linux-kernel - Re: Ordering between PCI config space writes and MMIO reads?

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Date:	Tue, 24 Oct 2006 14:51:30 -0700
From:	Roland Dreier <rdreier@...co.com>
To:	Matthew Wilcox <matthew@....cx>
Cc:	Jeff Garzik <jeff@...zik.org>, linux-pci@...ey.karlin.mff.cuni.cz,
	linux-ia64@...r.kernel.org, linux-kernel@...r.kernel.org,
	openib-general@...nib.org, John Partridge <johnip@....com>
Subject: Re: Ordering between PCI config space writes and MMIO reads?

 > I think the right way to fix this is to ensure mmio write ordering in
 > the pci_write_config_*() implementations.  Like this.

I'm happy to fix this in the PCI core and not force drivers to worry
about this.

John, can you confirm that this patch fixes the issue for you?

Thanks,
  Roland
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