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         {OPT_MATCH_ALLOCATIONS, 0, NULL, OPT_MATCH_ALLOCATIONS_NUM},
  83         {0,                     0, NULL, 0                        }
  84 };
  85
  86 TAILQ_HEAD(shared_driver_list, shared_driver);
  87
  88 /* Definition for shared object drivers. */
  89 struct shared_driver {
  90         TAILQ_ENTRY(shared_driver) next;
  91
  92         char    name[PATH_MAX];
  93         void*   lib_handle;
  94 };
  95
  96 /* List of external loadable drivers */
  97 static struct shared_driver_list solib_list =
  98 TAILQ_HEAD_INITIALIZER(solib_list);
  99
 100 /* Default path of external loadable drivers */
 101 static const char *default_solib_dir = RTE_EAL_PMD_PATH;
 102
 103 /*
 104  * Stringified version of solib path used by dpdk-pmdinfo.py
 105  * Note: PLEASE DO NOT ALTER THIS without making a corresponding
 106  * change to usertools/dpdk-pmdinfo.py
 107  */
 108 static const char dpdk_solib_path[] __attribute__((used)) =
 109 "DPDK_PLUGIN_PATH=" RTE_EAL_PMD_PATH;
 110
 111 TAILQ_HEAD(device_option_list, device_option);
 112
 113 struct device_option {
 114         TAILQ_ENTRY(device_option) next;
 115
 116         enum rte_devtype type;
 117         char arg[];
 118 };
 119
 120 static struct device_option_list devopt_list =
 121 TAILQ_HEAD_INITIALIZER(devopt_list);
 122
 123 static int master_lcore_parsed;
 124 static int mem_parsed;
 125 static int core_parsed;
 126
 127 static int
 128 eal_option_device_add(enum rte_devtype type, const char *optarg)
 129 {
 130         struct device_option *devopt;
 131         size_t optlen;
 132         int ret;
 133
 134         optlen = strlen(optarg) + 1;
 135         devopt = calloc(1, sizeof(*devopt) + optlen);
 136         if (devopt == NULL) {
 137                 RTE_LOG(ERR, EAL, "Unable to allocate device option\n");
 138                 return -ENOMEM;
 139         }
 140
 141         devopt->type = type;
 142         ret = snprintf(devopt->arg, optlen, "%s", optarg);
 143         if (ret < 0) {
 144                 RTE_LOG(ERR, EAL, "Unable to copy device option\n");
 145                 free(devopt);
 146                 return -EINVAL;
 147         }
 148         TAILQ_INSERT_TAIL(&devopt_list, devopt, next);
 149         return 0;
 150 }
 151
 152 int
 153 eal_option_device_parse(void)
 154 {
 155         struct device_option *devopt;
 156         void *tmp;
 157         int ret = 0;
 158
 159         TAILQ_FOREACH_SAFE(devopt, &devopt_list, next, tmp) {
 160                 if (ret == 0) {
 161                         ret = rte_devargs_add(devopt->type, devopt->arg);
 162                         if (ret)
 163                                 RTE_LOG(ERR, EAL, "Unable to parse device '%s'\n",
 164                                         devopt->arg);
 165                 }
 166                 TAILQ_REMOVE(&devopt_list, devopt, next);
 167                 free(devopt);
 168         }
 169         return ret;
 170 }
 171
 172 const char *
 173 eal_get_hugefile_prefix(void)
 174 {
 175         if (internal_config.hugefile_prefix != NULL)
 176                 return internal_config.hugefile_prefix;
 177         return HUGEFILE_PREFIX_DEFAULT;
 178 }
 179
 180 void
 181 eal_reset_internal_config(struct internal_config *internal_cfg)
 182 {
 183         int i;
 184
 185         internal_cfg->memory = 0;
 186         internal_cfg->force_nrank = 0;
 187         internal_cfg->force_nchannel = 0;
 188         internal_cfg->hugefile_prefix = NULL;
 189         internal_cfg->hugepage_dir = NULL;
 190         internal_cfg->force_sockets = 0;
 191         /* zero out the NUMA config */
 192         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 193                 internal_cfg->socket_mem[i] = 0;
 194         internal_cfg->force_socket_limits = 0;
 195         /* zero out the NUMA limits config */
 196         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 197                 internal_cfg->socket_limit[i] = 0;
 198         /* zero out hugedir descriptors */
 199         for (i = 0; i < MAX_HUGEPAGE_SIZES; i++) {
 200                 memset(&internal_cfg->hugepage_info[i], 0,
 201                                 sizeof(internal_cfg->hugepage_info[0]));
 202                 internal_cfg->hugepage_info[i].lock_descriptor = -1;
 203         }
 204         internal_cfg->base_virtaddr = 0;
 205
 206         internal_cfg->syslog_facility = LOG_DAEMON;
 207
 208         /* if set to NONE, interrupt mode is determined automatically */
 209         internal_cfg->vfio_intr_mode = RTE_INTR_MODE_NONE;
 210
 211 #ifdef RTE_LIBEAL_USE_HPET
 212         internal_cfg->no_hpet = 0;
 213 #else
 214         internal_cfg->no_hpet = 1;
 215 #endif
 216         internal_cfg->vmware_tsc_map = 0;
 217         internal_cfg->create_uio_dev = 0;
 218         internal_cfg->iova_mode = RTE_IOVA_DC;
 219         internal_cfg->user_mbuf_pool_ops_name = NULL;
 220         CPU_ZERO(&internal_cfg->ctrl_cpuset);
 221         internal_cfg->init_complete = 0;
 222 }
 223
 224 static int
 225 eal_plugin_add(const char *path)
 226 {
 227         struct shared_driver *solib;
 228
 229         solib = malloc(sizeof(*solib));
 230         if (solib == NULL) {
 231                 RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
 232                 return -1;
 233         }
 234         memset(solib, 0, sizeof(*solib));
 235         strlcpy(solib->name, path, PATH_MAX-1);
 236         solib->name[PATH_MAX-1] = 0;
 237         TAILQ_INSERT_TAIL(&solib_list, solib, next);
 238
 239         return 0;
 240 }
 241
 242 static int
 243 eal_plugindir_init(const char *path)
 244 {
 245         DIR *d = NULL;
 246         struct dirent *dent = NULL;
 247         char sopath[PATH_MAX];
 248
 249         if (path == NULL || *path == '\0')
 250                 return 0;
 251
 252         d = opendir(path);
 253         if (d == NULL) {
 254                 RTE_LOG(ERR, EAL, "failed to open directory %s: %s\n",
 255                         path, strerror(errno));
 256                 return -1;
 257         }
 258
 259         while ((dent = readdir(d)) != NULL) {
 260                 struct stat sb;
 261
 262                 snprintf(sopath, PATH_MAX-1, "%s/%s", path, dent->d_name);
 263                 sopath[PATH_MAX-1] = 0;
 264
 265                 if (!(stat(sopath, &sb) == 0 && S_ISREG(sb.st_mode)))
 266                         continue;
 267
 268                 if (eal_plugin_add(sopath) == -1)
 269                         break;
 270         }
 271
 272         closedir(d);
 273         /* XXX this ignores failures from readdir() itself */
 274         return (dent == NULL) ? 0 : -1;
 275 }
 276
 277 int
 278 eal_plugins_init(void)
 279 {
 280         struct shared_driver *solib = NULL;
 281         struct stat sb;
 282
 283         if (*default_solib_dir != '\0' && stat(default_solib_dir, &sb) == 0 &&
 284                                 S_ISDIR(sb.st_mode))
 285                 eal_plugin_add(default_solib_dir);
 286
 287         TAILQ_FOREACH(solib, &solib_list, next) {
 288
 289                 if (stat(solib->name, &sb) == 0 && S_ISDIR(sb.st_mode)) {
 290                         if (eal_plugindir_init(solib->name) == -1) {
 291                                 RTE_LOG(ERR, EAL,
 292                                         "Cannot init plugin directory %s\n",
 293                                         solib->name);
 294                                 return -1;
 295                         }
 296                 } else {
 297                         RTE_LOG(DEBUG, EAL, "open shared lib %s\n",
 298                                 solib->name);
 299                         solib->lib_handle = dlopen(solib->name, RTLD_NOW);
 300                         if (solib->lib_handle == NULL) {
 301                                 RTE_LOG(ERR, EAL, "%s\n", dlerror());
 302                                 return -1;
 303                         }
 304                 }
 305
 306         }
 307         return 0;
 308 }
 309
 310 /*
 311  * Parse the coremask given as argument (hexadecimal string) and fill
 312  * the global configuration (core role and core count) with the parsed
 313  * value.
 314  */
 315 static int xdigit2val(unsigned char c)
 316 {
 317         int val;
 318
 319         if (isdigit(c))
 320                 val = c - '0';
 321         else if (isupper(c))
 322                 val = c - 'A' + 10;
 323         else
 324                 val = c - 'a' + 10;
 325         return val;
 326 }
 327
 328 static int
 329 eal_parse_service_coremask(const char *coremask)
 330 {
 331         struct rte_config *cfg = rte_eal_get_configuration();
 332         int i, j, idx = 0;
 333         unsigned int count = 0;
 334         char c;
 335         int val;
 336         uint32_t taken_lcore_count = 0;
 337
 338         if (coremask == NULL)
 339                 return -1;
 340         /* Remove all blank characters ahead and after .
 341          * Remove 0x/0X if exists.
 342          */
 343         while (isblank(*coremask))
 344                 coremask++;
 345         if (coremask[0] == '0' && ((coremask[1] == 'x')
 346                 || (coremask[1] == 'X')))
 347                 coremask += 2;
 348         i = strlen(coremask);
 349         while ((i > 0) && isblank(coremask[i - 1]))
 350                 i--;
 351
 352         if (i == 0)
 353                 return -1;
 354
 355         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 356                 c = coremask[i];
 357                 if (isxdigit(c) == 0) {
 358                         /* invalid characters */
 359                         return -1;
 360                 }
 361                 val = xdigit2val(c);
 362                 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE;
 363                                 j++, idx++) {
 364                         if ((1 << j) & val) {
 365                                 /* handle master lcore already parsed */
 366                                 uint32_t lcore = idx;
 367                                 if (master_lcore_parsed &&
 368                                                 cfg->master_lcore == lcore) {
 369                                         RTE_LOG(ERR, EAL,
 370                                                 "lcore %u is master lcore, cannot use as service core\n",
 371                                                 idx);
 372                                         return -1;
 373                                 }
 374
 375                                 if (!lcore_config[idx].detected) {
 376                                         RTE_LOG(ERR, EAL,
 377                                                 "lcore %u unavailable\n", idx);
 378                                         return -1;
 379                                 }
 380
 381                                 if (cfg->lcore_role[idx] == ROLE_RTE)
 382                                         taken_lcore_count++;
 383
 384                                 lcore_config[idx].core_role = ROLE_SERVICE;
 385                                 count++;
 386                         }
 387                 }
 388         }
 389
 390         for (; i >= 0; i--)
 391                 if (coremask[i] != '0')
 392                         return -1;
 393
 394         for (; idx < RTE_MAX_LCORE; idx++)
 395                 lcore_config[idx].core_index = -1;
 396
 397         if (count == 0)
 398                 return -1;
 399
 400         if (core_parsed && taken_lcore_count != count) {
 401                 RTE_LOG(WARNING, EAL,
 402                         "Not all service cores are in the coremask. "
 403                         "Please ensure -c or -l includes service cores\n");
 404         }
 405
 406         cfg->service_lcore_count = count;
 407         return 0;
 408 }
 409
 410 static int
 411 eal_service_cores_parsed(void)
 412 {
 413         int idx;
 414         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 415                 if (lcore_config[idx].core_role == ROLE_SERVICE)
 416                         return 1;
 417         }
 418         return 0;
 419 }
 420
 421 static int
 422 eal_parse_coremask(const char *coremask)
 423 {
 424         struct rte_config *cfg = rte_eal_get_configuration();
 425         int i, j, idx = 0;
 426         unsigned count = 0;
 427         char c;
 428         int val;
 429
 430         if (eal_service_cores_parsed())
 431                 RTE_LOG(WARNING, EAL,
 432                         "Service cores parsed before dataplane cores. "
 433                         "Please ensure -c is before -s or -S\n");
 434
 435         if (coremask == NULL)
 436                 return -1;
 437         /* Remove all blank characters ahead and after .
 438          * Remove 0x/0X if exists.
 439          */
 440         while (isblank(*coremask))
 441                 coremask++;
 442         if (coremask[0] == '0' && ((coremask[1] == 'x')
 443                 || (coremask[1] == 'X')))
 444                 coremask += 2;
 445         i = strlen(coremask);
 446         while ((i > 0) && isblank(coremask[i - 1]))
 447                 i--;
 448         if (i == 0)
 449                 return -1;
 450
 451         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 452                 c = coremask[i];
 453                 if (isxdigit(c) == 0) {
 454                         /* invalid characters */
 455                         return -1;
 456                 }
 457                 val = xdigit2val(c);
 458                 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++)
 459                 {
 460                         if ((1 << j) & val) {
 461                                 if (!lcore_config[idx].detected) {
 462                                         RTE_LOG(ERR, EAL, "lcore %u "
 463                                                 "unavailable\n", idx);
 464                                         return -1;
 465                                 }
 466
 467                                 cfg->lcore_role[idx] = ROLE_RTE;
 468                                 lcore_config[idx].core_index = count;
 469                                 count++;
 470                         } else {
 471                                 cfg->lcore_role[idx] = ROLE_OFF;
 472                                 lcore_config[idx].core_index = -1;
 473                         }
 474                 }
 475         }
 476         for (; i >= 0; i--)
 477                 if (coremask[i] != '0')
 478                         return -1;
 479         for (; idx < RTE_MAX_LCORE; idx++) {
 480                 cfg->lcore_role[idx] = ROLE_OFF;
 481                 lcore_config[idx].core_index = -1;
 482         }
 483         if (count == 0)
 484                 return -1;
 485         /* Update the count of enabled logical cores of the EAL configuration */
 486         cfg->lcore_count = count;
 487         return 0;
 488 }
 489
 490 static int
 491 eal_parse_service_corelist(const char *corelist)
 492 {
 493         struct rte_config *cfg = rte_eal_get_configuration();
 494         int i, idx = 0;
 495         unsigned count = 0;
 496         char *end = NULL;
 497         int min, max;
 498         uint32_t taken_lcore_count = 0;
 499
 500         if (corelist == NULL)
 501                 return -1;
 502
 503         /* Remove all blank characters ahead and after */
 504         while (isblank(*corelist))
 505                 corelist++;
 506         i = strlen(corelist);
 507         while ((i > 0) && isblank(corelist[i - 1]))
 508                 i--;
 509
 510         /* Get list of cores */
 511         min = RTE_MAX_LCORE;
 512         do {
 513                 while (isblank(*corelist))
 514                         corelist++;
 515                 if (*corelist == '\0')
 516                         return -1;
 517                 errno = 0;
 518                 idx = strtoul(corelist, &end, 10);
 519                 if (errno || end == NULL)
 520                         return -1;
 521                 while (isblank(*end))
 522                         end++;
 523                 if (*end == '-') {
 524                         min = idx;
 525                 } else if ((*end == ',') || (*end == '\0')) {
 526                         max = idx;
 527                         if (min == RTE_MAX_LCORE)
 528                                 min = idx;
 529                         for (idx = min; idx <= max; idx++) {
 530                                 if (cfg->lcore_role[idx] != ROLE_SERVICE) {
 531                                         /* handle master lcore already parsed */
 532                                         uint32_t lcore = idx;
 533                                         if (cfg->master_lcore == lcore &&
 534                                                         master_lcore_parsed) {
 535                                                 RTE_LOG(ERR, EAL,
 536                                                         "Error: lcore %u is master lcore, cannot use as service core\n",
 537                                                         idx);
 538                                                 return -1;
 539                                         }
 540                                         if (cfg->lcore_role[idx] == ROLE_RTE)
 541                                                 taken_lcore_count++;
 542
 543                                         lcore_config[idx].core_role =
 544                                                         ROLE_SERVICE;
 545                                         count++;
 546                                 }
 547                         }
 548                         min = RTE_MAX_LCORE;
 549                 } else
 550                         return -1;
 551                 corelist = end + 1;
 552         } while (*end != '\0');
 553
 554         if (count == 0)
 555                 return -1;
 556
 557         if (core_parsed && taken_lcore_count != count) {
 558                 RTE_LOG(WARNING, EAL,
 559                         "Not all service cores were in the coremask. "
 560                         "Please ensure -c or -l includes service cores\n");
 561         }
 562
 563         return 0;
 564 }
 565
 566 static int
 567 eal_parse_corelist(const char *corelist)
 568 {
 569         struct rte_config *cfg = rte_eal_get_configuration();
 570         unsigned count = 0;
 571         char *end = NULL;
 572         int min, max;
 573         int idx;
 574
 575         if (eal_service_cores_parsed())
 576                 RTE_LOG(WARNING, EAL,
 577                         "Service cores parsed before dataplane cores. "
 578                         "Please ensure -l is before -s or -S\n");
 579
 580         if (corelist == NULL)
 581                 return -1;
 582
 583         /* Remove all blank characters ahead */
 584         while (isblank(*corelist))
 585                 corelist++;
 586
 587         /* Reset config */
 588         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 589                 cfg->lcore_role[idx] = ROLE_OFF;
 590                 lcore_config[idx].core_index = -1;
 591         }
 592
 593         /* Get list of cores */
 594         min = RTE_MAX_LCORE;
 595         do {
 596                 while (isblank(*corelist))
 597                         corelist++;
 598                 if (*corelist == '\0')
 599                         return -1;
 600                 errno = 0;
 601                 idx = strtol(corelist, &end, 10);
 602                 if (idx < 0 || idx >= (int)cfg->lcore_count)
 603                         return -1;
 604                 if (errno || end == NULL)
 605                         return -1;
 606                 while (isblank(*end))
 607                         end++;
 608                 if (*end == '-') {
 609                         min = idx;
 610                 } else if ((*end == ',') || (*end == '\0')) {
 611                         max = idx;
 612                         if (min == RTE_MAX_LCORE)
 613                                 min = idx;
 614                         for (idx = min; idx <= max; idx++) {
 615                                 if (cfg->lcore_role[idx] != ROLE_RTE) {
 616                                         cfg->lcore_role[idx] = ROLE_RTE;
 617                                         lcore_config[idx].core_index = count;
 618                                         count++;
 619                                 }
 620                         }
 621                         min = RTE_MAX_LCORE;
 622                 } else
 623                         return -1;
 624                 corelist = end + 1;
 625         } while (*end != '\0');
 626
 627         if (count == 0)
 628                 return -1;
 629
 630         /* Update the count of enabled logical cores of the EAL configuration */
 631         cfg->lcore_count = count;
 632
 633         return 0;
 634 }
 635
 636 /* Changes the lcore id of the master thread */
 637 static int
 638 eal_parse_master_lcore(const char *arg)
 639 {
 640         char *parsing_end;
 641         struct rte_config *cfg = rte_eal_get_configuration();
 642
 643         errno = 0;
 644         cfg->master_lcore = (uint32_t) strtol(arg, &parsing_end, 0);
 645         if (errno || parsing_end[0] != 0)
 646                 return -1;
 647         if (cfg->master_lcore >= RTE_MAX_LCORE)
 648                 return -1;
 649         master_lcore_parsed = 1;
 650
 651         /* ensure master core is not used as service core */
 652         if (lcore_config[cfg->master_lcore].core_role == ROLE_SERVICE) {
 653                 RTE_LOG(ERR, EAL,
 654                         "Error: Master lcore is used as a service core\n");
 655                 return -1;
 656         }
 657
 658         return 0;
 659 }
 660
 661 /*
 662  * Parse elem, the elem could be single number/range or '(' ')' group
 663  * 1) A single number elem, it's just a simple digit. e.g. 9
 664  * 2) A single range elem, two digits with a '-' between. e.g. 2-6
 665  * 3) A group elem, combines multiple 1) or 2) with '( )'. e.g (0,2-4,6)
 666  *    Within group elem, '-' used for a range separator;
 667  *                       ',' used for a single number.
 668  */
 669 static int
 670 eal_parse_set(const char *input, uint16_t set[], unsigned num)
 671 {
 672         unsigned idx;
 673         const char *str = input;
 674         char *end = NULL;
 675         unsigned min, max;
 676
 677         memset(set, 0, num * sizeof(uint16_t));
 678
 679         while (isblank(*str))
 680                 str++;
 681
 682         /* only digit or left bracket is qualify for start point */
 683         if ((!isdigit(*str) && *str != '(') || *str == '\0')
 684                 return -1;
 685
 686         /* process single number or single range of number */
 687         if (*str != '(') {
 688                 errno = 0;
 689                 idx = strtoul(str, &end, 10);
 690                 if (errno || end == NULL || idx >= num)
 691                         return -1;
 692                 else {
 693                         while (isblank(*end))
 694                                 end++;
 695
 696                         min = idx;
 697                         max = idx;
 698                         if (*end == '-') {
 699                                 /* process single <number>-<number> */
 700                                 end++;
 701                                 while (isblank(*end))
 702                                         end++;
 703                                 if (!isdigit(*end))
 704                                         return -1;
 705
 706                                 errno = 0;
 707                                 idx = strtoul(end, &end, 10);
 708                                 if (errno || end == NULL || idx >= num)
 709                                         return -1;
 710                                 max = idx;
 711                                 while (isblank(*end))
 712                                         end++;
 713                                 if (*end != ',' && *end != '\0')
 714                                         return -1;
 715                         }
 716
 717                         if (*end != ',' && *end != '\0' &&
 718                             *end != '@')
 719                                 return -1;
 720
 721                         for (idx = RTE_MIN(min, max);
 722                              idx <= RTE_MAX(min, max); idx++)
 723                                 set[idx] = 1;
 724
 725                         return end - input;
 726                 }
 727         }
 728
 729         /* process set within bracket */
 730         str++;
 731         while (isblank(*str))
 732                 str++;
 733         if (*str == '\0')
 734                 return -1;
 735
 736         min = RTE_MAX_LCORE;
 737         do {
 738
 739                 /* go ahead to the first digit */
 740                 while (isblank(*str))
 741                         str++;
 742                 if (!isdigit(*str))
 743                         return -1;
 744
 745                 /* get the digit value */
 746                 errno = 0;
 747                 idx = strtoul(str, &end, 10);
 748                 if (errno || end == NULL || idx >= num)
 749                         return -1;
 750
 751                 /* go ahead to separator '-',',' and ')' */
 752                 while (isblank(*end))
 753                         end++;
 754                 if (*end == '-') {
 755                         if (min == RTE_MAX_LCORE)
 756                                 min = idx;
 757                         else /* avoid continuous '-' */
 758                                 return -1;
 759                 } else if ((*end == ',') || (*end == ')')) {
 760                         max = idx;
 761                         if (min == RTE_MAX_LCORE)
 762                                 min = idx;
 763                         for (idx = RTE_MIN(min, max);
 764                              idx <= RTE_MAX(min, max); idx++)
 765                                 set[idx] = 1;
 766
 767                         min = RTE_MAX_LCORE;
 768                 } else
 769                         return -1;
 770
 771                 str = end + 1;
 772         } while (*end != '\0' && *end != ')');
 773
 774         /*
 775          * to avoid failure that tail blank makes end character check fail
 776          * in eal_parse_lcores( )
 777          */
 778         while (isblank(*str))
 779                 str++;
 780
 781         return str - input;
 782 }
 783
 784 /* convert from set array to cpuset bitmap */
 785 static int
 786 convert_to_cpuset(rte_cpuset_t *cpusetp,
 787               uint16_t *set, unsigned num)
 788 {
 789         unsigned idx;
 790
 791         CPU_ZERO(cpusetp);
 792
 793         for (idx = 0; idx < num; idx++) {
 794                 if (!set[idx])
 795                         continue;
 796
 797                 if (!lcore_config[idx].detected) {
 798                         RTE_LOG(ERR, EAL, "core %u "
 799                                 "unavailable\n", idx);
 800                         return -1;
 801                 }
 802
 803                 CPU_SET(idx, cpusetp);
 804         }
 805
 806         return 0;
 807 }
 808
 809 /*
 810  * The format pattern: --lcores='<lcores[@cpus]>[<,lcores[@cpus]>...]'
 811  * lcores, cpus could be a single digit/range or a group.
 812  * '(' and ')' are necessary if it's a group.
 813  * If not supply '@cpus', the value of cpus uses the same as lcores.
 814  * e.g. '1,2@(5-7),(3-5)@(0,2),(0,6),7-8' means start 9 EAL thread as below
 815  *   lcore 0 runs on cpuset 0x41 (cpu 0,6)
 816  *   lcore 1 runs on cpuset 0x2 (cpu 1)
 817  *   lcore 2 runs on cpuset 0xe0 (cpu 5,6,7)
 818  *   lcore 3,4,5 runs on cpuset 0x5 (cpu 0,2)
 819  *   lcore 6 runs on cpuset 0x41 (cpu 0,6)
 820  *   lcore 7 runs on cpuset 0x80 (cpu 7)
 821  *   lcore 8 runs on cpuset 0x100 (cpu 8)
 822  */
 823 static int
 824 eal_parse_lcores(const char *lcores)
 825 {
 826         struct rte_config *cfg = rte_eal_get_configuration();
 827         static uint16_t set[RTE_MAX_LCORE];
 828         unsigned idx = 0;
 829         unsigned count = 0;
 830         const char *lcore_start = NULL;
 831         const char *end = NULL;
 832         int offset;
 833         rte_cpuset_t cpuset;
 834         int lflags;
 835         int ret = -1;
 836
 837         if (lcores == NULL)
 838                 return -1;
 839
 840         /* Remove all blank characters ahead and after */
 841         while (isblank(*lcores))
 842                 lcores++;
 843
 844         CPU_ZERO(&cpuset);
 845
 846         /* Reset lcore config */
 847         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 848                 cfg->lcore_role[idx] = ROLE_OFF;
 849                 lcore_config[idx].core_index = -1;
 850                 CPU_ZERO(&lcore_config[idx].cpuset);
 851         }
 852
 853         /* Get list of cores */
 854         do {
 855                 while (isblank(*lcores))
 856                         lcores++;
 857                 if (*lcores == '\0')
 858                         goto err;
 859
 860                 lflags = 0;
 861
 862                 /* record lcore_set start point */
 863                 lcore_start = lcores;
 864
 865                 /* go across a complete bracket */
 866                 if (*lcore_start == '(') {
 867                         lcores += strcspn(lcores, ")");
 868                         if (*lcores++ == '\0')
 869                                 goto err;
 870                 }
 871
 872                 /* scan the separator '@', ','(next) or '\0'(finish) */
 873                 lcores += strcspn(lcores, "@,");
 874
 875                 if (*lcores == '@') {
 876                         /* explicit assign cpu_set */
 877                         offset = eal_parse_set(lcores + 1, set, RTE_DIM(set));
 878                         if (offset < 0)
 879                                 goto err;
 880
 881                         /* prepare cpu_set and update the end cursor */
 882                         if (0 > convert_to_cpuset(&cpuset,
 883                                                   set, RTE_DIM(set)))
 884                                 goto err;
 885                         end = lcores + 1 + offset;
 886                 } else { /* ',' or '\0' */
 887                         /* haven't given cpu_set, current loop done */
 888                         end = lcores;
 889
 890                         /* go back to check <number>-<number> */
 891                         offset = strcspn(lcore_start, "(-");
 892                         if (offset < (end - lcore_start) &&
 893                             *(lcore_start + offset) != '(')
 894                                 lflags = 1;
 895                 }
 896
 897                 if (*end != ',' && *end != '\0')
 898                         goto err;
 899
 900                 /* parse lcore_set from start point */
 901                 if (0 > eal_parse_set(lcore_start, set, RTE_DIM(set)))
 902                         goto err;
 903
 904                 /* without '@', by default using lcore_set as cpu_set */
 905                 if (*lcores != '@' &&
 906                     0 > convert_to_cpuset(&cpuset, set, RTE_DIM(set)))
 907                         goto err;
 908
 909                 /* start to update lcore_set */
 910                 for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 911                         if (!set[idx])
 912                                 continue;
 913
 914                         if (cfg->lcore_role[idx] != ROLE_RTE) {
 915                                 lcore_config[idx].core_index = count;
 916                                 cfg->lcore_role[idx] = ROLE_RTE;
 917                                 count++;
 918                         }
 919
 920                         if (lflags) {
 921                                 CPU_ZERO(&cpuset);
 922                                 CPU_SET(idx, &cpuset);
 923                         }
 924                         rte_memcpy(&lcore_config[idx].cpuset, &cpuset,
 925                                    sizeof(rte_cpuset_t));
 926                 }
 927
 928                 lcores = end + 1;
 929         } while (*end != '\0');
 930
 931         if (count == 0)
 932                 goto err;
 933
 934         cfg->lcore_count = count;
 935         ret = 0;
 936
 937 err:
 938
 939         return ret;
 940 }
 941
 942 static int
 943 eal_parse_syslog(const char *facility, struct internal_config *conf)
 944 {
 945         int i;
 946         static const struct {
 947                 const char *name;
 948                 int value;
 949         } map[] = {
 950                 { "auth", LOG_AUTH },
 951                 { "cron", LOG_CRON },
 952                 { "daemon", LOG_DAEMON },
 953                 { "ftp", LOG_FTP },
 954                 { "kern", LOG_KERN },
 955                 { "lpr", LOG_LPR },
 956                 { "mail", LOG_MAIL },
 957                 { "news", LOG_NEWS },
 958                 { "syslog", LOG_SYSLOG },
 959                 { "user", LOG_USER },
 960                 { "uucp", LOG_UUCP },
 961                 { "local0", LOG_LOCAL0 },
 962                 { "local1", LOG_LOCAL1 },
 963                 { "local2", LOG_LOCAL2 },
 964                 { "local3", LOG_LOCAL3 },
 965                 { "local4", LOG_LOCAL4 },
 966                 { "local5", LOG_LOCAL5 },
 967                 { "local6", LOG_LOCAL6 },
 968                 { "local7", LOG_LOCAL7 },
 969                 { NULL, 0 }
 970         };
 971
 972         for (i = 0; map[i].name; i++) {
 973                 if (!strcmp(facility, map[i].name)) {
 974                         conf->syslog_facility = map[i].value;
 975                         return 0;
 976                 }
 977         }
 978         return -1;
 979 }
 980
 981 static int
 982 eal_parse_log_priority(const char *level)
 983 {
 984         static const char * const levels[] = {
 985                 [RTE_LOG_EMERG]   = "emergency",
 986                 [RTE_LOG_ALERT]   = "alert",
 987                 [RTE_LOG_CRIT]    = "critical",
 988                 [RTE_LOG_ERR]     = "error",
 989                 [RTE_LOG_WARNING] = "warning",
 990                 [RTE_LOG_NOTICE]  = "notice",
 991                 [RTE_LOG_INFO]    = "info",
 992                 [RTE_LOG_DEBUG]   = "debug",
 993         };
 994         size_t len = strlen(level);
 995         unsigned long tmp;
 996         char *end;
 997         unsigned int i;
 998
 999         if (len == 0)
1000                 return -1;
1001
1002         /* look for named values, skip 0 which is not a valid level */
1003         for (i = 1; i < RTE_DIM(levels); i++) {
1004                 if (strncmp(levels[i], level, len) == 0)
1005                         return i;
1006         }
1007
1008         /* not a string, maybe it is numeric */
1009         errno = 0;
1010         tmp = strtoul(level, &end, 0);
1011
1012         /* check for errors */
1013         if (errno != 0 || end == NULL || *end != '\0' ||
1014             tmp >= UINT32_MAX)
1015                 return -1;
1016
1017         return tmp;
1018 }
1019
1020 static int
1021 eal_parse_log_level(const char *arg)
1022 {
1023         const char *pattern = NULL;
1024         const char *regex = NULL;
1025         char *str, *level;
1026         int priority;
1027
1028         str = strdup(arg);
1029         if (str == NULL)
1030                 return -1;
1031
1032         if ((level = strchr(str, ','))) {
1033                 regex = str;
1034                 *level++ = '\0';
1035         } else if ((level = strchr(str, ':'))) {
1036                 pattern = str;
1037                 *level++ = '\0';
1038         } else {
1039                 level = str;
1040         }
1041
1042         priority = eal_parse_log_priority(level);
1043         if (priority < 0) {
1044                 fprintf(stderr, "invalid log priority: %s\n", level);
1045                 goto fail;
1046         }
1047
1048         if (regex) {
1049                 if (rte_log_set_level_regexp(regex, priority) < 0) {
1050                         fprintf(stderr, "cannot set log level %s,%d\n",
1051                                 pattern, priority);
1052                         goto fail;
1053                 }
1054                 if (rte_log_save_regexp(regex, priority) < 0)
1055                         goto fail;
1056         } else if (pattern) {
1057                 if (rte_log_set_level_pattern(pattern, priority) < 0) {
1058                         fprintf(stderr, "cannot set log level %s:%d\n",
1059                                 pattern, priority);
1060                         goto fail;
1061                 }
1062                 if (rte_log_save_pattern(pattern, priority) < 0)
1063                         goto fail;
1064         } else {
1065                 rte_log_set_global_level(priority);
1066         }
1067
1068         free(str);
1069         return 0;
1070
1071 fail:
1072         free(str);
1073         return -1;
1074 }
1075
1076 static enum rte_proc_type_t
1077 eal_parse_proc_type(const char *arg)
1078 {
1079         if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
1080                 return RTE_PROC_PRIMARY;
1081         if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
1082                 return RTE_PROC_SECONDARY;
1083         if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
1084                 return RTE_PROC_AUTO;
1085
1086         return RTE_PROC_INVALID;
1087 }
1088
1089 static int
1090 eal_parse_iova_mode(const char *name)
1091 {
1092         int mode;
1093
1094         if (name == NULL)
1095                 return -1;
1096
1097         if (!strcmp("pa", name))
1098                 mode = RTE_IOVA_PA;
1099         else if (!strcmp("va", name))
1100                 mode = RTE_IOVA_VA;
1101         else
1102                 return -1;
1103
1104         internal_config.iova_mode = mode;
1105         return 0;
1106 }
1107
1108 int
1109 eal_parse_common_option(int opt, const char *optarg,
1110                         struct internal_config *conf)
1111 {
1112         static int b_used;
1113         static int w_used;
1114         struct rte_config *cfg = rte_eal_get_configuration();
1115
1116         switch (opt) {
1117         /* blacklist */
1118         case 'b':
1119                 if (w_used)
1120                         goto bw_used;
1121                 if (eal_option_device_add(RTE_DEVTYPE_BLACKLISTED_PCI,
1122                                 optarg) < 0) {
1123                         return -1;
1124                 }
1125                 b_used = 1;
1126                 break;
1127         /* whitelist */
1128         case 'w':
1129                 if (b_used)
1130                         goto bw_used;
1131                 if (eal_option_device_add(RTE_DEVTYPE_WHITELISTED_PCI,
1132                                 optarg) < 0) {
1133                         return -1;
1134                 }
1135                 w_used = 1;
1136                 break;
1137         /* coremask */
1138         case 'c':
1139                 if (eal_parse_coremask(optarg) < 0) {
1140                         RTE_LOG(ERR, EAL, "invalid coremask\n");
1141                         return -1;
1142                 }
1143
1144                 if (core_parsed) {
1145                         RTE_LOG(ERR, EAL, "Option -c is ignored, because (%s) is set!\n",
1146                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1147                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1148                                 "-c");
1149                         return -1;
1150                 }
1151
1152                 core_parsed = LCORE_OPT_MSK;
1153                 break;
1154         /* corelist */
1155         case 'l':
1156                 if (eal_parse_corelist(optarg) < 0) {
1157                         RTE_LOG(ERR, EAL,
1158                                 "invalid core list, please check core numbers are in [0, %u] range\n",
1159                                         cfg->lcore_count-1);
1160                         return -1;
1161                 }
1162
1163                 if (core_parsed) {
1164                         RTE_LOG(ERR, EAL, "Option -l is ignored, because (%s) is set!\n",
1165                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1166                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1167                                 "-l");
1168                         return -1;
1169                 }
1170
1171                 core_parsed = LCORE_OPT_LST;
1172                 break;
1173         /* service coremask */
1174         case 's':
1175                 if (eal_parse_service_coremask(optarg) < 0) {
1176                         RTE_LOG(ERR, EAL, "invalid service coremask\n");
1177                         return -1;
1178                 }
1179                 break;
1180         /* service corelist */
1181         case 'S':
1182                 if (eal_parse_service_corelist(optarg) < 0) {
1183                         RTE_LOG(ERR, EAL, "invalid service core list\n");
1184                         return -1;
1185                 }
1186                 break;
1187         /* size of memory */
1188         case 'm':
1189                 conf->memory = atoi(optarg);
1190                 conf->memory *= 1024ULL;
1191                 conf->memory *= 1024ULL;
1192                 mem_parsed = 1;
1193                 break;
1194         /* force number of channels */
1195         case 'n':
1196                 conf->force_nchannel = atoi(optarg);
1197                 if (conf->force_nchannel == 0) {
1198                         RTE_LOG(ERR, EAL, "invalid channel number\n");
1199                         return -1;
1200                 }
1201                 break;
1202         /* force number of ranks */
1203         case 'r':
1204                 conf->force_nrank = atoi(optarg);
1205                 if (conf->force_nrank == 0 ||
1206                     conf->force_nrank > 16) {
1207                         RTE_LOG(ERR, EAL, "invalid rank number\n");
1208                         return -1;
1209                 }
1210                 break;
1211         /* force loading of external driver */
1212         case 'd':
1213                 if (eal_plugin_add(optarg) == -1)
1214                         return -1;
1215                 break;
1216         case 'v':
1217                 /* since message is explicitly requested by user, we
1218                  * write message at highest log level so it can always
1219                  * be seen
1220                  * even if info or warning messages are disabled */
1221                 RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
1222                 break;
1223
1224         /* long options */
1225         case OPT_HUGE_UNLINK_NUM:
1226                 conf->hugepage_unlink = 1;
1227                 break;
1228
1229         case OPT_NO_HUGE_NUM:
1230                 conf->no_hugetlbfs = 1;
1231                 /* no-huge is legacy mem */
1232                 conf->legacy_mem = 1;
1233                 break;
1234
1235         case OPT_NO_PCI_NUM:
1236                 conf->no_pci = 1;
1237                 break;
1238
1239         case OPT_NO_HPET_NUM:
1240                 conf->no_hpet = 1;
1241                 break;
1242
1243         case OPT_VMWARE_TSC_MAP_NUM:
1244                 conf->vmware_tsc_map = 1;
1245                 break;
1246
1247         case OPT_NO_SHCONF_NUM:
1248                 conf->no_shconf = 1;
1249                 break;
1250
1251         case OPT_IN_MEMORY_NUM:
1252                 conf->in_memory = 1;
1253                 /* in-memory is a superset of noshconf and huge-unlink */
1254                 conf->no_shconf = 1;
1255                 conf->hugepage_unlink = 1;
1256                 break;
1257
1258         case OPT_PROC_TYPE_NUM:
1259                 conf->process_type = eal_parse_proc_type(optarg);
1260                 break;
1261
1262         case OPT_MASTER_LCORE_NUM:
1263                 if (eal_parse_master_lcore(optarg) < 0) {
1264                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1265                                         OPT_MASTER_LCORE "\n");
1266                         return -1;
1267                 }
1268                 break;
1269
1270         case OPT_VDEV_NUM:
1271                 if (eal_option_device_add(RTE_DEVTYPE_VIRTUAL,
1272                                 optarg) < 0) {
1273                         return -1;
1274                 }
1275                 break;
1276
1277         case OPT_SYSLOG_NUM:
1278                 if (eal_parse_syslog(optarg, conf) < 0) {
1279                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1280                                         OPT_SYSLOG "\n");
1281                         return -1;
1282                 }
1283                 break;
1284
1285         case OPT_LOG_LEVEL_NUM: {
1286                 if (eal_parse_log_level(optarg) < 0) {
1287                         RTE_LOG(ERR, EAL,
1288                                 "invalid parameters for --"
1289                                 OPT_LOG_LEVEL "\n");
1290                         return -1;
1291                 }
1292                 break;
1293         }
1294         case OPT_LCORES_NUM:
1295                 if (eal_parse_lcores(optarg) < 0) {
1296                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1297                                 OPT_LCORES "\n");
1298                         return -1;
1299                 }
1300
1301                 if (core_parsed) {
1302                         RTE_LOG(ERR, EAL, "Option --lcore is ignored, because (%s) is set!\n",
1303                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1304                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1305                                 "--lcore");
1306                         return -1;
1307                 }
1308
1309                 core_parsed = LCORE_OPT_MAP;
1310                 break;
1311         case OPT_LEGACY_MEM_NUM:
1312                 conf->legacy_mem = 1;
1313                 break;
1314         case OPT_SINGLE_FILE_SEGMENTS_NUM:
1315                 conf->single_file_segments = 1;
1316                 break;
1317         case OPT_IOVA_MODE_NUM:
1318                 if (eal_parse_iova_mode(optarg) < 0) {
1319                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1320                                 OPT_IOVA_MODE "\n");
1321                         return -1;
1322                 }
1323                 break;
1324
1325         /* don't know what to do, leave this to caller */
1326         default:
1327                 return 1;
1328
1329         }
1330
1331         return 0;
1332 bw_used:
1333         RTE_LOG(ERR, EAL, "Options blacklist (-b) and whitelist (-w) "
1334                 "cannot be used at the same time\n");
1335         return -1;
1336 }
1337
1338 static void
1339 eal_auto_detect_cores(struct rte_config *cfg)
1340 {
1341         unsigned int lcore_id;
1342         unsigned int removed = 0;
1343         rte_cpuset_t affinity_set;
1344
1345         if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1346                                 &affinity_set))
1347                 CPU_ZERO(&affinity_set);
1348
1349         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1350                 if (cfg->lcore_role[lcore_id] == ROLE_RTE &&
1351                     !CPU_ISSET(lcore_id, &affinity_set)) {
1352                         cfg->lcore_role[lcore_id] = ROLE_OFF;
1353                         removed++;
1354                 }
1355         }
1356
1357         cfg->lcore_count -= removed;
1358 }
1359
1360 static void
1361 compute_ctrl_threads_cpuset(struct internal_config *internal_cfg)
1362 {
1363         rte_cpuset_t *cpuset = &internal_cfg->ctrl_cpuset;
1364         rte_cpuset_t default_set;
1365         unsigned int lcore_id;
1366
1367         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1368                 if (eal_cpu_detected(lcore_id) &&
1369                                 rte_lcore_has_role(lcore_id, ROLE_OFF)) {
1370                         CPU_SET(lcore_id, cpuset);
1371                 }
1372         }
1373
1374         if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1375                                 &default_set))
1376                 CPU_ZERO(&default_set);
1377
1378         RTE_CPU_AND(cpuset, cpuset, &default_set);
1379
1380         /* if no detected CPU is off, use master core */
1381         if (!CPU_COUNT(cpuset))
1382                 CPU_SET(rte_get_master_lcore(), cpuset);
1383 }
1384
1385 int
1386 eal_cleanup_config(struct internal_config *internal_cfg)
1387 {
1388         if (internal_cfg->hugefile_prefix != NULL)
1389                 free(internal_cfg->hugefile_prefix);
1390         if (internal_cfg->hugepage_dir != NULL)
1391                 free(internal_cfg->hugepage_dir);
1392         if (internal_cfg->user_mbuf_pool_ops_name != NULL)
1393                 free(internal_cfg->user_mbuf_pool_ops_name);
1394
1395         return 0;
1396 }
1397
1398 int
1399 eal_adjust_config(struct internal_config *internal_cfg)
1400 {
1401         int i;
1402         struct rte_config *cfg = rte_eal_get_configuration();
1403
1404         if (!core_parsed)
1405                 eal_auto_detect_cores(cfg);
1406
1407         if (internal_config.process_type == RTE_PROC_AUTO)
1408                 internal_config.process_type = eal_proc_type_detect();
1409
1410         /* default master lcore is the first one */
1411         if (!master_lcore_parsed) {
1412                 cfg->master_lcore = rte_get_next_lcore(-1, 0, 0);
1413                 if (cfg->master_lcore >= RTE_MAX_LCORE)
1414                         return -1;
1415                 lcore_config[cfg->master_lcore].core_role = ROLE_RTE;
1416         }
1417
1418         compute_ctrl_threads_cpuset(internal_cfg);
1419
1420         /* if no memory amounts were requested, this will result in 0 and
1421          * will be overridden later, right after eal_hugepage_info_init() */
1422         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
1423                 internal_cfg->memory += internal_cfg->socket_mem[i];
1424
1425         return 0;
1426 }
1427
1428 int
1429 eal_check_common_options(struct internal_config *internal_cfg)
1430 {
1431         struct rte_config *cfg = rte_eal_get_configuration();
1432
1433         if (cfg->lcore_role[cfg->master_lcore] != ROLE_RTE) {
1434                 RTE_LOG(ERR, EAL, "Master lcore is not enabled for DPDK\n");
1435                 return -1;
1436         }
1437
1438         if (internal_cfg->process_type == RTE_PROC_INVALID) {
1439                 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
1440                 return -1;
1441         }
1442         if (internal_cfg->hugefile_prefix != NULL &&
1443                         strlen(internal_cfg->hugefile_prefix) < 1) {
1444                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_FILE_PREFIX " option\n");
1445                 return -1;
1446         }
1447         if (internal_cfg->hugepage_dir != NULL &&
1448                         strlen(internal_cfg->hugepage_dir) < 1) {
1449                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_HUGE_DIR" option\n");
1450                 return -1;
1451         }
1452         if (internal_cfg->user_mbuf_pool_ops_name != NULL &&
1453                         strlen(internal_cfg->user_mbuf_pool_ops_name) < 1) {
1454                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_MBUF_POOL_OPS_NAME" option\n");
1455                 return -1;
1456         }
1457         if (index(eal_get_hugefile_prefix(), '%') != NULL) {
1458                 RTE_LOG(ERR, EAL, "Invalid char, '%%', in --"OPT_FILE_PREFIX" "
1459                         "option\n");
1460                 return -1;
1461         }
1462         if (mem_parsed && internal_cfg->force_sockets == 1) {
1463                 RTE_LOG(ERR, EAL, "Options -m and --"OPT_SOCKET_MEM" cannot "
1464                         "be specified at the same time\n");
1465                 return -1;
1466         }
1467         if (internal_cfg->no_hugetlbfs && internal_cfg->force_sockets == 1) {
1468                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_MEM" cannot "
1469                         "be specified together with --"OPT_NO_HUGE"\n");
1470                 return -1;
1471         }
1472         if (internal_cfg->no_hugetlbfs && internal_cfg->hugepage_unlink &&
1473                         !internal_cfg->in_memory) {
1474                 RTE_LOG(ERR, EAL, "Option --"OPT_HUGE_UNLINK" cannot "
1475                         "be specified together with --"OPT_NO_HUGE"\n");
1476                 return -1;
1477         }
1478         if (internal_config.force_socket_limits && internal_config.legacy_mem) {
1479                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_LIMIT
1480                         " is only supported in non-legacy memory mode\n");
1481         }
1482         if (internal_cfg->single_file_segments &&
1483                         internal_cfg->hugepage_unlink &&
1484                         !internal_cfg->in_memory) {
1485                 RTE_LOG(ERR, EAL, "Option --"OPT_SINGLE_FILE_SEGMENTS" is "
1486                         "not compatible with --"OPT_HUGE_UNLINK"\n");
1487                 return -1;
1488         }
1489         if (internal_cfg->legacy_mem &&
1490                         internal_cfg->in_memory) {
1491                 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
1492                                 "with --"OPT_IN_MEMORY"\n");
1493                 return -1;
1494         }
1495         if (internal_cfg->legacy_mem && internal_cfg->match_allocations) {
1496                 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
1497                                 "with --"OPT_MATCH_ALLOCATIONS"\n");
1498                 return -1;
1499         }
1500         if (internal_cfg->no_hugetlbfs && internal_cfg->match_allocations) {
1501                 RTE_LOG(ERR, EAL, "Option --"OPT_NO_HUGE" is not compatible "
1502                                 "with --"OPT_MATCH_ALLOCATIONS"\n");
1503                 return -1;
1504         }
1505
1506         return 0;
1507 }
1508
1509 void
1510 eal_common_usage(void)
1511 {
1512         printf("[options]\n\n"
1513                "EAL common options:\n"
1514                "  -c COREMASK         Hexadecimal bitmask of cores to run on\n"
1515                "  -l CORELIST         List of cores to run on\n"
1516                "                      The argument format is <c1>[-c2][,c3[-c4],...]\n"
1517                "                      where c1, c2, etc are core indexes between 0 and %d\n"
1518                "  --"OPT_LCORES" COREMAP    Map lcore set to physical cpu set\n"
1519                "                      The argument format is\n"
1520                "                            '<lcores[@cpus]>[<,lcores[@cpus]>...]'\n"
1521                "                      lcores and cpus list are grouped by '(' and ')'\n"
1522                "                      Within the group, '-' is used for range separator,\n"
1523                "                      ',' is used for single number separator.\n"
1524                "                      '( )' can be omitted for single element group,\n"
1525                "                      '@' can be omitted if cpus and lcores have the same value\n"
1526                "  -s SERVICE COREMASK Hexadecimal bitmask of cores to be used as service cores\n"
1527                "  --"OPT_MASTER_LCORE" ID   Core ID that is used as master\n"
1528                "  --"OPT_MBUF_POOL_OPS_NAME" Pool ops name for mbuf to use\n"
1529                "  -n CHANNELS         Number of memory channels\n"
1530                "  -m MB               Memory to allocate (see also --"OPT_SOCKET_MEM")\n"
1531                "  -r RANKS            Force number of memory ranks (don't detect)\n"
1532                "  -b, --"OPT_PCI_BLACKLIST" Add a PCI device in black list.\n"
1533                "                      Prevent EAL from using this PCI device. The argument\n"
1534                "                      format is <domain:bus:devid.func>.\n"
1535                "  -w, --"OPT_PCI_WHITELIST" Add a PCI device in white list.\n"
1536                "                      Only use the specified PCI devices. The argument format\n"
1537                "                      is <[domain:]bus:devid.func>. This option can be present\n"
1538                "                      several times (once per device).\n"
1539                "                      [NOTE: PCI whitelist cannot be used with -b option]\n"
1540                "  --"OPT_VDEV"              Add a virtual device.\n"
1541                "                      The argument format is <driver><id>[,key=val,...]\n"
1542                "                      (ex: --vdev=net_pcap0,iface=eth2).\n"
1543                "  --"OPT_IOVA_MODE"   Set IOVA mode. 'pa' for IOVA_PA\n"
1544                "                      'va' for IOVA_VA\n"
1545                "  -d LIB.so|DIR       Add a driver or driver directory\n"
1546                "                      (can be used multiple times)\n"
1547                "  --"OPT_VMWARE_TSC_MAP"    Use VMware TSC map instead of native RDTSC\n"
1548                "  --"OPT_PROC_TYPE"         Type of this process (primary|secondary|auto)\n"
1549                "  --"OPT_SYSLOG"            Set syslog facility\n"
1550                "  --"OPT_LOG_LEVEL"=<int>   Set global log level\n"
1551                "  --"OPT_LOG_LEVEL"=<type-match>:<int>\n"
1552                "                      Set specific log level\n"
1553                "  -v                  Display version information on startup\n"
1554                "  -h, --help          This help\n"
1555                "  --"OPT_IN_MEMORY"   Operate entirely in memory. This will\n"
1556                "                      disable secondary process support\n"
1557                "\nEAL options for DEBUG use only:\n"
1558                "  --"OPT_HUGE_UNLINK"       Unlink hugepage files after init\n"
1559                "  --"OPT_NO_HUGE"           Use malloc instead of hugetlbfs\n"
1560                "  --"OPT_NO_PCI"            Disable PCI\n"
1561                "  --"OPT_NO_HPET"           Disable HPET\n"
1562                "  --"OPT_NO_SHCONF"         No shared config (mmap'd files)\n"
1563                "\n", RTE_MAX_LCORE);
1564         rte_option_usage();
1565 }