bge driver and MSI

[David Christensen]

> > MSI is broken on this device (actually all PCI/PCI-X devices in the 
> > 57XX family).  The interrupt will be asserted as expected 
> but masking 
> > the interrupt does not work.  For those newer 1Gb PCIe 
> devices that do 
> > work correctly with MSI, only a single message is actually 
> supported.
> 
> Might be a good thing of someone would work up a man page 
> paragraph to this effect.
> 

As a more general question, what would be the right medium to
document such device errata as it relates to a driver?  Is the 
man page the best location or would it be better to add a
table near the top of the driver file which summarizes the
bugs and the workarounds?  Is there a general consensus?

Dave