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