lnet/selftest/selftest.h

   1 /*
   2  * GPL HEADER START
   3  *
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 only,
   8  * as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License version 2 for more details (a copy is included
  14  * in the LICENSE file that accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * version 2 along with this program; If not, see
  18  * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
  19  * copy of GPLv2].
  20  *
  21  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  22  * CA 95054 USA or visit www.sun.com if you need additional information or
  23  * have any questions.
  24  *
  25  * GPL HEADER END
  26  */
  27 /*
  28  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  29  * Use is subject to license terms.
  30  */
  31 /*
  32  * This file is part of Lustre, http://www.lustre.org/
  33  * Lustre is a trademark of Sun Microsystems, Inc.
  34  *
  35  * lnet/selftest/selftest.h
  36  *
  37  * Author: Isaac Huang <isaac@clusterfs.com>
  38  */
  39 #ifndef __SELFTEST_SELFTEST_H__
  40 #define __SELFTEST_SELFTEST_H__
  41
  42 #define LNET_ONLY
  43
  44 #ifndef __KERNEL__
  45
  46 /* XXX workaround XXX */
  47 #ifdef HAVE_SYS_TYPES_H
  48 #include <sys/types.h>
  49 #endif
  50
  51 #endif
  52 #include <libcfs/libcfs.h>
  53 #include <lnet/lnet.h>
  54 #include <lnet/lib-lnet.h>
  55 #include <lnet/lib-types.h>
  56 #include <lnet/lnetst.h>
  57
  58 #include "rpc.h"
  59 #include "timer.h"
  60
  61 #ifndef MADE_WITHOUT_COMPROMISE
  62 #define MADE_WITHOUT_COMPROMISE
  63 #endif
  64
  65
  66 #define SWI_STATE_NEWBORN                  0
  67 #define SWI_STATE_REPLY_SUBMITTED          1
  68 #define SWI_STATE_REPLY_SENT               2
  69 #define SWI_STATE_REQUEST_SUBMITTED        3
  70 #define SWI_STATE_REQUEST_SENT             4
  71 #define SWI_STATE_REPLY_RECEIVED           5
  72 #define SWI_STATE_BULK_STARTED             6
  73 #define SWI_STATE_DONE                     10
  74
  75 /* forward refs */
  76 struct srpc_service;
  77 struct sfw_test_unit;
  78 struct sfw_test_instance;
  79
  80 /* services below SRPC_FRAMEWORK_SERVICE_MAX_ID are framework
  81  * services, e.g. create/modify session.
  82  */
  83 #define SRPC_SERVICE_DEBUG              0
  84 #define SRPC_SERVICE_MAKE_SESSION       1
  85 #define SRPC_SERVICE_REMOVE_SESSION     2
  86 #define SRPC_SERVICE_BATCH              3
  87 #define SRPC_SERVICE_TEST               4
  88 #define SRPC_SERVICE_QUERY_STAT         5
  89 #define SRPC_SERVICE_JOIN               6
  90 #define SRPC_FRAMEWORK_SERVICE_MAX_ID   10
  91 /* other services start from SRPC_FRAMEWORK_SERVICE_MAX_ID+1 */
  92 #define SRPC_SERVICE_BRW                11
  93 #define SRPC_SERVICE_PING               12
  94 #define SRPC_SERVICE_MAX_ID             12
  95
  96 #define SRPC_REQUEST_PORTAL             50
  97 /* a lazy portal for framework RPC requests */
  98 #define SRPC_FRAMEWORK_REQUEST_PORTAL   51
  99 /* all reply/bulk RDMAs go to this portal */
 100 #define SRPC_RDMA_PORTAL                52
 101
 102 static inline srpc_msg_type_t
 103 srpc_service2request (int service)
 104 {
 105         switch (service) {
 106         default:
 107                 LBUG ();
 108         case SRPC_SERVICE_DEBUG:
 109                 return SRPC_MSG_DEBUG_REQST;
 110
 111         case SRPC_SERVICE_MAKE_SESSION:
 112                 return SRPC_MSG_MKSN_REQST;
 113
 114         case SRPC_SERVICE_REMOVE_SESSION:
 115                 return SRPC_MSG_RMSN_REQST;
 116
 117         case SRPC_SERVICE_BATCH:
 118                 return SRPC_MSG_BATCH_REQST;
 119
 120         case SRPC_SERVICE_TEST:
 121                 return SRPC_MSG_TEST_REQST;
 122
 123         case SRPC_SERVICE_QUERY_STAT:
 124                 return SRPC_MSG_STAT_REQST;
 125
 126         case SRPC_SERVICE_BRW:
 127                 return SRPC_MSG_BRW_REQST;
 128
 129         case SRPC_SERVICE_PING:
 130                 return SRPC_MSG_PING_REQST;
 131
 132         case SRPC_SERVICE_JOIN:
 133                 return SRPC_MSG_JOIN_REQST;
 134         }
 135 }
 136
 137 static inline srpc_msg_type_t
 138 srpc_service2reply (int service)
 139 {
 140         return srpc_service2request(service) + 1;
 141 }
 142
 143 typedef enum {
 144         SRPC_BULK_REQ_RCVD   = 1, /* passive bulk request(PUT sink/GET source) received */
 145         SRPC_BULK_PUT_SENT   = 2, /* active bulk PUT sent (source) */
 146         SRPC_BULK_GET_RPLD   = 3, /* active bulk GET replied (sink) */
 147         SRPC_REPLY_RCVD      = 4, /* incoming reply received */
 148         SRPC_REPLY_SENT      = 5, /* outgoing reply sent */
 149         SRPC_REQUEST_RCVD    = 6, /* incoming request received */
 150         SRPC_REQUEST_SENT    = 7, /* outgoing request sent */
 151 } srpc_event_type_t;
 152
 153 /* RPC event */
 154 typedef struct {
 155         srpc_event_type_t ev_type;   /* what's up */
 156         lnet_event_kind_t ev_lnet;   /* LNet event type */
 157         int               ev_fired;  /* LNet event fired? */
 158         int               ev_status; /* LNet event status */
 159         void             *ev_data;   /* owning server/client RPC */
 160 } srpc_event_t;
 161
 162 typedef struct {
 163         int              bk_len;  /* len of bulk data */
 164         lnet_handle_md_t bk_mdh;
 165         int              bk_sink; /* sink/source */
 166         int              bk_niov; /* # iov in bk_iovs */
 167 #ifdef __KERNEL__
 168         lnet_kiov_t      bk_iovs[0];
 169 #else
 170         cfs_page_t     **bk_pages;
 171         lnet_md_iovec_t  bk_iovs[0];
 172 #endif
 173 } srpc_bulk_t; /* bulk descriptor */
 174
 175 /* message buffer descriptor */
 176 typedef struct {
 177         cfs_list_t           buf_list; /* chain on srpc_service::*_msgq */
 178         srpc_msg_t           buf_msg;
 179         lnet_handle_md_t     buf_mdh;
 180         lnet_nid_t           buf_self;
 181         lnet_process_id_t    buf_peer;
 182 } srpc_buffer_t;
 183
 184 struct swi_workitem;
 185 typedef int (*swi_action_t) (struct swi_workitem *);
 186
 187 typedef struct swi_workitem {
 188         cfs_workitem_t       swi_workitem;
 189         swi_action_t         swi_action;
 190         int                  swi_state;
 191 } swi_workitem_t;
 192
 193 /* server-side state of a RPC */
 194 typedef struct srpc_server_rpc {
 195         cfs_list_t           srpc_list;    /* chain on srpc_service::*_rpcq */
 196         struct srpc_service *srpc_service;
 197         swi_workitem_t       srpc_wi;
 198         srpc_event_t         srpc_ev;      /* bulk/reply event */
 199         lnet_nid_t           srpc_self;
 200         lnet_process_id_t    srpc_peer;
 201         srpc_msg_t           srpc_replymsg;
 202         lnet_handle_md_t     srpc_replymdh;
 203         srpc_buffer_t       *srpc_reqstbuf;
 204         srpc_bulk_t         *srpc_bulk;
 205
 206         unsigned int         srpc_aborted; /* being given up */
 207         int                  srpc_status;
 208         void               (*srpc_done)(struct srpc_server_rpc *);
 209 } srpc_server_rpc_t;
 210
 211 /* client-side state of a RPC */
 212 typedef struct srpc_client_rpc {
 213         cfs_list_t           crpc_list;   /* chain on user's lists */
 214         cfs_spinlock_t       crpc_lock;   /* serialize */
 215         int                  crpc_service;
 216         cfs_atomic_t         crpc_refcount;
 217         int                  crpc_timeout; /* # seconds to wait for reply */
 218         stt_timer_t          crpc_timer;
 219         swi_workitem_t       crpc_wi;
 220         lnet_process_id_t    crpc_dest;
 221
 222         void               (*crpc_done)(struct srpc_client_rpc *);
 223         void               (*crpc_fini)(struct srpc_client_rpc *);
 224         int                  crpc_status;    /* completion status */
 225         void                *crpc_priv;      /* caller data */
 226
 227         /* state flags */
 228         unsigned int         crpc_aborted:1; /* being given up */
 229         unsigned int         crpc_closed:1;  /* completed */
 230
 231         /* RPC events */
 232         srpc_event_t         crpc_bulkev;    /* bulk event */
 233         srpc_event_t         crpc_reqstev;   /* request event */
 234         srpc_event_t         crpc_replyev;   /* reply event */
 235
 236         /* bulk, request(reqst), and reply exchanged on wire */
 237         srpc_msg_t           crpc_reqstmsg;
 238         srpc_msg_t           crpc_replymsg;
 239         lnet_handle_md_t     crpc_reqstmdh;
 240         lnet_handle_md_t     crpc_replymdh;
 241         srpc_bulk_t          crpc_bulk;
 242 } srpc_client_rpc_t;
 243
 244 #define srpc_client_rpc_size(rpc)                                       \
 245 offsetof(srpc_client_rpc_t, crpc_bulk.bk_iovs[(rpc)->crpc_bulk.bk_niov])
 246
 247 #define srpc_client_rpc_addref(rpc)                                     \
 248 do {                                                                    \
 249         CDEBUG(D_NET, "RPC[%p] -> %s (%d)++\n",                         \
 250                (rpc), libcfs_id2str((rpc)->crpc_dest),                  \
 251                cfs_atomic_read(&(rpc)->crpc_refcount));                 \
 252         LASSERT(cfs_atomic_read(&(rpc)->crpc_refcount) > 0);            \
 253         cfs_atomic_inc(&(rpc)->crpc_refcount);                          \
 254 } while (0)
 255
 256 #define srpc_client_rpc_decref(rpc)                                     \
 257 do {                                                                    \
 258         CDEBUG(D_NET, "RPC[%p] -> %s (%d)--\n",                         \
 259                (rpc), libcfs_id2str((rpc)->crpc_dest),                  \
 260                cfs_atomic_read(&(rpc)->crpc_refcount));                 \
 261         LASSERT(cfs_atomic_read(&(rpc)->crpc_refcount) > 0);            \
 262         if (cfs_atomic_dec_and_test(&(rpc)->crpc_refcount))             \
 263                 srpc_destroy_client_rpc(rpc);                           \
 264 } while (0)
 265
 266 #define srpc_event_pending(rpc)   ((rpc)->crpc_bulkev.ev_fired == 0 ||  \
 267                                    (rpc)->crpc_reqstev.ev_fired == 0 || \
 268                                    (rpc)->crpc_replyev.ev_fired == 0)
 269
 270 typedef struct srpc_service {
 271         int                sv_id;            /* service id */
 272         const char        *sv_name;          /* human readable name */
 273         int                sv_nprune;        /* # posted RPC to be pruned */
 274         int                sv_concur;        /* max # concurrent RPCs */
 275
 276         cfs_spinlock_t     sv_lock;
 277         int                sv_shuttingdown;
 278         srpc_event_t       sv_ev;            /* LNet event */
 279         int                sv_nposted_msg;   /* # posted message buffers */
 280         cfs_list_t         sv_free_rpcq;     /* free RPC descriptors */
 281         cfs_list_t         sv_active_rpcq;   /* in-flight RPCs */
 282         cfs_list_t         sv_posted_msgq;   /* posted message buffers */
 283         cfs_list_t         sv_blocked_msgq;  /* blocked for RPC descriptor */
 284
 285         /* Service callbacks:
 286          * - sv_handler: process incoming RPC request
 287          * - sv_bulk_ready: notify bulk data
 288          */
 289         int              (*sv_handler) (srpc_server_rpc_t *);
 290         int              (*sv_bulk_ready) (srpc_server_rpc_t *, int);
 291 } srpc_service_t;
 292
 293 #define SFW_POST_BUFFERS         256
 294 #define SFW_SERVICE_CONCURRENCY  (SFW_POST_BUFFERS/2)
 295
 296 typedef struct {
 297         cfs_list_t        sn_list;    /* chain on fw_zombie_sessions */
 298         lst_sid_t         sn_id;      /* unique identifier */
 299         unsigned int      sn_timeout; /* # seconds' inactivity to expire */
 300         int               sn_timer_active;
 301         stt_timer_t       sn_timer;
 302         cfs_list_t        sn_batches; /* list of batches */
 303         char              sn_name[LST_NAME_SIZE];
 304         cfs_atomic_t      sn_refcount;
 305         cfs_atomic_t      sn_brw_errors;
 306         cfs_atomic_t      sn_ping_errors;
 307         cfs_time_t        sn_started;
 308 } sfw_session_t;
 309
 310 #define sfw_sid_equal(sid0, sid1)     ((sid0).ses_nid == (sid1).ses_nid && \
 311                                        (sid0).ses_stamp == (sid1).ses_stamp)
 312
 313 typedef struct {
 314         cfs_list_t        bat_list;      /* chain on sn_batches */
 315         lst_bid_t         bat_id;        /* batch id */
 316         int               bat_error;     /* error code of batch */
 317         sfw_session_t    *bat_session;   /* batch's session */
 318         cfs_atomic_t      bat_nactive;   /* # of active tests */
 319         cfs_list_t        bat_tests;     /* test instances */
 320 } sfw_batch_t;
 321
 322 typedef struct {
 323         int  (*tso_init)(struct sfw_test_instance *tsi); /* intialize test client */
 324         void (*tso_fini)(struct sfw_test_instance *tsi); /* finalize test client */
 325         int  (*tso_prep_rpc)(struct sfw_test_unit *tsu,
 326                              lnet_process_id_t dest,
 327                              srpc_client_rpc_t **rpc);   /* prep a tests rpc */
 328         void (*tso_done_rpc)(struct sfw_test_unit *tsu,
 329                              srpc_client_rpc_t *rpc);    /* done a test rpc */
 330 } sfw_test_client_ops_t;
 331
 332 typedef struct sfw_test_instance {
 333         cfs_list_t              tsi_list;         /* chain on batch */
 334         int                     tsi_service;      /* test type */
 335         sfw_batch_t            *tsi_batch;        /* batch */
 336         sfw_test_client_ops_t  *tsi_ops;          /* test client operations */
 337
 338         /* public parameter for all test units */
 339         int                     tsi_is_client:1;     /* is test client */
 340         int                     tsi_stoptsu_onerr:1; /* stop tsu on error */
 341         int                     tsi_concur;          /* concurrency */
 342         int                     tsi_loop;            /* loop count */
 343
 344         /* status of test instance */
 345         cfs_spinlock_t          tsi_lock;         /* serialize */
 346         int                     tsi_stopping:1;   /* test is stopping */
 347         cfs_atomic_t            tsi_nactive;      /* # of active test unit */
 348         cfs_list_t              tsi_units;        /* test units */
 349         cfs_list_t              tsi_free_rpcs;    /* free rpcs */
 350         cfs_list_t              tsi_active_rpcs;  /* active rpcs */
 351
 352         union {
 353                 test_bulk_req_t bulk;             /* bulk parameter */
 354                 test_ping_req_t ping;             /* ping parameter */
 355         } tsi_u;
 356 } sfw_test_instance_t;
 357
 358 /* XXX: trailing (CFS_PAGE_SIZE % sizeof(lnet_process_id_t)) bytes at
 359  * the end of pages are not used */
 360 #define SFW_MAX_CONCUR     LST_MAX_CONCUR
 361 #define SFW_ID_PER_PAGE    (CFS_PAGE_SIZE / sizeof(lnet_process_id_packed_t))
 362 #define SFW_MAX_NDESTS     (LNET_MAX_IOV * SFW_ID_PER_PAGE)
 363 #define sfw_id_pages(n)    (((n) + SFW_ID_PER_PAGE - 1) / SFW_ID_PER_PAGE)
 364
 365 typedef struct sfw_test_unit {
 366         cfs_list_t            tsu_list;         /* chain on lst_test_instance */
 367         lnet_process_id_t     tsu_dest;         /* id of dest node */
 368         int                   tsu_loop;         /* loop count of the test */
 369         sfw_test_instance_t  *tsu_instance;     /* pointer to test instance */
 370         void                 *tsu_private;      /* private data */
 371         swi_workitem_t        tsu_worker;       /* workitem of the test unit */
 372 } sfw_test_unit_t;
 373
 374 typedef struct {
 375         cfs_list_t              tsc_list;         /* chain on fw_tests */
 376         srpc_service_t         *tsc_srv_service;  /* test service */
 377         sfw_test_client_ops_t  *tsc_cli_ops;      /* ops of test client */
 378 } sfw_test_case_t;
 379
 380 srpc_client_rpc_t *
 381 sfw_create_rpc(lnet_process_id_t peer, int service, int nbulkiov, int bulklen,
 382                void (*done) (srpc_client_rpc_t *), void *priv);
 383 int sfw_create_test_rpc(sfw_test_unit_t *tsu, lnet_process_id_t peer,
 384                         int nblk, int blklen, srpc_client_rpc_t **rpc);
 385 void sfw_abort_rpc(srpc_client_rpc_t *rpc);
 386 void sfw_post_rpc(srpc_client_rpc_t *rpc);
 387 void sfw_client_rpc_done(srpc_client_rpc_t *rpc);
 388 void sfw_unpack_message(srpc_msg_t *msg);
 389 void sfw_free_pages(srpc_server_rpc_t *rpc);
 390 void sfw_add_bulk_page(srpc_bulk_t *bk, cfs_page_t *pg, int i);
 391 int sfw_alloc_pages(srpc_server_rpc_t *rpc, int npages, int sink);
 392 int sfw_make_session (srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply);
 393
 394 srpc_client_rpc_t *
 395 srpc_create_client_rpc(lnet_process_id_t peer, int service,
 396                        int nbulkiov, int bulklen,
 397                        void (*rpc_done)(srpc_client_rpc_t *),
 398                        void (*rpc_fini)(srpc_client_rpc_t *), void *priv);
 399 void srpc_post_rpc(srpc_client_rpc_t *rpc);
 400 void srpc_abort_rpc(srpc_client_rpc_t *rpc, int why);
 401 void srpc_free_bulk(srpc_bulk_t *bk);
 402 srpc_bulk_t *srpc_alloc_bulk(int npages, int sink);
 403 int srpc_send_rpc(swi_workitem_t *wi);
 404 int srpc_send_reply(srpc_server_rpc_t *rpc);
 405 int srpc_add_service(srpc_service_t *sv);
 406 int srpc_remove_service(srpc_service_t *sv);
 407 void srpc_shutdown_service(srpc_service_t *sv);
 408 void srpc_abort_service(srpc_service_t *sv);
 409 int srpc_finish_service(srpc_service_t *sv);
 410 int srpc_service_add_buffers(srpc_service_t *sv, int nbuffer);
 411 void srpc_service_remove_buffers(srpc_service_t *sv, int nbuffer);
 412 void srpc_get_counters(srpc_counters_t *cnt);
 413 void srpc_set_counters(const srpc_counters_t *cnt);
 414
 415 static inline int
 416 swi_wi_action(cfs_workitem_t *wi)
 417 {
 418         swi_workitem_t *swi = container_of(wi, swi_workitem_t, swi_workitem);
 419
 420         return swi->swi_action(swi);
 421 }
 422
 423 static inline void
 424 swi_init_workitem (swi_workitem_t *swi, void *data,
 425                    swi_action_t action, short sched_id)
 426 {
 427         swi->swi_action = action;
 428         swi->swi_state  = SWI_STATE_NEWBORN;
 429         cfs_wi_init(&swi->swi_workitem, data, swi_wi_action, sched_id);
 430 }
 431
 432 static inline void
 433 swi_schedule_workitem(swi_workitem_t *wi)
 434 {
 435         cfs_wi_schedule(&wi->swi_workitem);
 436 }
 437
 438 static inline void
 439 swi_kill_workitem(swi_workitem_t *swi)
 440 {
 441         cfs_wi_exit(&swi->swi_workitem);
 442 }
 443
 444 #ifndef __KERNEL__
 445 static inline int
 446 swi_check_events(void)
 447 {
 448         return cfs_wi_check_events();
 449 }
 450 #endif
 451
 452 int sfw_startup(void);
 453 int srpc_startup(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 (cfs_atomic_read(&rpc->crpc_refcount) == 0);
 463 #ifndef __KERNEL__
 464         LASSERT (rpc->crpc_bulk.bk_pages == NULL);
 465 #endif
 466
 467         if (rpc->crpc_fini == NULL) {
 468                 LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc));
 469         } else {
 470                 (*rpc->crpc_fini) (rpc);
 471         }
 472
 473         return;
 474 }
 475
 476 static inline void
 477 srpc_init_client_rpc (srpc_client_rpc_t *rpc, lnet_process_id_t peer,
 478                       int service, int nbulkiov, int bulklen,
 479                       void (*rpc_done)(srpc_client_rpc_t *),
 480                       void (*rpc_fini)(srpc_client_rpc_t *), void *priv)
 481 {
 482         LASSERT (nbulkiov <= LNET_MAX_IOV);
 483
 484         memset(rpc, 0, offsetof(srpc_client_rpc_t,
 485                                 crpc_bulk.bk_iovs[nbulkiov]));
 486
 487         CFS_INIT_LIST_HEAD(&rpc->crpc_list);
 488         swi_init_workitem(&rpc->crpc_wi, rpc, srpc_send_rpc,
 489                           CFS_WI_SCHED_ANY);
 490         cfs_spin_lock_init(&rpc->crpc_lock);
 491         cfs_atomic_set(&rpc->crpc_refcount, 1); /* 1 ref for caller */
 492
 493         rpc->crpc_dest         = peer;
 494         rpc->crpc_priv         = priv;
 495         rpc->crpc_service      = service;
 496         rpc->crpc_bulk.bk_len  = bulklen;
 497         rpc->crpc_bulk.bk_niov = nbulkiov;
 498         rpc->crpc_done         = rpc_done;
 499         rpc->crpc_fini         = rpc_fini;
 500         LNetInvalidateHandle(&rpc->crpc_reqstmdh);
 501         LNetInvalidateHandle(&rpc->crpc_replymdh);
 502         LNetInvalidateHandle(&rpc->crpc_bulk.bk_mdh);
 503
 504         /* no event is expected at this point */
 505         rpc->crpc_bulkev.ev_fired  =
 506         rpc->crpc_reqstev.ev_fired =
 507         rpc->crpc_replyev.ev_fired = 1;
 508
 509         rpc->crpc_reqstmsg.msg_magic   = SRPC_MSG_MAGIC;
 510         rpc->crpc_reqstmsg.msg_version = SRPC_MSG_VERSION;
 511         rpc->crpc_reqstmsg.msg_type    = srpc_service2request(service);
 512         return;
 513 }
 514
 515 static inline const char *
 516 swi_state2str (int state)
 517 {
 518 #define STATE2STR(x) case x: return #x
 519         switch(state) {
 520                 default:
 521                         LBUG();
 522                 STATE2STR(SWI_STATE_NEWBORN);
 523                 STATE2STR(SWI_STATE_REPLY_SUBMITTED);
 524                 STATE2STR(SWI_STATE_REPLY_SENT);
 525                 STATE2STR(SWI_STATE_REQUEST_SUBMITTED);
 526                 STATE2STR(SWI_STATE_REQUEST_SENT);
 527                 STATE2STR(SWI_STATE_REPLY_RECEIVED);
 528                 STATE2STR(SWI_STATE_BULK_STARTED);
 529                 STATE2STR(SWI_STATE_DONE);
 530         }
 531 #undef STATE2STR
 532 }
 533
 534 #define UNUSED(x)       ( (void)(x) )
 535
 536 #ifndef __KERNEL__
 537
 538 int stt_poll_interval(void);
 539 int sfw_session_removed(void);
 540
 541 int stt_check_events(void);
 542 int srpc_check_event(int timeout);
 543
 544 int lnet_selftest_init(void);
 545 void lnet_selftest_fini(void);
 546 int selftest_wait_events(void);
 547
 548 #else
 549
 550 #define selftest_wait_events()    cfs_pause(cfs_time_seconds(1))
 551
 552 #endif
 553
 554 #define lst_wait_until(cond, lock, fmt, ...)                            \
 555 do {                                                                    \
 556         int __I = 2;                                                    \
 557         while (!(cond)) {                                               \
 558                 CDEBUG(IS_PO2(++__I) ? D_WARNING : D_NET,               \
 559                        fmt, ## __VA_ARGS__);                            \
 560                 cfs_spin_unlock(&(lock));                               \
 561                                                                         \
 562                 selftest_wait_events();                                 \
 563                                                                         \
 564                 cfs_spin_lock(&(lock));                                 \
 565         }                                                               \
 566 } while (0)
 567
 568 static inline void
 569 srpc_wait_service_shutdown (srpc_service_t *sv)
 570 {
 571         int i = 2;
 572
 573         cfs_spin_lock(&sv->sv_lock);
 574         LASSERT (sv->sv_shuttingdown);
 575         cfs_spin_unlock(&sv->sv_lock);
 576
 577         while (srpc_finish_service(sv) == 0) {
 578                 i++;
 579                 CDEBUG (((i & -i) == i) ? D_WARNING : D_NET,
 580                         "Waiting for %s service to shutdown...\n",
 581                         sv->sv_name);
 582                 selftest_wait_events();
 583         }
 584 }
 585
 586 #endif /* __SELFTEST_SELFTEST_H__ */