[RFC/PATCH 15/18] ravb: Add rx_alloc helper function for GbEthernet
From: Biju Das <biju.das.jz@bp.renesas.com>
Date: 2021-09-23 14:09:14
Also in:
linux-renesas-soc
Subsystem:
networking drivers, renesas ethernet avb driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Niklas Söderlund, Linus Torvalds
This patch adds rx_alloc helper function for GbEthernet found on RZ/G2L SoC. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> --- 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