[ofa-general] IPOIB/CM increase retry counts

[Sean Hefty]

>Saying all that, I don't think we want to have --any RNR retries--, as
>for retries, I am open to hear what others think.

I'm really not all that familiar with ipoib protocol, but if it's being
implemented over an RC connection, then adding an RNR retry seems to make sense
to me.  I believe using UC is better, but if it's over RC, I don't know that we
want to take the hit of tearing down and re-establishing the connection just
because we have a fast sender.  (This is just an opinion based on no fact
whatsoever.)

- Sean