mirror of
https://github.com/openvswitch/ovs
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ea58c9699c
ovs-numa doesn't need to keep the state of the pmd threads, it is an implementation detail of dpif-netdev. Signed-off-by: Daniele Di Proietto <diproiettod@vmware.com> Acked-by: Ilya Maximets <i.maximets@samsung.com>
73 lines
2.2 KiB
C
73 lines
2.2 KiB
C
/*
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* Copyright (c) 2014 Nicira, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef OVS_NUMA_H
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#define OVS_NUMA_H 1
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#include <limits.h>
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#include <stdbool.h>
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#include "compiler.h"
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#include "openvswitch/hmap.h"
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#define OVS_CORE_UNSPEC INT_MAX
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#define OVS_NUMA_UNSPEC INT_MAX
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/* Dump of a list of 'struct ovs_numa_info'. */
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struct ovs_numa_dump {
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struct hmap cores;
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struct hmap numas;
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};
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/* A numa_id - core_id pair. */
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struct ovs_numa_info_core {
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struct hmap_node hmap_node;
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int numa_id;
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unsigned core_id;
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};
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/* A numa node. */
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struct ovs_numa_info_numa {
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struct hmap_node hmap_node;
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int numa_id;
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size_t n_cores;
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};
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void ovs_numa_init(void);
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void ovs_numa_set_dummy(const char *dummy_config);
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bool ovs_numa_numa_id_is_valid(int numa_id);
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bool ovs_numa_core_id_is_valid(unsigned core_id);
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int ovs_numa_get_n_numas(void);
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int ovs_numa_get_n_cores(void);
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int ovs_numa_get_numa_id(unsigned core_id);
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int ovs_numa_get_n_cores_on_numa(int numa_id);
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struct ovs_numa_dump *ovs_numa_dump_cores_on_numa(int numa_id);
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struct ovs_numa_dump *ovs_numa_dump_cores_with_cmask(const char *cmask);
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struct ovs_numa_dump *ovs_numa_dump_n_cores_per_numa(int n);
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bool ovs_numa_dump_contains_core(const struct ovs_numa_dump *,
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int numa_id, unsigned core_id);
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size_t ovs_numa_dump_count(const struct ovs_numa_dump *);
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void ovs_numa_dump_destroy(struct ovs_numa_dump *);
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int ovs_numa_thread_setaffinity_core(unsigned core_id);
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#define FOR_EACH_CORE_ON_DUMP(ITER, DUMP) \
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HMAP_FOR_EACH((ITER), hmap_node, &(DUMP)->cores)
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#define FOR_EACH_NUMA_ON_DUMP(ITER, DUMP) \
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HMAP_FOR_EACH((ITER), hmap_node, &(DUMP)->numas)
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#endif /* ovs-numa.h */
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