kernel/drivers/staging/lustre/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  * Copyright (c) 2012, Intel Corporation.
  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 #include "../../include/linux/libcfs/libcfs.h"
  47 #include "../../include/linux/lnet/lnet.h"
  48 #include "../../include/linux/lnet/lib-lnet.h"
  49 #include "../../include/linux/lnet/lib-types.h"
  50 #include "../../include/linux/lnet/lnetst.h"
  51
  52 #include "rpc.h"
  53 #include "timer.h"
  54
  55 #ifndef MADE_WITHOUT_COMPROMISE
  56 #define MADE_WITHOUT_COMPROMISE
  57 #endif
  58
  59 #define SWI_STATE_NEWBORN           0
  60 #define SWI_STATE_REPLY_SUBMITTED   1
  61 #define SWI_STATE_REPLY_SENT        2
  62 #define SWI_STATE_REQUEST_SUBMITTED 3
  63 #define SWI_STATE_REQUEST_SENT      4
  64 #define SWI_STATE_REPLY_RECEIVED    5
  65 #define SWI_STATE_BULK_STARTED      6
  66 #define SWI_STATE_DONE             10
  67
  68 /* forward refs */
  69 struct srpc_service;
  70 struct srpc_service_cd;
  71 struct sfw_test_unit;
  72 struct sfw_test_instance;
  73
  74 /* services below SRPC_FRAMEWORK_SERVICE_MAX_ID are framework
  75  * services, e.g. create/modify session.
  76  */
  77 #define SRPC_SERVICE_DEBUG             0
  78 #define SRPC_SERVICE_MAKE_SESSION      1
  79 #define SRPC_SERVICE_REMOVE_SESSION    2
  80 #define SRPC_SERVICE_BATCH             3
  81 #define SRPC_SERVICE_TEST              4
  82 #define SRPC_SERVICE_QUERY_STAT        5
  83 #define SRPC_SERVICE_JOIN              6
  84 #define SRPC_FRAMEWORK_SERVICE_MAX_ID 10
  85 /* other services start from SRPC_FRAMEWORK_SERVICE_MAX_ID+1 */
  86 #define SRPC_SERVICE_BRW              11
  87 #define SRPC_SERVICE_PING             12
  88 #define SRPC_SERVICE_MAX_ID           12
  89
  90 #define SRPC_REQUEST_PORTAL           50
  91 /* a lazy portal for framework RPC requests */
  92 #define SRPC_FRAMEWORK_REQUEST_PORTAL 51
  93 /* all reply/bulk RDMAs go to this portal */
  94 #define SRPC_RDMA_PORTAL              52
  95
  96 static inline srpc_msg_type_t
  97 srpc_service2request (int service)
  98 {
  99         switch (service) {
 100         default:
 101                 LBUG ();
 102         case SRPC_SERVICE_DEBUG:
 103                 return SRPC_MSG_DEBUG_REQST;
 104
 105         case SRPC_SERVICE_MAKE_SESSION:
 106                 return SRPC_MSG_MKSN_REQST;
 107
 108         case SRPC_SERVICE_REMOVE_SESSION:
 109                 return SRPC_MSG_RMSN_REQST;
 110
 111         case SRPC_SERVICE_BATCH:
 112                 return SRPC_MSG_BATCH_REQST;
 113
 114         case SRPC_SERVICE_TEST:
 115                 return SRPC_MSG_TEST_REQST;
 116
 117         case SRPC_SERVICE_QUERY_STAT:
 118                 return SRPC_MSG_STAT_REQST;
 119
 120         case SRPC_SERVICE_BRW:
 121                 return SRPC_MSG_BRW_REQST;
 122
 123         case SRPC_SERVICE_PING:
 124                 return SRPC_MSG_PING_REQST;
 125
 126         case SRPC_SERVICE_JOIN:
 127                 return SRPC_MSG_JOIN_REQST;
 128         }
 129 }
 130
 131 static inline srpc_msg_type_t
 132 srpc_service2reply (int service)
 133 {
 134         return srpc_service2request(service) + 1;
 135 }
 136
 137 typedef enum {
 138         SRPC_BULK_REQ_RCVD   = 1, /* passive bulk request(PUT sink/GET source)
 139                                    * received */
 140         SRPC_BULK_PUT_SENT   = 2, /* active bulk PUT sent (source) */
 141         SRPC_BULK_GET_RPLD   = 3, /* active bulk GET replied (sink) */
 142         SRPC_REPLY_RCVD      = 4, /* incoming reply received */
 143         SRPC_REPLY_SENT      = 5, /* outgoing reply sent */
 144         SRPC_REQUEST_RCVD    = 6, /* incoming request received */
 145         SRPC_REQUEST_SENT    = 7, /* outgoing request sent */
 146 } srpc_event_type_t;
 147
 148 /* RPC event */
 149 typedef struct {
 150         srpc_event_type_t ev_type;   /* what's up */
 151         lnet_event_kind_t ev_lnet;   /* LNet event type */
 152         int               ev_fired;  /* LNet event fired? */
 153         int               ev_status; /* LNet event status */
 154         void              *ev_data;  /* owning server/client RPC */
 155 } srpc_event_t;
 156
 157 typedef struct {
 158         int              bk_len;     /* len of bulk data */
 159         lnet_handle_md_t bk_mdh;
 160         int              bk_sink;    /* sink/source */
 161         int              bk_niov;    /* # iov in bk_iovs */
 162         lnet_kiov_t      bk_iovs[0];
 163 } srpc_bulk_t; /* bulk descriptor */
 164
 165 /* message buffer descriptor */
 166 typedef struct srpc_buffer {
 167         struct list_head  buf_list; /* chain on srpc_service::*_msgq */
 168         srpc_msg_t        buf_msg;
 169         lnet_handle_md_t  buf_mdh;
 170         lnet_nid_t        buf_self;
 171         lnet_process_id_t buf_peer;
 172 } srpc_buffer_t;
 173
 174 struct swi_workitem;
 175 typedef int (*swi_action_t) (struct swi_workitem *);
 176
 177 typedef struct swi_workitem {
 178         struct cfs_wi_sched *swi_sched;
 179         cfs_workitem_t      swi_workitem;
 180         swi_action_t        swi_action;
 181         int                 swi_state;
 182 } swi_workitem_t;
 183
 184 /* server-side state of a RPC */
 185 typedef struct srpc_server_rpc {
 186         /* chain on srpc_service::*_rpcq */
 187         struct list_head       srpc_list;
 188         struct srpc_service_cd *srpc_scd;
 189         swi_workitem_t         srpc_wi;
 190         srpc_event_t           srpc_ev;      /* bulk/reply event */
 191         lnet_nid_t             srpc_self;
 192         lnet_process_id_t      srpc_peer;
 193         srpc_msg_t             srpc_replymsg;
 194         lnet_handle_md_t       srpc_replymdh;
 195         srpc_buffer_t          *srpc_reqstbuf;
 196         srpc_bulk_t            *srpc_bulk;
 197
 198         unsigned int           srpc_aborted; /* being given up */
 199         int                    srpc_status;
 200         void                   (*srpc_done)(struct srpc_server_rpc *);
 201 } srpc_server_rpc_t;
 202
 203 /* client-side state of a RPC */
 204 typedef struct srpc_client_rpc {
 205         struct list_head  crpc_list;      /* chain on user's lists */
 206         spinlock_t        crpc_lock;      /* serialize */
 207         int               crpc_service;
 208         atomic_t          crpc_refcount;
 209         int               crpc_timeout;   /* # seconds to wait for reply */
 210         stt_timer_t       crpc_timer;
 211         swi_workitem_t    crpc_wi;
 212         lnet_process_id_t crpc_dest;
 213
 214         void              (*crpc_done)(struct srpc_client_rpc *);
 215         void              (*crpc_fini)(struct srpc_client_rpc *);
 216         int               crpc_status;    /* completion status */
 217         void              *crpc_priv;     /* caller data */
 218
 219         /* state flags */
 220         unsigned int      crpc_aborted:1; /* being given up */
 221         unsigned int      crpc_closed:1;  /* completed */
 222
 223         /* RPC events */
 224         srpc_event_t      crpc_bulkev;    /* bulk event */
 225         srpc_event_t      crpc_reqstev;   /* request event */
 226         srpc_event_t      crpc_replyev;   /* reply event */
 227
 228         /* bulk, request(reqst), and reply exchanged on wire */
 229         srpc_msg_t        crpc_reqstmsg;
 230         srpc_msg_t        crpc_replymsg;
 231         lnet_handle_md_t  crpc_reqstmdh;
 232         lnet_handle_md_t  crpc_replymdh;
 233         srpc_bulk_t       crpc_bulk;
 234 } srpc_client_rpc_t;
 235
 236 #define srpc_client_rpc_size(rpc)                                        \
 237 offsetof(srpc_client_rpc_t, crpc_bulk.bk_iovs[(rpc)->crpc_bulk.bk_niov])
 238
 239 #define srpc_client_rpc_addref(rpc)                                      \
 240 do {                                                                     \
 241         CDEBUG(D_NET, "RPC[%p] -> %s (%d)++\n",                          \
 242                (rpc), libcfs_id2str((rpc)->crpc_dest),                   \
 243                atomic_read(&(rpc)->crpc_refcount));                      \
 244         LASSERT(atomic_read(&(rpc)->crpc_refcount) > 0);                 \
 245         atomic_inc(&(rpc)->crpc_refcount);                               \
 246 } while (0)
 247
 248 #define srpc_client_rpc_decref(rpc)                                      \
 249 do {                                                                     \
 250         CDEBUG(D_NET, "RPC[%p] -> %s (%d)--\n",                          \
 251                (rpc), libcfs_id2str((rpc)->crpc_dest),                   \
 252                atomic_read(&(rpc)->crpc_refcount));                      \
 253         LASSERT(atomic_read(&(rpc)->crpc_refcount) > 0);                 \
 254         if (atomic_dec_and_test(&(rpc)->crpc_refcount))                  \
 255                 srpc_destroy_client_rpc(rpc);                            \
 256 } while (0)
 257
 258 #define srpc_event_pending(rpc)   ((rpc)->crpc_bulkev.ev_fired == 0 ||   \
 259                                    (rpc)->crpc_reqstev.ev_fired == 0 ||  \
 260                                    (rpc)->crpc_replyev.ev_fired == 0)
 261
 262 /* CPU partition data of srpc service */
 263 struct srpc_service_cd {
 264         /** serialize */
 265         spinlock_t              scd_lock;
 266         /** backref to service */
 267         struct srpc_service     *scd_svc;
 268         /** event buffer */
 269         srpc_event_t            scd_ev;
 270         /** free RPC descriptors */
 271         struct list_head        scd_rpc_free;
 272         /** in-flight RPCs */
 273         struct list_head        scd_rpc_active;
 274         /** workitem for posting buffer */
 275         swi_workitem_t          scd_buf_wi;
 276         /** CPT id */
 277         int                     scd_cpt;
 278         /** error code for scd_buf_wi */
 279         int                     scd_buf_err;
 280         /** timestamp for scd_buf_err */
 281         time64_t                scd_buf_err_stamp;
 282         /** total # request buffers */
 283         int                     scd_buf_total;
 284         /** # posted request buffers */
 285         int                     scd_buf_nposted;
 286         /** in progress of buffer posting */
 287         int                     scd_buf_posting;
 288         /** allocate more buffers if scd_buf_nposted < scd_buf_low */
 289         int                     scd_buf_low;
 290         /** increase/decrease some buffers */
 291         int                     scd_buf_adjust;
 292         /** posted message buffers */
 293         struct list_head        scd_buf_posted;
 294         /** blocked for RPC descriptor */
 295         struct list_head        scd_buf_blocked;
 296 };
 297
 298 /* number of server workitems (mini-thread) for testing service */
 299 #define SFW_TEST_WI_MIN         256
 300 #define SFW_TEST_WI_MAX         2048
 301 /* extra buffers for tolerating buggy peers, or unbalanced number
 302  * of peers between partitions  */
 303 #define SFW_TEST_WI_EXTRA       64
 304
 305 /* number of server workitems (mini-thread) for framework service */
 306 #define SFW_FRWK_WI_MIN         16
 307 #define SFW_FRWK_WI_MAX         256
 308
 309 typedef struct srpc_service {
 310         int                     sv_id;          /* service id */
 311         const char              *sv_name;       /* human readable name */
 312         int                     sv_wi_total;    /* total server workitems */
 313         int                     sv_shuttingdown;
 314         int                     sv_ncpts;
 315         /* percpt data for srpc_service */
 316         struct srpc_service_cd  **sv_cpt_data;
 317         /* Service callbacks:
 318          * - sv_handler: process incoming RPC request
 319          * - sv_bulk_ready: notify bulk data
 320          */
 321         int                     (*sv_handler) (srpc_server_rpc_t *);
 322         int                     (*sv_bulk_ready) (srpc_server_rpc_t *, int);
 323 } srpc_service_t;
 324
 325 typedef struct {
 326         struct list_head sn_list;    /* chain on fw_zombie_sessions */
 327         lst_sid_t        sn_id;      /* unique identifier */
 328         unsigned int     sn_timeout; /* # seconds' inactivity to expire */
 329         int              sn_timer_active;
 330         unsigned int     sn_features;
 331         stt_timer_t      sn_timer;
 332         struct list_head sn_batches; /* list of batches */
 333         char             sn_name[LST_NAME_SIZE];
 334         atomic_t         sn_refcount;
 335         atomic_t         sn_brw_errors;
 336         atomic_t         sn_ping_errors;
 337         unsigned long    sn_started;
 338 } sfw_session_t;
 339
 340 #define sfw_sid_equal(sid0, sid1)     ((sid0).ses_nid == (sid1).ses_nid && \
 341                                        (sid0).ses_stamp == (sid1).ses_stamp)
 342
 343 typedef struct {
 344         struct list_head bat_list;      /* chain on sn_batches */
 345         lst_bid_t        bat_id;        /* batch id */
 346         int              bat_error;     /* error code of batch */
 347         sfw_session_t    *bat_session;  /* batch's session */
 348         atomic_t         bat_nactive;   /* # of active tests */
 349         struct list_head bat_tests;     /* test instances */
 350 } sfw_batch_t;
 351
 352 typedef struct {
 353         int  (*tso_init)(struct sfw_test_instance *tsi); /* initialize test
 354                                                           * client */
 355         void (*tso_fini)(struct sfw_test_instance *tsi); /* finalize test
 356                                                           * client */
 357         int  (*tso_prep_rpc)(struct sfw_test_unit *tsu,
 358                              lnet_process_id_t dest,
 359                              srpc_client_rpc_t **rpc);   /* prep a tests rpc */
 360         void (*tso_done_rpc)(struct sfw_test_unit *tsu,
 361                              srpc_client_rpc_t *rpc);    /* done a test rpc */
 362 } sfw_test_client_ops_t;
 363
 364 typedef struct sfw_test_instance {
 365         struct list_head           tsi_list;            /* chain on batch */
 366         int                        tsi_service;         /* test type */
 367         sfw_batch_t                *tsi_batch;          /* batch */
 368         sfw_test_client_ops_t      *tsi_ops;            /* test client operation
 369                                                          */
 370
 371         /* public parameter for all test units */
 372         unsigned int               tsi_is_client:1;     /* is test client */
 373         unsigned int               tsi_stoptsu_onerr:1; /* stop tsu on error */
 374         int                        tsi_concur;          /* concurrency */
 375         int                        tsi_loop;            /* loop count */
 376
 377         /* status of test instance */
 378         spinlock_t                 tsi_lock;            /* serialize */
 379         unsigned int               tsi_stopping:1;      /* test is stopping */
 380         atomic_t                   tsi_nactive;         /* # of active test
 381                                                          * unit */
 382         struct list_head           tsi_units;           /* test units */
 383         struct list_head           tsi_free_rpcs;       /* free rpcs */
 384         struct list_head           tsi_active_rpcs;     /* active rpcs */
 385
 386         union {
 387                 test_ping_req_t    ping;    /* ping parameter */
 388                 test_bulk_req_t    bulk_v0; /* bulk parameter */
 389                 test_bulk_req_v1_t bulk_v1; /* bulk v1 parameter */
 390         } tsi_u;
 391 } sfw_test_instance_t;
 392
 393 /* XXX: trailing (PAGE_CACHE_SIZE % sizeof(lnet_process_id_t)) bytes at
 394  * the end of pages are not used */
 395 #define SFW_MAX_CONCUR     LST_MAX_CONCUR
 396 #define SFW_ID_PER_PAGE    (PAGE_CACHE_SIZE / sizeof(lnet_process_id_packed_t))
 397 #define SFW_MAX_NDESTS     (LNET_MAX_IOV * SFW_ID_PER_PAGE)
 398 #define sfw_id_pages(n)    (((n) + SFW_ID_PER_PAGE - 1) / SFW_ID_PER_PAGE)
 399
 400 typedef struct sfw_test_unit {
 401         struct list_head    tsu_list;      /* chain on lst_test_instance */
 402         lnet_process_id_t   tsu_dest;      /* id of dest node */
 403         int                 tsu_loop;      /* loop count of the test */
 404         sfw_test_instance_t *tsu_instance; /* pointer to test instance */
 405         void                *tsu_private;  /* private data */
 406         swi_workitem_t      tsu_worker;    /* workitem of the test unit */
 407 } sfw_test_unit_t;
 408
 409 typedef struct sfw_test_case {
 410         struct list_head      tsc_list;         /* chain on fw_tests */
 411         srpc_service_t        *tsc_srv_service; /* test service */
 412         sfw_test_client_ops_t *tsc_cli_ops;     /* ops of test client */
 413 } sfw_test_case_t;
 414
 415 srpc_client_rpc_t *
 416 sfw_create_rpc(lnet_process_id_t peer, int service,
 417                unsigned features, int nbulkiov, int bulklen,
 418                void (*done) (srpc_client_rpc_t *), void *priv);
 419 int sfw_create_test_rpc(sfw_test_unit_t *tsu,
 420                         lnet_process_id_t peer, unsigned features,
 421                         int nblk, int blklen, srpc_client_rpc_t **rpc);
 422 void sfw_abort_rpc(srpc_client_rpc_t *rpc);
 423 void sfw_post_rpc(srpc_client_rpc_t *rpc);
 424 void sfw_client_rpc_done(srpc_client_rpc_t *rpc);
 425 void sfw_unpack_message(srpc_msg_t *msg);
 426 void sfw_free_pages(srpc_server_rpc_t *rpc);
 427 void sfw_add_bulk_page(srpc_bulk_t *bk, struct page *pg, int i);
 428 int sfw_alloc_pages(srpc_server_rpc_t *rpc, int cpt, int npages, int len,
 429                     int sink);
 430 int sfw_make_session (srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply);
 431
 432 srpc_client_rpc_t *
 433 srpc_create_client_rpc(lnet_process_id_t peer, int service,
 434                        int nbulkiov, int bulklen,
 435                        void (*rpc_done)(srpc_client_rpc_t *),
 436                        void (*rpc_fini)(srpc_client_rpc_t *), void *priv);
 437 void srpc_post_rpc(srpc_client_rpc_t *rpc);
 438 void srpc_abort_rpc(srpc_client_rpc_t *rpc, int why);
 439 void srpc_free_bulk(srpc_bulk_t *bk);
 440 srpc_bulk_t *srpc_alloc_bulk(int cpt, unsigned bulk_npg, unsigned bulk_len,
 441                              int sink);
 442 int srpc_send_rpc(swi_workitem_t *wi);
 443 int srpc_send_reply(srpc_server_rpc_t *rpc);
 444 int srpc_add_service(srpc_service_t *sv);
 445 int srpc_remove_service(srpc_service_t *sv);
 446 void srpc_shutdown_service(srpc_service_t *sv);
 447 void srpc_abort_service(srpc_service_t *sv);
 448 int srpc_finish_service(srpc_service_t *sv);
 449 int srpc_service_add_buffers(srpc_service_t *sv, int nbuffer);
 450 void srpc_service_remove_buffers(srpc_service_t *sv, int nbuffer);
 451 void srpc_get_counters(srpc_counters_t *cnt);
 452 void srpc_set_counters(const srpc_counters_t *cnt);
 453
 454 extern struct cfs_wi_sched *lst_sched_serial;
 455 extern struct cfs_wi_sched **lst_sched_test;
 456
 457 static inline int
 458 srpc_serv_is_framework(struct srpc_service *svc)
 459 {
 460         return svc->sv_id < SRPC_FRAMEWORK_SERVICE_MAX_ID;
 461 }
 462
 463 static inline int
 464 swi_wi_action(cfs_workitem_t *wi)
 465 {
 466         swi_workitem_t *swi = container_of(wi, swi_workitem_t, swi_workitem);
 467
 468         return swi->swi_action(swi);
 469 }
 470
 471 static inline void
 472 swi_init_workitem(swi_workitem_t *swi, void *data,
 473                   swi_action_t action, struct cfs_wi_sched *sched)
 474 {
 475         swi->swi_sched  = sched;
 476         swi->swi_action = action;
 477         swi->swi_state  = SWI_STATE_NEWBORN;
 478         cfs_wi_init(&swi->swi_workitem, data, swi_wi_action);
 479 }
 480
 481 static inline void
 482 swi_schedule_workitem(swi_workitem_t *wi)
 483 {
 484         cfs_wi_schedule(wi->swi_sched, &wi->swi_workitem);
 485 }
 486
 487 static inline void
 488 swi_exit_workitem(swi_workitem_t *swi)
 489 {
 490         cfs_wi_exit(swi->swi_sched, &swi->swi_workitem);
 491 }
 492
 493 static inline int
 494 swi_deschedule_workitem(swi_workitem_t *swi)
 495 {
 496         return cfs_wi_deschedule(swi->swi_sched, &swi->swi_workitem);
 497 }
 498
 499 int sfw_startup(void);
 500 int srpc_startup(void);
 501 void sfw_shutdown(void);
 502 void srpc_shutdown(void);
 503
 504 static inline void
 505 srpc_destroy_client_rpc (srpc_client_rpc_t *rpc)
 506 {
 507         LASSERT(rpc != NULL);
 508         LASSERT(!srpc_event_pending(rpc));
 509         LASSERT(atomic_read(&rpc->crpc_refcount) == 0);
 510
 511         if (rpc->crpc_fini == NULL) {
 512                 LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc));
 513         } else {
 514                 (*rpc->crpc_fini) (rpc);
 515         }
 516
 517         return;
 518 }
 519
 520 static inline void
 521 srpc_init_client_rpc (srpc_client_rpc_t *rpc, lnet_process_id_t peer,
 522                       int service, int nbulkiov, int bulklen,
 523                       void (*rpc_done)(srpc_client_rpc_t *),
 524                       void (*rpc_fini)(srpc_client_rpc_t *), void *priv)
 525 {
 526         LASSERT(nbulkiov <= LNET_MAX_IOV);
 527
 528         memset(rpc, 0, offsetof(srpc_client_rpc_t,
 529                                 crpc_bulk.bk_iovs[nbulkiov]));
 530
 531         INIT_LIST_HEAD(&rpc->crpc_list);
 532         swi_init_workitem(&rpc->crpc_wi, rpc, srpc_send_rpc,
 533                           lst_sched_test[lnet_cpt_of_nid(peer.nid)]);
 534         spin_lock_init(&rpc->crpc_lock);
 535         atomic_set(&rpc->crpc_refcount, 1); /* 1 ref for caller */
 536
 537         rpc->crpc_dest         = peer;
 538         rpc->crpc_priv         = priv;
 539         rpc->crpc_service      = service;
 540         rpc->crpc_bulk.bk_len  = bulklen;
 541         rpc->crpc_bulk.bk_niov = nbulkiov;
 542         rpc->crpc_done         = rpc_done;
 543         rpc->crpc_fini         = rpc_fini;
 544         LNetInvalidateHandle(&rpc->crpc_reqstmdh);
 545         LNetInvalidateHandle(&rpc->crpc_replymdh);
 546         LNetInvalidateHandle(&rpc->crpc_bulk.bk_mdh);
 547
 548         /* no event is expected at this point */
 549         rpc->crpc_bulkev.ev_fired  =
 550         rpc->crpc_reqstev.ev_fired =
 551         rpc->crpc_replyev.ev_fired = 1;
 552
 553         rpc->crpc_reqstmsg.msg_magic   = SRPC_MSG_MAGIC;
 554         rpc->crpc_reqstmsg.msg_version = SRPC_MSG_VERSION;
 555         rpc->crpc_reqstmsg.msg_type    = srpc_service2request(service);
 556         return;
 557 }
 558
 559 static inline const char *
 560 swi_state2str (int state)
 561 {
 562 #define STATE2STR(x) case x: return #x
 563         switch (state) {
 564         default:
 565                 LBUG();
 566         STATE2STR(SWI_STATE_NEWBORN);
 567         STATE2STR(SWI_STATE_REPLY_SUBMITTED);
 568         STATE2STR(SWI_STATE_REPLY_SENT);
 569         STATE2STR(SWI_STATE_REQUEST_SUBMITTED);
 570         STATE2STR(SWI_STATE_REQUEST_SENT);
 571         STATE2STR(SWI_STATE_REPLY_RECEIVED);
 572         STATE2STR(SWI_STATE_BULK_STARTED);
 573         STATE2STR(SWI_STATE_DONE);
 574         }
 575 #undef STATE2STR
 576 }
 577
 578 #define selftest_wait_events()                                  \
 579         do {                                                    \
 580                 set_current_state(TASK_UNINTERRUPTIBLE);        \
 581                 schedule_timeout(cfs_time_seconds(1) / 10);     \
 582         } while (0)
 583
 584 #define lst_wait_until(cond, lock, fmt, ...)                            \
 585 do {                                                                    \
 586         int __I = 2;                                                    \
 587         while (!(cond)) {                                               \
 588                 CDEBUG(IS_PO2(++__I) ? D_WARNING : D_NET,               \
 589                        fmt, ## __VA_ARGS__);                            \
 590                 spin_unlock(&(lock));                                   \
 591                                                                         \
 592                 selftest_wait_events();                                 \
 593                                                                         \
 594                 spin_lock(&(lock));                                     \
 595         }                                                               \
 596 } while (0)
 597
 598 static inline void
 599 srpc_wait_service_shutdown(srpc_service_t *sv)
 600 {
 601         int i = 2;
 602
 603         LASSERT(sv->sv_shuttingdown);
 604
 605         while (srpc_finish_service(sv) == 0) {
 606                 i++;
 607                 CDEBUG (((i & -i) == i) ? D_WARNING : D_NET,
 608                         "Waiting for %s service to shutdown...\n",
 609                         sv->sv_name);
 610                 selftest_wait_events();
 611         }
 612 }
 613
 614 extern sfw_test_client_ops_t brw_test_client;
 615 void brw_init_test_client(void);
 616
 617 extern srpc_service_t brw_test_service;
 618 void brw_init_test_service(void);
 619
 620 extern sfw_test_client_ops_t ping_test_client;
 621 void ping_init_test_client(void);
 622
 623 extern srpc_service_t ping_test_service;
 624 void ping_init_test_service(void);
 625
 626 #endif /* __SELFTEST_SELFTEST_H__ */