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/*
*
* Copyright (c) 2009, Microsoft Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place - Suite 330, Boston, MA 02111-1307 USA.
*
* Authors:
* Haiyang Zhang <haiyangz@microsoft.com>
* Hank Janssen <hjanssen@microsoft.com>
*
*/
#pragma once
/* allow nameless unions */
/* #pragma warning(disable : 4201) */
/* A revision number of vmbus that is used for ensuring both ends on a */
/* partition are using compatible versions. */
#define VMBUS_REVISION_NUMBER 13
/* Make maximum size of pipe payload of 16K */
#define MAX_PIPE_DATA_PAYLOAD (sizeof(BYTE) * 16384)
/* Define PipeMode values. */
#define VMBUS_PIPE_TYPE_BYTE 0x00000000
#define VMBUS_PIPE_TYPE_MESSAGE 0x00000004
/* The size of the user defined data buffer for non-pipe offers. */
#define MAX_USER_DEFINED_BYTES 120
/* The size of the user defined data buffer for pipe offers. */
#define MAX_PIPE_USER_DEFINED_BYTES 116
/* At the center of the Channel Management library is */
/* the Channel Offer. This struct contains the */
/* fundamental information about an offer. */
#pragma pack(push,1)
typedef struct
{
GUID InterfaceType;
GUID InterfaceInstance;
u64 InterruptLatencyIn100nsUnits;
u32 InterfaceRevision;
u32 ServerContextAreaSize; /* in bytes */
u16 ChannelFlags;
u16 MmioMegabytes; /* in bytes * 1024 * 1024 */
union
{
/* Non-pipes: The user has MAX_USER_DEFINED_BYTES bytes. */
struct
{
unsigned char UserDefined[MAX_USER_DEFINED_BYTES];
} Standard;
/* Pipes: The following sructure is an integrated pipe protocol, which */
/* is implemented on top of standard user-defined data. Pipe clients */
/* have MAX_PIPE_USER_DEFINED_BYTES left for their own use. */
struct
{
u32 PipeMode;
unsigned char UserDefined[MAX_PIPE_USER_DEFINED_BYTES];
} Pipe;
} u;
u32 Padding;
} VMBUS_CHANNEL_OFFER, *PVMBUS_CHANNEL_OFFER;
#pragma pack(pop)
typedef u32 GPADL_HANDLE;
/* Server Flags */
#define VMBUS_CHANNEL_ENUMERATE_DEVICE_INTERFACE 1
#define VMBUS_CHANNEL_SERVER_SUPPORTS_TRANSFER_PAGES 2
#define VMBUS_CHANNEL_SERVER_SUPPORTS_GPADLS 4
#define VMBUS_CHANNEL_NAMED_PIPE_MODE 0x10
#define VMBUS_CHANNEL_LOOPBACK_OFFER 0x100
#define VMBUS_CHANNEL_PARENT_OFFER 0x200
#define VMBUS_CHANNEL_REQUEST_MONITORED_NOTIFICATION 0x400
/* TEMPTEMP -- move this next define to devioctl.h some day */
#ifndef FILE_DEVICE_VMBUS
#define FILE_DEVICE_VMBUS 0x0000003E
#endif
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