diff options
Diffstat (limited to 'target/linux/generic/backport-5.10/610-v5.13-42-net-ethernet-mtk_eth_soc-remove-unnecessary-TX-queue.patch')
| -rw-r--r-- | target/linux/generic/backport-5.10/610-v5.13-42-net-ethernet-mtk_eth_soc-remove-unnecessary-TX-queue.patch | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.10/610-v5.13-42-net-ethernet-mtk_eth_soc-remove-unnecessary-TX-queue.patch b/target/linux/generic/backport-5.10/610-v5.13-42-net-ethernet-mtk_eth_soc-remove-unnecessary-TX-queue.patch new file mode 100644 index 0000000000..67a7e3baed --- /dev/null +++ b/target/linux/generic/backport-5.10/610-v5.13-42-net-ethernet-mtk_eth_soc-remove-unnecessary-TX-queue.patch @@ -0,0 +1,54 @@ +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 +@@ -1131,17 +1131,6 @@ 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); +@@ -1162,7 +1151,7 @@ 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(ð->page_lock); +@@ -1188,7 +1177,7 @@ 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(ð->page_lock); + |