IB/mlx4: Implement FMRs

Implement FMRs for mlx4.  This is an adaptation of code from mthca.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index d9fc822..d8287d9 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -607,6 +607,11 @@
 	ibdev->ib_dev.detach_mcast	= mlx4_ib_mcg_detach;
 	ibdev->ib_dev.process_mad	= mlx4_ib_process_mad;
 
+	ibdev->ib_dev.alloc_fmr		= mlx4_ib_fmr_alloc;
+	ibdev->ib_dev.map_phys_fmr	= mlx4_ib_map_phys_fmr;
+	ibdev->ib_dev.unmap_fmr		= mlx4_ib_unmap_fmr;
+	ibdev->ib_dev.dealloc_fmr	= mlx4_ib_fmr_dealloc;
+
 	if (init_node_data(ibdev))
 		goto err_map;