From: Matthieu Baerts <matthieu.baerts@tessares.net>
To: Paolo Abeni <pabeni@redhat.com>,
Kishen Maloor <kishen.maloor@intel.com>,
mptcp@lists.linux.dev
Subject: Re: [PATCH mptcp-next v2 08/21] mptcp: attempt to add listening sockets for announced addrs
Date: Fri, 14 Jan 2022 18:47:57 +0100 [thread overview]
Message-ID: <0ea75530-7741-b00b-19ad-9b87bdd1a4b8@tessares.net> (raw)
In-Reply-To: <c187fa2042e25cdc85aff2dd6687781b2511d86a.camel@redhat.com>
Hi Kishen, Paolo,
On 14/01/2022 16:54, Paolo Abeni wrote:
> I really think we want at list a configuration option, off by default,
> for this feature. Some specific self-test would be a plus.
>
> It will help reviewing, splitting this series in at least 2 chunks:
> * pre-reqs up to ~this patch
> * user-space PM specific stuff
Good idea, I think it will help indeed. And it will be required when we
will send these patches to netdev.
For me, it makes sense to have more features only for the userspace PM
and of course more flexibility. But we still need to make sure the
in-kernel PM can be controlled to avoid some behaviours. For example,
when sending the command to emit an ADD_ADDR, a parameter could be used
to (try to) create a listening socket as well.
I think an in-kernel PM makes sense for a typical server mainly having
to send ADD_ADDRs and accept subflows. Having a userspace PM daemon can
be costly for such "basic task".
Also a server could also send an ADD_ADDR for an IP that it doesn't
directly "own" and we might save some resources by not creating or
trying to create listening sockets. We could also have a new flag with
'ip mptcp' to create listening sockets for the IP we want to "signal".
I mean: even if it is now easier to create listening sockets, we might
not want to do it all the time.
Cheers,
Matt
--
Tessares | Belgium | Hybrid Access Solutions
www.tessares.net
next prev parent reply other threads:[~2022-01-14 17:48 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-12 22:15 [PATCH mptcp-next v2 00/21] mptcp: support userspace path management Kishen Maloor
2022-01-12 22:15 ` [PATCH mptcp-next v2 01/21] mptcp: do not restrict subflows with non-kernel PMs Kishen Maloor
2022-01-12 22:15 ` [PATCH mptcp-next v2 02/21] mptcp: store remote id from MP_JOIN SYN/ACK in local ctx Kishen Maloor
2022-01-12 22:15 ` [PATCH mptcp-next v2 03/21] mptcp: reflect remote port (not 0) in ANNOUNCED events Kishen Maloor
2022-01-12 22:15 ` [PATCH mptcp-next v2 04/21] mptcp: establish subflows from either end of connection Kishen Maloor
2022-01-14 22:43 ` Mat Martineau
2022-01-17 8:59 ` Paolo Abeni
2022-01-19 1:26 ` Kishen Maloor
2022-01-19 12:01 ` Paolo Abeni
2022-01-19 17:59 ` Kishen Maloor
2022-01-19 18:59 ` Mat Martineau
2022-01-12 22:15 ` [PATCH mptcp-next v2 05/21] mptcp: netlink: store per namespace list of refcounted listen socks Kishen Maloor
2022-01-12 22:15 ` [PATCH mptcp-next v2 06/21] mptcp: netlink: store lsk ref in mptcp_pm_addr_entry Kishen Maloor
2022-01-12 22:15 ` [PATCH mptcp-next v2 07/21] mptcp: netlink: process IPv6 addrs in creating listening sockets Kishen Maloor
2022-01-14 15:27 ` Paolo Abeni
2022-01-14 22:09 ` Mat Martineau
2022-01-19 1:25 ` Kishen Maloor
2022-01-19 19:14 ` Mat Martineau
2022-01-12 22:15 ` [PATCH mptcp-next v2 08/21] mptcp: attempt to add listening sockets for announced addrs Kishen Maloor
2022-01-14 15:54 ` Paolo Abeni
2022-01-14 17:47 ` Matthieu Baerts [this message]
2022-01-14 22:26 ` Mat Martineau
2022-01-19 1:20 ` Kishen Maloor
2022-01-12 22:15 ` [PATCH mptcp-next v2 09/21] mptcp: allow ADD_ADDR reissuance by userspace PMs Kishen Maloor
2022-01-12 22:15 ` [PATCH mptcp-next v2 10/21] mptcp: handle local addrs announced " Kishen Maloor
2022-01-14 17:11 ` Paolo Abeni
2022-01-19 1:24 ` Kishen Maloor
2022-01-19 19:20 ` Mat Martineau
2022-01-19 20:27 ` Kishen Maloor
2022-01-19 20:44 ` Mat Martineau
2022-01-19 21:30 ` Kishen Maloor
2022-01-12 22:15 ` [PATCH mptcp-next v2 11/21] mptcp: read attributes of addr entries managed " Kishen Maloor
2022-01-12 22:15 ` [PATCH mptcp-next v2 12/21] mptcp: netlink: split mptcp_pm_parse_addr into two functions Kishen Maloor
2022-01-12 22:15 ` [PATCH mptcp-next v2 13/21] mptcp: netlink: Add MPTCP_PM_CMD_ANNOUNCE Kishen Maloor
2022-01-14 17:04 ` Paolo Abeni
2022-01-19 1:21 ` Kishen Maloor
2022-01-12 22:15 ` [PATCH mptcp-next v2 14/21] mptcp: selftests: support MPTCP_PM_CMD_ANNOUNCE Kishen Maloor
2022-01-12 22:15 ` [PATCH mptcp-next v2 15/21] mptcp: netlink: Add MPTCP_PM_CMD_REMOVE Kishen Maloor
2022-01-12 22:15 ` [PATCH mptcp-next v2 16/21] mptcp: selftests: support MPTCP_PM_CMD_REMOVE Kishen Maloor
2022-01-12 22:15 ` [PATCH mptcp-next v2 17/21] mptcp: netlink: allow userspace-driven subflow establishment Kishen Maloor
2022-01-12 22:15 ` [PATCH mptcp-next v2 18/21] mptcp: selftests: support MPTCP_PM_CMD_SUBFLOW_CREATE Kishen Maloor
2022-01-12 22:15 ` [PATCH mptcp-next v2 19/21] mptcp: selftests: support MPTCP_PM_CMD_SUBFLOW_DESTROY Kishen Maloor
2022-01-12 22:15 ` [PATCH mptcp-next v2 20/21] mptcp: selftests: capture netlink events Kishen Maloor
2022-01-12 22:15 ` [PATCH mptcp-next v2 21/21] selftests: mptcp: functional tests for the userspace PM type Kishen Maloor
2022-01-12 22:35 ` selftests: mptcp: functional tests for the userspace PM type: Build Failure MPTCP CI
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