Commits on Jul 18, 2023

1. net-test: packetdrill: Fix tcpi_snd_cwnd in cwnd-moderation-ecn-enter… …

   …-cwr-no-moderation-700.pkt
   
   Linux Kernel commit 7e901ee7b6ab "tcp: avoid slow start during fast
   recovery on new losses", changes the behavior of the test. In
   net/ipv4/tcp_input.c function tcp_cwnd_reduction() with added
   variable newly_lost we end up in the following else branch:
   else if (flag & FLAG_SND_UNA_ADVANCED && !newly_lost).
   Now sndcnt = sndcnt = min_t(int, delta, max_t(int, tp->prr_delivered
   - tp->prr_out, newly_acked_sacked) + 1) = 2.
   
   Change the asserted value of tcpi_snd_cwnd from 4 to 5, to match the
   new kernel behavior.
   
   Signed-off-by: Gregory Bell <[email protected]>
   Reviewed-by: Radu Rendec <[email protected]>
   Change-Id: I7edcc4aae4f161b83ce174ce7e89c2b14fe2bac0

   

   Gbell26 committed Jul 18, 2023
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