From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [78.32.30.218]) (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 110FD245006; Mon, 24 Feb 2025 14:39:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=78.32.30.218 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740407949; cv=none; b=pODkmrW/hAQLsXZ1SNU/oomeg0VWQ3iKlxB3ywjRFffS0hr7G7ZwtIC6i/Mfe4VaynNKtSbdsCUBy59vE5db+hVgpnf/6o5baMu9BszaX/6v0q8ABgIwy2AvthIkMt4UTofpcsafpJiQgaV0QHZH6i48he/1gx3qPUfbEw/GqTE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740407949; c=relaxed/simple; bh=fMonh/pKAVHu07dY8Vw+0UdrpHd7C1ki/HDFFIv2F+U=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=AZYFQyKWhW/4HvFgHB5iNYsbylRH2uWP0QLlHKWY6ePs/baFcLCeKwCds6dNF+4QgGnmgSy09kEeYemTbeSg80aPfA6EEwsO9kUSz1jE6vOoqdpxczR9I81XUduqhkkF+jvgyZVEopMLEvv62Db4Ze4J4F671b/hrEsd+ZmQuFI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk; spf=none smtp.mailfrom=armlinux.org.uk; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b=WzZfFuix; arc=none smtp.client-ip=78.32.30.218 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b="WzZfFuix" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To: Content-Transfer-Encoding:Content-Type:MIME-Version:References: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-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=oZBH+BBvL/hgtaMob59TY/eIeJhL38EKvFH99ZsXxXM=; b=WzZfFuixs4bggs/CuH1/ino7Aq kP5Ug2KPxPDM+7ABlB53uXRnElwtHPfiscmCflcSs8jBFu2/xx0YBSYR4QxgzgXqDkGkDTfpmJzdx EWdrBl9RkuIAFyPw3p/MKcWazcymxG1zaa88y+kNqeBpeSjn4s/JTC/rx89AKUptrb7qmtrdmxh+2 6Fk68d72cl+rQxN9Qz+yowEPnXW2l/Di61nbL3AWdUZSFTHvSyDPJTcWP2E8WoI5uuhBzl4KYF9Wi Vy27njJqV9t6KPeDjMbFosJdHdF7W3x02uXi+RnelsTQ33Gx//mBkKx/+XnhrGGIvOAJaGxAq17sh v3Gcpy3w==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:52904) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1tmZbm-0006da-26; Mon, 24 Feb 2025 14:38:58 +0000 Received: from linux by shell.armlinux.org.uk with local (Exim 4.96) (envelope-from ) id 1tmZbk-00054V-1k; Mon, 24 Feb 2025 14:38:56 +0000 Date: Mon, 24 Feb 2025 14:38:56 +0000 From: "Russell King (Oracle)" To: Marek =?iso-8859-1?Q?Beh=FAn?= Cc: Andrew Lunn , =?iso-8859-1?Q?Bj=F8rn?= Mork , Maxime Chevallier , davem@davemloft.net, Jakub Kicinski , Eric Dumazet , Paolo Abeni , Heiner Kallweit , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, thomas.petazzoni@bootlin.com, Florian Fainelli , =?iso-8859-1?Q?K=F6ry?= Maincent , Simon Horman , Romain Gantois , Antoine Tenart Subject: Re: [PATCH net-next 0/2] net: phy: sfp: Add single-byte SMBus SFP access Message-ID: References: <20250223172848.1098621-1-maxime.chevallier@bootlin.com> <87r03otsmm.fsf@miraculix.mork.no> <3c6b7b3f-04a2-48ce-b3a9-2ea71041c6d2@lunn.ch> <87ikozu86l.fsf@miraculix.mork.no> <7c456101-6643-44d1-812a-2eae3bce9068@lunn.ch> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Sender: Russell King (Oracle) On Mon, Feb 24, 2025 at 03:32:43PM +0100, Marek Behún wrote: > On Mon, Feb 24, 2025 at 01:48:19PM +0000, Russell King (Oracle) wrote: > > ... > > > "Please note: > > This hardware is broken by design. There is nothing that the kernel or > > Doesn't "broken by design" mean "broken intentionally" ? The point of this part of the discussion is to find a form of words that folk are happy with, so please feel free to suggest an alternative. To put it bluntly, it does come down to "broken by the hardware engineer not having full knowledge of the requirements of SFP modules as documented in the SNIA documentation and selecting hardware that violates some of the requirements." -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!