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