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| author | Felix Fietkau <nbd@nbd.name> | 2020-08-27 06:39:48 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2020-09-01 17:01:56 +0200 |
| commit | b5d425af237dc03327078d6b9be178a38b5f8723 (patch) | |
| tree | 42448318e13eef9ff603b01ebc3088a32ce617ec /target/linux/generic/pending-5.4/770-03-net-ethernet-mtk_eth_soc-fix-unnecessary-tx-queue-st.patch | |
| parent | 6541028598b4a1079ee6182c5b50d6bcd9e21002 (diff) | |
| download | upstream-b5d425af237dc03327078d6b9be178a38b5f8723.tar.gz upstream-b5d425af237dc03327078d6b9be178a38b5f8723.tar.bz2 upstream-b5d425af237dc03327078d6b9be178a38b5f8723.zip | |
mediatek/ramips: unify ethernet driver fixes and add performance optimizations
Increase DMA burst size and tx ring size and optimize tx processing
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'target/linux/generic/pending-5.4/770-03-net-ethernet-mtk_eth_soc-fix-unnecessary-tx-queue-st.patch')
| -rw-r--r-- | target/linux/generic/pending-5.4/770-03-net-ethernet-mtk_eth_soc-fix-unnecessary-tx-queue-st.patch | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/target/linux/generic/pending-5.4/770-03-net-ethernet-mtk_eth_soc-fix-unnecessary-tx-queue-st.patch b/target/linux/generic/pending-5.4/770-03-net-ethernet-mtk_eth_soc-fix-unnecessary-tx-queue-st.patch new file mode 100644 index 0000000000..fd28bb8692 --- /dev/null +++ b/target/linux/generic/pending-5.4/770-03-net-ethernet-mtk_eth_soc-fix-unnecessary-tx-queue-st.patch @@ -0,0 +1,50 @@ +From: Felix Fietkau <nbd@nbd.name> +Date: Wed, 26 Aug 2020 16:55:54 +0200 +Subject: [PATCH] net: ethernet: mtk_eth_soc: fix unnecessary tx queue + stops + +When running short on descriptors, only stop the queue for the netdev that tx +was attempted for. By the time the something tries to send on the other netdev, +the ring might have some more room already + +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 +@@ -1126,17 +1126,6 @@ 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 int mtk_start_xmit(struct sk_buff *skb, struct net_device *dev) + { + struct mtk_mac *mac = netdev_priv(dev); +@@ -1157,7 +1146,7 @@ static int mtk_start_xmit(struct sk_buff + + 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); +@@ -1183,7 +1172,7 @@ static int mtk_start_xmit(struct sk_buff + goto drop; + + if (unlikely(atomic_read(&ring->free_count) <= ring->thresh)) +- mtk_stop_queue(eth); ++ netif_stop_queue(dev); + + spin_unlock(ð->page_lock); + |