No disks usable on a P5NE MB (aka regession is r219737)

[Baptiste Daroussin]

On Tue, Nov 15, 2011 at 12:46:41PM -0500, John Baldwin wrote:
[...]
> and
> > 10 remove that block :
> > http://people.freebsd.org/~bapt/workaround-to-boot-p5ne.diff
> 
> Yeah, the problem is that NVIDIA chipsets seem to have really odd behavior in 
> that once you turn MSI mapping on for a given node in the HyperTransport tree 
> it expects all child devices to only use MSI and not INTx.  Linux has a lot of 
> quirk code to try to handle this by only turning on the mapping window when 
> MSI is enabled for a given device.  However, it has lots of hacks to try to 
> find the right Host-PCI Bridge that a given device is a child of.  I'm mostly 
> tempted to just disable MSI on NVIDIA chipsets that have these issues rather 
> than adding the same number of quirks.  However I haven't really had time to 
> sit down and look at this.
> 

Thanks for reply, if you can do some testing for you if you want.

regards,
Bapt
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