From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?ISO-8859-1?Q?Niccol=F2_Belli?= Subject: Re: sky2 still badly broken Date: Thu, 03 May 2012 21:36:50 +0200 Message-ID: <4FA2DE52.306@linuxsystems.it> References: <4F9AFE4E.8010108@linuxsystems.it> <20120430122501.5fff4b1e@nehalam.linuxnetplumber.net> <4FA14EC6.6050207@linuxsystems.it> <20120502115618.04ab8ff9@s6510.linuxnetplumber.net> <4FA2527A.6020808@linuxsystems.it> <20120503082352.771acab3@nehalam.linuxnetplumber.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: netdev@vger.kernel.org To: Stephen Hemminger Return-path: Received: from mail.linuxsystems.it ([2.119.245.41]:47628 "EHLO mail.linuxsystems.it" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755470Ab2ECTfl (ORCPT ); Thu, 3 May 2012 15:35:41 -0400 In-Reply-To: <20120503082352.771acab3@nehalam.linuxnetplumber.net> Sender: netdev-owner@vger.kernel.org List-ID: Il 03/05/2012 17:23, Stephen Hemminger ha scritto: > The receiver on some versions of the chip can't keep up with full spe= ed > of 1G bit/sec. The receive FIFO has hardware issues, and since I don= 't > work for Marvell, working around the problem is guesswork. Just one question: if that is true why don't I have any problem with a=20 point to point gigabit link? I did transfer 3GB from ram to ram (ramfs)= =20 at 100+MB/s without any issue in a point to point setup, as soon as I=20 attach it to the switch I have problems (very low transfer rate and ton= s=20 of rx errors). Niccol=F2