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authorMichał Mirosław <mirq-linux@rere.qmqm.pl>2011-03-18 16:56:34 +0000
committerDavid S. Miller <davem@davemloft.net>2011-03-22 01:00:26 -0700
commit27660515a21bf913e3208ded3f27abd0529fae0e (patch)
treee07baa50f459b227eff6aa0dfbb6041f501bfb90
parent736561a01f11114146b1b7f82d486fa9c95828ef (diff)
downloadop-kernel-dev-27660515a21bf913e3208ded3f27abd0529fae0e.zip
op-kernel-dev-27660515a21bf913e3208ded3f27abd0529fae0e.tar.gz
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>
-rw-r--r--include/linux/ethtool.h3
-rw-r--r--net/core/dev.c19
-rw-r--r--net/core/ethtool.c2
3 files changed, 15 insertions, 9 deletions
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index b297f28..ae757bc 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -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;
diff --git a/net/core/dev.c b/net/core/dev.c
index 0b88eba..f453370 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -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);
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index a1086fb..24bd574 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -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;
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