On Sat, Apr 25, 2009 at 05:21:42PM +0800, Herbert Xu
([email protected]) wrote:
> > Why can't it be used by default for all crypto operations instead of
> > synchronous one?
>
> PCI-based drivers will not benefit from spreading the requests
> across CPUs. If anything they will suffer from the synchronisation.
What's the deal PCI drivers have with CPUs data comes from/to?
They do not touch cache, just run DMA transfer and complete the request.
--
Evgeniy Polyakov
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