From owner-freebsd-questions@FreeBSD.ORG Thu Oct 30 12:15:20 2008 Return-Path: <owner-freebsd-questions@FreeBSD.ORG> Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 32C681065679 for <freebsd-questions@freebsd.org>; Thu, 30 Oct 2008 12:15:20 +0000 (UTC) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from wojtek.tensor.gdynia.pl (wojtek.tensor.gdynia.pl [IPv6:2001:4070:101:2::1]) by mx1.freebsd.org (Postfix) with ESMTP id 3E6B18FC1A for <freebsd-questions@freebsd.org>; Thu, 30 Oct 2008 12:15:18 +0000 (UTC) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from wojtek.tensor.gdynia.pl (localhost [IPv6:::1]) by wojtek.tensor.gdynia.pl (8.14.3/8.14.2) with ESMTP id m9UCF5cG012599; Thu, 30 Oct 2008 13:15:05 +0100 (CET) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from localhost (wojtek@localhost) by wojtek.tensor.gdynia.pl (8.14.3/8.14.2/Submit) with ESMTP id m9UCF4lx012596; Thu, 30 Oct 2008 13:15:04 +0100 (CET) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Date: Thu, 30 Oct 2008 13:15:04 +0100 (CET) From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> To: Graham Bentley <admin@cpcnw.co.uk> In-Reply-To: <op.ujt418h2t4j7n6@3bsd.cpcnw.co.uk> Message-ID: <20081030131123.S12581@wojtek.tensor.gdynia.pl> References: <op.ujt418h2t4j7n6@3bsd.cpcnw.co.uk> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: freebsd-questions@freebsd.org Subject: Re: Marvell 88E8052 PCI-E LAN on FreeBSD 7.0 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions <freebsd-questions.freebsd.org> List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, <mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions> List-Post: <mailto:freebsd-questions@freebsd.org> List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help> List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, <mailto:freebsd-questions-request@freebsd.org?subject=subscribe> X-List-Received-Date: Thu, 30 Oct 2008 12:15:20 -0000 > I discovered that adding -txcsum and -rxcsum (i.e. > disabling hardware checksuming) to the ifconfig > statement, the performance was as quick as it is > on that other OS! there is a lot of buggy chips produced today. normally the should go to thrash, but - what a problem - they put onto motherboards so user have no choice. then they include windoze drivers that simply disable non-working features and they are happy, not even telling anyone about this. unless you are buying motherboard for servers, DO NOT expect lan to work ;) it's my common practice. nvidia ethernet was the worst one (it never worked), but realtek gigabit ethernet on other motherboard needed the same as yours (-txcsum, -rxcsum) or it randomly drop packets, probably because it calculates checksums wrong.