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/*-
* BSD LICENSE
*
* Copyright (c) Intel Corporation.
* 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.
*/
#include "spdk/env.h"
#include <rte_config.h>
#include <rte_lcore.h>
uint32_t
spdk_env_get_core_count(void)
{
return rte_lcore_count();
}
uint32_t
spdk_env_get_current_core(void)
{
return rte_lcore_id();
}
uint32_t
spdk_env_get_first_core(void)
{
return rte_get_next_lcore(-1, 0, 0);
}
uint32_t
spdk_env_get_last_core(void)
{
uint32_t i;
uint32_t last_core = UINT32_MAX;
SPDK_ENV_FOREACH_CORE(i) {
last_core = i;
}
assert(last_core != UINT32_MAX);
return last_core;
}
uint32_t
spdk_env_get_next_core(uint32_t prev_core)
{
unsigned lcore;
lcore = rte_get_next_lcore(prev_core, 0, 0);
if (lcore == RTE_MAX_LCORE) {
return UINT32_MAX;
}
return lcore;
}
uint32_t
spdk_env_get_socket_id(uint32_t core)
{
if (core >= RTE_MAX_LCORE) {
return SPDK_ENV_SOCKET_ID_ANY;
}
return rte_lcore_to_socket_id(core);
}
int
spdk_env_thread_launch_pinned(uint32_t core, thread_start_fn fn, void *arg)
{
int rc;
rc = rte_eal_remote_launch(fn, arg, core);
return rc;
}
void
spdk_env_thread_wait_all(void)
{
rte_eal_mp_wait_lcore();
}
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