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 D87552D9780; Sat, 22 Aug 2026 00:41:23 +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=1787359284; cv=none; b=G35lQ9OA7BTCVIiHKr8Fw34vpIL20QIR45yjOyNnRE37tTfN20kZ9XXHDgdoYZvikTC1oxbidZz47vrVj9yLNBwTbvPKCM69pKtKpIRPByUtUh0SWEaNqXhPPeDg9ly4XMUuhzWwBBQP1nX0XyezcF7jmALbCJPqTTcIE5PWEMk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787359284; c=relaxed/simple; bh=aObQf2oaYp5QKQcNw3tYERl0NwSXy/AaP2uuZhlQdS0=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=HOIW0v6KCUFr3SJGjkQaHwpxD17y0fjGWIBe/c9ebyrDNStO8PKD/CAUKqQliRVtrSg0q9ZaLq3yXzmshwTXsho+SedV2A02hUF07FYUIYoIKnBfFaH2B+H+uV7hlO0skjjjnKRP6sLBPPaA0Sl3rpBnH9rTT4i2sX99CFAMPAk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=c1fIJOUC; 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="c1fIJOUC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0A4C71F000E9; Sat, 22 Aug 2026 00:41:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787359283; bh=aObQf2oaYp5QKQcNw3tYERl0NwSXy/AaP2uuZhlQdS0=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=c1fIJOUC8htT+L7mTOSWTZ22TQjYb6mSU3FVTqQ2Gy6GYmZ+pdnEvRVRcGRFFSzHT zsg9Ugdl2YCloKJ2xt4hY+6P7dL76Gl65xnNBCNjYJIrZ6SQYVAqqOViubL7bO0w0q oCZsxc+386+GMUbE15FPq7+tQ9AqEKaV4f8NyKrsmirc2VQCAKrknBtOOLKShaMJEI SjnU/hN4Z8L6/u/x7UqJEHD15XQoQHH9J67yCmEYMSQL0xE1ssJv8y6mBpEhq6u21I 1trDR/aOM1u7ECZ3TPq25A/Wsz/UkdBGCm1h4HtiEF8atnqGAZAe/MIvtHsDAU8oGM kUnQ0nX3nimOg== Date: Fri, 21 Aug 2026 17:41:21 -0700 From: Jakub Kicinski To: Lorenzo Bianconi Cc: Shiji Yang , netdev@vger.kernel.org, Rex Lu , 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: [PATCH] net: ethernet: mtk_wed: increase WED v2 WDMA RESV_BUFF to 0x80 Message-ID: <20260821174121.326f3c49@kernel.org> In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit 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)