From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org (ozlabs.org [203.10.76.45]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "mx.ozlabs.org", Issuer "CA Cert Signing Authority" (verified OK)) by bilbo.ozlabs.org (Postfix) with ESMTPS id EB0B5B7087 for ; Thu, 25 Jun 2009 18:07:20 +1000 (EST) Received: from sunset.davemloft.net (74-93-104-97-Washington.hfc.comcastbusiness.net [74.93.104.97]) by ozlabs.org (Postfix) with ESMTP id A3641DDD0B for ; Thu, 25 Jun 2009 18:07:20 +1000 (EST) Date: Thu, 25 Jun 2009 01:07:20 -0700 (PDT) Message-Id: <20090625.010720.07013435.davem@davemloft.net> To: avorontsov@ru.mvista.com Subject: Re: [PATCH v2 1/2] ucc_geth: Fix half-duplex operation for non-MII/RMII interfaces From: David Miller In-Reply-To: <20090625070813.GA25653@oksana.dev.rtsoft.ru> References: <20090625010232.GA28590@oksana.dev.rtsoft.ru> <20090625070813.GA25653@oksana.dev.rtsoft.ru> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Cc: linuxppc-dev@ozlabs.org, leoli@freescale.com, afleming@freescale.com, netdev@vger.kernel.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Anton Vorontsov Date: Thu, 25 Jun 2009 11:08:13 +0400 > On Thu, Jun 25, 2009 at 05:02:32AM +0400, Anton Vorontsov wrote: >> Currently the half-duplex operation seems to not work reliably for >> RGMII PHY interfaces. It takes about 10 minutes to boot NFS rootfs >> using 10/half link, following symptoms were observed: > > David, please ignore these patches, they just appear to > workaround the issue, but they don't fix the root cause (which > is unknown yet), and may cause other side to see the duplex > errors. Heh... Ok, thanks for the heads-up.