diff options
Diffstat (limited to 'sys/sys/diskmbr.h')
| -rw-r--r-- | sys/sys/diskmbr.h | 76 |
1 files changed, 55 insertions, 21 deletions
diff --git a/sys/sys/diskmbr.h b/sys/sys/diskmbr.h index 859192e7e374..4e4b4aa571b9 100644 --- a/sys/sys/diskmbr.h +++ b/sys/sys/diskmbr.h @@ -35,7 +35,7 @@ */ #ifndef _SYS_DISKLABEL_H_ -#define _SYS_DISKLABEL_H_ +#define _SYS_DISKLABEL_H_ /* * Disk description table, see disktab(5) @@ -50,6 +50,12 @@ * to leave room for a bootstrap, etc. */ +/* + * XXX the following will go away when conversion to the slice version is + * complete: OURPART, RAWPART, readMSPtolabel, readMBRtolabel, dkminor, + * the DOSified readdisklabel, DOS stuff in this file. + */ + /* XXX these should be defined per controller (or drive) elsewhere, not here! */ #ifdef __i386__ #define LABELSECTOR 1 /* sector containing label */ @@ -88,6 +94,9 @@ #define MAXPARTITIONS 8 #endif +#define LABEL_PART 2 /* partition containing label */ +#define RAW_PART 2 /* partition containing whole disk */ +#define SWAP_PART 1 /* partition normally containing swap */ #ifndef LOCORE struct disklabel { @@ -375,21 +384,55 @@ extern struct dos_partition dos_partitions[NDOSPART]; #define DIOCSBAD _IOW('d', 110, struct dkbad) /* set kernel dkbad */ -#endif /* LOCORE */ +/* + * XXX encoding of disk minor numbers, should be elsewhere. + * + * See <sys/reboot.h> for a possibly better encoding. + * + * "cpio -H newc" can be used to back up device files with large minor + * numbers (but not ones >= 2^31). Old cpio formats and all tar formats + * don't have enough bits, and cpio and tar don't notice the lossage. + * There are also some sign extension bugs. + */ +#define dkmakeminor(unit, slice, part) \ + (((slice) << 16) | ((unit) << 3) | (part)) +#define dkminor(unit, part) dkmakeminor((unit), 0, (part)) +#define dkmodpart(dev, part) (((dev) & ~(dev_t)7) | (part)) +#define dkmodslice(dev, slice) (((dev) & ~(dev_t)0x1f0000) | ((slice) << 16)) +#define dkpart(dev) (minor(dev) & 7) +#define dkslice(dev) ((minor(dev) >> 16) & 0x1f) +#define dktype(dev) ((minor(dev) >> 21) & 0x7ff) +#define dkunit(dev) ((minor(dev) >> 3) & 0x1f) #ifdef KERNEL -struct dkbad; +/* + * We're not ready to use <sys/disk.h>. + */ +#include <sys/conf.h> -u_int dkcksum __P((struct disklabel *)); -int writedisklabel __P((dev_t dev, void (*strat)(), struct disklabel *lp)); -char * readdisklabel __P((dev_t dev, void (*strat)(), struct disklabel *lp, struct dos_partition *dp, struct dkbad *bdp)); -int setdisklabel __P((struct disklabel *olp, struct disklabel *nlp, u_long openmask)); +char *correct_readdisklabel __P((dev_t dev, d_strategy_t *strat, + struct disklabel *lp)); +void diskerr __P((struct buf *bp, char *dname, char *what, int pri, + int blkdone, struct disklabel *lp)); void disksort __P((struct buf *ap, struct buf *bp)); -void diskerr __P((struct buf *, char *, char *, int, int, struct disklabel *)); -#ifdef __i386 -char * readMBRtolabel __P(( dev_t dev , void (*strat)(), register struct disklabel *lp, struct dos_partition *dp, int *cyl)); -#endif +u_int dkcksum __P((struct disklabel *lp)); +struct dkbad; +char *readdisklabel __P((dev_t dev, d_strategy_t *strat, + struct disklabel *lp, + struct dos_partition *dp, struct dkbad *bdp)); +#ifdef __i386__ +char *readMBRtolabel __P((dev_t dev, d_strategy_t *strat, + struct disklabel *lp, struct dos_partition *dp, + int *cyl)); #endif +int setdisklabel __P((struct disklabel *olp, struct disklabel *nlp, + u_long openmask)); +int writedisklabel __P((dev_t dev, d_strategy_t *strat, + struct disklabel *lp)); + +#endif /* KERNEL */ + +#endif /* LOCORE */ #if !defined(KERNEL) && !defined(LOCORE) @@ -401,13 +444,4 @@ __END_DECLS #endif -#ifdef __i386 -/* encoding of disk minor numbers, should be elsewhere... */ -#define dkunit(dev) (minor(dev) >> 3) -#define dkpart(dev) (minor(dev) & 07) -#define dkminor(unit, part) (((unit) << 3) | (part)) -#endif - -#endif - - +#endif /* !_SYS_DISKLABEL_H_ */ |