Commit | Line | Data |
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1a59d1b8 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
39e84790 | 2 | /* |
1da177e4 LT |
3 | * iSCSI transport class definitions |
4 | * | |
5 | * Copyright (C) IBM Corporation, 2004 | |
7996a778 | 6 | * Copyright (C) Mike Christie, 2004 - 2006 |
39e84790 AA |
7 | * Copyright (C) Dmitry Yusupov, 2004 - 2005 |
8 | * Copyright (C) Alex Aizman, 2004 - 2005 | |
1da177e4 LT |
9 | */ |
10 | #ifndef SCSI_TRANSPORT_ISCSI_H | |
11 | #define SCSI_TRANSPORT_ISCSI_H | |
12 | ||
7b8631b5 | 13 | #include <linux/device.h> |
d773c082 MT |
14 | #include <linux/list.h> |
15 | #include <linux/mutex.h> | |
39e84790 | 16 | #include <scsi/iscsi_if.h> |
1da177e4 | 17 | |
7b8631b5 | 18 | struct scsi_transport_template; |
7996a778 | 19 | struct iscsi_transport; |
d82ff9be | 20 | struct iscsi_endpoint; |
7b8631b5 | 21 | struct Scsi_Host; |
c01be6dc | 22 | struct scsi_cmnd; |
7b8631b5 | 23 | struct iscsi_cls_conn; |
7996a778 | 24 | struct iscsi_conn; |
9c19a7d0 | 25 | struct iscsi_task; |
a54a52ca | 26 | struct sockaddr; |
8d07913d | 27 | struct iscsi_iface; |
90eeb01a | 28 | struct bsg_job; |
c6a4bb2e AC |
29 | struct iscsi_bus_flash_session; |
30 | struct iscsi_bus_flash_conn; | |
7b8631b5 | 31 | |
39e84790 AA |
32 | /** |
33 | * struct iscsi_transport - iSCSI Transport template | |
34 | * | |
35 | * @name: transport name | |
36 | * @caps: iSCSI Data-Path capabilities | |
37 | * @create_session: create new iSCSI session object | |
38 | * @destroy_session: destroy existing iSCSI session object | |
39 | * @create_conn: create new iSCSI connection | |
40 | * @bind_conn: associate this connection with existing iSCSI session | |
41 | * and specified transport descriptor | |
42 | * @destroy_conn: destroy inactive iSCSI connection | |
a54a52ca MC |
43 | * @set_param: set iSCSI parameter. Return 0 on success, -ENODATA |
44 | * when param is not supported, and a -Exx value on other | |
45 | * error. | |
46 | * @get_param get iSCSI parameter. Must return number of bytes | |
47 | * copied to buffer on success, -ENODATA when param | |
48 | * is not supported, and a -Exx value on other error | |
39e84790 AA |
49 | * @start_conn: set connection to be operational |
50 | * @stop_conn: suspend/recover/terminate connection | |
51 | * @send_pdu: send iSCSI PDU, Login, Logout, NOP-Out, Reject, Text. | |
7996a778 | 52 | * @session_recovery_timedout: notify LLD a block during recovery timed out |
3e5c28ad MC |
53 | * @init_task: Initialize a iscsi_task and any internal structs. |
54 | * When offloading the data path, this is called from | |
55 | * queuecommand with the session lock, or from the | |
56 | * iscsi_conn_send_pdu context with the session lock. | |
57 | * When not offloading the data path, this is called | |
58 | * from the scsi work queue without the session lock. | |
59 | * @xmit_task Requests LLD to transfer cmd task. Returns 0 or the | |
3219e529 | 60 | * the number of bytes transferred on success, and -Exyz |
3e5c28ad MC |
61 | * value on error. When offloading the data path, this |
62 | * is called from queuecommand with the session lock, or | |
63 | * from the iscsi_conn_send_pdu context with the session | |
64 | * lock. When not offloading the data path, this is called | |
65 | * from the scsi work queue without the session lock. | |
66 | * @cleanup_task: requests LLD to fail task. Called with session lock | |
67 | * and after the connection has been suspended and | |
68 | * terminated during recovery. If called | |
7996a778 MC |
69 | * from abort task then connection is not suspended |
70 | * or terminated but sk_callback_lock is held | |
39e84790 AA |
71 | * |
72 | * Template API provided by iSCSI Transport | |
73 | */ | |
74 | struct iscsi_transport { | |
75 | struct module *owner; | |
76 | char *name; | |
77 | unsigned int caps; | |
8d07913d | 78 | |
d82ff9be | 79 | struct iscsi_cls_session *(*create_session) (struct iscsi_endpoint *ep, |
75613521 | 80 | uint16_t cmds_max, uint16_t qdepth, |
5e7facb7 | 81 | uint32_t sn); |
7b7232f3 MC |
82 | void (*destroy_session) (struct iscsi_cls_session *session); |
83 | struct iscsi_cls_conn *(*create_conn) (struct iscsi_cls_session *sess, | |
7b8631b5 | 84 | uint32_t cid); |
7b7232f3 MC |
85 | int (*bind_conn) (struct iscsi_cls_session *session, |
86 | struct iscsi_cls_conn *cls_conn, | |
264faaaa | 87 | uint64_t transport_eph, int is_leading); |
7b7232f3 MC |
88 | int (*start_conn) (struct iscsi_cls_conn *conn); |
89 | void (*stop_conn) (struct iscsi_cls_conn *conn, int flag); | |
7b8631b5 | 90 | void (*destroy_conn) (struct iscsi_cls_conn *conn); |
7b7232f3 | 91 | int (*set_param) (struct iscsi_cls_conn *conn, enum iscsi_param param, |
a54a52ca | 92 | char *buf, int buflen); |
289324b0 MC |
93 | int (*get_ep_param) (struct iscsi_endpoint *ep, enum iscsi_param param, |
94 | char *buf); | |
7b7232f3 | 95 | int (*get_conn_param) (struct iscsi_cls_conn *conn, |
a54a52ca | 96 | enum iscsi_param param, char *buf); |
7b7232f3 | 97 | int (*get_session_param) (struct iscsi_cls_session *session, |
a54a52ca | 98 | enum iscsi_param param, char *buf); |
1819dc81 MC |
99 | int (*get_host_param) (struct Scsi_Host *shost, |
100 | enum iscsi_host_param param, char *buf); | |
1d9bf13a MC |
101 | int (*set_host_param) (struct Scsi_Host *shost, |
102 | enum iscsi_host_param param, char *buf, | |
103 | int buflen); | |
7b7232f3 | 104 | int (*send_pdu) (struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr, |
39e84790 | 105 | char *data, uint32_t data_size); |
7b7232f3 MC |
106 | void (*get_stats) (struct iscsi_cls_conn *conn, |
107 | struct iscsi_stats *stats); | |
577577da | 108 | |
9c19a7d0 MC |
109 | int (*init_task) (struct iscsi_task *task); |
110 | int (*xmit_task) (struct iscsi_task *task); | |
577577da MC |
111 | void (*cleanup_task) (struct iscsi_task *task); |
112 | ||
2ff79d52 | 113 | int (*alloc_pdu) (struct iscsi_task *task, uint8_t opcode); |
577577da MC |
114 | int (*xmit_pdu) (struct iscsi_task *task); |
115 | int (*init_pdu) (struct iscsi_task *task, unsigned int offset, | |
116 | unsigned int count); | |
262ef636 MC |
117 | void (*parse_pdu_itt) (struct iscsi_conn *conn, itt_t itt, |
118 | int *index, int *age); | |
119 | ||
30a6c652 | 120 | void (*session_recovery_timedout) (struct iscsi_cls_session *session); |
10eb0f01 MC |
121 | struct iscsi_endpoint *(*ep_connect) (struct Scsi_Host *shost, |
122 | struct sockaddr *dst_addr, | |
d82ff9be MC |
123 | int non_blocking); |
124 | int (*ep_poll) (struct iscsi_endpoint *ep, int timeout_ms); | |
125 | void (*ep_disconnect) (struct iscsi_endpoint *ep); | |
2174a04e | 126 | int (*tgt_dscvr) (struct Scsi_Host *shost, enum iscsi_tgt_dscvr type, |
01cb225d | 127 | uint32_t enable, struct sockaddr *dst_addr); |
43514774 | 128 | int (*set_path) (struct Scsi_Host *shost, struct iscsi_path *params); |
00c31889 MC |
129 | int (*set_iface_param) (struct Scsi_Host *shost, void *data, |
130 | uint32_t len); | |
8d07913d MC |
131 | int (*get_iface_param) (struct iscsi_iface *iface, |
132 | enum iscsi_param_type param_type, | |
133 | int param, char *buf); | |
587a1f16 | 134 | umode_t (*attr_is_visible)(int param_type, int param); |
90eeb01a | 135 | int (*bsg_request)(struct bsg_job *job); |
ac20c7bf VC |
136 | int (*send_ping) (struct Scsi_Host *shost, uint32_t iface_num, |
137 | uint32_t iface_type, uint32_t payload_size, | |
138 | uint32_t pid, struct sockaddr *dst_addr); | |
6260a5d2 NJ |
139 | int (*get_chap) (struct Scsi_Host *shost, uint16_t chap_tbl_idx, |
140 | uint32_t *num_entries, char *buf); | |
141 | int (*delete_chap) (struct Scsi_Host *shost, uint16_t chap_tbl_idx); | |
3af142fe | 142 | int (*set_chap) (struct Scsi_Host *shost, void *data, int len); |
c6a4bb2e AC |
143 | int (*get_flashnode_param) (struct iscsi_bus_flash_session *fnode_sess, |
144 | int param, char *buf); | |
145 | int (*set_flashnode_param) (struct iscsi_bus_flash_session *fnode_sess, | |
146 | struct iscsi_bus_flash_conn *fnode_conn, | |
147 | void *data, int len); | |
148 | int (*new_flashnode) (struct Scsi_Host *shost, const char *buf, | |
149 | int len); | |
150 | int (*del_flashnode) (struct iscsi_bus_flash_session *fnode_sess); | |
151 | int (*login_flashnode) (struct iscsi_bus_flash_session *fnode_sess, | |
152 | struct iscsi_bus_flash_conn *fnode_conn); | |
153 | int (*logout_flashnode) (struct iscsi_bus_flash_session *fnode_sess, | |
154 | struct iscsi_bus_flash_conn *fnode_conn); | |
155 | int (*logout_flashnode_sid) (struct iscsi_cls_session *cls_sess); | |
6fa7c554 | 156 | int (*get_host_stats) (struct Scsi_Host *shost, char *buf, int len); |
55e51eda | 157 | u8 (*check_protection)(struct iscsi_task *task, sector_t *sector); |
1da177e4 LT |
158 | }; |
159 | ||
160 | /* | |
39e84790 | 161 | * transport registration upcalls |
1da177e4 | 162 | */ |
7b8631b5 | 163 | extern struct scsi_transport_template *iscsi_register_transport(struct iscsi_transport *tt); |
39e84790 | 164 | extern int iscsi_unregister_transport(struct iscsi_transport *tt); |
1da177e4 LT |
165 | |
166 | /* | |
39e84790 | 167 | * control plane upcalls |
1da177e4 | 168 | */ |
e5bd7b54 MC |
169 | extern void iscsi_conn_error_event(struct iscsi_cls_conn *conn, |
170 | enum iscsi_err error); | |
17fa575e MR |
171 | extern void iscsi_conn_login_event(struct iscsi_cls_conn *conn, |
172 | enum iscsi_conn_state state); | |
7b7232f3 | 173 | extern int iscsi_recv_pdu(struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr, |
39e84790 | 174 | char *data, uint32_t data_size); |
1da177e4 | 175 | |
43514774 MC |
176 | extern int iscsi_offload_mesg(struct Scsi_Host *shost, |
177 | struct iscsi_transport *transport, uint32_t type, | |
178 | char *data, uint16_t data_size); | |
179 | ||
a11e2545 VC |
180 | extern void iscsi_post_host_event(uint32_t host_no, |
181 | struct iscsi_transport *transport, | |
182 | enum iscsi_host_event_code code, | |
183 | uint32_t data_size, | |
184 | uint8_t *data); | |
185 | ||
ac20c7bf VC |
186 | extern void iscsi_ping_comp_event(uint32_t host_no, |
187 | struct iscsi_transport *transport, | |
188 | uint32_t status, uint32_t pid, | |
189 | uint32_t data_size, uint8_t *data); | |
190 | ||
7b8631b5 MC |
191 | struct iscsi_cls_conn { |
192 | struct list_head conn_list; /* item in connlist */ | |
193 | void *dd_data; /* LLD private data */ | |
194 | struct iscsi_transport *transport; | |
b5c7a12d | 195 | uint32_t cid; /* connection id */ |
22a39fbb MC |
196 | struct mutex ep_mutex; |
197 | struct iscsi_endpoint *ep; | |
fd7255f5 | 198 | |
7b8631b5 | 199 | struct device dev; /* sysfs transport/container device */ |
7b8631b5 MC |
200 | }; |
201 | ||
202 | #define iscsi_dev_to_conn(_dev) \ | |
203 | container_of(_dev, struct iscsi_cls_conn, dev) | |
204 | ||
3128c6c7 MC |
205 | #define transport_class_to_conn(_cdev) \ |
206 | iscsi_dev_to_conn(_cdev->parent) | |
207 | ||
6eabafbe MC |
208 | #define iscsi_conn_to_session(_conn) \ |
209 | iscsi_dev_to_session(_conn->dev.parent) | |
210 | ||
211 | /* iscsi class session state */ | |
212 | enum { | |
213 | ISCSI_SESSION_LOGGED_IN, | |
214 | ISCSI_SESSION_FAILED, | |
215 | ISCSI_SESSION_FREE, | |
216 | }; | |
7996a778 | 217 | |
7970634b MC |
218 | #define ISCSI_MAX_TARGET -1 |
219 | ||
7b8631b5 | 220 | struct iscsi_cls_session { |
7b7232f3 | 221 | struct list_head sess_list; /* item in session_list */ |
7b8631b5 | 222 | struct iscsi_transport *transport; |
6eabafbe | 223 | spinlock_t lock; |
45ab33b6 MC |
224 | struct work_struct block_work; |
225 | struct work_struct unblock_work; | |
bd976f62 MC |
226 | struct work_struct scan_work; |
227 | struct work_struct unbind_work; | |
fd7255f5 | 228 | |
30a6c652 MC |
229 | /* recovery fields */ |
230 | int recovery_tmo; | |
9c8108a4 | 231 | bool recovery_tmo_sysfs_override; |
c4028958 | 232 | struct delayed_work recovery_work; |
30a6c652 | 233 | |
7970634b | 234 | unsigned int target_id; |
8d4a690c | 235 | bool ida_used; |
30a6c652 | 236 | |
0c70d84b MC |
237 | /* |
238 | * pid of userspace process that created session or -1 if | |
239 | * created by the kernel. | |
240 | */ | |
241 | pid_t creator; | |
6eabafbe | 242 | int state; |
b5c7a12d MC |
243 | int sid; /* session id */ |
244 | void *dd_data; /* LLD private data */ | |
7b8631b5 MC |
245 | struct device dev; /* sysfs transport/container device */ |
246 | }; | |
247 | ||
248 | #define iscsi_dev_to_session(_dev) \ | |
249 | container_of(_dev, struct iscsi_cls_session, dev) | |
250 | ||
1d063c17 MC |
251 | #define transport_class_to_session(_cdev) \ |
252 | iscsi_dev_to_session(_cdev->parent) | |
253 | ||
7b8631b5 MC |
254 | #define iscsi_session_to_shost(_session) \ |
255 | dev_to_shost(_session->dev.parent) | |
256 | ||
8434aa8b MC |
257 | #define starget_to_session(_stgt) \ |
258 | iscsi_dev_to_session(_stgt->dev.parent) | |
259 | ||
32c6e1b9 | 260 | struct iscsi_cls_host { |
8aae18ad | 261 | atomic_t nr_scans; |
30a6c652 | 262 | struct mutex mutex; |
90eeb01a | 263 | struct request_queue *bsg_q; |
aeddde29 VC |
264 | uint32_t port_speed; |
265 | uint32_t port_state; | |
30a6c652 MC |
266 | }; |
267 | ||
90eeb01a MC |
268 | #define iscsi_job_to_shost(_job) \ |
269 | dev_to_shost(_job->dev) | |
270 | ||
a4804cd6 MC |
271 | extern void iscsi_host_for_each_session(struct Scsi_Host *shost, |
272 | void (*fn)(struct iscsi_cls_session *)); | |
273 | ||
d82ff9be MC |
274 | struct iscsi_endpoint { |
275 | void *dd_data; /* LLD private data */ | |
276 | struct device dev; | |
21536062 | 277 | uint64_t id; |
22a39fbb | 278 | struct iscsi_cls_conn *conn; |
d82ff9be | 279 | }; |
a4804cd6 | 280 | |
8d07913d MC |
281 | struct iscsi_iface { |
282 | struct device dev; | |
283 | struct iscsi_transport *transport; | |
284 | uint32_t iface_type; /* IPv4 or IPv6 */ | |
285 | uint32_t iface_num; /* iface number, 0 - n */ | |
286 | void *dd_data; /* LLD private data */ | |
287 | }; | |
288 | ||
289 | #define iscsi_dev_to_iface(_dev) \ | |
290 | container_of(_dev, struct iscsi_iface, dev) | |
291 | ||
292 | #define iscsi_iface_to_shost(_iface) \ | |
293 | dev_to_shost(_iface->dev.parent) | |
294 | ||
c6a4bb2e AC |
295 | |
296 | struct iscsi_bus_flash_conn { | |
297 | struct list_head conn_list; /* item in connlist */ | |
298 | void *dd_data; /* LLD private data */ | |
299 | struct iscsi_transport *transport; | |
300 | struct device dev; /* sysfs transport/container device */ | |
301 | /* iscsi connection parameters */ | |
302 | uint32_t exp_statsn; | |
303 | uint32_t statsn; | |
304 | unsigned max_recv_dlength; /* initiator_max_recv_dsl*/ | |
305 | unsigned max_xmit_dlength; /* target_max_recv_dsl */ | |
306 | unsigned max_segment_size; | |
307 | unsigned tcp_xmit_wsf; | |
308 | unsigned tcp_recv_wsf; | |
309 | int hdrdgst_en; | |
310 | int datadgst_en; | |
311 | int port; | |
312 | char *ipaddress; | |
313 | char *link_local_ipv6_addr; | |
314 | char *redirect_ipaddr; | |
315 | uint16_t keepalive_timeout; | |
316 | uint16_t local_port; | |
317 | uint8_t snack_req_en; | |
318 | /* tcp timestamp negotiation status */ | |
319 | uint8_t tcp_timestamp_stat; | |
320 | uint8_t tcp_nagle_disable; | |
321 | /* tcp window scale factor */ | |
322 | uint8_t tcp_wsf_disable; | |
323 | uint8_t tcp_timer_scale; | |
324 | uint8_t tcp_timestamp_en; | |
325 | uint8_t ipv4_tos; | |
326 | uint8_t ipv6_traffic_class; | |
327 | uint8_t ipv6_flow_label; | |
328 | uint8_t fragment_disable; | |
329 | /* Link local IPv6 address is assigned by firmware or driver */ | |
330 | uint8_t is_fw_assigned_ipv6; | |
331 | }; | |
332 | ||
333 | #define iscsi_dev_to_flash_conn(_dev) \ | |
334 | container_of(_dev, struct iscsi_bus_flash_conn, dev) | |
335 | ||
336 | #define iscsi_flash_conn_to_flash_session(_conn) \ | |
337 | iscsi_dev_to_flash_session(_conn->dev.parent) | |
338 | ||
339 | #define ISID_SIZE 6 | |
340 | ||
341 | struct iscsi_bus_flash_session { | |
342 | struct list_head sess_list; /* item in session_list */ | |
343 | struct iscsi_transport *transport; | |
344 | unsigned int target_id; | |
345 | int flash_state; /* persistent or non-persistent */ | |
346 | void *dd_data; /* LLD private data */ | |
347 | struct device dev; /* sysfs transport/container device */ | |
348 | /* iscsi session parameters */ | |
349 | unsigned first_burst; | |
350 | unsigned max_burst; | |
351 | unsigned short max_r2t; | |
352 | int default_taskmgmt_timeout; | |
353 | int initial_r2t_en; | |
354 | int imm_data_en; | |
355 | int time2wait; | |
356 | int time2retain; | |
357 | int pdu_inorder_en; | |
358 | int dataseq_inorder_en; | |
359 | int erl; | |
360 | int tpgt; | |
361 | char *username; | |
362 | char *username_in; | |
363 | char *password; | |
364 | char *password_in; | |
365 | char *targetname; | |
366 | char *targetalias; | |
367 | char *portal_type; | |
368 | uint16_t tsid; | |
369 | uint16_t chap_in_idx; | |
370 | uint16_t chap_out_idx; | |
371 | /* index of iSCSI discovery session if the entry is | |
372 | * discovered by iSCSI discovery session | |
373 | */ | |
374 | uint16_t discovery_parent_idx; | |
375 | /* indicates if discovery was done through iSNS discovery service | |
376 | * or through sendTarget */ | |
377 | uint16_t discovery_parent_type; | |
378 | /* Firmware auto sendtarget discovery disable */ | |
379 | uint8_t auto_snd_tgt_disable; | |
380 | uint8_t discovery_sess; | |
381 | /* indicates if this flashnode entry is enabled or disabled */ | |
382 | uint8_t entry_state; | |
383 | uint8_t chap_auth_en; | |
384 | /* enables firmware to auto logout the discovery session on discovery | |
385 | * completion | |
386 | */ | |
387 | uint8_t discovery_logout_en; | |
388 | uint8_t bidi_chap_en; | |
389 | /* makes authentication for discovery session optional */ | |
390 | uint8_t discovery_auth_optional; | |
391 | uint8_t isid[ISID_SIZE]; | |
392 | uint8_t is_boot_target; | |
393 | }; | |
394 | ||
395 | #define iscsi_dev_to_flash_session(_dev) \ | |
396 | container_of(_dev, struct iscsi_bus_flash_session, dev) | |
397 | ||
398 | #define iscsi_flash_session_to_shost(_session) \ | |
399 | dev_to_shost(_session->dev.parent) | |
400 | ||
7b8631b5 MC |
401 | /* |
402 | * session and connection functions that can be used by HW iSCSI LLDs | |
403 | */ | |
322d739d MC |
404 | #define iscsi_cls_session_printk(prefix, _cls_session, fmt, a...) \ |
405 | dev_printk(prefix, &(_cls_session)->dev, fmt, ##a) | |
406 | ||
407 | #define iscsi_cls_conn_printk(prefix, _cls_conn, fmt, a...) \ | |
408 | dev_printk(prefix, &(_cls_conn)->dev, fmt, ##a) | |
409 | ||
6eabafbe | 410 | extern int iscsi_session_chkready(struct iscsi_cls_session *session); |
17fa575e | 411 | extern int iscsi_is_session_online(struct iscsi_cls_session *session); |
8434aa8b | 412 | extern struct iscsi_cls_session *iscsi_alloc_session(struct Scsi_Host *shost, |
5d91e209 | 413 | struct iscsi_transport *transport, int dd_size); |
6a8a0d36 MC |
414 | extern int iscsi_add_session(struct iscsi_cls_session *session, |
415 | unsigned int target_id); | |
26974789 MC |
416 | extern int iscsi_session_event(struct iscsi_cls_session *session, |
417 | enum iscsi_uevent_e event); | |
7b8631b5 | 418 | extern struct iscsi_cls_session *iscsi_create_session(struct Scsi_Host *shost, |
6a8a0d36 | 419 | struct iscsi_transport *t, |
5d91e209 | 420 | int dd_size, |
6a8a0d36 | 421 | unsigned int target_id); |
8434aa8b MC |
422 | extern void iscsi_remove_session(struct iscsi_cls_session *session); |
423 | extern void iscsi_free_session(struct iscsi_cls_session *session); | |
7b8631b5 | 424 | extern struct iscsi_cls_conn *iscsi_create_conn(struct iscsi_cls_session *sess, |
5d91e209 | 425 | int dd_size, uint32_t cid); |
7b8631b5 | 426 | extern int iscsi_destroy_conn(struct iscsi_cls_conn *conn); |
30a6c652 MC |
427 | extern void iscsi_unblock_session(struct iscsi_cls_session *session); |
428 | extern void iscsi_block_session(struct iscsi_cls_session *session); | |
8aae18ad | 429 | extern int iscsi_scan_finished(struct Scsi_Host *shost, unsigned long time); |
d82ff9be MC |
430 | extern struct iscsi_endpoint *iscsi_create_endpoint(int dd_size); |
431 | extern void iscsi_destroy_endpoint(struct iscsi_endpoint *ep); | |
432 | extern struct iscsi_endpoint *iscsi_lookup_endpoint(u64 handle); | |
c01be6dc | 433 | extern int iscsi_block_scsi_eh(struct scsi_cmnd *cmd); |
8d07913d MC |
434 | extern struct iscsi_iface *iscsi_create_iface(struct Scsi_Host *shost, |
435 | struct iscsi_transport *t, | |
436 | uint32_t iface_type, | |
437 | uint32_t iface_num, int dd_size); | |
438 | extern void iscsi_destroy_iface(struct iscsi_iface *iface); | |
439 | extern struct iscsi_iface *iscsi_lookup_iface(int handle); | |
aeddde29 VC |
440 | extern char *iscsi_get_port_speed_name(struct Scsi_Host *shost); |
441 | extern char *iscsi_get_port_state_name(struct Scsi_Host *shost); | |
6260a5d2 | 442 | extern int iscsi_is_session_dev(const struct device *dev); |
53cb8a1f | 443 | |
c6a4bb2e AC |
444 | extern char *iscsi_get_discovery_parent_name(int parent_type); |
445 | extern struct device * | |
446 | iscsi_find_flashnode(struct Scsi_Host *shost, void *data, | |
447 | int (*fn)(struct device *dev, void *data)); | |
448 | ||
449 | extern struct iscsi_bus_flash_session * | |
450 | iscsi_create_flashnode_sess(struct Scsi_Host *shost, int index, | |
451 | struct iscsi_transport *transport, int dd_size); | |
452 | ||
453 | extern struct iscsi_bus_flash_conn * | |
454 | iscsi_create_flashnode_conn(struct Scsi_Host *shost, | |
455 | struct iscsi_bus_flash_session *fnode_sess, | |
456 | struct iscsi_transport *transport, int dd_size); | |
457 | ||
458 | extern void | |
459 | iscsi_destroy_flashnode_sess(struct iscsi_bus_flash_session *fnode_sess); | |
460 | ||
461 | extern void iscsi_destroy_all_flashnode(struct Scsi_Host *shost); | |
462 | extern int iscsi_flashnode_bus_match(struct device *dev, | |
463 | struct device_driver *drv); | |
c6a4bb2e AC |
464 | extern struct device * |
465 | iscsi_find_flashnode_sess(struct Scsi_Host *shost, void *data, | |
466 | int (*fn)(struct device *dev, void *data)); | |
c6a4bb2e | 467 | extern struct device * |
8526cb11 MC |
468 | iscsi_find_flashnode_conn(struct iscsi_bus_flash_session *fnode_sess); |
469 | ||
3e0f65b3 HZ |
470 | extern char * |
471 | iscsi_get_ipaddress_state_name(enum iscsi_ipaddress_state port_state); | |
472 | extern char *iscsi_get_router_state_name(enum iscsi_router_state router_state); | |
1da177e4 | 473 | #endif |