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