Spdk/lib/env_dpdk/threads.c

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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright (C) 2017 Intel Corporation.
* All rights reserved.
*/
#include "env_internal.h"
#include <rte_config.h>
#include <rte_lcore.h>
uint32_t
spdk_env_get_core_count(void)
{
return rte_lcore_count();
}
uint32_t
spdk_env_get_current_core(void)
{
return rte_lcore_id();
}
uint32_t
spdk_env_get_main_core(void)
{
return rte_get_main_lcore();
}
uint32_t
spdk_env_get_first_core(void)
{
return rte_get_next_lcore(-1, 0, 0);
}
uint32_t
spdk_env_get_last_core(void)
{
uint32_t i;
uint32_t last_core = UINT32_MAX;
SPDK_ENV_FOREACH_CORE(i) {
last_core = i;
}
assert(last_core != UINT32_MAX);
return last_core;
}
uint32_t
spdk_env_get_next_core(uint32_t prev_core)
{
unsigned lcore;
lcore = rte_get_next_lcore(prev_core, 0, 0);
if (lcore == RTE_MAX_LCORE) {
return UINT32_MAX;
}
return lcore;
}
uint32_t
spdk_env_get_socket_id(uint32_t core)
{
if (core >= RTE_MAX_LCORE) {
return SPDK_ENV_SOCKET_ID_ANY;
}
return rte_lcore_to_socket_id(core);
}
int
spdk_env_thread_launch_pinned(uint32_t core, thread_start_fn fn, void *arg)
{
int rc;
rc = rte_eal_remote_launch(fn, arg, core);
return rc;
}
void
spdk_env_thread_wait_all(void)
{
rte_eal_mp_wait_lcore();
}