Re: [PATCH 1/2] net: ravb: Always process TX descriptor ring

From: Paul Barker
Date: Tue Mar 26 2024 - 05:55:29 EST


On 26/03/2024 09:38, Niklas Söderlund wrote:
> Hi Paul,
>
> Thanks for your work.
>
> On 2024-03-26 08:37:39 +0000, Paul Barker wrote:
>> The TX queue should be serviced each time the poll function is called,
>> even if the full RX work budget has been consumed. This prevents
>> starvation of the TX queue when RX bandwidth usage is high.
>
> Is this not a design decision? That the driver should prioritize Rx over
> Tx if there is contention. I have no opinion on if this design is good
> or bad, I let Sergey judge that.
>
>>
>> Fixes: a0d2f20650e8 ("Renesas Ethernet AVB PTP clock driver")
>
> However, I do not think it is a bug and should not have a fixes tag.
> Also this fixes tag is incorrect, this points to the commit where ravb.c
> was renamed ravb_main.c. ravb_poll() is not touched by this commit.

Sergey identified these as bugfixes in the following emails:
https://lore.kernel.org/netdev/a364963f-4e4f-dba5-cb59-b2125c14e8fc@xxxxxx/
https://lore.kernel.org/netdev/c58ab319-222b-5ab0-0924-7774a473e276@xxxxxx/

I got the wrong fixes tag though, it should be:
Fixes: c156633f1353 ("Renesas Ethernet AVB driver proper")

Thanks,

--
Paul Barker

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