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 | |
e6b9489a | 60 | * 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); |
891e2639 | 85 | void (*unbind_conn) (struct iscsi_cls_conn *conn, bool is_active); |
7b7232f3 MC |
86 | int (*bind_conn) (struct iscsi_cls_session *session, |
87 | struct iscsi_cls_conn *cls_conn, | |
264faaaa | 88 | uint64_t transport_eph, int is_leading); |
7b7232f3 MC |
89 | int (*start_conn) (struct iscsi_cls_conn *conn); |
90 | void (*stop_conn) (struct iscsi_cls_conn *conn, int flag); | |
7b8631b5 | 91 | void (*destroy_conn) (struct iscsi_cls_conn *conn); |
7b7232f3 | 92 | int (*set_param) (struct iscsi_cls_conn *conn, enum iscsi_param param, |
a54a52ca | 93 | char *buf, int buflen); |
289324b0 MC |
94 | int (*get_ep_param) (struct iscsi_endpoint *ep, enum iscsi_param param, |
95 | char *buf); | |
7b7232f3 | 96 | int (*get_conn_param) (struct iscsi_cls_conn *conn, |
a54a52ca | 97 | enum iscsi_param param, char *buf); |
7b7232f3 | 98 | int (*get_session_param) (struct iscsi_cls_session *session, |
a54a52ca | 99 | enum iscsi_param param, char *buf); |
1819dc81 MC |
100 | int (*get_host_param) (struct Scsi_Host *shost, |
101 | enum iscsi_host_param param, char *buf); | |
1d9bf13a MC |
102 | int (*set_host_param) (struct Scsi_Host *shost, |
103 | enum iscsi_host_param param, char *buf, | |
104 | int buflen); | |
7b7232f3 | 105 | int (*send_pdu) (struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr, |
39e84790 | 106 | char *data, uint32_t data_size); |
7b7232f3 MC |
107 | void (*get_stats) (struct iscsi_cls_conn *conn, |
108 | struct iscsi_stats *stats); | |
577577da | 109 | |
9c19a7d0 MC |
110 | int (*init_task) (struct iscsi_task *task); |
111 | int (*xmit_task) (struct iscsi_task *task); | |
577577da MC |
112 | void (*cleanup_task) (struct iscsi_task *task); |
113 | ||
2ff79d52 | 114 | int (*alloc_pdu) (struct iscsi_task *task, uint8_t opcode); |
577577da MC |
115 | int (*xmit_pdu) (struct iscsi_task *task); |
116 | int (*init_pdu) (struct iscsi_task *task, unsigned int offset, | |
117 | unsigned int count); | |
262ef636 MC |
118 | void (*parse_pdu_itt) (struct iscsi_conn *conn, itt_t itt, |
119 | int *index, int *age); | |
120 | ||
30a6c652 | 121 | void (*session_recovery_timedout) (struct iscsi_cls_session *session); |
10eb0f01 MC |
122 | struct iscsi_endpoint *(*ep_connect) (struct Scsi_Host *shost, |
123 | struct sockaddr *dst_addr, | |
d82ff9be MC |
124 | int non_blocking); |
125 | int (*ep_poll) (struct iscsi_endpoint *ep, int timeout_ms); | |
126 | void (*ep_disconnect) (struct iscsi_endpoint *ep); | |
2174a04e | 127 | int (*tgt_dscvr) (struct Scsi_Host *shost, enum iscsi_tgt_dscvr type, |
01cb225d | 128 | uint32_t enable, struct sockaddr *dst_addr); |
43514774 | 129 | int (*set_path) (struct Scsi_Host *shost, struct iscsi_path *params); |
00c31889 MC |
130 | int (*set_iface_param) (struct Scsi_Host *shost, void *data, |
131 | uint32_t len); | |
8d07913d MC |
132 | int (*get_iface_param) (struct iscsi_iface *iface, |
133 | enum iscsi_param_type param_type, | |
134 | int param, char *buf); | |
587a1f16 | 135 | umode_t (*attr_is_visible)(int param_type, int param); |
90eeb01a | 136 | int (*bsg_request)(struct bsg_job *job); |
ac20c7bf VC |
137 | int (*send_ping) (struct Scsi_Host *shost, uint32_t iface_num, |
138 | uint32_t iface_type, uint32_t payload_size, | |
139 | uint32_t pid, struct sockaddr *dst_addr); | |
6260a5d2 NJ |
140 | int (*get_chap) (struct Scsi_Host *shost, uint16_t chap_tbl_idx, |
141 | uint32_t *num_entries, char *buf); | |
142 | int (*delete_chap) (struct Scsi_Host *shost, uint16_t chap_tbl_idx); | |
3af142fe | 143 | int (*set_chap) (struct Scsi_Host *shost, void *data, int len); |
c6a4bb2e AC |
144 | int (*get_flashnode_param) (struct iscsi_bus_flash_session *fnode_sess, |
145 | int param, char *buf); | |
146 | int (*set_flashnode_param) (struct iscsi_bus_flash_session *fnode_sess, | |
147 | struct iscsi_bus_flash_conn *fnode_conn, | |
148 | void *data, int len); | |
149 | int (*new_flashnode) (struct Scsi_Host *shost, const char *buf, | |
150 | int len); | |
151 | int (*del_flashnode) (struct iscsi_bus_flash_session *fnode_sess); | |
152 | int (*login_flashnode) (struct iscsi_bus_flash_session *fnode_sess, | |
153 | struct iscsi_bus_flash_conn *fnode_conn); | |
154 | int (*logout_flashnode) (struct iscsi_bus_flash_session *fnode_sess, | |
155 | struct iscsi_bus_flash_conn *fnode_conn); | |
156 | int (*logout_flashnode_sid) (struct iscsi_cls_session *cls_sess); | |
6fa7c554 | 157 | int (*get_host_stats) (struct Scsi_Host *shost, char *buf, int len); |
55e51eda | 158 | u8 (*check_protection)(struct iscsi_task *task, sector_t *sector); |
1da177e4 LT |
159 | }; |
160 | ||
161 | /* | |
39e84790 | 162 | * transport registration upcalls |
1da177e4 | 163 | */ |
7b8631b5 | 164 | extern struct scsi_transport_template *iscsi_register_transport(struct iscsi_transport *tt); |
6a33ed50 | 165 | extern void iscsi_unregister_transport(struct iscsi_transport *tt); |
1da177e4 LT |
166 | |
167 | /* | |
39e84790 | 168 | * control plane upcalls |
1da177e4 | 169 | */ |
e5bd7b54 MC |
170 | extern void iscsi_conn_error_event(struct iscsi_cls_conn *conn, |
171 | enum iscsi_err error); | |
17fa575e MR |
172 | extern void iscsi_conn_login_event(struct iscsi_cls_conn *conn, |
173 | enum iscsi_conn_state state); | |
7b7232f3 | 174 | extern int iscsi_recv_pdu(struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr, |
39e84790 | 175 | char *data, uint32_t data_size); |
1da177e4 | 176 | |
43514774 MC |
177 | extern int iscsi_offload_mesg(struct Scsi_Host *shost, |
178 | struct iscsi_transport *transport, uint32_t type, | |
179 | char *data, uint16_t data_size); | |
180 | ||
a11e2545 VC |
181 | extern void iscsi_post_host_event(uint32_t host_no, |
182 | struct iscsi_transport *transport, | |
183 | enum iscsi_host_event_code code, | |
184 | uint32_t data_size, | |
185 | uint8_t *data); | |
186 | ||
ac20c7bf VC |
187 | extern void iscsi_ping_comp_event(uint32_t host_no, |
188 | struct iscsi_transport *transport, | |
189 | uint32_t status, uint32_t pid, | |
190 | uint32_t data_size, uint8_t *data); | |
191 | ||
82b8cf40 GKB |
192 | /* iscsi class connection state */ |
193 | enum iscsi_connection_state { | |
194 | ISCSI_CONN_UP = 0, | |
195 | ISCSI_CONN_DOWN, | |
196 | ISCSI_CONN_FAILED, | |
9e67600e | 197 | ISCSI_CONN_BOUND, |
82b8cf40 GKB |
198 | }; |
199 | ||
23d6fefb MC |
200 | #define ISCSI_CLS_CONN_BIT_CLEANUP 1 |
201 | ||
7b8631b5 MC |
202 | struct iscsi_cls_conn { |
203 | struct list_head conn_list; /* item in connlist */ | |
204 | void *dd_data; /* LLD private data */ | |
205 | struct iscsi_transport *transport; | |
b5c7a12d | 206 | uint32_t cid; /* connection id */ |
23d6fefb MC |
207 | /* |
208 | * This protects the conn startup and binding/unbinding of the ep to | |
209 | * the conn. Unbinding includes ep_disconnect and stop_conn. | |
210 | */ | |
22a39fbb MC |
211 | struct mutex ep_mutex; |
212 | struct iscsi_endpoint *ep; | |
fd7255f5 | 213 | |
7c6e99c1 MC |
214 | /* Used when accessing flags and queueing work. */ |
215 | spinlock_t lock; | |
23d6fefb MC |
216 | unsigned long flags; |
217 | struct work_struct cleanup_work; | |
218 | ||
7b8631b5 | 219 | struct device dev; /* sysfs transport/container device */ |
82b8cf40 | 220 | enum iscsi_connection_state state; |
7b8631b5 MC |
221 | }; |
222 | ||
223 | #define iscsi_dev_to_conn(_dev) \ | |
224 | container_of(_dev, struct iscsi_cls_conn, dev) | |
225 | ||
3128c6c7 MC |
226 | #define transport_class_to_conn(_cdev) \ |
227 | iscsi_dev_to_conn(_cdev->parent) | |
228 | ||
6eabafbe MC |
229 | #define iscsi_conn_to_session(_conn) \ |
230 | iscsi_dev_to_session(_conn->dev.parent) | |
231 | ||
232 | /* iscsi class session state */ | |
233 | enum { | |
234 | ISCSI_SESSION_LOGGED_IN, | |
235 | ISCSI_SESSION_FAILED, | |
236 | ISCSI_SESSION_FREE, | |
237 | }; | |
7996a778 | 238 | |
a3be19b9 WH |
239 | enum { |
240 | ISCSI_SESSION_TARGET_UNBOUND, | |
241 | ISCSI_SESSION_TARGET_ALLOCATED, | |
242 | ISCSI_SESSION_TARGET_SCANNED, | |
243 | ISCSI_SESSION_TARGET_UNBINDING, | |
244 | ISCSI_SESSION_TARGET_MAX, | |
245 | }; | |
246 | ||
7970634b MC |
247 | #define ISCSI_MAX_TARGET -1 |
248 | ||
7b8631b5 | 249 | struct iscsi_cls_session { |
7b7232f3 | 250 | struct list_head sess_list; /* item in session_list */ |
7b8631b5 | 251 | struct iscsi_transport *transport; |
6eabafbe | 252 | spinlock_t lock; |
45ab33b6 MC |
253 | struct work_struct block_work; |
254 | struct work_struct unblock_work; | |
bd976f62 MC |
255 | struct work_struct scan_work; |
256 | struct work_struct unbind_work; | |
cc6b32ee | 257 | struct work_struct destroy_work; |
fd7255f5 | 258 | |
30a6c652 MC |
259 | /* recovery fields */ |
260 | int recovery_tmo; | |
9c8108a4 | 261 | bool recovery_tmo_sysfs_override; |
c4028958 | 262 | struct delayed_work recovery_work; |
30a6c652 | 263 | |
5842ea36 MC |
264 | struct workqueue_struct *workq; |
265 | ||
7970634b | 266 | unsigned int target_id; |
8d4a690c | 267 | bool ida_used; |
30a6c652 | 268 | |
0c70d84b MC |
269 | /* |
270 | * pid of userspace process that created session or -1 if | |
271 | * created by the kernel. | |
272 | */ | |
273 | pid_t creator; | |
6eabafbe | 274 | int state; |
a3be19b9 | 275 | int target_state; /* session target bind state */ |
b5c7a12d MC |
276 | int sid; /* session id */ |
277 | void *dd_data; /* LLD private data */ | |
7b8631b5 MC |
278 | struct device dev; /* sysfs transport/container device */ |
279 | }; | |
280 | ||
281 | #define iscsi_dev_to_session(_dev) \ | |
282 | container_of(_dev, struct iscsi_cls_session, dev) | |
283 | ||
1d063c17 MC |
284 | #define transport_class_to_session(_cdev) \ |
285 | iscsi_dev_to_session(_cdev->parent) | |
286 | ||
7b8631b5 MC |
287 | #define iscsi_session_to_shost(_session) \ |
288 | dev_to_shost(_session->dev.parent) | |
289 | ||
8434aa8b MC |
290 | #define starget_to_session(_stgt) \ |
291 | iscsi_dev_to_session(_stgt->dev.parent) | |
292 | ||
32c6e1b9 | 293 | struct iscsi_cls_host { |
30a6c652 | 294 | struct mutex mutex; |
90eeb01a | 295 | struct request_queue *bsg_q; |
aeddde29 VC |
296 | uint32_t port_speed; |
297 | uint32_t port_state; | |
30a6c652 MC |
298 | }; |
299 | ||
90eeb01a MC |
300 | #define iscsi_job_to_shost(_job) \ |
301 | dev_to_shost(_job->dev) | |
302 | ||
a4804cd6 MC |
303 | extern void iscsi_host_for_each_session(struct Scsi_Host *shost, |
304 | void (*fn)(struct iscsi_cls_session *)); | |
305 | ||
d82ff9be MC |
306 | struct iscsi_endpoint { |
307 | void *dd_data; /* LLD private data */ | |
308 | struct device dev; | |
3c6ae371 | 309 | int id; |
22a39fbb | 310 | struct iscsi_cls_conn *conn; |
d82ff9be | 311 | }; |
a4804cd6 | 312 | |
8d07913d MC |
313 | struct iscsi_iface { |
314 | struct device dev; | |
315 | struct iscsi_transport *transport; | |
316 | uint32_t iface_type; /* IPv4 or IPv6 */ | |
317 | uint32_t iface_num; /* iface number, 0 - n */ | |
318 | void *dd_data; /* LLD private data */ | |
319 | }; | |
320 | ||
321 | #define iscsi_dev_to_iface(_dev) \ | |
322 | container_of(_dev, struct iscsi_iface, dev) | |
323 | ||
324 | #define iscsi_iface_to_shost(_iface) \ | |
325 | dev_to_shost(_iface->dev.parent) | |
326 | ||
c6a4bb2e AC |
327 | |
328 | struct iscsi_bus_flash_conn { | |
329 | struct list_head conn_list; /* item in connlist */ | |
330 | void *dd_data; /* LLD private data */ | |
331 | struct iscsi_transport *transport; | |
332 | struct device dev; /* sysfs transport/container device */ | |
333 | /* iscsi connection parameters */ | |
334 | uint32_t exp_statsn; | |
335 | uint32_t statsn; | |
336 | unsigned max_recv_dlength; /* initiator_max_recv_dsl*/ | |
337 | unsigned max_xmit_dlength; /* target_max_recv_dsl */ | |
338 | unsigned max_segment_size; | |
339 | unsigned tcp_xmit_wsf; | |
340 | unsigned tcp_recv_wsf; | |
341 | int hdrdgst_en; | |
342 | int datadgst_en; | |
343 | int port; | |
344 | char *ipaddress; | |
345 | char *link_local_ipv6_addr; | |
346 | char *redirect_ipaddr; | |
347 | uint16_t keepalive_timeout; | |
348 | uint16_t local_port; | |
349 | uint8_t snack_req_en; | |
350 | /* tcp timestamp negotiation status */ | |
351 | uint8_t tcp_timestamp_stat; | |
352 | uint8_t tcp_nagle_disable; | |
353 | /* tcp window scale factor */ | |
354 | uint8_t tcp_wsf_disable; | |
355 | uint8_t tcp_timer_scale; | |
356 | uint8_t tcp_timestamp_en; | |
357 | uint8_t ipv4_tos; | |
358 | uint8_t ipv6_traffic_class; | |
359 | uint8_t ipv6_flow_label; | |
360 | uint8_t fragment_disable; | |
361 | /* Link local IPv6 address is assigned by firmware or driver */ | |
362 | uint8_t is_fw_assigned_ipv6; | |
363 | }; | |
364 | ||
365 | #define iscsi_dev_to_flash_conn(_dev) \ | |
366 | container_of(_dev, struct iscsi_bus_flash_conn, dev) | |
367 | ||
368 | #define iscsi_flash_conn_to_flash_session(_conn) \ | |
369 | iscsi_dev_to_flash_session(_conn->dev.parent) | |
370 | ||
371 | #define ISID_SIZE 6 | |
372 | ||
373 | struct iscsi_bus_flash_session { | |
374 | struct list_head sess_list; /* item in session_list */ | |
375 | struct iscsi_transport *transport; | |
376 | unsigned int target_id; | |
377 | int flash_state; /* persistent or non-persistent */ | |
378 | void *dd_data; /* LLD private data */ | |
379 | struct device dev; /* sysfs transport/container device */ | |
380 | /* iscsi session parameters */ | |
381 | unsigned first_burst; | |
382 | unsigned max_burst; | |
383 | unsigned short max_r2t; | |
384 | int default_taskmgmt_timeout; | |
385 | int initial_r2t_en; | |
386 | int imm_data_en; | |
387 | int time2wait; | |
388 | int time2retain; | |
389 | int pdu_inorder_en; | |
390 | int dataseq_inorder_en; | |
391 | int erl; | |
392 | int tpgt; | |
393 | char *username; | |
394 | char *username_in; | |
395 | char *password; | |
396 | char *password_in; | |
397 | char *targetname; | |
398 | char *targetalias; | |
399 | char *portal_type; | |
400 | uint16_t tsid; | |
401 | uint16_t chap_in_idx; | |
402 | uint16_t chap_out_idx; | |
403 | /* index of iSCSI discovery session if the entry is | |
404 | * discovered by iSCSI discovery session | |
405 | */ | |
406 | uint16_t discovery_parent_idx; | |
407 | /* indicates if discovery was done through iSNS discovery service | |
408 | * or through sendTarget */ | |
409 | uint16_t discovery_parent_type; | |
410 | /* Firmware auto sendtarget discovery disable */ | |
411 | uint8_t auto_snd_tgt_disable; | |
412 | uint8_t discovery_sess; | |
413 | /* indicates if this flashnode entry is enabled or disabled */ | |
414 | uint8_t entry_state; | |
415 | uint8_t chap_auth_en; | |
416 | /* enables firmware to auto logout the discovery session on discovery | |
417 | * completion | |
418 | */ | |
419 | uint8_t discovery_logout_en; | |
420 | uint8_t bidi_chap_en; | |
421 | /* makes authentication for discovery session optional */ | |
422 | uint8_t discovery_auth_optional; | |
423 | uint8_t isid[ISID_SIZE]; | |
424 | uint8_t is_boot_target; | |
425 | }; | |
426 | ||
427 | #define iscsi_dev_to_flash_session(_dev) \ | |
428 | container_of(_dev, struct iscsi_bus_flash_session, dev) | |
429 | ||
430 | #define iscsi_flash_session_to_shost(_session) \ | |
431 | dev_to_shost(_session->dev.parent) | |
432 | ||
7b8631b5 MC |
433 | /* |
434 | * session and connection functions that can be used by HW iSCSI LLDs | |
435 | */ | |
322d739d MC |
436 | #define iscsi_cls_session_printk(prefix, _cls_session, fmt, a...) \ |
437 | dev_printk(prefix, &(_cls_session)->dev, fmt, ##a) | |
438 | ||
439 | #define iscsi_cls_conn_printk(prefix, _cls_conn, fmt, a...) \ | |
440 | dev_printk(prefix, &(_cls_conn)->dev, fmt, ##a) | |
441 | ||
6eabafbe | 442 | extern int iscsi_session_chkready(struct iscsi_cls_session *session); |
17fa575e | 443 | extern int iscsi_is_session_online(struct iscsi_cls_session *session); |
8434aa8b | 444 | extern struct iscsi_cls_session *iscsi_alloc_session(struct Scsi_Host *shost, |
5d91e209 | 445 | struct iscsi_transport *transport, int dd_size); |
6a8a0d36 MC |
446 | extern int iscsi_add_session(struct iscsi_cls_session *session, |
447 | unsigned int target_id); | |
26974789 MC |
448 | extern int iscsi_session_event(struct iscsi_cls_session *session, |
449 | enum iscsi_uevent_e event); | |
7b8631b5 | 450 | extern struct iscsi_cls_session *iscsi_create_session(struct Scsi_Host *shost, |
6a8a0d36 | 451 | struct iscsi_transport *t, |
5d91e209 | 452 | int dd_size, |
6a8a0d36 | 453 | unsigned int target_id); |
bb42856b | 454 | extern void iscsi_force_destroy_session(struct iscsi_cls_session *session); |
8434aa8b MC |
455 | extern void iscsi_remove_session(struct iscsi_cls_session *session); |
456 | extern void iscsi_free_session(struct iscsi_cls_session *session); | |
ad515cad WH |
457 | extern struct iscsi_cls_conn *iscsi_alloc_conn(struct iscsi_cls_session *sess, |
458 | int dd_size, uint32_t cid); | |
459 | extern int iscsi_add_conn(struct iscsi_cls_conn *conn); | |
460 | extern void iscsi_remove_conn(struct iscsi_cls_conn *conn); | |
b1d19e8c MC |
461 | extern void iscsi_put_conn(struct iscsi_cls_conn *conn); |
462 | extern void iscsi_get_conn(struct iscsi_cls_conn *conn); | |
30a6c652 MC |
463 | extern void iscsi_unblock_session(struct iscsi_cls_session *session); |
464 | extern void iscsi_block_session(struct iscsi_cls_session *session); | |
d82ff9be MC |
465 | extern struct iscsi_endpoint *iscsi_create_endpoint(int dd_size); |
466 | extern void iscsi_destroy_endpoint(struct iscsi_endpoint *ep); | |
467 | extern struct iscsi_endpoint *iscsi_lookup_endpoint(u64 handle); | |
9e5fe170 | 468 | extern void iscsi_put_endpoint(struct iscsi_endpoint *ep); |
c01be6dc | 469 | extern int iscsi_block_scsi_eh(struct scsi_cmnd *cmd); |
8d07913d MC |
470 | extern struct iscsi_iface *iscsi_create_iface(struct Scsi_Host *shost, |
471 | struct iscsi_transport *t, | |
472 | uint32_t iface_type, | |
473 | uint32_t iface_num, int dd_size); | |
474 | extern void iscsi_destroy_iface(struct iscsi_iface *iface); | |
475 | extern struct iscsi_iface *iscsi_lookup_iface(int handle); | |
aeddde29 VC |
476 | extern char *iscsi_get_port_speed_name(struct Scsi_Host *shost); |
477 | extern char *iscsi_get_port_state_name(struct Scsi_Host *shost); | |
6260a5d2 | 478 | extern int iscsi_is_session_dev(const struct device *dev); |
53cb8a1f | 479 | |
c6a4bb2e AC |
480 | extern char *iscsi_get_discovery_parent_name(int parent_type); |
481 | extern struct device * | |
482 | iscsi_find_flashnode(struct Scsi_Host *shost, void *data, | |
483 | int (*fn)(struct device *dev, void *data)); | |
484 | ||
485 | extern struct iscsi_bus_flash_session * | |
486 | iscsi_create_flashnode_sess(struct Scsi_Host *shost, int index, | |
487 | struct iscsi_transport *transport, int dd_size); | |
488 | ||
489 | extern struct iscsi_bus_flash_conn * | |
490 | iscsi_create_flashnode_conn(struct Scsi_Host *shost, | |
491 | struct iscsi_bus_flash_session *fnode_sess, | |
492 | struct iscsi_transport *transport, int dd_size); | |
493 | ||
494 | extern void | |
495 | iscsi_destroy_flashnode_sess(struct iscsi_bus_flash_session *fnode_sess); | |
496 | ||
497 | extern void iscsi_destroy_all_flashnode(struct Scsi_Host *shost); | |
498 | extern int iscsi_flashnode_bus_match(struct device *dev, | |
499 | struct device_driver *drv); | |
c6a4bb2e AC |
500 | extern struct device * |
501 | iscsi_find_flashnode_sess(struct Scsi_Host *shost, void *data, | |
502 | int (*fn)(struct device *dev, void *data)); | |
c6a4bb2e | 503 | extern struct device * |
8526cb11 MC |
504 | iscsi_find_flashnode_conn(struct iscsi_bus_flash_session *fnode_sess); |
505 | ||
3e0f65b3 HZ |
506 | extern char * |
507 | iscsi_get_ipaddress_state_name(enum iscsi_ipaddress_state port_state); | |
508 | extern char *iscsi_get_router_state_name(enum iscsi_router_state router_state); | |
1da177e4 | 509 | #endif |