[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"

/* #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;
	struct nvsp_1_receive_buffer_section *ReceiveSections;

	/* Used for NetVSP initialization protocol */
	struct osd_waitevent *ChannelInitEvent;
	struct nvsp_message ChannelInitPacket;

	struct 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
b010e5a7 GKH	34	/* #define NVSC_MIN_PROTOCOL_VERSION 1 */
b010e5a7 GKH	35	/* #define NVSC_MAX_PROTOCOL_VERSION 1 */
454f18a9	36
b010e5a7 GKH	37	#define NETVSC_SEND_BUFFER_SIZE (641024) / 64K */
b010e5a7 GKH	38	#define NETVSC_SEND_BUFFER_ID 0xface
454f18a9	39
fceaf24a	40
b010e5a7	41	#define NETVSC_RECEIVE_BUFFER_SIZE (10241024) / 1MB */
fceaf24a	42
b010e5a7	43	#define NETVSC_RECEIVE_BUFFER_ID 0xcafe
fceaf24a	44
b010e5a7	45	#define NETVSC_RECEIVE_SG_COUNT 1
fceaf24a	46
454f18a9	47	/* Preallocated receive packets */
fceaf24a HJ	48	#define NETVSC_RECEIVE_PACKETLIST_COUNT 256
fceaf24a HJ	49
fceaf24a	50
454f18a9	51	/* Per netvsc channel-specific */
d1af1db7	52	struct NETVSC_DEVICE {
3d3b5518	53	struct hv_device *Device;
fceaf24a	54
f4888417 BP	55	atomic_t RefCount;
f4888417 BP	56	atomic_t NumOutstandingSends;
b010e5a7 GKH	57	/*
	58	* List of free preallocated hv_netvsc_packet to represent receive
	59	* packet
	60	*/
	61	LIST_ENTRY ReceivePacketList;
6436873a	62	spinlock_t receive_packet_list_lock;
fceaf24a	63
454f18a9	64	/* Send buffer allocated by us but manages by NetVSP */
b010e5a7 GKH	65	void *SendBuffer;
	66	u32 SendBufferSize;
	67	u32 SendBufferGpadlHandle;
	68	u32 SendSectionSize;
fceaf24a	69
454f18a9	70	/* Receive buffer allocated by us but manages by NetVSP */
b010e5a7 GKH	71	void *ReceiveBuffer;
	72	u32 ReceiveBufferSize;
	73	u32 ReceiveBufferGpadlHandle;
	74	u32 ReceiveSectionCount;
223c1aa6	75	struct nvsp_1_receive_buffer_section *ReceiveSections;
fceaf24a	76
454f18a9	77	/* Used for NetVSP initialization protocol */
aedb444a	78	struct osd_waitevent *ChannelInitEvent;
223c1aa6	79	struct nvsp_message ChannelInitPacket;
fceaf24a	80
223c1aa6	81	struct nvsp_message RevokePacket;
b010e5a7	82	/* unsigned char HwMacAddr[HW_MACADDR_LEN]; */
fceaf24a	83
454f18a9	84	/* Holds rndis device info */
b010e5a7	85	void *Extension;
d1af1db7	86	};
fceaf24a	87
454f18a9	88	#endif /* _NETVSC_H_ */