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, 2017, Intel Corporation.
  27  */
  28 /*
  29  * This file is part of Lustre, http://www.lustre.org/
  30  *
  31  * lnet/selftest/selftest.h
  32  *
  33  * Author: Isaac Huang <isaac@clusterfs.com>
  34  */
  35 #ifndef __SELFTEST_SELFTEST_H__
  36 #define __SELFTEST_SELFTEST_H__
  37
  38 #define LNET_ONLY
  39
  40 #include <libcfs/libcfs.h>
  41 #include <lnet/api.h>
  42 #include <lnet/lib-lnet.h>
  43 #include <lnet/lib-types.h>
  44 #include <uapi/linux/lnet/lnetst.h>
  45
  46 #include "rpc.h"
  47 #include "timer.h"
  48
  49 #ifndef MADE_WITHOUT_COMPROMISE
  50 #define MADE_WITHOUT_COMPROMISE
  51 #endif
  52
  53 /* enum lnet_selftest_session_attrs   - LNet selftest session Netlink
  54  *                                      attributes
  55  *
  56  *  @LNET_SELFTEST_SESSION_UNSPEC:      unspecified attribute to catch errors
  57  *  @LNET_SELFTEST_SESSION_PAD:         padding for 64-bit attributes, ignore
  58  *
  59  *  @LENT_SELFTEST_SESSION_HDR:         Netlink group this data is for
  60  *                                      (NLA_NUL_STRING)
  61  *  @LNET_SELFTEST_SESSION_NAME:        name of this session (NLA_STRING)
  62  *  @LNET_SELFTEST_SESSION_KEY:         key used to represent the session
  63  *                                      (NLA_U32)
  64  *  @LNET_SELFTEST_SESSION_TIMESTAMP:   timestamp when the session was created
  65  *                                      (NLA_S64)
  66  *  @LNET_SELFTEST_SESSION_NID:         NID of the node selftest ran on
  67  *                                      (NLA_STRING)
  68  *  @LNET_SELFTEST_SESSION_NODE_COUNT:  Number of nodes in use (NLA_U16)
  69  */
  70 enum lnet_selftest_session_attrs {
  71         LNET_SELFTEST_SESSION_UNSPEC = 0,
  72         LNET_SELFTEST_SESSION_PAD = LNET_SELFTEST_SESSION_UNSPEC,
  73
  74         LNET_SELFTEST_SESSION_HDR,
  75         LNET_SELFTEST_SESSION_NAME,
  76         LNET_SELFTEST_SESSION_KEY,
  77         LNET_SELFTEST_SESSION_TIMESTAMP,
  78         LNET_SELFTEST_SESSION_NID,
  79         LNET_SELFTEST_SESSION_NODE_COUNT,
  80
  81         __LNET_SELFTEST_SESSION_MAX_PLUS_ONE,
  82 };
  83
  84 #define LNET_SELFTEST_SESSION_MAX       (__LNET_SELFTEST_SESSION_MAX_PLUS_ONE - 1)
  85
  86 #define SWI_STATE_NEWBORN                  0
  87 #define SWI_STATE_REPLY_SUBMITTED          1
  88 #define SWI_STATE_REPLY_SENT               2
  89 #define SWI_STATE_REQUEST_SUBMITTED        3
  90 #define SWI_STATE_REQUEST_SENT             4
  91 #define SWI_STATE_REPLY_RECEIVED           5
  92 #define SWI_STATE_BULK_STARTED             6
  93 #define SWI_STATE_DONE                     10
  94
  95 /* forward refs */
  96 struct srpc_service;
  97 struct srpc_service_cd;
  98 struct sfw_test_unit;
  99 struct sfw_test_instance;
 100
 101 /* services below SRPC_FRAMEWORK_SERVICE_MAX_ID are framework
 102  * services, e.g. create/modify session.
 103  */
 104 #define SRPC_SERVICE_DEBUG              0
 105 #define SRPC_SERVICE_MAKE_SESSION       1
 106 #define SRPC_SERVICE_REMOVE_SESSION     2
 107 #define SRPC_SERVICE_BATCH              3
 108 #define SRPC_SERVICE_TEST               4
 109 #define SRPC_SERVICE_QUERY_STAT         5
 110 #define SRPC_SERVICE_JOIN               6
 111 #define SRPC_FRAMEWORK_SERVICE_MAX_ID   10
 112 /* other services start from SRPC_FRAMEWORK_SERVICE_MAX_ID+1 */
 113 #define SRPC_SERVICE_BRW                11
 114 #define SRPC_SERVICE_PING               12
 115 #define SRPC_SERVICE_MAX_ID             12
 116
 117 #define SRPC_REQUEST_PORTAL             50
 118 /* a lazy portal for framework RPC requests */
 119 #define SRPC_FRAMEWORK_REQUEST_PORTAL   51
 120 /* all reply/bulk RDMAs go to this portal */
 121 #define SRPC_RDMA_PORTAL                52
 122
 123 static inline enum srpc_msg_type
 124 srpc_service2request (int service)
 125 {
 126         switch (service) {
 127         default:
 128                 LBUG ();
 129         case SRPC_SERVICE_DEBUG:
 130                 return SRPC_MSG_DEBUG_REQST;
 131
 132         case SRPC_SERVICE_MAKE_SESSION:
 133                 return SRPC_MSG_MKSN_REQST;
 134
 135         case SRPC_SERVICE_REMOVE_SESSION:
 136                 return SRPC_MSG_RMSN_REQST;
 137
 138         case SRPC_SERVICE_BATCH:
 139                 return SRPC_MSG_BATCH_REQST;
 140
 141         case SRPC_SERVICE_TEST:
 142                 return SRPC_MSG_TEST_REQST;
 143
 144         case SRPC_SERVICE_QUERY_STAT:
 145                 return SRPC_MSG_STAT_REQST;
 146
 147         case SRPC_SERVICE_BRW:
 148                 return SRPC_MSG_BRW_REQST;
 149
 150         case SRPC_SERVICE_PING:
 151                 return SRPC_MSG_PING_REQST;
 152
 153         case SRPC_SERVICE_JOIN:
 154                 return SRPC_MSG_JOIN_REQST;
 155         }
 156 }
 157
 158 static inline enum srpc_msg_type
 159 srpc_service2reply (int service)
 160 {
 161         return srpc_service2request(service) + 1;
 162 }
 163
 164 enum srpc_event_type {
 165         SRPC_BULK_REQ_RCVD   = 1, /* passive bulk request(PUT sink/GET source) received */
 166         SRPC_BULK_PUT_SENT   = 2, /* active bulk PUT sent (source) */
 167         SRPC_BULK_GET_RPLD   = 3, /* active bulk GET replied (sink) */
 168         SRPC_REPLY_RCVD      = 4, /* incoming reply received */
 169         SRPC_REPLY_SENT      = 5, /* outgoing reply sent */
 170         SRPC_REQUEST_RCVD    = 6, /* incoming request received */
 171         SRPC_REQUEST_SENT    = 7, /* outgoing request sent */
 172 };
 173
 174 /* RPC event */
 175 struct srpc_event {
 176         enum srpc_event_type    ev_type;   /* what's up */
 177         enum lnet_event_kind    ev_lnet;   /* LNet event type */
 178         int               ev_fired;  /* LNet event fired? */
 179         int               ev_status; /* LNet event status */
 180         void             *ev_data;   /* owning server/client RPC */
 181 };
 182
 183 /* bulk descriptor */
 184 struct srpc_bulk {
 185         int                     bk_len;  /* len of bulk data */
 186         struct lnet_handle_md   bk_mdh;
 187         int                     bk_sink; /* sink/source */
 188         int                     bk_niov; /* # iov in bk_iovs */
 189         struct bio_vec          bk_iovs[0];
 190 };
 191
 192 /* message buffer descriptor */
 193 struct srpc_buffer {
 194         struct list_head        buf_list; /* chain on srpc_service::*_msgq */
 195         struct srpc_msg         buf_msg;
 196         struct lnet_handle_md   buf_mdh;
 197         lnet_nid_t              buf_self;
 198         struct lnet_process_id  buf_peer;
 199 };
 200
 201 struct swi_workitem;
 202 typedef int (*swi_action_t)(struct swi_workitem *);
 203
 204 struct swi_workitem {
 205         struct cfs_wi_sched     *swi_sched;
 206         struct cfs_workitem     swi_workitem;
 207         swi_action_t         swi_action;
 208         int                  swi_state;
 209 };
 210
 211 /* server-side state of a RPC */
 212 struct srpc_server_rpc {
 213         /* chain on srpc_service::*_rpcq */
 214         struct list_head        srpc_list;
 215         struct srpc_service_cd *srpc_scd;
 216         struct swi_workitem     srpc_wi;
 217         struct srpc_event       srpc_ev;        /* bulk/reply event */
 218         lnet_nid_t              srpc_self;
 219         struct lnet_process_id  srpc_peer;
 220         struct srpc_msg         srpc_replymsg;
 221         struct lnet_handle_md   srpc_replymdh;
 222         struct srpc_buffer     *srpc_reqstbuf;
 223         struct srpc_bulk       *srpc_bulk;
 224
 225         unsigned int    srpc_aborted; /* being given up */
 226         int             srpc_status;
 227         void            (*srpc_done)(struct srpc_server_rpc *);
 228 };
 229
 230 /* client-side state of a RPC */
 231 struct srpc_client_rpc {
 232         struct list_head        crpc_list;      /* chain on user's lists */
 233         spinlock_t              crpc_lock;      /* serialize */
 234         int                     crpc_service;
 235         atomic_t                crpc_refcount;
 236         /* # seconds to wait for reply */
 237         int                     crpc_timeout;
 238         struct stt_timer        crpc_timer;
 239         struct swi_workitem     crpc_wi;
 240         struct lnet_process_id  crpc_dest;
 241
 242         void               (*crpc_done)(struct srpc_client_rpc *);
 243         void               (*crpc_fini)(struct srpc_client_rpc *);
 244         int                  crpc_status;    /* completion status */
 245         void                *crpc_priv;      /* caller data */
 246
 247         /* state flags */
 248         unsigned int         crpc_aborted:1; /* being given up */
 249         unsigned int         crpc_closed:1;  /* completed */
 250
 251         /* RPC events */
 252         struct srpc_event       crpc_bulkev;    /* bulk event */
 253         struct srpc_event       crpc_reqstev;   /* request event */
 254         struct srpc_event       crpc_replyev;   /* reply event */
 255
 256         /* bulk, request(reqst), and reply exchanged on wire */
 257         struct srpc_msg         crpc_reqstmsg;
 258         struct srpc_msg         crpc_replymsg;
 259         struct lnet_handle_md   crpc_reqstmdh;
 260         struct lnet_handle_md   crpc_replymdh;
 261         struct srpc_bulk        crpc_bulk;
 262 };
 263
 264 #define srpc_client_rpc_size(rpc)                                       \
 265 offsetof(struct srpc_client_rpc, crpc_bulk.bk_iovs[(rpc)->crpc_bulk.bk_niov])
 266
 267 #define srpc_client_rpc_addref(rpc)                                     \
 268 do {                                                                    \
 269         CDEBUG(D_NET, "RPC[%p] -> %s (%d)++\n",                         \
 270                (rpc), libcfs_id2str((rpc)->crpc_dest),                  \
 271                atomic_read(&(rpc)->crpc_refcount));                 \
 272         LASSERT(atomic_read(&(rpc)->crpc_refcount) > 0);            \
 273         atomic_inc(&(rpc)->crpc_refcount);                          \
 274 } while (0)
 275
 276 #define srpc_client_rpc_decref(rpc)                                     \
 277 do {                                                                    \
 278         CDEBUG(D_NET, "RPC[%p] -> %s (%d)--\n",                         \
 279                (rpc), libcfs_id2str((rpc)->crpc_dest),                  \
 280                atomic_read(&(rpc)->crpc_refcount));                 \
 281         LASSERT(atomic_read(&(rpc)->crpc_refcount) > 0);            \
 282         if (atomic_dec_and_test(&(rpc)->crpc_refcount))             \
 283                 srpc_destroy_client_rpc(rpc);                           \
 284 } while (0)
 285
 286 #define srpc_event_pending(rpc)   ((rpc)->crpc_bulkev.ev_fired == 0 ||  \
 287                                    (rpc)->crpc_reqstev.ev_fired == 0 || \
 288                                    (rpc)->crpc_replyev.ev_fired == 0)
 289
 290 /* CPU partition data of srpc service */
 291 struct srpc_service_cd {
 292         /** serialize */
 293         spinlock_t              scd_lock;
 294         /** backref to service */
 295         struct srpc_service     *scd_svc;
 296         /** event buffer */
 297         struct srpc_event       scd_ev;
 298         /** free RPC descriptors */
 299         struct list_head        scd_rpc_free;
 300         /** in-flight RPCs */
 301         struct list_head        scd_rpc_active;
 302         /** workitem for posting buffer */
 303         struct swi_workitem     scd_buf_wi;
 304         /** CPT id */
 305         int                     scd_cpt;
 306         /** error code for scd_buf_wi */
 307         int                     scd_buf_err;
 308         /** timestamp for scd_buf_err */
 309         time64_t                scd_buf_err_stamp;
 310         /** total # request buffers */
 311         int                     scd_buf_total;
 312         /** # posted request buffers */
 313         int                     scd_buf_nposted;
 314         /** in progress of buffer posting */
 315         int                     scd_buf_posting;
 316         /** allocate more buffers if scd_buf_nposted < scd_buf_low */
 317         int                     scd_buf_low;
 318         /** increase/decrease some buffers */
 319         int                     scd_buf_adjust;
 320         /** posted message buffers */
 321         struct list_head        scd_buf_posted;
 322         /** blocked for RPC descriptor */
 323         struct list_head        scd_buf_blocked;
 324 };
 325
 326 /* number of server workitems (mini-thread) for testing service */
 327 #define SFW_TEST_WI_MIN         256
 328 #define SFW_TEST_WI_MAX         2048
 329 /* extra buffers for tolerating buggy peers, or unbalanced number
 330  * of peers between partitions  */
 331 #define SFW_TEST_WI_EXTRA       64
 332
 333 /* number of server workitems (mini-thread) for framework service */
 334 #define SFW_FRWK_WI_MIN         16
 335 #define SFW_FRWK_WI_MAX         256
 336
 337 struct srpc_service {
 338         int                     sv_id;          /* service id */
 339         const char              *sv_name;       /* human readable name */
 340         int                     sv_wi_total;    /* total server workitems */
 341         int                     sv_shuttingdown;
 342         int                     sv_ncpts;
 343         /* percpt data for srpc_service */
 344         struct srpc_service_cd  **sv_cpt_data;
 345         /* Service callbacks:
 346          * - sv_handler: process incoming RPC request
 347          * - sv_bulk_ready: notify bulk data
 348          */
 349         int              (*sv_handler)(struct srpc_server_rpc *);
 350         int              (*sv_bulk_ready)(struct srpc_server_rpc *, int);
 351 };
 352
 353 struct lst_session_id {
 354         s64                     ses_stamp;      /* time stamp in milliseconds */
 355         struct lnet_nid         ses_nid;        /* nid of console node */
 356 };                                              /*** session id (large addr) */
 357
 358 extern struct lst_session_id LST_INVALID_SID;
 359
 360 struct sfw_session {
 361         /* chain on fw_zombie_sessions */
 362         struct list_head        sn_list;
 363         struct lst_session_id   sn_id;          /* unique identifier */
 364         /* # seconds' inactivity to expire */
 365         unsigned int            sn_timeout;
 366         int                     sn_timer_active;
 367         unsigned int            sn_features;
 368         struct stt_timer        sn_timer;
 369         struct list_head        sn_batches;     /* list of batches */
 370         char                    sn_name[LST_NAME_SIZE];
 371         atomic_t                sn_refcount;
 372         atomic_t                sn_brw_errors;
 373         atomic_t                sn_ping_errors;
 374         ktime_t                 sn_started;
 375 };
 376
 377 static inline int sfw_sid_equal(struct lst_sid sid0,
 378                                 struct lst_session_id sid1)
 379 {
 380         struct lnet_nid ses_nid;
 381
 382         lnet_nid4_to_nid(sid0.ses_nid, &ses_nid);
 383
 384         return ((sid0.ses_stamp == sid1.ses_stamp) &&
 385                 nid_same(&ses_nid, &sid1.ses_nid));
 386 }
 387
 388 struct sfw_batch {
 389         struct list_head        bat_list;       /* chain on sn_batches */
 390         struct lst_bid          bat_id;         /* batch id */
 391         int                     bat_error;      /* error code of batch */
 392         struct sfw_session      *bat_session;   /* batch's session */
 393         atomic_t                bat_nactive;    /* # of active tests */
 394         struct list_head        bat_tests;      /* test instances */
 395 };
 396
 397 struct sfw_test_client_ops {
 398         int  (*tso_init)(struct sfw_test_instance *tsi); /* intailize test client */
 399         void (*tso_fini)(struct sfw_test_instance *tsi); /* finalize test client */
 400         int  (*tso_prep_rpc)(struct sfw_test_unit *tsu,
 401                              struct lnet_process_id dest,
 402                              struct srpc_client_rpc **rpc); /* prep a tests rpc */
 403         void (*tso_done_rpc)(struct sfw_test_unit *tsu,
 404                              struct srpc_client_rpc *rpc);  /* done a test rpc */
 405 };
 406
 407 struct sfw_test_instance {
 408         struct list_head        tsi_list;       /* chain on batch */
 409         int                     tsi_service;    /* test type */
 410         struct sfw_batch        *tsi_batch;     /* batch */
 411         struct sfw_test_client_ops      *tsi_ops;       /* test client operations */
 412
 413         /* public parameter for all test units */
 414         unsigned int            tsi_is_client:1;     /* is test client */
 415         unsigned int            tsi_stoptsu_onerr:1; /* stop tsu on error */
 416         int                     tsi_concur;          /* concurrency */
 417         int                     tsi_loop;            /* loop count */
 418
 419         /* status of test instance */
 420         spinlock_t              tsi_lock;       /* serialize */
 421         unsigned int            tsi_stopping:1; /* test is stopping */
 422         atomic_t                tsi_nactive;    /* # of active test unit */
 423         struct list_head        tsi_units;      /* test units */
 424         struct list_head        tsi_free_rpcs;  /* free rpcs */
 425         struct list_head        tsi_active_rpcs;/* active rpcs */
 426
 427         union {
 428                 struct test_ping_req    ping;     /* ping parameter */
 429                 struct test_bulk_req    bulk_v0;  /* bulk parameter */
 430                 struct test_bulk_req_v1 bulk_v1;  /* bulk v1 parameter */
 431         } tsi_u;
 432 };
 433
 434 /* XXX: trailing (PAGE_SIZE % sizeof(struct lnet_process_id)) bytes at
 435  * the end of pages are not used */
 436 #define SFW_MAX_CONCUR     LST_MAX_CONCUR
 437 #define SFW_ID_PER_PAGE    (PAGE_SIZE / sizeof(struct lnet_process_id_packed))
 438 #define SFW_MAX_NDESTS     (LNET_MAX_IOV * SFW_ID_PER_PAGE)
 439 #define sfw_id_pages(n)    (((n) + SFW_ID_PER_PAGE - 1) / SFW_ID_PER_PAGE)
 440
 441 struct sfw_test_unit {
 442         struct list_head        tsu_list;       /* chain on lst_test_instance */
 443         struct lnet_process_id  tsu_dest;       /* id of dest node */
 444         int                     tsu_loop;       /* loop count of the test */
 445         struct sfw_test_instance *tsu_instance; /* pointer to test instance */
 446         void                    *tsu_private;   /* private data */
 447         struct swi_workitem      tsu_worker;    /* workitem of the test unit */
 448 };
 449
 450 struct sfw_test_case {
 451         struct list_head                tsc_list;               /* chain on fw_tests */
 452         struct srpc_service             *tsc_srv_service;       /* test service */
 453         struct sfw_test_client_ops      *tsc_cli_ops;           /* ops of test client */
 454 };
 455
 456 struct srpc_client_rpc *
 457 sfw_create_rpc(struct lnet_process_id peer, int service,
 458                unsigned features, int nbulkiov, int bulklen,
 459                void (*done)(struct srpc_client_rpc *), void *priv);
 460 int sfw_create_test_rpc(struct sfw_test_unit *tsu,
 461                         struct lnet_process_id peer, unsigned int features,
 462                         int nblk, int blklen, struct srpc_client_rpc **rpc);
 463 void sfw_abort_rpc(struct srpc_client_rpc *rpc);
 464 void sfw_post_rpc(struct srpc_client_rpc *rpc);
 465 void sfw_client_rpc_done(struct srpc_client_rpc *rpc);
 466 void sfw_unpack_message(struct srpc_msg *msg);
 467 void sfw_free_pages(struct srpc_server_rpc *rpc);
 468 void sfw_add_bulk_page(struct srpc_bulk *bk, struct page *pg, int i);
 469 int sfw_alloc_pages(struct srpc_server_rpc *rpc, int cpt, int npages, int len,
 470                     int sink);
 471 int sfw_make_session(struct srpc_mksn_reqst *request,
 472                      struct srpc_mksn_reply *reply);
 473
 474 struct srpc_client_rpc *
 475 srpc_create_client_rpc(struct lnet_process_id peer, int service,
 476                        int nbulkiov, int bulklen,
 477                        void (*rpc_done)(struct srpc_client_rpc *),
 478                        void (*rpc_fini)(struct srpc_client_rpc *), void *priv);
 479 void srpc_post_rpc(struct srpc_client_rpc *rpc);
 480 void srpc_abort_rpc(struct srpc_client_rpc *rpc, int why);
 481 void srpc_free_bulk(struct srpc_bulk *bk);
 482 struct srpc_bulk *srpc_alloc_bulk(int cpt, unsigned int off,
 483                                   unsigned int bulk_npg, unsigned int bulk_len,
 484                                   int sink);
 485 int srpc_send_rpc(struct swi_workitem *wi);
 486 int srpc_send_reply(struct srpc_server_rpc *rpc);
 487 int srpc_add_service(struct srpc_service *sv);
 488 int srpc_remove_service(struct srpc_service *sv);
 489 void srpc_shutdown_service(struct srpc_service *sv);
 490 void srpc_abort_service(struct srpc_service *sv);
 491 int srpc_finish_service(struct srpc_service *sv);
 492 int srpc_service_add_buffers(struct srpc_service *sv, int nbuffer);
 493 void srpc_service_remove_buffers(struct srpc_service *sv, int nbuffer);
 494 void srpc_get_counters(struct srpc_counters *cnt);
 495
 496 extern struct cfs_wi_sched *lst_sched_serial;
 497 extern struct cfs_wi_sched **lst_sched_test;
 498
 499 static inline int
 500 srpc_serv_is_framework(struct srpc_service *svc)
 501 {
 502         return svc->sv_id < SRPC_FRAMEWORK_SERVICE_MAX_ID;
 503 }
 504
 505 static inline int
 506 swi_wi_action(struct cfs_workitem *wi)
 507 {
 508         struct swi_workitem *swi;
 509
 510         swi = container_of(wi, struct swi_workitem, swi_workitem);
 511         return swi->swi_action(swi);
 512 }
 513
 514 static inline void
 515 swi_init_workitem(struct swi_workitem *swi,
 516                   swi_action_t action, struct cfs_wi_sched *sched)
 517 {
 518         swi->swi_sched  = sched;
 519         swi->swi_action = action;
 520         swi->swi_state  = SWI_STATE_NEWBORN;
 521         cfs_wi_init(&swi->swi_workitem, swi_wi_action);
 522 }
 523
 524 static inline void
 525 swi_schedule_workitem(struct swi_workitem *wi)
 526 {
 527         cfs_wi_schedule(wi->swi_sched, &wi->swi_workitem);
 528 }
 529
 530 static inline void
 531 swi_exit_workitem(struct swi_workitem *swi)
 532 {
 533         cfs_wi_exit(swi->swi_sched, &swi->swi_workitem);
 534 }
 535
 536 static inline int
 537 swi_deschedule_workitem(struct swi_workitem *swi)
 538 {
 539         return cfs_wi_deschedule(swi->swi_sched, &swi->swi_workitem);
 540 }
 541
 542 int sfw_startup(void);
 543 int srpc_startup(void);
 544 void sfw_shutdown(void);
 545 void srpc_shutdown(void);
 546
 547 static inline void
 548 srpc_destroy_client_rpc(struct srpc_client_rpc *rpc)
 549 {
 550         LASSERT (rpc != NULL);
 551         LASSERT (!srpc_event_pending(rpc));
 552         LASSERT (atomic_read(&rpc->crpc_refcount) == 0);
 553
 554         if (rpc->crpc_fini == NULL) {
 555                 LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc));
 556         } else {
 557                 (*rpc->crpc_fini) (rpc);
 558         }
 559 }
 560
 561 static inline void
 562 srpc_init_client_rpc(struct srpc_client_rpc *rpc, struct lnet_process_id peer,
 563                      int service, int nbulkiov, int bulklen,
 564                      void (*rpc_done)(struct srpc_client_rpc *),
 565                      void (*rpc_fini)(struct srpc_client_rpc *), void *priv)
 566 {
 567         LASSERT(nbulkiov <= LNET_MAX_IOV);
 568
 569         memset(rpc, 0, offsetof(struct srpc_client_rpc,
 570                                 crpc_bulk.bk_iovs[nbulkiov]));
 571
 572         INIT_LIST_HEAD(&rpc->crpc_list);
 573         swi_init_workitem(&rpc->crpc_wi, srpc_send_rpc,
 574                           lst_sched_test[lnet_cpt_of_nid(peer.nid, NULL)]);
 575         spin_lock_init(&rpc->crpc_lock);
 576         atomic_set(&rpc->crpc_refcount, 1); /* 1 ref for caller */
 577
 578         rpc->crpc_dest         = peer;
 579         rpc->crpc_priv         = priv;
 580         rpc->crpc_service      = service;
 581         rpc->crpc_bulk.bk_len  = bulklen;
 582         rpc->crpc_bulk.bk_niov = nbulkiov;
 583         rpc->crpc_done         = rpc_done;
 584         rpc->crpc_fini         = rpc_fini;
 585         LNetInvalidateMDHandle(&rpc->crpc_reqstmdh);
 586         LNetInvalidateMDHandle(&rpc->crpc_replymdh);
 587         LNetInvalidateMDHandle(&rpc->crpc_bulk.bk_mdh);
 588
 589         /* no event is expected at this point */
 590         rpc->crpc_bulkev.ev_fired  =
 591         rpc->crpc_reqstev.ev_fired =
 592         rpc->crpc_replyev.ev_fired = 1;
 593
 594         rpc->crpc_reqstmsg.msg_magic   = SRPC_MSG_MAGIC;
 595         rpc->crpc_reqstmsg.msg_version = SRPC_MSG_VERSION;
 596         rpc->crpc_reqstmsg.msg_type    = srpc_service2request(service);
 597 }
 598
 599 static inline const char *
 600 swi_state2str (int state)
 601 {
 602 #define STATE2STR(x) case x: return #x
 603         switch(state) {
 604                 default:
 605                         LBUG();
 606                 STATE2STR(SWI_STATE_NEWBORN);
 607                 STATE2STR(SWI_STATE_REPLY_SUBMITTED);
 608                 STATE2STR(SWI_STATE_REPLY_SENT);
 609                 STATE2STR(SWI_STATE_REQUEST_SUBMITTED);
 610                 STATE2STR(SWI_STATE_REQUEST_SENT);
 611                 STATE2STR(SWI_STATE_REPLY_RECEIVED);
 612                 STATE2STR(SWI_STATE_BULK_STARTED);
 613                 STATE2STR(SWI_STATE_DONE);
 614         }
 615 #undef STATE2STR
 616 }
 617
 618 #define lst_wait_until(cond, lock, fmt, ...)                            \
 619 do {                                                                    \
 620         int __I = 2;                                                    \
 621         while (!(cond)) {                                               \
 622                 CDEBUG(is_power_of_2(++__I) ? D_WARNING : D_NET,        \
 623                        fmt, ## __VA_ARGS__);                            \
 624                 spin_unlock(&(lock));                                   \
 625                                                                         \
 626                 schedule_timeout_uninterruptible(                       \
 627                         cfs_time_seconds(1) / 10);                      \
 628                                                                         \
 629                 spin_lock(&(lock));                                     \
 630         }                                                               \
 631 } while (0)
 632
 633 static inline void
 634 srpc_wait_service_shutdown(struct srpc_service *sv)
 635 {
 636         int i = 2;
 637
 638         LASSERT(sv->sv_shuttingdown);
 639
 640         while (srpc_finish_service(sv) == 0) {
 641                 i++;
 642                 CDEBUG(((i & -i) == i) ? D_WARNING : D_NET,
 643                        "Waiting for %s service to shutdown...\n",
 644                        sv->sv_name);
 645                 schedule_timeout_uninterruptible(cfs_time_seconds(1) / 10);
 646         }
 647 }
 648
 649 extern struct sfw_test_client_ops ping_test_client;
 650 extern struct srpc_service ping_test_service;
 651 void ping_init_test_client(void);
 652 void ping_init_test_service(void);
 653
 654 extern struct sfw_test_client_ops brw_test_client;
 655 extern struct srpc_service brw_test_service;
 656 void brw_init_test_client(void);
 657 void brw_init_test_service(void);
 658
 659 #endif /* __SELFTEST_SELFTEST_H__ */