net/vxlan: Share RX skb de-marking and checksum checks with ovs

Make sure the practice set by commit 0afb166 "vxlan: Add capability
of Rx checksum offload for inner packet" is applied when the skb
goes through the portion of the RX code which is shared between
vxlan netdevices and ovs vxlan port instances.

Cc: Joseph Gasparakis <joseph.gasparakis@intel.com>
Cc: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 10 insertions, 11 deletions

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index e1bc9252e3f4..026a313c2d2d 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1159,6 +1159,16 @@ static int vxlan_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
         if (!vs)
                 goto drop;
 
+        /* If the NIC driver gave us an encapsulated packet
+         * with the encapsulation mark, the device checksummed it
+         * for us. Otherwise force the upper layers to verify it.
+         */
+        if ((skb->ip_summed != CHECKSUM_UNNECESSARY && skb->ip_summed != CHECKSUM_PARTIAL) ||
+            !skb->encapsulation)
+                skb->ip_summed = CHECKSUM_NONE;
+
+        skb->encapsulation = 0;
+
         vs->rcv(vs, skb, vxh->vx_vni);
         return 0;
 
@@ -1217,17 +1227,6 @@ static void vxlan_rcv(struct vxlan_sock *vs,
 
         skb_reset_network_header(skb);
 
-        /* If the NIC driver gave us an encapsulated packet with
-         * CHECKSUM_UNNECESSARY and Rx checksum feature is enabled,
-         * leave the CHECKSUM_UNNECESSARY, the device checksummed it
-         * for us. Otherwise force the upper layers to verify it.
-         */
-        if ((skb->ip_summed != CHECKSUM_UNNECESSARY && skb->ip_summed != CHECKSUM_PARTIAL) ||
-            !skb->encapsulation || !(vxlan->dev->features & NETIF_F_RXCSUM))
-                skb->ip_summed = CHECKSUM_NONE;
-
-        skb->encapsulation = 0;
-
         if (oip6)
                 err = IP6_ECN_decapsulate(oip6, skb);
         if (oip)