回覆: [PATCH] net: ethernet: mtk_wed: increase W ED v2 WDMA RESV_BUFF to 0x80
Rex Lu (盧建銘) <[email protected]>
| Newsgroups | org.infradead.lists.linux-mediatek,org.infradead.lists.linux-arm-kernel,org.kernel.vger.linux-kernel,org.kernel.vger.netdev |
|---|---|
| Message-ID | <SI2PR03MB55456905E3D6E84E2337F6ADF3A02@SI2PR03MB5545.apcprd03.prod.outlook.com> |
Hi Lorenzo,
it is only for v2. v3 changed the hw design and fixed it. so this RESV_BUFF register was removed
Thanks
Rex Lu
________________________________________
寄件者: Lorenzo Bianconi
已傳送: 星期一, 2026 年 8 月 24 日 下午 03:48
收件者: Jakub Kicinski
副本: Shiji Yang; [email protected]; Rex Lu (盧建銘); Felix Fietkau; Andrew Lunn; David S. Miller; Eric Dumazet; Paolo Abeni; Matthias Brugger; AngeloGioacchino Del Regno; [email protected]; [email protected]; [email protected]
主旨: Re: [PATCH] net: ethernet: mtk_wed: increase WED v2 WDMA RESV_BUFF to 0x80
> 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