1 files changed, 37 insertions, 1 deletions

diff --git a/drivers/net/mlx4/en_ethtool.c b/drivers/net/mlx4/en_ethtool.c
index d5afd037cd7..b275238fe70 100644
--- a/drivers/net/mlx4/en_ethtool.c
+++ b/drivers/net/mlx4/en_ethtool.c
@@ -387,6 +387,42 @@ static void mlx4_en_get_ringparam(struct net_device *dev,
         param->tx_pending = mdev->profile.prof[priv->port].tx_ring_size;
 }
 
+static int mlx4_ethtool_op_set_flags(struct net_device *dev, u32 data)
+{
+        struct mlx4_en_priv *priv = netdev_priv(dev);
+        struct mlx4_en_dev *mdev = priv->mdev;
+        int rc = 0;
+        int changed = 0;
+
+        if (data & ~ETH_FLAG_LRO)
+                return -EOPNOTSUPP;
+
+        if (data & ETH_FLAG_LRO) {
+                if (mdev->profile.num_lro == 0)
+                        return -EOPNOTSUPP;
+                if (!(dev->features & NETIF_F_LRO))
+                        changed = 1;
+        } else if (dev->features & NETIF_F_LRO) {
+                changed = 1;
+        }
+
+        if (changed) {
+                if (netif_running(dev)) {
+                        mutex_lock(&mdev->state_lock);
+                        mlx4_en_stop_port(dev);
+                }
+                dev->features ^= NETIF_F_LRO;
+                if (netif_running(dev)) {
+                        rc = mlx4_en_start_port(dev);
+                        if (rc)
+                                en_err(priv, "Failed to restart port\n");
+                        mutex_unlock(&mdev->state_lock);
+                }
+        }
+
+        return rc;
+}
+
 const struct ethtool_ops mlx4_en_ethtool_ops = {
         .get_drvinfo = mlx4_en_get_drvinfo,
         .get_settings = mlx4_en_get_settings,
@@ -415,7 +451,7 @@ const struct ethtool_ops mlx4_en_ethtool_ops = {
         .get_ringparam = mlx4_en_get_ringparam,
         .set_ringparam = mlx4_en_set_ringparam,
         .get_flags = ethtool_op_get_flags,
-        .set_flags = ethtool_op_set_flags,
+        .set_flags = mlx4_ethtool_op_set_flags,
 };