lib/librte_eal/common/eal_common_options.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2014 Intel Corporation.
   3  * Copyright(c) 2014 6WIND S.A.
   4  */
   5
   6 #include <stdlib.h>
   7 #include <unistd.h>
   8 #include <string.h>
   9 #include <syslog.h>
  10 #include <ctype.h>
  11 #include <limits.h>
  12 #include <errno.h>
  13 #include <getopt.h>
  14 #include <dlfcn.h>
  15 #include <sys/types.h>
  16 #include <sys/stat.h>
  17 #include <dirent.h>
  18
  19 #include <rte_eal.h>
  20 #include <rte_log.h>
  21 #include <rte_lcore.h>
  22 #include <rte_tailq.h>
  23 #include <rte_version.h>
  24 #include <rte_devargs.h>
  25 #include <rte_memcpy.h>
  26
  27 #include "eal_internal_cfg.h"
  28 #include "eal_options.h"
  29 #include "eal_filesystem.h"
  30 #include "eal_private.h"
  31
  32 #define BITS_PER_HEX 4
  33 #define LCORE_OPT_LST 1
  34 #define LCORE_OPT_MSK 2
  35 #define LCORE_OPT_MAP 3
  36
  37 const char
  38 eal_short_options[] =
  39         "b:" /* pci-blacklist */
  40         "c:" /* coremask */
  41         "s:" /* service coremask */
  42         "d:" /* driver */
  43         "h"  /* help */
  44         "l:" /* corelist */
  45         "S:" /* service corelist */
  46         "m:" /* memory size */
  47         "n:" /* memory channels */
  48         "r:" /* memory ranks */
  49         "v"  /* version */
  50         "w:" /* pci-whitelist */
  51         ;
  52
  53 const struct option
  54 eal_long_options[] = {
  55         {OPT_BASE_VIRTADDR,     1, NULL, OPT_BASE_VIRTADDR_NUM    },
  56         {OPT_CREATE_UIO_DEV,    0, NULL, OPT_CREATE_UIO_DEV_NUM   },
  57         {OPT_FILE_PREFIX,       1, NULL, OPT_FILE_PREFIX_NUM      },
  58         {OPT_HELP,              0, NULL, OPT_HELP_NUM             },
  59         {OPT_HUGE_DIR,          1, NULL, OPT_HUGE_DIR_NUM         },
  60         {OPT_HUGE_UNLINK,       0, NULL, OPT_HUGE_UNLINK_NUM      },
  61         {OPT_LCORES,            1, NULL, OPT_LCORES_NUM           },
  62         {OPT_LOG_LEVEL,         1, NULL, OPT_LOG_LEVEL_NUM        },
  63         {OPT_MASTER_LCORE,      1, NULL, OPT_MASTER_LCORE_NUM     },
  64         {OPT_MBUF_POOL_OPS_NAME, 1, NULL, OPT_MBUF_POOL_OPS_NAME_NUM},
  65         {OPT_NO_HPET,           0, NULL, OPT_NO_HPET_NUM          },
  66         {OPT_NO_HUGE,           0, NULL, OPT_NO_HUGE_NUM          },
  67         {OPT_NO_PCI,            0, NULL, OPT_NO_PCI_NUM           },
  68         {OPT_NO_SHCONF,         0, NULL, OPT_NO_SHCONF_NUM        },
  69         {OPT_IN_MEMORY,         0, NULL, OPT_IN_MEMORY_NUM        },
  70         {OPT_PCI_BLACKLIST,     1, NULL, OPT_PCI_BLACKLIST_NUM    },
  71         {OPT_PCI_WHITELIST,     1, NULL, OPT_PCI_WHITELIST_NUM    },
  72         {OPT_PROC_TYPE,         1, NULL, OPT_PROC_TYPE_NUM        },
  73         {OPT_SOCKET_MEM,        1, NULL, OPT_SOCKET_MEM_NUM       },
  74         {OPT_SOCKET_LIMIT,      1, NULL, OPT_SOCKET_LIMIT_NUM     },
  75         {OPT_SYSLOG,            1, NULL, OPT_SYSLOG_NUM           },
  76         {OPT_VDEV,              1, NULL, OPT_VDEV_NUM             },
  77         {OPT_VFIO_INTR,         1, NULL, OPT_VFIO_INTR_NUM        },
  78         {OPT_VMWARE_TSC_MAP,    0, NULL, OPT_VMWARE_TSC_MAP_NUM   },
  79         {OPT_LEGACY_MEM,        0, NULL, OPT_LEGACY_MEM_NUM       },
  80         {OPT_SINGLE_FILE_SEGMENTS, 0, NULL, OPT_SINGLE_FILE_SEGMENTS_NUM},
  81         {0,                     0, NULL, 0                        }
  82 };
  83
  84 TAILQ_HEAD(shared_driver_list, shared_driver);
  85
  86 /* Definition for shared object drivers. */
  87 struct shared_driver {
  88         TAILQ_ENTRY(shared_driver) next;
  89
  90         char    name[PATH_MAX];
  91         void*   lib_handle;
  92 };
  93
  94 /* List of external loadable drivers */
  95 static struct shared_driver_list solib_list =
  96 TAILQ_HEAD_INITIALIZER(solib_list);
  97
  98 /* Default path of external loadable drivers */
  99 static const char *default_solib_dir = RTE_EAL_PMD_PATH;
 100
 101 /*
 102  * Stringified version of solib path used by dpdk-pmdinfo.py
 103  * Note: PLEASE DO NOT ALTER THIS without making a corresponding
 104  * change to usertools/dpdk-pmdinfo.py
 105  */
 106 static const char dpdk_solib_path[] __attribute__((used)) =
 107 "DPDK_PLUGIN_PATH=" RTE_EAL_PMD_PATH;
 108
 109 TAILQ_HEAD(device_option_list, device_option);
 110
 111 struct device_option {
 112         TAILQ_ENTRY(device_option) next;
 113
 114         enum rte_devtype type;
 115         char arg[];
 116 };
 117
 118 static struct device_option_list devopt_list =
 119 TAILQ_HEAD_INITIALIZER(devopt_list);
 120
 121 static int master_lcore_parsed;
 122 static int mem_parsed;
 123 static int core_parsed;
 124
 125 static int
 126 eal_option_device_add(enum rte_devtype type, const char *optarg)
 127 {
 128         struct device_option *devopt;
 129         size_t optlen;
 130         int ret;
 131
 132         optlen = strlen(optarg) + 1;
 133         devopt = calloc(1, sizeof(*devopt) + optlen);
 134         if (devopt == NULL) {
 135                 RTE_LOG(ERR, EAL, "Unable to allocate device option\n");
 136                 return -ENOMEM;
 137         }
 138
 139         devopt->type = type;
 140         ret = snprintf(devopt->arg, optlen, "%s", optarg);
 141         if (ret < 0) {
 142                 RTE_LOG(ERR, EAL, "Unable to copy device option\n");
 143                 free(devopt);
 144                 return -EINVAL;
 145         }
 146         TAILQ_INSERT_TAIL(&devopt_list, devopt, next);
 147         return 0;
 148 }
 149
 150 int
 151 eal_option_device_parse(void)
 152 {
 153         struct device_option *devopt;
 154         void *tmp;
 155         int ret = 0;
 156
 157         TAILQ_FOREACH_SAFE(devopt, &devopt_list, next, tmp) {
 158                 if (ret == 0) {
 159                         ret = rte_devargs_add(devopt->type, devopt->arg);
 160                         if (ret)
 161                                 RTE_LOG(ERR, EAL, "Unable to parse device '%s'\n",
 162                                         devopt->arg);
 163                 }
 164                 TAILQ_REMOVE(&devopt_list, devopt, next);
 165                 free(devopt);
 166         }
 167         return ret;
 168 }
 169
 170 void
 171 eal_reset_internal_config(struct internal_config *internal_cfg)
 172 {
 173         int i;
 174
 175         internal_cfg->memory = 0;
 176         internal_cfg->force_nrank = 0;
 177         internal_cfg->force_nchannel = 0;
 178         internal_cfg->hugefile_prefix = HUGEFILE_PREFIX_DEFAULT;
 179         internal_cfg->hugepage_dir = NULL;
 180         internal_cfg->force_sockets = 0;
 181         /* zero out the NUMA config */
 182         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 183                 internal_cfg->socket_mem[i] = 0;
 184         internal_cfg->force_socket_limits = 0;
 185         /* zero out the NUMA limits config */
 186         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 187                 internal_cfg->socket_limit[i] = 0;
 188         /* zero out hugedir descriptors */
 189         for (i = 0; i < MAX_HUGEPAGE_SIZES; i++) {
 190                 memset(&internal_cfg->hugepage_info[i], 0,
 191                                 sizeof(internal_cfg->hugepage_info[0]));
 192                 internal_cfg->hugepage_info[i].lock_descriptor = -1;
 193         }
 194         internal_cfg->base_virtaddr = 0;
 195
 196         internal_cfg->syslog_facility = LOG_DAEMON;
 197
 198         /* if set to NONE, interrupt mode is determined automatically */
 199         internal_cfg->vfio_intr_mode = RTE_INTR_MODE_NONE;
 200
 201 #ifdef RTE_LIBEAL_USE_HPET
 202         internal_cfg->no_hpet = 0;
 203 #else
 204         internal_cfg->no_hpet = 1;
 205 #endif
 206         internal_cfg->vmware_tsc_map = 0;
 207         internal_cfg->create_uio_dev = 0;
 208         internal_cfg->user_mbuf_pool_ops_name = NULL;
 209         internal_cfg->init_complete = 0;
 210 }
 211
 212 static int
 213 eal_plugin_add(const char *path)
 214 {
 215         struct shared_driver *solib;
 216
 217         solib = malloc(sizeof(*solib));
 218         if (solib == NULL) {
 219                 RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
 220                 return -1;
 221         }
 222         memset(solib, 0, sizeof(*solib));
 223         strncpy(solib->name, path, PATH_MAX-1);
 224         solib->name[PATH_MAX-1] = 0;
 225         TAILQ_INSERT_TAIL(&solib_list, solib, next);
 226
 227         return 0;
 228 }
 229
 230 static int
 231 eal_plugindir_init(const char *path)
 232 {
 233         DIR *d = NULL;
 234         struct dirent *dent = NULL;
 235         char sopath[PATH_MAX];
 236
 237         if (path == NULL || *path == '\0')
 238                 return 0;
 239
 240         d = opendir(path);
 241         if (d == NULL) {
 242                 RTE_LOG(ERR, EAL, "failed to open directory %s: %s\n",
 243                         path, strerror(errno));
 244                 return -1;
 245         }
 246
 247         while ((dent = readdir(d)) != NULL) {
 248                 struct stat sb;
 249
 250                 snprintf(sopath, PATH_MAX-1, "%s/%s", path, dent->d_name);
 251                 sopath[PATH_MAX-1] = 0;
 252
 253                 if (!(stat(sopath, &sb) == 0 && S_ISREG(sb.st_mode)))
 254                         continue;
 255
 256                 if (eal_plugin_add(sopath) == -1)
 257                         break;
 258         }
 259
 260         closedir(d);
 261         /* XXX this ignores failures from readdir() itself */
 262         return (dent == NULL) ? 0 : -1;
 263 }
 264
 265 int
 266 eal_plugins_init(void)
 267 {
 268         struct shared_driver *solib = NULL;
 269         struct stat sb;
 270
 271         if (*default_solib_dir != '\0' && stat(default_solib_dir, &sb) == 0 &&
 272                                 S_ISDIR(sb.st_mode))
 273                 eal_plugin_add(default_solib_dir);
 274
 275         TAILQ_FOREACH(solib, &solib_list, next) {
 276
 277                 if (stat(solib->name, &sb) == 0 && S_ISDIR(sb.st_mode)) {
 278                         if (eal_plugindir_init(solib->name) == -1) {
 279                                 RTE_LOG(ERR, EAL,
 280                                         "Cannot init plugin directory %s\n",
 281                                         solib->name);
 282                                 return -1;
 283                         }
 284                 } else {
 285                         RTE_LOG(DEBUG, EAL, "open shared lib %s\n",
 286                                 solib->name);
 287                         solib->lib_handle = dlopen(solib->name, RTLD_NOW);
 288                         if (solib->lib_handle == NULL) {
 289                                 RTE_LOG(ERR, EAL, "%s\n", dlerror());
 290                                 return -1;
 291                         }
 292                 }
 293
 294         }
 295         return 0;
 296 }
 297
 298 /*
 299  * Parse the coremask given as argument (hexadecimal string) and fill
 300  * the global configuration (core role and core count) with the parsed
 301  * value.
 302  */
 303 static int xdigit2val(unsigned char c)
 304 {
 305         int val;
 306
 307         if (isdigit(c))
 308                 val = c - '0';
 309         else if (isupper(c))
 310                 val = c - 'A' + 10;
 311         else
 312                 val = c - 'a' + 10;
 313         return val;
 314 }
 315
 316 static int
 317 eal_parse_service_coremask(const char *coremask)
 318 {
 319         struct rte_config *cfg = rte_eal_get_configuration();
 320         int i, j, idx = 0;
 321         unsigned int count = 0;
 322         char c;
 323         int val;
 324
 325         if (coremask == NULL)
 326                 return -1;
 327         /* Remove all blank characters ahead and after .
 328          * Remove 0x/0X if exists.
 329          */
 330         while (isblank(*coremask))
 331                 coremask++;
 332         if (coremask[0] == '0' && ((coremask[1] == 'x')
 333                 || (coremask[1] == 'X')))
 334                 coremask += 2;
 335         i = strlen(coremask);
 336         while ((i > 0) && isblank(coremask[i - 1]))
 337                 i--;
 338
 339         if (i == 0)
 340                 return -1;
 341
 342         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 343                 c = coremask[i];
 344                 if (isxdigit(c) == 0) {
 345                         /* invalid characters */
 346                         return -1;
 347                 }
 348                 val = xdigit2val(c);
 349                 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE;
 350                                 j++, idx++) {
 351                         if ((1 << j) & val) {
 352                                 /* handle master lcore already parsed */
 353                                 uint32_t lcore = idx;
 354                                 if (master_lcore_parsed &&
 355                                                 cfg->master_lcore == lcore) {
 356                                         RTE_LOG(ERR, EAL,
 357                                                 "Error: lcore %u is master lcore, cannot use as service core\n",
 358                                                 idx);
 359                                         return -1;
 360                                 }
 361
 362                                 if (!lcore_config[idx].detected) {
 363                                         RTE_LOG(ERR, EAL,
 364                                                 "lcore %u unavailable\n", idx);
 365                                         return -1;
 366                                 }
 367                                 lcore_config[idx].core_role = ROLE_SERVICE;
 368                                 count++;
 369                         }
 370                 }
 371         }
 372
 373         for (; i >= 0; i--)
 374                 if (coremask[i] != '0')
 375                         return -1;
 376
 377         for (; idx < RTE_MAX_LCORE; idx++)
 378                 lcore_config[idx].core_index = -1;
 379
 380         if (count == 0)
 381                 return -1;
 382
 383         cfg->service_lcore_count = count;
 384         return 0;
 385 }
 386
 387 static int
 388 eal_parse_coremask(const char *coremask)
 389 {
 390         struct rte_config *cfg = rte_eal_get_configuration();
 391         int i, j, idx = 0;
 392         unsigned count = 0;
 393         char c;
 394         int val;
 395
 396         if (coremask == NULL)
 397                 return -1;
 398         /* Remove all blank characters ahead and after .
 399          * Remove 0x/0X if exists.
 400          */
 401         while (isblank(*coremask))
 402                 coremask++;
 403         if (coremask[0] == '0' && ((coremask[1] == 'x')
 404                 || (coremask[1] == 'X')))
 405                 coremask += 2;
 406         i = strlen(coremask);
 407         while ((i > 0) && isblank(coremask[i - 1]))
 408                 i--;
 409         if (i == 0)
 410                 return -1;
 411
 412         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 413                 c = coremask[i];
 414                 if (isxdigit(c) == 0) {
 415                         /* invalid characters */
 416                         return -1;
 417                 }
 418                 val = xdigit2val(c);
 419                 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++)
 420                 {
 421                         if ((1 << j) & val) {
 422                                 if (!lcore_config[idx].detected) {
 423                                         RTE_LOG(ERR, EAL, "lcore %u "
 424                                                 "unavailable\n", idx);
 425                                         return -1;
 426                                 }
 427                                 cfg->lcore_role[idx] = ROLE_RTE;
 428                                 lcore_config[idx].core_index = count;
 429                                 count++;
 430                         } else {
 431                                 cfg->lcore_role[idx] = ROLE_OFF;
 432                                 lcore_config[idx].core_index = -1;
 433                         }
 434                 }
 435         }
 436         for (; i >= 0; i--)
 437                 if (coremask[i] != '0')
 438                         return -1;
 439         for (; idx < RTE_MAX_LCORE; idx++) {
 440                 cfg->lcore_role[idx] = ROLE_OFF;
 441                 lcore_config[idx].core_index = -1;
 442         }
 443         if (count == 0)
 444                 return -1;
 445         /* Update the count of enabled logical cores of the EAL configuration */
 446         cfg->lcore_count = count;
 447         return 0;
 448 }
 449
 450 static int
 451 eal_parse_service_corelist(const char *corelist)
 452 {
 453         struct rte_config *cfg = rte_eal_get_configuration();
 454         int i, idx = 0;
 455         unsigned count = 0;
 456         char *end = NULL;
 457         int min, max;
 458
 459         if (corelist == NULL)
 460                 return -1;
 461
 462         /* Remove all blank characters ahead and after */
 463         while (isblank(*corelist))
 464                 corelist++;
 465         i = strlen(corelist);
 466         while ((i > 0) && isblank(corelist[i - 1]))
 467                 i--;
 468
 469         /* Get list of cores */
 470         min = RTE_MAX_LCORE;
 471         do {
 472                 while (isblank(*corelist))
 473                         corelist++;
 474                 if (*corelist == '\0')
 475                         return -1;
 476                 errno = 0;
 477                 idx = strtoul(corelist, &end, 10);
 478                 if (errno || end == NULL)
 479                         return -1;
 480                 while (isblank(*end))
 481                         end++;
 482                 if (*end == '-') {
 483                         min = idx;
 484                 } else if ((*end == ',') || (*end == '\0')) {
 485                         max = idx;
 486                         if (min == RTE_MAX_LCORE)
 487                                 min = idx;
 488                         for (idx = min; idx <= max; idx++) {
 489                                 if (cfg->lcore_role[idx] != ROLE_SERVICE) {
 490                                         /* handle master lcore already parsed */
 491                                         uint32_t lcore = idx;
 492                                         if (cfg->master_lcore == lcore &&
 493                                                         master_lcore_parsed) {
 494                                                 RTE_LOG(ERR, EAL,
 495                                                         "Error: lcore %u is master lcore, cannot use as service core\n",
 496                                                         idx);
 497                                                 return -1;
 498                                         }
 499                                         lcore_config[idx].core_role =
 500                                                         ROLE_SERVICE;
 501                                         count++;
 502                                 }
 503                         }
 504                         min = RTE_MAX_LCORE;
 505                 } else
 506                         return -1;
 507                 corelist = end + 1;
 508         } while (*end != '\0');
 509
 510         if (count == 0)
 511                 return -1;
 512
 513         return 0;
 514 }
 515
 516 static int
 517 eal_parse_corelist(const char *corelist)
 518 {
 519         struct rte_config *cfg = rte_eal_get_configuration();
 520         int i, idx = 0;
 521         unsigned count = 0;
 522         char *end = NULL;
 523         int min, max;
 524
 525         if (corelist == NULL)
 526                 return -1;
 527
 528         /* Remove all blank characters ahead and after */
 529         while (isblank(*corelist))
 530                 corelist++;
 531         i = strlen(corelist);
 532         while ((i > 0) && isblank(corelist[i - 1]))
 533                 i--;
 534
 535         /* Reset config */
 536         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 537                 cfg->lcore_role[idx] = ROLE_OFF;
 538                 lcore_config[idx].core_index = -1;
 539         }
 540
 541         /* Get list of cores */
 542         min = RTE_MAX_LCORE;
 543         do {
 544                 while (isblank(*corelist))
 545                         corelist++;
 546                 if (*corelist == '\0')
 547                         return -1;
 548                 errno = 0;
 549                 idx = strtoul(corelist, &end, 10);
 550                 if (errno || end == NULL)
 551                         return -1;
 552                 while (isblank(*end))
 553                         end++;
 554                 if (*end == '-') {
 555                         min = idx;
 556                 } else if ((*end == ',') || (*end == '\0')) {
 557                         max = idx;
 558                         if (min == RTE_MAX_LCORE)
 559                                 min = idx;
 560                         for (idx = min; idx <= max; idx++) {
 561                                 if (cfg->lcore_role[idx] != ROLE_RTE) {
 562                                         cfg->lcore_role[idx] = ROLE_RTE;
 563                                         lcore_config[idx].core_index = count;
 564                                         count++;
 565                                 }
 566                         }
 567                         min = RTE_MAX_LCORE;
 568                 } else
 569                         return -1;
 570                 corelist = end + 1;
 571         } while (*end != '\0');
 572
 573         if (count == 0)
 574                 return -1;
 575
 576         /* Update the count of enabled logical cores of the EAL configuration */
 577         cfg->lcore_count = count;
 578
 579         return 0;
 580 }
 581
 582 /* Changes the lcore id of the master thread */
 583 static int
 584 eal_parse_master_lcore(const char *arg)
 585 {
 586         char *parsing_end;
 587         struct rte_config *cfg = rte_eal_get_configuration();
 588
 589         errno = 0;
 590         cfg->master_lcore = (uint32_t) strtol(arg, &parsing_end, 0);
 591         if (errno || parsing_end[0] != 0)
 592                 return -1;
 593         if (cfg->master_lcore >= RTE_MAX_LCORE)
 594                 return -1;
 595         master_lcore_parsed = 1;
 596
 597         /* ensure master core is not used as service core */
 598         if (lcore_config[cfg->master_lcore].core_role == ROLE_SERVICE) {
 599                 RTE_LOG(ERR, EAL, "Error: Master lcore is used as a service core.\n");
 600                 return -1;
 601         }
 602
 603         return 0;
 604 }
 605
 606 /*
 607  * Parse elem, the elem could be single number/range or '(' ')' group
 608  * 1) A single number elem, it's just a simple digit. e.g. 9
 609  * 2) A single range elem, two digits with a '-' between. e.g. 2-6
 610  * 3) A group elem, combines multiple 1) or 2) with '( )'. e.g (0,2-4,6)
 611  *    Within group elem, '-' used for a range separator;
 612  *                       ',' used for a single number.
 613  */
 614 static int
 615 eal_parse_set(const char *input, uint16_t set[], unsigned num)
 616 {
 617         unsigned idx;
 618         const char *str = input;
 619         char *end = NULL;
 620         unsigned min, max;
 621
 622         memset(set, 0, num * sizeof(uint16_t));
 623
 624         while (isblank(*str))
 625                 str++;
 626
 627         /* only digit or left bracket is qualify for start point */
 628         if ((!isdigit(*str) && *str != '(') || *str == '\0')
 629                 return -1;
 630
 631         /* process single number or single range of number */
 632         if (*str != '(') {
 633                 errno = 0;
 634                 idx = strtoul(str, &end, 10);
 635                 if (errno || end == NULL || idx >= num)
 636                         return -1;
 637                 else {
 638                         while (isblank(*end))
 639                                 end++;
 640
 641                         min = idx;
 642                         max = idx;
 643                         if (*end == '-') {
 644                                 /* process single <number>-<number> */
 645                                 end++;
 646                                 while (isblank(*end))
 647                                         end++;
 648                                 if (!isdigit(*end))
 649                                         return -1;
 650
 651                                 errno = 0;
 652                                 idx = strtoul(end, &end, 10);
 653                                 if (errno || end == NULL || idx >= num)
 654                                         return -1;
 655                                 max = idx;
 656                                 while (isblank(*end))
 657                                         end++;
 658                                 if (*end != ',' && *end != '\0')
 659                                         return -1;
 660                         }
 661
 662                         if (*end != ',' && *end != '\0' &&
 663                             *end != '@')
 664                                 return -1;
 665
 666                         for (idx = RTE_MIN(min, max);
 667                              idx <= RTE_MAX(min, max); idx++)
 668                                 set[idx] = 1;
 669
 670                         return end - input;
 671                 }
 672         }
 673
 674         /* process set within bracket */
 675         str++;
 676         while (isblank(*str))
 677                 str++;
 678         if (*str == '\0')
 679                 return -1;
 680
 681         min = RTE_MAX_LCORE;
 682         do {
 683
 684                 /* go ahead to the first digit */
 685                 while (isblank(*str))
 686                         str++;
 687                 if (!isdigit(*str))
 688                         return -1;
 689
 690                 /* get the digit value */
 691                 errno = 0;
 692                 idx = strtoul(str, &end, 10);
 693                 if (errno || end == NULL || idx >= num)
 694                         return -1;
 695
 696                 /* go ahead to separator '-',',' and ')' */
 697                 while (isblank(*end))
 698                         end++;
 699                 if (*end == '-') {
 700                         if (min == RTE_MAX_LCORE)
 701                                 min = idx;
 702                         else /* avoid continuous '-' */
 703                                 return -1;
 704                 } else if ((*end == ',') || (*end == ')')) {
 705                         max = idx;
 706                         if (min == RTE_MAX_LCORE)
 707                                 min = idx;
 708                         for (idx = RTE_MIN(min, max);
 709                              idx <= RTE_MAX(min, max); idx++)
 710                                 set[idx] = 1;
 711
 712                         min = RTE_MAX_LCORE;
 713                 } else
 714                         return -1;
 715
 716                 str = end + 1;
 717         } while (*end != '\0' && *end != ')');
 718
 719         /*
 720          * to avoid failure that tail blank makes end character check fail
 721          * in eal_parse_lcores( )
 722          */
 723         while (isblank(*str))
 724                 str++;
 725
 726         return str - input;
 727 }
 728
 729 /* convert from set array to cpuset bitmap */
 730 static int
 731 convert_to_cpuset(rte_cpuset_t *cpusetp,
 732               uint16_t *set, unsigned num)
 733 {
 734         unsigned idx;
 735
 736         CPU_ZERO(cpusetp);
 737
 738         for (idx = 0; idx < num; idx++) {
 739                 if (!set[idx])
 740                         continue;
 741
 742                 if (!lcore_config[idx].detected) {
 743                         RTE_LOG(ERR, EAL, "core %u "
 744                                 "unavailable\n", idx);
 745                         return -1;
 746                 }
 747
 748                 CPU_SET(idx, cpusetp);
 749         }
 750
 751         return 0;
 752 }
 753
 754 /*
 755  * The format pattern: --lcores='<lcores[@cpus]>[<,lcores[@cpus]>...]'
 756  * lcores, cpus could be a single digit/range or a group.
 757  * '(' and ')' are necessary if it's a group.
 758  * If not supply '@cpus', the value of cpus uses the same as lcores.
 759  * e.g. '1,2@(5-7),(3-5)@(0,2),(0,6),7-8' means start 9 EAL thread as below
 760  *   lcore 0 runs on cpuset 0x41 (cpu 0,6)
 761  *   lcore 1 runs on cpuset 0x2 (cpu 1)
 762  *   lcore 2 runs on cpuset 0xe0 (cpu 5,6,7)
 763  *   lcore 3,4,5 runs on cpuset 0x5 (cpu 0,2)
 764  *   lcore 6 runs on cpuset 0x41 (cpu 0,6)
 765  *   lcore 7 runs on cpuset 0x80 (cpu 7)
 766  *   lcore 8 runs on cpuset 0x100 (cpu 8)
 767  */
 768 static int
 769 eal_parse_lcores(const char *lcores)
 770 {
 771         struct rte_config *cfg = rte_eal_get_configuration();
 772         static uint16_t set[RTE_MAX_LCORE];
 773         unsigned idx = 0;
 774         unsigned count = 0;
 775         const char *lcore_start = NULL;
 776         const char *end = NULL;
 777         int offset;
 778         rte_cpuset_t cpuset;
 779         int lflags;
 780         int ret = -1;
 781
 782         if (lcores == NULL)
 783                 return -1;
 784
 785         /* Remove all blank characters ahead and after */
 786         while (isblank(*lcores))
 787                 lcores++;
 788
 789         CPU_ZERO(&cpuset);
 790
 791         /* Reset lcore config */
 792         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 793                 cfg->lcore_role[idx] = ROLE_OFF;
 794                 lcore_config[idx].core_index = -1;
 795                 CPU_ZERO(&lcore_config[idx].cpuset);
 796         }
 797
 798         /* Get list of cores */
 799         do {
 800                 while (isblank(*lcores))
 801                         lcores++;
 802                 if (*lcores == '\0')
 803                         goto err;
 804
 805                 lflags = 0;
 806
 807                 /* record lcore_set start point */
 808                 lcore_start = lcores;
 809
 810                 /* go across a complete bracket */
 811                 if (*lcore_start == '(') {
 812                         lcores += strcspn(lcores, ")");
 813                         if (*lcores++ == '\0')
 814                                 goto err;
 815                 }
 816
 817                 /* scan the separator '@', ','(next) or '\0'(finish) */
 818                 lcores += strcspn(lcores, "@,");
 819
 820                 if (*lcores == '@') {
 821                         /* explicit assign cpu_set */
 822                         offset = eal_parse_set(lcores + 1, set, RTE_DIM(set));
 823                         if (offset < 0)
 824                                 goto err;
 825
 826                         /* prepare cpu_set and update the end cursor */
 827                         if (0 > convert_to_cpuset(&cpuset,
 828                                                   set, RTE_DIM(set)))
 829                                 goto err;
 830                         end = lcores + 1 + offset;
 831                 } else { /* ',' or '\0' */
 832                         /* haven't given cpu_set, current loop done */
 833                         end = lcores;
 834
 835                         /* go back to check <number>-<number> */
 836                         offset = strcspn(lcore_start, "(-");
 837                         if (offset < (end - lcore_start) &&
 838                             *(lcore_start + offset) != '(')
 839                                 lflags = 1;
 840                 }
 841
 842                 if (*end != ',' && *end != '\0')
 843                         goto err;
 844
 845                 /* parse lcore_set from start point */
 846                 if (0 > eal_parse_set(lcore_start, set, RTE_DIM(set)))
 847                         goto err;
 848
 849                 /* without '@', by default using lcore_set as cpu_set */
 850                 if (*lcores != '@' &&
 851                     0 > convert_to_cpuset(&cpuset, set, RTE_DIM(set)))
 852                         goto err;
 853
 854                 /* start to update lcore_set */
 855                 for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 856                         if (!set[idx])
 857                                 continue;
 858
 859                         if (cfg->lcore_role[idx] != ROLE_RTE) {
 860                                 lcore_config[idx].core_index = count;
 861                                 cfg->lcore_role[idx] = ROLE_RTE;
 862                                 count++;
 863                         }
 864
 865                         if (lflags) {
 866                                 CPU_ZERO(&cpuset);
 867                                 CPU_SET(idx, &cpuset);
 868                         }
 869                         rte_memcpy(&lcore_config[idx].cpuset, &cpuset,
 870                                    sizeof(rte_cpuset_t));
 871                 }
 872
 873                 lcores = end + 1;
 874         } while (*end != '\0');
 875
 876         if (count == 0)
 877                 goto err;
 878
 879         cfg->lcore_count = count;
 880         ret = 0;
 881
 882 err:
 883
 884         return ret;
 885 }
 886
 887 static int
 888 eal_parse_syslog(const char *facility, struct internal_config *conf)
 889 {
 890         int i;
 891         static const struct {
 892                 const char *name;
 893                 int value;
 894         } map[] = {
 895                 { "auth", LOG_AUTH },
 896                 { "cron", LOG_CRON },
 897                 { "daemon", LOG_DAEMON },
 898                 { "ftp", LOG_FTP },
 899                 { "kern", LOG_KERN },
 900                 { "lpr", LOG_LPR },
 901                 { "mail", LOG_MAIL },
 902                 { "news", LOG_NEWS },
 903                 { "syslog", LOG_SYSLOG },
 904                 { "user", LOG_USER },
 905                 { "uucp", LOG_UUCP },
 906                 { "local0", LOG_LOCAL0 },
 907                 { "local1", LOG_LOCAL1 },
 908                 { "local2", LOG_LOCAL2 },
 909                 { "local3", LOG_LOCAL3 },
 910                 { "local4", LOG_LOCAL4 },
 911                 { "local5", LOG_LOCAL5 },
 912                 { "local6", LOG_LOCAL6 },
 913                 { "local7", LOG_LOCAL7 },
 914                 { NULL, 0 }
 915         };
 916
 917         for (i = 0; map[i].name; i++) {
 918                 if (!strcmp(facility, map[i].name)) {
 919                         conf->syslog_facility = map[i].value;
 920                         return 0;
 921                 }
 922         }
 923         return -1;
 924 }
 925
 926 static int
 927 eal_parse_log_priority(const char *level)
 928 {
 929         static const char * const levels[] = {
 930                 [RTE_LOG_EMERG]   = "emergency",
 931                 [RTE_LOG_ALERT]   = "alert",
 932                 [RTE_LOG_CRIT]    = "critical",
 933                 [RTE_LOG_ERR]     = "error",
 934                 [RTE_LOG_WARNING] = "warning",
 935                 [RTE_LOG_NOTICE]  = "notice",
 936                 [RTE_LOG_INFO]    = "info",
 937                 [RTE_LOG_DEBUG]   = "debug",
 938         };
 939         size_t len = strlen(level);
 940         unsigned long tmp;
 941         char *end;
 942         unsigned int i;
 943
 944         if (len == 0)
 945                 return -1;
 946
 947         /* look for named values, skip 0 which is not a valid level */
 948         for (i = 1; i < RTE_DIM(levels); i++) {
 949                 if (strncmp(levels[i], level, len) == 0)
 950                         return i;
 951         }
 952
 953         /* not a string, maybe it is numeric */
 954         errno = 0;
 955         tmp = strtoul(level, &end, 0);
 956
 957         /* check for errors */
 958         if (errno != 0 || end == NULL || *end != '\0' ||
 959             tmp >= UINT32_MAX)
 960                 return -1;
 961
 962         return tmp;
 963 }
 964
 965 static int
 966 eal_parse_log_level(const char *arg)
 967 {
 968         const char *pattern = NULL;
 969         const char *regex = NULL;
 970         char *str, *level;
 971         int priority;
 972
 973         str = strdup(arg);
 974         if (str == NULL)
 975                 return -1;
 976
 977         if ((level = strchr(str, ','))) {
 978                 regex = str;
 979                 *level++ = '\0';
 980         } else if ((level = strchr(str, ':'))) {
 981                 pattern = str;
 982                 *level++ = '\0';
 983         } else {
 984                 level = str;
 985         }
 986
 987         priority = eal_parse_log_priority(level);
 988         if (priority < 0) {
 989                 fprintf(stderr, "invalid log priority: %s\n", level);
 990                 goto fail;
 991         }
 992
 993         if (regex) {
 994                 if (rte_log_set_level_regexp(regex, priority) < 0) {
 995                         fprintf(stderr, "cannot set log level %s,%d\n",
 996                                 pattern, priority);
 997                         goto fail;
 998                 }
 999                 if (rte_log_save_regexp(regex, priority) < 0)
1000                         goto fail;
1001         } else if (pattern) {
1002                 if (rte_log_set_level_pattern(pattern, priority) < 0) {
1003                         fprintf(stderr, "cannot set log level %s:%d\n",
1004                                 pattern, priority);
1005                         goto fail;
1006                 }
1007                 if (rte_log_save_pattern(pattern, priority) < 0)
1008                         goto fail;
1009         } else {
1010                 rte_log_set_global_level(priority);
1011         }
1012
1013         free(str);
1014         return 0;
1015
1016 fail:
1017         free(str);
1018         return -1;
1019 }
1020
1021 static enum rte_proc_type_t
1022 eal_parse_proc_type(const char *arg)
1023 {
1024         if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
1025                 return RTE_PROC_PRIMARY;
1026         if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
1027                 return RTE_PROC_SECONDARY;
1028         if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
1029                 return RTE_PROC_AUTO;
1030
1031         return RTE_PROC_INVALID;
1032 }
1033
1034 int
1035 eal_parse_common_option(int opt, const char *optarg,
1036                         struct internal_config *conf)
1037 {
1038         static int b_used;
1039         static int w_used;
1040
1041         switch (opt) {
1042         /* blacklist */
1043         case 'b':
1044                 if (w_used)
1045                         goto bw_used;
1046                 if (eal_option_device_add(RTE_DEVTYPE_BLACKLISTED_PCI,
1047                                 optarg) < 0) {
1048                         return -1;
1049                 }
1050                 b_used = 1;
1051                 break;
1052         /* whitelist */
1053         case 'w':
1054                 if (b_used)
1055                         goto bw_used;
1056                 if (eal_option_device_add(RTE_DEVTYPE_WHITELISTED_PCI,
1057                                 optarg) < 0) {
1058                         return -1;
1059                 }
1060                 w_used = 1;
1061                 break;
1062         /* coremask */
1063         case 'c':
1064                 if (eal_parse_coremask(optarg) < 0) {
1065                         RTE_LOG(ERR, EAL, "invalid coremask\n");
1066                         return -1;
1067                 }
1068
1069                 if (core_parsed) {
1070                         RTE_LOG(ERR, EAL, "Option -c is ignored, because (%s) is set!\n",
1071                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1072                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1073                                 "-c");
1074                         return -1;
1075                 }
1076
1077                 core_parsed = LCORE_OPT_MSK;
1078                 break;
1079         /* corelist */
1080         case 'l':
1081                 if (eal_parse_corelist(optarg) < 0) {
1082                         RTE_LOG(ERR, EAL, "invalid core list\n");
1083                         return -1;
1084                 }
1085
1086                 if (core_parsed) {
1087                         RTE_LOG(ERR, EAL, "Option -l is ignored, because (%s) is set!\n",
1088                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1089                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1090                                 "-l");
1091                         return -1;
1092                 }
1093
1094                 core_parsed = LCORE_OPT_LST;
1095                 break;
1096         /* service coremask */
1097         case 's':
1098                 if (eal_parse_service_coremask(optarg) < 0) {
1099                         RTE_LOG(ERR, EAL, "invalid service coremask\n");
1100                         return -1;
1101                 }
1102                 break;
1103         /* service corelist */
1104         case 'S':
1105                 if (eal_parse_service_corelist(optarg) < 0) {
1106                         RTE_LOG(ERR, EAL, "invalid service core list\n");
1107                         return -1;
1108                 }
1109                 break;
1110         /* size of memory */
1111         case 'm':
1112                 conf->memory = atoi(optarg);
1113                 conf->memory *= 1024ULL;
1114                 conf->memory *= 1024ULL;
1115                 mem_parsed = 1;
1116                 break;
1117         /* force number of channels */
1118         case 'n':
1119                 conf->force_nchannel = atoi(optarg);
1120                 if (conf->force_nchannel == 0) {
1121                         RTE_LOG(ERR, EAL, "invalid channel number\n");
1122                         return -1;
1123                 }
1124                 break;
1125         /* force number of ranks */
1126         case 'r':
1127                 conf->force_nrank = atoi(optarg);
1128                 if (conf->force_nrank == 0 ||
1129                     conf->force_nrank > 16) {
1130                         RTE_LOG(ERR, EAL, "invalid rank number\n");
1131                         return -1;
1132                 }
1133                 break;
1134         /* force loading of external driver */
1135         case 'd':
1136                 if (eal_plugin_add(optarg) == -1)
1137                         return -1;
1138                 break;
1139         case 'v':
1140                 /* since message is explicitly requested by user, we
1141                  * write message at highest log level so it can always
1142                  * be seen
1143                  * even if info or warning messages are disabled */
1144                 RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
1145                 break;
1146
1147         /* long options */
1148         case OPT_HUGE_UNLINK_NUM:
1149                 conf->hugepage_unlink = 1;
1150                 break;
1151
1152         case OPT_NO_HUGE_NUM:
1153                 conf->no_hugetlbfs = 1;
1154                 /* no-huge is legacy mem */
1155                 conf->legacy_mem = 1;
1156                 break;
1157
1158         case OPT_NO_PCI_NUM:
1159                 conf->no_pci = 1;
1160                 break;
1161
1162         case OPT_NO_HPET_NUM:
1163                 conf->no_hpet = 1;
1164                 break;
1165
1166         case OPT_VMWARE_TSC_MAP_NUM:
1167                 conf->vmware_tsc_map = 1;
1168                 break;
1169
1170         case OPT_NO_SHCONF_NUM:
1171                 conf->no_shconf = 1;
1172                 break;
1173
1174         case OPT_IN_MEMORY_NUM:
1175                 conf->in_memory = 1;
1176                 /* in-memory is a superset of noshconf and huge-unlink */
1177                 conf->no_shconf = 1;
1178                 conf->hugepage_unlink = 1;
1179                 break;
1180
1181         case OPT_PROC_TYPE_NUM:
1182                 conf->process_type = eal_parse_proc_type(optarg);
1183                 break;
1184
1185         case OPT_MASTER_LCORE_NUM:
1186                 if (eal_parse_master_lcore(optarg) < 0) {
1187                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1188                                         OPT_MASTER_LCORE "\n");
1189                         return -1;
1190                 }
1191                 break;
1192
1193         case OPT_VDEV_NUM:
1194                 if (eal_option_device_add(RTE_DEVTYPE_VIRTUAL,
1195                                 optarg) < 0) {
1196                         return -1;
1197                 }
1198                 break;
1199
1200         case OPT_SYSLOG_NUM:
1201                 if (eal_parse_syslog(optarg, conf) < 0) {
1202                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1203                                         OPT_SYSLOG "\n");
1204                         return -1;
1205                 }
1206                 break;
1207
1208         case OPT_LOG_LEVEL_NUM: {
1209                 if (eal_parse_log_level(optarg) < 0) {
1210                         RTE_LOG(ERR, EAL,
1211                                 "invalid parameters for --"
1212                                 OPT_LOG_LEVEL "\n");
1213                         return -1;
1214                 }
1215                 break;
1216         }
1217         case OPT_LCORES_NUM:
1218                 if (eal_parse_lcores(optarg) < 0) {
1219                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1220                                 OPT_LCORES "\n");
1221                         return -1;
1222                 }
1223
1224                 if (core_parsed) {
1225                         RTE_LOG(ERR, EAL, "Option --lcore is ignored, because (%s) is set!\n",
1226                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1227                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1228                                 "--lcore");
1229                         return -1;
1230                 }
1231
1232                 core_parsed = LCORE_OPT_MAP;
1233                 break;
1234         case OPT_LEGACY_MEM_NUM:
1235                 conf->legacy_mem = 1;
1236                 break;
1237         case OPT_SINGLE_FILE_SEGMENTS_NUM:
1238                 conf->single_file_segments = 1;
1239                 break;
1240
1241         /* don't know what to do, leave this to caller */
1242         default:
1243                 return 1;
1244
1245         }
1246
1247         return 0;
1248 bw_used:
1249         RTE_LOG(ERR, EAL, "Options blacklist (-b) and whitelist (-w) "
1250                 "cannot be used at the same time\n");
1251         return -1;
1252 }
1253
1254 static void
1255 eal_auto_detect_cores(struct rte_config *cfg)
1256 {
1257         unsigned int lcore_id;
1258         unsigned int removed = 0;
1259         rte_cpuset_t affinity_set;
1260         pthread_t tid = pthread_self();
1261
1262         if (pthread_getaffinity_np(tid, sizeof(rte_cpuset_t),
1263                                 &affinity_set) < 0)
1264                 CPU_ZERO(&affinity_set);
1265
1266         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1267                 if (cfg->lcore_role[lcore_id] == ROLE_RTE &&
1268                     !CPU_ISSET(lcore_id, &affinity_set)) {
1269                         cfg->lcore_role[lcore_id] = ROLE_OFF;
1270                         removed++;
1271                 }
1272         }
1273
1274         cfg->lcore_count -= removed;
1275 }
1276
1277 int
1278 eal_adjust_config(struct internal_config *internal_cfg)
1279 {
1280         int i;
1281         struct rte_config *cfg = rte_eal_get_configuration();
1282
1283         if (!core_parsed)
1284                 eal_auto_detect_cores(cfg);
1285
1286         if (internal_config.process_type == RTE_PROC_AUTO)
1287                 internal_config.process_type = eal_proc_type_detect();
1288
1289         /* default master lcore is the first one */
1290         if (!master_lcore_parsed) {
1291                 cfg->master_lcore = rte_get_next_lcore(-1, 0, 0);
1292                 lcore_config[cfg->master_lcore].core_role = ROLE_RTE;
1293         }
1294
1295         /* if no memory amounts were requested, this will result in 0 and
1296          * will be overridden later, right after eal_hugepage_info_init() */
1297         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
1298                 internal_cfg->memory += internal_cfg->socket_mem[i];
1299
1300         return 0;
1301 }
1302
1303 int
1304 eal_check_common_options(struct internal_config *internal_cfg)
1305 {
1306         struct rte_config *cfg = rte_eal_get_configuration();
1307
1308         if (cfg->lcore_role[cfg->master_lcore] != ROLE_RTE) {
1309                 RTE_LOG(ERR, EAL, "Master lcore is not enabled for DPDK\n");
1310                 return -1;
1311         }
1312
1313         if (internal_cfg->process_type == RTE_PROC_INVALID) {
1314                 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
1315                 return -1;
1316         }
1317         if (index(internal_cfg->hugefile_prefix, '%') != NULL) {
1318                 RTE_LOG(ERR, EAL, "Invalid char, '%%', in --"OPT_FILE_PREFIX" "
1319                         "option\n");
1320                 return -1;
1321         }
1322         if (mem_parsed && internal_cfg->force_sockets == 1) {
1323                 RTE_LOG(ERR, EAL, "Options -m and --"OPT_SOCKET_MEM" cannot "
1324                         "be specified at the same time\n");
1325                 return -1;
1326         }
1327         if (internal_cfg->no_hugetlbfs && internal_cfg->force_sockets == 1) {
1328                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_MEM" cannot "
1329                         "be specified together with --"OPT_NO_HUGE"\n");
1330                 return -1;
1331         }
1332         if (internal_cfg->no_hugetlbfs && internal_cfg->hugepage_unlink &&
1333                         !internal_cfg->in_memory) {
1334                 RTE_LOG(ERR, EAL, "Option --"OPT_HUGE_UNLINK" cannot "
1335                         "be specified together with --"OPT_NO_HUGE"\n");
1336                 return -1;
1337         }
1338         if (internal_config.force_socket_limits && internal_config.legacy_mem) {
1339                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_LIMIT
1340                         " is only supported in non-legacy memory mode\n");
1341         }
1342         if (internal_cfg->single_file_segments &&
1343                         internal_cfg->hugepage_unlink) {
1344                 RTE_LOG(ERR, EAL, "Option --"OPT_SINGLE_FILE_SEGMENTS" is "
1345                         "not compatible with neither --"OPT_IN_MEMORY" nor "
1346                         "--"OPT_HUGE_UNLINK"\n");
1347                 return -1;
1348         }
1349
1350         return 0;
1351 }
1352
1353 void
1354 eal_common_usage(void)
1355 {
1356         printf("[options]\n\n"
1357                "EAL common options:\n"
1358                "  -c COREMASK         Hexadecimal bitmask of cores to run on\n"
1359                "  -l CORELIST         List of cores to run on\n"
1360                "                      The argument format is <c1>[-c2][,c3[-c4],...]\n"
1361                "                      where c1, c2, etc are core indexes between 0 and %d\n"
1362                "  --"OPT_LCORES" COREMAP    Map lcore set to physical cpu set\n"
1363                "                      The argument format is\n"
1364                "                            '<lcores[@cpus]>[<,lcores[@cpus]>...]'\n"
1365                "                      lcores and cpus list are grouped by '(' and ')'\n"
1366                "                      Within the group, '-' is used for range separator,\n"
1367                "                      ',' is used for single number separator.\n"
1368                "                      '( )' can be omitted for single element group,\n"
1369                "                      '@' can be omitted if cpus and lcores have the same value\n"
1370                "  -s SERVICE COREMASK Hexadecimal bitmask of cores to be used as service cores\n"
1371                "  --"OPT_MASTER_LCORE" ID   Core ID that is used as master\n"
1372                "  --"OPT_MBUF_POOL_OPS_NAME" Pool ops name for mbuf to use\n"
1373                "  -n CHANNELS         Number of memory channels\n"
1374                "  -m MB               Memory to allocate (see also --"OPT_SOCKET_MEM")\n"
1375                "  -r RANKS            Force number of memory ranks (don't detect)\n"
1376                "  -b, --"OPT_PCI_BLACKLIST" Add a PCI device in black list.\n"
1377                "                      Prevent EAL from using this PCI device. The argument\n"
1378                "                      format is <domain:bus:devid.func>.\n"
1379                "  -w, --"OPT_PCI_WHITELIST" Add a PCI device in white list.\n"
1380                "                      Only use the specified PCI devices. The argument format\n"
1381                "                      is <[domain:]bus:devid.func>. This option can be present\n"
1382                "                      several times (once per device).\n"
1383                "                      [NOTE: PCI whitelist cannot be used with -b option]\n"
1384                "  --"OPT_VDEV"              Add a virtual device.\n"
1385                "                      The argument format is <driver><id>[,key=val,...]\n"
1386                "                      (ex: --vdev=net_pcap0,iface=eth2).\n"
1387                "  -d LIB.so|DIR       Add a driver or driver directory\n"
1388                "                      (can be used multiple times)\n"
1389                "  --"OPT_VMWARE_TSC_MAP"    Use VMware TSC map instead of native RDTSC\n"
1390                "  --"OPT_PROC_TYPE"         Type of this process (primary|secondary|auto)\n"
1391                "  --"OPT_SYSLOG"            Set syslog facility\n"
1392                "  --"OPT_LOG_LEVEL"=<int>   Set global log level\n"
1393                "  --"OPT_LOG_LEVEL"=<type-match>:<int>\n"
1394                "                      Set specific log level\n"
1395                "  -v                  Display version information on startup\n"
1396                "  -h, --help          This help\n"
1397                "  --"OPT_IN_MEMORY"   Operate entirely in memory. This will\n"
1398                "                      disable secondary process support\n"
1399                "\nEAL options for DEBUG use only:\n"
1400                "  --"OPT_HUGE_UNLINK"       Unlink hugepage files after init\n"
1401                "  --"OPT_NO_HUGE"           Use malloc instead of hugetlbfs\n"
1402                "  --"OPT_NO_PCI"            Disable PCI\n"
1403                "  --"OPT_NO_HPET"           Disable HPET\n"
1404                "  --"OPT_NO_SHCONF"         No shared config (mmap'd files)\n"
1405                "\n", RTE_MAX_LCORE);
1406 }