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