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net: implement dev_disable_lro() hw_features compatibility 

Implement compatibility with new hw_features for dev_disable_lro().
This is a transition path - dev_disable_lro() should be later
integrated into netdev_fix_features() after all drivers are converted.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Michał Mirosław 2011-03-18 16:56:34 +00:00 committed by David S. Miller
parent 736561a01f
commit 27660515a2
3 changed files with 15 additions and 9 deletions
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3
include/linux/ethtool.h
View File

@ -648,6 +648,9 @@ enum ethtool_sfeatures_retval_bits {
#include <linux/rculist.h>
/* needed by dev_disable_lro() */
extern int __ethtool_set_flags(struct net_device *dev, u32 flags);
struct ethtool_rx_ntuple_flow_spec_container {
struct ethtool_rx_ntuple_flow_spec fs;
struct list_head list;

19
net/core/dev.c
View File

@ -1353,14 +1353,17 @@ EXPORT_SYMBOL(dev_close);
*/
void dev_disable_lro(struct net_device *dev)
{
if (dev->ethtool_ops && dev->ethtool_ops->get_flags &&
dev->ethtool_ops->set_flags) {
u32 flags = dev->ethtool_ops->get_flags(dev);
if (flags & ETH_FLAG_LRO) {
flags &= ~ETH_FLAG_LRO;
dev->ethtool_ops->set_flags(dev, flags);
}
}
u32 flags;
if (dev->ethtool_ops && dev->ethtool_ops->get_flags)
flags = dev->ethtool_ops->get_flags(dev);
else
flags = ethtool_op_get_flags(dev);
if (!(flags & ETH_FLAG_LRO))
return;
__ethtool_set_flags(dev, flags & ~ETH_FLAG_LRO);
WARN_ON(dev->features & NETIF_F_LRO);
}
EXPORT_SYMBOL(dev_disable_lro);

2
net/core/ethtool.c
View File

@ -513,7 +513,7 @@ static int ethtool_set_one_feature(struct net_device *dev,
}
}
static int __ethtool_set_flags(struct net_device *dev, u32 data)
int __ethtool_set_flags(struct net_device *dev, u32 data)
{
u32 changed;