1/*	$NetBSD: tape.h,v 1.4 2016/01/22 23:44:33 dholland Exp $	*/
 2
 3/*-
 4 * Copyright (c) 2005 The NetBSD Foundation, Inc.
 5 * All rights reserved.
 6 *
 7 * This code is derived from software contributed to The NetBSD Foundation
 8 * by Brett Lymn
 9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Neither the name of The NetBSD Foundation nor the names of its
16 *    contributors may be used to endorse or promote products derived
17 *    from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _SYS_TAPE_H_
33#define _SYS_TAPE_H_
34
35#include <sys/queue.h>
36#include <sys/time.h>
37
38#define	TAPENAMELEN	16
39
40/* The following structure is 64-bit alignment safe */
41struct tape_sysctl {
42	char		name[TAPENAMELEN];
43	int32_t		busy;
44	int32_t		pad;
45	uint64_t	xfer;
46	uint64_t	bytes;
47	uint32_t	attachtime_sec;
48	uint32_t	attachtime_usec;
49	uint32_t	timestamp_sec;
50	uint32_t	timestamp_usec;
51	uint32_t	time_sec;
52	uint32_t	time_usec;
53	uint64_t	rxfer;
54	uint64_t	rbytes;
55	uint64_t	wxfer;
56	uint64_t	wbytes;
57};
58
59/*
60 * Statistics for the tape device - in a separate structure so userland can
61 * see them.
62 */
63
64struct tape {
65	char		*name; 		/* name of drive */
66	int		busy;		/* drive is busy */
67	uint64_t       rxfer;		/* total number of read transfers */
68	uint64_t       wxfer;		/* total number of write transfers */
69	uint64_t       rbytes;		/* total bytes read */
70	uint64_t       wbytes;		/* total bytes written */
71	struct timeval  attachtime;	/* time tape was attached */
72	struct timeval  timestamp;	/* timestamp of last unbusy */
73	struct timeval  time;		/* total time spent busy */
74
75	TAILQ_ENTRY(tape) link;
76};
77
78/* Head of the tape stats list, define here so userland can get at it */
79TAILQ_HEAD(tapelist_head, tape);	/* the tapelist is a TAILQ */
80
81#endif