gianfar: Add Scatter Gather support

Scatter Gather support in gianfar driver to handle fragmented frames on
the transmit side.

Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com>
Signed-off-by: Dai Haruki <dai.haruki@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/net/gianfar_ethtool.c b/drivers/net/gianfar_ethtool.c
index 3021057d54ae..59b3b5d98efe 100644
--- a/drivers/net/gianfar_ethtool.c
+++ b/drivers/net/gianfar_ethtool.c
@@ -475,6 +475,7 @@ static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rva
         /* Change the size */
         priv->rx_ring_size = rvals->rx_pending;
         priv->tx_ring_size = rvals->tx_pending;
+        priv->num_txbdfree = priv->tx_ring_size;
 
         /* Rebuild the rings with the new size */
         if (dev->flags & IFF_UP) {
@@ -623,6 +624,7 @@ const struct ethtool_ops gfar_ethtool_ops = {
         .get_tx_csum = gfar_get_tx_csum,
         .set_rx_csum = gfar_set_rx_csum,
         .set_tx_csum = gfar_set_tx_csum,
+        .set_sg = ethtool_op_set_sg,
         .get_msglevel = gfar_get_msglevel,
         .set_msglevel = gfar_set_msglevel,
 #ifdef CONFIG_PM