From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752017AbXDDQJ3 (ORCPT ); Wed, 4 Apr 2007 12:09:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751998AbXDDQJ3 (ORCPT ); Wed, 4 Apr 2007 12:09:29 -0400 Received: from terminus.zytor.com ([192.83.249.54]:37327 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752017AbXDDQJ2 (ORCPT ); Wed, 4 Apr 2007 12:09:28 -0400 Message-ID: <4613CD34.8080509@zytor.com> Date: Wed, 04 Apr 2007 09:07:16 -0700 From: "H. Peter Anvin" User-Agent: Thunderbird 1.5.0.9 (X11/20070212) MIME-Version: 1.0 To: David Lang CC: Alan Cox , David Miller , dwmw2@infradead.org, flar@allandria.com, paulus@samba.org, linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] Stop pmac_zilog from abusing 8250's device numbers. References: <1175644642.10567.31.camel@shinybook.infradead.org><200704032210 02.GA13210@cynthia.pants.nu><1175648051.10567.61.camel@shinybook.infradead. org><20070403.181645.68159458.davem@davemloft.net><20070404022828.5c9b97f3@ the-village.bc.nu> <20070404024400.56d016e1@the-village.bc.nu> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org David Lang wrote: > On Wed, 4 Apr 2007, Alan Cox wrote: > >>>> You don't get machines with 64 ethernet ports on add-in cards. There >>>> are >>>> good reasons for the naming schemes in use. >>> >>> I've seen machines offering up to 48, what's the magic number that >>> makes you >>> need to chagne nameing schemes? >> >> Have you tried working with 48 ports when they are not numbered 0-47 or >> in some logical fashion ? > > no, but that's what we're wanting with serial ports as well. a system > with 50 serial ports should have them numbered 0-49, not typea0-5, > typeb0-39, typec0-5 > I would actually disagree. I have systems with multiport serial cards installed, and I much prefer those to be named differently. Not only do I not have to worry about the same problem I *constantly* have with onboard Ethernet cards -- whoops I just installed an expansion card and suddenly my onboard NIC is eth2! -- but the expansion serial ports tend to be *different.* For example, on my serial server, the Cyclades ports (ttyC*) use RJ-45 connections from an external expansion module, whereas of course the builtin ones (ttyS*) use DB-9s. -hpa