On Fri, 12 Jun 2026 22:59:12 +0200 Nicolai Buchwitz wrote:

Tested on Raspberry Pi CM4 (BCM2711):
  - Ovidiu's reproducer (iperf3 -u -b0 -P16 -t60) no longer trips
    NETDEV_WATCHDOG.
  - UDP sustains 956 Mbit/s line rate over 60 s with 0 datagrams
    lost (0/4952890).
  - Single-stream TCP throughput unchanged at 943 Mbit/s.

Of course it has no impact on a single TCP stream test, since TCP
stream can only use one queue. If anything it should help.
The testing here is not very convincing. At least install a realistic
qdisc (fq/fq_codel/cake) and run multi-stream test with multiple cores?
What's the CPU idle delta in such a test?

The reason for this change is not coming thru from the submission.
Ovidiu's patch makes much more intuitive sense. I'll apply that,
please rebase.