dts: add multicast set function to shell

[Luca Vizzarro]

Hi Dean, thank you for your work.

On 08/07/2024 20:08, Dean Marx wrote:
> +    def set_multicast_all(self, on: bool, verify: bool = True):
> +        """Turns multicast mode on/off for the specified port.
> +
> +        Args:
> +            on: If :data:`True`, turns multicast mode on, otherwise turns off.
> +            verify: If :data:`True` an additional command will be sent to verify
> +            that multicast mode is properly set. Defaults to :data:`True`.
> +
> +        Raises:
> +            InteractiveCommandExecutionError: If `verify` is :data:`True` and multicast
> +                mode is not properly set.
> +        """
> +        multicast_output = self.send_command(f"set allmulti all {'on' if on else 'off'}")
> +        if verify:
> +            stats0 = self.show_port_info(port_id=0)
> +            stats1 = self.show_port_info(port_id=1)
This assumes that we have port 0 and 1, but *technically* we shouldn't 
be making assumptions about the environment in the framework. I'd rather 
use show_port_info_all and sample from there what's available.
> +            if on ^ (stats0.is_allmulticast_mode_enabled and stats1.is_allmulticast_mode_enabled):
> +                self._logger.debug(
> +                    f"Failed to set multicast mode on all ports.: \n{multicast_output}"
> +                )
> +                raise InteractiveCommandExecutionError(
> +                    "Testpmd failed to set multicast mode on all ports."
> +                )