master
1/* $NetBSD: dkio.h,v 1.26 2020/03/02 16:01:56 riastradh Exp $ */
2
3/*
4 * Copyright (c) 1987, 1988, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#ifndef _SYS_DKIO_H_
33#define _SYS_DKIO_H_
34
35#include <sys/ioccom.h>
36#include <prop/plistref.h>
37
38/*
39 * Disk-specific ioctls.
40 */
41 /* get and set disklabel; DIOCGPARTINFO used internally */
42#define DIOCGDINFO _IOR('d', 101, struct disklabel)/* get */
43#define DIOCSDINFO _IOW('d', 102, struct disklabel)/* set */
44#define DIOCWDINFO _IOW('d', 103, struct disklabel)/* set, update disk */
45
46#ifdef _KERNEL
47#define DIOCGDINFO32 (DIOCGDINFO - (sizeof(uint32_t) << IOCPARM_SHIFT))
48#define DIOCGPARTINFO _IOW('d', 104, struct partinfo) /* get partition */
49#endif
50
51#if defined(__HAVE_OLD_DISKLABEL) && defined(_KERNEL)
52#define ODIOCGDINFO _IOR('d', 101, struct olddisklabel)/* get */
53#define ODIOCSDINFO _IOW('d', 102, struct olddisklabel)/* set */
54#define ODIOCWDINFO _IOW('d', 103, struct olddisklabel)/* set, update dk */
55#endif
56
57/* do format operation, read or write */
58#define DIOCRFORMAT _IOWR('d', 105, struct format_op)
59#define DIOCWFORMAT _IOWR('d', 106, struct format_op)
60
61#define DIOCSSTEP _IOW('d', 107, int) /* set step rate */
62#define DIOCSRETRIES _IOW('d', 108, int) /* set # of retries */
63#define DIOCKLABEL _IOW('d', 119, int) /* keep/drop label on close? */
64#define DIOCWLABEL _IOW('d', 109, int) /* write en/disable label */
65
66#define DIOCSBAD _IOW('d', 110, struct dkbad) /* set kernel dkbad */
67#define DIOCEJECT _IOW('d', 112, int) /* eject removable disk */
68#define ODIOCEJECT _IO('d', 112) /* eject removable disk */
69#define DIOCLOCK _IOW('d', 113, int) /* lock/unlock pack */
70
71 /* get default label, clear label */
72#define DIOCGDEFLABEL _IOR('d', 114, struct disklabel)
73#define DIOCCLRLABEL _IO('d', 115)
74
75#if defined(__HAVE_OLD_DISKLABEL) && defined(_KERNEL)
76#define ODIOCGDEFLABEL _IOR('d', 114, struct olddisklabel)
77#endif
78
79 /* disk cache enable/disable */
80#define DIOCGCACHE _IOR('d', 116, int) /* get cache enables */
81#define DIOCSCACHE _IOW('d', 117, int) /* set cache enables */
82
83#define DKCACHE_READ 0x000001 /* read cache enabled */
84#define DKCACHE_WRITE 0x000002 /* write(back) cache enabled */
85#define DKCACHE_RCHANGE 0x000100 /* read enable is changeable */
86#define DKCACHE_WCHANGE 0x000200 /* write enable is changeable */
87#define DKCACHE_SAVE 0x010000 /* cache parameters are savable/save them */
88#define DKCACHE_FUA 0x020000 /* Force Unit Access supported */
89#define DKCACHE_DPO 0x040000 /* Disable Page Out supported */
90
91/*
92 * Combine disk cache flags of two drives to get common cache capabilities.
93 * All common flags are retained. Besides this, if one of the disks
94 * has a write cache enabled or changeable, propagate those flags into result,
95 * even if it's not shared, to indicate that write cache is present.
96 */
97#define DKCACHE_COMBINE(a, b) \
98 (((a) & (b)) | (((a) | (b)) & (DKCACHE_WRITE|DKCACHE_WCHANGE)))
99
100 /* sync disk cache */
101#define DIOCCACHESYNC _IOW('d', 118, int) /* sync cache (force?) */
102
103 /* bad sector list */
104#define DIOCBSLIST _IOWR('d', 119, struct disk_badsecinfo) /* get list */
105#define DIOCBSFLUSH _IO('d', 120) /* flush list */
106
107 /* wedges */
108#define DIOCAWEDGE _IOWR('d', 121, struct dkwedge_info) /* add wedge */
109#define DIOCGWEDGEINFO _IOR('d', 122, struct dkwedge_info) /* get wedge inf */
110#define DIOCDWEDGE _IOW('d', 123, struct dkwedge_info) /* del wedge */
111#define DIOCLWEDGES _IOWR('d', 124, struct dkwedge_list) /* list wedges */
112
113 /* disk buffer queue strategy */
114#define DIOCGSTRATEGY _IOR('d', 125, struct disk_strategy)
115#define DIOCSSTRATEGY _IOW('d', 126, struct disk_strategy)
116
117 /* get disk-info dictionary */
118#define DIOCGDISKINFO _IOR('d', 127, struct plistref)
119
120
121#define DIOCTUR _IOR('d', 128, int) /* test unit ready */
122
123/* 129 was DIOCGDISCARDPARAMS during 6.99 */
124/* 130 was DIOCDISCARD during 6.99 */
125
126 /* trigger wedge auto discover */
127#define DIOCMWEDGES _IOR('d', 131, int) /* make wedges */
128
129 /* query disk geometry */
130#define DIOCGSECTORSIZE _IOR('d', 133, u_int) /* sector size in bytes */
131#define DIOCGMEDIASIZE _IOR('d', 132, off_t) /* media size in bytes */
132
133 /* mass removal */
134#define DIOCRMWEDGES _IOR('d', 134, int) /* remove all wedges */
135
136 /* sector alignment */
137#define DIOCGSECTORALIGN _IOR('d', 135, struct disk_sectoralign)
138
139#endif /* _SYS_DKIO_H_ */