From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: [PATCH] fix check_region usage in eata_pio Date: Wed, 2 Jun 2004 23:41:02 +0200 Sender: linux-scsi-owner@vger.kernel.org Message-ID: <20040602214102.GA2689@lst.de> References: <547AF3BD0F3F0B4CBDC379BAC7E4189FAD51AC@otce2k03.adaptec.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from verein.lst.de ([212.34.189.10]:22505 "EHLO mail.lst.de") by vger.kernel.org with ESMTP id S262431AbUFBVlR (ORCPT ); Wed, 2 Jun 2004 17:41:17 -0400 Content-Disposition: inline In-Reply-To: <547AF3BD0F3F0B4CBDC379BAC7E4189FAD51AC@otce2k03.adaptec.com> List-Id: linux-scsi@vger.kernel.org To: "Salyzyn, Mark" Cc: "Randy.Dunlap" , jejb@steeleye.com, linux-scsi@vger.kernel.org On Wed, Jun 02, 2004 at 09:24:40AM -0400, Salyzyn, Mark wrote: > As one of the engineers that developed this card, the EATA ISA cards > take 9 bytes of accessible space. I strongly recommend this patch since > taking 8 carries with it risks. > > The EISA and PCI cards took 32 and 16 bytes respectively though, which > should not be a problem since these are (BIOS) managed resources. The > PCI card when forced to occupy ISA addresses (170 and 1F0) typically did > not collide with other ISA resources since most cards occupy several > registers on even boundaries and could not be placed into the touchy +9 > to +15 region. Thanks a lot for the information. I'll rework the patch to take that into account. You don't happen to have some of these boards still around at adaptec, do you? :)