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, 2013, 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 #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 srpc_service_cd;
  80 struct sfw_test_unit;
  81 struct sfw_test_instance;
  82
  83 /* services below SRPC_FRAMEWORK_SERVICE_MAX_ID are framework
  84  * services, e.g. create/modify session.
  85  */
  86 #define SRPC_SERVICE_DEBUG              0
  87 #define SRPC_SERVICE_MAKE_SESSION       1
  88 #define SRPC_SERVICE_REMOVE_SESSION     2
  89 #define SRPC_SERVICE_BATCH              3
  90 #define SRPC_SERVICE_TEST               4
  91 #define SRPC_SERVICE_QUERY_STAT         5
  92 #define SRPC_SERVICE_JOIN               6
  93 #define SRPC_FRAMEWORK_SERVICE_MAX_ID   10
  94 /* other services start from SRPC_FRAMEWORK_SERVICE_MAX_ID+1 */
  95 #define SRPC_SERVICE_BRW                11
  96 #define SRPC_SERVICE_PING               12
  97 #define SRPC_SERVICE_MAX_ID             12
  98
  99 #define SRPC_REQUEST_PORTAL             50
 100 /* a lazy portal for framework RPC requests */
 101 #define SRPC_FRAMEWORK_REQUEST_PORTAL   51
 102 /* all reply/bulk RDMAs go to this portal */
 103 #define SRPC_RDMA_PORTAL                52
 104
 105 static inline srpc_msg_type_t
 106 srpc_service2request (int service)
 107 {
 108         switch (service) {
 109         default:
 110                 LBUG ();
 111         case SRPC_SERVICE_DEBUG:
 112                 return SRPC_MSG_DEBUG_REQST;
 113
 114         case SRPC_SERVICE_MAKE_SESSION:
 115                 return SRPC_MSG_MKSN_REQST;
 116
 117         case SRPC_SERVICE_REMOVE_SESSION:
 118                 return SRPC_MSG_RMSN_REQST;
 119
 120         case SRPC_SERVICE_BATCH:
 121                 return SRPC_MSG_BATCH_REQST;
 122
 123         case SRPC_SERVICE_TEST:
 124                 return SRPC_MSG_TEST_REQST;
 125
 126         case SRPC_SERVICE_QUERY_STAT:
 127                 return SRPC_MSG_STAT_REQST;
 128
 129         case SRPC_SERVICE_BRW:
 130                 return SRPC_MSG_BRW_REQST;
 131
 132         case SRPC_SERVICE_PING:
 133                 return SRPC_MSG_PING_REQST;
 134
 135         case SRPC_SERVICE_JOIN:
 136                 return SRPC_MSG_JOIN_REQST;
 137         }
 138 }
 139
 140 static inline srpc_msg_type_t
 141 srpc_service2reply (int service)
 142 {
 143         return srpc_service2request(service) + 1;
 144 }
 145
 146 typedef enum {
 147         SRPC_BULK_REQ_RCVD   = 1, /* passive bulk request(PUT sink/GET source) received */
 148         SRPC_BULK_PUT_SENT   = 2, /* active bulk PUT sent (source) */
 149         SRPC_BULK_GET_RPLD   = 3, /* active bulk GET replied (sink) */
 150         SRPC_REPLY_RCVD      = 4, /* incoming reply received */
 151         SRPC_REPLY_SENT      = 5, /* outgoing reply sent */
 152         SRPC_REQUEST_RCVD    = 6, /* incoming request received */
 153         SRPC_REQUEST_SENT    = 7, /* outgoing request sent */
 154 } srpc_event_type_t;
 155
 156 /* RPC event */
 157 typedef struct {
 158         srpc_event_type_t ev_type;   /* what's up */
 159         lnet_event_kind_t ev_lnet;   /* LNet event type */
 160         int               ev_fired;  /* LNet event fired? */
 161         int               ev_status; /* LNet event status */
 162         void             *ev_data;   /* owning server/client RPC */
 163 } srpc_event_t;
 164
 165 typedef struct {
 166         int              bk_len;  /* len of bulk data */
 167         lnet_handle_md_t bk_mdh;
 168         int              bk_sink; /* sink/source */
 169         int              bk_niov; /* # iov in bk_iovs */
 170 #ifdef __KERNEL__
 171         lnet_kiov_t      bk_iovs[0];
 172 #else
 173         struct page     **bk_pages;
 174         lnet_md_iovec_t  bk_iovs[0];
 175 #endif
 176 } srpc_bulk_t; /* bulk descriptor */
 177
 178 /* message buffer descriptor */
 179 typedef struct srpc_buffer {
 180         cfs_list_t           buf_list; /* chain on srpc_service::*_msgq */
 181         srpc_msg_t           buf_msg;
 182         lnet_handle_md_t     buf_mdh;
 183         lnet_nid_t           buf_self;
 184         lnet_process_id_t    buf_peer;
 185 } srpc_buffer_t;
 186
 187 struct swi_workitem;
 188 typedef int (*swi_action_t) (struct swi_workitem *);
 189
 190 typedef struct swi_workitem {
 191         struct cfs_wi_sched     *swi_sched;
 192         cfs_workitem_t       swi_workitem;
 193         swi_action_t         swi_action;
 194         int                  swi_state;
 195 } swi_workitem_t;
 196
 197 /* server-side state of a RPC */
 198 typedef struct srpc_server_rpc {
 199         /* chain on srpc_service::*_rpcq */
 200         cfs_list_t              srpc_list;
 201         struct srpc_service_cd *srpc_scd;
 202         swi_workitem_t       srpc_wi;
 203         srpc_event_t         srpc_ev;      /* bulk/reply event */
 204         lnet_nid_t           srpc_self;
 205         lnet_process_id_t    srpc_peer;
 206         srpc_msg_t           srpc_replymsg;
 207         lnet_handle_md_t     srpc_replymdh;
 208         srpc_buffer_t       *srpc_reqstbuf;
 209         srpc_bulk_t         *srpc_bulk;
 210
 211         unsigned int         srpc_aborted; /* being given up */
 212         int                  srpc_status;
 213         void               (*srpc_done)(struct srpc_server_rpc *);
 214 } srpc_server_rpc_t;
 215
 216 /* client-side state of a RPC */
 217 typedef struct srpc_client_rpc {
 218         cfs_list_t              crpc_list;      /* chain on user's lists */
 219         spinlock_t              crpc_lock;      /* serialize */
 220         int                  crpc_service;
 221         cfs_atomic_t         crpc_refcount;
 222         int                  crpc_timeout; /* # seconds to wait for reply */
 223         stt_timer_t          crpc_timer;
 224         swi_workitem_t       crpc_wi;
 225         lnet_process_id_t    crpc_dest;
 226
 227         void               (*crpc_done)(struct srpc_client_rpc *);
 228         void               (*crpc_fini)(struct srpc_client_rpc *);
 229         int                  crpc_status;    /* completion status */
 230         void                *crpc_priv;      /* caller data */
 231
 232         /* state flags */
 233         unsigned int         crpc_aborted:1; /* being given up */
 234         unsigned int         crpc_closed:1;  /* completed */
 235
 236         /* RPC events */
 237         srpc_event_t         crpc_bulkev;    /* bulk event */
 238         srpc_event_t         crpc_reqstev;   /* request event */
 239         srpc_event_t         crpc_replyev;   /* reply event */
 240
 241         /* bulk, request(reqst), and reply exchanged on wire */
 242         srpc_msg_t           crpc_reqstmsg;
 243         srpc_msg_t           crpc_replymsg;
 244         lnet_handle_md_t     crpc_reqstmdh;
 245         lnet_handle_md_t     crpc_replymdh;
 246         srpc_bulk_t          crpc_bulk;
 247 } srpc_client_rpc_t;
 248
 249 #define srpc_client_rpc_size(rpc)                                       \
 250 offsetof(srpc_client_rpc_t, crpc_bulk.bk_iovs[(rpc)->crpc_bulk.bk_niov])
 251
 252 #define srpc_client_rpc_addref(rpc)                                     \
 253 do {                                                                    \
 254         CDEBUG(D_NET, "RPC[%p] -> %s (%d)++\n",                         \
 255                (rpc), libcfs_id2str((rpc)->crpc_dest),                  \
 256                cfs_atomic_read(&(rpc)->crpc_refcount));                 \
 257         LASSERT(cfs_atomic_read(&(rpc)->crpc_refcount) > 0);            \
 258         cfs_atomic_inc(&(rpc)->crpc_refcount);                          \
 259 } while (0)
 260
 261 #define srpc_client_rpc_decref(rpc)                                     \
 262 do {                                                                    \
 263         CDEBUG(D_NET, "RPC[%p] -> %s (%d)--\n",                         \
 264                (rpc), libcfs_id2str((rpc)->crpc_dest),                  \
 265                cfs_atomic_read(&(rpc)->crpc_refcount));                 \
 266         LASSERT(cfs_atomic_read(&(rpc)->crpc_refcount) > 0);            \
 267         if (cfs_atomic_dec_and_test(&(rpc)->crpc_refcount))             \
 268                 srpc_destroy_client_rpc(rpc);                           \
 269 } while (0)
 270
 271 #define srpc_event_pending(rpc)   ((rpc)->crpc_bulkev.ev_fired == 0 ||  \
 272                                    (rpc)->crpc_reqstev.ev_fired == 0 || \
 273                                    (rpc)->crpc_replyev.ev_fired == 0)
 274
 275 /* CPU partition data of srpc service */
 276 struct srpc_service_cd {
 277         /** serialize */
 278         spinlock_t              scd_lock;
 279         /** backref to service */
 280         struct srpc_service     *scd_svc;
 281         /** event buffer */
 282         srpc_event_t            scd_ev;
 283         /** free RPC descriptors */
 284         cfs_list_t              scd_rpc_free;
 285         /** in-flight RPCs */
 286         cfs_list_t              scd_rpc_active;
 287         /** workitem for posting buffer */
 288         swi_workitem_t          scd_buf_wi;
 289         /** CPT id */
 290         int                     scd_cpt;
 291         /** error code for scd_buf_wi */
 292         int                     scd_buf_err;
 293         /** timestamp for scd_buf_err */
 294         unsigned long           scd_buf_err_stamp;
 295         /** total # request buffers */
 296         int                     scd_buf_total;
 297         /** # posted request buffers */
 298         int                     scd_buf_nposted;
 299         /** in progress of buffer posting */
 300         int                     scd_buf_posting;
 301         /** allocate more buffers if scd_buf_nposted < scd_buf_low */
 302         int                     scd_buf_low;
 303         /** increase/decrease some buffers */
 304         int                     scd_buf_adjust;
 305         /** posted message buffers */
 306         cfs_list_t              scd_buf_posted;
 307         /** blocked for RPC descriptor */
 308         cfs_list_t              scd_buf_blocked;
 309 };
 310
 311 /* number of server workitems (mini-thread) for testing service */
 312 #define SFW_TEST_WI_MIN         256
 313 #define SFW_TEST_WI_MAX         2048
 314 /* extra buffers for tolerating buggy peers, or unbalanced number
 315  * of peers between partitions  */
 316 #define SFW_TEST_WI_EXTRA       64
 317
 318 /* number of server workitems (mini-thread) for framework service */
 319 #define SFW_FRWK_WI_MIN         16
 320 #define SFW_FRWK_WI_MAX         256
 321
 322 typedef struct srpc_service {
 323         int                     sv_id;          /* service id */
 324         const char              *sv_name;       /* human readable name */
 325         int                     sv_wi_total;    /* total server workitems */
 326         int                     sv_shuttingdown;
 327         int                     sv_ncpts;
 328         /* percpt data for srpc_service */
 329         struct srpc_service_cd  **sv_cpt_data;
 330         /* Service callbacks:
 331          * - sv_handler: process incoming RPC request
 332          * - sv_bulk_ready: notify bulk data
 333          */
 334         int              (*sv_handler) (srpc_server_rpc_t *);
 335         int              (*sv_bulk_ready) (srpc_server_rpc_t *, int);
 336 } srpc_service_t;
 337
 338 typedef struct {
 339         cfs_list_t        sn_list;    /* chain on fw_zombie_sessions */
 340         lst_sid_t         sn_id;      /* unique identifier */
 341         unsigned int      sn_timeout; /* # seconds' inactivity to expire */
 342         int               sn_timer_active;
 343         unsigned int      sn_features;
 344         stt_timer_t       sn_timer;
 345         cfs_list_t        sn_batches; /* list of batches */
 346         char              sn_name[LST_NAME_SIZE];
 347         cfs_atomic_t      sn_refcount;
 348         cfs_atomic_t      sn_brw_errors;
 349         cfs_atomic_t      sn_ping_errors;
 350         cfs_time_t        sn_started;
 351 } sfw_session_t;
 352
 353 #define sfw_sid_equal(sid0, sid1)     ((sid0).ses_nid == (sid1).ses_nid && \
 354                                        (sid0).ses_stamp == (sid1).ses_stamp)
 355
 356 typedef struct {
 357         cfs_list_t        bat_list;      /* chain on sn_batches */
 358         lst_bid_t         bat_id;        /* batch id */
 359         int               bat_error;     /* error code of batch */
 360         sfw_session_t    *bat_session;   /* batch's session */
 361         cfs_atomic_t      bat_nactive;   /* # of active tests */
 362         cfs_list_t        bat_tests;     /* test instances */
 363 } sfw_batch_t;
 364
 365 typedef struct {
 366         int  (*tso_init)(struct sfw_test_instance *tsi); /* intialize test client */
 367         void (*tso_fini)(struct sfw_test_instance *tsi); /* finalize test client */
 368         int  (*tso_prep_rpc)(struct sfw_test_unit *tsu,
 369                              lnet_process_id_t dest,
 370                              srpc_client_rpc_t **rpc);   /* prep a tests rpc */
 371         void (*tso_done_rpc)(struct sfw_test_unit *tsu,
 372                              srpc_client_rpc_t *rpc);    /* done a test rpc */
 373 } sfw_test_client_ops_t;
 374
 375 typedef struct sfw_test_instance {
 376         cfs_list_t              tsi_list;         /* chain on batch */
 377         int                     tsi_service;      /* test type */
 378         sfw_batch_t            *tsi_batch;        /* batch */
 379         sfw_test_client_ops_t  *tsi_ops;          /* test client operations */
 380
 381         /* public parameter for all test units */
 382         unsigned int            tsi_is_client:1;     /* is test client */
 383         unsigned int            tsi_stoptsu_onerr:1; /* stop tsu on error */
 384         int                     tsi_concur;          /* concurrency */
 385         int                     tsi_loop;            /* loop count */
 386
 387         /* status of test instance */
 388         spinlock_t              tsi_lock;         /* serialize */
 389         unsigned int            tsi_stopping:1;   /* test is stopping */
 390         cfs_atomic_t            tsi_nactive;      /* # of active test unit */
 391         cfs_list_t              tsi_units;        /* test units */
 392         cfs_list_t              tsi_free_rpcs;    /* free rpcs */
 393         cfs_list_t              tsi_active_rpcs;  /* active rpcs */
 394
 395         union {
 396                 test_ping_req_t         ping;     /* ping parameter */
 397                 test_bulk_req_t         bulk_v0;  /* bulk parameter */
 398                 test_bulk_req_v1_t      bulk_v1;  /* bulk v1 parameter */
 399         } tsi_u;
 400 } sfw_test_instance_t;
 401
 402 /* XXX: trailing (PAGE_CACHE_SIZE % sizeof(lnet_process_id_t)) bytes at
 403  * the end of pages are not used */
 404 #define SFW_MAX_CONCUR     LST_MAX_CONCUR
 405 #define SFW_ID_PER_PAGE    (PAGE_CACHE_SIZE / sizeof(lnet_process_id_packed_t))
 406 #define SFW_MAX_NDESTS     (LNET_MAX_IOV * SFW_ID_PER_PAGE)
 407 #define sfw_id_pages(n)    (((n) + SFW_ID_PER_PAGE - 1) / SFW_ID_PER_PAGE)
 408
 409 typedef struct sfw_test_unit {
 410         cfs_list_t            tsu_list;         /* chain on lst_test_instance */
 411         lnet_process_id_t     tsu_dest;         /* id of dest node */
 412         int                   tsu_loop;         /* loop count of the test */
 413         sfw_test_instance_t  *tsu_instance;     /* pointer to test instance */
 414         void                 *tsu_private;      /* private data */
 415         swi_workitem_t        tsu_worker;       /* workitem of the test unit */
 416 } sfw_test_unit_t;
 417
 418 typedef struct sfw_test_case {
 419         cfs_list_t              tsc_list;         /* chain on fw_tests */
 420         srpc_service_t         *tsc_srv_service;  /* test service */
 421         sfw_test_client_ops_t  *tsc_cli_ops;      /* ops of test client */
 422 } sfw_test_case_t;
 423
 424 srpc_client_rpc_t *
 425 sfw_create_rpc(lnet_process_id_t peer, int service,
 426                unsigned features, int nbulkiov, int bulklen,
 427                void (*done) (srpc_client_rpc_t *), void *priv);
 428 int sfw_create_test_rpc(sfw_test_unit_t *tsu,
 429                         lnet_process_id_t peer, unsigned features,
 430                         int nblk, int blklen, srpc_client_rpc_t **rpc);
 431 void sfw_abort_rpc(srpc_client_rpc_t *rpc);
 432 void sfw_post_rpc(srpc_client_rpc_t *rpc);
 433 void sfw_client_rpc_done(srpc_client_rpc_t *rpc);
 434 void sfw_unpack_message(srpc_msg_t *msg);
 435 void sfw_free_pages(srpc_server_rpc_t *rpc);
 436 void sfw_add_bulk_page(srpc_bulk_t *bk, struct page *pg, int i);
 437 int sfw_alloc_pages(srpc_server_rpc_t *rpc, int cpt, int npages, int len,
 438                     int sink);
 439 int sfw_make_session (srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply);
 440
 441 srpc_client_rpc_t *
 442 srpc_create_client_rpc(lnet_process_id_t peer, int service,
 443                        int nbulkiov, int bulklen,
 444                        void (*rpc_done)(srpc_client_rpc_t *),
 445                        void (*rpc_fini)(srpc_client_rpc_t *), void *priv);
 446 void srpc_post_rpc(srpc_client_rpc_t *rpc);
 447 void srpc_abort_rpc(srpc_client_rpc_t *rpc, int why);
 448 void srpc_free_bulk(srpc_bulk_t *bk);
 449 srpc_bulk_t *srpc_alloc_bulk(int cpt, unsigned bulk_npg, unsigned bulk_len,
 450                              int sink);
 451 int srpc_send_rpc(swi_workitem_t *wi);
 452 int srpc_send_reply(srpc_server_rpc_t *rpc);
 453 int srpc_add_service(srpc_service_t *sv);
 454 int srpc_remove_service(srpc_service_t *sv);
 455 void srpc_shutdown_service(srpc_service_t *sv);
 456 void srpc_abort_service(srpc_service_t *sv);
 457 int srpc_finish_service(srpc_service_t *sv);
 458 int srpc_service_add_buffers(srpc_service_t *sv, int nbuffer);
 459 void srpc_service_remove_buffers(srpc_service_t *sv, int nbuffer);
 460 void srpc_get_counters(srpc_counters_t *cnt);
 461 void srpc_set_counters(const srpc_counters_t *cnt);
 462
 463 extern struct cfs_wi_sched *lst_sched_serial;
 464 extern struct cfs_wi_sched **lst_sched_test;
 465
 466 static inline int
 467 srpc_serv_is_framework(struct srpc_service *svc)
 468 {
 469         return svc->sv_id < SRPC_FRAMEWORK_SERVICE_MAX_ID;
 470 }
 471
 472 static inline int
 473 swi_wi_action(cfs_workitem_t *wi)
 474 {
 475         swi_workitem_t *swi = container_of(wi, swi_workitem_t, swi_workitem);
 476
 477         return swi->swi_action(swi);
 478 }
 479
 480 static inline void
 481 swi_init_workitem(swi_workitem_t *swi, void *data,
 482                   swi_action_t action, struct cfs_wi_sched *sched)
 483 {
 484         swi->swi_sched  = sched;
 485         swi->swi_action = action;
 486         swi->swi_state  = SWI_STATE_NEWBORN;
 487         cfs_wi_init(&swi->swi_workitem, data, swi_wi_action);
 488 }
 489
 490 static inline void
 491 swi_schedule_workitem(swi_workitem_t *wi)
 492 {
 493         cfs_wi_schedule(wi->swi_sched, &wi->swi_workitem);
 494 }
 495
 496 static inline void
 497 swi_exit_workitem(swi_workitem_t *swi)
 498 {
 499         cfs_wi_exit(swi->swi_sched, &swi->swi_workitem);
 500 }
 501
 502 static inline int
 503 swi_deschedule_workitem(swi_workitem_t *swi)
 504 {
 505         return cfs_wi_deschedule(swi->swi_sched, &swi->swi_workitem);
 506 }
 507
 508 #ifndef __KERNEL__
 509 static inline int
 510 swi_check_events(void)
 511 {
 512         return cfs_wi_check_events();
 513 }
 514 #endif
 515
 516 int sfw_startup(void);
 517 int srpc_startup(void);
 518 void sfw_shutdown(void);
 519 void srpc_shutdown(void);
 520
 521 static inline void
 522 srpc_destroy_client_rpc (srpc_client_rpc_t *rpc)
 523 {
 524         LASSERT (rpc != NULL);
 525         LASSERT (!srpc_event_pending(rpc));
 526         LASSERT (cfs_atomic_read(&rpc->crpc_refcount) == 0);
 527 #ifndef __KERNEL__
 528         LASSERT (rpc->crpc_bulk.bk_pages == NULL);
 529 #endif
 530
 531         if (rpc->crpc_fini == NULL) {
 532                 LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc));
 533         } else {
 534                 (*rpc->crpc_fini) (rpc);
 535         }
 536
 537         return;
 538 }
 539
 540 static inline void
 541 srpc_init_client_rpc (srpc_client_rpc_t *rpc, lnet_process_id_t peer,
 542                       int service, int nbulkiov, int bulklen,
 543                       void (*rpc_done)(srpc_client_rpc_t *),
 544                       void (*rpc_fini)(srpc_client_rpc_t *), void *priv)
 545 {
 546         LASSERT (nbulkiov <= LNET_MAX_IOV);
 547
 548         memset(rpc, 0, offsetof(srpc_client_rpc_t,
 549                                 crpc_bulk.bk_iovs[nbulkiov]));
 550
 551         CFS_INIT_LIST_HEAD(&rpc->crpc_list);
 552         swi_init_workitem(&rpc->crpc_wi, rpc, srpc_send_rpc,
 553                           lst_sched_test[lnet_cpt_of_nid(peer.nid)]);
 554         spin_lock_init(&rpc->crpc_lock);
 555         cfs_atomic_set(&rpc->crpc_refcount, 1); /* 1 ref for caller */
 556
 557         rpc->crpc_dest         = peer;
 558         rpc->crpc_priv         = priv;
 559         rpc->crpc_service      = service;
 560         rpc->crpc_bulk.bk_len  = bulklen;
 561         rpc->crpc_bulk.bk_niov = nbulkiov;
 562         rpc->crpc_done         = rpc_done;
 563         rpc->crpc_fini         = rpc_fini;
 564         LNetInvalidateHandle(&rpc->crpc_reqstmdh);
 565         LNetInvalidateHandle(&rpc->crpc_replymdh);
 566         LNetInvalidateHandle(&rpc->crpc_bulk.bk_mdh);
 567
 568         /* no event is expected at this point */
 569         rpc->crpc_bulkev.ev_fired  =
 570         rpc->crpc_reqstev.ev_fired =
 571         rpc->crpc_replyev.ev_fired = 1;
 572
 573         rpc->crpc_reqstmsg.msg_magic   = SRPC_MSG_MAGIC;
 574         rpc->crpc_reqstmsg.msg_version = SRPC_MSG_VERSION;
 575         rpc->crpc_reqstmsg.msg_type    = srpc_service2request(service);
 576         return;
 577 }
 578
 579 static inline const char *
 580 swi_state2str (int state)
 581 {
 582 #define STATE2STR(x) case x: return #x
 583         switch(state) {
 584                 default:
 585                         LBUG();
 586                 STATE2STR(SWI_STATE_NEWBORN);
 587                 STATE2STR(SWI_STATE_REPLY_SUBMITTED);
 588                 STATE2STR(SWI_STATE_REPLY_SENT);
 589                 STATE2STR(SWI_STATE_REQUEST_SUBMITTED);
 590                 STATE2STR(SWI_STATE_REQUEST_SENT);
 591                 STATE2STR(SWI_STATE_REPLY_RECEIVED);
 592                 STATE2STR(SWI_STATE_BULK_STARTED);
 593                 STATE2STR(SWI_STATE_DONE);
 594         }
 595 #undef STATE2STR
 596 }
 597
 598 #ifndef __KERNEL__
 599
 600 int stt_poll_interval(void);
 601 int sfw_session_removed(void);
 602
 603 int stt_check_events(void);
 604 int srpc_check_event(int timeout);
 605
 606 int lnet_selftest_init(void);
 607 void lnet_selftest_fini(void);
 608 int selftest_wait_events(void);
 609
 610 #else
 611
 612 #define selftest_wait_events()  cfs_pause(cfs_time_seconds(1) / 10)
 613
 614 #endif
 615
 616 #define lst_wait_until(cond, lock, fmt, ...)                            \
 617 do {                                                                    \
 618         int __I = 2;                                                    \
 619         while (!(cond)) {                                               \
 620                 CDEBUG(IS_PO2(++__I) ? D_WARNING : D_NET,               \
 621                        fmt, ## __VA_ARGS__);                            \
 622                 spin_unlock(&(lock));                                   \
 623                                                                         \
 624                 selftest_wait_events();                                 \
 625                                                                         \
 626                 spin_lock(&(lock));                                     \
 627         }                                                               \
 628 } while (0)
 629
 630 static inline void
 631 srpc_wait_service_shutdown(srpc_service_t *sv)
 632 {
 633         int i = 2;
 634
 635         LASSERT(sv->sv_shuttingdown);
 636
 637         while (srpc_finish_service(sv) == 0) {
 638                 i++;
 639                 CDEBUG (((i & -i) == i) ? D_WARNING : D_NET,
 640                         "Waiting for %s service to shutdown...\n",
 641                         sv->sv_name);
 642                 selftest_wait_events();
 643         }
 644 }
 645
 646 #endif /* __SELFTEST_SELFTEST_H__ */