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