xref: /dpdk/examples/helloworld/main.c (revision 98a1648109b8dbaa4e6b821c17d1f6bd86d33a9a)
1af75078fSIntel /*-
2af75078fSIntel  *   BSD LICENSE
3af75078fSIntel  *
4e9d48c00SBruce Richardson  *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
5af75078fSIntel  *   All rights reserved.
6af75078fSIntel  *
7af75078fSIntel  *   Redistribution and use in source and binary forms, with or without
8af75078fSIntel  *   modification, are permitted provided that the following conditions
9af75078fSIntel  *   are met:
10af75078fSIntel  *
11af75078fSIntel  *     * Redistributions of source code must retain the above copyright
12af75078fSIntel  *       notice, this list of conditions and the following disclaimer.
13af75078fSIntel  *     * Redistributions in binary form must reproduce the above copyright
14af75078fSIntel  *       notice, this list of conditions and the following disclaimer in
15af75078fSIntel  *       the documentation and/or other materials provided with the
16af75078fSIntel  *       distribution.
17af75078fSIntel  *     * Neither the name of Intel Corporation nor the names of its
18af75078fSIntel  *       contributors may be used to endorse or promote products derived
19af75078fSIntel  *       from this software without specific prior written permission.
20af75078fSIntel  *
21af75078fSIntel  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22af75078fSIntel  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23af75078fSIntel  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24af75078fSIntel  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25af75078fSIntel  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26af75078fSIntel  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27af75078fSIntel  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28af75078fSIntel  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29af75078fSIntel  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30af75078fSIntel  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31af75078fSIntel  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32af75078fSIntel  */
33af75078fSIntel 
34af75078fSIntel #include <stdio.h>
35af75078fSIntel #include <string.h>
36af75078fSIntel #include <stdint.h>
37af75078fSIntel #include <errno.h>
38af75078fSIntel #include <sys/queue.h>
39af75078fSIntel 
40af75078fSIntel #include <rte_memory.h>
41af75078fSIntel #include <rte_memzone.h>
42af75078fSIntel #include <rte_launch.h>
43af75078fSIntel #include <rte_tailq.h>
44af75078fSIntel #include <rte_eal.h>
45af75078fSIntel #include <rte_per_lcore.h>
46af75078fSIntel #include <rte_lcore.h>
47af75078fSIntel #include <rte_debug.h>
48af75078fSIntel 
49af75078fSIntel static int
50af75078fSIntel lcore_hello(__attribute__((unused)) void *arg)
51af75078fSIntel {
52af75078fSIntel 	unsigned lcore_id;
53af75078fSIntel 	lcore_id = rte_lcore_id();
54af75078fSIntel 	printf("hello from core %u\n", lcore_id);
55af75078fSIntel 	return 0;
56af75078fSIntel }
57af75078fSIntel 
58af75078fSIntel int
59*98a16481SDavid Marchand main(int argc, char **argv)
60af75078fSIntel {
61af75078fSIntel 	int ret;
62af75078fSIntel 	unsigned lcore_id;
63af75078fSIntel 
64af75078fSIntel 	ret = rte_eal_init(argc, argv);
65af75078fSIntel 	if (ret < 0)
66af75078fSIntel 		rte_panic("Cannot init EAL\n");
67af75078fSIntel 
68af75078fSIntel 	/* call lcore_hello() on every slave lcore */
69af75078fSIntel 	RTE_LCORE_FOREACH_SLAVE(lcore_id) {
70af75078fSIntel 		rte_eal_remote_launch(lcore_hello, NULL, lcore_id);
71af75078fSIntel 	}
72af75078fSIntel 
73af75078fSIntel 	/* call it on master lcore too */
74af75078fSIntel 	lcore_hello(NULL);
75af75078fSIntel 
76af75078fSIntel 	rte_eal_mp_wait_lcore();
77af75078fSIntel 	return 0;
78af75078fSIntel }
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