| #ifndef _LINUX_GENHD_H |
| #define _LINUX_GENHD_H |
| |
| /* |
| * genhd.h Copyright (C) 1992 Drew Eckhardt |
| * Generic hard disk header file by |
| * Drew Eckhardt |
| * |
| * <drew@colorado.edu> |
| */ |
| |
| #include <linux/types.h> |
| |
| #ifdef CONFIG_BLOCK |
| |
| enum { |
| /* These three have identical behaviour; use the second one if DOS FDISK gets |
| confused about extended/logical partitions starting past cylinder 1023. */ |
| DOS_EXTENDED_PARTITION = 5, |
| LINUX_EXTENDED_PARTITION = 0x85, |
| WIN98_EXTENDED_PARTITION = 0x0f, |
| |
| SUN_WHOLE_DISK = DOS_EXTENDED_PARTITION, |
| |
| LINUX_SWAP_PARTITION = 0x82, |
| LINUX_DATA_PARTITION = 0x83, |
| LINUX_LVM_PARTITION = 0x8e, |
| LINUX_RAID_PARTITION = 0xfd, /* autodetect RAID partition */ |
| |
| SOLARIS_X86_PARTITION = LINUX_SWAP_PARTITION, |
| NEW_SOLARIS_X86_PARTITION = 0xbf, |
| |
| DM6_AUX1PARTITION = 0x51, /* no DDO: use xlated geom */ |
| DM6_AUX3PARTITION = 0x53, /* no DDO: use xlated geom */ |
| DM6_PARTITION = 0x54, /* has DDO: use xlated geom & offset */ |
| EZD_PARTITION = 0x55, /* EZ-DRIVE */ |
| |
| FREEBSD_PARTITION = 0xa5, /* FreeBSD Partition ID */ |
| OPENBSD_PARTITION = 0xa6, /* OpenBSD Partition ID */ |
| NETBSD_PARTITION = 0xa9, /* NetBSD Partition ID */ |
| BSDI_PARTITION = 0xb7, /* BSDI Partition ID */ |
| MINIX_PARTITION = 0x81, /* Minix Partition ID */ |
| UNIXWARE_PARTITION = 0x63, /* Same as GNU_HURD and SCO Unix */ |
| }; |
| |
| |
| struct partition { |
| unsigned char boot_ind; /* 0x80 - active */ |
| unsigned char head; /* starting head */ |
| unsigned char sector; /* starting sector */ |
| unsigned char cyl; /* starting cylinder */ |
| unsigned char sys_ind; /* What partition type */ |
| unsigned char end_head; /* end head */ |
| unsigned char end_sector; /* end sector */ |
| unsigned char end_cyl; /* end cylinder */ |
| unsigned int start_sect; /* starting sector counting from 0 */ |
| unsigned int nr_sects; /* nr of sectors in partition */ |
| } __attribute__((packed)); |
| |
| |
| |
| #ifdef CONFIG_SOLARIS_X86_PARTITION |
| |
| #define SOLARIS_X86_NUMSLICE 16 |
| #define SOLARIS_X86_VTOC_SANE (0x600DDEEEUL) |
| |
| struct solaris_x86_slice { |
| __le16 s_tag; /* ID tag of partition */ |
| __le16 s_flag; /* permission flags */ |
| __le32 s_start; /* start sector no of partition */ |
| __le32 s_size; /* # of blocks in partition */ |
| }; |
| |
| struct solaris_x86_vtoc { |
| unsigned int v_bootinfo[3]; /* info needed by mboot (unsupported) */ |
| __le32 v_sanity; /* to verify vtoc sanity */ |
| __le32 v_version; /* layout version */ |
| char v_volume[8]; /* volume name */ |
| __le16 v_sectorsz; /* sector size in bytes */ |
| __le16 v_nparts; /* number of partitions */ |
| unsigned int v_reserved[10]; /* free space */ |
| struct solaris_x86_slice |
| v_slice[SOLARIS_X86_NUMSLICE]; /* slice headers */ |
| unsigned int timestamp[SOLARIS_X86_NUMSLICE]; /* timestamp (unsupported) */ |
| char v_asciilabel[128]; /* for compatibility */ |
| }; |
| |
| #endif /* CONFIG_SOLARIS_X86_PARTITION */ |
| |
| #ifdef CONFIG_BSD_DISKLABEL |
| /* |
| * BSD disklabel support by Yossi Gottlieb <yogo@math.tau.ac.il> |
| * updated by Marc Espie <Marc.Espie@openbsd.org> |
| */ |
| |
| /* check against BSD src/sys/sys/disklabel.h for consistency */ |
| |
| #define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */ |
| #define BSD_MAXPARTITIONS 16 |
| #define OPENBSD_MAXPARTITIONS 16 |
| #define BSD_FS_UNUSED 0 /* disklabel unused partition entry ID */ |
| struct bsd_disklabel { |
| __le32 d_magic; /* the magic number */ |
| __s16 d_type; /* drive type */ |
| __s16 d_subtype; /* controller/d_type specific */ |
| char d_typename[16]; /* type name, e.g. "eagle" */ |
| char d_packname[16]; /* pack identifier */ |
| __u32 d_secsize; /* # of bytes per sector */ |
| __u32 d_nsectors; /* # of data sectors per track */ |
| __u32 d_ntracks; /* # of tracks per cylinder */ |
| __u32 d_ncylinders; /* # of data cylinders per unit */ |
| __u32 d_secpercyl; /* # of data sectors per cylinder */ |
| __u32 d_secperunit; /* # of data sectors per unit */ |
| __u16 d_sparespertrack; /* # of spare sectors per track */ |
| __u16 d_sparespercyl; /* # of spare sectors per cylinder */ |
| __u32 d_acylinders; /* # of alt. cylinders per unit */ |
| __u16 d_rpm; /* rotational speed */ |
| __u16 d_interleave; /* hardware sector interleave */ |
| __u16 d_trackskew; /* sector 0 skew, per track */ |
| __u16 d_cylskew; /* sector 0 skew, per cylinder */ |
| __u32 d_headswitch; /* head switch time, usec */ |
| __u32 d_trkseek; /* track-to-track seek, usec */ |
| __u32 d_flags; /* generic flags */ |
| #define NDDATA 5 |
| __u32 d_drivedata[NDDATA]; /* drive-type specific information */ |
| #define NSPARE 5 |
| __u32 d_spare[NSPARE]; /* reserved for future use */ |
| __le32 d_magic2; /* the magic number (again) */ |
| __le16 d_checksum; /* xor of data incl. partitions */ |
| |
| /* filesystem and partition information: */ |
| __le16 d_npartitions; /* number of partitions in following */ |
| __le32 d_bbsize; /* size of boot area at sn0, bytes */ |
| __le32 d_sbsize; /* max size of fs superblock, bytes */ |
| struct bsd_partition { /* the partition table */ |
| __le32 p_size; /* number of sectors in partition */ |
| __le32 p_offset; /* starting sector */ |
| __le32 p_fsize; /* filesystem basic fragment size */ |
| __u8 p_fstype; /* filesystem type, see below */ |
| __u8 p_frag; /* filesystem fragments per block */ |
| __le16 p_cpg; /* filesystem cylinders per group */ |
| } d_partitions[BSD_MAXPARTITIONS]; /* actually may be more */ |
| }; |
| |
| #endif /* CONFIG_BSD_DISKLABEL */ |
| |
| #ifdef CONFIG_UNIXWARE_DISKLABEL |
| /* |
| * Unixware slices support by Andrzej Krzysztofowicz <ankry@mif.pg.gda.pl> |
| * and Krzysztof G. Baranowski <kgb@knm.org.pl> |
| */ |
| |
| #define UNIXWARE_DISKMAGIC (0xCA5E600DUL) /* The disk magic number */ |
| #define UNIXWARE_DISKMAGIC2 (0x600DDEEEUL) /* The slice table magic nr */ |
| #define UNIXWARE_NUMSLICE 16 |
| #define UNIXWARE_FS_UNUSED 0 /* Unused slice entry ID */ |
| |
| struct unixware_slice { |
| __le16 s_label; /* label */ |
| __le16 s_flags; /* permission flags */ |
| __le32 start_sect; /* starting sector */ |
| __le32 nr_sects; /* number of sectors in slice */ |
| }; |
| |
| struct unixware_disklabel { |
| __le32 d_type; /* drive type */ |
| __le32 d_magic; /* the magic number */ |
| __le32 d_version; /* version number */ |
| char d_serial[12]; /* serial number of the device */ |
| __le32 d_ncylinders; /* # of data cylinders per device */ |
| __le32 d_ntracks; /* # of tracks per cylinder */ |
| __le32 d_nsectors; /* # of data sectors per track */ |
| __le32 d_secsize; /* # of bytes per sector */ |
| __le32 d_part_start; /* # of first sector of this partition */ |
| __le32 d_unknown1[12]; /* ? */ |
| __le32 d_alt_tbl; /* byte offset of alternate table */ |
| __le32 d_alt_len; /* byte length of alternate table */ |
| __le32 d_phys_cyl; /* # of physical cylinders per device */ |
| __le32 d_phys_trk; /* # of physical tracks per cylinder */ |
| __le32 d_phys_sec; /* # of physical sectors per track */ |
| __le32 d_phys_bytes; /* # of physical bytes per sector */ |
| __le32 d_unknown2; /* ? */ |
| __le32 d_unknown3; /* ? */ |
| __le32 d_pad[8]; /* pad */ |
| |
| struct unixware_vtoc { |
| __le32 v_magic; /* the magic number */ |
| __le32 v_version; /* version number */ |
| char v_name[8]; /* volume name */ |
| __le16 v_nslices; /* # of slices */ |
| __le16 v_unknown1; /* ? */ |
| __le32 v_reserved[10]; /* reserved */ |
| struct unixware_slice |
| v_slice[UNIXWARE_NUMSLICE]; /* slice headers */ |
| } vtoc; |
| |
| }; /* 408 */ |
| |
| #endif /* CONFIG_UNIXWARE_DISKLABEL */ |
| |
| #ifdef CONFIG_MINIX_SUBPARTITION |
| # define MINIX_NR_SUBPARTITIONS 4 |
| #endif /* CONFIG_MINIX_SUBPARTITION */ |
| |
| |
| #else /* CONFIG_BLOCK */ |
| |
| static __inline__ void printk_all_partitions(void) { } |
| |
| #endif /* CONFIG_BLOCK */ |
| |
| #endif |