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 *
| 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 *
|
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#include <sys/disk.h>
46
47struct disk;
48
49typedef int disk_open_t(struct disk *);
50typedef int disk_close_t(struct disk *);
51typedef void disk_strategy_t(struct bio *bp);
52typedef int disk_getattr_t(struct bio *bp);
53typedef void disk_gone_t(struct disk *);
54typedef int disk_ioctl_t(struct disk *, u_long cmd, void *data,
55 int fflag, struct thread *td);
56 /* NB: disk_ioctl_t SHALL be cast'able to d_ioctl_t */
57
58struct g_geom;
59struct devstat;
60
61struct disk {
62 /* Fields which are private to geom_disk */
63 struct g_geom *d_geom;
64 struct devstat *d_devstat;
65 int d_destroyed;
66
67 /* Shared fields */
68 u_int d_flags;
69 const char *d_name;
70 u_int d_unit;
71 struct bio_queue_head *d_queue;
72 struct mtx *d_lock;
73
74 /* Disk methods */
75 disk_open_t *d_open;
76 disk_close_t *d_close;
77 disk_strategy_t *d_strategy;
78 disk_ioctl_t *d_ioctl;
79 dumper_t *d_dump;
80 disk_getattr_t *d_getattr;
81 disk_gone_t *d_gone;
82
83 /* Info fields from driver to geom_disk.c. Valid when open */
84 u_int d_sectorsize;
85 off_t d_mediasize;
86 u_int d_fwsectors;
87 u_int d_fwheads;
88 u_int d_maxsize;
89 u_int d_stripeoffset;
90 u_int d_stripesize;
91 char d_ident[DISK_IDENT_SIZE];
92 char d_descr[DISK_IDENT_SIZE];
93 uint16_t d_hba_vendor;
94 uint16_t d_hba_device;
95 uint16_t d_hba_subvendor;
96 uint16_t d_hba_subdevice;
97
98 /* Fields private to the driver */
99 void *d_drv1;
100};
101
102#define DISKFLAG_NEEDSGIANT 0x1
103#define DISKFLAG_OPEN 0x2
104#define DISKFLAG_CANDELETE 0x4
105#define DISKFLAG_CANFLUSHCACHE 0x8
106
107struct disk *disk_alloc(void);
108void disk_create(struct disk *disk, int version);
109void disk_destroy(struct disk *disk);
110void disk_gone(struct disk *disk);
111void disk_attr_changed(struct disk *dp, const char *attr, int flag);
| 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#include <sys/disk.h>
46
47struct disk;
48
49typedef int disk_open_t(struct disk *);
50typedef int disk_close_t(struct disk *);
51typedef void disk_strategy_t(struct bio *bp);
52typedef int disk_getattr_t(struct bio *bp);
53typedef void disk_gone_t(struct disk *);
54typedef int disk_ioctl_t(struct disk *, u_long cmd, void *data,
55 int fflag, struct thread *td);
56 /* NB: disk_ioctl_t SHALL be cast'able to d_ioctl_t */
57
58struct g_geom;
59struct devstat;
60
61struct disk {
62 /* Fields which are private to geom_disk */
63 struct g_geom *d_geom;
64 struct devstat *d_devstat;
65 int d_destroyed;
66
67 /* Shared fields */
68 u_int d_flags;
69 const char *d_name;
70 u_int d_unit;
71 struct bio_queue_head *d_queue;
72 struct mtx *d_lock;
73
74 /* Disk methods */
75 disk_open_t *d_open;
76 disk_close_t *d_close;
77 disk_strategy_t *d_strategy;
78 disk_ioctl_t *d_ioctl;
79 dumper_t *d_dump;
80 disk_getattr_t *d_getattr;
81 disk_gone_t *d_gone;
82
83 /* Info fields from driver to geom_disk.c. Valid when open */
84 u_int d_sectorsize;
85 off_t d_mediasize;
86 u_int d_fwsectors;
87 u_int d_fwheads;
88 u_int d_maxsize;
89 u_int d_stripeoffset;
90 u_int d_stripesize;
91 char d_ident[DISK_IDENT_SIZE];
92 char d_descr[DISK_IDENT_SIZE];
93 uint16_t d_hba_vendor;
94 uint16_t d_hba_device;
95 uint16_t d_hba_subvendor;
96 uint16_t d_hba_subdevice;
97
98 /* Fields private to the driver */
99 void *d_drv1;
100};
101
102#define DISKFLAG_NEEDSGIANT 0x1
103#define DISKFLAG_OPEN 0x2
104#define DISKFLAG_CANDELETE 0x4
105#define DISKFLAG_CANFLUSHCACHE 0x8
106
107struct disk *disk_alloc(void);
108void disk_create(struct disk *disk, int version);
109void disk_destroy(struct disk *disk);
110void disk_gone(struct disk *disk);
111void disk_attr_changed(struct disk *dp, const char *attr, int flag);
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