1 /** @file 2 Virtio Network Device specific type and macro definitions corresponding to 3 the virtio-0.9.5 specification. 4 5 Copyright (C) 2013-2016, Red Hat, Inc. 6 7 This program and the accompanying materials are licensed and made available 8 under the terms and conditions of the BSD License which accompanies this 9 distribution. The full text of the license may be found at 10 http://opensource.org/licenses/bsd-license.php 11 12 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT 13 WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 14 15 **/ 16 17 #ifndef _VIRTIO_0_9_5_NET_H_ 18 #define _VIRTIO_0_9_5_NET_H_ 19 20 #include <IndustryStandard/Virtio095.h> 21 22 // 23 // virtio-0.9.5, Appendix C: Network Device 24 // 25 #pragma pack(1) 26 typedef struct { 27 UINT8 Mac[6]; 28 UINT16 LinkStatus; 29 } VIRTIO_NET_CONFIG; 30 #pragma pack() 31 32 #define OFFSET_OF_VNET(Field) OFFSET_OF (VIRTIO_NET_CONFIG, Field) 33 #define SIZE_OF_VNET(Field) (sizeof ((VIRTIO_NET_CONFIG *) 0)->Field) 34 35 // 36 // Queue Identifiers 37 // 38 #define VIRTIO_NET_Q_RX 0 39 #define VIRTIO_NET_Q_TX 1 40 41 // 42 // Feature Bits 43 // 44 #define VIRTIO_NET_F_CSUM BIT0 // host to checksum outgoing packets 45 #define VIRTIO_NET_F_GUEST_CSUM BIT1 // guest to checksum incoming packets 46 #define VIRTIO_NET_F_MAC BIT5 // MAC available to guest 47 #define VIRTIO_NET_F_GSO BIT6 // deprecated 48 #define VIRTIO_NET_F_GUEST_TSO4 BIT7 // guest can receive TSOv4 49 #define VIRTIO_NET_F_GUEST_TSO6 BIT8 // guest can receive TSOv6 50 #define VIRTIO_NET_F_GUEST_ECN BIT9 // guest can receive TSO with ECN 51 #define VIRTIO_NET_F_GUEST_UFO BIT10 // guest can receive UFO 52 #define VIRTIO_NET_F_HOST_TSO4 BIT11 // host can receive TSOv4 53 #define VIRTIO_NET_F_HOST_TSO6 BIT12 // host can receive TSOv6 54 #define VIRTIO_NET_F_HOST_ECN BIT13 // host can receive TSO with ECN 55 #define VIRTIO_NET_F_HOST_UFO BIT14 // host can receive UFO 56 #define VIRTIO_NET_F_MRG_RXBUF BIT15 // guest can merge receive buffers 57 #define VIRTIO_NET_F_STATUS BIT16 // link status available to guest 58 #define VIRTIO_NET_F_CTRL_VQ BIT17 // control channel available 59 #define VIRTIO_NET_F_CTRL_RX BIT18 // control channel RX mode support 60 #define VIRTIO_NET_F_CTRL_VLAN BIT19 // control channel VLAN filtering 61 #define VIRTIO_NET_F_GUEST_ANNOUNCE BIT21 // guest can send gratuitous pkts 62 63 // 64 // Packet Header 65 // 66 #pragma pack(1) 67 typedef struct { 68 UINT8 Flags; 69 UINT8 GsoType; 70 UINT16 HdrLen; 71 UINT16 GsoSize; 72 UINT16 CsumStart; 73 UINT16 CsumOffset; 74 } VIRTIO_NET_REQ; 75 #pragma pack() 76 77 // 78 // Bits in VIRTIO_NET_REQ.Flags 79 // 80 #define VIRTIO_NET_HDR_F_NEEDS_CSUM BIT0 81 82 // 83 // Types/Bits for VIRTIO_NET_REQ.GsoType 84 // 85 #define VIRTIO_NET_HDR_GSO_NONE 0x00 86 #define VIRTIO_NET_HDR_GSO_TCPV4 0x01 87 #define VIRTIO_NET_HDR_GSO_UDP 0x03 88 #define VIRTIO_NET_HDR_GSO_TCPV6 0x04 89 #define VIRTIO_NET_HDR_GSO_ECN BIT7 90 91 // 92 // Link Status Bits in VIRTIO_NET_CONFIG.LinkStatus 93 // 94 #define VIRTIO_NET_S_LINK_UP BIT0 95 #define VIRTIO_NET_S_ANNOUNCE BIT1 96 97 #endif // _VIRTIO_0_9_5_NET_H_ 98
