On Wed, Feb 28, 2018 at 5:40 PM Eric Dumazet [off-list ref] wrote:

Playing with r8152 USB 1Gbit NIC, on both USB2 and USB3 slots,
I found that BBR was performing poorly, because of TSO being limited to

16KB

This patch series makes sure BBR is not under estimating number
of packets that are needed to fill the pipe when a device has
suboptimal TSO limits.

Eric Dumazet (2):
   tcp_bbr: better deal with suboptimal GSO (II)
   tcp_bbr: remove bbr->tso_segs_goal

Acked-by: Soheil Hassas Yeganeh <redacted>

Thank you, Eric!

  include/net/tcp.h     |  6 ++----
  net/ipv4/tcp_bbr.c    | 33 ++++++++++++++++-----------------
  net/ipv4/tcp_output.c | 15 ++++++++-------
  3 files changed, 26 insertions(+), 28 deletions(-)

--
2.16.2.395.g2e18187dfd-goog