mirror of https://github.com/F-Stack/f-stack.git
92 lines
2.1 KiB
C
92 lines
2.1 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2010-2014 Intel Corporation
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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_common.h>
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#include <rte_lcore.h>
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/**
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* Basic loop of EAL thread, called for each worker thread by rte_eal_init().
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*
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* @param arg
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* The lcore_id (passed as an integer) of this worker thread.
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*/
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__rte_noreturn void *eal_thread_loop(void *arg);
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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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* 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 cpuset as a human readable string.
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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 cpuset
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* The CPU affinity object to dump.
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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(rte_cpuset_t *cpuset, char *str, unsigned int size);
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/**
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* Dump the current thread cpuset.
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* This is a wrapper on eal_thread_dump_affinity().
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*/
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int
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eal_thread_dump_current_affinity(char *str, unsigned int size);
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/**
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* Called by the main thread to wake up a worker in 'WAIT' state.
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* This function blocks until the worker acknowledge it started processing a
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* new command.
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* This function is private to EAL.
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*
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* @param worker_id
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* The lcore_id of a worker thread.
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* @return
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* 0 on success, negative errno on error
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*/
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int
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eal_thread_wake_worker(unsigned int worker_id);
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/**
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* Called by a worker thread to sleep after entering 'WAIT' state.
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* This function is private to EAL.
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*/
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void
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eal_thread_wait_command(void);
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/**
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* Called by a worker thread to acknowledge new command after leaving 'WAIT'
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* state.
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* This function is private to EAL.
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*/
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void
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eal_thread_ack_command(void);
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#endif /* EAL_THREAD_H */
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