[Soekris] Re: bridge with access on both interfaces

[Poul-Henning Kamp]

In message <20031225102549.A79161 at xorpc.icir.org>, Luigi Rizzo writes:

>If you have shared interrupts, and one of the interfaces is not up, you
>end up doing a lot of useless calls to sis_stop(), which is terribly
>expensive (it even includes a DELAY(1000) call).
>At the very least, one should add a 'stopped' flag so that
>sis_stop() is only called when necessary -- or possibly even
>never at all.
>
>The second (minor) cause of performance loss are the calls
>(not shown above)
>to disable and re-enable the interrupts around the driver. These are
>completely useless, yet cause some extra PCI transactions.

I don't know if it is correct, but at the very least I have thought
the same thoughts when I looked at the driver last, but I didn't
get time to try out the idea...

Somebody with some spare time should look at this...

Poul-Henning

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