[ofa-general] enabling invalidate operations in libibverbs API

[Eli Cohen]

On Mon, 2008-06-09 at 13:48 -0700, Roland Dreier wrote:
> I'm thinking about how to add support for the various invalidate
> operations to libibverbs (ie send with invalidate, RDMA read with inv,
> local inv, and receive completions with an invalidated key in them).
Aren't these invalidate operations valid only for physical memory
regions? If that is the case, and since we can't have physical memory
regions in userspace, I don't see why we need this in userspace.

I also don't think IB spec defines RDMA READ with invalidate operations.