lib/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 #include <libgen.h>
  19 #endif
  20 #include <sys/types.h>
  21 #include <sys/stat.h>
  22 #ifndef RTE_EXEC_ENV_WINDOWS
  23 #include <dirent.h>
  24 #endif
  25
  26 #include <rte_string_fns.h>
  27 #include <rte_eal.h>
  28 #include <rte_log.h>
  29 #include <rte_lcore.h>
  30 #include <rte_memory.h>
  31 #include <rte_tailq.h>
  32 #include <rte_version.h>
  33 #include <rte_devargs.h>
  34 #include <rte_memcpy.h>
  35 #ifndef RTE_EXEC_ENV_WINDOWS
  36 #include <rte_telemetry.h>
  37 #endif
  38 #include <rte_vect.h>
  39
  40 #include "eal_internal_cfg.h"
  41 #include "eal_options.h"
  42 #include "eal_filesystem.h"
  43 #include "eal_private.h"
  44 #include "eal_log.h"
  45 #ifndef RTE_EXEC_ENV_WINDOWS
  46 #include "eal_trace.h"
  47 #endif
  48
  49 #define BITS_PER_HEX 4
  50 #define LCORE_OPT_LST 1
  51 #define LCORE_OPT_MSK 2
  52 #define LCORE_OPT_MAP 3
  53
  54 const char
  55 eal_short_options[] =
  56         "a:" /* allow */
  57         "b:" /* block */
  58         "c:" /* coremask */
  59         "s:" /* service coremask */
  60         "d:" /* driver */
  61         "h"  /* help */
  62         "l:" /* corelist */
  63         "S:" /* service corelist */
  64         "m:" /* memory size */
  65         "n:" /* memory channels */
  66         "r:" /* memory ranks */
  67         "v"  /* version */
  68         "w:" /* pci-whitelist (deprecated) */
  69         ;
  70
  71 const struct option
  72 eal_long_options[] = {
  73         {OPT_BASE_VIRTADDR,     1, NULL, OPT_BASE_VIRTADDR_NUM    },
  74         {OPT_CREATE_UIO_DEV,    0, NULL, OPT_CREATE_UIO_DEV_NUM   },
  75         {OPT_FILE_PREFIX,       1, NULL, OPT_FILE_PREFIX_NUM      },
  76         {OPT_HELP,              0, NULL, OPT_HELP_NUM             },
  77         {OPT_HUGE_DIR,          1, NULL, OPT_HUGE_DIR_NUM         },
  78         {OPT_HUGE_UNLINK,       0, NULL, OPT_HUGE_UNLINK_NUM      },
  79         {OPT_IOVA_MODE,         1, NULL, OPT_IOVA_MODE_NUM        },
  80         {OPT_LCORES,            1, NULL, OPT_LCORES_NUM           },
  81         {OPT_LOG_LEVEL,         1, NULL, OPT_LOG_LEVEL_NUM        },
  82         {OPT_TRACE,             1, NULL, OPT_TRACE_NUM            },
  83         {OPT_TRACE_DIR,         1, NULL, OPT_TRACE_DIR_NUM        },
  84         {OPT_TRACE_BUF_SIZE,    1, NULL, OPT_TRACE_BUF_SIZE_NUM   },
  85         {OPT_TRACE_MODE,        1, NULL, OPT_TRACE_MODE_NUM       },
  86         {OPT_MASTER_LCORE,      1, NULL, OPT_MASTER_LCORE_NUM     },
  87         {OPT_MAIN_LCORE,        1, NULL, OPT_MAIN_LCORE_NUM       },
  88         {OPT_MBUF_POOL_OPS_NAME, 1, NULL, OPT_MBUF_POOL_OPS_NAME_NUM},
  89         {OPT_NO_HPET,           0, NULL, OPT_NO_HPET_NUM          },
  90         {OPT_NO_HUGE,           0, NULL, OPT_NO_HUGE_NUM          },
  91         {OPT_NO_PCI,            0, NULL, OPT_NO_PCI_NUM           },
  92         {OPT_NO_SHCONF,         0, NULL, OPT_NO_SHCONF_NUM        },
  93         {OPT_IN_MEMORY,         0, NULL, OPT_IN_MEMORY_NUM        },
  94         {OPT_DEV_BLOCK,         1, NULL, OPT_DEV_BLOCK_NUM        },
  95         {OPT_DEV_ALLOW,         1, NULL, OPT_DEV_ALLOW_NUM        },
  96         {OPT_PROC_TYPE,         1, NULL, OPT_PROC_TYPE_NUM        },
  97         {OPT_SOCKET_MEM,        1, NULL, OPT_SOCKET_MEM_NUM       },
  98         {OPT_SOCKET_LIMIT,      1, NULL, OPT_SOCKET_LIMIT_NUM     },
  99         {OPT_SYSLOG,            1, NULL, OPT_SYSLOG_NUM           },
 100         {OPT_VDEV,              1, NULL, OPT_VDEV_NUM             },
 101         {OPT_VFIO_INTR,         1, NULL, OPT_VFIO_INTR_NUM        },
 102         {OPT_VFIO_VF_TOKEN,     1, NULL, OPT_VFIO_VF_TOKEN_NUM    },
 103         {OPT_VMWARE_TSC_MAP,    0, NULL, OPT_VMWARE_TSC_MAP_NUM   },
 104         {OPT_LEGACY_MEM,        0, NULL, OPT_LEGACY_MEM_NUM       },
 105         {OPT_SINGLE_FILE_SEGMENTS, 0, NULL, OPT_SINGLE_FILE_SEGMENTS_NUM},
 106         {OPT_MATCH_ALLOCATIONS, 0, NULL, OPT_MATCH_ALLOCATIONS_NUM},
 107         {OPT_TELEMETRY,         0, NULL, OPT_TELEMETRY_NUM        },
 108         {OPT_NO_TELEMETRY,      0, NULL, OPT_NO_TELEMETRY_NUM     },
 109         {OPT_FORCE_MAX_SIMD_BITWIDTH, 1, NULL, OPT_FORCE_MAX_SIMD_BITWIDTH_NUM},
 110
 111         /* legacy options that will be removed in future */
 112         {OPT_PCI_BLACKLIST,     1, NULL, OPT_PCI_BLACKLIST_NUM    },
 113         {OPT_PCI_WHITELIST,     1, NULL, OPT_PCI_WHITELIST_NUM    },
 114
 115         {0,                     0, NULL, 0                        }
 116 };
 117
 118 TAILQ_HEAD(shared_driver_list, shared_driver);
 119
 120 /* Definition for shared object drivers. */
 121 struct shared_driver {
 122         TAILQ_ENTRY(shared_driver) next;
 123
 124         char    name[PATH_MAX];
 125         void*   lib_handle;
 126 };
 127
 128 /* List of external loadable drivers */
 129 static struct shared_driver_list solib_list =
 130 TAILQ_HEAD_INITIALIZER(solib_list);
 131
 132 #ifndef RTE_EXEC_ENV_WINDOWS
 133 /* Default path of external loadable drivers */
 134 static const char *default_solib_dir = RTE_EAL_PMD_PATH;
 135 #endif
 136
 137 /*
 138  * Stringified version of solib path used by dpdk-pmdinfo.py
 139  * Note: PLEASE DO NOT ALTER THIS without making a corresponding
 140  * change to usertools/dpdk-pmdinfo.py
 141  */
 142 static const char dpdk_solib_path[] __rte_used =
 143 "DPDK_PLUGIN_PATH=" RTE_EAL_PMD_PATH;
 144
 145 TAILQ_HEAD(device_option_list, device_option);
 146
 147 struct device_option {
 148         TAILQ_ENTRY(device_option) next;
 149
 150         enum rte_devtype type;
 151         char arg[];
 152 };
 153
 154 static struct device_option_list devopt_list =
 155 TAILQ_HEAD_INITIALIZER(devopt_list);
 156
 157 static int main_lcore_parsed;
 158 static int mem_parsed;
 159 static int core_parsed;
 160
 161 /* Allow the application to print its usage message too if set */
 162 static rte_usage_hook_t rte_application_usage_hook;
 163
 164 /* Returns rte_usage_hook_t */
 165 rte_usage_hook_t
 166 eal_get_application_usage_hook(void)
 167 {
 168         return rte_application_usage_hook;
 169 }
 170
 171 /* Set a per-application usage message */
 172 rte_usage_hook_t
 173 rte_set_application_usage_hook(rte_usage_hook_t usage_func)
 174 {
 175         rte_usage_hook_t old_func;
 176
 177         /* Will be NULL on the first call to denote the last usage routine. */
 178         old_func = rte_application_usage_hook;
 179         rte_application_usage_hook = usage_func;
 180
 181         return old_func;
 182 }
 183
 184 #ifndef RTE_EXEC_ENV_WINDOWS
 185 static char **eal_args;
 186 static char **eal_app_args;
 187
 188 #define EAL_PARAM_REQ "/eal/params"
 189 #define EAL_APP_PARAM_REQ "/eal/app_params"
 190
 191 /* callback handler for telemetry library to report out EAL flags */
 192 int
 193 handle_eal_info_request(const char *cmd, const char *params __rte_unused,
 194                 struct rte_tel_data *d)
 195 {
 196         char **args;
 197         int used = 0;
 198         int i = 0;
 199
 200         if (strcmp(cmd, EAL_PARAM_REQ) == 0)
 201                 args = eal_args;
 202         else
 203                 args = eal_app_args;
 204
 205         rte_tel_data_start_array(d, RTE_TEL_STRING_VAL);
 206         if (args == NULL || args[0] == NULL)
 207                 return 0;
 208
 209         for ( ; args[i] != NULL; i++)
 210                 used = rte_tel_data_add_array_string(d, args[i]);
 211         return used;
 212 }
 213
 214 int
 215 eal_save_args(int argc, char **argv)
 216 {
 217         int i, j;
 218
 219         rte_telemetry_register_cmd(EAL_PARAM_REQ, handle_eal_info_request,
 220                         "Returns EAL commandline parameters used. Takes no parameters");
 221         rte_telemetry_register_cmd(EAL_APP_PARAM_REQ, handle_eal_info_request,
 222                         "Returns app commandline parameters used. Takes no parameters");
 223
 224         /* clone argv to report out later. We overprovision, but
 225          * this does not waste huge amounts of memory
 226          */
 227         eal_args = calloc(argc + 1, sizeof(*eal_args));
 228         if (eal_args == NULL)
 229                 return -1;
 230
 231         for (i = 0; i < argc; i++) {
 232                 eal_args[i] = strdup(argv[i]);
 233                 if (strcmp(argv[i], "--") == 0)
 234                         break;
 235         }
 236         eal_args[i++] = NULL; /* always finish with NULL */
 237
 238         /* allow reporting of any app args we know about too */
 239         if (i >= argc)
 240                 return 0;
 241
 242         eal_app_args = calloc(argc - i + 1, sizeof(*eal_args));
 243         if (eal_app_args == NULL)
 244                 return -1;
 245
 246         for (j = 0; i < argc; j++, i++)
 247                 eal_app_args[j] = strdup(argv[i]);
 248         eal_app_args[j] = NULL;
 249
 250         return 0;
 251 }
 252 #endif
 253
 254 static int
 255 eal_option_device_add(enum rte_devtype type, const char *optarg)
 256 {
 257         struct device_option *devopt;
 258         size_t optlen;
 259         int ret;
 260
 261         optlen = strlen(optarg) + 1;
 262         devopt = calloc(1, sizeof(*devopt) + optlen);
 263         if (devopt == NULL) {
 264                 RTE_LOG(ERR, EAL, "Unable to allocate device option\n");
 265                 return -ENOMEM;
 266         }
 267
 268         devopt->type = type;
 269         ret = strlcpy(devopt->arg, optarg, optlen);
 270         if (ret < 0) {
 271                 RTE_LOG(ERR, EAL, "Unable to copy device option\n");
 272                 free(devopt);
 273                 return -EINVAL;
 274         }
 275         TAILQ_INSERT_TAIL(&devopt_list, devopt, next);
 276         return 0;
 277 }
 278
 279 int
 280 eal_option_device_parse(void)
 281 {
 282         struct device_option *devopt;
 283         void *tmp;
 284         int ret = 0;
 285
 286         TAILQ_FOREACH_SAFE(devopt, &devopt_list, next, tmp) {
 287                 if (ret == 0) {
 288                         ret = rte_devargs_add(devopt->type, devopt->arg);
 289                         if (ret)
 290                                 RTE_LOG(ERR, EAL, "Unable to parse device '%s'\n",
 291                                         devopt->arg);
 292                 }
 293                 TAILQ_REMOVE(&devopt_list, devopt, next);
 294                 free(devopt);
 295         }
 296         return ret;
 297 }
 298
 299 const char *
 300 eal_get_hugefile_prefix(void)
 301 {
 302         const struct internal_config *internal_conf =
 303                 eal_get_internal_configuration();
 304
 305         if (internal_conf->hugefile_prefix != NULL)
 306                 return internal_conf->hugefile_prefix;
 307         return HUGEFILE_PREFIX_DEFAULT;
 308 }
 309
 310 void
 311 eal_reset_internal_config(struct internal_config *internal_cfg)
 312 {
 313         int i;
 314
 315         internal_cfg->memory = 0;
 316         internal_cfg->force_nrank = 0;
 317         internal_cfg->force_nchannel = 0;
 318         internal_cfg->hugefile_prefix = NULL;
 319         internal_cfg->hugepage_dir = NULL;
 320         internal_cfg->force_sockets = 0;
 321         /* zero out the NUMA config */
 322         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 323                 internal_cfg->socket_mem[i] = 0;
 324         internal_cfg->force_socket_limits = 0;
 325         /* zero out the NUMA limits config */
 326         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
 327                 internal_cfg->socket_limit[i] = 0;
 328         /* zero out hugedir descriptors */
 329         for (i = 0; i < MAX_HUGEPAGE_SIZES; i++) {
 330                 memset(&internal_cfg->hugepage_info[i], 0,
 331                                 sizeof(internal_cfg->hugepage_info[0]));
 332                 internal_cfg->hugepage_info[i].lock_descriptor = -1;
 333         }
 334         internal_cfg->base_virtaddr = 0;
 335
 336 #ifdef LOG_DAEMON
 337         internal_cfg->syslog_facility = LOG_DAEMON;
 338 #endif
 339
 340         /* if set to NONE, interrupt mode is determined automatically */
 341         internal_cfg->vfio_intr_mode = RTE_INTR_MODE_NONE;
 342         memset(internal_cfg->vfio_vf_token, 0,
 343                         sizeof(internal_cfg->vfio_vf_token));
 344
 345 #ifdef RTE_LIBEAL_USE_HPET
 346         internal_cfg->no_hpet = 0;
 347 #else
 348         internal_cfg->no_hpet = 1;
 349 #endif
 350         internal_cfg->vmware_tsc_map = 0;
 351         internal_cfg->create_uio_dev = 0;
 352         internal_cfg->iova_mode = RTE_IOVA_DC;
 353         internal_cfg->user_mbuf_pool_ops_name = NULL;
 354         CPU_ZERO(&internal_cfg->ctrl_cpuset);
 355         internal_cfg->init_complete = 0;
 356         internal_cfg->max_simd_bitwidth.bitwidth = RTE_VECT_DEFAULT_SIMD_BITWIDTH;
 357         internal_cfg->max_simd_bitwidth.forced = 0;
 358 }
 359
 360 static int
 361 eal_plugin_add(const char *path)
 362 {
 363         struct shared_driver *solib;
 364
 365         solib = malloc(sizeof(*solib));
 366         if (solib == NULL) {
 367                 RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
 368                 return -1;
 369         }
 370         memset(solib, 0, sizeof(*solib));
 371         strlcpy(solib->name, path, PATH_MAX);
 372         TAILQ_INSERT_TAIL(&solib_list, solib, next);
 373
 374         return 0;
 375 }
 376
 377 #ifdef RTE_EXEC_ENV_WINDOWS
 378 int
 379 eal_plugins_init(void)
 380 {
 381         return 0;
 382 }
 383 #else
 384
 385 static int
 386 eal_plugindir_init(const char *path)
 387 {
 388         DIR *d = NULL;
 389         struct dirent *dent = NULL;
 390         char sopath[PATH_MAX];
 391
 392         if (path == NULL || *path == '\0')
 393                 return 0;
 394
 395         d = opendir(path);
 396         if (d == NULL) {
 397                 RTE_LOG(ERR, EAL, "failed to open directory %s: %s\n",
 398                         path, strerror(errno));
 399                 return -1;
 400         }
 401
 402         while ((dent = readdir(d)) != NULL) {
 403                 struct stat sb;
 404                 int nlen = strnlen(dent->d_name, sizeof(dent->d_name));
 405
 406                 /* check if name ends in .so or .so.ABI_VERSION */
 407                 if (strcmp(&dent->d_name[nlen - 3], ".so") != 0 &&
 408                     strcmp(&dent->d_name[nlen - 4 - strlen(ABI_VERSION)],
 409                            ".so."ABI_VERSION) != 0)
 410                         continue;
 411
 412                 snprintf(sopath, sizeof(sopath), "%s/%s", path, dent->d_name);
 413
 414                 /* if a regular file, add to list to load */
 415                 if (!(stat(sopath, &sb) == 0 && S_ISREG(sb.st_mode)))
 416                         continue;
 417
 418                 if (eal_plugin_add(sopath) == -1)
 419                         break;
 420         }
 421
 422         closedir(d);
 423         /* XXX this ignores failures from readdir() itself */
 424         return (dent == NULL) ? 0 : -1;
 425 }
 426
 427 static int
 428 verify_perms(const char *dirpath)
 429 {
 430         struct stat st;
 431
 432         /* if not root, check down one level first */
 433         if (strcmp(dirpath, "/") != 0) {
 434                 static __thread char last_dir_checked[PATH_MAX];
 435                 char copy[PATH_MAX];
 436                 const char *dir;
 437
 438                 strlcpy(copy, dirpath, PATH_MAX);
 439                 dir = dirname(copy);
 440                 if (strncmp(dir, last_dir_checked, PATH_MAX) != 0) {
 441                         if (verify_perms(dir) != 0)
 442                                 return -1;
 443                         strlcpy(last_dir_checked, dir, PATH_MAX);
 444                 }
 445         }
 446
 447         /* call stat to check for permissions and ensure not world writable */
 448         if (stat(dirpath, &st) != 0) {
 449                 RTE_LOG(ERR, EAL, "Error with stat on %s, %s\n",
 450                                 dirpath, strerror(errno));
 451                 return -1;
 452         }
 453         if (st.st_mode & S_IWOTH) {
 454                 RTE_LOG(ERR, EAL,
 455                                 "Error, directory path %s is world-writable and insecure\n",
 456                                 dirpath);
 457                 return -1;
 458         }
 459
 460         return 0;
 461 }
 462
 463 static void *
 464 eal_dlopen(const char *pathname)
 465 {
 466         void *retval = NULL;
 467         char *realp = realpath(pathname, NULL);
 468
 469         if (realp == NULL && errno == ENOENT) {
 470                 /* not a full or relative path, try a load from system dirs */
 471                 retval = dlopen(pathname, RTLD_NOW);
 472                 if (retval == NULL)
 473                         RTE_LOG(ERR, EAL, "%s\n", dlerror());
 474                 return retval;
 475         }
 476         if (realp == NULL) {
 477                 RTE_LOG(ERR, EAL, "Error with realpath for %s, %s\n",
 478                                 pathname, strerror(errno));
 479                 goto out;
 480         }
 481         if (strnlen(realp, PATH_MAX) == PATH_MAX) {
 482                 RTE_LOG(ERR, EAL, "Error, driver path greater than PATH_MAX\n");
 483                 goto out;
 484         }
 485
 486         /* do permissions checks */
 487         if (verify_perms(realp) != 0)
 488                 goto out;
 489
 490         retval = dlopen(realp, RTLD_NOW);
 491         if (retval == NULL)
 492                 RTE_LOG(ERR, EAL, "%s\n", dlerror());
 493 out:
 494         free(realp);
 495         return retval;
 496 }
 497
 498 static int
 499 is_shared_build(void)
 500 {
 501 #define EAL_SO "librte_eal.so"
 502         char soname[32];
 503         size_t len, minlen = strlen(EAL_SO);
 504
 505         len = strlcpy(soname, EAL_SO"."ABI_VERSION, sizeof(soname));
 506         if (len > sizeof(soname)) {
 507                 RTE_LOG(ERR, EAL, "Shared lib name too long in shared build check\n");
 508                 len = sizeof(soname) - 1;
 509         }
 510
 511         while (len >= minlen) {
 512                 void *handle;
 513
 514                 /* check if we have this .so loaded, if so - shared build */
 515                 RTE_LOG(DEBUG, EAL, "Checking presence of .so '%s'\n", soname);
 516                 handle = dlopen(soname, RTLD_LAZY | RTLD_NOLOAD);
 517                 if (handle != NULL) {
 518                         RTE_LOG(INFO, EAL, "Detected shared linkage of DPDK\n");
 519                         dlclose(handle);
 520                         return 1;
 521                 }
 522
 523                 /* remove any version numbers off the end to retry */
 524                 while (len-- > 0)
 525                         if (soname[len] == '.') {
 526                                 soname[len] = '\0';
 527                                 break;
 528                         }
 529         }
 530
 531         RTE_LOG(INFO, EAL, "Detected static linkage of DPDK\n");
 532         return 0;
 533 }
 534
 535 int
 536 eal_plugins_init(void)
 537 {
 538         struct shared_driver *solib = NULL;
 539         struct stat sb;
 540
 541         /* If we are not statically linked, add default driver loading
 542          * path if it exists as a directory.
 543          * (Using dlopen with NOLOAD flag on EAL, will return NULL if the EAL
 544          * shared library is not already loaded i.e. it's statically linked.)
 545          */
 546         if (is_shared_build() &&
 547                         *default_solib_dir != '\0' &&
 548                         stat(default_solib_dir, &sb) == 0 &&
 549                         S_ISDIR(sb.st_mode))
 550                 eal_plugin_add(default_solib_dir);
 551
 552         TAILQ_FOREACH(solib, &solib_list, next) {
 553
 554                 if (stat(solib->name, &sb) == 0 && S_ISDIR(sb.st_mode)) {
 555                         if (eal_plugindir_init(solib->name) == -1) {
 556                                 RTE_LOG(ERR, EAL,
 557                                         "Cannot init plugin directory %s\n",
 558                                         solib->name);
 559                                 return -1;
 560                         }
 561                 } else {
 562                         RTE_LOG(DEBUG, EAL, "open shared lib %s\n",
 563                                 solib->name);
 564                         solib->lib_handle = eal_dlopen(solib->name);
 565                         if (solib->lib_handle == NULL)
 566                                 return -1;
 567                 }
 568
 569         }
 570         return 0;
 571 }
 572 #endif
 573
 574 /*
 575  * Parse the coremask given as argument (hexadecimal string) and fill
 576  * the global configuration (core role and core count) with the parsed
 577  * value.
 578  */
 579 static int xdigit2val(unsigned char c)
 580 {
 581         int val;
 582
 583         if (isdigit(c))
 584                 val = c - '0';
 585         else if (isupper(c))
 586                 val = c - 'A' + 10;
 587         else
 588                 val = c - 'a' + 10;
 589         return val;
 590 }
 591
 592 static int
 593 eal_parse_service_coremask(const char *coremask)
 594 {
 595         struct rte_config *cfg = rte_eal_get_configuration();
 596         int i, j, idx = 0;
 597         unsigned int count = 0;
 598         char c;
 599         int val;
 600         uint32_t taken_lcore_count = 0;
 601
 602         if (coremask == NULL)
 603                 return -1;
 604         /* Remove all blank characters ahead and after .
 605          * Remove 0x/0X if exists.
 606          */
 607         while (isblank(*coremask))
 608                 coremask++;
 609         if (coremask[0] == '0' && ((coremask[1] == 'x')
 610                 || (coremask[1] == 'X')))
 611                 coremask += 2;
 612         i = strlen(coremask);
 613         while ((i > 0) && isblank(coremask[i - 1]))
 614                 i--;
 615
 616         if (i == 0)
 617                 return -1;
 618
 619         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 620                 c = coremask[i];
 621                 if (isxdigit(c) == 0) {
 622                         /* invalid characters */
 623                         return -1;
 624                 }
 625                 val = xdigit2val(c);
 626                 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE;
 627                                 j++, idx++) {
 628                         if ((1 << j) & val) {
 629                                 /* handle main lcore already parsed */
 630                                 uint32_t lcore = idx;
 631                                 if (main_lcore_parsed &&
 632                                                 cfg->main_lcore == lcore) {
 633                                         RTE_LOG(ERR, EAL,
 634                                                 "lcore %u is main lcore, cannot use as service core\n",
 635                                                 idx);
 636                                         return -1;
 637                                 }
 638
 639                                 if (eal_cpu_detected(idx) == 0) {
 640                                         RTE_LOG(ERR, EAL,
 641                                                 "lcore %u unavailable\n", idx);
 642                                         return -1;
 643                                 }
 644
 645                                 if (cfg->lcore_role[idx] == ROLE_RTE)
 646                                         taken_lcore_count++;
 647
 648                                 lcore_config[idx].core_role = ROLE_SERVICE;
 649                                 count++;
 650                         }
 651                 }
 652         }
 653
 654         for (; i >= 0; i--)
 655                 if (coremask[i] != '0')
 656                         return -1;
 657
 658         for (; idx < RTE_MAX_LCORE; idx++)
 659                 lcore_config[idx].core_index = -1;
 660
 661         if (count == 0)
 662                 return -1;
 663
 664         if (core_parsed && taken_lcore_count != count) {
 665                 RTE_LOG(WARNING, EAL,
 666                         "Not all service cores are in the coremask. "
 667                         "Please ensure -c or -l includes service cores\n");
 668         }
 669
 670         cfg->service_lcore_count = count;
 671         return 0;
 672 }
 673
 674 static int
 675 eal_service_cores_parsed(void)
 676 {
 677         int idx;
 678         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
 679                 if (lcore_config[idx].core_role == ROLE_SERVICE)
 680                         return 1;
 681         }
 682         return 0;
 683 }
 684
 685 static int
 686 update_lcore_config(int *cores)
 687 {
 688         struct rte_config *cfg = rte_eal_get_configuration();
 689         unsigned int count = 0;
 690         unsigned int i;
 691         int ret = 0;
 692
 693         for (i = 0; i < RTE_MAX_LCORE; i++) {
 694                 if (cores[i] != -1) {
 695                         if (eal_cpu_detected(i) == 0) {
 696                                 RTE_LOG(ERR, EAL, "lcore %u unavailable\n", i);
 697                                 ret = -1;
 698                                 continue;
 699                         }
 700                         cfg->lcore_role[i] = ROLE_RTE;
 701                         count++;
 702                 } else {
 703                         cfg->lcore_role[i] = ROLE_OFF;
 704                 }
 705                 lcore_config[i].core_index = cores[i];
 706         }
 707         if (!ret)
 708                 cfg->lcore_count = count;
 709         return ret;
 710 }
 711
 712 static int
 713 eal_parse_coremask(const char *coremask, int *cores)
 714 {
 715         unsigned count = 0;
 716         int i, j, idx;
 717         int val;
 718         char c;
 719
 720         for (idx = 0; idx < RTE_MAX_LCORE; idx++)
 721                 cores[idx] = -1;
 722         idx = 0;
 723
 724         /* Remove all blank characters ahead and after .
 725          * Remove 0x/0X if exists.
 726          */
 727         while (isblank(*coremask))
 728                 coremask++;
 729         if (coremask[0] == '0' && ((coremask[1] == 'x')
 730                 || (coremask[1] == 'X')))
 731                 coremask += 2;
 732         i = strlen(coremask);
 733         while ((i > 0) && isblank(coremask[i - 1]))
 734                 i--;
 735         if (i == 0)
 736                 return -1;
 737
 738         for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
 739                 c = coremask[i];
 740                 if (isxdigit(c) == 0) {
 741                         /* invalid characters */
 742                         return -1;
 743                 }
 744                 val = xdigit2val(c);
 745                 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++)
 746                 {
 747                         if ((1 << j) & val) {
 748                                 cores[idx] = count;
 749                                 count++;
 750                         }
 751                 }
 752         }
 753         for (; i >= 0; i--)
 754                 if (coremask[i] != '0')
 755                         return -1;
 756         if (count == 0)
 757                 return -1;
 758         return 0;
 759 }
 760
 761 static int
 762 eal_parse_service_corelist(const char *corelist)
 763 {
 764         struct rte_config *cfg = rte_eal_get_configuration();
 765         int i;
 766         unsigned count = 0;
 767         char *end = NULL;
 768         uint32_t min, max, idx;
 769         uint32_t taken_lcore_count = 0;
 770
 771         if (corelist == NULL)
 772                 return -1;
 773
 774         /* Remove all blank characters ahead and after */
 775         while (isblank(*corelist))
 776                 corelist++;
 777         i = strlen(corelist);
 778         while ((i > 0) && isblank(corelist[i - 1]))
 779                 i--;
 780
 781         /* Get list of cores */
 782         min = RTE_MAX_LCORE;
 783         do {
 784                 while (isblank(*corelist))
 785                         corelist++;
 786                 if (*corelist == '\0')
 787                         return -1;
 788                 errno = 0;
 789                 idx = strtoul(corelist, &end, 10);
 790                 if (errno || end == NULL)
 791                         return -1;
 792                 if (idx >= RTE_MAX_LCORE)
 793                         return -1;
 794                 while (isblank(*end))
 795                         end++;
 796                 if (*end == '-') {
 797                         min = idx;
 798                 } else if ((*end == ',') || (*end == '\0')) {
 799                         max = idx;
 800                         if (min == RTE_MAX_LCORE)
 801                                 min = idx;
 802                         for (idx = min; idx <= max; idx++) {
 803                                 if (cfg->lcore_role[idx] != ROLE_SERVICE) {
 804                                         /* handle main lcore already parsed */
 805                                         uint32_t lcore = idx;
 806                                         if (cfg->main_lcore == lcore &&
 807                                                         main_lcore_parsed) {
 808                                                 RTE_LOG(ERR, EAL,
 809                                                         "Error: lcore %u is main lcore, cannot use as service core\n",
 810                                                         idx);
 811                                                 return -1;
 812                                         }
 813                                         if (cfg->lcore_role[idx] == ROLE_RTE)
 814                                                 taken_lcore_count++;
 815
 816                                         lcore_config[idx].core_role =
 817                                                         ROLE_SERVICE;
 818                                         count++;
 819                                 }
 820                         }
 821                         min = RTE_MAX_LCORE;
 822                 } else
 823                         return -1;
 824                 corelist = end + 1;
 825         } while (*end != '\0');
 826
 827         if (count == 0)
 828                 return -1;
 829
 830         if (core_parsed && taken_lcore_count != count) {
 831                 RTE_LOG(WARNING, EAL,
 832                         "Not all service cores were in the coremask. "
 833                         "Please ensure -c or -l includes service cores\n");
 834         }
 835
 836         return 0;
 837 }
 838
 839 static int
 840 eal_parse_corelist(const char *corelist, int *cores)
 841 {
 842         unsigned count = 0;
 843         char *end = NULL;
 844         int min, max;
 845         int idx;
 846
 847         for (idx = 0; idx < RTE_MAX_LCORE; idx++)
 848                 cores[idx] = -1;
 849
 850         /* Remove all blank characters ahead */
 851         while (isblank(*corelist))
 852                 corelist++;
 853
 854         /* Get list of cores */
 855         min = RTE_MAX_LCORE;
 856         do {
 857                 while (isblank(*corelist))
 858                         corelist++;
 859                 if (*corelist == '\0')
 860                         return -1;
 861                 errno = 0;
 862                 idx = strtol(corelist, &end, 10);
 863                 if (errno || end == NULL)
 864                         return -1;
 865                 if (idx < 0 || idx >= RTE_MAX_LCORE)
 866                         return -1;
 867                 while (isblank(*end))
 868                         end++;
 869                 if (*end == '-') {
 870                         min = idx;
 871                 } else if ((*end == ',') || (*end == '\0')) {
 872                         max = idx;
 873                         if (min == RTE_MAX_LCORE)
 874                                 min = idx;
 875                         for (idx = min; idx <= max; idx++) {
 876                                 if (cores[idx] == -1) {
 877                                         cores[idx] = count;
 878                                         count++;
 879                                 }
 880                         }
 881                         min = RTE_MAX_LCORE;
 882                 } else
 883                         return -1;
 884                 corelist = end + 1;
 885         } while (*end != '\0');
 886
 887         if (count == 0)
 888                 return -1;
 889         return 0;
 890 }
 891
 892 /* Changes the lcore id of the main thread */
 893 static int
 894 eal_parse_main_lcore(const char *arg)
 895 {
 896         char *parsing_end;
 897         struct rte_config *cfg = rte_eal_get_configuration();
 898
 899         errno = 0;
 900         cfg->main_lcore = (uint32_t) strtol(arg, &parsing_end, 0);
 901         if (errno || parsing_end[0] != 0)
 902                 return -1;
 903         if (cfg->main_lcore >= RTE_MAX_LCORE)
 904                 return -1;
 905         main_lcore_parsed = 1;
 906
 907         /* ensure main core is not used as service core */
 908         if (lcore_config[cfg->main_lcore].core_role == ROLE_SERVICE) {
 909                 RTE_LOG(ERR, EAL,
 910                         "Error: Main lcore is used as a service core\n");
 911                 return -1;
 912         }
 913
 914         return 0;
 915 }
 916
 917 /*
 918  * Parse elem, the elem could be single number/range or '(' ')' group
 919  * 1) A single number elem, it's just a simple digit. e.g. 9
 920  * 2) A single range elem, two digits with a '-' between. e.g. 2-6
 921  * 3) A group elem, combines multiple 1) or 2) with '( )'. e.g (0,2-4,6)
 922  *    Within group elem, '-' used for a range separator;
 923  *                       ',' used for a single number.
 924  */
 925 static int
 926 eal_parse_set(const char *input, rte_cpuset_t *set)
 927 {
 928         unsigned idx;
 929         const char *str = input;
 930         char *end = NULL;
 931         unsigned min, max;
 932
 933         CPU_ZERO(set);
 934
 935         while (isblank(*str))
 936                 str++;
 937
 938         /* only digit or left bracket is qualify for start point */
 939         if ((!isdigit(*str) && *str != '(') || *str == '\0')
 940                 return -1;
 941
 942         /* process single number or single range of number */
 943         if (*str != '(') {
 944                 errno = 0;
 945                 idx = strtoul(str, &end, 10);
 946                 if (errno || end == NULL || idx >= CPU_SETSIZE)
 947                         return -1;
 948                 else {
 949                         while (isblank(*end))
 950                                 end++;
 951
 952                         min = idx;
 953                         max = idx;
 954                         if (*end == '-') {
 955                                 /* process single <number>-<number> */
 956                                 end++;
 957                                 while (isblank(*end))
 958                                         end++;
 959                                 if (!isdigit(*end))
 960                                         return -1;
 961
 962                                 errno = 0;
 963                                 idx = strtoul(end, &end, 10);
 964                                 if (errno || end == NULL || idx >= CPU_SETSIZE)
 965                                         return -1;
 966                                 max = idx;
 967                                 while (isblank(*end))
 968                                         end++;
 969                                 if (*end != ',' && *end != '\0')
 970                                         return -1;
 971                         }
 972
 973                         if (*end != ',' && *end != '\0' &&
 974                             *end != '@')
 975                                 return -1;
 976
 977                         for (idx = RTE_MIN(min, max);
 978                              idx <= RTE_MAX(min, max); idx++)
 979                                 CPU_SET(idx, set);
 980
 981                         return end - input;
 982                 }
 983         }
 984
 985         /* process set within bracket */
 986         str++;
 987         while (isblank(*str))
 988                 str++;
 989         if (*str == '\0')
 990                 return -1;
 991
 992         min = RTE_MAX_LCORE;
 993         do {
 994
 995                 /* go ahead to the first digit */
 996                 while (isblank(*str))
 997                         str++;
 998                 if (!isdigit(*str))
 999                         return -1;
1000
1001                 /* get the digit value */
1002                 errno = 0;
1003                 idx = strtoul(str, &end, 10);
1004                 if (errno || end == NULL || idx >= CPU_SETSIZE)
1005                         return -1;
1006
1007                 /* go ahead to separator '-',',' and ')' */
1008                 while (isblank(*end))
1009                         end++;
1010                 if (*end == '-') {
1011                         if (min == RTE_MAX_LCORE)
1012                                 min = idx;
1013                         else /* avoid continuous '-' */
1014                                 return -1;
1015                 } else if ((*end == ',') || (*end == ')')) {
1016                         max = idx;
1017                         if (min == RTE_MAX_LCORE)
1018                                 min = idx;
1019                         for (idx = RTE_MIN(min, max);
1020                              idx <= RTE_MAX(min, max); idx++)
1021                                 CPU_SET(idx, set);
1022
1023                         min = RTE_MAX_LCORE;
1024                 } else
1025                         return -1;
1026
1027                 str = end + 1;
1028         } while (*end != '\0' && *end != ')');
1029
1030         /*
1031          * to avoid failure that tail blank makes end character check fail
1032          * in eal_parse_lcores( )
1033          */
1034         while (isblank(*str))
1035                 str++;
1036
1037         return str - input;
1038 }
1039
1040 static int
1041 check_cpuset(rte_cpuset_t *set)
1042 {
1043         unsigned int idx;
1044
1045         for (idx = 0; idx < CPU_SETSIZE; idx++) {
1046                 if (!CPU_ISSET(idx, set))
1047                         continue;
1048
1049                 if (eal_cpu_detected(idx) == 0) {
1050                         RTE_LOG(ERR, EAL, "core %u "
1051                                 "unavailable\n", idx);
1052                         return -1;
1053                 }
1054         }
1055         return 0;
1056 }
1057
1058 /*
1059  * The format pattern: --lcores='<lcores[@cpus]>[<,lcores[@cpus]>...]'
1060  * lcores, cpus could be a single digit/range or a group.
1061  * '(' and ')' are necessary if it's a group.
1062  * If not supply '@cpus', the value of cpus uses the same as lcores.
1063  * e.g. '1,2@(5-7),(3-5)@(0,2),(0,6),7-8' means start 9 EAL thread as below
1064  *   lcore 0 runs on cpuset 0x41 (cpu 0,6)
1065  *   lcore 1 runs on cpuset 0x2 (cpu 1)
1066  *   lcore 2 runs on cpuset 0xe0 (cpu 5,6,7)
1067  *   lcore 3,4,5 runs on cpuset 0x5 (cpu 0,2)
1068  *   lcore 6 runs on cpuset 0x41 (cpu 0,6)
1069  *   lcore 7 runs on cpuset 0x80 (cpu 7)
1070  *   lcore 8 runs on cpuset 0x100 (cpu 8)
1071  */
1072 static int
1073 eal_parse_lcores(const char *lcores)
1074 {
1075         struct rte_config *cfg = rte_eal_get_configuration();
1076         rte_cpuset_t lcore_set;
1077         unsigned int set_count;
1078         unsigned idx = 0;
1079         unsigned count = 0;
1080         const char *lcore_start = NULL;
1081         const char *end = NULL;
1082         int offset;
1083         rte_cpuset_t cpuset;
1084         int lflags;
1085         int ret = -1;
1086
1087         if (lcores == NULL)
1088                 return -1;
1089
1090         /* Remove all blank characters ahead and after */
1091         while (isblank(*lcores))
1092                 lcores++;
1093
1094         CPU_ZERO(&cpuset);
1095
1096         /* Reset lcore config */
1097         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
1098                 cfg->lcore_role[idx] = ROLE_OFF;
1099                 lcore_config[idx].core_index = -1;
1100                 CPU_ZERO(&lcore_config[idx].cpuset);
1101         }
1102
1103         /* Get list of cores */
1104         do {
1105                 while (isblank(*lcores))
1106                         lcores++;
1107                 if (*lcores == '\0')
1108                         goto err;
1109
1110                 lflags = 0;
1111
1112                 /* record lcore_set start point */
1113                 lcore_start = lcores;
1114
1115                 /* go across a complete bracket */
1116                 if (*lcore_start == '(') {
1117                         lcores += strcspn(lcores, ")");
1118                         if (*lcores++ == '\0')
1119                                 goto err;
1120                 }
1121
1122                 /* scan the separator '@', ','(next) or '\0'(finish) */
1123                 lcores += strcspn(lcores, "@,");
1124
1125                 if (*lcores == '@') {
1126                         /* explicit assign cpuset and update the end cursor */
1127                         offset = eal_parse_set(lcores + 1, &cpuset);
1128                         if (offset < 0)
1129                                 goto err;
1130                         end = lcores + 1 + offset;
1131                 } else { /* ',' or '\0' */
1132                         /* haven't given cpuset, current loop done */
1133                         end = lcores;
1134
1135                         /* go back to check <number>-<number> */
1136                         offset = strcspn(lcore_start, "(-");
1137                         if (offset < (end - lcore_start) &&
1138                             *(lcore_start + offset) != '(')
1139                                 lflags = 1;
1140                 }
1141
1142                 if (*end != ',' && *end != '\0')
1143                         goto err;
1144
1145                 /* parse lcore_set from start point */
1146                 if (eal_parse_set(lcore_start, &lcore_set) < 0)
1147                         goto err;
1148
1149                 /* without '@', by default using lcore_set as cpuset */
1150                 if (*lcores != '@')
1151                         rte_memcpy(&cpuset, &lcore_set, sizeof(cpuset));
1152
1153                 set_count = CPU_COUNT(&lcore_set);
1154                 /* start to update lcore_set */
1155                 for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
1156                         if (!CPU_ISSET(idx, &lcore_set))
1157                                 continue;
1158                         set_count--;
1159
1160                         if (cfg->lcore_role[idx] != ROLE_RTE) {
1161                                 lcore_config[idx].core_index = count;
1162                                 cfg->lcore_role[idx] = ROLE_RTE;
1163                                 count++;
1164                         }
1165
1166                         if (lflags) {
1167                                 CPU_ZERO(&cpuset);
1168                                 CPU_SET(idx, &cpuset);
1169                         }
1170
1171                         if (check_cpuset(&cpuset) < 0)
1172                                 goto err;
1173                         rte_memcpy(&lcore_config[idx].cpuset, &cpuset,
1174                                    sizeof(rte_cpuset_t));
1175                 }
1176
1177                 /* some cores from the lcore_set can't be handled by EAL */
1178                 if (set_count != 0)
1179                         goto err;
1180
1181                 lcores = end + 1;
1182         } while (*end != '\0');
1183
1184         if (count == 0)
1185                 goto err;
1186
1187         cfg->lcore_count = count;
1188         ret = 0;
1189
1190 err:
1191
1192         return ret;
1193 }
1194
1195 #ifndef RTE_EXEC_ENV_WINDOWS
1196 static int
1197 eal_parse_syslog(const char *facility, struct internal_config *conf)
1198 {
1199         int i;
1200         static const struct {
1201                 const char *name;
1202                 int value;
1203         } map[] = {
1204                 { "auth", LOG_AUTH },
1205                 { "cron", LOG_CRON },
1206                 { "daemon", LOG_DAEMON },
1207                 { "ftp", LOG_FTP },
1208                 { "kern", LOG_KERN },
1209                 { "lpr", LOG_LPR },
1210                 { "mail", LOG_MAIL },
1211                 { "news", LOG_NEWS },
1212                 { "syslog", LOG_SYSLOG },
1213                 { "user", LOG_USER },
1214                 { "uucp", LOG_UUCP },
1215                 { "local0", LOG_LOCAL0 },
1216                 { "local1", LOG_LOCAL1 },
1217                 { "local2", LOG_LOCAL2 },
1218                 { "local3", LOG_LOCAL3 },
1219                 { "local4", LOG_LOCAL4 },
1220                 { "local5", LOG_LOCAL5 },
1221                 { "local6", LOG_LOCAL6 },
1222                 { "local7", LOG_LOCAL7 },
1223                 { NULL, 0 }
1224         };
1225
1226         for (i = 0; map[i].name; i++) {
1227                 if (!strcmp(facility, map[i].name)) {
1228                         conf->syslog_facility = map[i].value;
1229                         return 0;
1230                 }
1231         }
1232         return -1;
1233 }
1234 #endif
1235
1236 static void
1237 eal_log_usage(void)
1238 {
1239         unsigned int level;
1240
1241         printf("Log type is a pattern matching items of this list"
1242                         " (plugins may be missing):\n");
1243         rte_log_list_types(stdout, "\t");
1244         printf("\n");
1245         printf("Syntax using globbing pattern:     ");
1246         printf("--"OPT_LOG_LEVEL" pattern:level\n");
1247         printf("Syntax using regular expression:   ");
1248         printf("--"OPT_LOG_LEVEL" regexp,level\n");
1249         printf("Syntax for the global level:       ");
1250         printf("--"OPT_LOG_LEVEL" level\n");
1251         printf("Logs are emitted if allowed by both global and specific levels.\n");
1252         printf("\n");
1253         printf("Log level can be a number or the first letters of its name:\n");
1254         for (level = 1; level <= RTE_LOG_MAX; level++)
1255                 printf("\t%d   %s\n", level, eal_log_level2str(level));
1256 }
1257
1258 static int
1259 eal_parse_log_priority(const char *level)
1260 {
1261         size_t len = strlen(level);
1262         unsigned long tmp;
1263         char *end;
1264         unsigned int i;
1265
1266         if (len == 0)
1267                 return -1;
1268
1269         /* look for named values, skip 0 which is not a valid level */
1270         for (i = 1; i <= RTE_LOG_MAX; i++) {
1271                 if (strncmp(eal_log_level2str(i), level, len) == 0)
1272                         return i;
1273         }
1274
1275         /* not a string, maybe it is numeric */
1276         errno = 0;
1277         tmp = strtoul(level, &end, 0);
1278
1279         /* check for errors */
1280         if (errno != 0 || end == NULL || *end != '\0' ||
1281             tmp >= UINT32_MAX)
1282                 return -1;
1283
1284         return tmp;
1285 }
1286
1287 static int
1288 eal_parse_log_level(const char *arg)
1289 {
1290         const char *pattern = NULL;
1291         const char *regex = NULL;
1292         char *str, *level;
1293         int priority;
1294
1295         if (strcmp(arg, "help") == 0) {
1296                 eal_log_usage();
1297                 exit(EXIT_SUCCESS);
1298         }
1299
1300         str = strdup(arg);
1301         if (str == NULL)
1302                 return -1;
1303
1304         if ((level = strchr(str, ','))) {
1305                 regex = str;
1306                 *level++ = '\0';
1307         } else if ((level = strchr(str, ':'))) {
1308                 pattern = str;
1309                 *level++ = '\0';
1310         } else {
1311                 level = str;
1312         }
1313
1314         priority = eal_parse_log_priority(level);
1315         if (priority <= 0) {
1316                 fprintf(stderr, "Invalid log level: %s\n", level);
1317                 goto fail;
1318         }
1319         if (priority > (int)RTE_LOG_MAX) {
1320                 fprintf(stderr, "Log level %d higher than maximum (%d)\n",
1321                                 priority, RTE_LOG_MAX);
1322                 priority = RTE_LOG_MAX;
1323         }
1324
1325         if (regex) {
1326                 if (rte_log_set_level_regexp(regex, priority) < 0) {
1327                         fprintf(stderr, "cannot set log level %s,%d\n",
1328                                 regex, priority);
1329                         goto fail;
1330                 }
1331                 if (eal_log_save_regexp(regex, priority) < 0)
1332                         goto fail;
1333         } else if (pattern) {
1334                 if (rte_log_set_level_pattern(pattern, priority) < 0) {
1335                         fprintf(stderr, "cannot set log level %s:%d\n",
1336                                 pattern, priority);
1337                         goto fail;
1338                 }
1339                 if (eal_log_save_pattern(pattern, priority) < 0)
1340                         goto fail;
1341         } else {
1342                 rte_log_set_global_level(priority);
1343         }
1344
1345         free(str);
1346         return 0;
1347
1348 fail:
1349         free(str);
1350         return -1;
1351 }
1352
1353 static enum rte_proc_type_t
1354 eal_parse_proc_type(const char *arg)
1355 {
1356         if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
1357                 return RTE_PROC_PRIMARY;
1358         if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
1359                 return RTE_PROC_SECONDARY;
1360         if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
1361                 return RTE_PROC_AUTO;
1362
1363         return RTE_PROC_INVALID;
1364 }
1365
1366 static int
1367 eal_parse_iova_mode(const char *name)
1368 {
1369         int mode;
1370         struct internal_config *internal_conf =
1371                 eal_get_internal_configuration();
1372
1373         if (name == NULL)
1374                 return -1;
1375
1376         if (!strcmp("pa", name))
1377                 mode = RTE_IOVA_PA;
1378         else if (!strcmp("va", name))
1379                 mode = RTE_IOVA_VA;
1380         else
1381                 return -1;
1382
1383         internal_conf->iova_mode = mode;
1384         return 0;
1385 }
1386
1387 static int
1388 eal_parse_simd_bitwidth(const char *arg)
1389 {
1390         char *end;
1391         unsigned long bitwidth;
1392         int ret;
1393         struct internal_config *internal_conf =
1394                 eal_get_internal_configuration();
1395
1396         if (arg == NULL || arg[0] == '\0')
1397                 return -1;
1398
1399         errno = 0;
1400         bitwidth = strtoul(arg, &end, 0);
1401
1402         /* check for errors */
1403         if (errno != 0 || end == NULL || *end != '\0' || bitwidth > RTE_VECT_SIMD_MAX)
1404                 return -1;
1405
1406         if (bitwidth == 0)
1407                 bitwidth = (unsigned long) RTE_VECT_SIMD_MAX;
1408         ret = rte_vect_set_max_simd_bitwidth(bitwidth);
1409         if (ret < 0)
1410                 return -1;
1411         internal_conf->max_simd_bitwidth.forced = 1;
1412         return 0;
1413 }
1414
1415 static int
1416 eal_parse_base_virtaddr(const char *arg)
1417 {
1418         char *end;
1419         uint64_t addr;
1420         struct internal_config *internal_conf =
1421                 eal_get_internal_configuration();
1422
1423         errno = 0;
1424         addr = strtoull(arg, &end, 16);
1425
1426         /* check for errors */
1427         if ((errno != 0) || (arg[0] == '\0') || end == NULL || (*end != '\0'))
1428                 return -1;
1429
1430         /* make sure we don't exceed 32-bit boundary on 32-bit target */
1431 #ifndef RTE_ARCH_64
1432         if (addr >= UINTPTR_MAX)
1433                 return -1;
1434 #endif
1435
1436         /* align the addr on 16M boundary, 16MB is the minimum huge page
1437          * size on IBM Power architecture. If the addr is aligned to 16MB,
1438          * it can align to 2MB for x86. So this alignment can also be used
1439          * on x86 and other architectures.
1440          */
1441         internal_conf->base_virtaddr =
1442                 RTE_PTR_ALIGN_CEIL((uintptr_t)addr, (size_t)RTE_PGSIZE_16M);
1443
1444         return 0;
1445 }
1446
1447 /* caller is responsible for freeing the returned string */
1448 static char *
1449 available_cores(void)
1450 {
1451         char *str = NULL;
1452         int previous;
1453         int sequence;
1454         char *tmp;
1455         int idx;
1456
1457         /* find the first available cpu */
1458         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
1459                 if (eal_cpu_detected(idx) == 0)
1460                         continue;
1461                 break;
1462         }
1463         if (idx >= RTE_MAX_LCORE)
1464                 return NULL;
1465
1466         /* first sequence */
1467         if (asprintf(&str, "%d", idx) < 0)
1468                 return NULL;
1469         previous = idx;
1470         sequence = 0;
1471
1472         for (idx++ ; idx < RTE_MAX_LCORE; idx++) {
1473                 if (eal_cpu_detected(idx) == 0)
1474                         continue;
1475
1476                 if (idx == previous + 1) {
1477                         previous = idx;
1478                         sequence = 1;
1479                         continue;
1480                 }
1481
1482                 /* finish current sequence */
1483                 if (sequence) {
1484                         if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
1485                                 free(str);
1486                                 return NULL;
1487                         }
1488                         free(str);
1489                         str = tmp;
1490                 }
1491
1492                 /* new sequence */
1493                 if (asprintf(&tmp, "%s,%d", str, idx) < 0) {
1494                         free(str);
1495                         return NULL;
1496                 }
1497                 free(str);
1498                 str = tmp;
1499                 previous = idx;
1500                 sequence = 0;
1501         }
1502
1503         /* finish last sequence */
1504         if (sequence) {
1505                 if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
1506                         free(str);
1507                         return NULL;
1508                 }
1509                 free(str);
1510                 str = tmp;
1511         }
1512
1513         return str;
1514 }
1515
1516 int
1517 eal_parse_common_option(int opt, const char *optarg,
1518                         struct internal_config *conf)
1519 {
1520         static int b_used;
1521         static int a_used;
1522
1523         switch (opt) {
1524         case OPT_PCI_BLACKLIST_NUM:
1525                 fprintf(stderr,
1526                         "Option --pci-blacklist is deprecated, use -b, --block instead\n");
1527                 /* fallthrough */
1528         case 'b':
1529                 if (a_used)
1530                         goto ba_conflict;
1531                 if (eal_option_device_add(RTE_DEVTYPE_BLOCKED, optarg) < 0)
1532                         return -1;
1533                 b_used = 1;
1534                 break;
1535
1536         case 'w':
1537                 fprintf(stderr,
1538                         "Option -w, --pci-whitelist is deprecated, use -a, --allow option instead\n");
1539                 /* fallthrough */
1540         case 'a':
1541                 if (b_used)
1542                         goto ba_conflict;
1543                 if (eal_option_device_add(RTE_DEVTYPE_ALLOWED, optarg) < 0)
1544                         return -1;
1545                 a_used = 1;
1546                 break;
1547         /* coremask */
1548         case 'c': {
1549                 int lcore_indexes[RTE_MAX_LCORE];
1550
1551                 if (eal_service_cores_parsed())
1552                         RTE_LOG(WARNING, EAL,
1553                                 "Service cores parsed before dataplane cores. Please ensure -c is before -s or -S\n");
1554                 if (eal_parse_coremask(optarg, lcore_indexes) < 0) {
1555                         RTE_LOG(ERR, EAL, "invalid coremask syntax\n");
1556                         return -1;
1557                 }
1558                 if (update_lcore_config(lcore_indexes) < 0) {
1559                         char *available = available_cores();
1560
1561                         RTE_LOG(ERR, EAL,
1562                                 "invalid coremask, please check specified cores are part of %s\n",
1563                                 available);
1564                         free(available);
1565                         return -1;
1566                 }
1567
1568                 if (core_parsed) {
1569                         RTE_LOG(ERR, EAL, "Option -c is ignored, because (%s) is set!\n",
1570                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1571                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1572                                 "-c");
1573                         return -1;
1574                 }
1575
1576                 core_parsed = LCORE_OPT_MSK;
1577                 break;
1578         }
1579         /* corelist */
1580         case 'l': {
1581                 int lcore_indexes[RTE_MAX_LCORE];
1582
1583                 if (eal_service_cores_parsed())
1584                         RTE_LOG(WARNING, EAL,
1585                                 "Service cores parsed before dataplane cores. Please ensure -l is before -s or -S\n");
1586
1587                 if (eal_parse_corelist(optarg, lcore_indexes) < 0) {
1588                         RTE_LOG(ERR, EAL, "invalid core list syntax\n");
1589                         return -1;
1590                 }
1591                 if (update_lcore_config(lcore_indexes) < 0) {
1592                         char *available = available_cores();
1593
1594                         RTE_LOG(ERR, EAL,
1595                                 "invalid core list, please check specified cores are part of %s\n",
1596                                 available);
1597                         free(available);
1598                         return -1;
1599                 }
1600
1601                 if (core_parsed) {
1602                         RTE_LOG(ERR, EAL, "Option -l is ignored, because (%s) is set!\n",
1603                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1604                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1605                                 "-l");
1606                         return -1;
1607                 }
1608
1609                 core_parsed = LCORE_OPT_LST;
1610                 break;
1611         }
1612         /* service coremask */
1613         case 's':
1614                 if (eal_parse_service_coremask(optarg) < 0) {
1615                         RTE_LOG(ERR, EAL, "invalid service coremask\n");
1616                         return -1;
1617                 }
1618                 break;
1619         /* service corelist */
1620         case 'S':
1621                 if (eal_parse_service_corelist(optarg) < 0) {
1622                         RTE_LOG(ERR, EAL, "invalid service core list\n");
1623                         return -1;
1624                 }
1625                 break;
1626         /* size of memory */
1627         case 'm':
1628                 conf->memory = atoi(optarg);
1629                 conf->memory *= 1024ULL;
1630                 conf->memory *= 1024ULL;
1631                 mem_parsed = 1;
1632                 break;
1633         /* force number of channels */
1634         case 'n':
1635                 conf->force_nchannel = atoi(optarg);
1636                 if (conf->force_nchannel == 0) {
1637                         RTE_LOG(ERR, EAL, "invalid channel number\n");
1638                         return -1;
1639                 }
1640                 break;
1641         /* force number of ranks */
1642         case 'r':
1643                 conf->force_nrank = atoi(optarg);
1644                 if (conf->force_nrank == 0 ||
1645                     conf->force_nrank > 16) {
1646                         RTE_LOG(ERR, EAL, "invalid rank number\n");
1647                         return -1;
1648                 }
1649                 break;
1650         /* force loading of external driver */
1651         case 'd':
1652                 if (eal_plugin_add(optarg) == -1)
1653                         return -1;
1654                 break;
1655         case 'v':
1656                 /* since message is explicitly requested by user, we
1657                  * write message at highest log level so it can always
1658                  * be seen
1659                  * even if info or warning messages are disabled */
1660                 RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
1661                 break;
1662
1663         /* long options */
1664         case OPT_HUGE_UNLINK_NUM:
1665                 conf->hugepage_unlink = 1;
1666                 break;
1667
1668         case OPT_NO_HUGE_NUM:
1669                 conf->no_hugetlbfs = 1;
1670                 /* no-huge is legacy mem */
1671                 conf->legacy_mem = 1;
1672                 break;
1673
1674         case OPT_NO_PCI_NUM:
1675                 conf->no_pci = 1;
1676                 break;
1677
1678         case OPT_NO_HPET_NUM:
1679                 conf->no_hpet = 1;
1680                 break;
1681
1682         case OPT_VMWARE_TSC_MAP_NUM:
1683                 conf->vmware_tsc_map = 1;
1684                 break;
1685
1686         case OPT_NO_SHCONF_NUM:
1687                 conf->no_shconf = 1;
1688                 break;
1689
1690         case OPT_IN_MEMORY_NUM:
1691                 conf->in_memory = 1;
1692                 /* in-memory is a superset of noshconf and huge-unlink */
1693                 conf->no_shconf = 1;
1694                 conf->hugepage_unlink = 1;
1695                 break;
1696
1697         case OPT_PROC_TYPE_NUM:
1698                 conf->process_type = eal_parse_proc_type(optarg);
1699                 break;
1700
1701         case OPT_MASTER_LCORE_NUM:
1702                 fprintf(stderr,
1703                         "Option --" OPT_MASTER_LCORE
1704                         " is deprecated use " OPT_MAIN_LCORE "\n");
1705                 /* fallthrough */
1706         case OPT_MAIN_LCORE_NUM:
1707                 if (eal_parse_main_lcore(optarg) < 0) {
1708                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1709                                         OPT_MAIN_LCORE "\n");
1710                         return -1;
1711                 }
1712                 break;
1713
1714         case OPT_VDEV_NUM:
1715                 if (eal_option_device_add(RTE_DEVTYPE_VIRTUAL,
1716                                 optarg) < 0) {
1717                         return -1;
1718                 }
1719                 break;
1720
1721 #ifndef RTE_EXEC_ENV_WINDOWS
1722         case OPT_SYSLOG_NUM:
1723                 if (eal_parse_syslog(optarg, conf) < 0) {
1724                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1725                                         OPT_SYSLOG "\n");
1726                         return -1;
1727                 }
1728                 break;
1729 #endif
1730
1731         case OPT_LOG_LEVEL_NUM: {
1732                 if (eal_parse_log_level(optarg) < 0) {
1733                         RTE_LOG(ERR, EAL,
1734                                 "invalid parameters for --"
1735                                 OPT_LOG_LEVEL "\n");
1736                         return -1;
1737                 }
1738                 break;
1739         }
1740
1741 #ifndef RTE_EXEC_ENV_WINDOWS
1742         case OPT_TRACE_NUM: {
1743                 if (eal_trace_args_save(optarg) < 0) {
1744                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1745                                 OPT_TRACE "\n");
1746                         return -1;
1747                 }
1748                 break;
1749         }
1750
1751         case OPT_TRACE_DIR_NUM: {
1752                 if (eal_trace_dir_args_save(optarg) < 0) {
1753                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1754                                 OPT_TRACE_DIR "\n");
1755                         return -1;
1756                 }
1757                 break;
1758         }
1759
1760         case OPT_TRACE_BUF_SIZE_NUM: {
1761                 if (eal_trace_bufsz_args_save(optarg) < 0) {
1762                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1763                                 OPT_TRACE_BUF_SIZE "\n");
1764                         return -1;
1765                 }
1766                 break;
1767         }
1768
1769         case OPT_TRACE_MODE_NUM: {
1770                 if (eal_trace_mode_args_save(optarg) < 0) {
1771                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1772                                 OPT_TRACE_MODE "\n");
1773                         return -1;
1774                 }
1775                 break;
1776         }
1777 #endif /* !RTE_EXEC_ENV_WINDOWS */
1778
1779         case OPT_LCORES_NUM:
1780                 if (eal_parse_lcores(optarg) < 0) {
1781                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1782                                 OPT_LCORES "\n");
1783                         return -1;
1784                 }
1785
1786                 if (core_parsed) {
1787                         RTE_LOG(ERR, EAL, "Option --lcore is ignored, because (%s) is set!\n",
1788                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1789                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1790                                 "--lcore");
1791                         return -1;
1792                 }
1793
1794                 core_parsed = LCORE_OPT_MAP;
1795                 break;
1796         case OPT_LEGACY_MEM_NUM:
1797                 conf->legacy_mem = 1;
1798                 break;
1799         case OPT_SINGLE_FILE_SEGMENTS_NUM:
1800                 conf->single_file_segments = 1;
1801                 break;
1802         case OPT_IOVA_MODE_NUM:
1803                 if (eal_parse_iova_mode(optarg) < 0) {
1804                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1805                                 OPT_IOVA_MODE "\n");
1806                         return -1;
1807                 }
1808                 break;
1809         case OPT_BASE_VIRTADDR_NUM:
1810                 if (eal_parse_base_virtaddr(optarg) < 0) {
1811                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1812                                         OPT_BASE_VIRTADDR "\n");
1813                         return -1;
1814                 }
1815                 break;
1816         case OPT_TELEMETRY_NUM:
1817                 break;
1818         case OPT_NO_TELEMETRY_NUM:
1819                 conf->no_telemetry = 1;
1820                 break;
1821         case OPT_FORCE_MAX_SIMD_BITWIDTH_NUM:
1822                 if (eal_parse_simd_bitwidth(optarg) < 0) {
1823                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1824                                         OPT_FORCE_MAX_SIMD_BITWIDTH "\n");
1825                         return -1;
1826                 }
1827                 break;
1828
1829         /* don't know what to do, leave this to caller */
1830         default:
1831                 return 1;
1832
1833         }
1834
1835         return 0;
1836
1837 ba_conflict:
1838         RTE_LOG(ERR, EAL,
1839                 "Options allow (-a) and block (-b) can't be used at the same time\n");
1840         return -1;
1841 }
1842
1843 static void
1844 eal_auto_detect_cores(struct rte_config *cfg)
1845 {
1846         unsigned int lcore_id;
1847         unsigned int removed = 0;
1848         rte_cpuset_t affinity_set;
1849
1850         if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1851                                 &affinity_set))
1852                 CPU_ZERO(&affinity_set);
1853
1854         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1855                 if (cfg->lcore_role[lcore_id] == ROLE_RTE &&
1856                     !CPU_ISSET(lcore_id, &affinity_set)) {
1857                         cfg->lcore_role[lcore_id] = ROLE_OFF;
1858                         removed++;
1859                 }
1860         }
1861
1862         cfg->lcore_count -= removed;
1863 }
1864
1865 static void
1866 compute_ctrl_threads_cpuset(struct internal_config *internal_cfg)
1867 {
1868         rte_cpuset_t *cpuset = &internal_cfg->ctrl_cpuset;
1869         rte_cpuset_t default_set;
1870         unsigned int lcore_id;
1871
1872         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1873                 if (rte_lcore_has_role(lcore_id, ROLE_OFF))
1874                         continue;
1875                 RTE_CPU_OR(cpuset, cpuset, &lcore_config[lcore_id].cpuset);
1876         }
1877         RTE_CPU_NOT(cpuset, cpuset);
1878
1879         if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1880                                 &default_set))
1881                 CPU_ZERO(&default_set);
1882
1883         RTE_CPU_AND(cpuset, cpuset, &default_set);
1884
1885         /* if no remaining cpu, use main lcore cpu affinity */
1886         if (!CPU_COUNT(cpuset)) {
1887                 memcpy(cpuset, &lcore_config[rte_get_main_lcore()].cpuset,
1888                         sizeof(*cpuset));
1889         }
1890 }
1891
1892 int
1893 eal_cleanup_config(struct internal_config *internal_cfg)
1894 {
1895         if (internal_cfg->hugefile_prefix != NULL)
1896                 free(internal_cfg->hugefile_prefix);
1897         if (internal_cfg->hugepage_dir != NULL)
1898                 free(internal_cfg->hugepage_dir);
1899         if (internal_cfg->user_mbuf_pool_ops_name != NULL)
1900                 free(internal_cfg->user_mbuf_pool_ops_name);
1901
1902         return 0;
1903 }
1904
1905 int
1906 eal_adjust_config(struct internal_config *internal_cfg)
1907 {
1908         int i;
1909         struct rte_config *cfg = rte_eal_get_configuration();
1910         struct internal_config *internal_conf =
1911                 eal_get_internal_configuration();
1912
1913         if (!core_parsed)
1914                 eal_auto_detect_cores(cfg);
1915
1916         if (internal_conf->process_type == RTE_PROC_AUTO)
1917                 internal_conf->process_type = eal_proc_type_detect();
1918
1919         /* default main lcore is the first one */
1920         if (!main_lcore_parsed) {
1921                 cfg->main_lcore = rte_get_next_lcore(-1, 0, 0);
1922                 if (cfg->main_lcore >= RTE_MAX_LCORE)
1923                         return -1;
1924                 lcore_config[cfg->main_lcore].core_role = ROLE_RTE;
1925         }
1926
1927         compute_ctrl_threads_cpuset(internal_cfg);
1928
1929         /* if no memory amounts were requested, this will result in 0 and
1930          * will be overridden later, right after eal_hugepage_info_init() */
1931         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
1932                 internal_cfg->memory += internal_cfg->socket_mem[i];
1933
1934         return 0;
1935 }
1936
1937 int
1938 eal_check_common_options(struct internal_config *internal_cfg)
1939 {
1940         struct rte_config *cfg = rte_eal_get_configuration();
1941         const struct internal_config *internal_conf =
1942                 eal_get_internal_configuration();
1943
1944         if (cfg->lcore_role[cfg->main_lcore] != ROLE_RTE) {
1945                 RTE_LOG(ERR, EAL, "Main lcore is not enabled for DPDK\n");
1946                 return -1;
1947         }
1948
1949         if (internal_cfg->process_type == RTE_PROC_INVALID) {
1950                 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
1951                 return -1;
1952         }
1953         if (internal_cfg->hugefile_prefix != NULL &&
1954                         strlen(internal_cfg->hugefile_prefix) < 1) {
1955                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_FILE_PREFIX " option\n");
1956                 return -1;
1957         }
1958         if (internal_cfg->hugepage_dir != NULL &&
1959                         strlen(internal_cfg->hugepage_dir) < 1) {
1960                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_HUGE_DIR" option\n");
1961                 return -1;
1962         }
1963         if (internal_cfg->user_mbuf_pool_ops_name != NULL &&
1964                         strlen(internal_cfg->user_mbuf_pool_ops_name) < 1) {
1965                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_MBUF_POOL_OPS_NAME" option\n");
1966                 return -1;
1967         }
1968         if (strchr(eal_get_hugefile_prefix(), '%') != NULL) {
1969                 RTE_LOG(ERR, EAL, "Invalid char, '%%', in --"OPT_FILE_PREFIX" "
1970                         "option\n");
1971                 return -1;
1972         }
1973         if (mem_parsed && internal_cfg->force_sockets == 1) {
1974                 RTE_LOG(ERR, EAL, "Options -m and --"OPT_SOCKET_MEM" cannot "
1975                         "be specified at the same time\n");
1976                 return -1;
1977         }
1978         if (internal_cfg->no_hugetlbfs && internal_cfg->force_sockets == 1) {
1979                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_MEM" cannot "
1980                         "be specified together with --"OPT_NO_HUGE"\n");
1981                 return -1;
1982         }
1983         if (internal_cfg->no_hugetlbfs && internal_cfg->hugepage_unlink &&
1984                         !internal_cfg->in_memory) {
1985                 RTE_LOG(ERR, EAL, "Option --"OPT_HUGE_UNLINK" cannot "
1986                         "be specified together with --"OPT_NO_HUGE"\n");
1987                 return -1;
1988         }
1989         if (internal_conf->force_socket_limits && internal_conf->legacy_mem) {
1990                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_LIMIT
1991                         " is only supported in non-legacy memory mode\n");
1992         }
1993         if (internal_cfg->single_file_segments &&
1994                         internal_cfg->hugepage_unlink &&
1995                         !internal_cfg->in_memory) {
1996                 RTE_LOG(ERR, EAL, "Option --"OPT_SINGLE_FILE_SEGMENTS" is "
1997                         "not compatible with --"OPT_HUGE_UNLINK"\n");
1998                 return -1;
1999         }
2000         if (internal_cfg->legacy_mem &&
2001                         internal_cfg->in_memory) {
2002                 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
2003                                 "with --"OPT_IN_MEMORY"\n");
2004                 return -1;
2005         }
2006         if (internal_cfg->legacy_mem && internal_cfg->match_allocations) {
2007                 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
2008                                 "with --"OPT_MATCH_ALLOCATIONS"\n");
2009                 return -1;
2010         }
2011         if (internal_cfg->no_hugetlbfs && internal_cfg->match_allocations) {
2012                 RTE_LOG(ERR, EAL, "Option --"OPT_NO_HUGE" is not compatible "
2013                                 "with --"OPT_MATCH_ALLOCATIONS"\n");
2014                 return -1;
2015         }
2016         if (internal_cfg->legacy_mem && internal_cfg->memory == 0) {
2017                 RTE_LOG(NOTICE, EAL, "Static memory layout is selected, "
2018                         "amount of reserved memory can be adjusted with "
2019                         "-m or --"OPT_SOCKET_MEM"\n");
2020         }
2021
2022         return 0;
2023 }
2024
2025 uint16_t
2026 rte_vect_get_max_simd_bitwidth(void)
2027 {
2028         const struct internal_config *internal_conf =
2029                 eal_get_internal_configuration();
2030         return internal_conf->max_simd_bitwidth.bitwidth;
2031 }
2032
2033 int
2034 rte_vect_set_max_simd_bitwidth(uint16_t bitwidth)
2035 {
2036         struct internal_config *internal_conf =
2037                 eal_get_internal_configuration();
2038         if (internal_conf->max_simd_bitwidth.forced) {
2039                 RTE_LOG(NOTICE, EAL, "Cannot set max SIMD bitwidth - user runtime override enabled");
2040                 return -EPERM;
2041         }
2042
2043         if (bitwidth < RTE_VECT_SIMD_DISABLED || !rte_is_power_of_2(bitwidth)) {
2044                 RTE_LOG(ERR, EAL, "Invalid bitwidth value!\n");
2045                 return -EINVAL;
2046         }
2047         internal_conf->max_simd_bitwidth.bitwidth = bitwidth;
2048         return 0;
2049 }
2050
2051 void
2052 eal_common_usage(void)
2053 {
2054         printf("[options]\n\n"
2055                "EAL common options:\n"
2056                "  -c COREMASK         Hexadecimal bitmask of cores to run on\n"
2057                "  -l CORELIST         List of cores to run on\n"
2058                "                      The argument format is <c1>[-c2][,c3[-c4],...]\n"
2059                "                      where c1, c2, etc are core indexes between 0 and %d\n"
2060                "  --"OPT_LCORES" COREMAP    Map lcore set to physical cpu set\n"
2061                "                      The argument format is\n"
2062                "                            '<lcores[@cpus]>[<,lcores[@cpus]>...]'\n"
2063                "                      lcores and cpus list are grouped by '(' and ')'\n"
2064                "                      Within the group, '-' is used for range separator,\n"
2065                "                      ',' is used for single number separator.\n"
2066                "                      '( )' can be omitted for single element group,\n"
2067                "                      '@' can be omitted if cpus and lcores have the same value\n"
2068                "  -s SERVICE COREMASK Hexadecimal bitmask of cores to be used as service cores\n"
2069                "  --"OPT_MAIN_LCORE" ID     Core ID that is used as main\n"
2070                "  --"OPT_MBUF_POOL_OPS_NAME" Pool ops name for mbuf to use\n"
2071                "  -n CHANNELS         Number of memory channels\n"
2072                "  -m MB               Memory to allocate (see also --"OPT_SOCKET_MEM")\n"
2073                "  -r RANKS            Force number of memory ranks (don't detect)\n"
2074                "  -b, --block         Add a device to the blocked list.\n"
2075                "                      Prevent EAL from using this device. The argument\n"
2076                "                      format for PCI devices is <domain:bus:devid.func>.\n"
2077                "  -a, --allow         Add a device to the allow list.\n"
2078                "                      Only use the specified devices. The argument format\n"
2079                "                      for PCI devices is <[domain:]bus:devid.func>.\n"
2080                "                      This option can be present several times.\n"
2081                "                      [NOTE: " OPT_DEV_ALLOW " cannot be used with "OPT_DEV_BLOCK" option]\n"
2082                "  --"OPT_VDEV"              Add a virtual device.\n"
2083                "                      The argument format is <driver><id>[,key=val,...]\n"
2084                "                      (ex: --vdev=net_pcap0,iface=eth2).\n"
2085                "  --"OPT_IOVA_MODE"   Set IOVA mode. 'pa' for IOVA_PA\n"
2086                "                      'va' for IOVA_VA\n"
2087                "  -d LIB.so|DIR       Add a driver or driver directory\n"
2088                "                      (can be used multiple times)\n"
2089                "  --"OPT_VMWARE_TSC_MAP"    Use VMware TSC map instead of native RDTSC\n"
2090                "  --"OPT_PROC_TYPE"         Type of this process (primary|secondary|auto)\n"
2091 #ifndef RTE_EXEC_ENV_WINDOWS
2092                "  --"OPT_SYSLOG"            Set syslog facility\n"
2093 #endif
2094                "  --"OPT_LOG_LEVEL"=<level> Set global log level\n"
2095                "  --"OPT_LOG_LEVEL"=<type-match>:<level>\n"
2096                "                      Set specific log level\n"
2097                "  --"OPT_LOG_LEVEL"=help    Show log types and levels\n"
2098 #ifndef RTE_EXEC_ENV_WINDOWS
2099                "  --"OPT_TRACE"=<regex-match>\n"
2100                "                      Enable trace based on regular expression trace name.\n"
2101                "                      By default, the trace is disabled.\n"
2102                "                      User must specify this option to enable trace.\n"
2103                "  --"OPT_TRACE_DIR"=<directory path>\n"
2104                "                      Specify trace directory for trace output.\n"
2105                "                      By default, trace output will created at\n"
2106                "                      $HOME directory and parameter must be\n"
2107                "                      specified once only.\n"
2108                "  --"OPT_TRACE_BUF_SIZE"=<int>\n"
2109                "                      Specify maximum size of allocated memory\n"
2110                "                      for trace output for each thread. Valid\n"
2111                "                      unit can be either 'B|K|M' for 'Bytes',\n"
2112                "                      'KBytes' and 'MBytes' respectively.\n"
2113                "                      Default is 1MB and parameter must be\n"
2114                "                      specified once only.\n"
2115                "  --"OPT_TRACE_MODE"=<o[verwrite] | d[iscard]>\n"
2116                "                      Specify the mode of update of trace\n"
2117                "                      output file. Either update on a file can\n"
2118                "                      be wrapped or discarded when file size\n"
2119                "                      reaches its maximum limit.\n"
2120                "                      Default mode is 'overwrite' and parameter\n"
2121                "                      must be specified once only.\n"
2122 #endif /* !RTE_EXEC_ENV_WINDOWS */
2123                "  -v                  Display version information on startup\n"
2124                "  -h, --help          This help\n"
2125                "  --"OPT_IN_MEMORY"   Operate entirely in memory. This will\n"
2126                "                      disable secondary process support\n"
2127                "  --"OPT_BASE_VIRTADDR"     Base virtual address\n"
2128                "  --"OPT_TELEMETRY"   Enable telemetry support (on by default)\n"
2129                "  --"OPT_NO_TELEMETRY"   Disable telemetry support\n"
2130                "  --"OPT_FORCE_MAX_SIMD_BITWIDTH" Force the max SIMD bitwidth\n"
2131                "\nEAL options for DEBUG use only:\n"
2132                "  --"OPT_HUGE_UNLINK"       Unlink hugepage files after init\n"
2133                "  --"OPT_NO_HUGE"           Use malloc instead of hugetlbfs\n"
2134                "  --"OPT_NO_PCI"            Disable PCI\n"
2135                "  --"OPT_NO_HPET"           Disable HPET\n"
2136                "  --"OPT_NO_SHCONF"         No shared config (mmap'd files)\n"
2137                "\n", RTE_MAX_LCORE);
2138 }