1/*-
2 * Copyright (c) 2003 Poul-Henning Kamp
3 * All rights reserved.
4 *
5 * This software was developed for the FreeBSD Project by Poul-Henning Kamp
6 * and NAI Labs, the Security Research Division of Network Associates, Inc.
7 * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
8 * DARPA CHATS research program.
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. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. The names of the authors may not be used to endorse or promote
19 * products derived from this software without specific prior written
20 * permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
|
34 * $FreeBSD: head/sys/geom/geom_disk.h 112988 2003-04-02 20:41:18Z phk $
|
| 34 * $FreeBSD: head/sys/geom/geom_disk.h 125975 2004-02-18 21:36:53Z phk $ |
35 */
36
37#ifndef _GEOM_GEOM_DISK_H_
38#define _GEOM_GEOM_DISK_H_
39
40#ifdef _KERNEL
41
42#include <sys/queue.h>
43#include <sys/_lock.h>
44#include <sys/_mutex.h>
45
46typedef int disk_open_t(struct disk *);
47typedef int disk_close_t(struct disk *);
48typedef void disk_strategy_t(struct bio *bp);
49typedef int disk_ioctl_t(struct disk *, u_long cmd, void *data,
50 int fflag, struct thread *td);
51 /* NB: disk_ioctl_t SHALL be cast'able to d_ioctl_t */
52
53struct g_geom;
54struct devstat;
55
56struct disk {
57 /* Fields which are private to geom_disk */
58 struct g_geom *d_geom;
59 struct devstat *d_devstat;
|
| 60 int d_destroyed; |
61
62 /* Shared fields */
63 u_int d_flags;
64 const char *d_name;
65 u_int d_unit;
66 struct bio_queue_head *d_queue;
67 struct mtx *d_lock;
68
69 /* Disk methods */
70 disk_open_t *d_open;
71 disk_close_t *d_close;
72 disk_strategy_t *d_strategy;
73 disk_ioctl_t *d_ioctl;
74 dumper_t *d_dump;
75
76 /* Info fields from driver to geom_disk.c. Valid when open */
77 u_int d_sectorsize;
78 off_t d_mediasize;
79 u_int d_fwsectors;
80 u_int d_fwheads;
81 u_int d_maxsize;
82 u_int d_stripeoffset;
83 u_int d_stripesize;
84
85 /* Fields private to the driver */
86 void *d_drv1;
87};
88
|
88#define DISKFLAG_NOGIANT 0x1
|
| 89#define DISKFLAG_NEEDSGIANT 0x1 |
90#define DISKFLAG_OPEN 0x2
91#define DISKFLAG_CANDELETE 0x4
92
|
92void disk_create(int unit, struct disk *disk, int flags, void *unused, void *unused2);
|
93struct disk *disk_alloc(void);
94void disk_create(struct disk *disk, int version); |
95void disk_destroy(struct disk *disk);
96
|
97#define DISK_VERSION_00 0x58561059
98#define DISK_VERSION DISK_VERSION_00 |
99
100#endif /* _KERNEL */
101#endif /* _GEOM_GEOM_DISK_H_ */
|