lib/librte_eal/freebsd/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_errno.h>
  30 #include <rte_per_lcore.h>
  31 #include <rte_lcore.h>
  32 #include <rte_service_component.h>
  33 #include <rte_log.h>
  34 #include <rte_random.h>
  35 #include <rte_cycles.h>
  36 #include <rte_string_fns.h>
  37 #include <rte_cpuflags.h>
  38 #include <rte_interrupts.h>
  39 #include <rte_bus.h>
  40 #include <rte_dev.h>
  41 #include <rte_devargs.h>
  42 #include <rte_version.h>
  43 #include <rte_vfio.h>
  44 #include <rte_atomic.h>
  45 #include <malloc_heap.h>
  46 #include <rte_telemetry.h>
  47
  48 #include "eal_private.h"
  49 #include "eal_thread.h"
  50 #include "eal_internal_cfg.h"
  51 #include "eal_filesystem.h"
  52 #include "eal_hugepages.h"
  53 #include "eal_options.h"
  54 #include "eal_memcfg.h"
  55 #include "eal_trace.h"
  56
  57 #define MEMSIZE_IF_NO_HUGE_PAGE (64ULL * 1024ULL * 1024ULL)
  58
  59 /* define fd variable here, because file needs to be kept open for the
  60  * duration of the program, as we hold a write lock on it in the primary proc */
  61 static int mem_cfg_fd = -1;
  62
  63 static struct flock wr_lock = {
  64                 .l_type = F_WRLCK,
  65                 .l_whence = SEEK_SET,
  66                 .l_start = offsetof(struct rte_mem_config, memsegs),
  67                 .l_len = RTE_SIZEOF_FIELD(struct rte_mem_config, memsegs),
  68 };
  69
  70 /* internal configuration (per-core) */
  71 struct lcore_config lcore_config[RTE_MAX_LCORE];
  72
  73 /* used by rte_rdtsc() */
  74 int rte_cycles_vmware_tsc_map;
  75
  76 static const char *default_runtime_dir = "/var/run";
  77
  78 int
  79 eal_create_runtime_dir(void)
  80 {
  81         const char *directory = default_runtime_dir;
  82         const char *xdg_runtime_dir = getenv("XDG_RUNTIME_DIR");
  83         const char *fallback = "/tmp";
  84         char run_dir[PATH_MAX];
  85         char tmp[PATH_MAX];
  86         int ret;
  87
  88         if (getuid() != 0) {
  89                 /* try XDG path first, fall back to /tmp */
  90                 if (xdg_runtime_dir != NULL)
  91                         directory = xdg_runtime_dir;
  92                 else
  93                         directory = fallback;
  94         }
  95         /* create DPDK subdirectory under runtime dir */
  96         ret = snprintf(tmp, sizeof(tmp), "%s/dpdk", directory);
  97         if (ret < 0 || ret == sizeof(tmp)) {
  98                 RTE_LOG(ERR, EAL, "Error creating DPDK runtime path name\n");
  99                 return -1;
 100         }
 101
 102         /* create prefix-specific subdirectory under DPDK runtime dir */
 103         ret = snprintf(run_dir, sizeof(run_dir), "%s/%s",
 104                         tmp, eal_get_hugefile_prefix());
 105         if (ret < 0 || ret == sizeof(run_dir)) {
 106                 RTE_LOG(ERR, EAL, "Error creating prefix-specific runtime path name\n");
 107                 return -1;
 108         }
 109
 110         /* create the path if it doesn't exist. no "mkdir -p" here, so do it
 111          * step by step.
 112          */
 113         ret = mkdir(tmp, 0700);
 114         if (ret < 0 && errno != EEXIST) {
 115                 RTE_LOG(ERR, EAL, "Error creating '%s': %s\n",
 116                         tmp, strerror(errno));
 117                 return -1;
 118         }
 119
 120         ret = mkdir(run_dir, 0700);
 121         if (ret < 0 && errno != EEXIST) {
 122                 RTE_LOG(ERR, EAL, "Error creating '%s': %s\n",
 123                         run_dir, strerror(errno));
 124                 return -1;
 125         }
 126
 127         if (eal_set_runtime_dir(run_dir, sizeof(run_dir)))
 128                 return -1;
 129
 130         return 0;
 131 }
 132
 133 int
 134 eal_clean_runtime_dir(void)
 135 {
 136         /* FreeBSD doesn't need this implemented for now, because, unlike Linux,
 137          * FreeBSD doesn't create per-process files, so no need to clean up.
 138          */
 139         return 0;
 140 }
 141
 142 /* parse a sysfs (or other) file containing one integer value */
 143 int
 144 eal_parse_sysfs_value(const char *filename, unsigned long *val)
 145 {
 146         FILE *f;
 147         char buf[BUFSIZ];
 148         char *end = NULL;
 149
 150         if ((f = fopen(filename, "r")) == NULL) {
 151                 RTE_LOG(ERR, EAL, "%s(): cannot open sysfs value %s\n",
 152                         __func__, filename);
 153                 return -1;
 154         }
 155
 156         if (fgets(buf, sizeof(buf), f) == NULL) {
 157                 RTE_LOG(ERR, EAL, "%s(): cannot read sysfs value %s\n",
 158                         __func__, filename);
 159                 fclose(f);
 160                 return -1;
 161         }
 162         *val = strtoul(buf, &end, 0);
 163         if ((buf[0] == '\0') || (end == NULL) || (*end != '\n')) {
 164                 RTE_LOG(ERR, EAL, "%s(): cannot parse sysfs value %s\n",
 165                                 __func__, filename);
 166                 fclose(f);
 167                 return -1;
 168         }
 169         fclose(f);
 170         return 0;
 171 }
 172
 173
 174 /* create memory configuration in shared/mmap memory. Take out
 175  * a write lock on the memsegs, so we can auto-detect primary/secondary.
 176  * This means we never close the file while running (auto-close on exit).
 177  * We also don't lock the whole file, so that in future we can use read-locks
 178  * on other parts, e.g. memzones, to detect if there are running secondary
 179  * processes. */
 180 static int
 181 rte_eal_config_create(void)
 182 {
 183         struct rte_config *config = rte_eal_get_configuration();
 184         const struct internal_config *internal_conf =
 185                 eal_get_internal_configuration();
 186         size_t page_sz = sysconf(_SC_PAGE_SIZE);
 187         size_t cfg_len = sizeof(struct rte_mem_config);
 188         size_t cfg_len_aligned = RTE_ALIGN(cfg_len, page_sz);
 189         void *rte_mem_cfg_addr, *mapped_mem_cfg_addr;
 190         int retval;
 191
 192         const char *pathname = eal_runtime_config_path();
 193
 194         if (internal_conf->no_shconf)
 195                 return 0;
 196
 197         /* map the config before base address so that we don't waste a page */
 198         if (internal_conf->base_virtaddr != 0)
 199                 rte_mem_cfg_addr = (void *)
 200                         RTE_ALIGN_FLOOR(internal_conf->base_virtaddr -
 201                         sizeof(struct rte_mem_config), page_sz);
 202         else
 203                 rte_mem_cfg_addr = NULL;
 204
 205         if (mem_cfg_fd < 0){
 206                 mem_cfg_fd = open(pathname, O_RDWR | O_CREAT, 0600);
 207                 if (mem_cfg_fd < 0) {
 208                         RTE_LOG(ERR, EAL, "Cannot open '%s' for rte_mem_config\n",
 209                                 pathname);
 210                         return -1;
 211                 }
 212         }
 213
 214         retval = ftruncate(mem_cfg_fd, cfg_len);
 215         if (retval < 0){
 216                 close(mem_cfg_fd);
 217                 mem_cfg_fd = -1;
 218                 RTE_LOG(ERR, EAL, "Cannot resize '%s' for rte_mem_config\n",
 219                         pathname);
 220                 return -1;
 221         }
 222
 223         retval = fcntl(mem_cfg_fd, F_SETLK, &wr_lock);
 224         if (retval < 0){
 225                 close(mem_cfg_fd);
 226                 mem_cfg_fd = -1;
 227                 RTE_LOG(ERR, EAL, "Cannot create lock on '%s'. Is another primary "
 228                         "process running?\n", pathname);
 229                 return -1;
 230         }
 231
 232         /* reserve space for config */
 233         rte_mem_cfg_addr = eal_get_virtual_area(rte_mem_cfg_addr,
 234                         &cfg_len_aligned, page_sz, 0, 0);
 235         if (rte_mem_cfg_addr == NULL) {
 236                 RTE_LOG(ERR, EAL, "Cannot mmap memory for rte_config\n");
 237                 close(mem_cfg_fd);
 238                 mem_cfg_fd = -1;
 239                 return -1;
 240         }
 241
 242         /* remap the actual file into the space we've just reserved */
 243         mapped_mem_cfg_addr = mmap(rte_mem_cfg_addr,
 244                         cfg_len_aligned, PROT_READ | PROT_WRITE,
 245                         MAP_SHARED | MAP_FIXED, mem_cfg_fd, 0);
 246         if (mapped_mem_cfg_addr == MAP_FAILED) {
 247                 RTE_LOG(ERR, EAL, "Cannot remap memory for rte_config\n");
 248                 munmap(rte_mem_cfg_addr, cfg_len);
 249                 close(mem_cfg_fd);
 250                 mem_cfg_fd = -1;
 251                 return -1;
 252         }
 253
 254         memcpy(rte_mem_cfg_addr, config->mem_config, sizeof(struct rte_mem_config));
 255         config->mem_config = rte_mem_cfg_addr;
 256
 257         /* store address of the config in the config itself so that secondary
 258          * processes could later map the config into this exact location
 259          */
 260         config->mem_config->mem_cfg_addr = (uintptr_t) rte_mem_cfg_addr;
 261         return 0;
 262 }
 263
 264 /* attach to an existing shared memory config */
 265 static int
 266 rte_eal_config_attach(void)
 267 {
 268         void *rte_mem_cfg_addr;
 269         const char *pathname = eal_runtime_config_path();
 270         struct rte_config *config = rte_eal_get_configuration();
 271         const struct internal_config *internal_conf =
 272                 eal_get_internal_configuration();
 273
 274
 275         if (internal_conf->no_shconf)
 276                 return 0;
 277
 278         if (mem_cfg_fd < 0){
 279                 mem_cfg_fd = open(pathname, O_RDWR);
 280                 if (mem_cfg_fd < 0) {
 281                         RTE_LOG(ERR, EAL, "Cannot open '%s' for rte_mem_config\n",
 282                                 pathname);
 283                         return -1;
 284                 }
 285         }
 286
 287         rte_mem_cfg_addr = mmap(NULL, sizeof(*config->mem_config),
 288                                 PROT_READ, MAP_SHARED, mem_cfg_fd, 0);
 289         /* don't close the fd here, it will be closed on reattach */
 290         if (rte_mem_cfg_addr == MAP_FAILED) {
 291                 close(mem_cfg_fd);
 292                 mem_cfg_fd = -1;
 293                 RTE_LOG(ERR, EAL, "Cannot mmap memory for rte_config! error %i (%s)\n",
 294                         errno, strerror(errno));
 295                 return -1;
 296         }
 297
 298         config->mem_config = rte_mem_cfg_addr;
 299
 300         return 0;
 301 }
 302
 303 /* reattach the shared config at exact memory location primary process has it */
 304 static int
 305 rte_eal_config_reattach(void)
 306 {
 307         struct rte_mem_config *mem_config;
 308         void *rte_mem_cfg_addr;
 309         struct rte_config *config = rte_eal_get_configuration();
 310         const struct internal_config *internal_conf =
 311                 eal_get_internal_configuration();
 312
 313         if (internal_conf->no_shconf)
 314                 return 0;
 315
 316         /* save the address primary process has mapped shared config to */
 317         rte_mem_cfg_addr =
 318                         (void *)(uintptr_t)config->mem_config->mem_cfg_addr;
 319
 320         /* unmap original config */
 321         munmap(config->mem_config, sizeof(struct rte_mem_config));
 322
 323         /* remap the config at proper address */
 324         mem_config = (struct rte_mem_config *) mmap(rte_mem_cfg_addr,
 325                         sizeof(*mem_config), PROT_READ | PROT_WRITE, MAP_SHARED,
 326                         mem_cfg_fd, 0);
 327         close(mem_cfg_fd);
 328         mem_cfg_fd = -1;
 329
 330         if (mem_config == MAP_FAILED || mem_config != rte_mem_cfg_addr) {
 331                 if (mem_config != MAP_FAILED) {
 332                         /* errno is stale, don't use */
 333                         RTE_LOG(ERR, EAL, "Cannot mmap memory for rte_config at [%p], got [%p]"
 334                                           " - please use '--" OPT_BASE_VIRTADDR
 335                                           "' option\n",
 336                                 rte_mem_cfg_addr, mem_config);
 337                         munmap(mem_config, sizeof(struct rte_mem_config));
 338                         return -1;
 339                 }
 340                 RTE_LOG(ERR, EAL, "Cannot mmap memory for rte_config! error %i (%s)\n",
 341                         errno, strerror(errno));
 342                 return -1;
 343         }
 344
 345         config->mem_config = mem_config;
 346
 347         return 0;
 348 }
 349
 350 /* Detect if we are a primary or a secondary process */
 351 enum rte_proc_type_t
 352 eal_proc_type_detect(void)
 353 {
 354         enum rte_proc_type_t ptype = RTE_PROC_PRIMARY;
 355         const char *pathname = eal_runtime_config_path();
 356         const struct internal_config *internal_conf =
 357                 eal_get_internal_configuration();
 358
 359         /* if there no shared config, there can be no secondary processes */
 360         if (!internal_conf->no_shconf) {
 361                 /* if we can open the file but not get a write-lock we are a
 362                  * secondary process. NOTE: if we get a file handle back, we
 363                  * keep that open and don't close it to prevent a race condition
 364                  * between multiple opens.
 365                  */
 366                 if (((mem_cfg_fd = open(pathname, O_RDWR)) >= 0) &&
 367                                 (fcntl(mem_cfg_fd, F_SETLK, &wr_lock) < 0))
 368                         ptype = RTE_PROC_SECONDARY;
 369         }
 370
 371         RTE_LOG(INFO, EAL, "Auto-detected process type: %s\n",
 372                         ptype == RTE_PROC_PRIMARY ? "PRIMARY" : "SECONDARY");
 373
 374         return ptype;
 375 }
 376
 377 /* Sets up rte_config structure with the pointer to shared memory config.*/
 378 static int
 379 rte_config_init(void)
 380 {
 381         struct rte_config *config = rte_eal_get_configuration();
 382         const struct internal_config *internal_conf =
 383                 eal_get_internal_configuration();
 384
 385         config->process_type = internal_conf->process_type;
 386
 387         switch (config->process_type) {
 388         case RTE_PROC_PRIMARY:
 389                 if (rte_eal_config_create() < 0)
 390                         return -1;
 391                 eal_mcfg_update_from_internal();
 392                 break;
 393         case RTE_PROC_SECONDARY:
 394                 if (rte_eal_config_attach() < 0)
 395                         return -1;
 396                 eal_mcfg_wait_complete();
 397                 if (eal_mcfg_check_version() < 0) {
 398                         RTE_LOG(ERR, EAL, "Primary and secondary process DPDK version mismatch\n");
 399                         return -1;
 400                 }
 401                 if (rte_eal_config_reattach() < 0)
 402                         return -1;
 403                 eal_mcfg_update_internal();
 404                 break;
 405         case RTE_PROC_AUTO:
 406         case RTE_PROC_INVALID:
 407                 RTE_LOG(ERR, EAL, "Invalid process type %d\n",
 408                         config->process_type);
 409                 return -1;
 410         }
 411
 412         return 0;
 413 }
 414
 415 /* display usage */
 416 static void
 417 eal_usage(const char *prgname)
 418 {
 419         rte_usage_hook_t hook = eal_get_application_usage_hook();
 420
 421         printf("\nUsage: %s ", prgname);
 422         eal_common_usage();
 423         /* Allow the application to print its usage message too if hook is set */
 424         if (hook) {
 425                 printf("===== Application Usage =====\n\n");
 426                 (hook)(prgname);
 427         }
 428 }
 429
 430 static inline size_t
 431 eal_get_hugepage_mem_size(void)
 432 {
 433         uint64_t size = 0;
 434         unsigned i, j;
 435         struct internal_config *internal_conf =
 436                 eal_get_internal_configuration();
 437
 438         for (i = 0; i < internal_conf->num_hugepage_sizes; i++) {
 439                 struct hugepage_info *hpi = &internal_conf->hugepage_info[i];
 440                 if (strnlen(hpi->hugedir, sizeof(hpi->hugedir)) != 0) {
 441                         for (j = 0; j < RTE_MAX_NUMA_NODES; j++) {
 442                                 size += hpi->hugepage_sz * hpi->num_pages[j];
 443                         }
 444                 }
 445         }
 446
 447         return (size < SIZE_MAX) ? (size_t)(size) : SIZE_MAX;
 448 }
 449
 450 /* Parse the arguments for --log-level only */
 451 static void
 452 eal_log_level_parse(int argc, char **argv)
 453 {
 454         int opt;
 455         char **argvopt;
 456         int option_index;
 457         const int old_optind = optind;
 458         const int old_optopt = optopt;
 459         const int old_optreset = optreset;
 460         char * const old_optarg = optarg;
 461         struct internal_config *internal_conf =
 462                 eal_get_internal_configuration();
 463
 464         argvopt = argv;
 465         optind = 1;
 466         optreset = 1;
 467
 468         while ((opt = getopt_long(argc, argvopt, eal_short_options,
 469                                   eal_long_options, &option_index)) != EOF) {
 470
 471                 int ret;
 472
 473                 /* getopt is not happy, stop right now */
 474                 if (opt == '?')
 475                         break;
 476
 477                 ret = (opt == OPT_LOG_LEVEL_NUM) ?
 478                     eal_parse_common_option(opt, optarg, internal_conf) : 0;
 479
 480                 /* common parser is not happy */
 481                 if (ret < 0)
 482                         break;
 483         }
 484
 485         /* restore getopt lib */
 486         optind = old_optind;
 487         optopt = old_optopt;
 488         optreset = old_optreset;
 489         optarg = old_optarg;
 490 }
 491
 492 /* Parse the argument given in the command line of the application */
 493 static int
 494 eal_parse_args(int argc, char **argv)
 495 {
 496         int opt, ret;
 497         char **argvopt;
 498         int option_index;
 499         char *prgname = argv[0];
 500         const int old_optind = optind;
 501         const int old_optopt = optopt;
 502         const int old_optreset = optreset;
 503         char * const old_optarg = optarg;
 504         struct internal_config *internal_conf =
 505                 eal_get_internal_configuration();
 506
 507         argvopt = argv;
 508         optind = 1;
 509         optreset = 1;
 510
 511         while ((opt = getopt_long(argc, argvopt, eal_short_options,
 512                                   eal_long_options, &option_index)) != EOF) {
 513
 514                 /* getopt didn't recognise the option */
 515                 if (opt == '?') {
 516                         eal_usage(prgname);
 517                         ret = -1;
 518                         goto out;
 519                 }
 520
 521                 ret = eal_parse_common_option(opt, optarg, internal_conf);
 522                 /* common parser is not happy */
 523                 if (ret < 0) {
 524                         eal_usage(prgname);
 525                         ret = -1;
 526                         goto out;
 527                 }
 528                 /* common parser handled this option */
 529                 if (ret == 0)
 530                         continue;
 531
 532                 switch (opt) {
 533                 case OPT_MBUF_POOL_OPS_NAME_NUM:
 534                 {
 535                         char *ops_name = strdup(optarg);
 536                         if (ops_name == NULL)
 537                                 RTE_LOG(ERR, EAL, "Could not store mbuf pool ops name\n");
 538                         else {
 539                                 /* free old ops name */
 540                                 if (internal_conf->user_mbuf_pool_ops_name !=
 541                                                 NULL)
 542                                         free(internal_conf->user_mbuf_pool_ops_name);
 543
 544                                 internal_conf->user_mbuf_pool_ops_name =
 545                                                 ops_name;
 546                         }
 547                         break;
 548                 }
 549                 case 'h':
 550                         eal_usage(prgname);
 551                         exit(EXIT_SUCCESS);
 552                 default:
 553                         if (opt < OPT_LONG_MIN_NUM && isprint(opt)) {
 554                                 RTE_LOG(ERR, EAL, "Option %c is not supported "
 555                                         "on FreeBSD\n", opt);
 556                         } else if (opt >= OPT_LONG_MIN_NUM &&
 557                                    opt < OPT_LONG_MAX_NUM) {
 558                                 RTE_LOG(ERR, EAL, "Option %s is not supported "
 559                                         "on FreeBSD\n",
 560                                         eal_long_options[option_index].name);
 561                         } else {
 562                                 RTE_LOG(ERR, EAL, "Option %d is not supported "
 563                                         "on FreeBSD\n", opt);
 564                         }
 565                         eal_usage(prgname);
 566                         ret = -1;
 567                         goto out;
 568                 }
 569         }
 570
 571         /* create runtime data directory */
 572         if (internal_conf->no_shconf == 0 &&
 573                         eal_create_runtime_dir() < 0) {
 574                 RTE_LOG(ERR, EAL, "Cannot create runtime directory\n");
 575                 ret = -1;
 576                 goto out;
 577         }
 578
 579         if (eal_adjust_config(internal_conf) != 0) {
 580                 ret = -1;
 581                 goto out;
 582         }
 583
 584         /* sanity checks */
 585         if (eal_check_common_options(internal_conf) != 0) {
 586                 eal_usage(prgname);
 587                 ret = -1;
 588                 goto out;
 589         }
 590
 591         if (optind >= 0)
 592                 argv[optind-1] = prgname;
 593         ret = optind-1;
 594
 595 out:
 596         /* restore getopt lib */
 597         optind = old_optind;
 598         optopt = old_optopt;
 599         optreset = old_optreset;
 600         optarg = old_optarg;
 601
 602         return ret;
 603 }
 604
 605 static int
 606 check_socket(const struct rte_memseg_list *msl, void *arg)
 607 {
 608         int *socket_id = arg;
 609
 610         if (msl->external)
 611                 return 0;
 612
 613         if (msl->socket_id == *socket_id && msl->memseg_arr.count != 0)
 614                 return 1;
 615
 616         return 0;
 617 }
 618
 619 static void
 620 eal_check_mem_on_local_socket(void)
 621 {
 622         int socket_id;
 623         const struct rte_config *config = rte_eal_get_configuration();
 624
 625         socket_id = rte_lcore_to_socket_id(config->master_lcore);
 626
 627         if (rte_memseg_list_walk(check_socket, &socket_id) == 0)
 628                 RTE_LOG(WARNING, EAL, "WARNING: Master core has no memory on local socket!\n");
 629 }
 630
 631
 632 static int
 633 sync_func(__rte_unused void *arg)
 634 {
 635         return 0;
 636 }
 637 /* Abstraction for port I/0 privilege */
 638 int
 639 rte_eal_iopl_init(void)
 640 {
 641         static int fd = -1;
 642
 643         if (fd < 0)
 644                 fd = open("/dev/io", O_RDWR);
 645
 646         if (fd < 0)
 647                 return -1;
 648         /* keep fd open for iopl */
 649         return 0;
 650 }
 651
 652 static void rte_eal_init_alert(const char *msg)
 653 {
 654         fprintf(stderr, "EAL: FATAL: %s\n", msg);
 655         RTE_LOG(ERR, EAL, "%s\n", msg);
 656 }
 657
 658 /* Launch threads, called at application init(). */
 659 int
 660 rte_eal_init(int argc, char **argv)
 661 {
 662         int i, fctret, ret;
 663         pthread_t thread_id;
 664         static rte_atomic32_t run_once = RTE_ATOMIC32_INIT(0);
 665         char cpuset[RTE_CPU_AFFINITY_STR_LEN];
 666         char thread_name[RTE_MAX_THREAD_NAME_LEN];
 667         const struct rte_config *config = rte_eal_get_configuration();
 668         struct internal_config *internal_conf =
 669                 eal_get_internal_configuration();
 670
 671         /* checks if the machine is adequate */
 672         if (!rte_cpu_is_supported()) {
 673                 rte_eal_init_alert("unsupported cpu type.");
 674                 rte_errno = ENOTSUP;
 675                 return -1;
 676         }
 677
 678         if (!rte_atomic32_test_and_set(&run_once)) {
 679                 rte_eal_init_alert("already called initialization.");
 680                 rte_errno = EALREADY;
 681                 return -1;
 682         }
 683
 684         thread_id = pthread_self();
 685
 686         eal_reset_internal_config(internal_conf);
 687
 688         /* clone argv to report out later in telemetry */
 689         eal_save_args(argc, argv);
 690
 691         /* set log level as early as possible */
 692         eal_log_level_parse(argc, argv);
 693
 694         if (rte_eal_cpu_init() < 0) {
 695                 rte_eal_init_alert("Cannot detect lcores.");
 696                 rte_errno = ENOTSUP;
 697                 return -1;
 698         }
 699
 700         fctret = eal_parse_args(argc, argv);
 701         if (fctret < 0) {
 702                 rte_eal_init_alert("Invalid 'command line' arguments.");
 703                 rte_errno = EINVAL;
 704                 rte_atomic32_clear(&run_once);
 705                 return -1;
 706         }
 707
 708         /* FreeBSD always uses legacy memory model */
 709         internal_conf->legacy_mem = true;
 710
 711         if (eal_plugins_init() < 0) {
 712                 rte_eal_init_alert("Cannot init plugins");
 713                 rte_errno = EINVAL;
 714                 rte_atomic32_clear(&run_once);
 715                 return -1;
 716         }
 717
 718         if (eal_trace_init() < 0) {
 719                 rte_eal_init_alert("Cannot init trace");
 720                 rte_errno = EFAULT;
 721                 rte_atomic32_clear(&run_once);
 722                 return -1;
 723         }
 724
 725         if (eal_option_device_parse()) {
 726                 rte_errno = ENODEV;
 727                 rte_atomic32_clear(&run_once);
 728                 return -1;
 729         }
 730
 731         if (rte_config_init() < 0) {
 732                 rte_eal_init_alert("Cannot init config");
 733                 return -1;
 734         }
 735
 736         if (rte_eal_intr_init() < 0) {
 737                 rte_eal_init_alert("Cannot init interrupt-handling thread");
 738                 return -1;
 739         }
 740
 741         if (rte_eal_alarm_init() < 0) {
 742                 rte_eal_init_alert("Cannot init alarm");
 743                 /* rte_eal_alarm_init sets rte_errno on failure. */
 744                 return -1;
 745         }
 746
 747         /* Put mp channel init before bus scan so that we can init the vdev
 748          * bus through mp channel in the secondary process before the bus scan.
 749          */
 750         if (rte_mp_channel_init() < 0 && rte_errno != ENOTSUP) {
 751                 rte_eal_init_alert("failed to init mp channel");
 752                 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 753                         rte_errno = EFAULT;
 754                         return -1;
 755                 }
 756         }
 757
 758         if (rte_bus_scan()) {
 759                 rte_eal_init_alert("Cannot scan the buses for devices");
 760                 rte_errno = ENODEV;
 761                 rte_atomic32_clear(&run_once);
 762                 return -1;
 763         }
 764
 765         /* if no EAL option "--iova-mode=<pa|va>", use bus IOVA scheme */
 766         if (internal_conf->iova_mode == RTE_IOVA_DC) {
 767                 /* autodetect the IOVA mapping mode (default is RTE_IOVA_PA) */
 768                 enum rte_iova_mode iova_mode = rte_bus_get_iommu_class();
 769
 770                 if (iova_mode == RTE_IOVA_DC)
 771                         iova_mode = RTE_IOVA_PA;
 772                 rte_eal_get_configuration()->iova_mode = iova_mode;
 773         } else {
 774                 rte_eal_get_configuration()->iova_mode =
 775                         internal_conf->iova_mode;
 776         }
 777
 778         RTE_LOG(INFO, EAL, "Selected IOVA mode '%s'\n",
 779                 rte_eal_iova_mode() == RTE_IOVA_PA ? "PA" : "VA");
 780
 781         if (internal_conf->no_hugetlbfs == 0) {
 782                 /* rte_config isn't initialized yet */
 783                 ret = internal_conf->process_type == RTE_PROC_PRIMARY ?
 784                         eal_hugepage_info_init() :
 785                         eal_hugepage_info_read();
 786                 if (ret < 0) {
 787                         rte_eal_init_alert("Cannot get hugepage information.");
 788                         rte_errno = EACCES;
 789                         rte_atomic32_clear(&run_once);
 790                         return -1;
 791                 }
 792         }
 793
 794         if (internal_conf->memory == 0 && internal_conf->force_sockets == 0) {
 795                 if (internal_conf->no_hugetlbfs)
 796                         internal_conf->memory = MEMSIZE_IF_NO_HUGE_PAGE;
 797                 else
 798                         internal_conf->memory = eal_get_hugepage_mem_size();
 799         }
 800
 801         if (internal_conf->vmware_tsc_map == 1) {
 802 #ifdef RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT
 803                 rte_cycles_vmware_tsc_map = 1;
 804                 RTE_LOG (DEBUG, EAL, "Using VMWARE TSC MAP, "
 805                                 "you must have monitor_control.pseudo_perfctr = TRUE\n");
 806 #else
 807                 RTE_LOG (WARNING, EAL, "Ignoring --vmware-tsc-map because "
 808                                 "RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT is not set\n");
 809 #endif
 810         }
 811
 812         /* in secondary processes, memory init may allocate additional fbarrays
 813          * not present in primary processes, so to avoid any potential issues,
 814          * initialize memzones first.
 815          */
 816         if (rte_eal_memzone_init() < 0) {
 817                 rte_eal_init_alert("Cannot init memzone");
 818                 rte_errno = ENODEV;
 819                 return -1;
 820         }
 821
 822         if (rte_eal_memory_init() < 0) {
 823                 rte_eal_init_alert("Cannot init memory");
 824                 rte_errno = ENOMEM;
 825                 return -1;
 826         }
 827
 828         if (rte_eal_malloc_heap_init() < 0) {
 829                 rte_eal_init_alert("Cannot init malloc heap");
 830                 rte_errno = ENODEV;
 831                 return -1;
 832         }
 833
 834         if (rte_eal_tailqs_init() < 0) {
 835                 rte_eal_init_alert("Cannot init tail queues for objects");
 836                 rte_errno = EFAULT;
 837                 return -1;
 838         }
 839
 840         if (rte_eal_timer_init() < 0) {
 841                 rte_eal_init_alert("Cannot init HPET or TSC timers");
 842                 rte_errno = ENOTSUP;
 843                 return -1;
 844         }
 845
 846         eal_check_mem_on_local_socket();
 847
 848         eal_thread_init_master(config->master_lcore);
 849
 850         ret = eal_thread_dump_affinity(cpuset, sizeof(cpuset));
 851
 852         RTE_LOG(DEBUG, EAL, "Master lcore %u is ready (tid=%p;cpuset=[%s%s])\n",
 853                 config->master_lcore, thread_id, cpuset,
 854                 ret == 0 ? "" : "...");
 855
 856         RTE_LCORE_FOREACH_SLAVE(i) {
 857
 858                 /*
 859                  * create communication pipes between master thread
 860                  * and children
 861                  */
 862                 if (pipe(lcore_config[i].pipe_master2slave) < 0)
 863                         rte_panic("Cannot create pipe\n");
 864                 if (pipe(lcore_config[i].pipe_slave2master) < 0)
 865                         rte_panic("Cannot create pipe\n");
 866
 867                 lcore_config[i].state = WAIT;
 868
 869                 /* create a thread for each lcore */
 870                 ret = pthread_create(&lcore_config[i].thread_id, NULL,
 871                                      eal_thread_loop, NULL);
 872                 if (ret != 0)
 873                         rte_panic("Cannot create thread\n");
 874
 875                 /* Set thread_name for aid in debugging. */
 876                 snprintf(thread_name, sizeof(thread_name),
 877                                 "lcore-slave-%d", i);
 878                 rte_thread_setname(lcore_config[i].thread_id, thread_name);
 879         }
 880
 881         /*
 882          * Launch a dummy function on all slave lcores, so that master lcore
 883          * knows they are all ready when this function returns.
 884          */
 885         rte_eal_mp_remote_launch(sync_func, NULL, SKIP_MASTER);
 886         rte_eal_mp_wait_lcore();
 887
 888         /* initialize services so vdevs register service during bus_probe. */
 889         ret = rte_service_init();
 890         if (ret) {
 891                 rte_eal_init_alert("rte_service_init() failed");
 892                 rte_errno = ENOEXEC;
 893                 return -1;
 894         }
 895
 896         /* Probe all the buses and devices/drivers on them */
 897         if (rte_bus_probe()) {
 898                 rte_eal_init_alert("Cannot probe devices");
 899                 rte_errno = ENOTSUP;
 900                 return -1;
 901         }
 902
 903         /* initialize default service/lcore mappings and start running. Ignore
 904          * -ENOTSUP, as it indicates no service coremask passed to EAL.
 905          */
 906         ret = rte_service_start_with_defaults();
 907         if (ret < 0 && ret != -ENOTSUP) {
 908                 rte_errno = ENOEXEC;
 909                 return -1;
 910         }
 911
 912         /*
 913          * Clean up unused files in runtime directory. We do this at the end of
 914          * init and not at the beginning because we want to clean stuff up
 915          * whether we are primary or secondary process, but we cannot remove
 916          * primary process' files because secondary should be able to run even
 917          * if primary process is dead.
 918          *
 919          * In no_shconf mode, no runtime directory is created in the first
 920          * place, so no cleanup needed.
 921          */
 922         if (!internal_conf->no_shconf && eal_clean_runtime_dir() < 0) {
 923                 rte_eal_init_alert("Cannot clear runtime directory");
 924                 return -1;
 925         }
 926         if (!internal_conf->no_telemetry) {
 927                 const char *error_str = NULL;
 928                 if (rte_telemetry_init(rte_eal_get_runtime_dir(),
 929                                 &internal_conf->ctrl_cpuset, &error_str)
 930                                 != 0) {
 931                         rte_eal_init_alert(error_str);
 932                         return -1;
 933                 }
 934                 if (error_str != NULL)
 935                         RTE_LOG(NOTICE, EAL, "%s\n", error_str);
 936         }
 937
 938         eal_mcfg_complete();
 939
 940         return fctret;
 941 }
 942
 943 int
 944 rte_eal_cleanup(void)
 945 {
 946         struct internal_config *internal_conf =
 947                 eal_get_internal_configuration();
 948         rte_service_finalize();
 949         rte_mp_channel_cleanup();
 950         rte_trace_save();
 951         eal_trace_fini();
 952         eal_cleanup_config(internal_conf);
 953         return 0;
 954 }
 955
 956 int rte_eal_create_uio_dev(void)
 957 {
 958         const struct internal_config *internal_conf =
 959                 eal_get_internal_configuration();
 960         return internal_conf->create_uio_dev;
 961 }
 962
 963 enum rte_intr_mode
 964 rte_eal_vfio_intr_mode(void)
 965 {
 966         return RTE_INTR_MODE_NONE;
 967 }
 968
 969 void
 970 rte_eal_vfio_get_vf_token(__rte_unused rte_uuid_t vf_token)
 971 {
 972 }
 973
 974 int rte_vfio_setup_device(__rte_unused const char *sysfs_base,
 975                       __rte_unused const char *dev_addr,
 976                       __rte_unused int *vfio_dev_fd,
 977                       __rte_unused struct vfio_device_info *device_info)
 978 {
 979         return -1;
 980 }
 981
 982 int rte_vfio_release_device(__rte_unused const char *sysfs_base,
 983                         __rte_unused const char *dev_addr,
 984                         __rte_unused int fd)
 985 {
 986         return -1;
 987 }
 988
 989 int rte_vfio_enable(__rte_unused const char *modname)
 990 {
 991         return -1;
 992 }
 993
 994 int rte_vfio_is_enabled(__rte_unused const char *modname)
 995 {
 996         return 0;
 997 }
 998
 999 int rte_vfio_noiommu_is_enabled(void)
1000 {
1001         return 0;
1002 }
1003
1004 int rte_vfio_clear_group(__rte_unused int vfio_group_fd)
1005 {
1006         return 0;
1007 }
1008
1009 int
1010 rte_vfio_get_group_num(__rte_unused const char *sysfs_base,
1011                        __rte_unused const char *dev_addr,
1012                        __rte_unused int *iommu_group_num)
1013 {
1014         return -1;
1015 }
1016
1017 int
1018 rte_vfio_get_container_fd(void)
1019 {
1020         return -1;
1021 }
1022
1023 int
1024 rte_vfio_get_group_fd(__rte_unused int iommu_group_num)
1025 {
1026         return -1;
1027 }
1028
1029 int
1030 rte_vfio_container_create(void)
1031 {
1032         return -1;
1033 }
1034
1035 int
1036 rte_vfio_container_destroy(__rte_unused int container_fd)
1037 {
1038         return -1;
1039 }
1040
1041 int
1042 rte_vfio_container_group_bind(__rte_unused int container_fd,
1043                 __rte_unused int iommu_group_num)
1044 {
1045         return -1;
1046 }
1047
1048 int
1049 rte_vfio_container_group_unbind(__rte_unused int container_fd,
1050                 __rte_unused int iommu_group_num)
1051 {
1052         return -1;
1053 }
1054
1055 int
1056 rte_vfio_container_dma_map(__rte_unused int container_fd,
1057                         __rte_unused uint64_t vaddr,
1058                         __rte_unused uint64_t iova,
1059                         __rte_unused uint64_t len)
1060 {
1061         return -1;
1062 }
1063
1064 int
1065 rte_vfio_container_dma_unmap(__rte_unused int container_fd,
1066                         __rte_unused uint64_t vaddr,
1067                         __rte_unused uint64_t iova,
1068                         __rte_unused uint64_t len)
1069 {
1070         return -1;
1071 }