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From: Paolo Abeni <pabeni@redhat.com>
To: mptcp@lists.linux.dev
Subject: [PATCH v2 mptcp-next 0/8] mptcp: refactor active backup
Date: Tue, 13 Jul 2021 23:13:30 +0200	[thread overview]
Message-ID: <cover.1626210682.git.pabeni@redhat.com> (raw)

This series addresses a bunch of issues somewhat related to active
backup handling. The most visible functial issue addressed here is:

https://github.com/multipath-tcp/mptcp_net-next/issues/191

This series also add some specific self-tests, to cover both
active-backup switch-over and proper usage of backup link.

A new netns parameter is introduced:

stale_loss_cnt - the max amount of mptcp rtx timeouts with no progresses
        and outstanding data over a single subflow needed to declare
        such subflow 'stale': no more data will be queue until some ack
        is observed.

Changes from v1:
 - stale_loss_cnt is now configurable via sysctl
 - addressed buglet noted by Mat on v1
 - fixed timeout update issues in patches 1-2
 - fixed splat in __mptcp_clean_una() on reinection
   - the new self-tests are now less unstable

Paolo Abeni (8):
  mptcp: more accurate timeout
  mptcp: less aggressive retransmission stragegy
  mptcp: handle pending data on closed subflow
  mptcp: cleanup sysctl data and helpers
  mptcp: faster active backup recovery
  mptcp: add mibs for stale subflows processing
  mptcp: backup flag from incoming MPJ ack option
  selftests: mptcp: add testcase for active-back

 Documentation/networking/mptcp-sysctl.rst     |  12 +
 net/mptcp/ctrl.c                              |  26 ++-
 net/mptcp/mib.c                               |   2 +
 net/mptcp/mib.h                               |   2 +
 net/mptcp/options.c                           |   8 +-
 net/mptcp/pm.c                                |  21 ++
 net/mptcp/pm_netlink.c                        |  37 +++
 net/mptcp/protocol.c                          | 187 +++++++++++----
 net/mptcp/protocol.h                          |  31 ++-
 net/mptcp/subflow.c                           |   6 +-
 .../testing/selftests/net/mptcp/mptcp_join.sh | 215 +++++++++++++++---
 11 files changed, 459 insertions(+), 88 deletions(-)

-- 
2.26.3


             reply	other threads:[~2021-07-13 21:13 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-13 21:13 Paolo Abeni [this message]
2021-07-13 21:13 ` [PATCH v2 mptcp-next 1/8] mptcp: more accurate timeout Paolo Abeni
2021-07-13 21:13 ` [PATCH v2 mptcp-next 2/8] mptcp: less aggressive retransmission stragegy Paolo Abeni
2021-07-13 21:13 ` [PATCH v2 mptcp-next 3/8] mptcp: handle pending data on closed subflow Paolo Abeni
2021-07-13 21:13 ` [PATCH v2 mptcp-next 4/8] mptcp: cleanup sysctl data and helpers Paolo Abeni
2021-07-13 21:13 ` [PATCH v2 mptcp-next 5/8] mptcp: faster active backup recovery Paolo Abeni
2021-07-14  0:46   ` kernel test robot
2021-07-14  8:36   ` Dan Carpenter
2021-07-14 10:15     ` Matthieu Baerts
2021-07-13 21:13 ` [PATCH v2 mptcp-next 6/8] mptcp: add mibs for stale subflows processing Paolo Abeni
2021-07-13 21:13 ` [PATCH v2 mptcp-next 7/8] mptcp: backup flag from incoming MPJ ack option Paolo Abeni
2021-07-13 21:13 ` [PATCH v2 mptcp-next 8/8] selftests: mptcp: add testcase for active-back Paolo Abeni
2021-07-15  1:20 ` [PATCH v2 mptcp-next 0/8] mptcp: refactor active backup Mat Martineau
2021-07-16 10:01 ` Matthieu Baerts

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