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feature/arm-support
darling-xnu/bsd/sys/disk.h
Thomas A cdbc10b677 Upload xnu-7195.141.2 Source
2023-05-16 21:41:14 -07:00

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/*
* Copyright (c) 1998-2014 Apple Computer, Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#ifndef _SYS_DISK_H_
#define _SYS_DISK_H_
#include <stdint.h>
#include <sys/ioctl.h>
#ifdef XNU_KERNEL_PRIVATE
#include <mach/boolean.h>
#endif /* XNU_KERNEL_PRIVATE */
/*
* Definitions
*
* ioctl description
* ------------------------------------- ---------------------------------------
* DKIOCEJECT eject media
* DKIOCSYNCHRONIZE flush media
*
* DKIOCFORMAT format media
* DKIOCGETFORMATCAPACITIES get media's formattable capacities
*
* DKIOCGETBLOCKSIZE get media's block size
* DKIOCGETBLOCKCOUNT get media's block count
* DKIOCGETFIRMWAREPATH get media's firmware path
*
* DKIOCISFORMATTED is media formatted?
* DKIOCISWRITABLE is media writable?
*
* DKIOCREQUESTIDLE idle media
* DKIOCUNMAP delete unused data
*
* DKIOCGETLOCATION get device's physical location
*
* DKIOCGETMAXBLOCKCOUNTREAD get maximum block count for reads
* DKIOCGETMAXBLOCKCOUNTWRITE get maximum block count for writes
* DKIOCGETMAXBYTECOUNTREAD get maximum byte count for reads
* DKIOCGETMAXBYTECOUNTWRITE get maximum byte count for writes
*
* DKIOCGETMAXSEGMENTCOUNTREAD get maximum segment count for reads
* DKIOCGETMAXSEGMENTCOUNTWRITE get maximum segment count for writes
* DKIOCGETMAXSEGMENTBYTECOUNTREAD get maximum segment byte count for reads
* DKIOCGETMAXSEGMENTBYTECOUNTWRITE get maximum segment byte count for writes
*
* DKIOCGETMINSEGMENTALIGNMENTBYTECOUNT get minimum segment alignment in bytes
* DKIOCGETMAXSEGMENTADDRESSABLEBITCOUNT get maximum segment width in bits
*
* DKIOCGETFEATURES get device's feature set
* DKIOCGETPHYSICALBLOCKSIZE get device's block size
* DKIOCGETCOMMANDPOOLSIZE get device's queue depth
*
* DKIOCGETPROVISIONSTATUS get device's block provision status
* DKIOCGETIOMINSATURATIONBYTECOUNT get minimum byte count to saturate storage bandwidth
*
* DKIOCGETERRORDESCRIPTION get description of any drive error
*
* DKIOCGETMAXSWAPWRITE get maximum swap file write per day in bytes
*/
#define DK_FEATURE_BARRIER 0x00000002
#define DK_FEATURE_PRIORITY 0x00000004
#define DK_FEATURE_UNMAP 0x00000010
#define DK_SYNCHRONIZE_OPTION_BARRIER 0x00000002
typedef struct{
uint64_t offset;
uint64_t length;
} dk_extent_t;
typedef struct{
char path[128];
} dk_firmware_path_t;
typedef struct{
uint64_t blockCount;
uint32_t blockSize;
uint8_t reserved0096[4]; /* reserved, clear to zero */
} dk_format_capacity_t;
typedef struct{
dk_format_capacity_t * capacities;
uint32_t capacitiesCount; /* use zero to probe count */
#ifdef __LP64__
uint8_t reserved0096[4]; /* reserved, clear to zero */
#else /* !__LP64__ */
uint8_t reserved0064[8]; /* reserved, clear to zero */
#endif /* !__LP64__ */
} dk_format_capacities_t;
typedef struct{
uint64_t offset;
uint64_t length;
uint32_t options;
uint8_t reserved0160[4]; /* reserved, clear to zero */
} dk_synchronize_t;
typedef struct{
dk_extent_t * extents;
uint32_t extentsCount;
uint32_t options;
#ifndef __LP64__
uint8_t reserved0096[4]; /* reserved, clear to zero */
#endif /* !__LP64__ */
} dk_unmap_t;
typedef struct{
uint64_t flags;
uint64_t hotfile_size; /* in bytes */
uint64_t hibernate_minsize;
uint64_t swapfile_pinning;
uint64_t padding[4];
} dk_corestorage_info_t;
#define DK_CORESTORAGE_PIN_YOUR_METADATA 0x00000001
#define DK_CORESTORAGE_ENABLE_HOTFILES 0x00000002
#define DK_CORESTORAGE_PIN_YOUR_SWAPFILE 0x00000004
#define DK_PROVISION_TYPE_MAPPED 0x00
#define DK_PROVISION_TYPE_DEALLOCATED 0x01
#define DK_PROVISION_TYPE_ANCHORED 0x02
typedef struct{
uint64_t offset;
uint64_t length;
uint8_t provisionType;
uint8_t reserved[7];
} dk_provision_extent_t;
typedef struct{
uint64_t offset; /* input: logical byte offset */
uint64_t length; /* input: byte length, 0 for whole length */
uint64_t options; /* reserved, clear to zero */
uint32_t reserved; /* not used */
uint32_t extentsCount; /* input/output: count for extents */
dk_provision_extent_t * extents; /* output: provision extents */
} dk_provision_status_t;
typedef struct{
uint64_t options; /* reserved, clear to zero */
uint64_t reserved; /* reserved, clear to zero */
uint64_t description_size;
char * description;
} dk_error_description_t;
#define DK_LOCATION_INTERNAL 0x00000000
#define DK_LOCATION_EXTERNAL 0x00000001
#ifdef KERNEL
#ifdef PRIVATE
/* Definitions of option bits for dk_unmap_t */
#define _DK_UNMAP_INITIALIZE 0x00000100
#endif /* PRIVATE */
#endif /* KERNEL */
#define DKIOCEJECT _IO('d', 21)
#define DKIOCSYNCHRONIZE _IOW('d', 22, dk_synchronize_t)
#define DKIOCFORMAT _IOW('d', 26, dk_format_capacity_t)
#define DKIOCGETFORMATCAPACITIES _IOWR('d', 26, dk_format_capacities_t)
#define DKIOCGETBLOCKSIZE _IOR('d', 24, uint32_t)
#define DKIOCGETBLOCKCOUNT _IOR('d', 25, uint64_t)
#define DKIOCGETFIRMWAREPATH _IOR('d', 28, dk_firmware_path_t)
#define DKIOCISFORMATTED _IOR('d', 23, uint32_t)
#define DKIOCISWRITABLE _IOR('d', 29, uint32_t)
#define DKIOCREQUESTIDLE _IO('d', 30)
#define DKIOCUNMAP _IOW('d', 31, dk_unmap_t)
#define DKIOCCORESTORAGE _IOR('d', 32, dk_corestorage_info_t)
#define DKIOCGETLOCATION _IOR('d', 33, uint64_t)
#define DKIOCGETMAXBLOCKCOUNTREAD _IOR('d', 64, uint64_t)
#define DKIOCGETMAXBLOCKCOUNTWRITE _IOR('d', 65, uint64_t)
#define DKIOCGETMAXBYTECOUNTREAD _IOR('d', 70, uint64_t)
#define DKIOCGETMAXBYTECOUNTWRITE _IOR('d', 71, uint64_t)
#define DKIOCGETMAXSEGMENTCOUNTREAD _IOR('d', 66, uint64_t)
#define DKIOCGETMAXSEGMENTCOUNTWRITE _IOR('d', 67, uint64_t)
#define DKIOCGETMAXSEGMENTBYTECOUNTREAD _IOR('d', 68, uint64_t)
#define DKIOCGETMAXSEGMENTBYTECOUNTWRITE _IOR('d', 69, uint64_t)
#define DKIOCGETMINSEGMENTALIGNMENTBYTECOUNT _IOR('d', 74, uint64_t)
#define DKIOCGETMAXSEGMENTADDRESSABLEBITCOUNT _IOR('d', 75, uint64_t)
#define DKIOCGETFEATURES _IOR('d', 76, uint32_t)
#define DKIOCGETPHYSICALBLOCKSIZE _IOR('d', 77, uint32_t)
#define DKIOCGETCOMMANDPOOLSIZE _IOR('d', 78, uint32_t)
#define DKIOCGETPROVISIONSTATUS _IOWR('d', 79, dk_provision_status_t)
#define DKIOCGETERRORDESCRIPTION _IOR('d', 80, dk_error_description_t)
#define DKIOCSYNCHRONIZECACHE _IO('d', 22)
#ifdef KERNEL
#define DK_FEATURE_FORCE_UNIT_ACCESS 0x00000001
#define DK_ENCRYPTION_TYPE_AES_CBC 1
#define DK_ENCRYPTION_TYPE_AES_XEX 2
#define DK_ENCRYPTION_TYPE_AES_XTS 3
#define DK_TIER_MASK 0xC0
#define DK_TIER_SHIFT 6
#define DK_TIER_TO_PRIORITY(tier) (((tier) << DK_TIER_SHIFT) | ~DK_TIER_MASK)
#define DK_PRIORITY_TO_TIER(priority) ((priority) >> DK_TIER_SHIFT)
typedef struct{
uint64_t offset;
uint64_t length;
uint8_t reserved0128[12]; /* reserved, clear to zero */
dev_t dev;
} dk_physical_extent_t;
typedef struct{
dk_extent_t * extents;
uint32_t extentsCount;
uint8_t tier;
#ifdef __LP64__
uint8_t reserved0104[3]; /* reserved, clear to zero */
#else /* !__LP64__ */
uint8_t reserved0072[7]; /* reserved, clear to zero */
#endif /* !__LP64__ */
} dk_set_tier_t;
#define DKIOCSETBLOCKSIZE _IOW('d', 24, uint32_t)
#define DKIOCGETBSDUNIT _IOR('d', 27, uint32_t)
#define DKIOCISSOLIDSTATE _IOR('d', 79, uint32_t)
#define DKIOCISVIRTUAL _IOR('d', 72, uint32_t)
#define DKIOCGETBASE _IOR('d', 73, uint64_t)
#define DKIOCGETTHROTTLEMASK _IOR('d', 80, uint64_t)
#define DKIOCLOCKPHYSICALEXTENTS _IO('d', 81)
#define DKIOCGETPHYSICALEXTENT _IOWR('d', 82, dk_physical_extent_t)
#define DKIOCUNLOCKPHYSICALEXTENTS _IO('d', 83)
#define DKIOCSETTIER _IOW('d', 85, dk_set_tier_t)
#define DKIOCGETENCRYPTIONTYPE _IOR('d', 86, uint32_t)
#define DKIOCISLOWPOWERMODE _IOR('d', 87, uint32_t)
#define DKIOCGETIOMINSATURATIONBYTECOUNT _IOR('d', 88, uint32_t)
#ifdef XNU_KERNEL_PRIVATE
typedef struct{
boolean_t mi_mdev; /* Is this a memdev device? */
boolean_t mi_phys; /* Physical memory? */
uint32_t mi_base; /* Base page number of the device? */
uint64_t mi_size; /* Size of the device (in ) */
} dk_memdev_info_t;
typedef dk_memdev_info_t memdev_info_t;
#define DKIOCGETMEMDEVINFO _IOR('d', 90, dk_memdev_info_t)
#endif /* XNU_KERNEL_PRIVATE */
#ifdef PRIVATE
typedef struct _dk_cs_pin {
dk_extent_t cp_extent;
int64_t cp_flags;
} _dk_cs_pin_t;
/* The following are modifiers to _DKIOCCSPINEXTENT/cp_flags operation */
#define _DKIOCCSPINTOFASTMEDIA (0) /* Pin extent to the fast (SSD) media */
#define _DKIOCCSPINFORHIBERNATION (1 << 0) /* Pin of hibernation file, content not preserved */
#define _DKIOCCSPINDISCARDBLACKLIST (1 << 1) /* Hibernation complete/error, stop blacklisting */
#define _DKIOCCSPINTOSLOWMEDIA (1 << 2) /* Pin extent to the slow (HDD) media */
#define _DKIOCCSTEMPORARYPIN (1 << 3) /* Relocate, but do not pin, to indicated media */
#define _DKIOCCSHIBERNATEIMGSIZE (1 << 4) /* Anticipate/Max size of the upcoming hibernate */
#define _DKIOCCSPINFORSWAPFILE (1 << 5) /* Pin of swap file, content not preserved */
#define _DKIOCCSSETLVNAME _IOW('d', 198, char[256])
#define _DKIOCCSPINEXTENT _IOW('d', 199, _dk_cs_pin_t)
#define _DKIOCCSUNPINEXTENT _IOW('d', 200, _dk_cs_pin_t)
#define _DKIOCGETMIGRATIONUNITBYTESIZE _IOR('d', 201, uint32_t)
typedef struct _dk_cs_map {
dk_extent_t cm_extent;
uint64_t cm_bytes_mapped;
} _dk_cs_map_t;
typedef struct _dk_cs_unmap {
dk_extent_t *extents;
uint32_t extentsCount;
uint32_t options;
} _dk_cs_unmap_t;
#define _DKIOCCSMAP _IOWR('d', 202, _dk_cs_map_t)
// No longer used: _DKIOCCSSETFSVNODE (203) & _DKIOCCSGETFREEBYTES (204)
#define _DKIOCCSUNMAP _IOWR('d', 205, _dk_cs_unmap_t)
typedef enum {
DK_APFS_ONE_DEVICE = 1,
DK_APFS_FUSION
} dk_apfs_flavour_t;
#define DKIOCGETAPFSFLAVOUR _IOR('d', 91, dk_apfs_flavour_t)
// Extent's offset and length returned in bytes
typedef struct dk_apfs_wbc_range {
dev_t dev; // Physical device for extents
uint32_t count; // Number of extents
dk_extent_t extents[2]; // Addresses are relative to device we return
} dk_apfs_wbc_range_t;
#define DKIOCAPFSGETWBCRANGE _IOR('d', 92, dk_apfs_wbc_range_t)
#define DKIOCAPFSRELEASEWBCRANGE _IO('d', 93)
#define DKIOCGETMAXSWAPWRITE _IOR('d', 94, uint64_t)
#endif /* PRIVATE */
#endif /* KERNEL */
#ifdef PRIVATE
#define _DKIOCSETSTATIC _IO('d', 84)
#endif /* PRIVATE */
#endif /* _SYS_DISK_H_ */
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