mirror of https://github.com/acidanthera/audk.git
96 lines
2.2 KiB
C
96 lines
2.2 KiB
C
/** @file
|
|
BlockFront functions and types declarations.
|
|
|
|
Copyright (C) 2014, Citrix Ltd.
|
|
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
**/
|
|
#include "XenPvBlkDxe.h"
|
|
|
|
#include <IndustryStandard/Xen/event_channel.h>
|
|
#include <IndustryStandard/Xen/io/blkif.h>
|
|
|
|
typedef struct _XEN_BLOCK_FRONT_DEVICE XEN_BLOCK_FRONT_DEVICE;
|
|
typedef struct _XEN_BLOCK_FRONT_IO XEN_BLOCK_FRONT_IO;
|
|
|
|
struct _XEN_BLOCK_FRONT_IO
|
|
{
|
|
XEN_BLOCK_FRONT_DEVICE *Dev;
|
|
UINT8 *Buffer;
|
|
UINTN Size;
|
|
UINTN Sector; ///< 512 bytes sector.
|
|
|
|
grant_ref_t GrantRef[BLKIF_MAX_SEGMENTS_PER_REQUEST];
|
|
INT32 NumRef;
|
|
|
|
EFI_STATUS Status;
|
|
};
|
|
|
|
typedef struct
|
|
{
|
|
UINT64 Sectors;
|
|
UINT32 SectorSize;
|
|
UINT32 VDiskInfo;
|
|
BOOLEAN ReadWrite;
|
|
BOOLEAN CdRom;
|
|
BOOLEAN FeatureBarrier;
|
|
BOOLEAN FeatureFlushCache;
|
|
} XEN_BLOCK_FRONT_MEDIA_INFO;
|
|
|
|
#define XEN_BLOCK_FRONT_SIGNATURE SIGNATURE_32 ('X', 'p', 'v', 'B')
|
|
struct _XEN_BLOCK_FRONT_DEVICE {
|
|
UINT32 Signature;
|
|
EFI_BLOCK_IO_PROTOCOL BlockIo;
|
|
domid_t DomainId;
|
|
|
|
blkif_front_ring_t Ring;
|
|
grant_ref_t RingRef;
|
|
evtchn_port_t EventChannel;
|
|
blkif_vdev_t DeviceId;
|
|
|
|
CONST CHAR8 *NodeName;
|
|
XEN_BLOCK_FRONT_MEDIA_INFO MediaInfo;
|
|
|
|
VOID *StateWatchToken;
|
|
|
|
XENBUS_PROTOCOL *XenBusIo;
|
|
};
|
|
|
|
#define XEN_BLOCK_FRONT_FROM_BLOCK_IO(b) \
|
|
CR (b, XEN_BLOCK_FRONT_DEVICE, BlockIo, XEN_BLOCK_FRONT_SIGNATURE)
|
|
|
|
EFI_STATUS
|
|
XenPvBlockFrontInitialization (
|
|
IN XENBUS_PROTOCOL *XenBusIo,
|
|
IN CONST CHAR8 *NodeName,
|
|
OUT XEN_BLOCK_FRONT_DEVICE **DevPtr
|
|
);
|
|
|
|
VOID
|
|
XenPvBlockFrontShutdown (
|
|
IN XEN_BLOCK_FRONT_DEVICE *Dev
|
|
);
|
|
|
|
VOID
|
|
XenPvBlockAsyncIo (
|
|
IN OUT XEN_BLOCK_FRONT_IO *IoData,
|
|
IN BOOLEAN IsWrite
|
|
);
|
|
|
|
EFI_STATUS
|
|
XenPvBlockIo (
|
|
IN OUT XEN_BLOCK_FRONT_IO *IoData,
|
|
IN BOOLEAN IsWrite
|
|
);
|
|
|
|
VOID
|
|
XenPvBlockAsyncIoPoll (
|
|
IN XEN_BLOCK_FRONT_DEVICE *Dev
|
|
);
|
|
|
|
VOID
|
|
XenPvBlockSync (
|
|
IN XEN_BLOCK_FRONT_DEVICE *Dev
|
|
);
|