svn commit: r215327 - head/sys/dev/nfe

[Tom Judge]

On 11/14/2010 06:11 PM, Alexander Motin wrote:
> Pyun YongHyeon wrote:
>> Author: yongari
>> Date: Sun Nov 14 23:37:43 2010
>> New Revision: 215327
>> URL: http://svn.freebsd.org/changeset/base/215327
>>
>> Log:
>>   P5N32-SLI PREMIUM from ASUSTeK is known to have MSI/MSI-X issue
>>   such that nfe(4) does not work with MSI-X. When MSI-X support was
>>   introduced, I remember MCP55 controller worked without problems so
>>   the issue could be either PCI bridge or BIOS issue. But I also
>>   noticed snd_hda(4) disabled MSI on all MCP55 chipset so I'm still
>>   not sure this is generic issue of MCP55 chipset. If this was PCI
>>   bridge issue we would have added it to a system wide black-list
>>   table but it's not clear to me at this moment whether it was caused
>>   by either broken BIOS or silicon bug of MCP55 chipset.
> 
> MCP5x seem to be infinite source of surprises. Some reports I remember:
>  - snd_hda not working with MSI enabled - AFAIR not just loosing
> interrupts but completely stops responding;
>  - using regular HPET interrupts breaks HDA sound after some time
> (interrupts are not shared), while legacy_route mode operates properly;
>  - at least on one system I've seen non-functioning SATA interrupts.
> It would be nice to find what's going on there. I've got tired to add
> workarounds for it. :(
> 

Another one for the list is Intel em cards not working with MSI enabled
on MCP51 systems. (On 8.1)

TJ

-- 
TJU13-ARIN