diff options
| author | Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> | 2021-04-23 17:19:22 -0700 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2021-04-30 23:48:37 +0200 |
| commit | 0d6f20723047c02bd624f0384df9dc74ee075bc7 (patch) | |
| tree | f8ecc404999fafdf99475653201802143f1c60f2 /target/linux/generic/backport-5.10/610-v5.13-41-net-ethernet-mtk_eth_soc-reduce-MDIO-bus-access-late.patch | |
| parent | 4b14b42abfe263ea9f67ff4e29e563e1160005fc (diff) | |
| download | upstream-0d6f20723047c02bd624f0384df9dc74ee075bc7.tar.gz upstream-0d6f20723047c02bd624f0384df9dc74ee075bc7.tar.bz2 upstream-0d6f20723047c02bd624f0384df9dc74ee075bc7.zip | |
kernel: backport mtk_soc_eth fixes from v5.13
Fixes logic that leads to this error when booting mt7621 and other
devices that use the mediatek ethernet driver:
[ 23.144378] mtk_soc_eth 1e100000.ethernet: PPE table busy
The rest are mostly moved from pending-5.10 to backport-5.10 with a
couple of cleanups and improvements from upstream.
Refresh patches.
Links:
https://git.kernel.org/netdev/net-next/c/c5d66587b890
https://git.kernel.org/netdev/net-next/c/3f57d8c40fea
https://git.kernel.org/netdev/net-next/c/5196c4178549
https://git.kernel.org/netdev/net-next/c/787082ab9f7b
https://git.kernel.org/netdev/net-next/c/c30c4a827390
https://git.kernel.org/netdev/net-next/c/3630d519d7c3
https://git.kernel.org/netdev/net-next/c/16ef670789b2
https://git.kernel.org/netdev/net-next/c/59555a8d0dd3
https://git.kernel.org/netdev/net-next/c/6b4423b258b9
https://git.kernel.org/netdev/net-next/c/e9229ffd550b
https://git.kernel.org/netdev/net-next/c/4e6bf609569c
https://git.kernel.org/netdev/net-next/c/816ac3e6e67b
https://git.kernel.org/netdev/net-next/c/16769a8923fa
https://git.kernel.org/netdev/net-next/c/db2c7b353db3
https://git.kernel.org/netdev/net-next/c/fa817272c37e
https://git.kernel.org/netdev/net-next/c/3bc8e0aff23b
Fixes: f07fe36f22fc ("kernel: update flow offload patches to upstream version")
Cc: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
Diffstat (limited to 'target/linux/generic/backport-5.10/610-v5.13-41-net-ethernet-mtk_eth_soc-reduce-MDIO-bus-access-late.patch')
| -rw-r--r-- | target/linux/generic/backport-5.10/610-v5.13-41-net-ethernet-mtk_eth_soc-reduce-MDIO-bus-access-late.patch | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.10/610-v5.13-41-net-ethernet-mtk_eth_soc-reduce-MDIO-bus-access-late.patch b/target/linux/generic/backport-5.10/610-v5.13-41-net-ethernet-mtk_eth_soc-reduce-MDIO-bus-access-late.patch new file mode 100644 index 0000000000..7ebc3fa903 --- /dev/null +++ b/target/linux/generic/backport-5.10/610-v5.13-41-net-ethernet-mtk_eth_soc-reduce-MDIO-bus-access-late.patch @@ -0,0 +1,30 @@ +From 3630d519d7c3eab92567658690e44ffe0517d109 Mon Sep 17 00:00:00 2001 +From: Felix Fietkau <nbd@nbd.name> +Date: Thu, 22 Apr 2021 22:20:58 -0700 +Subject: [PATCH] net: ethernet: mtk_eth_soc: 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> +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 | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c ++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c +@@ -86,7 +86,7 @@ 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"); |