netdev - Re: [PATCH net-next 0/2] tcp

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Message-ID: <CACSApvZGDh3n7rToZRf1AOH3pd-WfA-bN4pULzOcTr8k5fLjpQ@mail.gmail.com>
Date:   Wed, 28 Feb 2018 22:42:04 +0000
From:   Soheil Hassas Yeganeh <soheil.kdev@...il.com>
To:     Eric Dumazet <edumazet@...gle.com>
Cc:     David Miller <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>,
        Neal Cardwell <ncardwell@...gle.com>,
        Yuchung Cheng <ycheng@...gle.com>,
        Eric Dumazet <eric.dumazet@...il.com>
Subject: Re: [PATCH net-next 0/2] tcp_bbr: more GSO work

On Wed, Feb 28, 2018 at 5:40 PM Eric Dumazet <edumazet@...gle.com> 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 <soheil@...gle.com>

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