diff options
| author | Susant Sahani <ssahani@gmail.com> | 2015-07-14 13:55:52 +0530 |
|---|---|---|
| committer | Susant Sahani <susant@redhat.com> | 2015-07-14 14:10:56 +0530 |
| commit | f5f07dbf06f6df9d12e092c05ad8cfbe244d203f (patch) | |
| tree | d2a371bb533afb8a057dffe09ae496ac79e417ee | |
| parent | ff89f8b917a83a3fc0dc3ad0961c3bc953f78e8f (diff) | |
networkd: tap add support for vnet_hdr
This patch adds support to configure IFF_VNET_HDR flag
for a tap device. It allows whether sending and receiving
large pass larger (GSO) packets. This greatly increases the
achievable throughput.
| -rw-r--r-- | src/network/networkd-netdev-gperf.gperf | 1 | ||||
| -rw-r--r-- | src/network/networkd-netdev-tuntap.c | 3 | ||||
| -rw-r--r-- | src/network/networkd-netdev-tuntap.h | 1 |
3 files changed, 5 insertions, 0 deletions
diff --git a/src/network/networkd-netdev-gperf.gperf b/src/network/networkd-netdev-gperf.gperf index 66ed2e013..010c10661 100644 --- a/src/network/networkd-netdev-gperf.gperf +++ b/src/network/networkd-netdev-gperf.gperf @@ -59,6 +59,7 @@ Tun.Group, config_parse_string, 0, Tap.OneQueue, config_parse_bool, 0, offsetof(TunTap, one_queue) Tap.MultiQueue, config_parse_bool, 0, offsetof(TunTap, multi_queue) Tap.PacketInfo, config_parse_bool, 0, offsetof(TunTap, packet_info) +Tap.VnetHeader, config_parse_bool, 0, offsetof(TunTap, vnet_hdr) Tap.User, config_parse_string, 0, offsetof(TunTap, user_name) Tap.Group, config_parse_string, 0, offsetof(TunTap, group_name) Bond.Mode, config_parse_bond_mode, 0, offsetof(Bond, mode) diff --git a/src/network/networkd-netdev-tuntap.c b/src/network/networkd-netdev-tuntap.c index 378312f09..ba84e802f 100644 --- a/src/network/networkd-netdev-tuntap.c +++ b/src/network/networkd-netdev-tuntap.c @@ -51,6 +51,9 @@ static int netdev_fill_tuntap_message(NetDev *netdev, struct ifreq *ifr) { if (t->multi_queue) ifr->ifr_flags |= IFF_MULTI_QUEUE; + if (t->vnet_hdr) + ifr->ifr_flags |= IFF_VNET_HDR; + strncpy(ifr->ifr_name, netdev->ifname, IFNAMSIZ-1); return 0; diff --git a/src/network/networkd-netdev-tuntap.h b/src/network/networkd-netdev-tuntap.h index b804875bb..29f8bb0ea 100644 --- a/src/network/networkd-netdev-tuntap.h +++ b/src/network/networkd-netdev-tuntap.h @@ -33,6 +33,7 @@ struct TunTap { bool one_queue; bool multi_queue; bool packet_info; + bool vnet_hdr; }; extern const NetDevVTable tun_vtable; |