1 /*
2 * Copyright (c) 2005 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 #define _GNU_SOURCE
33 #include <config.h>
34
35 #include <stdio.h>
36 #include <infiniband/endian.h>
37 #include <getopt.h>
38 #include <string.h>
39
40 #include <infiniband/verbs.h>
41
event_name_str(enum ibv_event_type event_type)42 static const char *event_name_str(enum ibv_event_type event_type)
43 {
44 switch (event_type) {
45 case IBV_EVENT_DEVICE_FATAL:
46 return "IBV_EVENT_DEVICE_FATAL";
47 case IBV_EVENT_PORT_ACTIVE:
48 return "IBV_EVENT_PORT_ACTIVE";
49 case IBV_EVENT_PORT_ERR:
50 return "IBV_EVENT_PORT_ERR";
51 case IBV_EVENT_LID_CHANGE:
52 return "IBV_EVENT_LID_CHANGE";
53 case IBV_EVENT_PKEY_CHANGE:
54 return "IBV_EVENT_PKEY_CHANGE";
55 case IBV_EVENT_SM_CHANGE:
56 return "IBV_EVENT_SM_CHANGE";
57 case IBV_EVENT_CLIENT_REREGISTER:
58 return "IBV_EVENT_CLIENT_REREGISTER";
59 case IBV_EVENT_GID_CHANGE:
60 return "IBV_EVENT_GID_CHANGE";
61
62 case IBV_EVENT_CQ_ERR:
63 case IBV_EVENT_QP_FATAL:
64 case IBV_EVENT_QP_REQ_ERR:
65 case IBV_EVENT_QP_ACCESS_ERR:
66 case IBV_EVENT_COMM_EST:
67 case IBV_EVENT_SQ_DRAINED:
68 case IBV_EVENT_PATH_MIG:
69 case IBV_EVENT_PATH_MIG_ERR:
70 case IBV_EVENT_SRQ_ERR:
71 case IBV_EVENT_SRQ_LIMIT_REACHED:
72 case IBV_EVENT_QP_LAST_WQE_REACHED:
73 default:
74 return "unexpected";
75 }
76 }
77
usage(const char * argv0)78 static void usage(const char *argv0)
79 {
80 printf("Usage:\n");
81 printf(" %s start an asyncwatch process\n", argv0);
82 printf("\n");
83 printf("Options:\n");
84 printf(" -d, --ib-dev=<dev> use IB device <dev> (default first device found)\n");
85 printf(" -h, --help print a help text and exit\n");
86 }
87
main(int argc,char * argv[])88 int main(int argc, char *argv[])
89 {
90 struct ibv_device **dev_list;
91 struct ibv_context *context;
92 struct ibv_async_event event;
93 char *ib_devname = NULL;
94 int i = 0;
95
96 /* Force line-buffering in case stdout is redirected */
97 setvbuf(stdout, NULL, _IOLBF, 0);
98
99 while (1) {
100 int ret = 1;
101 int c;
102 static struct option long_options[] = {
103 { .name = "ib-dev", .has_arg = 1, .val = 'd' },
104 { .name = "help", .has_arg = 0, .val = 'h' },
105 {}
106 };
107
108 c = getopt_long(argc, argv, "d:h", long_options, NULL);
109 if (c == -1)
110 break;
111 switch (c) {
112 case 'd':
113 ib_devname = strdupa(optarg);
114 break;
115 case 'h':
116 ret = 0;
117 SWITCH_FALLTHROUGH;
118 default:
119 usage(argv[0]);
120 return ret;
121 }
122 }
123 dev_list = ibv_get_device_list(NULL);
124 if (!dev_list) {
125 perror("Failed to get IB devices list");
126 return 1;
127 }
128 if (ib_devname) {
129 for (; dev_list[i]; ++i) {
130 if (!strcmp(ibv_get_device_name(dev_list[i]), ib_devname))
131 break;
132 }
133 }
134
135 if (!dev_list[i]) {
136 fprintf(stderr, "IB device %s not found\n",
137 ib_devname ? ib_devname : "");
138 return 1;
139 }
140
141 context = ibv_open_device(dev_list[i]);
142 if (!context) {
143 fprintf(stderr, "Couldn't get context for %s\n",
144 ibv_get_device_name(dev_list[i]));
145 return 1;
146 }
147
148 printf("%s: async event FD %d\n",
149 ibv_get_device_name(dev_list[i]), context->async_fd);
150
151 while (1) {
152 if (ibv_get_async_event(context, &event))
153 return 1;
154
155 printf(" event_type %s (%d), port %d\n",
156 event_name_str(event.event_type),
157 event.event_type, event.element.port_num);
158
159 ibv_ack_async_event(&event);
160 }
161
162 return 0;
163 }
164