2017-03-27 19:59:40 +00:00
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/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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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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2018-11-18 00:05:41 +00:00
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#include "env_internal.h"
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2017-03-27 19:59:40 +00:00
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#include <rte_config.h>
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#include <rte_lcore.h>
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uint32_t
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spdk_env_get_core_count(void)
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{
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return rte_lcore_count();
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}
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uint32_t
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spdk_env_get_current_core(void)
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{
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return rte_lcore_id();
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}
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uint32_t
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spdk_env_get_first_core(void)
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{
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return rte_get_next_lcore(-1, 0, 0);
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}
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2017-12-22 00:21:35 +00:00
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uint32_t
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spdk_env_get_last_core(void)
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{
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uint32_t i;
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2018-02-14 18:17:08 +00:00
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uint32_t last_core = UINT32_MAX;
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2017-12-22 00:21:35 +00:00
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SPDK_ENV_FOREACH_CORE(i) {
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last_core = i;
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}
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2018-02-22 03:02:05 +00:00
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assert(last_core != UINT32_MAX);
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2017-12-22 00:21:35 +00:00
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return last_core;
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}
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2017-03-27 19:59:40 +00:00
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uint32_t
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spdk_env_get_next_core(uint32_t prev_core)
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{
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unsigned lcore;
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lcore = rte_get_next_lcore(prev_core, 0, 0);
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if (lcore == RTE_MAX_LCORE) {
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return UINT32_MAX;
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}
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return lcore;
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}
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uint32_t
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spdk_env_get_socket_id(uint32_t core)
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{
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2018-09-08 21:18:05 +00:00
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if (core >= RTE_MAX_LCORE) {
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return SPDK_ENV_SOCKET_ID_ANY;
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}
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2017-03-27 19:59:40 +00:00
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return rte_lcore_to_socket_id(core);
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}
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2017-06-02 18:40:23 +00:00
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int
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spdk_env_thread_launch_pinned(uint32_t core, thread_start_fn fn, void *arg)
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{
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int rc;
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rc = rte_eal_remote_launch(fn, arg, core);
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return rc;
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}
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void
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spdk_env_thread_wait_all(void)
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{
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rte_eal_mp_wait_lcore();
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}
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