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smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=kqczMYe9; 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="kqczMYe9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3FB15C4CEE7 for ; Tue, 8 Apr 2025 11:15:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1744110937; bh=W8FBQx0fGLQ41PK8ar5S5jDFeIhluhD0DUFds6lDrNM=; h=Date:From:To:Subject:From; b=kqczMYe9tme/6XnR8d5qigHP2r3gRwmtbftEaK6jwlbyO91DPqfAyOh3MOOAeQd+X o+Gl2Le05rEcxq7OWKcBFRe8xuUtQSx7PQwzLpc0cUxLAOj12izNksDM85S6hFaGLP Wjqc/NkbdB+ENPDTd2rQtru9V1N7yHL7BJvPr4/EHL9vs3dA/+1ohxS83gTwmsTOyb RFDoO+Kwr9+E+r3lripoZAJPxBAI9owk2fT7aECwSMC9Bd0Wiv919qHIzWfXtEDP1x 8OhA4ILnI+9ZjnWT/RQooo/vaqzsHwV57MDcFuUEIai7fq5UzNVOiAdT4CKLZm+VcB 4nxxPmD4IbvAg== Message-ID: Date: Tue, 8 Apr 2025 13:15:33 +0200 Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Beta From: Matthieu Baerts Content-Language: en-GB, fr-BE To: MPTCP Linux Subject: [Weekly meetings] MoM - 26th of March 2025 Autocrypt: addr=matttbe@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit Hello everyone, Two weeks ago, we had our new meeting with Mat (Cruise) and myself (NGI0 Core). Thanks again for this new good meeting! Here are the minutes of the meeting: Accepted patches: netdev (if mptcp ML is in cc) (by: Geliang Tang, Matthieu Baerts, Yue Haibing): 13996023: [net-next] mptcp: Remove unused declaration mptcp_set_owner_r(): - Submitter: Yue Haibing - URL: https://patchwork.kernel.org/project/mptcp/patch/20250228095148.4003065-1-yuehaibing@huawei.com/ 13996126: [net-next,v2,1/3] sock: add sock_kmemdup helper 13996127: [net-next,v2,2/3] net: use sock_kmemdup for ip_options 13996128: [net-next,v2,3/3] mptcp: use sock_kmemdup for address entry: - Series: add sock_kmemdup helper - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=938919&state=*&archive=both 13996530: [net-next,1/5] selftests: mptcp: Add a tool to get specific msk_info 13996531: [net-next,2/5] selftests: mptcp: add a test for mptcp_diag_dump_one 13996532: [net-next,3/5] mptcp: pm: in-kernel: avoid access entry without lock 13996533: [net-next,4/5] mptcp: pm: in-kernel: reduce parameters of set_flags 13996534: [net-next,5/5] mptcp: pm: exit early with ADD_ADDR echo if possible: - Series: mptcp: improve code coverage and small optimisations - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/list/?series=939014&state=*&archive=both 13999276: [net] mptcp: fix 'scheduling while atomic' in mptcp_pm_nl_append_new_local_addr: - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/patch/20250303-net-mptcp-fix-sched-while-atomic-v1-1-f6a216c5a74c@kernel.org/ 14004256: [net-next,1/2] tcp: ulp: diag: always print the name if any 14004257: [net-next,2/2] tcp: ulp: diag: more info without CAP_NET_ADMIN: - Series: tcp: ulp: diag: expose more to non net admin users - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/list/?series=940975&state=*&archive=both 14006273: [net-next,01/15] mptcp: pm: use addr entry for get_local_id 14006274: [net-next,02/15] mptcp: pm: remove '_nl' from mptcp_pm_nl_addr_send_ack 14006275: [net-next,03/15] mptcp: pm: remove '_nl' from mptcp_pm_nl_mp_prio_send_ack 14006276: [net-next,04/15] mptcp: pm: remove '_nl' from mptcp_pm_nl_work 14006277: [net-next,05/15] mptcp: pm: remove '_nl' from mptcp_pm_nl_rm_addr_received 14006278: [net-next,06/15] mptcp: pm: remove '_nl' from mptcp_pm_nl_subflow_chk_stale() 14006279: [net-next,07/15] mptcp: pm: remove '_nl' from mptcp_pm_nl_is_init_remote_addr 14006280: [net-next,08/15] mptcp: pm: kernel: add '_pm' to mptcp_nl_set_flags 14006281: [net-next,09/15] mptcp: pm: avoid calling PM specific code from core 14006282: [net-next,10/15] mptcp: pm: worker: split in-kernel and common tasks 14006283: [net-next,11/15] mptcp: pm: export mptcp_remote_address 14006284: [net-next,12/15] mptcp: pm: move generic helper at the top 14006285: [net-next,13/15] mptcp: pm: move generic PM helpers to pm.c 14006286: [net-next,14/15] mptcp: pm: split in-kernel PM specific code 14006287: [net-next,15/15] mptcp: pm: move Netlink PM helpers to pm_netlink.c: - Series: mptcp: pm: code reorganisation - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/list/?series=941476&state=*&archive=both 14014655: [net-next,01/12] mptcp: pm: split netlink and in-kernel init 14014656: [net-next,02/12] mptcp: pm: in-kernel: use kmemdup helper 14014657: [net-next,03/12] mptcp: pm: use pm variable instead of msk->pm 14014658: [net-next,04/12] mptcp: pm: only fill id_avail_bitmap for in-kernel pm 14014659: [net-next,05/12] mptcp: pm: add struct_group in mptcp_pm_data 14014660: [net-next,06/12] mptcp: pm: define struct mptcp_pm_ops 14014661: [net-next,07/12] mptcp: pm: register in-kernel and userspace PM 14014662: [net-next,08/12] mptcp: sysctl: set path manager by name 14014663: [net-next,09/12] mptcp: sysctl: map path_manager to pm_type 14014664: [net-next,10/12] mptcp: sysctl: map pm_type to path_manager 14014665: [net-next,11/12] mptcp: sysctl: add available_path_managers 14014666: [net-next,12/12] selftests: mptcp: add pm sysctl mapping tests: - Series: mptcp: pm: prep work for new ops and sysctl knobs - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/list/?series=943469&state=*&archive=both 14016435: [net-next] selftests: drv-net: fix merge conflicts resolution: - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/patch/20250314-net-next-drv-net-ping-fix-merge-v1-1-0d5c19daf707@kernel.org/ 13992062: [iproute2-net] ss: mptcp: subflow: display seq counters as decimal: - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/patch/20250226-iproute2-net-ss-ulp-mptcp-dec-v1-1-4f4177cff217@kernel.org/ 14002857: [net-next] tcp: clamp window like before the cleanup: - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/patch/20250305-net-next-fix-tcp-win-clamp-v1-1-12afb705d34e@kernel.org/ 14017381: [net,1/3] mptcp: Fix data stream corruption in the address announcement 14017382: [net,2/3] mptcp: sockopt: fix getting IPV6_V6ONLY 14017383: [net,3/3] mptcp: sockopt: fix getting freebind & transparent: - Series: mptcp: fix data stream corruption and missing sockopts - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/list/?series=944157&state=*&archive=both our repo (by: Arthur Mongodin, Gang Yan, Geliang Tang, Matthieu Baerts, Thorsten Blum): 13977532: [mptcp-next,v15,1/8] Squash to "mptcp: add sched_data helpers" 13977533: [mptcp-next,v15,2/8] Squash to "bpf: Export mptcp packet scheduler helpers" 13977534: [mptcp-next,v15,3/8] Squash to "selftests/bpf: Add bpf_first scheduler & test" 13977535: [mptcp-next,v15,4/8] Squash to "selftests/bpf: Add bpf_bkup scheduler & test" 13977536: [mptcp-next,v15,5/8] Squash to "selftests/bpf: Add bpf_rr scheduler & test" 13977537: [mptcp-next,v15,6/8] Squash to "selftests/bpf: Add bpf_red scheduler & test" 13977538: [mptcp-next,v15,7/8] Squash to "selftests/bpf: Add bpf_burst scheduler & test" 13987388: [mptcp-next,v4,1/5] Revert "bpf: Extend bpf_skc_to_mptcp_sock to MPTCP sock" 13987389: [mptcp-next,v4,2/5] Revert "bpf: Allow use of skc_to_mptcp_sock in cg_sockopt" 13987390: [mptcp-next,v4,3/5] Squash to "bpf: Add mptcp_subflow bpf_iter" 13987391: [mptcp-next,v4,4/5] Revert "bpf: Acquire and release mptcp socket" 13987392: [mptcp-next,v4,5/5] Squash to "selftests/bpf: Add mptcp_subflow bpf_iter subtest": - Series: Squash to "Add mptcp_subflow bpf_iter support" - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=936873&state=*&archive=both 13992569: [mptcp-next,v2] mptcp: pm: exit early with ADD_ADDR echo if possible: - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/patch/20250226-mptcp-userspace-avoid-worker-v2-1-4b144f314353@kernel.org/ 13992904: [mptcp-next] Squash to "bpf: Add mptcp_subflow bpf_iter": - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/patch/20250226180727.2499531-2-matttbe@kernel.org/ 13996430: [mptcp-next,v2,01/14] mptcp: pm: remove '_nl' from mptcp_pm_nl_addr_send_ack 13996431: [mptcp-next,v2,02/14] mptcp: pm: remove '_nl' from mptcp_pm_nl_mp_prio_send_ack 13996432: [mptcp-next,v2,03/14] mptcp: pm: remove '_nl' from mptcp_pm_nl_work 13996433: [mptcp-next,v2,04/14] mptcp: pm: remove '_nl' from mptcp_pm_nl_rm_addr_received 13996434: [mptcp-next,v2,05/14] mptcp: pm: remove '_nl' from mptcp_pm_nl_subflow_chk_stale() 13996435: [mptcp-next,v2,06/14] mptcp: pm: remove '_nl' from mptcp_pm_nl_is_init_remote_addr 13996436: [mptcp-next,v2,07/14] mptcp: pm: kernel: add '_pm' to mptcp_nl_set_flags 13996437: [mptcp-next,v2,08/14] mptcp: pm: avoid calling PM specific code from core 13996438: [mptcp-next,v2,09/14] mptcp: pm: worker: split in-kernel and common tasks 13996439: [mptcp-next,v2,10/14] mptcp: pm: export mptcp_remote_address 13996440: [mptcp-next,v2,11/14] mptcp: pm: move generic helper at the top 13996441: [mptcp-next,v2,12/14] mptcp: pm: move generic PM helpers to pm.c 13996442: [mptcp-next,v2,13/14] mptcp: pm: split in-kernel PM specific code 13996443: [mptcp-next,v2,14/14] mptcp: pm: move Netlink PM helpers to pm_netlink.c: - Series: mptcp: pm: code reorganisation - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/list/?series=938995&state=*&archive=both 13998925: [mptcp-next] mptcp: pm: split netlink and in-kernel init: - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/patch/20250303-mptcp-pm-split-init-nl-kernel-v1-1-533c1575b5c2@kernel.org/ 14000077: [mptcp-next,v1,1/2] mptcp: pm: in-kernel: use kmemdup helper 14000078: [mptcp-next,v1,2/2] mptcp: pm: use pm variable instead of msk->pm: - Series: pm misc cleanups - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=939900&state=*&archive=both 14000524: [mptcp-net,1/2] mptcp: sockopt: fix getting IPV6_V6ONLY 14000525: [mptcp-net,2/2] mptcp: sockopt: fix getting freebind & transparent: - Series: mptcp: sockopt: fix missing get options - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/list/?series=940005&state=*&archive=both 14003152: [mptcp-next,v2,1/2] tcp: ulp: diag: always print the name if any 14003153: [mptcp-next,v2,2/2] tcp: ulp: diag: more info without CAP_NET_ADMIN: - Series: tcp: ulp: diag: remove net admin restriction - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/list/?series=940679&state=*&archive=both 14003753: [mptcp-next,v1,1/8] mptcp: add mptcp_validate_scheduler helper 14003754: [mptcp-next,v1,2/8] Squash to "bpf: Add bpf_mptcp_sched_ops" 14003755: [mptcp-next,v1,3/8] Squash to "selftests/bpf: Add bpf scheduler test" 14003756: [mptcp-next,v1,4/8] Squash to "selftests/bpf: Add bpf_first scheduler & test" 14003757: [mptcp-next,v1,5/8] Squash to "selftests/bpf: Add bpf_bkup scheduler & test" 14003758: [mptcp-next,v1,6/8] Squash to "selftests/bpf: Add bpf_rr scheduler & test" 14003759: [mptcp-next,v1,7/8] Squash to "selftests/bpf: Add bpf_red scheduler & test" 14003760: [mptcp-next,v1,8/8] Squash to "selftests/bpf: Add bpf_burst scheduler & test": - Series: cleanups for bpf schedulers - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=940810&state=*&archive=both 14011189: [mptcp-next,v2,1/2] mptcp: pm: only fill id_avail_bitmap for in-kernel pm 14011190: [mptcp-next,v2,2/2] mptcp: pm: add struct_group in mptcp_pm_data: - Series: add struct_group in mptcp_pm_data - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=942573&state=*&archive=both 14011208: [mptcp-next,v11,01/10] mptcp: pm: define struct mptcp_pm_ops 14011209: [mptcp-next,v11,02/10] mptcp: pm: register in-kernel and userspace PM 14011210: [mptcp-next,v11,03/10] mptcp: sysctl: set path manager by name 14011211: [mptcp-next,v11,04/10] mptcp: pm: init and release mptcp_pm_ops 14011212: [mptcp-next,v11,05/10] mptcp: pm: add get_local_id() interface 14011213: [mptcp-next,v11,06/10] mptcp: pm: add get_priority() interface 14011215: [mptcp-next,v11,08/10] mptcp: sysctl: map pm_type to path_manager 14011216: [mptcp-next,v11,09/10] mptcp: sysctl: add available_path_managers 14011217: [mptcp-next,v11,10/10] selftests: mptcp: add pm sysctl mapping tests: - Series: BPF path manager, part 5 - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=942579&state=*&archive=both 14015411: [net] mptcp: Fix data stream corruption in the address announcement: - Submitter: Arthur Mongodin - URL: https://patchwork.kernel.org/project/mptcp/patch/81b2a80e-2a25-4a5f-b235-07a68662aa98@randorisec.fr/ 14019697: [mptcp-next] selftests: mptcp: ignore mptcp_diag binary: - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/patch/20250317-mptcp-sft-diag-ignore-v1-1-d1e7ec9ff89a@kernel.org/ 14020795: [mptcp-next,v3] selftests: mptcp: fix incorrect fd checks in main_loop: - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/patch/59caf78b9d67a0a61a19a46f7820456f6ced3d6e.1742296236.git.tanggeliang@kylinos.cn/ 14021958: [mptcp-net,v2] mptcp: fix a NULL pointer result in panic: - Submitter: Gang Yan - URL: https://patchwork.kernel.org/project/mptcp/patch/20250319022733.51444-1-yangang@kylinos.cn/ 14022085: [mptcp-next,v3,1/1] selftests: mptcp: close fd_in before returning in main_loop: - Series: cleanups for main_loop - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=945438&state=*&archive=both 14026903: [mptcp-next,v4,1/9] Squash to "mptcp: pm: add get_local_id() interface" 14029282: [v2] mptcp: pm: Return local variable instead of freed pointer: - Submitter: Thorsten Blum - URL: https://patchwork.kernel.org/project/mptcp/patch/20250325163251.135510-2-thorsten.blum@linux.dev/ 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, Sebastian Andrzej Siewior, Yunsheng Lin): 13897129: [net-next,v2,09/10] net: replace page_frag with page_frag_cache 14024259: [bpf-next/net,v3,1/5] bpf: Register mptcp common kfunc set 14024260: [bpf-next/net,v3,2/5] bpf: Add mptcp_subflow bpf_iter 14024261: [bpf-next/net,v3,3/5] selftests/bpf: More endpoints for endpoint_init 14024262: [bpf-next/net,v3,4/5] selftests/bpf: Add mptcp_subflow bpf_iter subtest 14024263: [bpf-next/net,v3,5/5] selftests/bpf: Drop cgroup_fd of run_mptcpify: - State: New - Series: bpf: Add mptcp_subflow bpf_iter support - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/list/?series=946008&state=*&archive=both 14008559: [net-next,15/18] mptcp: Use nested-BH locking for hmac_storage: - discussions are on-going on other patches from the series: https://lore.kernel.org/all/99214ac9-cff7-4a5c-b439-ed9ec2c6877c@redhat.com/ our repo (by: Cong Liu, Gang Yan, Geliang Tang, Gregory Detal, Matthieu Baerts): 12282223: [RESEND,RFC,mptpcp-next] mptcp: add ooo prune support: 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 - status: 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 - status: same 13583230: [RFC] mptcp: react scheduler when subflow events pop up: - State: Changes requested - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/patch/433320c3a9db77bea53a34fc9c43a3c7e3320399.1709693691.git.tanggeliang@kylinos.cn/ - status: same 13675217: [mptcp-next,RFC,1/4] mptcp: add push sched callback 13675218: [mptcp-next,RFC,2/4] mptcp: use new push callback to schedule chunks 13675219: [mptcp-next,RFC,3/4] mptcp: bpf: allow to write to mptcp_sched_chunk 13675220: [mptcp-next,RFC,4/4] selftests/bpf: mptcp RR: send 1 MSS on each subflow: - State: RFC - Series: mptcp: update scheduler API - Submitter: Gregory Detal - URL: https://patchwork.kernel.org/project/mptcp/list/?series=856158&state=*&archive=both - status: same 13750069: [mptcp-next,1/4] selftests: mptcp: add cfg_timeo for mptcp_connect 13750070: [mptcp-next,2/4] selftests: mptcp: add io thread mode for mptcp_connect 13750071: [mptcp-next,3/4] selftests: mptcp: enable io thread mode 13750072: [mptcp-next,4/4] selftests: mptcp: join: add io thread tests: - State: Changes requested - Series: add io thread mode tests - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=875830&state=*&archive=both - status: same 13932555: [1/3] mptcp: fix invalid addr occupy 'add_addr_accepted' 13932556: [2/3] selftests: mptcp: relax conditions in SYN_TX validation 13932546: [3/3] selftests: mptcp: add a testcase for invalid addr timeout: - State: Changes requested - Series: [1/3] mptcp: fix invalid addr occupy 'add_addr_accepted' - Submitter: Gang Yan - URL: https://patchwork.kernel.org/project/mptcp/list/?series=923771&state=*&archive=both - status: same 14006331: [mptcp-next,v2,01/11] Revert "mptcp: sched: remove mptcp_sched_data" 14006332: [mptcp-next,v2,02/11] Squash to "bpf: Add bpf_mptcp_sched_ops" 14006333: [mptcp-next,v2,03/11] mptcp: add bpf_iter_task for mptcp_sched_data 14006334: [mptcp-next,v2,04/11] mptcp: set and clear bpf_iter_task 14006335: [mptcp-next,v2,05/11] mptcp: add mptcp_subflow_sched bpf_iter 14006336: [mptcp-next,v2,06/11] Squash to "selftests/bpf: Add bpf_first scheduler & test" 14006337: [mptcp-next,v2,07/11] Squash to "selftests/bpf: Add bpf_bkup scheduler & test" 14006338: [mptcp-next,v2,08/11] Squash to "selftests/bpf: Add bpf_rr scheduler & test" 14006339: [mptcp-next,v2,09/11] Squash to "selftests/bpf: Add bpf_red scheduler & test" 14006340: [mptcp-next,v2,10/11] Squash to "selftests/bpf: Add bpf_burst scheduler & test" 14006341: [mptcp-next,v2,11/11] mptcp: drop subflow contexts in mptcp_sched_data: - State: Rejected - Series: add bpf_iter_task - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=941486&state=*&archive=both - We will not add a new item in msk for BPF context, nor re-introducing mptcp_sched_data 14009184: [mptcp-next,v3,1/2] mptcp: add bpf_iter_task for mptcp_sock 14009185: [mptcp-next,v3,2/2] bpf: Customize mptcp's own sock lock: - State: Rejected - Series: add bpf_iter_task - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=942077&state=*&archive=both 14024767: [mptcp-next,v1,1/4] bpf: Add mptcp path manager struct_ops 14024768: [mptcp-next,v1,2/4] bpf: Export mptcp path manager kfuncs 14024769: [mptcp-next,v1,3/4] selftests/bpf: Add mptcp netlink pm subtest 14024770: [mptcp-next,v1,4/4] selftests/bpf: Add mptcp bpf_netlink pm subtest: - State: Changes requested - Series: BPF path manager, part 7 - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=946095&state=*&archive=both 14026904: [mptcp-next,v4,2/9] mptcp: pm: add established interfaces 14026905: [mptcp-next,v4,3/9] mptcp: pm: drop is_userspace in subflow_check_next 14026906: [mptcp-next,v4,4/9] mptcp: pm: drop redundant MPTCP_MIB_ADDADDRDROP 14026907: [mptcp-next,v4,5/9] mptcp: pm: add add_addr_received() interface 14026908: [mptcp-next,v4,6/9] mptcp: pm: add rm_addr_received() interface 14026909: [mptcp-next,v4,7/9] mptcp: pm: add add_addr_echo() interface 14026910: [mptcp-next,v4,8/9] mptcp: pm: add accept_new_subflow() interface 14026911: [mptcp-next,v4,9/9] mptcp: pm: add allow_new_subflow() interface: - State: Changes requested - Series: BPF path manager, part 6 - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=946713&state=*&archive=both - regarding the PM lock taken from the PM worker: - PM lock and callback: should be called without them and reduce the locks, but then spin_lock will be taken and released more instead of less for a longer period. - more unlock/lock == more costly, but should be OK: from worker and let more time to do more things in // - but we should not read pm->status without the lock, then modify it with the lock: either get a copy + reset with the lock or READ_ONCE - can we have mptcp_pm_worker() called multiple times for the same msk in //?: Geliang understood what Mat meant here and will update it in v5 of this set. 14028311: [mptcp-next,v1] mptcp: fix cast type of is_fully_established: - State: Rejected - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/patch/27b15c2de6fe36088ef95c4823d9e4a6d7bc9ec6.1742898970.git.tanggeliang@kylinos.cn/ Issues on GitHub: https://github.com/multipath-tcp/mptcp_net-next/issues/ Recently opened (latest from the last meeting: 549): 555 [syzbot] WARNING in `mptcp_do_fallback` [bug] [syzkaller] 553 MPTCP backup subflow compatibility [question] [feedback-needed] @matttbe 552 pm: in-kernel: delay before creating new subflows [enhancement] Recently discussed: 549 pm: in-kernel: set `msk->pm.work_pending` back to `true` [bug] 548 disable mptcp for an interface [question] @matttbe 530 about mptcp subflow creation question [question] [feedback-needed] 524 tests: cover more Diag-related code [selftests] @geliangtang 416 No new subflow when removing an endpoint and adding a new one [bug] [feedback-needed] Bugs (opened, flagged as "bug" and assigned) 498 in-kernel PM: closed subflows before `RM_ADDR` will not decrement `add_addr_accepted` [bug] [pm] @geliangtang 487 `send()` fails with `EAGAIN` in blocking IO mode [bug] [selftests] [sched] @geliangtang 484 BPF: `setsockopt` on an MPTCP socket: check support [bug] [bpf] @geliangtang 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) 555 [syzbot] WARNING in `mptcp_do_fallback` [bug] [syzkaller] 549 pm: in-kernel: set `msk->pm.work_pending` back to `true` [bug] 508 Divide error on device removal [bug] [feedback-needed] 505 Subflows won't be used when the interface for the main flow is a subinterface [bug] [feedback-needed] 495 [syzkaller] KASAN: slab-use-after-free Read in `__inet6_lookup_established` [bug] [syzkaller] 494 [syzkaller] WARNING in `__skb_flow_dissect` [bug] [syzkaller] 492 userspace pm: subflows counter: not updated when a subflows is removed from the other end [bug] 491 selftests: `mptcp_join`: tests `Infinite map` & `MP_FAIL MP_RST` are unstable [bug] [selftests] 483 [6.1] selftests: `mptcp_connect.sh` failures with `copyfd_io_poll: poll timed out` errors [bug] [selftests] 476 packetdrill: coalescing feature doesn't take into account MPTCP options [bug] [packetdrill] 475 `simult_flows`: unbalanced bwidth tests are unstable [bug] [selftests] 439 mptcp vs net.ipv4.tcp_shrink_window [bug] 416 No new subflow when removing an endpoint and adding a new one [bug] [feedback-needed] 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] 315 Issues with backup flow [bug] In Progress (opened, new feature and assigned) 514 Add MIB counters for fallback to TCP [enhancement] @geliangtang 480 MPTCP and KTLS support [enhancement] @geliangtang 434 in-kernel PM: increase subflows limit [enhancement] [pm] @matttbe 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 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) 553 MPTCP backup subflow compatibility [question] [feedback-needed] @matttbe 548 disable mptcp for an interface [question] @matttbe Open questions (opened, questions and not assigned) 530 about mptcp subflow creation question [question] [feedback-needed] 520 Question about proper MPTCP configuration over VPN. [question] [feedback-needed] 412 shadowsocks-libev not working, need guidance for PM configuration [question] [feedback-needed] For later (opened and not assigned) 552 pm: in-kernel: delay before creating new subflows [enhancement] 545 Deal with multiple pure TCP ACK without MPTCP options [enhancement] 543 TCPDump: display `MP_TCPRST` info [enhancement] 542 in-kernel PM: limit to one subflow per network interface for each connection [enhancement] [pm] 536 PM: new subflow: avoid selecting initial endpoint upon `ADD_ADDR` reception if servers deny MPJ to initial address [enhancement] [pm] 535 TCPDump: display `MP_CAPABLE` C flag [enhancement] 532 Userspace PM doesn't have access to `allow_join_id0` / `allow_join_initial_addr_port` bit from the SYN-ACK [enhancement] 525 tests: cover more MPTCP socket options [enhancement] [packetdrill] [selftests] 521 Implement psock_update_sk_prot, for eBPF SOCKMAP support [enhancement] 519 Reset the connection once "MPTCP has been verified" instead of a fallback [enhancement] 515 Add `TCP_MAXSEG` socket option support [enhancement] 511 Add MIB counters for sent `MPTCP_RST_EMPTCP` [enhancement] 503 in-kernel PM: use endpoints only to create subflows with received `ADD_ADDR` [enhancement] [pm] 497 in-kernel PM: check to create new subflows when some are destroyed [enhancement] [pm] 496 in-kernel PM: store received `ADD_ADDR` [enhancement] [pm] 481 remove refcount on TCP sockets for the timers [enhancement] 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] 396 ci: periodically run selftests from the export branch on stable kernels [enhancement] [selftests] 389 packetdrill: increase coverage for "early `close()`" cases [enhancement] [packetdrill] 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 in-kernel PM: send >1 ADD_ADDR before the establishment of a new subflow [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] 234 Packetdrill: Support MPC+DATA+checksum error [enhancement] [packetdrill] 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] 78 notify the application (userspace) when a subflow is added/removed [enhancement] 41 reduce indirect call usage [enhancement] 24 Revisit layout of struct mptcp_subflow_context [enhancement] Recently closed (since 20250226) 554 Observing significant delays (>30 seconds) on "handover" to subflow [bug] [pm] 551 selftests: `mptcp_connect.sh`: disconnect test reset [bug] [selftests] @matttbe 550 `getsockopt(IPPROTO_IPV6, IPV6_V6ONLY)` returns `-EOPNOTSUPP` [bug] @matttbe 499 selftests: `mptcp_connect.sh`: disconnect test timed out [bug] [selftests] Packetdrill PRs 52 2 months ago dcaratti Add initial coverage for RM_ADDR mptcp.dev PRs 51 4 days ago matttbe pm: subflow: specify the destination IP mptcpd PRs 314 1 month ago matttbe musl compat FYI: Current Roadmap: - Bugs: https://github.com/multipath-tcp/mptcp_net-next/issues?q=is%3Aissue+is%3Aopen+label%3Abug - Current/Coming merge window (6.15): https://github.com/orgs/multipath-tcp/projects/13 - For later: https://github.com/orgs/multipath-tcp/projects/1 Patches to send to NetDev: Net-next is closed. Extra tests: - news about Syzkaller? (Christoph): - Matth will look at set some up. - Packetdrill (Davide): - / - Patchew (Davide): - / - CI (Matth): - https://ci-results.mptcp.dev/flakes.html - https://netdev.bots.linux.dev/flakes.html?tn-needle=mptcp Next meeting: - Next one on Wednesday, the 9th of April. - 17:30 UTC (8.30am PDT, 5.30pm CEST, 11.30pm CST) - Still open to everyone! - https://annuel2.framapad.org/p/mptcp_upstreaming_20250409 Feel free to comment on these topics and suggest new ones for the next meeting! Talk to you soon, Matt -- Sponsored by the NGI0 Core fund.