ixgbe: allow tx of pre-formatted vlan tagged packets

[safe/jmp/linux-2.6] / drivers / net / ixgbe / ixgbe_main.c

diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 5292748..bd64387 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -5006,7 +5006,18 @@ static bool ixgbe_tx_csum(struct ixgbe_adapter *adapter,
                                    IXGBE_ADVTXD_DTYP_CTXT);
 
                if (skb->ip_summed == CHECKSUM_PARTIAL) {
-                       switch (skb->protocol) {
+                       __be16 protocol;
+
+                       if (skb->protocol == cpu_to_be16(ETH_P_8021Q)) {
+                               const struct vlan_ethhdr *vhdr =
+                                       (const struct vlan_ethhdr *)skb->data;
+
+                               protocol = vhdr->h_vlan_encapsulated_proto;
+                       } else {
+                               protocol = skb->protocol;
+                       }
+
+                       switch (protocol) {
                        case cpu_to_be16(ETH_P_IP):
                                type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_IPV4;
                                if (ip_hdr(skb)->protocol == IPPROTO_TCP)