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=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 28AB2C10DCE for ; Fri, 6 Mar 2020 16:34:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EE24820658 for ; Fri, 6 Mar 2020 16:34:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ZxZ1f0Vh" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726646AbgCFQd7 (ORCPT ); Fri, 6 Mar 2020 11:33:59 -0500 Received: from mail-wm1-f44.google.com ([209.85.128.44]:53948 "EHLO mail-wm1-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726185AbgCFQd7 (ORCPT ); Fri, 6 Mar 2020 11:33:59 -0500 Received: by mail-wm1-f44.google.com with SMTP id g134so3155236wme.3; Fri, 06 Mar 2020 08:33:58 -0800 (PST) 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=q73OcekNycIq1PSkVI7Gx2xIVJb/qda+b0krbcWtz0c=; b=ZxZ1f0VhGF21zhOeQYP+c38N2Dni9DdN+6OV3OYQQrhbZazMkyB4aejaNK2OiuQ9+/ 6wlW5n3TvYcphArdozqjsG5Hf0g2lWeGhKE7YHYzQ48pQ2q7HgRzyDevMTHZrsfo2oKP 18xBJVtiLwtuyWFZD2YmVOiU1rnwczPfw3Wh681/fBS0yta1bqwn4Oorv2aKZpUuxstK zbiPc51Ql0es+SCaqeeXr1LzypJzLrCWmnOjoHE5JMWN2hfJRkmllufTFA+lZAtiTB0A tZ2kt3PIFxuElVbmZng2TeOD01QwT+0+r46uTcw2RGrv9+zkYZv16Nlp+daE5e2alhGZ 8sHA== 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=q73OcekNycIq1PSkVI7Gx2xIVJb/qda+b0krbcWtz0c=; b=BGlgoEeNmMfHWFfLTBJsjI0OoH7JyhNDBbs50IivWTNAAmuXdPulyE6iGmYdIc8pk5 d3VhiK45K6m9/Osrtv9uxPdfiEGvo3o0aYMvr4w/95lyYa9svHgJFj639wHOUwEvUfi+ YASBSJVKpMBEpz0rNAVQ8g+CONZDAoVpGH05FvuXeF/dSuigOYW+N+ezKDDHYP9pdJMn DmgooJlHEL76K5YMM68ru/eXG9OV/3BU6qeUEziCVswrWoSDzjxC3VL5pX7G7FAX8YtE POKC+wqmNNI0xZTuQ6DDd6LUKLkvgosdrTLyhIuLZMmnGlUVSeBDjww6699u1tNohOeq x/mA== X-Gm-Message-State: ANhLgQ09hEosjk4KLI7rQG7ycSmNAg8gpcr67Wk0ttfPAPBJjdX3nqoT rU40DSF503PjrjLlB638L2VfyhBw X-Google-Smtp-Source: ADFU+vu4KkP0kzsX/OVxB6iwLK2yxPg8kBwblZz4he2I+nMMGQWG4Fq+wFr7lfWNw3xOwLXZxEvMoA== X-Received: by 2002:a7b:c1cf:: with SMTP id a15mr4815228wmj.85.1583512437723; Fri, 06 Mar 2020 08:33:57 -0800 (PST) Received: from ?IPv6:2003:ea:8f29:6000:d0bf:bce:c9d1:5027? (p200300EA8F296000D0BF0BCEC9D15027.dip0.t-ipconnect.de. [2003:ea:8f29:6000:d0bf:bce:c9d1:5027]) by smtp.googlemail.com with ESMTPSA id n1sm3531105wrj.77.2020.03.06.08.33.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 06 Mar 2020 08:33:57 -0800 (PST) Subject: Re: SFP+ support for 8168fp/8117 To: Hau Cc: Andrew Lunn , Kai-Heng Feng , Linux Netdev List , Kernel development list , Anthony Wong , Jason Yen References: <02F7CBDE-B877-481C-A5AF-2F4CBF830A2C@canonical.com> <80E9C881-91C8-4F29-B9CE-652F9EE0B018@canonical.com> <995bddbc4f9d48cbb3a289a7e9799f15@realtek.com> <12EA7285-06D7-44D3-B033-4F52A06123CC@canonical.com> <9AAC75D4-B04F-49CD-BBB9-11AE3382E4D8@canonical.com> <5A21808E-C9DA-44BF-952B-4A5077B52E9B@canonical.com> <20200304152849.GE3553@lunn.ch> <1252a766545b48aeafdff9702566565c@realtek.com> <20200306155824.GH25183@lunn.ch> From: Heiner Kallweit Message-ID: Date: Fri, 6 Mar 2020 17:33:47 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <20200306155824.GH25183@lunn.ch> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 06.03.2020 16:58, Andrew Lunn wrote: >> This chip can get fiber info through I2C. It also can detect LOS or control TX Disable via GPIO. > I think the question is whether the chip exposes these signals for kernel use. - Is there any register to read e.g. LOS status from? - Is the I2C bus accessed only by chip firmware, or can the OS access the I2C bus somehow? > O.K. Good > > You should be looking at using phylink to manage the SFP. > > Andrew >