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36 #include <sys/queue.h>
38 #include <rte_common.h>
39 #include <rte_memory.h>
40 #include <rte_memzone.h>
41 #include <rte_per_lcore.h>
42 #include <rte_launch.h>
44 #include <rte_per_lcore.h>
45 #include <rte_lcore.h>
46 #include <rte_cycles.h>
51 * Per-lcore variables and lcore launch
52 * ====================================
54 * - Use ``rte_eal_mp_remote_launch()`` to call ``assign_vars()`` on
55 * every available lcore. In this function, a per-lcore variable is
56 * assigned to the lcore_id.
58 * - Use ``rte_eal_mp_remote_launch()`` to call ``display_vars()`` on
59 * every available lcore. The function checks that the variable is
60 * correctly set, or returns -1.
62 * - If at least one per-core variable was not correct, the test function
66 static RTE_DEFINE_PER_LCORE(unsigned, test) = 0x12345678;
69 assign_vars(__attribute__((unused)) void *arg)
71 if (RTE_PER_LCORE(test) != 0x12345678)
73 RTE_PER_LCORE(test) = rte_lcore_id();
78 display_vars(__attribute__((unused)) void *arg)
80 unsigned lcore_id = rte_lcore_id();
81 unsigned var = RTE_PER_LCORE(test);
82 unsigned socket_id = rte_lcore_to_socket_id(lcore_id);
84 printf("on socket %u, on core %u, variable is %u\n", socket_id, lcore_id, var);
88 RTE_PER_LCORE(test) = 0x12345678;
93 test_per_lcore_delay(__attribute__((unused)) void *arg)
96 printf("wait 100ms on lcore %u\n", rte_lcore_id());
107 rte_eal_mp_remote_launch(assign_vars, NULL, SKIP_MASTER);
108 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
109 if (rte_eal_wait_lcore(lcore_id) < 0)
113 rte_eal_mp_remote_launch(display_vars, NULL, SKIP_MASTER);
114 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
115 if (rte_eal_wait_lcore(lcore_id) < 0)
119 /* test if it could do remote launch twice at the same time or not */
120 ret = rte_eal_mp_remote_launch(test_per_lcore_delay, NULL, SKIP_MASTER);
122 printf("It fails to do remote launch but it should able to do\n");
125 /* it should not be able to launch a lcore which is running */
126 ret = rte_eal_mp_remote_launch(test_per_lcore_delay, NULL, SKIP_MASTER);
128 printf("It does remote launch successfully but it should not at this time\n");
131 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
132 if (rte_eal_wait_lcore(lcore_id) < 0)
139 static struct test_command per_lcore_cmd = {
140 .command = "per_lcore_autotest",
141 .callback = test_per_lcore,
143 REGISTER_TEST_COMMAND(per_lcore_cmd);