diff options
| author | Haiyang Zhang <haiyangz@microsoft.com> | 2012-03-12 14:20:50 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-03-13 04:06:48 +0400 |
| commit | 1f5f3a75e216fe771b8d6805e0bb2f43595a6ee1 (patch) | |
| tree | fc1f3e0c22c908dee660a565fe39f2416bca937b /drivers/net/hyperv/netvsc_drv.c | |
| parent | ef31bef6216db76950c38f1993b45953402f4c63 (diff) | |
| download | linux-1f5f3a75e216fe771b8d6805e0bb2f43595a6ee1.tar.xz | |
net/hyperv: Add support for vlan trunking from guests
With this feature, a Linux guest can now configure multiple vlans through
a single synthetic NIC on Win8 Hyper-V host.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/hyperv/netvsc_drv.c')
| -rw-r--r-- | drivers/net/hyperv/netvsc_drv.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index 217dfedbba20..0f8e8344891b 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -159,7 +159,8 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net) /* Allocate a netvsc packet based on # of frags. */ packet = kzalloc(sizeof(struct hv_netvsc_packet) + (num_pages * sizeof(struct hv_page_buffer)) + - sizeof(struct rndis_filter_packet), GFP_ATOMIC); + sizeof(struct rndis_filter_packet) + + NDIS_VLAN_PPI_SIZE, GFP_ATOMIC); if (!packet) { /* out of memory, drop packet */ netdev_err(net, "unable to allocate hv_netvsc_packet\n"); @@ -169,6 +170,8 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net) return NETDEV_TX_BUSY; } + packet->vlan_tci = skb->vlan_tci; + packet->extension = (void *)(unsigned long)packet + sizeof(struct hv_netvsc_packet) + (num_pages * sizeof(struct hv_page_buffer)); @@ -293,6 +296,7 @@ int netvsc_recv_callback(struct hv_device *device_obj, skb->protocol = eth_type_trans(skb, net); skb->ip_summed = CHECKSUM_NONE; + skb->vlan_tci = packet->vlan_tci; net->stats.rx_packets++; net->stats.rx_bytes += packet->total_data_buflen; @@ -407,7 +411,7 @@ static int netvsc_probe(struct hv_device *dev, /* TODO: Add GSO and Checksum offload */ net->hw_features = NETIF_F_SG; - net->features = NETIF_F_SG; + net->features = NETIF_F_SG | NETIF_F_HW_VLAN_TX; SET_ETHTOOL_OPS(net, ðtool_ops); SET_NETDEV_DEV(net, &dev->device); |