1/* 2 * Copyright (c) 2017-2018 Cavium, Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 * 27 * $FreeBSD: stable/11/sys/dev/qlnx/qlnxe/iscsi_common.h 337517 2018-08-09 01:17:35Z davidcs $ 28 * 29 */ 30 31 32#ifndef __ISCSI_COMMON__ 33#define __ISCSI_COMMON__ 34/**********************/ 35/* ISCSI FW CONSTANTS */ 36/**********************/ 37 38/* iSCSI HSI constants */ 39#define ISCSI_DEFAULT_MTU (1500) 40 41/* KWQ (kernel work queue) layer codes */ 42#define ISCSI_SLOW_PATH_LAYER_CODE (6) 43 44/* iSCSI parameter defaults */ 45#define ISCSI_DEFAULT_HEADER_DIGEST (0) 46#define ISCSI_DEFAULT_DATA_DIGEST (0) 47#define ISCSI_DEFAULT_INITIAL_R2T (1) 48#define ISCSI_DEFAULT_IMMEDIATE_DATA (1) 49#define ISCSI_DEFAULT_MAX_PDU_LENGTH (0x2000) 50#define ISCSI_DEFAULT_FIRST_BURST_LENGTH (0x10000) 51#define ISCSI_DEFAULT_MAX_BURST_LENGTH (0x40000) 52#define ISCSI_DEFAULT_MAX_OUTSTANDING_R2T (1) 53 54/* iSCSI parameter limits */ 55#define ISCSI_MIN_VAL_MAX_PDU_LENGTH (0x200) 56#define ISCSI_MAX_VAL_MAX_PDU_LENGTH (0xffffff) 57#define ISCSI_MIN_VAL_BURST_LENGTH (0x200) 58#define ISCSI_MAX_VAL_BURST_LENGTH (0xffffff) 59#define ISCSI_MIN_VAL_MAX_OUTSTANDING_R2T (1) 60#define ISCSI_MAX_VAL_MAX_OUTSTANDING_R2T (0xff) // 0x10000 according to RFC 61 62#define ISCSI_AHS_CNTL_SIZE 4 63 64#define ISCSI_WQE_NUM_SGES_SLOWIO (0xf) 65 66/* iSCSI reserved params */ 67#define ISCSI_ITT_ALL_ONES (0xffffffff) 68#define ISCSI_TTT_ALL_ONES (0xffffffff) 69 70#define ISCSI_OPTION_1_OFF_CHIP_TCP 1 71#define ISCSI_OPTION_2_ON_CHIP_TCP 2 72 73#define ISCSI_INITIATOR_MODE 0 74#define ISCSI_TARGET_MODE 1 75 76 77/* iSCSI request op codes */ 78#define ISCSI_OPCODE_NOP_OUT (0) 79#define ISCSI_OPCODE_SCSI_CMD (1) 80#define ISCSI_OPCODE_TMF_REQUEST (2) 81#define ISCSI_OPCODE_LOGIN_REQUEST (3) 82#define ISCSI_OPCODE_TEXT_REQUEST (4) 83#define ISCSI_OPCODE_DATA_OUT (5) 84#define ISCSI_OPCODE_LOGOUT_REQUEST (6) 85 86/* iSCSI response/messages op codes */ 87#define ISCSI_OPCODE_NOP_IN (0x20) 88#define ISCSI_OPCODE_SCSI_RESPONSE (0x21) 89#define ISCSI_OPCODE_TMF_RESPONSE (0x22) 90#define ISCSI_OPCODE_LOGIN_RESPONSE (0x23) 91#define ISCSI_OPCODE_TEXT_RESPONSE (0x24) 92#define ISCSI_OPCODE_DATA_IN (0x25) 93#define ISCSI_OPCODE_LOGOUT_RESPONSE (0x26) 94#define ISCSI_OPCODE_R2T (0x31) 95#define ISCSI_OPCODE_ASYNC_MSG (0x32) 96#define ISCSI_OPCODE_REJECT (0x3f) 97 98/* iSCSI stages */ 99#define ISCSI_STAGE_SECURITY_NEGOTIATION (0) 100#define ISCSI_STAGE_LOGIN_OPERATIONAL_NEGOTIATION (1) 101#define ISCSI_STAGE_FULL_FEATURE_PHASE (3) 102 103/* iSCSI CQE errors */ 104#define CQE_ERROR_BITMAP_DATA_DIGEST (0x08) 105#define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN (0x10) 106#define CQE_ERROR_BITMAP_DATA_TRUNCATED (0x20) 107 108 109/* 110 * Union of data bd_opaque/ tq_tid 111 */ 112union bd_opaque_tq_union 113{ 114 __le16 bd_opaque /* BDs opaque data */; 115 __le16 tq_tid /* Immediate Data with DIF TQe TID */; 116}; 117 118 119/* 120 * ISCSI SGL entry 121 */ 122struct cqe_error_bitmap 123{ 124 u8 cqe_error_status_bits; 125#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 */ 126#define CQE_ERROR_BITMAP_DIF_ERR_BITS_SHIFT 0 127#define CQE_ERROR_BITMAP_DATA_DIGEST_ERR_MASK 0x1 /* Mark task with data digest error (1 bit) */ 128#define CQE_ERROR_BITMAP_DATA_DIGEST_ERR_SHIFT 3 129#define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN_MASK 0x1 /* Mark receive on invalid connection */ 130#define CQE_ERROR_BITMAP_RCV_ON_INVALID_CONN_SHIFT 4 131#define CQE_ERROR_BITMAP_DATA_TRUNCATED_ERR_MASK 0x1 /* Target Mode - Mark middle task error, data truncated */ 132#define CQE_ERROR_BITMAP_DATA_TRUNCATED_ERR_SHIFT 5 133#define CQE_ERROR_BITMAP_UNDER_RUN_ERR_MASK 0x1 134#define CQE_ERROR_BITMAP_UNDER_RUN_ERR_SHIFT 6 135#define CQE_ERROR_BITMAP_RESERVED2_MASK 0x1 136#define CQE_ERROR_BITMAP_RESERVED2_SHIFT 7 137}; 138 139 140union cqe_error_status 141{ 142 u8 error_status /* all error bits as uint8 */; 143 struct cqe_error_bitmap error_bits /* cqe errors bitmap */; 144}; 145 146 147/* 148 * iSCSI Login Response PDU header 149 */ 150struct data_hdr 151{ 152 __le32 data[12] /* iscsi header data */; 153}; 154 155 156struct lun_mapper_addr_reserved 157{ 158 struct regpair lun_mapper_addr /* Lun mapper address */; 159 u8 reserved0[8]; 160}; 161 162/* 163 * rdif conetxt for dif on immediate 164 */ 165struct dif_on_immediate_params 166{ 167 __le32 initial_ref_tag; 168 __le16 application_tag; 169 __le16 application_tag_mask; 170 __le16 flags1; 171#define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_GUARD_MASK 0x1 172#define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_GUARD_SHIFT 0 173#define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_APP_TAG_MASK 0x1 174#define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_APP_TAG_SHIFT 1 175#define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_REF_TAG_MASK 0x1 176#define DIF_ON_IMMEDIATE_PARAMS_VALIDATE_REF_TAG_SHIFT 2 177#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_GUARD_MASK 0x1 178#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_GUARD_SHIFT 3 179#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_MASK 0x1 180#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_SHIFT 4 181#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_REF_TAG_MASK 0x1 182#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_REF_TAG_SHIFT 5 183#define DIF_ON_IMMEDIATE_PARAMS_INTERVAL_SIZE_MASK 0x1 /* 0=512B, 1=4KB */ 184#define DIF_ON_IMMEDIATE_PARAMS_INTERVAL_SIZE_SHIFT 6 185#define DIF_ON_IMMEDIATE_PARAMS_NETWORK_INTERFACE_MASK 0x1 /* 0=None, 1=DIF */ 186#define DIF_ON_IMMEDIATE_PARAMS_NETWORK_INTERFACE_SHIFT 7 187#define DIF_ON_IMMEDIATE_PARAMS_HOST_INTERFACE_MASK 0x3 /* 0=None, 1=DIF, 2=DIX */ 188#define DIF_ON_IMMEDIATE_PARAMS_HOST_INTERFACE_SHIFT 8 189#define DIF_ON_IMMEDIATE_PARAMS_REF_TAG_MASK_MASK 0xF /* mask for refernce tag handling */ 190#define DIF_ON_IMMEDIATE_PARAMS_REF_TAG_MASK_SHIFT 10 191#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_WITH_MASK_MASK 0x1 /* Forward application tag with mask */ 192#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_APP_TAG_WITH_MASK_SHIFT 14 193#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_REF_TAG_WITH_MASK_MASK 0x1 /* Forward reference tag with mask */ 194#define DIF_ON_IMMEDIATE_PARAMS_FORWARD_REF_TAG_WITH_MASK_SHIFT 15 195 u8 flags0; 196#define DIF_ON_IMMEDIATE_PARAMS_RESERVED_MASK 0x1 197#define DIF_ON_IMMEDIATE_PARAMS_RESERVED_SHIFT 0 198#define DIF_ON_IMMEDIATE_PARAMS_IGNORE_APP_TAG_MASK 0x1 199#define DIF_ON_IMMEDIATE_PARAMS_IGNORE_APP_TAG_SHIFT 1 200#define DIF_ON_IMMEDIATE_PARAMS_INITIAL_REF_TAG_IS_VALID_MASK 0x1 201#define DIF_ON_IMMEDIATE_PARAMS_INITIAL_REF_TAG_IS_VALID_SHIFT 2 202#define DIF_ON_IMMEDIATE_PARAMS_HOST_GUARD_TYPE_MASK 0x1 /* 0 = IP checksum, 1 = CRC */ 203#define DIF_ON_IMMEDIATE_PARAMS_HOST_GUARD_TYPE_SHIFT 3 204#define DIF_ON_IMMEDIATE_PARAMS_PROTECTION_TYPE_MASK 0x3 /* 1/2/3 - Protection Type */ 205#define DIF_ON_IMMEDIATE_PARAMS_PROTECTION_TYPE_SHIFT 4 206#define DIF_ON_IMMEDIATE_PARAMS_CRC_SEED_MASK 0x1 /* 0=0x0000, 1=0xffff */ 207#define DIF_ON_IMMEDIATE_PARAMS_CRC_SEED_SHIFT 6 208#define DIF_ON_IMMEDIATE_PARAMS_KEEP_REF_TAG_CONST_MASK 0x1 /* Keep reference tag constant */ 209#define DIF_ON_IMMEDIATE_PARAMS_KEEP_REF_TAG_CONST_SHIFT 7 210 u8 reserved_zero[5]; 211}; 212 213/* 214 * iSCSI dif on immediate mode attributes union 215 */ 216union dif_configuration_params 217{ 218 struct lun_mapper_addr_reserved lun_mapper_address /* lun mapper address */; 219 struct dif_on_immediate_params def_dif_conf /* default dif on immediate rdif configuration */; 220}; 221 222 223 224/* 225 * Union of data/r2t sequence number 226 */ 227union iscsi_seq_num 228{ 229 __le16 data_sn /* data-in sequence number */; 230 __le16 r2t_sn /* r2t pdu sequence number */; 231}; 232 233/* 234 * iSCSI DIF flags 235 */ 236struct iscsi_dif_flags 237{ 238 u8 flags; 239#define ISCSI_DIF_FLAGS_PROT_INTERVAL_SIZE_LOG_MASK 0xF /* Protection log interval (9=512 10=1024 11=2048 12=4096 13=8192) */ 240#define ISCSI_DIF_FLAGS_PROT_INTERVAL_SIZE_LOG_SHIFT 0 241#define ISCSI_DIF_FLAGS_DIF_TO_PEER_MASK 0x1 /* If DIF protection is configured against target (0=no, 1=yes) */ 242#define ISCSI_DIF_FLAGS_DIF_TO_PEER_SHIFT 4 243#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) */ 244#define ISCSI_DIF_FLAGS_HOST_INTERFACE_SHIFT 5 245}; 246 247/* 248 * The iscsi storm task context of Ystorm 249 */ 250struct ystorm_iscsi_task_state 251{ 252 struct scsi_cached_sges data_desc; 253 struct scsi_sgl_params sgl_params; 254 __le32 exp_r2t_sn /* Initiator mode - Expected R2T PDU index in sequence. [variable, initialized 0] */; 255 __le32 buffer_offset /* Payload data offset */; 256 union iscsi_seq_num seq_num /* PDU index in sequence */; 257 struct iscsi_dif_flags dif_flags /* Dif flags */; 258 u8 flags; 259#define YSTORM_ISCSI_TASK_STATE_LOCAL_COMP_MASK 0x1 /* local_completion */ 260#define YSTORM_ISCSI_TASK_STATE_LOCAL_COMP_SHIFT 0 261#define YSTORM_ISCSI_TASK_STATE_SLOW_IO_MASK 0x1 /* Equals 1 if SGL is predicted and 0 otherwise. */ 262#define YSTORM_ISCSI_TASK_STATE_SLOW_IO_SHIFT 1 263#define YSTORM_ISCSI_TASK_STATE_SET_DIF_OFFSET_MASK 0x1 /* Indication for Ystorm that TDIFs offsetInIo is not synced with buffer_offset */ 264#define YSTORM_ISCSI_TASK_STATE_SET_DIF_OFFSET_SHIFT 2 265#define YSTORM_ISCSI_TASK_STATE_RESERVED0_MASK 0x1F 266#define YSTORM_ISCSI_TASK_STATE_RESERVED0_SHIFT 3 267}; 268 269/* 270 * The iscsi storm task context of Ystorm 271 */ 272struct ystorm_iscsi_task_rxmit_opt 273{ 274 __le32 fast_rxmit_sge_offset /* SGE offset from which to continue dummy-read or start fast retransmit */; 275 __le32 scan_start_buffer_offset /* Starting buffer offset of next retransmit SGL scan */; 276 __le32 fast_rxmit_buffer_offset /* Buffer offset from which to continue dummy-read or start fast retransmit */; 277 u8 scan_start_sgl_index /* Starting SGL index of next retransmit SGL scan */; 278 u8 fast_rxmit_sgl_index /* SGL index from which to continue dummy-read or start fast retransmit */; 279 __le16 reserved /* reserved */; 280}; 281 282/* 283 * iSCSI Common PDU header 284 */ 285struct iscsi_common_hdr 286{ 287 u8 hdr_status /* Status field of ISCSI header */; 288 u8 hdr_response /* Response field of ISCSI header for Responses / Reserved for Data-In */; 289 u8 hdr_flags /* Flags field of ISCSI header */; 290 u8 hdr_first_byte; 291#define ISCSI_COMMON_HDR_OPCODE_MASK 0x3F /* Opcode */ 292#define ISCSI_COMMON_HDR_OPCODE_SHIFT 0 293#define ISCSI_COMMON_HDR_IMM_MASK 0x1 /* Immediate */ 294#define ISCSI_COMMON_HDR_IMM_SHIFT 6 295#define ISCSI_COMMON_HDR_RSRV_MASK 0x1 /* first bit of iSCSI PDU header */ 296#define ISCSI_COMMON_HDR_RSRV_SHIFT 7 297 __le32 hdr_second_dword; 298#define ISCSI_COMMON_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 299#define ISCSI_COMMON_HDR_DATA_SEG_LEN_SHIFT 0 300#define ISCSI_COMMON_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 301#define ISCSI_COMMON_HDR_TOTAL_AHS_LEN_SHIFT 24 302 struct regpair lun_reserved /* Bytes 8..15 : LUN (if PDU contains a LUN field) or reserved */; 303 __le32 itt /* ITT - common to all headers */; 304 __le32 ttt /* bytes 20 to 23 - common ttt to various PDU headers */; 305 __le32 cmdstat_sn /* bytes 24 to 27 - common cmd_sn (initiator) or stat_sn (target) to various PDU headers */; 306 __le32 exp_statcmd_sn /* bytes 28 to 31 - common expected stat_sn (initiator) or cmd_sn (target) to various PDU headers */; 307 __le32 max_cmd_sn /* bytes 32 to 35 - common max cmd_sn to various PDU headers */; 308 __le32 data[3] /* bytes 36 to 47 */; 309}; 310 311/* 312 * iSCSI Command PDU header 313 */ 314struct iscsi_cmd_hdr 315{ 316 __le16 reserved1 /* reserved */; 317 u8 flags_attr; 318#define ISCSI_CMD_HDR_ATTR_MASK 0x7 /* attributes */ 319#define ISCSI_CMD_HDR_ATTR_SHIFT 0 320#define ISCSI_CMD_HDR_RSRV_MASK 0x3 /* reserved */ 321#define ISCSI_CMD_HDR_RSRV_SHIFT 3 322#define ISCSI_CMD_HDR_WRITE_MASK 0x1 /* write */ 323#define ISCSI_CMD_HDR_WRITE_SHIFT 5 324#define ISCSI_CMD_HDR_READ_MASK 0x1 /* read */ 325#define ISCSI_CMD_HDR_READ_SHIFT 6 326#define ISCSI_CMD_HDR_FINAL_MASK 0x1 /* final */ 327#define ISCSI_CMD_HDR_FINAL_SHIFT 7 328 u8 hdr_first_byte; 329#define ISCSI_CMD_HDR_OPCODE_MASK 0x3F /* Opcode */ 330#define ISCSI_CMD_HDR_OPCODE_SHIFT 0 331#define ISCSI_CMD_HDR_IMM_MASK 0x1 /* Immediate delivery */ 332#define ISCSI_CMD_HDR_IMM_SHIFT 6 333#define ISCSI_CMD_HDR_RSRV1_MASK 0x1 /* first bit of iSCSI PDU header */ 334#define ISCSI_CMD_HDR_RSRV1_SHIFT 7 335 __le32 hdr_second_dword; 336#define ISCSI_CMD_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 337#define ISCSI_CMD_HDR_DATA_SEG_LEN_SHIFT 0 338#define ISCSI_CMD_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 339#define ISCSI_CMD_HDR_TOTAL_AHS_LEN_SHIFT 24 340 struct regpair lun /* Logical Unit Number. [constant, initialized] */; 341 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 342 __le32 expected_transfer_length /* Expected Data Transfer Length (only 3 bytes are significant) */; 343 __le32 cmd_sn /* CmdSn. [constant, initialized] */; 344 __le32 exp_stat_sn /* various fields for middle-path PDU. [constant, initialized] */; 345 __le32 cdb[4] /* CDB. [constant, initialized] */; 346}; 347 348/* 349 * iSCSI Command PDU header with Extended CDB (Initiator Mode) 350 */ 351struct iscsi_ext_cdb_cmd_hdr 352{ 353 __le16 reserved1 /* reserved */; 354 u8 flags_attr; 355#define ISCSI_EXT_CDB_CMD_HDR_ATTR_MASK 0x7 /* attributes */ 356#define ISCSI_EXT_CDB_CMD_HDR_ATTR_SHIFT 0 357#define ISCSI_EXT_CDB_CMD_HDR_RSRV_MASK 0x3 /* reserved */ 358#define ISCSI_EXT_CDB_CMD_HDR_RSRV_SHIFT 3 359#define ISCSI_EXT_CDB_CMD_HDR_WRITE_MASK 0x1 /* write */ 360#define ISCSI_EXT_CDB_CMD_HDR_WRITE_SHIFT 5 361#define ISCSI_EXT_CDB_CMD_HDR_READ_MASK 0x1 /* read */ 362#define ISCSI_EXT_CDB_CMD_HDR_READ_SHIFT 6 363#define ISCSI_EXT_CDB_CMD_HDR_FINAL_MASK 0x1 /* final */ 364#define ISCSI_EXT_CDB_CMD_HDR_FINAL_SHIFT 7 365 u8 opcode /* opcode. [constant, initialized] */; 366 __le32 hdr_second_dword; 367#define ISCSI_EXT_CDB_CMD_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 368#define ISCSI_EXT_CDB_CMD_HDR_DATA_SEG_LEN_SHIFT 0 369#define ISCSI_EXT_CDB_CMD_HDR_CDB_SIZE_MASK 0xFF /* The Extended CDB size in bytes. Maximum Extended CDB size supported is CDB 64B. */ 370#define ISCSI_EXT_CDB_CMD_HDR_CDB_SIZE_SHIFT 24 371 struct regpair lun /* Logical Unit Number. [constant, initialized] */; 372 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 373 __le32 expected_transfer_length /* Expected Data Transfer Length (only 3 bytes are significant) */; 374 __le32 cmd_sn /* CmdSn. [constant, initialized] */; 375 __le32 exp_stat_sn /* various fields for middle-path PDU. [constant, initialized] */; 376 struct scsi_sge cdb_sge /* Extended CDBs dedicated SGE */; 377}; 378 379/* 380 * iSCSI login request PDU header 381 */ 382struct iscsi_login_req_hdr 383{ 384 u8 version_min /* Version-min */; 385 u8 version_max /* Version-max */; 386 u8 flags_attr; 387#define ISCSI_LOGIN_REQ_HDR_NSG_MASK 0x3 /* Next Stage (NSG) */ 388#define ISCSI_LOGIN_REQ_HDR_NSG_SHIFT 0 389#define ISCSI_LOGIN_REQ_HDR_CSG_MASK 0x3 /* Current stage (CSG) */ 390#define ISCSI_LOGIN_REQ_HDR_CSG_SHIFT 2 391#define ISCSI_LOGIN_REQ_HDR_RSRV_MASK 0x3 /* reserved */ 392#define ISCSI_LOGIN_REQ_HDR_RSRV_SHIFT 4 393#define ISCSI_LOGIN_REQ_HDR_C_MASK 0x1 /* C (Continue) bit */ 394#define ISCSI_LOGIN_REQ_HDR_C_SHIFT 6 395#define ISCSI_LOGIN_REQ_HDR_T_MASK 0x1 /* T (Transit) bit */ 396#define ISCSI_LOGIN_REQ_HDR_T_SHIFT 7 397 u8 opcode /* opcode. [constant, initialized] */; 398 __le32 hdr_second_dword; 399#define ISCSI_LOGIN_REQ_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 400#define ISCSI_LOGIN_REQ_HDR_DATA_SEG_LEN_SHIFT 0 401#define ISCSI_LOGIN_REQ_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 402#define ISCSI_LOGIN_REQ_HDR_TOTAL_AHS_LEN_SHIFT 24 403 __le32 isid_tabc /* Session identifier high double word [constant, initialized] */; 404 __le16 tsih /* TSIH */; 405 __le16 isid_d /* Session identifier low word [constant, initialized] */; 406 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 407 __le16 reserved1; 408 __le16 cid /* Unique Connection ID within the session [constant, initialized] */; 409 __le32 cmd_sn /* CmdSn. [constant, initialized] */; 410 __le32 exp_stat_sn /* various fields for middle-path PDU. [constant, initialized] */; 411 __le32 reserved2[4]; 412}; 413 414/* 415 * iSCSI logout request PDU header 416 */ 417struct iscsi_logout_req_hdr 418{ 419 __le16 reserved0 /* reserved */; 420 u8 reason_code /* Reason Code */; 421 u8 opcode /* opcode. [constant, initialized] */; 422 __le32 reserved1; 423 __le32 reserved2[2] /* Reserved */; 424 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 425 __le16 reserved3 /* Reserved */; 426 __le16 cid /* Unique Connection ID within the session [constant, initialized] */; 427 __le32 cmd_sn /* CmdSn. [constant, initialized] */; 428 __le32 exp_stat_sn /* various fields for middle-path PDU. [constant, initialized] */; 429 __le32 reserved4[4] /* Reserved */; 430}; 431 432/* 433 * iSCSI Data-out PDU header 434 */ 435struct iscsi_data_out_hdr 436{ 437 __le16 reserved1 /* reserved */; 438 u8 flags_attr; 439#define ISCSI_DATA_OUT_HDR_RSRV_MASK 0x7F /* reserved */ 440#define ISCSI_DATA_OUT_HDR_RSRV_SHIFT 0 441#define ISCSI_DATA_OUT_HDR_FINAL_MASK 0x1 /* final */ 442#define ISCSI_DATA_OUT_HDR_FINAL_SHIFT 7 443 u8 opcode /* opcode */; 444 __le32 reserved2 /* reserved */; 445 struct regpair lun /* Logical Unit Number */; 446 __le32 itt /* Initiator Task Tag (only 2 bytes are significant) */; 447 __le32 ttt /* Target Transfer Tag (from R2T) */; 448 __le32 reserved3 /* resrved */; 449 __le32 exp_stat_sn /* Expected StatSn */; 450 __le32 reserved4 /* resrved */; 451 __le32 data_sn /* DataSN - PDU index in sequnece */; 452 __le32 buffer_offset /* Buffer Offset - offset in task */; 453 __le32 reserved5 /* resrved */; 454}; 455 456/* 457 * iSCSI Data-in PDU header 458 */ 459struct iscsi_data_in_hdr 460{ 461 u8 status_rsvd /* Status or reserved */; 462 u8 reserved1 /* reserved */; 463 u8 flags; 464#define ISCSI_DATA_IN_HDR_STATUS_MASK 0x1 /* Status */ 465#define ISCSI_DATA_IN_HDR_STATUS_SHIFT 0 466#define ISCSI_DATA_IN_HDR_UNDERFLOW_MASK 0x1 /* Residual Underflow */ 467#define ISCSI_DATA_IN_HDR_UNDERFLOW_SHIFT 1 468#define ISCSI_DATA_IN_HDR_OVERFLOW_MASK 0x1 /* Residual Overflow */ 469#define ISCSI_DATA_IN_HDR_OVERFLOW_SHIFT 2 470#define ISCSI_DATA_IN_HDR_RSRV_MASK 0x7 /* reserved - 0 */ 471#define ISCSI_DATA_IN_HDR_RSRV_SHIFT 3 472#define ISCSI_DATA_IN_HDR_ACK_MASK 0x1 /* Acknowledge */ 473#define ISCSI_DATA_IN_HDR_ACK_SHIFT 6 474#define ISCSI_DATA_IN_HDR_FINAL_MASK 0x1 /* final */ 475#define ISCSI_DATA_IN_HDR_FINAL_SHIFT 7 476 u8 opcode /* opcode */; 477 __le32 reserved2 /* reserved */; 478 struct regpair lun /* Logical Unit Number */; 479 __le32 itt /* Initiator Task Tag (only 2 bytes are significant) */; 480 __le32 ttt /* Target Transfer Tag (from R2T) */; 481 __le32 stat_sn /* StatSN or reserved */; 482 __le32 exp_cmd_sn /* Expected CmdSn */; 483 __le32 max_cmd_sn /* MaxCmdSn */; 484 __le32 data_sn /* DataSN - PDU index in sequnece */; 485 __le32 buffer_offset /* Buffer Offset - offset in task */; 486 __le32 residual_count /* Residual Count */; 487}; 488 489/* 490 * iSCSI R2T PDU header 491 */ 492struct iscsi_r2t_hdr 493{ 494 u8 reserved0[3] /* reserved */; 495 u8 opcode /* opcode */; 496 __le32 reserved2 /* reserved */; 497 struct regpair lun /* Logical Unit Number */; 498 __le32 itt /* Initiator Task Tag */; 499 __le32 ttt /* Target Transfer Tag */; 500 __le32 stat_sn /* stat sn */; 501 __le32 exp_cmd_sn /* Expected CmdSn */; 502 __le32 max_cmd_sn /* Max CmdSn */; 503 __le32 r2t_sn /* DataSN - PDU index in sequnece */; 504 __le32 buffer_offset /* Buffer Offset - offset in task */; 505 __le32 desired_data_trns_len /* Desired data trnsfer len */; 506}; 507 508/* 509 * iSCSI NOP-out PDU header 510 */ 511struct iscsi_nop_out_hdr 512{ 513 __le16 reserved1 /* reserved */; 514 u8 flags_attr; 515#define ISCSI_NOP_OUT_HDR_RSRV_MASK 0x7F /* reserved */ 516#define ISCSI_NOP_OUT_HDR_RSRV_SHIFT 0 517#define ISCSI_NOP_OUT_HDR_CONST1_MASK 0x1 /* const1 */ 518#define ISCSI_NOP_OUT_HDR_CONST1_SHIFT 7 519 u8 opcode /* opcode */; 520 __le32 reserved2 /* reserved */; 521 struct regpair lun /* Logical Unit Number */; 522 __le32 itt /* Initiator Task Tag (only 2 bytes are significant) */; 523 __le32 ttt /* Target Transfer Tag (from R2T) */; 524 __le32 cmd_sn /* CmdSN */; 525 __le32 exp_stat_sn /* Expected StatSn */; 526 __le32 reserved3 /* reserved */; 527 __le32 reserved4 /* reserved */; 528 __le32 reserved5 /* reserved */; 529 __le32 reserved6 /* reserved */; 530}; 531 532/* 533 * iSCSI NOP-in PDU header 534 */ 535struct iscsi_nop_in_hdr 536{ 537 __le16 reserved0 /* reserved */; 538 u8 flags_attr; 539#define ISCSI_NOP_IN_HDR_RSRV_MASK 0x7F /* reserved */ 540#define ISCSI_NOP_IN_HDR_RSRV_SHIFT 0 541#define ISCSI_NOP_IN_HDR_CONST1_MASK 0x1 /* const1 */ 542#define ISCSI_NOP_IN_HDR_CONST1_SHIFT 7 543 u8 opcode /* opcode */; 544 __le32 hdr_second_dword; 545#define ISCSI_NOP_IN_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 546#define ISCSI_NOP_IN_HDR_DATA_SEG_LEN_SHIFT 0 547#define ISCSI_NOP_IN_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 548#define ISCSI_NOP_IN_HDR_TOTAL_AHS_LEN_SHIFT 24 549 struct regpair lun /* Logical Unit Number */; 550 __le32 itt /* Initiator Task Tag (only 2 bytes are significant) */; 551 __le32 ttt /* Target Transfer Tag */; 552 __le32 stat_sn /* stat_sn */; 553 __le32 exp_cmd_sn /* exp_cmd_sn */; 554 __le32 max_cmd_sn /* max_cmd_sn */; 555 __le32 reserved5 /* reserved */; 556 __le32 reserved6 /* reserved */; 557 __le32 reserved7 /* reserved */; 558}; 559 560/* 561 * iSCSI Login Response PDU header 562 */ 563struct iscsi_login_response_hdr 564{ 565 u8 version_active /* Version-active */; 566 u8 version_max /* Version-max */; 567 u8 flags_attr; 568#define ISCSI_LOGIN_RESPONSE_HDR_NSG_MASK 0x3 /* Next Stage (NSG) */ 569#define ISCSI_LOGIN_RESPONSE_HDR_NSG_SHIFT 0 570#define ISCSI_LOGIN_RESPONSE_HDR_CSG_MASK 0x3 /* Current stage (CSG) */ 571#define ISCSI_LOGIN_RESPONSE_HDR_CSG_SHIFT 2 572#define ISCSI_LOGIN_RESPONSE_HDR_RSRV_MASK 0x3 /* reserved */ 573#define ISCSI_LOGIN_RESPONSE_HDR_RSRV_SHIFT 4 574#define ISCSI_LOGIN_RESPONSE_HDR_C_MASK 0x1 /* C (Continue) bit */ 575#define ISCSI_LOGIN_RESPONSE_HDR_C_SHIFT 6 576#define ISCSI_LOGIN_RESPONSE_HDR_T_MASK 0x1 /* T (Transit) bit */ 577#define ISCSI_LOGIN_RESPONSE_HDR_T_SHIFT 7 578 u8 opcode /* opcode. [constant, initialized] */; 579 __le32 hdr_second_dword; 580#define ISCSI_LOGIN_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 581#define ISCSI_LOGIN_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0 582#define ISCSI_LOGIN_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 583#define ISCSI_LOGIN_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24 584 __le32 isid_tabc /* Session identifier high double word [constant, initialized] */; 585 __le16 tsih /* TSIH */; 586 __le16 isid_d /* Session identifier low word [constant, initialized] */; 587 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 588 __le32 reserved1; 589 __le32 stat_sn /* CmdSn. [constant, initialized] */; 590 __le32 exp_cmd_sn /* various fields for middle-path PDU. [constant, initialized] */; 591 __le32 max_cmd_sn /* max_cmd_sn */; 592 __le16 reserved2; 593 u8 status_detail /* status_detail */; 594 u8 status_class /* status_class */; 595 __le32 reserved4[2]; 596}; 597 598/* 599 * iSCSI Logout Response PDU header 600 */ 601struct iscsi_logout_response_hdr 602{ 603 u8 reserved1 /* reserved */; 604 u8 response /* response */; 605 u8 flags /* flags and attributes */; 606 u8 opcode /* opcode. [constant, initialized] */; 607 __le32 hdr_second_dword; 608#define ISCSI_LOGOUT_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 609#define ISCSI_LOGOUT_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0 610#define ISCSI_LOGOUT_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 611#define ISCSI_LOGOUT_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24 612 __le32 reserved2[2] /* Reserved */; 613 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 614 __le32 reserved3 /* Reserved */; 615 __le32 stat_sn /* CmdSN */; 616 __le32 exp_cmd_sn /* Expected StatSn */; 617 __le32 max_cmd_sn /* CmdSN */; 618 __le32 reserved4 /* Reserved */; 619 __le16 time_2_retain /* Time to Retain */; 620 __le16 time_2_wait /* Time to wait */; 621 __le32 reserved5[1] /* Reserved */; 622}; 623 624/* 625 * iSCSI Text Request PDU header 626 */ 627struct iscsi_text_request_hdr 628{ 629 __le16 reserved0 /* reserved */; 630 u8 flags_attr; 631#define ISCSI_TEXT_REQUEST_HDR_RSRV_MASK 0x3F /* reserved */ 632#define ISCSI_TEXT_REQUEST_HDR_RSRV_SHIFT 0 633#define ISCSI_TEXT_REQUEST_HDR_C_MASK 0x1 /* C (Continue) bit */ 634#define ISCSI_TEXT_REQUEST_HDR_C_SHIFT 6 635#define ISCSI_TEXT_REQUEST_HDR_F_MASK 0x1 /* F (Final) bit */ 636#define ISCSI_TEXT_REQUEST_HDR_F_SHIFT 7 637 u8 opcode /* opcode. [constant, initialized] */; 638 __le32 hdr_second_dword; 639#define ISCSI_TEXT_REQUEST_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 640#define ISCSI_TEXT_REQUEST_HDR_DATA_SEG_LEN_SHIFT 0 641#define ISCSI_TEXT_REQUEST_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 642#define ISCSI_TEXT_REQUEST_HDR_TOTAL_AHS_LEN_SHIFT 24 643 struct regpair lun /* Logical Unit Number */; 644 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 645 __le32 ttt /* Referenced Task Tag or 0xffffffff */; 646 __le32 cmd_sn /* cmd_sn */; 647 __le32 exp_stat_sn /* exp_stat_sn */; 648 __le32 reserved4[4] /* Reserved */; 649}; 650 651/* 652 * iSCSI Text Response PDU header 653 */ 654struct iscsi_text_response_hdr 655{ 656 __le16 reserved1 /* reserved */; 657 u8 flags; 658#define ISCSI_TEXT_RESPONSE_HDR_RSRV_MASK 0x3F /* reserved */ 659#define ISCSI_TEXT_RESPONSE_HDR_RSRV_SHIFT 0 660#define ISCSI_TEXT_RESPONSE_HDR_C_MASK 0x1 /* C (Continue) bit */ 661#define ISCSI_TEXT_RESPONSE_HDR_C_SHIFT 6 662#define ISCSI_TEXT_RESPONSE_HDR_F_MASK 0x1 /* F (Final) bit */ 663#define ISCSI_TEXT_RESPONSE_HDR_F_SHIFT 7 664 u8 opcode /* opcode. [constant, initialized] */; 665 __le32 hdr_second_dword; 666#define ISCSI_TEXT_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 667#define ISCSI_TEXT_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0 668#define ISCSI_TEXT_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 669#define ISCSI_TEXT_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24 670 struct regpair lun /* Logical Unit Number */; 671 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 672 __le32 ttt /* Target Task Tag */; 673 __le32 stat_sn /* CmdSN */; 674 __le32 exp_cmd_sn /* Expected StatSn */; 675 __le32 max_cmd_sn /* CmdSN */; 676 __le32 reserved4[3] /* Reserved */; 677}; 678 679/* 680 * iSCSI TMF Request PDU header 681 */ 682struct iscsi_tmf_request_hdr 683{ 684 __le16 reserved0 /* reserved */; 685 u8 function /* function */; 686 u8 opcode /* opcode. [constant, initialized] */; 687 __le32 hdr_second_dword; 688#define ISCSI_TMF_REQUEST_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 689#define ISCSI_TMF_REQUEST_HDR_DATA_SEG_LEN_SHIFT 0 690#define ISCSI_TMF_REQUEST_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 691#define ISCSI_TMF_REQUEST_HDR_TOTAL_AHS_LEN_SHIFT 24 692 struct regpair lun /* Logical Unit Number */; 693 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 694 __le32 rtt /* Referenced Task Tag or 0xffffffff */; 695 __le32 cmd_sn /* cmd_sn */; 696 __le32 exp_stat_sn /* exp_stat_sn */; 697 __le32 ref_cmd_sn /* ref_cmd_sn */; 698 __le32 exp_data_sn /* exp_data_sn */; 699 __le32 reserved4[2] /* Reserved */; 700}; 701 702struct iscsi_tmf_response_hdr 703{ 704 u8 reserved2 /* reserved2 */; 705 u8 hdr_response /* Response field of ISCSI header for Responses / Reserved for Data-In */; 706 u8 hdr_flags /* Flags field of ISCSI header */; 707 u8 opcode /* opcode. [constant, initialized] */; 708 __le32 hdr_second_dword; 709#define ISCSI_TMF_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 710#define ISCSI_TMF_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0 711#define ISCSI_TMF_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 712#define ISCSI_TMF_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24 713 struct regpair reserved0; 714 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 715 __le32 reserved1 /* Reserved */; 716 __le32 stat_sn /* stat_sn */; 717 __le32 exp_cmd_sn /* exp_cmd_sn */; 718 __le32 max_cmd_sn /* max_cmd_sn */; 719 __le32 reserved4[3] /* Reserved */; 720}; 721 722/* 723 * iSCSI Response PDU header 724 */ 725struct iscsi_response_hdr 726{ 727 u8 hdr_status /* Status field of ISCSI header */; 728 u8 hdr_response /* Response field of ISCSI header for Responses / Reserved for Data-In */; 729 u8 hdr_flags /* Flags field of ISCSI header */; 730 u8 opcode /* opcode. [constant, initialized] */; 731 __le32 hdr_second_dword; 732#define ISCSI_RESPONSE_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 733#define ISCSI_RESPONSE_HDR_DATA_SEG_LEN_SHIFT 0 734#define ISCSI_RESPONSE_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 735#define ISCSI_RESPONSE_HDR_TOTAL_AHS_LEN_SHIFT 24 736 struct regpair lun /* Logical Unit Number */; 737 __le32 itt /* Initiator Task Tag (only 2 bytes are significant). [constant, initialized] */; 738 __le32 snack_tag /* Currently ERL>0 is not supported */; 739 __le32 stat_sn /* CmdSN */; 740 __le32 exp_cmd_sn /* Expected StatSn */; 741 __le32 max_cmd_sn /* CmdSN */; 742 __le32 exp_data_sn /* exp_data_sn */; 743 __le32 bi_residual_count /* bi residual count */; 744 __le32 residual_count /* residual count */; 745}; 746 747/* 748 * iSCSI Reject PDU header 749 */ 750struct iscsi_reject_hdr 751{ 752 u8 reserved4 /* Reserved */; 753 u8 hdr_reason /* The reject reason */; 754 u8 hdr_flags /* Flags field of ISCSI header */; 755 u8 opcode /* opcode. [constant, initialized] */; 756 __le32 hdr_second_dword; 757#define ISCSI_REJECT_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 758#define ISCSI_REJECT_HDR_DATA_SEG_LEN_SHIFT 0 759#define ISCSI_REJECT_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 760#define ISCSI_REJECT_HDR_TOTAL_AHS_LEN_SHIFT 24 761 struct regpair reserved0; 762 __le32 all_ones; 763 __le32 reserved2; 764 __le32 stat_sn /* stat_sn */; 765 __le32 exp_cmd_sn /* exp_cmd_sn */; 766 __le32 max_cmd_sn /* max_cmd_sn */; 767 __le32 data_sn /* data_sn */; 768 __le32 reserved3[2] /* reserved3 */; 769}; 770 771/* 772 * iSCSI Asynchronous Message PDU header 773 */ 774struct iscsi_async_msg_hdr 775{ 776 __le16 reserved0 /* reserved */; 777 u8 flags_attr; 778#define ISCSI_ASYNC_MSG_HDR_RSRV_MASK 0x7F /* reserved */ 779#define ISCSI_ASYNC_MSG_HDR_RSRV_SHIFT 0 780#define ISCSI_ASYNC_MSG_HDR_CONST1_MASK 0x1 /* const1 */ 781#define ISCSI_ASYNC_MSG_HDR_CONST1_SHIFT 7 782 u8 opcode /* opcode */; 783 __le32 hdr_second_dword; 784#define ISCSI_ASYNC_MSG_HDR_DATA_SEG_LEN_MASK 0xFFFFFF /* DataSegmentLength */ 785#define ISCSI_ASYNC_MSG_HDR_DATA_SEG_LEN_SHIFT 0 786#define ISCSI_ASYNC_MSG_HDR_TOTAL_AHS_LEN_MASK 0xFF /* TotalAHSLength */ 787#define ISCSI_ASYNC_MSG_HDR_TOTAL_AHS_LEN_SHIFT 24 788 struct regpair lun /* Logical Unit Number */; 789 __le32 all_ones /* should be 0xffffffff */; 790 __le32 reserved1 /* reserved */; 791 __le32 stat_sn /* stat_sn */; 792 __le32 exp_cmd_sn /* exp_cmd_sn */; 793 __le32 max_cmd_sn /* max_cmd_sn */; 794 __le16 param1_rsrv /* Parameter1 or Reserved */; 795 u8 async_vcode /* AsuncVCode */; 796 u8 async_event /* AsyncEvent */; 797 __le16 param3_rsrv /* Parameter3 or Reserved */; 798 __le16 param2_rsrv /* Parameter2 or Reserved */; 799 __le32 reserved7 /* reserved */; 800}; 801 802/* 803 * PDU header part of Ystorm task context 804 */ 805union iscsi_task_hdr 806{ 807 struct iscsi_common_hdr common /* Command PDU header */; 808 struct data_hdr data /* Command PDU header */; 809 struct iscsi_cmd_hdr cmd /* Command PDU header */; 810 struct iscsi_ext_cdb_cmd_hdr ext_cdb_cmd /* Command PDU header with extended CDB - Initiator Mode */; 811 struct iscsi_login_req_hdr login_req /* Login request PDU header */; 812 struct iscsi_logout_req_hdr logout_req /* Logout request PDU header */; 813 struct iscsi_data_out_hdr data_out /* Data-out PDU header */; 814 struct iscsi_data_in_hdr data_in /* Data-in PDU header */; 815 struct iscsi_r2t_hdr r2t /* R2T PDU header */; 816 struct iscsi_nop_out_hdr nop_out /* NOP-out PDU header */; 817 struct iscsi_nop_in_hdr nop_in /* NOP-in PDU header */; 818 struct iscsi_login_response_hdr login_response /* Login response PDU header */; 819 struct iscsi_logout_response_hdr logout_response /* Logout response PDU header */; 820 struct iscsi_text_request_hdr text_request /* Text request PDU header */; 821 struct iscsi_text_response_hdr text_response /* Text response PDU header */; 822 struct iscsi_tmf_request_hdr tmf_request /* TMF request PDU header */; 823 struct iscsi_tmf_response_hdr tmf_response /* TMF response PDU header */; 824 struct iscsi_response_hdr response /* Text response PDU header */; 825 struct iscsi_reject_hdr reject /* Reject PDU header */; 826 struct iscsi_async_msg_hdr async_msg /* Asynchronous Message PDU header */; 827}; 828 829/* 830 * The iscsi storm task context of Ystorm 831 */ 832struct ystorm_iscsi_task_st_ctx 833{ 834 struct ystorm_iscsi_task_state state /* iSCSI task parameters and state */; 835 struct ystorm_iscsi_task_rxmit_opt rxmit_opt /* iSCSI retransmit optimizations parameters */; 836 union iscsi_task_hdr pdu_hdr /* PDU header - [constant initialized] */; 837}; 838 839struct e4_ystorm_iscsi_task_ag_ctx 840{ 841 u8 reserved /* cdu_validation */; 842 u8 byte1 /* state */; 843 __le16 word0 /* icid */; 844 u8 flags0; 845#define E4_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF /* connection_type */ 846#define E4_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0 847#define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 /* exist_in_qm0 */ 848#define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4 849#define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */ 850#define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5 851#define E4_YSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 /* bit2 */ 852#define E4_YSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6 853#define E4_YSTORM_ISCSI_TASK_AG_CTX_TTT_VALID_MASK 0x1 /* bit3 */ 854#define E4_YSTORM_ISCSI_TASK_AG_CTX_TTT_VALID_SHIFT 7 855 u8 flags1; 856#define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 /* cf0 */ 857#define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 0 858#define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* cf1 */ 859#define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2 860#define E4_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_MASK 0x3 /* cf2special */ 861#define E4_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_SHIFT 4 862#define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 /* cf0en */ 863#define E4_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 6 864#define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */ 865#define E4_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7 866 u8 flags2; 867#define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 /* bit4 */ 868#define E4_YSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0 869#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */ 870#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1 871#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */ 872#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2 873#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */ 874#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3 875#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */ 876#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4 877#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */ 878#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5 879#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */ 880#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6 881#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */ 882#define E4_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7 883 u8 byte2 /* byte2 */; 884 __le32 TTT /* reg0 */; 885 u8 byte3 /* byte3 */; 886 u8 byte4 /* byte4 */; 887 __le16 word1 /* word1 */; 888}; 889 890struct e4_mstorm_iscsi_task_ag_ctx 891{ 892 u8 cdu_validation /* cdu_validation */; 893 u8 byte1 /* state */; 894 __le16 task_cid /* icid */; 895 u8 flags0; 896#define E4_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF /* connection_type */ 897#define E4_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0 898#define E4_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 /* exist_in_qm0 */ 899#define E4_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4 900#define E4_MSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */ 901#define E4_MSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5 902#define E4_MSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 /* bit2 */ 903#define E4_MSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6 904#define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_MASK 0x1 /* bit3 */ 905#define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_SHIFT 7 906 u8 flags1; 907#define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_MASK 0x3 /* cf0 */ 908#define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_SHIFT 0 909#define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* cf1 */ 910#define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2 911#define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 /* cf2 */ 912#define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 4 913#define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_MASK 0x1 /* cf0en */ 914#define E4_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_SHIFT 6 915#define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */ 916#define E4_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7 917 u8 flags2; 918#define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 /* cf2en */ 919#define E4_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 0 920#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */ 921#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1 922#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */ 923#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2 924#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */ 925#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3 926#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */ 927#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4 928#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */ 929#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5 930#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */ 931#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6 932#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */ 933#define E4_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7 934 u8 byte2 /* byte2 */; 935 __le32 reg0 /* reg0 */; 936 u8 byte3 /* byte3 */; 937 u8 byte4 /* byte4 */; 938 __le16 word1 /* word1 */; 939}; 940 941struct e4_ustorm_iscsi_task_ag_ctx 942{ 943 u8 reserved /* cdu_validation */; 944 u8 state /* state */; 945 __le16 icid /* icid */; 946 u8 flags0; 947#define E4_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF /* connection_type */ 948#define E4_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0 949#define E4_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 /* exist_in_qm0 */ 950#define E4_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4 951#define E4_USTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */ 952#define E4_USTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5 953#define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_MASK 0x3 /* timer0cf */ 954#define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_SHIFT 6 955 u8 flags1; 956#define E4_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_MASK 0x3 /* timer1cf */ 957#define E4_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_SHIFT 0 958#define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_MASK 0x3 /* timer2cf */ 959#define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_SHIFT 2 960#define E4_USTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 /* timer_stop_all */ 961#define E4_USTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 4 962#define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_MASK 0x3 /* cf4 */ 963#define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_SHIFT 6 964 u8 flags2; 965#define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_MASK 0x1 /* cf0en */ 966#define E4_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_SHIFT 0 967#define E4_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_MASK 0x1 /* cf1en */ 968#define E4_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_SHIFT 1 969#define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_MASK 0x1 /* cf2en */ 970#define E4_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_SHIFT 2 971#define E4_USTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 /* cf3en */ 972#define E4_USTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 3 973#define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_MASK 0x1 /* cf4en */ 974#define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_SHIFT 4 975#define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_MASK 0x1 /* rule0en */ 976#define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_SHIFT 5 977#define E4_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */ 978#define E4_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 6 979#define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_MASK 0x1 /* rule2en */ 980#define E4_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_SHIFT 7 981 u8 flags3; 982#define E4_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */ 983#define E4_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 0 984#define E4_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */ 985#define E4_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 1 986#define E4_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */ 987#define E4_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 2 988#define E4_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */ 989#define E4_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 3 990#define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_MASK 0xF /* nibble1 */ 991#define E4_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_SHIFT 4 992 __le32 dif_err_intervals /* reg0 */; 993 __le32 dif_error_1st_interval /* reg1 */; 994 __le32 rcv_cont_len /* reg2 */; 995 __le32 exp_cont_len /* reg3 */; 996 __le32 total_data_acked /* reg4 */; 997 __le32 exp_data_acked /* reg5 */; 998 u8 next_tid_valid /* byte2 */; 999 u8 byte3 /* byte3 */; 1000 __le16 word1 /* word1 */; 1001 __le16 next_tid /* word2 */; 1002 __le16 word3 /* word3 */; 1003 __le32 hdr_residual_count /* reg6 */; 1004 __le32 exp_r2t_sn /* reg7 */; 1005}; 1006 1007/* 1008 * The iscsi storm task context of Mstorm 1009 */ 1010struct mstorm_iscsi_task_st_ctx 1011{ 1012 struct scsi_cached_sges data_desc /* Union of Data SGL / cached sge */; 1013 struct scsi_sgl_params sgl_params; 1014 __le32 rem_task_size /* Remaining task size, used for placement verification */; 1015 __le32 data_buffer_offset /* Buffer offset */; 1016 u8 task_type /* Task type, (use: iscsi_task_type enum) */; 1017 struct iscsi_dif_flags dif_flags /* sizes of host/peer protection intervals + protection log interval */; 1018 __le16 dif_task_icid /* save tasks CID for validation - dif on immediate flow */; 1019 struct regpair sense_db /* Pointer to sense data buffer */; 1020 __le32 expected_itt /* ITT - for target mode validations */; 1021 __le32 reserved1 /* reserved1 */; 1022}; 1023 1024struct iscsi_reg1 1025{ 1026 __le32 reg1_map; 1027#define ISCSI_REG1_NUM_SGES_MASK 0xF /* Written to R2tQE */ 1028#define ISCSI_REG1_NUM_SGES_SHIFT 0 1029#define ISCSI_REG1_RESERVED1_MASK 0xFFFFFFF /* reserved */ 1030#define ISCSI_REG1_RESERVED1_SHIFT 4 1031}; 1032 1033struct tqe_opaque 1034{ 1035 __le16 opaque[2] /* TQe opaque */; 1036}; 1037 1038/* 1039 * The iscsi storm task context of Ustorm 1040 */ 1041struct ustorm_iscsi_task_st_ctx 1042{ 1043 __le32 rem_rcv_len /* Remaining data to be received in bytes. Used in validations */; 1044 __le32 exp_data_transfer_len /* iSCSI Initiator - The size of the transmitted task, iSCSI Target - the size of the Rx continuation */; 1045 __le32 exp_data_sn /* Expected data SN */; 1046 struct regpair lun /* LUN */; 1047 struct iscsi_reg1 reg1; 1048 u8 flags2; 1049#define USTORM_ISCSI_TASK_ST_CTX_AHS_EXIST_MASK 0x1 /* Initiator Mode - Mark AHS exist */ 1050#define USTORM_ISCSI_TASK_ST_CTX_AHS_EXIST_SHIFT 0 1051#define USTORM_ISCSI_TASK_ST_CTX_RESERVED1_MASK 0x7F 1052#define USTORM_ISCSI_TASK_ST_CTX_RESERVED1_SHIFT 1 1053 struct iscsi_dif_flags dif_flags /* Dif flags (written to R2T WQE) */; 1054 __le16 reserved3; 1055 struct tqe_opaque tqe_opaque_list; 1056 __le32 reserved5; 1057 __le32 reserved6; 1058 __le32 reserved7; 1059 u8 task_type /* Task Type */; 1060 u8 error_flags; 1061#define USTORM_ISCSI_TASK_ST_CTX_DATA_DIGEST_ERROR_MASK 0x1 /* Mark task with data digest error (1 bit) */ 1062#define USTORM_ISCSI_TASK_ST_CTX_DATA_DIGEST_ERROR_SHIFT 0 1063#define USTORM_ISCSI_TASK_ST_CTX_DATA_TRUNCATED_ERROR_MASK 0x1 /* Target Mode - Mark middle task error, data truncated */ 1064#define USTORM_ISCSI_TASK_ST_CTX_DATA_TRUNCATED_ERROR_SHIFT 1 1065#define USTORM_ISCSI_TASK_ST_CTX_UNDER_RUN_ERROR_MASK 0x1 1066#define USTORM_ISCSI_TASK_ST_CTX_UNDER_RUN_ERROR_SHIFT 2 1067#define USTORM_ISCSI_TASK_ST_CTX_RESERVED8_MASK 0x1F 1068#define USTORM_ISCSI_TASK_ST_CTX_RESERVED8_SHIFT 3 1069 u8 flags; 1070#define USTORM_ISCSI_TASK_ST_CTX_CQE_WRITE_MASK 0x3 /* mark task cqe write (for cleanup flow) */ 1071#define USTORM_ISCSI_TASK_ST_CTX_CQE_WRITE_SHIFT 0 1072#define USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP_MASK 0x1 /* local completion bit */ 1073#define USTORM_ISCSI_TASK_ST_CTX_LOCAL_COMP_SHIFT 2 1074#define USTORM_ISCSI_TASK_ST_CTX_Q0_R2TQE_WRITE_MASK 0x1 /* write R2TQE from Q0 flow */ 1075#define USTORM_ISCSI_TASK_ST_CTX_Q0_R2TQE_WRITE_SHIFT 3 1076#define USTORM_ISCSI_TASK_ST_CTX_TOTAL_DATA_ACKED_DONE_MASK 0x1 /* Mark total data acked or disabled */ 1077#define USTORM_ISCSI_TASK_ST_CTX_TOTAL_DATA_ACKED_DONE_SHIFT 4 1078#define USTORM_ISCSI_TASK_ST_CTX_HQ_SCANNED_DONE_MASK 0x1 /* Mark HQ scanned or disabled */ 1079#define USTORM_ISCSI_TASK_ST_CTX_HQ_SCANNED_DONE_SHIFT 5 1080#define USTORM_ISCSI_TASK_ST_CTX_R2T2RECV_DONE_MASK 0x1 /* Mark HQ scanned or disabled */ 1081#define USTORM_ISCSI_TASK_ST_CTX_R2T2RECV_DONE_SHIFT 6 1082#define USTORM_ISCSI_TASK_ST_CTX_RESERVED0_MASK 0x1 1083#define USTORM_ISCSI_TASK_ST_CTX_RESERVED0_SHIFT 7 1084 u8 cq_rss_number /* Task CQ_RSS number 0.63 */; 1085}; 1086 1087/* 1088 * iscsi task context 1089 */ 1090struct e4_iscsi_task_context 1091{ 1092 struct ystorm_iscsi_task_st_ctx ystorm_st_context /* ystorm storm context */; 1093 struct e4_ystorm_iscsi_task_ag_ctx ystorm_ag_context /* ystorm aggregative context */; 1094 struct regpair ystorm_ag_padding[2] /* padding */; 1095 struct tdif_task_context tdif_context /* tdif context */; 1096 struct e4_mstorm_iscsi_task_ag_ctx mstorm_ag_context /* mstorm aggregative context */; 1097 struct regpair mstorm_ag_padding[2] /* padding */; 1098 struct e4_ustorm_iscsi_task_ag_ctx ustorm_ag_context /* ustorm aggregative context */; 1099 struct mstorm_iscsi_task_st_ctx mstorm_st_context /* mstorm storm context */; 1100 struct ustorm_iscsi_task_st_ctx ustorm_st_context /* ustorm storm context */; 1101 struct rdif_task_context rdif_context /* rdif context */; 1102}; 1103 1104 1105struct e5_ystorm_iscsi_task_ag_ctx 1106{ 1107 u8 reserved /* cdu_validation */; 1108 u8 byte1 /* state_and_core_id */; 1109 __le16 word0 /* icid */; 1110 u8 flags0; 1111#define E5_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF /* connection_type */ 1112#define E5_YSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0 1113#define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 /* exist_in_qm0 */ 1114#define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4 1115#define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */ 1116#define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5 1117#define E5_YSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 /* bit2 */ 1118#define E5_YSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6 1119#define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1 /* bit3 */ 1120#define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7 1121 u8 flags1; 1122#define E5_YSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 /* cf0 */ 1123#define E5_YSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 0 1124#define E5_YSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* cf1 */ 1125#define E5_YSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2 1126#define E5_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_MASK 0x3 /* cf2special */ 1127#define E5_YSTORM_ISCSI_TASK_AG_CTX_CF2SPECIAL_SHIFT 4 1128#define E5_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 /* cf0en */ 1129#define E5_YSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 6 1130#define E5_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */ 1131#define E5_YSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7 1132 u8 flags2; 1133#define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 /* bit4 */ 1134#define E5_YSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0 1135#define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */ 1136#define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1 1137#define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */ 1138#define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2 1139#define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */ 1140#define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3 1141#define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */ 1142#define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4 1143#define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */ 1144#define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5 1145#define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */ 1146#define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6 1147#define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */ 1148#define E5_YSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7 1149 u8 flags3; 1150#define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_MASK 0x1 /* bit5 */ 1151#define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_SHIFT 0 1152#define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_MASK 0x3 /* cf3 */ 1153#define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_SHIFT 1 1154#define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_MASK 0x3 /* cf4 */ 1155#define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_SHIFT 3 1156#define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_MASK 0x1 /* cf3en */ 1157#define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_SHIFT 5 1158#define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_MASK 0x1 /* cf4en */ 1159#define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_SHIFT 6 1160#define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_MASK 0x1 /* rule7en */ 1161#define E5_YSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_SHIFT 7 1162 __le32 TTT /* reg0 */; 1163 u8 byte2 /* byte2 */; 1164 u8 byte3 /* byte3 */; 1165 u8 byte4 /* byte4 */; 1166 u8 e4_reserved7 /* byte5 */; 1167}; 1168 1169struct e5_mstorm_iscsi_task_ag_ctx 1170{ 1171 u8 cdu_validation /* cdu_validation */; 1172 u8 byte1 /* state_and_core_id */; 1173 __le16 task_cid /* icid */; 1174 u8 flags0; 1175#define E5_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF /* connection_type */ 1176#define E5_MSTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0 1177#define E5_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 /* exist_in_qm0 */ 1178#define E5_MSTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4 1179#define E5_MSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */ 1180#define E5_MSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5 1181#define E5_MSTORM_ISCSI_TASK_AG_CTX_VALID_MASK 0x1 /* bit2 */ 1182#define E5_MSTORM_ISCSI_TASK_AG_CTX_VALID_SHIFT 6 1183#define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_MASK 0x1 /* bit3 */ 1184#define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_FLAG_SHIFT 7 1185 u8 flags1; 1186#define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_MASK 0x3 /* cf0 */ 1187#define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_SHIFT 0 1188#define E5_MSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* cf1 */ 1189#define E5_MSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 2 1190#define E5_MSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 /* cf2 */ 1191#define E5_MSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 4 1192#define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_MASK 0x1 /* cf0en */ 1193#define E5_MSTORM_ISCSI_TASK_AG_CTX_TASK_CLEANUP_CF_EN_SHIFT 6 1194#define E5_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */ 1195#define E5_MSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 7 1196 u8 flags2; 1197#define E5_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 /* cf2en */ 1198#define E5_MSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 0 1199#define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */ 1200#define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 1 1201#define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */ 1202#define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 2 1203#define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */ 1204#define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 3 1205#define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */ 1206#define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 4 1207#define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */ 1208#define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 5 1209#define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */ 1210#define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 6 1211#define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */ 1212#define E5_MSTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 7 1213 u8 flags3; 1214#define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_MASK 0x1 /* bit4 */ 1215#define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_SHIFT 0 1216#define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_MASK 0x3 /* cf3 */ 1217#define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_SHIFT 1 1218#define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_MASK 0x3 /* cf4 */ 1219#define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_SHIFT 3 1220#define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_MASK 0x1 /* cf3en */ 1221#define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_SHIFT 5 1222#define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_MASK 0x1 /* cf4en */ 1223#define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_SHIFT 6 1224#define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_MASK 0x1 /* rule7en */ 1225#define E5_MSTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_SHIFT 7 1226 __le32 reg0 /* reg0 */; 1227 u8 byte2 /* byte2 */; 1228 u8 byte3 /* byte3 */; 1229 u8 byte4 /* byte4 */; 1230 u8 e4_reserved7 /* byte5 */; 1231}; 1232 1233struct e5_ustorm_iscsi_task_ag_ctx 1234{ 1235 u8 reserved /* cdu_validation */; 1236 u8 state_and_core_id /* state_and_core_id */; 1237 __le16 icid /* icid */; 1238 u8 flags0; 1239#define E5_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF /* connection_type */ 1240#define E5_USTORM_ISCSI_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0 1241#define E5_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1 /* exist_in_qm0 */ 1242#define E5_USTORM_ISCSI_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4 1243#define E5_USTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */ 1244#define E5_USTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5 1245#define E5_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_MASK 0x3 /* timer0cf */ 1246#define E5_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_SHIFT 6 1247 u8 flags1; 1248#define E5_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_MASK 0x3 /* timer1cf */ 1249#define E5_USTORM_ISCSI_TASK_AG_CTX_RESERVED1_SHIFT 0 1250#define E5_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_MASK 0x3 /* timer2cf */ 1251#define E5_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_SHIFT 2 1252#define E5_USTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 /* timer_stop_all */ 1253#define E5_USTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 4 1254#define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_MASK 0x3 /* dif_error_cf */ 1255#define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_SHIFT 6 1256 u8 flags2; 1257#define E5_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_MASK 0x1 /* cf0en */ 1258#define E5_USTORM_ISCSI_TASK_AG_CTX_HQ_SCANNED_CF_EN_SHIFT 0 1259#define E5_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_MASK 0x1 /* cf1en */ 1260#define E5_USTORM_ISCSI_TASK_AG_CTX_DISABLE_DATA_ACKED_SHIFT 1 1261#define E5_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_MASK 0x1 /* cf2en */ 1262#define E5_USTORM_ISCSI_TASK_AG_CTX_R2T2RECV_EN_SHIFT 2 1263#define E5_USTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 /* cf3en */ 1264#define E5_USTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 3 1265#define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_MASK 0x1 /* cf4en */ 1266#define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_CF_EN_SHIFT 4 1267#define E5_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_MASK 0x1 /* rule0en */ 1268#define E5_USTORM_ISCSI_TASK_AG_CTX_CMP_DATA_TOTAL_EXP_EN_SHIFT 5 1269#define E5_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */ 1270#define E5_USTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 6 1271#define E5_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_MASK 0x1 /* rule2en */ 1272#define E5_USTORM_ISCSI_TASK_AG_CTX_CMP_CONT_RCV_EXP_EN_SHIFT 7 1273 u8 flags3; 1274#define E5_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */ 1275#define E5_USTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 0 1276#define E5_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */ 1277#define E5_USTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 1 1278#define E5_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */ 1279#define E5_USTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 2 1280#define E5_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_MASK 0x1 /* rule6en */ 1281#define E5_USTORM_ISCSI_TASK_AG_CTX_RULE6EN_SHIFT 3 1282#define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_MASK 0x1 /* bit2 */ 1283#define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED1_SHIFT 4 1284#define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_MASK 0x1 /* bit3 */ 1285#define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED2_SHIFT 5 1286#define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_MASK 0x1 /* bit4 */ 1287#define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED3_SHIFT 6 1288#define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_MASK 0x1 /* rule7en */ 1289#define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED4_SHIFT 7 1290 u8 flags4; 1291#define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_MASK 0x3 /* cf5 */ 1292#define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED5_SHIFT 0 1293#define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_MASK 0x1 /* cf5en */ 1294#define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED6_SHIFT 2 1295#define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED7_MASK 0x1 /* rule8en */ 1296#define E5_USTORM_ISCSI_TASK_AG_CTX_E4_RESERVED7_SHIFT 3 1297#define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_MASK 0xF /* dif_error_type */ 1298#define E5_USTORM_ISCSI_TASK_AG_CTX_DIF_ERROR_TYPE_SHIFT 4 1299 u8 next_tid_valid /* byte2 */; 1300 u8 byte3 /* byte3 */; 1301 u8 e4_reserved8 /* byte4 */; 1302 __le32 dif_err_intervals /* dif_err_intervals */; 1303 __le32 dif_error_1st_interval /* dif_error_1st_interval */; 1304 __le32 rcv_cont_len /* reg2 */; 1305 __le32 exp_cont_len /* reg3 */; 1306 __le32 total_data_acked /* reg4 */; 1307 __le32 exp_data_acked /* reg5 */; 1308 __le16 word1 /* word1 */; 1309 __le16 next_tid /* word2 */; 1310 __le32 hdr_residual_count /* reg6 */; 1311 __le32 exp_r2t_sn /* reg7 */; 1312}; 1313 1314/* 1315 * iscsi task context 1316 */ 1317struct e5_iscsi_task_context 1318{ 1319 struct ystorm_iscsi_task_st_ctx ystorm_st_context /* ystorm storm context */; 1320 struct e5_ystorm_iscsi_task_ag_ctx ystorm_ag_context /* ystorm aggregative context */; 1321 struct regpair ystorm_ag_padding[2] /* padding */; 1322 struct tdif_task_context tdif_context /* tdif context */; 1323 struct e5_mstorm_iscsi_task_ag_ctx mstorm_ag_context /* mstorm aggregative context */; 1324 struct regpair mstorm_ag_padding[2] /* padding */; 1325 struct e5_ustorm_iscsi_task_ag_ctx ustorm_ag_context /* ustorm aggregative context */; 1326 struct mstorm_iscsi_task_st_ctx mstorm_st_context /* mstorm storm context */; 1327 struct ustorm_iscsi_task_st_ctx ustorm_st_context /* ustorm storm context */; 1328 struct rdif_task_context rdif_context /* rdif context */; 1329}; 1330 1331 1332 1333 1334 1335/* 1336 * ISCSI connection offload params passed by driver to FW in ISCSI offload ramrod 1337 */ 1338struct iscsi_conn_offload_params 1339{ 1340 struct regpair sq_pbl_addr /* PBL SQ pointer */; 1341 struct regpair r2tq_pbl_addr /* PBL R2TQ pointer */; 1342 struct regpair xhq_pbl_addr /* PBL XHQ pointer */; 1343 struct regpair uhq_pbl_addr /* PBL UHQ pointer */; 1344 __le32 initial_ack /* Initial ack, received from TCP */; 1345 __le16 physical_q0 /* Physical QM queue to be tied to logical Q0 */; 1346 __le16 physical_q1 /* Physical QM queue to be tied to logical Q1 */; 1347 u8 flags; 1348#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). */ 1349#define ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B_SHIFT 0 1350#define ISCSI_CONN_OFFLOAD_PARAMS_TARGET_MODE_MASK 0x1 /* iSCSI connect mode: 0-iSCSI Initiator, 1-iSCSI Target */ 1351#define ISCSI_CONN_OFFLOAD_PARAMS_TARGET_MODE_SHIFT 1 1352#define ISCSI_CONN_OFFLOAD_PARAMS_RESTRICTED_MODE_MASK 0x1 /* Restricted mode: 0 - un-restricted (deviating from the RFC), 1 - restricted (according to the RFC) */ 1353#define ISCSI_CONN_OFFLOAD_PARAMS_RESTRICTED_MODE_SHIFT 2 1354#define ISCSI_CONN_OFFLOAD_PARAMS_RESERVED1_MASK 0x1F /* reserved */ 1355#define ISCSI_CONN_OFFLOAD_PARAMS_RESERVED1_SHIFT 3 1356 u8 pbl_page_size_log /* Page size with PBEs log; Page Size = 2^(page_size_log+12) */; 1357 u8 pbe_page_size_log /* PBE page size with log; Page Size = 2^(page_size_log+12) */; 1358 u8 default_cq /* Default CQ used to write unsolicited data */; 1359 __le32 stat_sn /* StatSn for Target Mode only: the first Login Response StatSn value for Target mode */; 1360}; 1361 1362 1363/* 1364 * iSCSI connection statistics 1365 */ 1366struct iscsi_conn_stats_params 1367{ 1368 struct regpair iscsi_tcp_tx_packets_cnt /* Counts number of transmitted TCP packets for this iSCSI connection */; 1369 struct regpair iscsi_tcp_tx_bytes_cnt /* Counts number of transmitted TCP bytes for this iSCSI connection */; 1370 struct regpair iscsi_tcp_tx_rxmit_cnt /* Counts number of TCP retransmission events for this iSCSI connection */; 1371 struct regpair iscsi_tcp_rx_packets_cnt /* Counts number of received TCP packets for this iSCSI connection */; 1372 struct regpair iscsi_tcp_rx_bytes_cnt /* Counts number of received TCP bytes for this iSCSI connection */; 1373 struct regpair iscsi_tcp_rx_dup_ack_cnt /* Counts number of received TCP duplicate acks for this iSCSI connection */; 1374 __le32 iscsi_tcp_rx_chksum_err_cnt /* Counts number of received TCP packets with checksum err for this iSCSI connection */; 1375 __le32 reserved; 1376}; 1377 1378 1379/* 1380 * spe message header 1381 */ 1382struct iscsi_slow_path_hdr 1383{ 1384 u8 op_code /* iscsi bus-drv message opcode */; 1385 u8 flags; 1386#define ISCSI_SLOW_PATH_HDR_RESERVED0_MASK 0xF 1387#define ISCSI_SLOW_PATH_HDR_RESERVED0_SHIFT 0 1388#define ISCSI_SLOW_PATH_HDR_LAYER_CODE_MASK 0x7 /* protocol layer (L2,L3,L4,L5) */ 1389#define ISCSI_SLOW_PATH_HDR_LAYER_CODE_SHIFT 4 1390#define ISCSI_SLOW_PATH_HDR_RESERVED1_MASK 0x1 1391#define ISCSI_SLOW_PATH_HDR_RESERVED1_SHIFT 7 1392}; 1393 1394/* 1395 * ISCSI connection update params passed by driver to FW in ISCSI update ramrod 1396 */ 1397struct iscsi_conn_update_ramrod_params 1398{ 1399 struct iscsi_slow_path_hdr hdr /* spe message header. */; 1400 __le16 conn_id /* ISCSI Connection ID. (MOTI_COHEN : draft for DrvSim sake) */; 1401 __le32 fw_cid /* Context ID (cid) of the connection. (MOTI_COHEN : draft for DrvSim sake) */; 1402 u8 flags; 1403#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_HD_EN_MASK 0x1 /* Is header digest enabled */ 1404#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_HD_EN_SHIFT 0 1405#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DD_EN_MASK 0x1 /* Is data digest enabled */ 1406#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DD_EN_SHIFT 1 1407#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_INITIAL_R2T_MASK 0x1 /* Initial R2T */ 1408#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_INITIAL_R2T_SHIFT 2 1409#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_IMMEDIATE_DATA_MASK 0x1 /* Immediate data */ 1410#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_IMMEDIATE_DATA_SHIFT 3 1411#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_BLOCK_SIZE_MASK 0x1 /* 0 - 512B, 1 - 4K */ 1412#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_BLOCK_SIZE_SHIFT 4 1413#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_HOST_EN_MASK 0x1 /* 0 - no DIF, 1 - could be enabled per task */ 1414#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_HOST_EN_SHIFT 5 1415#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_IMM_EN_MASK 0x1 /* Support DIF on immediate, 1-Yes, 0-No */ 1416#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_DIF_ON_IMM_EN_SHIFT 6 1417#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 */ 1418#define ISCSI_CONN_UPDATE_RAMROD_PARAMS_LUN_MAPPER_EN_SHIFT 7 1419 u8 reserved0[3]; 1420 __le32 max_seq_size /* Maximum sequence size. Valid for TX and RX */; 1421 __le32 max_send_pdu_length /* Maximum PDU size. Valid for the TX */; 1422 __le32 max_recv_pdu_length /* Maximum PDU size. Valid for the RX */; 1423 __le32 first_seq_length /* Initial sequence length */; 1424 __le32 exp_stat_sn /* ExpStatSn - Option1 Only */; 1425 union dif_configuration_params dif_on_imme_params /* dif on immmediate params - Target mode Only */; 1426}; 1427 1428 1429/* 1430 * iSCSI CQ element 1431 */ 1432struct iscsi_cqe_common 1433{ 1434 __le16 conn_id /* Drivers connection Id */; 1435 u8 cqe_type /* Indicates CQE type (use enum iscsi_cqes_type) */; 1436 union cqe_error_status error_bitmap /* CQE error status */; 1437 __le32 reserved[3]; 1438 union iscsi_task_hdr iscsi_hdr /* iscsi header union */; 1439}; 1440 1441/* 1442 * iSCSI CQ element 1443 */ 1444struct iscsi_cqe_solicited 1445{ 1446 __le16 conn_id /* Drivers connection Id */; 1447 u8 cqe_type /* Indicates CQE type (use enum iscsi_cqes_type) */; 1448 union cqe_error_status error_bitmap /* CQE error status */; 1449 __le16 itid /* initiator itt (Initiator mode) or target ttt (Target mode) */; 1450 u8 task_type /* Task type */; 1451 u8 fw_dbg_field /* FW debug params */; 1452 u8 caused_conn_err /* Equals 1 if this TID caused the connection error, otherwise equals 0. */; 1453 u8 reserved0[3]; 1454 __le32 data_truncated_bytes /* Target Mode only: Valid only if data_truncated_err equals 1: The remaining bytes till the end of the IO. */; 1455 union iscsi_task_hdr iscsi_hdr /* iscsi header union */; 1456}; 1457 1458/* 1459 * iSCSI CQ element 1460 */ 1461struct iscsi_cqe_unsolicited 1462{ 1463 __le16 conn_id /* Drivers connection Id */; 1464 u8 cqe_type /* Indicates CQE type (use enum iscsi_cqes_type) */; 1465 union cqe_error_status error_bitmap /* CQE error status */; 1466 __le16 reserved0 /* Reserved */; 1467 u8 reserved1 /* Reserved */; 1468 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) */; 1469 __le16 rqe_opaque /* Relevant for Unsolicited CQE only: The opaque data of RQ BDQ */; 1470 __le16 reserved2[3] /* Reserved */; 1471 union iscsi_task_hdr iscsi_hdr /* iscsi header union */; 1472}; 1473 1474/* 1475 * iSCSI CQ element 1476 */ 1477union iscsi_cqe 1478{ 1479 struct iscsi_cqe_common cqe_common /* Common CQE */; 1480 struct iscsi_cqe_solicited cqe_solicited /* Solicited CQE */; 1481 struct iscsi_cqe_unsolicited cqe_unsolicited /* Unsolicited CQE. relevant only when cqe_opcode == ISCSI_CQE_TYPE_UNSOLICITED */; 1482}; 1483 1484 1485/* 1486 * iSCSI CQE type 1487 */ 1488enum iscsi_cqes_type 1489{ 1490 ISCSI_CQE_TYPE_SOLICITED=1 /* iSCSI CQE with solicited data */, 1491 ISCSI_CQE_TYPE_UNSOLICITED /* iSCSI CQE with unsolicited data */, 1492 ISCSI_CQE_TYPE_SOLICITED_WITH_SENSE /* iSCSI CQE with solicited with sense data */, 1493 ISCSI_CQE_TYPE_TASK_CLEANUP /* iSCSI CQE task cleanup */, 1494 ISCSI_CQE_TYPE_DUMMY /* iSCSI Dummy CQE */, 1495 MAX_ISCSI_CQES_TYPE 1496}; 1497 1498 1499 1500 1501 1502/* 1503 * iSCSI CQE type 1504 */ 1505enum iscsi_cqe_unsolicited_type 1506{ 1507 ISCSI_CQE_UNSOLICITED_NONE /* iSCSI CQE with unsolicited data */, 1508 ISCSI_CQE_UNSOLICITED_SINGLE /* iSCSI CQE with unsolicited data */, 1509 ISCSI_CQE_UNSOLICITED_FIRST /* iSCSI CQE with unsolicited data */, 1510 ISCSI_CQE_UNSOLICITED_MIDDLE /* iSCSI CQE with unsolicited data */, 1511 ISCSI_CQE_UNSOLICITED_LAST /* iSCSI CQE with unsolicited data */, 1512 MAX_ISCSI_CQE_UNSOLICITED_TYPE 1513}; 1514 1515 1516 1517 1518/* 1519 * iscsi debug modes 1520 */ 1521struct iscsi_debug_modes 1522{ 1523 u8 flags; 1524#define ISCSI_DEBUG_MODES_ASSERT_IF_RX_CONN_ERROR_MASK 0x1 /* Assert on Rx connection error */ 1525#define ISCSI_DEBUG_MODES_ASSERT_IF_RX_CONN_ERROR_SHIFT 0 1526#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_RESET_MASK 0x1 /* Assert if TCP RESET arrived */ 1527#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_RESET_SHIFT 1 1528#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_FIN_MASK 0x1 /* Assert if TCP FIN arrived */ 1529#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_FIN_SHIFT 2 1530#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_CLEANUP_MASK 0x1 /* Assert if cleanup flow */ 1531#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_CLEANUP_SHIFT 3 1532#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_REJECT_OR_ASYNC_MASK 0x1 /* Assert if REJECT PDU or ASYNC PDU arrived */ 1533#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_REJECT_OR_ASYNC_SHIFT 4 1534#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_NOP_MASK 0x1 /* Assert if NOP IN PDU or NOP OUT PDU arrived */ 1535#define ISCSI_DEBUG_MODES_ASSERT_IF_RECV_NOP_SHIFT 5 1536#define ISCSI_DEBUG_MODES_ASSERT_IF_DIF_OR_DATA_DIGEST_ERROR_MASK 0x1 /* Assert if DIF or data digest error */ 1537#define ISCSI_DEBUG_MODES_ASSERT_IF_DIF_OR_DATA_DIGEST_ERROR_SHIFT 6 1538#define ISCSI_DEBUG_MODES_ASSERT_IF_HQ_CORRUPT_MASK 0x1 /* Assert if HQ corruption detected */ 1539#define ISCSI_DEBUG_MODES_ASSERT_IF_HQ_CORRUPT_SHIFT 7 1540}; 1541 1542 1543 1544/* 1545 * iSCSI kernel completion queue IDs 1546 */ 1547enum iscsi_eqe_opcode 1548{ 1549 ISCSI_EVENT_TYPE_INIT_FUNC=0 /* iSCSI response after init Ramrod */, 1550 ISCSI_EVENT_TYPE_DESTROY_FUNC /* iSCSI response after destroy Ramrod */, 1551 ISCSI_EVENT_TYPE_OFFLOAD_CONN /* iSCSI response after option 2 offload Ramrod */, 1552 ISCSI_EVENT_TYPE_UPDATE_CONN /* iSCSI response after update Ramrod */, 1553 ISCSI_EVENT_TYPE_CLEAR_SQ /* iSCSI response after clear sq Ramrod */, 1554 ISCSI_EVENT_TYPE_TERMINATE_CONN /* iSCSI response after termination Ramrod */, 1555 ISCSI_EVENT_TYPE_MAC_UPDATE_CONN /* iSCSI response after MAC address update Ramrod */, 1556 ISCSI_EVENT_TYPE_COLLECT_STATS_CONN /* iSCSI response after collecting connection statistics Ramrod */, 1557 ISCSI_EVENT_TYPE_ASYN_CONNECT_COMPLETE /* iSCSI response after option 2 connect completed (A-syn EQE) */, 1558 ISCSI_EVENT_TYPE_ASYN_TERMINATE_DONE /* iSCSI response after option 2 termination completed (A-syn EQE) */, 1559 ISCSI_EVENT_TYPE_START_OF_ERROR_TYPES=10 /* Never returned in EQE, used to separate Regular event types from Error event types */, 1560 ISCSI_EVENT_TYPE_ASYN_ABORT_RCVD /* iSCSI abort response after TCP RST packet recieve (A-syn EQE) */, 1561 ISCSI_EVENT_TYPE_ASYN_CLOSE_RCVD /* iSCSI response after close receive (A-syn EQE) */, 1562 ISCSI_EVENT_TYPE_ASYN_SYN_RCVD /* iSCSI response after TCP SYN+ACK packet receive (A-syn EQE) */, 1563 ISCSI_EVENT_TYPE_ASYN_MAX_RT_TIME /* iSCSI error - tcp max retransmit time (A-syn EQE) */, 1564 ISCSI_EVENT_TYPE_ASYN_MAX_RT_CNT /* iSCSI error - tcp max retransmit count (A-syn EQE) */, 1565 ISCSI_EVENT_TYPE_ASYN_MAX_KA_PROBES_CNT /* iSCSI error - tcp ka probes count (A-syn EQE) */, 1566 ISCSI_EVENT_TYPE_ASYN_FIN_WAIT2 /* iSCSI error - tcp fin wait 2 (A-syn EQE) */, 1567 ISCSI_EVENT_TYPE_ISCSI_CONN_ERROR /* iSCSI error response (A-syn EQE) */, 1568 ISCSI_EVENT_TYPE_TCP_CONN_ERROR /* iSCSI error - tcp error (A-syn EQE) */, 1569 MAX_ISCSI_EQE_OPCODE 1570}; 1571 1572 1573/* 1574 * iSCSI EQE and CQE completion status 1575 */ 1576enum iscsi_error_types 1577{ 1578 ISCSI_STATUS_NONE=0, 1579 ISCSI_CQE_ERROR_UNSOLICITED_RCV_ON_INVALID_CONN=1, 1580 ISCSI_CONN_ERROR_TASK_CID_MISMATCH /* iSCSI connection error - Corrupted Task context */, 1581 ISCSI_CONN_ERROR_TASK_NOT_VALID /* iSCSI connection error - The task is not valid */, 1582 ISCSI_CONN_ERROR_RQ_RING_IS_FULL /* iSCSI connection error - RQ full */, 1583 ISCSI_CONN_ERROR_CMDQ_RING_IS_FULL /* iSCSI connection error - CMDQ full (Target only) */, 1584 ISCSI_CONN_ERROR_HQE_CACHING_FAILED /* iSCSI connection error - HQ error */, 1585 ISCSI_CONN_ERROR_HEADER_DIGEST_ERROR /* iSCSI connection error - Header digest error */, 1586 ISCSI_CONN_ERROR_LOCAL_COMPLETION_ERROR /* iSCSI connection error - Local completion bit is not correct (A-syn EQE) */, 1587 ISCSI_CONN_ERROR_DATA_OVERRUN /* iSCSI connection error - data overrun */, 1588 ISCSI_CONN_ERROR_OUT_OF_SGES_ERROR /* iSCSI connection error - out of sges in task context */, 1589 ISCSI_CONN_ERROR_IP_OPTIONS_ERROR /* TCP connection error - IP option error */, 1590 ISCSI_CONN_ERROR_PRS_ERRORS /* TCP connection error - error indication form parser */, 1591 ISCSI_CONN_ERROR_CONNECT_INVALID_TCP_OPTION /* TCP connection error - tcp options error(option 2 only) */, 1592 ISCSI_CONN_ERROR_TCP_IP_FRAGMENT_ERROR /* TCP connection error - IP fragmentation error */, 1593 ISCSI_CONN_ERROR_PROTOCOL_ERR_AHS_LEN /* iSCSI connection error - invalid AHS length (Target only) */, 1594 ISCSI_CONN_ERROR_PROTOCOL_ERR_AHS_TYPE /* iSCSI connection error - invalid AHS type (Target only) */, 1595 ISCSI_CONN_ERROR_PROTOCOL_ERR_ITT_OUT_OF_RANGE /* iSCSI connection error - invalid ITT */, 1596 ISCSI_CONN_ERROR_PROTOCOL_ERR_TTT_OUT_OF_RANGE /* iSCSI connection error - invalid TTT (Target only) */, 1597 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SEG_LEN_EXCEEDS_PDU_SIZE /* iSCSI connection error - PDU data_seg_len > max receive pdu size */, 1598 ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_OPCODE /* iSCSI connection error - invalid PDU opcode */, 1599 ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_OPCODE_BEFORE_UPDATE /* iSCSI connection error - invalid PDU opcode before update ramrod (Option 2 only) */, 1600 ISCSI_CONN_ERROR_UNVALID_NOPIN_DSL /* iSCSI connection error - NOPIN dsl > 0 and ITT = 0xffffffff (Initiator only) */, 1601 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_CARRIES_NO_DATA /* iSCSI connection error - R2T dsl > 0 (Initiator only) */, 1602 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SN /* iSCSI connection error - DATA-SN error */, 1603 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_IN_TTT /* iSCSI connection error - DATA-IN TTT error (Initiator only) */, 1604 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_OUT_ITT /* iSCSI connection error - DATA-OUT ITT error (Target only) */, 1605 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_TTT /* iSCSI connection error - R2T TTT error (Initiator only) */, 1606 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_BUFFER_OFFSET /* iSCSI connection error - R2T buffer offset error (Initiator only) */, 1607 ISCSI_CONN_ERROR_PROTOCOL_ERR_BUFFER_OFFSET_OOO /* iSCSI connection error - DATA PDU buffer offset error */, 1608 ISCSI_CONN_ERROR_PROTOCOL_ERR_R2T_SN /* iSCSI connection error - R2T SN error (Initiator only) */, 1609 ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_0 /* iSCSI connection error - R2T desired data transfer length = 0 (Initiator only) */, 1610 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) */, 1611 ISCSI_CONN_ERROR_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_2 /* iSCSI connection error - R2T desired data transfer length + buffer offset > task size (Initiator only) */, 1612 ISCSI_CONN_ERROR_PROTOCOL_ERR_LUN /* iSCSI connection error - R2T unvalid LUN (Initiator only) */, 1613 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) */, 1614 ISCSI_CONN_ERROR_PROTOCOL_ERR_F_BIT_ZERO_S_BIT_ONE /* iSCSI connection error - S-bit and final bit = 1 (Initiator only) */, 1615 ISCSI_CONN_ERROR_PROTOCOL_ERR_EXP_STAT_SN /* iSCSI connection error - STAT SN error (Initiator only) */, 1616 ISCSI_CONN_ERROR_PROTOCOL_ERR_DSL_NOT_ZERO /* iSCSI connection error - TMF or LOGOUT PDUs dsl > 0 (Initiator only) */, 1617 ISCSI_CONN_ERROR_PROTOCOL_ERR_INVALID_DSL /* iSCSI connection error - CMD PDU dsl>0 while immediate data is disabled (Target only) */, 1618 ISCSI_CONN_ERROR_PROTOCOL_ERR_DATA_SEG_LEN_TOO_BIG /* iSCSI connection error - Data In overrun (Initiator only) */, 1619 ISCSI_CONN_ERROR_PROTOCOL_ERR_OUTSTANDING_R2T_COUNT /* iSCSI connection error - >1 outstanding R2T (Initiator only) */, 1620 ISCSI_CONN_ERROR_PROTOCOL_ERR_DIF_TX /* iSCSI connection error - DIF Tx error + DIF error drop is enabled (Target only) */, 1621 ISCSI_CONN_ERROR_SENSE_DATA_LENGTH /* iSCSI connection error - Sense data length > 256 (Initiator only) */, 1622 ISCSI_CONN_ERROR_DATA_PLACEMENT_ERROR /* iSCSI connection error - Data placement error */, 1623 ISCSI_CONN_ERROR_INVALID_ITT /* iSCSI connection error - Invalid ITT (Target Only) */, 1624 ISCSI_ERROR_UNKNOWN /* iSCSI connection error */, 1625 MAX_ISCSI_ERROR_TYPES 1626}; 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637/* 1638 * iSCSI Ramrod Command IDs 1639 */ 1640enum iscsi_ramrod_cmd_id 1641{ 1642 ISCSI_RAMROD_CMD_ID_UNUSED=0, 1643 ISCSI_RAMROD_CMD_ID_INIT_FUNC=1 /* iSCSI function init Ramrod */, 1644 ISCSI_RAMROD_CMD_ID_DESTROY_FUNC=2 /* iSCSI function destroy Ramrod */, 1645 ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN=3 /* iSCSI connection offload Ramrod */, 1646 ISCSI_RAMROD_CMD_ID_UPDATE_CONN=4 /* iSCSI connection update Ramrod */, 1647 ISCSI_RAMROD_CMD_ID_TERMINATION_CONN=5 /* iSCSI connection offload Ramrod. Command ID known only to FW and VBD */, 1648 ISCSI_RAMROD_CMD_ID_CLEAR_SQ=6 /* iSCSI connection clear-sq ramrod. */, 1649 ISCSI_RAMROD_CMD_ID_MAC_UPDATE=7 /* iSCSI connection update MAC address ramrod. */, 1650 ISCSI_RAMROD_CMD_ID_CONN_STATS=8 /* iSCSI collect connection statistics ramrod. */, 1651 MAX_ISCSI_RAMROD_CMD_ID 1652}; 1653 1654 1655 1656 1657 1658 1659 1660/* 1661 * ISCSI connection termination request 1662 */ 1663struct iscsi_spe_conn_mac_update 1664{ 1665 struct iscsi_slow_path_hdr hdr /* spe message header. */; 1666 __le16 conn_id /* ISCSI Connection ID. */; 1667 __le32 fw_cid /* Context ID (cid) of the connection. */; 1668 __le16 remote_mac_addr_lo /* new remote mac address lo */; 1669 __le16 remote_mac_addr_mid /* new remote mac address mid */; 1670 __le16 remote_mac_addr_hi /* new remote mac address hi */; 1671 u8 reserved0[2]; 1672}; 1673 1674 1675/* 1676 * ISCSI and TCP connection(Option 1) offload params passed by driver to FW in ISCSI offload ramrod 1677 */ 1678struct iscsi_spe_conn_offload 1679{ 1680 struct iscsi_slow_path_hdr hdr /* spe message header. */; 1681 __le16 conn_id /* ISCSI Connection ID. */; 1682 __le32 fw_cid; 1683 struct iscsi_conn_offload_params iscsi /* iSCSI session offload params */; 1684 struct tcp_offload_params tcp /* iSCSI session offload params */; 1685}; 1686 1687 1688/* 1689 * ISCSI and TCP connection(Option 2) offload params passed by driver to FW in ISCSI offload ramrod 1690 */ 1691struct iscsi_spe_conn_offload_option2 1692{ 1693 struct iscsi_slow_path_hdr hdr /* spe message header. */; 1694 __le16 conn_id /* ISCSI Connection ID. */; 1695 __le32 fw_cid; 1696 struct iscsi_conn_offload_params iscsi /* iSCSI session offload params */; 1697 struct tcp_offload_params_opt2 tcp /* iSCSI session offload params */; 1698}; 1699 1700 1701/* 1702 * ISCSI collect connection statistics request 1703 */ 1704struct iscsi_spe_conn_statistics 1705{ 1706 struct iscsi_slow_path_hdr hdr /* spe message header. */; 1707 __le16 conn_id /* ISCSI Connection ID. */; 1708 __le32 fw_cid /* Context ID (cid) of the connection. */; 1709 u8 reset_stats /* Indicates whether to reset the connection statistics. */; 1710 u8 reserved0[7]; 1711 struct regpair stats_cnts_addr /* cmdq and unsolicited counters termination params */; 1712}; 1713 1714 1715/* 1716 * ISCSI connection termination request 1717 */ 1718struct iscsi_spe_conn_termination 1719{ 1720 struct iscsi_slow_path_hdr hdr /* spe message header. */; 1721 __le16 conn_id /* ISCSI Connection ID. */; 1722 __le32 fw_cid /* Context ID (cid) of the connection. */; 1723 u8 abortive /* Mark termination as abort(reset) flow */; 1724 u8 reserved0[7]; 1725 struct regpair queue_cnts_addr /* cmdq and unsolicited counters termination params */; 1726 struct regpair query_params_addr /* query_params_ptr */; 1727}; 1728 1729 1730/* 1731 * iSCSI firmware function destroy parameters 1732 */ 1733struct iscsi_spe_func_dstry 1734{ 1735 struct iscsi_slow_path_hdr hdr /* spe message header. */; 1736 __le16 reserved0; 1737 __le32 reserved1; 1738}; 1739 1740 1741/* 1742 * iSCSI firmware function init parameters 1743 */ 1744struct iscsi_spe_func_init 1745{ 1746 struct iscsi_slow_path_hdr hdr /* spe message header. */; 1747 __le16 half_way_close_timeout /* Half Way Close Timeout in Option 2 Close */; 1748 u8 num_sq_pages_in_ring /* Number of entries in the SQ PBL. Provided by driver at function init spe */; 1749 u8 num_r2tq_pages_in_ring /* Number of entries in the R2TQ PBL. Provided by driver at function init spe */; 1750 u8 num_uhq_pages_in_ring /* Number of entries in the uHQ PBL (xHQ entries is X2). Provided by driver at function init spe */; 1751 u8 ll2_rx_queue_id /* Queue ID of the Light-L2 Rx Queue */; 1752 u8 flags; 1753#define ISCSI_SPE_FUNC_INIT_COUNTERS_EN_MASK 0x1 /* Enable counters - function and connection counters */ 1754#define ISCSI_SPE_FUNC_INIT_COUNTERS_EN_SHIFT 0 1755#define ISCSI_SPE_FUNC_INIT_RESERVED0_MASK 0x7F /* reserved */ 1756#define ISCSI_SPE_FUNC_INIT_RESERVED0_SHIFT 1 1757 struct iscsi_debug_modes debug_mode /* Use iscsi_debug_mode flags */; 1758 __le16 reserved1; 1759 __le32 reserved2; 1760 struct scsi_init_func_params func_params /* Common SCSI init params passed by driver to FW in function init ramrod */; 1761 struct scsi_init_func_queues q_params /* SCSI RQ/CQ firmware function init parameters */; 1762}; 1763 1764 1765 1766/* 1767 * iSCSI task type 1768 */ 1769enum iscsi_task_type 1770{ 1771 ISCSI_TASK_TYPE_INITIATOR_WRITE, 1772 ISCSI_TASK_TYPE_INITIATOR_READ, 1773 ISCSI_TASK_TYPE_MIDPATH, 1774 ISCSI_TASK_TYPE_UNSOLIC, 1775 ISCSI_TASK_TYPE_EXCHCLEANUP, 1776 ISCSI_TASK_TYPE_IRRELEVANT, 1777 ISCSI_TASK_TYPE_TARGET_WRITE, 1778 ISCSI_TASK_TYPE_TARGET_READ, 1779 ISCSI_TASK_TYPE_TARGET_RESPONSE, 1780 ISCSI_TASK_TYPE_LOGIN_RESPONSE, 1781 ISCSI_TASK_TYPE_TARGET_IMM_W_DIF, 1782 MAX_ISCSI_TASK_TYPE 1783}; 1784 1785 1786 1787 1788 1789 1790/* 1791 * iSCSI DesiredDataTransferLength/ttt union 1792 */ 1793union iscsi_ttt_txlen_union 1794{ 1795 __le32 desired_tx_len /* desired data transfer length */; 1796 __le32 ttt /* target transfer tag */; 1797}; 1798 1799 1800/* 1801 * iSCSI uHQ element 1802 */ 1803struct iscsi_uhqe 1804{ 1805 __le32 reg1; 1806#define ISCSI_UHQE_PDU_PAYLOAD_LEN_MASK 0xFFFFF /* iSCSI payload (doesnt include padding or digest) or AHS length */ 1807#define ISCSI_UHQE_PDU_PAYLOAD_LEN_SHIFT 0 1808#define ISCSI_UHQE_LOCAL_COMP_MASK 0x1 /* local compleiton flag */ 1809#define ISCSI_UHQE_LOCAL_COMP_SHIFT 20 1810#define ISCSI_UHQE_TOGGLE_BIT_MASK 0x1 /* toggle bit to protect from uHQ full */ 1811#define ISCSI_UHQE_TOGGLE_BIT_SHIFT 21 1812#define ISCSI_UHQE_PURE_PAYLOAD_MASK 0x1 /* indicates whether pdu_payload_len contains pure payload length. if not, pdu_payload_len is AHS length */ 1813#define ISCSI_UHQE_PURE_PAYLOAD_SHIFT 22 1814#define ISCSI_UHQE_LOGIN_RESPONSE_PDU_MASK 0x1 /* indicates login pdu */ 1815#define ISCSI_UHQE_LOGIN_RESPONSE_PDU_SHIFT 23 1816#define ISCSI_UHQE_TASK_ID_HI_MASK 0xFF /* most significant byte of task_id */ 1817#define ISCSI_UHQE_TASK_ID_HI_SHIFT 24 1818 __le32 reg2; 1819#define ISCSI_UHQE_BUFFER_OFFSET_MASK 0xFFFFFF /* absolute offset in task */ 1820#define ISCSI_UHQE_BUFFER_OFFSET_SHIFT 0 1821#define ISCSI_UHQE_TASK_ID_LO_MASK 0xFF /* least significant byte of task_id */ 1822#define ISCSI_UHQE_TASK_ID_LO_SHIFT 24 1823}; 1824 1825 1826/* 1827 * iSCSI WQ element 1828 */ 1829struct iscsi_wqe 1830{ 1831 __le16 task_id /* The task identifier (itt) includes all the relevant information required for the task processing */; 1832 u8 flags; 1833#define ISCSI_WQE_WQE_TYPE_MASK 0x7 /* Wqe type [use iscsi_wqe_type] */ 1834#define ISCSI_WQE_WQE_TYPE_SHIFT 0 1835#define ISCSI_WQE_NUM_SGES_MASK 0xF /* The driver will give a hint about sizes of SGEs for better credits evaluation at Xstorm */ 1836#define ISCSI_WQE_NUM_SGES_SHIFT 3 1837#define ISCSI_WQE_RESPONSE_MASK 0x1 /* 1 if this Wqe triggers a response and advances stat_sn, 0 otherwise */ 1838#define ISCSI_WQE_RESPONSE_SHIFT 7 1839 struct iscsi_dif_flags prot_flags /* Task data-integrity flags (protection) */; 1840 __le32 contlen_cdbsize; 1841#define ISCSI_WQE_CONT_LEN_MASK 0xFFFFFF /* expected/desired data transfer length */ 1842#define ISCSI_WQE_CONT_LEN_SHIFT 0 1843#define ISCSI_WQE_CDB_SIZE_MASK 0xFF /* Initiator mode only: equals SCSI command CDB size if extended CDB is used, otherwise equals zero. */ 1844#define ISCSI_WQE_CDB_SIZE_SHIFT 24 1845}; 1846 1847 1848/* 1849 * iSCSI wqe type 1850 */ 1851enum iscsi_wqe_type 1852{ 1853 ISCSI_WQE_TYPE_NORMAL /* iSCSI WQE type normal. excluding status bit in target mode. */, 1854 ISCSI_WQE_TYPE_TASK_CLEANUP /* iSCSI WQE type task cleanup */, 1855 ISCSI_WQE_TYPE_MIDDLE_PATH /* iSCSI WQE type middle path */, 1856 ISCSI_WQE_TYPE_LOGIN /* iSCSI WQE type login */, 1857 ISCSI_WQE_TYPE_FIRST_R2T_CONT /* iSCSI WQE type First Write Continuation (Target) */, 1858 ISCSI_WQE_TYPE_NONFIRST_R2T_CONT /* iSCSI WQE type Non-First Write Continuation (Target) */, 1859 ISCSI_WQE_TYPE_RESPONSE /* iSCSI WQE type SCSI response */, 1860 MAX_ISCSI_WQE_TYPE 1861}; 1862 1863 1864/* 1865 * iSCSI xHQ element 1866 */ 1867struct iscsi_xhqe 1868{ 1869 union iscsi_ttt_txlen_union ttt_or_txlen /* iSCSI DesiredDataTransferLength/ttt union */; 1870 __le32 exp_stat_sn /* expected StatSn */; 1871 struct iscsi_dif_flags prot_flags /* Task data-integrity flags (protection) */; 1872 u8 total_ahs_length /* Initiator mode only: Total AHS Length. greater than zero if and only if PDU is SCSI command and CDB > 16 */; 1873 u8 opcode /* Type opcode for command PDU */; 1874 u8 flags; 1875#define ISCSI_XHQE_FINAL_MASK 0x1 /* The Final(F) for this PDU */ 1876#define ISCSI_XHQE_FINAL_SHIFT 0 1877#define ISCSI_XHQE_STATUS_BIT_MASK 0x1 /* Whether this PDU is Data-In PDU with status_bit = 1 */ 1878#define ISCSI_XHQE_STATUS_BIT_SHIFT 1 1879#define ISCSI_XHQE_NUM_SGES_MASK 0xF /* If Predicted IO equals Min(8, number of SGEs in SGL), otherwise equals 0 */ 1880#define ISCSI_XHQE_NUM_SGES_SHIFT 2 1881#define ISCSI_XHQE_RESERVED0_MASK 0x3 /* reserved */ 1882#define ISCSI_XHQE_RESERVED0_SHIFT 6 1883 union iscsi_seq_num seq_num /* R2T/DataSN sequence number */; 1884 __le16 reserved1; 1885}; 1886 1887 1888 1889/* 1890 * Per PF iSCSI receive path statistics - mStorm RAM structure 1891 */ 1892struct mstorm_iscsi_stats_drv 1893{ 1894 struct regpair iscsi_rx_dropped_PDUs_task_not_valid /* Number of Rx silently dropped PDUs due to task not valid */; 1895 struct regpair iscsi_rx_dup_ack_cnt /* Received Dup-ACKs - after 3 dup ack, the counter doesnt count the same dup ack */; 1896}; 1897 1898 1899 1900/* 1901 * Per PF iSCSI transmit path statistics - pStorm RAM structure 1902 */ 1903struct pstorm_iscsi_stats_drv 1904{ 1905 struct regpair iscsi_tx_bytes_cnt /* Counts the number of tx bytes that were transmitted */; 1906 struct regpair iscsi_tx_packet_cnt /* Counts the number of tx packets that were transmitted */; 1907}; 1908 1909 1910 1911/* 1912 * Per PF iSCSI receive path statistics - tStorm RAM structure 1913 */ 1914struct tstorm_iscsi_stats_drv 1915{ 1916 struct regpair iscsi_rx_bytes_cnt /* Counts the number of rx bytes that were received */; 1917 struct regpair iscsi_rx_packet_cnt /* Counts the number of rx packets that were received */; 1918 struct regpair iscsi_rx_new_ooo_isle_events_cnt /* Counts the number of new out-of-order isle event */; 1919 struct regpair iscsi_rx_tcp_payload_bytes_cnt /* Received In-Order TCP Payload Bytes */; 1920 struct regpair iscsi_rx_tcp_pkt_cnt /* Received In-Order TCP Packets */; 1921 struct regpair iscsi_rx_pure_ack_cnt /* Received Pure-ACKs */; 1922 __le32 iscsi_cmdq_threshold_cnt /* Counts the number of times elements in cmdQ reached threshold */; 1923 __le32 iscsi_rq_threshold_cnt /* Counts the number of times elements in RQQ reached threshold */; 1924 __le32 iscsi_immq_threshold_cnt /* Counts the number of times elements in immQ reached threshold */; 1925}; 1926 1927 1928/* 1929 * Per PF iSCSI receive path statistics - uStorm RAM structure 1930 */ 1931struct ustorm_iscsi_stats_drv 1932{ 1933 struct regpair iscsi_rx_data_pdu_cnt /* Number of data PDUs that were received */; 1934 struct regpair iscsi_rx_r2t_pdu_cnt /* Number of R2T PDUs that were received */; 1935 struct regpair iscsi_rx_total_pdu_cnt /* Number of total PDUs that were received */; 1936}; 1937 1938 1939 1940/* 1941 * Per PF iSCSI transmit path statistics - xStorm RAM structure 1942 */ 1943struct xstorm_iscsi_stats_drv 1944{ 1945 struct regpair iscsi_tx_go_to_slow_start_event_cnt /* Number of times slow start event occurred */; 1946 struct regpair iscsi_tx_fast_retransmit_event_cnt /* Number of times fast retransmit event occurred */; 1947 struct regpair iscsi_tx_pure_ack_cnt /* Transmitted Pure-ACKs */; 1948 struct regpair iscsi_tx_delayed_ack_cnt /* Transmitted Delayed ACKs */; 1949}; 1950 1951 1952/* 1953 * Per PF iSCSI transmit path statistics - yStorm RAM structure 1954 */ 1955struct ystorm_iscsi_stats_drv 1956{ 1957 struct regpair iscsi_tx_data_pdu_cnt /* Number of data PDUs that were transmitted */; 1958 struct regpair iscsi_tx_r2t_pdu_cnt /* Number of R2T PDUs that were transmitted */; 1959 struct regpair iscsi_tx_total_pdu_cnt /* Number of total PDUs that were transmitted */; 1960 struct regpair iscsi_tx_tcp_payload_bytes_cnt /* Transmitted In-Order TCP Payload Bytes */; 1961 struct regpair iscsi_tx_tcp_pkt_cnt /* Transmitted In-Order TCP Packets */; 1962}; 1963 1964 1965 1966 1967 1968 1969struct e4_tstorm_iscsi_task_ag_ctx 1970{ 1971 u8 byte0 /* cdu_validation */; 1972 u8 byte1 /* state */; 1973 __le16 word0 /* icid */; 1974 u8 flags0; 1975#define E4_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF /* connection_type */ 1976#define E4_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0 1977#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 /* exist_in_qm0 */ 1978#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4 1979#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */ 1980#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5 1981#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT2_MASK 0x1 /* bit2 */ 1982#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT2_SHIFT 6 1983#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1 /* bit3 */ 1984#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7 1985 u8 flags1; 1986#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 /* bit4 */ 1987#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0 1988#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT5_MASK 0x1 /* bit5 */ 1989#define E4_TSTORM_ISCSI_TASK_AG_CTX_BIT5_SHIFT 1 1990#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 /* timer0cf */ 1991#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 2 1992#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* timer1cf */ 1993#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 4 1994#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 /* timer2cf */ 1995#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 6 1996 u8 flags2; 1997#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 /* timer_stop_all */ 1998#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 0 1999#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4_MASK 0x3 /* cf4 */ 2000#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4_SHIFT 2 2001#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5_MASK 0x3 /* cf5 */ 2002#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5_SHIFT 4 2003#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6_MASK 0x3 /* cf6 */ 2004#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6_SHIFT 6 2005 u8 flags3; 2006#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7_MASK 0x3 /* cf7 */ 2007#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7_SHIFT 0 2008#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 /* cf0en */ 2009#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 2 2010#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */ 2011#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 3 2012#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 /* cf2en */ 2013#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 4 2014#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 /* cf3en */ 2015#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 5 2016#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_MASK 0x1 /* cf4en */ 2017#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_SHIFT 6 2018#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_MASK 0x1 /* cf5en */ 2019#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_SHIFT 7 2020 u8 flags4; 2021#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_MASK 0x1 /* cf6en */ 2022#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_SHIFT 0 2023#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_MASK 0x1 /* cf7en */ 2024#define E4_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_SHIFT 1 2025#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */ 2026#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 2 2027#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */ 2028#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 3 2029#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */ 2030#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 4 2031#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */ 2032#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 5 2033#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */ 2034#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 6 2035#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */ 2036#define E4_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 7 2037 u8 byte2 /* byte2 */; 2038 __le16 word1 /* word1 */; 2039 __le32 reg0 /* reg0 */; 2040 u8 byte3 /* byte3 */; 2041 u8 byte4 /* byte4 */; 2042 __le16 word2 /* word2 */; 2043 __le16 word3 /* word3 */; 2044 __le16 word4 /* word4 */; 2045 __le32 reg1 /* reg1 */; 2046 __le32 reg2 /* reg2 */; 2047}; 2048 2049 2050 2051 2052 2053struct e5_tstorm_iscsi_task_ag_ctx 2054{ 2055 u8 byte0 /* cdu_validation */; 2056 u8 byte1 /* state_and_core_id */; 2057 __le16 word0 /* icid */; 2058 u8 flags0; 2059#define E5_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_MASK 0xF /* connection_type */ 2060#define E5_TSTORM_ISCSI_TASK_AG_CTX_NIBBLE0_SHIFT 0 2061#define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT0_MASK 0x1 /* exist_in_qm0 */ 2062#define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT0_SHIFT 4 2063#define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT1_MASK 0x1 /* exist_in_qm1 */ 2064#define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT1_SHIFT 5 2065#define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT2_MASK 0x1 /* bit2 */ 2066#define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT2_SHIFT 6 2067#define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT3_MASK 0x1 /* bit3 */ 2068#define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT3_SHIFT 7 2069 u8 flags1; 2070#define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT4_MASK 0x1 /* bit4 */ 2071#define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT4_SHIFT 0 2072#define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT5_MASK 0x1 /* bit5 */ 2073#define E5_TSTORM_ISCSI_TASK_AG_CTX_BIT5_SHIFT 1 2074#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF0_MASK 0x3 /* timer0cf */ 2075#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF0_SHIFT 2 2076#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF1_MASK 0x3 /* timer1cf */ 2077#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF1_SHIFT 4 2078#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF2_MASK 0x3 /* timer2cf */ 2079#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF2_SHIFT 6 2080 u8 flags2; 2081#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF3_MASK 0x3 /* timer_stop_all */ 2082#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF3_SHIFT 0 2083#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF4_MASK 0x3 /* cf4 */ 2084#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF4_SHIFT 2 2085#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF5_MASK 0x3 /* cf5 */ 2086#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF5_SHIFT 4 2087#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF6_MASK 0x3 /* cf6 */ 2088#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF6_SHIFT 6 2089 u8 flags3; 2090#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF7_MASK 0x3 /* cf7 */ 2091#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF7_SHIFT 0 2092#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_MASK 0x1 /* cf0en */ 2093#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF0EN_SHIFT 2 2094#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_MASK 0x1 /* cf1en */ 2095#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF1EN_SHIFT 3 2096#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_MASK 0x1 /* cf2en */ 2097#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF2EN_SHIFT 4 2098#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_MASK 0x1 /* cf3en */ 2099#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF3EN_SHIFT 5 2100#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_MASK 0x1 /* cf4en */ 2101#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF4EN_SHIFT 6 2102#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_MASK 0x1 /* cf5en */ 2103#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF5EN_SHIFT 7 2104 u8 flags4; 2105#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_MASK 0x1 /* cf6en */ 2106#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF6EN_SHIFT 0 2107#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_MASK 0x1 /* cf7en */ 2108#define E5_TSTORM_ISCSI_TASK_AG_CTX_CF7EN_SHIFT 1 2109#define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_MASK 0x1 /* rule0en */ 2110#define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE0EN_SHIFT 2 2111#define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_MASK 0x1 /* rule1en */ 2112#define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE1EN_SHIFT 3 2113#define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_MASK 0x1 /* rule2en */ 2114#define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE2EN_SHIFT 4 2115#define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_MASK 0x1 /* rule3en */ 2116#define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE3EN_SHIFT 5 2117#define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_MASK 0x1 /* rule4en */ 2118#define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE4EN_SHIFT 6 2119#define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_MASK 0x1 /* rule5en */ 2120#define E5_TSTORM_ISCSI_TASK_AG_CTX_RULE5EN_SHIFT 7 2121 u8 byte2 /* byte2 */; 2122 __le16 word1 /* word1 */; 2123 __le32 reg0 /* reg0 */; 2124 u8 byte3 /* regpair0 */; 2125 u8 byte4 /* byte4 */; 2126 __le16 word2 /* word2 */; 2127 __le16 word3 /* word3 */; 2128 __le16 word4 /* word4 */; 2129 __le32 reg1 /* regpair1 */; 2130 __le32 reg2 /* reg2 */; 2131}; 2132 2133 2134 2135 2136/* 2137 * iSCSI doorbell data 2138 */ 2139struct iscsi_db_data 2140{ 2141 u8 params; 2142#define ISCSI_DB_DATA_DEST_MASK 0x3 /* destination of doorbell (use enum db_dest) */ 2143#define ISCSI_DB_DATA_DEST_SHIFT 0 2144#define ISCSI_DB_DATA_AGG_CMD_MASK 0x3 /* aggregative command to CM (use enum db_agg_cmd_sel) */ 2145#define ISCSI_DB_DATA_AGG_CMD_SHIFT 2 2146#define ISCSI_DB_DATA_BYPASS_EN_MASK 0x1 /* enable QM bypass */ 2147#define ISCSI_DB_DATA_BYPASS_EN_SHIFT 4 2148#define ISCSI_DB_DATA_RESERVED_MASK 0x1 2149#define ISCSI_DB_DATA_RESERVED_SHIFT 5 2150#define ISCSI_DB_DATA_AGG_VAL_SEL_MASK 0x3 /* aggregative value selection */ 2151#define ISCSI_DB_DATA_AGG_VAL_SEL_SHIFT 6 2152 u8 agg_flags /* bit for every DQ counter flags in CM context that DQ can increment */; 2153 __le16 sq_prod; 2154}; 2155 2156#endif /* __ISCSI_COMMON__ */ 2157