mptcp: pm: reduce entries iterations on connect

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__mptcp_subflow_connect() is currently called from the path-managers,
which have all the required information to create subflows. No need to
call the PM again to re-iterate over the list of entries with RCU lock
to get more info.

Instead, it is possible to pass a mptcp_pm_addr_entry structure, instead
of a mptcp_addr_info one. The former contains the ifindex and the flags
that are required when creating the new subflow.

This is a partial revert of commit ee285257a9 ("mptcp: drop flags and
ifindex arguments").

While at it, the local ID can also be set if it is known and 0, to avoid
having to set it in the 'rebuild_header' hook, which will cause a new
iteration of the endpoint entries.

Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20240902-net-next-mptcp-mib-mpjtx-misc-v1-2-d3e0f3773b90@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

This commit is contained in:

Matthieu Baerts (NGI0) 2024-09-02 12:45:53 +02:00 • committed by Jakub Kicinski

parent 7bcf4d8022

commit b83fbca1b4

5 changed files with 62 additions and 100 deletions

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11

net/mptcp/pm.c

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66

net/mptcp/pm_netlink.c

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40

net/mptcp/pm_userspace.c

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16

net/mptcp/protocol.h

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29

net/mptcp/subflow.c

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