From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6BCB83EDE68; Mon, 24 Aug 2026 09:05:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787562314; cv=none; b=H7Wx6o6p/YmXzLuPnyIAEYGzdZkgNCf1H1caCB22HZP7f9kIaCQed3fapazTohxvHGl9rsjNn/S3A3fjsQOhXNL/EnxasCGFAJ6MuIzUrvKkcjhVREewF+TO0+Zxk4YcXV4YNCa+Eta02T3Xc1mOPOB3G+BVbN1FE5GObLKfj9Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787562314; c=relaxed/simple; bh=yRYLXWTdTw42xj1idXvAfl17X4aYo+o509VGHDIx5Wc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=np9zO5JhXH10xK+TEYWBYCs3yHiqxO+w836dlJnb9zQC6OKt6wF7G+GHqOoixFEuhe68bCel8Ndlk+P35wHXUaFxus/VRfXxHX+YOBXhlGCJ42EsTJz4q3m8uXu3DRqnse4iH6Pa/LfJcGD4BlXbbk9SqjwdSGqQZDG3hYHL5XQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bIqjI0sY; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="bIqjI0sY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 764EB1F00ACA; Mon, 24 Aug 2026 09:05:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787562313; bh=KQZI73q5Exni8BU+8wGbesz3YhWlzsOsEvNqr/vzRXY=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=bIqjI0sYAmyaFUTpNpQZyf7W23Y2EEH5UgfN8f3Nk3XmnegBLOEYH5SksLDdDq7DG mL18wuC5U5foSBe68y/hyZduAH/P1GsKj/i8A2TbFUyMDj9HwcVssoN67+5wEJCPpb tMIkpkO5kG4diHAbNYW2ymcYMBfe36t9bv6d04us0Lqcvd93yWfXs52qPactTFR8h2 HueIqjRPGpq/C58IsO389MW1qDaGtYNf1G/Odfg5oZk5tpQE31C8tT0p0jh3wQJlKJ bojPPxkDhPD4H/cdZieqFYO3tiapgJVOW/FNjcnbBchfbHpOV34AbJcyPMsfhP9X7d a0U3fwOI1XlLQ== Date: Mon, 24 Aug 2026 11:05:10 +0200 From: Lorenzo Bianconi To: Rex Lu =?utf-8?B?KOebp+W7uumKmCk=?= Cc: Jakub Kicinski , Shiji Yang , "netdev@vger.kernel.org" , Felix Fietkau , Andrew Lunn , "David S. Miller" , Eric Dumazet , Paolo Abeni , Matthias Brugger , AngeloGioacchino Del Regno , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-mediatek@lists.infradead.org" Subject: Re: =?utf-8?B?5Zue6KaGOiBbUEFUQ0hdIG5ldA==?= =?utf-8?Q?=3A?= ethernet: mtk_wed: increase WED v2 WDMA RESV_BUFF to 0x80 Message-ID: References: <20260821174121.326f3c49@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="6n3KvZE76g7zMrBv" Content-Disposition: inline In-Reply-To: --6n3KvZE76g7zMrBv Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable > Hi Lorenzo, >=20 > it is only for v2. v3 changed the hw design and fixed it. so this R= ESV_BUFF register was removed =20 Hi Rex, thx for pointing this out. In this case: Acked-by: Lorenzo Bianconi >=20 > Thanks > Rex Lu > ________________________________________ > =E5=AF=84=E4=BB=B6=E8=80=85: Lorenzo Bianconi > =E5=B7=B2=E5=82=B3=E9=80=81: =E6=98=9F=E6=9C=9F=E4=B8=80, 2026 =E5=B9=B4 = 8 =E6=9C=88 24 =E6=97=A5 =E4=B8=8B=E5=8D=88 03:48 > =E6=94=B6=E4=BB=B6=E8=80=85: Jakub Kicinski > =E5=89=AF=E6=9C=AC: Shiji Yang; netdev@vger.kernel.org; Rex Lu (=E7=9B=A7= =E5=BB=BA=E9=8A=98); Felix Fietkau; Andrew Lunn; David S. Miller; Eric Duma= zet; Paolo Abeni; Matthias Brugger; AngeloGioacchino Del Regno; linux-kerne= l@vger.kernel.org; linux-arm-kernel@lists.infradead.org; linux-mediatek@lis= ts.infradead.org > =E4=B8=BB=E6=97=A8: Re: [PATCH] net: ethernet: mtk_wed: increase WED v2 W= DMA RESV_BUFF to 0x80 >=20 > > 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 overfl= ow. > > > > Without this patch mt7986 and mt7981 may have WDMA TX hang issue. T= his > > > > patch was pulled from mtk-openwrt-feeds GPL open source project. > > > > > > Lorenzo, could you TAL? (incl. Simon's suggestion of the Fixes tag) >=20 > I am wondering if this is necessary for v3 as well. > @Rex any input on it? >=20 > Regarding Fixes tag, I think cf26df8833cc is the right one. >=20 > Regards, > Lorenzo >=20 > > > > sure, I am AFK now, I will review it next week. > > > > Regards, > > Lorenzo >=20 >=20 --6n3KvZE76g7zMrBv Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTquNwa3Txd3rGGn7Y6cBh0uS2trAUCaowJRgAKCRA6cBh0uS2t rOKOAQCrUxXhlq2/GicDy3cYv/kixByf4XwJGX6woI2YjRSeIAEAoPpH97TupPNm u1YKwGOwPcA2t7USs374lgneUPvYPA8= =XhAn -----END PGP SIGNATURE----- --6n3KvZE76g7zMrBv--