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zfs/lib/libspl/include/sys/dkio.h

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/*
* 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 {
uint32_t p_start;
int p_length;
};
#endif /* _SYSCALL32 */
struct part_info {
uint64_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 */
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