[PATCH 1/5] net: ethernet: mtk_eth_soc: account for vlan in rx header length

Felix Fietkau
2022-11-23T09:59:13Z

The network stack assumes that devices can handle an extra VLAN tag without
increasing the MTU

Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
index 7ca806b4de10..a553265c10de 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -34,7 +34,7 @@
#define MTK_QDMA_RING_SIZE 2048
#define MTK_DMA_SIZE 512
#define MTK_MAC_COUNT 2
-#define MTK_RX_ETH_HLEN (ETH_HLEN + ETH_FCS_LEN)
+#define MTK_RX_ETH_HLEN (VLAN_ETH_HLEN + ETH_FCS_LEN)
#define MTK_RX_HLEN (NET_SKB_PAD + MTK_RX_ETH_HLEN + NET_IP_ALIGN)
#define MTK_DMA_DUMMY_DESC 0xffffffff
#define MTK_DEFAULT_MSG_ENABLE (NETIF_MSG_DRV | \
--
2.38.1