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