diff options
Diffstat (limited to 'target/linux/generic/backport-5.15/610-v5.13-44-net-ethernet-mtk_eth_soc-increase-DMA-ring-sizes.patch')
| -rw-r--r-- | target/linux/generic/backport-5.15/610-v5.13-44-net-ethernet-mtk_eth_soc-increase-DMA-ring-sizes.patch | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.15/610-v5.13-44-net-ethernet-mtk_eth_soc-increase-DMA-ring-sizes.patch b/target/linux/generic/backport-5.15/610-v5.13-44-net-ethernet-mtk_eth_soc-increase-DMA-ring-sizes.patch new file mode 100644 index 0000000000..d695f0fb8a --- /dev/null +++ b/target/linux/generic/backport-5.15/610-v5.13-44-net-ethernet-mtk_eth_soc-increase-DMA-ring-sizes.patch @@ -0,0 +1,26 @@ +From 6b4423b258b91032c50a5efca15d3d9bb194ea1d Mon Sep 17 00:00:00 2001 +From: Felix Fietkau <nbd@nbd.name> +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 <nbd@nbd.name> +Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + 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) |