9e29251b2a
1. add two TLS *_socket_id* and *_cpuset* 2. add one internal API, eal_cpu_socket_id/eal_thread_dump_affinity 3. add two public API, rte_thread_set/get_affinity 4. update EAL version map for EAL public API The API works for both EAL thread and non EAL thread. When calling rte_thread_set_affinity, the *_socket_id* and *_cpuset* of calling thread will be updated if the thread successfully set the cpu affinity. Signed-off-by: Cunming Liang <cunming.liang@intel.com> Acked-by: Olivier Matz <olivier.matz@6wind.com> Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
101 lines
3.0 KiB
C
101 lines
3.0 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef EAL_THREAD_H
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#define EAL_THREAD_H
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#include <rte_lcore.h>
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/**
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* basic loop of thread, called for each thread by eal_init().
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*
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* @param arg
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* opaque pointer
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*/
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__attribute__((noreturn)) void *eal_thread_loop(void *arg);
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/**
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* Init per-lcore info for master thread
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*
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* @param lcore_id
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* identifier of master lcore
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*/
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void eal_thread_init_master(unsigned lcore_id);
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/**
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* Get the NUMA socket id from cpu id.
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* This function is private to EAL.
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*
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* @param cpu_id
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* The logical process id.
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* @return
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* socket_id or SOCKET_ID_ANY
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*/
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unsigned eal_cpu_socket_id(unsigned cpu_id);
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/**
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* Get the NUMA socket id from cpuset.
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* This function is private to EAL.
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*
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* @param cpusetp
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* The point to a valid cpu set.
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* @return
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* socket_id or SOCKET_ID_ANY
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*/
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int eal_cpuset_socket_id(rte_cpuset_t *cpusetp);
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/**
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* Default buffer size to use with eal_thread_dump_affinity()
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*/
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#define RTE_CPU_AFFINITY_STR_LEN 256
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/**
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* Dump the current pthread cpuset.
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* This function is private to EAL.
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*
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* Note:
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* If the dump size is greater than the size of given buffer,
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* the string will be truncated and with '\0' at the end.
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*
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* @param str
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* The string buffer the cpuset will dump to.
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* @param size
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* The string buffer size.
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* @return
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* 0 for success, -1 if truncation happens.
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*/
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int
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eal_thread_dump_affinity(char *str, unsigned size);
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#endif /* EAL_THREAD_H */
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