xref: /freebsd/contrib/ofed/libibverbs/examples/device_list.c (revision 7661de35d15f582ab33e3bd6b8d909601557e436)
1 /*
2  * Copyright (c) 2004 Topspin Communications.  All rights reserved.
3  *
4  * This software is available to you under a choice of one of two
5  * licenses.  You may choose to be licensed under the terms of the GNU
6  * General Public License (GPL) Version 2, available from the file
7  * COPYING in the main directory of this source tree, or the
8  * OpenIB.org BSD license below:
9  *
10  *     Redistribution and use in source and binary forms, with or
11  *     without modification, are permitted provided that the following
12  *     conditions are met:
13  *
14  *      - Redistributions of source code must retain the above
15  *        copyright notice, this list of conditions and the following
16  *        disclaimer.
17  *
18  *      - Redistributions in binary form must reproduce the above
19  *        copyright notice, this list of conditions and the following
20  *        disclaimer in the documentation and/or other materials
21  *        provided with the distribution.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30  * SOFTWARE.
31  */
32 
33 #if HAVE_CONFIG_H
34 #  include <config.h>
35 #endif /* HAVE_CONFIG_H */
36 
37 #include <stdio.h>
38 
39 #include <endian.h>
40 #include <byteswap.h>
41 
42 #include <infiniband/verbs.h>
43 #include <infiniband/arch.h>
44 
45 int main(int argc, char *argv[])
46 {
47 	struct ibv_device **dev_list;
48 	int num_devices, i;
49 
50 	dev_list = ibv_get_device_list(&num_devices);
51 	if (!dev_list) {
52 		perror("Failed to get IB devices list");
53 		return 1;
54 	}
55 
56 	printf("    %-16s\t   node GUID\n", "device");
57 	printf("    %-16s\t----------------\n", "------");
58 
59 	for (i = 0; i < num_devices; ++i) {
60 		printf("    %-16s\t%016llx\n",
61 		       ibv_get_device_name(dev_list[i]),
62 		       (unsigned long long) ntohll(ibv_get_device_guid(dev_list[i])));
63 	}
64 
65 	ibv_free_device_list(dev_list);
66 
67 	return 0;
68 }
69