linux-kernel - RE: [PATCH 2.6.21-rc5] MSI: read-flush MSI-X table

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Message-ID: <08FE5CC30C9A3F41BF819A502CF7BF6EF97F5E@fmsmsx411.amr.corp.intel.com>
Date:	Tue, 27 Mar 2007 08:31:09 -0700
From:	"Williams, Mitch A" <mitch.a.williams@...el.com>
To:	"Grant Grundler" <grundler@...isc-linux.org>
Cc:	<linux-pci@...ey.karlin.mff.cuni.cz>, <gregkh@...e.de>,
	<ebiederm@...ssion.com>, <linux-kernel@...r.kernel.org>,
	<akpm@...ux-foundation.org>,
	"Kok, Auke-jan H" <auke-jan.h.kok@...el.com>
Subject: RE: [PATCH 2.6.21-rc5] MSI: read-flush MSI-X table

Grant Grundler wrote: 

>Why wouldn't MSI have the same problems as MSI-X?
>

Because enabling and disabling the MSI interrupt is done through
config space, and config space writes are not posted.  So we won't
see the problem that we do with MSI-X.

-Mitch
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