lib/librte_eal/linuxapp/eal/eal.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
   5  *   Copyright(c) 2012-2014 6WIND S.A.
   6  *   All rights reserved.
   7  *
   8  *   Redistribution and use in source and binary forms, with or without
   9  *   modification, are permitted provided that the following conditions
  10  *   are met:
  11  *
  12  *     * Redistributions of source code must retain the above copyright
  13  *       notice, this list of conditions and the following disclaimer.
  14  *     * Redistributions in binary form must reproduce the above copyright
  15  *       notice, this list of conditions and the following disclaimer in
  16  *       the documentation and/or other materials provided with the
  17  *       distribution.
  18  *     * Neither the name of Intel Corporation nor the names of its
  19  *       contributors may be used to endorse or promote products derived
  20  *       from this software without specific prior written permission.
  21  *
  22  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  23  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  24  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  25  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  26  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  27  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  28  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  29  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  30  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  31  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  32  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #include <stdio.h>
  36 #include <stdlib.h>
  37 #include <stdint.h>
  38 #include <string.h>
  39 #include <stdarg.h>
  40 #include <unistd.h>
  41 #include <pthread.h>
  42 #include <syslog.h>
  43 #include <getopt.h>
  44 #include <sys/file.h>
  45 #include <fcntl.h>
  46 #include <dlfcn.h>
  47 #include <stddef.h>
  48 #include <errno.h>
  49 #include <limits.h>
  50 #include <errno.h>
  51 #include <sys/mman.h>
  52 #include <sys/queue.h>
  53 #include <sys/io.h>
  54
  55 #include <rte_common.h>
  56 #include <rte_debug.h>
  57 #include <rte_memory.h>
  58 #include <rte_memzone.h>
  59 #include <rte_launch.h>
  60 #include <rte_tailq.h>
  61 #include <rte_eal.h>
  62 #include <rte_eal_memconfig.h>
  63 #include <rte_per_lcore.h>
  64 #include <rte_lcore.h>
  65 #include <rte_log.h>
  66 #include <rte_random.h>
  67 #include <rte_cycles.h>
  68 #include <rte_string_fns.h>
  69 #include <rte_cpuflags.h>
  70 #include <rte_interrupts.h>
  71 #include <rte_pci.h>
  72 #include <rte_devargs.h>
  73 #include <rte_common.h>
  74 #include <rte_version.h>
  75 #include <rte_atomic.h>
  76 #include <malloc_heap.h>
  77 #include <rte_eth_ring.h>
  78 #include <rte_dev.h>
  79
  80 #include "eal_private.h"
  81 #include "eal_thread.h"
  82 #include "eal_internal_cfg.h"
  83 #include "eal_filesystem.h"
  84 #include "eal_hugepages.h"
  85
  86 #define OPT_HUGE_DIR    "huge-dir"
  87 #define OPT_PROC_TYPE   "proc-type"
  88 #define OPT_NO_SHCONF   "no-shconf"
  89 #define OPT_NO_HPET     "no-hpet"
  90 #define OPT_VMWARE_TSC_MAP   "vmware-tsc-map"
  91 #define OPT_NO_PCI      "no-pci"
  92 #define OPT_NO_HUGE     "no-huge"
  93 #define OPT_FILE_PREFIX "file-prefix"
  94 #define OPT_SOCKET_MEM  "socket-mem"
  95 #define OPT_PCI_WHITELIST "pci-whitelist"
  96 #define OPT_PCI_BLACKLIST "pci-blacklist"
  97 #define OPT_VDEV        "vdev"
  98 #define OPT_SYSLOG      "syslog"
  99 #define OPT_LOG_LEVEL   "log-level"
 100 #define OPT_BASE_VIRTADDR   "base-virtaddr"
 101 #define OPT_XEN_DOM0    "xen-dom0"
 102 #define OPT_CREATE_UIO_DEV "create-uio-dev"
 103 #define OPT_VFIO_INTR    "vfio-intr"
 104
 105 #define MEMSIZE_IF_NO_HUGE_PAGE (64ULL * 1024ULL * 1024ULL)
 106
 107 #define SOCKET_MEM_STRLEN (RTE_MAX_NUMA_NODES * 10)
 108
 109 #define HIGHEST_RPL 3
 110
 111 #define BITS_PER_HEX 4
 112
 113 /* Allow the application to print its usage message too if set */
 114 static rte_usage_hook_t rte_application_usage_hook = NULL;
 115
 116 TAILQ_HEAD(shared_driver_list, shared_driver);
 117
 118 /* Definition for shared object drivers. */
 119 struct shared_driver {
 120         TAILQ_ENTRY(shared_driver) next;
 121
 122         char    name[PATH_MAX];
 123         void*   lib_handle;
 124 };
 125
 126 /* List of external loadable drivers */
 127 static struct shared_driver_list solib_list =
 128 TAILQ_HEAD_INITIALIZER(solib_list);
 129
 130 /* early configuration structure, when memory config is not mmapped */
 131 static struct rte_mem_config early_mem_config;
 132
 133 /* define fd variable here, because file needs to be kept open for the
 134  * duration of the program, as we hold a write lock on it in the primary proc */
 135 static int mem_cfg_fd = -1;
 136
 137 static struct flock wr_lock = {
 138                 .l_type = F_WRLCK,
 139                 .l_whence = SEEK_SET,
 140                 .l_start = offsetof(struct rte_mem_config, memseg),
 141                 .l_len = sizeof(early_mem_config.memseg),
 142 };
 143
 144 /* Address of global and public configuration */
 145 static struct rte_config rte_config = {
 146                 .mem_config = &early_mem_config,
 147 };
 148
 149 /* internal configuration (per-core) */
 150 struct lcore_config lcore_config[RTE_MAX_LCORE];
 151
 152 /* internal configuration */
 153 struct internal_config internal_config;
 154
 155 /* used by rte_rdtsc() */
 156 int rte_cycles_vmware_tsc_map;
 157
 158 /* Return a pointer to the configuration structure */
 159 struct rte_config *
 160 rte_eal_get_configuration(void)
 161 {
 162         return &rte_config;
 163 }
 164
 165 /* parse a sysfs (or other) file containing one integer value */
 166 int
 167 eal_parse_sysfs_value(const char *filename, unsigned long *val)
 168 {
 169         FILE *f;
 170         char buf[BUFSIZ];
 171         char *end = NULL;
 172
 173         if ((f = fopen(filename, "r")) == NULL) {
 174                 RTE_LOG(ERR, EAL, "%s(): cannot open sysfs value %s\n",
 175                         __func__, filename);
 176                 return -1;
 177         }
 178
 179         if (fgets(buf, sizeof(buf), f) == NULL) {
 180                 RTE_LOG(ERR, EAL, "%s(): cannot read sysfs value %s\n",
 181                         __func__, filename);
 182                 fclose(f);
 183                 return -1;
 184         }
 185         *val = strtoul(buf, &end, 0);
 186         if ((buf[0] == '\0') || (end == NULL) || (*end != '\n')) {
 187                 RTE_LOG(ERR, EAL, "%s(): cannot parse sysfs value %s\n",
 188                                 __func__, filename);
 189                 fclose(f);
 190                 return -1;
 191         }
 192         fclose(f);
 193         return 0;
 194 }
 195
 196
 197 /* create memory configuration in shared/mmap memory. Take out
 198  * a write lock on the memsegs, so we can auto-detect primary/secondary.
 199  * This means we never close the file while running (auto-close on exit).
 200  * We also don't lock the whole file, so that in future we can use read-locks
 201  * on other parts, e.g. memzones, to detect if there are running secondary
 202  * processes. */
 203 static void
 204 rte_eal_config_create(void)
 205 {
 206         void *rte_mem_cfg_addr;
 207         int retval;
 208
 209         const char *pathname = eal_runtime_config_path();
 210
 211         if (internal_config.no_shconf)
 212                 return;
 213
 214         /* map the config before hugepage address so that we don't waste a page */
 215         if (internal_config.base_virtaddr != 0)
 216                 rte_mem_cfg_addr = (void *)
 217                         RTE_ALIGN_FLOOR(internal_config.base_virtaddr -
 218                         sizeof(struct rte_mem_config), sysconf(_SC_PAGE_SIZE));
 219         else
 220                 rte_mem_cfg_addr = NULL;
 221
 222         if (mem_cfg_fd < 0){
 223                 mem_cfg_fd = open(pathname, O_RDWR | O_CREAT, 0660);
 224                 if (mem_cfg_fd < 0)
 225                         rte_panic("Cannot open '%s' for rte_mem_config\n", pathname);
 226         }
 227
 228         retval = ftruncate(mem_cfg_fd, sizeof(*rte_config.mem_config));
 229         if (retval < 0){
 230                 close(mem_cfg_fd);
 231                 rte_panic("Cannot resize '%s' for rte_mem_config\n", pathname);
 232         }
 233
 234         retval = fcntl(mem_cfg_fd, F_SETLK, &wr_lock);
 235         if (retval < 0){
 236                 close(mem_cfg_fd);
 237                 rte_exit(EXIT_FAILURE, "Cannot create lock on '%s'. Is another primary "
 238                                 "process running?\n", pathname);
 239         }
 240
 241         rte_mem_cfg_addr = mmap(rte_mem_cfg_addr, sizeof(*rte_config.mem_config),
 242                                 PROT_READ | PROT_WRITE, MAP_SHARED, mem_cfg_fd, 0);
 243
 244         if (rte_mem_cfg_addr == MAP_FAILED){
 245                 rte_panic("Cannot mmap memory for rte_config\n");
 246         }
 247         memcpy(rte_mem_cfg_addr, &early_mem_config, sizeof(early_mem_config));
 248         rte_config.mem_config = (struct rte_mem_config *) rte_mem_cfg_addr;
 249
 250         /* store address of the config in the config itself so that secondary
 251          * processes could later map the config into this exact location */
 252         rte_config.mem_config->mem_cfg_addr = (uintptr_t) rte_mem_cfg_addr;
 253
 254 }
 255
 256 /* attach to an existing shared memory config */
 257 static void
 258 rte_eal_config_attach(void)
 259 {
 260         struct rte_mem_config *mem_config;
 261
 262         const char *pathname = eal_runtime_config_path();
 263
 264         if (internal_config.no_shconf)
 265                 return;
 266
 267         if (mem_cfg_fd < 0){
 268                 mem_cfg_fd = open(pathname, O_RDWR);
 269                 if (mem_cfg_fd < 0)
 270                         rte_panic("Cannot open '%s' for rte_mem_config\n", pathname);
 271         }
 272
 273         /* map it as read-only first */
 274         mem_config = (struct rte_mem_config *) mmap(NULL, sizeof(*mem_config),
 275                         PROT_READ, MAP_SHARED, mem_cfg_fd, 0);
 276         if (mem_config == MAP_FAILED)
 277                 rte_panic("Cannot mmap memory for rte_config\n");
 278
 279         rte_config.mem_config = mem_config;
 280 }
 281
 282 /* reattach the shared config at exact memory location primary process has it */
 283 static void
 284 rte_eal_config_reattach(void)
 285 {
 286         struct rte_mem_config *mem_config;
 287         void *rte_mem_cfg_addr;
 288
 289         if (internal_config.no_shconf)
 290                 return;
 291
 292         /* save the address primary process has mapped shared config to */
 293         rte_mem_cfg_addr = (void *) (uintptr_t) rte_config.mem_config->mem_cfg_addr;
 294
 295         /* unmap original config */
 296         munmap(rte_config.mem_config, sizeof(struct rte_mem_config));
 297
 298         /* remap the config at proper address */
 299         mem_config = (struct rte_mem_config *) mmap(rte_mem_cfg_addr,
 300                         sizeof(*mem_config), PROT_READ | PROT_WRITE, MAP_SHARED,
 301                         mem_cfg_fd, 0);
 302         close(mem_cfg_fd);
 303         if (mem_config == MAP_FAILED || mem_config != rte_mem_cfg_addr)
 304                 rte_panic("Cannot mmap memory for rte_config\n");
 305
 306         rte_config.mem_config = mem_config;
 307 }
 308
 309 /* Detect if we are a primary or a secondary process */
 310 static enum rte_proc_type_t
 311 eal_proc_type_detect(void)
 312 {
 313         enum rte_proc_type_t ptype = RTE_PROC_PRIMARY;
 314         const char *pathname = eal_runtime_config_path();
 315
 316         /* if we can open the file but not get a write-lock we are a secondary
 317          * process. NOTE: if we get a file handle back, we keep that open
 318          * and don't close it to prevent a race condition between multiple opens */
 319         if (((mem_cfg_fd = open(pathname, O_RDWR)) >= 0) &&
 320                         (fcntl(mem_cfg_fd, F_SETLK, &wr_lock) < 0))
 321                 ptype = RTE_PROC_SECONDARY;
 322
 323         RTE_LOG(INFO, EAL, "Auto-detected process type: %s\n",
 324                         ptype == RTE_PROC_PRIMARY ? "PRIMARY" : "SECONDARY");
 325
 326         return ptype;
 327 }
 328
 329 /* Sets up rte_config structure with the pointer to shared memory config.*/
 330 static void
 331 rte_config_init(void)
 332 {
 333         rte_config.process_type = (internal_config.process_type == RTE_PROC_AUTO) ?
 334                         eal_proc_type_detect() : /* for auto, detect the type */
 335                         internal_config.process_type; /* otherwise use what's already set */
 336
 337         switch (rte_config.process_type){
 338         case RTE_PROC_PRIMARY:
 339                 rte_eal_config_create();
 340                 break;
 341         case RTE_PROC_SECONDARY:
 342                 rte_eal_config_attach();
 343                 rte_eal_mcfg_wait_complete(rte_config.mem_config);
 344                 rte_eal_config_reattach();
 345                 break;
 346         case RTE_PROC_AUTO:
 347         case RTE_PROC_INVALID:
 348                 rte_panic("Invalid process type\n");
 349         }
 350 }
 351
 352 /* Unlocks hugepage directories that were locked by eal_hugepage_info_init */
 353 static void
 354 eal_hugedirs_unlock(void)
 355 {
 356         int i;
 357
 358         for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
 359         {
 360                 /* skip uninitialized */
 361                 if (internal_config.hugepage_info[i].lock_descriptor < 0)
 362                         continue;
 363                 /* unlock hugepage file */
 364                 flock(internal_config.hugepage_info[i].lock_descriptor, LOCK_UN);
 365                 close(internal_config.hugepage_info[i].lock_descriptor);
 366                 /* reset the field */
 367                 internal_config.hugepage_info[i].lock_descriptor = -1;
 368         }
 369 }
 370
 371 /* display usage */
 372 static void
 373 eal_usage(const char *prgname)
 374 {
 375         printf("\nUsage: %s -c COREMASK -n NUM [-m NB] [-r NUM] [-b <domain:bus:devid.func>]"
 376                "[--proc-type primary|secondary|auto] \n\n"
 377                "EAL options:\n"
 378                "  -c COREMASK  : A hexadecimal bitmask of cores to run on\n"
 379                "  -n NUM       : Number of memory channels\n"
 380                    "  -v           : Display version information on startup\n"
 381                "  -d LIB.so    : add driver (can be used multiple times)\n"
 382                "  -m MB        : memory to allocate (see also --"OPT_SOCKET_MEM")\n"
 383                "  -r NUM       : force number of memory ranks (don't detect)\n"
 384                "  --"OPT_XEN_DOM0" : support application running on Xen Domain0 "
 385                            "without hugetlbfs\n"
 386                "  --"OPT_SYSLOG"     : set syslog facility\n"
 387                "  --"OPT_LOG_LEVEL"  : set default log level\n"
 388                "  --"OPT_SOCKET_MEM" : memory to allocate on specific\n"
 389                    "                 sockets (use comma separated values)\n"
 390                "  --"OPT_HUGE_DIR"   : directory where hugetlbfs is mounted\n"
 391                "  --"OPT_PROC_TYPE"  : type of this process\n"
 392                "  --"OPT_FILE_PREFIX": prefix for hugepage filenames\n"
 393                "  --"OPT_PCI_BLACKLIST", -b: add a PCI device in black list.\n"
 394                "               Prevent EAL from using this PCI device. The argument\n"
 395                "               format is <domain:bus:devid.func>.\n"
 396                "  --"OPT_PCI_WHITELIST", -w: add a PCI device in white list.\n"
 397                "               Only use the specified PCI devices. The argument format\n"
 398                "               is <[domain:]bus:devid.func>. This option can be present\n"
 399                "               several times (once per device).\n"
 400                "               [NOTE: PCI whitelist cannot be used with -b option]\n"
 401                "  --"OPT_VDEV": add a virtual device.\n"
 402                "               The argument format is <driver><id>[,key=val,...]\n"
 403                "               (ex: --vdev=eth_pcap0,iface=eth2).\n"
 404                "  --"OPT_VMWARE_TSC_MAP": use VMware TSC map instead of native RDTSC\n"
 405                "  --"OPT_BASE_VIRTADDR": specify base virtual address\n"
 406                "  --"OPT_VFIO_INTR": specify desired interrupt mode for VFIO "
 407                            "(legacy|msi|msix)\n"
 408                "  --"OPT_CREATE_UIO_DEV": create /dev/uioX (usually done by hotplug)\n"
 409                "\nEAL options for DEBUG use only:\n"
 410                "  --"OPT_NO_HUGE"  : use malloc instead of hugetlbfs\n"
 411                "  --"OPT_NO_PCI"   : disable pci\n"
 412                "  --"OPT_NO_HPET"  : disable hpet\n"
 413                "  --"OPT_NO_SHCONF": no shared config (mmap'd files)\n"
 414                "\n",
 415                prgname);
 416         /* Allow the application to print its usage message too if hook is set */
 417         if ( rte_application_usage_hook ) {
 418                 printf("===== Application Usage =====\n\n");
 419                 rte_application_usage_hook(prgname);
 420         }
 421 }
 422
 423 /* Set a per-application usage message */
 424 rte_usage_hook_t
 425 rte_set_application_usage_hook( rte_usage_hook_t usage_func )
 426 {
 427         rte_usage_hook_t        old_func;
 428
 429         /* Will be NULL on the first call to denote the last usage routine. */
 430         old_func                                        = rte_application_usage_hook;
 431         rte_application_usage_hook      = usage_func;
 432
 433         return old_func;
 434 }
 435
 436 /*
 437  * Parse the coremask given as argument (hexadecimal string) and fill
 438  * the global configuration (core role and core count) with the parsed
 439  * value.
 440  */
 441 static int xdigit2val(unsigned char c)
 442 {
 443         int val;
 444         if(isdigit(c))
 445                 val = c - '0';
 446         else if(isupper(c))
 447                 val = c - 'A' + 10;
 448         else
 449                 val = c - 'a' + 10;
 450         return val;
 451 }
 452 static int
 453 eal_parse_coremask(const char *coremask)
 454 {
 455         struct rte_config *cfg = rte_eal_get_configuration();
 456         int i, j, idx = 0 ;
 457         unsigned count = 0;
 458         char c;
 459         int val;
 460
 461         if (coremask == NULL)
 462                 return -1;
 463         /* Remove all blank characters ahead and after .
 464          * Remove 0x/0X if exists.
 465          */
 466         while (isblank(*coremask))
 467                 coremask++;
 468         if (coremask[0] == '0' && ((coremask[1] == 'x')
 469                 ||  (coremask[1] == 'X')) )
 470                 coremask += 2;
 471         i = strnlen(coremask, PATH_MAX);
 472         while ((i > 0) && isblank(coremask[i - 1]))
 473                 i--;
 474         if (i == 0)
 475                 return -1;
 476
 477         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 478                 c = coremask[i];
 479                 if (isxdigit(c) == 0) {
 480                         /* invalid characters */
 481                         return (-1);
 482                 }
 483                 val = xdigit2val(c);
 484                 for(j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++) {
 485                         if((1 << j) & val) {
 486                                 if (!lcore_config[idx].detected) {
 487                                         RTE_LOG(ERR, EAL, "lcore %u "
 488                                                 "unavailable\n", idx);
 489                                         return -1;
 490                                 }
 491                                 cfg->lcore_role[idx] = ROLE_RTE;
 492                                 if(count == 0)
 493                                         cfg->master_lcore = idx;
 494                                 count++;
 495                         } else  {
 496                                 cfg->lcore_role[idx] = ROLE_OFF;
 497                         }
 498                 }
 499         }
 500         for(; i >= 0; i--)
 501                 if(coremask[i] != '0')
 502                         return -1;
 503         for(; idx < RTE_MAX_LCORE; idx++)
 504                 cfg->lcore_role[idx] = ROLE_OFF;
 505         if(count == 0)
 506                 return -1;
 507         /* Update the count of enabled logical cores of the EAL configuration */
 508         cfg->lcore_count = count;
 509         return 0;
 510 }
 511
 512 static int
 513 eal_parse_syslog(const char *facility)
 514 {
 515         int i;
 516         static struct {
 517                 const char *name;
 518                 int value;
 519         } map[] = {
 520                 { "auth", LOG_AUTH },
 521                 { "cron", LOG_CRON },
 522                 { "daemon", LOG_DAEMON },
 523                 { "ftp", LOG_FTP },
 524                 { "kern", LOG_KERN },
 525                 { "lpr", LOG_LPR },
 526                 { "mail", LOG_MAIL },
 527                 { "news", LOG_NEWS },
 528                 { "syslog", LOG_SYSLOG },
 529                 { "user", LOG_USER },
 530                 { "uucp", LOG_UUCP },
 531                 { "local0", LOG_LOCAL0 },
 532                 { "local1", LOG_LOCAL1 },
 533                 { "local2", LOG_LOCAL2 },
 534                 { "local3", LOG_LOCAL3 },
 535                 { "local4", LOG_LOCAL4 },
 536                 { "local5", LOG_LOCAL5 },
 537                 { "local6", LOG_LOCAL6 },
 538                 { "local7", LOG_LOCAL7 },
 539                 { NULL, 0 }
 540         };
 541
 542         for (i = 0; map[i].name; i++) {
 543                 if (!strcmp(facility, map[i].name)) {
 544                         internal_config.syslog_facility = map[i].value;
 545                         return 0;
 546                 }
 547         }
 548         return -1;
 549 }
 550
 551 static int
 552 eal_parse_log_level(const char *level, uint32_t *log_level)
 553 {
 554         char *end;
 555         unsigned long tmp;
 556
 557         errno = 0;
 558         tmp = strtoul(level, &end, 0);
 559
 560         /* check for errors */
 561         if ((errno != 0) || (level[0] == '\0') ||
 562             end == NULL || (*end != '\0'))
 563                 return -1;
 564
 565         /* log_level is a uint32_t */
 566         if (tmp >= UINT32_MAX)
 567                 return -1;
 568
 569         *log_level = tmp;
 570         return 0;
 571 }
 572
 573 static int
 574 eal_parse_socket_mem(char *socket_mem)
 575 {
 576         char * arg[RTE_MAX_NUMA_NODES];
 577         char *end;
 578         int arg_num, i, len;
 579         uint64_t total_mem = 0;
 580
 581         len = strnlen(socket_mem, SOCKET_MEM_STRLEN);
 582         if (len == SOCKET_MEM_STRLEN) {
 583                 RTE_LOG(ERR, EAL, "--socket-mem is too long\n");
 584                 return -1;
 585         }
 586
 587         /* all other error cases will be caught later */
 588         if (!isdigit(socket_mem[len-1]))
 589                 return -1;
 590
 591         /* split the optarg into separate socket values */
 592         arg_num = rte_strsplit(socket_mem, len,
 593                         arg, RTE_MAX_NUMA_NODES, ',');
 594
 595         /* if split failed, or 0 arguments */
 596         if (arg_num <= 0)
 597                 return -1;
 598
 599         internal_config.force_sockets = 1;
 600
 601         /* parse each defined socket option */
 602         errno = 0;
 603         for (i = 0; i < arg_num; i++) {
 604                 end = NULL;
 605                 internal_config.socket_mem[i] = strtoull(arg[i], &end, 10);
 606
 607                 /* check for invalid input */
 608                 if ((errno != 0)  ||
 609                                 (arg[i][0] == '\0') || (end == NULL) || (*end != '\0'))
 610                         return -1;
 611                 internal_config.socket_mem[i] *= 1024ULL;
 612                 internal_config.socket_mem[i] *= 1024ULL;
 613                 total_mem += internal_config.socket_mem[i];
 614         }
 615
 616         /* check if we have a positive amount of total memory */
 617         if (total_mem == 0)
 618                 return -1;
 619
 620         return 0;
 621 }
 622
 623 static int
 624 eal_parse_base_virtaddr(const char *arg)
 625 {
 626         char *end;
 627         uint64_t addr;
 628
 629         errno = 0;
 630         addr = strtoull(arg, &end, 16);
 631
 632         /* check for errors */
 633         if ((errno != 0) || (arg[0] == '\0') || end == NULL || (*end != '\0'))
 634                 return -1;
 635
 636         /* make sure we don't exceed 32-bit boundary on 32-bit target */
 637 #ifndef RTE_ARCH_X86_64
 638         if (addr >= UINTPTR_MAX)
 639                 return -1;
 640 #endif
 641
 642         /* align the addr on 2M boundary */
 643         internal_config.base_virtaddr = RTE_PTR_ALIGN_CEIL((uintptr_t)addr,
 644                                                            RTE_PGSIZE_2M);
 645
 646         return 0;
 647 }
 648
 649 static int
 650 eal_parse_vfio_intr(const char *mode)
 651 {
 652         unsigned i;
 653         static struct {
 654                 const char *name;
 655                 enum rte_intr_mode value;
 656         } map[] = {
 657                 { "legacy", RTE_INTR_MODE_LEGACY },
 658                 { "msi", RTE_INTR_MODE_MSI },
 659                 { "msix", RTE_INTR_MODE_MSIX },
 660         };
 661
 662         for (i = 0; i < RTE_DIM(map); i++) {
 663                 if (!strcmp(mode, map[i].name)) {
 664                         internal_config.vfio_intr_mode = map[i].value;
 665                         return 0;
 666                 }
 667         }
 668         return -1;
 669 }
 670
 671 static inline size_t
 672 eal_get_hugepage_mem_size(void)
 673 {
 674         uint64_t size = 0;
 675         unsigned i, j;
 676
 677         for (i = 0; i < internal_config.num_hugepage_sizes; i++) {
 678                 struct hugepage_info *hpi = &internal_config.hugepage_info[i];
 679                 if (hpi->hugedir != NULL) {
 680                         for (j = 0; j < RTE_MAX_NUMA_NODES; j++) {
 681                                 size += hpi->hugepage_sz * hpi->num_pages[j];
 682                         }
 683                 }
 684         }
 685
 686         return (size < SIZE_MAX) ? (size_t)(size) : SIZE_MAX;
 687 }
 688
 689 static enum rte_proc_type_t
 690 eal_parse_proc_type(const char *arg)
 691 {
 692         if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
 693                 return RTE_PROC_PRIMARY;
 694         if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
 695                 return RTE_PROC_SECONDARY;
 696         if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
 697                 return RTE_PROC_AUTO;
 698
 699         return RTE_PROC_INVALID;
 700 }
 701
 702 /* Parse the argument given in the command line of the application */
 703 static int
 704 eal_parse_args(int argc, char **argv)
 705 {
 706         int opt, ret, i;
 707         char **argvopt;
 708         int option_index;
 709         int coremask_ok = 0;
 710         char *prgname = argv[0];
 711         static struct option lgopts[] = {
 712                 {OPT_NO_HUGE, 0, 0, 0},
 713                 {OPT_NO_PCI, 0, 0, 0},
 714                 {OPT_NO_HPET, 0, 0, 0},
 715                 {OPT_VMWARE_TSC_MAP, 0, 0, 0},
 716                 {OPT_HUGE_DIR, 1, 0, 0},
 717                 {OPT_NO_SHCONF, 0, 0, 0},
 718                 {OPT_PROC_TYPE, 1, 0, 0},
 719                 {OPT_FILE_PREFIX, 1, 0, 0},
 720                 {OPT_SOCKET_MEM, 1, 0, 0},
 721                 {OPT_PCI_WHITELIST, 1, 0, 0},
 722                 {OPT_PCI_BLACKLIST, 1, 0, 0},
 723                 {OPT_VDEV, 1, 0, 0},
 724                 {OPT_SYSLOG, 1, NULL, 0},
 725                 {OPT_LOG_LEVEL, 1, NULL, 0},
 726                 {OPT_VFIO_INTR, 1, NULL, 0},
 727                 {OPT_BASE_VIRTADDR, 1, 0, 0},
 728                 {OPT_XEN_DOM0, 0, 0, 0},
 729                 {OPT_CREATE_UIO_DEV, 1, NULL, 0},
 730                 {0, 0, 0, 0}
 731         };
 732         struct shared_driver *solib;
 733
 734         argvopt = argv;
 735
 736         internal_config.memory = 0;
 737         internal_config.force_nrank = 0;
 738         internal_config.force_nchannel = 0;
 739         internal_config.hugefile_prefix = HUGEFILE_PREFIX_DEFAULT;
 740         internal_config.hugepage_dir = NULL;
 741         internal_config.force_sockets = 0;
 742         internal_config.syslog_facility = LOG_DAEMON;
 743         /* default value from build option */
 744         internal_config.log_level = RTE_LOG_LEVEL;
 745         internal_config.xen_dom0_support = 0;
 746         /* if set to NONE, interrupt mode is determined automatically */
 747         internal_config.vfio_intr_mode = RTE_INTR_MODE_NONE;
 748 #ifdef RTE_LIBEAL_USE_HPET
 749         internal_config.no_hpet = 0;
 750 #else
 751         internal_config.no_hpet = 1;
 752 #endif
 753         /* zero out the NUMA config */
 754         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 755                 internal_config.socket_mem[i] = 0;
 756
 757         /* zero out hugedir descriptors */
 758         for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
 759                 internal_config.hugepage_info[i].lock_descriptor = -1;
 760
 761         internal_config.vmware_tsc_map = 0;
 762         internal_config.base_virtaddr = 0;
 763
 764         while ((opt = getopt_long(argc, argvopt, "b:w:c:d:m:n:r:v",
 765                                   lgopts, &option_index)) != EOF) {
 766
 767                 switch (opt) {
 768                 /* blacklist */
 769                 case 'b':
 770                         if (rte_eal_devargs_add(RTE_DEVTYPE_BLACKLISTED_PCI,
 771                                         optarg) < 0) {
 772                                 eal_usage(prgname);
 773                                 return (-1);
 774                         }
 775                         break;
 776                 /* whitelist */
 777                 case 'w':
 778                         if (rte_eal_devargs_add(RTE_DEVTYPE_WHITELISTED_PCI,
 779                                         optarg) < 0) {
 780                                 eal_usage(prgname);
 781                                 return -1;
 782                         }
 783                         break;
 784                 /* coremask */
 785                 case 'c':
 786                         if (eal_parse_coremask(optarg) < 0) {
 787                                 RTE_LOG(ERR, EAL, "invalid coremask\n");
 788                                 eal_usage(prgname);
 789                                 return -1;
 790                         }
 791                         coremask_ok = 1;
 792                         break;
 793                 /* force loading of external driver */
 794                 case 'd':
 795                         solib = malloc(sizeof(*solib));
 796                         if (solib == NULL) {
 797                                 RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
 798                                 return -1;
 799                         }
 800                         memset(solib, 0, sizeof(*solib));
 801                         strncpy(solib->name, optarg, PATH_MAX-1);
 802                         solib->name[PATH_MAX-1] = 0;
 803                         TAILQ_INSERT_TAIL(&solib_list, solib, next);
 804                         break;
 805                 /* size of memory */
 806                 case 'm':
 807                         internal_config.memory = atoi(optarg);
 808                         internal_config.memory *= 1024ULL;
 809                         internal_config.memory *= 1024ULL;
 810                         break;
 811                 /* force number of channels */
 812                 case 'n':
 813                         internal_config.force_nchannel = atoi(optarg);
 814                         if (internal_config.force_nchannel == 0 ||
 815                             internal_config.force_nchannel > 4) {
 816                                 RTE_LOG(ERR, EAL, "invalid channel number\n");
 817                                 eal_usage(prgname);
 818                                 return -1;
 819                         }
 820                         break;
 821                 /* force number of ranks */
 822                 case 'r':
 823                         internal_config.force_nrank = atoi(optarg);
 824                         if (internal_config.force_nrank == 0 ||
 825                             internal_config.force_nrank > 16) {
 826                                 RTE_LOG(ERR, EAL, "invalid rank number\n");
 827                                 eal_usage(prgname);
 828                                 return -1;
 829                         }
 830                         break;
 831                 case 'v':
 832                         /* since message is explicitly requested by user, we
 833                          * write message at highest log level so it can always be seen
 834                          * even if info or warning messages are disabled */
 835                         RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
 836                         break;
 837
 838                 /* long options */
 839                 case 0:
 840                         if (!strcmp(lgopts[option_index].name, OPT_NO_HUGE)) {
 841                                 internal_config.no_hugetlbfs = 1;
 842                         }
 843                         if (!strcmp(lgopts[option_index].name, OPT_XEN_DOM0)) {
 844                 #ifdef RTE_LIBRTE_XEN_DOM0
 845                                 internal_config.xen_dom0_support = 1;
 846                 #else
 847                                 RTE_LOG(ERR, EAL, "Can't support DPDK app "
 848                                         "running on Dom0, please configure"
 849                                         " RTE_LIBRTE_XEN_DOM0=y\n");
 850                                 return -1;
 851                 #endif
 852                         }
 853                         else if (!strcmp(lgopts[option_index].name, OPT_NO_PCI)) {
 854                                 internal_config.no_pci = 1;
 855                         }
 856                         else if (!strcmp(lgopts[option_index].name, OPT_NO_HPET)) {
 857                                 internal_config.no_hpet = 1;
 858                         }
 859                         else if (!strcmp(lgopts[option_index].name, OPT_VMWARE_TSC_MAP)) {
 860                                 internal_config.vmware_tsc_map = 1;
 861                         }
 862                         else if (!strcmp(lgopts[option_index].name, OPT_NO_SHCONF)) {
 863                                 internal_config.no_shconf = 1;
 864                         }
 865                         else if (!strcmp(lgopts[option_index].name, OPT_HUGE_DIR)) {
 866                                 internal_config.hugepage_dir = optarg;
 867                         }
 868                         else if (!strcmp(lgopts[option_index].name, OPT_PROC_TYPE)) {
 869                                 internal_config.process_type = eal_parse_proc_type(optarg);
 870                         }
 871                         else if (!strcmp(lgopts[option_index].name, OPT_FILE_PREFIX)) {
 872                                 internal_config.hugefile_prefix = optarg;
 873                         }
 874                         else if (!strcmp(lgopts[option_index].name, OPT_SOCKET_MEM)) {
 875                                 if (eal_parse_socket_mem(optarg) < 0) {
 876                                         RTE_LOG(ERR, EAL, "invalid parameters for --"
 877                                                         OPT_SOCKET_MEM "\n");
 878                                         eal_usage(prgname);
 879                                         return -1;
 880                                 }
 881                         }
 882                         else if (!strcmp(lgopts[option_index].name, OPT_PCI_BLACKLIST)) {
 883                                 if (rte_eal_devargs_add(RTE_DEVTYPE_BLACKLISTED_PCI,
 884                                                 optarg) < 0) {
 885                                         eal_usage(prgname);
 886                                         return -1;
 887                                 }
 888                         }
 889                         else if (!strcmp(lgopts[option_index].name, OPT_PCI_WHITELIST)) {
 890                                 if (rte_eal_devargs_add(RTE_DEVTYPE_WHITELISTED_PCI,
 891                                                 optarg) < 0) {
 892                                         eal_usage(prgname);
 893                                         return -1;
 894                                 }
 895                         }
 896                         else if (!strcmp(lgopts[option_index].name, OPT_VDEV)) {
 897                                 if (rte_eal_devargs_add(RTE_DEVTYPE_VIRTUAL,
 898                                                 optarg) < 0) {
 899                                         eal_usage(prgname);
 900                                         return -1;
 901                                 }
 902                         }
 903                         else if (!strcmp(lgopts[option_index].name, OPT_SYSLOG)) {
 904                                 if (eal_parse_syslog(optarg) < 0) {
 905                                         RTE_LOG(ERR, EAL, "invalid parameters for --"
 906                                                         OPT_SYSLOG "\n");
 907                                         eal_usage(prgname);
 908                                         return -1;
 909                                 }
 910                         } else if (!strcmp(lgopts[option_index].name,
 911                                          OPT_LOG_LEVEL)) {
 912                                 uint32_t log;
 913
 914                                 if (eal_parse_log_level(optarg, &log) < 0) {
 915                                         RTE_LOG(ERR, EAL,
 916                                                 "invalid parameters for --"
 917                                                 OPT_LOG_LEVEL "\n");
 918                                         eal_usage(prgname);
 919                                         return -1;
 920                                 }
 921                                 internal_config.log_level = log;
 922                         }
 923                         else if (!strcmp(lgopts[option_index].name, OPT_BASE_VIRTADDR)) {
 924                                 if (eal_parse_base_virtaddr(optarg) < 0) {
 925                                         RTE_LOG(ERR, EAL, "invalid parameter for --"
 926                                                         OPT_BASE_VIRTADDR "\n");
 927                                         eal_usage(prgname);
 928                                         return -1;
 929                                 }
 930                         }
 931                         else if (!strcmp(lgopts[option_index].name, OPT_VFIO_INTR)) {
 932                                 if (eal_parse_vfio_intr(optarg) < 0) {
 933                                         RTE_LOG(ERR, EAL, "invalid parameters for --"
 934                                                         OPT_VFIO_INTR "\n");
 935                                         eal_usage(prgname);
 936                                         return -1;
 937                                 }
 938                         }
 939                         else if (!strcmp(lgopts[option_index].name, OPT_CREATE_UIO_DEV)) {
 940                                 internal_config.create_uio_dev = 1;
 941                         } else {
 942                                 RTE_LOG(ERR, EAL, "Option %s is not supported "
 943                                         "on Linux\n",
 944                                         lgopts[option_index].name);
 945                                 eal_usage(prgname);
 946                                 return -1;
 947                         }
 948                         break;
 949
 950                 default:
 951                         eal_usage(prgname);
 952                         return -1;
 953                 }
 954         }
 955
 956         /* sanity checks */
 957         if (!coremask_ok) {
 958                 RTE_LOG(ERR, EAL, "coremask not specified\n");
 959                 eal_usage(prgname);
 960                 return -1;
 961         }
 962         if (internal_config.process_type == RTE_PROC_AUTO){
 963                 internal_config.process_type = eal_proc_type_detect();
 964         }
 965         if (internal_config.process_type == RTE_PROC_INVALID){
 966                 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
 967                 eal_usage(prgname);
 968                 return -1;
 969         }
 970         if (internal_config.process_type == RTE_PROC_PRIMARY &&
 971                         internal_config.force_nchannel == 0) {
 972                 RTE_LOG(ERR, EAL, "Number of memory channels (-n) not specified\n");
 973                 eal_usage(prgname);
 974                 return -1;
 975         }
 976         if (index(internal_config.hugefile_prefix,'%') != NULL){
 977                 RTE_LOG(ERR, EAL, "Invalid char, '%%', in '"OPT_FILE_PREFIX"' option\n");
 978                 eal_usage(prgname);
 979                 return -1;
 980         }
 981         if (internal_config.memory > 0 && internal_config.force_sockets == 1) {
 982                 RTE_LOG(ERR, EAL, "Options -m and --socket-mem cannot be specified "
 983                                 "at the same time\n");
 984                 eal_usage(prgname);
 985                 return -1;
 986         }
 987         /* --no-huge doesn't make sense with either -m or --socket-mem */
 988         if (internal_config.no_hugetlbfs &&
 989                         (internal_config.memory > 0 ||
 990                                         internal_config.force_sockets == 1)) {
 991                 RTE_LOG(ERR, EAL, "Options -m or --socket-mem cannot be specified "
 992                                 "together with --no-huge!\n");
 993                 eal_usage(prgname);
 994                 return -1;
 995         }
 996         /* --xen-dom0 doesn't make sense with --socket-mem */
 997         if (internal_config.xen_dom0_support && internal_config.force_sockets == 1) {
 998                 RTE_LOG(ERR, EAL, "Options --socket-mem cannot be specified "
 999                                         "together with --xen_dom0!\n");
1000                 eal_usage(prgname);
1001                 return -1;
1002         }
1003
1004         if (rte_eal_devargs_type_count(RTE_DEVTYPE_WHITELISTED_PCI) != 0 &&
1005                 rte_eal_devargs_type_count(RTE_DEVTYPE_BLACKLISTED_PCI) != 0) {
1006                 RTE_LOG(ERR, EAL, "Error: blacklist [-b] and whitelist "
1007                         "[-w] options cannot be used at the same time\n");
1008                 eal_usage(prgname);
1009                 return -1;
1010         }
1011
1012         if (optind >= 0)
1013                 argv[optind-1] = prgname;
1014
1015         /* if no memory amounts were requested, this will result in 0 and
1016          * will be overriden later, right after eal_hugepage_info_init() */
1017         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
1018                 internal_config.memory += internal_config.socket_mem[i];
1019
1020         ret = optind-1;
1021         optind = 0; /* reset getopt lib */
1022         return ret;
1023 }
1024
1025 static void
1026 eal_check_mem_on_local_socket(void)
1027 {
1028         const struct rte_memseg *ms;
1029         int i, socket_id;
1030
1031         socket_id = rte_lcore_to_socket_id(rte_config.master_lcore);
1032
1033         ms = rte_eal_get_physmem_layout();
1034
1035         for (i = 0; i < RTE_MAX_MEMSEG; i++)
1036                 if (ms[i].socket_id == socket_id &&
1037                                 ms[i].len > 0)
1038                         return;
1039
1040         RTE_LOG(WARNING, EAL, "WARNING: Master core has no "
1041                         "memory on local socket!\n");
1042 }
1043
1044 static int
1045 sync_func(__attribute__((unused)) void *arg)
1046 {
1047         return 0;
1048 }
1049
1050 inline static void
1051 rte_eal_mcfg_complete(void)
1052 {
1053         /* ALL shared mem_config related INIT DONE */
1054         if (rte_config.process_type == RTE_PROC_PRIMARY)
1055                 rte_config.mem_config->magic = RTE_MAGIC;
1056 }
1057
1058 /*
1059  * Request iopl privilege for all RPL, returns 0 on success
1060  */
1061 static int
1062 rte_eal_iopl_init(void)
1063 {
1064         return iopl(HIGHEST_RPL);
1065 }
1066
1067 /* Launch threads, called at application init(). */
1068 int
1069 rte_eal_init(int argc, char **argv)
1070 {
1071         int i, fctret, ret;
1072         pthread_t thread_id;
1073         static rte_atomic32_t run_once = RTE_ATOMIC32_INIT(0);
1074         struct shared_driver *solib = NULL;
1075         const char *logid;
1076
1077         if (!rte_atomic32_test_and_set(&run_once))
1078                 return -1;
1079
1080         logid = strrchr(argv[0], '/');
1081         logid = strdup(logid ? logid + 1: argv[0]);
1082
1083         thread_id = pthread_self();
1084
1085         if (rte_eal_log_early_init() < 0)
1086                 rte_panic("Cannot init early logs\n");
1087
1088         if (rte_eal_cpu_init() < 0)
1089                 rte_panic("Cannot detect lcores\n");
1090
1091         fctret = eal_parse_args(argc, argv);
1092         if (fctret < 0)
1093                 exit(1);
1094
1095         /* set log level as early as possible */
1096         rte_set_log_level(internal_config.log_level);
1097
1098         if (internal_config.no_hugetlbfs == 0 &&
1099                         internal_config.process_type != RTE_PROC_SECONDARY &&
1100                         internal_config.xen_dom0_support == 0 &&
1101                         eal_hugepage_info_init() < 0)
1102                 rte_panic("Cannot get hugepage information\n");
1103
1104         if (internal_config.memory == 0 && internal_config.force_sockets == 0) {
1105                 if (internal_config.no_hugetlbfs)
1106                         internal_config.memory = MEMSIZE_IF_NO_HUGE_PAGE;
1107                 else
1108                         internal_config.memory = eal_get_hugepage_mem_size();
1109         }
1110
1111         if (internal_config.vmware_tsc_map == 1) {
1112 #ifdef RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT
1113                 rte_cycles_vmware_tsc_map = 1;
1114                 RTE_LOG (DEBUG, EAL, "Using VMWARE TSC MAP, "
1115                                 "you must have monitor_control.pseudo_perfctr = TRUE\n");
1116 #else
1117                 RTE_LOG (WARNING, EAL, "Ignoring --vmware-tsc-map because "
1118                                 "RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT is not set\n");
1119 #endif
1120         }
1121
1122         rte_srand(rte_rdtsc());
1123
1124         rte_config_init();
1125
1126         if (rte_eal_iopl_init() == 0)
1127                 rte_config.flags |= EAL_FLG_HIGH_IOPL;
1128
1129         if (rte_eal_pci_init() < 0)
1130                 rte_panic("Cannot init PCI\n");
1131
1132 #ifdef RTE_LIBRTE_IVSHMEM
1133         if (rte_eal_ivshmem_init() < 0)
1134                 rte_panic("Cannot init IVSHMEM\n");
1135 #endif
1136
1137         if (rte_eal_memory_init() < 0)
1138                 rte_panic("Cannot init memory\n");
1139
1140         /* the directories are locked during eal_hugepage_info_init */
1141         eal_hugedirs_unlock();
1142
1143         if (rte_eal_memzone_init() < 0)
1144                 rte_panic("Cannot init memzone\n");
1145
1146         if (rte_eal_tailqs_init() < 0)
1147                 rte_panic("Cannot init tail queues for objects\n");
1148
1149 #ifdef RTE_LIBRTE_IVSHMEM
1150         if (rte_eal_ivshmem_obj_init() < 0)
1151                 rte_panic("Cannot init IVSHMEM objects\n");
1152 #endif
1153
1154         if (rte_eal_log_init(logid, internal_config.syslog_facility) < 0)
1155                 rte_panic("Cannot init logs\n");
1156
1157         if (rte_eal_alarm_init() < 0)
1158                 rte_panic("Cannot init interrupt-handling thread\n");
1159
1160         if (rte_eal_intr_init() < 0)
1161                 rte_panic("Cannot init interrupt-handling thread\n");
1162
1163         if (rte_eal_timer_init() < 0)
1164                 rte_panic("Cannot init HPET or TSC timers\n");
1165
1166         eal_check_mem_on_local_socket();
1167
1168         rte_eal_mcfg_complete();
1169
1170         TAILQ_FOREACH(solib, &solib_list, next) {
1171                 RTE_LOG(INFO, EAL, "open shared lib %s\n", solib->name);
1172                 solib->lib_handle = dlopen(solib->name, RTLD_NOW);
1173                 if (solib->lib_handle == NULL)
1174                         RTE_LOG(WARNING, EAL, "%s\n", dlerror());
1175         }
1176
1177         eal_thread_init_master(rte_config.master_lcore);
1178
1179         RTE_LOG(DEBUG, EAL, "Master core %u is ready (tid=%x)\n",
1180                 rte_config.master_lcore, (int)thread_id);
1181
1182         if (rte_eal_dev_init(PMD_INIT_PRE_PCI_PROBE) < 0)
1183                 rte_panic("Cannot init pmd devices\n");
1184
1185         RTE_LCORE_FOREACH_SLAVE(i) {
1186
1187                 /*
1188                  * create communication pipes between master thread
1189                  * and children
1190                  */
1191                 if (pipe(lcore_config[i].pipe_master2slave) < 0)
1192                         rte_panic("Cannot create pipe\n");
1193                 if (pipe(lcore_config[i].pipe_slave2master) < 0)
1194                         rte_panic("Cannot create pipe\n");
1195
1196                 lcore_config[i].state = WAIT;
1197
1198                 /* create a thread for each lcore */
1199                 ret = pthread_create(&lcore_config[i].thread_id, NULL,
1200                                      eal_thread_loop, NULL);
1201                 if (ret != 0)
1202                         rte_panic("Cannot create thread\n");
1203         }
1204
1205         /*
1206          * Launch a dummy function on all slave lcores, so that master lcore
1207          * knows they are all ready when this function returns.
1208          */
1209         rte_eal_mp_remote_launch(sync_func, NULL, SKIP_MASTER);
1210         rte_eal_mp_wait_lcore();
1211
1212         /* Probe & Initialize PCI devices */
1213         if (rte_eal_pci_probe())
1214                         rte_panic("Cannot probe PCI\n");
1215
1216         /* Initialize any outstanding devices */
1217         if (rte_eal_dev_init(PMD_INIT_POST_PCI_PROBE) < 0)
1218                 rte_panic("Cannot init pmd devices\n");
1219
1220         return fctret;
1221 }
1222
1223 /* get core role */
1224 enum rte_lcore_role_t
1225 rte_eal_lcore_role(unsigned lcore_id)
1226 {
1227         return (rte_config.lcore_role[lcore_id]);
1228 }
1229
1230 enum rte_proc_type_t
1231 rte_eal_process_type(void)
1232 {
1233         return (rte_config.process_type);
1234 }
1235
1236 int rte_eal_has_hugepages(void)
1237 {
1238         return ! internal_config.no_hugetlbfs;
1239 }