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numam-dpdk/lib/eal/common/eal_common_options.c
Abdullah Sevincer aec322ce15 eal: export coremask parsing helper 
DLB2 has a need to parse a user supplied coremask as part
of an optimization that associates optimal core/resource
pairs. Therefore eal_parse_coremask has been renamed
to rte_eal_parse_coremask and exported but kept internal.

Signed-off-by: Abdullah Sevincer <abdullah.sevincer@intel.com>
Signed-off-by: David Marchand <david.marchand@redhat.com>
2022-09-23 12:07:49 +02:00

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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2014 Intel Corporation.
* Copyright(c) 2014 6WIND S.A.
*/
#include <stdlib.h>
#include <string.h>
#ifndef RTE_EXEC_ENV_WINDOWS
#include <syslog.h>
#endif
#include <ctype.h>
#include <limits.h>
#include <errno.h>
#include <getopt.h>
#ifndef RTE_EXEC_ENV_WINDOWS
#include <dlfcn.h>
#include <libgen.h>
#endif
#include <sys/stat.h>
#ifndef RTE_EXEC_ENV_WINDOWS
#include <dirent.h>
#endif
#include <rte_string_fns.h>
#include <rte_eal.h>
#include <rte_log.h>
#include <rte_lcore.h>
#include <rte_memory.h>
#include <rte_tailq.h>
#include <rte_version.h>
#include <rte_devargs.h>
#include <rte_memcpy.h>
#ifndef RTE_EXEC_ENV_WINDOWS
#include <rte_telemetry.h>
#endif
#include <rte_vect.h>
#include "eal_internal_cfg.h"
#include "eal_options.h"
#include "eal_filesystem.h"
#include "eal_private.h"
#include "eal_log.h"
#ifndef RTE_EXEC_ENV_WINDOWS
#include "eal_trace.h"
#endif
#define BITS_PER_HEX 4
#define LCORE_OPT_LST 1
#define LCORE_OPT_MSK 2
#define LCORE_OPT_MAP 3
const char
eal_short_options[] =
"a:" /* allow */
"b:" /* block */
"c:" /* coremask */
"s:" /* service coremask */
"d:" /* driver */
"h" /* help */
"l:" /* corelist */
"S:" /* service corelist */
"m:" /* memory size */
"n:" /* memory channels */
"r:" /* memory ranks */
"v" /* version */
;
const struct option
eal_long_options[] = {
{OPT_BASE_VIRTADDR, 1, NULL, OPT_BASE_VIRTADDR_NUM },
{OPT_CREATE_UIO_DEV, 0, NULL, OPT_CREATE_UIO_DEV_NUM },
{OPT_FILE_PREFIX, 1, NULL, OPT_FILE_PREFIX_NUM },
{OPT_HELP, 0, NULL, OPT_HELP_NUM },
{OPT_HUGE_DIR, 1, NULL, OPT_HUGE_DIR_NUM },
{OPT_HUGE_UNLINK, 2, NULL, OPT_HUGE_UNLINK_NUM },
{OPT_IOVA_MODE, 1, NULL, OPT_IOVA_MODE_NUM },
{OPT_LCORES, 1, NULL, OPT_LCORES_NUM },
{OPT_LOG_LEVEL, 1, NULL, OPT_LOG_LEVEL_NUM },
{OPT_TRACE, 1, NULL, OPT_TRACE_NUM },
{OPT_TRACE_DIR, 1, NULL, OPT_TRACE_DIR_NUM },
{OPT_TRACE_BUF_SIZE, 1, NULL, OPT_TRACE_BUF_SIZE_NUM },
{OPT_TRACE_MODE, 1, NULL, OPT_TRACE_MODE_NUM },
{OPT_MAIN_LCORE, 1, NULL, OPT_MAIN_LCORE_NUM },
{OPT_MBUF_POOL_OPS_NAME, 1, NULL, OPT_MBUF_POOL_OPS_NAME_NUM},
{OPT_NO_HPET, 0, NULL, OPT_NO_HPET_NUM },
{OPT_NO_HUGE, 0, NULL, OPT_NO_HUGE_NUM },
{OPT_NO_PCI, 0, NULL, OPT_NO_PCI_NUM },
{OPT_NO_SHCONF, 0, NULL, OPT_NO_SHCONF_NUM },
{OPT_IN_MEMORY, 0, NULL, OPT_IN_MEMORY_NUM },
{OPT_DEV_BLOCK, 1, NULL, OPT_DEV_BLOCK_NUM },
{OPT_DEV_ALLOW, 1, NULL, OPT_DEV_ALLOW_NUM },
{OPT_PROC_TYPE, 1, NULL, OPT_PROC_TYPE_NUM },
{OPT_SOCKET_MEM, 1, NULL, OPT_SOCKET_MEM_NUM },
{OPT_SOCKET_LIMIT, 1, NULL, OPT_SOCKET_LIMIT_NUM },
{OPT_SYSLOG, 1, NULL, OPT_SYSLOG_NUM },
{OPT_VDEV, 1, NULL, OPT_VDEV_NUM },
{OPT_VFIO_INTR, 1, NULL, OPT_VFIO_INTR_NUM },
{OPT_VFIO_VF_TOKEN, 1, NULL, OPT_VFIO_VF_TOKEN_NUM },
{OPT_VMWARE_TSC_MAP, 0, NULL, OPT_VMWARE_TSC_MAP_NUM },
{OPT_LEGACY_MEM, 0, NULL, OPT_LEGACY_MEM_NUM },
{OPT_SINGLE_FILE_SEGMENTS, 0, NULL, OPT_SINGLE_FILE_SEGMENTS_NUM},
{OPT_MATCH_ALLOCATIONS, 0, NULL, OPT_MATCH_ALLOCATIONS_NUM},
{OPT_TELEMETRY, 0, NULL, OPT_TELEMETRY_NUM },
{OPT_NO_TELEMETRY, 0, NULL, OPT_NO_TELEMETRY_NUM },
{OPT_FORCE_MAX_SIMD_BITWIDTH, 1, NULL, OPT_FORCE_MAX_SIMD_BITWIDTH_NUM},
{OPT_HUGE_WORKER_STACK, 2, NULL, OPT_HUGE_WORKER_STACK_NUM },
{0, 0, NULL, 0 }
};
TAILQ_HEAD(shared_driver_list, shared_driver);
/* Definition for shared object drivers. */
struct shared_driver {
TAILQ_ENTRY(shared_driver) next;
char name[PATH_MAX];
void* lib_handle;
};
/* List of external loadable drivers */
static struct shared_driver_list solib_list =
TAILQ_HEAD_INITIALIZER(solib_list);
#ifndef RTE_EXEC_ENV_WINDOWS
/* Default path of external loadable drivers */
static const char *default_solib_dir = RTE_EAL_PMD_PATH;
#endif
/*
* Stringified version of solib path used by dpdk-pmdinfo.py
* Note: PLEASE DO NOT ALTER THIS without making a corresponding
* change to usertools/dpdk-pmdinfo.py
*/
static const char dpdk_solib_path[] __rte_used =
"DPDK_PLUGIN_PATH=" RTE_EAL_PMD_PATH;
TAILQ_HEAD(device_option_list, device_option);
struct device_option {
TAILQ_ENTRY(device_option) next;
enum rte_devtype type;
char arg[];
};
static struct device_option_list devopt_list =
TAILQ_HEAD_INITIALIZER(devopt_list);
static int main_lcore_parsed;
static int mem_parsed;
static int core_parsed;
/* Allow the application to print its usage message too if set */
static rte_usage_hook_t rte_application_usage_hook;
/* Returns rte_usage_hook_t */
rte_usage_hook_t
eal_get_application_usage_hook(void)
{
return rte_application_usage_hook;
}
/* Set a per-application usage message */
rte_usage_hook_t
rte_set_application_usage_hook(rte_usage_hook_t usage_func)
{
rte_usage_hook_t old_func;
/* Will be NULL on the first call to denote the last usage routine. */
old_func = rte_application_usage_hook;
rte_application_usage_hook = usage_func;
return old_func;
}
#ifndef RTE_EXEC_ENV_WINDOWS
static char **eal_args;
static char **eal_app_args;
#define EAL_PARAM_REQ "/eal/params"
#define EAL_APP_PARAM_REQ "/eal/app_params"
/* callback handler for telemetry library to report out EAL flags */
int
handle_eal_info_request(const char *cmd, const char *params __rte_unused,
struct rte_tel_data *d)
{
char **args;
int used = 0;
int i = 0;
if (strcmp(cmd, EAL_PARAM_REQ) == 0)
args = eal_args;
else
args = eal_app_args;
rte_tel_data_start_array(d, RTE_TEL_STRING_VAL);
if (args == NULL || args[0] == NULL)
return 0;
for ( ; args[i] != NULL; i++)
used = rte_tel_data_add_array_string(d, args[i]);
return used;
}
int
eal_save_args(int argc, char **argv)
{
int i, j;
rte_telemetry_register_cmd(EAL_PARAM_REQ, handle_eal_info_request,
"Returns EAL commandline parameters used. Takes no parameters");
rte_telemetry_register_cmd(EAL_APP_PARAM_REQ, handle_eal_info_request,
"Returns app commandline parameters used. Takes no parameters");
/* clone argv to report out later. We overprovision, but
* this does not waste huge amounts of memory
*/
eal_args = calloc(argc + 1, sizeof(*eal_args));
if (eal_args == NULL)
return -1;
for (i = 0; i < argc; i++) {
if (strcmp(argv[i], "--") == 0)
break;
eal_args[i] = strdup(argv[i]);
}
eal_args[i++] = NULL; /* always finish with NULL */
/* allow reporting of any app args we know about too */
if (i >= argc)
return 0;
eal_app_args = calloc(argc - i + 1, sizeof(*eal_args));
if (eal_app_args == NULL)
return -1;
for (j = 0; i < argc; j++, i++)
eal_app_args[j] = strdup(argv[i]);
eal_app_args[j] = NULL;
return 0;
}
#endif
static int
eal_option_device_add(enum rte_devtype type, const char *optarg)
{
struct device_option *devopt;
size_t optlen;
int ret;
optlen = strlen(optarg) + 1;
devopt = calloc(1, sizeof(*devopt) + optlen);
if (devopt == NULL) {
RTE_LOG(ERR, EAL, "Unable to allocate device option\n");
return -ENOMEM;
}
devopt->type = type;
ret = strlcpy(devopt->arg, optarg, optlen);
if (ret < 0) {
RTE_LOG(ERR, EAL, "Unable to copy device option\n");
free(devopt);
return -EINVAL;
}
TAILQ_INSERT_TAIL(&devopt_list, devopt, next);
return 0;
}
int
eal_option_device_parse(void)
{
struct device_option *devopt;
void *tmp;
int ret = 0;
RTE_TAILQ_FOREACH_SAFE(devopt, &devopt_list, next, tmp) {
if (ret == 0) {
ret = rte_devargs_add(devopt->type, devopt->arg);
if (ret)
RTE_LOG(ERR, EAL, "Unable to parse device '%s'\n",
devopt->arg);
}
TAILQ_REMOVE(&devopt_list, devopt, next);
free(devopt);
}
return ret;
}
const char *
eal_get_hugefile_prefix(void)
{
const struct internal_config *internal_conf =
eal_get_internal_configuration();
if (internal_conf->hugefile_prefix != NULL)
return internal_conf->hugefile_prefix;
return HUGEFILE_PREFIX_DEFAULT;
}
void
eal_reset_internal_config(struct internal_config *internal_cfg)
{
int i;
internal_cfg->memory = 0;
internal_cfg->force_nrank = 0;
internal_cfg->force_nchannel = 0;
internal_cfg->hugefile_prefix = NULL;
internal_cfg->hugepage_dir = NULL;
internal_cfg->hugepage_file.unlink_before_mapping = false;
internal_cfg->hugepage_file.unlink_existing = true;
internal_cfg->force_sockets = 0;
/* zero out the NUMA config */
for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
internal_cfg->socket_mem[i] = 0;
internal_cfg->force_socket_limits = 0;
/* zero out the NUMA limits config */
for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
internal_cfg->socket_limit[i] = 0;
/* zero out hugedir descriptors */
for (i = 0; i < MAX_HUGEPAGE_SIZES; i++) {
memset(&internal_cfg->hugepage_info[i], 0,
sizeof(internal_cfg->hugepage_info[0]));
internal_cfg->hugepage_info[i].lock_descriptor = -1;
}
internal_cfg->base_virtaddr = 0;
#ifdef LOG_DAEMON
internal_cfg->syslog_facility = LOG_DAEMON;
#endif
/* if set to NONE, interrupt mode is determined automatically */
internal_cfg->vfio_intr_mode = RTE_INTR_MODE_NONE;
memset(internal_cfg->vfio_vf_token, 0,
sizeof(internal_cfg->vfio_vf_token));
#ifdef RTE_LIBEAL_USE_HPET
internal_cfg->no_hpet = 0;
#else
internal_cfg->no_hpet = 1;
#endif
internal_cfg->vmware_tsc_map = 0;
internal_cfg->create_uio_dev = 0;
internal_cfg->iova_mode = RTE_IOVA_DC;
internal_cfg->user_mbuf_pool_ops_name = NULL;
CPU_ZERO(&internal_cfg->ctrl_cpuset);
internal_cfg->init_complete = 0;
internal_cfg->max_simd_bitwidth.bitwidth = RTE_VECT_DEFAULT_SIMD_BITWIDTH;
internal_cfg->max_simd_bitwidth.forced = 0;
}
static int
eal_plugin_add(const char *path)
{
struct shared_driver *solib;
solib = malloc(sizeof(*solib));
if (solib == NULL) {
RTE_LOG(ERR, EAL, "malloc(solib) failed\n");
return -1;
}
memset(solib, 0, sizeof(*solib));
strlcpy(solib->name, path, PATH_MAX);
TAILQ_INSERT_TAIL(&solib_list, solib, next);
return 0;
}
#ifdef RTE_EXEC_ENV_WINDOWS
int
eal_plugins_init(void)
{
return 0;
}
#else
static int
eal_plugindir_init(const char *path)
{
DIR *d = NULL;
struct dirent *dent = NULL;
char sopath[PATH_MAX];
if (path == NULL || *path == '\0')
return 0;
d = opendir(path);
if (d == NULL) {
RTE_LOG(ERR, EAL, "failed to open directory %s: %s\n",
path, strerror(errno));
return -1;
}
while ((dent = readdir(d)) != NULL) {
struct stat sb;
int nlen = strnlen(dent->d_name, sizeof(dent->d_name));
/* check if name ends in .so or .so.ABI_VERSION */
if (strcmp(&dent->d_name[nlen - 3], ".so") != 0 &&
strcmp(&dent->d_name[nlen - 4 - strlen(ABI_VERSION)],
".so."ABI_VERSION) != 0)
continue;
snprintf(sopath, sizeof(sopath), "%s/%s", path, dent->d_name);
/* if a regular file, add to list to load */
if (!(stat(sopath, &sb) == 0 && S_ISREG(sb.st_mode)))
continue;
if (eal_plugin_add(sopath) == -1)
break;
}
closedir(d);
/* XXX this ignores failures from readdir() itself */
return (dent == NULL) ? 0 : -1;
}
static int
verify_perms(const char *dirpath)
{
struct stat st;
/* if not root, check down one level first */
if (strcmp(dirpath, "/") != 0) {
static __thread char last_dir_checked[PATH_MAX];
char copy[PATH_MAX];
const char *dir;
strlcpy(copy, dirpath, PATH_MAX);
dir = dirname(copy);
if (strncmp(dir, last_dir_checked, PATH_MAX) != 0) {
if (verify_perms(dir) != 0)
return -1;
strlcpy(last_dir_checked, dir, PATH_MAX);
}
}
/* call stat to check for permissions and ensure not world writable */
if (stat(dirpath, &st) != 0) {
RTE_LOG(ERR, EAL, "Error with stat on %s, %s\n",
dirpath, strerror(errno));
return -1;
}
if (st.st_mode & S_IWOTH) {
RTE_LOG(ERR, EAL,
"Error, directory path %s is world-writable and insecure\n",
dirpath);
return -1;
}
return 0;
}
static void *
eal_dlopen(const char *pathname)
{
void *retval = NULL;
char *realp = realpath(pathname, NULL);
if (realp == NULL && errno == ENOENT) {
/* not a full or relative path, try a load from system dirs */
retval = dlopen(pathname, RTLD_NOW);
if (retval == NULL)
RTE_LOG(ERR, EAL, "%s\n", dlerror());
return retval;
}
if (realp == NULL) {
RTE_LOG(ERR, EAL, "Error with realpath for %s, %s\n",
pathname, strerror(errno));
goto out;
}
if (strnlen(realp, PATH_MAX) == PATH_MAX) {
RTE_LOG(ERR, EAL, "Error, driver path greater than PATH_MAX\n");
goto out;
}
/* do permissions checks */
if (verify_perms(realp) != 0)
goto out;
retval = dlopen(realp, RTLD_NOW);
if (retval == NULL)
RTE_LOG(ERR, EAL, "%s\n", dlerror());
out:
free(realp);
return retval;
}
static int
is_shared_build(void)
{
#define EAL_SO "librte_eal.so"
char soname[32];
size_t len, minlen = strlen(EAL_SO);
len = strlcpy(soname, EAL_SO"."ABI_VERSION, sizeof(soname));
if (len > sizeof(soname)) {
RTE_LOG(ERR, EAL, "Shared lib name too long in shared build check\n");
len = sizeof(soname) - 1;
}
while (len >= minlen) {
void *handle;
/* check if we have this .so loaded, if so - shared build */
RTE_LOG(DEBUG, EAL, "Checking presence of .so '%s'\n", soname);
handle = dlopen(soname, RTLD_LAZY | RTLD_NOLOAD);
if (handle != NULL) {
RTE_LOG(INFO, EAL, "Detected shared linkage of DPDK\n");
dlclose(handle);
return 1;
}
/* remove any version numbers off the end to retry */
while (len-- > 0)
if (soname[len] == '.') {
soname[len] = '\0';
break;
}
}
RTE_LOG(INFO, EAL, "Detected static linkage of DPDK\n");
return 0;
}
int
eal_plugins_init(void)
{
struct shared_driver *solib = NULL;
struct stat sb;
/* If we are not statically linked, add default driver loading
* path if it exists as a directory.
* (Using dlopen with NOLOAD flag on EAL, will return NULL if the EAL
* shared library is not already loaded i.e. it's statically linked.)
*/
if (is_shared_build() &&
*default_solib_dir != '\0' &&
stat(default_solib_dir, &sb) == 0 &&
S_ISDIR(sb.st_mode))
eal_plugin_add(default_solib_dir);
TAILQ_FOREACH(solib, &solib_list, next) {
if (stat(solib->name, &sb) == 0 && S_ISDIR(sb.st_mode)) {
if (eal_plugindir_init(solib->name) == -1) {
RTE_LOG(ERR, EAL,
"Cannot init plugin directory %s\n",
solib->name);
return -1;
}
} else {
RTE_LOG(DEBUG, EAL, "open shared lib %s\n",
solib->name);
solib->lib_handle = eal_dlopen(solib->name);
if (solib->lib_handle == NULL)
return -1;
}
}
return 0;
}
#endif
/*
* Parse the coremask given as argument (hexadecimal string) and fill
* the global configuration (core role and core count) with the parsed
* value.
*/
static int xdigit2val(unsigned char c)
{
int val;
if (isdigit(c))
val = c - '0';
else if (isupper(c))
val = c - 'A' + 10;
else
val = c - 'a' + 10;
return val;
}
static int
eal_parse_service_coremask(const char *coremask)
{
struct rte_config *cfg = rte_eal_get_configuration();
int i, j, idx = 0;
unsigned int count = 0;
char c;
int val;
uint32_t taken_lcore_count = 0;
if (coremask == NULL)
return -1;
/* Remove all blank characters ahead and after .
* Remove 0x/0X if exists.
*/
while (isblank(*coremask))
coremask++;
if (coremask[0] == '0' && ((coremask[1] == 'x')
|| (coremask[1] == 'X')))
coremask += 2;
i = strlen(coremask);
while ((i > 0) && isblank(coremask[i - 1]))
i--;
if (i == 0)
return -1;
for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
c = coremask[i];
if (isxdigit(c) == 0) {
/* invalid characters */
return -1;
}
val = xdigit2val(c);
for (j = 0; j < BITS_PER_HEX && idx < RTE_MAX_LCORE;
j++, idx++) {
if ((1 << j) & val) {
/* handle main lcore already parsed */
uint32_t lcore = idx;
if (main_lcore_parsed &&
cfg->main_lcore == lcore) {
RTE_LOG(ERR, EAL,
"lcore %u is main lcore, cannot use as service core\n",
idx);
return -1;
}
if (eal_cpu_detected(idx) == 0) {
RTE_LOG(ERR, EAL,
"lcore %u unavailable\n", idx);
return -1;
}
if (cfg->lcore_role[idx] == ROLE_RTE)
taken_lcore_count++;
lcore_config[idx].core_role = ROLE_SERVICE;
count++;
}
}
}
for (; i >= 0; i--)
if (coremask[i] != '0')
return -1;
for (; idx < RTE_MAX_LCORE; idx++)
lcore_config[idx].core_index = -1;
if (count == 0)
return -1;
if (core_parsed && taken_lcore_count != count) {
RTE_LOG(WARNING, EAL,
"Not all service cores are in the coremask. "
"Please ensure -c or -l includes service cores\n");
}
cfg->service_lcore_count = count;
return 0;
}
static int
eal_service_cores_parsed(void)
{
int idx;
for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
if (lcore_config[idx].core_role == ROLE_SERVICE)
return 1;
}
return 0;
}
static int
update_lcore_config(int *cores)
{
struct rte_config *cfg = rte_eal_get_configuration();
unsigned int count = 0;
unsigned int i;
int ret = 0;
for (i = 0; i < RTE_MAX_LCORE; i++) {
if (cores[i] != -1) {
if (eal_cpu_detected(i) == 0) {
RTE_LOG(ERR, EAL, "lcore %u unavailable\n", i);
ret = -1;
continue;
}
cfg->lcore_role[i] = ROLE_RTE;
count++;
} else {
cfg->lcore_role[i] = ROLE_OFF;
}
lcore_config[i].core_index = cores[i];
}
if (!ret)
cfg->lcore_count = count;
return ret;
}
static int
check_core_list(int *lcores, unsigned int count)
{
char lcorestr[RTE_MAX_LCORE * 10];
bool overflow = false;
int len = 0, ret;
unsigned int i;
for (i = 0; i < count; i++) {
if (lcores[i] < RTE_MAX_LCORE)
continue;
RTE_LOG(ERR, EAL, "lcore %d >= RTE_MAX_LCORE (%d)\n",
lcores[i], RTE_MAX_LCORE);
overflow = true;
}
if (!overflow)
return 0;
/*
* We've encountered a core that's greater than RTE_MAX_LCORE,
* suggest using --lcores option to map lcores onto physical cores
* greater than RTE_MAX_LCORE.
*/
for (i = 0; i < count; i++) {
ret = snprintf(&lcorestr[len], sizeof(lcorestr) - len,
"%d@%d,", i, lcores[i]);
if (ret > 0)
len = len + ret;
}
if (len > 0)
lcorestr[len - 1] = 0;
RTE_LOG(ERR, EAL, "To use high physical core ids, "
"please use --lcores to map them to lcore ids below RTE_MAX_LCORE, "
"e.g. --lcores %s\n", lcorestr);
return -1;
}
int
rte_eal_parse_coremask(const char *coremask, int *cores)
{
const char *coremask_orig = coremask;
int lcores[RTE_MAX_LCORE];
unsigned int count = 0;
int i, j, idx;
int val;
char c;
for (idx = 0; idx < RTE_MAX_LCORE; idx++)
cores[idx] = -1;
idx = 0;
/* Remove all blank characters ahead and after .
* Remove 0x/0X if exists.
*/
while (isblank(*coremask))
coremask++;
if (coremask[0] == '0' && ((coremask[1] == 'x')
|| (coremask[1] == 'X')))
coremask += 2;
i = strlen(coremask);
while ((i > 0) && isblank(coremask[i - 1]))
i--;
if (i == 0) {
RTE_LOG(ERR, EAL, "No lcores in coremask: [%s]\n",
coremask_orig);
return -1;
}
for (i = i - 1; i >= 0; i--) {
c = coremask[i];
if (isxdigit(c) == 0) {
/* invalid characters */
RTE_LOG(ERR, EAL, "invalid characters in coremask: [%s]\n",
coremask_orig);
return -1;
}
val = xdigit2val(c);
for (j = 0; j < BITS_PER_HEX; j++, idx++)
{
if ((1 << j) & val) {
if (count >= RTE_MAX_LCORE) {
RTE_LOG(ERR, EAL, "Too many lcores provided. Cannot exceed RTE_MAX_LCORE (%d)\n",
RTE_MAX_LCORE);
return -1;
}
lcores[count++] = idx;
}
}
}
if (count == 0) {
RTE_LOG(ERR, EAL, "No lcores in coremask: [%s]\n",
coremask_orig);
return -1;
}
if (check_core_list(lcores, count))
return -1;
/*
* Now that we've got a list of cores no longer than RTE_MAX_LCORE,
* and no lcore in that list is greater than RTE_MAX_LCORE, populate
* the cores array.
*/
do {
count--;
cores[lcores[count]] = count;
} while (count != 0);
return 0;
}
static int
eal_parse_service_corelist(const char *corelist)
{
struct rte_config *cfg = rte_eal_get_configuration();
int i;
unsigned count = 0;
char *end = NULL;
uint32_t min, max, idx;
uint32_t taken_lcore_count = 0;
if (corelist == NULL)
return -1;
/* Remove all blank characters ahead and after */
while (isblank(*corelist))
corelist++;
i = strlen(corelist);
while ((i > 0) && isblank(corelist[i - 1]))
i--;
/* Get list of cores */
min = RTE_MAX_LCORE;
do {
while (isblank(*corelist))
corelist++;
if (*corelist == '\0')
return -1;
errno = 0;
idx = strtoul(corelist, &end, 10);
if (errno || end == NULL)
return -1;
if (idx >= RTE_MAX_LCORE)
return -1;
while (isblank(*end))
end++;
if (*end == '-') {
min = idx;
} else if ((*end == ',') || (*end == '\0')) {
max = idx;
if (min == RTE_MAX_LCORE)
min = idx;
for (idx = min; idx <= max; idx++) {
if (cfg->lcore_role[idx] != ROLE_SERVICE) {
/* handle main lcore already parsed */
uint32_t lcore = idx;
if (cfg->main_lcore == lcore &&
main_lcore_parsed) {
RTE_LOG(ERR, EAL,
"Error: lcore %u is main lcore, cannot use as service core\n",
idx);
return -1;
}
if (cfg->lcore_role[idx] == ROLE_RTE)
taken_lcore_count++;
lcore_config[idx].core_role =
ROLE_SERVICE;
count++;
}
}
min = RTE_MAX_LCORE;
} else
return -1;
corelist = end + 1;
} while (*end != '\0');
if (count == 0)
return -1;
if (core_parsed && taken_lcore_count != count) {
RTE_LOG(WARNING, EAL,
"Not all service cores were in the coremask. "
"Please ensure -c or -l includes service cores\n");
}
return 0;
}
static int
eal_parse_corelist(const char *corelist, int *cores)
{
unsigned int count = 0, i;
int lcores[RTE_MAX_LCORE];
char *end = NULL;
int min, max;
int idx;
for (idx = 0; idx < RTE_MAX_LCORE; idx++)
cores[idx] = -1;
/* Remove all blank characters ahead */
while (isblank(*corelist))
corelist++;
/* Get list of cores */
min = -1;
do {
while (isblank(*corelist))
corelist++;
if (*corelist == '\0')
return -1;
errno = 0;
idx = strtol(corelist, &end, 10);
if (errno || end == NULL)
return -1;
if (idx < 0)
return -1;
while (isblank(*end))
end++;
if (*end == '-') {
min = idx;
} else if ((*end == ',') || (*end == '\0')) {
max = idx;
if (min == -1)
min = idx;
for (idx = min; idx <= max; idx++) {
bool dup = false;
/* Check if this idx is already present */
for (i = 0; i < count; i++) {
if (lcores[i] == idx)
dup = true;
}
if (dup)
continue;
if (count >= RTE_MAX_LCORE) {
RTE_LOG(ERR, EAL, "Too many lcores provided. Cannot exceed RTE_MAX_LCORE (%d)\n",
RTE_MAX_LCORE);
return -1;
}
lcores[count++] = idx;
}
min = -1;
} else
return -1;
corelist = end + 1;
} while (*end != '\0');
if (count == 0)
return -1;
if (check_core_list(lcores, count))
return -1;
/*
* Now that we've got a list of cores no longer than RTE_MAX_LCORE,
* and no lcore in that list is greater than RTE_MAX_LCORE, populate
* the cores array.
*/
do {
count--;
cores[lcores[count]] = count;
} while (count != 0);
return 0;
}
/* Changes the lcore id of the main thread */
static int
eal_parse_main_lcore(const char *arg)
{
char *parsing_end;
struct rte_config *cfg = rte_eal_get_configuration();
errno = 0;
cfg->main_lcore = (uint32_t) strtol(arg, &parsing_end, 0);
if (errno || parsing_end[0] != 0)
return -1;
if (cfg->main_lcore >= RTE_MAX_LCORE)
return -1;
main_lcore_parsed = 1;
/* ensure main core is not used as service core */
if (lcore_config[cfg->main_lcore].core_role == ROLE_SERVICE) {
RTE_LOG(ERR, EAL,
"Error: Main lcore is used as a service core\n");
return -1;
}
return 0;
}
/*
* Parse elem, the elem could be single number/range or '(' ')' group
* 1) A single number elem, it's just a simple digit. e.g. 9
* 2) A single range elem, two digits with a '-' between. e.g. 2-6
* 3) A group elem, combines multiple 1) or 2) with '( )'. e.g (0,2-4,6)
* Within group elem, '-' used for a range separator;
* ',' used for a single number.
*/
static int
eal_parse_set(const char *input, rte_cpuset_t *set)
{
unsigned idx;
const char *str = input;
char *end = NULL;
unsigned min, max;
CPU_ZERO(set);
while (isblank(*str))
str++;
/* only digit or left bracket is qualify for start point */
if ((!isdigit(*str) && *str != '(') || *str == '\0')
return -1;
/* process single number or single range of number */
if (*str != '(') {
errno = 0;
idx = strtoul(str, &end, 10);
if (errno || end == NULL || idx >= CPU_SETSIZE)
return -1;
else {
while (isblank(*end))
end++;
min = idx;
max = idx;
if (*end == '-') {
/* process single <number>-<number> */
end++;
while (isblank(*end))
end++;
if (!isdigit(*end))
return -1;
errno = 0;
idx = strtoul(end, &end, 10);
if (errno || end == NULL || idx >= CPU_SETSIZE)
return -1;
max = idx;
while (isblank(*end))
end++;
if (*end != ',' && *end != '\0')
return -1;
}
if (*end != ',' && *end != '\0' &&
*end != '@')
return -1;
for (idx = RTE_MIN(min, max);
idx <= RTE_MAX(min, max); idx++)
CPU_SET(idx, set);
return end - input;
}
}
/* process set within bracket */
str++;
while (isblank(*str))
str++;
if (*str == '\0')
return -1;
min = RTE_MAX_LCORE;
do {
/* go ahead to the first digit */
while (isblank(*str))
str++;
if (!isdigit(*str))
return -1;
/* get the digit value */
errno = 0;
idx = strtoul(str, &end, 10);
if (errno || end == NULL || idx >= CPU_SETSIZE)
return -1;
/* go ahead to separator '-',',' and ')' */
while (isblank(*end))
end++;
if (*end == '-') {
if (min == RTE_MAX_LCORE)
min = idx;
else /* avoid continuous '-' */
return -1;
} else if ((*end == ',') || (*end == ')')) {
max = idx;
if (min == RTE_MAX_LCORE)
min = idx;
for (idx = RTE_MIN(min, max);
idx <= RTE_MAX(min, max); idx++)
CPU_SET(idx, set);
min = RTE_MAX_LCORE;
} else
return -1;
str = end + 1;
} while (*end != '\0' && *end != ')');
/*
* to avoid failure that tail blank makes end character check fail
* in eal_parse_lcores( )
*/
while (isblank(*str))
str++;
return str - input;
}
static int
check_cpuset(rte_cpuset_t *set)
{
unsigned int idx;
for (idx = 0; idx < CPU_SETSIZE; idx++) {
if (!CPU_ISSET(idx, set))
continue;
if (eal_cpu_detected(idx) == 0) {
RTE_LOG(ERR, EAL, "core %u "
"unavailable\n", idx);
return -1;
}
}
return 0;
}
/*
* The format pattern: --lcores='<lcores[@cpus]>[<,lcores[@cpus]>...]'
* lcores, cpus could be a single digit/range or a group.
* '(' and ')' are necessary if it's a group.
* If not supply '@cpus', the value of cpus uses the same as lcores.
* e.g. '1,2@(5-7),(3-5)@(0,2),(0,6),7-8' means start 9 EAL thread as below
* lcore 0 runs on cpuset 0x41 (cpu 0,6)
* lcore 1 runs on cpuset 0x2 (cpu 1)
* lcore 2 runs on cpuset 0xe0 (cpu 5,6,7)
* lcore 3,4,5 runs on cpuset 0x5 (cpu 0,2)
* lcore 6 runs on cpuset 0x41 (cpu 0,6)
* lcore 7 runs on cpuset 0x80 (cpu 7)
* lcore 8 runs on cpuset 0x100 (cpu 8)
*/
static int
eal_parse_lcores(const char *lcores)
{
struct rte_config *cfg = rte_eal_get_configuration();
rte_cpuset_t lcore_set;
unsigned int set_count;
unsigned idx = 0;
unsigned count = 0;
const char *lcore_start = NULL;
const char *end = NULL;
int offset;
rte_cpuset_t cpuset;
int lflags;
int ret = -1;
if (lcores == NULL)
return -1;
/* Remove all blank characters ahead and after */
while (isblank(*lcores))
lcores++;
CPU_ZERO(&cpuset);
/* Reset lcore config */
for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
cfg->lcore_role[idx] = ROLE_OFF;
lcore_config[idx].core_index = -1;
CPU_ZERO(&lcore_config[idx].cpuset);
}
/* Get list of cores */
do {
while (isblank(*lcores))
lcores++;
if (*lcores == '\0')
goto err;
lflags = 0;
/* record lcore_set start point */
lcore_start = lcores;
/* go across a complete bracket */
if (*lcore_start == '(') {
lcores += strcspn(lcores, ")");
if (*lcores++ == '\0')
goto err;
}
/* scan the separator '@', ','(next) or '\0'(finish) */
lcores += strcspn(lcores, "@,");
if (*lcores == '@') {
/* explicit assign cpuset and update the end cursor */
offset = eal_parse_set(lcores + 1, &cpuset);
if (offset < 0)
goto err;
end = lcores + 1 + offset;
} else { /* ',' or '\0' */
/* haven't given cpuset, current loop done */
end = lcores;
/* go back to check <number>-<number> */
offset = strcspn(lcore_start, "(-");
if (offset < (end - lcore_start) &&
*(lcore_start + offset) != '(')
lflags = 1;
}
if (*end != ',' && *end != '\0')
goto err;
/* parse lcore_set from start point */
if (eal_parse_set(lcore_start, &lcore_set) < 0)
goto err;
/* without '@', by default using lcore_set as cpuset */
if (*lcores != '@')
rte_memcpy(&cpuset, &lcore_set, sizeof(cpuset));
set_count = CPU_COUNT(&lcore_set);
/* start to update lcore_set */
for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
if (!CPU_ISSET(idx, &lcore_set))
continue;
set_count--;
if (cfg->lcore_role[idx] != ROLE_RTE) {
lcore_config[idx].core_index = count;
cfg->lcore_role[idx] = ROLE_RTE;
count++;
}
if (lflags) {
CPU_ZERO(&cpuset);
CPU_SET(idx, &cpuset);
}
if (check_cpuset(&cpuset) < 0)
goto err;
rte_memcpy(&lcore_config[idx].cpuset, &cpuset,
sizeof(rte_cpuset_t));
}
/* some cores from the lcore_set can't be handled by EAL */
if (set_count != 0)
goto err;
lcores = end + 1;
} while (*end != '\0');
if (count == 0)
goto err;
cfg->lcore_count = count;
ret = 0;
err:
return ret;
}
#ifndef RTE_EXEC_ENV_WINDOWS
static int
eal_parse_syslog(const char *facility, struct internal_config *conf)
{
int i;
static const struct {
const char *name;
int value;
} map[] = {
{ "auth", LOG_AUTH },
{ "cron", LOG_CRON },
{ "daemon", LOG_DAEMON },
{ "ftp", LOG_FTP },
{ "kern", LOG_KERN },
{ "lpr", LOG_LPR },
{ "mail", LOG_MAIL },
{ "news", LOG_NEWS },
{ "syslog", LOG_SYSLOG },
{ "user", LOG_USER },
{ "uucp", LOG_UUCP },
{ "local0", LOG_LOCAL0 },
{ "local1", LOG_LOCAL1 },
{ "local2", LOG_LOCAL2 },
{ "local3", LOG_LOCAL3 },
{ "local4", LOG_LOCAL4 },
{ "local5", LOG_LOCAL5 },
{ "local6", LOG_LOCAL6 },
{ "local7", LOG_LOCAL7 },
{ NULL, 0 }
};
for (i = 0; map[i].name; i++) {
if (!strcmp(facility, map[i].name)) {
conf->syslog_facility = map[i].value;
return 0;
}
}
return -1;
}
#endif
static void
eal_log_usage(void)
{
unsigned int level;
printf("Log type is a pattern matching items of this list"
" (plugins may be missing):\n");
rte_log_list_types(stdout, "\t");
printf("\n");
printf("Syntax using globbing pattern: ");
printf("--"OPT_LOG_LEVEL" pattern:level\n");
printf("Syntax using regular expression: ");
printf("--"OPT_LOG_LEVEL" regexp,level\n");
printf("Syntax for the global level: ");
printf("--"OPT_LOG_LEVEL" level\n");
printf("Logs are emitted if allowed by both global and specific levels.\n");
printf("\n");
printf("Log level can be a number or the first letters of its name:\n");
for (level = 1; level <= RTE_LOG_MAX; level++)
printf("\t%d %s\n", level, eal_log_level2str(level));
}
static int
eal_parse_log_priority(const char *level)
{
size_t len = strlen(level);
unsigned long tmp;
char *end;
unsigned int i;
if (len == 0)
return -1;
/* look for named values, skip 0 which is not a valid level */
for (i = 1; i <= RTE_LOG_MAX; i++) {
if (strncmp(eal_log_level2str(i), level, len) == 0)
return i;
}
/* not a string, maybe it is numeric */
errno = 0;
tmp = strtoul(level, &end, 0);
/* check for errors */
if (errno != 0 || end == NULL || *end != '\0' ||
tmp >= UINT32_MAX)
return -1;
return tmp;
}
static int
eal_parse_log_level(const char *arg)
{
const char *pattern = NULL;
const char *regex = NULL;
char *str, *level;
int priority;
if (strcmp(arg, "help") == 0) {
eal_log_usage();
exit(EXIT_SUCCESS);
}
str = strdup(arg);
if (str == NULL)
return -1;
if ((level = strchr(str, ','))) {
regex = str;
*level++ = '\0';
} else if ((level = strchr(str, ':'))) {
pattern = str;
*level++ = '\0';
} else {
level = str;
}
priority = eal_parse_log_priority(level);
if (priority <= 0) {
fprintf(stderr, "Invalid log level: %s\n", level);
goto fail;
}
if (priority > (int)RTE_LOG_MAX) {
fprintf(stderr, "Log level %d higher than maximum (%d)\n",
priority, RTE_LOG_MAX);
priority = RTE_LOG_MAX;
}
if (regex) {
if (rte_log_set_level_regexp(regex, priority) < 0) {
fprintf(stderr, "cannot set log level %s,%d\n",
regex, priority);
goto fail;
}
if (eal_log_save_regexp(regex, priority) < 0)
goto fail;
} else if (pattern) {
if (rte_log_set_level_pattern(pattern, priority) < 0) {
fprintf(stderr, "cannot set log level %s:%d\n",
pattern, priority);
goto fail;
}
if (eal_log_save_pattern(pattern, priority) < 0)
goto fail;
} else {
rte_log_set_global_level(priority);
}
free(str);
return 0;
fail:
free(str);
return -1;
}
static enum rte_proc_type_t
eal_parse_proc_type(const char *arg)
{
if (strncasecmp(arg, "primary", sizeof("primary")) == 0)
return RTE_PROC_PRIMARY;
if (strncasecmp(arg, "secondary", sizeof("secondary")) == 0)
return RTE_PROC_SECONDARY;
if (strncasecmp(arg, "auto", sizeof("auto")) == 0)
return RTE_PROC_AUTO;
return RTE_PROC_INVALID;
}
static int
eal_parse_iova_mode(const char *name)
{
int mode;
struct internal_config *internal_conf =
eal_get_internal_configuration();
if (name == NULL)
return -1;
if (!strcmp("pa", name))
mode = RTE_IOVA_PA;
else if (!strcmp("va", name))
mode = RTE_IOVA_VA;
else
return -1;
internal_conf->iova_mode = mode;
return 0;
}
static int
eal_parse_simd_bitwidth(const char *arg)
{
char *end;
unsigned long bitwidth;
int ret;
struct internal_config *internal_conf =
eal_get_internal_configuration();
if (arg == NULL || arg[0] == '\0')
return -1;
errno = 0;
bitwidth = strtoul(arg, &end, 0);
/* check for errors */
if (errno != 0 || end == NULL || *end != '\0' || bitwidth > RTE_VECT_SIMD_MAX)
return -1;
if (bitwidth == 0)
bitwidth = (unsigned long) RTE_VECT_SIMD_MAX;
ret = rte_vect_set_max_simd_bitwidth(bitwidth);
if (ret < 0)
return -1;
internal_conf->max_simd_bitwidth.forced = 1;
return 0;
}
static int
eal_parse_base_virtaddr(const char *arg)
{
char *end;
uint64_t addr;
struct internal_config *internal_conf =
eal_get_internal_configuration();
errno = 0;
addr = strtoull(arg, &end, 16);
/* check for errors */
if ((errno != 0) || (arg[0] == '\0') || end == NULL || (*end != '\0'))
return -1;
/* make sure we don't exceed 32-bit boundary on 32-bit target */
#ifndef RTE_ARCH_64
if (addr >= UINTPTR_MAX)
return -1;
#endif
/* align the addr on 16M boundary, 16MB is the minimum huge page
* size on IBM Power architecture. If the addr is aligned to 16MB,
* it can align to 2MB for x86. So this alignment can also be used
* on x86 and other architectures.
*/
internal_conf->base_virtaddr =
RTE_PTR_ALIGN_CEIL((uintptr_t)addr, (size_t)RTE_PGSIZE_16M);
return 0;
}
/* caller is responsible for freeing the returned string */
static char *
available_cores(void)
{
char *str = NULL;
int previous;
int sequence;
char *tmp;
int idx;
/* find the first available cpu */
for (idx = 0; idx < RTE_MAX_LCORE; idx++) {
if (eal_cpu_detected(idx) == 0)
continue;
break;
}
if (idx >= RTE_MAX_LCORE)
return NULL;
/* first sequence */
if (asprintf(&str, "%d", idx) < 0)
return NULL;
previous = idx;
sequence = 0;
for (idx++ ; idx < RTE_MAX_LCORE; idx++) {
if (eal_cpu_detected(idx) == 0)
continue;
if (idx == previous + 1) {
previous = idx;
sequence = 1;
continue;
}
/* finish current sequence */
if (sequence) {
if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
free(str);
return NULL;
}
free(str);
str = tmp;
}
/* new sequence */
if (asprintf(&tmp, "%s,%d", str, idx) < 0) {
free(str);
return NULL;
}
free(str);
str = tmp;
previous = idx;
sequence = 0;
}
/* finish last sequence */
if (sequence) {
if (asprintf(&tmp, "%s-%d", str, previous) < 0) {
free(str);
return NULL;
}
free(str);
str = tmp;
}
return str;
}
#define HUGE_UNLINK_NEVER "never"
static int
eal_parse_huge_unlink(const char *arg, struct hugepage_file_discipline *out)
{
if (arg == NULL || strcmp(arg, "always") == 0) {
out->unlink_before_mapping = true;
return 0;
}
if (strcmp(arg, "existing") == 0) {
/* same as not specifying the option */
return 0;
}
if (strcmp(arg, HUGE_UNLINK_NEVER) == 0) {
RTE_LOG(WARNING, EAL, "Using --"OPT_HUGE_UNLINK"="
HUGE_UNLINK_NEVER" may create data leaks.\n");
out->unlink_existing = false;
return 0;
}
return -1;
}
int
eal_parse_common_option(int opt, const char *optarg,
struct internal_config *conf)
{
static int b_used;
static int a_used;
switch (opt) {
case 'b':
if (a_used)
goto ba_conflict;
if (eal_option_device_add(RTE_DEVTYPE_BLOCKED, optarg) < 0)
return -1;
b_used = 1;
break;
case 'a':
if (b_used)
goto ba_conflict;
if (eal_option_device_add(RTE_DEVTYPE_ALLOWED, optarg) < 0)
return -1;
a_used = 1;
break;
/* coremask */
case 'c': {
int lcore_indexes[RTE_MAX_LCORE];
if (eal_service_cores_parsed())
RTE_LOG(WARNING, EAL,
"Service cores parsed before dataplane cores. Please ensure -c is before -s or -S\n");
if (rte_eal_parse_coremask(optarg, lcore_indexes) < 0) {
RTE_LOG(ERR, EAL, "invalid coremask syntax\n");
return -1;
}
if (update_lcore_config(lcore_indexes) < 0) {
char *available = available_cores();
RTE_LOG(ERR, EAL,
"invalid coremask, please check specified cores are part of %s\n",
available);
free(available);
return -1;
}
if (core_parsed) {
RTE_LOG(ERR, EAL, "Option -c is ignored, because (%s) is set!\n",
(core_parsed == LCORE_OPT_LST) ? "-l" :
(core_parsed == LCORE_OPT_MAP) ? "--lcore" :
"-c");
return -1;
}
core_parsed = LCORE_OPT_MSK;
break;
}
/* corelist */
case 'l': {
int lcore_indexes[RTE_MAX_LCORE];
if (eal_service_cores_parsed())
RTE_LOG(WARNING, EAL,
"Service cores parsed before dataplane cores. Please ensure -l is before -s or -S\n");
if (eal_parse_corelist(optarg, lcore_indexes) < 0) {
RTE_LOG(ERR, EAL, "invalid core list syntax\n");
return -1;
}
if (update_lcore_config(lcore_indexes) < 0) {
char *available = available_cores();
RTE_LOG(ERR, EAL,
"invalid core list, please check specified cores are part of %s\n",
available);
free(available);
return -1;
}
if (core_parsed) {
RTE_LOG(ERR, EAL, "Option -l is ignored, because (%s) is set!\n",
(core_parsed == LCORE_OPT_MSK) ? "-c" :
(core_parsed == LCORE_OPT_MAP) ? "--lcore" :
"-l");
return -1;
}
core_parsed = LCORE_OPT_LST;
break;
}
/* service coremask */
case 's':
if (eal_parse_service_coremask(optarg) < 0) {
RTE_LOG(ERR, EAL, "invalid service coremask\n");
return -1;
}
break;
/* service corelist */
case 'S':
if (eal_parse_service_corelist(optarg) < 0) {
RTE_LOG(ERR, EAL, "invalid service core list\n");
return -1;
}
break;
/* size of memory */
case 'm':
conf->memory = atoi(optarg);
conf->memory *= 1024ULL;
conf->memory *= 1024ULL;
mem_parsed = 1;
break;
/* force number of channels */
case 'n':
conf->force_nchannel = atoi(optarg);
if (conf->force_nchannel == 0) {
RTE_LOG(ERR, EAL, "invalid channel number\n");
return -1;
}
break;
/* force number of ranks */
case 'r':
conf->force_nrank = atoi(optarg);
if (conf->force_nrank == 0 ||
conf->force_nrank > 16) {
RTE_LOG(ERR, EAL, "invalid rank number\n");
return -1;
}
break;
/* force loading of external driver */
case 'd':
if (eal_plugin_add(optarg) == -1)
return -1;
break;
case 'v':
/* since message is explicitly requested by user, we
* write message at highest log level so it can always
* be seen
* even if info or warning messages are disabled */
RTE_LOG(CRIT, EAL, "RTE Version: '%s'\n", rte_version());
break;
/* long options */
case OPT_HUGE_UNLINK_NUM:
if (eal_parse_huge_unlink(optarg, &conf->hugepage_file) < 0) {
RTE_LOG(ERR, EAL, "invalid --"OPT_HUGE_UNLINK" option\n");
return -1;
}
break;
case OPT_NO_HUGE_NUM:
conf->no_hugetlbfs = 1;
/* no-huge is legacy mem */
conf->legacy_mem = 1;
break;
case OPT_NO_PCI_NUM:
conf->no_pci = 1;
break;
case OPT_NO_HPET_NUM:
conf->no_hpet = 1;
break;
case OPT_VMWARE_TSC_MAP_NUM:
conf->vmware_tsc_map = 1;
break;
case OPT_NO_SHCONF_NUM:
conf->no_shconf = 1;
break;
case OPT_IN_MEMORY_NUM:
conf->in_memory = 1;
/* in-memory is a superset of noshconf and huge-unlink */
conf->no_shconf = 1;
conf->hugepage_file.unlink_before_mapping = true;
break;
case OPT_PROC_TYPE_NUM:
conf->process_type = eal_parse_proc_type(optarg);
break;
case OPT_MAIN_LCORE_NUM:
if (eal_parse_main_lcore(optarg) < 0) {
RTE_LOG(ERR, EAL, "invalid parameter for --"
OPT_MAIN_LCORE "\n");
return -1;
}
break;
case OPT_VDEV_NUM:
if (eal_option_device_add(RTE_DEVTYPE_VIRTUAL,
optarg) < 0) {
return -1;
}
break;
#ifndef RTE_EXEC_ENV_WINDOWS
case OPT_SYSLOG_NUM:
if (eal_parse_syslog(optarg, conf) < 0) {
RTE_LOG(ERR, EAL, "invalid parameters for --"
OPT_SYSLOG "\n");
return -1;
}
break;
#endif
case OPT_LOG_LEVEL_NUM: {
if (eal_parse_log_level(optarg) < 0) {
RTE_LOG(ERR, EAL,
"invalid parameters for --"
OPT_LOG_LEVEL "\n");
return -1;
}
break;
}
#ifndef RTE_EXEC_ENV_WINDOWS
case OPT_TRACE_NUM: {
if (eal_trace_args_save(optarg) < 0) {
RTE_LOG(ERR, EAL, "invalid parameters for --"
OPT_TRACE "\n");
return -1;
}
break;
}
case OPT_TRACE_DIR_NUM: {
if (eal_trace_dir_args_save(optarg) < 0) {
RTE_LOG(ERR, EAL, "invalid parameters for --"
OPT_TRACE_DIR "\n");
return -1;
}
break;
}
case OPT_TRACE_BUF_SIZE_NUM: {
if (eal_trace_bufsz_args_save(optarg) < 0) {
RTE_LOG(ERR, EAL, "invalid parameters for --"
OPT_TRACE_BUF_SIZE "\n");
return -1;
}
break;
}
case OPT_TRACE_MODE_NUM: {
if (eal_trace_mode_args_save(optarg) < 0) {
RTE_LOG(ERR, EAL, "invalid parameters for --"
OPT_TRACE_MODE "\n");
return -1;
}
break;
}
#endif /* !RTE_EXEC_ENV_WINDOWS */
case OPT_LCORES_NUM:
if (eal_parse_lcores(optarg) < 0) {
RTE_LOG(ERR, EAL, "invalid parameter for --"
OPT_LCORES "\n");
return -1;
}
if (core_parsed) {
RTE_LOG(ERR, EAL, "Option --lcore is ignored, because (%s) is set!\n",
(core_parsed == LCORE_OPT_LST) ? "-l" :
(core_parsed == LCORE_OPT_MSK) ? "-c" :
"--lcore");
return -1;
}
core_parsed = LCORE_OPT_MAP;
break;
case OPT_LEGACY_MEM_NUM:
conf->legacy_mem = 1;
break;
case OPT_SINGLE_FILE_SEGMENTS_NUM:
conf->single_file_segments = 1;
break;
case OPT_IOVA_MODE_NUM:
if (eal_parse_iova_mode(optarg) < 0) {
RTE_LOG(ERR, EAL, "invalid parameters for --"
OPT_IOVA_MODE "\n");
return -1;
}
break;
case OPT_BASE_VIRTADDR_NUM:
if (eal_parse_base_virtaddr(optarg) < 0) {
RTE_LOG(ERR, EAL, "invalid parameter for --"
OPT_BASE_VIRTADDR "\n");
return -1;
}
break;
case OPT_TELEMETRY_NUM:
break;
case OPT_NO_TELEMETRY_NUM:
conf->no_telemetry = 1;
break;
case OPT_FORCE_MAX_SIMD_BITWIDTH_NUM:
if (eal_parse_simd_bitwidth(optarg) < 0) {
RTE_LOG(ERR, EAL, "invalid parameter for --"
OPT_FORCE_MAX_SIMD_BITWIDTH "\n");
return -1;
}
break;
/* don't know what to do, leave this to caller */
default:
return 1;
}
return 0;
ba_conflict:
RTE_LOG(ERR, EAL,
"Options allow (-a) and block (-b) can't be used at the same time\n");
return -1;
}
static void
eal_auto_detect_cores(struct rte_config *cfg)
{
unsigned int lcore_id;
unsigned int removed = 0;
rte_cpuset_t affinity_set;
if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
&affinity_set))
CPU_ZERO(&affinity_set);
for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
if (cfg->lcore_role[lcore_id] == ROLE_RTE &&
!CPU_ISSET(lcore_id, &affinity_set)) {
cfg->lcore_role[lcore_id] = ROLE_OFF;
removed++;
}
}
cfg->lcore_count -= removed;
}
static void
compute_ctrl_threads_cpuset(struct internal_config *internal_cfg)
{
rte_cpuset_t *cpuset = &internal_cfg->ctrl_cpuset;
rte_cpuset_t default_set;
unsigned int lcore_id;
for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
if (rte_lcore_has_role(lcore_id, ROLE_OFF))
continue;
RTE_CPU_OR(cpuset, cpuset, &lcore_config[lcore_id].cpuset);
}
RTE_CPU_NOT(cpuset, cpuset);
if (pthread_getaffinity_np(pthread_self(), sizeof(rte_cpuset_t),
&default_set))
CPU_ZERO(&default_set);
RTE_CPU_AND(cpuset, cpuset, &default_set);
/* if no remaining cpu, use main lcore cpu affinity */
if (!CPU_COUNT(cpuset)) {
memcpy(cpuset, &lcore_config[rte_get_main_lcore()].cpuset,
sizeof(*cpuset));
}
}
int
eal_cleanup_config(struct internal_config *internal_cfg)
{
free(internal_cfg->hugefile_prefix);
free(internal_cfg->hugepage_dir);
free(internal_cfg->user_mbuf_pool_ops_name);
return 0;
}
int
eal_adjust_config(struct internal_config *internal_cfg)
{
int i;
struct rte_config *cfg = rte_eal_get_configuration();
struct internal_config *internal_conf =
eal_get_internal_configuration();
if (!core_parsed)
eal_auto_detect_cores(cfg);
if (internal_conf->process_type == RTE_PROC_AUTO)
internal_conf->process_type = eal_proc_type_detect();
/* default main lcore is the first one */
if (!main_lcore_parsed) {
cfg->main_lcore = rte_get_next_lcore(-1, 0, 0);
if (cfg->main_lcore >= RTE_MAX_LCORE)
return -1;
lcore_config[cfg->main_lcore].core_role = ROLE_RTE;
}
compute_ctrl_threads_cpuset(internal_cfg);
/* if no memory amounts were requested, this will result in 0 and
* will be overridden later, right after eal_hugepage_info_init() */
for (i = 0; i < RTE_MAX_NUMA_NODES; i++)
internal_cfg->memory += internal_cfg->socket_mem[i];
return 0;
}
int
eal_check_common_options(struct internal_config *internal_cfg)
{
struct rte_config *cfg = rte_eal_get_configuration();
const struct internal_config *internal_conf =
eal_get_internal_configuration();
if (cfg->lcore_role[cfg->main_lcore] != ROLE_RTE) {
RTE_LOG(ERR, EAL, "Main lcore is not enabled for DPDK\n");
return -1;
}
if (internal_cfg->process_type == RTE_PROC_INVALID) {
RTE_LOG(ERR, EAL, "Invalid process type specified\n");
return -1;
}
if (internal_cfg->hugefile_prefix != NULL &&
strlen(internal_cfg->hugefile_prefix) < 1) {
RTE_LOG(ERR, EAL, "Invalid length of --" OPT_FILE_PREFIX " option\n");
return -1;
}
if (internal_cfg->hugepage_dir != NULL &&
strlen(internal_cfg->hugepage_dir) < 1) {
RTE_LOG(ERR, EAL, "Invalid length of --" OPT_HUGE_DIR" option\n");
return -1;
}
if (internal_cfg->user_mbuf_pool_ops_name != NULL &&
strlen(internal_cfg->user_mbuf_pool_ops_name) < 1) {
RTE_LOG(ERR, EAL, "Invalid length of --" OPT_MBUF_POOL_OPS_NAME" option\n");
return -1;
}
if (strchr(eal_get_hugefile_prefix(), '%') != NULL) {
RTE_LOG(ERR, EAL, "Invalid char, '%%', in --"OPT_FILE_PREFIX" "
"option\n");
return -1;
}
if (mem_parsed && internal_cfg->force_sockets == 1) {
RTE_LOG(ERR, EAL, "Options -m and --"OPT_SOCKET_MEM" cannot "
"be specified at the same time\n");
return -1;
}
if (internal_cfg->no_hugetlbfs && internal_cfg->force_sockets == 1) {
RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_MEM" cannot "
"be specified together with --"OPT_NO_HUGE"\n");
return -1;
}
if (internal_cfg->no_hugetlbfs &&
internal_cfg->hugepage_file.unlink_before_mapping &&
!internal_cfg->in_memory) {
RTE_LOG(ERR, EAL, "Option --"OPT_HUGE_UNLINK" cannot "
"be specified together with --"OPT_NO_HUGE"\n");
return -1;
}
if (internal_cfg->no_hugetlbfs &&
internal_cfg->huge_worker_stack_size != 0) {
RTE_LOG(ERR, EAL, "Option --"OPT_HUGE_WORKER_STACK" cannot "
"be specified together with --"OPT_NO_HUGE"\n");
return -1;
}
if (internal_conf->force_socket_limits && internal_conf->legacy_mem) {
RTE_LOG(ERR, EAL, "Option --"OPT_SOCKET_LIMIT
" is only supported in non-legacy memory mode\n");
}
if (internal_cfg->single_file_segments &&
internal_cfg->hugepage_file.unlink_before_mapping &&
!internal_cfg->in_memory) {
RTE_LOG(ERR, EAL, "Option --"OPT_SINGLE_FILE_SEGMENTS" is "
"not compatible with --"OPT_HUGE_UNLINK"\n");
return -1;
}
if (!internal_cfg->hugepage_file.unlink_existing &&
internal_cfg->in_memory) {
RTE_LOG(ERR, EAL, "Option --"OPT_IN_MEMORY" is not compatible "
"with --"OPT_HUGE_UNLINK"="HUGE_UNLINK_NEVER"\n");
return -1;
}
if (internal_cfg->legacy_mem &&
internal_cfg->in_memory) {
RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
"with --"OPT_IN_MEMORY"\n");
return -1;
}
if (internal_cfg->legacy_mem && internal_cfg->match_allocations) {
RTE_LOG(ERR, EAL, "Option --"OPT_LEGACY_MEM" is not compatible "
"with --"OPT_MATCH_ALLOCATIONS"\n");
return -1;
}
if (internal_cfg->no_hugetlbfs && internal_cfg->match_allocations) {
RTE_LOG(ERR, EAL, "Option --"OPT_NO_HUGE" is not compatible "
"with --"OPT_MATCH_ALLOCATIONS"\n");
return -1;
}
if (internal_cfg->legacy_mem && internal_cfg->memory == 0) {
RTE_LOG(NOTICE, EAL, "Static memory layout is selected, "
"amount of reserved memory can be adjusted with "
"-m or --"OPT_SOCKET_MEM"\n");
}
return 0;
}
uint16_t
rte_vect_get_max_simd_bitwidth(void)
{
const struct internal_config *internal_conf =
eal_get_internal_configuration();
return internal_conf->max_simd_bitwidth.bitwidth;
}
int
rte_vect_set_max_simd_bitwidth(uint16_t bitwidth)
{
struct internal_config *internal_conf =
eal_get_internal_configuration();
if (internal_conf->max_simd_bitwidth.forced) {
RTE_LOG(NOTICE, EAL, "Cannot set max SIMD bitwidth - user runtime override enabled");
return -EPERM;
}
if (bitwidth < RTE_VECT_SIMD_DISABLED || !rte_is_power_of_2(bitwidth)) {
RTE_LOG(ERR, EAL, "Invalid bitwidth value!\n");
return -EINVAL;
}
internal_conf->max_simd_bitwidth.bitwidth = bitwidth;
return 0;
}
void
eal_common_usage(void)
{
printf("[options]\n\n"
"EAL common options:\n"
" -c COREMASK Hexadecimal bitmask of cores to run on\n"
" -l CORELIST List of cores to run on\n"
" The argument format is <c1>[-c2][,c3[-c4],...]\n"
" where c1, c2, etc are core indexes between 0 and %d\n"
" --"OPT_LCORES" COREMAP Map lcore set to physical cpu set\n"
" The argument format is\n"
" '<lcores[@cpus]>[<,lcores[@cpus]>...]'\n"
" lcores and cpus list are grouped by '(' and ')'\n"
" Within the group, '-' is used for range separator,\n"
" ',' is used for single number separator.\n"
" '( )' can be omitted for single element group,\n"
" '@' can be omitted if cpus and lcores have the same value\n"
" -s SERVICE COREMASK Hexadecimal bitmask of cores to be used as service cores\n"
" --"OPT_MAIN_LCORE" ID Core ID that is used as main\n"
" --"OPT_MBUF_POOL_OPS_NAME" Pool ops name for mbuf to use\n"
" -n CHANNELS Number of memory channels\n"
" -m MB Memory to allocate (see also --"OPT_SOCKET_MEM")\n"
" -r RANKS Force number of memory ranks (don't detect)\n"
" -b, --block Add a device to the blocked list.\n"
" Prevent EAL from using this device. The argument\n"
" format for PCI devices is <domain:bus:devid.func>.\n"
" -a, --allow Add a device to the allow list.\n"
" Only use the specified devices. The argument format\n"
" for PCI devices is <[domain:]bus:devid.func>.\n"
" This option can be present several times.\n"
" [NOTE: " OPT_DEV_ALLOW " cannot be used with "OPT_DEV_BLOCK" option]\n"
" --"OPT_VDEV" Add a virtual device.\n"
" The argument format is <driver><id>[,key=val,...]\n"
" (ex: --vdev=net_pcap0,iface=eth2).\n"
" --"OPT_IOVA_MODE" Set IOVA mode. 'pa' for IOVA_PA\n"
" 'va' for IOVA_VA\n"
" -d LIB.so|DIR Add a driver or driver directory\n"
" (can be used multiple times)\n"
" --"OPT_VMWARE_TSC_MAP" Use VMware TSC map instead of native RDTSC\n"
" --"OPT_PROC_TYPE" Type of this process (primary|secondary|auto)\n"
#ifndef RTE_EXEC_ENV_WINDOWS
" --"OPT_SYSLOG" Set syslog facility\n"
#endif
" --"OPT_LOG_LEVEL"=<level> Set global log level\n"
" --"OPT_LOG_LEVEL"=<type-match>:<level>\n"
" Set specific log level\n"
" --"OPT_LOG_LEVEL"=help Show log types and levels\n"
#ifndef RTE_EXEC_ENV_WINDOWS
" --"OPT_TRACE"=<regex-match>\n"
" Enable trace based on regular expression trace name.\n"
" By default, the trace is disabled.\n"
" User must specify this option to enable trace.\n"
" --"OPT_TRACE_DIR"=<directory path>\n"
" Specify trace directory for trace output.\n"
" By default, trace output will created at\n"
" $HOME directory and parameter must be\n"
" specified once only.\n"
" --"OPT_TRACE_BUF_SIZE"=<int>\n"
" Specify maximum size of allocated memory\n"
" for trace output for each thread. Valid\n"
" unit can be either 'B|K|M' for 'Bytes',\n"
" 'KBytes' and 'MBytes' respectively.\n"
" Default is 1MB and parameter must be\n"
" specified once only.\n"
" --"OPT_TRACE_MODE"=<o[verwrite] | d[iscard]>\n"
" Specify the mode of update of trace\n"
" output file. Either update on a file can\n"
" be wrapped or discarded when file size\n"
" reaches its maximum limit.\n"
" Default mode is 'overwrite' and parameter\n"
" must be specified once only.\n"
#endif /* !RTE_EXEC_ENV_WINDOWS */
" -v Display version information on startup\n"
" -h, --help This help\n"
" --"OPT_IN_MEMORY" Operate entirely in memory. This will\n"
" disable secondary process support\n"
" --"OPT_BASE_VIRTADDR" Base virtual address\n"
" --"OPT_TELEMETRY" Enable telemetry support (on by default)\n"
" --"OPT_NO_TELEMETRY" Disable telemetry support\n"
" --"OPT_FORCE_MAX_SIMD_BITWIDTH" Force the max SIMD bitwidth\n"
"\nEAL options for DEBUG use only:\n"
" --"OPT_HUGE_UNLINK"[=existing|always|never]\n"
" When to unlink files in hugetlbfs\n"
" ('existing' by default, no value means 'always')\n"
" --"OPT_NO_HUGE" Use malloc instead of hugetlbfs\n"
" --"OPT_NO_PCI" Disable PCI\n"
" --"OPT_NO_HPET" Disable HPET\n"
" --"OPT_NO_SHCONF" No shared config (mmap'd files)\n"
"\n", RTE_MAX_LCORE);
}
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