[ofa-general] Can you clarify my 'RNR NAK timer' understanding ?

[Tang, Changqing]

If I set RNR NAK timer to the biggest value (00000, 655.38 ms), when the
HCA recevies 
a message and no receive WR outstanding,  it will wait 655.38 ms, then
it sends a RNR
NAK back.

If I post a receive WR during this waiting time, then the message will
be received, and
RNR NAK won't be sent.

Am I right ?   What is the side effect if I set RNR NAK timer a big
timer ?


Thanks
--CQ