#
621cde16 |
| 15-May-2024 |
Jakub Kicinski <kuba@kernel.org> |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Cross merge.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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#
1b294a1f |
| 15-May-2024 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'net-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski: "Core & protocols:
- Complete rework of garbage collectio
Merge tag 'net-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski: "Core & protocols:
- Complete rework of garbage collection of AF_UNIX sockets.
AF_UNIX is prone to forming reference count cycles due to fd passing functionality. New method based on Tarjan's Strongly Connected Components algorithm should be both faster and remove a lot of workarounds we accumulated over the years.
- Add TCP fraglist GRO support, allowing chaining multiple TCP packets and forwarding them together. Useful for small switches / routers which lack basic checksum offload in some scenarios (e.g. PPPoE).
- Support using SMP threads for handling packet backlog i.e. packet processing from software interfaces and old drivers which don't use NAPI. This helps move the processing out of the softirq jumble.
- Continue work of converting from rtnl lock to RCU protection.
Don't require rtnl lock when reading: IPv6 routing FIB, IPv6 address labels, netdev threaded NAPI sysfs files, bonding driver's sysfs files, MPLS devconf, IPv4 FIB rules, netns IDs, tcp metrics, TC Qdiscs, neighbor entries, ARP entries via ioctl(SIOCGARP), a lot of the link information available via rtnetlink.
- Small optimizations from Eric to UDP wake up handling, memory accounting, RPS/RFS implementation, TCP packet sizing etc.
- Allow direct page recycling in the bulk API used by XDP, for +2% PPS.
- Support peek with an offset on TCP sockets.
- Add MPTCP APIs for querying last time packets were received/sent/acked and whether MPTCP "upgrade" succeeded on a TCP socket.
- Add intra-node communication shortcut to improve SMC performance.
- Add IPv6 (and IPv{4,6}-over-IPv{4,6}) support to the GTP protocol driver.
- Add HSR-SAN (RedBOX) mode of operation to the HSR protocol driver.
- Add reset reasons for tracing what caused a TCP reset to be sent.
- Introduce direction attribute for xfrm (IPSec) states. State can be used either for input or output packet processing.
Things we sprinkled into general kernel code:
- Add bitmap_{read,write}(), bitmap_size(), expose BYTES_TO_BITS().
This required touch-ups and renaming of a few existing users.
- Add Endian-dependent __counted_by_{le,be} annotations.
- Make building selftests "quieter" by printing summaries like "CC object.o" rather than full commands with all the arguments.
Netfilter:
- Use GFP_KERNEL to clone elements, to deal better with OOM situations and avoid failures in the .commit step.
BPF:
- Add eBPF JIT for ARCv2 CPUs.
- Support attaching kprobe BPF programs through kprobe_multi link in a session mode, meaning, a BPF program is attached to both function entry and return, the entry program can decide if the return program gets executed and the entry program can share u64 cookie value with return program. "Session mode" is a common use-case for tetragon and bpftrace.
- Add the ability to specify and retrieve BPF cookie for raw tracepoint programs in order to ease migration from classic to raw tracepoints.
- Add an internal-only BPF per-CPU instruction for resolving per-CPU memory addresses and implement support in x86, ARM64 and RISC-V JITs. This allows inlining functions which need to access per-CPU state.
- Optimize x86 BPF JIT's emit_mov_imm64, and add support for various atomics in bpf_arena which can be JITed as a single x86 instruction. Support BPF arena on ARM64.
- Add a new bpf_wq API for deferring events and refactor process-context bpf_timer code to keep common code where possible.
- Harden the BPF verifier's and/or/xor value tracking.
- Introduce crypto kfuncs to let BPF programs call kernel crypto APIs.
- Support bpf_tail_call_static() helper for BPF programs with GCC 13.
- Add bpf_preempt_{disable,enable}() kfuncs in order to allow a BPF program to have code sections where preemption is disabled.
Driver API:
- Skip software TC processing completely if all installed rules are marked as HW-only, instead of checking the HW-only flag rule by rule.
- Add support for configuring PoE (Power over Ethernet), similar to the already existing support for PoDL (Power over Data Line) config.
- Initial bits of a queue control API, for now allowing a single queue to be reset without disturbing packet flow to other queues.
- Common (ethtool) statistics for hardware timestamping.
Tests and tooling:
- Remove the need to create a config file to run the net forwarding tests so that a naive "make run_tests" can exercise them.
- Define a method of writing tests which require an external endpoint to communicate with (to send/receive data towards the test machine). Add a few such tests.
- Create a shared code library for writing Python tests. Expose the YAML Netlink library from tools/ to the tests for easy Netlink access.
- Move netfilter tests under net/, extend them, separate performance tests from correctness tests, and iron out issues found by running them "on every commit".
- Refactor BPF selftests to use common network helpers.
- Further work filling in YAML definitions of Netlink messages for: nftables, team driver, bonding interfaces, vlan interfaces, VF info, TC u32 mark, TC police action.
- Teach Python YAML Netlink to decode attribute policies.
- Extend the definition of the "indexed array" construct in the specs to cover arrays of scalars rather than just nests.
- Add hyperlinks between definitions in generated Netlink docs.
Drivers:
- Make sure unsupported flower control flags are rejected by drivers, and make more drivers report errors directly to the application rather than dmesg (large number of driver changes from Asbjørn Sloth Tønnesen).
- Ethernet high-speed NICs: - Broadcom (bnxt): - support multiple RSS contexts and steering traffic to them - support XDP metadata - make page pool allocations more NUMA aware - Intel (100G, ice, idpf): - extract datapath code common among Intel drivers into a library - use fewer resources in switchdev by sharing queues with the PF - add PFCP filter support - add Ethernet filter support - use a spinlock instead of HW lock in PTP clock ops - support 5 layer Tx scheduler topology - nVidia/Mellanox: - 800G link modes and 100G SerDes speeds - per-queue IRQ coalescing configuration - Marvell Octeon: - support offloading TC packet mark action
- Ethernet NICs consumer, embedded and virtual: - stop lying about skb->truesize in USB Ethernet drivers, it messes up TCP memory calculations - Google cloud vNIC: - support changing ring size via ethtool - support ring reset using the queue control API - VirtIO net: - expose flow hash from RSS to XDP - per-queue statistics - add selftests - Synopsys (stmmac): - support controllers which require an RX clock signal from the MII bus to perform their hardware initialization - TI: - icssg_prueth: support ICSSG-based Ethernet on AM65x SR1.0 devices - icssg_prueth: add SW TX / RX Coalescing based on hrtimers - cpsw: minimal XDP support - Renesas (ravb): - support describing the MDIO bus - Realtek (r8169): - add support for RTL8168M - Microchip Sparx5: - matchall and flower actions mirred and redirect
- Ethernet switches: - nVidia/Mellanox: - improve events processing performance - Marvell: - add support for MV88E6250 family internal PHYs - Microchip: - add DCB and DSCP mapping support for KSZ switches - vsc73xx: convert to PHYLINK - Realtek: - rtl8226b/rtl8221b: add C45 instances and SerDes switching
- Many driver changes related to PHYLIB and PHYLINK deprecated API cleanup
- Ethernet PHYs: - Add a new driver for Airoha EN8811H 2.5 Gigabit PHY. - micrel: lan8814: add support for PPS out and external timestamp trigger
- WiFi: - Disable Wireless Extensions (WEXT) in all Wi-Fi 7 devices drivers. Modern devices can only be configured using nl80211. - mac80211/cfg80211 - handle color change per link for WiFi 7 Multi-Link Operation - Intel (iwlwifi): - don't support puncturing in 5 GHz - support monitor mode on passive channels - BZ-W device support - P2P with HE/EHT support - re-add support for firmware API 90 - provide channel survey information for Automatic Channel Selection - MediaTek (mt76): - mt7921 LED control - mt7925 EHT radiotap support - mt7920e PCI support - Qualcomm (ath11k): - P2P support for QCA6390, WCN6855 and QCA2066 - support hibernation - ieee80211-freq-limit Device Tree property support - Qualcomm (ath12k): - refactoring in preparation of multi-link support - suspend and hibernation support - ACPI support - debugfs support, including dfs_simulate_radar support - RealTek: - rtw88: RTL8723CS SDIO device support - rtw89: RTL8922AE Wi-Fi 7 PCI device support - rtw89: complete features of new WiFi 7 chip 8922AE including BT-coexistence and Wake-on-WLAN - rtw89: use BIOS ACPI settings to set TX power and channels - rtl8xxxu: enable Management Frame Protection (MFP) support
- Bluetooth: - support for Intel BlazarI and Filmore Peak2 (BE201) - support for MediaTek MT7921S SDIO - initial support for Intel PCIe BT driver - remove HCI_AMP support"
* tag 'net-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1827 commits) selftests: netfilter: fix packetdrill conntrack testcase net: gro: fix napi_gro_cb zeroed alignment Bluetooth: btintel_pcie: Refactor and code cleanup Bluetooth: btintel_pcie: Fix warning reported by sparse Bluetooth: hci_core: Fix not handling hdev->le_num_of_adv_sets=1 Bluetooth: btintel: Fix compiler warning for multi_v7_defconfig config Bluetooth: btintel_pcie: Fix compiler warnings Bluetooth: btintel_pcie: Add *setup* function to download firmware Bluetooth: btintel_pcie: Add support for PCIe transport Bluetooth: btintel: Export few static functions Bluetooth: HCI: Remove HCI_AMP support Bluetooth: L2CAP: Fix div-by-zero in l2cap_le_flowctl_init() Bluetooth: qca: Fix error code in qca_read_fw_build_info() Bluetooth: hci_conn: Use __counted_by() and avoid -Wfamnae warning Bluetooth: btintel: Add support for Filmore Peak2 (BE201) Bluetooth: btintel: Add support for BlazarI LE Create Connection command timeout increased to 20 secs dt-bindings: net: bluetooth: Add MediaTek MT7921S SDIO Bluetooth Bluetooth: compute LE flow credits based on recvbuf space Bluetooth: hci_sync: Use cmd->num_cis instead of magic number ...
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#
6e62702f |
| 14-May-2024 |
Jakub Kicinski <kuba@kernel.org> |
Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:
==================== pull-request: bpf-next 2024-05-13
We've added 119 non-merge commit
Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:
==================== pull-request: bpf-next 2024-05-13
We've added 119 non-merge commits during the last 14 day(s) which contain a total of 134 files changed, 9462 insertions(+), 4742 deletions(-).
The main changes are:
1) Add BPF JIT support for 32-bit ARCv2 processors, from Shahab Vahedi.
2) Add BPF range computation improvements to the verifier in particular around XOR and OR operators, refactoring of checks for range computation and relaxing MUL range computation so that src_reg can also be an unknown scalar, from Cupertino Miranda.
3) Add support to attach kprobe BPF programs through kprobe_multi link in a session mode, meaning, a BPF program is attached to both function entry and return, the entry program can decide if the return program gets executed and the entry program can share u64 cookie value with return program. Session mode is a common use-case for tetragon and bpftrace, from Jiri Olsa.
4) Fix a potential overflow in libbpf's ring__consume_n() and improve libbpf as well as BPF selftest's struct_ops handling, from Andrii Nakryiko.
5) Improvements to BPF selftests in context of BPF gcc backend, from Jose E. Marchesi & David Faust.
6) Migrate remaining BPF selftest tests from test_sock_addr.c to prog_test- -style in order to retire the old test, run it in BPF CI and additionally expand test coverage, from Jordan Rife.
7) Big batch for BPF selftest refactoring in order to remove duplicate code around common network helpers, from Geliang Tang.
8) Another batch of improvements to BPF selftests to retire obsolete bpf_tcp_helpers.h as everything is available vmlinux.h, from Martin KaFai Lau.
9) Fix BPF map tear-down to not walk the map twice on free when both timer and wq is used, from Benjamin Tissoires.
10) Fix BPF verifier assumptions about socket->sk that it can be non-NULL, from Alexei Starovoitov.
11) Change BTF build scripts to using --btf_features for pahole v1.26+, from Alan Maguire.
12) Small improvements to BPF reusing struct_size() and krealloc_array(), from Andy Shevchenko.
13) Fix s390 JIT to emit a barrier for BPF_FETCH instructions, from Ilya Leoshkevich.
14) Extend TCP ->cong_control() callback in order to feed in ack and flag parameters and allow write-access to tp->snd_cwnd_stamp from BPF program, from Miao Xu.
15) Add support for internal-only per-CPU instructions to inline bpf_get_smp_processor_id() helper call for arm64 and riscv64 BPF JITs, from Puranjay Mohan.
16) Follow-up to remove the redundant ethtool.h from tooling infrastructure, from Tushar Vyavahare.
17) Extend libbpf to support "module:<function>" syntax for tracing programs, from Viktor Malik.
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (119 commits) bpf: make list_for_each_entry portable bpf: ignore expected GCC warning in test_global_func10.c bpf: disable strict aliasing in test_global_func9.c selftests/bpf: Free strdup memory in xdp_hw_metadata selftests/bpf: Fix a few tests for GCC related warnings. bpf: avoid gcc overflow warning in test_xdp_vlan.c tools: remove redundant ethtool.h from tooling infra selftests/bpf: Expand ATTACH_REJECT tests selftests/bpf: Expand getsockname and getpeername tests sefltests/bpf: Expand sockaddr hook deny tests selftests/bpf: Expand sockaddr program return value tests selftests/bpf: Retire test_sock_addr.(c|sh) selftests/bpf: Remove redundant sendmsg test cases selftests/bpf: Migrate ATTACH_REJECT test cases selftests/bpf: Migrate expected_attach_type tests selftests/bpf: Migrate wildcard destination rewrite test selftests/bpf: Migrate sendmsg6 v4 mapped address tests selftests/bpf: Migrate sendmsg deny test cases selftests/bpf: Migrate WILDCARD_IP test selftests/bpf: Handle SYSCALL_EPERM and SYSCALL_ENOTSUPP test cases ... ====================
Link: https://lore.kernel.org/r/20240513134114.17575-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Revision tags: v6.9, v6.9-rc7 |
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#
06ebfd11 |
| 30-Apr-2024 |
Andrii Nakryiko <andrii@kernel.org> |
Merge branch 'bpf-introduce-kprobe_multi-session-attach'
Jiri Olsa says:
==================== bpf: Introduce kprobe_multi session attach
hi, adding support to attach kprobe program through kprobe_
Merge branch 'bpf-introduce-kprobe_multi-session-attach'
Jiri Olsa says:
==================== bpf: Introduce kprobe_multi session attach
hi, adding support to attach kprobe program through kprobe_multi link in a session mode, which means: - program is attached to both function entry and return - entry program can decided if the return program gets executed - entry program can share u64 cookie value with return program
The initial RFC for this was posted in [0] and later discussed more and which ended up with the session idea [1]
Having entry together with return probe for given function is common use case for tetragon, bpftrace and most likely for others.
At the moment if we want both entry and return probe to execute bpf program we need to create two (entry and return probe) links. The link for return probe creates extra entry probe to setup the return probe. The extra entry probe execution could be omitted if we had a way to use just single link for both entry and exit probe.
In addition the possibility to control the return program execution and sharing data within entry and return probe allows for other use cases.
v2 changes: - renamed BPF_TRACE_KPROBE_MULTI_SESSION to BPF_TRACE_KPROBE_SESSION [Andrii] - use arrays for results in selftest [Andrii] - various small selftests and libbpf changes [Andrii] - moved the verifier cookie setup earlier in check_kfunc_call [Andrii] - added acks
Also available at: https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git bpf/session_data
thanks, jirka
[0] https://lore.kernel.org/bpf/20240207153550.856536-1-jolsa@kernel.org/ [1] https://lore.kernel.org/bpf/20240228090242.4040210-1-jolsa@kernel.org/ --- ====================
Link: https://lore.kernel.org/r/20240430112830.1184228-1-jolsa@kernel.org Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
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#
a3a51133 |
| 30-Apr-2024 |
Jiri Olsa <jolsa@kernel.org> |
selftests/bpf: Add kprobe session cookie test
Adding kprobe session test that verifies the cookie value get properly propagated from entry to return program.
Signed-off-by: Jiri Olsa <jolsa@kernel.
selftests/bpf: Add kprobe session cookie test
Adding kprobe session test that verifies the cookie value get properly propagated from entry to return program.
Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20240430112830.1184228-8-jolsa@kernel.org
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#
0983b169 |
| 30-Apr-2024 |
Jiri Olsa <jolsa@kernel.org> |
selftests/bpf: Add kprobe session test
Adding kprobe session test and testing that the entry program return value controls execution of the return probe program.
Signed-off-by: Jiri Olsa <jolsa@ker
selftests/bpf: Add kprobe session test
Adding kprobe session test and testing that the entry program return value controls execution of the return probe program.
Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20240430112830.1184228-7-jolsa@kernel.org
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Revision tags: v6.9-rc6, v6.9-rc5, v6.9-rc4 |
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#
79790b68 |
| 12-Apr-2024 |
Thomas Hellström <thomas.hellstrom@linux.intel.com> |
Merge drm/drm-next into drm-xe-next
Backmerging drm-next in order to get up-to-date and in particular to access commit 9ca5facd0400f610f3f7f71aeb7fc0b949a48c67.
Signed-off-by: Thomas Hellström <tho
Merge drm/drm-next into drm-xe-next
Backmerging drm-next in order to get up-to-date and in particular to access commit 9ca5facd0400f610f3f7f71aeb7fc0b949a48c67.
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
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#
3e5a516f |
| 08-Apr-2024 |
Dmitry Baryshkov <dmitry.baryshkov@linaro.org> |
Merge tag 'phy_dp_modes_6.10' into msm-next-lumag
Merge DisplayPort subnode API in order to allow DisplayPort driver to configure the PHYs either to the DP or eDP mode, depending on hardware configu
Merge tag 'phy_dp_modes_6.10' into msm-next-lumag
Merge DisplayPort subnode API in order to allow DisplayPort driver to configure the PHYs either to the DP or eDP mode, depending on hardware configuration.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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Revision tags: v6.9-rc3 |
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#
5add703f |
| 02-Apr-2024 |
Rodrigo Vivi <rodrigo.vivi@intel.com> |
Merge drm/drm-next into drm-intel-next
Catching up on 6.9-rc2
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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#
0d21364c |
| 02-Apr-2024 |
Thomas Zimmermann <tzimmermann@suse.de> |
Merge drm/drm-next into drm-misc-next
Backmerging to get v6.9-rc2 changes into drm-misc-next.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
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Revision tags: v6.9-rc2 |
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#
b7e1e969 |
| 26-Mar-2024 |
Takashi Iwai <tiwai@suse.de> |
Merge branch 'topic/sound-devel-6.10' into for-next
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Revision tags: v6.9-rc1, v6.8, v6.8-rc7 |
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#
06d07429 |
| 29-Feb-2024 |
Jani Nikula <jani.nikula@intel.com> |
Merge drm/drm-next into drm-intel-next
Sync to get the drm_printer changes to drm-intel-next.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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#
f4566a1e |
| 25-Mar-2024 |
Ingo Molnar <mingo@kernel.org> |
Merge tag 'v6.9-rc1' into sched/core, to pick up fixes and to refresh the branch
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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#
100c8542 |
| 05-Apr-2024 |
Takashi Iwai <tiwai@suse.de> |
Merge tag 'asoc-fix-v6.9-rc2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.9
A relatively large set of fixes here, the biggest piece of it is a
Merge tag 'asoc-fix-v6.9-rc2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.9
A relatively large set of fixes here, the biggest piece of it is a series correcting some problems with the delay reporting for Intel SOF cards but there's a bunch of other things. Everything here is driver specific except for a fix in the core for an issue with sign extension handling volume controls.
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#
36a1818f |
| 25-Mar-2024 |
Thomas Zimmermann <tzimmermann@suse.de> |
Merge drm/drm-fixes into drm-misc-fixes
Backmerging to get drm-misc-fixes to the state of v6.9-rc1.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
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Revision tags: v6.8-rc6, v6.8-rc5 |
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#
41c177cf |
| 11-Feb-2024 |
Rob Clark <robdclark@chromium.org> |
Merge tag 'drm-misc-next-2024-02-08' into msm-next
Merge the drm-misc tree to uprev MSM CI.
Signed-off-by: Rob Clark <robdclark@chromium.org>
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Revision tags: v6.8-rc4, v6.8-rc3 |
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#
4db102dc |
| 29-Jan-2024 |
Maxime Ripard <mripard@kernel.org> |
Merge drm/drm-next into drm-misc-next
Kickstart 6.9 development cycle.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
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Revision tags: v6.8-rc2 |
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#
be3382ec |
| 23-Jan-2024 |
Lucas De Marchi <lucas.demarchi@intel.com> |
Merge drm/drm-next into drm-xe-next
Sync to v6.8-rc1.
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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Revision tags: v6.8-rc1 |
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#
0ea5c948 |
| 15-Jan-2024 |
Jani Nikula <jani.nikula@intel.com> |
Merge drm/drm-next into drm-intel-next
Backmerge to bring Xe driver to drm-intel-next.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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#
9187210e |
| 13-Mar-2024 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'net-next-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski: "Core & protocols:
- Large effort by Eric to lower rtnl_lo
Merge tag 'net-next-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski: "Core & protocols:
- Large effort by Eric to lower rtnl_lock pressure and remove locks:
- Make commonly used parts of rtnetlink (address, route dumps etc) lockless, protected by RCU instead of rtnl_lock.
- Add a netns exit callback which already holds rtnl_lock, allowing netns exit to take rtnl_lock once in the core instead of once for each driver / callback.
- Remove locks / serialization in the socket diag interface.
- Remove 6 calls to synchronize_rcu() while holding rtnl_lock.
- Remove the dev_base_lock, depend on RCU where necessary.
- Support busy polling on a per-epoll context basis. Poll length and budget parameters can be set independently of system defaults.
- Introduce struct net_hotdata, to make sure read-mostly global config variables fit in as few cache lines as possible.
- Add optional per-nexthop statistics to ease monitoring / debug of ECMP imbalance problems.
- Support TCP_NOTSENT_LOWAT in MPTCP.
- Ensure that IPv6 temporary addresses' preferred lifetimes are long enough, compared to other configured lifetimes, and at least 2 sec.
- Support forwarding of ICMP Error messages in IPSec, per RFC 4301.
- Add support for the independent control state machine for bonding per IEEE 802.1AX-2008 5.4.15 in addition to the existing coupled control state machine.
- Add "network ID" to MCTP socket APIs to support hosts with multiple disjoint MCTP networks.
- Re-use the mono_delivery_time skbuff bit for packets which user space wants to be sent at a specified time. Maintain the timing information while traversing veth links, bridge etc.
- Take advantage of MSG_SPLICE_PAGES for RxRPC DATA and ACK packets.
- Simplify many places iterating over netdevs by using an xarray instead of a hash table walk (hash table remains in place, for use on fastpaths).
- Speed up scanning for expired routes by keeping a dedicated list.
- Speed up "generic" XDP by trying harder to avoid large allocations.
- Support attaching arbitrary metadata to netconsole messages.
Things we sprinkled into general kernel code:
- Enforce VM_IOREMAP flag and range in ioremap_page_range and introduce VM_SPARSE kind and vm_area_[un]map_pages (used by bpf_arena).
- Rework selftest harness to enable the use of the full range of ksft exit code (pass, fail, skip, xfail, xpass).
Netfilter:
- Allow userspace to define a table that is exclusively owned by a daemon (via netlink socket aliveness) without auto-removing this table when the userspace program exits. Such table gets marked as orphaned and a restarting management daemon can re-attach/regain ownership.
- Speed up element insertions to nftables' concatenated-ranges set type. Compact a few related data structures.
BPF:
- Add BPF token support for delegating a subset of BPF subsystem functionality from privileged system-wide daemons such as systemd through special mount options for userns-bound BPF fs to a trusted & unprivileged application.
- Introduce bpf_arena which is sparse shared memory region between BPF program and user space where structures inside the arena can have pointers to other areas of the arena, and pointers work seamlessly for both user-space programs and BPF programs.
- Introduce may_goto instruction that is a contract between the verifier and the program. The verifier allows the program to loop assuming it's behaving well, but reserves the right to terminate it.
- Extend the BPF verifier to enable static subprog calls in spin lock critical sections.
- Support registration of struct_ops types from modules which helps projects like fuse-bpf that seeks to implement a new struct_ops type.
- Add support for retrieval of cookies for perf/kprobe multi links.
- Support arbitrary TCP SYN cookie generation / validation in the TC layer with BPF to allow creating SYN flood handling in BPF firewalls.
- Add code generation to inline the bpf_kptr_xchg() helper which improves performance when stashing/popping the allocated BPF objects.
Wireless:
- Add SPP (signaling and payload protected) AMSDU support.
- Support wider bandwidth OFDMA, as required for EHT operation.
Driver API:
- Major overhaul of the Energy Efficient Ethernet internals to support new link modes (2.5GE, 5GE), share more code between drivers (especially those using phylib), and encourage more uniform behavior. Convert and clean up drivers.
- Define an API for querying per netdev queue statistics from drivers.
- IPSec: account in global stats for fully offloaded sessions.
- Create a concept of Ethernet PHY Packages at the Device Tree level, to allow parameterizing the existing PHY package code.
- Enable Rx hashing (RSS) on GTP protocol fields.
Misc:
- Improvements and refactoring all over networking selftests.
- Create uniform module aliases for TC classifiers, actions, and packet schedulers to simplify creating modprobe policies.
- Address all missing MODULE_DESCRIPTION() warnings in networking.
- Extend the Netlink descriptions in YAML to cover message encapsulation or "Netlink polymorphism", where interpretation of nested attributes depends on link type, classifier type or some other "class type".
Drivers:
- Ethernet high-speed NICs: - Add a new driver for Marvell's Octeon PCI Endpoint NIC VF. - Intel (100G, ice, idpf): - support E825-C devices - nVidia/Mellanox: - support devices with one port and multiple PCIe links - Broadcom (bnxt): - support n-tuple filters - support configuring the RSS key - Wangxun (ngbe/txgbe): - implement irq_domain for TXGBE's sub-interrupts - Pensando/AMD: - support XDP - optimize queue submission and wakeup handling (+17% bps) - optimize struct layout, saving 28% of memory on queues
- Ethernet NICs embedded and virtual: - Google cloud vNIC: - refactor driver to perform memory allocations for new queue config before stopping and freeing the old queue memory - Synopsys (stmmac): - obey queueMaxSDU and implement counters required by 802.1Qbv - Renesas (ravb): - support packet checksum offload - suspend to RAM and runtime PM support
- Ethernet switches: - nVidia/Mellanox: - support for nexthop group statistics - Microchip: - ksz8: implement PHY loopback - add support for KSZ8567, a 7-port 10/100Mbps switch
- PTP: - New driver for RENESAS FemtoClock3 Wireless clock generator. - Support OCP PTP cards designed and built by Adva.
- CAN: - Support recvmsg() flags for own, local and remote traffic on CAN BCM sockets. - Support for esd GmbH PCIe/402 CAN device family. - m_can: - Rx/Tx submission coalescing - wake on frame Rx
- WiFi: - Intel (iwlwifi): - enable signaling and payload protected A-MSDUs - support wider-bandwidth OFDMA - support for new devices - bump FW API to 89 for AX devices; 90 for BZ/SC devices - MediaTek (mt76): - mt7915: newer ADIE version support - mt7925: radio temperature sensor support - Qualcomm (ath11k): - support 6 GHz station power modes: Low Power Indoor (LPI), Standard Power) SP and Very Low Power (VLP) - QCA6390 & WCN6855: support 2 concurrent station interfaces - QCA2066 support - Qualcomm (ath12k): - refactoring in preparation for Multi-Link Operation (MLO) support - 1024 Block Ack window size support - firmware-2.bin support - support having multiple identical PCI devices (firmware needs to have ATH12K_FW_FEATURE_MULTI_QRTR_ID) - QCN9274: support split-PHY devices - WCN7850: enable Power Save Mode in station mode - WCN7850: P2P support - RealTek: - rtw88: support for more rtw8811cu and rtw8821cu devices - rtw89: support SCAN_RANDOM_SN and SET_SCAN_DWELL - rtlwifi: speed up USB firmware initialization - rtwl8xxxu: - RTL8188F: concurrent interface support - Channel Switch Announcement (CSA) support in AP mode - Broadcom (brcmfmac): - per-vendor feature support - per-vendor SAE password setup - DMI nvram filename quirk for ACEPC W5 Pro"
* tag 'net-next-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2255 commits) nexthop: Fix splat with CONFIG_DEBUG_PREEMPT=y nexthop: Fix out-of-bounds access during attribute validation nexthop: Only parse NHA_OP_FLAGS for dump messages that require it nexthop: Only parse NHA_OP_FLAGS for get messages that require it bpf: move sleepable flag from bpf_prog_aux to bpf_prog bpf: hardcode BPF_PROG_PACK_SIZE to 2MB * num_possible_nodes() selftests/bpf: Add kprobe multi triggering benchmarks ptp: Move from simple ida to xarray vxlan: Remove generic .ndo_get_stats64 vxlan: Do not alloc tstats manually devlink: Add comments to use netlink gen tool nfp: flower: handle acti_netdevs allocation failure net/packet: Add getsockopt support for PACKET_COPY_THRESH net/netlink: Add getsockopt support for NETLINK_LISTEN_ALL_NSID selftests/bpf: Add bpf_arena_htab test. selftests/bpf: Add bpf_arena_list test. selftests/bpf: Add unit tests for bpf_arena_alloc/free_pages bpf: Add helper macro bpf_addr_space_cast() libbpf: Recognize __arena global variables. bpftool: Recognize arena map type ...
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4b2765ae |
| 03-Mar-2024 |
Jakub Kicinski <kuba@kernel.org> |
Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:
==================== pull-request: bpf-next 2024-02-29
We've added 119 non-merge commit
Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:
==================== pull-request: bpf-next 2024-02-29
We've added 119 non-merge commits during the last 32 day(s) which contain a total of 150 files changed, 3589 insertions(+), 995 deletions(-).
The main changes are:
1) Extend the BPF verifier to enable static subprog calls in spin lock critical sections, from Kumar Kartikeya Dwivedi.
2) Fix confusing and incorrect inference of PTR_TO_CTX argument type in BPF global subprogs, from Andrii Nakryiko.
3) Larger batch of riscv BPF JIT improvements and enabling inlining of the bpf_kptr_xchg() for RV64, from Pu Lehui.
4) Allow skeleton users to change the values of the fields in struct_ops maps at runtime, from Kui-Feng Lee.
5) Extend the verifier's capabilities of tracking scalars when they are spilled to stack, especially when the spill or fill is narrowing, from Maxim Mikityanskiy & Eduard Zingerman.
6) Various BPF selftest improvements to fix errors under gcc BPF backend, from Jose E. Marchesi.
7) Avoid module loading failure when the module trying to register a struct_ops has its BTF section stripped, from Geliang Tang.
8) Annotate all kfuncs in .BTF_ids section which eventually allows for automatic kfunc prototype generation from bpftool, from Daniel Xu.
9) Several updates to the instruction-set.rst IETF standardization document, from Dave Thaler.
10) Shrink the size of struct bpf_map resp. bpf_array, from Alexei Starovoitov.
11) Initial small subset of BPF verifier prepwork for sleepable bpf_timer, from Benjamin Tissoires.
12) Fix bpftool to be more portable to musl libc by using POSIX's basename(), from Arnaldo Carvalho de Melo.
13) Add libbpf support to gcc in CORE macro definitions, from Cupertino Miranda.
14) Remove a duplicate type check in perf_event_bpf_event, from Florian Lehner.
15) Fix bpf_spin_{un,}lock BPF helpers to actually annotate them with notrace correctly, from Yonghong Song.
16) Replace the deprecated bpf_lpm_trie_key 0-length array with flexible array to fix build warnings, from Kees Cook.
17) Fix resolve_btfids cross-compilation to non host-native endianness, from Viktor Malik.
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (119 commits) selftests/bpf: Test if shadow types work correctly. bpftool: Add an example for struct_ops map and shadow type. bpftool: Generated shadow variables for struct_ops maps. libbpf: Convert st_ops->data to shadow type. libbpf: Set btf_value_type_id of struct bpf_map for struct_ops. bpf: Replace bpf_lpm_trie_key 0-length array with flexible array bpf, arm64: use bpf_prog_pack for memory management arm64: patching: implement text_poke API bpf, arm64: support exceptions arm64: stacktrace: Implement arch_bpf_stack_walk() for the BPF JIT bpf: add is_async_callback_calling_insn() helper bpf: introduce in_sleepable() helper bpf: allow more maps in sleepable bpf programs selftests/bpf: Test case for lacking CFI stub functions. bpf: Check cfi_stubs before registering a struct_ops type. bpf: Clarify batch lookup/lookup_and_delete semantics bpf, docs: specify which BPF_ABS and BPF_IND fields were zero bpf, docs: Fix typos in instruction-set.rst selftests/bpf: update tcp_custom_syncookie to use scalar packet offset bpf: Shrink size of struct bpf_map/bpf_array. ... ====================
Link: https://lore.kernel.org/r/20240301001625.8800-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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03c11eb3 |
| 14-Feb-2024 |
Ingo Molnar <mingo@kernel.org> |
Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branch
Conflicts: arch/x86/include/asm/percpu.h arch/x86/include/asm/text-patching.h
Signed-off-by: Ingo Molnar <mingo@k
Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branch
Conflicts: arch/x86/include/asm/percpu.h arch/x86/include/asm/text-patching.h
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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c7dcb6c9 |
| 06-Feb-2024 |
Andrii Nakryiko <andrii@kernel.org> |
selftests/bpf: mark dynptr kfuncs __weak to make them optional on old kernels
Mark dynptr kfuncs as __weak to allow verifier_global_subprogs/arg_ctx_{perf,kprobe,raw_tp} subtests to be loadable on o
selftests/bpf: mark dynptr kfuncs __weak to make them optional on old kernels
Mark dynptr kfuncs as __weak to allow verifier_global_subprogs/arg_ctx_{perf,kprobe,raw_tp} subtests to be loadable on old kernels. Because bpf_dynptr_from_xdp() kfunc is used from arg_tag_dynptr BPF program in progs/verifier_global_subprogs.c *and* is not marked as __weak, loading any subtest from verifier_global_subprogs fails on old kernels that don't have bpf_dynptr_from_xdp() kfunc defined. Even if arg_tag_dynptr program itself is not loaded, libbpf bails out on non-weak reference to bpf_dynptr_from_xdp (that can't be resolved), which shared across all programs in progs/verifier_global_subprogs.c.
So mark all dynptr-related kfuncs as __weak to unblock libbpf CI ([0]). In the upcoming "kfunc in vmlinux.h" work we should make sure that kfuncs are always declared __weak as well.
[0] https://github.com/libbpf/libbpf/actions/runs/7792673215/job/21251250831?pr=776#step:4:7961
Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20240206004008.1541513-1-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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e4009250 |
| 31-Jan-2024 |
Martin KaFai Lau <martin.lau@kernel.org> |
Merge branch 'libbpf: add bpf_core_cast() helper'
Andrii Nakryiko says:
==================== Add bpf_core_cast(<ptr>, <type>) macro wrapper around bpf_rdonly_cast() kfunc to make it easier to use t
Merge branch 'libbpf: add bpf_core_cast() helper'
Andrii Nakryiko says:
==================== Add bpf_core_cast(<ptr>, <type>) macro wrapper around bpf_rdonly_cast() kfunc to make it easier to use this functionality in BPF code. See patch #2 for BPF selftests conversions demonstrating improvements in code succinctness. ====================
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
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20d59ee5 |
| 30-Jan-2024 |
Andrii Nakryiko <andrii@kernel.org> |
libbpf: add bpf_core_cast() macro
Add bpf_core_cast() macro that wraps bpf_rdonly_cast() kfunc. It's more ergonomic than kfunc, as it automatically extracts btf_id with bpf_core_type_id_kernel(), an
libbpf: add bpf_core_cast() macro
Add bpf_core_cast() macro that wraps bpf_rdonly_cast() kfunc. It's more ergonomic than kfunc, as it automatically extracts btf_id with bpf_core_type_id_kernel(), and works with type names. It also casts result to (T *) pointer. See the definition of the macro, it's self-explanatory.
libbpf declares bpf_rdonly_cast() extern as __weak __ksym and should be safe to not conflict with other possible declarations in user code.
But we do have a conflict with current BPF selftests that declare their externs with first argument as `void *obj`, while libbpf opts into more permissive `const void *obj`. This causes conflict, so we fix up BPF selftests uses in the same patch.
Acked-by: Eduard Zingerman <eddyz87@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20240130212023.183765-2-andrii@kernel.org Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
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