[PATCH net] net: stmmac: dwmac-socfpga: Set RX watchdog interrupt as broken
patchwork-bot+netdevbpf at kernel.org
patchwork-bot+netdevbpf at kernel.org
Tue Nov 26 03:10:28 PST 2024
Hello:
This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni at redhat.com>:
On Fri, 22 Nov 2024 15:12:55 +0100 you wrote:
> On DWMAC3 and later, there's a RX Watchdog interrupt that's used for
> interrupt coalescing. It's known to be buggy on some platforms, and
> dwmac-socfpga appears to be one of them. Changing the interrupt
> coalescing from ethtool doesn't appear to have any effect here.
>
> Without disabling RIWT (Received Interrupt Watchdog Timer, I
> believe...), we observe latencies while receiving traffic that amount to
> around ~0.4ms. This was discovered with NTP but can be easily reproduced
> with a simple ping. Without this patch :
>
> [...]
Here is the summary with links:
- [net] net: stmmac: dwmac-socfpga: Set RX watchdog interrupt as broken
https://git.kernel.org/netdev/net/c/407618d66dba
You are awesome, thank you!
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