From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751083AbdFTDTP (ORCPT ); Mon, 19 Jun 2017 23:19:15 -0400 Received: from szxga02-in.huawei.com ([45.249.212.188]:8348 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750905AbdFTDTO (ORCPT ); Mon, 19 Jun 2017 23:19:14 -0400 Subject: Re: [PATCH NET] net/hns:bugfix of ethtool -t phy self_test To: Andrew Lunn , Florian Fainelli CC: , , , , , , , , , , , , , , References: <1497605091-94725-1-git-send-email-linyunsheng@huawei.com> <7500513f-e263-838c-12a1-4343f7281f1a@gmail.com> <20170619215435.GA13704@lunn.ch> From: l00371289 Message-ID: Date: Tue, 20 Jun 2017 11:18:48 +0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0 MIME-Version: 1.0 In-Reply-To: <20170619215435.GA13704@lunn.ch> Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.74.190.125] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A0B0206.59489421.009E,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2014-11-16 11:51:01, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 4ba83d7ea8dfdee36bff688559aeba62 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Andrew On 2017/6/20 5:54, Andrew Lunn wrote: > On Mon, Jun 19, 2017 at 02:00:43PM -0700, Florian Fainelli wrote: >> On 06/16/2017 02:24 AM, Lin Yun Sheng wrote: >>> This patch fixes the phy loopback self_test failed issue. when >>> Marvell Phy Module is loaded, it will powerdown fiber when doing >>> phy loopback self test, which cause phy loopback self_test fail. >>> >>> Signed-off-by: Lin Yun Sheng >>> --- >>> drivers/net/ethernet/hisilicon/hns/hns_ethtool.c | 16 ++++++++++++++-- >>> 1 file changed, 14 insertions(+), 2 deletions(-) >>> >>> diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c >>> index b8fab14..e95795b 100644 >>> --- a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c >>> +++ b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c >>> @@ -288,9 +288,15 @@ static int hns_nic_config_phy_loopback(struct phy_device *phy_dev, u8 en) >> >> The question really is, why is not this properly integrated into the PHY >> driver and PHYLIB such that the only thing the Ethernet MAC driver has >> to call is a function of the PHY driver putting it in self-test? > > This whole driver pokes various PHY registers, rather than use > phylib. And it does so without taking the PHY lock. I will consider using phylib as much as possible, thanks. It also assumes it > is a Marvell PHY and i don't see anywhere it actually verifies this. When it said Marvell Phy , I meant Marvell Phy with fibre support. I will send anther patch to only setting bit in Fiber Control when it is a Marvell Phy with fibre support. Thanks for reply. Best Regards Yunsheng Lin > > This is all broken. > > Andrew > > . >