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 (c) 2007, 2010, Oracle and/or its affiliates. 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 srpc_service;
  79 struct sfw_test_unit;
  80 struct sfw_test_instance;
  81
  82 /* services below SRPC_FRAMEWORK_SERVICE_MAX_ID are framework
  83  * services, e.g. create/modify session.
  84  */
  85 #define SRPC_SERVICE_DEBUG              0
  86 #define SRPC_SERVICE_MAKE_SESSION       1
  87 #define SRPC_SERVICE_REMOVE_SESSION     2
  88 #define SRPC_SERVICE_BATCH              3
  89 #define SRPC_SERVICE_TEST               4
  90 #define SRPC_SERVICE_QUERY_STAT         5
  91 #define SRPC_SERVICE_JOIN               6
  92 #define SRPC_FRAMEWORK_SERVICE_MAX_ID   10
  93 /* other services start from SRPC_FRAMEWORK_SERVICE_MAX_ID+1 */
  94 #define SRPC_SERVICE_BRW                11
  95 #define SRPC_SERVICE_PING               12
  96 #define SRPC_SERVICE_MAX_ID             12
  97
  98 #define SRPC_REQUEST_PORTAL             50
  99 /* a lazy portal for framework RPC requests */
 100 #define SRPC_FRAMEWORK_REQUEST_PORTAL   51
 101 /* all reply/bulk RDMAs go to this portal */
 102 #define SRPC_RDMA_PORTAL                52
 103
 104 static inline srpc_msg_type_t
 105 srpc_service2request (int service)
 106 {
 107         switch (service) {
 108         default:
 109                 LBUG ();
 110         case SRPC_SERVICE_DEBUG:
 111                 return SRPC_MSG_DEBUG_REQST;
 112
 113         case SRPC_SERVICE_MAKE_SESSION:
 114                 return SRPC_MSG_MKSN_REQST;
 115
 116         case SRPC_SERVICE_REMOVE_SESSION:
 117                 return SRPC_MSG_RMSN_REQST;
 118
 119         case SRPC_SERVICE_BATCH:
 120                 return SRPC_MSG_BATCH_REQST;
 121
 122         case SRPC_SERVICE_TEST:
 123                 return SRPC_MSG_TEST_REQST;
 124
 125         case SRPC_SERVICE_QUERY_STAT:
 126                 return SRPC_MSG_STAT_REQST;
 127
 128         case SRPC_SERVICE_BRW:
 129                 return SRPC_MSG_BRW_REQST;
 130
 131         case SRPC_SERVICE_PING:
 132                 return SRPC_MSG_PING_REQST;
 133
 134         case SRPC_SERVICE_JOIN:
 135                 return SRPC_MSG_JOIN_REQST;
 136         }
 137 }
 138
 139 static inline srpc_msg_type_t
 140 srpc_service2reply (int service)
 141 {
 142         return srpc_service2request(service) + 1;
 143 }
 144
 145 typedef enum {
 146         SRPC_BULK_REQ_RCVD   = 1, /* passive bulk request(PUT sink/GET source) received */
 147         SRPC_BULK_PUT_SENT   = 2, /* active bulk PUT sent (source) */
 148         SRPC_BULK_GET_RPLD   = 3, /* active bulk GET replied (sink) */
 149         SRPC_REPLY_RCVD      = 4, /* incoming reply received */
 150         SRPC_REPLY_SENT      = 5, /* outgoing reply sent */
 151         SRPC_REQUEST_RCVD    = 6, /* incoming request received */
 152         SRPC_REQUEST_SENT    = 7, /* outgoing request sent */
 153 } srpc_event_type_t;
 154
 155 /* RPC event */
 156 typedef struct {
 157         srpc_event_type_t ev_type;   /* what's up */
 158         lnet_event_kind_t ev_lnet;   /* LNet event type */
 159         int               ev_fired;  /* LNet event fired? */
 160         int               ev_status; /* LNet event status */
 161         void             *ev_data;   /* owning server/client RPC */
 162 } srpc_event_t;
 163
 164 typedef struct {
 165         int              bk_len;  /* len of bulk data */
 166         lnet_handle_md_t bk_mdh;
 167         int              bk_sink; /* sink/source */
 168         int              bk_niov; /* # iov in bk_iovs */
 169 #ifdef __KERNEL__
 170         lnet_kiov_t      bk_iovs[0];
 171 #else
 172         cfs_page_t     **bk_pages;
 173         lnet_md_iovec_t  bk_iovs[0];
 174 #endif
 175 } srpc_bulk_t; /* bulk descriptor */
 176
 177 /* message buffer descriptor */
 178 typedef struct {
 179         cfs_list_t           buf_list; /* chain on srpc_service::*_msgq */
 180         srpc_msg_t           buf_msg;
 181         lnet_handle_md_t     buf_mdh;
 182         lnet_nid_t           buf_self;
 183         lnet_process_id_t    buf_peer;
 184 } srpc_buffer_t;
 185
 186 struct swi_workitem;
 187 typedef int (*swi_action_t) (struct swi_workitem *);
 188
 189 typedef struct swi_workitem {
 190         cfs_workitem_t       swi_workitem;
 191         swi_action_t         swi_action;
 192         int                  swi_state;
 193 } swi_workitem_t;
 194
 195 /* server-side state of a RPC */
 196 typedef struct srpc_server_rpc {
 197         cfs_list_t           srpc_list;    /* chain on srpc_service::*_rpcq */
 198         struct srpc_service *srpc_service;
 199         swi_workitem_t       srpc_wi;
 200         srpc_event_t         srpc_ev;      /* bulk/reply event */
 201         lnet_nid_t           srpc_self;
 202         lnet_process_id_t    srpc_peer;
 203         srpc_msg_t           srpc_replymsg;
 204         lnet_handle_md_t     srpc_replymdh;
 205         srpc_buffer_t       *srpc_reqstbuf;
 206         srpc_bulk_t         *srpc_bulk;
 207
 208         unsigned int         srpc_aborted; /* being given up */
 209         int                  srpc_status;
 210         void               (*srpc_done)(struct srpc_server_rpc *);
 211 } srpc_server_rpc_t;
 212
 213 /* client-side state of a RPC */
 214 typedef struct srpc_client_rpc {
 215         cfs_list_t           crpc_list;   /* chain on user's lists */
 216         cfs_spinlock_t       crpc_lock;   /* serialize */
 217         int                  crpc_service;
 218         cfs_atomic_t         crpc_refcount;
 219         int                  crpc_timeout; /* # seconds to wait for reply */
 220         stt_timer_t          crpc_timer;
 221         swi_workitem_t       crpc_wi;
 222         lnet_process_id_t    crpc_dest;
 223
 224         void               (*crpc_done)(struct srpc_client_rpc *);
 225         void               (*crpc_fini)(struct srpc_client_rpc *);
 226         int                  crpc_status;    /* completion status */
 227         void                *crpc_priv;      /* caller data */
 228
 229         /* state flags */
 230         unsigned int         crpc_aborted:1; /* being given up */
 231         unsigned int         crpc_closed:1;  /* completed */
 232
 233         /* RPC events */
 234         srpc_event_t         crpc_bulkev;    /* bulk event */
 235         srpc_event_t         crpc_reqstev;   /* request event */
 236         srpc_event_t         crpc_replyev;   /* reply event */
 237
 238         /* bulk, request(reqst), and reply exchanged on wire */
 239         srpc_msg_t           crpc_reqstmsg;
 240         srpc_msg_t           crpc_replymsg;
 241         lnet_handle_md_t     crpc_reqstmdh;
 242         lnet_handle_md_t     crpc_replymdh;
 243         srpc_bulk_t          crpc_bulk;
 244 } srpc_client_rpc_t;
 245
 246 #define srpc_client_rpc_size(rpc)                                       \
 247 offsetof(srpc_client_rpc_t, crpc_bulk.bk_iovs[(rpc)->crpc_bulk.bk_niov])
 248
 249 #define srpc_client_rpc_addref(rpc)                                     \
 250 do {                                                                    \
 251         CDEBUG(D_NET, "RPC[%p] -> %s (%d)++\n",                         \
 252                (rpc), libcfs_id2str((rpc)->crpc_dest),                  \
 253                cfs_atomic_read(&(rpc)->crpc_refcount));                 \
 254         LASSERT(cfs_atomic_read(&(rpc)->crpc_refcount) > 0);            \
 255         cfs_atomic_inc(&(rpc)->crpc_refcount);                          \
 256 } while (0)
 257
 258 #define srpc_client_rpc_decref(rpc)                                     \
 259 do {                                                                    \
 260         CDEBUG(D_NET, "RPC[%p] -> %s (%d)--\n",                         \
 261                (rpc), libcfs_id2str((rpc)->crpc_dest),                  \
 262                cfs_atomic_read(&(rpc)->crpc_refcount));                 \
 263         LASSERT(cfs_atomic_read(&(rpc)->crpc_refcount) > 0);            \
 264         if (cfs_atomic_dec_and_test(&(rpc)->crpc_refcount))             \
 265                 srpc_destroy_client_rpc(rpc);                           \
 266 } while (0)
 267
 268 #define srpc_event_pending(rpc)   ((rpc)->crpc_bulkev.ev_fired == 0 ||  \
 269                                    (rpc)->crpc_reqstev.ev_fired == 0 || \
 270                                    (rpc)->crpc_replyev.ev_fired == 0)
 271
 272 typedef struct srpc_service {
 273         int                sv_id;            /* service id */
 274         const char        *sv_name;          /* human readable name */
 275         int                sv_nprune;        /* # posted RPC to be pruned */
 276         int                sv_concur;        /* max # concurrent RPCs */
 277
 278         cfs_spinlock_t     sv_lock;
 279         int                sv_shuttingdown;
 280         srpc_event_t       sv_ev;            /* LNet event */
 281         int                sv_nposted_msg;   /* # posted message buffers */
 282         cfs_list_t         sv_free_rpcq;     /* free RPC descriptors */
 283         cfs_list_t         sv_active_rpcq;   /* in-flight RPCs */
 284         cfs_list_t         sv_posted_msgq;   /* posted message buffers */
 285         cfs_list_t         sv_blocked_msgq;  /* blocked for RPC descriptor */
 286
 287         /* Service callbacks:
 288          * - sv_handler: process incoming RPC request
 289          * - sv_bulk_ready: notify bulk data
 290          */
 291         int              (*sv_handler) (srpc_server_rpc_t *);
 292         int              (*sv_bulk_ready) (srpc_server_rpc_t *, int);
 293 } srpc_service_t;
 294
 295 #define SFW_POST_BUFFERS         256
 296 #define SFW_SERVICE_CONCURRENCY  (SFW_POST_BUFFERS/2)
 297
 298 typedef struct {
 299         cfs_list_t        sn_list;    /* chain on fw_zombie_sessions */
 300         lst_sid_t         sn_id;      /* unique identifier */
 301         unsigned int      sn_timeout; /* # seconds' inactivity to expire */
 302         int               sn_timer_active;
 303         stt_timer_t       sn_timer;
 304         cfs_list_t        sn_batches; /* list of batches */
 305         char              sn_name[LST_NAME_SIZE];
 306         cfs_atomic_t      sn_refcount;
 307         cfs_atomic_t      sn_brw_errors;
 308         cfs_atomic_t      sn_ping_errors;
 309 } sfw_session_t;
 310
 311 #define sfw_sid_equal(sid0, sid1)     ((sid0).ses_nid == (sid1).ses_nid && \
 312                                        (sid0).ses_stamp == (sid1).ses_stamp)
 313
 314 typedef struct {
 315         cfs_list_t        bat_list;      /* chain on sn_batches */
 316         lst_bid_t         bat_id;        /* batch id */
 317         int               bat_error;     /* error code of batch */
 318         sfw_session_t    *bat_session;   /* batch's session */
 319         cfs_atomic_t      bat_nactive;   /* # of active tests */
 320         cfs_list_t        bat_tests;     /* test instances */
 321 } sfw_batch_t;
 322
 323 typedef struct {
 324         int  (*tso_init)(struct sfw_test_instance *tsi); /* intialize test client */
 325         void (*tso_fini)(struct sfw_test_instance *tsi); /* finalize test client */
 326         int  (*tso_prep_rpc)(struct sfw_test_unit *tsu,
 327                              lnet_process_id_t dest,
 328                              srpc_client_rpc_t **rpc);   /* prep a tests rpc */
 329         void (*tso_done_rpc)(struct sfw_test_unit *tsu,
 330                              srpc_client_rpc_t *rpc);    /* done a test rpc */
 331 } sfw_test_client_ops_t;
 332
 333 typedef struct sfw_test_instance {
 334         cfs_list_t              tsi_list;         /* chain on batch */
 335         int                     tsi_service;      /* test type */
 336         sfw_batch_t            *tsi_batch;        /* batch */
 337         sfw_test_client_ops_t  *tsi_ops;          /* test client operations */
 338
 339         /* public parameter for all test units */
 340         int                     tsi_is_client:1;     /* is test client */
 341         int                     tsi_stoptsu_onerr:1; /* stop tsu on error */
 342         int                     tsi_concur;          /* concurrency */
 343         int                     tsi_loop;            /* loop count */
 344
 345         /* status of test instance */
 346         cfs_spinlock_t          tsi_lock;         /* serialize */
 347         int                     tsi_stopping:1;   /* test is stopping */
 348         cfs_atomic_t            tsi_nactive;      /* # of active test unit */
 349         cfs_list_t              tsi_units;        /* test units */
 350         cfs_list_t              tsi_free_rpcs;    /* free rpcs */
 351         cfs_list_t              tsi_active_rpcs;  /* active rpcs */
 352
 353         union {
 354                 test_bulk_req_t bulk;             /* bulk parameter */
 355                 test_ping_req_t ping;             /* ping parameter */
 356         } tsi_u;
 357 } sfw_test_instance_t;
 358
 359 /* XXX: trailing (CFS_PAGE_SIZE % sizeof(lnet_process_id_t)) bytes at
 360  * the end of pages are not used */
 361 #define SFW_MAX_CONCUR     LST_MAX_CONCUR
 362 #define SFW_ID_PER_PAGE    (CFS_PAGE_SIZE / sizeof(lnet_process_id_packed_t))
 363 #define SFW_MAX_NDESTS     (LNET_MAX_IOV * SFW_ID_PER_PAGE)
 364 #define sfw_id_pages(n)    (((n) + SFW_ID_PER_PAGE - 1) / SFW_ID_PER_PAGE)
 365
 366 typedef struct sfw_test_unit {
 367         cfs_list_t            tsu_list;         /* chain on lst_test_instance */
 368         lnet_process_id_t     tsu_dest;         /* id of dest node */
 369         int                   tsu_loop;         /* loop count of the test */
 370         sfw_test_instance_t  *tsu_instance;     /* pointer to test instance */
 371         void                 *tsu_private;      /* private data */
 372         swi_workitem_t        tsu_worker;       /* workitem of the test unit */
 373 } sfw_test_unit_t;
 374
 375 typedef struct {
 376         cfs_list_t              tsc_list;         /* chain on fw_tests */
 377         srpc_service_t         *tsc_srv_service;  /* test service */
 378         sfw_test_client_ops_t  *tsc_cli_ops;      /* ops of test client */
 379 } sfw_test_case_t;
 380
 381 srpc_client_rpc_t *
 382 sfw_create_rpc(lnet_process_id_t peer, int service, int nbulkiov, int bulklen,
 383                void (*done) (srpc_client_rpc_t *), void *priv);
 384 int sfw_create_test_rpc(sfw_test_unit_t *tsu, lnet_process_id_t peer,
 385                         int nblk, int blklen, srpc_client_rpc_t **rpc);
 386 void sfw_abort_rpc(srpc_client_rpc_t *rpc);
 387 void sfw_post_rpc(srpc_client_rpc_t *rpc);
 388 void sfw_client_rpc_done(srpc_client_rpc_t *rpc);
 389 void sfw_unpack_message(srpc_msg_t *msg);
 390 void sfw_free_pages(srpc_server_rpc_t *rpc);
 391 void sfw_add_bulk_page(srpc_bulk_t *bk, cfs_page_t *pg, int i);
 392 int sfw_alloc_pages(srpc_server_rpc_t *rpc, int npages, int sink);
 393 int sfw_make_session (srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply);
 394
 395 srpc_client_rpc_t *
 396 srpc_create_client_rpc(lnet_process_id_t peer, int service,
 397                        int nbulkiov, int bulklen,
 398                        void (*rpc_done)(srpc_client_rpc_t *),
 399                        void (*rpc_fini)(srpc_client_rpc_t *), void *priv);
 400 void srpc_post_rpc(srpc_client_rpc_t *rpc);
 401 void srpc_abort_rpc(srpc_client_rpc_t *rpc, int why);
 402 void srpc_free_bulk(srpc_bulk_t *bk);
 403 srpc_bulk_t *srpc_alloc_bulk(int npages, int sink);
 404 int srpc_send_rpc(swi_workitem_t *wi);
 405 int srpc_send_reply(srpc_server_rpc_t *rpc);
 406 int srpc_add_service(srpc_service_t *sv);
 407 int srpc_remove_service(srpc_service_t *sv);
 408 void srpc_shutdown_service(srpc_service_t *sv);
 409 void srpc_abort_service(srpc_service_t *sv);
 410 int srpc_finish_service(srpc_service_t *sv);
 411 int srpc_service_add_buffers(srpc_service_t *sv, int nbuffer);
 412 void srpc_service_remove_buffers(srpc_service_t *sv, int nbuffer);
 413 void srpc_get_counters(srpc_counters_t *cnt);
 414 void srpc_set_counters(const srpc_counters_t *cnt);
 415
 416 static inline int
 417 swi_wi_action(cfs_workitem_t *wi)
 418 {
 419         swi_workitem_t *swi = container_of(wi, swi_workitem_t, swi_workitem);
 420
 421         return swi->swi_action(swi);
 422 }
 423
 424 static inline void
 425 swi_init_workitem (swi_workitem_t *swi, void *data,
 426                    swi_action_t action, short sched_id)
 427 {
 428         swi->swi_action = action;
 429         swi->swi_state  = SWI_STATE_NEWBORN;
 430         cfs_wi_init(&swi->swi_workitem, data, swi_wi_action, sched_id);
 431 }
 432
 433 static inline void
 434 swi_schedule_workitem(swi_workitem_t *wi)
 435 {
 436         cfs_wi_schedule(&wi->swi_workitem);
 437 }
 438
 439 static inline void
 440 swi_kill_workitem(swi_workitem_t *swi)
 441 {
 442         cfs_wi_exit(&swi->swi_workitem);
 443 }
 444
 445 #ifndef __KERNEL__
 446 static inline int
 447 swi_check_events(void)
 448 {
 449         return cfs_wi_check_events();
 450 }
 451 #endif
 452
 453 int sfw_startup(void);
 454 int srpc_startup(void);
 455 void sfw_shutdown(void);
 456 void srpc_shutdown(void);
 457
 458 static inline void
 459 srpc_destroy_client_rpc (srpc_client_rpc_t *rpc)
 460 {
 461         LASSERT (rpc != NULL);
 462         LASSERT (!srpc_event_pending(rpc));
 463         LASSERT (cfs_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         swi_init_workitem(&rpc->crpc_wi, rpc, srpc_send_rpc,
 490                           CFS_WI_SCHED_ANY);
 491         cfs_spin_lock_init(&rpc->crpc_lock);
 492         cfs_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         LNetInvalidateHandle(&rpc->crpc_reqstmdh);
 502         LNetInvalidateHandle(&rpc->crpc_replymdh);
 503         LNetInvalidateHandle(&rpc->crpc_bulk.bk_mdh);
 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 srpc_check_event(int timeout);
 544
 545 int lnet_selftest_init(void);
 546 void lnet_selftest_fini(void);
 547 int selftest_wait_events(void);
 548
 549 #else
 550
 551 #define selftest_wait_events()    cfs_pause(cfs_time_seconds(1))
 552
 553 #endif
 554
 555 #define lst_wait_until(cond, lock, fmt, ...)                            \
 556 do {                                                                    \
 557         int __I = 2;                                                    \
 558         while (!(cond)) {                                               \
 559                 CDEBUG(IS_PO2(++__I) ? D_WARNING : D_NET,               \
 560                        fmt, ## __VA_ARGS__);                            \
 561                 cfs_spin_unlock(&(lock));                               \
 562                                                                         \
 563                 selftest_wait_events();                                 \
 564                                                                         \
 565                 cfs_spin_lock(&(lock));                                 \
 566         }                                                               \
 567 } while (0)
 568
 569 static inline void
 570 srpc_wait_service_shutdown (srpc_service_t *sv)
 571 {
 572         int i = 2;
 573
 574         cfs_spin_lock(&sv->sv_lock);
 575         LASSERT (sv->sv_shuttingdown);
 576         cfs_spin_unlock(&sv->sv_lock);
 577
 578         while (srpc_finish_service(sv) == 0) {
 579                 i++;
 580                 CDEBUG (((i & -i) == i) ? D_WARNING : D_NET,
 581                         "Waiting for %s service to shutdown...\n",
 582                         sv->sv_name);
 583                 selftest_wait_events();
 584         }
 585 }
 586
 587 #endif /* __SELFTEST_SELFTEST_H__ */