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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 001B8C4360C for ; Fri, 27 Sep 2019 18:29:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D2C75217D9 for ; Fri, 27 Sep 2019 18:29:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728146AbfI0S3J (ORCPT ); Fri, 27 Sep 2019 14:29:09 -0400 Received: from shards.monkeyblade.net ([23.128.96.9]:35254 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727205AbfI0S3J (ORCPT ); Fri, 27 Sep 2019 14:29:09 -0400 Received: from localhost (231-157-167-83.reverse.alphalink.fr [83.167.157.231]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id B7FAC153EF900; Fri, 27 Sep 2019 11:29:06 -0700 (PDT) Date: Fri, 27 Sep 2019 20:29:05 +0200 (CEST) Message-Id: <20190927.202905.2156096619479919255.davem@davemloft.net> To: haan@cellavision.se Cc: andrew@lunn.ch, f.fainelli@gmail.com, hkallweit1@gmail.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, antoine.tenart@bootlin.com, hans.andersson@cellavision.se Subject: Re: [PATCH] net: phy: micrel: add Asym Pause workaround for KSZ9021 From: David Miller In-Reply-To: <20190926075437.18088-1-haan@cellavision.se> References: <20190926075437.18088-1-haan@cellavision.se> X-Mailer: Mew version 6.8 on Emacs 26.2 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Fri, 27 Sep 2019 11:29:08 -0700 (PDT) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Hans Andersson Date: Thu, 26 Sep 2019 09:54:37 +0200 > From: Hans Andersson > > The Micrel KSZ9031 PHY may fail to establish a link when the Asymmetric > Pause capability is set. This issue is described in a Silicon Errata > (DS80000691D or DS80000692D), which advises to always disable the > capability. > > Micrel KSZ9021 has no errata, but has the same issue with Asymmetric Pause. > This patch apply the same workaround as the one for KSZ9031. > > Signed-off-by: Hans Andersson Applied and queued up for -stable.