netdev - [PATCH net-next 0/2] net/sched: implement L4S style ce_threshold

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Message-Id: <20211014175918.60188-1-eric.dumazet@gmail.com>
Date:   Thu, 14 Oct 2021 10:59:16 -0700
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     netdev <netdev@...r.kernel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Eric Dumazet <eric.dumazet@...il.com>
Subject: [PATCH net-next 0/2] net/sched: implement L4S style ce_threshold_ect1 marking

From: Eric Dumazet <edumazet@...gle.com>

As suggested by Ingemar Johansson, Neal Cardwell, and others, fq_codel can be used
for Low Latency, Low Loss, Scalable Throughput (L4S) with a small change.

In ce_threshold_ect1 mode, only ECT(1) packets can be marked to CE if
their sojourn time is above the threshold.

Eric Dumazet (2):
  net: add skb_get_dsfield() helper
  fq_codel: implement L4S style ce_threshold_ect1 marking

 include/net/codel.h            |  2 ++
 include/net/codel_impl.h       | 18 +++++++++++++++---
 include/net/inet_ecn.h         | 17 +++++++++++++++++
 include/uapi/linux/pkt_sched.h |  1 +
 net/mac80211/sta_info.c        |  1 +
 net/sched/sch_fq_codel.c       | 15 +++++++++++----
 6 files changed, 47 insertions(+), 7 deletions(-)

-- 
2.33.0.1079.g6e70778dc9-goog