1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * iSCSI User/Kernel Shares (Defines, Constants, Protocol definitions, etc) 4 * 5 * Copyright (C) 2005 Dmitry Yusupov 6 * Copyright (C) 2005 Alex Aizman 7 * maintained by open-iscsi@googlegroups.com 8 */ 9 10 #ifndef ISCSI_IF_H 11 #define ISCSI_IF_H 12 13 #include <scsi/iscsi_proto.h> 14 #include <linux/in.h> 15 #include <linux/in6.h> 16 17 #define ISCSI_NL_GRP_ISCSID 1 18 #define ISCSI_NL_GRP_UIP 2 19 20 #define UEVENT_BASE 10 21 #define KEVENT_BASE 100 22 #define ISCSI_ERR_BASE 1000 23 24 enum iscsi_uevent_e { 25 ISCSI_UEVENT_UNKNOWN = 0, 26 27 /* down events */ 28 ISCSI_UEVENT_CREATE_SESSION = UEVENT_BASE + 1, 29 ISCSI_UEVENT_DESTROY_SESSION = UEVENT_BASE + 2, 30 ISCSI_UEVENT_CREATE_CONN = UEVENT_BASE + 3, 31 ISCSI_UEVENT_DESTROY_CONN = UEVENT_BASE + 4, 32 ISCSI_UEVENT_BIND_CONN = UEVENT_BASE + 5, 33 ISCSI_UEVENT_SET_PARAM = UEVENT_BASE + 6, 34 ISCSI_UEVENT_START_CONN = UEVENT_BASE + 7, 35 ISCSI_UEVENT_STOP_CONN = UEVENT_BASE + 8, 36 ISCSI_UEVENT_SEND_PDU = UEVENT_BASE + 9, 37 ISCSI_UEVENT_GET_STATS = UEVENT_BASE + 10, 38 ISCSI_UEVENT_GET_PARAM = UEVENT_BASE + 11, 39 40 ISCSI_UEVENT_TRANSPORT_EP_CONNECT = UEVENT_BASE + 12, 41 ISCSI_UEVENT_TRANSPORT_EP_POLL = UEVENT_BASE + 13, 42 ISCSI_UEVENT_TRANSPORT_EP_DISCONNECT = UEVENT_BASE + 14, 43 44 ISCSI_UEVENT_TGT_DSCVR = UEVENT_BASE + 15, 45 ISCSI_UEVENT_SET_HOST_PARAM = UEVENT_BASE + 16, 46 ISCSI_UEVENT_UNBIND_SESSION = UEVENT_BASE + 17, 47 ISCSI_UEVENT_CREATE_BOUND_SESSION = UEVENT_BASE + 18, 48 ISCSI_UEVENT_TRANSPORT_EP_CONNECT_THROUGH_HOST = UEVENT_BASE + 19, 49 50 ISCSI_UEVENT_PATH_UPDATE = UEVENT_BASE + 20, 51 ISCSI_UEVENT_SET_IFACE_PARAMS = UEVENT_BASE + 21, 52 ISCSI_UEVENT_PING = UEVENT_BASE + 22, 53 ISCSI_UEVENT_GET_CHAP = UEVENT_BASE + 23, 54 ISCSI_UEVENT_DELETE_CHAP = UEVENT_BASE + 24, 55 ISCSI_UEVENT_SET_FLASHNODE_PARAMS = UEVENT_BASE + 25, 56 ISCSI_UEVENT_NEW_FLASHNODE = UEVENT_BASE + 26, 57 ISCSI_UEVENT_DEL_FLASHNODE = UEVENT_BASE + 27, 58 ISCSI_UEVENT_LOGIN_FLASHNODE = UEVENT_BASE + 28, 59 ISCSI_UEVENT_LOGOUT_FLASHNODE = UEVENT_BASE + 29, 60 ISCSI_UEVENT_LOGOUT_FLASHNODE_SID = UEVENT_BASE + 30, 61 ISCSI_UEVENT_SET_CHAP = UEVENT_BASE + 31, 62 ISCSI_UEVENT_GET_HOST_STATS = UEVENT_BASE + 32, 63 ISCSI_UEVENT_DESTROY_SESSION_ASYNC = UEVENT_BASE + 33, 64 65 /* up events */ 66 ISCSI_KEVENT_RECV_PDU = KEVENT_BASE + 1, 67 ISCSI_KEVENT_CONN_ERROR = KEVENT_BASE + 2, 68 ISCSI_KEVENT_IF_ERROR = KEVENT_BASE + 3, 69 ISCSI_KEVENT_DESTROY_SESSION = KEVENT_BASE + 4, 70 ISCSI_KEVENT_UNBIND_SESSION = KEVENT_BASE + 5, 71 ISCSI_KEVENT_CREATE_SESSION = KEVENT_BASE + 6, 72 73 ISCSI_KEVENT_PATH_REQ = KEVENT_BASE + 7, 74 ISCSI_KEVENT_IF_DOWN = KEVENT_BASE + 8, 75 ISCSI_KEVENT_CONN_LOGIN_STATE = KEVENT_BASE + 9, 76 ISCSI_KEVENT_HOST_EVENT = KEVENT_BASE + 10, 77 ISCSI_KEVENT_PING_COMP = KEVENT_BASE + 11, 78 }; 79 80 enum iscsi_tgt_dscvr { 81 ISCSI_TGT_DSCVR_SEND_TARGETS = 1, 82 ISCSI_TGT_DSCVR_ISNS = 2, 83 ISCSI_TGT_DSCVR_SLP = 3, 84 }; 85 86 enum iscsi_host_event_code { 87 ISCSI_EVENT_LINKUP = 1, 88 ISCSI_EVENT_LINKDOWN, 89 /* must always be last */ 90 ISCSI_EVENT_MAX, 91 }; 92 93 struct iscsi_uevent { 94 uint32_t type; /* k/u events type */ 95 uint32_t iferror; /* carries interface or resource errors */ 96 uint64_t transport_handle; 97 98 union { 99 /* messages u -> k */ 100 struct msg_create_session { 101 uint32_t initial_cmdsn; 102 uint16_t cmds_max; 103 uint16_t queue_depth; 104 } c_session; 105 struct msg_create_bound_session { 106 uint64_t ep_handle; 107 uint32_t initial_cmdsn; 108 uint16_t cmds_max; 109 uint16_t queue_depth; 110 } c_bound_session; 111 struct msg_destroy_session { 112 uint32_t sid; 113 } d_session; 114 struct msg_create_conn { 115 uint32_t sid; 116 uint32_t cid; 117 } c_conn; 118 struct msg_bind_conn { 119 uint32_t sid; 120 uint32_t cid; 121 uint64_t transport_eph; 122 uint32_t is_leading; 123 } b_conn; 124 struct msg_destroy_conn { 125 uint32_t sid; 126 uint32_t cid; 127 } d_conn; 128 struct msg_send_pdu { 129 uint32_t sid; 130 uint32_t cid; 131 uint32_t hdr_size; 132 uint32_t data_size; 133 } send_pdu; 134 struct msg_set_param { 135 uint32_t sid; 136 uint32_t cid; 137 uint32_t param; /* enum iscsi_param */ 138 uint32_t len; 139 } set_param; 140 struct msg_start_conn { 141 uint32_t sid; 142 uint32_t cid; 143 } start_conn; 144 struct msg_stop_conn { 145 uint32_t sid; 146 uint32_t cid; 147 uint64_t conn_handle; 148 uint32_t flag; 149 } stop_conn; 150 struct msg_get_stats { 151 uint32_t sid; 152 uint32_t cid; 153 } get_stats; 154 struct msg_transport_connect { 155 uint32_t non_blocking; 156 } ep_connect; 157 struct msg_transport_connect_through_host { 158 uint32_t host_no; 159 uint32_t non_blocking; 160 } ep_connect_through_host; 161 struct msg_transport_poll { 162 uint64_t ep_handle; 163 uint32_t timeout_ms; 164 } ep_poll; 165 struct msg_transport_disconnect { 166 uint64_t ep_handle; 167 } ep_disconnect; 168 struct msg_tgt_dscvr { 169 enum iscsi_tgt_dscvr type; 170 uint32_t host_no; 171 /* 172 * enable = 1 to establish a new connection 173 * with the server. enable = 0 to disconnect 174 * from the server. Used primarily to switch 175 * from one iSNS server to another. 176 */ 177 uint32_t enable; 178 } tgt_dscvr; 179 struct msg_set_host_param { 180 uint32_t host_no; 181 uint32_t param; /* enum iscsi_host_param */ 182 uint32_t len; 183 } set_host_param; 184 struct msg_set_path { 185 uint32_t host_no; 186 } set_path; 187 struct msg_set_iface_params { 188 uint32_t host_no; 189 uint32_t count; 190 } set_iface_params; 191 struct msg_iscsi_ping { 192 uint32_t host_no; 193 uint32_t iface_num; 194 uint32_t iface_type; 195 uint32_t payload_size; 196 uint32_t pid; /* unique ping id associated 197 with each ping request */ 198 } iscsi_ping; 199 struct msg_get_chap { 200 uint32_t host_no; 201 uint32_t num_entries; /* number of CHAP entries 202 * on request, number of 203 * valid CHAP entries on 204 * response */ 205 uint16_t chap_tbl_idx; 206 } get_chap; 207 struct msg_delete_chap { 208 uint32_t host_no; 209 uint16_t chap_tbl_idx; 210 } delete_chap; 211 struct msg_set_flashnode_param { 212 uint32_t host_no; 213 uint32_t flashnode_idx; 214 uint32_t count; 215 } set_flashnode; 216 struct msg_new_flashnode { 217 uint32_t host_no; 218 uint32_t len; 219 } new_flashnode; 220 struct msg_del_flashnode { 221 uint32_t host_no; 222 uint32_t flashnode_idx; 223 } del_flashnode; 224 struct msg_login_flashnode { 225 uint32_t host_no; 226 uint32_t flashnode_idx; 227 } login_flashnode; 228 struct msg_logout_flashnode { 229 uint32_t host_no; 230 uint32_t flashnode_idx; 231 } logout_flashnode; 232 struct msg_logout_flashnode_sid { 233 uint32_t host_no; 234 uint32_t sid; 235 } logout_flashnode_sid; 236 struct msg_get_host_stats { 237 uint32_t host_no; 238 } get_host_stats; 239 } u; 240 union { 241 /* messages k -> u */ 242 int retcode; 243 struct msg_create_session_ret { 244 uint32_t sid; 245 uint32_t host_no; 246 } c_session_ret; 247 struct msg_create_conn_ret { 248 uint32_t sid; 249 uint32_t cid; 250 } c_conn_ret; 251 struct msg_unbind_session { 252 uint32_t sid; 253 uint32_t host_no; 254 } unbind_session; 255 struct msg_recv_req { 256 uint32_t sid; 257 uint32_t cid; 258 uint64_t recv_handle; 259 } recv_req; 260 struct msg_conn_login { 261 uint32_t sid; 262 uint32_t cid; 263 uint32_t state; /* enum iscsi_conn_state */ 264 } conn_login; 265 struct msg_conn_error { 266 uint32_t sid; 267 uint32_t cid; 268 uint32_t error; /* enum iscsi_err */ 269 } connerror; 270 struct msg_session_destroyed { 271 uint32_t host_no; 272 uint32_t sid; 273 } d_session; 274 struct msg_transport_connect_ret { 275 uint64_t handle; 276 } ep_connect_ret; 277 struct msg_req_path { 278 uint32_t host_no; 279 } req_path; 280 struct msg_notify_if_down { 281 uint32_t host_no; 282 } notify_if_down; 283 struct msg_host_event { 284 uint32_t host_no; 285 uint32_t data_size; 286 enum iscsi_host_event_code code; 287 } host_event; 288 struct msg_ping_comp { 289 uint32_t host_no; 290 uint32_t status; /* enum 291 * iscsi_ping_status_code */ 292 uint32_t pid; /* unique ping id associated 293 with each ping request */ 294 uint32_t data_size; 295 } ping_comp; 296 struct msg_new_flashnode_ret { 297 uint32_t flashnode_idx; 298 } new_flashnode_ret; 299 } r; 300 } __attribute__ ((aligned (sizeof(uint64_t)))); 301 302 enum iscsi_param_type { 303 ISCSI_PARAM, /* iscsi_param (session, conn, target, LU) */ 304 ISCSI_HOST_PARAM, /* iscsi_host_param */ 305 ISCSI_NET_PARAM, /* iscsi_net_param */ 306 ISCSI_FLASHNODE_PARAM, /* iscsi_flashnode_param */ 307 ISCSI_CHAP_PARAM, /* iscsi_chap_param */ 308 ISCSI_IFACE_PARAM, /* iscsi_iface_param */ 309 }; 310 311 /* structure for minimalist usecase */ 312 struct iscsi_param_info { 313 uint32_t len; /* Actual length of the param value */ 314 uint16_t param; /* iscsi param */ 315 uint8_t value[]; /* length sized value follows */ 316 } __packed; 317 318 struct iscsi_iface_param_info { 319 uint32_t iface_num; /* iface number, 0 - n */ 320 uint32_t len; /* Actual length of the param */ 321 uint16_t param; /* iscsi param value */ 322 uint8_t iface_type; /* IPv4 or IPv6 */ 323 uint8_t param_type; /* iscsi_param_type */ 324 uint8_t value[]; /* length sized value follows */ 325 } __packed; 326 327 /* 328 * To keep the struct iscsi_uevent size the same for userspace code 329 * compatibility, the main structure for ISCSI_UEVENT_PATH_UPDATE and 330 * ISCSI_KEVENT_PATH_REQ is defined separately and comes after the 331 * struct iscsi_uevent in the NETLINK_ISCSI message. 332 */ 333 struct iscsi_path { 334 uint64_t handle; 335 uint8_t mac_addr[6]; 336 uint8_t mac_addr_old[6]; 337 uint32_t ip_addr_len; /* 4 or 16 */ 338 union { 339 struct in_addr v4_addr; 340 struct in6_addr v6_addr; 341 } src; 342 union { 343 struct in_addr v4_addr; 344 struct in6_addr v6_addr; 345 } dst; 346 uint16_t vlan_id; 347 uint16_t pmtu; 348 } __attribute__ ((aligned (sizeof(uint64_t)))); 349 350 /* iscsi iface enabled/disabled setting */ 351 #define ISCSI_IFACE_DISABLE 0x01 352 #define ISCSI_IFACE_ENABLE 0x02 353 354 /* ipv4 bootproto */ 355 #define ISCSI_BOOTPROTO_STATIC 0x01 356 #define ISCSI_BOOTPROTO_DHCP 0x02 357 358 /* ipv6 addr autoconfig type */ 359 #define ISCSI_IPV6_AUTOCFG_DISABLE 0x01 360 #define ISCSI_IPV6_AUTOCFG_ND_ENABLE 0x02 361 #define ISCSI_IPV6_AUTOCFG_DHCPV6_ENABLE 0x03 362 363 /* ipv6 link local addr type */ 364 #define ISCSI_IPV6_LINKLOCAL_AUTOCFG_ENABLE 0x01 365 #define ISCSI_IPV6_LINKLOCAL_AUTOCFG_DISABLE 0x02 366 367 /* ipv6 router addr type */ 368 #define ISCSI_IPV6_ROUTER_AUTOCFG_ENABLE 0x01 369 #define ISCSI_IPV6_ROUTER_AUTOCFG_DISABLE 0x02 370 371 #define ISCSI_IFACE_TYPE_IPV4 0x01 372 #define ISCSI_IFACE_TYPE_IPV6 0x02 373 374 #define ISCSI_MAX_VLAN_ID 4095 375 #define ISCSI_MAX_VLAN_PRIORITY 7 376 377 /* iscsi vlan enable/disabled setting */ 378 #define ISCSI_VLAN_DISABLE 0x01 379 #define ISCSI_VLAN_ENABLE 0x02 380 381 /* iscsi generic enable/disabled setting for various features */ 382 #define ISCSI_NET_PARAM_DISABLE 0x01 383 #define ISCSI_NET_PARAM_ENABLE 0x02 384 385 /* iSCSI network params */ 386 enum iscsi_net_param { 387 ISCSI_NET_PARAM_IPV4_ADDR = 1, 388 ISCSI_NET_PARAM_IPV4_SUBNET, 389 ISCSI_NET_PARAM_IPV4_GW, 390 ISCSI_NET_PARAM_IPV4_BOOTPROTO, 391 ISCSI_NET_PARAM_MAC, 392 ISCSI_NET_PARAM_IPV6_LINKLOCAL, 393 ISCSI_NET_PARAM_IPV6_ADDR, 394 ISCSI_NET_PARAM_IPV6_ROUTER, 395 ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG, 396 ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG, 397 ISCSI_NET_PARAM_IPV6_ROUTER_AUTOCFG, 398 ISCSI_NET_PARAM_IFACE_ENABLE, 399 ISCSI_NET_PARAM_VLAN_ID, 400 ISCSI_NET_PARAM_VLAN_PRIORITY, 401 ISCSI_NET_PARAM_VLAN_ENABLED, 402 ISCSI_NET_PARAM_VLAN_TAG, 403 ISCSI_NET_PARAM_IFACE_TYPE, 404 ISCSI_NET_PARAM_IFACE_NAME, 405 ISCSI_NET_PARAM_MTU, 406 ISCSI_NET_PARAM_PORT, 407 ISCSI_NET_PARAM_IPADDR_STATE, 408 ISCSI_NET_PARAM_IPV6_LINKLOCAL_STATE, 409 ISCSI_NET_PARAM_IPV6_ROUTER_STATE, 410 ISCSI_NET_PARAM_DELAYED_ACK_EN, 411 ISCSI_NET_PARAM_TCP_NAGLE_DISABLE, 412 ISCSI_NET_PARAM_TCP_WSF_DISABLE, 413 ISCSI_NET_PARAM_TCP_WSF, 414 ISCSI_NET_PARAM_TCP_TIMER_SCALE, 415 ISCSI_NET_PARAM_TCP_TIMESTAMP_EN, 416 ISCSI_NET_PARAM_CACHE_ID, 417 ISCSI_NET_PARAM_IPV4_DHCP_DNS_ADDR_EN, 418 ISCSI_NET_PARAM_IPV4_DHCP_SLP_DA_EN, 419 ISCSI_NET_PARAM_IPV4_TOS_EN, 420 ISCSI_NET_PARAM_IPV4_TOS, 421 ISCSI_NET_PARAM_IPV4_GRAT_ARP_EN, 422 ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID_EN, 423 ISCSI_NET_PARAM_IPV4_DHCP_ALT_CLIENT_ID, 424 ISCSI_NET_PARAM_IPV4_DHCP_REQ_VENDOR_ID_EN, 425 ISCSI_NET_PARAM_IPV4_DHCP_USE_VENDOR_ID_EN, 426 ISCSI_NET_PARAM_IPV4_DHCP_VENDOR_ID, 427 ISCSI_NET_PARAM_IPV4_DHCP_LEARN_IQN_EN, 428 ISCSI_NET_PARAM_IPV4_FRAGMENT_DISABLE, 429 ISCSI_NET_PARAM_IPV4_IN_FORWARD_EN, 430 ISCSI_NET_PARAM_IPV4_TTL, 431 ISCSI_NET_PARAM_IPV6_GRAT_NEIGHBOR_ADV_EN, 432 ISCSI_NET_PARAM_IPV6_MLD_EN, 433 ISCSI_NET_PARAM_IPV6_FLOW_LABEL, 434 ISCSI_NET_PARAM_IPV6_TRAFFIC_CLASS, 435 ISCSI_NET_PARAM_IPV6_HOP_LIMIT, 436 ISCSI_NET_PARAM_IPV6_ND_REACHABLE_TMO, 437 ISCSI_NET_PARAM_IPV6_ND_REXMIT_TIME, 438 ISCSI_NET_PARAM_IPV6_ND_STALE_TMO, 439 ISCSI_NET_PARAM_IPV6_DUP_ADDR_DETECT_CNT, 440 ISCSI_NET_PARAM_IPV6_RTR_ADV_LINK_MTU, 441 ISCSI_NET_PARAM_REDIRECT_EN, 442 }; 443 444 enum iscsi_ipaddress_state { 445 ISCSI_IPDDRESS_STATE_UNCONFIGURED, 446 ISCSI_IPDDRESS_STATE_ACQUIRING, 447 ISCSI_IPDDRESS_STATE_TENTATIVE, 448 ISCSI_IPDDRESS_STATE_VALID, 449 ISCSI_IPDDRESS_STATE_DISABLING, 450 ISCSI_IPDDRESS_STATE_INVALID, 451 ISCSI_IPDDRESS_STATE_DEPRECATED, 452 }; 453 454 enum iscsi_router_state { 455 ISCSI_ROUTER_STATE_UNKNOWN, 456 ISCSI_ROUTER_STATE_ADVERTISED, 457 ISCSI_ROUTER_STATE_MANUAL, 458 ISCSI_ROUTER_STATE_STALE, 459 }; 460 461 /* iSCSI specific settings params for iface */ 462 enum iscsi_iface_param { 463 ISCSI_IFACE_PARAM_DEF_TASKMGMT_TMO, 464 ISCSI_IFACE_PARAM_HDRDGST_EN, 465 ISCSI_IFACE_PARAM_DATADGST_EN, 466 ISCSI_IFACE_PARAM_IMM_DATA_EN, 467 ISCSI_IFACE_PARAM_INITIAL_R2T_EN, 468 ISCSI_IFACE_PARAM_DATASEQ_INORDER_EN, 469 ISCSI_IFACE_PARAM_PDU_INORDER_EN, 470 ISCSI_IFACE_PARAM_ERL, 471 ISCSI_IFACE_PARAM_MAX_RECV_DLENGTH, 472 ISCSI_IFACE_PARAM_FIRST_BURST, 473 ISCSI_IFACE_PARAM_MAX_R2T, 474 ISCSI_IFACE_PARAM_MAX_BURST, 475 ISCSI_IFACE_PARAM_CHAP_AUTH_EN, 476 ISCSI_IFACE_PARAM_BIDI_CHAP_EN, 477 ISCSI_IFACE_PARAM_DISCOVERY_AUTH_OPTIONAL, 478 ISCSI_IFACE_PARAM_DISCOVERY_LOGOUT_EN, 479 ISCSI_IFACE_PARAM_STRICT_LOGIN_COMP_EN, 480 ISCSI_IFACE_PARAM_INITIATOR_NAME, 481 }; 482 483 enum iscsi_conn_state { 484 ISCSI_CONN_STATE_FREE, 485 ISCSI_CONN_STATE_XPT_WAIT, 486 ISCSI_CONN_STATE_IN_LOGIN, 487 ISCSI_CONN_STATE_LOGGED_IN, 488 ISCSI_CONN_STATE_IN_LOGOUT, 489 ISCSI_CONN_STATE_LOGOUT_REQUESTED, 490 ISCSI_CONN_STATE_CLEANUP_WAIT, 491 }; 492 493 /* 494 * Common error codes 495 */ 496 enum iscsi_err { 497 ISCSI_OK = 0, 498 499 ISCSI_ERR_DATASN = ISCSI_ERR_BASE + 1, 500 ISCSI_ERR_DATA_OFFSET = ISCSI_ERR_BASE + 2, 501 ISCSI_ERR_MAX_CMDSN = ISCSI_ERR_BASE + 3, 502 ISCSI_ERR_EXP_CMDSN = ISCSI_ERR_BASE + 4, 503 ISCSI_ERR_BAD_OPCODE = ISCSI_ERR_BASE + 5, 504 ISCSI_ERR_DATALEN = ISCSI_ERR_BASE + 6, 505 ISCSI_ERR_AHSLEN = ISCSI_ERR_BASE + 7, 506 ISCSI_ERR_PROTO = ISCSI_ERR_BASE + 8, 507 ISCSI_ERR_LUN = ISCSI_ERR_BASE + 9, 508 ISCSI_ERR_BAD_ITT = ISCSI_ERR_BASE + 10, 509 ISCSI_ERR_CONN_FAILED = ISCSI_ERR_BASE + 11, 510 ISCSI_ERR_R2TSN = ISCSI_ERR_BASE + 12, 511 ISCSI_ERR_SESSION_FAILED = ISCSI_ERR_BASE + 13, 512 ISCSI_ERR_HDR_DGST = ISCSI_ERR_BASE + 14, 513 ISCSI_ERR_DATA_DGST = ISCSI_ERR_BASE + 15, 514 ISCSI_ERR_PARAM_NOT_FOUND = ISCSI_ERR_BASE + 16, 515 ISCSI_ERR_NO_SCSI_CMD = ISCSI_ERR_BASE + 17, 516 ISCSI_ERR_INVALID_HOST = ISCSI_ERR_BASE + 18, 517 ISCSI_ERR_XMIT_FAILED = ISCSI_ERR_BASE + 19, 518 ISCSI_ERR_TCP_CONN_CLOSE = ISCSI_ERR_BASE + 20, 519 ISCSI_ERR_SCSI_EH_SESSION_RST = ISCSI_ERR_BASE + 21, 520 ISCSI_ERR_NOP_TIMEDOUT = ISCSI_ERR_BASE + 22, 521 }; 522 523 /* 524 * iSCSI Parameters (RFC3720) 525 */ 526 enum iscsi_param { 527 /* passed in using netlink set param */ 528 ISCSI_PARAM_MAX_RECV_DLENGTH, 529 ISCSI_PARAM_MAX_XMIT_DLENGTH, 530 ISCSI_PARAM_HDRDGST_EN, 531 ISCSI_PARAM_DATADGST_EN, 532 ISCSI_PARAM_INITIAL_R2T_EN, 533 ISCSI_PARAM_MAX_R2T, 534 ISCSI_PARAM_IMM_DATA_EN, 535 ISCSI_PARAM_FIRST_BURST, 536 ISCSI_PARAM_MAX_BURST, 537 ISCSI_PARAM_PDU_INORDER_EN, 538 ISCSI_PARAM_DATASEQ_INORDER_EN, 539 ISCSI_PARAM_ERL, 540 ISCSI_PARAM_IFMARKER_EN, 541 ISCSI_PARAM_OFMARKER_EN, 542 ISCSI_PARAM_EXP_STATSN, 543 ISCSI_PARAM_TARGET_NAME, 544 ISCSI_PARAM_TPGT, 545 ISCSI_PARAM_PERSISTENT_ADDRESS, 546 ISCSI_PARAM_PERSISTENT_PORT, 547 ISCSI_PARAM_SESS_RECOVERY_TMO, 548 549 /* passed in through bind conn using transport_fd */ 550 ISCSI_PARAM_CONN_PORT, 551 ISCSI_PARAM_CONN_ADDRESS, 552 553 ISCSI_PARAM_USERNAME, 554 ISCSI_PARAM_USERNAME_IN, 555 ISCSI_PARAM_PASSWORD, 556 ISCSI_PARAM_PASSWORD_IN, 557 558 ISCSI_PARAM_FAST_ABORT, 559 ISCSI_PARAM_ABORT_TMO, 560 ISCSI_PARAM_LU_RESET_TMO, 561 ISCSI_PARAM_HOST_RESET_TMO, 562 563 ISCSI_PARAM_PING_TMO, 564 ISCSI_PARAM_RECV_TMO, 565 566 ISCSI_PARAM_IFACE_NAME, 567 ISCSI_PARAM_ISID, 568 ISCSI_PARAM_INITIATOR_NAME, 569 570 ISCSI_PARAM_TGT_RESET_TMO, 571 ISCSI_PARAM_TARGET_ALIAS, 572 573 ISCSI_PARAM_CHAP_IN_IDX, 574 ISCSI_PARAM_CHAP_OUT_IDX, 575 576 ISCSI_PARAM_BOOT_ROOT, 577 ISCSI_PARAM_BOOT_NIC, 578 ISCSI_PARAM_BOOT_TARGET, 579 580 ISCSI_PARAM_AUTO_SND_TGT_DISABLE, 581 ISCSI_PARAM_DISCOVERY_SESS, 582 ISCSI_PARAM_PORTAL_TYPE, 583 ISCSI_PARAM_CHAP_AUTH_EN, 584 ISCSI_PARAM_DISCOVERY_LOGOUT_EN, 585 ISCSI_PARAM_BIDI_CHAP_EN, 586 ISCSI_PARAM_DISCOVERY_AUTH_OPTIONAL, 587 588 ISCSI_PARAM_DEF_TIME2WAIT, 589 ISCSI_PARAM_DEF_TIME2RETAIN, 590 ISCSI_PARAM_MAX_SEGMENT_SIZE, 591 ISCSI_PARAM_STATSN, 592 ISCSI_PARAM_KEEPALIVE_TMO, 593 ISCSI_PARAM_LOCAL_PORT, 594 ISCSI_PARAM_TSID, 595 ISCSI_PARAM_DEF_TASKMGMT_TMO, 596 597 ISCSI_PARAM_TCP_TIMESTAMP_STAT, 598 ISCSI_PARAM_TCP_WSF_DISABLE, 599 ISCSI_PARAM_TCP_NAGLE_DISABLE, 600 ISCSI_PARAM_TCP_TIMER_SCALE, 601 ISCSI_PARAM_TCP_TIMESTAMP_EN, 602 ISCSI_PARAM_TCP_XMIT_WSF, 603 ISCSI_PARAM_TCP_RECV_WSF, 604 ISCSI_PARAM_IP_FRAGMENT_DISABLE, 605 ISCSI_PARAM_IPV4_TOS, 606 ISCSI_PARAM_IPV6_TC, 607 ISCSI_PARAM_IPV6_FLOW_LABEL, 608 ISCSI_PARAM_IS_FW_ASSIGNED_IPV6, 609 610 ISCSI_PARAM_DISCOVERY_PARENT_IDX, 611 ISCSI_PARAM_DISCOVERY_PARENT_TYPE, 612 ISCSI_PARAM_LOCAL_IPADDR, 613 /* must always be last */ 614 ISCSI_PARAM_MAX, 615 }; 616 617 /* iSCSI HBA params */ 618 enum iscsi_host_param { 619 ISCSI_HOST_PARAM_HWADDRESS, 620 ISCSI_HOST_PARAM_INITIATOR_NAME, 621 ISCSI_HOST_PARAM_NETDEV_NAME, 622 ISCSI_HOST_PARAM_IPADDRESS, 623 ISCSI_HOST_PARAM_PORT_STATE, 624 ISCSI_HOST_PARAM_PORT_SPEED, 625 ISCSI_HOST_PARAM_MAX, 626 }; 627 628 /* portal type */ 629 #define PORTAL_TYPE_IPV4 "ipv4" 630 #define PORTAL_TYPE_IPV6 "ipv6" 631 632 /* iSCSI Flash Target params */ 633 enum iscsi_flashnode_param { 634 ISCSI_FLASHNODE_IS_FW_ASSIGNED_IPV6, 635 ISCSI_FLASHNODE_PORTAL_TYPE, 636 ISCSI_FLASHNODE_AUTO_SND_TGT_DISABLE, 637 ISCSI_FLASHNODE_DISCOVERY_SESS, 638 ISCSI_FLASHNODE_ENTRY_EN, 639 ISCSI_FLASHNODE_HDR_DGST_EN, 640 ISCSI_FLASHNODE_DATA_DGST_EN, 641 ISCSI_FLASHNODE_IMM_DATA_EN, 642 ISCSI_FLASHNODE_INITIAL_R2T_EN, 643 ISCSI_FLASHNODE_DATASEQ_INORDER, 644 ISCSI_FLASHNODE_PDU_INORDER, 645 ISCSI_FLASHNODE_CHAP_AUTH_EN, 646 ISCSI_FLASHNODE_SNACK_REQ_EN, 647 ISCSI_FLASHNODE_DISCOVERY_LOGOUT_EN, 648 ISCSI_FLASHNODE_BIDI_CHAP_EN, 649 /* make authentication for discovery sessions optional */ 650 ISCSI_FLASHNODE_DISCOVERY_AUTH_OPTIONAL, 651 ISCSI_FLASHNODE_ERL, 652 ISCSI_FLASHNODE_TCP_TIMESTAMP_STAT, 653 ISCSI_FLASHNODE_TCP_NAGLE_DISABLE, 654 ISCSI_FLASHNODE_TCP_WSF_DISABLE, 655 ISCSI_FLASHNODE_TCP_TIMER_SCALE, 656 ISCSI_FLASHNODE_TCP_TIMESTAMP_EN, 657 ISCSI_FLASHNODE_IP_FRAG_DISABLE, 658 ISCSI_FLASHNODE_MAX_RECV_DLENGTH, 659 ISCSI_FLASHNODE_MAX_XMIT_DLENGTH, 660 ISCSI_FLASHNODE_FIRST_BURST, 661 ISCSI_FLASHNODE_DEF_TIME2WAIT, 662 ISCSI_FLASHNODE_DEF_TIME2RETAIN, 663 ISCSI_FLASHNODE_MAX_R2T, 664 ISCSI_FLASHNODE_KEEPALIVE_TMO, 665 ISCSI_FLASHNODE_ISID, 666 ISCSI_FLASHNODE_TSID, 667 ISCSI_FLASHNODE_PORT, 668 ISCSI_FLASHNODE_MAX_BURST, 669 ISCSI_FLASHNODE_DEF_TASKMGMT_TMO, 670 ISCSI_FLASHNODE_IPADDR, 671 ISCSI_FLASHNODE_ALIAS, 672 ISCSI_FLASHNODE_REDIRECT_IPADDR, 673 ISCSI_FLASHNODE_MAX_SEGMENT_SIZE, 674 ISCSI_FLASHNODE_LOCAL_PORT, 675 ISCSI_FLASHNODE_IPV4_TOS, 676 ISCSI_FLASHNODE_IPV6_TC, 677 ISCSI_FLASHNODE_IPV6_FLOW_LABEL, 678 ISCSI_FLASHNODE_NAME, 679 ISCSI_FLASHNODE_TPGT, 680 ISCSI_FLASHNODE_LINK_LOCAL_IPV6, 681 ISCSI_FLASHNODE_DISCOVERY_PARENT_IDX, 682 ISCSI_FLASHNODE_DISCOVERY_PARENT_TYPE, 683 ISCSI_FLASHNODE_TCP_XMIT_WSF, 684 ISCSI_FLASHNODE_TCP_RECV_WSF, 685 ISCSI_FLASHNODE_CHAP_IN_IDX, 686 ISCSI_FLASHNODE_CHAP_OUT_IDX, 687 ISCSI_FLASHNODE_USERNAME, 688 ISCSI_FLASHNODE_USERNAME_IN, 689 ISCSI_FLASHNODE_PASSWORD, 690 ISCSI_FLASHNODE_PASSWORD_IN, 691 ISCSI_FLASHNODE_STATSN, 692 ISCSI_FLASHNODE_EXP_STATSN, 693 ISCSI_FLASHNODE_IS_BOOT_TGT, 694 695 ISCSI_FLASHNODE_MAX, 696 }; 697 698 struct iscsi_flashnode_param_info { 699 uint32_t len; /* Actual length of the param */ 700 uint16_t param; /* iscsi param value */ 701 uint8_t value[]; /* length sized value follows */ 702 } __packed; 703 704 enum iscsi_discovery_parent_type { 705 ISCSI_DISC_PARENT_UNKNOWN = 0x1, 706 ISCSI_DISC_PARENT_SENDTGT = 0x2, 707 ISCSI_DISC_PARENT_ISNS = 0x3, 708 }; 709 710 /* iSCSI port Speed */ 711 enum iscsi_port_speed { 712 ISCSI_PORT_SPEED_UNKNOWN = 0x1, 713 ISCSI_PORT_SPEED_10MBPS = 0x2, 714 ISCSI_PORT_SPEED_100MBPS = 0x4, 715 ISCSI_PORT_SPEED_1GBPS = 0x8, 716 ISCSI_PORT_SPEED_10GBPS = 0x10, 717 ISCSI_PORT_SPEED_25GBPS = 0x20, 718 ISCSI_PORT_SPEED_40GBPS = 0x40, 719 }; 720 721 /* iSCSI port state */ 722 enum iscsi_port_state { 723 ISCSI_PORT_STATE_DOWN = 0x1, 724 ISCSI_PORT_STATE_UP = 0x2, 725 }; 726 727 /* iSCSI PING status/error code */ 728 enum iscsi_ping_status_code { 729 ISCSI_PING_SUCCESS = 0, 730 ISCSI_PING_FW_DISABLED = 0x1, 731 ISCSI_PING_IPADDR_INVALID = 0x2, 732 ISCSI_PING_LINKLOCAL_IPV6_ADDR_INVALID = 0x3, 733 ISCSI_PING_TIMEOUT = 0x4, 734 ISCSI_PING_INVALID_DEST_ADDR = 0x5, 735 ISCSI_PING_OVERSIZE_PACKET = 0x6, 736 ISCSI_PING_ICMP_ERROR = 0x7, 737 ISCSI_PING_MAX_REQ_EXCEEDED = 0x8, 738 ISCSI_PING_NO_ARP_RECEIVED = 0x9, 739 }; 740 741 #define iscsi_ptr(_handle) ((void*)(unsigned long)_handle) 742 #define iscsi_handle(_ptr) ((uint64_t)(unsigned long)_ptr) 743 744 /* 745 * These flags presents iSCSI Data-Path capabilities. 746 */ 747 #define CAP_RECOVERY_L0 0x1 748 #define CAP_RECOVERY_L1 0x2 749 #define CAP_RECOVERY_L2 0x4 750 #define CAP_MULTI_R2T 0x8 751 #define CAP_HDRDGST 0x10 752 #define CAP_DATADGST 0x20 753 #define CAP_MULTI_CONN 0x40 754 #define CAP_TEXT_NEGO 0x80 755 #define CAP_MARKERS 0x100 756 #define CAP_FW_DB 0x200 757 #define CAP_SENDTARGETS_OFFLOAD 0x400 /* offload discovery process */ 758 #define CAP_DATA_PATH_OFFLOAD 0x800 /* offload entire IO path */ 759 #define CAP_DIGEST_OFFLOAD 0x1000 /* offload hdr and data digests */ 760 #define CAP_PADDING_OFFLOAD 0x2000 /* offload padding insertion, removal, 761 and verification */ 762 #define CAP_LOGIN_OFFLOAD 0x4000 /* offload session login */ 763 764 /* 765 * These flags describes reason of stop_conn() call 766 */ 767 #define STOP_CONN_TERM 0x1 768 #define STOP_CONN_SUSPEND 0x2 769 #define STOP_CONN_RECOVER 0x3 770 771 #define ISCSI_STATS_CUSTOM_MAX 32 772 #define ISCSI_STATS_CUSTOM_DESC_MAX 64 773 struct iscsi_stats_custom { 774 char desc[ISCSI_STATS_CUSTOM_DESC_MAX]; 775 uint64_t value; 776 }; 777 778 /* 779 * struct iscsi_stats - iSCSI Statistics (iSCSI MIB) 780 * 781 * Note: this structure contains counters collected on per-connection basis. 782 */ 783 struct iscsi_stats { 784 /* octets */ 785 uint64_t txdata_octets; 786 uint64_t rxdata_octets; 787 788 /* xmit pdus */ 789 uint32_t noptx_pdus; 790 uint32_t scsicmd_pdus; 791 uint32_t tmfcmd_pdus; 792 uint32_t login_pdus; 793 uint32_t text_pdus; 794 uint32_t dataout_pdus; 795 uint32_t logout_pdus; 796 uint32_t snack_pdus; 797 798 /* recv pdus */ 799 uint32_t noprx_pdus; 800 uint32_t scsirsp_pdus; 801 uint32_t tmfrsp_pdus; 802 uint32_t textrsp_pdus; 803 uint32_t datain_pdus; 804 uint32_t logoutrsp_pdus; 805 uint32_t r2t_pdus; 806 uint32_t async_pdus; 807 uint32_t rjt_pdus; 808 809 /* errors */ 810 uint32_t digest_err; 811 uint32_t timeout_err; 812 813 /* 814 * iSCSI Custom Statistics support, i.e. Transport could 815 * extend existing MIB statistics with its own specific statistics 816 * up to ISCSI_STATS_CUSTOM_MAX 817 */ 818 uint32_t custom_length; 819 struct iscsi_stats_custom custom[] 820 __attribute__ ((aligned (sizeof(uint64_t)))); 821 }; 822 823 enum chap_type_e { 824 CHAP_TYPE_OUT, 825 CHAP_TYPE_IN, 826 }; 827 828 enum iscsi_chap_param { 829 ISCSI_CHAP_PARAM_INDEX, 830 ISCSI_CHAP_PARAM_CHAP_TYPE, 831 ISCSI_CHAP_PARAM_USERNAME, 832 ISCSI_CHAP_PARAM_PASSWORD, 833 ISCSI_CHAP_PARAM_PASSWORD_LEN 834 }; 835 836 #define ISCSI_CHAP_AUTH_NAME_MAX_LEN 256 837 #define ISCSI_CHAP_AUTH_SECRET_MAX_LEN 256 838 struct iscsi_chap_rec { 839 uint16_t chap_tbl_idx; 840 enum chap_type_e chap_type; 841 char username[ISCSI_CHAP_AUTH_NAME_MAX_LEN]; 842 uint8_t password[ISCSI_CHAP_AUTH_SECRET_MAX_LEN]; 843 uint8_t password_length; 844 }; 845 846 #define ISCSI_HOST_STATS_CUSTOM_MAX 32 847 #define ISCSI_HOST_STATS_CUSTOM_DESC_MAX 64 848 struct iscsi_host_stats_custom { 849 char desc[ISCSI_HOST_STATS_CUSTOM_DESC_MAX]; 850 uint64_t value; 851 }; 852 853 /* struct iscsi_offload_host_stats: Host statistics, 854 * Include statistics for MAC, IP, TCP & iSCSI. 855 */ 856 struct iscsi_offload_host_stats { 857 /* MAC */ 858 uint64_t mactx_frames; 859 uint64_t mactx_bytes; 860 uint64_t mactx_multicast_frames; 861 uint64_t mactx_broadcast_frames; 862 uint64_t mactx_pause_frames; 863 uint64_t mactx_control_frames; 864 uint64_t mactx_deferral; 865 uint64_t mactx_excess_deferral; 866 uint64_t mactx_late_collision; 867 uint64_t mactx_abort; 868 uint64_t mactx_single_collision; 869 uint64_t mactx_multiple_collision; 870 uint64_t mactx_collision; 871 uint64_t mactx_frames_dropped; 872 uint64_t mactx_jumbo_frames; 873 uint64_t macrx_frames; 874 uint64_t macrx_bytes; 875 uint64_t macrx_unknown_control_frames; 876 uint64_t macrx_pause_frames; 877 uint64_t macrx_control_frames; 878 uint64_t macrx_dribble; 879 uint64_t macrx_frame_length_error; 880 uint64_t macrx_jabber; 881 uint64_t macrx_carrier_sense_error; 882 uint64_t macrx_frame_discarded; 883 uint64_t macrx_frames_dropped; 884 uint64_t mac_crc_error; 885 uint64_t mac_encoding_error; 886 uint64_t macrx_length_error_large; 887 uint64_t macrx_length_error_small; 888 uint64_t macrx_multicast_frames; 889 uint64_t macrx_broadcast_frames; 890 /* IP */ 891 uint64_t iptx_packets; 892 uint64_t iptx_bytes; 893 uint64_t iptx_fragments; 894 uint64_t iprx_packets; 895 uint64_t iprx_bytes; 896 uint64_t iprx_fragments; 897 uint64_t ip_datagram_reassembly; 898 uint64_t ip_invalid_address_error; 899 uint64_t ip_error_packets; 900 uint64_t ip_fragrx_overlap; 901 uint64_t ip_fragrx_outoforder; 902 uint64_t ip_datagram_reassembly_timeout; 903 uint64_t ipv6tx_packets; 904 uint64_t ipv6tx_bytes; 905 uint64_t ipv6tx_fragments; 906 uint64_t ipv6rx_packets; 907 uint64_t ipv6rx_bytes; 908 uint64_t ipv6rx_fragments; 909 uint64_t ipv6_datagram_reassembly; 910 uint64_t ipv6_invalid_address_error; 911 uint64_t ipv6_error_packets; 912 uint64_t ipv6_fragrx_overlap; 913 uint64_t ipv6_fragrx_outoforder; 914 uint64_t ipv6_datagram_reassembly_timeout; 915 /* TCP */ 916 uint64_t tcptx_segments; 917 uint64_t tcptx_bytes; 918 uint64_t tcprx_segments; 919 uint64_t tcprx_byte; 920 uint64_t tcp_duplicate_ack_retx; 921 uint64_t tcp_retx_timer_expired; 922 uint64_t tcprx_duplicate_ack; 923 uint64_t tcprx_pure_ackr; 924 uint64_t tcptx_delayed_ack; 925 uint64_t tcptx_pure_ack; 926 uint64_t tcprx_segment_error; 927 uint64_t tcprx_segment_outoforder; 928 uint64_t tcprx_window_probe; 929 uint64_t tcprx_window_update; 930 uint64_t tcptx_window_probe_persist; 931 /* ECC */ 932 uint64_t ecc_error_correction; 933 /* iSCSI */ 934 uint64_t iscsi_pdu_tx; 935 uint64_t iscsi_data_bytes_tx; 936 uint64_t iscsi_pdu_rx; 937 uint64_t iscsi_data_bytes_rx; 938 uint64_t iscsi_io_completed; 939 uint64_t iscsi_unexpected_io_rx; 940 uint64_t iscsi_format_error; 941 uint64_t iscsi_hdr_digest_error; 942 uint64_t iscsi_data_digest_error; 943 uint64_t iscsi_sequence_error; 944 /* 945 * iSCSI Custom Host Statistics support, i.e. Transport could 946 * extend existing host statistics with its own specific statistics 947 * up to ISCSI_HOST_STATS_CUSTOM_MAX 948 */ 949 uint32_t custom_length; 950 struct iscsi_host_stats_custom custom[] 951 __aligned(sizeof(uint64_t)); 952 }; 953 954 #endif 955