1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2003 Silicon Graphics International Corp. 5 * Copyright (c) 2011 Spectra Logic Corporation 6 * Copyright (c) 2014-2017 Alexander Motin <mav@FreeBSD.org> 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions, and the following disclaimer, 14 * without modification. 15 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 16 * substantially similar to the "NO WARRANTY" disclaimer below 17 * ("Disclaimer") and any redistribution must be conditioned upon 18 * including a substantially similar Disclaimer requirement for further 19 * binary redistribution. 20 * 21 * NO WARRANTY 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 26 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 31 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGES. 33 * 34 * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl_ioctl.h#4 $ 35 * $FreeBSD$ 36 */ 37/* 38 * CAM Target Layer ioctl interface. 39 * 40 * Author: Ken Merry <ken@FreeBSD.org> 41 */ 42 43#ifndef _CTL_IOCTL_H_ 44#define _CTL_IOCTL_H_ 45 46#ifdef ICL_KERNEL_PROXY 47#include <sys/socket.h> 48#endif 49 50#include <sys/ioccom.h> 51#include <sys/nv.h> 52 53#define CTL_DEFAULT_DEV "/dev/cam/ctl" 54/* 55 * Maximum number of targets we support. 56 */ 57#define CTL_MAX_TARGETS 1 58 59/* 60 * Maximum target ID we support. 61 */ 62#define CTL_MAX_TARGID 15 63 64/* 65 * Maximum number of initiators per port. 66 */ 67#define CTL_MAX_INIT_PER_PORT 2048 68 69/* Hopefully this won't conflict with new misc devices that pop up */ 70#define CTL_MINOR 225 71 72typedef enum { 73 CTL_DELAY_TYPE_NONE, 74 CTL_DELAY_TYPE_CONT, 75 CTL_DELAY_TYPE_ONESHOT 76} ctl_delay_type; 77 78typedef enum { 79 CTL_DELAY_LOC_NONE, 80 CTL_DELAY_LOC_DATAMOVE, 81 CTL_DELAY_LOC_DONE, 82} ctl_delay_location; 83 84typedef enum { 85 CTL_DELAY_STATUS_NONE, 86 CTL_DELAY_STATUS_OK, 87 CTL_DELAY_STATUS_INVALID_LUN, 88 CTL_DELAY_STATUS_INVALID_TYPE, 89 CTL_DELAY_STATUS_INVALID_LOC, 90 CTL_DELAY_STATUS_NOT_IMPLEMENTED 91} ctl_delay_status; 92 93struct ctl_io_delay_info { 94 uint32_t lun_id; 95 ctl_delay_type delay_type; 96 ctl_delay_location delay_loc; 97 uint32_t delay_secs; 98 ctl_delay_status status; 99}; 100 101typedef enum { 102 CTL_STATS_NO_IO, 103 CTL_STATS_READ, 104 CTL_STATS_WRITE 105} ctl_stat_types; 106#define CTL_STATS_NUM_TYPES 3 107 108typedef enum { 109 CTL_SS_OK, 110 CTL_SS_NEED_MORE_SPACE, 111 CTL_SS_ERROR 112} ctl_stats_status; 113 114typedef enum { 115 CTL_STATS_FLAG_NONE = 0x00, 116 CTL_STATS_FLAG_TIME_VALID = 0x01 117} ctl_stats_flags; 118 119struct ctl_io_stats { 120 uint32_t item; 121 uint64_t bytes[CTL_STATS_NUM_TYPES]; 122 uint64_t operations[CTL_STATS_NUM_TYPES]; 123 uint64_t dmas[CTL_STATS_NUM_TYPES]; 124 struct bintime time[CTL_STATS_NUM_TYPES]; 125 struct bintime dma_time[CTL_STATS_NUM_TYPES]; 126}; 127 128struct ctl_get_io_stats { 129 struct ctl_io_stats *stats; /* passed to/from kernel */ 130 size_t alloc_len; /* passed to kernel */ 131 size_t fill_len; /* passed to userland */ 132 int first_item; /* passed to kernel */ 133 int num_items; /* passed to userland */ 134 ctl_stats_status status; /* passed to userland */ 135 ctl_stats_flags flags; /* passed to userland */ 136 struct timespec timestamp; /* passed to userland */ 137}; 138 139/* 140 * The types of errors that can be injected: 141 * 142 * NONE: No error specified. 143 * ABORTED: SSD_KEY_ABORTED_COMMAND, 0x45, 0x00 144 * MEDIUM_ERR: Medium error, different asc/ascq depending on read/write. 145 * UA: Unit attention. 146 * CUSTOM: User specifies the sense data. 147 * TYPE: Mask to use with error types. 148 * 149 * Flags that affect injection behavior: 150 * CONTINUOUS: This error will stay around until explicitly cleared. 151 * DESCRIPTOR: Use descriptor sense instead of fixed sense. 152 */ 153typedef enum { 154 CTL_LUN_INJ_NONE = 0x000, 155 CTL_LUN_INJ_ABORTED = 0x001, 156 CTL_LUN_INJ_MEDIUM_ERR = 0x002, 157 CTL_LUN_INJ_UA = 0x003, 158 CTL_LUN_INJ_CUSTOM = 0x004, 159 CTL_LUN_INJ_TYPE = 0x0ff, 160 CTL_LUN_INJ_CONTINUOUS = 0x100, 161 CTL_LUN_INJ_DESCRIPTOR = 0x200 162} ctl_lun_error; 163 164/* 165 * Flags to specify what type of command the given error pattern will 166 * execute on. The first group of types can be ORed together. 167 * 168 * READ: Any read command. 169 * WRITE: Any write command. 170 * READWRITE: Any read or write command. 171 * READCAP: Any read capacity command. 172 * TUR: Test Unit Ready. 173 * ANY: Any command. 174 * MASK: Mask for basic command patterns. 175 * 176 * Special types: 177 * 178 * CMD: The CDB to act on is specified in struct ctl_error_desc_cmd. 179 * RANGE: For read/write commands, act when the LBA is in the 180 * specified range. 181 */ 182typedef enum { 183 CTL_LUN_PAT_NONE = 0x000, 184 CTL_LUN_PAT_READ = 0x001, 185 CTL_LUN_PAT_WRITE = 0x002, 186 CTL_LUN_PAT_READWRITE = CTL_LUN_PAT_READ | CTL_LUN_PAT_WRITE, 187 CTL_LUN_PAT_READCAP = 0x004, 188 CTL_LUN_PAT_TUR = 0x008, 189 CTL_LUN_PAT_ANY = 0x0ff, 190 CTL_LUN_PAT_MASK = 0x0ff, 191 CTL_LUN_PAT_CMD = 0x100, 192 CTL_LUN_PAT_RANGE = 0x200 193} ctl_lun_error_pattern; 194 195/* 196 * This structure allows the user to specify a particular CDB pattern to 197 * look for. 198 * 199 * cdb_pattern: Fill in the relevant bytes to look for in the CDB. 200 * cdb_valid_bytes: Bitmask specifying valid bytes in the cdb_pattern. 201 * flags: Specify any command flags (see ctl_io_flags) that 202 * should be set. 203 */ 204struct ctl_error_desc_cmd { 205 uint8_t cdb_pattern[CTL_MAX_CDBLEN]; 206 uint32_t cdb_valid_bytes; 207 uint32_t flags; 208}; 209 210/* 211 * Error injection descriptor. 212 * 213 * lun_id LUN to act on. 214 * lun_error: The type of error to inject. See above for descriptions. 215 * error_pattern: What kind of command to act on. See above. 216 * cmd_desc: For CTL_LUN_PAT_CMD only. 217 * lba_range: For CTL_LUN_PAT_RANGE only. 218 * custom_sense: Specify sense. For CTL_LUN_INJ_CUSTOM only. 219 * serial: Serial number returned by the kernel. Use for deletion. 220 * links: Kernel use only. 221 */ 222struct ctl_error_desc { 223 uint32_t lun_id; /* To kernel */ 224 ctl_lun_error lun_error; /* To kernel */ 225 ctl_lun_error_pattern error_pattern; /* To kernel */ 226 struct ctl_error_desc_cmd cmd_desc; /* To kernel */ 227 struct ctl_lba_len lba_range; /* To kernel */ 228 struct scsi_sense_data custom_sense; /* To kernel */ 229 uint64_t serial; /* From kernel */ 230 STAILQ_ENTRY(ctl_error_desc) links; /* Kernel use only */ 231}; 232 233typedef enum { 234 CTL_OOA_FLAG_NONE = 0x00, 235 CTL_OOA_FLAG_ALL_LUNS = 0x01 236} ctl_ooa_flags; 237 238typedef enum { 239 CTL_OOA_OK, 240 CTL_OOA_NEED_MORE_SPACE, 241 CTL_OOA_ERROR 242} ctl_get_ooa_status; 243 244typedef enum { 245 CTL_OOACMD_FLAG_NONE = 0x00, 246 CTL_OOACMD_FLAG_DMA = 0x01, 247 CTL_OOACMD_FLAG_BLOCKED = 0x02, 248 CTL_OOACMD_FLAG_ABORT = 0x04, 249 CTL_OOACMD_FLAG_RTR = 0x08, 250 CTL_OOACMD_FLAG_DMA_QUEUED = 0x10, 251 CTL_OOACMD_FLAG_STATUS_QUEUED = 0x20, 252 CTL_OOACMD_FLAG_STATUS_SENT = 0x40 253} ctl_ooa_cmd_flags; 254 255struct ctl_ooa_entry { 256 ctl_ooa_cmd_flags cmd_flags; 257 uint8_t cdb[CTL_MAX_CDBLEN]; 258 uint8_t cdb_len; 259 uint32_t tag_num; 260 uint32_t lun_num; 261 struct bintime start_bt; 262}; 263 264struct ctl_ooa { 265 ctl_ooa_flags flags; /* passed to kernel */ 266 uint64_t lun_num; /* passed to kernel */ 267 uint32_t alloc_len; /* passed to kernel */ 268 uint32_t alloc_num; /* passed to kernel */ 269 struct ctl_ooa_entry *entries; /* filled in kernel */ 270 uint32_t fill_len; /* passed to userland */ 271 uint32_t fill_num; /* passed to userland */ 272 uint32_t dropped_num; /* passed to userland */ 273 struct bintime cur_bt; /* passed to userland */ 274 ctl_get_ooa_status status; /* passed to userland */ 275}; 276 277typedef enum { 278 CTL_LUN_NOSTATUS, 279 CTL_LUN_OK, 280 CTL_LUN_ERROR, 281 CTL_LUN_WARNING 282} ctl_lun_status; 283 284#define CTL_ERROR_STR_LEN 160 285 286typedef enum { 287 CTL_LUNREQ_CREATE, 288 CTL_LUNREQ_RM, 289 CTL_LUNREQ_MODIFY, 290} ctl_lunreq_type; 291 292/* 293 * The ID_REQ flag is used to say that the caller has requested a 294 * particular LUN ID in the req_lun_id field. If we cannot allocate that 295 * LUN ID, the ctl_add_lun() call will fail. 296 * 297 * The STOPPED flag tells us that the LUN should default to the powered 298 * off state. It will return 0x04,0x02 until it is powered up. ("Logical 299 * unit not ready, initializing command required.") 300 * 301 * The NO_MEDIA flag tells us that the LUN has no media inserted. 302 * 303 * The PRIMARY flag tells us that this LUN is registered as a Primary LUN 304 * which is accessible via the Master shelf controller in an HA. This flag 305 * being set indicates a Primary LUN. This flag being reset represents a 306 * Secondary LUN controlled by the Secondary controller in an HA 307 * configuration. Flag is applicable at this time to T_DIRECT types. 308 * 309 * The SERIAL_NUM flag tells us that the serial_num field is filled in and 310 * valid for use in SCSI INQUIRY VPD page 0x80. 311 * 312 * The DEVID flag tells us that the device_id field is filled in and 313 * valid for use in SCSI INQUIRY VPD page 0x83. 314 * 315 * The DEV_TYPE flag tells us that the device_type field is filled in. 316 * 317 * The EJECTED flag tells us that the removable LUN has tray open. 318 * 319 * The UNMAP flag tells us that this LUN supports UNMAP. 320 * 321 * The OFFLINE flag tells us that this LUN can not access backing store. 322 */ 323typedef enum { 324 CTL_LUN_FLAG_ID_REQ = 0x01, 325 CTL_LUN_FLAG_STOPPED = 0x02, 326 CTL_LUN_FLAG_NO_MEDIA = 0x04, 327 CTL_LUN_FLAG_PRIMARY = 0x08, 328 CTL_LUN_FLAG_SERIAL_NUM = 0x10, 329 CTL_LUN_FLAG_DEVID = 0x20, 330 CTL_LUN_FLAG_DEV_TYPE = 0x40, 331 CTL_LUN_FLAG_UNMAP = 0x80, 332 CTL_LUN_FLAG_EJECTED = 0x100, 333 CTL_LUN_FLAG_READONLY = 0x200 334} ctl_backend_lun_flags; 335 336/* 337 * LUN creation parameters: 338 * 339 * flags: Various LUN flags, see above. 340 * 341 * device_type: The SCSI device type. e.g. 0 for Direct Access, 342 * 3 for Processor, etc. Only certain backends may 343 * support setting this field. The CTL_LUN_FLAG_DEV_TYPE 344 * flag should be set in the flags field if the device 345 * type is set. 346 * 347 * lun_size_bytes: The size of the LUN in bytes. For some backends 348 * this is relevant (e.g. ramdisk), for others, it may 349 * be ignored in favor of using the properties of the 350 * backing store. If specified, this should be a 351 * multiple of the blocksize. 352 * 353 * The actual size of the LUN is returned in this 354 * field. 355 * 356 * blocksize_bytes: The LUN blocksize in bytes. For some backends this 357 * is relevant, for others it may be ignored in 358 * favor of using the properties of the backing store. 359 * 360 * The actual blocksize of the LUN is returned in this 361 * field. 362 * 363 * req_lun_id: The requested LUN ID. The CTL_LUN_FLAG_ID_REQ flag 364 * should be set if this is set. The request will be 365 * granted if the LUN number is available, otherwise 366 * the LUN addition request will fail. 367 * 368 * The allocated LUN number is returned in this field. 369 * 370 * serial_num: This is the value returned in SCSI INQUIRY VPD page 371 * 0x80. If it is specified, the CTL_LUN_FLAG_SERIAL_NUM 372 * flag should be set. 373 * 374 * The serial number value used is returned in this 375 * field. 376 * 377 * device_id: This is the value returned in the T10 vendor ID 378 * based DESIGNATOR field in the SCSI INQUIRY VPD page 379 * 0x83 data. If it is specified, the CTL_LUN_FLAG_DEVID 380 * flag should be set. 381 * 382 * The device id value used is returned in this field. 383 */ 384struct ctl_lun_create_params { 385 ctl_backend_lun_flags flags; 386 uint8_t device_type; 387 uint64_t lun_size_bytes; 388 uint32_t blocksize_bytes; 389 uint32_t req_lun_id; 390 uint8_t serial_num[CTL_SN_LEN]; 391 uint8_t device_id[CTL_DEVID_LEN]; 392}; 393 394/* 395 * LUN removal parameters: 396 * 397 * lun_id: The number of the LUN to delete. This must be set. 398 * The LUN must be backed by the given backend. 399 */ 400struct ctl_lun_rm_params { 401 uint32_t lun_id; 402}; 403 404/* 405 * LUN modification parameters: 406 * 407 * lun_id: The number of the LUN to modify. This must be set. 408 * The LUN must be backed by the given backend. 409 * 410 * lun_size_bytes: The size of the LUN in bytes. If zero, update 411 * the size using the backing file size, if possible. 412 */ 413struct ctl_lun_modify_params { 414 uint32_t lun_id; 415 uint64_t lun_size_bytes; 416}; 417 418/* 419 * Union of request type data. Fill in the appropriate union member for 420 * the request type. 421 */ 422union ctl_lunreq_data { 423 struct ctl_lun_create_params create; 424 struct ctl_lun_rm_params rm; 425 struct ctl_lun_modify_params modify; 426}; 427 428/* 429 * LUN request interface: 430 * 431 * backend: This is required, and is NUL-terminated a string 432 * that is the name of the backend, like "ramdisk" or 433 * "block". 434 * 435 * reqtype: The type of request, CTL_LUNREQ_CREATE to create a 436 * LUN, CTL_LUNREQ_RM to delete a LUN. 437 * 438 * reqdata: Request type-specific information. See the 439 * description of individual the union members above 440 * for more information. 441 * 442 * num_be_args: This is the number of backend-specific arguments 443 * in the be_args array. 444 * 445 * be_args: This is an array of backend-specific arguments. 446 * See above for a description of the fields in this 447 * structure. 448 * 449 * status: Status of the LUN request. 450 * 451 * error_str: If the status is CTL_LUN_ERROR, this will 452 * contain a string describing the error. 453 * 454 * kern_be_args: For kernel use only. 455 */ 456struct ctl_lun_req { 457#define CTL_BE_NAME_LEN 32 458 char backend[CTL_BE_NAME_LEN]; 459 ctl_lunreq_type reqtype; 460 union ctl_lunreq_data reqdata; 461 void * args; 462 nvlist_t * args_nvl; 463 size_t args_len; 464 void * result; 465 nvlist_t * result_nvl; 466 size_t result_len; 467 ctl_lun_status status; 468 char error_str[CTL_ERROR_STR_LEN]; 469}; 470 471/* 472 * LUN list status: 473 * 474 * NONE: No status. 475 * 476 * OK: Request completed successfully. 477 * 478 * NEED_MORE_SPACE: The allocated length of the entries field is too 479 * small for the available data. 480 * 481 * ERROR: An error occurred, look at the error string for a 482 * description of the error. 483 */ 484typedef enum { 485 CTL_LUN_LIST_NONE, 486 CTL_LUN_LIST_OK, 487 CTL_LUN_LIST_NEED_MORE_SPACE, 488 CTL_LUN_LIST_ERROR 489} ctl_lun_list_status; 490 491/* 492 * LUN list interface 493 * 494 * backend_name: This is a NUL-terminated string. If the string 495 * length is 0, then all LUNs on all backends will 496 * be enumerated. Otherwise this is the name of the 497 * backend to be enumerated, like "ramdisk" or "block". 498 * 499 * alloc_len: The length of the data buffer allocated for entries. 500 * In order to properly size the buffer, make one call 501 * with alloc_len set to 0, and then use the returned 502 * dropped_len as the buffer length to allocate and 503 * pass in on a subsequent call. 504 * 505 * lun_xml: XML-formatted information on the requested LUNs. 506 * 507 * fill_len: The amount of data filled in the storage for entries. 508 * 509 * status: The status of the request. See above for the 510 * description of the values of this field. 511 * 512 * error_str: If the status indicates an error, this string will 513 * be filled in to describe the error. 514 */ 515struct ctl_lun_list { 516 char backend[CTL_BE_NAME_LEN]; /* passed to kernel*/ 517 uint32_t alloc_len; /* passed to kernel */ 518 char *lun_xml; /* filled in kernel */ 519 uint32_t fill_len; /* passed to userland */ 520 ctl_lun_list_status status; /* passed to userland */ 521 char error_str[CTL_ERROR_STR_LEN]; 522 /* passed to userland */ 523}; 524 525/* 526 * Port request interface: 527 * 528 * driver: This is required, and is NUL-terminated a string 529 * that is the name of the frontend, like "iscsi" . 530 * 531 * reqtype: The type of request, CTL_REQ_CREATE to create a 532 * port, CTL_REQ_REMOVE to delete a port. 533 * 534 * num_be_args: This is the number of frontend-specific arguments 535 * in the be_args array. 536 * 537 * be_args: This is an array of frontend-specific arguments. 538 * See above for a description of the fields in this 539 * structure. 540 * 541 * status: Status of the request. 542 * 543 * error_str: If the status is CTL_LUN_ERROR, this will 544 * contain a string describing the error. 545 * 546 * kern_be_args: For kernel use only. 547 */ 548typedef enum { 549 CTL_REQ_CREATE, 550 CTL_REQ_REMOVE, 551 CTL_REQ_MODIFY, 552} ctl_req_type; 553 554struct ctl_req { 555 char driver[CTL_DRIVER_NAME_LEN]; 556 ctl_req_type reqtype; 557 void * args; 558 nvlist_t * args_nvl; 559 size_t args_len; 560 void * result; 561 nvlist_t * result_nvl; 562 size_t result_len; 563 ctl_lun_status status; 564 char error_str[CTL_ERROR_STR_LEN]; 565}; 566 567/* 568 * iSCSI status 569 * 570 * OK: Request completed successfully. 571 * 572 * ERROR: An error occurred, look at the error string for a 573 * description of the error. 574 * 575 * CTL_ISCSI_LIST_NEED_MORE_SPACE: 576 * User has to pass larger buffer for CTL_ISCSI_LIST ioctl. 577 */ 578typedef enum { 579 CTL_ISCSI_OK, 580 CTL_ISCSI_ERROR, 581 CTL_ISCSI_LIST_NEED_MORE_SPACE, 582 CTL_ISCSI_SESSION_NOT_FOUND 583} ctl_iscsi_status; 584 585typedef enum { 586 CTL_ISCSI_HANDOFF, 587 CTL_ISCSI_LIST, 588 CTL_ISCSI_LOGOUT, 589 CTL_ISCSI_TERMINATE, 590 CTL_ISCSI_LIMITS, 591#if defined(ICL_KERNEL_PROXY) || 1 592 /* 593 * We actually need those in all cases, but leave the ICL_KERNEL_PROXY, 594 * to remember to remove them along with rest of proxy code, eventually. 595 */ 596 CTL_ISCSI_LISTEN, 597 CTL_ISCSI_ACCEPT, 598 CTL_ISCSI_SEND, 599 CTL_ISCSI_RECEIVE, 600#endif 601} ctl_iscsi_type; 602 603typedef enum { 604 CTL_ISCSI_DIGEST_NONE, 605 CTL_ISCSI_DIGEST_CRC32C 606} ctl_iscsi_digest; 607 608#define CTL_ISCSI_NAME_LEN 224 /* 223 bytes, by RFC 3720, + '\0' */ 609#define CTL_ISCSI_ADDR_LEN 47 /* INET6_ADDRSTRLEN + '\0' */ 610#define CTL_ISCSI_ALIAS_LEN 128 /* Arbitrary. */ 611#define CTL_ISCSI_OFFLOAD_LEN 8 /* Arbitrary. */ 612 613struct ctl_iscsi_handoff_params { 614 char initiator_name[CTL_ISCSI_NAME_LEN]; 615 char initiator_addr[CTL_ISCSI_ADDR_LEN]; 616 char initiator_alias[CTL_ISCSI_ALIAS_LEN]; 617 uint8_t initiator_isid[6]; 618 char target_name[CTL_ISCSI_NAME_LEN]; 619 int socket; 620 int portal_group_tag; 621 622 /* 623 * Connection parameters negotiated by ctld(8). 624 */ 625 ctl_iscsi_digest header_digest; 626 ctl_iscsi_digest data_digest; 627 uint32_t cmdsn; 628 uint32_t statsn; 629 int max_recv_data_segment_length; 630 int max_burst_length; 631 int first_burst_length; 632 uint32_t immediate_data; 633 char offload[CTL_ISCSI_OFFLOAD_LEN]; 634#ifdef ICL_KERNEL_PROXY 635 int connection_id; 636#else 637 int spare; 638#endif 639 int max_send_data_segment_length; 640}; 641 642struct ctl_iscsi_list_params { 643 uint32_t alloc_len; /* passed to kernel */ 644 char *conn_xml; /* filled in kernel */ 645 uint32_t fill_len; /* passed to userland */ 646 int spare[4]; 647}; 648 649struct ctl_iscsi_logout_params { 650 int connection_id; /* passed to kernel */ 651 char initiator_name[CTL_ISCSI_NAME_LEN]; 652 /* passed to kernel */ 653 char initiator_addr[CTL_ISCSI_ADDR_LEN]; 654 /* passed to kernel */ 655 int all; /* passed to kernel */ 656 int spare[4]; 657}; 658 659struct ctl_iscsi_terminate_params { 660 int connection_id; /* passed to kernel */ 661 char initiator_name[CTL_ISCSI_NAME_LEN]; 662 /* passed to kernel */ 663 char initiator_addr[CTL_ISCSI_NAME_LEN]; 664 /* passed to kernel */ 665 int all; /* passed to kernel */ 666 int spare[4]; 667}; 668 669struct ctl_iscsi_limits_params { 670 /* passed to kernel */ 671 char offload[CTL_ISCSI_OFFLOAD_LEN]; 672 673 /* passed to userland */ 674 size_t spare; 675 int max_recv_data_segment_length; 676 int max_send_data_segment_length; 677 int max_burst_length; 678 int first_burst_length; 679}; 680 681#ifdef ICL_KERNEL_PROXY 682struct ctl_iscsi_listen_params { 683 int iser; 684 int domain; 685 int socktype; 686 int protocol; 687 struct sockaddr *addr; 688 socklen_t addrlen; 689 int portal_id; 690 int spare[4]; 691}; 692 693struct ctl_iscsi_accept_params { 694 int connection_id; 695 int portal_id; 696 struct sockaddr *initiator_addr; 697 socklen_t initiator_addrlen; 698 int spare[4]; 699}; 700 701struct ctl_iscsi_send_params { 702 int connection_id; 703 void *bhs; 704 size_t spare; 705 void *spare2; 706 size_t data_segment_len; 707 void *data_segment; 708 int spare3[4]; 709}; 710 711struct ctl_iscsi_receive_params { 712 int connection_id; 713 void *bhs; 714 size_t spare; 715 void *spare2; 716 size_t data_segment_len; 717 void *data_segment; 718 int spare3[4]; 719}; 720 721#endif /* ICL_KERNEL_PROXY */ 722 723union ctl_iscsi_data { 724 struct ctl_iscsi_handoff_params handoff; 725 struct ctl_iscsi_list_params list; 726 struct ctl_iscsi_logout_params logout; 727 struct ctl_iscsi_terminate_params terminate; 728 struct ctl_iscsi_limits_params limits; 729#ifdef ICL_KERNEL_PROXY 730 struct ctl_iscsi_listen_params listen; 731 struct ctl_iscsi_accept_params accept; 732 struct ctl_iscsi_send_params send; 733 struct ctl_iscsi_receive_params receive; 734#endif 735}; 736 737/* 738 * iSCSI interface 739 * 740 * status: The status of the request. See above for the 741 * description of the values of this field. 742 * 743 * error_str: If the status indicates an error, this string will 744 * be filled in to describe the error. 745 */ 746struct ctl_iscsi { 747 ctl_iscsi_type type; /* passed to kernel */ 748 union ctl_iscsi_data data; /* passed to kernel */ 749 ctl_iscsi_status status; /* passed to userland */ 750 char error_str[CTL_ERROR_STR_LEN]; 751 /* passed to userland */ 752}; 753 754struct ctl_lun_map { 755 uint32_t port; 756 uint32_t plun; 757 uint32_t lun; 758}; 759 760#define CTL_IO _IOWR(CTL_MINOR, 0x00, union ctl_io) 761#define CTL_ENABLE_PORT _IOW(CTL_MINOR, 0x04, struct ctl_port_entry) 762#define CTL_DISABLE_PORT _IOW(CTL_MINOR, 0x05, struct ctl_port_entry) 763#define CTL_DELAY_IO _IOWR(CTL_MINOR, 0x10, struct ctl_io_delay_info) 764#define CTL_ERROR_INJECT _IOWR(CTL_MINOR, 0x16, struct ctl_error_desc) 765#define CTL_GET_OOA _IOWR(CTL_MINOR, 0x18, struct ctl_ooa) 766#define CTL_DUMP_STRUCTS _IO(CTL_MINOR, 0x19) 767#define CTL_LUN_REQ _IOWR(CTL_MINOR, 0x21, struct ctl_lun_req) 768#define CTL_LUN_LIST _IOWR(CTL_MINOR, 0x22, struct ctl_lun_list) 769#define CTL_ERROR_INJECT_DELETE _IOW(CTL_MINOR, 0x23, struct ctl_error_desc) 770#define CTL_SET_PORT_WWNS _IOW(CTL_MINOR, 0x24, struct ctl_port_entry) 771#define CTL_ISCSI _IOWR(CTL_MINOR, 0x25, struct ctl_iscsi) 772#define CTL_PORT_REQ _IOWR(CTL_MINOR, 0x26, struct ctl_req) 773#define CTL_PORT_LIST _IOWR(CTL_MINOR, 0x27, struct ctl_lun_list) 774#define CTL_LUN_MAP _IOW(CTL_MINOR, 0x28, struct ctl_lun_map) 775#define CTL_GET_LUN_STATS _IOWR(CTL_MINOR, 0x29, struct ctl_get_io_stats) 776#define CTL_GET_PORT_STATS _IOWR(CTL_MINOR, 0x2a, struct ctl_get_io_stats) 777 778#endif /* _CTL_IOCTL_H_ */ 779 780/* 781 * vim: ts=8 782 */ 783