Commit | Line | Data |
---|---|---|
39e84790 | 1 | /* |
1da177e4 LT |
2 | * iSCSI transport class definitions |
3 | * | |
4 | * Copyright (C) IBM Corporation, 2004 | |
7996a778 | 5 | * Copyright (C) Mike Christie, 2004 - 2006 |
39e84790 AA |
6 | * Copyright (C) Dmitry Yusupov, 2004 - 2005 |
7 | * Copyright (C) Alex Aizman, 2004 - 2005 | |
1da177e4 LT |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
22 | */ | |
23 | #ifndef SCSI_TRANSPORT_ISCSI_H | |
24 | #define SCSI_TRANSPORT_ISCSI_H | |
25 | ||
7b8631b5 | 26 | #include <linux/device.h> |
d773c082 MT |
27 | #include <linux/list.h> |
28 | #include <linux/mutex.h> | |
39e84790 | 29 | #include <scsi/iscsi_if.h> |
1da177e4 | 30 | |
7b8631b5 | 31 | struct scsi_transport_template; |
7996a778 | 32 | struct iscsi_transport; |
d82ff9be | 33 | struct iscsi_endpoint; |
7b8631b5 | 34 | struct Scsi_Host; |
c01be6dc | 35 | struct scsi_cmnd; |
7b8631b5 | 36 | struct iscsi_cls_conn; |
7996a778 | 37 | struct iscsi_conn; |
9c19a7d0 | 38 | struct iscsi_task; |
a54a52ca | 39 | struct sockaddr; |
8d07913d | 40 | struct iscsi_iface; |
90eeb01a | 41 | struct bsg_job; |
c6a4bb2e AC |
42 | struct iscsi_bus_flash_session; |
43 | struct iscsi_bus_flash_conn; | |
7b8631b5 | 44 | |
39e84790 AA |
45 | /** |
46 | * struct iscsi_transport - iSCSI Transport template | |
47 | * | |
48 | * @name: transport name | |
49 | * @caps: iSCSI Data-Path capabilities | |
50 | * @create_session: create new iSCSI session object | |
51 | * @destroy_session: destroy existing iSCSI session object | |
52 | * @create_conn: create new iSCSI connection | |
53 | * @bind_conn: associate this connection with existing iSCSI session | |
54 | * and specified transport descriptor | |
55 | * @destroy_conn: destroy inactive iSCSI connection | |
a54a52ca MC |
56 | * @set_param: set iSCSI parameter. Return 0 on success, -ENODATA |
57 | * when param is not supported, and a -Exx value on other | |
58 | * error. | |
59 | * @get_param get iSCSI parameter. Must return number of bytes | |
60 | * copied to buffer on success, -ENODATA when param | |
61 | * is not supported, and a -Exx value on other error | |
39e84790 AA |
62 | * @start_conn: set connection to be operational |
63 | * @stop_conn: suspend/recover/terminate connection | |
64 | * @send_pdu: send iSCSI PDU, Login, Logout, NOP-Out, Reject, Text. | |
7996a778 | 65 | * @session_recovery_timedout: notify LLD a block during recovery timed out |
3e5c28ad MC |
66 | * @init_task: Initialize a iscsi_task and any internal structs. |
67 | * When offloading the data path, this is called from | |
68 | * queuecommand with the session lock, or from the | |
69 | * iscsi_conn_send_pdu context with the session lock. | |
70 | * When not offloading the data path, this is called | |
71 | * from the scsi work queue without the session lock. | |
72 | * @xmit_task Requests LLD to transfer cmd task. Returns 0 or the | |
3219e529 | 73 | * the number of bytes transferred on success, and -Exyz |
3e5c28ad MC |
74 | * value on error. When offloading the data path, this |
75 | * is called from queuecommand with the session lock, or | |
76 | * from the iscsi_conn_send_pdu context with the session | |
77 | * lock. When not offloading the data path, this is called | |
78 | * from the scsi work queue without the session lock. | |
79 | * @cleanup_task: requests LLD to fail task. Called with session lock | |
80 | * and after the connection has been suspended and | |
81 | * terminated during recovery. If called | |
7996a778 MC |
82 | * from abort task then connection is not suspended |
83 | * or terminated but sk_callback_lock is held | |
39e84790 AA |
84 | * |
85 | * Template API provided by iSCSI Transport | |
86 | */ | |
87 | struct iscsi_transport { | |
88 | struct module *owner; | |
89 | char *name; | |
90 | unsigned int caps; | |
8d07913d | 91 | |
d82ff9be | 92 | struct iscsi_cls_session *(*create_session) (struct iscsi_endpoint *ep, |
75613521 | 93 | uint16_t cmds_max, uint16_t qdepth, |
5e7facb7 | 94 | uint32_t sn); |
7b7232f3 MC |
95 | void (*destroy_session) (struct iscsi_cls_session *session); |
96 | struct iscsi_cls_conn *(*create_conn) (struct iscsi_cls_session *sess, | |
7b8631b5 | 97 | uint32_t cid); |
7b7232f3 MC |
98 | int (*bind_conn) (struct iscsi_cls_session *session, |
99 | struct iscsi_cls_conn *cls_conn, | |
264faaaa | 100 | uint64_t transport_eph, int is_leading); |
7b7232f3 MC |
101 | int (*start_conn) (struct iscsi_cls_conn *conn); |
102 | void (*stop_conn) (struct iscsi_cls_conn *conn, int flag); | |
7b8631b5 | 103 | void (*destroy_conn) (struct iscsi_cls_conn *conn); |
7b7232f3 | 104 | int (*set_param) (struct iscsi_cls_conn *conn, enum iscsi_param param, |
a54a52ca | 105 | char *buf, int buflen); |
289324b0 MC |
106 | int (*get_ep_param) (struct iscsi_endpoint *ep, enum iscsi_param param, |
107 | char *buf); | |
7b7232f3 | 108 | int (*get_conn_param) (struct iscsi_cls_conn *conn, |
a54a52ca | 109 | enum iscsi_param param, char *buf); |
7b7232f3 | 110 | int (*get_session_param) (struct iscsi_cls_session *session, |
a54a52ca | 111 | enum iscsi_param param, char *buf); |
1819dc81 MC |
112 | int (*get_host_param) (struct Scsi_Host *shost, |
113 | enum iscsi_host_param param, char *buf); | |
1d9bf13a MC |
114 | int (*set_host_param) (struct Scsi_Host *shost, |
115 | enum iscsi_host_param param, char *buf, | |
116 | int buflen); | |
7b7232f3 | 117 | int (*send_pdu) (struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr, |
39e84790 | 118 | char *data, uint32_t data_size); |
7b7232f3 MC |
119 | void (*get_stats) (struct iscsi_cls_conn *conn, |
120 | struct iscsi_stats *stats); | |
577577da | 121 | |
9c19a7d0 MC |
122 | int (*init_task) (struct iscsi_task *task); |
123 | int (*xmit_task) (struct iscsi_task *task); | |
577577da MC |
124 | void (*cleanup_task) (struct iscsi_task *task); |
125 | ||
2ff79d52 | 126 | int (*alloc_pdu) (struct iscsi_task *task, uint8_t opcode); |
577577da MC |
127 | int (*xmit_pdu) (struct iscsi_task *task); |
128 | int (*init_pdu) (struct iscsi_task *task, unsigned int offset, | |
129 | unsigned int count); | |
262ef636 MC |
130 | void (*parse_pdu_itt) (struct iscsi_conn *conn, itt_t itt, |
131 | int *index, int *age); | |
132 | ||
30a6c652 | 133 | void (*session_recovery_timedout) (struct iscsi_cls_session *session); |
10eb0f01 MC |
134 | struct iscsi_endpoint *(*ep_connect) (struct Scsi_Host *shost, |
135 | struct sockaddr *dst_addr, | |
d82ff9be MC |
136 | int non_blocking); |
137 | int (*ep_poll) (struct iscsi_endpoint *ep, int timeout_ms); | |
138 | void (*ep_disconnect) (struct iscsi_endpoint *ep); | |
2174a04e | 139 | int (*tgt_dscvr) (struct Scsi_Host *shost, enum iscsi_tgt_dscvr type, |
01cb225d | 140 | uint32_t enable, struct sockaddr *dst_addr); |
43514774 | 141 | int (*set_path) (struct Scsi_Host *shost, struct iscsi_path *params); |
00c31889 MC |
142 | int (*set_iface_param) (struct Scsi_Host *shost, void *data, |
143 | uint32_t len); | |
8d07913d MC |
144 | int (*get_iface_param) (struct iscsi_iface *iface, |
145 | enum iscsi_param_type param_type, | |
146 | int param, char *buf); | |
587a1f16 | 147 | umode_t (*attr_is_visible)(int param_type, int param); |
90eeb01a | 148 | int (*bsg_request)(struct bsg_job *job); |
ac20c7bf VC |
149 | int (*send_ping) (struct Scsi_Host *shost, uint32_t iface_num, |
150 | uint32_t iface_type, uint32_t payload_size, | |
151 | uint32_t pid, struct sockaddr *dst_addr); | |
6260a5d2 NJ |
152 | int (*get_chap) (struct Scsi_Host *shost, uint16_t chap_tbl_idx, |
153 | uint32_t *num_entries, char *buf); | |
154 | int (*delete_chap) (struct Scsi_Host *shost, uint16_t chap_tbl_idx); | |
3af142fe | 155 | int (*set_chap) (struct Scsi_Host *shost, void *data, int len); |
c6a4bb2e AC |
156 | int (*get_flashnode_param) (struct iscsi_bus_flash_session *fnode_sess, |
157 | int param, char *buf); | |
158 | int (*set_flashnode_param) (struct iscsi_bus_flash_session *fnode_sess, | |
159 | struct iscsi_bus_flash_conn *fnode_conn, | |
160 | void *data, int len); | |
161 | int (*new_flashnode) (struct Scsi_Host *shost, const char *buf, | |
162 | int len); | |
163 | int (*del_flashnode) (struct iscsi_bus_flash_session *fnode_sess); | |
164 | int (*login_flashnode) (struct iscsi_bus_flash_session *fnode_sess, | |
165 | struct iscsi_bus_flash_conn *fnode_conn); | |
166 | int (*logout_flashnode) (struct iscsi_bus_flash_session *fnode_sess, | |
167 | struct iscsi_bus_flash_conn *fnode_conn); | |
168 | int (*logout_flashnode_sid) (struct iscsi_cls_session *cls_sess); | |
6fa7c554 | 169 | int (*get_host_stats) (struct Scsi_Host *shost, char *buf, int len); |
55e51eda | 170 | u8 (*check_protection)(struct iscsi_task *task, sector_t *sector); |
1da177e4 LT |
171 | }; |
172 | ||
173 | /* | |
39e84790 | 174 | * transport registration upcalls |
1da177e4 | 175 | */ |
7b8631b5 | 176 | extern struct scsi_transport_template *iscsi_register_transport(struct iscsi_transport *tt); |
39e84790 | 177 | extern int iscsi_unregister_transport(struct iscsi_transport *tt); |
1da177e4 LT |
178 | |
179 | /* | |
39e84790 | 180 | * control plane upcalls |
1da177e4 | 181 | */ |
e5bd7b54 MC |
182 | extern void iscsi_conn_error_event(struct iscsi_cls_conn *conn, |
183 | enum iscsi_err error); | |
17fa575e MR |
184 | extern void iscsi_conn_login_event(struct iscsi_cls_conn *conn, |
185 | enum iscsi_conn_state state); | |
7b7232f3 | 186 | extern int iscsi_recv_pdu(struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr, |
39e84790 | 187 | char *data, uint32_t data_size); |
1da177e4 | 188 | |
43514774 MC |
189 | extern int iscsi_offload_mesg(struct Scsi_Host *shost, |
190 | struct iscsi_transport *transport, uint32_t type, | |
191 | char *data, uint16_t data_size); | |
192 | ||
a11e2545 VC |
193 | extern void iscsi_post_host_event(uint32_t host_no, |
194 | struct iscsi_transport *transport, | |
195 | enum iscsi_host_event_code code, | |
196 | uint32_t data_size, | |
197 | uint8_t *data); | |
198 | ||
ac20c7bf VC |
199 | extern void iscsi_ping_comp_event(uint32_t host_no, |
200 | struct iscsi_transport *transport, | |
201 | uint32_t status, uint32_t pid, | |
202 | uint32_t data_size, uint8_t *data); | |
203 | ||
7b8631b5 MC |
204 | struct iscsi_cls_conn { |
205 | struct list_head conn_list; /* item in connlist */ | |
206 | void *dd_data; /* LLD private data */ | |
207 | struct iscsi_transport *transport; | |
b5c7a12d | 208 | uint32_t cid; /* connection id */ |
22a39fbb MC |
209 | struct mutex ep_mutex; |
210 | struct iscsi_endpoint *ep; | |
fd7255f5 | 211 | |
7b8631b5 | 212 | struct device dev; /* sysfs transport/container device */ |
7b8631b5 MC |
213 | }; |
214 | ||
215 | #define iscsi_dev_to_conn(_dev) \ | |
216 | container_of(_dev, struct iscsi_cls_conn, dev) | |
217 | ||
3128c6c7 MC |
218 | #define transport_class_to_conn(_cdev) \ |
219 | iscsi_dev_to_conn(_cdev->parent) | |
220 | ||
6eabafbe MC |
221 | #define iscsi_conn_to_session(_conn) \ |
222 | iscsi_dev_to_session(_conn->dev.parent) | |
223 | ||
224 | /* iscsi class session state */ | |
225 | enum { | |
226 | ISCSI_SESSION_LOGGED_IN, | |
227 | ISCSI_SESSION_FAILED, | |
228 | ISCSI_SESSION_FREE, | |
229 | }; | |
7996a778 | 230 | |
7970634b MC |
231 | #define ISCSI_MAX_TARGET -1 |
232 | ||
7b8631b5 | 233 | struct iscsi_cls_session { |
7b7232f3 | 234 | struct list_head sess_list; /* item in session_list */ |
7b8631b5 | 235 | struct iscsi_transport *transport; |
6eabafbe | 236 | spinlock_t lock; |
45ab33b6 MC |
237 | struct work_struct block_work; |
238 | struct work_struct unblock_work; | |
bd976f62 MC |
239 | struct work_struct scan_work; |
240 | struct work_struct unbind_work; | |
fd7255f5 | 241 | |
30a6c652 MC |
242 | /* recovery fields */ |
243 | int recovery_tmo; | |
9c8108a4 | 244 | bool recovery_tmo_sysfs_override; |
c4028958 | 245 | struct delayed_work recovery_work; |
30a6c652 | 246 | |
7970634b | 247 | unsigned int target_id; |
8d4a690c | 248 | bool ida_used; |
30a6c652 | 249 | |
0c70d84b MC |
250 | /* |
251 | * pid of userspace process that created session or -1 if | |
252 | * created by the kernel. | |
253 | */ | |
254 | pid_t creator; | |
6eabafbe | 255 | int state; |
b5c7a12d MC |
256 | int sid; /* session id */ |
257 | void *dd_data; /* LLD private data */ | |
7b8631b5 MC |
258 | struct device dev; /* sysfs transport/container device */ |
259 | }; | |
260 | ||
261 | #define iscsi_dev_to_session(_dev) \ | |
262 | container_of(_dev, struct iscsi_cls_session, dev) | |
263 | ||
1d063c17 MC |
264 | #define transport_class_to_session(_cdev) \ |
265 | iscsi_dev_to_session(_cdev->parent) | |
266 | ||
7b8631b5 MC |
267 | #define iscsi_session_to_shost(_session) \ |
268 | dev_to_shost(_session->dev.parent) | |
269 | ||
8434aa8b MC |
270 | #define starget_to_session(_stgt) \ |
271 | iscsi_dev_to_session(_stgt->dev.parent) | |
272 | ||
32c6e1b9 | 273 | struct iscsi_cls_host { |
8aae18ad | 274 | atomic_t nr_scans; |
30a6c652 | 275 | struct mutex mutex; |
90eeb01a | 276 | struct request_queue *bsg_q; |
aeddde29 VC |
277 | uint32_t port_speed; |
278 | uint32_t port_state; | |
30a6c652 MC |
279 | }; |
280 | ||
90eeb01a MC |
281 | #define iscsi_job_to_shost(_job) \ |
282 | dev_to_shost(_job->dev) | |
283 | ||
a4804cd6 MC |
284 | extern void iscsi_host_for_each_session(struct Scsi_Host *shost, |
285 | void (*fn)(struct iscsi_cls_session *)); | |
286 | ||
d82ff9be MC |
287 | struct iscsi_endpoint { |
288 | void *dd_data; /* LLD private data */ | |
289 | struct device dev; | |
21536062 | 290 | uint64_t id; |
22a39fbb | 291 | struct iscsi_cls_conn *conn; |
d82ff9be | 292 | }; |
a4804cd6 | 293 | |
8d07913d MC |
294 | struct iscsi_iface { |
295 | struct device dev; | |
296 | struct iscsi_transport *transport; | |
297 | uint32_t iface_type; /* IPv4 or IPv6 */ | |
298 | uint32_t iface_num; /* iface number, 0 - n */ | |
299 | void *dd_data; /* LLD private data */ | |
300 | }; | |
301 | ||
302 | #define iscsi_dev_to_iface(_dev) \ | |
303 | container_of(_dev, struct iscsi_iface, dev) | |
304 | ||
305 | #define iscsi_iface_to_shost(_iface) \ | |
306 | dev_to_shost(_iface->dev.parent) | |
307 | ||
c6a4bb2e AC |
308 | |
309 | struct iscsi_bus_flash_conn { | |
310 | struct list_head conn_list; /* item in connlist */ | |
311 | void *dd_data; /* LLD private data */ | |
312 | struct iscsi_transport *transport; | |
313 | struct device dev; /* sysfs transport/container device */ | |
314 | /* iscsi connection parameters */ | |
315 | uint32_t exp_statsn; | |
316 | uint32_t statsn; | |
317 | unsigned max_recv_dlength; /* initiator_max_recv_dsl*/ | |
318 | unsigned max_xmit_dlength; /* target_max_recv_dsl */ | |
319 | unsigned max_segment_size; | |
320 | unsigned tcp_xmit_wsf; | |
321 | unsigned tcp_recv_wsf; | |
322 | int hdrdgst_en; | |
323 | int datadgst_en; | |
324 | int port; | |
325 | char *ipaddress; | |
326 | char *link_local_ipv6_addr; | |
327 | char *redirect_ipaddr; | |
328 | uint16_t keepalive_timeout; | |
329 | uint16_t local_port; | |
330 | uint8_t snack_req_en; | |
331 | /* tcp timestamp negotiation status */ | |
332 | uint8_t tcp_timestamp_stat; | |
333 | uint8_t tcp_nagle_disable; | |
334 | /* tcp window scale factor */ | |
335 | uint8_t tcp_wsf_disable; | |
336 | uint8_t tcp_timer_scale; | |
337 | uint8_t tcp_timestamp_en; | |
338 | uint8_t ipv4_tos; | |
339 | uint8_t ipv6_traffic_class; | |
340 | uint8_t ipv6_flow_label; | |
341 | uint8_t fragment_disable; | |
342 | /* Link local IPv6 address is assigned by firmware or driver */ | |
343 | uint8_t is_fw_assigned_ipv6; | |
344 | }; | |
345 | ||
346 | #define iscsi_dev_to_flash_conn(_dev) \ | |
347 | container_of(_dev, struct iscsi_bus_flash_conn, dev) | |
348 | ||
349 | #define iscsi_flash_conn_to_flash_session(_conn) \ | |
350 | iscsi_dev_to_flash_session(_conn->dev.parent) | |
351 | ||
352 | #define ISID_SIZE 6 | |
353 | ||
354 | struct iscsi_bus_flash_session { | |
355 | struct list_head sess_list; /* item in session_list */ | |
356 | struct iscsi_transport *transport; | |
357 | unsigned int target_id; | |
358 | int flash_state; /* persistent or non-persistent */ | |
359 | void *dd_data; /* LLD private data */ | |
360 | struct device dev; /* sysfs transport/container device */ | |
361 | /* iscsi session parameters */ | |
362 | unsigned first_burst; | |
363 | unsigned max_burst; | |
364 | unsigned short max_r2t; | |
365 | int default_taskmgmt_timeout; | |
366 | int initial_r2t_en; | |
367 | int imm_data_en; | |
368 | int time2wait; | |
369 | int time2retain; | |
370 | int pdu_inorder_en; | |
371 | int dataseq_inorder_en; | |
372 | int erl; | |
373 | int tpgt; | |
374 | char *username; | |
375 | char *username_in; | |
376 | char *password; | |
377 | char *password_in; | |
378 | char *targetname; | |
379 | char *targetalias; | |
380 | char *portal_type; | |
381 | uint16_t tsid; | |
382 | uint16_t chap_in_idx; | |
383 | uint16_t chap_out_idx; | |
384 | /* index of iSCSI discovery session if the entry is | |
385 | * discovered by iSCSI discovery session | |
386 | */ | |
387 | uint16_t discovery_parent_idx; | |
388 | /* indicates if discovery was done through iSNS discovery service | |
389 | * or through sendTarget */ | |
390 | uint16_t discovery_parent_type; | |
391 | /* Firmware auto sendtarget discovery disable */ | |
392 | uint8_t auto_snd_tgt_disable; | |
393 | uint8_t discovery_sess; | |
394 | /* indicates if this flashnode entry is enabled or disabled */ | |
395 | uint8_t entry_state; | |
396 | uint8_t chap_auth_en; | |
397 | /* enables firmware to auto logout the discovery session on discovery | |
398 | * completion | |
399 | */ | |
400 | uint8_t discovery_logout_en; | |
401 | uint8_t bidi_chap_en; | |
402 | /* makes authentication for discovery session optional */ | |
403 | uint8_t discovery_auth_optional; | |
404 | uint8_t isid[ISID_SIZE]; | |
405 | uint8_t is_boot_target; | |
406 | }; | |
407 | ||
408 | #define iscsi_dev_to_flash_session(_dev) \ | |
409 | container_of(_dev, struct iscsi_bus_flash_session, dev) | |
410 | ||
411 | #define iscsi_flash_session_to_shost(_session) \ | |
412 | dev_to_shost(_session->dev.parent) | |
413 | ||
7b8631b5 MC |
414 | /* |
415 | * session and connection functions that can be used by HW iSCSI LLDs | |
416 | */ | |
322d739d MC |
417 | #define iscsi_cls_session_printk(prefix, _cls_session, fmt, a...) \ |
418 | dev_printk(prefix, &(_cls_session)->dev, fmt, ##a) | |
419 | ||
420 | #define iscsi_cls_conn_printk(prefix, _cls_conn, fmt, a...) \ | |
421 | dev_printk(prefix, &(_cls_conn)->dev, fmt, ##a) | |
422 | ||
6eabafbe | 423 | extern int iscsi_session_chkready(struct iscsi_cls_session *session); |
17fa575e | 424 | extern int iscsi_is_session_online(struct iscsi_cls_session *session); |
8434aa8b | 425 | extern struct iscsi_cls_session *iscsi_alloc_session(struct Scsi_Host *shost, |
5d91e209 | 426 | struct iscsi_transport *transport, int dd_size); |
6a8a0d36 MC |
427 | extern int iscsi_add_session(struct iscsi_cls_session *session, |
428 | unsigned int target_id); | |
26974789 MC |
429 | extern int iscsi_session_event(struct iscsi_cls_session *session, |
430 | enum iscsi_uevent_e event); | |
7b8631b5 | 431 | extern struct iscsi_cls_session *iscsi_create_session(struct Scsi_Host *shost, |
6a8a0d36 | 432 | struct iscsi_transport *t, |
5d91e209 | 433 | int dd_size, |
6a8a0d36 | 434 | unsigned int target_id); |
8434aa8b MC |
435 | extern void iscsi_remove_session(struct iscsi_cls_session *session); |
436 | extern void iscsi_free_session(struct iscsi_cls_session *session); | |
7b8631b5 MC |
437 | extern int iscsi_destroy_session(struct iscsi_cls_session *session); |
438 | extern struct iscsi_cls_conn *iscsi_create_conn(struct iscsi_cls_session *sess, | |
5d91e209 | 439 | int dd_size, uint32_t cid); |
7b8631b5 | 440 | extern int iscsi_destroy_conn(struct iscsi_cls_conn *conn); |
30a6c652 MC |
441 | extern void iscsi_unblock_session(struct iscsi_cls_session *session); |
442 | extern void iscsi_block_session(struct iscsi_cls_session *session); | |
8aae18ad | 443 | extern int iscsi_scan_finished(struct Scsi_Host *shost, unsigned long time); |
d82ff9be MC |
444 | extern struct iscsi_endpoint *iscsi_create_endpoint(int dd_size); |
445 | extern void iscsi_destroy_endpoint(struct iscsi_endpoint *ep); | |
446 | extern struct iscsi_endpoint *iscsi_lookup_endpoint(u64 handle); | |
c01be6dc | 447 | extern int iscsi_block_scsi_eh(struct scsi_cmnd *cmd); |
8d07913d MC |
448 | extern struct iscsi_iface *iscsi_create_iface(struct Scsi_Host *shost, |
449 | struct iscsi_transport *t, | |
450 | uint32_t iface_type, | |
451 | uint32_t iface_num, int dd_size); | |
452 | extern void iscsi_destroy_iface(struct iscsi_iface *iface); | |
453 | extern struct iscsi_iface *iscsi_lookup_iface(int handle); | |
aeddde29 VC |
454 | extern char *iscsi_get_port_speed_name(struct Scsi_Host *shost); |
455 | extern char *iscsi_get_port_state_name(struct Scsi_Host *shost); | |
6260a5d2 | 456 | extern int iscsi_is_session_dev(const struct device *dev); |
53cb8a1f | 457 | |
c6a4bb2e AC |
458 | extern char *iscsi_get_discovery_parent_name(int parent_type); |
459 | extern struct device * | |
460 | iscsi_find_flashnode(struct Scsi_Host *shost, void *data, | |
461 | int (*fn)(struct device *dev, void *data)); | |
462 | ||
463 | extern struct iscsi_bus_flash_session * | |
464 | iscsi_create_flashnode_sess(struct Scsi_Host *shost, int index, | |
465 | struct iscsi_transport *transport, int dd_size); | |
466 | ||
467 | extern struct iscsi_bus_flash_conn * | |
468 | iscsi_create_flashnode_conn(struct Scsi_Host *shost, | |
469 | struct iscsi_bus_flash_session *fnode_sess, | |
470 | struct iscsi_transport *transport, int dd_size); | |
471 | ||
472 | extern void | |
473 | iscsi_destroy_flashnode_sess(struct iscsi_bus_flash_session *fnode_sess); | |
474 | ||
475 | extern void iscsi_destroy_all_flashnode(struct Scsi_Host *shost); | |
476 | extern int iscsi_flashnode_bus_match(struct device *dev, | |
477 | struct device_driver *drv); | |
c6a4bb2e AC |
478 | extern struct device * |
479 | iscsi_find_flashnode_sess(struct Scsi_Host *shost, void *data, | |
480 | int (*fn)(struct device *dev, void *data)); | |
c6a4bb2e | 481 | extern struct device * |
8526cb11 MC |
482 | iscsi_find_flashnode_conn(struct iscsi_bus_flash_session *fnode_sess); |
483 | ||
3e0f65b3 HZ |
484 | extern char * |
485 | iscsi_get_ipaddress_state_name(enum iscsi_ipaddress_state port_state); | |
486 | extern char *iscsi_get_router_state_name(enum iscsi_router_state router_state); | |
1da177e4 | 487 | #endif |