This patch adds rx_alloc helper function for GbEthernet found on
RZ/G2L SoC.
Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
---
drivers/net/ethernet/renesas/ravb_main.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index ee1066fedc4a..a08da7a37b92 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -430,8 +430,15 @@ static void ravb_ring_format(struct net_device *ndev, int q)
static void *ravb_rgeth_alloc_rx_desc(struct net_device *ndev, int q)
{
- /* Place holder */
- return NULL;
+ struct ravb_private *priv = netdev_priv(ndev);
+ unsigned int ring_size;
+
+ ring_size = sizeof(struct ravb_rx_desc) * (priv->num_rx_ring[q] + 1);
+
+ priv->rgeth_rx_ring[q] = dma_alloc_coherent(ndev->dev.parent, ring_size,
+ &priv->rx_desc_dma[q],
+ GFP_KERNEL);
+ return priv->rgeth_rx_ring[q];
}
static void *ravb_alloc_rx_desc(struct net_device *ndev, int q)
--
2.17.1
