diff options
Diffstat (limited to 'pkg/tcpip/stack')
| -rw-r--r-- | pkg/tcpip/stack/registration.go | 24 | ||||
| -rw-r--r-- | pkg/tcpip/stack/route.go | 10 |
2 files changed, 27 insertions, 7 deletions
diff --git a/pkg/tcpip/stack/registration.go b/pkg/tcpip/stack/registration.go index 7ad206f6d..e26225552 100644 --- a/pkg/tcpip/stack/registration.go +++ b/pkg/tcpip/stack/registration.go @@ -756,11 +756,6 @@ const ( CapabilitySaveRestore CapabilityDisconnectOk CapabilityLoopback - CapabilityHardwareGSO - - // CapabilitySoftwareGSO indicates the link endpoint supports of sending - // multiple packets using a single call (LinkEndpoint.WritePackets). - CapabilitySoftwareGSO ) // NetworkLinkEndpoint is a data-link layer that supports sending network @@ -1047,10 +1042,29 @@ type GSO struct { MaxSize uint32 } +// SupportedGSO returns the type of segmentation offloading supported. +type SupportedGSO int + +const ( + // GSONotSupported indicates that segmentation offloading is not supported. + GSONotSupported SupportedGSO = iota + + // HWGSOSupported indicates that segmentation offloading may be performed by + // the hardware. + HWGSOSupported + + // SWGSOSupported indicates that segmentation offloading may be performed in + // software. + SWGSOSupported +) + // GSOEndpoint provides access to GSO properties. type GSOEndpoint interface { // GSOMaxSize returns the maximum GSO packet size. GSOMaxSize() uint32 + + // SupportedGSO returns the supported segmentation offloading. + SupportedGSO() SupportedGSO } // SoftwareGSOMaxSize is a maximum allowed size of a software GSO segment. diff --git a/pkg/tcpip/stack/route.go b/pkg/tcpip/stack/route.go index 4ecde5995..8a044c073 100644 --- a/pkg/tcpip/stack/route.go +++ b/pkg/tcpip/stack/route.go @@ -300,12 +300,18 @@ func (r *Route) RequiresTXTransportChecksum() bool { // HasSoftwareGSOCapability returns true if the route supports software GSO. func (r *Route) HasSoftwareGSOCapability() bool { - return r.outgoingNIC.LinkEndpoint.Capabilities()&CapabilitySoftwareGSO != 0 + if gso, ok := r.outgoingNIC.LinkEndpoint.(GSOEndpoint); ok { + return gso.SupportedGSO() == SWGSOSupported + } + return false } // HasHardwareGSOCapability returns true if the route supports hardware GSO. func (r *Route) HasHardwareGSOCapability() bool { - return r.outgoingNIC.LinkEndpoint.Capabilities()&CapabilityHardwareGSO != 0 + if gso, ok := r.outgoingNIC.LinkEndpoint.(GSOEndpoint); ok { + return gso.SupportedGSO() == HWGSOSupported + } + return false } // HasSaveRestoreCapability returns true if the route supports save/restore. |