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/*
* Copyright (c) 2014 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef OVS_NUMA_H
#define OVS_NUMA_H 1
#include <limits.h>
#include <stdbool.h>
#include "compiler.h"
#define OVS_CORE_UNSPEC INT_MAX
#define OVS_NUMA_UNSPEC INT_MAX
#ifdef __linux__
void ovs_numa_init(void);
bool ovs_numa_numa_id_is_valid(int numa_id);
bool ovs_numa_core_id_is_valid(int core_id);
int ovs_numa_get_n_numas(void);
int ovs_numa_get_n_cores(void);
int ovs_numa_get_n_cores_on_numa(int numa_id);
int ovs_numa_get_n_unpinned_cores_on_numa(int numa_id);
bool ovs_numa_try_pin_core_specific(int core_id);
int ovs_numa_get_unpinned_core_any(void);
int ovs_numa_get_unpinned_core_on_numa(int numa_id);
void ovs_numa_unpin_core(int core_id);
#else
static inline void
ovs_numa_init(void)
{
/* Nothing */
}
static inline bool
ovs_numa_numa_id_is_valid(int numa_id OVS_UNUSED)
{
return false;
}
static inline bool
ovs_numa_core_id_is_valid(int core_id OVS_UNUSED)
{
return false;
}
static inline int
ovs_numa_get_n_numas(void)
{
return OVS_NUMA_UNSPEC;
}
static inline int
ovs_numa_get_n_cores(void)
{
return OVS_CORE_UNSPEC;
}
static inline int
ovs_numa_get_n_cores_on_numa(int numa_id OVS_UNUSED)
{
return OVS_CORE_UNSPEC;
}
static inline int
ovs_numa_get_n_unpinned_cores_on_numa(int numa_id OVS_UNUSED)
{
return OVS_CORE_UNSPEC;
}
static inline bool
ovs_numa_try_pin_core_specific(int core_id OVS_UNUSED)
{
return false;
}
static inline int
ovs_numa_get_unpinned_core_any(void)
{
return OVS_CORE_UNSPEC;
}
static inline int
ovs_numa_get_unpinned_core_on_numa(int numa_id OVS_UNUSED)
{
return OVS_CORE_UNSPEC;
}
static inline void
ovs_numa_unpin_core(int core_id OVS_UNUSED)
{
/* Nothing */
}
#endif /* __linux__ */
#endif /* ovs-thead.h */
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