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netdev: ethtool RXHASH flag

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This adds ethtool and device feature flag to allow control
of receive hashing offload.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
stephen hemminger
2010-03-29 14:47:27 +00:00
committed by David S. Miller
parent 757b77e2b2
commit b00fabb402
3 changed files with 8 additions and 1 deletions
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7
net/core/ethtool.c
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@@ -121,7 +121,7 @@ int ethtool_op_set_ufo(struct net_device *dev, u32 data)
* NETIF_F_xxx values in include/linux/netdevice.h
*/
static const u32 flags_dup_features =
(ETH_FLAG_LRO | ETH_FLAG_NTUPLE);
(ETH_FLAG_LRO | ETH_FLAG_NTUPLE | ETH_FLAG_RXHASH);
u32 ethtool_op_get_flags(struct net_device *dev)
{
@@ -152,6 +152,11 @@ int ethtool_op_set_flags(struct net_device *dev, u32 data)
features &= ~NETIF_F_NTUPLE;
}
if (data & ETH_FLAG_RXHASH)
features |= NETIF_F_RXHASH;
else
features &= ~NETIF_F_RXHASH;
dev->features = features;
return 0;
}