| Message ID | 20180822214316.174161-1-yyd@google.com |
|---|---|
| Headers | show |
| Series | tcp_bbr: PROBE_RTT minor bug fixes | expand |
From: Kevin Yang <yyd@google.com> Date: Wed, 22 Aug 2018 17:43:13 -0400 > From: "Kevin(Yudong) Yang" <yyd@google.com> > > This series includes two minor bug fixes for the TCP BBR PROBE_RTT > mechanism, and one preparatory patch: > > (1) A preparatory patch to reorganize the PROBE_RTT logic by refactoring > (into its own function) the code to exit PROBE_RTT, since the next > patch will be using that code in a new context. > > (2) Fix: When BBR restarts from idle and if BBR is in PROBE_RTT mode, > BBR should check if it's time to exit PROBE_RTT. If yes, then BBR > should exit PROBE_RTT mode and restore the cwnd to its full value. > > (3) Fix: Apply the PROBE_RTT cwnd cap even if the count of fully-ACKed > packets is 0. Series applied, thank you.
From: "Kevin(Yudong) Yang" <yyd@google.com> This series includes two minor bug fixes for the TCP BBR PROBE_RTT mechanism, and one preparatory patch: (1) A preparatory patch to reorganize the PROBE_RTT logic by refactoring (into its own function) the code to exit PROBE_RTT, since the next patch will be using that code in a new context. (2) Fix: When BBR restarts from idle and if BBR is in PROBE_RTT mode, BBR should check if it's time to exit PROBE_RTT. If yes, then BBR should exit PROBE_RTT mode and restore the cwnd to its full value. (3) Fix: Apply the PROBE_RTT cwnd cap even if the count of fully-ACKed packets is 0. Kevin Yang (3): tcp_bbr: add bbr_check_probe_rtt_done() helper tcp_bbr: in restart from idle, see if we should exit PROBE_RTT tcp_bbr: apply PROBE_RTT cwnd cap even if acked==0 net/ipv4/tcp_bbr.c | 42 ++++++++++++++++++++++++------------------ 1 file changed, 24 insertions(+), 18 deletions(-)