Re: mlx5e:zero-prefix corruption during TCP DMA-BUF RX - help requested

From: Dragos Tatulea

Date: Thu Nov 05 2026 - 09:20:04 EST


On 23.10.26 15:14, Dragos Tatulea wrote:
> On 21.10.26 07:19, jiabin deng wrote:
>> Hi Dragos,
>>
>> [...]
>> Thank you for continuing to investigate this issue and for suggesting
>> the fix. I also greatly appreciate the time and effort you and the
>> other maintainers dedicate to the open-source community. As a student,
>> I am excited to have the opportunity to contribute to the community
>> and to learn from this process.
>>
> Thank you for your good analysis and fast response!
>
>> I would be happy to help prepare a formal patch with the test results.
>> Would you prefer to submit the fix yourself, or would it be helpful
>> for me to prepare and submit it based on your suggested change?
>>
> I am still waiting for input from the HW folks to understand if this
> change is needed for all SHAMPO cases or only specific P2P DMA
> cases.
>
> I think you should submit the fix as you did most of the work. Just
> give me some time to check the above. I'll ping you hopefully next
> week.
>
I got my answers. Feel free to go ahead send a fix. If you won't get
to, let me know so that we do it.

Thanks,
Dragos