Re: Kernel fix for ICH7M controller

[Tejun Heo <htejun@gmail.com>]

Jonathan Dieter wrote:
> The ata_piix module doesn't detect that my laptop's disk controller 
> (Intel Corporation 82801GBM/GHM - ICH7 Family) is configured to have 
> PATA drives in the first two channels.  I looked at Intel's 
> documentation and they say that my controller isn't supposed to support 
> this configuration, but it's the default setup on this laptop, there's 
> no way to change it in the BIOS, and it works in Windows, so I'm 
> assuming this is a documentation error.
> 
> This patch changes one line in ata_piix.c so that it sees this 
> configuration as valid (and therefore recognizes my drives).  I've 
> tested it on my laptop and the module is now working perfectly (whereas 
> the kernel was using the old IDE driver previously with no DMA enabled).

Hello,

Interesting.  Can you post the result of 'lspci -n -vvv -xxx'?  I don't 
see why this support shouldn't go into mainline but wanna see if 
narrowing down the effect a bit (if PCI ID allows us to) would be a good 
idea.

Thanks.

-- 
tejun

-- 
VGER BF report: H 3.87351e-06