netdev - [PATCH net-next v4 3/3] net: veth: Set features for MPLS

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Message-Id: <1472094645-11452-4-git-send-email-dsa@cumulusnetworks.com>
Date:   Wed, 24 Aug 2016 20:10:45 -0700
From:   David Ahern <dsa@...ulusnetworks.com>
To:     netdev@...r.kernel.org, davem@...emloft.net
Cc:     buytenh@...tstofly.org, simon.horman@...ronome.com,
        ebiederm@...ssion.com, rshearma@...cade.com, tom@...bertland.com,
        tgraf@...g.ch, olivier.dugeon@...nge.com,
        alexander.duyck@...il.com, roopa@...ulusnetworks.com,
        David Ahern <dsa@...ulusnetworks.com>
Subject: [PATCH net-next v4 3/3] net: veth: Set features for MPLS

veth does not really transmit packets only moves the skb from one
netdev to another so gso and checksum is not really needed. Add
the features to mpls_features to get the same benefit and performance
with MPLS as without it.

Reported-by: Lennert Buytenhek <buytenh@...tstofly.org>
Signed-off-by: David Ahern <dsa@...ulusnetworks.com>
---
 drivers/net/veth.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index f37a6e61d4ad..5db320a4d5cf 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -340,6 +340,7 @@ static void veth_setup(struct net_device *dev)
 
 	dev->hw_features = VETH_FEATURES;
 	dev->hw_enc_features = VETH_FEATURES;
+	dev->mpls_features = NETIF_F_HW_CSUM | NETIF_F_GSO_SOFTWARE;
 }
 
 /*
-- 
2.1.4