[PATCH net-next 0/2] net: stmmac: Cleanup rx coalescing computation when using RIWT
patchwork-bot+netdevbpf at kernel.org
patchwork-bot+netdevbpf at kernel.org
Mon Aug 3 18:50:14 PDT 2026
Hello:
This series was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba at kernel.org>:
On Sun, 2 Aug 2026 13:40:12 +0200 you wrote:
> Currently when configuring interrupt coalescing on devices that relies
> on the Receive Interrupt Watchdog Timer feature of dwmac, the
> computation of the RIWT timings leads to off-by-one values when
> reporting the timings back to userspace.
>
> RIWT works by arming a watchdog timer upon receiving frames with the RI
> bit not set in the descriptor. The timer duration is expressed in units
> of 256 stmmac clock ticks, and therefore requires a bit of computation
> to derive it :
>
> [...]
Here is the summary with links:
- [net-next,1/2] net: stmmac: ethtool: Comment the magic numbers in RIWT computation
https://git.kernel.org/netdev/net-next/c/b6a89c8ef34f
- [net-next,2/2] net: stmmac: ethtool: Address off-by-one when reading the coal rx-usecs
https://git.kernel.org/netdev/net-next/c/ae88f78bc4eb
You are awesome, thank you!
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