From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265885AbUGIUBz (ORCPT ); Fri, 9 Jul 2004 16:01:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265955AbUGIUBz (ORCPT ); Fri, 9 Jul 2004 16:01:55 -0400 Received: from [203.178.140.15] ([203.178.140.15]:43780 "EHLO yue.st-paulia.net") by vger.kernel.org with ESMTP id S265885AbUGIUBq (ORCPT ); Fri, 9 Jul 2004 16:01:46 -0400 Date: Sat, 10 Jul 2004 05:01:47 +0900 (JST) Message-Id: <20040710.050147.104096421.yoshfuji@linux-ipv6.org> To: linux-kernel@borntraeger.net, linux-kernel@vger.kernel.org Cc: akpm@osdl.org, bastian@waldi.eu.org, yoshfuji@linux-ipv6.org, davem@redhat.com Subject: Re: [PATCH] s390 - mark IPv6 support for QETH as broken From: YOSHIFUJI Hideaki / =?iso-2022-jp?B?GyRCNUhGIzFRTEAbKEI=?= In-Reply-To: <200407092115.18097.linux-kernel@borntraeger.net> References: <20040709140630.GA27350@wavehammer.waldi.eu.org> <20040709120336.74e57ceb.akpm@osdl.org> <200407092115.18097.linux-kernel@borntraeger.net> Organization: USAGI Project X-URL: http://www.yoshifuji.org/%7Ehideaki/ X-Fingerprint: 9022 65EB 1ECF 3AD1 0BDF 80D8 4807 F894 E062 0EEA X-PGP-Key-URL: http://www.yoshifuji.org/%7Ehideaki/hideaki@yoshifuji.org.asc X-Face: "5$Al-.M>NJ%a'@hhZdQm:."qn~PA^gq4o*>iCFToq*bAi#4FRtx}enhuQKz7fNqQz\BYU] $~O_5m-9'}MIs`XGwIEscw;e5b>n"B_?j/AkL~i/MEaZBLP X-Mailer: Mew version 2.2 on Emacs 20.7 / Mule 4.1 (AOI) 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 In article <200407092115.18097.linux-kernel@borntraeger.net> (at Fri, 9 Jul 2004 21:15:17 +0200), Christian Borntraeger says: > Andrew Morton wrote: > > Bastian Blank wrote: > > > The attached patch marks IPv6 support for QETH broken, it is known to > > > need an extra patch to compile which was submitted one year ago but > > > never accepted. > > > > Well fixing it would be the preferable approach. Where is the "extra > > patch" and what was the complaint? > > http://oss.sgi.com/projects/netdev/archive/2003-02/msg00061.html I don't see why it does NOT compile as you said. It tried to add scheme for driver-specific interface identifier (including EUI-64 based on hardware address) generation scheme (in addition to the current ont; device-type-specific one). > The problem is that on s390 several virtual servers share the PHY and MAC > part of the card and therefore have the same MAC address. Unfortunately > IPv6 uses this MAC address to build an address. Now all virtual servers > have the same auto configured IPv6 address - which is bad. > The proposed solution was to enable network card drivers to define their own > ipv6 address auto configuration. I think it would be good to store interface identifier when initializing interface, by RTM_NEWLINK attribute probably. -- Hideaki YOSHIFUJI @ USAGI Project GPG FP: 9022 65EB 1ECF 3AD1 0BDF 80D8 4807 F894 E062 0EEA