Back in the old (old) days, Infiniband HCAs had memory component on it. Today's HCA no longer do that and instead the driver pin-down memory out of the machine's memory via the PCI bus.
works like a charm :-)
thanks yairi for reply
I also thought the same way , but when I browsed through the code, I found that contexts (along with keeping in memory) are also programmed to device that y m wondered where do these stored when there is no memory on board
not sure my fried. it somehow figures it out i guess :-) try it.