1/*-
2 * Copyright (c) 2004 Scott Long
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23 * SUCH DAMAGE.
24 */
25
26#include <sys/cdefs.h>
27__FBSDID("$FreeBSD$");
28
29#include <sys/types.h>
30#include <sys/fcntl.h>
31#include <sys/ioctl.h>
32#include <sys/aac_ioctl.h>
33
34#include <errno.h>
35#include <stdio.h>
36#include <stdlib.h>
37#include <string.h>
38#include <strings.h>
39#include <unistd.h>
40
41void usage(void);
42
43/*
44 * Simple program to print out the queue stats on the given queue index.
45 * See /sys/sys/aac_ioctl.h for the definitions of each queue index.
46 */
47
48void
49usage(void)
50{
51	printf("Usage: aac_checkq <queue_number>\n");
52	exit(1);
53}
54
55int
56main(int argc, char **argv)
57{
58	union aac_statrequest sr;
59	int fd, retval, queue;
60
61	if (argc != 2)
62		usage();
63
64	fd = open("/dev/aac0", O_RDWR);
65	if (fd == -1) {
66		printf("couldn't open aac0: %s\n", strerror(errno));
67		return (-1);
68	}
69
70	queue = atoi(argv[1]);
71	printf("Getting stats for queue %d\n", queue);
72	bzero(&sr, sizeof(union aac_statrequest));
73	sr.as_item = queue;
74	retval = ioctl(fd, AACIO_STATS, &sr);
75	if (retval == -1) {
76		printf("error on ioctl: %s\n", strerror(errno));
77		return (-1);
78	}
79
80	printf("length= %d, max= %d\n",sr.as_qstat.q_length, sr.as_qstat.q_max);
81
82	close(fd);
83	return 0;
84}
85