From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7F400C5519F for ; Tue, 17 Nov 2020 00:28:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2A33224671 for ; Tue, 17 Nov 2020 00:28:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="x1o9AuWe" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731432AbgKQA2r (ORCPT ); Mon, 16 Nov 2020 19:28:47 -0500 Received: from mail.kernel.org ([198.145.29.99]:46656 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730202AbgKQA2q (ORCPT ); Mon, 16 Nov 2020 19:28:46 -0500 Received: from kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com (unknown [163.114.132.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 94E7F2465E; Tue, 17 Nov 2020 00:28:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1605572926; bh=6yaImKJKzBRBADUskb41q+3HaRMkDUkwEqn+lqXHavg=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=x1o9AuWesC2uZjJPilV7I9Pm7Alcm325vJ3rY/GxL1pBjzoen7daBt+KUGwMjzrkW qfp6Fwl9kl/oVIEctfU7RCnug3TVh7YDRsFi43ERyxFqxyq/UWvUIc/Xz6XEosD/D/ ebTcW0+/l5CH0oIPMlyCRCDYVW80GCJFwh6FhAV4= Date: Mon, 16 Nov 2020 16:28:44 -0800 From: Jakub Kicinski To: Vladimir Oltean Cc: Florian Fainelli , Oleksij Rempel , Andrew Lunn , Vivien Didelot , "David S. Miller" , Russell King , Pengutronix Kernel Team , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org Subject: Re: [PATCH v1 net-next] net: dsa: qca: ar9331: add ethtool stats support Message-ID: <20201116162844.7b503b13@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com> In-Reply-To: <20201117001005.b7o7fytd2stawrm7@skbuf> References: <20201115073533.1366-1-o.rempel@pengutronix.de> <20201116133453.270b8db5@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com> <20201116222146.znetv5u2q2q2vk2j@skbuf> <20201116143544.036baf58@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com> <20201116230053.ddub7p6lvvszz7ic@skbuf> <20201116151347.591925ca@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com> <20201116232731.4utpige7fguzghsi@skbuf> <7cb26c4f-0c5d-0e08-5bbe-676f5d66a858@gmail.com> <20201116160213.3de5280c@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com> <20201117001005.b7o7fytd2stawrm7@skbuf> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 17 Nov 2020 02:10:05 +0200 Vladimir Oltean wrote: > On Mon, Nov 16, 2020 at 04:02:13PM -0800, Jakub Kicinski wrote: > > For a while now we have been pushing back on stats which have a proper > > interface to be added to ethtool -S. So I'd expect the list of stats > > exposed via ethtool will end up being shorter than in this patch. > > Hmm, not sure if that's ever going to be the case. Even with drivers > that are going to expose standardized forms of counters, I'm not sure > it's going to be nice to remove them from ethtool -S. Not remove, but also not accept adding them to new drivers. > Testing teams all > over the world have scripts that grep for those. Unfortunately I think > ethtool -S will always remain a dumping ground of hell, and the place > where you search for a counter based on its name from the hardware block > guide as opposed to its standardized name/function. And that might mean > there's no reason to not accept Oleksij's patch right away. Even if he > might volunteer to actually follow up with a patch where he exposes the > .ndo_get_stats64 from DSA towards drivers, as well as implements > .ndo_has_offload_stats and .ndo_get_offload_stats within DSA, that will > most likely be done as separate patches to this one, and not change in > any way how this patch looks.