projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 201cac0d LE |
1 | /** @file |
| 2 | ||
| 3 | Virtio Network Device specific type and macro definitions corresponding to | |
| 4 | the virtio-0.9.5 specification. | |
| 5 | ||
| 6 | Copyright (C) 2013, Red Hat, Inc. | |
| 7 | ||
| 8 | This program and the accompanying materials are licensed and made available | |
| 9 | under the terms and conditions of the BSD License which accompanies this | |
| 10 | distribution. The full text of the license may be found at | |
| 11 | http://opensource.org/licenses/bsd-license.php | |
| 12 | ||
| 13 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT | |
| 14 | WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
| 15 | ||
| 16 | **/ | |
| 17 | ||
| 18 | #ifndef _VIRTIO_NET_H_ | |
| 19 | #define _VIRTIO_NET_H_ | |
| 20 | ||
| 21 | #include <IndustryStandard/Virtio.h> | |
| 22 | ||
| 23 | // | |
| 24 | // virtio-0.9.5, Appendix C: Network Device | |
| 25 | // | |
| 26 | #pragma pack(1) | |
| 27 | typedef struct { | |
| 28 | VIRTIO_HDR Generic; | |
| 29 | UINT8 VhdrMac[6]; | |
| 30 | UINT16 VhdrLinkStatus; | |
| 31 | } VNET_HDR; | |
| 32 | #pragma pack() | |
| 33 | ||
| 34 | #define OFFSET_OF_VNET(Field) OFFSET_OF (VNET_HDR, Field) | |
| 35 | #define SIZE_OF_VNET(Field) (sizeof ((VNET_HDR *) 0)->Field) | |
| 36 | ||
| 37 | // | |
| 38 | // Queue Identifiers | |
| 39 | // | |
| 40 | #define VIRTIO_NET_Q_RX 0 | |
| 41 | #define VIRTIO_NET_Q_TX 1 | |
| 42 | ||
| 43 | // | |
| 44 | // Feature Bits | |
| 45 | // | |
| 46 | #define VIRTIO_NET_F_CSUM BIT0 // host to checksum outgoing packets | |
| 47 | #define VIRTIO_NET_F_GUEST_CSUM BIT1 // guest to checksum incoming packets | |
| 48 | #define VIRTIO_NET_F_MAC BIT5 // MAC available to guest | |
| 49 | #define VIRTIO_NET_F_GSO BIT6 // deprecated | |
| 50 | #define VIRTIO_NET_F_GUEST_TSO4 BIT7 // guest can receive TSOv4 | |
| 51 | #define VIRTIO_NET_F_GUEST_TSO6 BIT8 // guest can receive TSOv6 | |
| 52 | #define VIRTIO_NET_F_GUEST_ECN BIT9 // guest can receive TSO with ECN | |
| 53 | #define VIRTIO_NET_F_GUEST_UFO BIT10 // guest can receive UFO | |
| 54 | #define VIRTIO_NET_F_HOST_TSO4 BIT11 // host can receive TSOv4 | |
| 55 | #define VIRTIO_NET_F_HOST_TSO6 BIT12 // host can receive TSOv6 | |
| 56 | #define VIRTIO_NET_F_HOST_ECN BIT13 // host can receive TSO with ECN | |
| 57 | #define VIRTIO_NET_F_HOST_UFO BIT14 // host can receive UFO | |
| 58 | #define VIRTIO_NET_F_MRG_RXBUF BIT15 // guest can merge receive buffers | |
| 59 | #define VIRTIO_NET_F_STATUS BIT16 // link status available to guest | |
| 60 | #define VIRTIO_NET_F_CTRL_VQ BIT17 // control channel available | |
| 61 | #define VIRTIO_NET_F_CTRL_RX BIT18 // control channel RX mode support | |
| 62 | #define VIRTIO_NET_F_CTRL_VLAN BIT19 // control channel VLAN filtering | |
| 63 | #define VIRTIO_NET_F_GUEST_ANNOUNCE BIT21 // guest can send gratuitous pkts | |
| 64 | ||
| 65 | // | |
| 66 | // Packet Header | |
| 67 | // | |
| 68 | #pragma pack(1) | |
| 69 | typedef struct { | |
| 70 | UINT8 Flags; | |
| 71 | UINT8 GsoType; | |
| 72 | UINT16 HdrLen; | |
| 73 | UINT16 GsoSize; | |
| 74 | UINT16 CsumStart; | |
| 75 | UINT16 CsumOffset; | |
| 76 | } VIRTIO_NET_REQ; | |
| 77 | #pragma pack() | |
| 78 | ||
| 79 | // | |
| 80 | // Bits in VIRTIO_NET_REQ.Flags | |
| 81 | // | |
| 82 | #define VIRTIO_NET_HDR_F_NEEDS_CSUM BIT0 | |
| 83 | ||
| 84 | // | |
| 85 | // Types/Bits for VIRTIO_NET_REQ.GsoType | |
| 86 | // | |
| 87 | #define VIRTIO_NET_HDR_GSO_NONE 0x00 | |
| 88 | #define VIRTIO_NET_HDR_GSO_TCPV4 0x01 | |
| 89 | #define VIRTIO_NET_HDR_GSO_UDP 0x03 | |
| 90 | #define VIRTIO_NET_HDR_GSO_TCPV6 0x04 | |
| 91 | #define VIRTIO_NET_HDR_GSO_ECN BIT7 | |
| 92 | ||
| 93 | // | |
| 94 | // Link Status Bits in VNET_HDR.VhdrLinkStatus | |
| 95 | // | |
| 96 | #define VIRTIO_NET_S_LINK_UP BIT0 | |
| 97 | #define VIRTIO_NET_S_ANNOUNCE BIT1 | |
| 98 | ||
| 99 | #endif // _VIRTIO_NET_H_ |