lib/librte_eal/common/rte_service.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2017 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <stdio.h>
  35 #include <unistd.h>
  36 #include <inttypes.h>
  37 #include <limits.h>
  38 #include <string.h>
  39 #include <dirent.h>
  40
  41 #include <rte_service.h>
  42 #include "include/rte_service_component.h"
  43
  44 #include <rte_eal.h>
  45 #include <rte_lcore.h>
  46 #include <rte_common.h>
  47 #include <rte_debug.h>
  48 #include <rte_cycles.h>
  49 #include <rte_atomic.h>
  50 #include <rte_memory.h>
  51 #include <rte_malloc.h>
  52
  53 #define RTE_SERVICE_NUM_MAX 64
  54
  55 #define SERVICE_F_REGISTERED    (1 << 0)
  56 #define SERVICE_F_STATS_ENABLED (1 << 1)
  57
  58 /* runstates for services and lcores, denoting if they are active or not */
  59 #define RUNSTATE_STOPPED 0
  60 #define RUNSTATE_RUNNING 1
  61
  62 /* internal representation of a service */
  63 struct rte_service_spec_impl {
  64         /* public part of the struct */
  65         struct rte_service_spec spec;
  66
  67         /* atomic lock that when set indicates a service core is currently
  68          * running this service callback. When not set, a core may take the
  69          * lock and then run the service callback.
  70          */
  71         rte_atomic32_t execute_lock;
  72
  73         /* API set/get-able variables */
  74         int32_t runstate;
  75         uint8_t internal_flags;
  76
  77         /* per service statistics */
  78         uint32_t num_mapped_cores;
  79         uint64_t calls;
  80         uint64_t cycles_spent;
  81 } __rte_cache_aligned;
  82
  83 /* the internal values of a service core */
  84 struct core_state {
  85         /* map of services IDs are run on this core */
  86         uint64_t service_mask;
  87         uint8_t runstate; /* running or stopped */
  88         uint8_t is_service_core; /* set if core is currently a service core */
  89
  90         /* extreme statistics */
  91         uint64_t calls_per_service[RTE_SERVICE_NUM_MAX];
  92 } __rte_cache_aligned;
  93
  94 static uint32_t rte_service_count;
  95 static struct rte_service_spec_impl *rte_services;
  96 static struct core_state *lcore_states;
  97 static uint32_t rte_service_library_initialized;
  98
  99 int32_t rte_service_init(void)
 100 {
 101         if (rte_service_library_initialized) {
 102                 printf("service library init() called, init flag %d\n",
 103                         rte_service_library_initialized);
 104                 return -EALREADY;
 105         }
 106
 107         rte_services = rte_calloc("rte_services", RTE_SERVICE_NUM_MAX,
 108                         sizeof(struct rte_service_spec_impl),
 109                         RTE_CACHE_LINE_SIZE);
 110         if (!rte_services) {
 111                 printf("error allocating rte services array\n");
 112                 return -ENOMEM;
 113         }
 114
 115         lcore_states = rte_calloc("rte_service_core_states", RTE_MAX_LCORE,
 116                         sizeof(struct core_state), RTE_CACHE_LINE_SIZE);
 117         if (!lcore_states) {
 118                 printf("error allocating core states array\n");
 119                 return -ENOMEM;
 120         }
 121
 122         int i;
 123         int count = 0;
 124         struct rte_config *cfg = rte_eal_get_configuration();
 125         for (i = 0; i < RTE_MAX_LCORE; i++) {
 126                 if (lcore_config[i].core_role == ROLE_SERVICE) {
 127                         if ((unsigned int)i == cfg->master_lcore)
 128                                 continue;
 129                         rte_service_lcore_add(i);
 130                         count++;
 131                 }
 132         }
 133
 134         rte_service_library_initialized = 1;
 135         return 0;
 136 }
 137
 138 /* returns 1 if service is registered and has not been unregistered
 139  * Returns 0 if service never registered, or has been unregistered
 140  */
 141 static inline int
 142 service_valid(uint32_t id)
 143 {
 144         return !!(rte_services[id].internal_flags & SERVICE_F_REGISTERED);
 145 }
 146
 147 /* validate ID and retrieve service pointer, or return error value */
 148 #define SERVICE_VALID_GET_OR_ERR_RET(id, service, retval) do {          \
 149         if (id >= RTE_SERVICE_NUM_MAX || !service_valid(id))            \
 150                 return retval;                                          \
 151         service = &rte_services[id];                                    \
 152 } while (0)
 153
 154 /* returns 1 if statistics should be colleced for service
 155  * Returns 0 if statistics should not be collected for service
 156  */
 157 static inline int
 158 service_stats_enabled(struct rte_service_spec_impl *impl)
 159 {
 160         return !!(impl->internal_flags & SERVICE_F_STATS_ENABLED);
 161 }
 162
 163 static inline int
 164 service_mt_safe(struct rte_service_spec_impl *s)
 165 {
 166         return s->spec.capabilities & RTE_SERVICE_CAP_MT_SAFE;
 167 }
 168
 169 int32_t rte_service_set_stats_enable(struct rte_service_spec *service,
 170                                   int32_t enabled)
 171 {
 172         struct rte_service_spec_impl *impl =
 173                 (struct rte_service_spec_impl *)service;
 174         if (!impl)
 175                 return -EINVAL;
 176
 177         if (enabled)
 178                 impl->internal_flags |= SERVICE_F_STATS_ENABLED;
 179         else
 180                 impl->internal_flags &= ~(SERVICE_F_STATS_ENABLED);
 181
 182         return 0;
 183 }
 184
 185 uint32_t
 186 rte_service_get_count(void)
 187 {
 188         return rte_service_count;
 189 }
 190
 191 struct rte_service_spec *
 192 rte_service_get_by_id(uint32_t id)
 193 {
 194         struct rte_service_spec *service = NULL;
 195         if (id < rte_service_count)
 196                 service = (struct rte_service_spec *)&rte_services[id];
 197
 198         return service;
 199 }
 200
 201 struct rte_service_spec *rte_service_get_by_name(const char *name)
 202 {
 203         struct rte_service_spec *service = NULL;
 204         int i;
 205         for (i = 0; i < RTE_SERVICE_NUM_MAX; i++) {
 206                 if (service_valid(i) &&
 207                                 strcmp(name, rte_services[i].spec.name) == 0) {
 208                         service = (struct rte_service_spec *)&rte_services[i];
 209                         break;
 210                 }
 211         }
 212
 213         return service;
 214 }
 215
 216 const char *
 217 rte_service_get_name(uint32_t id)
 218 {
 219         struct rte_service_spec_impl *s;
 220         SERVICE_VALID_GET_OR_ERR_RET(id, s, 0);
 221         return s->spec.name;
 222 }
 223
 224 int32_t
 225 rte_service_probe_capability(uint32_t id, uint32_t capability)
 226 {
 227         struct rte_service_spec_impl *s;
 228         SERVICE_VALID_GET_OR_ERR_RET(id, s, -EINVAL);
 229         return s->spec.capabilities & capability;
 230 }
 231
 232 int32_t
 233 rte_service_is_running(const struct rte_service_spec *spec)
 234 {
 235         const struct rte_service_spec_impl *impl =
 236                 (const struct rte_service_spec_impl *)spec;
 237         if (!impl)
 238                 return -EINVAL;
 239
 240         return (impl->runstate == RUNSTATE_RUNNING) &&
 241                 (impl->num_mapped_cores > 0);
 242 }
 243
 244 int32_t
 245 rte_service_component_register(const struct rte_service_spec *spec,
 246                                uint32_t *id_ptr)
 247 {
 248         uint32_t i;
 249         int32_t free_slot = -1;
 250
 251         if (spec->callback == NULL || strlen(spec->name) == 0)
 252                 return -EINVAL;
 253
 254         for (i = 0; i < RTE_SERVICE_NUM_MAX; i++) {
 255                 if (!service_valid(i)) {
 256                         free_slot = i;
 257                         break;
 258                 }
 259         }
 260
 261         if ((free_slot < 0) || (i == RTE_SERVICE_NUM_MAX))
 262                 return -ENOSPC;
 263
 264         struct rte_service_spec_impl *s = &rte_services[free_slot];
 265         s->spec = *spec;
 266         s->internal_flags |= SERVICE_F_REGISTERED;
 267
 268         rte_smp_wmb();
 269         rte_service_count++;
 270
 271         if (id_ptr)
 272                 *id_ptr = free_slot;
 273
 274         return 0;
 275 }
 276
 277 int32_t
 278 rte_service_unregister(struct rte_service_spec *spec)
 279 {
 280         struct rte_service_spec_impl *s = NULL;
 281         struct rte_service_spec_impl *spec_impl =
 282                 (struct rte_service_spec_impl *)spec;
 283
 284         uint32_t i;
 285         uint32_t service_id;
 286         for (i = 0; i < RTE_SERVICE_NUM_MAX; i++) {
 287                 if (&rte_services[i] == spec_impl) {
 288                         s = spec_impl;
 289                         service_id = i;
 290                         break;
 291                 }
 292         }
 293
 294         if (!s)
 295                 return -EINVAL;
 296
 297         rte_service_count--;
 298         rte_smp_wmb();
 299
 300         s->internal_flags &= ~(SERVICE_F_REGISTERED);
 301
 302         for (i = 0; i < RTE_MAX_LCORE; i++)
 303                 lcore_states[i].service_mask &= ~(UINT64_C(1) << service_id);
 304
 305         memset(&rte_services[service_id], 0,
 306                         sizeof(struct rte_service_spec_impl));
 307
 308         return 0;
 309 }
 310
 311 int32_t
 312 rte_service_start(struct rte_service_spec *service)
 313 {
 314         struct rte_service_spec_impl *s =
 315                 (struct rte_service_spec_impl *)service;
 316         s->runstate = RUNSTATE_RUNNING;
 317         rte_smp_wmb();
 318         return 0;
 319 }
 320
 321 int32_t
 322 rte_service_stop(struct rte_service_spec *service)
 323 {
 324         struct rte_service_spec_impl *s =
 325                 (struct rte_service_spec_impl *)service;
 326         s->runstate = RUNSTATE_STOPPED;
 327         rte_smp_wmb();
 328         return 0;
 329 }
 330
 331 static int32_t
 332 rte_service_runner_func(void *arg)
 333 {
 334         RTE_SET_USED(arg);
 335         uint32_t i;
 336         const int lcore = rte_lcore_id();
 337         struct core_state *cs = &lcore_states[lcore];
 338
 339         while (lcore_states[lcore].runstate == RUNSTATE_RUNNING) {
 340                 const uint64_t service_mask = cs->service_mask;
 341                 for (i = 0; i < rte_service_count; i++) {
 342                         struct rte_service_spec_impl *s = &rte_services[i];
 343                         if (s->runstate != RUNSTATE_RUNNING ||
 344                                         !(service_mask & (UINT64_C(1) << i)))
 345                                 continue;
 346
 347                         /* check do we need cmpset, if MT safe or <= 1 core
 348                          * mapped, atomic ops are not required.
 349                          */
 350                         const int need_cmpset = !((service_mt_safe(s) == 0) &&
 351                                                 (s->num_mapped_cores > 1));
 352                         uint32_t *lock = (uint32_t *)&s->execute_lock;
 353
 354                         if (need_cmpset || rte_atomic32_cmpset(lock, 0, 1)) {
 355                                 void *userdata = s->spec.callback_userdata;
 356
 357                                 if (service_stats_enabled(s)) {
 358                                         uint64_t start = rte_rdtsc();
 359                                         s->spec.callback(userdata);
 360                                         uint64_t end = rte_rdtsc();
 361                                         s->cycles_spent += end - start;
 362                                         cs->calls_per_service[i]++;
 363                                         s->calls++;
 364                                 } else
 365                                         s->spec.callback(userdata);
 366
 367                                 if (need_cmpset)
 368                                         rte_atomic32_clear(&s->execute_lock);
 369                         }
 370                 }
 371
 372                 rte_smp_rmb();
 373         }
 374
 375         lcore_config[lcore].state = WAIT;
 376
 377         return 0;
 378 }
 379
 380 int32_t
 381 rte_service_lcore_count(void)
 382 {
 383         int32_t count = 0;
 384         uint32_t i;
 385         for (i = 0; i < RTE_MAX_LCORE; i++)
 386                 count += lcore_states[i].is_service_core;
 387         return count;
 388 }
 389
 390 int32_t
 391 rte_service_lcore_list(uint32_t array[], uint32_t n)
 392 {
 393         uint32_t count = rte_service_lcore_count();
 394         if (count > n)
 395                 return -ENOMEM;
 396
 397         if (!array)
 398                 return -EINVAL;
 399
 400         uint32_t i;
 401         uint32_t idx = 0;
 402         for (i = 0; i < RTE_MAX_LCORE; i++) {
 403                 struct core_state *cs = &lcore_states[i];
 404                 if (cs->is_service_core) {
 405                         array[idx] = i;
 406                         idx++;
 407                 }
 408         }
 409
 410         return count;
 411 }
 412
 413 int32_t
 414 rte_service_lcore_count_services(uint32_t lcore)
 415 {
 416         if (lcore >= RTE_MAX_LCORE)
 417                 return -EINVAL;
 418
 419         struct core_state *cs = &lcore_states[lcore];
 420         if (!cs->is_service_core)
 421                 return -ENOTSUP;
 422
 423         return __builtin_popcountll(cs->service_mask);
 424 }
 425
 426 int32_t
 427 rte_service_start_with_defaults(void)
 428 {
 429         /* create a default mapping from cores to services, then start the
 430          * services to make them transparent to unaware applications.
 431          */
 432         uint32_t i;
 433         int ret;
 434         uint32_t count = rte_service_get_count();
 435
 436         int32_t lcore_iter = 0;
 437         uint32_t ids[RTE_MAX_LCORE];
 438         int32_t lcore_count = rte_service_lcore_list(ids, RTE_MAX_LCORE);
 439
 440         if (lcore_count == 0)
 441                 return -ENOTSUP;
 442
 443         for (i = 0; (int)i < lcore_count; i++)
 444                 rte_service_lcore_start(ids[i]);
 445
 446         for (i = 0; i < count; i++) {
 447                 struct rte_service_spec *s = rte_service_get_by_id(i);
 448                 if (!s)
 449                         return -EINVAL;
 450
 451                 /* do 1:1 core mapping here, with each service getting
 452                  * assigned a single core by default. Adding multiple services
 453                  * should multiplex to a single core, or 1:1 if there are the
 454                  * same amount of services as service-cores
 455                  */
 456                 ret = rte_service_map_lcore_set(i, ids[lcore_iter], 1);
 457                 if (ret)
 458                         return -ENODEV;
 459
 460                 lcore_iter++;
 461                 if (lcore_iter >= lcore_count)
 462                         lcore_iter = 0;
 463
 464                 ret = rte_service_start(s);
 465                 if (ret)
 466                         return -ENOEXEC;
 467         }
 468
 469         return 0;
 470 }
 471
 472 static int32_t
 473 service_update(struct rte_service_spec *service, uint32_t lcore,
 474                 uint32_t *set, uint32_t *enabled)
 475 {
 476         uint32_t i;
 477         int32_t sid = -1;
 478
 479         for (i = 0; i < RTE_SERVICE_NUM_MAX; i++) {
 480                 if ((struct rte_service_spec *)&rte_services[i] == service &&
 481                                 service_valid(i)) {
 482                         sid = i;
 483                         break;
 484                 }
 485         }
 486
 487         if (sid == -1 || lcore >= RTE_MAX_LCORE)
 488                 return -EINVAL;
 489
 490         if (!lcore_states[lcore].is_service_core)
 491                 return -EINVAL;
 492
 493         uint64_t sid_mask = UINT64_C(1) << sid;
 494         if (set) {
 495                 if (*set) {
 496                         lcore_states[lcore].service_mask |= sid_mask;
 497                         rte_services[sid].num_mapped_cores++;
 498                 } else {
 499                         lcore_states[lcore].service_mask &= ~(sid_mask);
 500                         rte_services[sid].num_mapped_cores--;
 501                 }
 502         }
 503
 504         if (enabled)
 505                 *enabled = (lcore_states[lcore].service_mask & (sid_mask));
 506
 507         rte_smp_wmb();
 508
 509         return 0;
 510 }
 511
 512 int32_t
 513 rte_service_map_lcore_set(uint32_t id, uint32_t lcore, uint32_t enabled)
 514 {
 515         struct rte_service_spec_impl *s;
 516         SERVICE_VALID_GET_OR_ERR_RET(id, s, -EINVAL);
 517         uint32_t on = enabled > 0;
 518         return service_update(&s->spec, lcore, &on, 0);
 519 }
 520
 521 int32_t
 522 rte_service_map_lcore_get(uint32_t id, uint32_t lcore)
 523 {
 524         struct rte_service_spec_impl *s;
 525         SERVICE_VALID_GET_OR_ERR_RET(id, s, -EINVAL);
 526         uint32_t enabled;
 527         int ret = service_update(&s->spec, lcore, 0, &enabled);
 528         if (ret == 0)
 529                 return enabled;
 530         return ret;
 531 }
 532
 533 int32_t rte_service_lcore_reset_all(void)
 534 {
 535         /* loop over cores, reset all to mask 0 */
 536         uint32_t i;
 537         for (i = 0; i < RTE_MAX_LCORE; i++) {
 538                 lcore_states[i].service_mask = 0;
 539                 lcore_states[i].is_service_core = 0;
 540                 lcore_states[i].runstate = RUNSTATE_STOPPED;
 541         }
 542         for (i = 0; i < RTE_SERVICE_NUM_MAX; i++)
 543                 rte_services[i].num_mapped_cores = 0;
 544
 545         rte_smp_wmb();
 546
 547         return 0;
 548 }
 549
 550 static void
 551 set_lcore_state(uint32_t lcore, int32_t state)
 552 {
 553         /* mark core state in hugepage backed config */
 554         struct rte_config *cfg = rte_eal_get_configuration();
 555         cfg->lcore_role[lcore] = state;
 556
 557         /* mark state in process local lcore_config */
 558         lcore_config[lcore].core_role = state;
 559
 560         /* update per-lcore optimized state tracking */
 561         lcore_states[lcore].is_service_core = (state == ROLE_SERVICE);
 562 }
 563
 564 int32_t
 565 rte_service_lcore_add(uint32_t lcore)
 566 {
 567         if (lcore >= RTE_MAX_LCORE)
 568                 return -EINVAL;
 569         if (lcore_states[lcore].is_service_core)
 570                 return -EALREADY;
 571
 572         set_lcore_state(lcore, ROLE_SERVICE);
 573
 574         /* ensure that after adding a core the mask and state are defaults */
 575         lcore_states[lcore].service_mask = 0;
 576         lcore_states[lcore].runstate = RUNSTATE_STOPPED;
 577
 578         rte_smp_wmb();
 579         return 0;
 580 }
 581
 582 int32_t
 583 rte_service_lcore_del(uint32_t lcore)
 584 {
 585         if (lcore >= RTE_MAX_LCORE)
 586                 return -EINVAL;
 587
 588         struct core_state *cs = &lcore_states[lcore];
 589         if (!cs->is_service_core)
 590                 return -EINVAL;
 591
 592         if (cs->runstate != RUNSTATE_STOPPED)
 593                 return -EBUSY;
 594
 595         set_lcore_state(lcore, ROLE_RTE);
 596
 597         rte_smp_wmb();
 598         return 0;
 599 }
 600
 601 int32_t
 602 rte_service_lcore_start(uint32_t lcore)
 603 {
 604         if (lcore >= RTE_MAX_LCORE)
 605                 return -EINVAL;
 606
 607         struct core_state *cs = &lcore_states[lcore];
 608         if (!cs->is_service_core)
 609                 return -EINVAL;
 610
 611         if (cs->runstate == RUNSTATE_RUNNING)
 612                 return -EALREADY;
 613
 614         /* set core to run state first, and then launch otherwise it will
 615          * return immediately as runstate keeps it in the service poll loop
 616          */
 617         lcore_states[lcore].runstate = RUNSTATE_RUNNING;
 618
 619         int ret = rte_eal_remote_launch(rte_service_runner_func, 0, lcore);
 620         /* returns -EBUSY if the core is already launched, 0 on success */
 621         return ret;
 622 }
 623
 624 int32_t
 625 rte_service_lcore_stop(uint32_t lcore)
 626 {
 627         if (lcore >= RTE_MAX_LCORE)
 628                 return -EINVAL;
 629
 630         if (lcore_states[lcore].runstate == RUNSTATE_STOPPED)
 631                 return -EALREADY;
 632
 633         uint32_t i;
 634         for (i = 0; i < RTE_SERVICE_NUM_MAX; i++) {
 635                 int32_t enabled =
 636                         lcore_states[i].service_mask & (UINT64_C(1) << i);
 637                 int32_t service_running = rte_services[i].runstate !=
 638                                                 RUNSTATE_STOPPED;
 639                 int32_t only_core = rte_services[i].num_mapped_cores == 1;
 640
 641                 /* if the core is mapped, and the service is running, and this
 642                  * is the only core that is mapped, the service would cease to
 643                  * run if this core stopped, so fail instead.
 644                  */
 645                 if (enabled && service_running && only_core)
 646                         return -EBUSY;
 647         }
 648
 649         lcore_states[lcore].runstate = RUNSTATE_STOPPED;
 650
 651         return 0;
 652 }
 653
 654 static void
 655 rte_service_dump_one(FILE *f, struct rte_service_spec_impl *s,
 656                      uint64_t all_cycles, uint32_t reset)
 657 {
 658         /* avoid divide by zero */
 659         if (all_cycles == 0)
 660                 all_cycles = 1;
 661
 662         int calls = 1;
 663         if (s->calls != 0)
 664                 calls = s->calls;
 665
 666         fprintf(f, "  %s: stats %d\tcalls %"PRIu64"\tcycles %"
 667                         PRIu64"\tavg: %"PRIu64"\n",
 668                         s->spec.name, service_stats_enabled(s), s->calls,
 669                         s->cycles_spent, s->cycles_spent / calls);
 670
 671         if (reset) {
 672                 s->cycles_spent = 0;
 673                 s->calls = 0;
 674         }
 675 }
 676
 677 static void
 678 service_dump_calls_per_lcore(FILE *f, uint32_t lcore, uint32_t reset)
 679 {
 680         uint32_t i;
 681         struct core_state *cs = &lcore_states[lcore];
 682
 683         fprintf(f, "%02d\t", lcore);
 684         for (i = 0; i < RTE_SERVICE_NUM_MAX; i++) {
 685                 if (!service_valid(i))
 686                         continue;
 687                 fprintf(f, "%"PRIu64"\t", cs->calls_per_service[i]);
 688                 if (reset)
 689                         cs->calls_per_service[i] = 0;
 690         }
 691         fprintf(f, "\n");
 692 }
 693
 694 int32_t rte_service_dump(FILE *f, struct rte_service_spec *service)
 695 {
 696         uint32_t i;
 697
 698         uint64_t total_cycles = 0;
 699         for (i = 0; i < rte_service_count; i++) {
 700                 if (!service_valid(i))
 701                         continue;
 702                 total_cycles += rte_services[i].cycles_spent;
 703         }
 704
 705         if (service) {
 706                 struct rte_service_spec_impl *s =
 707                         (struct rte_service_spec_impl *)service;
 708                 fprintf(f, "Service %s Summary\n", s->spec.name);
 709                 uint32_t reset = 0;
 710                 rte_service_dump_one(f, s, total_cycles, reset);
 711                 return 0;
 712         }
 713
 714         fprintf(f, "Services Summary\n");
 715         for (i = 0; i < rte_service_count; i++) {
 716                 uint32_t reset = 1;
 717                 rte_service_dump_one(f, &rte_services[i], total_cycles, reset);
 718         }
 719
 720         fprintf(f, "Service Cores Summary\n");
 721         for (i = 0; i < RTE_MAX_LCORE; i++) {
 722                 if (lcore_config[i].core_role != ROLE_SERVICE)
 723                         continue;
 724
 725                 uint32_t reset = 0;
 726                 service_dump_calls_per_lcore(f, i, reset);
 727         }
 728
 729         return 0;
 730 }