[openib-general] [PATCH RFC 0 of 5] QoS support

[Michael S. Tsirkin]

The following (lightly tested) RFC patch series implement QoS support
according to the proposed LWG2 QoS Annex. This is *not* intended for
upstream merge, but I do intent to put it in OFED as a technology preview.

Some notes:
- Module parameters (off by default) were added to control QoS support.
  This is a safety measure, due to the fact QoS is not in spec yet.
  These will have to go before upstream submission.
- Once enabled, all CMA based ULPs will get Service ID set in their
  path query requests.
- To set priority, a new rdma_set_priority call was added.
  It should be possible to implement it on top of iWarp as well
  (IB QoS is explicitly defined to match DSCP semantics),
  so I think this belongs in the common header.
  For now this value is ignored on iWarp HCA.

-- 
MST