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/*
* Copyright (c) 2005 Topspin Communications. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* 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.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#define _GNU_SOURCE
#include <config.h>
#include <stdio.h>
#include <endian.h>
#include <getopt.h>
#include <string.h>
#include <alloca.h>
#include <util/compiler.h>
#include <infiniband/verbs.h>
static const char *event_name_str(enum ibv_event_type event_type)
{
switch (event_type) {
case IBV_EVENT_DEVICE_FATAL:
return "IBV_EVENT_DEVICE_FATAL";
case IBV_EVENT_PORT_ACTIVE:
return "IBV_EVENT_PORT_ACTIVE";
case IBV_EVENT_PORT_ERR:
return "IBV_EVENT_PORT_ERR";
case IBV_EVENT_LID_CHANGE:
return "IBV_EVENT_LID_CHANGE";
case IBV_EVENT_PKEY_CHANGE:
return "IBV_EVENT_PKEY_CHANGE";
case IBV_EVENT_SM_CHANGE:
return "IBV_EVENT_SM_CHANGE";
case IBV_EVENT_CLIENT_REREGISTER:
return "IBV_EVENT_CLIENT_REREGISTER";
case IBV_EVENT_GID_CHANGE:
return "IBV_EVENT_GID_CHANGE";
case IBV_EVENT_CQ_ERR:
case IBV_EVENT_QP_FATAL:
case IBV_EVENT_QP_REQ_ERR:
case IBV_EVENT_QP_ACCESS_ERR:
case IBV_EVENT_COMM_EST:
case IBV_EVENT_SQ_DRAINED:
case IBV_EVENT_PATH_MIG:
case IBV_EVENT_PATH_MIG_ERR:
case IBV_EVENT_SRQ_ERR:
case IBV_EVENT_SRQ_LIMIT_REACHED:
case IBV_EVENT_QP_LAST_WQE_REACHED:
default:
return "unexpected";
}
}
static void usage(const char *argv0)
{
printf("Usage:\n");
printf(" %s start an asyncwatch process\n", argv0);
printf("\n");
printf("Options:\n");
printf(" -d, --ib-dev=<dev> use IB device <dev> (default first device found)\n");
printf(" -h, --help print a help text and exit\n");
}
int main(int argc, char *argv[])
{
struct ibv_device **dev_list;
struct ibv_context *context;
struct ibv_async_event event;
char *ib_devname = NULL;
int i = 0;
/* Force line-buffering in case stdout is redirected */
setvbuf(stdout, NULL, _IOLBF, 0);
while (1) {
int ret = 1;
int c;
static struct option long_options[] = {
{ .name = "ib-dev", .has_arg = 1, .val = 'd' },
{ .name = "help", .has_arg = 0, .val = 'h' },
{}
};
c = getopt_long(argc, argv, "d:h", long_options, NULL);
if (c == -1)
break;
switch (c) {
case 'd':
ib_devname = strdupa(optarg);
break;
case 'h':
ret = 0;
SWITCH_FALLTHROUGH;
default:
usage(argv[0]);
return ret;
}
}
dev_list = ibv_get_device_list(NULL);
if (!dev_list) {
perror("Failed to get IB devices list");
return 1;
}
if (ib_devname) {
for (; dev_list[i]; ++i) {
if (!strcmp(ibv_get_device_name(dev_list[i]), ib_devname))
break;
}
}
if (!dev_list[i]) {
fprintf(stderr, "IB device %s not found\n",
ib_devname ? ib_devname : "");
return 1;
}
context = ibv_open_device(dev_list[i]);
if (!context) {
fprintf(stderr, "Couldn't get context for %s\n",
ibv_get_device_name(dev_list[i]));
return 1;
}
printf("%s: async event FD %d\n",
ibv_get_device_name(dev_list[i]), context->async_fd);
while (1) {
if (ibv_get_async_event(context, &event))
return 1;
printf(" event_type %s (%d), port %d\n",
event_name_str(event.event_type),
event.event_type, event.element.port_num);
ibv_ack_async_event(&event);
}
return 0;
}
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