[7682] | 1 | /** @file
|
---|
| 2 | * DevPCNet - Private guest interface for the PCNet device.
|
---|
| 3 | */
|
---|
| 4 |
|
---|
| 5 | /*
|
---|
| 6 | * Copyright (C) 2008 innotek GmbH
|
---|
| 7 | *
|
---|
| 8 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
---|
| 9 | * available from http://www.virtualbox.org. This file is free software;
|
---|
| 10 | * you can redistribute it and/or modify it under the terms of the GNU
|
---|
| 11 | * General Public License (GPL) as published by the Free Software
|
---|
| 12 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
---|
| 13 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
---|
| 14 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
---|
| 15 | *
|
---|
| 16 | * The contents of this file may alternatively be used under the terms
|
---|
| 17 | * of the Common Development and Distribution License Version 1.0
|
---|
| 18 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
---|
| 19 | * VirtualBox OSE distribution, in which case the provisions of the
|
---|
| 20 | * CDDL are applicable instead of those of the GPL.
|
---|
| 21 | *
|
---|
| 22 | * You may elect to license modified versions of this file under the
|
---|
| 23 | * terms and conditions of either the GPL or the CDDL or both.
|
---|
| 24 | */
|
---|
| 25 |
|
---|
| 26 | #ifndef ___VBox_DevPCNet_h
|
---|
| 27 | #define ___VBox_DevPCNet_h
|
---|
| 28 |
|
---|
| 29 | #include <iprt/types.h>
|
---|
| 30 |
|
---|
| 31 | /** @defgroup grp_devpcnet AMD PCnet-PCI II / PCnet-FAST III (Am79C970A / Am79C973) Ethernet Controller Emulation.
|
---|
| 32 | * {
|
---|
| 33 | */
|
---|
| 34 |
|
---|
| 35 | #define PCNET_GUEST_INTERFACE_VERSION (1)
|
---|
[7688] | 36 | #define PCNET_GUEST_SHARED_MEMORY_SIZE _512K
|
---|
[7682] | 37 | #define PCNET_GUEST_TX_DESCRIPTOR_SIZE 16
|
---|
| 38 | #define PCNET_GUEST_RX_DESCRIPTOR_SIZE 16
|
---|
| 39 | #define PCNET_GUEST_MAX_TX_DESCRIPTORS 128
|
---|
| 40 | #define PCNET_GUEST_MAX_RX_DESCRIPTORS 256
|
---|
| 41 | #define PCNET_GUEST_NIC_BUFFER_SIZE 1536
|
---|
| 42 |
|
---|
| 43 | /* 256*16 + 128*16 + 256*1536 + 128*1536 = 582KB */
|
---|
| 44 |
|
---|
| 45 | /**
|
---|
| 46 | * The header of the PCNet shared memory (VBox specific).
|
---|
| 47 | */
|
---|
| 48 | #pragma pack(1) /* paranoia */
|
---|
| 49 | typedef struct
|
---|
| 50 | {
|
---|
[7755] | 51 | /** The size of the shared memory that's being used.
|
---|
| 52 | * (This is <= PCNET_GUEST_SHARED_MEMORY_SIZE.) */
|
---|
| 53 | uint32_t cbUsed;
|
---|
[7682] | 54 | /** Version (PCNET_GUEST_INTERFACE_VERSION). */
|
---|
| 55 | uint32_t u32Version;
|
---|
| 56 | /** Flags (See PCNET_GUEST_FLAGS_*). */
|
---|
| 57 | uint32_t fFlags;
|
---|
[7755] | 58 | /** Align the following members to 64 bit. */
|
---|
[7688] | 59 | uint32_t u32Alignment;
|
---|
[7682] | 60 |
|
---|
| 61 | union
|
---|
| 62 | {
|
---|
| 63 | struct
|
---|
| 64 | {
|
---|
| 65 | /** The size (in bytes) of the transmit descriptor array. */
|
---|
| 66 | uint32_t cbTxDescriptors;
|
---|
| 67 | /** The size (in bytes) of the receive descriptor array. */
|
---|
| 68 | uint32_t cbRxDescriptors;
|
---|
[7688] | 69 | /** Offset of the transmit descriptors relative to this header. */
|
---|
| 70 | uint32_t offTxDescriptors;
|
---|
[7682] | 71 | /** Offset of the receive descriptors relative to this header. */
|
---|
[7688] | 72 | uint32_t offRxDescriptors;
|
---|
[7682] | 73 | /** Offset of the transmit buffers relative to this header. */
|
---|
[7688] | 74 | uint32_t offTxBuffers;
|
---|
[7682] | 75 | /** Offset of the receive buffers relative to this header. */
|
---|
[7688] | 76 | uint32_t offRxBuffers;
|
---|
[7682] | 77 | } V1;
|
---|
| 78 | } V;
|
---|
| 79 |
|
---|
| 80 | } PCNETGUESTSHAREDMEMORY;
|
---|
| 81 | #pragma pack()
|
---|
| 82 | /** Pointer to the PCNet shared memory header. */
|
---|
| 83 | typedef PCNETGUESTSHAREDMEMORY *PPCNETGUESTSHAREDMEMORY;
|
---|
| 84 | /** Const pointer to the PCNet shared memory header. */
|
---|
| 85 | typedef const PCNETGUESTSHAREDMEMORY *PCPCNETGUESTSHAREDMEMORY;
|
---|
| 86 |
|
---|
| 87 | /** @name fFlags definitions
|
---|
| 88 | * @{
|
---|
| 89 | */
|
---|
| 90 | /** Host admits existence private PCNet interface. */
|
---|
| 91 | #define PCNET_GUEST_FLAGS_ADMIT_HOST RT_BIT(0)
|
---|
| 92 | /** Guest admits using the private PCNet interface. */
|
---|
| 93 | #define PCNET_GUEST_FLAGS_ADMIT_GUEST RT_BIT(1)
|
---|
| 94 | /** @} */
|
---|
| 95 |
|
---|
| 96 | /** @} */
|
---|
| 97 |
|
---|
| 98 | #endif
|
---|
| 99 |
|
---|