1b32cc619b
If the RTE_MAX_LCORE is less than 10, a compilation error is generated:
app/test/test_rcu_qsbr.c:234:10: error: comparison of integer
expressions of different signedness: ‘unsigned int’ and ‘int’
[-Werror=sign-compare]
The cause is (RTE_MAX_LCORE - 10) results in a negative value.
To fix, use rte_rand() to find a number between 0 and RTE_MAX_LCORE.
Fixes: b87089b0bb
("test/rcu: add API and functional tests")
Cc: stable@dpdk.org
Signed-off-by: Gavin Hu <gavin.hu@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Reviewed-by: Steve Capper <steve.capper@arm.com>
Reviewed-by: Dharmik Thakkar <dharmik.thakkar@arm.com>
1051 lines
26 KiB
C
1051 lines
26 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright (c) 2018 Arm Limited
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*/
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#include <stdio.h>
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#include <rte_pause.h>
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#include <rte_rcu_qsbr.h>
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#include <rte_hash.h>
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#include <rte_hash_crc.h>
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#include <rte_malloc.h>
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#include <rte_cycles.h>
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#include <rte_random.h>
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#include <unistd.h>
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#include "test.h"
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/* Check condition and return an error if true. */
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#define TEST_RCU_QSBR_RETURN_IF_ERROR(cond, str, ...) do { \
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if (cond) { \
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printf("ERROR file %s, line %d: " str "\n", __FILE__, \
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__LINE__, ##__VA_ARGS__); \
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return -1; \
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} \
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} while (0)
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/* Make sure that this has the same value as __RTE_QSBR_CNT_INIT */
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#define TEST_RCU_QSBR_CNT_INIT 1
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static uint16_t enabled_core_ids[RTE_MAX_LCORE];
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static unsigned int num_cores;
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static uint32_t *keys;
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#define TOTAL_ENTRY (1024 * 8)
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#define COUNTER_VALUE 4096
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static uint32_t *hash_data[RTE_MAX_LCORE][TOTAL_ENTRY];
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static uint8_t writer_done;
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static struct rte_rcu_qsbr *t[RTE_MAX_LCORE];
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static struct rte_hash *h[RTE_MAX_LCORE];
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static char hash_name[RTE_MAX_LCORE][8];
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struct test_rcu_thread_info {
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/* Index in RCU array */
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int ir;
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/* Index in hash array */
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int ih;
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/* lcore IDs registered on the RCU variable */
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uint16_t r_core_ids[2];
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};
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static struct test_rcu_thread_info thread_info[RTE_MAX_LCORE/4];
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static int
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alloc_rcu(void)
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{
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int i;
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size_t sz;
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sz = rte_rcu_qsbr_get_memsize(RTE_MAX_LCORE);
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for (i = 0; i < RTE_MAX_LCORE; i++)
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t[i] = (struct rte_rcu_qsbr *)rte_zmalloc(NULL, sz,
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RTE_CACHE_LINE_SIZE);
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return 0;
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}
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static int
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free_rcu(void)
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{
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int i;
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for (i = 0; i < RTE_MAX_LCORE; i++)
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rte_free(t[i]);
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return 0;
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}
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/*
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* rte_rcu_qsbr_thread_register: Add a reader thread, to the list of threads
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* reporting their quiescent state on a QS variable.
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*/
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static int
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test_rcu_qsbr_get_memsize(void)
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{
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size_t sz;
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printf("\nTest rte_rcu_qsbr_thread_register()\n");
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sz = rte_rcu_qsbr_get_memsize(0);
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TEST_RCU_QSBR_RETURN_IF_ERROR((sz != 1), "Get Memsize for 0 threads");
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sz = rte_rcu_qsbr_get_memsize(128);
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/* For 128 threads,
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* for machines with cache line size of 64B - 8384
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* for machines with cache line size of 128 - 16768
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*/
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if (RTE_CACHE_LINE_SIZE == 64)
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TEST_RCU_QSBR_RETURN_IF_ERROR((sz != 8384),
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"Get Memsize for 128 threads");
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else if (RTE_CACHE_LINE_SIZE == 128)
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TEST_RCU_QSBR_RETURN_IF_ERROR((sz != 16768),
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"Get Memsize for 128 threads");
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return 0;
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}
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/*
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* rte_rcu_qsbr_init: Initialize a QSBR variable.
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*/
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static int
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test_rcu_qsbr_init(void)
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{
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int r;
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printf("\nTest rte_rcu_qsbr_init()\n");
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r = rte_rcu_qsbr_init(NULL, RTE_MAX_LCORE);
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TEST_RCU_QSBR_RETURN_IF_ERROR((r != 1), "NULL variable");
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return 0;
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}
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/*
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* rte_rcu_qsbr_thread_register: Add a reader thread, to the list of threads
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* reporting their quiescent state on a QS variable.
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*/
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static int
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test_rcu_qsbr_thread_register(void)
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{
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int ret;
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printf("\nTest rte_rcu_qsbr_thread_register()\n");
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ret = rte_rcu_qsbr_thread_register(NULL, enabled_core_ids[0]);
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0), "NULL variable check");
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ret = rte_rcu_qsbr_thread_register(NULL, 100000);
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0),
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"NULL variable, invalid thread id");
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rte_rcu_qsbr_init(t[0], RTE_MAX_LCORE);
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/* Register valid thread id */
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ret = rte_rcu_qsbr_thread_register(t[0], enabled_core_ids[0]);
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 1), "Valid thread id");
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/* Re-registering should not return error */
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ret = rte_rcu_qsbr_thread_register(t[0], enabled_core_ids[0]);
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 1),
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"Already registered thread id");
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/* Register valid thread id - max allowed thread id */
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ret = rte_rcu_qsbr_thread_register(t[0], RTE_MAX_LCORE - 1);
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 1), "Max thread id");
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ret = rte_rcu_qsbr_thread_register(t[0], 100000);
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0),
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"NULL variable, invalid thread id");
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return 0;
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}
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/*
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* rte_rcu_qsbr_thread_unregister: Remove a reader thread, from the list of
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* threads reporting their quiescent state on a QS variable.
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*/
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static int
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test_rcu_qsbr_thread_unregister(void)
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{
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unsigned int num_threads[3] = {1, RTE_MAX_LCORE, 1};
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unsigned int i, j;
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unsigned int skip_thread_id;
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uint64_t token;
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int ret;
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printf("\nTest rte_rcu_qsbr_thread_unregister()\n");
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ret = rte_rcu_qsbr_thread_unregister(NULL, enabled_core_ids[0]);
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0), "NULL variable check");
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ret = rte_rcu_qsbr_thread_unregister(NULL, 100000);
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0),
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"NULL variable, invalid thread id");
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rte_rcu_qsbr_init(t[0], RTE_MAX_LCORE);
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rte_rcu_qsbr_thread_register(t[0], enabled_core_ids[0]);
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ret = rte_rcu_qsbr_thread_unregister(t[0], 100000);
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0),
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"NULL variable, invalid thread id");
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/* Find first disabled core */
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for (i = 0; i < RTE_MAX_LCORE; i++) {
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if (enabled_core_ids[i] == 0)
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break;
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}
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/* Test with disabled lcore */
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ret = rte_rcu_qsbr_thread_unregister(t[0], i);
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 1),
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"disabled thread id");
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/* Unregister already unregistered core */
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ret = rte_rcu_qsbr_thread_unregister(t[0], i);
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 1),
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"Already unregistered core");
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/* Test with enabled lcore */
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ret = rte_rcu_qsbr_thread_unregister(t[0], enabled_core_ids[0]);
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 1),
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"enabled thread id");
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/* Unregister already unregistered core */
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ret = rte_rcu_qsbr_thread_unregister(t[0], enabled_core_ids[0]);
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 1),
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"Already unregistered core");
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/*
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* Test with different thread_ids:
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* 1 - thread_id = 0
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* 2 - All possible thread_ids, from 0 to RTE_MAX_LCORE
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* 3 - thread_id = RTE_MAX_LCORE - 1
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*/
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for (j = 0; j < 3; j++) {
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rte_rcu_qsbr_init(t[0], RTE_MAX_LCORE);
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for (i = 0; i < num_threads[j]; i++)
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rte_rcu_qsbr_thread_register(t[0],
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(j == 2) ? (RTE_MAX_LCORE - 1) : i);
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token = rte_rcu_qsbr_start(t[0]);
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TEST_RCU_QSBR_RETURN_IF_ERROR(
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(token != (TEST_RCU_QSBR_CNT_INIT + 1)), "QSBR Start");
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skip_thread_id = rte_rand() % RTE_MAX_LCORE;
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/* Update quiescent state counter */
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for (i = 0; i < num_threads[j]; i++) {
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/* Skip one update */
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if ((j == 1) && (i == skip_thread_id))
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continue;
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rte_rcu_qsbr_quiescent(t[0],
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(j == 2) ? (RTE_MAX_LCORE - 1) : i);
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}
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if (j == 1) {
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/* Validate the updates */
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ret = rte_rcu_qsbr_check(t[0], token, false);
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0),
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"Non-blocking QSBR check");
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/* Update the previously skipped thread */
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rte_rcu_qsbr_quiescent(t[0], skip_thread_id);
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}
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/* Validate the updates */
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ret = rte_rcu_qsbr_check(t[0], token, false);
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0),
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"Non-blocking QSBR check");
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for (i = 0; i < num_threads[j]; i++)
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rte_rcu_qsbr_thread_unregister(t[0],
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(j == 2) ? (RTE_MAX_LCORE - 1) : i);
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/* Check with no thread registered */
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ret = rte_rcu_qsbr_check(t[0], token, true);
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0),
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"Blocking QSBR check");
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}
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return 0;
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}
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/*
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* rte_rcu_qsbr_start: Ask the worker threads to report the quiescent state
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* status.
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*/
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static int
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test_rcu_qsbr_start(void)
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{
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uint64_t token;
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int i;
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printf("\nTest rte_rcu_qsbr_start()\n");
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rte_rcu_qsbr_init(t[0], RTE_MAX_LCORE);
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for (i = 0; i < 3; i++)
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rte_rcu_qsbr_thread_register(t[0], enabled_core_ids[i]);
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token = rte_rcu_qsbr_start(t[0]);
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TEST_RCU_QSBR_RETURN_IF_ERROR(
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(token != (TEST_RCU_QSBR_CNT_INIT + 1)), "QSBR Start");
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return 0;
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}
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static int
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test_rcu_qsbr_check_reader(void *arg)
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{
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struct rte_rcu_qsbr *temp;
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uint8_t read_type = (uint8_t)((uintptr_t)arg);
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temp = t[read_type];
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/* Update quiescent state counter */
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rte_rcu_qsbr_quiescent(temp, enabled_core_ids[0]);
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rte_rcu_qsbr_quiescent(temp, enabled_core_ids[1]);
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rte_rcu_qsbr_thread_unregister(temp, enabled_core_ids[2]);
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rte_rcu_qsbr_quiescent(temp, enabled_core_ids[3]);
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return 0;
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}
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/*
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* rte_rcu_qsbr_check: Checks if all the worker threads have entered the queis-
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* cent state 'n' number of times. 'n' is provided in rte_rcu_qsbr_start API.
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*/
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static int
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test_rcu_qsbr_check(void)
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{
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int i, ret;
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uint64_t token;
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printf("\nTest rte_rcu_qsbr_check()\n");
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rte_rcu_qsbr_init(t[0], RTE_MAX_LCORE);
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token = rte_rcu_qsbr_start(t[0]);
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TEST_RCU_QSBR_RETURN_IF_ERROR(
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(token != (TEST_RCU_QSBR_CNT_INIT + 1)), "QSBR Start");
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ret = rte_rcu_qsbr_check(t[0], 0, false);
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0), "Token = 0");
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ret = rte_rcu_qsbr_check(t[0], token, true);
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0), "Blocking QSBR check");
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for (i = 0; i < 3; i++)
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rte_rcu_qsbr_thread_register(t[0], enabled_core_ids[i]);
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ret = rte_rcu_qsbr_check(t[0], token, false);
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/* Threads are offline, hence this should pass */
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0), "Non-blocking QSBR check");
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token = rte_rcu_qsbr_start(t[0]);
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TEST_RCU_QSBR_RETURN_IF_ERROR(
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(token != (TEST_RCU_QSBR_CNT_INIT + 2)), "QSBR Start");
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ret = rte_rcu_qsbr_check(t[0], token, false);
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/* Threads are offline, hence this should pass */
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0), "Non-blocking QSBR check");
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for (i = 0; i < 3; i++)
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rte_rcu_qsbr_thread_unregister(t[0], enabled_core_ids[i]);
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ret = rte_rcu_qsbr_check(t[0], token, true);
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0), "Blocking QSBR check");
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rte_rcu_qsbr_init(t[0], RTE_MAX_LCORE);
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for (i = 0; i < 4; i++)
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rte_rcu_qsbr_thread_register(t[0], enabled_core_ids[i]);
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token = rte_rcu_qsbr_start(t[0]);
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TEST_RCU_QSBR_RETURN_IF_ERROR(
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(token != (TEST_RCU_QSBR_CNT_INIT + 1)), "QSBR Start");
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rte_eal_remote_launch(test_rcu_qsbr_check_reader, NULL,
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enabled_core_ids[0]);
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rte_eal_mp_wait_lcore();
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ret = rte_rcu_qsbr_check(t[0], token, true);
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TEST_RCU_QSBR_RETURN_IF_ERROR((ret != 1), "Blocking QSBR check");
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return 0;
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}
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static int
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test_rcu_qsbr_synchronize_reader(void *arg)
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{
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uint32_t lcore_id = rte_lcore_id();
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(void)arg;
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/* Register and become online */
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rte_rcu_qsbr_thread_register(t[0], lcore_id);
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rte_rcu_qsbr_thread_online(t[0], lcore_id);
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while (!writer_done)
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rte_rcu_qsbr_quiescent(t[0], lcore_id);
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rte_rcu_qsbr_thread_offline(t[0], lcore_id);
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rte_rcu_qsbr_thread_unregister(t[0], lcore_id);
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return 0;
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}
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/*
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* rte_rcu_qsbr_synchronize: Wait till all the reader threads have entered
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* the queiscent state.
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*/
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static int
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test_rcu_qsbr_synchronize(void)
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{
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unsigned int i;
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printf("\nTest rte_rcu_qsbr_synchronize()\n");
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rte_rcu_qsbr_init(t[0], RTE_MAX_LCORE);
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/* Test if the API returns when there are no threads reporting
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* QS on the variable.
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*/
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rte_rcu_qsbr_synchronize(t[0], RTE_QSBR_THRID_INVALID);
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/* Test if the API returns when there are threads registered
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* but not online.
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*/
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for (i = 0; i < RTE_MAX_LCORE; i++)
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rte_rcu_qsbr_thread_register(t[0], i);
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rte_rcu_qsbr_synchronize(t[0], RTE_QSBR_THRID_INVALID);
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/* Test if the API returns when the caller is also
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* reporting the QS status.
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*/
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rte_rcu_qsbr_thread_online(t[0], 0);
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rte_rcu_qsbr_synchronize(t[0], 0);
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rte_rcu_qsbr_thread_offline(t[0], 0);
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/* Check the other boundary */
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rte_rcu_qsbr_thread_online(t[0], RTE_MAX_LCORE - 1);
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rte_rcu_qsbr_synchronize(t[0], RTE_MAX_LCORE - 1);
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rte_rcu_qsbr_thread_offline(t[0], RTE_MAX_LCORE - 1);
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/* Test if the API returns after unregisterng all the threads */
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for (i = 0; i < RTE_MAX_LCORE; i++)
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rte_rcu_qsbr_thread_unregister(t[0], i);
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rte_rcu_qsbr_synchronize(t[0], RTE_QSBR_THRID_INVALID);
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/* Test if the API returns with the live threads */
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writer_done = 0;
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for (i = 0; i < num_cores; i++)
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rte_eal_remote_launch(test_rcu_qsbr_synchronize_reader,
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NULL, enabled_core_ids[i]);
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rte_rcu_qsbr_synchronize(t[0], RTE_QSBR_THRID_INVALID);
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rte_rcu_qsbr_synchronize(t[0], RTE_QSBR_THRID_INVALID);
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rte_rcu_qsbr_synchronize(t[0], RTE_QSBR_THRID_INVALID);
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rte_rcu_qsbr_synchronize(t[0], RTE_QSBR_THRID_INVALID);
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rte_rcu_qsbr_synchronize(t[0], RTE_QSBR_THRID_INVALID);
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writer_done = 1;
|
|
rte_eal_mp_wait_lcore();
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* rte_rcu_qsbr_thread_online: Add a registered reader thread, to
|
|
* the list of threads reporting their quiescent state on a QS variable.
|
|
*/
|
|
static int
|
|
test_rcu_qsbr_thread_online(void)
|
|
{
|
|
int i, ret;
|
|
uint64_t token;
|
|
|
|
printf("Test rte_rcu_qsbr_thread_online()\n");
|
|
|
|
rte_rcu_qsbr_init(t[0], RTE_MAX_LCORE);
|
|
|
|
/* Register 2 threads to validate that only the
|
|
* online thread is waited upon.
|
|
*/
|
|
rte_rcu_qsbr_thread_register(t[0], enabled_core_ids[0]);
|
|
rte_rcu_qsbr_thread_register(t[0], enabled_core_ids[1]);
|
|
|
|
/* Use qsbr_start to verify that the thread_online API
|
|
* succeeded.
|
|
*/
|
|
token = rte_rcu_qsbr_start(t[0]);
|
|
|
|
/* Make the thread online */
|
|
rte_rcu_qsbr_thread_online(t[0], enabled_core_ids[0]);
|
|
|
|
/* Check if the thread is online */
|
|
ret = rte_rcu_qsbr_check(t[0], token, true);
|
|
TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0), "thread online");
|
|
|
|
/* Check if the online thread, can report QS */
|
|
token = rte_rcu_qsbr_start(t[0]);
|
|
rte_rcu_qsbr_quiescent(t[0], enabled_core_ids[0]);
|
|
ret = rte_rcu_qsbr_check(t[0], token, true);
|
|
TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0), "thread update");
|
|
|
|
/* Make all the threads online */
|
|
rte_rcu_qsbr_init(t[0], RTE_MAX_LCORE);
|
|
token = rte_rcu_qsbr_start(t[0]);
|
|
for (i = 0; i < RTE_MAX_LCORE; i++) {
|
|
rte_rcu_qsbr_thread_register(t[0], i);
|
|
rte_rcu_qsbr_thread_online(t[0], i);
|
|
}
|
|
/* Check if all the threads are online */
|
|
ret = rte_rcu_qsbr_check(t[0], token, true);
|
|
TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0), "thread online");
|
|
/* Check if all the online threads can report QS */
|
|
token = rte_rcu_qsbr_start(t[0]);
|
|
for (i = 0; i < RTE_MAX_LCORE; i++)
|
|
rte_rcu_qsbr_quiescent(t[0], i);
|
|
ret = rte_rcu_qsbr_check(t[0], token, true);
|
|
TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0), "thread update");
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* rte_rcu_qsbr_thread_offline: Remove a registered reader thread, from
|
|
* the list of threads reporting their quiescent state on a QS variable.
|
|
*/
|
|
static int
|
|
test_rcu_qsbr_thread_offline(void)
|
|
{
|
|
int i, ret;
|
|
uint64_t token;
|
|
|
|
printf("\nTest rte_rcu_qsbr_thread_offline()\n");
|
|
|
|
rte_rcu_qsbr_init(t[0], RTE_MAX_LCORE);
|
|
|
|
rte_rcu_qsbr_thread_register(t[0], enabled_core_ids[0]);
|
|
|
|
/* Make the thread offline */
|
|
rte_rcu_qsbr_thread_offline(t[0], enabled_core_ids[0]);
|
|
|
|
/* Use qsbr_start to verify that the thread_offline API
|
|
* succeeded.
|
|
*/
|
|
token = rte_rcu_qsbr_start(t[0]);
|
|
/* Check if the thread is offline */
|
|
ret = rte_rcu_qsbr_check(t[0], token, true);
|
|
TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0), "thread offline");
|
|
|
|
/* Bring an offline thread online and check if it can
|
|
* report QS.
|
|
*/
|
|
rte_rcu_qsbr_thread_online(t[0], enabled_core_ids[0]);
|
|
/* Check if the online thread, can report QS */
|
|
token = rte_rcu_qsbr_start(t[0]);
|
|
rte_rcu_qsbr_quiescent(t[0], enabled_core_ids[0]);
|
|
ret = rte_rcu_qsbr_check(t[0], token, true);
|
|
TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0), "offline to online");
|
|
|
|
/*
|
|
* Check a sequence of online/status/offline/status/online/status
|
|
*/
|
|
rte_rcu_qsbr_init(t[0], RTE_MAX_LCORE);
|
|
token = rte_rcu_qsbr_start(t[0]);
|
|
/* Make the threads online */
|
|
for (i = 0; i < RTE_MAX_LCORE; i++) {
|
|
rte_rcu_qsbr_thread_register(t[0], i);
|
|
rte_rcu_qsbr_thread_online(t[0], i);
|
|
}
|
|
|
|
/* Check if all the threads are online */
|
|
ret = rte_rcu_qsbr_check(t[0], token, true);
|
|
TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0), "thread online");
|
|
|
|
/* Check if all the online threads can report QS */
|
|
token = rte_rcu_qsbr_start(t[0]);
|
|
for (i = 0; i < RTE_MAX_LCORE; i++)
|
|
rte_rcu_qsbr_quiescent(t[0], i);
|
|
ret = rte_rcu_qsbr_check(t[0], token, true);
|
|
TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0), "report QS");
|
|
|
|
/* Make all the threads offline */
|
|
for (i = 0; i < RTE_MAX_LCORE; i++)
|
|
rte_rcu_qsbr_thread_offline(t[0], i);
|
|
/* Make sure these threads are not being waited on */
|
|
token = rte_rcu_qsbr_start(t[0]);
|
|
ret = rte_rcu_qsbr_check(t[0], token, true);
|
|
TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0), "offline QS");
|
|
|
|
/* Make the threads online */
|
|
for (i = 0; i < RTE_MAX_LCORE; i++)
|
|
rte_rcu_qsbr_thread_online(t[0], i);
|
|
/* Check if all the online threads can report QS */
|
|
token = rte_rcu_qsbr_start(t[0]);
|
|
for (i = 0; i < RTE_MAX_LCORE; i++)
|
|
rte_rcu_qsbr_quiescent(t[0], i);
|
|
ret = rte_rcu_qsbr_check(t[0], token, true);
|
|
TEST_RCU_QSBR_RETURN_IF_ERROR((ret == 0), "online again");
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* rte_rcu_qsbr_dump: Dump status of a single QS variable to a file
|
|
*/
|
|
static int
|
|
test_rcu_qsbr_dump(void)
|
|
{
|
|
int i;
|
|
|
|
printf("\nTest rte_rcu_qsbr_dump()\n");
|
|
|
|
/* Negative tests */
|
|
rte_rcu_qsbr_dump(NULL, t[0]);
|
|
rte_rcu_qsbr_dump(stdout, NULL);
|
|
rte_rcu_qsbr_dump(NULL, NULL);
|
|
|
|
rte_rcu_qsbr_init(t[0], RTE_MAX_LCORE);
|
|
rte_rcu_qsbr_init(t[1], RTE_MAX_LCORE);
|
|
|
|
/* QS variable with 0 core mask */
|
|
rte_rcu_qsbr_dump(stdout, t[0]);
|
|
|
|
rte_rcu_qsbr_thread_register(t[0], enabled_core_ids[0]);
|
|
|
|
for (i = 1; i < 3; i++)
|
|
rte_rcu_qsbr_thread_register(t[1], enabled_core_ids[i]);
|
|
|
|
rte_rcu_qsbr_dump(stdout, t[0]);
|
|
rte_rcu_qsbr_dump(stdout, t[1]);
|
|
printf("\n");
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
test_rcu_qsbr_reader(void *arg)
|
|
{
|
|
struct rte_rcu_qsbr *temp;
|
|
struct rte_hash *hash = NULL;
|
|
int i;
|
|
uint32_t lcore_id = rte_lcore_id();
|
|
struct test_rcu_thread_info *ti;
|
|
uint32_t *pdata;
|
|
|
|
ti = (struct test_rcu_thread_info *)arg;
|
|
temp = t[ti->ir];
|
|
hash = h[ti->ih];
|
|
|
|
do {
|
|
rte_rcu_qsbr_thread_register(temp, lcore_id);
|
|
rte_rcu_qsbr_thread_online(temp, lcore_id);
|
|
for (i = 0; i < TOTAL_ENTRY; i++) {
|
|
rte_rcu_qsbr_lock(temp, lcore_id);
|
|
if (rte_hash_lookup_data(hash, keys+i,
|
|
(void **)&pdata) != -ENOENT) {
|
|
pdata[lcore_id] = 0;
|
|
while (pdata[lcore_id] < COUNTER_VALUE)
|
|
pdata[lcore_id]++;
|
|
}
|
|
rte_rcu_qsbr_unlock(temp, lcore_id);
|
|
}
|
|
/* Update quiescent state counter */
|
|
rte_rcu_qsbr_quiescent(temp, lcore_id);
|
|
rte_rcu_qsbr_thread_offline(temp, lcore_id);
|
|
rte_rcu_qsbr_thread_unregister(temp, lcore_id);
|
|
} while (!writer_done);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
test_rcu_qsbr_writer(void *arg)
|
|
{
|
|
uint64_t token;
|
|
int32_t i, pos, del;
|
|
uint32_t c;
|
|
struct rte_rcu_qsbr *temp;
|
|
struct rte_hash *hash = NULL;
|
|
struct test_rcu_thread_info *ti;
|
|
|
|
ti = (struct test_rcu_thread_info *)arg;
|
|
temp = t[ti->ir];
|
|
hash = h[ti->ih];
|
|
|
|
/* Delete element from the shared data structure */
|
|
del = rte_lcore_id() % TOTAL_ENTRY;
|
|
pos = rte_hash_del_key(hash, keys + del);
|
|
if (pos < 0) {
|
|
printf("Delete key failed #%d\n", keys[del]);
|
|
return -1;
|
|
}
|
|
/* Start the quiescent state query process */
|
|
token = rte_rcu_qsbr_start(temp);
|
|
/* Check the quiescent state status */
|
|
rte_rcu_qsbr_check(temp, token, true);
|
|
for (i = 0; i < 2; i++) {
|
|
c = hash_data[ti->ih][del][ti->r_core_ids[i]];
|
|
if (c != COUNTER_VALUE && c != 0) {
|
|
printf("Reader lcore id %u did not complete = %u\t",
|
|
rte_lcore_id(), c);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if (rte_hash_free_key_with_position(hash, pos) < 0) {
|
|
printf("Failed to free the key #%d\n", keys[del]);
|
|
return -1;
|
|
}
|
|
rte_free(hash_data[ti->ih][del]);
|
|
hash_data[ti->ih][del] = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct rte_hash *
|
|
init_hash(int hash_id)
|
|
{
|
|
int i;
|
|
struct rte_hash *h = NULL;
|
|
|
|
sprintf(hash_name[hash_id], "hash%d", hash_id);
|
|
struct rte_hash_parameters hash_params = {
|
|
.entries = TOTAL_ENTRY,
|
|
.key_len = sizeof(uint32_t),
|
|
.hash_func_init_val = 0,
|
|
.socket_id = rte_socket_id(),
|
|
.hash_func = rte_hash_crc,
|
|
.extra_flag =
|
|
RTE_HASH_EXTRA_FLAGS_RW_CONCURRENCY_LF,
|
|
.name = hash_name[hash_id],
|
|
};
|
|
|
|
h = rte_hash_create(&hash_params);
|
|
if (h == NULL) {
|
|
printf("Hash create Failed\n");
|
|
return NULL;
|
|
}
|
|
|
|
for (i = 0; i < TOTAL_ENTRY; i++) {
|
|
hash_data[hash_id][i] =
|
|
rte_zmalloc(NULL, sizeof(uint32_t) * RTE_MAX_LCORE, 0);
|
|
if (hash_data[hash_id][i] == NULL) {
|
|
printf("No memory\n");
|
|
return NULL;
|
|
}
|
|
}
|
|
keys = rte_malloc(NULL, sizeof(uint32_t) * TOTAL_ENTRY, 0);
|
|
if (keys == NULL) {
|
|
printf("No memory\n");
|
|
return NULL;
|
|
}
|
|
|
|
for (i = 0; i < TOTAL_ENTRY; i++)
|
|
keys[i] = i;
|
|
|
|
for (i = 0; i < TOTAL_ENTRY; i++) {
|
|
if (rte_hash_add_key_data(h, keys + i,
|
|
(void *)((uintptr_t)hash_data[hash_id][i]))
|
|
< 0) {
|
|
printf("Hash key add Failed #%d\n", i);
|
|
return NULL;
|
|
}
|
|
}
|
|
return h;
|
|
}
|
|
|
|
/*
|
|
* Functional test:
|
|
* Single writer, Single QS variable, simultaneous QSBR Queries
|
|
*/
|
|
static int
|
|
test_rcu_qsbr_sw_sv_3qs(void)
|
|
{
|
|
uint64_t token[3];
|
|
uint32_t c;
|
|
int i;
|
|
int32_t pos[3];
|
|
|
|
writer_done = 0;
|
|
|
|
printf("Test: 1 writer, 1 QSBR variable, simultaneous QSBR queries\n");
|
|
|
|
rte_rcu_qsbr_init(t[0], RTE_MAX_LCORE);
|
|
|
|
/* Shared data structure created */
|
|
h[0] = init_hash(0);
|
|
if (h[0] == NULL) {
|
|
printf("Hash init failed\n");
|
|
goto error;
|
|
}
|
|
|
|
/* No need to fill the registered core IDs as the writer
|
|
* thread is not launched.
|
|
*/
|
|
thread_info[0].ir = 0;
|
|
thread_info[0].ih = 0;
|
|
|
|
/* Reader threads are launched */
|
|
for (i = 0; i < 4; i++)
|
|
rte_eal_remote_launch(test_rcu_qsbr_reader, &thread_info[0],
|
|
enabled_core_ids[i]);
|
|
|
|
/* Delete element from the shared data structure */
|
|
pos[0] = rte_hash_del_key(h[0], keys + 0);
|
|
if (pos[0] < 0) {
|
|
printf("Delete key failed #%d\n", keys[0]);
|
|
goto error;
|
|
}
|
|
/* Start the quiescent state query process */
|
|
token[0] = rte_rcu_qsbr_start(t[0]);
|
|
|
|
/* Delete element from the shared data structure */
|
|
pos[1] = rte_hash_del_key(h[0], keys + 3);
|
|
if (pos[1] < 0) {
|
|
printf("Delete key failed #%d\n", keys[3]);
|
|
goto error;
|
|
}
|
|
/* Start the quiescent state query process */
|
|
token[1] = rte_rcu_qsbr_start(t[0]);
|
|
|
|
/* Delete element from the shared data structure */
|
|
pos[2] = rte_hash_del_key(h[0], keys + 6);
|
|
if (pos[2] < 0) {
|
|
printf("Delete key failed #%d\n", keys[6]);
|
|
goto error;
|
|
}
|
|
/* Start the quiescent state query process */
|
|
token[2] = rte_rcu_qsbr_start(t[0]);
|
|
|
|
/* Check the quiescent state status */
|
|
rte_rcu_qsbr_check(t[0], token[0], true);
|
|
for (i = 0; i < 4; i++) {
|
|
c = hash_data[0][0][enabled_core_ids[i]];
|
|
if (c != COUNTER_VALUE && c != 0) {
|
|
printf("Reader lcore %d did not complete #0 = %d\n",
|
|
enabled_core_ids[i], c);
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
if (rte_hash_free_key_with_position(h[0], pos[0]) < 0) {
|
|
printf("Failed to free the key #%d\n", keys[0]);
|
|
goto error;
|
|
}
|
|
rte_free(hash_data[0][0]);
|
|
hash_data[0][0] = NULL;
|
|
|
|
/* Check the quiescent state status */
|
|
rte_rcu_qsbr_check(t[0], token[1], true);
|
|
for (i = 0; i < 4; i++) {
|
|
c = hash_data[0][3][enabled_core_ids[i]];
|
|
if (c != COUNTER_VALUE && c != 0) {
|
|
printf("Reader lcore %d did not complete #3 = %d\n",
|
|
enabled_core_ids[i], c);
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
if (rte_hash_free_key_with_position(h[0], pos[1]) < 0) {
|
|
printf("Failed to free the key #%d\n", keys[3]);
|
|
goto error;
|
|
}
|
|
rte_free(hash_data[0][3]);
|
|
hash_data[0][3] = NULL;
|
|
|
|
/* Check the quiescent state status */
|
|
rte_rcu_qsbr_check(t[0], token[2], true);
|
|
for (i = 0; i < 4; i++) {
|
|
c = hash_data[0][6][enabled_core_ids[i]];
|
|
if (c != COUNTER_VALUE && c != 0) {
|
|
printf("Reader lcore %d did not complete #6 = %d\n",
|
|
enabled_core_ids[i], c);
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
if (rte_hash_free_key_with_position(h[0], pos[2]) < 0) {
|
|
printf("Failed to free the key #%d\n", keys[6]);
|
|
goto error;
|
|
}
|
|
rte_free(hash_data[0][6]);
|
|
hash_data[0][6] = NULL;
|
|
|
|
writer_done = 1;
|
|
|
|
/* Wait and check return value from reader threads */
|
|
for (i = 0; i < 4; i++)
|
|
if (rte_eal_wait_lcore(enabled_core_ids[i]) < 0)
|
|
goto error;
|
|
rte_hash_free(h[0]);
|
|
rte_free(keys);
|
|
|
|
return 0;
|
|
|
|
error:
|
|
writer_done = 1;
|
|
/* Wait until all readers have exited */
|
|
rte_eal_mp_wait_lcore();
|
|
|
|
rte_hash_free(h[0]);
|
|
rte_free(keys);
|
|
for (i = 0; i < TOTAL_ENTRY; i++)
|
|
rte_free(hash_data[0][i]);
|
|
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* Multi writer, Multiple QS variable, simultaneous QSBR queries
|
|
*/
|
|
static int
|
|
test_rcu_qsbr_mw_mv_mqs(void)
|
|
{
|
|
unsigned int i, j;
|
|
unsigned int test_cores;
|
|
|
|
writer_done = 0;
|
|
test_cores = num_cores / 4;
|
|
test_cores = test_cores * 4;
|
|
|
|
printf("Test: %d writers, %d QSBR variable, simultaneous QSBR queries\n",
|
|
test_cores / 2, test_cores / 4);
|
|
|
|
for (i = 0; i < test_cores / 4; i++) {
|
|
j = i * 4;
|
|
rte_rcu_qsbr_init(t[i], RTE_MAX_LCORE);
|
|
h[i] = init_hash(i);
|
|
if (h[i] == NULL) {
|
|
printf("Hash init failed\n");
|
|
goto error;
|
|
}
|
|
thread_info[i].ir = i;
|
|
thread_info[i].ih = i;
|
|
thread_info[i].r_core_ids[0] = enabled_core_ids[j];
|
|
thread_info[i].r_core_ids[1] = enabled_core_ids[j + 1];
|
|
|
|
/* Reader threads are launched */
|
|
rte_eal_remote_launch(test_rcu_qsbr_reader,
|
|
(void *)&thread_info[i],
|
|
enabled_core_ids[j]);
|
|
rte_eal_remote_launch(test_rcu_qsbr_reader,
|
|
(void *)&thread_info[i],
|
|
enabled_core_ids[j + 1]);
|
|
|
|
/* Writer threads are launched */
|
|
rte_eal_remote_launch(test_rcu_qsbr_writer,
|
|
(void *)&thread_info[i],
|
|
enabled_core_ids[j + 2]);
|
|
rte_eal_remote_launch(test_rcu_qsbr_writer,
|
|
(void *)&thread_info[i],
|
|
enabled_core_ids[j + 3]);
|
|
}
|
|
|
|
/* Wait and check return value from writer threads */
|
|
for (i = 0; i < test_cores / 4; i++) {
|
|
j = i * 4;
|
|
if (rte_eal_wait_lcore(enabled_core_ids[j + 2]) < 0)
|
|
goto error;
|
|
|
|
if (rte_eal_wait_lcore(enabled_core_ids[j + 3]) < 0)
|
|
goto error;
|
|
}
|
|
writer_done = 1;
|
|
|
|
/* Wait and check return value from reader threads */
|
|
for (i = 0; i < test_cores / 4; i++) {
|
|
j = i * 4;
|
|
if (rte_eal_wait_lcore(enabled_core_ids[j]) < 0)
|
|
goto error;
|
|
|
|
if (rte_eal_wait_lcore(enabled_core_ids[j + 1]) < 0)
|
|
goto error;
|
|
}
|
|
|
|
for (i = 0; i < test_cores / 4; i++)
|
|
rte_hash_free(h[i]);
|
|
|
|
rte_free(keys);
|
|
|
|
return 0;
|
|
|
|
error:
|
|
writer_done = 1;
|
|
/* Wait until all readers and writers have exited */
|
|
rte_eal_mp_wait_lcore();
|
|
|
|
for (i = 0; i < test_cores / 4; i++)
|
|
rte_hash_free(h[i]);
|
|
rte_free(keys);
|
|
for (j = 0; j < test_cores / 4; j++)
|
|
for (i = 0; i < TOTAL_ENTRY; i++)
|
|
rte_free(hash_data[j][i]);
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int
|
|
test_rcu_qsbr_main(void)
|
|
{
|
|
uint16_t core_id;
|
|
|
|
if (rte_lcore_count() < 5) {
|
|
printf("Not enough cores for rcu_qsbr_autotest, expecting at least 5\n");
|
|
return TEST_SKIPPED;
|
|
}
|
|
|
|
num_cores = 0;
|
|
RTE_LCORE_FOREACH_SLAVE(core_id) {
|
|
enabled_core_ids[num_cores] = core_id;
|
|
num_cores++;
|
|
}
|
|
|
|
/* Error-checking test cases */
|
|
if (test_rcu_qsbr_get_memsize() < 0)
|
|
goto test_fail;
|
|
|
|
if (test_rcu_qsbr_init() < 0)
|
|
goto test_fail;
|
|
|
|
alloc_rcu();
|
|
|
|
if (test_rcu_qsbr_thread_register() < 0)
|
|
goto test_fail;
|
|
|
|
if (test_rcu_qsbr_thread_unregister() < 0)
|
|
goto test_fail;
|
|
|
|
if (test_rcu_qsbr_start() < 0)
|
|
goto test_fail;
|
|
|
|
if (test_rcu_qsbr_check() < 0)
|
|
goto test_fail;
|
|
|
|
if (test_rcu_qsbr_synchronize() < 0)
|
|
goto test_fail;
|
|
|
|
if (test_rcu_qsbr_dump() < 0)
|
|
goto test_fail;
|
|
|
|
if (test_rcu_qsbr_thread_online() < 0)
|
|
goto test_fail;
|
|
|
|
if (test_rcu_qsbr_thread_offline() < 0)
|
|
goto test_fail;
|
|
|
|
printf("\nFunctional tests\n");
|
|
|
|
if (test_rcu_qsbr_sw_sv_3qs() < 0)
|
|
goto test_fail;
|
|
|
|
if (test_rcu_qsbr_mw_mv_mqs() < 0)
|
|
goto test_fail;
|
|
|
|
free_rcu();
|
|
|
|
printf("\n");
|
|
return 0;
|
|
|
|
test_fail:
|
|
free_rcu();
|
|
|
|
return -1;
|
|
}
|
|
|
|
REGISTER_TEST_COMMAND(rcu_qsbr_autotest, test_rcu_qsbr_main);
|