Staging: hv: add the Hyper-V virtual network driver

This is the virtual network driver when running Linux on top of Hyper-V.

Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 91 insertions, 0 deletions

diff --git a/drivers/staging/hv/NetVsc.h b/drivers/staging/hv/NetVsc.h
new file mode 100644
index 000000000000..37d07449849a
--- /dev/null
+++ b/drivers/staging/hv/NetVsc.h
@@ -0,0 +1,91 @@
+/*
+ *
+ * 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 "VmbusPacketFormat.h"
+#include "nvspprotocol.h"
+
+#include "List.h"
+
+#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
+typedef struct _NETVSC_DEVICE {
+	DEVICE_OBJECT					*Device;
+
+	int								RefCount;
+
+	int								NumOutstandingSends;
+	// List of free preallocated NETVSC_PACKET to represent receive packet
+	LIST_ENTRY						ReceivePacketList;
+	HANDLE							ReceivePacketListLock;
+
+	// Send buffer allocated by us but manages by NetVSP
+	PVOID							SendBuffer;
+	UINT32							SendBufferSize;
+	UINT32							SendBufferGpadlHandle;
+	UINT32							SendSectionSize;
+
+	// Receive buffer allocated by us but manages by NetVSP
+	PVOID							ReceiveBuffer;
+	UINT32							ReceiveBufferSize;
+	UINT32							ReceiveBufferGpadlHandle;
+	UINT32							ReceiveSectionCount;
+	PNVSP_1_RECEIVE_BUFFER_SECTION	ReceiveSections;
+
+	// Used for NetVSP initialization protocol
+	HANDLE							ChannelInitEvent;
+	NVSP_MESSAGE					ChannelInitPacket;
+
+	NVSP_MESSAGE					RevokePacket;
+	//UCHAR							HwMacAddr[HW_MACADDR_LEN];
+
+	// Holds rndis device info
+	void							*Extension;
+} NETVSC_DEVICE;
+
+#endif // _NETVSC_H_