projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 201cac0d LE |
1 | /** @file\r |
| 2 | \r | |
| 3 | Internal definitions for the virtio-net driver, which produces Simple Network\r | |
| 4 | Protocol instances for virtio-net devices.\r | |
| 5 | \r | |
| 6 | Copyright (C) 2013, Red Hat, Inc.\r | |
| 7 | \r | |
| 8 | This program and the accompanying materials are licensed and made available\r | |
| 9 | under the terms and conditions of the BSD License which accompanies this\r | |
| 10 | distribution. The full text of the license may be found at\r | |
| 11 | http://opensource.org/licenses/bsd-license.php\r | |
| 12 | \r | |
| 13 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT\r | |
| 14 | WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 15 | **/\r | |
| 16 | \r | |
| 17 | #ifndef _VIRTIO_NET_DXE_H_\r | |
| 18 | #define _VIRTIO_NET_DXE_H_\r | |
| 19 | \r | |
| 20 | #include <IndustryStandard/VirtioNet.h>\r | |
| 21 | #include <Library/DebugLib.h>\r | |
| 22 | #include <Library/VirtioLib.h>\r | |
| 23 | #include <Protocol/ComponentName.h>\r | |
| 24 | #include <Protocol/ComponentName2.h>\r | |
| 25 | #include <Protocol/DevicePath.h>\r | |
| 26 | #include <Protocol/DriverBinding.h>\r | |
| 27 | #include <Protocol/PciIo.h>\r | |
| 28 | #include <Protocol/SimpleNetwork.h>\r | |
| 29 | \r | |
| 30 | #define VNET_SIG SIGNATURE_32 ('V', 'N', 'E', 'T')\r | |
| 31 | \r | |
| 32 | //\r | |
| 33 | // maximum number of pending packets, separately for each direction\r | |
| 34 | //\r | |
| 35 | #define VNET_MAX_PENDING 64\r | |
| 36 | \r | |
| 37 | //\r | |
| 38 | // State diagram:\r | |
| 39 | //\r | |
| 40 | // | ^\r | |
| 41 | // | |\r | |
| 42 | // BindingStart BindingStop\r | |
| 43 | // +SnpPopulate |\r | |
| 44 | // ++GetFeatures |\r | |
| 45 | // | |\r | |
| 46 | // v |\r | |
| 47 | // +---------+ virtio-net device is reset, no resources are\r | |
| 48 | // | stopped | allocated for traffic, but MAC address has\r | |
| 49 | // +---------+ been retrieved\r | |
| 50 | // | ^\r | |
| 51 | // | |\r | |
| 52 | // SNP.Start SNP.Stop\r | |
| 53 | // | |\r | |
| 54 | // v |\r | |
| 55 | // +---------+\r | |
| 56 | // | started | functionally identical to stopped\r | |
| 57 | // +---------+\r | |
| 58 | // | ^\r | |
| 59 | // | |\r | |
| 60 | // SNP.Initialize SNP.Shutdown\r | |
| 61 | // | |\r | |
| 62 | // v |\r | |
| 63 | // +-------------+ Virtio-net setup complete, including DRIVER_OK\r | |
| 64 | // | initialized | bit. The receive queue is populated with\r | |
| 65 | // +-------------+ requests; McastIpToMac, GetStatus, Transmit,\r | |
| 66 | // Receive are callable.\r | |
| 67 | //\r | |
| 68 | \r | |
| 69 | typedef struct {\r | |
| 70 | //\r | |
| 71 | // Parts of this structure are initialized / torn down in various functions\r | |
| 72 | // at various call depths. The table to the right should make it easier to\r | |
| 73 | // track them.\r | |
| 74 | //\r | |
| 75 | // field init function\r | |
| 76 | // ------------------ ------------------------------\r | |
| 77 | UINT32 Signature; // VirtioNetDriverBindingStart\r | |
| 78 | EFI_PCI_IO_PROTOCOL *PciIo; // VirtioNetDriverBindingStart\r | |
| 79 | UINT64 OrigPciAttributes; // VirtioNetDriverBindingStart\r | |
| 80 | EFI_SIMPLE_NETWORK_PROTOCOL Snp; // VirtioNetSnpPopulate\r | |
| 81 | EFI_SIMPLE_NETWORK_MODE Snm; // VirtioNetSnpPopulate\r | |
| 82 | EFI_EVENT ExitBoot; // VirtioNetSnpPopulate\r | |
| 83 | EFI_DEVICE_PATH_PROTOCOL *MacDevicePath; // VirtioNetDriverBindingStart\r | |
| 84 | EFI_HANDLE MacHandle; // VirtioNetDriverBindingStart\r | |
| 85 | \r | |
| 86 | VRING RxRing; // VirtioNetInitRing\r | |
| 87 | UINT8 *RxBuf; // VirtioNetInitRx\r | |
| 88 | UINT16 RxLastUsed; // VirtioNetInitRx\r | |
| 89 | \r | |
| 90 | VRING TxRing; // VirtioNetInitRing\r | |
| 91 | UINT16 TxMaxPending; // VirtioNetInitTx\r | |
| 92 | UINT16 TxCurPending; // VirtioNetInitTx\r | |
| 93 | UINT16 *TxFreeStack; // VirtioNetInitTx\r | |
| 94 | VIRTIO_NET_REQ TxSharedReq; // VirtioNetInitTx\r | |
| 95 | UINT16 TxLastUsed; // VirtioNetInitTx\r | |
| 96 | } VNET_DEV;\r | |
| 97 | \r | |
| 98 | \r | |
| 99 | //\r | |
| 100 | // In order to avoid duplication of interface documentation, please find all\r | |
| 101 | // leading comments near the respective function / variable definitions (not\r | |
| 102 | // the declarations here), which is where your code editor of choice takes you\r | |
| 103 | // anyway when jumping to a function.\r | |
| 104 | //\r | |
| 105 | \r | |
| 106 | //\r | |
| 107 | // utility macros\r | |
| 108 | //\r | |
| 109 | #define VIRTIO_NET_FROM_SNP(SnpPointer) \\r | |
| 110 | CR (SnpPointer, VNET_DEV, Snp, VNET_SIG)\r | |
| 111 | \r | |
| 112 | #define VIRTIO_CFG_WRITE(Dev, Field, Value) (VirtioWrite ( \\r | |
| 113 | (Dev)->PciIo, \\r | |
| 114 | OFFSET_OF_VNET (Field), \\r | |
| 115 | SIZE_OF_VNET (Field), \\r | |
| 116 | (Value) \\r | |
| 117 | ))\r | |
| 118 | \r | |
| 119 | #define VIRTIO_CFG_READ(Dev, Field, Pointer) (VirtioRead ( \\r | |
| 120 | (Dev)->PciIo, \\r | |
| 121 | OFFSET_OF_VNET (Field), \\r | |
| 122 | SIZE_OF_VNET (Field), \\r | |
| 123 | sizeof *(Pointer), \\r | |
| 124 | (Pointer) \\r | |
| 125 | ))\r | |
| 126 | \r | |
| 127 | //\r | |
| 128 | // component naming\r | |
| 129 | //\r | |
| 130 | extern EFI_COMPONENT_NAME_PROTOCOL gVirtioNetComponentName;\r | |
| 131 | extern EFI_COMPONENT_NAME2_PROTOCOL gVirtioNetComponentName2;\r | |
| 132 | \r | |
| 133 | //\r | |
| 134 | // driver binding\r | |
| 135 | //\r | |
| 136 | extern EFI_DRIVER_BINDING_PROTOCOL gVirtioNetDriverBinding;\r | |
| 137 | \r | |
| 138 | //\r | |
| 139 | // member functions implementing the Simple Network Protocol\r | |
| 140 | //\r | |
| 141 | EFI_STATUS\r | |
| 142 | EFIAPI\r | |
| 143 | VirtioNetStart (\r | |
| 144 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This\r | |
| 145 | );\r | |
| 146 | \r | |
| 147 | EFI_STATUS\r | |
| 148 | EFIAPI\r | |
| 149 | VirtioNetStop (\r | |
| 150 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This\r | |
| 151 | );\r | |
| 152 | \r | |
| 153 | EFI_STATUS\r | |
| 154 | EFIAPI\r | |
| 155 | VirtioNetInitialize (\r | |
| 156 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This,\r | |
| 157 | IN UINTN ExtraRxBufferSize OPTIONAL,\r | |
| 158 | IN UINTN ExtraTxBufferSize OPTIONAL\r | |
| 159 | );\r | |
| 160 | \r | |
| 161 | EFI_STATUS\r | |
| 162 | EFIAPI\r | |
| 163 | VirtioNetReset (\r | |
| 164 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This,\r | |
| 165 | IN BOOLEAN ExtendedVerification\r | |
| 166 | );\r | |
| 167 | \r | |
| 168 | EFI_STATUS\r | |
| 169 | EFIAPI\r | |
| 170 | VirtioNetShutdown (\r | |
| 171 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This\r | |
| 172 | );\r | |
| 173 | \r | |
| 174 | EFI_STATUS\r | |
| 175 | EFIAPI\r | |
| 176 | VirtioNetReceiveFilters (\r | |
| 177 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This,\r | |
| 178 | IN UINT32 Enable,\r | |
| 179 | IN UINT32 Disable,\r | |
| 180 | IN BOOLEAN ResetMCastFilter,\r | |
| 181 | IN UINTN MCastFilterCnt OPTIONAL,\r | |
| 182 | IN EFI_MAC_ADDRESS *MCastFilter OPTIONAL\r | |
| 183 | );\r | |
| 184 | \r | |
| 185 | EFI_STATUS\r | |
| 186 | EFIAPI\r | |
| 187 | VirtioNetStationAddress (\r | |
| 188 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This,\r | |
| 189 | IN BOOLEAN Reset,\r | |
| 190 | IN EFI_MAC_ADDRESS *New OPTIONAL\r | |
| 191 | );\r | |
| 192 | \r | |
| 193 | EFI_STATUS\r | |
| 194 | EFIAPI\r | |
| 195 | VirtioNetStatistics (\r | |
| 196 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This,\r | |
| 197 | IN BOOLEAN Reset,\r | |
| 198 | IN OUT UINTN *StatisticsSize OPTIONAL,\r | |
| 199 | OUT EFI_NETWORK_STATISTICS *StatisticsTable OPTIONAL\r | |
| 200 | );\r | |
| 201 | \r | |
| 202 | EFI_STATUS\r | |
| 203 | EFIAPI\r | |
| 204 | VirtioNetMcastIpToMac (\r | |
| 205 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This,\r | |
| 206 | IN BOOLEAN IPv6,\r | |
| 207 | IN EFI_IP_ADDRESS *Ip,\r | |
| 208 | OUT EFI_MAC_ADDRESS *Mac\r | |
| 209 | );\r | |
| 210 | \r | |
| 211 | EFI_STATUS\r | |
| 212 | EFIAPI\r | |
| 213 | VirtioNetNvData (\r | |
| 214 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This,\r | |
| 215 | IN BOOLEAN ReadWrite,\r | |
| 216 | IN UINTN Offset,\r | |
| 217 | IN UINTN BufferSize,\r | |
| 218 | IN OUT VOID *Buffer\r | |
| 219 | );\r | |
| 220 | \r | |
| 221 | EFI_STATUS\r | |
| 222 | EFIAPI\r | |
| 223 | VirtioNetGetStatus (\r | |
| 224 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This,\r | |
| 225 | OUT UINT32 *InterruptStatus OPTIONAL,\r | |
| 226 | OUT VOID **TxBuf OPTIONAL\r | |
| 227 | );\r | |
| 228 | \r | |
| 229 | EFI_STATUS\r | |
| 230 | EFIAPI\r | |
| 231 | VirtioNetTransmit (\r | |
| 232 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This,\r | |
| 233 | IN UINTN HeaderSize,\r | |
| 234 | IN UINTN BufferSize,\r | |
| 235 | IN /* +OUT! */ VOID *Buffer,\r | |
| 236 | IN EFI_MAC_ADDRESS *SrcAddr OPTIONAL,\r | |
| 237 | IN EFI_MAC_ADDRESS *DestAddr OPTIONAL,\r | |
| 238 | IN UINT16 *Protocol OPTIONAL\r | |
| 239 | );\r | |
| 240 | \r | |
| 241 | EFI_STATUS\r | |
| 242 | EFIAPI\r | |
| 243 | VirtioNetReceive (\r | |
| 244 | IN EFI_SIMPLE_NETWORK_PROTOCOL *This,\r | |
| 245 | OUT UINTN *HeaderSize OPTIONAL,\r | |
| 246 | IN OUT UINTN *BufferSize,\r | |
| 247 | OUT VOID *Buffer,\r | |
| 248 | OUT EFI_MAC_ADDRESS *SrcAddr OPTIONAL,\r | |
| 249 | OUT EFI_MAC_ADDRESS *DestAddr OPTIONAL,\r | |
| 250 | OUT UINT16 *Protocol OPTIONAL\r | |
| 251 | );\r | |
| 252 | \r | |
| 253 | //\r | |
| 254 | // utility functions shared by various SNP member functions\r | |
| 255 | //\r | |
| 256 | VOID\r | |
| 257 | EFIAPI\r | |
| 258 | VirtioNetShutdownRx (\r | |
| 259 | IN OUT VNET_DEV *Dev\r | |
| 260 | );\r | |
| 261 | \r | |
| 262 | VOID\r | |
| 263 | EFIAPI\r | |
| 264 | VirtioNetShutdownTx (\r | |
| 265 | IN OUT VNET_DEV *Dev\r | |
| 266 | );\r | |
| 267 | \r | |
| 268 | //\r | |
| 269 | // event callbacks\r | |
| 270 | //\r | |
| 271 | VOID\r | |
| 272 | EFIAPI\r | |
| 273 | VirtioNetIsPacketAvailable (\r | |
| 274 | IN EFI_EVENT Event,\r | |
| 275 | IN VOID *Context\r | |
| 276 | );\r | |
| 277 | \r | |
| 278 | VOID\r | |
| 279 | EFIAPI\r | |
| 280 | VirtioNetExitBoot (\r | |
| 281 | IN EFI_EVENT Event,\r | |
| 282 | IN VOID *Context\r | |
| 283 | );\r | |
| 284 | \r | |
| 285 | #endif // _VIRTIO_NET_DXE_H_\r |