[PATCH net v2 0/4] Improve stability of big_tcp_tunnels.sh selftest

From: Alice Mikityanska <redacted>

This series addresses flakiness of big_tcp_tunnels.sh discussed at:

https://lore.kernel.org/netdev/349c582c-73e3-468c-91cd-ad6cc3562700@app.fastmail.com/ (local)

Lower the thresholds to avoid failures like this (number of packets
below the threshold):

https://netdev-ctrl.bots.linux.dev/logview.html?f=/logs/vmksft/net-dbg/results/754376/28-big-tcp-tunnels-sh/stdout

Tweak tcp_min_tso_segs and initcwnd to avoid failures like this (BIG TCP
doesn't kick in in slow configurations):

https://netdev-ctrl.bots.linux.dev/logview.html?f=/logs/vmksft/net-dbg/results/751124/21-big-tcp-tunnels-sh/stdout

v2 changes: Use $KSFT_MACHINE_SLOW instead of probing kernel config.

v1: https://lore.kernel.org/netdev/20260814194124.3102581-1-alice.kernel@fastmail.im/ (local)

Alice Mikityanska (4):
  selftests: net: Wait for netserver to launch
  selftests: net: Lower threshold on debug kernels for
    big_tcp_tunnels.sh
  selftests: net: Lower threshold with csum offload off in
    big_tcp_tunnels.sh
  selftests: net: Fix slow configurations in big_tcp_tunnels.sh

 .../testing/selftests/net/big_tcp_tunnels.sh  | 38 +++++++++++++++++--
 1 file changed, 34 insertions(+), 4 deletions(-)

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2.55.0