RDMA/mlx5: Enable attaching packet reformat action to steering flows

Any matching rules will be mutated based on the packet reformat context
which is attached to that given flow rule.

Signed-off-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/hw/mlx5/main.c

@@ -2486,6 +2486,14 @@ static int parse_flow_flow_action(const union ib_flow_spec *ib_spec,
 			action->action |= MLX5_FLOW_CONTEXT_ACTION_DECAP;
 			return 0;
 		}
+		if (maction->flow_action_raw.sub_type ==
+		    MLX5_IB_FLOW_ACTION_PACKET_REFORMAT) {
+			action->action |=
+				MLX5_FLOW_CONTEXT_ACTION_PACKET_REFORMAT;
+			action->reformat_id =
+				maction->flow_action_raw.action_id;
+			return 0;
+		}
 		/* fall through */
 	default:
 		return -EOPNOTSUPP;