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"
44 #ifndef RTE_EXEC_ENV_WINDOWS
45 #include "eal_trace.h"
48 #define BITS_PER_HEX 4
49 #define LCORE_OPT_LST 1
50 #define LCORE_OPT_MSK 2
51 #define LCORE_OPT_MAP 3
58 "s:" /* service coremask */
62 "S:" /* service corelist */
63 "m:" /* memory size */
64 "n:" /* memory channels */
65 "r:" /* memory ranks */
67 "w:" /* pci-whitelist (deprecated) */
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_MASTER_LCORE, 1, NULL, OPT_MASTER_LCORE_NUM },
86 {OPT_MAIN_LCORE, 1, NULL, OPT_MAIN_LCORE_NUM },
87 {OPT_MBUF_POOL_OPS_NAME, 1, NULL, OPT_MBUF_POOL_OPS_NAME_NUM},
88 {OPT_NO_HPET, 0, NULL, OPT_NO_HPET_NUM },
89 {OPT_NO_HUGE, 0, NULL, OPT_NO_HUGE_NUM },
90 {OPT_NO_PCI, 0, NULL, OPT_NO_PCI_NUM },
91 {OPT_NO_SHCONF, 0, NULL, OPT_NO_SHCONF_NUM },
92 {OPT_IN_MEMORY, 0, NULL, OPT_IN_MEMORY_NUM },
93 {OPT_DEV_BLOCK, 1, NULL, OPT_DEV_BLOCK_NUM },
94 {OPT_DEV_ALLOW, 1, NULL, OPT_DEV_ALLOW_NUM },
95 {OPT_PROC_TYPE, 1, NULL, OPT_PROC_TYPE_NUM },
96 {OPT_SOCKET_MEM, 1, NULL, OPT_SOCKET_MEM_NUM },
97 {OPT_SOCKET_LIMIT, 1, NULL, OPT_SOCKET_LIMIT_NUM },
98 {OPT_SYSLOG, 1, NULL, OPT_SYSLOG_NUM },
99 {OPT_VDEV, 1, NULL, OPT_VDEV_NUM },
100 {OPT_VFIO_INTR, 1, NULL, OPT_VFIO_INTR_NUM },
101 {OPT_VFIO_VF_TOKEN, 1, NULL, OPT_VFIO_VF_TOKEN_NUM },
102 {OPT_VMWARE_TSC_MAP, 0, NULL, OPT_VMWARE_TSC_MAP_NUM },
103 {OPT_LEGACY_MEM, 0, NULL, OPT_LEGACY_MEM_NUM },
104 {OPT_SINGLE_FILE_SEGMENTS, 0, NULL, OPT_SINGLE_FILE_SEGMENTS_NUM},
105 {OPT_MATCH_ALLOCATIONS, 0, NULL, OPT_MATCH_ALLOCATIONS_NUM},
106 {OPT_TELEMETRY, 0, NULL, OPT_TELEMETRY_NUM },
107 {OPT_NO_TELEMETRY, 0, NULL, OPT_NO_TELEMETRY_NUM },
108 {OPT_FORCE_MAX_SIMD_BITWIDTH, 1, NULL, OPT_FORCE_MAX_SIMD_BITWIDTH_NUM},
110 /* legacy options that will be removed in future */
111 {OPT_PCI_BLACKLIST, 1, NULL, OPT_PCI_BLACKLIST_NUM },
112 {OPT_PCI_WHITELIST, 1, NULL, OPT_PCI_WHITELIST_NUM },
117 TAILQ_HEAD(shared_driver_list, shared_driver);
119 /* Definition for shared object drivers. */
120 struct shared_driver {
121 TAILQ_ENTRY(shared_driver) next;
127 /* List of external loadable drivers */
128 static struct shared_driver_list solib_list =
129 TAILQ_HEAD_INITIALIZER(solib_list);
131 #ifndef RTE_EXEC_ENV_WINDOWS
132 /* Default path of external loadable drivers */
133 static const char *default_solib_dir = RTE_EAL_PMD_PATH;
137 * Stringified version of solib path used by dpdk-pmdinfo.py
138 * Note: PLEASE DO NOT ALTER THIS without making a corresponding
139 * change to usertools/dpdk-pmdinfo.py
141 static const char dpdk_solib_path[] __rte_used =
142 "DPDK_PLUGIN_PATH=" RTE_EAL_PMD_PATH;
144 TAILQ_HEAD(device_option_list, device_option);
146 struct device_option {
147 TAILQ_ENTRY(device_option) next;
149 enum rte_devtype type;
153 static struct device_option_list devopt_list =
154 TAILQ_HEAD_INITIALIZER(devopt_list);
156 static int main_lcore_parsed;
157 static int mem_parsed;
158 static int core_parsed;
160 /* Allow the application to print its usage message too if set */
161 static rte_usage_hook_t rte_application_usage_hook;
163 /* Returns rte_usage_hook_t */
165 eal_get_application_usage_hook(void)
167 return rte_application_usage_hook;
170 /* Set a per-application usage message */
172 rte_set_application_usage_hook(rte_usage_hook_t usage_func)
174 rte_usage_hook_t old_func;
176 /* Will be NULL on the first call to denote the last usage routine. */
177 old_func = rte_application_usage_hook;
178 rte_application_usage_hook = usage_func;
183 #ifndef RTE_EXEC_ENV_WINDOWS
184 static char **eal_args;
185 static char **eal_app_args;
187 #define EAL_PARAM_REQ "/eal/params"
188 #define EAL_APP_PARAM_REQ "/eal/app_params"
190 /* callback handler for telemetry library to report out EAL flags */
192 handle_eal_info_request(const char *cmd, const char *params __rte_unused,
193 struct rte_tel_data *d)
199 if (strcmp(cmd, EAL_PARAM_REQ) == 0)
204 rte_tel_data_start_array(d, RTE_TEL_STRING_VAL);
205 if (args == NULL || args[0] == NULL)
208 for ( ; args[i] != NULL; i++)
209 used = rte_tel_data_add_array_string(d, args[i]);
214 eal_save_args(int argc, char **argv)
218 rte_telemetry_register_cmd(EAL_PARAM_REQ, handle_eal_info_request,
219 "Returns EAL commandline parameters used. Takes no parameters");
220 rte_telemetry_register_cmd(EAL_APP_PARAM_REQ, handle_eal_info_request,
221 "Returns app commandline parameters used. Takes no parameters");
223 /* clone argv to report out later. We overprovision, but
224 * this does not waste huge amounts of memory
226 eal_args = calloc(argc + 1, sizeof(*eal_args));
227 if (eal_args == NULL)
230 for (i = 0; i < argc; i++) {
231 eal_args[i] = strdup(argv[i]);
232 if (strcmp(argv[i], "--") == 0)
235 eal_args[i++] = NULL; /* always finish with NULL */
237 /* allow reporting of any app args we know about too */
241 eal_app_args = calloc(argc - i + 1, sizeof(*eal_args));
242 if (eal_app_args == NULL)
245 for (j = 0; i < argc; j++, i++)
246 eal_app_args[j] = strdup(argv[i]);
247 eal_app_args[j] = NULL;
254 eal_option_device_add(enum rte_devtype type, const char *optarg)
256 struct device_option *devopt;
260 optlen = strlen(optarg) + 1;
261 devopt = calloc(1, sizeof(*devopt) + optlen);
262 if (devopt == NULL) {
263 RTE_LOG(ERR, EAL, "Unable to allocate device option\n");
268 ret = strlcpy(devopt->arg, optarg, optlen);
270 RTE_LOG(ERR, EAL, "Unable to copy device option\n");
274 TAILQ_INSERT_TAIL(&devopt_list, devopt, next);
279 eal_option_device_parse(void)
281 struct device_option *devopt;
285 TAILQ_FOREACH_SAFE(devopt, &devopt_list, next, tmp) {
287 ret = rte_devargs_add(devopt->type, devopt->arg);
289 RTE_LOG(ERR, EAL, "Unable to parse device '%s'\n",
292 TAILQ_REMOVE(&devopt_list, devopt, next);
299 eal_get_hugefile_prefix(void)
301 const struct internal_config *internal_conf =
302 eal_get_internal_configuration();
304 if (internal_conf->hugefile_prefix != NULL)
305 return internal_conf->hugefile_prefix;
306 return HUGEFILE_PREFIX_DEFAULT;
310 eal_reset_internal_config(struct internal_config *internal_cfg)
314 internal_cfg->memory = 0;
315 internal_cfg->force_nrank = 0;
316 internal_cfg->force_nchannel = 0;
317 internal_cfg->hugefile_prefix = NULL;
318 internal_cfg->hugepage_dir = NULL;
319 internal_cfg->force_sockets = 0;
320 /* zero out the NUMA config */
321 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
322 internal_cfg->socket_mem[i] = 0;
323 internal_cfg->force_socket_limits = 0;
324 /* zero out the NUMA limits config */
325 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
326 internal_cfg->socket_limit[i] = 0;
327 /* zero out hugedir descriptors */
328 for (i = 0; i < MAX_HUGEPAGE_SIZES; i++) {
329 memset(&internal_cfg->hugepage_info[i], 0,
330 sizeof(internal_cfg->hugepage_info[0]));
331 internal_cfg->hugepage_info[i].lock_descriptor = -1;
333 internal_cfg->base_virtaddr = 0;
336 internal_cfg->syslog_facility = LOG_DAEMON;
339 /* if set to NONE, interrupt mode is determined automatically */
340 internal_cfg->vfio_intr_mode = RTE_INTR_MODE_NONE;
341 memset(internal_cfg->vfio_vf_token, 0,
342 sizeof(internal_cfg->vfio_vf_token));
344 #ifdef RTE_LIBEAL_USE_HPET
345 internal_cfg->no_hpet = 0;
347 internal_cfg->no_hpet = 1;
349 internal_cfg->vmware_tsc_map = 0;
350 internal_cfg->create_uio_dev = 0;
351 internal_cfg->iova_mode = RTE_IOVA_DC;
352 internal_cfg->user_mbuf_pool_ops_name = NULL;
353 CPU_ZERO(&internal_cfg->ctrl_cpuset);
354 internal_cfg->init_complete = 0;
355 internal_cfg->max_simd_bitwidth.bitwidth = RTE_VECT_DEFAULT_SIMD_BITWIDTH;
356 internal_cfg->max_simd_bitwidth.forced = 0;
360 eal_plugin_add(const char *path)
362 struct shared_driver *solib;
364 solib = malloc(sizeof(*solib));
366 RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
369 memset(solib, 0, sizeof(*solib));
370 strlcpy(solib->name, path, PATH_MAX);
371 TAILQ_INSERT_TAIL(&solib_list, solib, next);
376 #ifdef RTE_EXEC_ENV_WINDOWS
378 eal_plugins_init(void)
385 eal_plugindir_init(const char *path)
388 struct dirent *dent = NULL;
389 char sopath[PATH_MAX];
391 if (path == NULL || *path == '\0')
396 RTE_LOG(ERR, EAL, "failed to open directory %s: %s\n",
397 path, strerror(errno));
401 while ((dent = readdir(d)) != NULL) {
403 int nlen = strnlen(dent->d_name, sizeof(dent->d_name));
405 /* check if name ends in .so or .so.ABI_VERSION */
406 if (strcmp(&dent->d_name[nlen - 3], ".so") != 0 &&
407 strcmp(&dent->d_name[nlen - 4 - strlen(ABI_VERSION)],
408 ".so."ABI_VERSION) != 0)
411 snprintf(sopath, sizeof(sopath), "%s/%s", path, dent->d_name);
413 /* if a regular file, add to list to load */
414 if (!(stat(sopath, &sb) == 0 && S_ISREG(sb.st_mode)))
417 if (eal_plugin_add(sopath) == -1)
422 /* XXX this ignores failures from readdir() itself */
423 return (dent == NULL) ? 0 : -1;
427 verify_perms(const char *dirpath)
431 /* if not root, check down one level first */
432 if (strcmp(dirpath, "/") != 0) {
433 static __thread char last_dir_checked[PATH_MAX];
437 strlcpy(copy, dirpath, PATH_MAX);
439 if (strncmp(dir, last_dir_checked, PATH_MAX) != 0) {
440 if (verify_perms(dir) != 0)
442 strlcpy(last_dir_checked, dir, PATH_MAX);
446 /* call stat to check for permissions and ensure not world writable */
447 if (stat(dirpath, &st) != 0) {
448 RTE_LOG(ERR, EAL, "Error with stat on %s, %s\n",
449 dirpath, strerror(errno));
452 if (st.st_mode & S_IWOTH) {
454 "Error, directory path %s is world-writable and insecure\n",
463 eal_dlopen(const char *pathname)
466 char *realp = realpath(pathname, NULL);
468 if (realp == NULL && errno == ENOENT) {
469 /* not a full or relative path, try a load from system dirs */
470 retval = dlopen(pathname, RTLD_NOW);
472 RTE_LOG(ERR, EAL, "%s\n", dlerror());
476 RTE_LOG(ERR, EAL, "Error with realpath for %s, %s\n",
477 pathname, strerror(errno));
480 if (strnlen(realp, PATH_MAX) == PATH_MAX) {
481 RTE_LOG(ERR, EAL, "Error, driver path greater than PATH_MAX\n");
485 /* do permissions checks */
486 if (verify_perms(realp) != 0)
489 retval = dlopen(realp, RTLD_NOW);
491 RTE_LOG(ERR, EAL, "%s\n", dlerror());
498 is_shared_build(void)
500 #define EAL_SO "librte_eal.so"
502 size_t len, minlen = strlen(EAL_SO);
504 len = strlcpy(soname, EAL_SO"."ABI_VERSION, sizeof(soname));
505 if (len > sizeof(soname)) {
506 RTE_LOG(ERR, EAL, "Shared lib name too long in shared build check\n");
507 len = sizeof(soname) - 1;
510 while (len >= minlen) {
511 /* check if we have this .so loaded, if so - shared build */
512 RTE_LOG(DEBUG, EAL, "Checking presence of .so '%s'\n", soname);
513 if (dlopen(soname, RTLD_LAZY | RTLD_NOLOAD) != NULL) {
514 RTE_LOG(INFO, EAL, "Detected shared linkage of DPDK\n");
518 /* remove any version numbers off the end to retry */
520 if (soname[len] == '.') {
526 RTE_LOG(INFO, EAL, "Detected static linkage of DPDK\n");
531 eal_plugins_init(void)
533 struct shared_driver *solib = NULL;
536 /* If we are not statically linked, add default driver loading
537 * path if it exists as a directory.
538 * (Using dlopen with NOLOAD flag on EAL, will return NULL if the EAL
539 * shared library is not already loaded i.e. it's statically linked.)
541 if (is_shared_build() &&
542 *default_solib_dir != '\0' &&
543 stat(default_solib_dir, &sb) == 0 &&
545 eal_plugin_add(default_solib_dir);
547 TAILQ_FOREACH(solib, &solib_list, next) {
549 if (stat(solib->name, &sb) == 0 && S_ISDIR(sb.st_mode)) {
550 if (eal_plugindir_init(solib->name) == -1) {
552 "Cannot init plugin directory %s\n",
557 RTE_LOG(DEBUG, EAL, "open shared lib %s\n",
559 solib->lib_handle = eal_dlopen(solib->name);
560 if (solib->lib_handle == NULL)
570 * Parse the coremask given as argument (hexadecimal string) and fill
571 * the global configuration (core role and core count) with the parsed
574 static int xdigit2val(unsigned char c)
588 eal_parse_service_coremask(const char *coremask)
590 struct rte_config *cfg = rte_eal_get_configuration();
592 unsigned int count = 0;
595 uint32_t taken_lcore_count = 0;
597 if (coremask == NULL)
599 /* Remove all blank characters ahead and after .
600 * Remove 0x/0X if exists.
602 while (isblank(*coremask))
604 if (coremask[0] == '0' && ((coremask[1] == 'x')
605 || (coremask[1] == 'X')))
607 i = strlen(coremask);
608 while ((i > 0) && isblank(coremask[i - 1]))
614 for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
616 if (isxdigit(c) == 0) {
617 /* invalid characters */
621 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE;
623 if ((1 << j) & val) {
624 /* handle main lcore already parsed */
625 uint32_t lcore = idx;
626 if (main_lcore_parsed &&
627 cfg->main_lcore == lcore) {
629 "lcore %u is main lcore, cannot use as service core\n",
634 if (eal_cpu_detected(idx) == 0) {
636 "lcore %u unavailable\n", idx);
640 if (cfg->lcore_role[idx] == ROLE_RTE)
643 lcore_config[idx].core_role = ROLE_SERVICE;
650 if (coremask[i] != '0')
653 for (; idx < RTE_MAX_LCORE; idx++)
654 lcore_config[idx].core_index = -1;
659 if (core_parsed && taken_lcore_count != count) {
660 RTE_LOG(WARNING, EAL,
661 "Not all service cores are in the coremask. "
662 "Please ensure -c or -l includes service cores\n");
665 cfg->service_lcore_count = count;
670 eal_service_cores_parsed(void)
673 for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
674 if (lcore_config[idx].core_role == ROLE_SERVICE)
681 update_lcore_config(int *cores)
683 struct rte_config *cfg = rte_eal_get_configuration();
684 unsigned int count = 0;
688 for (i = 0; i < RTE_MAX_LCORE; i++) {
689 if (cores[i] != -1) {
690 if (eal_cpu_detected(i) == 0) {
691 RTE_LOG(ERR, EAL, "lcore %u unavailable\n", i);
695 cfg->lcore_role[i] = ROLE_RTE;
698 cfg->lcore_role[i] = ROLE_OFF;
700 lcore_config[i].core_index = cores[i];
703 cfg->lcore_count = count;
708 eal_parse_coremask(const char *coremask, int *cores)
715 for (idx = 0; idx < RTE_MAX_LCORE; idx++)
719 /* Remove all blank characters ahead and after .
720 * Remove 0x/0X if exists.
722 while (isblank(*coremask))
724 if (coremask[0] == '0' && ((coremask[1] == 'x')
725 || (coremask[1] == 'X')))
727 i = strlen(coremask);
728 while ((i > 0) && isblank(coremask[i - 1]))
733 for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
735 if (isxdigit(c) == 0) {
736 /* invalid characters */
740 for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE; j++, idx++)
742 if ((1 << j) & val) {
749 if (coremask[i] != '0')
757 eal_parse_service_corelist(const char *corelist)
759 struct rte_config *cfg = rte_eal_get_configuration();
764 uint32_t taken_lcore_count = 0;
766 if (corelist == NULL)
769 /* Remove all blank characters ahead and after */
770 while (isblank(*corelist))
772 i = strlen(corelist);
773 while ((i > 0) && isblank(corelist[i - 1]))
776 /* Get list of cores */
779 while (isblank(*corelist))
781 if (*corelist == '\0')
784 idx = strtoul(corelist, &end, 10);
785 if (errno || end == NULL)
787 while (isblank(*end))
791 } else if ((*end == ',') || (*end == '\0')) {
793 if (min == RTE_MAX_LCORE)
795 for (idx = min; idx <= max; idx++) {
796 if (cfg->lcore_role[idx] != ROLE_SERVICE) {
797 /* handle main lcore already parsed */
798 uint32_t lcore = idx;
799 if (cfg->main_lcore == lcore &&
802 "Error: lcore %u is main lcore, cannot use as service core\n",
806 if (cfg->lcore_role[idx] == ROLE_RTE)
809 lcore_config[idx].core_role =
818 } while (*end != '\0');
823 if (core_parsed && taken_lcore_count != count) {
824 RTE_LOG(WARNING, EAL,
825 "Not all service cores were in the coremask. "
826 "Please ensure -c or -l includes service cores\n");
833 eal_parse_corelist(const char *corelist, int *cores)
840 for (idx = 0; idx < RTE_MAX_LCORE; idx++)
843 /* Remove all blank characters ahead */
844 while (isblank(*corelist))
847 /* Get list of cores */
850 while (isblank(*corelist))
852 if (*corelist == '\0')
855 idx = strtol(corelist, &end, 10);
856 if (errno || end == NULL)
858 if (idx < 0 || idx >= RTE_MAX_LCORE)
860 while (isblank(*end))
864 } else if ((*end == ',') || (*end == '\0')) {
866 if (min == RTE_MAX_LCORE)
868 for (idx = min; idx <= max; idx++) {
869 if (cores[idx] == -1) {
878 } while (*end != '\0');
885 /* Changes the lcore id of the main thread */
887 eal_parse_main_lcore(const char *arg)
890 struct rte_config *cfg = rte_eal_get_configuration();
893 cfg->main_lcore = (uint32_t) strtol(arg, &parsing_end, 0);
894 if (errno || parsing_end[0] != 0)
896 if (cfg->main_lcore >= RTE_MAX_LCORE)
898 main_lcore_parsed = 1;
900 /* ensure main core is not used as service core */
901 if (lcore_config[cfg->main_lcore].core_role == ROLE_SERVICE) {
903 "Error: Main lcore is used as a service core\n");
911 * Parse elem, the elem could be single number/range or '(' ')' group
912 * 1) A single number elem, it's just a simple digit. e.g. 9
913 * 2) A single range elem, two digits with a '-' between. e.g. 2-6
914 * 3) A group elem, combines multiple 1) or 2) with '( )'. e.g (0,2-4,6)
915 * Within group elem, '-' used for a range separator;
916 * ',' used for a single number.
919 eal_parse_set(const char *input, rte_cpuset_t *set)
922 const char *str = input;
928 while (isblank(*str))
931 /* only digit or left bracket is qualify for start point */
932 if ((!isdigit(*str) && *str != '(') || *str == '\0')
935 /* process single number or single range of number */
938 idx = strtoul(str, &end, 10);
939 if (errno || end == NULL || idx >= CPU_SETSIZE)
942 while (isblank(*end))
948 /* process single <number>-<number> */
950 while (isblank(*end))
956 idx = strtoul(end, &end, 10);
957 if (errno || end == NULL || idx >= CPU_SETSIZE)
960 while (isblank(*end))
962 if (*end != ',' && *end != '\0')
966 if (*end != ',' && *end != '\0' &&
970 for (idx = RTE_MIN(min, max);
971 idx <= RTE_MAX(min, max); idx++)
978 /* process set within bracket */
980 while (isblank(*str))
988 /* go ahead to the first digit */
989 while (isblank(*str))
994 /* get the digit value */
996 idx = strtoul(str, &end, 10);
997 if (errno || end == NULL || idx >= CPU_SETSIZE)
1000 /* go ahead to separator '-',',' and ')' */
1001 while (isblank(*end))
1004 if (min == RTE_MAX_LCORE)
1006 else /* avoid continuous '-' */
1008 } else if ((*end == ',') || (*end == ')')) {
1010 if (min == RTE_MAX_LCORE)
1012 for (idx = RTE_MIN(min, max);
1013 idx <= RTE_MAX(min, max); idx++)
1016 min = RTE_MAX_LCORE;
1021 } while (*end != '\0' && *end != ')');
1024 * to avoid failure that tail blank makes end character check fail
1025 * in eal_parse_lcores( )
1027 while (isblank(*str))
1034 check_cpuset(rte_cpuset_t *set)
1038 for (idx = 0; idx < CPU_SETSIZE; idx++) {
1039 if (!CPU_ISSET(idx, set))
1042 if (eal_cpu_detected(idx) == 0) {
1043 RTE_LOG(ERR, EAL, "core %u "
1044 "unavailable\n", idx);
1052 * The format pattern: --lcores='<lcores[@cpus]>[<,lcores[@cpus]>...]'
1053 * lcores, cpus could be a single digit/range or a group.
1054 * '(' and ')' are necessary if it's a group.
1055 * If not supply '@cpus', the value of cpus uses the same as lcores.
1056 * e.g. '1,2@(5-7),(3-5)@(0,2),(0,6),7-8' means start 9 EAL thread as below
1057 * lcore 0 runs on cpuset 0x41 (cpu 0,6)
1058 * lcore 1 runs on cpuset 0x2 (cpu 1)
1059 * lcore 2 runs on cpuset 0xe0 (cpu 5,6,7)
1060 * lcore 3,4,5 runs on cpuset 0x5 (cpu 0,2)
1061 * lcore 6 runs on cpuset 0x41 (cpu 0,6)
1062 * lcore 7 runs on cpuset 0x80 (cpu 7)
1063 * lcore 8 runs on cpuset 0x100 (cpu 8)
1066 eal_parse_lcores(const char *lcores)
1068 struct rte_config *cfg = rte_eal_get_configuration();
1069 rte_cpuset_t lcore_set;
1070 unsigned int set_count;
1073 const char *lcore_start = NULL;
1074 const char *end = NULL;
1076 rte_cpuset_t cpuset;
1083 /* Remove all blank characters ahead and after */
1084 while (isblank(*lcores))
1089 /* Reset lcore config */
1090 for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
1091 cfg->lcore_role[idx] = ROLE_OFF;
1092 lcore_config[idx].core_index = -1;
1093 CPU_ZERO(&lcore_config[idx].cpuset);
1096 /* Get list of cores */
1098 while (isblank(*lcores))
1100 if (*lcores == '\0')
1105 /* record lcore_set start point */
1106 lcore_start = lcores;
1108 /* go across a complete bracket */
1109 if (*lcore_start == '(') {
1110 lcores += strcspn(lcores, ")");
1111 if (*lcores++ == '\0')
1115 /* scan the separator '@', ','(next) or '\0'(finish) */
1116 lcores += strcspn(lcores, "@,");
1118 if (*lcores == '@') {
1119 /* explicit assign cpuset and update the end cursor */
1120 offset = eal_parse_set(lcores + 1, &cpuset);
1123 end = lcores + 1 + offset;
1124 } else { /* ',' or '\0' */
1125 /* haven't given cpuset, current loop done */
1128 /* go back to check <number>-<number> */
1129 offset = strcspn(lcore_start, "(-");
1130 if (offset < (end - lcore_start) &&
1131 *(lcore_start + offset) != '(')
1135 if (*end != ',' && *end != '\0')
1138 /* parse lcore_set from start point */
1139 if (eal_parse_set(lcore_start, &lcore_set) < 0)
1142 /* without '@', by default using lcore_set as cpuset */
1144 rte_memcpy(&cpuset, &lcore_set, sizeof(cpuset));
1146 set_count = CPU_COUNT(&lcore_set);
1147 /* start to update lcore_set */
1148 for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
1149 if (!CPU_ISSET(idx, &lcore_set))
1153 if (cfg->lcore_role[idx] != ROLE_RTE) {
1154 lcore_config[idx].core_index = count;
1155 cfg->lcore_role[idx] = ROLE_RTE;
1161 CPU_SET(idx, &cpuset);
1164 if (check_cpuset(&cpuset) < 0)
1166 rte_memcpy(&lcore_config[idx].cpuset, &cpuset,
1167 sizeof(rte_cpuset_t));
1170 /* some cores from the lcore_set can't be handled by EAL */
1175 } while (*end != '\0');
1180 cfg->lcore_count = count;
1188 #ifndef RTE_EXEC_ENV_WINDOWS
1190 eal_parse_syslog(const char *facility, struct internal_config *conf)
1193 static const struct {
1197 { "auth", LOG_AUTH },
1198 { "cron", LOG_CRON },
1199 { "daemon", LOG_DAEMON },
1201 { "kern", LOG_KERN },
1203 { "mail", LOG_MAIL },
1204 { "news", LOG_NEWS },
1205 { "syslog", LOG_SYSLOG },
1206 { "user", LOG_USER },
1207 { "uucp", LOG_UUCP },
1208 { "local0", LOG_LOCAL0 },
1209 { "local1", LOG_LOCAL1 },
1210 { "local2", LOG_LOCAL2 },
1211 { "local3", LOG_LOCAL3 },
1212 { "local4", LOG_LOCAL4 },
1213 { "local5", LOG_LOCAL5 },
1214 { "local6", LOG_LOCAL6 },
1215 { "local7", LOG_LOCAL7 },
1219 for (i = 0; map[i].name; i++) {
1220 if (!strcmp(facility, map[i].name)) {
1221 conf->syslog_facility = map[i].value;
1230 eal_parse_log_priority(const char *level)
1232 static const char * const levels[] = {
1233 [RTE_LOG_EMERG] = "emergency",
1234 [RTE_LOG_ALERT] = "alert",
1235 [RTE_LOG_CRIT] = "critical",
1236 [RTE_LOG_ERR] = "error",
1237 [RTE_LOG_WARNING] = "warning",
1238 [RTE_LOG_NOTICE] = "notice",
1239 [RTE_LOG_INFO] = "info",
1240 [RTE_LOG_DEBUG] = "debug",
1242 size_t len = strlen(level);
1250 /* look for named values, skip 0 which is not a valid level */
1251 for (i = 1; i < RTE_DIM(levels); i++) {
1252 if (strncmp(levels[i], level, len) == 0)
1256 /* not a string, maybe it is numeric */
1258 tmp = strtoul(level, &end, 0);
1260 /* check for errors */
1261 if (errno != 0 || end == NULL || *end != '\0' ||
1269 eal_parse_log_level(const char *arg)
1271 const char *pattern = NULL;
1272 const char *regex = NULL;
1280 if ((level = strchr(str, ','))) {
1283 } else if ((level = strchr(str, ':'))) {
1290 priority = eal_parse_log_priority(level);
1292 fprintf(stderr, "invalid log priority: %s\n", level);
1297 if (rte_log_set_level_regexp(regex, priority) < 0) {
1298 fprintf(stderr, "cannot set log level %s,%d\n",
1302 if (rte_log_save_regexp(regex, priority) < 0)
1304 } else if (pattern) {
1305 if (rte_log_set_level_pattern(pattern, priority) < 0) {
1306 fprintf(stderr, "cannot set log level %s:%d\n",
1310 if (rte_log_save_pattern(pattern, priority) < 0)
1313 rte_log_set_global_level(priority);
1324 static enum rte_proc_type_t
1325 eal_parse_proc_type(const char *arg)
1327 if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
1328 return RTE_PROC_PRIMARY;
1329 if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
1330 return RTE_PROC_SECONDARY;
1331 if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
1332 return RTE_PROC_AUTO;
1334 return RTE_PROC_INVALID;
1338 eal_parse_iova_mode(const char *name)
1341 struct internal_config *internal_conf =
1342 eal_get_internal_configuration();
1347 if (!strcmp("pa", name))
1349 else if (!strcmp("va", name))
1354 internal_conf->iova_mode = mode;
1359 eal_parse_simd_bitwidth(const char *arg)
1362 unsigned long bitwidth;
1364 struct internal_config *internal_conf =
1365 eal_get_internal_configuration();
1367 if (arg == NULL || arg[0] == '\0')
1371 bitwidth = strtoul(arg, &end, 0);
1373 /* check for errors */
1374 if (errno != 0 || end == NULL || *end != '\0' || bitwidth > RTE_VECT_SIMD_MAX)
1378 bitwidth = (unsigned long) RTE_VECT_SIMD_MAX;
1379 ret = rte_vect_set_max_simd_bitwidth(bitwidth);
1382 internal_conf->max_simd_bitwidth.forced = 1;
1387 eal_parse_base_virtaddr(const char *arg)
1391 struct internal_config *internal_conf =
1392 eal_get_internal_configuration();
1395 addr = strtoull(arg, &end, 16);
1397 /* check for errors */
1398 if ((errno != 0) || (arg[0] == '\0') || end == NULL || (*end != '\0'))
1401 /* make sure we don't exceed 32-bit boundary on 32-bit target */
1403 if (addr >= UINTPTR_MAX)
1407 /* align the addr on 16M boundary, 16MB is the minimum huge page
1408 * size on IBM Power architecture. If the addr is aligned to 16MB,
1409 * it can align to 2MB for x86. So this alignment can also be used
1410 * on x86 and other architectures.
1412 internal_conf->base_virtaddr =
1413 RTE_PTR_ALIGN_CEIL((uintptr_t)addr, (size_t)RTE_PGSIZE_16M);
1418 /* caller is responsible for freeing the returned string */
1420 available_cores(void)
1428 /* find the first available cpu */
1429 for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
1430 if (eal_cpu_detected(idx) == 0)
1434 if (idx >= RTE_MAX_LCORE)
1437 /* first sequence */
1438 if (asprintf(&str, "%d", idx) < 0)
1443 for (idx++ ; idx < RTE_MAX_LCORE; idx++) {
1444 if (eal_cpu_detected(idx) == 0)
1447 if (idx == previous + 1) {
1453 /* finish current sequence */
1455 if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
1464 if (asprintf(&tmp, "%s,%d", str, idx) < 0) {
1474 /* finish last sequence */
1476 if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
1488 eal_parse_common_option(int opt, const char *optarg,
1489 struct internal_config *conf)
1495 case OPT_PCI_BLACKLIST_NUM:
1497 "Option --pci-blacklist is deprecated, use -b, --block instead\n");
1502 if (eal_option_device_add(RTE_DEVTYPE_BLOCKED, optarg) < 0)
1509 "Option -w, --pci-whitelist is deprecated, use -a, --allow option instead\n");
1514 if (eal_option_device_add(RTE_DEVTYPE_ALLOWED, optarg) < 0)
1520 int lcore_indexes[RTE_MAX_LCORE];
1522 if (eal_service_cores_parsed())
1523 RTE_LOG(WARNING, EAL,
1524 "Service cores parsed before dataplane cores. Please ensure -c is before -s or -S\n");
1525 if (eal_parse_coremask(optarg, lcore_indexes) < 0) {
1526 RTE_LOG(ERR, EAL, "invalid coremask syntax\n");
1529 if (update_lcore_config(lcore_indexes) < 0) {
1530 char *available = available_cores();
1533 "invalid coremask, please check specified cores are part of %s\n",
1540 RTE_LOG(ERR, EAL, "Option -c is ignored, because (%s) is set!\n",
1541 (core_parsed == LCORE_OPT_LST) ? "-l" :
1542 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1547 core_parsed = LCORE_OPT_MSK;
1552 int lcore_indexes[RTE_MAX_LCORE];
1554 if (eal_service_cores_parsed())
1555 RTE_LOG(WARNING, EAL,
1556 "Service cores parsed before dataplane cores. Please ensure -l is before -s or -S\n");
1558 if (eal_parse_corelist(optarg, lcore_indexes) < 0) {
1559 RTE_LOG(ERR, EAL, "invalid core list syntax\n");
1562 if (update_lcore_config(lcore_indexes) < 0) {
1563 char *available = available_cores();
1566 "invalid core list, please check specified cores are part of %s\n",
1573 RTE_LOG(ERR, EAL, "Option -l is ignored, because (%s) is set!\n",
1574 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1575 (core_parsed == LCORE_OPT_MAP) ? "--lcore" :
1580 core_parsed = LCORE_OPT_LST;
1583 /* service coremask */
1585 if (eal_parse_service_coremask(optarg) < 0) {
1586 RTE_LOG(ERR, EAL, "invalid service coremask\n");
1590 /* service corelist */
1592 if (eal_parse_service_corelist(optarg) < 0) {
1593 RTE_LOG(ERR, EAL, "invalid service core list\n");
1597 /* size of memory */
1599 conf->memory = atoi(optarg);
1600 conf->memory *= 1024ULL;
1601 conf->memory *= 1024ULL;
1604 /* force number of channels */
1606 conf->force_nchannel = atoi(optarg);
1607 if (conf->force_nchannel == 0) {
1608 RTE_LOG(ERR, EAL, "invalid channel number\n");
1612 /* force number of ranks */
1614 conf->force_nrank = atoi(optarg);
1615 if (conf->force_nrank == 0 ||
1616 conf->force_nrank > 16) {
1617 RTE_LOG(ERR, EAL, "invalid rank number\n");
1621 /* force loading of external driver */
1623 if (eal_plugin_add(optarg) == -1)
1627 /* since message is explicitly requested by user, we
1628 * write message at highest log level so it can always
1630 * even if info or warning messages are disabled */
1631 RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
1635 case OPT_HUGE_UNLINK_NUM:
1636 conf->hugepage_unlink = 1;
1639 case OPT_NO_HUGE_NUM:
1640 conf->no_hugetlbfs = 1;
1641 /* no-huge is legacy mem */
1642 conf->legacy_mem = 1;
1645 case OPT_NO_PCI_NUM:
1649 case OPT_NO_HPET_NUM:
1653 case OPT_VMWARE_TSC_MAP_NUM:
1654 conf->vmware_tsc_map = 1;
1657 case OPT_NO_SHCONF_NUM:
1658 conf->no_shconf = 1;
1661 case OPT_IN_MEMORY_NUM:
1662 conf->in_memory = 1;
1663 /* in-memory is a superset of noshconf and huge-unlink */
1664 conf->no_shconf = 1;
1665 conf->hugepage_unlink = 1;
1668 case OPT_PROC_TYPE_NUM:
1669 conf->process_type = eal_parse_proc_type(optarg);
1672 case OPT_MASTER_LCORE_NUM:
1674 "Option --" OPT_MASTER_LCORE
1675 " is deprecated use " OPT_MAIN_LCORE "\n");
1677 case OPT_MAIN_LCORE_NUM:
1678 if (eal_parse_main_lcore(optarg) < 0) {
1679 RTE_LOG(ERR, EAL, "invalid parameter for --"
1680 OPT_MAIN_LCORE "\n");
1686 if (eal_option_device_add(RTE_DEVTYPE_VIRTUAL,
1692 #ifndef RTE_EXEC_ENV_WINDOWS
1693 case OPT_SYSLOG_NUM:
1694 if (eal_parse_syslog(optarg, conf) < 0) {
1695 RTE_LOG(ERR, EAL, "invalid parameters for --"
1702 case OPT_LOG_LEVEL_NUM: {
1703 if (eal_parse_log_level(optarg) < 0) {
1705 "invalid parameters for --"
1706 OPT_LOG_LEVEL "\n");
1712 #ifndef RTE_EXEC_ENV_WINDOWS
1713 case OPT_TRACE_NUM: {
1714 if (eal_trace_args_save(optarg) < 0) {
1715 RTE_LOG(ERR, EAL, "invalid parameters for --"
1722 case OPT_TRACE_DIR_NUM: {
1723 if (eal_trace_dir_args_save(optarg) < 0) {
1724 RTE_LOG(ERR, EAL, "invalid parameters for --"
1725 OPT_TRACE_DIR "\n");
1731 case OPT_TRACE_BUF_SIZE_NUM: {
1732 if (eal_trace_bufsz_args_save(optarg) < 0) {
1733 RTE_LOG(ERR, EAL, "invalid parameters for --"
1734 OPT_TRACE_BUF_SIZE "\n");
1740 case OPT_TRACE_MODE_NUM: {
1741 if (eal_trace_mode_args_save(optarg) < 0) {
1742 RTE_LOG(ERR, EAL, "invalid parameters for --"
1743 OPT_TRACE_MODE "\n");
1748 #endif /* !RTE_EXEC_ENV_WINDOWS */
1750 case OPT_LCORES_NUM:
1751 if (eal_parse_lcores(optarg) < 0) {
1752 RTE_LOG(ERR, EAL, "invalid parameter for --"
1758 RTE_LOG(ERR, EAL, "Option --lcore is ignored, because (%s) is set!\n",
1759 (core_parsed == LCORE_OPT_LST) ? "-l" :
1760 (core_parsed == LCORE_OPT_MSK) ? "-c" :
1765 core_parsed = LCORE_OPT_MAP;
1767 case OPT_LEGACY_MEM_NUM:
1768 conf->legacy_mem = 1;
1770 case OPT_SINGLE_FILE_SEGMENTS_NUM:
1771 conf->single_file_segments = 1;
1773 case OPT_IOVA_MODE_NUM:
1774 if (eal_parse_iova_mode(optarg) < 0) {
1775 RTE_LOG(ERR, EAL, "invalid parameters for --"
1776 OPT_IOVA_MODE "\n");
1780 case OPT_BASE_VIRTADDR_NUM:
1781 if (eal_parse_base_virtaddr(optarg) < 0) {
1782 RTE_LOG(ERR, EAL, "invalid parameter for --"
1783 OPT_BASE_VIRTADDR "\n");
1787 case OPT_TELEMETRY_NUM:
1789 case OPT_NO_TELEMETRY_NUM:
1790 conf->no_telemetry = 1;
1792 case OPT_FORCE_MAX_SIMD_BITWIDTH_NUM:
1793 if (eal_parse_simd_bitwidth(optarg) < 0) {
1794 RTE_LOG(ERR, EAL, "invalid parameter for --"
1795 OPT_FORCE_MAX_SIMD_BITWIDTH "\n");
1800 /* don't know what to do, leave this to caller */
1810 "Options allow (-a) and block (-b) can't be used at the same time\n");
1815 eal_auto_detect_cores(struct rte_config *cfg)
1817 unsigned int lcore_id;
1818 unsigned int removed = 0;
1819 rte_cpuset_t affinity_set;
1821 if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1823 CPU_ZERO(&affinity_set);
1825 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1826 if (cfg->lcore_role[lcore_id] == ROLE_RTE &&
1827 !CPU_ISSET(lcore_id, &affinity_set)) {
1828 cfg->lcore_role[lcore_id] = ROLE_OFF;
1833 cfg->lcore_count -= removed;
1837 compute_ctrl_threads_cpuset(struct internal_config *internal_cfg)
1839 rte_cpuset_t *cpuset = &internal_cfg->ctrl_cpuset;
1840 rte_cpuset_t default_set;
1841 unsigned int lcore_id;
1843 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1844 if (rte_lcore_has_role(lcore_id, ROLE_OFF))
1846 RTE_CPU_OR(cpuset, cpuset, &lcore_config[lcore_id].cpuset);
1848 RTE_CPU_NOT(cpuset, cpuset);
1850 if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
1852 CPU_ZERO(&default_set);
1854 RTE_CPU_AND(cpuset, cpuset, &default_set);
1856 /* if no remaining cpu, use main lcore cpu affinity */
1857 if (!CPU_COUNT(cpuset)) {
1858 memcpy(cpuset, &lcore_config[rte_get_main_lcore()].cpuset,
1864 eal_cleanup_config(struct internal_config *internal_cfg)
1866 if (internal_cfg->hugefile_prefix != NULL)
1867 free(internal_cfg->hugefile_prefix);
1868 if (internal_cfg->hugepage_dir != NULL)
1869 free(internal_cfg->hugepage_dir);
1870 if (internal_cfg->user_mbuf_pool_ops_name != NULL)
1871 free(internal_cfg->user_mbuf_pool_ops_name);
1877 eal_adjust_config(struct internal_config *internal_cfg)
1880 struct rte_config *cfg = rte_eal_get_configuration();
1881 struct internal_config *internal_conf =
1882 eal_get_internal_configuration();
1885 eal_auto_detect_cores(cfg);
1887 if (internal_conf->process_type == RTE_PROC_AUTO)
1888 internal_conf->process_type = eal_proc_type_detect();
1890 /* default main lcore is the first one */
1891 if (!main_lcore_parsed) {
1892 cfg->main_lcore = rte_get_next_lcore(-1, 0, 0);
1893 if (cfg->main_lcore >= RTE_MAX_LCORE)
1895 lcore_config[cfg->main_lcore].core_role = ROLE_RTE;
1898 compute_ctrl_threads_cpuset(internal_cfg);
1900 /* if no memory amounts were requested, this will result in 0 and
1901 * will be overridden later, right after eal_hugepage_info_init() */
1902 for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
1903 internal_cfg->memory += internal_cfg->socket_mem[i];
1909 eal_check_common_options(struct internal_config *internal_cfg)
1911 struct rte_config *cfg = rte_eal_get_configuration();
1912 const struct internal_config *internal_conf =
1913 eal_get_internal_configuration();
1915 if (cfg->lcore_role[cfg->main_lcore] != ROLE_RTE) {
1916 RTE_LOG(ERR, EAL, "Main lcore is not enabled for DPDK\n");
1920 if (internal_cfg->process_type == RTE_PROC_INVALID) {
1921 RTE_LOG(ERR, EAL, "Invalid process type specified\n");
1924 if (internal_cfg->hugefile_prefix != NULL &&
1925 strlen(internal_cfg->hugefile_prefix) < 1) {
1926 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_FILE_PREFIX " option\n");
1929 if (internal_cfg->hugepage_dir != NULL &&
1930 strlen(internal_cfg->hugepage_dir) < 1) {
1931 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_HUGE_DIR" option\n");
1934 if (internal_cfg->user_mbuf_pool_ops_name != NULL &&
1935 strlen(internal_cfg->user_mbuf_pool_ops_name) < 1) {
1936 RTE_LOG(ERR, EAL, "Invalid length of --" OPT_MBUF_POOL_OPS_NAME" option\n");
1939 if (index(eal_get_hugefile_prefix(), '%') != NULL) {
1940 RTE_LOG(ERR, EAL, "Invalid char, '%%', in --"OPT_FILE_PREFIX" "
1944 if (mem_parsed && internal_cfg->force_sockets == 1) {
1945 RTE_LOG(ERR, EAL, "Options -m and --"OPT_SOCKET_MEM" cannot "
1946 "be specified at the same time\n");
1949 if (internal_cfg->no_hugetlbfs && internal_cfg->force_sockets == 1) {
1950 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_MEM" cannot "
1951 "be specified together with --"OPT_NO_HUGE"\n");
1954 if (internal_cfg->no_hugetlbfs && internal_cfg->hugepage_unlink &&
1955 !internal_cfg->in_memory) {
1956 RTE_LOG(ERR, EAL, "Option --"OPT_HUGE_UNLINK" cannot "
1957 "be specified together with --"OPT_NO_HUGE"\n");
1960 if (internal_conf->force_socket_limits && internal_conf->legacy_mem) {
1961 RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_LIMIT
1962 " is only supported in non-legacy memory mode\n");
1964 if (internal_cfg->single_file_segments &&
1965 internal_cfg->hugepage_unlink &&
1966 !internal_cfg->in_memory) {
1967 RTE_LOG(ERR, EAL, "Option --"OPT_SINGLE_FILE_SEGMENTS" is "
1968 "not compatible with --"OPT_HUGE_UNLINK"\n");
1971 if (internal_cfg->legacy_mem &&
1972 internal_cfg->in_memory) {
1973 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
1974 "with --"OPT_IN_MEMORY"\n");
1977 if (internal_cfg->legacy_mem && internal_cfg->match_allocations) {
1978 RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
1979 "with --"OPT_MATCH_ALLOCATIONS"\n");
1982 if (internal_cfg->no_hugetlbfs && internal_cfg->match_allocations) {
1983 RTE_LOG(ERR, EAL, "Option --"OPT_NO_HUGE" is not compatible "
1984 "with --"OPT_MATCH_ALLOCATIONS"\n");
1987 if (internal_cfg->legacy_mem && internal_cfg->memory == 0) {
1988 RTE_LOG(NOTICE, EAL, "Static memory layout is selected, "
1989 "amount of reserved memory can be adjusted with "
1990 "-m or --"OPT_SOCKET_MEM"\n");
1997 rte_vect_get_max_simd_bitwidth(void)
1999 const struct internal_config *internal_conf =
2000 eal_get_internal_configuration();
2001 return internal_conf->max_simd_bitwidth.bitwidth;
2005 rte_vect_set_max_simd_bitwidth(uint16_t bitwidth)
2007 struct internal_config *internal_conf =
2008 eal_get_internal_configuration();
2009 if (internal_conf->max_simd_bitwidth.forced) {
2010 RTE_LOG(NOTICE, EAL, "Cannot set max SIMD bitwidth - user runtime override enabled");
2014 if (bitwidth < RTE_VECT_SIMD_DISABLED || !rte_is_power_of_2(bitwidth)) {
2015 RTE_LOG(ERR, EAL, "Invalid bitwidth value!\n");
2018 internal_conf->max_simd_bitwidth.bitwidth = bitwidth;
2023 eal_common_usage(void)
2025 printf("[options]\n\n"
2026 "EAL common options:\n"
2027 " -c COREMASK Hexadecimal bitmask of cores to run on\n"
2028 " -l CORELIST List of cores to run on\n"
2029 " The argument format is <c1>[-c2][,c3[-c4],...]\n"
2030 " where c1, c2, etc are core indexes between 0 and %d\n"
2031 " --"OPT_LCORES" COREMAP Map lcore set to physical cpu set\n"
2032 " The argument format is\n"
2033 " '<lcores[@cpus]>[<,lcores[@cpus]>...]'\n"
2034 " lcores and cpus list are grouped by '(' and ')'\n"
2035 " Within the group, '-' is used for range separator,\n"
2036 " ',' is used for single number separator.\n"
2037 " '( )' can be omitted for single element group,\n"
2038 " '@' can be omitted if cpus and lcores have the same value\n"
2039 " -s SERVICE COREMASK Hexadecimal bitmask of cores to be used as service cores\n"
2040 " --"OPT_MAIN_LCORE" ID Core ID that is used as main\n"
2041 " --"OPT_MBUF_POOL_OPS_NAME" Pool ops name for mbuf to use\n"
2042 " -n CHANNELS Number of memory channels\n"
2043 " -m MB Memory to allocate (see also --"OPT_SOCKET_MEM")\n"
2044 " -r RANKS Force number of memory ranks (don't detect)\n"
2045 " -b, --block Add a device to the blocked list.\n"
2046 " Prevent EAL from using this device. The argument\n"
2047 " format for PCI devices is <domain:bus:devid.func>.\n"
2048 " -a, --allow Add a device to the allow list.\n"
2049 " Only use the specified devices. The argument format\n"
2050 " for PCI devices is <[domain:]bus:devid.func>.\n"
2051 " This option can be present several times.\n"
2052 " [NOTE: " OPT_DEV_ALLOW " cannot be used with "OPT_DEV_BLOCK" option]\n"
2053 " --"OPT_VDEV" Add a virtual device.\n"
2054 " The argument format is <driver><id>[,key=val,...]\n"
2055 " (ex: --vdev=net_pcap0,iface=eth2).\n"
2056 " --"OPT_IOVA_MODE" Set IOVA mode. 'pa' for IOVA_PA\n"
2057 " 'va' for IOVA_VA\n"
2058 " -d LIB.so|DIR Add a driver or driver directory\n"
2059 " (can be used multiple times)\n"
2060 " --"OPT_VMWARE_TSC_MAP" Use VMware TSC map instead of native RDTSC\n"
2061 " --"OPT_PROC_TYPE" Type of this process (primary|secondary|auto)\n"
2062 #ifndef RTE_EXEC_ENV_WINDOWS
2063 " --"OPT_SYSLOG" Set syslog facility\n"
2065 " --"OPT_LOG_LEVEL"=<int> Set global log level\n"
2066 " --"OPT_LOG_LEVEL"=<type-match>:<int>\n"
2067 " Set specific log level\n"
2068 #ifndef RTE_EXEC_ENV_WINDOWS
2069 " --"OPT_TRACE"=<regex-match>\n"
2070 " Enable trace based on regular expression trace name.\n"
2071 " By default, the trace is disabled.\n"
2072 " User must specify this option to enable trace.\n"
2073 " --"OPT_TRACE_DIR"=<directory path>\n"
2074 " Specify trace directory for trace output.\n"
2075 " By default, trace output will created at\n"
2076 " $HOME directory and parameter must be\n"
2077 " specified once only.\n"
2078 " --"OPT_TRACE_BUF_SIZE"=<int>\n"
2079 " Specify maximum size of allocated memory\n"
2080 " for trace output for each thread. Valid\n"
2081 " unit can be either 'B|K|M' for 'Bytes',\n"
2082 " 'KBytes' and 'MBytes' respectively.\n"
2083 " Default is 1MB and parameter must be\n"
2084 " specified once only.\n"
2085 " --"OPT_TRACE_MODE"=<o[verwrite] | d[iscard]>\n"
2086 " Specify the mode of update of trace\n"
2087 " output file. Either update on a file can\n"
2088 " be wrapped or discarded when file size\n"
2089 " reaches its maximum limit.\n"
2090 " Default mode is 'overwrite' and parameter\n"
2091 " must be specified once only.\n"
2092 #endif /* !RTE_EXEC_ENV_WINDOWS */
2093 " -v Display version information on startup\n"
2094 " -h, --help This help\n"
2095 " --"OPT_IN_MEMORY" Operate entirely in memory. This will\n"
2096 " disable secondary process support\n"
2097 " --"OPT_BASE_VIRTADDR" Base virtual address\n"
2098 " --"OPT_TELEMETRY" Enable telemetry support (on by default)\n"
2099 " --"OPT_NO_TELEMETRY" Disable telemetry support\n"
2100 " --"OPT_FORCE_MAX_SIMD_BITWIDTH" Force the max SIMD bitwidth\n"
2101 "\nEAL options for DEBUG use only:\n"
2102 " --"OPT_HUGE_UNLINK" Unlink hugepage files after init\n"
2103 " --"OPT_NO_HUGE" Use malloc instead of hugetlbfs\n"
2104 " --"OPT_NO_PCI" Disable PCI\n"
2105 " --"OPT_NO_HPET" Disable HPET\n"
2106 " --"OPT_NO_SHCONF" No shared config (mmap'd files)\n"
2107 "\n", RTE_MAX_LCORE);