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smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BDtlvQwS; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="BDtlvQwS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0BB72C433F1 for ; Thu, 15 Feb 2024 17:08:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1708016904; bh=qO/pcAGedrZ3bbijtKmMHciEXnoodnXrTN/a4wmXTbw=; h=Date:From:Subject:To:From; b=BDtlvQwS4ciJwylWp5Jm24a3STIfwhGco4FERKqPeBjwQxKpZWG5kCUJ51O+VoQhS sRM8MfhVT4Ma+/HSdKCPGnhjEN7AyoOUasJXIY7U0mbDxjy5GGU57xeiekRtKUbRkH VqKFG7bZegaKzC45u2Oed8AGuOvctQ1YXwboOQjSArhcNcMXnfHQSDq122kQBRqrLQ M0froIxburb2cCSIW7KQScAI4UmtL1JzzngaHuBTuMaY9Oc5nfPHZoBEEnAIVeXADx NjGiOIFJYZHlJ+3sqw7dPcfQYUeIPKrJ/O73RpSkOPB6HY5tFHopPLHQFnj/Os+m2B pMkxjK8uPvYYQ== Message-ID: <34bef42e-451c-4c98-b21f-cf5fc69fb1c1@kernel.org> Date: Thu, 15 Feb 2024 18:08:22 +0100 Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Content-Language: en-GB, fr-BE From: Matthieu Baerts Subject: [Weekly meetings] MoM - 14th of February 2024 Autocrypt: addr=matttbe@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 8bit Hello everyone, This week, we had our 271st meeting with Mat (Cruise), Paolo, Davide (Red Hat) and myself (NGI0 Core). Thanks again for this new good meeting! Here are the minutes of the meeting: Accepted patches: - The list of accepted patches can be seen on PatchWork: https://patchwork.kernel.org/project/mptcp/list/?state=3 netdev (if mptcp ML is in cc) (by: Geliang Tang): 13549363: [bpf-next,v5,1/3] bpf, btf: Fix return value of register_btf_id_dtor_kfuncs 13549364: [bpf-next,v5,2/3] bpf, btf: Add check_btf_kconfigs helper 13549365: [bpf-next,v5,3/3] bpf, btf: Check btf for register_bpf_struct_ops: - Series: bpf, btf: Add DEBUG_INFO_BTF checks for __register_bpf_struct_ops - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=824190&state=*&archive=both 13550237: [net,1/7] mptcp: drop the push_pending field 13550238: [net,2/7] mptcp: fix rcv space initialization 13550239: [net,3/7] mptcp: fix more tx path fields initialization 13550240: [net,4/7] mptcp: corner case locking for rx path fields initialization 13550241: [net,5/7] mptcp: check addrs list in userspace_pm_get_local_id 13550242: [net,6/7] mptcp: really cope with fastopen race 13550243: [net,7/7] MAINTAINERS: update Geliang's email address: - Series: mptcp: locking cleanup & misc. fixes - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/list/?series=824412&state=*&archive=both our repo (by: Geliang Tang, Matthieu Baerts, Paolo Abeni): 13540609: [mptcp-net,1/4] mptcp: add needs_id for userspace appending addr 13540610: [mptcp-net,2/4] mptcp: add needs_id for netlink appending addr: - Submitter: Geliang Tang 13548001: [mptcp-next,v3,1/2] mptcp: map v4 address to v6 when destroying subflow 13548002: [mptcp-next,v3,2/2] selftests: mptcp: rm subflow with v4/v4mapped addr: - Series: fixes for "map v4 address to v6" - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=823789&state=*&archive=both 13548910: [mptcp-next,1/3] selftests: mptcp: pm nl: also list skipped tests 13548911: [mptcp-next,2/3] selftests: mptcp: pm nl: avoid error msg on older kernels 13548912: [mptcp-next,3/3] selftests: mptcp: diag: fix bash warnings on older kernels: - Series: selftests: mptcp: fixes for issues seen on v5.15.x - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/list/?series=824054&state=*&archive=both 13549503: [mptcp-net] selftests: mptcp: simult flows: re-adapt BW: - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/patch/20240208-selftests-mptcp-simult_flows_faster-v1-1-2859ca46e582@kernel.org/ - maybe good to check if the estimations are OK: - e.g. maybe take into account the extra delay? - maybe a pending fix could improve the situation (missing event) - TODO: create a new issue to track that → Matth → done 13550460: [mptcp-net,v2,1/4] mptcp: fix lockless access in subflow ULP diag 13550463: [mptcp-net,v2,2/4] mptcp: fix data races on local_id 13550461: [mptcp-net,v2,3/4] mptcp: fix data races on remote_id 13550462: [mptcp-net,v2,4/4] mptcp: fix duplicate subflow creation: - Series: mptcp: fix duplicate subflow creation - Submitter: Paolo Abeni - URL: https://patchwork.kernel.org/project/mptcp/list/?series=824465&state=*&archive=both 13551665: [mptcp-net,1/5] selftests: mptcp: simult flows: fix some subtest names 13551664: [mptcp-net,2/5] selftests: mptcp: userspace_pm: unique subtest names 13551666: [mptcp-net,3/5] selftests: mptcp: diag: unique 'in use' subtest names 13551667: [mptcp-net,4/5] selftests: mptcp: diag: unique 'cestab' subtest names 13551668: [mptcp-net,5/5] selftests: mptcp: lib: catch duplicated subtest entries: - Series: selftests: mptcp: unique subtest names - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/list/?series=824748&state=*&archive=both 13552846: [virtme-docker,v5] tests: add bpftests support: - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/patch/c8d9aacfe97acd74c369496a573ea64070485382.1707729702.git.geliang@kernel.org/ Pending patches: - The list of pending patches can be seen on PatchWork: https://patchwork.kernel.org/project/mptcp/list/?state=* netdev (if mptcp ML is in cc) (by: Matthieu Baerts, Paolo Abeni): 13528961: [mptcp-stable] mptcp: introduce explicit flag for first subflow disposal: - Submitter: Paolo Abeni - URL: https://patchwork.kernel.org/project/mptcp/patch/a1503ab571c8c076de62b872437d220a2260d2a5.1706094997.git.pabeni@redhat.com/ - The stable team maybe missed the patch? Maybe due to the tag? - Should it be recent? @Christoph - Or we wait one more week? 13552937: configs/debug: add NET debug config: - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/patch/20240212-kconfig-debug-enable-net-v1-1-fb026de8174c@kernel.org/ - Not directly related to MPTCP - for the CIs, from a discussion with Jakub 13555794: [v1,net-next] net: Deprecate SO_DEBUG and reclaim SOCK_DBG bit.: - Submitter: Kuniyuki Iwashima - URL: https://patchwork.kernel.org/project/mptcp/patch/20240213223135.85957-1-kuniyu@amazon.com/ - Not directly related to MPTCP - Matth reviewed it: v2 needed our repo (by: Geliang Tang, Kuniyuki Iwashima, Matthieu Baerts, Paolo Abeni): 12282219: [RESEND,RFC,2/4] tcp: move selected mptcp helpers to tcp.h/mptcp.h 12282221: [RESEND,RFC,4/4] tcp: parse tcp options contained in reset packets: 12282223: [RESEND,RFC,mptpcp-next] mptcp: add ooo prune support: 12282225: [RESEND,1/5] tcp: make two mptcp helpers available to tcp stack 12282227: [RESEND,5/5] mptcp: send fastclose if userspace closes socket with unread data: 13070467: [mptcp-next,v4,1/2] mptcp: update mptcp_push_release 13070468: [mptcp-next,v4,2/2] mptcp: retrans for redundant sends: - State: Changes requested - Series: BPF redundant scheduler, part 3 - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=703615&state=*&archive=both - Skip: status is the same 13294008: [iperf3] add MPTCPv1 support: - State: Changes requested - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/patch/298b8a39788b5b24db3abdce70323cc5a17dcbd1.1687843228.git.geliang.tang@suse.com/ - Skip: status is the same 13305089: [mptcp-next,1/6] mptcp: sockopt: move tcp_inq code to a dedicated function 13305091: [mptcp-next,2/6] mptcp: sockopt: update supported list 13305093: [mptcp-next,3/6] mptcp: sockopt: get val in a generic way 13305090: [mptcp-next,4/6] mptcp: sockopt: add missing getsockopt() options 13305094: [mptcp-next,5/6] mptcp: sockopt: set val in a generic way 13305092: [mptcp-next,6/6] mptcp: sockopt: support IP_TTL & IPV6_UNICAST_HOPS: - State: Changes requested - Series: mptcp: sockopt: uniform code to get/set values - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/list/?series=763505&state=*&archive=both - Skip: status is the same 13545002: [mptcp-next] mptcp: add a sk_is_tcp check for sk_is_mptcp: - State: Under review - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/patch/e97e306f73ff10b437eef979b7d5d82b822e2f52.1707113244.git.tanggeliang@kylinos.cn/ - it looks like we don't want an extra check all the time - and renaming the helper might not help → many calls on TCP side - it looks like it would not be needed with the 'mptcp: check the protocol with DEBUG_NET': - we would have a warning if we do a tcp_sk() on a non TCP socket from MPTCP code only: enough. → looks like we don't need the patch at the end. Mat will send a message on the ML + close the GH issue 13548358: [mptcp-next,v3,1/3] mptcp: token kunit: set protocol 13548359: [mptcp-next,v3,2/3] mptcp: check the protocol in tcp_sk() with DEBUG_NET 13548360: [mptcp-next,v3,3/3] mptcp: check the protocol in mptcp_sk() with DEBUG_NET: - State: Needs ack - Series: mptcp: check the protocol with DEBUG_NET - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/list/?series=823928&state=*&archive=both 13548914: [mptcp-next] selftests: mptcp: stop forcing iptables-legacy: - State: New - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/patch/20240207-selftests-mptcp-iptables-nft-v1-1-108de489316e@kernel.org/ 13553401: [mptcp-next,v2,1/7] mptcp: push ad DSS boundaries 13553402: [mptcp-next,v2,2/7] mptcp: fix snd_wnd initialization for passive socket 13553404: [mptcp-next,v2,3/7] mptcp: fix potential wake-up event loss 13553403: [mptcp-next,v2,4/7] mptcp: cleanup writer wake-up 13553405: [mptcp-next,v2,5/7] mptcp: avoid some duplicate code in socket option handling 13553406: [mptcp-next,v2,6/7] mptcp: implement TCP_NOTSENT_LOWAT support. 13553407: [mptcp-next,v2,7/7] mptcp: cleanup SOL_TCP handling: - State: New - Series: mptcp: implement TCP_NOTSENT_LOWAT support - Submitter: Paolo Abeni - URL: https://patchwork.kernel.org/project/mptcp/list/?series=825251&state=*&archive=both - v2 addressing some comments from Mat - minor modifications - 3 first patches are for -net 13554435: [mptcp-net,1/5] selftests: mptcp: netlink: drop duplicate var ret 13554436: [mptcp-net,2/5] selftests: mptcp: simult flows: define missing vars 13554437: [mptcp-net,3/5] selftests: mptcp: add ss mptcp support checks 13554438: [mptcp-net,4/5] selftests: mptcp: join: change capture/checksum as bool 13554439: [mptcp-net,5/5] selftests: mptcp: diag: change timeout_poll to 30: - State: New - Series: add helpers and vars in mptcp_lib.sh, part 1 - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=825429&state=*&archive=both - Matth is looking at that → Done 13556351: [mptcp-next,v12,01/15] mptcp: export mptcp_genl_family & mptcp_nl_fill_addr 13556352: [mptcp-next,v12,02/15] mptcp: implement mptcp_userspace_pm_dump_addr 13556353: [mptcp-next,v12,03/15] mptcp: add token for get-addr in yaml 13556354: [mptcp-next,v12,04/15] mptcp: dump addrs in userspace pm list 13556355: [mptcp-next,v12,05/15] mptcp: check userspace pm flags 13556356: [mptcp-next,v12,06/15] selftests: mptcp: add userspace pm subflow flag 13556357: [mptcp-next,v12,07/15] selftests: mptcp: add token for dump_addr 13556358: [mptcp-next,v12,08/15] selftests: mptcp: add check_output helper 13556359: [mptcp-next,v12,09/15] selftests: mptcp: dump after creating id 0 subflow 13556360: [mptcp-next,v12,10/15] selftests: mptcp: dump userspace addrs list 13556361: [mptcp-next,v12,11/15] mptcp: add userspace_pm_lookup_addr_by_id helper 13556362: [mptcp-next,v12,12/15] mptcp: implement mptcp_userspace_pm_get_addr 13556363: [mptcp-next,v12,13/15] mptcp: get addr in userspace pm list 13556364: [mptcp-next,v12,14/15] selftests: mptcp: add token for get_addr 13556365: [mptcp-next,v12,15/15] selftests: mptcp: userspace pm get addr tests: - State: New - Series: dump for userspace pm - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=825972&state=*&archive=both - A rebase of the v11. Issues on Github: https://github.com/multipath-tcp/mptcp_net-next/issues/ Recently opened (latest from the last meeting: 474): None. Bugs (opened, flagged as "bug" and assigned) 471 Crash in `netif_rx_internal` [bug] [wontfix] [selftests] @matttbe 451 syzkaller: possible deadlock in` __dev_queue_xmit` [bug] [syzkaller] @dcaratti 449 `MPTcpExtMPCapableFallbackACK` - looks surprising [bug] @dcaratti 445 MPTCP Info counters: start seq numbers ones from 0 [bug] @geliangtang 403 userspace pm: only remove entry from `local_addr_list` when sending a `REMOVE_ADDR` [bug] [pm] @geliangtang 343 scheduler: react when subflow-level events pop up (ACK/RTO) [bug] [sched] @geliangtang Bugs (opened and flagged as "bug" and not assigned) 463 syzkaller: INFO: task hung in `lock_sock_nested` [bug] [syzkaller] 439 mptcp vs net.ipv4.tcp_shrink_window [bug] 416 No new subflow when removing an endpoint and adding a new one [bug] 336 Issues with BPF packet scheduler [bug] [sched] [bpf] 325 selftests: `mptcp_join`: test 18 `signal addresses race test` is sometimes failing [bug] [selftests] 324 selftests: `mptcp_join`: tests `fastclose test` & `fastclose server test` are sometimes failing [bug] [selftests] 318 selftests: `mptcp_connect.sh` sometimes fails when validating SYN cookies [bug] [selftests] 315 Issues with backup flow [bug] In Progress (opened, new feature and assigned) 474 CI: GH Actions: use self-hosted runners [enhancement] [CI] @matttbe 472 CI: switch to virtme-ng [enhancement] [CI] @matttbe 464 `TCP_NOTSENT_LOWAT` socket-option support [enhancement] @pabeni 453 sk_is_mptcp() only works with struct tcp_sock * [enhancement] @geliangtang 446 MPTCP Info counters: display "last time" actions info [enhancement] @geliangtang 353 sockopt: uniform code to get/set values [enhancement] @matttbe 349 scheduler: (un)mark a subflow as "stale" [enhancement] [sched] @geliangtang 296 Support IP_TTL & IPV6_UNICAST_HOPS [enhancement] @matttbe 234 Packetdrill: Support MPC+DATA+checksum error [enhancement] [packetdrill] @spoorva 167 packetdrill: add coverage for RM_ADDR [enhancement] [packetdrill] @dcaratti 75 BPF: packet scheduler [enhancement] [sched] [bpf] @geliangtang 74 BPF: path manager [enhancement] [pm] [bpf] @geliangtang Assigned Questions (opened, questions and assigned) None. Open questions (opened, questions and not assigned) 459 Are the endpoint flags `signal` and `subflow` meant to be exclusive? or how to get MPTCP to work for both directions? [question] 452 mptcp causes the network to become very slow [question] 412 shadowsocks-libev not working, need guidance for PM configuration [question] 411 Problem with IPROTO [question] For later (opened and not assigned assigned) 473 CI: tracking: publish tests results to Kernel CI [enhancement] [CI] 469 CI: add code coverage support [enhancement] [CI] 467 Scheduler: add redundant scheduler support in BPF [enhancement] [sched] 462 selftests: print (and set?) random seed [enhancement] [selftests] 461 Protocol: extend Data-Level Length field [enhancement] [protocol] 448 Allow sending ADD_ADDR IPv6 with port-number if TCP-timestamps are enabled [enhancement] 441 optimize established options generation [enhancement] 440 in-kernel PM: re-establish subflows after "network" errors [enhancement] [pm] 426 selftests: validate listener sockets with multiple accepts [enhancement] [selftests] 397 Doc and guidance for users [enhancement] [documentation] 396 ci: periodically run selftests from the export branch on stable kernels [enhancement] [selftests] 394 selftests: ability to track subtests [enhancement] [selftests] 389 packetdrill: increase coverage for "early `close()`" cases [enhancement] [packetdrill] 383 TCP_KEEPIDLE, TCP_KEEPINTVL, TCP_KEEPCNT are not implemented in mptcp_setsockopt_sol_tcp [enhancement] 350 scheduler: API changes (tasks) [enhancement] [sched] 348 scheduler: frequently probe "stale" subflow with reinjected data [enhancement] [sched] 345 scheduler: "penalise" some subflows by sending less than their cwnd [enhancement] [sched] 344 scheduler: new callback to initiate optimisations [enhancement] [sched] 337 in-kernel PM: listen socket: support "behind a NAT" use case [enhancement] [pm] 335 Server to Client subflows: option to allow joining the initial address and port [enhancement] [pm] 334 PM: in-kernel: send >1 ADD_ADDR before the establishment of a new subflow [enhancement] [pm] 333 New MIBs to help understanding issues when PM cannot create new subflows [enhancement] [pm] 332 scheduler: implement a "opportunistic retransmission" [enhancement] [sched] 298 CG Memory accounting for passive MPTCP socket [enhancement] 289 mptcp: audit comments for non inclusive language [enhancement] 273 Packetdrill: test outgoing MP_FASTCLOSE [enhancement] [packetdrill] 266 Packetdrill: add MP_FAIL coverage [packetdrill] 236 Review supported sockopts list [enhancement] 222 Netlink event API: add SUBFLOW_CREATED event [enhancement] 215 TCP Urgent pointer and MPTCP [enhancement] 213 add MPTCP man page [enhancement] 208 better handing of ssk memory pressure in the TX path [enhancement] 202 Add sendmsg support for ancillary data [enhancement] 197 more mibs needed [enhancement] 180 Get an update when MPTCP fall back to TCP [enhancement] 177 improve retransmit subflow selection [enhancement] 169 packetdrill: add coverage for ADD_ADDR and MP_JOIN on a different port [enhancement] [packetdrill] 150 remove completely workqueue usage [enhancement] 141 avoid acquiring mptcp_data_lock() twice in the receive path [enhancement] 133 PM: Closing the MPTCP connection when last subflow is not the initial one and its IP address is removed [enhancement] 128 When the last subflow is closed without DATA_FIN and msk Established, close msk (after a timeout) [enhancement] 78 notify the application (userspace) when a subflow is added/removed [enhancement] 77 [gs]etsockopt: forward to new/existing SF [enhancement] 76 [gs]etsockopt per subflow: BPF [enhancement] [bpf] 57 After a few attempts of failed MPTCP, directly fallback to TCP for new connections [enhancement] 43 [syzkaller] Change syzkaller to exercise MPTCP inet_diag interface [enhancement] [syzkaller] 41 reduce indirect call usage [enhancement] 24 Revisit layout of struct mptcp_subflow_context [enhancement] Recently closed (since 2024-02-07) 435 in-kernel PM: fullmesh: too many paths are being created [bug] @matttbe 406 Compile and run mptcp bpf selftests in CI [enhancement] [selftests] [bpf] [CI] @geliangtang: remaining task: integrate that in GitHub Action → Matth is working on that. FYI: Current Roadmap: - Bugs: https://github.com/multipath-tcp/mptcp_net-next/issues?q=is%3Aissue+is%3Aopen+label%3Abug - Current/Coming merge window (6.9): https://github.com/orgs/multipath-tcp/projects/7 - For later: https://github.com/orgs/multipath-tcp/projects/1 Patches to send to netdev: - Fixes for other trees: - [4d980899ba3f] x86: Fixup from the removed INT3 if it is unhandled (Masami Hiramatsu): - temp workaround for QEmu issue https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/2051965 - Fixes for -net: - [0e5cafadf1c7] mptcp: add needs_id for userspace appending addr (Geliang Tang) - [f3b359cbcba7] mptcp: add needs_id for netlink appending addr (Geliang Tang) - [f70b2669ea98] selftests: mptcp: simult flows: re-adapt BW (Matthieu Baerts (NGI0)): - maybe best to wait a bit, see the comments above ↑ - [a026abbb7b78] mptcp: fix lockless access in subflow ULP diag (Paolo Abeni) - [955ccdbcdd81] mptcp: fix data races on local_id (Paolo Abeni) - [ae216d9c00d6] mptcp: fix data races on remote_id (Paolo Abeni) - [502a662578da] mptcp: fix duplicate subflow creation (Paolo Abeni) - [ca917054deec] selftests: mptcp: pm nl: also list skipped tests (Matthieu Baerts (NGI0)) - [682ac98be079] selftests: mptcp: pm nl: avoid error msg on older kernels (Matthieu Baerts (NGI0)) - [e2d0b6f94dd6] selftests: mptcp: diag: fix bash warnings on older kernels (Matthieu Baerts (NGI0)) - [5e25844ac2ae] selftests: mptcp: simult flows: fix some subtest names (Matthieu Baerts (NGI0)) - [f0e00dc641bf] selftests: mptcp: userspace_pm: unique subtest names (Matthieu Baerts (NGI0)) - [bd5124d4fd65] selftests: mptcp: diag: unique 'in use' subtest names (Matthieu Baerts (NGI0)) - [0c059b19b642] selftests: mptcp: diag: unique 'cestab' subtest names (Matthieu Baerts (NGI0)): - it looks like we can send all of the ones above, except one - TODO: Matth: send them to netdev → in progress - [a19cd6766361] mptcp: map v4 address to v6 when destroying subflow (Geliang Tang) - [260fcb6906cb] selftests: mptcp: rm subflow with v4/v4mapped addr (Geliang Tang): - Have been applied today, maybe we can wait a bit - Fixes for net-next: / - Features for net-next: - [319ff71af424] selftests: mptcp: lib: catch duplicated subtest entries (Matthieu Baerts (NGI0)): - depending on patches that are queued for -net: best to wait. - Features for net-next (next): / - Features for other trees: - [7a052d1ecd40] mptcp: add sched_data helpers (Geliang Tang) - [073fba29f933] bpf: Add bpf_mptcp_sched_ops (Geliang Tang) - [ab7c9c754f9c] bpf: Add bpf_mptcp_sched_kfunc_set (Geliang Tang) - [dee2aeb37f33] selftests/bpf: Add mptcp sched structs (Geliang Tang) - [f589ea7324dc] selftests/bpf: Add bpf scheduler test (Geliang Tang) - [fcc1e6dbfa2e] selftests/bpf: Add bpf_first scheduler (Geliang Tang) - [aee4cce52333] selftests/bpf: Add bpf_first test (Geliang Tang) - [2f7f151a5d4d] selftests/bpf: Add bpf_bkup scheduler (Geliang Tang) - [2b9415a1e0e8] selftests/bpf: Add bpf_bkup test (Geliang Tang) - [428b1a6af9fa] selftests/bpf: Add bpf_rr scheduler (Geliang Tang) - [3484b436a72b] selftests/bpf: Add bpf_rr test (Geliang Tang) - [688a01f9fc5a] selftests/bpf: Add bpf_red scheduler (Geliang Tang) - [bc0b2ffd5320] selftests/bpf: Add bpf_red test (Geliang Tang) - [0e4c78ce35c8] bpf: Export more bpf_burst related functions (Geliang Tang) - [75803d2785aa] selftests/bpf: Add bpf_burst scheduler (Geliang Tang) - [0c78171755d8] selftests/bpf: Add bpf_burst test (Geliang Tang): - wait for the sched refactoring Extra tests: - news about Syzkaller? (Christoph): - / - news about interop with mptcp.org/other stacks? (?): - / - packetdrill (Davide): - PR for TCP_NOTSENT_LOWAT: - there are some bugs in packetdrill with the coalescing: - it ignores MPTCP options, aggregate packets that are not continuous from MPTCP view, keeping the DSS option from the first packet - https://github.com/multipath-tcp/packetdrill/pull/132 - one option: patch packetdrill to fix MPTCP DSS options of the coalesced packet: - we don't care about the data that are carried, so we could aggregate non continuous packets from an MPTCP point of view - but the code is quite "complex" - TODO: Matth: create a new issue for that with ↑ → done - Patchew (Davide): - Prevent recreating series (git push -f) when a new tag like Reviewed-by is shared on the ML?: - https://github.com/patchew-project/patchew/pull/143 - but not tested - OK to ask Patchew devs to look at it? → seems ok, small patch, we can validate the bypass, not the new option - Prevent CI modifications: am hook already there - CI (Matth): - Seems quite green, same flaky tests GO: - What's blocking to have it enabled by default: - TCP_KEEPIDLE, TCP_KEEPINTVL, TCP_KEEPCNT - https://github.com/multipath-tcp/mptcp_net-next/issues/383 - https://github.com/golang/go/issues/56539 - https://go-review.googlesource.com/c/go/+/563575 - Maybe as part of a fix? TODO: Matth: add this somewhere → done MPTCP: bogus mpc option on established client sk: - can be seen when running the selftests (mptcp_join: no MPC reuse with single endpoint): https://cirrus-ci.com/task/5883870294310912?logs=test#L6445 (happening 586 times during when running all tests) - normal? https://github.com/multipath-tcp/mptcp_net-next/blob/export/net/mptcp/options.c#L986 not only in case of fallback to TCP? - Matth will investigate LPC 2024: - in Vienna - 18-20th of September - https://lpc.events - might be more likely to have MPTCP contributors there - good to prebook? Next meeting: - Next one on *Wednesday*, the 21st of February. - 16:30 UTC (8.30am PST, 5.30pm CET, 12.30am CST) - Still open to everyone! - https://annuel2.framapad.org/p/mptcp_upstreaming_20240221 Feel free to comment on these topics and suggest new ones for the next meeting! Talk to you on Wednesday, Matt -- Sponsored by the NGI0 Core fund.