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 #include "eal_trace.h"
  38
  39 #define BITS_PER_HEX 4
  40 #define LCORE_OPT_LST 1
  41 #define LCORE_OPT_MSK 2
  42 #define LCORE_OPT_MAP 3
  43
  44 const char
  45 eal_short_options[] =
  46         "b:" /* pci-blacklist */
  47         "c:" /* coremask */
  48         "s:" /* service coremask */
  49         "d:" /* driver */
  50         "h"  /* help */
  51         "l:" /* corelist */
  52         "S:" /* service corelist */
  53         "m:" /* memory size */
  54         "n:" /* memory channels */
  55         "r:" /* memory ranks */
  56         "v"  /* version */
  57         "w:" /* pci-whitelist */
  58         ;
  59
  60 const struct option
  61 eal_long_options[] = {
  62         {OPT_BASE_VIRTADDR,     1, NULL, OPT_BASE_VIRTADDR_NUM    },
  63         {OPT_CREATE_UIO_DEV,    0, NULL, OPT_CREATE_UIO_DEV_NUM   },
  64         {OPT_FILE_PREFIX,       1, NULL, OPT_FILE_PREFIX_NUM      },
  65         {OPT_HELP,              0, NULL, OPT_HELP_NUM             },
  66         {OPT_HUGE_DIR,          1, NULL, OPT_HUGE_DIR_NUM         },
  67         {OPT_HUGE_UNLINK,       0, NULL, OPT_HUGE_UNLINK_NUM      },
  68         {OPT_IOVA_MODE,         1, NULL, OPT_IOVA_MODE_NUM        },
  69         {OPT_LCORES,            1, NULL, OPT_LCORES_NUM           },
  70         {OPT_LOG_LEVEL,         1, NULL, OPT_LOG_LEVEL_NUM        },
  71         {OPT_TRACE,             1, NULL, OPT_TRACE_NUM            },
  72         {OPT_MASTER_LCORE,      1, NULL, OPT_MASTER_LCORE_NUM     },
  73         {OPT_MBUF_POOL_OPS_NAME, 1, NULL, OPT_MBUF_POOL_OPS_NAME_NUM},
  74         {OPT_NO_HPET,           0, NULL, OPT_NO_HPET_NUM          },
  75         {OPT_NO_HUGE,           0, NULL, OPT_NO_HUGE_NUM          },
  76         {OPT_NO_PCI,            0, NULL, OPT_NO_PCI_NUM           },
  77         {OPT_NO_SHCONF,         0, NULL, OPT_NO_SHCONF_NUM        },
  78         {OPT_IN_MEMORY,         0, NULL, OPT_IN_MEMORY_NUM        },
  79         {OPT_PCI_BLACKLIST,     1, NULL, OPT_PCI_BLACKLIST_NUM    },
  80         {OPT_PCI_WHITELIST,     1, NULL, OPT_PCI_WHITELIST_NUM    },
  81         {OPT_PROC_TYPE,         1, NULL, OPT_PROC_TYPE_NUM        },
  82         {OPT_SOCKET_MEM,        1, NULL, OPT_SOCKET_MEM_NUM       },
  83         {OPT_SOCKET_LIMIT,      1, NULL, OPT_SOCKET_LIMIT_NUM     },
  84         {OPT_SYSLOG,            1, NULL, OPT_SYSLOG_NUM           },
  85         {OPT_VDEV,              1, NULL, OPT_VDEV_NUM             },
  86         {OPT_VFIO_INTR,         1, NULL, OPT_VFIO_INTR_NUM        },
  87         {OPT_VMWARE_TSC_MAP,    0, NULL, OPT_VMWARE_TSC_MAP_NUM   },
  88         {OPT_LEGACY_MEM,        0, NULL, OPT_LEGACY_MEM_NUM       },
  89         {OPT_SINGLE_FILE_SEGMENTS, 0, NULL, OPT_SINGLE_FILE_SEGMENTS_NUM},
  90         {OPT_MATCH_ALLOCATIONS, 0, NULL, OPT_MATCH_ALLOCATIONS_NUM},
  91         {0,                     0, NULL, 0                        }
  92 };
  93
  94 TAILQ_HEAD(shared_driver_list, shared_driver);
  95
  96 /* Definition for shared object drivers. */
  97 struct shared_driver {
  98         TAILQ_ENTRY(shared_driver) next;
  99
 100         char    name[PATH_MAX];
 101         void*   lib_handle;
 102 };
 103
 104 /* List of external loadable drivers */
 105 static struct shared_driver_list solib_list =
 106 TAILQ_HEAD_INITIALIZER(solib_list);
 107
 108 /* Default path of external loadable drivers */
 109 static const char *default_solib_dir = RTE_EAL_PMD_PATH;
 110
 111 /*
 112  * Stringified version of solib path used by dpdk-pmdinfo.py
 113  * Note: PLEASE DO NOT ALTER THIS without making a corresponding
 114  * change to usertools/dpdk-pmdinfo.py
 115  */
 116 static const char dpdk_solib_path[] __rte_used =
 117 "DPDK_PLUGIN_PATH=" RTE_EAL_PMD_PATH;
 118
 119 TAILQ_HEAD(device_option_list, device_option);
 120
 121 struct device_option {
 122         TAILQ_ENTRY(device_option) next;
 123
 124         enum rte_devtype type;
 125         char arg[];
 126 };
 127
 128 static struct device_option_list devopt_list =
 129 TAILQ_HEAD_INITIALIZER(devopt_list);
 130
 131 static int master_lcore_parsed;
 132 static int mem_parsed;
 133 static int core_parsed;
 134
 135 static int
 136 eal_option_device_add(enum rte_devtype type, const char *optarg)
 137 {
 138         struct device_option *devopt;
 139         size_t optlen;
 140         int ret;
 141
 142         optlen = strlen(optarg) + 1;
 143         devopt = calloc(1, sizeof(*devopt) + optlen);
 144         if (devopt == NULL) {
 145                 RTE_LOG(ERR, EAL, "Unable to allocate device option\n");
 146                 return -ENOMEM;
 147         }
 148
 149         devopt->type = type;
 150         ret = strlcpy(devopt->arg, optarg, optlen);
 151         if (ret < 0) {
 152                 RTE_LOG(ERR, EAL, "Unable to copy device option\n");
 153                 free(devopt);
 154                 return -EINVAL;
 155         }
 156         TAILQ_INSERT_TAIL(&devopt_list, devopt, next);
 157         return 0;
 158 }
 159
 160 int
 161 eal_option_device_parse(void)
 162 {
 163         struct device_option *devopt;
 164         void *tmp;
 165         int ret = 0;
 166
 167         TAILQ_FOREACH_SAFE(devopt, &devopt_list, next, tmp) {
 168                 if (ret == 0) {
 169                         ret = rte_devargs_add(devopt->type, devopt->arg);
 170                         if (ret)
 171                                 RTE_LOG(ERR, EAL, "Unable to parse device '%s'\n",
 172                                         devopt->arg);
 173                 }
 174                 TAILQ_REMOVE(&devopt_list, devopt, next);
 175                 free(devopt);
 176         }
 177         return ret;
 178 }
 179
 180 const char *
 181 eal_get_hugefile_prefix(void)
 182 {
 183         if (internal_config.hugefile_prefix != NULL)
 184                 return internal_config.hugefile_prefix;
 185         return HUGEFILE_PREFIX_DEFAULT;
 186 }
 187
 188 void
 189 eal_reset_internal_config(struct internal_config *internal_cfg)
 190 {
 191         int i;
 192
 193         internal_cfg->memory = 0;
 194         internal_cfg->force_nrank = 0;
 195         internal_cfg->force_nchannel = 0;
 196         internal_cfg->hugefile_prefix = NULL;
 197         internal_cfg->hugepage_dir = NULL;
 198         internal_cfg->force_sockets = 0;
 199         /* zero out the NUMA config */
 200         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 201                 internal_cfg->socket_mem[i] = 0;
 202         internal_cfg->force_socket_limits = 0;
 203         /* zero out the NUMA limits config */
 204         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 205                 internal_cfg->socket_limit[i] = 0;
 206         /* zero out hugedir descriptors */
 207         for (i = 0; i < MAX_HUGEPAGE_SIZES; i++) {
 208                 memset(&internal_cfg->hugepage_info[i], 0,
 209                                 sizeof(internal_cfg->hugepage_info[0]));
 210                 internal_cfg->hugepage_info[i].lock_descriptor = -1;
 211         }
 212         internal_cfg->base_virtaddr = 0;
 213
 214 #ifdef LOG_DAEMON
 215         internal_cfg->syslog_facility = LOG_DAEMON;
 216 #endif
 217
 218         /* if set to NONE, interrupt mode is determined automatically */
 219         internal_cfg->vfio_intr_mode = RTE_INTR_MODE_NONE;
 220
 221 #ifdef RTE_LIBEAL_USE_HPET
 222         internal_cfg->no_hpet = 0;
 223 #else
 224         internal_cfg->no_hpet = 1;
 225 #endif
 226         internal_cfg->vmware_tsc_map = 0;
 227         internal_cfg->create_uio_dev = 0;
 228         internal_cfg->iova_mode = RTE_IOVA_DC;
 229         internal_cfg->user_mbuf_pool_ops_name = NULL;
 230         CPU_ZERO(&internal_cfg->ctrl_cpuset);
 231         internal_cfg->init_complete = 0;
 232 }
 233
 234 static int
 235 eal_plugin_add(const char *path)
 236 {
 237         struct shared_driver *solib;
 238
 239         solib = malloc(sizeof(*solib));
 240         if (solib == NULL) {
 241                 RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
 242                 return -1;
 243         }
 244         memset(solib, 0, sizeof(*solib));
 245         strlcpy(solib->name, path, PATH_MAX-1);
 246         solib->name[PATH_MAX-1] = 0;
 247         TAILQ_INSERT_TAIL(&solib_list, solib, next);
 248
 249         return 0;
 250 }
 251
 252 static int
 253 eal_plugindir_init(const char *path)
 254 {
 255         DIR *d = NULL;
 256         struct dirent *dent = NULL;
 257         char sopath[PATH_MAX];
 258
 259         if (path == NULL || *path == '\0')
 260                 return 0;
 261
 262         d = opendir(path);
 263         if (d == NULL) {
 264                 RTE_LOG(ERR, EAL, "failed to open directory %s: %s\n",
 265                         path, strerror(errno));
 266                 return -1;
 267         }
 268
 269         while ((dent = readdir(d)) != NULL) {
 270                 struct stat sb;
 271
 272                 snprintf(sopath, sizeof(sopath), "%s/%s", path, dent->d_name);
 273
 274                 if (!(stat(sopath, &sb) == 0 && S_ISREG(sb.st_mode)))
 275                         continue;
 276
 277                 if (eal_plugin_add(sopath) == -1)
 278                         break;
 279         }
 280
 281         closedir(d);
 282         /* XXX this ignores failures from readdir() itself */
 283         return (dent == NULL) ? 0 : -1;
 284 }
 285
 286 int
 287 eal_plugins_init(void)
 288 {
 289 #ifndef RTE_EXEC_ENV_WINDOWS
 290         struct shared_driver *solib = NULL;
 291         struct stat sb;
 292
 293         if (*default_solib_dir != '\0' && stat(default_solib_dir, &sb) == 0 &&
 294                                 S_ISDIR(sb.st_mode))
 295                 eal_plugin_add(default_solib_dir);
 296
 297         TAILQ_FOREACH(solib, &solib_list, next) {
 298
 299                 if (stat(solib->name, &sb) == 0 && S_ISDIR(sb.st_mode)) {
 300                         if (eal_plugindir_init(solib->name) == -1) {
 301                                 RTE_LOG(ERR, EAL,
 302                                         "Cannot init plugin directory %s\n",
 303                                         solib->name);
 304                                 return -1;
 305                         }
 306                 } else {
 307                         RTE_LOG(DEBUG, EAL, "open shared lib %s\n",
 308                                 solib->name);
 309                         solib->lib_handle = dlopen(solib->name, RTLD_NOW);
 310                         if (solib->lib_handle == NULL) {
 311                                 RTE_LOG(ERR, EAL, "%s\n", dlerror());
 312                                 return -1;
 313                         }
 314                 }
 315
 316         }
 317         return 0;
 318 #endif
 319 }
 320
 321 /*
 322  * Parse the coremask given as argument (hexadecimal string) and fill
 323  * the global configuration (core role and core count) with the parsed
 324  * value.
 325  */
 326 static int xdigit2val(unsigned char c)
 327 {
 328         int val;
 329
 330         if (isdigit(c))
 331                 val = c - '0';
 332         else if (isupper(c))
 333                 val = c - 'A' + 10;
 334         else
 335                 val = c - 'a' + 10;
 336         return val;
 337 }
 338
 339 static int
 340 eal_parse_service_coremask(const char *coremask)
 341 {
 342         struct rte_config *cfg = rte_eal_get_configuration();
 343         int i, j, idx = 0;
 344         unsigned int count = 0;
 345         char c;
 346         int val;
 347         uint32_t taken_lcore_count = 0;
 348
 349         if (coremask == NULL)
 350                 return -1;
 351         /* Remove all blank characters ahead and after .
 352          * Remove 0x/0X if exists.
 353          */
 354         while (isblank(*coremask))
 355                 coremask++;
 356         if (coremask[0] == '0' && ((coremask[1] == 'x')
 357                 || (coremask[1] == 'X')))
 358                 coremask += 2;
 359         i = strlen(coremask);
 360         while ((i > 0) && isblank(coremask[i - 1]))
 361                 i--;
 362
 363         if (i == 0)
 364                 return -1;
 365
 366         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 367                 c = coremask[i];
 368                 if (isxdigit(c) == 0) {
 369                         /* invalid characters */
 370                         return -1;
 371                 }
 372                 val = xdigit2val(c);
 373                 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE;
 374                                 j++, idx++) {
 375                         if ((1 << j) & val) {
 376                                 /* handle master lcore already parsed */
 377                                 uint32_t lcore = idx;
 378                                 if (master_lcore_parsed &&
 379                                                 cfg->master_lcore == lcore) {
 380                                         RTE_LOG(ERR, EAL,
 381                                                 "lcore %u is master lcore, cannot use as service core\n",
 382                                                 idx);
 383                                         return -1;
 384                                 }
 385
 386                                 if (eal_cpu_detected(idx) == 0) {
 387                                         RTE_LOG(ERR, EAL,
 388                                                 "lcore %u unavailable\n", idx);
 389                                         return -1;
 390                                 }
 391
 392                                 if (cfg->lcore_role[idx] == ROLE_RTE)
 393                                         taken_lcore_count++;
 394
 395                                 lcore_config[idx].core_role = ROLE_SERVICE;
 396                                 count++;
 397                         }
 398                 }
 399         }
 400
 401         for (; i >= 0; i--)
 402                 if (coremask[i] != '0')
 403                         return -1;
 404
 405         for (; idx < RTE_MAX_LCORE; idx++)
 406                 lcore_config[idx].core_index = -1;
 407
 408         if (count == 0)
 409                 return -1;
 410
 411         if (core_parsed && taken_lcore_count != count) {
 412                 RTE_LOG(WARNING, EAL,
 413                         "Not all service cores are in the coremask. "
 414                         "Please ensure -c or -l includes service cores\n");
 415         }
 416
 417         cfg->service_lcore_count = count;
 418         return 0;
 419 }
 420
 421 static int
 422 eal_service_cores_parsed(void)
 423 {
 424         int idx;
 425         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 426                 if (lcore_config[idx].core_role == ROLE_SERVICE)
 427                         return 1;
 428         }
 429         return 0;
 430 }
 431
 432 static int
 433 update_lcore_config(int *cores)
 434 {
 435         struct rte_config *cfg = rte_eal_get_configuration();
 436         unsigned int count = 0;
 437         unsigned int i;
 438         int ret = 0;
 439
 440         for (i = 0; i < RTE_MAX_LCORE; i++) {
 441                 if (cores[i] != -1) {
 442                         if (eal_cpu_detected(i) == 0) {
 443                                 RTE_LOG(ERR, EAL, "lcore %u unavailable\n", i);
 444                                 ret = -1;
 445                                 continue;
 446                         }
 447                         cfg->lcore_role[i] = ROLE_RTE;
 448                         count++;
 449                 } else {
 450                         cfg->lcore_role[i] = ROLE_OFF;
 451                 }
 452                 lcore_config[i].core_index = cores[i];
 453         }
 454         if (!ret)
 455                 cfg->lcore_count = count;
 456         return ret;
 457 }
 458
 459 static int
 460 eal_parse_coremask(const char *coremask, int *cores)
 461 {
 462         unsigned count = 0;
 463         int i, j, idx;
 464         int val;
 465         char c;
 466
 467         for (idx = 0; idx < RTE_MAX_LCORE; idx++)
 468                 cores[idx] = -1;
 469         idx = 0;
 470
 471         /* Remove all blank characters ahead and after .
 472          * Remove 0x/0X if exists.
 473          */
 474         while (isblank(*coremask))
 475                 coremask++;
 476         if (coremask[0] == '0' && ((coremask[1] == 'x')
 477                 || (coremask[1] == 'X')))
 478                 coremask += 2;
 479         i = strlen(coremask);
 480         while ((i > 0) && isblank(coremask[i - 1]))
 481                 i--;
 482         if (i == 0)
 483                 return -1;
 484
 485         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 486                 c = coremask[i];
 487                 if (isxdigit(c) == 0) {
 488                         /* invalid characters */
 489                         return -1;
 490                 }
 491                 val = xdigit2val(c);
 492                 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++)
 493                 {
 494                         if ((1 << j) & val) {
 495                                 cores[idx] = count;
 496                                 count++;
 497                         }
 498                 }
 499         }
 500         for (; i >= 0; i--)
 501                 if (coremask[i] != '0')
 502                         return -1;
 503         if (count == 0)
 504                 return -1;
 505         return 0;
 506 }
 507
 508 static int
 509 eal_parse_service_corelist(const char *corelist)
 510 {
 511         struct rte_config *cfg = rte_eal_get_configuration();
 512         int i, idx = 0;
 513         unsigned count = 0;
 514         char *end = NULL;
 515         int min, max;
 516         uint32_t taken_lcore_count = 0;
 517
 518         if (corelist == NULL)
 519                 return -1;
 520
 521         /* Remove all blank characters ahead and after */
 522         while (isblank(*corelist))
 523                 corelist++;
 524         i = strlen(corelist);
 525         while ((i > 0) && isblank(corelist[i - 1]))
 526                 i--;
 527
 528         /* Get list of cores */
 529         min = RTE_MAX_LCORE;
 530         do {
 531                 while (isblank(*corelist))
 532                         corelist++;
 533                 if (*corelist == '\0')
 534                         return -1;
 535                 errno = 0;
 536                 idx = strtoul(corelist, &end, 10);
 537                 if (errno || end == NULL)
 538                         return -1;
 539                 while (isblank(*end))
 540                         end++;
 541                 if (*end == '-') {
 542                         min = idx;
 543                 } else if ((*end == ',') || (*end == '\0')) {
 544                         max = idx;
 545                         if (min == RTE_MAX_LCORE)
 546                                 min = idx;
 547                         for (idx = min; idx <= max; idx++) {
 548                                 if (cfg->lcore_role[idx] != ROLE_SERVICE) {
 549                                         /* handle master lcore already parsed */
 550                                         uint32_t lcore = idx;
 551                                         if (cfg->master_lcore == lcore &&
 552                                                         master_lcore_parsed) {
 553                                                 RTE_LOG(ERR, EAL,
 554                                                         "Error: lcore %u is master lcore, cannot use as service core\n",
 555                                                         idx);
 556                                                 return -1;
 557                                         }
 558                                         if (cfg->lcore_role[idx] == ROLE_RTE)
 559                                                 taken_lcore_count++;
 560
 561                                         lcore_config[idx].core_role =
 562                                                         ROLE_SERVICE;
 563                                         count++;
 564                                 }
 565                         }
 566                         min = RTE_MAX_LCORE;
 567                 } else
 568                         return -1;
 569                 corelist = end + 1;
 570         } while (*end != '\0');
 571
 572         if (count == 0)
 573                 return -1;
 574
 575         if (core_parsed && taken_lcore_count != count) {
 576                 RTE_LOG(WARNING, EAL,
 577                         "Not all service cores were in the coremask. "
 578                         "Please ensure -c or -l includes service cores\n");
 579         }
 580
 581         return 0;
 582 }
 583
 584 static int
 585 eal_parse_corelist(const char *corelist, int *cores)
 586 {
 587         unsigned count = 0;
 588         char *end = NULL;
 589         int min, max;
 590         int idx;
 591
 592         for (idx = 0; idx < RTE_MAX_LCORE; idx++)
 593                 cores[idx] = -1;
 594
 595         /* Remove all blank characters ahead */
 596         while (isblank(*corelist))
 597                 corelist++;
 598
 599         /* Get list of cores */
 600         min = RTE_MAX_LCORE;
 601         do {
 602                 while (isblank(*corelist))
 603                         corelist++;
 604                 if (*corelist == '\0')
 605                         return -1;
 606                 errno = 0;
 607                 idx = strtol(corelist, &end, 10);
 608                 if (errno || end == NULL)
 609                         return -1;
 610                 if (idx < 0 || idx >= RTE_MAX_LCORE)
 611                         return -1;
 612                 while (isblank(*end))
 613                         end++;
 614                 if (*end == '-') {
 615                         min = idx;
 616                 } else if ((*end == ',') || (*end == '\0')) {
 617                         max = idx;
 618                         if (min == RTE_MAX_LCORE)
 619                                 min = idx;
 620                         for (idx = min; idx <= max; idx++) {
 621                                 if (cores[idx] == -1) {
 622                                         cores[idx] = count;
 623                                         count++;
 624                                 }
 625                         }
 626                         min = RTE_MAX_LCORE;
 627                 } else
 628                         return -1;
 629                 corelist = end + 1;
 630         } while (*end != '\0');
 631
 632         if (count == 0)
 633                 return -1;
 634         return 0;
 635 }
 636
 637 /* Changes the lcore id of the master thread */
 638 static int
 639 eal_parse_master_lcore(const char *arg)
 640 {
 641         char *parsing_end;
 642         struct rte_config *cfg = rte_eal_get_configuration();
 643
 644         errno = 0;
 645         cfg->master_lcore = (uint32_t) strtol(arg, &parsing_end, 0);
 646         if (errno || parsing_end[0] != 0)
 647                 return -1;
 648         if (cfg->master_lcore >= RTE_MAX_LCORE)
 649                 return -1;
 650         master_lcore_parsed = 1;
 651
 652         /* ensure master core is not used as service core */
 653         if (lcore_config[cfg->master_lcore].core_role == ROLE_SERVICE) {
 654                 RTE_LOG(ERR, EAL,
 655                         "Error: Master lcore is used as a service core\n");
 656                 return -1;
 657         }
 658
 659         return 0;
 660 }
 661
 662 /*
 663  * Parse elem, the elem could be single number/range or '(' ')' group
 664  * 1) A single number elem, it's just a simple digit. e.g. 9
 665  * 2) A single range elem, two digits with a '-' between. e.g. 2-6
 666  * 3) A group elem, combines multiple 1) or 2) with '( )'. e.g (0,2-4,6)
 667  *    Within group elem, '-' used for a range separator;
 668  *                       ',' used for a single number.
 669  */
 670 static int
 671 eal_parse_set(const char *input, rte_cpuset_t *set)
 672 {
 673         unsigned idx;
 674         const char *str = input;
 675         char *end = NULL;
 676         unsigned min, max;
 677
 678         CPU_ZERO(set);
 679
 680         while (isblank(*str))
 681                 str++;
 682
 683         /* only digit or left bracket is qualify for start point */
 684         if ((!isdigit(*str) && *str != '(') || *str == '\0')
 685                 return -1;
 686
 687         /* process single number or single range of number */
 688         if (*str != '(') {
 689                 errno = 0;
 690                 idx = strtoul(str, &end, 10);
 691                 if (errno || end == NULL || idx >= CPU_SETSIZE)
 692                         return -1;
 693                 else {
 694                         while (isblank(*end))
 695                                 end++;
 696
 697                         min = idx;
 698                         max = idx;
 699                         if (*end == '-') {
 700                                 /* process single <number>-<number> */
 701                                 end++;
 702                                 while (isblank(*end))
 703                                         end++;
 704                                 if (!isdigit(*end))
 705                                         return -1;
 706
 707                                 errno = 0;
 708                                 idx = strtoul(end, &end, 10);
 709                                 if (errno || end == NULL || idx >= CPU_SETSIZE)
 710                                         return -1;
 711                                 max = idx;
 712                                 while (isblank(*end))
 713                                         end++;
 714                                 if (*end != ',' && *end != '\0')
 715                                         return -1;
 716                         }
 717
 718                         if (*end != ',' && *end != '\0' &&
 719                             *end != '@')
 720                                 return -1;
 721
 722                         for (idx = RTE_MIN(min, max);
 723                              idx <= RTE_MAX(min, max); idx++)
 724                                 CPU_SET(idx, set);
 725
 726                         return end - input;
 727                 }
 728         }
 729
 730         /* process set within bracket */
 731         str++;
 732         while (isblank(*str))
 733                 str++;
 734         if (*str == '\0')
 735                 return -1;
 736
 737         min = RTE_MAX_LCORE;
 738         do {
 739
 740                 /* go ahead to the first digit */
 741                 while (isblank(*str))
 742                         str++;
 743                 if (!isdigit(*str))
 744                         return -1;
 745
 746                 /* get the digit value */
 747                 errno = 0;
 748                 idx = strtoul(str, &end, 10);
 749                 if (errno || end == NULL || idx >= CPU_SETSIZE)
 750                         return -1;
 751
 752                 /* go ahead to separator '-',',' and ')' */
 753                 while (isblank(*end))
 754                         end++;
 755                 if (*end == '-') {
 756                         if (min == RTE_MAX_LCORE)
 757                                 min = idx;
 758                         else /* avoid continuous '-' */
 759                                 return -1;
 760                 } else if ((*end == ',') || (*end == ')')) {
 761                         max = idx;
 762                         if (min == RTE_MAX_LCORE)
 763                                 min = idx;
 764                         for (idx = RTE_MIN(min, max);
 765                              idx <= RTE_MAX(min, max); idx++)
 766                                 CPU_SET(idx, set);
 767
 768                         min = RTE_MAX_LCORE;
 769                 } else
 770                         return -1;
 771
 772                 str = end + 1;
 773         } while (*end != '\0' && *end != ')');
 774
 775         /*
 776          * to avoid failure that tail blank makes end character check fail
 777          * in eal_parse_lcores( )
 778          */
 779         while (isblank(*str))
 780                 str++;
 781
 782         return str - input;
 783 }
 784
 785 static int
 786 check_cpuset(rte_cpuset_t *set)
 787 {
 788         unsigned int idx;
 789
 790         for (idx = 0; idx < CPU_SETSIZE; idx++) {
 791                 if (!CPU_ISSET(idx, set))
 792                         continue;
 793
 794                 if (eal_cpu_detected(idx) == 0) {
 795                         RTE_LOG(ERR, EAL, "core %u "
 796                                 "unavailable\n", idx);
 797                         return -1;
 798                 }
 799         }
 800         return 0;
 801 }
 802
 803 /*
 804  * The format pattern: --lcores='<lcores[@cpus]>[<,lcores[@cpus]>...]'
 805  * lcores, cpus could be a single digit/range or a group.
 806  * '(' and ')' are necessary if it's a group.
 807  * If not supply '@cpus', the value of cpus uses the same as lcores.
 808  * e.g. '1,2@(5-7),(3-5)@(0,2),(0,6),7-8' means start 9 EAL thread as below
 809  *   lcore 0 runs on cpuset 0x41 (cpu 0,6)
 810  *   lcore 1 runs on cpuset 0x2 (cpu 1)
 811  *   lcore 2 runs on cpuset 0xe0 (cpu 5,6,7)
 812  *   lcore 3,4,5 runs on cpuset 0x5 (cpu 0,2)
 813  *   lcore 6 runs on cpuset 0x41 (cpu 0,6)
 814  *   lcore 7 runs on cpuset 0x80 (cpu 7)
 815  *   lcore 8 runs on cpuset 0x100 (cpu 8)
 816  */
 817 static int
 818 eal_parse_lcores(const char *lcores)
 819 {
 820         struct rte_config *cfg = rte_eal_get_configuration();
 821         rte_cpuset_t lcore_set;
 822         unsigned int set_count;
 823         unsigned idx = 0;
 824         unsigned count = 0;
 825         const char *lcore_start = NULL;
 826         const char *end = NULL;
 827         int offset;
 828         rte_cpuset_t cpuset;
 829         int lflags;
 830         int ret = -1;
 831
 832         if (lcores == NULL)
 833                 return -1;
 834
 835         /* Remove all blank characters ahead and after */
 836         while (isblank(*lcores))
 837                 lcores++;
 838
 839         CPU_ZERO(&cpuset);
 840
 841         /* Reset lcore config */
 842         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 843                 cfg->lcore_role[idx] = ROLE_OFF;
 844                 lcore_config[idx].core_index = -1;
 845                 CPU_ZERO(&lcore_config[idx].cpuset);
 846         }
 847
 848         /* Get list of cores */
 849         do {
 850                 while (isblank(*lcores))
 851                         lcores++;
 852                 if (*lcores == '\0')
 853                         goto err;
 854
 855                 lflags = 0;
 856
 857                 /* record lcore_set start point */
 858                 lcore_start = lcores;
 859
 860                 /* go across a complete bracket */
 861                 if (*lcore_start == '(') {
 862                         lcores += strcspn(lcores, ")");
 863                         if (*lcores++ == '\0')
 864                                 goto err;
 865                 }
 866
 867                 /* scan the separator '@', ','(next) or '\0'(finish) */
 868                 lcores += strcspn(lcores, "@,");
 869
 870                 if (*lcores == '@') {
 871                         /* explicit assign cpuset and update the end cursor */
 872                         offset = eal_parse_set(lcores + 1, &cpuset);
 873                         if (offset < 0)
 874                                 goto err;
 875                         end = lcores + 1 + offset;
 876                 } else { /* ',' or '\0' */
 877                         /* haven't given cpuset, current loop done */
 878                         end = lcores;
 879
 880                         /* go back to check <number>-<number> */
 881                         offset = strcspn(lcore_start, "(-");
 882                         if (offset < (end - lcore_start) &&
 883                             *(lcore_start + offset) != '(')
 884                                 lflags = 1;
 885                 }
 886
 887                 if (*end != ',' && *end != '\0')
 888                         goto err;
 889
 890                 /* parse lcore_set from start point */
 891                 if (eal_parse_set(lcore_start, &lcore_set) < 0)
 892                         goto err;
 893
 894                 /* without '@', by default using lcore_set as cpuset */
 895                 if (*lcores != '@')
 896                         rte_memcpy(&cpuset, &lcore_set, sizeof(cpuset));
 897
 898                 set_count = CPU_COUNT(&lcore_set);
 899                 /* start to update lcore_set */
 900                 for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 901                         if (!CPU_ISSET(idx, &lcore_set))
 902                                 continue;
 903                         set_count--;
 904
 905                         if (cfg->lcore_role[idx] != ROLE_RTE) {
 906                                 lcore_config[idx].core_index = count;
 907                                 cfg->lcore_role[idx] = ROLE_RTE;
 908                                 count++;
 909                         }
 910
 911                         if (lflags) {
 912                                 CPU_ZERO(&cpuset);
 913                                 CPU_SET(idx, &cpuset);
 914                         }
 915
 916                         if (check_cpuset(&cpuset) < 0)
 917                                 goto err;
 918                         rte_memcpy(&lcore_config[idx].cpuset, &cpuset,
 919                                    sizeof(rte_cpuset_t));
 920                 }
 921
 922                 /* some cores from the lcore_set can't be handled by EAL */
 923                 if (set_count != 0)
 924                         goto err;
 925
 926                 lcores = end + 1;
 927         } while (*end != '\0');
 928
 929         if (count == 0)
 930                 goto err;
 931
 932         cfg->lcore_count = count;
 933         ret = 0;
 934
 935 err:
 936
 937         return ret;
 938 }
 939
 940 #ifndef RTE_EXEC_ENV_WINDOWS
 941 static int
 942 eal_parse_syslog(const char *facility, struct internal_config *conf)
 943 {
 944         int i;
 945         static const struct {
 946                 const char *name;
 947                 int value;
 948         } map[] = {
 949                 { "auth", LOG_AUTH },
 950                 { "cron", LOG_CRON },
 951                 { "daemon", LOG_DAEMON },
 952                 { "ftp", LOG_FTP },
 953                 { "kern", LOG_KERN },
 954                 { "lpr", LOG_LPR },
 955                 { "mail", LOG_MAIL },
 956                 { "news", LOG_NEWS },
 957                 { "syslog", LOG_SYSLOG },
 958                 { "user", LOG_USER },
 959                 { "uucp", LOG_UUCP },
 960                 { "local0", LOG_LOCAL0 },
 961                 { "local1", LOG_LOCAL1 },
 962                 { "local2", LOG_LOCAL2 },
 963                 { "local3", LOG_LOCAL3 },
 964                 { "local4", LOG_LOCAL4 },
 965                 { "local5", LOG_LOCAL5 },
 966                 { "local6", LOG_LOCAL6 },
 967                 { "local7", LOG_LOCAL7 },
 968                 { NULL, 0 }
 969         };
 970
 971         for (i = 0; map[i].name; i++) {
 972                 if (!strcmp(facility, map[i].name)) {
 973                         conf->syslog_facility = map[i].value;
 974                         return 0;
 975                 }
 976         }
 977         return -1;
 978 }
 979 #endif
 980
 981 static int
 982 eal_parse_log_priority(const char *level)
 983 {
 984         static const char * const levels[] = {
 985                 [RTE_LOG_EMERG]   = "emergency",
 986                 [RTE_LOG_ALERT]   = "alert",
 987                 [RTE_LOG_CRIT]    = "critical",
 988                 [RTE_LOG_ERR]     = "error",
 989                 [RTE_LOG_WARNING] = "warning",
 990                 [RTE_LOG_NOTICE]  = "notice",
 991                 [RTE_LOG_INFO]    = "info",
 992                 [RTE_LOG_DEBUG]   = "debug",
 993         };
 994         size_t len = strlen(level);
 995         unsigned long tmp;
 996         char *end;
 997         unsigned int i;
 998
 999         if (len == 0)
1000                 return -1;
1001
1002         /* look for named values, skip 0 which is not a valid level */
1003         for (i = 1; i < RTE_DIM(levels); i++) {
1004                 if (strncmp(levels[i], level, len) == 0)
1005                         return i;
1006         }
1007
1008         /* not a string, maybe it is numeric */
1009         errno = 0;
1010         tmp = strtoul(level, &end, 0);
1011
1012         /* check for errors */
1013         if (errno != 0 || end == NULL || *end != '\0' ||
1014             tmp >= UINT32_MAX)
1015                 return -1;
1016
1017         return tmp;
1018 }
1019
1020 static int
1021 eal_parse_log_level(const char *arg)
1022 {
1023         const char *pattern = NULL;
1024         const char *regex = NULL;
1025         char *str, *level;
1026         int priority;
1027
1028         str = strdup(arg);
1029         if (str == NULL)
1030                 return -1;
1031
1032         if ((level = strchr(str, ','))) {
1033                 regex = str;
1034                 *level++ = '\0';
1035         } else if ((level = strchr(str, ':'))) {
1036                 pattern = str;
1037                 *level++ = '\0';
1038         } else {
1039                 level = str;
1040         }
1041
1042         priority = eal_parse_log_priority(level);
1043         if (priority < 0) {
1044                 fprintf(stderr, "invalid log priority: %s\n", level);
1045                 goto fail;
1046         }
1047
1048         if (regex) {
1049                 if (rte_log_set_level_regexp(regex, priority) < 0) {
1050                         fprintf(stderr, "cannot set log level %s,%d\n",
1051                                 regex, priority);
1052                         goto fail;
1053                 }
1054                 if (rte_log_save_regexp(regex, priority) < 0)
1055                         goto fail;
1056         } else if (pattern) {
1057                 if (rte_log_set_level_pattern(pattern, priority) < 0) {
1058                         fprintf(stderr, "cannot set log level %s:%d\n",
1059                                 pattern, priority);
1060                         goto fail;
1061                 }
1062                 if (rte_log_save_pattern(pattern, priority) < 0)
1063                         goto fail;
1064         } else {
1065                 rte_log_set_global_level(priority);
1066         }
1067
1068         free(str);
1069         return 0;
1070
1071 fail:
1072         free(str);
1073         return -1;
1074 }
1075
1076 static enum rte_proc_type_t
1077 eal_parse_proc_type(const char *arg)
1078 {
1079         if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
1080                 return RTE_PROC_PRIMARY;
1081         if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
1082                 return RTE_PROC_SECONDARY;
1083         if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
1084                 return RTE_PROC_AUTO;
1085
1086         return RTE_PROC_INVALID;
1087 }
1088
1089 static int
1090 eal_parse_iova_mode(const char *name)
1091 {
1092         int mode;
1093
1094         if (name == NULL)
1095                 return -1;
1096
1097         if (!strcmp("pa", name))
1098                 mode = RTE_IOVA_PA;
1099         else if (!strcmp("va", name))
1100                 mode = RTE_IOVA_VA;
1101         else
1102                 return -1;
1103
1104         internal_config.iova_mode = mode;
1105         return 0;
1106 }
1107
1108 static int
1109 eal_parse_base_virtaddr(const char *arg)
1110 {
1111         char *end;
1112         uint64_t addr;
1113
1114         errno = 0;
1115         addr = strtoull(arg, &end, 16);
1116
1117         /* check for errors */
1118         if ((errno != 0) || (arg[0] == '\0') || end == NULL || (*end != '\0'))
1119                 return -1;
1120
1121         /* make sure we don't exceed 32-bit boundary on 32-bit target */
1122 #ifndef RTE_ARCH_64
1123         if (addr >= UINTPTR_MAX)
1124                 return -1;
1125 #endif
1126
1127         /* align the addr on 16M boundary, 16MB is the minimum huge page
1128          * size on IBM Power architecture. If the addr is aligned to 16MB,
1129          * it can align to 2MB for x86. So this alignment can also be used
1130          * on x86 and other architectures.
1131          */
1132         internal_config.base_virtaddr =
1133                 RTE_PTR_ALIGN_CEIL((uintptr_t)addr, (size_t)RTE_PGSIZE_16M);
1134
1135         return 0;
1136 }
1137
1138 /* caller is responsible for freeing the returned string */
1139 static char *
1140 available_cores(void)
1141 {
1142         char *str = NULL;
1143         int previous;
1144         int sequence;
1145         char *tmp;
1146         int idx;
1147
1148         /* find the first available cpu */
1149         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
1150                 if (eal_cpu_detected(idx) == 0)
1151                         continue;
1152                 break;
1153         }
1154         if (idx >= RTE_MAX_LCORE)
1155                 return NULL;
1156
1157         /* first sequence */
1158         if (asprintf(&str, "%d", idx) < 0)
1159                 return NULL;
1160         previous = idx;
1161         sequence = 0;
1162
1163         for (idx++ ; idx < RTE_MAX_LCORE; idx++) {
1164                 if (eal_cpu_detected(idx) == 0)
1165                         continue;
1166
1167                 if (idx == previous + 1) {
1168                         previous = idx;
1169                         sequence = 1;
1170                         continue;
1171                 }
1172
1173                 /* finish current sequence */
1174                 if (sequence) {
1175                         if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
1176                                 free(str);
1177                                 return NULL;
1178                         }
1179                         free(str);
1180                         str = tmp;
1181                 }
1182
1183                 /* new sequence */
1184                 if (asprintf(&tmp, "%s,%d", str, idx) < 0) {
1185                         free(str);
1186                         return NULL;
1187                 }
1188                 free(str);
1189                 str = tmp;
1190                 previous = idx;
1191                 sequence = 0;
1192         }
1193
1194         /* finish last sequence */
1195         if (sequence) {
1196                 if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
1197                         free(str);
1198                         return NULL;
1199                 }
1200                 free(str);
1201                 str = tmp;
1202         }
1203
1204         return str;
1205 }
1206
1207 int
1208 eal_parse_common_option(int opt, const char *optarg,
1209                         struct internal_config *conf)
1210 {
1211         static int b_used;
1212         static int w_used;
1213
1214         switch (opt) {
1215         /* blacklist */
1216         case 'b':
1217                 if (w_used)
1218                         goto bw_used;
1219                 if (eal_option_device_add(RTE_DEVTYPE_BLACKLISTED_PCI,
1220                                 optarg) < 0) {
1221                         return -1;
1222                 }
1223                 b_used = 1;
1224                 break;
1225         /* whitelist */
1226         case 'w':
1227                 if (b_used)
1228                         goto bw_used;
1229                 if (eal_option_device_add(RTE_DEVTYPE_WHITELISTED_PCI,
1230                                 optarg) < 0) {
1231                         return -1;
1232                 }
1233                 w_used = 1;
1234                 break;
1235         /* coremask */
1236         case 'c': {
1237                 int lcore_indexes[RTE_MAX_LCORE];
1238
1239                 if (eal_service_cores_parsed())
1240                         RTE_LOG(WARNING, EAL,
1241                                 "Service cores parsed before dataplane cores. Please ensure -c is before -s or -S\n");
1242                 if (eal_parse_coremask(optarg, lcore_indexes) < 0) {
1243                         RTE_LOG(ERR, EAL, "invalid coremask syntax\n");
1244                         return -1;
1245                 }
1246                 if (update_lcore_config(lcore_indexes) < 0) {
1247                         char *available = available_cores();
1248
1249                         RTE_LOG(ERR, EAL,
1250                                 "invalid coremask, please check specified cores are part of %s\n",
1251                                 available);
1252                         free(available);
1253                         return -1;
1254                 }
1255
1256                 if (core_parsed) {
1257                         RTE_LOG(ERR, EAL, "Option -c is ignored, because (%s) is set!\n",
1258                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1259                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1260                                 "-c");
1261                         return -1;
1262                 }
1263
1264                 core_parsed = LCORE_OPT_MSK;
1265                 break;
1266         }
1267         /* corelist */
1268         case 'l': {
1269                 int lcore_indexes[RTE_MAX_LCORE];
1270
1271                 if (eal_service_cores_parsed())
1272                         RTE_LOG(WARNING, EAL,
1273                                 "Service cores parsed before dataplane cores. Please ensure -l is before -s or -S\n");
1274
1275                 if (eal_parse_corelist(optarg, lcore_indexes) < 0) {
1276                         RTE_LOG(ERR, EAL, "invalid core list syntax\n");
1277                         return -1;
1278                 }
1279                 if (update_lcore_config(lcore_indexes) < 0) {
1280                         char *available = available_cores();
1281
1282                         RTE_LOG(ERR, EAL,
1283                                 "invalid core list, please check specified cores are part of %s\n",
1284                                 available);
1285                         free(available);
1286                         return -1;
1287                 }
1288
1289                 if (core_parsed) {
1290                         RTE_LOG(ERR, EAL, "Option -l is ignored, because (%s) is set!\n",
1291                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1292                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1293                                 "-l");
1294                         return -1;
1295                 }
1296
1297                 core_parsed = LCORE_OPT_LST;
1298                 break;
1299         }
1300         /* service coremask */
1301         case 's':
1302                 if (eal_parse_service_coremask(optarg) < 0) {
1303                         RTE_LOG(ERR, EAL, "invalid service coremask\n");
1304                         return -1;
1305                 }
1306                 break;
1307         /* service corelist */
1308         case 'S':
1309                 if (eal_parse_service_corelist(optarg) < 0) {
1310                         RTE_LOG(ERR, EAL, "invalid service core list\n");
1311                         return -1;
1312                 }
1313                 break;
1314         /* size of memory */
1315         case 'm':
1316                 conf->memory = atoi(optarg);
1317                 conf->memory *= 1024ULL;
1318                 conf->memory *= 1024ULL;
1319                 mem_parsed = 1;
1320                 break;
1321         /* force number of channels */
1322         case 'n':
1323                 conf->force_nchannel = atoi(optarg);
1324                 if (conf->force_nchannel == 0) {
1325                         RTE_LOG(ERR, EAL, "invalid channel number\n");
1326                         return -1;
1327                 }
1328                 break;
1329         /* force number of ranks */
1330         case 'r':
1331                 conf->force_nrank = atoi(optarg);
1332                 if (conf->force_nrank == 0 ||
1333                     conf->force_nrank > 16) {
1334                         RTE_LOG(ERR, EAL, "invalid rank number\n");
1335                         return -1;
1336                 }
1337                 break;
1338         /* force loading of external driver */
1339         case 'd':
1340                 if (eal_plugin_add(optarg) == -1)
1341                         return -1;
1342                 break;
1343         case 'v':
1344                 /* since message is explicitly requested by user, we
1345                  * write message at highest log level so it can always
1346                  * be seen
1347                  * even if info or warning messages are disabled */
1348                 RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
1349                 break;
1350
1351         /* long options */
1352         case OPT_HUGE_UNLINK_NUM:
1353                 conf->hugepage_unlink = 1;
1354                 break;
1355
1356         case OPT_NO_HUGE_NUM:
1357                 conf->no_hugetlbfs = 1;
1358                 /* no-huge is legacy mem */
1359                 conf->legacy_mem = 1;
1360                 break;
1361
1362         case OPT_NO_PCI_NUM:
1363                 conf->no_pci = 1;
1364                 break;
1365
1366         case OPT_NO_HPET_NUM:
1367                 conf->no_hpet = 1;
1368                 break;
1369
1370         case OPT_VMWARE_TSC_MAP_NUM:
1371                 conf->vmware_tsc_map = 1;
1372                 break;
1373
1374         case OPT_NO_SHCONF_NUM:
1375                 conf->no_shconf = 1;
1376                 break;
1377
1378         case OPT_IN_MEMORY_NUM:
1379                 conf->in_memory = 1;
1380                 /* in-memory is a superset of noshconf and huge-unlink */
1381                 conf->no_shconf = 1;
1382                 conf->hugepage_unlink = 1;
1383                 break;
1384
1385         case OPT_PROC_TYPE_NUM:
1386                 conf->process_type = eal_parse_proc_type(optarg);
1387                 break;
1388
1389         case OPT_MASTER_LCORE_NUM:
1390                 if (eal_parse_master_lcore(optarg) < 0) {
1391                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1392                                         OPT_MASTER_LCORE "\n");
1393                         return -1;
1394                 }
1395                 break;
1396
1397         case OPT_VDEV_NUM:
1398                 if (eal_option_device_add(RTE_DEVTYPE_VIRTUAL,
1399                                 optarg) < 0) {
1400                         return -1;
1401                 }
1402                 break;
1403
1404 #ifndef RTE_EXEC_ENV_WINDOWS
1405         case OPT_SYSLOG_NUM:
1406                 if (eal_parse_syslog(optarg, conf) < 0) {
1407                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1408                                         OPT_SYSLOG "\n");
1409                         return -1;
1410                 }
1411                 break;
1412 #endif
1413
1414         case OPT_LOG_LEVEL_NUM: {
1415                 if (eal_parse_log_level(optarg) < 0) {
1416                         RTE_LOG(ERR, EAL,
1417                                 "invalid parameters for --"
1418                                 OPT_LOG_LEVEL "\n");
1419                         return -1;
1420                 }
1421                 break;
1422         }
1423
1424         case OPT_TRACE_NUM: {
1425                 if (eal_trace_args_save(optarg) < 0) {
1426                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1427                                 OPT_TRACE "\n");
1428                         return -1;
1429                 }
1430                 break;
1431         }
1432
1433         case OPT_LCORES_NUM:
1434                 if (eal_parse_lcores(optarg) < 0) {
1435                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1436                                 OPT_LCORES "\n");
1437                         return -1;
1438                 }
1439
1440                 if (core_parsed) {
1441                         RTE_LOG(ERR, EAL, "Option --lcore is ignored, because (%s) is set!\n",
1442                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1443                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1444                                 "--lcore");
1445                         return -1;
1446                 }
1447
1448                 core_parsed = LCORE_OPT_MAP;
1449                 break;
1450         case OPT_LEGACY_MEM_NUM:
1451                 conf->legacy_mem = 1;
1452                 break;
1453         case OPT_SINGLE_FILE_SEGMENTS_NUM:
1454                 conf->single_file_segments = 1;
1455                 break;
1456         case OPT_IOVA_MODE_NUM:
1457                 if (eal_parse_iova_mode(optarg) < 0) {
1458                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1459                                 OPT_IOVA_MODE "\n");
1460                         return -1;
1461                 }
1462                 break;
1463         case OPT_BASE_VIRTADDR_NUM:
1464                 if (eal_parse_base_virtaddr(optarg) < 0) {
1465                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1466                                         OPT_BASE_VIRTADDR "\n");
1467                         return -1;
1468                 }
1469                 break;
1470
1471         /* don't know what to do, leave this to caller */
1472         default:
1473                 return 1;
1474
1475         }
1476
1477         return 0;
1478 bw_used:
1479         RTE_LOG(ERR, EAL, "Options blacklist (-b) and whitelist (-w) "
1480                 "cannot be used at the same time\n");
1481         return -1;
1482 }
1483
1484 static void
1485 eal_auto_detect_cores(struct rte_config *cfg)
1486 {
1487         unsigned int lcore_id;
1488         unsigned int removed = 0;
1489         rte_cpuset_t affinity_set;
1490
1491         if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1492                                 &affinity_set))
1493                 CPU_ZERO(&affinity_set);
1494
1495         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1496                 if (cfg->lcore_role[lcore_id] == ROLE_RTE &&
1497                     !CPU_ISSET(lcore_id, &affinity_set)) {
1498                         cfg->lcore_role[lcore_id] = ROLE_OFF;
1499                         removed++;
1500                 }
1501         }
1502
1503         cfg->lcore_count -= removed;
1504 }
1505
1506 static void
1507 compute_ctrl_threads_cpuset(struct internal_config *internal_cfg)
1508 {
1509         rte_cpuset_t *cpuset = &internal_cfg->ctrl_cpuset;
1510         rte_cpuset_t default_set;
1511         unsigned int lcore_id;
1512
1513         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1514                 if (rte_lcore_has_role(lcore_id, ROLE_OFF))
1515                         continue;
1516                 RTE_CPU_OR(cpuset, cpuset, &lcore_config[lcore_id].cpuset);
1517         }
1518         RTE_CPU_NOT(cpuset, cpuset);
1519
1520         if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1521                                 &default_set))
1522                 CPU_ZERO(&default_set);
1523
1524         RTE_CPU_AND(cpuset, cpuset, &default_set);
1525
1526         /* if no remaining cpu, use master lcore cpu affinity */
1527         if (!CPU_COUNT(cpuset)) {
1528                 memcpy(cpuset, &lcore_config[rte_get_master_lcore()].cpuset,
1529                         sizeof(*cpuset));
1530         }
1531 }
1532
1533 int
1534 eal_cleanup_config(struct internal_config *internal_cfg)
1535 {
1536         if (internal_cfg->hugefile_prefix != NULL)
1537                 free(internal_cfg->hugefile_prefix);
1538         if (internal_cfg->hugepage_dir != NULL)
1539                 free(internal_cfg->hugepage_dir);
1540         if (internal_cfg->user_mbuf_pool_ops_name != NULL)
1541                 free(internal_cfg->user_mbuf_pool_ops_name);
1542
1543         return 0;
1544 }
1545
1546 int
1547 eal_adjust_config(struct internal_config *internal_cfg)
1548 {
1549         int i;
1550         struct rte_config *cfg = rte_eal_get_configuration();
1551
1552         if (!core_parsed)
1553                 eal_auto_detect_cores(cfg);
1554
1555         if (internal_config.process_type == RTE_PROC_AUTO)
1556                 internal_config.process_type = eal_proc_type_detect();
1557
1558         /* default master lcore is the first one */
1559         if (!master_lcore_parsed) {
1560                 cfg->master_lcore = rte_get_next_lcore(-1, 0, 0);
1561                 if (cfg->master_lcore >= RTE_MAX_LCORE)
1562                         return -1;
1563                 lcore_config[cfg->master_lcore].core_role = ROLE_RTE;
1564         }
1565
1566         compute_ctrl_threads_cpuset(internal_cfg);
1567
1568         /* if no memory amounts were requested, this will result in 0 and
1569          * will be overridden later, right after eal_hugepage_info_init() */
1570         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
1571                 internal_cfg->memory += internal_cfg->socket_mem[i];
1572
1573         return 0;
1574 }
1575
1576 int
1577 eal_check_common_options(struct internal_config *internal_cfg)
1578 {
1579         struct rte_config *cfg = rte_eal_get_configuration();
1580
1581         if (cfg->lcore_role[cfg->master_lcore] != ROLE_RTE) {
1582                 RTE_LOG(ERR, EAL, "Master lcore is not enabled for DPDK\n");
1583                 return -1;
1584         }
1585
1586         if (internal_cfg->process_type == RTE_PROC_INVALID) {
1587                 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
1588                 return -1;
1589         }
1590         if (internal_cfg->hugefile_prefix != NULL &&
1591                         strlen(internal_cfg->hugefile_prefix) < 1) {
1592                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_FILE_PREFIX " option\n");
1593                 return -1;
1594         }
1595         if (internal_cfg->hugepage_dir != NULL &&
1596                         strlen(internal_cfg->hugepage_dir) < 1) {
1597                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_HUGE_DIR" option\n");
1598                 return -1;
1599         }
1600         if (internal_cfg->user_mbuf_pool_ops_name != NULL &&
1601                         strlen(internal_cfg->user_mbuf_pool_ops_name) < 1) {
1602                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_MBUF_POOL_OPS_NAME" option\n");
1603                 return -1;
1604         }
1605         if (index(eal_get_hugefile_prefix(), '%') != NULL) {
1606                 RTE_LOG(ERR, EAL, "Invalid char, '%%', in --"OPT_FILE_PREFIX" "
1607                         "option\n");
1608                 return -1;
1609         }
1610         if (mem_parsed && internal_cfg->force_sockets == 1) {
1611                 RTE_LOG(ERR, EAL, "Options -m and --"OPT_SOCKET_MEM" cannot "
1612                         "be specified at the same time\n");
1613                 return -1;
1614         }
1615         if (internal_cfg->no_hugetlbfs && internal_cfg->force_sockets == 1) {
1616                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_MEM" cannot "
1617                         "be specified together with --"OPT_NO_HUGE"\n");
1618                 return -1;
1619         }
1620         if (internal_cfg->no_hugetlbfs && internal_cfg->hugepage_unlink &&
1621                         !internal_cfg->in_memory) {
1622                 RTE_LOG(ERR, EAL, "Option --"OPT_HUGE_UNLINK" cannot "
1623                         "be specified together with --"OPT_NO_HUGE"\n");
1624                 return -1;
1625         }
1626         if (internal_config.force_socket_limits && internal_config.legacy_mem) {
1627                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_LIMIT
1628                         " is only supported in non-legacy memory mode\n");
1629         }
1630         if (internal_cfg->single_file_segments &&
1631                         internal_cfg->hugepage_unlink &&
1632                         !internal_cfg->in_memory) {
1633                 RTE_LOG(ERR, EAL, "Option --"OPT_SINGLE_FILE_SEGMENTS" is "
1634                         "not compatible with --"OPT_HUGE_UNLINK"\n");
1635                 return -1;
1636         }
1637         if (internal_cfg->legacy_mem &&
1638                         internal_cfg->in_memory) {
1639                 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
1640                                 "with --"OPT_IN_MEMORY"\n");
1641                 return -1;
1642         }
1643         if (internal_cfg->legacy_mem && internal_cfg->match_allocations) {
1644                 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
1645                                 "with --"OPT_MATCH_ALLOCATIONS"\n");
1646                 return -1;
1647         }
1648         if (internal_cfg->no_hugetlbfs && internal_cfg->match_allocations) {
1649                 RTE_LOG(ERR, EAL, "Option --"OPT_NO_HUGE" is not compatible "
1650                                 "with --"OPT_MATCH_ALLOCATIONS"\n");
1651                 return -1;
1652         }
1653         if (internal_cfg->legacy_mem && internal_cfg->memory == 0) {
1654                 RTE_LOG(NOTICE, EAL, "Static memory layout is selected, "
1655                         "amount of reserved memory can be adjusted with "
1656                         "-m or --"OPT_SOCKET_MEM"\n");
1657         }
1658
1659         return 0;
1660 }
1661
1662 void
1663 eal_common_usage(void)
1664 {
1665         printf("[options]\n\n"
1666                "EAL common options:\n"
1667                "  -c COREMASK         Hexadecimal bitmask of cores to run on\n"
1668                "  -l CORELIST         List of cores to run on\n"
1669                "                      The argument format is <c1>[-c2][,c3[-c4],...]\n"
1670                "                      where c1, c2, etc are core indexes between 0 and %d\n"
1671                "  --"OPT_LCORES" COREMAP    Map lcore set to physical cpu set\n"
1672                "                      The argument format is\n"
1673                "                            '<lcores[@cpus]>[<,lcores[@cpus]>...]'\n"
1674                "                      lcores and cpus list are grouped by '(' and ')'\n"
1675                "                      Within the group, '-' is used for range separator,\n"
1676                "                      ',' is used for single number separator.\n"
1677                "                      '( )' can be omitted for single element group,\n"
1678                "                      '@' can be omitted if cpus and lcores have the same value\n"
1679                "  -s SERVICE COREMASK Hexadecimal bitmask of cores to be used as service cores\n"
1680                "  --"OPT_MASTER_LCORE" ID   Core ID that is used as master\n"
1681                "  --"OPT_MBUF_POOL_OPS_NAME" Pool ops name for mbuf to use\n"
1682                "  -n CHANNELS         Number of memory channels\n"
1683                "  -m MB               Memory to allocate (see also --"OPT_SOCKET_MEM")\n"
1684                "  -r RANKS            Force number of memory ranks (don't detect)\n"
1685                "  -b, --"OPT_PCI_BLACKLIST" Add a PCI device in black list.\n"
1686                "                      Prevent EAL from using this PCI device. The argument\n"
1687                "                      format is <domain:bus:devid.func>.\n"
1688                "  -w, --"OPT_PCI_WHITELIST" Add a PCI device in white list.\n"
1689                "                      Only use the specified PCI devices. The argument format\n"
1690                "                      is <[domain:]bus:devid.func>. This option can be present\n"
1691                "                      several times (once per device).\n"
1692                "                      [NOTE: PCI whitelist cannot be used with -b option]\n"
1693                "  --"OPT_VDEV"              Add a virtual device.\n"
1694                "                      The argument format is <driver><id>[,key=val,...]\n"
1695                "                      (ex: --vdev=net_pcap0,iface=eth2).\n"
1696                "  --"OPT_IOVA_MODE"   Set IOVA mode. 'pa' for IOVA_PA\n"
1697                "                      'va' for IOVA_VA\n"
1698                "  -d LIB.so|DIR       Add a driver or driver directory\n"
1699                "                      (can be used multiple times)\n"
1700                "  --"OPT_VMWARE_TSC_MAP"    Use VMware TSC map instead of native RDTSC\n"
1701                "  --"OPT_PROC_TYPE"         Type of this process (primary|secondary|auto)\n"
1702 #ifndef RTE_EXEC_ENV_WINDOWS
1703                "  --"OPT_SYSLOG"            Set syslog facility\n"
1704 #endif
1705                "  --"OPT_LOG_LEVEL"=<int>   Set global log level\n"
1706                "  --"OPT_LOG_LEVEL"=<type-match>:<int>\n"
1707                "                      Set specific log level\n"
1708                "  --"OPT_TRACE"=<regex-match>\n"
1709                "                      Enable trace based on regular expression trace name.\n"
1710                "                      By default, the trace is disabled.\n"
1711                "                      User must specify this option to enable trace.\n"
1712                "  -v                  Display version information on startup\n"
1713                "  -h, --help          This help\n"
1714                "  --"OPT_IN_MEMORY"   Operate entirely in memory. This will\n"
1715                "                      disable secondary process support\n"
1716                "  --"OPT_BASE_VIRTADDR"     Base virtual address\n"
1717                "\nEAL options for DEBUG use only:\n"
1718                "  --"OPT_HUGE_UNLINK"       Unlink hugepage files after init\n"
1719                "  --"OPT_NO_HUGE"           Use malloc instead of hugetlbfs\n"
1720                "  --"OPT_NO_PCI"            Disable PCI\n"
1721                "  --"OPT_NO_HPET"           Disable HPET\n"
1722                "  --"OPT_NO_SHCONF"         No shared config (mmap'd files)\n"
1723                "\n", RTE_MAX_LCORE);
1724         rte_option_usage();
1725 }