xref: /dragonfly/sys/sys/disk.h (revision 38a690d7)
1 /*
2  * ----------------------------------------------------------------------------
3  * "THE BEER-WARE LICENSE" (Revision 42):
4  * <phk@FreeBSD.ORG> wrote this file.  As long as you retain this notice you
5  * can do whatever you want with this stuff. If we meet some day, and you think
6  * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
7  * ----------------------------------------------------------------------------
8  *
9  * $FreeBSD: src/sys/sys/disk.h,v 1.16.2.3 2001/06/20 16:11:01 scottl Exp $
10  * $DragonFly: src/sys/sys/disk.h,v 1.3 2003/07/22 17:03:34 dillon Exp $
11  *
12  */
13 
14 #ifndef _SYS_DISK_H_
15 #define	_SYS_DISK_H_
16 
17 #ifndef _SYS_DISKSLICE_H_
18 #include <sys/diskslice.h>
19 #endif
20 
21 #ifndef _SYS_DISKLABEL
22 #include <sys/disklabel.h>
23 #endif
24 
25 #ifndef _SYS_DISKLABEL
26 #include <sys/msgport.h>
27 #endif
28 
29 struct disk {
30 	struct lwkt_port	d_port;		/* interception port */
31 	struct lwkt_port	*d_fwdport;	/* forward to real port */
32 	u_int			d_flags;
33 	u_int			d_dsflags;
34 	dev_t			d_dev;
35 	struct diskslices	*d_slice;
36 	struct disklabel	d_label;
37 	LIST_ENTRY(disk)	d_list;
38 };
39 
40 #define DISKFLAG_LOCK		0x1
41 #define DISKFLAG_WANTED		0x2
42 
43 dev_t disk_create __P((int unit, struct disk *disk, int flags, struct cdevsw *cdevsw));
44 void disk_destroy __P((struct disk *disk));
45 int disk_dumpcheck __P((dev_t dev, u_int *count, u_int *blkno, u_int *secsize));
46 struct disk *disk_enumerate __P((struct disk *disk));
47 void disk_invalidate __P((struct disk *disk));
48 
49 #endif /* _SYS_DISK_H_ */
50