From owner-freebsd-hackers Tue Sep 10 4: 5:30 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1739C37B400 for ; Tue, 10 Sep 2002 04:05:25 -0700 (PDT) Received: from irmgard.exp-math.uni-essen.de (irmgard.exp-math.uni-essen.de [132.252.150.18]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9AB0543E42 for ; Tue, 10 Sep 2002 04:05:20 -0700 (PDT) (envelope-from birger@exp-math.uni-essen.de) Received: from lomin.exp-math.uni-essen.de (werner.exp-math.uni-essen.de [132.252.150.17]) by irmgard.exp-math.uni-essen.de (8.12.2/8.12.2) with ESMTP id g8AB5I5D048628; Tue, 10 Sep 2002 13:05:19 +0200 Received: by lomin.exp-math.uni-essen.de (Postfix, from userid 501) id 6FDA87185D; Tue, 10 Sep 2002 12:51:05 +0200 (CEST) Date: Tue, 10 Sep 2002 12:51:05 +0200 From: Birger Toedtmann To: freebsd-hackers@freebsd.org Subject: bge problems (was: gigabit NIC of choice?) Message-ID: <20020910105105.GA2863@lomin.exp-math.uni-essen.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.3.28i Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Hi, > What's the gigabit ethernet NIC of choice these days? (I've had good > experiences with the NetGear G620T, but apparently this card is no > longer being sold.) [ discussion followed ] just as this comes up, I have a question. Has anyone had experiences with the bge driver and related cards? We had some weird problems here lately: - bought two 3com 996-SX (fiber) cards and plugged them into ASUS A7M266-D boards with AMD Athlon 1.8GHz CPUs, - brought up FBSD 4.6 and tried some networking -->> All packets (to and fro) that where bigger than total IP length of 214 bytes were garbled. To be more specific, it seemed to us that some 8 byte regions haven't been copied correctly from the cards at some point when the packets were larger. (The boards worked fine with normal 100Mbit cards, BTW.) To make matters more interesting, we then put the (Gbit) cards into AMD-Duron-700MHz-Systems with 32bit bus only - as apposed to the A7M266-D which had a 64bit bus: -->> The cards worked just fine with all sorts (and sizes) of packets, but performance was - surpise, surprise - limited to 0.25 Gbit. So it seems there is some problem with the bge driver/card/64bit bus. Does the scenario ring a bell to someone of you? Regards, Birger To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message