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 #ifndef RTE_EXEC_ENV_WINDOWS
  10 #include <syslog.h>
  11 #endif
  12 #include <ctype.h>
  13 #include <limits.h>
  14 #include <errno.h>
  15 #include <getopt.h>
  16 #ifndef RTE_EXEC_ENV_WINDOWS
  17 #include <dlfcn.h>
  18 #endif
  19 #include <sys/types.h>
  20 #include <sys/stat.h>
  21 #include <dirent.h>
  22
  23 #include <rte_string_fns.h>
  24 #include <rte_eal.h>
  25 #include <rte_log.h>
  26 #include <rte_lcore.h>
  27 #include <rte_memory.h>
  28 #include <rte_tailq.h>
  29 #include <rte_version.h>
  30 #include <rte_devargs.h>
  31 #include <rte_memcpy.h>
  32
  33 #include "eal_internal_cfg.h"
  34 #include "eal_options.h"
  35 #include "eal_filesystem.h"
  36 #include "eal_private.h"
  37 #ifndef RTE_EXEC_ENV_WINDOWS
  38 #include "eal_trace.h"
  39 #endif
  40
  41 #define BITS_PER_HEX 4
  42 #define LCORE_OPT_LST 1
  43 #define LCORE_OPT_MSK 2
  44 #define LCORE_OPT_MAP 3
  45
  46 const char
  47 eal_short_options[] =
  48         "b:" /* pci-blacklist */
  49         "c:" /* coremask */
  50         "s:" /* service coremask */
  51         "d:" /* driver */
  52         "h"  /* help */
  53         "l:" /* corelist */
  54         "S:" /* service corelist */
  55         "m:" /* memory size */
  56         "n:" /* memory channels */
  57         "r:" /* memory ranks */
  58         "v"  /* version */
  59         "w:" /* pci-whitelist */
  60         ;
  61
  62 const struct option
  63 eal_long_options[] = {
  64         {OPT_BASE_VIRTADDR,     1, NULL, OPT_BASE_VIRTADDR_NUM    },
  65         {OPT_CREATE_UIO_DEV,    0, NULL, OPT_CREATE_UIO_DEV_NUM   },
  66         {OPT_FILE_PREFIX,       1, NULL, OPT_FILE_PREFIX_NUM      },
  67         {OPT_HELP,              0, NULL, OPT_HELP_NUM             },
  68         {OPT_HUGE_DIR,          1, NULL, OPT_HUGE_DIR_NUM         },
  69         {OPT_HUGE_UNLINK,       0, NULL, OPT_HUGE_UNLINK_NUM      },
  70         {OPT_IOVA_MODE,         1, NULL, OPT_IOVA_MODE_NUM        },
  71         {OPT_LCORES,            1, NULL, OPT_LCORES_NUM           },
  72         {OPT_LOG_LEVEL,         1, NULL, OPT_LOG_LEVEL_NUM        },
  73         {OPT_TRACE,             1, NULL, OPT_TRACE_NUM            },
  74         {OPT_TRACE_DIR,         1, NULL, OPT_TRACE_DIR_NUM        },
  75         {OPT_TRACE_BUF_SIZE,    1, NULL, OPT_TRACE_BUF_SIZE_NUM   },
  76         {OPT_TRACE_MODE,        1, NULL, OPT_TRACE_MODE_NUM       },
  77         {OPT_MASTER_LCORE,      1, NULL, OPT_MASTER_LCORE_NUM     },
  78         {OPT_MBUF_POOL_OPS_NAME, 1, NULL, OPT_MBUF_POOL_OPS_NAME_NUM},
  79         {OPT_NO_HPET,           0, NULL, OPT_NO_HPET_NUM          },
  80         {OPT_NO_HUGE,           0, NULL, OPT_NO_HUGE_NUM          },
  81         {OPT_NO_PCI,            0, NULL, OPT_NO_PCI_NUM           },
  82         {OPT_NO_SHCONF,         0, NULL, OPT_NO_SHCONF_NUM        },
  83         {OPT_IN_MEMORY,         0, NULL, OPT_IN_MEMORY_NUM        },
  84         {OPT_PCI_BLACKLIST,     1, NULL, OPT_PCI_BLACKLIST_NUM    },
  85         {OPT_PCI_WHITELIST,     1, NULL, OPT_PCI_WHITELIST_NUM    },
  86         {OPT_PROC_TYPE,         1, NULL, OPT_PROC_TYPE_NUM        },
  87         {OPT_SOCKET_MEM,        1, NULL, OPT_SOCKET_MEM_NUM       },
  88         {OPT_SOCKET_LIMIT,      1, NULL, OPT_SOCKET_LIMIT_NUM     },
  89         {OPT_SYSLOG,            1, NULL, OPT_SYSLOG_NUM           },
  90         {OPT_VDEV,              1, NULL, OPT_VDEV_NUM             },
  91         {OPT_VFIO_INTR,         1, NULL, OPT_VFIO_INTR_NUM        },
  92         {OPT_VMWARE_TSC_MAP,    0, NULL, OPT_VMWARE_TSC_MAP_NUM   },
  93         {OPT_LEGACY_MEM,        0, NULL, OPT_LEGACY_MEM_NUM       },
  94         {OPT_SINGLE_FILE_SEGMENTS, 0, NULL, OPT_SINGLE_FILE_SEGMENTS_NUM},
  95         {OPT_MATCH_ALLOCATIONS, 0, NULL, OPT_MATCH_ALLOCATIONS_NUM},
  96         {0,                     0, NULL, 0                        }
  97 };
  98
  99 TAILQ_HEAD(shared_driver_list, shared_driver);
 100
 101 /* Definition for shared object drivers. */
 102 struct shared_driver {
 103         TAILQ_ENTRY(shared_driver) next;
 104
 105         char    name[PATH_MAX];
 106         void*   lib_handle;
 107 };
 108
 109 /* List of external loadable drivers */
 110 static struct shared_driver_list solib_list =
 111 TAILQ_HEAD_INITIALIZER(solib_list);
 112
 113 /* Default path of external loadable drivers */
 114 static const char *default_solib_dir = RTE_EAL_PMD_PATH;
 115
 116 /*
 117  * Stringified version of solib path used by dpdk-pmdinfo.py
 118  * Note: PLEASE DO NOT ALTER THIS without making a corresponding
 119  * change to usertools/dpdk-pmdinfo.py
 120  */
 121 static const char dpdk_solib_path[] __rte_used =
 122 "DPDK_PLUGIN_PATH=" RTE_EAL_PMD_PATH;
 123
 124 TAILQ_HEAD(device_option_list, device_option);
 125
 126 struct device_option {
 127         TAILQ_ENTRY(device_option) next;
 128
 129         enum rte_devtype type;
 130         char arg[];
 131 };
 132
 133 static struct device_option_list devopt_list =
 134 TAILQ_HEAD_INITIALIZER(devopt_list);
 135
 136 static int master_lcore_parsed;
 137 static int mem_parsed;
 138 static int core_parsed;
 139
 140 static int
 141 eal_option_device_add(enum rte_devtype type, const char *optarg)
 142 {
 143         struct device_option *devopt;
 144         size_t optlen;
 145         int ret;
 146
 147         optlen = strlen(optarg) + 1;
 148         devopt = calloc(1, sizeof(*devopt) + optlen);
 149         if (devopt == NULL) {
 150                 RTE_LOG(ERR, EAL, "Unable to allocate device option\n");
 151                 return -ENOMEM;
 152         }
 153
 154         devopt->type = type;
 155         ret = strlcpy(devopt->arg, optarg, optlen);
 156         if (ret < 0) {
 157                 RTE_LOG(ERR, EAL, "Unable to copy device option\n");
 158                 free(devopt);
 159                 return -EINVAL;
 160         }
 161         TAILQ_INSERT_TAIL(&devopt_list, devopt, next);
 162         return 0;
 163 }
 164
 165 int
 166 eal_option_device_parse(void)
 167 {
 168         struct device_option *devopt;
 169         void *tmp;
 170         int ret = 0;
 171
 172         TAILQ_FOREACH_SAFE(devopt, &devopt_list, next, tmp) {
 173                 if (ret == 0) {
 174                         ret = rte_devargs_add(devopt->type, devopt->arg);
 175                         if (ret)
 176                                 RTE_LOG(ERR, EAL, "Unable to parse device '%s'\n",
 177                                         devopt->arg);
 178                 }
 179                 TAILQ_REMOVE(&devopt_list, devopt, next);
 180                 free(devopt);
 181         }
 182         return ret;
 183 }
 184
 185 const char *
 186 eal_get_hugefile_prefix(void)
 187 {
 188         if (internal_config.hugefile_prefix != NULL)
 189                 return internal_config.hugefile_prefix;
 190         return HUGEFILE_PREFIX_DEFAULT;
 191 }
 192
 193 void
 194 eal_reset_internal_config(struct internal_config *internal_cfg)
 195 {
 196         int i;
 197
 198         internal_cfg->memory = 0;
 199         internal_cfg->force_nrank = 0;
 200         internal_cfg->force_nchannel = 0;
 201         internal_cfg->hugefile_prefix = NULL;
 202         internal_cfg->hugepage_dir = NULL;
 203         internal_cfg->force_sockets = 0;
 204         /* zero out the NUMA config */
 205         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 206                 internal_cfg->socket_mem[i] = 0;
 207         internal_cfg->force_socket_limits = 0;
 208         /* zero out the NUMA limits config */
 209         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 210                 internal_cfg->socket_limit[i] = 0;
 211         /* zero out hugedir descriptors */
 212         for (i = 0; i < MAX_HUGEPAGE_SIZES; i++) {
 213                 memset(&internal_cfg->hugepage_info[i], 0,
 214                                 sizeof(internal_cfg->hugepage_info[0]));
 215                 internal_cfg->hugepage_info[i].lock_descriptor = -1;
 216         }
 217         internal_cfg->base_virtaddr = 0;
 218
 219 #ifdef LOG_DAEMON
 220         internal_cfg->syslog_facility = LOG_DAEMON;
 221 #endif
 222
 223         /* if set to NONE, interrupt mode is determined automatically */
 224         internal_cfg->vfio_intr_mode = RTE_INTR_MODE_NONE;
 225
 226 #ifdef RTE_LIBEAL_USE_HPET
 227         internal_cfg->no_hpet = 0;
 228 #else
 229         internal_cfg->no_hpet = 1;
 230 #endif
 231         internal_cfg->vmware_tsc_map = 0;
 232         internal_cfg->create_uio_dev = 0;
 233         internal_cfg->iova_mode = RTE_IOVA_DC;
 234         internal_cfg->user_mbuf_pool_ops_name = NULL;
 235         CPU_ZERO(&internal_cfg->ctrl_cpuset);
 236         internal_cfg->init_complete = 0;
 237 }
 238
 239 static int
 240 eal_plugin_add(const char *path)
 241 {
 242         struct shared_driver *solib;
 243
 244         solib = malloc(sizeof(*solib));
 245         if (solib == NULL) {
 246                 RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
 247                 return -1;
 248         }
 249         memset(solib, 0, sizeof(*solib));
 250         strlcpy(solib->name, path, PATH_MAX-1);
 251         solib->name[PATH_MAX-1] = 0;
 252         TAILQ_INSERT_TAIL(&solib_list, solib, next);
 253
 254         return 0;
 255 }
 256
 257 static int
 258 eal_plugindir_init(const char *path)
 259 {
 260         DIR *d = NULL;
 261         struct dirent *dent = NULL;
 262         char sopath[PATH_MAX];
 263
 264         if (path == NULL || *path == '\0')
 265                 return 0;
 266
 267         d = opendir(path);
 268         if (d == NULL) {
 269                 RTE_LOG(ERR, EAL, "failed to open directory %s: %s\n",
 270                         path, strerror(errno));
 271                 return -1;
 272         }
 273
 274         while ((dent = readdir(d)) != NULL) {
 275                 struct stat sb;
 276
 277                 snprintf(sopath, sizeof(sopath), "%s/%s", path, dent->d_name);
 278
 279                 if (!(stat(sopath, &sb) == 0 && S_ISREG(sb.st_mode)))
 280                         continue;
 281
 282                 if (eal_plugin_add(sopath) == -1)
 283                         break;
 284         }
 285
 286         closedir(d);
 287         /* XXX this ignores failures from readdir() itself */
 288         return (dent == NULL) ? 0 : -1;
 289 }
 290
 291 int
 292 eal_plugins_init(void)
 293 {
 294 #ifndef RTE_EXEC_ENV_WINDOWS
 295         struct shared_driver *solib = NULL;
 296         struct stat sb;
 297
 298         if (*default_solib_dir != '\0' && stat(default_solib_dir, &sb) == 0 &&
 299                                 S_ISDIR(sb.st_mode))
 300                 eal_plugin_add(default_solib_dir);
 301
 302         TAILQ_FOREACH(solib, &solib_list, next) {
 303
 304                 if (stat(solib->name, &sb) == 0 && S_ISDIR(sb.st_mode)) {
 305                         if (eal_plugindir_init(solib->name) == -1) {
 306                                 RTE_LOG(ERR, EAL,
 307                                         "Cannot init plugin directory %s\n",
 308                                         solib->name);
 309                                 return -1;
 310                         }
 311                 } else {
 312                         RTE_LOG(DEBUG, EAL, "open shared lib %s\n",
 313                                 solib->name);
 314                         solib->lib_handle = dlopen(solib->name, RTLD_NOW);
 315                         if (solib->lib_handle == NULL) {
 316                                 RTE_LOG(ERR, EAL, "%s\n", dlerror());
 317                                 return -1;
 318                         }
 319                 }
 320
 321         }
 322         return 0;
 323 #endif
 324 }
 325
 326 /*
 327  * Parse the coremask given as argument (hexadecimal string) and fill
 328  * the global configuration (core role and core count) with the parsed
 329  * value.
 330  */
 331 static int xdigit2val(unsigned char c)
 332 {
 333         int val;
 334
 335         if (isdigit(c))
 336                 val = c - '0';
 337         else if (isupper(c))
 338                 val = c - 'A' + 10;
 339         else
 340                 val = c - 'a' + 10;
 341         return val;
 342 }
 343
 344 static int
 345 eal_parse_service_coremask(const char *coremask)
 346 {
 347         struct rte_config *cfg = rte_eal_get_configuration();
 348         int i, j, idx = 0;
 349         unsigned int count = 0;
 350         char c;
 351         int val;
 352         uint32_t taken_lcore_count = 0;
 353
 354         if (coremask == NULL)
 355                 return -1;
 356         /* Remove all blank characters ahead and after .
 357          * Remove 0x/0X if exists.
 358          */
 359         while (isblank(*coremask))
 360                 coremask++;
 361         if (coremask[0] == '0' && ((coremask[1] == 'x')
 362                 || (coremask[1] == 'X')))
 363                 coremask += 2;
 364         i = strlen(coremask);
 365         while ((i > 0) && isblank(coremask[i - 1]))
 366                 i--;
 367
 368         if (i == 0)
 369                 return -1;
 370
 371         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 372                 c = coremask[i];
 373                 if (isxdigit(c) == 0) {
 374                         /* invalid characters */
 375                         return -1;
 376                 }
 377                 val = xdigit2val(c);
 378                 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE;
 379                                 j++, idx++) {
 380                         if ((1 << j) & val) {
 381                                 /* handle master lcore already parsed */
 382                                 uint32_t lcore = idx;
 383                                 if (master_lcore_parsed &&
 384                                                 cfg->master_lcore == lcore) {
 385                                         RTE_LOG(ERR, EAL,
 386                                                 "lcore %u is master lcore, cannot use as service core\n",
 387                                                 idx);
 388                                         return -1;
 389                                 }
 390
 391                                 if (eal_cpu_detected(idx) == 0) {
 392                                         RTE_LOG(ERR, EAL,
 393                                                 "lcore %u unavailable\n", idx);
 394                                         return -1;
 395                                 }
 396
 397                                 if (cfg->lcore_role[idx] == ROLE_RTE)
 398                                         taken_lcore_count++;
 399
 400                                 lcore_config[idx].core_role = ROLE_SERVICE;
 401                                 count++;
 402                         }
 403                 }
 404         }
 405
 406         for (; i >= 0; i--)
 407                 if (coremask[i] != '0')
 408                         return -1;
 409
 410         for (; idx < RTE_MAX_LCORE; idx++)
 411                 lcore_config[idx].core_index = -1;
 412
 413         if (count == 0)
 414                 return -1;
 415
 416         if (core_parsed && taken_lcore_count != count) {
 417                 RTE_LOG(WARNING, EAL,
 418                         "Not all service cores are in the coremask. "
 419                         "Please ensure -c or -l includes service cores\n");
 420         }
 421
 422         cfg->service_lcore_count = count;
 423         return 0;
 424 }
 425
 426 static int
 427 eal_service_cores_parsed(void)
 428 {
 429         int idx;
 430         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 431                 if (lcore_config[idx].core_role == ROLE_SERVICE)
 432                         return 1;
 433         }
 434         return 0;
 435 }
 436
 437 static int
 438 update_lcore_config(int *cores)
 439 {
 440         struct rte_config *cfg = rte_eal_get_configuration();
 441         unsigned int count = 0;
 442         unsigned int i;
 443         int ret = 0;
 444
 445         for (i = 0; i < RTE_MAX_LCORE; i++) {
 446                 if (cores[i] != -1) {
 447                         if (eal_cpu_detected(i) == 0) {
 448                                 RTE_LOG(ERR, EAL, "lcore %u unavailable\n", i);
 449                                 ret = -1;
 450                                 continue;
 451                         }
 452                         cfg->lcore_role[i] = ROLE_RTE;
 453                         count++;
 454                 } else {
 455                         cfg->lcore_role[i] = ROLE_OFF;
 456                 }
 457                 lcore_config[i].core_index = cores[i];
 458         }
 459         if (!ret)
 460                 cfg->lcore_count = count;
 461         return ret;
 462 }
 463
 464 static int
 465 eal_parse_coremask(const char *coremask, int *cores)
 466 {
 467         unsigned count = 0;
 468         int i, j, idx;
 469         int val;
 470         char c;
 471
 472         for (idx = 0; idx < RTE_MAX_LCORE; idx++)
 473                 cores[idx] = -1;
 474         idx = 0;
 475
 476         /* Remove all blank characters ahead and after .
 477          * Remove 0x/0X if exists.
 478          */
 479         while (isblank(*coremask))
 480                 coremask++;
 481         if (coremask[0] == '0' && ((coremask[1] == 'x')
 482                 || (coremask[1] == 'X')))
 483                 coremask += 2;
 484         i = strlen(coremask);
 485         while ((i > 0) && isblank(coremask[i - 1]))
 486                 i--;
 487         if (i == 0)
 488                 return -1;
 489
 490         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 491                 c = coremask[i];
 492                 if (isxdigit(c) == 0) {
 493                         /* invalid characters */
 494                         return -1;
 495                 }
 496                 val = xdigit2val(c);
 497                 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++)
 498                 {
 499                         if ((1 << j) & val) {
 500                                 cores[idx] = count;
 501                                 count++;
 502                         }
 503                 }
 504         }
 505         for (; i >= 0; i--)
 506                 if (coremask[i] != '0')
 507                         return -1;
 508         if (count == 0)
 509                 return -1;
 510         return 0;
 511 }
 512
 513 static int
 514 eal_parse_service_corelist(const char *corelist)
 515 {
 516         struct rte_config *cfg = rte_eal_get_configuration();
 517         int i, idx = 0;
 518         unsigned count = 0;
 519         char *end = NULL;
 520         int min, max;
 521         uint32_t taken_lcore_count = 0;
 522
 523         if (corelist == NULL)
 524                 return -1;
 525
 526         /* Remove all blank characters ahead and after */
 527         while (isblank(*corelist))
 528                 corelist++;
 529         i = strlen(corelist);
 530         while ((i > 0) && isblank(corelist[i - 1]))
 531                 i--;
 532
 533         /* Get list of cores */
 534         min = RTE_MAX_LCORE;
 535         do {
 536                 while (isblank(*corelist))
 537                         corelist++;
 538                 if (*corelist == '\0')
 539                         return -1;
 540                 errno = 0;
 541                 idx = strtoul(corelist, &end, 10);
 542                 if (errno || end == NULL)
 543                         return -1;
 544                 while (isblank(*end))
 545                         end++;
 546                 if (*end == '-') {
 547                         min = idx;
 548                 } else if ((*end == ',') || (*end == '\0')) {
 549                         max = idx;
 550                         if (min == RTE_MAX_LCORE)
 551                                 min = idx;
 552                         for (idx = min; idx <= max; idx++) {
 553                                 if (cfg->lcore_role[idx] != ROLE_SERVICE) {
 554                                         /* handle master lcore already parsed */
 555                                         uint32_t lcore = idx;
 556                                         if (cfg->master_lcore == lcore &&
 557                                                         master_lcore_parsed) {
 558                                                 RTE_LOG(ERR, EAL,
 559                                                         "Error: lcore %u is master lcore, cannot use as service core\n",
 560                                                         idx);
 561                                                 return -1;
 562                                         }
 563                                         if (cfg->lcore_role[idx] == ROLE_RTE)
 564                                                 taken_lcore_count++;
 565
 566                                         lcore_config[idx].core_role =
 567                                                         ROLE_SERVICE;
 568                                         count++;
 569                                 }
 570                         }
 571                         min = RTE_MAX_LCORE;
 572                 } else
 573                         return -1;
 574                 corelist = end + 1;
 575         } while (*end != '\0');
 576
 577         if (count == 0)
 578                 return -1;
 579
 580         if (core_parsed && taken_lcore_count != count) {
 581                 RTE_LOG(WARNING, EAL,
 582                         "Not all service cores were in the coremask. "
 583                         "Please ensure -c or -l includes service cores\n");
 584         }
 585
 586         return 0;
 587 }
 588
 589 static int
 590 eal_parse_corelist(const char *corelist, int *cores)
 591 {
 592         unsigned count = 0;
 593         char *end = NULL;
 594         int min, max;
 595         int idx;
 596
 597         for (idx = 0; idx < RTE_MAX_LCORE; idx++)
 598                 cores[idx] = -1;
 599
 600         /* Remove all blank characters ahead */
 601         while (isblank(*corelist))
 602                 corelist++;
 603
 604         /* Get list of cores */
 605         min = RTE_MAX_LCORE;
 606         do {
 607                 while (isblank(*corelist))
 608                         corelist++;
 609                 if (*corelist == '\0')
 610                         return -1;
 611                 errno = 0;
 612                 idx = strtol(corelist, &end, 10);
 613                 if (errno || end == NULL)
 614                         return -1;
 615                 if (idx < 0 || idx >= RTE_MAX_LCORE)
 616                         return -1;
 617                 while (isblank(*end))
 618                         end++;
 619                 if (*end == '-') {
 620                         min = idx;
 621                 } else if ((*end == ',') || (*end == '\0')) {
 622                         max = idx;
 623                         if (min == RTE_MAX_LCORE)
 624                                 min = idx;
 625                         for (idx = min; idx <= max; idx++) {
 626                                 if (cores[idx] == -1) {
 627                                         cores[idx] = count;
 628                                         count++;
 629                                 }
 630                         }
 631                         min = RTE_MAX_LCORE;
 632                 } else
 633                         return -1;
 634                 corelist = end + 1;
 635         } while (*end != '\0');
 636
 637         if (count == 0)
 638                 return -1;
 639         return 0;
 640 }
 641
 642 /* Changes the lcore id of the master thread */
 643 static int
 644 eal_parse_master_lcore(const char *arg)
 645 {
 646         char *parsing_end;
 647         struct rte_config *cfg = rte_eal_get_configuration();
 648
 649         errno = 0;
 650         cfg->master_lcore = (uint32_t) strtol(arg, &parsing_end, 0);
 651         if (errno || parsing_end[0] != 0)
 652                 return -1;
 653         if (cfg->master_lcore >= RTE_MAX_LCORE)
 654                 return -1;
 655         master_lcore_parsed = 1;
 656
 657         /* ensure master core is not used as service core */
 658         if (lcore_config[cfg->master_lcore].core_role == ROLE_SERVICE) {
 659                 RTE_LOG(ERR, EAL,
 660                         "Error: Master lcore is used as a service core\n");
 661                 return -1;
 662         }
 663
 664         return 0;
 665 }
 666
 667 /*
 668  * Parse elem, the elem could be single number/range or '(' ')' group
 669  * 1) A single number elem, it's just a simple digit. e.g. 9
 670  * 2) A single range elem, two digits with a '-' between. e.g. 2-6
 671  * 3) A group elem, combines multiple 1) or 2) with '( )'. e.g (0,2-4,6)
 672  *    Within group elem, '-' used for a range separator;
 673  *                       ',' used for a single number.
 674  */
 675 static int
 676 eal_parse_set(const char *input, rte_cpuset_t *set)
 677 {
 678         unsigned idx;
 679         const char *str = input;
 680         char *end = NULL;
 681         unsigned min, max;
 682
 683         CPU_ZERO(set);
 684
 685         while (isblank(*str))
 686                 str++;
 687
 688         /* only digit or left bracket is qualify for start point */
 689         if ((!isdigit(*str) && *str != '(') || *str == '\0')
 690                 return -1;
 691
 692         /* process single number or single range of number */
 693         if (*str != '(') {
 694                 errno = 0;
 695                 idx = strtoul(str, &end, 10);
 696                 if (errno || end == NULL || idx >= CPU_SETSIZE)
 697                         return -1;
 698                 else {
 699                         while (isblank(*end))
 700                                 end++;
 701
 702                         min = idx;
 703                         max = idx;
 704                         if (*end == '-') {
 705                                 /* process single <number>-<number> */
 706                                 end++;
 707                                 while (isblank(*end))
 708                                         end++;
 709                                 if (!isdigit(*end))
 710                                         return -1;
 711
 712                                 errno = 0;
 713                                 idx = strtoul(end, &end, 10);
 714                                 if (errno || end == NULL || idx >= CPU_SETSIZE)
 715                                         return -1;
 716                                 max = idx;
 717                                 while (isblank(*end))
 718                                         end++;
 719                                 if (*end != ',' && *end != '\0')
 720                                         return -1;
 721                         }
 722
 723                         if (*end != ',' && *end != '\0' &&
 724                             *end != '@')
 725                                 return -1;
 726
 727                         for (idx = RTE_MIN(min, max);
 728                              idx <= RTE_MAX(min, max); idx++)
 729                                 CPU_SET(idx, set);
 730
 731                         return end - input;
 732                 }
 733         }
 734
 735         /* process set within bracket */
 736         str++;
 737         while (isblank(*str))
 738                 str++;
 739         if (*str == '\0')
 740                 return -1;
 741
 742         min = RTE_MAX_LCORE;
 743         do {
 744
 745                 /* go ahead to the first digit */
 746                 while (isblank(*str))
 747                         str++;
 748                 if (!isdigit(*str))
 749                         return -1;
 750
 751                 /* get the digit value */
 752                 errno = 0;
 753                 idx = strtoul(str, &end, 10);
 754                 if (errno || end == NULL || idx >= CPU_SETSIZE)
 755                         return -1;
 756
 757                 /* go ahead to separator '-',',' and ')' */
 758                 while (isblank(*end))
 759                         end++;
 760                 if (*end == '-') {
 761                         if (min == RTE_MAX_LCORE)
 762                                 min = idx;
 763                         else /* avoid continuous '-' */
 764                                 return -1;
 765                 } else if ((*end == ',') || (*end == ')')) {
 766                         max = idx;
 767                         if (min == RTE_MAX_LCORE)
 768                                 min = idx;
 769                         for (idx = RTE_MIN(min, max);
 770                              idx <= RTE_MAX(min, max); idx++)
 771                                 CPU_SET(idx, set);
 772
 773                         min = RTE_MAX_LCORE;
 774                 } else
 775                         return -1;
 776
 777                 str = end + 1;
 778         } while (*end != '\0' && *end != ')');
 779
 780         /*
 781          * to avoid failure that tail blank makes end character check fail
 782          * in eal_parse_lcores( )
 783          */
 784         while (isblank(*str))
 785                 str++;
 786
 787         return str - input;
 788 }
 789
 790 static int
 791 check_cpuset(rte_cpuset_t *set)
 792 {
 793         unsigned int idx;
 794
 795         for (idx = 0; idx < CPU_SETSIZE; idx++) {
 796                 if (!CPU_ISSET(idx, set))
 797                         continue;
 798
 799                 if (eal_cpu_detected(idx) == 0) {
 800                         RTE_LOG(ERR, EAL, "core %u "
 801                                 "unavailable\n", idx);
 802                         return -1;
 803                 }
 804         }
 805         return 0;
 806 }
 807
 808 /*
 809  * The format pattern: --lcores='<lcores[@cpus]>[<,lcores[@cpus]>...]'
 810  * lcores, cpus could be a single digit/range or a group.
 811  * '(' and ')' are necessary if it's a group.
 812  * If not supply '@cpus', the value of cpus uses the same as lcores.
 813  * e.g. '1,2@(5-7),(3-5)@(0,2),(0,6),7-8' means start 9 EAL thread as below
 814  *   lcore 0 runs on cpuset 0x41 (cpu 0,6)
 815  *   lcore 1 runs on cpuset 0x2 (cpu 1)
 816  *   lcore 2 runs on cpuset 0xe0 (cpu 5,6,7)
 817  *   lcore 3,4,5 runs on cpuset 0x5 (cpu 0,2)
 818  *   lcore 6 runs on cpuset 0x41 (cpu 0,6)
 819  *   lcore 7 runs on cpuset 0x80 (cpu 7)
 820  *   lcore 8 runs on cpuset 0x100 (cpu 8)
 821  */
 822 static int
 823 eal_parse_lcores(const char *lcores)
 824 {
 825         struct rte_config *cfg = rte_eal_get_configuration();
 826         rte_cpuset_t lcore_set;
 827         unsigned int set_count;
 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 cpuset and update the end cursor */
 877                         offset = eal_parse_set(lcores + 1, &cpuset);
 878                         if (offset < 0)
 879                                 goto err;
 880                         end = lcores + 1 + offset;
 881                 } else { /* ',' or '\0' */
 882                         /* haven't given cpuset, current loop done */
 883                         end = lcores;
 884
 885                         /* go back to check <number>-<number> */
 886                         offset = strcspn(lcore_start, "(-");
 887                         if (offset < (end - lcore_start) &&
 888                             *(lcore_start + offset) != '(')
 889                                 lflags = 1;
 890                 }
 891
 892                 if (*end != ',' && *end != '\0')
 893                         goto err;
 894
 895                 /* parse lcore_set from start point */
 896                 if (eal_parse_set(lcore_start, &lcore_set) < 0)
 897                         goto err;
 898
 899                 /* without '@', by default using lcore_set as cpuset */
 900                 if (*lcores != '@')
 901                         rte_memcpy(&cpuset, &lcore_set, sizeof(cpuset));
 902
 903                 set_count = CPU_COUNT(&lcore_set);
 904                 /* start to update lcore_set */
 905                 for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 906                         if (!CPU_ISSET(idx, &lcore_set))
 907                                 continue;
 908                         set_count--;
 909
 910                         if (cfg->lcore_role[idx] != ROLE_RTE) {
 911                                 lcore_config[idx].core_index = count;
 912                                 cfg->lcore_role[idx] = ROLE_RTE;
 913                                 count++;
 914                         }
 915
 916                         if (lflags) {
 917                                 CPU_ZERO(&cpuset);
 918                                 CPU_SET(idx, &cpuset);
 919                         }
 920
 921                         if (check_cpuset(&cpuset) < 0)
 922                                 goto err;
 923                         rte_memcpy(&lcore_config[idx].cpuset, &cpuset,
 924                                    sizeof(rte_cpuset_t));
 925                 }
 926
 927                 /* some cores from the lcore_set can't be handled by EAL */
 928                 if (set_count != 0)
 929                         goto err;
 930
 931                 lcores = end + 1;
 932         } while (*end != '\0');
 933
 934         if (count == 0)
 935                 goto err;
 936
 937         cfg->lcore_count = count;
 938         ret = 0;
 939
 940 err:
 941
 942         return ret;
 943 }
 944
 945 #ifndef RTE_EXEC_ENV_WINDOWS
 946 static int
 947 eal_parse_syslog(const char *facility, struct internal_config *conf)
 948 {
 949         int i;
 950         static const struct {
 951                 const char *name;
 952                 int value;
 953         } map[] = {
 954                 { "auth", LOG_AUTH },
 955                 { "cron", LOG_CRON },
 956                 { "daemon", LOG_DAEMON },
 957                 { "ftp", LOG_FTP },
 958                 { "kern", LOG_KERN },
 959                 { "lpr", LOG_LPR },
 960                 { "mail", LOG_MAIL },
 961                 { "news", LOG_NEWS },
 962                 { "syslog", LOG_SYSLOG },
 963                 { "user", LOG_USER },
 964                 { "uucp", LOG_UUCP },
 965                 { "local0", LOG_LOCAL0 },
 966                 { "local1", LOG_LOCAL1 },
 967                 { "local2", LOG_LOCAL2 },
 968                 { "local3", LOG_LOCAL3 },
 969                 { "local4", LOG_LOCAL4 },
 970                 { "local5", LOG_LOCAL5 },
 971                 { "local6", LOG_LOCAL6 },
 972                 { "local7", LOG_LOCAL7 },
 973                 { NULL, 0 }
 974         };
 975
 976         for (i = 0; map[i].name; i++) {
 977                 if (!strcmp(facility, map[i].name)) {
 978                         conf->syslog_facility = map[i].value;
 979                         return 0;
 980                 }
 981         }
 982         return -1;
 983 }
 984 #endif
 985
 986 static int
 987 eal_parse_log_priority(const char *level)
 988 {
 989         static const char * const levels[] = {
 990                 [RTE_LOG_EMERG]   = "emergency",
 991                 [RTE_LOG_ALERT]   = "alert",
 992                 [RTE_LOG_CRIT]    = "critical",
 993                 [RTE_LOG_ERR]     = "error",
 994                 [RTE_LOG_WARNING] = "warning",
 995                 [RTE_LOG_NOTICE]  = "notice",
 996                 [RTE_LOG_INFO]    = "info",
 997                 [RTE_LOG_DEBUG]   = "debug",
 998         };
 999         size_t len = strlen(level);
1000         unsigned long tmp;
1001         char *end;
1002         unsigned int i;
1003
1004         if (len == 0)
1005                 return -1;
1006
1007         /* look for named values, skip 0 which is not a valid level */
1008         for (i = 1; i < RTE_DIM(levels); i++) {
1009                 if (strncmp(levels[i], level, len) == 0)
1010                         return i;
1011         }
1012
1013         /* not a string, maybe it is numeric */
1014         errno = 0;
1015         tmp = strtoul(level, &end, 0);
1016
1017         /* check for errors */
1018         if (errno != 0 || end == NULL || *end != '\0' ||
1019             tmp >= UINT32_MAX)
1020                 return -1;
1021
1022         return tmp;
1023 }
1024
1025 static int
1026 eal_parse_log_level(const char *arg)
1027 {
1028         const char *pattern = NULL;
1029         const char *regex = NULL;
1030         char *str, *level;
1031         int priority;
1032
1033         str = strdup(arg);
1034         if (str == NULL)
1035                 return -1;
1036
1037         if ((level = strchr(str, ','))) {
1038                 regex = str;
1039                 *level++ = '\0';
1040         } else if ((level = strchr(str, ':'))) {
1041                 pattern = str;
1042                 *level++ = '\0';
1043         } else {
1044                 level = str;
1045         }
1046
1047         priority = eal_parse_log_priority(level);
1048         if (priority < 0) {
1049                 fprintf(stderr, "invalid log priority: %s\n", level);
1050                 goto fail;
1051         }
1052
1053         if (regex) {
1054                 if (rte_log_set_level_regexp(regex, priority) < 0) {
1055                         fprintf(stderr, "cannot set log level %s,%d\n",
1056                                 regex, priority);
1057                         goto fail;
1058                 }
1059                 if (rte_log_save_regexp(regex, priority) < 0)
1060                         goto fail;
1061         } else if (pattern) {
1062                 if (rte_log_set_level_pattern(pattern, priority) < 0) {
1063                         fprintf(stderr, "cannot set log level %s:%d\n",
1064                                 pattern, priority);
1065                         goto fail;
1066                 }
1067                 if (rte_log_save_pattern(pattern, priority) < 0)
1068                         goto fail;
1069         } else {
1070                 rte_log_set_global_level(priority);
1071         }
1072
1073         free(str);
1074         return 0;
1075
1076 fail:
1077         free(str);
1078         return -1;
1079 }
1080
1081 static enum rte_proc_type_t
1082 eal_parse_proc_type(const char *arg)
1083 {
1084         if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
1085                 return RTE_PROC_PRIMARY;
1086         if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
1087                 return RTE_PROC_SECONDARY;
1088         if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
1089                 return RTE_PROC_AUTO;
1090
1091         return RTE_PROC_INVALID;
1092 }
1093
1094 static int
1095 eal_parse_iova_mode(const char *name)
1096 {
1097         int mode;
1098
1099         if (name == NULL)
1100                 return -1;
1101
1102         if (!strcmp("pa", name))
1103                 mode = RTE_IOVA_PA;
1104         else if (!strcmp("va", name))
1105                 mode = RTE_IOVA_VA;
1106         else
1107                 return -1;
1108
1109         internal_config.iova_mode = mode;
1110         return 0;
1111 }
1112
1113 static int
1114 eal_parse_base_virtaddr(const char *arg)
1115 {
1116         char *end;
1117         uint64_t addr;
1118
1119         errno = 0;
1120         addr = strtoull(arg, &end, 16);
1121
1122         /* check for errors */
1123         if ((errno != 0) || (arg[0] == '\0') || end == NULL || (*end != '\0'))
1124                 return -1;
1125
1126         /* make sure we don't exceed 32-bit boundary on 32-bit target */
1127 #ifndef RTE_ARCH_64
1128         if (addr >= UINTPTR_MAX)
1129                 return -1;
1130 #endif
1131
1132         /* align the addr on 16M boundary, 16MB is the minimum huge page
1133          * size on IBM Power architecture. If the addr is aligned to 16MB,
1134          * it can align to 2MB for x86. So this alignment can also be used
1135          * on x86 and other architectures.
1136          */
1137         internal_config.base_virtaddr =
1138                 RTE_PTR_ALIGN_CEIL((uintptr_t)addr, (size_t)RTE_PGSIZE_16M);
1139
1140         return 0;
1141 }
1142
1143 /* caller is responsible for freeing the returned string */
1144 static char *
1145 available_cores(void)
1146 {
1147         char *str = NULL;
1148         int previous;
1149         int sequence;
1150         char *tmp;
1151         int idx;
1152
1153         /* find the first available cpu */
1154         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
1155                 if (eal_cpu_detected(idx) == 0)
1156                         continue;
1157                 break;
1158         }
1159         if (idx >= RTE_MAX_LCORE)
1160                 return NULL;
1161
1162         /* first sequence */
1163         if (asprintf(&str, "%d", idx) < 0)
1164                 return NULL;
1165         previous = idx;
1166         sequence = 0;
1167
1168         for (idx++ ; idx < RTE_MAX_LCORE; idx++) {
1169                 if (eal_cpu_detected(idx) == 0)
1170                         continue;
1171
1172                 if (idx == previous + 1) {
1173                         previous = idx;
1174                         sequence = 1;
1175                         continue;
1176                 }
1177
1178                 /* finish current sequence */
1179                 if (sequence) {
1180                         if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
1181                                 free(str);
1182                                 return NULL;
1183                         }
1184                         free(str);
1185                         str = tmp;
1186                 }
1187
1188                 /* new sequence */
1189                 if (asprintf(&tmp, "%s,%d", str, idx) < 0) {
1190                         free(str);
1191                         return NULL;
1192                 }
1193                 free(str);
1194                 str = tmp;
1195                 previous = idx;
1196                 sequence = 0;
1197         }
1198
1199         /* finish last sequence */
1200         if (sequence) {
1201                 if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
1202                         free(str);
1203                         return NULL;
1204                 }
1205                 free(str);
1206                 str = tmp;
1207         }
1208
1209         return str;
1210 }
1211
1212 int
1213 eal_parse_common_option(int opt, const char *optarg,
1214                         struct internal_config *conf)
1215 {
1216         static int b_used;
1217         static int w_used;
1218
1219         switch (opt) {
1220         /* blacklist */
1221         case 'b':
1222                 if (w_used)
1223                         goto bw_used;
1224                 if (eal_option_device_add(RTE_DEVTYPE_BLACKLISTED_PCI,
1225                                 optarg) < 0) {
1226                         return -1;
1227                 }
1228                 b_used = 1;
1229                 break;
1230         /* whitelist */
1231         case 'w':
1232                 if (b_used)
1233                         goto bw_used;
1234                 if (eal_option_device_add(RTE_DEVTYPE_WHITELISTED_PCI,
1235                                 optarg) < 0) {
1236                         return -1;
1237                 }
1238                 w_used = 1;
1239                 break;
1240         /* coremask */
1241         case 'c': {
1242                 int lcore_indexes[RTE_MAX_LCORE];
1243
1244                 if (eal_service_cores_parsed())
1245                         RTE_LOG(WARNING, EAL,
1246                                 "Service cores parsed before dataplane cores. Please ensure -c is before -s or -S\n");
1247                 if (eal_parse_coremask(optarg, lcore_indexes) < 0) {
1248                         RTE_LOG(ERR, EAL, "invalid coremask syntax\n");
1249                         return -1;
1250                 }
1251                 if (update_lcore_config(lcore_indexes) < 0) {
1252                         char *available = available_cores();
1253
1254                         RTE_LOG(ERR, EAL,
1255                                 "invalid coremask, please check specified cores are part of %s\n",
1256                                 available);
1257                         free(available);
1258                         return -1;
1259                 }
1260
1261                 if (core_parsed) {
1262                         RTE_LOG(ERR, EAL, "Option -c is ignored, because (%s) is set!\n",
1263                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1264                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1265                                 "-c");
1266                         return -1;
1267                 }
1268
1269                 core_parsed = LCORE_OPT_MSK;
1270                 break;
1271         }
1272         /* corelist */
1273         case 'l': {
1274                 int lcore_indexes[RTE_MAX_LCORE];
1275
1276                 if (eal_service_cores_parsed())
1277                         RTE_LOG(WARNING, EAL,
1278                                 "Service cores parsed before dataplane cores. Please ensure -l is before -s or -S\n");
1279
1280                 if (eal_parse_corelist(optarg, lcore_indexes) < 0) {
1281                         RTE_LOG(ERR, EAL, "invalid core list syntax\n");
1282                         return -1;
1283                 }
1284                 if (update_lcore_config(lcore_indexes) < 0) {
1285                         char *available = available_cores();
1286
1287                         RTE_LOG(ERR, EAL,
1288                                 "invalid core list, please check specified cores are part of %s\n",
1289                                 available);
1290                         free(available);
1291                         return -1;
1292                 }
1293
1294                 if (core_parsed) {
1295                         RTE_LOG(ERR, EAL, "Option -l is ignored, because (%s) is set!\n",
1296                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1297                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1298                                 "-l");
1299                         return -1;
1300                 }
1301
1302                 core_parsed = LCORE_OPT_LST;
1303                 break;
1304         }
1305         /* service coremask */
1306         case 's':
1307                 if (eal_parse_service_coremask(optarg) < 0) {
1308                         RTE_LOG(ERR, EAL, "invalid service coremask\n");
1309                         return -1;
1310                 }
1311                 break;
1312         /* service corelist */
1313         case 'S':
1314                 if (eal_parse_service_corelist(optarg) < 0) {
1315                         RTE_LOG(ERR, EAL, "invalid service core list\n");
1316                         return -1;
1317                 }
1318                 break;
1319         /* size of memory */
1320         case 'm':
1321                 conf->memory = atoi(optarg);
1322                 conf->memory *= 1024ULL;
1323                 conf->memory *= 1024ULL;
1324                 mem_parsed = 1;
1325                 break;
1326         /* force number of channels */
1327         case 'n':
1328                 conf->force_nchannel = atoi(optarg);
1329                 if (conf->force_nchannel == 0) {
1330                         RTE_LOG(ERR, EAL, "invalid channel number\n");
1331                         return -1;
1332                 }
1333                 break;
1334         /* force number of ranks */
1335         case 'r':
1336                 conf->force_nrank = atoi(optarg);
1337                 if (conf->force_nrank == 0 ||
1338                     conf->force_nrank > 16) {
1339                         RTE_LOG(ERR, EAL, "invalid rank number\n");
1340                         return -1;
1341                 }
1342                 break;
1343         /* force loading of external driver */
1344         case 'd':
1345                 if (eal_plugin_add(optarg) == -1)
1346                         return -1;
1347                 break;
1348         case 'v':
1349                 /* since message is explicitly requested by user, we
1350                  * write message at highest log level so it can always
1351                  * be seen
1352                  * even if info or warning messages are disabled */
1353                 RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
1354                 break;
1355
1356         /* long options */
1357         case OPT_HUGE_UNLINK_NUM:
1358                 conf->hugepage_unlink = 1;
1359                 break;
1360
1361         case OPT_NO_HUGE_NUM:
1362                 conf->no_hugetlbfs = 1;
1363                 /* no-huge is legacy mem */
1364                 conf->legacy_mem = 1;
1365                 break;
1366
1367         case OPT_NO_PCI_NUM:
1368                 conf->no_pci = 1;
1369                 break;
1370
1371         case OPT_NO_HPET_NUM:
1372                 conf->no_hpet = 1;
1373                 break;
1374
1375         case OPT_VMWARE_TSC_MAP_NUM:
1376                 conf->vmware_tsc_map = 1;
1377                 break;
1378
1379         case OPT_NO_SHCONF_NUM:
1380                 conf->no_shconf = 1;
1381                 break;
1382
1383         case OPT_IN_MEMORY_NUM:
1384                 conf->in_memory = 1;
1385                 /* in-memory is a superset of noshconf and huge-unlink */
1386                 conf->no_shconf = 1;
1387                 conf->hugepage_unlink = 1;
1388                 break;
1389
1390         case OPT_PROC_TYPE_NUM:
1391                 conf->process_type = eal_parse_proc_type(optarg);
1392                 break;
1393
1394         case OPT_MASTER_LCORE_NUM:
1395                 if (eal_parse_master_lcore(optarg) < 0) {
1396                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1397                                         OPT_MASTER_LCORE "\n");
1398                         return -1;
1399                 }
1400                 break;
1401
1402         case OPT_VDEV_NUM:
1403                 if (eal_option_device_add(RTE_DEVTYPE_VIRTUAL,
1404                                 optarg) < 0) {
1405                         return -1;
1406                 }
1407                 break;
1408
1409 #ifndef RTE_EXEC_ENV_WINDOWS
1410         case OPT_SYSLOG_NUM:
1411                 if (eal_parse_syslog(optarg, conf) < 0) {
1412                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1413                                         OPT_SYSLOG "\n");
1414                         return -1;
1415                 }
1416                 break;
1417 #endif
1418
1419         case OPT_LOG_LEVEL_NUM: {
1420                 if (eal_parse_log_level(optarg) < 0) {
1421                         RTE_LOG(ERR, EAL,
1422                                 "invalid parameters for --"
1423                                 OPT_LOG_LEVEL "\n");
1424                         return -1;
1425                 }
1426                 break;
1427         }
1428
1429 #ifndef RTE_EXEC_ENV_WINDOWS
1430         case OPT_TRACE_NUM: {
1431                 if (eal_trace_args_save(optarg) < 0) {
1432                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1433                                 OPT_TRACE "\n");
1434                         return -1;
1435                 }
1436                 break;
1437         }
1438
1439         case OPT_TRACE_DIR_NUM: {
1440                 if (eal_trace_dir_args_save(optarg) < 0) {
1441                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1442                                 OPT_TRACE_DIR "\n");
1443                         return -1;
1444                 }
1445                 break;
1446         }
1447
1448         case OPT_TRACE_BUF_SIZE_NUM: {
1449                 if (eal_trace_bufsz_args_save(optarg) < 0) {
1450                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1451                                 OPT_TRACE_BUF_SIZE "\n");
1452                         return -1;
1453                 }
1454                 break;
1455         }
1456
1457         case OPT_TRACE_MODE_NUM: {
1458                 if (eal_trace_mode_args_save(optarg) < 0) {
1459                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1460                                 OPT_TRACE_MODE "\n");
1461                         return -1;
1462                 }
1463                 break;
1464         }
1465 #endif /* !RTE_EXEC_ENV_WINDOWS */
1466
1467         case OPT_LCORES_NUM:
1468                 if (eal_parse_lcores(optarg) < 0) {
1469                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1470                                 OPT_LCORES "\n");
1471                         return -1;
1472                 }
1473
1474                 if (core_parsed) {
1475                         RTE_LOG(ERR, EAL, "Option --lcore is ignored, because (%s) is set!\n",
1476                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1477                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1478                                 "--lcore");
1479                         return -1;
1480                 }
1481
1482                 core_parsed = LCORE_OPT_MAP;
1483                 break;
1484         case OPT_LEGACY_MEM_NUM:
1485                 conf->legacy_mem = 1;
1486                 break;
1487         case OPT_SINGLE_FILE_SEGMENTS_NUM:
1488                 conf->single_file_segments = 1;
1489                 break;
1490         case OPT_IOVA_MODE_NUM:
1491                 if (eal_parse_iova_mode(optarg) < 0) {
1492                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1493                                 OPT_IOVA_MODE "\n");
1494                         return -1;
1495                 }
1496                 break;
1497         case OPT_BASE_VIRTADDR_NUM:
1498                 if (eal_parse_base_virtaddr(optarg) < 0) {
1499                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1500                                         OPT_BASE_VIRTADDR "\n");
1501                         return -1;
1502                 }
1503                 break;
1504
1505         /* don't know what to do, leave this to caller */
1506         default:
1507                 return 1;
1508
1509         }
1510
1511         return 0;
1512 bw_used:
1513         RTE_LOG(ERR, EAL, "Options blacklist (-b) and whitelist (-w) "
1514                 "cannot be used at the same time\n");
1515         return -1;
1516 }
1517
1518 static void
1519 eal_auto_detect_cores(struct rte_config *cfg)
1520 {
1521         unsigned int lcore_id;
1522         unsigned int removed = 0;
1523         rte_cpuset_t affinity_set;
1524
1525         if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1526                                 &affinity_set))
1527                 CPU_ZERO(&affinity_set);
1528
1529         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1530                 if (cfg->lcore_role[lcore_id] == ROLE_RTE &&
1531                     !CPU_ISSET(lcore_id, &affinity_set)) {
1532                         cfg->lcore_role[lcore_id] = ROLE_OFF;
1533                         removed++;
1534                 }
1535         }
1536
1537         cfg->lcore_count -= removed;
1538 }
1539
1540 static void
1541 compute_ctrl_threads_cpuset(struct internal_config *internal_cfg)
1542 {
1543         rte_cpuset_t *cpuset = &internal_cfg->ctrl_cpuset;
1544         rte_cpuset_t default_set;
1545         unsigned int lcore_id;
1546
1547         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1548                 if (rte_lcore_has_role(lcore_id, ROLE_OFF))
1549                         continue;
1550                 RTE_CPU_OR(cpuset, cpuset, &lcore_config[lcore_id].cpuset);
1551         }
1552         RTE_CPU_NOT(cpuset, cpuset);
1553
1554         if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1555                                 &default_set))
1556                 CPU_ZERO(&default_set);
1557
1558         RTE_CPU_AND(cpuset, cpuset, &default_set);
1559
1560         /* if no remaining cpu, use master lcore cpu affinity */
1561         if (!CPU_COUNT(cpuset)) {
1562                 memcpy(cpuset, &lcore_config[rte_get_master_lcore()].cpuset,
1563                         sizeof(*cpuset));
1564         }
1565 }
1566
1567 int
1568 eal_cleanup_config(struct internal_config *internal_cfg)
1569 {
1570         if (internal_cfg->hugefile_prefix != NULL)
1571                 free(internal_cfg->hugefile_prefix);
1572         if (internal_cfg->hugepage_dir != NULL)
1573                 free(internal_cfg->hugepage_dir);
1574         if (internal_cfg->user_mbuf_pool_ops_name != NULL)
1575                 free(internal_cfg->user_mbuf_pool_ops_name);
1576
1577         return 0;
1578 }
1579
1580 int
1581 eal_adjust_config(struct internal_config *internal_cfg)
1582 {
1583         int i;
1584         struct rte_config *cfg = rte_eal_get_configuration();
1585
1586         if (!core_parsed)
1587                 eal_auto_detect_cores(cfg);
1588
1589         if (internal_config.process_type == RTE_PROC_AUTO)
1590                 internal_config.process_type = eal_proc_type_detect();
1591
1592         /* default master lcore is the first one */
1593         if (!master_lcore_parsed) {
1594                 cfg->master_lcore = rte_get_next_lcore(-1, 0, 0);
1595                 if (cfg->master_lcore >= RTE_MAX_LCORE)
1596                         return -1;
1597                 lcore_config[cfg->master_lcore].core_role = ROLE_RTE;
1598         }
1599
1600         compute_ctrl_threads_cpuset(internal_cfg);
1601
1602         /* if no memory amounts were requested, this will result in 0 and
1603          * will be overridden later, right after eal_hugepage_info_init() */
1604         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
1605                 internal_cfg->memory += internal_cfg->socket_mem[i];
1606
1607         return 0;
1608 }
1609
1610 int
1611 eal_check_common_options(struct internal_config *internal_cfg)
1612 {
1613         struct rte_config *cfg = rte_eal_get_configuration();
1614
1615         if (cfg->lcore_role[cfg->master_lcore] != ROLE_RTE) {
1616                 RTE_LOG(ERR, EAL, "Master lcore is not enabled for DPDK\n");
1617                 return -1;
1618         }
1619
1620         if (internal_cfg->process_type == RTE_PROC_INVALID) {
1621                 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
1622                 return -1;
1623         }
1624         if (internal_cfg->hugefile_prefix != NULL &&
1625                         strlen(internal_cfg->hugefile_prefix) < 1) {
1626                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_FILE_PREFIX " option\n");
1627                 return -1;
1628         }
1629         if (internal_cfg->hugepage_dir != NULL &&
1630                         strlen(internal_cfg->hugepage_dir) < 1) {
1631                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_HUGE_DIR" option\n");
1632                 return -1;
1633         }
1634         if (internal_cfg->user_mbuf_pool_ops_name != NULL &&
1635                         strlen(internal_cfg->user_mbuf_pool_ops_name) < 1) {
1636                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_MBUF_POOL_OPS_NAME" option\n");
1637                 return -1;
1638         }
1639         if (index(eal_get_hugefile_prefix(), '%') != NULL) {
1640                 RTE_LOG(ERR, EAL, "Invalid char, '%%', in --"OPT_FILE_PREFIX" "
1641                         "option\n");
1642                 return -1;
1643         }
1644         if (mem_parsed && internal_cfg->force_sockets == 1) {
1645                 RTE_LOG(ERR, EAL, "Options -m and --"OPT_SOCKET_MEM" cannot "
1646                         "be specified at the same time\n");
1647                 return -1;
1648         }
1649         if (internal_cfg->no_hugetlbfs && internal_cfg->force_sockets == 1) {
1650                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_MEM" cannot "
1651                         "be specified together with --"OPT_NO_HUGE"\n");
1652                 return -1;
1653         }
1654         if (internal_cfg->no_hugetlbfs && internal_cfg->hugepage_unlink &&
1655                         !internal_cfg->in_memory) {
1656                 RTE_LOG(ERR, EAL, "Option --"OPT_HUGE_UNLINK" cannot "
1657                         "be specified together with --"OPT_NO_HUGE"\n");
1658                 return -1;
1659         }
1660         if (internal_config.force_socket_limits && internal_config.legacy_mem) {
1661                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_LIMIT
1662                         " is only supported in non-legacy memory mode\n");
1663         }
1664         if (internal_cfg->single_file_segments &&
1665                         internal_cfg->hugepage_unlink &&
1666                         !internal_cfg->in_memory) {
1667                 RTE_LOG(ERR, EAL, "Option --"OPT_SINGLE_FILE_SEGMENTS" is "
1668                         "not compatible with --"OPT_HUGE_UNLINK"\n");
1669                 return -1;
1670         }
1671         if (internal_cfg->legacy_mem &&
1672                         internal_cfg->in_memory) {
1673                 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
1674                                 "with --"OPT_IN_MEMORY"\n");
1675                 return -1;
1676         }
1677         if (internal_cfg->legacy_mem && internal_cfg->match_allocations) {
1678                 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
1679                                 "with --"OPT_MATCH_ALLOCATIONS"\n");
1680                 return -1;
1681         }
1682         if (internal_cfg->no_hugetlbfs && internal_cfg->match_allocations) {
1683                 RTE_LOG(ERR, EAL, "Option --"OPT_NO_HUGE" is not compatible "
1684                                 "with --"OPT_MATCH_ALLOCATIONS"\n");
1685                 return -1;
1686         }
1687         if (internal_cfg->legacy_mem && internal_cfg->memory == 0) {
1688                 RTE_LOG(NOTICE, EAL, "Static memory layout is selected, "
1689                         "amount of reserved memory can be adjusted with "
1690                         "-m or --"OPT_SOCKET_MEM"\n");
1691         }
1692
1693         return 0;
1694 }
1695
1696 void
1697 eal_common_usage(void)
1698 {
1699         printf("[options]\n\n"
1700                "EAL common options:\n"
1701                "  -c COREMASK         Hexadecimal bitmask of cores to run on\n"
1702                "  -l CORELIST         List of cores to run on\n"
1703                "                      The argument format is <c1>[-c2][,c3[-c4],...]\n"
1704                "                      where c1, c2, etc are core indexes between 0 and %d\n"
1705                "  --"OPT_LCORES" COREMAP    Map lcore set to physical cpu set\n"
1706                "                      The argument format is\n"
1707                "                            '<lcores[@cpus]>[<,lcores[@cpus]>...]'\n"
1708                "                      lcores and cpus list are grouped by '(' and ')'\n"
1709                "                      Within the group, '-' is used for range separator,\n"
1710                "                      ',' is used for single number separator.\n"
1711                "                      '( )' can be omitted for single element group,\n"
1712                "                      '@' can be omitted if cpus and lcores have the same value\n"
1713                "  -s SERVICE COREMASK Hexadecimal bitmask of cores to be used as service cores\n"
1714                "  --"OPT_MASTER_LCORE" ID   Core ID that is used as master\n"
1715                "  --"OPT_MBUF_POOL_OPS_NAME" Pool ops name for mbuf to use\n"
1716                "  -n CHANNELS         Number of memory channels\n"
1717                "  -m MB               Memory to allocate (see also --"OPT_SOCKET_MEM")\n"
1718                "  -r RANKS            Force number of memory ranks (don't detect)\n"
1719                "  -b, --"OPT_PCI_BLACKLIST" Add a PCI device in black list.\n"
1720                "                      Prevent EAL from using this PCI device. The argument\n"
1721                "                      format is <domain:bus:devid.func>.\n"
1722                "  -w, --"OPT_PCI_WHITELIST" Add a PCI device in white list.\n"
1723                "                      Only use the specified PCI devices. The argument format\n"
1724                "                      is <[domain:]bus:devid.func>. This option can be present\n"
1725                "                      several times (once per device).\n"
1726                "                      [NOTE: PCI whitelist cannot be used with -b option]\n"
1727                "  --"OPT_VDEV"              Add a virtual device.\n"
1728                "                      The argument format is <driver><id>[,key=val,...]\n"
1729                "                      (ex: --vdev=net_pcap0,iface=eth2).\n"
1730                "  --"OPT_IOVA_MODE"   Set IOVA mode. 'pa' for IOVA_PA\n"
1731                "                      'va' for IOVA_VA\n"
1732                "  -d LIB.so|DIR       Add a driver or driver directory\n"
1733                "                      (can be used multiple times)\n"
1734                "  --"OPT_VMWARE_TSC_MAP"    Use VMware TSC map instead of native RDTSC\n"
1735                "  --"OPT_PROC_TYPE"         Type of this process (primary|secondary|auto)\n"
1736 #ifndef RTE_EXEC_ENV_WINDOWS
1737                "  --"OPT_SYSLOG"            Set syslog facility\n"
1738 #endif
1739                "  --"OPT_LOG_LEVEL"=<int>   Set global log level\n"
1740                "  --"OPT_LOG_LEVEL"=<type-match>:<int>\n"
1741                "                      Set specific log level\n"
1742 #ifndef RTE_EXEC_ENV_WINDOWS
1743                "  --"OPT_TRACE"=<regex-match>\n"
1744                "                      Enable trace based on regular expression trace name.\n"
1745                "                      By default, the trace is disabled.\n"
1746                "                      User must specify this option to enable trace.\n"
1747                "  --"OPT_TRACE_DIR"=<directory path>\n"
1748                "                      Specify trace directory for trace output.\n"
1749                "                      By default, trace output will created at\n"
1750                "                      $HOME directory and parameter must be\n"
1751                "                      specified once only.\n"
1752                "  --"OPT_TRACE_BUF_SIZE"=<int>\n"
1753                "                      Specify maximum size of allocated memory\n"
1754                "                      for trace output for each thread. Valid\n"
1755                "                      unit can be either 'B|K|M' for 'Bytes',\n"
1756                "                      'KBytes' and 'MBytes' respectively.\n"
1757                "                      Default is 1MB and parameter must be\n"
1758                "                      specified once only.\n"
1759                "  --"OPT_TRACE_MODE"=<o[verwrite] | d[iscard]>\n"
1760                "                      Specify the mode of update of trace\n"
1761                "                      output file. Either update on a file can\n"
1762                "                      be wrapped or discarded when file size\n"
1763                "                      reaches its maximum limit.\n"
1764                "                      Default mode is 'overwrite' and parameter\n"
1765                "                      must be specified once only.\n"
1766 #endif /* !RTE_EXEC_ENV_WINDOWS */
1767                "  -v                  Display version information on startup\n"
1768                "  -h, --help          This help\n"
1769                "  --"OPT_IN_MEMORY"   Operate entirely in memory. This will\n"
1770                "                      disable secondary process support\n"
1771                "  --"OPT_BASE_VIRTADDR"     Base virtual address\n"
1772                "\nEAL options for DEBUG use only:\n"
1773                "  --"OPT_HUGE_UNLINK"       Unlink hugepage files after init\n"
1774                "  --"OPT_NO_HUGE"           Use malloc instead of hugetlbfs\n"
1775                "  --"OPT_NO_PCI"            Disable PCI\n"
1776                "  --"OPT_NO_HPET"           Disable HPET\n"
1777                "  --"OPT_NO_SHCONF"         No shared config (mmap'd files)\n"
1778                "\n", RTE_MAX_LCORE);
1779         rte_option_usage();
1780 }