- 04 Dec, 2023 7 commits
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Jakub Kicinski authored
Heiko Stuebner says: ==================== net: phy: micrel: additional clock handling Some Micrel phys define a specific rmii-ref clock (added in 2014) while the generic phy binding specifies an unnamed clock for ethernet phys. This allows Micrel phys to use both, so as to keep the phys not using the named rmii-ref clock to conform to the generic binding while allowing them to enable a supplying clock, when the phy is not supplied by a dedicated oscillator. ==================== Link: https://lore.kernel.org/r/20231201150131.326766-1-heiko@sntech.deSigned-off-by:
Jakub Kicinski <kuba@kernel.org>
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Heiko Stuebner authored
The generic ethernet-phy binding allows describing an external clock since commit 350b7a25 ("dt-bindings: net: phy: Document support for external PHY clk") for cases where the phy is not supplied by an oscillator but instead by a clock from the host system. And the old named "rmii-ref" clock from 2014 is only specified for phys of the KSZ8021, KSZ8031, KSZ8081, KSZ8091 types. So allow retrieving and enabling the optional generic clock on phys that do not provide a rmii-ref clock. Signed-off-by:
Heiko Stuebner <heiko.stuebner@cherry.de> Reviewed-by:
Florian Fainelli <florian.fainelli@broadcom.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20231201150131.326766-3-heiko@sntech.deSigned-off-by:
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Heiko Stuebner authored
While the external clock input will most likely be enabled, it's not guaranteed and clk_get_rate in some suppliers will even just return valid results when the clock is running. So use devm_clk_get_optional_enabled to retrieve and enable the clock in one go. Signed-off-by:
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Jiri Pirko authored
In case NLMSG_DONE message is sent as a reply to doit action, multiple kernel implementation do not send anything else than struct nlmsghdr. Add this note to the Netlink intro documentation. Signed-off-by:
Jiri Pirko <jiri@nvidia.com> Reviewed-by:
Bagas Sanjaya <bagasdotme@gmail.com> Link: https://lore.kernel.org/r/20231201180154.864007-1-jiri@resnulli.usSigned-off-by:
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David S. Miller authored
Suman Ghosh says: ==================== octeontx2: Multicast/mirror offload changes This patchset includes changes to support TC multicast/mirror offload. Patch #1: Adds changes to support new mailbox to offload multicast/mirror offload. Patch #2: Adds TC related changes which uses the newly added mailboxes to offload multicast/mirror rules. ==================== Signed-off-by:David S. Miller <davem@davemloft.net>
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Suman Ghosh authored
This patch extends TC flower offload support for mirroring ingress traffic to a different PF/VF. Below is an example command, 'tc filter add dev eth1 ingress protocol ip flower src_ip <ip-addr> skip_sw action mirred ingress mirror dev eth2' Signed-off-by:
Suman Ghosh <sumang@marvell.com> Reviewed-by:
Wojciech Drewek <wojciech.drewek@intel.com> Reviewed-by:
Simon Horman <horms@kernel.org> Signed-off-by:
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Suman Ghosh authored
A new mailbox is added to support offloading of multicast/mirror functionality. The mailbox also supports dynamic updation of the multicast/mirror list. Signed-off-by:
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- 02 Dec, 2023 11 commits
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David S. Miller authored
Coco Li says: ==================== Analyze and Reorganize core Networking Structs to optimize cacheline consumption Currently, variable-heavy structs in the networking stack is organized chronologically, logically and sometimes by cacheline access. This patch series attempts to reorganize the core networking stack variables to minimize cacheline consumption during the phase of data transfer. Specifically, we looked at the TCP/IP stack and the fast path definition in TCP. For documentation purposes, we also added new files for each core data structure we considered, although not all ended up being modified due to the amount of existing cacheline they span in the fast path. In the documentation, we recorded all variables we identified on the fast path and the reasons. We also hope that in the future when variables are added/modified, the document can be referred to and updated accordingly to reflect the latest variable organization. Tested: Our tests were run with neper tcp_rr using tcp traffic. The tests have $cpu number of threads and variable number of flows (see below). Tests were run on 6.5-rc1 Efficiency is computed as cpu seconds / throughput (one tcp_rr round trip). The following result shows efficiency delta before and after the patch series is applied. On AMD platforms with 100Gb/s NIC and 256Mb L3 cache: IPv4 Flows with patches clean kernel Percent reduction 30k 0.0001736538065 0.0002741191042 -36.65% 20k 0.0001583661752 0.0002712559158 -41.62% 10k 0.0001639148817 0.0002951800751 -44.47% 5k 0.0001859683866 0.0003320642536 -44.00% 1k 0.0002035190546 0.0003152056382 -35.43% IPv6 Flows with patches clean kernel Percent reduction 30k 0.000202535503 0.0003275329163 -38.16% 20k 0.0002020654777 0.0003411304786 -40.77% 10k 0.0002122427035 0.0003803674705 -44.20% 5k 0.0002348776729 0.0004030403953 -41.72% 1k 0.0002237384583 0.0002813646157 -20.48% On Intel platforms with 200Gb/s NIC and 105Mb L3 cache: IPv6 Flows with patches clean kernel Percent reduction 30k 0.0006296537873 0.0006370427753 -1.16% 20k 0.0003451029365 0.0003628016076 -4.88% 10k 0.0003187646958 0.0003346835645 -4.76% 5k 0.0002954676348 0.000311807592 -5.24% 1k 0.0001909169342 0.0001848069709 3.31% v8 changes: 1. Update net_device_read_txrx cache group maximum 2. Update MAINTAINERS for documentations 3. Skip __cache_group variables in scripts/kernel-doc ==================== Signed-off-by: -
Coco Li authored
Reorganize fast path variables on tx-txrx-rx order. Fastpath cacheline ends after sysctl_tcp_rmem. There are only read-only variables here. (write is on the control path and not considered in this case) Below data generated with pahole on x86 architecture. Fast path variables span cache lines before change: 4 Fast path variables span cache lines after change: 2 Suggested-by:
Eric Dumazet <edumazet@google.com> Reviewed-by:
Wei Wang <weiwan@google.com> Reviewed-by:
David Ahern <dsahern@kernel.org> Signed-off-by:
Coco Li <lixiaoyan@google.com> Reviewed-by:
Shakeel Butt <shakeelb@google.com> Signed-off-by:
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Coco Li authored
Set up build time warnings to safeguard against future header changes of organized structs. Warning includes: 1) whether all variables are still in the same cache group 2) whether all the cache groups have the sum of the members size (in the maximum condition, including all members defined in configs) The __cache_group* variables are ignored in kernel-doc check in the various header files they appear in to enforce the cache groups. Suggested-by:
Daniel Borkmann <daniel@iogearbox.net> Acked-by:
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Coco Li authored
Analyzed a few structs in the networking stack by looking at variables within them that are used in the TCP/IP fast path. Fast path is defined as TCP path where data is transferred from sender to receiver unidirectionally. It doesn't include phases other than TCP_ESTABLISHED, nor does it look at error paths. We hope to re-organizing variables that span many cachelines whose fast path variables are also spread out, and this document can help future developers keep networking fast path cachelines small. Optimized_cacheline field is computed as (Fastpath_Bytes/L3_cacheline_size_x86), and not the actual organized results (see patches to come for these). Investigation is done on 6.5 Name Struct_Cachelines Cur_fastpath_cache Fastpath_Bytes Optimized_cacheline tcp_sock 42 (2664 Bytes) 12 396 8 net_device 39 (2240 bytes) 12 234 4 inet_sock 15 (960 bytes) 14 922 14 Inet_connection_sock 22 (1368 bytes) 18 1166 18 Netns_ipv4 (sysctls) 12 (768 bytes) 4 77 2 linux_mib 16 (1060) 6 104 2 Note how there isn't much improvement space for inet_sock and Inet_connection_sock because sk and icsk_inet respectively takes up so much of the struct that rest of the variables become a small portion of the struct size. So, we decided to reorganize tcp_sock, net_device, netns_ipv4 Suggested-by:
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Yinjun Zhang authored
NFP always supports software time stamping of tx, now expose the capability through ethtool ops. Signed-off-by:
Yinjun Zhang <yinjun.zhang@corigine.com> Signed-off-by:
Louis Peens <louis.peens@corigine.com> Link: https://lore.kernel.org/r/20231129080413.83789-1-louis.peens@corigine.comSigned-off-by:
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Niklas Söderlund authored
When breaking out the Gen4 gPTP support to its own module the dependency on the PTP_1588_CLOCK framework was left as optional and only stated for the driver using the module. This leads to issues when doing COMPILE_TEST of RENESAS_GEN4_PTP separately and PTP_1588_CLOCK is built as a module and the other as a built-in. Add an explicit depend on PTP_1588_CLOCK. While at it remove the optional support for PTP_1588_CLOCK from RENESAS_ETHER_SWITCH as the driver unconditionally calls the Gen4 gPTP module and thus also requires the PTP_1588_CLOCK framework. Reported-by:
Arnd Bergmann <arnd@arndb.de> Fixes: 8c1c6623 ("net: ethernet: renesas: rcar_gen4_ptp: Break out to module") Signed-off-by:
Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by:
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Neil Armstrong authored
Document the IPA on the SM8650 Platform which uses version 5.5.1, which is a minor revision of v5.5 found on SM8550, thus we can use the SM8550 bindings as fallback since it shares the same register mappings. Signed-off-by:
Neil Armstrong <neil.armstrong@linaro.org> Reviewed-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20231129-topic-sm8650-upstream-bindings-ipa-v1-1-ca21eb2dfb14@linaro.orgSigned-off-by:
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Nithin Dabilpuram authored
This patch update the CQ structure fields to support the feature added in new silicons and also dump these fields in debugfs. Signed-off-by:
Nithin Dabilpuram <ndabilpuram@marvell.com> Signed-off-by:
Geetha sowjanya <gakula@marvell.com> Link: https://lore.kernel.org/r/20231130060703.16769-1-gakula@marvell.comSigned-off-by:
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Maxime Chevallier authored
Physical Layer Collision Avoidance messages are correctly documented but were left-out of the global list of ethnl messages, add them to the list. Signed-off-by:
Maxime Chevallier <maxime.chevallier@bootlin.com> Link: https://lore.kernel.org/r/20231130191400.817948-1-maxime.chevallier@bootlin.comSigned-off-by:
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Eric Dumazet authored
Use DO_ONCE_LITE_IF() and __cold attribute to put tcp_gro_dev_warn() out of line. This also allows the message to be printed again after a "echo 1 > /sys/kernel/debug/clear_warn_once" Also add a READ_ONCE() when reading device mtu, as it could be changed concurrently. Signed-off-by:
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Donald Hunter authored
The netlink-raw schema was not updated when bitfield32 was added to the genetlink-legacy schema. It is needed for rtnetlink families. s8 and s16 were also missing. Signed-off-by:
Donald Hunter <donald.hunter@gmail.com> Link: https://lore.kernel.org/r/20231130214959.27377-2-donald.hunter@gmail.comSigned-off-by:
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- 01 Dec, 2023 15 commits
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Shinas Rasheed authored
Set backpressure watermark for hardware RX queues. Backpressure gets triggered when the available buffers of a hardware RX queue falls below the set watermark. This backpressure will propagate to packet processing pipeline in the OCTEON card, so that the host receives fewer packets and prevents packet dropping at host. Signed-off-by:
Shinas Rasheed <srasheed@marvell.com> Signed-off-by:
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Dan Carpenter authored
Set the error code if octep_ctrl_net_get_mtu() fails. Currently the code returns success. Fixes: 0a5f8534 ("octeon_ep: get max rx packet length from firmware") Signed-off-by:
Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by:
Sathesh B Edara <sedara@marvell.com> Signed-off-by:
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Jakub Kicinski authored
Pedro Tammela says: ==================== selftests: tc-testing: more tdc updates Follow-up on a feedback from Jakub and random cleanups from related net/sched patches ==================== Link: https://lore.kernel.org/r/20231129222424.910148-1-pctammela@mojatatu.comSigned-off-by:
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Pedro Tammela authored
Remove this generic file and move the tests to their appropriate files Signed-off-by:
Pedro Tammela <pctammela@mojatatu.com> Acked-by:
Jamal Hadi Salim <jhs@mojatatu.com> Link: https://lore.kernel.org/r/20231129222424.910148-5-pctammela@mojatatu.comSigned-off-by:
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Pedro Tammela authored
All tests in this file pertain to flower, so name it appropriately Signed-off-by:
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Pedro Tammela authored
Patchwork CI didn't like the extra './', so remove it. Signed-off-by:
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Pedro Tammela authored
Tests using DEV2 should not be run in a dedicated net namespace, and in parallel, as this device cannot be shared. Signed-off-by:
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Jakub Kicinski authored
To increase the chances of people finding the rendered docs add a link to specs.rst and index.rst. Add a label in the generated index.rst and while at it adjust the title a little bit. Reviewed-by:
Breno Leitao <leitao@debian.org> Reviewed-by:
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Jakub Kicinski authored
Shinas Rasheed says: ==================== support OCTEON CN98 devices Implement device unload control net API required for CN98 devices and add support in driver for the same. V1: https://lore.kernel.org/all/20231127162135.2529363-1-srasheed@marvell.com/ ==================== Link: https://lore.kernel.org/r/20231129045348.2538843-1-srasheed@marvell.comSigned-off-by:
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Shinas Rasheed authored
Add PCI Endpoint NIC support for Octeon CN98 devices. CN98 devices are part of Octeon 9 family products with similar PCI NIC characteristics to CN93, already supported driver. Add CN98 card to the device id table, as well as support differences in the register fields and certain usage scenarios such as unload. Signed-off-by:
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Shinas Rasheed authored
Device unload control net function should inform firmware of driver unload to let it take necessary actions to cleanup. Signed-off-by:
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Andy Shevchenko authored
BYTES_PER_KBIT is defined in units.h, use that definition. Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by:
Vinicius Costa Gomes <vinicius.gomes@intel.com> Reviewed-by:
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Andrew Halaney authored
Currently the phy reset sequence is as shown below for a devicetree described mdio phy on boot: 1. Assert the phy_device's reset as part of registering 2. Deassert the phy_device's reset as part of registering 3. Deassert the phy_device's reset as part of phy_probe 4. Deassert the phy_device's reset as part of phy_hw_init The extra two deasserts include waiting the deassert delay afterwards, which is adding unnecessary delay. This applies to both possible types of resets (reset controller reference and a reset gpio) that can be used. Here's some snipped tracing output using the following command line params "trace_event=gpio:* trace_options=stacktrace" illustrating the reset handling and where its coming from: /* Assert */ systemd-udevd-283 [002] ..... 6.780434: gpio_value: 544 set 0 systemd-udevd-283 [002] ..... 6.783849: <stack trace> => gpiod_set_raw_value_commit => gpiod_set_value_nocheck => gpiod_set_value_cansleep => mdio_device_reset => mdiobus_register_device => phy_device_register => fwnode_mdiobus_phy_device_register => fwnode_mdiobus_register_phy => __of_mdiobus_register => stmmac_mdio_register => stmmac_dvr_probe => stmmac_pltfr_probe => devm_stmmac_pltfr_probe => qcom_ethqos_probe => platform_probe /* Deassert */ systemd-udevd-283 [002] ..... 6.802480: gpio_value: 544 set 1 systemd-udevd-283 [002] ..... 6.805886: <stack trace> => gpiod_set_raw_value_commit => gpiod_set_value_nocheck => gpiod_set_value_cansleep => mdio_device_reset => phy_device_register => fwnode_mdiobus_phy_device_register => fwnode_mdiobus_register_phy => __of_mdiobus_register => stmmac_mdio_register => stmmac_dvr_probe => stmmac_pltfr_probe => devm_stmmac_pltfr_probe => qcom_ethqos_probe => platform_probe /* Deassert */ systemd-udevd-283 [002] ..... 6.882601: gpio_value: 544 set 1 systemd-udevd-283 [002] ..... 6.886014: <stack trace> => gpiod_set_raw_value_commit => gpiod_set_value_nocheck => gpiod_set_value_cansleep => mdio_device_reset => phy_probe => really_probe => __driver_probe_device => driver_probe_device => __device_attach_driver => bus_for_each_drv => __device_attach => device_initial_probe => bus_probe_device => device_add => phy_device_register => fwnode_mdiobus_phy_device_register => fwnode_mdiobus_register_phy => __of_mdiobus_register => stmmac_mdio_register => stmmac_dvr_probe => stmmac_pltfr_probe => devm_stmmac_pltfr_probe => qcom_ethqos_probe => platform_probe /* Deassert */ NetworkManager-477 [000] ..... 7.023144: gpio_value: 544 set 1 NetworkManager-477 [000] ..... 7.026596: <stack trace> => gpiod_set_raw_value_commit => gpiod_set_value_nocheck => gpiod_set_value_cansleep => mdio_device_reset => phy_init_hw => phy_attach_direct => phylink_fwnode_phy_connect => __stmmac_open => stmmac_open There's a lot of paths where the device is getting its reset asserted and deasserted. Let's track the state and only actually do the assert/deassert when it changes. Reported-by:Sagar Cheluvegowda <quic_scheluve@quicinc.com> Signed-off-by:
Andrew Halaney <ahalaney@redhat.com> Reviewed-by:
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https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextJakub Kicinski authored
Daniel Borkmann says: ==================== pull-request: bpf-next 2023-11-30 We've added 30 non-merge commits during the last 7 day(s) which contain a total of 58 files changed, 1598 insertions(+), 154 deletions(-). The main changes are: 1) Add initial TX metadata implementation for AF_XDP with support in mlx5 and stmmac drivers. Two types of offloads are supported right now, that is, TX timestamp and TX checksum offload, from Stanislav Fomichev with stmmac implementation from Song Yoong Siang. 2) Change BPF verifier logic to validate global subprograms lazily instead of unconditionally before the main program, so they can be guarded using BPF CO-RE techniques, from Andrii Nakryiko. 3) Add BPF link_info support for uprobe multi link along with bpftool integration for the latter, from Jiri Olsa. 4) Use pkg-config in BPF selftests to determine ld flags which is in particular needed for linking statically, from Akihiko Odaki. 5) Fix a few BPF selftest failures to adapt to the upcoming LLVM18, from Yonghong Song. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (30 commits) bpf/tests: Remove duplicate JSGT tests selftests/bpf: Add TX side to xdp_hw_metadata selftests/bpf: Convert xdp_hw_metadata to XDP_USE_NEED_WAKEUP selftests/bpf: Add TX side to xdp_metadata selftests/bpf: Add csum helpers selftests/xsk: Support tx_metadata_len xsk: Add option to calculate TX checksum in SW xsk: Validate xsk_tx_metadata flags xsk: Document tx_metadata_len layout net: stmmac: Add Tx HWTS support to XDP ZC net/mlx5e: Implement AF_XDP TX timestamp and checksum offload tools: ynl: Print xsk-features from the sample xsk: Add TX timestamp and TX checksum offload support xsk: Support tx_metadata_len selftests/bpf: Use pkg-config for libelf selftests/bpf: Override PKG_CONFIG for static builds selftests/bpf: Choose pkg-config for the target bpftool: Add support to display uprobe_multi links selftests/bpf: Add link_info test for uprobe_multi link selftests/bpf: Use bpf_link__destroy in fill_link_info tests ... ==================== Conflicts: Documentation/netlink/specs/netdev.yaml: 839ff60d ("net: page_pool: add nlspec for basic access to page pools") 48eb03dd ("xsk: Add TX timestamp and TX checksum offload support") https://lore.kernel.org/all/20231201094705.1ee3cab8@canb.auug.org.au/ While at it also regen, tree is dirty after: 48eb03dd ("xsk: Add TX timestamp and TX checksum offload support") looks like code wasn't re-rendered after "render-max" was removed. Link: https://lore.kernel.org/r/20231130145708.32573-1-daniel@iogearbox.netSigned-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski authored
Cross-merge networking fixes after downstream PR. No conflicts. Signed-off-by:
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- 30 Nov, 2023 7 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds authored
Pull networking fixes from Paolo Abeni: "Including fixes from bpf and wifi. Current release - regressions: - neighbour: fix __randomize_layout crash in struct neighbour - r8169: fix deadlock on RTL8125 in jumbo mtu mode Previous releases - regressions: - wifi: - mac80211: fix warning at station removal time - cfg80211: fix CQM for non-range use - tools: ynl-gen: fix unexpected response handling - octeontx2-af: fix possible buffer overflow - dpaa2: recycle the RX buffer only after all processing done - rswitch: fix missing dev_kfree_skb_any() in error path Previous releases - always broken: - ipv4: fix uaf issue when receiving igmp query packet - wifi: mac80211: fix debugfs deadlock at device removal time - bpf: - sockmap: af_unix stream sockets need to hold ref for pair sock - netdevsim: don't accept device bound programs - selftests: fix a char signedness issue - dsa: mv88e6xxx: fix marvell 6350 probe crash - octeontx2-pf: restore TC ingress police rules when interface is up - wangxun: fix memory leak on msix entry - ravb: keep reverse order of operations in ravb_remove()" * tag 'net-6.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (51 commits) net: ravb: Keep reverse order of operations in ravb_remove() net: ravb: Stop DMA in case of failures on ravb_open() net: ravb: Start TX queues after HW initialization succeeded net: ravb: Make write access to CXR35 first before accessing other EMAC registers net: ravb: Use pm_runtime_resume_and_get() net: ravb: Check return value of reset_control_deassert() net: libwx: fix memory leak on msix entry ice: Fix VF Reset paths when interface in a failed over aggregate bpf, sockmap: Add af_unix test with both sockets in map bpf, sockmap: af_unix stream sockets need to hold ref for pair sock tools: ynl-gen: always construct struct ynl_req_state ethtool: don't propagate EOPNOTSUPP from dumps ravb: Fix races between ravb_tx_timeout_work() and net related ops r8169: prevent potential deadlock in rtl8169_close r8169: fix deadlock on RTL8125 in jumbo mtu mode neighbour: Fix __randomize_layout crash in struct neighbour octeontx2-pf: Restore TC ingress police rules when interface is up octeontx2-pf: Fix adding mbox work queue entry when num_vfs > 64 net: stmmac: xgmac: Disable FPE MMC interrupts octeontx2-af: Fix possible buffer overflow ... -
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pmLinus Torvalds authored
Pull pmdomain fix from Ulf Hansson: - Avoid polling for the scmi_perf_domain on arm * tag 'pmdomain-v6.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm: pmdomain: arm: Avoid polling for scmi_perf_domain
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmcLinus Torvalds authored
Pull MMC fixes from Ulf Hansson: "MMC core: - Fix CQE error recovery path MMC host: - cqhci: Fix CQE error recovery path - sdhci-pci-gli: Fix initialization of LPM - sdhci-sprd: Fix enabling/disabling of the vqmmc regulator" * tag 'mmc-v6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: sdhci-sprd: Fix vqmmc not shutting down after the card was pulled mmc: sdhci-pci-gli: Disable LPM during initialization mmc: cqhci: Fix task clearing in CQE error recovery mmc: cqhci: Warn of halt or task clear failure mmc: block: Retry commands in CQE error recovery mmc: block: Be sure to wait while busy in CQE error recovery mmc: cqhci: Increase recovery halt timeout mmc: block: Do not lose cache flush during CQE error recovery
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/ledsLinus Torvalds authored
Pull LED fix from Lee Jones: - Remove duplicate sysfs entry 'color' from LEDs class * tag 'leds-fixes-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds: leds: class: Don't expose color sysfs entry
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git://git.kernel.org/pub/scm/linux/kernel/git/efi/efiLinus Torvalds authored
Pull EFI fix from Ard Biesheuvel: - Fix for EFI unaccepted memory handling * tag 'efi-urgent-for-v6.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi: efi/unaccepted: Fix off-by-one when checking for overlapping ranges
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Eric Dumazet authored
syzbot was able to trigger a crash [1] in page_pool_unlist() page_pool_list() only inserts a page pool into a netdev page pool list if a netdev was set in params. Even if the kzalloc() call in page_pool_create happens to initialize pool->user.list, I chose to be more explicit in page_pool_list() adding one INIT_HLIST_NODE(). We could test in page_pool_unlist() if netdev was set, but since netdev can be changed to lo, it seems more robust to check if pool->user.list is hashed before calling hlist_del(). [1] Illegal XDP return value 4294946546 on prog (id 2) dev N/A, expect packet loss! general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 5064 Comm: syz-executor391 Not tainted 6.7.0-rc2-syzkaller-00533-ga3799729 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:__hlist_del include/linux/list.h:988 [inline] RIP: 0010:hlist_del include/linux/list.h:1002 [inline] RIP: 0010:page_pool_unlist+0xd1/0x170 net/core/page_pool_user.c:342 Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 90 00 00 00 4c 8b a3 f0 06 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 68 48 85 ed 49 89 2c 24 74 24 e8 1b ca 07 f9 48 8d RSP: 0018:ffffc900039ff768 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88814ae02000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88814ae026f0 RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff1d57fdc R10: ffffffff8eabfee3 R11: ffffffff8aa0008b R12: 0000000000000000 R13: ffff88814ae02000 R14: dffffc0000000000 R15: 0000000000000001 FS: 000055555717a380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000002555398 CR3: 0000000025044000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __page_pool_destroy net/core/page_pool.c:851 [inline] page_pool_release+0x507/0x6b0 net/core/page_pool.c:891 page_pool_destroy+0x1ac/0x4c0 net/core/page_pool.c:956 xdp_test_run_teardown net/bpf/test_run.c:216 [inline] bpf_test_run_xdp_live+0x1578/0x1af0 net/bpf/test_run.c:388 bpf_prog_test_run_xdp+0x827/0x1530 net/bpf/test_run.c:1254 bpf_prog_test_run kernel/bpf/syscall.c:4041 [inline] __sys_bpf+0x11bf/0x4920 kernel/bpf/syscall.c:5402 __do_sys_bpf kernel/bpf/syscall.c:5488 [inline] __se_sys_bpf kernel/bpf/syscall.c:5486 [inline] __x64_sys_bpf+0x78/0xc0 kernel/bpf/syscall.c:5486 Fixes: 083772c9 ("net: page_pool: record pools per netdev") Reported-and-tested-by: syzbot+f9f8efb58a4db2ca98d0@syzkaller.appspotmail.com Signed-off-by:
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Paolo Abeni authored
Uwe Kleine-König says: ==================== net: ethernet: Convert to platform remove callback returning void in (implicit) v1 of this series (https://lore.kernel.org/netdev/20231117091655.872426-1-u.kleine-koenig@pengutronix.de) I tried to address the resource leaks in the three cpsw drivers. However this is hard to get right without being able to test the changes. So here comes a series that just converts all drivers below drivers/net/ethernet to use .remove_new() and adds a comment about the potential leaks for someone else to fix the problem. See commit 5c5a7680 ("platform: Provide a remove callback that returns no value") for an extended explanation and the eventual goal. The TL;DR; is to prevent bugs like the three noticed here. Note this series results in no change of behaviour apart from improving the error message for the three cpsw drivers from remove callback returned a non-zero value. This will be ignored. to Failed to resume device (-ESOMETHING) ==================== Link: https://lore.kernel.org/r/20231128173823.867512-1-u.kleine-koenig@pengutronix.deSigned-off-by:
Paolo Abeni <pabeni@redhat.com>
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