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 C85DB3438A4; Wed, 20 May 2026 01:13:05 +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=1779239587; cv=none; b=TzKAKK7QFpPPv0D8NxseM7DMm9fUvj1JEIOZAWOGrJz87mUP6DxzxLSP87mZ1ZLTQNGcrhbluLMyAvULFKXU9LlSlZpRSC9KkrW3vIQWw0XQLboOsxv3T8KOSeuwPWCWRpjbl5pkfAjC0N9qUyX0c/jE8wuXx4Xei5qSnSlncAs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779239587; c=relaxed/simple; bh=TFTfZ3XF6CqzODpasTiqIHoiDxbzAG2FkT+K1h47on4=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ltH29xF8WKV2fajXIYg2ssrkXCO6DK/kddj3q5ZzBZISnaTR8MRIBO3PVdORE8Y3728coUnaHikCaftu0aZRDVDuTtw5p93KsmKspZgjIsk56mqt106qi5khY0XNP5EGYJ674OMyOGVa/44KCwr3FqkWoAIWFgktTzL5kEXxB2k= 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=fIpeKsBT; 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="fIpeKsBT" 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=bXG0Wva1nU+HyoMbFpuo7P4RMd7L4v0ROGwriQ9bGXE=; b=fIpeKsBTB9Omqg6NFrbQDClLVP EXo7ROfXBkpESbbBCiY3VN61eZfg263w6NRki0ijLDPhdgRYWmqyWNqK9aVjLVK98q7JOdUvIClaC JBu1Dz5/WLRnFGoKK+znQ7tSZmWnM15idZKh+LmMBNgGcMmdIJbOZ/fhSBt0FjXOXV4E=; Received: from andrew by vps0.lunn.ch with local (Exim 4.94.2) (envelope-from ) id 1wPVUW-003ktG-JG; Wed, 20 May 2026 03:12:56 +0200 Date: Wed, 20 May 2026 03:12:56 +0200 From: Andrew Lunn To: Daniel Golle Cc: Vladimir Oltean , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Russell King , linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: Re: [PATCH net-next 5/5] net: dsa: mxl862xx: add SerDes ethtool statistics Message-ID: <8fe2cc9d-2a22-4a19-b313-8e570cdc975e@lunn.ch> References: <5e8391488f4dbf23133d16ceaf1b168b39304c97.1779203863.git.daniel@makrotopia.org> <20260519184005.cx32dtj6v6wosb3s@skbuf> 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: > The firmware also exposes self-test via PRBS and BERT, which also > doesn't fit the ethtool self-test model very well (which currently > supports only MAC-level and PHY-level loopback tests, with no way to > represent the PCS/SerDes-level)... Where was a presentation about this at last years netdev conference and a long discussion with Alex at Meta about how to expose PRBS the fbnic has. It is probably the same PCS or similar PCS, since they licensed it as well. Andrew