lib/librte_eal/common/eal_common_options.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2014 Intel Corporation.
   3  * Copyright(c) 2014 6WIND S.A.
   4  */
   5
   6 #include <stdlib.h>
   7 #include <unistd.h>
   8 #include <string.h>
   9 #include <syslog.h>
  10 #include <ctype.h>
  11 #include <limits.h>
  12 #include <errno.h>
  13 #include <getopt.h>
  14 #include <dlfcn.h>
  15 #include <sys/types.h>
  16 #include <sys/stat.h>
  17 #include <dirent.h>
  18
  19 #include <rte_string_fns.h>
  20 #include <rte_eal.h>
  21 #include <rte_log.h>
  22 #include <rte_lcore.h>
  23 #include <rte_tailq.h>
  24 #include <rte_version.h>
  25 #include <rte_devargs.h>
  26 #include <rte_memcpy.h>
  27
  28 #include "eal_internal_cfg.h"
  29 #include "eal_options.h"
  30 #include "eal_filesystem.h"
  31 #include "eal_private.h"
  32
  33 #define BITS_PER_HEX 4
  34 #define LCORE_OPT_LST 1
  35 #define LCORE_OPT_MSK 2
  36 #define LCORE_OPT_MAP 3
  37
  38 const char
  39 eal_short_options[] =
  40         "b:" /* pci-blacklist */
  41         "c:" /* coremask */
  42         "s:" /* service coremask */
  43         "d:" /* driver */
  44         "h"  /* help */
  45         "l:" /* corelist */
  46         "S:" /* service corelist */
  47         "m:" /* memory size */
  48         "n:" /* memory channels */
  49         "r:" /* memory ranks */
  50         "v"  /* version */
  51         "w:" /* pci-whitelist */
  52         ;
  53
  54 const struct option
  55 eal_long_options[] = {
  56         {OPT_BASE_VIRTADDR,     1, NULL, OPT_BASE_VIRTADDR_NUM    },
  57         {OPT_CREATE_UIO_DEV,    0, NULL, OPT_CREATE_UIO_DEV_NUM   },
  58         {OPT_FILE_PREFIX,       1, NULL, OPT_FILE_PREFIX_NUM      },
  59         {OPT_HELP,              0, NULL, OPT_HELP_NUM             },
  60         {OPT_HUGE_DIR,          1, NULL, OPT_HUGE_DIR_NUM         },
  61         {OPT_HUGE_UNLINK,       0, NULL, OPT_HUGE_UNLINK_NUM      },
  62         {OPT_IOVA_MODE,         1, NULL, OPT_IOVA_MODE_NUM        },
  63         {OPT_LCORES,            1, NULL, OPT_LCORES_NUM           },
  64         {OPT_LOG_LEVEL,         1, NULL, OPT_LOG_LEVEL_NUM        },
  65         {OPT_MASTER_LCORE,      1, NULL, OPT_MASTER_LCORE_NUM     },
  66         {OPT_MBUF_POOL_OPS_NAME, 1, NULL, OPT_MBUF_POOL_OPS_NAME_NUM},
  67         {OPT_NO_HPET,           0, NULL, OPT_NO_HPET_NUM          },
  68         {OPT_NO_HUGE,           0, NULL, OPT_NO_HUGE_NUM          },
  69         {OPT_NO_PCI,            0, NULL, OPT_NO_PCI_NUM           },
  70         {OPT_NO_SHCONF,         0, NULL, OPT_NO_SHCONF_NUM        },
  71         {OPT_IN_MEMORY,         0, NULL, OPT_IN_MEMORY_NUM        },
  72         {OPT_PCI_BLACKLIST,     1, NULL, OPT_PCI_BLACKLIST_NUM    },
  73         {OPT_PCI_WHITELIST,     1, NULL, OPT_PCI_WHITELIST_NUM    },
  74         {OPT_PROC_TYPE,         1, NULL, OPT_PROC_TYPE_NUM        },
  75         {OPT_SOCKET_MEM,        1, NULL, OPT_SOCKET_MEM_NUM       },
  76         {OPT_SOCKET_LIMIT,      1, NULL, OPT_SOCKET_LIMIT_NUM     },
  77         {OPT_SYSLOG,            1, NULL, OPT_SYSLOG_NUM           },
  78         {OPT_VDEV,              1, NULL, OPT_VDEV_NUM             },
  79         {OPT_VFIO_INTR,         1, NULL, OPT_VFIO_INTR_NUM        },
  80         {OPT_VMWARE_TSC_MAP,    0, NULL, OPT_VMWARE_TSC_MAP_NUM   },
  81         {OPT_LEGACY_MEM,        0, NULL, OPT_LEGACY_MEM_NUM       },
  82         {OPT_SINGLE_FILE_SEGMENTS, 0, NULL, OPT_SINGLE_FILE_SEGMENTS_NUM},
  83         {OPT_MATCH_ALLOCATIONS, 0, NULL, OPT_MATCH_ALLOCATIONS_NUM},
  84         {0,                     0, NULL, 0                        }
  85 };
  86
  87 TAILQ_HEAD(shared_driver_list, shared_driver);
  88
  89 /* Definition for shared object drivers. */
  90 struct shared_driver {
  91         TAILQ_ENTRY(shared_driver) next;
  92
  93         char    name[PATH_MAX];
  94         void*   lib_handle;
  95 };
  96
  97 /* List of external loadable drivers */
  98 static struct shared_driver_list solib_list =
  99 TAILQ_HEAD_INITIALIZER(solib_list);
 100
 101 /* Default path of external loadable drivers */
 102 static const char *default_solib_dir = RTE_EAL_PMD_PATH;
 103
 104 /*
 105  * Stringified version of solib path used by dpdk-pmdinfo.py
 106  * Note: PLEASE DO NOT ALTER THIS without making a corresponding
 107  * change to usertools/dpdk-pmdinfo.py
 108  */
 109 static const char dpdk_solib_path[] __attribute__((used)) =
 110 "DPDK_PLUGIN_PATH=" RTE_EAL_PMD_PATH;
 111
 112 TAILQ_HEAD(device_option_list, device_option);
 113
 114 struct device_option {
 115         TAILQ_ENTRY(device_option) next;
 116
 117         enum rte_devtype type;
 118         char arg[];
 119 };
 120
 121 static struct device_option_list devopt_list =
 122 TAILQ_HEAD_INITIALIZER(devopt_list);
 123
 124 static int master_lcore_parsed;
 125 static int mem_parsed;
 126 static int core_parsed;
 127
 128 static int
 129 eal_option_device_add(enum rte_devtype type, const char *optarg)
 130 {
 131         struct device_option *devopt;
 132         size_t optlen;
 133         int ret;
 134
 135         optlen = strlen(optarg) + 1;
 136         devopt = calloc(1, sizeof(*devopt) + optlen);
 137         if (devopt == NULL) {
 138                 RTE_LOG(ERR, EAL, "Unable to allocate device option\n");
 139                 return -ENOMEM;
 140         }
 141
 142         devopt->type = type;
 143         ret = strlcpy(devopt->arg, optarg, optlen);
 144         if (ret < 0) {
 145                 RTE_LOG(ERR, EAL, "Unable to copy device option\n");
 146                 free(devopt);
 147                 return -EINVAL;
 148         }
 149         TAILQ_INSERT_TAIL(&devopt_list, devopt, next);
 150         return 0;
 151 }
 152
 153 int
 154 eal_option_device_parse(void)
 155 {
 156         struct device_option *devopt;
 157         void *tmp;
 158         int ret = 0;
 159
 160         TAILQ_FOREACH_SAFE(devopt, &devopt_list, next, tmp) {
 161                 if (ret == 0) {
 162                         ret = rte_devargs_add(devopt->type, devopt->arg);
 163                         if (ret)
 164                                 RTE_LOG(ERR, EAL, "Unable to parse device '%s'\n",
 165                                         devopt->arg);
 166                 }
 167                 TAILQ_REMOVE(&devopt_list, devopt, next);
 168                 free(devopt);
 169         }
 170         return ret;
 171 }
 172
 173 const char *
 174 eal_get_hugefile_prefix(void)
 175 {
 176         if (internal_config.hugefile_prefix != NULL)
 177                 return internal_config.hugefile_prefix;
 178         return HUGEFILE_PREFIX_DEFAULT;
 179 }
 180
 181 void
 182 eal_reset_internal_config(struct internal_config *internal_cfg)
 183 {
 184         int i;
 185
 186         internal_cfg->memory = 0;
 187         internal_cfg->force_nrank = 0;
 188         internal_cfg->force_nchannel = 0;
 189         internal_cfg->hugefile_prefix = NULL;
 190         internal_cfg->hugepage_dir = NULL;
 191         internal_cfg->force_sockets = 0;
 192         /* zero out the NUMA config */
 193         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 194                 internal_cfg->socket_mem[i] = 0;
 195         internal_cfg->force_socket_limits = 0;
 196         /* zero out the NUMA limits config */
 197         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 198                 internal_cfg->socket_limit[i] = 0;
 199         /* zero out hugedir descriptors */
 200         for (i = 0; i < MAX_HUGEPAGE_SIZES; i++) {
 201                 memset(&internal_cfg->hugepage_info[i], 0,
 202                                 sizeof(internal_cfg->hugepage_info[0]));
 203                 internal_cfg->hugepage_info[i].lock_descriptor = -1;
 204         }
 205         internal_cfg->base_virtaddr = 0;
 206
 207         internal_cfg->syslog_facility = LOG_DAEMON;
 208
 209         /* if set to NONE, interrupt mode is determined automatically */
 210         internal_cfg->vfio_intr_mode = RTE_INTR_MODE_NONE;
 211
 212 #ifdef RTE_LIBEAL_USE_HPET
 213         internal_cfg->no_hpet = 0;
 214 #else
 215         internal_cfg->no_hpet = 1;
 216 #endif
 217         internal_cfg->vmware_tsc_map = 0;
 218         internal_cfg->create_uio_dev = 0;
 219         internal_cfg->iova_mode = RTE_IOVA_DC;
 220         internal_cfg->user_mbuf_pool_ops_name = NULL;
 221         CPU_ZERO(&internal_cfg->ctrl_cpuset);
 222         internal_cfg->init_complete = 0;
 223 }
 224
 225 static int
 226 eal_plugin_add(const char *path)
 227 {
 228         struct shared_driver *solib;
 229
 230         solib = malloc(sizeof(*solib));
 231         if (solib == NULL) {
 232                 RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
 233                 return -1;
 234         }
 235         memset(solib, 0, sizeof(*solib));
 236         strlcpy(solib->name, path, PATH_MAX-1);
 237         solib->name[PATH_MAX-1] = 0;
 238         TAILQ_INSERT_TAIL(&solib_list, solib, next);
 239
 240         return 0;
 241 }
 242
 243 static int
 244 eal_plugindir_init(const char *path)
 245 {
 246         DIR *d = NULL;
 247         struct dirent *dent = NULL;
 248         char sopath[PATH_MAX];
 249
 250         if (path == NULL || *path == '\0')
 251                 return 0;
 252
 253         d = opendir(path);
 254         if (d == NULL) {
 255                 RTE_LOG(ERR, EAL, "failed to open directory %s: %s\n",
 256                         path, strerror(errno));
 257                 return -1;
 258         }
 259
 260         while ((dent = readdir(d)) != NULL) {
 261                 struct stat sb;
 262
 263                 snprintf(sopath, sizeof(sopath), "%s/%s", path, dent->d_name);
 264
 265                 if (!(stat(sopath, &sb) == 0 && S_ISREG(sb.st_mode)))
 266                         continue;
 267
 268                 if (eal_plugin_add(sopath) == -1)
 269                         break;
 270         }
 271
 272         closedir(d);
 273         /* XXX this ignores failures from readdir() itself */
 274         return (dent == NULL) ? 0 : -1;
 275 }
 276
 277 int
 278 eal_plugins_init(void)
 279 {
 280         struct shared_driver *solib = NULL;
 281         struct stat sb;
 282
 283         if (*default_solib_dir != '\0' && stat(default_solib_dir, &sb) == 0 &&
 284                                 S_ISDIR(sb.st_mode))
 285                 eal_plugin_add(default_solib_dir);
 286
 287         TAILQ_FOREACH(solib, &solib_list, next) {
 288
 289                 if (stat(solib->name, &sb) == 0 && S_ISDIR(sb.st_mode)) {
 290                         if (eal_plugindir_init(solib->name) == -1) {
 291                                 RTE_LOG(ERR, EAL,
 292                                         "Cannot init plugin directory %s\n",
 293                                         solib->name);
 294                                 return -1;
 295                         }
 296                 } else {
 297                         RTE_LOG(DEBUG, EAL, "open shared lib %s\n",
 298                                 solib->name);
 299                         solib->lib_handle = dlopen(solib->name, RTLD_NOW);
 300                         if (solib->lib_handle == NULL) {
 301                                 RTE_LOG(ERR, EAL, "%s\n", dlerror());
 302                                 return -1;
 303                         }
 304                 }
 305
 306         }
 307         return 0;
 308 }
 309
 310 /*
 311  * Parse the coremask given as argument (hexadecimal string) and fill
 312  * the global configuration (core role and core count) with the parsed
 313  * value.
 314  */
 315 static int xdigit2val(unsigned char c)
 316 {
 317         int val;
 318
 319         if (isdigit(c))
 320                 val = c - '0';
 321         else if (isupper(c))
 322                 val = c - 'A' + 10;
 323         else
 324                 val = c - 'a' + 10;
 325         return val;
 326 }
 327
 328 static int
 329 eal_parse_service_coremask(const char *coremask)
 330 {
 331         struct rte_config *cfg = rte_eal_get_configuration();
 332         int i, j, idx = 0;
 333         unsigned int count = 0;
 334         char c;
 335         int val;
 336         uint32_t taken_lcore_count = 0;
 337
 338         if (coremask == NULL)
 339                 return -1;
 340         /* Remove all blank characters ahead and after .
 341          * Remove 0x/0X if exists.
 342          */
 343         while (isblank(*coremask))
 344                 coremask++;
 345         if (coremask[0] == '0' && ((coremask[1] == 'x')
 346                 || (coremask[1] == 'X')))
 347                 coremask += 2;
 348         i = strlen(coremask);
 349         while ((i > 0) && isblank(coremask[i - 1]))
 350                 i--;
 351
 352         if (i == 0)
 353                 return -1;
 354
 355         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 356                 c = coremask[i];
 357                 if (isxdigit(c) == 0) {
 358                         /* invalid characters */
 359                         return -1;
 360                 }
 361                 val = xdigit2val(c);
 362                 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE;
 363                                 j++, idx++) {
 364                         if ((1 << j) & val) {
 365                                 /* handle master lcore already parsed */
 366                                 uint32_t lcore = idx;
 367                                 if (master_lcore_parsed &&
 368                                                 cfg->master_lcore == lcore) {
 369                                         RTE_LOG(ERR, EAL,
 370                                                 "lcore %u is master lcore, cannot use as service core\n",
 371                                                 idx);
 372                                         return -1;
 373                                 }
 374
 375                                 if (!lcore_config[idx].detected) {
 376                                         RTE_LOG(ERR, EAL,
 377                                                 "lcore %u unavailable\n", idx);
 378                                         return -1;
 379                                 }
 380
 381                                 if (cfg->lcore_role[idx] == ROLE_RTE)
 382                                         taken_lcore_count++;
 383
 384                                 lcore_config[idx].core_role = ROLE_SERVICE;
 385                                 count++;
 386                         }
 387                 }
 388         }
 389
 390         for (; i >= 0; i--)
 391                 if (coremask[i] != '0')
 392                         return -1;
 393
 394         for (; idx < RTE_MAX_LCORE; idx++)
 395                 lcore_config[idx].core_index = -1;
 396
 397         if (count == 0)
 398                 return -1;
 399
 400         if (core_parsed && taken_lcore_count != count) {
 401                 RTE_LOG(WARNING, EAL,
 402                         "Not all service cores are in the coremask. "
 403                         "Please ensure -c or -l includes service cores\n");
 404         }
 405
 406         cfg->service_lcore_count = count;
 407         return 0;
 408 }
 409
 410 static int
 411 eal_service_cores_parsed(void)
 412 {
 413         int idx;
 414         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 415                 if (lcore_config[idx].core_role == ROLE_SERVICE)
 416                         return 1;
 417         }
 418         return 0;
 419 }
 420
 421 static int
 422 update_lcore_config(int *cores)
 423 {
 424         struct rte_config *cfg = rte_eal_get_configuration();
 425         unsigned int count = 0;
 426         unsigned int i;
 427         int ret = 0;
 428
 429         for (i = 0; i < RTE_MAX_LCORE; i++) {
 430                 if (cores[i] != -1) {
 431                         if (!lcore_config[i].detected) {
 432                                 RTE_LOG(ERR, EAL, "lcore %u unavailable\n", i);
 433                                 ret = -1;
 434                                 continue;
 435                         }
 436                         cfg->lcore_role[i] = ROLE_RTE;
 437                         count++;
 438                 } else {
 439                         cfg->lcore_role[i] = ROLE_OFF;
 440                 }
 441                 lcore_config[i].core_index = cores[i];
 442         }
 443         if (!ret)
 444                 cfg->lcore_count = count;
 445         return ret;
 446 }
 447
 448 static int
 449 eal_parse_coremask(const char *coremask, int *cores)
 450 {
 451         unsigned count = 0;
 452         int i, j, idx;
 453         int val;
 454         char c;
 455
 456         for (idx = 0; idx < RTE_MAX_LCORE; idx++)
 457                 cores[idx] = -1;
 458         idx = 0;
 459
 460         /* Remove all blank characters ahead and after .
 461          * Remove 0x/0X if exists.
 462          */
 463         while (isblank(*coremask))
 464                 coremask++;
 465         if (coremask[0] == '0' && ((coremask[1] == 'x')
 466                 || (coremask[1] == 'X')))
 467                 coremask += 2;
 468         i = strlen(coremask);
 469         while ((i > 0) && isblank(coremask[i - 1]))
 470                 i--;
 471         if (i == 0)
 472                 return -1;
 473
 474         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 475                 c = coremask[i];
 476                 if (isxdigit(c) == 0) {
 477                         /* invalid characters */
 478                         return -1;
 479                 }
 480                 val = xdigit2val(c);
 481                 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++)
 482                 {
 483                         if ((1 << j) & val) {
 484                                 cores[idx] = count;
 485                                 count++;
 486                         }
 487                 }
 488         }
 489         for (; i >= 0; i--)
 490                 if (coremask[i] != '0')
 491                         return -1;
 492         if (count == 0)
 493                 return -1;
 494         return 0;
 495 }
 496
 497 static int
 498 eal_parse_service_corelist(const char *corelist)
 499 {
 500         struct rte_config *cfg = rte_eal_get_configuration();
 501         int i, idx = 0;
 502         unsigned count = 0;
 503         char *end = NULL;
 504         int min, max;
 505         uint32_t taken_lcore_count = 0;
 506
 507         if (corelist == NULL)
 508                 return -1;
 509
 510         /* Remove all blank characters ahead and after */
 511         while (isblank(*corelist))
 512                 corelist++;
 513         i = strlen(corelist);
 514         while ((i > 0) && isblank(corelist[i - 1]))
 515                 i--;
 516
 517         /* Get list of cores */
 518         min = RTE_MAX_LCORE;
 519         do {
 520                 while (isblank(*corelist))
 521                         corelist++;
 522                 if (*corelist == '\0')
 523                         return -1;
 524                 errno = 0;
 525                 idx = strtoul(corelist, &end, 10);
 526                 if (errno || end == NULL)
 527                         return -1;
 528                 while (isblank(*end))
 529                         end++;
 530                 if (*end == '-') {
 531                         min = idx;
 532                 } else if ((*end == ',') || (*end == '\0')) {
 533                         max = idx;
 534                         if (min == RTE_MAX_LCORE)
 535                                 min = idx;
 536                         for (idx = min; idx <= max; idx++) {
 537                                 if (cfg->lcore_role[idx] != ROLE_SERVICE) {
 538                                         /* handle master lcore already parsed */
 539                                         uint32_t lcore = idx;
 540                                         if (cfg->master_lcore == lcore &&
 541                                                         master_lcore_parsed) {
 542                                                 RTE_LOG(ERR, EAL,
 543                                                         "Error: lcore %u is master lcore, cannot use as service core\n",
 544                                                         idx);
 545                                                 return -1;
 546                                         }
 547                                         if (cfg->lcore_role[idx] == ROLE_RTE)
 548                                                 taken_lcore_count++;
 549
 550                                         lcore_config[idx].core_role =
 551                                                         ROLE_SERVICE;
 552                                         count++;
 553                                 }
 554                         }
 555                         min = RTE_MAX_LCORE;
 556                 } else
 557                         return -1;
 558                 corelist = end + 1;
 559         } while (*end != '\0');
 560
 561         if (count == 0)
 562                 return -1;
 563
 564         if (core_parsed && taken_lcore_count != count) {
 565                 RTE_LOG(WARNING, EAL,
 566                         "Not all service cores were in the coremask. "
 567                         "Please ensure -c or -l includes service cores\n");
 568         }
 569
 570         return 0;
 571 }
 572
 573 static int
 574 eal_parse_corelist(const char *corelist, int *cores)
 575 {
 576         unsigned count = 0;
 577         char *end = NULL;
 578         int min, max;
 579         int idx;
 580
 581         for (idx = 0; idx < RTE_MAX_LCORE; idx++)
 582                 cores[idx] = -1;
 583
 584         /* Remove all blank characters ahead */
 585         while (isblank(*corelist))
 586                 corelist++;
 587
 588         /* Get list of cores */
 589         min = RTE_MAX_LCORE;
 590         do {
 591                 while (isblank(*corelist))
 592                         corelist++;
 593                 if (*corelist == '\0')
 594                         return -1;
 595                 errno = 0;
 596                 idx = strtol(corelist, &end, 10);
 597                 if (errno || end == NULL)
 598                         return -1;
 599                 if (idx < 0 || idx >= RTE_MAX_LCORE)
 600                         return -1;
 601                 while (isblank(*end))
 602                         end++;
 603                 if (*end == '-') {
 604                         min = idx;
 605                 } else if ((*end == ',') || (*end == '\0')) {
 606                         max = idx;
 607                         if (min == RTE_MAX_LCORE)
 608                                 min = idx;
 609                         for (idx = min; idx <= max; idx++) {
 610                                 if (cores[idx] == -1) {
 611                                         cores[idx] = count;
 612                                         count++;
 613                                 }
 614                         }
 615                         min = RTE_MAX_LCORE;
 616                 } else
 617                         return -1;
 618                 corelist = end + 1;
 619         } while (*end != '\0');
 620
 621         if (count == 0)
 622                 return -1;
 623         return 0;
 624 }
 625
 626 /* Changes the lcore id of the master thread */
 627 static int
 628 eal_parse_master_lcore(const char *arg)
 629 {
 630         char *parsing_end;
 631         struct rte_config *cfg = rte_eal_get_configuration();
 632
 633         errno = 0;
 634         cfg->master_lcore = (uint32_t) strtol(arg, &parsing_end, 0);
 635         if (errno || parsing_end[0] != 0)
 636                 return -1;
 637         if (cfg->master_lcore >= RTE_MAX_LCORE)
 638                 return -1;
 639         master_lcore_parsed = 1;
 640
 641         /* ensure master core is not used as service core */
 642         if (lcore_config[cfg->master_lcore].core_role == ROLE_SERVICE) {
 643                 RTE_LOG(ERR, EAL,
 644                         "Error: Master lcore is used as a service core\n");
 645                 return -1;
 646         }
 647
 648         return 0;
 649 }
 650
 651 /*
 652  * Parse elem, the elem could be single number/range or '(' ')' group
 653  * 1) A single number elem, it's just a simple digit. e.g. 9
 654  * 2) A single range elem, two digits with a '-' between. e.g. 2-6
 655  * 3) A group elem, combines multiple 1) or 2) with '( )'. e.g (0,2-4,6)
 656  *    Within group elem, '-' used for a range separator;
 657  *                       ',' used for a single number.
 658  */
 659 static int
 660 eal_parse_set(const char *input, uint16_t set[], unsigned num)
 661 {
 662         unsigned idx;
 663         const char *str = input;
 664         char *end = NULL;
 665         unsigned min, max;
 666
 667         memset(set, 0, num * sizeof(uint16_t));
 668
 669         while (isblank(*str))
 670                 str++;
 671
 672         /* only digit or left bracket is qualify for start point */
 673         if ((!isdigit(*str) && *str != '(') || *str == '\0')
 674                 return -1;
 675
 676         /* process single number or single range of number */
 677         if (*str != '(') {
 678                 errno = 0;
 679                 idx = strtoul(str, &end, 10);
 680                 if (errno || end == NULL || idx >= num)
 681                         return -1;
 682                 else {
 683                         while (isblank(*end))
 684                                 end++;
 685
 686                         min = idx;
 687                         max = idx;
 688                         if (*end == '-') {
 689                                 /* process single <number>-<number> */
 690                                 end++;
 691                                 while (isblank(*end))
 692                                         end++;
 693                                 if (!isdigit(*end))
 694                                         return -1;
 695
 696                                 errno = 0;
 697                                 idx = strtoul(end, &end, 10);
 698                                 if (errno || end == NULL || idx >= num)
 699                                         return -1;
 700                                 max = idx;
 701                                 while (isblank(*end))
 702                                         end++;
 703                                 if (*end != ',' && *end != '\0')
 704                                         return -1;
 705                         }
 706
 707                         if (*end != ',' && *end != '\0' &&
 708                             *end != '@')
 709                                 return -1;
 710
 711                         for (idx = RTE_MIN(min, max);
 712                              idx <= RTE_MAX(min, max); idx++)
 713                                 set[idx] = 1;
 714
 715                         return end - input;
 716                 }
 717         }
 718
 719         /* process set within bracket */
 720         str++;
 721         while (isblank(*str))
 722                 str++;
 723         if (*str == '\0')
 724                 return -1;
 725
 726         min = RTE_MAX_LCORE;
 727         do {
 728
 729                 /* go ahead to the first digit */
 730                 while (isblank(*str))
 731                         str++;
 732                 if (!isdigit(*str))
 733                         return -1;
 734
 735                 /* get the digit value */
 736                 errno = 0;
 737                 idx = strtoul(str, &end, 10);
 738                 if (errno || end == NULL || idx >= num)
 739                         return -1;
 740
 741                 /* go ahead to separator '-',',' and ')' */
 742                 while (isblank(*end))
 743                         end++;
 744                 if (*end == '-') {
 745                         if (min == RTE_MAX_LCORE)
 746                                 min = idx;
 747                         else /* avoid continuous '-' */
 748                                 return -1;
 749                 } else if ((*end == ',') || (*end == ')')) {
 750                         max = idx;
 751                         if (min == RTE_MAX_LCORE)
 752                                 min = idx;
 753                         for (idx = RTE_MIN(min, max);
 754                              idx <= RTE_MAX(min, max); idx++)
 755                                 set[idx] = 1;
 756
 757                         min = RTE_MAX_LCORE;
 758                 } else
 759                         return -1;
 760
 761                 str = end + 1;
 762         } while (*end != '\0' && *end != ')');
 763
 764         /*
 765          * to avoid failure that tail blank makes end character check fail
 766          * in eal_parse_lcores( )
 767          */
 768         while (isblank(*str))
 769                 str++;
 770
 771         return str - input;
 772 }
 773
 774 /* convert from set array to cpuset bitmap */
 775 static int
 776 convert_to_cpuset(rte_cpuset_t *cpusetp,
 777               uint16_t *set, unsigned num)
 778 {
 779         unsigned idx;
 780
 781         CPU_ZERO(cpusetp);
 782
 783         for (idx = 0; idx < num; idx++) {
 784                 if (!set[idx])
 785                         continue;
 786
 787                 if (!lcore_config[idx].detected) {
 788                         RTE_LOG(ERR, EAL, "core %u "
 789                                 "unavailable\n", idx);
 790                         return -1;
 791                 }
 792
 793                 CPU_SET(idx, cpusetp);
 794         }
 795
 796         return 0;
 797 }
 798
 799 /*
 800  * The format pattern: --lcores='<lcores[@cpus]>[<,lcores[@cpus]>...]'
 801  * lcores, cpus could be a single digit/range or a group.
 802  * '(' and ')' are necessary if it's a group.
 803  * If not supply '@cpus', the value of cpus uses the same as lcores.
 804  * e.g. '1,2@(5-7),(3-5)@(0,2),(0,6),7-8' means start 9 EAL thread as below
 805  *   lcore 0 runs on cpuset 0x41 (cpu 0,6)
 806  *   lcore 1 runs on cpuset 0x2 (cpu 1)
 807  *   lcore 2 runs on cpuset 0xe0 (cpu 5,6,7)
 808  *   lcore 3,4,5 runs on cpuset 0x5 (cpu 0,2)
 809  *   lcore 6 runs on cpuset 0x41 (cpu 0,6)
 810  *   lcore 7 runs on cpuset 0x80 (cpu 7)
 811  *   lcore 8 runs on cpuset 0x100 (cpu 8)
 812  */
 813 static int
 814 eal_parse_lcores(const char *lcores)
 815 {
 816         struct rte_config *cfg = rte_eal_get_configuration();
 817         static uint16_t set[RTE_MAX_LCORE];
 818         unsigned idx = 0;
 819         unsigned count = 0;
 820         const char *lcore_start = NULL;
 821         const char *end = NULL;
 822         int offset;
 823         rte_cpuset_t cpuset;
 824         int lflags;
 825         int ret = -1;
 826
 827         if (lcores == NULL)
 828                 return -1;
 829
 830         /* Remove all blank characters ahead and after */
 831         while (isblank(*lcores))
 832                 lcores++;
 833
 834         CPU_ZERO(&cpuset);
 835
 836         /* Reset lcore config */
 837         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 838                 cfg->lcore_role[idx] = ROLE_OFF;
 839                 lcore_config[idx].core_index = -1;
 840                 CPU_ZERO(&lcore_config[idx].cpuset);
 841         }
 842
 843         /* Get list of cores */
 844         do {
 845                 while (isblank(*lcores))
 846                         lcores++;
 847                 if (*lcores == '\0')
 848                         goto err;
 849
 850                 lflags = 0;
 851
 852                 /* record lcore_set start point */
 853                 lcore_start = lcores;
 854
 855                 /* go across a complete bracket */
 856                 if (*lcore_start == '(') {
 857                         lcores += strcspn(lcores, ")");
 858                         if (*lcores++ == '\0')
 859                                 goto err;
 860                 }
 861
 862                 /* scan the separator '@', ','(next) or '\0'(finish) */
 863                 lcores += strcspn(lcores, "@,");
 864
 865                 if (*lcores == '@') {
 866                         /* explicit assign cpu_set */
 867                         offset = eal_parse_set(lcores + 1, set, RTE_DIM(set));
 868                         if (offset < 0)
 869                                 goto err;
 870
 871                         /* prepare cpu_set and update the end cursor */
 872                         if (0 > convert_to_cpuset(&cpuset,
 873                                                   set, RTE_DIM(set)))
 874                                 goto err;
 875                         end = lcores + 1 + offset;
 876                 } else { /* ',' or '\0' */
 877                         /* haven't given cpu_set, 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 (0 > eal_parse_set(lcore_start, set, RTE_DIM(set)))
 892                         goto err;
 893
 894                 /* without '@', by default using lcore_set as cpu_set */
 895                 if (*lcores != '@' &&
 896                     0 > convert_to_cpuset(&cpuset, set, RTE_DIM(set)))
 897                         goto err;
 898
 899                 /* start to update lcore_set */
 900                 for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 901                         if (!set[idx])
 902                                 continue;
 903
 904                         if (cfg->lcore_role[idx] != ROLE_RTE) {
 905                                 lcore_config[idx].core_index = count;
 906                                 cfg->lcore_role[idx] = ROLE_RTE;
 907                                 count++;
 908                         }
 909
 910                         if (lflags) {
 911                                 CPU_ZERO(&cpuset);
 912                                 CPU_SET(idx, &cpuset);
 913                         }
 914                         rte_memcpy(&lcore_config[idx].cpuset, &cpuset,
 915                                    sizeof(rte_cpuset_t));
 916                 }
 917
 918                 lcores = end + 1;
 919         } while (*end != '\0');
 920
 921         if (count == 0)
 922                 goto err;
 923
 924         cfg->lcore_count = count;
 925         ret = 0;
 926
 927 err:
 928
 929         return ret;
 930 }
 931
 932 static int
 933 eal_parse_syslog(const char *facility, struct internal_config *conf)
 934 {
 935         int i;
 936         static const struct {
 937                 const char *name;
 938                 int value;
 939         } map[] = {
 940                 { "auth", LOG_AUTH },
 941                 { "cron", LOG_CRON },
 942                 { "daemon", LOG_DAEMON },
 943                 { "ftp", LOG_FTP },
 944                 { "kern", LOG_KERN },
 945                 { "lpr", LOG_LPR },
 946                 { "mail", LOG_MAIL },
 947                 { "news", LOG_NEWS },
 948                 { "syslog", LOG_SYSLOG },
 949                 { "user", LOG_USER },
 950                 { "uucp", LOG_UUCP },
 951                 { "local0", LOG_LOCAL0 },
 952                 { "local1", LOG_LOCAL1 },
 953                 { "local2", LOG_LOCAL2 },
 954                 { "local3", LOG_LOCAL3 },
 955                 { "local4", LOG_LOCAL4 },
 956                 { "local5", LOG_LOCAL5 },
 957                 { "local6", LOG_LOCAL6 },
 958                 { "local7", LOG_LOCAL7 },
 959                 { NULL, 0 }
 960         };
 961
 962         for (i = 0; map[i].name; i++) {
 963                 if (!strcmp(facility, map[i].name)) {
 964                         conf->syslog_facility = map[i].value;
 965                         return 0;
 966                 }
 967         }
 968         return -1;
 969 }
 970
 971 static int
 972 eal_parse_log_priority(const char *level)
 973 {
 974         static const char * const levels[] = {
 975                 [RTE_LOG_EMERG]   = "emergency",
 976                 [RTE_LOG_ALERT]   = "alert",
 977                 [RTE_LOG_CRIT]    = "critical",
 978                 [RTE_LOG_ERR]     = "error",
 979                 [RTE_LOG_WARNING] = "warning",
 980                 [RTE_LOG_NOTICE]  = "notice",
 981                 [RTE_LOG_INFO]    = "info",
 982                 [RTE_LOG_DEBUG]   = "debug",
 983         };
 984         size_t len = strlen(level);
 985         unsigned long tmp;
 986         char *end;
 987         unsigned int i;
 988
 989         if (len == 0)
 990                 return -1;
 991
 992         /* look for named values, skip 0 which is not a valid level */
 993         for (i = 1; i < RTE_DIM(levels); i++) {
 994                 if (strncmp(levels[i], level, len) == 0)
 995                         return i;
 996         }
 997
 998         /* not a string, maybe it is numeric */
 999         errno = 0;
1000         tmp = strtoul(level, &end, 0);
1001
1002         /* check for errors */
1003         if (errno != 0 || end == NULL || *end != '\0' ||
1004             tmp >= UINT32_MAX)
1005                 return -1;
1006
1007         return tmp;
1008 }
1009
1010 static int
1011 eal_parse_log_level(const char *arg)
1012 {
1013         const char *pattern = NULL;
1014         const char *regex = NULL;
1015         char *str, *level;
1016         int priority;
1017
1018         str = strdup(arg);
1019         if (str == NULL)
1020                 return -1;
1021
1022         if ((level = strchr(str, ','))) {
1023                 regex = str;
1024                 *level++ = '\0';
1025         } else if ((level = strchr(str, ':'))) {
1026                 pattern = str;
1027                 *level++ = '\0';
1028         } else {
1029                 level = str;
1030         }
1031
1032         priority = eal_parse_log_priority(level);
1033         if (priority < 0) {
1034                 fprintf(stderr, "invalid log priority: %s\n", level);
1035                 goto fail;
1036         }
1037
1038         if (regex) {
1039                 if (rte_log_set_level_regexp(regex, priority) < 0) {
1040                         fprintf(stderr, "cannot set log level %s,%d\n",
1041                                 pattern, priority);
1042                         goto fail;
1043                 }
1044                 if (rte_log_save_regexp(regex, priority) < 0)
1045                         goto fail;
1046         } else if (pattern) {
1047                 if (rte_log_set_level_pattern(pattern, priority) < 0) {
1048                         fprintf(stderr, "cannot set log level %s:%d\n",
1049                                 pattern, priority);
1050                         goto fail;
1051                 }
1052                 if (rte_log_save_pattern(pattern, priority) < 0)
1053                         goto fail;
1054         } else {
1055                 rte_log_set_global_level(priority);
1056         }
1057
1058         free(str);
1059         return 0;
1060
1061 fail:
1062         free(str);
1063         return -1;
1064 }
1065
1066 static enum rte_proc_type_t
1067 eal_parse_proc_type(const char *arg)
1068 {
1069         if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
1070                 return RTE_PROC_PRIMARY;
1071         if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
1072                 return RTE_PROC_SECONDARY;
1073         if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
1074                 return RTE_PROC_AUTO;
1075
1076         return RTE_PROC_INVALID;
1077 }
1078
1079 static int
1080 eal_parse_iova_mode(const char *name)
1081 {
1082         int mode;
1083
1084         if (name == NULL)
1085                 return -1;
1086
1087         if (!strcmp("pa", name))
1088                 mode = RTE_IOVA_PA;
1089         else if (!strcmp("va", name))
1090                 mode = RTE_IOVA_VA;
1091         else
1092                 return -1;
1093
1094         internal_config.iova_mode = mode;
1095         return 0;
1096 }
1097
1098 /* caller is responsible for freeing the returned string */
1099 static char *
1100 available_cores(void)
1101 {
1102         char *str = NULL;
1103         int previous;
1104         int sequence;
1105         char *tmp;
1106         int idx;
1107
1108         /* find the first available cpu */
1109         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
1110                 if (!lcore_config[idx].detected)
1111                         continue;
1112                 break;
1113         }
1114         if (idx >= RTE_MAX_LCORE)
1115                 return NULL;
1116
1117         /* first sequence */
1118         if (asprintf(&str, "%d", idx) < 0)
1119                 return NULL;
1120         previous = idx;
1121         sequence = 0;
1122
1123         for (idx++ ; idx < RTE_MAX_LCORE; idx++) {
1124                 if (!lcore_config[idx].detected)
1125                         continue;
1126
1127                 if (idx == previous + 1) {
1128                         previous = idx;
1129                         sequence = 1;
1130                         continue;
1131                 }
1132
1133                 /* finish current sequence */
1134                 if (sequence) {
1135                         if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
1136                                 free(str);
1137                                 return NULL;
1138                         }
1139                         free(str);
1140                         str = tmp;
1141                 }
1142
1143                 /* new sequence */
1144                 if (asprintf(&tmp, "%s,%d", str, idx) < 0) {
1145                         free(str);
1146                         return NULL;
1147                 }
1148                 free(str);
1149                 str = tmp;
1150                 previous = idx;
1151                 sequence = 0;
1152         }
1153
1154         /* finish last sequence */
1155         if (sequence) {
1156                 if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
1157                         free(str);
1158                         return NULL;
1159                 }
1160                 free(str);
1161                 str = tmp;
1162         }
1163
1164         return str;
1165 }
1166
1167 int
1168 eal_parse_common_option(int opt, const char *optarg,
1169                         struct internal_config *conf)
1170 {
1171         static int b_used;
1172         static int w_used;
1173
1174         switch (opt) {
1175         /* blacklist */
1176         case 'b':
1177                 if (w_used)
1178                         goto bw_used;
1179                 if (eal_option_device_add(RTE_DEVTYPE_BLACKLISTED_PCI,
1180                                 optarg) < 0) {
1181                         return -1;
1182                 }
1183                 b_used = 1;
1184                 break;
1185         /* whitelist */
1186         case 'w':
1187                 if (b_used)
1188                         goto bw_used;
1189                 if (eal_option_device_add(RTE_DEVTYPE_WHITELISTED_PCI,
1190                                 optarg) < 0) {
1191                         return -1;
1192                 }
1193                 w_used = 1;
1194                 break;
1195         /* coremask */
1196         case 'c': {
1197                 int lcore_indexes[RTE_MAX_LCORE];
1198
1199                 if (eal_service_cores_parsed())
1200                         RTE_LOG(WARNING, EAL,
1201                                 "Service cores parsed before dataplane cores. Please ensure -c is before -s or -S\n");
1202                 if (eal_parse_coremask(optarg, lcore_indexes) < 0) {
1203                         RTE_LOG(ERR, EAL, "invalid coremask syntax\n");
1204                         return -1;
1205                 }
1206                 if (update_lcore_config(lcore_indexes) < 0) {
1207                         char *available = available_cores();
1208
1209                         RTE_LOG(ERR, EAL,
1210                                 "invalid coremask, please check specified cores are part of %s\n",
1211                                 available);
1212                         free(available);
1213                         return -1;
1214                 }
1215
1216                 if (core_parsed) {
1217                         RTE_LOG(ERR, EAL, "Option -c is ignored, because (%s) is set!\n",
1218                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1219                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1220                                 "-c");
1221                         return -1;
1222                 }
1223
1224                 core_parsed = LCORE_OPT_MSK;
1225                 break;
1226         }
1227         /* corelist */
1228         case 'l': {
1229                 int lcore_indexes[RTE_MAX_LCORE];
1230
1231                 if (eal_service_cores_parsed())
1232                         RTE_LOG(WARNING, EAL,
1233                                 "Service cores parsed before dataplane cores. Please ensure -l is before -s or -S\n");
1234
1235                 if (eal_parse_corelist(optarg, lcore_indexes) < 0) {
1236                         RTE_LOG(ERR, EAL, "invalid core list syntax\n");
1237                         return -1;
1238                 }
1239                 if (update_lcore_config(lcore_indexes) < 0) {
1240                         char *available = available_cores();
1241
1242                         RTE_LOG(ERR, EAL,
1243                                 "invalid core list, please check specified cores are part of %s\n",
1244                                 available);
1245                         free(available);
1246                         return -1;
1247                 }
1248
1249                 if (core_parsed) {
1250                         RTE_LOG(ERR, EAL, "Option -l is ignored, because (%s) is set!\n",
1251                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1252                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1253                                 "-l");
1254                         return -1;
1255                 }
1256
1257                 core_parsed = LCORE_OPT_LST;
1258                 break;
1259         }
1260         /* service coremask */
1261         case 's':
1262                 if (eal_parse_service_coremask(optarg) < 0) {
1263                         RTE_LOG(ERR, EAL, "invalid service coremask\n");
1264                         return -1;
1265                 }
1266                 break;
1267         /* service corelist */
1268         case 'S':
1269                 if (eal_parse_service_corelist(optarg) < 0) {
1270                         RTE_LOG(ERR, EAL, "invalid service core list\n");
1271                         return -1;
1272                 }
1273                 break;
1274         /* size of memory */
1275         case 'm':
1276                 conf->memory = atoi(optarg);
1277                 conf->memory *= 1024ULL;
1278                 conf->memory *= 1024ULL;
1279                 mem_parsed = 1;
1280                 break;
1281         /* force number of channels */
1282         case 'n':
1283                 conf->force_nchannel = atoi(optarg);
1284                 if (conf->force_nchannel == 0) {
1285                         RTE_LOG(ERR, EAL, "invalid channel number\n");
1286                         return -1;
1287                 }
1288                 break;
1289         /* force number of ranks */
1290         case 'r':
1291                 conf->force_nrank = atoi(optarg);
1292                 if (conf->force_nrank == 0 ||
1293                     conf->force_nrank > 16) {
1294                         RTE_LOG(ERR, EAL, "invalid rank number\n");
1295                         return -1;
1296                 }
1297                 break;
1298         /* force loading of external driver */
1299         case 'd':
1300                 if (eal_plugin_add(optarg) == -1)
1301                         return -1;
1302                 break;
1303         case 'v':
1304                 /* since message is explicitly requested by user, we
1305                  * write message at highest log level so it can always
1306                  * be seen
1307                  * even if info or warning messages are disabled */
1308                 RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
1309                 break;
1310
1311         /* long options */
1312         case OPT_HUGE_UNLINK_NUM:
1313                 conf->hugepage_unlink = 1;
1314                 break;
1315
1316         case OPT_NO_HUGE_NUM:
1317                 conf->no_hugetlbfs = 1;
1318                 /* no-huge is legacy mem */
1319                 conf->legacy_mem = 1;
1320                 break;
1321
1322         case OPT_NO_PCI_NUM:
1323                 conf->no_pci = 1;
1324                 break;
1325
1326         case OPT_NO_HPET_NUM:
1327                 conf->no_hpet = 1;
1328                 break;
1329
1330         case OPT_VMWARE_TSC_MAP_NUM:
1331                 conf->vmware_tsc_map = 1;
1332                 break;
1333
1334         case OPT_NO_SHCONF_NUM:
1335                 conf->no_shconf = 1;
1336                 break;
1337
1338         case OPT_IN_MEMORY_NUM:
1339                 conf->in_memory = 1;
1340                 /* in-memory is a superset of noshconf and huge-unlink */
1341                 conf->no_shconf = 1;
1342                 conf->hugepage_unlink = 1;
1343                 break;
1344
1345         case OPT_PROC_TYPE_NUM:
1346                 conf->process_type = eal_parse_proc_type(optarg);
1347                 break;
1348
1349         case OPT_MASTER_LCORE_NUM:
1350                 if (eal_parse_master_lcore(optarg) < 0) {
1351                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1352                                         OPT_MASTER_LCORE "\n");
1353                         return -1;
1354                 }
1355                 break;
1356
1357         case OPT_VDEV_NUM:
1358                 if (eal_option_device_add(RTE_DEVTYPE_VIRTUAL,
1359                                 optarg) < 0) {
1360                         return -1;
1361                 }
1362                 break;
1363
1364         case OPT_SYSLOG_NUM:
1365                 if (eal_parse_syslog(optarg, conf) < 0) {
1366                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1367                                         OPT_SYSLOG "\n");
1368                         return -1;
1369                 }
1370                 break;
1371
1372         case OPT_LOG_LEVEL_NUM: {
1373                 if (eal_parse_log_level(optarg) < 0) {
1374                         RTE_LOG(ERR, EAL,
1375                                 "invalid parameters for --"
1376                                 OPT_LOG_LEVEL "\n");
1377                         return -1;
1378                 }
1379                 break;
1380         }
1381         case OPT_LCORES_NUM:
1382                 if (eal_parse_lcores(optarg) < 0) {
1383                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1384                                 OPT_LCORES "\n");
1385                         return -1;
1386                 }
1387
1388                 if (core_parsed) {
1389                         RTE_LOG(ERR, EAL, "Option --lcore is ignored, because (%s) is set!\n",
1390                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1391                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1392                                 "--lcore");
1393                         return -1;
1394                 }
1395
1396                 core_parsed = LCORE_OPT_MAP;
1397                 break;
1398         case OPT_LEGACY_MEM_NUM:
1399                 conf->legacy_mem = 1;
1400                 break;
1401         case OPT_SINGLE_FILE_SEGMENTS_NUM:
1402                 conf->single_file_segments = 1;
1403                 break;
1404         case OPT_IOVA_MODE_NUM:
1405                 if (eal_parse_iova_mode(optarg) < 0) {
1406                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1407                                 OPT_IOVA_MODE "\n");
1408                         return -1;
1409                 }
1410                 break;
1411
1412         /* don't know what to do, leave this to caller */
1413         default:
1414                 return 1;
1415
1416         }
1417
1418         return 0;
1419 bw_used:
1420         RTE_LOG(ERR, EAL, "Options blacklist (-b) and whitelist (-w) "
1421                 "cannot be used at the same time\n");
1422         return -1;
1423 }
1424
1425 static void
1426 eal_auto_detect_cores(struct rte_config *cfg)
1427 {
1428         unsigned int lcore_id;
1429         unsigned int removed = 0;
1430         rte_cpuset_t affinity_set;
1431
1432         if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1433                                 &affinity_set))
1434                 CPU_ZERO(&affinity_set);
1435
1436         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1437                 if (cfg->lcore_role[lcore_id] == ROLE_RTE &&
1438                     !CPU_ISSET(lcore_id, &affinity_set)) {
1439                         cfg->lcore_role[lcore_id] = ROLE_OFF;
1440                         removed++;
1441                 }
1442         }
1443
1444         cfg->lcore_count -= removed;
1445 }
1446
1447 static void
1448 compute_ctrl_threads_cpuset(struct internal_config *internal_cfg)
1449 {
1450         rte_cpuset_t *cpuset = &internal_cfg->ctrl_cpuset;
1451         rte_cpuset_t default_set;
1452         unsigned int lcore_id;
1453
1454         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1455                 if (rte_lcore_has_role(lcore_id, ROLE_OFF))
1456                         continue;
1457                 RTE_CPU_OR(cpuset, cpuset, &lcore_config[lcore_id].cpuset);
1458         }
1459         RTE_CPU_NOT(cpuset, cpuset);
1460
1461         if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1462                                 &default_set))
1463                 CPU_ZERO(&default_set);
1464
1465         RTE_CPU_AND(cpuset, cpuset, &default_set);
1466
1467         /* if no remaining cpu, use master lcore cpu affinity */
1468         if (!CPU_COUNT(cpuset)) {
1469                 memcpy(cpuset, &lcore_config[rte_get_master_lcore()].cpuset,
1470                         sizeof(*cpuset));
1471         }
1472 }
1473
1474 int
1475 eal_cleanup_config(struct internal_config *internal_cfg)
1476 {
1477         if (internal_cfg->hugefile_prefix != NULL)
1478                 free(internal_cfg->hugefile_prefix);
1479         if (internal_cfg->hugepage_dir != NULL)
1480                 free(internal_cfg->hugepage_dir);
1481         if (internal_cfg->user_mbuf_pool_ops_name != NULL)
1482                 free(internal_cfg->user_mbuf_pool_ops_name);
1483
1484         return 0;
1485 }
1486
1487 int
1488 eal_adjust_config(struct internal_config *internal_cfg)
1489 {
1490         int i;
1491         struct rte_config *cfg = rte_eal_get_configuration();
1492
1493         if (!core_parsed)
1494                 eal_auto_detect_cores(cfg);
1495
1496         if (internal_config.process_type == RTE_PROC_AUTO)
1497                 internal_config.process_type = eal_proc_type_detect();
1498
1499         /* default master lcore is the first one */
1500         if (!master_lcore_parsed) {
1501                 cfg->master_lcore = rte_get_next_lcore(-1, 0, 0);
1502                 if (cfg->master_lcore >= RTE_MAX_LCORE)
1503                         return -1;
1504                 lcore_config[cfg->master_lcore].core_role = ROLE_RTE;
1505         }
1506
1507         compute_ctrl_threads_cpuset(internal_cfg);
1508
1509         /* if no memory amounts were requested, this will result in 0 and
1510          * will be overridden later, right after eal_hugepage_info_init() */
1511         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
1512                 internal_cfg->memory += internal_cfg->socket_mem[i];
1513
1514         return 0;
1515 }
1516
1517 int
1518 eal_check_common_options(struct internal_config *internal_cfg)
1519 {
1520         struct rte_config *cfg = rte_eal_get_configuration();
1521
1522         if (cfg->lcore_role[cfg->master_lcore] != ROLE_RTE) {
1523                 RTE_LOG(ERR, EAL, "Master lcore is not enabled for DPDK\n");
1524                 return -1;
1525         }
1526
1527         if (internal_cfg->process_type == RTE_PROC_INVALID) {
1528                 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
1529                 return -1;
1530         }
1531         if (internal_cfg->hugefile_prefix != NULL &&
1532                         strlen(internal_cfg->hugefile_prefix) < 1) {
1533                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_FILE_PREFIX " option\n");
1534                 return -1;
1535         }
1536         if (internal_cfg->hugepage_dir != NULL &&
1537                         strlen(internal_cfg->hugepage_dir) < 1) {
1538                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_HUGE_DIR" option\n");
1539                 return -1;
1540         }
1541         if (internal_cfg->user_mbuf_pool_ops_name != NULL &&
1542                         strlen(internal_cfg->user_mbuf_pool_ops_name) < 1) {
1543                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_MBUF_POOL_OPS_NAME" option\n");
1544                 return -1;
1545         }
1546         if (index(eal_get_hugefile_prefix(), '%') != NULL) {
1547                 RTE_LOG(ERR, EAL, "Invalid char, '%%', in --"OPT_FILE_PREFIX" "
1548                         "option\n");
1549                 return -1;
1550         }
1551         if (mem_parsed && internal_cfg->force_sockets == 1) {
1552                 RTE_LOG(ERR, EAL, "Options -m and --"OPT_SOCKET_MEM" cannot "
1553                         "be specified at the same time\n");
1554                 return -1;
1555         }
1556         if (internal_cfg->no_hugetlbfs && internal_cfg->force_sockets == 1) {
1557                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_MEM" cannot "
1558                         "be specified together with --"OPT_NO_HUGE"\n");
1559                 return -1;
1560         }
1561         if (internal_cfg->no_hugetlbfs && internal_cfg->hugepage_unlink &&
1562                         !internal_cfg->in_memory) {
1563                 RTE_LOG(ERR, EAL, "Option --"OPT_HUGE_UNLINK" cannot "
1564                         "be specified together with --"OPT_NO_HUGE"\n");
1565                 return -1;
1566         }
1567         if (internal_config.force_socket_limits && internal_config.legacy_mem) {
1568                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_LIMIT
1569                         " is only supported in non-legacy memory mode\n");
1570         }
1571         if (internal_cfg->single_file_segments &&
1572                         internal_cfg->hugepage_unlink &&
1573                         !internal_cfg->in_memory) {
1574                 RTE_LOG(ERR, EAL, "Option --"OPT_SINGLE_FILE_SEGMENTS" is "
1575                         "not compatible with --"OPT_HUGE_UNLINK"\n");
1576                 return -1;
1577         }
1578         if (internal_cfg->legacy_mem &&
1579                         internal_cfg->in_memory) {
1580                 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
1581                                 "with --"OPT_IN_MEMORY"\n");
1582                 return -1;
1583         }
1584         if (internal_cfg->legacy_mem && internal_cfg->match_allocations) {
1585                 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
1586                                 "with --"OPT_MATCH_ALLOCATIONS"\n");
1587                 return -1;
1588         }
1589         if (internal_cfg->no_hugetlbfs && internal_cfg->match_allocations) {
1590                 RTE_LOG(ERR, EAL, "Option --"OPT_NO_HUGE" is not compatible "
1591                                 "with --"OPT_MATCH_ALLOCATIONS"\n");
1592                 return -1;
1593         }
1594
1595         return 0;
1596 }
1597
1598 void
1599 eal_common_usage(void)
1600 {
1601         printf("[options]\n\n"
1602                "EAL common options:\n"
1603                "  -c COREMASK         Hexadecimal bitmask of cores to run on\n"
1604                "  -l CORELIST         List of cores to run on\n"
1605                "                      The argument format is <c1>[-c2][,c3[-c4],...]\n"
1606                "                      where c1, c2, etc are core indexes between 0 and %d\n"
1607                "  --"OPT_LCORES" COREMAP    Map lcore set to physical cpu set\n"
1608                "                      The argument format is\n"
1609                "                            '<lcores[@cpus]>[<,lcores[@cpus]>...]'\n"
1610                "                      lcores and cpus list are grouped by '(' and ')'\n"
1611                "                      Within the group, '-' is used for range separator,\n"
1612                "                      ',' is used for single number separator.\n"
1613                "                      '( )' can be omitted for single element group,\n"
1614                "                      '@' can be omitted if cpus and lcores have the same value\n"
1615                "  -s SERVICE COREMASK Hexadecimal bitmask of cores to be used as service cores\n"
1616                "  --"OPT_MASTER_LCORE" ID   Core ID that is used as master\n"
1617                "  --"OPT_MBUF_POOL_OPS_NAME" Pool ops name for mbuf to use\n"
1618                "  -n CHANNELS         Number of memory channels\n"
1619                "  -m MB               Memory to allocate (see also --"OPT_SOCKET_MEM")\n"
1620                "  -r RANKS            Force number of memory ranks (don't detect)\n"
1621                "  -b, --"OPT_PCI_BLACKLIST" Add a PCI device in black list.\n"
1622                "                      Prevent EAL from using this PCI device. The argument\n"
1623                "                      format is <domain:bus:devid.func>.\n"
1624                "  -w, --"OPT_PCI_WHITELIST" Add a PCI device in white list.\n"
1625                "                      Only use the specified PCI devices. The argument format\n"
1626                "                      is <[domain:]bus:devid.func>. This option can be present\n"
1627                "                      several times (once per device).\n"
1628                "                      [NOTE: PCI whitelist cannot be used with -b option]\n"
1629                "  --"OPT_VDEV"              Add a virtual device.\n"
1630                "                      The argument format is <driver><id>[,key=val,...]\n"
1631                "                      (ex: --vdev=net_pcap0,iface=eth2).\n"
1632                "  --"OPT_IOVA_MODE"   Set IOVA mode. 'pa' for IOVA_PA\n"
1633                "                      'va' for IOVA_VA\n"
1634                "  -d LIB.so|DIR       Add a driver or driver directory\n"
1635                "                      (can be used multiple times)\n"
1636                "  --"OPT_VMWARE_TSC_MAP"    Use VMware TSC map instead of native RDTSC\n"
1637                "  --"OPT_PROC_TYPE"         Type of this process (primary|secondary|auto)\n"
1638                "  --"OPT_SYSLOG"            Set syslog facility\n"
1639                "  --"OPT_LOG_LEVEL"=<int>   Set global log level\n"
1640                "  --"OPT_LOG_LEVEL"=<type-match>:<int>\n"
1641                "                      Set specific log level\n"
1642                "  -v                  Display version information on startup\n"
1643                "  -h, --help          This help\n"
1644                "  --"OPT_IN_MEMORY"   Operate entirely in memory. This will\n"
1645                "                      disable secondary process support\n"
1646                "\nEAL options for DEBUG use only:\n"
1647                "  --"OPT_HUGE_UNLINK"       Unlink hugepage files after init\n"
1648                "  --"OPT_NO_HUGE"           Use malloc instead of hugetlbfs\n"
1649                "  --"OPT_NO_PCI"            Disable PCI\n"
1650                "  --"OPT_NO_HPET"           Disable HPET\n"
1651                "  --"OPT_NO_SHCONF"         No shared config (mmap'd files)\n"
1652                "\n", RTE_MAX_LCORE);
1653         rte_option_usage();
1654 }