mlx4_counter_alloc
err = mlx4_counter_alloc(ibdev->dev, &counter_index,
err = mlx4_counter_alloc(dev->dev, &tmp_idx, MLX4_RES_USAGE_DRIVER);
err = mlx4_counter_alloc(dev, &idx, MLX4_RES_USAGE_DRIVER);
EXPORT_SYMBOL_GPL(mlx4_counter_alloc);
int mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx, u8 usage);