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![Greg Kroah-Hartman](/assets/img/avatar_default.png)
Move it out of the include subdirectory. No code changes here, just file movements. Cc: Hank Janssen <hjanssen@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
89 lines
2.7 KiB
C
89 lines
2.7 KiB
C
/*
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*
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* Copyright (c) 2009, Microsoft Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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* Place - Suite 330, Boston, MA 02111-1307 USA.
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*
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* Authors:
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* Haiyang Zhang <haiyangz@microsoft.com>
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* Hank Janssen <hjanssen@microsoft.com>
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*
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*/
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#ifndef __VMBUSCHANNELINTERFACE_H
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#define __VMBUSCHANNELINTERFACE_H
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/*
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* A revision number of vmbus that is used for ensuring both ends on a
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* partition are using compatible versions.
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*/
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#define VMBUS_REVISION_NUMBER 13
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/* Make maximum size of pipe payload of 16K */
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#define MAX_PIPE_DATA_PAYLOAD (sizeof(u8) * 16384)
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/* Define PipeMode values. */
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#define VMBUS_PIPE_TYPE_BYTE 0x00000000
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#define VMBUS_PIPE_TYPE_MESSAGE 0x00000004
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/* The size of the user defined data buffer for non-pipe offers. */
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#define MAX_USER_DEFINED_BYTES 120
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/* The size of the user defined data buffer for pipe offers. */
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#define MAX_PIPE_USER_DEFINED_BYTES 116
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/*
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* At the center of the Channel Management library is the Channel Offer. This
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* struct contains the fundamental information about an offer.
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*/
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struct vmbus_channel_offer {
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struct hv_guid InterfaceType;
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struct hv_guid InterfaceInstance;
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u64 InterruptLatencyIn100nsUnits;
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u32 InterfaceRevision;
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u32 ServerContextAreaSize; /* in bytes */
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u16 ChannelFlags;
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u16 MmioMegabytes; /* in bytes * 1024 * 1024 */
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union {
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/* Non-pipes: The user has MAX_USER_DEFINED_BYTES bytes. */
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struct {
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unsigned char UserDefined[MAX_USER_DEFINED_BYTES];
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} Standard;
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/*
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* Pipes:
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* The following sructure is an integrated pipe protocol, which
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* is implemented on top of standard user-defined data. Pipe
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* clients have MAX_PIPE_USER_DEFINED_BYTES left for their own
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* use.
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*/
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struct {
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u32 PipeMode;
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unsigned char UserDefined[MAX_PIPE_USER_DEFINED_BYTES];
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} Pipe;
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} u;
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u32 Padding;
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} __attribute__((packed));
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/* Server Flags */
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#define VMBUS_CHANNEL_ENUMERATE_DEVICE_INTERFACE 1
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#define VMBUS_CHANNEL_SERVER_SUPPORTS_TRANSFER_PAGES 2
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#define VMBUS_CHANNEL_SERVER_SUPPORTS_GPADLS 4
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#define VMBUS_CHANNEL_NAMED_PIPE_MODE 0x10
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#define VMBUS_CHANNEL_LOOPBACK_OFFER 0x100
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#define VMBUS_CHANNEL_PARENT_OFFER 0x200
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#define VMBUS_CHANNEL_REQUEST_MONITORED_NOTIFICATION 0x400
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#endif
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