netdev - [PATCH net-next] bonding: support encapsulated ipv6 TSO

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Message-ID: <1444926131.25595.6.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Thu, 15 Oct 2015 09:22:11 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev <netdev@...r.kernel.org>
Subject: [PATCH net-next] bonding: support encapsulated ipv6 TSO

From: Eric Dumazet <edumazet@...gle.com>

If using a sixtofour device on top of a bonding device,
skb segmentation of TCP traffic is done right before calling
bonding xmit, because bonding only enables TSO for IPv4.

This patch improves single flow performance by about 120 % on my hosts,
because segmentation is deferred right before calling slave xmit.

Signed-off-by: Eric Dumazet <edumazet@...gle.com>
---
drivers/net/bonding/bond_main.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 90f2615428c0..d0f23cd6e236 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1071,7 +1071,7 @@ static netdev_features_t bond_fix_features(struct net_device *dev,
 				 NETIF_F_HIGHDMA | NETIF_F_LRO)
 
 #define BOND_ENC_FEATURES	(NETIF_F_ALL_CSUM | NETIF_F_SG | NETIF_F_RXCSUM |\
-				 NETIF_F_TSO)
+				 NETIF_F_ALL_TSO)
 
 static void bond_compute_features(struct bonding *bond)
 {


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