openwrt/target/linux/generic/backport-5.10/610-v5.13-42-net-ethernet-mtk_eth_soc-remove-unnecessary-TX-queue.patch
John Audia 9e5d743422 kernel: bump 5.10 to 5.10.124
All patches automatically rebased.

Build system: x86_64
Build-tested: ipq806x/R7800

Signed-off-by: John Audia <therealgraysky@proton.me>
2022-06-27 00:57:15 +02:00

55 lines
1.7 KiB
Diff

From 16ef670789b252b221700adc413497ed2f941d8a Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Thu, 22 Apr 2021 22:20:59 -0700
Subject: [PATCH] net: ethernet: mtk_eth_soc: remove unnecessary TX queue stops
When running short on descriptors, only stop the queue for the netdev that
tx was attempted for. By the time something tries to send on the other
netdev, the ring might have some more room already.
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.c | 15 ++-------------
1 file changed, 2 insertions(+), 13 deletions(-)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -1163,17 +1163,6 @@ static void mtk_wake_queue(struct mtk_et
}
}
-static void mtk_stop_queue(struct mtk_eth *eth)
-{
- int i;
-
- for (i = 0; i < MTK_MAC_COUNT; i++) {
- if (!eth->netdev[i])
- continue;
- netif_stop_queue(eth->netdev[i]);
- }
-}
-
static netdev_tx_t mtk_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct mtk_mac *mac = netdev_priv(dev);
@@ -1194,7 +1183,7 @@ static netdev_tx_t mtk_start_xmit(struct
tx_num = mtk_cal_txd_req(skb);
if (unlikely(atomic_read(&ring->free_count) <= tx_num)) {
- mtk_stop_queue(eth);
+ netif_stop_queue(dev);
netif_err(eth, tx_queued, dev,
"Tx Ring full when queue awake!\n");
spin_unlock(&eth->page_lock);
@@ -1220,7 +1209,7 @@ static netdev_tx_t mtk_start_xmit(struct
goto drop;
if (unlikely(atomic_read(&ring->free_count) <= ring->thresh))
- mtk_stop_queue(eth);
+ netif_stop_queue(dev);
spin_unlock(&eth->page_lock);