From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265444AbTLHQta (ORCPT ); Mon, 8 Dec 2003 11:49:30 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265432AbTLHQrT (ORCPT ); Mon, 8 Dec 2003 11:47:19 -0500 Received: from mail3.ithnet.com ([217.64.64.7]:16276 "HELO heather-ng.ithnet.com") by vger.kernel.org with SMTP id S265092AbTLHQkK (ORCPT ); Mon, 8 Dec 2003 11:40:10 -0500 X-Sender-Authentication: net64 Date: Mon, 8 Dec 2003 17:40:08 +0100 From: Stephan von Krawczynski To: linux-ns83820@kvack.org Cc: linux-kernel@vger.kernel.org Subject: Re: Problem Report: ns83820 / 802.1Q vlan / 2.4.23 Message-Id: <20031208174008.04bf0014.skraw@ithnet.com> In-Reply-To: <20031208145622.52d4ea11.skraw@ithnet.com> References: <20031208145622.52d4ea11.skraw@ithnet.com> Organization: ith Kommunikationstechnik GmbH X-Mailer: Sylpheed version 0.9.7 (GTK+ 1.2.10; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 8 Dec 2003 14:56:22 +0100 Stephan von Krawczynski wrote: > Hello, > > I just experienced a problem with ns83820 and 802.1Q vlan support. It seems > that incoming packets get dropped if the device is connected to a tagged > switch port. Reducing the mtu solves the problem but is of course not nice. > I remember some old docs where it says there can be problems because of the > oversized tagged packets. Intel e100 seems to work flawlessly in same setup. Regarding this problem I just did this incredibly complex patch, which seems to work. Maintainer please beat me... ;-) Regards, Stephan --- drivers/net/ns83820.c-orig 2003-12-08 17:33:14.000000000 +0100 +++ drivers/net/ns83820.c 2003-12-08 17:33:31.000000000 +0100 @@ -141,7 +141,7 @@ #define NR_TX_DESC 128 /* not tunable */ -#define REAL_RX_BUF_SIZE (RX_BUF_SIZE + 14) /* rx/tx mac addr + type */ +#define REAL_RX_BUF_SIZE (RX_BUF_SIZE + 14 + 4) /* rx/tx mac addr + type + vlan*/ #define MIN_TX_DESC_FREE 8