[IBAL, HW] Remove pointers from ci_umv_buf_t.

[IBAL, HW]  Remove pointers from ci_umv_buf_t.

Part of cleaning up the __ptr64 stuff properly - rather than use the TO_LONG_PTR in the ci_umv_buf_t structure, use uint64_t.

The problem with using TO_LONG_PTR in structures that are exchanged between 32-bit clients and 64-bit drivers is that care must be taken to ensure that the upper 'padding' bytes are cleared properly.

Making the field a uint64_t makes it fool proof (though it does require casting, but at least the compiler will trap errors unlike for the padding.)

Signed-off-by: Fab Tillier <ftillier@microsoft.com>
git-svn-id: svn://openib.tc.cornell.edu/gen1/trunk@1384 ad392aa1-c5ef-ae45-8dd8-e69d62a5ef86