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Message-Id: <20231222-upstream-net-next-20231221-mptcp-currestab-v1-0-c1eb73d6b2b2@kernel.org>
Date: Fri, 22 Dec 2023 13:47:21 +0100
From: Matthieu Baerts <matttbe@...nel.org>
To: mptcp@...ts.linux.dev, Mat Martineau <martineau@...nel.org>,
"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Shuah Khan <shuah@...nel.org>, Geliang Tang <geliang.tang@...ux.dev>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-kselftest@...r.kernel.org, Matthieu Baerts <matttbe@...nel.org>
Subject: [PATCH net-next 0/4] mptcp: add CurrEstab MIB counter
This MIB counter is similar to the one of TCP -- CurrEstab -- available
in /proc/net/snmp. This is useful to quickly list the number of MPTCP
connections without having to iterate over all of them.
Patch 1 prepares its support by adding new helper functions:
- MPTCP_DEC_STATS(): similar to MPTCP_INC_STATS(), but this time to
decrement a counter.
- mptcp_set_state(): similar to tcp_set_state(), to change the state of
an MPTCP socket, and to inc/decrement the new counter when needed.
Patch 2 uses mptcp_set_state() instead of directly calling
inet_sk_state_store() to change the state of MPTCP sockets.
Patch 3 and 4 validate the new feature in MPTCP "join" and "diag"
selftests.
Signed-off-by: Matthieu Baerts <matttbe@...nel.org>
---
Geliang Tang (4):
mptcp: add CurrEstab MIB counter support
mptcp: use mptcp_set_state
selftests: mptcp: join: check CURRESTAB counters
selftests: mptcp: diag: check CURRESTAB counters
net/mptcp/mib.c | 1 +
net/mptcp/mib.h | 8 ++++
net/mptcp/pm_netlink.c | 5 +++
net/mptcp/protocol.c | 56 ++++++++++++++++---------
net/mptcp/protocol.h | 1 +
net/mptcp/subflow.c | 2 +-
tools/testing/selftests/net/mptcp/diag.sh | 17 +++++++-
tools/testing/selftests/net/mptcp/mptcp_join.sh | 46 +++++++++++++++++---
8 files changed, 110 insertions(+), 26 deletions(-)
---
base-commit: 56794e5358542b7c652f202946e53bfd2373b5e0
change-id: 20231221-upstream-net-next-20231221-mptcp-currestab-5a2867b4020b
Best regards,
--
Matthieu Baerts <matttbe@...nel.org>
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