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_TRACE_DIR,         1, NULL, OPT_TRACE_DIR_NUM        },
  73         {OPT_MASTER_LCORE,      1, NULL, OPT_MASTER_LCORE_NUM     },
  74         {OPT_MBUF_POOL_OPS_NAME, 1, NULL, OPT_MBUF_POOL_OPS_NAME_NUM},
  75         {OPT_NO_HPET,           0, NULL, OPT_NO_HPET_NUM          },
  76         {OPT_NO_HUGE,           0, NULL, OPT_NO_HUGE_NUM          },
  77         {OPT_NO_PCI,            0, NULL, OPT_NO_PCI_NUM           },
  78         {OPT_NO_SHCONF,         0, NULL, OPT_NO_SHCONF_NUM        },
  79         {OPT_IN_MEMORY,         0, NULL, OPT_IN_MEMORY_NUM        },
  80         {OPT_PCI_BLACKLIST,     1, NULL, OPT_PCI_BLACKLIST_NUM    },
  81         {OPT_PCI_WHITELIST,     1, NULL, OPT_PCI_WHITELIST_NUM    },
  82         {OPT_PROC_TYPE,         1, NULL, OPT_PROC_TYPE_NUM        },
  83         {OPT_SOCKET_MEM,        1, NULL, OPT_SOCKET_MEM_NUM       },
  84         {OPT_SOCKET_LIMIT,      1, NULL, OPT_SOCKET_LIMIT_NUM     },
  85         {OPT_SYSLOG,            1, NULL, OPT_SYSLOG_NUM           },
  86         {OPT_VDEV,              1, NULL, OPT_VDEV_NUM             },
  87         {OPT_VFIO_INTR,         1, NULL, OPT_VFIO_INTR_NUM        },
  88         {OPT_VMWARE_TSC_MAP,    0, NULL, OPT_VMWARE_TSC_MAP_NUM   },
  89         {OPT_LEGACY_MEM,        0, NULL, OPT_LEGACY_MEM_NUM       },
  90         {OPT_SINGLE_FILE_SEGMENTS, 0, NULL, OPT_SINGLE_FILE_SEGMENTS_NUM},
  91         {OPT_MATCH_ALLOCATIONS, 0, NULL, OPT_MATCH_ALLOCATIONS_NUM},
  92         {0,                     0, NULL, 0                        }
  93 };
  94
  95 TAILQ_HEAD(shared_driver_list, shared_driver);
  96
  97 /* Definition for shared object drivers. */
  98 struct shared_driver {
  99         TAILQ_ENTRY(shared_driver) next;
 100
 101         char    name[PATH_MAX];
 102         void*   lib_handle;
 103 };
 104
 105 /* List of external loadable drivers */
 106 static struct shared_driver_list solib_list =
 107 TAILQ_HEAD_INITIALIZER(solib_list);
 108
 109 /* Default path of external loadable drivers */
 110 static const char *default_solib_dir = RTE_EAL_PMD_PATH;
 111
 112 /*
 113  * Stringified version of solib path used by dpdk-pmdinfo.py
 114  * Note: PLEASE DO NOT ALTER THIS without making a corresponding
 115  * change to usertools/dpdk-pmdinfo.py
 116  */
 117 static const char dpdk_solib_path[] __rte_used =
 118 "DPDK_PLUGIN_PATH=" RTE_EAL_PMD_PATH;
 119
 120 TAILQ_HEAD(device_option_list, device_option);
 121
 122 struct device_option {
 123         TAILQ_ENTRY(device_option) next;
 124
 125         enum rte_devtype type;
 126         char arg[];
 127 };
 128
 129 static struct device_option_list devopt_list =
 130 TAILQ_HEAD_INITIALIZER(devopt_list);
 131
 132 static int master_lcore_parsed;
 133 static int mem_parsed;
 134 static int core_parsed;
 135
 136 static int
 137 eal_option_device_add(enum rte_devtype type, const char *optarg)
 138 {
 139         struct device_option *devopt;
 140         size_t optlen;
 141         int ret;
 142
 143         optlen = strlen(optarg) + 1;
 144         devopt = calloc(1, sizeof(*devopt) + optlen);
 145         if (devopt == NULL) {
 146                 RTE_LOG(ERR, EAL, "Unable to allocate device option\n");
 147                 return -ENOMEM;
 148         }
 149
 150         devopt->type = type;
 151         ret = strlcpy(devopt->arg, optarg, optlen);
 152         if (ret < 0) {
 153                 RTE_LOG(ERR, EAL, "Unable to copy device option\n");
 154                 free(devopt);
 155                 return -EINVAL;
 156         }
 157         TAILQ_INSERT_TAIL(&devopt_list, devopt, next);
 158         return 0;
 159 }
 160
 161 int
 162 eal_option_device_parse(void)
 163 {
 164         struct device_option *devopt;
 165         void *tmp;
 166         int ret = 0;
 167
 168         TAILQ_FOREACH_SAFE(devopt, &devopt_list, next, tmp) {
 169                 if (ret == 0) {
 170                         ret = rte_devargs_add(devopt->type, devopt->arg);
 171                         if (ret)
 172                                 RTE_LOG(ERR, EAL, "Unable to parse device '%s'\n",
 173                                         devopt->arg);
 174                 }
 175                 TAILQ_REMOVE(&devopt_list, devopt, next);
 176                 free(devopt);
 177         }
 178         return ret;
 179 }
 180
 181 const char *
 182 eal_get_hugefile_prefix(void)
 183 {
 184         if (internal_config.hugefile_prefix != NULL)
 185                 return internal_config.hugefile_prefix;
 186         return HUGEFILE_PREFIX_DEFAULT;
 187 }
 188
 189 void
 190 eal_reset_internal_config(struct internal_config *internal_cfg)
 191 {
 192         int i;
 193
 194         internal_cfg->memory = 0;
 195         internal_cfg->force_nrank = 0;
 196         internal_cfg->force_nchannel = 0;
 197         internal_cfg->hugefile_prefix = NULL;
 198         internal_cfg->hugepage_dir = NULL;
 199         internal_cfg->force_sockets = 0;
 200         /* zero out the NUMA config */
 201         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 202                 internal_cfg->socket_mem[i] = 0;
 203         internal_cfg->force_socket_limits = 0;
 204         /* zero out the NUMA limits config */
 205         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 206                 internal_cfg->socket_limit[i] = 0;
 207         /* zero out hugedir descriptors */
 208         for (i = 0; i < MAX_HUGEPAGE_SIZES; i++) {
 209                 memset(&internal_cfg->hugepage_info[i], 0,
 210                                 sizeof(internal_cfg->hugepage_info[0]));
 211                 internal_cfg->hugepage_info[i].lock_descriptor = -1;
 212         }
 213         internal_cfg->base_virtaddr = 0;
 214
 215 #ifdef LOG_DAEMON
 216         internal_cfg->syslog_facility = LOG_DAEMON;
 217 #endif
 218
 219         /* if set to NONE, interrupt mode is determined automatically */
 220         internal_cfg->vfio_intr_mode = RTE_INTR_MODE_NONE;
 221
 222 #ifdef RTE_LIBEAL_USE_HPET
 223         internal_cfg->no_hpet = 0;
 224 #else
 225         internal_cfg->no_hpet = 1;
 226 #endif
 227         internal_cfg->vmware_tsc_map = 0;
 228         internal_cfg->create_uio_dev = 0;
 229         internal_cfg->iova_mode = RTE_IOVA_DC;
 230         internal_cfg->user_mbuf_pool_ops_name = NULL;
 231         CPU_ZERO(&internal_cfg->ctrl_cpuset);
 232         internal_cfg->init_complete = 0;
 233 }
 234
 235 static int
 236 eal_plugin_add(const char *path)
 237 {
 238         struct shared_driver *solib;
 239
 240         solib = malloc(sizeof(*solib));
 241         if (solib == NULL) {
 242                 RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
 243                 return -1;
 244         }
 245         memset(solib, 0, sizeof(*solib));
 246         strlcpy(solib->name, path, PATH_MAX-1);
 247         solib->name[PATH_MAX-1] = 0;
 248         TAILQ_INSERT_TAIL(&solib_list, solib, next);
 249
 250         return 0;
 251 }
 252
 253 static int
 254 eal_plugindir_init(const char *path)
 255 {
 256         DIR *d = NULL;
 257         struct dirent *dent = NULL;
 258         char sopath[PATH_MAX];
 259
 260         if (path == NULL || *path == '\0')
 261                 return 0;
 262
 263         d = opendir(path);
 264         if (d == NULL) {
 265                 RTE_LOG(ERR, EAL, "failed to open directory %s: %s\n",
 266                         path, strerror(errno));
 267                 return -1;
 268         }
 269
 270         while ((dent = readdir(d)) != NULL) {
 271                 struct stat sb;
 272
 273                 snprintf(sopath, sizeof(sopath), "%s/%s", path, dent->d_name);
 274
 275                 if (!(stat(sopath, &sb) == 0 && S_ISREG(sb.st_mode)))
 276                         continue;
 277
 278                 if (eal_plugin_add(sopath) == -1)
 279                         break;
 280         }
 281
 282         closedir(d);
 283         /* XXX this ignores failures from readdir() itself */
 284         return (dent == NULL) ? 0 : -1;
 285 }
 286
 287 int
 288 eal_plugins_init(void)
 289 {
 290 #ifndef RTE_EXEC_ENV_WINDOWS
 291         struct shared_driver *solib = NULL;
 292         struct stat sb;
 293
 294         if (*default_solib_dir != '\0' && stat(default_solib_dir, &sb) == 0 &&
 295                                 S_ISDIR(sb.st_mode))
 296                 eal_plugin_add(default_solib_dir);
 297
 298         TAILQ_FOREACH(solib, &solib_list, next) {
 299
 300                 if (stat(solib->name, &sb) == 0 && S_ISDIR(sb.st_mode)) {
 301                         if (eal_plugindir_init(solib->name) == -1) {
 302                                 RTE_LOG(ERR, EAL,
 303                                         "Cannot init plugin directory %s\n",
 304                                         solib->name);
 305                                 return -1;
 306                         }
 307                 } else {
 308                         RTE_LOG(DEBUG, EAL, "open shared lib %s\n",
 309                                 solib->name);
 310                         solib->lib_handle = dlopen(solib->name, RTLD_NOW);
 311                         if (solib->lib_handle == NULL) {
 312                                 RTE_LOG(ERR, EAL, "%s\n", dlerror());
 313                                 return -1;
 314                         }
 315                 }
 316
 317         }
 318         return 0;
 319 #endif
 320 }
 321
 322 /*
 323  * Parse the coremask given as argument (hexadecimal string) and fill
 324  * the global configuration (core role and core count) with the parsed
 325  * value.
 326  */
 327 static int xdigit2val(unsigned char c)
 328 {
 329         int val;
 330
 331         if (isdigit(c))
 332                 val = c - '0';
 333         else if (isupper(c))
 334                 val = c - 'A' + 10;
 335         else
 336                 val = c - 'a' + 10;
 337         return val;
 338 }
 339
 340 static int
 341 eal_parse_service_coremask(const char *coremask)
 342 {
 343         struct rte_config *cfg = rte_eal_get_configuration();
 344         int i, j, idx = 0;
 345         unsigned int count = 0;
 346         char c;
 347         int val;
 348         uint32_t taken_lcore_count = 0;
 349
 350         if (coremask == NULL)
 351                 return -1;
 352         /* Remove all blank characters ahead and after .
 353          * Remove 0x/0X if exists.
 354          */
 355         while (isblank(*coremask))
 356                 coremask++;
 357         if (coremask[0] == '0' && ((coremask[1] == 'x')
 358                 || (coremask[1] == 'X')))
 359                 coremask += 2;
 360         i = strlen(coremask);
 361         while ((i > 0) && isblank(coremask[i - 1]))
 362                 i--;
 363
 364         if (i == 0)
 365                 return -1;
 366
 367         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 368                 c = coremask[i];
 369                 if (isxdigit(c) == 0) {
 370                         /* invalid characters */
 371                         return -1;
 372                 }
 373                 val = xdigit2val(c);
 374                 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE;
 375                                 j++, idx++) {
 376                         if ((1 << j) & val) {
 377                                 /* handle master lcore already parsed */
 378                                 uint32_t lcore = idx;
 379                                 if (master_lcore_parsed &&
 380                                                 cfg->master_lcore == lcore) {
 381                                         RTE_LOG(ERR, EAL,
 382                                                 "lcore %u is master lcore, cannot use as service core\n",
 383                                                 idx);
 384                                         return -1;
 385                                 }
 386
 387                                 if (eal_cpu_detected(idx) == 0) {
 388                                         RTE_LOG(ERR, EAL,
 389                                                 "lcore %u unavailable\n", idx);
 390                                         return -1;
 391                                 }
 392
 393                                 if (cfg->lcore_role[idx] == ROLE_RTE)
 394                                         taken_lcore_count++;
 395
 396                                 lcore_config[idx].core_role = ROLE_SERVICE;
 397                                 count++;
 398                         }
 399                 }
 400         }
 401
 402         for (; i >= 0; i--)
 403                 if (coremask[i] != '0')
 404                         return -1;
 405
 406         for (; idx < RTE_MAX_LCORE; idx++)
 407                 lcore_config[idx].core_index = -1;
 408
 409         if (count == 0)
 410                 return -1;
 411
 412         if (core_parsed && taken_lcore_count != count) {
 413                 RTE_LOG(WARNING, EAL,
 414                         "Not all service cores are in the coremask. "
 415                         "Please ensure -c or -l includes service cores\n");
 416         }
 417
 418         cfg->service_lcore_count = count;
 419         return 0;
 420 }
 421
 422 static int
 423 eal_service_cores_parsed(void)
 424 {
 425         int idx;
 426         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 427                 if (lcore_config[idx].core_role == ROLE_SERVICE)
 428                         return 1;
 429         }
 430         return 0;
 431 }
 432
 433 static int
 434 update_lcore_config(int *cores)
 435 {
 436         struct rte_config *cfg = rte_eal_get_configuration();
 437         unsigned int count = 0;
 438         unsigned int i;
 439         int ret = 0;
 440
 441         for (i = 0; i < RTE_MAX_LCORE; i++) {
 442                 if (cores[i] != -1) {
 443                         if (eal_cpu_detected(i) == 0) {
 444                                 RTE_LOG(ERR, EAL, "lcore %u unavailable\n", i);
 445                                 ret = -1;
 446                                 continue;
 447                         }
 448                         cfg->lcore_role[i] = ROLE_RTE;
 449                         count++;
 450                 } else {
 451                         cfg->lcore_role[i] = ROLE_OFF;
 452                 }
 453                 lcore_config[i].core_index = cores[i];
 454         }
 455         if (!ret)
 456                 cfg->lcore_count = count;
 457         return ret;
 458 }
 459
 460 static int
 461 eal_parse_coremask(const char *coremask, int *cores)
 462 {
 463         unsigned count = 0;
 464         int i, j, idx;
 465         int val;
 466         char c;
 467
 468         for (idx = 0; idx < RTE_MAX_LCORE; idx++)
 469                 cores[idx] = -1;
 470         idx = 0;
 471
 472         /* Remove all blank characters ahead and after .
 473          * Remove 0x/0X if exists.
 474          */
 475         while (isblank(*coremask))
 476                 coremask++;
 477         if (coremask[0] == '0' && ((coremask[1] == 'x')
 478                 || (coremask[1] == 'X')))
 479                 coremask += 2;
 480         i = strlen(coremask);
 481         while ((i > 0) && isblank(coremask[i - 1]))
 482                 i--;
 483         if (i == 0)
 484                 return -1;
 485
 486         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 487                 c = coremask[i];
 488                 if (isxdigit(c) == 0) {
 489                         /* invalid characters */
 490                         return -1;
 491                 }
 492                 val = xdigit2val(c);
 493                 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++)
 494                 {
 495                         if ((1 << j) & val) {
 496                                 cores[idx] = count;
 497                                 count++;
 498                         }
 499                 }
 500         }
 501         for (; i >= 0; i--)
 502                 if (coremask[i] != '0')
 503                         return -1;
 504         if (count == 0)
 505                 return -1;
 506         return 0;
 507 }
 508
 509 static int
 510 eal_parse_service_corelist(const char *corelist)
 511 {
 512         struct rte_config *cfg = rte_eal_get_configuration();
 513         int i, idx = 0;
 514         unsigned count = 0;
 515         char *end = NULL;
 516         int min, max;
 517         uint32_t taken_lcore_count = 0;
 518
 519         if (corelist == NULL)
 520                 return -1;
 521
 522         /* Remove all blank characters ahead and after */
 523         while (isblank(*corelist))
 524                 corelist++;
 525         i = strlen(corelist);
 526         while ((i > 0) && isblank(corelist[i - 1]))
 527                 i--;
 528
 529         /* Get list of cores */
 530         min = RTE_MAX_LCORE;
 531         do {
 532                 while (isblank(*corelist))
 533                         corelist++;
 534                 if (*corelist == '\0')
 535                         return -1;
 536                 errno = 0;
 537                 idx = strtoul(corelist, &end, 10);
 538                 if (errno || end == NULL)
 539                         return -1;
 540                 while (isblank(*end))
 541                         end++;
 542                 if (*end == '-') {
 543                         min = idx;
 544                 } else if ((*end == ',') || (*end == '\0')) {
 545                         max = idx;
 546                         if (min == RTE_MAX_LCORE)
 547                                 min = idx;
 548                         for (idx = min; idx <= max; idx++) {
 549                                 if (cfg->lcore_role[idx] != ROLE_SERVICE) {
 550                                         /* handle master lcore already parsed */
 551                                         uint32_t lcore = idx;
 552                                         if (cfg->master_lcore == lcore &&
 553                                                         master_lcore_parsed) {
 554                                                 RTE_LOG(ERR, EAL,
 555                                                         "Error: lcore %u is master lcore, cannot use as service core\n",
 556                                                         idx);
 557                                                 return -1;
 558                                         }
 559                                         if (cfg->lcore_role[idx] == ROLE_RTE)
 560                                                 taken_lcore_count++;
 561
 562                                         lcore_config[idx].core_role =
 563                                                         ROLE_SERVICE;
 564                                         count++;
 565                                 }
 566                         }
 567                         min = RTE_MAX_LCORE;
 568                 } else
 569                         return -1;
 570                 corelist = end + 1;
 571         } while (*end != '\0');
 572
 573         if (count == 0)
 574                 return -1;
 575
 576         if (core_parsed && taken_lcore_count != count) {
 577                 RTE_LOG(WARNING, EAL,
 578                         "Not all service cores were in the coremask. "
 579                         "Please ensure -c or -l includes service cores\n");
 580         }
 581
 582         return 0;
 583 }
 584
 585 static int
 586 eal_parse_corelist(const char *corelist, int *cores)
 587 {
 588         unsigned count = 0;
 589         char *end = NULL;
 590         int min, max;
 591         int idx;
 592
 593         for (idx = 0; idx < RTE_MAX_LCORE; idx++)
 594                 cores[idx] = -1;
 595
 596         /* Remove all blank characters ahead */
 597         while (isblank(*corelist))
 598                 corelist++;
 599
 600         /* Get list of cores */
 601         min = RTE_MAX_LCORE;
 602         do {
 603                 while (isblank(*corelist))
 604                         corelist++;
 605                 if (*corelist == '\0')
 606                         return -1;
 607                 errno = 0;
 608                 idx = strtol(corelist, &end, 10);
 609                 if (errno || end == NULL)
 610                         return -1;
 611                 if (idx < 0 || idx >= RTE_MAX_LCORE)
 612                         return -1;
 613                 while (isblank(*end))
 614                         end++;
 615                 if (*end == '-') {
 616                         min = idx;
 617                 } else if ((*end == ',') || (*end == '\0')) {
 618                         max = idx;
 619                         if (min == RTE_MAX_LCORE)
 620                                 min = idx;
 621                         for (idx = min; idx <= max; idx++) {
 622                                 if (cores[idx] == -1) {
 623                                         cores[idx] = count;
 624                                         count++;
 625                                 }
 626                         }
 627                         min = RTE_MAX_LCORE;
 628                 } else
 629                         return -1;
 630                 corelist = end + 1;
 631         } while (*end != '\0');
 632
 633         if (count == 0)
 634                 return -1;
 635         return 0;
 636 }
 637
 638 /* Changes the lcore id of the master thread */
 639 static int
 640 eal_parse_master_lcore(const char *arg)
 641 {
 642         char *parsing_end;
 643         struct rte_config *cfg = rte_eal_get_configuration();
 644
 645         errno = 0;
 646         cfg->master_lcore = (uint32_t) strtol(arg, &parsing_end, 0);
 647         if (errno || parsing_end[0] != 0)
 648                 return -1;
 649         if (cfg->master_lcore >= RTE_MAX_LCORE)
 650                 return -1;
 651         master_lcore_parsed = 1;
 652
 653         /* ensure master core is not used as service core */
 654         if (lcore_config[cfg->master_lcore].core_role == ROLE_SERVICE) {
 655                 RTE_LOG(ERR, EAL,
 656                         "Error: Master lcore is used as a service core\n");
 657                 return -1;
 658         }
 659
 660         return 0;
 661 }
 662
 663 /*
 664  * Parse elem, the elem could be single number/range or '(' ')' group
 665  * 1) A single number elem, it's just a simple digit. e.g. 9
 666  * 2) A single range elem, two digits with a '-' between. e.g. 2-6
 667  * 3) A group elem, combines multiple 1) or 2) with '( )'. e.g (0,2-4,6)
 668  *    Within group elem, '-' used for a range separator;
 669  *                       ',' used for a single number.
 670  */
 671 static int
 672 eal_parse_set(const char *input, rte_cpuset_t *set)
 673 {
 674         unsigned idx;
 675         const char *str = input;
 676         char *end = NULL;
 677         unsigned min, max;
 678
 679         CPU_ZERO(set);
 680
 681         while (isblank(*str))
 682                 str++;
 683
 684         /* only digit or left bracket is qualify for start point */
 685         if ((!isdigit(*str) && *str != '(') || *str == '\0')
 686                 return -1;
 687
 688         /* process single number or single range of number */
 689         if (*str != '(') {
 690                 errno = 0;
 691                 idx = strtoul(str, &end, 10);
 692                 if (errno || end == NULL || idx >= CPU_SETSIZE)
 693                         return -1;
 694                 else {
 695                         while (isblank(*end))
 696                                 end++;
 697
 698                         min = idx;
 699                         max = idx;
 700                         if (*end == '-') {
 701                                 /* process single <number>-<number> */
 702                                 end++;
 703                                 while (isblank(*end))
 704                                         end++;
 705                                 if (!isdigit(*end))
 706                                         return -1;
 707
 708                                 errno = 0;
 709                                 idx = strtoul(end, &end, 10);
 710                                 if (errno || end == NULL || idx >= CPU_SETSIZE)
 711                                         return -1;
 712                                 max = idx;
 713                                 while (isblank(*end))
 714                                         end++;
 715                                 if (*end != ',' && *end != '\0')
 716                                         return -1;
 717                         }
 718
 719                         if (*end != ',' && *end != '\0' &&
 720                             *end != '@')
 721                                 return -1;
 722
 723                         for (idx = RTE_MIN(min, max);
 724                              idx <= RTE_MAX(min, max); idx++)
 725                                 CPU_SET(idx, set);
 726
 727                         return end - input;
 728                 }
 729         }
 730
 731         /* process set within bracket */
 732         str++;
 733         while (isblank(*str))
 734                 str++;
 735         if (*str == '\0')
 736                 return -1;
 737
 738         min = RTE_MAX_LCORE;
 739         do {
 740
 741                 /* go ahead to the first digit */
 742                 while (isblank(*str))
 743                         str++;
 744                 if (!isdigit(*str))
 745                         return -1;
 746
 747                 /* get the digit value */
 748                 errno = 0;
 749                 idx = strtoul(str, &end, 10);
 750                 if (errno || end == NULL || idx >= CPU_SETSIZE)
 751                         return -1;
 752
 753                 /* go ahead to separator '-',',' and ')' */
 754                 while (isblank(*end))
 755                         end++;
 756                 if (*end == '-') {
 757                         if (min == RTE_MAX_LCORE)
 758                                 min = idx;
 759                         else /* avoid continuous '-' */
 760                                 return -1;
 761                 } else if ((*end == ',') || (*end == ')')) {
 762                         max = idx;
 763                         if (min == RTE_MAX_LCORE)
 764                                 min = idx;
 765                         for (idx = RTE_MIN(min, max);
 766                              idx <= RTE_MAX(min, max); idx++)
 767                                 CPU_SET(idx, set);
 768
 769                         min = RTE_MAX_LCORE;
 770                 } else
 771                         return -1;
 772
 773                 str = end + 1;
 774         } while (*end != '\0' && *end != ')');
 775
 776         /*
 777          * to avoid failure that tail blank makes end character check fail
 778          * in eal_parse_lcores( )
 779          */
 780         while (isblank(*str))
 781                 str++;
 782
 783         return str - input;
 784 }
 785
 786 static int
 787 check_cpuset(rte_cpuset_t *set)
 788 {
 789         unsigned int idx;
 790
 791         for (idx = 0; idx < CPU_SETSIZE; idx++) {
 792                 if (!CPU_ISSET(idx, set))
 793                         continue;
 794
 795                 if (eal_cpu_detected(idx) == 0) {
 796                         RTE_LOG(ERR, EAL, "core %u "
 797                                 "unavailable\n", idx);
 798                         return -1;
 799                 }
 800         }
 801         return 0;
 802 }
 803
 804 /*
 805  * The format pattern: --lcores='<lcores[@cpus]>[<,lcores[@cpus]>...]'
 806  * lcores, cpus could be a single digit/range or a group.
 807  * '(' and ')' are necessary if it's a group.
 808  * If not supply '@cpus', the value of cpus uses the same as lcores.
 809  * e.g. '1,2@(5-7),(3-5)@(0,2),(0,6),7-8' means start 9 EAL thread as below
 810  *   lcore 0 runs on cpuset 0x41 (cpu 0,6)
 811  *   lcore 1 runs on cpuset 0x2 (cpu 1)
 812  *   lcore 2 runs on cpuset 0xe0 (cpu 5,6,7)
 813  *   lcore 3,4,5 runs on cpuset 0x5 (cpu 0,2)
 814  *   lcore 6 runs on cpuset 0x41 (cpu 0,6)
 815  *   lcore 7 runs on cpuset 0x80 (cpu 7)
 816  *   lcore 8 runs on cpuset 0x100 (cpu 8)
 817  */
 818 static int
 819 eal_parse_lcores(const char *lcores)
 820 {
 821         struct rte_config *cfg = rte_eal_get_configuration();
 822         rte_cpuset_t lcore_set;
 823         unsigned int set_count;
 824         unsigned idx = 0;
 825         unsigned count = 0;
 826         const char *lcore_start = NULL;
 827         const char *end = NULL;
 828         int offset;
 829         rte_cpuset_t cpuset;
 830         int lflags;
 831         int ret = -1;
 832
 833         if (lcores == NULL)
 834                 return -1;
 835
 836         /* Remove all blank characters ahead and after */
 837         while (isblank(*lcores))
 838                 lcores++;
 839
 840         CPU_ZERO(&cpuset);
 841
 842         /* Reset lcore config */
 843         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 844                 cfg->lcore_role[idx] = ROLE_OFF;
 845                 lcore_config[idx].core_index = -1;
 846                 CPU_ZERO(&lcore_config[idx].cpuset);
 847         }
 848
 849         /* Get list of cores */
 850         do {
 851                 while (isblank(*lcores))
 852                         lcores++;
 853                 if (*lcores == '\0')
 854                         goto err;
 855
 856                 lflags = 0;
 857
 858                 /* record lcore_set start point */
 859                 lcore_start = lcores;
 860
 861                 /* go across a complete bracket */
 862                 if (*lcore_start == '(') {
 863                         lcores += strcspn(lcores, ")");
 864                         if (*lcores++ == '\0')
 865                                 goto err;
 866                 }
 867
 868                 /* scan the separator '@', ','(next) or '\0'(finish) */
 869                 lcores += strcspn(lcores, "@,");
 870
 871                 if (*lcores == '@') {
 872                         /* explicit assign cpuset and update the end cursor */
 873                         offset = eal_parse_set(lcores + 1, &cpuset);
 874                         if (offset < 0)
 875                                 goto err;
 876                         end = lcores + 1 + offset;
 877                 } else { /* ',' or '\0' */
 878                         /* haven't given cpuset, current loop done */
 879                         end = lcores;
 880
 881                         /* go back to check <number>-<number> */
 882                         offset = strcspn(lcore_start, "(-");
 883                         if (offset < (end - lcore_start) &&
 884                             *(lcore_start + offset) != '(')
 885                                 lflags = 1;
 886                 }
 887
 888                 if (*end != ',' && *end != '\0')
 889                         goto err;
 890
 891                 /* parse lcore_set from start point */
 892                 if (eal_parse_set(lcore_start, &lcore_set) < 0)
 893                         goto err;
 894
 895                 /* without '@', by default using lcore_set as cpuset */
 896                 if (*lcores != '@')
 897                         rte_memcpy(&cpuset, &lcore_set, sizeof(cpuset));
 898
 899                 set_count = CPU_COUNT(&lcore_set);
 900                 /* start to update lcore_set */
 901                 for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 902                         if (!CPU_ISSET(idx, &lcore_set))
 903                                 continue;
 904                         set_count--;
 905
 906                         if (cfg->lcore_role[idx] != ROLE_RTE) {
 907                                 lcore_config[idx].core_index = count;
 908                                 cfg->lcore_role[idx] = ROLE_RTE;
 909                                 count++;
 910                         }
 911
 912                         if (lflags) {
 913                                 CPU_ZERO(&cpuset);
 914                                 CPU_SET(idx, &cpuset);
 915                         }
 916
 917                         if (check_cpuset(&cpuset) < 0)
 918                                 goto err;
 919                         rte_memcpy(&lcore_config[idx].cpuset, &cpuset,
 920                                    sizeof(rte_cpuset_t));
 921                 }
 922
 923                 /* some cores from the lcore_set can't be handled by EAL */
 924                 if (set_count != 0)
 925                         goto err;
 926
 927                 lcores = end + 1;
 928         } while (*end != '\0');
 929
 930         if (count == 0)
 931                 goto err;
 932
 933         cfg->lcore_count = count;
 934         ret = 0;
 935
 936 err:
 937
 938         return ret;
 939 }
 940
 941 #ifndef RTE_EXEC_ENV_WINDOWS
 942 static int
 943 eal_parse_syslog(const char *facility, struct internal_config *conf)
 944 {
 945         int i;
 946         static const struct {
 947                 const char *name;
 948                 int value;
 949         } map[] = {
 950                 { "auth", LOG_AUTH },
 951                 { "cron", LOG_CRON },
 952                 { "daemon", LOG_DAEMON },
 953                 { "ftp", LOG_FTP },
 954                 { "kern", LOG_KERN },
 955                 { "lpr", LOG_LPR },
 956                 { "mail", LOG_MAIL },
 957                 { "news", LOG_NEWS },
 958                 { "syslog", LOG_SYSLOG },
 959                 { "user", LOG_USER },
 960                 { "uucp", LOG_UUCP },
 961                 { "local0", LOG_LOCAL0 },
 962                 { "local1", LOG_LOCAL1 },
 963                 { "local2", LOG_LOCAL2 },
 964                 { "local3", LOG_LOCAL3 },
 965                 { "local4", LOG_LOCAL4 },
 966                 { "local5", LOG_LOCAL5 },
 967                 { "local6", LOG_LOCAL6 },
 968                 { "local7", LOG_LOCAL7 },
 969                 { NULL, 0 }
 970         };
 971
 972         for (i = 0; map[i].name; i++) {
 973                 if (!strcmp(facility, map[i].name)) {
 974                         conf->syslog_facility = map[i].value;
 975                         return 0;
 976                 }
 977         }
 978         return -1;
 979 }
 980 #endif
 981
 982 static int
 983 eal_parse_log_priority(const char *level)
 984 {
 985         static const char * const levels[] = {
 986                 [RTE_LOG_EMERG]   = "emergency",
 987                 [RTE_LOG_ALERT]   = "alert",
 988                 [RTE_LOG_CRIT]    = "critical",
 989                 [RTE_LOG_ERR]     = "error",
 990                 [RTE_LOG_WARNING] = "warning",
 991                 [RTE_LOG_NOTICE]  = "notice",
 992                 [RTE_LOG_INFO]    = "info",
 993                 [RTE_LOG_DEBUG]   = "debug",
 994         };
 995         size_t len = strlen(level);
 996         unsigned long tmp;
 997         char *end;
 998         unsigned int i;
 999
1000         if (len == 0)
1001                 return -1;
1002
1003         /* look for named values, skip 0 which is not a valid level */
1004         for (i = 1; i < RTE_DIM(levels); i++) {
1005                 if (strncmp(levels[i], level, len) == 0)
1006                         return i;
1007         }
1008
1009         /* not a string, maybe it is numeric */
1010         errno = 0;
1011         tmp = strtoul(level, &end, 0);
1012
1013         /* check for errors */
1014         if (errno != 0 || end == NULL || *end != '\0' ||
1015             tmp >= UINT32_MAX)
1016                 return -1;
1017
1018         return tmp;
1019 }
1020
1021 static int
1022 eal_parse_log_level(const char *arg)
1023 {
1024         const char *pattern = NULL;
1025         const char *regex = NULL;
1026         char *str, *level;
1027         int priority;
1028
1029         str = strdup(arg);
1030         if (str == NULL)
1031                 return -1;
1032
1033         if ((level = strchr(str, ','))) {
1034                 regex = str;
1035                 *level++ = '\0';
1036         } else if ((level = strchr(str, ':'))) {
1037                 pattern = str;
1038                 *level++ = '\0';
1039         } else {
1040                 level = str;
1041         }
1042
1043         priority = eal_parse_log_priority(level);
1044         if (priority < 0) {
1045                 fprintf(stderr, "invalid log priority: %s\n", level);
1046                 goto fail;
1047         }
1048
1049         if (regex) {
1050                 if (rte_log_set_level_regexp(regex, priority) < 0) {
1051                         fprintf(stderr, "cannot set log level %s,%d\n",
1052                                 regex, priority);
1053                         goto fail;
1054                 }
1055                 if (rte_log_save_regexp(regex, priority) < 0)
1056                         goto fail;
1057         } else if (pattern) {
1058                 if (rte_log_set_level_pattern(pattern, priority) < 0) {
1059                         fprintf(stderr, "cannot set log level %s:%d\n",
1060                                 pattern, priority);
1061                         goto fail;
1062                 }
1063                 if (rte_log_save_pattern(pattern, priority) < 0)
1064                         goto fail;
1065         } else {
1066                 rte_log_set_global_level(priority);
1067         }
1068
1069         free(str);
1070         return 0;
1071
1072 fail:
1073         free(str);
1074         return -1;
1075 }
1076
1077 static enum rte_proc_type_t
1078 eal_parse_proc_type(const char *arg)
1079 {
1080         if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
1081                 return RTE_PROC_PRIMARY;
1082         if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
1083                 return RTE_PROC_SECONDARY;
1084         if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
1085                 return RTE_PROC_AUTO;
1086
1087         return RTE_PROC_INVALID;
1088 }
1089
1090 static int
1091 eal_parse_iova_mode(const char *name)
1092 {
1093         int mode;
1094
1095         if (name == NULL)
1096                 return -1;
1097
1098         if (!strcmp("pa", name))
1099                 mode = RTE_IOVA_PA;
1100         else if (!strcmp("va", name))
1101                 mode = RTE_IOVA_VA;
1102         else
1103                 return -1;
1104
1105         internal_config.iova_mode = mode;
1106         return 0;
1107 }
1108
1109 static int
1110 eal_parse_base_virtaddr(const char *arg)
1111 {
1112         char *end;
1113         uint64_t addr;
1114
1115         errno = 0;
1116         addr = strtoull(arg, &end, 16);
1117
1118         /* check for errors */
1119         if ((errno != 0) || (arg[0] == '\0') || end == NULL || (*end != '\0'))
1120                 return -1;
1121
1122         /* make sure we don't exceed 32-bit boundary on 32-bit target */
1123 #ifndef RTE_ARCH_64
1124         if (addr >= UINTPTR_MAX)
1125                 return -1;
1126 #endif
1127
1128         /* align the addr on 16M boundary, 16MB is the minimum huge page
1129          * size on IBM Power architecture. If the addr is aligned to 16MB,
1130          * it can align to 2MB for x86. So this alignment can also be used
1131          * on x86 and other architectures.
1132          */
1133         internal_config.base_virtaddr =
1134                 RTE_PTR_ALIGN_CEIL((uintptr_t)addr, (size_t)RTE_PGSIZE_16M);
1135
1136         return 0;
1137 }
1138
1139 /* caller is responsible for freeing the returned string */
1140 static char *
1141 available_cores(void)
1142 {
1143         char *str = NULL;
1144         int previous;
1145         int sequence;
1146         char *tmp;
1147         int idx;
1148
1149         /* find the first available cpu */
1150         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
1151                 if (eal_cpu_detected(idx) == 0)
1152                         continue;
1153                 break;
1154         }
1155         if (idx >= RTE_MAX_LCORE)
1156                 return NULL;
1157
1158         /* first sequence */
1159         if (asprintf(&str, "%d", idx) < 0)
1160                 return NULL;
1161         previous = idx;
1162         sequence = 0;
1163
1164         for (idx++ ; idx < RTE_MAX_LCORE; idx++) {
1165                 if (eal_cpu_detected(idx) == 0)
1166                         continue;
1167
1168                 if (idx == previous + 1) {
1169                         previous = idx;
1170                         sequence = 1;
1171                         continue;
1172                 }
1173
1174                 /* finish current sequence */
1175                 if (sequence) {
1176                         if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
1177                                 free(str);
1178                                 return NULL;
1179                         }
1180                         free(str);
1181                         str = tmp;
1182                 }
1183
1184                 /* new sequence */
1185                 if (asprintf(&tmp, "%s,%d", str, idx) < 0) {
1186                         free(str);
1187                         return NULL;
1188                 }
1189                 free(str);
1190                 str = tmp;
1191                 previous = idx;
1192                 sequence = 0;
1193         }
1194
1195         /* finish last sequence */
1196         if (sequence) {
1197                 if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
1198                         free(str);
1199                         return NULL;
1200                 }
1201                 free(str);
1202                 str = tmp;
1203         }
1204
1205         return str;
1206 }
1207
1208 int
1209 eal_parse_common_option(int opt, const char *optarg,
1210                         struct internal_config *conf)
1211 {
1212         static int b_used;
1213         static int w_used;
1214
1215         switch (opt) {
1216         /* blacklist */
1217         case 'b':
1218                 if (w_used)
1219                         goto bw_used;
1220                 if (eal_option_device_add(RTE_DEVTYPE_BLACKLISTED_PCI,
1221                                 optarg) < 0) {
1222                         return -1;
1223                 }
1224                 b_used = 1;
1225                 break;
1226         /* whitelist */
1227         case 'w':
1228                 if (b_used)
1229                         goto bw_used;
1230                 if (eal_option_device_add(RTE_DEVTYPE_WHITELISTED_PCI,
1231                                 optarg) < 0) {
1232                         return -1;
1233                 }
1234                 w_used = 1;
1235                 break;
1236         /* coremask */
1237         case 'c': {
1238                 int lcore_indexes[RTE_MAX_LCORE];
1239
1240                 if (eal_service_cores_parsed())
1241                         RTE_LOG(WARNING, EAL,
1242                                 "Service cores parsed before dataplane cores. Please ensure -c is before -s or -S\n");
1243                 if (eal_parse_coremask(optarg, lcore_indexes) < 0) {
1244                         RTE_LOG(ERR, EAL, "invalid coremask syntax\n");
1245                         return -1;
1246                 }
1247                 if (update_lcore_config(lcore_indexes) < 0) {
1248                         char *available = available_cores();
1249
1250                         RTE_LOG(ERR, EAL,
1251                                 "invalid coremask, please check specified cores are part of %s\n",
1252                                 available);
1253                         free(available);
1254                         return -1;
1255                 }
1256
1257                 if (core_parsed) {
1258                         RTE_LOG(ERR, EAL, "Option -c is ignored, because (%s) is set!\n",
1259                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1260                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1261                                 "-c");
1262                         return -1;
1263                 }
1264
1265                 core_parsed = LCORE_OPT_MSK;
1266                 break;
1267         }
1268         /* corelist */
1269         case 'l': {
1270                 int lcore_indexes[RTE_MAX_LCORE];
1271
1272                 if (eal_service_cores_parsed())
1273                         RTE_LOG(WARNING, EAL,
1274                                 "Service cores parsed before dataplane cores. Please ensure -l is before -s or -S\n");
1275
1276                 if (eal_parse_corelist(optarg, lcore_indexes) < 0) {
1277                         RTE_LOG(ERR, EAL, "invalid core list syntax\n");
1278                         return -1;
1279                 }
1280                 if (update_lcore_config(lcore_indexes) < 0) {
1281                         char *available = available_cores();
1282
1283                         RTE_LOG(ERR, EAL,
1284                                 "invalid core list, please check specified cores are part of %s\n",
1285                                 available);
1286                         free(available);
1287                         return -1;
1288                 }
1289
1290                 if (core_parsed) {
1291                         RTE_LOG(ERR, EAL, "Option -l is ignored, because (%s) is set!\n",
1292                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1293                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1294                                 "-l");
1295                         return -1;
1296                 }
1297
1298                 core_parsed = LCORE_OPT_LST;
1299                 break;
1300         }
1301         /* service coremask */
1302         case 's':
1303                 if (eal_parse_service_coremask(optarg) < 0) {
1304                         RTE_LOG(ERR, EAL, "invalid service coremask\n");
1305                         return -1;
1306                 }
1307                 break;
1308         /* service corelist */
1309         case 'S':
1310                 if (eal_parse_service_corelist(optarg) < 0) {
1311                         RTE_LOG(ERR, EAL, "invalid service core list\n");
1312                         return -1;
1313                 }
1314                 break;
1315         /* size of memory */
1316         case 'm':
1317                 conf->memory = atoi(optarg);
1318                 conf->memory *= 1024ULL;
1319                 conf->memory *= 1024ULL;
1320                 mem_parsed = 1;
1321                 break;
1322         /* force number of channels */
1323         case 'n':
1324                 conf->force_nchannel = atoi(optarg);
1325                 if (conf->force_nchannel == 0) {
1326                         RTE_LOG(ERR, EAL, "invalid channel number\n");
1327                         return -1;
1328                 }
1329                 break;
1330         /* force number of ranks */
1331         case 'r':
1332                 conf->force_nrank = atoi(optarg);
1333                 if (conf->force_nrank == 0 ||
1334                     conf->force_nrank > 16) {
1335                         RTE_LOG(ERR, EAL, "invalid rank number\n");
1336                         return -1;
1337                 }
1338                 break;
1339         /* force loading of external driver */
1340         case 'd':
1341                 if (eal_plugin_add(optarg) == -1)
1342                         return -1;
1343                 break;
1344         case 'v':
1345                 /* since message is explicitly requested by user, we
1346                  * write message at highest log level so it can always
1347                  * be seen
1348                  * even if info or warning messages are disabled */
1349                 RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
1350                 break;
1351
1352         /* long options */
1353         case OPT_HUGE_UNLINK_NUM:
1354                 conf->hugepage_unlink = 1;
1355                 break;
1356
1357         case OPT_NO_HUGE_NUM:
1358                 conf->no_hugetlbfs = 1;
1359                 /* no-huge is legacy mem */
1360                 conf->legacy_mem = 1;
1361                 break;
1362
1363         case OPT_NO_PCI_NUM:
1364                 conf->no_pci = 1;
1365                 break;
1366
1367         case OPT_NO_HPET_NUM:
1368                 conf->no_hpet = 1;
1369                 break;
1370
1371         case OPT_VMWARE_TSC_MAP_NUM:
1372                 conf->vmware_tsc_map = 1;
1373                 break;
1374
1375         case OPT_NO_SHCONF_NUM:
1376                 conf->no_shconf = 1;
1377                 break;
1378
1379         case OPT_IN_MEMORY_NUM:
1380                 conf->in_memory = 1;
1381                 /* in-memory is a superset of noshconf and huge-unlink */
1382                 conf->no_shconf = 1;
1383                 conf->hugepage_unlink = 1;
1384                 break;
1385
1386         case OPT_PROC_TYPE_NUM:
1387                 conf->process_type = eal_parse_proc_type(optarg);
1388                 break;
1389
1390         case OPT_MASTER_LCORE_NUM:
1391                 if (eal_parse_master_lcore(optarg) < 0) {
1392                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1393                                         OPT_MASTER_LCORE "\n");
1394                         return -1;
1395                 }
1396                 break;
1397
1398         case OPT_VDEV_NUM:
1399                 if (eal_option_device_add(RTE_DEVTYPE_VIRTUAL,
1400                                 optarg) < 0) {
1401                         return -1;
1402                 }
1403                 break;
1404
1405 #ifndef RTE_EXEC_ENV_WINDOWS
1406         case OPT_SYSLOG_NUM:
1407                 if (eal_parse_syslog(optarg, conf) < 0) {
1408                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1409                                         OPT_SYSLOG "\n");
1410                         return -1;
1411                 }
1412                 break;
1413 #endif
1414
1415         case OPT_LOG_LEVEL_NUM: {
1416                 if (eal_parse_log_level(optarg) < 0) {
1417                         RTE_LOG(ERR, EAL,
1418                                 "invalid parameters for --"
1419                                 OPT_LOG_LEVEL "\n");
1420                         return -1;
1421                 }
1422                 break;
1423         }
1424
1425         case OPT_TRACE_NUM: {
1426                 if (eal_trace_args_save(optarg) < 0) {
1427                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1428                                 OPT_TRACE "\n");
1429                         return -1;
1430                 }
1431                 break;
1432         }
1433
1434         case OPT_TRACE_DIR_NUM: {
1435                 if (eal_trace_dir_args_save(optarg) < 0) {
1436                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1437                                 OPT_TRACE_DIR "\n");
1438                         return -1;
1439                 }
1440                 break;
1441         }
1442
1443         case OPT_LCORES_NUM:
1444                 if (eal_parse_lcores(optarg) < 0) {
1445                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1446                                 OPT_LCORES "\n");
1447                         return -1;
1448                 }
1449
1450                 if (core_parsed) {
1451                         RTE_LOG(ERR, EAL, "Option --lcore is ignored, because (%s) is set!\n",
1452                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1453                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1454                                 "--lcore");
1455                         return -1;
1456                 }
1457
1458                 core_parsed = LCORE_OPT_MAP;
1459                 break;
1460         case OPT_LEGACY_MEM_NUM:
1461                 conf->legacy_mem = 1;
1462                 break;
1463         case OPT_SINGLE_FILE_SEGMENTS_NUM:
1464                 conf->single_file_segments = 1;
1465                 break;
1466         case OPT_IOVA_MODE_NUM:
1467                 if (eal_parse_iova_mode(optarg) < 0) {
1468                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1469                                 OPT_IOVA_MODE "\n");
1470                         return -1;
1471                 }
1472                 break;
1473         case OPT_BASE_VIRTADDR_NUM:
1474                 if (eal_parse_base_virtaddr(optarg) < 0) {
1475                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1476                                         OPT_BASE_VIRTADDR "\n");
1477                         return -1;
1478                 }
1479                 break;
1480
1481         /* don't know what to do, leave this to caller */
1482         default:
1483                 return 1;
1484
1485         }
1486
1487         return 0;
1488 bw_used:
1489         RTE_LOG(ERR, EAL, "Options blacklist (-b) and whitelist (-w) "
1490                 "cannot be used at the same time\n");
1491         return -1;
1492 }
1493
1494 static void
1495 eal_auto_detect_cores(struct rte_config *cfg)
1496 {
1497         unsigned int lcore_id;
1498         unsigned int removed = 0;
1499         rte_cpuset_t affinity_set;
1500
1501         if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1502                                 &affinity_set))
1503                 CPU_ZERO(&affinity_set);
1504
1505         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1506                 if (cfg->lcore_role[lcore_id] == ROLE_RTE &&
1507                     !CPU_ISSET(lcore_id, &affinity_set)) {
1508                         cfg->lcore_role[lcore_id] = ROLE_OFF;
1509                         removed++;
1510                 }
1511         }
1512
1513         cfg->lcore_count -= removed;
1514 }
1515
1516 static void
1517 compute_ctrl_threads_cpuset(struct internal_config *internal_cfg)
1518 {
1519         rte_cpuset_t *cpuset = &internal_cfg->ctrl_cpuset;
1520         rte_cpuset_t default_set;
1521         unsigned int lcore_id;
1522
1523         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1524                 if (rte_lcore_has_role(lcore_id, ROLE_OFF))
1525                         continue;
1526                 RTE_CPU_OR(cpuset, cpuset, &lcore_config[lcore_id].cpuset);
1527         }
1528         RTE_CPU_NOT(cpuset, cpuset);
1529
1530         if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1531                                 &default_set))
1532                 CPU_ZERO(&default_set);
1533
1534         RTE_CPU_AND(cpuset, cpuset, &default_set);
1535
1536         /* if no remaining cpu, use master lcore cpu affinity */
1537         if (!CPU_COUNT(cpuset)) {
1538                 memcpy(cpuset, &lcore_config[rte_get_master_lcore()].cpuset,
1539                         sizeof(*cpuset));
1540         }
1541 }
1542
1543 int
1544 eal_cleanup_config(struct internal_config *internal_cfg)
1545 {
1546         if (internal_cfg->hugefile_prefix != NULL)
1547                 free(internal_cfg->hugefile_prefix);
1548         if (internal_cfg->hugepage_dir != NULL)
1549                 free(internal_cfg->hugepage_dir);
1550         if (internal_cfg->user_mbuf_pool_ops_name != NULL)
1551                 free(internal_cfg->user_mbuf_pool_ops_name);
1552
1553         return 0;
1554 }
1555
1556 int
1557 eal_adjust_config(struct internal_config *internal_cfg)
1558 {
1559         int i;
1560         struct rte_config *cfg = rte_eal_get_configuration();
1561
1562         if (!core_parsed)
1563                 eal_auto_detect_cores(cfg);
1564
1565         if (internal_config.process_type == RTE_PROC_AUTO)
1566                 internal_config.process_type = eal_proc_type_detect();
1567
1568         /* default master lcore is the first one */
1569         if (!master_lcore_parsed) {
1570                 cfg->master_lcore = rte_get_next_lcore(-1, 0, 0);
1571                 if (cfg->master_lcore >= RTE_MAX_LCORE)
1572                         return -1;
1573                 lcore_config[cfg->master_lcore].core_role = ROLE_RTE;
1574         }
1575
1576         compute_ctrl_threads_cpuset(internal_cfg);
1577
1578         /* if no memory amounts were requested, this will result in 0 and
1579          * will be overridden later, right after eal_hugepage_info_init() */
1580         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
1581                 internal_cfg->memory += internal_cfg->socket_mem[i];
1582
1583         return 0;
1584 }
1585
1586 int
1587 eal_check_common_options(struct internal_config *internal_cfg)
1588 {
1589         struct rte_config *cfg = rte_eal_get_configuration();
1590
1591         if (cfg->lcore_role[cfg->master_lcore] != ROLE_RTE) {
1592                 RTE_LOG(ERR, EAL, "Master lcore is not enabled for DPDK\n");
1593                 return -1;
1594         }
1595
1596         if (internal_cfg->process_type == RTE_PROC_INVALID) {
1597                 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
1598                 return -1;
1599         }
1600         if (internal_cfg->hugefile_prefix != NULL &&
1601                         strlen(internal_cfg->hugefile_prefix) < 1) {
1602                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_FILE_PREFIX " option\n");
1603                 return -1;
1604         }
1605         if (internal_cfg->hugepage_dir != NULL &&
1606                         strlen(internal_cfg->hugepage_dir) < 1) {
1607                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_HUGE_DIR" option\n");
1608                 return -1;
1609         }
1610         if (internal_cfg->user_mbuf_pool_ops_name != NULL &&
1611                         strlen(internal_cfg->user_mbuf_pool_ops_name) < 1) {
1612                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_MBUF_POOL_OPS_NAME" option\n");
1613                 return -1;
1614         }
1615         if (index(eal_get_hugefile_prefix(), '%') != NULL) {
1616                 RTE_LOG(ERR, EAL, "Invalid char, '%%', in --"OPT_FILE_PREFIX" "
1617                         "option\n");
1618                 return -1;
1619         }
1620         if (mem_parsed && internal_cfg->force_sockets == 1) {
1621                 RTE_LOG(ERR, EAL, "Options -m and --"OPT_SOCKET_MEM" cannot "
1622                         "be specified at the same time\n");
1623                 return -1;
1624         }
1625         if (internal_cfg->no_hugetlbfs && internal_cfg->force_sockets == 1) {
1626                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_MEM" cannot "
1627                         "be specified together with --"OPT_NO_HUGE"\n");
1628                 return -1;
1629         }
1630         if (internal_cfg->no_hugetlbfs && internal_cfg->hugepage_unlink &&
1631                         !internal_cfg->in_memory) {
1632                 RTE_LOG(ERR, EAL, "Option --"OPT_HUGE_UNLINK" cannot "
1633                         "be specified together with --"OPT_NO_HUGE"\n");
1634                 return -1;
1635         }
1636         if (internal_config.force_socket_limits && internal_config.legacy_mem) {
1637                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_LIMIT
1638                         " is only supported in non-legacy memory mode\n");
1639         }
1640         if (internal_cfg->single_file_segments &&
1641                         internal_cfg->hugepage_unlink &&
1642                         !internal_cfg->in_memory) {
1643                 RTE_LOG(ERR, EAL, "Option --"OPT_SINGLE_FILE_SEGMENTS" is "
1644                         "not compatible with --"OPT_HUGE_UNLINK"\n");
1645                 return -1;
1646         }
1647         if (internal_cfg->legacy_mem &&
1648                         internal_cfg->in_memory) {
1649                 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
1650                                 "with --"OPT_IN_MEMORY"\n");
1651                 return -1;
1652         }
1653         if (internal_cfg->legacy_mem && internal_cfg->match_allocations) {
1654                 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
1655                                 "with --"OPT_MATCH_ALLOCATIONS"\n");
1656                 return -1;
1657         }
1658         if (internal_cfg->no_hugetlbfs && internal_cfg->match_allocations) {
1659                 RTE_LOG(ERR, EAL, "Option --"OPT_NO_HUGE" is not compatible "
1660                                 "with --"OPT_MATCH_ALLOCATIONS"\n");
1661                 return -1;
1662         }
1663         if (internal_cfg->legacy_mem && internal_cfg->memory == 0) {
1664                 RTE_LOG(NOTICE, EAL, "Static memory layout is selected, "
1665                         "amount of reserved memory can be adjusted with "
1666                         "-m or --"OPT_SOCKET_MEM"\n");
1667         }
1668
1669         return 0;
1670 }
1671
1672 void
1673 eal_common_usage(void)
1674 {
1675         printf("[options]\n\n"
1676                "EAL common options:\n"
1677                "  -c COREMASK         Hexadecimal bitmask of cores to run on\n"
1678                "  -l CORELIST         List of cores to run on\n"
1679                "                      The argument format is <c1>[-c2][,c3[-c4],...]\n"
1680                "                      where c1, c2, etc are core indexes between 0 and %d\n"
1681                "  --"OPT_LCORES" COREMAP    Map lcore set to physical cpu set\n"
1682                "                      The argument format is\n"
1683                "                            '<lcores[@cpus]>[<,lcores[@cpus]>...]'\n"
1684                "                      lcores and cpus list are grouped by '(' and ')'\n"
1685                "                      Within the group, '-' is used for range separator,\n"
1686                "                      ',' is used for single number separator.\n"
1687                "                      '( )' can be omitted for single element group,\n"
1688                "                      '@' can be omitted if cpus and lcores have the same value\n"
1689                "  -s SERVICE COREMASK Hexadecimal bitmask of cores to be used as service cores\n"
1690                "  --"OPT_MASTER_LCORE" ID   Core ID that is used as master\n"
1691                "  --"OPT_MBUF_POOL_OPS_NAME" Pool ops name for mbuf to use\n"
1692                "  -n CHANNELS         Number of memory channels\n"
1693                "  -m MB               Memory to allocate (see also --"OPT_SOCKET_MEM")\n"
1694                "  -r RANKS            Force number of memory ranks (don't detect)\n"
1695                "  -b, --"OPT_PCI_BLACKLIST" Add a PCI device in black list.\n"
1696                "                      Prevent EAL from using this PCI device. The argument\n"
1697                "                      format is <domain:bus:devid.func>.\n"
1698                "  -w, --"OPT_PCI_WHITELIST" Add a PCI device in white list.\n"
1699                "                      Only use the specified PCI devices. The argument format\n"
1700                "                      is <[domain:]bus:devid.func>. This option can be present\n"
1701                "                      several times (once per device).\n"
1702                "                      [NOTE: PCI whitelist cannot be used with -b option]\n"
1703                "  --"OPT_VDEV"              Add a virtual device.\n"
1704                "                      The argument format is <driver><id>[,key=val,...]\n"
1705                "                      (ex: --vdev=net_pcap0,iface=eth2).\n"
1706                "  --"OPT_IOVA_MODE"   Set IOVA mode. 'pa' for IOVA_PA\n"
1707                "                      'va' for IOVA_VA\n"
1708                "  -d LIB.so|DIR       Add a driver or driver directory\n"
1709                "                      (can be used multiple times)\n"
1710                "  --"OPT_VMWARE_TSC_MAP"    Use VMware TSC map instead of native RDTSC\n"
1711                "  --"OPT_PROC_TYPE"         Type of this process (primary|secondary|auto)\n"
1712 #ifndef RTE_EXEC_ENV_WINDOWS
1713                "  --"OPT_SYSLOG"            Set syslog facility\n"
1714 #endif
1715                "  --"OPT_LOG_LEVEL"=<int>   Set global log level\n"
1716                "  --"OPT_LOG_LEVEL"=<type-match>:<int>\n"
1717                "                      Set specific log level\n"
1718                "  --"OPT_TRACE"=<regex-match>\n"
1719                "                      Enable trace based on regular expression trace name.\n"
1720                "                      By default, the trace is disabled.\n"
1721                "                      User must specify this option to enable trace.\n"
1722                "  --"OPT_TRACE_DIR"=<directory path>\n"
1723                "                      Specify trace directory for trace output.\n"
1724                "                      By default, trace output will created at\n"
1725                "                      $HOME directory and parameter must be\n"
1726                "                      specified once only.\n"
1727                "  -v                  Display version information on startup\n"
1728                "  -h, --help          This help\n"
1729                "  --"OPT_IN_MEMORY"   Operate entirely in memory. This will\n"
1730                "                      disable secondary process support\n"
1731                "  --"OPT_BASE_VIRTADDR"     Base virtual address\n"
1732                "\nEAL options for DEBUG use only:\n"
1733                "  --"OPT_HUGE_UNLINK"       Unlink hugepage files after init\n"
1734                "  --"OPT_NO_HUGE"           Use malloc instead of hugetlbfs\n"
1735                "  --"OPT_NO_PCI"            Disable PCI\n"
1736                "  --"OPT_NO_HPET"           Disable HPET\n"
1737                "  --"OPT_NO_SHCONF"         No shared config (mmap'd files)\n"
1738                "\n", RTE_MAX_LCORE);
1739         rte_option_usage();
1740 }