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_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 RTE_EAL_BLACKLIST_SIZE  0x100
 106
 107 #define MEMSIZE_IF_NO_HUGE_PAGE (64ULL * 1024ULL * 1024ULL)
 108
 109 #define SOCKET_MEM_STRLEN (RTE_MAX_NUMA_NODES * 10)
 110
 111 #define HIGHEST_RPL 3
 112
 113 #define BITS_PER_HEX 4
 114
 115 /* Allow the application to print its usage message too if set */
 116 static rte_usage_hook_t rte_application_usage_hook = NULL;
 117
 118 TAILQ_HEAD(shared_driver_list, shared_driver);
 119
 120 /* Definition for shared object drivers. */
 121 struct shared_driver {
 122         TAILQ_ENTRY(shared_driver) next;
 123
 124         char    name[PATH_MAX];
 125         void*   lib_handle;
 126 };
 127
 128 /* List of external loadable drivers */
 129 static struct shared_driver_list solib_list =
 130 TAILQ_HEAD_INITIALIZER(solib_list);
 131
 132 /* early configuration structure, when memory config is not mmapped */
 133 static struct rte_mem_config early_mem_config;
 134
 135 /* define fd variable here, because file needs to be kept open for the
 136  * duration of the program, as we hold a write lock on it in the primary proc */
 137 static int mem_cfg_fd = -1;
 138
 139 static struct flock wr_lock = {
 140                 .l_type = F_WRLCK,
 141                 .l_whence = SEEK_SET,
 142                 .l_start = offsetof(struct rte_mem_config, memseg),
 143                 .l_len = sizeof(early_mem_config.memseg),
 144 };
 145
 146 /* Address of global and public configuration */
 147 static struct rte_config rte_config = {
 148                 .mem_config = &early_mem_config,
 149 };
 150
 151 /* internal configuration (per-core) */
 152 struct lcore_config lcore_config[RTE_MAX_LCORE];
 153
 154 /* internal configuration */
 155 struct internal_config internal_config;
 156
 157 /* used by rte_rdtsc() */
 158 int rte_cycles_vmware_tsc_map;
 159
 160 /* Return a pointer to the configuration structure */
 161 struct rte_config *
 162 rte_eal_get_configuration(void)
 163 {
 164         return &rte_config;
 165 }
 166
 167 /* parse a sysfs (or other) file containing one integer value */
 168 int
 169 eal_parse_sysfs_value(const char *filename, unsigned long *val)
 170 {
 171         FILE *f;
 172         char buf[BUFSIZ];
 173         char *end = NULL;
 174
 175         if ((f = fopen(filename, "r")) == NULL) {
 176                 RTE_LOG(ERR, EAL, "%s(): cannot open sysfs value %s\n",
 177                         __func__, filename);
 178                 return -1;
 179         }
 180
 181         if (fgets(buf, sizeof(buf), f) == NULL) {
 182                 RTE_LOG(ERR, EAL, "%s(): cannot read sysfs value %s\n",
 183                         __func__, filename);
 184                 fclose(f);
 185                 return -1;
 186         }
 187         *val = strtoul(buf, &end, 0);
 188         if ((buf[0] == '\0') || (end == NULL) || (*end != '\n')) {
 189                 RTE_LOG(ERR, EAL, "%s(): cannot parse sysfs value %s\n",
 190                                 __func__, filename);
 191                 fclose(f);
 192                 return -1;
 193         }
 194         fclose(f);
 195         return 0;
 196 }
 197
 198
 199 /* create memory configuration in shared/mmap memory. Take out
 200  * a write lock on the memsegs, so we can auto-detect primary/secondary.
 201  * This means we never close the file while running (auto-close on exit).
 202  * We also don't lock the whole file, so that in future we can use read-locks
 203  * on other parts, e.g. memzones, to detect if there are running secondary
 204  * processes. */
 205 static void
 206 rte_eal_config_create(void)
 207 {
 208         void *rte_mem_cfg_addr;
 209         int retval;
 210
 211         const char *pathname = eal_runtime_config_path();
 212
 213         if (internal_config.no_shconf)
 214                 return;
 215
 216         /* map the config before hugepage address so that we don't waste a page */
 217         if (internal_config.base_virtaddr != 0)
 218                 rte_mem_cfg_addr = (void *)
 219                         RTE_ALIGN_FLOOR(internal_config.base_virtaddr -
 220                         sizeof(struct rte_mem_config), sysconf(_SC_PAGE_SIZE));
 221         else
 222                 rte_mem_cfg_addr = NULL;
 223
 224         if (mem_cfg_fd < 0){
 225                 mem_cfg_fd = open(pathname, O_RDWR | O_CREAT, 0660);
 226                 if (mem_cfg_fd < 0)
 227                         rte_panic("Cannot open '%s' for rte_mem_config\n", pathname);
 228         }
 229
 230         retval = ftruncate(mem_cfg_fd, sizeof(*rte_config.mem_config));
 231         if (retval < 0){
 232                 close(mem_cfg_fd);
 233                 rte_panic("Cannot resize '%s' for rte_mem_config\n", pathname);
 234         }
 235
 236         retval = fcntl(mem_cfg_fd, F_SETLK, &wr_lock);
 237         if (retval < 0){
 238                 close(mem_cfg_fd);
 239                 rte_exit(EXIT_FAILURE, "Cannot create lock on '%s'. Is another primary "
 240                                 "process running?\n", pathname);
 241         }
 242
 243         rte_mem_cfg_addr = mmap(rte_mem_cfg_addr, sizeof(*rte_config.mem_config),
 244                                 PROT_READ | PROT_WRITE, MAP_SHARED, mem_cfg_fd, 0);
 245
 246         if (rte_mem_cfg_addr == MAP_FAILED){
 247                 rte_panic("Cannot mmap memory for rte_config\n");
 248         }
 249         memcpy(rte_mem_cfg_addr, &early_mem_config, sizeof(early_mem_config));
 250         rte_config.mem_config = (struct rte_mem_config *) rte_mem_cfg_addr;
 251
 252         /* store address of the config in the config itself so that secondary
 253          * processes could later map the config into this exact location */
 254         rte_config.mem_config->mem_cfg_addr = (uintptr_t) rte_mem_cfg_addr;
 255
 256 }
 257
 258 /* attach to an existing shared memory config */
 259 static void
 260 rte_eal_config_attach(void)
 261 {
 262         struct rte_mem_config *mem_config;
 263
 264         const char *pathname = eal_runtime_config_path();
 265
 266         if (internal_config.no_shconf)
 267                 return;
 268
 269         if (mem_cfg_fd < 0){
 270                 mem_cfg_fd = open(pathname, O_RDWR);
 271                 if (mem_cfg_fd < 0)
 272                         rte_panic("Cannot open '%s' for rte_mem_config\n", pathname);
 273         }
 274
 275         /* map it as read-only first */
 276         mem_config = (struct rte_mem_config *) mmap(NULL, sizeof(*mem_config),
 277                         PROT_READ, MAP_SHARED, mem_cfg_fd, 0);
 278         if (mem_config == MAP_FAILED)
 279                 rte_panic("Cannot mmap memory for rte_config\n");
 280
 281         rte_config.mem_config = mem_config;
 282 }
 283
 284 /* reattach the shared config at exact memory location primary process has it */
 285 static void
 286 rte_eal_config_reattach(void)
 287 {
 288         struct rte_mem_config *mem_config;
 289         void *rte_mem_cfg_addr;
 290
 291         if (internal_config.no_shconf)
 292                 return;
 293
 294         /* save the address primary process has mapped shared config to */
 295         rte_mem_cfg_addr = (void *) (uintptr_t) rte_config.mem_config->mem_cfg_addr;
 296
 297         /* unmap original config */
 298         munmap(rte_config.mem_config, sizeof(struct rte_mem_config));
 299
 300         /* remap the config at proper address */
 301         mem_config = (struct rte_mem_config *) mmap(rte_mem_cfg_addr,
 302                         sizeof(*mem_config), PROT_READ | PROT_WRITE, MAP_SHARED,
 303                         mem_cfg_fd, 0);
 304         close(mem_cfg_fd);
 305         if (mem_config == MAP_FAILED || mem_config != rte_mem_cfg_addr)
 306                 rte_panic("Cannot mmap memory for rte_config\n");
 307
 308         rte_config.mem_config = mem_config;
 309 }
 310
 311 /* Detect if we are a primary or a secondary process */
 312 static enum rte_proc_type_t
 313 eal_proc_type_detect(void)
 314 {
 315         enum rte_proc_type_t ptype = RTE_PROC_PRIMARY;
 316         const char *pathname = eal_runtime_config_path();
 317
 318         /* if we can open the file but not get a write-lock we are a secondary
 319          * process. NOTE: if we get a file handle back, we keep that open
 320          * and don't close it to prevent a race condition between multiple opens */
 321         if (((mem_cfg_fd = open(pathname, O_RDWR)) >= 0) &&
 322                         (fcntl(mem_cfg_fd, F_SETLK, &wr_lock) < 0))
 323                 ptype = RTE_PROC_SECONDARY;
 324
 325         RTE_LOG(INFO, EAL, "Auto-detected process type: %s\n",
 326                         ptype == RTE_PROC_PRIMARY ? "PRIMARY" : "SECONDARY");
 327
 328         return ptype;
 329 }
 330
 331 /* Sets up rte_config structure with the pointer to shared memory config.*/
 332 static void
 333 rte_config_init(void)
 334 {
 335         rte_config.process_type = (internal_config.process_type == RTE_PROC_AUTO) ?
 336                         eal_proc_type_detect() : /* for auto, detect the type */
 337                         internal_config.process_type; /* otherwise use what's already set */
 338
 339         switch (rte_config.process_type){
 340         case RTE_PROC_PRIMARY:
 341                 rte_eal_config_create();
 342                 break;
 343         case RTE_PROC_SECONDARY:
 344                 rte_eal_config_attach();
 345                 rte_eal_mcfg_wait_complete(rte_config.mem_config);
 346                 rte_eal_config_reattach();
 347                 break;
 348         case RTE_PROC_AUTO:
 349         case RTE_PROC_INVALID:
 350                 rte_panic("Invalid process type\n");
 351         }
 352 }
 353
 354 /* Unlocks hugepage directories that were locked by eal_hugepage_info_init */
 355 static void
 356 eal_hugedirs_unlock(void)
 357 {
 358         int i;
 359
 360         for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
 361         {
 362                 /* skip uninitialized */
 363                 if (internal_config.hugepage_info[i].lock_descriptor < 0)
 364                         continue;
 365                 /* unlock hugepage file */
 366                 flock(internal_config.hugepage_info[i].lock_descriptor, LOCK_UN);
 367                 close(internal_config.hugepage_info[i].lock_descriptor);
 368                 /* reset the field */
 369                 internal_config.hugepage_info[i].lock_descriptor = -1;
 370         }
 371 }
 372
 373 /* display usage */
 374 static void
 375 eal_usage(const char *prgname)
 376 {
 377         printf("\nUsage: %s -c COREMASK -n NUM [-m NB] [-r NUM] [-b <domain:bus:devid.func>]"
 378                "[--proc-type primary|secondary|auto] \n\n"
 379                "EAL options:\n"
 380                "  -c COREMASK  : A hexadecimal bitmask of cores to run on\n"
 381                "  -n NUM       : Number of memory channels\n"
 382                    "  -v           : Display version information on startup\n"
 383                "  -d LIB.so    : add driver (can be used multiple times)\n"
 384                "  -m MB        : memory to allocate (see also --"OPT_SOCKET_MEM")\n"
 385                "  -r NUM       : force number of memory ranks (don't detect)\n"
 386                "  --"OPT_XEN_DOM0" : support application running on Xen Domain0 "
 387                            "without hugetlbfs\n"
 388                "  --"OPT_SYSLOG"     : set syslog facility\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_socket_mem(char *socket_mem)
 554 {
 555         char * arg[RTE_MAX_NUMA_NODES];
 556         char *end;
 557         int arg_num, i, len;
 558         uint64_t total_mem = 0;
 559
 560         len = strnlen(socket_mem, SOCKET_MEM_STRLEN);
 561         if (len == SOCKET_MEM_STRLEN) {
 562                 RTE_LOG(ERR, EAL, "--socket-mem is too long\n");
 563                 return -1;
 564         }
 565
 566         /* all other error cases will be caught later */
 567         if (!isdigit(socket_mem[len-1]))
 568                 return -1;
 569
 570         /* split the optarg into separate socket values */
 571         arg_num = rte_strsplit(socket_mem, len,
 572                         arg, RTE_MAX_NUMA_NODES, ',');
 573
 574         /* if split failed, or 0 arguments */
 575         if (arg_num <= 0)
 576                 return -1;
 577
 578         internal_config.force_sockets = 1;
 579
 580         /* parse each defined socket option */
 581         errno = 0;
 582         for (i = 0; i < arg_num; i++) {
 583                 end = NULL;
 584                 internal_config.socket_mem[i] = strtoull(arg[i], &end, 10);
 585
 586                 /* check for invalid input */
 587                 if ((errno != 0)  ||
 588                                 (arg[i][0] == '\0') || (end == NULL) || (*end != '\0'))
 589                         return -1;
 590                 internal_config.socket_mem[i] *= 1024ULL;
 591                 internal_config.socket_mem[i] *= 1024ULL;
 592                 total_mem += internal_config.socket_mem[i];
 593         }
 594
 595         /* check if we have a positive amount of total memory */
 596         if (total_mem == 0)
 597                 return -1;
 598
 599         return 0;
 600 }
 601
 602 static int
 603 eal_parse_base_virtaddr(const char *arg)
 604 {
 605         char *end;
 606         uint64_t addr;
 607
 608         errno = 0;
 609         addr = strtoull(arg, &end, 16);
 610
 611         /* check for errors */
 612         if ((errno != 0) || (arg[0] == '\0') || end == NULL || (*end != '\0'))
 613                 return -1;
 614
 615         /* make sure we don't exceed 32-bit boundary on 32-bit target */
 616 #ifndef RTE_ARCH_X86_64
 617         if (addr >= UINTPTR_MAX)
 618                 return -1;
 619 #endif
 620
 621         /* align the addr on 2M boundary */
 622         internal_config.base_virtaddr = RTE_PTR_ALIGN_CEIL((uintptr_t)addr,
 623                                                            RTE_PGSIZE_2M);
 624
 625         return 0;
 626 }
 627
 628 static int
 629 eal_parse_vfio_intr(const char *mode)
 630 {
 631         unsigned i;
 632         static struct {
 633                 const char *name;
 634                 enum rte_intr_mode value;
 635         } map[] = {
 636                 { "legacy", RTE_INTR_MODE_LEGACY },
 637                 { "msi", RTE_INTR_MODE_MSI },
 638                 { "msix", RTE_INTR_MODE_MSIX },
 639         };
 640
 641         for (i = 0; i < RTE_DIM(map); i++) {
 642                 if (!strcmp(mode, map[i].name)) {
 643                         internal_config.vfio_intr_mode = map[i].value;
 644                         return 0;
 645                 }
 646         }
 647         return -1;
 648 }
 649
 650 static inline size_t
 651 eal_get_hugepage_mem_size(void)
 652 {
 653         uint64_t size = 0;
 654         unsigned i, j;
 655
 656         for (i = 0; i < internal_config.num_hugepage_sizes; i++) {
 657                 struct hugepage_info *hpi = &internal_config.hugepage_info[i];
 658                 if (hpi->hugedir != NULL) {
 659                         for (j = 0; j < RTE_MAX_NUMA_NODES; j++) {
 660                                 size += hpi->hugepage_sz * hpi->num_pages[j];
 661                         }
 662                 }
 663         }
 664
 665         return (size < SIZE_MAX) ? (size_t)(size) : SIZE_MAX;
 666 }
 667
 668 static enum rte_proc_type_t
 669 eal_parse_proc_type(const char *arg)
 670 {
 671         if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
 672                 return RTE_PROC_PRIMARY;
 673         if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
 674                 return RTE_PROC_SECONDARY;
 675         if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
 676                 return RTE_PROC_AUTO;
 677
 678         return RTE_PROC_INVALID;
 679 }
 680
 681 /* Parse the argument given in the command line of the application */
 682 static int
 683 eal_parse_args(int argc, char **argv)
 684 {
 685         int opt, ret, i;
 686         char **argvopt;
 687         int option_index;
 688         int coremask_ok = 0;
 689         char *prgname = argv[0];
 690         static struct option lgopts[] = {
 691                 {OPT_NO_HUGE, 0, 0, 0},
 692                 {OPT_NO_PCI, 0, 0, 0},
 693                 {OPT_NO_HPET, 0, 0, 0},
 694                 {OPT_VMWARE_TSC_MAP, 0, 0, 0},
 695                 {OPT_HUGE_DIR, 1, 0, 0},
 696                 {OPT_NO_SHCONF, 0, 0, 0},
 697                 {OPT_PROC_TYPE, 1, 0, 0},
 698                 {OPT_FILE_PREFIX, 1, 0, 0},
 699                 {OPT_SOCKET_MEM, 1, 0, 0},
 700                 {OPT_PCI_WHITELIST, 1, 0, 0},
 701                 {OPT_PCI_BLACKLIST, 1, 0, 0},
 702                 {OPT_VDEV, 1, 0, 0},
 703                 {OPT_SYSLOG, 1, NULL, 0},
 704                 {OPT_VFIO_INTR, 1, NULL, 0},
 705                 {OPT_BASE_VIRTADDR, 1, 0, 0},
 706                 {OPT_XEN_DOM0, 0, 0, 0},
 707                 {OPT_CREATE_UIO_DEV, 1, NULL, 0},
 708                 {0, 0, 0, 0}
 709         };
 710         struct shared_driver *solib;
 711
 712         argvopt = argv;
 713
 714         internal_config.memory = 0;
 715         internal_config.force_nrank = 0;
 716         internal_config.force_nchannel = 0;
 717         internal_config.hugefile_prefix = HUGEFILE_PREFIX_DEFAULT;
 718         internal_config.hugepage_dir = NULL;
 719         internal_config.force_sockets = 0;
 720         internal_config.syslog_facility = LOG_DAEMON;
 721         internal_config.xen_dom0_support = 0;
 722         /* if set to NONE, interrupt mode is determined automatically */
 723         internal_config.vfio_intr_mode = RTE_INTR_MODE_NONE;
 724 #ifdef RTE_LIBEAL_USE_HPET
 725         internal_config.no_hpet = 0;
 726 #else
 727         internal_config.no_hpet = 1;
 728 #endif
 729         /* zero out the NUMA config */
 730         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 731                 internal_config.socket_mem[i] = 0;
 732
 733         /* zero out hugedir descriptors */
 734         for (i = 0; i < MAX_HUGEPAGE_SIZES; i++)
 735                 internal_config.hugepage_info[i].lock_descriptor = -1;
 736
 737         internal_config.vmware_tsc_map = 0;
 738         internal_config.base_virtaddr = 0;
 739
 740         while ((opt = getopt_long(argc, argvopt, "b:w:c:d:m:n:r:v",
 741                                   lgopts, &option_index)) != EOF) {
 742
 743                 switch (opt) {
 744                 /* blacklist */
 745                 case 'b':
 746                         if (rte_eal_devargs_add(RTE_DEVTYPE_BLACKLISTED_PCI,
 747                                         optarg) < 0) {
 748                                 eal_usage(prgname);
 749                                 return (-1);
 750                         }
 751                         break;
 752                 /* whitelist */
 753                 case 'w':
 754                         if (rte_eal_devargs_add(RTE_DEVTYPE_WHITELISTED_PCI,
 755                                         optarg) < 0) {
 756                                 eal_usage(prgname);
 757                                 return -1;
 758                         }
 759                         break;
 760                 /* coremask */
 761                 case 'c':
 762                         if (eal_parse_coremask(optarg) < 0) {
 763                                 RTE_LOG(ERR, EAL, "invalid coremask\n");
 764                                 eal_usage(prgname);
 765                                 return -1;
 766                         }
 767                         coremask_ok = 1;
 768                         break;
 769                 /* force loading of external driver */
 770                 case 'd':
 771                         solib = malloc(sizeof(*solib));
 772                         if (solib == NULL) {
 773                                 RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
 774                                 return -1;
 775                         }
 776                         memset(solib, 0, sizeof(*solib));
 777                         strncpy(solib->name, optarg, PATH_MAX-1);
 778                         solib->name[PATH_MAX-1] = 0;
 779                         TAILQ_INSERT_TAIL(&solib_list, solib, next);
 780                         break;
 781                 /* size of memory */
 782                 case 'm':
 783                         internal_config.memory = atoi(optarg);
 784                         internal_config.memory *= 1024ULL;
 785                         internal_config.memory *= 1024ULL;
 786                         break;
 787                 /* force number of channels */
 788                 case 'n':
 789                         internal_config.force_nchannel = atoi(optarg);
 790                         if (internal_config.force_nchannel == 0 ||
 791                             internal_config.force_nchannel > 4) {
 792                                 RTE_LOG(ERR, EAL, "invalid channel number\n");
 793                                 eal_usage(prgname);
 794                                 return -1;
 795                         }
 796                         break;
 797                 /* force number of ranks */
 798                 case 'r':
 799                         internal_config.force_nrank = atoi(optarg);
 800                         if (internal_config.force_nrank == 0 ||
 801                             internal_config.force_nrank > 16) {
 802                                 RTE_LOG(ERR, EAL, "invalid rank number\n");
 803                                 eal_usage(prgname);
 804                                 return -1;
 805                         }
 806                         break;
 807                 case 'v':
 808                         /* since message is explicitly requested by user, we
 809                          * write message at highest log level so it can always be seen
 810                          * even if info or warning messages are disabled */
 811                         RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
 812                         break;
 813
 814                 /* long options */
 815                 case 0:
 816                         if (!strcmp(lgopts[option_index].name, OPT_NO_HUGE)) {
 817                                 internal_config.no_hugetlbfs = 1;
 818                         }
 819                         if (!strcmp(lgopts[option_index].name, OPT_XEN_DOM0)) {
 820                 #ifdef RTE_LIBRTE_XEN_DOM0
 821                                 internal_config.xen_dom0_support = 1;
 822                 #else
 823                                 RTE_LOG(ERR, EAL, "Can't support DPDK app "
 824                                         "running on Dom0, please configure"
 825                                         " RTE_LIBRTE_XEN_DOM0=y\n");
 826                                 return -1;
 827                 #endif
 828                         }
 829                         else if (!strcmp(lgopts[option_index].name, OPT_NO_PCI)) {
 830                                 internal_config.no_pci = 1;
 831                         }
 832                         else if (!strcmp(lgopts[option_index].name, OPT_NO_HPET)) {
 833                                 internal_config.no_hpet = 1;
 834                         }
 835                         else if (!strcmp(lgopts[option_index].name, OPT_VMWARE_TSC_MAP)) {
 836                                 internal_config.vmware_tsc_map = 1;
 837                         }
 838                         else if (!strcmp(lgopts[option_index].name, OPT_NO_SHCONF)) {
 839                                 internal_config.no_shconf = 1;
 840                         }
 841                         else if (!strcmp(lgopts[option_index].name, OPT_HUGE_DIR)) {
 842                                 internal_config.hugepage_dir = optarg;
 843                         }
 844                         else if (!strcmp(lgopts[option_index].name, OPT_PROC_TYPE)) {
 845                                 internal_config.process_type = eal_parse_proc_type(optarg);
 846                         }
 847                         else if (!strcmp(lgopts[option_index].name, OPT_FILE_PREFIX)) {
 848                                 internal_config.hugefile_prefix = optarg;
 849                         }
 850                         else if (!strcmp(lgopts[option_index].name, OPT_SOCKET_MEM)) {
 851                                 if (eal_parse_socket_mem(optarg) < 0) {
 852                                         RTE_LOG(ERR, EAL, "invalid parameters for --"
 853                                                         OPT_SOCKET_MEM "\n");
 854                                         eal_usage(prgname);
 855                                         return -1;
 856                                 }
 857                         }
 858                         else if (!strcmp(lgopts[option_index].name, OPT_USE_DEVICE)) {
 859                                 printf("The --use-device option is deprecated, please use\n"
 860                                         "--whitelist or --vdev instead.\n");
 861                                 eal_usage(prgname);
 862                                 return -1;
 863                         }
 864                         else if (!strcmp(lgopts[option_index].name, OPT_PCI_BLACKLIST)) {
 865                                 if (rte_eal_devargs_add(RTE_DEVTYPE_BLACKLISTED_PCI,
 866                                                 optarg) < 0) {
 867                                         eal_usage(prgname);
 868                                         return -1;
 869                                 }
 870                         }
 871                         else if (!strcmp(lgopts[option_index].name, OPT_PCI_WHITELIST)) {
 872                                 if (rte_eal_devargs_add(RTE_DEVTYPE_WHITELISTED_PCI,
 873                                                 optarg) < 0) {
 874                                         eal_usage(prgname);
 875                                         return -1;
 876                                 }
 877                         }
 878                         else if (!strcmp(lgopts[option_index].name, OPT_VDEV)) {
 879                                 if (rte_eal_devargs_add(RTE_DEVTYPE_VIRTUAL,
 880                                                 optarg) < 0) {
 881                                         eal_usage(prgname);
 882                                         return -1;
 883                                 }
 884                         }
 885                         else if (!strcmp(lgopts[option_index].name, OPT_SYSLOG)) {
 886                                 if (eal_parse_syslog(optarg) < 0) {
 887                                         RTE_LOG(ERR, EAL, "invalid parameters for --"
 888                                                         OPT_SYSLOG "\n");
 889                                         eal_usage(prgname);
 890                                         return -1;
 891                                 }
 892                         }
 893                         else if (!strcmp(lgopts[option_index].name, OPT_BASE_VIRTADDR)) {
 894                                 if (eal_parse_base_virtaddr(optarg) < 0) {
 895                                         RTE_LOG(ERR, EAL, "invalid parameter for --"
 896                                                         OPT_BASE_VIRTADDR "\n");
 897                                         eal_usage(prgname);
 898                                         return -1;
 899                                 }
 900                         }
 901                         else if (!strcmp(lgopts[option_index].name, OPT_VFIO_INTR)) {
 902                                 if (eal_parse_vfio_intr(optarg) < 0) {
 903                                         RTE_LOG(ERR, EAL, "invalid parameters for --"
 904                                                         OPT_VFIO_INTR "\n");
 905                                         eal_usage(prgname);
 906                                         return -1;
 907                                 }
 908                         }
 909                         else if (!strcmp(lgopts[option_index].name, OPT_CREATE_UIO_DEV)) {
 910                                 internal_config.create_uio_dev = 1;
 911                         }
 912                         break;
 913
 914                 default:
 915                         eal_usage(prgname);
 916                         return -1;
 917                 }
 918         }
 919
 920         /* sanity checks */
 921         if (!coremask_ok) {
 922                 RTE_LOG(ERR, EAL, "coremask not specified\n");
 923                 eal_usage(prgname);
 924                 return -1;
 925         }
 926         if (internal_config.process_type == RTE_PROC_AUTO){
 927                 internal_config.process_type = eal_proc_type_detect();
 928         }
 929         if (internal_config.process_type == RTE_PROC_INVALID){
 930                 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
 931                 eal_usage(prgname);
 932                 return -1;
 933         }
 934         if (internal_config.process_type == RTE_PROC_PRIMARY &&
 935                         internal_config.force_nchannel == 0) {
 936                 RTE_LOG(ERR, EAL, "Number of memory channels (-n) not specified\n");
 937                 eal_usage(prgname);
 938                 return -1;
 939         }
 940         if (index(internal_config.hugefile_prefix,'%') != NULL){
 941                 RTE_LOG(ERR, EAL, "Invalid char, '%%', in '"OPT_FILE_PREFIX"' option\n");
 942                 eal_usage(prgname);
 943                 return -1;
 944         }
 945         if (internal_config.memory > 0 && internal_config.force_sockets == 1) {
 946                 RTE_LOG(ERR, EAL, "Options -m and --socket-mem cannot be specified "
 947                                 "at the same time\n");
 948                 eal_usage(prgname);
 949                 return -1;
 950         }
 951         /* --no-huge doesn't make sense with either -m or --socket-mem */
 952         if (internal_config.no_hugetlbfs &&
 953                         (internal_config.memory > 0 ||
 954                                         internal_config.force_sockets == 1)) {
 955                 RTE_LOG(ERR, EAL, "Options -m or --socket-mem cannot be specified "
 956                                 "together with --no-huge!\n");
 957                 eal_usage(prgname);
 958                 return -1;
 959         }
 960         /* --xen-dom0 doesn't make sense with --socket-mem */
 961         if (internal_config.xen_dom0_support && internal_config.force_sockets == 1) {
 962                 RTE_LOG(ERR, EAL, "Options --socket-mem cannot be specified "
 963                                         "together with --xen_dom0!\n");
 964                 eal_usage(prgname);
 965                 return -1;
 966         }
 967
 968         if (rte_eal_devargs_type_count(RTE_DEVTYPE_WHITELISTED_PCI) != 0 &&
 969                 rte_eal_devargs_type_count(RTE_DEVTYPE_BLACKLISTED_PCI) != 0) {
 970                 RTE_LOG(ERR, EAL, "Error: blacklist [-b] and whitelist "
 971                         "[-w] options cannot be used at the same time\n");
 972                 eal_usage(prgname);
 973                 return -1;
 974         }
 975
 976         if (optind >= 0)
 977                 argv[optind-1] = prgname;
 978
 979         /* if no memory amounts were requested, this will result in 0 and
 980          * will be overriden later, right after eal_hugepage_info_init() */
 981         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 982                 internal_config.memory += internal_config.socket_mem[i];
 983
 984         ret = optind-1;
 985         optind = 0; /* reset getopt lib */
 986         return ret;
 987 }
 988
 989 static void
 990 eal_check_mem_on_local_socket(void)
 991 {
 992         const struct rte_memseg *ms;
 993         int i, socket_id;
 994
 995         socket_id = rte_lcore_to_socket_id(rte_config.master_lcore);
 996
 997         ms = rte_eal_get_physmem_layout();
 998
 999         for (i = 0; i < RTE_MAX_MEMSEG; i++)
1000                 if (ms[i].socket_id == socket_id &&
1001                                 ms[i].len > 0)
1002                         return;
1003
1004         RTE_LOG(WARNING, EAL, "WARNING: Master core has no "
1005                         "memory on local socket!\n");
1006 }
1007
1008 static int
1009 sync_func(__attribute__((unused)) void *arg)
1010 {
1011         return 0;
1012 }
1013
1014 inline static void
1015 rte_eal_mcfg_complete(void)
1016 {
1017         /* ALL shared mem_config related INIT DONE */
1018         if (rte_config.process_type == RTE_PROC_PRIMARY)
1019                 rte_config.mem_config->magic = RTE_MAGIC;
1020 }
1021
1022 /*
1023  * Request iopl privilege for all RPL, returns 0 on success
1024  */
1025 static int
1026 rte_eal_iopl_init(void)
1027 {
1028         return iopl(HIGHEST_RPL);
1029 }
1030
1031 /* Launch threads, called at application init(). */
1032 int
1033 rte_eal_init(int argc, char **argv)
1034 {
1035         int i, fctret, ret;
1036         pthread_t thread_id;
1037         static rte_atomic32_t run_once = RTE_ATOMIC32_INIT(0);
1038         struct shared_driver *solib = NULL;
1039         const char *logid;
1040
1041         if (!rte_atomic32_test_and_set(&run_once))
1042                 return -1;
1043
1044         logid = strrchr(argv[0], '/');
1045         logid = strdup(logid ? logid + 1: argv[0]);
1046
1047         thread_id = pthread_self();
1048
1049         if (rte_eal_log_early_init() < 0)
1050                 rte_panic("Cannot init early logs\n");
1051
1052         if (rte_eal_cpu_init() < 0)
1053                 rte_panic("Cannot detect lcores\n");
1054
1055         fctret = eal_parse_args(argc, argv);
1056         if (fctret < 0)
1057                 exit(1);
1058
1059         if (internal_config.no_hugetlbfs == 0 &&
1060                         internal_config.process_type != RTE_PROC_SECONDARY &&
1061                         internal_config.xen_dom0_support == 0 &&
1062                         eal_hugepage_info_init() < 0)
1063                 rte_panic("Cannot get hugepage information\n");
1064
1065         if (internal_config.memory == 0 && internal_config.force_sockets == 0) {
1066                 if (internal_config.no_hugetlbfs)
1067                         internal_config.memory = MEMSIZE_IF_NO_HUGE_PAGE;
1068                 else
1069                         internal_config.memory = eal_get_hugepage_mem_size();
1070         }
1071
1072         if (internal_config.vmware_tsc_map == 1) {
1073 #ifdef RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT
1074                 rte_cycles_vmware_tsc_map = 1;
1075                 RTE_LOG (DEBUG, EAL, "Using VMWARE TSC MAP, "
1076                                 "you must have monitor_control.pseudo_perfctr = TRUE\n");
1077 #else
1078                 RTE_LOG (WARNING, EAL, "Ignoring --vmware-tsc-map because "
1079                                 "RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT is not set\n");
1080 #endif
1081         }
1082
1083         rte_srand(rte_rdtsc());
1084
1085         rte_config_init();
1086
1087         if (rte_eal_iopl_init() == 0)
1088                 rte_config.flags |= EAL_FLG_HIGH_IOPL;
1089
1090         if (rte_eal_pci_init() < 0)
1091                 rte_panic("Cannot init PCI\n");
1092
1093 #ifdef RTE_LIBRTE_IVSHMEM
1094         if (rte_eal_ivshmem_init() < 0)
1095                 rte_panic("Cannot init IVSHMEM\n");
1096 #endif
1097
1098         if (rte_eal_memory_init() < 0)
1099                 rte_panic("Cannot init memory\n");
1100
1101         /* the directories are locked during eal_hugepage_info_init */
1102         eal_hugedirs_unlock();
1103
1104         if (rte_eal_memzone_init() < 0)
1105                 rte_panic("Cannot init memzone\n");
1106
1107         if (rte_eal_tailqs_init() < 0)
1108                 rte_panic("Cannot init tail queues for objects\n");
1109
1110 #ifdef RTE_LIBRTE_IVSHMEM
1111         if (rte_eal_ivshmem_obj_init() < 0)
1112                 rte_panic("Cannot init IVSHMEM objects\n");
1113 #endif
1114
1115         if (rte_eal_log_init(logid, internal_config.syslog_facility) < 0)
1116                 rte_panic("Cannot init logs\n");
1117
1118         if (rte_eal_alarm_init() < 0)
1119                 rte_panic("Cannot init interrupt-handling thread\n");
1120
1121         if (rte_eal_intr_init() < 0)
1122                 rte_panic("Cannot init interrupt-handling thread\n");
1123
1124         if (rte_eal_timer_init() < 0)
1125                 rte_panic("Cannot init HPET or TSC timers\n");
1126
1127         eal_check_mem_on_local_socket();
1128
1129         rte_eal_mcfg_complete();
1130
1131         TAILQ_FOREACH(solib, &solib_list, next) {
1132                 RTE_LOG(INFO, EAL, "open shared lib %s\n", solib->name);
1133                 solib->lib_handle = dlopen(solib->name, RTLD_NOW);
1134                 if (solib->lib_handle == NULL)
1135                         RTE_LOG(WARNING, EAL, "%s\n", dlerror());
1136         }
1137
1138         eal_thread_init_master(rte_config.master_lcore);
1139
1140         RTE_LOG(DEBUG, EAL, "Master core %u is ready (tid=%x)\n",
1141                 rte_config.master_lcore, (int)thread_id);
1142
1143         if (rte_eal_dev_init(PMD_INIT_PRE_PCI_PROBE) < 0)
1144                 rte_panic("Cannot init pmd devices\n");
1145
1146         RTE_LCORE_FOREACH_SLAVE(i) {
1147
1148                 /*
1149                  * create communication pipes between master thread
1150                  * and children
1151                  */
1152                 if (pipe(lcore_config[i].pipe_master2slave) < 0)
1153                         rte_panic("Cannot create pipe\n");
1154                 if (pipe(lcore_config[i].pipe_slave2master) < 0)
1155                         rte_panic("Cannot create pipe\n");
1156
1157                 lcore_config[i].state = WAIT;
1158
1159                 /* create a thread for each lcore */
1160                 ret = pthread_create(&lcore_config[i].thread_id, NULL,
1161                                      eal_thread_loop, NULL);
1162                 if (ret != 0)
1163                         rte_panic("Cannot create thread\n");
1164         }
1165
1166         /*
1167          * Launch a dummy function on all slave lcores, so that master lcore
1168          * knows they are all ready when this function returns.
1169          */
1170         rte_eal_mp_remote_launch(sync_func, NULL, SKIP_MASTER);
1171         rte_eal_mp_wait_lcore();
1172
1173         /* Probe & Initialize PCI devices */
1174         if (rte_eal_pci_probe())
1175                         rte_panic("Cannot probe PCI\n");
1176
1177         /* Initialize any outstanding devices */
1178         if (rte_eal_dev_init(PMD_INIT_POST_PCI_PROBE) < 0)
1179                 rte_panic("Cannot init pmd devices\n");
1180
1181         return fctret;
1182 }
1183
1184 /* get core role */
1185 enum rte_lcore_role_t
1186 rte_eal_lcore_role(unsigned lcore_id)
1187 {
1188         return (rte_config.lcore_role[lcore_id]);
1189 }
1190
1191 enum rte_proc_type_t
1192 rte_eal_process_type(void)
1193 {
1194         return (rte_config.process_type);
1195 }
1196
1197 int rte_eal_has_hugepages(void)
1198 {
1199         return ! internal_config.no_hugetlbfs;
1200 }