[linux-2.6-block.git] / drivers / staging / hv / NetVsc.h

/*
 *
 * 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;

	int								RefCount;

	int								NumOutstandingSends;
	/* List of free preallocated 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 */
	HANDLE							ChannelInitEvent;
	NVSP_MESSAGE					ChannelInitPacket;

	NVSP_MESSAGE					RevokePacket;
	/* unsigned char							HwMacAddr[HW_MACADDR_LEN]; */

	/* Holds rndis device info */
	void							*Extension;
};

#endif /* _NETVSC_H_ */
Commit	Line	Data
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
c86f3e2a GKH	27	#include "include/VmbusPacketFormat.h"
c86f3e2a GKH	28	#include "include/nvspprotocol.h"
fceaf24a	29
c86f3e2a	30	#include "include/List.h"
fceaf24a	31
c86f3e2a	32	#include "include/NetVscApi.h"
fceaf24a	33
454f18a9 BP	34	/* #defines */
	35
	36	/* #define NVSC_MIN_PROTOCOL_VERSION 1 */
	37	/* #define NVSC_MAX_PROTOCOL_VERSION 1 */
	38
	39	#define NETVSC_SEND_BUFFER_SIZE 641024 / 64K */
fceaf24a HJ	40	#define NETVSC_SEND_BUFFER_ID 0xface
	41
	42
454f18a9	43	#define NETVSC_RECEIVE_BUFFER_SIZE 10241024 / 1MB */
fceaf24a HJ	44
	45	#define NETVSC_RECEIVE_BUFFER_ID 0xcafe
	46
	47	#define NETVSC_RECEIVE_SG_COUNT 1
	48
454f18a9	49	/* Preallocated receive packets */
fceaf24a HJ	50	#define NETVSC_RECEIVE_PACKETLIST_COUNT 256
fceaf24a HJ	51
fceaf24a	52
454f18a9 BP	53	/* Data types */
	54
	55
	56	/* Per netvsc channel-specific */
d1af1db7	57	struct NETVSC_DEVICE {
3d3b5518	58	struct hv_device *Device;
fceaf24a HJ	59
	60	int RefCount;
	61
	62	int NumOutstandingSends;
454f18a9	63	/* List of free preallocated NETVSC_PACKET to represent receive packet */
fceaf24a	64	LIST_ENTRY ReceivePacketList;
6436873a	65	spinlock_t receive_packet_list_lock;
fceaf24a	66
454f18a9	67	/* Send buffer allocated by us but manages by NetVSP */
8282c400	68	void * SendBuffer;
4d643114 GKH	69	u32 SendBufferSize;
	70	u32 SendBufferGpadlHandle;
	71	u32 SendSectionSize;
fceaf24a	72
454f18a9	73	/* Receive buffer allocated by us but manages by NetVSP */
8282c400	74	void * ReceiveBuffer;
4d643114 GKH	75	u32 ReceiveBufferSize;
	76	u32 ReceiveBufferGpadlHandle;
	77	u32 ReceiveSectionCount;
fceaf24a HJ	78	PNVSP_1_RECEIVE_BUFFER_SECTION ReceiveSections;
fceaf24a HJ	79
454f18a9	80	/* Used for NetVSP initialization protocol */
fceaf24a HJ	81	HANDLE ChannelInitEvent;
	82	NVSP_MESSAGE ChannelInitPacket;
	83
	84	NVSP_MESSAGE RevokePacket;
454f18a9	85	/* unsigned char HwMacAddr[HW_MACADDR_LEN]; */
fceaf24a	86
454f18a9	87	/* Holds rndis device info */
fceaf24a	88	void *Extension;
d1af1db7	89	};
fceaf24a	90
454f18a9	91	#endif /* _NETVSC_H_ */