[PATCH net-next v2] net: stmmac: est: Drop frames causing HLBS error

G Thomas, Rohan rohan.g.thomas at altera.com
Wed Sep 17 19:20:59 PDT 2025


Hi Jakub,

Thanks for reviewing the patch.

On 9/18/2025 4:03 AM, Jakub Kicinski wrote:
> On Mon, 15 Sep 2025 16:22:14 +0800 Rohan G Thomas via B4 Relay wrote:
>> From: Rohan G Thomas <rohan.g.thomas at altera.com>
>>
>> Drop those frames causing HLBS error to avoid HLBS interrupt
>> flooding and netdev watchdog timeouts due to blocked packets.
>> Also add HLBS frame drops to taprio stats.
> 
> I think these should be two separate commits.

Sure, I will do in the next version.

> 
> Also are the HLBS and DFBS acronyms obvious to everyone who works
> on TSN?

Even though the term Head-Of-Line Blocking is obvious, the acronyms HLBS
and DFBS are from the dwmac and dwxgmac databooks.

HLBS => Head-Of-Line Blocking due to Scheduling
DFBS => Drop Frames causing Scheduling Error

I’ll expand these acronyms in the next version for clarity.

Best Regards,
Rohan



More information about the linux-arm-kernel mailing list