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=-9.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 D827DC433ED for ; Thu, 15 Apr 2021 16:12:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AC8B861152 for ; Thu, 15 Apr 2021 16:12:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233914AbhDOQMc (ORCPT ); Thu, 15 Apr 2021 12:12:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33142 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231726AbhDOQMa (ORCPT ); Thu, 15 Apr 2021 12:12:30 -0400 Received: from mail-pf1-x432.google.com (mail-pf1-x432.google.com [IPv6:2607:f8b0:4864:20::432]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D1229C061574; Thu, 15 Apr 2021 09:12:07 -0700 (PDT) Received: by mail-pf1-x432.google.com with SMTP id m11so16370993pfc.11; Thu, 15 Apr 2021 09:12:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=bn/FEKI0DUcK5gkZn0WmOvf0JUUXiN80J83XcZr+ujk=; b=oOryQzR8VKrd/DGXx1BLcg3o4LZfWGsbKTLCDevZUMPa/eoEfnyeoOj10CSj6Orq7g Hoz7O94Dsf8HW0ZvqizYs59gA60XmvhdhIQi/Do9TKcOmBc2e7SBL1Xg6KmDppX88JvH LG1/H+XDcRPMJdIV4yadeBdksBDW7CiJIMJ77Cqq5W+d2iqlLrwJOQmHMxhWxNG4QggQ hVUsap79lIM2/UB7g+58N9EawerM73hZKTnnDYJpKxUY6wmAp66nUZUacWRh0Uv1rgh3 rv7K0/TfLrl4V1VWw/kLzvkQGaP/kDiTSxGJeN0uaoF2KYkmaTsA+mC4dx2Eg9B4jnPW QKxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=bn/FEKI0DUcK5gkZn0WmOvf0JUUXiN80J83XcZr+ujk=; b=jtT6SAqbnAAAD5FqKjrUsi6NrpaUSA7Qm7ai1NWd3JH9d0kEA2kgrFXBP9zxIuAMq6 GrLt9VdGtIo8sqartRQtYuj5MNI4L0JN5ki++2XfX7B4A+rW4ID4LbFkYtloqBwWasQf JlaXmTRLBlRmeeYBgN+MxlmjOgGvb794hq+iR4/F0aaYhif8hcDD1lhuAAkqevY87/WW iYVdK8W6EEOD7/GdVoyfOixLL/0GJ5RK1yUwJ7vdUDghpn02fIySBXe0MM8hz35jy8z4 Zn6OrnMRIRh2mgDahfnVJ1vX+vxHpNHCRp57ulbJDhgAa8ZTqRniiZo1sseN+bdLTagG b9Zg== X-Gm-Message-State: AOAM533DNsrLH4sisvOGlvyFYLN2uF6nk7Jb+eGhTf5PYrdRNaEhZMAr 3qscZO3DTTEE9ZUnDOHaPVPIZEsqg0I= X-Google-Smtp-Source: ABdhPJwGrQ5hvRYo21bFnDFFBPZu++M38/fB/VpYR9CzwRR8Pd0EHk6mw0VY/hEoLCby8bhep1RuAw== X-Received: by 2002:a63:dc49:: with SMTP id f9mr4059346pgj.361.1618503126938; Thu, 15 Apr 2021 09:12:06 -0700 (PDT) Received: from [10.230.29.202] ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id m11sm3083469pgs.4.2021.04.15.09.12.04 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 15 Apr 2021 09:12:06 -0700 (PDT) Subject: Re: [PATCH v2 net-next 1/5] net: dsa: mv88e6xxx: Mark chips with undocumented EDSA tag support To: Tobias Waldekranz , davem@davemloft.net, kuba@kernel.org Cc: andrew@lunn.ch, vivien.didelot@gmail.com, olteanv@gmail.com, netdev@vger.kernel.org, robh+dt@kernel.org, devicetree@vger.kernel.org References: <20210415092610.953134-1-tobias@waldekranz.com> <20210415092610.953134-2-tobias@waldekranz.com> From: Florian Fainelli Message-ID: <81d2b72d-7d77-c668-9102-c0d19be54d74@gmail.com> Date: Thu, 15 Apr 2021 09:12:03 -0700 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Firefox/78.0 Thunderbird/78.9.0 MIME-Version: 1.0 In-Reply-To: <20210415092610.953134-2-tobias@waldekranz.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On 4/15/2021 2:26 AM, Tobias Waldekranz wrote: > All devices are capable of using regular DSA tags. Support for > Ethertyped DSA tags sort into three categories: > > 1. No support. Older chips fall into this category. > > 2. Full support. Datasheet explicitly supports configuring the CPU > port to receive FORWARDs with a DSA tag. > > 3. Undocumented support. Datasheet lists the configuration from > category 2 as "reserved for future use", but does empirically > behave like a category 2 device. > > So, instead of listing the one true protocol that should be used by a > particular chip, specify the level of support for EDSA (support for > regular DSA is implicit on all chips). As before, we use EDSA for all > chips that fully supports it. > > In upcoming changes, we will use this information to support > dynamically changing the tag protocol. > > Signed-off-by: Tobias Waldekranz Reviewed-by: Florian Fainelli -- Florian