[dpdk-dev] [PATCH 1/2] app/testpmd: add custom topology command

[Wisam Monther]

Hey Kevin,

What if I have 10 ports and want all 9 ports to forward packets to port 0, this cannot done in paired.
But with this topo the user can overwrite the topo.
E.g:
- Set custom-topo 1 0
Will make those paired and those two as active only.

- set custom-topo 2 0
Will make those two as paired, but still port one will forward packets to 0.
And the active ports will be 3 ports (0,1,2)
And so on...
With this topo you can create your own topo. (Mixed between all topos or even non-pattern topo for any usage)
In my case its needed for representors and virtio.

Any traffic coming from representors/vhost (from VM) need to be forwarded from PF/phy port to the wire.

This new topo is useful for such cases.

BRs,
Wisam jaddo