Imported Upstream version 16.04

[deb_dpdk.git] / app / test / test_per_lcore.c

diff --git a/app/test/test_per_lcore.c b/app/test/test_per_lcore.c
new file mode 100644 (file)
index 0000000..b16449a
--- /dev/null
+++ b/app/test/test_per_lcore.c
@@ -0,0 +1,143 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <sys/queue.h>
+
+#include <rte_common.h>
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_per_lcore.h>
+#include <rte_launch.h>
+#include <rte_eal.h>
+#include <rte_per_lcore.h>
+#include <rte_lcore.h>
+#include <rte_cycles.h>
+
+#include "test.h"
+
+/*
+ * Per-lcore variables and lcore launch
+ * ====================================
+ *
+ * - Use ``rte_eal_mp_remote_launch()`` to call ``assign_vars()`` on
+ *   every available lcore. In this function, a per-lcore variable is
+ *   assigned to the lcore_id.
+ *
+ * - Use ``rte_eal_mp_remote_launch()`` to call ``display_vars()`` on
+ *   every available lcore. The function checks that the variable is
+ *   correctly set, or returns -1.
+ *
+ * - If at least one per-core variable was not correct, the test function
+ *   returns -1.
+ */
+
+static RTE_DEFINE_PER_LCORE(unsigned, test) = 0x12345678;
+
+static int
+assign_vars(__attribute__((unused)) void *arg)
+{
+       if (RTE_PER_LCORE(test) != 0x12345678)
+               return -1;
+       RTE_PER_LCORE(test) = rte_lcore_id();
+       return 0;
+}
+
+static int
+display_vars(__attribute__((unused)) void *arg)
+{
+       unsigned lcore_id = rte_lcore_id();
+       unsigned var = RTE_PER_LCORE(test);
+       unsigned socket_id = rte_lcore_to_socket_id(lcore_id);
+
+       printf("on socket %u, on core %u, variable is %u\n", socket_id, lcore_id, var);
+       if (lcore_id != var)
+               return -1;
+
+       RTE_PER_LCORE(test) = 0x12345678;
+       return 0;
+}
+
+static int
+test_per_lcore_delay(__attribute__((unused)) void *arg)
+{
+       rte_delay_ms(5000);
+       printf("wait 5000ms on lcore %u\n", rte_lcore_id());
+
+       return 0;
+}
+
+static int
+test_per_lcore(void)
+{
+       unsigned lcore_id;
+       int ret;
+
+       rte_eal_mp_remote_launch(assign_vars, NULL, SKIP_MASTER);
+       RTE_LCORE_FOREACH_SLAVE(lcore_id) {
+               if (rte_eal_wait_lcore(lcore_id) < 0)
+                       return -1;
+       }
+
+       rte_eal_mp_remote_launch(display_vars, NULL, SKIP_MASTER);
+       RTE_LCORE_FOREACH_SLAVE(lcore_id) {
+               if (rte_eal_wait_lcore(lcore_id) < 0)
+                       return -1;
+       }
+
+       /* test if it could do remote launch twice at the same time or not */
+       ret = rte_eal_mp_remote_launch(test_per_lcore_delay, NULL, SKIP_MASTER);
+       if (ret < 0) {
+               printf("It fails to do remote launch but it should able to do\n");
+               return -1;
+       }
+       /* it should not be able to launch a lcore which is running */
+       ret = rte_eal_mp_remote_launch(test_per_lcore_delay, NULL, SKIP_MASTER);
+       if (ret == 0) {
+               printf("It does remote launch successfully but it should not at this time\n");
+               return -1;
+       }
+       RTE_LCORE_FOREACH_SLAVE(lcore_id) {
+               if (rte_eal_wait_lcore(lcore_id) < 0)
+                       return -1;
+       }
+
+       return 0;
+}
+
+static struct test_command per_lcore_cmd = {
+       .command = "per_lcore_autotest",
+       .callback = test_per_lcore,
+};
+REGISTER_TEST_COMMAND(per_lcore_cmd);