Re: 64bit DMA in i2o_block

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Hello,

Andi Kleen wrote:
Markus Lidel <Markus.Lidel@xxxxxxxxxxxxxxxxx> writes:
I believe it's a driver issue. Do you have a testing-system where you
could try out the appended patch?
So it would bug instead?

Yes, because ATM i don't know why it doesn't work. It's just for debugging.

Can you please just get rid of that CONFIG? Such things shouldn't be CONFIGs, but have a suitable default. In particular drivers
running under 64bit should always support 64bit DMA.

The 64-bit DMA is only available on Adaptec controllers, all other I2O controllers only work with 32-bit DMA. Although the 64-bit DMA is (as far as i can remember) slower then the 32-bit DMA and is therefore only useful on systems which run out of memory.


Best regards,


Markus Lidel
------------------------------------------
Markus Lidel (Senior IT Consultant)

Shadow Connect GmbH
Carl-Reisch-Weg 12
D-86381 Krumbach
Germany

Phone:  +49 82 82/99 51-0
Fax:    +49 82 82/99 51-11

E-Mail: Markus.Lidel@xxxxxxxxxxxxxxxxx
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