Re: net: dsa: lantiq_gswip: getting the first selftests to pass

Florian Fainelli
2022-07-28T22:32:28Z

On 7/27/22 17:02, Vladimir Oltean wrote:
> On Wed, Jul 27, 2022 at 02:07:51PM -0700, Florian Fainelli wrote:
>> Since I am in the process of re-designing my test rack at home with
>> DSA devices, how do you run the selftests out of curiosity? Is there a
>> nice diagram that explains how to get a physical connection set-up?
>>
>> I used to have between 2 and 4 Ethernet controllers dedicated to each
>> port of the switch of the DUT so I could run
>> bridge/standalone/bandwidth testing but I feel like this is a tad
>> extreme and am cutting down on the number of Ethernet ports so I can
>> put NVMe drives in the machine instead.
>
> tools/testing/selftests/net/forwarding/README
>
> br0
> +
> vrf-h1 | vrf-h2
> + +---+----+ +
> | | | |
> 192.0.2.1/24 + + + + 192.0.2.2/24
> swp1 swp2 swp3 swp4
> + + + +
> | | | |
> +--------+ +--------+
>
> Most of the tests assume these 4 ports, otherwise the topology is
> mentioned in a drawing for that particular selftest.
>
> The names used by the tests are actually $h1 and $h2 for the host ports
> (extreme left and extreme right) - these terminate traffic - and $swp1
> and $swp2 (mid left and mid right) - these forward traffic. In the
> drawing from the README, I suppose the names "swp1 ... swp4" were used
> to illustrate that you can use switch net devices as host ports, and
> also as forwarding ports.

Thanks! I will get to that later this week.
--
Florian