Re: 2.6.9: VIA sATA cannot switch to 32bit I/O?

[Jeff Garzik]

Jan Marek wrote:
> Hallo l-k,
>
> I have problem with my Abit AV8 MB (s939 with VIA KT800Pro chipset and
> VIA sATA controller and 120GB Seagate Barracuda disk): I cannot switch
> 32bit access to disk to on?! I'm using libata driver...
>
> When I use hdparm -c1 /dev/sda, I've got some error message (sorry, I
> haven't this message here, it's my home computer). Therefore disk is too
> slow to putting data for burning CD's and I need 'burnfree' feature...
>
> Please, have anyone advice for me to speedup disk access, or is it
> possible?

This will not speed up disk access.  libata uses 16-bit I/O 
unconditionally for PIO data transfers...

 ...but you are using DMA for data transfers, which is light years 
faster than PIO anyway.

	Jeff



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