[openib-general] Plans for libibverbs 1.0, 1.1 and beyond

[Roland Dreier]

    Gil> Roland, I believe we should add support for a resize WQ
    Gil> command (as a part of modify QP) to enable changing the WQ
    Gil> size.  On a very large scale cluster, with many operating
    Gil> QPs, the work queue memory consumption might be
    Gil> expansive. Thus the MPI implementation should tradeoff for
    Gil> pipelining requests vs. WQ memory consumption. The resize WQ
    Gil> will allow on-demand adaptive WQ setting instead of static
    Gil> allocation of the memory resource, which I believe can
    Gil> increase performance and save memory at the same time.

Does Mellanox HW support resizing a WQ after a QP is created?  If so
would you be willing to contribute an implementation?

Thanks,
  Roland