[precise][sru][PATCH 2/5] veth: extend device features
Chris J Arges
chris.j.arges at canonical.com
Tue Mar 25 21:03:04 UTC 2014
From: Eric Dumazet <edumazet at google.com>
BugLink: http://bugs.launchpad.net/bugs/1201869
veth is lacking most modern facilities, like SG, checksums, TSO.
It makes sense to extend dev->features to get them, or GRO aggregation
is defeated by a forced segmentation.
Reported-by: Andrew Vagin <avagin at parallels.com>
Signed-off-by: Eric Dumazet <edumazet at google.com>
Cc: Michał Mirosław <mirq-linux at rere.qmqm.pl>
Signed-off-by: David S. Miller <davem at davemloft.net>
(cherry picked from commit 8093315a91340bca52549044975d8c7f673b28a1)
Conflicts:
drivers/net/veth.c
---
drivers/net/veth.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index 675a12c..d123597 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -239,6 +239,10 @@ static const struct net_device_ops veth_netdev_ops = {
.ndo_set_mac_address = eth_mac_addr,
};
+#define VETH_FEATURES (NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \
+ NETIF_F_HW_CSUM | NETIF_F_RXCSUM | NETIF_F_HIGHDMA | \
+ NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX)
+
static void veth_setup(struct net_device *dev)
{
ether_setup(dev);
@@ -248,9 +252,10 @@ static void veth_setup(struct net_device *dev)
dev->netdev_ops = &veth_netdev_ops;
dev->ethtool_ops = &veth_ethtool_ops;
dev->features |= NETIF_F_LLTX;
+ dev->features |= VETH_FEATURES;
dev->destructor = veth_dev_free;
- dev->hw_features = NETIF_F_NO_CSUM | NETIF_F_SG | NETIF_F_RXCSUM;
+ dev->hw_features = VETH_FEATURES;
}
/*
--
1.7.9.5
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