[ofw] [RFC] [PATCH 0/4] winverbs: expand kernel driver framework

[Sean Hefty]

The following set of patches expand the winverbs kernel driver.  It implements
opening/closing/query a device, allocating PDs, and registering memory.  It also
handles device removal with active userspace users.  The code compiles, but is
untested.  I wanted to publish the implementation to get feedback on the
approaches taken.

I broke up the changes into 4 areas:

* The kernel verbs interface definition.
  This is the existing CI calls, but with the filter drivers calling down for
  the interface, rather than HCA drivers pushing them up.
* Changes to mthca responding to a query interface IOCTL.
* A new 'index list' component.
* The winverbs kernel implementation.

Additional details will be provided in the patches.

Signed-off-by: Sean Hefty <sean.hefty at intel.com>