ceph/src/spdk/dpdk/lib/librte_eal/freebsd/eal/eal.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2018 Intel Corporation.
   3  * Copyright(c) 2014 6WIND S.A.
   4  */
   5
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8 #include <stdint.h>
   9 #include <string.h>
  10 #include <stdarg.h>
  11 #include <unistd.h>
  12 #include <pthread.h>
  13 #include <syslog.h>
  14 #include <getopt.h>
  15 #include <sys/file.h>
  16 #include <stddef.h>
  17 #include <errno.h>
  18 #include <limits.h>
  19 #include <sys/mman.h>
  20 #include <sys/queue.h>
  21 #include <sys/stat.h>
  22
  23 #include <rte_compat.h>
  24 #include <rte_common.h>
  25 #include <rte_debug.h>
  26 #include <rte_memory.h>
  27 #include <rte_launch.h>
  28 #include <rte_eal.h>
  29 #include <rte_eal_memconfig.h>
  30 #include <rte_errno.h>
  31 #include <rte_per_lcore.h>
  32 #include <rte_lcore.h>
  33 #include <rte_service_component.h>
  34 #include <rte_log.h>
  35 #include <rte_random.h>
  36 #include <rte_cycles.h>
  37 #include <rte_string_fns.h>
  38 #include <rte_cpuflags.h>
  39 #include <rte_interrupts.h>
  40 #include <rte_bus.h>
  41 #include <rte_dev.h>
  42 #include <rte_devargs.h>
  43 #include <rte_version.h>
  44 #include <rte_vfio.h>
  45 #include <rte_option.h>
  46 #include <rte_atomic.h>
  47 #include <malloc_heap.h>
  48
  49 #include "eal_private.h"
  50 #include "eal_thread.h"
  51 #include "eal_internal_cfg.h"
  52 #include "eal_filesystem.h"
  53 #include "eal_hugepages.h"
  54 #include "eal_options.h"
  55
  56 #define MEMSIZE_IF_NO_HUGE_PAGE (64ULL * 1024ULL * 1024ULL)
  57
  58 /* Allow the application to print its usage message too if set */
  59 static rte_usage_hook_t rte_application_usage_hook = NULL;
  60 /* early configuration structure, when memory config is not mmapped */
  61 static struct rte_mem_config early_mem_config;
  62
  63 /* define fd variable here, because file needs to be kept open for the
  64  * duration of the program, as we hold a write lock on it in the primary proc */
  65 static int mem_cfg_fd = -1;
  66
  67 static struct flock wr_lock = {
  68                 .l_type = F_WRLCK,
  69                 .l_whence = SEEK_SET,
  70                 .l_start = offsetof(struct rte_mem_config, memsegs),
  71                 .l_len = sizeof(early_mem_config.memsegs),
  72 };
  73
  74 /* Address of global and public configuration */
  75 static struct rte_config rte_config = {
  76                 .mem_config = &early_mem_config,
  77 };
  78
  79 /* internal configuration (per-core) */
  80 struct lcore_config lcore_config[RTE_MAX_LCORE];
  81
  82 /* internal configuration */
  83 struct internal_config internal_config;
  84
  85 /* used by rte_rdtsc() */
  86 int rte_cycles_vmware_tsc_map;
  87
  88 /* platform-specific runtime dir */
  89 static char runtime_dir[PATH_MAX];
  90
  91 static const char *default_runtime_dir = "/var/run";
  92
  93 int
  94 eal_create_runtime_dir(void)
  95 {
  96         const char *directory = default_runtime_dir;
  97         const char *xdg_runtime_dir = getenv("XDG_RUNTIME_DIR");
  98         const char *fallback = "/tmp";
  99         char tmp[PATH_MAX];
 100         int ret;
 101
 102         if (getuid() != 0) {
 103                 /* try XDG path first, fall back to /tmp */
 104                 if (xdg_runtime_dir != NULL)
 105                         directory = xdg_runtime_dir;
 106                 else
 107                         directory = fallback;
 108         }
 109         /* create DPDK subdirectory under runtime dir */
 110         ret = snprintf(tmp, sizeof(tmp), "%s/dpdk", directory);
 111         if (ret < 0 || ret == sizeof(tmp)) {
 112                 RTE_LOG(ERR, EAL, "Error creating DPDK runtime path name\n");
 113                 return -1;
 114         }
 115
 116         /* create prefix-specific subdirectory under DPDK runtime dir */
 117         ret = snprintf(runtime_dir, sizeof(runtime_dir), "%s/%s",
 118                         tmp, eal_get_hugefile_prefix());
 119         if (ret < 0 || ret == sizeof(runtime_dir)) {
 120                 RTE_LOG(ERR, EAL, "Error creating prefix-specific runtime path name\n");
 121                 return -1;
 122         }
 123
 124         /* create the path if it doesn't exist. no "mkdir -p" here, so do it
 125          * step by step.
 126          */
 127         ret = mkdir(tmp, 0700);
 128         if (ret < 0 && errno != EEXIST) {
 129                 RTE_LOG(ERR, EAL, "Error creating '%s': %s\n",
 130                         tmp, strerror(errno));
 131                 return -1;
 132         }
 133
 134         ret = mkdir(runtime_dir, 0700);
 135         if (ret < 0 && errno != EEXIST) {
 136                 RTE_LOG(ERR, EAL, "Error creating '%s': %s\n",
 137                         runtime_dir, strerror(errno));
 138                 return -1;
 139         }
 140
 141         return 0;
 142 }
 143
 144 int
 145 eal_clean_runtime_dir(void)
 146 {
 147         /* FreeBSD doesn't need this implemented for now, because, unlike Linux,
 148          * FreeBSD doesn't create per-process files, so no need to clean up.
 149          */
 150         return 0;
 151 }
 152
 153
 154 const char *
 155 rte_eal_get_runtime_dir(void)
 156 {
 157         return runtime_dir;
 158 }
 159
 160 /* Return user provided mbuf pool ops name */
 161 const char *
 162 rte_eal_mbuf_user_pool_ops(void)
 163 {
 164         return internal_config.user_mbuf_pool_ops_name;
 165 }
 166
 167 /* Return a pointer to the configuration structure */
 168 struct rte_config *
 169 rte_eal_get_configuration(void)
 170 {
 171         return &rte_config;
 172 }
 173
 174 enum rte_iova_mode
 175 rte_eal_iova_mode(void)
 176 {
 177         return rte_eal_get_configuration()->iova_mode;
 178 }
 179
 180 /* parse a sysfs (or other) file containing one integer value */
 181 int
 182 eal_parse_sysfs_value(const char *filename, unsigned long *val)
 183 {
 184         FILE *f;
 185         char buf[BUFSIZ];
 186         char *end = NULL;
 187
 188         if ((f = fopen(filename, "r")) == NULL) {
 189                 RTE_LOG(ERR, EAL, "%s(): cannot open sysfs value %s\n",
 190                         __func__, filename);
 191                 return -1;
 192         }
 193
 194         if (fgets(buf, sizeof(buf), f) == NULL) {
 195                 RTE_LOG(ERR, EAL, "%s(): cannot read sysfs value %s\n",
 196                         __func__, filename);
 197                 fclose(f);
 198                 return -1;
 199         }
 200         *val = strtoul(buf, &end, 0);
 201         if ((buf[0] == '\0') || (end == NULL) || (*end != '\n')) {
 202                 RTE_LOG(ERR, EAL, "%s(): cannot parse sysfs value %s\n",
 203                                 __func__, filename);
 204                 fclose(f);
 205                 return -1;
 206         }
 207         fclose(f);
 208         return 0;
 209 }
 210
 211
 212 /* create memory configuration in shared/mmap memory. Take out
 213  * a write lock on the memsegs, so we can auto-detect primary/secondary.
 214  * This means we never close the file while running (auto-close on exit).
 215  * We also don't lock the whole file, so that in future we can use read-locks
 216  * on other parts, e.g. memzones, to detect if there are running secondary
 217  * processes. */
 218 static void
 219 rte_eal_config_create(void)
 220 {
 221         void *rte_mem_cfg_addr;
 222         int retval;
 223
 224         const char *pathname = eal_runtime_config_path();
 225
 226         if (internal_config.no_shconf)
 227                 return;
 228
 229         if (mem_cfg_fd < 0){
 230                 mem_cfg_fd = open(pathname, O_RDWR | O_CREAT, 0600);
 231                 if (mem_cfg_fd < 0)
 232                         rte_panic("Cannot open '%s' for rte_mem_config\n", pathname);
 233         }
 234
 235         retval = ftruncate(mem_cfg_fd, sizeof(*rte_config.mem_config));
 236         if (retval < 0){
 237                 close(mem_cfg_fd);
 238                 rte_panic("Cannot resize '%s' for rte_mem_config\n", pathname);
 239         }
 240
 241         retval = fcntl(mem_cfg_fd, F_SETLK, &wr_lock);
 242         if (retval < 0){
 243                 close(mem_cfg_fd);
 244                 rte_exit(EXIT_FAILURE, "Cannot create lock on '%s'. Is another primary "
 245                                 "process running?\n", pathname);
 246         }
 247
 248         rte_mem_cfg_addr = mmap(NULL, sizeof(*rte_config.mem_config),
 249                                 PROT_READ | PROT_WRITE, MAP_SHARED, mem_cfg_fd, 0);
 250
 251         if (rte_mem_cfg_addr == MAP_FAILED){
 252                 rte_panic("Cannot mmap memory for rte_config\n");
 253         }
 254         memcpy(rte_mem_cfg_addr, &early_mem_config, sizeof(early_mem_config));
 255         rte_config.mem_config = rte_mem_cfg_addr;
 256 }
 257
 258 /* attach to an existing shared memory config */
 259 static void
 260 rte_eal_config_attach(void)
 261 {
 262         void *rte_mem_cfg_addr;
 263         const char *pathname = eal_runtime_config_path();
 264
 265         if (internal_config.no_shconf)
 266                 return;
 267
 268         if (mem_cfg_fd < 0){
 269                 mem_cfg_fd = open(pathname, O_RDWR);
 270                 if (mem_cfg_fd < 0)
 271                         rte_panic("Cannot open '%s' for rte_mem_config\n", pathname);
 272         }
 273
 274         rte_mem_cfg_addr = mmap(NULL, sizeof(*rte_config.mem_config),
 275                                 PROT_READ | PROT_WRITE, MAP_SHARED, mem_cfg_fd, 0);
 276         close(mem_cfg_fd);
 277         if (rte_mem_cfg_addr == MAP_FAILED)
 278                 rte_panic("Cannot mmap memory for rte_config\n");
 279
 280         rte_config.mem_config = rte_mem_cfg_addr;
 281 }
 282
 283 /* Detect if we are a primary or a secondary process */
 284 enum rte_proc_type_t
 285 eal_proc_type_detect(void)
 286 {
 287         enum rte_proc_type_t ptype = RTE_PROC_PRIMARY;
 288         const char *pathname = eal_runtime_config_path();
 289
 290         /* if there no shared config, there can be no secondary processes */
 291         if (!internal_config.no_shconf) {
 292                 /* if we can open the file but not get a write-lock we are a
 293                  * secondary process. NOTE: if we get a file handle back, we
 294                  * keep that open and don't close it to prevent a race condition
 295                  * between multiple opens.
 296                  */
 297                 if (((mem_cfg_fd = open(pathname, O_RDWR)) >= 0) &&
 298                                 (fcntl(mem_cfg_fd, F_SETLK, &wr_lock) < 0))
 299                         ptype = RTE_PROC_SECONDARY;
 300         }
 301
 302         RTE_LOG(INFO, EAL, "Auto-detected process type: %s\n",
 303                         ptype == RTE_PROC_PRIMARY ? "PRIMARY" : "SECONDARY");
 304
 305         return ptype;
 306 }
 307
 308 /* Sets up rte_config structure with the pointer to shared memory config.*/
 309 static void
 310 rte_config_init(void)
 311 {
 312         rte_config.process_type = internal_config.process_type;
 313
 314         switch (rte_config.process_type){
 315         case RTE_PROC_PRIMARY:
 316                 rte_eal_config_create();
 317                 break;
 318         case RTE_PROC_SECONDARY:
 319                 rte_eal_config_attach();
 320                 rte_eal_mcfg_wait_complete(rte_config.mem_config);
 321                 break;
 322         case RTE_PROC_AUTO:
 323         case RTE_PROC_INVALID:
 324                 rte_panic("Invalid process type\n");
 325         }
 326 }
 327
 328 /* display usage */
 329 static void
 330 eal_usage(const char *prgname)
 331 {
 332         printf("\nUsage: %s ", prgname);
 333         eal_common_usage();
 334         /* Allow the application to print its usage message too if hook is set */
 335         if ( rte_application_usage_hook ) {
 336                 printf("===== Application Usage =====\n\n");
 337                 rte_application_usage_hook(prgname);
 338         }
 339 }
 340
 341 /* Set a per-application usage message */
 342 rte_usage_hook_t
 343 rte_set_application_usage_hook( rte_usage_hook_t usage_func )
 344 {
 345         rte_usage_hook_t        old_func;
 346
 347         /* Will be NULL on the first call to denote the last usage routine. */
 348         old_func                                        = rte_application_usage_hook;
 349         rte_application_usage_hook      = usage_func;
 350
 351         return old_func;
 352 }
 353
 354 static inline size_t
 355 eal_get_hugepage_mem_size(void)
 356 {
 357         uint64_t size = 0;
 358         unsigned i, j;
 359
 360         for (i = 0; i < internal_config.num_hugepage_sizes; i++) {
 361                 struct hugepage_info *hpi = &internal_config.hugepage_info[i];
 362                 if (strnlen(hpi->hugedir, sizeof(hpi->hugedir)) != 0) {
 363                         for (j = 0; j < RTE_MAX_NUMA_NODES; j++) {
 364                                 size += hpi->hugepage_sz * hpi->num_pages[j];
 365                         }
 366                 }
 367         }
 368
 369         return (size < SIZE_MAX) ? (size_t)(size) : SIZE_MAX;
 370 }
 371
 372 /* Parse the arguments for --log-level only */
 373 static void
 374 eal_log_level_parse(int argc, char **argv)
 375 {
 376         int opt;
 377         char **argvopt;
 378         int option_index;
 379         const int old_optind = optind;
 380         const int old_optopt = optopt;
 381         const int old_optreset = optreset;
 382         char * const old_optarg = optarg;
 383
 384         argvopt = argv;
 385         optind = 1;
 386         optreset = 1;
 387
 388         while ((opt = getopt_long(argc, argvopt, eal_short_options,
 389                                   eal_long_options, &option_index)) != EOF) {
 390
 391                 int ret;
 392
 393                 /* getopt is not happy, stop right now */
 394                 if (opt == '?')
 395                         break;
 396
 397                 ret = (opt == OPT_LOG_LEVEL_NUM) ?
 398                         eal_parse_common_option(opt, optarg, &internal_config) : 0;
 399
 400                 /* common parser is not happy */
 401                 if (ret < 0)
 402                         break;
 403         }
 404
 405         /* restore getopt lib */
 406         optind = old_optind;
 407         optopt = old_optopt;
 408         optreset = old_optreset;
 409         optarg = old_optarg;
 410 }
 411
 412 /* Parse the argument given in the command line of the application */
 413 static int
 414 eal_parse_args(int argc, char **argv)
 415 {
 416         int opt, ret;
 417         char **argvopt;
 418         int option_index;
 419         char *prgname = argv[0];
 420         const int old_optind = optind;
 421         const int old_optopt = optopt;
 422         const int old_optreset = optreset;
 423         char * const old_optarg = optarg;
 424
 425         argvopt = argv;
 426         optind = 1;
 427         optreset = 1;
 428         opterr = 0;
 429
 430         while ((opt = getopt_long(argc, argvopt, eal_short_options,
 431                                   eal_long_options, &option_index)) != EOF) {
 432
 433                 /*
 434                  * getopt didn't recognise the option, lets parse the
 435                  * registered options to see if the flag is valid
 436                  */
 437                 if (opt == '?') {
 438                         ret = rte_option_parse(argv[optind-1]);
 439                         if (ret == 0)
 440                                 continue;
 441
 442                         eal_usage(prgname);
 443                         ret = -1;
 444                         goto out;
 445                 }
 446
 447                 ret = eal_parse_common_option(opt, optarg, &internal_config);
 448                 /* common parser is not happy */
 449                 if (ret < 0) {
 450                         eal_usage(prgname);
 451                         ret = -1;
 452                         goto out;
 453                 }
 454                 /* common parser handled this option */
 455                 if (ret == 0)
 456                         continue;
 457
 458                 switch (opt) {
 459                 case OPT_MBUF_POOL_OPS_NAME_NUM:
 460                 {
 461                         char *ops_name = strdup(optarg);
 462                         if (ops_name == NULL)
 463                                 RTE_LOG(ERR, EAL, "Could not store mbuf pool ops name\n");
 464                         else {
 465                                 /* free old ops name */
 466                                 if (internal_config.user_mbuf_pool_ops_name !=
 467                                                 NULL)
 468                                         free(internal_config.user_mbuf_pool_ops_name);
 469
 470                                 internal_config.user_mbuf_pool_ops_name =
 471                                                 ops_name;
 472                         }
 473                         break;
 474                 }
 475                 case 'h':
 476                         eal_usage(prgname);
 477                         exit(EXIT_SUCCESS);
 478                 default:
 479                         if (opt < OPT_LONG_MIN_NUM && isprint(opt)) {
 480                                 RTE_LOG(ERR, EAL, "Option %c is not supported "
 481                                         "on FreeBSD\n", opt);
 482                         } else if (opt >= OPT_LONG_MIN_NUM &&
 483                                    opt < OPT_LONG_MAX_NUM) {
 484                                 RTE_LOG(ERR, EAL, "Option %s is not supported "
 485                                         "on FreeBSD\n",
 486                                         eal_long_options[option_index].name);
 487                         } else {
 488                                 RTE_LOG(ERR, EAL, "Option %d is not supported "
 489                                         "on FreeBSD\n", opt);
 490                         }
 491                         eal_usage(prgname);
 492                         ret = -1;
 493                         goto out;
 494                 }
 495         }
 496
 497         /* create runtime data directory */
 498         if (internal_config.no_shconf == 0 &&
 499                         eal_create_runtime_dir() < 0) {
 500                 RTE_LOG(ERR, EAL, "Cannot create runtime directory\n");
 501                 ret = -1;
 502                 goto out;
 503         }
 504
 505         if (eal_adjust_config(&internal_config) != 0) {
 506                 ret = -1;
 507                 goto out;
 508         }
 509
 510         /* sanity checks */
 511         if (eal_check_common_options(&internal_config) != 0) {
 512                 eal_usage(prgname);
 513                 ret = -1;
 514                 goto out;
 515         }
 516
 517         if (optind >= 0)
 518                 argv[optind-1] = prgname;
 519         ret = optind-1;
 520
 521 out:
 522         /* restore getopt lib */
 523         optind = old_optind;
 524         optopt = old_optopt;
 525         optreset = old_optreset;
 526         optarg = old_optarg;
 527
 528         return ret;
 529 }
 530
 531 static int
 532 check_socket(const struct rte_memseg_list *msl, void *arg)
 533 {
 534         int *socket_id = arg;
 535
 536         if (msl->external)
 537                 return 0;
 538
 539         if (msl->socket_id == *socket_id && msl->memseg_arr.count != 0)
 540                 return 1;
 541
 542         return 0;
 543 }
 544
 545 static void
 546 eal_check_mem_on_local_socket(void)
 547 {
 548         int socket_id;
 549
 550         socket_id = rte_lcore_to_socket_id(rte_config.master_lcore);
 551
 552         if (rte_memseg_list_walk(check_socket, &socket_id) == 0)
 553                 RTE_LOG(WARNING, EAL, "WARNING: Master core has no memory on local socket!\n");
 554 }
 555
 556
 557 static int
 558 sync_func(__attribute__((unused)) void *arg)
 559 {
 560         return 0;
 561 }
 562
 563 inline static void
 564 rte_eal_mcfg_complete(void)
 565 {
 566         /* ALL shared mem_config related INIT DONE */
 567         if (rte_config.process_type == RTE_PROC_PRIMARY)
 568                 rte_config.mem_config->magic = RTE_MAGIC;
 569 }
 570
 571 /* return non-zero if hugepages are enabled. */
 572 int rte_eal_has_hugepages(void)
 573 {
 574         return !internal_config.no_hugetlbfs;
 575 }
 576
 577 /* Abstraction for port I/0 privilege */
 578 int
 579 rte_eal_iopl_init(void)
 580 {
 581         static int fd = -1;
 582
 583         if (fd < 0)
 584                 fd = open("/dev/io", O_RDWR);
 585
 586         if (fd < 0)
 587                 return -1;
 588         /* keep fd open for iopl */
 589         return 0;
 590 }
 591
 592 static void rte_eal_init_alert(const char *msg)
 593 {
 594         fprintf(stderr, "EAL: FATAL: %s\n", msg);
 595         RTE_LOG(ERR, EAL, "%s\n", msg);
 596 }
 597
 598 /* Launch threads, called at application init(). */
 599 int
 600 rte_eal_init(int argc, char **argv)
 601 {
 602         int i, fctret, ret;
 603         pthread_t thread_id;
 604         static rte_atomic32_t run_once = RTE_ATOMIC32_INIT(0);
 605         char cpuset[RTE_CPU_AFFINITY_STR_LEN];
 606         char thread_name[RTE_MAX_THREAD_NAME_LEN];
 607
 608         /* checks if the machine is adequate */
 609         if (!rte_cpu_is_supported()) {
 610                 rte_eal_init_alert("unsupported cpu type.");
 611                 rte_errno = ENOTSUP;
 612                 return -1;
 613         }
 614
 615         if (!rte_atomic32_test_and_set(&run_once)) {
 616                 rte_eal_init_alert("already called initialization.");
 617                 rte_errno = EALREADY;
 618                 return -1;
 619         }
 620
 621         thread_id = pthread_self();
 622
 623         eal_reset_internal_config(&internal_config);
 624
 625         /* set log level as early as possible */
 626         eal_log_level_parse(argc, argv);
 627
 628         if (rte_eal_cpu_init() < 0) {
 629                 rte_eal_init_alert("Cannot detect lcores.");
 630                 rte_errno = ENOTSUP;
 631                 return -1;
 632         }
 633
 634         fctret = eal_parse_args(argc, argv);
 635         if (fctret < 0) {
 636                 rte_eal_init_alert("Invalid 'command line' arguments.");
 637                 rte_errno = EINVAL;
 638                 rte_atomic32_clear(&run_once);
 639                 return -1;
 640         }
 641
 642         /* FreeBSD always uses legacy memory model */
 643         internal_config.legacy_mem = true;
 644
 645         if (eal_plugins_init() < 0) {
 646                 rte_eal_init_alert("Cannot init plugins");
 647                 rte_errno = EINVAL;
 648                 rte_atomic32_clear(&run_once);
 649                 return -1;
 650         }
 651
 652         if (eal_option_device_parse()) {
 653                 rte_errno = ENODEV;
 654                 rte_atomic32_clear(&run_once);
 655                 return -1;
 656         }
 657
 658         rte_config_init();
 659
 660         if (rte_eal_intr_init() < 0) {
 661                 rte_eal_init_alert("Cannot init interrupt-handling thread");
 662                 return -1;
 663         }
 664
 665         if (rte_eal_alarm_init() < 0) {
 666                 rte_eal_init_alert("Cannot init interrupt-handling thread");
 667                 /* rte_eal_alarm_init sets rte_errno on failure. */
 668                 return -1;
 669         }
 670
 671         /* Put mp channel init before bus scan so that we can init the vdev
 672          * bus through mp channel in the secondary process before the bus scan.
 673          */
 674         if (rte_mp_channel_init() < 0) {
 675                 rte_eal_init_alert("failed to init mp channel");
 676                 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 677                         rte_errno = EFAULT;
 678                         return -1;
 679                 }
 680         }
 681
 682         if (rte_bus_scan()) {
 683                 rte_eal_init_alert("Cannot scan the buses for devices");
 684                 rte_errno = ENODEV;
 685                 rte_atomic32_clear(&run_once);
 686                 return -1;
 687         }
 688
 689         /* if no EAL option "--iova-mode=<pa|va>", use bus IOVA scheme */
 690         if (internal_config.iova_mode == RTE_IOVA_DC) {
 691                 /* autodetect the IOVA mapping mode (default is RTE_IOVA_PA) */
 692                 rte_eal_get_configuration()->iova_mode =
 693                         rte_bus_get_iommu_class();
 694         } else {
 695                 rte_eal_get_configuration()->iova_mode =
 696                         internal_config.iova_mode;
 697         }
 698
 699         if (internal_config.no_hugetlbfs == 0) {
 700                 /* rte_config isn't initialized yet */
 701                 ret = internal_config.process_type == RTE_PROC_PRIMARY ?
 702                         eal_hugepage_info_init() :
 703                         eal_hugepage_info_read();
 704                 if (ret < 0) {
 705                         rte_eal_init_alert("Cannot get hugepage information.");
 706                         rte_errno = EACCES;
 707                         rte_atomic32_clear(&run_once);
 708                         return -1;
 709                 }
 710         }
 711
 712         if (internal_config.memory == 0 && internal_config.force_sockets == 0) {
 713                 if (internal_config.no_hugetlbfs)
 714                         internal_config.memory = MEMSIZE_IF_NO_HUGE_PAGE;
 715                 else
 716                         internal_config.memory = eal_get_hugepage_mem_size();
 717         }
 718
 719         if (internal_config.vmware_tsc_map == 1) {
 720 #ifdef RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT
 721                 rte_cycles_vmware_tsc_map = 1;
 722                 RTE_LOG (DEBUG, EAL, "Using VMWARE TSC MAP, "
 723                                 "you must have monitor_control.pseudo_perfctr = TRUE\n");
 724 #else
 725                 RTE_LOG (WARNING, EAL, "Ignoring --vmware-tsc-map because "
 726                                 "RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT is not set\n");
 727 #endif
 728         }
 729
 730         rte_srand(rte_rdtsc());
 731
 732         /* in secondary processes, memory init may allocate additional fbarrays
 733          * not present in primary processes, so to avoid any potential issues,
 734          * initialize memzones first.
 735          */
 736         if (rte_eal_memzone_init() < 0) {
 737                 rte_eal_init_alert("Cannot init memzone");
 738                 rte_errno = ENODEV;
 739                 return -1;
 740         }
 741
 742         if (rte_eal_memory_init() < 0) {
 743                 rte_eal_init_alert("Cannot init memory");
 744                 rte_errno = ENOMEM;
 745                 return -1;
 746         }
 747
 748         if (rte_eal_malloc_heap_init() < 0) {
 749                 rte_eal_init_alert("Cannot init malloc heap");
 750                 rte_errno = ENODEV;
 751                 return -1;
 752         }
 753
 754         if (rte_eal_tailqs_init() < 0) {
 755                 rte_eal_init_alert("Cannot init tail queues for objects");
 756                 rte_errno = EFAULT;
 757                 return -1;
 758         }
 759
 760         if (rte_eal_timer_init() < 0) {
 761                 rte_eal_init_alert("Cannot init HPET or TSC timers");
 762                 rte_errno = ENOTSUP;
 763                 return -1;
 764         }
 765
 766         eal_check_mem_on_local_socket();
 767
 768         eal_thread_init_master(rte_config.master_lcore);
 769
 770         ret = eal_thread_dump_affinity(cpuset, sizeof(cpuset));
 771
 772         RTE_LOG(DEBUG, EAL, "Master lcore %u is ready (tid=%p;cpuset=[%s%s])\n",
 773                 rte_config.master_lcore, thread_id, cpuset,
 774                 ret == 0 ? "" : "...");
 775
 776         RTE_LCORE_FOREACH_SLAVE(i) {
 777
 778                 /*
 779                  * create communication pipes between master thread
 780                  * and children
 781                  */
 782                 if (pipe(lcore_config[i].pipe_master2slave) < 0)
 783                         rte_panic("Cannot create pipe\n");
 784                 if (pipe(lcore_config[i].pipe_slave2master) < 0)
 785                         rte_panic("Cannot create pipe\n");
 786
 787                 lcore_config[i].state = WAIT;
 788
 789                 /* create a thread for each lcore */
 790                 ret = pthread_create(&lcore_config[i].thread_id, NULL,
 791                                      eal_thread_loop, NULL);
 792                 if (ret != 0)
 793                         rte_panic("Cannot create thread\n");
 794
 795                 /* Set thread_name for aid in debugging. */
 796                 snprintf(thread_name, sizeof(thread_name),
 797                                 "lcore-slave-%d", i);
 798                 rte_thread_setname(lcore_config[i].thread_id, thread_name);
 799         }
 800
 801         /*
 802          * Launch a dummy function on all slave lcores, so that master lcore
 803          * knows they are all ready when this function returns.
 804          */
 805         rte_eal_mp_remote_launch(sync_func, NULL, SKIP_MASTER);
 806         rte_eal_mp_wait_lcore();
 807
 808         /* initialize services so vdevs register service during bus_probe. */
 809         ret = rte_service_init();
 810         if (ret) {
 811                 rte_eal_init_alert("rte_service_init() failed");
 812                 rte_errno = ENOEXEC;
 813                 return -1;
 814         }
 815
 816         /* Probe all the buses and devices/drivers on them */
 817         if (rte_bus_probe()) {
 818                 rte_eal_init_alert("Cannot probe devices");
 819                 rte_errno = ENOTSUP;
 820                 return -1;
 821         }
 822
 823         /* initialize default service/lcore mappings and start running. Ignore
 824          * -ENOTSUP, as it indicates no service coremask passed to EAL.
 825          */
 826         ret = rte_service_start_with_defaults();
 827         if (ret < 0 && ret != -ENOTSUP) {
 828                 rte_errno = ENOEXEC;
 829                 return -1;
 830         }
 831
 832         /*
 833          * Clean up unused files in runtime directory. We do this at the end of
 834          * init and not at the beginning because we want to clean stuff up
 835          * whether we are primary or secondary process, but we cannot remove
 836          * primary process' files because secondary should be able to run even
 837          * if primary process is dead.
 838          *
 839          * In no_shconf mode, no runtime directory is created in the first
 840          * place, so no cleanup needed.
 841          */
 842         if (!internal_config.no_shconf && eal_clean_runtime_dir() < 0) {
 843                 rte_eal_init_alert("Cannot clear runtime directory\n");
 844                 return -1;
 845         }
 846
 847         rte_eal_mcfg_complete();
 848
 849         /* Call each registered callback, if enabled */
 850         rte_option_init();
 851
 852         return fctret;
 853 }
 854
 855 int __rte_experimental
 856 rte_eal_cleanup(void)
 857 {
 858         rte_service_finalize();
 859         rte_mp_channel_cleanup();
 860         eal_cleanup_config(&internal_config);
 861         return 0;
 862 }
 863
 864 /* get core role */
 865 enum rte_lcore_role_t
 866 rte_eal_lcore_role(unsigned lcore_id)
 867 {
 868         return rte_config.lcore_role[lcore_id];
 869 }
 870
 871 enum rte_proc_type_t
 872 rte_eal_process_type(void)
 873 {
 874         return rte_config.process_type;
 875 }
 876
 877 int rte_eal_has_pci(void)
 878 {
 879         return !internal_config.no_pci;
 880 }
 881
 882 int rte_eal_create_uio_dev(void)
 883 {
 884         return internal_config.create_uio_dev;
 885 }
 886
 887 enum rte_intr_mode
 888 rte_eal_vfio_intr_mode(void)
 889 {
 890         return RTE_INTR_MODE_NONE;
 891 }
 892
 893 int rte_vfio_setup_device(__rte_unused const char *sysfs_base,
 894                       __rte_unused const char *dev_addr,
 895                       __rte_unused int *vfio_dev_fd,
 896                       __rte_unused struct vfio_device_info *device_info)
 897 {
 898         return -1;
 899 }
 900
 901 int rte_vfio_release_device(__rte_unused const char *sysfs_base,
 902                         __rte_unused const char *dev_addr,
 903                         __rte_unused int fd)
 904 {
 905         return -1;
 906 }
 907
 908 int rte_vfio_enable(__rte_unused const char *modname)
 909 {
 910         return -1;
 911 }
 912
 913 int rte_vfio_is_enabled(__rte_unused const char *modname)
 914 {
 915         return 0;
 916 }
 917
 918 int rte_vfio_noiommu_is_enabled(void)
 919 {
 920         return 0;
 921 }
 922
 923 int rte_vfio_clear_group(__rte_unused int vfio_group_fd)
 924 {
 925         return 0;
 926 }
 927
 928 int
 929 rte_vfio_dma_map(uint64_t __rte_unused vaddr, __rte_unused uint64_t iova,
 930                   __rte_unused uint64_t len)
 931 {
 932         return -1;
 933 }
 934
 935 int
 936 rte_vfio_dma_unmap(uint64_t __rte_unused vaddr, uint64_t __rte_unused iova,
 937                     __rte_unused uint64_t len)
 938 {
 939         return -1;
 940 }
 941
 942 int
 943 rte_vfio_get_group_num(__rte_unused const char *sysfs_base,
 944                        __rte_unused const char *dev_addr,
 945                        __rte_unused int *iommu_group_num)
 946 {
 947         return -1;
 948 }
 949
 950 int
 951 rte_vfio_get_container_fd(void)
 952 {
 953         return -1;
 954 }
 955
 956 int
 957 rte_vfio_get_group_fd(__rte_unused int iommu_group_num)
 958 {
 959         return -1;
 960 }
 961
 962 int
 963 rte_vfio_container_create(void)
 964 {
 965         return -1;
 966 }
 967
 968 int
 969 rte_vfio_container_destroy(__rte_unused int container_fd)
 970 {
 971         return -1;
 972 }
 973
 974 int
 975 rte_vfio_container_group_bind(__rte_unused int container_fd,
 976                 __rte_unused int iommu_group_num)
 977 {
 978         return -1;
 979 }
 980
 981 int
 982 rte_vfio_container_group_unbind(__rte_unused int container_fd,
 983                 __rte_unused int iommu_group_num)
 984 {
 985         return -1;
 986 }
 987
 988 int
 989 rte_vfio_container_dma_map(__rte_unused int container_fd,
 990                         __rte_unused uint64_t vaddr,
 991                         __rte_unused uint64_t iova,
 992                         __rte_unused uint64_t len)
 993 {
 994         return -1;
 995 }
 996
 997 int
 998 rte_vfio_container_dma_unmap(__rte_unused int container_fd,
 999                         __rte_unused uint64_t vaddr,
1000                         __rte_unused uint64_t iova,
1001                         __rte_unused uint64_t len)
1002 {
1003         return -1;
1004 }