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.sun.com/software/products/lustre/docs/GPLv2.pdf
  19  * copy of GPLv2].
  20  *
  21  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  22  * CA 95054 USA or visit www.sun.com if you need additional information or
  23  * have any questions.
  24  *
  25  * GPL HEADER END
  26  */
  27 /*
  28  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  29  * Use is subject to license terms.
  30  *
  31  * Copyright (c) 2012, Intel Corporation.
  32  */
  33 /*
  34  * This file is part of Lustre, http://www.lustre.org/
  35  * Lustre is a trademark of Sun Microsystems, Inc.
  36  *
  37  * lnet/selftest/selftest.h
  38  *
  39  * Author: Isaac Huang <isaac@clusterfs.com>
  40  */
  41 #ifndef __SELFTEST_SELFTEST_H__
  42 #define __SELFTEST_SELFTEST_H__
  43
  44 #define LNET_ONLY
  45
  46 #include "../../include/linux/libcfs/libcfs.h"
  47 #include "../../include/linux/lnet/lnet.h"
  48 #include "../../include/linux/lnet/lib-lnet.h"
  49 #include "../../include/linux/lnet/lib-types.h"
  50 #include "../../include/linux/lnet/lnetst.h"
  51
  52 #include "rpc.h"
  53 #include "timer.h"
  54
  55 #ifndef MADE_WITHOUT_COMPROMISE
  56 #define MADE_WITHOUT_COMPROMISE
  57 #endif
  58
  59 #define SWI_STATE_NEWBORN               0
  60 #define SWI_STATE_REPLY_SUBMITTED       1
  61 #define SWI_STATE_REPLY_SENT            2
  62 #define SWI_STATE_REQUEST_SUBMITTED     3
  63 #define SWI_STATE_REQUEST_SENT          4
  64 #define SWI_STATE_REPLY_RECEIVED        5
  65 #define SWI_STATE_BULK_STARTED          6
  66 #define SWI_STATE_DONE                  10
  67
  68 /* forward refs */
  69 struct srpc_service;
  70 struct srpc_service_cd;
  71 struct sfw_test_unit;
  72 struct sfw_test_instance;
  73
  74 /* services below SRPC_FRAMEWORK_SERVICE_MAX_ID are framework
  75  * services, e.g. create/modify session.
  76  */
  77 #define SRPC_SERVICE_DEBUG              0
  78 #define SRPC_SERVICE_MAKE_SESSION       1
  79 #define SRPC_SERVICE_REMOVE_SESSION     2
  80 #define SRPC_SERVICE_BATCH              3
  81 #define SRPC_SERVICE_TEST               4
  82 #define SRPC_SERVICE_QUERY_STAT         5
  83 #define SRPC_SERVICE_JOIN               6
  84 #define SRPC_FRAMEWORK_SERVICE_MAX_ID   10
  85 /* other services start from SRPC_FRAMEWORK_SERVICE_MAX_ID+1 */
  86 #define SRPC_SERVICE_BRW                11
  87 #define SRPC_SERVICE_PING               12
  88 #define SRPC_SERVICE_MAX_ID             12
  89
  90 #define SRPC_REQUEST_PORTAL             50
  91 /* a lazy portal for framework RPC requests */
  92 #define SRPC_FRAMEWORK_REQUEST_PORTAL   51
  93 /* all reply/bulk RDMAs go to this portal */
  94 #define SRPC_RDMA_PORTAL                52
  95
  96 static inline enum srpc_msg_type
  97 srpc_service2request(int service)
  98 {
  99         switch (service) {
 100         default:
 101                 LBUG();
 102         case SRPC_SERVICE_DEBUG:
 103                 return SRPC_MSG_DEBUG_REQST;
 104
 105         case SRPC_SERVICE_MAKE_SESSION:
 106                 return SRPC_MSG_MKSN_REQST;
 107
 108         case SRPC_SERVICE_REMOVE_SESSION:
 109                 return SRPC_MSG_RMSN_REQST;
 110
 111         case SRPC_SERVICE_BATCH:
 112                 return SRPC_MSG_BATCH_REQST;
 113
 114         case SRPC_SERVICE_TEST:
 115                 return SRPC_MSG_TEST_REQST;
 116
 117         case SRPC_SERVICE_QUERY_STAT:
 118                 return SRPC_MSG_STAT_REQST;
 119
 120         case SRPC_SERVICE_BRW:
 121                 return SRPC_MSG_BRW_REQST;
 122
 123         case SRPC_SERVICE_PING:
 124                 return SRPC_MSG_PING_REQST;
 125
 126         case SRPC_SERVICE_JOIN:
 127                 return SRPC_MSG_JOIN_REQST;
 128         }
 129 }
 130
 131 static inline enum srpc_msg_type
 132 srpc_service2reply(int service)
 133 {
 134         return srpc_service2request(service) + 1;
 135 }
 136
 137 enum srpc_event_type {
 138         SRPC_BULK_REQ_RCVD   = 1, /* passive bulk request(PUT sink/GET source)
 139                                    * received */
 140         SRPC_BULK_PUT_SENT   = 2, /* active bulk PUT sent (source) */
 141         SRPC_BULK_GET_RPLD   = 3, /* active bulk GET replied (sink) */
 142         SRPC_REPLY_RCVD      = 4, /* incoming reply received */
 143         SRPC_REPLY_SENT      = 5, /* outgoing reply sent */
 144         SRPC_REQUEST_RCVD    = 6, /* incoming request received */
 145         SRPC_REQUEST_SENT    = 7, /* outgoing request sent */
 146 };
 147
 148 /* RPC event */
 149 struct srpc_event {
 150         enum srpc_event_type    ev_type;        /* what's up */
 151         lnet_event_kind_t ev_lnet;   /* LNet event type */
 152         int               ev_fired;  /* LNet event fired? */
 153         int               ev_status; /* LNet event status */
 154         void              *ev_data;  /* owning server/client RPC */
 155 };
 156
 157 /* bulk descriptor */
 158 struct srpc_bulk {
 159         int              bk_len;     /* len of bulk data */
 160         lnet_handle_md_t bk_mdh;
 161         int              bk_sink;    /* sink/source */
 162         int              bk_niov;    /* # iov in bk_iovs */
 163         lnet_kiov_t      bk_iovs[0];
 164 };
 165
 166 /* message buffer descriptor */
 167 struct srpc_buffer {
 168         struct list_head  buf_list; /* chain on srpc_service::*_msgq */
 169         struct srpc_msg   buf_msg;
 170         lnet_handle_md_t  buf_mdh;
 171         lnet_nid_t        buf_self;
 172         lnet_process_id_t buf_peer;
 173 };
 174
 175 struct swi_workitem;
 176 typedef int (*swi_action_t) (struct swi_workitem *);
 177
 178 struct swi_workitem {
 179         struct cfs_wi_sched *swi_sched;
 180         struct cfs_workitem swi_workitem;
 181         swi_action_t        swi_action;
 182         int                 swi_state;
 183 };
 184
 185 /* server-side state of a RPC */
 186 struct srpc_server_rpc {
 187         /* chain on srpc_service::*_rpcq */
 188         struct list_head       srpc_list;
 189         struct srpc_service_cd *srpc_scd;
 190         struct swi_workitem     srpc_wi;
 191         struct srpc_event       srpc_ev;        /* bulk/reply event */
 192         lnet_nid_t             srpc_self;
 193         lnet_process_id_t      srpc_peer;
 194         struct srpc_msg         srpc_replymsg;
 195         lnet_handle_md_t       srpc_replymdh;
 196         struct srpc_buffer      *srpc_reqstbuf;
 197         struct srpc_bulk        *srpc_bulk;
 198
 199         unsigned int           srpc_aborted; /* being given up */
 200         int                    srpc_status;
 201         void                   (*srpc_done)(struct srpc_server_rpc *);
 202 };
 203
 204 /* client-side state of a RPC */
 205 struct srpc_client_rpc {
 206         struct list_head  crpc_list;      /* chain on user's lists */
 207         spinlock_t        crpc_lock;      /* serialize */
 208         int               crpc_service;
 209         atomic_t          crpc_refcount;
 210         int               crpc_timeout;   /* # seconds to wait for reply */
 211         struct stt_timer       crpc_timer;
 212         struct swi_workitem     crpc_wi;
 213         lnet_process_id_t crpc_dest;
 214
 215         void              (*crpc_done)(struct srpc_client_rpc *);
 216         void              (*crpc_fini)(struct srpc_client_rpc *);
 217         int               crpc_status;    /* completion status */
 218         void              *crpc_priv;     /* caller data */
 219
 220         /* state flags */
 221         unsigned int      crpc_aborted:1; /* being given up */
 222         unsigned int      crpc_closed:1;  /* completed */
 223
 224         /* RPC events */
 225         struct srpc_event       crpc_bulkev;    /* bulk event */
 226         struct srpc_event       crpc_reqstev;   /* request event */
 227         struct srpc_event       crpc_replyev;   /* reply event */
 228
 229         /* bulk, request(reqst), and reply exchanged on wire */
 230         struct srpc_msg         crpc_reqstmsg;
 231         struct srpc_msg         crpc_replymsg;
 232         lnet_handle_md_t  crpc_reqstmdh;
 233         lnet_handle_md_t  crpc_replymdh;
 234         struct srpc_bulk        crpc_bulk;
 235 };
 236
 237 #define srpc_client_rpc_size(rpc)                                       \
 238 offsetof(struct srpc_client_rpc, crpc_bulk.bk_iovs[(rpc)->crpc_bulk.bk_niov])
 239
 240 #define srpc_client_rpc_addref(rpc)                                     \
 241 do {                                                                    \
 242         CDEBUG(D_NET, "RPC[%p] -> %s (%d)++\n",                         \
 243                (rpc), libcfs_id2str((rpc)->crpc_dest),                  \
 244                atomic_read(&(rpc)->crpc_refcount));                     \
 245         LASSERT(atomic_read(&(rpc)->crpc_refcount) > 0);                \
 246         atomic_inc(&(rpc)->crpc_refcount);                              \
 247 } while (0)
 248
 249 #define srpc_client_rpc_decref(rpc)                                     \
 250 do {                                                                    \
 251         CDEBUG(D_NET, "RPC[%p] -> %s (%d)--\n",                         \
 252                (rpc), libcfs_id2str((rpc)->crpc_dest),                  \
 253                atomic_read(&(rpc)->crpc_refcount));                     \
 254         LASSERT(atomic_read(&(rpc)->crpc_refcount) > 0);                \
 255         if (atomic_dec_and_test(&(rpc)->crpc_refcount))                 \
 256                 srpc_destroy_client_rpc(rpc);                           \
 257 } while (0)
 258
 259 #define srpc_event_pending(rpc)   (!(rpc)->crpc_bulkev.ev_fired ||      \
 260                                    !(rpc)->crpc_reqstev.ev_fired ||     \
 261                                    !(rpc)->crpc_replyev.ev_fired)
 262
 263 /* CPU partition data of srpc service */
 264 struct srpc_service_cd {
 265         /** serialize */
 266         spinlock_t              scd_lock;
 267         /** backref to service */
 268         struct srpc_service     *scd_svc;
 269         /** event buffer */
 270         struct srpc_event       scd_ev;
 271         /** free RPC descriptors */
 272         struct list_head        scd_rpc_free;
 273         /** in-flight RPCs */
 274         struct list_head        scd_rpc_active;
 275         /** workitem for posting buffer */
 276         struct swi_workitem     scd_buf_wi;
 277         /** CPT id */
 278         int                     scd_cpt;
 279         /** error code for scd_buf_wi */
 280         int                     scd_buf_err;
 281         /** timestamp for scd_buf_err */
 282         time64_t                scd_buf_err_stamp;
 283         /** total # request buffers */
 284         int                     scd_buf_total;
 285         /** # posted request buffers */
 286         int                     scd_buf_nposted;
 287         /** in progress of buffer posting */
 288         int                     scd_buf_posting;
 289         /** allocate more buffers if scd_buf_nposted < scd_buf_low */
 290         int                     scd_buf_low;
 291         /** increase/decrease some buffers */
 292         int                     scd_buf_adjust;
 293         /** posted message buffers */
 294         struct list_head        scd_buf_posted;
 295         /** blocked for RPC descriptor */
 296         struct list_head        scd_buf_blocked;
 297 };
 298
 299 /* number of server workitems (mini-thread) for testing service */
 300 #define SFW_TEST_WI_MIN         256
 301 #define SFW_TEST_WI_MAX         2048
 302 /* extra buffers for tolerating buggy peers, or unbalanced number
 303  * of peers between partitions  */
 304 #define SFW_TEST_WI_EXTRA       64
 305
 306 /* number of server workitems (mini-thread) for framework service */
 307 #define SFW_FRWK_WI_MIN         16
 308 #define SFW_FRWK_WI_MAX         256
 309
 310 struct srpc_service {
 311         int                     sv_id;          /* service id */
 312         const char              *sv_name;       /* human readable name */
 313         int                     sv_wi_total;    /* total server workitems */
 314         int                     sv_shuttingdown;
 315         int                     sv_ncpts;
 316         /* percpt data for srpc_service */
 317         struct srpc_service_cd  **sv_cpt_data;
 318         /* Service callbacks:
 319          * - sv_handler: process incoming RPC request
 320          * - sv_bulk_ready: notify bulk data
 321          */
 322         int (*sv_handler)(struct srpc_server_rpc *);
 323         int (*sv_bulk_ready)(struct srpc_server_rpc *, int);
 324 };
 325
 326 struct sfw_session {
 327         struct list_head sn_list;    /* chain on fw_zombie_sessions */
 328         lst_sid_t        sn_id;      /* unique identifier */
 329         unsigned int     sn_timeout; /* # seconds' inactivity to expire */
 330         int              sn_timer_active;
 331         unsigned int     sn_features;
 332         struct stt_timer      sn_timer;
 333         struct list_head sn_batches; /* list of batches */
 334         char             sn_name[LST_NAME_SIZE];
 335         atomic_t         sn_refcount;
 336         atomic_t         sn_brw_errors;
 337         atomic_t         sn_ping_errors;
 338         unsigned long    sn_started;
 339 };
 340
 341 #define sfw_sid_equal(sid0, sid1)     ((sid0).ses_nid == (sid1).ses_nid && \
 342                                        (sid0).ses_stamp == (sid1).ses_stamp)
 343
 344 struct sfw_batch {
 345         struct list_head bat_list;      /* chain on sn_batches */
 346         lst_bid_t        bat_id;        /* batch id */
 347         int              bat_error;     /* error code of batch */
 348         struct sfw_session      *bat_session;   /* batch's session */
 349         atomic_t         bat_nactive;   /* # of active tests */
 350         struct list_head bat_tests;     /* test instances */
 351 };
 352
 353 struct sfw_test_client_ops {
 354         int  (*tso_init)(struct sfw_test_instance *tsi); /* initialize test
 355                                                           * client */
 356         void (*tso_fini)(struct sfw_test_instance *tsi); /* finalize test
 357                                                           * client */
 358         int  (*tso_prep_rpc)(struct sfw_test_unit *tsu,
 359                              lnet_process_id_t dest,
 360                              struct srpc_client_rpc **rpc);     /* prep a tests rpc */
 361         void (*tso_done_rpc)(struct sfw_test_unit *tsu,
 362                              struct srpc_client_rpc *rpc);      /* done a test rpc */
 363 };
 364
 365 struct sfw_test_instance {
 366         struct list_head           tsi_list;            /* chain on batch */
 367         int                        tsi_service;         /* test type */
 368         struct sfw_batch                *tsi_batch;     /* batch */
 369         struct sfw_test_client_ops      *tsi_ops;       /* test client operation
 370                                                          */
 371
 372         /* public parameter for all test units */
 373         unsigned int               tsi_is_client:1;     /* is test client */
 374         unsigned int               tsi_stoptsu_onerr:1; /* stop tsu on error */
 375         int                        tsi_concur;          /* concurrency */
 376         int                        tsi_loop;            /* loop count */
 377
 378         /* status of test instance */
 379         spinlock_t                 tsi_lock;            /* serialize */
 380         unsigned int               tsi_stopping:1;      /* test is stopping */
 381         atomic_t                   tsi_nactive;         /* # of active test
 382                                                          * unit */
 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 /* XXX: trailing (PAGE_SIZE % sizeof(lnet_process_id_t)) bytes at the end of
 395  * pages are not used */
 396 #define SFW_MAX_CONCUR     LST_MAX_CONCUR
 397 #define SFW_ID_PER_PAGE    (PAGE_SIZE / sizeof(lnet_process_id_packed_t))
 398 #define SFW_MAX_NDESTS     (LNET_MAX_IOV * SFW_ID_PER_PAGE)
 399 #define sfw_id_pages(n)    (((n) + SFW_ID_PER_PAGE - 1) / SFW_ID_PER_PAGE)
 400
 401 struct sfw_test_unit {
 402         struct list_head    tsu_list;      /* chain on lst_test_instance */
 403         lnet_process_id_t   tsu_dest;      /* id of dest node */
 404         int                 tsu_loop;      /* loop count of the test */
 405         struct sfw_test_instance        *tsu_instance; /* pointer to test instance */
 406         void                *tsu_private;  /* private data */
 407         struct swi_workitem     tsu_worker;     /* workitem of the test unit */
 408 };
 409
 410 struct sfw_test_case {
 411         struct list_head      tsc_list;         /* chain on fw_tests */
 412         struct srpc_service             *tsc_srv_service;       /* test service */
 413         struct sfw_test_client_ops      *tsc_cli_ops;   /* ops of test client */
 414 };
 415
 416 struct srpc_client_rpc *
 417 sfw_create_rpc(lnet_process_id_t peer, int service,
 418                unsigned features, int nbulkiov, int bulklen,
 419                void (*done)(struct srpc_client_rpc *), void *priv);
 420 int sfw_create_test_rpc(struct sfw_test_unit *tsu,
 421                         lnet_process_id_t peer, unsigned features,
 422                         int nblk, int blklen, struct srpc_client_rpc **rpc);
 423 void sfw_abort_rpc(struct srpc_client_rpc *rpc);
 424 void sfw_post_rpc(struct srpc_client_rpc *rpc);
 425 void sfw_client_rpc_done(struct srpc_client_rpc *rpc);
 426 void sfw_unpack_message(struct srpc_msg *msg);
 427 void sfw_free_pages(struct srpc_server_rpc *rpc);
 428 void sfw_add_bulk_page(struct srpc_bulk *bk, struct page *pg, int i);
 429 int sfw_alloc_pages(struct srpc_server_rpc *rpc, int cpt, int npages, int len,
 430                     int sink);
 431 int sfw_make_session(struct srpc_mksn_reqst *request,
 432                      struct srpc_mksn_reply *reply);
 433
 434 struct srpc_client_rpc *
 435 srpc_create_client_rpc(lnet_process_id_t peer, int service,
 436                        int nbulkiov, int bulklen,
 437                        void (*rpc_done)(struct srpc_client_rpc *),
 438                        void (*rpc_fini)(struct srpc_client_rpc *), void *priv);
 439 void srpc_post_rpc(struct srpc_client_rpc *rpc);
 440 void srpc_abort_rpc(struct srpc_client_rpc *rpc, int why);
 441 void srpc_free_bulk(struct srpc_bulk *bk);
 442 struct srpc_bulk *srpc_alloc_bulk(int cpt, unsigned bulk_npg,
 443                                   unsigned bulk_len, int sink);
 444 int srpc_send_rpc(struct swi_workitem *wi);
 445 int srpc_send_reply(struct srpc_server_rpc *rpc);
 446 int srpc_add_service(struct srpc_service *sv);
 447 int srpc_remove_service(struct srpc_service *sv);
 448 void srpc_shutdown_service(struct srpc_service *sv);
 449 void srpc_abort_service(struct srpc_service *sv);
 450 int srpc_finish_service(struct srpc_service *sv);
 451 int srpc_service_add_buffers(struct srpc_service *sv, int nbuffer);
 452 void srpc_service_remove_buffers(struct srpc_service *sv, int nbuffer);
 453 void srpc_get_counters(srpc_counters_t *cnt);
 454 void srpc_set_counters(const srpc_counters_t *cnt);
 455
 456 extern struct cfs_wi_sched *lst_sched_serial;
 457 extern struct cfs_wi_sched **lst_sched_test;
 458
 459 static inline int
 460 srpc_serv_is_framework(struct srpc_service *svc)
 461 {
 462         return svc->sv_id < SRPC_FRAMEWORK_SERVICE_MAX_ID;
 463 }
 464
 465 static inline int
 466 swi_wi_action(struct cfs_workitem *wi)
 467 {
 468         struct swi_workitem *swi;
 469
 470         swi = container_of(wi, struct swi_workitem, swi_workitem);
 471
 472         return swi->swi_action(swi);
 473 }
 474
 475 static inline void
 476 swi_init_workitem(struct swi_workitem *swi, void *data,
 477                   swi_action_t action, struct cfs_wi_sched *sched)
 478 {
 479         swi->swi_sched = sched;
 480         swi->swi_action = action;
 481         swi->swi_state = SWI_STATE_NEWBORN;
 482         cfs_wi_init(&swi->swi_workitem, data, swi_wi_action);
 483 }
 484
 485 static inline void
 486 swi_schedule_workitem(struct swi_workitem *wi)
 487 {
 488         cfs_wi_schedule(wi->swi_sched, &wi->swi_workitem);
 489 }
 490
 491 static inline void
 492 swi_exit_workitem(struct swi_workitem *swi)
 493 {
 494         cfs_wi_exit(swi->swi_sched, &swi->swi_workitem);
 495 }
 496
 497 static inline int
 498 swi_deschedule_workitem(struct swi_workitem *swi)
 499 {
 500         return cfs_wi_deschedule(swi->swi_sched, &swi->swi_workitem);
 501 }
 502
 503 int sfw_startup(void);
 504 int srpc_startup(void);
 505 void sfw_shutdown(void);
 506 void srpc_shutdown(void);
 507
 508 static inline void
 509 srpc_destroy_client_rpc(struct srpc_client_rpc *rpc)
 510 {
 511         LASSERT(rpc);
 512         LASSERT(!srpc_event_pending(rpc));
 513         LASSERT(!atomic_read(&rpc->crpc_refcount));
 514
 515         if (!rpc->crpc_fini)
 516                 LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc));
 517         else
 518                 (*rpc->crpc_fini)(rpc);
 519 }
 520
 521 static inline void
 522 srpc_init_client_rpc(struct srpc_client_rpc *rpc, lnet_process_id_t peer,
 523                      int service, int nbulkiov, int bulklen,
 524                      void (*rpc_done)(struct srpc_client_rpc *),
 525                      void (*rpc_fini)(struct srpc_client_rpc *), void *priv)
 526 {
 527         LASSERT(nbulkiov <= LNET_MAX_IOV);
 528
 529         memset(rpc, 0, offsetof(struct srpc_client_rpc,
 530                                 crpc_bulk.bk_iovs[nbulkiov]));
 531
 532         INIT_LIST_HEAD(&rpc->crpc_list);
 533         swi_init_workitem(&rpc->crpc_wi, rpc, srpc_send_rpc,
 534                           lst_sched_test[lnet_cpt_of_nid(peer.nid)]);
 535         spin_lock_init(&rpc->crpc_lock);
 536         atomic_set(&rpc->crpc_refcount, 1); /* 1 ref for caller */
 537
 538         rpc->crpc_dest = peer;
 539         rpc->crpc_priv = priv;
 540         rpc->crpc_service = service;
 541         rpc->crpc_bulk.bk_len = bulklen;
 542         rpc->crpc_bulk.bk_niov = nbulkiov;
 543         rpc->crpc_done = rpc_done;
 544         rpc->crpc_fini = rpc_fini;
 545         LNetInvalidateHandle(&rpc->crpc_reqstmdh);
 546         LNetInvalidateHandle(&rpc->crpc_replymdh);
 547         LNetInvalidateHandle(&rpc->crpc_bulk.bk_mdh);
 548
 549         /* no event is expected at this point */
 550         rpc->crpc_bulkev.ev_fired = 1;
 551         rpc->crpc_reqstev.ev_fired = 1;
 552         rpc->crpc_replyev.ev_fired = 1;
 553
 554         rpc->crpc_reqstmsg.msg_magic = SRPC_MSG_MAGIC;
 555         rpc->crpc_reqstmsg.msg_version = SRPC_MSG_VERSION;
 556         rpc->crpc_reqstmsg.msg_type = srpc_service2request(service);
 557 }
 558
 559 static inline const char *
 560 swi_state2str(int state)
 561 {
 562 #define STATE2STR(x) case x: return #x
 563         switch (state) {
 564         default:
 565                 LBUG();
 566         STATE2STR(SWI_STATE_NEWBORN);
 567         STATE2STR(SWI_STATE_REPLY_SUBMITTED);
 568         STATE2STR(SWI_STATE_REPLY_SENT);
 569         STATE2STR(SWI_STATE_REQUEST_SUBMITTED);
 570         STATE2STR(SWI_STATE_REQUEST_SENT);
 571         STATE2STR(SWI_STATE_REPLY_RECEIVED);
 572         STATE2STR(SWI_STATE_BULK_STARTED);
 573         STATE2STR(SWI_STATE_DONE);
 574         }
 575 #undef STATE2STR
 576 }
 577
 578 #define selftest_wait_events()                                  \
 579         do {                                                    \
 580                 set_current_state(TASK_UNINTERRUPTIBLE);        \
 581                 schedule_timeout(cfs_time_seconds(1) / 10);     \
 582         } while (0)
 583
 584 #define lst_wait_until(cond, lock, fmt, ...)                            \
 585 do {                                                                    \
 586         int __I = 2;                                                    \
 587         while (!(cond)) {                                               \
 588                 CDEBUG(is_power_of_2(++__I) ? D_WARNING : D_NET,        \
 589                        fmt, ## __VA_ARGS__);                            \
 590                 spin_unlock(&(lock));                                   \
 591                                                                         \
 592                 selftest_wait_events();                                 \
 593                                                                         \
 594                 spin_lock(&(lock));                                     \
 595         }                                                               \
 596 } while (0)
 597
 598 static inline void
 599 srpc_wait_service_shutdown(struct srpc_service *sv)
 600 {
 601         int i = 2;
 602
 603         LASSERT(sv->sv_shuttingdown);
 604
 605         while (!srpc_finish_service(sv)) {
 606                 i++;
 607                 CDEBUG(((i & -i) == i) ? D_WARNING : D_NET,
 608                        "Waiting for %s service to shutdown...\n",
 609                        sv->sv_name);
 610                 selftest_wait_events();
 611         }
 612 }
 613
 614 extern struct sfw_test_client_ops brw_test_client;
 615 void brw_init_test_client(void);
 616
 617 extern struct srpc_service brw_test_service;
 618 void brw_init_test_service(void);
 619
 620 extern struct sfw_test_client_ops ping_test_client;
 621 void ping_init_test_client(void);
 622
 623 extern struct srpc_service ping_test_service;
 624 void ping_init_test_service(void);
 625
 626 #endif /* __SELFTEST_SELFTEST_H__ */