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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2019 Intel Corporation
*/
#include <io.h>
#include <fcntl.h>
#include <rte_debug.h>
#include <rte_eal.h>
#include <rte_errno.h>
#include <rte_lcore.h>
#include <eal_thread.h>
#include <eal_private.h>
/* Address of global and public configuration */
static struct rte_config rte_config;
/* internal configuration (per-core) */
struct lcore_config lcore_config[RTE_MAX_LCORE];
/* Return a pointer to the configuration structure */
struct rte_config *
rte_eal_get_configuration(void)
{
return &rte_config;
}
static int
sync_func(void *arg __rte_unused)
{
return 0;
}
static void
rte_eal_init_alert(const char *msg)
{
fprintf(stderr, "EAL: FATAL: %s\n", msg);
RTE_LOG(ERR, EAL, "%s\n", msg);
}
/* Launch threads, called at application init(). */
int
rte_eal_init(int argc __rte_unused, char **argv __rte_unused)
{
int i;
/* create a map of all processors in the system */
eal_create_cpu_map();
if (rte_eal_cpu_init() < 0) {
rte_eal_init_alert("Cannot detect lcores.");
rte_errno = ENOTSUP;
return -1;
}
eal_thread_init_master(rte_config.master_lcore);
RTE_LCORE_FOREACH_SLAVE(i) {
/*
* create communication pipes between master thread
* and children
*/
if (_pipe(lcore_config[i].pipe_master2slave,
sizeof(char), _O_BINARY) < 0)
rte_panic("Cannot create pipe\n");
if (_pipe(lcore_config[i].pipe_slave2master,
sizeof(char), _O_BINARY) < 0)
rte_panic("Cannot create pipe\n");
lcore_config[i].state = WAIT;
/* create a thread for each lcore */
if (eal_thread_create(&lcore_config[i].thread_id) != 0)
rte_panic("Cannot create thread\n");
}
/*
* Launch a dummy function on all slave lcores, so that master lcore
* knows they are all ready when this function returns.
*/
rte_eal_mp_remote_launch(sync_func, NULL, SKIP_MASTER);
rte_eal_mp_wait_lcore();
return 0;
}
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