From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265574AbUGGWfg (ORCPT ); Wed, 7 Jul 2004 18:35:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265590AbUGGWfg (ORCPT ); Wed, 7 Jul 2004 18:35:36 -0400 Received: from mion.elka.pw.edu.pl ([194.29.160.35]:49536 "EHLO mion.elka.pw.edu.pl") by vger.kernel.org with ESMTP id S265574AbUGGWf1 (ORCPT ); Wed, 7 Jul 2004 18:35:27 -0400 From: Bartlomiej Zolnierkiewicz To: "John W. Ross" Subject: Re: Increasing IDE Channels Date: Thu, 8 Jul 2004 00:41:07 +0200 User-Agent: KMail/1.5.3 References: <001801c46470$94116820$0a01a8c0@jwrdesktop> In-Reply-To: <001801c46470$94116820$0a01a8c0@jwrdesktop> Cc: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200407080041.07508.bzolnier@elka.pw.edu.pl> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org [ next time please use/cc linux-ide ML ] On Thursday 08 of July 2004 00:20, John W. Ross wrote: > Greetings, Hi, > Changed ide.h: > > IDE_NR_PORTS (10) > to > IDE_NR_PORTS (12) You've changed the wrong define. Bump MAX_HWIFS in instead. > 1.) Could someone please explain why there is a limit of 10 interfaces (is > this something that I shouldn't even try)? - there are no more major numbers assigned for IDE - for majority people of people it is enough - IDE driver uses static data structures so higher number of interfaces means more memory wasted (if you don't use all of them of course) - nobody cared > 2.)What did I miss on moving to 12? It should work with MAX_HWIFS corrected. > 3.) I could understand a limit of 12, as hda, hdb, hdc... hdw, hdx, would > only allow a possible 13th interface, but at 14 you would totally exhaust > the alphabet, but is that still relevant with the newer method of > enumerating partitions? What newer method are you talking about? Regards, Bartlomiej