSI_DEBUG_MODES_ASSERT_IF_RX_CONN_ERROR_MASK 0x1 /* Assert on Rx connection error */ 1500 #define ISCSI_DEBUG_MODES_ASSERT_IF_RX_CONN_ERROR_SHIFT 0 1501 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_RESET_MASK 0x1 /* Assert if TCP RESET arrived */ 1502 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_RESET_SHIFT 1 1503 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_FIN_MASK 0x1 /* Assert if TCP FIN arrived */ 1504 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_FIN_SHIFT 2 1505 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_CLEANUP_MASK 0x1 /* Assert if cleanup flow */ 1506 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_CLEANUP_SHIFT 3 1507 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_REJECT_OR_ASYNC_MASK 0x1 /* Assert if REJECT PDU or ASYNC PDU arrived */ 1508 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_REJECT_OR_ASYNC_SHIFT 4 1509 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_NOP_MASK 0x1 /* Assert if NOP IN PDU or NOP OUT PDU arrived */ 1510 #define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_NOP_SHIFT 5 1511 #define ISCSI_DEBUG_MODES_ASSERT_IF_DIF_OR_DATA_DIGEST_ERROR_MASK 0x1 /* Assert if DIF or data digest error */ 1512 #define ISCSI_DEBUG_MODES_ASSERT_IF_DIF_OR_DATA_DIGEST_ERROR_SHIFT 6 1513 #define ISCSI_DEBUG_MODES_ASSERT_IF_HQ_CORRUPT_MASK 0x1 /* Assert if HQ corruption detected */ 1514 #define ISCSI_DEBUG_MODES_ASSERT_IF_HQ_CORRUPT_SHIFT 7 1515 }; 1516 1517 /* 1518 * iSCSI kernel completion queue IDs 1519 */ 1520 enum iscsi_eqe_opcode 1521 { 1522 ISCSI_EVENT_TYPE_INIT_FUNC=0 /* iSCSI response after init Ramrod */, 1523 ISCSI_EVENT_TYPE_DESTROY_FUNC /* iSCSI response after destroy Ramrod */, 1524 ISCSI_EVENT_TYPE_OFFLOAD_CONN /* iSCSI response after option 2 offload Ramrod */, 1525 ISCSI_EVENT_TYPE_UPDATE_CONN /* iSCSI response after update Ramrod */, 1526 ISCSI_EVENT_TYPE_CLEAR_SQ /* iSCSI response after clear sq Ramrod */, 1527 ISCSI_EVENT_TYPE_TERMINATE_CONN /* iSCSI response after termination Ramrod */, 1528 ISCSI_EVENT_TYPE_MAC_UPDATE_CONN /* iSCSI response after MAC address update Ramrod */, 1529 ISCSI_EVENT_TYPE_COLLECT_STATS_CONN /* iSCSI response after collecting connection statistics Ramrod */, 1530 ISCSI_EVENT_TYPE_ASYN_CONNECT_COMPLETE /* iSCSI response after option 2 connect completed (A-syn EQE) */, 1531 ISCSI_EVENT_TYPE_ASYN_TERMINATE_DONE /* iSCSI response after option 2 termination completed (A-syn EQE) */, 1532 ISCSI_EVENT_TYPE_START_OF_ERROR_TYPES=10 /* Never returned in EQE, used to separate Regular event types from Error event types */, 1533 ISCSI_EVENT_TYPE_ASYN_ABORT_RCVD /* iSCSI abort response after TCP RST packet recieve (A-syn EQE) */, 1534 ISCSI_EVENT_TYPE_ASYN_CLOSE_RCVD /* iSCSI response after close receive (A-syn EQE) */, 1535 ISCSI_EVENT_TYPE_ASYN_SYN_RCVD /* iSCSI response after TCP SYN+ACK packet receive (A-syn EQE) */, 1536 ISCSI_EVENT_TYPE_ASYN_MAX_RT_TIME /* iSCSI error - tcp max retransmit time (A-syn EQE) */, 1537 ISCSI_EVENT_TYPE_ASYN_MAX_RT_CNT /* iSCSI error - tcp max retransmit count (A-syn EQE) */, 1538 ISCSI_EVENT_TYPE_ASYN_MAX_KA_PROBES_CNT /* iSCSI error - tcp ka probes count (A-syn EQE) */, 1539 ISCSI_EVENT_TYPE_ASYN_FIN_WAIT2 /* iSCSI error - tcp fin wait 2 (A-syn EQE) */, 1540 ISCSI_EVENT_TYPE_ISCSI_CONN_ERROR /* iSCSI error response (A-syn EQE) */, 1541 ISCSI_EVENT_TYPE_TCP_CONN_ERROR /* iSCSI error - tcp error (A-syn EQE) */, 1542 MAX_ISCSI_EQE_OPCODE 1543 }; 1544 1545 /* 1546 * iSCSI EQE and CQE completion status 1547 */ 1548 enum iscsi_error_types 1549 { 1550 ISCSI_STATUS_NONE=0, 1551 ISCSI_CQE_ERROR_UNSOLICITED_RCV_ON_INVALID_CONN=1, 1552 ISCSI_CONN_ERROR_TASK_CID_MISMATCH /* iSCSI connection error - Corrupted Task context */, 1553 ISCSI_CONN_ERROR_TASK_NOT_VALID /* iSCSI connection error - The task is not valid */, 1554 ISCSI_CONN_ERROR_RQ_RING_IS_FULL /* iSCSI connection error - RQ full */, 1555 ISCSI_CONN_ERROR_CMDQ_RING_IS_FULL /* iSCSI connection error - CMDQ full (Target only) */, 1556 ISCSI_CONN_ERROR_HQE_CACHING_FAILED /* iSCSI connection error - HQ error */, 1557 ISCSI_CONN_ERROR_HEADER_DIGEST_ERROR /* iSCSI connection error - Header digest error */, 1558 ISCSI_CONN_ERROR_LOCAL_COMPLETION_ERROR /* iSCSI connection error - Local completion bit is not correct (A-syn EQE) */, 1559 ISCSI_CONN_ERROR_DATA_OVERRUN /* iSCSI connection error - data overrun */, 1560 ISCSI_CONN_ERROR_OUT_OF_SGES_ERROR /* iSCSI connection error - out of sges in task context */, 1561 ISCSI_CONN_ERROR_IP_OPTIONS_ERROR /* TCP connection error - IP option error */, 1562 ISCSI_CONN_ERROR_PRS_ERRORS /* TCP connection error - error indication form parser */, 1563 ISCSI_CONN_ERROR_CONNECT_INVALID_TCP_OPTION /* TCP connection error - tcp options error(option 2 only) */, 1564 ISCSI_CONN_ERROR_TCP_IP_FRAGMENT_ERROR /* TCP connection error - IP fragmentation error */, 1565 ISCSI_CONN_ERROR_PROTOCOL_ERR_AHS_LEN /* iSCSI connection error - invalid AHS length (Target only) */, 1566 ISCSI_CONN_ERROR_PROTOCOL_ERR_AHS_TYPE /* iSCSI connection error - invalid AHS type (Target only) */, 1567 ISCSI_CONN_ERROR_PROTOCOL_ERR_ITT_OUT_OF_RANGE /* iSCSI connection error - invalid ITT */, 1568 ISCSI_CONN_ERROR_PROTOCOL_ERR_TTT_OUT_OF_RANGE /* iSCSI connection error - invalid TTT (Target only) */, 1569 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SEG_LEN_EXCEEDS_PDU_SIZE /* iSCSI connection error - PDU data_seg_len > max receive pdu size */, 1570 ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_OPCODE /* iSCSI connection error - invalid PDU opcode */, 1571 ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_OPCODE_BEFORE_UPDATE /* iSCSI connection error - invalid PDU opcode before update ramrod (Option 2 only) */, 1572 ISCSI_CONN_ERROR_UNVALID_NOPIN_DSL /* iSCSI connection error - NOPIN dsl > 0 and ITT = 0xffffffff (Initiator only) */, 1573 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_CARRIES_NO_DATA /* iSCSI connection error - R2T dsl > 0 (Initiator only) */, 1574 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SN /* iSCSI connection error - DATA-SN error */, 1575 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_IN_TTT /* iSCSI connection error - DATA-IN TTT error (Initiator only) */, 1576 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_OUT_ITT /* iSCSI connection error - DATA-OUT ITT error (Target only) */, 1577 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_TTT /* iSCSI connection error - R2T TTT error (Initiator only) */, 1578 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_BUFFER_OFFSET /* iSCSI connection error - R2T buffer offset error (Initiator only) */, 1579 ISCSI_CONN_ERROR_PROTOCOL_ERR_BUFFER_OFFSET_OOO /* iSCSI connection error - DATA PDU buffer offset error */, 1580 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_SN /* iSCSI connection error - R2T SN error (Initiator only) */, 1581 ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_0 /* iSCSI connection error - R2T desired data transfer length = 0 (Initiator only) */, 1582 ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_1 /* iSCSI connection error - R2T desired data transfer length less then max burst size (Initiator only) */, 1583 ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_2 /* iSCSI connection error - R2T desired data transfer length + buffer offset > task size (Initiator only) */, 1584 ISCSI_CONN_ERROR_PROTOCOL_ERR_LUN /* iSCSI connection error - R2T unvalid LUN (Initiator only) */, 1585 ISCSI_CONN_ERROR_PROTOCOL_ERR_F_BIT_ZERO /* iSCSI connection error - All data has been already received, however it is not the end of sequence (Initiator only) */, 1586 ISCSI_CONN_ERROR_PROTOCOL_ERR_F_BIT_ZERO_S_BIT_ONE /* iSCSI connection error - S-bit and final bit = 1 (Initiator only) */, 1587 ISCSI_CONN_ERROR_PROTOCOL_ERR_EXP_STAT_SN /* iSCSI connection error - STAT SN error (Initiator only) */, 1588 ISCSI_CONN_ERROR_PROTOCOL_ERR_DSL_NOT_ZERO /* iSCSI connection error - TMF or LOGOUT PDUs dsl > 0 (Initiator only) */, 1589 ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_DSL /* iSCSI connection error - CMD PDU dsl>0 while immediate data is disabled (Target only) */, 1590 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SEG_LEN_TOO_BIG /* iSCSI connection error - Data In overrun (Initiator only) */, 1591 ISCSI_CONN_ERROR_PROTOCOL_ERR_OUTSTANDING_R2T_COUNT /* iSCSI connection error - >1 outstanding R2T (Initiator only) */, 1592 ISCSI_CONN_ERROR_PROTOCOL_ERR_DIF_TX /* iSCSI connection error - DIF Tx error + DIF error drop is enabled (Target only) */, 1593 ISCSI_CONN_ERROR_SENSE_DATA_LENGTH /* iSCSI connection error - Sense data length > 256 (Initiator only) */, 1594 ISCSI_CONN_ERROR_DATA_PLACEMENT_ERROR /* iSCSI connection error - Data placement error */, 1595 ISCSI_CONN_ERROR_INVALID_ITT /* iSCSI connection error - Invalid ITT (Target Only) */, 1596 ISCSI_ERROR_UNKNOWN /* iSCSI connection error */, 1597 MAX_ISCSI_ERROR_TYPES 1598 }; 1599 1600 /* 1601 * iSCSI Ramrod Command IDs 1602 */ 1603 enum iscsi_ramrod_cmd_id 1604 { 1605 ISCSI_RAMROD_CMD_ID_UNUSED=0, 1606 ISCSI_RAMROD_CMD_ID_INIT_FUNC=1 /* iSCSI function init Ramrod */, 1607 ISCSI_RAMROD_CMD_ID_DESTROY_FUNC=2 /* iSCSI function destroy Ramrod */, 1608 ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN=3 /* iSCSI connection offload Ramrod */, 1609 ISCSI_RAMROD_CMD_ID_UPDATE_CONN=4 /* iSCSI connection update Ramrod */, 1610 ISCSI_RAMROD_CMD_ID_TERMINATION_CONN=5 /* iSCSI connection offload Ramrod. Command ID known only to FW and VBD */, 1611 ISCSI_RAMROD_CMD_ID_CLEAR_SQ=6 /* iSCSI connection clear-sq ramrod. */, 1612 ISCSI_RAMROD_CMD_ID_MAC_UPDATE=7 /* iSCSI connection update MAC address ramrod. */, 1613 ISCSI_RAMROD_CMD_ID_CONN_STATS=8 /* iSCSI collect connection statistics ramrod. */, 1614 MAX_ISCSI_RAMROD_CMD_ID 1615 }; 1616 1617 /* 1618 * ISCSI connection termination request 1619 */ 1620 struct iscsi_spe_conn_mac_update 1621 { 1622 struct iscsi_slow_path_hdr hdr /* spe message header. */; 1623 __le16 conn_id /* ISCSI Connection ID. */; 1624 __le32 fw_cid /* Context ID (cid) of the connection. */; 1625 __le16 remote_mac_addr_lo /* new remote mac address lo */; 1626 __le16 remote_mac_addr_mid /* new remote mac address mid */; 1627 __le16 remote_mac_addr_hi /* new remote mac address hi */; 1628 u8 reserved0[2]; 1629 }; 1630 1631 /* 1632 * ISCSI and TCP connection(Option 1) offload params passed by driver to FW in ISCSI offload ramrod 1633 */ 1634 struct iscsi_spe_conn_offload 1635 { 1636 struct iscsi_slow_path_hdr hdr /* spe message header. */; 1637 __le16 conn_id /* ISCSI Connection ID. */; 1638 __le32 fw_cid; 1639 struct iscsi_conn_offload_params iscsi /* iSCSI session offload params */; 1640 struct tcp_offload_params tcp /* iSCSI session offload params */; 1641 }; 1642 1643 /* 1644 * ISCSI and TCP connection(Option 2) offload params passed by driver to FW in ISCSI offload ramrod 1645 */ 1646 struct iscsi_spe_conn_offload_option2 1647 { 1648 struct iscsi_slow_path_hdr hdr /* spe message header. */; 1649 __le16 conn_id /* ISCSI Connection ID. */; 1650 __le32 fw_cid; 1651 struct iscsi_conn_offload_params iscsi /* iSCSI session offload params */; 1652 struct tcp_offload_params_opt2 tcp /* iSCSI session offload params */; 1653 }; 1654 1655 /* 1656 * ISCSI collect connection statistics request 1657 */ 1658 struct iscsi_spe_conn_statistics 1659 { 1660 struct iscsi_slow_path_hdr hdr /* spe message header. */; 1661 __le16 conn_id /* ISCSI Connection ID. */; 1662 __le32 fw_cid /* Context ID (cid) of the connection. */; 1663 u8 reset_stats /* Indicates whether to reset the connection statistics. */; 1664 u8 reserved0[7]; 1665 struct regpair stats_cnts_addr /* cmdq and unsolicited counters termination params */; 1666 }; 1667 1668 /* 1669 * ISCSI connection termination request 1670 */ 1671 struct iscsi_spe_conn_termination 1672 { 1673 struct iscsi_slow_path_hdr hdr /* spe message header. */; 1674 __le16 conn_id /* ISCSI Connection ID. */; 1675 __le32 fw_cid /* Context ID (cid) of the connection. */; 1676 u8 abortive /* Mark termination as abort(reset) flow */; 1677 u8 reserved0[7]; 1678 struct regpair queue_cnts_addr /* cmdq and unsolicited counters termination params */; 1679 struct regpair query_params_addr /* query_params_ptr */; 1680 }; 1681 1682 /* 1683 * iSCSI firmware function destroy parameters 1684 */ 1685 struct iscsi_spe_func_dstry 1686 { 1687 struct iscsi_slow_path_hdr hdr /* spe message header. */; 1688 __le16 reserved0; 1689 __le32 reserved1; 1690 }; 1691 1692 /* 1693 * iSCSI firmware function init parameters 1694 */ 1695 struct iscsi_spe_func_init 1696 { 1697 struct iscsi_slow_path_hdr hdr /* spe message header. */; 1698 __le16 half_way_close_timeout /* Half Way Close Timeout in Option 2 Close */; 1699 u8 num_sq_pages_in_ring /* Number of entries in the SQ PBL. Provided by driver at function init spe */; 1700 u8 num_r2tq_pages_in_ring /* Number of entries in the R2TQ PBL. Provided by driver at function init spe */; 1701 u8 num_uhq_pages_in_ring /* Number of entries in the uHQ PBL (xHQ entries is X2). Provided by driver at function init spe */; 1702 u8 ll2_rx_queue_id /* Queue ID of the Light-L2 Rx Queue */; 1703 u8 flags; 1704 #define ISCSI_SPE_FUNC_INIT_COUNTERS_EN_MASK 0x1 /* Enable counters - function and connection counters */ 1705 #define ISCSI_SPE_FUNC_INIT_COUNTERS_EN_SHIFT 0 1706 #define ISCSI_SPE_FUNC_INIT_RESERVED0_MASK 0x7F /* reserved */ 1707 #define ISCSI_SPE_FUNC_INIT_RESERVED0_SHIFT 1 1708 struct iscsi_debug_modes debug_mode /* Use iscsi_debug_mode flags */; 1709 __le16 reserved1; 1710 __le32 reserved2; 1711 struct scsi_init_func_params func_params /* Common SCSI init params passed by driver to FW in function init ramrod */; 1712 struct scsi_init_func_queues q_params /* SCSI RQ/CQ firmware function init parameters */; 1713 }; 1714 1715 /* 1716 * iSCSI task type 1717 */ 1718 enum iscsi_task_type 1719 { 1720 ISCSI_TASK_TYPE_INITIATOR_WRITE, 1721 ISCSI_TASK_TYPE_INITIATOR_READ, 1722 ISCSI_TASK_TYPE_MIDPATH, 1723 ISCSI_TASK_TYPE_UNSOLIC, 1724 ISCSI_TASK_TYPE_EXCHCLEANUP, 1725 ISCSI_TASK_TYPE_IRRELEVANT, 1726 ISCSI_TASK_TYPE_TARGET_WRITE, 1727 ISCSI_TASK_TYPE_TARGET_READ, 1728 ISCSI_TASK_TYPE_TARGET_RESPONSE, 1729 ISCSI_TASK_TYPE_LOGIN_RESPONSE, 1730 ISCSI_TASK_TYPE_TARGET_IMM_W_DIF, 1731 MAX_ISCSI_TASK_TYPE 1732 }; 1733 1734 /* 1735 * iSCSI DesiredDataTransferLength/ttt union 1736 */ 1737 union iscsi_ttt_txlen_union 1738 { 1739 __le32 desired_tx_len /* desired data transfer length */; 1740 __le32 ttt /* target transfer tag */; 1741 }; 1742 1743 /* 1744 * iSCSI uHQ element 1745 */ 1746 struct iscsi_uhqe 1747 { 1748 __le32 reg1; 1749 #define ISCSI_UHQE_PDU_PAYLOAD_LEN_MASK 0xFFFFF /* iSCSI payload (doesnt include padding or digest) or AHS length */ 1750 #define ISCSI_UHQE_PDU_PAYLOAD_LEN_SHIFT 0 1751 #define ISCSI_UHQE_LOCAL_COMP_MASK 0x1 /* local compleiton flag */ 1752 #define ISCSI_UHQE_LOCAL_COMP_SHIFT 20 1753 #define ISCSI_UHQE_TOGGLE_BIT_MASK 0x1 /* toggle bit to protect from uHQ full */ 1754 #define ISCSI_UHQE_TOGGLE_BIT_SHIFT 21 1755 #define ISCSI_UHQE_PURE_PAYLOAD_MASK 0x1 /* indicates whether pdu_payload_len contains pure payload length. if not, pdu_payload_len is AHS length */ 1756 #define ISCSI_UHQE_PURE_PAYLOAD_SHIFT 22 1757 #define ISCSI_UHQE_LOGIN_RESPONSE_PDU_MASK 0x1 /* indicates login pdu */ 1758 #define ISCSI_UHQE_LOGIN_RESPONSE_PDU_SHIFT 23 1759 #define ISCSI_UHQE_TASK_ID_HI_MASK 0xFF /* most significant byte of task_id */ 1760 #define ISCSI_UHQE_TASK_ID_HI_SHIFT 24 1761 __le32 reg2; 1762 #define ISCSI_UHQE_BUFFER_OFFSET_MASK 0xFFFFFF /* absolute offset in task */ 1763 #define ISCSI_UHQE_BUFFER_OFFSET_SHIFT 0 1764 #define ISCSI_UHQE_TASK_ID_LO_MASK 0xFF /* least significant byte of task_id */ 1765 #define ISCSI_UHQE_TASK_ID_LO_SHIFT 24 1766 }; 1767 1768 /* 1769 * iSCSI WQ element 1770 */ 1771 struct iscsi_wqe 1772 { 1773 __le16 task_id /* The task identifier (itt) includes all the relevant information required for the task processing */; 1774 u8 flags; 1775 #define ISCSI_WQE_WQE_TYPE_MASK 0x7 /* Wqe type [use iscsi_wqe_type] */ 1776 #define ISCSI_WQE_WQE_TYPE_SHIFT 0 1777 #define ISCSI_WQE_NUM_SGES_MASK 0xF /* The driver will give a hint about sizes of SGEs for better credits evaluation at Xstorm */ 1778 #define ISCSI_WQE_NUM_SGES_SHIFT 3 1779 #define ISCSI_WQE_RESPONSE_MASK 0x1 /* 1 if this Wqe triggers a response and advances stat_sn, 0 otherwise */ 1780 #define ISCSI_WQE_RESPONSE_SHIFT 7 1781 struct iscsi_dif_flags prot_flags /* Task data-integrity flags (protection) */; 1782 __le32 contlen_cdbsize; 1783 #define ISCSI_WQE_CONT_LEN_MASK 0xFFFFFF /* expected/desired data transfer length */ 1784 #define ISCSI_WQE_CONT_LEN_SHIFT 0 1785 #define ISCSI_WQE_CDB_SIZE_MASK 0xFF /* Initiator mode only: equals SCSI command CDB size if extended CDB is used, otherwise equals zero. */ 1786 #define ISCSI_WQE_CDB_SIZE_SHIFT 24 1787 }; 1788 1789 /* 1790 * iSCSI wqe type 1791 */ 1792 enum iscsi_wqe_type 1793 { 1794 ISCSI_WQE_TYPE_NORMAL /* iSCSI WQE type normal. excluding status bit in target mode. */, 1795 ISCSI_WQE_TYPE_TASK_CLEANUP /* iSCSI WQE type task cleanup */, 1796 ISCSI_WQE_TYPE_MIDDLE_PATH /* iSCSI WQE type middle path */, 1797 ISCSI_WQE_TYPE_LOGIN /* iSCSI WQE type login */, 1798 ISCSI_WQE_TYPE_FIRST_R2T_CONT /* iSCSI WQE type First Write Continuation (Target) */, 1799 ISCSI_WQE_TYPE_NONFIRST_R2T_CONT /* iSCSI WQE type Non-First Write Continuation (Target) */, 1800 ISCSI_WQE_TYPE_RESPONSE /* iSCSI WQE type SCSI response */, 1801 MAX_ISCSI_WQE_TYPE 1802 }; 1803 1804 /* 1805 * iSCSI xHQ element 1806 */ 1807 struct iscsi_xhqe 1808 { 1809 union iscsi_ttt_txlen_union ttt_or_txlen /* iSCSI DesiredDataTransferLength/ttt union */; 1810 __le32 exp_stat_sn /* expected StatSn */; 1811 struct iscsi_dif_flags prot_flags /* Task data-integrity flags (protection) */; 1812 u8 total_ahs_length /* Initiator mode only: Total AHS Length. greater than zero if and only if PDU is SCSI command and CDB > 16 */; 1813 u8 opcode /* Type opcode for command PDU */; 1814 u8 flags; 1815 #define ISCSI_XHQE_FINAL_MASK 0x1 /* The Final(F) for this PDU */ 1816 #define ISCSI_XHQE_FINAL_SHIFT 0 1817 #define ISCSI_XHQE_STATUS_BIT_MASK 0x1 /* Whether this PDU is Data-In PDU with status_bit = 1 */ 1818 #define ISCSI_XHQE_STATUS_BIT_SHIFT 1 1819 #define ISCSI_XHQE_NUM_SGES_MASK 0xF /* If Predicted IO equals Min(8, number of SGEs in SGL), otherwise equals 0 */ 1820 #define ISCSI_XHQE_NUM_SGES_SHIFT 2 1821 #define ISCSI_XHQE_RESERVED0_MASK 0x3 /* reserved */ 1822 #define ISCSI_XHQE_RESERVED0_SHIFT 6 1823 union iscsi_seq_num seq_num /* R2T/DataSN sequence number */; 1824 __le16 reserved1; 1825 }; 1826 1827 /* 1828 * Per PF iSCSI receive path statistics - mStorm RAM structure 1829 */ 1830 struct mstorm_iscsi_stats_drv 1831 { 1832 struct regpair iscsi_rx_dropped_PDUs_task_not_valid /* Number of Rx silently dropped PDUs due to task not valid */; 1833 struct regpair iscsi_rx_dup_ack_cnt /* Received Dup-ACKs - after 3 dup ack, the counter doesnt count the same dup ack */; 1834 }; 1835 1836 /* 1837 * Per PF iSCSI transmit path statistics - pStorm RAM structure 1838 */ 1839 struct pstorm_iscsi_stats_drv 1840 { 1841 struct regpair iscsi_tx_bytes_cnt /* Counts the number of tx bytes that were transmitted */; 1842 struct regpair iscsi_tx_packet_cnt /* Counts the number of tx packets that were transmitted */; 1843 }; 1844 1845 /* 1846 * Per PF iSCSI receive path statistics - tStorm RAM structure 1847 */ 1848 struct tstorm_iscsi_stats_drv 1849 { 1850 struct regpair iscsi_rx_bytes_cnt /* Counts the number of rx bytes that were received */; 1851 struct regpair iscsi_rx_packet_cnt /* Counts the number of rx packets that were received */; 1852 struct regpair iscsi_rx_new_ooo_isle_events_cnt /* Counts the number of new out-of-order isle event */; 1853 struct regpair iscsi_rx_tcp_payload_bytes_cnt /* Received In-Order TCP Payload Bytes */; 1854 struct regpair iscsi_rx_tcp_pkt_cnt /* Received In-Order TCP Packets */; 1855 struct regpair iscsi_rx_pure_ack_cnt /* Received Pure-ACKs */; 1856 __le32 iscsi_cmdq_threshold_cnt /* Counts the number of times elements in cmdQ reached threshold */; 1857 __le32 iscsi_rq_threshold_cnt /* Counts the number of times elements in RQQ reached threshold */; 1858 __le32 iscsi_immq_threshold_cnt /* Counts the number of times elements in immQ reached threshold */; 1859 }; 1860 1861 /* 1862 * Per PF iSCSI receive path statistics - uStorm RAM structure 1863 */ 1864 struct ustorm_iscsi_stats_drv 1865 { 1866 struct regpair iscsi_rx_data_pdu_cnt /* Number of data PDUs that were received */; 1867 struct regpair iscsi_rx_r2t_pdu_cnt /* Number of R2T PDUs that were received */; 1868 struct regpair iscsi_rx_total_pdu_cnt /* Number of total PDUs that were received */; 1869 }; 1870 1871 /* 1872 * Per PF iSCSI transmit path statistics - xStorm RAM structure 1873 */ 1874 struct xstorm_iscsi_stats_drv 1875 { 1876 struct regpair iscsi_tx_go_to_slow_start_event_cnt /* Number of times slow start event occurred */; 1877 struct regpair iscsi_tx_fast_retransmit_event_cnt /* Number of times fast retransmit event occurred */; 1878 struct regpair iscsi_tx_pure_ack_cnt /* Transmitted Pure-ACKs */; 1879 struct regpair iscsi_tx_delayed_ack_cnt /* Transmitted Delayed ACKs */; 1880 }; 1881 1882 /* 1883 * Per PF iSCSI transmit path statistics - yStorm RAM structure 1884 */ 1885 struct ystorm_iscsi_stats_drv 1886 { 1887 struct regpair iscsi_tx_data_pdu_cnt /* Number of data PDUs that were transmitted */; 1888 struct regpair iscsi_tx_r2t_pdu_cnt /* Number of R2T PDUs that were transmitted */; 1889 struct regpair iscsi_tx_total_pdu_cnt /* Number of total PDUs that were transmitted */; 1890 struct regpair iscsi_tx_tcp_payload_bytes_cnt /* Transmitted In-Order TCP Payload Bytes */; 1891 struct regpair iscsi_tx_tcp_pkt_cnt /* Transmitted In-Order TCP Packets */; 1892 }; 1893 1894 struct e4_tstorm_iscsi_task_ag_ctx 1895 { 1896 u8 byte0 /* cdu_validation */; 1897 u8 byte1 /* state */; 1898 __le16 word0 /* icid */; 1899 u8 flags0; 1900 #define E4_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF /* connection_type */ 1901 #define E4_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0 1902 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 /* exist_in_qm0 */ 1903 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4 1904 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */ 1905 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5 1906 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT2_MASK 0x1 /* bit2 */ 1907 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT2_SHIFT 6 1908 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1 /* bit3 */ 1909 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7 1910 u8 flags1; 1911 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 /* bit4 */ 1912 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0 1913 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT5_MASK 0x1 /* bit5 */ 1914 #define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT5_SHIFT 1 1915 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 /* timer0cf */ 1916 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 2 1917 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* timer1cf */ 1918 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 4 1919 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 /* timer2cf */ 1920 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 6 1921 u8 flags2; 1922 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 /* timer_stop_all */ 1923 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 0 1924 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4_MASK 0x3 /* cf4 */ 1925 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4_SHIFT 2 1926 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5_MASK 0x3 /* cf5 */ 1927 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5_SHIFT 4 1928 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6_MASK 0x3 /* cf6 */ 1929 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6_SHIFT 6 1930 u8 flags3; 1931 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7_MASK 0x3 /* cf7 */ 1932 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7_SHIFT 0 1933 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 /* cf0en */ 1934 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 2 1935 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */ 1936 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 3 1937 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 /* cf2en */ 1938 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 4 1939 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 /* cf3en */ 1940 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 5 1941 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_MASK 0x1 /* cf4en */ 1942 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_SHIFT 6 1943 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_MASK 0x1 /* cf5en */ 1944 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_SHIFT 7 1945 u8 flags4; 1946 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_MASK 0x1 /* cf6en */ 1947 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_SHIFT 0 1948 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_MASK 0x1 /* cf7en */ 1949 #define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_SHIFT 1 1950 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */ 1951 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 2 1952 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */ 1953 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 3 1954 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */ 1955 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 4 1956 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */ 1957 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 5 1958 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */ 1959 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 6 1960 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */ 1961 #define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 7 1962 u8 byte2 /* byte2 */; 1963 __le16 word1 /* word1 */; 1964 __le32 reg0 /* reg0 */; 1965 u8 byte3 /* byte3 */; 1966 u8 byte4 /* byte4 */; 1967 __le16 word2 /* word2 */; 1968 __le16 word3 /* word3 */; 1969 __le16 word4 /* word4 */; 1970 __le32 reg1 /* reg1 */; 1971 __le32 reg2 /* reg2 */; 1972 }; 1973 1974 struct e5_tstorm_iscsi_task_ag_ctx 1975 { 1976 u8 byte0 /* cdu_validation */; 1977 u8 byte1 /* state_and_core_id */; 1978 __le16 word0 /* icid */; 1979 u8 flags0; 1980 #define E5_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF /* connection_type */ 1981 #define E5_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0 1982 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 /* exist_in_qm0 */ 1983 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4 1984 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */ 1985 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5 1986 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT2_MASK 0x1 /* bit2 */ 1987 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT2_SHIFT 6 1988 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1 /* bit3 */ 1989 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7 1990 u8 flags1; 1991 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 /* bit4 */ 1992 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0 1993 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT5_MASK 0x1 /* bit5 */ 1994 #define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT5_SHIFT 1 1995 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 /* timer0cf */ 1996 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 2 1997 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* timer1cf */ 1998 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 4 1999 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 /* timer2cf */ 2000 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 6 2001 u8 flags2; 2002 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 /* timer_stop_all */ 2003 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 0 2004 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF4_MASK 0x3 /* cf4 */ 2005 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF4_SHIFT 2 2006 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF5_MASK 0x3 /* cf5 */ 2007 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF5_SHIFT 4 2008 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF6_MASK 0x3 /* cf6 */ 2009 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF6_SHIFT 6 2010 u8 flags3; 2011 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF7_MASK 0x3 /* cf7 */ 2012 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF7_SHIFT 0 2013 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 /* cf0en */ 2014 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 2 2015 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */ 2016 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 3 2017 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 /* cf2en */ 2018 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 4 2019 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 /* cf3en */ 2020 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 5 2021 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_MASK 0x1 /* cf4en */ 2022 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_SHIFT 6 2023 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_MASK 0x1 /* cf5en */ 2024 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_SHIFT 7 2025 u8 flags4; 2026 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_MASK 0x1 /* cf6en */ 2027 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_SHIFT 0 2028 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_MASK 0x1 /* cf7en */ 2029 #define E5_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_SHIFT 1 2030 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */ 2031 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 2 2032 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */ 2033 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 3 2034 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */ 2035 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 4 2036 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */ 2037 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 5 2038 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */ 2039 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 6 2040 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */ 2041 #define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 7 2042 u8 byte2 /* byte2 */; 2043 __le16 word1 /* word1 */; 2044 __le32 reg0 /* reg0 */; 2045 u8 byte3 /* regpair0 */; 2046 u8 byte4 /* byte4 */; 2047 __le16 word2 /* word2 */; 2048 __le16 word3 /* word3 */; 2049 __le16 word4 /* word4 */; 2050 __le32 reg1 /* regpair1 */; 2051 __le32 reg2 /* reg2 */; 2052 }; 2053 2054 /* 2055 * iSCSI doorbell data 2056 */ 2057 struct iscsi_db_data 2058 { 2059 u8 params; 2060 #define ISCSI_DB_DATA_DEST_MASK 0x3 /* destination of doorbell (use enum db_dest) */ 2061 #define ISCSI_DB_DATA_DEST_SHIFT 0 2062 #define ISCSI_DB_DATA_AGG_CMD_MASK 0x3 /* aggregative command to CM (use enum db_agg_cmd_sel) */ 2063 #define ISCSI_DB_DATA_AGG_CMD_SHIFT 2 2064 #define ISCSI_DB_DATA_BYPASS_EN_MASK 0x1 /* enable QM bypass */ 2065 #define ISCSI_DB_DATA_BYPASS_EN_SHIFT 4 2066 #define ISCSI_DB_DATA_RESERVED_MASK 0x1 2067 #define ISCSI_DB_DATA_RESERVED_SHIFT 5 2068 #define ISCSI_DB_DATA_AGG_VAL_SEL_MASK 0x3 /* aggregative value selection */ 2069 #define ISCSI_DB_DATA_AGG_VAL_SEL_SHIFT 6 2070 u8 agg_flags /* bit for every DQ counter flags in CM context that DQ can increment */; 2071 __le16 sq_prod; 2072 }; 2073 2074 #endif /* __ISCSI_COMMON__ */ 2075