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Make GSO optional

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世界 2024-11-22 17:01:28 +08:00
parent 2b8115e83b
commit c1f61d08ba
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GPG key ID: CD109927C34A63C4
2 changed files with 27 additions and 18 deletions
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44
tun_linux.go
View file

@ -328,25 +328,9 @@ func (t *NativeTun) configure(tunLink netlink.Link) error {
}
if t.options.GSO {
var vnetHdrEnabled bool
vnetHdrEnabled, err = checkVNETHDREnabled(t.tunFd, t.options.Name)
err = t.enableGSO()
if err != nil {
return E.Cause(err, "enable offload: check IFF_VNET_HDR enabled")
}
if !vnetHdrEnabled {
return E.Cause(err, "enable offload: IFF_VNET_HDR not enabled")
}
err = setTCPOffload(t.tunFd)
if err != nil {
return err
}
t.vnetHdr = true
t.writeBuffer = make([]byte, virtioNetHdrLen+int(gsoMaxSize))
t.tcpGROTable = newTCPGROTable()
t.udpGROTable = newUDPGROTable()
err = setUDPOffload(t.tunFd)
if err != nil {
t.gro.disableUDPGRO()
t.options.Logger.Warn(err)
}
}
@ -374,6 +358,30 @@ func (t *NativeTun) configure(tunLink netlink.Link) error {
return nil
}
func (t *NativeTun) enableGSO() error {
vnetHdrEnabled, err := checkVNETHDREnabled(t.tunFd, t.options.Name)
if err != nil {
return E.Cause(err, "enable offload: check IFF_VNET_HDR enabled")
}
if !vnetHdrEnabled {
return E.Cause(err, "enable offload: IFF_VNET_HDR not enabled")
}
err = setTCPOffload(t.tunFd)
if err != nil {
return E.Cause(err, "enable TCP offload")
}
t.vnetHdr = true
t.writeBuffer = make([]byte, virtioNetHdrLen+int(gsoMaxSize))
t.tcpGROTable = newTCPGROTable()
t.udpGROTable = newUDPGROTable()
err = setUDPOffload(t.tunFd)
if err != nil {
t.gro.disableUDPGRO()
return E.Cause(err, "enable UDP offload")
}
return nil
}
func (t *NativeTun) Start() error {
if t.options.FileDescriptor != 0 {
return nil

1
tun_linux_gvisor.go
View file

@ -15,6 +15,7 @@ func (t *NativeTun) NewEndpoint() (stack.LinkEndpoint, error) {
FDs: []int{t.tunFd},
MTU: t.options.MTU,
GSOMaxSize: gsoMaxSize,
GRO: true,
RXChecksumOffload: true,
TXChecksumOffload: t.txChecksumOffload,
})