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 DA4201F4174; Thu, 6 Nov 2025 13:21:57 +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=1762435320; cv=none; b=anIk5Sx3tAj2cN3m5d1lQpyMADrX8Kg//G0MkZNqmtJS7Xr/tPIJPk1PQ4tWAAIRcGbr5KW7ORsWBA/zRXNpKkod8tu6JEY3DmQy4tFROpHFxiEtQeFZ9y6K9zh2xzHd3hXUu7mFl5aAse2diKNPYKsmyO7kQ/MMEo0z02Ijs6I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762435320; c=relaxed/simple; bh=71C0I5n58bGGgCMwPh367yUCxZGV0IWXyE17k6a3ghg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Yq9NXB5NnXeRAKCK7YKwGBX0qdC92BbMnGm68y4viIPJo8S2fASUm6m5D2l6C4b9zF8F/q5wNsj8ga3poZh79LyFED8BMVW3jo5uuaQBVOmKtHE4EutC1jxnbaWdLQBDgkrEAKMvzSi2ev4CgOtwIVD3N67exm/wN0wd6+48tRw= 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=VUhGzAK5; 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="VUhGzAK5" 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=Obyr+hCjQWTwlTchcrrVyCiTRkl+E0+Zq2PR/MmnLlk=; b=VUhGzAK5E9Ac8+xgCI0duVhy8J l9UPh5wqigU66Xjmf+jO7CiRITxAKC9li64+7FkvBSpTu3ZFDdCayC/Tedwrdas9lt26LXq2q+Gj0 Nn+CQT47s+5ftbbKCyvakr0m7VP4VRmXYRG3W95BGjO9s6HmWKXwsC0uVey+UU8y0UtY=; Received: from andrew by vps0.lunn.ch with local (Exim 4.94.2) (envelope-from ) id 1vGzvv-00D7Ld-9s; Thu, 06 Nov 2025 14:21:47 +0100 Date: Thu, 6 Nov 2025 14:21:47 +0100 From: Andrew Lunn To: Horatiu Vultur Cc: hkallweit1@gmail.com, linux@armlinux.org.uk, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, Divya.Koppera@microchip.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH net] net: phy: micrel: lan8814 fix reset of the QSGMII interface Message-ID: <98bbc307-a61a-4297-85fa-1ff3a71c9039@lunn.ch> References: <20251106090637.2030625-1-horatiu.vultur@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: <20251106090637.2030625-1-horatiu.vultur@microchip.com> On Thu, Nov 06, 2025 at 10:06:37AM +0100, Horatiu Vultur wrote: > The lan8814 is a quad-phy and it is using QSGMII towards the MAC. > The problem is that everytime when one of the ports is configured then > the PCS is reseted for all the PHYs. Meaning that the other ports can > loose traffic until the link is establish again. > To fix this, do the reset one time for the entire PHY package. > > Fixes: ece19502834d ("net: phy: micrel: 1588 support for LAN8814 phy") > Signed-off-by: Horatiu Vultur Reviewed-by: Andrew Lunn Andrew