From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id F11BCC5DF8C for ; Sat, 22 Aug 2026 00:41:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:Cc:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=aObQf2oaYp5QKQcNw3tYERl0NwSXy/AaP2uuZhlQdS0=; b=UutGqxL1ieQYzoLszl6B2RkKdY 6nxVf4xxz9GQfMQ9wOI/rv53IjwjmX+lybOqX/UOesr0e6GB41La6Y0VmHs3XSAfMX56InpzYfkSs p/P4zVtxgTe0qEhUkVcXvDlh/OiANmMjoHygEVyn03sT5v2jSO3j4qp8lHpM/OSyCwxKDJY1Aefla pPzvMEgD6qQ7S3gXcasQivNT91iC83YohGCxwTPuIMetXEfBBi39By3jTMTLXVYjUnkZJZ2zbD2Hd ZDh3EC6R9yBk6Ihn2A8+mvvGlWL3AcFd6EhSwj6Wb4Jp5oLk4lE0CU0C9Q/OfSBfdivpTe8kmpfNc HEGL114Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wxZnb-0000000ECaL-03D0; Sat, 22 Aug 2026 00:41:27 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wxZnZ-0000000ECaB-45HB; Sat, 22 Aug 2026 00:41:26 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id B3FD261126; Sat, 22 Aug 2026 00:41:23 +0000 (UTC) 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: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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)