From: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
To: Felix Fietkau <nbd@nbd.name>, John Crispin <john@phrozen.org>,
Sean Wang <sean.wang@mediatek.com>,
Mark Lee <Mark-MC.Lee@mediatek.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org
Cc: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
Subject: [PATCH net-next v2 06/15] net: ethernet: mtk_eth_soc: remove unnecessary TX queue stops
Date: Thu, 22 Apr 2021 22:20:59 -0700 [thread overview]
Message-ID: <20210423052108.423853-7-ilya.lipnitskiy@gmail.com> (raw)
In-Reply-To: <20210423052108.423853-1-ilya.lipnitskiy@gmail.com>
From: Felix Fietkau <nbd@nbd.name>
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>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 15 ++-------------
1 file changed, 2 insertions(+), 13 deletions(-)
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index d992d4f1f400..e6f832dde9a6 100644
--- 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_eth *eth)
}
}
-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 sk_buff *skb, struct net_device *dev)
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 sk_buff *skb, struct net_device *dev)
goto drop;
if (unlikely(atomic_read(&ring->free_count) <= ring->thresh))
- mtk_stop_queue(eth);
+ netif_stop_queue(dev);
spin_unlock(ð->page_lock);
--
2.31.1
next prev parent reply other threads:[~2021-04-23 5:21 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-23 5:20 [PATCH net-next v2 00/15] mtk_eth_soc: fixes and performance improvements Ilya Lipnitskiy
2021-04-23 5:20 ` [PATCH net-next v2 01/15] net: ethernet: mtk_eth_soc: fix RX VLAN offload Ilya Lipnitskiy
2021-04-23 5:20 ` [PATCH net-next v2 02/15] net: ethernet: mtk_eth_soc: unmap RX data before calling build_skb Ilya Lipnitskiy
2021-04-23 5:20 ` [PATCH net-next v2 03/15] net: ethernet: mtk_eth_soc: fix build_skb cleanup Ilya Lipnitskiy
2021-04-23 5:20 ` [PATCH net-next v2 04/15] net: ethernet: mtk_eth_soc: use napi_consume_skb Ilya Lipnitskiy
2021-04-23 5:20 ` [PATCH net-next v2 05/15] net: ethernet: mtk_eth_soc: reduce MDIO bus access latency Ilya Lipnitskiy
2021-04-23 5:20 ` Ilya Lipnitskiy [this message]
2021-04-23 5:21 ` [PATCH net-next v2 07/15] net: ethernet: mtk_eth_soc: use larger burst size for QDMA TX Ilya Lipnitskiy
2021-04-23 5:21 ` [PATCH net-next v2 08/15] net: ethernet: mtk_eth_soc: increase DMA ring sizes Ilya Lipnitskiy
2021-04-23 5:21 ` [PATCH net-next v2 09/15] net: ethernet: mtk_eth_soc: implement dynamic interrupt moderation Ilya Lipnitskiy
2021-04-23 5:21 ` [PATCH net-next v2 10/15] net: ethernet: mtk_eth_soc: cache HW pointer of last freed TX descriptor Ilya Lipnitskiy
2021-04-23 5:21 ` [PATCH net-next v2 11/15] net: ethernet: mtk_eth_soc: only read the full RX descriptor if DMA is done Ilya Lipnitskiy
2021-04-23 5:21 ` [PATCH net-next v2 12/15] net: ethernet: mtk_eth_soc: reduce unnecessary interrupts Ilya Lipnitskiy
2021-04-23 5:21 ` [PATCH net-next v2 13/15] net: ethernet: mtk_eth_soc: rework NAPI callbacks Ilya Lipnitskiy
2021-04-23 5:21 ` [PATCH net-next v2 14/15] net: ethernet: mtk_eth_soc: set PPE flow hash as skb hash if present Ilya Lipnitskiy
2021-04-23 5:21 ` [PATCH net-next v2 15/15] net: ethernet: mtk_eth_soc: use iopoll.h macro for DMA init Ilya Lipnitskiy
2021-04-23 21:00 ` [PATCH net-next v2 00/15] mtk_eth_soc: fixes and performance improvements patchwork-bot+netdevbpf
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