[openib-general] [PATCH for-2.6.21] IPoIB/cm: improve small message bandwidth

[Roland Dreier]

Thanks, queued for 2.6.21.  With this patch I see small-packet latency
down almost all the way back to what datagram mode gives -- on a pair
of fast woodcrest systems I see latencies for netpipe tcp 1 byte
messages like

  datagram     13.xx
  original CM  17.xx
  patched CM   14.xx

so there is still a measurable difference but it is much less now.

 - R.