Why Go
- Case Studies
  
  Common problems companies solve with Go
- Use Cases
  
  Stories about how and why companies use Go
- Security
  
  How Go can help keep you secure by default
Learn
Docs
- Effective Go
  
  Tips for writing clear, performant, and idiomatic Go code
- Go User Manual
  
  A complete introduction to building software with Go
- Standard library
  
  Reference documentation for Go's standard library
- Release Notes
  
  Learn what's new in each Go release
- API
  
  Reference documentation for the pkg.go.dev API
Packages
Community
- Recorded Talks
  
  Videos from prior events
- Meetups
  
  Meet other local Go developers
- Conferences
  
  Learn and network with Go developers from around the world
- Go blog
  
  The Go project's official blog.
- Go project
  
  Get help and stay informed from Go
- Get connected

kernel

package

Go to main page

Versions in this module

v0

v0.0.26

Sep 24, 2026

v0.0.25

Sep 15, 2026

v0.0.24

Sep 15, 2026

Changes in this version

+ var ErrXDPUnsupported = errors.New("fh: XDP is unsupported on this platform")

+ func BuildXDP(source, output string) error

+ func DefaultXDPPinPath(interfaceName string) string

+ func DetachXDP(iface string, mode XDPMode) error

+ func Listen(addr string, t *tls.Config, c KernelConfig, host Host) error — darwin/amd64, windows/amd64

+ func Listen(addr string, tlsConfig *tls.Config, cfg KernelConfig, host Host) error — linux/amd64

+ func Listen(string, *tls.Config, KernelConfig, Host) error — js/wasm

+ func NormalizeConfig(cfg *KernelConfig) error

+ type Host struct

+ AcceptConnection func(net.Conn) bool

+ AddAcceptErrors func(uint64)

+ AddPinnedThreads func(int32)

+ AddSocketOptionErrors func(uint64)

+ BeginShutdown func() error

+ Closed func() bool

+ FinishServing func()

+ LogInfo func(string, ...any)

+ LogWarn func(string, ...any)

+ NormalizeServeError func(error, bool) error

+ PrintStartupBanner func(net.Listener)

+ SetRuntime func(closer interface{ ... }, info KernelRuntimeInfo)

+ StartServing func(net.Listener) error

+ type KernelBackend string

+ const KernelBackendAuto

+ const KernelBackendEpoll

+ const KernelBackendEventPorts

+ const KernelBackendIOCP

+ const KernelBackendIOUring

+ const KernelBackendKqueue

+ const KernelBackendNative

+ const KernelBackendPollset

+ const KernelBackendStandard

+ type KernelCapabilities struct

+ Arch string

+ BPFFSMounted bool

+ BPFToolAvailable bool

+ ClangBPFAvailable bool

+ ClangBPFProbeError string

+ Epoll bool

+ EventPorts bool

+ IOCP bool

+ IOUring bool

+ IOUringFeatures uint32

+ IOUringProbeError string

+ IPToolAvailable bool

+ KernelRelease string

+ Kqueue bool

+ NativePoller string

+ OS string

+ Pollset bool

+ ReusePort bool

+ ReusePortBPF bool

+ RuntimeNetpoll bool

+ ServerSockets bool

+ XDPTooling bool

+ func ProbeKernel() KernelCapabilities

+ type KernelConfig struct

+ AcceptErrorBackoffMax time.Duration

+ AcceptErrorBackoffMin time.Duration

+ Backend KernelBackend

+ Backlog int

+ BusyPoll time.Duration

+ CPUSet []int

+ Enabled bool

+ IOUringEntries uint32

+ PinThreads bool

+ PreferIOUring bool

+ Profile KernelProfile

+ Reactors int

+ ReceiveBufferBytes int

+ Required bool

+ ReusePort bool

+ ReusePortBPF bool

+ SendBufferBytes int

+ StrictSocketOptions bool

+ TCPDeferAccept time.Duration

+ TCPFastOpenQueue int

+ TCPKeepAlive time.Duration

+ TCPKeepAliveIdle time.Duration

+ TCPKeepAliveIntvl time.Duration

+ TCPKeepAliveProbes int

+ TCPNoDelay bool

+ TCPUserTimeout time.Duration

+ XDP XDPConfig

+ func DefaultKernelConfig() KernelConfig

+ func HighPerformanceKernelConfig() KernelConfig

+ func ProductionKernelConfig() KernelConfig

+ type KernelProfile string

+ const KernelProfileBalanced

+ const KernelProfileCompatibility

+ const KernelProfileLatency

+ const KernelProfileThroughput

+ type KernelRuntimeInfo struct

+ Accelerated bool

+ AcceptErrors uint64

+ Accepted uint64

+ ActiveConnections uint64

+ Arch string

+ Backend KernelBackend

+ Dropped uint64

+ Enabled bool

+ FallbackReason string

+ IOUringAvailable bool

+ IOUringFeatures uint32

+ IOUringNetworkIO bool

+ IOUringProbed bool

+ NativePoller string

+ OS string

+ PeakConnections uint64

+ Profile KernelProfile

+ Reactors int

+ RejectedGlobal uint64

+ RejectedPerIP uint64

+ RequestedBackend KernelBackend

+ ReusePort bool

+ ReusePortBPF bool

+ SocketOptionErrors uint64

+ ThreadsPinned int

+ XDPAttached bool

+ XDPInterface string

+ type ReadinessConfig struct

+ DisablePanicRecovery bool

+ FastMode bool

+ IdleTimeoutSet bool

+ Kernel KernelConfig

+ MaxConnections int

+ MaxConnectionsPerIP int

+ ReadHeaderTimeoutSet bool

+ RequestBodyTimeoutSet bool

+ TLSHandshakeTimeoutSet bool

+ type ReadinessIssue struct

+ Code string

+ Message string

+ Severity ReadinessSeverity

+ type ReadinessReport struct

+ Issues []ReadinessIssue

+ Ready bool

+ RequiresWorkloadBenchmark bool

+ Runtime KernelRuntimeInfo

+ func EvaluateReadiness(c ReadinessConfig, runtimeInfo KernelRuntimeInfo) ReadinessReport

+ type ReadinessSeverity string

+ const ReadinessError

+ const ReadinessInfo

+ const ReadinessWarning

+ type XDPConfig struct

+ AutoAttach bool

+ Burst uint64

+ Enabled bool

+ Interface string

+ Mode XDPMode

+ ObjectPath string

+ PinPath string

+ ProtectedPorts []uint16

+ RatePerSecond uint64

+ Required bool

+ Section string

+ type XDPManager struct

+ func NewXDPManager(cfg XDPConfig) *XDPManager

+ func (m *XDPManager) Attach() error

+ func (m *XDPManager) Attached() bool

+ func (m *XDPManager) BlockIP(addr netip.Addr) error

+ func (m *XDPManager) Detach() error

+ func (m *XDPManager) ProtectPort(port uint16) error

+ func (m *XDPManager) SetRateLimit(rate, burst uint64) error

+ func (m *XDPManager) UnblockIP(addr netip.Addr) error

+ func (m *XDPManager) UnprotectPort(port uint16) error

+ type XDPMode string

+ const XDPModeGeneric

+ const XDPModeNative

+ const XDPModeOffload

v0.0.23

Sep 8, 2026

v0.0.22

Sep 7, 2026

v0.0.21

Aug 23, 2026

v0.0.20

Aug 12, 2026

v0.0.19

Jul 19, 2026

v0.0.18

Jul 17, 2026