IB/mlx5: Introduce and use mlx5_core_is_vf()

Instead of deciding a given device is virtual function or
not based on a device is PF or not, use already defined
MLX5_COREDEV_VF by introducing an helper API mlx5_core_is_vf().

This enables to clearly identify PF, VF and non virtual functions.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

drivers/infiniband/hw/mlx5/main.c

@@ -1031,7 +1031,7 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
 	if (MLX5_CAP_GEN(mdev, cd))
 		props->device_cap_flags |= IB_DEVICE_CROSS_CHANNEL;
 
-	if (!mlx5_core_is_pf(mdev))
+	if (mlx5_core_is_vf(mdev))
 		props->device_cap_flags |= IB_DEVICE_VIRTUAL_FUNCTION;
 
 	if (mlx5_ib_port_link_layer(ibdev, 1) ==

include/linux/mlx5/driver.h

@@ -1121,6 +1121,11 @@ static inline bool mlx5_core_is_pf(const struct mlx5_core_dev *dev)
 	return dev->coredev_type == MLX5_COREDEV_PF;
 }
 
+static inline bool mlx5_core_is_vf(const struct mlx5_core_dev *dev)
+{
+	return dev->coredev_type == MLX5_COREDEV_VF;
+}
+
 static inline bool mlx5_core_is_ecpf(struct mlx5_core_dev *dev)
 {
 	return dev->caps.embedded_cpu;