Re: [PATCH net-next v3 1/2] net: stmmac: est: Drop frames causing HLBS error

From: Furong Xu

Date: Fri Sep 26 2025 - 09:25:29 EST


On Thu, 25 Sep 2025 22:06:13 +0800
Rohan G Thomas <rohan.g.thomas@xxxxxxxxxx> wrote:

> From: Rohan G Thomas <rohan.g.thomas@xxxxxxxxxx>
>
> Drop those frames causing Head-of-Line Blocking due to Scheduling
> (HLBS) error to avoid HLBS interrupt flooding and netdev watchdog
> timeouts due to blocked packets. Tx queues can be configured to drop
> those blocked packets by setting Drop Frames causing Scheduling Error
> (DFBS) bit of EST_CONTROL register.
>
> Also, add per queue HLBS drop count.
>
> Signed-off-by: Rohan G Thomas <rohan.g.thomas@xxxxxxxxxx>
> Reviewed-by: Matthew Gerlach <matthew.gerlach@xxxxxxxxxx>

Reviewed-by: Furong Xu <0x1207@xxxxxxxxx>