netdev - [PATCH net-next v7 2/6] openvswitch: Enable tunnel GSO for OVS bridge.

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Date:	Mon, 21 Jul 2014 23:29:49 -0700
From:	Pravin B Shelar <pshelar@...ira.com>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org, Pravin B Shelar <pshelar@...ira.com>
Subject: [PATCH net-next v7 2/6] openvswitch: Enable tunnel GSO for OVS bridge.

Following patch enables all available tunnel GSO features for OVS
bridge device so that ovs can use hardware offloads available to
underling device.

Signed-off-by: Pravin B Shelar <pshelar@...ira.com>
Acked-by: Andy Zhou <azhou@...ira.com>
---
 include/linux/netdev_features.h      | 8 ++++++++
 net/openvswitch/vport-internal_dev.c | 5 ++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h
index d99800c..dcfdecb 100644
--- a/include/linux/netdev_features.h
+++ b/include/linux/netdev_features.h
@@ -176,4 +176,12 @@ enum {
 				 NETIF_F_HW_VLAN_STAG_RX | \
 				 NETIF_F_HW_VLAN_STAG_TX)
 
+#define NETIF_F_GSO_ENCAP_ALL	(NETIF_F_GSO_GRE |			\
+				 NETIF_F_GSO_GRE_CSUM |			\
+				 NETIF_F_GSO_IPIP |			\
+				 NETIF_F_GSO_SIT |			\
+				 NETIF_F_GSO_UDP_TUNNEL |		\
+				 NETIF_F_GSO_UDP_TUNNEL_CSUM |		\
+				 NETIF_F_GSO_MPLS)
+
 #endif	/* _LINUX_NETDEV_FEATURES_H */
diff --git a/net/openvswitch/vport-internal_dev.c b/net/openvswitch/vport-internal_dev.c
index bd65855..8451612 100644
--- a/net/openvswitch/vport-internal_dev.c
+++ b/net/openvswitch/vport-internal_dev.c
@@ -140,11 +140,14 @@ static void do_setup(struct net_device *netdev)
 	netdev->tx_queue_len = 0;
 
 	netdev->features = NETIF_F_LLTX | NETIF_F_SG | NETIF_F_FRAGLIST |
-			   NETIF_F_HIGHDMA | NETIF_F_HW_CSUM | NETIF_F_GSO_SOFTWARE;
+			   NETIF_F_HIGHDMA | NETIF_F_HW_CSUM |
+			   NETIF_F_GSO_SOFTWARE | NETIF_F_GSO_ENCAP_ALL;
 
 	netdev->vlan_features = netdev->features;
+	netdev->hw_enc_features = netdev->features;
 	netdev->features |= NETIF_F_HW_VLAN_CTAG_TX;
 	netdev->hw_features = netdev->features & ~NETIF_F_LLTX;
+
 	eth_hw_addr_random(netdev);
 }
 
-- 
1.9.3

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