From 6b4423b258b91032c50a5efca15d3d9bb194ea1d Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Thu, 22 Apr 2021 22:21:01 -0700 Subject: [PATCH] net: ethernet: mtk_eth_soc: increase DMA ring sizes 256 descriptors is not enough for multi-gigabit traffic under load on MT7622. Bump it to 512 to improve performance. Signed-off-by: Felix Fietkau Signed-off-by: Ilya Lipnitskiy Signed-off-by: David S. Miller --- drivers/net/ethernet/mediatek/mtk_eth_soc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h @@ -21,7 +21,7 @@ #define MTK_QDMA_PAGE_SIZE 2048 #define MTK_MAX_RX_LENGTH 1536 #define MTK_TX_DMA_BUF_LEN 0x3fff -#define MTK_DMA_SIZE 256 +#define MTK_DMA_SIZE 512 #define MTK_NAPI_WEIGHT 64 #define MTK_MAC_COUNT 2 #define MTK_RX_ETH_HLEN (VLAN_ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN)