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 static int session_timeout = 100;
  19 CFS_MODULE_PARM(session_timeout, "i", int, 0444,
  20                 "test session timeout in seconds (100 by default, 0 == never)");
  21
  22 #define SFW_TEST_CONCURRENCY     128
  23 #define SFW_TEST_RPC_TIMEOUT     64
  24 #define SFW_CLIENT_RPC_TIMEOUT   64  /* in seconds */
  25 #define SFW_EXTRA_TEST_BUFFERS   8 /* tolerate buggy peers with extra buffers */
  26
  27 #define sfw_test_buffers(tsi)    ((tsi)->tsi_loop + SFW_EXTRA_TEST_BUFFERS)
  28
  29 #define sfw_unpack_id(id)               \
  30 do {                                    \
  31         __swab64s(&(id).nid);           \
  32         __swab32s(&(id).pid);           \
  33 } while (0)
  34
  35 #define sfw_unpack_sid(sid)             \
  36 do {                                    \
  37         __swab64s(&(sid).ses_nid);      \
  38         __swab64s(&(sid).ses_stamp);    \
  39 } while (0)
  40
  41 #define sfw_unpack_fw_counters(fc)        \
  42 do {                                      \
  43         __swab32s(&(fc).brw_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)
 183                 return;
 184
 185         LASSERT (!sn->sn_timer_active);
 186
 187         sfw_data.fw_session = NULL;
 188         atomic_inc(&sfw_data.fw_nzombies);
 189         list_add(&sn->sn_list, &sfw_data.fw_zombie_sessions);
 190
 191         list_for_each_entry (tsb, &sn->sn_batches, bat_list) {
 192                 if (sfw_batch_active(tsb)) {
 193                         nactive++;
 194                         sfw_stop_batch(tsb, 1);
 195                 }
 196         }
 197
 198         if (nactive != 0)
 199                 return;   /* wait for active batches to stop */
 200
 201         list_del_init(&sn->sn_list);
 202         spin_unlock(&sfw_data.fw_lock);
 203
 204         sfw_destroy_session(sn);
 205
 206         spin_lock(&sfw_data.fw_lock);
 207         return;
 208 }
 209
 210 #ifndef __KERNEL__
 211
 212 int
 213 sfw_session_removed (void)
 214 {
 215         return (sfw_data.fw_session == NULL) ? 1 : 0;
 216 }
 217
 218 #endif
 219
 220 void
 221 sfw_session_expired (void *data)
 222 {
 223         sfw_session_t *sn = data;
 224
 225         spin_lock(&sfw_data.fw_lock);
 226
 227         LASSERT (sn->sn_timer_active);
 228         LASSERT (sn == sfw_data.fw_session);
 229
 230         CWARN ("Session expired! sid: %s-"LPU64", name: %s\n",
 231                libcfs_nid2str(sn->sn_id.ses_nid),
 232                sn->sn_id.ses_stamp, &sn->sn_name[0]);
 233
 234         sn->sn_timer_active = 0;
 235         sfw_deactivate_session();
 236
 237         spin_unlock(&sfw_data.fw_lock);
 238         return;
 239 }
 240
 241 static inline void
 242 sfw_init_session (sfw_session_t *sn, lst_sid_t sid, const char *name)
 243 {
 244         stt_timer_t *timer = &sn->sn_timer;
 245
 246         memset(sn, 0, sizeof(sfw_session_t));
 247         CFS_INIT_LIST_HEAD(&sn->sn_list);
 248         CFS_INIT_LIST_HEAD(&sn->sn_batches);
 249         atomic_set(&sn->sn_brw_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->zombie_sessions = atomic_read(&sfw_data.fw_nzombies);
 376
 377         cnt->active_tests = cnt->active_batches = 0;
 378         list_for_each_entry (bat, &sn->sn_batches, bat_list) {
 379                 int n = atomic_read(&bat->bat_nactive);
 380
 381                 if (n > 0) {
 382                         cnt->active_batches++;
 383                         cnt->active_tests += n;
 384                 }
 385         }
 386
 387         reply->str_status = 0;
 388         return 0;
 389 }
 390
 391 int
 392 sfw_make_session (srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply)
 393 {
 394         sfw_session_t *sn = sfw_data.fw_session;
 395
 396         if (request->mksn_sid.ses_nid == LNET_NID_ANY) {
 397                 reply->mksn_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id;
 398                 reply->mksn_status = EINVAL;
 399                 return 0;
 400         }
 401
 402         if (sn != NULL && !request->mksn_force) {
 403                 reply->mksn_sid    = sn->sn_id;
 404                 reply->mksn_status = EBUSY;
 405                 strncpy(&reply->mksn_name[0], &sn->sn_name[0], LST_NAME_SIZE);
 406                 return 0;
 407         }
 408
 409         LIBCFS_ALLOC(sn, sizeof(sfw_session_t));
 410         if (sn == NULL) {
 411                 CERROR ("Dropping RPC (mksn) under memory pressure.\n");
 412                 return -ENOMEM;
 413         }
 414
 415         sfw_init_session(sn, request->mksn_sid, &request->mksn_name[0]);
 416
 417         spin_lock(&sfw_data.fw_lock);
 418
 419         sfw_deactivate_session();
 420         LASSERT (sfw_data.fw_session == NULL);
 421         sfw_data.fw_session = sn;
 422
 423         spin_unlock(&sfw_data.fw_lock);
 424
 425         reply->mksn_status  = 0;
 426         reply->mksn_sid     = sn->sn_id;
 427         reply->mksn_timeout = sn->sn_timeout;
 428         return 0;
 429 }
 430
 431 int
 432 sfw_remove_session (srpc_rmsn_reqst_t *request, srpc_rmsn_reply_t *reply)
 433 {
 434         sfw_session_t *sn = sfw_data.fw_session;
 435
 436         reply->rmsn_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id;
 437
 438         if (request->rmsn_sid.ses_nid == LNET_NID_ANY) {
 439                 reply->rmsn_status = EINVAL;
 440                 return 0;
 441         }
 442
 443         if (sn == NULL || !sfw_sid_equal(request->rmsn_sid, sn->sn_id)) {
 444                 reply->rmsn_status = (sn == NULL) ? ESRCH : EBUSY;
 445                 return 0;
 446         }
 447
 448         spin_lock(&sfw_data.fw_lock);
 449         sfw_deactivate_session();
 450         spin_unlock(&sfw_data.fw_lock);
 451
 452         reply->rmsn_status = 0;
 453         reply->rmsn_sid    = LST_INVALID_SID;
 454         LASSERT (sfw_data.fw_session == NULL);
 455         return 0;
 456 }
 457
 458 int
 459 sfw_debug_session (srpc_debug_reqst_t *request, srpc_debug_reply_t *reply)
 460 {
 461         sfw_session_t *sn = sfw_data.fw_session;
 462
 463         if (sn == NULL) {
 464                 reply->dbg_status = ESRCH;
 465                 reply->dbg_sid    = LST_INVALID_SID;
 466                 return 0;
 467         }
 468
 469         reply->dbg_status  = 0;
 470         reply->dbg_sid     = sn->sn_id;
 471         reply->dbg_timeout = sn->sn_timeout;
 472         strncpy(reply->dbg_name, &sn->sn_name[0], LST_NAME_SIZE);
 473
 474         return 0;
 475 }
 476
 477 void
 478 sfw_test_rpc_fini (srpc_client_rpc_t *rpc)
 479 {
 480         sfw_test_unit_t     *tsu = rpc->crpc_priv;
 481         sfw_test_instance_t *tsi = tsu->tsu_instance;
 482
 483         /* Called with hold of tsi->tsi_lock */
 484         LASSERT (list_empty(&rpc->crpc_list));
 485         list_add(&rpc->crpc_list, &tsi->tsi_free_rpcs);
 486 }
 487
 488 int
 489 sfw_load_test (sfw_test_instance_t *tsi)
 490 {
 491         sfw_test_case_t *tsc = sfw_find_test_case(tsi->tsi_service);
 492         int              nrequired = sfw_test_buffers(tsi);
 493         int              nposted;
 494
 495         LASSERT (tsc != NULL);
 496
 497         if (tsi->tsi_is_client) {
 498                 tsi->tsi_ops = tsc->tsc_cli_ops;
 499                 return 0;
 500         }
 501
 502         nposted = srpc_service_add_buffers(tsc->tsc_srv_service, nrequired);
 503         if (nposted != nrequired) {
 504                 CWARN ("Failed to reserve enough buffers: "
 505                        "service %s, %d needed, %d reserved\n",
 506                        tsc->tsc_srv_service->sv_name, nrequired, nposted);
 507                 srpc_service_remove_buffers(tsc->tsc_srv_service, nposted);
 508                 return -ENOMEM;
 509         }
 510
 511         CDEBUG (D_NET, "Reserved %d buffers for test %s\n",
 512                 nposted, tsc->tsc_srv_service->sv_name);
 513         return 0;
 514 }
 515
 516 void
 517 sfw_unload_test (sfw_test_instance_t *tsi)
 518 {
 519         sfw_test_case_t *tsc = sfw_find_test_case(tsi->tsi_service);
 520
 521         LASSERT (tsc != NULL);
 522
 523         if (!tsi->tsi_is_client)
 524                 srpc_service_remove_buffers(tsc->tsc_srv_service,
 525                                             sfw_test_buffers(tsi));
 526         return;
 527 }
 528
 529 void
 530 sfw_destroy_test_instance (sfw_test_instance_t *tsi)
 531 {
 532         srpc_client_rpc_t *rpc;
 533         sfw_test_unit_t   *tsu;
 534
 535         if (!tsi->tsi_is_client)
 536                 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_stop_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         if (rpc->crpc_status != 0 && tsu->tsu_error == 0 &&
 789             (rpc->crpc_status != -EINTR || !tsi->tsi_stopping))
 790                 tsu->tsu_error = rpc->crpc_status;
 791
 792         tsi->tsi_ops->tso_done_rpc(tsu, rpc);
 793
 794         spin_lock(&tsi->tsi_lock);
 795
 796         LASSERT (sfw_test_active(tsi));
 797         LASSERT (!list_empty(&rpc->crpc_list));
 798
 799         list_del_init(&rpc->crpc_list);
 800
 801         /* batch is stopping or loop is done or get error */
 802         if (tsi->tsi_stopping ||
 803             tsu->tsu_loop == 0 ||
 804             (tsu->tsu_error != 0 && tsi->tsi_stop_onerr))
 805                 done = 1;
 806
 807         /* dec ref for poster */
 808         srpc_client_rpc_decref(rpc);
 809
 810         spin_unlock(&tsi->tsi_lock);
 811
 812         if (!done) {
 813                 swi_schedule_workitem(&tsu->tsu_worker);
 814                 return;
 815         }
 816
 817         sfw_test_unit_done(tsu);
 818         return;
 819 }
 820
 821 int
 822 sfw_create_test_rpc (sfw_test_unit_t *tsu, lnet_process_id_t peer,
 823                      int nblk, int blklen, srpc_client_rpc_t **rpcpp)
 824 {
 825         srpc_client_rpc_t   *rpc = NULL;
 826         sfw_test_instance_t *tsi = tsu->tsu_instance;
 827
 828         spin_lock(&tsi->tsi_lock);
 829
 830         LASSERT (sfw_test_active(tsi));
 831
 832         if (!list_empty(&tsi->tsi_free_rpcs)) {
 833                 /* pick request from buffer */
 834                 rpc = list_entry(tsi->tsi_free_rpcs.next,
 835                                  srpc_client_rpc_t, crpc_list);
 836                 LASSERT (nblk == rpc->crpc_bulk.bk_niov);
 837                 list_del_init(&rpc->crpc_list);
 838
 839                 srpc_init_client_rpc(rpc, peer, tsi->tsi_service, nblk,
 840                                      blklen, sfw_test_rpc_done,
 841                                      sfw_test_rpc_fini, tsu);
 842         }
 843
 844         spin_unlock(&tsi->tsi_lock);
 845
 846         if (rpc == NULL)
 847                 rpc = srpc_create_client_rpc(peer, tsi->tsi_service, nblk,
 848                                              blklen, sfw_test_rpc_done,
 849                                              sfw_test_rpc_fini, tsu);
 850         if (rpc == NULL) {
 851                 CERROR ("Can't create rpc for test %d\n", tsi->tsi_service);
 852                 return -ENOMEM;
 853         }
 854
 855         *rpcpp = rpc;
 856         return 0;
 857 }
 858
 859 int
 860 sfw_run_test (swi_workitem_t *wi)
 861 {
 862         sfw_test_unit_t     *tsu = wi->wi_data;
 863         sfw_test_instance_t *tsi = tsu->tsu_instance;
 864         srpc_client_rpc_t   *rpc = NULL;
 865
 866         LASSERT (wi == &tsu->tsu_worker);
 867
 868         tsu->tsu_error = tsi->tsi_ops->tso_prep_rpc(tsu, tsu->tsu_dest, &rpc);
 869         if (tsu->tsu_error != 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
 935                         tsu->tsu_error = 0;
 936                         tsu->tsu_loop  = tsi->tsi_loop;
 937
 938                         wi = &tsu->tsu_worker;
 939                         swi_init_workitem(wi, tsu, sfw_run_test);
 940                         swi_schedule_workitem(wi);
 941                 }
 942         }
 943
 944         return 0;
 945 }
 946
 947 int
 948 sfw_stop_batch (sfw_batch_t *tsb, int force)
 949 {
 950         sfw_test_instance_t *tsi;
 951         srpc_client_rpc_t   *rpc;
 952
 953         if (!sfw_batch_active(tsb))
 954                 return -EPERM;
 955
 956         list_for_each_entry (tsi, &tsb->bat_tests, tsi_list) {
 957                 spin_lock(&tsi->tsi_lock);
 958
 959                 if (!tsi->tsi_is_client ||
 960                     !sfw_test_active(tsi) || tsi->tsi_stopping) {
 961                         spin_unlock(&tsi->tsi_lock);
 962                         continue;
 963                 }
 964
 965                 tsi->tsi_stopping = 1;
 966
 967                 if (!force) {
 968                         spin_unlock(&tsi->tsi_lock);
 969                         continue;
 970                 }
 971
 972                 /* abort launched rpcs in the test */
 973                 list_for_each_entry (rpc, &tsi->tsi_active_rpcs, crpc_list) {
 974                         spin_lock(&rpc->crpc_lock);
 975
 976                         srpc_abort_rpc(rpc, -EINTR);
 977
 978                         spin_unlock(&rpc->crpc_lock);
 979                 }
 980
 981                 spin_unlock(&tsi->tsi_lock);
 982         }
 983
 984         return 0;
 985 }
 986
 987 int
 988 sfw_query_batch (sfw_batch_t *tsb, int testidx, srpc_batch_reply_t *reply)
 989 {
 990         sfw_test_instance_t *tsi;
 991
 992         if (testidx < 0)
 993                 return -EINVAL;
 994
 995         if (testidx == 0) {
 996                 reply->bar_active = atomic_read(&tsb->bat_nactive);
 997                 return 0;
 998         }
 999
1000         list_for_each_entry (tsi, &tsb->bat_tests, tsi_list) {
1001                 if (testidx-- > 1)
1002                         continue;
1003
1004                 reply->bar_active = atomic_read(&tsi->tsi_nactive);
1005                 return 0;
1006         }
1007
1008         return -ENOENT;
1009 }
1010
1011 void
1012 sfw_free_pages (srpc_server_rpc_t *rpc)
1013 {
1014         srpc_free_bulk(rpc->srpc_bulk);
1015         rpc->srpc_bulk = NULL;
1016 }
1017
1018 int
1019 sfw_alloc_pages (srpc_server_rpc_t *rpc, int npages, int sink)
1020 {
1021         LASSERT (rpc->srpc_bulk == NULL);
1022         LASSERT (npages > 0 && npages <= LNET_MAX_IOV);
1023
1024         rpc->srpc_bulk = srpc_alloc_bulk(npages, sink);
1025         if (rpc->srpc_bulk == NULL) return -ENOMEM;
1026
1027         return 0;
1028 }
1029
1030 int
1031 sfw_add_test (srpc_server_rpc_t *rpc)
1032 {
1033         sfw_session_t     *sn = sfw_data.fw_session;
1034         srpc_test_reply_t *reply = &rpc->srpc_replymsg.msg_body.tes_reply;
1035         srpc_test_reqst_t *request;
1036         int                rc;
1037         sfw_batch_t       *bat;
1038
1039         request = &rpc->srpc_reqstbuf->buf_msg.msg_body.tes_reqst;
1040         reply->tsr_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id;
1041
1042         if (request->tsr_loop == 0 ||
1043             request->tsr_concur == 0 ||
1044             request->tsr_sid.ses_nid == LNET_NID_ANY ||
1045             request->tsr_ndest > SFW_MAX_NDESTS ||
1046             (request->tsr_is_client && request->tsr_ndest == 0) ||
1047             request->tsr_concur > SFW_MAX_CONCUR ||
1048             request->tsr_service > SRPC_SERVICE_MAX_ID ||
1049             request->tsr_service <= SRPC_FRAMEWORK_SERVICE_MAX_ID) {
1050                 reply->tsr_status = EINVAL;
1051                 return 0;
1052         }
1053
1054         if (sn == NULL || !sfw_sid_equal(request->tsr_sid, sn->sn_id) ||
1055             sfw_find_test_case(request->tsr_service) == NULL) {
1056                 reply->tsr_status = ENOENT;
1057                 return 0;
1058         }
1059
1060         bat = sfw_bid2batch(request->tsr_bid);
1061         if (bat == NULL) {
1062                 CERROR ("Dropping RPC (%s) from %s under memory pressure.\n",
1063                         rpc->srpc_service->sv_name,
1064                         libcfs_id2str(rpc->srpc_peer));
1065                 return -ENOMEM;
1066         }
1067
1068         if (sfw_batch_active(bat)) {
1069                 reply->tsr_status = EBUSY;
1070                 return 0;
1071         }
1072
1073         if (request->tsr_is_client && rpc->srpc_bulk == NULL) {
1074                 /* rpc will be resumed later in sfw_bulk_ready */
1075                 return sfw_alloc_pages(rpc,
1076                                        sfw_id_pages(request->tsr_ndest), 1);
1077         }
1078
1079         rc = sfw_add_test_instance(bat, rpc);
1080         CDEBUG (rc == 0 ? D_NET : D_WARNING,
1081                 "%s test: sv %d %s, loop %d, concur %d, ndest %d\n",
1082                 rc == 0 ? "Added" : "Failed to add", request->tsr_service,
1083                 request->tsr_is_client ? "client" : "server",
1084                 request->tsr_loop, request->tsr_concur, request->tsr_ndest);
1085
1086         reply->tsr_status = (rc < 0) ? -rc : rc;
1087         return 0;
1088 }
1089
1090 int
1091 sfw_control_batch (srpc_batch_reqst_t *request, srpc_batch_reply_t *reply)
1092 {
1093         sfw_session_t *sn = sfw_data.fw_session;
1094         int            rc = 0;
1095         sfw_batch_t   *bat;
1096
1097         reply->bar_sid = (sn == NULL) ? LST_INVALID_SID : sn->sn_id;
1098
1099         if (sn == NULL || !sfw_sid_equal(request->bar_sid, sn->sn_id)) {
1100                 reply->bar_status = ESRCH;
1101                 return 0;
1102         }
1103
1104         bat = sfw_find_batch(request->bar_bid);
1105         if (bat == NULL) {
1106                 reply->bar_status = ENOENT;
1107                 return 0;
1108         }
1109
1110         switch (request->bar_opc) {
1111         case SRPC_BATCH_OPC_RUN:
1112                 rc = sfw_run_batch(bat);
1113                 break;
1114
1115         case SRPC_BATCH_OPC_STOP:
1116                 rc = sfw_stop_batch(bat, request->bar_arg);
1117                 break;
1118
1119         case SRPC_BATCH_OPC_QUERY:
1120                 rc = sfw_query_batch(bat, request->bar_testidx, reply);
1121                 break;
1122
1123         default:
1124                 return -EINVAL; /* drop it */
1125         }
1126
1127         reply->bar_status = (rc < 0) ? -rc : rc;
1128         return 0;
1129 }
1130
1131 int
1132 sfw_handle_server_rpc (srpc_server_rpc_t *rpc)
1133 {
1134         srpc_service_t *sv = rpc->srpc_service;
1135         srpc_msg_t     *reply = &rpc->srpc_replymsg;
1136         srpc_msg_t     *request = &rpc->srpc_reqstbuf->buf_msg;
1137         int             rc = 0;
1138
1139         LASSERT (sfw_data.fw_active_srpc == NULL);
1140         LASSERT (sv->sv_id <= SRPC_FRAMEWORK_SERVICE_MAX_ID);
1141
1142         spin_lock(&sfw_data.fw_lock);
1143
1144         if (sfw_data.fw_shuttingdown) {
1145                 spin_unlock(&sfw_data.fw_lock);
1146                 return -ESHUTDOWN;
1147         }
1148
1149         /* Remove timer to avoid racing with it or expiring active session */
1150         if (sfw_del_session_timer() != 0) {
1151                 CERROR ("Dropping RPC (%s) from %s: racing with expiry timer.",
1152                         sv->sv_name, libcfs_id2str(rpc->srpc_peer));
1153                 spin_unlock(&sfw_data.fw_lock);
1154                 return -EAGAIN;
1155         }
1156
1157         sfw_data.fw_active_srpc = rpc;
1158         spin_unlock(&sfw_data.fw_lock);
1159
1160         sfw_unpack_message(request);
1161         LASSERT (request->msg_type == srpc_service2request(sv->sv_id));
1162
1163         switch(sv->sv_id) {
1164         default:
1165                 LBUG ();
1166         case SRPC_SERVICE_TEST:
1167                 rc = sfw_add_test(rpc);
1168                 break;
1169
1170         case SRPC_SERVICE_BATCH:
1171                 rc = sfw_control_batch(&request->msg_body.bat_reqst,
1172                                        &reply->msg_body.bat_reply);
1173                 break;
1174
1175         case SRPC_SERVICE_QUERY_STAT:
1176                 rc = sfw_get_stats(&request->msg_body.stat_reqst,
1177                                    &reply->msg_body.stat_reply);
1178                 break;
1179
1180         case SRPC_SERVICE_DEBUG:
1181                 rc = sfw_debug_session(&request->msg_body.dbg_reqst,
1182                                        &reply->msg_body.dbg_reply);
1183                 break;
1184
1185         case SRPC_SERVICE_MAKE_SESSION:
1186                 rc = sfw_make_session(&request->msg_body.mksn_reqst,
1187                                       &reply->msg_body.mksn_reply);
1188                 break;
1189
1190         case SRPC_SERVICE_REMOVE_SESSION:
1191                 rc = sfw_remove_session(&request->msg_body.rmsn_reqst,
1192                                         &reply->msg_body.rmsn_reply);
1193                 break;
1194         }
1195
1196         rpc->srpc_done = sfw_server_rpc_done;
1197         spin_lock(&sfw_data.fw_lock);
1198
1199 #ifdef __KERNEL__
1200         if (!sfw_data.fw_shuttingdown)
1201                 sfw_add_session_timer();
1202 #else
1203         LASSERT (!sfw_data.fw_shuttingdown);
1204         sfw_add_session_timer();
1205 #endif
1206
1207         sfw_data.fw_active_srpc = NULL;
1208         spin_unlock(&sfw_data.fw_lock);
1209         return rc;
1210 }
1211
1212 int
1213 sfw_bulk_ready (srpc_server_rpc_t *rpc, int status)
1214 {
1215         srpc_service_t *sv = rpc->srpc_service;
1216         int             rc;
1217
1218         LASSERT (rpc->srpc_bulk != NULL);
1219         LASSERT (sv->sv_id == SRPC_SERVICE_TEST);
1220         LASSERT (sfw_data.fw_active_srpc == NULL);
1221         LASSERT (rpc->srpc_reqstbuf->buf_msg.msg_body.tes_reqst.tsr_is_client);
1222
1223         spin_lock(&sfw_data.fw_lock);
1224
1225         if (status != 0) {
1226                 CERROR ("Bulk transfer failed for RPC: "
1227                         "service %s, peer %s, status %d\n",
1228                         sv->sv_name, libcfs_id2str(rpc->srpc_peer), status);
1229                 spin_unlock(&sfw_data.fw_lock);
1230                 return -EIO;
1231         }
1232
1233         if (sfw_data.fw_shuttingdown) {
1234                 spin_unlock(&sfw_data.fw_lock);
1235                 return -ESHUTDOWN;
1236         }
1237
1238         if (sfw_del_session_timer() != 0) {
1239                 CERROR ("Dropping RPC (%s) from %s: racing with expiry timer",
1240                         sv->sv_name, libcfs_id2str(rpc->srpc_peer));
1241                 spin_unlock(&sfw_data.fw_lock);
1242                 return -EAGAIN;
1243         }
1244
1245         sfw_data.fw_active_srpc = rpc;
1246         spin_unlock(&sfw_data.fw_lock);
1247
1248         rc = sfw_add_test(rpc);
1249
1250         spin_lock(&sfw_data.fw_lock);
1251
1252 #ifdef __KERNEL__
1253         if (!sfw_data.fw_shuttingdown)
1254                 sfw_add_session_timer();
1255 #else
1256         LASSERT (!sfw_data.fw_shuttingdown);
1257         sfw_add_session_timer();
1258 #endif
1259
1260         sfw_data.fw_active_srpc = NULL;
1261         spin_unlock(&sfw_data.fw_lock);
1262         return rc;
1263 }
1264
1265 srpc_client_rpc_t *
1266 sfw_create_rpc (lnet_process_id_t peer, int service,
1267                 int nbulkiov, int bulklen,
1268                 void (*done) (srpc_client_rpc_t *), void *priv)
1269 {
1270         srpc_client_rpc_t *rpc;
1271
1272         spin_lock(&sfw_data.fw_lock);
1273
1274         LASSERT (!sfw_data.fw_shuttingdown);
1275         LASSERT (service <= SRPC_FRAMEWORK_SERVICE_MAX_ID);
1276
1277         if (nbulkiov == 0 && !list_empty(&sfw_data.fw_zombie_rpcs)) {
1278                 rpc = list_entry(sfw_data.fw_zombie_rpcs.next,
1279                                  srpc_client_rpc_t, crpc_list);
1280                 list_del(&rpc->crpc_list);
1281                 spin_unlock(&sfw_data.fw_lock);
1282
1283                 srpc_init_client_rpc(rpc, peer, service, 0, 0,
1284                                      done, sfw_client_rpc_fini, priv);
1285                 return rpc;
1286         }
1287
1288         spin_unlock(&sfw_data.fw_lock);
1289
1290         rpc = srpc_create_client_rpc(peer, service, nbulkiov, bulklen, done,
1291                                      nbulkiov != 0 ? NULL : sfw_client_rpc_fini,
1292                                      priv);
1293         return rpc;
1294 }
1295
1296 void
1297 sfw_unpack_message (srpc_msg_t *msg)
1298 {
1299         if (msg->msg_magic == SRPC_MSG_MAGIC)
1300                 return; /* no flipping needed */
1301
1302         LASSERT (msg->msg_magic == __swab32(SRPC_MSG_MAGIC));
1303
1304         __swab32s(&msg->msg_type);
1305
1306         if (msg->msg_type == SRPC_MSG_STAT_REQST) {
1307                 srpc_stat_reqst_t *req = &msg->msg_body.stat_reqst;
1308
1309                 __swab32s(&req->str_type);
1310                 __swab64s(&req->str_rpyid);
1311                 sfw_unpack_sid(req->str_sid);
1312                 return;
1313         }
1314
1315         if (msg->msg_type == SRPC_MSG_STAT_REPLY) {
1316                 srpc_stat_reply_t *rep = &msg->msg_body.stat_reply;
1317
1318                 __swab32s(&rep->str_status);
1319                 sfw_unpack_sid(rep->str_sid);
1320                 sfw_unpack_fw_counters(rep->str_fw);
1321                 sfw_unpack_rpc_counters(rep->str_rpc);
1322                 sfw_unpack_lnet_counters(rep->str_lnet);
1323                 return;
1324         }
1325
1326         if (msg->msg_type == SRPC_MSG_MKSN_REQST) {
1327                 srpc_mksn_reqst_t *req = &msg->msg_body.mksn_reqst;
1328
1329                 __swab64s(&req->mksn_rpyid);
1330                 __swab32s(&req->mksn_force);
1331                 sfw_unpack_sid(req->mksn_sid);
1332                 return;
1333         }
1334
1335         if (msg->msg_type == SRPC_MSG_MKSN_REPLY) {
1336                 srpc_mksn_reply_t *rep = &msg->msg_body.mksn_reply;
1337
1338                 __swab32s(&rep->mksn_status);
1339                 __swab32s(&rep->mksn_timeout);
1340                 sfw_unpack_sid(rep->mksn_sid);
1341                 return;
1342         }
1343
1344         if (msg->msg_type == SRPC_MSG_RMSN_REQST) {
1345                 srpc_rmsn_reqst_t *req = &msg->msg_body.rmsn_reqst;
1346
1347                 __swab64s(&req->rmsn_rpyid);
1348                 sfw_unpack_sid(req->rmsn_sid);
1349                 return;
1350         }
1351
1352         if (msg->msg_type == SRPC_MSG_RMSN_REPLY) {
1353                 srpc_rmsn_reply_t *rep = &msg->msg_body.rmsn_reply;
1354
1355                 __swab32s(&rep->rmsn_status);
1356                 sfw_unpack_sid(rep->rmsn_sid);
1357                 return;
1358         }
1359
1360         if (msg->msg_type == SRPC_MSG_DEBUG_REQST) {
1361                 srpc_debug_reqst_t *req = &msg->msg_body.dbg_reqst;
1362
1363                 __swab64s(&req->dbg_rpyid);
1364                 __swab32s(&req->dbg_flags);
1365                 sfw_unpack_sid(req->dbg_sid);
1366                 return;
1367         }
1368
1369         if (msg->msg_type == SRPC_MSG_DEBUG_REPLY) {
1370                 srpc_debug_reply_t *rep = &msg->msg_body.dbg_reply;
1371
1372                 __swab32s(&rep->dbg_nbatch);
1373                 __swab32s(&rep->dbg_timeout);
1374                 sfw_unpack_sid(rep->dbg_sid);
1375                 return;
1376         }
1377
1378         if (msg->msg_type == SRPC_MSG_BATCH_REQST) {
1379                 srpc_batch_reqst_t *req = &msg->msg_body.bat_reqst;
1380
1381                 __swab32s(&req->bar_opc);
1382                 __swab64s(&req->bar_rpyid);
1383                 __swab32s(&req->bar_testidx);
1384                 __swab32s(&req->bar_arg);
1385                 sfw_unpack_sid(req->bar_sid);
1386                 __swab64s(&req->bar_bid.bat_id);
1387                 return;
1388         }
1389
1390         if (msg->msg_type == SRPC_MSG_BATCH_REPLY) {
1391                 srpc_batch_reply_t *rep = &msg->msg_body.bat_reply;
1392
1393                 __swab32s(&rep->bar_status);
1394                 sfw_unpack_sid(rep->bar_sid);
1395                 return;
1396         }
1397
1398         if (msg->msg_type == SRPC_MSG_TEST_REQST) {
1399                 srpc_test_reqst_t *req = &msg->msg_body.tes_reqst;
1400
1401                 __swab64s(&req->tsr_rpyid);
1402                 __swab64s(&req->tsr_bulkid);
1403                 __swab32s(&req->tsr_loop);
1404                 __swab32s(&req->tsr_ndest);
1405                 __swab32s(&req->tsr_concur);
1406                 __swab32s(&req->tsr_service);
1407                 sfw_unpack_sid(req->tsr_sid);
1408                 __swab64s(&req->tsr_bid.bat_id);
1409                 return;
1410         }
1411
1412         if (msg->msg_type == SRPC_MSG_TEST_REPLY) {
1413                 srpc_test_reply_t *rep = &msg->msg_body.tes_reply;
1414
1415                 __swab32s(&rep->tsr_status);
1416                 sfw_unpack_sid(rep->tsr_sid);
1417                 return;
1418         }
1419
1420         if (msg->msg_type == SRPC_MSG_JOIN_REQST) {
1421                 srpc_join_reqst_t *req = &msg->msg_body.join_reqst;
1422
1423                 __swab64s(&req->join_rpyid);
1424                 sfw_unpack_sid(req->join_sid);
1425                 return;
1426         }
1427
1428         if (msg->msg_type == SRPC_MSG_JOIN_REPLY) {
1429                 srpc_join_reply_t *rep = &msg->msg_body.join_reply;
1430
1431                 __swab32s(&rep->join_status);
1432                 __swab32s(&rep->join_timeout);
1433                 sfw_unpack_sid(rep->join_sid);
1434                 return;
1435         }
1436
1437         LBUG ();
1438         return;
1439 }
1440
1441 void
1442 sfw_abort_rpc (srpc_client_rpc_t *rpc)
1443 {
1444         LASSERT (atomic_read(&rpc->crpc_refcount) > 0);
1445         LASSERT (rpc->crpc_service <= SRPC_FRAMEWORK_SERVICE_MAX_ID);
1446
1447         spin_lock(&rpc->crpc_lock);
1448         srpc_abort_rpc(rpc, -EINTR);
1449         spin_unlock(&rpc->crpc_lock);
1450         return;
1451 }
1452
1453 void
1454 sfw_post_rpc (srpc_client_rpc_t *rpc)
1455 {
1456         spin_lock(&rpc->crpc_lock);
1457
1458         LASSERT (!rpc->crpc_closed);
1459         LASSERT (!rpc->crpc_aborted);
1460         LASSERT (list_empty(&rpc->crpc_list));
1461         LASSERT (!sfw_data.fw_shuttingdown);
1462
1463         rpc->crpc_timeout = SFW_CLIENT_RPC_TIMEOUT;
1464         srpc_post_rpc(rpc);
1465
1466         spin_unlock(&rpc->crpc_lock);
1467         return;
1468 }
1469
1470 static srpc_service_t sfw_services[] =
1471 {
1472         {
1473                 .sv_name = "debug",
1474                 .sv_id   = SRPC_SERVICE_DEBUG,
1475         },
1476         {
1477                 .sv_name = "query stats",
1478                 .sv_id   = SRPC_SERVICE_QUERY_STAT,
1479         },
1480         {
1481                 .sv_name = "make sessin",
1482                 .sv_id   = SRPC_SERVICE_MAKE_SESSION,
1483         },
1484         {
1485                 .sv_name = "remove session",
1486                 .sv_id   = SRPC_SERVICE_REMOVE_SESSION,
1487         },
1488         {
1489                 .sv_name = "batch service",
1490                 .sv_id   = SRPC_SERVICE_BATCH,
1491         },
1492         {
1493                 .sv_name = "test service",
1494                 .sv_id   = SRPC_SERVICE_TEST,
1495         },
1496         {       .sv_name = NULL, }
1497 };
1498
1499 extern sfw_test_client_ops_t ping_test_client;
1500 extern srpc_service_t        ping_test_service;
1501
1502 extern sfw_test_client_ops_t brw_test_client;
1503 extern srpc_service_t        brw_test_service;
1504
1505 int
1506 sfw_startup (void)
1507 {
1508         int              i;
1509         int              rc;
1510         int              error;
1511         srpc_service_t  *sv;
1512         sfw_test_case_t *tsc;
1513
1514         if (session_timeout < 0) {
1515                 CERROR ("Session timeout must be non-negative: %d\n",
1516                         session_timeout);
1517                 return -EINVAL;
1518         }
1519
1520         if (session_timeout == 0)
1521                 CWARN ("Zero session_timeout specified "
1522                        "- test sessions never timeout.\n");
1523
1524         memset(&sfw_data, 0, sizeof(struct smoketest_framework));
1525
1526         sfw_data.fw_session     = NULL;
1527         sfw_data.fw_active_srpc = NULL;
1528         spin_lock_init(&sfw_data.fw_lock);
1529         atomic_set(&sfw_data.fw_nzombies, 0);
1530         CFS_INIT_LIST_HEAD(&sfw_data.fw_tests);
1531         CFS_INIT_LIST_HEAD(&sfw_data.fw_zombie_rpcs);
1532         CFS_INIT_LIST_HEAD(&sfw_data.fw_zombie_sessions);
1533
1534         rc = sfw_register_test(&brw_test_service, &brw_test_client);
1535         LASSERT (rc == 0);
1536         rc = sfw_register_test(&ping_test_service, &ping_test_client);
1537         LASSERT (rc == 0);
1538
1539         error = 0;
1540         list_for_each_entry (tsc, &sfw_data.fw_tests, tsc_list) {
1541                 sv = tsc->tsc_srv_service;
1542                 sv->sv_concur = SFW_TEST_CONCURRENCY;
1543
1544                 rc = srpc_add_service(sv);
1545                 LASSERT (rc != -EBUSY);
1546                 if (rc != 0) {
1547                         CWARN ("Failed to add %s service: %d\n",
1548                                sv->sv_name, rc);
1549                         error = rc;
1550                 }
1551         }
1552
1553         for (i = 0; ; i++) {
1554                 sv = &sfw_services[i];
1555                 if (sv->sv_name == NULL) break;
1556
1557                 sv->sv_bulk_ready = NULL;
1558                 sv->sv_handler    = sfw_handle_server_rpc;
1559                 sv->sv_concur     = SFW_SERVICE_CONCURRENCY;
1560                 if (sv->sv_id == SRPC_SERVICE_TEST)
1561                         sv->sv_bulk_ready = sfw_bulk_ready;
1562
1563                 rc = srpc_add_service(sv);
1564                 LASSERT (rc != -EBUSY);
1565                 if (rc != 0) {
1566                         CWARN ("Failed to add %s service: %d\n",
1567                                sv->sv_name, rc);
1568                         error = rc;
1569                 }
1570
1571                 /* about to sfw_shutdown, no need to add buffer */
1572                 if (error) continue;
1573
1574                 rc = srpc_service_add_buffers(sv, SFW_POST_BUFFERS);
1575                 if (rc != SFW_POST_BUFFERS) {
1576                         CWARN ("Failed to reserve enough buffers: "
1577                                "service %s, %d needed, %d reserved\n",
1578                                sv->sv_name, SFW_POST_BUFFERS, rc);
1579                         error = -ENOMEM;
1580                 }
1581         }
1582
1583         if (error != 0)
1584                 sfw_shutdown();
1585         return error;
1586 }
1587
1588 void
1589 sfw_shutdown (void)
1590 {
1591         srpc_service_t  *sv;
1592         sfw_test_case_t *tsc;
1593         int              i;
1594
1595         spin_lock(&sfw_data.fw_lock);
1596
1597         sfw_data.fw_shuttingdown = 1;
1598 #ifdef __KERNEL__
1599         lst_wait_until(sfw_data.fw_active_srpc == NULL, sfw_data.fw_lock,
1600                        "waiting for active RPC to finish.\n");
1601 #else
1602         LASSERT (sfw_data.fw_active_srpc == NULL);
1603 #endif
1604
1605         if (sfw_del_session_timer() != 0)
1606                 lst_wait_until(sfw_data.fw_session == NULL, sfw_data.fw_lock,
1607                                "waiting for session timer to explode.\n");
1608
1609         sfw_deactivate_session();
1610         lst_wait_until(atomic_read(&sfw_data.fw_nzombies) == 0,
1611                        sfw_data.fw_lock,
1612                        "waiting for %d zombie sessions to die.\n",
1613                        atomic_read(&sfw_data.fw_nzombies));
1614
1615         spin_unlock(&sfw_data.fw_lock);
1616
1617         for (i = 0; ; i++) {
1618                 sv = &sfw_services[i];
1619                 if (sv->sv_name == NULL)
1620                         break;
1621
1622                 srpc_shutdown_service(sv);
1623                 srpc_remove_service(sv);
1624         }
1625
1626         list_for_each_entry (tsc, &sfw_data.fw_tests, tsc_list) {
1627                 sv = tsc->tsc_srv_service;
1628                 srpc_shutdown_service(sv);
1629                 srpc_remove_service(sv);
1630         }
1631
1632         while (!list_empty(&sfw_data.fw_zombie_rpcs)) {
1633                 srpc_client_rpc_t *rpc;
1634
1635                 rpc = list_entry(sfw_data.fw_zombie_rpcs.next,
1636                                  srpc_client_rpc_t, crpc_list);
1637                 list_del(&rpc->crpc_list);
1638
1639                 LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc));
1640         }
1641
1642         for (i = 0; ; i++) {
1643                 sv = &sfw_services[i];
1644                 if (sv->sv_name == NULL)
1645                         break;
1646
1647                 srpc_wait_service_shutdown(sv);
1648         }
1649
1650         while (!list_empty(&sfw_data.fw_tests)) {
1651                 tsc = list_entry(sfw_data.fw_tests.next,
1652                                  sfw_test_case_t, tsc_list);
1653
1654                 srpc_wait_service_shutdown(tsc->tsc_srv_service);
1655
1656                 list_del(&tsc->tsc_list);
1657                 LIBCFS_FREE(tsc, sizeof(*tsc));
1658         }
1659
1660         return;
1661 }