lnet/selftest/selftest.h

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  *
   4  * GPL HEADER START
   5  *
   6  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 only,
  10  * as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License version 2 for more details (a copy is included
  16  * in the LICENSE file that accompanied this code).
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * version 2 along with this program; If not, see
  20  * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
  21  * copy of GPLv2].
  22  *
  23  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  24  * CA 95054 USA or visit www.sun.com if you need additional information or
  25  * have any questions.
  26  *
  27  * GPL HEADER END
  28  */
  29 /*
  30  * Copyright  2008 Sun Microsystems, Inc. All rights reserved
  31  * Use is subject to license terms.
  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 #ifndef __KERNEL__
  47
  48 /* XXX workaround XXX */
  49 #ifdef HAVE_SYS_TYPES_H
  50 #include <sys/types.h>
  51 #endif
  52
  53 #endif
  54 #include <libcfs/libcfs.h>
  55 #include <lnet/lnet.h>
  56 #include <lnet/lib-lnet.h>
  57 #include <lnet/lib-types.h>
  58 #include <lnet/lnetst.h>
  59
  60 #include "rpc.h"
  61 #include "timer.h"
  62
  63 #ifndef MADE_WITHOUT_COMPROMISE
  64 #define MADE_WITHOUT_COMPROMISE
  65 #endif
  66
  67
  68 #define SWI_STATE_NEWBORN                  0
  69 #define SWI_STATE_REPLY_SUBMITTED          1
  70 #define SWI_STATE_REPLY_SENT               2
  71 #define SWI_STATE_REQUEST_SUBMITTED        3
  72 #define SWI_STATE_REQUEST_SENT             4
  73 #define SWI_STATE_REPLY_RECEIVED           5
  74 #define SWI_STATE_BULK_STARTED             6
  75 #define SWI_STATE_DONE                     10
  76
  77 /* forward refs */
  78 struct swi_workitem;
  79 struct srpc_service;
  80 struct sfw_test_unit;
  81 struct sfw_test_instance;
  82
  83 /*
  84  * A workitems is deferred work with these semantics:
  85  * - a workitem always runs in thread context.
  86  * - a workitem can be concurrent with other workitems but is strictly
  87  *   serialized with respect to itself.
  88  * - no CPU affinity, a workitem does not necessarily run on the same CPU
  89  *   that schedules it. However, this might change in the future.
  90  * - if a workitem is scheduled again before it has a chance to run, it
  91  *   runs only once.
  92  * - if a workitem is scheduled while it runs, it runs again after it
  93  *   completes; this ensures that events occurring while other events are
  94  *   being processed receive due attention. This behavior also allows a
  95  *   workitem to reschedule itself.
  96  *
  97  * Usage notes:
  98  * - a workitem can sleep but it should be aware of how that sleep might
  99  *   affect others.
 100  * - a workitem runs inside a kernel thread so there's no user space to access.
 101  * - do not use a workitem if the scheduling latency can't be tolerated.
 102  *
 103  * When wi_action returns non-zero, it means the workitem has either been
 104  * freed or reused and workitem scheduler won't touch it any more.
 105  */
 106 typedef int (*swi_action_t) (struct swi_workitem *);
 107 typedef struct swi_workitem {
 108         struct list_head wi_list;        /* chain on runq */
 109         int              wi_state;
 110         swi_action_t     wi_action;
 111         void            *wi_data;
 112         unsigned int     wi_running:1;
 113         unsigned int     wi_scheduled:1;
 114 } swi_workitem_t;
 115
 116 static inline void
 117 swi_init_workitem (swi_workitem_t *wi, void *data, swi_action_t action)
 118 {
 119         CFS_INIT_LIST_HEAD(&wi->wi_list);
 120
 121         wi->wi_running   = 0;
 122         wi->wi_scheduled = 0;
 123         wi->wi_data      = data;
 124         wi->wi_action    = action;
 125         wi->wi_state     = SWI_STATE_NEWBORN;
 126 }
 127
 128 #define SWI_RESCHED    128         /* # workitem scheduler loops before reschedule */
 129
 130 /* services below SRPC_FRAMEWORK_SERVICE_MAX_ID are framework
 131  * services, e.g. create/modify session.
 132  */
 133 #define SRPC_SERVICE_DEBUG              0
 134 #define SRPC_SERVICE_MAKE_SESSION       1
 135 #define SRPC_SERVICE_REMOVE_SESSION     2
 136 #define SRPC_SERVICE_BATCH              3
 137 #define SRPC_SERVICE_TEST               4
 138 #define SRPC_SERVICE_QUERY_STAT         5
 139 #define SRPC_SERVICE_JOIN               6
 140 #define SRPC_FRAMEWORK_SERVICE_MAX_ID   10
 141 /* other services start from SRPC_FRAMEWORK_SERVICE_MAX_ID+1 */
 142 #define SRPC_SERVICE_BRW                11
 143 #define SRPC_SERVICE_PING               12
 144 #define SRPC_SERVICE_MAX_ID             12
 145
 146 #define SRPC_REQUEST_PORTAL             50
 147 /* a lazy portal for framework RPC requests */
 148 #define SRPC_FRAMEWORK_REQUEST_PORTAL   51
 149 /* all reply/bulk RDMAs go to this portal */
 150 #define SRPC_RDMA_PORTAL                52
 151
 152 static inline srpc_msg_type_t
 153 srpc_service2request (int service)
 154 {
 155         switch (service) {
 156         default:
 157                 LBUG ();
 158         case SRPC_SERVICE_DEBUG:
 159                 return SRPC_MSG_DEBUG_REQST;
 160
 161         case SRPC_SERVICE_MAKE_SESSION:
 162                 return SRPC_MSG_MKSN_REQST;
 163
 164         case SRPC_SERVICE_REMOVE_SESSION:
 165                 return SRPC_MSG_RMSN_REQST;
 166
 167         case SRPC_SERVICE_BATCH:
 168                 return SRPC_MSG_BATCH_REQST;
 169
 170         case SRPC_SERVICE_TEST:
 171                 return SRPC_MSG_TEST_REQST;
 172
 173         case SRPC_SERVICE_QUERY_STAT:
 174                 return SRPC_MSG_STAT_REQST;
 175
 176         case SRPC_SERVICE_BRW:
 177                 return SRPC_MSG_BRW_REQST;
 178
 179         case SRPC_SERVICE_PING:
 180                 return SRPC_MSG_PING_REQST;
 181
 182         case SRPC_SERVICE_JOIN:
 183                 return SRPC_MSG_JOIN_REQST;
 184         }
 185 }
 186
 187 static inline srpc_msg_type_t
 188 srpc_service2reply (int service)
 189 {
 190         return srpc_service2request(service) + 1;
 191 }
 192
 193 typedef enum {
 194         SRPC_BULK_REQ_RCVD   = 1, /* passive bulk request(PUT sink/GET source) received */
 195         SRPC_BULK_PUT_SENT   = 2, /* active bulk PUT sent (source) */
 196         SRPC_BULK_GET_RPLD   = 3, /* active bulk GET replied (sink) */
 197         SRPC_REPLY_RCVD      = 4, /* incoming reply received */
 198         SRPC_REPLY_SENT      = 5, /* outgoing reply sent */
 199         SRPC_REQUEST_RCVD    = 6, /* incoming request received */
 200         SRPC_REQUEST_SENT    = 7, /* outgoing request sent */
 201 } srpc_event_type_t;
 202
 203 /* RPC event */
 204 typedef struct {
 205         srpc_event_type_t ev_type;   /* what's up */
 206         lnet_event_kind_t ev_lnet;   /* LNet event type */
 207         int               ev_fired;  /* LNet event fired? */
 208         int               ev_status; /* LNet event status */
 209         void             *ev_data;   /* owning server/client RPC */
 210 } srpc_event_t;
 211
 212 typedef struct {
 213         int              bk_len;  /* len of bulk data */
 214         lnet_handle_md_t bk_mdh;
 215         int              bk_sink; /* sink/source */
 216         int              bk_niov; /* # iov in bk_iovs */
 217 #ifdef __KERNEL__
 218         lnet_kiov_t      bk_iovs[0];
 219 #else
 220         cfs_page_t     **bk_pages;
 221         lnet_md_iovec_t  bk_iovs[0];
 222 #endif
 223 } srpc_bulk_t; /* bulk descriptor */
 224
 225 /* message buffer descriptor */
 226 typedef struct {
 227         struct list_head     buf_list; /* chain on srpc_service::*_msgq */
 228         srpc_msg_t           buf_msg;
 229         lnet_handle_md_t     buf_mdh;
 230         lnet_nid_t           buf_self;
 231         lnet_process_id_t    buf_peer;
 232 } srpc_buffer_t;
 233
 234 /* server-side state of a RPC */
 235 typedef struct srpc_server_rpc {
 236         struct list_head     srpc_list;    /* chain on srpc_service::*_rpcq */
 237         struct srpc_service *srpc_service;
 238         swi_workitem_t       srpc_wi;
 239         srpc_event_t         srpc_ev;      /* bulk/reply event */
 240         lnet_nid_t           srpc_self;
 241         lnet_process_id_t    srpc_peer;
 242         srpc_msg_t           srpc_replymsg;
 243         lnet_handle_md_t     srpc_replymdh;
 244         srpc_buffer_t       *srpc_reqstbuf;
 245         srpc_bulk_t         *srpc_bulk;
 246
 247         unsigned int         srpc_aborted; /* being given up */
 248         int                  srpc_status;
 249         void               (*srpc_done)(struct srpc_server_rpc *);
 250 } srpc_server_rpc_t;
 251
 252 /* client-side state of a RPC */
 253 typedef struct srpc_client_rpc {
 254         struct list_head     crpc_list;   /* chain on user's lists */
 255         spinlock_t           crpc_lock;   /* serialize */
 256         int                  crpc_service;
 257         atomic_t             crpc_refcount;
 258         int                  crpc_timeout; /* # seconds to wait for reply */
 259         stt_timer_t          crpc_timer;
 260         swi_workitem_t       crpc_wi;
 261         lnet_process_id_t    crpc_dest;
 262
 263         void               (*crpc_done)(struct srpc_client_rpc *);
 264         void               (*crpc_fini)(struct srpc_client_rpc *);
 265         int                  crpc_status;    /* completion status */
 266         void                *crpc_priv;      /* caller data */
 267
 268         /* state flags */
 269         unsigned int         crpc_aborted:1; /* being given up */
 270         unsigned int         crpc_closed:1;  /* completed */
 271
 272         /* RPC events */
 273         srpc_event_t         crpc_bulkev;    /* bulk event */
 274         srpc_event_t         crpc_reqstev;   /* request event */
 275         srpc_event_t         crpc_replyev;   /* reply event */
 276
 277         /* bulk, request(reqst), and reply exchanged on wire */
 278         srpc_msg_t           crpc_reqstmsg;
 279         srpc_msg_t           crpc_replymsg;
 280         lnet_handle_md_t     crpc_reqstmdh;
 281         lnet_handle_md_t     crpc_replymdh;
 282         srpc_bulk_t          crpc_bulk;
 283 } srpc_client_rpc_t;
 284
 285 #define srpc_client_rpc_size(rpc)                                       \
 286 offsetof(srpc_client_rpc_t, crpc_bulk.bk_iovs[(rpc)->crpc_bulk.bk_niov])
 287
 288 #define srpc_client_rpc_addref(rpc)                                     \
 289 do {                                                                    \
 290         CDEBUG(D_NET, "RPC[%p] -> %s (%d)++\n",                         \
 291                (rpc), libcfs_id2str((rpc)->crpc_dest),                  \
 292                atomic_read(&(rpc)->crpc_refcount));                     \
 293         LASSERT(atomic_read(&(rpc)->crpc_refcount) > 0);                \
 294         atomic_inc(&(rpc)->crpc_refcount);                              \
 295 } while (0)
 296
 297 #define srpc_client_rpc_decref(rpc)                                     \
 298 do {                                                                    \
 299         CDEBUG(D_NET, "RPC[%p] -> %s (%d)--\n",                         \
 300                (rpc), libcfs_id2str((rpc)->crpc_dest),                  \
 301                atomic_read(&(rpc)->crpc_refcount));                     \
 302         LASSERT(atomic_read(&(rpc)->crpc_refcount) > 0);                \
 303         if (atomic_dec_and_test(&(rpc)->crpc_refcount))                 \
 304                 srpc_destroy_client_rpc(rpc);                           \
 305 } while (0)
 306
 307 #define srpc_event_pending(rpc)   ((rpc)->crpc_bulkev.ev_fired == 0 ||  \
 308                                    (rpc)->crpc_reqstev.ev_fired == 0 || \
 309                                    (rpc)->crpc_replyev.ev_fired == 0)
 310
 311 typedef struct srpc_service {
 312         int                sv_id;            /* service id */
 313         const char        *sv_name;          /* human readable name */
 314         int                sv_nprune;        /* # posted RPC to be pruned */
 315         int                sv_concur;        /* max # concurrent RPCs */
 316
 317         spinlock_t         sv_lock;
 318         int                sv_shuttingdown;
 319         srpc_event_t       sv_ev;            /* LNet event */
 320         int                sv_nposted_msg;   /* # posted message buffers */
 321         struct list_head   sv_free_rpcq;     /* free RPC descriptors */
 322         struct list_head   sv_active_rpcq;   /* in-flight RPCs */
 323         struct list_head   sv_posted_msgq;   /* posted message buffers */
 324         struct list_head   sv_blocked_msgq;  /* blocked for RPC descriptor */
 325
 326         /* Service callbacks:
 327          * - sv_handler: process incoming RPC request
 328          * - sv_bulk_ready: notify bulk data
 329          */
 330         int                (*sv_handler) (srpc_server_rpc_t *);
 331         int                (*sv_bulk_ready) (srpc_server_rpc_t *, int);
 332 } srpc_service_t;
 333
 334 #define SFW_POST_BUFFERS         256
 335 #define SFW_SERVICE_CONCURRENCY  (SFW_POST_BUFFERS/2)
 336
 337 typedef struct {
 338         struct list_head  sn_list;    /* chain on fw_zombie_sessions */
 339         lst_sid_t         sn_id;      /* unique identifier */
 340         unsigned int      sn_timeout; /* # seconds' inactivity to expire */
 341         int               sn_timer_active;
 342         stt_timer_t       sn_timer;
 343         struct list_head  sn_batches; /* list of batches */
 344         char              sn_name[LST_NAME_SIZE];
 345         atomic_t          sn_refcount;
 346         atomic_t          sn_brw_errors;
 347         atomic_t          sn_ping_errors;
 348 } sfw_session_t;
 349
 350 #define sfw_sid_equal(sid0, sid1)     ((sid0).ses_nid == (sid1).ses_nid && \
 351                                        (sid0).ses_stamp == (sid1).ses_stamp)
 352
 353 typedef struct {
 354         struct list_head  bat_list;      /* chain on sn_batches */
 355         lst_bid_t         bat_id;        /* batch id */
 356         int               bat_error;     /* error code of batch */
 357         sfw_session_t    *bat_session;   /* batch's session */
 358         atomic_t          bat_nactive;   /* # of active tests */
 359         struct list_head  bat_tests;     /* test instances */
 360 } sfw_batch_t;
 361
 362 typedef struct {
 363         int  (*tso_init)(struct sfw_test_instance *tsi); /* intialize test client */
 364         void (*tso_fini)(struct sfw_test_instance *tsi); /* finalize test client */
 365         int  (*tso_prep_rpc)(struct sfw_test_unit *tsu,
 366                              lnet_process_id_t dest,
 367                              srpc_client_rpc_t **rpc);   /* prep a tests rpc */
 368         void (*tso_done_rpc)(struct sfw_test_unit *tsu,
 369                              srpc_client_rpc_t *rpc);    /* done a test rpc */
 370 } sfw_test_client_ops_t;
 371
 372 typedef struct sfw_test_instance {
 373         struct list_head        tsi_list;         /* chain on batch */
 374         int                     tsi_service;      /* test type */
 375         sfw_batch_t            *tsi_batch;        /* batch */
 376         sfw_test_client_ops_t  *tsi_ops;          /* test client operations */
 377
 378         /* public parameter for all test units */
 379         int                     tsi_is_client:1;     /* is test client */
 380         int                     tsi_stoptsu_onerr:1; /* stop tsu on error */
 381         int                     tsi_concur;          /* concurrency */
 382         int                     tsi_loop;            /* loop count */
 383
 384         /* status of test instance */
 385         spinlock_t              tsi_lock;         /* serialize */
 386         int                     tsi_stopping:1;   /* test is stopping */
 387         atomic_t                tsi_nactive;      /* # of active test unit */
 388         struct list_head        tsi_units;        /* test units */
 389         struct list_head        tsi_free_rpcs;    /* free rpcs */
 390         struct list_head        tsi_active_rpcs;  /* active rpcs */
 391
 392         union {
 393                 test_bulk_req_t bulk;             /* bulk parameter */
 394                 test_ping_req_t ping;             /* ping parameter */
 395         } tsi_u;
 396 } sfw_test_instance_t;
 397
 398 /* XXX: trailing (CFS_PAGE_SIZE % sizeof(lnet_process_id_t)) bytes at
 399  * the end of pages are not used */
 400 #define SFW_MAX_CONCUR     LST_MAX_CONCUR
 401 #define SFW_ID_PER_PAGE    (CFS_PAGE_SIZE / sizeof(lnet_process_id_t))
 402 #define SFW_MAX_NDESTS     (LNET_MAX_IOV * SFW_ID_PER_PAGE)
 403 #define sfw_id_pages(n)    (((n) + SFW_ID_PER_PAGE - 1) / SFW_ID_PER_PAGE)
 404
 405 typedef struct sfw_test_unit {
 406         struct list_head        tsu_list;         /* chain on lst_test_instance */
 407         lnet_process_id_t       tsu_dest;         /* id of dest node */
 408         int                     tsu_loop;         /* loop count of the test */
 409         sfw_test_instance_t    *tsu_instance;     /* pointer to test instance */
 410         void                   *tsu_private;      /* private data */
 411         swi_workitem_t          tsu_worker;       /* workitem of the test unit */
 412 } sfw_test_unit_t;
 413
 414 typedef struct {
 415         struct list_head        tsc_list;         /* chain on fw_tests */
 416         srpc_service_t         *tsc_srv_service;  /* test service */
 417         sfw_test_client_ops_t  *tsc_cli_ops;      /* ops of test client */
 418 } sfw_test_case_t;
 419
 420
 421 srpc_client_rpc_t *
 422 sfw_create_rpc(lnet_process_id_t peer, int service, int nbulkiov, int bulklen,
 423                void (*done) (srpc_client_rpc_t *), void *priv);
 424 int sfw_create_test_rpc(sfw_test_unit_t *tsu, lnet_process_id_t peer,
 425                         int nblk, int blklen, srpc_client_rpc_t **rpc);
 426 void sfw_abort_rpc(srpc_client_rpc_t *rpc);
 427 void sfw_post_rpc(srpc_client_rpc_t *rpc);
 428 void sfw_client_rpc_done(srpc_client_rpc_t *rpc);
 429 void sfw_unpack_message(srpc_msg_t *msg);
 430 void sfw_free_pages(srpc_server_rpc_t *rpc);
 431 void sfw_add_bulk_page(srpc_bulk_t *bk, cfs_page_t *pg, int i);
 432 int sfw_alloc_pages(srpc_server_rpc_t *rpc, int npages, int sink);
 433 int sfw_make_session (srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply);
 434
 435 srpc_client_rpc_t *
 436 srpc_create_client_rpc(lnet_process_id_t peer, int service,
 437                        int nbulkiov, int bulklen,
 438                        void (*rpc_done)(srpc_client_rpc_t *),
 439                        void (*rpc_fini)(srpc_client_rpc_t *), void *priv);
 440 void srpc_post_rpc(srpc_client_rpc_t *rpc);
 441 void srpc_abort_rpc(srpc_client_rpc_t *rpc, int why);
 442 void srpc_free_bulk(srpc_bulk_t *bk);
 443 srpc_bulk_t *srpc_alloc_bulk(int npages, int sink);
 444 int srpc_send_rpc(swi_workitem_t *wi);
 445 int srpc_send_reply(srpc_server_rpc_t *rpc);
 446 int srpc_add_service(srpc_service_t *sv);
 447 int srpc_remove_service(srpc_service_t *sv);
 448 void srpc_shutdown_service(srpc_service_t *sv);
 449 void srpc_abort_service(srpc_service_t *sv);
 450 int srpc_finish_service(srpc_service_t *sv);
 451 int srpc_service_add_buffers(srpc_service_t *sv, int nbuffer);
 452 void srpc_service_remove_buffers(srpc_service_t *sv, int nbuffer);
 453 void srpc_get_counters(srpc_counters_t *cnt);
 454 void srpc_set_counters(const srpc_counters_t *cnt);
 455
 456 void swi_kill_workitem(swi_workitem_t *wi);
 457 void swi_schedule_workitem(swi_workitem_t *wi);
 458 void swi_schedule_serial_workitem(swi_workitem_t *wi);
 459 int swi_startup(void);
 460 int sfw_startup(void);
 461 int srpc_startup(void);
 462 void swi_shutdown(void);
 463 void sfw_shutdown(void);
 464 void srpc_shutdown(void);
 465
 466 static inline void
 467 srpc_destroy_client_rpc (srpc_client_rpc_t *rpc)
 468 {
 469         LASSERT (rpc != NULL);
 470         LASSERT (!srpc_event_pending(rpc));
 471         LASSERT (atomic_read(&rpc->crpc_refcount) == 0);
 472 #ifndef __KERNEL__
 473         LASSERT (rpc->crpc_bulk.bk_pages == NULL);
 474 #endif
 475
 476         if (rpc->crpc_fini == NULL) {
 477                 LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc));
 478         } else {
 479                 (*rpc->crpc_fini) (rpc);
 480         }
 481
 482         return;
 483 }
 484
 485 static inline void
 486 srpc_init_client_rpc (srpc_client_rpc_t *rpc, lnet_process_id_t peer,
 487                       int service, int nbulkiov, int bulklen,
 488                       void (*rpc_done)(srpc_client_rpc_t *),
 489                       void (*rpc_fini)(srpc_client_rpc_t *), void *priv)
 490 {
 491         LASSERT (nbulkiov <= LNET_MAX_IOV);
 492
 493         memset(rpc, 0, offsetof(srpc_client_rpc_t,
 494                                 crpc_bulk.bk_iovs[nbulkiov]));
 495
 496         CFS_INIT_LIST_HEAD(&rpc->crpc_list);
 497         swi_init_workitem(&rpc->crpc_wi, rpc, srpc_send_rpc);
 498         spin_lock_init(&rpc->crpc_lock);
 499         atomic_set(&rpc->crpc_refcount, 1); /* 1 ref for caller */
 500
 501         rpc->crpc_dest         = peer;
 502         rpc->crpc_priv         = priv;
 503         rpc->crpc_service      = service;
 504         rpc->crpc_bulk.bk_len  = bulklen;
 505         rpc->crpc_bulk.bk_niov = nbulkiov;
 506         rpc->crpc_done         = rpc_done;
 507         rpc->crpc_fini         = rpc_fini;
 508         LNetInvalidateHandle(&rpc->crpc_reqstmdh);
 509         LNetInvalidateHandle(&rpc->crpc_replymdh);
 510         LNetInvalidateHandle(&rpc->crpc_bulk.bk_mdh);
 511
 512         /* no event is expected at this point */
 513         rpc->crpc_bulkev.ev_fired  =
 514         rpc->crpc_reqstev.ev_fired =
 515         rpc->crpc_replyev.ev_fired = 1;
 516
 517         rpc->crpc_reqstmsg.msg_magic   = SRPC_MSG_MAGIC;
 518         rpc->crpc_reqstmsg.msg_version = SRPC_MSG_VERSION;
 519         rpc->crpc_reqstmsg.msg_type    = srpc_service2request(service);
 520         return;
 521 }
 522
 523 static inline const char *
 524 swi_state2str (int state)
 525 {
 526 #define STATE2STR(x) case x: return #x
 527         switch(state) {
 528                 default:
 529                         LBUG();
 530                 STATE2STR(SWI_STATE_NEWBORN);
 531                 STATE2STR(SWI_STATE_REPLY_SUBMITTED);
 532                 STATE2STR(SWI_STATE_REPLY_SENT);
 533                 STATE2STR(SWI_STATE_REQUEST_SUBMITTED);
 534                 STATE2STR(SWI_STATE_REQUEST_SENT);
 535                 STATE2STR(SWI_STATE_REPLY_RECEIVED);
 536                 STATE2STR(SWI_STATE_BULK_STARTED);
 537                 STATE2STR(SWI_STATE_DONE);
 538         }
 539 #undef STATE2STR
 540 }
 541
 542 #define UNUSED(x)       ( (void)(x) )
 543
 544 #ifndef __KERNEL__
 545
 546 int stt_poll_interval(void);
 547 int sfw_session_removed(void);
 548
 549 int stt_check_events(void);
 550 int swi_check_events(void);
 551 int srpc_check_event(int timeout);
 552
 553 int lnet_selftest_init(void);
 554 void lnet_selftest_fini(void);
 555 int selftest_wait_events(void);
 556
 557 #else
 558
 559 #define selftest_wait_events()    cfs_pause(cfs_time_seconds(1))
 560
 561 #endif
 562
 563 #define lst_wait_until(cond, lock, fmt, ...)                            \
 564 do {                                                                    \
 565         int __I = 2;                                                    \
 566         while (!(cond)) {                                               \
 567                 CDEBUG(IS_PO2(++__I) ? D_WARNING : D_NET,               \
 568                        fmt, ## __VA_ARGS__);                            \
 569                 spin_unlock(&(lock));                                   \
 570                                                                         \
 571                 selftest_wait_events();                                 \
 572                                                                         \
 573                 spin_lock(&(lock));                                     \
 574         }                                                               \
 575 } while (0)
 576
 577 static inline void
 578 srpc_wait_service_shutdown (srpc_service_t *sv)
 579 {
 580         int i = 2;
 581
 582         spin_lock(&sv->sv_lock);
 583         LASSERT (sv->sv_shuttingdown);
 584         spin_unlock(&sv->sv_lock);
 585
 586         while (srpc_finish_service(sv) == 0) {
 587                 i++;
 588                 CDEBUG (((i & -i) == i) ? D_WARNING : D_NET,
 589                         "Waiting for %s service to shutdown...\n",
 590                         sv->sv_name);
 591                 selftest_wait_events();
 592         }
 593 }
 594
 595 #endif /* __SELFTEST_SELFTEST_H__ */