Re: [PATCH] net: ethernet: mtk_wed: increase WED v2 WDMA RESV_BUFF to 0x80

From: Lorenzo Bianconi

Date: Mon Aug 24 2026 - 03:54:09 EST


> On Aug 21, Jakub Kicinski wrote:
> > On Wed, 19 Aug 2026 21:07:07 +0800 Shiji Yang wrote:
> > > Change WDMA RESV_BUFF from 0x40 to 0x80 to avoid CDM TX FIFO overflow.
> > > Without this patch mt7986 and mt7981 may have WDMA TX hang issue. This
> > > patch was pulled from mtk-openwrt-feeds GPL open source project.
> >
> > Lorenzo, could you TAL? (incl. Simon's suggestion of the Fixes tag)

I am wondering if this is necessary for v3 as well.
@Rex any input on it?

Regarding Fixes tag, I think cf26df8833cc is the right one.

Regards,
Lorenzo

>
> sure, I am AFK now, I will review it next week.
>
> Regards,
> Lorenzo


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