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 | |