Received: by 2002:a05:6a10:9848:0:0:0:0 with SMTP id x8csp364463pxf; Wed, 31 Mar 2021 05:29:22 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyRP3R/BKftTn8i21OYxXZtwn+lWQ3bUd3rTsUqw4mZ0tOOWt8IQZ5HgDVEfTNR/nk9KY85 X-Received: by 2002:a17:907:788e:: with SMTP id ku14mr3350068ejc.17.1617193762708; Wed, 31 Mar 2021 05:29:22 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1617193762; cv=none; d=google.com; s=arc-20160816; b=LedClvHNbyV+SB7WGG0sCVhRCOBrs1CNzG2BoD1WQxRJaIdqbD13dblf5VAnWaRbL0 bqTEVwEtjr2gdUhUGzqT64dcwGubKzZucdZlITkNn5edBQf18cq0IsiThW3oKK/wvoes yUqI9CSu/3VChh2b/5AaWkciWSLDwhQx67tW9l75koVaJgwyCXOLx5pjRhbY0BSppF+C Cs71O6y3bdlOOC2D0aKQv1yoIhn21iZeNA6nU0sxROC9emi+YXGlledPtoYyRUZVczkd TvyP7IgGwVL8E1ceNbsJtMKmVLGMITTw+RBxefCzRVp3B4b4iiX+eUs0kYfw3v1OTNcK nFMg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date; bh=mG1h56AhgG2e8LwRLrjul9puoR1wYEitpXrmLet7tvg=; b=uh3r1HwH3Xd4q6uyQEyFXUtG0xK4QpPxKX5/mb7QeTEfc3e064cdvw0bg3XjQyEJF8 VGg/2y3IlndL4iLG1kUGr6UnIDZMThVzVflnNn0IixufEpWnJrDPFMWiDnnkmSL39kzs yZ3MyU58xfhjUFmXmDYdB1XdvP7GaOoRU5KaJ22S+kn2pe1NS0TARlIK7TgDHEpGRr+c b/kf78EnweTWETXAO2PdDRP/i6iO54IutSYi9fMm17hU+5kGCokzSiMuhRUcztImq7Tp cSPuHsrXmQYRVlnFBq8BNiu3qMlasi9rJbMlgIWCG/IgINsIznwMJnsGhCkBFKgYyPD0 wsLQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id bl1si1519578ejb.408.2021.03.31.05.28.59; Wed, 31 Mar 2021 05:29:22 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235647AbhCaM2A (ORCPT + 99 others); Wed, 31 Mar 2021 08:28:00 -0400 Received: from vps0.lunn.ch ([185.16.172.187]:56070 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235552AbhCaM13 (ORCPT ); Wed, 31 Mar 2021 08:27:29 -0400 Received: from andrew by vps0.lunn.ch with local (Exim 4.94) (envelope-from ) id 1lRZwN-00EAZw-VU; Wed, 31 Mar 2021 14:27:19 +0200 Date: Wed, 31 Mar 2021 14:27:19 +0200 From: Andrew Lunn To: Oleksij Rempel Cc: Shawn Guo , Sascha Hauer , Florian Fainelli , Heiner Kallweit , Fugang Duan , kernel@pengutronix.de, netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-imx@nxp.com, Fabio Estevam , David Jander , Russell King , Philippe Schenker Subject: Re: [PATCH net-next v1 3/3] net: fec: add basic selftest support Message-ID: References: <20210330135407.17010-1-o.rempel@pengutronix.de> <20210330135407.17010-4-o.rempel@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210330135407.17010-4-o.rempel@pengutronix.de> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Mar 30, 2021 at 03:54:07PM +0200, Oleksij Rempel wrote: > Port some parts of the stmmac selftest to the FEC. This patch was tested > on iMX6DL. > With this tests it is possible to detect some basic issues like: > - MAC loopback fail: most probably wrong clock configuration. > - PHY loopback fail: incorrect RGMII timings, damaged traces, etc Hi Oleksij I've not done a side-by-side diff with stmmac, but i guess a lot of this code is identical? Rather than make a copy/paste, could you move it somewhere under net and turn it into a library any driver can use? Andrew