[ofa-general] [PATCH/RFC] Add support for "send with invalidate" to libibverbs

[Roland Dreier]

 > Since send with immediate and send with invalidate are mutually
 > exclusive, wouldn't it make sense to use a union for both the immediate
 > value and the invalidated rkey?

maybe although that would be hard to do in libibverbs without changing
the API.  I'm not a big fan of anonymous unions and I don't see any
other good way to do it.

 > Also it seems like this commit touches code in both ib core and in hw
 > drivers.

Yes, I explained why in the changelog.

 - R.