From 201cac0d5aeb5a2e73cdba2c4ffcf146dd4f4b15 Mon Sep 17 00:00:00 2001 From: Laszlo Ersek Date: Fri, 14 Jun 2013 07:39:32 +0000 Subject: OvmfPkg: VirtioNetDxe: declarations and macro definitions Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek Reviewed-by: Jordan Justen Reviewed-by: Stefan Hajnoczi git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14405 6f19259b-4bc3-4df7-8a09-765794883524 --- OvmfPkg/Include/IndustryStandard/VirtioNet.h | 99 ++++++++++++++++++++++++++++ 1 file changed, 99 insertions(+) create mode 100644 OvmfPkg/Include/IndustryStandard/VirtioNet.h (limited to 'OvmfPkg/Include/IndustryStandard') diff --git a/OvmfPkg/Include/IndustryStandard/VirtioNet.h b/OvmfPkg/Include/IndustryStandard/VirtioNet.h new file mode 100644 index 0000000000..9f5291a24c --- /dev/null +++ b/OvmfPkg/Include/IndustryStandard/VirtioNet.h @@ -0,0 +1,99 @@ +/** @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 + +// +// virtio-0.9.5, Appendix C: Network Device +// +#pragma pack(1) +typedef struct { + VIRTIO_HDR Generic; + UINT8 VhdrMac[6]; + UINT16 VhdrLinkStatus; +} VNET_HDR; +#pragma pack() + +#define OFFSET_OF_VNET(Field) OFFSET_OF (VNET_HDR, Field) +#define SIZE_OF_VNET(Field) (sizeof ((VNET_HDR *) 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 VNET_HDR.VhdrLinkStatus +// +#define VIRTIO_NET_S_LINK_UP BIT0 +#define VIRTIO_NET_S_ANNOUNCE BIT1 + +#endif // _VIRTIO_NET_H_ -- cgit v1.2.3