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 <libcfs/kp30.h>
  12 #include <libcfs/libcfs.h>
  13 #include <lnet/lib-lnet.h>
  14
  15 #include "selftest.h"
  16
  17
  18 int brw_inject_errors = 0;
  19 CFS_MODULE_PARM(brw_inject_errors, "i", int, 0644,
  20                 "# data errors to inject randomly, zero by default");
  21
  22 static int session_timeout = 100;
  23 CFS_MODULE_PARM(session_timeout, "i", int, 0444,
  24                 "test session timeout in seconds (100 by default, 0 == never)");
  25
  26 #define SFW_TEST_CONCURRENCY     128
  27 #define SFW_TEST_RPC_TIMEOUT     64
  28 #define SFW_CLIENT_RPC_TIMEOUT   64  /* in seconds */
  29 #define SFW_EXTRA_TEST_BUFFERS   8 /* tolerate buggy peers with extra buffers */
  30
  31 #define sfw_test_buffers(tsi)    ((tsi)->tsi_loop + SFW_EXTRA_TEST_BUFFERS)
  32
  33 #define sfw_unpack_id(id)               \
  34 do {                                    \
  35         __swab64s(&(id).nid);           \
  36         __swab32s(&(id).pid);           \
  37 } while (0)
  38
  39 #define sfw_unpack_sid(sid)             \
  40 do {                                    \
  41         __swab64s(&(sid).ses_nid);      \
  42         __swab64s(&(sid).ses_stamp);    \
  43 } while (0)
  44
  45 #define sfw_unpack_fw_counters(fc)        \
  46 do {                                      \
  47         __swab32s(&(fc).brw_errors);      \
  48         __swab32s(&(fc).ping_errors);     \
  49         __swab32s(&(fc).active_tests);    \
  50         __swab32s(&(fc).active_batches);  \
  51         __swab32s(&(fc).zombie_sessions); \
  52 } while (0)
  53
  54 #define sfw_unpack_rpc_counters(rc)     \
  55 do {                                    \
  56         __swab32s(&(rc).errors);        \
  57         __swab32s(&(rc).rpcs_sent);     \
  58         __swab32s(&(rc).rpcs_rcvd);     \
  59         __swab32s(&(rc).rpcs_dropped);  \
  60         __swab32s(&(rc).rpcs_expired);  \
  61         __swab64s(&(rc).bulk_get);      \
  62         __swab64s(&(rc).bulk_put);      \
  63 } while (0)
  64
  65 #define sfw_unpack_lnet_counters(lc)    \
  66 do {                                    \
  67         __swab32s(&(lc).errors);        \
  68         __swab32s(&(lc).msgs_max);      \
  69         __swab32s(&(lc).msgs_alloc);    \
  70         __swab32s(&(lc).send_count);    \
  71         __swab32s(&(lc).recv_count);    \
  72         __swab32s(&(lc).drop_count);    \
  73         __swab32s(&(lc).route_count);   \
  74         __swab64s(&(lc).send_length);   \
  75         __swab64s(&(lc).recv_length);   \
  76         __swab64s(&(lc).drop_length);   \
  77         __swab64s(&(lc).route_length);  \
  78 } while (0)
  79
  80 #define sfw_test_active(t)      (atomic_read(&(t)->tsi_nactive) != 0)
  81 #define sfw_batch_active(b)     (atomic_read(&(b)->bat_nactive) != 0)
  82
  83 struct smoketest_framework {
  84         struct list_head   fw_zombie_rpcs;     /* RPCs to be recycled */
  85         struct list_head   fw_zombie_sessions; /* stopping sessions */
  86         struct list_head   fw_tests;           /* registered test cases */
  87         atomic_t           fw_nzombies;        /* # zombie sessions */
  88         spinlock_t         fw_lock;            /* serialise */
  89         sfw_session_t     *fw_session;         /* _the_ session */
  90         int                fw_shuttingdown;    /* shutdown in progress */
  91         srpc_server_rpc_t *fw_active_srpc;     /* running RPC */
  92 } sfw_data;
  93
  94 /* forward ref's */
  95 int sfw_stop_batch (sfw_batch_t *tsb, int force);
  96 void sfw_destroy_session (sfw_session_t *sn);
  97
  98 static inline sfw_test_case_t *
  99 sfw_find_test_case(int id)
 100 {
 101         sfw_test_case_t *tsc;
 102
 103         LASSERT (id <= SRPC_SERVICE_MAX_ID);
 104         LASSERT (id > SRPC_FRAMEWORK_SERVICE_MAX_ID);
 105
 106         list_for_each_entry (tsc, &sfw_data.fw_tests, tsc_list) {
 107                 if (tsc->tsc_srv_service->sv_id == id)
 108                         return tsc;
 109         }
 110
 111         return NULL;
 112 }
 113
 114 static int
 115 sfw_register_test (srpc_service_t *service, sfw_test_client_ops_t *cliops)
 116 {
 117         sfw_test_case_t *tsc;
 118
 119         if (sfw_find_test_case(service->sv_id) != NULL) {
 120                 CERROR ("Failed to register test %s (%d)\n",
 121                         service->sv_name, service->sv_id);
 122                 return -EEXIST;
 123         }
 124
 125         LIBCFS_ALLOC(tsc, sizeof(sfw_test_case_t));
 126         if (tsc == NULL)
 127                 return -ENOMEM;
 128
 129         memset(tsc, 0, sizeof(sfw_test_case_t));
 130         tsc->tsc_cli_ops     = cliops;
 131         tsc->tsc_srv_service = service;
 132
 133         list_add_tail(&tsc->tsc_list, &sfw_data.fw_tests);
 134         return 0;
 135 }
 136
 137 void
 138 sfw_add_session_timer (void)
 139 {
 140         sfw_session_t *sn = sfw_data.fw_session;
 141         stt_timer_t   *timer = &sn->sn_timer;
 142
 143         LASSERT (!sfw_data.fw_shuttingdown);
 144
 145         if (sn == NULL || sn->sn_timeout == 0)
 146                 return;
 147
 148         LASSERT (!sn->sn_timer_active);
 149
 150         sn->sn_timer_active = 1;
 151         timer->stt_expires = cfs_time_add(sn->sn_timeout,
 152                                           cfs_time_current_sec());
 153         stt_add_timer(timer);
 154         return;
 155 }
 156
 157 int
 158 sfw_del_session_timer (void)
 159 {
 160         sfw_session_t *sn = sfw_data.fw_session;
 161
 162         if (sn == NULL || !sn->sn_timer_active)
 163                 return 0;
 164
 165         LASSERT (sn->sn_timeout != 0);
 166
 167         if (stt_del_timer(&sn->sn_timer)) { /* timer defused */
 168                 sn->sn_timer_active = 0;
 169                 return 0;
 170         }
 171
 172 #ifndef __KERNEL__
 173         /* Racing is impossible in single-threaded userland selftest */
 174         LBUG();
 175 #endif
 176         return EBUSY; /* racing with sfw_session_expired() */
 177 }
 178
 179 /* called with sfw_data.fw_lock held */
 180 static void
 181 sfw_deactivate_session (void)
 182 {
 183         sfw_session_t *sn = sfw_data.fw_session;
 184         int            nactive = 0;
 185         sfw_batch_t   *tsb;
 186
 187         if (sn == NULL) return;
 188
 189         LASSERT (!sn->sn_timer_active);
 190
 191         sfw_data.fw_session = NULL;
 192         atomic_inc(&sfw_data.fw_nzombies);
 193         list_add(&sn->sn_list, &sfw_data.fw_zombie_sessions);
 194
 195         list_for_each_entry (tsb, &sn->sn_batches, bat_list) {
 196                 if (sfw_batch_active(tsb)) {
 197                         nactive++;
 198                         sfw_stop_batch(tsb, 1);
 199                 }
 200         }
 201
 202         if (nactive != 0)
 203                 return;   /* wait for active batches to stop */
 204
 205         list_del_init(&sn->sn_list);
 206         spin_unlock(&sfw_data.fw_lock);
 207
 208         sfw_destroy_session(sn);
 209
 210         spin_lock(&sfw_data.fw_lock);
 211         return;
 212 }
 213
 214 #ifndef __KERNEL__
 215
 216 int
 217 sfw_session_removed (void)
 218 {
 219         return (sfw_data.fw_session == NULL) ? 1 : 0;
 220 }
 221
 222 #endif
 223
 224 void
 225 sfw_session_expired (void *data)
 226 {
 227         sfw_session_t *sn = data;
 228
 229         spin_lock(&sfw_data.fw_lock);
 230
 231         LASSERT (sn->sn_timer_active);
 232         LASSERT (sn == sfw_data.fw_session);
 233
 234         CWARN ("Session expired! sid: %s-"LPU64", name: %s\n",
 235                libcfs_nid2str(sn->sn_id.ses_nid),
 236                sn->sn_id.ses_stamp, &sn->sn_name[0]);
 237
 238         sn->sn_timer_active = 0;
 239         sfw_deactivate_session();
 240
 241         spin_unlock(&sfw_data.fw_lock);
 242         return;
 243 }
 244
 245 static inline void
 246 sfw_init_session (sfw_session_t *sn, lst_sid_t sid, const char *name)
 247 {
 248         stt_timer_t *timer = &sn->sn_timer;
 249
 250         memset(sn, 0, sizeof(sfw_session_t));
 251         CFS_INIT_LIST_HEAD(&sn->sn_list);
 252         CFS_INIT_LIST_HEAD(&sn->sn_batches);
 253         atomic_set(&sn->sn_brw_errors, 0);
 254         atomic_set(&sn->sn_ping_errors, 0);
 255         strncpy(&sn->sn_name[0], name, LST_NAME_SIZE);
 256
 257         sn->sn_timer_active = 0;
 258         sn->sn_id           = sid;
 259         sn->sn_timeout      = session_timeout;
 260
 261         timer->stt_data = sn;
 262         timer->stt_func = sfw_session_expired;
 263         CFS_INIT_LIST_HEAD(&timer->stt_list);
 264 }
 265
 266 /* completion handler for incoming framework RPCs */
 267 void
 268 sfw_server_rpc_done (srpc_server_rpc_t *rpc)
 269 {
 270         srpc_service_t *sv = rpc->srpc_service;
 271         int             status = rpc->srpc_status;
 272
 273         CDEBUG (D_NET,
 274                 "Incoming framework RPC done: "
 275                 "service %s, peer %s, status %s:%d\n",
 276                 sv->sv_name, libcfs_id2str(rpc->srpc_peer),
 277                 swi_state2str(rpc->srpc_wi.wi_state),
 278                 status);
 279
 280         if (rpc->srpc_bulk != NULL)
 281                 sfw_free_pages(rpc);
 282         return;
 283 }
 284
 285 void
 286 sfw_client_rpc_fini (srpc_client_rpc_t *rpc)
 287 {
 288         LASSERT (rpc->crpc_bulk.bk_niov == 0);
 289         LASSERT (list_empty(&rpc->crpc_list));
 290         LASSERT (atomic_read(&rpc->crpc_refcount) == 0);
 291 #ifndef __KERNEL__
 292         LASSERT (rpc->crpc_bulk.bk_pages == NULL);
 293 #endif
 294
 295         CDEBUG (D_NET,
 296                 "Outgoing framework RPC done: "
 297                 "service %d, peer %s, status %s:%d:%d\n",
 298                 rpc->crpc_service, libcfs_id2str(rpc->crpc_dest),
 299                 swi_state2str(rpc->crpc_wi.wi_state),
 300                 rpc->crpc_aborted, rpc->crpc_status);
 301
 302         spin_lock(&sfw_data.fw_lock);
 303
 304         /* my callers must finish all RPCs before shutting me down */
 305         LASSERT (!sfw_data.fw_shuttingdown);
 306         list_add(&rpc->crpc_list, &sfw_data.fw_zombie_rpcs);
 307
 308         spin_unlock(&sfw_data.fw_lock);
 309         return;
 310 }
 311
 312 sfw_batch_t *
 313 sfw_find_batch (lst_bid_t bid)
 314 {
 315         sfw_session_t *sn = sfw_data.fw_session;
 316         sfw_batch_t   *bat;
 317
 318         LASSERT (sn != NULL);
 319
 320         list_for_each_entry (bat, &sn->sn_batches, bat_list) {
 321                 if (bat->bat_id.bat_id == bid.bat_id)
 322                         return bat;
 323         }
 324
 325         return NULL;
 326 }
 327
 328 sfw_batch_t *
 329 sfw_bid2batch (lst_bid_t bid)
 330 {
 331         sfw_session_t *sn = sfw_data.fw_session;
 332         sfw_batch_t   *bat;
 333
 334         LASSERT (sn != NULL);
 335
 336         bat = sfw_find_batch(bid);
 337         if (bat != NULL)
 338                 return bat;
 339
 340         LIBCFS_ALLOC(bat, sizeof(sfw_batch_t));
 341         if (bat == NULL)
 342                 return NULL;
 343
 344         bat->bat_error    = 0;
 345         bat->bat_session  = sn;
 346         bat->bat_id       = bid;
 347         atomic_set(&bat->bat_nactive, 0);
 348         CFS_INIT_LIST_HEAD(&bat->bat_tests);
 349
 350         list_add_tail(&bat->bat_list, &sn->sn_batches);
 351         return bat;
 352 }
 353
 354 int
 355 sfw_get_stats (srpc_stat_reqst_t *request, srpc_stat_reply_t *reply)
 356 {
 357         sfw_session_t  *sn = sfw_data.fw_session;
 358         sfw_counters_t *cnt = &reply->str_fw;
 359         sfw_batch_t    *bat;
 360
 361         reply->str_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id;
 362
 363         if (request->str_sid.ses_nid == LNET_NID_ANY) {
 364                 reply->str_status = EINVAL;
 365                 return 0;
 366         }
 367
 368         if (sn == NULL || !sfw_sid_equal(request->str_sid, sn->sn_id)) {
 369                 reply->str_status = ESRCH;
 370                 return 0;
 371         }
 372
 373         LNET_LOCK();
 374         reply->str_lnet = the_lnet.ln_counters;
 375         LNET_UNLOCK();
 376
 377         srpc_get_counters(&reply->str_rpc);
 378
 379         cnt->brw_errors      = atomic_read(&sn->sn_brw_errors);
 380         cnt->ping_errors     = atomic_read(&sn->sn_ping_errors);
 381         cnt->zombie_sessions = atomic_read(&sfw_data.fw_nzombies);
 382
 383         cnt->active_tests = cnt->active_batches = 0;
 384         list_for_each_entry (bat, &sn->sn_batches, bat_list) {
 385                 int n = atomic_read(&bat->bat_nactive);
 386
 387                 if (n > 0) {
 388                         cnt->active_batches++;
 389                         cnt->active_tests += n;
 390                 }
 391         }
 392
 393         reply->str_status = 0;
 394         return 0;
 395 }
 396
 397 int
 398 sfw_make_session (srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply)
 399 {
 400         sfw_session_t *sn = sfw_data.fw_session;
 401
 402         if (request->mksn_sid.ses_nid == LNET_NID_ANY) {
 403                 reply->mksn_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id;
 404                 reply->mksn_status = EINVAL;
 405                 return 0;
 406         }
 407
 408         if (sn != NULL && !request->mksn_force) {
 409                 reply->mksn_sid    = sn->sn_id;
 410                 reply->mksn_status = EBUSY;
 411                 strncpy(&reply->mksn_name[0], &sn->sn_name[0], LST_NAME_SIZE);
 412                 return 0;
 413         }
 414
 415         LIBCFS_ALLOC(sn, sizeof(sfw_session_t));
 416         if (sn == NULL) {
 417                 CERROR ("Dropping RPC (mksn) under memory pressure.\n");
 418                 return -ENOMEM;
 419         }
 420
 421         sfw_init_session(sn, request->mksn_sid, &request->mksn_name[0]);
 422
 423         spin_lock(&sfw_data.fw_lock);
 424
 425         sfw_deactivate_session();
 426         LASSERT (sfw_data.fw_session == NULL);
 427         sfw_data.fw_session = sn;
 428
 429         spin_unlock(&sfw_data.fw_lock);
 430
 431         reply->mksn_status  = 0;
 432         reply->mksn_sid     = sn->sn_id;
 433         reply->mksn_timeout = sn->sn_timeout;
 434         return 0;
 435 }
 436
 437 int
 438 sfw_remove_session (srpc_rmsn_reqst_t *request, srpc_rmsn_reply_t *reply)
 439 {
 440         sfw_session_t *sn = sfw_data.fw_session;
 441
 442         reply->rmsn_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id;
 443
 444         if (request->rmsn_sid.ses_nid == LNET_NID_ANY) {
 445                 reply->rmsn_status = EINVAL;
 446                 return 0;
 447         }
 448
 449         if (sn == NULL || !sfw_sid_equal(request->rmsn_sid, sn->sn_id)) {
 450                 reply->rmsn_status = (sn == NULL) ? ESRCH : EBUSY;
 451                 return 0;
 452         }
 453
 454         spin_lock(&sfw_data.fw_lock);
 455         sfw_deactivate_session();
 456         spin_unlock(&sfw_data.fw_lock);
 457
 458         reply->rmsn_status = 0;
 459         reply->rmsn_sid    = LST_INVALID_SID;
 460         LASSERT (sfw_data.fw_session == NULL);
 461         return 0;
 462 }
 463
 464 int
 465 sfw_debug_session (srpc_debug_reqst_t *request, srpc_debug_reply_t *reply)
 466 {
 467         sfw_session_t *sn = sfw_data.fw_session;
 468
 469         if (sn == NULL) {
 470                 reply->dbg_status = ESRCH;
 471                 reply->dbg_sid    = LST_INVALID_SID;
 472                 return 0;
 473         }
 474
 475         reply->dbg_status  = 0;
 476         reply->dbg_sid     = sn->sn_id;
 477         reply->dbg_timeout = sn->sn_timeout;
 478         strncpy(reply->dbg_name, &sn->sn_name[0], LST_NAME_SIZE);
 479
 480         return 0;
 481 }
 482
 483 void
 484 sfw_test_rpc_fini (srpc_client_rpc_t *rpc)
 485 {
 486         sfw_test_unit_t     *tsu = rpc->crpc_priv;
 487         sfw_test_instance_t *tsi = tsu->tsu_instance;
 488
 489         /* Called with hold of tsi->tsi_lock */
 490         LASSERT (list_empty(&rpc->crpc_list));
 491         list_add(&rpc->crpc_list, &tsi->tsi_free_rpcs);
 492 }
 493
 494 int
 495 sfw_load_test (sfw_test_instance_t *tsi)
 496 {
 497         sfw_test_case_t *tsc = sfw_find_test_case(tsi->tsi_service);
 498         int              nrequired = sfw_test_buffers(tsi);
 499         int              nposted;
 500
 501         LASSERT (tsc != NULL);
 502
 503         if (tsi->tsi_is_client) {
 504                 tsi->tsi_ops = tsc->tsc_cli_ops;
 505                 return 0;
 506         }
 507
 508         nposted = srpc_service_add_buffers(tsc->tsc_srv_service, nrequired);
 509         if (nposted != nrequired) {
 510                 CWARN ("Failed to reserve enough buffers: "
 511                        "service %s, %d needed, %d reserved\n",
 512                        tsc->tsc_srv_service->sv_name, nrequired, nposted);
 513                 srpc_service_remove_buffers(tsc->tsc_srv_service, nposted);
 514                 return -ENOMEM;
 515         }
 516
 517         CDEBUG (D_NET, "Reserved %d buffers for test %s\n",
 518                 nposted, tsc->tsc_srv_service->sv_name);
 519         return 0;
 520 }
 521
 522 void
 523 sfw_unload_test (sfw_test_instance_t *tsi)
 524 {
 525         sfw_test_case_t *tsc = sfw_find_test_case(tsi->tsi_service);
 526
 527         LASSERT (tsc != NULL);
 528
 529         if (!tsi->tsi_is_client)
 530                 srpc_service_remove_buffers(tsc->tsc_srv_service,
 531                                             sfw_test_buffers(tsi));
 532         return;
 533 }
 534
 535 void
 536 sfw_destroy_test_instance (sfw_test_instance_t *tsi)
 537 {
 538         srpc_client_rpc_t *rpc;
 539         sfw_test_unit_t   *tsu;
 540
 541         if (!tsi->tsi_is_client) goto clean;
 542
 543         tsi->tsi_ops->tso_fini(tsi);
 544
 545         LASSERT (!tsi->tsi_stopping);
 546         LASSERT (list_empty(&tsi->tsi_active_rpcs));
 547         LASSERT (!sfw_test_active(tsi));
 548
 549         while (!list_empty(&tsi->tsi_units)) {
 550                 tsu = list_entry(tsi->tsi_units.next,
 551                                  sfw_test_unit_t, tsu_list);
 552                 list_del(&tsu->tsu_list);
 553                 LIBCFS_FREE(tsu, sizeof(*tsu));
 554         }
 555
 556         while (!list_empty(&tsi->tsi_free_rpcs)) {
 557                 rpc = list_entry(tsi->tsi_free_rpcs.next,
 558                                  srpc_client_rpc_t, crpc_list);
 559                 list_del(&rpc->crpc_list);
 560                 LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc));
 561         }
 562
 563 clean:
 564         sfw_unload_test(tsi);
 565         LIBCFS_FREE(tsi, sizeof(*tsi));
 566         return;
 567 }
 568
 569 void
 570 sfw_destroy_batch (sfw_batch_t *tsb)
 571 {
 572         sfw_test_instance_t *tsi;
 573
 574         LASSERT (!sfw_batch_active(tsb));
 575         LASSERT (list_empty(&tsb->bat_list));
 576
 577         while (!list_empty(&tsb->bat_tests)) {
 578                 tsi = list_entry(tsb->bat_tests.next,
 579                                  sfw_test_instance_t, tsi_list);
 580                 list_del_init(&tsi->tsi_list);
 581                 sfw_destroy_test_instance(tsi);
 582         }
 583
 584         LIBCFS_FREE(tsb, sizeof(sfw_batch_t));
 585         return;
 586 }
 587
 588 void
 589 sfw_destroy_session (sfw_session_t *sn)
 590 {
 591         sfw_batch_t *batch;
 592
 593         LASSERT (list_empty(&sn->sn_list));
 594         LASSERT (sn != sfw_data.fw_session);
 595
 596         while (!list_empty(&sn->sn_batches)) {
 597                 batch = list_entry(sn->sn_batches.next,
 598                                    sfw_batch_t, bat_list);
 599                 list_del_init(&batch->bat_list);
 600                 sfw_destroy_batch(batch);
 601         }
 602
 603         LIBCFS_FREE(sn, sizeof(*sn));
 604         atomic_dec(&sfw_data.fw_nzombies);
 605         return;
 606 }
 607
 608 void
 609 sfw_unpack_test_req (srpc_msg_t *msg)
 610 {
 611         srpc_test_reqst_t *req = &msg->msg_body.tes_reqst;
 612
 613         LASSERT (msg->msg_type == SRPC_MSG_TEST_REQST);
 614         LASSERT (req->tsr_is_client);
 615
 616         if (msg->msg_magic == SRPC_MSG_MAGIC)
 617                 return; /* no flipping needed */
 618
 619         LASSERT (msg->msg_magic == __swab32(SRPC_MSG_MAGIC));
 620
 621         if (req->tsr_service == SRPC_SERVICE_BRW) {
 622                 test_bulk_req_t *bulk = &req->tsr_u.bulk;
 623
 624                 __swab32s(&bulk->blk_opc);
 625                 __swab32s(&bulk->blk_npg);
 626                 __swab32s(&bulk->blk_flags);
 627                 return;
 628         }
 629
 630         if (req->tsr_service == SRPC_SERVICE_PING) {
 631                 test_ping_req_t *ping = &req->tsr_u.ping;
 632
 633                 __swab32s(&ping->png_size);
 634                 __swab32s(&ping->png_flags);
 635                 return;
 636         }
 637
 638         LBUG ();
 639         return;
 640 }
 641
 642 int
 643 sfw_add_test_instance (sfw_batch_t *tsb, srpc_server_rpc_t *rpc)
 644 {
 645         srpc_msg_t          *msg = &rpc->srpc_reqstbuf->buf_msg;
 646         srpc_test_reqst_t   *req = &msg->msg_body.tes_reqst;
 647         srpc_bulk_t         *bk = rpc->srpc_bulk;
 648         int                  ndest = req->tsr_ndest;
 649         sfw_test_unit_t     *tsu;
 650         sfw_test_instance_t *tsi;
 651         int                  i;
 652         int                  rc;
 653
 654         LIBCFS_ALLOC(tsi, sizeof(*tsi));
 655         if (tsi == NULL) {
 656                 CERROR ("Can't allocate test instance for batch: "LPU64"\n",
 657                         tsb->bat_id.bat_id);
 658                 return -ENOMEM;
 659         }
 660
 661         memset(tsi, 0, sizeof(*tsi));
 662         spin_lock_init(&tsi->tsi_lock);
 663         atomic_set(&tsi->tsi_nactive, 0);
 664         CFS_INIT_LIST_HEAD(&tsi->tsi_units);
 665         CFS_INIT_LIST_HEAD(&tsi->tsi_free_rpcs);
 666         CFS_INIT_LIST_HEAD(&tsi->tsi_active_rpcs);
 667
 668         tsi->tsi_stopping      = 0;
 669         tsi->tsi_batch         = tsb;
 670         tsi->tsi_loop          = req->tsr_loop;
 671         tsi->tsi_concur        = req->tsr_concur;
 672         tsi->tsi_service       = req->tsr_service;
 673         tsi->tsi_is_client     = !!(req->tsr_is_client);
 674         tsi->tsi_stoptsu_onerr = !!(req->tsr_stop_onerr);
 675
 676         rc = sfw_load_test(tsi);
 677         if (rc != 0) {
 678                 LIBCFS_FREE(tsi, sizeof(*tsi));
 679                 return rc;
 680         }
 681
 682         LASSERT (!sfw_batch_active(tsb));
 683
 684         if (!tsi->tsi_is_client) {
 685                 /* it's test server, just add it to tsb */
 686                 list_add_tail(&tsi->tsi_list, &tsb->bat_tests);
 687                 return 0;
 688         }
 689
 690         LASSERT (bk != NULL);
 691 #ifndef __KERNEL__
 692         LASSERT (bk->bk_pages != NULL);
 693 #endif
 694         LASSERT (bk->bk_niov * SFW_ID_PER_PAGE >= ndest);
 695         LASSERT (bk->bk_len >= sizeof(lnet_process_id_t) * ndest);
 696
 697         sfw_unpack_test_req(msg);
 698         memcpy(&tsi->tsi_u, &req->tsr_u, sizeof(tsi->tsi_u));
 699
 700         for (i = 0; i < ndest; i++) {
 701                 lnet_process_id_t *dests;
 702                 lnet_process_id_t  id;
 703                 int                j;
 704
 705 #ifdef __KERNEL__
 706                 dests = cfs_page_address(bk->bk_iovs[i / SFW_ID_PER_PAGE].kiov_page);
 707                 LASSERT (dests != NULL);  /* my pages are within KVM always */
 708 #else
 709                 dests = cfs_page_address(bk->bk_pages[i / SFW_ID_PER_PAGE]);
 710 #endif
 711                 id = dests[i % SFW_ID_PER_PAGE];
 712                 if (msg->msg_magic != SRPC_MSG_MAGIC)
 713                         sfw_unpack_id(id);
 714
 715                 for (j = 0; j < tsi->tsi_concur; j++) {
 716                         LIBCFS_ALLOC(tsu, sizeof(sfw_test_unit_t));
 717                         if (tsu == NULL) {
 718                                 rc = -ENOMEM;
 719                                 CERROR ("Can't allocate tsu for %d\n",
 720                                         tsi->tsi_service);
 721                                 goto error;
 722                         }
 723
 724                         tsu->tsu_dest     = id;
 725                         tsu->tsu_instance = tsi;
 726                         tsu->tsu_private  = NULL;
 727                         list_add_tail(&tsu->tsu_list, &tsi->tsi_units);
 728                 }
 729         }
 730
 731         rc = tsi->tsi_ops->tso_init(tsi);
 732         if (rc == 0) {
 733                 list_add_tail(&tsi->tsi_list, &tsb->bat_tests);
 734                 return 0;
 735         }
 736
 737 error:
 738         LASSERT (rc != 0);
 739         sfw_destroy_test_instance(tsi);
 740         return rc;
 741 }
 742
 743 static void
 744 sfw_test_unit_done (sfw_test_unit_t *tsu)
 745 {
 746         sfw_test_instance_t *tsi = tsu->tsu_instance;
 747         sfw_batch_t         *tsb = tsi->tsi_batch;
 748         sfw_session_t       *sn = tsb->bat_session;
 749
 750         LASSERT (sfw_test_active(tsi));
 751
 752         if (!atomic_dec_and_test(&tsi->tsi_nactive))
 753                 return;
 754
 755         /* the test instance is done */
 756         spin_lock(&tsi->tsi_lock);
 757
 758         tsi->tsi_stopping = 0;
 759
 760         spin_unlock(&tsi->tsi_lock);
 761
 762         spin_lock(&sfw_data.fw_lock);
 763
 764         if (!atomic_dec_and_test(&tsb->bat_nactive) || /* tsb still active */
 765             sn == sfw_data.fw_session) {               /* sn also active */
 766                 spin_unlock(&sfw_data.fw_lock);
 767                 return;
 768         }
 769
 770         LASSERT (!list_empty(&sn->sn_list)); /* I'm a zombie! */
 771
 772         list_for_each_entry (tsb, &sn->sn_batches, bat_list) {
 773                 if (sfw_batch_active(tsb)) {
 774                         spin_unlock(&sfw_data.fw_lock);
 775                         return;
 776                 }
 777         }
 778
 779         list_del_init(&sn->sn_list);
 780         spin_unlock(&sfw_data.fw_lock);
 781
 782         sfw_destroy_session(sn);
 783         return;
 784 }
 785
 786 void
 787 sfw_test_rpc_done (srpc_client_rpc_t *rpc)
 788 {
 789         sfw_test_unit_t     *tsu = rpc->crpc_priv;
 790         sfw_test_instance_t *tsi = tsu->tsu_instance;
 791         int                  done = 0;
 792
 793         tsi->tsi_ops->tso_done_rpc(tsu, rpc);
 794
 795         spin_lock(&tsi->tsi_lock);
 796
 797         LASSERT (sfw_test_active(tsi));
 798         LASSERT (!list_empty(&rpc->crpc_list));
 799
 800         list_del_init(&rpc->crpc_list);
 801
 802         /* batch is stopping or loop is done or get error */
 803         if (tsi->tsi_stopping ||
 804             tsu->tsu_loop == 0 ||
 805             (rpc->crpc_status != 0 && tsi->tsi_stoptsu_onerr))
 806                 done = 1;
 807
 808         /* dec ref for poster */
 809         srpc_client_rpc_decref(rpc);
 810
 811         spin_unlock(&tsi->tsi_lock);
 812
 813         if (!done) {
 814                 swi_schedule_workitem(&tsu->tsu_worker);
 815                 return;
 816         }
 817
 818         sfw_test_unit_done(tsu);
 819         return;
 820 }
 821
 822 int
 823 sfw_create_test_rpc (sfw_test_unit_t *tsu, lnet_process_id_t peer,
 824                      int nblk, int blklen, srpc_client_rpc_t **rpcpp)
 825 {
 826         srpc_client_rpc_t   *rpc = NULL;
 827         sfw_test_instance_t *tsi = tsu->tsu_instance;
 828
 829         spin_lock(&tsi->tsi_lock);
 830
 831         LASSERT (sfw_test_active(tsi));
 832
 833         if (!list_empty(&tsi->tsi_free_rpcs)) {
 834                 /* pick request from buffer */
 835                 rpc = list_entry(tsi->tsi_free_rpcs.next,
 836                                  srpc_client_rpc_t, crpc_list);
 837                 LASSERT (nblk == rpc->crpc_bulk.bk_niov);
 838                 list_del_init(&rpc->crpc_list);
 839
 840                 srpc_init_client_rpc(rpc, peer, tsi->tsi_service, nblk,
 841                                      blklen, sfw_test_rpc_done,
 842                                      sfw_test_rpc_fini, tsu);
 843         }
 844
 845         spin_unlock(&tsi->tsi_lock);
 846
 847         if (rpc == NULL)
 848                 rpc = srpc_create_client_rpc(peer, tsi->tsi_service, nblk,
 849                                              blklen, sfw_test_rpc_done,
 850                                              sfw_test_rpc_fini, tsu);
 851         if (rpc == NULL) {
 852                 CERROR ("Can't create rpc for test %d\n", tsi->tsi_service);
 853                 return -ENOMEM;
 854         }
 855
 856         *rpcpp = rpc;
 857         return 0;
 858 }
 859
 860 int
 861 sfw_run_test (swi_workitem_t *wi)
 862 {
 863         sfw_test_unit_t     *tsu = wi->wi_data;
 864         sfw_test_instance_t *tsi = tsu->tsu_instance;
 865         srpc_client_rpc_t   *rpc = NULL;
 866
 867         LASSERT (wi == &tsu->tsu_worker);
 868
 869         if (tsi->tsi_ops->tso_prep_rpc(tsu, tsu->tsu_dest, &rpc) != 0) {
 870                 LASSERT (rpc == NULL);
 871                 goto test_done;
 872         }
 873
 874         LASSERT (rpc != NULL);
 875
 876         spin_lock(&tsi->tsi_lock);
 877
 878         if (tsi->tsi_stopping) {
 879                 list_add(&rpc->crpc_list, &tsi->tsi_free_rpcs);
 880                 spin_unlock(&tsi->tsi_lock);
 881                 goto test_done;
 882         }
 883
 884         if (tsu->tsu_loop > 0)
 885                 tsu->tsu_loop--;
 886
 887         list_add_tail(&rpc->crpc_list, &tsi->tsi_active_rpcs);
 888         spin_unlock(&tsi->tsi_lock);
 889
 890         rpc->crpc_timeout = SFW_TEST_RPC_TIMEOUT;
 891
 892         spin_lock(&rpc->crpc_lock);
 893         srpc_post_rpc(rpc);
 894         spin_unlock(&rpc->crpc_lock);
 895         return 0;
 896
 897 test_done:
 898         /*
 899          * No one can schedule me now since:
 900          * - previous RPC, if any, has done and
 901          * - no new RPC is initiated.
 902          * - my batch is still active; no one can run it again now.
 903          * Cancel pending schedules and prevent future schedule attempts:
 904          */
 905         swi_kill_workitem(wi);
 906         sfw_test_unit_done(tsu);
 907         return 1;
 908 }
 909
 910 int
 911 sfw_run_batch (sfw_batch_t *tsb)
 912 {
 913         swi_workitem_t      *wi;
 914         sfw_test_unit_t     *tsu;
 915         sfw_test_instance_t *tsi;
 916
 917         if (sfw_batch_active(tsb)) {
 918                 CDEBUG (D_NET, "Can't start active batch: "LPU64" (%d)\n",
 919                         tsb->bat_id.bat_id, atomic_read(&tsb->bat_nactive));
 920                 return -EPERM;
 921         }
 922
 923         list_for_each_entry (tsi, &tsb->bat_tests, tsi_list) {
 924                 if (!tsi->tsi_is_client) /* skip server instances */
 925                         continue;
 926
 927                 LASSERT (!tsi->tsi_stopping);
 928                 LASSERT (!sfw_test_active(tsi));
 929
 930                 atomic_inc(&tsb->bat_nactive);
 931
 932                 list_for_each_entry (tsu, &tsi->tsi_units, tsu_list) {
 933                         atomic_inc(&tsi->tsi_nactive);
 934                         tsu->tsu_loop = tsi->tsi_loop;
 935                         wi = &tsu->tsu_worker;
 936                         swi_init_workitem(wi, tsu, sfw_run_test);
 937                         swi_schedule_workitem(wi);
 938                 }
 939         }
 940
 941         return 0;
 942 }
 943
 944 int
 945 sfw_stop_batch (sfw_batch_t *tsb, int force)
 946 {
 947         sfw_test_instance_t *tsi;
 948         srpc_client_rpc_t   *rpc;
 949
 950         if (!sfw_batch_active(tsb))
 951                 return -EPERM;
 952
 953         list_for_each_entry (tsi, &tsb->bat_tests, tsi_list) {
 954                 spin_lock(&tsi->tsi_lock);
 955
 956                 if (!tsi->tsi_is_client ||
 957                     !sfw_test_active(tsi) || tsi->tsi_stopping) {
 958                         spin_unlock(&tsi->tsi_lock);
 959                         continue;
 960                 }
 961
 962                 tsi->tsi_stopping = 1;
 963
 964                 if (!force) {
 965                         spin_unlock(&tsi->tsi_lock);
 966                         continue;
 967                 }
 968
 969                 /* abort launched rpcs in the test */
 970                 list_for_each_entry (rpc, &tsi->tsi_active_rpcs, crpc_list) {
 971                         spin_lock(&rpc->crpc_lock);
 972
 973                         srpc_abort_rpc(rpc, -EINTR);
 974
 975                         spin_unlock(&rpc->crpc_lock);
 976                 }
 977
 978                 spin_unlock(&tsi->tsi_lock);
 979         }
 980
 981         return 0;
 982 }
 983
 984 int
 985 sfw_query_batch (sfw_batch_t *tsb, int testidx, srpc_batch_reply_t *reply)
 986 {
 987         sfw_test_instance_t *tsi;
 988
 989         if (testidx < 0)
 990                 return -EINVAL;
 991
 992         if (testidx == 0) {
 993                 reply->bar_active = atomic_read(&tsb->bat_nactive);
 994                 return 0;
 995         }
 996
 997         list_for_each_entry (tsi, &tsb->bat_tests, tsi_list) {
 998                 if (testidx-- > 1)
 999                         continue;
1000
1001                 reply->bar_active = atomic_read(&tsi->tsi_nactive);
1002                 return 0;
1003         }
1004
1005         return -ENOENT;
1006 }
1007
1008 void
1009 sfw_free_pages (srpc_server_rpc_t *rpc)
1010 {
1011         srpc_free_bulk(rpc->srpc_bulk);
1012         rpc->srpc_bulk = NULL;
1013 }
1014
1015 int
1016 sfw_alloc_pages (srpc_server_rpc_t *rpc, int npages, int sink)
1017 {
1018         LASSERT (rpc->srpc_bulk == NULL);
1019         LASSERT (npages > 0 && npages <= LNET_MAX_IOV);
1020
1021         rpc->srpc_bulk = srpc_alloc_bulk(npages, sink);
1022         if (rpc->srpc_bulk == NULL) return -ENOMEM;
1023
1024         return 0;
1025 }
1026
1027 int
1028 sfw_add_test (srpc_server_rpc_t *rpc)
1029 {
1030         sfw_session_t     *sn = sfw_data.fw_session;
1031         srpc_test_reply_t *reply = &rpc->srpc_replymsg.msg_body.tes_reply;
1032         srpc_test_reqst_t *request;
1033         int                rc;
1034         sfw_batch_t       *bat;
1035
1036         request = &rpc->srpc_reqstbuf->buf_msg.msg_body.tes_reqst;
1037         reply->tsr_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id;
1038
1039         if (request->tsr_loop == 0 ||
1040             request->tsr_concur == 0 ||
1041             request->tsr_sid.ses_nid == LNET_NID_ANY ||
1042             request->tsr_ndest > SFW_MAX_NDESTS ||
1043             (request->tsr_is_client && request->tsr_ndest == 0) ||
1044             request->tsr_concur > SFW_MAX_CONCUR ||
1045             request->tsr_service > SRPC_SERVICE_MAX_ID ||
1046             request->tsr_service <= SRPC_FRAMEWORK_SERVICE_MAX_ID) {
1047                 reply->tsr_status = EINVAL;
1048                 return 0;
1049         }
1050
1051         if (sn == NULL || !sfw_sid_equal(request->tsr_sid, sn->sn_id) ||
1052             sfw_find_test_case(request->tsr_service) == NULL) {
1053                 reply->tsr_status = ENOENT;
1054                 return 0;
1055         }
1056
1057         bat = sfw_bid2batch(request->tsr_bid);
1058         if (bat == NULL) {
1059                 CERROR ("Dropping RPC (%s) from %s under memory pressure.\n",
1060                         rpc->srpc_service->sv_name,
1061                         libcfs_id2str(rpc->srpc_peer));
1062                 return -ENOMEM;
1063         }
1064
1065         if (sfw_batch_active(bat)) {
1066                 reply->tsr_status = EBUSY;
1067                 return 0;
1068         }
1069
1070         if (request->tsr_is_client && rpc->srpc_bulk == NULL) {
1071                 /* rpc will be resumed later in sfw_bulk_ready */
1072                 return sfw_alloc_pages(rpc,
1073                                        sfw_id_pages(request->tsr_ndest), 1);
1074         }
1075
1076         rc = sfw_add_test_instance(bat, rpc);
1077         CDEBUG (rc == 0 ? D_NET : D_WARNING,
1078                 "%s test: sv %d %s, loop %d, concur %d, ndest %d\n",
1079                 rc == 0 ? "Added" : "Failed to add", request->tsr_service,
1080                 request->tsr_is_client ? "client" : "server",
1081                 request->tsr_loop, request->tsr_concur, request->tsr_ndest);
1082
1083         reply->tsr_status = (rc < 0) ? -rc : rc;
1084         return 0;
1085 }
1086
1087 int
1088 sfw_control_batch (srpc_batch_reqst_t *request, srpc_batch_reply_t *reply)
1089 {
1090         sfw_session_t *sn = sfw_data.fw_session;
1091         int            rc = 0;
1092         sfw_batch_t   *bat;
1093
1094         reply->bar_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id;
1095
1096         if (sn == NULL || !sfw_sid_equal(request->bar_sid, sn->sn_id)) {
1097                 reply->bar_status = ESRCH;
1098                 return 0;
1099         }
1100
1101         bat = sfw_find_batch(request->bar_bid);
1102         if (bat == NULL) {
1103                 reply->bar_status = ENOENT;
1104                 return 0;
1105         }
1106
1107         switch (request->bar_opc) {
1108         case SRPC_BATCH_OPC_RUN:
1109                 rc = sfw_run_batch(bat);
1110                 break;
1111
1112         case SRPC_BATCH_OPC_STOP:
1113                 rc = sfw_stop_batch(bat, request->bar_arg);
1114                 break;
1115
1116         case SRPC_BATCH_OPC_QUERY:
1117                 rc = sfw_query_batch(bat, request->bar_testidx, reply);
1118                 break;
1119
1120         default:
1121                 return -EINVAL; /* drop it */
1122         }
1123
1124         reply->bar_status = (rc < 0) ? -rc : rc;
1125         return 0;
1126 }
1127
1128 int
1129 sfw_handle_server_rpc (srpc_server_rpc_t *rpc)
1130 {
1131         srpc_service_t *sv = rpc->srpc_service;
1132         srpc_msg_t     *reply = &rpc->srpc_replymsg;
1133         srpc_msg_t     *request = &rpc->srpc_reqstbuf->buf_msg;
1134         int             rc = 0;
1135
1136         LASSERT (sfw_data.fw_active_srpc == NULL);
1137         LASSERT (sv->sv_id <= SRPC_FRAMEWORK_SERVICE_MAX_ID);
1138
1139         spin_lock(&sfw_data.fw_lock);
1140
1141         if (sfw_data.fw_shuttingdown) {
1142                 spin_unlock(&sfw_data.fw_lock);
1143                 return -ESHUTDOWN;
1144         }
1145
1146         /* Remove timer to avoid racing with it or expiring active session */
1147         if (sfw_del_session_timer() != 0) {
1148                 CERROR ("Dropping RPC (%s) from %s: racing with expiry timer.",
1149                         sv->sv_name, libcfs_id2str(rpc->srpc_peer));
1150                 spin_unlock(&sfw_data.fw_lock);
1151                 return -EAGAIN;
1152         }
1153
1154         sfw_data.fw_active_srpc = rpc;
1155         spin_unlock(&sfw_data.fw_lock);
1156
1157         sfw_unpack_message(request);
1158         LASSERT (request->msg_type == srpc_service2request(sv->sv_id));
1159
1160         switch(sv->sv_id) {
1161         default:
1162                 LBUG ();
1163         case SRPC_SERVICE_TEST:
1164                 rc = sfw_add_test(rpc);
1165                 break;
1166
1167         case SRPC_SERVICE_BATCH:
1168                 rc = sfw_control_batch(&request->msg_body.bat_reqst,
1169                                        &reply->msg_body.bat_reply);
1170                 break;
1171
1172         case SRPC_SERVICE_QUERY_STAT:
1173                 rc = sfw_get_stats(&request->msg_body.stat_reqst,
1174                                    &reply->msg_body.stat_reply);
1175                 break;
1176
1177         case SRPC_SERVICE_DEBUG:
1178                 rc = sfw_debug_session(&request->msg_body.dbg_reqst,
1179                                        &reply->msg_body.dbg_reply);
1180                 break;
1181
1182         case SRPC_SERVICE_MAKE_SESSION:
1183                 rc = sfw_make_session(&request->msg_body.mksn_reqst,
1184                                       &reply->msg_body.mksn_reply);
1185                 break;
1186
1187         case SRPC_SERVICE_REMOVE_SESSION:
1188                 rc = sfw_remove_session(&request->msg_body.rmsn_reqst,
1189                                         &reply->msg_body.rmsn_reply);
1190                 break;
1191         }
1192
1193         rpc->srpc_done = sfw_server_rpc_done;
1194         spin_lock(&sfw_data.fw_lock);
1195
1196 #ifdef __KERNEL__
1197         if (!sfw_data.fw_shuttingdown)
1198                 sfw_add_session_timer();
1199 #else
1200         LASSERT (!sfw_data.fw_shuttingdown);
1201         sfw_add_session_timer();
1202 #endif
1203
1204         sfw_data.fw_active_srpc = NULL;
1205         spin_unlock(&sfw_data.fw_lock);
1206         return rc;
1207 }
1208
1209 int
1210 sfw_bulk_ready (srpc_server_rpc_t *rpc, int status)
1211 {
1212         srpc_service_t *sv = rpc->srpc_service;
1213         int             rc;
1214
1215         LASSERT (rpc->srpc_bulk != NULL);
1216         LASSERT (sv->sv_id == SRPC_SERVICE_TEST);
1217         LASSERT (sfw_data.fw_active_srpc == NULL);
1218         LASSERT (rpc->srpc_reqstbuf->buf_msg.msg_body.tes_reqst.tsr_is_client);
1219
1220         spin_lock(&sfw_data.fw_lock);
1221
1222         if (status != 0) {
1223                 CERROR ("Bulk transfer failed for RPC: "
1224                         "service %s, peer %s, status %d\n",
1225                         sv->sv_name, libcfs_id2str(rpc->srpc_peer), status);
1226                 spin_unlock(&sfw_data.fw_lock);
1227                 return -EIO;
1228         }
1229
1230         if (sfw_data.fw_shuttingdown) {
1231                 spin_unlock(&sfw_data.fw_lock);
1232                 return -ESHUTDOWN;
1233         }
1234
1235         if (sfw_del_session_timer() != 0) {
1236                 CERROR ("Dropping RPC (%s) from %s: racing with expiry timer",
1237                         sv->sv_name, libcfs_id2str(rpc->srpc_peer));
1238                 spin_unlock(&sfw_data.fw_lock);
1239                 return -EAGAIN;
1240         }
1241
1242         sfw_data.fw_active_srpc = rpc;
1243         spin_unlock(&sfw_data.fw_lock);
1244
1245         rc = sfw_add_test(rpc);
1246
1247         spin_lock(&sfw_data.fw_lock);
1248
1249 #ifdef __KERNEL__
1250         if (!sfw_data.fw_shuttingdown)
1251                 sfw_add_session_timer();
1252 #else
1253         LASSERT (!sfw_data.fw_shuttingdown);
1254         sfw_add_session_timer();
1255 #endif
1256
1257         sfw_data.fw_active_srpc = NULL;
1258         spin_unlock(&sfw_data.fw_lock);
1259         return rc;
1260 }
1261
1262 srpc_client_rpc_t *
1263 sfw_create_rpc (lnet_process_id_t peer, int service,
1264                 int nbulkiov, int bulklen,
1265                 void (*done) (srpc_client_rpc_t *), void *priv)
1266 {
1267         srpc_client_rpc_t *rpc;
1268
1269         spin_lock(&sfw_data.fw_lock);
1270
1271         LASSERT (!sfw_data.fw_shuttingdown);
1272         LASSERT (service <= SRPC_FRAMEWORK_SERVICE_MAX_ID);
1273
1274         if (nbulkiov == 0 && !list_empty(&sfw_data.fw_zombie_rpcs)) {
1275                 rpc = list_entry(sfw_data.fw_zombie_rpcs.next,
1276                                  srpc_client_rpc_t, crpc_list);
1277                 list_del(&rpc->crpc_list);
1278                 spin_unlock(&sfw_data.fw_lock);
1279
1280                 srpc_init_client_rpc(rpc, peer, service, 0, 0,
1281                                      done, sfw_client_rpc_fini, priv);
1282                 return rpc;
1283         }
1284
1285         spin_unlock(&sfw_data.fw_lock);
1286
1287         rpc = srpc_create_client_rpc(peer, service, nbulkiov, bulklen, done,
1288                                      nbulkiov != 0 ? NULL : sfw_client_rpc_fini,
1289                                      priv);
1290         return rpc;
1291 }
1292
1293 void
1294 sfw_unpack_message (srpc_msg_t *msg)
1295 {
1296         if (msg->msg_magic == SRPC_MSG_MAGIC)
1297                 return; /* no flipping needed */
1298
1299         LASSERT (msg->msg_magic == __swab32(SRPC_MSG_MAGIC));
1300
1301         __swab32s(&msg->msg_type);
1302
1303         if (msg->msg_type == SRPC_MSG_STAT_REQST) {
1304                 srpc_stat_reqst_t *req = &msg->msg_body.stat_reqst;
1305
1306                 __swab32s(&req->str_type);
1307                 __swab64s(&req->str_rpyid);
1308                 sfw_unpack_sid(req->str_sid);
1309                 return;
1310         }
1311
1312         if (msg->msg_type == SRPC_MSG_STAT_REPLY) {
1313                 srpc_stat_reply_t *rep = &msg->msg_body.stat_reply;
1314
1315                 __swab32s(&rep->str_status);
1316                 sfw_unpack_sid(rep->str_sid);
1317                 sfw_unpack_fw_counters(rep->str_fw);
1318                 sfw_unpack_rpc_counters(rep->str_rpc);
1319                 sfw_unpack_lnet_counters(rep->str_lnet);
1320                 return;
1321         }
1322
1323         if (msg->msg_type == SRPC_MSG_MKSN_REQST) {
1324                 srpc_mksn_reqst_t *req = &msg->msg_body.mksn_reqst;
1325
1326                 __swab64s(&req->mksn_rpyid);
1327                 __swab32s(&req->mksn_force);
1328                 sfw_unpack_sid(req->mksn_sid);
1329                 return;
1330         }
1331
1332         if (msg->msg_type == SRPC_MSG_MKSN_REPLY) {
1333                 srpc_mksn_reply_t *rep = &msg->msg_body.mksn_reply;
1334
1335                 __swab32s(&rep->mksn_status);
1336                 __swab32s(&rep->mksn_timeout);
1337                 sfw_unpack_sid(rep->mksn_sid);
1338                 return;
1339         }
1340
1341         if (msg->msg_type == SRPC_MSG_RMSN_REQST) {
1342                 srpc_rmsn_reqst_t *req = &msg->msg_body.rmsn_reqst;
1343
1344                 __swab64s(&req->rmsn_rpyid);
1345                 sfw_unpack_sid(req->rmsn_sid);
1346                 return;
1347         }
1348
1349         if (msg->msg_type == SRPC_MSG_RMSN_REPLY) {
1350                 srpc_rmsn_reply_t *rep = &msg->msg_body.rmsn_reply;
1351
1352                 __swab32s(&rep->rmsn_status);
1353                 sfw_unpack_sid(rep->rmsn_sid);
1354                 return;
1355         }
1356
1357         if (msg->msg_type == SRPC_MSG_DEBUG_REQST) {
1358                 srpc_debug_reqst_t *req = &msg->msg_body.dbg_reqst;
1359
1360                 __swab64s(&req->dbg_rpyid);
1361                 __swab32s(&req->dbg_flags);
1362                 sfw_unpack_sid(req->dbg_sid);
1363                 return;
1364         }
1365
1366         if (msg->msg_type == SRPC_MSG_DEBUG_REPLY) {
1367                 srpc_debug_reply_t *rep = &msg->msg_body.dbg_reply;
1368
1369                 __swab32s(&rep->dbg_nbatch);
1370                 __swab32s(&rep->dbg_timeout);
1371                 sfw_unpack_sid(rep->dbg_sid);
1372                 return;
1373         }
1374
1375         if (msg->msg_type == SRPC_MSG_BATCH_REQST) {
1376                 srpc_batch_reqst_t *req = &msg->msg_body.bat_reqst;
1377
1378                 __swab32s(&req->bar_opc);
1379                 __swab64s(&req->bar_rpyid);
1380                 __swab32s(&req->bar_testidx);
1381                 __swab32s(&req->bar_arg);
1382                 sfw_unpack_sid(req->bar_sid);
1383                 __swab64s(&req->bar_bid.bat_id);
1384                 return;
1385         }
1386
1387         if (msg->msg_type == SRPC_MSG_BATCH_REPLY) {
1388                 srpc_batch_reply_t *rep = &msg->msg_body.bat_reply;
1389
1390                 __swab32s(&rep->bar_status);
1391                 sfw_unpack_sid(rep->bar_sid);
1392                 return;
1393         }
1394
1395         if (msg->msg_type == SRPC_MSG_TEST_REQST) {
1396                 srpc_test_reqst_t *req = &msg->msg_body.tes_reqst;
1397
1398                 __swab64s(&req->tsr_rpyid);
1399                 __swab64s(&req->tsr_bulkid);
1400                 __swab32s(&req->tsr_loop);
1401                 __swab32s(&req->tsr_ndest);
1402                 __swab32s(&req->tsr_concur);
1403                 __swab32s(&req->tsr_service);
1404                 sfw_unpack_sid(req->tsr_sid);
1405                 __swab64s(&req->tsr_bid.bat_id);
1406                 return;
1407         }
1408
1409         if (msg->msg_type == SRPC_MSG_TEST_REPLY) {
1410                 srpc_test_reply_t *rep = &msg->msg_body.tes_reply;
1411
1412                 __swab32s(&rep->tsr_status);
1413                 sfw_unpack_sid(rep->tsr_sid);
1414                 return;
1415         }
1416
1417         if (msg->msg_type == SRPC_MSG_JOIN_REQST) {
1418                 srpc_join_reqst_t *req = &msg->msg_body.join_reqst;
1419
1420                 __swab64s(&req->join_rpyid);
1421                 sfw_unpack_sid(req->join_sid);
1422                 return;
1423         }
1424
1425         if (msg->msg_type == SRPC_MSG_JOIN_REPLY) {
1426                 srpc_join_reply_t *rep = &msg->msg_body.join_reply;
1427
1428                 __swab32s(&rep->join_status);
1429                 __swab32s(&rep->join_timeout);
1430                 sfw_unpack_sid(rep->join_sid);
1431                 return;
1432         }
1433
1434         LBUG ();
1435         return;
1436 }
1437
1438 void
1439 sfw_abort_rpc (srpc_client_rpc_t *rpc)
1440 {
1441         LASSERT (atomic_read(&rpc->crpc_refcount) > 0);
1442         LASSERT (rpc->crpc_service <= SRPC_FRAMEWORK_SERVICE_MAX_ID);
1443
1444         spin_lock(&rpc->crpc_lock);
1445         srpc_abort_rpc(rpc, -EINTR);
1446         spin_unlock(&rpc->crpc_lock);
1447         return;
1448 }
1449
1450 void
1451 sfw_post_rpc (srpc_client_rpc_t *rpc)
1452 {
1453         spin_lock(&rpc->crpc_lock);
1454
1455         LASSERT (!rpc->crpc_closed);
1456         LASSERT (!rpc->crpc_aborted);
1457         LASSERT (list_empty(&rpc->crpc_list));
1458         LASSERT (!sfw_data.fw_shuttingdown);
1459
1460         rpc->crpc_timeout = SFW_CLIENT_RPC_TIMEOUT;
1461         srpc_post_rpc(rpc);
1462
1463         spin_unlock(&rpc->crpc_lock);
1464         return;
1465 }
1466
1467 static srpc_service_t sfw_services[] =
1468 {
1469         {
1470                 .sv_name = "debug",
1471                 .sv_id   = SRPC_SERVICE_DEBUG,
1472         },
1473         {
1474                 .sv_name = "query stats",
1475                 .sv_id   = SRPC_SERVICE_QUERY_STAT,
1476         },
1477         {
1478                 .sv_name = "make sessin",
1479                 .sv_id   = SRPC_SERVICE_MAKE_SESSION,
1480         },
1481         {
1482                 .sv_name = "remove session",
1483                 .sv_id   = SRPC_SERVICE_REMOVE_SESSION,
1484         },
1485         {
1486                 .sv_name = "batch service",
1487                 .sv_id   = SRPC_SERVICE_BATCH,
1488         },
1489         {
1490                 .sv_name = "test service",
1491                 .sv_id   = SRPC_SERVICE_TEST,
1492         },
1493         {       .sv_name = NULL, }
1494 };
1495
1496 extern sfw_test_client_ops_t ping_test_client;
1497 extern srpc_service_t        ping_test_service;
1498
1499 extern sfw_test_client_ops_t brw_test_client;
1500 extern srpc_service_t        brw_test_service;
1501
1502 int
1503 sfw_startup (void)
1504 {
1505         int              i;
1506         int              rc;
1507         int              error;
1508         srpc_service_t  *sv;
1509         sfw_test_case_t *tsc;
1510
1511 #ifndef __KERNEL__
1512         char *s;
1513
1514         s = getenv("SESSION_TIMEOUT");
1515         session_timeout = s != NULL ? atoi(s) : session_timeout;
1516
1517         s = getenv("BRW_INJECT_ERRORS");
1518         brw_inject_errors = s != NULL ? atoi(s) : brw_inject_errors;
1519 #endif
1520
1521         if (session_timeout < 0) {
1522                 CERROR ("Session timeout must be non-negative: %d\n",
1523                         session_timeout);
1524                 return -EINVAL;
1525         }
1526
1527         if (session_timeout == 0)
1528                 CWARN ("Zero session_timeout specified "
1529                        "- test sessions never expire.\n");
1530
1531         memset(&sfw_data, 0, sizeof(struct smoketest_framework));
1532
1533         sfw_data.fw_session     = NULL;
1534         sfw_data.fw_active_srpc = NULL;
1535         spin_lock_init(&sfw_data.fw_lock);
1536         atomic_set(&sfw_data.fw_nzombies, 0);
1537         CFS_INIT_LIST_HEAD(&sfw_data.fw_tests);
1538         CFS_INIT_LIST_HEAD(&sfw_data.fw_zombie_rpcs);
1539         CFS_INIT_LIST_HEAD(&sfw_data.fw_zombie_sessions);
1540
1541         rc = sfw_register_test(&brw_test_service, &brw_test_client);
1542         LASSERT (rc == 0);
1543         rc = sfw_register_test(&ping_test_service, &ping_test_client);
1544         LASSERT (rc == 0);
1545
1546         error = 0;
1547         list_for_each_entry (tsc, &sfw_data.fw_tests, tsc_list) {
1548                 sv = tsc->tsc_srv_service;
1549                 sv->sv_concur = SFW_TEST_CONCURRENCY;
1550
1551                 rc = srpc_add_service(sv);
1552                 LASSERT (rc != -EBUSY);
1553                 if (rc != 0) {
1554                         CWARN ("Failed to add %s service: %d\n",
1555                                sv->sv_name, rc);
1556                         error = rc;
1557                 }
1558         }
1559
1560         for (i = 0; ; i++) {
1561                 sv = &sfw_services[i];
1562                 if (sv->sv_name == NULL) break;
1563
1564                 sv->sv_bulk_ready = NULL;
1565                 sv->sv_handler    = sfw_handle_server_rpc;
1566                 sv->sv_concur     = SFW_SERVICE_CONCURRENCY;
1567                 if (sv->sv_id == SRPC_SERVICE_TEST)
1568                         sv->sv_bulk_ready = sfw_bulk_ready;
1569
1570                 rc = srpc_add_service(sv);
1571                 LASSERT (rc != -EBUSY);
1572                 if (rc != 0) {
1573                         CWARN ("Failed to add %s service: %d\n",
1574                                sv->sv_name, rc);
1575                         error = rc;
1576                 }
1577
1578                 /* about to sfw_shutdown, no need to add buffer */
1579                 if (error) continue;
1580
1581                 rc = srpc_service_add_buffers(sv, SFW_POST_BUFFERS);
1582                 if (rc != SFW_POST_BUFFERS) {
1583                         CWARN ("Failed to reserve enough buffers: "
1584                                "service %s, %d needed, %d reserved\n",
1585                                sv->sv_name, SFW_POST_BUFFERS, rc);
1586                         error = -ENOMEM;
1587                 }
1588         }
1589
1590         if (error != 0)
1591                 sfw_shutdown();
1592         return error;
1593 }
1594
1595 void
1596 sfw_shutdown (void)
1597 {
1598         srpc_service_t  *sv;
1599         sfw_test_case_t *tsc;
1600         int              i;
1601
1602         spin_lock(&sfw_data.fw_lock);
1603
1604         sfw_data.fw_shuttingdown = 1;
1605 #ifdef __KERNEL__
1606         lst_wait_until(sfw_data.fw_active_srpc == NULL, sfw_data.fw_lock,
1607                        "waiting for active RPC to finish.\n");
1608 #else
1609         LASSERT (sfw_data.fw_active_srpc == NULL);
1610 #endif
1611
1612         if (sfw_del_session_timer() != 0)
1613                 lst_wait_until(sfw_data.fw_session == NULL, sfw_data.fw_lock,
1614                                "waiting for session timer to explode.\n");
1615
1616         sfw_deactivate_session();
1617         lst_wait_until(atomic_read(&sfw_data.fw_nzombies) == 0,
1618                        sfw_data.fw_lock,
1619                        "waiting for %d zombie sessions to die.\n",
1620                        atomic_read(&sfw_data.fw_nzombies));
1621
1622         spin_unlock(&sfw_data.fw_lock);
1623
1624         for (i = 0; ; i++) {
1625                 sv = &sfw_services[i];
1626                 if (sv->sv_name == NULL)
1627                         break;
1628
1629                 srpc_shutdown_service(sv);
1630                 srpc_remove_service(sv);
1631         }
1632
1633         list_for_each_entry (tsc, &sfw_data.fw_tests, tsc_list) {
1634                 sv = tsc->tsc_srv_service;
1635                 srpc_shutdown_service(sv);
1636                 srpc_remove_service(sv);
1637         }
1638
1639         while (!list_empty(&sfw_data.fw_zombie_rpcs)) {
1640                 srpc_client_rpc_t *rpc;
1641
1642                 rpc = list_entry(sfw_data.fw_zombie_rpcs.next,
1643                                  srpc_client_rpc_t, crpc_list);
1644                 list_del(&rpc->crpc_list);
1645
1646                 LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc));
1647         }
1648
1649         for (i = 0; ; i++) {
1650                 sv = &sfw_services[i];
1651                 if (sv->sv_name == NULL)
1652                         break;
1653
1654                 srpc_wait_service_shutdown(sv);
1655         }
1656
1657         while (!list_empty(&sfw_data.fw_tests)) {
1658                 tsc = list_entry(sfw_data.fw_tests.next,
1659                                  sfw_test_case_t, tsc_list);
1660
1661                 srpc_wait_service_shutdown(tsc->tsc_srv_service);
1662
1663                 list_del(&tsc->tsc_list);
1664                 LIBCFS_FREE(tsc, sizeof(*tsc));
1665         }
1666
1667         return;
1668 }