1 | /* $Id: DrvDedicatedNic.cpp 93115 2022-01-01 11:31:46Z vboxsync $ */
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2 | /** @file
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3 | * DrvDedicatedNic - Experimental network driver for using a dedicated (V)NIC.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2010-2022 Oracle Corporation
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8 | *
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9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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10 | * available from http://www.virtualbox.org. This file is free software;
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11 | * you can redistribute it and/or modify it under the terms of the GNU
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12 | * General Public License (GPL) as published by the Free Software
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13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | */
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17 |
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18 |
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19 | /*********************************************************************************************************************************
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20 | * Header Files *
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21 | *********************************************************************************************************************************/
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22 | #define LOG_GROUP LOG_GROUP_DEFAULT
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23 | #include <VBox/log.h>
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24 | #include <VBox/vmm/pdmcritsect.h>
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25 | #include <VBox/vmm/pdmdrv.h>
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26 | #include <VBox/vmm/pdmnetifs.h>
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27 | #include <VBox/vmm/pdmnetinline.h>
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28 | #include <VBox/intnet.h>
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29 | #include <VBox/intnetinline.h>
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30 |
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31 | #include <iprt/asm.h>
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32 | #include <iprt/assert.h>
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33 | #include <iprt/mem.h>
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34 | #include <iprt/path.h>
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35 | #include <iprt/string.h>
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36 | #include <iprt/thread.h>
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37 | #include <iprt/uuid.h>
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38 |
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39 | #include "VBoxDD.h"
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40 |
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41 |
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42 | /*********************************************************************************************************************************
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43 | * Structures and Typedefs *
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44 | *********************************************************************************************************************************/
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45 | /**
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46 | * Instance data for the dedicated (V)NIC driver.
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47 | *
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48 | * @implements PDMINETWORKUP
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49 | */
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50 | typedef struct DRVDEDICATEDNIC
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51 | {
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52 | /** The network interface. */
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53 | PDMINETWORKUP INetworkUpR3;
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54 | /** The network interface. */
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55 | R3PTRTYPE(PPDMINETWORKDOWN) pIAboveNet;
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56 | /** The network config interface.
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57 | * Can (in theory at least) be NULL. */
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58 | R3PTRTYPE(PPDMINETWORKCONFIG) pIAboveConfigR3;
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59 | /** Pointer to the driver instance. */
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60 | PPDMDRVINSR3 pDrvInsR3;
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61 | /** Ring-3 base interface for the ring-0 context. */
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62 | PDMIBASER0 IBaseR0;
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63 | /** Ring-3 base interface for the raw-mode context. */
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64 | PDMIBASERC IBaseRC;
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65 | RTR3PTR R3PtrAlignment;
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66 |
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67 |
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68 | /** The network interface for the ring-0 context. */
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69 | PDMINETWORKUPR0 INetworkUpR0;
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70 | /** Pointer to the driver instance. */
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71 | PPDMDRVINSR0 pDrvInsR0;
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72 | RTR0PTR R0PtrAlignment;
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73 |
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74 | /** The interface we're talking to. */
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75 | R0PTRTYPE(PINTNETTRUNKIFPORT) pIfPortR0;
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76 | /** Set if the link is up, clear if its down. */
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77 | bool fLinkDown;
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78 | /** Set if the current transmit operation is done the XMIT thread. If clear,
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79 | * we assume its an EMT. */
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80 | bool fXmitOnXmitThread;
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81 | /** The name of the interface that we're connected to. */
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82 | char szIfName[128 + 8 - 2];
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83 |
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84 | /** Critical section serializing transmission. */
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85 | PDMCRITSECT XmitLock;
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86 | /** The transmit scatter gather buffer (ring-3 -> ring-0). */
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87 | PDMSCATTERGATHER XmitSg;
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88 | /** The transmit GSO context (when applicable). */
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89 | PDMNETWORKGSO XmitGso;
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90 | /** The transmit buffer (ring-3 -> ring-0). */
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91 | uint8_t abXmitBuf[_64K];
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92 |
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93 | /** The receive scatter gather buffer. */
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94 | PDMSCATTERGATHER RecvSg;
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95 | /** The receive buffer (ring-0 -> ring-3). */
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96 | uint8_t abRecvBuf[_64K];
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97 |
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98 | } DRVDEDICATEDNIC;
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99 | /** Pointer to the instance data for the dedicated (V)NIC driver. */
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100 | typedef DRVDEDICATEDNIC *PDRVDEDICATEDNIC;
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101 |
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102 | /**
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103 | * Ring-0 operations.
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104 | */
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105 | typedef enum DRVDEDICATEDNICR0OP
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106 | {
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107 | /** Invalid zero value.. */
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108 | DRVDEDICATEDNICR0OP_INVALID = 0,
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109 | /** Initialize the connection to the NIC. */
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110 | DRVDEDICATEDNICR0OP_INIT,
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111 | /** Terminate the connection to the NIC. */
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112 | DRVDEDICATEDNICR0OP_TERM,
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113 | /** Suspend the operation. */
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114 | DRVDEDICATEDNICR0OP_SUSPEND,
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115 | /** Resume the operation. */
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116 | DRVDEDICATEDNICR0OP_RESUME,
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117 | /** Wait for and do receive work.
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118 | * We do this in ring-0 instead of ring-3 to save 1-2 buffer copies and
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119 | * unnecessary context switching. */
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120 | DRVDEDICATEDNICR0OP_RECV,
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121 | /** Wait for and do transmit work.
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122 | * We do this in ring-0 instead of ring-3 to save 1-2 buffer copies and
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123 | * unnecessary context switching. */
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124 | DRVDEDICATEDNICR0OP_SEND,
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125 | /** Changes the promiscuousness of the interface (guest point of view). */
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126 | DRVDEDICATEDNICR0OP_PROMISC,
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127 | /** End of the valid operations. */
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128 | DRVDEDICATEDNICR0OP_END,
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129 | /** The usual 32-bit hack. */
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130 | DRVDEDICATEDNICR0OP_32BIT_HACK = 0x7fffffff
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131 | } DRVDEDICATEDNICR0OP;
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132 |
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133 |
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134 |
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135 | #ifdef IN_RING0
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136 |
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137 | /**
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138 | * @interface_method_impl{FNPDMDRVREQHANDLERR0}
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139 | */
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140 | PDMBOTHCBDECL(int) drvR0DedicatedNicReqHandler(PPDMDRVINS pDrvIns, uint32_t uOperation, uint64_t u64Arg)
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141 | {
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142 | RT_NOREF_PV(pDrvIns); RT_NOREF_PV(u64Arg);
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143 | switch ((DRVDEDICATEDNICR0OP)uOperation)
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144 | {
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145 | case DRVDEDICATEDNICR0OP_INIT:
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146 | return VERR_NOT_IMPLEMENTED;//drvR0DedicatedNicReqInit(pDrvIns, u64Arg);
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147 |
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148 | case DRVDEDICATEDNICR0OP_TERM:
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149 | return VERR_NOT_IMPLEMENTED;//drvR0DedicatedNicReqTerm(pDrvIns);
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150 |
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151 | case DRVDEDICATEDNICR0OP_SUSPEND:
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152 | return VERR_NOT_IMPLEMENTED;//drvR0DedicatedNicReqSuspend(pDrvIns);
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153 |
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154 | case DRVDEDICATEDNICR0OP_RESUME:
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155 | return VERR_NOT_IMPLEMENTED;//drvR0DedicatedNicReqResume(pDrvIns);
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156 |
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157 | case DRVDEDICATEDNICR0OP_RECV:
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158 | return VERR_NOT_IMPLEMENTED;//drvR0DedicatedNicReqRecv(pDrvIns);
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159 |
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160 | case DRVDEDICATEDNICR0OP_SEND:
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161 | return VERR_NOT_IMPLEMENTED;//drvR0DedicatedNicReqSend(pDrvIns);
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162 |
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163 | case DRVDEDICATEDNICR0OP_PROMISC:
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164 | return VERR_NOT_IMPLEMENTED;//drvR0DedicatedNicReqPromisc(pDrvIns, !!u64Arg);
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165 |
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166 | case DRVDEDICATEDNICR0OP_END:
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167 | default:
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168 | return VERR_INVALID_FUNCTION;
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169 | }
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170 | }
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171 |
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172 | #endif /* IN_RING0 */
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173 |
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174 |
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175 |
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176 | #if 0 /* currently unused */
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177 |
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178 | /* -=-=-=-=- PDMINETWORKUP -=-=-=-=- */
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179 |
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180 | /**
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181 | * @interface_method_impl{PDMINETWORKUP,pfnBeginXmit}
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182 | */
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183 | PDMBOTHCBDECL(int) drvDedicatedNicUp_BeginXmit(PPDMINETWORKUP pInterface, bool fOnWorkerThread)
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184 | {
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185 | PDRVDEDICATEDNIC pThis = RT_FROM_MEMBER(pInterface, DRVDEDICATEDNIC, CTX_SUFF(INetworkUp));
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186 | int rc = PDMCritSectTryEnter(&pThis->XmitLock);
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187 | if (RT_SUCCESS(rc))
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188 | ASMAtomicUoWriteBool(&pThis->fXmitOnXmitThread, fOnWorkerThread);
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189 | return rc;
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190 | }
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191 |
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192 |
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193 | /**
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194 | * @interface_method_impl{PDMINETWORKUP,pfnAllocBuf}
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195 | */
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196 | PDMBOTHCBDECL(int) drvDedicatedNicUp_AllocBuf(PPDMINETWORKUP pInterface, size_t cbMin,
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197 | PCPDMNETWORKGSO pGso, PPPDMSCATTERGATHER ppSgBuf)
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198 | {
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199 | PDRVDEDICATEDNIC pThis = RT_FROM_MEMBER(pInterface, DRVDEDICATEDNIC, CTX_SUFF(INetworkUp));
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200 | Assert(PDMCritSectIsOwner(&pThis->XmitLock));
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201 |
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202 | /*
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203 | * If the net is down, we can return immediately.
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204 | */
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205 | if (pThis->fLinkDown)
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206 | return VERR_NET_DOWN;
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207 |
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208 | #ifdef IN_RING0
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209 | /** @todo Ask the driver for a buffer, atomically if we're called on EMT. */
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210 | RT_NOREF_PV(cbMin); RT_NOREF_PV(pGso); RT_NOREF_PV(ppSgBuf);
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211 | return VERR_TRY_AGAIN;
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212 |
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213 | #else /* IN_RING3 */
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214 | /*
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215 | * Are we busy or is the request too big?
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216 | */
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217 | if (RT_UNLIKELY((pThis->XmitSg.fFlags & PDMSCATTERGATHER_FLAGS_MAGIC_MASK) == PDMSCATTERGATHER_FLAGS_MAGIC))
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218 | return VERR_TRY_AGAIN;
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219 | if (cbMin > sizeof(pThis->abXmitBuf))
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220 | return VERR_NO_MEMORY;
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221 |
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222 | /*
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223 | * Initialize the S/G buffer and return.
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224 | */
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225 | pThis->XmitSg.fFlags = PDMSCATTERGATHER_FLAGS_MAGIC | PDMSCATTERGATHER_FLAGS_OWNER_1;
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226 | pThis->XmitSg.cbUsed = 0;
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227 | pThis->XmitSg.cbAvailable = sizeof(pThis->abXmitBuf);
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228 | pThis->XmitSg.pvAllocator = NULL;
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229 | if (!pGso)
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230 | {
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231 | pThis->XmitSg.pvUser = NULL;
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232 | pThis->XmitGso.u8Type = PDMNETWORKGSOTYPE_INVALID;
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233 | }
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234 | else
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235 | {
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236 | pThis->XmitSg.pvUser = &pThis->XmitGso;
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237 | pThis->XmitGso = *pGso;
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238 | }
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239 | pThis->XmitSg.cSegs = 1;
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240 | pThis->XmitSg.aSegs[0].cbSeg = pThis->XmitSg.cbAvailable;
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241 | pThis->XmitSg.aSegs[0].pvSeg = &pThis->abXmitBuf[0];
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242 |
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243 | # if 0 /* poison */
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244 | memset(pThis->XmitSg.aSegs[0].pvSeg, 'F', pThis->XmitSg.aSegs[0].cbSeg);
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245 | # endif
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246 |
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247 | *ppSgBuf = &pThis->XmitSg;
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248 | return VINF_SUCCESS;
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249 | #endif /* IN_RING3 */
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250 | }
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251 |
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252 |
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253 | /**
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254 | * @interface_method_impl{PDMINETWORKUP,pfnFreeBuf}
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255 | */
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256 | PDMBOTHCBDECL(int) drvDedicatedNicUp_FreeBuf(PPDMINETWORKUP pInterface, PPDMSCATTERGATHER pSgBuf)
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257 | {
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258 | #ifdef VBOX_STRICT
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259 | PDRVDEDICATEDNIC pThis = RT_FROM_MEMBER(pInterface, DRVDEDICATEDNIC, CTX_SUFF(INetworkUp));
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260 | Assert(pSgBuf->fFlags == (PDMSCATTERGATHER_FLAGS_MAGIC | PDMSCATTERGATHER_FLAGS_OWNER_1));
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261 | Assert(pSgBuf->cbUsed <= pSgBuf->cbAvailable);
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262 | Assert(PDMCritSectIsOwner(&pThis->XmitLock));
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263 | #else
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264 | RT_NOREF1(pInterface);
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265 | #endif
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266 |
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267 | if (pSgBuf)
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268 | {
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269 | #ifdef IN_RING0
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270 | // ...
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271 | #else
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272 | Assert(pSgBuf == &pThis->XmitSg);
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273 | Assert((pSgBuf->fFlags & PDMSCATTERGATHER_FLAGS_MAGIC_MASK) == PDMSCATTERGATHER_FLAGS_MAGIC);
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274 | pSgBuf->fFlags = 0;
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275 | #endif
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276 | }
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277 |
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278 | return VINF_SUCCESS;
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279 | }
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280 |
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281 |
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282 | /**
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283 | * @interface_method_impl{PDMINETWORKUP,pfnSendBuf}
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284 | */
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285 | PDMBOTHCBDECL(int) drvDedicatedNicUp_SendBuf(PPDMINETWORKUP pInterface, PPDMSCATTERGATHER pSgBuf, bool fOnWorkerThread)
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286 | {
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287 | PDRVDEDICATEDNIC pThis = RT_FROM_MEMBER(pInterface, DRVDEDICATEDNIC, CTX_SUFF(INetworkUp));
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288 | STAM_PROFILE_START(&pThis->StatTransmit, a);
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289 |
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290 | AssertPtr(pSgBuf);
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291 | Assert(pSgBuf->fFlags == (PDMSCATTERGATHER_FLAGS_MAGIC | PDMSCATTERGATHER_FLAGS_OWNER_1));
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292 | Assert(pSgBuf->cbUsed <= pSgBuf->cbAvailable);
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293 | #ifdef IN_RING0
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294 | Assert(pSgBuf == &pThis->XmitSg);
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295 | #endif
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296 | Assert(PDMCritSectIsOwner(&pThis->XmitLock));
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297 |
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298 | #ifdef IN_RING0
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299 | /*
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300 | * Tell the driver to send the packet.
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301 | */
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302 | RT_NOREF_PV(pThis); RT_NOREF_PV(pSgBuf); RT_NOREF_PV(fOnWorkerThread);
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303 | return VERR_INTERNAL_ERROR_4;
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304 |
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305 | #else /* IN_RING3 */
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306 | NOREF(fOnWorkerThread);
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307 |
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308 | /*
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309 | * Call ring-0 to start the transfer.
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310 | */
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311 | int rc = PDMDrvHlpCallR0(pThis->pDrvInsR3, DRVDEDICATEDNICR0OP_SEND, pSgBuf->cbUsed);
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312 | if (RT_FAILURE(rc) && rc != VERR_NET_DOWN)
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313 | rc = VERR_NET_NO_BUFFER_SPACE;
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314 | pSgBuf->fFlags = 0;
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315 | return rc;
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316 | #endif /* IN_RING3 */
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317 | }
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318 |
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319 |
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320 | /**
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321 | * @interface_method_impl{PDMINETWORKUP,pfnEndXmit}
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322 | */
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323 | PDMBOTHCBDECL(void) drvDedicatedNicUp_EndXmit(PPDMINETWORKUP pInterface)
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324 | {
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325 | PDRVDEDICATEDNIC pThis = RT_FROM_MEMBER(pInterface, DRVDEDICATEDNIC, CTX_SUFF(INetworkUp));
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326 | ASMAtomicUoWriteBool(&pThis->fXmitOnXmitThread, false);
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327 | PDMCritSectLeave(&pThis->XmitLock);
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328 | }
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329 |
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330 |
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331 | /**
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332 | * @interface_method_impl{PDMINETWORKUP,pfnSetPromiscuousMode}
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333 | */
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334 | PDMBOTHCBDECL(void) drvDedicatedNicUp_SetPromiscuousMode(PPDMINETWORKUP pInterface, bool fPromiscuous)
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335 | {
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336 | PDRVDEDICATEDNIC pThis = RT_FROM_MEMBER(pInterface, DRVDEDICATEDNIC, CTX_SUFF(INetworkUp));
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337 | /** @todo enable/disable promiscuous mode (should be easy) */
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338 | NOREF(pThis); RT_NOREF_PV(fPromiscuous);
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339 | }
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340 |
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341 | #endif /* unused */
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342 | #ifdef IN_RING3
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343 | # if 0 /* currently unused */
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344 |
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345 | /**
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346 | * @interface_method_impl{PDMINETWORKUP,pfnNotifyLinkChanged}
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347 | */
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348 | static DECLCALLBACK(void) drvR3DedicatedNicUp_NotifyLinkChanged(PPDMINETWORKUP pInterface, PDMNETWORKLINKSTATE enmLinkState)
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349 | {
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350 | PDRVDEDICATEDNIC pThis = RT_FROM_MEMBER(pInterface, DRVDEDICATEDNIC, CTX_SUFF(INetworkUp));
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351 | bool fLinkDown;
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352 | switch (enmLinkState)
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353 | {
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354 | case PDMNETWORKLINKSTATE_DOWN:
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355 | case PDMNETWORKLINKSTATE_DOWN_RESUME:
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356 | fLinkDown = true;
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357 | break;
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358 | default:
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359 | AssertMsgFailed(("enmLinkState=%d\n", enmLinkState));
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360 | case PDMNETWORKLINKSTATE_UP:
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361 | fLinkDown = false;
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362 | break;
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363 | }
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364 | LogFlow(("drvR3DedicatedNicUp_NotifyLinkChanged: enmLinkState=%d %d->%d\n", enmLinkState, pThis->fLinkDown, fLinkDown));
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365 | ASMAtomicWriteBool(&pThis->fLinkDown, fLinkDown);
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366 | }
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367 |
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368 |
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369 | /* -=-=-=-=- PDMIBASER0 -=-=-=-=- */
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370 |
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371 | /**
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372 | * @interface_method_impl{PDMIBASER0,pfnQueryInterface}
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373 | */
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374 | static DECLCALLBACK(RTR0PTR) drvR3DedicatedNicIBaseR0_QueryInterface(PPDMIBASER0 pInterface, const char *pszIID)
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375 | {
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376 | PDRVDEDICATEDNIC pThis = RT_FROM_MEMBER(pInterface, DRVDEDICATEDNIC, IBaseR0);
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377 | PDMIBASER0_RETURN_INTERFACE(pThis->pDrvInsR3, pszIID, PDMINETWORKUP, &pThis->INetworkUpR0);
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378 | return NIL_RTR0PTR;
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379 | }
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380 |
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381 |
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382 | /* -=-=-=-=- PDMIBASE -=-=-=-=- */
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383 |
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384 | /**
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385 | * @interface_method_impl{PDMIBASE,pfnQueryInterface}
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386 | */
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387 | static DECLCALLBACK(void *) drvR3DedicatedNicIBase_QueryInterface(PPDMIBASE pInterface, const char *pszIID)
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388 | {
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389 | PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
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390 | PDRVDEDICATEDNIC pThis = PDMINS_2_DATA(pDrvIns, PDRVDEDICATEDNIC);
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391 |
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392 | PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
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393 | PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASER0, &pThis->IBaseR0);
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394 | PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKUP, &pThis->INetworkUpR3);
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395 | return NULL;
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396 | }
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397 |
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398 | # endif /* Currently unused */
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399 |
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400 |
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401 | /* -=-=-=-=- PDMDRVREG -=-=-=-=- */
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402 |
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403 | /**
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404 | * @interface_method_impl{PDMDRVREG,pfnPowerOff}
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405 | */
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406 | static DECLCALLBACK(void) drvR3DedicatedNicPowerOff(PPDMDRVINS pDrvIns)
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407 | {
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408 | LogFlow(("drvR3DedicatedNicPowerOff\n"));
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409 | int rc = PDMDrvHlpCallR0(pDrvIns, DRVDEDICATEDNICR0OP_SUSPEND, 0);
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410 | AssertRC(rc);
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411 | }
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412 |
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413 |
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414 | /**
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415 | * @interface_method_impl{PDMDRVREG,pfnResume}
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416 | */
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417 | static DECLCALLBACK(void) drvR3DedicatedNicResume(PPDMDRVINS pDrvIns)
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418 | {
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419 | LogFlow(("drvR3DedicatedNicPowerResume\n"));
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420 | int rc = PDMDrvHlpCallR0(pDrvIns, DRVDEDICATEDNICR0OP_RESUME, 0);
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421 | AssertRC(rc);
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422 | }
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423 |
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424 |
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425 | /**
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426 | * @interface_method_impl{PDMDRVREG,pfnSuspend}
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427 | */
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428 | static DECLCALLBACK(void) drvR3DedicatedNicSuspend(PPDMDRVINS pDrvIns)
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429 | {
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430 | LogFlow(("drvR3DedicatedNicPowerSuspend\n"));
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431 | int rc = PDMDrvHlpCallR0(pDrvIns, DRVDEDICATEDNICR0OP_SUSPEND, 0);
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432 | AssertRC(rc);
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433 | }
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434 |
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435 |
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436 | /**
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437 | * @interface_method_impl{PDMDRVREG,pfnPowerOn}
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438 | */
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439 | static DECLCALLBACK(void) drvR3DedicatedNicPowerOn(PPDMDRVINS pDrvIns)
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440 | {
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441 | LogFlow(("drvR3DedicatedNicPowerOn\n"));
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442 | int rc = PDMDrvHlpCallR0(pDrvIns, DRVDEDICATEDNICR0OP_RESUME, 0);
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443 | AssertRC(rc);
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444 | }
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445 |
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446 |
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447 | /**
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448 | * @interface_method_impl{PDMDRVREG,pfnDestruct}
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449 | */
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450 | static DECLCALLBACK(void) drvR3DedicatedNicDestruct(PPDMDRVINS pDrvIns)
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451 | {
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452 | LogFlow(("drvR3DedicatedNicDestruct\n"));
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453 | PDRVDEDICATEDNIC pThis = PDMINS_2_DATA(pDrvIns, PDRVDEDICATEDNIC);
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454 | PDMDRV_CHECK_VERSIONS_RETURN_VOID(pDrvIns);
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455 |
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456 | if (pThis->pIfPortR0)
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457 | {
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458 | int rc = PDMDrvHlpCallR0(pDrvIns, DRVDEDICATEDNICR0OP_TERM, 0);
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459 | AssertRC(rc);;
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460 | }
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461 | }
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462 |
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463 |
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464 | /**
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465 | * @interface_method_impl{PDMDRVREG,pfnConstruct}
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466 | */
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467 | static DECLCALLBACK(int) drvR3DedicatedNicConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
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468 | {
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469 | RT_NOREF(pCfg, fFlags);
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470 | PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
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471 | PDRVDEDICATEDNIC pThis = PDMINS_2_DATA(pDrvIns, PDRVDEDICATEDNIC);
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472 |
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473 | /*
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474 | * Init the static parts.
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475 | */
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476 | pThis->pDrvInsR3 = pDrvIns;
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477 | pThis->pDrvInsR0 = PDMDRVINS_2_R0PTR(pDrvIns);
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478 | #if 0
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479 | pThis->hRecvThread = NIL_RTTHREAD;
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480 | pThis->hRecvEvt = NIL_RTSEMEVENT;
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481 | pThis->pXmitThread = NULL;
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482 | pThis->hXmitEvt = NIL_SUPSEMEVENT;
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483 | pThis->pSupDrvSession = PDMDrvHlpGetSupDrvSession(pDrvIns);
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484 | pThis->hSgCache = NIL_RTMEMCACHE;
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485 | pThis->enmRecvState = RECVSTATE_SUSPENDED;
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486 | pThis->fActivateEarlyDeactivateLate = false;
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487 | /* IBase* */
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488 | pDrvIns->IBase.pfnQueryInterface = drvR3DedicatedNicIBase_QueryInterface;
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489 | pThis->IBaseR0.pfnQueryInterface = drvR3DedicatedNicIBaseR0_QueryInterface;
|
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490 | pThis->IBaseRC.pfnQueryInterface = drvR3DedicatedNicIBaseRC_QueryInterface;
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491 | /* INetworkUp */
|
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492 | pThis->INetworkUpR3.pfnBeginXmit = drvDedicatedNic_BeginXmit;
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493 | pThis->INetworkUpR3.pfnAllocBuf = drvDedicatedNic_AllocBuf;
|
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494 | pThis->INetworkUpR3.pfnFreeBuf = drvDedicatedNic_FreeBuf;
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495 | pThis->INetworkUpR3.pfnSendBuf = drvDedicatedNic_SendBuf;
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496 | pThis->INetworkUpR3.pfnEndXmit = drvDedicatedNic_EndXmit;
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497 | pThis->INetworkUpR3.pfnSetPromiscuousMode = drvDedicatedNic_SetPromiscuousMode;
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498 | pThis->INetworkUpR3.pfnNotifyLinkChanged = drvR3DedicatedNicUp_NotifyLinkChanged;
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499 | #endif
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500 |
|
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501 | /** @todo
|
---|
502 | * Need to create a generic way of calling into the ring-0 side of the driver so
|
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503 | * we can initialize the thing as well as send and receive. Hmm ... the
|
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504 | * sending could be done more efficiently from a ring-0 kernel thread actually
|
---|
505 | * (saves context switching and 1-2 copy operations). Ditto for receive, except
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506 | * we need to tie the thread to the process or we cannot access the guest ram so
|
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507 | * easily.
|
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508 | */
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509 |
|
---|
510 | return VERR_NOT_IMPLEMENTED;
|
---|
511 | }
|
---|
512 |
|
---|
513 |
|
---|
514 |
|
---|
515 | /**
|
---|
516 | * Internal networking transport driver registration record.
|
---|
517 | */
|
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518 | const PDMDRVREG g_DrvDedicatedNic =
|
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519 | {
|
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520 | /* u32Version */
|
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521 | PDM_DRVREG_VERSION,
|
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522 | /* szName */
|
---|
523 | "DedicatedNic",
|
---|
524 | /* szRCMod */
|
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525 | "",
|
---|
526 | /* szR0Mod */
|
---|
527 | "VBoxDDR0.r0",
|
---|
528 | /* pszDescription */
|
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529 | "Dedicated (V)NIC Driver",
|
---|
530 | /* fFlags */
|
---|
531 | PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT | PDM_DRVREG_FLAGS_R0,
|
---|
532 | /* fClass. */
|
---|
533 | PDM_DRVREG_CLASS_NETWORK,
|
---|
534 | /* cMaxInstances */
|
---|
535 | ~0U,
|
---|
536 | /* cbInstance */
|
---|
537 | sizeof(DRVDEDICATEDNIC),
|
---|
538 | /* pfnConstruct */
|
---|
539 | drvR3DedicatedNicConstruct,
|
---|
540 | /* pfnDestruct */
|
---|
541 | drvR3DedicatedNicDestruct,
|
---|
542 | /* pfnRelocate */
|
---|
543 | NULL,
|
---|
544 | /* pfnIOCtl */
|
---|
545 | NULL,
|
---|
546 | /* pfnPowerOn */
|
---|
547 | drvR3DedicatedNicPowerOn,
|
---|
548 | /* pfnReset */
|
---|
549 | NULL,
|
---|
550 | /* pfnSuspend */
|
---|
551 | drvR3DedicatedNicSuspend,
|
---|
552 | /* pfnResume */
|
---|
553 | drvR3DedicatedNicResume,
|
---|
554 | /* pfnAttach */
|
---|
555 | NULL,
|
---|
556 | /* pfnDetach */
|
---|
557 | NULL,
|
---|
558 | /* pfnPowerOff */
|
---|
559 | drvR3DedicatedNicPowerOff,
|
---|
560 | /* pfnSoftReset */
|
---|
561 | NULL,
|
---|
562 | /* u32EndVersion */
|
---|
563 | PDM_DRVREG_VERSION
|
---|
564 | };
|
---|
565 |
|
---|
566 | #endif /* IN_RING3 */
|
---|
567 |
|
---|