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 <string.h>
   8 #ifndef RTE_EXEC_ENV_WINDOWS
   9 #include <syslog.h>
  10 #endif
  11 #include <ctype.h>
  12 #include <limits.h>
  13 #include <errno.h>
  14 #include <getopt.h>
  15 #ifndef RTE_EXEC_ENV_WINDOWS
  16 #include <dlfcn.h>
  17 #include <libgen.h>
  18 #endif
  19 #include <sys/stat.h>
  20 #ifndef RTE_EXEC_ENV_WINDOWS
  21 #include <dirent.h>
  22 #endif
  23
  24 #include <rte_string_fns.h>
  25 #include <rte_eal.h>
  26 #include <rte_log.h>
  27 #include <rte_lcore.h>
  28 #include <rte_memory.h>
  29 #include <rte_tailq.h>
  30 #include <rte_version.h>
  31 #include <rte_devargs.h>
  32 #include <rte_memcpy.h>
  33 #ifndef RTE_EXEC_ENV_WINDOWS
  34 #include <rte_telemetry.h>
  35 #endif
  36 #include <rte_vect.h>
  37
  38 #include "eal_internal_cfg.h"
  39 #include "eal_options.h"
  40 #include "eal_filesystem.h"
  41 #include "eal_private.h"
  42 #include "eal_log.h"
  43 #ifndef RTE_EXEC_ENV_WINDOWS
  44 #include "eal_trace.h"
  45 #endif
  46
  47 #define BITS_PER_HEX 4
  48 #define LCORE_OPT_LST 1
  49 #define LCORE_OPT_MSK 2
  50 #define LCORE_OPT_MAP 3
  51
  52 const char
  53 eal_short_options[] =
  54         "a:" /* allow */
  55         "b:" /* block */
  56         "c:" /* coremask */
  57         "s:" /* service coremask */
  58         "d:" /* driver */
  59         "h"  /* help */
  60         "l:" /* corelist */
  61         "S:" /* service corelist */
  62         "m:" /* memory size */
  63         "n:" /* memory channels */
  64         "r:" /* memory ranks */
  65         "v"  /* version */
  66         ;
  67
  68 const struct option
  69 eal_long_options[] = {
  70         {OPT_BASE_VIRTADDR,     1, NULL, OPT_BASE_VIRTADDR_NUM    },
  71         {OPT_CREATE_UIO_DEV,    0, NULL, OPT_CREATE_UIO_DEV_NUM   },
  72         {OPT_FILE_PREFIX,       1, NULL, OPT_FILE_PREFIX_NUM      },
  73         {OPT_HELP,              0, NULL, OPT_HELP_NUM             },
  74         {OPT_HUGE_DIR,          1, NULL, OPT_HUGE_DIR_NUM         },
  75         {OPT_HUGE_UNLINK,       2, NULL, OPT_HUGE_UNLINK_NUM      },
  76         {OPT_IOVA_MODE,         1, NULL, OPT_IOVA_MODE_NUM        },
  77         {OPT_LCORES,            1, NULL, OPT_LCORES_NUM           },
  78         {OPT_LOG_LEVEL,         1, NULL, OPT_LOG_LEVEL_NUM        },
  79         {OPT_TRACE,             1, NULL, OPT_TRACE_NUM            },
  80         {OPT_TRACE_DIR,         1, NULL, OPT_TRACE_DIR_NUM        },
  81         {OPT_TRACE_BUF_SIZE,    1, NULL, OPT_TRACE_BUF_SIZE_NUM   },
  82         {OPT_TRACE_MODE,        1, NULL, OPT_TRACE_MODE_NUM       },
  83         {OPT_MAIN_LCORE,        1, NULL, OPT_MAIN_LCORE_NUM       },
  84         {OPT_MBUF_POOL_OPS_NAME, 1, NULL, OPT_MBUF_POOL_OPS_NAME_NUM},
  85         {OPT_NO_HPET,           0, NULL, OPT_NO_HPET_NUM          },
  86         {OPT_NO_HUGE,           0, NULL, OPT_NO_HUGE_NUM          },
  87         {OPT_NO_PCI,            0, NULL, OPT_NO_PCI_NUM           },
  88         {OPT_NO_SHCONF,         0, NULL, OPT_NO_SHCONF_NUM        },
  89         {OPT_IN_MEMORY,         0, NULL, OPT_IN_MEMORY_NUM        },
  90         {OPT_DEV_BLOCK,         1, NULL, OPT_DEV_BLOCK_NUM        },
  91         {OPT_DEV_ALLOW,         1, NULL, OPT_DEV_ALLOW_NUM        },
  92         {OPT_PROC_TYPE,         1, NULL, OPT_PROC_TYPE_NUM        },
  93         {OPT_SOCKET_MEM,        1, NULL, OPT_SOCKET_MEM_NUM       },
  94         {OPT_SOCKET_LIMIT,      1, NULL, OPT_SOCKET_LIMIT_NUM     },
  95         {OPT_SYSLOG,            1, NULL, OPT_SYSLOG_NUM           },
  96         {OPT_VDEV,              1, NULL, OPT_VDEV_NUM             },
  97         {OPT_VFIO_INTR,         1, NULL, OPT_VFIO_INTR_NUM        },
  98         {OPT_VFIO_VF_TOKEN,     1, NULL, OPT_VFIO_VF_TOKEN_NUM    },
  99         {OPT_VMWARE_TSC_MAP,    0, NULL, OPT_VMWARE_TSC_MAP_NUM   },
 100         {OPT_LEGACY_MEM,        0, NULL, OPT_LEGACY_MEM_NUM       },
 101         {OPT_SINGLE_FILE_SEGMENTS, 0, NULL, OPT_SINGLE_FILE_SEGMENTS_NUM},
 102         {OPT_MATCH_ALLOCATIONS, 0, NULL, OPT_MATCH_ALLOCATIONS_NUM},
 103         {OPT_TELEMETRY,         0, NULL, OPT_TELEMETRY_NUM        },
 104         {OPT_NO_TELEMETRY,      0, NULL, OPT_NO_TELEMETRY_NUM     },
 105         {OPT_FORCE_MAX_SIMD_BITWIDTH, 1, NULL, OPT_FORCE_MAX_SIMD_BITWIDTH_NUM},
 106
 107         {0,                     0, NULL, 0                        }
 108 };
 109
 110 TAILQ_HEAD(shared_driver_list, shared_driver);
 111
 112 /* Definition for shared object drivers. */
 113 struct shared_driver {
 114         TAILQ_ENTRY(shared_driver) next;
 115
 116         char    name[PATH_MAX];
 117         void*   lib_handle;
 118 };
 119
 120 /* List of external loadable drivers */
 121 static struct shared_driver_list solib_list =
 122 TAILQ_HEAD_INITIALIZER(solib_list);
 123
 124 #ifndef RTE_EXEC_ENV_WINDOWS
 125 /* Default path of external loadable drivers */
 126 static const char *default_solib_dir = RTE_EAL_PMD_PATH;
 127 #endif
 128
 129 /*
 130  * Stringified version of solib path used by dpdk-pmdinfo.py
 131  * Note: PLEASE DO NOT ALTER THIS without making a corresponding
 132  * change to usertools/dpdk-pmdinfo.py
 133  */
 134 static const char dpdk_solib_path[] __rte_used =
 135 "DPDK_PLUGIN_PATH=" RTE_EAL_PMD_PATH;
 136
 137 TAILQ_HEAD(device_option_list, device_option);
 138
 139 struct device_option {
 140         TAILQ_ENTRY(device_option) next;
 141
 142         enum rte_devtype type;
 143         char arg[];
 144 };
 145
 146 static struct device_option_list devopt_list =
 147 TAILQ_HEAD_INITIALIZER(devopt_list);
 148
 149 static int main_lcore_parsed;
 150 static int mem_parsed;
 151 static int core_parsed;
 152
 153 /* Allow the application to print its usage message too if set */
 154 static rte_usage_hook_t rte_application_usage_hook;
 155
 156 /* Returns rte_usage_hook_t */
 157 rte_usage_hook_t
 158 eal_get_application_usage_hook(void)
 159 {
 160         return rte_application_usage_hook;
 161 }
 162
 163 /* Set a per-application usage message */
 164 rte_usage_hook_t
 165 rte_set_application_usage_hook(rte_usage_hook_t usage_func)
 166 {
 167         rte_usage_hook_t old_func;
 168
 169         /* Will be NULL on the first call to denote the last usage routine. */
 170         old_func = rte_application_usage_hook;
 171         rte_application_usage_hook = usage_func;
 172
 173         return old_func;
 174 }
 175
 176 #ifndef RTE_EXEC_ENV_WINDOWS
 177 static char **eal_args;
 178 static char **eal_app_args;
 179
 180 #define EAL_PARAM_REQ "/eal/params"
 181 #define EAL_APP_PARAM_REQ "/eal/app_params"
 182
 183 /* callback handler for telemetry library to report out EAL flags */
 184 int
 185 handle_eal_info_request(const char *cmd, const char *params __rte_unused,
 186                 struct rte_tel_data *d)
 187 {
 188         char **args;
 189         int used = 0;
 190         int i = 0;
 191
 192         if (strcmp(cmd, EAL_PARAM_REQ) == 0)
 193                 args = eal_args;
 194         else
 195                 args = eal_app_args;
 196
 197         rte_tel_data_start_array(d, RTE_TEL_STRING_VAL);
 198         if (args == NULL || args[0] == NULL)
 199                 return 0;
 200
 201         for ( ; args[i] != NULL; i++)
 202                 used = rte_tel_data_add_array_string(d, args[i]);
 203         return used;
 204 }
 205
 206 int
 207 eal_save_args(int argc, char **argv)
 208 {
 209         int i, j;
 210
 211         rte_telemetry_register_cmd(EAL_PARAM_REQ, handle_eal_info_request,
 212                         "Returns EAL commandline parameters used. Takes no parameters");
 213         rte_telemetry_register_cmd(EAL_APP_PARAM_REQ, handle_eal_info_request,
 214                         "Returns app commandline parameters used. Takes no parameters");
 215
 216         /* clone argv to report out later. We overprovision, but
 217          * this does not waste huge amounts of memory
 218          */
 219         eal_args = calloc(argc + 1, sizeof(*eal_args));
 220         if (eal_args == NULL)
 221                 return -1;
 222
 223         for (i = 0; i < argc; i++) {
 224                 if (strcmp(argv[i], "--") == 0)
 225                         break;
 226                 eal_args[i] = strdup(argv[i]);
 227         }
 228         eal_args[i++] = NULL; /* always finish with NULL */
 229
 230         /* allow reporting of any app args we know about too */
 231         if (i >= argc)
 232                 return 0;
 233
 234         eal_app_args = calloc(argc - i + 1, sizeof(*eal_args));
 235         if (eal_app_args == NULL)
 236                 return -1;
 237
 238         for (j = 0; i < argc; j++, i++)
 239                 eal_app_args[j] = strdup(argv[i]);
 240         eal_app_args[j] = NULL;
 241
 242         return 0;
 243 }
 244 #endif
 245
 246 static int
 247 eal_option_device_add(enum rte_devtype type, const char *optarg)
 248 {
 249         struct device_option *devopt;
 250         size_t optlen;
 251         int ret;
 252
 253         optlen = strlen(optarg) + 1;
 254         devopt = calloc(1, sizeof(*devopt) + optlen);
 255         if (devopt == NULL) {
 256                 RTE_LOG(ERR, EAL, "Unable to allocate device option\n");
 257                 return -ENOMEM;
 258         }
 259
 260         devopt->type = type;
 261         ret = strlcpy(devopt->arg, optarg, optlen);
 262         if (ret < 0) {
 263                 RTE_LOG(ERR, EAL, "Unable to copy device option\n");
 264                 free(devopt);
 265                 return -EINVAL;
 266         }
 267         TAILQ_INSERT_TAIL(&devopt_list, devopt, next);
 268         return 0;
 269 }
 270
 271 int
 272 eal_option_device_parse(void)
 273 {
 274         struct device_option *devopt;
 275         void *tmp;
 276         int ret = 0;
 277
 278         RTE_TAILQ_FOREACH_SAFE(devopt, &devopt_list, next, tmp) {
 279                 if (ret == 0) {
 280                         ret = rte_devargs_add(devopt->type, devopt->arg);
 281                         if (ret)
 282                                 RTE_LOG(ERR, EAL, "Unable to parse device '%s'\n",
 283                                         devopt->arg);
 284                 }
 285                 TAILQ_REMOVE(&devopt_list, devopt, next);
 286                 free(devopt);
 287         }
 288         return ret;
 289 }
 290
 291 const char *
 292 eal_get_hugefile_prefix(void)
 293 {
 294         const struct internal_config *internal_conf =
 295                 eal_get_internal_configuration();
 296
 297         if (internal_conf->hugefile_prefix != NULL)
 298                 return internal_conf->hugefile_prefix;
 299         return HUGEFILE_PREFIX_DEFAULT;
 300 }
 301
 302 void
 303 eal_reset_internal_config(struct internal_config *internal_cfg)
 304 {
 305         int i;
 306
 307         internal_cfg->memory = 0;
 308         internal_cfg->force_nrank = 0;
 309         internal_cfg->force_nchannel = 0;
 310         internal_cfg->hugefile_prefix = NULL;
 311         internal_cfg->hugepage_dir = NULL;
 312         internal_cfg->hugepage_file.unlink_before_mapping = false;
 313         internal_cfg->hugepage_file.unlink_existing = true;
 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 check_core_list(int *lcores, unsigned int count)
 708 {
 709         char lcorestr[RTE_MAX_LCORE * 10];
 710         bool overflow = false;
 711         int len = 0, ret;
 712         unsigned int i;
 713
 714         for (i = 0; i < count; i++) {
 715                 if (lcores[i] < RTE_MAX_LCORE)
 716                         continue;
 717
 718                 RTE_LOG(ERR, EAL, "lcore %d >= RTE_MAX_LCORE (%d)\n",
 719                         lcores[i], RTE_MAX_LCORE);
 720                 overflow = true;
 721         }
 722         if (!overflow)
 723                 return 0;
 724
 725         /*
 726          * We've encountered a core that's greater than RTE_MAX_LCORE,
 727          * suggest using --lcores option to map lcores onto physical cores
 728          * greater than RTE_MAX_LCORE.
 729          */
 730         for (i = 0; i < count; i++) {
 731                 ret = snprintf(&lcorestr[len], sizeof(lcorestr) - len,
 732                         "%d@%d,", i, lcores[i]);
 733                 if (ret > 0)
 734                         len = len + ret;
 735         }
 736         if (len > 0)
 737                 lcorestr[len - 1] = 0;
 738         RTE_LOG(ERR, EAL, "To use high physical core ids, "
 739                 "please use --lcores to map them to lcore ids below RTE_MAX_LCORE, "
 740                 "e.g. --lcores %s\n", lcorestr);
 741         return -1;
 742 }
 743
 744 static int
 745 eal_parse_coremask(const char *coremask, int *cores)
 746 {
 747         const char *coremask_orig = coremask;
 748         int lcores[RTE_MAX_LCORE];
 749         unsigned int count = 0;
 750         int i, j, idx;
 751         int val;
 752         char c;
 753
 754         for (idx = 0; idx < RTE_MAX_LCORE; idx++)
 755                 cores[idx] = -1;
 756         idx = 0;
 757
 758         /* Remove all blank characters ahead and after .
 759          * Remove 0x/0X if exists.
 760          */
 761         while (isblank(*coremask))
 762                 coremask++;
 763         if (coremask[0] == '0' && ((coremask[1] == 'x')
 764                 || (coremask[1] == 'X')))
 765                 coremask += 2;
 766         i = strlen(coremask);
 767         while ((i > 0) && isblank(coremask[i - 1]))
 768                 i--;
 769         if (i == 0) {
 770                 RTE_LOG(ERR, EAL, "No lcores in coremask: [%s]\n",
 771                         coremask_orig);
 772                 return -1;
 773         }
 774
 775         for (i = i - 1; i >= 0; i--) {
 776                 c = coremask[i];
 777                 if (isxdigit(c) == 0) {
 778                         /* invalid characters */
 779                         RTE_LOG(ERR, EAL, "invalid characters in coremask: [%s]\n",
 780                                 coremask_orig);
 781                         return -1;
 782                 }
 783                 val = xdigit2val(c);
 784                 for (j = 0; j < BITS_PER_HEX; j++, idx++)
 785                 {
 786                         if ((1 << j) & val) {
 787                                 if (count >= RTE_MAX_LCORE) {
 788                                         RTE_LOG(ERR, EAL, "Too many lcores provided. Cannot exceed RTE_MAX_LCORE (%d)\n",
 789                                                 RTE_MAX_LCORE);
 790                                         return -1;
 791                                 }
 792                                 lcores[count++] = idx;
 793                         }
 794                 }
 795         }
 796         if (count == 0) {
 797                 RTE_LOG(ERR, EAL, "No lcores in coremask: [%s]\n",
 798                         coremask_orig);
 799                 return -1;
 800         }
 801
 802         if (check_core_list(lcores, count))
 803                 return -1;
 804
 805         /*
 806          * Now that we've got a list of cores no longer than RTE_MAX_LCORE,
 807          * and no lcore in that list is greater than RTE_MAX_LCORE, populate
 808          * the cores array.
 809          */
 810         do {
 811                 count--;
 812                 cores[lcores[count]] = count;
 813         } while (count != 0);
 814
 815         return 0;
 816 }
 817
 818 static int
 819 eal_parse_service_corelist(const char *corelist)
 820 {
 821         struct rte_config *cfg = rte_eal_get_configuration();
 822         int i;
 823         unsigned count = 0;
 824         char *end = NULL;
 825         uint32_t min, max, idx;
 826         uint32_t taken_lcore_count = 0;
 827
 828         if (corelist == NULL)
 829                 return -1;
 830
 831         /* Remove all blank characters ahead and after */
 832         while (isblank(*corelist))
 833                 corelist++;
 834         i = strlen(corelist);
 835         while ((i > 0) && isblank(corelist[i - 1]))
 836                 i--;
 837
 838         /* Get list of cores */
 839         min = RTE_MAX_LCORE;
 840         do {
 841                 while (isblank(*corelist))
 842                         corelist++;
 843                 if (*corelist == '\0')
 844                         return -1;
 845                 errno = 0;
 846                 idx = strtoul(corelist, &end, 10);
 847                 if (errno || end == NULL)
 848                         return -1;
 849                 if (idx >= RTE_MAX_LCORE)
 850                         return -1;
 851                 while (isblank(*end))
 852                         end++;
 853                 if (*end == '-') {
 854                         min = idx;
 855                 } else if ((*end == ',') || (*end == '\0')) {
 856                         max = idx;
 857                         if (min == RTE_MAX_LCORE)
 858                                 min = idx;
 859                         for (idx = min; idx <= max; idx++) {
 860                                 if (cfg->lcore_role[idx] != ROLE_SERVICE) {
 861                                         /* handle main lcore already parsed */
 862                                         uint32_t lcore = idx;
 863                                         if (cfg->main_lcore == lcore &&
 864                                                         main_lcore_parsed) {
 865                                                 RTE_LOG(ERR, EAL,
 866                                                         "Error: lcore %u is main lcore, cannot use as service core\n",
 867                                                         idx);
 868                                                 return -1;
 869                                         }
 870                                         if (cfg->lcore_role[idx] == ROLE_RTE)
 871                                                 taken_lcore_count++;
 872
 873                                         lcore_config[idx].core_role =
 874                                                         ROLE_SERVICE;
 875                                         count++;
 876                                 }
 877                         }
 878                         min = RTE_MAX_LCORE;
 879                 } else
 880                         return -1;
 881                 corelist = end + 1;
 882         } while (*end != '\0');
 883
 884         if (count == 0)
 885                 return -1;
 886
 887         if (core_parsed && taken_lcore_count != count) {
 888                 RTE_LOG(WARNING, EAL,
 889                         "Not all service cores were in the coremask. "
 890                         "Please ensure -c or -l includes service cores\n");
 891         }
 892
 893         return 0;
 894 }
 895
 896 static int
 897 eal_parse_corelist(const char *corelist, int *cores)
 898 {
 899         unsigned int count = 0, i;
 900         int lcores[RTE_MAX_LCORE];
 901         char *end = NULL;
 902         int min, max;
 903         int idx;
 904
 905         for (idx = 0; idx < RTE_MAX_LCORE; idx++)
 906                 cores[idx] = -1;
 907
 908         /* Remove all blank characters ahead */
 909         while (isblank(*corelist))
 910                 corelist++;
 911
 912         /* Get list of cores */
 913         min = -1;
 914         do {
 915                 while (isblank(*corelist))
 916                         corelist++;
 917                 if (*corelist == '\0')
 918                         return -1;
 919                 errno = 0;
 920                 idx = strtol(corelist, &end, 10);
 921                 if (errno || end == NULL)
 922                         return -1;
 923                 if (idx < 0)
 924                         return -1;
 925                 while (isblank(*end))
 926                         end++;
 927                 if (*end == '-') {
 928                         min = idx;
 929                 } else if ((*end == ',') || (*end == '\0')) {
 930                         max = idx;
 931                         if (min == -1)
 932                                 min = idx;
 933                         for (idx = min; idx <= max; idx++) {
 934                                 bool dup = false;
 935
 936                                 /* Check if this idx is already present */
 937                                 for (i = 0; i < count; i++) {
 938                                         if (lcores[i] == idx)
 939                                                 dup = true;
 940                                 }
 941                                 if (dup)
 942                                         continue;
 943                                 if (count >= RTE_MAX_LCORE) {
 944                                         RTE_LOG(ERR, EAL, "Too many lcores provided. Cannot exceed RTE_MAX_LCORE (%d)\n",
 945                                                 RTE_MAX_LCORE);
 946                                         return -1;
 947                                 }
 948                                 lcores[count++] = idx;
 949                         }
 950                         min = -1;
 951                 } else
 952                         return -1;
 953                 corelist = end + 1;
 954         } while (*end != '\0');
 955
 956         if (count == 0)
 957                 return -1;
 958
 959         if (check_core_list(lcores, count))
 960                 return -1;
 961
 962         /*
 963          * Now that we've got a list of cores no longer than RTE_MAX_LCORE,
 964          * and no lcore in that list is greater than RTE_MAX_LCORE, populate
 965          * the cores array.
 966          */
 967         do {
 968                 count--;
 969                 cores[lcores[count]] = count;
 970         } while (count != 0);
 971
 972         return 0;
 973 }
 974
 975 /* Changes the lcore id of the main thread */
 976 static int
 977 eal_parse_main_lcore(const char *arg)
 978 {
 979         char *parsing_end;
 980         struct rte_config *cfg = rte_eal_get_configuration();
 981
 982         errno = 0;
 983         cfg->main_lcore = (uint32_t) strtol(arg, &parsing_end, 0);
 984         if (errno || parsing_end[0] != 0)
 985                 return -1;
 986         if (cfg->main_lcore >= RTE_MAX_LCORE)
 987                 return -1;
 988         main_lcore_parsed = 1;
 989
 990         /* ensure main core is not used as service core */
 991         if (lcore_config[cfg->main_lcore].core_role == ROLE_SERVICE) {
 992                 RTE_LOG(ERR, EAL,
 993                         "Error: Main lcore is used as a service core\n");
 994                 return -1;
 995         }
 996
 997         return 0;
 998 }
 999
1000 /*
1001  * Parse elem, the elem could be single number/range or '(' ')' group
1002  * 1) A single number elem, it's just a simple digit. e.g. 9
1003  * 2) A single range elem, two digits with a '-' between. e.g. 2-6
1004  * 3) A group elem, combines multiple 1) or 2) with '( )'. e.g (0,2-4,6)
1005  *    Within group elem, '-' used for a range separator;
1006  *                       ',' used for a single number.
1007  */
1008 static int
1009 eal_parse_set(const char *input, rte_cpuset_t *set)
1010 {
1011         unsigned idx;
1012         const char *str = input;
1013         char *end = NULL;
1014         unsigned min, max;
1015
1016         CPU_ZERO(set);
1017
1018         while (isblank(*str))
1019                 str++;
1020
1021         /* only digit or left bracket is qualify for start point */
1022         if ((!isdigit(*str) && *str != '(') || *str == '\0')
1023                 return -1;
1024
1025         /* process single number or single range of number */
1026         if (*str != '(') {
1027                 errno = 0;
1028                 idx = strtoul(str, &end, 10);
1029                 if (errno || end == NULL || idx >= CPU_SETSIZE)
1030                         return -1;
1031                 else {
1032                         while (isblank(*end))
1033                                 end++;
1034
1035                         min = idx;
1036                         max = idx;
1037                         if (*end == '-') {
1038                                 /* process single <number>-<number> */
1039                                 end++;
1040                                 while (isblank(*end))
1041                                         end++;
1042                                 if (!isdigit(*end))
1043                                         return -1;
1044
1045                                 errno = 0;
1046                                 idx = strtoul(end, &end, 10);
1047                                 if (errno || end == NULL || idx >= CPU_SETSIZE)
1048                                         return -1;
1049                                 max = idx;
1050                                 while (isblank(*end))
1051                                         end++;
1052                                 if (*end != ',' && *end != '\0')
1053                                         return -1;
1054                         }
1055
1056                         if (*end != ',' && *end != '\0' &&
1057                             *end != '@')
1058                                 return -1;
1059
1060                         for (idx = RTE_MIN(min, max);
1061                              idx <= RTE_MAX(min, max); idx++)
1062                                 CPU_SET(idx, set);
1063
1064                         return end - input;
1065                 }
1066         }
1067
1068         /* process set within bracket */
1069         str++;
1070         while (isblank(*str))
1071                 str++;
1072         if (*str == '\0')
1073                 return -1;
1074
1075         min = RTE_MAX_LCORE;
1076         do {
1077
1078                 /* go ahead to the first digit */
1079                 while (isblank(*str))
1080                         str++;
1081                 if (!isdigit(*str))
1082                         return -1;
1083
1084                 /* get the digit value */
1085                 errno = 0;
1086                 idx = strtoul(str, &end, 10);
1087                 if (errno || end == NULL || idx >= CPU_SETSIZE)
1088                         return -1;
1089
1090                 /* go ahead to separator '-',',' and ')' */
1091                 while (isblank(*end))
1092                         end++;
1093                 if (*end == '-') {
1094                         if (min == RTE_MAX_LCORE)
1095                                 min = idx;
1096                         else /* avoid continuous '-' */
1097                                 return -1;
1098                 } else if ((*end == ',') || (*end == ')')) {
1099                         max = idx;
1100                         if (min == RTE_MAX_LCORE)
1101                                 min = idx;
1102                         for (idx = RTE_MIN(min, max);
1103                              idx <= RTE_MAX(min, max); idx++)
1104                                 CPU_SET(idx, set);
1105
1106                         min = RTE_MAX_LCORE;
1107                 } else
1108                         return -1;
1109
1110                 str = end + 1;
1111         } while (*end != '\0' && *end != ')');
1112
1113         /*
1114          * to avoid failure that tail blank makes end character check fail
1115          * in eal_parse_lcores( )
1116          */
1117         while (isblank(*str))
1118                 str++;
1119
1120         return str - input;
1121 }
1122
1123 static int
1124 check_cpuset(rte_cpuset_t *set)
1125 {
1126         unsigned int idx;
1127
1128         for (idx = 0; idx < CPU_SETSIZE; idx++) {
1129                 if (!CPU_ISSET(idx, set))
1130                         continue;
1131
1132                 if (eal_cpu_detected(idx) == 0) {
1133                         RTE_LOG(ERR, EAL, "core %u "
1134                                 "unavailable\n", idx);
1135                         return -1;
1136                 }
1137         }
1138         return 0;
1139 }
1140
1141 /*
1142  * The format pattern: --lcores='<lcores[@cpus]>[<,lcores[@cpus]>...]'
1143  * lcores, cpus could be a single digit/range or a group.
1144  * '(' and ')' are necessary if it's a group.
1145  * If not supply '@cpus', the value of cpus uses the same as lcores.
1146  * e.g. '1,2@(5-7),(3-5)@(0,2),(0,6),7-8' means start 9 EAL thread as below
1147  *   lcore 0 runs on cpuset 0x41 (cpu 0,6)
1148  *   lcore 1 runs on cpuset 0x2 (cpu 1)
1149  *   lcore 2 runs on cpuset 0xe0 (cpu 5,6,7)
1150  *   lcore 3,4,5 runs on cpuset 0x5 (cpu 0,2)
1151  *   lcore 6 runs on cpuset 0x41 (cpu 0,6)
1152  *   lcore 7 runs on cpuset 0x80 (cpu 7)
1153  *   lcore 8 runs on cpuset 0x100 (cpu 8)
1154  */
1155 static int
1156 eal_parse_lcores(const char *lcores)
1157 {
1158         struct rte_config *cfg = rte_eal_get_configuration();
1159         rte_cpuset_t lcore_set;
1160         unsigned int set_count;
1161         unsigned idx = 0;
1162         unsigned count = 0;
1163         const char *lcore_start = NULL;
1164         const char *end = NULL;
1165         int offset;
1166         rte_cpuset_t cpuset;
1167         int lflags;
1168         int ret = -1;
1169
1170         if (lcores == NULL)
1171                 return -1;
1172
1173         /* Remove all blank characters ahead and after */
1174         while (isblank(*lcores))
1175                 lcores++;
1176
1177         CPU_ZERO(&cpuset);
1178
1179         /* Reset lcore config */
1180         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
1181                 cfg->lcore_role[idx] = ROLE_OFF;
1182                 lcore_config[idx].core_index = -1;
1183                 CPU_ZERO(&lcore_config[idx].cpuset);
1184         }
1185
1186         /* Get list of cores */
1187         do {
1188                 while (isblank(*lcores))
1189                         lcores++;
1190                 if (*lcores == '\0')
1191                         goto err;
1192
1193                 lflags = 0;
1194
1195                 /* record lcore_set start point */
1196                 lcore_start = lcores;
1197
1198                 /* go across a complete bracket */
1199                 if (*lcore_start == '(') {
1200                         lcores += strcspn(lcores, ")");
1201                         if (*lcores++ == '\0')
1202                                 goto err;
1203                 }
1204
1205                 /* scan the separator '@', ','(next) or '\0'(finish) */
1206                 lcores += strcspn(lcores, "@,");
1207
1208                 if (*lcores == '@') {
1209                         /* explicit assign cpuset and update the end cursor */
1210                         offset = eal_parse_set(lcores + 1, &cpuset);
1211                         if (offset < 0)
1212                                 goto err;
1213                         end = lcores + 1 + offset;
1214                 } else { /* ',' or '\0' */
1215                         /* haven't given cpuset, current loop done */
1216                         end = lcores;
1217
1218                         /* go back to check <number>-<number> */
1219                         offset = strcspn(lcore_start, "(-");
1220                         if (offset < (end - lcore_start) &&
1221                             *(lcore_start + offset) != '(')
1222                                 lflags = 1;
1223                 }
1224
1225                 if (*end != ',' && *end != '\0')
1226                         goto err;
1227
1228                 /* parse lcore_set from start point */
1229                 if (eal_parse_set(lcore_start, &lcore_set) < 0)
1230                         goto err;
1231
1232                 /* without '@', by default using lcore_set as cpuset */
1233                 if (*lcores != '@')
1234                         rte_memcpy(&cpuset, &lcore_set, sizeof(cpuset));
1235
1236                 set_count = CPU_COUNT(&lcore_set);
1237                 /* start to update lcore_set */
1238                 for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
1239                         if (!CPU_ISSET(idx, &lcore_set))
1240                                 continue;
1241                         set_count--;
1242
1243                         if (cfg->lcore_role[idx] != ROLE_RTE) {
1244                                 lcore_config[idx].core_index = count;
1245                                 cfg->lcore_role[idx] = ROLE_RTE;
1246                                 count++;
1247                         }
1248
1249                         if (lflags) {
1250                                 CPU_ZERO(&cpuset);
1251                                 CPU_SET(idx, &cpuset);
1252                         }
1253
1254                         if (check_cpuset(&cpuset) < 0)
1255                                 goto err;
1256                         rte_memcpy(&lcore_config[idx].cpuset, &cpuset,
1257                                    sizeof(rte_cpuset_t));
1258                 }
1259
1260                 /* some cores from the lcore_set can't be handled by EAL */
1261                 if (set_count != 0)
1262                         goto err;
1263
1264                 lcores = end + 1;
1265         } while (*end != '\0');
1266
1267         if (count == 0)
1268                 goto err;
1269
1270         cfg->lcore_count = count;
1271         ret = 0;
1272
1273 err:
1274
1275         return ret;
1276 }
1277
1278 #ifndef RTE_EXEC_ENV_WINDOWS
1279 static int
1280 eal_parse_syslog(const char *facility, struct internal_config *conf)
1281 {
1282         int i;
1283         static const struct {
1284                 const char *name;
1285                 int value;
1286         } map[] = {
1287                 { "auth", LOG_AUTH },
1288                 { "cron", LOG_CRON },
1289                 { "daemon", LOG_DAEMON },
1290                 { "ftp", LOG_FTP },
1291                 { "kern", LOG_KERN },
1292                 { "lpr", LOG_LPR },
1293                 { "mail", LOG_MAIL },
1294                 { "news", LOG_NEWS },
1295                 { "syslog", LOG_SYSLOG },
1296                 { "user", LOG_USER },
1297                 { "uucp", LOG_UUCP },
1298                 { "local0", LOG_LOCAL0 },
1299                 { "local1", LOG_LOCAL1 },
1300                 { "local2", LOG_LOCAL2 },
1301                 { "local3", LOG_LOCAL3 },
1302                 { "local4", LOG_LOCAL4 },
1303                 { "local5", LOG_LOCAL5 },
1304                 { "local6", LOG_LOCAL6 },
1305                 { "local7", LOG_LOCAL7 },
1306                 { NULL, 0 }
1307         };
1308
1309         for (i = 0; map[i].name; i++) {
1310                 if (!strcmp(facility, map[i].name)) {
1311                         conf->syslog_facility = map[i].value;
1312                         return 0;
1313                 }
1314         }
1315         return -1;
1316 }
1317 #endif
1318
1319 static void
1320 eal_log_usage(void)
1321 {
1322         unsigned int level;
1323
1324         printf("Log type is a pattern matching items of this list"
1325                         " (plugins may be missing):\n");
1326         rte_log_list_types(stdout, "\t");
1327         printf("\n");
1328         printf("Syntax using globbing pattern:     ");
1329         printf("--"OPT_LOG_LEVEL" pattern:level\n");
1330         printf("Syntax using regular expression:   ");
1331         printf("--"OPT_LOG_LEVEL" regexp,level\n");
1332         printf("Syntax for the global level:       ");
1333         printf("--"OPT_LOG_LEVEL" level\n");
1334         printf("Logs are emitted if allowed by both global and specific levels.\n");
1335         printf("\n");
1336         printf("Log level can be a number or the first letters of its name:\n");
1337         for (level = 1; level <= RTE_LOG_MAX; level++)
1338                 printf("\t%d   %s\n", level, eal_log_level2str(level));
1339 }
1340
1341 static int
1342 eal_parse_log_priority(const char *level)
1343 {
1344         size_t len = strlen(level);
1345         unsigned long tmp;
1346         char *end;
1347         unsigned int i;
1348
1349         if (len == 0)
1350                 return -1;
1351
1352         /* look for named values, skip 0 which is not a valid level */
1353         for (i = 1; i <= RTE_LOG_MAX; i++) {
1354                 if (strncmp(eal_log_level2str(i), level, len) == 0)
1355                         return i;
1356         }
1357
1358         /* not a string, maybe it is numeric */
1359         errno = 0;
1360         tmp = strtoul(level, &end, 0);
1361
1362         /* check for errors */
1363         if (errno != 0 || end == NULL || *end != '\0' ||
1364             tmp >= UINT32_MAX)
1365                 return -1;
1366
1367         return tmp;
1368 }
1369
1370 static int
1371 eal_parse_log_level(const char *arg)
1372 {
1373         const char *pattern = NULL;
1374         const char *regex = NULL;
1375         char *str, *level;
1376         int priority;
1377
1378         if (strcmp(arg, "help") == 0) {
1379                 eal_log_usage();
1380                 exit(EXIT_SUCCESS);
1381         }
1382
1383         str = strdup(arg);
1384         if (str == NULL)
1385                 return -1;
1386
1387         if ((level = strchr(str, ','))) {
1388                 regex = str;
1389                 *level++ = '\0';
1390         } else if ((level = strchr(str, ':'))) {
1391                 pattern = str;
1392                 *level++ = '\0';
1393         } else {
1394                 level = str;
1395         }
1396
1397         priority = eal_parse_log_priority(level);
1398         if (priority <= 0) {
1399                 fprintf(stderr, "Invalid log level: %s\n", level);
1400                 goto fail;
1401         }
1402         if (priority > (int)RTE_LOG_MAX) {
1403                 fprintf(stderr, "Log level %d higher than maximum (%d)\n",
1404                                 priority, RTE_LOG_MAX);
1405                 priority = RTE_LOG_MAX;
1406         }
1407
1408         if (regex) {
1409                 if (rte_log_set_level_regexp(regex, priority) < 0) {
1410                         fprintf(stderr, "cannot set log level %s,%d\n",
1411                                 regex, priority);
1412                         goto fail;
1413                 }
1414                 if (eal_log_save_regexp(regex, priority) < 0)
1415                         goto fail;
1416         } else if (pattern) {
1417                 if (rte_log_set_level_pattern(pattern, priority) < 0) {
1418                         fprintf(stderr, "cannot set log level %s:%d\n",
1419                                 pattern, priority);
1420                         goto fail;
1421                 }
1422                 if (eal_log_save_pattern(pattern, priority) < 0)
1423                         goto fail;
1424         } else {
1425                 rte_log_set_global_level(priority);
1426         }
1427
1428         free(str);
1429         return 0;
1430
1431 fail:
1432         free(str);
1433         return -1;
1434 }
1435
1436 static enum rte_proc_type_t
1437 eal_parse_proc_type(const char *arg)
1438 {
1439         if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
1440                 return RTE_PROC_PRIMARY;
1441         if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
1442                 return RTE_PROC_SECONDARY;
1443         if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
1444                 return RTE_PROC_AUTO;
1445
1446         return RTE_PROC_INVALID;
1447 }
1448
1449 static int
1450 eal_parse_iova_mode(const char *name)
1451 {
1452         int mode;
1453         struct internal_config *internal_conf =
1454                 eal_get_internal_configuration();
1455
1456         if (name == NULL)
1457                 return -1;
1458
1459         if (!strcmp("pa", name))
1460                 mode = RTE_IOVA_PA;
1461         else if (!strcmp("va", name))
1462                 mode = RTE_IOVA_VA;
1463         else
1464                 return -1;
1465
1466         internal_conf->iova_mode = mode;
1467         return 0;
1468 }
1469
1470 static int
1471 eal_parse_simd_bitwidth(const char *arg)
1472 {
1473         char *end;
1474         unsigned long bitwidth;
1475         int ret;
1476         struct internal_config *internal_conf =
1477                 eal_get_internal_configuration();
1478
1479         if (arg == NULL || arg[0] == '\0')
1480                 return -1;
1481
1482         errno = 0;
1483         bitwidth = strtoul(arg, &end, 0);
1484
1485         /* check for errors */
1486         if (errno != 0 || end == NULL || *end != '\0' || bitwidth > RTE_VECT_SIMD_MAX)
1487                 return -1;
1488
1489         if (bitwidth == 0)
1490                 bitwidth = (unsigned long) RTE_VECT_SIMD_MAX;
1491         ret = rte_vect_set_max_simd_bitwidth(bitwidth);
1492         if (ret < 0)
1493                 return -1;
1494         internal_conf->max_simd_bitwidth.forced = 1;
1495         return 0;
1496 }
1497
1498 static int
1499 eal_parse_base_virtaddr(const char *arg)
1500 {
1501         char *end;
1502         uint64_t addr;
1503         struct internal_config *internal_conf =
1504                 eal_get_internal_configuration();
1505
1506         errno = 0;
1507         addr = strtoull(arg, &end, 16);
1508
1509         /* check for errors */
1510         if ((errno != 0) || (arg[0] == '\0') || end == NULL || (*end != '\0'))
1511                 return -1;
1512
1513         /* make sure we don't exceed 32-bit boundary on 32-bit target */
1514 #ifndef RTE_ARCH_64
1515         if (addr >= UINTPTR_MAX)
1516                 return -1;
1517 #endif
1518
1519         /* align the addr on 16M boundary, 16MB is the minimum huge page
1520          * size on IBM Power architecture. If the addr is aligned to 16MB,
1521          * it can align to 2MB for x86. So this alignment can also be used
1522          * on x86 and other architectures.
1523          */
1524         internal_conf->base_virtaddr =
1525                 RTE_PTR_ALIGN_CEIL((uintptr_t)addr, (size_t)RTE_PGSIZE_16M);
1526
1527         return 0;
1528 }
1529
1530 /* caller is responsible for freeing the returned string */
1531 static char *
1532 available_cores(void)
1533 {
1534         char *str = NULL;
1535         int previous;
1536         int sequence;
1537         char *tmp;
1538         int idx;
1539
1540         /* find the first available cpu */
1541         for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
1542                 if (eal_cpu_detected(idx) == 0)
1543                         continue;
1544                 break;
1545         }
1546         if (idx >= RTE_MAX_LCORE)
1547                 return NULL;
1548
1549         /* first sequence */
1550         if (asprintf(&str, "%d", idx) < 0)
1551                 return NULL;
1552         previous = idx;
1553         sequence = 0;
1554
1555         for (idx++ ; idx < RTE_MAX_LCORE; idx++) {
1556                 if (eal_cpu_detected(idx) == 0)
1557                         continue;
1558
1559                 if (idx == previous + 1) {
1560                         previous = idx;
1561                         sequence = 1;
1562                         continue;
1563                 }
1564
1565                 /* finish current sequence */
1566                 if (sequence) {
1567                         if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
1568                                 free(str);
1569                                 return NULL;
1570                         }
1571                         free(str);
1572                         str = tmp;
1573                 }
1574
1575                 /* new sequence */
1576                 if (asprintf(&tmp, "%s,%d", str, idx) < 0) {
1577                         free(str);
1578                         return NULL;
1579                 }
1580                 free(str);
1581                 str = tmp;
1582                 previous = idx;
1583                 sequence = 0;
1584         }
1585
1586         /* finish last sequence */
1587         if (sequence) {
1588                 if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
1589                         free(str);
1590                         return NULL;
1591                 }
1592                 free(str);
1593                 str = tmp;
1594         }
1595
1596         return str;
1597 }
1598
1599 #define HUGE_UNLINK_NEVER "never"
1600
1601 static int
1602 eal_parse_huge_unlink(const char *arg, struct hugepage_file_discipline *out)
1603 {
1604         if (arg == NULL || strcmp(arg, "always") == 0) {
1605                 out->unlink_before_mapping = true;
1606                 return 0;
1607         }
1608         if (strcmp(arg, "existing") == 0) {
1609                 /* same as not specifying the option */
1610                 return 0;
1611         }
1612         if (strcmp(arg, HUGE_UNLINK_NEVER) == 0) {
1613                 RTE_LOG(WARNING, EAL, "Using --"OPT_HUGE_UNLINK"="
1614                         HUGE_UNLINK_NEVER" may create data leaks.\n");
1615                 out->unlink_existing = false;
1616                 return 0;
1617         }
1618         return -1;
1619 }
1620
1621 int
1622 eal_parse_common_option(int opt, const char *optarg,
1623                         struct internal_config *conf)
1624 {
1625         static int b_used;
1626         static int a_used;
1627
1628         switch (opt) {
1629         case 'b':
1630                 if (a_used)
1631                         goto ba_conflict;
1632                 if (eal_option_device_add(RTE_DEVTYPE_BLOCKED, optarg) < 0)
1633                         return -1;
1634                 b_used = 1;
1635                 break;
1636
1637         case 'a':
1638                 if (b_used)
1639                         goto ba_conflict;
1640                 if (eal_option_device_add(RTE_DEVTYPE_ALLOWED, optarg) < 0)
1641                         return -1;
1642                 a_used = 1;
1643                 break;
1644         /* coremask */
1645         case 'c': {
1646                 int lcore_indexes[RTE_MAX_LCORE];
1647
1648                 if (eal_service_cores_parsed())
1649                         RTE_LOG(WARNING, EAL,
1650                                 "Service cores parsed before dataplane cores. Please ensure -c is before -s or -S\n");
1651                 if (eal_parse_coremask(optarg, lcore_indexes) < 0) {
1652                         RTE_LOG(ERR, EAL, "invalid coremask syntax\n");
1653                         return -1;
1654                 }
1655                 if (update_lcore_config(lcore_indexes) < 0) {
1656                         char *available = available_cores();
1657
1658                         RTE_LOG(ERR, EAL,
1659                                 "invalid coremask, please check specified cores are part of %s\n",
1660                                 available);
1661                         free(available);
1662                         return -1;
1663                 }
1664
1665                 if (core_parsed) {
1666                         RTE_LOG(ERR, EAL, "Option -c is ignored, because (%s) is set!\n",
1667                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1668                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1669                                 "-c");
1670                         return -1;
1671                 }
1672
1673                 core_parsed = LCORE_OPT_MSK;
1674                 break;
1675         }
1676         /* corelist */
1677         case 'l': {
1678                 int lcore_indexes[RTE_MAX_LCORE];
1679
1680                 if (eal_service_cores_parsed())
1681                         RTE_LOG(WARNING, EAL,
1682                                 "Service cores parsed before dataplane cores. Please ensure -l is before -s or -S\n");
1683
1684                 if (eal_parse_corelist(optarg, lcore_indexes) < 0) {
1685                         RTE_LOG(ERR, EAL, "invalid core list syntax\n");
1686                         return -1;
1687                 }
1688                 if (update_lcore_config(lcore_indexes) < 0) {
1689                         char *available = available_cores();
1690
1691                         RTE_LOG(ERR, EAL,
1692                                 "invalid core list, please check specified cores are part of %s\n",
1693                                 available);
1694                         free(available);
1695                         return -1;
1696                 }
1697
1698                 if (core_parsed) {
1699                         RTE_LOG(ERR, EAL, "Option -l is ignored, because (%s) is set!\n",
1700                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1701                                 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1702                                 "-l");
1703                         return -1;
1704                 }
1705
1706                 core_parsed = LCORE_OPT_LST;
1707                 break;
1708         }
1709         /* service coremask */
1710         case 's':
1711                 if (eal_parse_service_coremask(optarg) < 0) {
1712                         RTE_LOG(ERR, EAL, "invalid service coremask\n");
1713                         return -1;
1714                 }
1715                 break;
1716         /* service corelist */
1717         case 'S':
1718                 if (eal_parse_service_corelist(optarg) < 0) {
1719                         RTE_LOG(ERR, EAL, "invalid service core list\n");
1720                         return -1;
1721                 }
1722                 break;
1723         /* size of memory */
1724         case 'm':
1725                 conf->memory = atoi(optarg);
1726                 conf->memory *= 1024ULL;
1727                 conf->memory *= 1024ULL;
1728                 mem_parsed = 1;
1729                 break;
1730         /* force number of channels */
1731         case 'n':
1732                 conf->force_nchannel = atoi(optarg);
1733                 if (conf->force_nchannel == 0) {
1734                         RTE_LOG(ERR, EAL, "invalid channel number\n");
1735                         return -1;
1736                 }
1737                 break;
1738         /* force number of ranks */
1739         case 'r':
1740                 conf->force_nrank = atoi(optarg);
1741                 if (conf->force_nrank == 0 ||
1742                     conf->force_nrank > 16) {
1743                         RTE_LOG(ERR, EAL, "invalid rank number\n");
1744                         return -1;
1745                 }
1746                 break;
1747         /* force loading of external driver */
1748         case 'd':
1749                 if (eal_plugin_add(optarg) == -1)
1750                         return -1;
1751                 break;
1752         case 'v':
1753                 /* since message is explicitly requested by user, we
1754                  * write message at highest log level so it can always
1755                  * be seen
1756                  * even if info or warning messages are disabled */
1757                 RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
1758                 break;
1759
1760         /* long options */
1761         case OPT_HUGE_UNLINK_NUM:
1762                 if (eal_parse_huge_unlink(optarg, &conf->hugepage_file) < 0) {
1763                         RTE_LOG(ERR, EAL, "invalid --"OPT_HUGE_UNLINK" option\n");
1764                         return -1;
1765                 }
1766                 break;
1767
1768         case OPT_NO_HUGE_NUM:
1769                 conf->no_hugetlbfs = 1;
1770                 /* no-huge is legacy mem */
1771                 conf->legacy_mem = 1;
1772                 break;
1773
1774         case OPT_NO_PCI_NUM:
1775                 conf->no_pci = 1;
1776                 break;
1777
1778         case OPT_NO_HPET_NUM:
1779                 conf->no_hpet = 1;
1780                 break;
1781
1782         case OPT_VMWARE_TSC_MAP_NUM:
1783                 conf->vmware_tsc_map = 1;
1784                 break;
1785
1786         case OPT_NO_SHCONF_NUM:
1787                 conf->no_shconf = 1;
1788                 break;
1789
1790         case OPT_IN_MEMORY_NUM:
1791                 conf->in_memory = 1;
1792                 /* in-memory is a superset of noshconf and huge-unlink */
1793                 conf->no_shconf = 1;
1794                 conf->hugepage_file.unlink_before_mapping = true;
1795                 break;
1796
1797         case OPT_PROC_TYPE_NUM:
1798                 conf->process_type = eal_parse_proc_type(optarg);
1799                 break;
1800
1801         case OPT_MAIN_LCORE_NUM:
1802                 if (eal_parse_main_lcore(optarg) < 0) {
1803                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1804                                         OPT_MAIN_LCORE "\n");
1805                         return -1;
1806                 }
1807                 break;
1808
1809         case OPT_VDEV_NUM:
1810                 if (eal_option_device_add(RTE_DEVTYPE_VIRTUAL,
1811                                 optarg) < 0) {
1812                         return -1;
1813                 }
1814                 break;
1815
1816 #ifndef RTE_EXEC_ENV_WINDOWS
1817         case OPT_SYSLOG_NUM:
1818                 if (eal_parse_syslog(optarg, conf) < 0) {
1819                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1820                                         OPT_SYSLOG "\n");
1821                         return -1;
1822                 }
1823                 break;
1824 #endif
1825
1826         case OPT_LOG_LEVEL_NUM: {
1827                 if (eal_parse_log_level(optarg) < 0) {
1828                         RTE_LOG(ERR, EAL,
1829                                 "invalid parameters for --"
1830                                 OPT_LOG_LEVEL "\n");
1831                         return -1;
1832                 }
1833                 break;
1834         }
1835
1836 #ifndef RTE_EXEC_ENV_WINDOWS
1837         case OPT_TRACE_NUM: {
1838                 if (eal_trace_args_save(optarg) < 0) {
1839                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1840                                 OPT_TRACE "\n");
1841                         return -1;
1842                 }
1843                 break;
1844         }
1845
1846         case OPT_TRACE_DIR_NUM: {
1847                 if (eal_trace_dir_args_save(optarg) < 0) {
1848                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1849                                 OPT_TRACE_DIR "\n");
1850                         return -1;
1851                 }
1852                 break;
1853         }
1854
1855         case OPT_TRACE_BUF_SIZE_NUM: {
1856                 if (eal_trace_bufsz_args_save(optarg) < 0) {
1857                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1858                                 OPT_TRACE_BUF_SIZE "\n");
1859                         return -1;
1860                 }
1861                 break;
1862         }
1863
1864         case OPT_TRACE_MODE_NUM: {
1865                 if (eal_trace_mode_args_save(optarg) < 0) {
1866                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1867                                 OPT_TRACE_MODE "\n");
1868                         return -1;
1869                 }
1870                 break;
1871         }
1872 #endif /* !RTE_EXEC_ENV_WINDOWS */
1873
1874         case OPT_LCORES_NUM:
1875                 if (eal_parse_lcores(optarg) < 0) {
1876                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1877                                 OPT_LCORES "\n");
1878                         return -1;
1879                 }
1880
1881                 if (core_parsed) {
1882                         RTE_LOG(ERR, EAL, "Option --lcore is ignored, because (%s) is set!\n",
1883                                 (core_parsed == LCORE_OPT_LST) ? "-l" :
1884                                 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1885                                 "--lcore");
1886                         return -1;
1887                 }
1888
1889                 core_parsed = LCORE_OPT_MAP;
1890                 break;
1891         case OPT_LEGACY_MEM_NUM:
1892                 conf->legacy_mem = 1;
1893                 break;
1894         case OPT_SINGLE_FILE_SEGMENTS_NUM:
1895                 conf->single_file_segments = 1;
1896                 break;
1897         case OPT_IOVA_MODE_NUM:
1898                 if (eal_parse_iova_mode(optarg) < 0) {
1899                         RTE_LOG(ERR, EAL, "invalid parameters for --"
1900                                 OPT_IOVA_MODE "\n");
1901                         return -1;
1902                 }
1903                 break;
1904         case OPT_BASE_VIRTADDR_NUM:
1905                 if (eal_parse_base_virtaddr(optarg) < 0) {
1906                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1907                                         OPT_BASE_VIRTADDR "\n");
1908                         return -1;
1909                 }
1910                 break;
1911         case OPT_TELEMETRY_NUM:
1912                 break;
1913         case OPT_NO_TELEMETRY_NUM:
1914                 conf->no_telemetry = 1;
1915                 break;
1916         case OPT_FORCE_MAX_SIMD_BITWIDTH_NUM:
1917                 if (eal_parse_simd_bitwidth(optarg) < 0) {
1918                         RTE_LOG(ERR, EAL, "invalid parameter for --"
1919                                         OPT_FORCE_MAX_SIMD_BITWIDTH "\n");
1920                         return -1;
1921                 }
1922                 break;
1923
1924         /* don't know what to do, leave this to caller */
1925         default:
1926                 return 1;
1927
1928         }
1929
1930         return 0;
1931
1932 ba_conflict:
1933         RTE_LOG(ERR, EAL,
1934                 "Options allow (-a) and block (-b) can't be used at the same time\n");
1935         return -1;
1936 }
1937
1938 static void
1939 eal_auto_detect_cores(struct rte_config *cfg)
1940 {
1941         unsigned int lcore_id;
1942         unsigned int removed = 0;
1943         rte_cpuset_t affinity_set;
1944
1945         if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1946                                 &affinity_set))
1947                 CPU_ZERO(&affinity_set);
1948
1949         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1950                 if (cfg->lcore_role[lcore_id] == ROLE_RTE &&
1951                     !CPU_ISSET(lcore_id, &affinity_set)) {
1952                         cfg->lcore_role[lcore_id] = ROLE_OFF;
1953                         removed++;
1954                 }
1955         }
1956
1957         cfg->lcore_count -= removed;
1958 }
1959
1960 static void
1961 compute_ctrl_threads_cpuset(struct internal_config *internal_cfg)
1962 {
1963         rte_cpuset_t *cpuset = &internal_cfg->ctrl_cpuset;
1964         rte_cpuset_t default_set;
1965         unsigned int lcore_id;
1966
1967         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1968                 if (rte_lcore_has_role(lcore_id, ROLE_OFF))
1969                         continue;
1970                 RTE_CPU_OR(cpuset, cpuset, &lcore_config[lcore_id].cpuset);
1971         }
1972         RTE_CPU_NOT(cpuset, cpuset);
1973
1974         if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1975                                 &default_set))
1976                 CPU_ZERO(&default_set);
1977
1978         RTE_CPU_AND(cpuset, cpuset, &default_set);
1979
1980         /* if no remaining cpu, use main lcore cpu affinity */
1981         if (!CPU_COUNT(cpuset)) {
1982                 memcpy(cpuset, &lcore_config[rte_get_main_lcore()].cpuset,
1983                         sizeof(*cpuset));
1984         }
1985 }
1986
1987 int
1988 eal_cleanup_config(struct internal_config *internal_cfg)
1989 {
1990         free(internal_cfg->hugefile_prefix);
1991         free(internal_cfg->hugepage_dir);
1992         free(internal_cfg->user_mbuf_pool_ops_name);
1993
1994         return 0;
1995 }
1996
1997 int
1998 eal_adjust_config(struct internal_config *internal_cfg)
1999 {
2000         int i;
2001         struct rte_config *cfg = rte_eal_get_configuration();
2002         struct internal_config *internal_conf =
2003                 eal_get_internal_configuration();
2004
2005         if (!core_parsed)
2006                 eal_auto_detect_cores(cfg);
2007
2008         if (internal_conf->process_type == RTE_PROC_AUTO)
2009                 internal_conf->process_type = eal_proc_type_detect();
2010
2011         /* default main lcore is the first one */
2012         if (!main_lcore_parsed) {
2013                 cfg->main_lcore = rte_get_next_lcore(-1, 0, 0);
2014                 if (cfg->main_lcore >= RTE_MAX_LCORE)
2015                         return -1;
2016                 lcore_config[cfg->main_lcore].core_role = ROLE_RTE;
2017         }
2018
2019         compute_ctrl_threads_cpuset(internal_cfg);
2020
2021         /* if no memory amounts were requested, this will result in 0 and
2022          * will be overridden later, right after eal_hugepage_info_init() */
2023         for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
2024                 internal_cfg->memory += internal_cfg->socket_mem[i];
2025
2026         return 0;
2027 }
2028
2029 int
2030 eal_check_common_options(struct internal_config *internal_cfg)
2031 {
2032         struct rte_config *cfg = rte_eal_get_configuration();
2033         const struct internal_config *internal_conf =
2034                 eal_get_internal_configuration();
2035
2036         if (cfg->lcore_role[cfg->main_lcore] != ROLE_RTE) {
2037                 RTE_LOG(ERR, EAL, "Main lcore is not enabled for DPDK\n");
2038                 return -1;
2039         }
2040
2041         if (internal_cfg->process_type == RTE_PROC_INVALID) {
2042                 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
2043                 return -1;
2044         }
2045         if (internal_cfg->hugefile_prefix != NULL &&
2046                         strlen(internal_cfg->hugefile_prefix) < 1) {
2047                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_FILE_PREFIX " option\n");
2048                 return -1;
2049         }
2050         if (internal_cfg->hugepage_dir != NULL &&
2051                         strlen(internal_cfg->hugepage_dir) < 1) {
2052                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_HUGE_DIR" option\n");
2053                 return -1;
2054         }
2055         if (internal_cfg->user_mbuf_pool_ops_name != NULL &&
2056                         strlen(internal_cfg->user_mbuf_pool_ops_name) < 1) {
2057                 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_MBUF_POOL_OPS_NAME" option\n");
2058                 return -1;
2059         }
2060         if (strchr(eal_get_hugefile_prefix(), '%') != NULL) {
2061                 RTE_LOG(ERR, EAL, "Invalid char, '%%', in --"OPT_FILE_PREFIX" "
2062                         "option\n");
2063                 return -1;
2064         }
2065         if (mem_parsed && internal_cfg->force_sockets == 1) {
2066                 RTE_LOG(ERR, EAL, "Options -m and --"OPT_SOCKET_MEM" cannot "
2067                         "be specified at the same time\n");
2068                 return -1;
2069         }
2070         if (internal_cfg->no_hugetlbfs && internal_cfg->force_sockets == 1) {
2071                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_MEM" cannot "
2072                         "be specified together with --"OPT_NO_HUGE"\n");
2073                 return -1;
2074         }
2075         if (internal_cfg->no_hugetlbfs &&
2076                         internal_cfg->hugepage_file.unlink_before_mapping &&
2077                         !internal_cfg->in_memory) {
2078                 RTE_LOG(ERR, EAL, "Option --"OPT_HUGE_UNLINK" cannot "
2079                         "be specified together with --"OPT_NO_HUGE"\n");
2080                 return -1;
2081         }
2082         if (internal_conf->force_socket_limits && internal_conf->legacy_mem) {
2083                 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_LIMIT
2084                         " is only supported in non-legacy memory mode\n");
2085         }
2086         if (internal_cfg->single_file_segments &&
2087                         internal_cfg->hugepage_file.unlink_before_mapping &&
2088                         !internal_cfg->in_memory) {
2089                 RTE_LOG(ERR, EAL, "Option --"OPT_SINGLE_FILE_SEGMENTS" is "
2090                         "not compatible with --"OPT_HUGE_UNLINK"\n");
2091                 return -1;
2092         }
2093         if (!internal_cfg->hugepage_file.unlink_existing &&
2094                         internal_cfg->in_memory) {
2095                 RTE_LOG(ERR, EAL, "Option --"OPT_IN_MEMORY" is not compatible "
2096                         "with --"OPT_HUGE_UNLINK"="HUGE_UNLINK_NEVER"\n");
2097                 return -1;
2098         }
2099         if (internal_cfg->legacy_mem &&
2100                         internal_cfg->in_memory) {
2101                 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
2102                                 "with --"OPT_IN_MEMORY"\n");
2103                 return -1;
2104         }
2105         if (internal_cfg->legacy_mem && internal_cfg->match_allocations) {
2106                 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
2107                                 "with --"OPT_MATCH_ALLOCATIONS"\n");
2108                 return -1;
2109         }
2110         if (internal_cfg->no_hugetlbfs && internal_cfg->match_allocations) {
2111                 RTE_LOG(ERR, EAL, "Option --"OPT_NO_HUGE" is not compatible "
2112                                 "with --"OPT_MATCH_ALLOCATIONS"\n");
2113                 return -1;
2114         }
2115         if (internal_cfg->legacy_mem && internal_cfg->memory == 0) {
2116                 RTE_LOG(NOTICE, EAL, "Static memory layout is selected, "
2117                         "amount of reserved memory can be adjusted with "
2118                         "-m or --"OPT_SOCKET_MEM"\n");
2119         }
2120
2121         return 0;
2122 }
2123
2124 uint16_t
2125 rte_vect_get_max_simd_bitwidth(void)
2126 {
2127         const struct internal_config *internal_conf =
2128                 eal_get_internal_configuration();
2129         return internal_conf->max_simd_bitwidth.bitwidth;
2130 }
2131
2132 int
2133 rte_vect_set_max_simd_bitwidth(uint16_t bitwidth)
2134 {
2135         struct internal_config *internal_conf =
2136                 eal_get_internal_configuration();
2137         if (internal_conf->max_simd_bitwidth.forced) {
2138                 RTE_LOG(NOTICE, EAL, "Cannot set max SIMD bitwidth - user runtime override enabled");
2139                 return -EPERM;
2140         }
2141
2142         if (bitwidth < RTE_VECT_SIMD_DISABLED || !rte_is_power_of_2(bitwidth)) {
2143                 RTE_LOG(ERR, EAL, "Invalid bitwidth value!\n");
2144                 return -EINVAL;
2145         }
2146         internal_conf->max_simd_bitwidth.bitwidth = bitwidth;
2147         return 0;
2148 }
2149
2150 void
2151 eal_common_usage(void)
2152 {
2153         printf("[options]\n\n"
2154                "EAL common options:\n"
2155                "  -c COREMASK         Hexadecimal bitmask of cores to run on\n"
2156                "  -l CORELIST         List of cores to run on\n"
2157                "                      The argument format is <c1>[-c2][,c3[-c4],...]\n"
2158                "                      where c1, c2, etc are core indexes between 0 and %d\n"
2159                "  --"OPT_LCORES" COREMAP    Map lcore set to physical cpu set\n"
2160                "                      The argument format is\n"
2161                "                            '<lcores[@cpus]>[<,lcores[@cpus]>...]'\n"
2162                "                      lcores and cpus list are grouped by '(' and ')'\n"
2163                "                      Within the group, '-' is used for range separator,\n"
2164                "                      ',' is used for single number separator.\n"
2165                "                      '( )' can be omitted for single element group,\n"
2166                "                      '@' can be omitted if cpus and lcores have the same value\n"
2167                "  -s SERVICE COREMASK Hexadecimal bitmask of cores to be used as service cores\n"
2168                "  --"OPT_MAIN_LCORE" ID     Core ID that is used as main\n"
2169                "  --"OPT_MBUF_POOL_OPS_NAME" Pool ops name for mbuf to use\n"
2170                "  -n CHANNELS         Number of memory channels\n"
2171                "  -m MB               Memory to allocate (see also --"OPT_SOCKET_MEM")\n"
2172                "  -r RANKS            Force number of memory ranks (don't detect)\n"
2173                "  -b, --block         Add a device to the blocked list.\n"
2174                "                      Prevent EAL from using this device. The argument\n"
2175                "                      format for PCI devices is <domain:bus:devid.func>.\n"
2176                "  -a, --allow         Add a device to the allow list.\n"
2177                "                      Only use the specified devices. The argument format\n"
2178                "                      for PCI devices is <[domain:]bus:devid.func>.\n"
2179                "                      This option can be present several times.\n"
2180                "                      [NOTE: " OPT_DEV_ALLOW " cannot be used with "OPT_DEV_BLOCK" option]\n"
2181                "  --"OPT_VDEV"              Add a virtual device.\n"
2182                "                      The argument format is <driver><id>[,key=val,...]\n"
2183                "                      (ex: --vdev=net_pcap0,iface=eth2).\n"
2184                "  --"OPT_IOVA_MODE"   Set IOVA mode. 'pa' for IOVA_PA\n"
2185                "                      'va' for IOVA_VA\n"
2186                "  -d LIB.so|DIR       Add a driver or driver directory\n"
2187                "                      (can be used multiple times)\n"
2188                "  --"OPT_VMWARE_TSC_MAP"    Use VMware TSC map instead of native RDTSC\n"
2189                "  --"OPT_PROC_TYPE"         Type of this process (primary|secondary|auto)\n"
2190 #ifndef RTE_EXEC_ENV_WINDOWS
2191                "  --"OPT_SYSLOG"            Set syslog facility\n"
2192 #endif
2193                "  --"OPT_LOG_LEVEL"=<level> Set global log level\n"
2194                "  --"OPT_LOG_LEVEL"=<type-match>:<level>\n"
2195                "                      Set specific log level\n"
2196                "  --"OPT_LOG_LEVEL"=help    Show log types and levels\n"
2197 #ifndef RTE_EXEC_ENV_WINDOWS
2198                "  --"OPT_TRACE"=<regex-match>\n"
2199                "                      Enable trace based on regular expression trace name.\n"
2200                "                      By default, the trace is disabled.\n"
2201                "                      User must specify this option to enable trace.\n"
2202                "  --"OPT_TRACE_DIR"=<directory path>\n"
2203                "                      Specify trace directory for trace output.\n"
2204                "                      By default, trace output will created at\n"
2205                "                      $HOME directory and parameter must be\n"
2206                "                      specified once only.\n"
2207                "  --"OPT_TRACE_BUF_SIZE"=<int>\n"
2208                "                      Specify maximum size of allocated memory\n"
2209                "                      for trace output for each thread. Valid\n"
2210                "                      unit can be either 'B|K|M' for 'Bytes',\n"
2211                "                      'KBytes' and 'MBytes' respectively.\n"
2212                "                      Default is 1MB and parameter must be\n"
2213                "                      specified once only.\n"
2214                "  --"OPT_TRACE_MODE"=<o[verwrite] | d[iscard]>\n"
2215                "                      Specify the mode of update of trace\n"
2216                "                      output file. Either update on a file can\n"
2217                "                      be wrapped or discarded when file size\n"
2218                "                      reaches its maximum limit.\n"
2219                "                      Default mode is 'overwrite' and parameter\n"
2220                "                      must be specified once only.\n"
2221 #endif /* !RTE_EXEC_ENV_WINDOWS */
2222                "  -v                  Display version information on startup\n"
2223                "  -h, --help          This help\n"
2224                "  --"OPT_IN_MEMORY"   Operate entirely in memory. This will\n"
2225                "                      disable secondary process support\n"
2226                "  --"OPT_BASE_VIRTADDR"     Base virtual address\n"
2227                "  --"OPT_TELEMETRY"   Enable telemetry support (on by default)\n"
2228                "  --"OPT_NO_TELEMETRY"   Disable telemetry support\n"
2229                "  --"OPT_FORCE_MAX_SIMD_BITWIDTH" Force the max SIMD bitwidth\n"
2230                "\nEAL options for DEBUG use only:\n"
2231                "  --"OPT_HUGE_UNLINK"[=existing|always|never]\n"
2232                "                      When to unlink files in hugetlbfs\n"
2233                "                      ('existing' by default, no value means 'always')\n"
2234                "  --"OPT_NO_HUGE"           Use malloc instead of hugetlbfs\n"
2235                "  --"OPT_NO_PCI"            Disable PCI\n"
2236                "  --"OPT_NO_HPET"           Disable HPET\n"
2237                "  --"OPT_NO_SHCONF"         No shared config (mmap'd files)\n"
2238                "\n", RTE_MAX_LCORE);
2239 }