RDMA/mlx5: Return all configured create flags through query QP

The "flags" field in struct mlx5_ib_qp contains all UAPI flags
configured at the create QP stage. Return all the data as is
without masking.

Link: https://lore.kernel.org/r/20200427154636.381474-18-leon@kernel.orgReviewed-by: NMaor Gottlieb <maorg@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/hw/mlx5/mlx5_ib.h

@@ -443,6 +443,7 @@ struct mlx5_ib_qp {
 	/* serialize qp state modifications
 	 */
 	struct mutex		mutex;
+	/* cached variant of create_flags from struct ib_qp_init_attr */
 	u32			flags;
 	u8			port;
 	u8			state;

drivers/infiniband/hw/mlx5/qp.c

@@ -5878,18 +5878,7 @@ int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
 
 	qp_init_attr->cap	     = qp_attr->cap;
 
-	qp_init_attr->create_flags = 0;
-	if (qp->flags & IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK)
-		qp_init_attr->create_flags |= IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK;
-
-	if (qp->flags & IB_QP_CREATE_CROSS_CHANNEL)
-		qp_init_attr->create_flags |= IB_QP_CREATE_CROSS_CHANNEL;
-	if (qp->flags & IB_QP_CREATE_MANAGED_SEND)
-		qp_init_attr->create_flags |= IB_QP_CREATE_MANAGED_SEND;
-	if (qp->flags & IB_QP_CREATE_MANAGED_RECV)
-		qp_init_attr->create_flags |= IB_QP_CREATE_MANAGED_RECV;
-	if (qp->flags & MLX5_IB_QP_CREATE_SQPN_QP1)
-		qp_init_attr->create_flags |= MLX5_IB_QP_CREATE_SQPN_QP1;
+	qp_init_attr->create_flags = qp->flags;
 
 	qp_init_attr->sq_sig_type = qp->sq_signal_bits & MLX5_WQE_CTRL_CQ_UPDATE ?
 		IB_SIGNAL_ALL_WR : IB_SIGNAL_REQ_WR;