enic: fix rx skb checksum

[cascardo/linux.git] / drivers / net / ethernet / cisco / enic / enic_main.c

diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
index 868d0f6..705f334 100644 (file)
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -1060,10 +1060,14 @@ static void enic_rq_indicate_buf(struct vnic_rq *rq,
                                     PKT_HASH_TYPE_L4 : PKT_HASH_TYPE_L3);
                }
 
-               if ((netdev->features & NETIF_F_RXCSUM) && !csum_not_calc) {
-                       skb->csum = htons(checksum);
-                       skb->ip_summed = CHECKSUM_COMPLETE;
-               }
+               /* Hardware does not provide whole packet checksum. It only
+                * provides pseudo checksum. Since hw validates the packet
+                * checksum but not provide us the checksum value. use
+                * CHECSUM_UNNECESSARY.
+                */
+               if ((netdev->features & NETIF_F_RXCSUM) && tcp_udp_csum_ok &&
+                   ipv4_csum_ok)
+                       skb->ip_summed = CHECKSUM_UNNECESSARY;
 
                if (vlan_stripped)
                        __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vlan_tci);