Following patches introduce VDPA network driver for Mellanox Connectx6
devices. This patch provides functionality that will be used by those
patches.
Reviewed-by: Parav Pandit
Signed-off-by: Eli Cohen
Link: https://lore.kernel.org/r/20200804162048.22587-11-eli@mellanox.com
Signed-off-by: Michael S. Tsirkin