lnet/selftest/selftest.h

   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  *   Author: Isaac Huang <isaac@clusterfs.com>
   6  *
   7  */
   8 #ifndef __SELFTEST_SELFTEST_H__
   9 #define __SELFTEST_SELFTEST_H__
  10
  11 #define LNET_ONLY
  12
  13 #ifndef __KERNEL__
  14
  15 /* XXX workaround XXX */
  16 #ifdef HAVE_SYS_TYPES_H
  17 #include <sys/types.h>
  18 #endif
  19
  20 /* TODO: remove these when libcfs provides proper primitives for userspace
  21  *
  22  * Dummy implementations of spinlock_t and atomic_t work since userspace
  23  * selftest is completely single-threaded, even using multi-threaded usocklnd.
  24  */
  25 typedef struct { } spinlock_t;
  26 static inline void spin_lock(spinlock_t *l) {return;}
  27 static inline void spin_unlock(spinlock_t *l) {return;}
  28 static inline void spin_lock_init(spinlock_t *l) {return;}
  29
  30 typedef struct { volatile int counter; } atomic_t;
  31 #define atomic_read(a) ((a)->counter)
  32 #define atomic_set(a,b) do {(a)->counter = b; } while (0)
  33 #define atomic_dec_and_test(a) ((--((a)->counter)) == 0)
  34 #define atomic_inc(a)  (((a)->counter)++)
  35 #define atomic_dec(a)  do { (a)->counter--; } while (0)
  36
  37 #endif
  38
  39 #include <libcfs/kp30.h>
  40 #include <libcfs/libcfs.h>
  41 #include <lnet/lnet.h>
  42 #include <lnet/lib-lnet.h>
  43 #include <lnet/lib-types.h>
  44 #include <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
  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 swi_workitem;
  65 struct srpc_service;
  66 struct sfw_test_unit;
  67 struct sfw_test_instance;
  68
  69 /*
  70  * A workitems is deferred work with these semantics:
  71  * - a workitem always runs in thread context.
  72  * - a workitem can be concurrent with other workitems but is strictly
  73  *   serialized with respect to itself.
  74  * - no CPU affinity, a workitem does not necessarily run on the same CPU
  75  *   that schedules it. However, this might change in the future.
  76  * - if a workitem is scheduled again before it has a chance to run, it
  77  *   runs only once.
  78  * - if a workitem is scheduled while it runs, it runs again after it
  79  *   completes; this ensures that events occurring while other events are
  80  *   being processed receive due attention. This behavior also allows a
  81  *   workitem to reschedule itself.
  82  *
  83  * Usage notes:
  84  * - a workitem can sleep but it should be aware of how that sleep might
  85  *   affect others.
  86  * - a workitem runs inside a kernel thread so there's no user space to access.
  87  * - do not use a workitem if the scheduling latency can't be tolerated.
  88  *
  89  * When wi_action returns non-zero, it means the workitem has either been
  90  * freed or reused and workitem scheduler won't touch it any more.
  91  */
  92 typedef int (*swi_action_t) (struct swi_workitem *);
  93 typedef struct swi_workitem {
  94         struct list_head wi_list;        /* chain on runq */
  95         int              wi_state;
  96         swi_action_t     wi_action;
  97         void            *wi_data;
  98         unsigned int     wi_running:1;
  99         unsigned int     wi_scheduled:1;
 100 } swi_workitem_t;
 101
 102 static inline void
 103 swi_init_workitem (swi_workitem_t *wi, void *data, swi_action_t action)
 104 {
 105         CFS_INIT_LIST_HEAD(&wi->wi_list);
 106
 107         wi->wi_running   = 0;
 108         wi->wi_scheduled = 0;
 109         wi->wi_data      = data;
 110         wi->wi_action    = action;
 111         wi->wi_state     = SWI_STATE_NEWBORN;
 112 }
 113
 114 #define SWI_RESCHED    128         /* # workitem scheduler loops before reschedule */
 115
 116 /* services below SRPC_FRAMEWORK_SERVICE_MAX_ID are framework
 117  * services, e.g. create/modify session.
 118  */
 119 #define SRPC_SERVICE_DEBUG              0
 120 #define SRPC_SERVICE_MAKE_SESSION       1
 121 #define SRPC_SERVICE_REMOVE_SESSION     2
 122 #define SRPC_SERVICE_BATCH              3
 123 #define SRPC_SERVICE_TEST               4
 124 #define SRPC_SERVICE_QUERY_STAT         5
 125 #define SRPC_SERVICE_JOIN               6
 126 #define SRPC_FRAMEWORK_SERVICE_MAX_ID   10
 127 /* other services start from SRPC_FRAMEWORK_SERVICE_MAX_ID+1 */
 128 #define SRPC_SERVICE_BRW                11
 129 #define SRPC_SERVICE_PING               12
 130 #define SRPC_SERVICE_MAX_ID             12
 131
 132 #define SRPC_REQUEST_PORTAL             50
 133 /* a lazy portal for framework RPC requests */
 134 #define SRPC_FRAMEWORK_REQUEST_PORTAL   51
 135 /* all reply/bulk RDMAs go to this portal */
 136 #define SRPC_RDMA_PORTAL                52
 137
 138 static inline srpc_msg_type_t
 139 srpc_service2request (int service)
 140 {
 141         switch (service) {
 142         default:
 143                 LBUG ();
 144         case SRPC_SERVICE_DEBUG:
 145                 return SRPC_MSG_DEBUG_REQST;
 146
 147         case SRPC_SERVICE_MAKE_SESSION:
 148                 return SRPC_MSG_MKSN_REQST;
 149
 150         case SRPC_SERVICE_REMOVE_SESSION:
 151                 return SRPC_MSG_RMSN_REQST;
 152
 153         case SRPC_SERVICE_BATCH:
 154                 return SRPC_MSG_BATCH_REQST;
 155
 156         case SRPC_SERVICE_TEST:
 157                 return SRPC_MSG_TEST_REQST;
 158
 159         case SRPC_SERVICE_QUERY_STAT:
 160                 return SRPC_MSG_STAT_REQST;
 161
 162         case SRPC_SERVICE_BRW:
 163                 return SRPC_MSG_BRW_REQST;
 164
 165         case SRPC_SERVICE_PING:
 166                 return SRPC_MSG_PING_REQST;
 167
 168         case SRPC_SERVICE_JOIN:
 169                 return SRPC_MSG_JOIN_REQST;
 170         }
 171 }
 172
 173 static inline srpc_msg_type_t
 174 srpc_service2reply (int service)
 175 {
 176         return srpc_service2request(service) + 1;
 177 }
 178
 179 typedef enum {
 180         SRPC_BULK_REQ_RCVD   = 0, /* passive bulk request(PUT sink/GET source) received */
 181         SRPC_BULK_PUT_SENT   = 1, /* active bulk PUT sent (source) */
 182         SRPC_BULK_GET_RPLD   = 2, /* active bulk GET replied (sink) */
 183         SRPC_REPLY_RCVD      = 3, /* incoming reply received */
 184         SRPC_REPLY_SENT      = 4, /* outgoing reply sent */
 185         SRPC_REQUEST_RCVD    = 5, /* incoming request received */
 186         SRPC_REQUEST_SENT    = 6, /* outgoing request sent */
 187 } srpc_event_type_t;
 188
 189 /* RPC event */
 190 typedef struct {
 191         srpc_event_type_t ev_type;   /* what's up */
 192         lnet_event_kind_t ev_lnet;   /* LNet event type */
 193         int               ev_fired;  /* LNet event fired? */
 194         int               ev_status; /* LNet event status */
 195         void             *ev_data;   /* owning server/client RPC */
 196 } srpc_event_t;
 197
 198 typedef struct {
 199         int              bk_len;  /* len of bulk data */
 200         lnet_handle_md_t bk_mdh;
 201         int              bk_sink; /* sink/source */
 202         int              bk_niov; /* # iov in bk_iovs */
 203 #ifdef __KERNEL__
 204         lnet_kiov_t      bk_iovs[0];
 205 #else
 206         cfs_page_t     **bk_pages;
 207         lnet_md_iovec_t  bk_iovs[0];
 208 #endif
 209 } srpc_bulk_t; /* bulk descriptor */
 210
 211 typedef struct srpc_peer {
 212         struct list_head stp_list;     /* chain on peer hash */
 213         struct list_head stp_rpcq;     /* q of non-control RPCs */
 214         struct list_head stp_ctl_rpcq; /* q of control RPCs */
 215         spinlock_t       stp_lock;     /* serialize */
 216         lnet_nid_t       stp_nid;
 217         int              stp_credits;  /* available credits */
 218 } srpc_peer_t;
 219
 220 /* message buffer descriptor */
 221 typedef struct {
 222         struct list_head     buf_list; /* chain on srpc_service::*_msgq */
 223         srpc_msg_t           buf_msg;
 224         lnet_handle_md_t     buf_mdh;
 225         lnet_nid_t           buf_self;
 226         lnet_process_id_t    buf_peer;
 227 } srpc_buffer_t;
 228
 229 /* server-side state of a RPC */
 230 typedef struct srpc_server_rpc {
 231         struct list_head     srpc_list;    /* chain on srpc_service::*_rpcq */
 232         struct srpc_service *srpc_service;
 233         swi_workitem_t       srpc_wi;
 234         srpc_event_t         srpc_ev;      /* bulk/reply event */
 235         lnet_nid_t           srpc_self;
 236         lnet_process_id_t    srpc_peer;
 237         srpc_msg_t           srpc_replymsg;
 238         lnet_handle_md_t     srpc_replymdh;
 239         srpc_buffer_t       *srpc_reqstbuf;
 240         srpc_bulk_t         *srpc_bulk;
 241
 242         int                  srpc_status;
 243         void               (*srpc_done)(struct srpc_server_rpc *);
 244 } srpc_server_rpc_t;
 245
 246 /* client-side state of a RPC */
 247 typedef struct srpc_client_rpc {
 248         struct list_head     crpc_list;   /* chain on user's lists */
 249         struct list_head     crpc_privl;  /* chain on srpc_peer_t::*rpcq */
 250         spinlock_t           crpc_lock;   /* serialize */
 251         int                  crpc_service;
 252         atomic_t             crpc_refcount;
 253         int                  crpc_timeout; /* # seconds to wait for reply */
 254         stt_timer_t          crpc_timer;
 255         swi_workitem_t       crpc_wi;
 256         lnet_process_id_t    crpc_dest;
 257         srpc_peer_t         *crpc_peer;
 258
 259         void               (*crpc_done)(struct srpc_client_rpc *);
 260         void               (*crpc_fini)(struct srpc_client_rpc *);
 261         int                  crpc_status;    /* completion status */
 262         void                *crpc_priv;      /* caller data */
 263
 264         /* state flags */
 265         unsigned int         crpc_aborted:1; /* being given up */
 266         unsigned int         crpc_closed:1;  /* completed */
 267
 268         /* RPC events */
 269         srpc_event_t         crpc_bulkev;    /* bulk event */
 270         srpc_event_t         crpc_reqstev;   /* request event */
 271         srpc_event_t         crpc_replyev;   /* reply event */
 272
 273         /* bulk, request(reqst), and reply exchanged on wire */
 274         srpc_msg_t           crpc_reqstmsg;
 275         srpc_msg_t           crpc_replymsg;
 276         lnet_handle_md_t     crpc_reqstmdh;
 277         lnet_handle_md_t     crpc_replymdh;
 278         srpc_bulk_t          crpc_bulk;
 279 } srpc_client_rpc_t;
 280
 281 #define srpc_client_rpc_size(rpc)                                       \
 282 offsetof(srpc_client_rpc_t, crpc_bulk.bk_iovs[(rpc)->crpc_bulk.bk_niov])
 283
 284 #define srpc_client_rpc_addref(rpc)                                     \
 285 do {                                                                    \
 286         CDEBUG(D_NET, "RPC[%p] -> %s (%d)++\n",                         \
 287                (rpc), libcfs_id2str((rpc)->crpc_dest),                  \
 288                atomic_read(&(rpc)->crpc_refcount));                     \
 289         LASSERT(atomic_read(&(rpc)->crpc_refcount) > 0);                \
 290         atomic_inc(&(rpc)->crpc_refcount);                              \
 291 } while (0)
 292
 293 #define srpc_client_rpc_decref(rpc)                                     \
 294 do {                                                                    \
 295         CDEBUG(D_NET, "RPC[%p] -> %s (%d)--\n",                         \
 296                (rpc), libcfs_id2str((rpc)->crpc_dest),                  \
 297                atomic_read(&(rpc)->crpc_refcount));                     \
 298         LASSERT(atomic_read(&(rpc)->crpc_refcount) > 0);                \
 299         if (atomic_dec_and_test(&(rpc)->crpc_refcount))                 \
 300                 srpc_destroy_client_rpc(rpc);                           \
 301 } while (0)
 302
 303 #define srpc_event_pending(rpc)   ((rpc)->crpc_bulkev.ev_fired == 0 ||  \
 304                                    (rpc)->crpc_reqstev.ev_fired == 0 || \
 305                                    (rpc)->crpc_replyev.ev_fired == 0)
 306
 307 typedef struct srpc_service {
 308         int                sv_id;            /* service id */
 309         const char        *sv_name;          /* human readable name */
 310         int                sv_nprune;        /* # posted RPC to be pruned */
 311         int                sv_concur;        /* max # concurrent RPCs */
 312
 313         spinlock_t         sv_lock;
 314         int                sv_shuttingdown;
 315         srpc_event_t       sv_ev;            /* LNet event */
 316         int                sv_nposted_msg;   /* # posted message buffers */
 317         struct list_head   sv_free_rpcq;     /* free RPC descriptors */
 318         struct list_head   sv_active_rpcq;   /* in-flight RPCs */
 319         struct list_head   sv_posted_msgq;   /* posted message buffers */
 320         struct list_head   sv_blocked_msgq;  /* blocked for RPC descriptor */
 321
 322         /* Service callbacks:
 323          * - sv_handler: process incoming RPC request
 324          * - sv_bulk_ready: notify bulk data
 325          */
 326         int                (*sv_handler) (srpc_server_rpc_t *);
 327         int                (*sv_bulk_ready) (srpc_server_rpc_t *, int);
 328 } srpc_service_t;
 329
 330 #define SFW_POST_BUFFERS         8
 331 #define SFW_SERVICE_CONCURRENCY  (SFW_POST_BUFFERS/2)
 332
 333 typedef struct {
 334         struct list_head  sn_list;    /* chain on fw_zombie_sessions */
 335         lst_sid_t         sn_id;      /* unique identifier */
 336         unsigned int      sn_timeout; /* # seconds' inactivity to expire */
 337         int               sn_timer_active;
 338         stt_timer_t       sn_timer;
 339         struct list_head  sn_batches; /* list of batches */
 340         char              sn_name[LST_NAME_SIZE];
 341         atomic_t          sn_brw_errors;
 342         atomic_t          sn_ping_errors;
 343 } sfw_session_t;
 344
 345 #define sfw_sid_equal(sid0, sid1)     ((sid0).ses_nid == (sid1).ses_nid && \
 346                                        (sid0).ses_stamp == (sid1).ses_stamp)
 347
 348 typedef struct {
 349         struct list_head  bat_list;      /* chain on sn_batches */
 350         lst_bid_t         bat_id;        /* batch id */
 351         int               bat_error;     /* error code of batch */
 352         sfw_session_t    *bat_session;   /* batch's session */
 353         atomic_t          bat_nactive;   /* # of active tests */
 354         struct list_head  bat_tests;     /* test instances */
 355 } sfw_batch_t;
 356
 357 typedef struct {
 358         int  (*tso_init)(struct sfw_test_instance *tsi); /* intialize test client */
 359         void (*tso_fini)(struct sfw_test_instance *tsi); /* finalize test client */
 360         int  (*tso_prep_rpc)(struct sfw_test_unit *tsu,
 361                              lnet_process_id_t dest,
 362                              srpc_client_rpc_t **rpc);   /* prep a tests rpc */
 363         void (*tso_done_rpc)(struct sfw_test_unit *tsu,
 364                              srpc_client_rpc_t *rpc);    /* done a test rpc */
 365 } sfw_test_client_ops_t;
 366
 367 typedef struct sfw_test_instance {
 368         struct list_head        tsi_list;         /* chain on batch */
 369         int                     tsi_service;      /* test type */
 370         sfw_batch_t            *tsi_batch;        /* batch */
 371         sfw_test_client_ops_t  *tsi_ops;          /* test client operations */
 372
 373         /* public parameter for all test units */
 374         int                     tsi_is_client:1;     /* is test client */
 375         int                     tsi_stoptsu_onerr:1; /* stop tsu on error */
 376         int                     tsi_concur;          /* concurrency */
 377         int                     tsi_loop;            /* loop count */
 378
 379         /* status of test instance */
 380         spinlock_t              tsi_lock;         /* serialize */
 381         int                     tsi_stopping:1;   /* test is stopping */
 382         atomic_t                tsi_nactive;      /* # of active test 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                 test_bulk_req_t bulk;             /* bulk parameter */
 389                 test_ping_req_t ping;             /* ping parameter */
 390         } tsi_u;
 391 } sfw_test_instance_t;
 392
 393 /* XXX: trailing (CFS_PAGE_SIZE % sizeof(lnet_process_id_t)) bytes at
 394  * the end of pages are not used */
 395 #define SFW_MAX_CONCUR     LST_MAX_CONCUR
 396 #define SFW_ID_PER_PAGE    (CFS_PAGE_SIZE / sizeof(lnet_process_id_t))
 397 #define SFW_MAX_NDESTS     (LNET_MAX_IOV * SFW_ID_PER_PAGE)
 398 #define sfw_id_pages(n)    (((n) + SFW_ID_PER_PAGE - 1) / SFW_ID_PER_PAGE)
 399
 400 typedef struct sfw_test_unit {
 401         struct list_head        tsu_list;         /* chain on lst_test_instance */
 402         lnet_process_id_t       tsu_dest;         /* id of dest node */
 403         int                     tsu_loop;         /* loop count of the test */
 404         sfw_test_instance_t    *tsu_instance;     /* pointer to test instance */
 405         void                   *tsu_private;      /* private data */
 406         swi_workitem_t          tsu_worker;       /* workitem of the test unit */
 407 } sfw_test_unit_t;
 408
 409 typedef struct {
 410         struct list_head        tsc_list;         /* chain on fw_tests */
 411         srpc_service_t         *tsc_srv_service;  /* test service */
 412         sfw_test_client_ops_t  *tsc_cli_ops;      /* ops of test client */
 413 } sfw_test_case_t;
 414
 415
 416 srpc_client_rpc_t *
 417 sfw_create_rpc(lnet_process_id_t peer, int service, int nbulkiov, int bulklen,
 418                void (*done) (srpc_client_rpc_t *), void *priv);
 419 int sfw_create_test_rpc(sfw_test_unit_t *tsu, lnet_process_id_t peer,
 420                         int nblk, int blklen, srpc_client_rpc_t **rpc);
 421 void sfw_abort_rpc(srpc_client_rpc_t *rpc);
 422 void sfw_post_rpc(srpc_client_rpc_t *rpc);
 423 void sfw_client_rpc_done(srpc_client_rpc_t *rpc);
 424 void sfw_unpack_message(srpc_msg_t *msg);
 425 void sfw_free_pages(srpc_server_rpc_t *rpc);
 426 void sfw_add_bulk_page(srpc_bulk_t *bk, cfs_page_t *pg, int i);
 427 int sfw_alloc_pages(srpc_server_rpc_t *rpc, int npages, int sink);
 428
 429 srpc_client_rpc_t *
 430 srpc_create_client_rpc(lnet_process_id_t peer, int service,
 431                        int nbulkiov, int bulklen,
 432                        void (*rpc_done)(srpc_client_rpc_t *),
 433                        void (*rpc_fini)(srpc_client_rpc_t *), void *priv);
 434 void srpc_post_rpc(srpc_client_rpc_t *rpc);
 435 void srpc_abort_rpc(srpc_client_rpc_t *rpc, int why);
 436 void srpc_free_bulk(srpc_bulk_t *bk);
 437 srpc_bulk_t *srpc_alloc_bulk(int npages, int sink);
 438 int srpc_send_rpc(swi_workitem_t *wi);
 439 int srpc_send_reply(srpc_server_rpc_t *rpc);
 440 int srpc_add_service(srpc_service_t *sv);
 441 int srpc_remove_service(srpc_service_t *sv);
 442 void srpc_shutdown_service(srpc_service_t *sv);
 443 int srpc_finish_service(srpc_service_t *sv);
 444 int srpc_service_add_buffers(srpc_service_t *sv, int nbuffer);
 445 void srpc_service_remove_buffers(srpc_service_t *sv, int nbuffer);
 446 void srpc_get_counters(srpc_counters_t *cnt);
 447 void srpc_set_counters(const srpc_counters_t *cnt);
 448
 449 void swi_kill_workitem(swi_workitem_t *wi);
 450 void swi_schedule_workitem(swi_workitem_t *wi);
 451 void swi_schedule_serial_workitem(swi_workitem_t *wi);
 452 int swi_startup(void);
 453 int sfw_startup(void);
 454 int srpc_startup(void);
 455 void swi_shutdown(void);
 456 void sfw_shutdown(void);
 457 void srpc_shutdown(void);
 458
 459 static inline void
 460 srpc_destroy_client_rpc (srpc_client_rpc_t *rpc)
 461 {
 462         LASSERT (rpc != NULL);
 463         LASSERT (!srpc_event_pending(rpc));
 464         LASSERT (list_empty(&rpc->crpc_privl));
 465         LASSERT (atomic_read(&rpc->crpc_refcount) == 0);
 466 #ifndef __KERNEL__
 467         LASSERT (rpc->crpc_bulk.bk_pages == NULL);
 468 #endif
 469
 470         if (rpc->crpc_fini == NULL) {
 471                 LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc));
 472         } else {
 473                 (*rpc->crpc_fini) (rpc);
 474         }
 475
 476         return;
 477 }
 478
 479 static inline void
 480 srpc_init_client_rpc (srpc_client_rpc_t *rpc, lnet_process_id_t peer,
 481                       int service, int nbulkiov, int bulklen,
 482                       void (*rpc_done)(srpc_client_rpc_t *),
 483                       void (*rpc_fini)(srpc_client_rpc_t *), void *priv)
 484 {
 485         LASSERT (nbulkiov <= LNET_MAX_IOV);
 486
 487         memset(rpc, 0, offsetof(srpc_client_rpc_t,
 488                                 crpc_bulk.bk_iovs[nbulkiov]));
 489
 490         CFS_INIT_LIST_HEAD(&rpc->crpc_list);
 491         CFS_INIT_LIST_HEAD(&rpc->crpc_privl);
 492         swi_init_workitem(&rpc->crpc_wi, rpc, srpc_send_rpc);
 493         spin_lock_init(&rpc->crpc_lock);
 494         atomic_set(&rpc->crpc_refcount, 1); /* 1 ref for caller */
 495
 496         rpc->crpc_dest         = peer;
 497         rpc->crpc_priv         = priv;
 498         rpc->crpc_service      = service;
 499         rpc->crpc_bulk.bk_len  = bulklen;
 500         rpc->crpc_bulk.bk_niov = nbulkiov;
 501         rpc->crpc_done         = rpc_done;
 502         rpc->crpc_fini         = rpc_fini;
 503         rpc->crpc_reqstmdh     =
 504         rpc->crpc_replymdh     =
 505         rpc->crpc_bulk.bk_mdh  = LNET_INVALID_HANDLE;
 506
 507         /* no event is expected at this point */
 508         rpc->crpc_bulkev.ev_fired  =
 509         rpc->crpc_reqstev.ev_fired =
 510         rpc->crpc_replyev.ev_fired = 1;
 511
 512         rpc->crpc_reqstmsg.msg_magic   = SRPC_MSG_MAGIC;
 513         rpc->crpc_reqstmsg.msg_version = SRPC_MSG_VERSION;
 514         rpc->crpc_reqstmsg.msg_type    = srpc_service2request(service);
 515         return;
 516 }
 517
 518 static inline const char *
 519 swi_state2str (int state)
 520 {
 521 #define STATE2STR(x) case x: return #x
 522         switch(state) {
 523                 default:
 524                         LBUG();
 525                 STATE2STR(SWI_STATE_NEWBORN);
 526                 STATE2STR(SWI_STATE_REPLY_SUBMITTED);
 527                 STATE2STR(SWI_STATE_REPLY_SENT);
 528                 STATE2STR(SWI_STATE_REQUEST_SUBMITTED);
 529                 STATE2STR(SWI_STATE_REQUEST_SENT);
 530                 STATE2STR(SWI_STATE_REPLY_RECEIVED);
 531                 STATE2STR(SWI_STATE_BULK_STARTED);
 532                 STATE2STR(SWI_STATE_DONE);
 533         }
 534 #undef STATE2STR
 535 }
 536
 537 #define UNUSED(x)       ( (void)(x) )
 538
 539 #ifndef __KERNEL__
 540
 541 int stt_poll_interval(void);
 542 int sfw_session_removed(void);
 543
 544 int stt_check_events(void);
 545 int swi_check_events(void);
 546 int srpc_check_event(int timeout);
 547
 548 int lnet_selftest_init(void);
 549 void lnet_selftest_fini(void);
 550 int selftest_wait_events(void);
 551
 552 #else
 553
 554 #define selftest_wait_events()    cfs_pause(cfs_time_seconds(1))
 555
 556 #endif
 557
 558 #define lst_wait_until(cond, lock, fmt, a...)                           \
 559 do {                                                                    \
 560         int __I = 2;                                                    \
 561         while (!(cond)) {                                               \
 562                 __I++;                                                  \
 563                 CDEBUG(((__I & (-__I)) == __I) ? D_WARNING :            \
 564                                                  D_NET,     /* 2**n? */ \
 565                        fmt, ## a);                                      \
 566                 spin_unlock(&(lock));                                   \
 567                                                                         \
 568                 selftest_wait_events();                                 \
 569                                                                         \
 570                 spin_lock(&(lock));                                     \
 571         }                                                               \
 572 } while (0)
 573
 574 static inline void
 575 srpc_wait_service_shutdown (srpc_service_t *sv)
 576 {
 577         int i = 2;
 578
 579         spin_lock(&sv->sv_lock);
 580         LASSERT (sv->sv_shuttingdown);
 581         spin_unlock(&sv->sv_lock);
 582
 583         while (srpc_finish_service(sv) == 0) {
 584                 i++;
 585                 CDEBUG (((i & -i) == i) ? D_WARNING : D_NET,
 586                         "Waiting for %s service to shutdown...\n",
 587                         sv->sv_name);
 588                 selftest_wait_events();
 589         }
 590 }
 591
 592 #endif /* __SELFTEST_SELFTEST_H__ */