lnet/selftest/conrpc.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) 2007, 2010, Oracle and/or its affiliates. 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  * lnet/selftest/conctl.c
  37  *
  38  * Console framework rpcs
  39  *
  40  * Author: Liang Zhen <liangzhen@clusterfs.com>
  41  */
  42
  43 #ifdef __KERNEL__
  44
  45 #include <libcfs/libcfs.h>
  46 #include <lnet/lib-lnet.h>
  47 #include "timer.h"
  48 #include "conrpc.h"
  49 #include "console.h"
  50
  51 void lstcon_rpc_stat_reply(int, srpc_msg_t *,
  52                            lstcon_node_t *, lstcon_trans_stat_t *);
  53
  54 static void
  55 lstcon_rpc_done(srpc_client_rpc_t *rpc)
  56 {
  57         lstcon_rpc_t *crpc = (lstcon_rpc_t *)rpc->crpc_priv;
  58
  59         LASSERT (crpc != NULL && rpc == crpc->crp_rpc);
  60         LASSERT (crpc->crp_posted && !crpc->crp_finished);
  61
  62         spin_lock(&rpc->crpc_lock);
  63
  64         if (crpc->crp_trans == NULL) {
  65                 /* Orphan RPC is not in any transaction,
  66                  * I'm just a poor body and nobody loves me */
  67                 spin_unlock(&rpc->crpc_lock);
  68
  69                 /* release it */
  70                 lstcon_rpc_put(crpc);
  71                 return;
  72         }
  73
  74         /* not an orphan RPC */
  75         crpc->crp_finished = 1;
  76
  77         if (crpc->crp_stamp == 0) {
  78                 /* not aborted */
  79                 LASSERT (crpc->crp_status == 0);
  80
  81                 crpc->crp_stamp  = cfs_time_current();
  82                 crpc->crp_status = rpc->crpc_status;
  83         }
  84
  85         /* wakeup (transaction)thread if I'm the last RPC in the transaction */
  86         if (atomic_dec_and_test(&crpc->crp_trans->tas_remaining))
  87                 cfs_waitq_signal(&crpc->crp_trans->tas_waitq);
  88
  89         spin_unlock(&rpc->crpc_lock);
  90 }
  91
  92 int
  93 lstcon_rpc_init(lstcon_node_t *nd, int service,
  94                 int npg, int cached, lstcon_rpc_t *crpc)
  95 {
  96
  97         crpc->crp_rpc = sfw_create_rpc(nd->nd_id, service,
  98                                        npg, npg * CFS_PAGE_SIZE,
  99                                        lstcon_rpc_done, (void *)crpc);
 100         if (crpc->crp_rpc == NULL)
 101                 return -ENOMEM;
 102
 103         crpc->crp_trans    = NULL;
 104         crpc->crp_node     = nd;
 105         crpc->crp_posted   = 0;
 106         crpc->crp_finished = 0;
 107         crpc->crp_unpacked = 0;
 108         crpc->crp_status   = 0;
 109         crpc->crp_stamp    = 0;
 110         crpc->crp_static   = !cached;
 111         CFS_INIT_LIST_HEAD(&crpc->crp_link);
 112
 113         atomic_inc(&console_session.ses_rpc_counter);
 114
 115         return 0;
 116 }
 117
 118 int
 119 lstcon_rpc_prep(lstcon_node_t *nd, int service,
 120                 int npg, lstcon_rpc_t **crpcpp)
 121 {
 122         lstcon_rpc_t  *crpc = NULL;
 123         int            rc;
 124
 125         spin_lock(&console_session.ses_rpc_lock);
 126
 127         if (!list_empty(&console_session.ses_rpc_freelist)) {
 128                 crpc = list_entry(console_session.ses_rpc_freelist.next,
 129                                   lstcon_rpc_t, crp_link);
 130                 list_del_init(&crpc->crp_link);
 131         }
 132
 133         spin_unlock(&console_session.ses_rpc_lock);
 134
 135         if (crpc == NULL) {
 136                 LIBCFS_ALLOC(crpc, sizeof(*crpc));
 137                 if (crpc == NULL)
 138                         return -ENOMEM;
 139         }
 140
 141         rc = lstcon_rpc_init(nd, service, npg, 1, crpc);
 142         if (rc == 0) {
 143                 *crpcpp = crpc;
 144                 return 0;
 145         }
 146
 147         LIBCFS_FREE(crpc, sizeof(*crpc));
 148
 149         return rc;
 150 }
 151
 152 void
 153 lstcon_rpc_put(lstcon_rpc_t *crpc)
 154 {
 155         srpc_bulk_t *bulk = &crpc->crp_rpc->crpc_bulk;
 156         int          i;
 157
 158         LASSERT (list_empty(&crpc->crp_link));
 159
 160         for (i = 0; i < bulk->bk_niov; i++) {
 161                 if (bulk->bk_iovs[i].kiov_page == NULL)
 162                         continue;
 163
 164                 cfs_free_page(bulk->bk_iovs[i].kiov_page);
 165         }
 166
 167         srpc_client_rpc_decref(crpc->crp_rpc);
 168
 169         if (crpc->crp_static) {
 170                 /* Static RPC, not allocated */
 171                 memset(crpc, 0, sizeof(*crpc));
 172                 crpc->crp_static = 1;
 173
 174         } else {
 175                 spin_lock(&console_session.ses_rpc_lock);
 176
 177                 list_add(&crpc->crp_link, &console_session.ses_rpc_freelist);
 178
 179                 spin_unlock(&console_session.ses_rpc_lock);
 180         }
 181
 182         /* RPC is not alive now */
 183         atomic_dec(&console_session.ses_rpc_counter);
 184 }
 185
 186 void
 187 lstcon_rpc_post(lstcon_rpc_t *crpc)
 188 {
 189         lstcon_rpc_trans_t *trans = crpc->crp_trans;
 190
 191         LASSERT (trans != NULL);
 192
 193         atomic_inc(&trans->tas_remaining);
 194         crpc->crp_posted = 1;
 195
 196         sfw_post_rpc(crpc->crp_rpc);
 197 }
 198
 199 static char *
 200 lstcon_rpc_trans_name(int transop)
 201 {
 202         if (transop == LST_TRANS_SESNEW)
 203                 return "SESNEW";
 204
 205         if (transop == LST_TRANS_SESEND)
 206                 return "SESEND";
 207
 208         if (transop == LST_TRANS_SESQRY)
 209                 return "SESQRY";
 210
 211         if (transop == LST_TRANS_SESPING)
 212                 return "SESPING";
 213
 214         if (transop == LST_TRANS_TSBCLIADD)
 215                 return "TSBCLIADD";
 216
 217         if (transop == LST_TRANS_TSBSRVADD)
 218                 return "TSBSRVADD";
 219
 220         if (transop == LST_TRANS_TSBRUN)
 221                 return "TSBRUN";
 222
 223         if (transop == LST_TRANS_TSBSTOP)
 224                 return "TSBSTOP";
 225
 226         if (transop == LST_TRANS_TSBCLIQRY)
 227                 return "TSBCLIQRY";
 228
 229         if (transop == LST_TRANS_TSBSRVQRY)
 230                 return "TSBSRVQRY";
 231
 232         if (transop == LST_TRANS_STATQRY)
 233                 return "STATQRY";
 234
 235         return "Unknown";
 236 }
 237
 238 int
 239 lstcon_rpc_trans_prep(struct list_head *translist,
 240                       int transop, lstcon_rpc_trans_t **transpp)
 241 {
 242         lstcon_rpc_trans_t *trans;
 243
 244         if (translist != NULL) {
 245                 list_for_each_entry(trans, translist, tas_link) {
 246                         /* Can't enqueue two private transaction on
 247                          * the same object */
 248                         if ((trans->tas_opc & transop) == LST_TRANS_PRIVATE)
 249                                 return -EPERM;
 250                 }
 251         }
 252
 253         /* create a trans group */
 254         LIBCFS_ALLOC(trans, sizeof(*trans));
 255         if (trans == NULL)
 256                 return -ENOMEM;
 257
 258         trans->tas_opc = transop;
 259
 260         if (translist == NULL)
 261                 CFS_INIT_LIST_HEAD(&trans->tas_olink);
 262         else
 263                 list_add_tail(&trans->tas_olink, translist);
 264
 265         list_add_tail(&trans->tas_link, &console_session.ses_trans_list);
 266
 267         CFS_INIT_LIST_HEAD(&trans->tas_rpcs_list);
 268         atomic_set(&trans->tas_remaining, 0);
 269         cfs_waitq_init(&trans->tas_waitq);
 270
 271         *transpp = trans;
 272
 273         return 0;
 274 }
 275
 276 void
 277 lstcon_rpc_trans_addreq(lstcon_rpc_trans_t *trans, lstcon_rpc_t *crpc)
 278 {
 279         list_add_tail(&crpc->crp_link, &trans->tas_rpcs_list);
 280         crpc->crp_trans = trans;
 281 }
 282
 283 void
 284 lstcon_rpc_trans_abort(lstcon_rpc_trans_t *trans, int error)
 285 {
 286         srpc_client_rpc_t *rpc;
 287         lstcon_rpc_t      *crpc;
 288         lstcon_node_t     *nd;
 289
 290         list_for_each_entry (crpc, &trans->tas_rpcs_list, crp_link) {
 291                 rpc = crpc->crp_rpc;
 292
 293                 spin_lock(&rpc->crpc_lock);
 294
 295                 if (!crpc->crp_posted || /* not posted */
 296                     crpc->crp_stamp != 0) { /* rpc done or aborted already */
 297                         if (crpc->crp_stamp == 0) {
 298                                 crpc->crp_stamp = cfs_time_current();
 299                                 crpc->crp_status = -EINTR;
 300                         }
 301                         spin_unlock(&rpc->crpc_lock);
 302                         continue;
 303                 }
 304
 305                 crpc->crp_stamp  = cfs_time_current();
 306                 crpc->crp_status = error;
 307
 308                 spin_unlock(&rpc->crpc_lock);
 309
 310                 sfw_abort_rpc(rpc);
 311
 312                 if  (error != ETIMEDOUT)
 313                         continue;
 314
 315                 nd = crpc->crp_node;
 316                 if (cfs_time_after(nd->nd_stamp, crpc->crp_stamp))
 317                         continue;
 318
 319                 nd->nd_stamp = crpc->crp_stamp;
 320                 nd->nd_state = LST_NODE_DOWN;
 321         }
 322 }
 323
 324 static int
 325 lstcon_rpc_trans_check(lstcon_rpc_trans_t *trans)
 326 {
 327         if (console_session.ses_shutdown &&
 328             !list_empty(&trans->tas_olink)) /* It's not an end session RPC */
 329                 return 1;
 330
 331         return (atomic_read(&trans->tas_remaining) == 0) ? 1: 0;
 332 }
 333
 334 int
 335 lstcon_rpc_trans_postwait(lstcon_rpc_trans_t *trans, int timeout)
 336 {
 337         lstcon_rpc_t  *crpc;
 338         int            rc;
 339
 340         if (list_empty(&trans->tas_rpcs_list))
 341                 return 0;
 342
 343         if (timeout < LST_TRANS_MIN_TIMEOUT)
 344                 timeout = LST_TRANS_MIN_TIMEOUT;
 345
 346         CDEBUG(D_NET, "Transaction %s started\n",
 347                lstcon_rpc_trans_name(trans->tas_opc));
 348
 349         /* post all requests */
 350         list_for_each_entry (crpc, &trans->tas_rpcs_list, crp_link) {
 351                 LASSERT (!crpc->crp_posted);
 352
 353                 lstcon_rpc_post(crpc);
 354         }
 355
 356         mutex_up(&console_session.ses_mutex);
 357
 358         rc = cfs_waitq_wait_event_interruptible_timeout(trans->tas_waitq,
 359                                               lstcon_rpc_trans_check(trans),
 360                                               timeout * HZ);
 361
 362         rc = (rc > 0)? 0: ((rc < 0)? -EINTR: -ETIMEDOUT);
 363
 364         mutex_down(&console_session.ses_mutex);
 365
 366         if (console_session.ses_shutdown)
 367                 rc = -ESHUTDOWN;
 368
 369         if (rc != 0 || atomic_read(&trans->tas_remaining) != 0) {
 370                 /* treat short timeout as canceled */
 371                 if (rc == -ETIMEDOUT && timeout < LST_TRANS_MIN_TIMEOUT * 2)
 372                         rc = -EINTR;
 373
 374                 lstcon_rpc_trans_abort(trans, rc);
 375         }
 376
 377         CDEBUG(D_NET, "Transaction %s stopped: %d\n",
 378                lstcon_rpc_trans_name(trans->tas_opc), rc);
 379
 380         lstcon_rpc_trans_stat(trans, lstcon_trans_stat());
 381
 382         return rc;
 383 }
 384
 385 int
 386 lstcon_rpc_get_reply(lstcon_rpc_t *crpc, srpc_msg_t **msgpp)
 387 {
 388         lstcon_node_t        *nd  = crpc->crp_node;
 389         srpc_client_rpc_t    *rpc = crpc->crp_rpc;
 390         srpc_generic_reply_t *rep;
 391
 392         LASSERT (nd != NULL && rpc != NULL);
 393         LASSERT (crpc->crp_stamp != 0);
 394
 395         if (crpc->crp_status != 0) {
 396                 *msgpp = NULL;
 397                 return crpc->crp_status;
 398         }
 399
 400         *msgpp = &rpc->crpc_replymsg;
 401         if (!crpc->crp_unpacked) {
 402                 sfw_unpack_message(*msgpp);
 403                 crpc->crp_unpacked = 1;
 404         }
 405
 406         if (cfs_time_after(nd->nd_stamp, crpc->crp_stamp))
 407                 return 0;
 408
 409         nd->nd_stamp = crpc->crp_stamp;
 410         rep = &(*msgpp)->msg_body.reply;
 411
 412         if (rep->sid.ses_nid == LNET_NID_ANY)
 413                 nd->nd_state = LST_NODE_UNKNOWN;
 414         else if (lstcon_session_match(rep->sid))
 415                 nd->nd_state = LST_NODE_ACTIVE;
 416         else
 417                 nd->nd_state = LST_NODE_BUSY;
 418
 419         return 0;
 420 }
 421
 422 void
 423 lstcon_rpc_trans_stat(lstcon_rpc_trans_t *trans, lstcon_trans_stat_t *stat)
 424 {
 425         lstcon_rpc_t      *crpc;
 426         srpc_client_rpc_t *rpc;
 427         srpc_msg_t        *rep;
 428         int                error;
 429
 430         LASSERT (stat != NULL);
 431
 432         memset(stat, 0, sizeof(*stat));
 433
 434         list_for_each_entry(crpc, &trans->tas_rpcs_list, crp_link) {
 435                 lstcon_rpc_stat_total(stat, 1);
 436
 437                 rpc = crpc->crp_rpc;
 438
 439                 LASSERT (crpc->crp_stamp != 0);
 440
 441                 error = lstcon_rpc_get_reply(crpc, &rep);
 442                 if (error != 0) {
 443                         lstcon_rpc_stat_failure(stat, 1);
 444                         if (stat->trs_rpc_errno == 0)
 445                                 stat->trs_rpc_errno = -error;
 446
 447                         continue;
 448                 }
 449
 450                 lstcon_rpc_stat_success(stat, 1);
 451
 452                 lstcon_rpc_stat_reply(trans->tas_opc, rep,
 453                                       crpc->crp_node, stat);
 454         }
 455
 456         CDEBUG(D_NET, "transaction %s : success %d, failure %d, total %d, "
 457                       "RPC error(%d), Framework error(%d)\n",
 458                lstcon_rpc_trans_name(trans->tas_opc),
 459                lstcon_rpc_stat_success(stat, 0),
 460                lstcon_rpc_stat_failure(stat, 0),
 461                lstcon_rpc_stat_total(stat, 0),
 462                stat->trs_rpc_errno, stat->trs_fwk_errno);
 463
 464         return;
 465 }
 466
 467 int
 468 lstcon_rpc_trans_interpreter(lstcon_rpc_trans_t *trans,
 469                              struct list_head *head_up,
 470                              lstcon_rpc_readent_func_t readent)
 471 {
 472         struct list_head      tmp;
 473         struct list_head     *next;
 474         lstcon_rpc_ent_t     *ent;
 475         srpc_generic_reply_t *rep;
 476         srpc_client_rpc_t    *rpc;
 477         lstcon_rpc_t         *crpc;
 478         srpc_msg_t           *msg;
 479         lstcon_node_t        *nd;
 480         cfs_duration_t        dur;
 481         struct timeval        tv;
 482         int                   error;
 483
 484         LASSERT (head_up != NULL);
 485
 486         next = head_up;
 487
 488         list_for_each_entry(crpc, &trans->tas_rpcs_list, crp_link) {
 489                 if (copy_from_user(&tmp, next, sizeof(struct list_head)))
 490                         return -EFAULT;
 491
 492                 if (tmp.next == head_up)
 493                         return 0;
 494
 495                 next = tmp.next;
 496
 497                 ent = list_entry(next, lstcon_rpc_ent_t, rpe_link);
 498
 499                 rpc = crpc->crp_rpc;
 500
 501                 LASSERT (crpc->crp_stamp != 0);
 502
 503                 error = lstcon_rpc_get_reply(crpc, &msg);
 504
 505                 nd = crpc->crp_node;
 506
 507                 dur = cfs_time_sub(crpc->crp_stamp,
 508                                    console_session.ses_id.ses_stamp);
 509                 cfs_duration_usec(dur, &tv);
 510
 511                 if (copy_to_user(&ent->rpe_peer,
 512                                  &nd->nd_id, sizeof(lnet_process_id_t)) ||
 513                     copy_to_user(&ent->rpe_stamp, &tv, sizeof(tv)) ||
 514                     copy_to_user(&ent->rpe_state,
 515                                  &nd->nd_state, sizeof(nd->nd_state)) ||
 516                     copy_to_user(&ent->rpe_rpc_errno, &error, sizeof(error)))
 517                         return -EFAULT;
 518
 519                 if (error != 0)
 520                         continue;
 521
 522                 /* RPC is done */
 523                 rep = (srpc_generic_reply_t *)&msg->msg_body.reply;
 524
 525                 if (copy_to_user(&ent->rpe_sid,
 526                                  &rep->sid, sizeof(lst_sid_t)) ||
 527                     copy_to_user(&ent->rpe_fwk_errno,
 528                                  &rep->status, sizeof(rep->status)))
 529                         return -EFAULT;
 530
 531                 if (readent == NULL)
 532                         continue;
 533
 534                 if ((error = readent(trans->tas_opc, msg, ent)) != 0)
 535                         return error;
 536         }
 537
 538         return 0;
 539 }
 540
 541 void
 542 lstcon_rpc_trans_destroy(lstcon_rpc_trans_t *trans)
 543 {
 544         srpc_client_rpc_t *rpc;
 545         lstcon_rpc_t      *crpc;
 546         lstcon_rpc_t      *tmp;
 547         int                count = 0;
 548
 549         list_for_each_entry_safe(crpc, tmp,
 550                                  &trans->tas_rpcs_list, crp_link) {
 551                 rpc = crpc->crp_rpc;
 552
 553                 spin_lock(&rpc->crpc_lock);
 554
 555                 /* free it if not posted or finished already */
 556                 if (!crpc->crp_posted || crpc->crp_finished) {
 557                         spin_unlock(&rpc->crpc_lock);
 558
 559                         list_del_init(&crpc->crp_link);
 560                         lstcon_rpc_put(crpc);
 561
 562                         continue;
 563                 }
 564
 565                 /* rpcs can be still not callbacked (even LNetMDUnlink is called)
 566                  * because huge timeout for inaccessible network, don't make
 567                  * user wait for them, just abandon them, they will be recycled
 568                  * in callback */
 569
 570                 LASSERT (crpc->crp_status != 0);
 571
 572                 crpc->crp_node  = NULL;
 573                 crpc->crp_trans = NULL;
 574                 list_del_init(&crpc->crp_link);
 575                 count ++;
 576
 577                 spin_unlock(&rpc->crpc_lock);
 578
 579                 atomic_dec(&trans->tas_remaining);
 580         }
 581
 582         LASSERT (atomic_read(&trans->tas_remaining) == 0);
 583
 584         list_del(&trans->tas_link);
 585         if (!list_empty(&trans->tas_olink))
 586                 list_del(&trans->tas_olink);
 587
 588         CDEBUG(D_NET, "Transaction %s destroyed with %d pending RPCs\n",
 589                lstcon_rpc_trans_name(trans->tas_opc), count);
 590
 591         LIBCFS_FREE(trans, sizeof(*trans));
 592
 593         return;
 594 }
 595
 596 int
 597 lstcon_sesrpc_prep(lstcon_node_t *nd, int transop, lstcon_rpc_t **crpc)
 598 {
 599         srpc_mksn_reqst_t *msrq;
 600         srpc_rmsn_reqst_t *rsrq;
 601         int                rc;
 602
 603         switch (transop) {
 604         case LST_TRANS_SESNEW:
 605                 rc = lstcon_rpc_prep(nd, SRPC_SERVICE_MAKE_SESSION, 0, crpc);
 606                 if (rc != 0)
 607                         return rc;
 608
 609                 msrq = &(*crpc)->crp_rpc->crpc_reqstmsg.msg_body.mksn_reqst;
 610                 msrq->mksn_sid     = console_session.ses_id;
 611                 msrq->mksn_force   = console_session.ses_force;
 612                 strncpy(msrq->mksn_name, console_session.ses_name,
 613                         strlen(console_session.ses_name));
 614                 break;
 615
 616         case LST_TRANS_SESEND:
 617                 rc = lstcon_rpc_prep(nd, SRPC_SERVICE_REMOVE_SESSION, 0, crpc);
 618                 if (rc != 0)
 619                         return rc;
 620
 621                 rsrq = &(*crpc)->crp_rpc->crpc_reqstmsg.msg_body.rmsn_reqst;
 622                 rsrq->rmsn_sid = console_session.ses_id;
 623                 break;
 624
 625         default:
 626                 LBUG();
 627         }
 628
 629         return 0;
 630 }
 631
 632 int
 633 lstcon_dbgrpc_prep(lstcon_node_t *nd, lstcon_rpc_t **crpc)
 634 {
 635         srpc_debug_reqst_t *drq;
 636         int                 rc;
 637
 638         rc = lstcon_rpc_prep(nd, SRPC_SERVICE_DEBUG, 0, crpc);
 639         if (rc != 0)
 640                 return rc;
 641
 642         drq = &(*crpc)->crp_rpc->crpc_reqstmsg.msg_body.dbg_reqst;
 643
 644         drq->dbg_sid   = console_session.ses_id;
 645         drq->dbg_flags = 0;
 646
 647         return rc;
 648 }
 649
 650 int
 651 lstcon_batrpc_prep(lstcon_node_t *nd, int transop,
 652                    lstcon_tsb_hdr_t *tsb, lstcon_rpc_t **crpc)
 653 {
 654         lstcon_batch_t     *batch;
 655         srpc_batch_reqst_t *brq;
 656         int                 rc;
 657
 658         rc = lstcon_rpc_prep(nd, SRPC_SERVICE_BATCH, 0, crpc);
 659         if (rc != 0)
 660                 return rc;
 661
 662         brq = &(*crpc)->crp_rpc->crpc_reqstmsg.msg_body.bat_reqst;
 663
 664         brq->bar_sid     = console_session.ses_id;
 665         brq->bar_bid     = tsb->tsb_id;
 666         brq->bar_testidx = tsb->tsb_index;
 667         brq->bar_opc     = transop == LST_TRANS_TSBRUN ? SRPC_BATCH_OPC_RUN :
 668                            (transop == LST_TRANS_TSBSTOP ? SRPC_BATCH_OPC_STOP:
 669                             SRPC_BATCH_OPC_QUERY);
 670
 671         if (transop != LST_TRANS_TSBRUN &&
 672             transop != LST_TRANS_TSBSTOP)
 673                 return 0;
 674
 675         LASSERT (tsb->tsb_index == 0);
 676
 677         batch = (lstcon_batch_t *)tsb;
 678         brq->bar_arg = batch->bat_arg;
 679
 680         return 0;
 681 }
 682
 683 int
 684 lstcon_statrpc_prep(lstcon_node_t *nd, lstcon_rpc_t **crpc)
 685 {
 686         srpc_stat_reqst_t *srq;
 687         int                rc;
 688
 689         rc = lstcon_rpc_prep(nd, SRPC_SERVICE_QUERY_STAT, 0, crpc);
 690         if (rc != 0)
 691                 return rc;
 692
 693         srq = &(*crpc)->crp_rpc->crpc_reqstmsg.msg_body.stat_reqst;
 694
 695         srq->str_sid  = console_session.ses_id;
 696         srq->str_type = 0; /* XXX remove it */
 697
 698         return 0;
 699 }
 700
 701 lnet_process_id_packed_t *
 702 lstcon_next_id(int idx, int nkiov, lnet_kiov_t *kiov)
 703 {
 704         lnet_process_id_packed_t *pid;
 705         int                       i;
 706
 707         i = idx / SFW_ID_PER_PAGE;
 708
 709         LASSERT (i < nkiov);
 710
 711         pid = (lnet_process_id_packed_t *)cfs_page_address(kiov[i].kiov_page);
 712
 713         return &pid[idx % SFW_ID_PER_PAGE];
 714 }
 715
 716 int
 717 lstcon_dstnodes_prep(lstcon_group_t *grp, int idx,
 718                      int dist, int span, int nkiov, lnet_kiov_t *kiov)
 719 {
 720         lnet_process_id_packed_t *pid;
 721         lstcon_ndlink_t          *ndl;
 722         lstcon_node_t            *nd;
 723         int                       start;
 724         int                       end;
 725         int                       i = 0;
 726
 727         LASSERT (dist >= 1);
 728         LASSERT (span >= 1);
 729         LASSERT (grp->grp_nnode >= 1);
 730
 731         if (span > grp->grp_nnode)
 732                 return -EINVAL;
 733
 734         start = ((idx / dist) * span) % grp->grp_nnode;
 735         end   = ((idx / dist) * span + span - 1) % grp->grp_nnode;
 736
 737         list_for_each_entry(ndl, &grp->grp_ndl_list, ndl_link) {
 738                 nd = ndl->ndl_node;
 739                 if (i < start) {
 740                         i ++;
 741                         continue;
 742                 }
 743
 744                 if (i > (end >= start ? end: grp->grp_nnode))
 745                         break;
 746
 747                 pid = lstcon_next_id((i - start), nkiov, kiov);
 748                 pid->nid = nd->nd_id.nid;
 749                 pid->pid = nd->nd_id.pid;
 750                 i++;
 751         }
 752
 753         if (start <= end) /* done */
 754                 return 0;
 755
 756         list_for_each_entry(ndl, &grp->grp_ndl_list, ndl_link) {
 757                 if (i > grp->grp_nnode + end)
 758                         break;
 759
 760                 nd = ndl->ndl_node;
 761                 pid = lstcon_next_id((i - start), nkiov, kiov);
 762                 pid->nid = nd->nd_id.nid;
 763                 pid->pid = nd->nd_id.pid;
 764                 i++;
 765         }
 766
 767         return 0;
 768 }
 769
 770 int
 771 lstcon_pingrpc_prep(lst_test_ping_param_t *param, srpc_test_reqst_t *req)
 772 {
 773         test_ping_req_t *prq = &req->tsr_u.ping;
 774
 775         prq->png_size   = param->png_size;
 776         prq->png_flags  = param->png_flags;
 777         /* TODO dest */
 778         return 0;
 779 }
 780
 781 int
 782 lstcon_bulkrpc_prep(lst_test_bulk_param_t *param, srpc_test_reqst_t *req)
 783 {
 784         test_bulk_req_t *brq = &req->tsr_u.bulk;
 785
 786         brq->blk_opc    = param->blk_opc;
 787         brq->blk_npg    = (param->blk_size + CFS_PAGE_SIZE - 1) / CFS_PAGE_SIZE;
 788         brq->blk_flags  = param->blk_flags;
 789
 790         return 0;
 791 }
 792
 793 int
 794 lstcon_testrpc_prep(lstcon_node_t *nd, int transop,
 795                     lstcon_test_t *test, lstcon_rpc_t **crpc)
 796 {
 797         lstcon_group_t    *sgrp = test->tes_src_grp;
 798         lstcon_group_t    *dgrp = test->tes_dst_grp;
 799         srpc_test_reqst_t *trq;
 800         srpc_bulk_t       *bulk;
 801         int                i;
 802         int                n  = 0;
 803         int                rc = 0;
 804
 805         if (transop == LST_TRANS_TSBCLIADD)
 806                 n = sfw_id_pages(test->tes_span);
 807
 808         rc = lstcon_rpc_prep(nd, SRPC_SERVICE_TEST, n, crpc);
 809         if (rc != 0)
 810                 return rc;
 811
 812         trq  = &(*crpc)->crp_rpc->crpc_reqstmsg.msg_body.tes_reqst;
 813
 814         if (transop == LST_TRANS_TSBSRVADD) {
 815                 int ndist = (sgrp->grp_nnode + test->tes_dist - 1) / test->tes_dist;
 816                 int nspan = (dgrp->grp_nnode + test->tes_span - 1) / test->tes_span;
 817                 int nmax = (ndist + nspan - 1) / nspan;
 818
 819                 trq->tsr_ndest = 0;
 820                 trq->tsr_loop  = nmax * test->tes_dist * test->tes_concur;
 821
 822         } else {
 823                 bulk = &(*crpc)->crp_rpc->crpc_bulk;
 824
 825                 for (i = 0; i < n; i++) {
 826                         bulk->bk_iovs[i].kiov_offset = 0;
 827                         bulk->bk_iovs[i].kiov_len    = CFS_PAGE_SIZE;
 828                         bulk->bk_iovs[i].kiov_page   = cfs_alloc_page(CFS_ALLOC_STD);
 829
 830                         if (bulk->bk_iovs[i].kiov_page != NULL)
 831                                 continue;
 832
 833                         lstcon_rpc_put(*crpc);
 834                         return -ENOMEM;
 835                 }
 836
 837                 bulk->bk_sink = 0;
 838
 839                 LASSERT (transop == LST_TRANS_TSBCLIADD);
 840
 841                 rc = lstcon_dstnodes_prep(test->tes_dst_grp,
 842                                           test->tes_cliidx++, test->tes_dist,
 843                                           test->tes_span, n, &bulk->bk_iovs[0]);
 844                 if (rc != 0) {
 845                         lstcon_rpc_put(*crpc);
 846                         return rc;
 847                 }
 848
 849                 trq->tsr_ndest = test->tes_span;
 850                 trq->tsr_loop  = test->tes_loop;
 851         }
 852
 853         trq->tsr_sid        = console_session.ses_id;
 854         trq->tsr_bid        = test->tes_hdr.tsb_id;
 855         trq->tsr_concur     = test->tes_concur;
 856         trq->tsr_is_client  = (transop == LST_TRANS_TSBCLIADD) ? 1 : 0;
 857         trq->tsr_stop_onerr = test->tes_stop_onerr;
 858
 859         switch (test->tes_type) {
 860         case LST_TEST_PING:
 861                 trq->tsr_service = SRPC_SERVICE_PING;
 862                 rc = lstcon_pingrpc_prep((lst_test_ping_param_t *)&test->tes_param[0], trq);
 863                 break;
 864         case LST_TEST_BULK:
 865                 trq->tsr_service = SRPC_SERVICE_BRW;
 866                 rc = lstcon_bulkrpc_prep((lst_test_bulk_param_t *)&test->tes_param[0], trq);
 867                 break;
 868         default:
 869                 LBUG();
 870                 break;
 871         }
 872
 873         return rc;
 874 }
 875
 876 void
 877 lstcon_rpc_stat_reply(int transop, srpc_msg_t *msg,
 878                       lstcon_node_t *nd, lstcon_trans_stat_t *stat)
 879 {
 880         srpc_mksn_reply_t  *mksn_rep;
 881         srpc_rmsn_reply_t  *rmsn_rep;
 882         srpc_debug_reply_t *dbg_rep;
 883         srpc_batch_reply_t *bat_rep;
 884         srpc_test_reply_t  *test_rep;
 885         srpc_stat_reply_t  *stat_rep;
 886         int                 errno = 0;
 887
 888         switch (transop) {
 889         case LST_TRANS_SESNEW:
 890                 mksn_rep = &msg->msg_body.mksn_reply;
 891
 892                 if (mksn_rep->mksn_status == 0) {
 893                         lstcon_sesop_stat_success(stat, 1);
 894                         /* session timeout on remote node */
 895                         nd->nd_timeout = mksn_rep->mksn_timeout;
 896                         return;
 897                 }
 898
 899                 LASSERT (mksn_rep->mksn_status == EBUSY ||
 900                          mksn_rep->mksn_status == EINVAL);
 901
 902                 lstcon_sesop_stat_failure(stat, 1);
 903                 errno = mksn_rep->mksn_status;
 904                 break;
 905
 906         case LST_TRANS_SESEND:
 907                 rmsn_rep = &msg->msg_body.rmsn_reply;
 908                 /* ESRCH is not an error for end session */
 909                 if (rmsn_rep->rmsn_status == 0 ||
 910                     rmsn_rep->rmsn_status == ESRCH) {
 911                         lstcon_sesop_stat_success(stat, 1);
 912                         return;
 913                 }
 914
 915                 LASSERT (rmsn_rep->rmsn_status == EBUSY ||
 916                          rmsn_rep->rmsn_status == EINVAL);
 917
 918                 lstcon_sesop_stat_failure(stat, 1);
 919                 errno = rmsn_rep->rmsn_status;
 920                 break;
 921
 922         case LST_TRANS_SESQRY:
 923         case LST_TRANS_SESPING:
 924                 dbg_rep = &msg->msg_body.dbg_reply;
 925
 926                 if (dbg_rep->dbg_status == ESRCH) {
 927                         lstcon_sesqry_stat_unknown(stat, 1);
 928                         return;
 929                 }
 930
 931                 LASSERT (dbg_rep->dbg_status == 0);
 932
 933                 if (lstcon_session_match(dbg_rep->dbg_sid))
 934                         lstcon_sesqry_stat_active(stat, 1);
 935                 else
 936                         lstcon_sesqry_stat_busy(stat, 1);
 937                 return;
 938
 939         case LST_TRANS_TSBRUN:
 940         case LST_TRANS_TSBSTOP:
 941                 bat_rep = &msg->msg_body.bat_reply;
 942
 943                 if (bat_rep->bar_status == 0) {
 944                         lstcon_tsbop_stat_success(stat, 1);
 945                         return;
 946                 }
 947
 948                 if (bat_rep->bar_status == EPERM &&
 949                     transop == LST_TRANS_TSBSTOP) {
 950                         lstcon_tsbop_stat_success(stat, 1);
 951                         return;
 952                 }
 953
 954                 lstcon_tsbop_stat_failure(stat, 1);
 955                 errno = bat_rep->bar_status;
 956                 break;
 957
 958         case LST_TRANS_TSBCLIQRY:
 959         case LST_TRANS_TSBSRVQRY:
 960                 bat_rep = &msg->msg_body.bat_reply;
 961
 962                 if (bat_rep->bar_active != 0)
 963                         lstcon_tsbqry_stat_run(stat, 1);
 964                 else
 965                         lstcon_tsbqry_stat_idle(stat, 1);
 966
 967                 if (bat_rep->bar_status == 0)
 968                         return;
 969
 970                 lstcon_tsbqry_stat_failure(stat, 1);
 971                 errno = bat_rep->bar_status;
 972                 break;
 973
 974         case LST_TRANS_TSBCLIADD:
 975         case LST_TRANS_TSBSRVADD:
 976                 test_rep = &msg->msg_body.tes_reply;
 977
 978                 if (test_rep->tsr_status == 0) {
 979                         lstcon_tsbop_stat_success(stat, 1);
 980                         return;
 981                 }
 982
 983                 lstcon_tsbop_stat_failure(stat, 1);
 984                 errno = test_rep->tsr_status;
 985                 break;
 986
 987         case LST_TRANS_STATQRY:
 988                 stat_rep = &msg->msg_body.stat_reply;
 989
 990                 if (stat_rep->str_status == 0) {
 991                         lstcon_statqry_stat_success(stat, 1);
 992                         return;
 993                 }
 994
 995                 lstcon_statqry_stat_failure(stat, 1);
 996                 errno = stat_rep->str_status;
 997                 break;
 998
 999         default:
1000                 LBUG();
1001         }
1002
1003         if (stat->trs_fwk_errno == 0)
1004                 stat->trs_fwk_errno = errno;
1005
1006         return;
1007 }
1008
1009 int
1010 lstcon_rpc_trans_ndlist(struct list_head *ndlist,
1011                         struct list_head *translist, int transop,
1012                         void *arg, lstcon_rpc_cond_func_t condition,
1013                         lstcon_rpc_trans_t **transpp)
1014 {
1015         lstcon_rpc_trans_t *trans;
1016         lstcon_ndlink_t    *ndl;
1017         lstcon_node_t      *nd;
1018         lstcon_rpc_t       *rpc;
1019         int                 rc;
1020
1021         /* Creating session RPG for list of nodes */
1022
1023         rc = lstcon_rpc_trans_prep(translist, transop, &trans);
1024         if (rc != 0) {
1025                 CERROR("Can't create transaction %d: %d\n", transop, rc);
1026                 return rc;
1027         }
1028
1029         list_for_each_entry(ndl, ndlist, ndl_link) {
1030                 rc = condition == NULL ? 1 :
1031                      condition(transop, ndl->ndl_node, arg);
1032
1033                 if (rc == 0)
1034                         continue;
1035
1036                 if (rc < 0) {
1037                         CDEBUG(D_NET, "Condition error while creating RPC "
1038                                       " for transaction %d: %d\n", transop, rc);
1039                         break;
1040                 }
1041
1042                 nd = ndl->ndl_node;
1043
1044                 switch (transop) {
1045                 case LST_TRANS_SESNEW:
1046                 case LST_TRANS_SESEND:
1047                         rc = lstcon_sesrpc_prep(nd, transop, &rpc);
1048                         break;
1049                 case LST_TRANS_SESQRY:
1050                 case LST_TRANS_SESPING:
1051                         rc = lstcon_dbgrpc_prep(nd, &rpc);
1052                         break;
1053                 case LST_TRANS_TSBCLIADD:
1054                 case LST_TRANS_TSBSRVADD:
1055                         rc = lstcon_testrpc_prep(nd, transop,
1056                                                  (lstcon_test_t *)arg, &rpc);
1057                         break;
1058                 case LST_TRANS_TSBRUN:
1059                 case LST_TRANS_TSBSTOP:
1060                 case LST_TRANS_TSBCLIQRY:
1061                 case LST_TRANS_TSBSRVQRY:
1062                         rc = lstcon_batrpc_prep(nd, transop,
1063                                                 (lstcon_tsb_hdr_t *)arg, &rpc);
1064                         break;
1065                 case LST_TRANS_STATQRY:
1066                         rc = lstcon_statrpc_prep(nd, &rpc);
1067                         break;
1068                 default:
1069                         rc = -EINVAL;
1070                         break;
1071                 }
1072
1073                 if (rc != 0) {
1074                         CERROR("Failed to create RPC for transaction %s: %d\n",
1075                                lstcon_rpc_trans_name(transop), rc);
1076                         break;
1077                 }
1078
1079                 lstcon_rpc_trans_addreq(trans, rpc);
1080         }
1081
1082         if (rc == 0) {
1083                 *transpp = trans;
1084                 return 0;
1085         }
1086
1087         lstcon_rpc_trans_destroy(trans);
1088
1089         return rc;
1090 }
1091
1092 void
1093 lstcon_rpc_pinger(void *arg)
1094 {
1095         stt_timer_t        *ptimer = (stt_timer_t *)arg;
1096         lstcon_rpc_trans_t *trans;
1097         lstcon_rpc_t       *crpc;
1098         srpc_msg_t         *rep;
1099         srpc_debug_reqst_t *drq;
1100         lstcon_ndlink_t    *ndl;
1101         lstcon_node_t      *nd;
1102         time_t              intv;
1103         int                 count = 0;
1104         int                 rc;
1105
1106         /* RPC pinger is a special case of transaction,
1107          * it's called by timer at 8 seconds interval.
1108          */
1109         mutex_down(&console_session.ses_mutex);
1110
1111         if (console_session.ses_shutdown || console_session.ses_expired) {
1112                 mutex_up(&console_session.ses_mutex);
1113                 return;
1114         }
1115
1116         if (!console_session.ses_expired &&
1117             cfs_time_current_sec() - console_session.ses_laststamp >
1118             console_session.ses_timeout)
1119                 console_session.ses_expired = 1;
1120
1121         trans = console_session.ses_ping;
1122
1123         LASSERT (trans != NULL);
1124
1125         list_for_each_entry(ndl, &console_session.ses_ndl_list, ndl_link) {
1126                 nd = ndl->ndl_node;
1127
1128                 if (console_session.ses_expired) {
1129                         /* idle console, end session on all nodes */
1130                         if (nd->nd_state != LST_NODE_ACTIVE)
1131                                 continue;
1132
1133                         rc = lstcon_sesrpc_prep(nd, LST_TRANS_SESEND, &crpc);
1134                         if (rc != 0) {
1135                                 CERROR("Out of memory\n");
1136                                 break;
1137                         }
1138
1139                         lstcon_rpc_trans_addreq(trans, crpc);
1140                         lstcon_rpc_post(crpc);
1141
1142                         continue;
1143                 }
1144
1145                 crpc = &nd->nd_ping;
1146
1147                 if (crpc->crp_rpc != NULL) {
1148                         LASSERT (crpc->crp_trans == trans);
1149                         LASSERT (!list_empty(&crpc->crp_link));
1150
1151                         spin_lock(&crpc->crp_rpc->crpc_lock);
1152
1153                         LASSERT (crpc->crp_posted);
1154
1155                         if (!crpc->crp_finished) {
1156                                 /* in flight */
1157                                 spin_unlock(&crpc->crp_rpc->crpc_lock);
1158                                 continue;
1159                         }
1160
1161                         spin_unlock(&crpc->crp_rpc->crpc_lock);
1162
1163                         lstcon_rpc_get_reply(crpc, &rep);
1164
1165                         list_del_init(&crpc->crp_link);
1166
1167                         lstcon_rpc_put(crpc);
1168                 }
1169
1170                 if (nd->nd_state != LST_NODE_ACTIVE)
1171                         continue;
1172
1173                 intv = cfs_duration_sec(cfs_time_sub(cfs_time_current(),
1174                                                      nd->nd_stamp));
1175                 if (intv < nd->nd_timeout / 2)
1176                         continue;
1177
1178                 rc = lstcon_rpc_init(nd, SRPC_SERVICE_DEBUG, 0, 0, crpc);
1179                 if (rc != 0) {
1180                         CERROR("Out of memory\n");
1181                         break;
1182                 }
1183
1184                 drq = &crpc->crp_rpc->crpc_reqstmsg.msg_body.dbg_reqst;
1185
1186                 drq->dbg_sid   = console_session.ses_id;
1187                 drq->dbg_flags = 0;
1188
1189                 lstcon_rpc_trans_addreq(trans, crpc);
1190                 lstcon_rpc_post(crpc);
1191
1192                 count ++;
1193         }
1194
1195         if (console_session.ses_expired) {
1196                 mutex_up(&console_session.ses_mutex);
1197                 return;
1198         }
1199
1200         CDEBUG(D_NET, "Ping %d nodes in session\n", count);
1201
1202         ptimer->stt_expires = cfs_time_current_sec() + LST_PING_INTERVAL;
1203         stt_add_timer(ptimer);
1204
1205         mutex_up(&console_session.ses_mutex);
1206 }
1207
1208 int
1209 lstcon_rpc_pinger_start(void)
1210 {
1211         stt_timer_t    *ptimer;
1212         int             rc;
1213
1214         LASSERT (list_empty(&console_session.ses_rpc_freelist));
1215         LASSERT (atomic_read(&console_session.ses_rpc_counter) == 0);
1216
1217         rc = lstcon_rpc_trans_prep(NULL, LST_TRANS_SESPING,
1218                                    &console_session.ses_ping);
1219         if (rc != 0) {
1220                 CERROR("Failed to create console pinger\n");
1221                 return rc;
1222         }
1223
1224         ptimer = &console_session.ses_ping_timer;
1225         ptimer->stt_expires = cfs_time_current_sec() + LST_PING_INTERVAL;
1226
1227         stt_add_timer(ptimer);
1228
1229         return 0;
1230 }
1231
1232 void
1233 lstcon_rpc_pinger_stop(void)
1234 {
1235         LASSERT (console_session.ses_shutdown);
1236
1237         stt_del_timer(&console_session.ses_ping_timer);
1238
1239         lstcon_rpc_trans_abort(console_session.ses_ping, -ESHUTDOWN);
1240         lstcon_rpc_trans_stat(console_session.ses_ping, lstcon_trans_stat());
1241         lstcon_rpc_trans_destroy(console_session.ses_ping);
1242
1243         memset(lstcon_trans_stat(), 0, sizeof(lstcon_trans_stat_t));
1244
1245         console_session.ses_ping = NULL;
1246 }
1247
1248 void
1249 lstcon_rpc_cleanup_wait(void)
1250 {
1251         lstcon_rpc_trans_t *trans;
1252         lstcon_rpc_t       *crpc;
1253         struct list_head   *pacer;
1254         struct list_head    zlist;
1255
1256         /* Called with hold of global mutex */
1257
1258         LASSERT (console_session.ses_shutdown);
1259
1260         while (!list_empty(&console_session.ses_trans_list)) {
1261                 list_for_each(pacer, &console_session.ses_trans_list) {
1262                         trans = list_entry(pacer, lstcon_rpc_trans_t, tas_link);
1263
1264                         CDEBUG(D_NET, "Session closed, wakeup transaction %s\n",
1265                                lstcon_rpc_trans_name(trans->tas_opc));
1266
1267                         cfs_waitq_signal(&trans->tas_waitq);
1268                 }
1269
1270                 mutex_up(&console_session.ses_mutex);
1271
1272                 CWARN("Session is shutting down, "
1273                       "waiting for termination of transactions\n");
1274                 cfs_pause(cfs_time_seconds(1));
1275
1276                 mutex_down(&console_session.ses_mutex);
1277         }
1278
1279         spin_lock(&console_session.ses_rpc_lock);
1280
1281         lst_wait_until((atomic_read(&console_session.ses_rpc_counter) == 0),
1282                        console_session.ses_rpc_lock,
1283                        "Network is not accessable or target is down, "
1284                        "waiting for %d console RPCs to being recycled\n",
1285                        atomic_read(&console_session.ses_rpc_counter));
1286
1287         list_add(&zlist, &console_session.ses_rpc_freelist);
1288         list_del_init(&console_session.ses_rpc_freelist);
1289
1290         spin_unlock(&console_session.ses_rpc_lock);
1291
1292         while (!list_empty(&zlist)) {
1293                 crpc = list_entry(zlist.next, lstcon_rpc_t, crp_link);
1294
1295                 list_del(&crpc->crp_link);
1296                 LIBCFS_FREE(crpc, sizeof(lstcon_rpc_t));
1297         }
1298 }
1299
1300 int
1301 lstcon_rpc_module_init(void)
1302 {
1303         CFS_INIT_LIST_HEAD(&console_session.ses_ping_timer.stt_list);
1304         console_session.ses_ping_timer.stt_func = lstcon_rpc_pinger;
1305         console_session.ses_ping_timer.stt_data = &console_session.ses_ping_timer;
1306
1307         console_session.ses_ping = NULL;
1308
1309         spin_lock_init(&console_session.ses_rpc_lock);
1310         atomic_set(&console_session.ses_rpc_counter, 0);
1311         CFS_INIT_LIST_HEAD(&console_session.ses_rpc_freelist);
1312
1313         return 0;
1314 }
1315
1316 void
1317 lstcon_rpc_module_fini(void)
1318 {
1319         LASSERT (list_empty(&console_session.ses_rpc_freelist));
1320         LASSERT (atomic_read(&console_session.ses_rpc_counter) == 0);
1321 }
1322
1323 #endif