lustre/ptlrpc/ptlrpc_module.c

   1 /*
   2  * GPL HEADER START
   3  *
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 only,
   8  * as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License version 2 for more details (a copy is included
  14  * in the LICENSE file that accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * version 2 along with this program; If not, see
  18  * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
  19  *
  20  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  21  * CA 95054 USA or visit www.sun.com if you need additional information or
  22  * have any questions.
  23  *
  24  * GPL HEADER END
  25  */
  26 /*
  27  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  28  * Use is subject to license terms.
  29  *
  30  * Copyright (c) 2011, Whamcloud, Inc.
  31  */
  32 /*
  33  * This file is part of Lustre, http://www.lustre.org/
  34  * Lustre is a trademark of Sun Microsystems, Inc.
  35  */
  36
  37 #define DEBUG_SUBSYSTEM S_RPC
  38
  39 #ifndef __KERNEL__
  40 # include <liblustre.h>
  41 #endif
  42
  43 #include <obd_support.h>
  44 #include <obd_class.h>
  45 #include <lustre_net.h>
  46 #include <lustre_req_layout.h>
  47
  48 #include "ptlrpc_internal.h"
  49
  50 extern cfs_spinlock_t ptlrpc_last_xid_lock;
  51 #if RS_DEBUG
  52 extern cfs_spinlock_t ptlrpc_rs_debug_lock;
  53 #endif
  54 extern cfs_spinlock_t ptlrpc_all_services_lock;
  55 extern cfs_mutex_t pinger_mutex;
  56 extern cfs_mutex_t ptlrpcd_mutex;
  57
  58 __init int ptlrpc_init(void)
  59 {
  60         int rc, cleanup_phase = 0;
  61         ENTRY;
  62
  63         lustre_assert_wire_constants();
  64 #if RS_DEBUG
  65         cfs_spin_lock_init(&ptlrpc_rs_debug_lock);
  66 #endif
  67         cfs_spin_lock_init(&ptlrpc_all_services_lock);
  68         cfs_mutex_init(&pinger_mutex);
  69         cfs_mutex_init(&ptlrpcd_mutex);
  70         ptlrpc_init_xid();
  71
  72         rc = req_layout_init();
  73         if (rc)
  74                 RETURN(rc);
  75
  76         rc = ptlrpc_hr_init();
  77         if (rc)
  78                 RETURN(rc);
  79
  80         cleanup_phase = 1;
  81
  82         rc = ptlrpc_init_portals();
  83         if (rc)
  84                 GOTO(cleanup, rc);
  85         cleanup_phase = 2;
  86
  87         rc = ptlrpc_connection_init();
  88         if (rc)
  89                 GOTO(cleanup, rc);
  90         cleanup_phase = 3;
  91
  92         ptlrpc_put_connection_superhack = ptlrpc_connection_put;
  93
  94         rc = ptlrpc_start_pinger();
  95         if (rc)
  96                 GOTO(cleanup, rc);
  97         cleanup_phase = 4;
  98
  99         rc = ldlm_init();
 100         if (rc)
 101                 GOTO(cleanup, rc);
 102         cleanup_phase = 5;
 103
 104         rc = sptlrpc_init();
 105         if (rc)
 106                 GOTO(cleanup, rc);
 107
 108         cleanup_phase = 6;
 109         rc = llog_recov_init();
 110         if (rc)
 111                 GOTO(cleanup, rc);
 112
 113 #ifdef __KERNEL__
 114         cleanup_phase = 7;
 115         rc = lut_mod_init();
 116         if (rc)
 117                 GOTO(cleanup, rc);
 118 #endif
 119         RETURN(0);
 120
 121 cleanup:
 122         switch(cleanup_phase) {
 123 #ifdef __KERNEL__
 124         case 7:
 125                 llog_recov_fini();
 126 #endif
 127         case 6:
 128                 sptlrpc_fini();
 129         case 5:
 130                 ldlm_exit();
 131         case 4:
 132                 ptlrpc_stop_pinger();
 133         case 3:
 134                 ptlrpc_connection_fini();
 135         case 2:
 136                 ptlrpc_exit_portals();
 137         case 1:
 138                 ptlrpc_hr_fini();
 139                 req_layout_fini();
 140         default: ;
 141         }
 142
 143         return rc;
 144 }
 145
 146 #ifdef __KERNEL__
 147 static void __exit ptlrpc_exit(void)
 148 {
 149         lut_mod_exit();
 150         llog_recov_fini();
 151         sptlrpc_fini();
 152         ldlm_exit();
 153         ptlrpc_stop_pinger();
 154         ptlrpc_exit_portals();
 155         ptlrpc_hr_fini();
 156         ptlrpc_connection_fini();
 157 }
 158
 159 /* connection.c */
 160 EXPORT_SYMBOL(ptlrpc_connection_get);
 161 EXPORT_SYMBOL(ptlrpc_connection_put);
 162 EXPORT_SYMBOL(ptlrpc_connection_addref);
 163 EXPORT_SYMBOL(ptlrpc_connection_init);
 164 EXPORT_SYMBOL(ptlrpc_connection_fini);
 165
 166 /* niobuf.c */
 167 #ifdef HAVE_SERVER_SUPPORT
 168 EXPORT_SYMBOL(ptlrpc_prep_bulk_exp);
 169 EXPORT_SYMBOL(ptlrpc_start_bulk_transfer);
 170 EXPORT_SYMBOL(ptlrpc_abort_bulk);
 171 #endif
 172 EXPORT_SYMBOL(ptlrpc_register_bulk);
 173 EXPORT_SYMBOL(ptlrpc_unregister_bulk);
 174 EXPORT_SYMBOL(ptlrpc_send_reply);
 175 EXPORT_SYMBOL(ptlrpc_reply);
 176 EXPORT_SYMBOL(ptlrpc_send_error);
 177 EXPORT_SYMBOL(ptlrpc_error);
 178 EXPORT_SYMBOL(ptlrpc_resend_req);
 179 EXPORT_SYMBOL(ptl_send_rpc);
 180
 181 /* client.c */
 182 EXPORT_SYMBOL(ptlrpc_init_client);
 183 EXPORT_SYMBOL(ptlrpc_cleanup_client);
 184 EXPORT_SYMBOL(ptlrpc_uuid_to_connection);
 185 EXPORT_SYMBOL(ptlrpc_queue_wait);
 186 EXPORT_SYMBOL(ptlrpc_replay_req);
 187 EXPORT_SYMBOL(ptlrpc_restart_req);
 188 EXPORT_SYMBOL(ptlrpc_add_rqs_to_pool);
 189 EXPORT_SYMBOL(ptlrpc_init_rq_pool);
 190 EXPORT_SYMBOL(ptlrpc_free_rq_pool);
 191 EXPORT_SYMBOL(ptlrpc_prep_req_pool);
 192 EXPORT_SYMBOL(ptlrpc_prep_fakereq);
 193 EXPORT_SYMBOL(ptlrpc_fakereq_finished);
 194 EXPORT_SYMBOL(ptlrpc_at_set_req_timeout);
 195 EXPORT_SYMBOL(ptlrpc_request_alloc);
 196 EXPORT_SYMBOL(ptlrpc_request_alloc_pool);
 197 EXPORT_SYMBOL(ptlrpc_request_free);
 198 EXPORT_SYMBOL(ptlrpc_request_pack);
 199 EXPORT_SYMBOL(ptlrpc_request_alloc_pack);
 200 EXPORT_SYMBOL(ptlrpc_prep_req);
 201 EXPORT_SYMBOL(ptlrpc_unregister_reply);
 202 EXPORT_SYMBOL(ptlrpc_req_finished);
 203 EXPORT_SYMBOL(ptlrpc_req_finished_with_imp_lock);
 204 EXPORT_SYMBOL(ptlrpc_request_addref);
 205 EXPORT_SYMBOL(ptlrpc_prep_bulk_imp);
 206 EXPORT_SYMBOL(ptlrpc_free_bulk);
 207 EXPORT_SYMBOL(ptlrpc_prep_bulk_page);
 208 EXPORT_SYMBOL(ptlrpc_abort_inflight);
 209 EXPORT_SYMBOL(ptlrpc_cleanup_imp);
 210 EXPORT_SYMBOL(ptlrpc_retain_replayable_request);
 211 EXPORT_SYMBOL(ptlrpc_next_xid);
 212 EXPORT_SYMBOL(ptlrpc_req_set_repsize);
 213 EXPORT_SYMBOL(ptlrpc_request_set_replen);
 214
 215 EXPORT_SYMBOL(ptlrpc_prep_set);
 216 EXPORT_SYMBOL(ptlrpc_set_add_cb);
 217 EXPORT_SYMBOL(ptlrpc_set_add_req);
 218 EXPORT_SYMBOL(ptlrpc_set_add_new_req);
 219 EXPORT_SYMBOL(ptlrpc_set_destroy);
 220 EXPORT_SYMBOL(ptlrpc_set_next_timeout);
 221 EXPORT_SYMBOL(ptlrpc_check_set);
 222 EXPORT_SYMBOL(ptlrpc_set_wait);
 223 EXPORT_SYMBOL(ptlrpc_expired_set);
 224 EXPORT_SYMBOL(ptlrpc_interrupted_set);
 225 EXPORT_SYMBOL(ptlrpc_mark_interrupted);
 226
 227 /* service.c */
 228 EXPORT_SYMBOL(ptlrpc_save_lock);
 229 EXPORT_SYMBOL(ptlrpc_schedule_difficult_reply);
 230 EXPORT_SYMBOL(ptlrpc_commit_replies);
 231 EXPORT_SYMBOL(ptlrpc_register_service);
 232 EXPORT_SYMBOL(ptlrpc_stop_all_threads);
 233 EXPORT_SYMBOL(ptlrpc_start_threads);
 234 EXPORT_SYMBOL(ptlrpc_start_thread);
 235 EXPORT_SYMBOL(ptlrpc_unregister_service);
 236 EXPORT_SYMBOL(ptlrpc_service_health_check);
 237 EXPORT_SYMBOL(ptlrpc_hpreq_reorder);
 238
 239 /* pack_generic.c */
 240 EXPORT_SYMBOL(lustre_msg_check_version);
 241 EXPORT_SYMBOL(lustre_pack_request);
 242 EXPORT_SYMBOL(lustre_pack_reply);
 243 EXPORT_SYMBOL(lustre_pack_reply_flags);
 244 EXPORT_SYMBOL(lustre_shrink_msg);
 245 EXPORT_SYMBOL(lustre_free_reply_state);
 246 EXPORT_SYMBOL(lustre_msg_size);
 247 EXPORT_SYMBOL(lustre_packed_msg_size);
 248 EXPORT_SYMBOL(ptlrpc_unpack_rep_msg);
 249 EXPORT_SYMBOL(ptlrpc_unpack_req_msg);
 250 EXPORT_SYMBOL(lustre_msg_buf);
 251 EXPORT_SYMBOL(lustre_msg_string);
 252 EXPORT_SYMBOL(ptlrpc_buf_set_swabbed);
 253 EXPORT_SYMBOL(ptlrpc_buf_need_swab);
 254 EXPORT_SYMBOL(lustre_swab_ptlrpc_body);
 255 EXPORT_SYMBOL(lustre_swab_obdo);
 256 EXPORT_SYMBOL(lustre_swab_obd_statfs);
 257 EXPORT_SYMBOL(lustre_swab_obd_ioobj);
 258 EXPORT_SYMBOL(lustre_swab_niobuf_remote);
 259 EXPORT_SYMBOL(lustre_swab_ost_body);
 260 EXPORT_SYMBOL(lustre_swab_ost_last_id);
 261 EXPORT_SYMBOL(lustre_swab_lvb);
 262 EXPORT_SYMBOL(lustre_swab_mdt_body);
 263 EXPORT_SYMBOL(lustre_swab_mdt_ioepoch);
 264 EXPORT_SYMBOL(lustre_swab_obd_quotactl);
 265 EXPORT_SYMBOL(lustre_swab_mdt_remote_perm);
 266 EXPORT_SYMBOL(lustre_swab_mdt_rec_reint);
 267 EXPORT_SYMBOL(lustre_swab_lov_desc);
 268 EXPORT_SYMBOL(lustre_swab_lov_user_md_v1);
 269 EXPORT_SYMBOL(lustre_swab_lov_user_md_v3);
 270 EXPORT_SYMBOL(lustre_swab_lov_user_md_objects);
 271 EXPORT_SYMBOL(lustre_swab_lov_mds_md);
 272 EXPORT_SYMBOL(lustre_swab_ldlm_res_id);
 273 EXPORT_SYMBOL(lustre_swab_ldlm_policy_data);
 274 EXPORT_SYMBOL(lustre_swab_ldlm_intent);
 275 EXPORT_SYMBOL(lustre_swab_ldlm_resource_desc);
 276 EXPORT_SYMBOL(lustre_swab_ldlm_lock_desc);
 277 EXPORT_SYMBOL(lustre_swab_ldlm_request);
 278 EXPORT_SYMBOL(lustre_swab_ldlm_reply);
 279 EXPORT_SYMBOL(dump_ioo);
 280 EXPORT_SYMBOL(dump_rniobuf);
 281 EXPORT_SYMBOL(dump_obdo);
 282 EXPORT_SYMBOL(dump_ost_body);
 283 EXPORT_SYMBOL(dump_rcs);
 284 EXPORT_SYMBOL(lustre_swab_qdata);
 285 EXPORT_SYMBOL(lustre_swab_quota_adjust_qunit);
 286 EXPORT_SYMBOL(lustre_msg_get_flags);
 287 EXPORT_SYMBOL(lustre_msg_add_flags);
 288 EXPORT_SYMBOL(lustre_msg_set_flags);
 289 EXPORT_SYMBOL(lustre_msg_clear_flags);
 290 EXPORT_SYMBOL(lustre_msg_get_op_flags);
 291 EXPORT_SYMBOL(lustre_msg_add_op_flags);
 292 EXPORT_SYMBOL(lustre_msg_set_op_flags);
 293 EXPORT_SYMBOL(lustre_msg_get_handle );
 294 EXPORT_SYMBOL(lustre_msg_get_type);
 295 EXPORT_SYMBOL(lustre_msg_get_version);
 296 EXPORT_SYMBOL(lustre_msg_add_version);
 297 EXPORT_SYMBOL(lustre_msg_get_opc);
 298 EXPORT_SYMBOL(lustre_msg_get_last_xid);
 299 EXPORT_SYMBOL(lustre_msg_get_last_committed);
 300 EXPORT_SYMBOL(lustre_msg_get_versions);
 301 EXPORT_SYMBOL(lustre_msg_get_transno);
 302 EXPORT_SYMBOL(lustre_msg_get_status);
 303 EXPORT_SYMBOL(lustre_msg_get_slv);
 304 EXPORT_SYMBOL(lustre_msg_get_limit);
 305 EXPORT_SYMBOL(lustre_msg_set_slv);
 306 EXPORT_SYMBOL(lustre_msg_set_limit);
 307 EXPORT_SYMBOL(lustre_msg_get_conn_cnt);
 308 EXPORT_SYMBOL(lustre_msg_is_v1);
 309 EXPORT_SYMBOL(lustre_msg_get_magic);
 310 EXPORT_SYMBOL(lustre_msg_set_handle);
 311 EXPORT_SYMBOL(lustre_msg_set_type);
 312 EXPORT_SYMBOL(lustre_msg_set_opc);
 313 EXPORT_SYMBOL(lustre_msg_set_last_xid);
 314 EXPORT_SYMBOL(lustre_msg_set_last_committed);
 315 EXPORT_SYMBOL(lustre_msg_set_versions);
 316 EXPORT_SYMBOL(lustre_msg_set_transno);
 317 EXPORT_SYMBOL(lustre_msg_set_status);
 318 EXPORT_SYMBOL(lustre_msg_set_conn_cnt);
 319 EXPORT_SYMBOL(lustre_swab_mgs_target_info);
 320 EXPORT_SYMBOL(lustre_swab_generic_32s);
 321 EXPORT_SYMBOL(lustre_swab_lustre_capa);
 322 EXPORT_SYMBOL(lustre_swab_lustre_capa_key);
 323 EXPORT_SYMBOL(lustre_swab_fiemap);
 324
 325 /* recover.c */
 326 EXPORT_SYMBOL(ptlrpc_disconnect_import);
 327 EXPORT_SYMBOL(ptlrpc_resend);
 328 EXPORT_SYMBOL(ptlrpc_wake_delayed);
 329 EXPORT_SYMBOL(ptlrpc_set_import_active);
 330 EXPORT_SYMBOL(ptlrpc_activate_import);
 331 EXPORT_SYMBOL(ptlrpc_deactivate_import);
 332 EXPORT_SYMBOL(ptlrpc_invalidate_import);
 333 EXPORT_SYMBOL(ptlrpc_fail_import);
 334 EXPORT_SYMBOL(ptlrpc_recover_import);
 335
 336 /* pinger.c */
 337 EXPORT_SYMBOL(ptlrpc_pinger_add_import);
 338 EXPORT_SYMBOL(ptlrpc_pinger_del_import);
 339 EXPORT_SYMBOL(ptlrpc_add_timeout_client);
 340 EXPORT_SYMBOL(ptlrpc_del_timeout_client);
 341 EXPORT_SYMBOL(ptlrpc_pinger_sending_on_import);
 342
 343 /* ptlrpcd.c */
 344 EXPORT_SYMBOL(ptlrpcd_addref);
 345 EXPORT_SYMBOL(ptlrpcd_decref);
 346 EXPORT_SYMBOL(ptlrpcd_add_req);
 347 EXPORT_SYMBOL(ptlrpcd_wake);
 348
 349 /* llogd.c */
 350 EXPORT_SYMBOL(llog_origin_handle_create);
 351 EXPORT_SYMBOL(llog_origin_handle_destroy);
 352 EXPORT_SYMBOL(llog_origin_handle_next_block);
 353 EXPORT_SYMBOL(llog_origin_handle_prev_block);
 354 EXPORT_SYMBOL(llog_origin_handle_read_header);
 355 EXPORT_SYMBOL(llog_origin_handle_close);
 356 EXPORT_SYMBOL(llog_client_ops);
 357 EXPORT_SYMBOL(llog_catinfo);
 358
 359 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
 360 MODULE_DESCRIPTION("Lustre Request Processor and Lock Management");
 361 MODULE_LICENSE("GPL");
 362
 363 cfs_module(ptlrpc, "1.0.0", ptlrpc_init, ptlrpc_exit);
 364 #endif