1 | /* $Id: DevVirtioNet.cpp 100883 2023-08-16 11:39:26Z vboxsync $ $Revision: 100883 $ $Date: 2023-08-16 11:39:26 +0000 (Wed, 16 Aug 2023) $ $Author: vboxsync $ */
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2 |
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3 | /** @file
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4 | * VBox storage devices - Virtio NET Driver
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5 | *
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6 | * Log-levels used:
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7 | * - Level 1: The most important (but usually rare) things to note
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8 | * - Level 2: NET command logging
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9 | * - Level 3: Vector and I/O transfer summary (shows what client sent an expects and fulfillment)
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10 | * - Level 6: Device <-> Guest Driver negotation, traffic, notifications and state handling
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11 | * - Level 12: Brief formatted hex dumps of I/O data
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12 | */
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13 |
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14 | /*
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15 | * Copyright (C) 2006-2023 Oracle and/or its affiliates.
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16 | *
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17 | * This file is part of VirtualBox base platform packages, as
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18 | * available from https://www.virtualbox.org.
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19 | *
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20 | * This program is free software; you can redistribute it and/or
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21 | * modify it under the terms of the GNU General Public License
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22 | * as published by the Free Software Foundation, in version 3 of the
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23 | * License.
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24 | *
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25 | * This program is distributed in the hope that it will be useful, but
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26 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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28 | * General Public License for more details.
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29 | *
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30 | * You should have received a copy of the GNU General Public License
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31 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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32 | *
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33 | * SPDX-License-Identifier: GPL-3.0-only
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34 | */
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35 |
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36 | /*******************************************************************************************************************************
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37 | * Header Files *
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38 | ***************************************************************************************************************************** **/
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39 | #define LOG_GROUP LOG_GROUP_DEV_VIRTIO
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40 | #define VIRTIONET_WITH_GSO
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41 |
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42 | #include <iprt/types.h>
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43 | #include <iprt/errcore.h>
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44 | #include <iprt/assert.h>
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45 | #include <iprt/string.h>
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46 |
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47 | #include <VBox/sup.h>
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48 | #include <VBox/vmm/pdmdev.h>
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49 | #include <VBox/vmm/stam.h>
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50 | #include <VBox/vmm/pdmcritsect.h>
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51 | #include <VBox/vmm/pdmnetifs.h>
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52 | #include <VBox/msi.h>
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53 | #include <VBox/version.h>
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54 | #include <VBox/log.h>
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55 | #include <VBox/pci.h>
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56 |
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57 |
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58 | #ifdef IN_RING3
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59 | # include <VBox/VBoxPktDmp.h>
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60 | # include <iprt/alloc.h>
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61 | # include <iprt/memcache.h>
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62 | # include <iprt/semaphore.h>
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63 | # include <iprt/sg.h>
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64 | # include <iprt/param.h>
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65 | # include <iprt/uuid.h>
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66 | #endif
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67 | #include "../VirtIO/VirtioCore.h"
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68 |
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69 | #include "VBoxDD.h"
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70 |
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71 | #define VIRTIONET_TRANSITIONAL_ENABLE_FLAG 1 /** < If set behave as VirtIO "transitional" device */
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72 |
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73 | /** The current saved state version for the virtio core. */
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74 | #define VIRTIONET_SAVEDSTATE_VERSION UINT32_C(1)
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75 | #define VIRTIONET_SAVEDSTATE_VERSION_3_1_BETA1_LEGACY UINT32_C(1) /**< Grandfathered in from DevVirtioNet.cpp */
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76 | #define VIRTIONET_SAVEDSTATE_VERSION_LEGACY UINT32_C(2) /**< Grandfathered in from DevVirtioNet.cpp */
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77 | #define VIRTIONET_VERSION_MARKER_MAC_ADDR { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff } /** SSM handling */
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78 |
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79 | /*
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80 | * Glossary of networking acronyms used in feature names below:
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81 | *
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82 | * GSO = Generic Segmentation Offload
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83 | * TSO = TCP Segmentation Offload
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84 | * UFO = UDP Fragmentation Offload
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85 | * ECN = Explicit Congestion Notification
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86 | */
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87 |
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88 | /** @name VirtIO 1.0 NET Host feature bits (See VirtIO 1.0 specification, Section 5.6.3)
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89 | * @{ */
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90 | #define VIRTIONET_F_CSUM RT_BIT_64(0) /**< Handle packets with partial checksum */
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91 | #define VIRTIONET_F_GUEST_CSUM RT_BIT_64(1) /**< Handles packets with partial checksum */
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92 | #define VIRTIONET_F_CTRL_GUEST_OFFLOADS RT_BIT_64(2) /**< Control channel offloads reconfig support */
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93 | #define VIRTIONET_F_MAC RT_BIT_64(5) /**< Device has given MAC address */
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94 | #define VIRTIONET_F_GUEST_TSO4 RT_BIT_64(7) /**< Driver can receive TSOv4 */
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95 | #define VIRTIONET_F_GUEST_TSO6 RT_BIT_64(8) /**< Driver can receive TSOv6 */
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96 | #define VIRTIONET_F_GUEST_ECN RT_BIT_64(9) /**< Driver can receive TSO with ECN */
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97 | #define VIRTIONET_F_GUEST_UFO RT_BIT_64(10) /**< Driver can receive UFO */
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98 | #define VIRTIONET_F_HOST_TSO4 RT_BIT_64(11) /**< Device can receive TSOv4 */
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99 | #define VIRTIONET_F_HOST_TSO6 RT_BIT_64(12) /**< Device can receive TSOv6 */
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100 | #define VIRTIONET_F_HOST_ECN RT_BIT_64(13) /**< Device can receive TSO with ECN */
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101 | #define VIRTIONET_F_HOST_UFO RT_BIT_64(14) /**< Device can receive UFO */
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102 | #define VIRTIONET_F_MRG_RXBUF RT_BIT_64(15) /**< Driver can merge receive buffers */
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103 | #define VIRTIONET_F_STATUS RT_BIT_64(16) /**< Config status field is available */
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104 | #define VIRTIONET_F_CTRL_VQ RT_BIT_64(17) /**< Control channel is available */
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105 | #define VIRTIONET_F_CTRL_RX RT_BIT_64(18) /**< Control channel RX mode + MAC addr filtering */
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106 | #define VIRTIONET_F_CTRL_VLAN RT_BIT_64(19) /**< Control channel VLAN filtering */
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107 | #define VIRTIONET_F_CTRL_RX_EXTRA RT_BIT_64(20) /**< Control channel RX mode extra functions */
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108 | #define VIRTIONET_F_GUEST_ANNOUNCE RT_BIT_64(21) /**< Driver can send gratuitous packets */
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109 | #define VIRTIONET_F_MQ RT_BIT_64(22) /**< Support ultiqueue with auto receive steering */
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110 | #define VIRTIONET_F_CTRL_MAC_ADDR RT_BIT_64(23) /**< Set MAC address through control channel */
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111 | /** @} */
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112 |
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113 | #ifdef IN_RING3
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114 | static const VIRTIO_FEATURES_LIST s_aDevSpecificFeatures[] =
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115 | {
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116 | { VIRTIONET_F_STATUS, " STATUS Configuration status field is available.\n" },
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117 | { VIRTIONET_F_MAC, " MAC Host has given MAC address.\n" },
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118 | { VIRTIONET_F_CTRL_VQ, " CTRL_VQ Control channel is available.\n" },
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119 | { VIRTIONET_F_CTRL_MAC_ADDR, " CTRL_MAC_ADDR Set MAC address through control channel.\n" },
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120 | { VIRTIONET_F_CTRL_RX, " CTRL_RX Control channel RX mode support.\n" },
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121 | { VIRTIONET_F_CTRL_VLAN, " CTRL_VLAN Control channel VLAN filtering.\n" },
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122 | { VIRTIONET_F_CTRL_GUEST_OFFLOADS, " CTRL_GUEST_OFFLOADS Control channel offloads reconfiguration support.\n" },
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123 | { VIRTIONET_F_GUEST_CSUM, " GUEST_CSUM Guest handles packets with partial checksum.\n" },
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124 | { VIRTIONET_F_GUEST_ANNOUNCE, " GUEST_ANNOUNCE Guest can send gratuitous packets.\n" },
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125 | { VIRTIONET_F_GUEST_TSO4, " GUEST_TSO4 Guest can receive TSOv4.\n" },
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126 | { VIRTIONET_F_GUEST_TSO6, " GUEST_TSO6 Guest can receive TSOv6.\n" },
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127 | { VIRTIONET_F_GUEST_ECN, " GUEST_ECN Guest can receive TSO with ECN.\n" },
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128 | { VIRTIONET_F_GUEST_UFO, " GUEST_UFO Guest can receive UFO.\n" },
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129 | { VIRTIONET_F_HOST_TSO4, " HOST_TSO4 Host can receive TSOv4.\n" },
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130 | { VIRTIONET_F_HOST_TSO6, " HOST_TSO6 Host can receive TSOv6.\n" },
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131 | { VIRTIONET_F_HOST_ECN, " HOST_ECN Host can receive TSO with ECN.\n" },
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132 | { VIRTIONET_F_HOST_UFO, " HOST_UFO Host can receive UFO.\n" },
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133 | { VIRTIONET_F_MQ, " MQ Host supports multiqueue with automatic receive steering.\n" },
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134 | { VIRTIONET_F_CSUM, " CSUM Host handles packets with partial checksum.\n" },
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135 | { VIRTIONET_F_MRG_RXBUF, " MRG_RXBUF Guest can merge receive buffers.\n" },
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136 | };
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137 | #endif
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138 |
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139 | #ifdef VIRTIONET_WITH_GSO
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140 | # define VIRTIONET_HOST_FEATURES_GSO \
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141 | VIRTIONET_F_CSUM \
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142 | | VIRTIONET_F_HOST_TSO4 \
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143 | | VIRTIONET_F_HOST_TSO6 \
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144 | | VIRTIONET_F_HOST_UFO \
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145 | | VIRTIONET_F_GUEST_TSO4 \
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146 | | VIRTIONET_F_GUEST_TSO6 \
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147 | | VIRTIONET_F_GUEST_UFO \
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148 | | VIRTIONET_F_GUEST_CSUM /* @bugref(4796) Guest must handle partial chksums */
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149 | #else
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150 | # define VIRTIONET_HOST_FEATURES_GSO
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151 | #endif
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152 |
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153 | #define VIRTIONET_HOST_FEATURES_OFFERED \
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154 | VIRTIONET_F_STATUS \
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155 | | VIRTIONET_F_GUEST_ANNOUNCE \
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156 | | VIRTIONET_F_MAC \
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157 | | VIRTIONET_F_CTRL_VQ \
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158 | | VIRTIONET_F_CTRL_RX \
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159 | | VIRTIONET_F_CTRL_VLAN \
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160 | | VIRTIONET_HOST_FEATURES_GSO \
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161 | | VIRTIONET_F_MRG_RXBUF
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162 |
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163 | #define FEATURE_ENABLED(feature) RT_BOOL(!!(pThis->fNegotiatedFeatures & VIRTIONET_F_##feature))
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164 | #define FEATURE_DISABLED(feature) (!FEATURE_ENABLED(feature))
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165 | #define FEATURE_OFFERED(feature) VIRTIONET_HOST_FEATURES_OFFERED & VIRTIONET_F_##feature
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166 |
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167 | #if FEATURE_OFFERED(MQ)
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168 | /* Instance data doesn't allow an array large enough to contain VIRTIONET_CTRL_MQ_VQ_PAIRS_MAX entries */
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169 | # define VIRTIONET_MAX_QPAIRS 1 /* This should be increased at some point and made to work */
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170 | #else
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171 | # define VIRTIONET_MAX_QPAIRS VIRTIONET_CTRL_MQ_VQ_PAIRS_MIN /* default, VirtIO 1.0, 5.1.6.5.5 */
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172 | #endif
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173 |
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174 | #define VIRTIONET_CTRL_MQ_VQ_PAIRS 64
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175 | #define VIRTIONET_MAX_WORKERS VIRTIONET_MAX_QPAIRS + 1
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176 | #define VIRTIONET_MAX_VIRTQS (VIRTIONET_MAX_QPAIRS * 2 + 1)
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177 | #define VIRTIONET_MAX_FRAME_SIZE 65535 + 18 /**< Max IP pkt size + Eth. header w/VLAN tag */
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178 | #define VIRTIONET_MAC_FILTER_LEN 64
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179 | #define VIRTIONET_MAX_VLAN_ID 4096
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180 | #define VIRTIONET_RX_SEG_COUNT 32
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181 |
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182 | #define VIRTQNAME(uVirtqNbr) (pThis->aVirtqs[uVirtqNbr]->szName)
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183 | #define CBVIRTQNAME(uVirtqNbr) RTStrNLen(VIRTQNAME(uVirtqNbr), sizeof(VIRTQNAME(uVirtqNbr)))
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184 |
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185 | #define IS_TX_VIRTQ(n) ((n) != CTRLQIDX && ((n) & 1))
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186 | #define IS_RX_VIRTQ(n) ((n) != CTRLQIDX && !IS_TX_VIRTQ(n))
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187 | #define IS_CTRL_VIRTQ(n) ((n) == CTRLQIDX)
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188 |
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189 | /*
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190 | * Macros to calculate queue type-pecific index number regardless of scale. VirtIO 1.0, 5.1.2
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191 | */
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192 | #define RXQIDX(qPairIdx) (qPairIdx * 2)
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193 | #define TXQIDX(qPairIdx) (RXQIDX(qPairIdx) + 1)
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194 | #define CTRLQIDX (FEATURE_ENABLED(MQ) ? ((VIRTIONET_MAX_QPAIRS - 1) * 2 + 2) : 2)
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195 |
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196 | #define IS_LINK_UP(pState) !!(pState->virtioNetConfig.uStatus & VIRTIONET_F_LINK_UP)
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197 | #define IS_LINK_DOWN(pState) !IS_LINK_UP(pState)
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198 |
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199 | #define SET_LINK_UP(pState) \
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200 | LogFunc(("SET_LINK_UP\n")); \
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201 | pState->virtioNetConfig.uStatus |= VIRTIONET_F_LINK_UP; \
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202 | virtioCoreNotifyConfigChanged(&pThis->Virtio)
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203 |
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204 | #define SET_LINK_DOWN(pState) \
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205 | LogFunc(("SET_LINK_DOWN\n")); \
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206 | pState->virtioNetConfig.uStatus &= ~VIRTIONET_F_LINK_UP; \
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207 | virtioCoreNotifyConfigChanged(&pThis->Virtio)
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208 |
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209 | #define IS_VIRTQ_EMPTY(pDevIns, pVirtio, uVirtqNbr) \
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210 | (virtioCoreVirtqAvailBufCount(pDevIns, pVirtio, uVirtqNbr) == 0)
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211 |
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212 | #define PCI_DEVICE_ID_VIRTIONET_HOST 0x1000 /**< VirtIO transitional device ID for network card */
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213 | #define PCI_CLASS_PROG_UNSPECIFIED 0x00 /**< Programming interface. N/A. */
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214 | #define VIRTIONET_PCI_CLASS 0x01 /**< Base class Mass Storage? */
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215 |
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216 | /**
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217 | * VirtIO Network (virtio-net) device-specific configuration subregion (VirtIO 1.0, 5.1.4)
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218 | * Guest MMIO is processed through callback to VirtIO core which forwards references to network configuration
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219 | * fields to this device-specific code through a callback.
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220 | */
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221 | #pragma pack(1)
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222 |
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223 | typedef struct virtio_net_config
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224 | {
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225 | RTMAC uMacAddress; /**< mac */
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226 |
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227 | #if FEATURE_OFFERED(STATUS)
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228 | uint16_t uStatus; /**< status */
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229 | #endif
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230 |
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231 | #if FEATURE_OFFERED(MQ)
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232 | uint16_t uMaxVirtqPairs; /**< max_virtq_pairs */
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233 | #endif
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234 |
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235 | } VIRTIONET_CONFIG_T, PVIRTIONET_CONFIG_T;
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236 |
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237 | #pragma pack()
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238 |
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239 | #define VIRTIONET_F_LINK_UP 1 /**< config status: Link is up */
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240 | #define VIRTIONET_F_ANNOUNCE 2 /**< config status: Announce */
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241 |
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242 | /** @name VirtIO 1.0 NET Host Device device specific control types
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243 | * @{ */
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244 | #define VIRTIONET_HDR_F_NEEDS_CSUM 1 /**< flags: Packet needs checksum */
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245 | #define VIRTIONET_HDR_GSO_NONE 0 /**< gso_type: No Global Segmentation Offset */
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246 | #define VIRTIONET_HDR_GSO_TCPV4 1 /**< gso_type: Global Segment Offset for TCPV4 */
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247 | #define VIRTIONET_HDR_GSO_UDP 3 /**< gso_type: Global Segment Offset for UDP */
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248 | #define VIRTIONET_HDR_GSO_TCPV6 4 /**< gso_type: Global Segment Offset for TCPV6 */
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249 | #define VIRTIONET_HDR_GSO_ECN 0x80 /**< gso_type: Explicit Congestion Notification */
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250 | /** @} */
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251 |
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252 | /* Device operation: Net header packet (VirtIO 1.0, 5.1.6) */
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253 | #pragma pack(1)
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254 | struct virtio_net_pkt_hdr {
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255 | uint8_t uFlags; /**< flags */
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256 | uint8_t uGsoType; /**< gso_type */
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257 | uint16_t uHdrLen; /**< hdr_len */
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258 | uint16_t uGsoSize; /**< gso_size */
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259 | uint16_t uChksumStart; /**< Chksum_start */
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260 | uint16_t uChksumOffset; /**< Chksum_offset */
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261 | uint16_t uNumBuffers; /**< num_buffers */
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262 | };
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263 | #pragma pack()
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264 | typedef virtio_net_pkt_hdr VIRTIONETPKTHDR, *PVIRTIONETPKTHDR;
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265 | AssertCompileSize(VIRTIONETPKTHDR, 12);
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266 |
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267 | /* Control virtq: Command entry (VirtIO 1.0, 5.1.6.5) */
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268 | #pragma pack(1)
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269 | struct virtio_net_ctrl_hdr {
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270 | uint8_t uClass; /**< class */
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271 | uint8_t uCmd; /**< command */
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272 | };
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273 | #pragma pack()
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274 | typedef virtio_net_ctrl_hdr VIRTIONET_CTRL_HDR_T, *PVIRTIONET_CTRL_HDR_T;
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275 |
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276 | typedef uint8_t VIRTIONET_CTRL_HDR_T_ACK;
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277 |
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278 | /* Command entry fAck values */
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279 | #define VIRTIONET_OK 0 /**< Internal success status */
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280 | #define VIRTIONET_ERROR 1 /**< Internal failure status */
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281 |
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282 | /** @name Control virtq: Receive filtering flags (VirtIO 1.0, 5.1.6.5.1)
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283 | * @{ */
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284 | #define VIRTIONET_CTRL_RX 0 /**< Control class: Receive filtering */
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285 | #define VIRTIONET_CTRL_RX_PROMISC 0 /**< Promiscuous mode */
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286 | #define VIRTIONET_CTRL_RX_ALLMULTI 1 /**< All-multicast receive */
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287 | #define VIRTIONET_CTRL_RX_ALLUNI 2 /**< All-unicast receive */
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288 | #define VIRTIONET_CTRL_RX_NOMULTI 3 /**< No multicast receive */
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289 | #define VIRTIONET_CTRL_RX_NOUNI 4 /**< No unicast receive */
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290 | #define VIRTIONET_CTRL_RX_NOBCAST 5 /**< No broadcast receive */
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291 | /** @} */
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292 |
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293 | typedef uint8_t VIRTIONET_MAC_ADDRESS[6];
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294 | typedef uint32_t VIRTIONET_CTRL_MAC_TABLE_LEN;
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295 | typedef uint8_t VIRTIONET_CTRL_MAC_ENTRIES[][6];
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296 |
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297 | /** @name Control virtq: MAC address filtering flags (VirtIO 1.0, 5.1.6.5.2)
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298 | * @{ */
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299 | #define VIRTIONET_CTRL_MAC 1 /**< Control class: MAC address filtering */
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300 | #define VIRTIONET_CTRL_MAC_TABLE_SET 0 /**< Set MAC table */
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301 | #define VIRTIONET_CTRL_MAC_ADDR_SET 1 /**< Set default MAC address */
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302 | /** @} */
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303 |
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304 | /** @name Control virtq: MAC address filtering flags (VirtIO 1.0, 5.1.6.5.3)
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305 | * @{ */
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306 | #define VIRTIONET_CTRL_VLAN 2 /**< Control class: VLAN filtering */
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307 | #define VIRTIONET_CTRL_VLAN_ADD 0 /**< Add VLAN to filter table */
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308 | #define VIRTIONET_CTRL_VLAN_DEL 1 /**< Delete VLAN from filter table */
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309 | /** @} */
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310 |
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311 | /** @name Control virtq: Gratuitous packet sending (VirtIO 1.0, 5.1.6.5.4)
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312 | * @{ */
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313 | #define VIRTIONET_CTRL_ANNOUNCE 3 /**< Control class: Gratuitous Packet Sending */
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314 | #define VIRTIONET_CTRL_ANNOUNCE_ACK 0 /**< Gratuitous Packet Sending ACK */
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315 | /** @} */
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316 |
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317 | struct virtio_net_ctrl_mq {
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318 | uint16_t uVirtqueuePairs; /**< virtqueue_pairs */
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319 | };
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320 |
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321 | /** @name Control virtq: Receive steering in multiqueue mode (VirtIO 1.0, 5.1.6.5.5)
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322 | * @{ */
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323 | #define VIRTIONET_CTRL_MQ 4 /**< Control class: Receive steering */
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324 | #define VIRTIONET_CTRL_MQ_VQ_PAIRS_SET 0 /**< Set number of TX/RX queues */
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325 | #define VIRTIONET_CTRL_MQ_VQ_PAIRS_MIN 1 /**< Minimum number of TX/RX queues */
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326 | #define VIRTIONET_CTRL_MQ_VQ_PAIRS_MAX 0x8000 /**< Maximum number of TX/RX queues */
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327 | /** @} */
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328 |
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329 | uint64_t uOffloads; /**< offloads */
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330 |
|
---|
331 | /** @name Control virtq: Setting Offloads State (VirtIO 1.0, 5.1.6.5.6.1)
|
---|
332 | * @{ */
|
---|
333 | #define VIRTIONET_CTRL_GUEST_OFFLOADS 5 /**< Control class: Offloads state configuration */
|
---|
334 | #define VIRTIONET_CTRL_GUEST_OFFLOADS_SET 0 /**< Apply new offloads configuration */
|
---|
335 | /** @} */
|
---|
336 |
|
---|
337 | typedef enum VIRTIONETPKTHDRTYPE
|
---|
338 | {
|
---|
339 | kVirtioNetUninitializedPktHdrType = 0, /**< Uninitialized (default) packet header type */
|
---|
340 | kVirtioNetModernPktHdrWithoutMrgRx = 1, /**< Packets should not be merged (modern driver) */
|
---|
341 | kVirtioNetModernPktHdrWithMrgRx = 2, /**< Packets should be merged (modern driver) */
|
---|
342 | kVirtioNetLegacyPktHdrWithoutMrgRx = 3, /**< Packets should not be merged (legacy driver) */
|
---|
343 | kVirtioNetLegacyPktHdrWithMrgRx = 4, /**< Packets should be merged (legacy driver) */
|
---|
344 | kVirtioNetFor32BitHack = 0x7fffffff
|
---|
345 | } VIRTIONETPKTHDRTYPE;
|
---|
346 |
|
---|
347 | /**
|
---|
348 | * device-specific queue info
|
---|
349 | */
|
---|
350 | struct VIRTIONETWORKER;
|
---|
351 | struct VIRTIONETWORKERR3;
|
---|
352 |
|
---|
353 | typedef struct VIRTIONETVIRTQ
|
---|
354 | {
|
---|
355 | uint16_t uIdx; /**< Index of this queue */
|
---|
356 | uint16_t align;
|
---|
357 | bool fCtlVirtq; /**< If set this queue is the control queue */
|
---|
358 | bool fHasWorker; /**< If set this queue has an associated worker */
|
---|
359 | bool fAttachedToVirtioCore; /**< Set if queue attached to virtio core */
|
---|
360 | char szName[VIRTIO_MAX_VIRTQ_NAME_SIZE]; /**< Virtq name */
|
---|
361 | } VIRTIONETVIRTQ, *PVIRTIONETVIRTQ;
|
---|
362 |
|
---|
363 | /**
|
---|
364 | * Worker thread context, shared state.
|
---|
365 | */
|
---|
366 | typedef struct VIRTIONETWORKER
|
---|
367 | {
|
---|
368 | SUPSEMEVENT hEvtProcess; /**< handle of associated sleep/wake-up semaphore */
|
---|
369 | uint16_t uIdx; /**< Index of this worker */
|
---|
370 | bool volatile fSleeping; /**< Flags whether worker thread is sleeping or not */
|
---|
371 | bool volatile fNotified; /**< Flags whether worker thread notified */
|
---|
372 | bool fAssigned; /**< Flags whether worker thread has been set up */
|
---|
373 | uint8_t pad;
|
---|
374 | } VIRTIONETWORKER;
|
---|
375 | /** Pointer to a virtio net worker. */
|
---|
376 | typedef VIRTIONETWORKER *PVIRTIONETWORKER;
|
---|
377 |
|
---|
378 | /**
|
---|
379 | * Worker thread context, ring-3 state.
|
---|
380 | */
|
---|
381 | typedef struct VIRTIONETWORKERR3
|
---|
382 | {
|
---|
383 | R3PTRTYPE(PPDMTHREAD) pThread; /**< pointer to worker thread's handle */
|
---|
384 | uint16_t uIdx; /**< Index of this worker */
|
---|
385 | uint16_t pad;
|
---|
386 | } VIRTIONETWORKERR3;
|
---|
387 | /** Pointer to a virtio net worker. */
|
---|
388 | typedef VIRTIONETWORKERR3 *PVIRTIONETWORKERR3;
|
---|
389 |
|
---|
390 | /**
|
---|
391 | * VirtIO Host NET device state, shared edition.
|
---|
392 | *
|
---|
393 | * @extends VIRTIOCORE
|
---|
394 | */
|
---|
395 | typedef struct VIRTIONET
|
---|
396 | {
|
---|
397 | /** The core virtio state. */
|
---|
398 | VIRTIOCORE Virtio;
|
---|
399 |
|
---|
400 | /** Virtio device-specific configuration */
|
---|
401 | VIRTIONET_CONFIG_T virtioNetConfig;
|
---|
402 |
|
---|
403 | /** Per device-bound virtq worker-thread contexts (eventq slot unused) */
|
---|
404 | VIRTIONETWORKER aWorkers[VIRTIONET_MAX_VIRTQS];
|
---|
405 |
|
---|
406 | /** Track which VirtIO queues we've attached to */
|
---|
407 | VIRTIONETVIRTQ aVirtqs[VIRTIONET_MAX_VIRTQS];
|
---|
408 |
|
---|
409 | /** PDM device Instance name */
|
---|
410 | char szInst[16];
|
---|
411 |
|
---|
412 | /** VirtIO features negotiated with the guest, including generic core and device specific */
|
---|
413 | uint64_t fNegotiatedFeatures;
|
---|
414 |
|
---|
415 | /** Number of Rx/Tx queue pairs (only one if MQ feature not negotiated */
|
---|
416 | uint16_t cVirtqPairs;
|
---|
417 |
|
---|
418 | /** Number of Rx/Tx queue pairs that have already been initialized */
|
---|
419 | uint16_t cInitializedVirtqPairs;
|
---|
420 |
|
---|
421 | /** Number of virtqueues total (which includes each queue of each pair plus one control queue */
|
---|
422 | uint16_t cVirtqs;
|
---|
423 |
|
---|
424 | /** Number of worker threads (one for the control queue and one for each Tx queue) */
|
---|
425 | uint16_t cWorkers;
|
---|
426 |
|
---|
427 | /** Alignment */
|
---|
428 | uint16_t alignment;
|
---|
429 |
|
---|
430 | /** Indicates transmission in progress -- only one thread is allowed. */
|
---|
431 | uint32_t uIsTransmitting;
|
---|
432 |
|
---|
433 | /** Link up delay (in milliseconds). */
|
---|
434 | uint32_t cMsLinkUpDelay;
|
---|
435 |
|
---|
436 | /** The number of actually used slots in aMacMulticastFilter. */
|
---|
437 | uint32_t cMulticastFilterMacs;
|
---|
438 |
|
---|
439 | /** The number of actually used slots in aMacUniicastFilter. */
|
---|
440 | uint32_t cUnicastFilterMacs;
|
---|
441 |
|
---|
442 | /** Semaphore leaf device's thread waits on until guest driver sends empty Rx bufs */
|
---|
443 | SUPSEMEVENT hEventRxDescAvail;
|
---|
444 |
|
---|
445 | /** Array of MAC multicast addresses accepted by RX filter. */
|
---|
446 | RTMAC aMacMulticastFilter[VIRTIONET_MAC_FILTER_LEN];
|
---|
447 |
|
---|
448 | /** Array of MAC unicast addresses accepted by RX filter. */
|
---|
449 | RTMAC aMacUnicastFilter[VIRTIONET_MAC_FILTER_LEN];
|
---|
450 |
|
---|
451 | /** Default MAC address which rx filtering accepts */
|
---|
452 | RTMAC rxFilterMacDefault;
|
---|
453 |
|
---|
454 | /** MAC address obtained from the configuration. */
|
---|
455 | RTMAC macConfigured;
|
---|
456 |
|
---|
457 | /** Bit array of VLAN filter, one bit per VLAN ID. */
|
---|
458 | uint8_t aVlanFilter[VIRTIONET_MAX_VLAN_ID / sizeof(uint8_t)];
|
---|
459 |
|
---|
460 | /** Set if PDM leaf device at the network interface is starved for Rx buffers */
|
---|
461 | bool volatile fLeafWantsEmptyRxBufs;
|
---|
462 |
|
---|
463 | /** Number of packet being sent/received to show in debug log. */
|
---|
464 | uint32_t uPktNo;
|
---|
465 |
|
---|
466 | /** Flags whether VirtIO core is in ready state */
|
---|
467 | uint8_t fVirtioReady;
|
---|
468 |
|
---|
469 | /** Resetting flag */
|
---|
470 | uint8_t fResetting;
|
---|
471 |
|
---|
472 | /** Promiscuous mode -- RX filter accepts all packets. */
|
---|
473 | uint8_t fPromiscuous;
|
---|
474 |
|
---|
475 | /** All multicast mode -- RX filter accepts all multicast packets. */
|
---|
476 | uint8_t fAllMulticast;
|
---|
477 |
|
---|
478 | /** All unicast mode -- RX filter accepts all unicast packets. */
|
---|
479 | uint8_t fAllUnicast;
|
---|
480 |
|
---|
481 | /** No multicast mode - Supresses multicast receive */
|
---|
482 | uint8_t fNoMulticast;
|
---|
483 |
|
---|
484 | /** No unicast mode - Suppresses unicast receive */
|
---|
485 | uint8_t fNoUnicast;
|
---|
486 |
|
---|
487 | /** No broadcast mode - Supresses broadcast receive */
|
---|
488 | uint8_t fNoBroadcast;
|
---|
489 |
|
---|
490 | /** Type of network pkt header based on guest driver version/features */
|
---|
491 | VIRTIONETPKTHDRTYPE ePktHdrType;
|
---|
492 |
|
---|
493 | /** Size of network pkt header based on guest driver version/features */
|
---|
494 | uint16_t cbPktHdr;
|
---|
495 |
|
---|
496 | /** True if physical cable is attached in configuration. */
|
---|
497 | bool fCableConnected;
|
---|
498 |
|
---|
499 | /** True if this device should offer legacy virtio support to the guest */
|
---|
500 | bool fOfferLegacy;
|
---|
501 |
|
---|
502 | /** @name Statistic
|
---|
503 | * @{ */
|
---|
504 | STAMCOUNTER StatReceiveBytes;
|
---|
505 | STAMCOUNTER StatTransmitBytes;
|
---|
506 | STAMCOUNTER StatReceiveGSO;
|
---|
507 | STAMCOUNTER StatTransmitPackets;
|
---|
508 | STAMCOUNTER StatTransmitGSO;
|
---|
509 | STAMCOUNTER StatTransmitCSum;
|
---|
510 | #ifdef VBOX_WITH_STATISTICS
|
---|
511 | STAMPROFILE StatReceive;
|
---|
512 | STAMPROFILE StatReceiveStore;
|
---|
513 | STAMPROFILEADV StatTransmit;
|
---|
514 | STAMPROFILE StatTransmitSend;
|
---|
515 | STAMPROFILE StatRxOverflow;
|
---|
516 | STAMCOUNTER StatRxOverflowWakeup;
|
---|
517 | STAMCOUNTER StatTransmitByNetwork;
|
---|
518 | STAMCOUNTER StatTransmitByThread;
|
---|
519 | /** @} */
|
---|
520 | #endif
|
---|
521 | } VIRTIONET;
|
---|
522 | /** Pointer to the shared state of the VirtIO Host NET device. */
|
---|
523 | typedef VIRTIONET *PVIRTIONET;
|
---|
524 |
|
---|
525 | /**
|
---|
526 | * VirtIO Host NET device state, ring-3 edition.
|
---|
527 | *
|
---|
528 | * @extends VIRTIOCORER3
|
---|
529 | */
|
---|
530 | typedef struct VIRTIONETR3
|
---|
531 | {
|
---|
532 | /** The core virtio ring-3 state. */
|
---|
533 | VIRTIOCORER3 Virtio;
|
---|
534 |
|
---|
535 | /** Per device-bound virtq worker-thread contexts (eventq slot unused) */
|
---|
536 | VIRTIONETWORKERR3 aWorkers[VIRTIONET_MAX_VIRTQS];
|
---|
537 |
|
---|
538 | /** The device instance.
|
---|
539 | * @note This is _only_ for use whxen dealing with interface callbacks. */
|
---|
540 | PPDMDEVINSR3 pDevIns;
|
---|
541 |
|
---|
542 | /** Status LUN: Base interface. */
|
---|
543 | PDMIBASE IBase;
|
---|
544 |
|
---|
545 | /** Status LUN: LED port interface. */
|
---|
546 | PDMILEDPORTS ILeds;
|
---|
547 |
|
---|
548 | /** Status LUN: LED connector (peer). */
|
---|
549 | R3PTRTYPE(PPDMILEDCONNECTORS) pLedsConnector;
|
---|
550 |
|
---|
551 | /** Status: LED */
|
---|
552 | PDMLED led;
|
---|
553 |
|
---|
554 | /** Attached network driver. */
|
---|
555 | R3PTRTYPE(PPDMIBASE) pDrvBase;
|
---|
556 |
|
---|
557 | /** Network port interface (down) */
|
---|
558 | PDMINETWORKDOWN INetworkDown;
|
---|
559 |
|
---|
560 | /** Network config port interface (main). */
|
---|
561 | PDMINETWORKCONFIG INetworkConfig;
|
---|
562 |
|
---|
563 | /** Connector of attached network driver. */
|
---|
564 | R3PTRTYPE(PPDMINETWORKUP) pDrv;
|
---|
565 |
|
---|
566 | /** Link Up(/Restore) Timer. */
|
---|
567 | TMTIMERHANDLE hLinkUpTimer;
|
---|
568 |
|
---|
569 | } VIRTIONETR3;
|
---|
570 |
|
---|
571 | /** Pointer to the ring-3 state of the VirtIO Host NET device. */
|
---|
572 | typedef VIRTIONETR3 *PVIRTIONETR3;
|
---|
573 |
|
---|
574 | /**
|
---|
575 | * VirtIO Host NET device state, ring-0 edition.
|
---|
576 | */
|
---|
577 | typedef struct VIRTIONETR0
|
---|
578 | {
|
---|
579 | /** The core virtio ring-0 state. */
|
---|
580 | VIRTIOCORER0 Virtio;
|
---|
581 | } VIRTIONETR0;
|
---|
582 | /** Pointer to the ring-0 state of the VirtIO Host NET device. */
|
---|
583 | typedef VIRTIONETR0 *PVIRTIONETR0;
|
---|
584 |
|
---|
585 | /**
|
---|
586 | * VirtIO Host NET device state, raw-mode edition.
|
---|
587 | */
|
---|
588 | typedef struct VIRTIONETRC
|
---|
589 | {
|
---|
590 | /** The core virtio raw-mode state. */
|
---|
591 | VIRTIOCORERC Virtio;
|
---|
592 | } VIRTIONETRC;
|
---|
593 | /** Pointer to the ring-0 state of the VirtIO Host NET device. */
|
---|
594 | typedef VIRTIONETRC *PVIRTIONETRC;
|
---|
595 |
|
---|
596 | /** @typedef VIRTIONETCC
|
---|
597 | * The instance data for the current context. */
|
---|
598 | typedef CTX_SUFF(VIRTIONET) VIRTIONETCC;
|
---|
599 |
|
---|
600 | /** @typedef PVIRTIONETCC
|
---|
601 | * Pointer to the instance data for the current context. */
|
---|
602 | typedef CTX_SUFF(PVIRTIONET) PVIRTIONETCC;
|
---|
603 |
|
---|
604 | #ifdef IN_RING3
|
---|
605 | static DECLCALLBACK(int) virtioNetR3WorkerThread(PPDMDEVINS pDevIns, PPDMTHREAD pThread);
|
---|
606 | static int virtioNetR3CreateWorkerThreads(PPDMDEVINS, PVIRTIONET, PVIRTIONETCC);
|
---|
607 |
|
---|
608 | /**
|
---|
609 | * Helper function used when logging state of a VM thread.
|
---|
610 | *
|
---|
611 | * @param Thread
|
---|
612 | *
|
---|
613 | * @return Associated name of thread as a pointer to a zero-terminated string.
|
---|
614 | */
|
---|
615 | DECLINLINE(const char *) virtioNetThreadStateName(PPDMTHREAD pThread)
|
---|
616 | {
|
---|
617 | if (!pThread)
|
---|
618 | return "<null>";
|
---|
619 |
|
---|
620 | switch(pThread->enmState)
|
---|
621 | {
|
---|
622 | case PDMTHREADSTATE_INVALID:
|
---|
623 | return "invalid state";
|
---|
624 | case PDMTHREADSTATE_INITIALIZING:
|
---|
625 | return "initializing";
|
---|
626 | case PDMTHREADSTATE_SUSPENDING:
|
---|
627 | return "suspending";
|
---|
628 | case PDMTHREADSTATE_SUSPENDED:
|
---|
629 | return "suspended";
|
---|
630 | case PDMTHREADSTATE_RESUMING:
|
---|
631 | return "resuming";
|
---|
632 | case PDMTHREADSTATE_RUNNING:
|
---|
633 | return "running";
|
---|
634 | case PDMTHREADSTATE_TERMINATING:
|
---|
635 | return "terminating";
|
---|
636 | case PDMTHREADSTATE_TERMINATED:
|
---|
637 | return "terminated";
|
---|
638 | default:
|
---|
639 | return "unknown state";
|
---|
640 | }
|
---|
641 | }
|
---|
642 | #endif
|
---|
643 |
|
---|
644 | /**
|
---|
645 | * Wakeup PDM managed downstream (e.g. hierarchically inferior device's) RX thread
|
---|
646 | */
|
---|
647 | static DECLCALLBACK(void) virtioNetWakeupRxBufWaiter(PPDMDEVINS pDevIns)
|
---|
648 | {
|
---|
649 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
650 |
|
---|
651 | AssertReturnVoid(pThis->hEventRxDescAvail != NIL_SUPSEMEVENT);
|
---|
652 |
|
---|
653 | STAM_COUNTER_INC(&pThis->StatRxOverflowWakeup);
|
---|
654 | if (pThis->hEventRxDescAvail != NIL_SUPSEMEVENT)
|
---|
655 | {
|
---|
656 | Log10Func(("[%s] Waking downstream device's Rx buf waiter thread\n", pThis->szInst));
|
---|
657 | int rc = PDMDevHlpSUPSemEventSignal(pDevIns, pThis->hEventRxDescAvail);
|
---|
658 | AssertRC(rc);
|
---|
659 | }
|
---|
660 | }
|
---|
661 |
|
---|
662 | /**
|
---|
663 | * Guest notifying us of its activity with a queue. Figure out which queue and respond accordingly.
|
---|
664 | *
|
---|
665 | * @callback_method_impl{VIRTIOCORER0,pfnVirtqNotified}
|
---|
666 | */
|
---|
667 | static DECLCALLBACK(void) virtioNetVirtqNotified(PPDMDEVINS pDevIns, PVIRTIOCORE pVirtio, uint16_t uVirtqNbr)
|
---|
668 | {
|
---|
669 | RT_NOREF(pVirtio);
|
---|
670 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
671 |
|
---|
672 | PVIRTIONETVIRTQ pVirtq = &pThis->aVirtqs[uVirtqNbr];
|
---|
673 | PVIRTIONETWORKER pWorker = &pThis->aWorkers[uVirtqNbr];
|
---|
674 |
|
---|
675 | #if defined (IN_RING3) && defined (LOG_ENABLED)
|
---|
676 | RTLogFlush(NULL);
|
---|
677 | #endif
|
---|
678 | if (IS_RX_VIRTQ(uVirtqNbr))
|
---|
679 | {
|
---|
680 | uint16_t cBufsAvailable = virtioCoreVirtqAvailBufCount(pDevIns, pVirtio, uVirtqNbr);
|
---|
681 |
|
---|
682 | if (cBufsAvailable)
|
---|
683 | {
|
---|
684 | Log10Func(("%s %u empty bufs added to %s by guest (notifying leaf device)\n",
|
---|
685 | pThis->szInst, cBufsAvailable, pVirtq->szName));
|
---|
686 | virtioNetWakeupRxBufWaiter(pDevIns);
|
---|
687 | }
|
---|
688 | else
|
---|
689 | Log10Func(("%s \n\n***WARNING: %s notified but no empty bufs added by guest! (skip leaf dev. notification)\n\n",
|
---|
690 | pThis->szInst, pVirtq->szName));
|
---|
691 | }
|
---|
692 | else if (IS_TX_VIRTQ(uVirtqNbr) || IS_CTRL_VIRTQ(uVirtqNbr))
|
---|
693 | {
|
---|
694 | /* Wake queue's worker thread up if sleeping (e.g. a Tx queue, or the control queue */
|
---|
695 | if (!ASMAtomicXchgBool(&pWorker->fNotified, true))
|
---|
696 | {
|
---|
697 | if (ASMAtomicReadBool(&pWorker->fSleeping))
|
---|
698 | {
|
---|
699 | Log10Func(("[%s] %s has available buffers - waking worker.\n", pThis->szInst, pVirtq->szName));
|
---|
700 |
|
---|
701 | int rc = PDMDevHlpSUPSemEventSignal(pDevIns, pWorker->hEvtProcess);
|
---|
702 | AssertRC(rc);
|
---|
703 | }
|
---|
704 | else
|
---|
705 | Log10Func(("[%s] %s has available buffers - worker already awake\n", pThis->szInst, pVirtq->szName));
|
---|
706 | }
|
---|
707 | else
|
---|
708 | Log10Func(("[%s] %s has available buffers - waking worker.\n", pThis->szInst, pVirtq->szName));
|
---|
709 | }
|
---|
710 | else
|
---|
711 | LogRelFunc(("[%s] unrecognized queue %s (idx=%d) notified\n", pThis->szInst, pVirtq->szName, uVirtqNbr));
|
---|
712 | }
|
---|
713 |
|
---|
714 | #ifdef IN_RING3 /* spans most of the file, at the moment. */
|
---|
715 |
|
---|
716 | /**
|
---|
717 | * @callback_method_impl{FNPDMTHREADWAKEUPDEV}
|
---|
718 | */
|
---|
719 | static DECLCALLBACK(int) virtioNetR3WakeupWorker(PPDMDEVINS pDevIns, PPDMTHREAD pThread)
|
---|
720 | {
|
---|
721 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
722 | PVIRTIONETWORKER pWorker = (PVIRTIONETWORKER)pThread->pvUser;
|
---|
723 |
|
---|
724 | Log10Func(("[%s]\n", pThis->szInst));
|
---|
725 | RT_NOREF(pThis);
|
---|
726 | return PDMDevHlpSUPSemEventSignal(pDevIns, pWorker->hEvtProcess);
|
---|
727 | }
|
---|
728 |
|
---|
729 | /**
|
---|
730 | * Set queue names, distinguishing between modern or legacy mode.
|
---|
731 | *
|
---|
732 | * @note This makes it obvious during logging which mode this transitional device is
|
---|
733 | * operating in, legacy or modern.
|
---|
734 | *
|
---|
735 | * @param pThis Device specific device state
|
---|
736 | * @param fLegacy (input) true if running in legacy mode
|
---|
737 | * false if running in modern mode
|
---|
738 | */
|
---|
739 | DECLINLINE(void) virtioNetR3SetVirtqNames(PVIRTIONET pThis, uint32_t fLegacy)
|
---|
740 | {
|
---|
741 | RTStrCopy(pThis->aVirtqs[CTRLQIDX].szName, VIRTIO_MAX_VIRTQ_NAME_SIZE, fLegacy ? "legacy-ctrlq" : " modern-ctrlq");
|
---|
742 | for (uint16_t qPairIdx = 0; qPairIdx < pThis->cVirtqPairs; qPairIdx++)
|
---|
743 | {
|
---|
744 | RTStrPrintf(pThis->aVirtqs[RXQIDX(qPairIdx)].szName, VIRTIO_MAX_VIRTQ_NAME_SIZE, "%s-recvq<%d>", fLegacy ? "legacy" : "modern", qPairIdx);
|
---|
745 | RTStrPrintf(pThis->aVirtqs[TXQIDX(qPairIdx)].szName, VIRTIO_MAX_VIRTQ_NAME_SIZE, "%s-xmitq<%d>", fLegacy ? "legacy" : "modern", qPairIdx);
|
---|
746 | }
|
---|
747 | }
|
---|
748 |
|
---|
749 | /**
|
---|
750 | * Dump a packet to debug log.
|
---|
751 | *
|
---|
752 | * @param pThis The virtio-net shared instance data.
|
---|
753 | * @param pbPacket The packet.
|
---|
754 | * @param cb The size of the packet.
|
---|
755 | * @param pszText A string denoting direction of packet transfer.
|
---|
756 | */
|
---|
757 | DECLINLINE(void) virtioNetR3PacketDump(PVIRTIONET pThis, const uint8_t *pbPacket, size_t cb, const char *pszText)
|
---|
758 | {
|
---|
759 | #ifdef LOG_ENABLED
|
---|
760 | if (!LogIs12Enabled())
|
---|
761 | return;
|
---|
762 | #endif
|
---|
763 | vboxEthPacketDump(pThis->szInst, pszText, pbPacket, (uint32_t)cb);
|
---|
764 | }
|
---|
765 |
|
---|
766 | #ifdef LOG_ENABLED
|
---|
767 | void virtioNetDumpGcPhysRxBuf(PPDMDEVINS pDevIns, PVIRTIONETPKTHDR pRxPktHdr,
|
---|
768 | uint16_t cVirtqBufs, uint8_t *pvBuf, uint16_t cb, RTGCPHYS GCPhysRxBuf, uint8_t cbRxBuf)
|
---|
769 | {
|
---|
770 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
771 | pRxPktHdr->uNumBuffers = cVirtqBufs;
|
---|
772 | if (pRxPktHdr)
|
---|
773 | {
|
---|
774 | LogFunc(("%*c\nrxPktHdr\n"
|
---|
775 | " uFlags ......... %2.2x\n uGsoType ....... %2.2x\n uHdrLen ........ %4.4x\n"
|
---|
776 | " uGsoSize ....... %4.4x\n uChksumStart ... %4.4x\n uChksumOffset .. %4.4x\n",
|
---|
777 | 60, ' ', pRxPktHdr->uFlags, pRxPktHdr->uGsoType, pRxPktHdr->uHdrLen, pRxPktHdr->uGsoSize,
|
---|
778 | pRxPktHdr->uChksumStart, pRxPktHdr->uChksumOffset));
|
---|
779 | if (!virtioCoreIsLegacyMode(&pThis->Virtio) || FEATURE_ENABLED(MRG_RXBUF))
|
---|
780 | LogFunc((" uNumBuffers .... %4.4x\n", pRxPktHdr->uNumBuffers));
|
---|
781 | virtioCoreHexDump((uint8_t *)pRxPktHdr, sizeof(VIRTIONETPKTHDR), 0, "Dump of virtual rPktHdr");
|
---|
782 | }
|
---|
783 | virtioNetR3PacketDump(pThis, (const uint8_t *)pvBuf, cb, "<-- Incoming");
|
---|
784 | LogFunc((". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\n"));
|
---|
785 | virtioCoreGCPhysHexDump(pDevIns, GCPhysRxBuf, cbRxBuf, 0, "Phys Mem Dump of Rx pkt");
|
---|
786 | LogFunc(("%*c", 60, '-'));
|
---|
787 | }
|
---|
788 |
|
---|
789 | #endif /* LOG_ENABLED */
|
---|
790 |
|
---|
791 | /**
|
---|
792 | * @callback_method_impl{FNDBGFHANDLERDEV, virtio-net debugger info callback.}
|
---|
793 | */
|
---|
794 | static DECLCALLBACK(void) virtioNetR3Info(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
|
---|
795 | {
|
---|
796 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
797 | PVIRTIONETCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVIRTIONETCC);
|
---|
798 |
|
---|
799 | bool fNone = pszArgs && *pszArgs == '\0';
|
---|
800 | bool fAll = pszArgs && (*pszArgs == 'a' || *pszArgs == 'A'); /* "all" */
|
---|
801 | bool fNetwork = pszArgs && (*pszArgs == 'n' || *pszArgs == 'N'); /* "network" */
|
---|
802 | bool fFeatures = pszArgs && (*pszArgs == 'f' || *pszArgs == 'F'); /* "features" */
|
---|
803 | bool fState = pszArgs && (*pszArgs == 's' || *pszArgs == 'S'); /* "state" */
|
---|
804 | bool fPointers = pszArgs && (*pszArgs == 'p' || *pszArgs == 'P'); /* "pointers" */
|
---|
805 | bool fVirtqs = pszArgs && (*pszArgs == 'q' || *pszArgs == 'Q'); /* "queues */
|
---|
806 |
|
---|
807 | /* Show basic information. */
|
---|
808 | pHlp->pfnPrintf(pHlp,
|
---|
809 | "\n"
|
---|
810 | "---------------------------------------------------------------------------\n"
|
---|
811 | "Debug Info: %s\n"
|
---|
812 | " (options: [a]ll, [n]et, [f]eatures, [s]tate, [p]ointers, [q]ueues)\n"
|
---|
813 | "---------------------------------------------------------------------------\n\n",
|
---|
814 | pThis->szInst);
|
---|
815 |
|
---|
816 | if (fNone)
|
---|
817 | return;
|
---|
818 |
|
---|
819 | /* Show offered/unoffered, accepted/rejected features */
|
---|
820 | if (fAll || fFeatures)
|
---|
821 | {
|
---|
822 | virtioCorePrintDeviceFeatures(&pThis->Virtio, pHlp, s_aDevSpecificFeatures,
|
---|
823 | RT_ELEMENTS(s_aDevSpecificFeatures));
|
---|
824 | pHlp->pfnPrintf(pHlp, "\n");
|
---|
825 | }
|
---|
826 |
|
---|
827 | /* Show queues (and associate worker info if applicable) */
|
---|
828 | if (fAll || fVirtqs)
|
---|
829 | {
|
---|
830 | pHlp->pfnPrintf(pHlp, "Virtq information:\n\n");
|
---|
831 | for (int uVirtqNbr = 0; uVirtqNbr < pThis->cVirtqs; uVirtqNbr++)
|
---|
832 | {
|
---|
833 | PVIRTIONETVIRTQ pVirtq = &pThis->aVirtqs[uVirtqNbr];
|
---|
834 |
|
---|
835 | if (pVirtq->fHasWorker)
|
---|
836 | {
|
---|
837 | PVIRTIONETWORKER pWorker = &pThis->aWorkers[uVirtqNbr];
|
---|
838 | PVIRTIONETWORKERR3 pWorkerR3 = &pThisCC->aWorkers[uVirtqNbr];
|
---|
839 |
|
---|
840 | Assert((pWorker->uIdx == pVirtq->uIdx));
|
---|
841 | Assert((pWorkerR3->uIdx == pVirtq->uIdx));
|
---|
842 |
|
---|
843 | if (pWorker->fAssigned)
|
---|
844 | {
|
---|
845 | pHlp->pfnPrintf(pHlp, " %-15s (pThread: %p %s) ",
|
---|
846 | pVirtq->szName,
|
---|
847 | pWorkerR3->pThread,
|
---|
848 | virtioNetThreadStateName(pWorkerR3->pThread));
|
---|
849 | if (pVirtq->fAttachedToVirtioCore)
|
---|
850 | {
|
---|
851 | pHlp->pfnPrintf(pHlp, "worker: ");
|
---|
852 | pHlp->pfnPrintf(pHlp, "%s", pWorker->fSleeping ? "blocking" : "unblocked");
|
---|
853 | pHlp->pfnPrintf(pHlp, "%s", pWorker->fNotified ? ", notified" : "");
|
---|
854 | }
|
---|
855 | else
|
---|
856 | if (pWorker->fNotified)
|
---|
857 | pHlp->pfnPrintf(pHlp, "not attached to virtio core");
|
---|
858 | }
|
---|
859 | }
|
---|
860 | else
|
---|
861 | {
|
---|
862 | pHlp->pfnPrintf(pHlp, " %-15s (INetworkDown's thread) %s", pVirtq->szName,
|
---|
863 | pVirtq->fAttachedToVirtioCore ? "" : "not attached to virtio core");
|
---|
864 | }
|
---|
865 | pHlp->pfnPrintf(pHlp, "\n");
|
---|
866 | virtioCoreR3VirtqInfo(pDevIns, pHlp, pszArgs, uVirtqNbr);
|
---|
867 | pHlp->pfnPrintf(pHlp, " ---------------------------------------------------------------------\n");
|
---|
868 | pHlp->pfnPrintf(pHlp, "\n");
|
---|
869 | }
|
---|
870 | pHlp->pfnPrintf(pHlp, "\n");
|
---|
871 | }
|
---|
872 |
|
---|
873 | /* Show various pointers */
|
---|
874 | if (fAll || fPointers)
|
---|
875 | {
|
---|
876 | pHlp->pfnPrintf(pHlp, "Internal Pointers (for instance \"%s\"):\n\n", pThis->szInst);
|
---|
877 | pHlp->pfnPrintf(pHlp, " pDevIns ................... %p\n", pDevIns);
|
---|
878 | pHlp->pfnPrintf(pHlp, " PVIRTIOCORE ............... %p\n", &pThis->Virtio);
|
---|
879 | pHlp->pfnPrintf(pHlp, " PVIRTIONET ................ %p\n", pThis);
|
---|
880 | pHlp->pfnPrintf(pHlp, " PVIRTIONETCC .............. %p\n", pThisCC);
|
---|
881 | pHlp->pfnPrintf(pHlp, " VIRTIONETVIRTQ[] .......... %p\n", pThis->aVirtqs);
|
---|
882 | pHlp->pfnPrintf(pHlp, " pDrvBase .................. %p\n", pThisCC->pDrvBase);
|
---|
883 | pHlp->pfnPrintf(pHlp, " pDrv ...................... %p\n", pThisCC->pDrv);
|
---|
884 | pHlp->pfnPrintf(pHlp, "\n");
|
---|
885 | }
|
---|
886 |
|
---|
887 | /* Show device state info */
|
---|
888 | if (fAll || fState)
|
---|
889 | {
|
---|
890 | pHlp->pfnPrintf(pHlp, "Device state:\n\n");
|
---|
891 | uint32_t fTransmitting = ASMAtomicReadU32(&pThis->uIsTransmitting);
|
---|
892 |
|
---|
893 | pHlp->pfnPrintf(pHlp, " Transmitting: ............. %s\n", fTransmitting ? "true" : "false");
|
---|
894 | pHlp->pfnPrintf(pHlp, "\n");
|
---|
895 | pHlp->pfnPrintf(pHlp, "Misc state\n");
|
---|
896 | pHlp->pfnPrintf(pHlp, "\n");
|
---|
897 | pHlp->pfnPrintf(pHlp, " fOfferLegacy .............. %d\n", pThis->fOfferLegacy);
|
---|
898 | pHlp->pfnPrintf(pHlp, " fVirtioReady .............. %d\n", pThis->fVirtioReady);
|
---|
899 | pHlp->pfnPrintf(pHlp, " fResetting ................ %d\n", pThis->fResetting);
|
---|
900 | pHlp->pfnPrintf(pHlp, " fGenUpdatePending ......... %d\n", pThis->Virtio.fGenUpdatePending);
|
---|
901 | pHlp->pfnPrintf(pHlp, " fMsiSupport ............... %d\n", pThis->Virtio.fMsiSupport);
|
---|
902 | pHlp->pfnPrintf(pHlp, " uConfigGeneration ......... %d\n", pThis->Virtio.uConfigGeneration);
|
---|
903 | pHlp->pfnPrintf(pHlp, " uDeviceStatus ............. 0x%x\n", pThis->Virtio.fDeviceStatus);
|
---|
904 | pHlp->pfnPrintf(pHlp, " cVirtqPairs .,............. %d\n", pThis->cVirtqPairs);
|
---|
905 | pHlp->pfnPrintf(pHlp, " cVirtqs .,................. %d\n", pThis->cVirtqs);
|
---|
906 | pHlp->pfnPrintf(pHlp, " cWorkers .................. %d\n", pThis->cWorkers);
|
---|
907 | pHlp->pfnPrintf(pHlp, " MMIO mapping name ......... %d\n", pThisCC->Virtio.szMmioName);
|
---|
908 | pHlp->pfnPrintf(pHlp, "\n");
|
---|
909 | }
|
---|
910 |
|
---|
911 | /* Show network related information */
|
---|
912 | if (fAll || fNetwork)
|
---|
913 | {
|
---|
914 | pHlp->pfnPrintf(pHlp, "Network configuration:\n\n");
|
---|
915 | pHlp->pfnPrintf(pHlp, " MAC: ...................... %RTmac\n", &pThis->macConfigured);
|
---|
916 | pHlp->pfnPrintf(pHlp, "\n");
|
---|
917 | pHlp->pfnPrintf(pHlp, " Cable: .................... %s\n", pThis->fCableConnected ? "connected" : "disconnected");
|
---|
918 | pHlp->pfnPrintf(pHlp, " Link-up delay: ............ %d ms\n", pThis->cMsLinkUpDelay);
|
---|
919 | pHlp->pfnPrintf(pHlp, "\n");
|
---|
920 | pHlp->pfnPrintf(pHlp, " Accept all multicast: ..... %s\n", pThis->fAllMulticast ? "true" : "false");
|
---|
921 | pHlp->pfnPrintf(pHlp, " Suppress broadcast: ....... %s\n", pThis->fNoBroadcast ? "true" : "false");
|
---|
922 | pHlp->pfnPrintf(pHlp, " Suppress unicast: ......... %s\n", pThis->fNoUnicast ? "true" : "false");
|
---|
923 | pHlp->pfnPrintf(pHlp, " Suppress multicast: ....... %s\n", pThis->fNoMulticast ? "true" : "false");
|
---|
924 | pHlp->pfnPrintf(pHlp, " Promiscuous: .............. %s\n", pThis->fPromiscuous ? "true" : "false");
|
---|
925 | pHlp->pfnPrintf(pHlp, "\n");
|
---|
926 | pHlp->pfnPrintf(pHlp, " Default Rx MAC filter: .... %RTmac\n", pThis->rxFilterMacDefault);
|
---|
927 | pHlp->pfnPrintf(pHlp, "\n");
|
---|
928 |
|
---|
929 | pHlp->pfnPrintf(pHlp, " Unicast filter MACs:\n");
|
---|
930 |
|
---|
931 | if (!pThis->cUnicastFilterMacs)
|
---|
932 | pHlp->pfnPrintf(pHlp, " <none>\n");
|
---|
933 |
|
---|
934 | for (uint32_t i = 0; i < pThis->cUnicastFilterMacs; i++)
|
---|
935 | pHlp->pfnPrintf(pHlp, " %RTmac\n", &pThis->aMacUnicastFilter[i]);
|
---|
936 |
|
---|
937 | pHlp->pfnPrintf(pHlp, "\n Multicast filter MACs:\n");
|
---|
938 |
|
---|
939 | if (!pThis->cMulticastFilterMacs)
|
---|
940 | pHlp->pfnPrintf(pHlp, " <none>\n");
|
---|
941 |
|
---|
942 | for (uint32_t i = 0; i < pThis->cMulticastFilterMacs; i++)
|
---|
943 | pHlp->pfnPrintf(pHlp, " %RTmac\n", &pThis->aMacMulticastFilter[i]);
|
---|
944 |
|
---|
945 | pHlp->pfnPrintf(pHlp, "\n\n");
|
---|
946 | pHlp->pfnPrintf(pHlp, " Leaf starved: ............. %s\n", pThis->fLeafWantsEmptyRxBufs ? "true" : "false");
|
---|
947 | pHlp->pfnPrintf(pHlp, "\n");
|
---|
948 | }
|
---|
949 | /** @todo implement this
|
---|
950 | * pHlp->pfnPrintf(pHlp, "\n");
|
---|
951 | * virtioCoreR3Info(pDevIns, pHlp, pszArgs);
|
---|
952 | */
|
---|
953 | pHlp->pfnPrintf(pHlp, "\n");
|
---|
954 | }
|
---|
955 |
|
---|
956 | /**
|
---|
957 | * Checks whether certain mutually dependent negotiated features are clustered in required combinations.
|
---|
958 | *
|
---|
959 | * @note See VirtIO 1.0 spec, Section 5.1.3.1
|
---|
960 | *
|
---|
961 | * @param fFeatures Bitmask of negotiated features to evaluate
|
---|
962 | *
|
---|
963 | * @returns true if valid feature combination(s) found.
|
---|
964 | * false if non-valid feature set.
|
---|
965 | */
|
---|
966 | DECLINLINE(bool) virtioNetValidateRequiredFeatures(uint32_t fFeatures)
|
---|
967 | {
|
---|
968 | uint32_t fGuestChksumRequired = fFeatures & VIRTIONET_F_GUEST_TSO4
|
---|
969 | || fFeatures & VIRTIONET_F_GUEST_TSO6
|
---|
970 | || fFeatures & VIRTIONET_F_GUEST_UFO;
|
---|
971 |
|
---|
972 | uint32_t fHostChksumRequired = fFeatures & VIRTIONET_F_HOST_TSO4
|
---|
973 | || fFeatures & VIRTIONET_F_HOST_TSO6
|
---|
974 | || fFeatures & VIRTIONET_F_HOST_UFO;
|
---|
975 |
|
---|
976 | uint32_t fCtrlVqRequired = fFeatures & VIRTIONET_F_CTRL_RX
|
---|
977 | || fFeatures & VIRTIONET_F_CTRL_VLAN
|
---|
978 | || fFeatures & VIRTIONET_F_GUEST_ANNOUNCE
|
---|
979 | || fFeatures & VIRTIONET_F_MQ
|
---|
980 | || fFeatures & VIRTIONET_F_CTRL_MAC_ADDR;
|
---|
981 |
|
---|
982 | if (fGuestChksumRequired && !(fFeatures & VIRTIONET_F_GUEST_CSUM))
|
---|
983 | return false;
|
---|
984 |
|
---|
985 | if (fHostChksumRequired && !(fFeatures & VIRTIONET_F_CSUM))
|
---|
986 | return false;
|
---|
987 |
|
---|
988 | if (fCtrlVqRequired && !(fFeatures & VIRTIONET_F_CTRL_VQ))
|
---|
989 | return false;
|
---|
990 |
|
---|
991 | if ( fFeatures & VIRTIONET_F_GUEST_ECN
|
---|
992 | && !( fFeatures & VIRTIONET_F_GUEST_TSO4
|
---|
993 | || fFeatures & VIRTIONET_F_GUEST_TSO6))
|
---|
994 | return false;
|
---|
995 |
|
---|
996 | if ( fFeatures & VIRTIONET_F_HOST_ECN
|
---|
997 | && !( fFeatures & VIRTIONET_F_HOST_TSO4
|
---|
998 | || fFeatures & VIRTIONET_F_HOST_TSO6))
|
---|
999 | return false;
|
---|
1000 | return true;
|
---|
1001 | }
|
---|
1002 |
|
---|
1003 | /**
|
---|
1004 | * Read or write device-specific configuration parameters.
|
---|
1005 | * This is called by VirtIO core code a guest-initiated MMIO access is made to access device-specific
|
---|
1006 | * configuration
|
---|
1007 | *
|
---|
1008 | * @note See VirtIO 1.0 spec, 2.3 Device Configuration Space
|
---|
1009 | *
|
---|
1010 | * @param pThis Pointer to device-specific state
|
---|
1011 | * @param uOffsetOfAccess Offset (within VIRTIONET_CONFIG_T)
|
---|
1012 | * @param pv Pointer to data to read or write
|
---|
1013 | * @param cb Number of bytes to read or write
|
---|
1014 | * @param fWrite True if writing, false if reading
|
---|
1015 | *
|
---|
1016 | * @returns VINF_SUCCESS if successful, or VINF_IOM_MMIO_UNUSED if fails (bad offset or size)
|
---|
1017 | */
|
---|
1018 | static int virtioNetR3DevCfgAccess(PVIRTIONET pThis, uint32_t uOffsetOfAccess, void *pv, uint32_t cb, bool fWrite)
|
---|
1019 | {
|
---|
1020 | AssertReturn(pv && cb <= sizeof(uint32_t), fWrite ? VINF_SUCCESS : VINF_IOM_MMIO_UNUSED_00);
|
---|
1021 |
|
---|
1022 | if (VIRTIO_DEV_CONFIG_SUBMATCH_MEMBER( uMacAddress, VIRTIONET_CONFIG_T, uOffsetOfAccess))
|
---|
1023 | VIRTIO_DEV_CONFIG_ACCESS_READONLY( uMacAddress, VIRTIONET_CONFIG_T, uOffsetOfAccess, &pThis->virtioNetConfig);
|
---|
1024 | #if FEATURE_OFFERED(STATUS)
|
---|
1025 | else
|
---|
1026 | if (VIRTIO_DEV_CONFIG_SUBMATCH_MEMBER( uStatus, VIRTIONET_CONFIG_T, uOffsetOfAccess))
|
---|
1027 | VIRTIO_DEV_CONFIG_ACCESS_READONLY( uStatus, VIRTIONET_CONFIG_T, uOffsetOfAccess, &pThis->virtioNetConfig);
|
---|
1028 | #endif
|
---|
1029 | #if FEATURE_OFFERED(MQ)
|
---|
1030 | else
|
---|
1031 | if (VIRTIO_DEV_CONFIG_MATCH_MEMBER( uMaxVirtqPairs, VIRTIONET_CONFIG_T, uOffsetOfAccess))
|
---|
1032 | VIRTIO_DEV_CONFIG_ACCESS_READONLY( uMaxVirtqPairs, VIRTIONET_CONFIG_T, uOffsetOfAccess, &pThis->virtioNetConfig);
|
---|
1033 | #endif
|
---|
1034 | else
|
---|
1035 | {
|
---|
1036 | LogFunc(("%s Bad access by guest to virtio_net_config: off=%u (%#x), cb=%u\n",
|
---|
1037 | pThis->szInst, uOffsetOfAccess, uOffsetOfAccess, cb));
|
---|
1038 | return fWrite ? VINF_SUCCESS : VINF_IOM_MMIO_UNUSED_00;
|
---|
1039 | }
|
---|
1040 | return VINF_SUCCESS;
|
---|
1041 | }
|
---|
1042 |
|
---|
1043 | /**
|
---|
1044 | * @callback_method_impl{VIRTIOCORER3,pfnDevCapRead}
|
---|
1045 | */
|
---|
1046 | static DECLCALLBACK(int) virtioNetR3DevCapRead(PPDMDEVINS pDevIns, uint32_t uOffset, void *pv, uint32_t cb)
|
---|
1047 | {
|
---|
1048 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
1049 |
|
---|
1050 | RT_NOREF(pThis);
|
---|
1051 | return virtioNetR3DevCfgAccess(PDMDEVINS_2_DATA(pDevIns, PVIRTIONET), uOffset, pv, cb, false /*fRead*/);
|
---|
1052 | }
|
---|
1053 |
|
---|
1054 | /**
|
---|
1055 | * @callback_method_impl{VIRTIOCORER3,pfnDevCapWrite}
|
---|
1056 | */
|
---|
1057 | static DECLCALLBACK(int) virtioNetR3DevCapWrite(PPDMDEVINS pDevIns, uint32_t uOffset, const void *pv, uint32_t cb)
|
---|
1058 | {
|
---|
1059 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
1060 |
|
---|
1061 | Log10Func(("[%s] uOffset: %u, cb: %u: %.*Rhxs\n", pThis->szInst, uOffset, cb, cb, pv));
|
---|
1062 | RT_NOREF(pThis);
|
---|
1063 | return virtioNetR3DevCfgAccess(PDMDEVINS_2_DATA(pDevIns, PVIRTIONET), uOffset, (void *)pv, cb, true /*fWrite*/);
|
---|
1064 | }
|
---|
1065 |
|
---|
1066 | static int virtioNetR3VirtqDestroy(PVIRTIOCORE pVirtio, PVIRTIONETVIRTQ pVirtq)
|
---|
1067 | {
|
---|
1068 | PVIRTIONET pThis = RT_FROM_MEMBER(pVirtio, VIRTIONET, Virtio);
|
---|
1069 | PVIRTIONETCC pThisCC = PDMDEVINS_2_DATA_CC(pVirtio->pDevInsR3, PVIRTIONETCC);
|
---|
1070 | PVIRTIONETWORKER pWorker = &pThis->aWorkers[pVirtq->uIdx];
|
---|
1071 | PVIRTIONETWORKERR3 pWorkerR3 = &pThisCC->aWorkers[pVirtq->uIdx];
|
---|
1072 |
|
---|
1073 | int rc = VINF_SUCCESS, rcThread;
|
---|
1074 | Log10Func(("[%s] Destroying \"%s\"", pThis->szInst, pVirtq->szName));
|
---|
1075 | if (pVirtq->fHasWorker)
|
---|
1076 | {
|
---|
1077 | Log10((" and its worker"));
|
---|
1078 | rc = PDMDevHlpThreadDestroy(pVirtio->pDevInsR3, pWorkerR3->pThread, &rcThread);
|
---|
1079 | AssertRCReturn(rc, rc);
|
---|
1080 | pWorkerR3->pThread = 0;
|
---|
1081 |
|
---|
1082 | rc = PDMDevHlpSUPSemEventClose(pVirtio->pDevInsR3, pWorker->hEvtProcess);
|
---|
1083 | AssertRCReturn(rc, rc);
|
---|
1084 | pWorker->hEvtProcess = 0;
|
---|
1085 |
|
---|
1086 | pVirtq->fHasWorker = false;
|
---|
1087 | }
|
---|
1088 | pWorker->fAssigned = false;
|
---|
1089 | pVirtq->fCtlVirtq = false;
|
---|
1090 | Log10(("\n"));
|
---|
1091 | return rc;
|
---|
1092 | }
|
---|
1093 |
|
---|
1094 | /**
|
---|
1095 | * Takes down the link temporarily if its current status is up.
|
---|
1096 | *
|
---|
1097 | * This is used during restore and when replumbing the network link.
|
---|
1098 | *
|
---|
1099 | * The temporary link outage is supposed to indicate to the OS that all network
|
---|
1100 | * connections have been lost and that it for instance is appropriate to
|
---|
1101 | * renegotiate any DHCP lease.
|
---|
1102 | *
|
---|
1103 | * @param pDevIns The device instance.
|
---|
1104 | * @param pThis The virtio-net shared instance data.
|
---|
1105 | * @param pThisCC The virtio-net ring-3 instance data.
|
---|
1106 | */
|
---|
1107 | static void virtioNetR3TempLinkDown(PPDMDEVINS pDevIns, PVIRTIONET pThis, PVIRTIONETCC pThisCC)
|
---|
1108 | {
|
---|
1109 | if (IS_LINK_UP(pThis))
|
---|
1110 | {
|
---|
1111 | SET_LINK_DOWN(pThis);
|
---|
1112 |
|
---|
1113 | /* Re-establish link in 5 seconds. */
|
---|
1114 | int rc = PDMDevHlpTimerSetMillies(pDevIns, pThisCC->hLinkUpTimer, pThis->cMsLinkUpDelay);
|
---|
1115 | AssertRC(rc);
|
---|
1116 |
|
---|
1117 | LogFunc(("[%s] Link is down temporarily\n", pThis->szInst));
|
---|
1118 | }
|
---|
1119 | }
|
---|
1120 |
|
---|
1121 |
|
---|
1122 | static void virtioNetConfigurePktHdr(PVIRTIONET pThis, uint32_t fLegacy)
|
---|
1123 | {
|
---|
1124 | /* Calculate network packet header type and size based on what we know now */
|
---|
1125 | pThis->cbPktHdr = sizeof(VIRTIONETPKTHDR);
|
---|
1126 | if (!fLegacy)
|
---|
1127 | /* Modern (e.g. >= VirtIO 1.0) device specification's pkt size rules */
|
---|
1128 | if (FEATURE_ENABLED(MRG_RXBUF))
|
---|
1129 | pThis->ePktHdrType = kVirtioNetModernPktHdrWithMrgRx;
|
---|
1130 | else /* Modern guest driver with MRG_RX feature disabled */
|
---|
1131 | pThis->ePktHdrType = kVirtioNetModernPktHdrWithoutMrgRx;
|
---|
1132 | else
|
---|
1133 | {
|
---|
1134 | /* Legacy (e.g. < VirtIO 1.0) device specification's pkt size rules */
|
---|
1135 | if (FEATURE_ENABLED(MRG_RXBUF))
|
---|
1136 | pThis->ePktHdrType = kVirtioNetLegacyPktHdrWithMrgRx;
|
---|
1137 | else /* Legacy guest with MRG_RX feature disabled */
|
---|
1138 | {
|
---|
1139 | pThis->ePktHdrType = kVirtioNetLegacyPktHdrWithoutMrgRx;
|
---|
1140 | pThis->cbPktHdr -= RT_SIZEOFMEMB(VIRTIONETPKTHDR, uNumBuffers);
|
---|
1141 | }
|
---|
1142 | }
|
---|
1143 | }
|
---|
1144 |
|
---|
1145 |
|
---|
1146 | /*********************************************************************************************************************************
|
---|
1147 | * Saved state *
|
---|
1148 | *********************************************************************************************************************************/
|
---|
1149 |
|
---|
1150 | /**
|
---|
1151 | * @callback_method_impl{FNSSMDEVLOADEXEC}
|
---|
1152 | *
|
---|
1153 | * @note: This is included to accept and migrate VMs that had used the original VirtualBox legacy-only virtio-net (network card)
|
---|
1154 | * controller device emulator ("DevVirtioNet.cpp") to work with this superset of VirtIO compatibility known
|
---|
1155 | * as a transitional device (see PDM-invoked device constructor comments for more information)
|
---|
1156 | */
|
---|
1157 | static DECLCALLBACK(int) virtioNetR3LegacyDeviceLoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass,
|
---|
1158 | RTMAC uMacLoaded)
|
---|
1159 | {
|
---|
1160 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
1161 | PVIRTIONETCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVIRTIONETCC);
|
---|
1162 | PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
|
---|
1163 | int rc;
|
---|
1164 |
|
---|
1165 | Log7Func(("[%s] LOAD EXEC (LEGACY)!!\n", pThis->szInst));
|
---|
1166 |
|
---|
1167 | if ( memcmp(&uMacLoaded.au8, &pThis->macConfigured.au8, sizeof(uMacLoaded))
|
---|
1168 | && ( uPass == 0
|
---|
1169 | || !PDMDevHlpVMTeleportedAndNotFullyResumedYet(pDevIns)))
|
---|
1170 | LogRelFunc(("[%s]: The mac address differs: config=%RTmac saved=%RTmac\n",
|
---|
1171 | pThis->szInst, &pThis->macConfigured, &uMacLoaded));
|
---|
1172 |
|
---|
1173 | if (uPass == SSM_PASS_FINAL)
|
---|
1174 | {
|
---|
1175 | /* Call the virtio core to have it load legacy device state */
|
---|
1176 | rc = virtioCoreR3LegacyDeviceLoadExec(&pThis->Virtio, pDevIns->pHlpR3, pSSM, uVersion, VIRTIONET_SAVEDSTATE_VERSION_3_1_BETA1_LEGACY);
|
---|
1177 | AssertRCReturn(rc, rc);
|
---|
1178 | /*
|
---|
1179 | * Scan constructor-determined virtqs to determine if they are all valid-as-restored.
|
---|
1180 | * If so, nudge them with a signal, otherwise destroy the unusable queue(s)
|
---|
1181 | * to avoid tripping up the other queue processing logic.
|
---|
1182 | */
|
---|
1183 | int cVirtqsToRemove = 0;
|
---|
1184 | for (int uVirtqNbr = 0; uVirtqNbr < pThis->cVirtqs; uVirtqNbr++)
|
---|
1185 | {
|
---|
1186 | PVIRTIONETVIRTQ pVirtq = &pThis->aVirtqs[uVirtqNbr];
|
---|
1187 | if (pVirtq->fHasWorker)
|
---|
1188 | {
|
---|
1189 | if (!virtioCoreR3VirtqIsEnabled(&pThis->Virtio, uVirtqNbr))
|
---|
1190 | {
|
---|
1191 | virtioNetR3VirtqDestroy(&pThis->Virtio, pVirtq);
|
---|
1192 | ++cVirtqsToRemove;
|
---|
1193 | }
|
---|
1194 | else
|
---|
1195 | {
|
---|
1196 | if (virtioCoreR3VirtqIsAttached(&pThis->Virtio, uVirtqNbr))
|
---|
1197 | {
|
---|
1198 | Log7Func(("[%s] Waking %s worker.\n", pThis->szInst, pVirtq->szName));
|
---|
1199 | rc = PDMDevHlpSUPSemEventSignal(pDevIns, pThis->aWorkers[pVirtq->uIdx].hEvtProcess);
|
---|
1200 | AssertRCReturn(rc, rc);
|
---|
1201 | }
|
---|
1202 | }
|
---|
1203 | }
|
---|
1204 | }
|
---|
1205 | AssertMsg(cVirtqsToRemove < 2, ("Multiple unusable queues in saved state unexpected\n"));
|
---|
1206 | pThis->cVirtqs -= cVirtqsToRemove;
|
---|
1207 |
|
---|
1208 | pThis->virtioNetConfig.uStatus = pThis->Virtio.fDeviceStatus;
|
---|
1209 | pThis->fVirtioReady = pThis->Virtio.fDeviceStatus & VIRTIO_STATUS_DRIVER_OK;
|
---|
1210 |
|
---|
1211 | rc = pHlp->pfnSSMGetMem(pSSM, pThis->virtioNetConfig.uMacAddress.au8, sizeof(pThis->virtioNetConfig.uMacAddress));
|
---|
1212 | AssertRCReturn(rc, rc);
|
---|
1213 |
|
---|
1214 | if (uVersion > VIRTIONET_SAVEDSTATE_VERSION_3_1_BETA1_LEGACY)
|
---|
1215 | {
|
---|
1216 | /* Zero-out the the Unicast/Multicast filter table */
|
---|
1217 | memset(&pThis->aMacUnicastFilter[0], 0, VIRTIONET_MAC_FILTER_LEN * sizeof(RTMAC));
|
---|
1218 |
|
---|
1219 | rc = pHlp->pfnSSMGetU8( pSSM, &pThis->fPromiscuous);
|
---|
1220 | AssertRCReturn(rc, rc);
|
---|
1221 | rc = pHlp->pfnSSMGetU8( pSSM, &pThis->fAllMulticast);
|
---|
1222 | AssertRCReturn(rc, rc);
|
---|
1223 | /*
|
---|
1224 | * The 0.95 legacy virtio spec defines a control queue command VIRTIO_NET_CTRL_MAC_TABLE_SET,
|
---|
1225 | * wherein guest driver configures two variable length mac filter tables: A unicast filter,
|
---|
1226 | * and a multicast filter. However original VBox virtio-net saved both sets of filter entries
|
---|
1227 | * in a single table, abandoning the distinction between unicast and multicast filters. It preserved
|
---|
1228 | * only *one* filter's table length, leaving no way to separate table back out into respective unicast
|
---|
1229 | * and multicast tables this device implementation preserves. Deduced from legacy code, the original
|
---|
1230 | * assumption was that the both MAC filters are whitelists that can be processed identically
|
---|
1231 | * (from the standpoint of a *single* host receiver), such that the distinction between unicast and
|
---|
1232 | * multicast doesn't matter in any one VM's context. Little choice here but to save the undifferentiated
|
---|
1233 | * unicast & multicast MACs to the unicast filter table and leave multicast table empty/unused.
|
---|
1234 | */
|
---|
1235 | uint32_t cCombinedUnicastMulticastEntries;
|
---|
1236 | rc = pHlp->pfnSSMGetU32(pSSM, &cCombinedUnicastMulticastEntries);
|
---|
1237 | AssertRCReturn(rc, rc);
|
---|
1238 | AssertReturn(cCombinedUnicastMulticastEntries <= VIRTIONET_MAC_FILTER_LEN, VERR_OUT_OF_RANGE);
|
---|
1239 | pThis->cUnicastFilterMacs = cCombinedUnicastMulticastEntries;
|
---|
1240 | rc = pHlp->pfnSSMGetMem(pSSM, pThis->aMacUnicastFilter, cCombinedUnicastMulticastEntries * sizeof(RTMAC));
|
---|
1241 | AssertRCReturn(rc, rc);
|
---|
1242 | rc = pHlp->pfnSSMGetMem(pSSM, pThis->aVlanFilter, sizeof(pThis->aVlanFilter));
|
---|
1243 | AssertRCReturn(rc, rc);
|
---|
1244 | }
|
---|
1245 | else
|
---|
1246 | {
|
---|
1247 | pThis->fAllMulticast = false;
|
---|
1248 | pThis->cUnicastFilterMacs = 0;
|
---|
1249 | memset(&pThis->aMacUnicastFilter, 0, VIRTIONET_MAC_FILTER_LEN * sizeof(RTMAC));
|
---|
1250 |
|
---|
1251 | memset(pThis->aVlanFilter, 0, sizeof(pThis->aVlanFilter));
|
---|
1252 |
|
---|
1253 | pThis->fPromiscuous = true;
|
---|
1254 | if (pThisCC->pDrv)
|
---|
1255 | pThisCC->pDrv->pfnSetPromiscuousMode(pThisCC->pDrv, true);
|
---|
1256 | }
|
---|
1257 |
|
---|
1258 | /*
|
---|
1259 | * Log the restored VirtIO feature selection.
|
---|
1260 | */
|
---|
1261 | pThis->fNegotiatedFeatures = virtioCoreGetNegotiatedFeatures(&pThis->Virtio);
|
---|
1262 | /** @todo shouldn't we update the virtio header size here? it depends on the negotiated features. */
|
---|
1263 | virtioCorePrintDeviceFeatures(&pThis->Virtio, NULL, s_aDevSpecificFeatures, RT_ELEMENTS(s_aDevSpecificFeatures));
|
---|
1264 |
|
---|
1265 | /*
|
---|
1266 | * Configure remaining transitional device parameters presumably or deductively
|
---|
1267 | * as these weren't part of the legacy device code thus it didn't save them to SSM
|
---|
1268 | */
|
---|
1269 | pThis->fCableConnected = 1;
|
---|
1270 | pThis->fAllUnicast = 0;
|
---|
1271 | pThis->fNoMulticast = 0;
|
---|
1272 | pThis->fNoUnicast = 0;
|
---|
1273 | pThis->fNoBroadcast = 0;
|
---|
1274 |
|
---|
1275 | /* Zero out the multicast table and count, all MAC filters, if any, are in the unicast filter table */
|
---|
1276 | pThis->cMulticastFilterMacs = 0;
|
---|
1277 | memset(&pThis->aMacMulticastFilter, 0, VIRTIONET_MAC_FILTER_LEN * sizeof(RTMAC));
|
---|
1278 | }
|
---|
1279 | return VINF_SUCCESS;
|
---|
1280 | }
|
---|
1281 |
|
---|
1282 | /**
|
---|
1283 | * @callback_method_impl{FNSSMDEVLOADEXEC}
|
---|
1284 | *
|
---|
1285 | * @note: This loads state saved by a Modern (VirtIO 1.0+) device, of which this transitional device is one,
|
---|
1286 | * and thus supports both legacy and modern guest virtio drivers.
|
---|
1287 | */
|
---|
1288 | static DECLCALLBACK(int) virtioNetR3ModernLoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
|
---|
1289 | {
|
---|
1290 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
1291 | PVIRTIONETCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVIRTIONETCC);
|
---|
1292 | PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
|
---|
1293 | int rc;
|
---|
1294 |
|
---|
1295 | RT_NOREF(pThisCC);
|
---|
1296 |
|
---|
1297 | RTMAC uMacLoaded, uVersionMarkerMac = { VIRTIONET_VERSION_MARKER_MAC_ADDR };
|
---|
1298 | rc = pHlp->pfnSSMGetMem(pSSM, &uMacLoaded.au8, sizeof(uMacLoaded.au8));
|
---|
1299 | AssertRCReturn(rc, rc);
|
---|
1300 | if (memcmp(&uMacLoaded.au8, uVersionMarkerMac.au8, sizeof(uVersionMarkerMac.au8)))
|
---|
1301 | {
|
---|
1302 | rc = virtioNetR3LegacyDeviceLoadExec(pDevIns, pSSM, uVersion, uPass, uMacLoaded);
|
---|
1303 | return rc;
|
---|
1304 | }
|
---|
1305 |
|
---|
1306 | Log7Func(("[%s] LOAD EXEC!!\n", pThis->szInst));
|
---|
1307 |
|
---|
1308 | AssertReturn(uPass == SSM_PASS_FINAL, VERR_SSM_UNEXPECTED_PASS);
|
---|
1309 | AssertLogRelMsgReturn(uVersion == VIRTIONET_SAVEDSTATE_VERSION,
|
---|
1310 | ("uVersion=%u\n", uVersion), VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION);
|
---|
1311 |
|
---|
1312 | virtioNetR3SetVirtqNames(pThis, false /* fLegacy */);
|
---|
1313 |
|
---|
1314 | pHlp->pfnSSMGetU64( pSSM, &pThis->fNegotiatedFeatures);
|
---|
1315 |
|
---|
1316 | pHlp->pfnSSMGetU16( pSSM, &pThis->cVirtqs);
|
---|
1317 | AssertReturn(pThis->cVirtqs <= (VIRTIONET_MAX_QPAIRS * 2) + 1, VERR_OUT_OF_RANGE);
|
---|
1318 | pHlp->pfnSSMGetU16( pSSM, &pThis->cWorkers);
|
---|
1319 | AssertReturn(pThis->cWorkers <= VIRTIONET_MAX_WORKERS , VERR_OUT_OF_RANGE);
|
---|
1320 |
|
---|
1321 | for (int uVirtqNbr = 0; uVirtqNbr < pThis->cVirtqs; uVirtqNbr++)
|
---|
1322 | pHlp->pfnSSMGetBool(pSSM, &pThis->aVirtqs[uVirtqNbr].fAttachedToVirtioCore);
|
---|
1323 |
|
---|
1324 | /* Config checks */
|
---|
1325 | RTMAC macConfigured;
|
---|
1326 | rc = pHlp->pfnSSMGetMem(pSSM, &macConfigured.au8, sizeof(macConfigured.au8));
|
---|
1327 | AssertRCReturn(rc, rc);
|
---|
1328 | if (memcmp(&macConfigured.au8, &pThis->macConfigured.au8, sizeof(macConfigured.au8))
|
---|
1329 | && (uPass == 0 || !PDMDevHlpVMTeleportedAndNotFullyResumedYet(pDevIns)))
|
---|
1330 | LogRel(("%s: The mac address differs: config=%RTmac saved=%RTmac\n",
|
---|
1331 | pThis->szInst, &pThis->macConfigured, &macConfigured));
|
---|
1332 | memcpy(pThis->virtioNetConfig.uMacAddress.au8, macConfigured.au8, sizeof(macConfigured.au8));
|
---|
1333 |
|
---|
1334 | #if FEATURE_OFFERED(STATUS)
|
---|
1335 | uint16_t fChkStatus;
|
---|
1336 | pHlp->pfnSSMGetU16( pSSM, &fChkStatus);
|
---|
1337 | if (fChkStatus == 0xffff)
|
---|
1338 | {
|
---|
1339 | /* Dummy value in saved state because status feature wasn't enabled at the time */
|
---|
1340 | pThis->virtioNetConfig.uStatus = 0; /* VIRTIO_NET_S_ANNOUNCE disabled */
|
---|
1341 | pThis->virtioNetConfig.uStatus = !!IS_LINK_UP(pThis); /* VIRTIO_NET_IS_LINK_UP (bit 0) */
|
---|
1342 | }
|
---|
1343 | else
|
---|
1344 | pThis->virtioNetConfig.uStatus = fChkStatus;
|
---|
1345 | #else
|
---|
1346 | uint16_t fDiscard;
|
---|
1347 | pHlp->pfnSSMGetU16( pSSM, &fDiscard);
|
---|
1348 | #endif
|
---|
1349 |
|
---|
1350 | #if FEATURE_OFFERED(MQ)
|
---|
1351 | uint16_t uCheckMaxVirtqPairs;
|
---|
1352 | pHlp->pfnSSMGetU16( pSSM, &uCheckMaxVirtqPairs);
|
---|
1353 | if (uCheckMaxVirtqPairs)
|
---|
1354 | pThis->virtioNetConfig.uMaxVirtqPairs = uCheckMaxVirtqPairs;
|
---|
1355 | else
|
---|
1356 | pThis->virtioNetConfig.uMaxVirtqPairs = VIRTIONET_CTRL_MQ_VQ_PAIRS;
|
---|
1357 | #else
|
---|
1358 | uint16_t fDiscard;
|
---|
1359 | pHlp->pfnSSMGetU16( pSSM, &fDiscard);
|
---|
1360 | #endif
|
---|
1361 |
|
---|
1362 | /* Save device-specific part */
|
---|
1363 | pHlp->pfnSSMGetBool( pSSM, &pThis->fCableConnected);
|
---|
1364 | pHlp->pfnSSMGetU8( pSSM, &pThis->fPromiscuous);
|
---|
1365 | pHlp->pfnSSMGetU8( pSSM, &pThis->fAllMulticast);
|
---|
1366 | pHlp->pfnSSMGetU8( pSSM, &pThis->fAllUnicast);
|
---|
1367 | pHlp->pfnSSMGetU8( pSSM, &pThis->fNoMulticast);
|
---|
1368 | pHlp->pfnSSMGetU8( pSSM, &pThis->fNoUnicast);
|
---|
1369 | pHlp->pfnSSMGetU8( pSSM, &pThis->fNoBroadcast);
|
---|
1370 |
|
---|
1371 | pHlp->pfnSSMGetU32( pSSM, &pThis->cMulticastFilterMacs);
|
---|
1372 | AssertReturn(pThis->cMulticastFilterMacs <= VIRTIONET_MAC_FILTER_LEN, VERR_OUT_OF_RANGE);
|
---|
1373 | pHlp->pfnSSMGetMem( pSSM, pThis->aMacMulticastFilter, pThis->cMulticastFilterMacs * sizeof(RTMAC));
|
---|
1374 |
|
---|
1375 | if (pThis->cMulticastFilterMacs < VIRTIONET_MAC_FILTER_LEN)
|
---|
1376 | memset(&pThis->aMacMulticastFilter[pThis->cMulticastFilterMacs], 0,
|
---|
1377 | (VIRTIONET_MAC_FILTER_LEN - pThis->cMulticastFilterMacs) * sizeof(RTMAC));
|
---|
1378 |
|
---|
1379 | pHlp->pfnSSMGetU32( pSSM, &pThis->cUnicastFilterMacs);
|
---|
1380 | AssertReturn(pThis->cUnicastFilterMacs <= VIRTIONET_MAC_FILTER_LEN, VERR_OUT_OF_RANGE);
|
---|
1381 | pHlp->pfnSSMGetMem( pSSM, pThis->aMacUnicastFilter, pThis->cUnicastFilterMacs * sizeof(RTMAC));
|
---|
1382 |
|
---|
1383 | if (pThis->cUnicastFilterMacs < VIRTIONET_MAC_FILTER_LEN)
|
---|
1384 | memset(&pThis->aMacUnicastFilter[pThis->cUnicastFilterMacs], 0,
|
---|
1385 | (VIRTIONET_MAC_FILTER_LEN - pThis->cUnicastFilterMacs) * sizeof(RTMAC));
|
---|
1386 |
|
---|
1387 | rc = pHlp->pfnSSMGetMem(pSSM, pThis->aVlanFilter, sizeof(pThis->aVlanFilter));
|
---|
1388 | AssertRCReturn(rc, rc);
|
---|
1389 | /*
|
---|
1390 | * Call the virtio core to let it load its state.
|
---|
1391 | */
|
---|
1392 | rc = virtioCoreR3ModernDeviceLoadExec(&pThis->Virtio, pDevIns->pHlpR3, pSSM, uVersion,
|
---|
1393 | VIRTIONET_SAVEDSTATE_VERSION, pThis->cVirtqs);
|
---|
1394 | AssertRCReturn(rc, rc);
|
---|
1395 | /*
|
---|
1396 | * Since the control queue is created proactively in the constructor to accomodate worst-case
|
---|
1397 | * legacy guests, even though the queue may have been deducted from queue count while saving state,
|
---|
1398 | * we must explicitly remove queue and associated worker thread and context at this point,
|
---|
1399 | * or presence of bogus control queue will confuse operations.
|
---|
1400 | */
|
---|
1401 | PVIRTIONETVIRTQ pVirtq = &pThis->aVirtqs[CTRLQIDX];
|
---|
1402 | if (FEATURE_DISABLED(CTRL_VQ) || !virtioCoreIsVirtqEnabled(&pThis->Virtio, CTRLQIDX))
|
---|
1403 | {
|
---|
1404 | virtioCoreR3VirtqDetach(&pThis->Virtio, CTRLQIDX);
|
---|
1405 | virtioNetR3VirtqDestroy(&pThis->Virtio, pVirtq);
|
---|
1406 | pVirtq->fAttachedToVirtioCore = false;
|
---|
1407 | --pThis->cWorkers;
|
---|
1408 | }
|
---|
1409 | /*
|
---|
1410 | * Nudge queue workers
|
---|
1411 | */
|
---|
1412 | for (int uVirtqNbr = 0; uVirtqNbr < pThis->cVirtqs; uVirtqNbr++)
|
---|
1413 | {
|
---|
1414 | pVirtq = &pThis->aVirtqs[uVirtqNbr];
|
---|
1415 | if (pVirtq->fAttachedToVirtioCore)
|
---|
1416 | {
|
---|
1417 | if (pVirtq->fHasWorker)
|
---|
1418 | {
|
---|
1419 | PVIRTIONETWORKER pWorker = &pThis->aWorkers[uVirtqNbr];
|
---|
1420 | Log7Func(("[%s] Waking %s worker.\n", pThis->szInst, pVirtq->szName));
|
---|
1421 | rc = PDMDevHlpSUPSemEventSignal(pDevIns, pWorker->hEvtProcess);
|
---|
1422 | AssertRCReturn(rc, rc);
|
---|
1423 | }
|
---|
1424 | }
|
---|
1425 | }
|
---|
1426 | pThis->virtioNetConfig.uStatus = pThis->Virtio.fDeviceStatus; /* reflects state to guest driver */
|
---|
1427 | pThis->fVirtioReady = pThis->Virtio.fDeviceStatus & VIRTIO_STATUS_DRIVER_OK;
|
---|
1428 | virtioNetConfigurePktHdr(pThis, pThis->Virtio.fLegacyDriver);
|
---|
1429 | return rc;
|
---|
1430 | }
|
---|
1431 |
|
---|
1432 | /**
|
---|
1433 | * @callback_method_impl{FNSSMDEVLOADDONE, Link status adjustments after
|
---|
1434 | * loading.}
|
---|
1435 | */
|
---|
1436 | static DECLCALLBACK(int) virtioNetR3ModernLoadDone(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
|
---|
1437 | {
|
---|
1438 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
1439 | PVIRTIONETCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVIRTIONETCC);
|
---|
1440 | RT_NOREF(pSSM);
|
---|
1441 |
|
---|
1442 | if (pThisCC->pDrv)
|
---|
1443 | pThisCC->pDrv->pfnSetPromiscuousMode(pThisCC->pDrv, (pThis->fPromiscuous | pThis->fAllMulticast));
|
---|
1444 |
|
---|
1445 | /*
|
---|
1446 | * Indicate link down to the guest OS that all network connections have
|
---|
1447 | * been lost, unless we've been teleported here.
|
---|
1448 | */
|
---|
1449 | if (!PDMDevHlpVMTeleportedAndNotFullyResumedYet(pDevIns))
|
---|
1450 | virtioNetR3TempLinkDown(pDevIns, pThis, pThisCC);
|
---|
1451 |
|
---|
1452 | return VINF_SUCCESS;
|
---|
1453 | }
|
---|
1454 |
|
---|
1455 | /**
|
---|
1456 | * @callback_method_impl{FNSSMDEVSAVEEXEC}
|
---|
1457 | */
|
---|
1458 | static DECLCALLBACK(int) virtioNetR3ModernSaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
|
---|
1459 | {
|
---|
1460 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
1461 | PVIRTIONETCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVIRTIONETCC);
|
---|
1462 | PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
|
---|
1463 |
|
---|
1464 | RT_NOREF(pThisCC);
|
---|
1465 | Log7Func(("[%s] SAVE EXEC!!\n", pThis->szInst));
|
---|
1466 |
|
---|
1467 | /* Store a dummy MAC address that would never be actually assigned to a NIC
|
---|
1468 | * so that when load exec handler is called it can be easily determined
|
---|
1469 | * whether saved state is modern or legacy. This works because original
|
---|
1470 | * legacy code stored assigned NIC address as the first item of SSM state
|
---|
1471 | */
|
---|
1472 | RTMAC uVersionMarkerMac = { VIRTIONET_VERSION_MARKER_MAC_ADDR };
|
---|
1473 | pHlp->pfnSSMPutMem(pSSM, &uVersionMarkerMac.au8, sizeof(uVersionMarkerMac.au8));
|
---|
1474 |
|
---|
1475 | pHlp->pfnSSMPutU64( pSSM, pThis->fNegotiatedFeatures);
|
---|
1476 |
|
---|
1477 | pHlp->pfnSSMPutU16( pSSM, pThis->cVirtqs);
|
---|
1478 | pHlp->pfnSSMPutU16( pSSM, pThis->cWorkers);
|
---|
1479 |
|
---|
1480 | for (int uVirtqNbr = 0; uVirtqNbr < pThis->cVirtqs; uVirtqNbr++)
|
---|
1481 | pHlp->pfnSSMPutBool(pSSM, pThis->aVirtqs[uVirtqNbr].fAttachedToVirtioCore);
|
---|
1482 | /*
|
---|
1483 |
|
---|
1484 | * Save device config area (accessed via MMIO)
|
---|
1485 | */
|
---|
1486 | pHlp->pfnSSMPutMem( pSSM, pThis->virtioNetConfig.uMacAddress.au8,
|
---|
1487 | sizeof(pThis->virtioNetConfig.uMacAddress.au8));
|
---|
1488 | #if FEATURE_OFFERED(STATUS)
|
---|
1489 | pHlp->pfnSSMPutU16( pSSM, pThis->virtioNetConfig.uStatus);
|
---|
1490 | #else
|
---|
1491 | /*
|
---|
1492 | * Relevant values are lower bits. Forcing this to 0xffff let's loadExec know this
|
---|
1493 | * feature was not enabled in saved state. VirtIO 1.0, 5.1.4
|
---|
1494 | */
|
---|
1495 | pHlp->pfnSSMPutU16( pSSM, 0xffff);
|
---|
1496 |
|
---|
1497 | #endif
|
---|
1498 | #if FEATURE_OFFERED(MQ)
|
---|
1499 | pHlp->pfnSSMPutU16( pSSM, pThis->virtioNetConfig.uMaxVirtqPairs);
|
---|
1500 | #else
|
---|
1501 | /*
|
---|
1502 | * Legal values for max_virtqueue_pairs are 0x1 -> 0x8000 *. Forcing zero let's loadExec know this
|
---|
1503 | * feature was not enabled in saved state. VirtIO 1.0, 5.1.4.1
|
---|
1504 | */
|
---|
1505 | pHlp->pfnSSMPutU16( pSSM, 0);
|
---|
1506 | #endif
|
---|
1507 |
|
---|
1508 | /* Save device-specific part */
|
---|
1509 | pHlp->pfnSSMPutBool( pSSM, pThis->fCableConnected);
|
---|
1510 | pHlp->pfnSSMPutU8( pSSM, pThis->fPromiscuous);
|
---|
1511 | pHlp->pfnSSMPutU8( pSSM, pThis->fAllMulticast);
|
---|
1512 | pHlp->pfnSSMPutU8( pSSM, pThis->fAllUnicast);
|
---|
1513 | pHlp->pfnSSMPutU8( pSSM, pThis->fNoMulticast);
|
---|
1514 | pHlp->pfnSSMPutU8( pSSM, pThis->fNoUnicast);
|
---|
1515 | pHlp->pfnSSMPutU8( pSSM, pThis->fNoBroadcast);
|
---|
1516 |
|
---|
1517 | pHlp->pfnSSMPutU32( pSSM, pThis->cMulticastFilterMacs);
|
---|
1518 | pHlp->pfnSSMPutMem( pSSM, pThis->aMacMulticastFilter, pThis->cMulticastFilterMacs * sizeof(RTMAC));
|
---|
1519 |
|
---|
1520 | pHlp->pfnSSMPutU32( pSSM, pThis->cUnicastFilterMacs);
|
---|
1521 | pHlp->pfnSSMPutMem( pSSM, pThis->aMacUnicastFilter, pThis->cUnicastFilterMacs * sizeof(RTMAC));
|
---|
1522 |
|
---|
1523 | int rc = pHlp->pfnSSMPutMem(pSSM, pThis->aVlanFilter, sizeof(pThis->aVlanFilter));
|
---|
1524 | AssertRCReturn(rc, rc);
|
---|
1525 |
|
---|
1526 | /*
|
---|
1527 | * Call the virtio core to let it save its state.
|
---|
1528 | */
|
---|
1529 | return virtioCoreR3SaveExec(&pThis->Virtio, pDevIns->pHlpR3, pSSM, VIRTIONET_SAVEDSTATE_VERSION, pThis->cVirtqs);
|
---|
1530 | }
|
---|
1531 |
|
---|
1532 |
|
---|
1533 | /*********************************************************************************************************************************
|
---|
1534 | * Device interface. *
|
---|
1535 | *********************************************************************************************************************************/
|
---|
1536 |
|
---|
1537 | #ifdef IN_RING3
|
---|
1538 |
|
---|
1539 | /**
|
---|
1540 | * Perform 16-bit 1's compliment checksum on provided packet in accordance with VirtIO specification,
|
---|
1541 | * pertinent to VIRTIO_NET_F_CSUM feature, which 'offloads' the Checksum feature from the driver
|
---|
1542 | * to save processor cycles, which is ironic in our case, where the controller device ('network card')
|
---|
1543 | * is emulated on the virtualization host.
|
---|
1544 | *
|
---|
1545 | * @note See VirtIO 1.0 spec, 5.1.6.2 Packet Transmission
|
---|
1546 | *
|
---|
1547 | * @param pBuf Pointer to r/w buffer with any portion to calculate checksum for
|
---|
1548 | * @param cbSize Number of bytes to checksum
|
---|
1549 | * @param uStart Where to start the checksum within the buffer
|
---|
1550 | * @param uOffset Offset past uStart point in the buffer to store checksum result
|
---|
1551 | *
|
---|
1552 | */
|
---|
1553 | DECLINLINE(void) virtioNetR3Calc16BitChecksum(uint8_t *pBuf, size_t cb, uint16_t uStart, uint16_t uOffset)
|
---|
1554 | {
|
---|
1555 | AssertReturnVoid(uStart < cb);
|
---|
1556 | AssertReturnVoid(uStart + uOffset + sizeof(uint16_t) <= cb);
|
---|
1557 |
|
---|
1558 | uint32_t chksum = 0;
|
---|
1559 | uint16_t *pu = (uint16_t *)(pBuf + uStart);
|
---|
1560 |
|
---|
1561 | cb -= uStart;
|
---|
1562 | while (cb > 1)
|
---|
1563 | {
|
---|
1564 | chksum += *pu++;
|
---|
1565 | cb -= 2;
|
---|
1566 | }
|
---|
1567 | if (cb)
|
---|
1568 | chksum += *(uint8_t *)pu;
|
---|
1569 | while (chksum >> 16)
|
---|
1570 | chksum = (chksum >> 16) + (chksum & 0xFFFF);
|
---|
1571 |
|
---|
1572 | /* Store 1's compliment of calculated sum */
|
---|
1573 | *(uint16_t *)(pBuf + uStart + uOffset) = ~chksum;
|
---|
1574 | }
|
---|
1575 |
|
---|
1576 | /**
|
---|
1577 | * Turns on/off the read status LED.
|
---|
1578 | *
|
---|
1579 | * @returns VBox status code.
|
---|
1580 | * @param pThis Pointer to the device state structure.
|
---|
1581 | * @param fOn New LED state.
|
---|
1582 | */
|
---|
1583 | static void virtioNetR3SetReadLed(PVIRTIONETR3 pThisR3, bool fOn)
|
---|
1584 | {
|
---|
1585 | if (fOn)
|
---|
1586 | pThisR3->led.Asserted.s.fReading = pThisR3->led.Actual.s.fReading = 1;
|
---|
1587 | else
|
---|
1588 | pThisR3->led.Actual.s.fReading = fOn;
|
---|
1589 | }
|
---|
1590 |
|
---|
1591 | /**
|
---|
1592 | * Turns on/off the write status LED.
|
---|
1593 | *
|
---|
1594 | * @returns VBox status code.
|
---|
1595 | * @param pThis Pointer to the device state structure.
|
---|
1596 | * @param fOn New LED state.
|
---|
1597 | */
|
---|
1598 | static void virtioNetR3SetWriteLed(PVIRTIONETR3 pThisR3, bool fOn)
|
---|
1599 | {
|
---|
1600 | if (fOn)
|
---|
1601 | pThisR3->led.Asserted.s.fWriting = pThisR3->led.Actual.s.fWriting = 1;
|
---|
1602 | else
|
---|
1603 | pThisR3->led.Actual.s.fWriting = fOn;
|
---|
1604 | }
|
---|
1605 |
|
---|
1606 | /**
|
---|
1607 | * Check that the core is setup and ready and co-configured with guest virtio driver,
|
---|
1608 | * and verifies that the VM is running.
|
---|
1609 | *
|
---|
1610 | * @returns true if VirtIO core and device are in a running and operational state
|
---|
1611 | */
|
---|
1612 | DECLINLINE(bool) virtioNetIsOperational(PVIRTIONET pThis, PPDMDEVINS pDevIns)
|
---|
1613 | {
|
---|
1614 | if (RT_LIKELY(pThis->fVirtioReady))
|
---|
1615 | {
|
---|
1616 | VMSTATE enmVMState = PDMDevHlpVMState(pDevIns);
|
---|
1617 | if (RT_LIKELY(enmVMState == VMSTATE_RUNNING || enmVMState == VMSTATE_RUNNING_LS))
|
---|
1618 | return true;
|
---|
1619 | }
|
---|
1620 | return false;
|
---|
1621 | }
|
---|
1622 |
|
---|
1623 | /**
|
---|
1624 | * Check whether specific queue is ready and has Rx buffers (virtqueue descriptors)
|
---|
1625 | * available. This must be called before the pfnRecieve() method is called.
|
---|
1626 | *
|
---|
1627 | * @remarks As a side effect this function enables queue notification
|
---|
1628 | * if it cannot receive because the queue is empty.
|
---|
1629 | * It disables notification if it can receive.
|
---|
1630 | *
|
---|
1631 | * @returns VERR_NET_NO_BUFFER_SPACE if it cannot.
|
---|
1632 | * @thread RX
|
---|
1633 | */
|
---|
1634 | static int virtioNetR3CheckRxBufsAvail(PPDMDEVINS pDevIns, PVIRTIONET pThis, PVIRTIONETVIRTQ pRxVirtq)
|
---|
1635 | {
|
---|
1636 | int rc = VERR_INVALID_STATE;
|
---|
1637 | Log8Func(("[%s] ", pThis->szInst));
|
---|
1638 | if (!virtioNetIsOperational(pThis, pDevIns))
|
---|
1639 | Log8(("No Rx bufs available. (VirtIO core not ready)\n"));
|
---|
1640 |
|
---|
1641 | else if (!virtioCoreIsVirtqEnabled(&pThis->Virtio, pRxVirtq->uIdx))
|
---|
1642 | Log8(("[No Rx bufs available. (%s not enabled)\n", pRxVirtq->szName));
|
---|
1643 |
|
---|
1644 | else if (IS_VIRTQ_EMPTY(pDevIns, &pThis->Virtio, pRxVirtq->uIdx))
|
---|
1645 | Log8(("No Rx bufs available. (%s empty)\n", pRxVirtq->szName));
|
---|
1646 |
|
---|
1647 | else
|
---|
1648 | {
|
---|
1649 | Log8(("%s has %d empty guest bufs in avail ring\n", pRxVirtq->szName,
|
---|
1650 | virtioCoreVirtqAvailBufCount(pDevIns, &pThis->Virtio, pRxVirtq->uIdx)));
|
---|
1651 | rc = VINF_SUCCESS;
|
---|
1652 | }
|
---|
1653 | virtioCoreVirtqEnableNotify(&pThis->Virtio, pRxVirtq->uIdx, rc == VERR_INVALID_STATE /* fEnable */);
|
---|
1654 | return rc;
|
---|
1655 | }
|
---|
1656 |
|
---|
1657 | /**
|
---|
1658 | * Find an Rx queue that has Rx packets in it, if *any* do.
|
---|
1659 | *
|
---|
1660 | * @todo When multiqueue (MQ) mode is fully supported and tested, some kind of round-robin
|
---|
1661 | * or randomization scheme should probably be incorporated here.
|
---|
1662 | *
|
---|
1663 | * @returns true if Rx pkts avail on queue and sets pRxVirtq to point to queue w/pkts found
|
---|
1664 | * @thread RX
|
---|
1665 | *
|
---|
1666 | */
|
---|
1667 | static bool virtioNetR3AreRxBufsAvail(PPDMDEVINS pDevIns, PVIRTIONET pThis, PVIRTIONETVIRTQ *pRxVirtq)
|
---|
1668 | {
|
---|
1669 | for (int uVirtqPair = 0; uVirtqPair < pThis->cVirtqPairs; uVirtqPair++)
|
---|
1670 | {
|
---|
1671 | PVIRTIONETVIRTQ pThisRxVirtq = &pThis->aVirtqs[RXQIDX(uVirtqPair)];
|
---|
1672 | if (RT_SUCCESS(virtioNetR3CheckRxBufsAvail(pDevIns, pThis, pThisRxVirtq)))
|
---|
1673 | {
|
---|
1674 | if (pRxVirtq)
|
---|
1675 | *pRxVirtq = pThisRxVirtq;
|
---|
1676 | return true;
|
---|
1677 | }
|
---|
1678 | }
|
---|
1679 | return false;
|
---|
1680 | }
|
---|
1681 |
|
---|
1682 | /**
|
---|
1683 | * @interface_method_impl{PDMINETWORKDOWN,pfnWaitReceiveAvail}
|
---|
1684 | */
|
---|
1685 | static DECLCALLBACK(int) virtioNetR3NetworkDown_WaitReceiveAvail(PPDMINETWORKDOWN pInterface, RTMSINTERVAL timeoutMs)
|
---|
1686 | {
|
---|
1687 | PVIRTIONETCC pThisCC = RT_FROM_MEMBER(pInterface, VIRTIONETCC, INetworkDown);
|
---|
1688 | PPDMDEVINS pDevIns = pThisCC->pDevIns;
|
---|
1689 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
1690 |
|
---|
1691 | if (!virtioNetIsOperational(pThis, pDevIns))
|
---|
1692 | return VERR_INTERRUPTED;
|
---|
1693 |
|
---|
1694 | if (virtioNetR3AreRxBufsAvail(pDevIns, pThis, NULL /* pRxVirtq */))
|
---|
1695 | {
|
---|
1696 | Log10Func(("[%s] Rx bufs available, releasing waiter...\n", pThis->szInst));
|
---|
1697 | return VINF_SUCCESS;
|
---|
1698 | }
|
---|
1699 | if (!timeoutMs)
|
---|
1700 | return VERR_NET_NO_BUFFER_SPACE;
|
---|
1701 |
|
---|
1702 | LogFunc(("[%s] %s\n", pThis->szInst, timeoutMs == RT_INDEFINITE_WAIT ? "<indefinite wait>" : ""));
|
---|
1703 |
|
---|
1704 | ASMAtomicXchgBool(&pThis->fLeafWantsEmptyRxBufs, true);
|
---|
1705 | STAM_PROFILE_START(&pThis->StatRxOverflow, a);
|
---|
1706 |
|
---|
1707 | do {
|
---|
1708 | if (virtioNetR3AreRxBufsAvail(pDevIns, pThis, NULL /* pRxVirtq */))
|
---|
1709 | {
|
---|
1710 | Log10Func(("[%s] Rx bufs now available, releasing waiter...\n", pThis->szInst));
|
---|
1711 | ASMAtomicXchgBool(&pThis->fLeafWantsEmptyRxBufs, false);
|
---|
1712 | return VINF_SUCCESS;
|
---|
1713 | }
|
---|
1714 | Log9Func(("[%s] Starved for empty guest Rx bufs. Waiting...\n", pThis->szInst));
|
---|
1715 |
|
---|
1716 | int rc = PDMDevHlpSUPSemEventWaitNoResume(pDevIns, pThis->hEventRxDescAvail, timeoutMs);
|
---|
1717 |
|
---|
1718 | if (rc == VERR_TIMEOUT || rc == VERR_INTERRUPTED)
|
---|
1719 | {
|
---|
1720 | LogFunc(("Woken due to %s\n", rc == VERR_TIMEOUT ? "timeout" : "getting interrupted"));
|
---|
1721 |
|
---|
1722 | if (!virtioNetIsOperational(pThis, pDevIns))
|
---|
1723 | break;
|
---|
1724 |
|
---|
1725 | continue;
|
---|
1726 | }
|
---|
1727 | if (RT_FAILURE(rc)) {
|
---|
1728 | LogFunc(("Waken due to failure %Rrc\n", rc));
|
---|
1729 | RTThreadSleep(1);
|
---|
1730 | }
|
---|
1731 | } while (virtioNetIsOperational(pThis, pDevIns));
|
---|
1732 |
|
---|
1733 | STAM_PROFILE_STOP(&pThis->StatRxOverflow, a);
|
---|
1734 | ASMAtomicXchgBool(&pThis->fLeafWantsEmptyRxBufs, false);
|
---|
1735 |
|
---|
1736 | Log7Func(("[%s] Wait for Rx buffers available was interrupted\n", pThis->szInst));
|
---|
1737 | return VERR_INTERRUPTED;
|
---|
1738 | }
|
---|
1739 |
|
---|
1740 | /**
|
---|
1741 | * Sets up the GSO context according to the Virtio header.
|
---|
1742 | *
|
---|
1743 | * @param pGso The GSO context to setup.
|
---|
1744 | * @param pCtx The context descriptor.
|
---|
1745 | */
|
---|
1746 | DECLINLINE(PPDMNETWORKGSO) virtioNetR3SetupGsoCtx(PPDMNETWORKGSO pGso, VIRTIONETPKTHDR const *pPktHdr)
|
---|
1747 | {
|
---|
1748 | pGso->u8Type = PDMNETWORKGSOTYPE_INVALID;
|
---|
1749 |
|
---|
1750 | if (pPktHdr->uGsoType & VIRTIONET_HDR_GSO_ECN)
|
---|
1751 | {
|
---|
1752 | AssertMsgFailed(("Unsupported flag in virtio header: ECN\n"));
|
---|
1753 | return NULL;
|
---|
1754 | }
|
---|
1755 | switch (pPktHdr->uGsoType & ~VIRTIONET_HDR_GSO_ECN)
|
---|
1756 | {
|
---|
1757 | case VIRTIONET_HDR_GSO_TCPV4:
|
---|
1758 | pGso->u8Type = PDMNETWORKGSOTYPE_IPV4_TCP;
|
---|
1759 | pGso->cbHdrsSeg = pPktHdr->uHdrLen;
|
---|
1760 | break;
|
---|
1761 | case VIRTIONET_HDR_GSO_TCPV6:
|
---|
1762 | pGso->u8Type = PDMNETWORKGSOTYPE_IPV6_TCP;
|
---|
1763 | pGso->cbHdrsSeg = pPktHdr->uHdrLen;
|
---|
1764 | break;
|
---|
1765 | case VIRTIONET_HDR_GSO_UDP:
|
---|
1766 | pGso->u8Type = PDMNETWORKGSOTYPE_IPV4_UDP;
|
---|
1767 | pGso->cbHdrsSeg = pPktHdr->uChksumStart;
|
---|
1768 | break;
|
---|
1769 | default:
|
---|
1770 | return NULL;
|
---|
1771 | }
|
---|
1772 | if (pPktHdr->uFlags & VIRTIONET_HDR_F_NEEDS_CSUM)
|
---|
1773 | pGso->offHdr2 = pPktHdr->uChksumStart;
|
---|
1774 | else
|
---|
1775 | {
|
---|
1776 | AssertMsgFailed(("GSO without checksum offloading!\n"));
|
---|
1777 | return NULL;
|
---|
1778 | }
|
---|
1779 | pGso->offHdr1 = sizeof(RTNETETHERHDR);
|
---|
1780 | pGso->cbHdrsTotal = pPktHdr->uHdrLen;
|
---|
1781 | pGso->cbMaxSeg = pPktHdr->uGsoSize;
|
---|
1782 | /* Mark GSO frames with zero MSS as PDMNETWORKGSOTYPE_INVALID, so they will be ignored by send. */
|
---|
1783 | if (pPktHdr->uGsoType != VIRTIONET_HDR_GSO_NONE && pPktHdr->uGsoSize == 0)
|
---|
1784 | pGso->u8Type = PDMNETWORKGSOTYPE_INVALID;
|
---|
1785 | return pGso;
|
---|
1786 | }
|
---|
1787 |
|
---|
1788 | /**
|
---|
1789 | * @interface_method_impl{PDMINETWORKCONFIG,pfnGetMac}
|
---|
1790 | */
|
---|
1791 | static DECLCALLBACK(int) virtioNetR3NetworkConfig_GetMac(PPDMINETWORKCONFIG pInterface, PRTMAC pMac)
|
---|
1792 | {
|
---|
1793 | PVIRTIONETCC pThisCC = RT_FROM_MEMBER(pInterface, VIRTIONETCC, INetworkConfig);
|
---|
1794 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pThisCC->pDevIns, PVIRTIONET);
|
---|
1795 | memcpy(pMac, pThis->virtioNetConfig.uMacAddress.au8, sizeof(RTMAC));
|
---|
1796 | return VINF_SUCCESS;
|
---|
1797 | }
|
---|
1798 |
|
---|
1799 | /**
|
---|
1800 | * Returns true if it is a broadcast packet.
|
---|
1801 | *
|
---|
1802 | * @returns true if destination address indicates broadcast.
|
---|
1803 | * @param pvBuf The ethernet packet.
|
---|
1804 | */
|
---|
1805 | DECLINLINE(bool) virtioNetR3IsBroadcast(const void *pvBuf)
|
---|
1806 | {
|
---|
1807 | static const uint8_t s_abBcastAddr[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
|
---|
1808 | return memcmp(pvBuf, s_abBcastAddr, sizeof(s_abBcastAddr)) == 0;
|
---|
1809 | }
|
---|
1810 |
|
---|
1811 | /**
|
---|
1812 | * Returns true if it is a multicast packet.
|
---|
1813 | *
|
---|
1814 | * @remarks returns true for broadcast packets as well.
|
---|
1815 | * @returns true if destination address indicates multicast.
|
---|
1816 | * @param pvBuf The ethernet packet.
|
---|
1817 | */
|
---|
1818 | DECLINLINE(bool) virtioNetR3IsMulticast(const void *pvBuf)
|
---|
1819 | {
|
---|
1820 | return (*(char*)pvBuf) & 1;
|
---|
1821 | }
|
---|
1822 |
|
---|
1823 | /**
|
---|
1824 | * Determines if the packet is to be delivered to upper layer.
|
---|
1825 | *
|
---|
1826 | * @returns true if packet is intended for this node.
|
---|
1827 | * @param pThis Pointer to the state structure.
|
---|
1828 | * @param pvBuf The ethernet packet.
|
---|
1829 | * @param cb Number of bytes available in the packet.
|
---|
1830 | */
|
---|
1831 | static bool virtioNetR3AddressFilter(PVIRTIONET pThis, const void *pvBuf, size_t cb)
|
---|
1832 | {
|
---|
1833 |
|
---|
1834 | RT_NOREF(cb);
|
---|
1835 |
|
---|
1836 | #ifdef LOG_ENABLED
|
---|
1837 | if (LogIs11Enabled())
|
---|
1838 | {
|
---|
1839 | char *pszType;
|
---|
1840 | if (virtioNetR3IsMulticast(pvBuf))
|
---|
1841 | pszType = (char *)"mcast";
|
---|
1842 | else if (virtioNetR3IsBroadcast(pvBuf))
|
---|
1843 | pszType = (char *)"bcast";
|
---|
1844 | else
|
---|
1845 | pszType = (char *)"ucast";
|
---|
1846 |
|
---|
1847 | LogFunc(("node(%RTmac%s%s), pkt(%RTmac, %s) ",
|
---|
1848 | pThis->virtioNetConfig.uMacAddress.au8,
|
---|
1849 | pThis->fPromiscuous ? " promisc" : "",
|
---|
1850 | pThis->fAllMulticast ? " all-mcast" : "",
|
---|
1851 | pvBuf, pszType));
|
---|
1852 | }
|
---|
1853 | #endif
|
---|
1854 |
|
---|
1855 | if (pThis->fPromiscuous) {
|
---|
1856 | Log11(("\n"));
|
---|
1857 | return true;
|
---|
1858 | }
|
---|
1859 |
|
---|
1860 | /* Ignore everything outside of our VLANs */
|
---|
1861 | uint16_t *uPtr = (uint16_t *)pvBuf;
|
---|
1862 |
|
---|
1863 | /* Compare TPID with VLAN Ether Type */
|
---|
1864 | if ( uPtr[6] == RT_H2BE_U16(0x8100)
|
---|
1865 | && !ASMBitTest(pThis->aVlanFilter, RT_BE2H_U16(uPtr[7]) & 0xFFF))
|
---|
1866 | {
|
---|
1867 | Log11Func(("\n[%s] not our VLAN, returning false\n", pThis->szInst));
|
---|
1868 | return false;
|
---|
1869 | }
|
---|
1870 |
|
---|
1871 | if (virtioNetR3IsBroadcast(pvBuf))
|
---|
1872 | {
|
---|
1873 | Log11(("acpt (bcast)\n"));
|
---|
1874 | #ifdef LOG_ENABLED
|
---|
1875 | if (LogIs12Enabled())
|
---|
1876 | virtioNetR3PacketDump(pThis, (const uint8_t *)pvBuf, cb, "<-- Incoming");
|
---|
1877 | #endif
|
---|
1878 | return true;
|
---|
1879 | }
|
---|
1880 | if (pThis->fAllMulticast && virtioNetR3IsMulticast(pvBuf))
|
---|
1881 | {
|
---|
1882 | Log11(("acpt (all-mcast)\n"));
|
---|
1883 | #ifdef LOG_ENABLED
|
---|
1884 | if (LogIs12Enabled())
|
---|
1885 | virtioNetR3PacketDump(pThis, (const uint8_t *)pvBuf, cb, "<-- Incoming");
|
---|
1886 | #endif
|
---|
1887 | return true;
|
---|
1888 | }
|
---|
1889 |
|
---|
1890 | if (!memcmp(pThis->virtioNetConfig.uMacAddress.au8, pvBuf, sizeof(RTMAC)))
|
---|
1891 | {
|
---|
1892 | Log11(("acpt (to-node)\n"));
|
---|
1893 | #ifdef LOG_ENABLED
|
---|
1894 | if (LogIs12Enabled())
|
---|
1895 | virtioNetR3PacketDump(pThis, (const uint8_t *)pvBuf, cb, "<-- Incoming");
|
---|
1896 | #endif
|
---|
1897 | return true;
|
---|
1898 | }
|
---|
1899 |
|
---|
1900 | for (uint16_t i = 0; i < pThis->cMulticastFilterMacs; i++)
|
---|
1901 | {
|
---|
1902 | if (!memcmp(&pThis->aMacMulticastFilter[i], pvBuf, sizeof(RTMAC)))
|
---|
1903 | {
|
---|
1904 | Log11(("acpt (mcast whitelist)\n"));
|
---|
1905 | #ifdef LOG_ENABLED
|
---|
1906 | if (LogIs12Enabled())
|
---|
1907 | virtioNetR3PacketDump(pThis, (const uint8_t *)pvBuf, cb, "<-- Incoming");
|
---|
1908 | #endif
|
---|
1909 | return true;
|
---|
1910 | }
|
---|
1911 | }
|
---|
1912 |
|
---|
1913 | for (uint16_t i = 0; i < pThis->cUnicastFilterMacs; i++)
|
---|
1914 | if (!memcmp(&pThis->aMacUnicastFilter[i], pvBuf, sizeof(RTMAC)))
|
---|
1915 | {
|
---|
1916 | Log11(("acpt (ucast whitelist)\n"));
|
---|
1917 | return true;
|
---|
1918 | }
|
---|
1919 | #ifdef LOG_ENABLED
|
---|
1920 | if (LogIs11Enabled())
|
---|
1921 | Log(("... reject\n"));
|
---|
1922 | #endif
|
---|
1923 |
|
---|
1924 | return false;
|
---|
1925 | }
|
---|
1926 |
|
---|
1927 |
|
---|
1928 | /**
|
---|
1929 | * This handles the case where Rx packet must be transfered to guest driver via multiple buffers using
|
---|
1930 | * copy tactics slower than preferred method using a single virtq buf. Yet this is an available option
|
---|
1931 | * for guests. Although cited in the spec it's to accomodate guest that perhaps have memory constraints
|
---|
1932 | * wherein guest may benefit from smaller buffers (see MRG_RXBUF feature), in practice it is seen
|
---|
1933 | * that without MRG_RXBUF the linux guest enqueues 'huge' multi-segment buffers so that the largest
|
---|
1934 | * conceivable Rx packet can be contained in a single buffer, where for most transactions most of that
|
---|
1935 | * memory will be unfilled, so it is typically both wasteful and *slower* to avoid MRG_RXBUF.
|
---|
1936 | *
|
---|
1937 | * As an optimization, this multi-buffer copy is only used when:
|
---|
1938 | *
|
---|
1939 | * A. Guest has negotiated MRG_RXBUF
|
---|
1940 | * B. Next packet in the Rx avail queue isn't big enough to contain Rx pkt hdr+data.
|
---|
1941 | *
|
---|
1942 | * Architecture is defined in VirtIO 1.1 5.1.6 (Device Operations), which has improved
|
---|
1943 | * wording over the VirtIO 1.0 specification, but, as an implementation note, there is one
|
---|
1944 | * ambiguity that needs clarification:
|
---|
1945 | *
|
---|
1946 | * The VirtIO 1.1, 5.1.6.4 explains something in a potentially misleading way. And note,
|
---|
1947 | * the VirtIO spec makes a document-wide assertion that the distinction between
|
---|
1948 | * "SHOULD" and "MUST" is to be taken quite literally.
|
---|
1949 | *
|
---|
1950 | * The confusion is that VirtIO 1.1, 5.1.6.3.1 essentially says guest driver "SHOULD" populate
|
---|
1951 | * Rx queue with buffers large enough to accomodate full pkt hdr + data. That's a grammatical
|
---|
1952 | * error (dangling participle).
|
---|
1953 | *
|
---|
1954 | * In practice we MUST assume "SHOULD" strictly applies to the word *populate*, -not- to buffer
|
---|
1955 | * size, because ultimately buffer minimum size is predicated on configuration parameters,
|
---|
1956 | * specifically, when MRG_RXBUF feature is disabled, the driver *MUST* provide Rx bufs
|
---|
1957 | * (if and when it can provide them), that are *large enough* to hold pkt hdr + payload.
|
---|
1958 | *
|
---|
1959 | * Therefore, proper interpretation of 5.1.6.3.1 is, the guest *should* (ideally) keep Rx virtq
|
---|
1960 | * populated with appropriately sized buffers to *prevent starvation* (i.e. starvation may be
|
---|
1961 | * unavoidable thus can't be prohibited). As it would be a ludicrous to presume 5.1.6.3.1 is
|
---|
1962 | * giving guests leeway to violate MRG_RXBUF feature buf size constraints.
|
---|
1963 | *
|
---|
1964 | * @param pDevIns PDM instance
|
---|
1965 | * @param pThis Device instance
|
---|
1966 | * @param pvBuf Pointer to incoming GSO Rx data from downstream device
|
---|
1967 | * @param cb Amount of data given
|
---|
1968 | * @param rxPktHdr Rx pkt Header that's been massaged into VirtIO semantics
|
---|
1969 | * @param pRxVirtq Pointer to Rx virtq
|
---|
1970 | * @param pVirtqBuf Initial virtq buffer to start copying Rx hdr/pkt to guest into
|
---|
1971 | *
|
---|
1972 | */
|
---|
1973 | static int virtioNetR3RxPktMultibufXfer(PPDMDEVINS pDevIns, PVIRTIONET pThis, uint8_t *pvPktBuf, size_t cb,
|
---|
1974 | PVIRTIONETPKTHDR pRxPktHdr, PVIRTIONETVIRTQ pRxVirtq, PVIRTQBUF pVirtqBuf)
|
---|
1975 | {
|
---|
1976 |
|
---|
1977 | size_t cbBufRemaining = pVirtqBuf->cbPhysReturn;
|
---|
1978 | size_t cbPktHdr = pThis->cbPktHdr;
|
---|
1979 |
|
---|
1980 | AssertMsgReturn(cbBufRemaining >= pThis->cbPktHdr,
|
---|
1981 | ("guest-provided Rx buf not large enough to store pkt hdr"), VERR_INTERNAL_ERROR);
|
---|
1982 |
|
---|
1983 | Log7Func((" Sending packet header to guest...\n"));
|
---|
1984 |
|
---|
1985 | /* Copy packet header to rx buf provided by caller. */
|
---|
1986 | size_t cbHdrEnqueued = pVirtqBuf->cbPhysReturn == cbPktHdr ? cbPktHdr : 0;
|
---|
1987 | virtioCoreR3VirtqUsedBufPut(pDevIns, &pThis->Virtio, pRxVirtq->uIdx, cbPktHdr, pRxPktHdr, pVirtqBuf, cbHdrEnqueued);
|
---|
1988 |
|
---|
1989 | /* Cache address of uNumBuffers field of pkthdr to update ex post facto */
|
---|
1990 | RTGCPHYS GCPhysNumBuffers = pVirtqBuf->pSgPhysReturn->paSegs[0].GCPhys + RT_UOFFSETOF(VIRTIONETPKTHDR, uNumBuffers);
|
---|
1991 | uint16_t cVirtqBufsUsed = 0;
|
---|
1992 | cbBufRemaining -= cbPktHdr;
|
---|
1993 | /*
|
---|
1994 | * Copy packet to guest using as many buffers as necessary, tracking and handling whether
|
---|
1995 | * the buf containing the packet header was already written to the Rx queue's used buffer ring.
|
---|
1996 | */
|
---|
1997 | uint64_t uPktOffset = 0;
|
---|
1998 | while(uPktOffset < cb)
|
---|
1999 | {
|
---|
2000 | Log7Func((" Sending packet data (in buffer #%d) to guest...\n", cVirtqBufsUsed));
|
---|
2001 | size_t cbBounded = RT_MIN(cbBufRemaining, cb - uPktOffset);
|
---|
2002 | (void) virtioCoreR3VirtqUsedBufPut(pDevIns, &pThis->Virtio, pRxVirtq->uIdx, cbBounded,
|
---|
2003 | pvPktBuf + uPktOffset, pVirtqBuf, cbBounded + (cbPktHdr - cbHdrEnqueued) /* cbEnqueue */);
|
---|
2004 | ++cVirtqBufsUsed;
|
---|
2005 | cbBufRemaining -= cbBounded;
|
---|
2006 | uPktOffset += cbBounded;
|
---|
2007 | if (uPktOffset < cb)
|
---|
2008 | {
|
---|
2009 | cbHdrEnqueued = cbPktHdr;
|
---|
2010 | int rc = virtioCoreR3VirtqAvailBufGet(pDevIns, &pThis->Virtio, pRxVirtq->uIdx, pVirtqBuf, true);
|
---|
2011 | AssertMsgReturn(rc == VINF_SUCCESS || rc == VERR_NOT_AVAILABLE, ("%Rrc\n", rc), rc);
|
---|
2012 | AssertMsgReturn(rc == VINF_SUCCESS && pVirtqBuf->cbPhysReturn,
|
---|
2013 | ("Not enough Rx buffers in queue to accomodate ethernet packet\n"),
|
---|
2014 | VERR_INTERNAL_ERROR);
|
---|
2015 | cbBufRemaining = pVirtqBuf->cbPhysReturn;
|
---|
2016 | }
|
---|
2017 | }
|
---|
2018 |
|
---|
2019 | /* Fix-up pkthdr (in guest phys. memory) with number of buffers (descriptors) that were processed */
|
---|
2020 | int rc = virtioCoreGCPhysWrite(&pThis->Virtio, pDevIns, GCPhysNumBuffers, &cVirtqBufsUsed, sizeof(cVirtqBufsUsed));
|
---|
2021 | AssertMsgRCReturn(rc, ("Failure updating descriptor count in pkt hdr in guest physical memory\n"), rc);
|
---|
2022 |
|
---|
2023 | virtioCoreVirtqUsedRingSync(pDevIns, &pThis->Virtio, pRxVirtq->uIdx);
|
---|
2024 | Log7(("\n"));
|
---|
2025 | return rc;
|
---|
2026 | }
|
---|
2027 |
|
---|
2028 | /**
|
---|
2029 | * Pad and store received packet.
|
---|
2030 | *
|
---|
2031 | * @remarks Make sure that the packet appears to upper layer as one coming
|
---|
2032 | * from real Ethernet: pad it and insert FCS.
|
---|
2033 | *
|
---|
2034 | * @returns VBox status code.
|
---|
2035 | * @param pDevIns The device instance.
|
---|
2036 | * @param pThis The virtio-net shared instance data.
|
---|
2037 | * @param pvBuf The available data.
|
---|
2038 | * @param cb Number of bytes available in the buffer.
|
---|
2039 | * @param pGso Pointer to Global Segmentation Offload structure
|
---|
2040 | * @param pRxVirtq Pointer to Rx virtqueue
|
---|
2041 | * @thread RX
|
---|
2042 | */
|
---|
2043 |
|
---|
2044 | static int virtioNetR3CopyRxPktToGuest(PPDMDEVINS pDevIns, PVIRTIONET pThis, PVIRTIONETCC pThisCC, const void *pvBuf, size_t cb,
|
---|
2045 | PVIRTIONETPKTHDR pRxPktHdr, uint8_t cbPktHdr, PVIRTIONETVIRTQ pRxVirtq)
|
---|
2046 | {
|
---|
2047 | RT_NOREF(pThisCC);
|
---|
2048 | VIRTQBUF_T VirtqBuf;
|
---|
2049 |
|
---|
2050 | VirtqBuf.u32Magic = VIRTQBUF_MAGIC;
|
---|
2051 | VirtqBuf.cRefs = 1;
|
---|
2052 |
|
---|
2053 | PVIRTQBUF pVirtqBuf = &VirtqBuf;
|
---|
2054 | int rc = virtioCoreR3VirtqAvailBufGet(pDevIns, &pThis->Virtio, pRxVirtq->uIdx, pVirtqBuf, true);
|
---|
2055 | AssertMsgReturn(rc == VINF_SUCCESS || rc == VERR_NOT_AVAILABLE, ("%Rrc\n", rc), rc);
|
---|
2056 | AssertMsgReturn(rc == VINF_SUCCESS && pVirtqBuf->cbPhysReturn,
|
---|
2057 | ("Not enough Rx buffers or capacity to accommodate ethernet packet\n"),
|
---|
2058 | VERR_INTERNAL_ERROR);
|
---|
2059 |
|
---|
2060 | /*
|
---|
2061 | * Try to do fast (e.g. single-buffer) copy to guest, even if MRG_RXBUF feature is enabled
|
---|
2062 | */
|
---|
2063 | STAM_PROFILE_START(&pThis->StatReceiveStore, a);
|
---|
2064 | if (RT_LIKELY(FEATURE_DISABLED(MRG_RXBUF))
|
---|
2065 | || RT_LIKELY(pVirtqBuf->cbPhysReturn > cb + cbPktHdr))
|
---|
2066 | {
|
---|
2067 | Log7Func(("Send Rx packet header and data to guest (single-buffer copy)...\n"));
|
---|
2068 | pRxPktHdr->uNumBuffers = 1;
|
---|
2069 | rc = virtioCoreR3VirtqUsedBufPut(pDevIns, &pThis->Virtio, pRxVirtq->uIdx, cbPktHdr, pRxPktHdr, pVirtqBuf, 0 /* cbEnqueue */);
|
---|
2070 | if (rc == VINF_SUCCESS)
|
---|
2071 | rc = virtioCoreR3VirtqUsedBufPut(pDevIns, &pThis->Virtio, pRxVirtq->uIdx, cb, pvBuf, pVirtqBuf, cbPktHdr + cb /* cbEnqueue */);
|
---|
2072 | virtioCoreVirtqUsedRingSync(pDevIns, &pThis->Virtio, pRxVirtq->uIdx);
|
---|
2073 | AssertMsgReturn(rc == VINF_SUCCESS, ("%Rrc\n", rc), rc);
|
---|
2074 | }
|
---|
2075 | else
|
---|
2076 | {
|
---|
2077 | Log7Func(("Send Rx pkt to guest (merged-buffer copy [MRG_RXBUF feature])...\n"));
|
---|
2078 | rc = virtioNetR3RxPktMultibufXfer(pDevIns, pThis, (uint8_t *)pvBuf, cb, pRxPktHdr, pRxVirtq, pVirtqBuf);
|
---|
2079 | return rc;
|
---|
2080 | }
|
---|
2081 | STAM_PROFILE_STOP(&pThis->StatReceiveStore, a);
|
---|
2082 | return VINF_SUCCESS;
|
---|
2083 | }
|
---|
2084 |
|
---|
2085 | /**
|
---|
2086 | * @interface_method_impl{PDMINETWORKDOWN,pfnReceiveGso}
|
---|
2087 | */
|
---|
2088 | static DECLCALLBACK(int) virtioNetR3NetworkDown_ReceiveGso(PPDMINETWORKDOWN pInterface, const void *pvBuf, size_t cb,
|
---|
2089 | PCPDMNETWORKGSO pGso)
|
---|
2090 | {
|
---|
2091 | PVIRTIONETCC pThisCC = RT_FROM_MEMBER(pInterface, VIRTIONETCC, INetworkDown);
|
---|
2092 | PPDMDEVINS pDevIns = pThisCC->pDevIns;
|
---|
2093 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
2094 | VIRTIONETPKTHDR rxPktHdr = { 0, VIRTIONET_HDR_GSO_NONE, 0, 0, 0, 0, 0 };
|
---|
2095 |
|
---|
2096 | if (!pThis->fVirtioReady)
|
---|
2097 | {
|
---|
2098 | LogRelFunc(("VirtIO not ready, aborting downstream receive\n"));
|
---|
2099 | return VERR_INTERRUPTED;
|
---|
2100 | }
|
---|
2101 | /*
|
---|
2102 | * If GSO (Global Segment Offloading) was received from downstream PDM network device, massage the
|
---|
2103 | * PDM-provided GSO parameters into VirtIO semantics, which get passed to guest virtio-net via
|
---|
2104 | * Rx pkt header. See VirtIO 1.1, 5.1.6 Device Operation for more information.
|
---|
2105 | */
|
---|
2106 | if (pGso)
|
---|
2107 | {
|
---|
2108 | LogFunc(("[%s] (%RTmac) \n", pThis->szInst, pvBuf));
|
---|
2109 |
|
---|
2110 | rxPktHdr.uFlags = VIRTIONET_HDR_F_NEEDS_CSUM;
|
---|
2111 | rxPktHdr.uHdrLen = pGso->cbHdrsTotal;
|
---|
2112 | rxPktHdr.uGsoSize = pGso->cbMaxSeg;
|
---|
2113 | rxPktHdr.uChksumStart = pGso->offHdr2;
|
---|
2114 |
|
---|
2115 | switch (pGso->u8Type)
|
---|
2116 | {
|
---|
2117 | case PDMNETWORKGSOTYPE_IPV4_TCP:
|
---|
2118 | rxPktHdr.uGsoType = VIRTIONET_HDR_GSO_TCPV4;
|
---|
2119 | rxPktHdr.uChksumOffset = RT_OFFSETOF(RTNETTCP, th_sum);
|
---|
2120 | break;
|
---|
2121 | case PDMNETWORKGSOTYPE_IPV6_TCP:
|
---|
2122 | rxPktHdr.uGsoType = VIRTIONET_HDR_GSO_TCPV6;
|
---|
2123 | rxPktHdr.uChksumOffset = RT_OFFSETOF(RTNETTCP, th_sum);
|
---|
2124 | break;
|
---|
2125 | case PDMNETWORKGSOTYPE_IPV4_UDP:
|
---|
2126 | rxPktHdr.uGsoType = VIRTIONET_HDR_GSO_UDP;
|
---|
2127 | rxPktHdr.uChksumOffset = RT_OFFSETOF(RTNETUDP, uh_sum);
|
---|
2128 | break;
|
---|
2129 | default:
|
---|
2130 | LogFunc(("[%s] GSO type (0x%x) not supported\n", pThis->szInst, pGso->u8Type));
|
---|
2131 | return VERR_NOT_SUPPORTED;
|
---|
2132 | }
|
---|
2133 | STAM_REL_COUNTER_INC(&pThis->StatReceiveGSO);
|
---|
2134 | Log2Func(("[%s] gso type=%#x, cbHdrsTotal=%u cbHdrsSeg=%u mss=%u offHdr1=%#x offHdr2=%#x\n",
|
---|
2135 | pThis->szInst, pGso->u8Type, pGso->cbHdrsTotal, pGso->cbHdrsSeg,
|
---|
2136 | pGso->cbMaxSeg, pGso->offHdr1, pGso->offHdr2));
|
---|
2137 | }
|
---|
2138 |
|
---|
2139 | /*
|
---|
2140 | * Find a virtq with Rx bufs on avail ring, if any, and copy the packet to the guest's Rx buffer.
|
---|
2141 | * @todo pk: PROBABLY NOT A SOPHISTICATED ENOUGH QUEUE SELECTION ALGORTITH FOR OPTIMAL MQ (FEATURE) SUPPORT
|
---|
2142 | */
|
---|
2143 | for (int uVirtqPair = 0; uVirtqPair < pThis->cVirtqPairs; uVirtqPair++)
|
---|
2144 | {
|
---|
2145 | PVIRTIONETVIRTQ pRxVirtq = &pThis->aVirtqs[RXQIDX(uVirtqPair)];
|
---|
2146 | if (RT_SUCCESS(virtioNetR3CheckRxBufsAvail(pDevIns, pThis, pRxVirtq)))
|
---|
2147 | {
|
---|
2148 | int rc = VINF_SUCCESS;
|
---|
2149 | STAM_PROFILE_START(&pThis->StatReceive, a);
|
---|
2150 | virtioNetR3SetReadLed(pThisCC, true);
|
---|
2151 | if (virtioNetR3AddressFilter(pThis, pvBuf, cb))
|
---|
2152 | {
|
---|
2153 | /* rxPktHdr is local stack variable that should not go out of scope in this use */
|
---|
2154 | rc = virtioNetR3CopyRxPktToGuest(pDevIns, pThis, pThisCC, pvBuf, cb, &rxPktHdr, pThis->cbPktHdr, pRxVirtq);
|
---|
2155 | STAM_REL_COUNTER_ADD(&pThis->StatReceiveBytes, cb);
|
---|
2156 | }
|
---|
2157 | virtioNetR3SetReadLed(pThisCC, false);
|
---|
2158 | STAM_PROFILE_STOP(&pThis->StatReceive, a);
|
---|
2159 | return rc;
|
---|
2160 | }
|
---|
2161 | }
|
---|
2162 | return VERR_INTERRUPTED;
|
---|
2163 | }
|
---|
2164 |
|
---|
2165 | /**
|
---|
2166 | * @interface_method_impl{PDMINETWORKDOWN,pfnReceive}
|
---|
2167 | */
|
---|
2168 | static DECLCALLBACK(int) virtioNetR3NetworkDown_Receive(PPDMINETWORKDOWN pInterface, const void *pvBuf, size_t cb)
|
---|
2169 | {
|
---|
2170 |
|
---|
2171 | #ifdef LOG_ENABLED
|
---|
2172 | PVIRTIONETCC pThisCC = RT_FROM_MEMBER(pInterface, VIRTIONETCC, INetworkDown);
|
---|
2173 | PPDMDEVINS pDevIns = pThisCC->pDevIns;
|
---|
2174 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
2175 | LogFunc(("[%s] (%RTmac)\n", pThis->szInst, pvBuf));
|
---|
2176 | #endif
|
---|
2177 |
|
---|
2178 | return virtioNetR3NetworkDown_ReceiveGso(pInterface, pvBuf, cb, NULL);
|
---|
2179 | }
|
---|
2180 |
|
---|
2181 | /*
|
---|
2182 | * Dispatched to here from virtioNetR3Ctrl() to configure this virtio-net device's Rx packet receive filtering.
|
---|
2183 | * See VirtIO 1.0, 5.1.6.5.1
|
---|
2184 | *
|
---|
2185 | * @param pThis virtio-net instance
|
---|
2186 | * @param pCtrlPktHdr Control packet header (which includes command parameters)
|
---|
2187 | * @param pVirtqBuf Buffer from ctrlq buffer (contains command data)
|
---|
2188 | */
|
---|
2189 | static uint8_t virtioNetR3CtrlRx(PVIRTIONET pThis, PVIRTIONETCC pThisCC,
|
---|
2190 | PVIRTIONET_CTRL_HDR_T pCtrlPktHdr, PVIRTQBUF pVirtqBuf)
|
---|
2191 | {
|
---|
2192 |
|
---|
2193 | #define LOG_VIRTIONET_FLAG(fld) LogFunc(("[%s] Setting %s=%d\n", pThis->szInst, #fld, pThis->fld))
|
---|
2194 |
|
---|
2195 | LogFunc(("[%s] Processing CTRL Rx command\n", pThis->szInst));
|
---|
2196 | switch(pCtrlPktHdr->uCmd)
|
---|
2197 | {
|
---|
2198 | case VIRTIONET_CTRL_RX_PROMISC:
|
---|
2199 | break;
|
---|
2200 | case VIRTIONET_CTRL_RX_ALLMULTI:
|
---|
2201 | break;
|
---|
2202 | case VIRTIONET_CTRL_RX_ALLUNI:
|
---|
2203 | /* fallthrough */
|
---|
2204 | case VIRTIONET_CTRL_RX_NOMULTI:
|
---|
2205 | /* fallthrough */
|
---|
2206 | case VIRTIONET_CTRL_RX_NOUNI:
|
---|
2207 | /* fallthrough */
|
---|
2208 | case VIRTIONET_CTRL_RX_NOBCAST:
|
---|
2209 | AssertMsgReturn(FEATURE_ENABLED(CTRL_RX_EXTRA),
|
---|
2210 | ("CTRL 'extra' cmd w/o VIRTIONET_F_CTRL_RX_EXTRA feature negotiated - skipping\n"),
|
---|
2211 | VIRTIONET_ERROR);
|
---|
2212 | /* fall out */
|
---|
2213 | }
|
---|
2214 |
|
---|
2215 | uint8_t fOn, fPromiscChanged = false;
|
---|
2216 | virtioCoreR3VirtqBufDrain(&pThis->Virtio, pVirtqBuf, &fOn, (size_t)RT_MIN(pVirtqBuf->cbPhysSend, sizeof(fOn)));
|
---|
2217 |
|
---|
2218 | switch(pCtrlPktHdr->uCmd)
|
---|
2219 | {
|
---|
2220 | case VIRTIONET_CTRL_RX_PROMISC:
|
---|
2221 | pThis->fPromiscuous = RT_BOOL(fOn);
|
---|
2222 | fPromiscChanged = true;
|
---|
2223 | LOG_VIRTIONET_FLAG(fPromiscuous);
|
---|
2224 | break;
|
---|
2225 | case VIRTIONET_CTRL_RX_ALLMULTI:
|
---|
2226 | pThis->fAllMulticast = RT_BOOL(fOn);
|
---|
2227 | fPromiscChanged = true;
|
---|
2228 | LOG_VIRTIONET_FLAG(fAllMulticast);
|
---|
2229 | break;
|
---|
2230 | case VIRTIONET_CTRL_RX_ALLUNI:
|
---|
2231 | pThis->fAllUnicast = RT_BOOL(fOn);
|
---|
2232 | LOG_VIRTIONET_FLAG(fAllUnicast);
|
---|
2233 | break;
|
---|
2234 | case VIRTIONET_CTRL_RX_NOMULTI:
|
---|
2235 | pThis->fNoMulticast = RT_BOOL(fOn);
|
---|
2236 | LOG_VIRTIONET_FLAG(fNoMulticast);
|
---|
2237 | break;
|
---|
2238 | case VIRTIONET_CTRL_RX_NOUNI:
|
---|
2239 | pThis->fNoUnicast = RT_BOOL(fOn);
|
---|
2240 | LOG_VIRTIONET_FLAG(fNoUnicast);
|
---|
2241 | break;
|
---|
2242 | case VIRTIONET_CTRL_RX_NOBCAST:
|
---|
2243 | pThis->fNoBroadcast = RT_BOOL(fOn);
|
---|
2244 | LOG_VIRTIONET_FLAG(fNoBroadcast);
|
---|
2245 | break;
|
---|
2246 | }
|
---|
2247 |
|
---|
2248 | if (pThisCC->pDrv && fPromiscChanged)
|
---|
2249 | pThisCC->pDrv->pfnSetPromiscuousMode(pThisCC->pDrv, (pThis->fPromiscuous || pThis->fAllMulticast));
|
---|
2250 |
|
---|
2251 | return VIRTIONET_OK;
|
---|
2252 | }
|
---|
2253 |
|
---|
2254 | /*
|
---|
2255 | * Dispatched to here from virtioNetR3Ctrl() to configure this virtio-net device's MAC filter tables
|
---|
2256 | * See VirtIO 1.0, 5.1.6.5.2
|
---|
2257 | *
|
---|
2258 | * @param pThis virtio-net instance
|
---|
2259 | * @param pCtrlPktHdr Control packet header (which includes command parameters)
|
---|
2260 | * @param pVirtqBuf Buffer from ctrlq buffer (contains command data)
|
---|
2261 | */
|
---|
2262 | static uint8_t virtioNetR3CtrlMac(PVIRTIONET pThis, PVIRTIONET_CTRL_HDR_T pCtrlPktHdr, PVIRTQBUF pVirtqBuf)
|
---|
2263 | {
|
---|
2264 | LogFunc(("[%s] Processing CTRL MAC command\n", pThis->szInst));
|
---|
2265 |
|
---|
2266 |
|
---|
2267 | AssertMsgReturn(pVirtqBuf->cbPhysSend >= sizeof(*pCtrlPktHdr),
|
---|
2268 | ("insufficient descriptor space for ctrl pkt hdr"),
|
---|
2269 | VIRTIONET_ERROR);
|
---|
2270 |
|
---|
2271 | size_t cbRemaining = pVirtqBuf->cbPhysSend;
|
---|
2272 | switch(pCtrlPktHdr->uCmd)
|
---|
2273 | {
|
---|
2274 | case VIRTIONET_CTRL_MAC_ADDR_SET:
|
---|
2275 | {
|
---|
2276 | /* Set default Rx filter MAC */
|
---|
2277 | AssertMsgReturn(cbRemaining >= sizeof(pThis->rxFilterMacDefault),
|
---|
2278 | ("DESC chain too small to process CTRL_MAC_ADDR_SET cmd\n"), VIRTIONET_ERROR);
|
---|
2279 |
|
---|
2280 | virtioCoreR3VirtqBufDrain(&pThis->Virtio, pVirtqBuf, &pThis->rxFilterMacDefault, sizeof(RTMAC));
|
---|
2281 | break;
|
---|
2282 | }
|
---|
2283 | case VIRTIONET_CTRL_MAC_TABLE_SET:
|
---|
2284 | {
|
---|
2285 | VIRTIONET_CTRL_MAC_TABLE_LEN cMacs;
|
---|
2286 |
|
---|
2287 | /* Load unicast MAC filter table */
|
---|
2288 | AssertMsgReturn(cbRemaining >= sizeof(cMacs),
|
---|
2289 | ("DESC chain too small to process CTRL_MAC_TABLE_SET cmd\n"), VIRTIONET_ERROR);
|
---|
2290 |
|
---|
2291 | /* Fetch count of unicast filter MACs from guest buffer */
|
---|
2292 | virtioCoreR3VirtqBufDrain(&pThis->Virtio, pVirtqBuf, &cMacs, sizeof(cMacs));
|
---|
2293 | cbRemaining -= sizeof(cMacs);
|
---|
2294 |
|
---|
2295 | Log7Func(("[%s] Guest provided %d unicast MAC Table entries\n", pThis->szInst, cMacs));
|
---|
2296 |
|
---|
2297 | if (cMacs)
|
---|
2298 | {
|
---|
2299 | uint32_t cbMacs = cMacs * sizeof(RTMAC);
|
---|
2300 |
|
---|
2301 | AssertMsgReturn(cbMacs <= sizeof(pThis->aMacUnicastFilter) / sizeof(RTMAC),
|
---|
2302 | ("Guest provided Unicast MAC filter table exceeds hardcoded table size"), VIRTIONET_ERROR);
|
---|
2303 |
|
---|
2304 | AssertMsgReturn(cbRemaining >= cbMacs,
|
---|
2305 | ("Virtq buffer too small to process CTRL_MAC_TABLE_SET cmd\n"), VIRTIONET_ERROR);
|
---|
2306 |
|
---|
2307 |
|
---|
2308 | /* Fetch unicast table contents from guest buffer */
|
---|
2309 | virtioCoreR3VirtqBufDrain(&pThis->Virtio, pVirtqBuf, &pThis->aMacUnicastFilter, cbMacs);
|
---|
2310 | cbRemaining -= cbMacs;
|
---|
2311 | }
|
---|
2312 | pThis->cUnicastFilterMacs = cMacs;
|
---|
2313 |
|
---|
2314 | /* Load multicast MAC filter table */
|
---|
2315 | AssertMsgReturn(cbRemaining >= sizeof(cMacs),
|
---|
2316 | ("Virtq buffer too small to process CTRL_MAC_TABLE_SET cmd\n"), VIRTIONET_ERROR);
|
---|
2317 |
|
---|
2318 | /* Fetch count of multicast filter MACs from guest buffer */
|
---|
2319 | virtioCoreR3VirtqBufDrain(&pThis->Virtio, pVirtqBuf, &cMacs, sizeof(cMacs));
|
---|
2320 | cbRemaining -= sizeof(cMacs);
|
---|
2321 |
|
---|
2322 | Log10Func(("[%s] Guest provided %d multicast MAC Table entries\n", pThis->szInst, cMacs));
|
---|
2323 |
|
---|
2324 | if (cMacs)
|
---|
2325 | {
|
---|
2326 | uint32_t cbMacs = cMacs * sizeof(RTMAC);
|
---|
2327 |
|
---|
2328 | AssertMsgReturn(cbMacs <= sizeof(pThis->aMacMulticastFilter) / sizeof(RTMAC),
|
---|
2329 | ("Guest provided Unicast MAC filter table exceeds hardcoded table size"), VIRTIONET_ERROR);
|
---|
2330 |
|
---|
2331 | AssertMsgReturn(cbRemaining >= cbMacs,
|
---|
2332 | ("Virtq buffer too small to process CTRL_MAC_TABLE_SET cmd\n"), VIRTIONET_ERROR);
|
---|
2333 |
|
---|
2334 | /* Fetch multicast table contents from guest buffer */
|
---|
2335 | virtioCoreR3VirtqBufDrain(&pThis->Virtio, pVirtqBuf, &pThis->aMacMulticastFilter, cbMacs);
|
---|
2336 | cbRemaining -= cbMacs;
|
---|
2337 | }
|
---|
2338 | pThis->cMulticastFilterMacs = cMacs;
|
---|
2339 |
|
---|
2340 | #ifdef LOG_ENABLED
|
---|
2341 | LogFunc(("[%s] unicast MACs:\n", pThis->szInst));
|
---|
2342 | for(unsigned i = 0; i < pThis->cUnicastFilterMacs; i++)
|
---|
2343 | LogFunc((" %RTmac\n", &pThis->aMacUnicastFilter[i]));
|
---|
2344 |
|
---|
2345 | LogFunc(("[%s] multicast MACs:\n", pThis->szInst));
|
---|
2346 | for(unsigned i = 0; i < pThis->cMulticastFilterMacs; i++)
|
---|
2347 | LogFunc((" %RTmac\n", &pThis->aMacMulticastFilter[i]));
|
---|
2348 | #endif
|
---|
2349 | break;
|
---|
2350 | }
|
---|
2351 | default:
|
---|
2352 | LogRelFunc(("Unrecognized MAC subcommand in CTRL pkt from guest\n"));
|
---|
2353 | return VIRTIONET_ERROR;
|
---|
2354 | }
|
---|
2355 | return VIRTIONET_OK;
|
---|
2356 | }
|
---|
2357 |
|
---|
2358 | /*
|
---|
2359 | * Dispatched to here from virtioNetR3Ctrl() to configure this virtio-net device's MQ (multiqueue) operations.
|
---|
2360 | * See VirtIO 1.0, 5.1.6.5.5
|
---|
2361 | *
|
---|
2362 | * @param pThis virtio-net instance
|
---|
2363 | * @param pCtrlPktHdr Control packet header (which includes command parameters)
|
---|
2364 | * @param pVirtqBuf Buffer from ctrlq buffer (contains command data)
|
---|
2365 | */
|
---|
2366 | static uint8_t virtioNetR3CtrlMultiQueue(PVIRTIONET pThis, PVIRTIONETCC pThisCC, PPDMDEVINS pDevIns, PVIRTIONET_CTRL_HDR_T pCtrlPktHdr, PVIRTQBUF pVirtqBuf)
|
---|
2367 | {
|
---|
2368 | LogFunc(("[%s] Processing CTRL MQ command\n", pThis->szInst));
|
---|
2369 |
|
---|
2370 | uint16_t cVirtqPairs;
|
---|
2371 | switch(pCtrlPktHdr->uCmd)
|
---|
2372 | {
|
---|
2373 | case VIRTIONET_CTRL_MQ_VQ_PAIRS_SET:
|
---|
2374 | {
|
---|
2375 | size_t cbRemaining = pVirtqBuf->cbPhysSend;
|
---|
2376 |
|
---|
2377 | AssertMsgReturn(cbRemaining > sizeof(cVirtqPairs),
|
---|
2378 | ("DESC chain too small for VIRTIONET_CTRL_MQ cmd processing"), VIRTIONET_ERROR);
|
---|
2379 |
|
---|
2380 | /* Fetch number of virtq pairs from guest buffer */
|
---|
2381 | virtioCoreR3VirtqBufDrain(&pThis->Virtio, pVirtqBuf, &cVirtqPairs, sizeof(cVirtqPairs));
|
---|
2382 |
|
---|
2383 | AssertMsgReturn(cVirtqPairs > VIRTIONET_MAX_QPAIRS,
|
---|
2384 | ("[%s] Guest CTRL MQ virtq pair count out of range [%d])\n", pThis->szInst, cVirtqPairs), VIRTIONET_ERROR);
|
---|
2385 |
|
---|
2386 | LogFunc(("[%s] Guest specifies %d VQ pairs in use\n", pThis->szInst, cVirtqPairs));
|
---|
2387 | pThis->cVirtqPairs = cVirtqPairs;
|
---|
2388 | break;
|
---|
2389 | }
|
---|
2390 | default:
|
---|
2391 | LogRelFunc(("Unrecognized multiqueue subcommand in CTRL pkt from guest\n"));
|
---|
2392 | return VIRTIONET_ERROR;
|
---|
2393 | }
|
---|
2394 |
|
---|
2395 | /*
|
---|
2396 | * The MQ control function is invoked by the guest in an RPC like manner to change
|
---|
2397 | * the Rx/Tx queue pair count. If the new value exceeds the number of queues
|
---|
2398 | * (and associated workers) already initialized initialize only the new queues and
|
---|
2399 | * respective workers.
|
---|
2400 | */
|
---|
2401 | if (pThis->cVirtqPairs > pThis->cInitializedVirtqPairs)
|
---|
2402 | {
|
---|
2403 | virtioNetR3SetVirtqNames(pThis, virtioCoreIsLegacyMode(&pThis->Virtio));
|
---|
2404 | int rc = virtioNetR3CreateWorkerThreads(pDevIns, pThis, pThisCC);
|
---|
2405 | if (RT_FAILURE(rc))
|
---|
2406 | {
|
---|
2407 | LogRelFunc(("Failed to create worker threads\n"));
|
---|
2408 | return VIRTIONET_ERROR;
|
---|
2409 | }
|
---|
2410 | }
|
---|
2411 | return VIRTIONET_OK;
|
---|
2412 | }
|
---|
2413 |
|
---|
2414 | /*
|
---|
2415 | * Dispatched to here from virtioNetR3Ctrl() to configure this virtio-net device's VLAN filtering.
|
---|
2416 | * See VirtIO 1.0, 5.1.6.5.3
|
---|
2417 | *
|
---|
2418 | * @param pThis virtio-net instance
|
---|
2419 | * @param pCtrlPktHdr Control packet header (which includes command parameters)
|
---|
2420 | * @param pVirtqBuf Buffer from ctrlq buffer (contains command data)
|
---|
2421 | */
|
---|
2422 | static uint8_t virtioNetR3CtrlVlan(PVIRTIONET pThis, PVIRTIONET_CTRL_HDR_T pCtrlPktHdr, PVIRTQBUF pVirtqBuf)
|
---|
2423 | {
|
---|
2424 | LogFunc(("[%s] Processing CTRL VLAN command\n", pThis->szInst));
|
---|
2425 |
|
---|
2426 | uint16_t uVlanId;
|
---|
2427 | size_t cbRemaining = pVirtqBuf->cbPhysSend;
|
---|
2428 |
|
---|
2429 | AssertMsgReturn(cbRemaining >= sizeof(uVlanId),
|
---|
2430 | ("DESC chain too small for VIRTIONET_CTRL_VLAN cmd processing"), VIRTIONET_ERROR);
|
---|
2431 |
|
---|
2432 | /* Fetch VLAN ID from guest buffer */
|
---|
2433 | virtioCoreR3VirtqBufDrain(&pThis->Virtio, pVirtqBuf, &uVlanId, sizeof(uVlanId));
|
---|
2434 |
|
---|
2435 | AssertMsgReturn(uVlanId < VIRTIONET_MAX_VLAN_ID,
|
---|
2436 | ("%s VLAN ID out of range (VLAN ID=%u)\n", pThis->szInst, uVlanId), VIRTIONET_ERROR);
|
---|
2437 |
|
---|
2438 | LogFunc(("[%s] uCommand=%u VLAN ID=%u\n", pThis->szInst, pCtrlPktHdr->uCmd, uVlanId));
|
---|
2439 |
|
---|
2440 | switch (pCtrlPktHdr->uCmd)
|
---|
2441 | {
|
---|
2442 | case VIRTIONET_CTRL_VLAN_ADD:
|
---|
2443 | ASMBitSet(pThis->aVlanFilter, uVlanId);
|
---|
2444 | break;
|
---|
2445 | case VIRTIONET_CTRL_VLAN_DEL:
|
---|
2446 | ASMBitClear(pThis->aVlanFilter, uVlanId);
|
---|
2447 | break;
|
---|
2448 | default:
|
---|
2449 | LogRelFunc(("Unrecognized VLAN subcommand in CTRL pkt from guest\n"));
|
---|
2450 | return VIRTIONET_ERROR;
|
---|
2451 | }
|
---|
2452 | return VIRTIONET_OK;
|
---|
2453 | }
|
---|
2454 |
|
---|
2455 | /**
|
---|
2456 | * Processes control command from guest.
|
---|
2457 | * See VirtIO 1.0 spec, 5.1.6 "Device Operation" and 5.1.6.5 "Control Virtqueue".
|
---|
2458 | *
|
---|
2459 | * The control command is contained in a virtio buffer pulled from the virtio-net defined control queue (ctrlq).
|
---|
2460 | * Command type is parsed is dispatched to a command-specific device-configuration handler function (e.g. RX, MAC, VLAN, MQ
|
---|
2461 | * and ANNOUNCE).
|
---|
2462 | *
|
---|
2463 | * This function handles all parts of the host-side of the ctrlq round-trip buffer processing.
|
---|
2464 | *
|
---|
2465 | * Invoked by worker for virtio-net control queue to process a queued control command buffer.
|
---|
2466 | *
|
---|
2467 | * @param pDevIns PDM device instance
|
---|
2468 | * @param pThis virtio-net device instance
|
---|
2469 | * @param pThisCC virtio-net device instance
|
---|
2470 | * @param pVirtqBuf pointer to buffer pulled from virtq (input to this function)
|
---|
2471 | */
|
---|
2472 | static void virtioNetR3Ctrl(PPDMDEVINS pDevIns, PVIRTIONET pThis, PVIRTIONETCC pThisCC,
|
---|
2473 | PVIRTQBUF pVirtqBuf)
|
---|
2474 | {
|
---|
2475 | if (!(pThis->fNegotiatedFeatures & VIRTIONET_F_CTRL_VQ))
|
---|
2476 | LogFunc(("[%s] WARNING: Guest using CTRL queue w/o negotiating VIRTIONET_F_CTRL_VQ feature\n", pThis->szInst));
|
---|
2477 |
|
---|
2478 | LogFunc(("[%s] Received CTRL packet from guest\n", pThis->szInst));
|
---|
2479 |
|
---|
2480 | if (pVirtqBuf->cbPhysSend < 2)
|
---|
2481 | {
|
---|
2482 | LogFunc(("[%s] CTRL packet from guest driver incomplete. Skipping ctrl cmd\n", pThis->szInst));
|
---|
2483 | return;
|
---|
2484 | }
|
---|
2485 | else if (pVirtqBuf->cbPhysReturn < sizeof(VIRTIONET_CTRL_HDR_T_ACK))
|
---|
2486 | {
|
---|
2487 | LogFunc(("[%s] Guest driver didn't allocate memory to receive ctrl pkt ACK. Skipping ctrl cmd\n", pThis->szInst));
|
---|
2488 | return;
|
---|
2489 | }
|
---|
2490 |
|
---|
2491 | /*
|
---|
2492 | * Allocate buffer and read in the control command
|
---|
2493 | */
|
---|
2494 | VIRTIONET_CTRL_HDR_T CtrlPktHdr; RT_ZERO(CtrlPktHdr);
|
---|
2495 | AssertLogRelMsgReturnVoid(pVirtqBuf->cbPhysSend >= sizeof(CtrlPktHdr),
|
---|
2496 | ("DESC chain too small for CTRL pkt header"));
|
---|
2497 | virtioCoreR3VirtqBufDrain(&pThis->Virtio, pVirtqBuf, &CtrlPktHdr, sizeof(CtrlPktHdr));
|
---|
2498 |
|
---|
2499 | Log7Func(("[%s] CTRL COMMAND: class=%d command=%d\n", pThis->szInst, CtrlPktHdr.uClass, CtrlPktHdr.uCmd));
|
---|
2500 |
|
---|
2501 | uint8_t uAck;
|
---|
2502 | switch (CtrlPktHdr.uClass)
|
---|
2503 | {
|
---|
2504 | case VIRTIONET_CTRL_RX:
|
---|
2505 | uAck = virtioNetR3CtrlRx(pThis, pThisCC, &CtrlPktHdr, pVirtqBuf);
|
---|
2506 | break;
|
---|
2507 | case VIRTIONET_CTRL_MAC:
|
---|
2508 | uAck = virtioNetR3CtrlMac(pThis, &CtrlPktHdr, pVirtqBuf);
|
---|
2509 | break;
|
---|
2510 | case VIRTIONET_CTRL_VLAN:
|
---|
2511 | uAck = virtioNetR3CtrlVlan(pThis, &CtrlPktHdr, pVirtqBuf);
|
---|
2512 | break;
|
---|
2513 | case VIRTIONET_CTRL_MQ:
|
---|
2514 | uAck = virtioNetR3CtrlMultiQueue(pThis, pThisCC, pDevIns, &CtrlPktHdr, pVirtqBuf);
|
---|
2515 | break;
|
---|
2516 | case VIRTIONET_CTRL_ANNOUNCE:
|
---|
2517 | uAck = VIRTIONET_OK;
|
---|
2518 | if (FEATURE_DISABLED(STATUS) || FEATURE_DISABLED(GUEST_ANNOUNCE))
|
---|
2519 | {
|
---|
2520 | LogFunc(("%s Ignoring CTRL class VIRTIONET_CTRL_ANNOUNCE.\n"
|
---|
2521 | "VIRTIO_F_STATUS or VIRTIO_F_GUEST_ANNOUNCE feature not enabled\n", pThis->szInst));
|
---|
2522 | break;
|
---|
2523 | }
|
---|
2524 | if (CtrlPktHdr.uCmd != VIRTIONET_CTRL_ANNOUNCE_ACK)
|
---|
2525 | {
|
---|
2526 | LogFunc(("[%s] Ignoring CTRL class VIRTIONET_CTRL_ANNOUNCE. Unrecognized uCmd\n", pThis->szInst));
|
---|
2527 | break;
|
---|
2528 | }
|
---|
2529 | #if FEATURE_OFFERED(STATUS)
|
---|
2530 | pThis->virtioNetConfig.uStatus &= ~VIRTIONET_F_ANNOUNCE;
|
---|
2531 | #endif
|
---|
2532 | Log7Func(("[%s] Clearing VIRTIONET_F_ANNOUNCE in config status\n", pThis->szInst));
|
---|
2533 | break;
|
---|
2534 | default:
|
---|
2535 | LogRelFunc(("Unrecognized CTRL pkt hdr class (%d)\n", CtrlPktHdr.uClass));
|
---|
2536 | uAck = VIRTIONET_ERROR;
|
---|
2537 | }
|
---|
2538 |
|
---|
2539 | /* Return CTRL packet Ack byte (result code) to guest driver */
|
---|
2540 | RTSGSEG aStaticSegs[] = { { &uAck, sizeof(uAck) } };
|
---|
2541 | RTSGBUF SgBuf;
|
---|
2542 |
|
---|
2543 | RTSgBufInit(&SgBuf, aStaticSegs, RT_ELEMENTS(aStaticSegs));
|
---|
2544 | virtioCoreR3VirtqUsedBufPut(pDevIns, &pThis->Virtio, CTRLQIDX, &SgBuf, pVirtqBuf, true /* fFence */);
|
---|
2545 | virtioCoreVirtqUsedRingSync(pDevIns, &pThis->Virtio, CTRLQIDX);
|
---|
2546 |
|
---|
2547 | LogFunc(("%s Finished processing CTRL command with status %s\n",
|
---|
2548 | pThis->szInst, uAck == VIRTIONET_OK ? "VIRTIONET_OK" : "VIRTIONET_ERROR"));
|
---|
2549 | }
|
---|
2550 |
|
---|
2551 | /**
|
---|
2552 | * Reads virtio-net pkt header from provided Phy. addr of virtio descriptor chain
|
---|
2553 | * (e.g. S/G segment from guest-driver provided buffer pulled from Tx virtq)
|
---|
2554 | * Verifies state and supported modes, sets TCP header size.
|
---|
2555 | *
|
---|
2556 | * @param pVirtio VirtIO core instance data
|
---|
2557 | * @param pThis virtio-net instance
|
---|
2558 | * @param pDevIns PDM device instance
|
---|
2559 | * @param GCPhys Phys. Address from where to read virtio-net pkt header
|
---|
2560 | * @param pPktHdr Where to store read Tx pkt hdr (virtio pkt hdr size is determined from instance configuration)
|
---|
2561 | * @param cbFrame Total pkt frame size to inform bounds check
|
---|
2562 | */
|
---|
2563 | static int virtioNetR3ReadVirtioTxPktHdr(PVIRTIOCORE pVirtio, PVIRTIONET pThis, PPDMDEVINS pDevIns, RTGCPHYS GCPhys, PVIRTIONETPKTHDR pPktHdr, size_t cbFrame)
|
---|
2564 | {
|
---|
2565 | int rc = virtioCoreGCPhysRead(pVirtio, pDevIns, GCPhys, pPktHdr, pThis->cbPktHdr);
|
---|
2566 | if (RT_FAILURE(rc))
|
---|
2567 | return rc;
|
---|
2568 |
|
---|
2569 | LogFunc(("pktHdr (flags=%x gso-type=%x len=%x gso-size=%x Chksum-start=%x Chksum-offset=%x) cbFrame=%d\n",
|
---|
2570 | pPktHdr->uFlags, pPktHdr->uGsoType, pPktHdr->uHdrLen,
|
---|
2571 | pPktHdr->uGsoSize, pPktHdr->uChksumStart, pPktHdr->uChksumOffset, cbFrame));
|
---|
2572 |
|
---|
2573 | if (pPktHdr->uGsoType)
|
---|
2574 | {
|
---|
2575 | /* Segmentation offloading cannot be done without checksumming, and we do not support ECN */
|
---|
2576 | AssertMsgReturn( RT_LIKELY(pPktHdr->uFlags & VIRTIONET_HDR_F_NEEDS_CSUM)
|
---|
2577 | && !(RT_UNLIKELY(pPktHdr->uGsoType & VIRTIONET_HDR_GSO_ECN)),
|
---|
2578 | ("Unsupported ECN request in pkt header\n"), VERR_NOT_SUPPORTED);
|
---|
2579 |
|
---|
2580 | uint32_t uTcpHdrSize;
|
---|
2581 | switch (pPktHdr->uGsoType)
|
---|
2582 | {
|
---|
2583 | case VIRTIONET_HDR_GSO_TCPV4:
|
---|
2584 | case VIRTIONET_HDR_GSO_TCPV6:
|
---|
2585 | uTcpHdrSize = sizeof(RTNETTCP);
|
---|
2586 | break;
|
---|
2587 | case VIRTIONET_HDR_GSO_UDP:
|
---|
2588 | uTcpHdrSize = 0;
|
---|
2589 | break;
|
---|
2590 | default:
|
---|
2591 | LogFunc(("Bad GSO type in packet header\n"));
|
---|
2592 | return VERR_INVALID_PARAMETER;
|
---|
2593 | }
|
---|
2594 | /* Header + MSS must not exceed the packet size. */
|
---|
2595 | AssertMsgReturn(RT_LIKELY(uTcpHdrSize + pPktHdr->uChksumStart + pPktHdr->uGsoSize <= cbFrame),
|
---|
2596 | ("Header plus message exceeds packet size"), VERR_BUFFER_OVERFLOW);
|
---|
2597 | }
|
---|
2598 |
|
---|
2599 | AssertMsgReturn( !(pPktHdr->uFlags & VIRTIONET_HDR_F_NEEDS_CSUM)
|
---|
2600 | || sizeof(uint16_t) + pPktHdr->uChksumStart + pPktHdr->uChksumOffset <= cbFrame,
|
---|
2601 | ("Checksum (%d bytes) doesn't fit into pkt header (%d bytes)\n",
|
---|
2602 | sizeof(uint16_t) + pPktHdr->uChksumStart + pPktHdr->uChksumOffset, cbFrame),
|
---|
2603 | VERR_BUFFER_OVERFLOW);
|
---|
2604 |
|
---|
2605 | return VINF_SUCCESS;
|
---|
2606 | }
|
---|
2607 |
|
---|
2608 | /**
|
---|
2609 | * Transmits single GSO frame via PDM framework to downstream PDM device, to emit from virtual NIC.
|
---|
2610 | *
|
---|
2611 | * This does final prep of GSO parameters including checksum calculation if configured
|
---|
2612 | * (e.g. if VIRTIONET_HDR_F_NEEDS_CSUM flag is set).
|
---|
2613 | *
|
---|
2614 | * @param pThis virtio-net instance
|
---|
2615 | * @param pThisCC virtio-net instance
|
---|
2616 | * @param pSgBuf PDM S/G buffer containing pkt and hdr to transmit
|
---|
2617 | * @param pGso GSO parameters used for the packet
|
---|
2618 | * @param pPktHdr virtio-net pkt header to adapt to PDM semantics
|
---|
2619 | */
|
---|
2620 | static int virtioNetR3TransmitFrame(PVIRTIONET pThis, PVIRTIONETCC pThisCC, PPDMSCATTERGATHER pSgBuf,
|
---|
2621 | PPDMNETWORKGSO pGso, PVIRTIONETPKTHDR pPktHdr)
|
---|
2622 | {
|
---|
2623 |
|
---|
2624 | virtioNetR3PacketDump(pThis, (uint8_t *)pSgBuf->aSegs[0].pvSeg, pSgBuf->cbUsed, "--> Outgoing");
|
---|
2625 | if (pGso)
|
---|
2626 | {
|
---|
2627 | /* Some guests (RHEL) may report HdrLen excluding transport layer header!
|
---|
2628 | * Thus cannot use cdHdrs provided by the guest because of different ways
|
---|
2629 | * it gets filled out by different versions of kernels. */
|
---|
2630 | Log4Func(("%s HdrLen before adjustment %d.\n", pThis->szInst, pGso->cbHdrsTotal));
|
---|
2631 | switch (pGso->u8Type)
|
---|
2632 | {
|
---|
2633 | case PDMNETWORKGSOTYPE_IPV4_TCP:
|
---|
2634 | case PDMNETWORKGSOTYPE_IPV6_TCP:
|
---|
2635 | pGso->cbHdrsTotal = pPktHdr->uChksumStart +
|
---|
2636 | ((PRTNETTCP)(((uint8_t*)pSgBuf->aSegs[0].pvSeg) + pPktHdr->uChksumStart))->th_off * 4;
|
---|
2637 | AssertMsgReturn(pSgBuf->cbUsed > pGso->cbHdrsTotal,
|
---|
2638 | ("cbHdrsTotal exceeds size of frame"), VERR_BUFFER_OVERFLOW);
|
---|
2639 | pGso->cbHdrsSeg = pGso->cbHdrsTotal;
|
---|
2640 | break;
|
---|
2641 | case PDMNETWORKGSOTYPE_IPV4_UDP:
|
---|
2642 | pGso->cbHdrsTotal = (uint8_t)(pPktHdr->uChksumStart + sizeof(RTNETUDP));
|
---|
2643 | pGso->cbHdrsSeg = pPktHdr->uChksumStart;
|
---|
2644 | break;
|
---|
2645 | case PDMNETWORKGSOTYPE_INVALID:
|
---|
2646 | LogFunc(("%s ignoring invalid GSO frame\n", pThis->szInst));
|
---|
2647 | return VERR_INVALID_PARAMETER;
|
---|
2648 | }
|
---|
2649 | /* Update GSO structure embedded into the frame */
|
---|
2650 | ((PPDMNETWORKGSO)pSgBuf->pvUser)->cbHdrsTotal = pGso->cbHdrsTotal;
|
---|
2651 | ((PPDMNETWORKGSO)pSgBuf->pvUser)->cbHdrsSeg = pGso->cbHdrsSeg;
|
---|
2652 | Log4Func(("%s adjusted HdrLen to %d.\n",
|
---|
2653 | pThis->szInst, pGso->cbHdrsTotal));
|
---|
2654 | Log2Func(("%s gso type=%x cbHdrsTotal=%u cbHdrsSeg=%u mss=%u off1=0x%x off2=0x%x\n",
|
---|
2655 | pThis->szInst, pGso->u8Type, pGso->cbHdrsTotal, pGso->cbHdrsSeg,
|
---|
2656 | pGso->cbMaxSeg, pGso->offHdr1, pGso->offHdr2));
|
---|
2657 | STAM_REL_COUNTER_INC(&pThis->StatTransmitGSO);
|
---|
2658 | }
|
---|
2659 | else if (pPktHdr->uFlags & VIRTIONET_HDR_F_NEEDS_CSUM)
|
---|
2660 | {
|
---|
2661 | STAM_REL_COUNTER_INC(&pThis->StatTransmitCSum);
|
---|
2662 | /*
|
---|
2663 | * This is not GSO frame but checksum offloading is requested.
|
---|
2664 | */
|
---|
2665 | virtioNetR3Calc16BitChecksum((uint8_t*)pSgBuf->aSegs[0].pvSeg, pSgBuf->cbUsed,
|
---|
2666 | pPktHdr->uChksumStart, pPktHdr->uChksumOffset);
|
---|
2667 | }
|
---|
2668 |
|
---|
2669 | return pThisCC->pDrv->pfnSendBuf(pThisCC->pDrv, pSgBuf, true /* fOnWorkerThread */);
|
---|
2670 | }
|
---|
2671 |
|
---|
2672 | /**
|
---|
2673 | * Non-reentrant function transmits all available packets from specified Tx virtq to downstream
|
---|
2674 | * PDM device (if cable is connected). For each Tx pkt, virtio-net pkt header is converted
|
---|
2675 | * to required GSO information (VBox host network stack semantics)
|
---|
2676 | *
|
---|
2677 | * @param pDevIns PDM device instance
|
---|
2678 | * @param pThis virtio-net device instance
|
---|
2679 | * @param pThisCC virtio-net device instance
|
---|
2680 | * @param pTxVirtq Address of transmit virtq
|
---|
2681 | * @param fOnWorkerThread Flag to PDM whether to use caller's or or PDM transmit worker's thread.
|
---|
2682 | */
|
---|
2683 | static int virtioNetR3TransmitPkts(PPDMDEVINS pDevIns, PVIRTIONET pThis, PVIRTIONETCC pThisCC,
|
---|
2684 | PVIRTIONETVIRTQ pTxVirtq, bool fOnWorkerThread)
|
---|
2685 | {
|
---|
2686 | PVIRTIOCORE pVirtio = &pThis->Virtio;
|
---|
2687 |
|
---|
2688 |
|
---|
2689 | if (!pThis->fVirtioReady)
|
---|
2690 | {
|
---|
2691 | LogFunc(("%s Ignoring Tx requests. VirtIO not ready (status=0x%x)\n",
|
---|
2692 | pThis->szInst, pThis->virtioNetConfig.uStatus));
|
---|
2693 | return VERR_IGNORED;
|
---|
2694 | }
|
---|
2695 |
|
---|
2696 | if (!pThis->fCableConnected)
|
---|
2697 | {
|
---|
2698 | Log(("[%s] Ignoring transmit requests while cable is disconnected.\n", pThis->szInst));
|
---|
2699 | return VERR_IGNORED;
|
---|
2700 | }
|
---|
2701 |
|
---|
2702 | /*
|
---|
2703 | * Only one thread is allowed to transmit at a time, others should skip transmission as the packets
|
---|
2704 | * will be picked up by the transmitting thread.
|
---|
2705 | */
|
---|
2706 | if (!ASMAtomicCmpXchgU32(&pThis->uIsTransmitting, 1, 0))
|
---|
2707 | return VERR_IGNORED;
|
---|
2708 |
|
---|
2709 | PPDMINETWORKUP pDrv = pThisCC->pDrv;
|
---|
2710 | if (pDrv)
|
---|
2711 | {
|
---|
2712 | int rc = pDrv->pfnBeginXmit(pDrv, fOnWorkerThread);
|
---|
2713 | Assert(rc == VINF_SUCCESS || rc == VERR_TRY_AGAIN);
|
---|
2714 | if (rc == VERR_TRY_AGAIN)
|
---|
2715 | {
|
---|
2716 | ASMAtomicWriteU32(&pThis->uIsTransmitting, 0);
|
---|
2717 | return VERR_TRY_AGAIN;
|
---|
2718 | }
|
---|
2719 | }
|
---|
2720 | int cPkts = virtioCoreVirtqAvailBufCount(pVirtio->pDevInsR3, pVirtio, pTxVirtq->uIdx);
|
---|
2721 | if (!cPkts)
|
---|
2722 | {
|
---|
2723 | LogFunc(("[%s] No packets to send found on %s\n", pThis->szInst, pTxVirtq->szName));
|
---|
2724 |
|
---|
2725 | if (pDrv)
|
---|
2726 | pDrv->pfnEndXmit(pDrv);
|
---|
2727 |
|
---|
2728 | ASMAtomicWriteU32(&pThis->uIsTransmitting, 0);
|
---|
2729 | return VERR_MISSING;
|
---|
2730 | }
|
---|
2731 | LogFunc(("[%s] About to transmit %d pending packet%c\n", pThis->szInst, cPkts, cPkts == 1 ? ' ' : 's'));
|
---|
2732 |
|
---|
2733 | virtioNetR3SetWriteLed(pThisCC, true);
|
---|
2734 |
|
---|
2735 | /* Disable notifications until all available descriptors have been processed */
|
---|
2736 | if (!(pVirtio->uDriverFeatures & VIRTIO_F_EVENT_IDX))
|
---|
2737 | virtioCoreVirtqEnableNotify(&pThis->Virtio, pTxVirtq->uIdx, false /* fEnable */);
|
---|
2738 |
|
---|
2739 | int rc;
|
---|
2740 | VIRTQBUF_T VirtqBuf;
|
---|
2741 |
|
---|
2742 | VirtqBuf.u32Magic = VIRTQBUF_MAGIC;
|
---|
2743 | VirtqBuf.cRefs = 1;
|
---|
2744 |
|
---|
2745 | PVIRTQBUF pVirtqBuf = &VirtqBuf;
|
---|
2746 | while ((rc = virtioCoreR3VirtqAvailBufPeek(pVirtio->pDevInsR3, pVirtio, pTxVirtq->uIdx, pVirtqBuf)) == VINF_SUCCESS)
|
---|
2747 | {
|
---|
2748 | Log10Func(("[%s] fetched descriptor chain from %s\n", pThis->szInst, pTxVirtq->szName));
|
---|
2749 |
|
---|
2750 | PVIRTIOSGBUF pSgPhysSend = pVirtqBuf->pSgPhysSend;
|
---|
2751 | PVIRTIOSGSEG paSegsFromGuest = pSgPhysSend->paSegs;
|
---|
2752 | uint32_t cSegsFromGuest = pSgPhysSend->cSegs;
|
---|
2753 | size_t uFrameSize = 0;
|
---|
2754 |
|
---|
2755 | AssertMsgReturn(paSegsFromGuest[0].cbSeg >= pThis->cbPktHdr,
|
---|
2756 | ("Desc chain's first seg has insufficient space for pkt header!\n"),
|
---|
2757 | VERR_INTERNAL_ERROR);
|
---|
2758 |
|
---|
2759 | VIRTIONETPKTHDR PktHdr;
|
---|
2760 | PVIRTIONETPKTHDR pPktHdr = &PktHdr;
|
---|
2761 |
|
---|
2762 | /* Compute total frame size from guest (including virtio-net pkt hdr) */
|
---|
2763 | for (unsigned i = 0; i < cSegsFromGuest && uFrameSize < VIRTIONET_MAX_FRAME_SIZE; i++)
|
---|
2764 | uFrameSize += paSegsFromGuest[i].cbSeg;
|
---|
2765 |
|
---|
2766 | Log5Func(("[%s] complete frame is %u bytes.\n", pThis->szInst, uFrameSize));
|
---|
2767 | Assert(uFrameSize <= VIRTIONET_MAX_FRAME_SIZE);
|
---|
2768 |
|
---|
2769 | /* Truncate oversized frames. */
|
---|
2770 | if (uFrameSize > VIRTIONET_MAX_FRAME_SIZE)
|
---|
2771 | uFrameSize = VIRTIONET_MAX_FRAME_SIZE;
|
---|
2772 |
|
---|
2773 | if (pThisCC->pDrv)
|
---|
2774 | {
|
---|
2775 | uFrameSize -= pThis->cbPktHdr;
|
---|
2776 | /*
|
---|
2777 | * Peel off pkt header and convert to PDM/GSO semantics.
|
---|
2778 | */
|
---|
2779 | rc = virtioNetR3ReadVirtioTxPktHdr(pVirtio, pThis, pDevIns, paSegsFromGuest[0].GCPhys, pPktHdr, uFrameSize /* cbFrame */);
|
---|
2780 | if (RT_FAILURE(rc))
|
---|
2781 | return rc;
|
---|
2782 | virtioCoreGCPhysChainAdvance(pSgPhysSend, pThis->cbPktHdr);
|
---|
2783 |
|
---|
2784 | PDMNETWORKGSO Gso, *pGso = virtioNetR3SetupGsoCtx(&Gso, pPktHdr);
|
---|
2785 |
|
---|
2786 | /* Allocate PDM transmit buffer to send guest provided network frame from to VBox network leaf device */
|
---|
2787 | PPDMSCATTERGATHER pSgBufToPdmLeafDevice;
|
---|
2788 | rc = pThisCC->pDrv->pfnAllocBuf(pThisCC->pDrv, uFrameSize, pGso, &pSgBufToPdmLeafDevice);
|
---|
2789 |
|
---|
2790 | /*
|
---|
2791 | * Copy virtio-net guest S/G buffer to PDM leaf driver S/G buffer
|
---|
2792 | * converting from GCphys to virt memory at the same time
|
---|
2793 | */
|
---|
2794 | if (RT_SUCCESS(rc))
|
---|
2795 | {
|
---|
2796 | STAM_REL_COUNTER_INC(&pThis->StatTransmitPackets);
|
---|
2797 | STAM_PROFILE_START(&pThis->StatTransmitSend, a);
|
---|
2798 |
|
---|
2799 | size_t cbCopied = 0;
|
---|
2800 | size_t cbRemain = pSgBufToPdmLeafDevice->cbUsed = uFrameSize;
|
---|
2801 | uint64_t uOffset = 0;
|
---|
2802 | while (cbRemain)
|
---|
2803 | {
|
---|
2804 | PVIRTIOSGSEG paSeg = &pSgPhysSend->paSegs[pSgPhysSend->idxSeg];
|
---|
2805 | uint64_t srcSgStart = (uint64_t)paSeg->GCPhys;
|
---|
2806 | uint64_t srcSgLen = (uint64_t)paSeg->cbSeg;
|
---|
2807 | uint64_t srcSgCur = (uint64_t)pSgPhysSend->GCPhysCur;
|
---|
2808 | cbCopied = RT_MIN((uint64_t)cbRemain, srcSgLen - (srcSgCur - srcSgStart));
|
---|
2809 | virtioCoreGCPhysRead(pVirtio, pDevIns,
|
---|
2810 | (RTGCPHYS)pSgPhysSend->GCPhysCur,
|
---|
2811 | ((uint8_t *)pSgBufToPdmLeafDevice->aSegs[0].pvSeg) + uOffset, cbCopied);
|
---|
2812 | virtioCoreGCPhysChainAdvance(pSgPhysSend, cbCopied);
|
---|
2813 | cbRemain -= cbCopied;
|
---|
2814 | uOffset += cbCopied;
|
---|
2815 | }
|
---|
2816 |
|
---|
2817 | LogFunc((".... Copied %lu/%lu bytes to %lu byte guest buffer. Buf residual=%lu\n",
|
---|
2818 | uOffset, uFrameSize, pVirtqBuf->cbPhysSend, virtioCoreGCPhysChainCalcLengthLeft(pSgPhysSend)));
|
---|
2819 |
|
---|
2820 | rc = virtioNetR3TransmitFrame(pThis, pThisCC, pSgBufToPdmLeafDevice, pGso, pPktHdr);
|
---|
2821 | if (RT_FAILURE(rc))
|
---|
2822 | {
|
---|
2823 | LogFunc(("[%s] Failed to transmit frame, rc = %Rrc\n", pThis->szInst, rc));
|
---|
2824 | STAM_PROFILE_STOP(&pThis->StatTransmitSend, a);
|
---|
2825 | STAM_PROFILE_ADV_STOP(&pThis->StatTransmit, a);
|
---|
2826 | pThisCC->pDrv->pfnFreeBuf(pThisCC->pDrv, pSgBufToPdmLeafDevice);
|
---|
2827 | }
|
---|
2828 | STAM_PROFILE_STOP(&pThis->StatTransmitSend, a);
|
---|
2829 | STAM_REL_COUNTER_ADD(&pThis->StatTransmitBytes, uOffset);
|
---|
2830 | }
|
---|
2831 | else
|
---|
2832 | {
|
---|
2833 | Log4Func(("Failed to allocate S/G buffer: frame size=%u rc=%Rrc\n", uFrameSize, rc));
|
---|
2834 | /* Stop trying to fetch TX descriptors until we get more bandwidth. */
|
---|
2835 | break;
|
---|
2836 | }
|
---|
2837 |
|
---|
2838 | virtioCoreR3VirtqAvailBufNext(pVirtio, pTxVirtq->uIdx);
|
---|
2839 |
|
---|
2840 | /* No data to return to guest, but necessary to put elem (e.g. desc chain head idx) on used ring */
|
---|
2841 | virtioCoreR3VirtqUsedBufPut(pVirtio->pDevInsR3, pVirtio, pTxVirtq->uIdx, NULL, pVirtqBuf, true /* fFence */);
|
---|
2842 | virtioCoreVirtqUsedRingSync(pVirtio->pDevInsR3, pVirtio, pTxVirtq->uIdx);
|
---|
2843 | }
|
---|
2844 |
|
---|
2845 | /* Before we break the loop we need to check if the queue is empty,
|
---|
2846 | * re-enable notifications, and then re-check again to avoid missing
|
---|
2847 | * a notification for the descriptor that is added to the queue
|
---|
2848 | * after we have checked it on being empty, but before we re-enabled
|
---|
2849 | * notifications.
|
---|
2850 | */
|
---|
2851 | if (!(pVirtio->uDriverFeatures & VIRTIO_F_EVENT_IDX)
|
---|
2852 | && IS_VIRTQ_EMPTY(pDevIns, &pThis->Virtio, pTxVirtq->uIdx))
|
---|
2853 | virtioCoreVirtqEnableNotify(&pThis->Virtio, pTxVirtq->uIdx, true /* fEnable */);
|
---|
2854 | }
|
---|
2855 | virtioNetR3SetWriteLed(pThisCC, false);
|
---|
2856 |
|
---|
2857 | if (pDrv)
|
---|
2858 | pDrv->pfnEndXmit(pDrv);
|
---|
2859 |
|
---|
2860 | ASMAtomicWriteU32(&pThis->uIsTransmitting, 0);
|
---|
2861 | return VINF_SUCCESS;
|
---|
2862 | }
|
---|
2863 |
|
---|
2864 | /**
|
---|
2865 | * @interface_method_impl{PDMINETWORKDOWN,pfnXmitPending}
|
---|
2866 | */
|
---|
2867 | static DECLCALLBACK(void) virtioNetR3NetworkDown_XmitPending(PPDMINETWORKDOWN pInterface)
|
---|
2868 | {
|
---|
2869 | LogFunc(("\n"));
|
---|
2870 | PVIRTIONETCC pThisCC = RT_FROM_MEMBER(pInterface, VIRTIONETCC, INetworkDown);
|
---|
2871 | PPDMDEVINS pDevIns = pThisCC->pDevIns;
|
---|
2872 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pThisCC->pDevIns, PVIRTIONET);
|
---|
2873 | PVIRTIONETVIRTQ pTxVirtq = &pThis->aVirtqs[TXQIDX(0)];
|
---|
2874 | STAM_COUNTER_INC(&pThis->StatTransmitByNetwork);
|
---|
2875 |
|
---|
2876 | (void)virtioNetR3TransmitPkts(pDevIns, pThis, pThisCC, pTxVirtq, true /*fOnWorkerThread*/);
|
---|
2877 | }
|
---|
2878 |
|
---|
2879 | /**
|
---|
2880 | * @callback_method_impl{FNTMTIMERDEV, Link Up Timer handler.}
|
---|
2881 | */
|
---|
2882 | static DECLCALLBACK(void) virtioNetR3LinkUpTimer(PPDMDEVINS pDevIns, TMTIMERHANDLE hTimer, void *pvUser)
|
---|
2883 | {
|
---|
2884 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
2885 | PVIRTIONETCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVIRTIONETCC);
|
---|
2886 |
|
---|
2887 | SET_LINK_UP(pThis);
|
---|
2888 | virtioNetWakeupRxBufWaiter(pDevIns);
|
---|
2889 |
|
---|
2890 | if (pThisCC->pDrv)
|
---|
2891 | pThisCC->pDrv->pfnNotifyLinkChanged(pThisCC->pDrv, PDMNETWORKLINKSTATE_UP);
|
---|
2892 |
|
---|
2893 | LogFunc(("[%s] Link is up\n", pThis->szInst));
|
---|
2894 | RT_NOREF(hTimer, pvUser);
|
---|
2895 | }
|
---|
2896 |
|
---|
2897 | /**
|
---|
2898 | * @interface_method_impl{PDMINETWORKCONFIG,pfnSetLinkState}
|
---|
2899 | */
|
---|
2900 | static DECLCALLBACK(int) virtioNetR3NetworkConfig_SetLinkState(PPDMINETWORKCONFIG pInterface, PDMNETWORKLINKSTATE enmState)
|
---|
2901 | {
|
---|
2902 | PVIRTIONETCC pThisCC = RT_FROM_MEMBER(pInterface, VIRTIONETCC, INetworkConfig);
|
---|
2903 | PPDMDEVINS pDevIns = pThisCC->pDevIns;
|
---|
2904 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
2905 |
|
---|
2906 | bool fRequestedLinkStateIsUp = (enmState == PDMNETWORKLINKSTATE_UP);
|
---|
2907 |
|
---|
2908 | #ifdef LOG_ENABLED
|
---|
2909 | if (LogIs7Enabled())
|
---|
2910 | {
|
---|
2911 | LogFunc(("[%s]", pThis->szInst));
|
---|
2912 | switch(enmState)
|
---|
2913 | {
|
---|
2914 | case PDMNETWORKLINKSTATE_UP:
|
---|
2915 | Log(("UP\n"));
|
---|
2916 | break;
|
---|
2917 | case PDMNETWORKLINKSTATE_DOWN:
|
---|
2918 | Log(("DOWN\n"));
|
---|
2919 | break;
|
---|
2920 | case PDMNETWORKLINKSTATE_DOWN_RESUME:
|
---|
2921 | Log(("DOWN (RESUME)\n"));
|
---|
2922 | break;
|
---|
2923 | default:
|
---|
2924 | Log(("UNKNOWN)\n"));
|
---|
2925 | }
|
---|
2926 | }
|
---|
2927 | #endif
|
---|
2928 |
|
---|
2929 | if (enmState == PDMNETWORKLINKSTATE_DOWN_RESUME)
|
---|
2930 | {
|
---|
2931 | if (IS_LINK_UP(pThis))
|
---|
2932 | {
|
---|
2933 | /*
|
---|
2934 | * We bother to bring the link down only if it was up previously. The UP link state
|
---|
2935 | * notification will be sent when the link actually goes up in virtioNetR3LinkUpTimer().
|
---|
2936 | */
|
---|
2937 | virtioNetR3TempLinkDown(pDevIns, pThis, pThisCC);
|
---|
2938 | if (pThisCC->pDrv)
|
---|
2939 | pThisCC->pDrv->pfnNotifyLinkChanged(pThisCC->pDrv, enmState);
|
---|
2940 | }
|
---|
2941 | }
|
---|
2942 | else if (fRequestedLinkStateIsUp != IS_LINK_UP(pThis))
|
---|
2943 | {
|
---|
2944 | if (fRequestedLinkStateIsUp)
|
---|
2945 | {
|
---|
2946 | Log(("[%s] Link is up\n", pThis->szInst));
|
---|
2947 | pThis->fCableConnected = true;
|
---|
2948 | SET_LINK_UP(pThis);
|
---|
2949 | }
|
---|
2950 | else /* Link requested to be brought down */
|
---|
2951 | {
|
---|
2952 | /* The link was brought down explicitly, make sure it won't come up by timer. */
|
---|
2953 | PDMDevHlpTimerStop(pDevIns, pThisCC->hLinkUpTimer);
|
---|
2954 | Log(("[%s] Link is down\n", pThis->szInst));
|
---|
2955 | pThis->fCableConnected = false;
|
---|
2956 | SET_LINK_DOWN(pThis);
|
---|
2957 | }
|
---|
2958 | if (pThisCC->pDrv)
|
---|
2959 | pThisCC->pDrv->pfnNotifyLinkChanged(pThisCC->pDrv, enmState);
|
---|
2960 | }
|
---|
2961 | return VINF_SUCCESS;
|
---|
2962 | }
|
---|
2963 | /**
|
---|
2964 | * @interface_method_impl{PDMINETWORKCONFIG,pfnGetLinkState}
|
---|
2965 | */
|
---|
2966 | static DECLCALLBACK(PDMNETWORKLINKSTATE) virtioNetR3NetworkConfig_GetLinkState(PPDMINETWORKCONFIG pInterface)
|
---|
2967 | {
|
---|
2968 | PVIRTIONETCC pThisCC = RT_FROM_MEMBER(pInterface, VIRTIONETCC, INetworkConfig);
|
---|
2969 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pThisCC->pDevIns, PVIRTIONET);
|
---|
2970 |
|
---|
2971 | return IS_LINK_UP(pThis) ? PDMNETWORKLINKSTATE_UP : PDMNETWORKLINKSTATE_DOWN;
|
---|
2972 | }
|
---|
2973 |
|
---|
2974 | static int virtioNetR3DestroyWorkerThreads(PPDMDEVINS pDevIns, PVIRTIONET pThis, PVIRTIONETCC pThisCC)
|
---|
2975 | {
|
---|
2976 | Log10Func(("[%s]\n", pThis->szInst));
|
---|
2977 | int rc = VINF_SUCCESS;
|
---|
2978 | for (unsigned uIdxWorker = 0; uIdxWorker < pThis->cWorkers; uIdxWorker++)
|
---|
2979 | {
|
---|
2980 | PVIRTIONETWORKER pWorker = &pThis->aWorkers[uIdxWorker];
|
---|
2981 | PVIRTIONETWORKERR3 pWorkerR3 = &pThisCC->aWorkers[uIdxWorker];
|
---|
2982 |
|
---|
2983 | if (pWorker->hEvtProcess != NIL_SUPSEMEVENT)
|
---|
2984 | {
|
---|
2985 | PDMDevHlpSUPSemEventClose(pDevIns, pWorker->hEvtProcess);
|
---|
2986 | pWorker->hEvtProcess = NIL_SUPSEMEVENT;
|
---|
2987 | }
|
---|
2988 | if (pWorkerR3->pThread)
|
---|
2989 | {
|
---|
2990 | int rcThread;
|
---|
2991 | rc = PDMDevHlpThreadDestroy(pDevIns, pWorkerR3->pThread, &rcThread);
|
---|
2992 | if (RT_FAILURE(rc) || RT_FAILURE(rcThread))
|
---|
2993 | AssertMsgFailed(("%s Failed to destroythread rc=%Rrc rcThread=%Rrc\n", __FUNCTION__, rc, rcThread));
|
---|
2994 | pWorkerR3->pThread = NULL;
|
---|
2995 | }
|
---|
2996 | }
|
---|
2997 | return rc;
|
---|
2998 | }
|
---|
2999 |
|
---|
3000 | /**
|
---|
3001 | * Creates a worker for specified queue, along with semaphore to throttle the worker.
|
---|
3002 | *
|
---|
3003 | * @param pDevIns - PDM device instance
|
---|
3004 | * @param pThis - virtio-net instance
|
---|
3005 | * @param pWorker - Pointer to worker state
|
---|
3006 | * @param pWorkerR3 - Pointer to worker state
|
---|
3007 | * @param pVirtq - Pointer to virtq
|
---|
3008 | */
|
---|
3009 | static int virtioNetR3CreateOneWorkerThread(PPDMDEVINS pDevIns, PVIRTIONET pThis,
|
---|
3010 | PVIRTIONETWORKER pWorker, PVIRTIONETWORKERR3 pWorkerR3,
|
---|
3011 | PVIRTIONETVIRTQ pVirtq)
|
---|
3012 | {
|
---|
3013 | Log10Func(("[%s]\n", pThis->szInst));
|
---|
3014 | RT_NOREF(pThis);
|
---|
3015 |
|
---|
3016 | int rc = PDMDevHlpSUPSemEventCreate(pDevIns, &pWorker->hEvtProcess);
|
---|
3017 |
|
---|
3018 | if (RT_FAILURE(rc))
|
---|
3019 | return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
|
---|
3020 | N_("DevVirtioNET: Failed to create SUP event semaphore"));
|
---|
3021 |
|
---|
3022 | LogFunc(("creating thread for queue %s\n", pVirtq->szName));
|
---|
3023 |
|
---|
3024 | rc = PDMDevHlpThreadCreate(pDevIns, &pWorkerR3->pThread,
|
---|
3025 | (void *)pWorker, virtioNetR3WorkerThread,
|
---|
3026 | virtioNetR3WakeupWorker, 0, RTTHREADTYPE_IO, pVirtq->szName);
|
---|
3027 | if (RT_FAILURE(rc))
|
---|
3028 | return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
|
---|
3029 | N_("Error creating thread for Virtual Virtq %s\n"), pVirtq->uIdx);
|
---|
3030 |
|
---|
3031 | pWorker->fAssigned = true; /* Because worker's state in fixed-size array initialized w/empty slots */
|
---|
3032 |
|
---|
3033 | LogFunc(("%s pThread: %p\n", pVirtq->szName, pWorkerR3->pThread));
|
---|
3034 |
|
---|
3035 | return rc;
|
---|
3036 | }
|
---|
3037 |
|
---|
3038 | static int virtioNetR3CreateWorkerThreads(PPDMDEVINS pDevIns, PVIRTIONET pThis, PVIRTIONETCC pThisCC)
|
---|
3039 | {
|
---|
3040 | Log10Func(("[%s]\n", pThis->szInst));
|
---|
3041 | int rc;
|
---|
3042 |
|
---|
3043 | /* Create the Control Queue worker anyway whether or not it is feature-negotiated or utilized by the guest.
|
---|
3044 | * See related comment for queue construction in the device constructor function for more context.
|
---|
3045 | */
|
---|
3046 |
|
---|
3047 | PVIRTIONETVIRTQ pCtlVirtq = &pThis->aVirtqs[CTRLQIDX];
|
---|
3048 | rc = virtioNetR3CreateOneWorkerThread(pDevIns, pThis,
|
---|
3049 | &pThis->aWorkers[CTRLQIDX], &pThisCC->aWorkers[CTRLQIDX], pCtlVirtq);
|
---|
3050 | AssertRCReturn(rc, rc);
|
---|
3051 |
|
---|
3052 | pCtlVirtq->fHasWorker = true;
|
---|
3053 |
|
---|
3054 | for (uint16_t uVirtqPair = pThis->cInitializedVirtqPairs; uVirtqPair < pThis->cVirtqPairs; uVirtqPair++)
|
---|
3055 | {
|
---|
3056 | PVIRTIONETVIRTQ pTxVirtq = &pThis->aVirtqs[TXQIDX(uVirtqPair)];
|
---|
3057 | PVIRTIONETVIRTQ pRxVirtq = &pThis->aVirtqs[RXQIDX(uVirtqPair)];
|
---|
3058 |
|
---|
3059 | rc = virtioNetR3CreateOneWorkerThread(pDevIns, pThis, &pThis->aWorkers[TXQIDX(uVirtqPair)],
|
---|
3060 | &pThisCC->aWorkers[TXQIDX(uVirtqPair)], pTxVirtq);
|
---|
3061 | AssertRCReturn(rc, rc);
|
---|
3062 |
|
---|
3063 | pTxVirtq->fHasWorker = true;
|
---|
3064 | pRxVirtq->fHasWorker = false;
|
---|
3065 | }
|
---|
3066 |
|
---|
3067 | if (pThis->cVirtqPairs > pThis->cInitializedVirtqPairs)
|
---|
3068 | pThis->cInitializedVirtqPairs = pThis->cVirtqPairs;
|
---|
3069 |
|
---|
3070 | pThis->cWorkers = pThis->cVirtqPairs + 1 /* One control virtq */;
|
---|
3071 |
|
---|
3072 | return rc;
|
---|
3073 | }
|
---|
3074 |
|
---|
3075 |
|
---|
3076 | /**
|
---|
3077 | * @callback_method_impl{FNPDMTHREADDEV}
|
---|
3078 | */
|
---|
3079 | static DECLCALLBACK(int) virtioNetR3WorkerThread(PPDMDEVINS pDevIns, PPDMTHREAD pThread)
|
---|
3080 | {
|
---|
3081 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
3082 | PVIRTIONETCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVIRTIONETCC);
|
---|
3083 | PVIRTIONETWORKER pWorker = (PVIRTIONETWORKER)pThread->pvUser;
|
---|
3084 | PVIRTIONETVIRTQ pVirtq = &pThis->aVirtqs[pWorker->uIdx];
|
---|
3085 | uint16_t uIdx = pWorker->uIdx;
|
---|
3086 |
|
---|
3087 | ASMAtomicWriteBool(&pWorker->fSleeping, false);
|
---|
3088 |
|
---|
3089 | Assert(pWorker->uIdx == pVirtq->uIdx);
|
---|
3090 |
|
---|
3091 | if (pThread->enmState == PDMTHREADSTATE_INITIALIZING)
|
---|
3092 | return VINF_SUCCESS;
|
---|
3093 |
|
---|
3094 | LogFunc(("[%s] worker thread idx=%d started for %s (virtq idx=%d)\n", pThis->szInst, pWorker->uIdx, pVirtq->szName, pVirtq->uIdx));
|
---|
3095 |
|
---|
3096 | /** @todo Race w/guest enabling/disabling guest notifications cyclically.
|
---|
3097 | See BugRef #8651, Comment #82 */
|
---|
3098 | virtioCoreVirtqEnableNotify(&pThis->Virtio, uIdx, true /* fEnable */);
|
---|
3099 |
|
---|
3100 | while ( pThread->enmState != PDMTHREADSTATE_TERMINATING
|
---|
3101 | && pThread->enmState != PDMTHREADSTATE_TERMINATED)
|
---|
3102 | {
|
---|
3103 | if (IS_VIRTQ_EMPTY(pDevIns, &pThis->Virtio, pVirtq->uIdx))
|
---|
3104 | {
|
---|
3105 | /* Precisely coordinated atomic interlocks avoid a race condition that results in hung thread
|
---|
3106 | * wherein a sloppily coordinated wake-up notification during a transition into or out
|
---|
3107 | * of sleep leaves notifier and target mutually confused about actual & intended state.
|
---|
3108 | */
|
---|
3109 | ASMAtomicWriteBool(&pWorker->fSleeping, true);
|
---|
3110 | bool fNotificationSent = ASMAtomicXchgBool(&pWorker->fNotified, false);
|
---|
3111 | if (!fNotificationSent)
|
---|
3112 | {
|
---|
3113 | Log10Func(("[%s] %s worker sleeping...\n\n", pThis->szInst, pVirtq->szName));
|
---|
3114 | Assert(ASMAtomicReadBool(&pWorker->fSleeping));
|
---|
3115 |
|
---|
3116 | int rc = PDMDevHlpSUPSemEventWaitNoResume(pDevIns, pWorker->hEvtProcess, RT_INDEFINITE_WAIT);
|
---|
3117 | STAM_COUNTER_INC(&pThis->StatTransmitByThread);
|
---|
3118 | AssertLogRelMsgReturn(RT_SUCCESS(rc) || rc == VERR_INTERRUPTED, ("%Rrc\n", rc), rc);
|
---|
3119 | if (RT_UNLIKELY(pThread->enmState != PDMTHREADSTATE_RUNNING))
|
---|
3120 | return VINF_SUCCESS;
|
---|
3121 | if (rc == VERR_INTERRUPTED)
|
---|
3122 | continue;
|
---|
3123 | ASMAtomicWriteBool(&pWorker->fNotified, false);
|
---|
3124 | }
|
---|
3125 | ASMAtomicWriteBool(&pWorker->fSleeping, false);
|
---|
3126 | }
|
---|
3127 | /*
|
---|
3128 | * Dispatch to the handler for the queue this worker is set up to drive
|
---|
3129 | */
|
---|
3130 | if (pVirtq->fCtlVirtq)
|
---|
3131 | {
|
---|
3132 | Log10Func(("[%s] %s worker woken. Fetching desc chain\n", pThis->szInst, pVirtq->szName));
|
---|
3133 | VIRTQBUF_T VirtqBuf;
|
---|
3134 | PVIRTQBUF pVirtqBuf = &VirtqBuf;
|
---|
3135 | int rc = virtioCoreR3VirtqAvailBufGet(pDevIns, &pThis->Virtio, pVirtq->uIdx, pVirtqBuf, true);
|
---|
3136 | if (rc == VERR_NOT_AVAILABLE)
|
---|
3137 | {
|
---|
3138 | Log10Func(("[%s] %s worker woken. Nothing found in queue\n", pThis->szInst, pVirtq->szName));
|
---|
3139 | continue;
|
---|
3140 | }
|
---|
3141 | virtioNetR3Ctrl(pDevIns, pThis, pThisCC, pVirtqBuf);
|
---|
3142 | }
|
---|
3143 | else /* Must be Tx queue */
|
---|
3144 | {
|
---|
3145 | Log10Func(("[%s] %s worker woken. Virtq has data to transmit\n", pThis->szInst, pVirtq->szName));
|
---|
3146 | virtioNetR3TransmitPkts(pDevIns, pThis, pThisCC, pVirtq, false /* fOnWorkerThread */);
|
---|
3147 | }
|
---|
3148 | /* Note: Surprise! Rx queues aren't handled by local worker threads. Instead, the PDM network leaf driver
|
---|
3149 | * invokes PDMINETWORKDOWN.pfnWaitReceiveAvail() callback, which waits until woken by virtioNetVirtqNotified()
|
---|
3150 | * indicating that guest IN buffers have been added to Rx virt queue.
|
---|
3151 | */
|
---|
3152 | }
|
---|
3153 | Log10(("[%s] %s worker thread exiting\n", pThis->szInst, pVirtq->szName));
|
---|
3154 | return VINF_SUCCESS;
|
---|
3155 | }
|
---|
3156 |
|
---|
3157 | /**
|
---|
3158 | * @callback_method_impl{VIRTIOCORER3,pfnStatusChanged}
|
---|
3159 | *
|
---|
3160 | * Called back by the core code when VirtIO's ready state has changed.
|
---|
3161 | */
|
---|
3162 | static DECLCALLBACK(void) virtioNetR3StatusChg(PVIRTIOCORE pVirtio, PVIRTIOCORECC pVirtioCC, uint32_t fVirtioReady)
|
---|
3163 | {
|
---|
3164 | PVIRTIONET pThis = RT_FROM_MEMBER(pVirtio, VIRTIONET, Virtio);
|
---|
3165 | PVIRTIONETCC pThisCC = RT_FROM_MEMBER(pVirtioCC, VIRTIONETCC, Virtio);
|
---|
3166 |
|
---|
3167 | pThis->fVirtioReady = fVirtioReady;
|
---|
3168 |
|
---|
3169 | if (fVirtioReady)
|
---|
3170 | {
|
---|
3171 | #ifdef LOG_ENABLED
|
---|
3172 | Log(("\n%-23s: %s *** VirtIO Ready ***\n\n", __FUNCTION__, pThis->szInst));
|
---|
3173 | virtioCorePrintDeviceFeatures(&pThis->Virtio, NULL, s_aDevSpecificFeatures, RT_ELEMENTS(s_aDevSpecificFeatures));
|
---|
3174 | #endif
|
---|
3175 | pThis->fResetting = false;
|
---|
3176 | pThis->fNegotiatedFeatures = virtioCoreGetNegotiatedFeatures(pVirtio);
|
---|
3177 | /* Now we can properly figure out the size of virtio header! */
|
---|
3178 | virtioNetConfigurePktHdr(pThis, pThis->Virtio.fLegacyDriver);
|
---|
3179 | pThis->virtioNetConfig.uStatus = pThis->fCableConnected ? VIRTIONET_F_LINK_UP : 0;
|
---|
3180 |
|
---|
3181 | for (unsigned uVirtqNbr = 0; uVirtqNbr < pThis->cVirtqs; uVirtqNbr++)
|
---|
3182 | {
|
---|
3183 | PVIRTIONETVIRTQ pVirtq = &pThis->aVirtqs[uVirtqNbr];
|
---|
3184 | PVIRTIONETWORKER pWorker = &pThis->aWorkers[uVirtqNbr];
|
---|
3185 |
|
---|
3186 | Assert(pWorker->uIdx == uVirtqNbr);
|
---|
3187 | RT_NOREF(pWorker);
|
---|
3188 |
|
---|
3189 | Assert(pVirtq->uIdx == pWorker->uIdx);
|
---|
3190 |
|
---|
3191 | (void) virtioCoreR3VirtqAttach(&pThis->Virtio, pVirtq->uIdx, pVirtq->szName);
|
---|
3192 | pVirtq->fAttachedToVirtioCore = true;
|
---|
3193 | if (IS_VIRTQ_EMPTY(pThisCC->pDevIns, &pThis->Virtio, pVirtq->uIdx))
|
---|
3194 | virtioCoreVirtqEnableNotify(&pThis->Virtio, pVirtq->uIdx, true /* fEnable */);
|
---|
3195 | }
|
---|
3196 |
|
---|
3197 | virtioNetWakeupRxBufWaiter(pThisCC->pDevIns);
|
---|
3198 | }
|
---|
3199 | else
|
---|
3200 | {
|
---|
3201 | Log(("\n%-23s: %s VirtIO is resetting ***\n", __FUNCTION__, pThis->szInst));
|
---|
3202 |
|
---|
3203 | pThis->virtioNetConfig.uStatus = pThis->fCableConnected ? VIRTIONET_F_LINK_UP : 0;
|
---|
3204 | Log7(("%-23s: %s Link is %s\n", __FUNCTION__, pThis->szInst, pThis->fCableConnected ? "up" : "down"));
|
---|
3205 |
|
---|
3206 | pThis->fPromiscuous = true;
|
---|
3207 | pThis->fAllMulticast = false;
|
---|
3208 | pThis->fAllUnicast = false;
|
---|
3209 | pThis->fNoMulticast = false;
|
---|
3210 | pThis->fNoUnicast = false;
|
---|
3211 | pThis->fNoBroadcast = false;
|
---|
3212 | pThis->uIsTransmitting = 0;
|
---|
3213 | pThis->cUnicastFilterMacs = 0;
|
---|
3214 | pThis->cMulticastFilterMacs = 0;
|
---|
3215 |
|
---|
3216 | memset(pThis->aMacMulticastFilter, 0, sizeof(pThis->aMacMulticastFilter));
|
---|
3217 | memset(pThis->aMacUnicastFilter, 0, sizeof(pThis->aMacUnicastFilter));
|
---|
3218 | memset(pThis->aVlanFilter, 0, sizeof(pThis->aVlanFilter));
|
---|
3219 |
|
---|
3220 | if (pThisCC->pDrv)
|
---|
3221 | pThisCC->pDrv->pfnSetPromiscuousMode(pThisCC->pDrv, true);
|
---|
3222 |
|
---|
3223 | for (uint16_t uVirtqNbr = 0; uVirtqNbr < pThis->cVirtqs; uVirtqNbr++)
|
---|
3224 | {
|
---|
3225 | virtioCoreR3VirtqDetach(&pThis->Virtio, uVirtqNbr);
|
---|
3226 | pThis->aVirtqs[uVirtqNbr].fAttachedToVirtioCore = false;
|
---|
3227 | }
|
---|
3228 | }
|
---|
3229 | }
|
---|
3230 |
|
---|
3231 | /**
|
---|
3232 | * @callback_method_impl{VIRTIOCORER3,pfnFeatureNegotiationComplete}
|
---|
3233 | */
|
---|
3234 | static DECLCALLBACK(void) pfnFeatureNegotiationComplete(PVIRTIOCORE pVirtio, uint64_t fDriverFeatures, uint32_t fLegacy)
|
---|
3235 | {
|
---|
3236 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pVirtio->pDevInsR3, PVIRTIONET);
|
---|
3237 |
|
---|
3238 | LogFunc(("[Feature Negotiation Complete] Guest Driver version is: %s\n", fLegacy ? "legacy" : "modern"));
|
---|
3239 | virtioNetConfigurePktHdr(pThis, fLegacy);
|
---|
3240 | virtioNetR3SetVirtqNames(pThis, fLegacy);
|
---|
3241 |
|
---|
3242 | /** @todo r=aeichner We can't just destroy the control queue here because the UEFI firmware and the guest OS might have different
|
---|
3243 | * opinions on how to use the device and if the UEFI firmware causes the control queue to be destroyed Linux guests
|
---|
3244 | * will have a hard time using it. */
|
---|
3245 | #if 0
|
---|
3246 | /* Senseless for modern guest to use control queue in this case. (See Note 1 in PDM-invoked device constructor) */
|
---|
3247 | if (!fLegacy && !(fDriverFeatures & VIRTIONET_F_CTRL_VQ))
|
---|
3248 | virtioNetR3VirtqDestroy(pVirtio, &pThis->aVirtqs[CTRLQIDX]);
|
---|
3249 | #else
|
---|
3250 | RT_NOREF(fDriverFeatures);
|
---|
3251 | #endif
|
---|
3252 | }
|
---|
3253 |
|
---|
3254 | #endif /* IN_RING3 */
|
---|
3255 |
|
---|
3256 | /**
|
---|
3257 | * @interface_method_impl{PDMDEVREGR3,pfnDetach}
|
---|
3258 | *
|
---|
3259 | * The VM is suspended at this point.
|
---|
3260 | */
|
---|
3261 | static DECLCALLBACK(void) virtioNetR3Detach(PPDMDEVINS pDevIns, unsigned iLUN, uint32_t fFlags)
|
---|
3262 | {
|
---|
3263 | RT_NOREF(fFlags);
|
---|
3264 |
|
---|
3265 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
3266 | PVIRTIONETCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVIRTIONETCC);
|
---|
3267 |
|
---|
3268 | Log7Func(("[%s]\n", pThis->szInst));
|
---|
3269 | RT_NOREF(pThis);
|
---|
3270 |
|
---|
3271 | AssertLogRelReturnVoid(iLUN == 0);
|
---|
3272 |
|
---|
3273 | pThisCC->pDrvBase = NULL;
|
---|
3274 | pThisCC->pDrv = NULL;
|
---|
3275 | }
|
---|
3276 |
|
---|
3277 | /**
|
---|
3278 | * @interface_method_impl{PDMDEVREGR3,pfnAttach}
|
---|
3279 | *
|
---|
3280 | * This is called when we change block driver.
|
---|
3281 | */
|
---|
3282 | static DECLCALLBACK(int) virtioNetR3Attach(PPDMDEVINS pDevIns, unsigned iLUN, uint32_t fFlags)
|
---|
3283 | {
|
---|
3284 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
3285 | PVIRTIONETCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVIRTIONETCC);
|
---|
3286 |
|
---|
3287 | Log7Func(("[%s]", pThis->szInst));
|
---|
3288 | AssertLogRelReturn(iLUN == 0, VERR_PDM_NO_SUCH_LUN);
|
---|
3289 |
|
---|
3290 | int rc = PDMDevHlpDriverAttach(pDevIns, 0, &pThisCC->IBase, &pThisCC->pDrvBase, "Network Port");
|
---|
3291 | if (RT_SUCCESS(rc))
|
---|
3292 | {
|
---|
3293 | pThisCC->pDrv = PDMIBASE_QUERY_INTERFACE(pThisCC->pDrvBase, PDMINETWORKUP);
|
---|
3294 | AssertMsgStmt(pThisCC->pDrv, ("Failed to obtain the PDMINETWORKUP interface!\n"),
|
---|
3295 | rc = VERR_PDM_MISSING_INTERFACE_BELOW);
|
---|
3296 | }
|
---|
3297 | else if ( rc == VERR_PDM_NO_ATTACHED_DRIVER
|
---|
3298 | || rc == VERR_PDM_CFG_MISSING_DRIVER_NAME)
|
---|
3299 | {
|
---|
3300 | /* This should never happen because this function is not called
|
---|
3301 | * if there is no driver to attach! */
|
---|
3302 | Log(("[%s] No attached driver!\n", pThis->szInst));
|
---|
3303 | }
|
---|
3304 |
|
---|
3305 | RT_NOREF2(pThis, fFlags);
|
---|
3306 | return rc;
|
---|
3307 | }
|
---|
3308 |
|
---|
3309 | /**
|
---|
3310 | * @interface_method_impl{PDMILEDPORTS,pfnQueryStatusLed}
|
---|
3311 | */
|
---|
3312 | static DECLCALLBACK(int) virtioNetR3QueryStatusLed(PPDMILEDPORTS pInterface, unsigned iLUN, PPDMLED *ppLed)
|
---|
3313 | {
|
---|
3314 | PVIRTIONETR3 pThisR3 = RT_FROM_MEMBER(pInterface, VIRTIONETR3, ILeds);
|
---|
3315 | if (iLUN)
|
---|
3316 | return VERR_PDM_LUN_NOT_FOUND;
|
---|
3317 | *ppLed = &pThisR3->led;
|
---|
3318 | return VINF_SUCCESS;
|
---|
3319 | }
|
---|
3320 |
|
---|
3321 | /**
|
---|
3322 | * @interface_method_impl{PDMIBASE,pfnQueryInterface}
|
---|
3323 | */
|
---|
3324 | static DECLCALLBACK(void *) virtioNetR3QueryInterface(struct PDMIBASE *pInterface, const char *pszIID)
|
---|
3325 | {
|
---|
3326 | PVIRTIONETR3 pThisCC = RT_FROM_MEMBER(pInterface, VIRTIONETCC, IBase);
|
---|
3327 | PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKDOWN, &pThisCC->INetworkDown);
|
---|
3328 | PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKCONFIG, &pThisCC->INetworkConfig);
|
---|
3329 | PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pThisCC->IBase);
|
---|
3330 | PDMIBASE_RETURN_INTERFACE(pszIID, PDMILEDPORTS, &pThisCC->ILeds);
|
---|
3331 | return NULL;
|
---|
3332 | }
|
---|
3333 |
|
---|
3334 | /**
|
---|
3335 | * @interface_method_impl{PDMDEVREGR3,pfnReset}
|
---|
3336 | */
|
---|
3337 | static DECLCALLBACK(void) virtioNetR3Reset(PPDMDEVINS pDevIns)
|
---|
3338 | {
|
---|
3339 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
3340 | PVIRTIONETCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVIRTIONETCC);
|
---|
3341 |
|
---|
3342 | virtioCoreR3ResetDevice(pDevIns, &pThis->Virtio, &pThisCC->Virtio);
|
---|
3343 | }
|
---|
3344 |
|
---|
3345 | /**
|
---|
3346 | * @interface_method_impl{PDMDEVREGR3,pfnDestruct}
|
---|
3347 | */
|
---|
3348 | static DECLCALLBACK(int) virtioNetR3Destruct(PPDMDEVINS pDevIns)
|
---|
3349 | {
|
---|
3350 | PDMDEV_CHECK_VERSIONS_RETURN_QUIET(pDevIns);
|
---|
3351 |
|
---|
3352 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
3353 | PVIRTIONETCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVIRTIONETCC);
|
---|
3354 |
|
---|
3355 | Log(("[%s] Destroying instance\n", pThis->szInst));
|
---|
3356 | if (pThis->hEventRxDescAvail != NIL_SUPSEMEVENT)
|
---|
3357 | {
|
---|
3358 | PDMDevHlpSUPSemEventSignal(pDevIns, pThis->hEventRxDescAvail);
|
---|
3359 | PDMDevHlpSUPSemEventClose(pDevIns, pThis->hEventRxDescAvail);
|
---|
3360 | pThis->hEventRxDescAvail = NIL_SUPSEMEVENT;
|
---|
3361 | }
|
---|
3362 |
|
---|
3363 | virtioNetR3DestroyWorkerThreads(pDevIns, pThis, pThisCC);
|
---|
3364 | virtioCoreR3Term(pDevIns, &pThis->Virtio, &pThisCC->Virtio);
|
---|
3365 | return VINF_SUCCESS;
|
---|
3366 | }
|
---|
3367 |
|
---|
3368 | /**
|
---|
3369 | * @interface_method_impl{PDMDEVREGR3,pfnConstruct}
|
---|
3370 | *
|
---|
3371 | * Notes about revising originally VirtIO 1.0+ only virtio-net device emulator to be "transitional",
|
---|
3372 | * a VirtIO term meaning this now interoperates with both "legacy" (e.g. pre-1.0) and "modern" (1.0+)
|
---|
3373 | * guest virtio-net drivers. The changes include migrating VMs saved using prior DevVirtioNet.cpp (0.95)
|
---|
3374 | * saveExec/loadExec semantics to use 1.0 save/load semantics.
|
---|
3375 | *
|
---|
3376 | * Regardless of the 1.0 spec's overall helpful guidance for implementing transitional devices,
|
---|
3377 | * A bit is left to the imagination, e.g. some things have to be determined deductively
|
---|
3378 | * (AKA "the hard way").
|
---|
3379 | *
|
---|
3380 | * Case in point: According to VirtIO 0.95 ("legacy") specification, section 2.2.1, "historically"
|
---|
3381 | * drivers may start driving prior to feature negotiation and prior to drivers setting DRIVER_OK
|
---|
3382 | * status, "provided driver doesn't use features that alter early use of this device". Interpreted
|
---|
3383 | * here to mean a virtio-net driver must respect default settings (such as implicit pkt header default
|
---|
3384 | * size, as determined per Note 1 below).
|
---|
3385 | *
|
---|
3386 | * ----------------------------------------------------------------------------------------------
|
---|
3387 | * Transitional device initialization Note 1: Identifying default value for network Rx pkt hdr size.
|
---|
3388 | * (VirtIO 1.0 specification section 5.1.6.1)
|
---|
3389 | *
|
---|
3390 | * Guest virtio legacy drivers may begin operations prematurely, regardless of early spec's
|
---|
3391 | * initialization sequence (see note 2 below). Legacy drivers implicitly default to using the
|
---|
3392 | * (historically) shortest-length network packet header *unless* VIRTIONET_F_MRG_RXBUF feature is
|
---|
3393 | * negotiated. If feature negotiation phase is [optionally] enacted by a legacy guest (i.e. we strictly
|
---|
3394 | * enforce full initialization protocol for modern guests), virtioNetConfigurePktHdr() is invoked again to
|
---|
3395 | * finalize device's network packet header size. Best-guess at default packet header size is deduced, e.g.
|
---|
3396 | * isn't documented, as follows: A legacy guest with VIRTIONET_F_MRG_RXBUF not-yet-negotiated is the only
|
---|
3397 | * case where network I/O could possibly occur with any reasonable assumption about packet type/size,
|
---|
3398 | * because logically other permutations couldn't possibly be inferred until feature negotiation
|
---|
3399 | * is complete. Specifically, those cases are:
|
---|
3400 | *
|
---|
3401 | * 1. A modern driver (detected only when VIRTIONET_F_VERSION_1 feature is ack'd by guest, and,
|
---|
3402 | * simultaneously, VIRTIONET_F_MRG_RXBUF feature is accepted or declined (determining network receive-packet
|
---|
3403 | * processing behavior).
|
---|
3404 | *
|
---|
3405 | * 2. A legacy driver that has agreed to use VIRTIONET_F_MRG_RXBUF feature, resulting in a two-byte larger pkt hdr,
|
---|
3406 | * (as well as deciding Rx packet processing behavior).
|
---|
3407 | *
|
---|
3408 | * ----------------------------------------------------------------------------------------------
|
---|
3409 | * Transitional device initialization Note 2: Creating unnegotiated control queue.
|
---|
3410 | * (VirtIO 1.0 spec, sections 5.1.5 and 5.1.6.5)
|
---|
3411 | *
|
---|
3412 | * Create all queues immediately, prior to feature negotiation, including control queue (irrespective
|
---|
3413 | * of the fact it's too early in initialization for control feature to be approved by guest). This
|
---|
3414 | * transitional device must deal with legacy guests which *can* (and on linux have been seen to) use
|
---|
3415 | * the control queue prior to feature negotiation.
|
---|
3416 | *
|
---|
3417 | * The initial assumption is *modern" guest virtio-net drivers out in the wild could never reasonably
|
---|
3418 | * attempt something as obviously risky as using ctrlq without first acking VIRTIO_NET_F_CTRL_VQ
|
---|
3419 | * feature to establish it. For now, we create the control queue proactively to accomodate a potentially
|
---|
3420 | * badly behaved but officially sanctioned legacy virtio-net driver, but *destroy* that same queue
|
---|
3421 | * if a driver announces as 'modern' during feature finalization yet leaves VIRTIO_NET_F_CTRL_VQ un-ack'd.
|
---|
3422 | */
|
---|
3423 | static DECLCALLBACK(int) virtioNetR3Construct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
|
---|
3424 | {
|
---|
3425 | PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
|
---|
3426 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
3427 | PVIRTIONETCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVIRTIONETCC);
|
---|
3428 | PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
|
---|
3429 |
|
---|
3430 | /*
|
---|
3431 | * Quickly initialize state data to ensure destructor always works.
|
---|
3432 | */
|
---|
3433 | Log7Func(("PDM device instance: %d\n", iInstance));
|
---|
3434 | RTStrPrintf(pThis->szInst, sizeof(pThis->szInst), "virtio-net #%d", iInstance);
|
---|
3435 |
|
---|
3436 | pThisCC->pDevIns = pDevIns;
|
---|
3437 | pThisCC->IBase.pfnQueryInterface = virtioNetR3QueryInterface;
|
---|
3438 | pThisCC->ILeds.pfnQueryStatusLed = virtioNetR3QueryStatusLed;
|
---|
3439 | pThisCC->led.u32Magic = PDMLED_MAGIC;
|
---|
3440 |
|
---|
3441 | /* Interfaces */
|
---|
3442 | pThisCC->INetworkDown.pfnWaitReceiveAvail = virtioNetR3NetworkDown_WaitReceiveAvail;
|
---|
3443 | pThisCC->INetworkDown.pfnReceive = virtioNetR3NetworkDown_Receive;
|
---|
3444 | pThisCC->INetworkDown.pfnReceiveGso = virtioNetR3NetworkDown_ReceiveGso;
|
---|
3445 | pThisCC->INetworkDown.pfnXmitPending = virtioNetR3NetworkDown_XmitPending;
|
---|
3446 | pThisCC->INetworkConfig.pfnGetMac = virtioNetR3NetworkConfig_GetMac;
|
---|
3447 | pThisCC->INetworkConfig.pfnGetLinkState = virtioNetR3NetworkConfig_GetLinkState;
|
---|
3448 | pThisCC->INetworkConfig.pfnSetLinkState = virtioNetR3NetworkConfig_SetLinkState;
|
---|
3449 |
|
---|
3450 | pThis->hEventRxDescAvail = NIL_SUPSEMEVENT;
|
---|
3451 |
|
---|
3452 | /*
|
---|
3453 | * Validate configuration.
|
---|
3454 | */
|
---|
3455 | PDMDEV_VALIDATE_CONFIG_RETURN(pDevIns, "MAC"
|
---|
3456 | "|CableConnected"
|
---|
3457 | "|LineSpeed"
|
---|
3458 | "|LinkUpDelay"
|
---|
3459 | "|StatNo"
|
---|
3460 | "|Legacy"
|
---|
3461 | "|MmioBase"
|
---|
3462 | "|Irq", "");
|
---|
3463 |
|
---|
3464 | /* Get config params */
|
---|
3465 | int rc = pHlp->pfnCFGMQueryBytes(pCfg, "MAC", pThis->macConfigured.au8, sizeof(pThis->macConfigured));
|
---|
3466 | if (RT_FAILURE(rc))
|
---|
3467 | return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to get MAC address"));
|
---|
3468 |
|
---|
3469 | rc = pHlp->pfnCFGMQueryBool(pCfg, "CableConnected", &pThis->fCableConnected);
|
---|
3470 | if (RT_FAILURE(rc))
|
---|
3471 | return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to get the value of 'CableConnected'"));
|
---|
3472 |
|
---|
3473 | uint32_t uStatNo = iInstance;
|
---|
3474 | rc = pHlp->pfnCFGMQueryU32Def(pCfg, "StatNo", &uStatNo, iInstance);
|
---|
3475 | if (RT_FAILURE(rc))
|
---|
3476 | return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to get the \"StatNo\" value"));
|
---|
3477 |
|
---|
3478 | rc = pHlp->pfnCFGMQueryU32Def(pCfg, "LinkUpDelay", &pThis->cMsLinkUpDelay, 5000); /* ms */
|
---|
3479 | if (RT_FAILURE(rc))
|
---|
3480 | return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to get the value of 'LinkUpDelay'"));
|
---|
3481 |
|
---|
3482 | Assert(pThis->cMsLinkUpDelay <= 300000); /* less than 5 minutes */
|
---|
3483 |
|
---|
3484 | if (pThis->cMsLinkUpDelay > 5000 || pThis->cMsLinkUpDelay < 100)
|
---|
3485 | LogRel(("%s WARNING! Link up delay is set to %u seconds!\n",
|
---|
3486 | pThis->szInst, pThis->cMsLinkUpDelay / 1000));
|
---|
3487 |
|
---|
3488 | Log(("[%s] Link up delay is set to %u seconds\n", pThis->szInst, pThis->cMsLinkUpDelay / 1000));
|
---|
3489 |
|
---|
3490 | /* Copy the MAC address configured for the VM to the MMIO accessible Virtio dev-specific config area */
|
---|
3491 | memcpy(pThis->virtioNetConfig.uMacAddress.au8, pThis->macConfigured.au8, sizeof(pThis->virtioNetConfig.uMacAddress)); /* TBD */
|
---|
3492 |
|
---|
3493 | Log(("Using MAC address for %s: %2x:%2x:%2x:%2x:%2x:%2x\n", pThis->szInst,
|
---|
3494 | pThis->macConfigured.au8[0], pThis->macConfigured.au8[1], pThis->macConfigured.au8[2],
|
---|
3495 | pThis->macConfigured.au8[3], pThis->macConfigured.au8[4], pThis->macConfigured.au8[5]));
|
---|
3496 |
|
---|
3497 | LogFunc(("RC=%RTbool R0=%RTbool\n", pDevIns->fRCEnabled, pDevIns->fR0Enabled));
|
---|
3498 |
|
---|
3499 | /*
|
---|
3500 | * Configure Virtio core (generic Virtio queue and infrastructure management) parameters.
|
---|
3501 | */
|
---|
3502 | # if FEATURE_OFFERED(STATUS)
|
---|
3503 | pThis->virtioNetConfig.uStatus = 0;
|
---|
3504 | # endif
|
---|
3505 |
|
---|
3506 | pThis->virtioNetConfig.uMaxVirtqPairs = VIRTIONET_MAX_QPAIRS;
|
---|
3507 | pThisCC->Virtio.pfnFeatureNegotiationComplete = pfnFeatureNegotiationComplete;
|
---|
3508 | pThisCC->Virtio.pfnVirtqNotified = virtioNetVirtqNotified;
|
---|
3509 | pThisCC->Virtio.pfnStatusChanged = virtioNetR3StatusChg;
|
---|
3510 | pThisCC->Virtio.pfnDevCapRead = virtioNetR3DevCapRead;
|
---|
3511 | pThisCC->Virtio.pfnDevCapWrite = virtioNetR3DevCapWrite;
|
---|
3512 |
|
---|
3513 | VIRTIOPCIPARAMS VirtioPciParams;
|
---|
3514 | VirtioPciParams.uDeviceId = PCI_DEVICE_ID_VIRTIONET_HOST;
|
---|
3515 | VirtioPciParams.uClassBase = VBOX_PCI_CLASS_NETWORK;
|
---|
3516 | VirtioPciParams.uClassSub = VBOX_PCI_SUB_NETWORK_ETHERNET;
|
---|
3517 | VirtioPciParams.uClassProg = PCI_CLASS_PROG_UNSPECIFIED;
|
---|
3518 | VirtioPciParams.uSubsystemId = DEVICE_PCI_NETWORK_SUBSYSTEM; /* VirtIO 1.0 allows PCI Device ID here */
|
---|
3519 | VirtioPciParams.uInterruptLine = 0x00;
|
---|
3520 | VirtioPciParams.uInterruptPin = 0x01;
|
---|
3521 | VirtioPciParams.uDeviceType = VIRTIO_DEVICE_TYPE_NETWORK;
|
---|
3522 |
|
---|
3523 | /* Create semaphore used to synchronize/throttle the downstream LUN's Rx waiter thread. */
|
---|
3524 | rc = PDMDevHlpSUPSemEventCreate(pDevIns, &pThis->hEventRxDescAvail);
|
---|
3525 | if (RT_FAILURE(rc))
|
---|
3526 | return PDMDEV_SET_ERROR(pDevIns, rc, N_("Failed to create event semaphore"));
|
---|
3527 |
|
---|
3528 | pThis->fOfferLegacy = VIRTIONET_TRANSITIONAL_ENABLE_FLAG;
|
---|
3529 | virtioNetConfigurePktHdr(pThis, pThis->fOfferLegacy); /* set defaults */
|
---|
3530 |
|
---|
3531 | /* Initialize VirtIO core. (*pfnStatusChanged)() callback occurs when both host VirtIO core & guest driver are ready) */
|
---|
3532 | rc = virtioCoreR3Init(pDevIns, &pThis->Virtio, &pThisCC->Virtio, &VirtioPciParams, pThis->szInst,
|
---|
3533 | VIRTIONET_HOST_FEATURES_OFFERED, pThis->fOfferLegacy,
|
---|
3534 | &pThis->virtioNetConfig /*pvDevSpecificCap*/, sizeof(pThis->virtioNetConfig));
|
---|
3535 | if (RT_FAILURE(rc))
|
---|
3536 | return PDMDEV_SET_ERROR(pDevIns, rc, N_("virtio-net: failed to initialize VirtIO"));
|
---|
3537 |
|
---|
3538 | pThis->fNegotiatedFeatures = virtioCoreGetNegotiatedFeatures(&pThis->Virtio);
|
---|
3539 | /** @todo validating features at this point is most probably pointless, as the negotiation hasn't started yet. */
|
---|
3540 | if (!virtioNetValidateRequiredFeatures(pThis->fNegotiatedFeatures))
|
---|
3541 | return PDMDEV_SET_ERROR(pDevIns, rc, N_("virtio-net: Required features not successfully negotiated."));
|
---|
3542 | pThis->cVirtqPairs = pThis->virtioNetConfig.uMaxVirtqPairs;
|
---|
3543 | pThis->cVirtqs += pThis->cVirtqPairs * 2 + 1;
|
---|
3544 | pThis->aVirtqs[CTRLQIDX].fCtlVirtq = true;
|
---|
3545 |
|
---|
3546 | virtioNetR3SetVirtqNames(pThis, pThis->fOfferLegacy);
|
---|
3547 | for (unsigned uVirtqNbr = 0; uVirtqNbr < pThis->cVirtqs; uVirtqNbr++)
|
---|
3548 | {
|
---|
3549 | PVIRTIONETVIRTQ pVirtq = &pThis->aVirtqs[uVirtqNbr];
|
---|
3550 | PVIRTIONETWORKER pWorker = &pThis->aWorkers[uVirtqNbr];
|
---|
3551 | PVIRTIONETWORKERR3 pWorkerR3 = &pThisCC->aWorkers[uVirtqNbr];
|
---|
3552 | pVirtq->uIdx = pWorker->uIdx = pWorkerR3->uIdx = uVirtqNbr;
|
---|
3553 | }
|
---|
3554 | /*
|
---|
3555 | * Create queue workers for life of instance. (I.e. they persist through VirtIO bounces)
|
---|
3556 | */
|
---|
3557 | rc = virtioNetR3CreateWorkerThreads(pDevIns, pThis, pThisCC);
|
---|
3558 | if (RT_FAILURE(rc))
|
---|
3559 | return PDMDEV_SET_ERROR(pDevIns, rc, N_("Failed to create worker threads"));
|
---|
3560 |
|
---|
3561 | /* Create Link Up Timer */
|
---|
3562 | rc = PDMDevHlpTimerCreate(pDevIns, TMCLOCK_VIRTUAL, virtioNetR3LinkUpTimer, NULL,
|
---|
3563 | TMTIMER_FLAGS_NO_CRIT_SECT | TMTIMER_FLAGS_NO_RING0,
|
---|
3564 | "VirtioNet Link Up", &pThisCC->hLinkUpTimer);
|
---|
3565 | /*
|
---|
3566 | * Attach network driver instance
|
---|
3567 | */
|
---|
3568 | rc = PDMDevHlpDriverAttach(pDevIns, 0, &pThisCC->IBase, &pThisCC->pDrvBase, "Network Port");
|
---|
3569 | if (RT_SUCCESS(rc))
|
---|
3570 | {
|
---|
3571 | pThisCC->pDrv = PDMIBASE_QUERY_INTERFACE(pThisCC->pDrvBase, PDMINETWORKUP);
|
---|
3572 | AssertMsgStmt(pThisCC->pDrv, ("Failed to obtain the PDMINETWORKUP interface!\n"),
|
---|
3573 | rc = VERR_PDM_MISSING_INTERFACE_BELOW);
|
---|
3574 | }
|
---|
3575 | else if ( rc == VERR_PDM_NO_ATTACHED_DRIVER
|
---|
3576 | || rc == VERR_PDM_CFG_MISSING_DRIVER_NAME)
|
---|
3577 | {
|
---|
3578 | /* No error! */
|
---|
3579 | Log(("[%s] No attached driver!\n", pThis->szInst));
|
---|
3580 | }
|
---|
3581 | else
|
---|
3582 | return PDMDEV_SET_ERROR(pDevIns, rc, N_("Failed to attach the network LUN"));
|
---|
3583 | /*
|
---|
3584 | * Status driver
|
---|
3585 | */
|
---|
3586 | PPDMIBASE pUpBase;
|
---|
3587 | rc = PDMDevHlpDriverAttach(pDevIns, PDM_STATUS_LUN, &pThisCC->IBase, &pUpBase, "Status Port");
|
---|
3588 | if (RT_SUCCESS(rc))
|
---|
3589 | pThisCC->pLedsConnector = PDMIBASE_QUERY_INTERFACE(pUpBase, PDMILEDCONNECTORS);
|
---|
3590 | else if (rc != VERR_PDM_NO_ATTACHED_DRIVER)
|
---|
3591 | return PDMDEV_SET_ERROR(pDevIns, rc, N_("Failed to attach the status LUN"));
|
---|
3592 |
|
---|
3593 | /*
|
---|
3594 | * Register saved state.
|
---|
3595 | */
|
---|
3596 | rc = PDMDevHlpSSMRegisterEx(pDevIns, VIRTIONET_SAVEDSTATE_VERSION, sizeof(*pThis), NULL,
|
---|
3597 | NULL, NULL, NULL, /** @todo r=aeichner Teleportation? */
|
---|
3598 | NULL, virtioNetR3ModernSaveExec, NULL,
|
---|
3599 | NULL, virtioNetR3ModernLoadExec, virtioNetR3ModernLoadDone);
|
---|
3600 | AssertRCReturn(rc, rc);
|
---|
3601 | /*
|
---|
3602 | * Statistics and debug stuff.
|
---|
3603 | * The /Public/ bits are official and used by session info in the GUI.
|
---|
3604 | */
|
---|
3605 | PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatReceiveBytes, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES,
|
---|
3606 | "Amount of data received", "/Public/NetAdapter/%u/BytesReceived", uStatNo);
|
---|
3607 | PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatTransmitBytes, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES,
|
---|
3608 | "Amount of data transmitted", "/Public/NetAdapter/%u/BytesTransmitted", uStatNo);
|
---|
3609 | PDMDevHlpSTAMRegisterF(pDevIns, &pDevIns->iInstance, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, STAMUNIT_NONE,
|
---|
3610 | "Device instance number", "/Public/NetAdapter/%u/%s", uStatNo, pDevIns->pReg->szName);
|
---|
3611 |
|
---|
3612 | PDMDevHlpSTAMRegister(pDevIns, &pThis->StatReceiveBytes, STAMTYPE_COUNTER, "ReceiveBytes", STAMUNIT_BYTES, "Amount of data received");
|
---|
3613 | PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTransmitBytes, STAMTYPE_COUNTER, "TransmitBytes", STAMUNIT_BYTES, "Amount of data transmitted");
|
---|
3614 | PDMDevHlpSTAMRegister(pDevIns, &pThis->StatReceiveGSO, STAMTYPE_COUNTER, "Packets/ReceiveGSO", STAMUNIT_COUNT, "Number of received GSO packets");
|
---|
3615 | PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTransmitPackets, STAMTYPE_COUNTER, "Packets/Transmit", STAMUNIT_COUNT, "Number of sent packets");
|
---|
3616 | PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTransmitGSO, STAMTYPE_COUNTER, "Packets/Transmit-Gso", STAMUNIT_COUNT, "Number of sent GSO packets");
|
---|
3617 | PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTransmitCSum, STAMTYPE_COUNTER, "Packets/Transmit-Csum", STAMUNIT_COUNT, "Number of completed TX checksums");
|
---|
3618 | # ifdef VBOX_WITH_STATISTICS
|
---|
3619 | PDMDevHlpSTAMRegister(pDevIns, &pThis->StatReceive, STAMTYPE_PROFILE, "Receive/Total", STAMUNIT_TICKS_PER_CALL, "Profiling receive");
|
---|
3620 | PDMDevHlpSTAMRegister(pDevIns, &pThis->StatReceiveStore, STAMTYPE_PROFILE, "Receive/Store", STAMUNIT_TICKS_PER_CALL, "Profiling receive storing");
|
---|
3621 | PDMDevHlpSTAMRegister(pDevIns, &pThis->StatRxOverflow, STAMTYPE_PROFILE, "RxOverflow", STAMUNIT_TICKS_PER_OCCURENCE, "Profiling RX overflows");
|
---|
3622 | PDMDevHlpSTAMRegister(pDevIns, &pThis->StatRxOverflowWakeup, STAMTYPE_COUNTER, "RxOverflowWakeup", STAMUNIT_OCCURENCES, "Nr of RX overflow wakeups");
|
---|
3623 | PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTransmit, STAMTYPE_PROFILE, "Transmit/Total", STAMUNIT_TICKS_PER_CALL, "Profiling transmits in HC");
|
---|
3624 | PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTransmitSend, STAMTYPE_PROFILE, "Transmit/Send", STAMUNIT_TICKS_PER_CALL, "Profiling send transmit in HC");
|
---|
3625 | PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTransmitByNetwork, STAMTYPE_COUNTER, "Transmit/ByNetwork", STAMUNIT_COUNT, "Network-initiated transmissions");
|
---|
3626 | PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTransmitByThread, STAMTYPE_COUNTER, "Transmit/ByThread", STAMUNIT_COUNT, "Thread-initiated transmissions");
|
---|
3627 | # endif
|
---|
3628 | /*
|
---|
3629 | * Register the debugger info callback (ignore errors).
|
---|
3630 | */
|
---|
3631 | char szTmp[128];
|
---|
3632 | rc = PDMDevHlpDBGFInfoRegister(pDevIns, "virtio-net", "Display virtio-net info (help, net, features, state, pointers, queues, all)", virtioNetR3Info);
|
---|
3633 | if (RT_FAILURE(rc))
|
---|
3634 | LogRel(("Failed to register DBGF info for device %s\n", szTmp));
|
---|
3635 | return rc;
|
---|
3636 | }
|
---|
3637 |
|
---|
3638 | #else /* !IN_RING3 */
|
---|
3639 |
|
---|
3640 | /**
|
---|
3641 | * @callback_method_impl{PDMDEVREGR0,pfnConstruct}
|
---|
3642 | */
|
---|
3643 | static DECLCALLBACK(int) virtioNetRZConstruct(PPDMDEVINS pDevIns)
|
---|
3644 | {
|
---|
3645 | PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
|
---|
3646 | PVIRTIONET pThis = PDMDEVINS_2_DATA(pDevIns, PVIRTIONET);
|
---|
3647 | PVIRTIONETCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PVIRTIONETCC);
|
---|
3648 | pThisCC->Virtio.pfnVirtqNotified = virtioNetVirtqNotified;
|
---|
3649 | return virtioCoreRZInit(pDevIns, &pThis->Virtio);
|
---|
3650 | }
|
---|
3651 |
|
---|
3652 | #endif /* !IN_RING3 */
|
---|
3653 |
|
---|
3654 | /**
|
---|
3655 | * The device registration structure.
|
---|
3656 | */
|
---|
3657 | const PDMDEVREG g_DeviceVirtioNet =
|
---|
3658 | {
|
---|
3659 | /* .uVersion = */ PDM_DEVREG_VERSION,
|
---|
3660 | /* .uReserved0 = */ 0,
|
---|
3661 | /* .szName = */ "virtio-net",
|
---|
3662 | /* .fFlags = */ PDM_DEVREG_FLAGS_DEFAULT_BITS | PDM_DEVREG_FLAGS_NEW_STYLE | PDM_DEVREG_FLAGS_RZ,
|
---|
3663 | /* .fClass = */ PDM_DEVREG_CLASS_NETWORK,
|
---|
3664 | /* .cMaxInstances = */ ~0U,
|
---|
3665 | /* .uSharedVersion = */ 42,
|
---|
3666 | /* .cbInstanceShared = */ sizeof(VIRTIONET),
|
---|
3667 | /* .cbInstanceCC = */ sizeof(VIRTIONETCC),
|
---|
3668 | /* .cbInstanceRC = */ sizeof(VIRTIONETRC),
|
---|
3669 | /* .cMaxPciDevices = */ 1,
|
---|
3670 | /* .cMaxMsixVectors = */ VBOX_MSIX_MAX_ENTRIES,
|
---|
3671 | /* .pszDescription = */ "Virtio Host NET.\n",
|
---|
3672 | #if defined(IN_RING3)
|
---|
3673 | /* .pszRCMod = */ "VBoxDDRC.rc",
|
---|
3674 | /* .pszR0Mod = */ "VBoxDDR0.r0",
|
---|
3675 | /* .pfnConstruct = */ virtioNetR3Construct,
|
---|
3676 | /* .pfnDestruct = */ virtioNetR3Destruct,
|
---|
3677 | /* .pfnRelocate = */ NULL,
|
---|
3678 | /* .pfnMemSetup = */ NULL,
|
---|
3679 | /* .pfnPowerOn = */ NULL,
|
---|
3680 | /* .pfnReset = */ virtioNetR3Reset,
|
---|
3681 | /* .pfnSuspend = */ virtioNetWakeupRxBufWaiter,
|
---|
3682 | /* .pfnResume = */ NULL,
|
---|
3683 | /* .pfnAttach = */ virtioNetR3Attach,
|
---|
3684 | /* .pfnDetach = */ virtioNetR3Detach,
|
---|
3685 | /* .pfnQueryInterface = */ NULL,
|
---|
3686 | /* .pfnInitComplete = */ NULL,
|
---|
3687 | /* .pfnPowerOff = */ virtioNetWakeupRxBufWaiter,
|
---|
3688 | /* .pfnSoftReset = */ NULL,
|
---|
3689 | /* .pfnReserved0 = */ NULL,
|
---|
3690 | /* .pfnReserved1 = */ NULL,
|
---|
3691 | /* .pfnReserved2 = */ NULL,
|
---|
3692 | /* .pfnReserved3 = */ NULL,
|
---|
3693 | /* .pfnReserved4 = */ NULL,
|
---|
3694 | /* .pfnReserved5 = */ NULL,
|
---|
3695 | /* .pfnReserved6 = */ NULL,
|
---|
3696 | /* .pfnReserved7 = */ NULL,
|
---|
3697 | #elif defined(IN_RING0)
|
---|
3698 | /* .pfnEarlyConstruct = */ NULL,
|
---|
3699 | /* .pfnConstruct = */ virtioNetRZConstruct,
|
---|
3700 | /* .pfnDestruct = */ NULL,
|
---|
3701 | /* .pfnFinalDestruct = */ NULL,
|
---|
3702 | /* .pfnRequest = */ NULL,
|
---|
3703 | /* .pfnReserved0 = */ NULL,
|
---|
3704 | /* .pfnReserved1 = */ NULL,
|
---|
3705 | /* .pfnReserved2 = */ NULL,
|
---|
3706 | /* .pfnReserved3 = */ NULL,
|
---|
3707 | /* .pfnReserved4 = */ NULL,
|
---|
3708 | /* .pfnReserved5 = */ NULL,
|
---|
3709 | /* .pfnReserved6 = */ NULL,
|
---|
3710 | /* .pfnReserved7 = */ NULL,
|
---|
3711 | #elif defined(IN_RC)
|
---|
3712 | /* .pfnConstruct = */ virtioNetRZConstruct,
|
---|
3713 | /* .pfnReserved0 = */ NULL,
|
---|
3714 | /* .pfnReserved1 = */ NULL,
|
---|
3715 | /* .pfnReserved2 = */ NULL,
|
---|
3716 | /* .pfnReserved3 = */ NULL,
|
---|
3717 | /* .pfnReserved4 = */ NULL,
|
---|
3718 | /* .pfnReserved5 = */ NULL,
|
---|
3719 | /* .pfnReserved6 = */ NULL,
|
---|
3720 | /* .pfnReserved7 = */ NULL,
|
---|
3721 | #else
|
---|
3722 | # error "Not in IN_RING3, IN_RING0 or IN_RC!"
|
---|
3723 | #endif
|
---|
3724 | /* .uVersionEnd = */ PDM_DEVREG_VERSION
|
---|
3725 | };
|
---|
3726 |
|
---|