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Add flags cIFF_MULTI_QUEUE

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Signed-off-by: Tony Lu <tonyluj@gmail.com>
This commit is contained in:
Tony Lu 2017-08-22 01:08:43 +08:00
parent 99d07fc117
commit c14726aabc
2 changed files with 23 additions and 5 deletions
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5
params_linux.go
View file

@ -31,6 +31,11 @@ type PlatformSpecificParams struct {
// A zero-value of this field, i.e. nil, indicates that no changes to owner
// or group will be made.
Permissions *DevicePermissions
// Support multiqueue tun/tap interface.
// From version 3.8, Linux supports multiqueue tuntap which can uses multiple
// file descriptors (queues) to parallelize packets sending or receiving.
MultiQueue bool
}
func defaultPlatformSpecificParams() PlatformSpecificParams {

23
syscalls_linux.go
View file

@ -10,9 +10,10 @@ import (
)
const (
cIFF_TUN = 0x0001
cIFF_TAP = 0x0002
cIFF_NO_PI = 0x1000
cIFF_TUN = 0x0001
cIFF_TAP = 0x0002
cIFF_NO_PI = 0x1000
cIFF_MULTI_QUEUE = 0x0100
)
type ifReq struct {
@ -34,7 +35,13 @@ func newTAP(config Config) (ifce *Interface, err error) {
if err != nil {
return nil, err
}
name, err := createInterface(file.Fd(), config.Name, cIFF_TAP|cIFF_NO_PI)
var flags uint16
flags = cIFF_TUN | cIFF_NO_PI
if config.PlatformSpecificParams.MultiQueue {
flags = cIFF_TUN | cIFF_NO_PI | cIFF_MULTI_QUEUE
}
name, err := createInterface(file.Fd(), config.Name, flags)
if err != nil {
return nil, err
}
@ -52,7 +59,13 @@ func newTUN(config Config) (ifce *Interface, err error) {
if err != nil {
return nil, err
}
name, err := createInterface(file.Fd(), config.Name, cIFF_TUN|cIFF_NO_PI)
var flags uint16
flags = cIFF_TUN | cIFF_NO_PI
if config.PlatformSpecificParams.MultiQueue {
flags = cIFF_TUN | cIFF_NO_PI | cIFF_MULTI_QUEUE
}
name, err := createInterface(file.Fd(), config.Name, flags)
if err != nil {
return nil, err
}