Support for Promise SX4060

[Mark Kirkwood]

I am considering one of these cards, but thought is worth checking here 
first - particularly as the ata(4) doco does *not* list the chip 
(PDC20621) as supported (last supported chip in that range is PDC20620).

However, src/sys/dev/ata/ata-chipset.c includes this chip (reading src 
from 5.4-RELEASE).

I would be interested to know if anyone has tried one out, or knows for 
sure whether of not they are supported (and what does and does not work 
- e.g. RAID5?).

thanks

Mark