[NET]: Add ethtool support for NETIF_F_HW_CSUM.

Signed-off-by: Jon Mason <jdmason@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index c85b210..a0ab26a 100644 (file)
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -256,6 +256,7 @@ struct net_device;
 u32 ethtool_op_get_link(struct net_device *dev);
 u32 ethtool_op_get_tx_csum(struct net_device *dev);
 int ethtool_op_set_tx_csum(struct net_device *dev, u32 data);
+int ethtool_op_set_tx_hw_csum(struct net_device *dev, u32 data);
 u32 ethtool_op_get_sg(struct net_device *dev);
 int ethtool_op_set_sg(struct net_device *dev, u32 data);
 u32 ethtool_op_get_tso(struct net_device *dev);

diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 2a56a52..8ec4848 100644 (file)
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -29,7 +29,7 @@ u32 ethtool_op_get_link(struct net_device *dev)
 
 u32 ethtool_op_get_tx_csum(struct net_device *dev)
 {
-       return (dev->features & NETIF_F_IP_CSUM) != 0;
+       return (dev->features & (NETIF_F_IP_CSUM | NETIF_F_HW_CSUM)) != 0;
 }
 
 int ethtool_op_set_tx_csum(struct net_device *dev, u32 data)
@@ -42,6 +42,15 @@ int ethtool_op_set_tx_csum(struct net_device *dev, u32 data)
        return 0;
 }
 
+int ethtool_op_set_tx_hw_csum(struct net_device *dev, u32 data)
+{
+       if (data)
+               dev->features |= NETIF_F_HW_CSUM;
+       else
+               dev->features &= ~NETIF_F_HW_CSUM;
+
+       return 0;
+}
 u32 ethtool_op_get_sg(struct net_device *dev)
 {
        return (dev->features & NETIF_F_SG) != 0;
@@ -823,3 +832,4 @@ EXPORT_SYMBOL(ethtool_op_get_tx_csum);
 EXPORT_SYMBOL(ethtool_op_set_sg);
 EXPORT_SYMBOL(ethtool_op_set_tso);
 EXPORT_SYMBOL(ethtool_op_set_tx_csum);
+EXPORT_SYMBOL(ethtool_op_set_tx_hw_csum);