1 /* 2 * ibmvfc.h -- driver for IBM Power Virtual Fibre Channel Adapter 3 * 4 * Written By: Brian King <brking@linux.vnet.ibm.com>, IBM Corporation 5 * 6 * Copyright (C) IBM Corporation, 2008 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 * 22 */ 23 24 #ifndef _IBMVFC_H 25 #define _IBMVFC_H 26 27 #include <linux/list.h> 28 #include <linux/types.h> 29 #include "viosrp.h" 30 31 #define IBMVFC_NAME "ibmvfc" 32 #define IBMVFC_DRIVER_VERSION "1.0.9" 33 #define IBMVFC_DRIVER_DATE "(August 5, 2010)" 34 35 #define IBMVFC_DEFAULT_TIMEOUT 60 36 #define IBMVFC_ADISC_CANCEL_TIMEOUT 45 37 #define IBMVFC_ADISC_TIMEOUT 15 38 #define IBMVFC_ADISC_PLUS_CANCEL_TIMEOUT \ 39 (IBMVFC_ADISC_TIMEOUT + IBMVFC_ADISC_CANCEL_TIMEOUT) 40 #define IBMVFC_INIT_TIMEOUT 120 41 #define IBMVFC_ABORT_TIMEOUT 8 42 #define IBMVFC_ABORT_WAIT_TIMEOUT 40 43 #define IBMVFC_MAX_REQUESTS_DEFAULT 100 44 45 #define IBMVFC_DEBUG 0 46 #define IBMVFC_MAX_TARGETS 1024 47 #define IBMVFC_MAX_LUN 0xffffffff 48 #define IBMVFC_MAX_SECTORS 0xffffu 49 #define IBMVFC_MAX_DISC_THREADS 4 50 #define IBMVFC_TGT_MEMPOOL_SZ 64 51 #define IBMVFC_MAX_CMDS_PER_LUN 64 52 #define IBMVFC_MAX_HOST_INIT_RETRIES 6 53 #define IBMVFC_MAX_TGT_INIT_RETRIES 3 54 #define IBMVFC_DEV_LOSS_TMO (5 * 60) 55 #define IBMVFC_DEFAULT_LOG_LEVEL 2 56 #define IBMVFC_MAX_CDB_LEN 16 57 58 /* 59 * Ensure we have resources for ERP and initialization: 60 * 1 for ERP 61 * 1 for initialization 62 * 1 for NPIV Logout 63 * 2 for BSG passthru 64 * 2 for each discovery thread 65 */ 66 #define IBMVFC_NUM_INTERNAL_REQ (1 + 1 + 1 + 2 + (disc_threads * 2)) 67 68 #define IBMVFC_MAD_SUCCESS 0x00 69 #define IBMVFC_MAD_NOT_SUPPORTED 0xF1 70 #define IBMVFC_MAD_FAILED 0xF7 71 #define IBMVFC_MAD_DRIVER_FAILED 0xEE 72 #define IBMVFC_MAD_CRQ_ERROR 0xEF 73 74 enum ibmvfc_crq_valid { 75 IBMVFC_CRQ_CMD_RSP = 0x80, 76 IBMVFC_CRQ_INIT_RSP = 0xC0, 77 IBMVFC_CRQ_XPORT_EVENT = 0xFF, 78 }; 79 80 enum ibmvfc_crq_format { 81 IBMVFC_CRQ_INIT = 0x01, 82 IBMVFC_CRQ_INIT_COMPLETE = 0x02, 83 IBMVFC_PARTITION_MIGRATED = 0x06, 84 }; 85 86 enum ibmvfc_cmd_status_flags { 87 IBMVFC_FABRIC_MAPPED = 0x0001, 88 IBMVFC_VIOS_FAILURE = 0x0002, 89 IBMVFC_FC_FAILURE = 0x0004, 90 IBMVFC_FC_SCSI_ERROR = 0x0008, 91 IBMVFC_HW_EVENT_LOGGED = 0x0010, 92 IBMVFC_VIOS_LOGGED = 0x0020, 93 }; 94 95 enum ibmvfc_fabric_mapped_errors { 96 IBMVFC_UNABLE_TO_ESTABLISH = 0x0001, 97 IBMVFC_XPORT_FAULT = 0x0002, 98 IBMVFC_CMD_TIMEOUT = 0x0003, 99 IBMVFC_ENETDOWN = 0x0004, 100 IBMVFC_HW_FAILURE = 0x0005, 101 IBMVFC_LINK_DOWN_ERR = 0x0006, 102 IBMVFC_LINK_DEAD_ERR = 0x0007, 103 IBMVFC_UNABLE_TO_REGISTER = 0x0008, 104 IBMVFC_XPORT_BUSY = 0x000A, 105 IBMVFC_XPORT_DEAD = 0x000B, 106 IBMVFC_CONFIG_ERROR = 0x000C, 107 IBMVFC_NAME_SERVER_FAIL = 0x000D, 108 IBMVFC_LINK_HALTED = 0x000E, 109 IBMVFC_XPORT_GENERAL = 0x8000, 110 }; 111 112 enum ibmvfc_vios_errors { 113 IBMVFC_CRQ_FAILURE = 0x0001, 114 IBMVFC_SW_FAILURE = 0x0002, 115 IBMVFC_INVALID_PARAMETER = 0x0003, 116 IBMVFC_MISSING_PARAMETER = 0x0004, 117 IBMVFC_HOST_IO_BUS = 0x0005, 118 IBMVFC_TRANS_CANCELLED = 0x0006, 119 IBMVFC_TRANS_CANCELLED_IMPLICIT = 0x0007, 120 IBMVFC_INSUFFICIENT_RESOURCE = 0x0008, 121 IBMVFC_PLOGI_REQUIRED = 0x0010, 122 IBMVFC_COMMAND_FAILED = 0x8000, 123 }; 124 125 enum ibmvfc_mad_types { 126 IBMVFC_NPIV_LOGIN = 0x0001, 127 IBMVFC_DISC_TARGETS = 0x0002, 128 IBMVFC_PORT_LOGIN = 0x0004, 129 IBMVFC_PROCESS_LOGIN = 0x0008, 130 IBMVFC_QUERY_TARGET = 0x0010, 131 IBMVFC_IMPLICIT_LOGOUT = 0x0040, 132 IBMVFC_PASSTHRU = 0x0200, 133 IBMVFC_TMF_MAD = 0x0100, 134 IBMVFC_NPIV_LOGOUT = 0x0800, 135 }; 136 137 struct ibmvfc_mad_common { 138 u32 version; 139 u32 reserved; 140 u32 opcode; 141 u16 status; 142 u16 length; 143 u64 tag; 144 }__attribute__((packed, aligned (8))); 145 146 struct ibmvfc_npiv_login_mad { 147 struct ibmvfc_mad_common common; 148 struct srp_direct_buf buffer; 149 }__attribute__((packed, aligned (8))); 150 151 struct ibmvfc_npiv_logout_mad { 152 struct ibmvfc_mad_common common; 153 }__attribute__((packed, aligned (8))); 154 155 #define IBMVFC_MAX_NAME 256 156 157 struct ibmvfc_npiv_login { 158 u32 ostype; 159 #define IBMVFC_OS_LINUX 0x02 160 u32 pad; 161 u64 max_dma_len; 162 u32 max_payload; 163 u32 max_response; 164 u32 partition_num; 165 u32 vfc_frame_version; 166 u16 fcp_version; 167 u16 flags; 168 #define IBMVFC_CLIENT_MIGRATED 0x01 169 #define IBMVFC_FLUSH_ON_HALT 0x02 170 u32 max_cmds; 171 u64 capabilities; 172 #define IBMVFC_CAN_MIGRATE 0x01 173 u64 node_name; 174 struct srp_direct_buf async; 175 u8 partition_name[IBMVFC_MAX_NAME]; 176 u8 device_name[IBMVFC_MAX_NAME]; 177 u8 drc_name[IBMVFC_MAX_NAME]; 178 u64 reserved2[2]; 179 }__attribute__((packed, aligned (8))); 180 181 struct ibmvfc_common_svc_parms { 182 u16 fcph_version; 183 u16 b2b_credit; 184 u16 features; 185 u16 bb_rcv_sz; /* upper nibble is BB_SC_N */ 186 u32 ratov; 187 u32 edtov; 188 }__attribute__((packed, aligned (4))); 189 190 struct ibmvfc_service_parms { 191 struct ibmvfc_common_svc_parms common; 192 u8 port_name[8]; 193 u8 node_name[8]; 194 u32 class1_parms[4]; 195 u32 class2_parms[4]; 196 u32 class3_parms[4]; 197 u32 obsolete[4]; 198 u32 vendor_version[4]; 199 u32 services_avail[2]; 200 u32 ext_len; 201 u32 reserved[30]; 202 u32 clk_sync_qos[2]; 203 }__attribute__((packed, aligned (4))); 204 205 struct ibmvfc_npiv_login_resp { 206 u32 version; 207 u16 status; 208 u16 error; 209 u32 flags; 210 #define IBMVFC_NATIVE_FC 0x01 211 #define IBMVFC_CAN_FLUSH_ON_HALT 0x08 212 u32 reserved; 213 u64 capabilities; 214 #define IBMVFC_CAN_FLUSH_ON_HALT 0x08 215 u32 max_cmds; 216 u32 scsi_id_sz; 217 u64 max_dma_len; 218 u64 scsi_id; 219 u64 port_name; 220 u64 node_name; 221 u64 link_speed; 222 u8 partition_name[IBMVFC_MAX_NAME]; 223 u8 device_name[IBMVFC_MAX_NAME]; 224 u8 port_loc_code[IBMVFC_MAX_NAME]; 225 u8 drc_name[IBMVFC_MAX_NAME]; 226 struct ibmvfc_service_parms service_parms; 227 u64 reserved2; 228 }__attribute__((packed, aligned (8))); 229 230 union ibmvfc_npiv_login_data { 231 struct ibmvfc_npiv_login login; 232 struct ibmvfc_npiv_login_resp resp; 233 }__attribute__((packed, aligned (8))); 234 235 struct ibmvfc_discover_targets_buf { 236 u32 scsi_id[1]; 237 #define IBMVFC_DISC_TGT_SCSI_ID_MASK 0x00ffffff 238 }; 239 240 struct ibmvfc_discover_targets { 241 struct ibmvfc_mad_common common; 242 struct srp_direct_buf buffer; 243 u32 flags; 244 u16 status; 245 u16 error; 246 u32 bufflen; 247 u32 num_avail; 248 u32 num_written; 249 u64 reserved[2]; 250 }__attribute__((packed, aligned (8))); 251 252 enum ibmvfc_fc_reason { 253 IBMVFC_INVALID_ELS_CMD_CODE = 0x01, 254 IBMVFC_INVALID_VERSION = 0x02, 255 IBMVFC_LOGICAL_ERROR = 0x03, 256 IBMVFC_INVALID_CT_IU_SIZE = 0x04, 257 IBMVFC_LOGICAL_BUSY = 0x05, 258 IBMVFC_PROTOCOL_ERROR = 0x07, 259 IBMVFC_UNABLE_TO_PERFORM_REQ = 0x09, 260 IBMVFC_CMD_NOT_SUPPORTED = 0x0B, 261 IBMVFC_SERVER_NOT_AVAIL = 0x0D, 262 IBMVFC_CMD_IN_PROGRESS = 0x0E, 263 IBMVFC_VENDOR_SPECIFIC = 0xFF, 264 }; 265 266 enum ibmvfc_fc_type { 267 IBMVFC_FABRIC_REJECT = 0x01, 268 IBMVFC_PORT_REJECT = 0x02, 269 IBMVFC_LS_REJECT = 0x03, 270 IBMVFC_FABRIC_BUSY = 0x04, 271 IBMVFC_PORT_BUSY = 0x05, 272 IBMVFC_BASIC_REJECT = 0x06, 273 }; 274 275 enum ibmvfc_gs_explain { 276 IBMVFC_PORT_NAME_NOT_REG = 0x02, 277 }; 278 279 struct ibmvfc_port_login { 280 struct ibmvfc_mad_common common; 281 u64 scsi_id; 282 u16 reserved; 283 u16 fc_service_class; 284 u32 blksz; 285 u32 hdr_per_blk; 286 u16 status; 287 u16 error; /* also fc_reason */ 288 u16 fc_explain; 289 u16 fc_type; 290 u32 reserved2; 291 struct ibmvfc_service_parms service_parms; 292 struct ibmvfc_service_parms service_parms_change; 293 u64 reserved3[2]; 294 }__attribute__((packed, aligned (8))); 295 296 struct ibmvfc_prli_svc_parms { 297 u8 type; 298 #define IBMVFC_SCSI_FCP_TYPE 0x08 299 u8 type_ext; 300 u16 flags; 301 #define IBMVFC_PRLI_ORIG_PA_VALID 0x8000 302 #define IBMVFC_PRLI_RESP_PA_VALID 0x4000 303 #define IBMVFC_PRLI_EST_IMG_PAIR 0x2000 304 u32 orig_pa; 305 u32 resp_pa; 306 u32 service_parms; 307 #define IBMVFC_PRLI_TASK_RETRY 0x00000200 308 #define IBMVFC_PRLI_RETRY 0x00000100 309 #define IBMVFC_PRLI_DATA_OVERLAY 0x00000040 310 #define IBMVFC_PRLI_INITIATOR_FUNC 0x00000020 311 #define IBMVFC_PRLI_TARGET_FUNC 0x00000010 312 #define IBMVFC_PRLI_READ_FCP_XFER_RDY_DISABLED 0x00000002 313 #define IBMVFC_PRLI_WR_FCP_XFER_RDY_DISABLED 0x00000001 314 }__attribute__((packed, aligned (4))); 315 316 struct ibmvfc_process_login { 317 struct ibmvfc_mad_common common; 318 u64 scsi_id; 319 struct ibmvfc_prli_svc_parms parms; 320 u8 reserved[48]; 321 u16 status; 322 u16 error; /* also fc_reason */ 323 u32 reserved2; 324 u64 reserved3[2]; 325 }__attribute__((packed, aligned (8))); 326 327 struct ibmvfc_query_tgt { 328 struct ibmvfc_mad_common common; 329 u64 wwpn; 330 u64 scsi_id; 331 u16 status; 332 u16 error; 333 u16 fc_explain; 334 u16 fc_type; 335 u64 reserved[2]; 336 }__attribute__((packed, aligned (8))); 337 338 struct ibmvfc_implicit_logout { 339 struct ibmvfc_mad_common common; 340 u64 old_scsi_id; 341 u64 reserved[2]; 342 }__attribute__((packed, aligned (8))); 343 344 struct ibmvfc_tmf { 345 struct ibmvfc_mad_common common; 346 u64 scsi_id; 347 struct scsi_lun lun; 348 u32 flags; 349 #define IBMVFC_TMF_ABORT_TASK 0x02 350 #define IBMVFC_TMF_ABORT_TASK_SET 0x04 351 #define IBMVFC_TMF_LUN_RESET 0x10 352 #define IBMVFC_TMF_TGT_RESET 0x20 353 #define IBMVFC_TMF_LUA_VALID 0x40 354 u32 cancel_key; 355 u32 my_cancel_key; 356 u32 pad; 357 u64 reserved[2]; 358 }__attribute__((packed, aligned (8))); 359 360 enum ibmvfc_fcp_rsp_info_codes { 361 RSP_NO_FAILURE = 0x00, 362 RSP_TMF_REJECTED = 0x04, 363 RSP_TMF_FAILED = 0x05, 364 RSP_TMF_INVALID_LUN = 0x09, 365 }; 366 367 struct ibmvfc_fcp_rsp_info { 368 u16 reserved; 369 u8 rsp_code; 370 u8 reserved2[4]; 371 }__attribute__((packed, aligned (2))); 372 373 enum ibmvfc_fcp_rsp_flags { 374 FCP_BIDI_RSP = 0x80, 375 FCP_BIDI_READ_RESID_UNDER = 0x40, 376 FCP_BIDI_READ_RESID_OVER = 0x20, 377 FCP_CONF_REQ = 0x10, 378 FCP_RESID_UNDER = 0x08, 379 FCP_RESID_OVER = 0x04, 380 FCP_SNS_LEN_VALID = 0x02, 381 FCP_RSP_LEN_VALID = 0x01, 382 }; 383 384 union ibmvfc_fcp_rsp_data { 385 struct ibmvfc_fcp_rsp_info info; 386 u8 sense[SCSI_SENSE_BUFFERSIZE + sizeof(struct ibmvfc_fcp_rsp_info)]; 387 }__attribute__((packed, aligned (8))); 388 389 struct ibmvfc_fcp_rsp { 390 u64 reserved; 391 u16 retry_delay_timer; 392 u8 flags; 393 u8 scsi_status; 394 u32 fcp_resid; 395 u32 fcp_sense_len; 396 u32 fcp_rsp_len; 397 union ibmvfc_fcp_rsp_data data; 398 }__attribute__((packed, aligned (8))); 399 400 enum ibmvfc_cmd_flags { 401 IBMVFC_SCATTERLIST = 0x0001, 402 IBMVFC_NO_MEM_DESC = 0x0002, 403 IBMVFC_READ = 0x0004, 404 IBMVFC_WRITE = 0x0008, 405 IBMVFC_TMF = 0x0080, 406 IBMVFC_CLASS_3_ERR = 0x0100, 407 }; 408 409 enum ibmvfc_fc_task_attr { 410 IBMVFC_SIMPLE_TASK = 0x00, 411 IBMVFC_HEAD_OF_QUEUE = 0x01, 412 IBMVFC_ORDERED_TASK = 0x02, 413 IBMVFC_ACA_TASK = 0x04, 414 }; 415 416 enum ibmvfc_fc_tmf_flags { 417 IBMVFC_ABORT_TASK_SET = 0x02, 418 IBMVFC_LUN_RESET = 0x10, 419 IBMVFC_TARGET_RESET = 0x20, 420 }; 421 422 struct ibmvfc_fcp_cmd_iu { 423 struct scsi_lun lun; 424 u8 crn; 425 u8 pri_task_attr; 426 u8 tmf_flags; 427 u8 add_cdb_len; 428 #define IBMVFC_RDDATA 0x02 429 #define IBMVFC_WRDATA 0x01 430 u8 cdb[IBMVFC_MAX_CDB_LEN]; 431 u32 xfer_len; 432 }__attribute__((packed, aligned (4))); 433 434 struct ibmvfc_cmd { 435 u64 task_tag; 436 u32 frame_type; 437 u32 payload_len; 438 u32 resp_len; 439 u32 adapter_resid; 440 u16 status; 441 u16 error; 442 u16 flags; 443 u16 response_flags; 444 #define IBMVFC_ADAPTER_RESID_VALID 0x01 445 u32 cancel_key; 446 u32 exchange_id; 447 struct srp_direct_buf ext_func; 448 struct srp_direct_buf ioba; 449 struct srp_direct_buf resp; 450 u64 correlation; 451 u64 tgt_scsi_id; 452 u64 tag; 453 u64 reserved3[2]; 454 struct ibmvfc_fcp_cmd_iu iu; 455 struct ibmvfc_fcp_rsp rsp; 456 }__attribute__((packed, aligned (8))); 457 458 struct ibmvfc_passthru_fc_iu { 459 u32 payload[7]; 460 #define IBMVFC_ADISC 0x52000000 461 u32 response[7]; 462 }; 463 464 struct ibmvfc_passthru_iu { 465 u64 task_tag; 466 u32 cmd_len; 467 u32 rsp_len; 468 u16 status; 469 u16 error; 470 u32 flags; 471 #define IBMVFC_FC_ELS 0x01 472 #define IBMVFC_FC_CT_IU 0x02 473 u32 cancel_key; 474 #define IBMVFC_PASSTHRU_CANCEL_KEY 0x80000000 475 #define IBMVFC_INTERNAL_CANCEL_KEY 0x80000001 476 u32 reserved; 477 struct srp_direct_buf cmd; 478 struct srp_direct_buf rsp; 479 u64 correlation; 480 u64 scsi_id; 481 u64 tag; 482 u64 reserved2[2]; 483 }__attribute__((packed, aligned (8))); 484 485 struct ibmvfc_passthru_mad { 486 struct ibmvfc_mad_common common; 487 struct srp_direct_buf cmd_ioba; 488 struct ibmvfc_passthru_iu iu; 489 struct ibmvfc_passthru_fc_iu fc_iu; 490 }__attribute__((packed, aligned (8))); 491 492 struct ibmvfc_trace_start_entry { 493 u32 xfer_len; 494 }__attribute__((packed)); 495 496 struct ibmvfc_trace_end_entry { 497 u16 status; 498 u16 error; 499 u8 fcp_rsp_flags; 500 u8 rsp_code; 501 u8 scsi_status; 502 u8 reserved; 503 }__attribute__((packed)); 504 505 struct ibmvfc_trace_entry { 506 struct ibmvfc_event *evt; 507 u32 time; 508 u32 scsi_id; 509 u32 lun; 510 u8 fmt; 511 u8 op_code; 512 u8 tmf_flags; 513 u8 type; 514 #define IBMVFC_TRC_START 0x00 515 #define IBMVFC_TRC_END 0xff 516 union { 517 struct ibmvfc_trace_start_entry start; 518 struct ibmvfc_trace_end_entry end; 519 } u; 520 }__attribute__((packed, aligned (8))); 521 522 enum ibmvfc_crq_formats { 523 IBMVFC_CMD_FORMAT = 0x01, 524 IBMVFC_ASYNC_EVENT = 0x02, 525 IBMVFC_MAD_FORMAT = 0x04, 526 }; 527 528 enum ibmvfc_async_event { 529 IBMVFC_AE_ELS_PLOGI = 0x0001, 530 IBMVFC_AE_ELS_LOGO = 0x0002, 531 IBMVFC_AE_ELS_PRLO = 0x0004, 532 IBMVFC_AE_SCN_NPORT = 0x0008, 533 IBMVFC_AE_SCN_GROUP = 0x0010, 534 IBMVFC_AE_SCN_DOMAIN = 0x0020, 535 IBMVFC_AE_SCN_FABRIC = 0x0040, 536 IBMVFC_AE_LINK_UP = 0x0080, 537 IBMVFC_AE_LINK_DOWN = 0x0100, 538 IBMVFC_AE_LINK_DEAD = 0x0200, 539 IBMVFC_AE_HALT = 0x0400, 540 IBMVFC_AE_RESUME = 0x0800, 541 IBMVFC_AE_ADAPTER_FAILED = 0x1000, 542 }; 543 544 struct ibmvfc_async_desc { 545 const char *desc; 546 enum ibmvfc_async_event ae; 547 int log_level; 548 }; 549 550 struct ibmvfc_crq { 551 volatile u8 valid; 552 volatile u8 format; 553 u8 reserved[6]; 554 volatile u64 ioba; 555 }__attribute__((packed, aligned (8))); 556 557 struct ibmvfc_crq_queue { 558 struct ibmvfc_crq *msgs; 559 int size, cur; 560 dma_addr_t msg_token; 561 }; 562 563 enum ibmvfc_ae_link_state { 564 IBMVFC_AE_LS_LINK_UP = 0x01, 565 IBMVFC_AE_LS_LINK_BOUNCED = 0x02, 566 IBMVFC_AE_LS_LINK_DOWN = 0x04, 567 IBMVFC_AE_LS_LINK_DEAD = 0x08, 568 }; 569 570 struct ibmvfc_async_crq { 571 volatile u8 valid; 572 u8 link_state; 573 u8 pad[2]; 574 u32 pad2; 575 volatile u64 event; 576 volatile u64 scsi_id; 577 volatile u64 wwpn; 578 volatile u64 node_name; 579 u64 reserved; 580 }__attribute__((packed, aligned (8))); 581 582 struct ibmvfc_async_crq_queue { 583 struct ibmvfc_async_crq *msgs; 584 int size, cur; 585 dma_addr_t msg_token; 586 }; 587 588 union ibmvfc_iu { 589 struct ibmvfc_mad_common mad_common; 590 struct ibmvfc_npiv_login_mad npiv_login; 591 struct ibmvfc_npiv_logout_mad npiv_logout; 592 struct ibmvfc_discover_targets discover_targets; 593 struct ibmvfc_port_login plogi; 594 struct ibmvfc_process_login prli; 595 struct ibmvfc_query_tgt query_tgt; 596 struct ibmvfc_implicit_logout implicit_logout; 597 struct ibmvfc_tmf tmf; 598 struct ibmvfc_cmd cmd; 599 struct ibmvfc_passthru_mad passthru; 600 }__attribute__((packed, aligned (8))); 601 602 enum ibmvfc_target_action { 603 IBMVFC_TGT_ACTION_NONE = 0, 604 IBMVFC_TGT_ACTION_INIT, 605 IBMVFC_TGT_ACTION_INIT_WAIT, 606 IBMVFC_TGT_ACTION_DEL_RPORT, 607 IBMVFC_TGT_ACTION_DELETED_RPORT, 608 }; 609 610 struct ibmvfc_target { 611 struct list_head queue; 612 struct ibmvfc_host *vhost; 613 u64 scsi_id; 614 u64 new_scsi_id; 615 struct fc_rport *rport; 616 int target_id; 617 enum ibmvfc_target_action action; 618 int need_login; 619 int add_rport; 620 int init_retries; 621 int logo_rcvd; 622 u32 cancel_key; 623 struct ibmvfc_service_parms service_parms; 624 struct ibmvfc_service_parms service_parms_change; 625 struct fc_rport_identifiers ids; 626 void (*job_step) (struct ibmvfc_target *); 627 struct timer_list timer; 628 struct kref kref; 629 }; 630 631 /* a unit of work for the hosting partition */ 632 struct ibmvfc_event { 633 struct list_head queue; 634 struct ibmvfc_host *vhost; 635 struct ibmvfc_target *tgt; 636 struct scsi_cmnd *cmnd; 637 atomic_t free; 638 union ibmvfc_iu *xfer_iu; 639 void (*done) (struct ibmvfc_event *); 640 struct ibmvfc_crq crq; 641 union ibmvfc_iu iu; 642 union ibmvfc_iu *sync_iu; 643 struct srp_direct_buf *ext_list; 644 dma_addr_t ext_list_token; 645 struct completion comp; 646 struct completion *eh_comp; 647 struct timer_list timer; 648 }; 649 650 /* a pool of event structs for use */ 651 struct ibmvfc_event_pool { 652 struct ibmvfc_event *events; 653 u32 size; 654 union ibmvfc_iu *iu_storage; 655 dma_addr_t iu_token; 656 }; 657 658 enum ibmvfc_host_action { 659 IBMVFC_HOST_ACTION_NONE = 0, 660 IBMVFC_HOST_ACTION_RESET, 661 IBMVFC_HOST_ACTION_REENABLE, 662 IBMVFC_HOST_ACTION_LOGO, 663 IBMVFC_HOST_ACTION_LOGO_WAIT, 664 IBMVFC_HOST_ACTION_INIT, 665 IBMVFC_HOST_ACTION_INIT_WAIT, 666 IBMVFC_HOST_ACTION_QUERY, 667 IBMVFC_HOST_ACTION_QUERY_TGTS, 668 IBMVFC_HOST_ACTION_TGT_DEL, 669 IBMVFC_HOST_ACTION_ALLOC_TGTS, 670 IBMVFC_HOST_ACTION_TGT_INIT, 671 IBMVFC_HOST_ACTION_TGT_DEL_FAILED, 672 }; 673 674 enum ibmvfc_host_state { 675 IBMVFC_NO_CRQ = 0, 676 IBMVFC_INITIALIZING, 677 IBMVFC_ACTIVE, 678 IBMVFC_HALTED, 679 IBMVFC_LINK_DOWN, 680 IBMVFC_LINK_DEAD, 681 IBMVFC_HOST_OFFLINE, 682 }; 683 684 struct ibmvfc_host { 685 char name[8]; 686 struct list_head queue; 687 struct Scsi_Host *host; 688 enum ibmvfc_host_state state; 689 enum ibmvfc_host_action action; 690 #define IBMVFC_NUM_TRACE_INDEX_BITS 8 691 #define IBMVFC_NUM_TRACE_ENTRIES (1 << IBMVFC_NUM_TRACE_INDEX_BITS) 692 #define IBMVFC_TRACE_SIZE (sizeof(struct ibmvfc_trace_entry) * IBMVFC_NUM_TRACE_ENTRIES) 693 struct ibmvfc_trace_entry *trace; 694 u32 trace_index:IBMVFC_NUM_TRACE_INDEX_BITS; 695 int num_targets; 696 struct list_head targets; 697 struct list_head sent; 698 struct list_head free; 699 struct device *dev; 700 struct ibmvfc_event_pool pool; 701 struct dma_pool *sg_pool; 702 mempool_t *tgt_pool; 703 struct ibmvfc_crq_queue crq; 704 struct ibmvfc_async_crq_queue async_crq; 705 struct ibmvfc_npiv_login login_info; 706 union ibmvfc_npiv_login_data *login_buf; 707 dma_addr_t login_buf_dma; 708 int disc_buf_sz; 709 int log_level; 710 struct ibmvfc_discover_targets_buf *disc_buf; 711 struct mutex passthru_mutex; 712 int task_set; 713 int init_retries; 714 int discovery_threads; 715 int abort_threads; 716 int client_migrated; 717 int reinit; 718 int delay_init; 719 int scan_complete; 720 int logged_in; 721 int aborting_passthru; 722 int events_to_log; 723 #define IBMVFC_AE_LINKUP 0x0001 724 #define IBMVFC_AE_LINKDOWN 0x0002 725 #define IBMVFC_AE_RSCN 0x0004 726 dma_addr_t disc_buf_dma; 727 unsigned int partition_number; 728 char partition_name[97]; 729 void (*job_step) (struct ibmvfc_host *); 730 struct task_struct *work_thread; 731 struct tasklet_struct tasklet; 732 struct work_struct rport_add_work_q; 733 wait_queue_head_t init_wait_q; 734 wait_queue_head_t work_wait_q; 735 }; 736 737 #define DBG_CMD(CMD) do { if (ibmvfc_debug) CMD; } while (0) 738 739 #define tgt_dbg(t, fmt, ...) \ 740 DBG_CMD(dev_info((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__)) 741 742 #define tgt_info(t, fmt, ...) \ 743 dev_info((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__) 744 745 #define tgt_err(t, fmt, ...) \ 746 dev_err((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__) 747 748 #define tgt_log(t, level, fmt, ...) \ 749 do { \ 750 if ((t)->vhost->log_level >= level) \ 751 tgt_err(t, fmt, ##__VA_ARGS__); \ 752 } while (0) 753 754 #define ibmvfc_dbg(vhost, ...) \ 755 DBG_CMD(dev_info((vhost)->dev, ##__VA_ARGS__)) 756 757 #define ibmvfc_log(vhost, level, ...) \ 758 do { \ 759 if ((vhost)->log_level >= level) \ 760 dev_err((vhost)->dev, ##__VA_ARGS__); \ 761 } while (0) 762 763 #define ENTER DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Entering %s\n", __func__)) 764 #define LEAVE DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Leaving %s\n", __func__)) 765 766 #ifdef CONFIG_SCSI_IBMVFC_TRACE 767 #define ibmvfc_create_trace_file(kobj, attr) sysfs_create_bin_file(kobj, attr) 768 #define ibmvfc_remove_trace_file(kobj, attr) sysfs_remove_bin_file(kobj, attr) 769 #else 770 #define ibmvfc_create_trace_file(kobj, attr) 0 771 #define ibmvfc_remove_trace_file(kobj, attr) do { } while (0) 772 #endif 773 774 #endif 775