*
*/
+#ifndef _VMBUSPACKETFORMAT_H_
-#pragma once
-
-/* #ifndef PAGE_SIZE */
-/* #if defined(_IA64_) */
-/* #error This does not work for IA64 */
-/* #else */
-/* #define PAGE_SIZE 0x1000 */
-/* #endif */
-/* #endif */
-
-/* allow nameless unions */
-/* #pragma warning(disable : 4201) */
-
-typedef struct
-{
- union
- {
- struct
- {
- volatile u32 In; /* Offset in bytes from the ring base */
- volatile u32 Out; /* Offset in bytes from the ring base */
- };
- volatile long long InOut;
- };
-
-
- /* If the receiving endpoint sets this to some non-zero value, the sending */
- /* endpoint should not send any interrupts. */
-
-
- volatile u32 InterruptMask;
-
-} VMRCB, *PVMRCB;
-
-typedef struct
-{
- union
- {
- struct
- {
- VMRCB Control;
- };
-
- u8 Reserved[PAGE_SIZE];
- };
-
-
- /* Beginning of the ring data. Note: It must be guaranteed that */
- /* this data does not share a page with the control structure. */
-
- u8 Data[1];
-} VMRING, *PVMRING;
-
-#pragma pack(push, 1)
-
-typedef struct
-{
- u16 Type;
- u16 DataOffset8;
- u16 Length8;
- u16 Flags;
- u64 TransactionId;
-} VMPACKET_DESCRIPTOR, *PVMPACKET_DESCRIPTOR;
+typedef struct {
+ u16 Type;
+ u16 DataOffset8;
+ u16 Length8;
+ u16 Flags;
+ u64 TransactionId;
+} __attribute__((packed)) VMPACKET_DESCRIPTOR, *PVMPACKET_DESCRIPTOR;
typedef u32 PREVIOUS_PACKET_OFFSET, *PPREVIOUS_PACKET_OFFSET;
-typedef struct
-{
- PREVIOUS_PACKET_OFFSET PreviousPacketStartOffset;
- VMPACKET_DESCRIPTOR Descriptor;
-} VMPACKET_HEADER, *PVMPACKET_HEADER;
-
-typedef struct
-{
- u32 ByteCount;
- u32 ByteOffset;
-} VMTRANSFER_PAGE_RANGE, *PVMTRANSFER_PAGE_RANGE;
-
-#ifdef __cplusplus
-
-typedef struct _VMTRANSFER_PAGE_PACKET_HEADER : VMPACKET_DESCRIPTOR {
+typedef struct {
+ PREVIOUS_PACKET_OFFSET PreviousPacketStartOffset;
+ VMPACKET_DESCRIPTOR Descriptor;
+} __attribute__((packed)) VMPACKET_HEADER, *PVMPACKET_HEADER;
-#else
+typedef struct {
+ u32 ByteCount;
+ u32 ByteOffset;
+} __attribute__((packed)) VMTRANSFER_PAGE_RANGE, *PVMTRANSFER_PAGE_RANGE;
typedef struct VMTRANSFER_PAGE_PACKET_HEADER {
-
- VMPACKET_DESCRIPTOR d;
-
-#endif
-
- u16 TransferPageSetId;
- bool SenderOwnsSet;
- u8 Reserved;
- u32 RangeCount;
- VMTRANSFER_PAGE_RANGE Ranges[1];
-
-} VMTRANSFER_PAGE_PACKET_HEADER, *PVMTRANSFER_PAGE_PACKET_HEADER;
-
-
-#ifdef __cplusplus
-
-typedef struct _VMGPADL_PACKET_HEADER : VMPACKET_DESCRIPTOR {
-
-#else
+ VMPACKET_DESCRIPTOR d;
+ u16 TransferPageSetId;
+ bool SenderOwnsSet;
+ u8 Reserved;
+ u32 RangeCount;
+ VMTRANSFER_PAGE_RANGE Ranges[1];
+} __attribute__((packed)) VMTRANSFER_PAGE_PACKET_HEADER, *PVMTRANSFER_PAGE_PACKET_HEADER;
typedef struct _VMGPADL_PACKET_HEADER {
-
- VMPACKET_DESCRIPTOR d;
-
-#endif
-
-
- u32 Gpadl;
- u32 Reserved;
-
-} VMGPADL_PACKET_HEADER, *PVMGPADL_PACKET_HEADER;
-
-#ifdef __cplusplus
-
-typedef struct _VMADD_REMOVE_TRANSFER_PAGE_SET : VMPACKET_DESCRIPTOR {
-
-#else
+ VMPACKET_DESCRIPTOR d;
+ u32 Gpadl;
+ u32 Reserved;
+} __attribute__((packed)) VMGPADL_PACKET_HEADER, *PVMGPADL_PACKET_HEADER;
typedef struct _VMADD_REMOVE_TRANSFER_PAGE_SET {
+ VMPACKET_DESCRIPTOR d;
+ u32 Gpadl;
+ u16 TransferPageSetId;
+ u16 Reserved;
+} __attribute__((packed)) VMADD_REMOVE_TRANSFER_PAGE_SET, *PVMADD_REMOVE_TRANSFER_PAGE_SET;
- VMPACKET_DESCRIPTOR d;
-
-#endif
-
- u32 Gpadl;
- u16 TransferPageSetId;
- u16 Reserved;
-
-} VMADD_REMOVE_TRANSFER_PAGE_SET, *PVMADD_REMOVE_TRANSFER_PAGE_SET;
-
-#pragma pack(pop)
-
-
-/* This structure defines a range in guest physical space that can be made */
-/* to look virtually contiguous. */
-
-
+/*
+ * This structure defines a range in guest physical space that can be made to
+ * look virtually contiguous.
+ */
typedef struct _GPA_RANGE {
-
- u32 ByteCount;
- u32 ByteOffset;
- u64 PfnArray[0];
-
+ u32 ByteCount;
+ u32 ByteOffset;
+ u64 PfnArray[0];
} GPA_RANGE, *PGPA_RANGE;
-
-
-#pragma pack(push, 1)
-
-
-/* This is the format for an Establish Gpadl packet, which contains a handle */
-/* by which this GPADL will be known and a set of GPA ranges associated with */
-/* it. This can be converted to a MDL by the guest OS. If there are multiple */
-/* GPA ranges, then the resulting MDL will be "chained," representing multiple */
-/* VA ranges. */
-
-
-#ifdef __cplusplus
-
-typedef struct _VMESTABLISH_GPADL : VMPACKET_DESCRIPTOR {
-
-#else
-
+/*
+ * This is the format for an Establish Gpadl packet, which contains a handle by
+ * which this GPADL will be known and a set of GPA ranges associated with it.
+ * This can be converted to a MDL by the guest OS. If there are multiple GPA
+ * ranges, then the resulting MDL will be "chained," representing multiple VA
+ * ranges.
+ */
typedef struct _VMESTABLISH_GPADL {
+ VMPACKET_DESCRIPTOR d;
+ u32 Gpadl;
+ u32 RangeCount;
+ GPA_RANGE Range[1];
+} __attribute__((packed)) VMESTABLISH_GPADL, *PVMESTABLISH_GPADL;
- VMPACKET_DESCRIPTOR d;
-
-#endif
-
- u32 Gpadl;
- u32 RangeCount;
- GPA_RANGE Range[1];
-
-} VMESTABLISH_GPADL, *PVMESTABLISH_GPADL;
-
-
-
-/* This is the format for a Teardown Gpadl packet, which indicates that the */
-/* GPADL handle in the Establish Gpadl packet will never be referenced again. */
-
-
-#ifdef __cplusplus
-
-typedef struct _VMTEARDOWN_GPADL : VMPACKET_DESCRIPTOR {
-
-#else
-
+/*
+ * This is the format for a Teardown Gpadl packet, which indicates that the
+ * GPADL handle in the Establish Gpadl packet will never be referenced again.
+ */
typedef struct _VMTEARDOWN_GPADL {
+ VMPACKET_DESCRIPTOR d;
+ u32 Gpadl;
+ u32 Reserved; /* for alignment to a 8-byte boundary */
+} __attribute__((packed)) VMTEARDOWN_GPADL, *PVMTEARDOWN_GPADL;
- VMPACKET_DESCRIPTOR d;
-
-#endif
-
- u32 Gpadl;
- u32 Reserved; /* for alignment to a 8-byte boundary */
-} VMTEARDOWN_GPADL, *PVMTEARDOWN_GPADL;
-
-
-
-/* This is the format for a GPA-Direct packet, which contains a set of GPA */
-/* ranges, in addition to commands and/or data. */
-
-
-#ifdef __cplusplus
-
-typedef struct _VMDATA_GPA_DIRECT : VMPACKET_DESCRIPTOR {
-
-#else
-
+/*
+ * This is the format for a GPA-Direct packet, which contains a set of GPA
+ * ranges, in addition to commands and/or data.
+ */
typedef struct _VMDATA_GPA_DIRECT {
-
- VMPACKET_DESCRIPTOR d;
-
-#endif
-
- u32 Reserved;
- u32 RangeCount;
- GPA_RANGE Range[1];
-
-} VMDATA_GPA_DIRECT, *PVMDATA_GPA_DIRECT;
-
-
-
+ VMPACKET_DESCRIPTOR d;
+ u32 Reserved;
+ u32 RangeCount;
+ GPA_RANGE Range[1];
+} __attribute__((packed)) VMDATA_GPA_DIRECT, *PVMDATA_GPA_DIRECT;
/* This is the format for a Additional Data Packet. */
-
-
-#ifdef __cplusplus
-
-typedef struct _VMADDITIONAL_DATA : VMPACKET_DESCRIPTOR {
-
-#else
-
typedef struct _VMADDITIONAL_DATA {
-
- VMPACKET_DESCRIPTOR d;
-
-#endif
-
- u64 TotalBytes;
- u32 ByteOffset;
- u32 ByteCount;
- unsigned char Data[1];
-
-} VMADDITIONAL_DATA, *PVMADDITIONAL_DATA;
-
-
-#pragma pack(pop)
+ VMPACKET_DESCRIPTOR d;
+ u64 TotalBytes;
+ u32 ByteOffset;
+ u32 ByteCount;
+ unsigned char Data[1];
+} __attribute__((packed)) VMADDITIONAL_DATA, *PVMADDITIONAL_DATA;
typedef union {
- VMPACKET_DESCRIPTOR SimpleHeader;
- VMTRANSFER_PAGE_PACKET_HEADER TransferPageHeader;
- VMGPADL_PACKET_HEADER GpadlHeader;
- VMADD_REMOVE_TRANSFER_PAGE_SET AddRemoveTransferPageHeader;
- VMESTABLISH_GPADL EstablishGpadlHeader;
- VMTEARDOWN_GPADL TeardownGpadlHeader;
- VMDATA_GPA_DIRECT DataGpaDirectHeader;
+ VMPACKET_DESCRIPTOR SimpleHeader;
+ VMTRANSFER_PAGE_PACKET_HEADER TransferPageHeader;
+ VMGPADL_PACKET_HEADER GpadlHeader;
+ VMADD_REMOVE_TRANSFER_PAGE_SET AddRemoveTransferPageHeader;
+ VMESTABLISH_GPADL EstablishGpadlHeader;
+ VMTEARDOWN_GPADL TeardownGpadlHeader;
+ VMDATA_GPA_DIRECT DataGpaDirectHeader;
} VMPACKET_LARGEST_POSSIBLE_HEADER, *PVMPACKET_LARGEST_POSSIBLE_HEADER;
-#define VMPACKET_DATA_START_ADDRESS(__packet) \
- (void *)(((unsigned char *)__packet) + ((PVMPACKET_DESCRIPTOR)__packet)->DataOffset8 * 8)
+#define VMPACKET_DATA_START_ADDRESS(__packet) \
+ (void *)(((unsigned char *)__packet) + \
+ ((PVMPACKET_DESCRIPTOR)__packet)->DataOffset8 * 8)
-#define VMPACKET_DATA_LENGTH(__packet) \
- ((((PVMPACKET_DESCRIPTOR)__packet)->Length8 - ((PVMPACKET_DESCRIPTOR)__packet)->DataOffset8) * 8)
+#define VMPACKET_DATA_LENGTH(__packet) \
+ ((((PVMPACKET_DESCRIPTOR)__packet)->Length8 - \
+ ((PVMPACKET_DESCRIPTOR)__packet)->DataOffset8) * 8)
-#define VMPACKET_TRANSFER_MODE(__packet) ((PVMPACKET_DESCRIPTOR)__packet)->Type
+#define VMPACKET_TRANSFER_MODE(__packet) \
+ (((PVMPACKET_DESCRIPTOR)__packet)->Type)
typedef enum {
- VmbusServerEndpoint = 0,
- VmbusClientEndpoint,
- VmbusEndpointMaximum
+ VmbusServerEndpoint = 0,
+ VmbusClientEndpoint,
+ VmbusEndpointMaximum
} ENDPOINT_TYPE, *PENDPOINT_TYPE;
typedef enum {
- VmbusPacketTypeInvalid = 0x0,
- VmbusPacketTypeSynch = 0x1,
- VmbusPacketTypeAddTransferPageSet = 0x2,
- VmbusPacketTypeRemoveTransferPageSet = 0x3,
- VmbusPacketTypeEstablishGpadl = 0x4,
- VmbusPacketTypeTearDownGpadl = 0x5,
- VmbusPacketTypeDataInBand = 0x6,
- VmbusPacketTypeDataUsingTransferPages = 0x7,
- VmbusPacketTypeDataUsingGpadl = 0x8,
- VmbusPacketTypeDataUsingGpaDirect = 0x9,
- VmbusPacketTypeCancelRequest = 0xa,
- VmbusPacketTypeCompletion = 0xb,
- VmbusPacketTypeDataUsingAdditionalPackets = 0xc,
- VmbusPacketTypeAdditionalData = 0xd
+ VmbusPacketTypeInvalid = 0x0,
+ VmbusPacketTypeSynch = 0x1,
+ VmbusPacketTypeAddTransferPageSet = 0x2,
+ VmbusPacketTypeRemoveTransferPageSet = 0x3,
+ VmbusPacketTypeEstablishGpadl = 0x4,
+ VmbusPacketTypeTearDownGpadl = 0x5,
+ VmbusPacketTypeDataInBand = 0x6,
+ VmbusPacketTypeDataUsingTransferPages = 0x7,
+ VmbusPacketTypeDataUsingGpadl = 0x8,
+ VmbusPacketTypeDataUsingGpaDirect = 0x9,
+ VmbusPacketTypeCancelRequest = 0xa,
+ VmbusPacketTypeCompletion = 0xb,
+ VmbusPacketTypeDataUsingAdditionalPackets = 0xc,
+ VmbusPacketTypeAdditionalData = 0xd
} VMBUS_PACKET_TYPE, *PVMBUS_PACKET_TYPE;
-#define VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED 1
+#define VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED 1
+
+#endif
git://bbs.cooldavid.org / net-next-2.6.git / commitdiff