From mboxrd@z Thu Jan 1 00:00:00 1970 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 44B9E23FC66; Fri, 25 Jul 2025 12:31:55 +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=1753446716; cv=none; b=F1QMbyafaHubnircZNaY3imIZRNbx1uiBdO8ZbszK+z4zsLspHuo0rZznGI30k5bXHHjJSgAWv+x5Js3/t0RulvajQKnnUy6NBwCRXsbK5+oVaZufhe/aYSKhm/dBgWUG0S/Q+utpbhjsm1oc2k3yRTibrLi6wWLtguj5CJzJJ8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753446716; c=relaxed/simple; bh=21kdazm3dA3uRM7RId50d1DTdGjM3+Yf2AZT3zzuox0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=CHJURE3hqA7JCzUmdO6HG7LwU7ym+RZF+h5U7jy5PyrUAZp2W00zzm4dRxeQGZYrwZ9sKme7XvfqAo8V+7Dje3v18hc4GRXzOMNwYwlsjBRGfE4V0wMwvmyKMBZRn/5oXC1HHv45Pwdww7FUoTNIYnNH6/rHn/PUxln2XP0lrTA= 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=wMd7Rqth; 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 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b="wMd7Rqth" 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=X28c8kclYQj09tLPR7kfmrE6WQfR+ZPhLx6YmKTd5uc=; b=wMd7Rqtha2mbw7yGB/GvWpqFSz 74Hyygr24XJIxIJ+eplQFR3ImhR2CedabENr4AdU9K5rxZLIx122RGyRdgtPCaqMKPQf5+2elQoRr EdAtvDZ76x260UitEWFJZwg5vSjIj6/X6AmHxjpc6yIe/hTjqPEksP1/F62jo+mrPjJ8=; Received: from andrew by vps0.lunn.ch with local (Exim 4.94.2) (envelope-from ) id 1ufHaU-002rdk-H5; Fri, 25 Jul 2025 14:31:46 +0200 Date: Fri, 25 Jul 2025 14:31:46 +0200 From: Andrew Lunn To: Tristram.Ha@microchip.com Cc: Woojung Huh , Vladimir Oltean , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maxime Chevallier , Simon Horman , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Marek Vasut , UNGLinuxDriver@microchip.com, devicetree@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH net-next v6 6/6] net: dsa: microchip: Disable PTP function of KSZ8463 Message-ID: <15b7c9e5-ea7c-4efd-8ee6-c8562feffb9b@lunn.ch> References: <20250725001753.6330-1-Tristram.Ha@microchip.com> <20250725001753.6330-7-Tristram.Ha@microchip.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: <20250725001753.6330-7-Tristram.Ha@microchip.com> On Thu, Jul 24, 2025 at 05:17:53PM -0700, Tristram.Ha@microchip.com wrote: > From: Tristram Ha > > The PTP function of KSZ8463 is on by default. However, its proprietary > way of storing timestamp directly in a reserved field inside the PTP > message header is not suitable for use with the current Linux PTP stack > implementation. It is necessary to disable the PTP function to not > interfere the normal operation of the MAC. > > Note the PTP driver for KSZ switches does not work for KSZ8463 and is not > activated for it. > > Signed-off-by: Tristram Ha Reviewed-by: Andrew Lunn Andrew