| /** @file | |
| Virtio Network Device specific type and macro definitions corresponding to | |
| the virtio-0.9.5 specification. | |
| Copyright (C) 2013, Red Hat, Inc. | |
| This program and the accompanying materials are licensed and made available | |
| under the terms and conditions of the BSD License which accompanies this | |
| distribution. The full text of the license may be found at | |
| http://opensource.org/licenses/bsd-license.php | |
| THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT | |
| WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
| **/ | |
| #ifndef _VIRTIO_NET_H_ | |
| #define _VIRTIO_NET_H_ | |
| #include <IndustryStandard/Virtio.h> | |
| // | |
| // virtio-0.9.5, Appendix C: Network Device | |
| // | |
| #pragma pack(1) | |
| typedef struct { | |
| UINT8 Mac[6]; | |
| UINT16 LinkStatus; | |
| } VIRTIO_NET_CONFIG; | |
| #pragma pack() | |
| #define OFFSET_OF_VNET(Field) OFFSET_OF (VIRTIO_NET_CONFIG, Field) | |
| #define SIZE_OF_VNET(Field) (sizeof ((VIRTIO_NET_CONFIG *) 0)->Field) | |
| // | |
| // Queue Identifiers | |
| // | |
| #define VIRTIO_NET_Q_RX 0 | |
| #define VIRTIO_NET_Q_TX 1 | |
| // | |
| // Feature Bits | |
| // | |
| #define VIRTIO_NET_F_CSUM BIT0 // host to checksum outgoing packets | |
| #define VIRTIO_NET_F_GUEST_CSUM BIT1 // guest to checksum incoming packets | |
| #define VIRTIO_NET_F_MAC BIT5 // MAC available to guest | |
| #define VIRTIO_NET_F_GSO BIT6 // deprecated | |
| #define VIRTIO_NET_F_GUEST_TSO4 BIT7 // guest can receive TSOv4 | |
| #define VIRTIO_NET_F_GUEST_TSO6 BIT8 // guest can receive TSOv6 | |
| #define VIRTIO_NET_F_GUEST_ECN BIT9 // guest can receive TSO with ECN | |
| #define VIRTIO_NET_F_GUEST_UFO BIT10 // guest can receive UFO | |
| #define VIRTIO_NET_F_HOST_TSO4 BIT11 // host can receive TSOv4 | |
| #define VIRTIO_NET_F_HOST_TSO6 BIT12 // host can receive TSOv6 | |
| #define VIRTIO_NET_F_HOST_ECN BIT13 // host can receive TSO with ECN | |
| #define VIRTIO_NET_F_HOST_UFO BIT14 // host can receive UFO | |
| #define VIRTIO_NET_F_MRG_RXBUF BIT15 // guest can merge receive buffers | |
| #define VIRTIO_NET_F_STATUS BIT16 // link status available to guest | |
| #define VIRTIO_NET_F_CTRL_VQ BIT17 // control channel available | |
| #define VIRTIO_NET_F_CTRL_RX BIT18 // control channel RX mode support | |
| #define VIRTIO_NET_F_CTRL_VLAN BIT19 // control channel VLAN filtering | |
| #define VIRTIO_NET_F_GUEST_ANNOUNCE BIT21 // guest can send gratuitous pkts | |
| // | |
| // Packet Header | |
| // | |
| #pragma pack(1) | |
| typedef struct { | |
| UINT8 Flags; | |
| UINT8 GsoType; | |
| UINT16 HdrLen; | |
| UINT16 GsoSize; | |
| UINT16 CsumStart; | |
| UINT16 CsumOffset; | |
| } VIRTIO_NET_REQ; | |
| #pragma pack() | |
| // | |
| // Bits in VIRTIO_NET_REQ.Flags | |
| // | |
| #define VIRTIO_NET_HDR_F_NEEDS_CSUM BIT0 | |
| // | |
| // Types/Bits for VIRTIO_NET_REQ.GsoType | |
| // | |
| #define VIRTIO_NET_HDR_GSO_NONE 0x00 | |
| #define VIRTIO_NET_HDR_GSO_TCPV4 0x01 | |
| #define VIRTIO_NET_HDR_GSO_UDP 0x03 | |
| #define VIRTIO_NET_HDR_GSO_TCPV6 0x04 | |
| #define VIRTIO_NET_HDR_GSO_ECN BIT7 | |
| // | |
| // Link Status Bits in VIRTIO_NET_CONFIG.LinkStatus | |
| // | |
| #define VIRTIO_NET_S_LINK_UP BIT0 | |
| #define VIRTIO_NET_S_ANNOUNCE BIT1 | |
| #endif // _VIRTIO_NET_H_ |