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