rte_lcore.h

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/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2010-2014 Intel Corporation
 */

#ifndef _RTE_LCORE_H_
#define _RTE_LCORE_H_

#include <stdio.h>

#include <rte_compat.h>
#include <rte_config.h>
#include <rte_per_lcore.h>
#include <rte_eal.h>
#include <rte_launch.h>
#include <rte_thread.h>

#ifdef __cplusplus
extern "C" {
#endif

#define LCORE_ID_ANY     UINT32_MAX       
RTE_DECLARE_PER_LCORE(unsigned, _lcore_id);  
enum rte_lcore_role_t {
    ROLE_RTE,
    ROLE_OFF,
    ROLE_SERVICE,
    ROLE_NON_EAL,
};

enum rte_lcore_role_t rte_eal_lcore_role(unsigned int lcore_id);

int
rte_lcore_has_role(unsigned int lcore_id, enum rte_lcore_role_t role);

static inline unsigned
rte_lcore_id(void)
{
    return RTE_PER_LCORE(_lcore_id);
}

unsigned int rte_get_main_lcore(void);

unsigned int rte_lcore_count(void);

int rte_lcore_index(int lcore_id);

unsigned int rte_socket_id(void);

unsigned int
rte_socket_count(void);

int
rte_socket_id_by_idx(unsigned int idx);

unsigned int
rte_lcore_to_socket_id(unsigned int lcore_id);

int rte_lcore_to_cpu_id(int lcore_id);

#ifdef RTE_HAS_CPUSET

rte_cpuset_t rte_lcore_cpuset(unsigned int lcore_id);

#endif /* RTE_HAS_CPUSET */

int rte_lcore_is_enabled(unsigned int lcore_id);

unsigned int rte_get_next_lcore(unsigned int i, int skip_main, int wrap);

#define RTE_LCORE_FOREACH(i)                        \
    for (i = rte_get_next_lcore(-1, 0, 0);              \
         i < RTE_MAX_LCORE;                     \
         i = rte_get_next_lcore(i, 0, 0))

#define RTE_LCORE_FOREACH_WORKER(i)                 \
    for (i = rte_get_next_lcore(-1, 1, 0);              \
         i < RTE_MAX_LCORE;                     \
         i = rte_get_next_lcore(i, 1, 0))

typedef int (*rte_lcore_init_cb)(unsigned int lcore_id, void *arg);

typedef void (*rte_lcore_uninit_cb)(unsigned int lcore_id, void *arg);

void *
rte_lcore_callback_register(const char *name, rte_lcore_init_cb init,
    rte_lcore_uninit_cb uninit, void *arg);

void
rte_lcore_callback_unregister(void *handle);

typedef int (*rte_lcore_iterate_cb)(unsigned int lcore_id, void *arg);

int
rte_lcore_iterate(rte_lcore_iterate_cb cb, void *arg);

struct rte_lcore_usage {
    uint64_t total_cycles;
    uint64_t busy_cycles;
};

typedef int (*rte_lcore_usage_cb)(unsigned int lcore_id, struct rte_lcore_usage *usage);

__rte_experimental
void rte_lcore_register_usage_cb(rte_lcore_usage_cb cb);

void
rte_lcore_dump(FILE *f);

int
rte_thread_register(void);

void
rte_thread_unregister(void);

#ifdef __cplusplus
}
#endif


#endif /* _RTE_LCORE_H_ */