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