1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2014 Intel Corporation.
3 * Copyright(c) 2014 6WIND S.A.
9 #ifndef RTE_EXEC_ENV_WINDOWS
16 #ifndef RTE_EXEC_ENV_WINDOWS
20 #include <sys/types.h>
22 #ifndef RTE_EXEC_ENV_WINDOWS
26 #include <rte_string_fns.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>
40 #include "eal_internal_cfg.h"
41 #include "eal_options.h"
42 #include "eal_filesystem.h"
43 #include "eal_private.h"
45 #ifndef RTE_EXEC_ENV_WINDOWS
46 #include "eal_trace.h"
49 #define BITS_PER_HEX 4
50 #define LCORE_OPT_LST 1
51 #define LCORE_OPT_MSK 2
52 #define LCORE_OPT_MAP 3
59 "s:" /* service coremask */
63 "S:" /* service corelist */
64 "m:" /* memory size */
65 "n:" /* memory channels */
66 "r:" /* memory ranks */
68 "w:" /* pci-whitelist (deprecated) */
72 eal_long_options[] = {
73 {OPT_BASE_VIRTADDR, 1, NULL, OPT_BASE_VIRTADDR_NUM },
74 {OPT_CREATE_UIO_DEV, 0, NULL, OPT_CREATE_UIO_DEV_NUM },
75 {OPT_FILE_PREFIX, 1, NULL, OPT_FILE_PREFIX_NUM },
76 {OPT_HELP, 0, NULL, OPT_HELP_NUM },
77 {OPT_HUGE_DIR, 1, NULL, OPT_HUGE_DIR_NUM },
78 {OPT_HUGE_UNLINK, 0, NULL, OPT_HUGE_UNLINK_NUM },
79 {OPT_IOVA_MODE, 1, NULL, OPT_IOVA_MODE_NUM },
80 {OPT_LCORES, 1, NULL, OPT_LCORES_NUM },
81 {OPT_LOG_LEVEL, 1, NULL, OPT_LOG_LEVEL_NUM },
82 {OPT_TRACE, 1, NULL, OPT_TRACE_NUM },
83 {OPT_TRACE_DIR, 1, NULL, OPT_TRACE_DIR_NUM },
84 {OPT_TRACE_BUF_SIZE, 1, NULL, OPT_TRACE_BUF_SIZE_NUM },
85 {OPT_TRACE_MODE, 1, NULL, OPT_TRACE_MODE_NUM },
86 {OPT_MASTER_LCORE, 1, NULL, OPT_MASTER_LCORE_NUM },
87 {OPT_MAIN_LCORE, 1, NULL, OPT_MAIN_LCORE_NUM },
88 {OPT_MBUF_POOL_OPS_NAME, 1, NULL, OPT_MBUF_POOL_OPS_NAME_NUM},
89 {OPT_NO_HPET, 0, NULL, OPT_NO_HPET_NUM },
90 {OPT_NO_HUGE, 0, NULL, OPT_NO_HUGE_NUM },
91 {OPT_NO_PCI, 0, NULL, OPT_NO_PCI_NUM },
92 {OPT_NO_SHCONF, 0, NULL, OPT_NO_SHCONF_NUM },
93 {OPT_IN_MEMORY, 0, NULL, OPT_IN_MEMORY_NUM },
94 {OPT_DEV_BLOCK, 1, NULL, OPT_DEV_BLOCK_NUM },
95 {OPT_DEV_ALLOW, 1, NULL, OPT_DEV_ALLOW_NUM },
96 {OPT_PROC_TYPE, 1, NULL, OPT_PROC_TYPE_NUM },
97 {OPT_SOCKET_MEM, 1, NULL, OPT_SOCKET_MEM_NUM },
98 {OPT_SOCKET_LIMIT, 1, NULL, OPT_SOCKET_LIMIT_NUM },
99 {OPT_SYSLOG, 1, NULL, OPT_SYSLOG_NUM },
100 {OPT_VDEV, 1, NULL, OPT_VDEV_NUM },
101 {OPT_VFIO_INTR, 1, NULL, OPT_VFIO_INTR_NUM },
102 {OPT_VFIO_VF_TOKEN, 1, NULL, OPT_VFIO_VF_TOKEN_NUM },
103 {OPT_VMWARE_TSC_MAP, 0, NULL, OPT_VMWARE_TSC_MAP_NUM },
104 {OPT_LEGACY_MEM, 0, NULL, OPT_LEGACY_MEM_NUM },
105 {OPT_SINGLE_FILE_SEGMENTS, 0, NULL, OPT_SINGLE_FILE_SEGMENTS_NUM},
106 {OPT_MATCH_ALLOCATIONS, 0, NULL, OPT_MATCH_ALLOCATIONS_NUM},
107 {OPT_TELEMETRY, 0, NULL, OPT_TELEMETRY_NUM },
108 {OPT_NO_TELEMETRY, 0, NULL, OPT_NO_TELEMETRY_NUM },
109 {OPT_FORCE_MAX_SIMD_BITWIDTH, 1, NULL, OPT_FORCE_MAX_SIMD_BITWIDTH_NUM},
111 /* legacy options that will be removed in future */
112 {OPT_PCI_BLACKLIST, 1, NULL, OPT_PCI_BLACKLIST_NUM },
113 {OPT_PCI_WHITELIST, 1, NULL, OPT_PCI_WHITELIST_NUM },
118 TAILQ_HEAD(shared_driver_list, shared_driver);
120 /* Definition for shared object drivers. */
121 struct shared_driver {
122 TAILQ_ENTRY(shared_driver) next;
128 /* List of external loadable drivers */
129 static struct shared_driver_list solib_list =
130 TAILQ_HEAD_INITIALIZER(solib_list);
132 #ifndef RTE_EXEC_ENV_WINDOWS
133 /* Default path of external loadable drivers */
134 static const char *default_solib_dir = RTE_EAL_PMD_PATH;
138 * Stringified version of solib path used by dpdk-pmdinfo.py
139 * Note: PLEASE DO NOT ALTER THIS without making a corresponding
140 * change to usertools/dpdk-pmdinfo.py
142 static const char dpdk_solib_path[] __rte_used =
143 "DPDK_PLUGIN_PATH=" RTE_EAL_PMD_PATH;
145 TAILQ_HEAD(device_option_list, device_option);
147 struct device_option {
148 TAILQ_ENTRY(device_option) next;
150 enum rte_devtype type;
154 static struct device_option_list devopt_list =
155 TAILQ_HEAD_INITIALIZER(devopt_list);
157 static int main_lcore_parsed;
158 static int mem_parsed;
159 static int core_parsed;
161 /* Allow the application to print its usage message too if set */
162 static rte_usage_hook_t rte_application_usage_hook;
164 /* Returns rte_usage_hook_t */
166 eal_get_application_usage_hook(void)
168 return rte_application_usage_hook;
171 /* Set a per-application usage message */
173 rte_set_application_usage_hook(rte_usage_hook_t usage_func)
175 rte_usage_hook_t old_func;
177 /* Will be NULL on the first call to denote the last usage routine. */
178 old_func = rte_application_usage_hook;
179 rte_application_usage_hook = usage_func;
184 #ifndef RTE_EXEC_ENV_WINDOWS
185 static char **eal_args;
186 static char **eal_app_args;
188 #define EAL_PARAM_REQ "/eal/params"
189 #define EAL_APP_PARAM_REQ "/eal/app_params"
191 /* callback handler for telemetry library to report out EAL flags */
193 handle_eal_info_request(const char *cmd, const char *params __rte_unused,
194 struct rte_tel_data *d)
200 if (strcmp(cmd, EAL_PARAM_REQ) == 0)
205 rte_tel_data_start_array(d, RTE_TEL_STRING_VAL);
206 if (args == NULL || args[0] == NULL)
209 for ( ; args[i] != NULL; i++)
210 used = rte_tel_data_add_array_string(d, args[i]);
215 eal_save_args(int argc, char **argv)
219 rte_telemetry_register_cmd(EAL_PARAM_REQ, handle_eal_info_request,
220 "Returns EAL commandline parameters used. Takes no parameters");
221 rte_telemetry_register_cmd(EAL_APP_PARAM_REQ, handle_eal_info_request,
222 "Returns app commandline parameters used. Takes no parameters");
224 /* clone argv to report out later. We overprovision, but
225 * this does not waste huge amounts of memory
227 eal_args = calloc(argc + 1, sizeof(*eal_args));
228 if (eal_args == NULL)
231 for (i = 0; i < argc; i++) {
232 eal_args[i] = strdup(argv[i]);
233 if (strcmp(argv[i], "--") == 0)
236 eal_args[i++] = NULL; /* always finish with NULL */
238 /* allow reporting of any app args we know about too */
242 eal_app_args = calloc(argc - i + 1, sizeof(*eal_args));
243 if (eal_app_args == NULL)
246 for (j = 0; i < argc; j++, i++)
247 eal_app_args[j] = strdup(argv[i]);
248 eal_app_args[j] = NULL;
255 eal_option_device_add(enum rte_devtype type, const char *optarg)
257 struct device_option *devopt;
261 optlen = strlen(optarg) + 1;
262 devopt = calloc(1, sizeof(*devopt) + optlen);
263 if (devopt == NULL) {
264 RTE_LOG(ERR, EAL, "Unable to allocate device option\n");
269 ret = strlcpy(devopt->arg, optarg, optlen);
271 RTE_LOG(ERR, EAL, "Unable to copy device option\n");
275 TAILQ_INSERT_TAIL(&devopt_list, devopt, next);
280 eal_option_device_parse(void)
282 struct device_option *devopt;
286 TAILQ_FOREACH_SAFE(devopt, &devopt_list, next, tmp) {
288 ret = rte_devargs_add(devopt->type, devopt->arg);
290 RTE_LOG(ERR, EAL, "Unable to parse device '%s'\n",
293 TAILQ_REMOVE(&devopt_list, devopt, next);
300 eal_get_hugefile_prefix(void)
302 const struct internal_config *internal_conf =
303 eal_get_internal_configuration();
305 if (internal_conf->hugefile_prefix != NULL)
306 return internal_conf->hugefile_prefix;
307 return HUGEFILE_PREFIX_DEFAULT;
311 eal_reset_internal_config(struct internal_config *internal_cfg)
315 internal_cfg->memory = 0;
316 internal_cfg->force_nrank = 0;
317 internal_cfg->force_nchannel = 0;
318 internal_cfg->hugefile_prefix = NULL;
319 internal_cfg->hugepage_dir = NULL;
320 internal_cfg->force_sockets = 0;
321 /* zero out the NUMA config */
322 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
323 internal_cfg->socket_mem[i] = 0;
324 internal_cfg->force_socket_limits = 0;
325 /* zero out the NUMA limits config */
326 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
327 internal_cfg->socket_limit[i] = 0;
328 /* zero out hugedir descriptors */
329 for (i = 0; i < MAX_HUGEPAGE_SIZES; i++) {
330 memset(&internal_cfg->hugepage_info[i], 0,
331 sizeof(internal_cfg->hugepage_info[0]));
332 internal_cfg->hugepage_info[i].lock_descriptor = -1;
334 internal_cfg->base_virtaddr = 0;
337 internal_cfg->syslog_facility = LOG_DAEMON;
340 /* if set to NONE, interrupt mode is determined automatically */
341 internal_cfg->vfio_intr_mode = RTE_INTR_MODE_NONE;
342 memset(internal_cfg->vfio_vf_token, 0,
343 sizeof(internal_cfg->vfio_vf_token));
345 #ifdef RTE_LIBEAL_USE_HPET
346 internal_cfg->no_hpet = 0;
348 internal_cfg->no_hpet = 1;
350 internal_cfg->vmware_tsc_map = 0;
351 internal_cfg->create_uio_dev = 0;
352 internal_cfg->iova_mode = RTE_IOVA_DC;
353 internal_cfg->user_mbuf_pool_ops_name = NULL;
354 CPU_ZERO(&internal_cfg->ctrl_cpuset);
355 internal_cfg->init_complete = 0;
356 internal_cfg->max_simd_bitwidth.bitwidth = RTE_VECT_DEFAULT_SIMD_BITWIDTH;
357 internal_cfg->max_simd_bitwidth.forced = 0;
361 eal_plugin_add(const char *path)
363 struct shared_driver *solib;
365 solib = malloc(sizeof(*solib));
367 RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
370 memset(solib, 0, sizeof(*solib));
371 strlcpy(solib->name, path, PATH_MAX);
372 TAILQ_INSERT_TAIL(&solib_list, solib, next);
377 #ifdef RTE_EXEC_ENV_WINDOWS
379 eal_plugins_init(void)
386 eal_plugindir_init(const char *path)
389 struct dirent *dent = NULL;
390 char sopath[PATH_MAX];
392 if (path == NULL || *path == '\0')
397 RTE_LOG(ERR, EAL, "failed to open directory %s: %s\n",
398 path, strerror(errno));
402 while ((dent = readdir(d)) != NULL) {
404 int nlen = strnlen(dent->d_name, sizeof(dent->d_name));
406 /* check if name ends in .so or .so.ABI_VERSION */
407 if (strcmp(&dent->d_name[nlen - 3], ".so") != 0 &&
408 strcmp(&dent->d_name[nlen - 4 - strlen(ABI_VERSION)],
409 ".so."ABI_VERSION) != 0)
412 snprintf(sopath, sizeof(sopath), "%s/%s", path, dent->d_name);
414 /* if a regular file, add to list to load */
415 if (!(stat(sopath, &sb) == 0 && S_ISREG(sb.st_mode)))
418 if (eal_plugin_add(sopath) == -1)
423 /* XXX this ignores failures from readdir() itself */
424 return (dent == NULL) ? 0 : -1;
428 verify_perms(const char *dirpath)
432 /* if not root, check down one level first */
433 if (strcmp(dirpath, "/") != 0) {
434 static __thread char last_dir_checked[PATH_MAX];
438 strlcpy(copy, dirpath, PATH_MAX);
440 if (strncmp(dir, last_dir_checked, PATH_MAX) != 0) {
441 if (verify_perms(dir) != 0)
443 strlcpy(last_dir_checked, dir, PATH_MAX);
447 /* call stat to check for permissions and ensure not world writable */
448 if (stat(dirpath, &st) != 0) {
449 RTE_LOG(ERR, EAL, "Error with stat on %s, %s\n",
450 dirpath, strerror(errno));
453 if (st.st_mode & S_IWOTH) {
455 "Error, directory path %s is world-writable and insecure\n",
464 eal_dlopen(const char *pathname)
467 char *realp = realpath(pathname, NULL);
469 if (realp == NULL && errno == ENOENT) {
470 /* not a full or relative path, try a load from system dirs */
471 retval = dlopen(pathname, RTLD_NOW);
473 RTE_LOG(ERR, EAL, "%s\n", dlerror());
477 RTE_LOG(ERR, EAL, "Error with realpath for %s, %s\n",
478 pathname, strerror(errno));
481 if (strnlen(realp, PATH_MAX) == PATH_MAX) {
482 RTE_LOG(ERR, EAL, "Error, driver path greater than PATH_MAX\n");
486 /* do permissions checks */
487 if (verify_perms(realp) != 0)
490 retval = dlopen(realp, RTLD_NOW);
492 RTE_LOG(ERR, EAL, "%s\n", dlerror());
499 is_shared_build(void)
501 #define EAL_SO "librte_eal.so"
503 size_t len, minlen = strlen(EAL_SO);
505 len = strlcpy(soname, EAL_SO"."ABI_VERSION, sizeof(soname));
506 if (len > sizeof(soname)) {
507 RTE_LOG(ERR, EAL, "Shared lib name too long in shared build check\n");
508 len = sizeof(soname) - 1;
511 while (len >= minlen) {
512 /* check if we have this .so loaded, if so - shared build */
513 RTE_LOG(DEBUG, EAL, "Checking presence of .so '%s'\n", soname);
514 if (dlopen(soname, RTLD_LAZY | RTLD_NOLOAD) != NULL) {
515 RTE_LOG(INFO, EAL, "Detected shared linkage of DPDK\n");
519 /* remove any version numbers off the end to retry */
521 if (soname[len] == '.') {
527 RTE_LOG(INFO, EAL, "Detected static linkage of DPDK\n");
532 eal_plugins_init(void)
534 struct shared_driver *solib = NULL;
537 /* If we are not statically linked, add default driver loading
538 * path if it exists as a directory.
539 * (Using dlopen with NOLOAD flag on EAL, will return NULL if the EAL
540 * shared library is not already loaded i.e. it's statically linked.)
542 if (is_shared_build() &&
543 *default_solib_dir != '\0' &&
544 stat(default_solib_dir, &sb) == 0 &&
546 eal_plugin_add(default_solib_dir);
548 TAILQ_FOREACH(solib, &solib_list, next) {
550 if (stat(solib->name, &sb) == 0 && S_ISDIR(sb.st_mode)) {
551 if (eal_plugindir_init(solib->name) == -1) {
553 "Cannot init plugin directory %s\n",
558 RTE_LOG(DEBUG, EAL, "open shared lib %s\n",
560 solib->lib_handle = eal_dlopen(solib->name);
561 if (solib->lib_handle == NULL)
571 * Parse the coremask given as argument (hexadecimal string) and fill
572 * the global configuration (core role and core count) with the parsed
575 static int xdigit2val(unsigned char c)
589 eal_parse_service_coremask(const char *coremask)
591 struct rte_config *cfg = rte_eal_get_configuration();
593 unsigned int count = 0;
596 uint32_t taken_lcore_count = 0;
598 if (coremask == NULL)
600 /* Remove all blank characters ahead and after .
601 * Remove 0x/0X if exists.
603 while (isblank(*coremask))
605 if (coremask[0] == '0' && ((coremask[1] == 'x')
606 || (coremask[1] == 'X')))
608 i = strlen(coremask);
609 while ((i > 0) && isblank(coremask[i - 1]))
615 for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
617 if (isxdigit(c) == 0) {
618 /* invalid characters */
622 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE;
624 if ((1 << j) & val) {
625 /* handle main lcore already parsed */
626 uint32_t lcore = idx;
627 if (main_lcore_parsed &&
628 cfg->main_lcore == lcore) {
630 "lcore %u is main lcore, cannot use as service core\n",
635 if (eal_cpu_detected(idx) == 0) {
637 "lcore %u unavailable\n", idx);
641 if (cfg->lcore_role[idx] == ROLE_RTE)
644 lcore_config[idx].core_role = ROLE_SERVICE;
651 if (coremask[i] != '0')
654 for (; idx < RTE_MAX_LCORE; idx++)
655 lcore_config[idx].core_index = -1;
660 if (core_parsed && taken_lcore_count != count) {
661 RTE_LOG(WARNING, EAL,
662 "Not all service cores are in the coremask. "
663 "Please ensure -c or -l includes service cores\n");
666 cfg->service_lcore_count = count;
671 eal_service_cores_parsed(void)
674 for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
675 if (lcore_config[idx].core_role == ROLE_SERVICE)
682 update_lcore_config(int *cores)
684 struct rte_config *cfg = rte_eal_get_configuration();
685 unsigned int count = 0;
689 for (i = 0; i < RTE_MAX_LCORE; i++) {
690 if (cores[i] != -1) {
691 if (eal_cpu_detected(i) == 0) {
692 RTE_LOG(ERR, EAL, "lcore %u unavailable\n", i);
696 cfg->lcore_role[i] = ROLE_RTE;
699 cfg->lcore_role[i] = ROLE_OFF;
701 lcore_config[i].core_index = cores[i];
704 cfg->lcore_count = count;
709 eal_parse_coremask(const char *coremask, int *cores)
716 for (idx = 0; idx < RTE_MAX_LCORE; idx++)
720 /* Remove all blank characters ahead and after .
721 * Remove 0x/0X if exists.
723 while (isblank(*coremask))
725 if (coremask[0] == '0' && ((coremask[1] == 'x')
726 || (coremask[1] == 'X')))
728 i = strlen(coremask);
729 while ((i > 0) && isblank(coremask[i - 1]))
734 for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
736 if (isxdigit(c) == 0) {
737 /* invalid characters */
741 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++)
743 if ((1 << j) & val) {
750 if (coremask[i] != '0')
758 eal_parse_service_corelist(const char *corelist)
760 struct rte_config *cfg = rte_eal_get_configuration();
765 uint32_t taken_lcore_count = 0;
767 if (corelist == NULL)
770 /* Remove all blank characters ahead and after */
771 while (isblank(*corelist))
773 i = strlen(corelist);
774 while ((i > 0) && isblank(corelist[i - 1]))
777 /* Get list of cores */
780 while (isblank(*corelist))
782 if (*corelist == '\0')
785 idx = strtoul(corelist, &end, 10);
786 if (errno || end == NULL)
788 while (isblank(*end))
792 } else if ((*end == ',') || (*end == '\0')) {
794 if (min == RTE_MAX_LCORE)
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 &&
803 "Error: lcore %u is main lcore, cannot use as service core\n",
807 if (cfg->lcore_role[idx] == ROLE_RTE)
810 lcore_config[idx].core_role =
819 } while (*end != '\0');
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");
834 eal_parse_corelist(const char *corelist, int *cores)
841 for (idx = 0; idx < RTE_MAX_LCORE; idx++)
844 /* Remove all blank characters ahead */
845 while (isblank(*corelist))
848 /* Get list of cores */
851 while (isblank(*corelist))
853 if (*corelist == '\0')
856 idx = strtol(corelist, &end, 10);
857 if (errno || end == NULL)
859 if (idx < 0 || idx >= RTE_MAX_LCORE)
861 while (isblank(*end))
865 } else if ((*end == ',') || (*end == '\0')) {
867 if (min == RTE_MAX_LCORE)
869 for (idx = min; idx <= max; idx++) {
870 if (cores[idx] == -1) {
879 } while (*end != '\0');
886 /* Changes the lcore id of the main thread */
888 eal_parse_main_lcore(const char *arg)
891 struct rte_config *cfg = rte_eal_get_configuration();
894 cfg->main_lcore = (uint32_t) strtol(arg, &parsing_end, 0);
895 if (errno || parsing_end[0] != 0)
897 if (cfg->main_lcore >= RTE_MAX_LCORE)
899 main_lcore_parsed = 1;
901 /* ensure main core is not used as service core */
902 if (lcore_config[cfg->main_lcore].core_role == ROLE_SERVICE) {
904 "Error: Main lcore is used as a service core\n");
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.
920 eal_parse_set(const char *input, rte_cpuset_t *set)
923 const char *str = input;
929 while (isblank(*str))
932 /* only digit or left bracket is qualify for start point */
933 if ((!isdigit(*str) && *str != '(') || *str == '\0')
936 /* process single number or single range of number */
939 idx = strtoul(str, &end, 10);
940 if (errno || end == NULL || idx >= CPU_SETSIZE)
943 while (isblank(*end))
949 /* process single <number>-<number> */
951 while (isblank(*end))
957 idx = strtoul(end, &end, 10);
958 if (errno || end == NULL || idx >= CPU_SETSIZE)
961 while (isblank(*end))
963 if (*end != ',' && *end != '\0')
967 if (*end != ',' && *end != '\0' &&
971 for (idx = RTE_MIN(min, max);
972 idx <= RTE_MAX(min, max); idx++)
979 /* process set within bracket */
981 while (isblank(*str))
989 /* go ahead to the first digit */
990 while (isblank(*str))
995 /* get the digit value */
997 idx = strtoul(str, &end, 10);
998 if (errno || end == NULL || idx >= CPU_SETSIZE)
1001 /* go ahead to separator '-',',' and ')' */
1002 while (isblank(*end))
1005 if (min == RTE_MAX_LCORE)
1007 else /* avoid continuous '-' */
1009 } else if ((*end == ',') || (*end == ')')) {
1011 if (min == RTE_MAX_LCORE)
1013 for (idx = RTE_MIN(min, max);
1014 idx <= RTE_MAX(min, max); idx++)
1017 min = RTE_MAX_LCORE;
1022 } while (*end != '\0' && *end != ')');
1025 * to avoid failure that tail blank makes end character check fail
1026 * in eal_parse_lcores( )
1028 while (isblank(*str))
1035 check_cpuset(rte_cpuset_t *set)
1039 for (idx = 0; idx < CPU_SETSIZE; idx++) {
1040 if (!CPU_ISSET(idx, set))
1043 if (eal_cpu_detected(idx) == 0) {
1044 RTE_LOG(ERR, EAL, "core %u "
1045 "unavailable\n", idx);
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)
1067 eal_parse_lcores(const char *lcores)
1069 struct rte_config *cfg = rte_eal_get_configuration();
1070 rte_cpuset_t lcore_set;
1071 unsigned int set_count;
1074 const char *lcore_start = NULL;
1075 const char *end = NULL;
1077 rte_cpuset_t cpuset;
1084 /* Remove all blank characters ahead and after */
1085 while (isblank(*lcores))
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);
1097 /* Get list of cores */
1099 while (isblank(*lcores))
1101 if (*lcores == '\0')
1106 /* record lcore_set start point */
1107 lcore_start = lcores;
1109 /* go across a complete bracket */
1110 if (*lcore_start == '(') {
1111 lcores += strcspn(lcores, ")");
1112 if (*lcores++ == '\0')
1116 /* scan the separator '@', ','(next) or '\0'(finish) */
1117 lcores += strcspn(lcores, "@,");
1119 if (*lcores == '@') {
1120 /* explicit assign cpuset and update the end cursor */
1121 offset = eal_parse_set(lcores + 1, &cpuset);
1124 end = lcores + 1 + offset;
1125 } else { /* ',' or '\0' */
1126 /* haven't given cpuset, current loop done */
1129 /* go back to check <number>-<number> */
1130 offset = strcspn(lcore_start, "(-");
1131 if (offset < (end - lcore_start) &&
1132 *(lcore_start + offset) != '(')
1136 if (*end != ',' && *end != '\0')
1139 /* parse lcore_set from start point */
1140 if (eal_parse_set(lcore_start, &lcore_set) < 0)
1143 /* without '@', by default using lcore_set as cpuset */
1145 rte_memcpy(&cpuset, &lcore_set, sizeof(cpuset));
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))
1154 if (cfg->lcore_role[idx] != ROLE_RTE) {
1155 lcore_config[idx].core_index = count;
1156 cfg->lcore_role[idx] = ROLE_RTE;
1162 CPU_SET(idx, &cpuset);
1165 if (check_cpuset(&cpuset) < 0)
1167 rte_memcpy(&lcore_config[idx].cpuset, &cpuset,
1168 sizeof(rte_cpuset_t));
1171 /* some cores from the lcore_set can't be handled by EAL */
1176 } while (*end != '\0');
1181 cfg->lcore_count = count;
1189 #ifndef RTE_EXEC_ENV_WINDOWS
1191 eal_parse_syslog(const char *facility, struct internal_config *conf)
1194 static const struct {
1198 { "auth", LOG_AUTH },
1199 { "cron", LOG_CRON },
1200 { "daemon", LOG_DAEMON },
1202 { "kern", LOG_KERN },
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 },
1220 for (i = 0; map[i].name; i++) {
1221 if (!strcmp(facility, map[i].name)) {
1222 conf->syslog_facility = map[i].value;
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");
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");
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));
1253 eal_parse_log_priority(const char *level)
1255 size_t len = strlen(level);
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)
1269 /* not a string, maybe it is numeric */
1271 tmp = strtoul(level, &end, 0);
1273 /* check for errors */
1274 if (errno != 0 || end == NULL || *end != '\0' ||
1282 eal_parse_log_level(const char *arg)
1284 const char *pattern = NULL;
1285 const char *regex = NULL;
1289 if (strcmp(arg, "help") == 0) {
1298 if ((level = strchr(str, ','))) {
1301 } else if ((level = strchr(str, ':'))) {
1308 priority = eal_parse_log_priority(level);
1309 if (priority <= 0) {
1310 fprintf(stderr, "Invalid log level: %s\n", level);
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;
1320 if (rte_log_set_level_regexp(regex, priority) < 0) {
1321 fprintf(stderr, "cannot set log level %s,%d\n",
1325 if (eal_log_save_regexp(regex, priority) < 0)
1327 } else if (pattern) {
1328 if (rte_log_set_level_pattern(pattern, priority) < 0) {
1329 fprintf(stderr, "cannot set log level %s:%d\n",
1333 if (eal_log_save_pattern(pattern, priority) < 0)
1336 rte_log_set_global_level(priority);
1347 static enum rte_proc_type_t
1348 eal_parse_proc_type(const char *arg)
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;
1357 return RTE_PROC_INVALID;
1361 eal_parse_iova_mode(const char *name)
1364 struct internal_config *internal_conf =
1365 eal_get_internal_configuration();
1370 if (!strcmp("pa", name))
1372 else if (!strcmp("va", name))
1377 internal_conf->iova_mode = mode;
1382 eal_parse_simd_bitwidth(const char *arg)
1385 unsigned long bitwidth;
1387 struct internal_config *internal_conf =
1388 eal_get_internal_configuration();
1390 if (arg == NULL || arg[0] == '\0')
1394 bitwidth = strtoul(arg, &end, 0);
1396 /* check for errors */
1397 if (errno != 0 || end == NULL || *end != '\0' || bitwidth > RTE_VECT_SIMD_MAX)
1401 bitwidth = (unsigned long) RTE_VECT_SIMD_MAX;
1402 ret = rte_vect_set_max_simd_bitwidth(bitwidth);
1405 internal_conf->max_simd_bitwidth.forced = 1;
1410 eal_parse_base_virtaddr(const char *arg)
1414 struct internal_config *internal_conf =
1415 eal_get_internal_configuration();
1418 addr = strtoull(arg, &end, 16);
1420 /* check for errors */
1421 if ((errno != 0) || (arg[0] == '\0') || end == NULL || (*end != '\0'))
1424 /* make sure we don't exceed 32-bit boundary on 32-bit target */
1426 if (addr >= UINTPTR_MAX)
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.
1435 internal_conf->base_virtaddr =
1436 RTE_PTR_ALIGN_CEIL((uintptr_t)addr, (size_t)RTE_PGSIZE_16M);
1441 /* caller is responsible for freeing the returned string */
1443 available_cores(void)
1451 /* find the first available cpu */
1452 for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
1453 if (eal_cpu_detected(idx) == 0)
1457 if (idx >= RTE_MAX_LCORE)
1460 /* first sequence */
1461 if (asprintf(&str, "%d", idx) < 0)
1466 for (idx++ ; idx < RTE_MAX_LCORE; idx++) {
1467 if (eal_cpu_detected(idx) == 0)
1470 if (idx == previous + 1) {
1476 /* finish current sequence */
1478 if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
1487 if (asprintf(&tmp, "%s,%d", str, idx) < 0) {
1497 /* finish last sequence */
1499 if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
1511 eal_parse_common_option(int opt, const char *optarg,
1512 struct internal_config *conf)
1518 case OPT_PCI_BLACKLIST_NUM:
1520 "Option --pci-blacklist is deprecated, use -b, --block instead\n");
1525 if (eal_option_device_add(RTE_DEVTYPE_BLOCKED, optarg) < 0)
1532 "Option -w, --pci-whitelist is deprecated, use -a, --allow option instead\n");
1537 if (eal_option_device_add(RTE_DEVTYPE_ALLOWED, optarg) < 0)
1543 int lcore_indexes[RTE_MAX_LCORE];
1545 if (eal_service_cores_parsed())
1546 RTE_LOG(WARNING, EAL,
1547 "Service cores parsed before dataplane cores. Please ensure -c is before -s or -S\n");
1548 if (eal_parse_coremask(optarg, lcore_indexes) < 0) {
1549 RTE_LOG(ERR, EAL, "invalid coremask syntax\n");
1552 if (update_lcore_config(lcore_indexes) < 0) {
1553 char *available = available_cores();
1556 "invalid coremask, please check specified cores are part of %s\n",
1563 RTE_LOG(ERR, EAL, "Option -c is ignored, because (%s) is set!\n",
1564 (core_parsed == LCORE_OPT_LST) ? "-l" :
1565 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1570 core_parsed = LCORE_OPT_MSK;
1575 int lcore_indexes[RTE_MAX_LCORE];
1577 if (eal_service_cores_parsed())
1578 RTE_LOG(WARNING, EAL,
1579 "Service cores parsed before dataplane cores. Please ensure -l is before -s or -S\n");
1581 if (eal_parse_corelist(optarg, lcore_indexes) < 0) {
1582 RTE_LOG(ERR, EAL, "invalid core list syntax\n");
1585 if (update_lcore_config(lcore_indexes) < 0) {
1586 char *available = available_cores();
1589 "invalid core list, please check specified cores are part of %s\n",
1596 RTE_LOG(ERR, EAL, "Option -l is ignored, because (%s) is set!\n",
1597 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1598 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1603 core_parsed = LCORE_OPT_LST;
1606 /* service coremask */
1608 if (eal_parse_service_coremask(optarg) < 0) {
1609 RTE_LOG(ERR, EAL, "invalid service coremask\n");
1613 /* service corelist */
1615 if (eal_parse_service_corelist(optarg) < 0) {
1616 RTE_LOG(ERR, EAL, "invalid service core list\n");
1620 /* size of memory */
1622 conf->memory = atoi(optarg);
1623 conf->memory *= 1024ULL;
1624 conf->memory *= 1024ULL;
1627 /* force number of channels */
1629 conf->force_nchannel = atoi(optarg);
1630 if (conf->force_nchannel == 0) {
1631 RTE_LOG(ERR, EAL, "invalid channel number\n");
1635 /* force number of ranks */
1637 conf->force_nrank = atoi(optarg);
1638 if (conf->force_nrank == 0 ||
1639 conf->force_nrank > 16) {
1640 RTE_LOG(ERR, EAL, "invalid rank number\n");
1644 /* force loading of external driver */
1646 if (eal_plugin_add(optarg) == -1)
1650 /* since message is explicitly requested by user, we
1651 * write message at highest log level so it can always
1653 * even if info or warning messages are disabled */
1654 RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
1658 case OPT_HUGE_UNLINK_NUM:
1659 conf->hugepage_unlink = 1;
1662 case OPT_NO_HUGE_NUM:
1663 conf->no_hugetlbfs = 1;
1664 /* no-huge is legacy mem */
1665 conf->legacy_mem = 1;
1668 case OPT_NO_PCI_NUM:
1672 case OPT_NO_HPET_NUM:
1676 case OPT_VMWARE_TSC_MAP_NUM:
1677 conf->vmware_tsc_map = 1;
1680 case OPT_NO_SHCONF_NUM:
1681 conf->no_shconf = 1;
1684 case OPT_IN_MEMORY_NUM:
1685 conf->in_memory = 1;
1686 /* in-memory is a superset of noshconf and huge-unlink */
1687 conf->no_shconf = 1;
1688 conf->hugepage_unlink = 1;
1691 case OPT_PROC_TYPE_NUM:
1692 conf->process_type = eal_parse_proc_type(optarg);
1695 case OPT_MASTER_LCORE_NUM:
1697 "Option --" OPT_MASTER_LCORE
1698 " is deprecated use " OPT_MAIN_LCORE "\n");
1700 case OPT_MAIN_LCORE_NUM:
1701 if (eal_parse_main_lcore(optarg) < 0) {
1702 RTE_LOG(ERR, EAL, "invalid parameter for --"
1703 OPT_MAIN_LCORE "\n");
1709 if (eal_option_device_add(RTE_DEVTYPE_VIRTUAL,
1715 #ifndef RTE_EXEC_ENV_WINDOWS
1716 case OPT_SYSLOG_NUM:
1717 if (eal_parse_syslog(optarg, conf) < 0) {
1718 RTE_LOG(ERR, EAL, "invalid parameters for --"
1725 case OPT_LOG_LEVEL_NUM: {
1726 if (eal_parse_log_level(optarg) < 0) {
1728 "invalid parameters for --"
1729 OPT_LOG_LEVEL "\n");
1735 #ifndef RTE_EXEC_ENV_WINDOWS
1736 case OPT_TRACE_NUM: {
1737 if (eal_trace_args_save(optarg) < 0) {
1738 RTE_LOG(ERR, EAL, "invalid parameters for --"
1745 case OPT_TRACE_DIR_NUM: {
1746 if (eal_trace_dir_args_save(optarg) < 0) {
1747 RTE_LOG(ERR, EAL, "invalid parameters for --"
1748 OPT_TRACE_DIR "\n");
1754 case OPT_TRACE_BUF_SIZE_NUM: {
1755 if (eal_trace_bufsz_args_save(optarg) < 0) {
1756 RTE_LOG(ERR, EAL, "invalid parameters for --"
1757 OPT_TRACE_BUF_SIZE "\n");
1763 case OPT_TRACE_MODE_NUM: {
1764 if (eal_trace_mode_args_save(optarg) < 0) {
1765 RTE_LOG(ERR, EAL, "invalid parameters for --"
1766 OPT_TRACE_MODE "\n");
1771 #endif /* !RTE_EXEC_ENV_WINDOWS */
1773 case OPT_LCORES_NUM:
1774 if (eal_parse_lcores(optarg) < 0) {
1775 RTE_LOG(ERR, EAL, "invalid parameter for --"
1781 RTE_LOG(ERR, EAL, "Option --lcore is ignored, because (%s) is set!\n",
1782 (core_parsed == LCORE_OPT_LST) ? "-l" :
1783 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1788 core_parsed = LCORE_OPT_MAP;
1790 case OPT_LEGACY_MEM_NUM:
1791 conf->legacy_mem = 1;
1793 case OPT_SINGLE_FILE_SEGMENTS_NUM:
1794 conf->single_file_segments = 1;
1796 case OPT_IOVA_MODE_NUM:
1797 if (eal_parse_iova_mode(optarg) < 0) {
1798 RTE_LOG(ERR, EAL, "invalid parameters for --"
1799 OPT_IOVA_MODE "\n");
1803 case OPT_BASE_VIRTADDR_NUM:
1804 if (eal_parse_base_virtaddr(optarg) < 0) {
1805 RTE_LOG(ERR, EAL, "invalid parameter for --"
1806 OPT_BASE_VIRTADDR "\n");
1810 case OPT_TELEMETRY_NUM:
1812 case OPT_NO_TELEMETRY_NUM:
1813 conf->no_telemetry = 1;
1815 case OPT_FORCE_MAX_SIMD_BITWIDTH_NUM:
1816 if (eal_parse_simd_bitwidth(optarg) < 0) {
1817 RTE_LOG(ERR, EAL, "invalid parameter for --"
1818 OPT_FORCE_MAX_SIMD_BITWIDTH "\n");
1823 /* don't know what to do, leave this to caller */
1833 "Options allow (-a) and block (-b) can't be used at the same time\n");
1838 eal_auto_detect_cores(struct rte_config *cfg)
1840 unsigned int lcore_id;
1841 unsigned int removed = 0;
1842 rte_cpuset_t affinity_set;
1844 if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1846 CPU_ZERO(&affinity_set);
1848 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1849 if (cfg->lcore_role[lcore_id] == ROLE_RTE &&
1850 !CPU_ISSET(lcore_id, &affinity_set)) {
1851 cfg->lcore_role[lcore_id] = ROLE_OFF;
1856 cfg->lcore_count -= removed;
1860 compute_ctrl_threads_cpuset(struct internal_config *internal_cfg)
1862 rte_cpuset_t *cpuset = &internal_cfg->ctrl_cpuset;
1863 rte_cpuset_t default_set;
1864 unsigned int lcore_id;
1866 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1867 if (rte_lcore_has_role(lcore_id, ROLE_OFF))
1869 RTE_CPU_OR(cpuset, cpuset, &lcore_config[lcore_id].cpuset);
1871 RTE_CPU_NOT(cpuset, cpuset);
1873 if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1875 CPU_ZERO(&default_set);
1877 RTE_CPU_AND(cpuset, cpuset, &default_set);
1879 /* if no remaining cpu, use main lcore cpu affinity */
1880 if (!CPU_COUNT(cpuset)) {
1881 memcpy(cpuset, &lcore_config[rte_get_main_lcore()].cpuset,
1887 eal_cleanup_config(struct internal_config *internal_cfg)
1889 if (internal_cfg->hugefile_prefix != NULL)
1890 free(internal_cfg->hugefile_prefix);
1891 if (internal_cfg->hugepage_dir != NULL)
1892 free(internal_cfg->hugepage_dir);
1893 if (internal_cfg->user_mbuf_pool_ops_name != NULL)
1894 free(internal_cfg->user_mbuf_pool_ops_name);
1900 eal_adjust_config(struct internal_config *internal_cfg)
1903 struct rte_config *cfg = rte_eal_get_configuration();
1904 struct internal_config *internal_conf =
1905 eal_get_internal_configuration();
1908 eal_auto_detect_cores(cfg);
1910 if (internal_conf->process_type == RTE_PROC_AUTO)
1911 internal_conf->process_type = eal_proc_type_detect();
1913 /* default main lcore is the first one */
1914 if (!main_lcore_parsed) {
1915 cfg->main_lcore = rte_get_next_lcore(-1, 0, 0);
1916 if (cfg->main_lcore >= RTE_MAX_LCORE)
1918 lcore_config[cfg->main_lcore].core_role = ROLE_RTE;
1921 compute_ctrl_threads_cpuset(internal_cfg);
1923 /* if no memory amounts were requested, this will result in 0 and
1924 * will be overridden later, right after eal_hugepage_info_init() */
1925 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
1926 internal_cfg->memory += internal_cfg->socket_mem[i];
1932 eal_check_common_options(struct internal_config *internal_cfg)
1934 struct rte_config *cfg = rte_eal_get_configuration();
1935 const struct internal_config *internal_conf =
1936 eal_get_internal_configuration();
1938 if (cfg->lcore_role[cfg->main_lcore] != ROLE_RTE) {
1939 RTE_LOG(ERR, EAL, "Main lcore is not enabled for DPDK\n");
1943 if (internal_cfg->process_type == RTE_PROC_INVALID) {
1944 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
1947 if (internal_cfg->hugefile_prefix != NULL &&
1948 strlen(internal_cfg->hugefile_prefix) < 1) {
1949 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_FILE_PREFIX " option\n");
1952 if (internal_cfg->hugepage_dir != NULL &&
1953 strlen(internal_cfg->hugepage_dir) < 1) {
1954 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_HUGE_DIR" option\n");
1957 if (internal_cfg->user_mbuf_pool_ops_name != NULL &&
1958 strlen(internal_cfg->user_mbuf_pool_ops_name) < 1) {
1959 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_MBUF_POOL_OPS_NAME" option\n");
1962 if (strchr(eal_get_hugefile_prefix(), '%') != NULL) {
1963 RTE_LOG(ERR, EAL, "Invalid char, '%%', in --"OPT_FILE_PREFIX" "
1967 if (mem_parsed && internal_cfg->force_sockets == 1) {
1968 RTE_LOG(ERR, EAL, "Options -m and --"OPT_SOCKET_MEM" cannot "
1969 "be specified at the same time\n");
1972 if (internal_cfg->no_hugetlbfs && internal_cfg->force_sockets == 1) {
1973 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_MEM" cannot "
1974 "be specified together with --"OPT_NO_HUGE"\n");
1977 if (internal_cfg->no_hugetlbfs && internal_cfg->hugepage_unlink &&
1978 !internal_cfg->in_memory) {
1979 RTE_LOG(ERR, EAL, "Option --"OPT_HUGE_UNLINK" cannot "
1980 "be specified together with --"OPT_NO_HUGE"\n");
1983 if (internal_conf->force_socket_limits && internal_conf->legacy_mem) {
1984 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_LIMIT
1985 " is only supported in non-legacy memory mode\n");
1987 if (internal_cfg->single_file_segments &&
1988 internal_cfg->hugepage_unlink &&
1989 !internal_cfg->in_memory) {
1990 RTE_LOG(ERR, EAL, "Option --"OPT_SINGLE_FILE_SEGMENTS" is "
1991 "not compatible with --"OPT_HUGE_UNLINK"\n");
1994 if (internal_cfg->legacy_mem &&
1995 internal_cfg->in_memory) {
1996 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
1997 "with --"OPT_IN_MEMORY"\n");
2000 if (internal_cfg->legacy_mem && internal_cfg->match_allocations) {
2001 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
2002 "with --"OPT_MATCH_ALLOCATIONS"\n");
2005 if (internal_cfg->no_hugetlbfs && internal_cfg->match_allocations) {
2006 RTE_LOG(ERR, EAL, "Option --"OPT_NO_HUGE" is not compatible "
2007 "with --"OPT_MATCH_ALLOCATIONS"\n");
2010 if (internal_cfg->legacy_mem && internal_cfg->memory == 0) {
2011 RTE_LOG(NOTICE, EAL, "Static memory layout is selected, "
2012 "amount of reserved memory can be adjusted with "
2013 "-m or --"OPT_SOCKET_MEM"\n");
2020 rte_vect_get_max_simd_bitwidth(void)
2022 const struct internal_config *internal_conf =
2023 eal_get_internal_configuration();
2024 return internal_conf->max_simd_bitwidth.bitwidth;
2028 rte_vect_set_max_simd_bitwidth(uint16_t bitwidth)
2030 struct internal_config *internal_conf =
2031 eal_get_internal_configuration();
2032 if (internal_conf->max_simd_bitwidth.forced) {
2033 RTE_LOG(NOTICE, EAL, "Cannot set max SIMD bitwidth - user runtime override enabled");
2037 if (bitwidth < RTE_VECT_SIMD_DISABLED || !rte_is_power_of_2(bitwidth)) {
2038 RTE_LOG(ERR, EAL, "Invalid bitwidth value!\n");
2041 internal_conf->max_simd_bitwidth.bitwidth = bitwidth;
2046 eal_common_usage(void)
2048 printf("[options]\n\n"
2049 "EAL common options:\n"
2050 " -c COREMASK Hexadecimal bitmask of cores to run on\n"
2051 " -l CORELIST List of cores to run on\n"
2052 " The argument format is <c1>[-c2][,c3[-c4],...]\n"
2053 " where c1, c2, etc are core indexes between 0 and %d\n"
2054 " --"OPT_LCORES" COREMAP Map lcore set to physical cpu set\n"
2055 " The argument format is\n"
2056 " '<lcores[@cpus]>[<,lcores[@cpus]>...]'\n"
2057 " lcores and cpus list are grouped by '(' and ')'\n"
2058 " Within the group, '-' is used for range separator,\n"
2059 " ',' is used for single number separator.\n"
2060 " '( )' can be omitted for single element group,\n"
2061 " '@' can be omitted if cpus and lcores have the same value\n"
2062 " -s SERVICE COREMASK Hexadecimal bitmask of cores to be used as service cores\n"
2063 " --"OPT_MAIN_LCORE" ID Core ID that is used as main\n"
2064 " --"OPT_MBUF_POOL_OPS_NAME" Pool ops name for mbuf to use\n"
2065 " -n CHANNELS Number of memory channels\n"
2066 " -m MB Memory to allocate (see also --"OPT_SOCKET_MEM")\n"
2067 " -r RANKS Force number of memory ranks (don't detect)\n"
2068 " -b, --block Add a device to the blocked list.\n"
2069 " Prevent EAL from using this device. The argument\n"
2070 " format for PCI devices is <domain:bus:devid.func>.\n"
2071 " -a, --allow Add a device to the allow list.\n"
2072 " Only use the specified devices. The argument format\n"
2073 " for PCI devices is <[domain:]bus:devid.func>.\n"
2074 " This option can be present several times.\n"
2075 " [NOTE: " OPT_DEV_ALLOW " cannot be used with "OPT_DEV_BLOCK" option]\n"
2076 " --"OPT_VDEV" Add a virtual device.\n"
2077 " The argument format is <driver><id>[,key=val,...]\n"
2078 " (ex: --vdev=net_pcap0,iface=eth2).\n"
2079 " --"OPT_IOVA_MODE" Set IOVA mode. 'pa' for IOVA_PA\n"
2080 " 'va' for IOVA_VA\n"
2081 " -d LIB.so|DIR Add a driver or driver directory\n"
2082 " (can be used multiple times)\n"
2083 " --"OPT_VMWARE_TSC_MAP" Use VMware TSC map instead of native RDTSC\n"
2084 " --"OPT_PROC_TYPE" Type of this process (primary|secondary|auto)\n"
2085 #ifndef RTE_EXEC_ENV_WINDOWS
2086 " --"OPT_SYSLOG" Set syslog facility\n"
2088 " --"OPT_LOG_LEVEL"=<level> Set global log level\n"
2089 " --"OPT_LOG_LEVEL"=<type-match>:<level>\n"
2090 " Set specific log level\n"
2091 " --"OPT_LOG_LEVEL"=help Show log types and levels\n"
2092 #ifndef RTE_EXEC_ENV_WINDOWS
2093 " --"OPT_TRACE"=<regex-match>\n"
2094 " Enable trace based on regular expression trace name.\n"
2095 " By default, the trace is disabled.\n"
2096 " User must specify this option to enable trace.\n"
2097 " --"OPT_TRACE_DIR"=<directory path>\n"
2098 " Specify trace directory for trace output.\n"
2099 " By default, trace output will created at\n"
2100 " $HOME directory and parameter must be\n"
2101 " specified once only.\n"
2102 " --"OPT_TRACE_BUF_SIZE"=<int>\n"
2103 " Specify maximum size of allocated memory\n"
2104 " for trace output for each thread. Valid\n"
2105 " unit can be either 'B|K|M' for 'Bytes',\n"
2106 " 'KBytes' and 'MBytes' respectively.\n"
2107 " Default is 1MB and parameter must be\n"
2108 " specified once only.\n"
2109 " --"OPT_TRACE_MODE"=<o[verwrite] | d[iscard]>\n"
2110 " Specify the mode of update of trace\n"
2111 " output file. Either update on a file can\n"
2112 " be wrapped or discarded when file size\n"
2113 " reaches its maximum limit.\n"
2114 " Default mode is 'overwrite' and parameter\n"
2115 " must be specified once only.\n"
2116 #endif /* !RTE_EXEC_ENV_WINDOWS */
2117 " -v Display version information on startup\n"
2118 " -h, --help This help\n"
2119 " --"OPT_IN_MEMORY" Operate entirely in memory. This will\n"
2120 " disable secondary process support\n"
2121 " --"OPT_BASE_VIRTADDR" Base virtual address\n"
2122 " --"OPT_TELEMETRY" Enable telemetry support (on by default)\n"
2123 " --"OPT_NO_TELEMETRY" Disable telemetry support\n"
2124 " --"OPT_FORCE_MAX_SIMD_BITWIDTH" Force the max SIMD bitwidth\n"
2125 "\nEAL options for DEBUG use only:\n"
2126 " --"OPT_HUGE_UNLINK" Unlink hugepage files after init\n"
2127 " --"OPT_NO_HUGE" Use malloc instead of hugetlbfs\n"
2128 " --"OPT_NO_PCI" Disable PCI\n"
2129 " --"OPT_NO_HPET" Disable HPET\n"
2130 " --"OPT_NO_SHCONF" No shared config (mmap'd files)\n"
2131 "\n", RTE_MAX_LCORE);