A few days ago, Manuel changed the pciide driver to not enable DMA
unless it recognizes the specific product ID of the chip.  The product
ID for you IDE chip is not listed in the driver.  Ergo, DMA is not
being enabled.

I tend to think this is kind of a lose.  A device claiming to be a PCI
IDE controller will in general properly support the spec; ones that do
not are the exception, and should be treated as such.