openwrt/target/linux/generic/pending-5.15/702-net-ethernet-mtk_eth_soc-enable-threaded-NAPI.patch
Daniel Golle 1673b7dca3 kernel: backport fixes for MediaTek Ethernet driver
Backport patches from net-next which fix possible memory and resource
leaks in the error codepaths of WED initialization.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2022-11-02 15:53:34 +00:00

42 lines
1.3 KiB
Diff

From: Felix Fietkau <nbd@nbd.name>
Date: Mon, 21 Mar 2022 20:39:59 +0100
Subject: [PATCH] net: ethernet: mtk_eth_soc: enable threaded NAPI
This can improve performance under load by ensuring that NAPI processing is
not pinned on CPU 0.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -2802,8 +2802,8 @@ static irqreturn_t mtk_handle_irq_rx(int
eth->rx_events++;
if (likely(napi_schedule_prep(&eth->rx_napi))) {
- __napi_schedule(&eth->rx_napi);
mtk_rx_irq_disable(eth, eth->soc->txrx.rx_irq_done_mask);
+ __napi_schedule(&eth->rx_napi);
}
return IRQ_HANDLED;
@@ -2815,8 +2815,8 @@ static irqreturn_t mtk_handle_irq_tx(int
eth->tx_events++;
if (likely(napi_schedule_prep(&eth->tx_napi))) {
- __napi_schedule(&eth->tx_napi);
mtk_tx_irq_disable(eth, MTK_TX_DONE_INT);
+ __napi_schedule(&eth->tx_napi);
}
return IRQ_HANDLED;
@@ -4118,6 +4118,8 @@ static int mtk_probe(struct platform_dev
* for NAPI to work
*/
init_dummy_netdev(&eth->dummy_dev);
+ eth->dummy_dev.threaded = 1;
+ strcpy(eth->dummy_dev.name, "mtk_eth");
netif_napi_add(&eth->dummy_dev, &eth->tx_napi, mtk_napi_tx,
NAPI_POLL_WEIGHT);
netif_napi_add(&eth->dummy_dev, &eth->rx_napi, mtk_napi_rx,