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         {OPT_TELEMETRY,         0, NULL, OPT_TELEMETRY_NUM        },
  97         {OPT_NO_TELEMETRY,      0, NULL, OPT_NO_TELEMETRY_NUM     },
  98         {0,                     0, NULL, 0                        }
  99 };
 100
 101 TAILQ_HEAD(shared_driver_list, shared_driver);
 102
 103 /* Definition for shared object drivers. */
 104 struct shared_driver {
 105         TAILQ_ENTRY(shared_driver) next;
 106
 107         char    name[PATH_MAX];
 108         void*   lib_handle;
 109 };
 110
 111 /* List of external loadable drivers */
 112 static struct shared_driver_list solib_list =
 113 TAILQ_HEAD_INITIALIZER(solib_list);
 114
 115 /* Default path of external loadable drivers */
 116 static const char *default_solib_dir = RTE_EAL_PMD_PATH;
 117
 118 /*
 119  * Stringified version of solib path used by dpdk-pmdinfo.py
 120  * Note: PLEASE DO NOT ALTER THIS without making a corresponding
 121  * change to usertools/dpdk-pmdinfo.py
 122  */
 123 static const char dpdk_solib_path[] __rte_used =
 124 "DPDK_PLUGIN_PATH=" RTE_EAL_PMD_PATH;
 125
 126 TAILQ_HEAD(device_option_list, device_option);
 127
 128 struct device_option {
 129         TAILQ_ENTRY(device_option) next;
 130
 131         enum rte_devtype type;
 132         char arg[];
 133 };
 134
 135 static struct device_option_list devopt_list =
 136 TAILQ_HEAD_INITIALIZER(devopt_list);
 137
 138 static int master_lcore_parsed;
 139 static int mem_parsed;
 140 static int core_parsed;
 141
 142 static int
 143 eal_option_device_add(enum rte_devtype type, const char *optarg)
 144 {
 145         struct device_option *devopt;
 146         size_t optlen;
 147         int ret;
 148
 149         optlen = strlen(optarg) + 1;
 150         devopt = calloc(1, sizeof(*devopt) + optlen);
 151         if (devopt == NULL) {
 152                 RTE_LOG(ERR, EAL, "Unable to allocate device option\n");
 153                 return -ENOMEM;
 154         }
 155
 156         devopt->type = type;
 157         ret = strlcpy(devopt->arg, optarg, optlen);
 158         if (ret < 0) {
 159                 RTE_LOG(ERR, EAL, "Unable to copy device option\n");
 160                 free(devopt);
 161                 return -EINVAL;
 162         }
 163         TAILQ_INSERT_TAIL(&devopt_list, devopt, next);
 164         return 0;
 165 }
 166
 167 int
 168 eal_option_device_parse(void)
 169 {
 170         struct device_option *devopt;
 171         void *tmp;
 172         int ret = 0;
 173
 174         TAILQ_FOREACH_SAFE(devopt, &devopt_list, next, tmp) {
 175                 if (ret == 0) {
 176                         ret = rte_devargs_add(devopt->type, devopt->arg);
 177                         if (ret)
 178                                 RTE_LOG(ERR, EAL, "Unable to parse device '%s'\n",
 179                                         devopt->arg);
 180                 }
 181                 TAILQ_REMOVE(&devopt_list, devopt, next);
 182                 free(devopt);
 183         }
 184         return ret;
 185 }
 186
 187 const char *
 188 eal_get_hugefile_prefix(void)
 189 {
 190         if (internal_config.hugefile_prefix != NULL)
 191                 return internal_config.hugefile_prefix;
 192         return HUGEFILE_PREFIX_DEFAULT;
 193 }
 194
 195 void
 196 eal_reset_internal_config(struct internal_config *internal_cfg)
 197 {
 198         int i;
 199
 200         internal_cfg->memory = 0;
 201         internal_cfg->force_nrank = 0;
 202         internal_cfg->force_nchannel = 0;
 203         internal_cfg->hugefile_prefix = NULL;
 204         internal_cfg->hugepage_dir = NULL;
 205         internal_cfg->force_sockets = 0;
 206         /* zero out the NUMA config */
 207         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 208                 internal_cfg->socket_mem[i] = 0;
 209         internal_cfg->force_socket_limits = 0;
 210         /* zero out the NUMA limits config */
 211         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 212                 internal_cfg->socket_limit[i] = 0;
 213         /* zero out hugedir descriptors */
 214         for (i = 0; i < MAX_HUGEPAGE_SIZES; i++) {
 215                 memset(&internal_cfg->hugepage_info[i], 0,
 216                                 sizeof(internal_cfg->hugepage_info[0]));
 217                 internal_cfg->hugepage_info[i].lock_descriptor = -1;
 218         }
 219         internal_cfg->base_virtaddr = 0;
 220
 221 #ifdef LOG_DAEMON
 222         internal_cfg->syslog_facility = LOG_DAEMON;
 223 #endif
 224
 225         /* if set to NONE, interrupt mode is determined automatically */
 226         internal_cfg->vfio_intr_mode = RTE_INTR_MODE_NONE;
 227
 228 #ifdef RTE_LIBEAL_USE_HPET
 229         internal_cfg->no_hpet = 0;
 230 #else
 231         internal_cfg->no_hpet = 1;
 232 #endif
 233         internal_cfg->vmware_tsc_map = 0;
 234         internal_cfg->create_uio_dev = 0;
 235         internal_cfg->iova_mode = RTE_IOVA_DC;
 236         internal_cfg->user_mbuf_pool_ops_name = NULL;
 237         CPU_ZERO(&internal_cfg->ctrl_cpuset);
 238         internal_cfg->init_complete = 0;
 239 }
 240
 241 static int
 242 eal_plugin_add(const char *path)
 243 {
 244         struct shared_driver *solib;
 245
 246         solib = malloc(sizeof(*solib));
 247         if (solib == NULL) {
 248                 RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
 249                 return -1;
 250         }
 251         memset(solib, 0, sizeof(*solib));
 252         strlcpy(solib->name, path, PATH_MAX-1);
 253         solib->name[PATH_MAX-1] = 0;
 254         TAILQ_INSERT_TAIL(&solib_list, solib, next);
 255
 256         return 0;
 257 }
 258
 259 static int
 260 eal_plugindir_init(const char *path)
 261 {
 262         DIR *d = NULL;
 263         struct dirent *dent = NULL;
 264         char sopath[PATH_MAX];
 265
 266         if (path == NULL || *path == '\0')
 267                 return 0;
 268
 269         d = opendir(path);
 270         if (d == NULL) {
 271                 RTE_LOG(ERR, EAL, "failed to open directory %s: %s\n",
 272                         path, strerror(errno));
 273                 return -1;
 274         }
 275
 276         while ((dent = readdir(d)) != NULL) {
 277                 struct stat sb;
 278
 279                 snprintf(sopath, sizeof(sopath), "%s/%s", path, dent->d_name);
 280
 281                 if (!(stat(sopath, &sb) == 0 && S_ISREG(sb.st_mode)))
 282                         continue;
 283
 284                 if (eal_plugin_add(sopath) == -1)
 285                         break;
 286         }
 287
 288         closedir(d);
 289         /* XXX this ignores failures from readdir() itself */
 290         return (dent == NULL) ? 0 : -1;
 291 }
 292
 293 int
 294 eal_plugins_init(void)
 295 {
 296 #ifndef RTE_EXEC_ENV_WINDOWS
 297         struct shared_driver *solib = NULL;
 298         struct stat sb;
 299
 300         if (*default_solib_dir != '\0' && stat(default_solib_dir, &sb) == 0 &&
 301                                 S_ISDIR(sb.st_mode))
 302                 eal_plugin_add(default_solib_dir);
 303
 304         TAILQ_FOREACH(solib, &solib_list, next) {
 305
 306                 if (stat(solib->name, &sb) == 0 && S_ISDIR(sb.st_mode)) {
 307                         if (eal_plugindir_init(solib->name) == -1) {
 308                                 RTE_LOG(ERR, EAL,
 309                                         "Cannot init plugin directory %s\n",
 310                                         solib->name);
 311                                 return -1;
 312                         }
 313                 } else {
 314                         RTE_LOG(DEBUG, EAL, "open shared lib %s\n",
 315                                 solib->name);
 316                         solib->lib_handle = dlopen(solib->name, RTLD_NOW);
 317                         if (solib->lib_handle == NULL) {
 318                                 RTE_LOG(ERR, EAL, "%s\n", dlerror());
 319                                 return -1;
 320                         }
 321                 }
 322
 323         }
 324         return 0;
 325 #endif
 326 }
 327
 328 /*
 329  * Parse the coremask given as argument (hexadecimal string) and fill
 330  * the global configuration (core role and core count) with the parsed
 331  * value.
 332  */
 333 static int xdigit2val(unsigned char c)
 334 {
 335         int val;
 336
 337         if (isdigit(c))
 338                 val = c - '0';
 339         else if (isupper(c))
 340                 val = c - 'A' + 10;
 341         else
 342                 val = c - 'a' + 10;
 343         return val;
 344 }
 345
 346 static int
 347 eal_parse_service_coremask(const char *coremask)
 348 {
 349         struct rte_config *cfg = rte_eal_get_configuration();
 350         int i, j, idx = 0;
 351         unsigned int count = 0;
 352         char c;
 353         int val;
 354         uint32_t taken_lcore_count = 0;
 355
 356         if (coremask == NULL)
 357                 return -1;
 358         /* Remove all blank characters ahead and after .
 359          * Remove 0x/0X if exists.
 360          */
 361         while (isblank(*coremask))
 362                 coremask++;
 363         if (coremask[0] == '0' && ((coremask[1] == 'x')
 364                 || (coremask[1] == 'X')))
 365                 coremask += 2;
 366         i = strlen(coremask);
 367         while ((i > 0) && isblank(coremask[i - 1]))
 368                 i--;
 369
 370         if (i == 0)
 371                 return -1;
 372
 373         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 374                 c = coremask[i];
 375                 if (isxdigit(c) == 0) {
 376                         /* invalid characters */
 377                         return -1;
 378                 }
 379                 val = xdigit2val(c);
 380                 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE;
 381                                 j++, idx++) {
 382                         if ((1 << j) & val) {
 383                                 /* handle master lcore already parsed */
 384                                 uint32_t lcore = idx;
 385                                 if (master_lcore_parsed &&
 386                                                 cfg->master_lcore == lcore) {
 387                                         RTE_LOG(ERR, EAL,
 388                                                 "lcore %u is master lcore, cannot use as service core\n",
 389                                                 idx);
 390                                         return -1;
 391                                 }
 392
 393                                 if (eal_cpu_detected(idx) == 0) {
 394                                         RTE_LOG(ERR, EAL,
 395                                                 "lcore %u unavailable\n", idx);
 396                                         return -1;
 397                                 }
 398
 399                                 if (cfg->lcore_role[idx] == ROLE_RTE)
 400                                         taken_lcore_count++;
 401
 402                                 lcore_config[idx].core_role = ROLE_SERVICE;
 403                                 count++;
 404                         }
 405                 }
 406         }
 407
 408         for (; i >= 0; i--)
 409                 if (coremask[i] != '0')
 410                         return -1;
 411
 412         for (; idx < RTE_MAX_LCORE; idx++)
 413                 lcore_config[idx].core_index = -1;
 414
 415         if (count == 0)
 416                 return -1;
 417
 418         if (core_parsed && taken_lcore_count != count) {
 419                 RTE_LOG(WARNING, EAL,
 420                         "Not all service cores are in the coremask. "
 421                         "Please ensure -c or -l includes service cores\n");
 422         }
 423
 424         cfg->service_lcore_count = count;
 425         return 0;
 426 }
 427
 428 static int
 429 eal_service_cores_parsed(void)
 430 {
 431         int idx;
 432         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 433                 if (lcore_config[idx].core_role == ROLE_SERVICE)
 434                         return 1;
 435         }
 436         return 0;
 437 }
 438
 439 static int
 440 update_lcore_config(int *cores)
 441 {
 442         struct rte_config *cfg = rte_eal_get_configuration();
 443         unsigned int count = 0;
 444         unsigned int i;
 445         int ret = 0;
 446
 447         for (i = 0; i < RTE_MAX_LCORE; i++) {
 448                 if (cores[i] != -1) {
 449                         if (eal_cpu_detected(i) == 0) {
 450                                 RTE_LOG(ERR, EAL, "lcore %u unavailable\n", i);
 451                                 ret = -1;
 452                                 continue;
 453                         }
 454                         cfg->lcore_role[i] = ROLE_RTE;
 455                         count++;
 456                 } else {
 457                         cfg->lcore_role[i] = ROLE_OFF;
 458                 }
 459                 lcore_config[i].core_index = cores[i];
 460         }
 461         if (!ret)
 462                 cfg->lcore_count = count;
 463         return ret;
 464 }
 465
 466 static int
 467 eal_parse_coremask(const char *coremask, int *cores)
 468 {
 469         unsigned count = 0;
 470         int i, j, idx;
 471         int val;
 472         char c;
 473
 474         for (idx = 0; idx < RTE_MAX_LCORE; idx++)
 475                 cores[idx] = -1;
 476         idx = 0;
 477
 478         /* Remove all blank characters ahead and after .
 479          * Remove 0x/0X if exists.
 480          */
 481         while (isblank(*coremask))
 482                 coremask++;
 483         if (coremask[0] == '0' && ((coremask[1] == 'x')
 484                 || (coremask[1] == 'X')))
 485                 coremask += 2;
 486         i = strlen(coremask);
 487         while ((i > 0) && isblank(coremask[i - 1]))
 488                 i--;
 489         if (i == 0)
 490                 return -1;
 491
 492         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 493                 c = coremask[i];
 494                 if (isxdigit(c) == 0) {
 495                         /* invalid characters */
 496                         return -1;
 497                 }
 498                 val = xdigit2val(c);
 499                 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++)
 500                 {
 501                         if ((1 << j) & val) {
 502                                 cores[idx] = count;
 503                                 count++;
 504                         }
 505                 }
 506         }
 507         for (; i >= 0; i--)
 508                 if (coremask[i] != '0')
 509                         return -1;
 510         if (count == 0)
 511                 return -1;
 512         return 0;
 513 }
 514
 515 static int
 516 eal_parse_service_corelist(const char *corelist)
 517 {
 518         struct rte_config *cfg = rte_eal_get_configuration();
 519         int i, idx = 0;
 520         unsigned count = 0;
 521         char *end = NULL;
 522         int min, max;
 523         uint32_t taken_lcore_count = 0;
 524
 525         if (corelist == NULL)
 526                 return -1;
 527
 528         /* Remove all blank characters ahead and after */
 529         while (isblank(*corelist))
 530                 corelist++;
 531         i = strlen(corelist);
 532         while ((i > 0) && isblank(corelist[i - 1]))
 533                 i--;
 534
 535         /* Get list of cores */
 536         min = RTE_MAX_LCORE;
 537         do {
 538                 while (isblank(*corelist))
 539                         corelist++;
 540                 if (*corelist == '\0')
 541                         return -1;
 542                 errno = 0;
 543                 idx = strtoul(corelist, &end, 10);
 544                 if (errno || end == NULL)
 545                         return -1;
 546                 while (isblank(*end))
 547                         end++;
 548                 if (*end == '-') {
 549                         min = idx;
 550                 } else if ((*end == ',') || (*end == '\0')) {
 551                         max = idx;
 552                         if (min == RTE_MAX_LCORE)
 553                                 min = idx;
 554                         for (idx = min; idx <= max; idx++) {
 555                                 if (cfg->lcore_role[idx] != ROLE_SERVICE) {
 556                                         /* handle master lcore already parsed */
 557                                         uint32_t lcore = idx;
 558                                         if (cfg->master_lcore == lcore &&
 559                                                         master_lcore_parsed) {
 560                                                 RTE_LOG(ERR, EAL,
 561                                                         "Error: lcore %u is master lcore, cannot use as service core\n",
 562                                                         idx);
 563                                                 return -1;
 564                                         }
 565                                         if (cfg->lcore_role[idx] == ROLE_RTE)
 566                                                 taken_lcore_count++;
 567
 568                                         lcore_config[idx].core_role =
 569                                                         ROLE_SERVICE;
 570                                         count++;
 571                                 }
 572                         }
 573                         min = RTE_MAX_LCORE;
 574                 } else
 575                         return -1;
 576                 corelist = end + 1;
 577         } while (*end != '\0');
 578
 579         if (count == 0)
 580                 return -1;
 581
 582         if (core_parsed && taken_lcore_count != count) {
 583                 RTE_LOG(WARNING, EAL,
 584                         "Not all service cores were in the coremask. "
 585                         "Please ensure -c or -l includes service cores\n");
 586         }
 587
 588         return 0;
 589 }
 590
 591 static int
 592 eal_parse_corelist(const char *corelist, int *cores)
 593 {
 594         unsigned count = 0;
 595         char *end = NULL;
 596         int min, max;
 597         int idx;
 598
 599         for (idx = 0; idx < RTE_MAX_LCORE; idx++)
 600                 cores[idx] = -1;
 601
 602         /* Remove all blank characters ahead */
 603         while (isblank(*corelist))
 604                 corelist++;
 605
 606         /* Get list of cores */
 607         min = RTE_MAX_LCORE;
 608         do {
 609                 while (isblank(*corelist))
 610                         corelist++;
 611                 if (*corelist == '\0')
 612                         return -1;
 613                 errno = 0;
 614                 idx = strtol(corelist, &end, 10);
 615                 if (errno || end == NULL)
 616                         return -1;
 617                 if (idx < 0 || idx >= RTE_MAX_LCORE)
 618                         return -1;
 619                 while (isblank(*end))
 620                         end++;
 621                 if (*end == '-') {
 622                         min = idx;
 623                 } else if ((*end == ',') || (*end == '\0')) {
 624                         max = idx;
 625                         if (min == RTE_MAX_LCORE)
 626                                 min = idx;
 627                         for (idx = min; idx <= max; idx++) {
 628                                 if (cores[idx] == -1) {
 629                                         cores[idx] = count;
 630                                         count++;
 631                                 }
 632                         }
 633                         min = RTE_MAX_LCORE;
 634                 } else
 635                         return -1;
 636                 corelist = end + 1;
 637         } while (*end != '\0');
 638
 639         if (count == 0)
 640                 return -1;
 641         return 0;
 642 }
 643
 644 /* Changes the lcore id of the master thread */
 645 static int
 646 eal_parse_master_lcore(const char *arg)
 647 {
 648         char *parsing_end;
 649         struct rte_config *cfg = rte_eal_get_configuration();
 650
 651         errno = 0;
 652         cfg->master_lcore = (uint32_t) strtol(arg, &parsing_end, 0);
 653         if (errno || parsing_end[0] != 0)
 654                 return -1;
 655         if (cfg->master_lcore >= RTE_MAX_LCORE)
 656                 return -1;
 657         master_lcore_parsed = 1;
 658
 659         /* ensure master core is not used as service core */
 660         if (lcore_config[cfg->master_lcore].core_role == ROLE_SERVICE) {
 661                 RTE_LOG(ERR, EAL,
 662                         "Error: Master lcore is used as a service core\n");
 663                 return -1;
 664         }
 665
 666         return 0;
 667 }
 668
 669 /*
 670  * Parse elem, the elem could be single number/range or '(' ')' group
 671  * 1) A single number elem, it's just a simple digit. e.g. 9
 672  * 2) A single range elem, two digits with a '-' between. e.g. 2-6
 673  * 3) A group elem, combines multiple 1) or 2) with '( )'. e.g (0,2-4,6)
 674  *    Within group elem, '-' used for a range separator;
 675  *                       ',' used for a single number.
 676  */
 677 static int
 678 eal_parse_set(const char *input, rte_cpuset_t *set)
 679 {
 680         unsigned idx;
 681         const char *str = input;
 682         char *end = NULL;
 683         unsigned min, max;
 684
 685         CPU_ZERO(set);
 686
 687         while (isblank(*str))
 688                 str++;
 689
 690         /* only digit or left bracket is qualify for start point */
 691         if ((!isdigit(*str) && *str != '(') || *str == '\0')
 692                 return -1;
 693
 694         /* process single number or single range of number */
 695         if (*str != '(') {
 696                 errno = 0;
 697                 idx = strtoul(str, &end, 10);
 698                 if (errno || end == NULL || idx >= CPU_SETSIZE)
 699                         return -1;
 700                 else {
 701                         while (isblank(*end))
 702                                 end++;
 703
 704                         min = idx;
 705                         max = idx;
 706                         if (*end == '-') {
 707                                 /* process single <number>-<number> */
 708                                 end++;
 709                                 while (isblank(*end))
 710                                         end++;
 711                                 if (!isdigit(*end))
 712                                         return -1;
 713
 714                                 errno = 0;
 715                                 idx = strtoul(end, &end, 10);
 716                                 if (errno || end == NULL || idx >= CPU_SETSIZE)
 717                                         return -1;
 718                                 max = idx;
 719                                 while (isblank(*end))
 720                                         end++;
 721                                 if (*end != ',' && *end != '\0')
 722                                         return -1;
 723                         }
 724
 725                         if (*end != ',' && *end != '\0' &&
 726                             *end != '@')
 727                                 return -1;
 728
 729                         for (idx = RTE_MIN(min, max);
 730                              idx <= RTE_MAX(min, max); idx++)
 731                                 CPU_SET(idx, set);
 732
 733                         return end - input;
 734                 }
 735         }
 736
 737         /* process set within bracket */
 738         str++;
 739         while (isblank(*str))
 740                 str++;
 741         if (*str == '\0')
 742                 return -1;
 743
 744         min = RTE_MAX_LCORE;
 745         do {
 746
 747                 /* go ahead to the first digit */
 748                 while (isblank(*str))
 749                         str++;
 750                 if (!isdigit(*str))
 751                         return -1;
 752
 753                 /* get the digit value */
 754                 errno = 0;
 755                 idx = strtoul(str, &end, 10);
 756                 if (errno || end == NULL || idx >= CPU_SETSIZE)
 757                         return -1;
 758
 759                 /* go ahead to separator '-',',' and ')' */
 760                 while (isblank(*end))
 761                         end++;
 762                 if (*end == '-') {
 763                         if (min == RTE_MAX_LCORE)
 764                                 min = idx;
 765                         else /* avoid continuous '-' */
 766                                 return -1;
 767                 } else if ((*end == ',') || (*end == ')')) {
 768                         max = idx;
 769                         if (min == RTE_MAX_LCORE)
 770                                 min = idx;
 771                         for (idx = RTE_MIN(min, max);
 772                              idx <= RTE_MAX(min, max); idx++)
 773                                 CPU_SET(idx, set);
 774
 775                         min = RTE_MAX_LCORE;
 776                 } else
 777                         return -1;
 778
 779                 str = end + 1;
 780         } while (*end != '\0' && *end != ')');
 781
 782         /*
 783          * to avoid failure that tail blank makes end character check fail
 784          * in eal_parse_lcores( )
 785          */
 786         while (isblank(*str))
 787                 str++;
 788
 789         return str - input;
 790 }
 791
 792 static int
 793 check_cpuset(rte_cpuset_t *set)
 794 {
 795         unsigned int idx;
 796
 797         for (idx = 0; idx < CPU_SETSIZE; idx++) {
 798                 if (!CPU_ISSET(idx, set))
 799                         continue;
 800
 801                 if (eal_cpu_detected(idx) == 0) {
 802                         RTE_LOG(ERR, EAL, "core %u "
 803                                 "unavailable\n", idx);
 804                         return -1;
 805                 }
 806         }
 807         return 0;
 808 }
 809
 810 /*
 811  * The format pattern: --lcores='<lcores[@cpus]>[<,lcores[@cpus]>...]'
 812  * lcores, cpus could be a single digit/range or a group.
 813  * '(' and ')' are necessary if it's a group.
 814  * If not supply '@cpus', the value of cpus uses the same as lcores.
 815  * e.g. '1,2@(5-7),(3-5)@(0,2),(0,6),7-8' means start 9 EAL thread as below
 816  *   lcore 0 runs on cpuset 0x41 (cpu 0,6)
 817  *   lcore 1 runs on cpuset 0x2 (cpu 1)
 818  *   lcore 2 runs on cpuset 0xe0 (cpu 5,6,7)
 819  *   lcore 3,4,5 runs on cpuset 0x5 (cpu 0,2)
 820  *   lcore 6 runs on cpuset 0x41 (cpu 0,6)
 821  *   lcore 7 runs on cpuset 0x80 (cpu 7)
 822  *   lcore 8 runs on cpuset 0x100 (cpu 8)
 823  */
 824 static int
 825 eal_parse_lcores(const char *lcores)
 826 {
 827         struct rte_config *cfg = rte_eal_get_configuration();
 828         rte_cpuset_t lcore_set;
 829         unsigned int set_count;
 830         unsigned idx = 0;
 831         unsigned count = 0;
 832         const char *lcore_start = NULL;
 833         const char *end = NULL;
 834         int offset;
 835         rte_cpuset_t cpuset;
 836         int lflags;
 837         int ret = -1;
 838
 839         if (lcores == NULL)
 840                 return -1;
 841
 842         /* Remove all blank characters ahead and after */
 843         while (isblank(*lcores))
 844                 lcores++;
 845
 846         CPU_ZERO(&cpuset);
 847
 848         /* Reset lcore config */
 849         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 850                 cfg->lcore_role[idx] = ROLE_OFF;
 851                 lcore_config[idx].core_index = -1;
 852                 CPU_ZERO(&lcore_config[idx].cpuset);
 853         }
 854
 855         /* Get list of cores */
 856         do {
 857                 while (isblank(*lcores))
 858                         lcores++;
 859                 if (*lcores == '\0')
 860                         goto err;
 861
 862                 lflags = 0;
 863
 864                 /* record lcore_set start point */
 865                 lcore_start = lcores;
 866
 867                 /* go across a complete bracket */
 868                 if (*lcore_start == '(') {
 869                         lcores += strcspn(lcores, ")");
 870                         if (*lcores++ == '\0')
 871                                 goto err;
 872                 }
 873
 874                 /* scan the separator '@', ','(next) or '\0'(finish) */
 875                 lcores += strcspn(lcores, "@,");
 876
 877                 if (*lcores == '@') {
 878                         /* explicit assign cpuset and update the end cursor */
 879                         offset = eal_parse_set(lcores + 1, &cpuset);
 880                         if (offset < 0)
 881                                 goto err;
 882                         end = lcores + 1 + offset;
 883                 } else { /* ',' or '\0' */
 884                         /* haven't given cpuset, current loop done */
 885                         end = lcores;
 886
 887                         /* go back to check <number>-<number> */
 888                         offset = strcspn(lcore_start, "(-");
 889                         if (offset < (end - lcore_start) &&
 890                             *(lcore_start + offset) != '(')
 891                                 lflags = 1;
 892                 }
 893
 894                 if (*end != ',' && *end != '\0')
 895                         goto err;
 896
 897                 /* parse lcore_set from start point */
 898                 if (eal_parse_set(lcore_start, &lcore_set) < 0)
 899                         goto err;
 900
 901                 /* without '@', by default using lcore_set as cpuset */
 902                 if (*lcores != '@')
 903                         rte_memcpy(&cpuset, &lcore_set, sizeof(cpuset));
 904
 905                 set_count = CPU_COUNT(&lcore_set);
 906                 /* start to update lcore_set */
 907                 for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 908                         if (!CPU_ISSET(idx, &lcore_set))
 909                                 continue;
 910                         set_count--;
 911
 912                         if (cfg->lcore_role[idx] != ROLE_RTE) {
 913                                 lcore_config[idx].core_index = count;
 914                                 cfg->lcore_role[idx] = ROLE_RTE;
 915                                 count++;
 916                         }
 917
 918                         if (lflags) {
 919                                 CPU_ZERO(&cpuset);
 920                                 CPU_SET(idx, &cpuset);
 921                         }
 922
 923                         if (check_cpuset(&cpuset) < 0)
 924                                 goto err;
 925                         rte_memcpy(&lcore_config[idx].cpuset, &cpuset,
 926                                    sizeof(rte_cpuset_t));
 927                 }
 928
 929                 /* some cores from the lcore_set can't be handled by EAL */
 930                 if (set_count != 0)
 931                         goto err;
 932
 933                 lcores = end + 1;
 934         } while (*end != '\0');
 935
 936         if (count == 0)
 937                 goto err;
 938
 939         cfg->lcore_count = count;
 940         ret = 0;
 941
 942 err:
 943
 944         return ret;
 945 }
 946
 947 #ifndef RTE_EXEC_ENV_WINDOWS
 948 static int
 949 eal_parse_syslog(const char *facility, struct internal_config *conf)
 950 {
 951         int i;
 952         static const struct {
 953                 const char *name;
 954                 int value;
 955         } map[] = {
 956                 { "auth", LOG_AUTH },
 957                 { "cron", LOG_CRON },
 958                 { "daemon", LOG_DAEMON },
 959                 { "ftp", LOG_FTP },
 960                 { "kern", LOG_KERN },
 961                 { "lpr", LOG_LPR },
 962                 { "mail", LOG_MAIL },
 963                 { "news", LOG_NEWS },
 964                 { "syslog", LOG_SYSLOG },
 965                 { "user", LOG_USER },
 966                 { "uucp", LOG_UUCP },
 967                 { "local0", LOG_LOCAL0 },
 968                 { "local1", LOG_LOCAL1 },
 969                 { "local2", LOG_LOCAL2 },
 970                 { "local3", LOG_LOCAL3 },
 971                 { "local4", LOG_LOCAL4 },
 972                 { "local5", LOG_LOCAL5 },
 973                 { "local6", LOG_LOCAL6 },
 974                 { "local7", LOG_LOCAL7 },
 975                 { NULL, 0 }
 976         };
 977
 978         for (i = 0; map[i].name; i++) {
 979                 if (!strcmp(facility, map[i].name)) {
 980                         conf->syslog_facility = map[i].value;
 981                         return 0;
 982                 }
 983         }
 984         return -1;
 985 }
 986 #endif
 987
 988 static int
 989 eal_parse_log_priority(const char *level)
 990 {
 991         static const char * const levels[] = {
 992                 [RTE_LOG_EMERG]   = "emergency",
 993                 [RTE_LOG_ALERT]   = "alert",
 994                 [RTE_LOG_CRIT]    = "critical",
 995                 [RTE_LOG_ERR]     = "error",
 996                 [RTE_LOG_WARNING] = "warning",
 997                 [RTE_LOG_NOTICE]  = "notice",
 998                 [RTE_LOG_INFO]    = "info",
 999                 [RTE_LOG_DEBUG]   = "debug",
1000         };
1001         size_t len = strlen(level);
1002         unsigned long tmp;
1003         char *end;
1004         unsigned int i;
1005
1006         if (len == 0)
1007                 return -1;
1008
1009         /* look for named values, skip 0 which is not a valid level */
1010         for (i = 1; i < RTE_DIM(levels); i++) {
1011                 if (strncmp(levels[i], level, len) == 0)
1012                         return i;
1013         }
1014
1015         /* not a string, maybe it is numeric */
1016         errno = 0;
1017         tmp = strtoul(level, &end, 0);
1018
1019         /* check for errors */
1020         if (errno != 0 || end == NULL || *end != '\0' ||
1021             tmp >= UINT32_MAX)
1022                 return -1;
1023
1024         return tmp;
1025 }
1026
1027 static int
1028 eal_parse_log_level(const char *arg)
1029 {
1030         const char *pattern = NULL;
1031         const char *regex = NULL;
1032         char *str, *level;
1033         int priority;
1034
1035         str = strdup(arg);
1036         if (str == NULL)
1037                 return -1;
1038
1039         if ((level = strchr(str, ','))) {
1040                 regex = str;
1041                 *level++ = '\0';
1042         } else if ((level = strchr(str, ':'))) {
1043                 pattern = str;
1044                 *level++ = '\0';
1045         } else {
1046                 level = str;
1047         }
1048
1049         priority = eal_parse_log_priority(level);
1050         if (priority < 0) {
1051                 fprintf(stderr, "invalid log priority: %s\n", level);
1052                 goto fail;
1053         }
1054
1055         if (regex) {
1056                 if (rte_log_set_level_regexp(regex, priority) < 0) {
1057                         fprintf(stderr, "cannot set log level %s,%d\n",
1058                                 regex, priority);
1059                         goto fail;
1060                 }
1061                 if (rte_log_save_regexp(regex, priority) < 0)
1062                         goto fail;
1063         } else if (pattern) {
1064                 if (rte_log_set_level_pattern(pattern, priority) < 0) {
1065                         fprintf(stderr, "cannot set log level %s:%d\n",
1066                                 pattern, priority);
1067                         goto fail;
1068                 }
1069                 if (rte_log_save_pattern(pattern, priority) < 0)
1070                         goto fail;
1071         } else {
1072                 rte_log_set_global_level(priority);
1073         }
1074
1075         free(str);
1076         return 0;
1077
1078 fail:
1079         free(str);
1080         return -1;
1081 }
1082
1083 static enum rte_proc_type_t
1084 eal_parse_proc_type(const char *arg)
1085 {
1086         if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
1087                 return RTE_PROC_PRIMARY;
1088         if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
1089                 return RTE_PROC_SECONDARY;
1090         if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
1091                 return RTE_PROC_AUTO;
1092
1093         return RTE_PROC_INVALID;
1094 }
1095
1096 static int
1097 eal_parse_iova_mode(const char *name)
1098 {
1099         int mode;
1100
1101         if (name == NULL)
1102                 return -1;
1103
1104         if (!strcmp("pa", name))
1105                 mode = RTE_IOVA_PA;
1106         else if (!strcmp("va", name))
1107                 mode = RTE_IOVA_VA;
1108         else
1109                 return -1;
1110
1111         internal_config.iova_mode = mode;
1112         return 0;
1113 }
1114
1115 static int
1116 eal_parse_base_virtaddr(const char *arg)
1117 {
1118         char *end;
1119         uint64_t addr;
1120
1121         errno = 0;
1122         addr = strtoull(arg, &end, 16);
1123
1124         /* check for errors */
1125         if ((errno != 0) || (arg[0] == '\0') || end == NULL || (*end != '\0'))
1126                 return -1;
1127
1128         /* make sure we don't exceed 32-bit boundary on 32-bit target */
1129 #ifndef RTE_ARCH_64
1130         if (addr >= UINTPTR_MAX)
1131                 return -1;
1132 #endif
1133
1134         /* align the addr on 16M boundary, 16MB is the minimum huge page
1135          * size on IBM Power architecture. If the addr is aligned to 16MB,
1136          * it can align to 2MB for x86. So this alignment can also be used
1137          * on x86 and other architectures.
1138          */
1139         internal_config.base_virtaddr =
1140                 RTE_PTR_ALIGN_CEIL((uintptr_t)addr, (size_t)RTE_PGSIZE_16M);
1141
1142         return 0;
1143 }
1144
1145 /* caller is responsible for freeing the returned string */
1146 static char *
1147 available_cores(void)
1148 {
1149         char *str = NULL;
1150         int previous;
1151         int sequence;
1152         char *tmp;
1153         int idx;
1154
1155         /* find the first available cpu */
1156         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
1157                 if (eal_cpu_detected(idx) == 0)
1158                         continue;
1159                 break;
1160         }
1161         if (idx >= RTE_MAX_LCORE)
1162                 return NULL;
1163
1164         /* first sequence */
1165         if (asprintf(&str, "%d", idx) < 0)
1166                 return NULL;
1167         previous = idx;
1168         sequence = 0;
1169
1170         for (idx++ ; idx < RTE_MAX_LCORE; idx++) {
1171                 if (eal_cpu_detected(idx) == 0)
1172                         continue;
1173
1174                 if (idx == previous + 1) {
1175                         previous = idx;
1176                         sequence = 1;
1177                         continue;
1178                 }
1179
1180                 /* finish current sequence */
1181                 if (sequence) {
1182                         if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
1183                                 free(str);
1184                                 return NULL;
1185                         }
1186                         free(str);
1187                         str = tmp;
1188                 }
1189
1190                 /* new sequence */
1191                 if (asprintf(&tmp, "%s,%d", str, idx) < 0) {
1192                         free(str);
1193                         return NULL;
1194                 }
1195                 free(str);
1196                 str = tmp;
1197                 previous = idx;
1198                 sequence = 0;
1199         }
1200
1201         /* finish last sequence */
1202         if (sequence) {
1203                 if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
1204                         free(str);
1205                         return NULL;
1206                 }
1207                 free(str);
1208                 str = tmp;
1209         }
1210
1211         return str;
1212 }
1213
1214 int
1215 eal_parse_common_option(int opt, const char *optarg,
1216                         struct internal_config *conf)
1217 {
1218         static int b_used;
1219         static int w_used;
1220
1221         switch (opt) {
1222         /* blacklist */
1223         case 'b':
1224                 if (w_used)
1225                         goto bw_used;
1226                 if (eal_option_device_add(RTE_DEVTYPE_BLACKLISTED_PCI,
1227                                 optarg) < 0) {
1228                         return -1;
1229                 }
1230                 b_used = 1;
1231                 break;
1232         /* whitelist */
1233         case 'w':
1234                 if (b_used)
1235                         goto bw_used;
1236                 if (eal_option_device_add(RTE_DEVTYPE_WHITELISTED_PCI,
1237                                 optarg) < 0) {
1238                         return -1;
1239                 }
1240                 w_used = 1;
1241                 break;
1242         /* coremask */
1243         case 'c': {
1244                 int lcore_indexes[RTE_MAX_LCORE];
1245
1246                 if (eal_service_cores_parsed())
1247                         RTE_LOG(WARNING, EAL,
1248                                 "Service cores parsed before dataplane cores. Please ensure -c is before -s or -S\n");
1249                 if (eal_parse_coremask(optarg, lcore_indexes) < 0) {
1250                         RTE_LOG(ERR, EAL, "invalid coremask syntax\n");
1251                         return -1;
1252                 }
1253                 if (update_lcore_config(lcore_indexes) < 0) {
1254                         char *available = available_cores();
1255
1256                         RTE_LOG(ERR, EAL,
1257                                 "invalid coremask, please check specified cores are part of %s\n",
1258                                 available);
1259                         free(available);
1260                         return -1;
1261                 }
1262
1263                 if (core_parsed) {
1264                         RTE_LOG(ERR, EAL, "Option -c is ignored, because (%s) is set!\n",
1265                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1266                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1267                                 "-c");
1268                         return -1;
1269                 }
1270
1271                 core_parsed = LCORE_OPT_MSK;
1272                 break;
1273         }
1274         /* corelist */
1275         case 'l': {
1276                 int lcore_indexes[RTE_MAX_LCORE];
1277
1278                 if (eal_service_cores_parsed())
1279                         RTE_LOG(WARNING, EAL,
1280                                 "Service cores parsed before dataplane cores. Please ensure -l is before -s or -S\n");
1281
1282                 if (eal_parse_corelist(optarg, lcore_indexes) < 0) {
1283                         RTE_LOG(ERR, EAL, "invalid core list syntax\n");
1284                         return -1;
1285                 }
1286                 if (update_lcore_config(lcore_indexes) < 0) {
1287                         char *available = available_cores();
1288
1289                         RTE_LOG(ERR, EAL,
1290                                 "invalid core list, please check specified cores are part of %s\n",
1291                                 available);
1292                         free(available);
1293                         return -1;
1294                 }
1295
1296                 if (core_parsed) {
1297                         RTE_LOG(ERR, EAL, "Option -l is ignored, because (%s) is set!\n",
1298                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1299                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1300                                 "-l");
1301                         return -1;
1302                 }
1303
1304                 core_parsed = LCORE_OPT_LST;
1305                 break;
1306         }
1307         /* service coremask */
1308         case 's':
1309                 if (eal_parse_service_coremask(optarg) < 0) {
1310                         RTE_LOG(ERR, EAL, "invalid service coremask\n");
1311                         return -1;
1312                 }
1313                 break;
1314         /* service corelist */
1315         case 'S':
1316                 if (eal_parse_service_corelist(optarg) < 0) {
1317                         RTE_LOG(ERR, EAL, "invalid service core list\n");
1318                         return -1;
1319                 }
1320                 break;
1321         /* size of memory */
1322         case 'm':
1323                 conf->memory = atoi(optarg);
1324                 conf->memory *= 1024ULL;
1325                 conf->memory *= 1024ULL;
1326                 mem_parsed = 1;
1327                 break;
1328         /* force number of channels */
1329         case 'n':
1330                 conf->force_nchannel = atoi(optarg);
1331                 if (conf->force_nchannel == 0) {
1332                         RTE_LOG(ERR, EAL, "invalid channel number\n");
1333                         return -1;
1334                 }
1335                 break;
1336         /* force number of ranks */
1337         case 'r':
1338                 conf->force_nrank = atoi(optarg);
1339                 if (conf->force_nrank == 0 ||
1340                     conf->force_nrank > 16) {
1341                         RTE_LOG(ERR, EAL, "invalid rank number\n");
1342                         return -1;
1343                 }
1344                 break;
1345         /* force loading of external driver */
1346         case 'd':
1347                 if (eal_plugin_add(optarg) == -1)
1348                         return -1;
1349                 break;
1350         case 'v':
1351                 /* since message is explicitly requested by user, we
1352                  * write message at highest log level so it can always
1353                  * be seen
1354                  * even if info or warning messages are disabled */
1355                 RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
1356                 break;
1357
1358         /* long options */
1359         case OPT_HUGE_UNLINK_NUM:
1360                 conf->hugepage_unlink = 1;
1361                 break;
1362
1363         case OPT_NO_HUGE_NUM:
1364                 conf->no_hugetlbfs = 1;
1365                 /* no-huge is legacy mem */
1366                 conf->legacy_mem = 1;
1367                 break;
1368
1369         case OPT_NO_PCI_NUM:
1370                 conf->no_pci = 1;
1371                 break;
1372
1373         case OPT_NO_HPET_NUM:
1374                 conf->no_hpet = 1;
1375                 break;
1376
1377         case OPT_VMWARE_TSC_MAP_NUM:
1378                 conf->vmware_tsc_map = 1;
1379                 break;
1380
1381         case OPT_NO_SHCONF_NUM:
1382                 conf->no_shconf = 1;
1383                 break;
1384
1385         case OPT_IN_MEMORY_NUM:
1386                 conf->in_memory = 1;
1387                 /* in-memory is a superset of noshconf and huge-unlink */
1388                 conf->no_shconf = 1;
1389                 conf->hugepage_unlink = 1;
1390                 break;
1391
1392         case OPT_PROC_TYPE_NUM:
1393                 conf->process_type = eal_parse_proc_type(optarg);
1394                 break;
1395
1396         case OPT_MASTER_LCORE_NUM:
1397                 if (eal_parse_master_lcore(optarg) < 0) {
1398                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1399                                         OPT_MASTER_LCORE "\n");
1400                         return -1;
1401                 }
1402                 break;
1403
1404         case OPT_VDEV_NUM:
1405                 if (eal_option_device_add(RTE_DEVTYPE_VIRTUAL,
1406                                 optarg) < 0) {
1407                         return -1;
1408                 }
1409                 break;
1410
1411 #ifndef RTE_EXEC_ENV_WINDOWS
1412         case OPT_SYSLOG_NUM:
1413                 if (eal_parse_syslog(optarg, conf) < 0) {
1414                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1415                                         OPT_SYSLOG "\n");
1416                         return -1;
1417                 }
1418                 break;
1419 #endif
1420
1421         case OPT_LOG_LEVEL_NUM: {
1422                 if (eal_parse_log_level(optarg) < 0) {
1423                         RTE_LOG(ERR, EAL,
1424                                 "invalid parameters for --"
1425                                 OPT_LOG_LEVEL "\n");
1426                         return -1;
1427                 }
1428                 break;
1429         }
1430
1431 #ifndef RTE_EXEC_ENV_WINDOWS
1432         case OPT_TRACE_NUM: {
1433                 if (eal_trace_args_save(optarg) < 0) {
1434                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1435                                 OPT_TRACE "\n");
1436                         return -1;
1437                 }
1438                 break;
1439         }
1440
1441         case OPT_TRACE_DIR_NUM: {
1442                 if (eal_trace_dir_args_save(optarg) < 0) {
1443                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1444                                 OPT_TRACE_DIR "\n");
1445                         return -1;
1446                 }
1447                 break;
1448         }
1449
1450         case OPT_TRACE_BUF_SIZE_NUM: {
1451                 if (eal_trace_bufsz_args_save(optarg) < 0) {
1452                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1453                                 OPT_TRACE_BUF_SIZE "\n");
1454                         return -1;
1455                 }
1456                 break;
1457         }
1458
1459         case OPT_TRACE_MODE_NUM: {
1460                 if (eal_trace_mode_args_save(optarg) < 0) {
1461                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1462                                 OPT_TRACE_MODE "\n");
1463                         return -1;
1464                 }
1465                 break;
1466         }
1467 #endif /* !RTE_EXEC_ENV_WINDOWS */
1468
1469         case OPT_LCORES_NUM:
1470                 if (eal_parse_lcores(optarg) < 0) {
1471                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1472                                 OPT_LCORES "\n");
1473                         return -1;
1474                 }
1475
1476                 if (core_parsed) {
1477                         RTE_LOG(ERR, EAL, "Option --lcore is ignored, because (%s) is set!\n",
1478                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1479                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1480                                 "--lcore");
1481                         return -1;
1482                 }
1483
1484                 core_parsed = LCORE_OPT_MAP;
1485                 break;
1486         case OPT_LEGACY_MEM_NUM:
1487                 conf->legacy_mem = 1;
1488                 break;
1489         case OPT_SINGLE_FILE_SEGMENTS_NUM:
1490                 conf->single_file_segments = 1;
1491                 break;
1492         case OPT_IOVA_MODE_NUM:
1493                 if (eal_parse_iova_mode(optarg) < 0) {
1494                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1495                                 OPT_IOVA_MODE "\n");
1496                         return -1;
1497                 }
1498                 break;
1499         case OPT_BASE_VIRTADDR_NUM:
1500                 if (eal_parse_base_virtaddr(optarg) < 0) {
1501                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1502                                         OPT_BASE_VIRTADDR "\n");
1503                         return -1;
1504                 }
1505                 break;
1506         case OPT_TELEMETRY_NUM:
1507                 break;
1508         case OPT_NO_TELEMETRY_NUM:
1509                 conf->no_telemetry = 1;
1510                 break;
1511
1512         /* don't know what to do, leave this to caller */
1513         default:
1514                 return 1;
1515
1516         }
1517
1518         return 0;
1519 bw_used:
1520         RTE_LOG(ERR, EAL, "Options blacklist (-b) and whitelist (-w) "
1521                 "cannot be used at the same time\n");
1522         return -1;
1523 }
1524
1525 static void
1526 eal_auto_detect_cores(struct rte_config *cfg)
1527 {
1528         unsigned int lcore_id;
1529         unsigned int removed = 0;
1530         rte_cpuset_t affinity_set;
1531
1532         if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1533                                 &affinity_set))
1534                 CPU_ZERO(&affinity_set);
1535
1536         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1537                 if (cfg->lcore_role[lcore_id] == ROLE_RTE &&
1538                     !CPU_ISSET(lcore_id, &affinity_set)) {
1539                         cfg->lcore_role[lcore_id] = ROLE_OFF;
1540                         removed++;
1541                 }
1542         }
1543
1544         cfg->lcore_count -= removed;
1545 }
1546
1547 static void
1548 compute_ctrl_threads_cpuset(struct internal_config *internal_cfg)
1549 {
1550         rte_cpuset_t *cpuset = &internal_cfg->ctrl_cpuset;
1551         rte_cpuset_t default_set;
1552         unsigned int lcore_id;
1553
1554         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1555                 if (rte_lcore_has_role(lcore_id, ROLE_OFF))
1556                         continue;
1557                 RTE_CPU_OR(cpuset, cpuset, &lcore_config[lcore_id].cpuset);
1558         }
1559         RTE_CPU_NOT(cpuset, cpuset);
1560
1561         if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1562                                 &default_set))
1563                 CPU_ZERO(&default_set);
1564
1565         RTE_CPU_AND(cpuset, cpuset, &default_set);
1566
1567         /* if no remaining cpu, use master lcore cpu affinity */
1568         if (!CPU_COUNT(cpuset)) {
1569                 memcpy(cpuset, &lcore_config[rte_get_master_lcore()].cpuset,
1570                         sizeof(*cpuset));
1571         }
1572 }
1573
1574 int
1575 eal_cleanup_config(struct internal_config *internal_cfg)
1576 {
1577         if (internal_cfg->hugefile_prefix != NULL)
1578                 free(internal_cfg->hugefile_prefix);
1579         if (internal_cfg->hugepage_dir != NULL)
1580                 free(internal_cfg->hugepage_dir);
1581         if (internal_cfg->user_mbuf_pool_ops_name != NULL)
1582                 free(internal_cfg->user_mbuf_pool_ops_name);
1583
1584         return 0;
1585 }
1586
1587 int
1588 eal_adjust_config(struct internal_config *internal_cfg)
1589 {
1590         int i;
1591         struct rte_config *cfg = rte_eal_get_configuration();
1592
1593         if (!core_parsed)
1594                 eal_auto_detect_cores(cfg);
1595
1596         if (internal_config.process_type == RTE_PROC_AUTO)
1597                 internal_config.process_type = eal_proc_type_detect();
1598
1599         /* default master lcore is the first one */
1600         if (!master_lcore_parsed) {
1601                 cfg->master_lcore = rte_get_next_lcore(-1, 0, 0);
1602                 if (cfg->master_lcore >= RTE_MAX_LCORE)
1603                         return -1;
1604                 lcore_config[cfg->master_lcore].core_role = ROLE_RTE;
1605         }
1606
1607         compute_ctrl_threads_cpuset(internal_cfg);
1608
1609         /* if no memory amounts were requested, this will result in 0 and
1610          * will be overridden later, right after eal_hugepage_info_init() */
1611         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
1612                 internal_cfg->memory += internal_cfg->socket_mem[i];
1613
1614         return 0;
1615 }
1616
1617 int
1618 eal_check_common_options(struct internal_config *internal_cfg)
1619 {
1620         struct rte_config *cfg = rte_eal_get_configuration();
1621
1622         if (cfg->lcore_role[cfg->master_lcore] != ROLE_RTE) {
1623                 RTE_LOG(ERR, EAL, "Master lcore is not enabled for DPDK\n");
1624                 return -1;
1625         }
1626
1627         if (internal_cfg->process_type == RTE_PROC_INVALID) {
1628                 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
1629                 return -1;
1630         }
1631         if (internal_cfg->hugefile_prefix != NULL &&
1632                         strlen(internal_cfg->hugefile_prefix) < 1) {
1633                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_FILE_PREFIX " option\n");
1634                 return -1;
1635         }
1636         if (internal_cfg->hugepage_dir != NULL &&
1637                         strlen(internal_cfg->hugepage_dir) < 1) {
1638                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_HUGE_DIR" option\n");
1639                 return -1;
1640         }
1641         if (internal_cfg->user_mbuf_pool_ops_name != NULL &&
1642                         strlen(internal_cfg->user_mbuf_pool_ops_name) < 1) {
1643                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_MBUF_POOL_OPS_NAME" option\n");
1644                 return -1;
1645         }
1646         if (index(eal_get_hugefile_prefix(), '%') != NULL) {
1647                 RTE_LOG(ERR, EAL, "Invalid char, '%%', in --"OPT_FILE_PREFIX" "
1648                         "option\n");
1649                 return -1;
1650         }
1651         if (mem_parsed && internal_cfg->force_sockets == 1) {
1652                 RTE_LOG(ERR, EAL, "Options -m and --"OPT_SOCKET_MEM" cannot "
1653                         "be specified at the same time\n");
1654                 return -1;
1655         }
1656         if (internal_cfg->no_hugetlbfs && internal_cfg->force_sockets == 1) {
1657                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_MEM" cannot "
1658                         "be specified together with --"OPT_NO_HUGE"\n");
1659                 return -1;
1660         }
1661         if (internal_cfg->no_hugetlbfs && internal_cfg->hugepage_unlink &&
1662                         !internal_cfg->in_memory) {
1663                 RTE_LOG(ERR, EAL, "Option --"OPT_HUGE_UNLINK" cannot "
1664                         "be specified together with --"OPT_NO_HUGE"\n");
1665                 return -1;
1666         }
1667         if (internal_config.force_socket_limits && internal_config.legacy_mem) {
1668                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_LIMIT
1669                         " is only supported in non-legacy memory mode\n");
1670         }
1671         if (internal_cfg->single_file_segments &&
1672                         internal_cfg->hugepage_unlink &&
1673                         !internal_cfg->in_memory) {
1674                 RTE_LOG(ERR, EAL, "Option --"OPT_SINGLE_FILE_SEGMENTS" is "
1675                         "not compatible with --"OPT_HUGE_UNLINK"\n");
1676                 return -1;
1677         }
1678         if (internal_cfg->legacy_mem &&
1679                         internal_cfg->in_memory) {
1680                 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
1681                                 "with --"OPT_IN_MEMORY"\n");
1682                 return -1;
1683         }
1684         if (internal_cfg->legacy_mem && internal_cfg->match_allocations) {
1685                 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
1686                                 "with --"OPT_MATCH_ALLOCATIONS"\n");
1687                 return -1;
1688         }
1689         if (internal_cfg->no_hugetlbfs && internal_cfg->match_allocations) {
1690                 RTE_LOG(ERR, EAL, "Option --"OPT_NO_HUGE" is not compatible "
1691                                 "with --"OPT_MATCH_ALLOCATIONS"\n");
1692                 return -1;
1693         }
1694         if (internal_cfg->legacy_mem && internal_cfg->memory == 0) {
1695                 RTE_LOG(NOTICE, EAL, "Static memory layout is selected, "
1696                         "amount of reserved memory can be adjusted with "
1697                         "-m or --"OPT_SOCKET_MEM"\n");
1698         }
1699
1700         return 0;
1701 }
1702
1703 void
1704 eal_common_usage(void)
1705 {
1706         printf("[options]\n\n"
1707                "EAL common options:\n"
1708                "  -c COREMASK         Hexadecimal bitmask of cores to run on\n"
1709                "  -l CORELIST         List of cores to run on\n"
1710                "                      The argument format is <c1>[-c2][,c3[-c4],...]\n"
1711                "                      where c1, c2, etc are core indexes between 0 and %d\n"
1712                "  --"OPT_LCORES" COREMAP    Map lcore set to physical cpu set\n"
1713                "                      The argument format is\n"
1714                "                            '<lcores[@cpus]>[<,lcores[@cpus]>...]'\n"
1715                "                      lcores and cpus list are grouped by '(' and ')'\n"
1716                "                      Within the group, '-' is used for range separator,\n"
1717                "                      ',' is used for single number separator.\n"
1718                "                      '( )' can be omitted for single element group,\n"
1719                "                      '@' can be omitted if cpus and lcores have the same value\n"
1720                "  -s SERVICE COREMASK Hexadecimal bitmask of cores to be used as service cores\n"
1721                "  --"OPT_MASTER_LCORE" ID   Core ID that is used as master\n"
1722                "  --"OPT_MBUF_POOL_OPS_NAME" Pool ops name for mbuf to use\n"
1723                "  -n CHANNELS         Number of memory channels\n"
1724                "  -m MB               Memory to allocate (see also --"OPT_SOCKET_MEM")\n"
1725                "  -r RANKS            Force number of memory ranks (don't detect)\n"
1726                "  -b, --"OPT_PCI_BLACKLIST" Add a PCI device in black list.\n"
1727                "                      Prevent EAL from using this PCI device. The argument\n"
1728                "                      format is <domain:bus:devid.func>.\n"
1729                "  -w, --"OPT_PCI_WHITELIST" Add a PCI device in white list.\n"
1730                "                      Only use the specified PCI devices. The argument format\n"
1731                "                      is <[domain:]bus:devid.func>. This option can be present\n"
1732                "                      several times (once per device).\n"
1733                "                      [NOTE: PCI whitelist cannot be used with -b option]\n"
1734                "  --"OPT_VDEV"              Add a virtual device.\n"
1735                "                      The argument format is <driver><id>[,key=val,...]\n"
1736                "                      (ex: --vdev=net_pcap0,iface=eth2).\n"
1737                "  --"OPT_IOVA_MODE"   Set IOVA mode. 'pa' for IOVA_PA\n"
1738                "                      'va' for IOVA_VA\n"
1739                "  -d LIB.so|DIR       Add a driver or driver directory\n"
1740                "                      (can be used multiple times)\n"
1741                "  --"OPT_VMWARE_TSC_MAP"    Use VMware TSC map instead of native RDTSC\n"
1742                "  --"OPT_PROC_TYPE"         Type of this process (primary|secondary|auto)\n"
1743 #ifndef RTE_EXEC_ENV_WINDOWS
1744                "  --"OPT_SYSLOG"            Set syslog facility\n"
1745 #endif
1746                "  --"OPT_LOG_LEVEL"=<int>   Set global log level\n"
1747                "  --"OPT_LOG_LEVEL"=<type-match>:<int>\n"
1748                "                      Set specific log level\n"
1749 #ifndef RTE_EXEC_ENV_WINDOWS
1750                "  --"OPT_TRACE"=<regex-match>\n"
1751                "                      Enable trace based on regular expression trace name.\n"
1752                "                      By default, the trace is disabled.\n"
1753                "                      User must specify this option to enable trace.\n"
1754                "  --"OPT_TRACE_DIR"=<directory path>\n"
1755                "                      Specify trace directory for trace output.\n"
1756                "                      By default, trace output will created at\n"
1757                "                      $HOME directory and parameter must be\n"
1758                "                      specified once only.\n"
1759                "  --"OPT_TRACE_BUF_SIZE"=<int>\n"
1760                "                      Specify maximum size of allocated memory\n"
1761                "                      for trace output for each thread. Valid\n"
1762                "                      unit can be either 'B|K|M' for 'Bytes',\n"
1763                "                      'KBytes' and 'MBytes' respectively.\n"
1764                "                      Default is 1MB and parameter must be\n"
1765                "                      specified once only.\n"
1766                "  --"OPT_TRACE_MODE"=<o[verwrite] | d[iscard]>\n"
1767                "                      Specify the mode of update of trace\n"
1768                "                      output file. Either update on a file can\n"
1769                "                      be wrapped or discarded when file size\n"
1770                "                      reaches its maximum limit.\n"
1771                "                      Default mode is 'overwrite' and parameter\n"
1772                "                      must be specified once only.\n"
1773 #endif /* !RTE_EXEC_ENV_WINDOWS */
1774                "  -v                  Display version information on startup\n"
1775                "  -h, --help          This help\n"
1776                "  --"OPT_IN_MEMORY"   Operate entirely in memory. This will\n"
1777                "                      disable secondary process support\n"
1778                "  --"OPT_BASE_VIRTADDR"     Base virtual address\n"
1779                "  --"OPT_TELEMETRY"   Enable telemetry support (on by default)\n"
1780                "  --"OPT_NO_TELEMETRY"   Disable telemetry support\n"
1781                "\nEAL options for DEBUG use only:\n"
1782                "  --"OPT_HUGE_UNLINK"       Unlink hugepage files after init\n"
1783                "  --"OPT_NO_HUGE"           Use malloc instead of hugetlbfs\n"
1784                "  --"OPT_NO_PCI"            Disable PCI\n"
1785                "  --"OPT_NO_HPET"           Disable HPET\n"
1786                "  --"OPT_NO_SHCONF"         No shared config (mmap'd files)\n"
1787                "\n", RTE_MAX_LCORE);
1788         rte_option_usage();
1789 }