xdp

package
v0.0.0-...-8940ca0 Latest Latest
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Published: Mar 9, 2023 License: Apache-2.0, MIT Imports: 11 Imported by: 0

Documentation

Overview

Package xdp provides link layer endpoints backed by AF_XDP sockets.

Index

Constants

View Source
const MTU = 1500

MTU is sized to ensure packets fit inside a 2048 byte XDP frame.

Variables

This section is empty.

Functions

func New

func New(opts *Options) (stack.LinkEndpoint, error)

New creates a new endpoint from an AF_XDP socket.

Types

type Options

type Options struct {
	// FD is used to read/write packets.
	FD int

	// ClosedFunc is a function to be called when an endpoint's peer (if
	// any) closes its end of the communication pipe.
	ClosedFunc func(tcpip.Error)

	// Address is the link address for this endpoint.
	Address tcpip.LinkAddress

	// SaveRestore if true, indicates that this NIC capability set should
	// include CapabilitySaveRestore
	SaveRestore bool

	// DisconnectOk if true, indicates that this NIC capability set should
	// include CapabilityDisconnectOk.
	DisconnectOk bool

	// TXChecksumOffload if true, indicates that this endpoints capability
	// set should include CapabilityTXChecksumOffload.
	TXChecksumOffload bool

	// RXChecksumOffload if true, indicates that this endpoints capability
	// set should include CapabilityRXChecksumOffload.
	RXChecksumOffload bool

	// InterfaceIndex is the interface index of the underlying device.
	InterfaceIndex int
}

Options specify the details about the fd-based endpoint to be created.

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