diff options
Diffstat (limited to 'drivers/net/hyperv/netvsc_drv.c')
| -rw-r--r-- | drivers/net/hyperv/netvsc_drv.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index 6267f706e8ee..e0327b88732c 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -605,6 +605,29 @@ static int netvsc_xmit(struct sk_buff *skb, struct net_device *net, bool xdp_tx) *hash_info = hash; } + /* When using AF_PACKET we need to drop VLAN header from + * the frame and update the SKB to allow the HOST OS + * to transmit the 802.1Q packet + */ + if (skb->protocol == htons(ETH_P_8021Q)) { + u16 vlan_tci; + + skb_reset_mac_header(skb); + if (eth_type_vlan(eth_hdr(skb)->h_proto)) { + if (unlikely(__skb_vlan_pop(skb, &vlan_tci) != 0)) { + ++net_device_ctx->eth_stats.vlan_error; + goto drop; + } + + __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vlan_tci); + /* Update the NDIS header pkt lengths */ + packet->total_data_buflen -= VLAN_HLEN; + packet->total_bytes -= VLAN_HLEN; + rndis_msg->msg_len = packet->total_data_buflen; + rndis_msg->msg.pkt.data_len = packet->total_data_buflen; + } + } + if (skb_vlan_tag_present(skb)) { struct ndis_pkt_8021q_info *vlan; @@ -1427,6 +1450,7 @@ static const struct { { "rx_no_memory", offsetof(struct netvsc_ethtool_stats, rx_no_memory) }, { "stop_queue", offsetof(struct netvsc_ethtool_stats, stop_queue) }, { "wake_queue", offsetof(struct netvsc_ethtool_stats, wake_queue) }, + { "vlan_error", offsetof(struct netvsc_ethtool_stats, vlan_error) }, }, pcpu_stats[] = { { "cpu%u_rx_packets", offsetof(struct netvsc_ethtool_pcpu_stats, rx_packets) }, |