+static int fe_set_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *ring)
+{
+ struct fe_priv *priv = netdev_priv(dev);
+
+ if ((ring->tx_pending < 2) ||
+ (ring->rx_pending < 2) ||
+ (ring->rx_pending > MAX_DMA_DESC) ||
+ (ring->tx_pending > MAX_DMA_DESC))
+ return -EINVAL;
+
+ dev->netdev_ops->ndo_stop(dev);
+
+ priv->tx_ring_size = BIT(fls(ring->tx_pending) - 1);
+ priv->rx_ring_size = BIT(fls(ring->rx_pending) - 1);
+
+ dev->netdev_ops->ndo_open(dev);
+
+ return 0;
+}
+