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  2008 Sun Microsystems, Inc. All rights reserved
  30  * Use is subject to license terms.
  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 #ifndef EXPORT_SYMTAB
  38 # define EXPORT_SYMTAB
  39 #endif
  40 #define DEBUG_SUBSYSTEM S_RPC
  41
  42 #ifndef __KERNEL__
  43 # include <liblustre.h>
  44 #endif
  45
  46 #include <obd_support.h>
  47 #include <obd_class.h>
  48 #include <lustre_net.h>
  49
  50 #include "ptlrpc_internal.h"
  51
  52 cfs_mem_cache_t *ptlrpc_cbdata_slab;
  53 extern spinlock_t ptlrpc_last_xid_lock;
  54 extern spinlock_t ptlrpc_rs_debug_lock;
  55 extern spinlock_t ptlrpc_all_services_lock;
  56 extern struct semaphore pinger_sem;
  57 extern struct semaphore ptlrpcd_sem;
  58 #ifdef __KERNEL__
  59 extern cfs_time_t pinger_next_wake;
  60 #endif
  61
  62 __init int ptlrpc_init(void)
  63 {
  64         int rc, cleanup_phase = 0;
  65         ENTRY;
  66
  67         lustre_assert_wire_constants();
  68         spin_lock_init(&ptlrpc_rs_debug_lock);
  69         spin_lock_init(&ptlrpc_all_services_lock);
  70         init_mutex(&pinger_sem);
  71         init_mutex(&ptlrpcd_sem);
  72         ptlrpc_init_xid();
  73
  74 #ifdef __KERNEL__
  75         pinger_next_wake = 0;
  76 #endif
  77
  78         rc = ptlrpc_init_portals();
  79         if (rc)
  80                 RETURN(rc);
  81         cleanup_phase = 1;
  82
  83         rc = ptlrpc_connection_init();
  84         if (rc)
  85                 GOTO(cleanup, rc);
  86         cleanup_phase = 2;
  87
  88         ptlrpc_put_connection_superhack = ptlrpc_connection_put;
  89
  90         rc = ptlrpc_start_pinger();
  91         if (rc)
  92                 GOTO(cleanup, rc);
  93         cleanup_phase = 3;
  94
  95         rc = ldlm_init();
  96         if (rc)
  97                 GOTO(cleanup, rc);
  98         cleanup_phase = 4;
  99
 100         ptlrpc_cbdata_slab = cfs_mem_cache_create("ptlrpc_cbdatas",
 101                                 sizeof (struct ptlrpc_set_cbdata), 0,
 102                                 SLAB_HWCACHE_ALIGN);
 103         if (ptlrpc_cbdata_slab == NULL)
 104                 GOTO(cleanup, rc);
 105
 106         cleanup_phase = 5;
 107         rc = llog_recov_init();
 108         if (rc)
 109                 GOTO(cleanup, rc);
 110
 111         RETURN(0);
 112
 113 cleanup:
 114         switch(cleanup_phase) {
 115         case 5:
 116                 cfs_mem_cache_destroy(ptlrpc_cbdata_slab);
 117         case 4:
 118                 ldlm_exit();
 119         case 3:
 120                 ptlrpc_stop_pinger();
 121         case 2:
 122                 ptlrpc_connection_fini();
 123         case 1:
 124                 ptlrpc_exit_portals();
 125         default: ;
 126         }
 127
 128         return rc;
 129 }
 130
 131 #ifdef __KERNEL__
 132 static void __exit ptlrpc_exit(void)
 133 {
 134         llog_recov_fini();
 135         ldlm_exit();
 136         ptlrpc_stop_pinger();
 137         ptlrpc_exit_portals();
 138         ptlrpc_connection_fini();
 139         cfs_mem_cache_destroy(ptlrpc_cbdata_slab);
 140 }
 141
 142 /* connection.c */
 143 EXPORT_SYMBOL(ptlrpc_connection_get);
 144 EXPORT_SYMBOL(ptlrpc_connection_put);
 145 EXPORT_SYMBOL(ptlrpc_connection_addref);
 146 EXPORT_SYMBOL(ptlrpc_connection_init);
 147 EXPORT_SYMBOL(ptlrpc_connection_fini);
 148
 149 /* niobuf.c */
 150 EXPORT_SYMBOL(ptlrpc_start_bulk_transfer);
 151 EXPORT_SYMBOL(ptlrpc_abort_bulk);
 152 EXPORT_SYMBOL(ptlrpc_register_bulk);
 153 EXPORT_SYMBOL(ptlrpc_unregister_bulk);
 154 EXPORT_SYMBOL(ptlrpc_send_reply);
 155 EXPORT_SYMBOL(ptlrpc_reply);
 156 EXPORT_SYMBOL(ptlrpc_send_error);
 157 EXPORT_SYMBOL(ptlrpc_error);
 158 EXPORT_SYMBOL(ptlrpc_resend_req);
 159 EXPORT_SYMBOL(ptl_send_rpc);
 160
 161 /* client.c */
 162 EXPORT_SYMBOL(ptlrpc_init_client);
 163 EXPORT_SYMBOL(ptlrpc_cleanup_client);
 164 EXPORT_SYMBOL(ptlrpc_uuid_to_connection);
 165 EXPORT_SYMBOL(ptlrpc_queue_wait);
 166 EXPORT_SYMBOL(ptlrpc_replay_req);
 167 EXPORT_SYMBOL(ptlrpc_restart_req);
 168 EXPORT_SYMBOL(ptlrpc_add_rqs_to_pool);
 169 EXPORT_SYMBOL(ptlrpc_init_rq_pool);
 170 EXPORT_SYMBOL(ptlrpc_free_rq_pool);
 171 EXPORT_SYMBOL(ptlrpc_prep_req_pool);
 172 EXPORT_SYMBOL(ptlrpc_prep_fakereq);
 173 EXPORT_SYMBOL(ptlrpc_fakereq_finished);
 174 EXPORT_SYMBOL(ptlrpc_at_set_req_timeout);
 175 EXPORT_SYMBOL(ptlrpc_prep_req);
 176 EXPORT_SYMBOL(ptlrpc_unregister_reply);
 177 EXPORT_SYMBOL(ptlrpc_req_finished);
 178 EXPORT_SYMBOL(ptlrpc_req_finished_with_imp_lock);
 179 EXPORT_SYMBOL(ptlrpc_request_addref);
 180 EXPORT_SYMBOL(ptlrpc_prep_bulk_imp);
 181 EXPORT_SYMBOL(ptlrpc_prep_bulk_exp);
 182 EXPORT_SYMBOL(ptlrpc_free_bulk);
 183 EXPORT_SYMBOL(ptlrpc_prep_bulk_page);
 184 EXPORT_SYMBOL(ptlrpc_abort_inflight);
 185 EXPORT_SYMBOL(ptlrpc_cleanup_imp);
 186 EXPORT_SYMBOL(ptlrpc_retain_replayable_request);
 187 EXPORT_SYMBOL(ptlrpc_next_xid);
 188
 189 EXPORT_SYMBOL(ptlrpc_prep_set);
 190 EXPORT_SYMBOL(ptlrpc_set_add_cb);
 191 EXPORT_SYMBOL(ptlrpc_set_add_req);
 192 EXPORT_SYMBOL(ptlrpc_set_add_new_req);
 193 EXPORT_SYMBOL(ptlrpc_set_destroy);
 194 EXPORT_SYMBOL(ptlrpc_set_next_timeout);
 195 EXPORT_SYMBOL(ptlrpc_check_set);
 196 EXPORT_SYMBOL(ptlrpc_set_wait);
 197 EXPORT_SYMBOL(ptlrpc_expired_set);
 198 EXPORT_SYMBOL(ptlrpc_interrupted_set);
 199 EXPORT_SYMBOL(ptlrpc_mark_interrupted);
 200
 201 /* service.c */
 202 EXPORT_SYMBOL(ptlrpc_save_lock);
 203 EXPORT_SYMBOL(ptlrpc_schedule_difficult_reply);
 204 EXPORT_SYMBOL(ptlrpc_commit_replies);
 205 EXPORT_SYMBOL(ptlrpc_init_svc);
 206 EXPORT_SYMBOL(ptlrpc_stop_all_threads);
 207 EXPORT_SYMBOL(ptlrpc_start_threads);
 208 EXPORT_SYMBOL(ptlrpc_start_thread);
 209 EXPORT_SYMBOL(ptlrpc_unregister_service);
 210 EXPORT_SYMBOL(ptlrpc_service_health_check);
 211 EXPORT_SYMBOL(ptlrpc_hpreq_reorder);
 212
 213 /* pack_generic.c */
 214 EXPORT_SYMBOL(lustre_msg_check_version);
 215 EXPORT_SYMBOL(lustre_pack_request);
 216 EXPORT_SYMBOL(lustre_pack_reply);
 217 EXPORT_SYMBOL(lustre_pack_reply_flags);
 218 EXPORT_SYMBOL(lustre_shrink_reply);
 219 EXPORT_SYMBOL(lustre_free_reply_state);
 220 EXPORT_SYMBOL(lustre_msg_size);
 221 EXPORT_SYMBOL(lustre_packed_msg_size);
 222 EXPORT_SYMBOL(lustre_unpack_msg);
 223 EXPORT_SYMBOL(lustre_msg_buf);
 224 EXPORT_SYMBOL(lustre_msg_string);
 225 EXPORT_SYMBOL(lustre_swab_reqbuf);
 226 EXPORT_SYMBOL(lustre_swab_repbuf);
 227 EXPORT_SYMBOL(lustre_swab_obdo);
 228 EXPORT_SYMBOL(lustre_swab_obd_statfs);
 229 EXPORT_SYMBOL(lustre_swab_obd_ioobj);
 230 EXPORT_SYMBOL(lustre_swab_niobuf_remote);
 231 EXPORT_SYMBOL(lustre_swab_ost_body);
 232 EXPORT_SYMBOL(lustre_swab_ost_last_id);
 233 EXPORT_SYMBOL(lustre_swab_ost_lvb);
 234 EXPORT_SYMBOL(lustre_swab_mds_status_req);
 235 EXPORT_SYMBOL(lustre_swab_mds_body);
 236 EXPORT_SYMBOL(lustre_swab_obd_quotactl);
 237 EXPORT_SYMBOL(lustre_swab_mds_rec_setattr);
 238 EXPORT_SYMBOL(lustre_swab_mds_rec_create);
 239 EXPORT_SYMBOL(lustre_swab_mds_rec_join);
 240 EXPORT_SYMBOL(lustre_swab_mds_rec_link);
 241 EXPORT_SYMBOL(lustre_swab_mds_rec_unlink);
 242 EXPORT_SYMBOL(lustre_swab_mds_rec_rename);
 243 EXPORT_SYMBOL(lustre_swab_lov_desc);
 244 EXPORT_SYMBOL(lustre_swab_lov_user_md);
 245 EXPORT_SYMBOL(lustre_swab_lov_user_md_objects);
 246 EXPORT_SYMBOL(lustre_swab_lov_user_md_join);
 247 EXPORT_SYMBOL(lustre_swab_lov_mds_md);
 248 EXPORT_SYMBOL(lustre_swab_ldlm_res_id);
 249 EXPORT_SYMBOL(lustre_swab_ldlm_policy_data);
 250 EXPORT_SYMBOL(lustre_swab_ldlm_intent);
 251 EXPORT_SYMBOL(lustre_swab_ldlm_resource_desc);
 252 EXPORT_SYMBOL(lustre_swab_ldlm_lock_desc);
 253 EXPORT_SYMBOL(lustre_swab_ldlm_request);
 254 EXPORT_SYMBOL(lustre_swab_ldlm_reply);
 255 EXPORT_SYMBOL(lustre_swab_qdata);
 256 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(1, 9, 0, 0)
 257 EXPORT_SYMBOL(lustre_swab_qdata_old2);
 258 #else
 259 #warning "remove quota code above for format absolete in new release"
 260 #endif
 261 EXPORT_SYMBOL(lustre_swab_quota_adjust_qunit);
 262 EXPORT_SYMBOL(lustre_msg_get_flags);
 263 EXPORT_SYMBOL(lustre_msg_add_flags);
 264 EXPORT_SYMBOL(lustre_msg_set_flags);
 265 EXPORT_SYMBOL(lustre_msg_clear_flags);
 266 EXPORT_SYMBOL(lustre_msg_get_op_flags);
 267 EXPORT_SYMBOL(lustre_msg_add_op_flags);
 268 EXPORT_SYMBOL(lustre_msg_set_op_flags);
 269 EXPORT_SYMBOL(lustre_msg_get_handle );
 270 EXPORT_SYMBOL(lustre_msg_get_type);
 271 EXPORT_SYMBOL(lustre_msg_get_version);
 272 EXPORT_SYMBOL(lustre_msg_add_version);
 273 EXPORT_SYMBOL(lustre_msg_get_opc);
 274 EXPORT_SYMBOL(lustre_msg_get_last_xid);
 275 EXPORT_SYMBOL(lustre_msg_get_last_committed);
 276 EXPORT_SYMBOL(lustre_msg_get_versions);
 277 EXPORT_SYMBOL(lustre_msg_get_transno);
 278 EXPORT_SYMBOL(lustre_msg_get_status);
 279 EXPORT_SYMBOL(lustre_msg_get_slv);
 280 EXPORT_SYMBOL(lustre_msg_get_limit);
 281 EXPORT_SYMBOL(lustre_msg_set_slv);
 282 EXPORT_SYMBOL(lustre_msg_set_limit);
 283 EXPORT_SYMBOL(lustre_msg_get_conn_cnt);
 284 EXPORT_SYMBOL(lustre_msg_is_v1);
 285 EXPORT_SYMBOL(lustre_msg_get_magic);
 286 EXPORT_SYMBOL(lustre_msg_set_handle);
 287 EXPORT_SYMBOL(lustre_msg_set_type);
 288 EXPORT_SYMBOL(lustre_msg_set_opc);
 289 EXPORT_SYMBOL(lustre_msg_set_last_xid);
 290 EXPORT_SYMBOL(lustre_msg_set_last_committed);
 291 EXPORT_SYMBOL(lustre_msg_set_versions);
 292 EXPORT_SYMBOL(lustre_msg_set_transno);
 293 EXPORT_SYMBOL(lustre_msg_set_status);
 294 EXPORT_SYMBOL(lustre_msg_set_conn_cnt);
 295 EXPORT_SYMBOL(lustre_swab_mgs_target_info);
 296 EXPORT_SYMBOL(lustre_swab_fiemap);
 297
 298 /* recover.c */
 299 EXPORT_SYMBOL(ptlrpc_disconnect_import);
 300 EXPORT_SYMBOL(ptlrpc_resend);
 301 EXPORT_SYMBOL(ptlrpc_wake_delayed);
 302 EXPORT_SYMBOL(ptlrpc_set_import_active);
 303 EXPORT_SYMBOL(ptlrpc_activate_import);
 304 EXPORT_SYMBOL(ptlrpc_deactivate_import);
 305 EXPORT_SYMBOL(ptlrpc_invalidate_import);
 306 EXPORT_SYMBOL(ptlrpc_fail_import);
 307 EXPORT_SYMBOL(ptlrpc_recover_import);
 308 EXPORT_SYMBOL(ptlrpc_import_setasync);
 309
 310 /* pinger.c */
 311 EXPORT_SYMBOL(ptlrpc_pinger_add_import);
 312 EXPORT_SYMBOL(ptlrpc_pinger_del_import);
 313 EXPORT_SYMBOL(ptlrpc_add_timeout_client);
 314 EXPORT_SYMBOL(ptlrpc_del_timeout_client);
 315 EXPORT_SYMBOL(ptlrpc_pinger_sending_on_import);
 316
 317 /* ptlrpcd.c */
 318 EXPORT_SYMBOL(ptlrpcd_addref);
 319 EXPORT_SYMBOL(ptlrpcd_decref);
 320 EXPORT_SYMBOL(ptlrpcd_add_req);
 321 EXPORT_SYMBOL(ptlrpcd_wake);
 322
 323 /* llogd.c */
 324 EXPORT_SYMBOL(llog_origin_handle_create);
 325 EXPORT_SYMBOL(llog_origin_handle_destroy);
 326 EXPORT_SYMBOL(llog_origin_handle_next_block);
 327 EXPORT_SYMBOL(llog_origin_handle_prev_block);
 328 EXPORT_SYMBOL(llog_origin_handle_read_header);
 329 EXPORT_SYMBOL(llog_origin_handle_close);
 330 EXPORT_SYMBOL(llog_client_ops);
 331 EXPORT_SYMBOL(llog_catinfo);
 332
 333 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
 334 MODULE_DESCRIPTION("Lustre Request Processor and Lock Management");
 335 MODULE_LICENSE("GPL");
 336
 337 cfs_module(ptlrpc, "1.0.0", ptlrpc_init, ptlrpc_exit);
 338 #endif