Merge commit 'refs/top-bases/linux-zfs-branch' into linux-zfs-branch
This commit is contained in:
Brian Behlendorf
commit
e746637651
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|
@ -0,0 +1,484 @@
|
|||
/*
|
||||
* CDDL HEADER START
|
||||
*
|
||||
* The contents of this file are subject to the terms of the
|
||||
* Common Development and Distribution License (the "License").
|
||||
* You may not use this file except in compliance with the License.
|
||||
*
|
||||
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
||||
* or http://www.opensolaris.org/os/licensing.
|
||||
* See the License for the specific language governing permissions
|
||||
* and limitations under the License.
|
||||
*
|
||||
* When distributing Covered Code, include this CDDL HEADER in each
|
||||
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
||||
* If applicable, add the following below this CDDL HEADER, with the
|
||||
* fields enclosed by brackets "[]" replaced with your own identifying
|
||||
* information: Portions Copyright [yyyy] [name of copyright owner]
|
||||
*
|
||||
* CDDL HEADER END
|
||||
*/
|
||||
/*
|
||||
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
|
||||
* Use is subject to license terms.
|
||||
*/
|
||||
|
||||
#ifndef _SYS_DKIO_H
|
||||
#define _SYS_DKIO_H
|
||||
|
||||
|
||||
|
||||
#include <sys/dklabel.h> /* Needed for NDKMAP define */
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Structures and definitions for disk io control commands
|
||||
*/
|
||||
|
||||
/*
|
||||
* Structures used as data by ioctl calls.
|
||||
*/
|
||||
|
||||
#define DK_DEVLEN 16 /* device name max length, including */
|
||||
/* unit # & NULL (ie - "xyc1") */
|
||||
|
||||
/*
|
||||
* Used for controller info
|
||||
*/
|
||||
struct dk_cinfo {
|
||||
char dki_cname[DK_DEVLEN]; /* controller name (no unit #) */
|
||||
ushort_t dki_ctype; /* controller type */
|
||||
ushort_t dki_flags; /* flags */
|
||||
ushort_t dki_cnum; /* controller number */
|
||||
uint_t dki_addr; /* controller address */
|
||||
uint_t dki_space; /* controller bus type */
|
||||
uint_t dki_prio; /* interrupt priority */
|
||||
uint_t dki_vec; /* interrupt vector */
|
||||
char dki_dname[DK_DEVLEN]; /* drive name (no unit #) */
|
||||
uint_t dki_unit; /* unit number */
|
||||
uint_t dki_slave; /* slave number */
|
||||
ushort_t dki_partition; /* partition number */
|
||||
ushort_t dki_maxtransfer; /* max. transfer size in DEV_BSIZE */
|
||||
};
|
||||
|
||||
/*
|
||||
* Controller types
|
||||
*/
|
||||
#define DKC_UNKNOWN 0
|
||||
#define DKC_CDROM 1 /* CD-ROM, SCSI or otherwise */
|
||||
#define DKC_WDC2880 2
|
||||
#define DKC_XXX_0 3 /* unassigned */
|
||||
#define DKC_XXX_1 4 /* unassigned */
|
||||
#define DKC_DSD5215 5
|
||||
#define DKC_ACB4000 7
|
||||
#define DKC_MD21 8
|
||||
#define DKC_XXX_2 9 /* unassigned */
|
||||
#define DKC_NCRFLOPPY 10
|
||||
#define DKC_SMSFLOPPY 12
|
||||
#define DKC_SCSI_CCS 13 /* SCSI CCS compatible */
|
||||
#define DKC_INTEL82072 14 /* native floppy chip */
|
||||
#define DKC_MD 16 /* meta-disk (virtual-disk) driver */
|
||||
#define DKC_INTEL82077 19 /* 82077 floppy disk controller */
|
||||
#define DKC_DIRECT 20 /* Intel direct attached device i.e. IDE */
|
||||
#define DKC_PCMCIA_MEM 21 /* PCMCIA memory disk-like type */
|
||||
#define DKC_PCMCIA_ATA 22 /* PCMCIA AT Attached type */
|
||||
#define DKC_VBD 23 /* virtual block device */
|
||||
|
||||
/*
|
||||
* Sun reserves up through 1023
|
||||
*/
|
||||
|
||||
#define DKC_CUSTOMER_BASE 1024
|
||||
|
||||
/*
|
||||
* Flags
|
||||
*/
|
||||
#define DKI_BAD144 0x01 /* use DEC std 144 bad sector fwding */
|
||||
#define DKI_MAPTRK 0x02 /* controller does track mapping */
|
||||
#define DKI_FMTTRK 0x04 /* formats only full track at a time */
|
||||
#define DKI_FMTVOL 0x08 /* formats only full volume at a time */
|
||||
#define DKI_FMTCYL 0x10 /* formats only full cylinders at a time */
|
||||
#define DKI_HEXUNIT 0x20 /* unit number is printed as 3 hex digits */
|
||||
#define DKI_PCMCIA_PFD 0x40 /* PCMCIA pseudo-floppy memory card */
|
||||
|
||||
/*
|
||||
* Used for all partitions
|
||||
*/
|
||||
struct dk_allmap {
|
||||
struct dk_map dka_map[NDKMAP];
|
||||
};
|
||||
|
||||
#if defined(_SYSCALL32)
|
||||
struct dk_allmap32 {
|
||||
struct dk_map32 dka_map[NDKMAP];
|
||||
};
|
||||
#endif /* _SYSCALL32 */
|
||||
|
||||
/*
|
||||
* Definition of a disk's geometry
|
||||
*/
|
||||
struct dk_geom {
|
||||
unsigned short dkg_ncyl; /* # of data cylinders */
|
||||
unsigned short dkg_acyl; /* # of alternate cylinders */
|
||||
unsigned short dkg_bcyl; /* cyl offset (for fixed head area) */
|
||||
unsigned short dkg_nhead; /* # of heads */
|
||||
unsigned short dkg_obs1; /* obsolete */
|
||||
unsigned short dkg_nsect; /* # of data sectors per track */
|
||||
unsigned short dkg_intrlv; /* interleave factor */
|
||||
unsigned short dkg_obs2; /* obsolete */
|
||||
unsigned short dkg_obs3; /* obsolete */
|
||||
unsigned short dkg_apc; /* alternates per cyl (SCSI only) */
|
||||
unsigned short dkg_rpm; /* revolutions per minute */
|
||||
unsigned short dkg_pcyl; /* # of physical cylinders */
|
||||
unsigned short dkg_write_reinstruct; /* # sectors to skip, writes */
|
||||
unsigned short dkg_read_reinstruct; /* # sectors to skip, reads */
|
||||
unsigned short dkg_extra[7]; /* for compatible expansion */
|
||||
};
|
||||
|
||||
/*
|
||||
* These defines are for historic compatibility with old drivers.
|
||||
*/
|
||||
#define dkg_bhead dkg_obs1 /* used to be head offset */
|
||||
#define dkg_gap1 dkg_obs2 /* used to be gap1 */
|
||||
#define dkg_gap2 dkg_obs3 /* used to be gap2 */
|
||||
|
||||
/*
|
||||
* Disk io control commands
|
||||
* Warning: some other ioctls with the DIOC prefix exist elsewhere.
|
||||
* The Generic DKIOC numbers are from 0 - 50.
|
||||
* The Floppy Driver uses 51 - 100.
|
||||
* The Hard Disk (except SCSI) 101 - 106. (these are obsolete)
|
||||
* The CDROM Driver 151 - 200.
|
||||
* The USCSI ioctl 201 - 250.
|
||||
*/
|
||||
#define DKIOC (0x04 << 8)
|
||||
|
||||
/*
|
||||
* The following ioctls are generic in nature and need to be
|
||||
* suported as appropriate by all disk drivers
|
||||
*/
|
||||
#define DKIOCGGEOM (DKIOC|1) /* Get geometry */
|
||||
#define DKIOCINFO (DKIOC|3) /* Get info */
|
||||
#define DKIOCEJECT (DKIOC|6) /* Generic 'eject' */
|
||||
#define DKIOCGVTOC (DKIOC|11) /* Get VTOC */
|
||||
#define DKIOCSVTOC (DKIOC|12) /* Set VTOC & Write to Disk */
|
||||
|
||||
/*
|
||||
* Disk Cache Controls. These ioctls should be supported by
|
||||
* all disk drivers.
|
||||
*
|
||||
* DKIOCFLUSHWRITECACHE when used from user-mode ignores the ioctl
|
||||
* argument, but it should be passed as NULL to allow for future
|
||||
* reinterpretation. From user-mode, this ioctl request is synchronous.
|
||||
*
|
||||
* When invoked from within the kernel, the arg can be NULL to indicate
|
||||
* a synchronous request or can be the address of a struct dk_callback
|
||||
* to request an asynchronous callback when the flush request is complete.
|
||||
* In this case, the flag to the ioctl must include FKIOCTL and the
|
||||
* dkc_callback field of the pointed to struct must be non-null or the
|
||||
* request is made synchronously.
|
||||
*
|
||||
* In the callback case: if the ioctl returns 0, a callback WILL be performed.
|
||||
* If the ioctl returns non-zero, a callback will NOT be performed.
|
||||
* NOTE: In some cases, the callback may be done BEFORE the ioctl call
|
||||
* returns. The caller's locking strategy should be prepared for this case.
|
||||
*/
|
||||
#define DKIOCFLUSHWRITECACHE (DKIOC|34) /* flush cache to phys medium */
|
||||
|
||||
struct dk_callback {
|
||||
void (*dkc_callback)(void *dkc_cookie, int error);
|
||||
void *dkc_cookie;
|
||||
int dkc_flag;
|
||||
};
|
||||
|
||||
/* bit flag definitions for dkc_flag */
|
||||
#define FLUSH_VOLATILE 0x1 /* Bit 0: if set, only flush */
|
||||
/* volatile cache; otherwise, flush */
|
||||
/* volatile and non-volatile cache */
|
||||
|
||||
#define DKIOCGETWCE (DKIOC|36) /* Get current write cache */
|
||||
/* enablement status */
|
||||
#define DKIOCSETWCE (DKIOC|37) /* Enable/Disable write cache */
|
||||
|
||||
/*
|
||||
* The following ioctls are used by Sun drivers to communicate
|
||||
* with their associated format routines. Support of these ioctls
|
||||
* is not required of foreign drivers
|
||||
*/
|
||||
#define DKIOCSGEOM (DKIOC|2) /* Set geometry */
|
||||
#define DKIOCSAPART (DKIOC|4) /* Set all partitions */
|
||||
#define DKIOCGAPART (DKIOC|5) /* Get all partitions */
|
||||
#define DKIOCG_PHYGEOM (DKIOC|32) /* get physical geometry */
|
||||
#define DKIOCG_VIRTGEOM (DKIOC|33) /* get virtual geometry */
|
||||
|
||||
/*
|
||||
* The following ioctl's are removable media support
|
||||
*/
|
||||
#define DKIOCLOCK (DKIOC|7) /* Generic 'lock' */
|
||||
#define DKIOCUNLOCK (DKIOC|8) /* Generic 'unlock' */
|
||||
#define DKIOCSTATE (DKIOC|13) /* Inquire insert/eject state */
|
||||
#define DKIOCREMOVABLE (DKIOC|16) /* is media removable */
|
||||
|
||||
|
||||
/*
|
||||
* ioctl for hotpluggable devices
|
||||
*/
|
||||
#define DKIOCHOTPLUGGABLE (DKIOC|35) /* is hotpluggable */
|
||||
|
||||
/*
|
||||
* Ioctl to force driver to re-read the alternate partition and rebuild
|
||||
* the internal defect map.
|
||||
*/
|
||||
#define DKIOCADDBAD (DKIOC|20) /* Re-read the alternate map (IDE) */
|
||||
#define DKIOCGETDEF (DKIOC|21) /* read defect list (IDE) */
|
||||
|
||||
/*
|
||||
* Used by applications to get disk defect information from IDE
|
||||
* drives.
|
||||
*/
|
||||
#ifdef _SYSCALL32
|
||||
struct defect_header32 {
|
||||
int head;
|
||||
caddr32_t buffer;
|
||||
};
|
||||
#endif /* _SYSCALL32 */
|
||||
|
||||
struct defect_header {
|
||||
int head;
|
||||
caddr_t buffer;
|
||||
};
|
||||
|
||||
#define DKIOCPARTINFO (DKIOC|22) /* Get partition or slice parameters */
|
||||
|
||||
/*
|
||||
* Used by applications to get partition or slice information
|
||||
*/
|
||||
#ifdef _SYSCALL32
|
||||
struct part_info32 {
|
||||
daddr32_t p_start;
|
||||
int p_length;
|
||||
};
|
||||
#endif /* _SYSCALL32 */
|
||||
|
||||
struct part_info {
|
||||
daddr_t p_start;
|
||||
int p_length;
|
||||
};
|
||||
|
||||
/* The following ioctls are for Optical Memory Device */
|
||||
#define DKIOC_EBP_ENABLE (DKIOC|40) /* enable by pass erase on write */
|
||||
#define DKIOC_EBP_DISABLE (DKIOC|41) /* disable by pass erase on write */
|
||||
|
||||
/*
|
||||
* This state enum is the argument passed to the DKIOCSTATE ioctl.
|
||||
*/
|
||||
enum dkio_state { DKIO_NONE, DKIO_EJECTED, DKIO_INSERTED, DKIO_DEV_GONE };
|
||||
|
||||
#define DKIOCGMEDIAINFO (DKIOC|42) /* get information about the media */
|
||||
|
||||
/*
|
||||
* ioctls to read/write mboot info.
|
||||
*/
|
||||
#define DKIOCGMBOOT (DKIOC|43) /* get mboot info */
|
||||
#define DKIOCSMBOOT (DKIOC|44) /* set mboot info */
|
||||
|
||||
/*
|
||||
* ioctl to get the device temperature.
|
||||
*/
|
||||
#define DKIOCGTEMPERATURE (DKIOC|45) /* get temperature */
|
||||
|
||||
/*
|
||||
* Used for providing the temperature.
|
||||
*/
|
||||
|
||||
struct dk_temperature {
|
||||
uint_t dkt_flags; /* Flags */
|
||||
short dkt_cur_temp; /* Current disk temperature */
|
||||
short dkt_ref_temp; /* reference disk temperature */
|
||||
};
|
||||
|
||||
#define DKT_BYPASS_PM 0x1
|
||||
#define DKT_INVALID_TEMP 0xFFFF
|
||||
|
||||
|
||||
/*
|
||||
* Used for Media info or the current profile info
|
||||
*/
|
||||
struct dk_minfo {
|
||||
uint_t dki_media_type; /* Media type or profile info */
|
||||
uint_t dki_lbsize; /* Logical blocksize of media */
|
||||
diskaddr_t dki_capacity; /* Capacity as # of dki_lbsize blks */
|
||||
};
|
||||
|
||||
/*
|
||||
* Media types or profiles known
|
||||
*/
|
||||
#define DK_UNKNOWN 0x00 /* Media inserted - type unknown */
|
||||
|
||||
|
||||
/*
|
||||
* SFF 8090 Specification Version 3, media types 0x01 - 0xfffe are retained to
|
||||
* maintain compatibility with SFF8090. The following define the
|
||||
* optical media type.
|
||||
*/
|
||||
#define DK_REMOVABLE_DISK 0x02 /* Removable Disk */
|
||||
#define DK_MO_ERASABLE 0x03 /* MO Erasable */
|
||||
#define DK_MO_WRITEONCE 0x04 /* MO Write once */
|
||||
#define DK_AS_MO 0x05 /* AS MO */
|
||||
#define DK_CDROM 0x08 /* CDROM */
|
||||
#define DK_CDR 0x09 /* CD-R */
|
||||
#define DK_CDRW 0x0A /* CD-RW */
|
||||
#define DK_DVDROM 0x10 /* DVD-ROM */
|
||||
#define DK_DVDR 0x11 /* DVD-R */
|
||||
#define DK_DVDRAM 0x12 /* DVD_RAM or DVD-RW */
|
||||
|
||||
/*
|
||||
* Media types for other rewritable magnetic media
|
||||
*/
|
||||
#define DK_FIXED_DISK 0x10001 /* Fixed disk SCSI or otherwise */
|
||||
#define DK_FLOPPY 0x10002 /* Floppy media */
|
||||
#define DK_ZIP 0x10003 /* IOMEGA ZIP media */
|
||||
#define DK_JAZ 0x10004 /* IOMEGA JAZ media */
|
||||
|
||||
#define DKIOCSETEFI (DKIOC|17) /* Set EFI info */
|
||||
#define DKIOCGETEFI (DKIOC|18) /* Get EFI info */
|
||||
|
||||
#define DKIOCPARTITION (DKIOC|9) /* Get partition info */
|
||||
|
||||
/*
|
||||
* Ioctls to get/set volume capabilities related to Logical Volume Managers.
|
||||
* They include the ability to get/set capabilities and to issue a read to a
|
||||
* specific underlying device of a replicated device.
|
||||
*/
|
||||
|
||||
#define DKIOCGETVOLCAP (DKIOC | 25) /* Get volume capabilities */
|
||||
#define DKIOCSETVOLCAP (DKIOC | 26) /* Set volume capabilities */
|
||||
#define DKIOCDMR (DKIOC | 27) /* Issue a directed read */
|
||||
|
||||
typedef uint_t volcapinfo_t;
|
||||
|
||||
typedef uint_t volcapset_t;
|
||||
|
||||
#define DKV_ABR_CAP 0x00000001 /* Support Appl.Based Recovery */
|
||||
#define DKV_DMR_CAP 0x00000002 /* Support Directed Mirror Read */
|
||||
|
||||
typedef struct volcap {
|
||||
volcapinfo_t vc_info; /* Capabilities available */
|
||||
volcapset_t vc_set; /* Capabilities set */
|
||||
} volcap_t;
|
||||
|
||||
#define VOL_SIDENAME 256
|
||||
|
||||
typedef struct vol_directed_rd {
|
||||
int vdr_flags;
|
||||
offset_t vdr_offset;
|
||||
size_t vdr_nbytes;
|
||||
size_t vdr_bytesread;
|
||||
void *vdr_data;
|
||||
int vdr_side;
|
||||
char vdr_side_name[VOL_SIDENAME];
|
||||
} vol_directed_rd_t;
|
||||
|
||||
#define DKV_SIDE_INIT (-1)
|
||||
#define DKV_DMR_NEXT_SIDE 0x00000001
|
||||
#define DKV_DMR_DONE 0x00000002
|
||||
#define DKV_DMR_ERROR 0x00000004
|
||||
#define DKV_DMR_SUCCESS 0x00000008
|
||||
#define DKV_DMR_SHORT 0x00000010
|
||||
|
||||
#ifdef _MULTI_DATAMODEL
|
||||
#if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
|
||||
#pragma pack(4)
|
||||
#endif
|
||||
typedef struct vol_directed_rd32 {
|
||||
int32_t vdr_flags;
|
||||
offset_t vdr_offset; /* 64-bit element on 32-bit alignment */
|
||||
size32_t vdr_nbytes;
|
||||
size32_t vdr_bytesread;
|
||||
caddr32_t vdr_data;
|
||||
int32_t vdr_side;
|
||||
char vdr_side_name[VOL_SIDENAME];
|
||||
} vol_directed_rd32_t;
|
||||
#if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
|
||||
#pragma pack()
|
||||
#endif
|
||||
#endif /* _MULTI_DATAMODEL */
|
||||
|
||||
/*
|
||||
* The ioctl is used to fetch disk's device type, vendor ID,
|
||||
* model number/product ID, firmware revision and serial number together.
|
||||
*
|
||||
* Currently there are two device types - DKD_ATA_TYPE which means the
|
||||
* disk is driven by cmdk/ata or dad/uata driver, and DKD_SCSI_TYPE
|
||||
* which means the disk is driven by sd/scsi hba driver.
|
||||
*/
|
||||
#define DKIOC_GETDISKID (DKIOC|46)
|
||||
|
||||
/* These two labels are for dkd_dtype of dk_disk_id_t */
|
||||
#define DKD_ATA_TYPE 0x01 /* ATA disk or legacy mode SATA disk */
|
||||
#define DKD_SCSI_TYPE 0x02 /* SCSI disk or native mode SATA disk */
|
||||
|
||||
#define DKD_ATA_MODEL 40 /* model number length */
|
||||
#define DKD_ATA_FWVER 8 /* firmware revision length */
|
||||
#define DKD_ATA_SERIAL 20 /* serial number length */
|
||||
|
||||
#define DKD_SCSI_VENDOR 8 /* vendor ID length */
|
||||
#define DKD_SCSI_PRODUCT 16 /* product ID length */
|
||||
#define DKD_SCSI_REVLEVEL 4 /* revision level length */
|
||||
#define DKD_SCSI_SERIAL 12 /* serial number length */
|
||||
|
||||
/*
|
||||
* The argument type for DKIOC_GETDISKID ioctl.
|
||||
*/
|
||||
typedef struct dk_disk_id {
|
||||
uint_t dkd_dtype;
|
||||
union {
|
||||
struct {
|
||||
char dkd_amodel[DKD_ATA_MODEL]; /* 40 bytes */
|
||||
char dkd_afwver[DKD_ATA_FWVER]; /* 8 bytes */
|
||||
char dkd_aserial[DKD_ATA_SERIAL]; /* 20 bytes */
|
||||
} ata_disk_id;
|
||||
struct {
|
||||
char dkd_svendor[DKD_SCSI_VENDOR]; /* 8 bytes */
|
||||
char dkd_sproduct[DKD_SCSI_PRODUCT]; /* 16 bytes */
|
||||
char dkd_sfwver[DKD_SCSI_REVLEVEL]; /* 4 bytes */
|
||||
char dkd_sserial[DKD_SCSI_SERIAL]; /* 12 bytes */
|
||||
} scsi_disk_id;
|
||||
} disk_id;
|
||||
} dk_disk_id_t;
|
||||
|
||||
/*
|
||||
* The ioctl is used to update the firmware of device.
|
||||
*/
|
||||
#define DKIOC_UPDATEFW (DKIOC|47)
|
||||
|
||||
/* The argument type for DKIOC_UPDATEFW ioctl */
|
||||
typedef struct dk_updatefw {
|
||||
caddr_t dku_ptrbuf; /* pointer to firmware buf */
|
||||
uint_t dku_size; /* firmware buf length */
|
||||
uint8_t dku_type; /* firmware update type */
|
||||
} dk_updatefw_t;
|
||||
|
||||
#ifdef _SYSCALL32
|
||||
typedef struct dk_updatefw_32 {
|
||||
caddr32_t dku_ptrbuf; /* pointer to firmware buf */
|
||||
uint_t dku_size; /* firmware buf length */
|
||||
uint8_t dku_type; /* firmware update type */
|
||||
} dk_updatefw_32_t;
|
||||
#endif /* _SYSCALL32 */
|
||||
|
||||
/*
|
||||
* firmware update type - temporary or permanent use
|
||||
*/
|
||||
#define FW_TYPE_TEMP 0x0 /* temporary use */
|
||||
#define FW_TYPE_PERM 0x1 /* permanent use */
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* _SYS_DKIO_H */
|
||||
|
|
@ -0,0 +1,268 @@
|
|||
/*
|
||||
* CDDL HEADER START
|
||||
*
|
||||
* The contents of this file are subject to the terms of the
|
||||
* Common Development and Distribution License, Version 1.0 only
|
||||
* (the "License"). You may not use this file except in compliance
|
||||
* with the License.
|
||||
*
|
||||
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
||||
* or http://www.opensolaris.org/os/licensing.
|
||||
* See the License for the specific language governing permissions
|
||||
* and limitations under the License.
|
||||
*
|
||||
* When distributing Covered Code, include this CDDL HEADER in each
|
||||
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
||||
* If applicable, add the following below this CDDL HEADER, with the
|
||||
* fields enclosed by brackets "[]" replaced with your own identifying
|
||||
* information: Portions Copyright [yyyy] [name of copyright owner]
|
||||
*
|
||||
* CDDL HEADER END
|
||||
*/
|
||||
/*
|
||||
* Copyright 1990-2002 Sun Microsystems, Inc. All rights reserved.
|
||||
* Use is subject to license terms.
|
||||
*/
|
||||
|
||||
#ifndef _SYS_DKLABEL_H
|
||||
#define _SYS_DKLABEL_H
|
||||
|
||||
|
||||
|
||||
#include <sys/isa_defs.h>
|
||||
#include <sys/types32.h>
|
||||
#include <sys/isa_defs.h>
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Miscellaneous defines
|
||||
*/
|
||||
#define DKL_MAGIC 0xDABE /* magic number */
|
||||
#define FKL_MAGIC 0xff /* magic number for DOS floppies */
|
||||
|
||||
#if defined(_SUNOS_VTOC_16)
|
||||
#define NDKMAP 16 /* # of logical partitions */
|
||||
#define DK_LABEL_LOC 1 /* location of disk label */
|
||||
#elif defined(_SUNOS_VTOC_8)
|
||||
#define NDKMAP 8 /* # of logical partitions */
|
||||
#define DK_LABEL_LOC 0 /* location of disk label */
|
||||
#else
|
||||
#error "No VTOC format defined."
|
||||
#endif
|
||||
|
||||
#define LEN_DKL_ASCII 128 /* length of dkl_asciilabel */
|
||||
#define LEN_DKL_VVOL 8 /* length of v_volume */
|
||||
#define DK_LABEL_SIZE 512 /* size of disk label */
|
||||
#define DK_MAX_BLOCKS 0x7fffffff /* max # of blocks handled */
|
||||
|
||||
/*
|
||||
* Reserve two cylinders on SCSI disks.
|
||||
* One is for the backup disk label and the other is for the deviceid.
|
||||
*
|
||||
* IPI disks only reserve one cylinder, but they will go away soon.
|
||||
* CDROMs do not reserve any cylinders.
|
||||
*/
|
||||
#define DK_ACYL 2
|
||||
|
||||
/*
|
||||
* Format of a Sun disk label.
|
||||
* Resides in cylinder 0, head 0, sector 0.
|
||||
*
|
||||
* sizeof (struct dk_label) should be 512 (the current sector size),
|
||||
* but should the sector size increase, this structure should remain
|
||||
* at the beginning of the sector.
|
||||
*/
|
||||
|
||||
/*
|
||||
* partition headers: section 1
|
||||
* Returned in struct dk_allmap by ioctl DKIOC[SG]APART (dkio(7I))
|
||||
*/
|
||||
struct dk_map {
|
||||
daddr_t dkl_cylno; /* starting cylinder */
|
||||
daddr_t dkl_nblk; /* number of blocks; if == 0, */
|
||||
/* partition is undefined */
|
||||
};
|
||||
|
||||
/*
|
||||
* partition headers: section 1
|
||||
* Fixed size for on-disk dk_label
|
||||
*/
|
||||
struct dk_map32 {
|
||||
daddr32_t dkl_cylno; /* starting cylinder */
|
||||
daddr32_t dkl_nblk; /* number of blocks; if == 0, */
|
||||
/* partition is undefined */
|
||||
};
|
||||
|
||||
/*
|
||||
* partition headers: section 2,
|
||||
* brought over from AT&T SVr4 vtoc structure.
|
||||
*/
|
||||
struct dk_map2 {
|
||||
uint16_t p_tag; /* ID tag of partition */
|
||||
uint16_t p_flag; /* permission flag */
|
||||
};
|
||||
|
||||
struct dkl_partition {
|
||||
uint16_t p_tag; /* ID tag of partition */
|
||||
uint16_t p_flag; /* permision flags */
|
||||
daddr32_t p_start; /* start sector no of partition */
|
||||
int32_t p_size; /* # of blocks in partition */
|
||||
};
|
||||
|
||||
|
||||
/*
|
||||
* VTOC inclusions from AT&T SVr4
|
||||
* Fixed sized types for on-disk VTOC
|
||||
*/
|
||||
|
||||
struct dk_vtoc {
|
||||
#if defined(_SUNOS_VTOC_16)
|
||||
uint32_t v_bootinfo[3]; /* info for mboot (unsupported) */
|
||||
uint32_t v_sanity; /* to verify vtoc sanity */
|
||||
uint32_t v_version; /* layout version */
|
||||
char v_volume[LEN_DKL_VVOL]; /* volume name */
|
||||
uint16_t v_sectorsz; /* sector size in bytes */
|
||||
uint16_t v_nparts; /* number of partitions */
|
||||
uint32_t v_reserved[10]; /* free space */
|
||||
struct dkl_partition v_part[NDKMAP]; /* partition headers */
|
||||
time32_t timestamp[NDKMAP]; /* partition timestamp (unsupported) */
|
||||
char v_asciilabel[LEN_DKL_ASCII]; /* for compatibility */
|
||||
#elif defined(_SUNOS_VTOC_8)
|
||||
uint32_t v_version; /* layout version */
|
||||
char v_volume[LEN_DKL_VVOL]; /* volume name */
|
||||
uint16_t v_nparts; /* number of partitions */
|
||||
struct dk_map2 v_part[NDKMAP]; /* partition hdrs, sec 2 */
|
||||
uint32_t v_bootinfo[3]; /* info needed by mboot */
|
||||
uint32_t v_sanity; /* to verify vtoc sanity */
|
||||
uint32_t v_reserved[10]; /* free space */
|
||||
time32_t v_timestamp[NDKMAP]; /* partition timestamp */
|
||||
#else
|
||||
#error "No VTOC format defined."
|
||||
#endif
|
||||
};
|
||||
|
||||
/*
|
||||
* define the amount of disk label padding needed to make
|
||||
* the entire structure occupy 512 bytes.
|
||||
*/
|
||||
#if defined(_SUNOS_VTOC_16)
|
||||
#define LEN_DKL_PAD (DK_LABEL_SIZE - \
|
||||
((sizeof (struct dk_vtoc) + \
|
||||
(4 * sizeof (uint32_t)) + \
|
||||
(12 * sizeof (uint16_t)) + \
|
||||
(2 * (sizeof (uint16_t))))))
|
||||
#elif defined(_SUNOS_VTOC_8)
|
||||
#define LEN_DKL_PAD (DK_LABEL_SIZE \
|
||||
- ((LEN_DKL_ASCII) + \
|
||||
(sizeof (struct dk_vtoc)) + \
|
||||
(sizeof (struct dk_map32) * NDKMAP) + \
|
||||
(14 * (sizeof (uint16_t))) + \
|
||||
(2 * (sizeof (uint16_t)))))
|
||||
#else
|
||||
#error "No VTOC format defined."
|
||||
#endif
|
||||
|
||||
|
||||
struct dk_label {
|
||||
#if defined(_SUNOS_VTOC_16)
|
||||
struct dk_vtoc dkl_vtoc; /* vtoc inclusions from AT&T SVr4 */
|
||||
uint32_t dkl_pcyl; /* # of physical cylinders */
|
||||
uint32_t dkl_ncyl; /* # of data cylinders */
|
||||
uint16_t dkl_acyl; /* # of alternate cylinders */
|
||||
uint16_t dkl_bcyl; /* cyl offset (for fixed head area) */
|
||||
uint32_t dkl_nhead; /* # of heads */
|
||||
uint32_t dkl_nsect; /* # of data sectors per track */
|
||||
uint16_t dkl_intrlv; /* interleave factor */
|
||||
uint16_t dkl_skew; /* skew factor */
|
||||
uint16_t dkl_apc; /* alternates per cyl (SCSI only) */
|
||||
uint16_t dkl_rpm; /* revolutions per minute */
|
||||
uint16_t dkl_write_reinstruct; /* # sectors to skip, writes */
|
||||
uint16_t dkl_read_reinstruct; /* # sectors to skip, reads */
|
||||
uint16_t dkl_extra[4]; /* for compatible expansion */
|
||||
char dkl_pad[LEN_DKL_PAD]; /* unused part of 512 bytes */
|
||||
#elif defined(_SUNOS_VTOC_8)
|
||||
char dkl_asciilabel[LEN_DKL_ASCII]; /* for compatibility */
|
||||
struct dk_vtoc dkl_vtoc; /* vtoc inclusions from AT&T SVr4 */
|
||||
uint16_t dkl_write_reinstruct; /* # sectors to skip, writes */
|
||||
uint16_t dkl_read_reinstruct; /* # sectors to skip, reads */
|
||||
char dkl_pad[LEN_DKL_PAD]; /* unused part of 512 bytes */
|
||||
uint16_t dkl_rpm; /* rotations per minute */
|
||||
uint16_t dkl_pcyl; /* # physical cylinders */
|
||||
uint16_t dkl_apc; /* alternates per cylinder */
|
||||
uint16_t dkl_obs1; /* obsolete */
|
||||
uint16_t dkl_obs2; /* obsolete */
|
||||
uint16_t dkl_intrlv; /* interleave factor */
|
||||
uint16_t dkl_ncyl; /* # of data cylinders */
|
||||
uint16_t dkl_acyl; /* # of alternate cylinders */
|
||||
uint16_t dkl_nhead; /* # of heads in this partition */
|
||||
uint16_t dkl_nsect; /* # of 512 byte sectors per track */
|
||||
uint16_t dkl_obs3; /* obsolete */
|
||||
uint16_t dkl_obs4; /* obsolete */
|
||||
struct dk_map32 dkl_map[NDKMAP]; /* logical partition headers */
|
||||
#else
|
||||
#error "No VTOC format defined."
|
||||
#endif
|
||||
uint16_t dkl_magic; /* identifies this label format */
|
||||
uint16_t dkl_cksum; /* xor checksum of sector */
|
||||
};
|
||||
|
||||
#if defined(_SUNOS_VTOC_16)
|
||||
#define dkl_asciilabel dkl_vtoc.v_asciilabel
|
||||
#define v_timestamp timestamp
|
||||
|
||||
#elif defined(_SUNOS_VTOC_8)
|
||||
|
||||
/*
|
||||
* These defines are for historic compatibility with old drivers.
|
||||
*/
|
||||
#define dkl_gap1 dkl_obs1 /* used to be gap1 */
|
||||
#define dkl_gap2 dkl_obs2 /* used to be gap2 */
|
||||
#define dkl_bhead dkl_obs3 /* used to be label head offset */
|
||||
#define dkl_ppart dkl_obs4 /* used to by physical partition */
|
||||
#else
|
||||
#error "No VTOC format defined."
|
||||
#endif
|
||||
|
||||
struct fk_label { /* DOS floppy label */
|
||||
uchar_t fkl_type;
|
||||
uchar_t fkl_magich;
|
||||
uchar_t fkl_magicl;
|
||||
uchar_t filler;
|
||||
};
|
||||
|
||||
/*
|
||||
* Layout of stored fabricated device id (on-disk)
|
||||
*/
|
||||
#define DK_DEVID_BLKSIZE (512)
|
||||
#define DK_DEVID_SIZE (DK_DEVID_BLKSIZE - ((sizeof (uchar_t) * 7)))
|
||||
#define DK_DEVID_REV_MSB (0)
|
||||
#define DK_DEVID_REV_LSB (1)
|
||||
|
||||
struct dk_devid {
|
||||
uchar_t dkd_rev_hi; /* revision (MSB) */
|
||||
uchar_t dkd_rev_lo; /* revision (LSB) */
|
||||
uchar_t dkd_flags; /* flags (not used yet) */
|
||||
uchar_t dkd_devid[DK_DEVID_SIZE]; /* devid stored here */
|
||||
uchar_t dkd_checksum3; /* checksum (MSB) */
|
||||
uchar_t dkd_checksum2;
|
||||
uchar_t dkd_checksum1;
|
||||
uchar_t dkd_checksum0; /* checksum (LSB) */
|
||||
};
|
||||
|
||||
#define DKD_GETCHKSUM(dkd) ((dkd)->dkd_checksum3 << 24) + \
|
||||
((dkd)->dkd_checksum2 << 16) + \
|
||||
((dkd)->dkd_checksum1 << 8) + \
|
||||
((dkd)->dkd_checksum0)
|
||||
|
||||
#define DKD_FORMCHKSUM(c, dkd) (dkd)->dkd_checksum3 = hibyte(hiword((c))); \
|
||||
(dkd)->dkd_checksum2 = lobyte(hiword((c))); \
|
||||
(dkd)->dkd_checksum1 = hibyte(loword((c))); \
|
||||
(dkd)->dkd_checksum0 = lobyte(loword((c)));
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* _SYS_DKLABEL_H */
|
||||
Loading…
Reference in New Issue