Re: 2.6.19: ALi M5229 - CD-ROM not found with pata_ali

From: Andrey Borzenkov
Date: Sat Dec 02 2006 - 16:27:48 EST


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On Saturday 02 December 2006 00:57, Alan wrote:
> > Still the same in 2.6.19 + suspend pata_ali patch. The only way I can get
> > CD-ROM is with
> >
> > options pata_ali atapi_max_xfer_mask=0x7f
>
> And I've still got no idea why. Having studied the docs, the old and new
> drivers and a lot more I see no difference to explain it.
>

Irrespectively - why libata does not fall back to PIO when DMA failed? This at
least would have given working device (even somewhat degraded perfrormance).

- -andrey
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