This series includes several changes to the MPTCP RX path. The main
goals are improving the RX performances, and increase the long term
maintainability.
Some changes reflects recent(ish) improvements introduced in the TCP
stack: patch 1, 2 and 3 are the MPTCP counter part of SKB deferral free
and auto-tuning improvements. Note that patch 3 could possibly fix
additional issues, and overall such patch should protect from similar
issues to arise in the future.
Patches 4-7 are aimed at introducing the socket backlog usage which will
be done in a later series to process the packets received by the
different subflows while the msk socket is owned.
Patch 8 is not related to the RX path, but it contains additional tests
for new features recently introduced in net-next.
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
---
Notes:
- Sorry for sending this series that late, we had quite a few patches
to upstream during this cycle. This is the last batch, and it has
been heavily tested the last 2 weeks.
- If there are some issues with some patches, but not with 1-3, it
would be nice, if possible, if these 3 first patches can be accepted,
to reduce the recently introduced gap with TCP.
- Patches can be grouped like this if needed: 1-3, 4-5, 6-7, 8. 6-7 are
preparing the ground for future on-going work, they can be dropped if
there are issues with them.
---
Matthieu Baerts (NGI0) (1):
selftests: mptcp: join: validate new laminar endp
Paolo Abeni (7):
mptcp: leverage skb deferral free
tcp: make tcp_rcvbuf_grow() accessible to mptcp code
mptcp: rcvbuf auto-tuning improvement
mptcp: introduce the mptcp_init_skb helper
mptcp: remove unneeded mptcp_move_skb()
mptcp: factor out a basic skb coalesce helper
mptcp: minor move_skbs_to_msk() cleanup
include/net/tcp.h | 1 +
net/ipv4/tcp_input.c | 2 +-
net/mptcp/protocol.c | 187 ++++++++++++------------
net/mptcp/protocol.h | 4 +-
tools/testing/selftests/net/mptcp/mptcp_join.sh | 69 +++++++++
tools/testing/selftests/net/mptcp/pm_nl_ctl.c | 9 ++
6 files changed, 177 insertions(+), 95 deletions(-)
---
base-commit: 1493c18fe8696bfc758a97130a485fc4e08387f5
change-id: 20250927-net-next-mptcp-rcv-path-imp-192d8c24c9c7
Best regards,
--
Matthieu Baerts (NGI0) <matttbe@kernel.org>