e12a4f6ec8
This reverts commit 6194cb2e15.
It's unclear whether we need to add a new API for the env layer
for upcoming work. Nothing currently uses it. When we have a clear
need, we can add this back in.
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Change-Id: I174276799d650a1365b37a737271a54a796cd455
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/3561
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
109 lines
2.7 KiB
C
109 lines
2.7 KiB
C
/*-
|
|
* 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 "env_internal.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();
|
|
}
|