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Diffstat (limited to 'drivers/staging/hv/NetVsc.h')
-rw-r--r-- | drivers/staging/hv/NetVsc.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/drivers/staging/hv/NetVsc.h b/drivers/staging/hv/NetVsc.h new file mode 100644 index 000000000000..770a7b46c2c9 --- /dev/null +++ b/drivers/staging/hv/NetVsc.h @@ -0,0 +1,90 @@ +/* + * + * 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" + +/* #defines */ + +/* #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 + + +/* Data types */ + + +/* 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_ */ |