On Thu, Nov 16, 2023 at 9:34 PM Willem de Bruijn
<willemdebruijn.kernel@xxxxxxxxx> wrote:
>
> From: Willem de Bruijn <willemb@xxxxxxxxxx>
>
> Commit 29f834aa326e ("net_sched: sch_fq: add 3 bands and WRR
> scheduling") introduces multiple traffic bands, and per-band maximum
> packet count.
>
> Per-band limits ensures that packets in one class cannot fill the
> entire qdisc and so cause DoS to the traffic in the other classes.
>
> Verify this behavior:
> 1. set the limit to 10 per band
> 2. send 20 pkts on band A: verify that 10 are queued, 10 dropped
> 3. send 20 pkts on band A: verify that 0 are queued, 20 dropped
> 4. send 20 pkts on band B: verify that 10 are queued, 10 dropped
>
>
...
> Signed-off-by: Willem de Bruijn <willemb@xxxxxxxxxx>
> ---
Thanks Willem for upstreaming this test.
Reviewed-by: Eric Dumazet <edumazet@xxxxxxxxxx>
