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_USE_DEVICE  "use-device"
  96 #define OPT_PCI_WHITELIST "pci-whitelist"
  97 #define OPT_PCI_BLACKLIST "pci-blacklist"
  98 #define OPT_VDEV        "vdev"
  99 #define OPT_SYSLOG      "syslog"
 100 #define OPT_LOG_LEVEL   "log-level"
 101 #define OPT_BASE_VIRTADDR   "base-virtaddr"
 102 #define OPT_XEN_DOM0    "xen-dom0"
 103 #define OPT_CREATE_UIO_DEV "create-uio-dev"
 104 #define OPT_VFIO_INTR    "vfio-intr"
 105
 106 #define MEMSIZE_IF_NO_HUGE_PAGE (64ULL * 1024ULL * 1024ULL)
 107
 108 #define SOCKET_MEM_STRLEN (RTE_MAX_NUMA_NODES * 10)
 109
 110 #define HIGHEST_RPL 3
 111
 112 #define BITS_PER_HEX 4
 113
 114 /* Allow the application to print its usage message too if set */
 115 static rte_usage_hook_t rte_application_usage_hook = NULL;
 116
 117 TAILQ_HEAD(shared_driver_list, shared_driver);
 118
 119 /* Definition for shared object drivers. */
 120 struct shared_driver {
 121         TAILQ_ENTRY(shared_driver) next;
 122
 123         char    name[PATH_MAX];
 124         void*   lib_handle;
 125 };
 126
 127 /* List of external loadable drivers */
 128 static struct shared_driver_list solib_list =
 129 TAILQ_HEAD_INITIALIZER(solib_list);
 130
 131 /* early configuration structure, when memory config is not mmapped */
 132 static struct rte_mem_config early_mem_config;
 133
 134 /* define fd variable here, because file needs to be kept open for the
 135  * duration of the program, as we hold a write lock on it in the primary proc */
 136 static int mem_cfg_fd = -1;
 137
 138 static struct flock wr_lock = {
 139                 .l_type = F_WRLCK,
 140                 .l_whence = SEEK_SET,
 141                 .l_start = offsetof(struct rte_mem_config, memseg),
 142                 .l_len = sizeof(early_mem_config.memseg),
 143 };
 144
 145 /* Address of global and public configuration */
 146 static struct rte_config rte_config = {
 147                 .mem_config = &early_mem_config,
 148 };
 149
 150 /* internal configuration (per-core) */
 151 struct lcore_config lcore_config[RTE_MAX_LCORE];
 152
 153 /* internal configuration */
 154 struct internal_config internal_config;
 155
 156 /* used by rte_rdtsc() */
 157 int rte_cycles_vmware_tsc_map;
 158
 159 /* Return a pointer to the configuration structure */
 160 struct rte_config *
 161 rte_eal_get_configuration(void)
 162 {
 163         return &rte_config;
 164 }
 165
 166 /* parse a sysfs (or other) file containing one integer value */
 167 int
 168 eal_parse_sysfs_value(const char *filename, unsigned long *val)
 169 {
 170         FILE *f;
 171         char buf[BUFSIZ];
 172         char *end = NULL;
 173
 174         if ((f = fopen(filename, "r")) == NULL) {
 175                 RTE_LOG(ERR, EAL, "%s(): cannot open sysfs value %s\n",
 176                         __func__, filename);
 177                 return -1;
 178         }
 179
 180         if (fgets(buf, sizeof(buf), f) == NULL) {
 181                 RTE_LOG(ERR, EAL, "%s(): cannot read sysfs value %s\n",
 182                         __func__, filename);
 183                 fclose(f);
 184                 return -1;
 185         }
 186         *val = strtoul(buf, &end, 0);
 187         if ((buf[0] == '\0') || (end == NULL) || (*end != '\n')) {
 188                 RTE_LOG(ERR, EAL, "%s(): cannot parse sysfs value %s\n",
 189                                 __func__, filename);
 190                 fclose(f);
 191                 return -1;
 192         }
 193         fclose(f);
 194         return 0;
 195 }
 196
 197
 198 /* create memory configuration in shared/mmap memory. Take out
 199  * a write lock on the memsegs, so we can auto-detect primary/secondary.
 200  * This means we never close the file while running (auto-close on exit).
 201  * We also don't lock the whole file, so that in future we can use read-locks
 202  * on other parts, e.g. memzones, to detect if there are running secondary
 203  * processes. */
 204 static void
 205 rte_eal_config_create(void)
 206 {
 207         void *rte_mem_cfg_addr;
 208         int retval;
 209
 210         const char *pathname = eal_runtime_config_path();
 211
 212         if (internal_config.no_shconf)
 213                 return;
 214
 215         /* map the config before hugepage address so that we don't waste a page */
 216         if (internal_config.base_virtaddr != 0)
 217                 rte_mem_cfg_addr = (void *)
 218                         RTE_ALIGN_FLOOR(internal_config.base_virtaddr -
 219                         sizeof(struct rte_mem_config), sysconf(_SC_PAGE_SIZE));
 220         else
 221                 rte_mem_cfg_addr = NULL;
 222
 223         if (mem_cfg_fd < 0){
 224                 mem_cfg_fd = open(pathname, O_RDWR | O_CREAT, 0660);
 225                 if (mem_cfg_fd < 0)
 226                         rte_panic("Cannot open '%s' for rte_mem_config\n", pathname);
 227         }
 228
 229         retval = ftruncate(mem_cfg_fd, sizeof(*rte_config.mem_config));
 230         if (retval < 0){
 231                 close(mem_cfg_fd);
 232                 rte_panic("Cannot resize '%s' for rte_mem_config\n", pathname);
 233         }
 234
 235         retval = fcntl(mem_cfg_fd, F_SETLK, &wr_lock);
 236         if (retval < 0){
 237                 close(mem_cfg_fd);
 238                 rte_exit(EXIT_FAILURE, "Cannot create lock on '%s'. Is another primary "
 239                                 "process running?\n", pathname);
 240         }
 241
 242         rte_mem_cfg_addr = mmap(rte_mem_cfg_addr, sizeof(*rte_config.mem_config),
 243                                 PROT_READ | PROT_WRITE, MAP_SHARED, mem_cfg_fd, 0);
 244
 245         if (rte_mem_cfg_addr == MAP_FAILED){
 246                 rte_panic("Cannot mmap memory for rte_config\n");
 247         }
 248         memcpy(rte_mem_cfg_addr, &early_mem_config, sizeof(early_mem_config));
 249         rte_config.mem_config = (struct rte_mem_config *) rte_mem_cfg_addr;
 250
 251         /* store address of the config in the config itself so that secondary
 252          * processes could later map the config into this exact location */
 253         rte_config.mem_config->mem_cfg_addr = (uintptr_t) rte_mem_cfg_addr;
 254
 255 }
 256
 257 /* attach to an existing shared memory config */
 258 static void
 259 rte_eal_config_attach(void)
 260 {
 261         struct rte_mem_config *mem_config;
 262
 263         const char *pathname = eal_runtime_config_path();
 264
 265         if (internal_config.no_shconf)
 266                 return;
 267
 268         if (mem_cfg_fd < 0){
 269                 mem_cfg_fd = open(pathname, O_RDWR);
 270                 if (mem_cfg_fd < 0)
 271                         rte_panic("Cannot open '%s' for rte_mem_config\n", pathname);
 272         }
 273
 274         /* map it as read-only first */
 275         mem_config = (struct rte_mem_config *) mmap(NULL, sizeof(*mem_config),
 276                         PROT_READ, MAP_SHARED, mem_cfg_fd, 0);
 277         if (mem_config == MAP_FAILED)
 278                 rte_panic("Cannot mmap memory for rte_config\n");
 279
 280         rte_config.mem_config = mem_config;
 281 }
 282
 283 /* reattach the shared config at exact memory location primary process has it */
 284 static void
 285 rte_eal_config_reattach(void)
 286 {
 287         struct rte_mem_config *mem_config;
 288         void *rte_mem_cfg_addr;
 289
 290         if (internal_config.no_shconf)
 291                 return;
 292
 293         /* save the address primary process has mapped shared config to */
 294         rte_mem_cfg_addr = (void *) (uintptr_t) rte_config.mem_config->mem_cfg_addr;
 295
 296         /* unmap original config */
 297         munmap(rte_config.mem_config, sizeof(struct rte_mem_config));
 298
 299         /* remap the config at proper address */
 300         mem_config = (struct rte_mem_config *) mmap(rte_mem_cfg_addr,
 301                         sizeof(*mem_config), PROT_READ | PROT_WRITE, MAP_SHARED,
 302                         mem_cfg_fd, 0);
 303         close(mem_cfg_fd);
 304         if (mem_config == MAP_FAILED || mem_config != rte_mem_cfg_addr)
 305                 rte_panic("Cannot mmap memory for rte_config\n");
 306
 307         rte_config.mem_config = mem_config;
 308 }
 309
 310 /* Detect if we are a primary or a secondary process */
 311 static enum rte_proc_type_t
 312 eal_proc_type_detect(void)
 313 {
 314         enum rte_proc_type_t ptype = RTE_PROC_PRIMARY;
 315         const char *pathname = eal_runtime_config_path();
 316
 317         /* if we can open the file but not get a write-lock we are a secondary
 318          * process. NOTE: if we get a file handle back, we keep that open
 319          * and don't close it to prevent a race condition between multiple opens */
 320         if (((mem_cfg_fd = open(pathname, O_RDWR)) >= 0) &&
 321                         (fcntl(mem_cfg_fd, F_SETLK, &wr_lock) < 0))
 322                 ptype = RTE_PROC_SECONDARY;
 323
 324         RTE_LOG(INFO, EAL, "Auto-detected process type: %s\n",
 325                         ptype == RTE_PROC_PRIMARY ? "PRIMARY" : "SECONDARY");
 326
 327         return ptype;
 328 }
 329
 330 /* Sets up rte_config structure with the pointer to shared memory config.*/
 331 static void
 332 rte_config_init(void)
 333 {
 334         rte_config.process_type = (internal_config.process_type == RTE_PROC_AUTO) ?
 335                         eal_proc_type_detect() : /* for auto, detect the type */
 336                         internal_config.process_type; /* otherwise use what's already set */
 337
 338         switch (rte_config.process_type){
 339         case RTE_PROC_PRIMARY:
 340                 rte_eal_config_create();
 341                 break;
 342         case RTE_PROC_SECONDARY:
 343                 rte_eal_config_attach();
 344                 rte_eal_mcfg_wait_complete(rte_config.mem_config);
 345                 rte_eal_config_reattach();
 346                 break;
 347         case RTE_PROC_AUTO:
 348         case RTE_PROC_INVALID:
 349                 rte_panic("Invalid process type\n");
 350         }
 351 }
 352
 353 /* Unlocks hugepage directories that were locked by eal_hugepage_info_init */
 354 static void
 355 eal_hugedirs_unlock(void)
 356 {
 357         int i;
 358
 359         for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
 360         {
 361                 /* skip uninitialized */
 362                 if (internal_config.hugepage_info[i].lock_descriptor < 0)
 363                         continue;
 364                 /* unlock hugepage file */
 365                 flock(internal_config.hugepage_info[i].lock_descriptor, LOCK_UN);
 366                 close(internal_config.hugepage_info[i].lock_descriptor);
 367                 /* reset the field */
 368                 internal_config.hugepage_info[i].lock_descriptor = -1;
 369         }
 370 }
 371
 372 /* display usage */
 373 static void
 374 eal_usage(const char *prgname)
 375 {
 376         printf("\nUsage: %s -c COREMASK -n NUM [-m NB] [-r NUM] [-b <domain:bus:devid.func>]"
 377                "[--proc-type primary|secondary|auto] \n\n"
 378                "EAL options:\n"
 379                "  -c COREMASK  : A hexadecimal bitmask of cores to run on\n"
 380                "  -n NUM       : Number of memory channels\n"
 381                    "  -v           : Display version information on startup\n"
 382                "  -d LIB.so    : add driver (can be used multiple times)\n"
 383                "  -m MB        : memory to allocate (see also --"OPT_SOCKET_MEM")\n"
 384                "  -r NUM       : force number of memory ranks (don't detect)\n"
 385                "  --"OPT_XEN_DOM0" : support application running on Xen Domain0 "
 386                            "without hugetlbfs\n"
 387                "  --"OPT_SYSLOG"     : set syslog facility\n"
 388                "  --"OPT_LOG_LEVEL"  : set default log level\n"
 389                "  --"OPT_SOCKET_MEM" : memory to allocate on specific\n"
 390                    "                 sockets (use comma separated values)\n"
 391                "  --"OPT_HUGE_DIR"   : directory where hugetlbfs is mounted\n"
 392                "  --"OPT_PROC_TYPE"  : type of this process\n"
 393                "  --"OPT_FILE_PREFIX": prefix for hugepage filenames\n"
 394                "  --"OPT_PCI_BLACKLIST", -b: add a PCI device in black list.\n"
 395                "               Prevent EAL from using this PCI device. The argument\n"
 396                "               format is <domain:bus:devid.func>.\n"
 397                "  --"OPT_PCI_WHITELIST", -w: add a PCI device in white list.\n"
 398                "               Only use the specified PCI devices. The argument format\n"
 399                "               is <[domain:]bus:devid.func>. This option can be present\n"
 400                "               several times (once per device).\n"
 401                "               [NOTE: PCI whitelist cannot be used with -b option]\n"
 402                "  --"OPT_VDEV": add a virtual device.\n"
 403                "               The argument format is <driver><id>[,key=val,...]\n"
 404                "               (ex: --vdev=eth_pcap0,iface=eth2).\n"
 405                "  --"OPT_VMWARE_TSC_MAP": use VMware TSC map instead of native RDTSC\n"
 406                "  --"OPT_BASE_VIRTADDR": specify base virtual address\n"
 407                "  --"OPT_VFIO_INTR": specify desired interrupt mode for VFIO "
 408                            "(legacy|msi|msix)\n"
 409                "  --"OPT_CREATE_UIO_DEV": create /dev/uioX (usually done by hotplug)\n"
 410                "\nEAL options for DEBUG use only:\n"
 411                "  --"OPT_NO_HUGE"  : use malloc instead of hugetlbfs\n"
 412                "  --"OPT_NO_PCI"   : disable pci\n"
 413                "  --"OPT_NO_HPET"  : disable hpet\n"
 414                "  --"OPT_NO_SHCONF": no shared config (mmap'd files)\n"
 415                "\n",
 416                prgname);
 417         /* Allow the application to print its usage message too if hook is set */
 418         if ( rte_application_usage_hook ) {
 419                 printf("===== Application Usage =====\n\n");
 420                 rte_application_usage_hook(prgname);
 421         }
 422 }
 423
 424 /* Set a per-application usage message */
 425 rte_usage_hook_t
 426 rte_set_application_usage_hook( rte_usage_hook_t usage_func )
 427 {
 428         rte_usage_hook_t        old_func;
 429
 430         /* Will be NULL on the first call to denote the last usage routine. */
 431         old_func                                        = rte_application_usage_hook;
 432         rte_application_usage_hook      = usage_func;
 433
 434         return old_func;
 435 }
 436
 437 /*
 438  * Parse the coremask given as argument (hexadecimal string) and fill
 439  * the global configuration (core role and core count) with the parsed
 440  * value.
 441  */
 442 static int xdigit2val(unsigned char c)
 443 {
 444         int val;
 445         if(isdigit(c))
 446                 val = c - '0';
 447         else if(isupper(c))
 448                 val = c - 'A' + 10;
 449         else
 450                 val = c - 'a' + 10;
 451         return val;
 452 }
 453 static int
 454 eal_parse_coremask(const char *coremask)
 455 {
 456         struct rte_config *cfg = rte_eal_get_configuration();
 457         int i, j, idx = 0 ;
 458         unsigned count = 0;
 459         char c;
 460         int val;
 461
 462         if (coremask == NULL)
 463                 return -1;
 464         /* Remove all blank characters ahead and after .
 465          * Remove 0x/0X if exists.
 466          */
 467         while (isblank(*coremask))
 468                 coremask++;
 469         if (coremask[0] == '0' && ((coremask[1] == 'x')
 470                 ||  (coremask[1] == 'X')) )
 471                 coremask += 2;
 472         i = strnlen(coremask, PATH_MAX);
 473         while ((i > 0) && isblank(coremask[i - 1]))
 474                 i--;
 475         if (i == 0)
 476                 return -1;
 477
 478         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 479                 c = coremask[i];
 480                 if (isxdigit(c) == 0) {
 481                         /* invalid characters */
 482                         return (-1);
 483                 }
 484                 val = xdigit2val(c);
 485                 for(j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++) {
 486                         if((1 << j) & val) {
 487                                 if (!lcore_config[idx].detected) {
 488                                         RTE_LOG(ERR, EAL, "lcore %u "
 489                                                 "unavailable\n", idx);
 490                                         return -1;
 491                                 }
 492                                 cfg->lcore_role[idx] = ROLE_RTE;
 493                                 if(count == 0)
 494                                         cfg->master_lcore = idx;
 495                                 count++;
 496                         } else  {
 497                                 cfg->lcore_role[idx] = ROLE_OFF;
 498                         }
 499                 }
 500         }
 501         for(; i >= 0; i--)
 502                 if(coremask[i] != '0')
 503                         return -1;
 504         for(; idx < RTE_MAX_LCORE; idx++)
 505                 cfg->lcore_role[idx] = ROLE_OFF;
 506         if(count == 0)
 507                 return -1;
 508         /* Update the count of enabled logical cores of the EAL configuration */
 509         cfg->lcore_count = count;
 510         return 0;
 511 }
 512
 513 static int
 514 eal_parse_syslog(const char *facility)
 515 {
 516         int i;
 517         static struct {
 518                 const char *name;
 519                 int value;
 520         } map[] = {
 521                 { "auth", LOG_AUTH },
 522                 { "cron", LOG_CRON },
 523                 { "daemon", LOG_DAEMON },
 524                 { "ftp", LOG_FTP },
 525                 { "kern", LOG_KERN },
 526                 { "lpr", LOG_LPR },
 527                 { "mail", LOG_MAIL },
 528                 { "news", LOG_NEWS },
 529                 { "syslog", LOG_SYSLOG },
 530                 { "user", LOG_USER },
 531                 { "uucp", LOG_UUCP },
 532                 { "local0", LOG_LOCAL0 },
 533                 { "local1", LOG_LOCAL1 },
 534                 { "local2", LOG_LOCAL2 },
 535                 { "local3", LOG_LOCAL3 },
 536                 { "local4", LOG_LOCAL4 },
 537                 { "local5", LOG_LOCAL5 },
 538                 { "local6", LOG_LOCAL6 },
 539                 { "local7", LOG_LOCAL7 },
 540                 { NULL, 0 }
 541         };
 542
 543         for (i = 0; map[i].name; i++) {
 544                 if (!strcmp(facility, map[i].name)) {
 545                         internal_config.syslog_facility = map[i].value;
 546                         return 0;
 547                 }
 548         }
 549         return -1;
 550 }
 551
 552 static int
 553 eal_parse_log_level(const char *level, uint32_t *log_level)
 554 {
 555         char *end;
 556         unsigned long tmp;
 557
 558         errno = 0;
 559         tmp = strtoul(level, &end, 0);
 560
 561         /* check for errors */
 562         if ((errno != 0) || (level[0] == '\0') ||
 563             end == NULL || (*end != '\0'))
 564                 return -1;
 565
 566         /* log_level is a uint32_t */
 567         if (tmp >= UINT32_MAX)
 568                 return -1;
 569
 570         *log_level = tmp;
 571         return 0;
 572 }
 573
 574 static int
 575 eal_parse_socket_mem(char *socket_mem)
 576 {
 577         char * arg[RTE_MAX_NUMA_NODES];
 578         char *end;
 579         int arg_num, i, len;
 580         uint64_t total_mem = 0;
 581
 582         len = strnlen(socket_mem, SOCKET_MEM_STRLEN);
 583         if (len == SOCKET_MEM_STRLEN) {
 584                 RTE_LOG(ERR, EAL, "--socket-mem is too long\n");
 585                 return -1;
 586         }
 587
 588         /* all other error cases will be caught later */
 589         if (!isdigit(socket_mem[len-1]))
 590                 return -1;
 591
 592         /* split the optarg into separate socket values */
 593         arg_num = rte_strsplit(socket_mem, len,
 594                         arg, RTE_MAX_NUMA_NODES, ',');
 595
 596         /* if split failed, or 0 arguments */
 597         if (arg_num <= 0)
 598                 return -1;
 599
 600         internal_config.force_sockets = 1;
 601
 602         /* parse each defined socket option */
 603         errno = 0;
 604         for (i = 0; i < arg_num; i++) {
 605                 end = NULL;
 606                 internal_config.socket_mem[i] = strtoull(arg[i], &end, 10);
 607
 608                 /* check for invalid input */
 609                 if ((errno != 0)  ||
 610                                 (arg[i][0] == '\0') || (end == NULL) || (*end != '\0'))
 611                         return -1;
 612                 internal_config.socket_mem[i] *= 1024ULL;
 613                 internal_config.socket_mem[i] *= 1024ULL;
 614                 total_mem += internal_config.socket_mem[i];
 615         }
 616
 617         /* check if we have a positive amount of total memory */
 618         if (total_mem == 0)
 619                 return -1;
 620
 621         return 0;
 622 }
 623
 624 static int
 625 eal_parse_base_virtaddr(const char *arg)
 626 {
 627         char *end;
 628         uint64_t addr;
 629
 630         errno = 0;
 631         addr = strtoull(arg, &end, 16);
 632
 633         /* check for errors */
 634         if ((errno != 0) || (arg[0] == '\0') || end == NULL || (*end != '\0'))
 635                 return -1;
 636
 637         /* make sure we don't exceed 32-bit boundary on 32-bit target */
 638 #ifndef RTE_ARCH_X86_64
 639         if (addr >= UINTPTR_MAX)
 640                 return -1;
 641 #endif
 642
 643         /* align the addr on 2M boundary */
 644         internal_config.base_virtaddr = RTE_PTR_ALIGN_CEIL((uintptr_t)addr,
 645                                                            RTE_PGSIZE_2M);
 646
 647         return 0;
 648 }
 649
 650 static int
 651 eal_parse_vfio_intr(const char *mode)
 652 {
 653         unsigned i;
 654         static struct {
 655                 const char *name;
 656                 enum rte_intr_mode value;
 657         } map[] = {
 658                 { "legacy", RTE_INTR_MODE_LEGACY },
 659                 { "msi", RTE_INTR_MODE_MSI },
 660                 { "msix", RTE_INTR_MODE_MSIX },
 661         };
 662
 663         for (i = 0; i < RTE_DIM(map); i++) {
 664                 if (!strcmp(mode, map[i].name)) {
 665                         internal_config.vfio_intr_mode = map[i].value;
 666                         return 0;
 667                 }
 668         }
 669         return -1;
 670 }
 671
 672 static inline size_t
 673 eal_get_hugepage_mem_size(void)
 674 {
 675         uint64_t size = 0;
 676         unsigned i, j;
 677
 678         for (i = 0; i < internal_config.num_hugepage_sizes; i++) {
 679                 struct hugepage_info *hpi = &internal_config.hugepage_info[i];
 680                 if (hpi->hugedir != NULL) {
 681                         for (j = 0; j < RTE_MAX_NUMA_NODES; j++) {
 682                                 size += hpi->hugepage_sz * hpi->num_pages[j];
 683                         }
 684                 }
 685         }
 686
 687         return (size < SIZE_MAX) ? (size_t)(size) : SIZE_MAX;
 688 }
 689
 690 static enum rte_proc_type_t
 691 eal_parse_proc_type(const char *arg)
 692 {
 693         if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
 694                 return RTE_PROC_PRIMARY;
 695         if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
 696                 return RTE_PROC_SECONDARY;
 697         if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
 698                 return RTE_PROC_AUTO;
 699
 700         return RTE_PROC_INVALID;
 701 }
 702
 703 /* Parse the argument given in the command line of the application */
 704 static int
 705 eal_parse_args(int argc, char **argv)
 706 {
 707         int opt, ret, i;
 708         char **argvopt;
 709         int option_index;
 710         int coremask_ok = 0;
 711         char *prgname = argv[0];
 712         static struct option lgopts[] = {
 713                 {OPT_NO_HUGE, 0, 0, 0},
 714                 {OPT_NO_PCI, 0, 0, 0},
 715                 {OPT_NO_HPET, 0, 0, 0},
 716                 {OPT_VMWARE_TSC_MAP, 0, 0, 0},
 717                 {OPT_HUGE_DIR, 1, 0, 0},
 718                 {OPT_NO_SHCONF, 0, 0, 0},
 719                 {OPT_PROC_TYPE, 1, 0, 0},
 720                 {OPT_FILE_PREFIX, 1, 0, 0},
 721                 {OPT_SOCKET_MEM, 1, 0, 0},
 722                 {OPT_PCI_WHITELIST, 1, 0, 0},
 723                 {OPT_PCI_BLACKLIST, 1, 0, 0},
 724                 {OPT_VDEV, 1, 0, 0},
 725                 {OPT_SYSLOG, 1, NULL, 0},
 726                 {OPT_LOG_LEVEL, 1, NULL, 0},
 727                 {OPT_VFIO_INTR, 1, NULL, 0},
 728                 {OPT_BASE_VIRTADDR, 1, 0, 0},
 729                 {OPT_XEN_DOM0, 0, 0, 0},
 730                 {OPT_CREATE_UIO_DEV, 1, NULL, 0},
 731                 {0, 0, 0, 0}
 732         };
 733         struct shared_driver *solib;
 734
 735         argvopt = argv;
 736
 737         internal_config.memory = 0;
 738         internal_config.force_nrank = 0;
 739         internal_config.force_nchannel = 0;
 740         internal_config.hugefile_prefix = HUGEFILE_PREFIX_DEFAULT;
 741         internal_config.hugepage_dir = NULL;
 742         internal_config.force_sockets = 0;
 743         internal_config.syslog_facility = LOG_DAEMON;
 744         /* default value from build option */
 745         internal_config.log_level = RTE_LOG_LEVEL;
 746         internal_config.xen_dom0_support = 0;
 747         /* if set to NONE, interrupt mode is determined automatically */
 748         internal_config.vfio_intr_mode = RTE_INTR_MODE_NONE;
 749 #ifdef RTE_LIBEAL_USE_HPET
 750         internal_config.no_hpet = 0;
 751 #else
 752         internal_config.no_hpet = 1;
 753 #endif
 754         /* zero out the NUMA config */
 755         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 756                 internal_config.socket_mem[i] = 0;
 757
 758         /* zero out hugedir descriptors */
 759         for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
 760                 internal_config.hugepage_info[i].lock_descriptor = -1;
 761
 762         internal_config.vmware_tsc_map = 0;
 763         internal_config.base_virtaddr = 0;
 764
 765         while ((opt = getopt_long(argc, argvopt, "b:w:c:d:m:n:r:v",
 766                                   lgopts, &option_index)) != EOF) {
 767
 768                 switch (opt) {
 769                 /* blacklist */
 770                 case 'b':
 771                         if (rte_eal_devargs_add(RTE_DEVTYPE_BLACKLISTED_PCI,
 772                                         optarg) < 0) {
 773                                 eal_usage(prgname);
 774                                 return (-1);
 775                         }
 776                         break;
 777                 /* whitelist */
 778                 case 'w':
 779                         if (rte_eal_devargs_add(RTE_DEVTYPE_WHITELISTED_PCI,
 780                                         optarg) < 0) {
 781                                 eal_usage(prgname);
 782                                 return -1;
 783                         }
 784                         break;
 785                 /* coremask */
 786                 case 'c':
 787                         if (eal_parse_coremask(optarg) < 0) {
 788                                 RTE_LOG(ERR, EAL, "invalid coremask\n");
 789                                 eal_usage(prgname);
 790                                 return -1;
 791                         }
 792                         coremask_ok = 1;
 793                         break;
 794                 /* force loading of external driver */
 795                 case 'd':
 796                         solib = malloc(sizeof(*solib));
 797                         if (solib == NULL) {
 798                                 RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
 799                                 return -1;
 800                         }
 801                         memset(solib, 0, sizeof(*solib));
 802                         strncpy(solib->name, optarg, PATH_MAX-1);
 803                         solib->name[PATH_MAX-1] = 0;
 804                         TAILQ_INSERT_TAIL(&solib_list, solib, next);
 805                         break;
 806                 /* size of memory */
 807                 case 'm':
 808                         internal_config.memory = atoi(optarg);
 809                         internal_config.memory *= 1024ULL;
 810                         internal_config.memory *= 1024ULL;
 811                         break;
 812                 /* force number of channels */
 813                 case 'n':
 814                         internal_config.force_nchannel = atoi(optarg);
 815                         if (internal_config.force_nchannel == 0 ||
 816                             internal_config.force_nchannel > 4) {
 817                                 RTE_LOG(ERR, EAL, "invalid channel number\n");
 818                                 eal_usage(prgname);
 819                                 return -1;
 820                         }
 821                         break;
 822                 /* force number of ranks */
 823                 case 'r':
 824                         internal_config.force_nrank = atoi(optarg);
 825                         if (internal_config.force_nrank == 0 ||
 826                             internal_config.force_nrank > 16) {
 827                                 RTE_LOG(ERR, EAL, "invalid rank number\n");
 828                                 eal_usage(prgname);
 829                                 return -1;
 830                         }
 831                         break;
 832                 case 'v':
 833                         /* since message is explicitly requested by user, we
 834                          * write message at highest log level so it can always be seen
 835                          * even if info or warning messages are disabled */
 836                         RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
 837                         break;
 838
 839                 /* long options */
 840                 case 0:
 841                         if (!strcmp(lgopts[option_index].name, OPT_NO_HUGE)) {
 842                                 internal_config.no_hugetlbfs = 1;
 843                         }
 844                         if (!strcmp(lgopts[option_index].name, OPT_XEN_DOM0)) {
 845                 #ifdef RTE_LIBRTE_XEN_DOM0
 846                                 internal_config.xen_dom0_support = 1;
 847                 #else
 848                                 RTE_LOG(ERR, EAL, "Can't support DPDK app "
 849                                         "running on Dom0, please configure"
 850                                         " RTE_LIBRTE_XEN_DOM0=y\n");
 851                                 return -1;
 852                 #endif
 853                         }
 854                         else if (!strcmp(lgopts[option_index].name, OPT_NO_PCI)) {
 855                                 internal_config.no_pci = 1;
 856                         }
 857                         else if (!strcmp(lgopts[option_index].name, OPT_NO_HPET)) {
 858                                 internal_config.no_hpet = 1;
 859                         }
 860                         else if (!strcmp(lgopts[option_index].name, OPT_VMWARE_TSC_MAP)) {
 861                                 internal_config.vmware_tsc_map = 1;
 862                         }
 863                         else if (!strcmp(lgopts[option_index].name, OPT_NO_SHCONF)) {
 864                                 internal_config.no_shconf = 1;
 865                         }
 866                         else if (!strcmp(lgopts[option_index].name, OPT_HUGE_DIR)) {
 867                                 internal_config.hugepage_dir = optarg;
 868                         }
 869                         else if (!strcmp(lgopts[option_index].name, OPT_PROC_TYPE)) {
 870                                 internal_config.process_type = eal_parse_proc_type(optarg);
 871                         }
 872                         else if (!strcmp(lgopts[option_index].name, OPT_FILE_PREFIX)) {
 873                                 internal_config.hugefile_prefix = optarg;
 874                         }
 875                         else if (!strcmp(lgopts[option_index].name, OPT_SOCKET_MEM)) {
 876                                 if (eal_parse_socket_mem(optarg) < 0) {
 877                                         RTE_LOG(ERR, EAL, "invalid parameters for --"
 878                                                         OPT_SOCKET_MEM "\n");
 879                                         eal_usage(prgname);
 880                                         return -1;
 881                                 }
 882                         }
 883                         else if (!strcmp(lgopts[option_index].name, OPT_USE_DEVICE)) {
 884                                 printf("The --use-device option is deprecated, please use\n"
 885                                         "--whitelist or --vdev instead.\n");
 886                                 eal_usage(prgname);
 887                                 return -1;
 888                         }
 889                         else if (!strcmp(lgopts[option_index].name, OPT_PCI_BLACKLIST)) {
 890                                 if (rte_eal_devargs_add(RTE_DEVTYPE_BLACKLISTED_PCI,
 891                                                 optarg) < 0) {
 892                                         eal_usage(prgname);
 893                                         return -1;
 894                                 }
 895                         }
 896                         else if (!strcmp(lgopts[option_index].name, OPT_PCI_WHITELIST)) {
 897                                 if (rte_eal_devargs_add(RTE_DEVTYPE_WHITELISTED_PCI,
 898                                                 optarg) < 0) {
 899                                         eal_usage(prgname);
 900                                         return -1;
 901                                 }
 902                         }
 903                         else if (!strcmp(lgopts[option_index].name, OPT_VDEV)) {
 904                                 if (rte_eal_devargs_add(RTE_DEVTYPE_VIRTUAL,
 905                                                 optarg) < 0) {
 906                                         eal_usage(prgname);
 907                                         return -1;
 908                                 }
 909                         }
 910                         else if (!strcmp(lgopts[option_index].name, OPT_SYSLOG)) {
 911                                 if (eal_parse_syslog(optarg) < 0) {
 912                                         RTE_LOG(ERR, EAL, "invalid parameters for --"
 913                                                         OPT_SYSLOG "\n");
 914                                         eal_usage(prgname);
 915                                         return -1;
 916                                 }
 917                         } else if (!strcmp(lgopts[option_index].name,
 918                                          OPT_LOG_LEVEL)) {
 919                                 uint32_t log;
 920
 921                                 if (eal_parse_log_level(optarg, &log) < 0) {
 922                                         RTE_LOG(ERR, EAL,
 923                                                 "invalid parameters for --"
 924                                                 OPT_LOG_LEVEL "\n");
 925                                         eal_usage(prgname);
 926                                         return -1;
 927                                 }
 928                                 internal_config.log_level = log;
 929                         }
 930                         else if (!strcmp(lgopts[option_index].name, OPT_BASE_VIRTADDR)) {
 931                                 if (eal_parse_base_virtaddr(optarg) < 0) {
 932                                         RTE_LOG(ERR, EAL, "invalid parameter for --"
 933                                                         OPT_BASE_VIRTADDR "\n");
 934                                         eal_usage(prgname);
 935                                         return -1;
 936                                 }
 937                         }
 938                         else if (!strcmp(lgopts[option_index].name, OPT_VFIO_INTR)) {
 939                                 if (eal_parse_vfio_intr(optarg) < 0) {
 940                                         RTE_LOG(ERR, EAL, "invalid parameters for --"
 941                                                         OPT_VFIO_INTR "\n");
 942                                         eal_usage(prgname);
 943                                         return -1;
 944                                 }
 945                         }
 946                         else if (!strcmp(lgopts[option_index].name, OPT_CREATE_UIO_DEV)) {
 947                                 internal_config.create_uio_dev = 1;
 948                         }
 949                         break;
 950
 951                 default:
 952                         eal_usage(prgname);
 953                         return -1;
 954                 }
 955         }
 956
 957         /* sanity checks */
 958         if (!coremask_ok) {
 959                 RTE_LOG(ERR, EAL, "coremask not specified\n");
 960                 eal_usage(prgname);
 961                 return -1;
 962         }
 963         if (internal_config.process_type == RTE_PROC_AUTO){
 964                 internal_config.process_type = eal_proc_type_detect();
 965         }
 966         if (internal_config.process_type == RTE_PROC_INVALID){
 967                 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
 968                 eal_usage(prgname);
 969                 return -1;
 970         }
 971         if (internal_config.process_type == RTE_PROC_PRIMARY &&
 972                         internal_config.force_nchannel == 0) {
 973                 RTE_LOG(ERR, EAL, "Number of memory channels (-n) not specified\n");
 974                 eal_usage(prgname);
 975                 return -1;
 976         }
 977         if (index(internal_config.hugefile_prefix,'%') != NULL){
 978                 RTE_LOG(ERR, EAL, "Invalid char, '%%', in '"OPT_FILE_PREFIX"' option\n");
 979                 eal_usage(prgname);
 980                 return -1;
 981         }
 982         if (internal_config.memory > 0 && internal_config.force_sockets == 1) {
 983                 RTE_LOG(ERR, EAL, "Options -m and --socket-mem cannot be specified "
 984                                 "at the same time\n");
 985                 eal_usage(prgname);
 986                 return -1;
 987         }
 988         /* --no-huge doesn't make sense with either -m or --socket-mem */
 989         if (internal_config.no_hugetlbfs &&
 990                         (internal_config.memory > 0 ||
 991                                         internal_config.force_sockets == 1)) {
 992                 RTE_LOG(ERR, EAL, "Options -m or --socket-mem cannot be specified "
 993                                 "together with --no-huge!\n");
 994                 eal_usage(prgname);
 995                 return -1;
 996         }
 997         /* --xen-dom0 doesn't make sense with --socket-mem */
 998         if (internal_config.xen_dom0_support && internal_config.force_sockets == 1) {
 999                 RTE_LOG(ERR, EAL, "Options --socket-mem cannot be specified "
1000                                         "together with --xen_dom0!\n");
1001                 eal_usage(prgname);
1002                 return -1;
1003         }
1004
1005         if (rte_eal_devargs_type_count(RTE_DEVTYPE_WHITELISTED_PCI) != 0 &&
1006                 rte_eal_devargs_type_count(RTE_DEVTYPE_BLACKLISTED_PCI) != 0) {
1007                 RTE_LOG(ERR, EAL, "Error: blacklist [-b] and whitelist "
1008                         "[-w] options cannot be used at the same time\n");
1009                 eal_usage(prgname);
1010                 return -1;
1011         }
1012
1013         if (optind >= 0)
1014                 argv[optind-1] = prgname;
1015
1016         /* if no memory amounts were requested, this will result in 0 and
1017          * will be overriden later, right after eal_hugepage_info_init() */
1018         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
1019                 internal_config.memory += internal_config.socket_mem[i];
1020
1021         ret = optind-1;
1022         optind = 0; /* reset getopt lib */
1023         return ret;
1024 }
1025
1026 static void
1027 eal_check_mem_on_local_socket(void)
1028 {
1029         const struct rte_memseg *ms;
1030         int i, socket_id;
1031
1032         socket_id = rte_lcore_to_socket_id(rte_config.master_lcore);
1033
1034         ms = rte_eal_get_physmem_layout();
1035
1036         for (i = 0; i < RTE_MAX_MEMSEG; i++)
1037                 if (ms[i].socket_id == socket_id &&
1038                                 ms[i].len > 0)
1039                         return;
1040
1041         RTE_LOG(WARNING, EAL, "WARNING: Master core has no "
1042                         "memory on local socket!\n");
1043 }
1044
1045 static int
1046 sync_func(__attribute__((unused)) void *arg)
1047 {
1048         return 0;
1049 }
1050
1051 inline static void
1052 rte_eal_mcfg_complete(void)
1053 {
1054         /* ALL shared mem_config related INIT DONE */
1055         if (rte_config.process_type == RTE_PROC_PRIMARY)
1056                 rte_config.mem_config->magic = RTE_MAGIC;
1057 }
1058
1059 /*
1060  * Request iopl privilege for all RPL, returns 0 on success
1061  */
1062 static int
1063 rte_eal_iopl_init(void)
1064 {
1065         return iopl(HIGHEST_RPL);
1066 }
1067
1068 /* Launch threads, called at application init(). */
1069 int
1070 rte_eal_init(int argc, char **argv)
1071 {
1072         int i, fctret, ret;
1073         pthread_t thread_id;
1074         static rte_atomic32_t run_once = RTE_ATOMIC32_INIT(0);
1075         struct shared_driver *solib = NULL;
1076         const char *logid;
1077
1078         if (!rte_atomic32_test_and_set(&run_once))
1079                 return -1;
1080
1081         logid = strrchr(argv[0], '/');
1082         logid = strdup(logid ? logid + 1: argv[0]);
1083
1084         thread_id = pthread_self();
1085
1086         if (rte_eal_log_early_init() < 0)
1087                 rte_panic("Cannot init early logs\n");
1088
1089         if (rte_eal_cpu_init() < 0)
1090                 rte_panic("Cannot detect lcores\n");
1091
1092         fctret = eal_parse_args(argc, argv);
1093         if (fctret < 0)
1094                 exit(1);
1095
1096         /* set log level as early as possible */
1097         rte_set_log_level(internal_config.log_level);
1098
1099         if (internal_config.no_hugetlbfs == 0 &&
1100                         internal_config.process_type != RTE_PROC_SECONDARY &&
1101                         internal_config.xen_dom0_support == 0 &&
1102                         eal_hugepage_info_init() < 0)
1103                 rte_panic("Cannot get hugepage information\n");
1104
1105         if (internal_config.memory == 0 && internal_config.force_sockets == 0) {
1106                 if (internal_config.no_hugetlbfs)
1107                         internal_config.memory = MEMSIZE_IF_NO_HUGE_PAGE;
1108                 else
1109                         internal_config.memory = eal_get_hugepage_mem_size();
1110         }
1111
1112         if (internal_config.vmware_tsc_map == 1) {
1113 #ifdef RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT
1114                 rte_cycles_vmware_tsc_map = 1;
1115                 RTE_LOG (DEBUG, EAL, "Using VMWARE TSC MAP, "
1116                                 "you must have monitor_control.pseudo_perfctr = TRUE\n");
1117 #else
1118                 RTE_LOG (WARNING, EAL, "Ignoring --vmware-tsc-map because "
1119                                 "RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT is not set\n");
1120 #endif
1121         }
1122
1123         rte_srand(rte_rdtsc());
1124
1125         rte_config_init();
1126
1127         if (rte_eal_iopl_init() == 0)
1128                 rte_config.flags |= EAL_FLG_HIGH_IOPL;
1129
1130         if (rte_eal_pci_init() < 0)
1131                 rte_panic("Cannot init PCI\n");
1132
1133 #ifdef RTE_LIBRTE_IVSHMEM
1134         if (rte_eal_ivshmem_init() < 0)
1135                 rte_panic("Cannot init IVSHMEM\n");
1136 #endif
1137
1138         if (rte_eal_memory_init() < 0)
1139                 rte_panic("Cannot init memory\n");
1140
1141         /* the directories are locked during eal_hugepage_info_init */
1142         eal_hugedirs_unlock();
1143
1144         if (rte_eal_memzone_init() < 0)
1145                 rte_panic("Cannot init memzone\n");
1146
1147         if (rte_eal_tailqs_init() < 0)
1148                 rte_panic("Cannot init tail queues for objects\n");
1149
1150 #ifdef RTE_LIBRTE_IVSHMEM
1151         if (rte_eal_ivshmem_obj_init() < 0)
1152                 rte_panic("Cannot init IVSHMEM objects\n");
1153 #endif
1154
1155         if (rte_eal_log_init(logid, internal_config.syslog_facility) < 0)
1156                 rte_panic("Cannot init logs\n");
1157
1158         if (rte_eal_alarm_init() < 0)
1159                 rte_panic("Cannot init interrupt-handling thread\n");
1160
1161         if (rte_eal_intr_init() < 0)
1162                 rte_panic("Cannot init interrupt-handling thread\n");
1163
1164         if (rte_eal_timer_init() < 0)
1165                 rte_panic("Cannot init HPET or TSC timers\n");
1166
1167         eal_check_mem_on_local_socket();
1168
1169         rte_eal_mcfg_complete();
1170
1171         TAILQ_FOREACH(solib, &solib_list, next) {
1172                 RTE_LOG(INFO, EAL, "open shared lib %s\n", solib->name);
1173                 solib->lib_handle = dlopen(solib->name, RTLD_NOW);
1174                 if (solib->lib_handle == NULL)
1175                         RTE_LOG(WARNING, EAL, "%s\n", dlerror());
1176         }
1177
1178         eal_thread_init_master(rte_config.master_lcore);
1179
1180         RTE_LOG(DEBUG, EAL, "Master core %u is ready (tid=%x)\n",
1181                 rte_config.master_lcore, (int)thread_id);
1182
1183         if (rte_eal_dev_init(PMD_INIT_PRE_PCI_PROBE) < 0)
1184                 rte_panic("Cannot init pmd devices\n");
1185
1186         RTE_LCORE_FOREACH_SLAVE(i) {
1187
1188                 /*
1189                  * create communication pipes between master thread
1190                  * and children
1191                  */
1192                 if (pipe(lcore_config[i].pipe_master2slave) < 0)
1193                         rte_panic("Cannot create pipe\n");
1194                 if (pipe(lcore_config[i].pipe_slave2master) < 0)
1195                         rte_panic("Cannot create pipe\n");
1196
1197                 lcore_config[i].state = WAIT;
1198
1199                 /* create a thread for each lcore */
1200                 ret = pthread_create(&lcore_config[i].thread_id, NULL,
1201                                      eal_thread_loop, NULL);
1202                 if (ret != 0)
1203                         rte_panic("Cannot create thread\n");
1204         }
1205
1206         /*
1207          * Launch a dummy function on all slave lcores, so that master lcore
1208          * knows they are all ready when this function returns.
1209          */
1210         rte_eal_mp_remote_launch(sync_func, NULL, SKIP_MASTER);
1211         rte_eal_mp_wait_lcore();
1212
1213         /* Probe & Initialize PCI devices */
1214         if (rte_eal_pci_probe())
1215                         rte_panic("Cannot probe PCI\n");
1216
1217         /* Initialize any outstanding devices */
1218         if (rte_eal_dev_init(PMD_INIT_POST_PCI_PROBE) < 0)
1219                 rte_panic("Cannot init pmd devices\n");
1220
1221         return fctret;
1222 }
1223
1224 /* get core role */
1225 enum rte_lcore_role_t
1226 rte_eal_lcore_role(unsigned lcore_id)
1227 {
1228         return (rte_config.lcore_role[lcore_id]);
1229 }
1230
1231 enum rte_proc_type_t
1232 rte_eal_process_type(void)
1233 {
1234         return (rte_config.process_type);
1235 }
1236
1237 int rte_eal_has_hugepages(void)
1238 {
1239         return ! internal_config.no_hugetlbfs;
1240 }