drivers/staging/lustre/lnet/selftest/selftest.h

   1 /*
   2  * GPL HEADER START
   3  *
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 only,
   8  * as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License version 2 for more details (a copy is included
  14  * in the LICENSE file that accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * version 2 along with this program; If not, see
  18  * http://www.gnu.org/licenses/gpl-2.0.html
  19  *
  20  * GPL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Use is subject to license terms.
  25  *
  26  * Copyright (c) 2012, Intel Corporation.
  27  */
  28 /*
  29  * This file is part of Lustre, http://www.lustre.org/
  30  * Lustre is a trademark of Sun Microsystems, Inc.
  31  *
  32  * lnet/selftest/selftest.h
  33  *
  34  * Author: Isaac Huang <isaac@clusterfs.com>
  35  */
  36 #ifndef __SELFTEST_SELFTEST_H__
  37 #define __SELFTEST_SELFTEST_H__
  38
  39 #define LNET_ONLY
  40
  41 #include "../../include/linux/libcfs/libcfs.h"
  42 #include "../../include/linux/lnet/lnet.h"
  43 #include "../../include/linux/lnet/lib-lnet.h"
  44 #include "../../include/linux/lnet/lib-types.h"
  45 #include "../../include/linux/lnet/lnetst.h"
  46
  47 #include "rpc.h"
  48 #include "timer.h"
  49
  50 #ifndef MADE_WITHOUT_COMPROMISE
  51 #define MADE_WITHOUT_COMPROMISE
  52 #endif
  53
  54 #define SWI_STATE_NEWBORN               0
  55 #define SWI_STATE_REPLY_SUBMITTED       1
  56 #define SWI_STATE_REPLY_SENT            2
  57 #define SWI_STATE_REQUEST_SUBMITTED     3
  58 #define SWI_STATE_REQUEST_SENT          4
  59 #define SWI_STATE_REPLY_RECEIVED        5
  60 #define SWI_STATE_BULK_STARTED          6
  61 #define SWI_STATE_DONE                  10
  62
  63 /* forward refs */
  64 struct srpc_service;
  65 struct srpc_service_cd;
  66 struct sfw_test_unit;
  67 struct sfw_test_instance;
  68
  69 /* services below SRPC_FRAMEWORK_SERVICE_MAX_ID are framework
  70  * services, e.g. create/modify session.
  71  */
  72 #define SRPC_SERVICE_DEBUG              0
  73 #define SRPC_SERVICE_MAKE_SESSION       1
  74 #define SRPC_SERVICE_REMOVE_SESSION     2
  75 #define SRPC_SERVICE_BATCH              3
  76 #define SRPC_SERVICE_TEST               4
  77 #define SRPC_SERVICE_QUERY_STAT         5
  78 #define SRPC_SERVICE_JOIN               6
  79 #define SRPC_FRAMEWORK_SERVICE_MAX_ID   10
  80 /* other services start from SRPC_FRAMEWORK_SERVICE_MAX_ID+1 */
  81 #define SRPC_SERVICE_BRW                11
  82 #define SRPC_SERVICE_PING               12
  83 #define SRPC_SERVICE_MAX_ID             12
  84
  85 #define SRPC_REQUEST_PORTAL             50
  86 /* a lazy portal for framework RPC requests */
  87 #define SRPC_FRAMEWORK_REQUEST_PORTAL   51
  88 /* all reply/bulk RDMAs go to this portal */
  89 #define SRPC_RDMA_PORTAL                52
  90
  91 static inline enum srpc_msg_type
  92 srpc_service2request(int service)
  93 {
  94         switch (service) {
  95         default:
  96                 LBUG();
  97         case SRPC_SERVICE_DEBUG:
  98                 return SRPC_MSG_DEBUG_REQST;
  99
 100         case SRPC_SERVICE_MAKE_SESSION:
 101                 return SRPC_MSG_MKSN_REQST;
 102
 103         case SRPC_SERVICE_REMOVE_SESSION:
 104                 return SRPC_MSG_RMSN_REQST;
 105
 106         case SRPC_SERVICE_BATCH:
 107                 return SRPC_MSG_BATCH_REQST;
 108
 109         case SRPC_SERVICE_TEST:
 110                 return SRPC_MSG_TEST_REQST;
 111
 112         case SRPC_SERVICE_QUERY_STAT:
 113                 return SRPC_MSG_STAT_REQST;
 114
 115         case SRPC_SERVICE_BRW:
 116                 return SRPC_MSG_BRW_REQST;
 117
 118         case SRPC_SERVICE_PING:
 119                 return SRPC_MSG_PING_REQST;
 120
 121         case SRPC_SERVICE_JOIN:
 122                 return SRPC_MSG_JOIN_REQST;
 123         }
 124 }
 125
 126 static inline enum srpc_msg_type
 127 srpc_service2reply(int service)
 128 {
 129         return srpc_service2request(service) + 1;
 130 }
 131
 132 enum srpc_event_type {
 133         SRPC_BULK_REQ_RCVD   = 1, /* passive bulk request(PUT sink/GET source)
 134                                    * received
 135                                    */
 136         SRPC_BULK_PUT_SENT   = 2, /* active bulk PUT sent (source) */
 137         SRPC_BULK_GET_RPLD   = 3, /* active bulk GET replied (sink) */
 138         SRPC_REPLY_RCVD      = 4, /* incoming reply received */
 139         SRPC_REPLY_SENT      = 5, /* outgoing reply sent */
 140         SRPC_REQUEST_RCVD    = 6, /* incoming request received */
 141         SRPC_REQUEST_SENT    = 7, /* outgoing request sent */
 142 };
 143
 144 /* RPC event */
 145 struct srpc_event {
 146         enum srpc_event_type    ev_type;        /* what's up */
 147         enum lnet_event_kind    ev_lnet;        /* LNet event type */
 148         int               ev_fired;  /* LNet event fired? */
 149         int               ev_status; /* LNet event status */
 150         void              *ev_data;  /* owning server/client RPC */
 151 };
 152
 153 /* bulk descriptor */
 154 struct srpc_bulk {
 155         int              bk_len;     /* len of bulk data */
 156         struct lnet_handle_md   bk_mdh;
 157         int              bk_sink;    /* sink/source */
 158         int              bk_niov;    /* # iov in bk_iovs */
 159         struct bio_vec          bk_iovs[0];
 160 };
 161
 162 /* message buffer descriptor */
 163 struct srpc_buffer {
 164         struct list_head  buf_list; /* chain on srpc_service::*_msgq */
 165         struct srpc_msg   buf_msg;
 166         struct lnet_handle_md   buf_mdh;
 167         lnet_nid_t        buf_self;
 168         struct lnet_process_id  buf_peer;
 169 };
 170
 171 struct swi_workitem;
 172 typedef int (*swi_action_t) (struct swi_workitem *);
 173
 174 struct swi_workitem {
 175         struct cfs_wi_sched *swi_sched;
 176         struct cfs_workitem swi_workitem;
 177         swi_action_t        swi_action;
 178         int                 swi_state;
 179 };
 180
 181 /* server-side state of a RPC */
 182 struct srpc_server_rpc {
 183         /* chain on srpc_service::*_rpcq */
 184         struct list_head       srpc_list;
 185         struct srpc_service_cd *srpc_scd;
 186         struct swi_workitem     srpc_wi;
 187         struct srpc_event       srpc_ev;        /* bulk/reply event */
 188         lnet_nid_t             srpc_self;
 189         struct lnet_process_id  srpc_peer;
 190         struct srpc_msg         srpc_replymsg;
 191         struct lnet_handle_md   srpc_replymdh;
 192         struct srpc_buffer      *srpc_reqstbuf;
 193         struct srpc_bulk        *srpc_bulk;
 194
 195         unsigned int           srpc_aborted; /* being given up */
 196         int                    srpc_status;
 197         void                   (*srpc_done)(struct srpc_server_rpc *);
 198 };
 199
 200 /* client-side state of a RPC */
 201 struct srpc_client_rpc {
 202         struct list_head  crpc_list;      /* chain on user's lists */
 203         spinlock_t        crpc_lock;      /* serialize */
 204         int               crpc_service;
 205         atomic_t          crpc_refcount;
 206         int               crpc_timeout;   /* # seconds to wait for reply */
 207         struct stt_timer       crpc_timer;
 208         struct swi_workitem     crpc_wi;
 209         struct lnet_process_id  crpc_dest;
 210
 211         void              (*crpc_done)(struct srpc_client_rpc *);
 212         void              (*crpc_fini)(struct srpc_client_rpc *);
 213         int               crpc_status;    /* completion status */
 214         void              *crpc_priv;     /* caller data */
 215
 216         /* state flags */
 217         unsigned int      crpc_aborted:1; /* being given up */
 218         unsigned int      crpc_closed:1;  /* completed */
 219
 220         /* RPC events */
 221         struct srpc_event       crpc_bulkev;    /* bulk event */
 222         struct srpc_event       crpc_reqstev;   /* request event */
 223         struct srpc_event       crpc_replyev;   /* reply event */
 224
 225         /* bulk, request(reqst), and reply exchanged on wire */
 226         struct srpc_msg         crpc_reqstmsg;
 227         struct srpc_msg         crpc_replymsg;
 228         struct lnet_handle_md   crpc_reqstmdh;
 229         struct lnet_handle_md   crpc_replymdh;
 230         struct srpc_bulk        crpc_bulk;
 231 };
 232
 233 #define srpc_client_rpc_size(rpc)                                       \
 234 offsetof(struct srpc_client_rpc, crpc_bulk.bk_iovs[(rpc)->crpc_bulk.bk_niov])
 235
 236 #define srpc_client_rpc_addref(rpc)                                     \
 237 do {                                                                    \
 238         CDEBUG(D_NET, "RPC[%p] -> %s (%d)++\n",                         \
 239                (rpc), libcfs_id2str((rpc)->crpc_dest),                  \
 240                atomic_read(&(rpc)->crpc_refcount));                     \
 241         LASSERT(atomic_read(&(rpc)->crpc_refcount) > 0);                \
 242         atomic_inc(&(rpc)->crpc_refcount);                              \
 243 } while (0)
 244
 245 #define srpc_client_rpc_decref(rpc)                                     \
 246 do {                                                                    \
 247         CDEBUG(D_NET, "RPC[%p] -> %s (%d)--\n",                         \
 248                (rpc), libcfs_id2str((rpc)->crpc_dest),                  \
 249                atomic_read(&(rpc)->crpc_refcount));                     \
 250         LASSERT(atomic_read(&(rpc)->crpc_refcount) > 0);                \
 251         if (atomic_dec_and_test(&(rpc)->crpc_refcount))                 \
 252                 srpc_destroy_client_rpc(rpc);                           \
 253 } while (0)
 254
 255 #define srpc_event_pending(rpc)   (!(rpc)->crpc_bulkev.ev_fired ||      \
 256                                    !(rpc)->crpc_reqstev.ev_fired ||     \
 257                                    !(rpc)->crpc_replyev.ev_fired)
 258
 259 /* CPU partition data of srpc service */
 260 struct srpc_service_cd {
 261         /** serialize */
 262         spinlock_t              scd_lock;
 263         /** backref to service */
 264         struct srpc_service     *scd_svc;
 265         /** event buffer */
 266         struct srpc_event       scd_ev;
 267         /** free RPC descriptors */
 268         struct list_head        scd_rpc_free;
 269         /** in-flight RPCs */
 270         struct list_head        scd_rpc_active;
 271         /** workitem for posting buffer */
 272         struct swi_workitem     scd_buf_wi;
 273         /** CPT id */
 274         int                     scd_cpt;
 275         /** error code for scd_buf_wi */
 276         int                     scd_buf_err;
 277         /** timestamp for scd_buf_err */
 278         time64_t                scd_buf_err_stamp;
 279         /** total # request buffers */
 280         int                     scd_buf_total;
 281         /** # posted request buffers */
 282         int                     scd_buf_nposted;
 283         /** in progress of buffer posting */
 284         int                     scd_buf_posting;
 285         /** allocate more buffers if scd_buf_nposted < scd_buf_low */
 286         int                     scd_buf_low;
 287         /** increase/decrease some buffers */
 288         int                     scd_buf_adjust;
 289         /** posted message buffers */
 290         struct list_head        scd_buf_posted;
 291         /** blocked for RPC descriptor */
 292         struct list_head        scd_buf_blocked;
 293 };
 294
 295 /* number of server workitems (mini-thread) for testing service */
 296 #define SFW_TEST_WI_MIN         256
 297 #define SFW_TEST_WI_MAX         2048
 298 /* extra buffers for tolerating buggy peers, or unbalanced number
 299  * of peers between partitions
 300  */
 301 #define SFW_TEST_WI_EXTRA       64
 302
 303 /* number of server workitems (mini-thread) for framework service */
 304 #define SFW_FRWK_WI_MIN         16
 305 #define SFW_FRWK_WI_MAX         256
 306
 307 struct srpc_service {
 308         int                     sv_id;          /* service id */
 309         const char              *sv_name;       /* human readable name */
 310         int                     sv_wi_total;    /* total server workitems */
 311         int                     sv_shuttingdown;
 312         int                     sv_ncpts;
 313         /* percpt data for srpc_service */
 314         struct srpc_service_cd  **sv_cpt_data;
 315         /* Service callbacks:
 316          * - sv_handler: process incoming RPC request
 317          * - sv_bulk_ready: notify bulk data
 318          */
 319         int (*sv_handler)(struct srpc_server_rpc *);
 320         int (*sv_bulk_ready)(struct srpc_server_rpc *, int);
 321 };
 322
 323 struct sfw_session {
 324         struct list_head sn_list;    /* chain on fw_zombie_sessions */
 325         struct lst_sid   sn_id;      /* unique identifier */
 326         unsigned int     sn_timeout; /* # seconds' inactivity to expire */
 327         int              sn_timer_active;
 328         unsigned int     sn_features;
 329         struct stt_timer      sn_timer;
 330         struct list_head sn_batches; /* list of batches */
 331         char             sn_name[LST_NAME_SIZE];
 332         atomic_t         sn_refcount;
 333         atomic_t         sn_brw_errors;
 334         atomic_t         sn_ping_errors;
 335         unsigned long    sn_started;
 336 };
 337
 338 #define sfw_sid_equal(sid0, sid1)     ((sid0).ses_nid == (sid1).ses_nid && \
 339                                        (sid0).ses_stamp == (sid1).ses_stamp)
 340
 341 struct sfw_batch {
 342         struct list_head bat_list;      /* chain on sn_batches */
 343         struct lst_bid   bat_id;        /* batch id */
 344         int              bat_error;     /* error code of batch */
 345         struct sfw_session      *bat_session;   /* batch's session */
 346         atomic_t         bat_nactive;   /* # of active tests */
 347         struct list_head bat_tests;     /* test instances */
 348 };
 349
 350 struct sfw_test_client_ops {
 351         int  (*tso_init)(struct sfw_test_instance *tsi); /* initialize test
 352                                                           * client
 353                                                           */
 354         void (*tso_fini)(struct sfw_test_instance *tsi); /* finalize test
 355                                                           * client
 356                                                           */
 357         int  (*tso_prep_rpc)(struct sfw_test_unit *tsu,
 358                              struct lnet_process_id dest,
 359                              struct srpc_client_rpc **rpc);     /* prep a tests rpc */
 360         void (*tso_done_rpc)(struct sfw_test_unit *tsu,
 361                              struct srpc_client_rpc *rpc);      /* done a test rpc */
 362 };
 363
 364 struct sfw_test_instance {
 365         struct list_head           tsi_list;            /* chain on batch */
 366         int                        tsi_service;         /* test type */
 367         struct sfw_batch                *tsi_batch;     /* batch */
 368         struct sfw_test_client_ops      *tsi_ops;       /* test client operation
 369                                                          */
 370
 371         /* public parameter for all test units */
 372         unsigned int               tsi_is_client:1;     /* is test client */
 373         unsigned int               tsi_stoptsu_onerr:1; /* stop tsu on error */
 374         int                        tsi_concur;          /* concurrency */
 375         int                        tsi_loop;            /* loop count */
 376
 377         /* status of test instance */
 378         spinlock_t                 tsi_lock;            /* serialize */
 379         unsigned int               tsi_stopping:1;      /* test is stopping */
 380         atomic_t                   tsi_nactive;         /* # of active test
 381                                                          * unit
 382                                                          */
 383         struct list_head           tsi_units;           /* test units */
 384         struct list_head           tsi_free_rpcs;       /* free rpcs */
 385         struct list_head           tsi_active_rpcs;     /* active rpcs */
 386
 387         union {
 388                 struct test_ping_req    ping;           /* ping parameter */
 389                 struct test_bulk_req    bulk_v0;        /* bulk parameter */
 390                 struct test_bulk_req_v1 bulk_v1;        /* bulk v1 parameter */
 391         } tsi_u;
 392 };
 393
 394 /*
 395  * XXX: trailing (PAGE_SIZE % sizeof(struct lnet_process_id)) bytes at the end
 396  * of pages are not used
 397  */
 398 #define SFW_MAX_CONCUR     LST_MAX_CONCUR
 399 #define SFW_ID_PER_PAGE    (PAGE_SIZE / sizeof(struct lnet_process_id_packed))
 400 #define SFW_MAX_NDESTS     (LNET_MAX_IOV * SFW_ID_PER_PAGE)
 401 #define sfw_id_pages(n)    (((n) + SFW_ID_PER_PAGE - 1) / SFW_ID_PER_PAGE)
 402
 403 struct sfw_test_unit {
 404         struct list_head    tsu_list;      /* chain on lst_test_instance */
 405         struct lnet_process_id          tsu_dest;       /* id of dest node */
 406         int                 tsu_loop;      /* loop count of the test */
 407         struct sfw_test_instance        *tsu_instance; /* pointer to test instance */
 408         void                *tsu_private;  /* private data */
 409         struct swi_workitem     tsu_worker;     /* workitem of the test unit */
 410 };
 411
 412 struct sfw_test_case {
 413         struct list_head      tsc_list;         /* chain on fw_tests */
 414         struct srpc_service             *tsc_srv_service;       /* test service */
 415         struct sfw_test_client_ops      *tsc_cli_ops;   /* ops of test client */
 416 };
 417
 418 struct srpc_client_rpc *
 419 sfw_create_rpc(struct lnet_process_id peer, int service,
 420                unsigned int features, int nbulkiov, int bulklen,
 421                void (*done)(struct srpc_client_rpc *), void *priv);
 422 int sfw_create_test_rpc(struct sfw_test_unit *tsu,
 423                         struct lnet_process_id peer, unsigned int features,
 424                         int nblk, int blklen, struct srpc_client_rpc **rpc);
 425 void sfw_abort_rpc(struct srpc_client_rpc *rpc);
 426 void sfw_post_rpc(struct srpc_client_rpc *rpc);
 427 void sfw_client_rpc_done(struct srpc_client_rpc *rpc);
 428 void sfw_unpack_message(struct srpc_msg *msg);
 429 void sfw_free_pages(struct srpc_server_rpc *rpc);
 430 void sfw_add_bulk_page(struct srpc_bulk *bk, struct page *pg, int i);
 431 int sfw_alloc_pages(struct srpc_server_rpc *rpc, int cpt, int npages, int len,
 432                     int sink);
 433 int sfw_make_session(struct srpc_mksn_reqst *request,
 434                      struct srpc_mksn_reply *reply);
 435
 436 struct srpc_client_rpc *
 437 srpc_create_client_rpc(struct lnet_process_id peer, int service,
 438                        int nbulkiov, int bulklen,
 439                        void (*rpc_done)(struct srpc_client_rpc *),
 440                        void (*rpc_fini)(struct srpc_client_rpc *), void *priv);
 441 void srpc_post_rpc(struct srpc_client_rpc *rpc);
 442 void srpc_abort_rpc(struct srpc_client_rpc *rpc, int why);
 443 void srpc_free_bulk(struct srpc_bulk *bk);
 444 struct srpc_bulk *srpc_alloc_bulk(int cpt, unsigned int off,
 445                                   unsigned int bulk_npg, unsigned int bulk_len,
 446                                   int sink);
 447 int srpc_send_rpc(struct swi_workitem *wi);
 448 int srpc_send_reply(struct srpc_server_rpc *rpc);
 449 int srpc_add_service(struct srpc_service *sv);
 450 int srpc_remove_service(struct srpc_service *sv);
 451 void srpc_shutdown_service(struct srpc_service *sv);
 452 void srpc_abort_service(struct srpc_service *sv);
 453 int srpc_finish_service(struct srpc_service *sv);
 454 int srpc_service_add_buffers(struct srpc_service *sv, int nbuffer);
 455 void srpc_service_remove_buffers(struct srpc_service *sv, int nbuffer);
 456 void srpc_get_counters(struct srpc_counters *cnt);
 457 void srpc_set_counters(const struct srpc_counters *cnt);
 458
 459 extern struct cfs_wi_sched *lst_sched_serial;
 460 extern struct cfs_wi_sched **lst_sched_test;
 461
 462 static inline int
 463 srpc_serv_is_framework(struct srpc_service *svc)
 464 {
 465         return svc->sv_id < SRPC_FRAMEWORK_SERVICE_MAX_ID;
 466 }
 467
 468 static inline int
 469 swi_wi_action(struct cfs_workitem *wi)
 470 {
 471         struct swi_workitem *swi;
 472
 473         swi = container_of(wi, struct swi_workitem, swi_workitem);
 474
 475         return swi->swi_action(swi);
 476 }
 477
 478 static inline void
 479 swi_init_workitem(struct swi_workitem *swi, void *data,
 480                   swi_action_t action, struct cfs_wi_sched *sched)
 481 {
 482         swi->swi_sched = sched;
 483         swi->swi_action = action;
 484         swi->swi_state = SWI_STATE_NEWBORN;
 485         cfs_wi_init(&swi->swi_workitem, data, swi_wi_action);
 486 }
 487
 488 static inline void
 489 swi_schedule_workitem(struct swi_workitem *wi)
 490 {
 491         cfs_wi_schedule(wi->swi_sched, &wi->swi_workitem);
 492 }
 493
 494 static inline void
 495 swi_exit_workitem(struct swi_workitem *swi)
 496 {
 497         cfs_wi_exit(swi->swi_sched, &swi->swi_workitem);
 498 }
 499
 500 static inline int
 501 swi_deschedule_workitem(struct swi_workitem *swi)
 502 {
 503         return cfs_wi_deschedule(swi->swi_sched, &swi->swi_workitem);
 504 }
 505
 506 int sfw_startup(void);
 507 int srpc_startup(void);
 508 void sfw_shutdown(void);
 509 void srpc_shutdown(void);
 510
 511 static inline void
 512 srpc_destroy_client_rpc(struct srpc_client_rpc *rpc)
 513 {
 514         LASSERT(rpc);
 515         LASSERT(!srpc_event_pending(rpc));
 516         LASSERT(!atomic_read(&rpc->crpc_refcount));
 517
 518         if (!rpc->crpc_fini)
 519                 LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc));
 520         else
 521                 (*rpc->crpc_fini)(rpc);
 522 }
 523
 524 static inline void
 525 srpc_init_client_rpc(struct srpc_client_rpc *rpc, struct lnet_process_id peer,
 526                      int service, int nbulkiov, int bulklen,
 527                      void (*rpc_done)(struct srpc_client_rpc *),
 528                      void (*rpc_fini)(struct srpc_client_rpc *), void *priv)
 529 {
 530         LASSERT(nbulkiov <= LNET_MAX_IOV);
 531
 532         memset(rpc, 0, offsetof(struct srpc_client_rpc,
 533                                 crpc_bulk.bk_iovs[nbulkiov]));
 534
 535         INIT_LIST_HEAD(&rpc->crpc_list);
 536         swi_init_workitem(&rpc->crpc_wi, rpc, srpc_send_rpc,
 537                           lst_sched_test[lnet_cpt_of_nid(peer.nid)]);
 538         spin_lock_init(&rpc->crpc_lock);
 539         atomic_set(&rpc->crpc_refcount, 1); /* 1 ref for caller */
 540
 541         rpc->crpc_dest = peer;
 542         rpc->crpc_priv = priv;
 543         rpc->crpc_service = service;
 544         rpc->crpc_bulk.bk_len = bulklen;
 545         rpc->crpc_bulk.bk_niov = nbulkiov;
 546         rpc->crpc_done = rpc_done;
 547         rpc->crpc_fini = rpc_fini;
 548         LNetInvalidateMDHandle(&rpc->crpc_reqstmdh);
 549         LNetInvalidateMDHandle(&rpc->crpc_replymdh);
 550         LNetInvalidateMDHandle(&rpc->crpc_bulk.bk_mdh);
 551
 552         /* no event is expected at this point */
 553         rpc->crpc_bulkev.ev_fired = 1;
 554         rpc->crpc_reqstev.ev_fired = 1;
 555         rpc->crpc_replyev.ev_fired = 1;
 556
 557         rpc->crpc_reqstmsg.msg_magic = SRPC_MSG_MAGIC;
 558         rpc->crpc_reqstmsg.msg_version = SRPC_MSG_VERSION;
 559         rpc->crpc_reqstmsg.msg_type = srpc_service2request(service);
 560 }
 561
 562 static inline const char *
 563 swi_state2str(int state)
 564 {
 565 #define STATE2STR(x) case x: return #x
 566         switch (state) {
 567         default:
 568                 LBUG();
 569         STATE2STR(SWI_STATE_NEWBORN);
 570         STATE2STR(SWI_STATE_REPLY_SUBMITTED);
 571         STATE2STR(SWI_STATE_REPLY_SENT);
 572         STATE2STR(SWI_STATE_REQUEST_SUBMITTED);
 573         STATE2STR(SWI_STATE_REQUEST_SENT);
 574         STATE2STR(SWI_STATE_REPLY_RECEIVED);
 575         STATE2STR(SWI_STATE_BULK_STARTED);
 576         STATE2STR(SWI_STATE_DONE);
 577         }
 578 #undef STATE2STR
 579 }
 580
 581 #define selftest_wait_events()                                  \
 582         do {                                                    \
 583                 set_current_state(TASK_UNINTERRUPTIBLE);        \
 584                 schedule_timeout(cfs_time_seconds(1) / 10);     \
 585         } while (0)
 586
 587 #define lst_wait_until(cond, lock, fmt, ...)                            \
 588 do {                                                                    \
 589         int __I = 2;                                                    \
 590         while (!(cond)) {                                               \
 591                 CDEBUG(is_power_of_2(++__I) ? D_WARNING : D_NET,        \
 592                        fmt, ## __VA_ARGS__);                            \
 593                 spin_unlock(&(lock));                                   \
 594                                                                         \
 595                 selftest_wait_events();                                 \
 596                                                                         \
 597                 spin_lock(&(lock));                                     \
 598         }                                                               \
 599 } while (0)
 600
 601 static inline void
 602 srpc_wait_service_shutdown(struct srpc_service *sv)
 603 {
 604         int i = 2;
 605
 606         LASSERT(sv->sv_shuttingdown);
 607
 608         while (!srpc_finish_service(sv)) {
 609                 i++;
 610                 CDEBUG(((i & -i) == i) ? D_WARNING : D_NET,
 611                        "Waiting for %s service to shutdown...\n",
 612                        sv->sv_name);
 613                 selftest_wait_events();
 614         }
 615 }
 616
 617 extern struct sfw_test_client_ops brw_test_client;
 618 void brw_init_test_client(void);
 619
 620 extern struct srpc_service brw_test_service;
 621 void brw_init_test_service(void);
 622
 623 extern struct sfw_test_client_ops ping_test_client;
 624 void ping_init_test_client(void);
 625
 626 extern struct srpc_service ping_test_service;
 627 void ping_init_test_service(void);
 628
 629 #endif /* __SELFTEST_SELFTEST_H__ */