netdev - [PATCH net-next 0/9] mptcp: Features and fixes for v6.7

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Message-Id: <20231023-send-net-next-20231023-2-v1-0-9dc60939d371@kernel.org>
Date: Mon, 23 Oct 2023 13:44:33 -0700
From: Mat Martineau <martineau@...nel.org>
To: Matthieu Baerts <matttbe@...nel.org>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>
Cc: netdev@...r.kernel.org, mptcp@...ts.linux.dev, 
 Mat Martineau <martineau@...nel.org>
Subject: [PATCH net-next 0/9] mptcp: Features and fixes for v6.7

Patch 1 adds a configurable timeout for the MPTCP connection when all
subflows are closed, to support break-before-make use cases.

Patch 2 is a fix for a 1-byte error in rx data counters with MPTCP
fastopen connections.

Patch 3 is a minor code cleanup.

Patches 4 & 5 add handling of rcvlowat for MPTCP sockets, with a
prerequisite patch to use a common scaling ratio between TCP and MPTCP.

Patch 6 improves efficiency of memory copying in MPTCP transmit code.

Patch 7 refactors syncing of socket options from the MPTCP socket to
its subflows.

Patches 8 & 9 help the MPTCP packet scheduler perform well by changing
the handling of notsent_lowat in subflows and how available buffer space
is calculated for MPTCP-level sends.

Signed-off-by: Mat Martineau <martineau@...nel.org>
---
Paolo Abeni (9):
      mptcp: add a new sysctl for make after break timeout
      mptcp: properly account fastopen data
      mptcp: use plain bool instead of custom binary enum
      tcp: define initial scaling factor value as a macro
      mptcp: give rcvlowat some love
      mptcp: use copy_from_iter helpers on transmit
      mptcp: consolidate sockopt synchronization
      mptcp: ignore notsent_lowat setting at the subflow level
      mptcp: refactor sndbuf auto-tuning

 Documentation/networking/mptcp-sysctl.rst | 11 +++++
 include/net/tcp.h                         | 12 +++--
 net/mptcp/ctrl.c                          | 16 ++++++
 net/mptcp/fastopen.c                      |  1 +
 net/mptcp/protocol.c                      | 69 +++++++++++++++++---------
 net/mptcp/protocol.h                      | 82 ++++++++++++++++++++++++++-----
 net/mptcp/sockopt.c                       | 65 +++++++++++++++++-------
 net/mptcp/subflow.c                       | 45 ++++++++++-------
 8 files changed, 224 insertions(+), 77 deletions(-)
---
base-commit: d6e48462e88fe7efc78b455ecde5b0ca43ec50b7
change-id: 20231023-send-net-next-20231023-2-96cfdf27b5ed

Best regards,
-- 
Mat Martineau <martineau@...nel.org>