lib/librte_eal/common/eal_common_options.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2014 Intel Corporation.
   3  * Copyright(c) 2014 6WIND S.A.
   4  */
   5
   6 #include <stdlib.h>
   7 #include <unistd.h>
   8 #include <string.h>
   9 #include <syslog.h>
  10 #include <ctype.h>
  11 #include <limits.h>
  12 #include <errno.h>
  13 #include <getopt.h>
  14 #include <dlfcn.h>
  15 #include <sys/types.h>
  16 #include <sys/stat.h>
  17 #include <dirent.h>
  18
  19 #include <rte_string_fns.h>
  20 #include <rte_eal.h>
  21 #include <rte_log.h>
  22 #include <rte_lcore.h>
  23 #include <rte_memory.h>
  24 #include <rte_tailq.h>
  25 #include <rte_version.h>
  26 #include <rte_devargs.h>
  27 #include <rte_memcpy.h>
  28
  29 #include "eal_internal_cfg.h"
  30 #include "eal_options.h"
  31 #include "eal_filesystem.h"
  32 #include "eal_private.h"
  33
  34 #define BITS_PER_HEX 4
  35 #define LCORE_OPT_LST 1
  36 #define LCORE_OPT_MSK 2
  37 #define LCORE_OPT_MAP 3
  38
  39 const char
  40 eal_short_options[] =
  41         "b:" /* pci-blacklist */
  42         "c:" /* coremask */
  43         "s:" /* service coremask */
  44         "d:" /* driver */
  45         "h"  /* help */
  46         "l:" /* corelist */
  47         "S:" /* service corelist */
  48         "m:" /* memory size */
  49         "n:" /* memory channels */
  50         "r:" /* memory ranks */
  51         "v"  /* version */
  52         "w:" /* pci-whitelist */
  53         ;
  54
  55 const struct option
  56 eal_long_options[] = {
  57         {OPT_BASE_VIRTADDR,     1, NULL, OPT_BASE_VIRTADDR_NUM    },
  58         {OPT_CREATE_UIO_DEV,    0, NULL, OPT_CREATE_UIO_DEV_NUM   },
  59         {OPT_FILE_PREFIX,       1, NULL, OPT_FILE_PREFIX_NUM      },
  60         {OPT_HELP,              0, NULL, OPT_HELP_NUM             },
  61         {OPT_HUGE_DIR,          1, NULL, OPT_HUGE_DIR_NUM         },
  62         {OPT_HUGE_UNLINK,       0, NULL, OPT_HUGE_UNLINK_NUM      },
  63         {OPT_IOVA_MODE,         1, NULL, OPT_IOVA_MODE_NUM        },
  64         {OPT_LCORES,            1, NULL, OPT_LCORES_NUM           },
  65         {OPT_LOG_LEVEL,         1, NULL, OPT_LOG_LEVEL_NUM        },
  66         {OPT_MASTER_LCORE,      1, NULL, OPT_MASTER_LCORE_NUM     },
  67         {OPT_MBUF_POOL_OPS_NAME, 1, NULL, OPT_MBUF_POOL_OPS_NAME_NUM},
  68         {OPT_NO_HPET,           0, NULL, OPT_NO_HPET_NUM          },
  69         {OPT_NO_HUGE,           0, NULL, OPT_NO_HUGE_NUM          },
  70         {OPT_NO_PCI,            0, NULL, OPT_NO_PCI_NUM           },
  71         {OPT_NO_SHCONF,         0, NULL, OPT_NO_SHCONF_NUM        },
  72         {OPT_IN_MEMORY,         0, NULL, OPT_IN_MEMORY_NUM        },
  73         {OPT_PCI_BLACKLIST,     1, NULL, OPT_PCI_BLACKLIST_NUM    },
  74         {OPT_PCI_WHITELIST,     1, NULL, OPT_PCI_WHITELIST_NUM    },
  75         {OPT_PROC_TYPE,         1, NULL, OPT_PROC_TYPE_NUM        },
  76         {OPT_SOCKET_MEM,        1, NULL, OPT_SOCKET_MEM_NUM       },
  77         {OPT_SOCKET_LIMIT,      1, NULL, OPT_SOCKET_LIMIT_NUM     },
  78         {OPT_SYSLOG,            1, NULL, OPT_SYSLOG_NUM           },
  79         {OPT_VDEV,              1, NULL, OPT_VDEV_NUM             },
  80         {OPT_VFIO_INTR,         1, NULL, OPT_VFIO_INTR_NUM        },
  81         {OPT_VMWARE_TSC_MAP,    0, NULL, OPT_VMWARE_TSC_MAP_NUM   },
  82         {OPT_LEGACY_MEM,        0, NULL, OPT_LEGACY_MEM_NUM       },
  83         {OPT_SINGLE_FILE_SEGMENTS, 0, NULL, OPT_SINGLE_FILE_SEGMENTS_NUM},
  84         {OPT_MATCH_ALLOCATIONS, 0, NULL, OPT_MATCH_ALLOCATIONS_NUM},
  85         {0,                     0, NULL, 0                        }
  86 };
  87
  88 TAILQ_HEAD(shared_driver_list, shared_driver);
  89
  90 /* Definition for shared object drivers. */
  91 struct shared_driver {
  92         TAILQ_ENTRY(shared_driver) next;
  93
  94         char    name[PATH_MAX];
  95         void*   lib_handle;
  96 };
  97
  98 /* List of external loadable drivers */
  99 static struct shared_driver_list solib_list =
 100 TAILQ_HEAD_INITIALIZER(solib_list);
 101
 102 /* Default path of external loadable drivers */
 103 static const char *default_solib_dir = RTE_EAL_PMD_PATH;
 104
 105 /*
 106  * Stringified version of solib path used by dpdk-pmdinfo.py
 107  * Note: PLEASE DO NOT ALTER THIS without making a corresponding
 108  * change to usertools/dpdk-pmdinfo.py
 109  */
 110 static const char dpdk_solib_path[] __attribute__((used)) =
 111 "DPDK_PLUGIN_PATH=" RTE_EAL_PMD_PATH;
 112
 113 TAILQ_HEAD(device_option_list, device_option);
 114
 115 struct device_option {
 116         TAILQ_ENTRY(device_option) next;
 117
 118         enum rte_devtype type;
 119         char arg[];
 120 };
 121
 122 static struct device_option_list devopt_list =
 123 TAILQ_HEAD_INITIALIZER(devopt_list);
 124
 125 static int master_lcore_parsed;
 126 static int mem_parsed;
 127 static int core_parsed;
 128
 129 static int
 130 eal_option_device_add(enum rte_devtype type, const char *optarg)
 131 {
 132         struct device_option *devopt;
 133         size_t optlen;
 134         int ret;
 135
 136         optlen = strlen(optarg) + 1;
 137         devopt = calloc(1, sizeof(*devopt) + optlen);
 138         if (devopt == NULL) {
 139                 RTE_LOG(ERR, EAL, "Unable to allocate device option\n");
 140                 return -ENOMEM;
 141         }
 142
 143         devopt->type = type;
 144         ret = strlcpy(devopt->arg, optarg, optlen);
 145         if (ret < 0) {
 146                 RTE_LOG(ERR, EAL, "Unable to copy device option\n");
 147                 free(devopt);
 148                 return -EINVAL;
 149         }
 150         TAILQ_INSERT_TAIL(&devopt_list, devopt, next);
 151         return 0;
 152 }
 153
 154 int
 155 eal_option_device_parse(void)
 156 {
 157         struct device_option *devopt;
 158         void *tmp;
 159         int ret = 0;
 160
 161         TAILQ_FOREACH_SAFE(devopt, &devopt_list, next, tmp) {
 162                 if (ret == 0) {
 163                         ret = rte_devargs_add(devopt->type, devopt->arg);
 164                         if (ret)
 165                                 RTE_LOG(ERR, EAL, "Unable to parse device '%s'\n",
 166                                         devopt->arg);
 167                 }
 168                 TAILQ_REMOVE(&devopt_list, devopt, next);
 169                 free(devopt);
 170         }
 171         return ret;
 172 }
 173
 174 const char *
 175 eal_get_hugefile_prefix(void)
 176 {
 177         if (internal_config.hugefile_prefix != NULL)
 178                 return internal_config.hugefile_prefix;
 179         return HUGEFILE_PREFIX_DEFAULT;
 180 }
 181
 182 void
 183 eal_reset_internal_config(struct internal_config *internal_cfg)
 184 {
 185         int i;
 186
 187         internal_cfg->memory = 0;
 188         internal_cfg->force_nrank = 0;
 189         internal_cfg->force_nchannel = 0;
 190         internal_cfg->hugefile_prefix = NULL;
 191         internal_cfg->hugepage_dir = NULL;
 192         internal_cfg->force_sockets = 0;
 193         /* zero out the NUMA config */
 194         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 195                 internal_cfg->socket_mem[i] = 0;
 196         internal_cfg->force_socket_limits = 0;
 197         /* zero out the NUMA limits config */
 198         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 199                 internal_cfg->socket_limit[i] = 0;
 200         /* zero out hugedir descriptors */
 201         for (i = 0; i < MAX_HUGEPAGE_SIZES; i++) {
 202                 memset(&internal_cfg->hugepage_info[i], 0,
 203                                 sizeof(internal_cfg->hugepage_info[0]));
 204                 internal_cfg->hugepage_info[i].lock_descriptor = -1;
 205         }
 206         internal_cfg->base_virtaddr = 0;
 207
 208         internal_cfg->syslog_facility = LOG_DAEMON;
 209
 210         /* if set to NONE, interrupt mode is determined automatically */
 211         internal_cfg->vfio_intr_mode = RTE_INTR_MODE_NONE;
 212
 213 #ifdef RTE_LIBEAL_USE_HPET
 214         internal_cfg->no_hpet = 0;
 215 #else
 216         internal_cfg->no_hpet = 1;
 217 #endif
 218         internal_cfg->vmware_tsc_map = 0;
 219         internal_cfg->create_uio_dev = 0;
 220         internal_cfg->iova_mode = RTE_IOVA_DC;
 221         internal_cfg->user_mbuf_pool_ops_name = NULL;
 222         CPU_ZERO(&internal_cfg->ctrl_cpuset);
 223         internal_cfg->init_complete = 0;
 224 }
 225
 226 static int
 227 eal_plugin_add(const char *path)
 228 {
 229         struct shared_driver *solib;
 230
 231         solib = malloc(sizeof(*solib));
 232         if (solib == NULL) {
 233                 RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
 234                 return -1;
 235         }
 236         memset(solib, 0, sizeof(*solib));
 237         strlcpy(solib->name, path, PATH_MAX-1);
 238         solib->name[PATH_MAX-1] = 0;
 239         TAILQ_INSERT_TAIL(&solib_list, solib, next);
 240
 241         return 0;
 242 }
 243
 244 static int
 245 eal_plugindir_init(const char *path)
 246 {
 247         DIR *d = NULL;
 248         struct dirent *dent = NULL;
 249         char sopath[PATH_MAX];
 250
 251         if (path == NULL || *path == '\0')
 252                 return 0;
 253
 254         d = opendir(path);
 255         if (d == NULL) {
 256                 RTE_LOG(ERR, EAL, "failed to open directory %s: %s\n",
 257                         path, strerror(errno));
 258                 return -1;
 259         }
 260
 261         while ((dent = readdir(d)) != NULL) {
 262                 struct stat sb;
 263
 264                 snprintf(sopath, sizeof(sopath), "%s/%s", path, dent->d_name);
 265
 266                 if (!(stat(sopath, &sb) == 0 && S_ISREG(sb.st_mode)))
 267                         continue;
 268
 269                 if (eal_plugin_add(sopath) == -1)
 270                         break;
 271         }
 272
 273         closedir(d);
 274         /* XXX this ignores failures from readdir() itself */
 275         return (dent == NULL) ? 0 : -1;
 276 }
 277
 278 int
 279 eal_plugins_init(void)
 280 {
 281         struct shared_driver *solib = NULL;
 282         struct stat sb;
 283
 284         if (*default_solib_dir != '\0' && stat(default_solib_dir, &sb) == 0 &&
 285                                 S_ISDIR(sb.st_mode))
 286                 eal_plugin_add(default_solib_dir);
 287
 288         TAILQ_FOREACH(solib, &solib_list, next) {
 289
 290                 if (stat(solib->name, &sb) == 0 && S_ISDIR(sb.st_mode)) {
 291                         if (eal_plugindir_init(solib->name) == -1) {
 292                                 RTE_LOG(ERR, EAL,
 293                                         "Cannot init plugin directory %s\n",
 294                                         solib->name);
 295                                 return -1;
 296                         }
 297                 } else {
 298                         RTE_LOG(DEBUG, EAL, "open shared lib %s\n",
 299                                 solib->name);
 300                         solib->lib_handle = dlopen(solib->name, RTLD_NOW);
 301                         if (solib->lib_handle == NULL) {
 302                                 RTE_LOG(ERR, EAL, "%s\n", dlerror());
 303                                 return -1;
 304                         }
 305                 }
 306
 307         }
 308         return 0;
 309 }
 310
 311 /*
 312  * Parse the coremask given as argument (hexadecimal string) and fill
 313  * the global configuration (core role and core count) with the parsed
 314  * value.
 315  */
 316 static int xdigit2val(unsigned char c)
 317 {
 318         int val;
 319
 320         if (isdigit(c))
 321                 val = c - '0';
 322         else if (isupper(c))
 323                 val = c - 'A' + 10;
 324         else
 325                 val = c - 'a' + 10;
 326         return val;
 327 }
 328
 329 static int
 330 eal_parse_service_coremask(const char *coremask)
 331 {
 332         struct rte_config *cfg = rte_eal_get_configuration();
 333         int i, j, idx = 0;
 334         unsigned int count = 0;
 335         char c;
 336         int val;
 337         uint32_t taken_lcore_count = 0;
 338
 339         if (coremask == NULL)
 340                 return -1;
 341         /* Remove all blank characters ahead and after .
 342          * Remove 0x/0X if exists.
 343          */
 344         while (isblank(*coremask))
 345                 coremask++;
 346         if (coremask[0] == '0' && ((coremask[1] == 'x')
 347                 || (coremask[1] == 'X')))
 348                 coremask += 2;
 349         i = strlen(coremask);
 350         while ((i > 0) && isblank(coremask[i - 1]))
 351                 i--;
 352
 353         if (i == 0)
 354                 return -1;
 355
 356         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 357                 c = coremask[i];
 358                 if (isxdigit(c) == 0) {
 359                         /* invalid characters */
 360                         return -1;
 361                 }
 362                 val = xdigit2val(c);
 363                 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE;
 364                                 j++, idx++) {
 365                         if ((1 << j) & val) {
 366                                 /* handle master lcore already parsed */
 367                                 uint32_t lcore = idx;
 368                                 if (master_lcore_parsed &&
 369                                                 cfg->master_lcore == lcore) {
 370                                         RTE_LOG(ERR, EAL,
 371                                                 "lcore %u is master lcore, cannot use as service core\n",
 372                                                 idx);
 373                                         return -1;
 374                                 }
 375
 376                                 if (eal_cpu_detected(idx) == 0) {
 377                                         RTE_LOG(ERR, EAL,
 378                                                 "lcore %u unavailable\n", idx);
 379                                         return -1;
 380                                 }
 381
 382                                 if (cfg->lcore_role[idx] == ROLE_RTE)
 383                                         taken_lcore_count++;
 384
 385                                 lcore_config[idx].core_role = ROLE_SERVICE;
 386                                 count++;
 387                         }
 388                 }
 389         }
 390
 391         for (; i >= 0; i--)
 392                 if (coremask[i] != '0')
 393                         return -1;
 394
 395         for (; idx < RTE_MAX_LCORE; idx++)
 396                 lcore_config[idx].core_index = -1;
 397
 398         if (count == 0)
 399                 return -1;
 400
 401         if (core_parsed && taken_lcore_count != count) {
 402                 RTE_LOG(WARNING, EAL,
 403                         "Not all service cores are in the coremask. "
 404                         "Please ensure -c or -l includes service cores\n");
 405         }
 406
 407         cfg->service_lcore_count = count;
 408         return 0;
 409 }
 410
 411 static int
 412 eal_service_cores_parsed(void)
 413 {
 414         int idx;
 415         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 416                 if (lcore_config[idx].core_role == ROLE_SERVICE)
 417                         return 1;
 418         }
 419         return 0;
 420 }
 421
 422 static int
 423 update_lcore_config(int *cores)
 424 {
 425         struct rte_config *cfg = rte_eal_get_configuration();
 426         unsigned int count = 0;
 427         unsigned int i;
 428         int ret = 0;
 429
 430         for (i = 0; i < RTE_MAX_LCORE; i++) {
 431                 if (cores[i] != -1) {
 432                         if (eal_cpu_detected(i) == 0) {
 433                                 RTE_LOG(ERR, EAL, "lcore %u unavailable\n", i);
 434                                 ret = -1;
 435                                 continue;
 436                         }
 437                         cfg->lcore_role[i] = ROLE_RTE;
 438                         count++;
 439                 } else {
 440                         cfg->lcore_role[i] = ROLE_OFF;
 441                 }
 442                 lcore_config[i].core_index = cores[i];
 443         }
 444         if (!ret)
 445                 cfg->lcore_count = count;
 446         return ret;
 447 }
 448
 449 static int
 450 eal_parse_coremask(const char *coremask, int *cores)
 451 {
 452         unsigned count = 0;
 453         int i, j, idx;
 454         int val;
 455         char c;
 456
 457         for (idx = 0; idx < RTE_MAX_LCORE; idx++)
 458                 cores[idx] = -1;
 459         idx = 0;
 460
 461         /* Remove all blank characters ahead and after .
 462          * Remove 0x/0X if exists.
 463          */
 464         while (isblank(*coremask))
 465                 coremask++;
 466         if (coremask[0] == '0' && ((coremask[1] == 'x')
 467                 || (coremask[1] == 'X')))
 468                 coremask += 2;
 469         i = strlen(coremask);
 470         while ((i > 0) && isblank(coremask[i - 1]))
 471                 i--;
 472         if (i == 0)
 473                 return -1;
 474
 475         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 476                 c = coremask[i];
 477                 if (isxdigit(c) == 0) {
 478                         /* invalid characters */
 479                         return -1;
 480                 }
 481                 val = xdigit2val(c);
 482                 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++)
 483                 {
 484                         if ((1 << j) & val) {
 485                                 cores[idx] = count;
 486                                 count++;
 487                         }
 488                 }
 489         }
 490         for (; i >= 0; i--)
 491                 if (coremask[i] != '0')
 492                         return -1;
 493         if (count == 0)
 494                 return -1;
 495         return 0;
 496 }
 497
 498 static int
 499 eal_parse_service_corelist(const char *corelist)
 500 {
 501         struct rte_config *cfg = rte_eal_get_configuration();
 502         int i, idx = 0;
 503         unsigned count = 0;
 504         char *end = NULL;
 505         int min, max;
 506         uint32_t taken_lcore_count = 0;
 507
 508         if (corelist == NULL)
 509                 return -1;
 510
 511         /* Remove all blank characters ahead and after */
 512         while (isblank(*corelist))
 513                 corelist++;
 514         i = strlen(corelist);
 515         while ((i > 0) && isblank(corelist[i - 1]))
 516                 i--;
 517
 518         /* Get list of cores */
 519         min = RTE_MAX_LCORE;
 520         do {
 521                 while (isblank(*corelist))
 522                         corelist++;
 523                 if (*corelist == '\0')
 524                         return -1;
 525                 errno = 0;
 526                 idx = strtoul(corelist, &end, 10);
 527                 if (errno || end == NULL)
 528                         return -1;
 529                 while (isblank(*end))
 530                         end++;
 531                 if (*end == '-') {
 532                         min = idx;
 533                 } else if ((*end == ',') || (*end == '\0')) {
 534                         max = idx;
 535                         if (min == RTE_MAX_LCORE)
 536                                 min = idx;
 537                         for (idx = min; idx <= max; idx++) {
 538                                 if (cfg->lcore_role[idx] != ROLE_SERVICE) {
 539                                         /* handle master lcore already parsed */
 540                                         uint32_t lcore = idx;
 541                                         if (cfg->master_lcore == lcore &&
 542                                                         master_lcore_parsed) {
 543                                                 RTE_LOG(ERR, EAL,
 544                                                         "Error: lcore %u is master lcore, cannot use as service core\n",
 545                                                         idx);
 546                                                 return -1;
 547                                         }
 548                                         if (cfg->lcore_role[idx] == ROLE_RTE)
 549                                                 taken_lcore_count++;
 550
 551                                         lcore_config[idx].core_role =
 552                                                         ROLE_SERVICE;
 553                                         count++;
 554                                 }
 555                         }
 556                         min = RTE_MAX_LCORE;
 557                 } else
 558                         return -1;
 559                 corelist = end + 1;
 560         } while (*end != '\0');
 561
 562         if (count == 0)
 563                 return -1;
 564
 565         if (core_parsed && taken_lcore_count != count) {
 566                 RTE_LOG(WARNING, EAL,
 567                         "Not all service cores were in the coremask. "
 568                         "Please ensure -c or -l includes service cores\n");
 569         }
 570
 571         return 0;
 572 }
 573
 574 static int
 575 eal_parse_corelist(const char *corelist, int *cores)
 576 {
 577         unsigned count = 0;
 578         char *end = NULL;
 579         int min, max;
 580         int idx;
 581
 582         for (idx = 0; idx < RTE_MAX_LCORE; idx++)
 583                 cores[idx] = -1;
 584
 585         /* Remove all blank characters ahead */
 586         while (isblank(*corelist))
 587                 corelist++;
 588
 589         /* Get list of cores */
 590         min = RTE_MAX_LCORE;
 591         do {
 592                 while (isblank(*corelist))
 593                         corelist++;
 594                 if (*corelist == '\0')
 595                         return -1;
 596                 errno = 0;
 597                 idx = strtol(corelist, &end, 10);
 598                 if (errno || end == NULL)
 599                         return -1;
 600                 if (idx < 0 || idx >= RTE_MAX_LCORE)
 601                         return -1;
 602                 while (isblank(*end))
 603                         end++;
 604                 if (*end == '-') {
 605                         min = idx;
 606                 } else if ((*end == ',') || (*end == '\0')) {
 607                         max = idx;
 608                         if (min == RTE_MAX_LCORE)
 609                                 min = idx;
 610                         for (idx = min; idx <= max; idx++) {
 611                                 if (cores[idx] == -1) {
 612                                         cores[idx] = count;
 613                                         count++;
 614                                 }
 615                         }
 616                         min = RTE_MAX_LCORE;
 617                 } else
 618                         return -1;
 619                 corelist = end + 1;
 620         } while (*end != '\0');
 621
 622         if (count == 0)
 623                 return -1;
 624         return 0;
 625 }
 626
 627 /* Changes the lcore id of the master thread */
 628 static int
 629 eal_parse_master_lcore(const char *arg)
 630 {
 631         char *parsing_end;
 632         struct rte_config *cfg = rte_eal_get_configuration();
 633
 634         errno = 0;
 635         cfg->master_lcore = (uint32_t) strtol(arg, &parsing_end, 0);
 636         if (errno || parsing_end[0] != 0)
 637                 return -1;
 638         if (cfg->master_lcore >= RTE_MAX_LCORE)
 639                 return -1;
 640         master_lcore_parsed = 1;
 641
 642         /* ensure master core is not used as service core */
 643         if (lcore_config[cfg->master_lcore].core_role == ROLE_SERVICE) {
 644                 RTE_LOG(ERR, EAL,
 645                         "Error: Master lcore is used as a service core\n");
 646                 return -1;
 647         }
 648
 649         return 0;
 650 }
 651
 652 /*
 653  * Parse elem, the elem could be single number/range or '(' ')' group
 654  * 1) A single number elem, it's just a simple digit. e.g. 9
 655  * 2) A single range elem, two digits with a '-' between. e.g. 2-6
 656  * 3) A group elem, combines multiple 1) or 2) with '( )'. e.g (0,2-4,6)
 657  *    Within group elem, '-' used for a range separator;
 658  *                       ',' used for a single number.
 659  */
 660 static int
 661 eal_parse_set(const char *input, rte_cpuset_t *set)
 662 {
 663         unsigned idx;
 664         const char *str = input;
 665         char *end = NULL;
 666         unsigned min, max;
 667
 668         CPU_ZERO(set);
 669
 670         while (isblank(*str))
 671                 str++;
 672
 673         /* only digit or left bracket is qualify for start point */
 674         if ((!isdigit(*str) && *str != '(') || *str == '\0')
 675                 return -1;
 676
 677         /* process single number or single range of number */
 678         if (*str != '(') {
 679                 errno = 0;
 680                 idx = strtoul(str, &end, 10);
 681                 if (errno || end == NULL || idx >= CPU_SETSIZE)
 682                         return -1;
 683                 else {
 684                         while (isblank(*end))
 685                                 end++;
 686
 687                         min = idx;
 688                         max = idx;
 689                         if (*end == '-') {
 690                                 /* process single <number>-<number> */
 691                                 end++;
 692                                 while (isblank(*end))
 693                                         end++;
 694                                 if (!isdigit(*end))
 695                                         return -1;
 696
 697                                 errno = 0;
 698                                 idx = strtoul(end, &end, 10);
 699                                 if (errno || end == NULL || idx >= CPU_SETSIZE)
 700                                         return -1;
 701                                 max = idx;
 702                                 while (isblank(*end))
 703                                         end++;
 704                                 if (*end != ',' && *end != '\0')
 705                                         return -1;
 706                         }
 707
 708                         if (*end != ',' && *end != '\0' &&
 709                             *end != '@')
 710                                 return -1;
 711
 712                         for (idx = RTE_MIN(min, max);
 713                              idx <= RTE_MAX(min, max); idx++)
 714                                 CPU_SET(idx, set);
 715
 716                         return end - input;
 717                 }
 718         }
 719
 720         /* process set within bracket */
 721         str++;
 722         while (isblank(*str))
 723                 str++;
 724         if (*str == '\0')
 725                 return -1;
 726
 727         min = RTE_MAX_LCORE;
 728         do {
 729
 730                 /* go ahead to the first digit */
 731                 while (isblank(*str))
 732                         str++;
 733                 if (!isdigit(*str))
 734                         return -1;
 735
 736                 /* get the digit value */
 737                 errno = 0;
 738                 idx = strtoul(str, &end, 10);
 739                 if (errno || end == NULL || idx >= CPU_SETSIZE)
 740                         return -1;
 741
 742                 /* go ahead to separator '-',',' and ')' */
 743                 while (isblank(*end))
 744                         end++;
 745                 if (*end == '-') {
 746                         if (min == RTE_MAX_LCORE)
 747                                 min = idx;
 748                         else /* avoid continuous '-' */
 749                                 return -1;
 750                 } else if ((*end == ',') || (*end == ')')) {
 751                         max = idx;
 752                         if (min == RTE_MAX_LCORE)
 753                                 min = idx;
 754                         for (idx = RTE_MIN(min, max);
 755                              idx <= RTE_MAX(min, max); idx++)
 756                                 CPU_SET(idx, set);
 757
 758                         min = RTE_MAX_LCORE;
 759                 } else
 760                         return -1;
 761
 762                 str = end + 1;
 763         } while (*end != '\0' && *end != ')');
 764
 765         /*
 766          * to avoid failure that tail blank makes end character check fail
 767          * in eal_parse_lcores( )
 768          */
 769         while (isblank(*str))
 770                 str++;
 771
 772         return str - input;
 773 }
 774
 775 static int
 776 check_cpuset(rte_cpuset_t *set)
 777 {
 778         unsigned int idx;
 779
 780         for (idx = 0; idx < CPU_SETSIZE; idx++) {
 781                 if (!CPU_ISSET(idx, set))
 782                         continue;
 783
 784                 if (eal_cpu_detected(idx) == 0) {
 785                         RTE_LOG(ERR, EAL, "core %u "
 786                                 "unavailable\n", idx);
 787                         return -1;
 788                 }
 789         }
 790         return 0;
 791 }
 792
 793 /*
 794  * The format pattern: --lcores='<lcores[@cpus]>[<,lcores[@cpus]>...]'
 795  * lcores, cpus could be a single digit/range or a group.
 796  * '(' and ')' are necessary if it's a group.
 797  * If not supply '@cpus', the value of cpus uses the same as lcores.
 798  * e.g. '1,2@(5-7),(3-5)@(0,2),(0,6),7-8' means start 9 EAL thread as below
 799  *   lcore 0 runs on cpuset 0x41 (cpu 0,6)
 800  *   lcore 1 runs on cpuset 0x2 (cpu 1)
 801  *   lcore 2 runs on cpuset 0xe0 (cpu 5,6,7)
 802  *   lcore 3,4,5 runs on cpuset 0x5 (cpu 0,2)
 803  *   lcore 6 runs on cpuset 0x41 (cpu 0,6)
 804  *   lcore 7 runs on cpuset 0x80 (cpu 7)
 805  *   lcore 8 runs on cpuset 0x100 (cpu 8)
 806  */
 807 static int
 808 eal_parse_lcores(const char *lcores)
 809 {
 810         struct rte_config *cfg = rte_eal_get_configuration();
 811         rte_cpuset_t lcore_set;
 812         unsigned int set_count;
 813         unsigned idx = 0;
 814         unsigned count = 0;
 815         const char *lcore_start = NULL;
 816         const char *end = NULL;
 817         int offset;
 818         rte_cpuset_t cpuset;
 819         int lflags;
 820         int ret = -1;
 821
 822         if (lcores == NULL)
 823                 return -1;
 824
 825         /* Remove all blank characters ahead and after */
 826         while (isblank(*lcores))
 827                 lcores++;
 828
 829         CPU_ZERO(&cpuset);
 830
 831         /* Reset lcore config */
 832         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 833                 cfg->lcore_role[idx] = ROLE_OFF;
 834                 lcore_config[idx].core_index = -1;
 835                 CPU_ZERO(&lcore_config[idx].cpuset);
 836         }
 837
 838         /* Get list of cores */
 839         do {
 840                 while (isblank(*lcores))
 841                         lcores++;
 842                 if (*lcores == '\0')
 843                         goto err;
 844
 845                 lflags = 0;
 846
 847                 /* record lcore_set start point */
 848                 lcore_start = lcores;
 849
 850                 /* go across a complete bracket */
 851                 if (*lcore_start == '(') {
 852                         lcores += strcspn(lcores, ")");
 853                         if (*lcores++ == '\0')
 854                                 goto err;
 855                 }
 856
 857                 /* scan the separator '@', ','(next) or '\0'(finish) */
 858                 lcores += strcspn(lcores, "@,");
 859
 860                 if (*lcores == '@') {
 861                         /* explicit assign cpuset and update the end cursor */
 862                         offset = eal_parse_set(lcores + 1, &cpuset);
 863                         if (offset < 0)
 864                                 goto err;
 865                         end = lcores + 1 + offset;
 866                 } else { /* ',' or '\0' */
 867                         /* haven't given cpuset, current loop done */
 868                         end = lcores;
 869
 870                         /* go back to check <number>-<number> */
 871                         offset = strcspn(lcore_start, "(-");
 872                         if (offset < (end - lcore_start) &&
 873                             *(lcore_start + offset) != '(')
 874                                 lflags = 1;
 875                 }
 876
 877                 if (*end != ',' && *end != '\0')
 878                         goto err;
 879
 880                 /* parse lcore_set from start point */
 881                 if (eal_parse_set(lcore_start, &lcore_set) < 0)
 882                         goto err;
 883
 884                 /* without '@', by default using lcore_set as cpuset */
 885                 if (*lcores != '@')
 886                         rte_memcpy(&cpuset, &lcore_set, sizeof(cpuset));
 887
 888                 set_count = CPU_COUNT(&lcore_set);
 889                 /* start to update lcore_set */
 890                 for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 891                         if (!CPU_ISSET(idx, &lcore_set))
 892                                 continue;
 893                         set_count--;
 894
 895                         if (cfg->lcore_role[idx] != ROLE_RTE) {
 896                                 lcore_config[idx].core_index = count;
 897                                 cfg->lcore_role[idx] = ROLE_RTE;
 898                                 count++;
 899                         }
 900
 901                         if (lflags) {
 902                                 CPU_ZERO(&cpuset);
 903                                 CPU_SET(idx, &cpuset);
 904                         }
 905
 906                         if (check_cpuset(&cpuset) < 0)
 907                                 goto err;
 908                         rte_memcpy(&lcore_config[idx].cpuset, &cpuset,
 909                                    sizeof(rte_cpuset_t));
 910                 }
 911
 912                 /* some cores from the lcore_set can't be handled by EAL */
 913                 if (set_count != 0)
 914                         goto err;
 915
 916                 lcores = end + 1;
 917         } while (*end != '\0');
 918
 919         if (count == 0)
 920                 goto err;
 921
 922         cfg->lcore_count = count;
 923         ret = 0;
 924
 925 err:
 926
 927         return ret;
 928 }
 929
 930 static int
 931 eal_parse_syslog(const char *facility, struct internal_config *conf)
 932 {
 933         int i;
 934         static const struct {
 935                 const char *name;
 936                 int value;
 937         } map[] = {
 938                 { "auth", LOG_AUTH },
 939                 { "cron", LOG_CRON },
 940                 { "daemon", LOG_DAEMON },
 941                 { "ftp", LOG_FTP },
 942                 { "kern", LOG_KERN },
 943                 { "lpr", LOG_LPR },
 944                 { "mail", LOG_MAIL },
 945                 { "news", LOG_NEWS },
 946                 { "syslog", LOG_SYSLOG },
 947                 { "user", LOG_USER },
 948                 { "uucp", LOG_UUCP },
 949                 { "local0", LOG_LOCAL0 },
 950                 { "local1", LOG_LOCAL1 },
 951                 { "local2", LOG_LOCAL2 },
 952                 { "local3", LOG_LOCAL3 },
 953                 { "local4", LOG_LOCAL4 },
 954                 { "local5", LOG_LOCAL5 },
 955                 { "local6", LOG_LOCAL6 },
 956                 { "local7", LOG_LOCAL7 },
 957                 { NULL, 0 }
 958         };
 959
 960         for (i = 0; map[i].name; i++) {
 961                 if (!strcmp(facility, map[i].name)) {
 962                         conf->syslog_facility = map[i].value;
 963                         return 0;
 964                 }
 965         }
 966         return -1;
 967 }
 968
 969 static int
 970 eal_parse_log_priority(const char *level)
 971 {
 972         static const char * const levels[] = {
 973                 [RTE_LOG_EMERG]   = "emergency",
 974                 [RTE_LOG_ALERT]   = "alert",
 975                 [RTE_LOG_CRIT]    = "critical",
 976                 [RTE_LOG_ERR]     = "error",
 977                 [RTE_LOG_WARNING] = "warning",
 978                 [RTE_LOG_NOTICE]  = "notice",
 979                 [RTE_LOG_INFO]    = "info",
 980                 [RTE_LOG_DEBUG]   = "debug",
 981         };
 982         size_t len = strlen(level);
 983         unsigned long tmp;
 984         char *end;
 985         unsigned int i;
 986
 987         if (len == 0)
 988                 return -1;
 989
 990         /* look for named values, skip 0 which is not a valid level */
 991         for (i = 1; i < RTE_DIM(levels); i++) {
 992                 if (strncmp(levels[i], level, len) == 0)
 993                         return i;
 994         }
 995
 996         /* not a string, maybe it is numeric */
 997         errno = 0;
 998         tmp = strtoul(level, &end, 0);
 999
1000         /* check for errors */
1001         if (errno != 0 || end == NULL || *end != '\0' ||
1002             tmp >= UINT32_MAX)
1003                 return -1;
1004
1005         return tmp;
1006 }
1007
1008 static int
1009 eal_parse_log_level(const char *arg)
1010 {
1011         const char *pattern = NULL;
1012         const char *regex = NULL;
1013         char *str, *level;
1014         int priority;
1015
1016         str = strdup(arg);
1017         if (str == NULL)
1018                 return -1;
1019
1020         if ((level = strchr(str, ','))) {
1021                 regex = str;
1022                 *level++ = '\0';
1023         } else if ((level = strchr(str, ':'))) {
1024                 pattern = str;
1025                 *level++ = '\0';
1026         } else {
1027                 level = str;
1028         }
1029
1030         priority = eal_parse_log_priority(level);
1031         if (priority < 0) {
1032                 fprintf(stderr, "invalid log priority: %s\n", level);
1033                 goto fail;
1034         }
1035
1036         if (regex) {
1037                 if (rte_log_set_level_regexp(regex, priority) < 0) {
1038                         fprintf(stderr, "cannot set log level %s,%d\n",
1039                                 pattern, priority);
1040                         goto fail;
1041                 }
1042                 if (rte_log_save_regexp(regex, priority) < 0)
1043                         goto fail;
1044         } else if (pattern) {
1045                 if (rte_log_set_level_pattern(pattern, priority) < 0) {
1046                         fprintf(stderr, "cannot set log level %s:%d\n",
1047                                 pattern, priority);
1048                         goto fail;
1049                 }
1050                 if (rte_log_save_pattern(pattern, priority) < 0)
1051                         goto fail;
1052         } else {
1053                 rte_log_set_global_level(priority);
1054         }
1055
1056         free(str);
1057         return 0;
1058
1059 fail:
1060         free(str);
1061         return -1;
1062 }
1063
1064 static enum rte_proc_type_t
1065 eal_parse_proc_type(const char *arg)
1066 {
1067         if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
1068                 return RTE_PROC_PRIMARY;
1069         if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
1070                 return RTE_PROC_SECONDARY;
1071         if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
1072                 return RTE_PROC_AUTO;
1073
1074         return RTE_PROC_INVALID;
1075 }
1076
1077 static int
1078 eal_parse_iova_mode(const char *name)
1079 {
1080         int mode;
1081
1082         if (name == NULL)
1083                 return -1;
1084
1085         if (!strcmp("pa", name))
1086                 mode = RTE_IOVA_PA;
1087         else if (!strcmp("va", name))
1088                 mode = RTE_IOVA_VA;
1089         else
1090                 return -1;
1091
1092         internal_config.iova_mode = mode;
1093         return 0;
1094 }
1095
1096 static int
1097 eal_parse_base_virtaddr(const char *arg)
1098 {
1099         char *end;
1100         uint64_t addr;
1101
1102         errno = 0;
1103         addr = strtoull(arg, &end, 16);
1104
1105         /* check for errors */
1106         if ((errno != 0) || (arg[0] == '\0') || end == NULL || (*end != '\0'))
1107                 return -1;
1108
1109         /* make sure we don't exceed 32-bit boundary on 32-bit target */
1110 #ifndef RTE_ARCH_64
1111         if (addr >= UINTPTR_MAX)
1112                 return -1;
1113 #endif
1114
1115         /* align the addr on 16M boundary, 16MB is the minimum huge page
1116          * size on IBM Power architecture. If the addr is aligned to 16MB,
1117          * it can align to 2MB for x86. So this alignment can also be used
1118          * on x86 and other architectures.
1119          */
1120         internal_config.base_virtaddr =
1121                 RTE_PTR_ALIGN_CEIL((uintptr_t)addr, (size_t)RTE_PGSIZE_16M);
1122
1123         return 0;
1124 }
1125
1126 /* caller is responsible for freeing the returned string */
1127 static char *
1128 available_cores(void)
1129 {
1130         char *str = NULL;
1131         int previous;
1132         int sequence;
1133         char *tmp;
1134         int idx;
1135
1136         /* find the first available cpu */
1137         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
1138                 if (eal_cpu_detected(idx) == 0)
1139                         continue;
1140                 break;
1141         }
1142         if (idx >= RTE_MAX_LCORE)
1143                 return NULL;
1144
1145         /* first sequence */
1146         if (asprintf(&str, "%d", idx) < 0)
1147                 return NULL;
1148         previous = idx;
1149         sequence = 0;
1150
1151         for (idx++ ; idx < RTE_MAX_LCORE; idx++) {
1152                 if (eal_cpu_detected(idx) == 0)
1153                         continue;
1154
1155                 if (idx == previous + 1) {
1156                         previous = idx;
1157                         sequence = 1;
1158                         continue;
1159                 }
1160
1161                 /* finish current sequence */
1162                 if (sequence) {
1163                         if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
1164                                 free(str);
1165                                 return NULL;
1166                         }
1167                         free(str);
1168                         str = tmp;
1169                 }
1170
1171                 /* new sequence */
1172                 if (asprintf(&tmp, "%s,%d", str, idx) < 0) {
1173                         free(str);
1174                         return NULL;
1175                 }
1176                 free(str);
1177                 str = tmp;
1178                 previous = idx;
1179                 sequence = 0;
1180         }
1181
1182         /* finish last sequence */
1183         if (sequence) {
1184                 if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
1185                         free(str);
1186                         return NULL;
1187                 }
1188                 free(str);
1189                 str = tmp;
1190         }
1191
1192         return str;
1193 }
1194
1195 int
1196 eal_parse_common_option(int opt, const char *optarg,
1197                         struct internal_config *conf)
1198 {
1199         static int b_used;
1200         static int w_used;
1201
1202         switch (opt) {
1203         /* blacklist */
1204         case 'b':
1205                 if (w_used)
1206                         goto bw_used;
1207                 if (eal_option_device_add(RTE_DEVTYPE_BLACKLISTED_PCI,
1208                                 optarg) < 0) {
1209                         return -1;
1210                 }
1211                 b_used = 1;
1212                 break;
1213         /* whitelist */
1214         case 'w':
1215                 if (b_used)
1216                         goto bw_used;
1217                 if (eal_option_device_add(RTE_DEVTYPE_WHITELISTED_PCI,
1218                                 optarg) < 0) {
1219                         return -1;
1220                 }
1221                 w_used = 1;
1222                 break;
1223         /* coremask */
1224         case 'c': {
1225                 int lcore_indexes[RTE_MAX_LCORE];
1226
1227                 if (eal_service_cores_parsed())
1228                         RTE_LOG(WARNING, EAL,
1229                                 "Service cores parsed before dataplane cores. Please ensure -c is before -s or -S\n");
1230                 if (eal_parse_coremask(optarg, lcore_indexes) < 0) {
1231                         RTE_LOG(ERR, EAL, "invalid coremask syntax\n");
1232                         return -1;
1233                 }
1234                 if (update_lcore_config(lcore_indexes) < 0) {
1235                         char *available = available_cores();
1236
1237                         RTE_LOG(ERR, EAL,
1238                                 "invalid coremask, please check specified cores are part of %s\n",
1239                                 available);
1240                         free(available);
1241                         return -1;
1242                 }
1243
1244                 if (core_parsed) {
1245                         RTE_LOG(ERR, EAL, "Option -c is ignored, because (%s) is set!\n",
1246                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1247                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1248                                 "-c");
1249                         return -1;
1250                 }
1251
1252                 core_parsed = LCORE_OPT_MSK;
1253                 break;
1254         }
1255         /* corelist */
1256         case 'l': {
1257                 int lcore_indexes[RTE_MAX_LCORE];
1258
1259                 if (eal_service_cores_parsed())
1260                         RTE_LOG(WARNING, EAL,
1261                                 "Service cores parsed before dataplane cores. Please ensure -l is before -s or -S\n");
1262
1263                 if (eal_parse_corelist(optarg, lcore_indexes) < 0) {
1264                         RTE_LOG(ERR, EAL, "invalid core list syntax\n");
1265                         return -1;
1266                 }
1267                 if (update_lcore_config(lcore_indexes) < 0) {
1268                         char *available = available_cores();
1269
1270                         RTE_LOG(ERR, EAL,
1271                                 "invalid core list, please check specified cores are part of %s\n",
1272                                 available);
1273                         free(available);
1274                         return -1;
1275                 }
1276
1277                 if (core_parsed) {
1278                         RTE_LOG(ERR, EAL, "Option -l is ignored, because (%s) is set!\n",
1279                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1280                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1281                                 "-l");
1282                         return -1;
1283                 }
1284
1285                 core_parsed = LCORE_OPT_LST;
1286                 break;
1287         }
1288         /* service coremask */
1289         case 's':
1290                 if (eal_parse_service_coremask(optarg) < 0) {
1291                         RTE_LOG(ERR, EAL, "invalid service coremask\n");
1292                         return -1;
1293                 }
1294                 break;
1295         /* service corelist */
1296         case 'S':
1297                 if (eal_parse_service_corelist(optarg) < 0) {
1298                         RTE_LOG(ERR, EAL, "invalid service core list\n");
1299                         return -1;
1300                 }
1301                 break;
1302         /* size of memory */
1303         case 'm':
1304                 conf->memory = atoi(optarg);
1305                 conf->memory *= 1024ULL;
1306                 conf->memory *= 1024ULL;
1307                 mem_parsed = 1;
1308                 break;
1309         /* force number of channels */
1310         case 'n':
1311                 conf->force_nchannel = atoi(optarg);
1312                 if (conf->force_nchannel == 0) {
1313                         RTE_LOG(ERR, EAL, "invalid channel number\n");
1314                         return -1;
1315                 }
1316                 break;
1317         /* force number of ranks */
1318         case 'r':
1319                 conf->force_nrank = atoi(optarg);
1320                 if (conf->force_nrank == 0 ||
1321                     conf->force_nrank > 16) {
1322                         RTE_LOG(ERR, EAL, "invalid rank number\n");
1323                         return -1;
1324                 }
1325                 break;
1326         /* force loading of external driver */
1327         case 'd':
1328                 if (eal_plugin_add(optarg) == -1)
1329                         return -1;
1330                 break;
1331         case 'v':
1332                 /* since message is explicitly requested by user, we
1333                  * write message at highest log level so it can always
1334                  * be seen
1335                  * even if info or warning messages are disabled */
1336                 RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
1337                 break;
1338
1339         /* long options */
1340         case OPT_HUGE_UNLINK_NUM:
1341                 conf->hugepage_unlink = 1;
1342                 break;
1343
1344         case OPT_NO_HUGE_NUM:
1345                 conf->no_hugetlbfs = 1;
1346                 /* no-huge is legacy mem */
1347                 conf->legacy_mem = 1;
1348                 break;
1349
1350         case OPT_NO_PCI_NUM:
1351                 conf->no_pci = 1;
1352                 break;
1353
1354         case OPT_NO_HPET_NUM:
1355                 conf->no_hpet = 1;
1356                 break;
1357
1358         case OPT_VMWARE_TSC_MAP_NUM:
1359                 conf->vmware_tsc_map = 1;
1360                 break;
1361
1362         case OPT_NO_SHCONF_NUM:
1363                 conf->no_shconf = 1;
1364                 break;
1365
1366         case OPT_IN_MEMORY_NUM:
1367                 conf->in_memory = 1;
1368                 /* in-memory is a superset of noshconf and huge-unlink */
1369                 conf->no_shconf = 1;
1370                 conf->hugepage_unlink = 1;
1371                 break;
1372
1373         case OPT_PROC_TYPE_NUM:
1374                 conf->process_type = eal_parse_proc_type(optarg);
1375                 break;
1376
1377         case OPT_MASTER_LCORE_NUM:
1378                 if (eal_parse_master_lcore(optarg) < 0) {
1379                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1380                                         OPT_MASTER_LCORE "\n");
1381                         return -1;
1382                 }
1383                 break;
1384
1385         case OPT_VDEV_NUM:
1386                 if (eal_option_device_add(RTE_DEVTYPE_VIRTUAL,
1387                                 optarg) < 0) {
1388                         return -1;
1389                 }
1390                 break;
1391
1392         case OPT_SYSLOG_NUM:
1393                 if (eal_parse_syslog(optarg, conf) < 0) {
1394                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1395                                         OPT_SYSLOG "\n");
1396                         return -1;
1397                 }
1398                 break;
1399
1400         case OPT_LOG_LEVEL_NUM: {
1401                 if (eal_parse_log_level(optarg) < 0) {
1402                         RTE_LOG(ERR, EAL,
1403                                 "invalid parameters for --"
1404                                 OPT_LOG_LEVEL "\n");
1405                         return -1;
1406                 }
1407                 break;
1408         }
1409         case OPT_LCORES_NUM:
1410                 if (eal_parse_lcores(optarg) < 0) {
1411                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1412                                 OPT_LCORES "\n");
1413                         return -1;
1414                 }
1415
1416                 if (core_parsed) {
1417                         RTE_LOG(ERR, EAL, "Option --lcore is ignored, because (%s) is set!\n",
1418                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1419                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1420                                 "--lcore");
1421                         return -1;
1422                 }
1423
1424                 core_parsed = LCORE_OPT_MAP;
1425                 break;
1426         case OPT_LEGACY_MEM_NUM:
1427                 conf->legacy_mem = 1;
1428                 break;
1429         case OPT_SINGLE_FILE_SEGMENTS_NUM:
1430                 conf->single_file_segments = 1;
1431                 break;
1432         case OPT_IOVA_MODE_NUM:
1433                 if (eal_parse_iova_mode(optarg) < 0) {
1434                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1435                                 OPT_IOVA_MODE "\n");
1436                         return -1;
1437                 }
1438                 break;
1439         case OPT_BASE_VIRTADDR_NUM:
1440                 if (eal_parse_base_virtaddr(optarg) < 0) {
1441                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1442                                         OPT_BASE_VIRTADDR "\n");
1443                         return -1;
1444                 }
1445                 break;
1446
1447         /* don't know what to do, leave this to caller */
1448         default:
1449                 return 1;
1450
1451         }
1452
1453         return 0;
1454 bw_used:
1455         RTE_LOG(ERR, EAL, "Options blacklist (-b) and whitelist (-w) "
1456                 "cannot be used at the same time\n");
1457         return -1;
1458 }
1459
1460 static void
1461 eal_auto_detect_cores(struct rte_config *cfg)
1462 {
1463         unsigned int lcore_id;
1464         unsigned int removed = 0;
1465         rte_cpuset_t affinity_set;
1466
1467         if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1468                                 &affinity_set))
1469                 CPU_ZERO(&affinity_set);
1470
1471         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1472                 if (cfg->lcore_role[lcore_id] == ROLE_RTE &&
1473                     !CPU_ISSET(lcore_id, &affinity_set)) {
1474                         cfg->lcore_role[lcore_id] = ROLE_OFF;
1475                         removed++;
1476                 }
1477         }
1478
1479         cfg->lcore_count -= removed;
1480 }
1481
1482 static void
1483 compute_ctrl_threads_cpuset(struct internal_config *internal_cfg)
1484 {
1485         rte_cpuset_t *cpuset = &internal_cfg->ctrl_cpuset;
1486         rte_cpuset_t default_set;
1487         unsigned int lcore_id;
1488
1489         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1490                 if (rte_lcore_has_role(lcore_id, ROLE_OFF))
1491                         continue;
1492                 RTE_CPU_OR(cpuset, cpuset, &lcore_config[lcore_id].cpuset);
1493         }
1494         RTE_CPU_NOT(cpuset, cpuset);
1495
1496         if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1497                                 &default_set))
1498                 CPU_ZERO(&default_set);
1499
1500         RTE_CPU_AND(cpuset, cpuset, &default_set);
1501
1502         /* if no remaining cpu, use master lcore cpu affinity */
1503         if (!CPU_COUNT(cpuset)) {
1504                 memcpy(cpuset, &lcore_config[rte_get_master_lcore()].cpuset,
1505                         sizeof(*cpuset));
1506         }
1507 }
1508
1509 int
1510 eal_cleanup_config(struct internal_config *internal_cfg)
1511 {
1512         if (internal_cfg->hugefile_prefix != NULL)
1513                 free(internal_cfg->hugefile_prefix);
1514         if (internal_cfg->hugepage_dir != NULL)
1515                 free(internal_cfg->hugepage_dir);
1516         if (internal_cfg->user_mbuf_pool_ops_name != NULL)
1517                 free(internal_cfg->user_mbuf_pool_ops_name);
1518
1519         return 0;
1520 }
1521
1522 int
1523 eal_adjust_config(struct internal_config *internal_cfg)
1524 {
1525         int i;
1526         struct rte_config *cfg = rte_eal_get_configuration();
1527
1528         if (!core_parsed)
1529                 eal_auto_detect_cores(cfg);
1530
1531         if (internal_config.process_type == RTE_PROC_AUTO)
1532                 internal_config.process_type = eal_proc_type_detect();
1533
1534         /* default master lcore is the first one */
1535         if (!master_lcore_parsed) {
1536                 cfg->master_lcore = rte_get_next_lcore(-1, 0, 0);
1537                 if (cfg->master_lcore >= RTE_MAX_LCORE)
1538                         return -1;
1539                 lcore_config[cfg->master_lcore].core_role = ROLE_RTE;
1540         }
1541
1542         compute_ctrl_threads_cpuset(internal_cfg);
1543
1544         /* if no memory amounts were requested, this will result in 0 and
1545          * will be overridden later, right after eal_hugepage_info_init() */
1546         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
1547                 internal_cfg->memory += internal_cfg->socket_mem[i];
1548
1549         return 0;
1550 }
1551
1552 int
1553 eal_check_common_options(struct internal_config *internal_cfg)
1554 {
1555         struct rte_config *cfg = rte_eal_get_configuration();
1556
1557         if (cfg->lcore_role[cfg->master_lcore] != ROLE_RTE) {
1558                 RTE_LOG(ERR, EAL, "Master lcore is not enabled for DPDK\n");
1559                 return -1;
1560         }
1561
1562         if (internal_cfg->process_type == RTE_PROC_INVALID) {
1563                 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
1564                 return -1;
1565         }
1566         if (internal_cfg->hugefile_prefix != NULL &&
1567                         strlen(internal_cfg->hugefile_prefix) < 1) {
1568                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_FILE_PREFIX " option\n");
1569                 return -1;
1570         }
1571         if (internal_cfg->hugepage_dir != NULL &&
1572                         strlen(internal_cfg->hugepage_dir) < 1) {
1573                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_HUGE_DIR" option\n");
1574                 return -1;
1575         }
1576         if (internal_cfg->user_mbuf_pool_ops_name != NULL &&
1577                         strlen(internal_cfg->user_mbuf_pool_ops_name) < 1) {
1578                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_MBUF_POOL_OPS_NAME" option\n");
1579                 return -1;
1580         }
1581         if (index(eal_get_hugefile_prefix(), '%') != NULL) {
1582                 RTE_LOG(ERR, EAL, "Invalid char, '%%', in --"OPT_FILE_PREFIX" "
1583                         "option\n");
1584                 return -1;
1585         }
1586         if (mem_parsed && internal_cfg->force_sockets == 1) {
1587                 RTE_LOG(ERR, EAL, "Options -m and --"OPT_SOCKET_MEM" cannot "
1588                         "be specified at the same time\n");
1589                 return -1;
1590         }
1591         if (internal_cfg->no_hugetlbfs && internal_cfg->force_sockets == 1) {
1592                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_MEM" cannot "
1593                         "be specified together with --"OPT_NO_HUGE"\n");
1594                 return -1;
1595         }
1596         if (internal_cfg->no_hugetlbfs && internal_cfg->hugepage_unlink &&
1597                         !internal_cfg->in_memory) {
1598                 RTE_LOG(ERR, EAL, "Option --"OPT_HUGE_UNLINK" cannot "
1599                         "be specified together with --"OPT_NO_HUGE"\n");
1600                 return -1;
1601         }
1602         if (internal_config.force_socket_limits && internal_config.legacy_mem) {
1603                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_LIMIT
1604                         " is only supported in non-legacy memory mode\n");
1605         }
1606         if (internal_cfg->single_file_segments &&
1607                         internal_cfg->hugepage_unlink &&
1608                         !internal_cfg->in_memory) {
1609                 RTE_LOG(ERR, EAL, "Option --"OPT_SINGLE_FILE_SEGMENTS" is "
1610                         "not compatible with --"OPT_HUGE_UNLINK"\n");
1611                 return -1;
1612         }
1613         if (internal_cfg->legacy_mem &&
1614                         internal_cfg->in_memory) {
1615                 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
1616                                 "with --"OPT_IN_MEMORY"\n");
1617                 return -1;
1618         }
1619         if (internal_cfg->legacy_mem && internal_cfg->match_allocations) {
1620                 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
1621                                 "with --"OPT_MATCH_ALLOCATIONS"\n");
1622                 return -1;
1623         }
1624         if (internal_cfg->no_hugetlbfs && internal_cfg->match_allocations) {
1625                 RTE_LOG(ERR, EAL, "Option --"OPT_NO_HUGE" is not compatible "
1626                                 "with --"OPT_MATCH_ALLOCATIONS"\n");
1627                 return -1;
1628         }
1629         if (internal_cfg->legacy_mem && internal_cfg->memory == 0) {
1630                 RTE_LOG(NOTICE, EAL, "Static memory layout is selected, "
1631                         "amount of reserved memory can be adjusted with "
1632                         "-m or --"OPT_SOCKET_MEM"\n");
1633         }
1634
1635         return 0;
1636 }
1637
1638 void
1639 eal_common_usage(void)
1640 {
1641         printf("[options]\n\n"
1642                "EAL common options:\n"
1643                "  -c COREMASK         Hexadecimal bitmask of cores to run on\n"
1644                "  -l CORELIST         List of cores to run on\n"
1645                "                      The argument format is <c1>[-c2][,c3[-c4],...]\n"
1646                "                      where c1, c2, etc are core indexes between 0 and %d\n"
1647                "  --"OPT_LCORES" COREMAP    Map lcore set to physical cpu set\n"
1648                "                      The argument format is\n"
1649                "                            '<lcores[@cpus]>[<,lcores[@cpus]>...]'\n"
1650                "                      lcores and cpus list are grouped by '(' and ')'\n"
1651                "                      Within the group, '-' is used for range separator,\n"
1652                "                      ',' is used for single number separator.\n"
1653                "                      '( )' can be omitted for single element group,\n"
1654                "                      '@' can be omitted if cpus and lcores have the same value\n"
1655                "  -s SERVICE COREMASK Hexadecimal bitmask of cores to be used as service cores\n"
1656                "  --"OPT_MASTER_LCORE" ID   Core ID that is used as master\n"
1657                "  --"OPT_MBUF_POOL_OPS_NAME" Pool ops name for mbuf to use\n"
1658                "  -n CHANNELS         Number of memory channels\n"
1659                "  -m MB               Memory to allocate (see also --"OPT_SOCKET_MEM")\n"
1660                "  -r RANKS            Force number of memory ranks (don't detect)\n"
1661                "  -b, --"OPT_PCI_BLACKLIST" Add a PCI device in black list.\n"
1662                "                      Prevent EAL from using this PCI device. The argument\n"
1663                "                      format is <domain:bus:devid.func>.\n"
1664                "  -w, --"OPT_PCI_WHITELIST" Add a PCI device in white list.\n"
1665                "                      Only use the specified PCI devices. The argument format\n"
1666                "                      is <[domain:]bus:devid.func>. This option can be present\n"
1667                "                      several times (once per device).\n"
1668                "                      [NOTE: PCI whitelist cannot be used with -b option]\n"
1669                "  --"OPT_VDEV"              Add a virtual device.\n"
1670                "                      The argument format is <driver><id>[,key=val,...]\n"
1671                "                      (ex: --vdev=net_pcap0,iface=eth2).\n"
1672                "  --"OPT_IOVA_MODE"   Set IOVA mode. 'pa' for IOVA_PA\n"
1673                "                      'va' for IOVA_VA\n"
1674                "  -d LIB.so|DIR       Add a driver or driver directory\n"
1675                "                      (can be used multiple times)\n"
1676                "  --"OPT_VMWARE_TSC_MAP"    Use VMware TSC map instead of native RDTSC\n"
1677                "  --"OPT_PROC_TYPE"         Type of this process (primary|secondary|auto)\n"
1678                "  --"OPT_SYSLOG"            Set syslog facility\n"
1679                "  --"OPT_LOG_LEVEL"=<int>   Set global log level\n"
1680                "  --"OPT_LOG_LEVEL"=<type-match>:<int>\n"
1681                "                      Set specific log level\n"
1682                "  -v                  Display version information on startup\n"
1683                "  -h, --help          This help\n"
1684                "  --"OPT_IN_MEMORY"   Operate entirely in memory. This will\n"
1685                "                      disable secondary process support\n"
1686                "  --"OPT_BASE_VIRTADDR"     Base virtual address\n"
1687                "\nEAL options for DEBUG use only:\n"
1688                "  --"OPT_HUGE_UNLINK"       Unlink hugepage files after init\n"
1689                "  --"OPT_NO_HUGE"           Use malloc instead of hugetlbfs\n"
1690                "  --"OPT_NO_PCI"            Disable PCI\n"
1691                "  --"OPT_NO_HPET"           Disable HPET\n"
1692                "  --"OPT_NO_SHCONF"         No shared config (mmap'd files)\n"
1693                "\n", RTE_MAX_LCORE);
1694         rte_option_usage();
1695 }