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authorEric Dumazet <edumazet@google.com>2013-05-16 09:34:53 +0200
committerDavid S. Miller <davem@davemloft.net>2013-05-17 00:02:01 +0200
commitb0ce3508b25ea6fa10ae3ca254de1d695b521702 (patch)
treed5158ba0fe71d3807c563148c6cddb3757e7f348 /drivers/net
parentNET: mv643xx_eth: avoid lockdep dump on interface down (diff)
downloadlinux-b0ce3508b25ea6fa10ae3ca254de1d695b521702.tar.xz
linux-b0ce3508b25ea6fa10ae3ca254de1d695b521702.zip
bonding: allow TSO being set on bonding master
In some situations, we need to disable TSO on bonding slaves. bonding device automatically unset TSO in bond_fix_features(), and performance is not good because : 1) We consume more cpu cycles. 2) GSO segmentation has some bugs leading to out of order TCP packets if this segmentation is done before virtual device. This particular problem will be addressed in a separate patch. This patch allows TSO being set/unset on the bonding master, so that GSO segmentation is done after bonding layer. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Michał Mirosław <mirqus@gmail.com> Cc: Jay Vosburgh <fubar@us.ibm.com> Cc: Andy Gospodarek <andy@greyhouse.net> Cc: Maciej Żenczykowski <maze@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Yuchung Cheng <ycheng@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/bonding/bond_main.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index d0aade04e49a..449ad9bbe45c 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1362,6 +1362,7 @@ static netdev_features_t bond_fix_features(struct net_device *dev,
slave->dev->features,
mask);
}
+ features = netdev_add_tso_features(features, mask);
out:
read_unlock(&bond->lock);