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.gnu.org/licenses/gpl-2.0.html
  19  *
  20  * GPL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Use is subject to license terms.
  25  *
  26  * Copyright (c) 2012, 2013, Intel Corporation.
  27  */
  28 /*
  29  * This file is part of Lustre, http://www.lustre.org/
  30  * Lustre is a trademark of Sun Microsystems, Inc.
  31  *
  32  * lnet/selftest/selftest.h
  33  *
  34  * Author: Isaac Huang <isaac@clusterfs.com>
  35  */
  36 #ifndef __SELFTEST_SELFTEST_H__
  37 #define __SELFTEST_SELFTEST_H__
  38
  39 #define LNET_ONLY
  40
  41 #include <libcfs/libcfs.h>
  42 #include <lnet/api.h>
  43 #include <lnet/lib-lnet.h>
  44 #include <lnet/lib-types.h>
  45 #include <lnet/lnetst.h>
  46
  47 #include "rpc.h"
  48 #include "timer.h"
  49
  50 #ifndef MADE_WITHOUT_COMPROMISE
  51 #define MADE_WITHOUT_COMPROMISE
  52 #endif
  53
  54
  55 #define SWI_STATE_NEWBORN                  0
  56 #define SWI_STATE_REPLY_SUBMITTED          1
  57 #define SWI_STATE_REPLY_SENT               2
  58 #define SWI_STATE_REQUEST_SUBMITTED        3
  59 #define SWI_STATE_REQUEST_SENT             4
  60 #define SWI_STATE_REPLY_RECEIVED           5
  61 #define SWI_STATE_BULK_STARTED             6
  62 #define SWI_STATE_DONE                     10
  63
  64 /* forward refs */
  65 struct srpc_service;
  66 struct srpc_service_cd;
  67 struct sfw_test_unit;
  68 struct sfw_test_instance;
  69
  70 /* services below SRPC_FRAMEWORK_SERVICE_MAX_ID are framework
  71  * services, e.g. create/modify session.
  72  */
  73 #define SRPC_SERVICE_DEBUG              0
  74 #define SRPC_SERVICE_MAKE_SESSION       1
  75 #define SRPC_SERVICE_REMOVE_SESSION     2
  76 #define SRPC_SERVICE_BATCH              3
  77 #define SRPC_SERVICE_TEST               4
  78 #define SRPC_SERVICE_QUERY_STAT         5
  79 #define SRPC_SERVICE_JOIN               6
  80 #define SRPC_FRAMEWORK_SERVICE_MAX_ID   10
  81 /* other services start from SRPC_FRAMEWORK_SERVICE_MAX_ID+1 */
  82 #define SRPC_SERVICE_BRW                11
  83 #define SRPC_SERVICE_PING               12
  84 #define SRPC_SERVICE_MAX_ID             12
  85
  86 #define SRPC_REQUEST_PORTAL             50
  87 /* a lazy portal for framework RPC requests */
  88 #define SRPC_FRAMEWORK_REQUEST_PORTAL   51
  89 /* all reply/bulk RDMAs go to this portal */
  90 #define SRPC_RDMA_PORTAL                52
  91
  92 static inline srpc_msg_type_t
  93 srpc_service2request (int service)
  94 {
  95         switch (service) {
  96         default:
  97                 LBUG ();
  98         case SRPC_SERVICE_DEBUG:
  99                 return SRPC_MSG_DEBUG_REQST;
 100
 101         case SRPC_SERVICE_MAKE_SESSION:
 102                 return SRPC_MSG_MKSN_REQST;
 103
 104         case SRPC_SERVICE_REMOVE_SESSION:
 105                 return SRPC_MSG_RMSN_REQST;
 106
 107         case SRPC_SERVICE_BATCH:
 108                 return SRPC_MSG_BATCH_REQST;
 109
 110         case SRPC_SERVICE_TEST:
 111                 return SRPC_MSG_TEST_REQST;
 112
 113         case SRPC_SERVICE_QUERY_STAT:
 114                 return SRPC_MSG_STAT_REQST;
 115
 116         case SRPC_SERVICE_BRW:
 117                 return SRPC_MSG_BRW_REQST;
 118
 119         case SRPC_SERVICE_PING:
 120                 return SRPC_MSG_PING_REQST;
 121
 122         case SRPC_SERVICE_JOIN:
 123                 return SRPC_MSG_JOIN_REQST;
 124         }
 125 }
 126
 127 static inline srpc_msg_type_t
 128 srpc_service2reply (int service)
 129 {
 130         return srpc_service2request(service) + 1;
 131 }
 132
 133 typedef enum {
 134         SRPC_BULK_REQ_RCVD   = 1, /* passive bulk request(PUT sink/GET source) received */
 135         SRPC_BULK_PUT_SENT   = 2, /* active bulk PUT sent (source) */
 136         SRPC_BULK_GET_RPLD   = 3, /* active bulk GET replied (sink) */
 137         SRPC_REPLY_RCVD      = 4, /* incoming reply received */
 138         SRPC_REPLY_SENT      = 5, /* outgoing reply sent */
 139         SRPC_REQUEST_RCVD    = 6, /* incoming request received */
 140         SRPC_REQUEST_SENT    = 7, /* outgoing request sent */
 141 } srpc_event_type_t;
 142
 143 /* RPC event */
 144 typedef struct {
 145         srpc_event_type_t ev_type;   /* what's up */
 146         lnet_event_kind_t ev_lnet;   /* LNet event type */
 147         int               ev_fired;  /* LNet event fired? */
 148         int               ev_status; /* LNet event status */
 149         void             *ev_data;   /* owning server/client RPC */
 150 } srpc_event_t;
 151
 152 typedef struct {
 153         int              bk_len;  /* len of bulk data */
 154         lnet_handle_md_t bk_mdh;
 155         int              bk_sink; /* sink/source */
 156         int              bk_niov; /* # iov in bk_iovs */
 157         lnet_kiov_t      bk_iovs[0];
 158 } srpc_bulk_t; /* bulk descriptor */
 159
 160 /* message buffer descriptor */
 161 typedef struct srpc_buffer {
 162         struct list_head        buf_list; /* chain on srpc_service::*_msgq */
 163         srpc_msg_t              buf_msg;
 164         lnet_handle_md_t        buf_mdh;
 165         lnet_nid_t              buf_self;
 166         lnet_process_id_t       buf_peer;
 167 } srpc_buffer_t;
 168
 169 struct swi_workitem;
 170 typedef int (*swi_action_t) (struct swi_workitem *);
 171
 172 typedef struct swi_workitem {
 173         struct cfs_wi_sched     *swi_sched;
 174         struct cfs_workitem       swi_workitem;
 175         swi_action_t         swi_action;
 176         int                  swi_state;
 177 } swi_workitem_t;
 178
 179 /* server-side state of a RPC */
 180 typedef struct srpc_server_rpc {
 181         /* chain on srpc_service::*_rpcq */
 182         struct list_head        srpc_list;
 183         struct srpc_service_cd *srpc_scd;
 184         swi_workitem_t          srpc_wi;
 185         srpc_event_t            srpc_ev;        /* bulk/reply event */
 186         lnet_nid_t              srpc_self;
 187         lnet_process_id_t       srpc_peer;
 188         srpc_msg_t              srpc_replymsg;
 189         lnet_handle_md_t        srpc_replymdh;
 190         srpc_buffer_t           *srpc_reqstbuf;
 191         srpc_bulk_t             *srpc_bulk;
 192
 193         unsigned int    srpc_aborted; /* being given up */
 194         int             srpc_status;
 195         void            (*srpc_done)(struct srpc_server_rpc *);
 196 } srpc_server_rpc_t;
 197
 198 /* client-side state of a RPC */
 199 typedef struct srpc_client_rpc {
 200         struct list_head        crpc_list;      /* chain on user's lists */
 201         spinlock_t              crpc_lock;      /* serialize */
 202         int                     crpc_service;
 203         atomic_t                crpc_refcount;
 204         /* # seconds to wait for reply */
 205         int                     crpc_timeout;
 206         stt_timer_t             crpc_timer;
 207         swi_workitem_t          crpc_wi;
 208         lnet_process_id_t       crpc_dest;
 209
 210         void               (*crpc_done)(struct srpc_client_rpc *);
 211         void               (*crpc_fini)(struct srpc_client_rpc *);
 212         int                  crpc_status;    /* completion status */
 213         void                *crpc_priv;      /* caller data */
 214
 215         /* state flags */
 216         unsigned int         crpc_aborted:1; /* being given up */
 217         unsigned int         crpc_closed:1;  /* completed */
 218
 219         /* RPC events */
 220         srpc_event_t         crpc_bulkev;    /* bulk event */
 221         srpc_event_t         crpc_reqstev;   /* request event */
 222         srpc_event_t         crpc_replyev;   /* reply event */
 223
 224         /* bulk, request(reqst), and reply exchanged on wire */
 225         srpc_msg_t           crpc_reqstmsg;
 226         srpc_msg_t           crpc_replymsg;
 227         lnet_handle_md_t     crpc_reqstmdh;
 228         lnet_handle_md_t     crpc_replymdh;
 229         srpc_bulk_t          crpc_bulk;
 230 } srpc_client_rpc_t;
 231
 232 #define srpc_client_rpc_size(rpc)                                       \
 233 offsetof(srpc_client_rpc_t, crpc_bulk.bk_iovs[(rpc)->crpc_bulk.bk_niov])
 234
 235 #define srpc_client_rpc_addref(rpc)                                     \
 236 do {                                                                    \
 237         CDEBUG(D_NET, "RPC[%p] -> %s (%d)++\n",                         \
 238                (rpc), libcfs_id2str((rpc)->crpc_dest),                  \
 239                atomic_read(&(rpc)->crpc_refcount));                 \
 240         LASSERT(atomic_read(&(rpc)->crpc_refcount) > 0);            \
 241         atomic_inc(&(rpc)->crpc_refcount);                          \
 242 } while (0)
 243
 244 #define srpc_client_rpc_decref(rpc)                                     \
 245 do {                                                                    \
 246         CDEBUG(D_NET, "RPC[%p] -> %s (%d)--\n",                         \
 247                (rpc), libcfs_id2str((rpc)->crpc_dest),                  \
 248                atomic_read(&(rpc)->crpc_refcount));                 \
 249         LASSERT(atomic_read(&(rpc)->crpc_refcount) > 0);            \
 250         if (atomic_dec_and_test(&(rpc)->crpc_refcount))             \
 251                 srpc_destroy_client_rpc(rpc);                           \
 252 } while (0)
 253
 254 #define srpc_event_pending(rpc)   ((rpc)->crpc_bulkev.ev_fired == 0 ||  \
 255                                    (rpc)->crpc_reqstev.ev_fired == 0 || \
 256                                    (rpc)->crpc_replyev.ev_fired == 0)
 257
 258 /* CPU partition data of srpc service */
 259 struct srpc_service_cd {
 260         /** serialize */
 261         spinlock_t              scd_lock;
 262         /** backref to service */
 263         struct srpc_service     *scd_svc;
 264         /** event buffer */
 265         srpc_event_t            scd_ev;
 266         /** free RPC descriptors */
 267         struct list_head        scd_rpc_free;
 268         /** in-flight RPCs */
 269         struct list_head        scd_rpc_active;
 270         /** workitem for posting buffer */
 271         swi_workitem_t          scd_buf_wi;
 272         /** CPT id */
 273         int                     scd_cpt;
 274         /** error code for scd_buf_wi */
 275         int                     scd_buf_err;
 276         /** timestamp for scd_buf_err */
 277         unsigned long           scd_buf_err_stamp;
 278         /** total # request buffers */
 279         int                     scd_buf_total;
 280         /** # posted request buffers */
 281         int                     scd_buf_nposted;
 282         /** in progress of buffer posting */
 283         int                     scd_buf_posting;
 284         /** allocate more buffers if scd_buf_nposted < scd_buf_low */
 285         int                     scd_buf_low;
 286         /** increase/decrease some buffers */
 287         int                     scd_buf_adjust;
 288         /** posted message buffers */
 289         struct list_head        scd_buf_posted;
 290         /** blocked for RPC descriptor */
 291         struct list_head        scd_buf_blocked;
 292 };
 293
 294 /* number of server workitems (mini-thread) for testing service */
 295 #define SFW_TEST_WI_MIN         256
 296 #define SFW_TEST_WI_MAX         2048
 297 /* extra buffers for tolerating buggy peers, or unbalanced number
 298  * of peers between partitions  */
 299 #define SFW_TEST_WI_EXTRA       64
 300
 301 /* number of server workitems (mini-thread) for framework service */
 302 #define SFW_FRWK_WI_MIN         16
 303 #define SFW_FRWK_WI_MAX         256
 304
 305 typedef struct srpc_service {
 306         int                     sv_id;          /* service id */
 307         const char              *sv_name;       /* human readable name */
 308         int                     sv_wi_total;    /* total server workitems */
 309         int                     sv_shuttingdown;
 310         int                     sv_ncpts;
 311         /* percpt data for srpc_service */
 312         struct srpc_service_cd  **sv_cpt_data;
 313         /* Service callbacks:
 314          * - sv_handler: process incoming RPC request
 315          * - sv_bulk_ready: notify bulk data
 316          */
 317         int              (*sv_handler) (srpc_server_rpc_t *);
 318         int              (*sv_bulk_ready) (srpc_server_rpc_t *, int);
 319 } srpc_service_t;
 320
 321 typedef struct {
 322         /* chain on fw_zombie_sessions */
 323         struct list_head        sn_list;
 324         lst_sid_t               sn_id;          /* unique identifier */
 325         /* # seconds' inactivity to expire */
 326         unsigned int            sn_timeout;
 327         int                     sn_timer_active;
 328         unsigned int            sn_features;
 329         stt_timer_t             sn_timer;
 330         struct list_head        sn_batches;     /* list of batches */
 331         char                    sn_name[LST_NAME_SIZE];
 332         atomic_t                sn_refcount;
 333         atomic_t                sn_brw_errors;
 334         atomic_t                sn_ping_errors;
 335         cfs_time_t              sn_started;
 336 } sfw_session_t;
 337
 338 #define sfw_sid_equal(sid0, sid1)     ((sid0).ses_nid == (sid1).ses_nid && \
 339                                        (sid0).ses_stamp == (sid1).ses_stamp)
 340
 341 typedef struct {
 342         struct list_head        bat_list;       /* chain on sn_batches */
 343         lst_bid_t               bat_id;         /* batch id */
 344         int                     bat_error;      /* error code of batch */
 345         sfw_session_t           *bat_session;   /* batch's session */
 346         atomic_t                bat_nactive;    /* # of active tests */
 347         struct list_head        bat_tests;      /* test instances */
 348 } sfw_batch_t;
 349
 350 typedef struct {
 351         int  (*tso_init)(struct sfw_test_instance *tsi); /* intialize test client */
 352         void (*tso_fini)(struct sfw_test_instance *tsi); /* finalize test client */
 353         int  (*tso_prep_rpc)(struct sfw_test_unit *tsu,
 354                              lnet_process_id_t dest,
 355                              srpc_client_rpc_t **rpc);   /* prep a tests rpc */
 356         void (*tso_done_rpc)(struct sfw_test_unit *tsu,
 357                              srpc_client_rpc_t *rpc);    /* done a test rpc */
 358 } sfw_test_client_ops_t;
 359
 360 typedef struct sfw_test_instance {
 361         struct list_head        tsi_list;       /* chain on batch */
 362         int                     tsi_service;    /* test type */
 363         sfw_batch_t             *tsi_batch;     /* batch */
 364         sfw_test_client_ops_t   *tsi_ops;       /* test client operations */
 365
 366         /* public parameter for all test units */
 367         unsigned int            tsi_is_client:1;     /* is test client */
 368         unsigned int            tsi_stoptsu_onerr:1; /* stop tsu on error */
 369         int                     tsi_concur;          /* concurrency */
 370         int                     tsi_loop;            /* loop count */
 371
 372         /* status of test instance */
 373         spinlock_t              tsi_lock;       /* serialize */
 374         unsigned int            tsi_stopping:1; /* test is stopping */
 375         atomic_t                tsi_nactive;    /* # of active test unit */
 376         struct list_head        tsi_units;      /* test units */
 377         struct list_head        tsi_free_rpcs;  /* free rpcs */
 378         struct list_head        tsi_active_rpcs;/* active rpcs */
 379
 380         union {
 381                 test_ping_req_t         ping;     /* ping parameter */
 382                 test_bulk_req_t         bulk_v0;  /* bulk parameter */
 383                 test_bulk_req_v1_t      bulk_v1;  /* bulk v1 parameter */
 384         } tsi_u;
 385 } sfw_test_instance_t;
 386
 387 /* XXX: trailing (PAGE_SIZE % sizeof(lnet_process_id_t)) bytes at
 388  * the end of pages are not used */
 389 #define SFW_MAX_CONCUR     LST_MAX_CONCUR
 390 #define SFW_ID_PER_PAGE    (PAGE_SIZE / sizeof(lnet_process_id_packed_t))
 391 #define SFW_MAX_NDESTS     (LNET_MAX_IOV * SFW_ID_PER_PAGE)
 392 #define sfw_id_pages(n)    (((n) + SFW_ID_PER_PAGE - 1) / SFW_ID_PER_PAGE)
 393
 394 typedef struct sfw_test_unit {
 395         struct list_head        tsu_list;       /* chain on lst_test_instance */
 396         lnet_process_id_t       tsu_dest;       /* id of dest node */
 397         int                     tsu_loop;       /* loop count of the test */
 398         sfw_test_instance_t     *tsu_instance;  /* pointer to test instance */
 399         void                    *tsu_private;   /* private data */
 400         swi_workitem_t          tsu_worker;     /* workitem of the test unit */
 401 } sfw_test_unit_t;
 402
 403 typedef struct sfw_test_case {
 404         struct list_head        tsc_list;               /* chain on fw_tests */
 405         srpc_service_t          *tsc_srv_service;       /* test service */
 406         sfw_test_client_ops_t   *tsc_cli_ops;           /* ops of test client */
 407 } sfw_test_case_t;
 408
 409 srpc_client_rpc_t *
 410 sfw_create_rpc(lnet_process_id_t peer, int service,
 411                unsigned features, int nbulkiov, int bulklen,
 412                void (*done) (srpc_client_rpc_t *), void *priv);
 413 int sfw_create_test_rpc(sfw_test_unit_t *tsu,
 414                         lnet_process_id_t peer, unsigned features,
 415                         int nblk, int blklen, srpc_client_rpc_t **rpc);
 416 void sfw_abort_rpc(srpc_client_rpc_t *rpc);
 417 void sfw_post_rpc(srpc_client_rpc_t *rpc);
 418 void sfw_client_rpc_done(srpc_client_rpc_t *rpc);
 419 void sfw_unpack_message(srpc_msg_t *msg);
 420 void sfw_free_pages(srpc_server_rpc_t *rpc);
 421 void sfw_add_bulk_page(srpc_bulk_t *bk, struct page *pg, int i);
 422 int sfw_alloc_pages(srpc_server_rpc_t *rpc, int cpt, int npages, int len,
 423                     int sink);
 424 int sfw_make_session (srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply);
 425
 426 srpc_client_rpc_t *
 427 srpc_create_client_rpc(lnet_process_id_t peer, int service,
 428                        int nbulkiov, int bulklen,
 429                        void (*rpc_done)(srpc_client_rpc_t *),
 430                        void (*rpc_fini)(srpc_client_rpc_t *), void *priv);
 431 void srpc_post_rpc(srpc_client_rpc_t *rpc);
 432 void srpc_abort_rpc(srpc_client_rpc_t *rpc, int why);
 433 void srpc_free_bulk(srpc_bulk_t *bk);
 434 srpc_bulk_t *srpc_alloc_bulk(int cpt, unsigned off, unsigned bulk_npg,
 435                              unsigned bulk_len, 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 void srpc_abort_service(srpc_service_t *sv);
 442 int srpc_finish_service(srpc_service_t *sv);
 443 int srpc_service_add_buffers(srpc_service_t *sv, int nbuffer);
 444 void srpc_service_remove_buffers(srpc_service_t *sv, int nbuffer);
 445 void srpc_get_counters(srpc_counters_t *cnt);
 446 void srpc_set_counters(const srpc_counters_t *cnt);
 447
 448 extern struct cfs_wi_sched *lst_sched_serial;
 449 extern struct cfs_wi_sched **lst_sched_test;
 450
 451 static inline int
 452 srpc_serv_is_framework(struct srpc_service *svc)
 453 {
 454         return svc->sv_id < SRPC_FRAMEWORK_SERVICE_MAX_ID;
 455 }
 456
 457 static inline int
 458 swi_wi_action(struct cfs_workitem *wi)
 459 {
 460         swi_workitem_t *swi = container_of(wi, swi_workitem_t, swi_workitem);
 461
 462         return swi->swi_action(swi);
 463 }
 464
 465 static inline void
 466 swi_init_workitem(swi_workitem_t *swi, void *data,
 467                   swi_action_t action, struct cfs_wi_sched *sched)
 468 {
 469         swi->swi_sched  = sched;
 470         swi->swi_action = action;
 471         swi->swi_state  = SWI_STATE_NEWBORN;
 472         cfs_wi_init(&swi->swi_workitem, data, swi_wi_action);
 473 }
 474
 475 static inline void
 476 swi_schedule_workitem(swi_workitem_t *wi)
 477 {
 478         cfs_wi_schedule(wi->swi_sched, &wi->swi_workitem);
 479 }
 480
 481 static inline void
 482 swi_exit_workitem(swi_workitem_t *swi)
 483 {
 484         cfs_wi_exit(swi->swi_sched, &swi->swi_workitem);
 485 }
 486
 487 static inline int
 488 swi_deschedule_workitem(swi_workitem_t *swi)
 489 {
 490         return cfs_wi_deschedule(swi->swi_sched, &swi->swi_workitem);
 491 }
 492
 493 int sfw_startup(void);
 494 int srpc_startup(void);
 495 void sfw_shutdown(void);
 496 void srpc_shutdown(void);
 497
 498 static inline void
 499 srpc_destroy_client_rpc (srpc_client_rpc_t *rpc)
 500 {
 501         LASSERT (rpc != NULL);
 502         LASSERT (!srpc_event_pending(rpc));
 503         LASSERT (atomic_read(&rpc->crpc_refcount) == 0);
 504
 505         if (rpc->crpc_fini == NULL) {
 506                 LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc));
 507         } else {
 508                 (*rpc->crpc_fini) (rpc);
 509         }
 510
 511         return;
 512 }
 513
 514 static inline void
 515 srpc_init_client_rpc(srpc_client_rpc_t *rpc, lnet_process_id_t peer,
 516                      int service, int nbulkiov, int bulklen,
 517                      void (*rpc_done)(srpc_client_rpc_t *),
 518                      void (*rpc_fini)(srpc_client_rpc_t *), void *priv)
 519 {
 520         LASSERT(nbulkiov <= LNET_MAX_IOV);
 521
 522         memset(rpc, 0, offsetof(srpc_client_rpc_t,
 523                                 crpc_bulk.bk_iovs[nbulkiov]));
 524
 525         INIT_LIST_HEAD(&rpc->crpc_list);
 526         swi_init_workitem(&rpc->crpc_wi, rpc, srpc_send_rpc,
 527                           lst_sched_test[lnet_cpt_of_nid(peer.nid)]);
 528         spin_lock_init(&rpc->crpc_lock);
 529         atomic_set(&rpc->crpc_refcount, 1); /* 1 ref for caller */
 530
 531         rpc->crpc_dest         = peer;
 532         rpc->crpc_priv         = priv;
 533         rpc->crpc_service      = service;
 534         rpc->crpc_bulk.bk_len  = bulklen;
 535         rpc->crpc_bulk.bk_niov = nbulkiov;
 536         rpc->crpc_done         = rpc_done;
 537         rpc->crpc_fini         = rpc_fini;
 538         LNetInvalidateHandle(&rpc->crpc_reqstmdh);
 539         LNetInvalidateHandle(&rpc->crpc_replymdh);
 540         LNetInvalidateHandle(&rpc->crpc_bulk.bk_mdh);
 541
 542         /* no event is expected at this point */
 543         rpc->crpc_bulkev.ev_fired  =
 544         rpc->crpc_reqstev.ev_fired =
 545         rpc->crpc_replyev.ev_fired = 1;
 546
 547         rpc->crpc_reqstmsg.msg_magic   = SRPC_MSG_MAGIC;
 548         rpc->crpc_reqstmsg.msg_version = SRPC_MSG_VERSION;
 549         rpc->crpc_reqstmsg.msg_type    = srpc_service2request(service);
 550         return;
 551 }
 552
 553 static inline const char *
 554 swi_state2str (int state)
 555 {
 556 #define STATE2STR(x) case x: return #x
 557         switch(state) {
 558                 default:
 559                         LBUG();
 560                 STATE2STR(SWI_STATE_NEWBORN);
 561                 STATE2STR(SWI_STATE_REPLY_SUBMITTED);
 562                 STATE2STR(SWI_STATE_REPLY_SENT);
 563                 STATE2STR(SWI_STATE_REQUEST_SUBMITTED);
 564                 STATE2STR(SWI_STATE_REQUEST_SENT);
 565                 STATE2STR(SWI_STATE_REPLY_RECEIVED);
 566                 STATE2STR(SWI_STATE_BULK_STARTED);
 567                 STATE2STR(SWI_STATE_DONE);
 568         }
 569 #undef STATE2STR
 570 }
 571
 572 #define lst_wait_until(cond, lock, fmt, ...)                            \
 573 do {                                                                    \
 574         int __I = 2;                                                    \
 575         while (!(cond)) {                                               \
 576                 CDEBUG(IS_PO2(++__I) ? D_WARNING : D_NET,               \
 577                        fmt, ## __VA_ARGS__);                            \
 578                 spin_unlock(&(lock));                                   \
 579                                                                         \
 580                 set_current_state(TASK_UNINTERRUPTIBLE);                \
 581                 schedule_timeout(cfs_time_seconds(1) / 10);             \
 582                                                                         \
 583                 spin_lock(&(lock));                                     \
 584         }                                                               \
 585 } while (0)
 586
 587 static inline void
 588 srpc_wait_service_shutdown(srpc_service_t *sv)
 589 {
 590         int i = 2;
 591
 592         LASSERT(sv->sv_shuttingdown);
 593
 594         while (srpc_finish_service(sv) == 0) {
 595                 i++;
 596                 CDEBUG(((i & -i) == i) ? D_WARNING : D_NET,
 597                        "Waiting for %s service to shutdown...\n",
 598                        sv->sv_name);
 599                 set_current_state(TASK_UNINTERRUPTIBLE);
 600                 schedule_timeout(cfs_time_seconds(1) / 10);
 601         }
 602 }
 603
 604 extern sfw_test_client_ops_t ping_test_client;
 605 extern srpc_service_t        ping_test_service;
 606 void ping_init_test_client(void);
 607 void ping_init_test_service(void);
 608
 609 extern sfw_test_client_ops_t brw_test_client;
 610 extern srpc_service_t        brw_test_service;
 611 void brw_init_test_client(void);
 612 void brw_init_test_service(void);
 613
 614 #endif /* __SELFTEST_SELFTEST_H__ */