test/test/test_service_cores.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2017 Intel Corporation
   3  */
   4
   5 #include <rte_common.h>
   6 #include <rte_hexdump.h>
   7 #include <rte_mbuf.h>
   8 #include <rte_malloc.h>
   9 #include <rte_memcpy.h>
  10 #include <rte_cycles.h>
  11
  12 #include <rte_service.h>
  13 #include <rte_service_component.h>
  14
  15 #include "test.h"
  16
  17 /* used as the service core ID */
  18 static uint32_t slcore_id;
  19 /* used as timestamp to detect if a service core is running */
  20 static uint64_t service_tick;
  21 /* used as a flag to check if a function was run */
  22 static uint32_t service_remote_launch_flag;
  23
  24 #define SERVICE_DELAY 1
  25
  26 #define DUMMY_SERVICE_NAME "dummy_service"
  27 #define MT_SAFE_SERVICE_NAME "mt_safe_service"
  28
  29 static int
  30 testsuite_setup(void)
  31 {
  32         slcore_id = rte_get_next_lcore(/* start core */ -1,
  33                                        /* skip master */ 1,
  34                                        /* wrap */ 0);
  35
  36         return TEST_SUCCESS;
  37 }
  38
  39 static void
  40 testsuite_teardown(void)
  41 {
  42         /* release service cores? */
  43 }
  44
  45 static int32_t dummy_cb(void *args)
  46 {
  47         RTE_SET_USED(args);
  48         service_tick++;
  49         rte_delay_ms(SERVICE_DELAY);
  50         return 0;
  51 }
  52
  53 static int32_t dummy_mt_unsafe_cb(void *args)
  54 {
  55         /* before running test, the initialization has set pass_test to 1.
  56          * If the cmpset in service-cores is working correctly, the code here
  57          * should never fail to take the lock. If the lock *is* taken, fail the
  58          * test, because two threads are concurrently in a non-MT safe callback.
  59          */
  60         uint32_t *test_params = args;
  61         uint32_t *atomic_lock = &test_params[0];
  62         uint32_t *pass_test = &test_params[1];
  63         int lock_taken = rte_atomic32_cmpset(atomic_lock, 0, 1);
  64         if (lock_taken) {
  65                 /* delay with the lock held */
  66                 rte_delay_ms(250);
  67                 rte_atomic32_clear((rte_atomic32_t *)atomic_lock);
  68         } else {
  69                 /* 2nd thread will fail to take lock, so set pass flag */
  70                 *pass_test = 0;
  71         }
  72
  73         return 0;
  74 }
  75
  76
  77 static int32_t dummy_mt_safe_cb(void *args)
  78 {
  79         /* Atomic checks to ensure MT safe services allow > 1 thread to
  80          * concurrently run the callback. The concept is as follows;
  81          * 1) if lock is available, take the lock then delay
  82          * 2) if first lock is taken, and a thread arrives in the CB, we know
  83          *    that 2 threads are running the callback at the same time: MT safe
  84          */
  85         uint32_t *test_params = args;
  86         uint32_t *atomic_lock = &test_params[0];
  87         uint32_t *pass_test = &test_params[1];
  88         int lock_taken = rte_atomic32_cmpset(atomic_lock, 0, 1);
  89         if (lock_taken) {
  90                 /* delay with the lock held */
  91                 rte_delay_ms(250);
  92                 rte_atomic32_clear((rte_atomic32_t *)atomic_lock);
  93         } else {
  94                 /* 2nd thread will fail to take lock, so set pass flag */
  95                 *pass_test = 1;
  96         }
  97
  98         return 0;
  99 }
 100
 101 /* unregister all services */
 102 static int
 103 unregister_all(void)
 104 {
 105         uint32_t i;
 106
 107         TEST_ASSERT_EQUAL(-EINVAL, rte_service_component_unregister(1000),
 108                         "Unregistered invalid service id");
 109
 110         uint32_t c = rte_service_get_count();
 111         for (i = 0; i < c; i++) {
 112                 TEST_ASSERT_EQUAL(0, rte_service_component_unregister(i),
 113                                 "Error unregistering a valid service");
 114         }
 115
 116         rte_service_lcore_reset_all();
 117
 118         return TEST_SUCCESS;
 119 }
 120
 121 /* register a single dummy service */
 122 static int
 123 dummy_register(void)
 124 {
 125         /* make sure there are no remains from previous tests */
 126         unregister_all();
 127
 128         struct rte_service_spec service;
 129         memset(&service, 0, sizeof(struct rte_service_spec));
 130
 131         TEST_ASSERT_EQUAL(-EINVAL,
 132                         rte_service_component_register(&service, NULL),
 133                         "Invalid callback");
 134         service.callback = dummy_cb;
 135
 136         TEST_ASSERT_EQUAL(-EINVAL,
 137                         rte_service_component_register(&service, NULL),
 138                         "Invalid name");
 139         snprintf(service.name, sizeof(service.name), DUMMY_SERVICE_NAME);
 140
 141         uint32_t id;
 142         TEST_ASSERT_EQUAL(0, rte_service_component_register(&service, &id),
 143                         "Failed to register valid service");
 144
 145         rte_service_component_runstate_set(id, 1);
 146
 147         return TEST_SUCCESS;
 148 }
 149
 150 /* verify get_by_name() service lookup */
 151 static int
 152 service_get_by_name(void)
 153 {
 154         unregister_all();
 155
 156         uint32_t sid;
 157         TEST_ASSERT_EQUAL(-ENODEV,
 158                         rte_service_get_by_name(DUMMY_SERVICE_NAME, &sid),
 159                         "get by name with invalid name should return -ENODEV");
 160         TEST_ASSERT_EQUAL(-EINVAL,
 161                         rte_service_get_by_name(DUMMY_SERVICE_NAME, 0x0),
 162                         "get by name with NULL ptr should return -ENODEV");
 163
 164         /* register service */
 165         struct rte_service_spec service;
 166         memset(&service, 0, sizeof(struct rte_service_spec));
 167         TEST_ASSERT_EQUAL(-EINVAL,
 168                         rte_service_component_register(&service, NULL),
 169                         "Invalid callback");
 170         service.callback = dummy_cb;
 171         TEST_ASSERT_EQUAL(-EINVAL,
 172                         rte_service_component_register(&service, NULL),
 173                         "Invalid name");
 174         snprintf(service.name, sizeof(service.name), DUMMY_SERVICE_NAME);
 175         TEST_ASSERT_EQUAL(0, rte_service_component_register(&service, NULL),
 176                         "Failed to register valid service");
 177
 178         /* we unregistered all service, now registering 1, should be id 0 */
 179         uint32_t service_id_as_expected = 0;
 180         TEST_ASSERT_EQUAL(0, rte_service_get_by_name(DUMMY_SERVICE_NAME, &sid),
 181                         "Service get_by_name should return 0 on valid inputs");
 182         TEST_ASSERT_EQUAL(service_id_as_expected, sid,
 183                         "Service get_by_name should equal expected id");
 184
 185         unregister_all();
 186
 187         /* ensure after unregister, get_by_name returns NULL */
 188         TEST_ASSERT_EQUAL(-ENODEV,
 189                         rte_service_get_by_name(DUMMY_SERVICE_NAME, &sid),
 190                         "get by name should return -ENODEV after unregister");
 191
 192         return TEST_SUCCESS;
 193 }
 194
 195 /* verify probe of capabilities */
 196 static int
 197 service_probe_capability(void)
 198 {
 199         unregister_all();
 200
 201         struct rte_service_spec service;
 202         memset(&service, 0, sizeof(struct rte_service_spec));
 203         service.callback = dummy_cb;
 204         snprintf(service.name, sizeof(service.name), DUMMY_SERVICE_NAME);
 205         service.capabilities |= RTE_SERVICE_CAP_MT_SAFE;
 206         TEST_ASSERT_EQUAL(0, rte_service_component_register(&service, NULL),
 207                         "Register of MT SAFE service failed");
 208
 209         /* verify flag is enabled */
 210         const uint32_t sid = 0;
 211         int32_t mt = rte_service_probe_capability(sid, RTE_SERVICE_CAP_MT_SAFE);
 212         TEST_ASSERT_EQUAL(1, mt, "MT SAFE capability flag not set.");
 213
 214
 215         unregister_all();
 216
 217         memset(&service, 0, sizeof(struct rte_service_spec));
 218         service.callback = dummy_cb;
 219         snprintf(service.name, sizeof(service.name), DUMMY_SERVICE_NAME);
 220         TEST_ASSERT_EQUAL(0, rte_service_component_register(&service, NULL),
 221                         "Register of non-MT safe service failed");
 222
 223         /* verify flag is enabled */
 224         mt = rte_service_probe_capability(sid, RTE_SERVICE_CAP_MT_SAFE);
 225         TEST_ASSERT_EQUAL(0, mt, "MT SAFE cap flag set on non MT SAFE service");
 226
 227         return unregister_all();
 228 }
 229
 230 /* verify the service name */
 231 static int
 232 service_name(void)
 233 {
 234         const char *name = rte_service_get_name(0);
 235         int equal = strcmp(name, DUMMY_SERVICE_NAME);
 236         TEST_ASSERT_EQUAL(0, equal, "Error: Service name not correct");
 237
 238         return unregister_all();
 239 }
 240
 241 /* verify service attr get */
 242 static int
 243 service_attr_get(void)
 244 {
 245         /* ensure all services unregistered so cycle counts are zero */
 246         unregister_all();
 247
 248         struct rte_service_spec service;
 249         memset(&service, 0, sizeof(struct rte_service_spec));
 250         service.callback = dummy_cb;
 251         snprintf(service.name, sizeof(service.name), DUMMY_SERVICE_NAME);
 252         service.capabilities |= RTE_SERVICE_CAP_MT_SAFE;
 253         uint32_t id;
 254         TEST_ASSERT_EQUAL(0, rte_service_component_register(&service, &id),
 255                         "Register of  service failed");
 256         rte_service_component_runstate_set(id, 1);
 257         TEST_ASSERT_EQUAL(0, rte_service_runstate_set(id, 1),
 258                         "Error: Service start returned non-zero");
 259         rte_service_set_stats_enable(id, 1);
 260
 261         uint32_t attr_id = UINT32_MAX;
 262         uint32_t attr_value = 0xdead;
 263         /* check error return values */
 264         TEST_ASSERT_EQUAL(-EINVAL, rte_service_attr_get(id, attr_id,
 265                                                         &attr_value),
 266                         "Invalid attr_id didn't return -EINVAL");
 267
 268         attr_id = RTE_SERVICE_ATTR_CYCLES;
 269         TEST_ASSERT_EQUAL(-EINVAL, rte_service_attr_get(UINT32_MAX, attr_id,
 270                                                         &attr_value),
 271                         "Invalid service id didn't return -EINVAL");
 272
 273         TEST_ASSERT_EQUAL(-EINVAL, rte_service_attr_get(id, attr_id, NULL),
 274                         "Invalid attr_value pointer id didn't return -EINVAL");
 275
 276         /* check correct (zero) return value and correct value (zero) */
 277         TEST_ASSERT_EQUAL(0, rte_service_attr_get(id, attr_id, &attr_value),
 278                         "Valid attr_get() call didn't return success");
 279         TEST_ASSERT_EQUAL(0, attr_value,
 280                         "attr_get() call didn't set correct cycles (zero)");
 281         /* check correct call count */
 282         const int attr_calls = RTE_SERVICE_ATTR_CALL_COUNT;
 283         TEST_ASSERT_EQUAL(0, rte_service_attr_get(id, attr_calls, &attr_value),
 284                         "Valid attr_get() call didn't return success");
 285         TEST_ASSERT_EQUAL(0, attr_value,
 286                         "attr_get() call didn't get call count (zero)");
 287
 288         /* Call service to increment cycle count */
 289         TEST_ASSERT_EQUAL(0, rte_service_lcore_add(slcore_id),
 290                         "Service core add did not return zero");
 291         TEST_ASSERT_EQUAL(0, rte_service_map_lcore_set(id, slcore_id, 1),
 292                         "Enabling valid service and core failed");
 293         TEST_ASSERT_EQUAL(0, rte_service_lcore_start(slcore_id),
 294                         "Starting service core failed");
 295
 296         /* wait for the service lcore to run */
 297         rte_delay_ms(200);
 298
 299         TEST_ASSERT_EQUAL(0, rte_service_attr_get(id, attr_id, &attr_value),
 300                         "Valid attr_get() call didn't return success");
 301         int cycles_gt_zero = attr_value > 0;
 302         TEST_ASSERT_EQUAL(1, cycles_gt_zero,
 303                         "attr_get() failed to get cycles (expected > zero)");
 304
 305         rte_service_lcore_stop(slcore_id);
 306
 307         TEST_ASSERT_EQUAL(0, rte_service_attr_get(id, attr_calls, &attr_value),
 308                         "Valid attr_get() call didn't return success");
 309         TEST_ASSERT_EQUAL(1, (attr_value > 0),
 310                         "attr_get() call didn't get call count (zero)");
 311
 312         TEST_ASSERT_EQUAL(0, rte_service_attr_reset_all(id),
 313                         "Valid attr_reset_all() return success");
 314
 315         TEST_ASSERT_EQUAL(0, rte_service_attr_get(id, attr_id, &attr_value),
 316                         "Valid attr_get() call didn't return success");
 317         TEST_ASSERT_EQUAL(0, attr_value,
 318                         "attr_get() call didn't set correct cycles (zero)");
 319         /* ensure call count > zero */
 320         TEST_ASSERT_EQUAL(0, rte_service_attr_get(id, attr_calls, &attr_value),
 321                         "Valid attr_get() call didn't return success");
 322         TEST_ASSERT_EQUAL(0, (attr_value > 0),
 323                         "attr_get() call didn't get call count (zero)");
 324
 325         return unregister_all();
 326 }
 327
 328 /* verify service dump */
 329 static int
 330 service_dump(void)
 331 {
 332         const uint32_t sid = 0;
 333         rte_service_set_stats_enable(sid, 1);
 334         rte_service_dump(stdout, 0);
 335         rte_service_set_stats_enable(sid, 0);
 336         rte_service_dump(stdout, 0);
 337         return unregister_all();
 338 }
 339
 340 /* start and stop a service */
 341 static int
 342 service_start_stop(void)
 343 {
 344         const uint32_t sid = 0;
 345
 346         /* runstate_get() returns if service is running and slcore is mapped */
 347         TEST_ASSERT_EQUAL(0, rte_service_lcore_add(slcore_id),
 348                         "Service core add did not return zero");
 349         int ret = rte_service_map_lcore_set(sid, slcore_id, 1);
 350         TEST_ASSERT_EQUAL(0, ret,
 351                         "Enabling service core, expected 0 got %d", ret);
 352
 353         TEST_ASSERT_EQUAL(0, rte_service_runstate_get(sid),
 354                         "Error: Service should be stopped");
 355
 356         TEST_ASSERT_EQUAL(0, rte_service_runstate_set(sid, 0),
 357                         "Error: Service stopped returned non-zero");
 358
 359         TEST_ASSERT_EQUAL(0, rte_service_runstate_get(sid),
 360                         "Error: Service is running - should be stopped");
 361
 362         TEST_ASSERT_EQUAL(0, rte_service_runstate_set(sid, 1),
 363                         "Error: Service start returned non-zero");
 364
 365         TEST_ASSERT_EQUAL(1, rte_service_runstate_get(sid),
 366                         "Error: Service is not running");
 367
 368         return unregister_all();
 369 }
 370
 371
 372 static int
 373 service_remote_launch_func(void *arg)
 374 {
 375         RTE_SET_USED(arg);
 376         service_remote_launch_flag = 1;
 377         return 0;
 378 }
 379
 380 /* enable and disable a lcore for a service */
 381 static int
 382 service_lcore_en_dis_able(void)
 383 {
 384         const uint32_t sid = 0;
 385
 386         /* expected failure cases */
 387         TEST_ASSERT_EQUAL(-EINVAL, rte_service_map_lcore_set(sid, 100000, 1),
 388                         "Enable on invalid core did not fail");
 389         TEST_ASSERT_EQUAL(-EINVAL, rte_service_map_lcore_set(sid, 100000, 0),
 390                         "Disable on invalid core did not fail");
 391
 392         /* add service core to allow enabling */
 393         TEST_ASSERT_EQUAL(0, rte_service_lcore_add(slcore_id),
 394                         "Add service core failed when not in use before");
 395
 396         /* valid enable */
 397         TEST_ASSERT_EQUAL(0, rte_service_map_lcore_set(sid, slcore_id, 1),
 398                         "Enabling valid service and core failed");
 399         TEST_ASSERT_EQUAL(1, rte_service_map_lcore_get(sid, slcore_id),
 400                         "Enabled core returned not-enabled");
 401
 402         /* valid disable */
 403         TEST_ASSERT_EQUAL(0, rte_service_map_lcore_set(sid, slcore_id, 0),
 404                         "Disabling valid service and lcore failed");
 405         TEST_ASSERT_EQUAL(0, rte_service_map_lcore_get(sid, slcore_id),
 406                         "Disabled core returned enabled");
 407
 408         /* call remote_launch to verify that app can launch ex-service lcore */
 409         service_remote_launch_flag = 0;
 410         rte_eal_wait_lcore(slcore_id);
 411         int ret = rte_eal_remote_launch(service_remote_launch_func, NULL,
 412                                         slcore_id);
 413         TEST_ASSERT_EQUAL(0, ret, "Ex-service core remote launch failed.");
 414         rte_eal_mp_wait_lcore();
 415         TEST_ASSERT_EQUAL(1, service_remote_launch_flag,
 416                         "Ex-service core function call had no effect.");
 417
 418         return unregister_all();
 419 }
 420
 421 static int
 422 service_lcore_running_check(void)
 423 {
 424         uint64_t tick = service_tick;
 425         rte_delay_ms(SERVICE_DELAY * 100);
 426         /* if (tick != service_tick) we know the lcore as polled the service */
 427         return tick != service_tick;
 428 }
 429
 430 static int
 431 service_lcore_add_del(void)
 432 {
 433         /* check initial count */
 434         TEST_ASSERT_EQUAL(0, rte_service_lcore_count(),
 435                         "Service lcore count has value before adding a lcore");
 436
 437         /* check service lcore add */
 438         TEST_ASSERT_EQUAL(0, rte_service_lcore_add(slcore_id),
 439                         "Add service core failed when not in use before");
 440         TEST_ASSERT_EQUAL(-EALREADY, rte_service_lcore_add(slcore_id),
 441                         "Add service core failed to refuse in-use lcore");
 442
 443         /* check count */
 444         TEST_ASSERT_EQUAL(1, rte_service_lcore_count(),
 445                         "Service core count not equal to one");
 446
 447         /* retrieve core list, checking lcore ids */
 448         const uint32_t size = 4;
 449         uint32_t service_core_ids[size];
 450         int32_t n = rte_service_lcore_list(service_core_ids, size);
 451         TEST_ASSERT_EQUAL(1, n, "Service core list return should equal 1");
 452         TEST_ASSERT_EQUAL(slcore_id, service_core_ids[0],
 453                                 "Service core list lcore must equal slcore_id");
 454
 455         /* recheck count, add more cores, and check count */
 456         TEST_ASSERT_EQUAL(1, rte_service_lcore_count(),
 457                         "Service core count not equal to one");
 458         uint32_t slcore_1 = rte_get_next_lcore(/* start core */ -1,
 459                                                /* skip master */ 1,
 460                                                /* wrap */ 0);
 461         TEST_ASSERT_EQUAL(0, rte_service_lcore_add(slcore_1),
 462                         "Service core add did not return zero");
 463         uint32_t slcore_2 = rte_get_next_lcore(/* start core */ slcore_1,
 464                                                /* skip master */ 1,
 465                                                /* wrap */ 0);
 466         TEST_ASSERT_EQUAL(0, rte_service_lcore_add(slcore_2),
 467                         "Service core add did not return zero");
 468
 469         uint32_t count = rte_service_lcore_count();
 470         const uint32_t cores_at_this_point = 3;
 471         TEST_ASSERT_EQUAL(cores_at_this_point, count,
 472                         "Service core count %d, expected %d", count,
 473                         cores_at_this_point);
 474
 475         /* check longer service core list */
 476         n = rte_service_lcore_list(service_core_ids, size);
 477         TEST_ASSERT_EQUAL(3, n, "Service core list return should equal 3");
 478         TEST_ASSERT_EQUAL(slcore_id, service_core_ids[0],
 479                                 "Service core list[0] lcore must equal 1");
 480         TEST_ASSERT_EQUAL(slcore_1, service_core_ids[1],
 481                                 "Service core list[1] lcore must equal 2");
 482         TEST_ASSERT_EQUAL(slcore_2, service_core_ids[2],
 483                                 "Service core list[2] lcore must equal 3");
 484
 485         /* recheck count, remove lcores, check remaining lcore_id is correct */
 486         TEST_ASSERT_EQUAL(3, rte_service_lcore_count(),
 487                         "Service core count not equal to three");
 488         TEST_ASSERT_EQUAL(0, rte_service_lcore_del(slcore_1),
 489                         "Service core add did not return zero");
 490         TEST_ASSERT_EQUAL(0, rte_service_lcore_del(slcore_2),
 491                         "Service core add did not return zero");
 492         TEST_ASSERT_EQUAL(1, rte_service_lcore_count(),
 493                         "Service core count not equal to one");
 494         n = rte_service_lcore_list(service_core_ids, size);
 495         TEST_ASSERT_EQUAL(1, n, "Service core list return should equal one");
 496         TEST_ASSERT_EQUAL(slcore_id, service_core_ids[0],
 497                                 "Service core list[0] lcore must equal %d",
 498                                 slcore_id);
 499
 500         return unregister_all();
 501 }
 502
 503 static int
 504 service_threaded_test(int mt_safe)
 505 {
 506         unregister_all();
 507
 508         /* add next 2 cores */
 509         uint32_t slcore_1 = rte_get_next_lcore(/* start core */ -1,
 510                                                /* skip master */ 1,
 511                                                /* wrap */ 0);
 512         TEST_ASSERT_EQUAL(0, rte_service_lcore_add(slcore_1),
 513                         "mt safe lcore add fail");
 514         uint32_t slcore_2 = rte_get_next_lcore(/* start core */ slcore_1,
 515                                                /* skip master */ 1,
 516                                                /* wrap */ 0);
 517         TEST_ASSERT_EQUAL(0, rte_service_lcore_add(slcore_2),
 518                         "mt safe lcore add fail");
 519
 520         /* Use atomic locks to verify that two threads are in the same function
 521          * at the same time. These are passed to the unit tests through the
 522          * callback userdata parameter
 523          */
 524         uint32_t test_params[2];
 525         memset(test_params, 0, sizeof(uint32_t) * 2);
 526
 527         /* register MT safe service. */
 528         struct rte_service_spec service;
 529         memset(&service, 0, sizeof(struct rte_service_spec));
 530         service.callback_userdata = test_params;
 531         snprintf(service.name, sizeof(service.name), MT_SAFE_SERVICE_NAME);
 532
 533         if (mt_safe) {
 534                 service.callback = dummy_mt_safe_cb;
 535                 service.capabilities |= RTE_SERVICE_CAP_MT_SAFE;
 536         } else
 537                 service.callback = dummy_mt_unsafe_cb;
 538
 539         uint32_t id;
 540         TEST_ASSERT_EQUAL(0, rte_service_component_register(&service, &id),
 541                         "Register of MT SAFE service failed");
 542
 543         const uint32_t sid = 0;
 544         TEST_ASSERT_EQUAL(0, rte_service_runstate_set(sid, 1),
 545                         "Starting valid service failed");
 546         TEST_ASSERT_EQUAL(0, rte_service_map_lcore_set(sid, slcore_1, 1),
 547                         "Failed to enable lcore 1 on mt safe service");
 548         TEST_ASSERT_EQUAL(0, rte_service_map_lcore_set(sid, slcore_2, 1),
 549                         "Failed to enable lcore 2 on mt safe service");
 550         rte_service_lcore_start(slcore_1);
 551         rte_service_lcore_start(slcore_2);
 552
 553         /* wait for the worker threads to run */
 554         rte_delay_ms(500);
 555         rte_service_lcore_stop(slcore_1);
 556         rte_service_lcore_stop(slcore_2);
 557
 558         TEST_ASSERT_EQUAL(0, test_params[1],
 559                         "Service run with component runstate = 0");
 560
 561         /* enable backend runstate: the service should run after this */
 562         rte_service_component_runstate_set(id, 1);
 563
 564         /* initialize to pass, see callback comment for details */
 565         if (!mt_safe)
 566                 test_params[1] = 1;
 567
 568         /* wait for lcores before start() */
 569         rte_eal_wait_lcore(slcore_1);
 570         rte_eal_wait_lcore(slcore_2);
 571
 572         rte_service_lcore_start(slcore_1);
 573         rte_service_lcore_start(slcore_2);
 574
 575         /* wait for the worker threads to run */
 576         rte_delay_ms(500);
 577         rte_service_lcore_stop(slcore_1);
 578         rte_service_lcore_stop(slcore_2);
 579
 580         TEST_ASSERT_EQUAL(1, test_params[1],
 581                         "MT Safe service not run by two cores concurrently");
 582         TEST_ASSERT_EQUAL(0, rte_service_runstate_set(sid, 0),
 583                         "Failed to stop MT Safe service");
 584
 585         rte_eal_wait_lcore(slcore_1);
 586         rte_eal_wait_lcore(slcore_2);
 587         unregister_all();
 588
 589         /* return the value of the callback pass_test variable to caller */
 590         return test_params[1];
 591 }
 592
 593 /* tests an MT SAFE service with two cores. The callback function ensures that
 594  * two threads access the callback concurrently.
 595  */
 596 static int
 597 service_mt_safe_poll(void)
 598 {
 599         int mt_safe = 1;
 600         TEST_ASSERT_EQUAL(1, service_threaded_test(mt_safe),
 601                         "Error: MT Safe service not run by two cores concurrently");
 602         return TEST_SUCCESS;
 603 }
 604
 605 /* tests a NON mt safe service with two cores, the callback is serialized
 606  * using the atomic cmpset.
 607  */
 608 static int
 609 service_mt_unsafe_poll(void)
 610 {
 611         int mt_safe = 0;
 612         TEST_ASSERT_EQUAL(1, service_threaded_test(mt_safe),
 613                         "Error: NON MT Safe service run by two cores concurrently");
 614         return TEST_SUCCESS;
 615 }
 616
 617 static int32_t
 618 delay_as_a_mt_safe_service(void *args)
 619 {
 620         RTE_SET_USED(args);
 621         uint32_t *params = args;
 622
 623         /* retrieve done flag and atomic lock to inc/dec */
 624         uint32_t *done = &params[0];
 625         rte_atomic32_t *lock = (rte_atomic32_t *)&params[1];
 626
 627         while (!*done) {
 628                 rte_atomic32_inc(lock);
 629                 rte_delay_us(500);
 630                 if (rte_atomic32_read(lock) > 1)
 631                         /* pass: second core has simultaneously incremented */
 632                         *done = 1;
 633                 rte_atomic32_dec(lock);
 634         }
 635
 636         return 0;
 637 }
 638
 639 static int32_t
 640 delay_as_a_service(void *args)
 641 {
 642         uint32_t *done = (uint32_t *)args;
 643         while (!*done)
 644                 rte_delay_ms(5);
 645         return 0;
 646 }
 647
 648 static int
 649 service_run_on_app_core_func(void *arg)
 650 {
 651         uint32_t *delay_service_id = (uint32_t *)arg;
 652         return rte_service_run_iter_on_app_lcore(*delay_service_id, 1);
 653 }
 654
 655 static int
 656 service_app_lcore_poll_impl(const int mt_safe)
 657 {
 658         uint32_t params[2] = {0};
 659
 660         struct rte_service_spec service;
 661         memset(&service, 0, sizeof(struct rte_service_spec));
 662         snprintf(service.name, sizeof(service.name), MT_SAFE_SERVICE_NAME);
 663         if (mt_safe) {
 664                 service.callback = delay_as_a_mt_safe_service;
 665                 service.callback_userdata = params;
 666                 service.capabilities |= RTE_SERVICE_CAP_MT_SAFE;
 667         } else {
 668                 service.callback = delay_as_a_service;
 669                 service.callback_userdata = &params;
 670         }
 671
 672         uint32_t id;
 673         TEST_ASSERT_EQUAL(0, rte_service_component_register(&service, &id),
 674                         "Register of app lcore delay service failed");
 675
 676         rte_service_component_runstate_set(id, 1);
 677         rte_service_runstate_set(id, 1);
 678
 679         uint32_t app_core2 = rte_get_next_lcore(slcore_id, 1, 1);
 680         rte_eal_wait_lcore(app_core2);
 681         int app_core2_ret = rte_eal_remote_launch(service_run_on_app_core_func,
 682                                                   &id, app_core2);
 683
 684         rte_delay_ms(100);
 685
 686         int app_core1_ret = service_run_on_app_core_func(&id);
 687
 688         /* flag done, then wait for the spawned 2nd core to return */
 689         params[0] = 1;
 690         rte_eal_mp_wait_lcore();
 691
 692         /* core two gets launched first - and should hold the service lock */
 693         TEST_ASSERT_EQUAL(0, app_core2_ret,
 694                         "App core2 : run service didn't return zero");
 695
 696         if (mt_safe) {
 697                 /* mt safe should have both cores return 0 for success */
 698                 TEST_ASSERT_EQUAL(0, app_core1_ret,
 699                                 "MT Safe: App core1 didn't return 0");
 700         } else {
 701                 /* core one attempts to run later - should be blocked */
 702                 TEST_ASSERT_EQUAL(-EBUSY, app_core1_ret,
 703                                 "MT Unsafe: App core1 didn't return -EBUSY");
 704         }
 705
 706         unregister_all();
 707
 708         return TEST_SUCCESS;
 709 }
 710
 711 static int
 712 service_app_lcore_mt_safe(void)
 713 {
 714         const int mt_safe = 1;
 715         return service_app_lcore_poll_impl(mt_safe);
 716 }
 717
 718 static int
 719 service_app_lcore_mt_unsafe(void)
 720 {
 721         const int mt_safe = 0;
 722         return service_app_lcore_poll_impl(mt_safe);
 723 }
 724
 725 /* start and stop a service core - ensuring it goes back to sleep */
 726 static int
 727 service_lcore_start_stop(void)
 728 {
 729         /* start service core and service, create mapping so tick() runs */
 730         const uint32_t sid = 0;
 731         TEST_ASSERT_EQUAL(0, rte_service_runstate_set(sid, 1),
 732                         "Starting valid service failed");
 733         TEST_ASSERT_EQUAL(-EINVAL, rte_service_map_lcore_set(sid, slcore_id, 1),
 734                         "Enabling valid service on non-service core must fail");
 735
 736         /* core start */
 737         TEST_ASSERT_EQUAL(-EINVAL, rte_service_lcore_start(slcore_id),
 738                         "Service core start without add should return EINVAL");
 739         TEST_ASSERT_EQUAL(0, rte_service_lcore_add(slcore_id),
 740                         "Service core add did not return zero");
 741         TEST_ASSERT_EQUAL(0, rte_service_map_lcore_set(sid, slcore_id, 1),
 742                         "Enabling valid service on valid core failed");
 743         TEST_ASSERT_EQUAL(0, rte_service_lcore_start(slcore_id),
 744                         "Service core start after add failed");
 745         TEST_ASSERT_EQUAL(-EALREADY, rte_service_lcore_start(slcore_id),
 746                         "Service core expected as running but was stopped");
 747
 748         /* ensures core really is running the service function */
 749         TEST_ASSERT_EQUAL(1, service_lcore_running_check(),
 750                         "Service core expected to poll service but it didn't");
 751
 752         /* core stop */
 753         TEST_ASSERT_EQUAL(-EBUSY, rte_service_lcore_stop(slcore_id),
 754                         "Service core running a service should return -EBUSY");
 755         TEST_ASSERT_EQUAL(0, rte_service_runstate_set(sid, 0),
 756                         "Stopping valid service failed");
 757         TEST_ASSERT_EQUAL(-EINVAL, rte_service_lcore_stop(100000),
 758                         "Invalid Service core stop should return -EINVAL");
 759         TEST_ASSERT_EQUAL(0, rte_service_lcore_stop(slcore_id),
 760                         "Service core stop expected to return 0");
 761         TEST_ASSERT_EQUAL(-EALREADY, rte_service_lcore_stop(slcore_id),
 762                         "Already stopped service core should return -EALREADY");
 763
 764         /* ensure service is not longer running */
 765         TEST_ASSERT_EQUAL(0, service_lcore_running_check(),
 766                         "Service core expected to poll service but it didn't");
 767
 768         TEST_ASSERT_EQUAL(0, rte_service_lcore_del(slcore_id),
 769                         "Service core del did not return zero");
 770
 771         return unregister_all();
 772 }
 773
 774 static struct unit_test_suite service_tests  = {
 775         .suite_name = "service core test suite",
 776         .setup = testsuite_setup,
 777         .teardown = testsuite_teardown,
 778         .unit_test_cases = {
 779                 TEST_CASE_ST(dummy_register, NULL, unregister_all),
 780                 TEST_CASE_ST(dummy_register, NULL, service_name),
 781                 TEST_CASE_ST(dummy_register, NULL, service_get_by_name),
 782                 TEST_CASE_ST(dummy_register, NULL, service_dump),
 783                 TEST_CASE_ST(dummy_register, NULL, service_attr_get),
 784                 TEST_CASE_ST(dummy_register, NULL, service_probe_capability),
 785                 TEST_CASE_ST(dummy_register, NULL, service_start_stop),
 786                 TEST_CASE_ST(dummy_register, NULL, service_lcore_add_del),
 787                 TEST_CASE_ST(dummy_register, NULL, service_lcore_start_stop),
 788                 TEST_CASE_ST(dummy_register, NULL, service_lcore_en_dis_able),
 789                 TEST_CASE_ST(dummy_register, NULL, service_mt_unsafe_poll),
 790                 TEST_CASE_ST(dummy_register, NULL, service_mt_safe_poll),
 791                 TEST_CASE_ST(dummy_register, NULL, service_app_lcore_mt_safe),
 792                 TEST_CASE_ST(dummy_register, NULL, service_app_lcore_mt_unsafe),
 793                 TEST_CASES_END() /**< NULL terminate unit test array */
 794         }
 795 };
 796
 797 static int
 798 test_service_common(void)
 799 {
 800         return unit_test_suite_runner(&service_tests);
 801 }
 802
 803 REGISTER_TEST_COMMAND(service_autotest, test_service_common);