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

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Message-ID: <453E8FB7.9090001@sgi.com>
Date:	Tue, 24 Oct 2006 17:12:07 -0500
From:	John Partridge <johnip@....com>
To:	Roland Dreier <rdreier@...co.com>
Cc:	Matthew Wilcox <matthew@....cx>, 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
Subject: Re: Ordering between PCI config space writes and MMIO reads?

Roland Dreier wrote:
>  > 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

I'll give it a try and get back to you.

John

-- 
John Partridge

Silicon Graphics Inc
Tel:  651-683-3428
Vnet: 233-3428
E-Mail: johnip@....com
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