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- /** @file
- Virtio Network Device specific type and macro definitions corresponding to
- the virtio-0.9.5 specification.
- Copyright (C) 2013-2016, Red Hat, Inc.
- SPDX-License-Identifier: BSD-2-Clause-Patent
- **/
- #ifndef _VIRTIO_0_9_5_NET_H_
- #define _VIRTIO_0_9_5_NET_H_
- #include <IndustryStandard/Virtio095.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_0_9_5_NET_H_
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