Add dynamic tracing functionality to debug connection
management issues.

Link: https://lore.kernel.org/r/20210602205138.889-14-shiraz.saleem@intel.comSigned-off-by: "Michael J. Ruhl" <michael.j.ruhl@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>