diff options
Diffstat (limited to 'lib/librte_eal/common/eal_thread.h')
-rw-r--r-- | lib/librte_eal/common/eal_thread.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/lib/librte_eal/common/eal_thread.h b/lib/librte_eal/common/eal_thread.h new file mode 100644 index 00000000..e4e76b9d --- /dev/null +++ b/lib/librte_eal/common/eal_thread.h @@ -0,0 +1,100 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef EAL_THREAD_H +#define EAL_THREAD_H + +#include <rte_lcore.h> + +/** + * basic loop of thread, called for each thread by eal_init(). + * + * @param arg + * opaque pointer + */ +__attribute__((noreturn)) void *eal_thread_loop(void *arg); + +/** + * Init per-lcore info for master thread + * + * @param lcore_id + * identifier of master lcore + */ +void eal_thread_init_master(unsigned lcore_id); + +/** + * Get the NUMA socket id from cpu id. + * This function is private to EAL. + * + * @param cpu_id + * The logical process id. + * @return + * socket_id or SOCKET_ID_ANY + */ +unsigned eal_cpu_socket_id(unsigned cpu_id); + +/** + * Get the NUMA socket id from cpuset. + * This function is private to EAL. + * + * @param cpusetp + * The point to a valid cpu set. + * @return + * socket_id or SOCKET_ID_ANY + */ +int eal_cpuset_socket_id(rte_cpuset_t *cpusetp); + +/** + * Default buffer size to use with eal_thread_dump_affinity() + */ +#define RTE_CPU_AFFINITY_STR_LEN 256 + +/** + * Dump the current pthread cpuset. + * This function is private to EAL. + * + * Note: + * If the dump size is greater than the size of given buffer, + * the string will be truncated and with '\0' at the end. + * + * @param str + * The string buffer the cpuset will dump to. + * @param size + * The string buffer size. + * @return + * 0 for success, -1 if truncation happens. + */ +int +eal_thread_dump_affinity(char *str, unsigned size); + +#endif /* EAL_THREAD_H */ |