2 * Copyright (c) 2007 Scott Long
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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.
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
26 #include <sys/cdefs.h>
27 __FBSDID("$FreeBSD$");
29 #include <sys/types.h>
30 #include <sys/fcntl.h>
31 #include <sys/ioctl.h>
34 #include </sys/dev/mfi/mfireg.h>
35 #include </sys/dev/mfi/mfi_ioctl.h>
41 * Simple program to print out the queue stats on the given queue index.
42 * See /sys/sys/mfi_ioctl.h for the definitions of each queue index.
48 printf("Usage: mfi_checkq <queue_number>\n");
53 main(int argc, char **argv)
55 union mfi_statrequest sr;
56 int fd, retval, queue;
61 fd = open("/dev/mfi0", O_RDWR);
63 printf("couldn't open mfi0: %s\n", strerror(errno));
67 queue = atoi(argv[1]);
68 printf("Getting stats for queue %d\n", queue);
69 bzero(&sr, sizeof(union mfi_statrequest));
71 retval = ioctl(fd, MFIIO_STATS, &sr);
73 printf("error on ioctl: %s\n", strerror(errno));
77 printf("length= %d, max= %d\n",sr.ms_qstat.q_length, sr.ms_qstat.q_max);