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_IOVA_MODE,         1, NULL, OPT_IOVA_MODE_NUM        },
  62         {OPT_LCORES,            1, NULL, OPT_LCORES_NUM           },
  63         {OPT_LOG_LEVEL,         1, NULL, OPT_LOG_LEVEL_NUM        },
  64         {OPT_MASTER_LCORE,      1, NULL, OPT_MASTER_LCORE_NUM     },
  65         {OPT_MBUF_POOL_OPS_NAME, 1, NULL, OPT_MBUF_POOL_OPS_NAME_NUM},
  66         {OPT_NO_HPET,           0, NULL, OPT_NO_HPET_NUM          },
  67         {OPT_NO_HUGE,           0, NULL, OPT_NO_HUGE_NUM          },
  68         {OPT_NO_PCI,            0, NULL, OPT_NO_PCI_NUM           },
  69         {OPT_NO_SHCONF,         0, NULL, OPT_NO_SHCONF_NUM        },
  70         {OPT_IN_MEMORY,         0, NULL, OPT_IN_MEMORY_NUM        },
  71         {OPT_PCI_BLACKLIST,     1, NULL, OPT_PCI_BLACKLIST_NUM    },
  72         {OPT_PCI_WHITELIST,     1, NULL, OPT_PCI_WHITELIST_NUM    },
  73         {OPT_PROC_TYPE,         1, NULL, OPT_PROC_TYPE_NUM        },
  74         {OPT_SOCKET_MEM,        1, NULL, OPT_SOCKET_MEM_NUM       },
  75         {OPT_SOCKET_LIMIT,      1, NULL, OPT_SOCKET_LIMIT_NUM     },
  76         {OPT_SYSLOG,            1, NULL, OPT_SYSLOG_NUM           },
  77         {OPT_VDEV,              1, NULL, OPT_VDEV_NUM             },
  78         {OPT_VFIO_INTR,         1, NULL, OPT_VFIO_INTR_NUM        },
  79         {OPT_VMWARE_TSC_MAP,    0, NULL, OPT_VMWARE_TSC_MAP_NUM   },
  80         {OPT_LEGACY_MEM,        0, NULL, OPT_LEGACY_MEM_NUM       },
  81         {OPT_SINGLE_FILE_SEGMENTS, 0, NULL, OPT_SINGLE_FILE_SEGMENTS_NUM},
  82         {0,                     0, NULL, 0                        }
  83 };
  84
  85 TAILQ_HEAD(shared_driver_list, shared_driver);
  86
  87 /* Definition for shared object drivers. */
  88 struct shared_driver {
  89         TAILQ_ENTRY(shared_driver) next;
  90
  91         char    name[PATH_MAX];
  92         void*   lib_handle;
  93 };
  94
  95 /* List of external loadable drivers */
  96 static struct shared_driver_list solib_list =
  97 TAILQ_HEAD_INITIALIZER(solib_list);
  98
  99 /* Default path of external loadable drivers */
 100 static const char *default_solib_dir = RTE_EAL_PMD_PATH;
 101
 102 /*
 103  * Stringified version of solib path used by dpdk-pmdinfo.py
 104  * Note: PLEASE DO NOT ALTER THIS without making a corresponding
 105  * change to usertools/dpdk-pmdinfo.py
 106  */
 107 static const char dpdk_solib_path[] __attribute__((used)) =
 108 "DPDK_PLUGIN_PATH=" RTE_EAL_PMD_PATH;
 109
 110 TAILQ_HEAD(device_option_list, device_option);
 111
 112 struct device_option {
 113         TAILQ_ENTRY(device_option) next;
 114
 115         enum rte_devtype type;
 116         char arg[];
 117 };
 118
 119 static struct device_option_list devopt_list =
 120 TAILQ_HEAD_INITIALIZER(devopt_list);
 121
 122 static int master_lcore_parsed;
 123 static int mem_parsed;
 124 static int core_parsed;
 125
 126 static int
 127 eal_option_device_add(enum rte_devtype type, const char *optarg)
 128 {
 129         struct device_option *devopt;
 130         size_t optlen;
 131         int ret;
 132
 133         optlen = strlen(optarg) + 1;
 134         devopt = calloc(1, sizeof(*devopt) + optlen);
 135         if (devopt == NULL) {
 136                 RTE_LOG(ERR, EAL, "Unable to allocate device option\n");
 137                 return -ENOMEM;
 138         }
 139
 140         devopt->type = type;
 141         ret = snprintf(devopt->arg, optlen, "%s", optarg);
 142         if (ret < 0) {
 143                 RTE_LOG(ERR, EAL, "Unable to copy device option\n");
 144                 free(devopt);
 145                 return -EINVAL;
 146         }
 147         TAILQ_INSERT_TAIL(&devopt_list, devopt, next);
 148         return 0;
 149 }
 150
 151 int
 152 eal_option_device_parse(void)
 153 {
 154         struct device_option *devopt;
 155         void *tmp;
 156         int ret = 0;
 157
 158         TAILQ_FOREACH_SAFE(devopt, &devopt_list, next, tmp) {
 159                 if (ret == 0) {
 160                         ret = rte_devargs_add(devopt->type, devopt->arg);
 161                         if (ret)
 162                                 RTE_LOG(ERR, EAL, "Unable to parse device '%s'\n",
 163                                         devopt->arg);
 164                 }
 165                 TAILQ_REMOVE(&devopt_list, devopt, next);
 166                 free(devopt);
 167         }
 168         return ret;
 169 }
 170
 171 const char *
 172 eal_get_hugefile_prefix(void)
 173 {
 174         if (internal_config.hugefile_prefix != NULL)
 175                 return internal_config.hugefile_prefix;
 176         return HUGEFILE_PREFIX_DEFAULT;
 177 }
 178
 179 void
 180 eal_reset_internal_config(struct internal_config *internal_cfg)
 181 {
 182         int i;
 183
 184         internal_cfg->memory = 0;
 185         internal_cfg->force_nrank = 0;
 186         internal_cfg->force_nchannel = 0;
 187         internal_cfg->hugefile_prefix = NULL;
 188         internal_cfg->hugepage_dir = NULL;
 189         internal_cfg->force_sockets = 0;
 190         /* zero out the NUMA config */
 191         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 192                 internal_cfg->socket_mem[i] = 0;
 193         internal_cfg->force_socket_limits = 0;
 194         /* zero out the NUMA limits config */
 195         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 196                 internal_cfg->socket_limit[i] = 0;
 197         /* zero out hugedir descriptors */
 198         for (i = 0; i < MAX_HUGEPAGE_SIZES; i++) {
 199                 memset(&internal_cfg->hugepage_info[i], 0,
 200                                 sizeof(internal_cfg->hugepage_info[0]));
 201                 internal_cfg->hugepage_info[i].lock_descriptor = -1;
 202         }
 203         internal_cfg->base_virtaddr = 0;
 204
 205         internal_cfg->syslog_facility = LOG_DAEMON;
 206
 207         /* if set to NONE, interrupt mode is determined automatically */
 208         internal_cfg->vfio_intr_mode = RTE_INTR_MODE_NONE;
 209
 210 #ifdef RTE_LIBEAL_USE_HPET
 211         internal_cfg->no_hpet = 0;
 212 #else
 213         internal_cfg->no_hpet = 1;
 214 #endif
 215         internal_cfg->vmware_tsc_map = 0;
 216         internal_cfg->create_uio_dev = 0;
 217         internal_cfg->iova_mode = RTE_IOVA_DC;
 218         internal_cfg->user_mbuf_pool_ops_name = NULL;
 219         internal_cfg->init_complete = 0;
 220 }
 221
 222 static int
 223 eal_plugin_add(const char *path)
 224 {
 225         struct shared_driver *solib;
 226
 227         solib = malloc(sizeof(*solib));
 228         if (solib == NULL) {
 229                 RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
 230                 return -1;
 231         }
 232         memset(solib, 0, sizeof(*solib));
 233         strlcpy(solib->name, path, PATH_MAX-1);
 234         solib->name[PATH_MAX-1] = 0;
 235         TAILQ_INSERT_TAIL(&solib_list, solib, next);
 236
 237         return 0;
 238 }
 239
 240 static int
 241 eal_plugindir_init(const char *path)
 242 {
 243         DIR *d = NULL;
 244         struct dirent *dent = NULL;
 245         char sopath[PATH_MAX];
 246
 247         if (path == NULL || *path == '\0')
 248                 return 0;
 249
 250         d = opendir(path);
 251         if (d == NULL) {
 252                 RTE_LOG(ERR, EAL, "failed to open directory %s: %s\n",
 253                         path, strerror(errno));
 254                 return -1;
 255         }
 256
 257         while ((dent = readdir(d)) != NULL) {
 258                 struct stat sb;
 259
 260                 snprintf(sopath, PATH_MAX-1, "%s/%s", path, dent->d_name);
 261                 sopath[PATH_MAX-1] = 0;
 262
 263                 if (!(stat(sopath, &sb) == 0 && S_ISREG(sb.st_mode)))
 264                         continue;
 265
 266                 if (eal_plugin_add(sopath) == -1)
 267                         break;
 268         }
 269
 270         closedir(d);
 271         /* XXX this ignores failures from readdir() itself */
 272         return (dent == NULL) ? 0 : -1;
 273 }
 274
 275 int
 276 eal_plugins_init(void)
 277 {
 278         struct shared_driver *solib = NULL;
 279         struct stat sb;
 280
 281         if (*default_solib_dir != '\0' && stat(default_solib_dir, &sb) == 0 &&
 282                                 S_ISDIR(sb.st_mode))
 283                 eal_plugin_add(default_solib_dir);
 284
 285         TAILQ_FOREACH(solib, &solib_list, next) {
 286
 287                 if (stat(solib->name, &sb) == 0 && S_ISDIR(sb.st_mode)) {
 288                         if (eal_plugindir_init(solib->name) == -1) {
 289                                 RTE_LOG(ERR, EAL,
 290                                         "Cannot init plugin directory %s\n",
 291                                         solib->name);
 292                                 return -1;
 293                         }
 294                 } else {
 295                         RTE_LOG(DEBUG, EAL, "open shared lib %s\n",
 296                                 solib->name);
 297                         solib->lib_handle = dlopen(solib->name, RTLD_NOW);
 298                         if (solib->lib_handle == NULL) {
 299                                 RTE_LOG(ERR, EAL, "%s\n", dlerror());
 300                                 return -1;
 301                         }
 302                 }
 303
 304         }
 305         return 0;
 306 }
 307
 308 /*
 309  * Parse the coremask given as argument (hexadecimal string) and fill
 310  * the global configuration (core role and core count) with the parsed
 311  * value.
 312  */
 313 static int xdigit2val(unsigned char c)
 314 {
 315         int val;
 316
 317         if (isdigit(c))
 318                 val = c - '0';
 319         else if (isupper(c))
 320                 val = c - 'A' + 10;
 321         else
 322                 val = c - 'a' + 10;
 323         return val;
 324 }
 325
 326 static int
 327 eal_parse_service_coremask(const char *coremask)
 328 {
 329         struct rte_config *cfg = rte_eal_get_configuration();
 330         int i, j, idx = 0;
 331         unsigned int count = 0;
 332         char c;
 333         int val;
 334         uint32_t taken_lcore_count = 0;
 335
 336         if (coremask == NULL)
 337                 return -1;
 338         /* Remove all blank characters ahead and after .
 339          * Remove 0x/0X if exists.
 340          */
 341         while (isblank(*coremask))
 342                 coremask++;
 343         if (coremask[0] == '0' && ((coremask[1] == 'x')
 344                 || (coremask[1] == 'X')))
 345                 coremask += 2;
 346         i = strlen(coremask);
 347         while ((i > 0) && isblank(coremask[i - 1]))
 348                 i--;
 349
 350         if (i == 0)
 351                 return -1;
 352
 353         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 354                 c = coremask[i];
 355                 if (isxdigit(c) == 0) {
 356                         /* invalid characters */
 357                         return -1;
 358                 }
 359                 val = xdigit2val(c);
 360                 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE;
 361                                 j++, idx++) {
 362                         if ((1 << j) & val) {
 363                                 /* handle master lcore already parsed */
 364                                 uint32_t lcore = idx;
 365                                 if (master_lcore_parsed &&
 366                                                 cfg->master_lcore == lcore) {
 367                                         RTE_LOG(ERR, EAL,
 368                                                 "lcore %u is master lcore, cannot use as service core\n",
 369                                                 idx);
 370                                         return -1;
 371                                 }
 372
 373                                 if (!lcore_config[idx].detected) {
 374                                         RTE_LOG(ERR, EAL,
 375                                                 "lcore %u unavailable\n", idx);
 376                                         return -1;
 377                                 }
 378
 379                                 if (cfg->lcore_role[idx] == ROLE_RTE)
 380                                         taken_lcore_count++;
 381
 382                                 lcore_config[idx].core_role = ROLE_SERVICE;
 383                                 count++;
 384                         }
 385                 }
 386         }
 387
 388         for (; i >= 0; i--)
 389                 if (coremask[i] != '0')
 390                         return -1;
 391
 392         for (; idx < RTE_MAX_LCORE; idx++)
 393                 lcore_config[idx].core_index = -1;
 394
 395         if (count == 0)
 396                 return -1;
 397
 398         if (core_parsed && taken_lcore_count != count) {
 399                 RTE_LOG(WARNING, EAL,
 400                         "Not all service cores are in the coremask. "
 401                         "Please ensure -c or -l includes service cores\n");
 402         }
 403
 404         cfg->service_lcore_count = count;
 405         return 0;
 406 }
 407
 408 static int
 409 eal_service_cores_parsed(void)
 410 {
 411         int idx;
 412         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 413                 if (lcore_config[idx].core_role == ROLE_SERVICE)
 414                         return 1;
 415         }
 416         return 0;
 417 }
 418
 419 static int
 420 eal_parse_coremask(const char *coremask)
 421 {
 422         struct rte_config *cfg = rte_eal_get_configuration();
 423         int i, j, idx = 0;
 424         unsigned count = 0;
 425         char c;
 426         int val;
 427
 428         if (eal_service_cores_parsed())
 429                 RTE_LOG(WARNING, EAL,
 430                         "Service cores parsed before dataplane cores. "
 431                         "Please ensure -c is before -s or -S\n");
 432
 433         if (coremask == NULL)
 434                 return -1;
 435         /* Remove all blank characters ahead and after .
 436          * Remove 0x/0X if exists.
 437          */
 438         while (isblank(*coremask))
 439                 coremask++;
 440         if (coremask[0] == '0' && ((coremask[1] == 'x')
 441                 || (coremask[1] == 'X')))
 442                 coremask += 2;
 443         i = strlen(coremask);
 444         while ((i > 0) && isblank(coremask[i - 1]))
 445                 i--;
 446         if (i == 0)
 447                 return -1;
 448
 449         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 450                 c = coremask[i];
 451                 if (isxdigit(c) == 0) {
 452                         /* invalid characters */
 453                         return -1;
 454                 }
 455                 val = xdigit2val(c);
 456                 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++)
 457                 {
 458                         if ((1 << j) & val) {
 459                                 if (!lcore_config[idx].detected) {
 460                                         RTE_LOG(ERR, EAL, "lcore %u "
 461                                                 "unavailable\n", idx);
 462                                         return -1;
 463                                 }
 464
 465                                 cfg->lcore_role[idx] = ROLE_RTE;
 466                                 lcore_config[idx].core_index = count;
 467                                 count++;
 468                         } else {
 469                                 cfg->lcore_role[idx] = ROLE_OFF;
 470                                 lcore_config[idx].core_index = -1;
 471                         }
 472                 }
 473         }
 474         for (; i >= 0; i--)
 475                 if (coremask[i] != '0')
 476                         return -1;
 477         for (; idx < RTE_MAX_LCORE; idx++) {
 478                 cfg->lcore_role[idx] = ROLE_OFF;
 479                 lcore_config[idx].core_index = -1;
 480         }
 481         if (count == 0)
 482                 return -1;
 483         /* Update the count of enabled logical cores of the EAL configuration */
 484         cfg->lcore_count = count;
 485         return 0;
 486 }
 487
 488 static int
 489 eal_parse_service_corelist(const char *corelist)
 490 {
 491         struct rte_config *cfg = rte_eal_get_configuration();
 492         int i, idx = 0;
 493         unsigned count = 0;
 494         char *end = NULL;
 495         int min, max;
 496         uint32_t taken_lcore_count = 0;
 497
 498         if (corelist == NULL)
 499                 return -1;
 500
 501         /* Remove all blank characters ahead and after */
 502         while (isblank(*corelist))
 503                 corelist++;
 504         i = strlen(corelist);
 505         while ((i > 0) && isblank(corelist[i - 1]))
 506                 i--;
 507
 508         /* Get list of cores */
 509         min = RTE_MAX_LCORE;
 510         do {
 511                 while (isblank(*corelist))
 512                         corelist++;
 513                 if (*corelist == '\0')
 514                         return -1;
 515                 errno = 0;
 516                 idx = strtoul(corelist, &end, 10);
 517                 if (errno || end == NULL)
 518                         return -1;
 519                 while (isblank(*end))
 520                         end++;
 521                 if (*end == '-') {
 522                         min = idx;
 523                 } else if ((*end == ',') || (*end == '\0')) {
 524                         max = idx;
 525                         if (min == RTE_MAX_LCORE)
 526                                 min = idx;
 527                         for (idx = min; idx <= max; idx++) {
 528                                 if (cfg->lcore_role[idx] != ROLE_SERVICE) {
 529                                         /* handle master lcore already parsed */
 530                                         uint32_t lcore = idx;
 531                                         if (cfg->master_lcore == lcore &&
 532                                                         master_lcore_parsed) {
 533                                                 RTE_LOG(ERR, EAL,
 534                                                         "Error: lcore %u is master lcore, cannot use as service core\n",
 535                                                         idx);
 536                                                 return -1;
 537                                         }
 538                                         if (cfg->lcore_role[idx] == ROLE_RTE)
 539                                                 taken_lcore_count++;
 540
 541                                         lcore_config[idx].core_role =
 542                                                         ROLE_SERVICE;
 543                                         count++;
 544                                 }
 545                         }
 546                         min = RTE_MAX_LCORE;
 547                 } else
 548                         return -1;
 549                 corelist = end + 1;
 550         } while (*end != '\0');
 551
 552         if (count == 0)
 553                 return -1;
 554
 555         if (core_parsed && taken_lcore_count != count) {
 556                 RTE_LOG(WARNING, EAL,
 557                         "Not all service cores were in the coremask. "
 558                         "Please ensure -c or -l includes service cores\n");
 559         }
 560
 561         return 0;
 562 }
 563
 564 static int
 565 eal_parse_corelist(const char *corelist)
 566 {
 567         struct rte_config *cfg = rte_eal_get_configuration();
 568         int i, idx = 0;
 569         unsigned count = 0;
 570         char *end = NULL;
 571         int min, max;
 572
 573         if (eal_service_cores_parsed())
 574                 RTE_LOG(WARNING, EAL,
 575                         "Service cores parsed before dataplane cores. "
 576                         "Please ensure -l is before -s or -S\n");
 577
 578         if (corelist == NULL)
 579                 return -1;
 580
 581         /* Remove all blank characters ahead and after */
 582         while (isblank(*corelist))
 583                 corelist++;
 584         i = strlen(corelist);
 585         while ((i > 0) && isblank(corelist[i - 1]))
 586                 i--;
 587
 588         /* Reset config */
 589         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 590                 cfg->lcore_role[idx] = ROLE_OFF;
 591                 lcore_config[idx].core_index = -1;
 592         }
 593
 594         /* Get list of cores */
 595         min = RTE_MAX_LCORE;
 596         do {
 597                 while (isblank(*corelist))
 598                         corelist++;
 599                 if (*corelist == '\0')
 600                         return -1;
 601                 errno = 0;
 602                 idx = strtol(corelist, &end, 10);
 603                 if (idx < 0 || idx >= (int)cfg->lcore_count)
 604                         return -1;
 605                 if (errno || end == NULL)
 606                         return -1;
 607                 while (isblank(*end))
 608                         end++;
 609                 if (*end == '-') {
 610                         min = idx;
 611                 } else if ((*end == ',') || (*end == '\0')) {
 612                         max = idx;
 613                         if (min == RTE_MAX_LCORE)
 614                                 min = idx;
 615                         for (idx = min; idx <= max; idx++) {
 616                                 if (cfg->lcore_role[idx] != ROLE_RTE) {
 617                                         cfg->lcore_role[idx] = ROLE_RTE;
 618                                         lcore_config[idx].core_index = count;
 619                                         count++;
 620                                 }
 621                         }
 622                         min = RTE_MAX_LCORE;
 623                 } else
 624                         return -1;
 625                 corelist = end + 1;
 626         } while (*end != '\0');
 627
 628         if (count == 0)
 629                 return -1;
 630
 631         /* Update the count of enabled logical cores of the EAL configuration */
 632         cfg->lcore_count = count;
 633
 634         return 0;
 635 }
 636
 637 /* Changes the lcore id of the master thread */
 638 static int
 639 eal_parse_master_lcore(const char *arg)
 640 {
 641         char *parsing_end;
 642         struct rte_config *cfg = rte_eal_get_configuration();
 643
 644         errno = 0;
 645         cfg->master_lcore = (uint32_t) strtol(arg, &parsing_end, 0);
 646         if (errno || parsing_end[0] != 0)
 647                 return -1;
 648         if (cfg->master_lcore >= RTE_MAX_LCORE)
 649                 return -1;
 650         master_lcore_parsed = 1;
 651
 652         /* ensure master core is not used as service core */
 653         if (lcore_config[cfg->master_lcore].core_role == ROLE_SERVICE) {
 654                 RTE_LOG(ERR, EAL,
 655                         "Error: Master lcore is used as a service core\n");
 656                 return -1;
 657         }
 658
 659         return 0;
 660 }
 661
 662 /*
 663  * Parse elem, the elem could be single number/range or '(' ')' group
 664  * 1) A single number elem, it's just a simple digit. e.g. 9
 665  * 2) A single range elem, two digits with a '-' between. e.g. 2-6
 666  * 3) A group elem, combines multiple 1) or 2) with '( )'. e.g (0,2-4,6)
 667  *    Within group elem, '-' used for a range separator;
 668  *                       ',' used for a single number.
 669  */
 670 static int
 671 eal_parse_set(const char *input, uint16_t set[], unsigned num)
 672 {
 673         unsigned idx;
 674         const char *str = input;
 675         char *end = NULL;
 676         unsigned min, max;
 677
 678         memset(set, 0, num * sizeof(uint16_t));
 679
 680         while (isblank(*str))
 681                 str++;
 682
 683         /* only digit or left bracket is qualify for start point */
 684         if ((!isdigit(*str) && *str != '(') || *str == '\0')
 685                 return -1;
 686
 687         /* process single number or single range of number */
 688         if (*str != '(') {
 689                 errno = 0;
 690                 idx = strtoul(str, &end, 10);
 691                 if (errno || end == NULL || idx >= num)
 692                         return -1;
 693                 else {
 694                         while (isblank(*end))
 695                                 end++;
 696
 697                         min = idx;
 698                         max = idx;
 699                         if (*end == '-') {
 700                                 /* process single <number>-<number> */
 701                                 end++;
 702                                 while (isblank(*end))
 703                                         end++;
 704                                 if (!isdigit(*end))
 705                                         return -1;
 706
 707                                 errno = 0;
 708                                 idx = strtoul(end, &end, 10);
 709                                 if (errno || end == NULL || idx >= num)
 710                                         return -1;
 711                                 max = idx;
 712                                 while (isblank(*end))
 713                                         end++;
 714                                 if (*end != ',' && *end != '\0')
 715                                         return -1;
 716                         }
 717
 718                         if (*end != ',' && *end != '\0' &&
 719                             *end != '@')
 720                                 return -1;
 721
 722                         for (idx = RTE_MIN(min, max);
 723                              idx <= RTE_MAX(min, max); idx++)
 724                                 set[idx] = 1;
 725
 726                         return end - input;
 727                 }
 728         }
 729
 730         /* process set within bracket */
 731         str++;
 732         while (isblank(*str))
 733                 str++;
 734         if (*str == '\0')
 735                 return -1;
 736
 737         min = RTE_MAX_LCORE;
 738         do {
 739
 740                 /* go ahead to the first digit */
 741                 while (isblank(*str))
 742                         str++;
 743                 if (!isdigit(*str))
 744                         return -1;
 745
 746                 /* get the digit value */
 747                 errno = 0;
 748                 idx = strtoul(str, &end, 10);
 749                 if (errno || end == NULL || idx >= num)
 750                         return -1;
 751
 752                 /* go ahead to separator '-',',' and ')' */
 753                 while (isblank(*end))
 754                         end++;
 755                 if (*end == '-') {
 756                         if (min == RTE_MAX_LCORE)
 757                                 min = idx;
 758                         else /* avoid continuous '-' */
 759                                 return -1;
 760                 } else if ((*end == ',') || (*end == ')')) {
 761                         max = idx;
 762                         if (min == RTE_MAX_LCORE)
 763                                 min = idx;
 764                         for (idx = RTE_MIN(min, max);
 765                              idx <= RTE_MAX(min, max); idx++)
 766                                 set[idx] = 1;
 767
 768                         min = RTE_MAX_LCORE;
 769                 } else
 770                         return -1;
 771
 772                 str = end + 1;
 773         } while (*end != '\0' && *end != ')');
 774
 775         /*
 776          * to avoid failure that tail blank makes end character check fail
 777          * in eal_parse_lcores( )
 778          */
 779         while (isblank(*str))
 780                 str++;
 781
 782         return str - input;
 783 }
 784
 785 /* convert from set array to cpuset bitmap */
 786 static int
 787 convert_to_cpuset(rte_cpuset_t *cpusetp,
 788               uint16_t *set, unsigned num)
 789 {
 790         unsigned idx;
 791
 792         CPU_ZERO(cpusetp);
 793
 794         for (idx = 0; idx < num; idx++) {
 795                 if (!set[idx])
 796                         continue;
 797
 798                 if (!lcore_config[idx].detected) {
 799                         RTE_LOG(ERR, EAL, "core %u "
 800                                 "unavailable\n", idx);
 801                         return -1;
 802                 }
 803
 804                 CPU_SET(idx, cpusetp);
 805         }
 806
 807         return 0;
 808 }
 809
 810 /*
 811  * The format pattern: --lcores='<lcores[@cpus]>[<,lcores[@cpus]>...]'
 812  * lcores, cpus could be a single digit/range or a group.
 813  * '(' and ')' are necessary if it's a group.
 814  * If not supply '@cpus', the value of cpus uses the same as lcores.
 815  * e.g. '1,2@(5-7),(3-5)@(0,2),(0,6),7-8' means start 9 EAL thread as below
 816  *   lcore 0 runs on cpuset 0x41 (cpu 0,6)
 817  *   lcore 1 runs on cpuset 0x2 (cpu 1)
 818  *   lcore 2 runs on cpuset 0xe0 (cpu 5,6,7)
 819  *   lcore 3,4,5 runs on cpuset 0x5 (cpu 0,2)
 820  *   lcore 6 runs on cpuset 0x41 (cpu 0,6)
 821  *   lcore 7 runs on cpuset 0x80 (cpu 7)
 822  *   lcore 8 runs on cpuset 0x100 (cpu 8)
 823  */
 824 static int
 825 eal_parse_lcores(const char *lcores)
 826 {
 827         struct rte_config *cfg = rte_eal_get_configuration();
 828         static uint16_t set[RTE_MAX_LCORE];
 829         unsigned idx = 0;
 830         unsigned count = 0;
 831         const char *lcore_start = NULL;
 832         const char *end = NULL;
 833         int offset;
 834         rte_cpuset_t cpuset;
 835         int lflags;
 836         int ret = -1;
 837
 838         if (lcores == NULL)
 839                 return -1;
 840
 841         /* Remove all blank characters ahead and after */
 842         while (isblank(*lcores))
 843                 lcores++;
 844
 845         CPU_ZERO(&cpuset);
 846
 847         /* Reset lcore config */
 848         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 849                 cfg->lcore_role[idx] = ROLE_OFF;
 850                 lcore_config[idx].core_index = -1;
 851                 CPU_ZERO(&lcore_config[idx].cpuset);
 852         }
 853
 854         /* Get list of cores */
 855         do {
 856                 while (isblank(*lcores))
 857                         lcores++;
 858                 if (*lcores == '\0')
 859                         goto err;
 860
 861                 lflags = 0;
 862
 863                 /* record lcore_set start point */
 864                 lcore_start = lcores;
 865
 866                 /* go across a complete bracket */
 867                 if (*lcore_start == '(') {
 868                         lcores += strcspn(lcores, ")");
 869                         if (*lcores++ == '\0')
 870                                 goto err;
 871                 }
 872
 873                 /* scan the separator '@', ','(next) or '\0'(finish) */
 874                 lcores += strcspn(lcores, "@,");
 875
 876                 if (*lcores == '@') {
 877                         /* explicit assign cpu_set */
 878                         offset = eal_parse_set(lcores + 1, set, RTE_DIM(set));
 879                         if (offset < 0)
 880                                 goto err;
 881
 882                         /* prepare cpu_set and update the end cursor */
 883                         if (0 > convert_to_cpuset(&cpuset,
 884                                                   set, RTE_DIM(set)))
 885                                 goto err;
 886                         end = lcores + 1 + offset;
 887                 } else { /* ',' or '\0' */
 888                         /* haven't given cpu_set, current loop done */
 889                         end = lcores;
 890
 891                         /* go back to check <number>-<number> */
 892                         offset = strcspn(lcore_start, "(-");
 893                         if (offset < (end - lcore_start) &&
 894                             *(lcore_start + offset) != '(')
 895                                 lflags = 1;
 896                 }
 897
 898                 if (*end != ',' && *end != '\0')
 899                         goto err;
 900
 901                 /* parse lcore_set from start point */
 902                 if (0 > eal_parse_set(lcore_start, set, RTE_DIM(set)))
 903                         goto err;
 904
 905                 /* without '@', by default using lcore_set as cpu_set */
 906                 if (*lcores != '@' &&
 907                     0 > convert_to_cpuset(&cpuset, set, RTE_DIM(set)))
 908                         goto err;
 909
 910                 /* start to update lcore_set */
 911                 for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 912                         if (!set[idx])
 913                                 continue;
 914
 915                         if (cfg->lcore_role[idx] != ROLE_RTE) {
 916                                 lcore_config[idx].core_index = count;
 917                                 cfg->lcore_role[idx] = ROLE_RTE;
 918                                 count++;
 919                         }
 920
 921                         if (lflags) {
 922                                 CPU_ZERO(&cpuset);
 923                                 CPU_SET(idx, &cpuset);
 924                         }
 925                         rte_memcpy(&lcore_config[idx].cpuset, &cpuset,
 926                                    sizeof(rte_cpuset_t));
 927                 }
 928
 929                 lcores = end + 1;
 930         } while (*end != '\0');
 931
 932         if (count == 0)
 933                 goto err;
 934
 935         cfg->lcore_count = count;
 936         ret = 0;
 937
 938 err:
 939
 940         return ret;
 941 }
 942
 943 static int
 944 eal_parse_syslog(const char *facility, struct internal_config *conf)
 945 {
 946         int i;
 947         static const struct {
 948                 const char *name;
 949                 int value;
 950         } map[] = {
 951                 { "auth", LOG_AUTH },
 952                 { "cron", LOG_CRON },
 953                 { "daemon", LOG_DAEMON },
 954                 { "ftp", LOG_FTP },
 955                 { "kern", LOG_KERN },
 956                 { "lpr", LOG_LPR },
 957                 { "mail", LOG_MAIL },
 958                 { "news", LOG_NEWS },
 959                 { "syslog", LOG_SYSLOG },
 960                 { "user", LOG_USER },
 961                 { "uucp", LOG_UUCP },
 962                 { "local0", LOG_LOCAL0 },
 963                 { "local1", LOG_LOCAL1 },
 964                 { "local2", LOG_LOCAL2 },
 965                 { "local3", LOG_LOCAL3 },
 966                 { "local4", LOG_LOCAL4 },
 967                 { "local5", LOG_LOCAL5 },
 968                 { "local6", LOG_LOCAL6 },
 969                 { "local7", LOG_LOCAL7 },
 970                 { NULL, 0 }
 971         };
 972
 973         for (i = 0; map[i].name; i++) {
 974                 if (!strcmp(facility, map[i].name)) {
 975                         conf->syslog_facility = map[i].value;
 976                         return 0;
 977                 }
 978         }
 979         return -1;
 980 }
 981
 982 static int
 983 eal_parse_log_priority(const char *level)
 984 {
 985         static const char * const levels[] = {
 986                 [RTE_LOG_EMERG]   = "emergency",
 987                 [RTE_LOG_ALERT]   = "alert",
 988                 [RTE_LOG_CRIT]    = "critical",
 989                 [RTE_LOG_ERR]     = "error",
 990                 [RTE_LOG_WARNING] = "warning",
 991                 [RTE_LOG_NOTICE]  = "notice",
 992                 [RTE_LOG_INFO]    = "info",
 993                 [RTE_LOG_DEBUG]   = "debug",
 994         };
 995         size_t len = strlen(level);
 996         unsigned long tmp;
 997         char *end;
 998         unsigned int i;
 999
1000         if (len == 0)
1001                 return -1;
1002
1003         /* look for named values, skip 0 which is not a valid level */
1004         for (i = 1; i < RTE_DIM(levels); i++) {
1005                 if (strncmp(levels[i], level, len) == 0)
1006                         return i;
1007         }
1008
1009         /* not a string, maybe it is numeric */
1010         errno = 0;
1011         tmp = strtoul(level, &end, 0);
1012
1013         /* check for errors */
1014         if (errno != 0 || end == NULL || *end != '\0' ||
1015             tmp >= UINT32_MAX)
1016                 return -1;
1017
1018         return tmp;
1019 }
1020
1021 static int
1022 eal_parse_log_level(const char *arg)
1023 {
1024         const char *pattern = NULL;
1025         const char *regex = NULL;
1026         char *str, *level;
1027         int priority;
1028
1029         str = strdup(arg);
1030         if (str == NULL)
1031                 return -1;
1032
1033         if ((level = strchr(str, ','))) {
1034                 regex = str;
1035                 *level++ = '\0';
1036         } else if ((level = strchr(str, ':'))) {
1037                 pattern = str;
1038                 *level++ = '\0';
1039         } else {
1040                 level = str;
1041         }
1042
1043         priority = eal_parse_log_priority(level);
1044         if (priority < 0) {
1045                 fprintf(stderr, "invalid log priority: %s\n", level);
1046                 goto fail;
1047         }
1048
1049         if (regex) {
1050                 if (rte_log_set_level_regexp(regex, priority) < 0) {
1051                         fprintf(stderr, "cannot set log level %s,%d\n",
1052                                 pattern, priority);
1053                         goto fail;
1054                 }
1055                 if (rte_log_save_regexp(regex, priority) < 0)
1056                         goto fail;
1057         } else if (pattern) {
1058                 if (rte_log_set_level_pattern(pattern, priority) < 0) {
1059                         fprintf(stderr, "cannot set log level %s:%d\n",
1060                                 pattern, priority);
1061                         goto fail;
1062                 }
1063                 if (rte_log_save_pattern(pattern, priority) < 0)
1064                         goto fail;
1065         } else {
1066                 rte_log_set_global_level(priority);
1067         }
1068
1069         free(str);
1070         return 0;
1071
1072 fail:
1073         free(str);
1074         return -1;
1075 }
1076
1077 static enum rte_proc_type_t
1078 eal_parse_proc_type(const char *arg)
1079 {
1080         if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
1081                 return RTE_PROC_PRIMARY;
1082         if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
1083                 return RTE_PROC_SECONDARY;
1084         if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
1085                 return RTE_PROC_AUTO;
1086
1087         return RTE_PROC_INVALID;
1088 }
1089
1090 static int
1091 eal_parse_iova_mode(const char *name)
1092 {
1093         int mode;
1094
1095         if (name == NULL)
1096                 return -1;
1097
1098         if (!strcmp("pa", name))
1099                 mode = RTE_IOVA_PA;
1100         else if (!strcmp("va", name))
1101                 mode = RTE_IOVA_VA;
1102         else
1103                 return -1;
1104
1105         internal_config.iova_mode = mode;
1106         return 0;
1107 }
1108
1109 int
1110 eal_parse_common_option(int opt, const char *optarg,
1111                         struct internal_config *conf)
1112 {
1113         static int b_used;
1114         static int w_used;
1115         struct rte_config *cfg = rte_eal_get_configuration();
1116
1117         switch (opt) {
1118         /* blacklist */
1119         case 'b':
1120                 if (w_used)
1121                         goto bw_used;
1122                 if (eal_option_device_add(RTE_DEVTYPE_BLACKLISTED_PCI,
1123                                 optarg) < 0) {
1124                         return -1;
1125                 }
1126                 b_used = 1;
1127                 break;
1128         /* whitelist */
1129         case 'w':
1130                 if (b_used)
1131                         goto bw_used;
1132                 if (eal_option_device_add(RTE_DEVTYPE_WHITELISTED_PCI,
1133                                 optarg) < 0) {
1134                         return -1;
1135                 }
1136                 w_used = 1;
1137                 break;
1138         /* coremask */
1139         case 'c':
1140                 if (eal_parse_coremask(optarg) < 0) {
1141                         RTE_LOG(ERR, EAL, "invalid coremask\n");
1142                         return -1;
1143                 }
1144
1145                 if (core_parsed) {
1146                         RTE_LOG(ERR, EAL, "Option -c is ignored, because (%s) is set!\n",
1147                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1148                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1149                                 "-c");
1150                         return -1;
1151                 }
1152
1153                 core_parsed = LCORE_OPT_MSK;
1154                 break;
1155         /* corelist */
1156         case 'l':
1157                 if (eal_parse_corelist(optarg) < 0) {
1158                         RTE_LOG(ERR, EAL,
1159                                 "invalid core list, please check core numbers are in [0, %u] range\n",
1160                                         cfg->lcore_count-1);
1161                         return -1;
1162                 }
1163
1164                 if (core_parsed) {
1165                         RTE_LOG(ERR, EAL, "Option -l is ignored, because (%s) is set!\n",
1166                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1167                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1168                                 "-l");
1169                         return -1;
1170                 }
1171
1172                 core_parsed = LCORE_OPT_LST;
1173                 break;
1174         /* service coremask */
1175         case 's':
1176                 if (eal_parse_service_coremask(optarg) < 0) {
1177                         RTE_LOG(ERR, EAL, "invalid service coremask\n");
1178                         return -1;
1179                 }
1180                 break;
1181         /* service corelist */
1182         case 'S':
1183                 if (eal_parse_service_corelist(optarg) < 0) {
1184                         RTE_LOG(ERR, EAL, "invalid service core list\n");
1185                         return -1;
1186                 }
1187                 break;
1188         /* size of memory */
1189         case 'm':
1190                 conf->memory = atoi(optarg);
1191                 conf->memory *= 1024ULL;
1192                 conf->memory *= 1024ULL;
1193                 mem_parsed = 1;
1194                 break;
1195         /* force number of channels */
1196         case 'n':
1197                 conf->force_nchannel = atoi(optarg);
1198                 if (conf->force_nchannel == 0) {
1199                         RTE_LOG(ERR, EAL, "invalid channel number\n");
1200                         return -1;
1201                 }
1202                 break;
1203         /* force number of ranks */
1204         case 'r':
1205                 conf->force_nrank = atoi(optarg);
1206                 if (conf->force_nrank == 0 ||
1207                     conf->force_nrank > 16) {
1208                         RTE_LOG(ERR, EAL, "invalid rank number\n");
1209                         return -1;
1210                 }
1211                 break;
1212         /* force loading of external driver */
1213         case 'd':
1214                 if (eal_plugin_add(optarg) == -1)
1215                         return -1;
1216                 break;
1217         case 'v':
1218                 /* since message is explicitly requested by user, we
1219                  * write message at highest log level so it can always
1220                  * be seen
1221                  * even if info or warning messages are disabled */
1222                 RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
1223                 break;
1224
1225         /* long options */
1226         case OPT_HUGE_UNLINK_NUM:
1227                 conf->hugepage_unlink = 1;
1228                 break;
1229
1230         case OPT_NO_HUGE_NUM:
1231                 conf->no_hugetlbfs = 1;
1232                 /* no-huge is legacy mem */
1233                 conf->legacy_mem = 1;
1234                 break;
1235
1236         case OPT_NO_PCI_NUM:
1237                 conf->no_pci = 1;
1238                 break;
1239
1240         case OPT_NO_HPET_NUM:
1241                 conf->no_hpet = 1;
1242                 break;
1243
1244         case OPT_VMWARE_TSC_MAP_NUM:
1245                 conf->vmware_tsc_map = 1;
1246                 break;
1247
1248         case OPT_NO_SHCONF_NUM:
1249                 conf->no_shconf = 1;
1250                 break;
1251
1252         case OPT_IN_MEMORY_NUM:
1253                 conf->in_memory = 1;
1254                 /* in-memory is a superset of noshconf and huge-unlink */
1255                 conf->no_shconf = 1;
1256                 conf->hugepage_unlink = 1;
1257                 break;
1258
1259         case OPT_PROC_TYPE_NUM:
1260                 conf->process_type = eal_parse_proc_type(optarg);
1261                 break;
1262
1263         case OPT_MASTER_LCORE_NUM:
1264                 if (eal_parse_master_lcore(optarg) < 0) {
1265                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1266                                         OPT_MASTER_LCORE "\n");
1267                         return -1;
1268                 }
1269                 break;
1270
1271         case OPT_VDEV_NUM:
1272                 if (eal_option_device_add(RTE_DEVTYPE_VIRTUAL,
1273                                 optarg) < 0) {
1274                         return -1;
1275                 }
1276                 break;
1277
1278         case OPT_SYSLOG_NUM:
1279                 if (eal_parse_syslog(optarg, conf) < 0) {
1280                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1281                                         OPT_SYSLOG "\n");
1282                         return -1;
1283                 }
1284                 break;
1285
1286         case OPT_LOG_LEVEL_NUM: {
1287                 if (eal_parse_log_level(optarg) < 0) {
1288                         RTE_LOG(ERR, EAL,
1289                                 "invalid parameters for --"
1290                                 OPT_LOG_LEVEL "\n");
1291                         return -1;
1292                 }
1293                 break;
1294         }
1295         case OPT_LCORES_NUM:
1296                 if (eal_parse_lcores(optarg) < 0) {
1297                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1298                                 OPT_LCORES "\n");
1299                         return -1;
1300                 }
1301
1302                 if (core_parsed) {
1303                         RTE_LOG(ERR, EAL, "Option --lcore is ignored, because (%s) is set!\n",
1304                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1305                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1306                                 "--lcore");
1307                         return -1;
1308                 }
1309
1310                 core_parsed = LCORE_OPT_MAP;
1311                 break;
1312         case OPT_LEGACY_MEM_NUM:
1313                 conf->legacy_mem = 1;
1314                 break;
1315         case OPT_SINGLE_FILE_SEGMENTS_NUM:
1316                 conf->single_file_segments = 1;
1317                 break;
1318         case OPT_IOVA_MODE_NUM:
1319                 if (eal_parse_iova_mode(optarg) < 0) {
1320                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1321                                 OPT_IOVA_MODE "\n");
1322                         return -1;
1323                 }
1324                 break;
1325
1326         /* don't know what to do, leave this to caller */
1327         default:
1328                 return 1;
1329
1330         }
1331
1332         return 0;
1333 bw_used:
1334         RTE_LOG(ERR, EAL, "Options blacklist (-b) and whitelist (-w) "
1335                 "cannot be used at the same time\n");
1336         return -1;
1337 }
1338
1339 static void
1340 eal_auto_detect_cores(struct rte_config *cfg)
1341 {
1342         unsigned int lcore_id;
1343         unsigned int removed = 0;
1344         rte_cpuset_t affinity_set;
1345         pthread_t tid = pthread_self();
1346
1347         if (pthread_getaffinity_np(tid, sizeof(rte_cpuset_t),
1348                                 &affinity_set) < 0)
1349                 CPU_ZERO(&affinity_set);
1350
1351         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1352                 if (cfg->lcore_role[lcore_id] == ROLE_RTE &&
1353                     !CPU_ISSET(lcore_id, &affinity_set)) {
1354                         cfg->lcore_role[lcore_id] = ROLE_OFF;
1355                         removed++;
1356                 }
1357         }
1358
1359         cfg->lcore_count -= removed;
1360 }
1361
1362 int
1363 eal_cleanup_config(struct internal_config *internal_cfg)
1364 {
1365         if (internal_cfg->hugefile_prefix != NULL)
1366                 free(internal_cfg->hugefile_prefix);
1367         if (internal_cfg->hugepage_dir != NULL)
1368                 free(internal_cfg->hugepage_dir);
1369         if (internal_cfg->user_mbuf_pool_ops_name != NULL)
1370                 free(internal_cfg->user_mbuf_pool_ops_name);
1371
1372         return 0;
1373 }
1374
1375 int
1376 eal_adjust_config(struct internal_config *internal_cfg)
1377 {
1378         int i;
1379         struct rte_config *cfg = rte_eal_get_configuration();
1380
1381         if (!core_parsed)
1382                 eal_auto_detect_cores(cfg);
1383
1384         if (internal_config.process_type == RTE_PROC_AUTO)
1385                 internal_config.process_type = eal_proc_type_detect();
1386
1387         /* default master lcore is the first one */
1388         if (!master_lcore_parsed) {
1389                 cfg->master_lcore = rte_get_next_lcore(-1, 0, 0);
1390                 if (cfg->master_lcore >= RTE_MAX_LCORE)
1391                         return -1;
1392                 lcore_config[cfg->master_lcore].core_role = ROLE_RTE;
1393         }
1394
1395         /* if no memory amounts were requested, this will result in 0 and
1396          * will be overridden later, right after eal_hugepage_info_init() */
1397         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
1398                 internal_cfg->memory += internal_cfg->socket_mem[i];
1399
1400         return 0;
1401 }
1402
1403 int
1404 eal_check_common_options(struct internal_config *internal_cfg)
1405 {
1406         struct rte_config *cfg = rte_eal_get_configuration();
1407
1408         if (cfg->lcore_role[cfg->master_lcore] != ROLE_RTE) {
1409                 RTE_LOG(ERR, EAL, "Master lcore is not enabled for DPDK\n");
1410                 return -1;
1411         }
1412
1413         if (internal_cfg->process_type == RTE_PROC_INVALID) {
1414                 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
1415                 return -1;
1416         }
1417         if (internal_cfg->hugefile_prefix != NULL &&
1418                         strlen(internal_cfg->hugefile_prefix) < 1) {
1419                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_FILE_PREFIX " option\n");
1420                 return -1;
1421         }
1422         if (internal_cfg->hugepage_dir != NULL &&
1423                         strlen(internal_cfg->hugepage_dir) < 1) {
1424                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_HUGE_DIR" option\n");
1425                 return -1;
1426         }
1427         if (internal_cfg->user_mbuf_pool_ops_name != NULL &&
1428                         strlen(internal_cfg->user_mbuf_pool_ops_name) < 1) {
1429                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_MBUF_POOL_OPS_NAME" option\n");
1430                 return -1;
1431         }
1432         if (index(eal_get_hugefile_prefix(), '%') != NULL) {
1433                 RTE_LOG(ERR, EAL, "Invalid char, '%%', in --"OPT_FILE_PREFIX" "
1434                         "option\n");
1435                 return -1;
1436         }
1437         if (mem_parsed && internal_cfg->force_sockets == 1) {
1438                 RTE_LOG(ERR, EAL, "Options -m and --"OPT_SOCKET_MEM" cannot "
1439                         "be specified at the same time\n");
1440                 return -1;
1441         }
1442         if (internal_cfg->no_hugetlbfs && internal_cfg->force_sockets == 1) {
1443                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_MEM" cannot "
1444                         "be specified together with --"OPT_NO_HUGE"\n");
1445                 return -1;
1446         }
1447         if (internal_cfg->no_hugetlbfs && internal_cfg->hugepage_unlink &&
1448                         !internal_cfg->in_memory) {
1449                 RTE_LOG(ERR, EAL, "Option --"OPT_HUGE_UNLINK" cannot "
1450                         "be specified together with --"OPT_NO_HUGE"\n");
1451                 return -1;
1452         }
1453         if (internal_config.force_socket_limits && internal_config.legacy_mem) {
1454                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_LIMIT
1455                         " is only supported in non-legacy memory mode\n");
1456         }
1457         if (internal_cfg->single_file_segments &&
1458                         internal_cfg->hugepage_unlink &&
1459                         !internal_cfg->in_memory) {
1460                 RTE_LOG(ERR, EAL, "Option --"OPT_SINGLE_FILE_SEGMENTS" is "
1461                         "not compatible with --"OPT_HUGE_UNLINK"\n");
1462                 return -1;
1463         }
1464         if (internal_cfg->legacy_mem &&
1465                         internal_cfg->in_memory) {
1466                 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
1467                                 "with --"OPT_IN_MEMORY"\n");
1468                 return -1;
1469         }
1470
1471         return 0;
1472 }
1473
1474 void
1475 eal_common_usage(void)
1476 {
1477         printf("[options]\n\n"
1478                "EAL common options:\n"
1479                "  -c COREMASK         Hexadecimal bitmask of cores to run on\n"
1480                "  -l CORELIST         List of cores to run on\n"
1481                "                      The argument format is <c1>[-c2][,c3[-c4],...]\n"
1482                "                      where c1, c2, etc are core indexes between 0 and %d\n"
1483                "  --"OPT_LCORES" COREMAP    Map lcore set to physical cpu set\n"
1484                "                      The argument format is\n"
1485                "                            '<lcores[@cpus]>[<,lcores[@cpus]>...]'\n"
1486                "                      lcores and cpus list are grouped by '(' and ')'\n"
1487                "                      Within the group, '-' is used for range separator,\n"
1488                "                      ',' is used for single number separator.\n"
1489                "                      '( )' can be omitted for single element group,\n"
1490                "                      '@' can be omitted if cpus and lcores have the same value\n"
1491                "  -s SERVICE COREMASK Hexadecimal bitmask of cores to be used as service cores\n"
1492                "  --"OPT_MASTER_LCORE" ID   Core ID that is used as master\n"
1493                "  --"OPT_MBUF_POOL_OPS_NAME" Pool ops name for mbuf to use\n"
1494                "  -n CHANNELS         Number of memory channels\n"
1495                "  -m MB               Memory to allocate (see also --"OPT_SOCKET_MEM")\n"
1496                "  -r RANKS            Force number of memory ranks (don't detect)\n"
1497                "  -b, --"OPT_PCI_BLACKLIST" Add a PCI device in black list.\n"
1498                "                      Prevent EAL from using this PCI device. The argument\n"
1499                "                      format is <domain:bus:devid.func>.\n"
1500                "  -w, --"OPT_PCI_WHITELIST" Add a PCI device in white list.\n"
1501                "                      Only use the specified PCI devices. The argument format\n"
1502                "                      is <[domain:]bus:devid.func>. This option can be present\n"
1503                "                      several times (once per device).\n"
1504                "                      [NOTE: PCI whitelist cannot be used with -b option]\n"
1505                "  --"OPT_VDEV"              Add a virtual device.\n"
1506                "                      The argument format is <driver><id>[,key=val,...]\n"
1507                "                      (ex: --vdev=net_pcap0,iface=eth2).\n"
1508                "  --"OPT_IOVA_MODE"   Set IOVA mode. 'pa' for IOVA_PA\n"
1509                "                      'va' for IOVA_VA\n"
1510                "  -d LIB.so|DIR       Add a driver or driver directory\n"
1511                "                      (can be used multiple times)\n"
1512                "  --"OPT_VMWARE_TSC_MAP"    Use VMware TSC map instead of native RDTSC\n"
1513                "  --"OPT_PROC_TYPE"         Type of this process (primary|secondary|auto)\n"
1514                "  --"OPT_SYSLOG"            Set syslog facility\n"
1515                "  --"OPT_LOG_LEVEL"=<int>   Set global log level\n"
1516                "  --"OPT_LOG_LEVEL"=<type-match>:<int>\n"
1517                "                      Set specific log level\n"
1518                "  -v                  Display version information on startup\n"
1519                "  -h, --help          This help\n"
1520                "  --"OPT_IN_MEMORY"   Operate entirely in memory. This will\n"
1521                "                      disable secondary process support\n"
1522                "\nEAL options for DEBUG use only:\n"
1523                "  --"OPT_HUGE_UNLINK"       Unlink hugepage files after init\n"
1524                "  --"OPT_NO_HUGE"           Use malloc instead of hugetlbfs\n"
1525                "  --"OPT_NO_PCI"            Disable PCI\n"
1526                "  --"OPT_NO_HPET"           Disable HPET\n"
1527                "  --"OPT_NO_SHCONF"         No shared config (mmap'd files)\n"
1528                "\n", RTE_MAX_LCORE);
1529 }