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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:
* Hank Janssen <hjanssen@microsoft.com>
*
*/
#ifndef _NETVSC_H_
#define _NETVSC_H_
#include "include/VmbusPacketFormat.h"
#include "include/nvspprotocol.h"
#include "include/List.h"
#include "include/NetVscApi.h"
/* #define NVSC_MIN_PROTOCOL_VERSION 1 */
/* #define NVSC_MAX_PROTOCOL_VERSION 1 */
#define NETVSC_SEND_BUFFER_SIZE (64*1024) /* 64K */
#define NETVSC_SEND_BUFFER_ID 0xface
#define NETVSC_RECEIVE_BUFFER_SIZE (1024*1024) /* 1MB */
#define NETVSC_RECEIVE_BUFFER_ID 0xcafe
#define NETVSC_RECEIVE_SG_COUNT 1
/* Preallocated receive packets */
#define NETVSC_RECEIVE_PACKETLIST_COUNT 256
/* Per netvsc channel-specific */
struct NETVSC_DEVICE {
struct hv_device *Device;
atomic_t RefCount;
atomic_t NumOutstandingSends;
/*
* List of free preallocated hv_netvsc_packet to represent receive
* packet
*/
LIST_ENTRY ReceivePacketList;
spinlock_t receive_packet_list_lock;
/* Send buffer allocated by us but manages by NetVSP */
void *SendBuffer;
u32 SendBufferSize;
u32 SendBufferGpadlHandle;
u32 SendSectionSize;
/* Receive buffer allocated by us but manages by NetVSP */
void *ReceiveBuffer;
u32 ReceiveBufferSize;
u32 ReceiveBufferGpadlHandle;
u32 ReceiveSectionCount;
PNVSP_1_RECEIVE_BUFFER_SECTION ReceiveSections;
/* Used for NetVSP initialization protocol */
struct osd_waitevent *ChannelInitEvent;
NVSP_MESSAGE ChannelInitPacket;
NVSP_MESSAGE RevokePacket;
/* unsigned char HwMacAddr[HW_MACADDR_LEN]; */
/* Holds rndis device info */
void *Extension;
};
#endif /* _NETVSC_H_ */
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