tree 9a3f3314afd5c74cad36774b0df30eafe16c6cfd
parent 8cdd312cfed706b067d7ea952603e28cc33c40cc
author Haggai Eran <haggaie@mellanox.com> 1418310261 +0200
committer Roland Dreier <roland@purestorage.com> 1418696342 -0800

IB/mlx5: Changes in memory region creation to support on-demand paging

This patch wraps together several changes needed for on-demand paging support
in the mlx5_ib_populate_pas function, and when registering memory regions.

* Instead of accepting a UMR bit telling the function to enable all
  access flags, the function now accepts the access flags themselves.
* For on-demand paging memory regions, fill the memory tables from the
  correct list, and enable/disable the access flags per-page according
  to whether the page is present.
* A new bit is set to enable writing of access flags when using the
  firmware create_mkey command.
* Disable contig pages when on-demand paging is enabled.

In addition the patch changes the UMR code to use PTR_ALIGN instead of
our own macro.

Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>