From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeremy Higdon Subject: Re: mpt sets 64bit consistent mask yet requires mapping in same 4 GB chunk?!? Date: Thu, 19 Feb 2004 22:30:30 -0800 Sender: linux-scsi-owner@vger.kernel.org Message-ID: <20040220063030.GB530179@sgi.com> References: <0E3FA95632D6D047BA649F95DAB60E5703EF9453@exa-atlanta.se.lsil.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mtvcafw.SGI.COM ([192.48.171.6]:8333 "EHLO rj.sgi.com") by vger.kernel.org with ESMTP id S267773AbUBTGam (ORCPT ); Fri, 20 Feb 2004 01:30:42 -0500 Content-Disposition: inline In-Reply-To: <0E3FA95632D6D047BA649F95DAB60E5703EF9453@exa-atlanta.se.lsil.com> List-Id: linux-scsi@vger.kernel.org To: "Moore, Eric Dean" Cc: Alex Williamson , jbarnes@sgi.com, bjorn.helgaas@hp.com, willy@debian.org, James.Bottomley@steeleye.com, linux-scsi@vger.kernel.org On Thu, Feb 19, 2004 at 12:18:07PM -0500, Moore, Eric Dean wrote: > My comments are embedded below. > > > I don't think so, for two reasons. > > > > The first is that we require 64 bit PCI addresses for all > > PCI-X devices. > > > I'm not sure what you mean? > For PCI-X devices - are you saying passing something other than > 0xFFFFFFFFFFFFFFFF for the mask in pci_set_consistent_dma_mask() > fails? Correct. We require PCI-X devices to use the entire 64 address bits. jeremy