raw/ifpga: remove virtual devices on close

[dpdk.git] / examples / helloworld / main.c

diff --git a/examples/helloworld/main.c b/examples/helloworld/main.c
index a4bbd11..af50913 100644 (file)
--- a/examples/helloworld/main.c
+++ b/examples/helloworld/main.c
@@ -1,34 +1,5 @@
-/*-
- *   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.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2014 Intel Corporation
  */
 
 #include <stdio.h>
@@ -38,23 +9,24 @@
 #include <sys/queue.h>
 
 #include <rte_memory.h>
-#include <rte_memzone.h>
 #include <rte_launch.h>
-#include <rte_tailq.h>
 #include <rte_eal.h>
 #include <rte_per_lcore.h>
 #include <rte_lcore.h>
 #include <rte_debug.h>
 
+/* Launch a function on lcore. 8< */
 static int
-lcore_hello(__attribute__((unused)) void *arg)
+lcore_hello(__rte_unused void *arg)
 {
        unsigned lcore_id;
        lcore_id = rte_lcore_id();
        printf("hello from core %u\n", lcore_id);
        return 0;
 }
+/* >8 End of launching function on lcore. */
 
+/* Initialization of Environment Abstraction Layer (EAL). 8< */
 int
 main(int argc, char **argv)
 {
@@ -64,15 +36,23 @@ main(int argc, char **argv)
        ret = rte_eal_init(argc, argv);
        if (ret < 0)
                rte_panic("Cannot init EAL\n");
+       /* >8 End of initialization of Environment Abstraction Layer */
 
-       /* call lcore_hello() on every slave lcore */
-       RTE_LCORE_FOREACH_SLAVE(lcore_id) {
+       /* Launches the function on each lcore. 8< */
+       RTE_LCORE_FOREACH_WORKER(lcore_id) {
+               /* Simpler equivalent. 8< */
                rte_eal_remote_launch(lcore_hello, NULL, lcore_id);
+               /* >8 End of simpler equivalent. */
        }
 
-       /* call it on master lcore too */
+       /* call it on main lcore too */
        lcore_hello(NULL);
+       /* >8 End of launching the function on each lcore. */
 
        rte_eal_mp_wait_lcore();
+
+       /* clean up the EAL */
+       rte_eal_cleanup();
+
        return 0;
 }