From f0cc5f6c0a72b7da9ed5915cf561e2f81d514c68 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sun, 13 Sep 2020 09:34:37 +0200 Subject: ramips/mediatek: improve GRO performance, fix PPE packet parsing Backport upstream changes to initialize GDM settings and reset PPE Allow GMAC to recognize the special tag to fix PPE packet parsing Improve GRO performance by passing PPE L4 hash as skb hash Signed-off-by: Felix Fietkau --- ...t-mtk_eth_soc-set-PPE-flow-hash-as-skb-ha.patch | 23 ++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 target/linux/generic/pending-5.4/770-14-net-ethernet-mtk_eth_soc-set-PPE-flow-hash-as-skb-ha.patch (limited to 'target/linux/generic/pending-5.4/770-14-net-ethernet-mtk_eth_soc-set-PPE-flow-hash-as-skb-ha.patch') diff --git a/target/linux/generic/pending-5.4/770-14-net-ethernet-mtk_eth_soc-set-PPE-flow-hash-as-skb-ha.patch b/target/linux/generic/pending-5.4/770-14-net-ethernet-mtk_eth_soc-set-PPE-flow-hash-as-skb-ha.patch new file mode 100644 index 0000000000..384af9d21d --- /dev/null +++ b/target/linux/generic/pending-5.4/770-14-net-ethernet-mtk_eth_soc-set-PPE-flow-hash-as-skb-ha.patch @@ -0,0 +1,23 @@ +From: Felix Fietkau +Date: Sun, 13 Sep 2020 08:27:24 +0200 +Subject: [PATCH] net: ethernet: mtk_eth_soc: set PPE flow hash as skb hash + if present + +This improves GRO performance + +Signed-off-by: Felix Fietkau +--- + +--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c ++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c +@@ -1318,6 +1318,10 @@ static int mtk_poll_rx(struct napi_struc + skb->protocol = eth_type_trans(skb, netdev); + bytes += pktlen; + ++ hash = trxd.rxd4 & GENMASK(13, 0); ++ if (hash != GENMASK(13, 0)) ++ skb_set_hash(skb, hash, PKT_HASH_TYPE_L4); ++ + if (netdev->features & NETIF_F_HW_VLAN_CTAG_RX && + (trxd.rxd2 & RX_DMA_VTAG)) + __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), -- cgit v1.2.3