[PATCH] dts: add l2fwd test suite

[Patrick Robb]

Reviewed-by: Patrick Robb <probb at iol.unh.edu>
Tested-by: Patrick Robb <probb at iol.unh.edu>

Ran on a Broadcom 57414 2x25G NIC on an Intel x86 server.

I'll follow up with a review on the pktgen and testpmd changes series
as obviously we want to move that to next-dts. Thanks!

On Tue, Aug 6, 2024 at 8:53 AM Luca Vizzarro <luca.vizzarro at arm.com> wrote:
> +    def test_l2fwd_integrity(self) -> None:
> +        """Test the L2 forwarding integrity.
> +
> +        Test:
> +            Configure a testpmd shell with a different numbers of queues per run. Start up L2
> +            forwarding, send random packets from the TG and verify they were all received back.
> +        """
> +        queues = [1, 2, 4, 8]

The only question I had was whether we need a show port info
capability check to verify the max queues per port is at least 8, but
I think that 8 is so low that we will not realistically run into this
problem, after a quick 60 second check on a couple NICs.