/IB:m,on|off|auto

where:

m	Number PC Card adapter
on	all filters on parent PCI-2-PCI bridges will be ignored. This means that resources for socket will be allocated the same way as it is located on PCI Bus 0.
off	Resources for socket will be allocated inside of filters on parent PCI-2-PCI bridge(s)
auto	A default setting for this parameter. CardWare will automatically detect type of parent PCI-2-PCI bridge(s). If bridge uses a Subtractive Decoding (a bridge which passes all memory and I/O requests behind), then filters on that bridge will be ignored. If bridge uses a Positive Decoding (a bridge passes memory and I/O requests only within an assigned address range), then resources will be allocated inside filters on the bridge.