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 #include <libcfs/libcfs.h>
  39 #include <lnet/lnet.h>
  40 #include <lnet/lib-lnet.h>
  41 #include <lnet/lib-types.h>
  42 #include <lnet/lnetst.h>
  43
  44 #include "rpc.h"
  45 #include "timer.h"
  46
  47 #ifndef MADE_WITHOUT_COMPROMISE
  48 #define MADE_WITHOUT_COMPROMISE
  49 #endif
  50
  51
  52 #define SWI_STATE_NEWBORN                  0
  53 #define SWI_STATE_REPLY_SUBMITTED          1
  54 #define SWI_STATE_REPLY_SENT               2
  55 #define SWI_STATE_REQUEST_SUBMITTED        3
  56 #define SWI_STATE_REQUEST_SENT             4
  57 #define SWI_STATE_REPLY_RECEIVED           5
  58 #define SWI_STATE_BULK_STARTED             6
  59 #define SWI_STATE_DONE                     10
  60
  61 /* forward refs */
  62 struct swi_workitem;
  63 struct srpc_service;
  64 struct sfw_test_unit;
  65 struct sfw_test_instance;
  66
  67 /*
  68  * A workitems is deferred work with these semantics:
  69  * - a workitem always runs in thread context.
  70  * - a workitem can be concurrent with other workitems but is strictly
  71  *   serialized with respect to itself.
  72  * - no CPU affinity, a workitem does not necessarily run on the same CPU
  73  *   that schedules it. However, this might change in the future.
  74  * - if a workitem is scheduled again before it has a chance to run, it
  75  *   runs only once.
  76  * - if a workitem is scheduled while it runs, it runs again after it
  77  *   completes; this ensures that events occurring while other events are
  78  *   being processed receive due attention. This behavior also allows a
  79  *   workitem to reschedule itself.
  80  *
  81  * Usage notes:
  82  * - a workitem can sleep but it should be aware of how that sleep might
  83  *   affect others.
  84  * - a workitem runs inside a kernel thread so there's no user space to access.
  85  * - do not use a workitem if the scheduling latency can't be tolerated.
  86  *
  87  * When wi_action returns non-zero, it means the workitem has either been
  88  * freed or reused and workitem scheduler won't touch it any more.
  89  */
  90 typedef int (*swi_action_t) (struct swi_workitem *);
  91 typedef struct swi_workitem {
  92         struct list_head wi_list;        /* chain on runq */
  93         int              wi_state;
  94         swi_action_t     wi_action;
  95         void            *wi_data;
  96         unsigned int     wi_running:1;
  97         unsigned int     wi_scheduled:1;
  98 } swi_workitem_t;
  99
 100 static inline void
 101 swi_init_workitem (swi_workitem_t *wi, void *data, swi_action_t action)
 102 {
 103         CFS_INIT_LIST_HEAD(&wi->wi_list);
 104
 105         wi->wi_running   = 0;
 106         wi->wi_scheduled = 0;
 107         wi->wi_data      = data;
 108         wi->wi_action    = action;
 109         wi->wi_state     = SWI_STATE_NEWBORN;
 110 }
 111
 112 #define SWI_RESCHED    128         /* # workitem scheduler loops before reschedule */
 113
 114 /* services below SRPC_FRAMEWORK_SERVICE_MAX_ID are framework
 115  * services, e.g. create/modify session.
 116  */
 117 #define SRPC_SERVICE_DEBUG              0
 118 #define SRPC_SERVICE_MAKE_SESSION       1
 119 #define SRPC_SERVICE_REMOVE_SESSION     2
 120 #define SRPC_SERVICE_BATCH              3
 121 #define SRPC_SERVICE_TEST               4
 122 #define SRPC_SERVICE_QUERY_STAT         5
 123 #define SRPC_SERVICE_JOIN               6
 124 #define SRPC_FRAMEWORK_SERVICE_MAX_ID   10
 125 /* other services start from SRPC_FRAMEWORK_SERVICE_MAX_ID+1 */
 126 #define SRPC_SERVICE_BRW                11
 127 #define SRPC_SERVICE_PING               12
 128 #define SRPC_SERVICE_MAX_ID             12
 129
 130 #define SRPC_REQUEST_PORTAL             50
 131 /* a lazy portal for framework RPC requests */
 132 #define SRPC_FRAMEWORK_REQUEST_PORTAL   51
 133 /* all reply/bulk RDMAs go to this portal */
 134 #define SRPC_RDMA_PORTAL                52
 135
 136 static inline srpc_msg_type_t
 137 srpc_service2request (int service)
 138 {
 139         switch (service) {
 140         default:
 141                 LBUG ();
 142         case SRPC_SERVICE_DEBUG:
 143                 return SRPC_MSG_DEBUG_REQST;
 144
 145         case SRPC_SERVICE_MAKE_SESSION:
 146                 return SRPC_MSG_MKSN_REQST;
 147
 148         case SRPC_SERVICE_REMOVE_SESSION:
 149                 return SRPC_MSG_RMSN_REQST;
 150
 151         case SRPC_SERVICE_BATCH:
 152                 return SRPC_MSG_BATCH_REQST;
 153
 154         case SRPC_SERVICE_TEST:
 155                 return SRPC_MSG_TEST_REQST;
 156
 157         case SRPC_SERVICE_QUERY_STAT:
 158                 return SRPC_MSG_STAT_REQST;
 159
 160         case SRPC_SERVICE_BRW:
 161                 return SRPC_MSG_BRW_REQST;
 162
 163         case SRPC_SERVICE_PING:
 164                 return SRPC_MSG_PING_REQST;
 165
 166         case SRPC_SERVICE_JOIN:
 167                 return SRPC_MSG_JOIN_REQST;
 168         }
 169 }
 170
 171 static inline srpc_msg_type_t
 172 srpc_service2reply (int service)
 173 {
 174         return srpc_service2request(service) + 1;
 175 }
 176
 177 typedef enum {
 178         SRPC_BULK_REQ_RCVD   = 0, /* passive bulk request(PUT sink/GET source) received */
 179         SRPC_BULK_PUT_SENT   = 1, /* active bulk PUT sent (source) */
 180         SRPC_BULK_GET_RPLD   = 2, /* active bulk GET replied (sink) */
 181         SRPC_REPLY_RCVD      = 3, /* incoming reply received */
 182         SRPC_REPLY_SENT      = 4, /* outgoing reply sent */
 183         SRPC_REQUEST_RCVD    = 5, /* incoming request received */
 184         SRPC_REQUEST_SENT    = 6, /* outgoing request sent */
 185 } srpc_event_type_t;
 186
 187 /* RPC event */
 188 typedef struct {
 189         srpc_event_type_t ev_type;   /* what's up */
 190         lnet_event_kind_t ev_lnet;   /* LNet event type */
 191         int               ev_fired;  /* LNet event fired? */
 192         int               ev_status; /* LNet event status */
 193         void             *ev_data;   /* owning server/client RPC */
 194 } srpc_event_t;
 195
 196 typedef struct {
 197         int              bk_len;  /* len of bulk data */
 198         lnet_handle_md_t bk_mdh;
 199         int              bk_sink; /* sink/source */
 200         int              bk_niov; /* # iov in bk_iovs */
 201 #ifdef __KERNEL__
 202         lnet_kiov_t      bk_iovs[0];
 203 #else
 204         cfs_page_t     **bk_pages;
 205         lnet_md_iovec_t  bk_iovs[0];
 206 #endif
 207 } srpc_bulk_t; /* bulk descriptor */
 208
 209 typedef struct srpc_peer {
 210         struct list_head stp_list;     /* chain on peer hash */
 211         struct list_head stp_rpcq;     /* q of non-control RPCs */
 212         struct list_head stp_ctl_rpcq; /* q of control RPCs */
 213         spinlock_t       stp_lock;     /* serialize */
 214         lnet_nid_t       stp_nid;
 215         int              stp_credits;  /* available credits */
 216 } srpc_peer_t;
 217
 218 /* message buffer descriptor */
 219 typedef struct {
 220         struct list_head     buf_list; /* chain on srpc_service::*_msgq */
 221         srpc_msg_t           buf_msg;
 222         lnet_handle_md_t     buf_mdh;
 223         lnet_nid_t           buf_self;
 224         lnet_process_id_t    buf_peer;
 225 } srpc_buffer_t;
 226
 227 /* server-side state of a RPC */
 228 typedef struct srpc_server_rpc {
 229         struct list_head     srpc_list;    /* chain on srpc_service::*_rpcq */
 230         struct srpc_service *srpc_service;
 231         swi_workitem_t       srpc_wi;
 232         srpc_event_t         srpc_ev;      /* bulk/reply event */
 233         lnet_nid_t           srpc_self;
 234         lnet_process_id_t    srpc_peer;
 235         srpc_msg_t           srpc_replymsg;
 236         lnet_handle_md_t     srpc_replymdh;
 237         srpc_buffer_t       *srpc_reqstbuf;
 238         srpc_bulk_t         *srpc_bulk;
 239
 240         int                  srpc_status;
 241         void               (*srpc_done)(struct srpc_server_rpc *);
 242 } srpc_server_rpc_t;
 243
 244 /* client-side state of a RPC */
 245 typedef struct srpc_client_rpc {
 246         struct list_head     crpc_list;   /* chain on user's lists */
 247         struct list_head     crpc_privl;  /* chain on srpc_peer_t::*rpcq */
 248         spinlock_t           crpc_lock;   /* serialize */
 249         int                  crpc_service;
 250         atomic_t             crpc_refcount;
 251         int                  crpc_timeout; /* # seconds to wait for reply */
 252         stt_timer_t          crpc_timer;
 253         swi_workitem_t       crpc_wi;
 254         lnet_process_id_t    crpc_dest;
 255         srpc_peer_t         *crpc_peer;
 256
 257         void               (*crpc_done)(struct srpc_client_rpc *);
 258         void               (*crpc_fini)(struct srpc_client_rpc *);
 259         int                  crpc_status;    /* completion status */
 260         void                *crpc_priv;      /* caller data */
 261
 262         /* state flags */
 263         unsigned int         crpc_aborted:1; /* being given up */
 264         unsigned int         crpc_closed:1;  /* completed */
 265
 266         /* RPC events */
 267         srpc_event_t         crpc_bulkev;    /* bulk event */
 268         srpc_event_t         crpc_reqstev;   /* request event */
 269         srpc_event_t         crpc_replyev;   /* reply event */
 270
 271         /* bulk, request(reqst), and reply exchanged on wire */
 272         srpc_msg_t           crpc_reqstmsg;
 273         srpc_msg_t           crpc_replymsg;
 274         lnet_handle_md_t     crpc_reqstmdh;
 275         lnet_handle_md_t     crpc_replymdh;
 276         srpc_bulk_t          crpc_bulk;
 277 } srpc_client_rpc_t;
 278
 279 #define srpc_client_rpc_size(rpc)                                       \
 280 offsetof(srpc_client_rpc_t, crpc_bulk.bk_iovs[(rpc)->crpc_bulk.bk_niov])
 281
 282 #define srpc_client_rpc_addref(rpc)                                     \
 283 do {                                                                    \
 284         CDEBUG(D_NET, "RPC[%p] -> %s (%d)++\n",                         \
 285                (rpc), libcfs_id2str((rpc)->crpc_dest),                  \
 286                atomic_read(&(rpc)->crpc_refcount));                     \
 287         LASSERT(atomic_read(&(rpc)->crpc_refcount) > 0);                \
 288         atomic_inc(&(rpc)->crpc_refcount);                              \
 289 } while (0)
 290
 291 #define srpc_client_rpc_decref(rpc)                                     \
 292 do {                                                                    \
 293         CDEBUG(D_NET, "RPC[%p] -> %s (%d)--\n",                         \
 294                (rpc), libcfs_id2str((rpc)->crpc_dest),                  \
 295                atomic_read(&(rpc)->crpc_refcount));                     \
 296         LASSERT(atomic_read(&(rpc)->crpc_refcount) > 0);                \
 297         if (atomic_dec_and_test(&(rpc)->crpc_refcount))                 \
 298                 srpc_destroy_client_rpc(rpc);                           \
 299 } while (0)
 300
 301 #define srpc_event_pending(rpc)   ((rpc)->crpc_bulkev.ev_fired == 0 ||  \
 302                                    (rpc)->crpc_reqstev.ev_fired == 0 || \
 303                                    (rpc)->crpc_replyev.ev_fired == 0)
 304
 305 typedef struct srpc_service {
 306         int                sv_id;            /* service id */
 307         const char        *sv_name;          /* human readable name */
 308         int                sv_nprune;        /* # posted RPC to be pruned */
 309         int                sv_concur;        /* max # concurrent RPCs */
 310
 311         spinlock_t         sv_lock;
 312         int                sv_shuttingdown;
 313         srpc_event_t       sv_ev;            /* LNet event */
 314         int                sv_nposted_msg;   /* # posted message buffers */
 315         struct list_head   sv_free_rpcq;     /* free RPC descriptors */
 316         struct list_head   sv_active_rpcq;   /* in-flight RPCs */
 317         struct list_head   sv_posted_msgq;   /* posted message buffers */
 318         struct list_head   sv_blocked_msgq;  /* blocked for RPC descriptor */
 319
 320         /* Service callbacks:
 321          * - sv_handler: process incoming RPC request
 322          * - sv_bulk_ready: notify bulk data
 323          */
 324         int                (*sv_handler) (srpc_server_rpc_t *);
 325         int                (*sv_bulk_ready) (srpc_server_rpc_t *, int);
 326 } srpc_service_t;
 327
 328 #define SFW_POST_BUFFERS         8
 329 #define SFW_SERVICE_CONCURRENCY  (SFW_POST_BUFFERS/2)
 330
 331 typedef struct {
 332         struct list_head  sn_list;    /* chain on fw_zombie_sessions */
 333         lst_sid_t         sn_id;      /* unique identifier */
 334         unsigned int      sn_timeout; /* # seconds' inactivity to expire */
 335         int               sn_timer_active;
 336         stt_timer_t       sn_timer;
 337         struct list_head  sn_batches; /* list of batches */
 338         char              sn_name[LST_NAME_SIZE];
 339         atomic_t          sn_brw_errors;
 340         atomic_t          sn_ping_errors;
 341 } sfw_session_t;
 342
 343 #define sfw_sid_equal(sid0, sid1)     ((sid0).ses_nid == (sid1).ses_nid && \
 344                                        (sid0).ses_stamp == (sid1).ses_stamp)
 345
 346 typedef struct {
 347         struct list_head  bat_list;      /* chain on sn_batches */
 348         lst_bid_t         bat_id;        /* batch id */
 349         int               bat_error;     /* error code of batch */
 350         sfw_session_t    *bat_session;   /* batch's session */
 351         atomic_t          bat_nactive;   /* # of active tests */
 352         struct list_head  bat_tests;     /* test instances */
 353 } sfw_batch_t;
 354
 355 typedef struct {
 356         int  (*tso_init)(struct sfw_test_instance *tsi); /* intialize test client */
 357         void (*tso_fini)(struct sfw_test_instance *tsi); /* finalize test client */
 358         int  (*tso_prep_rpc)(struct sfw_test_unit *tsu,
 359                              lnet_process_id_t dest,
 360                              srpc_client_rpc_t **rpc);   /* prep a tests rpc */
 361         void (*tso_done_rpc)(struct sfw_test_unit *tsu,
 362                              srpc_client_rpc_t *rpc);    /* done a test rpc */
 363 } sfw_test_client_ops_t;
 364
 365 typedef struct sfw_test_instance {
 366         struct list_head        tsi_list;         /* chain on batch */
 367         int                     tsi_service;      /* test type */
 368         sfw_batch_t            *tsi_batch;        /* batch */
 369         sfw_test_client_ops_t  *tsi_ops;          /* test client operations */
 370
 371         /* public parameter for all test units */
 372         int                     tsi_is_client:1;     /* is test client */
 373         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         int                     tsi_stopping:1;   /* test is stopping */
 380         atomic_t                tsi_nactive;      /* # of active test unit */
 381         struct list_head        tsi_units;        /* test units */
 382         struct list_head        tsi_free_rpcs;    /* free rpcs */
 383         struct list_head        tsi_active_rpcs;  /* active rpcs */
 384
 385         union {
 386                 test_bulk_req_t bulk;             /* bulk parameter */
 387                 test_ping_req_t ping;             /* ping parameter */
 388         } tsi_u;
 389 } sfw_test_instance_t;
 390
 391 /* XXX: trailing (CFS_PAGE_SIZE % sizeof(lnet_process_id_t)) bytes at
 392  * the end of pages are not used */
 393 #define SFW_MAX_CONCUR     LST_MAX_CONCUR
 394 #define SFW_ID_PER_PAGE    (CFS_PAGE_SIZE / sizeof(lnet_process_id_t))
 395 #define SFW_MAX_NDESTS     (LNET_MAX_IOV * SFW_ID_PER_PAGE)
 396 #define sfw_id_pages(n)    (((n) + SFW_ID_PER_PAGE - 1) / SFW_ID_PER_PAGE)
 397
 398 typedef struct sfw_test_unit {
 399         struct list_head        tsu_list;         /* chain on lst_test_instance */
 400         lnet_process_id_t       tsu_dest;         /* id of dest node */
 401         int                     tsu_loop;         /* loop count of the test */
 402         sfw_test_instance_t    *tsu_instance;     /* pointer to test instance */
 403         void                   *tsu_private;      /* private data */
 404         swi_workitem_t          tsu_worker;       /* workitem of the test unit */
 405 } sfw_test_unit_t;
 406
 407 typedef struct {
 408         struct list_head        tsc_list;         /* chain on fw_tests */
 409         srpc_service_t         *tsc_srv_service;  /* test service */
 410         sfw_test_client_ops_t  *tsc_cli_ops;      /* ops of test client */
 411 } sfw_test_case_t;
 412
 413
 414 srpc_client_rpc_t *
 415 sfw_create_rpc(lnet_process_id_t peer, int service, int nbulkiov, int bulklen,
 416                void (*done) (srpc_client_rpc_t *), void *priv);
 417 int sfw_create_test_rpc(sfw_test_unit_t *tsu, lnet_process_id_t peer,
 418                         int nblk, int blklen, srpc_client_rpc_t **rpc);
 419 void sfw_abort_rpc(srpc_client_rpc_t *rpc);
 420 void sfw_post_rpc(srpc_client_rpc_t *rpc);
 421 void sfw_client_rpc_done(srpc_client_rpc_t *rpc);
 422 void sfw_unpack_message(srpc_msg_t *msg);
 423 void sfw_free_pages(srpc_server_rpc_t *rpc);
 424 void sfw_add_bulk_page(srpc_bulk_t *bk, cfs_page_t *pg, int i);
 425 int sfw_alloc_pages(srpc_server_rpc_t *rpc, int npages, int sink);
 426
 427 srpc_client_rpc_t *
 428 srpc_create_client_rpc(lnet_process_id_t peer, int service,
 429                        int nbulkiov, int bulklen,
 430                        void (*rpc_done)(srpc_client_rpc_t *),
 431                        void (*rpc_fini)(srpc_client_rpc_t *), void *priv);
 432 void srpc_post_rpc(srpc_client_rpc_t *rpc);
 433 void srpc_abort_rpc(srpc_client_rpc_t *rpc, int why);
 434 void srpc_free_bulk(srpc_bulk_t *bk);
 435 srpc_bulk_t *srpc_alloc_bulk(int npages, int sink);
 436 int srpc_send_rpc(swi_workitem_t *wi);
 437 int srpc_send_reply(srpc_server_rpc_t *rpc);
 438 int srpc_add_service(srpc_service_t *sv);
 439 int srpc_remove_service(srpc_service_t *sv);
 440 void srpc_shutdown_service(srpc_service_t *sv);
 441 int srpc_finish_service(srpc_service_t *sv);
 442 int srpc_service_add_buffers(srpc_service_t *sv, int nbuffer);
 443 void srpc_service_remove_buffers(srpc_service_t *sv, int nbuffer);
 444 void srpc_get_counters(srpc_counters_t *cnt);
 445 void srpc_set_counters(const srpc_counters_t *cnt);
 446
 447 void swi_kill_workitem(swi_workitem_t *wi);
 448 void swi_schedule_workitem(swi_workitem_t *wi);
 449 void swi_schedule_serial_workitem(swi_workitem_t *wi);
 450 int swi_startup(void);
 451 int sfw_startup(void);
 452 int srpc_startup(void);
 453 void swi_shutdown(void);
 454 void sfw_shutdown(void);
 455 void srpc_shutdown(void);
 456
 457 static inline void
 458 srpc_destroy_client_rpc (srpc_client_rpc_t *rpc)
 459 {
 460         LASSERT (rpc != NULL);
 461         LASSERT (!srpc_event_pending(rpc));
 462         LASSERT (list_empty(&rpc->crpc_privl));
 463         LASSERT (atomic_read(&rpc->crpc_refcount) == 0);
 464 #ifndef __KERNEL__
 465         LASSERT (rpc->crpc_bulk.bk_pages == NULL);
 466 #endif
 467
 468         if (rpc->crpc_fini == NULL) {
 469                 LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc));
 470         } else {
 471                 (*rpc->crpc_fini) (rpc);
 472         }
 473
 474         return;
 475 }
 476
 477 static inline void
 478 srpc_init_client_rpc (srpc_client_rpc_t *rpc, lnet_process_id_t peer,
 479                       int service, int nbulkiov, int bulklen,
 480                       void (*rpc_done)(srpc_client_rpc_t *),
 481                       void (*rpc_fini)(srpc_client_rpc_t *), void *priv)
 482 {
 483         LASSERT (nbulkiov <= LNET_MAX_IOV);
 484
 485         memset(rpc, 0, offsetof(srpc_client_rpc_t,
 486                                 crpc_bulk.bk_iovs[nbulkiov]));
 487
 488         CFS_INIT_LIST_HEAD(&rpc->crpc_list);
 489         CFS_INIT_LIST_HEAD(&rpc->crpc_privl);
 490         swi_init_workitem(&rpc->crpc_wi, rpc, srpc_send_rpc);
 491         spin_lock_init(&rpc->crpc_lock);
 492         atomic_set(&rpc->crpc_refcount, 1); /* 1 ref for caller */
 493
 494         rpc->crpc_dest         = peer;
 495         rpc->crpc_priv         = priv;
 496         rpc->crpc_service      = service;
 497         rpc->crpc_bulk.bk_len  = bulklen;
 498         rpc->crpc_bulk.bk_niov = nbulkiov;
 499         rpc->crpc_done         = rpc_done;
 500         rpc->crpc_fini         = rpc_fini;
 501         rpc->crpc_reqstmdh     =
 502         rpc->crpc_replymdh     =
 503         rpc->crpc_bulk.bk_mdh  = LNET_INVALID_HANDLE;
 504
 505         /* no event is expected at this point */
 506         rpc->crpc_bulkev.ev_fired  =
 507         rpc->crpc_reqstev.ev_fired =
 508         rpc->crpc_replyev.ev_fired = 1;
 509
 510         rpc->crpc_reqstmsg.msg_magic   = SRPC_MSG_MAGIC;
 511         rpc->crpc_reqstmsg.msg_version = SRPC_MSG_VERSION;
 512         rpc->crpc_reqstmsg.msg_type    = srpc_service2request(service);
 513         return;
 514 }
 515
 516 static inline const char *
 517 swi_state2str (int state)
 518 {
 519 #define STATE2STR(x) case x: return #x
 520         switch(state) {
 521                 default:
 522                         LBUG();
 523                 STATE2STR(SWI_STATE_NEWBORN);
 524                 STATE2STR(SWI_STATE_REPLY_SUBMITTED);
 525                 STATE2STR(SWI_STATE_REPLY_SENT);
 526                 STATE2STR(SWI_STATE_REQUEST_SUBMITTED);
 527                 STATE2STR(SWI_STATE_REQUEST_SENT);
 528                 STATE2STR(SWI_STATE_REPLY_RECEIVED);
 529                 STATE2STR(SWI_STATE_BULK_STARTED);
 530                 STATE2STR(SWI_STATE_DONE);
 531         }
 532 #undef STATE2STR
 533 }
 534
 535 #define UNUSED(x)       ( (void)(x) )
 536
 537 #ifndef __KERNEL__
 538
 539 int stt_poll_interval(void);
 540 int sfw_session_removed(void);
 541
 542 int stt_check_events(void);
 543 int swi_check_events(void);
 544 int srpc_check_event(int timeout);
 545
 546 int lnet_selftest_init(void);
 547 void lnet_selftest_fini(void);
 548 int selftest_wait_events(void);
 549
 550 #else
 551
 552 #define selftest_wait_events()    cfs_pause(cfs_time_seconds(1))
 553
 554 #endif
 555
 556 #define lst_wait_until(cond, lock, fmt, a...)                           \
 557 do {                                                                    \
 558         int __I = 2;                                                    \
 559         while (!(cond)) {                                               \
 560                 __I++;                                                  \
 561                 CDEBUG(((__I & (-__I)) == __I) ? D_WARNING :            \
 562                                                  D_NET,     /* 2**n? */ \
 563                        fmt, ## a);                                      \
 564                 spin_unlock(&(lock));                                   \
 565                                                                         \
 566                 selftest_wait_events();                                 \
 567                                                                         \
 568                 spin_lock(&(lock));                                     \
 569         }                                                               \
 570 } while (0)
 571
 572 static inline void
 573 srpc_wait_service_shutdown (srpc_service_t *sv)
 574 {
 575         int i = 2;
 576
 577         spin_lock(&sv->sv_lock);
 578         LASSERT (sv->sv_shuttingdown);
 579         spin_unlock(&sv->sv_lock);
 580
 581         while (srpc_finish_service(sv) == 0) {
 582                 i++;
 583                 CDEBUG (((i & -i) == i) ? D_WARNING : D_NET,
 584                         "Waiting for %s service to shutdown...\n",
 585                         sv->sv_name);
 586                 selftest_wait_events();
 587         }
 588 }
 589
 590 #endif /* __SELFTEST_SELFTEST_H__ */