From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Tue, 08 Oct 2013 11:05:31 +0200 (CEST) Received: from mx1.redhat.com ([209.132.183.28]:65355 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S6827313Ab3JHJFYsjPkm (ORCPT ); Tue, 8 Oct 2013 11:05:24 +0200 Received: from int-mx12.intmail.prod.int.phx2.redhat.com (int-mx12.intmail.prod.int.phx2.redhat.com [10.5.11.25]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id r9895Bj1024153 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 8 Oct 2013 05:05:11 -0400 Received: from dhcp-26-207.brq.redhat.com (vpn-57-75.rdu2.redhat.com [10.10.57.75]) by int-mx12.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id r98951d2003632 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Tue, 8 Oct 2013 05:05:03 -0400 Date: Tue, 8 Oct 2013 11:07:16 +0200 From: Alexander Gordeev To: Tejun Heo Cc: linux-kernel@vger.kernel.org, Bjorn Helgaas , Ralf Baechle , Michael Ellerman , Benjamin Herrenschmidt , Martin Schwidefsky , Ingo Molnar , Dan Williams , Andy King , Jon Mason , Matt Porter , linux-pci@vger.kernel.org, linux-mips@linux-mips.org, linuxppc-dev@lists.ozlabs.org, linux390@de.ibm.com, linux-s390@vger.kernel.org, x86@kernel.org, linux-ide@vger.kernel.org, iss_storagedev@hp.com, linux-nvme@lists.infradead.org, linux-rdma@vger.kernel.org, netdev@vger.kernel.org, e1000-devel@lists.sourceforge.net, linux-driver@qlogic.com, Solarflare linux maintainers , "VMware, Inc." , linux-scsi@vger.kernel.org Subject: Re: [PATCH RFC 00/77] Re-design MSI/MSI-X interrupts enablement pattern Message-ID: <20131008090716.GA10561@dhcp-26-207.brq.redhat.com> References: <20131007182117.GC27396@htj.dyndns.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20131007182117.GC27396@htj.dyndns.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.25 Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 38259 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: agordeev@redhat.com Precedence: bulk List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: linux-mips X-List-ID: linux-mips List-subscribe: List-owner: List-post: List-archive: X-list: linux-mips On Mon, Oct 07, 2013 at 02:21:17PM -0400, Tejun Heo wrote: > Whee.... that's a lot more than I expected. I was just scanning > multiple msi users. Maybe we can stage the work in more manageable > steps so that you don't have to go through massive conversion only to > do it all over again afterwards and likewise people don't get > bombarded on each iteration? Maybe we can first update pci / msi code > proper, msi and then msix? Multipe MSIs is just a handful of drivers, really. MSI-X impact still will be huge. But if we opt a different name for the new pci_enable_msix() then we could first update pci/msi, then drivers (in few stages possibly) and finally remove the old implementation. > tejun -- Regards, Alexander Gordeev agordeev@redhat.com