lnet/selftest/framework.c

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  *
   4  * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
   5  *   Authors: Isaac Huang <isaac@clusterfs.com>
   6  *            Liang Zhen  <liangzhen@clusterfs.com>
   7  */
   8
   9 #define DEBUG_SUBSYSTEM S_LNET
  10
  11 #include "selftest.h"
  12
  13 int brw_inject_errors = 0;
  14 CFS_MODULE_PARM(brw_inject_errors, "i", int, 0644,
  15                 "# data errors to inject randomly, zero by default");
  16
  17 static int session_timeout = 100;
  18 CFS_MODULE_PARM(session_timeout, "i", int, 0444,
  19                 "test session timeout in seconds (100 by default, 0 == never)");
  20
  21 #define SFW_TEST_CONCURRENCY     128
  22 #define SFW_TEST_RPC_TIMEOUT     64
  23 #define SFW_CLIENT_RPC_TIMEOUT   64  /* in seconds */
  24 #define SFW_EXTRA_TEST_BUFFERS   8 /* tolerate buggy peers with extra buffers */
  25
  26 #define sfw_test_buffers(tsi)    ((tsi)->tsi_loop + SFW_EXTRA_TEST_BUFFERS)
  27
  28 #define sfw_unpack_id(id)               \
  29 do {                                    \
  30         __swab64s(&(id).nid);           \
  31         __swab32s(&(id).pid);           \
  32 } while (0)
  33
  34 #define sfw_unpack_sid(sid)             \
  35 do {                                    \
  36         __swab64s(&(sid).ses_nid);      \
  37         __swab64s(&(sid).ses_stamp);    \
  38 } while (0)
  39
  40 #define sfw_unpack_fw_counters(fc)        \
  41 do {                                      \
  42         __swab32s(&(fc).brw_errors);      \
  43         __swab32s(&(fc).ping_errors);     \
  44         __swab32s(&(fc).active_tests);    \
  45         __swab32s(&(fc).active_batches);  \
  46         __swab32s(&(fc).zombie_sessions); \
  47 } while (0)
  48
  49 #define sfw_unpack_rpc_counters(rc)     \
  50 do {                                    \
  51         __swab32s(&(rc).errors);        \
  52         __swab32s(&(rc).rpcs_sent);     \
  53         __swab32s(&(rc).rpcs_rcvd);     \
  54         __swab32s(&(rc).rpcs_dropped);  \
  55         __swab32s(&(rc).rpcs_expired);  \
  56         __swab64s(&(rc).bulk_get);      \
  57         __swab64s(&(rc).bulk_put);      \
  58 } while (0)
  59
  60 #define sfw_unpack_lnet_counters(lc)    \
  61 do {                                    \
  62         __swab32s(&(lc).errors);        \
  63         __swab32s(&(lc).msgs_max);      \
  64         __swab32s(&(lc).msgs_alloc);    \
  65         __swab32s(&(lc).send_count);    \
  66         __swab32s(&(lc).recv_count);    \
  67         __swab32s(&(lc).drop_count);    \
  68         __swab32s(&(lc).route_count);   \
  69         __swab64s(&(lc).send_length);   \
  70         __swab64s(&(lc).recv_length);   \
  71         __swab64s(&(lc).drop_length);   \
  72         __swab64s(&(lc).route_length);  \
  73 } while (0)
  74
  75 #define sfw_test_active(t)      (atomic_read(&(t)->tsi_nactive) != 0)
  76 #define sfw_batch_active(b)     (atomic_read(&(b)->bat_nactive) != 0)
  77
  78 struct smoketest_framework {
  79         struct list_head   fw_zombie_rpcs;     /* RPCs to be recycled */
  80         struct list_head   fw_zombie_sessions; /* stopping sessions */
  81         struct list_head   fw_tests;           /* registered test cases */
  82         atomic_t           fw_nzombies;        /* # zombie sessions */
  83         spinlock_t         fw_lock;            /* serialise */
  84         sfw_session_t     *fw_session;         /* _the_ session */
  85         int                fw_shuttingdown;    /* shutdown in progress */
  86         srpc_server_rpc_t *fw_active_srpc;     /* running RPC */
  87 } sfw_data;
  88
  89 /* forward ref's */
  90 int sfw_stop_batch (sfw_batch_t *tsb, int force);
  91 void sfw_destroy_session (sfw_session_t *sn);
  92
  93 static inline sfw_test_case_t *
  94 sfw_find_test_case(int id)
  95 {
  96         sfw_test_case_t *tsc;
  97
  98         LASSERT (id <= SRPC_SERVICE_MAX_ID);
  99         LASSERT (id > SRPC_FRAMEWORK_SERVICE_MAX_ID);
 100
 101         list_for_each_entry (tsc, &sfw_data.fw_tests, tsc_list) {
 102                 if (tsc->tsc_srv_service->sv_id == id)
 103                         return tsc;
 104         }
 105
 106         return NULL;
 107 }
 108
 109 static int
 110 sfw_register_test (srpc_service_t *service, sfw_test_client_ops_t *cliops)
 111 {
 112         sfw_test_case_t *tsc;
 113
 114         if (sfw_find_test_case(service->sv_id) != NULL) {
 115                 CERROR ("Failed to register test %s (%d)\n",
 116                         service->sv_name, service->sv_id);
 117                 return -EEXIST;
 118         }
 119
 120         LIBCFS_ALLOC(tsc, sizeof(sfw_test_case_t));
 121         if (tsc == NULL)
 122                 return -ENOMEM;
 123
 124         memset(tsc, 0, sizeof(sfw_test_case_t));
 125         tsc->tsc_cli_ops     = cliops;
 126         tsc->tsc_srv_service = service;
 127
 128         list_add_tail(&tsc->tsc_list, &sfw_data.fw_tests);
 129         return 0;
 130 }
 131
 132 void
 133 sfw_add_session_timer (void)
 134 {
 135         sfw_session_t *sn = sfw_data.fw_session;
 136         stt_timer_t   *timer = &sn->sn_timer;
 137
 138         LASSERT (!sfw_data.fw_shuttingdown);
 139
 140         if (sn == NULL || sn->sn_timeout == 0)
 141                 return;
 142
 143         LASSERT (!sn->sn_timer_active);
 144
 145         sn->sn_timer_active = 1;
 146         timer->stt_expires = cfs_time_add(sn->sn_timeout,
 147                                           cfs_time_current_sec());
 148         stt_add_timer(timer);
 149         return;
 150 }
 151
 152 int
 153 sfw_del_session_timer (void)
 154 {
 155         sfw_session_t *sn = sfw_data.fw_session;
 156
 157         if (sn == NULL || !sn->sn_timer_active)
 158                 return 0;
 159
 160         LASSERT (sn->sn_timeout != 0);
 161
 162         if (stt_del_timer(&sn->sn_timer)) { /* timer defused */
 163                 sn->sn_timer_active = 0;
 164                 return 0;
 165         }
 166
 167 #ifndef __KERNEL__
 168         /* Racing is impossible in single-threaded userland selftest */
 169         LBUG();
 170 #endif
 171         return EBUSY; /* racing with sfw_session_expired() */
 172 }
 173
 174 /* called with sfw_data.fw_lock held */
 175 static void
 176 sfw_deactivate_session (void)
 177 {
 178         sfw_session_t *sn = sfw_data.fw_session;
 179         int            nactive = 0;
 180         sfw_batch_t   *tsb;
 181
 182         if (sn == NULL) return;
 183
 184         LASSERT (!sn->sn_timer_active);
 185
 186         sfw_data.fw_session = NULL;
 187         atomic_inc(&sfw_data.fw_nzombies);
 188         list_add(&sn->sn_list, &sfw_data.fw_zombie_sessions);
 189
 190         list_for_each_entry (tsb, &sn->sn_batches, bat_list) {
 191                 if (sfw_batch_active(tsb)) {
 192                         nactive++;
 193                         sfw_stop_batch(tsb, 1);
 194                 }
 195         }
 196
 197         if (nactive != 0)
 198                 return;   /* wait for active batches to stop */
 199
 200         list_del_init(&sn->sn_list);
 201         spin_unlock(&sfw_data.fw_lock);
 202
 203         sfw_destroy_session(sn);
 204
 205         spin_lock(&sfw_data.fw_lock);
 206         return;
 207 }
 208
 209 #ifndef __KERNEL__
 210
 211 int
 212 sfw_session_removed (void)
 213 {
 214         return (sfw_data.fw_session == NULL) ? 1 : 0;
 215 }
 216
 217 #endif
 218
 219 void
 220 sfw_session_expired (void *data)
 221 {
 222         sfw_session_t *sn = data;
 223
 224         spin_lock(&sfw_data.fw_lock);
 225
 226         LASSERT (sn->sn_timer_active);
 227         LASSERT (sn == sfw_data.fw_session);
 228
 229         CWARN ("Session expired! sid: %s-"LPU64", name: %s\n",
 230                libcfs_nid2str(sn->sn_id.ses_nid),
 231                sn->sn_id.ses_stamp, &sn->sn_name[0]);
 232
 233         sn->sn_timer_active = 0;
 234         sfw_deactivate_session();
 235
 236         spin_unlock(&sfw_data.fw_lock);
 237         return;
 238 }
 239
 240 static inline void
 241 sfw_init_session (sfw_session_t *sn, lst_sid_t sid, const char *name)
 242 {
 243         stt_timer_t *timer = &sn->sn_timer;
 244
 245         memset(sn, 0, sizeof(sfw_session_t));
 246         CFS_INIT_LIST_HEAD(&sn->sn_list);
 247         CFS_INIT_LIST_HEAD(&sn->sn_batches);
 248         atomic_set(&sn->sn_brw_errors, 0);
 249         atomic_set(&sn->sn_ping_errors, 0);
 250         strncpy(&sn->sn_name[0], name, LST_NAME_SIZE);
 251
 252         sn->sn_timer_active = 0;
 253         sn->sn_id           = sid;
 254         sn->sn_timeout      = session_timeout;
 255
 256         timer->stt_data = sn;
 257         timer->stt_func = sfw_session_expired;
 258         CFS_INIT_LIST_HEAD(&timer->stt_list);
 259 }
 260
 261 /* completion handler for incoming framework RPCs */
 262 void
 263 sfw_server_rpc_done (srpc_server_rpc_t *rpc)
 264 {
 265         srpc_service_t *sv = rpc->srpc_service;
 266         int             status = rpc->srpc_status;
 267
 268         CDEBUG (D_NET,
 269                 "Incoming framework RPC done: "
 270                 "service %s, peer %s, status %s:%d\n",
 271                 sv->sv_name, libcfs_id2str(rpc->srpc_peer),
 272                 swi_state2str(rpc->srpc_wi.wi_state),
 273                 status);
 274
 275         if (rpc->srpc_bulk != NULL)
 276                 sfw_free_pages(rpc);
 277         return;
 278 }
 279
 280 void
 281 sfw_client_rpc_fini (srpc_client_rpc_t *rpc)
 282 {
 283         LASSERT (rpc->crpc_bulk.bk_niov == 0);
 284         LASSERT (list_empty(&rpc->crpc_list));
 285         LASSERT (atomic_read(&rpc->crpc_refcount) == 0);
 286 #ifndef __KERNEL__
 287         LASSERT (rpc->crpc_bulk.bk_pages == NULL);
 288 #endif
 289
 290         CDEBUG (D_NET,
 291                 "Outgoing framework RPC done: "
 292                 "service %d, peer %s, status %s:%d:%d\n",
 293                 rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
 294                 swi_state2str(rpc->crpc_wi.wi_state),
 295                 rpc->crpc_aborted, rpc->crpc_status);
 296
 297         spin_lock(&sfw_data.fw_lock);
 298
 299         /* my callers must finish all RPCs before shutting me down */
 300         LASSERT (!sfw_data.fw_shuttingdown);
 301         list_add(&rpc->crpc_list, &sfw_data.fw_zombie_rpcs);
 302
 303         spin_unlock(&sfw_data.fw_lock);
 304         return;
 305 }
 306
 307 sfw_batch_t *
 308 sfw_find_batch (lst_bid_t bid)
 309 {
 310         sfw_session_t *sn = sfw_data.fw_session;
 311         sfw_batch_t   *bat;
 312
 313         LASSERT (sn != NULL);
 314
 315         list_for_each_entry (bat, &sn->sn_batches, bat_list) {
 316                 if (bat->bat_id.bat_id == bid.bat_id)
 317                         return bat;
 318         }
 319
 320         return NULL;
 321 }
 322
 323 sfw_batch_t *
 324 sfw_bid2batch (lst_bid_t bid)
 325 {
 326         sfw_session_t *sn = sfw_data.fw_session;
 327         sfw_batch_t   *bat;
 328
 329         LASSERT (sn != NULL);
 330
 331         bat = sfw_find_batch(bid);
 332         if (bat != NULL)
 333                 return bat;
 334
 335         LIBCFS_ALLOC(bat, sizeof(sfw_batch_t));
 336         if (bat == NULL)
 337                 return NULL;
 338
 339         bat->bat_error    = 0;
 340         bat->bat_session  = sn;
 341         bat->bat_id       = bid;
 342         atomic_set(&bat->bat_nactive, 0);
 343         CFS_INIT_LIST_HEAD(&bat->bat_tests);
 344
 345         list_add_tail(&bat->bat_list, &sn->sn_batches);
 346         return bat;
 347 }
 348
 349 int
 350 sfw_get_stats (srpc_stat_reqst_t *request, srpc_stat_reply_t *reply)
 351 {
 352         sfw_session_t  *sn = sfw_data.fw_session;
 353         sfw_counters_t *cnt = &reply->str_fw;
 354         sfw_batch_t    *bat;
 355
 356         reply->str_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id;
 357
 358         if (request->str_sid.ses_nid == LNET_NID_ANY) {
 359                 reply->str_status = EINVAL;
 360                 return 0;
 361         }
 362
 363         if (sn == NULL || !sfw_sid_equal(request->str_sid, sn->sn_id)) {
 364                 reply->str_status = ESRCH;
 365                 return 0;
 366         }
 367
 368         LNET_LOCK();
 369         reply->str_lnet = the_lnet.ln_counters;
 370         LNET_UNLOCK();
 371
 372         srpc_get_counters(&reply->str_rpc);
 373
 374         cnt->brw_errors      = atomic_read(&sn->sn_brw_errors);
 375         cnt->ping_errors     = atomic_read(&sn->sn_ping_errors);
 376         cnt->zombie_sessions = atomic_read(&sfw_data.fw_nzombies);
 377
 378         cnt->active_tests = cnt->active_batches = 0;
 379         list_for_each_entry (bat, &sn->sn_batches, bat_list) {
 380                 int n = atomic_read(&bat->bat_nactive);
 381
 382                 if (n > 0) {
 383                         cnt->active_batches++;
 384                         cnt->active_tests += n;
 385                 }
 386         }
 387
 388         reply->str_status = 0;
 389         return 0;
 390 }
 391
 392 int
 393 sfw_make_session (srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply)
 394 {
 395         sfw_session_t *sn = sfw_data.fw_session;
 396
 397         if (request->mksn_sid.ses_nid == LNET_NID_ANY) {
 398                 reply->mksn_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id;
 399                 reply->mksn_status = EINVAL;
 400                 return 0;
 401         }
 402
 403         if (sn != NULL && !request->mksn_force) {
 404                 reply->mksn_sid    = sn->sn_id;
 405                 reply->mksn_status = EBUSY;
 406                 strncpy(&reply->mksn_name[0], &sn->sn_name[0], LST_NAME_SIZE);
 407                 return 0;
 408         }
 409
 410         LIBCFS_ALLOC(sn, sizeof(sfw_session_t));
 411         if (sn == NULL) {
 412                 CERROR ("Dropping RPC (mksn) under memory pressure.\n");
 413                 return -ENOMEM;
 414         }
 415
 416         sfw_init_session(sn, request->mksn_sid, &request->mksn_name[0]);
 417
 418         spin_lock(&sfw_data.fw_lock);
 419
 420         sfw_deactivate_session();
 421         LASSERT (sfw_data.fw_session == NULL);
 422         sfw_data.fw_session = sn;
 423
 424         spin_unlock(&sfw_data.fw_lock);
 425
 426         reply->mksn_status  = 0;
 427         reply->mksn_sid     = sn->sn_id;
 428         reply->mksn_timeout = sn->sn_timeout;
 429         return 0;
 430 }
 431
 432 int
 433 sfw_remove_session (srpc_rmsn_reqst_t *request, srpc_rmsn_reply_t *reply)
 434 {
 435         sfw_session_t *sn = sfw_data.fw_session;
 436
 437         reply->rmsn_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id;
 438
 439         if (request->rmsn_sid.ses_nid == LNET_NID_ANY) {
 440                 reply->rmsn_status = EINVAL;
 441                 return 0;
 442         }
 443
 444         if (sn == NULL || !sfw_sid_equal(request->rmsn_sid, sn->sn_id)) {
 445                 reply->rmsn_status = (sn == NULL) ? ESRCH : EBUSY;
 446                 return 0;
 447         }
 448
 449         spin_lock(&sfw_data.fw_lock);
 450         sfw_deactivate_session();
 451         spin_unlock(&sfw_data.fw_lock);
 452
 453         reply->rmsn_status = 0;
 454         reply->rmsn_sid    = LST_INVALID_SID;
 455         LASSERT (sfw_data.fw_session == NULL);
 456         return 0;
 457 }
 458
 459 int
 460 sfw_debug_session (srpc_debug_reqst_t *request, srpc_debug_reply_t *reply)
 461 {
 462         sfw_session_t *sn = sfw_data.fw_session;
 463
 464         if (sn == NULL) {
 465                 reply->dbg_status = ESRCH;
 466                 reply->dbg_sid    = LST_INVALID_SID;
 467                 return 0;
 468         }
 469
 470         reply->dbg_status  = 0;
 471         reply->dbg_sid     = sn->sn_id;
 472         reply->dbg_timeout = sn->sn_timeout;
 473         strncpy(reply->dbg_name, &sn->sn_name[0], LST_NAME_SIZE);
 474
 475         return 0;
 476 }
 477
 478 void
 479 sfw_test_rpc_fini (srpc_client_rpc_t *rpc)
 480 {
 481         sfw_test_unit_t     *tsu = rpc->crpc_priv;
 482         sfw_test_instance_t *tsi = tsu->tsu_instance;
 483
 484         /* Called with hold of tsi->tsi_lock */
 485         LASSERT (list_empty(&rpc->crpc_list));
 486         list_add(&rpc->crpc_list, &tsi->tsi_free_rpcs);
 487 }
 488
 489 int
 490 sfw_load_test (sfw_test_instance_t *tsi)
 491 {
 492         sfw_test_case_t *tsc = sfw_find_test_case(tsi->tsi_service);
 493         int              nrequired = sfw_test_buffers(tsi);
 494         int              nposted;
 495
 496         LASSERT (tsc != NULL);
 497
 498         if (tsi->tsi_is_client) {
 499                 tsi->tsi_ops = tsc->tsc_cli_ops;
 500                 return 0;
 501         }
 502
 503         nposted = srpc_service_add_buffers(tsc->tsc_srv_service, nrequired);
 504         if (nposted != nrequired) {
 505                 CWARN ("Failed to reserve enough buffers: "
 506                        "service %s, %d needed, %d reserved\n",
 507                        tsc->tsc_srv_service->sv_name, nrequired, nposted);
 508                 srpc_service_remove_buffers(tsc->tsc_srv_service, nposted);
 509                 return -ENOMEM;
 510         }
 511
 512         CDEBUG (D_NET, "Reserved %d buffers for test %s\n",
 513                 nposted, tsc->tsc_srv_service->sv_name);
 514         return 0;
 515 }
 516
 517 void
 518 sfw_unload_test (sfw_test_instance_t *tsi)
 519 {
 520         sfw_test_case_t *tsc = sfw_find_test_case(tsi->tsi_service);
 521
 522         LASSERT (tsc != NULL);
 523
 524         if (!tsi->tsi_is_client)
 525                 srpc_service_remove_buffers(tsc->tsc_srv_service,
 526                                             sfw_test_buffers(tsi));
 527         return;
 528 }
 529
 530 void
 531 sfw_destroy_test_instance (sfw_test_instance_t *tsi)
 532 {
 533         srpc_client_rpc_t *rpc;
 534         sfw_test_unit_t   *tsu;
 535
 536         if (!tsi->tsi_is_client) goto clean;
 537
 538         tsi->tsi_ops->tso_fini(tsi);
 539
 540         LASSERT (!tsi->tsi_stopping);
 541         LASSERT (list_empty(&tsi->tsi_active_rpcs));
 542         LASSERT (!sfw_test_active(tsi));
 543
 544         while (!list_empty(&tsi->tsi_units)) {
 545                 tsu = list_entry(tsi->tsi_units.next,
 546                                  sfw_test_unit_t, tsu_list);
 547                 list_del(&tsu->tsu_list);
 548                 LIBCFS_FREE(tsu, sizeof(*tsu));
 549         }
 550
 551         while (!list_empty(&tsi->tsi_free_rpcs)) {
 552                 rpc = list_entry(tsi->tsi_free_rpcs.next,
 553                                  srpc_client_rpc_t, crpc_list);
 554                 list_del(&rpc->crpc_list);
 555                 LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc));
 556         }
 557
 558 clean:
 559         sfw_unload_test(tsi);
 560         LIBCFS_FREE(tsi, sizeof(*tsi));
 561         return;
 562 }
 563
 564 void
 565 sfw_destroy_batch (sfw_batch_t *tsb)
 566 {
 567         sfw_test_instance_t *tsi;
 568
 569         LASSERT (!sfw_batch_active(tsb));
 570         LASSERT (list_empty(&tsb->bat_list));
 571
 572         while (!list_empty(&tsb->bat_tests)) {
 573                 tsi = list_entry(tsb->bat_tests.next,
 574                                  sfw_test_instance_t, tsi_list);
 575                 list_del_init(&tsi->tsi_list);
 576                 sfw_destroy_test_instance(tsi);
 577         }
 578
 579         LIBCFS_FREE(tsb, sizeof(sfw_batch_t));
 580         return;
 581 }
 582
 583 void
 584 sfw_destroy_session (sfw_session_t *sn)
 585 {
 586         sfw_batch_t *batch;
 587
 588         LASSERT (list_empty(&sn->sn_list));
 589         LASSERT (sn != sfw_data.fw_session);
 590
 591         while (!list_empty(&sn->sn_batches)) {
 592                 batch = list_entry(sn->sn_batches.next,
 593                                    sfw_batch_t, bat_list);
 594                 list_del_init(&batch->bat_list);
 595                 sfw_destroy_batch(batch);
 596         }
 597
 598         LIBCFS_FREE(sn, sizeof(*sn));
 599         atomic_dec(&sfw_data.fw_nzombies);
 600         return;
 601 }
 602
 603 void
 604 sfw_unpack_test_req (srpc_msg_t *msg)
 605 {
 606         srpc_test_reqst_t *req = &msg->msg_body.tes_reqst;
 607
 608         LASSERT (msg->msg_type == SRPC_MSG_TEST_REQST);
 609         LASSERT (req->tsr_is_client);
 610
 611         if (msg->msg_magic == SRPC_MSG_MAGIC)
 612                 return; /* no flipping needed */
 613
 614         LASSERT (msg->msg_magic == __swab32(SRPC_MSG_MAGIC));
 615
 616         if (req->tsr_service == SRPC_SERVICE_BRW) {
 617                 test_bulk_req_t *bulk = &req->tsr_u.bulk;
 618
 619                 __swab32s(&bulk->blk_opc);
 620                 __swab32s(&bulk->blk_npg);
 621                 __swab32s(&bulk->blk_flags);
 622                 return;
 623         }
 624
 625         if (req->tsr_service == SRPC_SERVICE_PING) {
 626                 test_ping_req_t *ping = &req->tsr_u.ping;
 627
 628                 __swab32s(&ping->png_size);
 629                 __swab32s(&ping->png_flags);
 630                 return;
 631         }
 632
 633         LBUG ();
 634         return;
 635 }
 636
 637 int
 638 sfw_add_test_instance (sfw_batch_t *tsb, srpc_server_rpc_t *rpc)
 639 {
 640         srpc_msg_t          *msg = &rpc->srpc_reqstbuf->buf_msg;
 641         srpc_test_reqst_t   *req = &msg->msg_body.tes_reqst;
 642         srpc_bulk_t         *bk = rpc->srpc_bulk;
 643         int                  ndest = req->tsr_ndest;
 644         sfw_test_unit_t     *tsu;
 645         sfw_test_instance_t *tsi;
 646         int                  i;
 647         int                  rc;
 648
 649         LIBCFS_ALLOC(tsi, sizeof(*tsi));
 650         if (tsi == NULL) {
 651                 CERROR ("Can't allocate test instance for batch: "LPU64"\n",
 652                         tsb->bat_id.bat_id);
 653                 return -ENOMEM;
 654         }
 655
 656         memset(tsi, 0, sizeof(*tsi));
 657         spin_lock_init(&tsi->tsi_lock);
 658         atomic_set(&tsi->tsi_nactive, 0);
 659         CFS_INIT_LIST_HEAD(&tsi->tsi_units);
 660         CFS_INIT_LIST_HEAD(&tsi->tsi_free_rpcs);
 661         CFS_INIT_LIST_HEAD(&tsi->tsi_active_rpcs);
 662
 663         tsi->tsi_stopping      = 0;
 664         tsi->tsi_batch         = tsb;
 665         tsi->tsi_loop          = req->tsr_loop;
 666         tsi->tsi_concur        = req->tsr_concur;
 667         tsi->tsi_service       = req->tsr_service;
 668         tsi->tsi_is_client     = !!(req->tsr_is_client);
 669         tsi->tsi_stoptsu_onerr = !!(req->tsr_stop_onerr);
 670
 671         rc = sfw_load_test(tsi);
 672         if (rc != 0) {
 673                 LIBCFS_FREE(tsi, sizeof(*tsi));
 674                 return rc;
 675         }
 676
 677         LASSERT (!sfw_batch_active(tsb));
 678
 679         if (!tsi->tsi_is_client) {
 680                 /* it's test server, just add it to tsb */
 681                 list_add_tail(&tsi->tsi_list, &tsb->bat_tests);
 682                 return 0;
 683         }
 684
 685         LASSERT (bk != NULL);
 686 #ifndef __KERNEL__
 687         LASSERT (bk->bk_pages != NULL);
 688 #endif
 689         LASSERT (bk->bk_niov * SFW_ID_PER_PAGE >= ndest);
 690         LASSERT (bk->bk_len >= sizeof(lnet_process_id_t) * ndest);
 691
 692         sfw_unpack_test_req(msg);
 693         memcpy(&tsi->tsi_u, &req->tsr_u, sizeof(tsi->tsi_u));
 694
 695         for (i = 0; i < ndest; i++) {
 696                 lnet_process_id_t *dests;
 697                 lnet_process_id_t  id;
 698                 int                j;
 699
 700 #ifdef __KERNEL__
 701                 dests = cfs_page_address(bk->bk_iovs[i / SFW_ID_PER_PAGE].kiov_page);
 702                 LASSERT (dests != NULL);  /* my pages are within KVM always */
 703 #else
 704                 dests = cfs_page_address(bk->bk_pages[i / SFW_ID_PER_PAGE]);
 705 #endif
 706                 id = dests[i % SFW_ID_PER_PAGE];
 707                 if (msg->msg_magic != SRPC_MSG_MAGIC)
 708                         sfw_unpack_id(id);
 709
 710                 for (j = 0; j < tsi->tsi_concur; j++) {
 711                         LIBCFS_ALLOC(tsu, sizeof(sfw_test_unit_t));
 712                         if (tsu == NULL) {
 713                                 rc = -ENOMEM;
 714                                 CERROR ("Can't allocate tsu for %d\n",
 715                                         tsi->tsi_service);
 716                                 goto error;
 717                         }
 718
 719                         tsu->tsu_dest     = id;
 720                         tsu->tsu_instance = tsi;
 721                         tsu->tsu_private  = NULL;
 722                         list_add_tail(&tsu->tsu_list, &tsi->tsi_units);
 723                 }
 724         }
 725
 726         rc = tsi->tsi_ops->tso_init(tsi);
 727         if (rc == 0) {
 728                 list_add_tail(&tsi->tsi_list, &tsb->bat_tests);
 729                 return 0;
 730         }
 731
 732 error:
 733         LASSERT (rc != 0);
 734         sfw_destroy_test_instance(tsi);
 735         return rc;
 736 }
 737
 738 static void
 739 sfw_test_unit_done (sfw_test_unit_t *tsu)
 740 {
 741         sfw_test_instance_t *tsi = tsu->tsu_instance;
 742         sfw_batch_t         *tsb = tsi->tsi_batch;
 743         sfw_session_t       *sn = tsb->bat_session;
 744
 745         LASSERT (sfw_test_active(tsi));
 746
 747         if (!atomic_dec_and_test(&tsi->tsi_nactive))
 748                 return;
 749
 750         /* the test instance is done */
 751         spin_lock(&tsi->tsi_lock);
 752
 753         tsi->tsi_stopping = 0;
 754
 755         spin_unlock(&tsi->tsi_lock);
 756
 757         spin_lock(&sfw_data.fw_lock);
 758
 759         if (!atomic_dec_and_test(&tsb->bat_nactive) || /* tsb still active */
 760             sn == sfw_data.fw_session) {               /* sn also active */
 761                 spin_unlock(&sfw_data.fw_lock);
 762                 return;
 763         }
 764
 765         LASSERT (!list_empty(&sn->sn_list)); /* I'm a zombie! */
 766
 767         list_for_each_entry (tsb, &sn->sn_batches, bat_list) {
 768                 if (sfw_batch_active(tsb)) {
 769                         spin_unlock(&sfw_data.fw_lock);
 770                         return;
 771                 }
 772         }
 773
 774         list_del_init(&sn->sn_list);
 775         spin_unlock(&sfw_data.fw_lock);
 776
 777         sfw_destroy_session(sn);
 778         return;
 779 }
 780
 781 void
 782 sfw_test_rpc_done (srpc_client_rpc_t *rpc)
 783 {
 784         sfw_test_unit_t     *tsu = rpc->crpc_priv;
 785         sfw_test_instance_t *tsi = tsu->tsu_instance;
 786         int                  done = 0;
 787
 788         tsi->tsi_ops->tso_done_rpc(tsu, rpc);
 789
 790         spin_lock(&tsi->tsi_lock);
 791
 792         LASSERT (sfw_test_active(tsi));
 793         LASSERT (!list_empty(&rpc->crpc_list));
 794
 795         list_del_init(&rpc->crpc_list);
 796
 797         /* batch is stopping or loop is done or get error */
 798         if (tsi->tsi_stopping ||
 799             tsu->tsu_loop == 0 ||
 800             (rpc->crpc_status != 0 && tsi->tsi_stoptsu_onerr))
 801                 done = 1;
 802
 803         /* dec ref for poster */
 804         srpc_client_rpc_decref(rpc);
 805
 806         spin_unlock(&tsi->tsi_lock);
 807
 808         if (!done) {
 809                 swi_schedule_workitem(&tsu->tsu_worker);
 810                 return;
 811         }
 812
 813         sfw_test_unit_done(tsu);
 814         return;
 815 }
 816
 817 int
 818 sfw_create_test_rpc (sfw_test_unit_t *tsu, lnet_process_id_t peer,
 819                      int nblk, int blklen, srpc_client_rpc_t **rpcpp)
 820 {
 821         srpc_client_rpc_t   *rpc = NULL;
 822         sfw_test_instance_t *tsi = tsu->tsu_instance;
 823
 824         spin_lock(&tsi->tsi_lock);
 825
 826         LASSERT (sfw_test_active(tsi));
 827
 828         if (!list_empty(&tsi->tsi_free_rpcs)) {
 829                 /* pick request from buffer */
 830                 rpc = list_entry(tsi->tsi_free_rpcs.next,
 831                                  srpc_client_rpc_t, crpc_list);
 832                 LASSERT (nblk == rpc->crpc_bulk.bk_niov);
 833                 list_del_init(&rpc->crpc_list);
 834
 835                 srpc_init_client_rpc(rpc, peer, tsi->tsi_service, nblk,
 836                                      blklen, sfw_test_rpc_done,
 837                                      sfw_test_rpc_fini, tsu);
 838         }
 839
 840         spin_unlock(&tsi->tsi_lock);
 841
 842         if (rpc == NULL)
 843                 rpc = srpc_create_client_rpc(peer, tsi->tsi_service, nblk,
 844                                              blklen, sfw_test_rpc_done,
 845                                              sfw_test_rpc_fini, tsu);
 846         if (rpc == NULL) {
 847                 CERROR ("Can't create rpc for test %d\n", tsi->tsi_service);
 848                 return -ENOMEM;
 849         }
 850
 851         *rpcpp = rpc;
 852         return 0;
 853 }
 854
 855 int
 856 sfw_run_test (swi_workitem_t *wi)
 857 {
 858         sfw_test_unit_t     *tsu = wi->wi_data;
 859         sfw_test_instance_t *tsi = tsu->tsu_instance;
 860         srpc_client_rpc_t   *rpc = NULL;
 861
 862         LASSERT (wi == &tsu->tsu_worker);
 863
 864         if (tsi->tsi_ops->tso_prep_rpc(tsu, tsu->tsu_dest, &rpc) != 0) {
 865                 LASSERT (rpc == NULL);
 866                 goto test_done;
 867         }
 868
 869         LASSERT (rpc != NULL);
 870
 871         spin_lock(&tsi->tsi_lock);
 872
 873         if (tsi->tsi_stopping) {
 874                 list_add(&rpc->crpc_list, &tsi->tsi_free_rpcs);
 875                 spin_unlock(&tsi->tsi_lock);
 876                 goto test_done;
 877         }
 878
 879         if (tsu->tsu_loop > 0)
 880                 tsu->tsu_loop--;
 881
 882         list_add_tail(&rpc->crpc_list, &tsi->tsi_active_rpcs);
 883         spin_unlock(&tsi->tsi_lock);
 884
 885         rpc->crpc_timeout = SFW_TEST_RPC_TIMEOUT;
 886
 887         spin_lock(&rpc->crpc_lock);
 888         srpc_post_rpc(rpc);
 889         spin_unlock(&rpc->crpc_lock);
 890         return 0;
 891
 892 test_done:
 893         /*
 894          * No one can schedule me now since:
 895          * - previous RPC, if any, has done and
 896          * - no new RPC is initiated.
 897          * - my batch is still active; no one can run it again now.
 898          * Cancel pending schedules and prevent future schedule attempts:
 899          */
 900         swi_kill_workitem(wi);
 901         sfw_test_unit_done(tsu);
 902         return 1;
 903 }
 904
 905 int
 906 sfw_run_batch (sfw_batch_t *tsb)
 907 {
 908         swi_workitem_t      *wi;
 909         sfw_test_unit_t     *tsu;
 910         sfw_test_instance_t *tsi;
 911
 912         if (sfw_batch_active(tsb)) {
 913                 CDEBUG (D_NET, "Can't start active batch: "LPU64" (%d)\n",
 914                         tsb->bat_id.bat_id, atomic_read(&tsb->bat_nactive));
 915                 return -EPERM;
 916         }
 917
 918         list_for_each_entry (tsi, &tsb->bat_tests, tsi_list) {
 919                 if (!tsi->tsi_is_client) /* skip server instances */
 920                         continue;
 921
 922                 LASSERT (!tsi->tsi_stopping);
 923                 LASSERT (!sfw_test_active(tsi));
 924
 925                 atomic_inc(&tsb->bat_nactive);
 926
 927                 list_for_each_entry (tsu, &tsi->tsi_units, tsu_list) {
 928                         atomic_inc(&tsi->tsi_nactive);
 929                         tsu->tsu_loop = tsi->tsi_loop;
 930                         wi = &tsu->tsu_worker;
 931                         swi_init_workitem(wi, tsu, sfw_run_test);
 932                         swi_schedule_workitem(wi);
 933                 }
 934         }
 935
 936         return 0;
 937 }
 938
 939 int
 940 sfw_stop_batch (sfw_batch_t *tsb, int force)
 941 {
 942         sfw_test_instance_t *tsi;
 943         srpc_client_rpc_t   *rpc;
 944
 945         if (!sfw_batch_active(tsb))
 946                 return -EPERM;
 947
 948         list_for_each_entry (tsi, &tsb->bat_tests, tsi_list) {
 949                 spin_lock(&tsi->tsi_lock);
 950
 951                 if (!tsi->tsi_is_client ||
 952                     !sfw_test_active(tsi) || tsi->tsi_stopping) {
 953                         spin_unlock(&tsi->tsi_lock);
 954                         continue;
 955                 }
 956
 957                 tsi->tsi_stopping = 1;
 958
 959                 if (!force) {
 960                         spin_unlock(&tsi->tsi_lock);
 961                         continue;
 962                 }
 963
 964                 /* abort launched rpcs in the test */
 965                 list_for_each_entry (rpc, &tsi->tsi_active_rpcs, crpc_list) {
 966                         spin_lock(&rpc->crpc_lock);
 967
 968                         srpc_abort_rpc(rpc, -EINTR);
 969
 970                         spin_unlock(&rpc->crpc_lock);
 971                 }
 972
 973                 spin_unlock(&tsi->tsi_lock);
 974         }
 975
 976         return 0;
 977 }
 978
 979 int
 980 sfw_query_batch (sfw_batch_t *tsb, int testidx, srpc_batch_reply_t *reply)
 981 {
 982         sfw_test_instance_t *tsi;
 983
 984         if (testidx < 0)
 985                 return -EINVAL;
 986
 987         if (testidx == 0) {
 988                 reply->bar_active = atomic_read(&tsb->bat_nactive);
 989                 return 0;
 990         }
 991
 992         list_for_each_entry (tsi, &tsb->bat_tests, tsi_list) {
 993                 if (testidx-- > 1)
 994                         continue;
 995
 996                 reply->bar_active = atomic_read(&tsi->tsi_nactive);
 997                 return 0;
 998         }
 999
1000         return -ENOENT;
1001 }
1002
1003 void
1004 sfw_free_pages (srpc_server_rpc_t *rpc)
1005 {
1006         srpc_free_bulk(rpc->srpc_bulk);
1007         rpc->srpc_bulk = NULL;
1008 }
1009
1010 int
1011 sfw_alloc_pages (srpc_server_rpc_t *rpc, int npages, int sink)
1012 {
1013         LASSERT (rpc->srpc_bulk == NULL);
1014         LASSERT (npages > 0 && npages <= LNET_MAX_IOV);
1015
1016         rpc->srpc_bulk = srpc_alloc_bulk(npages, sink);
1017         if (rpc->srpc_bulk == NULL) return -ENOMEM;
1018
1019         return 0;
1020 }
1021
1022 int
1023 sfw_add_test (srpc_server_rpc_t *rpc)
1024 {
1025         sfw_session_t     *sn = sfw_data.fw_session;
1026         srpc_test_reply_t *reply = &rpc->srpc_replymsg.msg_body.tes_reply;
1027         srpc_test_reqst_t *request;
1028         int                rc;
1029         sfw_batch_t       *bat;
1030
1031         request = &rpc->srpc_reqstbuf->buf_msg.msg_body.tes_reqst;
1032         reply->tsr_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id;
1033
1034         if (request->tsr_loop == 0 ||
1035             request->tsr_concur == 0 ||
1036             request->tsr_sid.ses_nid == LNET_NID_ANY ||
1037             request->tsr_ndest > SFW_MAX_NDESTS ||
1038             (request->tsr_is_client && request->tsr_ndest == 0) ||
1039             request->tsr_concur > SFW_MAX_CONCUR ||
1040             request->tsr_service > SRPC_SERVICE_MAX_ID ||
1041             request->tsr_service <= SRPC_FRAMEWORK_SERVICE_MAX_ID) {
1042                 reply->tsr_status = EINVAL;
1043                 return 0;
1044         }
1045
1046         if (sn == NULL || !sfw_sid_equal(request->tsr_sid, sn->sn_id) ||
1047             sfw_find_test_case(request->tsr_service) == NULL) {
1048                 reply->tsr_status = ENOENT;
1049                 return 0;
1050         }
1051
1052         bat = sfw_bid2batch(request->tsr_bid);
1053         if (bat == NULL) {
1054                 CERROR ("Dropping RPC (%s) from %s under memory pressure.\n",
1055                         rpc->srpc_service->sv_name,
1056                         libcfs_id2str(rpc->srpc_peer));
1057                 return -ENOMEM;
1058         }
1059
1060         if (sfw_batch_active(bat)) {
1061                 reply->tsr_status = EBUSY;
1062                 return 0;
1063         }
1064
1065         if (request->tsr_is_client && rpc->srpc_bulk == NULL) {
1066                 /* rpc will be resumed later in sfw_bulk_ready */
1067                 return sfw_alloc_pages(rpc,
1068                                        sfw_id_pages(request->tsr_ndest), 1);
1069         }
1070
1071         rc = sfw_add_test_instance(bat, rpc);
1072         CDEBUG (rc == 0 ? D_NET : D_WARNING,
1073                 "%s test: sv %d %s, loop %d, concur %d, ndest %d\n",
1074                 rc == 0 ? "Added" : "Failed to add", request->tsr_service,
1075                 request->tsr_is_client ? "client" : "server",
1076                 request->tsr_loop, request->tsr_concur, request->tsr_ndest);
1077
1078         reply->tsr_status = (rc < 0) ? -rc : rc;
1079         return 0;
1080 }
1081
1082 int
1083 sfw_control_batch (srpc_batch_reqst_t *request, srpc_batch_reply_t *reply)
1084 {
1085         sfw_session_t *sn = sfw_data.fw_session;
1086         int            rc = 0;
1087         sfw_batch_t   *bat;
1088
1089         reply->bar_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id;
1090
1091         if (sn == NULL || !sfw_sid_equal(request->bar_sid, sn->sn_id)) {
1092                 reply->bar_status = ESRCH;
1093                 return 0;
1094         }
1095
1096         bat = sfw_find_batch(request->bar_bid);
1097         if (bat == NULL) {
1098                 reply->bar_status = ENOENT;
1099                 return 0;
1100         }
1101
1102         switch (request->bar_opc) {
1103         case SRPC_BATCH_OPC_RUN:
1104                 rc = sfw_run_batch(bat);
1105                 break;
1106
1107         case SRPC_BATCH_OPC_STOP:
1108                 rc = sfw_stop_batch(bat, request->bar_arg);
1109                 break;
1110
1111         case SRPC_BATCH_OPC_QUERY:
1112                 rc = sfw_query_batch(bat, request->bar_testidx, reply);
1113                 break;
1114
1115         default:
1116                 return -EINVAL; /* drop it */
1117         }
1118
1119         reply->bar_status = (rc < 0) ? -rc : rc;
1120         return 0;
1121 }
1122
1123 int
1124 sfw_handle_server_rpc (srpc_server_rpc_t *rpc)
1125 {
1126         srpc_service_t *sv = rpc->srpc_service;
1127         srpc_msg_t     *reply = &rpc->srpc_replymsg;
1128         srpc_msg_t     *request = &rpc->srpc_reqstbuf->buf_msg;
1129         int             rc = 0;
1130
1131         LASSERT (sfw_data.fw_active_srpc == NULL);
1132         LASSERT (sv->sv_id <= SRPC_FRAMEWORK_SERVICE_MAX_ID);
1133
1134         spin_lock(&sfw_data.fw_lock);
1135
1136         if (sfw_data.fw_shuttingdown) {
1137                 spin_unlock(&sfw_data.fw_lock);
1138                 return -ESHUTDOWN;
1139         }
1140
1141         /* Remove timer to avoid racing with it or expiring active session */
1142         if (sfw_del_session_timer() != 0) {
1143                 CERROR ("Dropping RPC (%s) from %s: racing with expiry timer.",
1144                         sv->sv_name, libcfs_id2str(rpc->srpc_peer));
1145                 spin_unlock(&sfw_data.fw_lock);
1146                 return -EAGAIN;
1147         }
1148
1149         sfw_data.fw_active_srpc = rpc;
1150         spin_unlock(&sfw_data.fw_lock);
1151
1152         sfw_unpack_message(request);
1153         LASSERT (request->msg_type == srpc_service2request(sv->sv_id));
1154
1155         switch(sv->sv_id) {
1156         default:
1157                 LBUG ();
1158         case SRPC_SERVICE_TEST:
1159                 rc = sfw_add_test(rpc);
1160                 break;
1161
1162         case SRPC_SERVICE_BATCH:
1163                 rc = sfw_control_batch(&request->msg_body.bat_reqst,
1164                                        &reply->msg_body.bat_reply);
1165                 break;
1166
1167         case SRPC_SERVICE_QUERY_STAT:
1168                 rc = sfw_get_stats(&request->msg_body.stat_reqst,
1169                                    &reply->msg_body.stat_reply);
1170                 break;
1171
1172         case SRPC_SERVICE_DEBUG:
1173                 rc = sfw_debug_session(&request->msg_body.dbg_reqst,
1174                                        &reply->msg_body.dbg_reply);
1175                 break;
1176
1177         case SRPC_SERVICE_MAKE_SESSION:
1178                 rc = sfw_make_session(&request->msg_body.mksn_reqst,
1179                                       &reply->msg_body.mksn_reply);
1180                 break;
1181
1182         case SRPC_SERVICE_REMOVE_SESSION:
1183                 rc = sfw_remove_session(&request->msg_body.rmsn_reqst,
1184                                         &reply->msg_body.rmsn_reply);
1185                 break;
1186         }
1187
1188         rpc->srpc_done = sfw_server_rpc_done;
1189         spin_lock(&sfw_data.fw_lock);
1190
1191 #ifdef __KERNEL__
1192         if (!sfw_data.fw_shuttingdown)
1193                 sfw_add_session_timer();
1194 #else
1195         LASSERT (!sfw_data.fw_shuttingdown);
1196         sfw_add_session_timer();
1197 #endif
1198
1199         sfw_data.fw_active_srpc = NULL;
1200         spin_unlock(&sfw_data.fw_lock);
1201         return rc;
1202 }
1203
1204 int
1205 sfw_bulk_ready (srpc_server_rpc_t *rpc, int status)
1206 {
1207         srpc_service_t *sv = rpc->srpc_service;
1208         int             rc;
1209
1210         LASSERT (rpc->srpc_bulk != NULL);
1211         LASSERT (sv->sv_id == SRPC_SERVICE_TEST);
1212         LASSERT (sfw_data.fw_active_srpc == NULL);
1213         LASSERT (rpc->srpc_reqstbuf->buf_msg.msg_body.tes_reqst.tsr_is_client);
1214
1215         spin_lock(&sfw_data.fw_lock);
1216
1217         if (status != 0) {
1218                 CERROR ("Bulk transfer failed for RPC: "
1219                         "service %s, peer %s, status %d\n",
1220                         sv->sv_name, libcfs_id2str(rpc->srpc_peer), status);
1221                 spin_unlock(&sfw_data.fw_lock);
1222                 return -EIO;
1223         }
1224
1225         if (sfw_data.fw_shuttingdown) {
1226                 spin_unlock(&sfw_data.fw_lock);
1227                 return -ESHUTDOWN;
1228         }
1229
1230         if (sfw_del_session_timer() != 0) {
1231                 CERROR ("Dropping RPC (%s) from %s: racing with expiry timer",
1232                         sv->sv_name, libcfs_id2str(rpc->srpc_peer));
1233                 spin_unlock(&sfw_data.fw_lock);
1234                 return -EAGAIN;
1235         }
1236
1237         sfw_data.fw_active_srpc = rpc;
1238         spin_unlock(&sfw_data.fw_lock);
1239
1240         rc = sfw_add_test(rpc);
1241
1242         spin_lock(&sfw_data.fw_lock);
1243
1244 #ifdef __KERNEL__
1245         if (!sfw_data.fw_shuttingdown)
1246                 sfw_add_session_timer();
1247 #else
1248         LASSERT (!sfw_data.fw_shuttingdown);
1249         sfw_add_session_timer();
1250 #endif
1251
1252         sfw_data.fw_active_srpc = NULL;
1253         spin_unlock(&sfw_data.fw_lock);
1254         return rc;
1255 }
1256
1257 srpc_client_rpc_t *
1258 sfw_create_rpc (lnet_process_id_t peer, int service,
1259                 int nbulkiov, int bulklen,
1260                 void (*done) (srpc_client_rpc_t *), void *priv)
1261 {
1262         srpc_client_rpc_t *rpc;
1263
1264         spin_lock(&sfw_data.fw_lock);
1265
1266         LASSERT (!sfw_data.fw_shuttingdown);
1267         LASSERT (service <= SRPC_FRAMEWORK_SERVICE_MAX_ID);
1268
1269         if (nbulkiov == 0 && !list_empty(&sfw_data.fw_zombie_rpcs)) {
1270                 rpc = list_entry(sfw_data.fw_zombie_rpcs.next,
1271                                  srpc_client_rpc_t, crpc_list);
1272                 list_del(&rpc->crpc_list);
1273                 spin_unlock(&sfw_data.fw_lock);
1274
1275                 srpc_init_client_rpc(rpc, peer, service, 0, 0,
1276                                      done, sfw_client_rpc_fini, priv);
1277                 return rpc;
1278         }
1279
1280         spin_unlock(&sfw_data.fw_lock);
1281
1282         rpc = srpc_create_client_rpc(peer, service, nbulkiov, bulklen, done,
1283                                      nbulkiov != 0 ? NULL : sfw_client_rpc_fini,
1284                                      priv);
1285         return rpc;
1286 }
1287
1288 void
1289 sfw_unpack_message (srpc_msg_t *msg)
1290 {
1291         if (msg->msg_magic == SRPC_MSG_MAGIC)
1292                 return; /* no flipping needed */
1293
1294         LASSERT (msg->msg_magic == __swab32(SRPC_MSG_MAGIC));
1295
1296         __swab32s(&msg->msg_type);
1297
1298         if (msg->msg_type == SRPC_MSG_STAT_REQST) {
1299                 srpc_stat_reqst_t *req = &msg->msg_body.stat_reqst;
1300
1301                 __swab32s(&req->str_type);
1302                 __swab64s(&req->str_rpyid);
1303                 sfw_unpack_sid(req->str_sid);
1304                 return;
1305         }
1306
1307         if (msg->msg_type == SRPC_MSG_STAT_REPLY) {
1308                 srpc_stat_reply_t *rep = &msg->msg_body.stat_reply;
1309
1310                 __swab32s(&rep->str_status);
1311                 sfw_unpack_sid(rep->str_sid);
1312                 sfw_unpack_fw_counters(rep->str_fw);
1313                 sfw_unpack_rpc_counters(rep->str_rpc);
1314                 sfw_unpack_lnet_counters(rep->str_lnet);
1315                 return;
1316         }
1317
1318         if (msg->msg_type == SRPC_MSG_MKSN_REQST) {
1319                 srpc_mksn_reqst_t *req = &msg->msg_body.mksn_reqst;
1320
1321                 __swab64s(&req->mksn_rpyid);
1322                 __swab32s(&req->mksn_force);
1323                 sfw_unpack_sid(req->mksn_sid);
1324                 return;
1325         }
1326
1327         if (msg->msg_type == SRPC_MSG_MKSN_REPLY) {
1328                 srpc_mksn_reply_t *rep = &msg->msg_body.mksn_reply;
1329
1330                 __swab32s(&rep->mksn_status);
1331                 __swab32s(&rep->mksn_timeout);
1332                 sfw_unpack_sid(rep->mksn_sid);
1333                 return;
1334         }
1335
1336         if (msg->msg_type == SRPC_MSG_RMSN_REQST) {
1337                 srpc_rmsn_reqst_t *req = &msg->msg_body.rmsn_reqst;
1338
1339                 __swab64s(&req->rmsn_rpyid);
1340                 sfw_unpack_sid(req->rmsn_sid);
1341                 return;
1342         }
1343
1344         if (msg->msg_type == SRPC_MSG_RMSN_REPLY) {
1345                 srpc_rmsn_reply_t *rep = &msg->msg_body.rmsn_reply;
1346
1347                 __swab32s(&rep->rmsn_status);
1348                 sfw_unpack_sid(rep->rmsn_sid);
1349                 return;
1350         }
1351
1352         if (msg->msg_type == SRPC_MSG_DEBUG_REQST) {
1353                 srpc_debug_reqst_t *req = &msg->msg_body.dbg_reqst;
1354
1355                 __swab64s(&req->dbg_rpyid);
1356                 __swab32s(&req->dbg_flags);
1357                 sfw_unpack_sid(req->dbg_sid);
1358                 return;
1359         }
1360
1361         if (msg->msg_type == SRPC_MSG_DEBUG_REPLY) {
1362                 srpc_debug_reply_t *rep = &msg->msg_body.dbg_reply;
1363
1364                 __swab32s(&rep->dbg_nbatch);
1365                 __swab32s(&rep->dbg_timeout);
1366                 sfw_unpack_sid(rep->dbg_sid);
1367                 return;
1368         }
1369
1370         if (msg->msg_type == SRPC_MSG_BATCH_REQST) {
1371                 srpc_batch_reqst_t *req = &msg->msg_body.bat_reqst;
1372
1373                 __swab32s(&req->bar_opc);
1374                 __swab64s(&req->bar_rpyid);
1375                 __swab32s(&req->bar_testidx);
1376                 __swab32s(&req->bar_arg);
1377                 sfw_unpack_sid(req->bar_sid);
1378                 __swab64s(&req->bar_bid.bat_id);
1379                 return;
1380         }
1381
1382         if (msg->msg_type == SRPC_MSG_BATCH_REPLY) {
1383                 srpc_batch_reply_t *rep = &msg->msg_body.bat_reply;
1384
1385                 __swab32s(&rep->bar_status);
1386                 sfw_unpack_sid(rep->bar_sid);
1387                 return;
1388         }
1389
1390         if (msg->msg_type == SRPC_MSG_TEST_REQST) {
1391                 srpc_test_reqst_t *req = &msg->msg_body.tes_reqst;
1392
1393                 __swab64s(&req->tsr_rpyid);
1394                 __swab64s(&req->tsr_bulkid);
1395                 __swab32s(&req->tsr_loop);
1396                 __swab32s(&req->tsr_ndest);
1397                 __swab32s(&req->tsr_concur);
1398                 __swab32s(&req->tsr_service);
1399                 sfw_unpack_sid(req->tsr_sid);
1400                 __swab64s(&req->tsr_bid.bat_id);
1401                 return;
1402         }
1403
1404         if (msg->msg_type == SRPC_MSG_TEST_REPLY) {
1405                 srpc_test_reply_t *rep = &msg->msg_body.tes_reply;
1406
1407                 __swab32s(&rep->tsr_status);
1408                 sfw_unpack_sid(rep->tsr_sid);
1409                 return;
1410         }
1411
1412         if (msg->msg_type == SRPC_MSG_JOIN_REQST) {
1413                 srpc_join_reqst_t *req = &msg->msg_body.join_reqst;
1414
1415                 __swab64s(&req->join_rpyid);
1416                 sfw_unpack_sid(req->join_sid);
1417                 return;
1418         }
1419
1420         if (msg->msg_type == SRPC_MSG_JOIN_REPLY) {
1421                 srpc_join_reply_t *rep = &msg->msg_body.join_reply;
1422
1423                 __swab32s(&rep->join_status);
1424                 __swab32s(&rep->join_timeout);
1425                 sfw_unpack_sid(rep->join_sid);
1426                 return;
1427         }
1428
1429         LBUG ();
1430         return;
1431 }
1432
1433 void
1434 sfw_abort_rpc (srpc_client_rpc_t *rpc)
1435 {
1436         LASSERT (atomic_read(&rpc->crpc_refcount) > 0);
1437         LASSERT (rpc->crpc_service <= SRPC_FRAMEWORK_SERVICE_MAX_ID);
1438
1439         spin_lock(&rpc->crpc_lock);
1440         srpc_abort_rpc(rpc, -EINTR);
1441         spin_unlock(&rpc->crpc_lock);
1442         return;
1443 }
1444
1445 void
1446 sfw_post_rpc (srpc_client_rpc_t *rpc)
1447 {
1448         spin_lock(&rpc->crpc_lock);
1449
1450         LASSERT (!rpc->crpc_closed);
1451         LASSERT (!rpc->crpc_aborted);
1452         LASSERT (list_empty(&rpc->crpc_list));
1453         LASSERT (!sfw_data.fw_shuttingdown);
1454
1455         rpc->crpc_timeout = SFW_CLIENT_RPC_TIMEOUT;
1456         srpc_post_rpc(rpc);
1457
1458         spin_unlock(&rpc->crpc_lock);
1459         return;
1460 }
1461
1462 static srpc_service_t sfw_services[] =
1463 {
1464         {
1465                 .sv_name = "debug",
1466                 .sv_id   = SRPC_SERVICE_DEBUG,
1467         },
1468         {
1469                 .sv_name = "query stats",
1470                 .sv_id   = SRPC_SERVICE_QUERY_STAT,
1471         },
1472         {
1473                 .sv_name = "make sessin",
1474                 .sv_id   = SRPC_SERVICE_MAKE_SESSION,
1475         },
1476         {
1477                 .sv_name = "remove session",
1478                 .sv_id   = SRPC_SERVICE_REMOVE_SESSION,
1479         },
1480         {
1481                 .sv_name = "batch service",
1482                 .sv_id   = SRPC_SERVICE_BATCH,
1483         },
1484         {
1485                 .sv_name = "test service",
1486                 .sv_id   = SRPC_SERVICE_TEST,
1487         },
1488         {       .sv_name = NULL, }
1489 };
1490
1491 extern sfw_test_client_ops_t ping_test_client;
1492 extern srpc_service_t        ping_test_service;
1493
1494 extern sfw_test_client_ops_t brw_test_client;
1495 extern srpc_service_t        brw_test_service;
1496
1497 int
1498 sfw_startup (void)
1499 {
1500         int              i;
1501         int              rc;
1502         int              error;
1503         srpc_service_t  *sv;
1504         sfw_test_case_t *tsc;
1505
1506 #ifndef __KERNEL__
1507         char *s;
1508
1509         s = getenv("SESSION_TIMEOUT");
1510         session_timeout = s != NULL ? atoi(s) : session_timeout;
1511
1512         s = getenv("BRW_INJECT_ERRORS");
1513         brw_inject_errors = s != NULL ? atoi(s) : brw_inject_errors;
1514 #endif
1515
1516         if (session_timeout < 0) {
1517                 CERROR ("Session timeout must be non-negative: %d\n",
1518                         session_timeout);
1519                 return -EINVAL;
1520         }
1521
1522         if (session_timeout == 0)
1523                 CWARN ("Zero session_timeout specified "
1524                        "- test sessions never expire.\n");
1525
1526         memset(&sfw_data, 0, sizeof(struct smoketest_framework));
1527
1528         sfw_data.fw_session     = NULL;
1529         sfw_data.fw_active_srpc = NULL;
1530         spin_lock_init(&sfw_data.fw_lock);
1531         atomic_set(&sfw_data.fw_nzombies, 0);
1532         CFS_INIT_LIST_HEAD(&sfw_data.fw_tests);
1533         CFS_INIT_LIST_HEAD(&sfw_data.fw_zombie_rpcs);
1534         CFS_INIT_LIST_HEAD(&sfw_data.fw_zombie_sessions);
1535
1536         rc = sfw_register_test(&brw_test_service, &brw_test_client);
1537         LASSERT (rc == 0);
1538         rc = sfw_register_test(&ping_test_service, &ping_test_client);
1539         LASSERT (rc == 0);
1540
1541         error = 0;
1542         list_for_each_entry (tsc, &sfw_data.fw_tests, tsc_list) {
1543                 sv = tsc->tsc_srv_service;
1544                 sv->sv_concur = SFW_TEST_CONCURRENCY;
1545
1546                 rc = srpc_add_service(sv);
1547                 LASSERT (rc != -EBUSY);
1548                 if (rc != 0) {
1549                         CWARN ("Failed to add %s service: %d\n",
1550                                sv->sv_name, rc);
1551                         error = rc;
1552                 }
1553         }
1554
1555         for (i = 0; ; i++) {
1556                 sv = &sfw_services[i];
1557                 if (sv->sv_name == NULL) break;
1558
1559                 sv->sv_bulk_ready = NULL;
1560                 sv->sv_handler    = sfw_handle_server_rpc;
1561                 sv->sv_concur     = SFW_SERVICE_CONCURRENCY;
1562                 if (sv->sv_id == SRPC_SERVICE_TEST)
1563                         sv->sv_bulk_ready = sfw_bulk_ready;
1564
1565                 rc = srpc_add_service(sv);
1566                 LASSERT (rc != -EBUSY);
1567                 if (rc != 0) {
1568                         CWARN ("Failed to add %s service: %d\n",
1569                                sv->sv_name, rc);
1570                         error = rc;
1571                 }
1572
1573                 /* about to sfw_shutdown, no need to add buffer */
1574                 if (error) continue;
1575
1576                 rc = srpc_service_add_buffers(sv, SFW_POST_BUFFERS);
1577                 if (rc != SFW_POST_BUFFERS) {
1578                         CWARN ("Failed to reserve enough buffers: "
1579                                "service %s, %d needed, %d reserved\n",
1580                                sv->sv_name, SFW_POST_BUFFERS, rc);
1581                         error = -ENOMEM;
1582                 }
1583         }
1584
1585         if (error != 0)
1586                 sfw_shutdown();
1587         return error;
1588 }
1589
1590 void
1591 sfw_shutdown (void)
1592 {
1593         srpc_service_t  *sv;
1594         sfw_test_case_t *tsc;
1595         int              i;
1596
1597         spin_lock(&sfw_data.fw_lock);
1598
1599         sfw_data.fw_shuttingdown = 1;
1600 #ifdef __KERNEL__
1601         lst_wait_until(sfw_data.fw_active_srpc == NULL, sfw_data.fw_lock,
1602                        "waiting for active RPC to finish.\n");
1603 #else
1604         LASSERT (sfw_data.fw_active_srpc == NULL);
1605 #endif
1606
1607         if (sfw_del_session_timer() != 0)
1608                 lst_wait_until(sfw_data.fw_session == NULL, sfw_data.fw_lock,
1609                                "waiting for session timer to explode.\n");
1610
1611         sfw_deactivate_session();
1612         lst_wait_until(atomic_read(&sfw_data.fw_nzombies) == 0,
1613                        sfw_data.fw_lock,
1614                        "waiting for %d zombie sessions to die.\n",
1615                        atomic_read(&sfw_data.fw_nzombies));
1616
1617         spin_unlock(&sfw_data.fw_lock);
1618
1619         for (i = 0; ; i++) {
1620                 sv = &sfw_services[i];
1621                 if (sv->sv_name == NULL)
1622                         break;
1623
1624                 srpc_shutdown_service(sv);
1625                 srpc_remove_service(sv);
1626         }
1627
1628         list_for_each_entry (tsc, &sfw_data.fw_tests, tsc_list) {
1629                 sv = tsc->tsc_srv_service;
1630                 srpc_shutdown_service(sv);
1631                 srpc_remove_service(sv);
1632         }
1633
1634         while (!list_empty(&sfw_data.fw_zombie_rpcs)) {
1635                 srpc_client_rpc_t *rpc;
1636
1637                 rpc = list_entry(sfw_data.fw_zombie_rpcs.next,
1638                                  srpc_client_rpc_t, crpc_list);
1639                 list_del(&rpc->crpc_list);
1640
1641                 LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc));
1642         }
1643
1644         for (i = 0; ; i++) {
1645                 sv = &sfw_services[i];
1646                 if (sv->sv_name == NULL)
1647                         break;
1648
1649                 srpc_wait_service_shutdown(sv);
1650         }
1651
1652         while (!list_empty(&sfw_data.fw_tests)) {
1653                 tsc = list_entry(sfw_data.fw_tests.next,
1654                                  sfw_test_case_t, tsc_list);
1655
1656                 srpc_wait_service_shutdown(tsc->tsc_srv_service);
1657
1658                 list_del(&tsc->tsc_list);
1659                 LIBCFS_FREE(tsc, sizeof(*tsc));
1660         }
1661
1662         return;
1663 }