Whamcloud - gitweb
25953f82ffd3b3cb07436959ce2bd957b582a667
[fs/lustre-release.git] / lustre / ptlrpc / ptlrpc_module.c
1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2  * vim:expandtab:shiftwidth=8:tabstop=8:
3  *
4  * GPL HEADER START
5  *
6  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License version 2 only,
10  * as published by the Free Software Foundation.
11  *
12  * This program is distributed in the hope that it will be useful, but
13  * WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * General Public License version 2 for more details (a copy is included
16  * in the LICENSE file that accompanied this code).
17  *
18  * You should have received a copy of the GNU General Public License
19  * version 2 along with this program; If not, see
20  * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
21  *
22  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23  * CA 95054 USA or visit www.sun.com if you need additional information or
24  * have any questions.
25  *
26  * GPL HEADER END
27  */
28 /*
29  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
30  * Use is subject to license terms.
31  *
32  * Copyright (c) 2011, Whamcloud, Inc.
33  */
34 /*
35  * This file is part of Lustre, http://www.lustre.org/
36  * Lustre is a trademark of Sun Microsystems, Inc.
37  */
38
39 #ifndef EXPORT_SYMTAB
40 # define EXPORT_SYMTAB
41 #endif
42 #define DEBUG_SUBSYSTEM S_RPC
43
44 #ifndef __KERNEL__
45 # include <liblustre.h>
46 #endif
47
48 #include <obd_support.h>
49 #include <obd_class.h>
50 #include <lustre_net.h>
51 #include <lustre_req_layout.h>
52
53 #include "ptlrpc_internal.h"
54
55 extern cfs_spinlock_t ptlrpc_last_xid_lock;
56 #if RS_DEBUG
57 extern cfs_spinlock_t ptlrpc_rs_debug_lock;
58 #endif
59 extern cfs_spinlock_t ptlrpc_all_services_lock;
60 extern cfs_mutex_t pinger_mutex;
61 extern cfs_mutex_t ptlrpcd_mutex;
62
63 __init int ptlrpc_init(void)
64 {
65         int rc, cleanup_phase = 0;
66         ENTRY;
67
68         lustre_assert_wire_constants();
69 #if RS_DEBUG
70         cfs_spin_lock_init(&ptlrpc_rs_debug_lock);
71 #endif
72         cfs_spin_lock_init(&ptlrpc_all_services_lock);
73         cfs_mutex_init(&pinger_mutex);
74         cfs_mutex_init(&ptlrpcd_mutex);
75         ptlrpc_init_xid();
76
77         rc = req_layout_init();
78         if (rc)
79                 RETURN(rc);
80
81         rc = ptlrpc_hr_init();
82         if (rc)
83                 RETURN(rc);
84
85         cleanup_phase = 1;
86
87         rc = ptlrpc_init_portals();
88         if (rc)
89                 GOTO(cleanup, rc);
90         cleanup_phase = 2;
91
92         rc = ptlrpc_connection_init();
93         if (rc)
94                 GOTO(cleanup, rc);
95         cleanup_phase = 3;
96
97         ptlrpc_put_connection_superhack = ptlrpc_connection_put;
98
99         rc = ptlrpc_start_pinger();
100         if (rc)
101                 GOTO(cleanup, rc);
102         cleanup_phase = 4;
103
104         rc = ldlm_init();
105         if (rc)
106                 GOTO(cleanup, rc);
107         cleanup_phase = 5;
108
109         rc = sptlrpc_init();
110         if (rc)
111                 GOTO(cleanup, rc);
112
113         cleanup_phase = 6;
114         rc = llog_recov_init();
115         if (rc)
116                 GOTO(cleanup, rc);
117
118         RETURN(0);
119
120 cleanup:
121         switch(cleanup_phase) {
122         case 6:
123                 sptlrpc_fini();
124         case 5:
125                 ldlm_exit();
126         case 4:
127                 ptlrpc_stop_pinger();
128         case 3:
129                 ptlrpc_connection_fini();
130         case 2:
131                 ptlrpc_exit_portals();
132         case 1:
133                 ptlrpc_hr_fini();
134                 req_layout_fini();
135         default: ;
136         }
137
138         return rc;
139 }
140
141 #ifdef __KERNEL__
142 static void __exit ptlrpc_exit(void)
143 {
144         llog_recov_fini();
145         sptlrpc_fini();
146         ldlm_exit();
147         ptlrpc_stop_pinger();
148         ptlrpc_exit_portals();
149         ptlrpc_hr_fini();
150         ptlrpc_connection_fini();
151 }
152
153 /* connection.c */
154 EXPORT_SYMBOL(ptlrpc_connection_get);
155 EXPORT_SYMBOL(ptlrpc_connection_put);
156 EXPORT_SYMBOL(ptlrpc_connection_addref);
157 EXPORT_SYMBOL(ptlrpc_connection_init);
158 EXPORT_SYMBOL(ptlrpc_connection_fini);
159
160 /* niobuf.c */
161 EXPORT_SYMBOL(ptlrpc_start_bulk_transfer);
162 EXPORT_SYMBOL(ptlrpc_abort_bulk);
163 EXPORT_SYMBOL(ptlrpc_register_bulk);
164 EXPORT_SYMBOL(ptlrpc_unregister_bulk);
165 EXPORT_SYMBOL(ptlrpc_send_reply);
166 EXPORT_SYMBOL(ptlrpc_reply);
167 EXPORT_SYMBOL(ptlrpc_send_error);
168 EXPORT_SYMBOL(ptlrpc_error);
169 EXPORT_SYMBOL(ptlrpc_resend_req);
170 EXPORT_SYMBOL(ptl_send_rpc);
171
172 /* client.c */
173 EXPORT_SYMBOL(ptlrpc_init_client);
174 EXPORT_SYMBOL(ptlrpc_cleanup_client);
175 EXPORT_SYMBOL(ptlrpc_uuid_to_connection);
176 EXPORT_SYMBOL(ptlrpc_queue_wait);
177 EXPORT_SYMBOL(ptlrpc_replay_req);
178 EXPORT_SYMBOL(ptlrpc_restart_req);
179 EXPORT_SYMBOL(ptlrpc_add_rqs_to_pool);
180 EXPORT_SYMBOL(ptlrpc_init_rq_pool);
181 EXPORT_SYMBOL(ptlrpc_free_rq_pool);
182 EXPORT_SYMBOL(ptlrpc_prep_req_pool);
183 EXPORT_SYMBOL(ptlrpc_prep_fakereq);
184 EXPORT_SYMBOL(ptlrpc_fakereq_finished);
185 EXPORT_SYMBOL(ptlrpc_at_set_req_timeout);
186 EXPORT_SYMBOL(ptlrpc_request_alloc);
187 EXPORT_SYMBOL(ptlrpc_request_alloc_pool);
188 EXPORT_SYMBOL(ptlrpc_request_free);
189 EXPORT_SYMBOL(ptlrpc_request_pack);
190 EXPORT_SYMBOL(ptlrpc_request_alloc_pack);
191 EXPORT_SYMBOL(ptlrpc_prep_req);
192 EXPORT_SYMBOL(ptlrpc_unregister_reply);
193 EXPORT_SYMBOL(ptlrpc_req_finished);
194 EXPORT_SYMBOL(ptlrpc_req_finished_with_imp_lock);
195 EXPORT_SYMBOL(ptlrpc_request_addref);
196 EXPORT_SYMBOL(ptlrpc_prep_bulk_imp);
197 EXPORT_SYMBOL(ptlrpc_prep_bulk_exp);
198 EXPORT_SYMBOL(ptlrpc_free_bulk);
199 EXPORT_SYMBOL(ptlrpc_prep_bulk_page);
200 EXPORT_SYMBOL(ptlrpc_abort_inflight);
201 EXPORT_SYMBOL(ptlrpc_cleanup_imp);
202 EXPORT_SYMBOL(ptlrpc_retain_replayable_request);
203 EXPORT_SYMBOL(ptlrpc_next_xid);
204 EXPORT_SYMBOL(ptlrpc_req_set_repsize);
205 EXPORT_SYMBOL(ptlrpc_request_set_replen);
206
207 EXPORT_SYMBOL(ptlrpc_prep_set);
208 EXPORT_SYMBOL(ptlrpc_set_add_cb);
209 EXPORT_SYMBOL(ptlrpc_set_add_req);
210 EXPORT_SYMBOL(ptlrpc_set_add_new_req);
211 EXPORT_SYMBOL(ptlrpc_set_destroy);
212 EXPORT_SYMBOL(ptlrpc_set_next_timeout);
213 EXPORT_SYMBOL(ptlrpc_check_set);
214 EXPORT_SYMBOL(ptlrpc_set_wait);
215 EXPORT_SYMBOL(ptlrpc_expired_set);
216 EXPORT_SYMBOL(ptlrpc_interrupted_set);
217 EXPORT_SYMBOL(ptlrpc_mark_interrupted);
218
219 /* service.c */
220 EXPORT_SYMBOL(ptlrpc_save_lock);
221 EXPORT_SYMBOL(ptlrpc_schedule_difficult_reply);
222 EXPORT_SYMBOL(ptlrpc_commit_replies);
223 EXPORT_SYMBOL(ptlrpc_init_svc);
224 EXPORT_SYMBOL(ptlrpc_stop_all_threads);
225 EXPORT_SYMBOL(ptlrpc_start_threads);
226 EXPORT_SYMBOL(ptlrpc_start_thread);
227 EXPORT_SYMBOL(ptlrpc_unregister_service);
228 EXPORT_SYMBOL(ptlrpc_service_health_check);
229 EXPORT_SYMBOL(ptlrpc_hpreq_reorder);
230
231 /* pack_generic.c */
232 EXPORT_SYMBOL(lustre_msg_check_version);
233 EXPORT_SYMBOL(lustre_pack_request);
234 EXPORT_SYMBOL(lustre_pack_reply);
235 EXPORT_SYMBOL(lustre_pack_reply_flags);
236 EXPORT_SYMBOL(lustre_shrink_msg);
237 EXPORT_SYMBOL(lustre_free_reply_state);
238 EXPORT_SYMBOL(lustre_msg_size);
239 EXPORT_SYMBOL(lustre_packed_msg_size);
240 EXPORT_SYMBOL(ptlrpc_unpack_rep_msg);
241 EXPORT_SYMBOL(ptlrpc_unpack_req_msg);
242 EXPORT_SYMBOL(lustre_msg_buf);
243 EXPORT_SYMBOL(lustre_msg_string);
244 EXPORT_SYMBOL(ptlrpc_buf_set_swabbed);
245 EXPORT_SYMBOL(ptlrpc_buf_need_swab);
246 EXPORT_SYMBOL(lustre_swab_ptlrpc_body);
247 EXPORT_SYMBOL(lustre_swab_obdo);
248 EXPORT_SYMBOL(lustre_swab_obd_statfs);
249 EXPORT_SYMBOL(lustre_swab_obd_ioobj);
250 EXPORT_SYMBOL(lustre_swab_niobuf_remote);
251 EXPORT_SYMBOL(lustre_swab_ost_body);
252 EXPORT_SYMBOL(lustre_swab_ost_last_id);
253 EXPORT_SYMBOL(lustre_swab_ost_lvb);
254 EXPORT_SYMBOL(lustre_swab_mdt_body);
255 EXPORT_SYMBOL(lustre_swab_mdt_ioepoch);
256 EXPORT_SYMBOL(lustre_swab_obd_quotactl);
257 EXPORT_SYMBOL(lustre_swab_mdt_remote_perm);
258 EXPORT_SYMBOL(lustre_swab_mdt_rec_reint);
259 EXPORT_SYMBOL(lustre_swab_lov_desc);
260 EXPORT_SYMBOL(lustre_swab_lov_user_md_v1);
261 EXPORT_SYMBOL(lustre_swab_lov_user_md_v3);
262 EXPORT_SYMBOL(lustre_swab_lov_user_md_objects);
263 EXPORT_SYMBOL(lustre_swab_lov_mds_md);
264 EXPORT_SYMBOL(lustre_swab_ldlm_res_id);
265 EXPORT_SYMBOL(lustre_swab_ldlm_policy_data);
266 EXPORT_SYMBOL(lustre_swab_ldlm_intent);
267 EXPORT_SYMBOL(lustre_swab_ldlm_resource_desc);
268 EXPORT_SYMBOL(lustre_swab_ldlm_lock_desc);
269 EXPORT_SYMBOL(lustre_swab_ldlm_request);
270 EXPORT_SYMBOL(lustre_swab_ldlm_reply);
271 EXPORT_SYMBOL(dump_ioo);
272 EXPORT_SYMBOL(dump_rniobuf);
273 EXPORT_SYMBOL(dump_obdo);
274 EXPORT_SYMBOL(dump_ost_body);
275 EXPORT_SYMBOL(dump_rcs);
276 EXPORT_SYMBOL(lustre_swab_qdata);
277 EXPORT_SYMBOL(lustre_swab_quota_adjust_qunit);
278 EXPORT_SYMBOL(lustre_msg_get_flags);
279 EXPORT_SYMBOL(lustre_msg_add_flags);
280 EXPORT_SYMBOL(lustre_msg_set_flags);
281 EXPORT_SYMBOL(lustre_msg_clear_flags);
282 EXPORT_SYMBOL(lustre_msg_get_op_flags);
283 EXPORT_SYMBOL(lustre_msg_add_op_flags);
284 EXPORT_SYMBOL(lustre_msg_set_op_flags);
285 EXPORT_SYMBOL(lustre_msg_get_handle );
286 EXPORT_SYMBOL(lustre_msg_get_type);
287 EXPORT_SYMBOL(lustre_msg_get_version);
288 EXPORT_SYMBOL(lustre_msg_add_version);
289 EXPORT_SYMBOL(lustre_msg_get_opc);
290 EXPORT_SYMBOL(lustre_msg_get_last_xid);
291 EXPORT_SYMBOL(lustre_msg_get_last_committed);
292 EXPORT_SYMBOL(lustre_msg_get_versions);
293 EXPORT_SYMBOL(lustre_msg_get_transno);
294 EXPORT_SYMBOL(lustre_msg_get_status);
295 EXPORT_SYMBOL(lustre_msg_get_slv);
296 EXPORT_SYMBOL(lustre_msg_get_limit);
297 EXPORT_SYMBOL(lustre_msg_set_slv);
298 EXPORT_SYMBOL(lustre_msg_set_limit);
299 EXPORT_SYMBOL(lustre_msg_get_conn_cnt);
300 EXPORT_SYMBOL(lustre_msg_is_v1);
301 EXPORT_SYMBOL(lustre_msg_get_magic);
302 EXPORT_SYMBOL(lustre_msg_set_handle);
303 EXPORT_SYMBOL(lustre_msg_set_type);
304 EXPORT_SYMBOL(lustre_msg_set_opc);
305 EXPORT_SYMBOL(lustre_msg_set_last_xid);
306 EXPORT_SYMBOL(lustre_msg_set_last_committed);
307 EXPORT_SYMBOL(lustre_msg_set_versions);
308 EXPORT_SYMBOL(lustre_msg_set_transno);
309 EXPORT_SYMBOL(lustre_msg_set_status);
310 EXPORT_SYMBOL(lustre_msg_set_conn_cnt);
311 EXPORT_SYMBOL(lustre_swab_mgs_target_info);
312 EXPORT_SYMBOL(lustre_swab_generic_32s);
313 EXPORT_SYMBOL(lustre_swab_lustre_capa);
314 EXPORT_SYMBOL(lustre_swab_lustre_capa_key);
315 EXPORT_SYMBOL(lustre_swab_fiemap);
316
317 /* recover.c */
318 EXPORT_SYMBOL(ptlrpc_disconnect_import);
319 EXPORT_SYMBOL(ptlrpc_resend);
320 EXPORT_SYMBOL(ptlrpc_wake_delayed);
321 EXPORT_SYMBOL(ptlrpc_set_import_active);
322 EXPORT_SYMBOL(ptlrpc_activate_import);
323 EXPORT_SYMBOL(ptlrpc_deactivate_import);
324 EXPORT_SYMBOL(ptlrpc_invalidate_import);
325 EXPORT_SYMBOL(ptlrpc_fail_import);
326 EXPORT_SYMBOL(ptlrpc_recover_import);
327
328 /* pinger.c */
329 EXPORT_SYMBOL(ptlrpc_pinger_add_import);
330 EXPORT_SYMBOL(ptlrpc_pinger_del_import);
331 EXPORT_SYMBOL(ptlrpc_add_timeout_client);
332 EXPORT_SYMBOL(ptlrpc_del_timeout_client);
333 EXPORT_SYMBOL(ptlrpc_pinger_sending_on_import);
334
335 /* ptlrpcd.c */
336 EXPORT_SYMBOL(ptlrpcd_addref);
337 EXPORT_SYMBOL(ptlrpcd_decref);
338 EXPORT_SYMBOL(ptlrpcd_add_req);
339 EXPORT_SYMBOL(ptlrpcd_wake);
340
341 /* llogd.c */
342 EXPORT_SYMBOL(llog_origin_handle_create);
343 EXPORT_SYMBOL(llog_origin_handle_destroy);
344 EXPORT_SYMBOL(llog_origin_handle_next_block);
345 EXPORT_SYMBOL(llog_origin_handle_prev_block);
346 EXPORT_SYMBOL(llog_origin_handle_read_header);
347 EXPORT_SYMBOL(llog_origin_handle_close);
348 EXPORT_SYMBOL(llog_client_ops);
349 EXPORT_SYMBOL(llog_catinfo);
350
351 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
352 MODULE_DESCRIPTION("Lustre Request Processor and Lock Management");
353 MODULE_LICENSE("GPL");
354
355 cfs_module(ptlrpc, "1.0.0", ptlrpc_init, ptlrpc_exit);
356 #endif