[openib-general] posting send requests in RTR

[Michael S. Tsirkin]

Quoting r. Rimmer, Todd <trimmer at silverstorm.com>:
> This type of approach would completely contain the
> issue in the HCA driver rather than having CMA consumers need to worry
> about it.

So, we are moving code from some ULPs where its shared for all hardware
into low level where it needs to be re-implemented for each hardware type.

If there's some common code, let's see it used in more than one place,
then we'll move it to a utility function.

-- 
MST