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