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 179CA2980B0; Fri, 23 May 2025 17:37:17 +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=1748021840; cv=none; b=gS7OdDxa2ZKvwO1X+hNaL22l/4600pN/8suf3pQjjtvRN0ogb5xnLGLywB9ss57tPZTvhSVHyXfrHCbAzmorpfzI8kKB61V1//0RaGZowsZuak99ZivOgwN8gLD0/gpEhsiem9I0zoxnVGXsW75lTv/IvrjXyXJSyxkCo0/vZTw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748021840; c=relaxed/simple; bh=s+HPyIbzFoIPlVtFqaNs4vFqEuL1R8mtL3pdowMdVKE=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=POqeEBU1wDvR+zi2GAgmhBrjvG/AJh62czBFX54OqSdZc5OtuZeDwPrfAJIci3qfBSYWw4cS7dbr2K+KYeEnIcJdnntT0hmMqnp8ZF2t3D3GXr9RreuD/TZ94E3dj3PNh7egDFIXRCfjs5q14363f8Li9JuZzAcVXqcTkD6z4LM= 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=ekxUU2c/; 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="ekxUU2c/" 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-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding: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=gosBGJOfOI3HOUMue5/wB82nFVZSF9nFMZxyulkS3Uo=; b=ekxUU2c/6nB5G2HPWa+4yicJWj Y+vGPzCBAP7wS8NQ2fj4wXpY53P9HnWFFyevRdJIm1WHOWE3aFUDSywZSAZ6DkOBS+sWpCqhpm0zr QXsz+2Hz7+seHMkqj6ylw7OTE0yoZGSlI+AoZKRCdIVzYdUez8O+kQRXolc8hqlozgfBbFSoGc4fN fhVDJ3IGqgswd5Ov0aMiu7nzqT9LPc6SFNRdbPvbKuAXCOcS3MBQ8uT1KbGqhUQtzeAMArT/e2uRK GniCI7+5qbDXUymYmrHA4ZQAIQm245YkUhR8GZPttS46BfSlt5Zb0dxmUir6ZTHEWRpYiDzK5YYbU p01Bknlg==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:38556) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1uIWKR-0003mp-1Y; Fri, 23 May 2025 18:37:07 +0100 Received: from linux by shell.armlinux.org.uk with local (Exim 4.96) (envelope-from ) id 1uIWKO-00061n-1Q; Fri, 23 May 2025 18:37:04 +0100 Date: Fri, 23 May 2025 18:37:04 +0100 From: "Russell King (Oracle)" To: Yajun Deng Cc: Andrew Lunn , hkallweit1@gmail.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH net-next] net: phy: Synchronize c45_ids to phy_id Message-ID: References: <20250522131918.31454-1-yajun.deng@linux.dev> <831a5923-5946-457e-8ff6-e92c8a0818fd@lunn.ch> <5d16e7c3201df22074019574d947dab1b5934b87@linux.dev> Precedence: bulk X-Mailing-List: netdev@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: <5d16e7c3201df22074019574d947dab1b5934b87@linux.dev> Sender: Russell King (Oracle) On Fri, May 23, 2025 at 02:10:00AM +0000, Yajun Deng wrote: > I noticed that. I tested the BCM89890, 88X3310 and 88Q2110 PHY devices, > and the ID is always the same in different MMDs. The 88x3310 PHY uses: Device ID Package ID OUI MMD 1: 0x002b09aa 0x002b09aa 00:0a:c2 MMD 3: 0x002b09aa 0x002b09aa 00:0a:c2 MMD 4: 0x01410daa 0x01410daa 00:50:43 MMD 7: 0x002b09aa 0x002b09aa 00:0a:c2 other MMDs do not contain an ID. According to https://hwaddress.com/oui-iab/00-0A-C2/, 00:0a:c2 is/was Wuhan FiberHome Digital Technology Co. 00:50:43 is Marvell Semiconductor. Not all PHYs have a single ID. IEEE 802.3 allows for this. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!