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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A7A0EC46CCD for ; Thu, 21 Dec 2023 16:59:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=AMBjYlvXiagLpgxm8xvuxli+4FYWnS8BYaeGUjl69is=; b=QLfYQu4njjJsSF hX9JdDD/wFrtmjs9Hb/LsOnKlmlzPBiQApxs5MKVydslVGSazc7ruYceHGl4ZwTZ0jmXgWtQUzYTX a+ZbgNcoSzZKB6WrQA2o7wDDBL+rvlpkZNOUnnqNQPuul12RxQBA/57duYqmEQXtIVyB205PuH5mK B2qEVUqTgOcExcsXXAC/7/aZCzhiOGhsKUJM1EqAOvwXdwDiByOFJ/ksfbwKVQHd4qx9ZKugLA62N s0lDOETF/dN8HFaBhC/5JYTuPtj0I23UPLbBW8FqMtvBX9fn+y01wdKfaSMqK2p1oYMkcQcA09ErP G+WZgMm5hREllxLngqGw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rGMOA-003Zja-0H; Thu, 21 Dec 2023 16:59:14 +0000 Received: from relay4-d.mail.gandi.net ([2001:4b98:dc4:8::224]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rGMO7-003ZhA-1r for linux-arm-kernel@lists.infradead.org; Thu, 21 Dec 2023 16:59:13 +0000 Received: by mail.gandi.net (Postfix) with ESMTPSA id 47FBDE0006; Thu, 21 Dec 2023 16:58:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1703177940; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=64g4WXHsmtstsXFWVKn4+jC7SrQnUgEAndJzQ+FYA9s=; b=oIaXa8H9AfHKgs3Zfmu8VPmK09bSKs+HtjTMOjRenfZ44LykxNabiA4r4NX3YJW/++hQjx R86criDYih8pJkoQ5c5pKQPtbZAwBRYmHtQkR8Rq64WHSmvIGOqJ4iMUUkeYPXKc631cnr LbFO7vYXlg9qkgzIsrJ0ueQOqpt8D5vB4NCCLYycBrDJnFtRXk//pfK2JajnoeANTfVLOA WHbOI70ihS71u57Zl9ZIuestgOaqYj00AhO0kLyvNAWyg7G7oI4FuBsJdaZ9vEVpSWRtJs Dq558tUtybtDXPh3o0iuR4w7bEsUcKvqYCfJ9enC7Vtyipz8vuZy1o120z0xVQ== Date: Thu, 21 Dec 2023 17:58:57 +0100 From: Maxime Chevallier To: Andrew Halaney Cc: Sneh Shah , kernel@quicinc.com, linux-kernel@vger.kernel.org, Bhupesh Sharma , netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, Eric Dumazet , Vinod Koul , Jose Abreu , Maxime Coquelin , linux-arm-msm@vger.kernel.org, Jakub Kicinski , Paolo Abeni , "David S. Miller" , linux-arm-kernel@lists.infradead.org Subject: Re: [Linux-stm32] [PATCH net-next] net: stmmac: dwmac-qcom-ethqos: Add support for 2.5G SGMII Message-ID: <20231221175857.6d2874ff@device-28.home> In-Reply-To: References: <20231218071118.21879-1-quic_snehshah@quicinc.com> <4zbf5fmijxnajk7kygcjrcusf6tdnuzsqqboh23nr6f3rb3c4g@qkfofhq7jmv6> <8b80ab09-8444-4c3d-83b0-c7dbf5e58658@quicinc.com> <8f94489d-5f0e-4166-a14e-4959098a5c80@quicinc.com> Organization: Bootlin X-Mailer: Claws Mail 4.1.1 (GTK 3.24.38; x86_64-redhat-linux-gnu) MIME-Version: 1.0 X-GND-Sasl: maxime.chevallier@bootlin.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231221_085911_927218_634C63E8 X-CRM114-Status: GOOD ( 11.99 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hello Andrew, On Thu, 21 Dec 2023 08:30:49 -0600 Andrew Halaney wrote: [...] > > Note, I'm struggling to keep up with the standards at play here, so if > someone else who's a bit more wise on these topics has an opinion I'd > listen to them. I find myself rewatching this presentation from > Maxime/Antoine as a primer on all of this: > > https://www.youtube.com/watch?v=K962S9gTBVM :) > If anyone's got any recommended resources for me to read in particular I > am all ears. I think Russell and Andrew did a good job clarifying some quirks with all these standards : https://elixir.bootlin.com/linux/latest/source/Documentation/networking/phy.rst#L229 There are some more info in Andrew's LPC talk here : http://vger.kernel.org/lpc_net2018_talks/phylink-and-sfp-slides.pdf (more phylink related though) But I agree that this is hard to fully grasp, there are so many variants everywhere, some standard, some ad-hoc standards, etc. Maxime _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel