[openib-general] [PATCH v2 1/7] IB/core - Add DMA mapping functions to allow device drivers to interpose

[Roland Dreier]

 > I don't think this is impossible to implement.  I just wanted
 > to avoid the work unless you and others thought it was really
 > worth it given the reality that we already have a large
 > test matrix of platforms, distros, and kernel versions and
 > it probably won't get much testing.  It is possible that
 > at some point 32-bit kernels will become a priority
 > but I don't know when that might happen.

So you think you could do the ib_dma_xxx stuff for ipath without
affecting anything outside of ipath?  (Assuming this is merged of course)
What would be the rough outline of how that would work?