[openib-general] [PATCH] [CM] 1/6 core kernel changes to bind cm_id's to a device

[Roland Dreier]

Now that cm_id's are per-IB-device, does it make sense to have the
userspace CM create a charcter node for each IB device?  It seems that
might simplify the interface.

uverbs handles up to 32 IB devices with minors 192...223, so using the
minors 224...255 for 32 ucm devices would make sense.  Unfortunately
uat is using minor 254, so we would have to do some rejiggering.  I
guess minor numbers shouldn't be driving this -- we should just pick
the right interface, whatever it is.

 - R.