diff options
Diffstat (limited to 'package/kernel/qca-nss-dp/patches/0007-nss-dp-edma-v1-use-NAPI-GRO-by-default.patch')
| -rw-r--r-- | package/kernel/qca-nss-dp/patches/0007-nss-dp-edma-v1-use-NAPI-GRO-by-default.patch | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/package/kernel/qca-nss-dp/patches/0007-nss-dp-edma-v1-use-NAPI-GRO-by-default.patch b/package/kernel/qca-nss-dp/patches/0007-nss-dp-edma-v1-use-NAPI-GRO-by-default.patch new file mode 100644 index 00000000000..6fbe75dc1c4 --- /dev/null +++ b/package/kernel/qca-nss-dp/patches/0007-nss-dp-edma-v1-use-NAPI-GRO-by-default.patch @@ -0,0 +1,56 @@ +From c2df713569fe3bb671d1444c7bf758681081053c Mon Sep 17 00:00:00 2001 +From: Robert Marko <robimarko@gmail.com> +Date: Thu, 23 Jun 2022 14:18:50 +0200 +Subject: [PATCH 7/8] nss-dp: edma-v1: use NAPI GRO by default + +Utilize napi_gro_receive instead of plain netif_receive_skb on EDMA v1. + +Usually it provides quite a lot of RX speed improvements, however in some +cases it may lead to decreased performance as there is no checksum +offloading implemented. + +In cases where reduced performance is experienced its possible to disable +GRO by using ethtool. + +Signed-off-by: Robert Marko <robimarko@gmail.com> +--- + hal/dp_ops/edma_dp/edma_v1/edma_data_plane.c | 10 ++++++---- + hal/dp_ops/edma_dp/edma_v1/edma_tx_rx.c | 8 ++++++-- + 2 files changed, 12 insertions(+), 6 deletions(-) + +--- a/hal/dp_ops/edma_dp/edma_v1/edma_data_plane.c ++++ b/hal/dp_ops/edma_dp/edma_v1/edma_data_plane.c +@@ -597,10 +597,12 @@ drop: + */ + static void edma_if_set_features(struct nss_dp_data_plane_ctx *dpc) + { +- /* +- * TODO - add flags to support HIGHMEM/cksum offload VLAN +- * the features are enabled. +- */ ++ struct net_device *netdev = dpc->dev; ++ ++ netdev->features |= NETIF_F_GRO; ++ netdev->hw_features |= NETIF_F_GRO; ++ netdev->vlan_features |= NETIF_F_GRO; ++ netdev->wanted_features |= NETIF_F_GRO; + } + + /* TODO - check if this is needed */ +--- a/hal/dp_ops/edma_dp/edma_v1/edma_tx_rx.c ++++ b/hal/dp_ops/edma_dp/edma_v1/edma_tx_rx.c +@@ -410,8 +410,12 @@ static uint32_t edma_clean_rx(struct edm + if (unlikely(EDMA_RXPH_SERVICE_CODE_GET(rxph) == + NSS_PTP_EVENT_SERVICE_CODE)) + nss_phy_tstamp_rx_buf(ndev, skb); +- else +- netif_receive_skb(skb); ++ else { ++ if (likely(ndev->features & NETIF_F_GRO)) ++ napi_gro_receive(&ehw->napi, skb); ++ else ++ netif_receive_skb(skb); ++ } + + next_rx_desc: + /* |