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33 * version: DPDK.L.1.2.3-3
38 #include <sys/queue.h>
40 #include <cmdline_parse.h>
42 #include <rte_common.h>
43 #include <rte_memory.h>
44 #include <rte_memzone.h>
45 #include <rte_per_lcore.h>
46 #include <rte_launch.h>
47 #include <rte_tailq.h>
49 #include <rte_per_lcore.h>
50 #include <rte_lcore.h>
51 #include <rte_cycles.h>
56 * Per-lcore variables and lcore launch
57 * ====================================
59 * - Use ``rte_eal_mp_remote_launch()`` to call ``assign_vars()`` on
60 * every available lcore. In this function, a per-lcore variable is
61 * assigned to the lcore_id.
63 * - Use ``rte_eal_mp_remote_launch()`` to call ``display_vars()`` on
64 * every available lcore. The function checks that the variable is
65 * correctly set, or returns -1.
67 * - If at least one per-core variable was not correct, the test function
71 static RTE_DEFINE_PER_LCORE(unsigned, test) = 0x12345678;
74 assign_vars(__attribute__((unused)) void *arg)
76 if (RTE_PER_LCORE(test) != 0x12345678)
78 RTE_PER_LCORE(test) = rte_lcore_id();
83 display_vars(__attribute__((unused)) void *arg)
85 unsigned lcore_id = rte_lcore_id();
86 unsigned var = RTE_PER_LCORE(test);
87 unsigned socket_id = rte_lcore_to_socket_id(lcore_id);
89 printf("on socket %u, on core %u, variable is %u\n", socket_id, lcore_id, var);
93 RTE_PER_LCORE(test) = 0x12345678;
98 test_per_lcore_delay(__attribute__((unused)) void *arg)
101 printf("wait 5000ms on lcore %u\n", rte_lcore_id());
112 rte_eal_mp_remote_launch(assign_vars, NULL, SKIP_MASTER);
113 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
114 if (rte_eal_wait_lcore(lcore_id) < 0)
118 rte_eal_mp_remote_launch(display_vars, NULL, SKIP_MASTER);
119 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
120 if (rte_eal_wait_lcore(lcore_id) < 0)
124 /* test if it could do remote launch twice at the same time or not */
125 ret = rte_eal_mp_remote_launch(test_per_lcore_delay, NULL, SKIP_MASTER);
127 printf("It fails to do remote launch but it should able to do\n");
130 /* it should not be able to launch a lcore which is running */
131 ret = rte_eal_mp_remote_launch(test_per_lcore_delay, NULL, SKIP_MASTER);
133 printf("It does remote launch successfully but it should not at this time\n");
136 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
137 if (rte_eal_wait_lcore(lcore_id) < 0)