xref: /dpdk/examples/helloworld/main.c (revision af75078fece3615088e561357c1e97603e43a5fe)
1*af75078fSIntel /*-
2*af75078fSIntel  *   BSD LICENSE
3*af75078fSIntel  *
4*af75078fSIntel  *   Copyright(c) 2010-2012 Intel Corporation. All rights reserved.
5*af75078fSIntel  *   All rights reserved.
6*af75078fSIntel  *
7*af75078fSIntel  *   Redistribution and use in source and binary forms, with or without
8*af75078fSIntel  *   modification, are permitted provided that the following conditions
9*af75078fSIntel  *   are met:
10*af75078fSIntel  *
11*af75078fSIntel  *     * Redistributions of source code must retain the above copyright
12*af75078fSIntel  *       notice, this list of conditions and the following disclaimer.
13*af75078fSIntel  *     * Redistributions in binary form must reproduce the above copyright
14*af75078fSIntel  *       notice, this list of conditions and the following disclaimer in
15*af75078fSIntel  *       the documentation and/or other materials provided with the
16*af75078fSIntel  *       distribution.
17*af75078fSIntel  *     * Neither the name of Intel Corporation nor the names of its
18*af75078fSIntel  *       contributors may be used to endorse or promote products derived
19*af75078fSIntel  *       from this software without specific prior written permission.
20*af75078fSIntel  *
21*af75078fSIntel  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22*af75078fSIntel  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23*af75078fSIntel  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24*af75078fSIntel  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25*af75078fSIntel  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26*af75078fSIntel  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27*af75078fSIntel  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28*af75078fSIntel  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29*af75078fSIntel  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30*af75078fSIntel  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31*af75078fSIntel  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32*af75078fSIntel  *
33*af75078fSIntel  *  version: DPDK.L.1.2.3-3
34*af75078fSIntel  */
35*af75078fSIntel 
36*af75078fSIntel #include <stdio.h>
37*af75078fSIntel #include <string.h>
38*af75078fSIntel #include <stdint.h>
39*af75078fSIntel #include <errno.h>
40*af75078fSIntel #include <sys/queue.h>
41*af75078fSIntel 
42*af75078fSIntel #include <rte_memory.h>
43*af75078fSIntel #include <rte_memzone.h>
44*af75078fSIntel #include <rte_launch.h>
45*af75078fSIntel #include <rte_tailq.h>
46*af75078fSIntel #include <rte_eal.h>
47*af75078fSIntel #include <rte_per_lcore.h>
48*af75078fSIntel #include <rte_lcore.h>
49*af75078fSIntel #include <rte_debug.h>
50*af75078fSIntel 
51*af75078fSIntel #include "main.h"
52*af75078fSIntel 
53*af75078fSIntel static int
54*af75078fSIntel lcore_hello(__attribute__((unused)) void *arg)
55*af75078fSIntel {
56*af75078fSIntel 	unsigned lcore_id;
57*af75078fSIntel 	lcore_id = rte_lcore_id();
58*af75078fSIntel 	printf("hello from core %u\n", lcore_id);
59*af75078fSIntel 	return 0;
60*af75078fSIntel }
61*af75078fSIntel 
62*af75078fSIntel int
63*af75078fSIntel MAIN(int argc, char **argv)
64*af75078fSIntel {
65*af75078fSIntel 	int ret;
66*af75078fSIntel 	unsigned lcore_id;
67*af75078fSIntel 
68*af75078fSIntel 	ret = rte_eal_init(argc, argv);
69*af75078fSIntel 	if (ret < 0)
70*af75078fSIntel 		rte_panic("Cannot init EAL\n");
71*af75078fSIntel 
72*af75078fSIntel 	/* call lcore_hello() on every slave lcore */
73*af75078fSIntel 	RTE_LCORE_FOREACH_SLAVE(lcore_id) {
74*af75078fSIntel 		rte_eal_remote_launch(lcore_hello, NULL, lcore_id);
75*af75078fSIntel 	}
76*af75078fSIntel 
77*af75078fSIntel 	/* call it on master lcore too */
78*af75078fSIntel 	lcore_hello(NULL);
79*af75078fSIntel 
80*af75078fSIntel 	rte_eal_mp_wait_lcore();
81*af75078fSIntel 	return 0;
82*af75078fSIntel }
83