[PATCH] V-link optimization on K8M890/VT8237S

[Rudolf Marek]

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Hi all,

As more users of Asus M2V-MX SE emerged. Here is long pending patch I wanted to
write. It boots the SB/NB V-link performance to full duplex 533MB/s. (in fact x2
for FDX)

The default was 266MB/s but half duplex only. If you encourage any stability
issues we need to look into fine tuning the bus. The values are VIA recommended.

Rudolf
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[Stefan Reinauer]

Rudolf Marek wrote:
> Hi all,
>
> As more users of Asus M2V-MX SE emerged. Here is long pending patch I
> wanted to
> write. It boots the SB/NB V-link performance to full duplex 533MB/s.
> (in fact x2
> for FDX)
>
> The default was 266MB/s but half duplex only. If you encourage any
> stability
> issues we need to look into fine tuning the bus. The values are VIA
> recommended.
>
> Rudolf

Is there some way to find out the "correct" maximum speed, as on Hyper
Transport?

Anyways

Acked-by: Stefan Reinauer

[Rudolf Marek]

> Is there some way to find out the "correct" maximum speed, as on Hyper
> Transport?

Yes there is but it is fixed for the known SB/NB combinations so we don't need 
this yet. Also for each mode a set of fine tunes is necessary.
> Acked-by: Stefan Reinauer

Ok thanks.

I forgot to Signed-off-by: Rudolf Marek

Committed revision 4625.

Thanks,
Rudolf