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Date:	Tue, 8 Oct 2013 11:07:16 +0200
From:	Alexander Gordeev <agordeev@...hat.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	linux-kernel@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>,
	Ralf Baechle <ralf@...ux-mips.org>,
	Michael Ellerman <michael@...erman.id.au>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Ingo Molnar <mingo@...hat.com>,
	Dan Williams <dan.j.williams@...el.com>,
	Andy King <acking@...are.com>, Jon Mason <jon.mason@...el.com>,
	Matt Porter <mporter@...nel.crashing.org>,
	linux-pci@...r.kernel.org, linux-mips@...ux-mips.org,
	linuxppc-dev@...ts.ozlabs.org, linux390@...ibm.com,
	linux-s390@...r.kernel.org, x86@...nel.org,
	linux-ide@...r.kernel.org, iss_storagedev@...com,
	linux-nvme@...ts.infradead.org, linux-rdma@...r.kernel.org,
	netdev@...r.kernel.org, e1000-devel@...ts.sourceforge.net,
	linux-driver@...gic.com,
	Solarflare linux maintainers <linux-net-drivers@...arflare.com>,
	"VMware, Inc." <pv-drivers@...are.com>, linux-scsi@...r.kernel.org
Subject: Re: [PATCH RFC 00/77] Re-design MSI/MSI-X interrupts enablement
 pattern

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@...hat.com
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