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[139.178.88.99]) by mx.google.com with ESMTPS id b3-20020a170902e94300b001e9219222cfsi9639377pll.269.2024.05.06.18.39.54 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 May 2024 18:39:54 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel+bounces-170553-linux.lists.archive=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) client-ip=139.178.88.99; Authentication-Results: mx.google.com; dkim=pass header.i=@lunn.ch header.s=20171124 header.b=LSCcqLyL; arc=pass (i=1 spf=pass spfdomain=lunn.ch dkim=pass dkdomain=lunn.ch dmarc=pass fromdomain=lunn.ch); spf=pass (google.com: domain of linux-kernel+bounces-170553-linux.lists.archive=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) smtp.mailfrom="linux-kernel+bounces-170553-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=lunn.ch Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sv.mirrors.kernel.org (Postfix) with ESMTPS id 108BB2821F3 for ; Tue, 7 May 2024 01:39:54 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 078054A0A; Tue, 7 May 2024 01:39:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b="LSCcqLyL" Received: from vps0.lunn.ch (vps0.lunn.ch [156.67.10.101]) (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 D715F1366; Tue, 7 May 2024 01:39:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=156.67.10.101 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715045984; cv=none; b=ZE41oG8ejF+cRjhGplEq5CNgxfcWvu8CcW3bLOGELVVQpQ3Bt9197CCdSjGKiDTxKKlFGKnBBjgFBSWFDjW2yKAUP52BrgxmOWn8ohQ/+Ai0QLAvFsqct11ilr9fmWOOpiGMb0KUbAxvv0DxQob9ss7ONaKgKDYVHO5L2F5ENOc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715045984; c=relaxed/simple; bh=E7ARgkhEsohvSTW2NzXTQRNpgaQd8EYbT7I4/e0wuUM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=k2cvFpUEtkmgD+lFf1+3mUflam6OZI44Gc6TjQkncSUsye6menj3nOxCHw2mkthvlUm7V8/0ntVMViptjAWwPwK7Q57kePMLy8/0rQr4KBez7xaO+2ikcKyL83WB+1Jy59A+qVHgWU91m6mrMosqg/0h6Iak2qQH4/rzNiQ44IQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lunn.ch; spf=pass smtp.mailfrom=lunn.ch; dkim=pass (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b=LSCcqLyL; arc=none smtp.client-ip=156.67.10.101 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lunn.ch Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lunn.ch DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Disposition:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:From:Sender:Reply-To:Subject: Date:Message-ID:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:Content-Disposition:In-Reply-To:References; bh=FXNp/q3EFc3VE1kfKaNpKliwa/x0VAgfl7uuP2pqXyQ=; b=LSCcqLyL687THwltEsK2assb/C 3b7ONr5S/NsGuqh95g8ETyeP8w5OHcpqHaLc0f2gSm96GX23H4LOiSdNTsy6ncwZBxO9IgDWduXRi lTK3xu1MszAdGGQ3vtJ9d79ef6EE0jwM9E5+NQvD9ImJeGApkoQnF+02/XeRajB/S1RA=; Received: from andrew by vps0.lunn.ch with local (Exim 4.94.2) (envelope-from ) id 1s49nd-00EoM8-2p; Tue, 07 May 2024 03:39:21 +0200 Date: Tue, 7 May 2024 03:39:21 +0200 From: Andrew Lunn To: Ricky Wu Cc: jesse.brandeburg@intel.co, anthony.l.nguyen@intel.com, intel-wired-lan@lists.osuosl.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, rickywu0421@gmail.com Subject: Re: [PATCH] e1000e: fix link fluctuations problem Message-ID: References: <20240502091215.13068-1-en-wei.wu@canonical.com> 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-Disposition: inline In-Reply-To: <20240502091215.13068-1-en-wei.wu@canonical.com> On Thu, May 02, 2024 at 05:12:15PM +0800, Ricky Wu wrote: > As described in https://bugzilla.kernel.org/show_bug.cgi?id=218642, > some e1000e NIC reports link up -> link down -> link up when hog-plugging > the Ethernet cable. > > The problem is because the unstable behavior of Link Status bit in > PHY Status Register of some e1000e NIC. Why PHY is this? It might be the PHY manufacture has an errata, since this is probably not the MAC causing the problem, but the PHY itself. Andrew