Re: [patch 2.6.13 2/2] 3c59x: add option for using memory-mappedPCI I/O resources

From: Andrew Morton
Date: Tue Sep 06 2005 - 16:06:33 EST


Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote:
>
> On Tue, Sep 06, 2005 at 04:44:00PM -0400, John W. Linville wrote:
> > Add module option to enable 3c59x driver to use memory-mapped PCI I/O
> > resources. This may improve performance for those devices so equipped.
> >
> > Add "use_mmio=1" to the 3c59x module options in order to enable this
> > functionality.
>
> I'm not sure a module option makes sense for this setting, except maybe
> as a debugging aid. You should rather have a flag in the PCI IDs private
> data that can be used to enable mmio for those cards that support it.

I guess it's OK for the initial testing. Plus we should make the new
feature default to "on" during initial public testing. I'll make that
change.

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