Commits on May 26, 2016

1. btl/openib: fix XRC WQE calculation …

   Before dynamic add_procs support was committed to master we called
   add_procs with every proc in the job. The XRC code in the openib btl
   was taking advantage of this and setting the number of work queue
   entries (WQE) based on all the procs on a remote node. Since that is
   no longer the case we can not simply increment the sd_wqe field on the
   queue pair. To fix the issue a new field has been added to the xrc
   queue pair structure to keep track of how many wqes there are total on
   the queue pair. If a new endpoint is added that increases the number
   of wqes and the xrc queue pair is already connected the code will
   attempt to modify the number of wqes on the queue pair. A failure is
   ignored because all that will happen is the number of active send work
   requests on an XRC queue pair will be more limited.
   
   Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>

   

   hjelmn committed May 26, 2016
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