On Sat, Oct 25, 2008 at 10:21:03PM +0400, Sergei Shtylyov wrote:
> Hello.
>
> Borislav Petkov wrote:
>
>>>> For 'addr' we may try to use 4 bytes instead of the current 32 ones but lets
>>>> fix the regression first.
>>>>
>>> Alas, TX4939 requeires 8-byte DMA address (and byte count)
>>> alignment. Another semi-compatible SFF-8038 implementation...
>>>
>>
>> ... which calls for a field in the capabilities and mechanical status page
>> saying something like: hello, I'm a xy device and I can do z bytes dma
>> alignment, otherwise I get cranky and don't work anymore :)
>>
>
> I didn't get it -- TX4939 is IDE host controller and I can't imagine
> how an ATAPI device could care about the buffer address alignment on the
> host side...
Sorry about that - I was talking only about the ATAPI device. Totally unrelated,
my bad.
--
Regards/Gruss,
Boris.
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