f2fc83b40f
There is a common macro __rte_unused, avoiding warnings, which is now used where appropriate for consistency. Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
109 lines
2.6 KiB
C
109 lines
2.6 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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#include <stdio.h>
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#include <stdint.h>
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#include <sys/queue.h>
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#include <rte_common.h>
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#include <rte_memory.h>
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#include <rte_per_lcore.h>
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#include <rte_launch.h>
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#include <rte_eal.h>
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#include <rte_lcore.h>
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#include <rte_cycles.h>
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#include "test.h"
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/*
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* Per-lcore variables and lcore launch
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* ====================================
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*
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* - Use ``rte_eal_mp_remote_launch()`` to call ``assign_vars()`` on
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* every available lcore. In this function, a per-lcore variable is
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* assigned to the lcore_id.
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*
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* - Use ``rte_eal_mp_remote_launch()`` to call ``display_vars()`` on
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* every available lcore. The function checks that the variable is
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* correctly set, or returns -1.
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*
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* - If at least one per-core variable was not correct, the test function
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* returns -1.
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*/
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static RTE_DEFINE_PER_LCORE(unsigned, test) = 0x12345678;
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static int
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assign_vars(__rte_unused void *arg)
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{
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if (RTE_PER_LCORE(test) != 0x12345678)
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return -1;
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RTE_PER_LCORE(test) = rte_lcore_id();
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return 0;
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}
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static int
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display_vars(__rte_unused void *arg)
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{
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unsigned lcore_id = rte_lcore_id();
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unsigned var = RTE_PER_LCORE(test);
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unsigned socket_id = rte_lcore_to_socket_id(lcore_id);
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printf("on socket %u, on core %u, variable is %u\n", socket_id, lcore_id, var);
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if (lcore_id != var)
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return -1;
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RTE_PER_LCORE(test) = 0x12345678;
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return 0;
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}
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static int
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test_per_lcore_delay(__rte_unused void *arg)
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{
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rte_delay_ms(100);
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printf("wait 100ms on lcore %u\n", rte_lcore_id());
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return 0;
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}
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static int
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test_per_lcore(void)
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{
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unsigned lcore_id;
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int ret;
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rte_eal_mp_remote_launch(assign_vars, NULL, SKIP_MASTER);
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RTE_LCORE_FOREACH_SLAVE(lcore_id) {
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if (rte_eal_wait_lcore(lcore_id) < 0)
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return -1;
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}
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rte_eal_mp_remote_launch(display_vars, NULL, SKIP_MASTER);
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RTE_LCORE_FOREACH_SLAVE(lcore_id) {
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if (rte_eal_wait_lcore(lcore_id) < 0)
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return -1;
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}
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/* test if it could do remote launch twice at the same time or not */
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ret = rte_eal_mp_remote_launch(test_per_lcore_delay, NULL, SKIP_MASTER);
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if (ret < 0) {
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printf("It fails to do remote launch but it should able to do\n");
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return -1;
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}
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/* it should not be able to launch a lcore which is running */
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ret = rte_eal_mp_remote_launch(test_per_lcore_delay, NULL, SKIP_MASTER);
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if (ret == 0) {
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printf("It does remote launch successfully but it should not at this time\n");
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return -1;
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}
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RTE_LCORE_FOREACH_SLAVE(lcore_id) {
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if (rte_eal_wait_lcore(lcore_id) < 0)
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return -1;
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}
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return 0;
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}
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REGISTER_TEST_COMMAND(per_lcore_autotest, test_per_lcore);
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