veth: convert to hw_features

This should probably get TSO available as it's basically a loopback device.
Offloads are left disabled by default - as before.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 40 deletions

diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index 2de9b90c5f8f..654228849951 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -36,7 +36,6 @@ struct veth_net_stats {
 struct veth_priv {
         struct net_device *peer;
         struct veth_net_stats __percpu *stats;
-        unsigned ip_summed;
 };
 
 /*
@@ -99,47 +98,10 @@ static void veth_get_ethtool_stats(struct net_device *dev,
         data[0] = priv->peer->ifindex;
 }
 
-static u32 veth_get_rx_csum(struct net_device *dev)
-{
-        struct veth_priv *priv;
-
-        priv = netdev_priv(dev);
-        return priv->ip_summed == CHECKSUM_UNNECESSARY;
-}
-
-static int veth_set_rx_csum(struct net_device *dev, u32 data)
-{
-        struct veth_priv *priv;
-
-        priv = netdev_priv(dev);
-        priv->ip_summed = data ? CHECKSUM_UNNECESSARY : CHECKSUM_NONE;
-        return 0;
-}
-
-static u32 veth_get_tx_csum(struct net_device *dev)
-{
-        return (dev->features & NETIF_F_NO_CSUM) != 0;
-}
-
-static int veth_set_tx_csum(struct net_device *dev, u32 data)
-{
-        if (data)
-                dev->features |= NETIF_F_NO_CSUM;
-        else
-                dev->features &= ~NETIF_F_NO_CSUM;
-        return 0;
-}
-
 static const struct ethtool_ops veth_ethtool_ops = {
         .get_settings           = veth_get_settings,
         .get_drvinfo            = veth_get_drvinfo,
         .get_link               = ethtool_op_get_link,
-        .get_rx_csum            = veth_get_rx_csum,
-        .set_rx_csum            = veth_set_rx_csum,
-        .get_tx_csum            = veth_get_tx_csum,
-        .set_tx_csum            = veth_set_tx_csum,
-        .get_sg                 = ethtool_op_get_sg,
-        .set_sg                 = ethtool_op_set_sg,
         .get_strings            = veth_get_strings,
         .get_sset_count         = veth_get_sset_count,
         .get_ethtool_stats      = veth_get_ethtool_stats,
@@ -168,8 +130,9 @@ static netdev_tx_t veth_xmit(struct sk_buff *skb, struct net_device *dev)
 
         /* don't change ip_summed == CHECKSUM_PARTIAL, as that
            will cause bad checksum on forwarded packets */
-        if (skb->ip_summed == CHECKSUM_NONE)
-                skb->ip_summed = rcv_priv->ip_summed;
+        if (skb->ip_summed == CHECKSUM_NONE &&
+            rcv->features & NETIF_F_RXCSUM)
+                skb->ip_summed = CHECKSUM_UNNECESSARY;
 
         length = skb->len;
         if (dev_forward_skb(rcv, skb) != NET_RX_SUCCESS)
@@ -304,6 +267,8 @@ static void veth_setup(struct net_device *dev)
         dev->ethtool_ops = &veth_ethtool_ops;
         dev->features |= NETIF_F_LLTX;
         dev->destructor = veth_dev_free;
+
+        dev->hw_features = NETIF_F_NO_CSUM | NETIF_F_SG | NETIF_F_RXCSUM;
 }
 
 /*