xref: /dpdk/lib/eal/common/eal_common_config.c (revision a4ce111cc89f580b8c4aad51bdb061acbdfde86b)

/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2020 Mellanox Technologies, Ltd
 */

#include <rte_string_fns.h>

#include "eal_private.h"
#include "eal_memcfg.h"

/* early configuration structure, when memory config is not mmapped */
static struct rte_mem_config early_mem_config = {
	.mlock = RTE_RWLOCK_INITIALIZER,
	.qlock = RTE_RWLOCK_INITIALIZER,
	.mplock = RTE_RWLOCK_INITIALIZER,
	.tlock = RTE_SPINLOCK_INITIALIZER,
	.ethdev_lock = RTE_SPINLOCK_INITIALIZER,
	.memory_hotplug_lock = RTE_RWLOCK_INITIALIZER,
};

/* Address of global and public configuration */
static struct rte_config rte_config = {
	.mem_config = &early_mem_config,
};

/* platform-specific runtime dir */
static char runtime_dir[PATH_MAX];

/* internal configuration */
static struct internal_config internal_config;

const char *
rte_eal_get_runtime_dir(void)
{
	return runtime_dir;
}

int
eal_set_runtime_dir(const char *run_dir)
{
	if (strlcpy(runtime_dir, run_dir, PATH_MAX) >= PATH_MAX) {
		EAL_LOG(ERR, "Runtime directory string too long");
		return -1;
	}

	return 0;
}

/* Return a pointer to the configuration structure */
struct rte_config *
rte_eal_get_configuration(void)
{
	return &rte_config;
}

/* Return a pointer to the internal configuration structure */
struct internal_config *
eal_get_internal_configuration(void)
{
	return &internal_config;
}

enum rte_iova_mode
rte_eal_iova_mode(void)
{
	return rte_eal_get_configuration()->iova_mode;
}

/* Get the EAL base address */
uint64_t
rte_eal_get_baseaddr(void)
{
	return (internal_config.base_virtaddr != 0) ?
		       (uint64_t) internal_config.base_virtaddr :
		       eal_get_baseaddr();
}

enum rte_proc_type_t
rte_eal_process_type(void)
{
	return rte_config.process_type;
}

/* Return user provided mbuf pool ops name */
const char *
rte_eal_mbuf_user_pool_ops(void)
{
	return internal_config.user_mbuf_pool_ops_name;
}

/* return non-zero if hugepages are enabled. */
int
rte_eal_has_hugepages(void)
{
	return !internal_config.no_hugetlbfs;
}

int
rte_eal_has_pci(void)
{
	return !internal_config.no_pci;
}