[PATCH net-next 4/4] cxgb4: implement ndo_features_check

[Ganesh Goudar]

Signed-off-by: Ganesh Goudar <ganes...@chelsio.com>
---
 drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c 
b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index d0e08f6..3293980 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -3115,6 +3115,24 @@ static void cxgb_add_udp_tunnel(struct net_device 
*netdev,
        }
 }
 
+static netdev_features_t cxgb_features_check(struct sk_buff *skb,
+                                            struct net_device *dev,
+                                            netdev_features_t features)
+{
+       struct port_info *pi = netdev_priv(dev);
+       struct adapter *adapter = pi->adapter;
+
+       if (CHELSIO_CHIP_VERSION(adapter->params.chip) < CHELSIO_T6)
+               return features;
+
+       /* Check if hw supports offload for this packet */
+       if (!skb->encapsulation || cxgb_encap_offload_supported(skb))
+               return features;
+
+       /* Offload is not supported for this encapsulated packet */
+       return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
+}
+
 static netdev_features_t cxgb_fix_features(struct net_device *dev,
                                           netdev_features_t features)
 {
@@ -3148,6 +3166,7 @@ static const struct net_device_ops cxgb4_netdev_ops = {
        .ndo_setup_tc         = cxgb_setup_tc,
        .ndo_udp_tunnel_add   = cxgb_add_udp_tunnel,
        .ndo_udp_tunnel_del   = cxgb_del_udp_tunnel,
+       .ndo_features_check   = cxgb_features_check,
        .ndo_fix_features     = cxgb_fix_features,
 };
 
-- 
2.1.0