From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Maule Subject: Re: FW: MSI-X on 2.6.15 Date: Mon, 30 Jan 2006 13:09:37 -0600 Message-ID: <20060130190937.GB31945@sgi.com> References: <20060130173852.GA16259@kroah.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from omx2-ext.sgi.com ([192.48.171.19]:33481 "EHLO omx2.sgi.com") by vger.kernel.org with ESMTP id S964884AbWA3TKD (ORCPT ); Mon, 30 Jan 2006 14:10:03 -0500 Content-Disposition: inline In-Reply-To: <20060130173852.GA16259@kroah.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Greg KH Cc: "Miller, Mike (OS Dev)" , linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, "Patterson, Andrew D (Linux R&D)" As Ashok Raj has already responded, there was support for APIC-based MSI[-X] on ia64 before my patches. I personally do not know if it worked or not, my suspicion is that it didn't get much airtime due to MSI being off by default until somewhat recently. I believe MSI was working on zx1 after my patch, so I suspect it worked there before my patch as well. I can't speak to MSI-X. Mike, is your driver capable of MSI (vs. MSI-X)? As a datapoint, could you try that? Mark On Mon, Jan 30, 2006 at 09:38:52AM -0800, Greg KH wrote: > On Mon, Jan 30, 2006 at 10:33:50AM -0600, Miller, Mike (OS Dev) wrote: > > Greg KH, > > We have the same results on 2.6.15, the MSI-X table is all zeroes. See > > below. Any ideas of what to do do next? The driver works on x86_64. Is > > there any thing extra I need to do on ia64? > > ia64 didn't really have msi support before the latest -mm kernel, right > Mark? > > > Andrew, can you try 2.6.16-rc1 and/or the rc1-git4 kernels? > > How about the -mm kernel? > > thanks, > > greg k-h