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-rw-r--r--include/linux/ethtool.h2
-rw-r--r--net/core/ethtool.c53
2 files changed, 53 insertions, 2 deletions
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index b4b038b89ee6..27c67a542235 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -467,6 +467,8 @@ struct ethtool_ops {
#define ETHTOOL_GRXFH 0x00000029 /* Get RX flow hash configuration */
#define ETHTOOL_SRXFH 0x0000002a /* Set RX flow hash configuration */
+#define ETHTOOL_GGRO 0x0000002b /* Get GRO enable (ethtool_value) */
+#define ETHTOOL_SGRO 0x0000002c /* Set GRO enable (ethtool_value) */
/* compatibility with older code */
#define SPARC_ETH_GSET ETHTOOL_GSET
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 14ada537f895..947710a36ced 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;
}