1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2019 Intel Corporation 3 */ 4 5 #include <stdio.h> 6 #include <string.h> 7 8 #include <rte_eal.h> 9 #include <rte_lcore.h> 10 #include <rte_debug.h> 11 #include <rte_memzone.h> 12 #include <rte_atomic.h> 13 #include <rte_timer.h> 14 #include <rte_cycles.h> 15 #include <rte_mempool.h> 16 #include <rte_random.h> 17 18 #include "test.h" 19 #include "process.h" 20 21 #define NUM_TIMERS (1 << 20) /* ~1M timers */ 22 #define NUM_LCORES_NEEDED 3 23 #define TEST_INFO_MZ_NAME "test_timer_info_mz" 24 #define MSECPERSEC 1E3 25 26 #define launch_proc(ARGV) process_dup(ARGV, RTE_DIM(ARGV), __func__) 27 28 struct test_info { 29 unsigned int main_lcore; 30 unsigned int mgr_lcore; 31 unsigned int sec_lcore; 32 uint32_t timer_data_id; 33 volatile int expected_count; 34 volatile int expired_count; 35 struct rte_mempool *tim_mempool; 36 struct rte_timer *expired_timers[NUM_TIMERS]; 37 int expired_timers_idx; 38 volatile int exit_flag; 39 }; 40 41 static int 42 timer_secondary_spawn_wait(unsigned int lcore) 43 { 44 char coremask[10]; 45 #ifdef RTE_EXEC_ENV_LINUXAPP 46 char tmp[PATH_MAX] = {0}; 47 char prefix[PATH_MAX] = {0}; 48 49 get_current_prefix(tmp, sizeof(tmp)); 50 51 snprintf(prefix, sizeof(prefix), "--file-prefix=%s", tmp); 52 #else 53 const char *prefix = ""; 54 #endif 55 char const *argv[] = { 56 prgname, 57 "-c", coremask, 58 "--proc-type=secondary", 59 prefix 60 }; 61 62 snprintf(coremask, sizeof(coremask), "%x", (1 << lcore)); 63 64 return launch_proc(argv); 65 } 66 67 static void 68 handle_expired_timer(struct rte_timer *tim) 69 { 70 struct test_info *test_info = tim->arg; 71 72 test_info->expired_count++; 73 test_info->expired_timers[test_info->expired_timers_idx++] = tim; 74 } 75 76 static int 77 timer_manage_loop(void *arg) 78 { 79 #define TICK_MSECS 1 80 uint64_t tick_cycles = TICK_MSECS * rte_get_timer_hz() / MSECPERSEC; 81 uint64_t prev_tsc = 0, cur_tsc, diff_tsc; 82 struct test_info *test_info = arg; 83 84 while (!test_info->exit_flag) { 85 cur_tsc = rte_rdtsc(); 86 diff_tsc = cur_tsc - prev_tsc; 87 88 if (diff_tsc > tick_cycles) { 89 /* Scan timer list for expired timers */ 90 rte_timer_alt_manage(test_info->timer_data_id, 91 NULL, 92 0, 93 handle_expired_timer); 94 95 /* Return expired timer objects back to mempool */ 96 rte_mempool_put_bulk(test_info->tim_mempool, 97 (void **)test_info->expired_timers, 98 test_info->expired_timers_idx); 99 100 test_info->expired_timers_idx = 0; 101 102 prev_tsc = cur_tsc; 103 } 104 105 rte_pause(); 106 } 107 108 return 0; 109 } 110 111 int 112 test_timer_secondary(void) 113 { 114 int proc_type = rte_eal_process_type(); 115 const struct rte_memzone *mz; 116 struct test_info *test_info; 117 int ret; 118 119 if (proc_type == RTE_PROC_PRIMARY) { 120 if (rte_lcore_count() < NUM_LCORES_NEEDED) { 121 printf("Not enough cores for test_timer_secondary, expecting at least %u\n", 122 NUM_LCORES_NEEDED); 123 return TEST_SKIPPED; 124 } 125 126 mz = rte_memzone_reserve(TEST_INFO_MZ_NAME, sizeof(*test_info), 127 SOCKET_ID_ANY, 0); 128 test_info = mz->addr; 129 TEST_ASSERT_NOT_NULL(test_info, "Couldn't allocate memory for " 130 "test data"); 131 132 test_info->tim_mempool = rte_mempool_create("test_timer_mp", 133 NUM_TIMERS, sizeof(struct rte_timer), 0, 0, 134 NULL, NULL, NULL, NULL, rte_socket_id(), 0); 135 136 ret = rte_timer_data_alloc(&test_info->timer_data_id); 137 TEST_ASSERT_SUCCESS(ret, "Failed to allocate timer data " 138 "instance"); 139 140 unsigned int *main_lcorep = &test_info->main_lcore; 141 unsigned int *mgr_lcorep = &test_info->mgr_lcore; 142 unsigned int *sec_lcorep = &test_info->sec_lcore; 143 144 *main_lcorep = rte_get_main_lcore(); 145 *mgr_lcorep = rte_get_next_lcore(*main_lcorep, 1, 1); 146 *sec_lcorep = rte_get_next_lcore(*mgr_lcorep, 1, 1); 147 148 ret = rte_eal_remote_launch(timer_manage_loop, 149 (void *)test_info, 150 *mgr_lcorep); 151 TEST_ASSERT_SUCCESS(ret, "Failed to launch timer manage loop"); 152 153 ret = timer_secondary_spawn_wait(*sec_lcorep); 154 TEST_ASSERT_SUCCESS(ret, "Secondary process execution failed"); 155 156 rte_delay_ms(2000); 157 158 test_info->exit_flag = 1; 159 rte_eal_wait_lcore(*mgr_lcorep); 160 161 #ifdef RTE_LIBRTE_TIMER_DEBUG 162 rte_timer_alt_dump_stats(test_info->timer_data_id, stdout); 163 #endif 164 165 return test_info->expected_count == test_info->expired_count ? 166 TEST_SUCCESS : TEST_FAILED; 167 168 } else if (proc_type == RTE_PROC_SECONDARY) { 169 uint64_t ticks, timeout_ms; 170 struct rte_timer *tim; 171 int i; 172 173 mz = rte_memzone_lookup(TEST_INFO_MZ_NAME); 174 test_info = mz->addr; 175 TEST_ASSERT_NOT_NULL(test_info, "Couldn't lookup memzone for " 176 "test info"); 177 178 for (i = 0; i < NUM_TIMERS; i++) { 179 rte_mempool_get(test_info->tim_mempool, (void **)&tim); 180 181 rte_timer_init(tim); 182 183 /* generate timeouts between 10 and 160 ms */ 184 timeout_ms = ((rte_rand() & 0xF) + 1) * 10; 185 ticks = timeout_ms * rte_get_timer_hz() / MSECPERSEC; 186 187 ret = rte_timer_alt_reset(test_info->timer_data_id, 188 tim, ticks, SINGLE, 189 test_info->mgr_lcore, NULL, 190 test_info); 191 if (ret < 0) 192 return TEST_FAILED; 193 194 test_info->expected_count++; 195 196 /* randomly leave timer running or stop it */ 197 if (rte_rand() & 1) 198 continue; 199 200 ret = rte_timer_alt_stop(test_info->timer_data_id, 201 tim); 202 if (ret == 0) { 203 test_info->expected_count--; 204 rte_mempool_put(test_info->tim_mempool, 205 (void *)tim); 206 } 207 208 } 209 210 return TEST_SUCCESS; 211 } 212 213 return TEST_FAILED; 214 } 215 216 REGISTER_TEST_COMMAND(timer_secondary_autotest, test_timer_secondary); 217