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37 #include <sys/queue.h>
39 #include <cmdline_parse.h>
41 #include <rte_common.h>
42 #include <rte_memory.h>
43 #include <rte_memzone.h>
44 #include <rte_per_lcore.h>
45 #include <rte_launch.h>
46 #include <rte_tailq.h>
48 #include <rte_per_lcore.h>
49 #include <rte_lcore.h>
50 #include <rte_cycles.h>
55 * Per-lcore variables and lcore launch
56 * ====================================
58 * - Use ``rte_eal_mp_remote_launch()`` to call ``assign_vars()`` on
59 * every available lcore. In this function, a per-lcore variable is
60 * assigned to the lcore_id.
62 * - Use ``rte_eal_mp_remote_launch()`` to call ``display_vars()`` on
63 * every available lcore. The function checks that the variable is
64 * correctly set, or returns -1.
66 * - If at least one per-core variable was not correct, the test function
70 static RTE_DEFINE_PER_LCORE(unsigned, test) = 0x12345678;
73 assign_vars(__attribute__((unused)) void *arg)
75 if (RTE_PER_LCORE(test) != 0x12345678)
77 RTE_PER_LCORE(test) = rte_lcore_id();
82 display_vars(__attribute__((unused)) void *arg)
84 unsigned lcore_id = rte_lcore_id();
85 unsigned var = RTE_PER_LCORE(test);
86 unsigned socket_id = rte_lcore_to_socket_id(lcore_id);
88 printf("on socket %u, on core %u, variable is %u\n", socket_id, lcore_id, var);
92 RTE_PER_LCORE(test) = 0x12345678;
97 test_per_lcore_delay(__attribute__((unused)) void *arg)
100 printf("wait 5000ms on lcore %u\n", rte_lcore_id());
111 rte_eal_mp_remote_launch(assign_vars, NULL, SKIP_MASTER);
112 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
113 if (rte_eal_wait_lcore(lcore_id) < 0)
117 rte_eal_mp_remote_launch(display_vars, NULL, SKIP_MASTER);
118 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
119 if (rte_eal_wait_lcore(lcore_id) < 0)
123 /* test if it could do remote launch twice at the same time or not */
124 ret = rte_eal_mp_remote_launch(test_per_lcore_delay, NULL, SKIP_MASTER);
126 printf("It fails to do remote launch but it should able to do\n");
129 /* it should not be able to launch a lcore which is running */
130 ret = rte_eal_mp_remote_launch(test_per_lcore_delay, NULL, SKIP_MASTER);
132 printf("It does remote launch successfully but it should not at this time\n");
135 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
136 if (rte_eal_wait_lcore(lcore_id) < 0)