MLX4_CMD_CONFIG_DEV
.opcode = MLX4_CMD_CONFIG_DEV,
err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_CONFIG_DEV,
err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 1, MLX4_CMD_CONFIG_DEV,