diff options
| author | Haiyang Zhang <haiyangz@microsoft.com> | 2014-11-12 14:07:44 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-11-12 16:21:36 -0500 |
| commit | 4d3c9d37f77566b04216dfc9a6513082002d7a1f (patch) | |
| tree | c23efd4874c81912f2ad9a176ba57d74c9ec637a /drivers/net/hyperv/netvsc.c | |
| parent | 5226cfc500022104d92813ee218608e80f56ead6 (diff) | |
hyperv: Add processing of MTU reduced by the host
If the host uses packet encapsulation feature, the MTU may be reduced by the
host due to headroom reservation for encapsulation. This patch handles this
new MTU value.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/hyperv/netvsc.c')
| -rw-r--r-- | drivers/net/hyperv/netvsc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c index 7d76c9523395..6b463117dcac 100644 --- a/drivers/net/hyperv/netvsc.c +++ b/drivers/net/hyperv/netvsc.c @@ -440,7 +440,8 @@ static int negotiate_nvsp_ver(struct hv_device *device, /* NVSPv2 only: Send NDIS config */ memset(init_packet, 0, sizeof(struct nvsp_message)); init_packet->hdr.msg_type = NVSP_MSG2_TYPE_SEND_NDIS_CONFIG; - init_packet->msg.v2_msg.send_ndis_config.mtu = net_device->ndev->mtu; + init_packet->msg.v2_msg.send_ndis_config.mtu = net_device->ndev->mtu + + ETH_HLEN; init_packet->msg.v2_msg.send_ndis_config.capability.ieee8021q = 1; ret = vmbus_sendpacket(device->channel, init_packet, |