lkml.org 
[lkml]   [2023]   [Jan]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 0/1] net: stmmac: do not stop RX_CLK in Rx LPI state for qcs404 SoC
From
Date
Hello:

This patch was applied to netdev/net.git (master)
by David S. Miller <davem@davemloft.net>:

On Fri, 27 Jan 2023 00:35:38 +0300 you wrote:
> This is a different, for one SoC only solution to the issue described below
> vs a generic one submitted earlier [1].
>
> On my qcs404 based board the ethernet MAC has issues with handling
> Rx LPI exit / Rx LPI entry interrupts.
>
> When in LPI mode the "refresh transmission" is received, the driver may
> see both "Rx LPI exit", and "Rx LPI entry" bits set in the single read from
> GMAC4_LPI_CTRL_STATUS register (vs "Rx LPI exit" first, and "Rx LPI entry"
> then). In this case an interrupt storm happens: the LPI interrupt is
> triggered every few microseconds - with all the status bits in the
> GMAC4_LPI_CTRL_STATUS register being read as zeros. This interrupt storm
> continues until a normal non-zero status is read from GMAC4_LPI_CTRL_STATUS
> register (single "Rx LPI exit", or "Tx LPI exit").
>
> [...]

Here is the summary with links:
- [1/1] net: stmmac: do not stop RX_CLK in Rx LPI state for qcs404 SoC
https://git.kernel.org/netdev/net/c/54aa39a513db

You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html


\
 
 \ /
  Last update: 2023-03-27 00:01    [W:0.049 / U:1.216 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site