Staging: hv: add the Hyper-V virtual network driver
[linux-2.6-block.git] / drivers / staging / hv / NetVsc.h
CommitLineData
fceaf24a
HJ
1/*
2 *
3 * Copyright (c) 2009, Microsoft Corporation.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
16 * Place - Suite 330, Boston, MA 02111-1307 USA.
17 *
18 * Authors:
19 * Hank Janssen <hjanssen@microsoft.com>
20 *
21 */
22
23
24#ifndef _NETVSC_H_
25#define _NETVSC_H_
26
27#include "VmbusPacketFormat.h"
28#include "nvspprotocol.h"
29
30#include "List.h"
31
32#include "NetVscApi.h"
33//
34// #defines
35//
36//#define NVSC_MIN_PROTOCOL_VERSION 1
37//#define NVSC_MAX_PROTOCOL_VERSION 1
38
39#define NETVSC_SEND_BUFFER_SIZE 64*1024 // 64K
40#define NETVSC_SEND_BUFFER_ID 0xface
41
42
43#define NETVSC_RECEIVE_BUFFER_SIZE 1024*1024 // 1MB
44
45#define NETVSC_RECEIVE_BUFFER_ID 0xcafe
46
47#define NETVSC_RECEIVE_SG_COUNT 1
48
49// Preallocated receive packets
50#define NETVSC_RECEIVE_PACKETLIST_COUNT 256
51
52//
53// Data types
54//
55
56// Per netvsc channel-specific
57typedef struct _NETVSC_DEVICE {
58 DEVICE_OBJECT *Device;
59
60 int RefCount;
61
62 int NumOutstandingSends;
63 // List of free preallocated NETVSC_PACKET to represent receive packet
64 LIST_ENTRY ReceivePacketList;
65 HANDLE ReceivePacketListLock;
66
67 // Send buffer allocated by us but manages by NetVSP
68 PVOID SendBuffer;
69 UINT32 SendBufferSize;
70 UINT32 SendBufferGpadlHandle;
71 UINT32 SendSectionSize;
72
73 // Receive buffer allocated by us but manages by NetVSP
74 PVOID ReceiveBuffer;
75 UINT32 ReceiveBufferSize;
76 UINT32 ReceiveBufferGpadlHandle;
77 UINT32 ReceiveSectionCount;
78 PNVSP_1_RECEIVE_BUFFER_SECTION ReceiveSections;
79
80 // Used for NetVSP initialization protocol
81 HANDLE ChannelInitEvent;
82 NVSP_MESSAGE ChannelInitPacket;
83
84 NVSP_MESSAGE RevokePacket;
85 //UCHAR HwMacAddr[HW_MACADDR_LEN];
86
87 // Holds rndis device info
88 void *Extension;
89} NETVSC_DEVICE;
90
91#endif // _NETVSC_H_