[openib-general] IPoIB multicast group creation

[Roland Dreier]

    Sean> When ipoib joins a multicast group, it provides a pkey as
    Sean> part of the request. Is this required for ipoib?

It's required to create the MCG.  For non-create joins, I guess it's
not needed but I don't think it hurts.  I don't think it's an IPoIB
requirement really, and I don't remember why I wrote the code that
way, but I don't think it hurts either.

 - R.