X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=net%2Fcore%2Fethtool.c;h=947710a36ced534e0599a59dbd7860600e833376;hb=37ba1b62836d2440980cf553c49556393b05c6cd;hp=14ada537f895c10f86006b63b4ba4f312eb610d3;hpb=85e9ca333d03fbd56b9e123c8456f0d98e20faad;p=mv-sheeva.git

diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 14ada537f89..947710a36ce 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -528,6 +528,22 @@ static int ethtool_set_tx_csum(struct net_device *dev, char __user *useraddr)
 	return dev->ethtool_ops->set_tx_csum(dev, edata.data);
 }
 
+static int ethtool_set_rx_csum(struct net_device *dev, char __user *useraddr)
+{
+	struct ethtool_value edata;
+
+	if (!dev->ethtool_ops->set_rx_csum)
+		return -EOPNOTSUPP;
+
+	if (copy_from_user(&edata, useraddr, sizeof(edata)))
+		return -EFAULT;
+
+	if (!edata.data && dev->ethtool_ops->set_sg)
+		dev->features &= ~NETIF_F_GRO;
+
+	return dev->ethtool_ops->set_rx_csum(dev, edata.data);
+}
+
 static int ethtool_set_sg(struct net_device *dev, char __user *useraddr)
 {
 	struct ethtool_value edata;
@@ -599,6 +615,34 @@ static int ethtool_set_gso(struct net_device *dev, char __user *useraddr)
 	return 0;
 }
 
+static int ethtool_get_gro(struct net_device *dev, char __user *useraddr)
+{
+	struct ethtool_value edata = { ETHTOOL_GGRO };
+
+	edata.data = dev->features & NETIF_F_GRO;
+	if (copy_to_user(useraddr, &edata, sizeof(edata)))
+		 return -EFAULT;
+	return 0;
+}
+
+static int ethtool_set_gro(struct net_device *dev, char __user *useraddr)
+{
+	struct ethtool_value edata;
+
+	if (copy_from_user(&edata, useraddr, sizeof(edata)))
+		return -EFAULT;
+
+	if (edata.data) {
+		if (!dev->ethtool_ops->get_rx_csum ||
+		    !dev->ethtool_ops->get_rx_csum(dev))
+			return -EINVAL;
+		dev->features |= NETIF_F_GRO;
+	} else
+		dev->features &= ~NETIF_F_GRO;
+
+	return 0;
+}
+
 static int ethtool_self_test(struct net_device *dev, char __user *useraddr)
 {
 	struct ethtool_test test;
@@ -932,8 +976,7 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
 				       dev->ethtool_ops->get_rx_csum);
 		break;
 	case ETHTOOL_SRXCSUM:
-		rc = ethtool_set_value(dev, useraddr,
-				       dev->ethtool_ops->set_rx_csum);
+		rc = ethtool_set_rx_csum(dev, useraddr);
 		break;
 	case ETHTOOL_GTXCSUM:
 		rc = ethtool_get_value(dev, useraddr, ethcmd,
@@ -1014,6 +1057,12 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
 	case ETHTOOL_SRXFH:
 		rc = ethtool_set_rxhash(dev, useraddr);
 		break;
+	case ETHTOOL_GGRO:
+		rc = ethtool_get_gro(dev, useraddr);
+		break;
+	case ETHTOOL_SGRO:
+		rc = ethtool_set_gro(dev, useraddr);
+		break;
 	default:
 		rc = -EOPNOTSUPP;
 	}