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 699701E520F; Wed, 27 Aug 2025 08:47:56 +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=1756284477; cv=none; b=flxCPrV/vOtd2FHY429APKo7jKzQuR9c5otUiLZzdC+3TYN/OzphSfxuxHaqBwvYc6OicITez14HMVhYQWo2QHF95cZTg1ggwj+0tIxYmH5ao+zcsmhHMURRoIXU1nHC9MIo/ctYE+P9fTzuZbXCx1vaM6u/RgKSH+yfyJuxQik= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756284477; c=relaxed/simple; bh=3La7ZruIM39k9yATZBjNuP6LYmJSdGNKCPSZR/7EuMA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=CEYe5oYwLWAcMmES5tEPXOk18LR7KKt++dOn3JIofKPl3D+30fEtSFYy/a0ras1IXya203wjnbkGMPSUEK2iTSnCvsHwTs7kuGJGg8Pwskeh9YiDIszEMrXhO8MkekyLCY72RcTPdI+esqXESyFBqqGA43NswK0ahDWvUkDOcqo= 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=08XwWJK9; 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="08XwWJK9" 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=tnzvx7h8fFQ2+qqO7+1UO+n9yvNn4jENB+MUqSVUa5g=; b=08XwWJK9dMNa2m7wW74lyE8JW+ W0VRR3L/nlHnyY1xYTx3aSlhAKbR8oPvW0bDVKw/fJEQGA/1bB2BGjw/3MM31alzZL5fg1u9d/zkh sFQcXv7hS0GFyARLhc0sxnp0K4sRU/oQ+i4PEyKXpKJLwkxwwGM8qOsAazwbZPUZT9w71z7n5vcQu ElEaBMWYuskUToxWPIAN7ThyODjrPYSTehhWOfeNarrqMrGmXymUkJcT6KGl0jDMOB4SjNi6i5Yo4 eN1AYog/bg9QIOQu2qNy9H1T8cCp8JUaTkenIp8dgADwNz/1hAi/EENyrpuWI5JffaPyI+aZvdXnI JKmnnpuA==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:42268) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1urBos-000000000Fk-3In4; Wed, 27 Aug 2025 09:47:50 +0100 Received: from linux by shell.armlinux.org.uk with local (Exim 4.98.2) (envelope-from ) id 1urBor-0000000023Z-0hms; Wed, 27 Aug 2025 09:47:49 +0100 Date: Wed, 27 Aug 2025 09:47:49 +0100 From: "Russell King (Oracle)" To: Alexander Wilhelm Cc: Vladimir Oltean , Andrew Lunn , Heiner Kallweit , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: Aquantia PHY in OCSGMII mode? Message-ID: References: <20250804160037.bqfb2cmwfay42zka@skbuf> <20250804160234.dp3mgvtigo3txxvc@skbuf> <20250805102056.qg3rbgr7gxjsl3jd@skbuf> <20250806145856.kyxognjnm4fnh4m6@skbuf> <20250827073120.6i4wbuimecdplpha@skbuf> 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: Sender: Russell King (Oracle) On Wed, Aug 27, 2025 at 10:41:11AM +0200, Alexander Wilhelm wrote: > Set to 100M: > > fsl_dpaa_mac: [DEBUG] called > fsl_dpaa_mac: [DEBUG] called > fsl_dpaa_mac: [DEBUG] * mode: 0 > fsl_dpaa_mac: [DEBUG] * phy_mode(interface): 2500base-x > fsl_dpaa_mac: [DEBUG] * memac_if_mode: 00000002 (IF_MODE_GMII) > fsl_dpaa_mac: [DEBUG] * speed: 2500 > fsl_dpaa_mac: [DEBUG] * duplex: 1 > fsl_dpaa_mac: [DEBUG] * tx_pause: 1 > fsl_dpaa_mac: [DEBUG] * rx_pause: 1 So the PHY reported that it's using 2500base-X ("OCSGMII") for 100M, which means 0x31b 3 LSBs are 4. Your hardware engineer appears to be incorrect in his statement. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!