diff options
Diffstat (limited to 'target/linux/ramips/patches-5.4/0401-net-ethernet-mediatek-significantly-reduce-mdio-bus-.patch')
| -rw-r--r-- | target/linux/ramips/patches-5.4/0401-net-ethernet-mediatek-significantly-reduce-mdio-bus-.patch | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/target/linux/ramips/patches-5.4/0401-net-ethernet-mediatek-significantly-reduce-mdio-bus-.patch b/target/linux/ramips/patches-5.4/0401-net-ethernet-mediatek-significantly-reduce-mdio-bus-.patch deleted file mode 100644 index c2ba9964e9..0000000000 --- a/target/linux/ramips/patches-5.4/0401-net-ethernet-mediatek-significantly-reduce-mdio-bus-.patch +++ /dev/null @@ -1,26 +0,0 @@ -From: Felix Fietkau <nbd@nbd.name> -Date: Mon, 8 Jun 2020 17:02:39 +0200 -Subject: [PATCH] net: ethernet: mediatek: significantly reduce mdio bus - access latency - -usleep_range often ends up sleeping much longer than the 10-20us provided -as a range here. This causes significant latency in mdio bus acceses, -which easily adds multiple seconds to the boot time on MT7621 when polling -DSA slave ports. -Use cond_resched instead of usleep_range, since the MDIO access does not -take much time - -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 -@@ -85,7 +85,7 @@ static int mtk_mdio_busy_wait(struct mtk - return 0; - if (time_after(jiffies, t_start + PHY_IAC_TIMEOUT)) - break; -- usleep_range(10, 20); -+ cond_resched(); - } - - dev_err(eth->dev, "mdio: MDIO timeout\n"); |