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 */
71 eal_long_options[] = {
72 {OPT_BASE_VIRTADDR, 1, NULL, OPT_BASE_VIRTADDR_NUM },
73 {OPT_CREATE_UIO_DEV, 0, NULL, OPT_CREATE_UIO_DEV_NUM },
74 {OPT_FILE_PREFIX, 1, NULL, OPT_FILE_PREFIX_NUM },
75 {OPT_HELP, 0, NULL, OPT_HELP_NUM },
76 {OPT_HUGE_DIR, 1, NULL, OPT_HUGE_DIR_NUM },
77 {OPT_HUGE_UNLINK, 0, NULL, OPT_HUGE_UNLINK_NUM },
78 {OPT_IOVA_MODE, 1, NULL, OPT_IOVA_MODE_NUM },
79 {OPT_LCORES, 1, NULL, OPT_LCORES_NUM },
80 {OPT_LOG_LEVEL, 1, NULL, OPT_LOG_LEVEL_NUM },
81 {OPT_TRACE, 1, NULL, OPT_TRACE_NUM },
82 {OPT_TRACE_DIR, 1, NULL, OPT_TRACE_DIR_NUM },
83 {OPT_TRACE_BUF_SIZE, 1, NULL, OPT_TRACE_BUF_SIZE_NUM },
84 {OPT_TRACE_MODE, 1, NULL, OPT_TRACE_MODE_NUM },
85 {OPT_MAIN_LCORE, 1, NULL, OPT_MAIN_LCORE_NUM },
86 {OPT_MBUF_POOL_OPS_NAME, 1, NULL, OPT_MBUF_POOL_OPS_NAME_NUM},
87 {OPT_NO_HPET, 0, NULL, OPT_NO_HPET_NUM },
88 {OPT_NO_HUGE, 0, NULL, OPT_NO_HUGE_NUM },
89 {OPT_NO_PCI, 0, NULL, OPT_NO_PCI_NUM },
90 {OPT_NO_SHCONF, 0, NULL, OPT_NO_SHCONF_NUM },
91 {OPT_IN_MEMORY, 0, NULL, OPT_IN_MEMORY_NUM },
92 {OPT_DEV_BLOCK, 1, NULL, OPT_DEV_BLOCK_NUM },
93 {OPT_DEV_ALLOW, 1, NULL, OPT_DEV_ALLOW_NUM },
94 {OPT_PROC_TYPE, 1, NULL, OPT_PROC_TYPE_NUM },
95 {OPT_SOCKET_MEM, 1, NULL, OPT_SOCKET_MEM_NUM },
96 {OPT_SOCKET_LIMIT, 1, NULL, OPT_SOCKET_LIMIT_NUM },
97 {OPT_SYSLOG, 1, NULL, OPT_SYSLOG_NUM },
98 {OPT_VDEV, 1, NULL, OPT_VDEV_NUM },
99 {OPT_VFIO_INTR, 1, NULL, OPT_VFIO_INTR_NUM },
100 {OPT_VFIO_VF_TOKEN, 1, NULL, OPT_VFIO_VF_TOKEN_NUM },
101 {OPT_VMWARE_TSC_MAP, 0, NULL, OPT_VMWARE_TSC_MAP_NUM },
102 {OPT_LEGACY_MEM, 0, NULL, OPT_LEGACY_MEM_NUM },
103 {OPT_SINGLE_FILE_SEGMENTS, 0, NULL, OPT_SINGLE_FILE_SEGMENTS_NUM},
104 {OPT_MATCH_ALLOCATIONS, 0, NULL, OPT_MATCH_ALLOCATIONS_NUM},
105 {OPT_TELEMETRY, 0, NULL, OPT_TELEMETRY_NUM },
106 {OPT_NO_TELEMETRY, 0, NULL, OPT_NO_TELEMETRY_NUM },
107 {OPT_FORCE_MAX_SIMD_BITWIDTH, 1, NULL, OPT_FORCE_MAX_SIMD_BITWIDTH_NUM},
112 TAILQ_HEAD(shared_driver_list, shared_driver);
114 /* Definition for shared object drivers. */
115 struct shared_driver {
116 TAILQ_ENTRY(shared_driver) next;
122 /* List of external loadable drivers */
123 static struct shared_driver_list solib_list =
124 TAILQ_HEAD_INITIALIZER(solib_list);
126 #ifndef RTE_EXEC_ENV_WINDOWS
127 /* Default path of external loadable drivers */
128 static const char *default_solib_dir = RTE_EAL_PMD_PATH;
132 * Stringified version of solib path used by dpdk-pmdinfo.py
133 * Note: PLEASE DO NOT ALTER THIS without making a corresponding
134 * change to usertools/dpdk-pmdinfo.py
136 static const char dpdk_solib_path[] __rte_used =
137 "DPDK_PLUGIN_PATH=" RTE_EAL_PMD_PATH;
139 TAILQ_HEAD(device_option_list, device_option);
141 struct device_option {
142 TAILQ_ENTRY(device_option) next;
144 enum rte_devtype type;
148 static struct device_option_list devopt_list =
149 TAILQ_HEAD_INITIALIZER(devopt_list);
151 static int main_lcore_parsed;
152 static int mem_parsed;
153 static int core_parsed;
155 /* Allow the application to print its usage message too if set */
156 static rte_usage_hook_t rte_application_usage_hook;
158 /* Returns rte_usage_hook_t */
160 eal_get_application_usage_hook(void)
162 return rte_application_usage_hook;
165 /* Set a per-application usage message */
167 rte_set_application_usage_hook(rte_usage_hook_t usage_func)
169 rte_usage_hook_t old_func;
171 /* Will be NULL on the first call to denote the last usage routine. */
172 old_func = rte_application_usage_hook;
173 rte_application_usage_hook = usage_func;
178 #ifndef RTE_EXEC_ENV_WINDOWS
179 static char **eal_args;
180 static char **eal_app_args;
182 #define EAL_PARAM_REQ "/eal/params"
183 #define EAL_APP_PARAM_REQ "/eal/app_params"
185 /* callback handler for telemetry library to report out EAL flags */
187 handle_eal_info_request(const char *cmd, const char *params __rte_unused,
188 struct rte_tel_data *d)
194 if (strcmp(cmd, EAL_PARAM_REQ) == 0)
199 rte_tel_data_start_array(d, RTE_TEL_STRING_VAL);
200 if (args == NULL || args[0] == NULL)
203 for ( ; args[i] != NULL; i++)
204 used = rte_tel_data_add_array_string(d, args[i]);
209 eal_save_args(int argc, char **argv)
213 rte_telemetry_register_cmd(EAL_PARAM_REQ, handle_eal_info_request,
214 "Returns EAL commandline parameters used. Takes no parameters");
215 rte_telemetry_register_cmd(EAL_APP_PARAM_REQ, handle_eal_info_request,
216 "Returns app commandline parameters used. Takes no parameters");
218 /* clone argv to report out later. We overprovision, but
219 * this does not waste huge amounts of memory
221 eal_args = calloc(argc + 1, sizeof(*eal_args));
222 if (eal_args == NULL)
225 for (i = 0; i < argc; i++) {
226 eal_args[i] = strdup(argv[i]);
227 if (strcmp(argv[i], "--") == 0)
230 eal_args[i++] = NULL; /* always finish with NULL */
232 /* allow reporting of any app args we know about too */
236 eal_app_args = calloc(argc - i + 1, sizeof(*eal_args));
237 if (eal_app_args == NULL)
240 for (j = 0; i < argc; j++, i++)
241 eal_app_args[j] = strdup(argv[i]);
242 eal_app_args[j] = NULL;
249 eal_option_device_add(enum rte_devtype type, const char *optarg)
251 struct device_option *devopt;
255 optlen = strlen(optarg) + 1;
256 devopt = calloc(1, sizeof(*devopt) + optlen);
257 if (devopt == NULL) {
258 RTE_LOG(ERR, EAL, "Unable to allocate device option\n");
263 ret = strlcpy(devopt->arg, optarg, optlen);
265 RTE_LOG(ERR, EAL, "Unable to copy device option\n");
269 TAILQ_INSERT_TAIL(&devopt_list, devopt, next);
274 eal_option_device_parse(void)
276 struct device_option *devopt;
280 TAILQ_FOREACH_SAFE(devopt, &devopt_list, next, tmp) {
282 ret = rte_devargs_add(devopt->type, devopt->arg);
284 RTE_LOG(ERR, EAL, "Unable to parse device '%s'\n",
287 TAILQ_REMOVE(&devopt_list, devopt, next);
294 eal_get_hugefile_prefix(void)
296 const struct internal_config *internal_conf =
297 eal_get_internal_configuration();
299 if (internal_conf->hugefile_prefix != NULL)
300 return internal_conf->hugefile_prefix;
301 return HUGEFILE_PREFIX_DEFAULT;
305 eal_reset_internal_config(struct internal_config *internal_cfg)
309 internal_cfg->memory = 0;
310 internal_cfg->force_nrank = 0;
311 internal_cfg->force_nchannel = 0;
312 internal_cfg->hugefile_prefix = NULL;
313 internal_cfg->hugepage_dir = NULL;
314 internal_cfg->force_sockets = 0;
315 /* zero out the NUMA config */
316 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
317 internal_cfg->socket_mem[i] = 0;
318 internal_cfg->force_socket_limits = 0;
319 /* zero out the NUMA limits config */
320 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
321 internal_cfg->socket_limit[i] = 0;
322 /* zero out hugedir descriptors */
323 for (i = 0; i < MAX_HUGEPAGE_SIZES; i++) {
324 memset(&internal_cfg->hugepage_info[i], 0,
325 sizeof(internal_cfg->hugepage_info[0]));
326 internal_cfg->hugepage_info[i].lock_descriptor = -1;
328 internal_cfg->base_virtaddr = 0;
331 internal_cfg->syslog_facility = LOG_DAEMON;
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));
339 #ifdef RTE_LIBEAL_USE_HPET
340 internal_cfg->no_hpet = 0;
342 internal_cfg->no_hpet = 1;
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;
355 eal_plugin_add(const char *path)
357 struct shared_driver *solib;
359 solib = malloc(sizeof(*solib));
361 RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
364 memset(solib, 0, sizeof(*solib));
365 strlcpy(solib->name, path, PATH_MAX);
366 TAILQ_INSERT_TAIL(&solib_list, solib, next);
371 #ifdef RTE_EXEC_ENV_WINDOWS
373 eal_plugins_init(void)
380 eal_plugindir_init(const char *path)
383 struct dirent *dent = NULL;
384 char sopath[PATH_MAX];
386 if (path == NULL || *path == '\0')
391 RTE_LOG(ERR, EAL, "failed to open directory %s: %s\n",
392 path, strerror(errno));
396 while ((dent = readdir(d)) != NULL) {
398 int nlen = strnlen(dent->d_name, sizeof(dent->d_name));
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)
406 snprintf(sopath, sizeof(sopath), "%s/%s", path, dent->d_name);
408 /* if a regular file, add to list to load */
409 if (!(stat(sopath, &sb) == 0 && S_ISREG(sb.st_mode)))
412 if (eal_plugin_add(sopath) == -1)
417 /* XXX this ignores failures from readdir() itself */
418 return (dent == NULL) ? 0 : -1;
422 verify_perms(const char *dirpath)
426 /* if not root, check down one level first */
427 if (strcmp(dirpath, "/") != 0) {
428 static __thread char last_dir_checked[PATH_MAX];
432 strlcpy(copy, dirpath, PATH_MAX);
434 if (strncmp(dir, last_dir_checked, PATH_MAX) != 0) {
435 if (verify_perms(dir) != 0)
437 strlcpy(last_dir_checked, dir, PATH_MAX);
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));
447 if (st.st_mode & S_IWOTH) {
449 "Error, directory path %s is world-writable and insecure\n",
458 eal_dlopen(const char *pathname)
461 char *realp = realpath(pathname, NULL);
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);
467 RTE_LOG(ERR, EAL, "%s\n", dlerror());
471 RTE_LOG(ERR, EAL, "Error with realpath for %s, %s\n",
472 pathname, strerror(errno));
475 if (strnlen(realp, PATH_MAX) == PATH_MAX) {
476 RTE_LOG(ERR, EAL, "Error, driver path greater than PATH_MAX\n");
480 /* do permissions checks */
481 if (verify_perms(realp) != 0)
484 retval = dlopen(realp, RTLD_NOW);
486 RTE_LOG(ERR, EAL, "%s\n", dlerror());
493 is_shared_build(void)
495 #define EAL_SO "librte_eal.so"
497 size_t len, minlen = strlen(EAL_SO);
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;
505 while (len >= minlen) {
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");
517 /* remove any version numbers off the end to retry */
519 if (soname[len] == '.') {
525 RTE_LOG(INFO, EAL, "Detected static linkage of DPDK\n");
530 eal_plugins_init(void)
532 struct shared_driver *solib = NULL;
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.)
540 if (is_shared_build() &&
541 *default_solib_dir != '\0' &&
542 stat(default_solib_dir, &sb) == 0 &&
544 eal_plugin_add(default_solib_dir);
546 TAILQ_FOREACH(solib, &solib_list, next) {
548 if (stat(solib->name, &sb) == 0 && S_ISDIR(sb.st_mode)) {
549 if (eal_plugindir_init(solib->name) == -1) {
551 "Cannot init plugin directory %s\n",
556 RTE_LOG(DEBUG, EAL, "open shared lib %s\n",
558 solib->lib_handle = eal_dlopen(solib->name);
559 if (solib->lib_handle == NULL)
569 * Parse the coremask given as argument (hexadecimal string) and fill
570 * the global configuration (core role and core count) with the parsed
573 static int xdigit2val(unsigned char c)
587 eal_parse_service_coremask(const char *coremask)
589 struct rte_config *cfg = rte_eal_get_configuration();
591 unsigned int count = 0;
594 uint32_t taken_lcore_count = 0;
596 if (coremask == NULL)
598 /* Remove all blank characters ahead and after .
599 * Remove 0x/0X if exists.
601 while (isblank(*coremask))
603 if (coremask[0] == '0' && ((coremask[1] == 'x')
604 || (coremask[1] == 'X')))
606 i = strlen(coremask);
607 while ((i > 0) && isblank(coremask[i - 1]))
613 for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
615 if (isxdigit(c) == 0) {
616 /* invalid characters */
620 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE;
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) {
628 "lcore %u is main lcore, cannot use as service core\n",
633 if (eal_cpu_detected(idx) == 0) {
635 "lcore %u unavailable\n", idx);
639 if (cfg->lcore_role[idx] == ROLE_RTE)
642 lcore_config[idx].core_role = ROLE_SERVICE;
649 if (coremask[i] != '0')
652 for (; idx < RTE_MAX_LCORE; idx++)
653 lcore_config[idx].core_index = -1;
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");
664 cfg->service_lcore_count = count;
669 eal_service_cores_parsed(void)
672 for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
673 if (lcore_config[idx].core_role == ROLE_SERVICE)
680 update_lcore_config(int *cores)
682 struct rte_config *cfg = rte_eal_get_configuration();
683 unsigned int count = 0;
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);
694 cfg->lcore_role[i] = ROLE_RTE;
697 cfg->lcore_role[i] = ROLE_OFF;
699 lcore_config[i].core_index = cores[i];
702 cfg->lcore_count = count;
707 eal_parse_coremask(const char *coremask, int *cores)
714 for (idx = 0; idx < RTE_MAX_LCORE; idx++)
718 /* Remove all blank characters ahead and after .
719 * Remove 0x/0X if exists.
721 while (isblank(*coremask))
723 if (coremask[0] == '0' && ((coremask[1] == 'x')
724 || (coremask[1] == 'X')))
726 i = strlen(coremask);
727 while ((i > 0) && isblank(coremask[i - 1]))
732 for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
734 if (isxdigit(c) == 0) {
735 /* invalid characters */
739 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++)
741 if ((1 << j) & val) {
748 if (coremask[i] != '0')
756 eal_parse_service_corelist(const char *corelist)
758 struct rte_config *cfg = rte_eal_get_configuration();
762 uint32_t min, max, idx;
763 uint32_t taken_lcore_count = 0;
765 if (corelist == NULL)
768 /* Remove all blank characters ahead and after */
769 while (isblank(*corelist))
771 i = strlen(corelist);
772 while ((i > 0) && isblank(corelist[i - 1]))
775 /* Get list of cores */
778 while (isblank(*corelist))
780 if (*corelist == '\0')
783 idx = strtoul(corelist, &end, 10);
784 if (errno || end == NULL)
786 if (idx >= RTE_MAX_LCORE)
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)
1521 if (eal_option_device_add(RTE_DEVTYPE_BLOCKED, optarg) < 0)
1529 if (eal_option_device_add(RTE_DEVTYPE_ALLOWED, optarg) < 0)
1535 int lcore_indexes[RTE_MAX_LCORE];
1537 if (eal_service_cores_parsed())
1538 RTE_LOG(WARNING, EAL,
1539 "Service cores parsed before dataplane cores. Please ensure -c is before -s or -S\n");
1540 if (eal_parse_coremask(optarg, lcore_indexes) < 0) {
1541 RTE_LOG(ERR, EAL, "invalid coremask syntax\n");
1544 if (update_lcore_config(lcore_indexes) < 0) {
1545 char *available = available_cores();
1548 "invalid coremask, please check specified cores are part of %s\n",
1555 RTE_LOG(ERR, EAL, "Option -c is ignored, because (%s) is set!\n",
1556 (core_parsed == LCORE_OPT_LST) ? "-l" :
1557 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1562 core_parsed = LCORE_OPT_MSK;
1567 int lcore_indexes[RTE_MAX_LCORE];
1569 if (eal_service_cores_parsed())
1570 RTE_LOG(WARNING, EAL,
1571 "Service cores parsed before dataplane cores. Please ensure -l is before -s or -S\n");
1573 if (eal_parse_corelist(optarg, lcore_indexes) < 0) {
1574 RTE_LOG(ERR, EAL, "invalid core list syntax\n");
1577 if (update_lcore_config(lcore_indexes) < 0) {
1578 char *available = available_cores();
1581 "invalid core list, please check specified cores are part of %s\n",
1588 RTE_LOG(ERR, EAL, "Option -l is ignored, because (%s) is set!\n",
1589 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1590 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1595 core_parsed = LCORE_OPT_LST;
1598 /* service coremask */
1600 if (eal_parse_service_coremask(optarg) < 0) {
1601 RTE_LOG(ERR, EAL, "invalid service coremask\n");
1605 /* service corelist */
1607 if (eal_parse_service_corelist(optarg) < 0) {
1608 RTE_LOG(ERR, EAL, "invalid service core list\n");
1612 /* size of memory */
1614 conf->memory = atoi(optarg);
1615 conf->memory *= 1024ULL;
1616 conf->memory *= 1024ULL;
1619 /* force number of channels */
1621 conf->force_nchannel = atoi(optarg);
1622 if (conf->force_nchannel == 0) {
1623 RTE_LOG(ERR, EAL, "invalid channel number\n");
1627 /* force number of ranks */
1629 conf->force_nrank = atoi(optarg);
1630 if (conf->force_nrank == 0 ||
1631 conf->force_nrank > 16) {
1632 RTE_LOG(ERR, EAL, "invalid rank number\n");
1636 /* force loading of external driver */
1638 if (eal_plugin_add(optarg) == -1)
1642 /* since message is explicitly requested by user, we
1643 * write message at highest log level so it can always
1645 * even if info or warning messages are disabled */
1646 RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
1650 case OPT_HUGE_UNLINK_NUM:
1651 conf->hugepage_unlink = 1;
1654 case OPT_NO_HUGE_NUM:
1655 conf->no_hugetlbfs = 1;
1656 /* no-huge is legacy mem */
1657 conf->legacy_mem = 1;
1660 case OPT_NO_PCI_NUM:
1664 case OPT_NO_HPET_NUM:
1668 case OPT_VMWARE_TSC_MAP_NUM:
1669 conf->vmware_tsc_map = 1;
1672 case OPT_NO_SHCONF_NUM:
1673 conf->no_shconf = 1;
1676 case OPT_IN_MEMORY_NUM:
1677 conf->in_memory = 1;
1678 /* in-memory is a superset of noshconf and huge-unlink */
1679 conf->no_shconf = 1;
1680 conf->hugepage_unlink = 1;
1683 case OPT_PROC_TYPE_NUM:
1684 conf->process_type = eal_parse_proc_type(optarg);
1687 case OPT_MAIN_LCORE_NUM:
1688 if (eal_parse_main_lcore(optarg) < 0) {
1689 RTE_LOG(ERR, EAL, "invalid parameter for --"
1690 OPT_MAIN_LCORE "\n");
1696 if (eal_option_device_add(RTE_DEVTYPE_VIRTUAL,
1702 #ifndef RTE_EXEC_ENV_WINDOWS
1703 case OPT_SYSLOG_NUM:
1704 if (eal_parse_syslog(optarg, conf) < 0) {
1705 RTE_LOG(ERR, EAL, "invalid parameters for --"
1712 case OPT_LOG_LEVEL_NUM: {
1713 if (eal_parse_log_level(optarg) < 0) {
1715 "invalid parameters for --"
1716 OPT_LOG_LEVEL "\n");
1722 #ifndef RTE_EXEC_ENV_WINDOWS
1723 case OPT_TRACE_NUM: {
1724 if (eal_trace_args_save(optarg) < 0) {
1725 RTE_LOG(ERR, EAL, "invalid parameters for --"
1732 case OPT_TRACE_DIR_NUM: {
1733 if (eal_trace_dir_args_save(optarg) < 0) {
1734 RTE_LOG(ERR, EAL, "invalid parameters for --"
1735 OPT_TRACE_DIR "\n");
1741 case OPT_TRACE_BUF_SIZE_NUM: {
1742 if (eal_trace_bufsz_args_save(optarg) < 0) {
1743 RTE_LOG(ERR, EAL, "invalid parameters for --"
1744 OPT_TRACE_BUF_SIZE "\n");
1750 case OPT_TRACE_MODE_NUM: {
1751 if (eal_trace_mode_args_save(optarg) < 0) {
1752 RTE_LOG(ERR, EAL, "invalid parameters for --"
1753 OPT_TRACE_MODE "\n");
1758 #endif /* !RTE_EXEC_ENV_WINDOWS */
1760 case OPT_LCORES_NUM:
1761 if (eal_parse_lcores(optarg) < 0) {
1762 RTE_LOG(ERR, EAL, "invalid parameter for --"
1768 RTE_LOG(ERR, EAL, "Option --lcore is ignored, because (%s) is set!\n",
1769 (core_parsed == LCORE_OPT_LST) ? "-l" :
1770 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1775 core_parsed = LCORE_OPT_MAP;
1777 case OPT_LEGACY_MEM_NUM:
1778 conf->legacy_mem = 1;
1780 case OPT_SINGLE_FILE_SEGMENTS_NUM:
1781 conf->single_file_segments = 1;
1783 case OPT_IOVA_MODE_NUM:
1784 if (eal_parse_iova_mode(optarg) < 0) {
1785 RTE_LOG(ERR, EAL, "invalid parameters for --"
1786 OPT_IOVA_MODE "\n");
1790 case OPT_BASE_VIRTADDR_NUM:
1791 if (eal_parse_base_virtaddr(optarg) < 0) {
1792 RTE_LOG(ERR, EAL, "invalid parameter for --"
1793 OPT_BASE_VIRTADDR "\n");
1797 case OPT_TELEMETRY_NUM:
1799 case OPT_NO_TELEMETRY_NUM:
1800 conf->no_telemetry = 1;
1802 case OPT_FORCE_MAX_SIMD_BITWIDTH_NUM:
1803 if (eal_parse_simd_bitwidth(optarg) < 0) {
1804 RTE_LOG(ERR, EAL, "invalid parameter for --"
1805 OPT_FORCE_MAX_SIMD_BITWIDTH "\n");
1810 /* don't know what to do, leave this to caller */
1820 "Options allow (-a) and block (-b) can't be used at the same time\n");
1825 eal_auto_detect_cores(struct rte_config *cfg)
1827 unsigned int lcore_id;
1828 unsigned int removed = 0;
1829 rte_cpuset_t affinity_set;
1831 if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1833 CPU_ZERO(&affinity_set);
1835 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1836 if (cfg->lcore_role[lcore_id] == ROLE_RTE &&
1837 !CPU_ISSET(lcore_id, &affinity_set)) {
1838 cfg->lcore_role[lcore_id] = ROLE_OFF;
1843 cfg->lcore_count -= removed;
1847 compute_ctrl_threads_cpuset(struct internal_config *internal_cfg)
1849 rte_cpuset_t *cpuset = &internal_cfg->ctrl_cpuset;
1850 rte_cpuset_t default_set;
1851 unsigned int lcore_id;
1853 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1854 if (rte_lcore_has_role(lcore_id, ROLE_OFF))
1856 RTE_CPU_OR(cpuset, cpuset, &lcore_config[lcore_id].cpuset);
1858 RTE_CPU_NOT(cpuset, cpuset);
1860 if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1862 CPU_ZERO(&default_set);
1864 RTE_CPU_AND(cpuset, cpuset, &default_set);
1866 /* if no remaining cpu, use main lcore cpu affinity */
1867 if (!CPU_COUNT(cpuset)) {
1868 memcpy(cpuset, &lcore_config[rte_get_main_lcore()].cpuset,
1874 eal_cleanup_config(struct internal_config *internal_cfg)
1876 if (internal_cfg->hugefile_prefix != NULL)
1877 free(internal_cfg->hugefile_prefix);
1878 if (internal_cfg->hugepage_dir != NULL)
1879 free(internal_cfg->hugepage_dir);
1880 if (internal_cfg->user_mbuf_pool_ops_name != NULL)
1881 free(internal_cfg->user_mbuf_pool_ops_name);
1887 eal_adjust_config(struct internal_config *internal_cfg)
1890 struct rte_config *cfg = rte_eal_get_configuration();
1891 struct internal_config *internal_conf =
1892 eal_get_internal_configuration();
1895 eal_auto_detect_cores(cfg);
1897 if (internal_conf->process_type == RTE_PROC_AUTO)
1898 internal_conf->process_type = eal_proc_type_detect();
1900 /* default main lcore is the first one */
1901 if (!main_lcore_parsed) {
1902 cfg->main_lcore = rte_get_next_lcore(-1, 0, 0);
1903 if (cfg->main_lcore >= RTE_MAX_LCORE)
1905 lcore_config[cfg->main_lcore].core_role = ROLE_RTE;
1908 compute_ctrl_threads_cpuset(internal_cfg);
1910 /* if no memory amounts were requested, this will result in 0 and
1911 * will be overridden later, right after eal_hugepage_info_init() */
1912 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
1913 internal_cfg->memory += internal_cfg->socket_mem[i];
1919 eal_check_common_options(struct internal_config *internal_cfg)
1921 struct rte_config *cfg = rte_eal_get_configuration();
1922 const struct internal_config *internal_conf =
1923 eal_get_internal_configuration();
1925 if (cfg->lcore_role[cfg->main_lcore] != ROLE_RTE) {
1926 RTE_LOG(ERR, EAL, "Main lcore is not enabled for DPDK\n");
1930 if (internal_cfg->process_type == RTE_PROC_INVALID) {
1931 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
1934 if (internal_cfg->hugefile_prefix != NULL &&
1935 strlen(internal_cfg->hugefile_prefix) < 1) {
1936 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_FILE_PREFIX " option\n");
1939 if (internal_cfg->hugepage_dir != NULL &&
1940 strlen(internal_cfg->hugepage_dir) < 1) {
1941 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_HUGE_DIR" option\n");
1944 if (internal_cfg->user_mbuf_pool_ops_name != NULL &&
1945 strlen(internal_cfg->user_mbuf_pool_ops_name) < 1) {
1946 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_MBUF_POOL_OPS_NAME" option\n");
1949 if (strchr(eal_get_hugefile_prefix(), '%') != NULL) {
1950 RTE_LOG(ERR, EAL, "Invalid char, '%%', in --"OPT_FILE_PREFIX" "
1954 if (mem_parsed && internal_cfg->force_sockets == 1) {
1955 RTE_LOG(ERR, EAL, "Options -m and --"OPT_SOCKET_MEM" cannot "
1956 "be specified at the same time\n");
1959 if (internal_cfg->no_hugetlbfs && internal_cfg->force_sockets == 1) {
1960 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_MEM" cannot "
1961 "be specified together with --"OPT_NO_HUGE"\n");
1964 if (internal_cfg->no_hugetlbfs && internal_cfg->hugepage_unlink &&
1965 !internal_cfg->in_memory) {
1966 RTE_LOG(ERR, EAL, "Option --"OPT_HUGE_UNLINK" cannot "
1967 "be specified together with --"OPT_NO_HUGE"\n");
1970 if (internal_conf->force_socket_limits && internal_conf->legacy_mem) {
1971 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_LIMIT
1972 " is only supported in non-legacy memory mode\n");
1974 if (internal_cfg->single_file_segments &&
1975 internal_cfg->hugepage_unlink &&
1976 !internal_cfg->in_memory) {
1977 RTE_LOG(ERR, EAL, "Option --"OPT_SINGLE_FILE_SEGMENTS" is "
1978 "not compatible with --"OPT_HUGE_UNLINK"\n");
1981 if (internal_cfg->legacy_mem &&
1982 internal_cfg->in_memory) {
1983 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
1984 "with --"OPT_IN_MEMORY"\n");
1987 if (internal_cfg->legacy_mem && internal_cfg->match_allocations) {
1988 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
1989 "with --"OPT_MATCH_ALLOCATIONS"\n");
1992 if (internal_cfg->no_hugetlbfs && internal_cfg->match_allocations) {
1993 RTE_LOG(ERR, EAL, "Option --"OPT_NO_HUGE" is not compatible "
1994 "with --"OPT_MATCH_ALLOCATIONS"\n");
1997 if (internal_cfg->legacy_mem && internal_cfg->memory == 0) {
1998 RTE_LOG(NOTICE, EAL, "Static memory layout is selected, "
1999 "amount of reserved memory can be adjusted with "
2000 "-m or --"OPT_SOCKET_MEM"\n");
2007 rte_vect_get_max_simd_bitwidth(void)
2009 const struct internal_config *internal_conf =
2010 eal_get_internal_configuration();
2011 return internal_conf->max_simd_bitwidth.bitwidth;
2015 rte_vect_set_max_simd_bitwidth(uint16_t bitwidth)
2017 struct internal_config *internal_conf =
2018 eal_get_internal_configuration();
2019 if (internal_conf->max_simd_bitwidth.forced) {
2020 RTE_LOG(NOTICE, EAL, "Cannot set max SIMD bitwidth - user runtime override enabled");
2024 if (bitwidth < RTE_VECT_SIMD_DISABLED || !rte_is_power_of_2(bitwidth)) {
2025 RTE_LOG(ERR, EAL, "Invalid bitwidth value!\n");
2028 internal_conf->max_simd_bitwidth.bitwidth = bitwidth;
2033 eal_common_usage(void)
2035 printf("[options]\n\n"
2036 "EAL common options:\n"
2037 " -c COREMASK Hexadecimal bitmask of cores to run on\n"
2038 " -l CORELIST List of cores to run on\n"
2039 " The argument format is <c1>[-c2][,c3[-c4],...]\n"
2040 " where c1, c2, etc are core indexes between 0 and %d\n"
2041 " --"OPT_LCORES" COREMAP Map lcore set to physical cpu set\n"
2042 " The argument format is\n"
2043 " '<lcores[@cpus]>[<,lcores[@cpus]>...]'\n"
2044 " lcores and cpus list are grouped by '(' and ')'\n"
2045 " Within the group, '-' is used for range separator,\n"
2046 " ',' is used for single number separator.\n"
2047 " '( )' can be omitted for single element group,\n"
2048 " '@' can be omitted if cpus and lcores have the same value\n"
2049 " -s SERVICE COREMASK Hexadecimal bitmask of cores to be used as service cores\n"
2050 " --"OPT_MAIN_LCORE" ID Core ID that is used as main\n"
2051 " --"OPT_MBUF_POOL_OPS_NAME" Pool ops name for mbuf to use\n"
2052 " -n CHANNELS Number of memory channels\n"
2053 " -m MB Memory to allocate (see also --"OPT_SOCKET_MEM")\n"
2054 " -r RANKS Force number of memory ranks (don't detect)\n"
2055 " -b, --block Add a device to the blocked list.\n"
2056 " Prevent EAL from using this device. The argument\n"
2057 " format for PCI devices is <domain:bus:devid.func>.\n"
2058 " -a, --allow Add a device to the allow list.\n"
2059 " Only use the specified devices. The argument format\n"
2060 " for PCI devices is <[domain:]bus:devid.func>.\n"
2061 " This option can be present several times.\n"
2062 " [NOTE: " OPT_DEV_ALLOW " cannot be used with "OPT_DEV_BLOCK" option]\n"
2063 " --"OPT_VDEV" Add a virtual device.\n"
2064 " The argument format is <driver><id>[,key=val,...]\n"
2065 " (ex: --vdev=net_pcap0,iface=eth2).\n"
2066 " --"OPT_IOVA_MODE" Set IOVA mode. 'pa' for IOVA_PA\n"
2067 " 'va' for IOVA_VA\n"
2068 " -d LIB.so|DIR Add a driver or driver directory\n"
2069 " (can be used multiple times)\n"
2070 " --"OPT_VMWARE_TSC_MAP" Use VMware TSC map instead of native RDTSC\n"
2071 " --"OPT_PROC_TYPE" Type of this process (primary|secondary|auto)\n"
2072 #ifndef RTE_EXEC_ENV_WINDOWS
2073 " --"OPT_SYSLOG" Set syslog facility\n"
2075 " --"OPT_LOG_LEVEL"=<level> Set global log level\n"
2076 " --"OPT_LOG_LEVEL"=<type-match>:<level>\n"
2077 " Set specific log level\n"
2078 " --"OPT_LOG_LEVEL"=help Show log types and levels\n"
2079 #ifndef RTE_EXEC_ENV_WINDOWS
2080 " --"OPT_TRACE"=<regex-match>\n"
2081 " Enable trace based on regular expression trace name.\n"
2082 " By default, the trace is disabled.\n"
2083 " User must specify this option to enable trace.\n"
2084 " --"OPT_TRACE_DIR"=<directory path>\n"
2085 " Specify trace directory for trace output.\n"
2086 " By default, trace output will created at\n"
2087 " $HOME directory and parameter must be\n"
2088 " specified once only.\n"
2089 " --"OPT_TRACE_BUF_SIZE"=<int>\n"
2090 " Specify maximum size of allocated memory\n"
2091 " for trace output for each thread. Valid\n"
2092 " unit can be either 'B|K|M' for 'Bytes',\n"
2093 " 'KBytes' and 'MBytes' respectively.\n"
2094 " Default is 1MB and parameter must be\n"
2095 " specified once only.\n"
2096 " --"OPT_TRACE_MODE"=<o[verwrite] | d[iscard]>\n"
2097 " Specify the mode of update of trace\n"
2098 " output file. Either update on a file can\n"
2099 " be wrapped or discarded when file size\n"
2100 " reaches its maximum limit.\n"
2101 " Default mode is 'overwrite' and parameter\n"
2102 " must be specified once only.\n"
2103 #endif /* !RTE_EXEC_ENV_WINDOWS */
2104 " -v Display version information on startup\n"
2105 " -h, --help This help\n"
2106 " --"OPT_IN_MEMORY" Operate entirely in memory. This will\n"
2107 " disable secondary process support\n"
2108 " --"OPT_BASE_VIRTADDR" Base virtual address\n"
2109 " --"OPT_TELEMETRY" Enable telemetry support (on by default)\n"
2110 " --"OPT_NO_TELEMETRY" Disable telemetry support\n"
2111 " --"OPT_FORCE_MAX_SIMD_BITWIDTH" Force the max SIMD bitwidth\n"
2112 "\nEAL options for DEBUG use only:\n"
2113 " --"OPT_HUGE_UNLINK" Unlink hugepage files after init\n"
2114 " --"OPT_NO_HUGE" Use malloc instead of hugetlbfs\n"
2115 " --"OPT_NO_PCI" Disable PCI\n"
2116 " --"OPT_NO_HPET" Disable HPET\n"
2117 " --"OPT_NO_SHCONF" No shared config (mmap'd files)\n"
2118 "\n", RTE_MAX_LCORE);